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Merge branches 'acpi-resources', 'acpi-battery', 'acpi-doc' and 'acpi-pnp'
[linux-2.6-block.git] / drivers / net / ethernet / intel / i40e / i40e_main.c
CommitLineData
41c445ff
JB		 1/*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
e827845c 4 * Copyright(c) 2013 - 2015 Intel Corporation.
41c445ff
JB		 5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
dc641b73
GR		 15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
41c445ff
JB		 17 *
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
20 *
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 ******************************************************************************/
26
27/* Local includes */
28#include "i40e.h"
4eb3f768 29#include "i40e_diag.h"
a1c9a9d9
JK		 30#ifdef CONFIG_I40E_VXLAN
31#include <net/vxlan.h>
32#endif
41c445ff
JB		 33
34const char i40e_driver_name[] = "i40e";
35static const char i40e_driver_string[] =
36 "Intel(R) Ethernet Connection XL710 Network Driver";
37
38#define DRV_KERN "-k"
39
e8e724db 40#define DRV_VERSION_MAJOR 1
42d255ce 41#define DRV_VERSION_MINOR 3
2aea6dcb 42#define DRV_VERSION_BUILD 2
41c445ff
JB		 43#define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
44 __stringify(DRV_VERSION_MINOR) "." \
45 __stringify(DRV_VERSION_BUILD) DRV_KERN
46const char i40e_driver_version_str[] = DRV_VERSION;
8fb905b3 47static const char i40e_copyright[] = "Copyright (c) 2013 - 2014 Intel Corporation.";
41c445ff
JB		 48
49/* a bit of forward declarations */
50static void i40e_vsi_reinit_locked(struct i40e_vsi *vsi);
51static void i40e_handle_reset_warning(struct i40e_pf *pf);
52static int i40e_add_vsi(struct i40e_vsi *vsi);
53static int i40e_add_veb(struct i40e_veb *veb, struct i40e_vsi *vsi);
bc7d338f 54static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit);
41c445ff
JB		 55static int i40e_setup_misc_vector(struct i40e_pf *pf);
56static void i40e_determine_queue_usage(struct i40e_pf *pf);
57static int i40e_setup_pf_filter_control(struct i40e_pf *pf);
cbf61325 58static void i40e_fdir_sb_setup(struct i40e_pf *pf);
4e3b35b0 59static int i40e_veb_get_bw_info(struct i40e_veb *veb);
41c445ff
JB		 60
61/* i40e_pci_tbl - PCI Device ID Table
62 *
63 * Last entry must be all 0s
64 *
65 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
66 * Class, Class Mask, private data (not used) }
67 */
9baa3c34 68static const struct pci_device_id i40e_pci_tbl[] = {
ab60085e 69 {PCI_VDEVICE(INTEL, I40E_DEV_ID_SFP_XL710), 0},
ab60085e
SN		 70 {PCI_VDEVICE(INTEL, I40E_DEV_ID_QEMU), 0},
71 {PCI_VDEVICE(INTEL, I40E_DEV_ID_KX_A), 0},
72 {PCI_VDEVICE(INTEL, I40E_DEV_ID_KX_B), 0},
73 {PCI_VDEVICE(INTEL, I40E_DEV_ID_KX_C), 0},
ab60085e
SN		 74 {PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_A), 0},
75 {PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_B), 0},
76 {PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_C), 0},
5960d33f 77 {PCI_VDEVICE(INTEL, I40E_DEV_ID_10G_BASE_T), 0},
ae24b409 78 {PCI_VDEVICE(INTEL, I40E_DEV_ID_20G_KR2), 0},
41c445ff
JB		 79 /* required last entry */
80 {0, }
81};
82MODULE_DEVICE_TABLE(pci, i40e_pci_tbl);
83
84#define I40E_MAX_VF_COUNT 128
85static int debug = -1;
86module_param(debug, int, 0);
87MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
88
89MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
90MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
91MODULE_LICENSE("GPL");
92MODULE_VERSION(DRV_VERSION);
93
94/**
95 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
96 * @hw: pointer to the HW structure
97 * @mem: ptr to mem struct to fill out
98 * @size: size of memory requested
99 * @alignment: what to align the allocation to
100 **/
101int i40e_allocate_dma_mem_d(struct i40e_hw *hw, struct i40e_dma_mem *mem,
102 u64 size, u32 alignment)
103{
104 struct i40e_pf *pf = (struct i40e_pf *)hw->back;
105
106 mem->size = ALIGN(size, alignment);
107 mem->va = dma_zalloc_coherent(&pf->pdev->dev, mem->size,
108 &mem->pa, GFP_KERNEL);
93bc73b8
JB		 109 if (!mem->va)
110 return -ENOMEM;
41c445ff 111
93bc73b8 112 return 0;
41c445ff
JB		 113}
114
115/**
116 * i40e_free_dma_mem_d - OS specific memory free for shared code
117 * @hw: pointer to the HW structure
118 * @mem: ptr to mem struct to free
119 **/
120int i40e_free_dma_mem_d(struct i40e_hw *hw, struct i40e_dma_mem *mem)
121{
122 struct i40e_pf *pf = (struct i40e_pf *)hw->back;
123
124 dma_free_coherent(&pf->pdev->dev, mem->size, mem->va, mem->pa);
125 mem->va = NULL;
126 mem->pa = 0;
127 mem->size = 0;
128
129 return 0;
130}
131
132/**
133 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
134 * @hw: pointer to the HW structure
135 * @mem: ptr to mem struct to fill out
136 * @size: size of memory requested
137 **/
138int i40e_allocate_virt_mem_d(struct i40e_hw *hw, struct i40e_virt_mem *mem,
139 u32 size)
140{
141 mem->size = size;
142 mem->va = kzalloc(size, GFP_KERNEL);
143
93bc73b8
JB		 144 if (!mem->va)
145 return -ENOMEM;
41c445ff 146
93bc73b8 147 return 0;
41c445ff
JB		 148}
149
150/**
151 * i40e_free_virt_mem_d - OS specific memory free for shared code
152 * @hw: pointer to the HW structure
153 * @mem: ptr to mem struct to free
154 **/
155int i40e_free_virt_mem_d(struct i40e_hw *hw, struct i40e_virt_mem *mem)
156{
157 /* it's ok to kfree a NULL pointer */
158 kfree(mem->va);
159 mem->va = NULL;
160 mem->size = 0;
161
162 return 0;
163}
164
165/**
166 * i40e_get_lump - find a lump of free generic resource
167 * @pf: board private structure
168 * @pile: the pile of resource to search
169 * @needed: the number of items needed
170 * @id: an owner id to stick on the items assigned
171 *
172 * Returns the base item index of the lump, or negative for error
173 *
174 * The search_hint trick and lack of advanced fit-finding only work
175 * because we're highly likely to have all the same size lump requests.
176 * Linear search time and any fragmentation should be minimal.
177 **/
178static int i40e_get_lump(struct i40e_pf *pf, struct i40e_lump_tracking *pile,
179 u16 needed, u16 id)
180{
181 int ret = -ENOMEM;
ddf434ac 182 int i, j;
41c445ff
JB		 183
184 if (!pile || needed == 0 || id >= I40E_PILE_VALID_BIT) {
185 dev_info(&pf->pdev->dev,
186 "param err: pile=%p needed=%d id=0x%04x\n",
187 pile, needed, id);
188 return -EINVAL;
189 }
190
191 /* start the linear search with an imperfect hint */
192 i = pile->search_hint;
ddf434ac 193 while (i < pile->num_entries) {
41c445ff
JB		 194 /* skip already allocated entries */
195 if (pile->list[i] & I40E_PILE_VALID_BIT) {
196 i++;
197 continue;
198 }
199
200 /* do we have enough in this lump? */
201 for (j = 0; (j < needed) && ((i+j) < pile->num_entries); j++) {
202 if (pile->list[i+j] & I40E_PILE_VALID_BIT)
203 break;
204 }
205
206 if (j == needed) {
207 /* there was enough, so assign it to the requestor */
208 for (j = 0; j < needed; j++)
209 pile->list[i+j] = id | I40E_PILE_VALID_BIT;
210 ret = i;
211 pile->search_hint = i + j;
ddf434ac 212 break;
41c445ff
JB		 213 } else {
214 /* not enough, so skip over it and continue looking */
215 i += j;
216 }
217 }
218
219 return ret;
220}
221
222/**
223 * i40e_put_lump - return a lump of generic resource
224 * @pile: the pile of resource to search
225 * @index: the base item index
226 * @id: the owner id of the items assigned
227 *
228 * Returns the count of items in the lump
229 **/
230static int i40e_put_lump(struct i40e_lump_tracking *pile, u16 index, u16 id)
231{
232 int valid_id = (id | I40E_PILE_VALID_BIT);
233 int count = 0;
234 int i;
235
236 if (!pile || index >= pile->num_entries)
237 return -EINVAL;
238
239 for (i = index;
240 i < pile->num_entries && pile->list[i] == valid_id;
241 i++) {
242 pile->list[i] = 0;
243 count++;
244 }
245
246 if (count && index < pile->search_hint)
247 pile->search_hint = index;
248
249 return count;
250}
251
fdf0e0bf
ASJ		 252/**
253 * i40e_find_vsi_from_id - searches for the vsi with the given id
254 * @pf - the pf structure to search for the vsi
255 * @id - id of the vsi it is searching for
256 **/
257struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id)
258{
259 int i;
260
261 for (i = 0; i < pf->num_alloc_vsi; i++)
262 if (pf->vsi[i] && (pf->vsi[i]->id == id))
263 return pf->vsi[i];
264
265 return NULL;
266}
267
41c445ff
JB		 268/**
269 * i40e_service_event_schedule - Schedule the service task to wake up
270 * @pf: board private structure
271 *
272 * If not already scheduled, this puts the task into the work queue
273 **/
274static void i40e_service_event_schedule(struct i40e_pf *pf)
275{
276 if (!test_bit(__I40E_DOWN, &pf->state) &&
277 !test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) &&
278 !test_and_set_bit(__I40E_SERVICE_SCHED, &pf->state))
279 schedule_work(&pf->service_task);
280}
281
282/**
283 * i40e_tx_timeout - Respond to a Tx Hang
284 * @netdev: network interface device structure
285 *
286 * If any port has noticed a Tx timeout, it is likely that the whole
287 * device is munged, not just the one netdev port, so go for the full
288 * reset.
289 **/
38e00438
VD		 290#ifdef I40E_FCOE
291void i40e_tx_timeout(struct net_device *netdev)
292#else
41c445ff 293static void i40e_tx_timeout(struct net_device *netdev)
38e00438 294#endif
41c445ff
JB		 295{
296 struct i40e_netdev_priv *np = netdev_priv(netdev);
297 struct i40e_vsi *vsi = np->vsi;
298 struct i40e_pf *pf = vsi->back;
299
300 pf->tx_timeout_count++;
301
302 if (time_after(jiffies, (pf->tx_timeout_last_recovery + HZ*20)))
327fe04b 303 pf->tx_timeout_recovery_level = 1;
41c445ff
JB		 304 pf->tx_timeout_last_recovery = jiffies;
305 netdev_info(netdev, "tx_timeout recovery level %d\n",
306 pf->tx_timeout_recovery_level);
307
308 switch (pf->tx_timeout_recovery_level) {
309 case 0:
310 /* disable and re-enable queues for the VSI */
311 if (in_interrupt()) {
312 set_bit(__I40E_REINIT_REQUESTED, &pf->state);
313 set_bit(__I40E_REINIT_REQUESTED, &vsi->state);
314 } else {
315 i40e_vsi_reinit_locked(vsi);
316 }
317 break;
318 case 1:
319 set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
320 break;
321 case 2:
322 set_bit(__I40E_CORE_RESET_REQUESTED, &pf->state);
323 break;
324 case 3:
325 set_bit(__I40E_GLOBAL_RESET_REQUESTED, &pf->state);
326 break;
327 default:
328 netdev_err(netdev, "tx_timeout recovery unsuccessful\n");
b5d06f05
NP		 329 set_bit(__I40E_DOWN_REQUESTED, &pf->state);
330 set_bit(__I40E_DOWN_REQUESTED, &vsi->state);
41c445ff
JB		 331 break;
332 }
333 i40e_service_event_schedule(pf);
334 pf->tx_timeout_recovery_level++;
335}
336
337/**
338 * i40e_release_rx_desc - Store the new tail and head values
339 * @rx_ring: ring to bump
340 * @val: new head index
341 **/
342static inline void i40e_release_rx_desc(struct i40e_ring *rx_ring, u32 val)
343{
344 rx_ring->next_to_use = val;
345
346 /* Force memory writes to complete before letting h/w
347 * know there are new descriptors to fetch. (Only
348 * applicable for weak-ordered memory model archs,
349 * such as IA-64).
350 */
351 wmb();
352 writel(val, rx_ring->tail);
353}
354
355/**
356 * i40e_get_vsi_stats_struct - Get System Network Statistics
357 * @vsi: the VSI we care about
358 *
359 * Returns the address of the device statistics structure.
360 * The statistics are actually updated from the service task.
361 **/
362struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi)
363{
364 return &vsi->net_stats;
365}
366
367/**
368 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
369 * @netdev: network interface device structure
370 *
371 * Returns the address of the device statistics structure.
372 * The statistics are actually updated from the service task.
373 **/
38e00438
VD		 374#ifdef I40E_FCOE
375struct rtnl_link_stats64 *i40e_get_netdev_stats_struct(
376 struct net_device *netdev,
377 struct rtnl_link_stats64 *stats)
378#else
41c445ff
JB		 379static struct rtnl_link_stats64 *i40e_get_netdev_stats_struct(
380 struct net_device *netdev,
980e9b11 381 struct rtnl_link_stats64 *stats)
38e00438 382#endif
41c445ff
JB		 383{
384 struct i40e_netdev_priv *np = netdev_priv(netdev);
e7046ee1 385 struct i40e_ring *tx_ring, *rx_ring;
41c445ff 386 struct i40e_vsi *vsi = np->vsi;
980e9b11
AD		 387 struct rtnl_link_stats64 *vsi_stats = i40e_get_vsi_stats_struct(vsi);
388 int i;
389
bc7d338f
ASJ		 390 if (test_bit(__I40E_DOWN, &vsi->state))
391 return stats;
392
3c325ced
JB		 393 if (!vsi->tx_rings)
394 return stats;
395
980e9b11
AD		 396 rcu_read_lock();
397 for (i = 0; i < vsi->num_queue_pairs; i++) {
980e9b11
AD		 398 u64 bytes, packets;
399 unsigned int start;
400
401 tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
402 if (!tx_ring)
403 continue;
404
405 do {
57a7744e 406 start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
980e9b11
AD		 407 packets = tx_ring->stats.packets;
408 bytes = tx_ring->stats.bytes;
57a7744e 409 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
980e9b11
AD		 410
411 stats->tx_packets += packets;
412 stats->tx_bytes += bytes;
413 rx_ring = &tx_ring[1];
414
415 do {
57a7744e 416 start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
980e9b11
AD		 417 packets = rx_ring->stats.packets;
418 bytes = rx_ring->stats.bytes;
57a7744e 419 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
41c445ff 420
980e9b11
AD		 421 stats->rx_packets += packets;
422 stats->rx_bytes += bytes;
423 }
424 rcu_read_unlock();
425
a5282f44 426 /* following stats updated by i40e_watchdog_subtask() */
980e9b11
AD		 427 stats->multicast = vsi_stats->multicast;
428 stats->tx_errors = vsi_stats->tx_errors;
429 stats->tx_dropped = vsi_stats->tx_dropped;
430 stats->rx_errors = vsi_stats->rx_errors;
431 stats->rx_crc_errors = vsi_stats->rx_crc_errors;
432 stats->rx_length_errors = vsi_stats->rx_length_errors;
41c445ff 433
980e9b11 434 return stats;
41c445ff
JB		 435}
436
437/**
438 * i40e_vsi_reset_stats - Resets all stats of the given vsi
439 * @vsi: the VSI to have its stats reset
440 **/
441void i40e_vsi_reset_stats(struct i40e_vsi *vsi)
442{
443 struct rtnl_link_stats64 *ns;
444 int i;
445
446 if (!vsi)
447 return;
448
449 ns = i40e_get_vsi_stats_struct(vsi);
450 memset(ns, 0, sizeof(*ns));
451 memset(&vsi->net_stats_offsets, 0, sizeof(vsi->net_stats_offsets));
452 memset(&vsi->eth_stats, 0, sizeof(vsi->eth_stats));
453 memset(&vsi->eth_stats_offsets, 0, sizeof(vsi->eth_stats_offsets));
8e9dca53 454 if (vsi->rx_rings && vsi->rx_rings[0]) {
41c445ff 455 for (i = 0; i < vsi->num_queue_pairs; i++) {
9f65e15b
AD		 456 memset(&vsi->rx_rings[i]->stats, 0 ,
457 sizeof(vsi->rx_rings[i]->stats));
458 memset(&vsi->rx_rings[i]->rx_stats, 0 ,
459 sizeof(vsi->rx_rings[i]->rx_stats));
460 memset(&vsi->tx_rings[i]->stats, 0 ,
461 sizeof(vsi->tx_rings[i]->stats));
462 memset(&vsi->tx_rings[i]->tx_stats, 0,
463 sizeof(vsi->tx_rings[i]->tx_stats));
41c445ff 464 }
8e9dca53 465 }
41c445ff
JB		 466 vsi->stat_offsets_loaded = false;
467}
468
469/**
b40c82e6 470 * i40e_pf_reset_stats - Reset all of the stats for the given PF
41c445ff
JB		 471 * @pf: the PF to be reset
472 **/
473void i40e_pf_reset_stats(struct i40e_pf *pf)
474{
e91fdf76
SN		 475 int i;
476
41c445ff
JB		 477 memset(&pf->stats, 0, sizeof(pf->stats));
478 memset(&pf->stats_offsets, 0, sizeof(pf->stats_offsets));
479 pf->stat_offsets_loaded = false;
e91fdf76
SN		 480
481 for (i = 0; i < I40E_MAX_VEB; i++) {
482 if (pf->veb[i]) {
483 memset(&pf->veb[i]->stats, 0,
484 sizeof(pf->veb[i]->stats));
485 memset(&pf->veb[i]->stats_offsets, 0,
486 sizeof(pf->veb[i]->stats_offsets));
487 pf->veb[i]->stat_offsets_loaded = false;
488 }
489 }
41c445ff
JB		 490}
491
492/**
493 * i40e_stat_update48 - read and update a 48 bit stat from the chip
494 * @hw: ptr to the hardware info
495 * @hireg: the high 32 bit reg to read
496 * @loreg: the low 32 bit reg to read
497 * @offset_loaded: has the initial offset been loaded yet
498 * @offset: ptr to current offset value
499 * @stat: ptr to the stat
500 *
501 * Since the device stats are not reset at PFReset, they likely will not
502 * be zeroed when the driver starts. We'll save the first values read
503 * and use them as offsets to be subtracted from the raw values in order
504 * to report stats that count from zero. In the process, we also manage
505 * the potential roll-over.
506 **/
507static void i40e_stat_update48(struct i40e_hw *hw, u32 hireg, u32 loreg,
508 bool offset_loaded, u64 *offset, u64 *stat)
509{
510 u64 new_data;
511
ab60085e 512 if (hw->device_id == I40E_DEV_ID_QEMU) {
41c445ff
JB		 513 new_data = rd32(hw, loreg);
514 new_data |= ((u64)(rd32(hw, hireg) & 0xFFFF)) << 32;
515 } else {
516 new_data = rd64(hw, loreg);
517 }
518 if (!offset_loaded)
519 *offset = new_data;
520 if (likely(new_data >= *offset))
521 *stat = new_data - *offset;
522 else
523 *stat = (new_data + ((u64)1 << 48)) - *offset;
524 *stat &= 0xFFFFFFFFFFFFULL;
525}
526
527/**
528 * i40e_stat_update32 - read and update a 32 bit stat from the chip
529 * @hw: ptr to the hardware info
530 * @reg: the hw reg to read
531 * @offset_loaded: has the initial offset been loaded yet
532 * @offset: ptr to current offset value
533 * @stat: ptr to the stat
534 **/
535static void i40e_stat_update32(struct i40e_hw *hw, u32 reg,
536 bool offset_loaded, u64 *offset, u64 *stat)
537{
538 u32 new_data;
539
540 new_data = rd32(hw, reg);
541 if (!offset_loaded)
542 *offset = new_data;
543 if (likely(new_data >= *offset))
544 *stat = (u32)(new_data - *offset);
545 else
546 *stat = (u32)((new_data + ((u64)1 << 32)) - *offset);
547}
548
549/**
550 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
551 * @vsi: the VSI to be updated
552 **/
553void i40e_update_eth_stats(struct i40e_vsi *vsi)
554{
555 int stat_idx = le16_to_cpu(vsi->info.stat_counter_idx);
556 struct i40e_pf *pf = vsi->back;
557 struct i40e_hw *hw = &pf->hw;
558 struct i40e_eth_stats *oes;
559 struct i40e_eth_stats *es; /* device's eth stats */
560
561 es = &vsi->eth_stats;
562 oes = &vsi->eth_stats_offsets;
563
564 /* Gather up the stats that the hw collects */
565 i40e_stat_update32(hw, I40E_GLV_TEPC(stat_idx),
566 vsi->stat_offsets_loaded,
567 &oes->tx_errors, &es->tx_errors);
568 i40e_stat_update32(hw, I40E_GLV_RDPC(stat_idx),
569 vsi->stat_offsets_loaded,
570 &oes->rx_discards, &es->rx_discards);
41a9e55c
SN		 571 i40e_stat_update32(hw, I40E_GLV_RUPP(stat_idx),
572 vsi->stat_offsets_loaded,
573 &oes->rx_unknown_protocol, &es->rx_unknown_protocol);
574 i40e_stat_update32(hw, I40E_GLV_TEPC(stat_idx),
575 vsi->stat_offsets_loaded,
576 &oes->tx_errors, &es->tx_errors);
41c445ff
JB		 577
578 i40e_stat_update48(hw, I40E_GLV_GORCH(stat_idx),
579 I40E_GLV_GORCL(stat_idx),
580 vsi->stat_offsets_loaded,
581 &oes->rx_bytes, &es->rx_bytes);
582 i40e_stat_update48(hw, I40E_GLV_UPRCH(stat_idx),
583 I40E_GLV_UPRCL(stat_idx),
584 vsi->stat_offsets_loaded,
585 &oes->rx_unicast, &es->rx_unicast);
586 i40e_stat_update48(hw, I40E_GLV_MPRCH(stat_idx),
587 I40E_GLV_MPRCL(stat_idx),
588 vsi->stat_offsets_loaded,
589 &oes->rx_multicast, &es->rx_multicast);
590 i40e_stat_update48(hw, I40E_GLV_BPRCH(stat_idx),
591 I40E_GLV_BPRCL(stat_idx),
592 vsi->stat_offsets_loaded,
593 &oes->rx_broadcast, &es->rx_broadcast);
594
595 i40e_stat_update48(hw, I40E_GLV_GOTCH(stat_idx),
596 I40E_GLV_GOTCL(stat_idx),
597 vsi->stat_offsets_loaded,
598 &oes->tx_bytes, &es->tx_bytes);
599 i40e_stat_update48(hw, I40E_GLV_UPTCH(stat_idx),
600 I40E_GLV_UPTCL(stat_idx),
601 vsi->stat_offsets_loaded,
602 &oes->tx_unicast, &es->tx_unicast);
603 i40e_stat_update48(hw, I40E_GLV_MPTCH(stat_idx),
604 I40E_GLV_MPTCL(stat_idx),
605 vsi->stat_offsets_loaded,
606 &oes->tx_multicast, &es->tx_multicast);
607 i40e_stat_update48(hw, I40E_GLV_BPTCH(stat_idx),
608 I40E_GLV_BPTCL(stat_idx),
609 vsi->stat_offsets_loaded,
610 &oes->tx_broadcast, &es->tx_broadcast);
611 vsi->stat_offsets_loaded = true;
612}
613
614/**
615 * i40e_update_veb_stats - Update Switch component statistics
616 * @veb: the VEB being updated
617 **/
618static void i40e_update_veb_stats(struct i40e_veb *veb)
619{
620 struct i40e_pf *pf = veb->pf;
621 struct i40e_hw *hw = &pf->hw;
622 struct i40e_eth_stats *oes;
623 struct i40e_eth_stats *es; /* device's eth stats */
624 int idx = 0;
625
626 idx = veb->stats_idx;
627 es = &veb->stats;
628 oes = &veb->stats_offsets;
629
630 /* Gather up the stats that the hw collects */
631 i40e_stat_update32(hw, I40E_GLSW_TDPC(idx),
632 veb->stat_offsets_loaded,
633 &oes->tx_discards, &es->tx_discards);
7134f9ce
JB		 634 if (hw->revision_id > 0)
635 i40e_stat_update32(hw, I40E_GLSW_RUPP(idx),
636 veb->stat_offsets_loaded,
637 &oes->rx_unknown_protocol,
638 &es->rx_unknown_protocol);
41c445ff
JB		 639 i40e_stat_update48(hw, I40E_GLSW_GORCH(idx), I40E_GLSW_GORCL(idx),
640 veb->stat_offsets_loaded,
641 &oes->rx_bytes, &es->rx_bytes);
642 i40e_stat_update48(hw, I40E_GLSW_UPRCH(idx), I40E_GLSW_UPRCL(idx),
643 veb->stat_offsets_loaded,
644 &oes->rx_unicast, &es->rx_unicast);
645 i40e_stat_update48(hw, I40E_GLSW_MPRCH(idx), I40E_GLSW_MPRCL(idx),
646 veb->stat_offsets_loaded,
647 &oes->rx_multicast, &es->rx_multicast);
648 i40e_stat_update48(hw, I40E_GLSW_BPRCH(idx), I40E_GLSW_BPRCL(idx),
649 veb->stat_offsets_loaded,
650 &oes->rx_broadcast, &es->rx_broadcast);
651
652 i40e_stat_update48(hw, I40E_GLSW_GOTCH(idx), I40E_GLSW_GOTCL(idx),
653 veb->stat_offsets_loaded,
654 &oes->tx_bytes, &es->tx_bytes);
655 i40e_stat_update48(hw, I40E_GLSW_UPTCH(idx), I40E_GLSW_UPTCL(idx),
656 veb->stat_offsets_loaded,
657 &oes->tx_unicast, &es->tx_unicast);
658 i40e_stat_update48(hw, I40E_GLSW_MPTCH(idx), I40E_GLSW_MPTCL(idx),
659 veb->stat_offsets_loaded,
660 &oes->tx_multicast, &es->tx_multicast);
661 i40e_stat_update48(hw, I40E_GLSW_BPTCH(idx), I40E_GLSW_BPTCL(idx),
662 veb->stat_offsets_loaded,
663 &oes->tx_broadcast, &es->tx_broadcast);
664 veb->stat_offsets_loaded = true;
665}
666
38e00438
VD		 667#ifdef I40E_FCOE
668/**
669 * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters.
670 * @vsi: the VSI that is capable of doing FCoE
671 **/
672static void i40e_update_fcoe_stats(struct i40e_vsi *vsi)
673{
674 struct i40e_pf *pf = vsi->back;
675 struct i40e_hw *hw = &pf->hw;
676 struct i40e_fcoe_stats *ofs;
677 struct i40e_fcoe_stats *fs; /* device's eth stats */
678 int idx;
679
680 if (vsi->type != I40E_VSI_FCOE)
681 return;
682
683 idx = (pf->pf_seid - I40E_BASE_PF_SEID) + I40E_FCOE_PF_STAT_OFFSET;
684 fs = &vsi->fcoe_stats;
685 ofs = &vsi->fcoe_stats_offsets;
686
687 i40e_stat_update32(hw, I40E_GL_FCOEPRC(idx),
688 vsi->fcoe_stat_offsets_loaded,
689 &ofs->rx_fcoe_packets, &fs->rx_fcoe_packets);
690 i40e_stat_update48(hw, I40E_GL_FCOEDWRCH(idx), I40E_GL_FCOEDWRCL(idx),
691 vsi->fcoe_stat_offsets_loaded,
692 &ofs->rx_fcoe_dwords, &fs->rx_fcoe_dwords);
693 i40e_stat_update32(hw, I40E_GL_FCOERPDC(idx),
694 vsi->fcoe_stat_offsets_loaded,
695 &ofs->rx_fcoe_dropped, &fs->rx_fcoe_dropped);
696 i40e_stat_update32(hw, I40E_GL_FCOEPTC(idx),
697 vsi->fcoe_stat_offsets_loaded,
698 &ofs->tx_fcoe_packets, &fs->tx_fcoe_packets);
699 i40e_stat_update48(hw, I40E_GL_FCOEDWTCH(idx), I40E_GL_FCOEDWTCL(idx),
700 vsi->fcoe_stat_offsets_loaded,
701 &ofs->tx_fcoe_dwords, &fs->tx_fcoe_dwords);
702 i40e_stat_update32(hw, I40E_GL_FCOECRC(idx),
703 vsi->fcoe_stat_offsets_loaded,
704 &ofs->fcoe_bad_fccrc, &fs->fcoe_bad_fccrc);
705 i40e_stat_update32(hw, I40E_GL_FCOELAST(idx),
706 vsi->fcoe_stat_offsets_loaded,
707 &ofs->fcoe_last_error, &fs->fcoe_last_error);
708 i40e_stat_update32(hw, I40E_GL_FCOEDDPC(idx),
709 vsi->fcoe_stat_offsets_loaded,
710 &ofs->fcoe_ddp_count, &fs->fcoe_ddp_count);
711
712 vsi->fcoe_stat_offsets_loaded = true;
713}
714
715#endif
41c445ff
JB		 716/**
717 * i40e_update_link_xoff_rx - Update XOFF received in link flow control mode
718 * @pf: the corresponding PF
719 *
720 * Update the Rx XOFF counter (PAUSE frames) in link flow control mode
721 **/
722static void i40e_update_link_xoff_rx(struct i40e_pf *pf)
723{
724 struct i40e_hw_port_stats *osd = &pf->stats_offsets;
725 struct i40e_hw_port_stats *nsd = &pf->stats;
726 struct i40e_hw *hw = &pf->hw;
727 u64 xoff = 0;
728 u16 i, v;
729
730 if ((hw->fc.current_mode != I40E_FC_FULL) &&
731 (hw->fc.current_mode != I40E_FC_RX_PAUSE))
732 return;
733
734 xoff = nsd->link_xoff_rx;
735 i40e_stat_update32(hw, I40E_GLPRT_LXOFFRXC(hw->port),
736 pf->stat_offsets_loaded,
737 &osd->link_xoff_rx, &nsd->link_xoff_rx);
738
739 /* No new LFC xoff rx */
740 if (!(nsd->link_xoff_rx - xoff))
741 return;
742
743 /* Clear the __I40E_HANG_CHECK_ARMED bit for all Tx rings */
505682cd 744 for (v = 0; v < pf->num_alloc_vsi; v++) {
41c445ff
JB		 745 struct i40e_vsi *vsi = pf->vsi[v];
746
ddfda80f 747 if (!vsi || !vsi->tx_rings[0])
41c445ff
JB		 748 continue;
749
750 for (i = 0; i < vsi->num_queue_pairs; i++) {
9f65e15b 751 struct i40e_ring *ring = vsi->tx_rings[i];
41c445ff
JB		 752 clear_bit(__I40E_HANG_CHECK_ARMED, &ring->state);
753 }
754 }
755}
756
757/**
758 * i40e_update_prio_xoff_rx - Update XOFF received in PFC mode
759 * @pf: the corresponding PF
760 *
761 * Update the Rx XOFF counter (PAUSE frames) in PFC mode
762 **/
763static void i40e_update_prio_xoff_rx(struct i40e_pf *pf)
764{
765 struct i40e_hw_port_stats *osd = &pf->stats_offsets;
766 struct i40e_hw_port_stats *nsd = &pf->stats;
767 bool xoff[I40E_MAX_TRAFFIC_CLASS] = {false};
768 struct i40e_dcbx_config *dcb_cfg;
769 struct i40e_hw *hw = &pf->hw;
770 u16 i, v;
771 u8 tc;
772
773 dcb_cfg = &hw->local_dcbx_config;
774
775 /* See if DCB enabled with PFC TC */
776 if (!(pf->flags & I40E_FLAG_DCB_ENABLED) ||
777 !(dcb_cfg->pfc.pfcenable)) {
778 i40e_update_link_xoff_rx(pf);
779 return;
780 }
781
782 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
783 u64 prio_xoff = nsd->priority_xoff_rx[i];
784 i40e_stat_update32(hw, I40E_GLPRT_PXOFFRXC(hw->port, i),
785 pf->stat_offsets_loaded,
786 &osd->priority_xoff_rx[i],
787 &nsd->priority_xoff_rx[i]);
788
789 /* No new PFC xoff rx */
790 if (!(nsd->priority_xoff_rx[i] - prio_xoff))
791 continue;
792 /* Get the TC for given priority */
793 tc = dcb_cfg->etscfg.prioritytable[i];
794 xoff[tc] = true;
795 }
796
797 /* Clear the __I40E_HANG_CHECK_ARMED bit for Tx rings */
505682cd 798 for (v = 0; v < pf->num_alloc_vsi; v++) {
41c445ff
JB		 799 struct i40e_vsi *vsi = pf->vsi[v];
800
ddfda80f 801 if (!vsi || !vsi->tx_rings[0])
41c445ff
JB		 802 continue;
803
804 for (i = 0; i < vsi->num_queue_pairs; i++) {
9f65e15b 805 struct i40e_ring *ring = vsi->tx_rings[i];
41c445ff
JB		 806
807 tc = ring->dcb_tc;
808 if (xoff[tc])
809 clear_bit(__I40E_HANG_CHECK_ARMED,
810 &ring->state);
811 }
812 }
813}
814
815/**
7812fddc 816 * i40e_update_vsi_stats - Update the vsi statistics counters.
41c445ff
JB		 817 * @vsi: the VSI to be updated
818 *
819 * There are a few instances where we store the same stat in a
820 * couple of different structs. This is partly because we have
821 * the netdev stats that need to be filled out, which is slightly
822 * different from the "eth_stats" defined by the chip and used in
7812fddc 823 * VF communications. We sort it out here.
41c445ff 824 **/
7812fddc 825static void i40e_update_vsi_stats(struct i40e_vsi *vsi)
41c445ff
JB		 826{
827 struct i40e_pf *pf = vsi->back;
41c445ff
JB		 828 struct rtnl_link_stats64 *ons;
829 struct rtnl_link_stats64 *ns; /* netdev stats */
830 struct i40e_eth_stats *oes;
831 struct i40e_eth_stats *es; /* device's eth stats */
832 u32 tx_restart, tx_busy;
bf00b376 833 struct i40e_ring *p;
41c445ff 834 u32 rx_page, rx_buf;
bf00b376
AA		 835 u64 bytes, packets;
836 unsigned int start;
41c445ff
JB		 837 u64 rx_p, rx_b;
838 u64 tx_p, tx_b;
41c445ff
JB		 839 u16 q;
840
841 if (test_bit(__I40E_DOWN, &vsi->state) ||
842 test_bit(__I40E_CONFIG_BUSY, &pf->state))
843 return;
844
845 ns = i40e_get_vsi_stats_struct(vsi);
846 ons = &vsi->net_stats_offsets;
847 es = &vsi->eth_stats;
848 oes = &vsi->eth_stats_offsets;
849
850 /* Gather up the netdev and vsi stats that the driver collects
851 * on the fly during packet processing
852 */
853 rx_b = rx_p = 0;
854 tx_b = tx_p = 0;
855 tx_restart = tx_busy = 0;
856 rx_page = 0;
857 rx_buf = 0;
980e9b11 858 rcu_read_lock();
41c445ff 859 for (q = 0; q < vsi->num_queue_pairs; q++) {
980e9b11
AD		 860 /* locate Tx ring */
861 p = ACCESS_ONCE(vsi->tx_rings[q]);
862
863 do {
57a7744e 864 start = u64_stats_fetch_begin_irq(&p->syncp);
980e9b11
AD		 865 packets = p->stats.packets;
866 bytes = p->stats.bytes;
57a7744e 867 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
980e9b11
AD		 868 tx_b += bytes;
869 tx_p += packets;
870 tx_restart += p->tx_stats.restart_queue;
871 tx_busy += p->tx_stats.tx_busy;
41c445ff 872
980e9b11
AD		 873 /* Rx queue is part of the same block as Tx queue */
874 p = &p[1];
875 do {
57a7744e 876 start = u64_stats_fetch_begin_irq(&p->syncp);
980e9b11
AD		 877 packets = p->stats.packets;
878 bytes = p->stats.bytes;
57a7744e 879 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
980e9b11
AD		 880 rx_b += bytes;
881 rx_p += packets;
420136cc
MW		 882 rx_buf += p->rx_stats.alloc_buff_failed;
883 rx_page += p->rx_stats.alloc_page_failed;
41c445ff 884 }
980e9b11 885 rcu_read_unlock();
41c445ff
JB		 886 vsi->tx_restart = tx_restart;
887 vsi->tx_busy = tx_busy;
888 vsi->rx_page_failed = rx_page;
889 vsi->rx_buf_failed = rx_buf;
890
891 ns->rx_packets = rx_p;
892 ns->rx_bytes = rx_b;
893 ns->tx_packets = tx_p;
894 ns->tx_bytes = tx_b;
895
41c445ff 896 /* update netdev stats from eth stats */
7812fddc 897 i40e_update_eth_stats(vsi);
41c445ff
JB		 898 ons->tx_errors = oes->tx_errors;
899 ns->tx_errors = es->tx_errors;
900 ons->multicast = oes->rx_multicast;
901 ns->multicast = es->rx_multicast;
41a9e55c
SN		 902 ons->rx_dropped = oes->rx_discards;
903 ns->rx_dropped = es->rx_discards;
41c445ff
JB		 904 ons->tx_dropped = oes->tx_discards;
905 ns->tx_dropped = es->tx_discards;
906
7812fddc 907 /* pull in a couple PF stats if this is the main vsi */
41c445ff 908 if (vsi == pf->vsi[pf->lan_vsi]) {
7812fddc
SN		 909 ns->rx_crc_errors = pf->stats.crc_errors;
910 ns->rx_errors = pf->stats.crc_errors + pf->stats.illegal_bytes;
911 ns->rx_length_errors = pf->stats.rx_length_errors;
912 }
913}
41c445ff 914
7812fddc 915/**
b40c82e6 916 * i40e_update_pf_stats - Update the PF statistics counters.
7812fddc
SN		 917 * @pf: the PF to be updated
918 **/
919static void i40e_update_pf_stats(struct i40e_pf *pf)
920{
921 struct i40e_hw_port_stats *osd = &pf->stats_offsets;
922 struct i40e_hw_port_stats *nsd = &pf->stats;
923 struct i40e_hw *hw = &pf->hw;
924 u32 val;
925 int i;
41c445ff 926
7812fddc
SN		 927 i40e_stat_update48(hw, I40E_GLPRT_GORCH(hw->port),
928 I40E_GLPRT_GORCL(hw->port),
929 pf->stat_offsets_loaded,
930 &osd->eth.rx_bytes, &nsd->eth.rx_bytes);
931 i40e_stat_update48(hw, I40E_GLPRT_GOTCH(hw->port),
932 I40E_GLPRT_GOTCL(hw->port),
933 pf->stat_offsets_loaded,
934 &osd->eth.tx_bytes, &nsd->eth.tx_bytes);
935 i40e_stat_update32(hw, I40E_GLPRT_RDPC(hw->port),
936 pf->stat_offsets_loaded,
937 &osd->eth.rx_discards,
938 &nsd->eth.rx_discards);
532d283d
SN		 939 i40e_stat_update48(hw, I40E_GLPRT_UPRCH(hw->port),
940 I40E_GLPRT_UPRCL(hw->port),
941 pf->stat_offsets_loaded,
942 &osd->eth.rx_unicast,
943 &nsd->eth.rx_unicast);
7812fddc
SN		 944 i40e_stat_update48(hw, I40E_GLPRT_MPRCH(hw->port),
945 I40E_GLPRT_MPRCL(hw->port),
946 pf->stat_offsets_loaded,
947 &osd->eth.rx_multicast,
948 &nsd->eth.rx_multicast);
532d283d
SN		 949 i40e_stat_update48(hw, I40E_GLPRT_BPRCH(hw->port),
950 I40E_GLPRT_BPRCL(hw->port),
951 pf->stat_offsets_loaded,
952 &osd->eth.rx_broadcast,
953 &nsd->eth.rx_broadcast);
954 i40e_stat_update48(hw, I40E_GLPRT_UPTCH(hw->port),
955 I40E_GLPRT_UPTCL(hw->port),
956 pf->stat_offsets_loaded,
957 &osd->eth.tx_unicast,
958 &nsd->eth.tx_unicast);
959 i40e_stat_update48(hw, I40E_GLPRT_MPTCH(hw->port),
960 I40E_GLPRT_MPTCL(hw->port),
961 pf->stat_offsets_loaded,
962 &osd->eth.tx_multicast,
963 &nsd->eth.tx_multicast);
964 i40e_stat_update48(hw, I40E_GLPRT_BPTCH(hw->port),
965 I40E_GLPRT_BPTCL(hw->port),
966 pf->stat_offsets_loaded,
967 &osd->eth.tx_broadcast,
968 &nsd->eth.tx_broadcast);
41c445ff 969
7812fddc
SN		 970 i40e_stat_update32(hw, I40E_GLPRT_TDOLD(hw->port),
971 pf->stat_offsets_loaded,
972 &osd->tx_dropped_link_down,
973 &nsd->tx_dropped_link_down);
41c445ff 974
7812fddc
SN		 975 i40e_stat_update32(hw, I40E_GLPRT_CRCERRS(hw->port),
976 pf->stat_offsets_loaded,
977 &osd->crc_errors, &nsd->crc_errors);
41c445ff 978
7812fddc
SN		 979 i40e_stat_update32(hw, I40E_GLPRT_ILLERRC(hw->port),
980 pf->stat_offsets_loaded,
981 &osd->illegal_bytes, &nsd->illegal_bytes);
41c445ff 982
7812fddc
SN		 983 i40e_stat_update32(hw, I40E_GLPRT_MLFC(hw->port),
984 pf->stat_offsets_loaded,
985 &osd->mac_local_faults,
986 &nsd->mac_local_faults);
987 i40e_stat_update32(hw, I40E_GLPRT_MRFC(hw->port),
988 pf->stat_offsets_loaded,
989 &osd->mac_remote_faults,
990 &nsd->mac_remote_faults);
41c445ff 991
7812fddc
SN		 992 i40e_stat_update32(hw, I40E_GLPRT_RLEC(hw->port),
993 pf->stat_offsets_loaded,
994 &osd->rx_length_errors,
995 &nsd->rx_length_errors);
41c445ff 996
7812fddc
SN		 997 i40e_stat_update32(hw, I40E_GLPRT_LXONRXC(hw->port),
998 pf->stat_offsets_loaded,
999 &osd->link_xon_rx, &nsd->link_xon_rx);
1000 i40e_stat_update32(hw, I40E_GLPRT_LXONTXC(hw->port),
1001 pf->stat_offsets_loaded,
1002 &osd->link_xon_tx, &nsd->link_xon_tx);
1003 i40e_update_prio_xoff_rx(pf); /* handles I40E_GLPRT_LXOFFRXC */
1004 i40e_stat_update32(hw, I40E_GLPRT_LXOFFTXC(hw->port),
1005 pf->stat_offsets_loaded,
1006 &osd->link_xoff_tx, &nsd->link_xoff_tx);
41c445ff 1007
7812fddc
SN		 1008 for (i = 0; i < 8; i++) {
1009 i40e_stat_update32(hw, I40E_GLPRT_PXONRXC(hw->port, i),
41c445ff 1010 pf->stat_offsets_loaded,
7812fddc
SN		 1011 &osd->priority_xon_rx[i],
1012 &nsd->priority_xon_rx[i]);
1013 i40e_stat_update32(hw, I40E_GLPRT_PXONTXC(hw->port, i),
41c445ff 1014 pf->stat_offsets_loaded,
7812fddc
SN		 1015 &osd->priority_xon_tx[i],
1016 &nsd->priority_xon_tx[i]);
1017 i40e_stat_update32(hw, I40E_GLPRT_PXOFFTXC(hw->port, i),
41c445ff 1018 pf->stat_offsets_loaded,
7812fddc
SN		 1019 &osd->priority_xoff_tx[i],
1020 &nsd->priority_xoff_tx[i]);
1021 i40e_stat_update32(hw,
1022 I40E_GLPRT_RXON2OFFCNT(hw->port, i),
bee5af7e 1023 pf->stat_offsets_loaded,
7812fddc
SN		 1024 &osd->priority_xon_2_xoff[i],
1025 &nsd->priority_xon_2_xoff[i]);
41c445ff
JB		 1026 }
1027
7812fddc
SN		 1028 i40e_stat_update48(hw, I40E_GLPRT_PRC64H(hw->port),
1029 I40E_GLPRT_PRC64L(hw->port),
1030 pf->stat_offsets_loaded,
1031 &osd->rx_size_64, &nsd->rx_size_64);
1032 i40e_stat_update48(hw, I40E_GLPRT_PRC127H(hw->port),
1033 I40E_GLPRT_PRC127L(hw->port),
1034 pf->stat_offsets_loaded,
1035 &osd->rx_size_127, &nsd->rx_size_127);
1036 i40e_stat_update48(hw, I40E_GLPRT_PRC255H(hw->port),
1037 I40E_GLPRT_PRC255L(hw->port),
1038 pf->stat_offsets_loaded,
1039 &osd->rx_size_255, &nsd->rx_size_255);
1040 i40e_stat_update48(hw, I40E_GLPRT_PRC511H(hw->port),
1041 I40E_GLPRT_PRC511L(hw->port),
1042 pf->stat_offsets_loaded,
1043 &osd->rx_size_511, &nsd->rx_size_511);
1044 i40e_stat_update48(hw, I40E_GLPRT_PRC1023H(hw->port),
1045 I40E_GLPRT_PRC1023L(hw->port),
1046 pf->stat_offsets_loaded,
1047 &osd->rx_size_1023, &nsd->rx_size_1023);
1048 i40e_stat_update48(hw, I40E_GLPRT_PRC1522H(hw->port),
1049 I40E_GLPRT_PRC1522L(hw->port),
1050 pf->stat_offsets_loaded,
1051 &osd->rx_size_1522, &nsd->rx_size_1522);
1052 i40e_stat_update48(hw, I40E_GLPRT_PRC9522H(hw->port),
1053 I40E_GLPRT_PRC9522L(hw->port),
1054 pf->stat_offsets_loaded,
1055 &osd->rx_size_big, &nsd->rx_size_big);
1056
1057 i40e_stat_update48(hw, I40E_GLPRT_PTC64H(hw->port),
1058 I40E_GLPRT_PTC64L(hw->port),
1059 pf->stat_offsets_loaded,
1060 &osd->tx_size_64, &nsd->tx_size_64);
1061 i40e_stat_update48(hw, I40E_GLPRT_PTC127H(hw->port),
1062 I40E_GLPRT_PTC127L(hw->port),
1063 pf->stat_offsets_loaded,
1064 &osd->tx_size_127, &nsd->tx_size_127);
1065 i40e_stat_update48(hw, I40E_GLPRT_PTC255H(hw->port),
1066 I40E_GLPRT_PTC255L(hw->port),
1067 pf->stat_offsets_loaded,
1068 &osd->tx_size_255, &nsd->tx_size_255);
1069 i40e_stat_update48(hw, I40E_GLPRT_PTC511H(hw->port),
1070 I40E_GLPRT_PTC511L(hw->port),
1071 pf->stat_offsets_loaded,
1072 &osd->tx_size_511, &nsd->tx_size_511);
1073 i40e_stat_update48(hw, I40E_GLPRT_PTC1023H(hw->port),
1074 I40E_GLPRT_PTC1023L(hw->port),
1075 pf->stat_offsets_loaded,
1076 &osd->tx_size_1023, &nsd->tx_size_1023);
1077 i40e_stat_update48(hw, I40E_GLPRT_PTC1522H(hw->port),
1078 I40E_GLPRT_PTC1522L(hw->port),
1079 pf->stat_offsets_loaded,
1080 &osd->tx_size_1522, &nsd->tx_size_1522);
1081 i40e_stat_update48(hw, I40E_GLPRT_PTC9522H(hw->port),
1082 I40E_GLPRT_PTC9522L(hw->port),
1083 pf->stat_offsets_loaded,
1084 &osd->tx_size_big, &nsd->tx_size_big);
1085
1086 i40e_stat_update32(hw, I40E_GLPRT_RUC(hw->port),
1087 pf->stat_offsets_loaded,
1088 &osd->rx_undersize, &nsd->rx_undersize);
1089 i40e_stat_update32(hw, I40E_GLPRT_RFC(hw->port),
1090 pf->stat_offsets_loaded,
1091 &osd->rx_fragments, &nsd->rx_fragments);
1092 i40e_stat_update32(hw, I40E_GLPRT_ROC(hw->port),
1093 pf->stat_offsets_loaded,
1094 &osd->rx_oversize, &nsd->rx_oversize);
1095 i40e_stat_update32(hw, I40E_GLPRT_RJC(hw->port),
1096 pf->stat_offsets_loaded,
1097 &osd->rx_jabber, &nsd->rx_jabber);
1098
433c47de
ASJ		 1099 /* FDIR stats */
1100 i40e_stat_update32(hw, I40E_GLQF_PCNT(pf->fd_atr_cnt_idx),
1101 pf->stat_offsets_loaded,
1102 &osd->fd_atr_match, &nsd->fd_atr_match);
1103 i40e_stat_update32(hw, I40E_GLQF_PCNT(pf->fd_sb_cnt_idx),
1104 pf->stat_offsets_loaded,
1105 &osd->fd_sb_match, &nsd->fd_sb_match);
1106
7812fddc
SN		 1107 val = rd32(hw, I40E_PRTPM_EEE_STAT);
1108 nsd->tx_lpi_status =
1109 (val & I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK) >>
1110 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT;
1111 nsd->rx_lpi_status =
1112 (val & I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK) >>
1113 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT;
1114 i40e_stat_update32(hw, I40E_PRTPM_TLPIC,
1115 pf->stat_offsets_loaded,
1116 &osd->tx_lpi_count, &nsd->tx_lpi_count);
1117 i40e_stat_update32(hw, I40E_PRTPM_RLPIC,
1118 pf->stat_offsets_loaded,
1119 &osd->rx_lpi_count, &nsd->rx_lpi_count);
1120
41c445ff
JB		 1121 pf->stat_offsets_loaded = true;
1122}
1123
7812fddc
SN		 1124/**
1125 * i40e_update_stats - Update the various statistics counters.
1126 * @vsi: the VSI to be updated
1127 *
1128 * Update the various stats for this VSI and its related entities.
1129 **/
1130void i40e_update_stats(struct i40e_vsi *vsi)
1131{
1132 struct i40e_pf *pf = vsi->back;
1133
1134 if (vsi == pf->vsi[pf->lan_vsi])
1135 i40e_update_pf_stats(pf);
1136
1137 i40e_update_vsi_stats(vsi);
38e00438
VD		 1138#ifdef I40E_FCOE
1139 i40e_update_fcoe_stats(vsi);
1140#endif
7812fddc
SN		 1141}
1142
41c445ff
JB		 1143/**
1144 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1145 * @vsi: the VSI to be searched
1146 * @macaddr: the MAC address
1147 * @vlan: the vlan
b40c82e6 1148 * @is_vf: make sure its a VF filter, else doesn't matter
41c445ff
JB		 1149 * @is_netdev: make sure its a netdev filter, else doesn't matter
1150 *
1151 * Returns ptr to the filter object or NULL
1152 **/
1153static struct i40e_mac_filter *i40e_find_filter(struct i40e_vsi *vsi,
1154 u8 *macaddr, s16 vlan,
1155 bool is_vf, bool is_netdev)
1156{
1157 struct i40e_mac_filter *f;
1158
1159 if (!vsi || !macaddr)
1160 return NULL;
1161
1162 list_for_each_entry(f, &vsi->mac_filter_list, list) {
1163 if ((ether_addr_equal(macaddr, f->macaddr)) &&
1164 (vlan == f->vlan) &&
1165 (!is_vf || f->is_vf) &&
1166 (!is_netdev || f->is_netdev))
1167 return f;
1168 }
1169 return NULL;
1170}
1171
1172/**
1173 * i40e_find_mac - Find a mac addr in the macvlan filters list
1174 * @vsi: the VSI to be searched
1175 * @macaddr: the MAC address we are searching for
b40c82e6 1176 * @is_vf: make sure its a VF filter, else doesn't matter
41c445ff
JB		 1177 * @is_netdev: make sure its a netdev filter, else doesn't matter
1178 *
1179 * Returns the first filter with the provided MAC address or NULL if
1180 * MAC address was not found
1181 **/
1182struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr,
1183 bool is_vf, bool is_netdev)
1184{
1185 struct i40e_mac_filter *f;
1186
1187 if (!vsi || !macaddr)
1188 return NULL;
1189
1190 list_for_each_entry(f, &vsi->mac_filter_list, list) {
1191 if ((ether_addr_equal(macaddr, f->macaddr)) &&
1192 (!is_vf || f->is_vf) &&
1193 (!is_netdev || f->is_netdev))
1194 return f;
1195 }
1196 return NULL;
1197}
1198
1199/**
1200 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1201 * @vsi: the VSI to be searched
1202 *
1203 * Returns true if VSI is in vlan mode or false otherwise
1204 **/
1205bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi)
1206{
1207 struct i40e_mac_filter *f;
1208
1209 /* Only -1 for all the filters denotes not in vlan mode
1210 * so we have to go through all the list in order to make sure
1211 */
1212 list_for_each_entry(f, &vsi->mac_filter_list, list) {
1213 if (f->vlan >= 0)
1214 return true;
1215 }
1216
1217 return false;
1218}
1219
1220/**
1221 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1222 * @vsi: the VSI to be searched
1223 * @macaddr: the mac address to be filtered
b40c82e6 1224 * @is_vf: true if it is a VF
41c445ff
JB		 1225 * @is_netdev: true if it is a netdev
1226 *
1227 * Goes through all the macvlan filters and adds a
1228 * macvlan filter for each unique vlan that already exists
1229 *
1230 * Returns first filter found on success, else NULL
1231 **/
1232struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr,
1233 bool is_vf, bool is_netdev)
1234{
1235 struct i40e_mac_filter *f;
1236
1237 list_for_each_entry(f, &vsi->mac_filter_list, list) {
1238 if (!i40e_find_filter(vsi, macaddr, f->vlan,
1239 is_vf, is_netdev)) {
1240 if (!i40e_add_filter(vsi, macaddr, f->vlan,
8fb905b3 1241 is_vf, is_netdev))
41c445ff
JB		 1242 return NULL;
1243 }
1244 }
1245
1246 return list_first_entry_or_null(&vsi->mac_filter_list,
1247 struct i40e_mac_filter, list);
1248}
1249
8c27d42e
GR		 1250/**
1251 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1252 * @vsi: the PF Main VSI - inappropriate for any other VSI
1253 * @macaddr: the MAC address
30650cc5
SN		 1254 *
1255 * Some older firmware configurations set up a default promiscuous VLAN
1256 * filter that needs to be removed.
8c27d42e 1257 **/
30650cc5 1258static int i40e_rm_default_mac_filter(struct i40e_vsi *vsi, u8 *macaddr)
8c27d42e
GR		 1259{
1260 struct i40e_aqc_remove_macvlan_element_data element;
1261 struct i40e_pf *pf = vsi->back;
1262 i40e_status aq_ret;
1263
1264 /* Only appropriate for the PF main VSI */
1265 if (vsi->type != I40E_VSI_MAIN)
30650cc5 1266 return -EINVAL;
8c27d42e 1267
30650cc5 1268 memset(&element, 0, sizeof(element));
8c27d42e
GR		 1269 ether_addr_copy(element.mac_addr, macaddr);
1270 element.vlan_tag = 0;
1271 element.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH |
1272 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN;
1273 aq_ret = i40e_aq_remove_macvlan(&pf->hw, vsi->seid, &element, 1, NULL);
1274 if (aq_ret)
30650cc5
SN		 1275 return -ENOENT;
1276
1277 return 0;
8c27d42e
GR		 1278}
1279
41c445ff
JB		 1280/**
1281 * i40e_add_filter - Add a mac/vlan filter to the VSI
1282 * @vsi: the VSI to be searched
1283 * @macaddr: the MAC address
1284 * @vlan: the vlan
b40c82e6 1285 * @is_vf: make sure its a VF filter, else doesn't matter
41c445ff
JB		 1286 * @is_netdev: make sure its a netdev filter, else doesn't matter
1287 *
1288 * Returns ptr to the filter object or NULL when no memory available.
1289 **/
1290struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
1291 u8 *macaddr, s16 vlan,
1292 bool is_vf, bool is_netdev)
1293{
1294 struct i40e_mac_filter *f;
1295
1296 if (!vsi || !macaddr)
1297 return NULL;
1298
1299 f = i40e_find_filter(vsi, macaddr, vlan, is_vf, is_netdev);
1300 if (!f) {
1301 f = kzalloc(sizeof(*f), GFP_ATOMIC);
1302 if (!f)
1303 goto add_filter_out;
1304
9a173901 1305 ether_addr_copy(f->macaddr, macaddr);
41c445ff
JB		 1306 f->vlan = vlan;
1307 f->changed = true;
1308
1309 INIT_LIST_HEAD(&f->list);
1310 list_add(&f->list, &vsi->mac_filter_list);
1311 }
1312
1313 /* increment counter and add a new flag if needed */
1314 if (is_vf) {
1315 if (!f->is_vf) {
1316 f->is_vf = true;
1317 f->counter++;
1318 }
1319 } else if (is_netdev) {
1320 if (!f->is_netdev) {
1321 f->is_netdev = true;
1322 f->counter++;
1323 }
1324 } else {
1325 f->counter++;
1326 }
1327
1328 /* changed tells sync_filters_subtask to
1329 * push the filter down to the firmware
1330 */
1331 if (f->changed) {
1332 vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED;
1333 vsi->back->flags |= I40E_FLAG_FILTER_SYNC;
1334 }
1335
1336add_filter_out:
1337 return f;
1338}
1339
1340/**
1341 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1342 * @vsi: the VSI to be searched
1343 * @macaddr: the MAC address
1344 * @vlan: the vlan
b40c82e6 1345 * @is_vf: make sure it's a VF filter, else doesn't matter
41c445ff
JB		 1346 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1347 **/
1348void i40e_del_filter(struct i40e_vsi *vsi,
1349 u8 *macaddr, s16 vlan,
1350 bool is_vf, bool is_netdev)
1351{
1352 struct i40e_mac_filter *f;
1353
1354 if (!vsi || !macaddr)
1355 return;
1356
1357 f = i40e_find_filter(vsi, macaddr, vlan, is_vf, is_netdev);
1358 if (!f || f->counter == 0)
1359 return;
1360
1361 if (is_vf) {
1362 if (f->is_vf) {
1363 f->is_vf = false;
1364 f->counter--;
1365 }
1366 } else if (is_netdev) {
1367 if (f->is_netdev) {
1368 f->is_netdev = false;
1369 f->counter--;
1370 }
1371 } else {
b40c82e6 1372 /* make sure we don't remove a filter in use by VF or netdev */
41c445ff
JB		 1373 int min_f = 0;
1374 min_f += (f->is_vf ? 1 : 0);
1375 min_f += (f->is_netdev ? 1 : 0);
1376
1377 if (f->counter > min_f)
1378 f->counter--;
1379 }
1380
1381 /* counter == 0 tells sync_filters_subtask to
1382 * remove the filter from the firmware's list
1383 */
1384 if (f->counter == 0) {
1385 f->changed = true;
1386 vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED;
1387 vsi->back->flags |= I40E_FLAG_FILTER_SYNC;
1388 }
1389}
1390
1391/**
1392 * i40e_set_mac - NDO callback to set mac address
1393 * @netdev: network interface device structure
1394 * @p: pointer to an address structure
1395 *
1396 * Returns 0 on success, negative on failure
1397 **/
38e00438
VD		 1398#ifdef I40E_FCOE
1399int i40e_set_mac(struct net_device *netdev, void *p)
1400#else
41c445ff 1401static int i40e_set_mac(struct net_device *netdev, void *p)
38e00438 1402#endif
41c445ff
JB		 1403{
1404 struct i40e_netdev_priv *np = netdev_priv(netdev);
1405 struct i40e_vsi *vsi = np->vsi;
30650cc5
SN		 1406 struct i40e_pf *pf = vsi->back;
1407 struct i40e_hw *hw = &pf->hw;
41c445ff
JB		 1408 struct sockaddr *addr = p;
1409 struct i40e_mac_filter *f;
1410
1411 if (!is_valid_ether_addr(addr->sa_data))
1412 return -EADDRNOTAVAIL;
1413
30650cc5
SN		 1414 if (ether_addr_equal(netdev->dev_addr, addr->sa_data)) {
1415 netdev_info(netdev, "already using mac address %pM\n",
1416 addr->sa_data);
1417 return 0;
1418 }
41c445ff 1419
80f6428f
ASJ		 1420 if (test_bit(__I40E_DOWN, &vsi->back->state) ||
1421 test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state))
1422 return -EADDRNOTAVAIL;
1423
30650cc5
SN		 1424 if (ether_addr_equal(hw->mac.addr, addr->sa_data))
1425 netdev_info(netdev, "returning to hw mac address %pM\n",
1426 hw->mac.addr);
1427 else
1428 netdev_info(netdev, "set new mac address %pM\n", addr->sa_data);
1429
41c445ff
JB		 1430 if (vsi->type == I40E_VSI_MAIN) {
1431 i40e_status ret;
1432 ret = i40e_aq_mac_address_write(&vsi->back->hw,
cc41222c 1433 I40E_AQC_WRITE_TYPE_LAA_WOL,
41c445ff
JB		 1434 addr->sa_data, NULL);
1435 if (ret) {
1436 netdev_info(netdev,
1437 "Addr change for Main VSI failed: %d\n",
1438 ret);
1439 return -EADDRNOTAVAIL;
1440 }
41c445ff
JB		 1441 }
1442
30650cc5
SN		 1443 if (ether_addr_equal(netdev->dev_addr, hw->mac.addr)) {
1444 struct i40e_aqc_remove_macvlan_element_data element;
6c8ad1ba 1445
30650cc5
SN		 1446 memset(&element, 0, sizeof(element));
1447 ether_addr_copy(element.mac_addr, netdev->dev_addr);
1448 element.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH;
1449 i40e_aq_remove_macvlan(&pf->hw, vsi->seid, &element, 1, NULL);
1450 } else {
6c8ad1ba
SN		 1451 i40e_del_filter(vsi, netdev->dev_addr, I40E_VLAN_ANY,
1452 false, false);
6c8ad1ba 1453 }
41c445ff 1454
30650cc5
SN		 1455 if (ether_addr_equal(addr->sa_data, hw->mac.addr)) {
1456 struct i40e_aqc_add_macvlan_element_data element;
1457
1458 memset(&element, 0, sizeof(element));
1459 ether_addr_copy(element.mac_addr, hw->mac.addr);
1460 element.flags = cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH);
1461 i40e_aq_add_macvlan(&pf->hw, vsi->seid, &element, 1, NULL);
1462 } else {
1463 f = i40e_add_filter(vsi, addr->sa_data, I40E_VLAN_ANY,
1464 false, false);
1465 if (f)
1466 f->is_laa = true;
1467 }
1468
1469 i40e_sync_vsi_filters(vsi);
1470 ether_addr_copy(netdev->dev_addr, addr->sa_data);
41c445ff
JB		 1471
1472 return 0;
1473}
1474
1475/**
1476 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1477 * @vsi: the VSI being setup
1478 * @ctxt: VSI context structure
1479 * @enabled_tc: Enabled TCs bitmap
1480 * @is_add: True if called before Add VSI
1481 *
1482 * Setup VSI queue mapping for enabled traffic classes.
1483 **/
38e00438
VD		 1484#ifdef I40E_FCOE
1485void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
1486 struct i40e_vsi_context *ctxt,
1487 u8 enabled_tc,
1488 bool is_add)
1489#else
41c445ff
JB		 1490static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
1491 struct i40e_vsi_context *ctxt,
1492 u8 enabled_tc,
1493 bool is_add)
38e00438 1494#endif
41c445ff
JB		 1495{
1496 struct i40e_pf *pf = vsi->back;
1497 u16 sections = 0;
1498 u8 netdev_tc = 0;
1499 u16 numtc = 0;
1500 u16 qcount;
1501 u8 offset;
1502 u16 qmap;
1503 int i;
4e3b35b0 1504 u16 num_tc_qps = 0;
41c445ff
JB		 1505
1506 sections = I40E_AQ_VSI_PROP_QUEUE_MAP_VALID;
1507 offset = 0;
1508
1509 if (enabled_tc && (vsi->back->flags & I40E_FLAG_DCB_ENABLED)) {
1510 /* Find numtc from enabled TC bitmap */
1511 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1512 if (enabled_tc & (1 << i)) /* TC is enabled */
1513 numtc++;
1514 }
1515 if (!numtc) {
1516 dev_warn(&pf->pdev->dev, "DCB is enabled but no TC enabled, forcing TC0\n");
1517 numtc = 1;
1518 }
1519 } else {
1520 /* At least TC0 is enabled in case of non-DCB case */
1521 numtc = 1;
1522 }
1523
1524 vsi->tc_config.numtc = numtc;
1525 vsi->tc_config.enabled_tc = enabled_tc ? enabled_tc : 1;
4e3b35b0 1526 /* Number of queues per enabled TC */
7f9ff476
AS		 1527 /* In MFP case we can have a much lower count of MSIx
1528 * vectors available and so we need to lower the used
1529 * q count.
1530 */
1531 qcount = min_t(int, vsi->alloc_queue_pairs, pf->num_lan_msix);
1532 num_tc_qps = qcount / numtc;
4e3b35b0 1533 num_tc_qps = min_t(int, num_tc_qps, I40E_MAX_QUEUES_PER_TC);
41c445ff
JB		 1534
1535 /* Setup queue offset/count for all TCs for given VSI */
1536 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1537 /* See if the given TC is enabled for the given VSI */
1538 if (vsi->tc_config.enabled_tc & (1 << i)) { /* TC is enabled */
1539 int pow, num_qps;
1540
41c445ff
JB		 1541 switch (vsi->type) {
1542 case I40E_VSI_MAIN:
4e3b35b0 1543 qcount = min_t(int, pf->rss_size, num_tc_qps);
41c445ff 1544 break;
38e00438
VD		 1545#ifdef I40E_FCOE
1546 case I40E_VSI_FCOE:
1547 qcount = num_tc_qps;
1548 break;
1549#endif
41c445ff
JB		 1550 case I40E_VSI_FDIR:
1551 case I40E_VSI_SRIOV:
1552 case I40E_VSI_VMDQ2:
1553 default:
4e3b35b0 1554 qcount = num_tc_qps;
41c445ff
JB		 1555 WARN_ON(i != 0);
1556 break;
1557 }
4e3b35b0
NP		 1558 vsi->tc_config.tc_info[i].qoffset = offset;
1559 vsi->tc_config.tc_info[i].qcount = qcount;
41c445ff 1560
1e200e4a 1561 /* find the next higher power-of-2 of num queue pairs */
4e3b35b0 1562 num_qps = qcount;
41c445ff 1563 pow = 0;
4e3b35b0 1564 while (num_qps && ((1 << pow) < qcount)) {
41c445ff
JB		 1565 pow++;
1566 num_qps >>= 1;
1567 }
1568
1569 vsi->tc_config.tc_info[i].netdev_tc = netdev_tc++;
1570 qmap =
1571 (offset << I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT) |
1572 (pow << I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT);
1573
4e3b35b0 1574 offset += qcount;
41c445ff
JB		 1575 } else {
1576 /* TC is not enabled so set the offset to
1577 * default queue and allocate one queue
1578 * for the given TC.
1579 */
1580 vsi->tc_config.tc_info[i].qoffset = 0;
1581 vsi->tc_config.tc_info[i].qcount = 1;
1582 vsi->tc_config.tc_info[i].netdev_tc = 0;
1583
1584 qmap = 0;
1585 }
1586 ctxt->info.tc_mapping[i] = cpu_to_le16(qmap);
1587 }
1588
1589 /* Set actual Tx/Rx queue pairs */
1590 vsi->num_queue_pairs = offset;
9a3bd2f1
ASJ		 1591 if ((vsi->type == I40E_VSI_MAIN) && (numtc == 1)) {
1592 if (vsi->req_queue_pairs > 0)
1593 vsi->num_queue_pairs = vsi->req_queue_pairs;
1594 else
1595 vsi->num_queue_pairs = pf->num_lan_msix;
1596 }
41c445ff
JB		 1597
1598 /* Scheduler section valid can only be set for ADD VSI */
1599 if (is_add) {
1600 sections |= I40E_AQ_VSI_PROP_SCHED_VALID;
1601
1602 ctxt->info.up_enable_bits = enabled_tc;
1603 }
1604 if (vsi->type == I40E_VSI_SRIOV) {
1605 ctxt->info.mapping_flags |=
1606 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG);
1607 for (i = 0; i < vsi->num_queue_pairs; i++)
1608 ctxt->info.queue_mapping[i] =
1609 cpu_to_le16(vsi->base_queue + i);
1610 } else {
1611 ctxt->info.mapping_flags |=
1612 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG);
1613 ctxt->info.queue_mapping[0] = cpu_to_le16(vsi->base_queue);
1614 }
1615 ctxt->info.valid_sections |= cpu_to_le16(sections);
1616}
1617
1618/**
1619 * i40e_set_rx_mode - NDO callback to set the netdev filters
1620 * @netdev: network interface device structure
1621 **/
38e00438
VD		 1622#ifdef I40E_FCOE
1623void i40e_set_rx_mode(struct net_device *netdev)
1624#else
41c445ff 1625static void i40e_set_rx_mode(struct net_device *netdev)
38e00438 1626#endif
41c445ff
JB		 1627{
1628 struct i40e_netdev_priv *np = netdev_priv(netdev);
1629 struct i40e_mac_filter *f, *ftmp;
1630 struct i40e_vsi *vsi = np->vsi;
1631 struct netdev_hw_addr *uca;
1632 struct netdev_hw_addr *mca;
1633 struct netdev_hw_addr *ha;
1634
1635 /* add addr if not already in the filter list */
1636 netdev_for_each_uc_addr(uca, netdev) {
1637 if (!i40e_find_mac(vsi, uca->addr, false, true)) {
1638 if (i40e_is_vsi_in_vlan(vsi))
1639 i40e_put_mac_in_vlan(vsi, uca->addr,
1640 false, true);
1641 else
1642 i40e_add_filter(vsi, uca->addr, I40E_VLAN_ANY,
1643 false, true);
1644 }
1645 }
1646
1647 netdev_for_each_mc_addr(mca, netdev) {
1648 if (!i40e_find_mac(vsi, mca->addr, false, true)) {
1649 if (i40e_is_vsi_in_vlan(vsi))
1650 i40e_put_mac_in_vlan(vsi, mca->addr,
1651 false, true);
1652 else
1653 i40e_add_filter(vsi, mca->addr, I40E_VLAN_ANY,
1654 false, true);
1655 }
1656 }
1657
1658 /* remove filter if not in netdev list */
1659 list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) {
1660 bool found = false;
1661
1662 if (!f->is_netdev)
1663 continue;
1664
1665 if (is_multicast_ether_addr(f->macaddr)) {
1666 netdev_for_each_mc_addr(mca, netdev) {
1667 if (ether_addr_equal(mca->addr, f->macaddr)) {
1668 found = true;
1669 break;
1670 }
1671 }
1672 } else {
1673 netdev_for_each_uc_addr(uca, netdev) {
1674 if (ether_addr_equal(uca->addr, f->macaddr)) {
1675 found = true;
1676 break;
1677 }
1678 }
1679
1680 for_each_dev_addr(netdev, ha) {
1681 if (ether_addr_equal(ha->addr, f->macaddr)) {
1682 found = true;
1683 break;
1684 }
1685 }
1686 }
1687 if (!found)
1688 i40e_del_filter(
1689 vsi, f->macaddr, I40E_VLAN_ANY, false, true);
1690 }
1691
1692 /* check for other flag changes */
1693 if (vsi->current_netdev_flags != vsi->netdev->flags) {
1694 vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED;
1695 vsi->back->flags |= I40E_FLAG_FILTER_SYNC;
1696 }
1697}
1698
1699/**
1700 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1701 * @vsi: ptr to the VSI
1702 *
1703 * Push any outstanding VSI filter changes through the AdminQ.
1704 *
1705 * Returns 0 or error value
1706 **/
1707int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
1708{
1709 struct i40e_mac_filter *f, *ftmp;
1710 bool promisc_forced_on = false;
1711 bool add_happened = false;
1712 int filter_list_len = 0;
1713 u32 changed_flags = 0;
dcae29be 1714 i40e_status aq_ret = 0;
41c445ff
JB		 1715 struct i40e_pf *pf;
1716 int num_add = 0;
1717 int num_del = 0;
1718 u16 cmd_flags;
1719
1720 /* empty array typed pointers, kcalloc later */
1721 struct i40e_aqc_add_macvlan_element_data *add_list;
1722 struct i40e_aqc_remove_macvlan_element_data *del_list;
1723
1724 while (test_and_set_bit(__I40E_CONFIG_BUSY, &vsi->state))
1725 usleep_range(1000, 2000);
1726 pf = vsi->back;
1727
1728 if (vsi->netdev) {
1729 changed_flags = vsi->current_netdev_flags ^ vsi->netdev->flags;
1730 vsi->current_netdev_flags = vsi->netdev->flags;
1731 }
1732
1733 if (vsi->flags & I40E_VSI_FLAG_FILTER_CHANGED) {
1734 vsi->flags &= ~I40E_VSI_FLAG_FILTER_CHANGED;
1735
1736 filter_list_len = pf->hw.aq.asq_buf_size /
1737 sizeof(struct i40e_aqc_remove_macvlan_element_data);
1738 del_list = kcalloc(filter_list_len,
1739 sizeof(struct i40e_aqc_remove_macvlan_element_data),
1740 GFP_KERNEL);
1741 if (!del_list)
1742 return -ENOMEM;
1743
1744 list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) {
1745 if (!f->changed)
1746 continue;
1747
1748 if (f->counter != 0)
1749 continue;
1750 f->changed = false;
1751 cmd_flags = 0;
1752
1753 /* add to delete list */
9a173901 1754 ether_addr_copy(del_list[num_del].mac_addr, f->macaddr);
41c445ff
JB		 1755 del_list[num_del].vlan_tag =
1756 cpu_to_le16((u16)(f->vlan ==
1757 I40E_VLAN_ANY ? 0 : f->vlan));
1758
41c445ff
JB		 1759 cmd_flags |= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH;
1760 del_list[num_del].flags = cmd_flags;
1761 num_del++;
1762
1763 /* unlink from filter list */
1764 list_del(&f->list);
1765 kfree(f);
1766
1767 /* flush a full buffer */
1768 if (num_del == filter_list_len) {
dcae29be 1769 aq_ret = i40e_aq_remove_macvlan(&pf->hw,
41c445ff
JB		 1770 vsi->seid, del_list, num_del,
1771 NULL);
1772 num_del = 0;
1773 memset(del_list, 0, sizeof(*del_list));
1774
fdfe9cbe
SN		 1775 if (aq_ret &&
1776 pf->hw.aq.asq_last_status !=
1777 I40E_AQ_RC_ENOENT)
41c445ff
JB		 1778 dev_info(&pf->pdev->dev,
1779 "ignoring delete macvlan error, err %d, aq_err %d while flushing a full buffer\n",
dcae29be 1780 aq_ret,
41c445ff
JB		 1781 pf->hw.aq.asq_last_status);
1782 }
1783 }
1784 if (num_del) {
dcae29be 1785 aq_ret = i40e_aq_remove_macvlan(&pf->hw, vsi->seid,
41c445ff
JB		 1786 del_list, num_del, NULL);
1787 num_del = 0;
1788
fdfe9cbe
SN		 1789 if (aq_ret &&
1790 pf->hw.aq.asq_last_status != I40E_AQ_RC_ENOENT)
41c445ff
JB		 1791 dev_info(&pf->pdev->dev,
1792 "ignoring delete macvlan error, err %d, aq_err %d\n",
dcae29be 1793 aq_ret, pf->hw.aq.asq_last_status);
41c445ff
JB		 1794 }
1795
1796 kfree(del_list);
1797 del_list = NULL;
1798
1799 /* do all the adds now */
1800 filter_list_len = pf->hw.aq.asq_buf_size /
1801 sizeof(struct i40e_aqc_add_macvlan_element_data),
1802 add_list = kcalloc(filter_list_len,
1803 sizeof(struct i40e_aqc_add_macvlan_element_data),
1804 GFP_KERNEL);
1805 if (!add_list)
1806 return -ENOMEM;
1807
1808 list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) {
1809 if (!f->changed)
1810 continue;
1811
1812 if (f->counter == 0)
1813 continue;
1814 f->changed = false;
1815 add_happened = true;
1816 cmd_flags = 0;
1817
1818 /* add to add array */
9a173901 1819 ether_addr_copy(add_list[num_add].mac_addr, f->macaddr);
41c445ff
JB		 1820 add_list[num_add].vlan_tag =
1821 cpu_to_le16(
1822 (u16)(f->vlan == I40E_VLAN_ANY ? 0 : f->vlan));
1823 add_list[num_add].queue_number = 0;
1824
1825 cmd_flags |= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH;
41c445ff
JB		 1826 add_list[num_add].flags = cpu_to_le16(cmd_flags);
1827 num_add++;
1828
1829 /* flush a full buffer */
1830 if (num_add == filter_list_len) {
dcae29be
JB		 1831 aq_ret = i40e_aq_add_macvlan(&pf->hw, vsi->seid,
1832 add_list, num_add,
1833 NULL);
41c445ff
JB		 1834 num_add = 0;
1835
dcae29be 1836 if (aq_ret)
41c445ff
JB		 1837 break;
1838 memset(add_list, 0, sizeof(*add_list));
1839 }
1840 }
1841 if (num_add) {
dcae29be
JB		 1842 aq_ret = i40e_aq_add_macvlan(&pf->hw, vsi->seid,
1843 add_list, num_add, NULL);
41c445ff
JB		 1844 num_add = 0;
1845 }
1846 kfree(add_list);
1847 add_list = NULL;
1848
30650cc5
SN		 1849 if (add_happened && aq_ret &&
1850 pf->hw.aq.asq_last_status != I40E_AQ_RC_EINVAL) {
41c445ff
JB		 1851 dev_info(&pf->pdev->dev,
1852 "add filter failed, err %d, aq_err %d\n",
dcae29be 1853 aq_ret, pf->hw.aq.asq_last_status);
41c445ff
JB		 1854 if ((pf->hw.aq.asq_last_status == I40E_AQ_RC_ENOSPC) &&
1855 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC,
1856 &vsi->state)) {
1857 promisc_forced_on = true;
1858 set_bit(__I40E_FILTER_OVERFLOW_PROMISC,
1859 &vsi->state);
1860 dev_info(&pf->pdev->dev, "promiscuous mode forced on\n");
1861 }
1862 }
1863 }
1864
1865 /* check for changes in promiscuous modes */
1866 if (changed_flags & IFF_ALLMULTI) {
1867 bool cur_multipromisc;
1868 cur_multipromisc = !!(vsi->current_netdev_flags & IFF_ALLMULTI);
dcae29be
JB		 1869 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(&vsi->back->hw,
1870 vsi->seid,
1871 cur_multipromisc,
1872 NULL);
1873 if (aq_ret)
41c445ff
JB		 1874 dev_info(&pf->pdev->dev,
1875 "set multi promisc failed, err %d, aq_err %d\n",
dcae29be 1876 aq_ret, pf->hw.aq.asq_last_status);
41c445ff
JB		 1877 }
1878 if ((changed_flags & IFF_PROMISC) || promisc_forced_on) {
1879 bool cur_promisc;
1880 cur_promisc = (!!(vsi->current_netdev_flags & IFF_PROMISC) ||
1881 test_bit(__I40E_FILTER_OVERFLOW_PROMISC,
1882 &vsi->state));
dcae29be
JB		 1883 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(&vsi->back->hw,
1884 vsi->seid,
1885 cur_promisc, NULL);
1886 if (aq_ret)
41c445ff
JB		 1887 dev_info(&pf->pdev->dev,
1888 "set uni promisc failed, err %d, aq_err %d\n",
dcae29be 1889 aq_ret, pf->hw.aq.asq_last_status);
1a10370a
GR		 1890 aq_ret = i40e_aq_set_vsi_broadcast(&vsi->back->hw,
1891 vsi->seid,
1892 cur_promisc, NULL);
1893 if (aq_ret)
1894 dev_info(&pf->pdev->dev,
1895 "set brdcast promisc failed, err %d, aq_err %d\n",
1896 aq_ret, pf->hw.aq.asq_last_status);
41c445ff
JB		 1897 }
1898
1899 clear_bit(__I40E_CONFIG_BUSY, &vsi->state);
1900 return 0;
1901}
1902
1903/**
1904 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
1905 * @pf: board private structure
1906 **/
1907static void i40e_sync_filters_subtask(struct i40e_pf *pf)
1908{
1909 int v;
1910
1911 if (!pf || !(pf->flags & I40E_FLAG_FILTER_SYNC))
1912 return;
1913 pf->flags &= ~I40E_FLAG_FILTER_SYNC;
1914
505682cd 1915 for (v = 0; v < pf->num_alloc_vsi; v++) {
41c445ff
JB		 1916 if (pf->vsi[v] &&
1917 (pf->vsi[v]->flags & I40E_VSI_FLAG_FILTER_CHANGED))
1918 i40e_sync_vsi_filters(pf->vsi[v]);
1919 }
1920}
1921
1922/**
1923 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
1924 * @netdev: network interface device structure
1925 * @new_mtu: new value for maximum frame size
1926 *
1927 * Returns 0 on success, negative on failure
1928 **/
1929static int i40e_change_mtu(struct net_device *netdev, int new_mtu)
1930{
1931 struct i40e_netdev_priv *np = netdev_priv(netdev);
61a46a4c 1932 int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
41c445ff
JB		 1933 struct i40e_vsi *vsi = np->vsi;
1934
1935 /* MTU < 68 is an error and causes problems on some kernels */
1936 if ((new_mtu < 68) || (max_frame > I40E_MAX_RXBUFFER))
1937 return -EINVAL;
1938
1939 netdev_info(netdev, "changing MTU from %d to %d\n",
1940 netdev->mtu, new_mtu);
1941 netdev->mtu = new_mtu;
1942 if (netif_running(netdev))
1943 i40e_vsi_reinit_locked(vsi);
1944
1945 return 0;
1946}
1947
beb0dff1
JK		 1948/**
1949 * i40e_ioctl - Access the hwtstamp interface
1950 * @netdev: network interface device structure
1951 * @ifr: interface request data
1952 * @cmd: ioctl command
1953 **/
1954int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
1955{
1956 struct i40e_netdev_priv *np = netdev_priv(netdev);
1957 struct i40e_pf *pf = np->vsi->back;
1958
1959 switch (cmd) {
1960 case SIOCGHWTSTAMP:
1961 return i40e_ptp_get_ts_config(pf, ifr);
1962 case SIOCSHWTSTAMP:
1963 return i40e_ptp_set_ts_config(pf, ifr);
1964 default:
1965 return -EOPNOTSUPP;
1966 }
1967}
1968
41c445ff
JB		 1969/**
1970 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
1971 * @vsi: the vsi being adjusted
1972 **/
1973void i40e_vlan_stripping_enable(struct i40e_vsi *vsi)
1974{
1975 struct i40e_vsi_context ctxt;
1976 i40e_status ret;
1977
1978 if ((vsi->info.valid_sections &
1979 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) &&
1980 ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_MODE_MASK) == 0))
1981 return; /* already enabled */
1982
1983 vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID);
1984 vsi->info.port_vlan_flags = I40E_AQ_VSI_PVLAN_MODE_ALL |
1985 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH;
1986
1987 ctxt.seid = vsi->seid;
1a2f6248 1988 ctxt.info = vsi->info;
41c445ff
JB		 1989 ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
1990 if (ret) {
1991 dev_info(&vsi->back->pdev->dev,
1992 "%s: update vsi failed, aq_err=%d\n",
1993 __func__, vsi->back->hw.aq.asq_last_status);
1994 }
1995}
1996
1997/**
1998 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
1999 * @vsi: the vsi being adjusted
2000 **/
2001void i40e_vlan_stripping_disable(struct i40e_vsi *vsi)
2002{
2003 struct i40e_vsi_context ctxt;
2004 i40e_status ret;
2005
2006 if ((vsi->info.valid_sections &
2007 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) &&
2008 ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_EMOD_MASK) ==
2009 I40E_AQ_VSI_PVLAN_EMOD_MASK))
2010 return; /* already disabled */
2011
2012 vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID);
2013 vsi->info.port_vlan_flags = I40E_AQ_VSI_PVLAN_MODE_ALL |
2014 I40E_AQ_VSI_PVLAN_EMOD_NOTHING;
2015
2016 ctxt.seid = vsi->seid;
1a2f6248 2017 ctxt.info = vsi->info;
41c445ff
JB		 2018 ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
2019 if (ret) {
2020 dev_info(&vsi->back->pdev->dev,
2021 "%s: update vsi failed, aq_err=%d\n",
2022 __func__, vsi->back->hw.aq.asq_last_status);
2023 }
2024}
2025
2026/**
2027 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2028 * @netdev: network interface to be adjusted
2029 * @features: netdev features to test if VLAN offload is enabled or not
2030 **/
2031static void i40e_vlan_rx_register(struct net_device *netdev, u32 features)
2032{
2033 struct i40e_netdev_priv *np = netdev_priv(netdev);
2034 struct i40e_vsi *vsi = np->vsi;
2035
2036 if (features & NETIF_F_HW_VLAN_CTAG_RX)
2037 i40e_vlan_stripping_enable(vsi);
2038 else
2039 i40e_vlan_stripping_disable(vsi);
2040}
2041
2042/**
2043 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2044 * @vsi: the vsi being configured
2045 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2046 **/
2047int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid)
2048{
2049 struct i40e_mac_filter *f, *add_f;
2050 bool is_netdev, is_vf;
41c445ff
JB		 2051
2052 is_vf = (vsi->type == I40E_VSI_SRIOV);
2053 is_netdev = !!(vsi->netdev);
2054
2055 if (is_netdev) {
2056 add_f = i40e_add_filter(vsi, vsi->netdev->dev_addr, vid,
2057 is_vf, is_netdev);
2058 if (!add_f) {
2059 dev_info(&vsi->back->pdev->dev,
2060 "Could not add vlan filter %d for %pM\n",
2061 vid, vsi->netdev->dev_addr);
2062 return -ENOMEM;
2063 }
2064 }
2065
2066 list_for_each_entry(f, &vsi->mac_filter_list, list) {
2067 add_f = i40e_add_filter(vsi, f->macaddr, vid, is_vf, is_netdev);
2068 if (!add_f) {
2069 dev_info(&vsi->back->pdev->dev,
2070 "Could not add vlan filter %d for %pM\n",
2071 vid, f->macaddr);
2072 return -ENOMEM;
2073 }
2074 }
2075
41c445ff
JB		 2076 /* Now if we add a vlan tag, make sure to check if it is the first
2077 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2078 * with 0, so we now accept untagged and specified tagged traffic
2079 * (and not any taged and untagged)
2080 */
2081 if (vid > 0) {
2082 if (is_netdev && i40e_find_filter(vsi, vsi->netdev->dev_addr,
2083 I40E_VLAN_ANY,
2084 is_vf, is_netdev)) {
2085 i40e_del_filter(vsi, vsi->netdev->dev_addr,
2086 I40E_VLAN_ANY, is_vf, is_netdev);
2087 add_f = i40e_add_filter(vsi, vsi->netdev->dev_addr, 0,
2088 is_vf, is_netdev);
2089 if (!add_f) {
2090 dev_info(&vsi->back->pdev->dev,
2091 "Could not add filter 0 for %pM\n",
2092 vsi->netdev->dev_addr);
2093 return -ENOMEM;
2094 }
2095 }
8d82a7c5 2096 }
41c445ff 2097
8d82a7c5
GR		 2098 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2099 if (vid > 0 && !vsi->info.pvid) {
41c445ff
JB		 2100 list_for_each_entry(f, &vsi->mac_filter_list, list) {
2101 if (i40e_find_filter(vsi, f->macaddr, I40E_VLAN_ANY,
2102 is_vf, is_netdev)) {
2103 i40e_del_filter(vsi, f->macaddr, I40E_VLAN_ANY,
2104 is_vf, is_netdev);
2105 add_f = i40e_add_filter(vsi, f->macaddr,
2106 0, is_vf, is_netdev);
2107 if (!add_f) {
2108 dev_info(&vsi->back->pdev->dev,
2109 "Could not add filter 0 for %pM\n",
2110 f->macaddr);
2111 return -ENOMEM;
2112 }
2113 }
2114 }
41c445ff
JB		 2115 }
2116
80f6428f
ASJ		 2117 if (test_bit(__I40E_DOWN, &vsi->back->state) ||
2118 test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state))
2119 return 0;
2120
2121 return i40e_sync_vsi_filters(vsi);
41c445ff
JB		 2122}
2123
2124/**
2125 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2126 * @vsi: the vsi being configured
2127 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
078b5876
JB		 2128 *
2129 * Return: 0 on success or negative otherwise
41c445ff
JB		 2130 **/
2131int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid)
2132{
2133 struct net_device *netdev = vsi->netdev;
2134 struct i40e_mac_filter *f, *add_f;
2135 bool is_vf, is_netdev;
2136 int filter_count = 0;
41c445ff
JB		 2137
2138 is_vf = (vsi->type == I40E_VSI_SRIOV);
2139 is_netdev = !!(netdev);
2140
2141 if (is_netdev)
2142 i40e_del_filter(vsi, netdev->dev_addr, vid, is_vf, is_netdev);
2143
2144 list_for_each_entry(f, &vsi->mac_filter_list, list)
2145 i40e_del_filter(vsi, f->macaddr, vid, is_vf, is_netdev);
2146
41c445ff
JB		 2147 /* go through all the filters for this VSI and if there is only
2148 * vid == 0 it means there are no other filters, so vid 0 must
2149 * be replaced with -1. This signifies that we should from now
2150 * on accept any traffic (with any tag present, or untagged)
2151 */
2152 list_for_each_entry(f, &vsi->mac_filter_list, list) {
2153 if (is_netdev) {
2154 if (f->vlan &&
2155 ether_addr_equal(netdev->dev_addr, f->macaddr))
2156 filter_count++;
2157 }
2158
2159 if (f->vlan)
2160 filter_count++;
2161 }
2162
2163 if (!filter_count && is_netdev) {
2164 i40e_del_filter(vsi, netdev->dev_addr, 0, is_vf, is_netdev);
2165 f = i40e_add_filter(vsi, netdev->dev_addr, I40E_VLAN_ANY,
2166 is_vf, is_netdev);
2167 if (!f) {
2168 dev_info(&vsi->back->pdev->dev,
2169 "Could not add filter %d for %pM\n",
2170 I40E_VLAN_ANY, netdev->dev_addr);
2171 return -ENOMEM;
2172 }
2173 }
2174
2175 if (!filter_count) {
2176 list_for_each_entry(f, &vsi->mac_filter_list, list) {
2177 i40e_del_filter(vsi, f->macaddr, 0, is_vf, is_netdev);
2178 add_f = i40e_add_filter(vsi, f->macaddr, I40E_VLAN_ANY,
2179 is_vf, is_netdev);
2180 if (!add_f) {
2181 dev_info(&vsi->back->pdev->dev,
2182 "Could not add filter %d for %pM\n",
2183 I40E_VLAN_ANY, f->macaddr);
2184 return -ENOMEM;
2185 }
2186 }
2187 }
2188
80f6428f
ASJ		 2189 if (test_bit(__I40E_DOWN, &vsi->back->state) ||
2190 test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state))
2191 return 0;
2192
41c445ff
JB		 2193 return i40e_sync_vsi_filters(vsi);
2194}
2195
2196/**
2197 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2198 * @netdev: network interface to be adjusted
2199 * @vid: vlan id to be added
078b5876
JB		 2200 *
2201 * net_device_ops implementation for adding vlan ids
41c445ff 2202 **/
38e00438
VD		 2203#ifdef I40E_FCOE
2204int i40e_vlan_rx_add_vid(struct net_device *netdev,
2205 __always_unused __be16 proto, u16 vid)
2206#else
41c445ff
JB		 2207static int i40e_vlan_rx_add_vid(struct net_device *netdev,
2208 __always_unused __be16 proto, u16 vid)
38e00438 2209#endif
41c445ff
JB		 2210{
2211 struct i40e_netdev_priv *np = netdev_priv(netdev);
2212 struct i40e_vsi *vsi = np->vsi;
078b5876 2213 int ret = 0;
41c445ff
JB		 2214
2215 if (vid > 4095)
078b5876
JB		 2216 return -EINVAL;
2217
2218 netdev_info(netdev, "adding %pM vid=%d\n", netdev->dev_addr, vid);
41c445ff 2219
6982d429
ASJ		 2220 /* If the network stack called us with vid = 0 then
2221 * it is asking to receive priority tagged packets with
2222 * vlan id 0. Our HW receives them by default when configured
2223 * to receive untagged packets so there is no need to add an
2224 * extra filter for vlan 0 tagged packets.
41c445ff 2225 */
6982d429
ASJ		 2226 if (vid)
2227 ret = i40e_vsi_add_vlan(vsi, vid);
41c445ff 2228
078b5876
JB		 2229 if (!ret && (vid < VLAN_N_VID))
2230 set_bit(vid, vsi->active_vlans);
41c445ff 2231
078b5876 2232 return ret;
41c445ff
JB		 2233}
2234
2235/**
2236 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2237 * @netdev: network interface to be adjusted
2238 * @vid: vlan id to be removed
078b5876 2239 *
fdfd943e 2240 * net_device_ops implementation for removing vlan ids
41c445ff 2241 **/
38e00438
VD		 2242#ifdef I40E_FCOE
2243int i40e_vlan_rx_kill_vid(struct net_device *netdev,
2244 __always_unused __be16 proto, u16 vid)
2245#else
41c445ff
JB		 2246static int i40e_vlan_rx_kill_vid(struct net_device *netdev,
2247 __always_unused __be16 proto, u16 vid)
38e00438 2248#endif
41c445ff
JB		 2249{
2250 struct i40e_netdev_priv *np = netdev_priv(netdev);
2251 struct i40e_vsi *vsi = np->vsi;
2252
078b5876
JB		 2253 netdev_info(netdev, "removing %pM vid=%d\n", netdev->dev_addr, vid);
2254
41c445ff
JB		 2255 /* return code is ignored as there is nothing a user
2256 * can do about failure to remove and a log message was
078b5876 2257 * already printed from the other function
41c445ff
JB		 2258 */
2259 i40e_vsi_kill_vlan(vsi, vid);
2260
2261 clear_bit(vid, vsi->active_vlans);
078b5876 2262
41c445ff
JB		 2263 return 0;
2264}
2265
2266/**
2267 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2268 * @vsi: the vsi being brought back up
2269 **/
2270static void i40e_restore_vlan(struct i40e_vsi *vsi)
2271{
2272 u16 vid;
2273
2274 if (!vsi->netdev)
2275 return;
2276
2277 i40e_vlan_rx_register(vsi->netdev, vsi->netdev->features);
2278
2279 for_each_set_bit(vid, vsi->active_vlans, VLAN_N_VID)
2280 i40e_vlan_rx_add_vid(vsi->netdev, htons(ETH_P_8021Q),
2281 vid);
2282}
2283
2284/**
2285 * i40e_vsi_add_pvid - Add pvid for the VSI
2286 * @vsi: the vsi being adjusted
2287 * @vid: the vlan id to set as a PVID
2288 **/
dcae29be 2289int i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid)
41c445ff
JB		 2290{
2291 struct i40e_vsi_context ctxt;
dcae29be 2292 i40e_status aq_ret;
41c445ff
JB		 2293
2294 vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID);
2295 vsi->info.pvid = cpu_to_le16(vid);
6c12fcbf
GR		 2296 vsi->info.port_vlan_flags = I40E_AQ_VSI_PVLAN_MODE_TAGGED |
2297 I40E_AQ_VSI_PVLAN_INSERT_PVID |
b774c7dd 2298 I40E_AQ_VSI_PVLAN_EMOD_STR;
41c445ff
JB		 2299
2300 ctxt.seid = vsi->seid;
1a2f6248 2301 ctxt.info = vsi->info;
dcae29be
JB		 2302 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
2303 if (aq_ret) {
41c445ff
JB		 2304 dev_info(&vsi->back->pdev->dev,
2305 "%s: update vsi failed, aq_err=%d\n",
2306 __func__, vsi->back->hw.aq.asq_last_status);
dcae29be 2307 return -ENOENT;
41c445ff
JB		 2308 }
2309
dcae29be 2310 return 0;
41c445ff
JB		 2311}
2312
2313/**
2314 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2315 * @vsi: the vsi being adjusted
2316 *
2317 * Just use the vlan_rx_register() service to put it back to normal
2318 **/
2319void i40e_vsi_remove_pvid(struct i40e_vsi *vsi)
2320{
6c12fcbf
GR		 2321 i40e_vlan_stripping_disable(vsi);
2322
41c445ff 2323 vsi->info.pvid = 0;
41c445ff
JB		 2324}
2325
2326/**
2327 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2328 * @vsi: ptr to the VSI
2329 *
2330 * If this function returns with an error, then it's possible one or
2331 * more of the rings is populated (while the rest are not). It is the
2332 * callers duty to clean those orphaned rings.
2333 *
2334 * Return 0 on success, negative on failure
2335 **/
2336static int i40e_vsi_setup_tx_resources(struct i40e_vsi *vsi)
2337{
2338 int i, err = 0;
2339
2340 for (i = 0; i < vsi->num_queue_pairs && !err; i++)
9f65e15b 2341 err = i40e_setup_tx_descriptors(vsi->tx_rings[i]);
41c445ff
JB		 2342
2343 return err;
2344}
2345
2346/**
2347 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2348 * @vsi: ptr to the VSI
2349 *
2350 * Free VSI's transmit software resources
2351 **/
2352static void i40e_vsi_free_tx_resources(struct i40e_vsi *vsi)
2353{
2354 int i;
2355
8e9dca53
GR		 2356 if (!vsi->tx_rings)
2357 return;
2358
41c445ff 2359 for (i = 0; i < vsi->num_queue_pairs; i++)
8e9dca53 2360 if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc)
9f65e15b 2361 i40e_free_tx_resources(vsi->tx_rings[i]);
41c445ff
JB		 2362}
2363
2364/**
2365 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2366 * @vsi: ptr to the VSI
2367 *
2368 * If this function returns with an error, then it's possible one or
2369 * more of the rings is populated (while the rest are not). It is the
2370 * callers duty to clean those orphaned rings.
2371 *
2372 * Return 0 on success, negative on failure
2373 **/
2374static int i40e_vsi_setup_rx_resources(struct i40e_vsi *vsi)
2375{
2376 int i, err = 0;
2377
2378 for (i = 0; i < vsi->num_queue_pairs && !err; i++)
9f65e15b 2379 err = i40e_setup_rx_descriptors(vsi->rx_rings[i]);
38e00438
VD		 2380#ifdef I40E_FCOE
2381 i40e_fcoe_setup_ddp_resources(vsi);
2382#endif
41c445ff
JB		 2383 return err;
2384}
2385
2386/**
2387 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2388 * @vsi: ptr to the VSI
2389 *
2390 * Free all receive software resources
2391 **/
2392static void i40e_vsi_free_rx_resources(struct i40e_vsi *vsi)
2393{
2394 int i;
2395
8e9dca53
GR		 2396 if (!vsi->rx_rings)
2397 return;
2398
41c445ff 2399 for (i = 0; i < vsi->num_queue_pairs; i++)
8e9dca53 2400 if (vsi->rx_rings[i] && vsi->rx_rings[i]->desc)
9f65e15b 2401 i40e_free_rx_resources(vsi->rx_rings[i]);
38e00438
VD		 2402#ifdef I40E_FCOE
2403 i40e_fcoe_free_ddp_resources(vsi);
2404#endif
41c445ff
JB		 2405}
2406
3ffa037d
NP		 2407/**
2408 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2409 * @ring: The Tx ring to configure
2410 *
2411 * This enables/disables XPS for a given Tx descriptor ring
2412 * based on the TCs enabled for the VSI that ring belongs to.
2413 **/
2414static void i40e_config_xps_tx_ring(struct i40e_ring *ring)
2415{
2416 struct i40e_vsi *vsi = ring->vsi;
2417 cpumask_var_t mask;
2418
9a660eea
JB		 2419 if (!ring->q_vector || !ring->netdev)
2420 return;
2421
2422 /* Single TC mode enable XPS */
2423 if (vsi->tc_config.numtc <= 1) {
2424 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE, &ring->state))
3ffa037d
NP		 2425 netif_set_xps_queue(ring->netdev,
2426 &ring->q_vector->affinity_mask,
2427 ring->queue_index);
9a660eea
JB		 2428 } else if (alloc_cpumask_var(&mask, GFP_KERNEL)) {
2429 /* Disable XPS to allow selection based on TC */
2430 bitmap_zero(cpumask_bits(mask), nr_cpumask_bits);
2431 netif_set_xps_queue(ring->netdev, mask, ring->queue_index);
2432 free_cpumask_var(mask);
3ffa037d
NP		 2433 }
2434}
2435
41c445ff
JB		 2436/**
2437 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2438 * @ring: The Tx ring to configure
2439 *
2440 * Configure the Tx descriptor ring in the HMC context.
2441 **/
2442static int i40e_configure_tx_ring(struct i40e_ring *ring)
2443{
2444 struct i40e_vsi *vsi = ring->vsi;
2445 u16 pf_q = vsi->base_queue + ring->queue_index;
2446 struct i40e_hw *hw = &vsi->back->hw;
2447 struct i40e_hmc_obj_txq tx_ctx;
2448 i40e_status err = 0;
2449 u32 qtx_ctl = 0;
2450
2451 /* some ATR related tx ring init */
60ea5f83 2452 if (vsi->back->flags & I40E_FLAG_FD_ATR_ENABLED) {
41c445ff
JB		 2453 ring->atr_sample_rate = vsi->back->atr_sample_rate;
2454 ring->atr_count = 0;
2455 } else {
2456 ring->atr_sample_rate = 0;
2457 }
2458
3ffa037d
NP		 2459 /* configure XPS */
2460 i40e_config_xps_tx_ring(ring);
41c445ff
JB		 2461
2462 /* clear the context structure first */
2463 memset(&tx_ctx, 0, sizeof(tx_ctx));
2464
2465 tx_ctx.new_context = 1;
2466 tx_ctx.base = (ring->dma / 128);
2467 tx_ctx.qlen = ring->count;
60ea5f83
JB		 2468 tx_ctx.fd_ena = !!(vsi->back->flags & (I40E_FLAG_FD_SB_ENABLED |
2469 I40E_FLAG_FD_ATR_ENABLED));
38e00438
VD		 2470#ifdef I40E_FCOE
2471 tx_ctx.fc_ena = (vsi->type == I40E_VSI_FCOE);
2472#endif
beb0dff1 2473 tx_ctx.timesync_ena = !!(vsi->back->flags & I40E_FLAG_PTP);
1943d8ba
JB		 2474 /* FDIR VSI tx ring can still use RS bit and writebacks */
2475 if (vsi->type != I40E_VSI_FDIR)
2476 tx_ctx.head_wb_ena = 1;
2477 tx_ctx.head_wb_addr = ring->dma +
2478 (ring->count * sizeof(struct i40e_tx_desc));
41c445ff
JB		 2479
2480 /* As part of VSI creation/update, FW allocates certain
2481 * Tx arbitration queue sets for each TC enabled for
2482 * the VSI. The FW returns the handles to these queue
2483 * sets as part of the response buffer to Add VSI,
2484 * Update VSI, etc. AQ commands. It is expected that
2485 * these queue set handles be associated with the Tx
2486 * queues by the driver as part of the TX queue context
2487 * initialization. This has to be done regardless of
2488 * DCB as by default everything is mapped to TC0.
2489 */
2490 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[ring->dcb_tc]);
2491 tx_ctx.rdylist_act = 0;
2492
2493 /* clear the context in the HMC */
2494 err = i40e_clear_lan_tx_queue_context(hw, pf_q);
2495 if (err) {
2496 dev_info(&vsi->back->pdev->dev,
2497 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2498 ring->queue_index, pf_q, err);
2499 return -ENOMEM;
2500 }
2501
2502 /* set the context in the HMC */
2503 err = i40e_set_lan_tx_queue_context(hw, pf_q, &tx_ctx);
2504 if (err) {
2505 dev_info(&vsi->back->pdev->dev,
2506 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2507 ring->queue_index, pf_q, err);
2508 return -ENOMEM;
2509 }
2510
2511 /* Now associate this queue with this PCI function */
7a28d885 2512 if (vsi->type == I40E_VSI_VMDQ2) {
9d8bf547 2513 qtx_ctl = I40E_QTX_CTL_VM_QUEUE;
7a28d885
MW		 2514 qtx_ctl |= ((vsi->id) << I40E_QTX_CTL_VFVM_INDX_SHIFT) &
2515 I40E_QTX_CTL_VFVM_INDX_MASK;
2516 } else {
9d8bf547 2517 qtx_ctl = I40E_QTX_CTL_PF_QUEUE;
7a28d885
MW		 2518 }
2519
13fd9774
SN		 2520 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) &
2521 I40E_QTX_CTL_PF_INDX_MASK);
41c445ff
JB		 2522 wr32(hw, I40E_QTX_CTL(pf_q), qtx_ctl);
2523 i40e_flush(hw);
2524
2525 clear_bit(__I40E_HANG_CHECK_ARMED, &ring->state);
2526
2527 /* cache tail off for easier writes later */
2528 ring->tail = hw->hw_addr + I40E_QTX_TAIL(pf_q);
2529
2530 return 0;
2531}
2532
2533/**
2534 * i40e_configure_rx_ring - Configure a receive ring context
2535 * @ring: The Rx ring to configure
2536 *
2537 * Configure the Rx descriptor ring in the HMC context.
2538 **/
2539static int i40e_configure_rx_ring(struct i40e_ring *ring)
2540{
2541 struct i40e_vsi *vsi = ring->vsi;
2542 u32 chain_len = vsi->back->hw.func_caps.rx_buf_chain_len;
2543 u16 pf_q = vsi->base_queue + ring->queue_index;
2544 struct i40e_hw *hw = &vsi->back->hw;
2545 struct i40e_hmc_obj_rxq rx_ctx;
2546 i40e_status err = 0;
2547
2548 ring->state = 0;
2549
2550 /* clear the context structure first */
2551 memset(&rx_ctx, 0, sizeof(rx_ctx));
2552
2553 ring->rx_buf_len = vsi->rx_buf_len;
2554 ring->rx_hdr_len = vsi->rx_hdr_len;
2555
2556 rx_ctx.dbuff = ring->rx_buf_len >> I40E_RXQ_CTX_DBUFF_SHIFT;
2557 rx_ctx.hbuff = ring->rx_hdr_len >> I40E_RXQ_CTX_HBUFF_SHIFT;
2558
2559 rx_ctx.base = (ring->dma / 128);
2560 rx_ctx.qlen = ring->count;
2561
2562 if (vsi->back->flags & I40E_FLAG_16BYTE_RX_DESC_ENABLED) {
2563 set_ring_16byte_desc_enabled(ring);
2564 rx_ctx.dsize = 0;
2565 } else {
2566 rx_ctx.dsize = 1;
2567 }
2568
2569 rx_ctx.dtype = vsi->dtype;
2570 if (vsi->dtype) {
2571 set_ring_ps_enabled(ring);
2572 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
2573 I40E_RX_SPLIT_IP |
2574 I40E_RX_SPLIT_TCP_UDP |
2575 I40E_RX_SPLIT_SCTP;
2576 } else {
2577 rx_ctx.hsplit_0 = 0;
2578 }
2579
2580 rx_ctx.rxmax = min_t(u16, vsi->max_frame,
2581 (chain_len * ring->rx_buf_len));
7134f9ce
JB		 2582 if (hw->revision_id == 0)
2583 rx_ctx.lrxqthresh = 0;
2584 else
2585 rx_ctx.lrxqthresh = 2;
41c445ff
JB		 2586 rx_ctx.crcstrip = 1;
2587 rx_ctx.l2tsel = 1;
2588 rx_ctx.showiv = 1;
38e00438
VD		 2589#ifdef I40E_FCOE
2590 rx_ctx.fc_ena = (vsi->type == I40E_VSI_FCOE);
2591#endif
acb3676b
CS		 2592 /* set the prefena field to 1 because the manual says to */
2593 rx_ctx.prefena = 1;
41c445ff
JB		 2594
2595 /* clear the context in the HMC */
2596 err = i40e_clear_lan_rx_queue_context(hw, pf_q);
2597 if (err) {
2598 dev_info(&vsi->back->pdev->dev,
2599 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2600 ring->queue_index, pf_q, err);
2601 return -ENOMEM;
2602 }
2603
2604 /* set the context in the HMC */
2605 err = i40e_set_lan_rx_queue_context(hw, pf_q, &rx_ctx);
2606 if (err) {
2607 dev_info(&vsi->back->pdev->dev,
2608 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2609 ring->queue_index, pf_q, err);
2610 return -ENOMEM;
2611 }
2612
2613 /* cache tail for quicker writes, and clear the reg before use */
2614 ring->tail = hw->hw_addr + I40E_QRX_TAIL(pf_q);
2615 writel(0, ring->tail);
2616
a132af24
MW		 2617 if (ring_is_ps_enabled(ring)) {
2618 i40e_alloc_rx_headers(ring);
2619 i40e_alloc_rx_buffers_ps(ring, I40E_DESC_UNUSED(ring));
2620 } else {
2621 i40e_alloc_rx_buffers_1buf(ring, I40E_DESC_UNUSED(ring));
2622 }
41c445ff
JB		 2623
2624 return 0;
2625}
2626
2627/**
2628 * i40e_vsi_configure_tx - Configure the VSI for Tx
2629 * @vsi: VSI structure describing this set of rings and resources
2630 *
2631 * Configure the Tx VSI for operation.
2632 **/
2633static int i40e_vsi_configure_tx(struct i40e_vsi *vsi)
2634{
2635 int err = 0;
2636 u16 i;
2637
9f65e15b
AD		 2638 for (i = 0; (i < vsi->num_queue_pairs) && !err; i++)
2639 err = i40e_configure_tx_ring(vsi->tx_rings[i]);
41c445ff
JB		 2640
2641 return err;
2642}
2643
2644/**
2645 * i40e_vsi_configure_rx - Configure the VSI for Rx
2646 * @vsi: the VSI being configured
2647 *
2648 * Configure the Rx VSI for operation.
2649 **/
2650static int i40e_vsi_configure_rx(struct i40e_vsi *vsi)
2651{
2652 int err = 0;
2653 u16 i;
2654
2655 if (vsi->netdev && (vsi->netdev->mtu > ETH_DATA_LEN))
2656 vsi->max_frame = vsi->netdev->mtu + ETH_HLEN
2657 + ETH_FCS_LEN + VLAN_HLEN;
2658 else
2659 vsi->max_frame = I40E_RXBUFFER_2048;
2660
2661 /* figure out correct receive buffer length */
2662 switch (vsi->back->flags & (I40E_FLAG_RX_1BUF_ENABLED |
2663 I40E_FLAG_RX_PS_ENABLED)) {
2664 case I40E_FLAG_RX_1BUF_ENABLED:
2665 vsi->rx_hdr_len = 0;
2666 vsi->rx_buf_len = vsi->max_frame;
2667 vsi->dtype = I40E_RX_DTYPE_NO_SPLIT;
2668 break;
2669 case I40E_FLAG_RX_PS_ENABLED:
2670 vsi->rx_hdr_len = I40E_RX_HDR_SIZE;
2671 vsi->rx_buf_len = I40E_RXBUFFER_2048;
2672 vsi->dtype = I40E_RX_DTYPE_HEADER_SPLIT;
2673 break;
2674 default:
2675 vsi->rx_hdr_len = I40E_RX_HDR_SIZE;
2676 vsi->rx_buf_len = I40E_RXBUFFER_2048;
2677 vsi->dtype = I40E_RX_DTYPE_SPLIT_ALWAYS;
2678 break;
2679 }
2680
38e00438
VD		 2681#ifdef I40E_FCOE
2682 /* setup rx buffer for FCoE */
2683 if ((vsi->type == I40E_VSI_FCOE) &&
2684 (vsi->back->flags & I40E_FLAG_FCOE_ENABLED)) {
2685 vsi->rx_hdr_len = 0;
2686 vsi->rx_buf_len = I40E_RXBUFFER_3072;
2687 vsi->max_frame = I40E_RXBUFFER_3072;
2688 vsi->dtype = I40E_RX_DTYPE_NO_SPLIT;
2689 }
2690
2691#endif /* I40E_FCOE */
41c445ff
JB		 2692 /* round up for the chip's needs */
2693 vsi->rx_hdr_len = ALIGN(vsi->rx_hdr_len,
2694 (1 << I40E_RXQ_CTX_HBUFF_SHIFT));
2695 vsi->rx_buf_len = ALIGN(vsi->rx_buf_len,
2696 (1 << I40E_RXQ_CTX_DBUFF_SHIFT));
2697
2698 /* set up individual rings */
2699 for (i = 0; i < vsi->num_queue_pairs && !err; i++)
9f65e15b 2700 err = i40e_configure_rx_ring(vsi->rx_rings[i]);
41c445ff
JB		 2701
2702 return err;
2703}
2704
2705/**
2706 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2707 * @vsi: ptr to the VSI
2708 **/
2709static void i40e_vsi_config_dcb_rings(struct i40e_vsi *vsi)
2710{
e7046ee1 2711 struct i40e_ring *tx_ring, *rx_ring;
41c445ff
JB		 2712 u16 qoffset, qcount;
2713 int i, n;
2714
cd238a3e
PN		 2715 if (!(vsi->back->flags & I40E_FLAG_DCB_ENABLED)) {
2716 /* Reset the TC information */
2717 for (i = 0; i < vsi->num_queue_pairs; i++) {
2718 rx_ring = vsi->rx_rings[i];
2719 tx_ring = vsi->tx_rings[i];
2720 rx_ring->dcb_tc = 0;
2721 tx_ring->dcb_tc = 0;
2722 }
2723 }
41c445ff
JB		 2724
2725 for (n = 0; n < I40E_MAX_TRAFFIC_CLASS; n++) {
2726 if (!(vsi->tc_config.enabled_tc & (1 << n)))
2727 continue;
2728
2729 qoffset = vsi->tc_config.tc_info[n].qoffset;
2730 qcount = vsi->tc_config.tc_info[n].qcount;
2731 for (i = qoffset; i < (qoffset + qcount); i++) {
e7046ee1
AA		 2732 rx_ring = vsi->rx_rings[i];
2733 tx_ring = vsi->tx_rings[i];
41c445ff
JB		 2734 rx_ring->dcb_tc = n;
2735 tx_ring->dcb_tc = n;
2736 }
2737 }
2738}
2739
2740/**
2741 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2742 * @vsi: ptr to the VSI
2743 **/
2744static void i40e_set_vsi_rx_mode(struct i40e_vsi *vsi)
2745{
2746 if (vsi->netdev)
2747 i40e_set_rx_mode(vsi->netdev);
2748}
2749
17a73f6b
JG		 2750/**
2751 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2752 * @vsi: Pointer to the targeted VSI
2753 *
2754 * This function replays the hlist on the hw where all the SB Flow Director
2755 * filters were saved.
2756 **/
2757static void i40e_fdir_filter_restore(struct i40e_vsi *vsi)
2758{
2759 struct i40e_fdir_filter *filter;
2760 struct i40e_pf *pf = vsi->back;
2761 struct hlist_node *node;
2762
55a5e60b
ASJ		 2763 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2764 return;
2765
17a73f6b
JG		 2766 hlist_for_each_entry_safe(filter, node,
2767 &pf->fdir_filter_list, fdir_node) {
2768 i40e_add_del_fdir(vsi, filter, true);
2769 }
2770}
2771
41c445ff
JB		 2772/**
2773 * i40e_vsi_configure - Set up the VSI for action
2774 * @vsi: the VSI being configured
2775 **/
2776static int i40e_vsi_configure(struct i40e_vsi *vsi)
2777{
2778 int err;
2779
2780 i40e_set_vsi_rx_mode(vsi);
2781 i40e_restore_vlan(vsi);
2782 i40e_vsi_config_dcb_rings(vsi);
2783 err = i40e_vsi_configure_tx(vsi);
2784 if (!err)
2785 err = i40e_vsi_configure_rx(vsi);
2786
2787 return err;
2788}
2789
2790/**
2791 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2792 * @vsi: the VSI being configured
2793 **/
2794static void i40e_vsi_configure_msix(struct i40e_vsi *vsi)
2795{
2796 struct i40e_pf *pf = vsi->back;
2797 struct i40e_q_vector *q_vector;
2798 struct i40e_hw *hw = &pf->hw;
2799 u16 vector;
2800 int i, q;
2801 u32 val;
2802 u32 qp;
2803
2804 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2805 * and PFINT_LNKLSTn registers, e.g.:
2806 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2807 */
2808 qp = vsi->base_queue;
2809 vector = vsi->base_vector;
493fb300
AD		 2810 for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
2811 q_vector = vsi->q_vectors[i];
41c445ff
JB		 2812 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
2813 q_vector->rx.latency_range = I40E_LOW_LATENCY;
2814 wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1),
2815 q_vector->rx.itr);
2816 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
2817 q_vector->tx.latency_range = I40E_LOW_LATENCY;
2818 wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1),
2819 q_vector->tx.itr);
2820
2821 /* Linked list for the queuepairs assigned to this vector */
2822 wr32(hw, I40E_PFINT_LNKLSTN(vector - 1), qp);
2823 for (q = 0; q < q_vector->num_ringpairs; q++) {
2824 val = I40E_QINT_RQCTL_CAUSE_ENA_MASK |
2825 (I40E_RX_ITR << I40E_QINT_RQCTL_ITR_INDX_SHIFT) |
2826 (vector << I40E_QINT_RQCTL_MSIX_INDX_SHIFT) |
2827 (qp << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT)|
2828 (I40E_QUEUE_TYPE_TX
2829 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT);
2830
2831 wr32(hw, I40E_QINT_RQCTL(qp), val);
2832
2833 val = I40E_QINT_TQCTL_CAUSE_ENA_MASK |
2834 (I40E_TX_ITR << I40E_QINT_TQCTL_ITR_INDX_SHIFT) |
2835 (vector << I40E_QINT_TQCTL_MSIX_INDX_SHIFT) |
2836 ((qp+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT)|
2837 (I40E_QUEUE_TYPE_RX
2838 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT);
2839
2840 /* Terminate the linked list */
2841 if (q == (q_vector->num_ringpairs - 1))
2842 val |= (I40E_QUEUE_END_OF_LIST
2843 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT);
2844
2845 wr32(hw, I40E_QINT_TQCTL(qp), val);
2846 qp++;
2847 }
2848 }
2849
2850 i40e_flush(hw);
2851}
2852
2853/**
2854 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2855 * @hw: ptr to the hardware info
2856 **/
ab437b5a 2857static void i40e_enable_misc_int_causes(struct i40e_pf *pf)
41c445ff 2858{
ab437b5a 2859 struct i40e_hw *hw = &pf->hw;
41c445ff
JB		 2860 u32 val;
2861
2862 /* clear things first */
2863 wr32(hw, I40E_PFINT_ICR0_ENA, 0); /* disable all */
2864 rd32(hw, I40E_PFINT_ICR0); /* read to clear */
2865
2866 val = I40E_PFINT_ICR0_ENA_ECC_ERR_MASK |
2867 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK |
2868 I40E_PFINT_ICR0_ENA_GRST_MASK |
2869 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK |
2870 I40E_PFINT_ICR0_ENA_GPIO_MASK |
41c445ff
JB		 2871 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK |
2872 I40E_PFINT_ICR0_ENA_VFLR_MASK |
2873 I40E_PFINT_ICR0_ENA_ADMINQ_MASK;
2874
ab437b5a
JK		 2875 if (pf->flags & I40E_FLAG_PTP)
2876 val |= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK;
2877
41c445ff
JB		 2878 wr32(hw, I40E_PFINT_ICR0_ENA, val);
2879
2880 /* SW_ITR_IDX = 0, but don't change INTENA */
84ed40e7
ASJ		 2881 wr32(hw, I40E_PFINT_DYN_CTL0, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK |
2882 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK);
41c445ff
JB		 2883
2884 /* OTHER_ITR_IDX = 0 */
2885 wr32(hw, I40E_PFINT_STAT_CTL0, 0);
2886}
2887
2888/**
2889 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
2890 * @vsi: the VSI being configured
2891 **/
2892static void i40e_configure_msi_and_legacy(struct i40e_vsi *vsi)
2893{
493fb300 2894 struct i40e_q_vector *q_vector = vsi->q_vectors[0];
41c445ff
JB		 2895 struct i40e_pf *pf = vsi->back;
2896 struct i40e_hw *hw = &pf->hw;
2897 u32 val;
2898
2899 /* set the ITR configuration */
2900 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
2901 q_vector->rx.latency_range = I40E_LOW_LATENCY;
2902 wr32(hw, I40E_PFINT_ITR0(I40E_RX_ITR), q_vector->rx.itr);
2903 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
2904 q_vector->tx.latency_range = I40E_LOW_LATENCY;
2905 wr32(hw, I40E_PFINT_ITR0(I40E_TX_ITR), q_vector->tx.itr);
2906
ab437b5a 2907 i40e_enable_misc_int_causes(pf);
41c445ff
JB		 2908
2909 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
2910 wr32(hw, I40E_PFINT_LNKLST0, 0);
2911
f29eaa3d 2912 /* Associate the queue pair to the vector and enable the queue int */
41c445ff
JB		 2913 val = I40E_QINT_RQCTL_CAUSE_ENA_MASK |
2914 (I40E_RX_ITR << I40E_QINT_RQCTL_ITR_INDX_SHIFT) |
2915 (I40E_QUEUE_TYPE_TX << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT);
2916
2917 wr32(hw, I40E_QINT_RQCTL(0), val);
2918
2919 val = I40E_QINT_TQCTL_CAUSE_ENA_MASK |
2920 (I40E_TX_ITR << I40E_QINT_TQCTL_ITR_INDX_SHIFT) |
2921 (I40E_QUEUE_END_OF_LIST << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT);
2922
2923 wr32(hw, I40E_QINT_TQCTL(0), val);
2924 i40e_flush(hw);
2925}
2926
2ef28cfb
MW		 2927/**
2928 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
2929 * @pf: board private structure
2930 **/
2931void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf)
2932{
2933 struct i40e_hw *hw = &pf->hw;
2934
2935 wr32(hw, I40E_PFINT_DYN_CTL0,
2936 I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT);
2937 i40e_flush(hw);
2938}
2939
41c445ff
JB		 2940/**
2941 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
2942 * @pf: board private structure
2943 **/
116a57d4 2944void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf)
41c445ff
JB		 2945{
2946 struct i40e_hw *hw = &pf->hw;
2947 u32 val;
2948
2949 val = I40E_PFINT_DYN_CTL0_INTENA_MASK |
2950 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK |
2951 (I40E_ITR_NONE << I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT);
2952
2953 wr32(hw, I40E_PFINT_DYN_CTL0, val);
2954 i40e_flush(hw);
2955}
2956
2957/**
2958 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
2959 * @vsi: pointer to a vsi
2960 * @vector: enable a particular Hw Interrupt vector
2961 **/
2962void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector)
2963{
2964 struct i40e_pf *pf = vsi->back;
2965 struct i40e_hw *hw = &pf->hw;
2966 u32 val;
2967
2968 val = I40E_PFINT_DYN_CTLN_INTENA_MASK |
2969 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK |
2970 (I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT);
2971 wr32(hw, I40E_PFINT_DYN_CTLN(vector - 1), val);
1022cb6c 2972 /* skip the flush */
41c445ff
JB		 2973}
2974
5c2cebda
CW		 2975/**
2976 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
2977 * @vsi: pointer to a vsi
03147773 2978 * @vector: disable a particular Hw Interrupt vector
5c2cebda
CW		 2979 **/
2980void i40e_irq_dynamic_disable(struct i40e_vsi *vsi, int vector)
2981{
2982 struct i40e_pf *pf = vsi->back;
2983 struct i40e_hw *hw = &pf->hw;
2984 u32 val;
2985
2986 val = I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT;
2987 wr32(hw, I40E_PFINT_DYN_CTLN(vector - 1), val);
2988 i40e_flush(hw);
2989}
2990
41c445ff
JB		 2991/**
2992 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
2993 * @irq: interrupt number
2994 * @data: pointer to a q_vector
2995 **/
2996static irqreturn_t i40e_msix_clean_rings(int irq, void *data)
2997{
2998 struct i40e_q_vector *q_vector = data;
2999
cd0b6fa6 3000 if (!q_vector->tx.ring && !q_vector->rx.ring)
41c445ff
JB		 3001 return IRQ_HANDLED;
3002
3003 napi_schedule(&q_vector->napi);
3004
3005 return IRQ_HANDLED;
3006}
3007
41c445ff
JB		 3008/**
3009 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3010 * @vsi: the VSI being configured
3011 * @basename: name for the vector
3012 *
3013 * Allocates MSI-X vectors and requests interrupts from the kernel.
3014 **/
3015static int i40e_vsi_request_irq_msix(struct i40e_vsi *vsi, char *basename)
3016{
3017 int q_vectors = vsi->num_q_vectors;
3018 struct i40e_pf *pf = vsi->back;
3019 int base = vsi->base_vector;
3020 int rx_int_idx = 0;
3021 int tx_int_idx = 0;
3022 int vector, err;
3023
3024 for (vector = 0; vector < q_vectors; vector++) {
493fb300 3025 struct i40e_q_vector *q_vector = vsi->q_vectors[vector];
41c445ff 3026
cd0b6fa6 3027 if (q_vector->tx.ring && q_vector->rx.ring) {
41c445ff
JB		 3028 snprintf(q_vector->name, sizeof(q_vector->name) - 1,
3029 "%s-%s-%d", basename, "TxRx", rx_int_idx++);
3030 tx_int_idx++;
cd0b6fa6 3031 } else if (q_vector->rx.ring) {
41c445ff
JB		 3032 snprintf(q_vector->name, sizeof(q_vector->name) - 1,
3033 "%s-%s-%d", basename, "rx", rx_int_idx++);
cd0b6fa6 3034 } else if (q_vector->tx.ring) {
41c445ff
JB		 3035 snprintf(q_vector->name, sizeof(q_vector->name) - 1,
3036 "%s-%s-%d", basename, "tx", tx_int_idx++);
3037 } else {
3038 /* skip this unused q_vector */
3039 continue;
3040 }
3041 err = request_irq(pf->msix_entries[base + vector].vector,
3042 vsi->irq_handler,
3043 0,
3044 q_vector->name,
3045 q_vector);
3046 if (err) {
3047 dev_info(&pf->pdev->dev,
3048 "%s: request_irq failed, error: %d\n",
3049 __func__, err);
3050 goto free_queue_irqs;
3051 }
3052 /* assign the mask for this irq */
3053 irq_set_affinity_hint(pf->msix_entries[base + vector].vector,
3054 &q_vector->affinity_mask);
3055 }
3056
63741846 3057 vsi->irqs_ready = true;
41c445ff
JB		 3058 return 0;
3059
3060free_queue_irqs:
3061 while (vector) {
3062 vector--;
3063 irq_set_affinity_hint(pf->msix_entries[base + vector].vector,
3064 NULL);
3065 free_irq(pf->msix_entries[base + vector].vector,
3066 &(vsi->q_vectors[vector]));
3067 }
3068 return err;
3069}
3070
3071/**
3072 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3073 * @vsi: the VSI being un-configured
3074 **/
3075static void i40e_vsi_disable_irq(struct i40e_vsi *vsi)
3076{
3077 struct i40e_pf *pf = vsi->back;
3078 struct i40e_hw *hw = &pf->hw;
3079 int base = vsi->base_vector;
3080 int i;
3081
3082 for (i = 0; i < vsi->num_queue_pairs; i++) {
9f65e15b
AD		 3083 wr32(hw, I40E_QINT_TQCTL(vsi->tx_rings[i]->reg_idx), 0);
3084 wr32(hw, I40E_QINT_RQCTL(vsi->rx_rings[i]->reg_idx), 0);
41c445ff
JB		 3085 }
3086
3087 if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
3088 for (i = vsi->base_vector;
3089 i < (vsi->num_q_vectors + vsi->base_vector); i++)
3090 wr32(hw, I40E_PFINT_DYN_CTLN(i - 1), 0);
3091
3092 i40e_flush(hw);
3093 for (i = 0; i < vsi->num_q_vectors; i++)
3094 synchronize_irq(pf->msix_entries[i + base].vector);
3095 } else {
3096 /* Legacy and MSI mode - this stops all interrupt handling */
3097 wr32(hw, I40E_PFINT_ICR0_ENA, 0);
3098 wr32(hw, I40E_PFINT_DYN_CTL0, 0);
3099 i40e_flush(hw);
3100 synchronize_irq(pf->pdev->irq);
3101 }
3102}
3103
3104/**
3105 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3106 * @vsi: the VSI being configured
3107 **/
3108static int i40e_vsi_enable_irq(struct i40e_vsi *vsi)
3109{
3110 struct i40e_pf *pf = vsi->back;
3111 int i;
3112
3113 if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
3114 for (i = vsi->base_vector;
3115 i < (vsi->num_q_vectors + vsi->base_vector); i++)
3116 i40e_irq_dynamic_enable(vsi, i);
3117 } else {
3118 i40e_irq_dynamic_enable_icr0(pf);
3119 }
3120
1022cb6c 3121 i40e_flush(&pf->hw);
41c445ff
JB		 3122 return 0;
3123}
3124
3125/**
3126 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3127 * @pf: board private structure
3128 **/
3129static void i40e_stop_misc_vector(struct i40e_pf *pf)
3130{
3131 /* Disable ICR 0 */
3132 wr32(&pf->hw, I40E_PFINT_ICR0_ENA, 0);
3133 i40e_flush(&pf->hw);
3134}
3135
3136/**
3137 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3138 * @irq: interrupt number
3139 * @data: pointer to a q_vector
3140 *
3141 * This is the handler used for all MSI/Legacy interrupts, and deals
3142 * with both queue and non-queue interrupts. This is also used in
3143 * MSIX mode to handle the non-queue interrupts.
3144 **/
3145static irqreturn_t i40e_intr(int irq, void *data)
3146{
3147 struct i40e_pf *pf = (struct i40e_pf *)data;
3148 struct i40e_hw *hw = &pf->hw;
5e823066 3149 irqreturn_t ret = IRQ_NONE;
41c445ff
JB		 3150 u32 icr0, icr0_remaining;
3151 u32 val, ena_mask;
3152
3153 icr0 = rd32(hw, I40E_PFINT_ICR0);
5e823066 3154 ena_mask = rd32(hw, I40E_PFINT_ICR0_ENA);
41c445ff 3155
116a57d4
SN		 3156 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3157 if ((icr0 & I40E_PFINT_ICR0_INTEVENT_MASK) == 0)
5e823066 3158 goto enable_intr;
41c445ff 3159
cd92e72f
SN		 3160 /* if interrupt but no bits showing, must be SWINT */
3161 if (((icr0 & ~I40E_PFINT_ICR0_INTEVENT_MASK) == 0) ||
3162 (icr0 & I40E_PFINT_ICR0_SWINT_MASK))
3163 pf->sw_int_count++;
3164
41c445ff
JB		 3165 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3166 if (icr0 & I40E_PFINT_ICR0_QUEUE_0_MASK) {
3167
3168 /* temporarily disable queue cause for NAPI processing */
3169 u32 qval = rd32(hw, I40E_QINT_RQCTL(0));
3170 qval &= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK;
3171 wr32(hw, I40E_QINT_RQCTL(0), qval);
3172
3173 qval = rd32(hw, I40E_QINT_TQCTL(0));
3174 qval &= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK;
3175 wr32(hw, I40E_QINT_TQCTL(0), qval);
41c445ff
JB		 3176
3177 if (!test_bit(__I40E_DOWN, &pf->state))
493fb300 3178 napi_schedule(&pf->vsi[pf->lan_vsi]->q_vectors[0]->napi);
41c445ff
JB		 3179 }
3180
3181 if (icr0 & I40E_PFINT_ICR0_ADMINQ_MASK) {
3182 ena_mask &= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK;
3183 set_bit(__I40E_ADMINQ_EVENT_PENDING, &pf->state);
3184 }
3185
3186 if (icr0 & I40E_PFINT_ICR0_MAL_DETECT_MASK) {
3187 ena_mask &= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK;
3188 set_bit(__I40E_MDD_EVENT_PENDING, &pf->state);
3189 }
3190
3191 if (icr0 & I40E_PFINT_ICR0_VFLR_MASK) {
3192 ena_mask &= ~I40E_PFINT_ICR0_ENA_VFLR_MASK;
3193 set_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
3194 }
3195
3196 if (icr0 & I40E_PFINT_ICR0_GRST_MASK) {
3197 if (!test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state))
3198 set_bit(__I40E_RESET_INTR_RECEIVED, &pf->state);
3199 ena_mask &= ~I40E_PFINT_ICR0_ENA_GRST_MASK;
3200 val = rd32(hw, I40E_GLGEN_RSTAT);
3201 val = (val & I40E_GLGEN_RSTAT_RESET_TYPE_MASK)
3202 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT;
4eb3f768 3203 if (val == I40E_RESET_CORER) {
41c445ff 3204 pf->corer_count++;
4eb3f768 3205 } else if (val == I40E_RESET_GLOBR) {
41c445ff 3206 pf->globr_count++;
4eb3f768 3207 } else if (val == I40E_RESET_EMPR) {
41c445ff 3208 pf->empr_count++;
9df42d1a 3209 set_bit(__I40E_EMP_RESET_INTR_RECEIVED, &pf->state);
4eb3f768 3210 }
41c445ff
JB		 3211 }
3212
9c010ee0
ASJ		 3213 if (icr0 & I40E_PFINT_ICR0_HMC_ERR_MASK) {
3214 icr0 &= ~I40E_PFINT_ICR0_HMC_ERR_MASK;
3215 dev_info(&pf->pdev->dev, "HMC error interrupt\n");
25fc0e65
ASJ		 3216 dev_info(&pf->pdev->dev, "HMC error info 0x%x, HMC error data 0x%x\n",
3217 rd32(hw, I40E_PFHMC_ERRORINFO),
3218 rd32(hw, I40E_PFHMC_ERRORDATA));
9c010ee0
ASJ		 3219 }
3220
beb0dff1
JK		 3221 if (icr0 & I40E_PFINT_ICR0_TIMESYNC_MASK) {
3222 u32 prttsyn_stat = rd32(hw, I40E_PRTTSYN_STAT_0);
3223
3224 if (prttsyn_stat & I40E_PRTTSYN_STAT_0_TXTIME_MASK) {
cafa1fca 3225 icr0 &= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK;
beb0dff1 3226 i40e_ptp_tx_hwtstamp(pf);
beb0dff1 3227 }
beb0dff1
JK		 3228 }
3229
41c445ff
JB		 3230 /* If a critical error is pending we have no choice but to reset the
3231 * device.
3232 * Report and mask out any remaining unexpected interrupts.
3233 */
3234 icr0_remaining = icr0 & ena_mask;
3235 if (icr0_remaining) {
3236 dev_info(&pf->pdev->dev, "unhandled interrupt icr0=0x%08x\n",
3237 icr0_remaining);
9c010ee0 3238 if ((icr0_remaining & I40E_PFINT_ICR0_PE_CRITERR_MASK) ||
41c445ff 3239 (icr0_remaining & I40E_PFINT_ICR0_PCI_EXCEPTION_MASK) ||
c0c28975 3240 (icr0_remaining & I40E_PFINT_ICR0_ECC_ERR_MASK)) {
9c010ee0
ASJ		 3241 dev_info(&pf->pdev->dev, "device will be reset\n");
3242 set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
3243 i40e_service_event_schedule(pf);
41c445ff
JB		 3244 }
3245 ena_mask &= ~icr0_remaining;
3246 }
5e823066 3247 ret = IRQ_HANDLED;
41c445ff 3248
5e823066 3249enable_intr:
41c445ff
JB		 3250 /* re-enable interrupt causes */
3251 wr32(hw, I40E_PFINT_ICR0_ENA, ena_mask);
41c445ff
JB		 3252 if (!test_bit(__I40E_DOWN, &pf->state)) {
3253 i40e_service_event_schedule(pf);
3254 i40e_irq_dynamic_enable_icr0(pf);
3255 }
3256
5e823066 3257 return ret;
41c445ff
JB		 3258}
3259
cbf61325
ASJ		 3260/**
3261 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3262 * @tx_ring: tx ring to clean
3263 * @budget: how many cleans we're allowed
3264 *
3265 * Returns true if there's any budget left (e.g. the clean is finished)
3266 **/
3267static bool i40e_clean_fdir_tx_irq(struct i40e_ring *tx_ring, int budget)
3268{
3269 struct i40e_vsi *vsi = tx_ring->vsi;
3270 u16 i = tx_ring->next_to_clean;
3271 struct i40e_tx_buffer *tx_buf;
3272 struct i40e_tx_desc *tx_desc;
3273
3274 tx_buf = &tx_ring->tx_bi[i];
3275 tx_desc = I40E_TX_DESC(tx_ring, i);
3276 i -= tx_ring->count;
3277
3278 do {
3279 struct i40e_tx_desc *eop_desc = tx_buf->next_to_watch;
3280
3281 /* if next_to_watch is not set then there is no work pending */
3282 if (!eop_desc)
3283 break;
3284
3285 /* prevent any other reads prior to eop_desc */
3286 read_barrier_depends();
3287
3288 /* if the descriptor isn't done, no work yet to do */
3289 if (!(eop_desc->cmd_type_offset_bsz &
3290 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE)))
3291 break;
3292
3293 /* clear next_to_watch to prevent false hangs */
3294 tx_buf->next_to_watch = NULL;
3295
49d7d933
ASJ		 3296 tx_desc->buffer_addr = 0;
3297 tx_desc->cmd_type_offset_bsz = 0;
3298 /* move past filter desc */
3299 tx_buf++;
3300 tx_desc++;
3301 i++;
3302 if (unlikely(!i)) {
3303 i -= tx_ring->count;
3304 tx_buf = tx_ring->tx_bi;
3305 tx_desc = I40E_TX_DESC(tx_ring, 0);
3306 }
cbf61325
ASJ		 3307 /* unmap skb header data */
3308 dma_unmap_single(tx_ring->dev,
3309 dma_unmap_addr(tx_buf, dma),
3310 dma_unmap_len(tx_buf, len),
3311 DMA_TO_DEVICE);
49d7d933
ASJ		 3312 if (tx_buf->tx_flags & I40E_TX_FLAGS_FD_SB)
3313 kfree(tx_buf->raw_buf);
cbf61325 3314
49d7d933
ASJ		 3315 tx_buf->raw_buf = NULL;
3316 tx_buf->tx_flags = 0;
3317 tx_buf->next_to_watch = NULL;
cbf61325 3318 dma_unmap_len_set(tx_buf, len, 0);
49d7d933
ASJ		 3319 tx_desc->buffer_addr = 0;
3320 tx_desc->cmd_type_offset_bsz = 0;
cbf61325 3321
49d7d933 3322 /* move us past the eop_desc for start of next FD desc */
cbf61325
ASJ		 3323 tx_buf++;
3324 tx_desc++;
3325 i++;
3326 if (unlikely(!i)) {
3327 i -= tx_ring->count;
3328 tx_buf = tx_ring->tx_bi;
3329 tx_desc = I40E_TX_DESC(tx_ring, 0);
3330 }
3331
3332 /* update budget accounting */
3333 budget--;
3334 } while (likely(budget));
3335
3336 i += tx_ring->count;
3337 tx_ring->next_to_clean = i;
3338
3339 if (vsi->back->flags & I40E_FLAG_MSIX_ENABLED) {
3340 i40e_irq_dynamic_enable(vsi,
3341 tx_ring->q_vector->v_idx + vsi->base_vector);
3342 }
3343 return budget > 0;
3344}
3345
3346/**
3347 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3348 * @irq: interrupt number
3349 * @data: pointer to a q_vector
3350 **/
3351static irqreturn_t i40e_fdir_clean_ring(int irq, void *data)
3352{
3353 struct i40e_q_vector *q_vector = data;
3354 struct i40e_vsi *vsi;
3355
3356 if (!q_vector->tx.ring)
3357 return IRQ_HANDLED;
3358
3359 vsi = q_vector->tx.ring->vsi;
3360 i40e_clean_fdir_tx_irq(q_vector->tx.ring, vsi->work_limit);
3361
3362 return IRQ_HANDLED;
3363}
3364
41c445ff 3365/**
cd0b6fa6 3366 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
41c445ff
JB		 3367 * @vsi: the VSI being configured
3368 * @v_idx: vector index
cd0b6fa6 3369 * @qp_idx: queue pair index
41c445ff 3370 **/
cd0b6fa6 3371static void map_vector_to_qp(struct i40e_vsi *vsi, int v_idx, int qp_idx)
41c445ff 3372{
493fb300 3373 struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx];
9f65e15b
AD		 3374 struct i40e_ring *tx_ring = vsi->tx_rings[qp_idx];
3375 struct i40e_ring *rx_ring = vsi->rx_rings[qp_idx];
41c445ff
JB		 3376
3377 tx_ring->q_vector = q_vector;
cd0b6fa6
AD		 3378 tx_ring->next = q_vector->tx.ring;
3379 q_vector->tx.ring = tx_ring;
41c445ff 3380 q_vector->tx.count++;
cd0b6fa6
AD		 3381
3382 rx_ring->q_vector = q_vector;
3383 rx_ring->next = q_vector->rx.ring;
3384 q_vector->rx.ring = rx_ring;
3385 q_vector->rx.count++;
41c445ff
JB		 3386}
3387
3388/**
3389 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3390 * @vsi: the VSI being configured
3391 *
3392 * This function maps descriptor rings to the queue-specific vectors
3393 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3394 * one vector per queue pair, but on a constrained vector budget, we
3395 * group the queue pairs as "efficiently" as possible.
3396 **/
3397static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi *vsi)
3398{
3399 int qp_remaining = vsi->num_queue_pairs;
3400 int q_vectors = vsi->num_q_vectors;
cd0b6fa6 3401 int num_ringpairs;
41c445ff
JB		 3402 int v_start = 0;
3403 int qp_idx = 0;
3404
3405 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3406 * group them so there are multiple queues per vector.
70114ec4
ASJ		 3407 * It is also important to go through all the vectors available to be
3408 * sure that if we don't use all the vectors, that the remaining vectors
3409 * are cleared. This is especially important when decreasing the
3410 * number of queues in use.
41c445ff 3411 */
70114ec4 3412 for (; v_start < q_vectors; v_start++) {
cd0b6fa6
AD		 3413 struct i40e_q_vector *q_vector = vsi->q_vectors[v_start];
3414
3415 num_ringpairs = DIV_ROUND_UP(qp_remaining, q_vectors - v_start);
3416
3417 q_vector->num_ringpairs = num_ringpairs;
3418
3419 q_vector->rx.count = 0;
3420 q_vector->tx.count = 0;
3421 q_vector->rx.ring = NULL;
3422 q_vector->tx.ring = NULL;
3423
3424 while (num_ringpairs--) {
3425 map_vector_to_qp(vsi, v_start, qp_idx);
3426 qp_idx++;
3427 qp_remaining--;
41c445ff
JB		 3428 }
3429 }
3430}
3431
3432/**
3433 * i40e_vsi_request_irq - Request IRQ from the OS
3434 * @vsi: the VSI being configured
3435 * @basename: name for the vector
3436 **/
3437static int i40e_vsi_request_irq(struct i40e_vsi *vsi, char *basename)
3438{
3439 struct i40e_pf *pf = vsi->back;
3440 int err;
3441
3442 if (pf->flags & I40E_FLAG_MSIX_ENABLED)
3443 err = i40e_vsi_request_irq_msix(vsi, basename);
3444 else if (pf->flags & I40E_FLAG_MSI_ENABLED)
3445 err = request_irq(pf->pdev->irq, i40e_intr, 0,
b294ac70 3446 pf->int_name, pf);
41c445ff
JB		 3447 else
3448 err = request_irq(pf->pdev->irq, i40e_intr, IRQF_SHARED,
b294ac70 3449 pf->int_name, pf);
41c445ff
JB		 3450
3451 if (err)
3452 dev_info(&pf->pdev->dev, "request_irq failed, Error %d\n", err);
3453
3454 return err;
3455}
3456
3457#ifdef CONFIG_NET_POLL_CONTROLLER
3458/**
3459 * i40e_netpoll - A Polling 'interrupt'handler
3460 * @netdev: network interface device structure
3461 *
3462 * This is used by netconsole to send skbs without having to re-enable
3463 * interrupts. It's not called while the normal interrupt routine is executing.
3464 **/
38e00438
VD		 3465#ifdef I40E_FCOE
3466void i40e_netpoll(struct net_device *netdev)
3467#else
41c445ff 3468static void i40e_netpoll(struct net_device *netdev)
38e00438 3469#endif
41c445ff
JB		 3470{
3471 struct i40e_netdev_priv *np = netdev_priv(netdev);
3472 struct i40e_vsi *vsi = np->vsi;
3473 struct i40e_pf *pf = vsi->back;
3474 int i;
3475
3476 /* if interface is down do nothing */
3477 if (test_bit(__I40E_DOWN, &vsi->state))
3478 return;
3479
3480 pf->flags |= I40E_FLAG_IN_NETPOLL;
3481 if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
3482 for (i = 0; i < vsi->num_q_vectors; i++)
493fb300 3483 i40e_msix_clean_rings(0, vsi->q_vectors[i]);
41c445ff
JB		 3484 } else {
3485 i40e_intr(pf->pdev->irq, netdev);
3486 }
3487 pf->flags &= ~I40E_FLAG_IN_NETPOLL;
3488}
3489#endif
3490
23527308
NP		 3491/**
3492 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3493 * @pf: the PF being configured
3494 * @pf_q: the PF queue
3495 * @enable: enable or disable state of the queue
3496 *
3497 * This routine will wait for the given Tx queue of the PF to reach the
3498 * enabled or disabled state.
3499 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3500 * multiple retries; else will return 0 in case of success.
3501 **/
3502static int i40e_pf_txq_wait(struct i40e_pf *pf, int pf_q, bool enable)
3503{
3504 int i;
3505 u32 tx_reg;
3506
3507 for (i = 0; i < I40E_QUEUE_WAIT_RETRY_LIMIT; i++) {
3508 tx_reg = rd32(&pf->hw, I40E_QTX_ENA(pf_q));
3509 if (enable == !!(tx_reg & I40E_QTX_ENA_QENA_STAT_MASK))
3510 break;
3511
f98a2006 3512 usleep_range(10, 20);
23527308
NP		 3513 }
3514 if (i >= I40E_QUEUE_WAIT_RETRY_LIMIT)
3515 return -ETIMEDOUT;
3516
3517 return 0;
3518}
3519
41c445ff
JB		 3520/**
3521 * i40e_vsi_control_tx - Start or stop a VSI's rings
3522 * @vsi: the VSI being configured
3523 * @enable: start or stop the rings
3524 **/
3525static int i40e_vsi_control_tx(struct i40e_vsi *vsi, bool enable)
3526{
3527 struct i40e_pf *pf = vsi->back;
3528 struct i40e_hw *hw = &pf->hw;
23527308 3529 int i, j, pf_q, ret = 0;
41c445ff
JB		 3530 u32 tx_reg;
3531
3532 pf_q = vsi->base_queue;
3533 for (i = 0; i < vsi->num_queue_pairs; i++, pf_q++) {
351499ab
MJ		 3534
3535 /* warn the TX unit of coming changes */
3536 i40e_pre_tx_queue_cfg(&pf->hw, pf_q, enable);
3537 if (!enable)
f98a2006 3538 usleep_range(10, 20);
351499ab 3539
6c5ef620 3540 for (j = 0; j < 50; j++) {
41c445ff 3541 tx_reg = rd32(hw, I40E_QTX_ENA(pf_q));
6c5ef620
MW		 3542 if (((tx_reg >> I40E_QTX_ENA_QENA_REQ_SHIFT) & 1) ==
3543 ((tx_reg >> I40E_QTX_ENA_QENA_STAT_SHIFT) & 1))
3544 break;
3545 usleep_range(1000, 2000);
3546 }
fda972f6 3547 /* Skip if the queue is already in the requested state */
7c122007 3548 if (enable == !!(tx_reg & I40E_QTX_ENA_QENA_STAT_MASK))
fda972f6 3549 continue;
41c445ff
JB		 3550
3551 /* turn on/off the queue */
c5c9eb9e
SN		 3552 if (enable) {
3553 wr32(hw, I40E_QTX_HEAD(pf_q), 0);
6c5ef620 3554 tx_reg |= I40E_QTX_ENA_QENA_REQ_MASK;
c5c9eb9e 3555 } else {
41c445ff 3556 tx_reg &= ~I40E_QTX_ENA_QENA_REQ_MASK;
c5c9eb9e 3557 }
41c445ff
JB		 3558
3559 wr32(hw, I40E_QTX_ENA(pf_q), tx_reg);
69129dc3
NP		 3560 /* No waiting for the Tx queue to disable */
3561 if (!enable && test_bit(__I40E_PORT_TX_SUSPENDED, &pf->state))
3562 continue;
41c445ff
JB		 3563
3564 /* wait for the change to finish */
23527308
NP		 3565 ret = i40e_pf_txq_wait(pf, pf_q, enable);
3566 if (ret) {
3567 dev_info(&pf->pdev->dev,
3568 "%s: VSI seid %d Tx ring %d %sable timeout\n",
3569 __func__, vsi->seid, pf_q,
3570 (enable ? "en" : "dis"));
3571 break;
41c445ff
JB		 3572 }
3573 }
3574
7134f9ce
JB		 3575 if (hw->revision_id == 0)
3576 mdelay(50);
23527308
NP		 3577 return ret;
3578}
3579
3580/**
3581 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3582 * @pf: the PF being configured
3583 * @pf_q: the PF queue
3584 * @enable: enable or disable state of the queue
3585 *
3586 * This routine will wait for the given Rx queue of the PF to reach the
3587 * enabled or disabled state.
3588 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3589 * multiple retries; else will return 0 in case of success.
3590 **/
3591static int i40e_pf_rxq_wait(struct i40e_pf *pf, int pf_q, bool enable)
3592{
3593 int i;
3594 u32 rx_reg;
3595
3596 for (i = 0; i < I40E_QUEUE_WAIT_RETRY_LIMIT; i++) {
3597 rx_reg = rd32(&pf->hw, I40E_QRX_ENA(pf_q));
3598 if (enable == !!(rx_reg & I40E_QRX_ENA_QENA_STAT_MASK))
3599 break;
3600
f98a2006 3601 usleep_range(10, 20);
23527308
NP		 3602 }
3603 if (i >= I40E_QUEUE_WAIT_RETRY_LIMIT)
3604 return -ETIMEDOUT;
7134f9ce 3605
41c445ff
JB		 3606 return 0;
3607}
3608
3609/**
3610 * i40e_vsi_control_rx - Start or stop a VSI's rings
3611 * @vsi: the VSI being configured
3612 * @enable: start or stop the rings
3613 **/
3614static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable)
3615{
3616 struct i40e_pf *pf = vsi->back;
3617 struct i40e_hw *hw = &pf->hw;
23527308 3618 int i, j, pf_q, ret = 0;
41c445ff
JB		 3619 u32 rx_reg;
3620
3621 pf_q = vsi->base_queue;
3622 for (i = 0; i < vsi->num_queue_pairs; i++, pf_q++) {
6c5ef620 3623 for (j = 0; j < 50; j++) {
41c445ff 3624 rx_reg = rd32(hw, I40E_QRX_ENA(pf_q));
6c5ef620
MW		 3625 if (((rx_reg >> I40E_QRX_ENA_QENA_REQ_SHIFT) & 1) ==
3626 ((rx_reg >> I40E_QRX_ENA_QENA_STAT_SHIFT) & 1))
3627 break;
3628 usleep_range(1000, 2000);
3629 }
41c445ff 3630
7c122007
CS		 3631 /* Skip if the queue is already in the requested state */
3632 if (enable == !!(rx_reg & I40E_QRX_ENA_QENA_STAT_MASK))
3633 continue;
41c445ff
JB		 3634
3635 /* turn on/off the queue */
3636 if (enable)
6c5ef620 3637 rx_reg |= I40E_QRX_ENA_QENA_REQ_MASK;
41c445ff 3638 else
6c5ef620 3639 rx_reg &= ~I40E_QRX_ENA_QENA_REQ_MASK;
41c445ff
JB		 3640 wr32(hw, I40E_QRX_ENA(pf_q), rx_reg);
3641
3642 /* wait for the change to finish */
23527308
NP		 3643 ret = i40e_pf_rxq_wait(pf, pf_q, enable);
3644 if (ret) {
3645 dev_info(&pf->pdev->dev,
3646 "%s: VSI seid %d Rx ring %d %sable timeout\n",
3647 __func__, vsi->seid, pf_q,
3648 (enable ? "en" : "dis"));
3649 break;
41c445ff
JB		 3650 }
3651 }
3652
23527308 3653 return ret;
41c445ff
JB		 3654}
3655
3656/**
3657 * i40e_vsi_control_rings - Start or stop a VSI's rings
3658 * @vsi: the VSI being configured
3659 * @enable: start or stop the rings
3660 **/
fc18eaa0 3661int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool request)
41c445ff 3662{
3b867b28 3663 int ret = 0;
41c445ff
JB		 3664
3665 /* do rx first for enable and last for disable */
3666 if (request) {
3667 ret = i40e_vsi_control_rx(vsi, request);
3668 if (ret)
3669 return ret;
3670 ret = i40e_vsi_control_tx(vsi, request);
3671 } else {
3b867b28
ASJ		 3672 /* Ignore return value, we need to shutdown whatever we can */
3673 i40e_vsi_control_tx(vsi, request);
3674 i40e_vsi_control_rx(vsi, request);
41c445ff
JB		 3675 }
3676
3677 return ret;
3678}
3679
3680/**
3681 * i40e_vsi_free_irq - Free the irq association with the OS
3682 * @vsi: the VSI being configured
3683 **/
3684static void i40e_vsi_free_irq(struct i40e_vsi *vsi)
3685{
3686 struct i40e_pf *pf = vsi->back;
3687 struct i40e_hw *hw = &pf->hw;
3688 int base = vsi->base_vector;
3689 u32 val, qp;
3690 int i;
3691
3692 if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
3693 if (!vsi->q_vectors)
3694 return;
3695
63741846
SN		 3696 if (!vsi->irqs_ready)
3697 return;
3698
3699 vsi->irqs_ready = false;
41c445ff
JB		 3700 for (i = 0; i < vsi->num_q_vectors; i++) {
3701 u16 vector = i + base;
3702
3703 /* free only the irqs that were actually requested */
78681b1f
SN		 3704 if (!vsi->q_vectors[i] ||
3705 !vsi->q_vectors[i]->num_ringpairs)
41c445ff
JB		 3706 continue;
3707
3708 /* clear the affinity_mask in the IRQ descriptor */
3709 irq_set_affinity_hint(pf->msix_entries[vector].vector,
3710 NULL);
3711 free_irq(pf->msix_entries[vector].vector,
493fb300 3712 vsi->q_vectors[i]);
41c445ff
JB		 3713
3714 /* Tear down the interrupt queue link list
3715 *
3716 * We know that they come in pairs and always
3717 * the Rx first, then the Tx. To clear the
3718 * link list, stick the EOL value into the
3719 * next_q field of the registers.
3720 */
3721 val = rd32(hw, I40E_PFINT_LNKLSTN(vector - 1));
3722 qp = (val & I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK)
3723 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT;
3724 val |= I40E_QUEUE_END_OF_LIST
3725 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT;
3726 wr32(hw, I40E_PFINT_LNKLSTN(vector - 1), val);
3727
3728 while (qp != I40E_QUEUE_END_OF_LIST) {
3729 u32 next;
3730
3731 val = rd32(hw, I40E_QINT_RQCTL(qp));
3732
3733 val &= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK |
3734 I40E_QINT_RQCTL_MSIX0_INDX_MASK |
3735 I40E_QINT_RQCTL_CAUSE_ENA_MASK |
3736 I40E_QINT_RQCTL_INTEVENT_MASK);
3737
3738 val |= (I40E_QINT_RQCTL_ITR_INDX_MASK |
3739 I40E_QINT_RQCTL_NEXTQ_INDX_MASK);
3740
3741 wr32(hw, I40E_QINT_RQCTL(qp), val);
3742
3743 val = rd32(hw, I40E_QINT_TQCTL(qp));
3744
3745 next = (val & I40E_QINT_TQCTL_NEXTQ_INDX_MASK)
3746 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT;
3747
3748 val &= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK |
3749 I40E_QINT_TQCTL_MSIX0_INDX_MASK |
3750 I40E_QINT_TQCTL_CAUSE_ENA_MASK |
3751 I40E_QINT_TQCTL_INTEVENT_MASK);
3752
3753 val |= (I40E_QINT_TQCTL_ITR_INDX_MASK |
3754 I40E_QINT_TQCTL_NEXTQ_INDX_MASK);
3755
3756 wr32(hw, I40E_QINT_TQCTL(qp), val);
3757 qp = next;
3758 }
3759 }
3760 } else {
3761 free_irq(pf->pdev->irq, pf);
3762
3763 val = rd32(hw, I40E_PFINT_LNKLST0);
3764 qp = (val & I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK)
3765 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT;
3766 val |= I40E_QUEUE_END_OF_LIST
3767 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT;
3768 wr32(hw, I40E_PFINT_LNKLST0, val);
3769
3770 val = rd32(hw, I40E_QINT_RQCTL(qp));
3771 val &= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK |
3772 I40E_QINT_RQCTL_MSIX0_INDX_MASK |
3773 I40E_QINT_RQCTL_CAUSE_ENA_MASK |
3774 I40E_QINT_RQCTL_INTEVENT_MASK);
3775
3776 val |= (I40E_QINT_RQCTL_ITR_INDX_MASK |
3777 I40E_QINT_RQCTL_NEXTQ_INDX_MASK);
3778
3779 wr32(hw, I40E_QINT_RQCTL(qp), val);
3780
3781 val = rd32(hw, I40E_QINT_TQCTL(qp));
3782
3783 val &= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK |
3784 I40E_QINT_TQCTL_MSIX0_INDX_MASK |
3785 I40E_QINT_TQCTL_CAUSE_ENA_MASK |
3786 I40E_QINT_TQCTL_INTEVENT_MASK);
3787
3788 val |= (I40E_QINT_TQCTL_ITR_INDX_MASK |
3789 I40E_QINT_TQCTL_NEXTQ_INDX_MASK);
3790
3791 wr32(hw, I40E_QINT_TQCTL(qp), val);
3792 }
3793}
3794
493fb300
AD		 3795/**
3796 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3797 * @vsi: the VSI being configured
3798 * @v_idx: Index of vector to be freed
3799 *
3800 * This function frees the memory allocated to the q_vector. In addition if
3801 * NAPI is enabled it will delete any references to the NAPI struct prior
3802 * to freeing the q_vector.
3803 **/
3804static void i40e_free_q_vector(struct i40e_vsi *vsi, int v_idx)
3805{
3806 struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx];
cd0b6fa6 3807 struct i40e_ring *ring;
493fb300
AD		 3808
3809 if (!q_vector)
3810 return;
3811
3812 /* disassociate q_vector from rings */
cd0b6fa6
AD		 3813 i40e_for_each_ring(ring, q_vector->tx)
3814 ring->q_vector = NULL;
3815
3816 i40e_for_each_ring(ring, q_vector->rx)
3817 ring->q_vector = NULL;
493fb300
AD		 3818
3819 /* only VSI w/ an associated netdev is set up w/ NAPI */
3820 if (vsi->netdev)
3821 netif_napi_del(&q_vector->napi);
3822
3823 vsi->q_vectors[v_idx] = NULL;
3824
3825 kfree_rcu(q_vector, rcu);
3826}
3827
41c445ff
JB		 3828/**
3829 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3830 * @vsi: the VSI being un-configured
3831 *
3832 * This frees the memory allocated to the q_vectors and
3833 * deletes references to the NAPI struct.
3834 **/
3835static void i40e_vsi_free_q_vectors(struct i40e_vsi *vsi)
3836{
3837 int v_idx;
3838
493fb300
AD		 3839 for (v_idx = 0; v_idx < vsi->num_q_vectors; v_idx++)
3840 i40e_free_q_vector(vsi, v_idx);
41c445ff
JB		 3841}
3842
3843/**
3844 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3845 * @pf: board private structure
3846 **/
3847static void i40e_reset_interrupt_capability(struct i40e_pf *pf)
3848{
3849 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3850 if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
3851 pci_disable_msix(pf->pdev);
3852 kfree(pf->msix_entries);
3853 pf->msix_entries = NULL;
3b444399
SN		 3854 kfree(pf->irq_pile);
3855 pf->irq_pile = NULL;
41c445ff
JB		 3856 } else if (pf->flags & I40E_FLAG_MSI_ENABLED) {
3857 pci_disable_msi(pf->pdev);
3858 }
3859 pf->flags &= ~(I40E_FLAG_MSIX_ENABLED | I40E_FLAG_MSI_ENABLED);
3860}
3861
3862/**
3863 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3864 * @pf: board private structure
3865 *
3866 * We go through and clear interrupt specific resources and reset the structure
3867 * to pre-load conditions
3868 **/
3869static void i40e_clear_interrupt_scheme(struct i40e_pf *pf)
3870{
3871 int i;
3872
e147758d
SN		 3873 i40e_stop_misc_vector(pf);
3874 if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
3875 synchronize_irq(pf->msix_entries[0].vector);
3876 free_irq(pf->msix_entries[0].vector, pf);
3877 }
3878
41c445ff 3879 i40e_put_lump(pf->irq_pile, 0, I40E_PILE_VALID_BIT-1);
505682cd 3880 for (i = 0; i < pf->num_alloc_vsi; i++)
41c445ff
JB		 3881 if (pf->vsi[i])
3882 i40e_vsi_free_q_vectors(pf->vsi[i]);
3883 i40e_reset_interrupt_capability(pf);
3884}
3885
3886/**
3887 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3888 * @vsi: the VSI being configured
3889 **/
3890static void i40e_napi_enable_all(struct i40e_vsi *vsi)
3891{
3892 int q_idx;
3893
3894 if (!vsi->netdev)
3895 return;
3896
3897 for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++)
493fb300 3898 napi_enable(&vsi->q_vectors[q_idx]->napi);
41c445ff
JB		 3899}
3900
3901/**
3902 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
3903 * @vsi: the VSI being configured
3904 **/
3905static void i40e_napi_disable_all(struct i40e_vsi *vsi)
3906{
3907 int q_idx;
3908
3909 if (!vsi->netdev)
3910 return;
3911
3912 for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++)
493fb300 3913 napi_disable(&vsi->q_vectors[q_idx]->napi);
41c445ff
JB		 3914}
3915
90ef8d47
SN		 3916/**
3917 * i40e_vsi_close - Shut down a VSI
3918 * @vsi: the vsi to be quelled
3919 **/
3920static void i40e_vsi_close(struct i40e_vsi *vsi)
3921{
3922 if (!test_and_set_bit(__I40E_DOWN, &vsi->state))
3923 i40e_down(vsi);
3924 i40e_vsi_free_irq(vsi);
3925 i40e_vsi_free_tx_resources(vsi);
3926 i40e_vsi_free_rx_resources(vsi);
3927}
3928
41c445ff
JB		 3929/**
3930 * i40e_quiesce_vsi - Pause a given VSI
3931 * @vsi: the VSI being paused
3932 **/
3933static void i40e_quiesce_vsi(struct i40e_vsi *vsi)
3934{
3935 if (test_bit(__I40E_DOWN, &vsi->state))
3936 return;
3937
d341b7a5
NP		 3938 /* No need to disable FCoE VSI when Tx suspended */
3939 if ((test_bit(__I40E_PORT_TX_SUSPENDED, &vsi->back->state)) &&
3940 vsi->type == I40E_VSI_FCOE) {
3941 dev_dbg(&vsi->back->pdev->dev,
3942 "%s: VSI seid %d skipping FCoE VSI disable\n",
3943 __func__, vsi->seid);
3944 return;
3945 }
3946
41c445ff
JB		 3947 set_bit(__I40E_NEEDS_RESTART, &vsi->state);
3948 if (vsi->netdev && netif_running(vsi->netdev)) {
3949 vsi->netdev->netdev_ops->ndo_stop(vsi->netdev);
3950 } else {
90ef8d47 3951 i40e_vsi_close(vsi);
41c445ff
JB		 3952 }
3953}
3954
3955/**
3956 * i40e_unquiesce_vsi - Resume a given VSI
3957 * @vsi: the VSI being resumed
3958 **/
3959static void i40e_unquiesce_vsi(struct i40e_vsi *vsi)
3960{
3961 if (!test_bit(__I40E_NEEDS_RESTART, &vsi->state))
3962 return;
3963
3964 clear_bit(__I40E_NEEDS_RESTART, &vsi->state);
3965 if (vsi->netdev && netif_running(vsi->netdev))
3966 vsi->netdev->netdev_ops->ndo_open(vsi->netdev);
3967 else
8276f757 3968 i40e_vsi_open(vsi); /* this clears the DOWN bit */
41c445ff
JB		 3969}
3970
3971/**
3972 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
3973 * @pf: the PF
3974 **/
3975static void i40e_pf_quiesce_all_vsi(struct i40e_pf *pf)
3976{
3977 int v;
3978
505682cd 3979 for (v = 0; v < pf->num_alloc_vsi; v++) {
41c445ff
JB		 3980 if (pf->vsi[v])
3981 i40e_quiesce_vsi(pf->vsi[v]);
3982 }
3983}
3984
3985/**
3986 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
3987 * @pf: the PF
3988 **/
3989static void i40e_pf_unquiesce_all_vsi(struct i40e_pf *pf)
3990{
3991 int v;
3992
505682cd 3993 for (v = 0; v < pf->num_alloc_vsi; v++) {
41c445ff
JB		 3994 if (pf->vsi[v])
3995 i40e_unquiesce_vsi(pf->vsi[v]);
3996 }
3997}
3998
69129dc3
NP		 3999#ifdef CONFIG_I40E_DCB
4000/**
4001 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
4002 * @vsi: the VSI being configured
4003 *
4004 * This function waits for the given VSI's Tx queues to be disabled.
4005 **/
4006static int i40e_vsi_wait_txq_disabled(struct i40e_vsi *vsi)
4007{
4008 struct i40e_pf *pf = vsi->back;
4009 int i, pf_q, ret;
4010
4011 pf_q = vsi->base_queue;
4012 for (i = 0; i < vsi->num_queue_pairs; i++, pf_q++) {
4013 /* Check and wait for the disable status of the queue */
4014 ret = i40e_pf_txq_wait(pf, pf_q, false);
4015 if (ret) {
4016 dev_info(&pf->pdev->dev,
4017 "%s: VSI seid %d Tx ring %d disable timeout\n",
4018 __func__, vsi->seid, pf_q);
4019 return ret;
4020 }
4021 }
4022
4023 return 0;
4024}
4025
4026/**
4027 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4028 * @pf: the PF
4029 *
4030 * This function waits for the Tx queues to be in disabled state for all the
4031 * VSIs that are managed by this PF.
4032 **/
4033static int i40e_pf_wait_txq_disabled(struct i40e_pf *pf)
4034{
4035 int v, ret = 0;
4036
4037 for (v = 0; v < pf->hw.func_caps.num_vsis; v++) {
d341b7a5
NP		 4038 /* No need to wait for FCoE VSI queues */
4039 if (pf->vsi[v] && pf->vsi[v]->type != I40E_VSI_FCOE) {
69129dc3
NP		 4040 ret = i40e_vsi_wait_txq_disabled(pf->vsi[v]);
4041 if (ret)
4042 break;
4043 }
4044 }
4045
4046 return ret;
4047}
4048
4049#endif
63d7e5a4
NP		 4050/**
4051 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
b40c82e6 4052 * @pf: pointer to PF
63d7e5a4
NP		 4053 *
4054 * Get TC map for ISCSI PF type that will include iSCSI TC
4055 * and LAN TC.
4056 **/
4057static u8 i40e_get_iscsi_tc_map(struct i40e_pf *pf)
4058{
4059 struct i40e_dcb_app_priority_table app;
4060 struct i40e_hw *hw = &pf->hw;
4061 u8 enabled_tc = 1; /* TC0 is always enabled */
4062 u8 tc, i;
4063 /* Get the iSCSI APP TLV */
4064 struct i40e_dcbx_config *dcbcfg = &hw->local_dcbx_config;
4065
4066 for (i = 0; i < dcbcfg->numapps; i++) {
4067 app = dcbcfg->app[i];
4068 if (app.selector == I40E_APP_SEL_TCPIP &&
4069 app.protocolid == I40E_APP_PROTOID_ISCSI) {
4070 tc = dcbcfg->etscfg.prioritytable[app.priority];
4071 enabled_tc |= (1 << tc);
4072 break;
4073 }
4074 }
4075
4076 return enabled_tc;
4077}
4078
41c445ff
JB		 4079/**
4080 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4081 * @dcbcfg: the corresponding DCBx configuration structure
4082 *
4083 * Return the number of TCs from given DCBx configuration
4084 **/
4085static u8 i40e_dcb_get_num_tc(struct i40e_dcbx_config *dcbcfg)
4086{
078b5876
JB		 4087 u8 num_tc = 0;
4088 int i;
41c445ff
JB		 4089
4090 /* Scan the ETS Config Priority Table to find
4091 * traffic class enabled for a given priority
4092 * and use the traffic class index to get the
4093 * number of traffic classes enabled
4094 */
4095 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
4096 if (dcbcfg->etscfg.prioritytable[i] > num_tc)
4097 num_tc = dcbcfg->etscfg.prioritytable[i];
4098 }
4099
4100 /* Traffic class index starts from zero so
4101 * increment to return the actual count
4102 */
078b5876 4103 return num_tc + 1;
41c445ff
JB		 4104}
4105
4106/**
4107 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4108 * @dcbcfg: the corresponding DCBx configuration structure
4109 *
4110 * Query the current DCB configuration and return the number of
4111 * traffic classes enabled from the given DCBX config
4112 **/
4113static u8 i40e_dcb_get_enabled_tc(struct i40e_dcbx_config *dcbcfg)
4114{
4115 u8 num_tc = i40e_dcb_get_num_tc(dcbcfg);
4116 u8 enabled_tc = 1;
4117 u8 i;
4118
4119 for (i = 0; i < num_tc; i++)
4120 enabled_tc |= 1 << i;
4121
4122 return enabled_tc;
4123}
4124
4125/**
4126 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4127 * @pf: PF being queried
4128 *
4129 * Return number of traffic classes enabled for the given PF
4130 **/
4131static u8 i40e_pf_get_num_tc(struct i40e_pf *pf)
4132{
4133 struct i40e_hw *hw = &pf->hw;
4134 u8 i, enabled_tc;
4135 u8 num_tc = 0;
4136 struct i40e_dcbx_config *dcbcfg = &hw->local_dcbx_config;
4137
4138 /* If DCB is not enabled then always in single TC */
4139 if (!(pf->flags & I40E_FLAG_DCB_ENABLED))
4140 return 1;
4141
63d7e5a4
NP		 4142 /* SFP mode will be enabled for all TCs on port */
4143 if (!(pf->flags & I40E_FLAG_MFP_ENABLED))
4144 return i40e_dcb_get_num_tc(dcbcfg);
4145
41c445ff 4146 /* MFP mode return count of enabled TCs for this PF */
63d7e5a4
NP		 4147 if (pf->hw.func_caps.iscsi)
4148 enabled_tc = i40e_get_iscsi_tc_map(pf);
4149 else
fc51de96 4150 return 1; /* Only TC0 */
41c445ff 4151
63d7e5a4
NP		 4152 /* At least have TC0 */
4153 enabled_tc = (enabled_tc ? enabled_tc : 0x1);
4154 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
4155 if (enabled_tc & (1 << i))
4156 num_tc++;
4157 }
4158 return num_tc;
41c445ff
JB		 4159}
4160
4161/**
4162 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4163 * @pf: PF being queried
4164 *
4165 * Return a bitmap for first enabled traffic class for this PF.
4166 **/
4167static u8 i40e_pf_get_default_tc(struct i40e_pf *pf)
4168{
4169 u8 enabled_tc = pf->hw.func_caps.enabled_tcmap;
4170 u8 i = 0;
4171
4172 if (!enabled_tc)
4173 return 0x1; /* TC0 */
4174
4175 /* Find the first enabled TC */
4176 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
4177 if (enabled_tc & (1 << i))
4178 break;
4179 }
4180
4181 return 1 << i;
4182}
4183
4184/**
4185 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4186 * @pf: PF being queried
4187 *
4188 * Return a bitmap for enabled traffic classes for this PF.
4189 **/
4190static u8 i40e_pf_get_tc_map(struct i40e_pf *pf)
4191{
4192 /* If DCB is not enabled for this PF then just return default TC */
4193 if (!(pf->flags & I40E_FLAG_DCB_ENABLED))
4194 return i40e_pf_get_default_tc(pf);
4195
41c445ff 4196 /* SFP mode we want PF to be enabled for all TCs */
63d7e5a4
NP		 4197 if (!(pf->flags & I40E_FLAG_MFP_ENABLED))
4198 return i40e_dcb_get_enabled_tc(&pf->hw.local_dcbx_config);
4199
fc51de96 4200 /* MFP enabled and iSCSI PF type */
63d7e5a4
NP		 4201 if (pf->hw.func_caps.iscsi)
4202 return i40e_get_iscsi_tc_map(pf);
4203 else
fc51de96 4204 return i40e_pf_get_default_tc(pf);
41c445ff
JB		 4205}
4206
4207/**
4208 * i40e_vsi_get_bw_info - Query VSI BW Information
4209 * @vsi: the VSI being queried
4210 *
4211 * Returns 0 on success, negative value on failure
4212 **/
4213static int i40e_vsi_get_bw_info(struct i40e_vsi *vsi)
4214{
4215 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config = {0};
4216 struct i40e_aqc_query_vsi_bw_config_resp bw_config = {0};
4217 struct i40e_pf *pf = vsi->back;
4218 struct i40e_hw *hw = &pf->hw;
dcae29be 4219 i40e_status aq_ret;
41c445ff 4220 u32 tc_bw_max;
41c445ff
JB		 4221 int i;
4222
4223 /* Get the VSI level BW configuration */
dcae29be
JB		 4224 aq_ret = i40e_aq_query_vsi_bw_config(hw, vsi->seid, &bw_config, NULL);
4225 if (aq_ret) {
41c445ff 4226 dev_info(&pf->pdev->dev,
b40c82e6 4227 "couldn't get PF vsi bw config, err %d, aq_err %d\n",
dcae29be
JB		 4228 aq_ret, pf->hw.aq.asq_last_status);
4229 return -EINVAL;
41c445ff
JB		 4230 }
4231
4232 /* Get the VSI level BW configuration per TC */
dcae29be 4233 aq_ret = i40e_aq_query_vsi_ets_sla_config(hw, vsi->seid, &bw_ets_config,
6838b535 4234 NULL);
dcae29be 4235 if (aq_ret) {
41c445ff 4236 dev_info(&pf->pdev->dev,
b40c82e6 4237 "couldn't get PF vsi ets bw config, err %d, aq_err %d\n",
dcae29be
JB		 4238 aq_ret, pf->hw.aq.asq_last_status);
4239 return -EINVAL;
41c445ff
JB		 4240 }
4241
4242 if (bw_config.tc_valid_bits != bw_ets_config.tc_valid_bits) {
4243 dev_info(&pf->pdev->dev,
4244 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4245 bw_config.tc_valid_bits,
4246 bw_ets_config.tc_valid_bits);
4247 /* Still continuing */
4248 }
4249
4250 vsi->bw_limit = le16_to_cpu(bw_config.port_bw_limit);
4251 vsi->bw_max_quanta = bw_config.max_bw;
4252 tc_bw_max = le16_to_cpu(bw_ets_config.tc_bw_max[0]) |
4253 (le16_to_cpu(bw_ets_config.tc_bw_max[1]) << 16);
4254 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
4255 vsi->bw_ets_share_credits[i] = bw_ets_config.share_credits[i];
4256 vsi->bw_ets_limit_credits[i] =
4257 le16_to_cpu(bw_ets_config.credits[i]);
4258 /* 3 bits out of 4 for each TC */
4259 vsi->bw_ets_max_quanta[i] = (u8)((tc_bw_max >> (i*4)) & 0x7);
4260 }
078b5876 4261
dcae29be 4262 return 0;
41c445ff
JB		 4263}
4264
4265/**
4266 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4267 * @vsi: the VSI being configured
4268 * @enabled_tc: TC bitmap
4269 * @bw_credits: BW shared credits per TC
4270 *
4271 * Returns 0 on success, negative value on failure
4272 **/
dcae29be 4273static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi, u8 enabled_tc,
41c445ff
JB		 4274 u8 *bw_share)
4275{
4276 struct i40e_aqc_configure_vsi_tc_bw_data bw_data;
dcae29be
JB		 4277 i40e_status aq_ret;
4278 int i;
41c445ff
JB		 4279
4280 bw_data.tc_valid_bits = enabled_tc;
4281 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
4282 bw_data.tc_bw_credits[i] = bw_share[i];
4283
dcae29be
JB		 4284 aq_ret = i40e_aq_config_vsi_tc_bw(&vsi->back->hw, vsi->seid, &bw_data,
4285 NULL);
4286 if (aq_ret) {
41c445ff 4287 dev_info(&vsi->back->pdev->dev,
69bfb110
JB		 4288 "AQ command Config VSI BW allocation per TC failed = %d\n",
4289 vsi->back->hw.aq.asq_last_status);
dcae29be 4290 return -EINVAL;
41c445ff
JB		 4291 }
4292
4293 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
4294 vsi->info.qs_handle[i] = bw_data.qs_handles[i];
4295
dcae29be 4296 return 0;
41c445ff
JB		 4297}
4298
4299/**
4300 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4301 * @vsi: the VSI being configured
4302 * @enabled_tc: TC map to be enabled
4303 *
4304 **/
4305static void i40e_vsi_config_netdev_tc(struct i40e_vsi *vsi, u8 enabled_tc)
4306{
4307 struct net_device *netdev = vsi->netdev;
4308 struct i40e_pf *pf = vsi->back;
4309 struct i40e_hw *hw = &pf->hw;
4310 u8 netdev_tc = 0;
4311 int i;
4312 struct i40e_dcbx_config *dcbcfg = &hw->local_dcbx_config;
4313
4314 if (!netdev)
4315 return;
4316
4317 if (!enabled_tc) {
4318 netdev_reset_tc(netdev);
4319 return;
4320 }
4321
4322 /* Set up actual enabled TCs on the VSI */
4323 if (netdev_set_num_tc(netdev, vsi->tc_config.numtc))
4324 return;
4325
4326 /* set per TC queues for the VSI */
4327 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
4328 /* Only set TC queues for enabled tcs
4329 *
4330 * e.g. For a VSI that has TC0 and TC3 enabled the
4331 * enabled_tc bitmap would be 0x00001001; the driver
4332 * will set the numtc for netdev as 2 that will be
4333 * referenced by the netdev layer as TC 0 and 1.
4334 */
4335 if (vsi->tc_config.enabled_tc & (1 << i))
4336 netdev_set_tc_queue(netdev,
4337 vsi->tc_config.tc_info[i].netdev_tc,
4338 vsi->tc_config.tc_info[i].qcount,
4339 vsi->tc_config.tc_info[i].qoffset);
4340 }
4341
4342 /* Assign UP2TC map for the VSI */
4343 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
4344 /* Get the actual TC# for the UP */
4345 u8 ets_tc = dcbcfg->etscfg.prioritytable[i];
4346 /* Get the mapped netdev TC# for the UP */
4347 netdev_tc = vsi->tc_config.tc_info[ets_tc].netdev_tc;
4348 netdev_set_prio_tc_map(netdev, i, netdev_tc);
4349 }
4350}
4351
4352/**
4353 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4354 * @vsi: the VSI being configured
4355 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4356 **/
4357static void i40e_vsi_update_queue_map(struct i40e_vsi *vsi,
4358 struct i40e_vsi_context *ctxt)
4359{
4360 /* copy just the sections touched not the entire info
4361 * since not all sections are valid as returned by
4362 * update vsi params
4363 */
4364 vsi->info.mapping_flags = ctxt->info.mapping_flags;
4365 memcpy(&vsi->info.queue_mapping,
4366 &ctxt->info.queue_mapping, sizeof(vsi->info.queue_mapping));
4367 memcpy(&vsi->info.tc_mapping, ctxt->info.tc_mapping,
4368 sizeof(vsi->info.tc_mapping));
4369}
4370
4371/**
4372 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4373 * @vsi: VSI to be configured
4374 * @enabled_tc: TC bitmap
4375 *
4376 * This configures a particular VSI for TCs that are mapped to the
4377 * given TC bitmap. It uses default bandwidth share for TCs across
4378 * VSIs to configure TC for a particular VSI.
4379 *
4380 * NOTE:
4381 * It is expected that the VSI queues have been quisced before calling
4382 * this function.
4383 **/
4384static int i40e_vsi_config_tc(struct i40e_vsi *vsi, u8 enabled_tc)
4385{
4386 u8 bw_share[I40E_MAX_TRAFFIC_CLASS] = {0};
4387 struct i40e_vsi_context ctxt;
4388 int ret = 0;
4389 int i;
4390
4391 /* Check if enabled_tc is same as existing or new TCs */
4392 if (vsi->tc_config.enabled_tc == enabled_tc)
4393 return ret;
4394
4395 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4396 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
4397 if (enabled_tc & (1 << i))
4398 bw_share[i] = 1;
4399 }
4400
4401 ret = i40e_vsi_configure_bw_alloc(vsi, enabled_tc, bw_share);
4402 if (ret) {
4403 dev_info(&vsi->back->pdev->dev,
4404 "Failed configuring TC map %d for VSI %d\n",
4405 enabled_tc, vsi->seid);
4406 goto out;
4407 }
4408
4409 /* Update Queue Pairs Mapping for currently enabled UPs */
4410 ctxt.seid = vsi->seid;
4411 ctxt.pf_num = vsi->back->hw.pf_id;
4412 ctxt.vf_num = 0;
4413 ctxt.uplink_seid = vsi->uplink_seid;
1a2f6248 4414 ctxt.info = vsi->info;
41c445ff
JB		 4415 i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, false);
4416
4417 /* Update the VSI after updating the VSI queue-mapping information */
4418 ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
4419 if (ret) {
4420 dev_info(&vsi->back->pdev->dev,
4421 "update vsi failed, aq_err=%d\n",
4422 vsi->back->hw.aq.asq_last_status);
4423 goto out;
4424 }
4425 /* update the local VSI info with updated queue map */
4426 i40e_vsi_update_queue_map(vsi, &ctxt);
4427 vsi->info.valid_sections = 0;
4428
4429 /* Update current VSI BW information */
4430 ret = i40e_vsi_get_bw_info(vsi);
4431 if (ret) {
4432 dev_info(&vsi->back->pdev->dev,
4433 "Failed updating vsi bw info, aq_err=%d\n",
4434 vsi->back->hw.aq.asq_last_status);
4435 goto out;
4436 }
4437
4438 /* Update the netdev TC setup */
4439 i40e_vsi_config_netdev_tc(vsi, enabled_tc);
4440out:
4441 return ret;
4442}
4443
4e3b35b0
NP		 4444/**
4445 * i40e_veb_config_tc - Configure TCs for given VEB
4446 * @veb: given VEB
4447 * @enabled_tc: TC bitmap
4448 *
4449 * Configures given TC bitmap for VEB (switching) element
4450 **/
4451int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc)
4452{
4453 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data = {0};
4454 struct i40e_pf *pf = veb->pf;
4455 int ret = 0;
4456 int i;
4457
4458 /* No TCs or already enabled TCs just return */
4459 if (!enabled_tc || veb->enabled_tc == enabled_tc)
4460 return ret;
4461
4462 bw_data.tc_valid_bits = enabled_tc;
4463 /* bw_data.absolute_credits is not set (relative) */
4464
4465 /* Enable ETS TCs with equal BW Share for now */
4466 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
4467 if (enabled_tc & (1 << i))
4468 bw_data.tc_bw_share_credits[i] = 1;
4469 }
4470
4471 ret = i40e_aq_config_switch_comp_bw_config(&pf->hw, veb->seid,
4472 &bw_data, NULL);
4473 if (ret) {
4474 dev_info(&pf->pdev->dev,
4475 "veb bw config failed, aq_err=%d\n",
4476 pf->hw.aq.asq_last_status);
4477 goto out;
4478 }
4479
4480 /* Update the BW information */
4481 ret = i40e_veb_get_bw_info(veb);
4482 if (ret) {
4483 dev_info(&pf->pdev->dev,
4484 "Failed getting veb bw config, aq_err=%d\n",
4485 pf->hw.aq.asq_last_status);
4486 }
4487
4488out:
4489 return ret;
4490}
4491
4492#ifdef CONFIG_I40E_DCB
4493/**
4494 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4495 * @pf: PF struct
4496 *
4497 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4498 * the caller would've quiesce all the VSIs before calling
4499 * this function
4500 **/
4501static void i40e_dcb_reconfigure(struct i40e_pf *pf)
4502{
4503 u8 tc_map = 0;
4504 int ret;
4505 u8 v;
4506
4507 /* Enable the TCs available on PF to all VEBs */
4508 tc_map = i40e_pf_get_tc_map(pf);
4509 for (v = 0; v < I40E_MAX_VEB; v++) {
4510 if (!pf->veb[v])
4511 continue;
4512 ret = i40e_veb_config_tc(pf->veb[v], tc_map);
4513 if (ret) {
4514 dev_info(&pf->pdev->dev,
4515 "Failed configuring TC for VEB seid=%d\n",
4516 pf->veb[v]->seid);
4517 /* Will try to configure as many components */
4518 }
4519 }
4520
4521 /* Update each VSI */
505682cd 4522 for (v = 0; v < pf->num_alloc_vsi; v++) {
4e3b35b0
NP		 4523 if (!pf->vsi[v])
4524 continue;
4525
4526 /* - Enable all TCs for the LAN VSI
38e00438
VD		 4527#ifdef I40E_FCOE
4528 * - For FCoE VSI only enable the TC configured
4529 * as per the APP TLV
4530#endif
4e3b35b0
NP		 4531 * - For all others keep them at TC0 for now
4532 */
4533 if (v == pf->lan_vsi)
4534 tc_map = i40e_pf_get_tc_map(pf);
4535 else
4536 tc_map = i40e_pf_get_default_tc(pf);
38e00438
VD		 4537#ifdef I40E_FCOE
4538 if (pf->vsi[v]->type == I40E_VSI_FCOE)
4539 tc_map = i40e_get_fcoe_tc_map(pf);
4540#endif /* #ifdef I40E_FCOE */
4e3b35b0
NP		 4541
4542 ret = i40e_vsi_config_tc(pf->vsi[v], tc_map);
4543 if (ret) {
4544 dev_info(&pf->pdev->dev,
4545 "Failed configuring TC for VSI seid=%d\n",
4546 pf->vsi[v]->seid);
4547 /* Will try to configure as many components */
4548 } else {
0672a091
NP		 4549 /* Re-configure VSI vectors based on updated TC map */
4550 i40e_vsi_map_rings_to_vectors(pf->vsi[v]);
4e3b35b0
NP		 4551 if (pf->vsi[v]->netdev)
4552 i40e_dcbnl_set_all(pf->vsi[v]);
4553 }
4554 }
4555}
4556
2fd75f31
NP		 4557/**
4558 * i40e_resume_port_tx - Resume port Tx
4559 * @pf: PF struct
4560 *
4561 * Resume a port's Tx and issue a PF reset in case of failure to
4562 * resume.
4563 **/
4564static int i40e_resume_port_tx(struct i40e_pf *pf)
4565{
4566 struct i40e_hw *hw = &pf->hw;
4567 int ret;
4568
4569 ret = i40e_aq_resume_port_tx(hw, NULL);
4570 if (ret) {
4571 dev_info(&pf->pdev->dev,
4572 "AQ command Resume Port Tx failed = %d\n",
4573 pf->hw.aq.asq_last_status);
4574 /* Schedule PF reset to recover */
4575 set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
4576 i40e_service_event_schedule(pf);
4577 }
4578
4579 return ret;
4580}
4581
4e3b35b0
NP		 4582/**
4583 * i40e_init_pf_dcb - Initialize DCB configuration
4584 * @pf: PF being configured
4585 *
4586 * Query the current DCB configuration and cache it
4587 * in the hardware structure
4588 **/
4589static int i40e_init_pf_dcb(struct i40e_pf *pf)
4590{
4591 struct i40e_hw *hw = &pf->hw;
4592 int err = 0;
4593
025b4a54
ASJ		 4594 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
4595 if (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 33)) ||
4596 (pf->hw.aq.fw_maj_ver < 4))
4597 goto out;
4598
4e3b35b0
NP		 4599 /* Get the initial DCB configuration */
4600 err = i40e_init_dcb(hw);
4601 if (!err) {
4602 /* Device/Function is not DCBX capable */
4603 if ((!hw->func_caps.dcb) ||
4604 (hw->dcbx_status == I40E_DCBX_STATUS_DISABLED)) {
4605 dev_info(&pf->pdev->dev,
4606 "DCBX offload is not supported or is disabled for this PF.\n");
4607
4608 if (pf->flags & I40E_FLAG_MFP_ENABLED)
4609 goto out;
4610
4611 } else {
4612 /* When status is not DISABLED then DCBX in FW */
4613 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
4614 DCB_CAP_DCBX_VER_IEEE;
4d9b6043
NP		 4615
4616 pf->flags |= I40E_FLAG_DCB_CAPABLE;
4617 /* Enable DCB tagging only when more than one TC */
4618 if (i40e_dcb_get_num_tc(&hw->local_dcbx_config) > 1)
4619 pf->flags |= I40E_FLAG_DCB_ENABLED;
9fa61dd2
NP		 4620 dev_dbg(&pf->pdev->dev,
4621 "DCBX offload is supported for this PF.\n");
4e3b35b0 4622 }
014269ff 4623 } else {
aebfc816
SN		 4624 dev_info(&pf->pdev->dev,
4625 "AQ Querying DCB configuration failed: aq_err %d\n",
014269ff 4626 pf->hw.aq.asq_last_status);
4e3b35b0
NP		 4627 }
4628
4629out:
4630 return err;
4631}
4632#endif /* CONFIG_I40E_DCB */
cf05ed08
JB		 4633#define SPEED_SIZE 14
4634#define FC_SIZE 8
4635/**
4636 * i40e_print_link_message - print link up or down
4637 * @vsi: the VSI for which link needs a message
4638 */
4639static void i40e_print_link_message(struct i40e_vsi *vsi, bool isup)
4640{
4641 char speed[SPEED_SIZE] = "Unknown";
4642 char fc[FC_SIZE] = "RX/TX";
4643
4644 if (!isup) {
4645 netdev_info(vsi->netdev, "NIC Link is Down\n");
4646 return;
4647 }
4648
148c2d80
GR		 4649 /* Warn user if link speed on NPAR enabled partition is not at
4650 * least 10GB
4651 */
4652 if (vsi->back->hw.func_caps.npar_enable &&
4653 (vsi->back->hw.phy.link_info.link_speed == I40E_LINK_SPEED_1GB ||
4654 vsi->back->hw.phy.link_info.link_speed == I40E_LINK_SPEED_100MB))
4655 netdev_warn(vsi->netdev,
4656 "The partition detected link speed that is less than 10Gbps\n");
4657
cf05ed08
JB		 4658 switch (vsi->back->hw.phy.link_info.link_speed) {
4659 case I40E_LINK_SPEED_40GB:
35a7d804 4660 strlcpy(speed, "40 Gbps", SPEED_SIZE);
cf05ed08 4661 break;
ae24b409
JB		 4662 case I40E_LINK_SPEED_20GB:
4663 strncpy(speed, "20 Gbps", SPEED_SIZE);
4664 break;
cf05ed08 4665 case I40E_LINK_SPEED_10GB:
35a7d804 4666 strlcpy(speed, "10 Gbps", SPEED_SIZE);
cf05ed08
JB		 4667 break;
4668 case I40E_LINK_SPEED_1GB:
35a7d804 4669 strlcpy(speed, "1000 Mbps", SPEED_SIZE);
cf05ed08 4670 break;
5960d33f
MW		 4671 case I40E_LINK_SPEED_100MB:
4672 strncpy(speed, "100 Mbps", SPEED_SIZE);
4673 break;
cf05ed08
JB		 4674 default:
4675 break;
4676 }
4677
4678 switch (vsi->back->hw.fc.current_mode) {
4679 case I40E_FC_FULL:
35a7d804 4680 strlcpy(fc, "RX/TX", FC_SIZE);
cf05ed08
JB		 4681 break;
4682 case I40E_FC_TX_PAUSE:
35a7d804 4683 strlcpy(fc, "TX", FC_SIZE);
cf05ed08
JB		 4684 break;
4685 case I40E_FC_RX_PAUSE:
35a7d804 4686 strlcpy(fc, "RX", FC_SIZE);
cf05ed08
JB		 4687 break;
4688 default:
35a7d804 4689 strlcpy(fc, "None", FC_SIZE);
cf05ed08
JB		 4690 break;
4691 }
4692
4693 netdev_info(vsi->netdev, "NIC Link is Up %s Full Duplex, Flow Control: %s\n",
4694 speed, fc);
4695}
4e3b35b0 4696
41c445ff
JB		 4697/**
4698 * i40e_up_complete - Finish the last steps of bringing up a connection
4699 * @vsi: the VSI being configured
4700 **/
4701static int i40e_up_complete(struct i40e_vsi *vsi)
4702{
4703 struct i40e_pf *pf = vsi->back;
4704 int err;
4705
4706 if (pf->flags & I40E_FLAG_MSIX_ENABLED)
4707 i40e_vsi_configure_msix(vsi);
4708 else
4709 i40e_configure_msi_and_legacy(vsi);
4710
4711 /* start rings */
4712 err = i40e_vsi_control_rings(vsi, true);
4713 if (err)
4714 return err;
4715
4716 clear_bit(__I40E_DOWN, &vsi->state);
4717 i40e_napi_enable_all(vsi);
4718 i40e_vsi_enable_irq(vsi);
4719
4720 if ((pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP) &&
4721 (vsi->netdev)) {
cf05ed08 4722 i40e_print_link_message(vsi, true);
41c445ff
JB		 4723 netif_tx_start_all_queues(vsi->netdev);
4724 netif_carrier_on(vsi->netdev);
6d779b41 4725 } else if (vsi->netdev) {
cf05ed08 4726 i40e_print_link_message(vsi, false);
7b592f61
CW		 4727 /* need to check for qualified module here*/
4728 if ((pf->hw.phy.link_info.link_info &
4729 I40E_AQ_MEDIA_AVAILABLE) &&
4730 (!(pf->hw.phy.link_info.an_info &
4731 I40E_AQ_QUALIFIED_MODULE)))
4732 netdev_err(vsi->netdev,
4733 "the driver failed to link because an unqualified module was detected.");
41c445ff 4734 }
ca64fa4e
ASJ		 4735
4736 /* replay FDIR SB filters */
1e1be8f6
ASJ		 4737 if (vsi->type == I40E_VSI_FDIR) {
4738 /* reset fd counters */
4739 pf->fd_add_err = pf->fd_atr_cnt = 0;
4740 if (pf->fd_tcp_rule > 0) {
4741 pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
4742 dev_info(&pf->pdev->dev, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4743 pf->fd_tcp_rule = 0;
4744 }
ca64fa4e 4745 i40e_fdir_filter_restore(vsi);
1e1be8f6 4746 }
41c445ff
JB		 4747 i40e_service_event_schedule(pf);
4748
4749 return 0;
4750}
4751
4752/**
4753 * i40e_vsi_reinit_locked - Reset the VSI
4754 * @vsi: the VSI being configured
4755 *
4756 * Rebuild the ring structs after some configuration
4757 * has changed, e.g. MTU size.
4758 **/
4759static void i40e_vsi_reinit_locked(struct i40e_vsi *vsi)
4760{
4761 struct i40e_pf *pf = vsi->back;
4762
4763 WARN_ON(in_interrupt());
4764 while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
4765 usleep_range(1000, 2000);
4766 i40e_down(vsi);
4767
4768 /* Give a VF some time to respond to the reset. The
4769 * two second wait is based upon the watchdog cycle in
4770 * the VF driver.
4771 */
4772 if (vsi->type == I40E_VSI_SRIOV)
4773 msleep(2000);
4774 i40e_up(vsi);
4775 clear_bit(__I40E_CONFIG_BUSY, &pf->state);
4776}
4777
4778/**
4779 * i40e_up - Bring the connection back up after being down
4780 * @vsi: the VSI being configured
4781 **/
4782int i40e_up(struct i40e_vsi *vsi)
4783{
4784 int err;
4785
4786 err = i40e_vsi_configure(vsi);
4787 if (!err)
4788 err = i40e_up_complete(vsi);
4789
4790 return err;
4791}
4792
4793/**
4794 * i40e_down - Shutdown the connection processing
4795 * @vsi: the VSI being stopped
4796 **/
4797void i40e_down(struct i40e_vsi *vsi)
4798{
4799 int i;
4800
4801 /* It is assumed that the caller of this function
4802 * sets the vsi->state __I40E_DOWN bit.
4803 */
4804 if (vsi->netdev) {
4805 netif_carrier_off(vsi->netdev);
4806 netif_tx_disable(vsi->netdev);
4807 }
4808 i40e_vsi_disable_irq(vsi);
4809 i40e_vsi_control_rings(vsi, false);
4810 i40e_napi_disable_all(vsi);
4811
4812 for (i = 0; i < vsi->num_queue_pairs; i++) {
9f65e15b
AD		 4813 i40e_clean_tx_ring(vsi->tx_rings[i]);
4814 i40e_clean_rx_ring(vsi->rx_rings[i]);
41c445ff
JB		 4815 }
4816}
4817
4818/**
4819 * i40e_setup_tc - configure multiple traffic classes
4820 * @netdev: net device to configure
4821 * @tc: number of traffic classes to enable
4822 **/
38e00438
VD		 4823#ifdef I40E_FCOE
4824int i40e_setup_tc(struct net_device *netdev, u8 tc)
4825#else
41c445ff 4826static int i40e_setup_tc(struct net_device *netdev, u8 tc)
38e00438 4827#endif
41c445ff
JB		 4828{
4829 struct i40e_netdev_priv *np = netdev_priv(netdev);
4830 struct i40e_vsi *vsi = np->vsi;
4831 struct i40e_pf *pf = vsi->back;
4832 u8 enabled_tc = 0;
4833 int ret = -EINVAL;
4834 int i;
4835
4836 /* Check if DCB enabled to continue */
4837 if (!(pf->flags & I40E_FLAG_DCB_ENABLED)) {
4838 netdev_info(netdev, "DCB is not enabled for adapter\n");
4839 goto exit;
4840 }
4841
4842 /* Check if MFP enabled */
4843 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4844 netdev_info(netdev, "Configuring TC not supported in MFP mode\n");
4845 goto exit;
4846 }
4847
4848 /* Check whether tc count is within enabled limit */
4849 if (tc > i40e_pf_get_num_tc(pf)) {
4850 netdev_info(netdev, "TC count greater than enabled on link for adapter\n");
4851 goto exit;
4852 }
4853
4854 /* Generate TC map for number of tc requested */
4855 for (i = 0; i < tc; i++)
4856 enabled_tc |= (1 << i);
4857
4858 /* Requesting same TC configuration as already enabled */
4859 if (enabled_tc == vsi->tc_config.enabled_tc)
4860 return 0;
4861
4862 /* Quiesce VSI queues */
4863 i40e_quiesce_vsi(vsi);
4864
4865 /* Configure VSI for enabled TCs */
4866 ret = i40e_vsi_config_tc(vsi, enabled_tc);
4867 if (ret) {
4868 netdev_info(netdev, "Failed configuring TC for VSI seid=%d\n",
4869 vsi->seid);
4870 goto exit;
4871 }
4872
4873 /* Unquiesce VSI */
4874 i40e_unquiesce_vsi(vsi);
4875
4876exit:
4877 return ret;
4878}
4879
4880/**
4881 * i40e_open - Called when a network interface is made active
4882 * @netdev: network interface device structure
4883 *
4884 * The open entry point is called when a network interface is made
4885 * active by the system (IFF_UP). At this point all resources needed
4886 * for transmit and receive operations are allocated, the interrupt
4887 * handler is registered with the OS, the netdev watchdog subtask is
4888 * enabled, and the stack is notified that the interface is ready.
4889 *
4890 * Returns 0 on success, negative value on failure
4891 **/
38e00438 4892int i40e_open(struct net_device *netdev)
41c445ff
JB		 4893{
4894 struct i40e_netdev_priv *np = netdev_priv(netdev);
4895 struct i40e_vsi *vsi = np->vsi;
4896 struct i40e_pf *pf = vsi->back;
41c445ff
JB		 4897 int err;
4898
4eb3f768
SN		 4899 /* disallow open during test or if eeprom is broken */
4900 if (test_bit(__I40E_TESTING, &pf->state) ||
4901 test_bit(__I40E_BAD_EEPROM, &pf->state))
41c445ff
JB		 4902 return -EBUSY;
4903
4904 netif_carrier_off(netdev);
4905
6c167f58
EK		 4906 err = i40e_vsi_open(vsi);
4907 if (err)
4908 return err;
4909
059dab69
JB		 4910 /* configure global TSO hardware offload settings */
4911 wr32(&pf->hw, I40E_GLLAN_TSOMSK_F, be32_to_cpu(TCP_FLAG_PSH |
4912 TCP_FLAG_FIN) >> 16);
4913 wr32(&pf->hw, I40E_GLLAN_TSOMSK_M, be32_to_cpu(TCP_FLAG_PSH |
4914 TCP_FLAG_FIN |
4915 TCP_FLAG_CWR) >> 16);
4916 wr32(&pf->hw, I40E_GLLAN_TSOMSK_L, be32_to_cpu(TCP_FLAG_CWR) >> 16);
4917
6c167f58
EK		 4918#ifdef CONFIG_I40E_VXLAN
4919 vxlan_get_rx_port(netdev);
4920#endif
4921
4922 return 0;
4923}
4924
4925/**
4926 * i40e_vsi_open -
4927 * @vsi: the VSI to open
4928 *
4929 * Finish initialization of the VSI.
4930 *
4931 * Returns 0 on success, negative value on failure
4932 **/
4933int i40e_vsi_open(struct i40e_vsi *vsi)
4934{
4935 struct i40e_pf *pf = vsi->back;
b294ac70 4936 char int_name[I40E_INT_NAME_STR_LEN];
6c167f58
EK		 4937 int err;
4938
41c445ff
JB		 4939 /* allocate descriptors */
4940 err = i40e_vsi_setup_tx_resources(vsi);
4941 if (err)
4942 goto err_setup_tx;
4943 err = i40e_vsi_setup_rx_resources(vsi);
4944 if (err)
4945 goto err_setup_rx;
4946
4947 err = i40e_vsi_configure(vsi);
4948 if (err)
4949 goto err_setup_rx;
4950
c22e3c6c
SN		 4951 if (vsi->netdev) {
4952 snprintf(int_name, sizeof(int_name) - 1, "%s-%s",
4953 dev_driver_string(&pf->pdev->dev), vsi->netdev->name);
4954 err = i40e_vsi_request_irq(vsi, int_name);
4955 if (err)
4956 goto err_setup_rx;
41c445ff 4957
c22e3c6c
SN		 4958 /* Notify the stack of the actual queue counts. */
4959 err = netif_set_real_num_tx_queues(vsi->netdev,
4960 vsi->num_queue_pairs);
4961 if (err)
4962 goto err_set_queues;
25946ddb 4963
c22e3c6c
SN		 4964 err = netif_set_real_num_rx_queues(vsi->netdev,
4965 vsi->num_queue_pairs);
4966 if (err)
4967 goto err_set_queues;
8a9eb7d3
SN		 4968
4969 } else if (vsi->type == I40E_VSI_FDIR) {
e240f674 4970 snprintf(int_name, sizeof(int_name) - 1, "%s-%s:fdir",
b2008cbf
CW		 4971 dev_driver_string(&pf->pdev->dev),
4972 dev_name(&pf->pdev->dev));
8a9eb7d3 4973 err = i40e_vsi_request_irq(vsi, int_name);
b2008cbf 4974
c22e3c6c 4975 } else {
ce9ccb17 4976 err = -EINVAL;
6c167f58
EK		 4977 goto err_setup_rx;
4978 }
25946ddb 4979
41c445ff
JB		 4980 err = i40e_up_complete(vsi);
4981 if (err)
4982 goto err_up_complete;
4983
41c445ff
JB		 4984 return 0;
4985
4986err_up_complete:
4987 i40e_down(vsi);
25946ddb 4988err_set_queues:
41c445ff
JB		 4989 i40e_vsi_free_irq(vsi);
4990err_setup_rx:
4991 i40e_vsi_free_rx_resources(vsi);
4992err_setup_tx:
4993 i40e_vsi_free_tx_resources(vsi);
4994 if (vsi == pf->vsi[pf->lan_vsi])
4995 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
4996
4997 return err;
4998}
4999
17a73f6b
JG		 5000/**
5001 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
b40c82e6 5002 * @pf: Pointer to PF
17a73f6b
JG		 5003 *
5004 * This function destroys the hlist where all the Flow Director
5005 * filters were saved.
5006 **/
5007static void i40e_fdir_filter_exit(struct i40e_pf *pf)
5008{
5009 struct i40e_fdir_filter *filter;
5010 struct hlist_node *node2;
5011
5012 hlist_for_each_entry_safe(filter, node2,
5013 &pf->fdir_filter_list, fdir_node) {
5014 hlist_del(&filter->fdir_node);
5015 kfree(filter);
5016 }
5017 pf->fdir_pf_active_filters = 0;
5018}
5019
41c445ff
JB		 5020/**
5021 * i40e_close - Disables a network interface
5022 * @netdev: network interface device structure
5023 *
5024 * The close entry point is called when an interface is de-activated
5025 * by the OS. The hardware is still under the driver's control, but
5026 * this netdev interface is disabled.
5027 *
5028 * Returns 0, this is not allowed to fail
5029 **/
38e00438
VD		 5030#ifdef I40E_FCOE
5031int i40e_close(struct net_device *netdev)
5032#else
41c445ff 5033static int i40e_close(struct net_device *netdev)
38e00438 5034#endif
41c445ff
JB		 5035{
5036 struct i40e_netdev_priv *np = netdev_priv(netdev);
5037 struct i40e_vsi *vsi = np->vsi;
5038
90ef8d47 5039 i40e_vsi_close(vsi);
41c445ff
JB		 5040
5041 return 0;
5042}
5043
5044/**
5045 * i40e_do_reset - Start a PF or Core Reset sequence
5046 * @pf: board private structure
5047 * @reset_flags: which reset is requested
5048 *
5049 * The essential difference in resets is that the PF Reset
5050 * doesn't clear the packet buffers, doesn't reset the PE
5051 * firmware, and doesn't bother the other PFs on the chip.
5052 **/
5053void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags)
5054{
5055 u32 val;
5056
5057 WARN_ON(in_interrupt());
5058
263fc48f
MW		 5059 if (i40e_check_asq_alive(&pf->hw))
5060 i40e_vc_notify_reset(pf);
5061
41c445ff
JB		 5062 /* do the biggest reset indicated */
5063 if (reset_flags & (1 << __I40E_GLOBAL_RESET_REQUESTED)) {
5064
5065 /* Request a Global Reset
5066 *
5067 * This will start the chip's countdown to the actual full
5068 * chip reset event, and a warning interrupt to be sent
5069 * to all PFs, including the requestor. Our handler
5070 * for the warning interrupt will deal with the shutdown
5071 * and recovery of the switch setup.
5072 */
69bfb110 5073 dev_dbg(&pf->pdev->dev, "GlobalR requested\n");
41c445ff
JB		 5074 val = rd32(&pf->hw, I40E_GLGEN_RTRIG);
5075 val |= I40E_GLGEN_RTRIG_GLOBR_MASK;
5076 wr32(&pf->hw, I40E_GLGEN_RTRIG, val);
5077
5078 } else if (reset_flags & (1 << __I40E_CORE_RESET_REQUESTED)) {
5079
5080 /* Request a Core Reset
5081 *
5082 * Same as Global Reset, except does *not* include the MAC/PHY
5083 */
69bfb110 5084 dev_dbg(&pf->pdev->dev, "CoreR requested\n");
41c445ff
JB		 5085 val = rd32(&pf->hw, I40E_GLGEN_RTRIG);
5086 val |= I40E_GLGEN_RTRIG_CORER_MASK;
5087 wr32(&pf->hw, I40E_GLGEN_RTRIG, val);
5088 i40e_flush(&pf->hw);
5089
5090 } else if (reset_flags & (1 << __I40E_PF_RESET_REQUESTED)) {
5091
5092 /* Request a PF Reset
5093 *
5094 * Resets only the PF-specific registers
5095 *
5096 * This goes directly to the tear-down and rebuild of
5097 * the switch, since we need to do all the recovery as
5098 * for the Core Reset.
5099 */
69bfb110 5100 dev_dbg(&pf->pdev->dev, "PFR requested\n");
41c445ff
JB		 5101 i40e_handle_reset_warning(pf);
5102
5103 } else if (reset_flags & (1 << __I40E_REINIT_REQUESTED)) {
5104 int v;
5105
5106 /* Find the VSI(s) that requested a re-init */
5107 dev_info(&pf->pdev->dev,
5108 "VSI reinit requested\n");
505682cd 5109 for (v = 0; v < pf->num_alloc_vsi; v++) {
41c445ff
JB		 5110 struct i40e_vsi *vsi = pf->vsi[v];
5111 if (vsi != NULL &&
5112 test_bit(__I40E_REINIT_REQUESTED, &vsi->state)) {
5113 i40e_vsi_reinit_locked(pf->vsi[v]);
5114 clear_bit(__I40E_REINIT_REQUESTED, &vsi->state);
5115 }
5116 }
5117
b5d06f05
NP		 5118 /* no further action needed, so return now */
5119 return;
5120 } else if (reset_flags & (1 << __I40E_DOWN_REQUESTED)) {
5121 int v;
5122
5123 /* Find the VSI(s) that needs to be brought down */
5124 dev_info(&pf->pdev->dev, "VSI down requested\n");
5125 for (v = 0; v < pf->num_alloc_vsi; v++) {
5126 struct i40e_vsi *vsi = pf->vsi[v];
5127 if (vsi != NULL &&
5128 test_bit(__I40E_DOWN_REQUESTED, &vsi->state)) {
5129 set_bit(__I40E_DOWN, &vsi->state);
5130 i40e_down(vsi);
5131 clear_bit(__I40E_DOWN_REQUESTED, &vsi->state);
5132 }
5133 }
5134
41c445ff
JB		 5135 /* no further action needed, so return now */
5136 return;
5137 } else {
5138 dev_info(&pf->pdev->dev,
5139 "bad reset request 0x%08x\n", reset_flags);
5140 return;
5141 }
5142}
5143
4e3b35b0
NP		 5144#ifdef CONFIG_I40E_DCB
5145/**
5146 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5147 * @pf: board private structure
5148 * @old_cfg: current DCB config
5149 * @new_cfg: new DCB config
5150 **/
5151bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
5152 struct i40e_dcbx_config *old_cfg,
5153 struct i40e_dcbx_config *new_cfg)
5154{
5155 bool need_reconfig = false;
5156
5157 /* Check if ETS configuration has changed */
5158 if (memcmp(&new_cfg->etscfg,
5159 &old_cfg->etscfg,
5160 sizeof(new_cfg->etscfg))) {
5161 /* If Priority Table has changed reconfig is needed */
5162 if (memcmp(&new_cfg->etscfg.prioritytable,
5163 &old_cfg->etscfg.prioritytable,
5164 sizeof(new_cfg->etscfg.prioritytable))) {
5165 need_reconfig = true;
69bfb110 5166 dev_dbg(&pf->pdev->dev, "ETS UP2TC changed.\n");
4e3b35b0
NP		 5167 }
5168
5169 if (memcmp(&new_cfg->etscfg.tcbwtable,
5170 &old_cfg->etscfg.tcbwtable,
5171 sizeof(new_cfg->etscfg.tcbwtable)))
69bfb110 5172 dev_dbg(&pf->pdev->dev, "ETS TC BW Table changed.\n");
4e3b35b0
NP		 5173
5174 if (memcmp(&new_cfg->etscfg.tsatable,
5175 &old_cfg->etscfg.tsatable,
5176 sizeof(new_cfg->etscfg.tsatable)))
69bfb110 5177 dev_dbg(&pf->pdev->dev, "ETS TSA Table changed.\n");
4e3b35b0
NP		 5178 }
5179
5180 /* Check if PFC configuration has changed */
5181 if (memcmp(&new_cfg->pfc,
5182 &old_cfg->pfc,
5183 sizeof(new_cfg->pfc))) {
5184 need_reconfig = true;
69bfb110 5185 dev_dbg(&pf->pdev->dev, "PFC config change detected.\n");
4e3b35b0
NP		 5186 }
5187
5188 /* Check if APP Table has changed */
5189 if (memcmp(&new_cfg->app,
5190 &old_cfg->app,
3d9667a9 5191 sizeof(new_cfg->app))) {
4e3b35b0 5192 need_reconfig = true;
69bfb110 5193 dev_dbg(&pf->pdev->dev, "APP Table change detected.\n");
3d9667a9 5194 }
4e3b35b0 5195
9fa61dd2
NP		 5196 dev_dbg(&pf->pdev->dev, "%s: need_reconfig=%d\n", __func__,
5197 need_reconfig);
4e3b35b0
NP		 5198 return need_reconfig;
5199}
5200
5201/**
5202 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5203 * @pf: board private structure
5204 * @e: event info posted on ARQ
5205 **/
5206static int i40e_handle_lldp_event(struct i40e_pf *pf,
5207 struct i40e_arq_event_info *e)
5208{
5209 struct i40e_aqc_lldp_get_mib *mib =
5210 (struct i40e_aqc_lldp_get_mib *)&e->desc.params.raw;
5211 struct i40e_hw *hw = &pf->hw;
4e3b35b0
NP		 5212 struct i40e_dcbx_config tmp_dcbx_cfg;
5213 bool need_reconfig = false;
5214 int ret = 0;
5215 u8 type;
5216
4d9b6043
NP		 5217 /* Not DCB capable or capability disabled */
5218 if (!(pf->flags & I40E_FLAG_DCB_CAPABLE))
5219 return ret;
5220
4e3b35b0
NP		 5221 /* Ignore if event is not for Nearest Bridge */
5222 type = ((mib->type >> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT)
5223 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK);
9fa61dd2
NP		 5224 dev_dbg(&pf->pdev->dev,
5225 "%s: LLDP event mib bridge type 0x%x\n", __func__, type);
4e3b35b0
NP		 5226 if (type != I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE)
5227 return ret;
5228
5229 /* Check MIB Type and return if event for Remote MIB update */
5230 type = mib->type & I40E_AQ_LLDP_MIB_TYPE_MASK;
9fa61dd2
NP		 5231 dev_dbg(&pf->pdev->dev,
5232 "%s: LLDP event mib type %s\n", __func__,
5233 type ? "remote" : "local");
4e3b35b0
NP		 5234 if (type == I40E_AQ_LLDP_MIB_REMOTE) {
5235 /* Update the remote cached instance and return */
5236 ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE,
5237 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
5238 &hw->remote_dcbx_config);
5239 goto exit;
5240 }
5241
9fa61dd2 5242 /* Store the old configuration */
1a2f6248 5243 tmp_dcbx_cfg = hw->local_dcbx_config;
9fa61dd2 5244
750fcbcf
NP		 5245 /* Reset the old DCBx configuration data */
5246 memset(&hw->local_dcbx_config, 0, sizeof(hw->local_dcbx_config));
9fa61dd2
NP		 5247 /* Get updated DCBX data from firmware */
5248 ret = i40e_get_dcb_config(&pf->hw);
4e3b35b0 5249 if (ret) {
9fa61dd2 5250 dev_info(&pf->pdev->dev, "Failed querying DCB configuration data from firmware.\n");
4e3b35b0
NP		 5251 goto exit;
5252 }
5253
5254 /* No change detected in DCBX configs */
750fcbcf
NP		 5255 if (!memcmp(&tmp_dcbx_cfg, &hw->local_dcbx_config,
5256 sizeof(tmp_dcbx_cfg))) {
69bfb110 5257 dev_dbg(&pf->pdev->dev, "No change detected in DCBX configuration.\n");
4e3b35b0
NP		 5258 goto exit;
5259 }
5260
750fcbcf
NP		 5261 need_reconfig = i40e_dcb_need_reconfig(pf, &tmp_dcbx_cfg,
5262 &hw->local_dcbx_config);
4e3b35b0 5263
750fcbcf 5264 i40e_dcbnl_flush_apps(pf, &tmp_dcbx_cfg, &hw->local_dcbx_config);
4e3b35b0
NP		 5265
5266 if (!need_reconfig)
5267 goto exit;
5268
4d9b6043 5269 /* Enable DCB tagging only when more than one TC */
750fcbcf 5270 if (i40e_dcb_get_num_tc(&hw->local_dcbx_config) > 1)
4d9b6043
NP		 5271 pf->flags |= I40E_FLAG_DCB_ENABLED;
5272 else
5273 pf->flags &= ~I40E_FLAG_DCB_ENABLED;
5274
69129dc3 5275 set_bit(__I40E_PORT_TX_SUSPENDED, &pf->state);
4e3b35b0
NP		 5276 /* Reconfiguration needed quiesce all VSIs */
5277 i40e_pf_quiesce_all_vsi(pf);
5278
5279 /* Changes in configuration update VEB/VSI */
5280 i40e_dcb_reconfigure(pf);
5281
2fd75f31
NP		 5282 ret = i40e_resume_port_tx(pf);
5283
69129dc3 5284 clear_bit(__I40E_PORT_TX_SUSPENDED, &pf->state);
2fd75f31 5285 /* In case of error no point in resuming VSIs */
69129dc3
NP		 5286 if (ret)
5287 goto exit;
5288
5289 /* Wait for the PF's Tx queues to be disabled */
5290 ret = i40e_pf_wait_txq_disabled(pf);
11e47708
PN		 5291 if (ret) {
5292 /* Schedule PF reset to recover */
5293 set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
5294 i40e_service_event_schedule(pf);
5295 } else {
2fd75f31 5296 i40e_pf_unquiesce_all_vsi(pf);
11e47708
PN		 5297 }
5298
4e3b35b0
NP		 5299exit:
5300 return ret;
5301}
5302#endif /* CONFIG_I40E_DCB */
5303
23326186
ASJ		 5304/**
5305 * i40e_do_reset_safe - Protected reset path for userland calls.
5306 * @pf: board private structure
5307 * @reset_flags: which reset is requested
5308 *
5309 **/
5310void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags)
5311{
5312 rtnl_lock();
5313 i40e_do_reset(pf, reset_flags);
5314 rtnl_unlock();
5315}
5316
41c445ff
JB		 5317/**
5318 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5319 * @pf: board private structure
5320 * @e: event info posted on ARQ
5321 *
5322 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5323 * and VF queues
5324 **/
5325static void i40e_handle_lan_overflow_event(struct i40e_pf *pf,
5326 struct i40e_arq_event_info *e)
5327{
5328 struct i40e_aqc_lan_overflow *data =
5329 (struct i40e_aqc_lan_overflow *)&e->desc.params.raw;
5330 u32 queue = le32_to_cpu(data->prtdcb_rupto);
5331 u32 qtx_ctl = le32_to_cpu(data->otx_ctl);
5332 struct i40e_hw *hw = &pf->hw;
5333 struct i40e_vf *vf;
5334 u16 vf_id;
5335
69bfb110
JB		 5336 dev_dbg(&pf->pdev->dev, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5337 queue, qtx_ctl);
41c445ff
JB		 5338
5339 /* Queue belongs to VF, find the VF and issue VF reset */
5340 if (((qtx_ctl & I40E_QTX_CTL_PFVF_Q_MASK)
5341 >> I40E_QTX_CTL_PFVF_Q_SHIFT) == I40E_QTX_CTL_VF_QUEUE) {
5342 vf_id = (u16)((qtx_ctl & I40E_QTX_CTL_VFVM_INDX_MASK)
5343 >> I40E_QTX_CTL_VFVM_INDX_SHIFT);
5344 vf_id -= hw->func_caps.vf_base_id;
5345 vf = &pf->vf[vf_id];
5346 i40e_vc_notify_vf_reset(vf);
5347 /* Allow VF to process pending reset notification */
5348 msleep(20);
5349 i40e_reset_vf(vf, false);
5350 }
5351}
5352
5353/**
5354 * i40e_service_event_complete - Finish up the service event
5355 * @pf: board private structure
5356 **/
5357static void i40e_service_event_complete(struct i40e_pf *pf)
5358{
5359 BUG_ON(!test_bit(__I40E_SERVICE_SCHED, &pf->state));
5360
5361 /* flush memory to make sure state is correct before next watchog */
4e857c58 5362 smp_mb__before_atomic();
41c445ff
JB		 5363 clear_bit(__I40E_SERVICE_SCHED, &pf->state);
5364}
5365
55a5e60b 5366/**
12957388
ASJ		 5367 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5368 * @pf: board private structure
5369 **/
04294e38 5370u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf)
12957388 5371{
04294e38 5372 u32 val, fcnt_prog;
12957388
ASJ		 5373
5374 val = rd32(&pf->hw, I40E_PFQF_FDSTAT);
5375 fcnt_prog = (val & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK);
5376 return fcnt_prog;
5377}
5378
5379/**
04294e38 5380 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
55a5e60b
ASJ		 5381 * @pf: board private structure
5382 **/
04294e38 5383u32 i40e_get_current_fd_count(struct i40e_pf *pf)
55a5e60b 5384{
04294e38
ASJ		 5385 u32 val, fcnt_prog;
5386
55a5e60b
ASJ		 5387 val = rd32(&pf->hw, I40E_PFQF_FDSTAT);
5388 fcnt_prog = (val & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) +
5389 ((val & I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
5390 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
5391 return fcnt_prog;
5392}
1e1be8f6 5393
04294e38
ASJ		 5394/**
5395 * i40e_get_global_fd_count - Get total FD filters programmed on device
5396 * @pf: board private structure
5397 **/
5398u32 i40e_get_global_fd_count(struct i40e_pf *pf)
5399{
5400 u32 val, fcnt_prog;
5401
5402 val = rd32(&pf->hw, I40E_GLQF_FDCNT_0);
5403 fcnt_prog = (val & I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK) +
5404 ((val & I40E_GLQF_FDCNT_0_BESTCNT_MASK) >>
5405 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT);
5406 return fcnt_prog;
5407}
5408
55a5e60b
ASJ		 5409/**
5410 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5411 * @pf: board private structure
5412 **/
5413void i40e_fdir_check_and_reenable(struct i40e_pf *pf)
5414{
5415 u32 fcnt_prog, fcnt_avail;
5416
1e1be8f6
ASJ		 5417 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
5418 return;
5419
55a5e60b
ASJ		 5420 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5421 * to re-enable
5422 */
04294e38 5423 fcnt_prog = i40e_get_global_fd_count(pf);
12957388 5424 fcnt_avail = pf->fdir_pf_filter_count;
1e1be8f6
ASJ		 5425 if ((fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM)) ||
5426 (pf->fd_add_err == 0) ||
5427 (i40e_get_current_atr_cnt(pf) < pf->fd_atr_cnt)) {
55a5e60b
ASJ		 5428 if ((pf->flags & I40E_FLAG_FD_SB_ENABLED) &&
5429 (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) {
5430 pf->auto_disable_flags &= ~I40E_FLAG_FD_SB_ENABLED;
5431 dev_info(&pf->pdev->dev, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5432 }
5433 }
5434 /* Wait for some more space to be available to turn on ATR */
5435 if (fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM * 2)) {
5436 if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) &&
5437 (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED)) {
5438 pf->auto_disable_flags &= ~I40E_FLAG_FD_ATR_ENABLED;
5439 dev_info(&pf->pdev->dev, "ATR is being enabled since we have space in the table now\n");
5440 }
5441 }
5442}
5443
1e1be8f6 5444#define I40E_MIN_FD_FLUSH_INTERVAL 10
04294e38 5445#define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
1e1be8f6
ASJ		 5446/**
5447 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5448 * @pf: board private structure
5449 **/
5450static void i40e_fdir_flush_and_replay(struct i40e_pf *pf)
5451{
04294e38 5452 unsigned long min_flush_time;
1e1be8f6 5453 int flush_wait_retry = 50;
04294e38
ASJ		 5454 bool disable_atr = false;
5455 int fd_room;
1e1be8f6
ASJ		 5456 int reg;
5457
1790ed0c
AA		 5458 if (!(pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED)))
5459 return;
5460
1e1be8f6
ASJ		 5461 if (time_after(jiffies, pf->fd_flush_timestamp +
5462 (I40E_MIN_FD_FLUSH_INTERVAL * HZ))) {
04294e38
ASJ		 5463 /* If the flush is happening too quick and we have mostly
5464 * SB rules we should not re-enable ATR for some time.
5465 */
5466 min_flush_time = pf->fd_flush_timestamp
5467 + (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE * HZ);
5468 fd_room = pf->fdir_pf_filter_count - pf->fdir_pf_active_filters;
5469
5470 if (!(time_after(jiffies, min_flush_time)) &&
5471 (fd_room < I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR)) {
5472 dev_info(&pf->pdev->dev, "ATR disabled, not enough FD filter space.\n");
5473 disable_atr = true;
5474 }
5475
1e1be8f6 5476 pf->fd_flush_timestamp = jiffies;
1e1be8f6
ASJ		 5477 pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
5478 /* flush all filters */
5479 wr32(&pf->hw, I40E_PFQF_CTL_1,
5480 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK);
5481 i40e_flush(&pf->hw);
60793f4a 5482 pf->fd_flush_cnt++;
1e1be8f6
ASJ		 5483 pf->fd_add_err = 0;
5484 do {
5485 /* Check FD flush status every 5-6msec */
5486 usleep_range(5000, 6000);
5487 reg = rd32(&pf->hw, I40E_PFQF_CTL_1);
5488 if (!(reg & I40E_PFQF_CTL_1_CLEARFDTABLE_MASK))
5489 break;
5490 } while (flush_wait_retry--);
5491 if (reg & I40E_PFQF_CTL_1_CLEARFDTABLE_MASK) {
5492 dev_warn(&pf->pdev->dev, "FD table did not flush, needs more time\n");
5493 } else {
5494 /* replay sideband filters */
5495 i40e_fdir_filter_restore(pf->vsi[pf->lan_vsi]);
04294e38
ASJ		 5496 if (!disable_atr)
5497 pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
1e1be8f6
ASJ		 5498 clear_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state);
5499 dev_info(&pf->pdev->dev, "FD Filter table flushed and FD-SB replayed.\n");
5500 }
5501 }
5502}
5503
5504/**
5505 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5506 * @pf: board private structure
5507 **/
04294e38 5508u32 i40e_get_current_atr_cnt(struct i40e_pf *pf)
1e1be8f6
ASJ		 5509{
5510 return i40e_get_current_fd_count(pf) - pf->fdir_pf_active_filters;
5511}
5512
5513/* We can see up to 256 filter programming desc in transit if the filters are
5514 * being applied really fast; before we see the first
5515 * filter miss error on Rx queue 0. Accumulating enough error messages before
5516 * reacting will make sure we don't cause flush too often.
5517 */
5518#define I40E_MAX_FD_PROGRAM_ERROR 256
5519
41c445ff
JB		 5520/**
5521 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5522 * @pf: board private structure
5523 **/
5524static void i40e_fdir_reinit_subtask(struct i40e_pf *pf)
5525{
41c445ff 5526
41c445ff
JB		 5527 /* if interface is down do nothing */
5528 if (test_bit(__I40E_DOWN, &pf->state))
5529 return;
1e1be8f6 5530
1790ed0c
AA		 5531 if (!(pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED)))
5532 return;
5533
04294e38 5534 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
1e1be8f6
ASJ		 5535 i40e_fdir_flush_and_replay(pf);
5536
55a5e60b
ASJ		 5537 i40e_fdir_check_and_reenable(pf);
5538
41c445ff
JB		 5539}
5540
5541/**
5542 * i40e_vsi_link_event - notify VSI of a link event
5543 * @vsi: vsi to be notified
5544 * @link_up: link up or down
5545 **/
5546static void i40e_vsi_link_event(struct i40e_vsi *vsi, bool link_up)
5547{
32b5b811 5548 if (!vsi || test_bit(__I40E_DOWN, &vsi->state))
41c445ff
JB		 5549 return;
5550
5551 switch (vsi->type) {
5552 case I40E_VSI_MAIN:
38e00438
VD		 5553#ifdef I40E_FCOE
5554 case I40E_VSI_FCOE:
5555#endif
41c445ff
JB		 5556 if (!vsi->netdev || !vsi->netdev_registered)
5557 break;
5558
5559 if (link_up) {
5560 netif_carrier_on(vsi->netdev);
5561 netif_tx_wake_all_queues(vsi->netdev);
5562 } else {
5563 netif_carrier_off(vsi->netdev);
5564 netif_tx_stop_all_queues(vsi->netdev);
5565 }
5566 break;
5567
5568 case I40E_VSI_SRIOV:
41c445ff
JB		 5569 case I40E_VSI_VMDQ2:
5570 case I40E_VSI_CTRL:
5571 case I40E_VSI_MIRROR:
5572 default:
5573 /* there is no notification for other VSIs */
5574 break;
5575 }
5576}
5577
5578/**
5579 * i40e_veb_link_event - notify elements on the veb of a link event
5580 * @veb: veb to be notified
5581 * @link_up: link up or down
5582 **/
5583static void i40e_veb_link_event(struct i40e_veb *veb, bool link_up)
5584{
5585 struct i40e_pf *pf;
5586 int i;
5587
5588 if (!veb || !veb->pf)
5589 return;
5590 pf = veb->pf;
5591
5592 /* depth first... */
5593 for (i = 0; i < I40E_MAX_VEB; i++)
5594 if (pf->veb[i] && (pf->veb[i]->uplink_seid == veb->seid))
5595 i40e_veb_link_event(pf->veb[i], link_up);
5596
5597 /* ... now the local VSIs */
505682cd 5598 for (i = 0; i < pf->num_alloc_vsi; i++)
41c445ff
JB		 5599 if (pf->vsi[i] && (pf->vsi[i]->uplink_seid == veb->seid))
5600 i40e_vsi_link_event(pf->vsi[i], link_up);
5601}
5602
5603/**
5604 * i40e_link_event - Update netif_carrier status
5605 * @pf: board private structure
5606 **/
5607static void i40e_link_event(struct i40e_pf *pf)
5608{
5609 bool new_link, old_link;
320684cd 5610 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
fef59ddf 5611 u8 new_link_speed, old_link_speed;
41c445ff 5612
1e701e09
JB		 5613 /* set this to force the get_link_status call to refresh state */
5614 pf->hw.phy.get_link_info = true;
5615
41c445ff 5616 old_link = (pf->hw.phy.link_info_old.link_info & I40E_AQ_LINK_UP);
1e701e09 5617 new_link = i40e_get_link_status(&pf->hw);
fef59ddf
CS		 5618 old_link_speed = pf->hw.phy.link_info_old.link_speed;
5619 new_link_speed = pf->hw.phy.link_info.link_speed;
41c445ff 5620
1e701e09 5621 if (new_link == old_link &&
fef59ddf 5622 new_link_speed == old_link_speed &&
320684cd
MW		 5623 (test_bit(__I40E_DOWN, &vsi->state) ||
5624 new_link == netif_carrier_ok(vsi->netdev)))
41c445ff 5625 return;
320684cd
MW		 5626
5627 if (!test_bit(__I40E_DOWN, &vsi->state))
5628 i40e_print_link_message(vsi, new_link);
41c445ff
JB		 5629
5630 /* Notify the base of the switch tree connected to
5631 * the link. Floating VEBs are not notified.
5632 */
5633 if (pf->lan_veb != I40E_NO_VEB && pf->veb[pf->lan_veb])
5634 i40e_veb_link_event(pf->veb[pf->lan_veb], new_link);
5635 else
320684cd 5636 i40e_vsi_link_event(vsi, new_link);
41c445ff
JB		 5637
5638 if (pf->vf)
5639 i40e_vc_notify_link_state(pf);
beb0dff1
JK		 5640
5641 if (pf->flags & I40E_FLAG_PTP)
5642 i40e_ptp_set_increment(pf);
41c445ff
JB		 5643}
5644
5645/**
5646 * i40e_check_hang_subtask - Check for hung queues and dropped interrupts
5647 * @pf: board private structure
5648 *
5649 * Set the per-queue flags to request a check for stuck queues in the irq
5650 * clean functions, then force interrupts to be sure the irq clean is called.
5651 **/
5652static void i40e_check_hang_subtask(struct i40e_pf *pf)
5653{
5654 int i, v;
5655
5656 /* If we're down or resetting, just bail */
b67a0335
AA		 5657 if (test_bit(__I40E_DOWN, &pf->state) ||
5658 test_bit(__I40E_CONFIG_BUSY, &pf->state))
41c445ff
JB		 5659 return;
5660
5661 /* for each VSI/netdev
5662 * for each Tx queue
5663 * set the check flag
5664 * for each q_vector
5665 * force an interrupt
5666 */
505682cd 5667 for (v = 0; v < pf->num_alloc_vsi; v++) {
41c445ff
JB		 5668 struct i40e_vsi *vsi = pf->vsi[v];
5669 int armed = 0;
5670
5671 if (!pf->vsi[v] ||
5672 test_bit(__I40E_DOWN, &vsi->state) ||
5673 (vsi->netdev && !netif_carrier_ok(vsi->netdev)))
5674 continue;
5675
5676 for (i = 0; i < vsi->num_queue_pairs; i++) {
9f65e15b 5677 set_check_for_tx_hang(vsi->tx_rings[i]);
41c445ff 5678 if (test_bit(__I40E_HANG_CHECK_ARMED,
9f65e15b 5679 &vsi->tx_rings[i]->state))
41c445ff
JB		 5680 armed++;
5681 }
5682
5683 if (armed) {
5684 if (!(pf->flags & I40E_FLAG_MSIX_ENABLED)) {
5685 wr32(&vsi->back->hw, I40E_PFINT_DYN_CTL0,
5686 (I40E_PFINT_DYN_CTL0_INTENA_MASK |
5d1ff106
SN		 5687 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
5688 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
5689 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
5690 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
41c445ff
JB		 5691 } else {
5692 u16 vec = vsi->base_vector - 1;
5693 u32 val = (I40E_PFINT_DYN_CTLN_INTENA_MASK |
5d1ff106
SN		 5694 I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK |
5695 I40E_PFINT_DYN_CTLN_ITR_INDX_MASK |
5696 I40E_PFINT_DYN_CTLN_SW_ITR_INDX_ENA_MASK |
5697 I40E_PFINT_DYN_CTLN_SW_ITR_INDX_MASK);
41c445ff
JB		 5698 for (i = 0; i < vsi->num_q_vectors; i++, vec++)
5699 wr32(&vsi->back->hw,
5700 I40E_PFINT_DYN_CTLN(vec), val);
5701 }
5702 i40e_flush(&vsi->back->hw);
5703 }
5704 }
5705}
5706
5707/**
21536717 5708 * i40e_watchdog_subtask - periodic checks not using event driven response
41c445ff
JB		 5709 * @pf: board private structure
5710 **/
5711static void i40e_watchdog_subtask(struct i40e_pf *pf)
5712{
5713 int i;
5714
5715 /* if interface is down do nothing */
5716 if (test_bit(__I40E_DOWN, &pf->state) ||
5717 test_bit(__I40E_CONFIG_BUSY, &pf->state))
5718 return;
5719
21536717
SN		 5720 /* make sure we don't do these things too often */
5721 if (time_before(jiffies, (pf->service_timer_previous +
5722 pf->service_timer_period)))
5723 return;
5724 pf->service_timer_previous = jiffies;
5725
5726 i40e_check_hang_subtask(pf);
5727 i40e_link_event(pf);
5728
41c445ff
JB		 5729 /* Update the stats for active netdevs so the network stack
5730 * can look at updated numbers whenever it cares to
5731 */
505682cd 5732 for (i = 0; i < pf->num_alloc_vsi; i++)
41c445ff
JB		 5733 if (pf->vsi[i] && pf->vsi[i]->netdev)
5734 i40e_update_stats(pf->vsi[i]);
5735
5736 /* Update the stats for the active switching components */
5737 for (i = 0; i < I40E_MAX_VEB; i++)
5738 if (pf->veb[i])
5739 i40e_update_veb_stats(pf->veb[i]);
beb0dff1
JK		 5740
5741 i40e_ptp_rx_hang(pf->vsi[pf->lan_vsi]);
41c445ff
JB		 5742}
5743
5744/**
5745 * i40e_reset_subtask - Set up for resetting the device and driver
5746 * @pf: board private structure
5747 **/
5748static void i40e_reset_subtask(struct i40e_pf *pf)
5749{
5750 u32 reset_flags = 0;
5751
23326186 5752 rtnl_lock();
41c445ff
JB		 5753 if (test_bit(__I40E_REINIT_REQUESTED, &pf->state)) {
5754 reset_flags |= (1 << __I40E_REINIT_REQUESTED);
5755 clear_bit(__I40E_REINIT_REQUESTED, &pf->state);
5756 }
5757 if (test_bit(__I40E_PF_RESET_REQUESTED, &pf->state)) {
5758 reset_flags |= (1 << __I40E_PF_RESET_REQUESTED);
5759 clear_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
5760 }
5761 if (test_bit(__I40E_CORE_RESET_REQUESTED, &pf->state)) {
5762 reset_flags |= (1 << __I40E_CORE_RESET_REQUESTED);
5763 clear_bit(__I40E_CORE_RESET_REQUESTED, &pf->state);
5764 }
5765 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED, &pf->state)) {
5766 reset_flags |= (1 << __I40E_GLOBAL_RESET_REQUESTED);
5767 clear_bit(__I40E_GLOBAL_RESET_REQUESTED, &pf->state);
5768 }
b5d06f05
NP		 5769 if (test_bit(__I40E_DOWN_REQUESTED, &pf->state)) {
5770 reset_flags |= (1 << __I40E_DOWN_REQUESTED);
5771 clear_bit(__I40E_DOWN_REQUESTED, &pf->state);
5772 }
41c445ff
JB		 5773
5774 /* If there's a recovery already waiting, it takes
5775 * precedence before starting a new reset sequence.
5776 */
5777 if (test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) {
5778 i40e_handle_reset_warning(pf);
23326186 5779 goto unlock;
41c445ff
JB		 5780 }
5781
5782 /* If we're already down or resetting, just bail */
5783 if (reset_flags &&
5784 !test_bit(__I40E_DOWN, &pf->state) &&
5785 !test_bit(__I40E_CONFIG_BUSY, &pf->state))
5786 i40e_do_reset(pf, reset_flags);
23326186
ASJ		 5787
5788unlock:
5789 rtnl_unlock();
41c445ff
JB		 5790}
5791
5792/**
5793 * i40e_handle_link_event - Handle link event
5794 * @pf: board private structure
5795 * @e: event info posted on ARQ
5796 **/
5797static void i40e_handle_link_event(struct i40e_pf *pf,
5798 struct i40e_arq_event_info *e)
5799{
5800 struct i40e_hw *hw = &pf->hw;
5801 struct i40e_aqc_get_link_status *status =
5802 (struct i40e_aqc_get_link_status *)&e->desc.params.raw;
41c445ff
JB		 5803
5804 /* save off old link status information */
1a2f6248 5805 hw->phy.link_info_old = hw->phy.link_info;
41c445ff 5806
1e701e09
JB		 5807 /* Do a new status request to re-enable LSE reporting
5808 * and load new status information into the hw struct
5809 * This completely ignores any state information
5810 * in the ARQ event info, instead choosing to always
5811 * issue the AQ update link status command.
5812 */
5813 i40e_link_event(pf);
5814
7b592f61
CW		 5815 /* check for unqualified module, if link is down */
5816 if ((status->link_info & I40E_AQ_MEDIA_AVAILABLE) &&
5817 (!(status->an_info & I40E_AQ_QUALIFIED_MODULE)) &&
5818 (!(status->link_info & I40E_AQ_LINK_UP)))
5819 dev_err(&pf->pdev->dev,
5820 "The driver failed to link because an unqualified module was detected.\n");
41c445ff
JB		 5821}
5822
5823/**
5824 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5825 * @pf: board private structure
5826 **/
5827static void i40e_clean_adminq_subtask(struct i40e_pf *pf)
5828{
5829 struct i40e_arq_event_info event;
5830 struct i40e_hw *hw = &pf->hw;
5831 u16 pending, i = 0;
5832 i40e_status ret;
5833 u16 opcode;
86df242b 5834 u32 oldval;
41c445ff
JB		 5835 u32 val;
5836
a316f651
ASJ		 5837 /* Do not run clean AQ when PF reset fails */
5838 if (test_bit(__I40E_RESET_FAILED, &pf->state))
5839 return;
5840
86df242b
SN		 5841 /* check for error indications */
5842 val = rd32(&pf->hw, pf->hw.aq.arq.len);
5843 oldval = val;
5844 if (val & I40E_PF_ARQLEN_ARQVFE_MASK) {
5845 dev_info(&pf->pdev->dev, "ARQ VF Error detected\n");
5846 val &= ~I40E_PF_ARQLEN_ARQVFE_MASK;
5847 }
5848 if (val & I40E_PF_ARQLEN_ARQOVFL_MASK) {
5849 dev_info(&pf->pdev->dev, "ARQ Overflow Error detected\n");
5850 val &= ~I40E_PF_ARQLEN_ARQOVFL_MASK;
5851 }
5852 if (val & I40E_PF_ARQLEN_ARQCRIT_MASK) {
5853 dev_info(&pf->pdev->dev, "ARQ Critical Error detected\n");
5854 val &= ~I40E_PF_ARQLEN_ARQCRIT_MASK;
5855 }
5856 if (oldval != val)
5857 wr32(&pf->hw, pf->hw.aq.arq.len, val);
5858
5859 val = rd32(&pf->hw, pf->hw.aq.asq.len);
5860 oldval = val;
5861 if (val & I40E_PF_ATQLEN_ATQVFE_MASK) {
5862 dev_info(&pf->pdev->dev, "ASQ VF Error detected\n");
5863 val &= ~I40E_PF_ATQLEN_ATQVFE_MASK;
5864 }
5865 if (val & I40E_PF_ATQLEN_ATQOVFL_MASK) {
5866 dev_info(&pf->pdev->dev, "ASQ Overflow Error detected\n");
5867 val &= ~I40E_PF_ATQLEN_ATQOVFL_MASK;
5868 }
5869 if (val & I40E_PF_ATQLEN_ATQCRIT_MASK) {
5870 dev_info(&pf->pdev->dev, "ASQ Critical Error detected\n");
5871 val &= ~I40E_PF_ATQLEN_ATQCRIT_MASK;
5872 }
5873 if (oldval != val)
5874 wr32(&pf->hw, pf->hw.aq.asq.len, val);
5875
1001dc37
MW		 5876 event.buf_len = I40E_MAX_AQ_BUF_SIZE;
5877 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
41c445ff
JB		 5878 if (!event.msg_buf)
5879 return;
5880
5881 do {
5882 ret = i40e_clean_arq_element(hw, &event, &pending);
56497978 5883 if (ret == I40E_ERR_ADMIN_QUEUE_NO_WORK)
41c445ff 5884 break;
56497978 5885 else if (ret) {
41c445ff
JB		 5886 dev_info(&pf->pdev->dev, "ARQ event error %d\n", ret);
5887 break;
5888 }
5889
5890 opcode = le16_to_cpu(event.desc.opcode);
5891 switch (opcode) {
5892
5893 case i40e_aqc_opc_get_link_status:
5894 i40e_handle_link_event(pf, &event);
5895 break;
5896 case i40e_aqc_opc_send_msg_to_pf:
5897 ret = i40e_vc_process_vf_msg(pf,
5898 le16_to_cpu(event.desc.retval),
5899 le32_to_cpu(event.desc.cookie_high),
5900 le32_to_cpu(event.desc.cookie_low),
5901 event.msg_buf,
1001dc37 5902 event.msg_len);
41c445ff
JB		 5903 break;
5904 case i40e_aqc_opc_lldp_update_mib:
69bfb110 5905 dev_dbg(&pf->pdev->dev, "ARQ: Update LLDP MIB event received\n");
4e3b35b0
NP		 5906#ifdef CONFIG_I40E_DCB
5907 rtnl_lock();
5908 ret = i40e_handle_lldp_event(pf, &event);
5909 rtnl_unlock();
5910#endif /* CONFIG_I40E_DCB */
41c445ff
JB		 5911 break;
5912 case i40e_aqc_opc_event_lan_overflow:
69bfb110 5913 dev_dbg(&pf->pdev->dev, "ARQ LAN queue overflow event received\n");
41c445ff
JB		 5914 i40e_handle_lan_overflow_event(pf, &event);
5915 break;
0467bc91
SN		 5916 case i40e_aqc_opc_send_msg_to_peer:
5917 dev_info(&pf->pdev->dev, "ARQ: Msg from other pf\n");
5918 break;
91a0f930
SN		 5919 case i40e_aqc_opc_nvm_erase:
5920 case i40e_aqc_opc_nvm_update:
5921 i40e_debug(&pf->hw, I40E_DEBUG_NVM, "ARQ NVM operation completed\n");
5922 break;
41c445ff
JB		 5923 default:
5924 dev_info(&pf->pdev->dev,
0467bc91
SN		 5925 "ARQ Error: Unknown event 0x%04x received\n",
5926 opcode);
41c445ff
JB		 5927 break;
5928 }
5929 } while (pending && (i++ < pf->adminq_work_limit));
5930
5931 clear_bit(__I40E_ADMINQ_EVENT_PENDING, &pf->state);
5932 /* re-enable Admin queue interrupt cause */
5933 val = rd32(hw, I40E_PFINT_ICR0_ENA);
5934 val |= I40E_PFINT_ICR0_ENA_ADMINQ_MASK;
5935 wr32(hw, I40E_PFINT_ICR0_ENA, val);
5936 i40e_flush(hw);
5937
5938 kfree(event.msg_buf);
5939}
5940
4eb3f768
SN		 5941/**
5942 * i40e_verify_eeprom - make sure eeprom is good to use
5943 * @pf: board private structure
5944 **/
5945static void i40e_verify_eeprom(struct i40e_pf *pf)
5946{
5947 int err;
5948
5949 err = i40e_diag_eeprom_test(&pf->hw);
5950 if (err) {
5951 /* retry in case of garbage read */
5952 err = i40e_diag_eeprom_test(&pf->hw);
5953 if (err) {
5954 dev_info(&pf->pdev->dev, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
5955 err);
5956 set_bit(__I40E_BAD_EEPROM, &pf->state);
5957 }
5958 }
5959
5960 if (!err && test_bit(__I40E_BAD_EEPROM, &pf->state)) {
5961 dev_info(&pf->pdev->dev, "eeprom check passed, Tx/Rx traffic enabled\n");
5962 clear_bit(__I40E_BAD_EEPROM, &pf->state);
5963 }
5964}
5965
386a0afa
AA		 5966/**
5967 * i40e_enable_pf_switch_lb
b40c82e6 5968 * @pf: pointer to the PF structure
386a0afa
AA		 5969 *
5970 * enable switch loop back or die - no point in a return value
5971 **/
5972static void i40e_enable_pf_switch_lb(struct i40e_pf *pf)
5973{
5974 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
5975 struct i40e_vsi_context ctxt;
5976 int aq_ret;
5977
5978 ctxt.seid = pf->main_vsi_seid;
5979 ctxt.pf_num = pf->hw.pf_id;
5980 ctxt.vf_num = 0;
5981 aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
5982 if (aq_ret) {
5983 dev_info(&pf->pdev->dev,
b40c82e6 5984 "%s couldn't get PF vsi config, err %d, aq_err %d\n",
386a0afa
AA		 5985 __func__, aq_ret, pf->hw.aq.asq_last_status);
5986 return;
5987 }
5988 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
5989 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
5990 ctxt.info.switch_id |= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
5991
5992 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
5993 if (aq_ret) {
5994 dev_info(&pf->pdev->dev,
5995 "%s: update vsi switch failed, aq_err=%d\n",
5996 __func__, vsi->back->hw.aq.asq_last_status);
5997 }
5998}
5999
6000/**
6001 * i40e_disable_pf_switch_lb
b40c82e6 6002 * @pf: pointer to the PF structure
386a0afa
AA		 6003 *
6004 * disable switch loop back or die - no point in a return value
6005 **/
6006static void i40e_disable_pf_switch_lb(struct i40e_pf *pf)
6007{
6008 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
6009 struct i40e_vsi_context ctxt;
6010 int aq_ret;
6011
6012 ctxt.seid = pf->main_vsi_seid;
6013 ctxt.pf_num = pf->hw.pf_id;
6014 ctxt.vf_num = 0;
6015 aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
6016 if (aq_ret) {
6017 dev_info(&pf->pdev->dev,
b40c82e6 6018 "%s couldn't get PF vsi config, err %d, aq_err %d\n",
386a0afa
AA		 6019 __func__, aq_ret, pf->hw.aq.asq_last_status);
6020 return;
6021 }
6022 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
6023 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
6024 ctxt.info.switch_id &= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
6025
6026 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
6027 if (aq_ret) {
6028 dev_info(&pf->pdev->dev,
6029 "%s: update vsi switch failed, aq_err=%d\n",
6030 __func__, vsi->back->hw.aq.asq_last_status);
6031 }
6032}
6033
51616018
NP		 6034/**
6035 * i40e_config_bridge_mode - Configure the HW bridge mode
6036 * @veb: pointer to the bridge instance
6037 *
6038 * Configure the loop back mode for the LAN VSI that is downlink to the
6039 * specified HW bridge instance. It is expected this function is called
6040 * when a new HW bridge is instantiated.
6041 **/
6042static void i40e_config_bridge_mode(struct i40e_veb *veb)
6043{
6044 struct i40e_pf *pf = veb->pf;
6045
6046 dev_info(&pf->pdev->dev, "enabling bridge mode: %s\n",
6047 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
6048 if (veb->bridge_mode & BRIDGE_MODE_VEPA)
6049 i40e_disable_pf_switch_lb(pf);
6050 else
6051 i40e_enable_pf_switch_lb(pf);
6052}
6053
41c445ff
JB		 6054/**
6055 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6056 * @veb: pointer to the VEB instance
6057 *
6058 * This is a recursive function that first builds the attached VSIs then
6059 * recurses in to build the next layer of VEB. We track the connections
6060 * through our own index numbers because the seid's from the HW could
6061 * change across the reset.
6062 **/
6063static int i40e_reconstitute_veb(struct i40e_veb *veb)
6064{
6065 struct i40e_vsi *ctl_vsi = NULL;
6066 struct i40e_pf *pf = veb->pf;
6067 int v, veb_idx;
6068 int ret;
6069
6070 /* build VSI that owns this VEB, temporarily attached to base VEB */
505682cd 6071 for (v = 0; v < pf->num_alloc_vsi && !ctl_vsi; v++) {
41c445ff
JB		 6072 if (pf->vsi[v] &&
6073 pf->vsi[v]->veb_idx == veb->idx &&
6074 pf->vsi[v]->flags & I40E_VSI_FLAG_VEB_OWNER) {
6075 ctl_vsi = pf->vsi[v];
6076 break;
6077 }
6078 }
6079 if (!ctl_vsi) {
6080 dev_info(&pf->pdev->dev,
6081 "missing owner VSI for veb_idx %d\n", veb->idx);
6082 ret = -ENOENT;
6083 goto end_reconstitute;
6084 }
6085 if (ctl_vsi != pf->vsi[pf->lan_vsi])
6086 ctl_vsi->uplink_seid = pf->vsi[pf->lan_vsi]->uplink_seid;
6087 ret = i40e_add_vsi(ctl_vsi);
6088 if (ret) {
6089 dev_info(&pf->pdev->dev,
6090 "rebuild of owner VSI failed: %d\n", ret);
6091 goto end_reconstitute;
6092 }
6093 i40e_vsi_reset_stats(ctl_vsi);
6094
6095 /* create the VEB in the switch and move the VSI onto the VEB */
6096 ret = i40e_add_veb(veb, ctl_vsi);
6097 if (ret)
6098 goto end_reconstitute;
6099
51616018 6100 i40e_config_bridge_mode(veb);
b64ba084 6101
41c445ff 6102 /* create the remaining VSIs attached to this VEB */
505682cd 6103 for (v = 0; v < pf->num_alloc_vsi; v++) {
41c445ff
JB		 6104 if (!pf->vsi[v] || pf->vsi[v] == ctl_vsi)
6105 continue;
6106
6107 if (pf->vsi[v]->veb_idx == veb->idx) {
6108 struct i40e_vsi *vsi = pf->vsi[v];
6109 vsi->uplink_seid = veb->seid;
6110 ret = i40e_add_vsi(vsi);
6111 if (ret) {
6112 dev_info(&pf->pdev->dev,
6113 "rebuild of vsi_idx %d failed: %d\n",
6114 v, ret);
6115 goto end_reconstitute;
6116 }
6117 i40e_vsi_reset_stats(vsi);
6118 }
6119 }
6120
6121 /* create any VEBs attached to this VEB - RECURSION */
6122 for (veb_idx = 0; veb_idx < I40E_MAX_VEB; veb_idx++) {
6123 if (pf->veb[veb_idx] && pf->veb[veb_idx]->veb_idx == veb->idx) {
6124 pf->veb[veb_idx]->uplink_seid = veb->seid;
6125 ret = i40e_reconstitute_veb(pf->veb[veb_idx]);
6126 if (ret)
6127 break;
6128 }
6129 }
6130
6131end_reconstitute:
6132 return ret;
6133}
6134
6135/**
6136 * i40e_get_capabilities - get info about the HW
6137 * @pf: the PF struct
6138 **/
6139static int i40e_get_capabilities(struct i40e_pf *pf)
6140{
6141 struct i40e_aqc_list_capabilities_element_resp *cap_buf;
6142 u16 data_size;
6143 int buf_len;
6144 int err;
6145
6146 buf_len = 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp);
6147 do {
6148 cap_buf = kzalloc(buf_len, GFP_KERNEL);
6149 if (!cap_buf)
6150 return -ENOMEM;
6151
6152 /* this loads the data into the hw struct for us */
6153 err = i40e_aq_discover_capabilities(&pf->hw, cap_buf, buf_len,
6154 &data_size,
6155 i40e_aqc_opc_list_func_capabilities,
6156 NULL);
6157 /* data loaded, buffer no longer needed */
6158 kfree(cap_buf);
6159
6160 if (pf->hw.aq.asq_last_status == I40E_AQ_RC_ENOMEM) {
6161 /* retry with a larger buffer */
6162 buf_len = data_size;
6163 } else if (pf->hw.aq.asq_last_status != I40E_AQ_RC_OK) {
6164 dev_info(&pf->pdev->dev,
6165 "capability discovery failed: aq=%d\n",
6166 pf->hw.aq.asq_last_status);
6167 return -ENODEV;
6168 }
6169 } while (err);
6170
ac71b7ba
ASJ		 6171 if (((pf->hw.aq.fw_maj_ver == 2) && (pf->hw.aq.fw_min_ver < 22)) ||
6172 (pf->hw.aq.fw_maj_ver < 2)) {
6173 pf->hw.func_caps.num_msix_vectors++;
6174 pf->hw.func_caps.num_msix_vectors_vf++;
6175 }
6176
41c445ff
JB		 6177 if (pf->hw.debug_mask & I40E_DEBUG_USER)
6178 dev_info(&pf->pdev->dev,
6179 "pf=%d, num_vfs=%d, msix_pf=%d, msix_vf=%d, fd_g=%d, fd_b=%d, pf_max_q=%d num_vsi=%d\n",
6180 pf->hw.pf_id, pf->hw.func_caps.num_vfs,
6181 pf->hw.func_caps.num_msix_vectors,
6182 pf->hw.func_caps.num_msix_vectors_vf,
6183 pf->hw.func_caps.fd_filters_guaranteed,
6184 pf->hw.func_caps.fd_filters_best_effort,
6185 pf->hw.func_caps.num_tx_qp,
6186 pf->hw.func_caps.num_vsis);
6187
7134f9ce
JB		 6188#define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6189 + pf->hw.func_caps.num_vfs)
6190 if (pf->hw.revision_id == 0 && (DEF_NUM_VSI > pf->hw.func_caps.num_vsis)) {
6191 dev_info(&pf->pdev->dev,
6192 "got num_vsis %d, setting num_vsis to %d\n",
6193 pf->hw.func_caps.num_vsis, DEF_NUM_VSI);
6194 pf->hw.func_caps.num_vsis = DEF_NUM_VSI;
6195 }
6196
41c445ff
JB		 6197 return 0;
6198}
6199
cbf61325
ASJ		 6200static int i40e_vsi_clear(struct i40e_vsi *vsi);
6201
41c445ff 6202/**
cbf61325 6203 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
41c445ff
JB		 6204 * @pf: board private structure
6205 **/
cbf61325 6206static void i40e_fdir_sb_setup(struct i40e_pf *pf)
41c445ff
JB		 6207{
6208 struct i40e_vsi *vsi;
8a9eb7d3 6209 int i;
41c445ff 6210
407e063c
JB		 6211 /* quick workaround for an NVM issue that leaves a critical register
6212 * uninitialized
6213 */
6214 if (!rd32(&pf->hw, I40E_GLQF_HKEY(0))) {
6215 static const u32 hkey[] = {
6216 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6217 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6218 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6219 0x95b3a76d};
6220
6221 for (i = 0; i <= I40E_GLQF_HKEY_MAX_INDEX; i++)
6222 wr32(&pf->hw, I40E_GLQF_HKEY(i), hkey[i]);
6223 }
6224
cbf61325 6225 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
41c445ff
JB		 6226 return;
6227
cbf61325 6228 /* find existing VSI and see if it needs configuring */
41c445ff 6229 vsi = NULL;
505682cd 6230 for (i = 0; i < pf->num_alloc_vsi; i++) {
cbf61325 6231 if (pf->vsi[i] && pf->vsi[i]->type == I40E_VSI_FDIR) {
41c445ff 6232 vsi = pf->vsi[i];
cbf61325
ASJ		 6233 break;
6234 }
6235 }
6236
6237 /* create a new VSI if none exists */
41c445ff 6238 if (!vsi) {
cbf61325
ASJ		 6239 vsi = i40e_vsi_setup(pf, I40E_VSI_FDIR,
6240 pf->vsi[pf->lan_vsi]->seid, 0);
41c445ff
JB		 6241 if (!vsi) {
6242 dev_info(&pf->pdev->dev, "Couldn't create FDir VSI\n");
8a9eb7d3
SN		 6243 pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
6244 return;
41c445ff 6245 }
cbf61325 6246 }
41c445ff 6247
8a9eb7d3 6248 i40e_vsi_setup_irqhandler(vsi, i40e_fdir_clean_ring);
41c445ff
JB		 6249}
6250
6251/**
6252 * i40e_fdir_teardown - release the Flow Director resources
6253 * @pf: board private structure
6254 **/
6255static void i40e_fdir_teardown(struct i40e_pf *pf)
6256{
6257 int i;
6258
17a73f6b 6259 i40e_fdir_filter_exit(pf);
505682cd 6260 for (i = 0; i < pf->num_alloc_vsi; i++) {
41c445ff
JB		 6261 if (pf->vsi[i] && pf->vsi[i]->type == I40E_VSI_FDIR) {
6262 i40e_vsi_release(pf->vsi[i]);
6263 break;
6264 }
6265 }
6266}
6267
6268/**
f650a38b 6269 * i40e_prep_for_reset - prep for the core to reset
41c445ff
JB		 6270 * @pf: board private structure
6271 *
b40c82e6 6272 * Close up the VFs and other things in prep for PF Reset.
f650a38b 6273 **/
23cfbe07 6274static void i40e_prep_for_reset(struct i40e_pf *pf)
41c445ff 6275{
41c445ff 6276 struct i40e_hw *hw = &pf->hw;
60442dea 6277 i40e_status ret = 0;
41c445ff
JB		 6278 u32 v;
6279
6280 clear_bit(__I40E_RESET_INTR_RECEIVED, &pf->state);
6281 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state))
23cfbe07 6282 return;
41c445ff 6283
69bfb110 6284 dev_dbg(&pf->pdev->dev, "Tearing down internal switch for reset\n");
41c445ff 6285
41c445ff
JB		 6286 /* quiesce the VSIs and their queues that are not already DOWN */
6287 i40e_pf_quiesce_all_vsi(pf);
6288
505682cd 6289 for (v = 0; v < pf->num_alloc_vsi; v++) {
41c445ff
JB		 6290 if (pf->vsi[v])
6291 pf->vsi[v]->seid = 0;
6292 }
6293
6294 i40e_shutdown_adminq(&pf->hw);
6295
f650a38b 6296 /* call shutdown HMC */
60442dea
SN		 6297 if (hw->hmc.hmc_obj) {
6298 ret = i40e_shutdown_lan_hmc(hw);
23cfbe07 6299 if (ret)
60442dea
SN		 6300 dev_warn(&pf->pdev->dev,
6301 "shutdown_lan_hmc failed: %d\n", ret);
f650a38b 6302 }
f650a38b
ASJ		 6303}
6304
44033fac
JB		 6305/**
6306 * i40e_send_version - update firmware with driver version
6307 * @pf: PF struct
6308 */
6309static void i40e_send_version(struct i40e_pf *pf)
6310{
6311 struct i40e_driver_version dv;
6312
6313 dv.major_version = DRV_VERSION_MAJOR;
6314 dv.minor_version = DRV_VERSION_MINOR;
6315 dv.build_version = DRV_VERSION_BUILD;
6316 dv.subbuild_version = 0;
35a7d804 6317 strlcpy(dv.driver_string, DRV_VERSION, sizeof(dv.driver_string));
44033fac
JB		 6318 i40e_aq_send_driver_version(&pf->hw, &dv, NULL);
6319}
6320
f650a38b 6321/**
4dda12e6 6322 * i40e_reset_and_rebuild - reset and rebuild using a saved config
f650a38b 6323 * @pf: board private structure
bc7d338f 6324 * @reinit: if the Main VSI needs to re-initialized.
f650a38b 6325 **/
bc7d338f 6326static void i40e_reset_and_rebuild(struct i40e_pf *pf, bool reinit)
f650a38b 6327{
f650a38b 6328 struct i40e_hw *hw = &pf->hw;
cafa2ee6 6329 u8 set_fc_aq_fail = 0;
f650a38b
ASJ		 6330 i40e_status ret;
6331 u32 v;
6332
41c445ff
JB		 6333 /* Now we wait for GRST to settle out.
6334 * We don't have to delete the VEBs or VSIs from the hw switch
6335 * because the reset will make them disappear.
6336 */
6337 ret = i40e_pf_reset(hw);
b5565400 6338 if (ret) {
41c445ff 6339 dev_info(&pf->pdev->dev, "PF reset failed, %d\n", ret);
a316f651
ASJ		 6340 set_bit(__I40E_RESET_FAILED, &pf->state);
6341 goto clear_recovery;
b5565400 6342 }
41c445ff
JB		 6343 pf->pfr_count++;
6344
6345 if (test_bit(__I40E_DOWN, &pf->state))
a316f651 6346 goto clear_recovery;
69bfb110 6347 dev_dbg(&pf->pdev->dev, "Rebuilding internal switch\n");
41c445ff
JB		 6348
6349 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6350 ret = i40e_init_adminq(&pf->hw);
6351 if (ret) {
6352 dev_info(&pf->pdev->dev, "Rebuild AdminQ failed, %d\n", ret);
a316f651 6353 goto clear_recovery;
41c445ff
JB		 6354 }
6355
4eb3f768 6356 /* re-verify the eeprom if we just had an EMP reset */
9df42d1a 6357 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED, &pf->state))
4eb3f768 6358 i40e_verify_eeprom(pf);
4eb3f768 6359
e78ac4bf 6360 i40e_clear_pxe_mode(hw);
41c445ff
JB		 6361 ret = i40e_get_capabilities(pf);
6362 if (ret) {
6363 dev_info(&pf->pdev->dev, "i40e_get_capabilities failed, %d\n",
6364 ret);
6365 goto end_core_reset;
6366 }
6367
41c445ff
JB		 6368 ret = i40e_init_lan_hmc(hw, hw->func_caps.num_tx_qp,
6369 hw->func_caps.num_rx_qp,
6370 pf->fcoe_hmc_cntx_num, pf->fcoe_hmc_filt_num);
6371 if (ret) {
6372 dev_info(&pf->pdev->dev, "init_lan_hmc failed: %d\n", ret);
6373 goto end_core_reset;
6374 }
6375 ret = i40e_configure_lan_hmc(hw, I40E_HMC_MODEL_DIRECT_ONLY);
6376 if (ret) {
6377 dev_info(&pf->pdev->dev, "configure_lan_hmc failed: %d\n", ret);
6378 goto end_core_reset;
6379 }
6380
4e3b35b0
NP		 6381#ifdef CONFIG_I40E_DCB
6382 ret = i40e_init_pf_dcb(pf);
6383 if (ret) {
aebfc816
SN		 6384 dev_info(&pf->pdev->dev, "DCB init failed %d, disabled\n", ret);
6385 pf->flags &= ~I40E_FLAG_DCB_CAPABLE;
6386 /* Continue without DCB enabled */
4e3b35b0
NP		 6387 }
6388#endif /* CONFIG_I40E_DCB */
38e00438
VD		 6389#ifdef I40E_FCOE
6390 ret = i40e_init_pf_fcoe(pf);
6391 if (ret)
6392 dev_info(&pf->pdev->dev, "init_pf_fcoe failed: %d\n", ret);
4e3b35b0 6393
38e00438 6394#endif
41c445ff 6395 /* do basic switch setup */
bc7d338f 6396 ret = i40e_setup_pf_switch(pf, reinit);
41c445ff
JB		 6397 if (ret)
6398 goto end_core_reset;
6399
7e2453fe
JB		 6400 /* driver is only interested in link up/down and module qualification
6401 * reports from firmware
6402 */
6403 ret = i40e_aq_set_phy_int_mask(&pf->hw,
6404 I40E_AQ_EVENT_LINK_UPDOWN |
6405 I40E_AQ_EVENT_MODULE_QUAL_FAIL, NULL);
6406 if (ret)
6407 dev_info(&pf->pdev->dev, "set phy mask fail, aq_err %d\n", ret);
6408
cafa2ee6
ASJ		 6409 /* make sure our flow control settings are restored */
6410 ret = i40e_set_fc(&pf->hw, &set_fc_aq_fail, true);
6411 if (ret)
6412 dev_info(&pf->pdev->dev, "set fc fail, aq_err %d\n", ret);
6413
41c445ff
JB		 6414 /* Rebuild the VSIs and VEBs that existed before reset.
6415 * They are still in our local switch element arrays, so only
6416 * need to rebuild the switch model in the HW.
6417 *
6418 * If there were VEBs but the reconstitution failed, we'll try
6419 * try to recover minimal use by getting the basic PF VSI working.
6420 */
6421 if (pf->vsi[pf->lan_vsi]->uplink_seid != pf->mac_seid) {
69bfb110 6422 dev_dbg(&pf->pdev->dev, "attempting to rebuild switch\n");
41c445ff
JB		 6423 /* find the one VEB connected to the MAC, and find orphans */
6424 for (v = 0; v < I40E_MAX_VEB; v++) {
6425 if (!pf->veb[v])
6426 continue;
6427
6428 if (pf->veb[v]->uplink_seid == pf->mac_seid ||
6429 pf->veb[v]->uplink_seid == 0) {
6430 ret = i40e_reconstitute_veb(pf->veb[v]);
6431
6432 if (!ret)
6433 continue;
6434
6435 /* If Main VEB failed, we're in deep doodoo,
6436 * so give up rebuilding the switch and set up
6437 * for minimal rebuild of PF VSI.
6438 * If orphan failed, we'll report the error
6439 * but try to keep going.
6440 */
6441 if (pf->veb[v]->uplink_seid == pf->mac_seid) {
6442 dev_info(&pf->pdev->dev,
6443 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6444 ret);
6445 pf->vsi[pf->lan_vsi]->uplink_seid
6446 = pf->mac_seid;
6447 break;
6448 } else if (pf->veb[v]->uplink_seid == 0) {
6449 dev_info(&pf->pdev->dev,
6450 "rebuild of orphan VEB failed: %d\n",
6451 ret);
6452 }
6453 }
6454 }
6455 }
6456
6457 if (pf->vsi[pf->lan_vsi]->uplink_seid == pf->mac_seid) {
cde4cbc7 6458 dev_dbg(&pf->pdev->dev, "attempting to rebuild PF VSI\n");
41c445ff
JB		 6459 /* no VEB, so rebuild only the Main VSI */
6460 ret = i40e_add_vsi(pf->vsi[pf->lan_vsi]);
6461 if (ret) {
6462 dev_info(&pf->pdev->dev,
6463 "rebuild of Main VSI failed: %d\n", ret);
6464 goto end_core_reset;
6465 }
6466 }
6467
025b4a54
ASJ		 6468 if (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 33)) ||
6469 (pf->hw.aq.fw_maj_ver < 4)) {
6470 msleep(75);
6471 ret = i40e_aq_set_link_restart_an(&pf->hw, true, NULL);
6472 if (ret)
6473 dev_info(&pf->pdev->dev, "link restart failed, aq_err=%d\n",
6474 pf->hw.aq.asq_last_status);
cafa2ee6 6475 }
41c445ff
JB		 6476 /* reinit the misc interrupt */
6477 if (pf->flags & I40E_FLAG_MSIX_ENABLED)
6478 ret = i40e_setup_misc_vector(pf);
6479
6480 /* restart the VSIs that were rebuilt and running before the reset */
6481 i40e_pf_unquiesce_all_vsi(pf);
6482
69f64b2b
MW		 6483 if (pf->num_alloc_vfs) {
6484 for (v = 0; v < pf->num_alloc_vfs; v++)
6485 i40e_reset_vf(&pf->vf[v], true);
6486 }
6487
41c445ff 6488 /* tell the firmware that we're starting */
44033fac 6489 i40e_send_version(pf);
41c445ff
JB		 6490
6491end_core_reset:
a316f651
ASJ		 6492 clear_bit(__I40E_RESET_FAILED, &pf->state);
6493clear_recovery:
41c445ff
JB		 6494 clear_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state);
6495}
6496
f650a38b 6497/**
b40c82e6 6498 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
f650a38b
ASJ		 6499 * @pf: board private structure
6500 *
6501 * Close up the VFs and other things in prep for a Core Reset,
6502 * then get ready to rebuild the world.
6503 **/
6504static void i40e_handle_reset_warning(struct i40e_pf *pf)
6505{
23cfbe07
SN		 6506 i40e_prep_for_reset(pf);
6507 i40e_reset_and_rebuild(pf, false);
f650a38b
ASJ		 6508}
6509
41c445ff
JB		 6510/**
6511 * i40e_handle_mdd_event
b40c82e6 6512 * @pf: pointer to the PF structure
41c445ff
JB		 6513 *
6514 * Called from the MDD irq handler to identify possibly malicious vfs
6515 **/
6516static void i40e_handle_mdd_event(struct i40e_pf *pf)
6517{
6518 struct i40e_hw *hw = &pf->hw;
6519 bool mdd_detected = false;
df430b12 6520 bool pf_mdd_detected = false;
41c445ff
JB		 6521 struct i40e_vf *vf;
6522 u32 reg;
6523 int i;
6524
6525 if (!test_bit(__I40E_MDD_EVENT_PENDING, &pf->state))
6526 return;
6527
6528 /* find what triggered the MDD event */
6529 reg = rd32(hw, I40E_GL_MDET_TX);
6530 if (reg & I40E_GL_MDET_TX_VALID_MASK) {
4c33f83a
ASJ		 6531 u8 pf_num = (reg & I40E_GL_MDET_TX_PF_NUM_MASK) >>
6532 I40E_GL_MDET_TX_PF_NUM_SHIFT;
2089ad03 6533 u16 vf_num = (reg & I40E_GL_MDET_TX_VF_NUM_MASK) >>
4c33f83a 6534 I40E_GL_MDET_TX_VF_NUM_SHIFT;
013f6579 6535 u8 event = (reg & I40E_GL_MDET_TX_EVENT_MASK) >>
4c33f83a 6536 I40E_GL_MDET_TX_EVENT_SHIFT;
2089ad03
MW		 6537 u16 queue = ((reg & I40E_GL_MDET_TX_QUEUE_MASK) >>
6538 I40E_GL_MDET_TX_QUEUE_SHIFT) -
6539 pf->hw.func_caps.base_queue;
faf32978 6540 if (netif_msg_tx_err(pf))
b40c82e6 6541 dev_info(&pf->pdev->dev, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
faf32978 6542 event, queue, pf_num, vf_num);
41c445ff
JB		 6543 wr32(hw, I40E_GL_MDET_TX, 0xffffffff);
6544 mdd_detected = true;
6545 }
6546 reg = rd32(hw, I40E_GL_MDET_RX);
6547 if (reg & I40E_GL_MDET_RX_VALID_MASK) {
4c33f83a
ASJ		 6548 u8 func = (reg & I40E_GL_MDET_RX_FUNCTION_MASK) >>
6549 I40E_GL_MDET_RX_FUNCTION_SHIFT;
013f6579 6550 u8 event = (reg & I40E_GL_MDET_RX_EVENT_MASK) >>
4c33f83a 6551 I40E_GL_MDET_RX_EVENT_SHIFT;
2089ad03
MW		 6552 u16 queue = ((reg & I40E_GL_MDET_RX_QUEUE_MASK) >>
6553 I40E_GL_MDET_RX_QUEUE_SHIFT) -
6554 pf->hw.func_caps.base_queue;
faf32978
JB		 6555 if (netif_msg_rx_err(pf))
6556 dev_info(&pf->pdev->dev, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6557 event, queue, func);
41c445ff
JB		 6558 wr32(hw, I40E_GL_MDET_RX, 0xffffffff);
6559 mdd_detected = true;
6560 }
6561
df430b12
NP		 6562 if (mdd_detected) {
6563 reg = rd32(hw, I40E_PF_MDET_TX);
6564 if (reg & I40E_PF_MDET_TX_VALID_MASK) {
6565 wr32(hw, I40E_PF_MDET_TX, 0xFFFF);
faf32978 6566 dev_info(&pf->pdev->dev, "TX driver issue detected, PF reset issued\n");
df430b12
NP		 6567 pf_mdd_detected = true;
6568 }
6569 reg = rd32(hw, I40E_PF_MDET_RX);
6570 if (reg & I40E_PF_MDET_RX_VALID_MASK) {
6571 wr32(hw, I40E_PF_MDET_RX, 0xFFFF);
faf32978 6572 dev_info(&pf->pdev->dev, "RX driver issue detected, PF reset issued\n");
df430b12
NP		 6573 pf_mdd_detected = true;
6574 }
6575 /* Queue belongs to the PF, initiate a reset */
6576 if (pf_mdd_detected) {
6577 set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
6578 i40e_service_event_schedule(pf);
6579 }
6580 }
6581
41c445ff
JB		 6582 /* see if one of the VFs needs its hand slapped */
6583 for (i = 0; i < pf->num_alloc_vfs && mdd_detected; i++) {
6584 vf = &(pf->vf[i]);
6585 reg = rd32(hw, I40E_VP_MDET_TX(i));
6586 if (reg & I40E_VP_MDET_TX_VALID_MASK) {
6587 wr32(hw, I40E_VP_MDET_TX(i), 0xFFFF);
6588 vf->num_mdd_events++;
faf32978
JB		 6589 dev_info(&pf->pdev->dev, "TX driver issue detected on VF %d\n",
6590 i);
41c445ff
JB		 6591 }
6592
6593 reg = rd32(hw, I40E_VP_MDET_RX(i));
6594 if (reg & I40E_VP_MDET_RX_VALID_MASK) {
6595 wr32(hw, I40E_VP_MDET_RX(i), 0xFFFF);
6596 vf->num_mdd_events++;
faf32978
JB		 6597 dev_info(&pf->pdev->dev, "RX driver issue detected on VF %d\n",
6598 i);
41c445ff
JB		 6599 }
6600
6601 if (vf->num_mdd_events > I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED) {
6602 dev_info(&pf->pdev->dev,
6603 "Too many MDD events on VF %d, disabled\n", i);
6604 dev_info(&pf->pdev->dev,
6605 "Use PF Control I/F to re-enable the VF\n");
6606 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
6607 }
6608 }
6609
6610 /* re-enable mdd interrupt cause */
6611 clear_bit(__I40E_MDD_EVENT_PENDING, &pf->state);
6612 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
6613 reg |= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK;
6614 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
6615 i40e_flush(hw);
6616}
6617
a1c9a9d9
JK		 6618#ifdef CONFIG_I40E_VXLAN
6619/**
6620 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6621 * @pf: board private structure
6622 **/
6623static void i40e_sync_vxlan_filters_subtask(struct i40e_pf *pf)
6624{
a1c9a9d9
JK		 6625 struct i40e_hw *hw = &pf->hw;
6626 i40e_status ret;
a1c9a9d9
JK		 6627 __be16 port;
6628 int i;
6629
6630 if (!(pf->flags & I40E_FLAG_VXLAN_FILTER_SYNC))
6631 return;
6632
6633 pf->flags &= ~I40E_FLAG_VXLAN_FILTER_SYNC;
6634
6635 for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) {
6636 if (pf->pending_vxlan_bitmap & (1 << i)) {
6637 pf->pending_vxlan_bitmap &= ~(1 << i);
6638 port = pf->vxlan_ports[i];
c22c06c8
SN		 6639 if (port)
6640 ret = i40e_aq_add_udp_tunnel(hw, ntohs(port),
a1c9a9d9 6641 I40E_AQC_TUNNEL_TYPE_VXLAN,
c22c06c8
SN		 6642 NULL, NULL);
6643 else
6644 ret = i40e_aq_del_udp_tunnel(hw, i, NULL);
a1c9a9d9
JK		 6645
6646 if (ret) {
c22c06c8
SN		 6647 dev_info(&pf->pdev->dev,
6648 "%s vxlan port %d, index %d failed, err %d, aq_err %d\n",
6649 port ? "add" : "delete",
6650 ntohs(port), i, ret,
6651 pf->hw.aq.asq_last_status);
a1c9a9d9 6652 pf->vxlan_ports[i] = 0;
a1c9a9d9
JK		 6653 }
6654 }
6655 }
6656}
6657
6658#endif
41c445ff
JB		 6659/**
6660 * i40e_service_task - Run the driver's async subtasks
6661 * @work: pointer to work_struct containing our data
6662 **/
6663static void i40e_service_task(struct work_struct *work)
6664{
6665 struct i40e_pf *pf = container_of(work,
6666 struct i40e_pf,
6667 service_task);
6668 unsigned long start_time = jiffies;
6669
e57a2fea
SN		 6670 /* don't bother with service tasks if a reset is in progress */
6671 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state)) {
6672 i40e_service_event_complete(pf);
6673 return;
6674 }
6675
41c445ff
JB		 6676 i40e_reset_subtask(pf);
6677 i40e_handle_mdd_event(pf);
6678 i40e_vc_process_vflr_event(pf);
6679 i40e_watchdog_subtask(pf);
6680 i40e_fdir_reinit_subtask(pf);
41c445ff 6681 i40e_sync_filters_subtask(pf);
a1c9a9d9
JK		 6682#ifdef CONFIG_I40E_VXLAN
6683 i40e_sync_vxlan_filters_subtask(pf);
6684#endif
41c445ff
JB		 6685 i40e_clean_adminq_subtask(pf);
6686
6687 i40e_service_event_complete(pf);
6688
6689 /* If the tasks have taken longer than one timer cycle or there
6690 * is more work to be done, reschedule the service task now
6691 * rather than wait for the timer to tick again.
6692 */
6693 if (time_after(jiffies, (start_time + pf->service_timer_period)) ||
6694 test_bit(__I40E_ADMINQ_EVENT_PENDING, &pf->state) ||
6695 test_bit(__I40E_MDD_EVENT_PENDING, &pf->state) ||
6696 test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
6697 i40e_service_event_schedule(pf);
6698}
6699
6700/**
6701 * i40e_service_timer - timer callback
6702 * @data: pointer to PF struct
6703 **/
6704static void i40e_service_timer(unsigned long data)
6705{
6706 struct i40e_pf *pf = (struct i40e_pf *)data;
6707
6708 mod_timer(&pf->service_timer,
6709 round_jiffies(jiffies + pf->service_timer_period));
6710 i40e_service_event_schedule(pf);
6711}
6712
6713/**
6714 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6715 * @vsi: the VSI being configured
6716 **/
6717static int i40e_set_num_rings_in_vsi(struct i40e_vsi *vsi)
6718{
6719 struct i40e_pf *pf = vsi->back;
6720
6721 switch (vsi->type) {
6722 case I40E_VSI_MAIN:
6723 vsi->alloc_queue_pairs = pf->num_lan_qps;
6724 vsi->num_desc = ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS,
6725 I40E_REQ_DESCRIPTOR_MULTIPLE);
6726 if (pf->flags & I40E_FLAG_MSIX_ENABLED)
6727 vsi->num_q_vectors = pf->num_lan_msix;
6728 else
6729 vsi->num_q_vectors = 1;
6730
6731 break;
6732
6733 case I40E_VSI_FDIR:
6734 vsi->alloc_queue_pairs = 1;
6735 vsi->num_desc = ALIGN(I40E_FDIR_RING_COUNT,
6736 I40E_REQ_DESCRIPTOR_MULTIPLE);
6737 vsi->num_q_vectors = 1;
6738 break;
6739
6740 case I40E_VSI_VMDQ2:
6741 vsi->alloc_queue_pairs = pf->num_vmdq_qps;
6742 vsi->num_desc = ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS,
6743 I40E_REQ_DESCRIPTOR_MULTIPLE);
6744 vsi->num_q_vectors = pf->num_vmdq_msix;
6745 break;
6746
6747 case I40E_VSI_SRIOV:
6748 vsi->alloc_queue_pairs = pf->num_vf_qps;
6749 vsi->num_desc = ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS,
6750 I40E_REQ_DESCRIPTOR_MULTIPLE);
6751 break;
6752
38e00438
VD		 6753#ifdef I40E_FCOE
6754 case I40E_VSI_FCOE:
6755 vsi->alloc_queue_pairs = pf->num_fcoe_qps;
6756 vsi->num_desc = ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS,
6757 I40E_REQ_DESCRIPTOR_MULTIPLE);
6758 vsi->num_q_vectors = pf->num_fcoe_msix;
6759 break;
6760
6761#endif /* I40E_FCOE */
41c445ff
JB		 6762 default:
6763 WARN_ON(1);
6764 return -ENODATA;
6765 }
6766
6767 return 0;
6768}
6769
f650a38b
ASJ		 6770/**
6771 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6772 * @type: VSI pointer
bc7d338f 6773 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
f650a38b
ASJ		 6774 *
6775 * On error: returns error code (negative)
6776 * On success: returns 0
6777 **/
bc7d338f 6778static int i40e_vsi_alloc_arrays(struct i40e_vsi *vsi, bool alloc_qvectors)
f650a38b
ASJ		 6779{
6780 int size;
6781 int ret = 0;
6782
ac6c5e3d 6783 /* allocate memory for both Tx and Rx ring pointers */
f650a38b
ASJ		 6784 size = sizeof(struct i40e_ring *) * vsi->alloc_queue_pairs * 2;
6785 vsi->tx_rings = kzalloc(size, GFP_KERNEL);
6786 if (!vsi->tx_rings)
6787 return -ENOMEM;
f650a38b
ASJ		 6788 vsi->rx_rings = &vsi->tx_rings[vsi->alloc_queue_pairs];
6789
bc7d338f
ASJ		 6790 if (alloc_qvectors) {
6791 /* allocate memory for q_vector pointers */
f57e4fbd 6792 size = sizeof(struct i40e_q_vector *) * vsi->num_q_vectors;
bc7d338f
ASJ		 6793 vsi->q_vectors = kzalloc(size, GFP_KERNEL);
6794 if (!vsi->q_vectors) {
6795 ret = -ENOMEM;
6796 goto err_vectors;
6797 }
f650a38b
ASJ		 6798 }
6799 return ret;
6800
6801err_vectors:
6802 kfree(vsi->tx_rings);
6803 return ret;
6804}
6805
41c445ff
JB		 6806/**
6807 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6808 * @pf: board private structure
6809 * @type: type of VSI
6810 *
6811 * On error: returns error code (negative)
6812 * On success: returns vsi index in PF (positive)
6813 **/
6814static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type)
6815{
6816 int ret = -ENODEV;
6817 struct i40e_vsi *vsi;
6818 int vsi_idx;
6819 int i;
6820
6821 /* Need to protect the allocation of the VSIs at the PF level */
6822 mutex_lock(&pf->switch_mutex);
6823
6824 /* VSI list may be fragmented if VSI creation/destruction has
6825 * been happening. We can afford to do a quick scan to look
6826 * for any free VSIs in the list.
6827 *
6828 * find next empty vsi slot, looping back around if necessary
6829 */
6830 i = pf->next_vsi;
505682cd 6831 while (i < pf->num_alloc_vsi && pf->vsi[i])
41c445ff 6832 i++;
505682cd 6833 if (i >= pf->num_alloc_vsi) {
41c445ff
JB		 6834 i = 0;
6835 while (i < pf->next_vsi && pf->vsi[i])
6836 i++;
6837 }
6838
505682cd 6839 if (i < pf->num_alloc_vsi && !pf->vsi[i]) {
41c445ff
JB		 6840 vsi_idx = i; /* Found one! */
6841 } else {
6842 ret = -ENODEV;
493fb300 6843 goto unlock_pf; /* out of VSI slots! */
41c445ff
JB		 6844 }
6845 pf->next_vsi = ++i;
6846
6847 vsi = kzalloc(sizeof(*vsi), GFP_KERNEL);
6848 if (!vsi) {
6849 ret = -ENOMEM;
493fb300 6850 goto unlock_pf;
41c445ff
JB		 6851 }
6852 vsi->type = type;
6853 vsi->back = pf;
6854 set_bit(__I40E_DOWN, &vsi->state);
6855 vsi->flags = 0;
6856 vsi->idx = vsi_idx;
6857 vsi->rx_itr_setting = pf->rx_itr_default;
6858 vsi->tx_itr_setting = pf->tx_itr_default;
5db4cb59
ASJ		 6859 vsi->rss_table_size = (vsi->type == I40E_VSI_MAIN) ?
6860 pf->rss_table_size : 64;
41c445ff
JB		 6861 vsi->netdev_registered = false;
6862 vsi->work_limit = I40E_DEFAULT_IRQ_WORK;
6863 INIT_LIST_HEAD(&vsi->mac_filter_list);
63741846 6864 vsi->irqs_ready = false;
41c445ff 6865
9f65e15b
AD		 6866 ret = i40e_set_num_rings_in_vsi(vsi);
6867 if (ret)
6868 goto err_rings;
6869
bc7d338f 6870 ret = i40e_vsi_alloc_arrays(vsi, true);
f650a38b 6871 if (ret)
9f65e15b 6872 goto err_rings;
493fb300 6873
41c445ff
JB		 6874 /* Setup default MSIX irq handler for VSI */
6875 i40e_vsi_setup_irqhandler(vsi, i40e_msix_clean_rings);
6876
6877 pf->vsi[vsi_idx] = vsi;
6878 ret = vsi_idx;
493fb300
AD		 6879 goto unlock_pf;
6880
9f65e15b 6881err_rings:
493fb300
AD		 6882 pf->next_vsi = i - 1;
6883 kfree(vsi);
6884unlock_pf:
41c445ff
JB		 6885 mutex_unlock(&pf->switch_mutex);
6886 return ret;
6887}
6888
f650a38b
ASJ		 6889/**
6890 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
6891 * @type: VSI pointer
bc7d338f 6892 * @free_qvectors: a bool to specify if q_vectors need to be freed.
f650a38b
ASJ		 6893 *
6894 * On error: returns error code (negative)
6895 * On success: returns 0
6896 **/
bc7d338f 6897static void i40e_vsi_free_arrays(struct i40e_vsi *vsi, bool free_qvectors)
f650a38b
ASJ		 6898{
6899 /* free the ring and vector containers */
bc7d338f
ASJ		 6900 if (free_qvectors) {
6901 kfree(vsi->q_vectors);
6902 vsi->q_vectors = NULL;
6903 }
f650a38b
ASJ		 6904 kfree(vsi->tx_rings);
6905 vsi->tx_rings = NULL;
6906 vsi->rx_rings = NULL;
6907}
6908
41c445ff
JB		 6909/**
6910 * i40e_vsi_clear - Deallocate the VSI provided
6911 * @vsi: the VSI being un-configured
6912 **/
6913static int i40e_vsi_clear(struct i40e_vsi *vsi)
6914{
6915 struct i40e_pf *pf;
6916
6917 if (!vsi)
6918 return 0;
6919
6920 if (!vsi->back)
6921 goto free_vsi;
6922 pf = vsi->back;
6923
6924 mutex_lock(&pf->switch_mutex);
6925 if (!pf->vsi[vsi->idx]) {
6926 dev_err(&pf->pdev->dev, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
6927 vsi->idx, vsi->idx, vsi, vsi->type);
6928 goto unlock_vsi;
6929 }
6930
6931 if (pf->vsi[vsi->idx] != vsi) {
6932 dev_err(&pf->pdev->dev,
6933 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
6934 pf->vsi[vsi->idx]->idx,
6935 pf->vsi[vsi->idx],
6936 pf->vsi[vsi->idx]->type,
6937 vsi->idx, vsi, vsi->type);
6938 goto unlock_vsi;
6939 }
6940
b40c82e6 6941 /* updates the PF for this cleared vsi */
41c445ff
JB		 6942 i40e_put_lump(pf->qp_pile, vsi->base_queue, vsi->idx);
6943 i40e_put_lump(pf->irq_pile, vsi->base_vector, vsi->idx);
6944
bc7d338f 6945 i40e_vsi_free_arrays(vsi, true);
493fb300 6946
41c445ff
JB		 6947 pf->vsi[vsi->idx] = NULL;
6948 if (vsi->idx < pf->next_vsi)
6949 pf->next_vsi = vsi->idx;
6950
6951unlock_vsi:
6952 mutex_unlock(&pf->switch_mutex);
6953free_vsi:
6954 kfree(vsi);
6955
6956 return 0;
6957}
6958
9f65e15b
AD		 6959/**
6960 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
6961 * @vsi: the VSI being cleaned
6962 **/
be1d5eea 6963static void i40e_vsi_clear_rings(struct i40e_vsi *vsi)
9f65e15b
AD		 6964{
6965 int i;
6966
8e9dca53 6967 if (vsi->tx_rings && vsi->tx_rings[0]) {
d7397644 6968 for (i = 0; i < vsi->alloc_queue_pairs; i++) {
00403f04
MW		 6969 kfree_rcu(vsi->tx_rings[i], rcu);
6970 vsi->tx_rings[i] = NULL;
6971 vsi->rx_rings[i] = NULL;
6972 }
be1d5eea 6973 }
9f65e15b
AD		 6974}
6975
41c445ff
JB		 6976/**
6977 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
6978 * @vsi: the VSI being configured
6979 **/
6980static int i40e_alloc_rings(struct i40e_vsi *vsi)
6981{
e7046ee1 6982 struct i40e_ring *tx_ring, *rx_ring;
41c445ff 6983 struct i40e_pf *pf = vsi->back;
41c445ff
JB		 6984 int i;
6985
41c445ff 6986 /* Set basic values in the rings to be used later during open() */
d7397644 6987 for (i = 0; i < vsi->alloc_queue_pairs; i++) {
ac6c5e3d 6988 /* allocate space for both Tx and Rx in one shot */
9f65e15b
AD		 6989 tx_ring = kzalloc(sizeof(struct i40e_ring) * 2, GFP_KERNEL);
6990 if (!tx_ring)
6991 goto err_out;
41c445ff
JB		 6992
6993 tx_ring->queue_index = i;
6994 tx_ring->reg_idx = vsi->base_queue + i;
6995 tx_ring->ring_active = false;
6996 tx_ring->vsi = vsi;
6997 tx_ring->netdev = vsi->netdev;
6998 tx_ring->dev = &pf->pdev->dev;
6999 tx_ring->count = vsi->num_desc;
7000 tx_ring->size = 0;
7001 tx_ring->dcb_tc = 0;
9f65e15b 7002 vsi->tx_rings[i] = tx_ring;
41c445ff 7003
9f65e15b 7004 rx_ring = &tx_ring[1];
41c445ff
JB		 7005 rx_ring->queue_index = i;
7006 rx_ring->reg_idx = vsi->base_queue + i;
7007 rx_ring->ring_active = false;
7008 rx_ring->vsi = vsi;
7009 rx_ring->netdev = vsi->netdev;
7010 rx_ring->dev = &pf->pdev->dev;
7011 rx_ring->count = vsi->num_desc;
7012 rx_ring->size = 0;
7013 rx_ring->dcb_tc = 0;
7014 if (pf->flags & I40E_FLAG_16BYTE_RX_DESC_ENABLED)
7015 set_ring_16byte_desc_enabled(rx_ring);
7016 else
7017 clear_ring_16byte_desc_enabled(rx_ring);
9f65e15b 7018 vsi->rx_rings[i] = rx_ring;
41c445ff
JB		 7019 }
7020
7021 return 0;
9f65e15b
AD		 7022
7023err_out:
7024 i40e_vsi_clear_rings(vsi);
7025 return -ENOMEM;
41c445ff
JB		 7026}
7027
7028/**
7029 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7030 * @pf: board private structure
7031 * @vectors: the number of MSI-X vectors to request
7032 *
7033 * Returns the number of vectors reserved, or error
7034 **/
7035static int i40e_reserve_msix_vectors(struct i40e_pf *pf, int vectors)
7036{
7b37f376
AG		 7037 vectors = pci_enable_msix_range(pf->pdev, pf->msix_entries,
7038 I40E_MIN_MSIX, vectors);
7039 if (vectors < 0) {
41c445ff 7040 dev_info(&pf->pdev->dev,
7b37f376 7041 "MSI-X vector reservation failed: %d\n", vectors);
41c445ff
JB		 7042 vectors = 0;
7043 }
7044
7045 return vectors;
7046}
7047
7048/**
7049 * i40e_init_msix - Setup the MSIX capability
7050 * @pf: board private structure
7051 *
7052 * Work with the OS to set up the MSIX vectors needed.
7053 *
3b444399 7054 * Returns the number of vectors reserved or negative on failure
41c445ff
JB		 7055 **/
7056static int i40e_init_msix(struct i40e_pf *pf)
7057{
41c445ff 7058 struct i40e_hw *hw = &pf->hw;
1e200e4a 7059 int vectors_left;
41c445ff 7060 int v_budget, i;
3b444399 7061 int v_actual;
41c445ff
JB		 7062
7063 if (!(pf->flags & I40E_FLAG_MSIX_ENABLED))
7064 return -ENODEV;
7065
7066 /* The number of vectors we'll request will be comprised of:
7067 * - Add 1 for "other" cause for Admin Queue events, etc.
7068 * - The number of LAN queue pairs
f8ff1464
ASJ		 7069 * - Queues being used for RSS.
7070 * We don't need as many as max_rss_size vectors.
7071 * use rss_size instead in the calculation since that
7072 * is governed by number of cpus in the system.
7073 * - assumes symmetric Tx/Rx pairing
41c445ff 7074 * - The number of VMDq pairs
38e00438
VD		 7075#ifdef I40E_FCOE
7076 * - The number of FCOE qps.
7077#endif
41c445ff
JB		 7078 * Once we count this up, try the request.
7079 *
7080 * If we can't get what we want, we'll simplify to nearly nothing
7081 * and try again. If that still fails, we punt.
7082 */
1e200e4a
SN		 7083 vectors_left = hw->func_caps.num_msix_vectors;
7084 v_budget = 0;
7085
7086 /* reserve one vector for miscellaneous handler */
7087 if (vectors_left) {
7088 v_budget++;
7089 vectors_left--;
7090 }
7091
7092 /* reserve vectors for the main PF traffic queues */
7093 pf->num_lan_msix = min_t(int, num_online_cpus(), vectors_left);
7094 vectors_left -= pf->num_lan_msix;
7095 v_budget += pf->num_lan_msix;
7096
7097 /* reserve one vector for sideband flow director */
7098 if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
7099 if (vectors_left) {
7100 v_budget++;
7101 vectors_left--;
7102 } else {
7103 pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
7104 }
7105 }
83840e4b 7106
38e00438 7107#ifdef I40E_FCOE
1e200e4a 7108 /* can we reserve enough for FCoE? */
38e00438 7109 if (pf->flags & I40E_FLAG_FCOE_ENABLED) {
1e200e4a
SN		 7110 if (!vectors_left)
7111 pf->num_fcoe_msix = 0;
7112 else if (vectors_left >= pf->num_fcoe_qps)
7113 pf->num_fcoe_msix = pf->num_fcoe_qps;
7114 else
7115 pf->num_fcoe_msix = 1;
38e00438 7116 v_budget += pf->num_fcoe_msix;
1e200e4a 7117 vectors_left -= pf->num_fcoe_msix;
38e00438 7118 }
1e200e4a 7119
38e00438 7120#endif
1e200e4a
SN		 7121 /* any vectors left over go for VMDq support */
7122 if (pf->flags & I40E_FLAG_VMDQ_ENABLED) {
7123 int vmdq_vecs_wanted = pf->num_vmdq_vsis * pf->num_vmdq_qps;
7124 int vmdq_vecs = min_t(int, vectors_left, vmdq_vecs_wanted);
7125
7126 /* if we're short on vectors for what's desired, we limit
7127 * the queues per vmdq. If this is still more than are
7128 * available, the user will need to change the number of
7129 * queues/vectors used by the PF later with the ethtool
7130 * channels command
7131 */
7132 if (vmdq_vecs < vmdq_vecs_wanted)
7133 pf->num_vmdq_qps = 1;
7134 pf->num_vmdq_msix = pf->num_vmdq_qps;
7135
7136 v_budget += vmdq_vecs;
7137 vectors_left -= vmdq_vecs;
7138 }
41c445ff
JB		 7139
7140 pf->msix_entries = kcalloc(v_budget, sizeof(struct msix_entry),
7141 GFP_KERNEL);
7142 if (!pf->msix_entries)
7143 return -ENOMEM;
7144
7145 for (i = 0; i < v_budget; i++)
7146 pf->msix_entries[i].entry = i;
3b444399 7147 v_actual = i40e_reserve_msix_vectors(pf, v_budget);
a34977ba 7148
3b444399 7149 if (v_actual != v_budget) {
a34977ba
ASJ		 7150 /* If we have limited resources, we will start with no vectors
7151 * for the special features and then allocate vectors to some
7152 * of these features based on the policy and at the end disable
7153 * the features that did not get any vectors.
7154 */
38e00438
VD		 7155#ifdef I40E_FCOE
7156 pf->num_fcoe_qps = 0;
7157 pf->num_fcoe_msix = 0;
7158#endif
a34977ba
ASJ		 7159 pf->num_vmdq_msix = 0;
7160 }
7161
3b444399 7162 if (v_actual < I40E_MIN_MSIX) {
41c445ff
JB		 7163 pf->flags &= ~I40E_FLAG_MSIX_ENABLED;
7164 kfree(pf->msix_entries);
7165 pf->msix_entries = NULL;
7166 return -ENODEV;
7167
3b444399 7168 } else if (v_actual == I40E_MIN_MSIX) {
41c445ff 7169 /* Adjust for minimal MSIX use */
41c445ff
JB		 7170 pf->num_vmdq_vsis = 0;
7171 pf->num_vmdq_qps = 0;
41c445ff
JB		 7172 pf->num_lan_qps = 1;
7173 pf->num_lan_msix = 1;
7174
3b444399
SN		 7175 } else if (v_actual != v_budget) {
7176 int vec;
7177
a34977ba 7178 /* reserve the misc vector */
3b444399 7179 vec = v_actual - 1;
a34977ba 7180
41c445ff
JB		 7181 /* Scale vector usage down */
7182 pf->num_vmdq_msix = 1; /* force VMDqs to only one vector */
a34977ba 7183 pf->num_vmdq_vsis = 1;
1e200e4a
SN		 7184 pf->num_vmdq_qps = 1;
7185 pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
41c445ff
JB		 7186
7187 /* partition out the remaining vectors */
7188 switch (vec) {
7189 case 2:
41c445ff
JB		 7190 pf->num_lan_msix = 1;
7191 break;
7192 case 3:
38e00438
VD		 7193#ifdef I40E_FCOE
7194 /* give one vector to FCoE */
7195 if (pf->flags & I40E_FLAG_FCOE_ENABLED) {
7196 pf->num_lan_msix = 1;
7197 pf->num_fcoe_msix = 1;
7198 }
7199#else
41c445ff 7200 pf->num_lan_msix = 2;
38e00438 7201#endif
41c445ff
JB		 7202 break;
7203 default:
38e00438
VD		 7204#ifdef I40E_FCOE
7205 /* give one vector to FCoE */
7206 if (pf->flags & I40E_FLAG_FCOE_ENABLED) {
7207 pf->num_fcoe_msix = 1;
7208 vec--;
7209 }
7210#endif
1e200e4a
SN		 7211 /* give the rest to the PF */
7212 pf->num_lan_msix = min_t(int, vec, pf->num_lan_qps);
41c445ff
JB		 7213 break;
7214 }
7215 }
7216
a34977ba
ASJ		 7217 if ((pf->flags & I40E_FLAG_VMDQ_ENABLED) &&
7218 (pf->num_vmdq_msix == 0)) {
7219 dev_info(&pf->pdev->dev, "VMDq disabled, not enough MSI-X vectors\n");
7220 pf->flags &= ~I40E_FLAG_VMDQ_ENABLED;
7221 }
38e00438
VD		 7222#ifdef I40E_FCOE
7223
7224 if ((pf->flags & I40E_FLAG_FCOE_ENABLED) && (pf->num_fcoe_msix == 0)) {
7225 dev_info(&pf->pdev->dev, "FCOE disabled, not enough MSI-X vectors\n");
7226 pf->flags &= ~I40E_FLAG_FCOE_ENABLED;
7227 }
7228#endif
3b444399 7229 return v_actual;
41c445ff
JB		 7230}
7231
493fb300 7232/**
90e04070 7233 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
493fb300
AD		 7234 * @vsi: the VSI being configured
7235 * @v_idx: index of the vector in the vsi struct
7236 *
7237 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7238 **/
90e04070 7239static int i40e_vsi_alloc_q_vector(struct i40e_vsi *vsi, int v_idx)
493fb300
AD		 7240{
7241 struct i40e_q_vector *q_vector;
7242
7243 /* allocate q_vector */
7244 q_vector = kzalloc(sizeof(struct i40e_q_vector), GFP_KERNEL);
7245 if (!q_vector)
7246 return -ENOMEM;
7247
7248 q_vector->vsi = vsi;
7249 q_vector->v_idx = v_idx;
7250 cpumask_set_cpu(v_idx, &q_vector->affinity_mask);
7251 if (vsi->netdev)
7252 netif_napi_add(vsi->netdev, &q_vector->napi,
eefeacee 7253 i40e_napi_poll, NAPI_POLL_WEIGHT);
493fb300 7254
cd0b6fa6
AD		 7255 q_vector->rx.latency_range = I40E_LOW_LATENCY;
7256 q_vector->tx.latency_range = I40E_LOW_LATENCY;
7257
493fb300
AD		 7258 /* tie q_vector and vsi together */
7259 vsi->q_vectors[v_idx] = q_vector;
7260
7261 return 0;
7262}
7263
41c445ff 7264/**
90e04070 7265 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
41c445ff
JB		 7266 * @vsi: the VSI being configured
7267 *
7268 * We allocate one q_vector per queue interrupt. If allocation fails we
7269 * return -ENOMEM.
7270 **/
90e04070 7271static int i40e_vsi_alloc_q_vectors(struct i40e_vsi *vsi)
41c445ff
JB		 7272{
7273 struct i40e_pf *pf = vsi->back;
7274 int v_idx, num_q_vectors;
493fb300 7275 int err;
41c445ff
JB		 7276
7277 /* if not MSIX, give the one vector only to the LAN VSI */
7278 if (pf->flags & I40E_FLAG_MSIX_ENABLED)
7279 num_q_vectors = vsi->num_q_vectors;
7280 else if (vsi == pf->vsi[pf->lan_vsi])
7281 num_q_vectors = 1;
7282 else
7283 return -EINVAL;
7284
41c445ff 7285 for (v_idx = 0; v_idx < num_q_vectors; v_idx++) {
90e04070 7286 err = i40e_vsi_alloc_q_vector(vsi, v_idx);
493fb300
AD		 7287 if (err)
7288 goto err_out;
41c445ff
JB		 7289 }
7290
7291 return 0;
493fb300
AD		 7292
7293err_out:
7294 while (v_idx--)
7295 i40e_free_q_vector(vsi, v_idx);
7296
7297 return err;
41c445ff
JB		 7298}
7299
7300/**
7301 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7302 * @pf: board private structure to initialize
7303 **/
c1147280 7304static int i40e_init_interrupt_scheme(struct i40e_pf *pf)
41c445ff 7305{
3b444399
SN		 7306 int vectors = 0;
7307 ssize_t size;
41c445ff
JB		 7308
7309 if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
3b444399
SN		 7310 vectors = i40e_init_msix(pf);
7311 if (vectors < 0) {
60ea5f83 7312 pf->flags &= ~(I40E_FLAG_MSIX_ENABLED |
38e00438
VD		 7313#ifdef I40E_FCOE
7314 I40E_FLAG_FCOE_ENABLED |
7315#endif
60ea5f83 7316 I40E_FLAG_RSS_ENABLED |
4d9b6043 7317 I40E_FLAG_DCB_CAPABLE |
60ea5f83
JB		 7318 I40E_FLAG_SRIOV_ENABLED |
7319 I40E_FLAG_FD_SB_ENABLED |
7320 I40E_FLAG_FD_ATR_ENABLED |
7321 I40E_FLAG_VMDQ_ENABLED);
41c445ff
JB		 7322
7323 /* rework the queue expectations without MSIX */
7324 i40e_determine_queue_usage(pf);
7325 }
7326 }
7327
7328 if (!(pf->flags & I40E_FLAG_MSIX_ENABLED) &&
7329 (pf->flags & I40E_FLAG_MSI_ENABLED)) {
77fa28be 7330 dev_info(&pf->pdev->dev, "MSI-X not available, trying MSI\n");
3b444399
SN		 7331 vectors = pci_enable_msi(pf->pdev);
7332 if (vectors < 0) {
7333 dev_info(&pf->pdev->dev, "MSI init failed - %d\n",
7334 vectors);
41c445ff
JB		 7335 pf->flags &= ~I40E_FLAG_MSI_ENABLED;
7336 }
3b444399 7337 vectors = 1; /* one MSI or Legacy vector */
41c445ff
JB		 7338 }
7339
958a3e3b 7340 if (!(pf->flags & (I40E_FLAG_MSIX_ENABLED | I40E_FLAG_MSI_ENABLED)))
77fa28be 7341 dev_info(&pf->pdev->dev, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
958a3e3b 7342
3b444399
SN		 7343 /* set up vector assignment tracking */
7344 size = sizeof(struct i40e_lump_tracking) + (sizeof(u16) * vectors);
7345 pf->irq_pile = kzalloc(size, GFP_KERNEL);
c1147280
JB		 7346 if (!pf->irq_pile) {
7347 dev_err(&pf->pdev->dev, "error allocating irq_pile memory\n");
7348 return -ENOMEM;
7349 }
3b444399
SN		 7350 pf->irq_pile->num_entries = vectors;
7351 pf->irq_pile->search_hint = 0;
7352
c1147280 7353 /* track first vector for misc interrupts, ignore return */
3b444399 7354 (void)i40e_get_lump(pf, pf->irq_pile, 1, I40E_PILE_VALID_BIT - 1);
c1147280
JB		 7355
7356 return 0;
41c445ff
JB		 7357}
7358
7359/**
7360 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7361 * @pf: board private structure
7362 *
7363 * This sets up the handler for MSIX 0, which is used to manage the
7364 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7365 * when in MSI or Legacy interrupt mode.
7366 **/
7367static int i40e_setup_misc_vector(struct i40e_pf *pf)
7368{
7369 struct i40e_hw *hw = &pf->hw;
7370 int err = 0;
7371
7372 /* Only request the irq if this is the first time through, and
7373 * not when we're rebuilding after a Reset
7374 */
7375 if (!test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state)) {
7376 err = request_irq(pf->msix_entries[0].vector,
b294ac70 7377 i40e_intr, 0, pf->int_name, pf);
41c445ff
JB		 7378 if (err) {
7379 dev_info(&pf->pdev->dev,
77fa28be 7380 "request_irq for %s failed: %d\n",
b294ac70 7381 pf->int_name, err);
41c445ff
JB		 7382 return -EFAULT;
7383 }
7384 }
7385
ab437b5a 7386 i40e_enable_misc_int_causes(pf);
41c445ff
JB		 7387
7388 /* associate no queues to the misc vector */
7389 wr32(hw, I40E_PFINT_LNKLST0, I40E_QUEUE_END_OF_LIST);
7390 wr32(hw, I40E_PFINT_ITR0(I40E_RX_ITR), I40E_ITR_8K);
7391
7392 i40e_flush(hw);
7393
7394 i40e_irq_dynamic_enable_icr0(pf);
7395
7396 return err;
7397}
7398
7399/**
7400 * i40e_config_rss - Prepare for RSS if used
7401 * @pf: board private structure
7402 **/
7403static int i40e_config_rss(struct i40e_pf *pf)
7404{
22f258a1 7405 u32 rss_key[I40E_PFQF_HKEY_MAX_INDEX + 1];
66ddcffb 7406 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
4617e8c0
ASJ		 7407 struct i40e_hw *hw = &pf->hw;
7408 u32 lut = 0;
7409 int i, j;
7410 u64 hena;
e157ea30 7411 u32 reg_val;
41c445ff 7412
22f258a1 7413 netdev_rss_key_fill(rss_key, sizeof(rss_key));
41c445ff 7414 for (i = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++)
22f258a1 7415 wr32(hw, I40E_PFQF_HKEY(i), rss_key[i]);
41c445ff
JB		 7416
7417 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7418 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
7419 ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);
12dc4fe3 7420 hena |= I40E_DEFAULT_RSS_HENA;
41c445ff
JB		 7421 wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
7422 wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
7423
66ddcffb
ASJ		 7424 vsi->rss_size = min_t(int, pf->rss_size, vsi->num_queue_pairs);
7425
e157ea30
CW		 7426 /* Check capability and Set table size and register per hw expectation*/
7427 reg_val = rd32(hw, I40E_PFQF_CTL_0);
d9e894ee 7428 if (pf->rss_table_size == 512)
e157ea30 7429 reg_val |= I40E_PFQF_CTL_0_HASHLUTSIZE_512;
d9e894ee 7430 else
e157ea30 7431 reg_val &= ~I40E_PFQF_CTL_0_HASHLUTSIZE_512;
e157ea30
CW		 7432 wr32(hw, I40E_PFQF_CTL_0, reg_val);
7433
41c445ff 7434 /* Populate the LUT with max no. of queues in round robin fashion */
e157ea30 7435 for (i = 0, j = 0; i < pf->rss_table_size; i++, j++) {
41c445ff
JB		 7436
7437 /* The assumption is that lan qp count will be the highest
7438 * qp count for any PF VSI that needs RSS.
7439 * If multiple VSIs need RSS support, all the qp counts
7440 * for those VSIs should be a power of 2 for RSS to work.
7441 * If LAN VSI is the only consumer for RSS then this requirement
7442 * is not necessary.
7443 */
66ddcffb 7444 if (j == vsi->rss_size)
41c445ff
JB		 7445 j = 0;
7446 /* lut = 4-byte sliding window of 4 lut entries */
7447 lut = (lut << 8) | (j &
7448 ((0x1 << pf->hw.func_caps.rss_table_entry_width) - 1));
7449 /* On i = 3, we have 4 entries in lut; write to the register */
7450 if ((i & 3) == 3)
7451 wr32(hw, I40E_PFQF_HLUT(i >> 2), lut);
7452 }
7453 i40e_flush(hw);
7454
7455 return 0;
7456}
7457
f8ff1464
ASJ		 7458/**
7459 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7460 * @pf: board private structure
7461 * @queue_count: the requested queue count for rss.
7462 *
7463 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7464 * count which may be different from the requested queue count.
7465 **/
7466int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count)
7467{
9a3bd2f1
ASJ		 7468 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
7469 int new_rss_size;
7470
f8ff1464
ASJ		 7471 if (!(pf->flags & I40E_FLAG_RSS_ENABLED))
7472 return 0;
7473
9a3bd2f1 7474 new_rss_size = min_t(int, queue_count, pf->rss_size_max);
f8ff1464 7475
9a3bd2f1
ASJ		 7476 if (queue_count != vsi->num_queue_pairs) {
7477 vsi->req_queue_pairs = queue_count;
f8ff1464
ASJ		 7478 i40e_prep_for_reset(pf);
7479
9a3bd2f1 7480 pf->rss_size = new_rss_size;
f8ff1464
ASJ		 7481
7482 i40e_reset_and_rebuild(pf, true);
7483 i40e_config_rss(pf);
7484 }
7485 dev_info(&pf->pdev->dev, "RSS count: %d\n", pf->rss_size);
7486 return pf->rss_size;
7487}
7488
f4492db1
GR		 7489/**
7490 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
7491 * @pf: board private structure
7492 **/
7493i40e_status i40e_get_npar_bw_setting(struct i40e_pf *pf)
7494{
7495 i40e_status status;
7496 bool min_valid, max_valid;
7497 u32 max_bw, min_bw;
7498
7499 status = i40e_read_bw_from_alt_ram(&pf->hw, &max_bw, &min_bw,
7500 &min_valid, &max_valid);
7501
7502 if (!status) {
7503 if (min_valid)
7504 pf->npar_min_bw = min_bw;
7505 if (max_valid)
7506 pf->npar_max_bw = max_bw;
7507 }
7508
7509 return status;
7510}
7511
7512/**
7513 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
7514 * @pf: board private structure
7515 **/
7516i40e_status i40e_set_npar_bw_setting(struct i40e_pf *pf)
7517{
7518 struct i40e_aqc_configure_partition_bw_data bw_data;
7519 i40e_status status;
7520
b40c82e6 7521 /* Set the valid bit for this PF */
f4492db1
GR		 7522 bw_data.pf_valid_bits = cpu_to_le16(1 << pf->hw.pf_id);
7523 bw_data.max_bw[pf->hw.pf_id] = pf->npar_max_bw & I40E_ALT_BW_VALUE_MASK;
7524 bw_data.min_bw[pf->hw.pf_id] = pf->npar_min_bw & I40E_ALT_BW_VALUE_MASK;
7525
7526 /* Set the new bandwidths */
7527 status = i40e_aq_configure_partition_bw(&pf->hw, &bw_data, NULL);
7528
7529 return status;
7530}
7531
7532/**
7533 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
7534 * @pf: board private structure
7535 **/
7536i40e_status i40e_commit_npar_bw_setting(struct i40e_pf *pf)
7537{
7538 /* Commit temporary BW setting to permanent NVM image */
7539 enum i40e_admin_queue_err last_aq_status;
7540 i40e_status ret;
7541 u16 nvm_word;
7542
7543 if (pf->hw.partition_id != 1) {
7544 dev_info(&pf->pdev->dev,
7545 "Commit BW only works on partition 1! This is partition %d",
7546 pf->hw.partition_id);
7547 ret = I40E_NOT_SUPPORTED;
7548 goto bw_commit_out;
7549 }
7550
7551 /* Acquire NVM for read access */
7552 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
7553 last_aq_status = pf->hw.aq.asq_last_status;
7554 if (ret) {
7555 dev_info(&pf->pdev->dev,
7556 "Cannot acquire NVM for read access, err %d: aq_err %d\n",
7557 ret, last_aq_status);
7558 goto bw_commit_out;
7559 }
7560
7561 /* Read word 0x10 of NVM - SW compatibility word 1 */
7562 ret = i40e_aq_read_nvm(&pf->hw,
7563 I40E_SR_NVM_CONTROL_WORD,
7564 0x10, sizeof(nvm_word), &nvm_word,
7565 false, NULL);
7566 /* Save off last admin queue command status before releasing
7567 * the NVM
7568 */
7569 last_aq_status = pf->hw.aq.asq_last_status;
7570 i40e_release_nvm(&pf->hw);
7571 if (ret) {
7572 dev_info(&pf->pdev->dev, "NVM read error, err %d aq_err %d\n",
7573 ret, last_aq_status);
7574 goto bw_commit_out;
7575 }
7576
7577 /* Wait a bit for NVM release to complete */
7578 msleep(50);
7579
7580 /* Acquire NVM for write access */
7581 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_WRITE);
7582 last_aq_status = pf->hw.aq.asq_last_status;
7583 if (ret) {
7584 dev_info(&pf->pdev->dev,
7585 "Cannot acquire NVM for write access, err %d: aq_err %d\n",
7586 ret, last_aq_status);
7587 goto bw_commit_out;
7588 }
7589 /* Write it back out unchanged to initiate update NVM,
7590 * which will force a write of the shadow (alt) RAM to
7591 * the NVM - thus storing the bandwidth values permanently.
7592 */
7593 ret = i40e_aq_update_nvm(&pf->hw,
7594 I40E_SR_NVM_CONTROL_WORD,
7595 0x10, sizeof(nvm_word),
7596 &nvm_word, true, NULL);
7597 /* Save off last admin queue command status before releasing
7598 * the NVM
7599 */
7600 last_aq_status = pf->hw.aq.asq_last_status;
7601 i40e_release_nvm(&pf->hw);
7602 if (ret)
7603 dev_info(&pf->pdev->dev,
7604 "BW settings NOT SAVED, err %d aq_err %d\n",
7605 ret, last_aq_status);
7606bw_commit_out:
7607
7608 return ret;
7609}
7610
41c445ff
JB		 7611/**
7612 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7613 * @pf: board private structure to initialize
7614 *
7615 * i40e_sw_init initializes the Adapter private data structure.
7616 * Fields are initialized based on PCI device information and
7617 * OS network device settings (MTU size).
7618 **/
7619static int i40e_sw_init(struct i40e_pf *pf)
7620{
7621 int err = 0;
7622 int size;
7623
7624 pf->msg_enable = netif_msg_init(I40E_DEFAULT_MSG_ENABLE,
7625 (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK));
2759997b 7626 pf->hw.debug_mask = pf->msg_enable | I40E_DEBUG_DIAG;
41c445ff
JB		 7627 if (debug != -1 && debug != I40E_DEFAULT_MSG_ENABLE) {
7628 if (I40E_DEBUG_USER & debug)
7629 pf->hw.debug_mask = debug;
7630 pf->msg_enable = netif_msg_init((debug & ~I40E_DEBUG_USER),
7631 I40E_DEFAULT_MSG_ENABLE);
7632 }
7633
7634 /* Set default capability flags */
7635 pf->flags = I40E_FLAG_RX_CSUM_ENABLED |
7636 I40E_FLAG_MSI_ENABLED |
2bc7ee8a
MW		 7637 I40E_FLAG_MSIX_ENABLED;
7638
7639 if (iommu_present(&pci_bus_type))
7640 pf->flags |= I40E_FLAG_RX_PS_ENABLED;
7641 else
7642 pf->flags |= I40E_FLAG_RX_1BUF_ENABLED;
41c445ff 7643
ca99eb99
MW		 7644 /* Set default ITR */
7645 pf->rx_itr_default = I40E_ITR_DYNAMIC | I40E_ITR_RX_DEF;
7646 pf->tx_itr_default = I40E_ITR_DYNAMIC | I40E_ITR_TX_DEF;
7647
7134f9ce
JB		 7648 /* Depending on PF configurations, it is possible that the RSS
7649 * maximum might end up larger than the available queues
7650 */
41c445ff 7651 pf->rss_size_max = 0x1 << pf->hw.func_caps.rss_table_entry_width;
ec9a7db7 7652 pf->rss_size = 1;
5db4cb59 7653 pf->rss_table_size = pf->hw.func_caps.rss_table_size;
7134f9ce
JB		 7654 pf->rss_size_max = min_t(int, pf->rss_size_max,
7655 pf->hw.func_caps.num_tx_qp);
41c445ff
JB		 7656 if (pf->hw.func_caps.rss) {
7657 pf->flags |= I40E_FLAG_RSS_ENABLED;
bf051a3b 7658 pf->rss_size = min_t(int, pf->rss_size_max, num_online_cpus());
41c445ff
JB		 7659 }
7660
2050bc65
CS		 7661 /* MFP mode enabled */
7662 if (pf->hw.func_caps.npar_enable || pf->hw.func_caps.mfp_mode_1) {
7663 pf->flags |= I40E_FLAG_MFP_ENABLED;
7664 dev_info(&pf->pdev->dev, "MFP mode Enabled\n");
f4492db1
GR		 7665 if (i40e_get_npar_bw_setting(pf))
7666 dev_warn(&pf->pdev->dev,
7667 "Could not get NPAR bw settings\n");
7668 else
7669 dev_info(&pf->pdev->dev,
7670 "Min BW = %8.8x, Max BW = %8.8x\n",
7671 pf->npar_min_bw, pf->npar_max_bw);
2050bc65
CS		 7672 }
7673
cbf61325
ASJ		 7674 /* FW/NVM is not yet fixed in this regard */
7675 if ((pf->hw.func_caps.fd_filters_guaranteed > 0) ||
7676 (pf->hw.func_caps.fd_filters_best_effort > 0)) {
7677 pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
7678 pf->atr_sample_rate = I40E_DEFAULT_ATR_SAMPLE_RATE;
b40c82e6 7679 /* Setup a counter for fd_atr per PF */
433c47de 7680 pf->fd_atr_cnt_idx = I40E_FD_ATR_STAT_IDX(pf->hw.pf_id);
cbf61325 7681 if (!(pf->flags & I40E_FLAG_MFP_ENABLED)) {
60ea5f83 7682 pf->flags |= I40E_FLAG_FD_SB_ENABLED;
b40c82e6 7683 /* Setup a counter for fd_sb per PF */
433c47de 7684 pf->fd_sb_cnt_idx = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
cbf61325
ASJ		 7685 } else {
7686 dev_info(&pf->pdev->dev,
0b67584f 7687 "Flow Director Sideband mode Disabled in MFP mode\n");
41c445ff 7688 }
cbf61325
ASJ		 7689 pf->fdir_pf_filter_count =
7690 pf->hw.func_caps.fd_filters_guaranteed;
7691 pf->hw.fdir_shared_filter_count =
7692 pf->hw.func_caps.fd_filters_best_effort;
41c445ff
JB		 7693 }
7694
7695 if (pf->hw.func_caps.vmdq) {
7696 pf->flags |= I40E_FLAG_VMDQ_ENABLED;
7697 pf->num_vmdq_vsis = I40E_DEFAULT_NUM_VMDQ_VSI;
7698 pf->num_vmdq_qps = I40E_DEFAULT_QUEUES_PER_VMDQ;
7699 }
7700
38e00438
VD		 7701#ifdef I40E_FCOE
7702 err = i40e_init_pf_fcoe(pf);
7703 if (err)
7704 dev_info(&pf->pdev->dev, "init_pf_fcoe failed: %d\n", err);
7705
7706#endif /* I40E_FCOE */
41c445ff 7707#ifdef CONFIG_PCI_IOV
ba252f13 7708 if (pf->hw.func_caps.num_vfs && pf->hw.partition_id == 1) {
41c445ff
JB		 7709 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
7710 pf->flags |= I40E_FLAG_SRIOV_ENABLED;
7711 pf->num_req_vfs = min_t(int,
7712 pf->hw.func_caps.num_vfs,
7713 I40E_MAX_VF_COUNT);
7714 }
7715#endif /* CONFIG_PCI_IOV */
7716 pf->eeprom_version = 0xDEAD;
7717 pf->lan_veb = I40E_NO_VEB;
7718 pf->lan_vsi = I40E_NO_VSI;
7719
7720 /* set up queue assignment tracking */
7721 size = sizeof(struct i40e_lump_tracking)
7722 + (sizeof(u16) * pf->hw.func_caps.num_tx_qp);
7723 pf->qp_pile = kzalloc(size, GFP_KERNEL);
7724 if (!pf->qp_pile) {
7725 err = -ENOMEM;
7726 goto sw_init_done;
7727 }
7728 pf->qp_pile->num_entries = pf->hw.func_caps.num_tx_qp;
7729 pf->qp_pile->search_hint = 0;
7730
327fe04b
ASJ		 7731 pf->tx_timeout_recovery_level = 1;
7732
41c445ff
JB		 7733 mutex_init(&pf->switch_mutex);
7734
c668a12c
GR		 7735 /* If NPAR is enabled nudge the Tx scheduler */
7736 if (pf->hw.func_caps.npar_enable && (!i40e_get_npar_bw_setting(pf)))
7737 i40e_set_npar_bw_setting(pf);
7738
41c445ff
JB		 7739sw_init_done:
7740 return err;
7741}
7742
7c3c288b
ASJ		 7743/**
7744 * i40e_set_ntuple - set the ntuple feature flag and take action
7745 * @pf: board private structure to initialize
7746 * @features: the feature set that the stack is suggesting
7747 *
7748 * returns a bool to indicate if reset needs to happen
7749 **/
7750bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features)
7751{
7752 bool need_reset = false;
7753
7754 /* Check if Flow Director n-tuple support was enabled or disabled. If
7755 * the state changed, we need to reset.
7756 */
7757 if (features & NETIF_F_NTUPLE) {
7758 /* Enable filters and mark for reset */
7759 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
7760 need_reset = true;
7761 pf->flags |= I40E_FLAG_FD_SB_ENABLED;
7762 } else {
7763 /* turn off filters, mark for reset and clear SW filter list */
7764 if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
7765 need_reset = true;
7766 i40e_fdir_filter_exit(pf);
7767 }
7768 pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
8a4f34fb 7769 pf->auto_disable_flags &= ~I40E_FLAG_FD_SB_ENABLED;
1e1be8f6
ASJ		 7770 /* reset fd counters */
7771 pf->fd_add_err = pf->fd_atr_cnt = pf->fd_tcp_rule = 0;
7772 pf->fdir_pf_active_filters = 0;
7773 pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
7774 dev_info(&pf->pdev->dev, "ATR re-enabled.\n");
8a4f34fb
ASJ		 7775 /* if ATR was auto disabled it can be re-enabled. */
7776 if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) &&
7777 (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED))
7778 pf->auto_disable_flags &= ~I40E_FLAG_FD_ATR_ENABLED;
7c3c288b
ASJ		 7779 }
7780 return need_reset;
7781}
7782
41c445ff
JB		 7783/**
7784 * i40e_set_features - set the netdev feature flags
7785 * @netdev: ptr to the netdev being adjusted
7786 * @features: the feature set that the stack is suggesting
7787 **/
7788static int i40e_set_features(struct net_device *netdev,
7789 netdev_features_t features)
7790{
7791 struct i40e_netdev_priv *np = netdev_priv(netdev);
7792 struct i40e_vsi *vsi = np->vsi;
7c3c288b
ASJ		 7793 struct i40e_pf *pf = vsi->back;
7794 bool need_reset;
41c445ff
JB		 7795
7796 if (features & NETIF_F_HW_VLAN_CTAG_RX)
7797 i40e_vlan_stripping_enable(vsi);
7798 else
7799 i40e_vlan_stripping_disable(vsi);
7800
7c3c288b
ASJ		 7801 need_reset = i40e_set_ntuple(pf, features);
7802
7803 if (need_reset)
7804 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
7805
41c445ff
JB		 7806 return 0;
7807}
7808
a1c9a9d9
JK		 7809#ifdef CONFIG_I40E_VXLAN
7810/**
7811 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
7812 * @pf: board private structure
7813 * @port: The UDP port to look up
7814 *
7815 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
7816 **/
7817static u8 i40e_get_vxlan_port_idx(struct i40e_pf *pf, __be16 port)
7818{
7819 u8 i;
7820
7821 for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) {
7822 if (pf->vxlan_ports[i] == port)
7823 return i;
7824 }
7825
7826 return i;
7827}
7828
7829/**
7830 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
7831 * @netdev: This physical port's netdev
7832 * @sa_family: Socket Family that VXLAN is notifying us about
7833 * @port: New UDP port number that VXLAN started listening to
7834 **/
7835static void i40e_add_vxlan_port(struct net_device *netdev,
7836 sa_family_t sa_family, __be16 port)
7837{
7838 struct i40e_netdev_priv *np = netdev_priv(netdev);
7839 struct i40e_vsi *vsi = np->vsi;
7840 struct i40e_pf *pf = vsi->back;
7841 u8 next_idx;
7842 u8 idx;
7843
7844 if (sa_family == AF_INET6)
7845 return;
7846
7847 idx = i40e_get_vxlan_port_idx(pf, port);
7848
7849 /* Check if port already exists */
7850 if (idx < I40E_MAX_PF_UDP_OFFLOAD_PORTS) {
c22c06c8
SN		 7851 netdev_info(netdev, "vxlan port %d already offloaded\n",
7852 ntohs(port));
a1c9a9d9
JK		 7853 return;
7854 }
7855
7856 /* Now check if there is space to add the new port */
7857 next_idx = i40e_get_vxlan_port_idx(pf, 0);
7858
7859 if (next_idx == I40E_MAX_PF_UDP_OFFLOAD_PORTS) {
c22c06c8 7860 netdev_info(netdev, "maximum number of vxlan UDP ports reached, not adding port %d\n",
a1c9a9d9
JK		 7861 ntohs(port));
7862 return;
7863 }
7864
7865 /* New port: add it and mark its index in the bitmap */
7866 pf->vxlan_ports[next_idx] = port;
7867 pf->pending_vxlan_bitmap |= (1 << next_idx);
a1c9a9d9 7868 pf->flags |= I40E_FLAG_VXLAN_FILTER_SYNC;
c22c06c8
SN		 7869
7870 dev_info(&pf->pdev->dev, "adding vxlan port %d\n", ntohs(port));
a1c9a9d9
JK		 7871}
7872
7873/**
7874 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
7875 * @netdev: This physical port's netdev
7876 * @sa_family: Socket Family that VXLAN is notifying us about
7877 * @port: UDP port number that VXLAN stopped listening to
7878 **/
7879static void i40e_del_vxlan_port(struct net_device *netdev,
7880 sa_family_t sa_family, __be16 port)
7881{
7882 struct i40e_netdev_priv *np = netdev_priv(netdev);
7883 struct i40e_vsi *vsi = np->vsi;
7884 struct i40e_pf *pf = vsi->back;
7885 u8 idx;
7886
7887 if (sa_family == AF_INET6)
7888 return;
7889
7890 idx = i40e_get_vxlan_port_idx(pf, port);
7891
7892 /* Check if port already exists */
7893 if (idx < I40E_MAX_PF_UDP_OFFLOAD_PORTS) {
7894 /* if port exists, set it to 0 (mark for deletion)
7895 * and make it pending
7896 */
7897 pf->vxlan_ports[idx] = 0;
a1c9a9d9 7898 pf->pending_vxlan_bitmap |= (1 << idx);
a1c9a9d9 7899 pf->flags |= I40E_FLAG_VXLAN_FILTER_SYNC;
c22c06c8
SN		 7900
7901 dev_info(&pf->pdev->dev, "deleting vxlan port %d\n",
7902 ntohs(port));
a1c9a9d9 7903 } else {
c22c06c8 7904 netdev_warn(netdev, "vxlan port %d was not found, not deleting\n",
a1c9a9d9
JK		 7905 ntohs(port));
7906 }
7907}
7908
7909#endif
1f224ad2 7910static int i40e_get_phys_port_id(struct net_device *netdev,
02637fce 7911 struct netdev_phys_item_id *ppid)
1f224ad2
NP		 7912{
7913 struct i40e_netdev_priv *np = netdev_priv(netdev);
7914 struct i40e_pf *pf = np->vsi->back;
7915 struct i40e_hw *hw = &pf->hw;
7916
7917 if (!(pf->flags & I40E_FLAG_PORT_ID_VALID))
7918 return -EOPNOTSUPP;
7919
7920 ppid->id_len = min_t(int, sizeof(hw->mac.port_addr), sizeof(ppid->id));
7921 memcpy(ppid->id, hw->mac.port_addr, ppid->id_len);
7922
7923 return 0;
7924}
7925
2f90ade6
JB		 7926/**
7927 * i40e_ndo_fdb_add - add an entry to the hardware database
7928 * @ndm: the input from the stack
7929 * @tb: pointer to array of nladdr (unused)
7930 * @dev: the net device pointer
7931 * @addr: the MAC address entry being added
7932 * @flags: instructions from stack about fdb operation
7933 */
4ba0dea5
GR		 7934static int i40e_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
7935 struct net_device *dev,
f6f6424b 7936 const unsigned char *addr, u16 vid,
4ba0dea5 7937 u16 flags)
4ba0dea5
GR		 7938{
7939 struct i40e_netdev_priv *np = netdev_priv(dev);
7940 struct i40e_pf *pf = np->vsi->back;
7941 int err = 0;
7942
7943 if (!(pf->flags & I40E_FLAG_SRIOV_ENABLED))
7944 return -EOPNOTSUPP;
7945
65891fea
OG		 7946 if (vid) {
7947 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev->name);
7948 return -EINVAL;
7949 }
7950
4ba0dea5
GR		 7951 /* Hardware does not support aging addresses so if a
7952 * ndm_state is given only allow permanent addresses
7953 */
7954 if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) {
7955 netdev_info(dev, "FDB only supports static addresses\n");
7956 return -EINVAL;
7957 }
7958
7959 if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr))
7960 err = dev_uc_add_excl(dev, addr);
7961 else if (is_multicast_ether_addr(addr))
7962 err = dev_mc_add_excl(dev, addr);
7963 else
7964 err = -EINVAL;
7965
7966 /* Only return duplicate errors if NLM_F_EXCL is set */
7967 if (err == -EEXIST && !(flags & NLM_F_EXCL))
7968 err = 0;
7969
7970 return err;
7971}
7972
51616018
NP		 7973#ifdef HAVE_BRIDGE_ATTRIBS
7974/**
7975 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
7976 * @dev: the netdev being configured
7977 * @nlh: RTNL message
7978 *
7979 * Inserts a new hardware bridge if not already created and
7980 * enables the bridging mode requested (VEB or VEPA). If the
7981 * hardware bridge has already been inserted and the request
7982 * is to change the mode then that requires a PF reset to
7983 * allow rebuild of the components with required hardware
7984 * bridge mode enabled.
7985 **/
7986static int i40e_ndo_bridge_setlink(struct net_device *dev,
7987 struct nlmsghdr *nlh)
7988{
7989 struct i40e_netdev_priv *np = netdev_priv(dev);
7990 struct i40e_vsi *vsi = np->vsi;
7991 struct i40e_pf *pf = vsi->back;
7992 struct i40e_veb *veb = NULL;
7993 struct nlattr *attr, *br_spec;
7994 int i, rem;
7995
7996 /* Only for PF VSI for now */
7997 if (vsi->seid != pf->vsi[pf->lan_vsi]->seid)
7998 return -EOPNOTSUPP;
7999
8000 /* Find the HW bridge for PF VSI */
8001 for (i = 0; i < I40E_MAX_VEB && !veb; i++) {
8002 if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid)
8003 veb = pf->veb[i];
8004 }
8005
8006 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
8007
8008 nla_for_each_nested(attr, br_spec, rem) {
8009 __u16 mode;
8010
8011 if (nla_type(attr) != IFLA_BRIDGE_MODE)
8012 continue;
8013
8014 mode = nla_get_u16(attr);
8015 if ((mode != BRIDGE_MODE_VEPA) &&
8016 (mode != BRIDGE_MODE_VEB))
8017 return -EINVAL;
8018
8019 /* Insert a new HW bridge */
8020 if (!veb) {
8021 veb = i40e_veb_setup(pf, 0, vsi->uplink_seid, vsi->seid,
8022 vsi->tc_config.enabled_tc);
8023 if (veb) {
8024 veb->bridge_mode = mode;
8025 i40e_config_bridge_mode(veb);
8026 } else {
8027 /* No Bridge HW offload available */
8028 return -ENOENT;
8029 }
8030 break;
8031 } else if (mode != veb->bridge_mode) {
8032 /* Existing HW bridge but different mode needs reset */
8033 veb->bridge_mode = mode;
8034 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
8035 break;
8036 }
8037 }
8038
8039 return 0;
8040}
8041
8042/**
8043 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8044 * @skb: skb buff
8045 * @pid: process id
8046 * @seq: RTNL message seq #
8047 * @dev: the netdev being configured
8048 * @filter_mask: unused
8049 *
8050 * Return the mode in which the hardware bridge is operating in
8051 * i.e VEB or VEPA.
8052 **/
8053#ifdef HAVE_BRIDGE_FILTER
8054static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
8055 struct net_device *dev,
46c264da 8056 u32 __always_unused filter_mask, int nlflags)
51616018
NP		 8057#else
8058static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
46c264da 8059 struct net_device *dev, int nlflags)
51616018
NP		 8060#endif /* HAVE_BRIDGE_FILTER */
8061{
8062 struct i40e_netdev_priv *np = netdev_priv(dev);
8063 struct i40e_vsi *vsi = np->vsi;
8064 struct i40e_pf *pf = vsi->back;
8065 struct i40e_veb *veb = NULL;
8066 int i;
8067
8068 /* Only for PF VSI for now */
8069 if (vsi->seid != pf->vsi[pf->lan_vsi]->seid)
8070 return -EOPNOTSUPP;
8071
8072 /* Find the HW bridge for the PF VSI */
8073 for (i = 0; i < I40E_MAX_VEB && !veb; i++) {
8074 if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid)
8075 veb = pf->veb[i];
8076 }
8077
8078 if (!veb)
8079 return 0;
8080
46c264da
ND		 8081 return ndo_dflt_bridge_getlink(skb, pid, seq, dev, veb->bridge_mode,
8082 nlflags);
51616018
NP		 8083}
8084#endif /* HAVE_BRIDGE_ATTRIBS */
8085
37a2973a 8086static const struct net_device_ops i40e_netdev_ops = {
41c445ff
JB		 8087 .ndo_open = i40e_open,
8088 .ndo_stop = i40e_close,
8089 .ndo_start_xmit = i40e_lan_xmit_frame,
8090 .ndo_get_stats64 = i40e_get_netdev_stats_struct,
8091 .ndo_set_rx_mode = i40e_set_rx_mode,
8092 .ndo_validate_addr = eth_validate_addr,
8093 .ndo_set_mac_address = i40e_set_mac,
8094 .ndo_change_mtu = i40e_change_mtu,
beb0dff1 8095 .ndo_do_ioctl = i40e_ioctl,
41c445ff
JB		 8096 .ndo_tx_timeout = i40e_tx_timeout,
8097 .ndo_vlan_rx_add_vid = i40e_vlan_rx_add_vid,
8098 .ndo_vlan_rx_kill_vid = i40e_vlan_rx_kill_vid,
8099#ifdef CONFIG_NET_POLL_CONTROLLER
8100 .ndo_poll_controller = i40e_netpoll,
8101#endif
8102 .ndo_setup_tc = i40e_setup_tc,
38e00438
VD		 8103#ifdef I40E_FCOE
8104 .ndo_fcoe_enable = i40e_fcoe_enable,
8105 .ndo_fcoe_disable = i40e_fcoe_disable,
8106#endif
41c445ff
JB		 8107 .ndo_set_features = i40e_set_features,
8108 .ndo_set_vf_mac = i40e_ndo_set_vf_mac,
8109 .ndo_set_vf_vlan = i40e_ndo_set_vf_port_vlan,
ed616689 8110 .ndo_set_vf_rate = i40e_ndo_set_vf_bw,
41c445ff 8111 .ndo_get_vf_config = i40e_ndo_get_vf_config,
588aefa0 8112 .ndo_set_vf_link_state = i40e_ndo_set_vf_link_state,
e6d9004d 8113 .ndo_set_vf_spoofchk = i40e_ndo_set_vf_spoofchk,
a1c9a9d9
JK		 8114#ifdef CONFIG_I40E_VXLAN
8115 .ndo_add_vxlan_port = i40e_add_vxlan_port,
8116 .ndo_del_vxlan_port = i40e_del_vxlan_port,
8117#endif
1f224ad2 8118 .ndo_get_phys_port_id = i40e_get_phys_port_id,
4ba0dea5 8119 .ndo_fdb_add = i40e_ndo_fdb_add,
51616018
NP		 8120#ifdef HAVE_BRIDGE_ATTRIBS
8121 .ndo_bridge_getlink = i40e_ndo_bridge_getlink,
8122 .ndo_bridge_setlink = i40e_ndo_bridge_setlink,
8123#endif /* HAVE_BRIDGE_ATTRIBS */
41c445ff
JB		 8124};
8125
8126/**
8127 * i40e_config_netdev - Setup the netdev flags
8128 * @vsi: the VSI being configured
8129 *
8130 * Returns 0 on success, negative value on failure
8131 **/
8132static int i40e_config_netdev(struct i40e_vsi *vsi)
8133{
1a10370a 8134 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
41c445ff
JB		 8135 struct i40e_pf *pf = vsi->back;
8136 struct i40e_hw *hw = &pf->hw;
8137 struct i40e_netdev_priv *np;
8138 struct net_device *netdev;
8139 u8 mac_addr[ETH_ALEN];
8140 int etherdev_size;
8141
8142 etherdev_size = sizeof(struct i40e_netdev_priv);
f8ff1464 8143 netdev = alloc_etherdev_mq(etherdev_size, vsi->alloc_queue_pairs);
41c445ff
JB		 8144 if (!netdev)
8145 return -ENOMEM;
8146
8147 vsi->netdev = netdev;
8148 np = netdev_priv(netdev);
8149 np->vsi = vsi;
8150
d70e941b 8151 netdev->hw_enc_features |= NETIF_F_IP_CSUM |
41c445ff 8152 NETIF_F_GSO_UDP_TUNNEL |
d70e941b 8153 NETIF_F_TSO;
41c445ff
JB		 8154
8155 netdev->features = NETIF_F_SG |
8156 NETIF_F_IP_CSUM |
8157 NETIF_F_SCTP_CSUM |
8158 NETIF_F_HIGHDMA |
8159 NETIF_F_GSO_UDP_TUNNEL |
8160 NETIF_F_HW_VLAN_CTAG_TX |
8161 NETIF_F_HW_VLAN_CTAG_RX |
8162 NETIF_F_HW_VLAN_CTAG_FILTER |
8163 NETIF_F_IPV6_CSUM |
8164 NETIF_F_TSO |
059dab69 8165 NETIF_F_TSO_ECN |
41c445ff
JB		 8166 NETIF_F_TSO6 |
8167 NETIF_F_RXCSUM |
8168 NETIF_F_RXHASH |
8169 0;
8170
2e86a0b6
ASJ		 8171 if (!(pf->flags & I40E_FLAG_MFP_ENABLED))
8172 netdev->features |= NETIF_F_NTUPLE;
8173
41c445ff
JB		 8174 /* copy netdev features into list of user selectable features */
8175 netdev->hw_features |= netdev->features;
8176
8177 if (vsi->type == I40E_VSI_MAIN) {
8178 SET_NETDEV_DEV(netdev, &pf->pdev->dev);
9a173901 8179 ether_addr_copy(mac_addr, hw->mac.perm_addr);
30650cc5
SN		 8180 /* The following steps are necessary to prevent reception
8181 * of tagged packets - some older NVM configurations load a
8182 * default a MAC-VLAN filter that accepts any tagged packet
8183 * which must be replaced by a normal filter.
8c27d42e 8184 */
30650cc5
SN		 8185 if (!i40e_rm_default_mac_filter(vsi, mac_addr))
8186 i40e_add_filter(vsi, mac_addr,
8187 I40E_VLAN_ANY, false, true);
41c445ff
JB		 8188 } else {
8189 /* relate the VSI_VMDQ name to the VSI_MAIN name */
8190 snprintf(netdev->name, IFNAMSIZ, "%sv%%d",
8191 pf->vsi[pf->lan_vsi]->netdev->name);
8192 random_ether_addr(mac_addr);
8193 i40e_add_filter(vsi, mac_addr, I40E_VLAN_ANY, false, false);
8194 }
1a10370a 8195 i40e_add_filter(vsi, brdcast, I40E_VLAN_ANY, false, false);
41c445ff 8196
9a173901
GR		 8197 ether_addr_copy(netdev->dev_addr, mac_addr);
8198 ether_addr_copy(netdev->perm_addr, mac_addr);
41c445ff
JB		 8199 /* vlan gets same features (except vlan offload)
8200 * after any tweaks for specific VSI types
8201 */
8202 netdev->vlan_features = netdev->features & ~(NETIF_F_HW_VLAN_CTAG_TX |
8203 NETIF_F_HW_VLAN_CTAG_RX |
8204 NETIF_F_HW_VLAN_CTAG_FILTER);
8205 netdev->priv_flags |= IFF_UNICAST_FLT;
8206 netdev->priv_flags |= IFF_SUPP_NOFCS;
8207 /* Setup netdev TC information */
8208 i40e_vsi_config_netdev_tc(vsi, vsi->tc_config.enabled_tc);
8209
8210 netdev->netdev_ops = &i40e_netdev_ops;
8211 netdev->watchdog_timeo = 5 * HZ;
8212 i40e_set_ethtool_ops(netdev);
38e00438
VD		 8213#ifdef I40E_FCOE
8214 i40e_fcoe_config_netdev(netdev, vsi);
8215#endif
41c445ff
JB		 8216
8217 return 0;
8218}
8219
8220/**
8221 * i40e_vsi_delete - Delete a VSI from the switch
8222 * @vsi: the VSI being removed
8223 *
8224 * Returns 0 on success, negative value on failure
8225 **/
8226static void i40e_vsi_delete(struct i40e_vsi *vsi)
8227{
8228 /* remove default VSI is not allowed */
8229 if (vsi == vsi->back->vsi[vsi->back->lan_vsi])
8230 return;
8231
41c445ff 8232 i40e_aq_delete_element(&vsi->back->hw, vsi->seid, NULL);
41c445ff
JB		 8233}
8234
51616018
NP		 8235/**
8236 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
8237 * @vsi: the VSI being queried
8238 *
8239 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
8240 **/
8241int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi)
8242{
8243 struct i40e_veb *veb;
8244 struct i40e_pf *pf = vsi->back;
8245
8246 /* Uplink is not a bridge so default to VEB */
8247 if (vsi->veb_idx == I40E_NO_VEB)
8248 return 1;
8249
8250 veb = pf->veb[vsi->veb_idx];
8251 /* Uplink is a bridge in VEPA mode */
8252 if (veb && (veb->bridge_mode & BRIDGE_MODE_VEPA))
8253 return 0;
8254
8255 /* Uplink is a bridge in VEB mode */
8256 return 1;
8257}
8258
41c445ff
JB		 8259/**
8260 * i40e_add_vsi - Add a VSI to the switch
8261 * @vsi: the VSI being configured
8262 *
8263 * This initializes a VSI context depending on the VSI type to be added and
8264 * passes it down to the add_vsi aq command.
8265 **/
8266static int i40e_add_vsi(struct i40e_vsi *vsi)
8267{
8268 int ret = -ENODEV;
8269 struct i40e_mac_filter *f, *ftmp;
8270 struct i40e_pf *pf = vsi->back;
8271 struct i40e_hw *hw = &pf->hw;
8272 struct i40e_vsi_context ctxt;
8273 u8 enabled_tc = 0x1; /* TC0 enabled */
8274 int f_count = 0;
8275
8276 memset(&ctxt, 0, sizeof(ctxt));
8277 switch (vsi->type) {
8278 case I40E_VSI_MAIN:
8279 /* The PF's main VSI is already setup as part of the
8280 * device initialization, so we'll not bother with
8281 * the add_vsi call, but we will retrieve the current
8282 * VSI context.
8283 */
8284 ctxt.seid = pf->main_vsi_seid;
8285 ctxt.pf_num = pf->hw.pf_id;
8286 ctxt.vf_num = 0;
8287 ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
8288 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
8289 if (ret) {
8290 dev_info(&pf->pdev->dev,
b40c82e6 8291 "couldn't get PF vsi config, err %d, aq_err %d\n",
41c445ff
JB		 8292 ret, pf->hw.aq.asq_last_status);
8293 return -ENOENT;
8294 }
1a2f6248 8295 vsi->info = ctxt.info;
41c445ff
JB		 8296 vsi->info.valid_sections = 0;
8297
8298 vsi->seid = ctxt.seid;
8299 vsi->id = ctxt.vsi_number;
8300
8301 enabled_tc = i40e_pf_get_tc_map(pf);
8302
8303 /* MFP mode setup queue map and update VSI */
63d7e5a4
NP		 8304 if ((pf->flags & I40E_FLAG_MFP_ENABLED) &&
8305 !(pf->hw.func_caps.iscsi)) { /* NIC type PF */
41c445ff
JB		 8306 memset(&ctxt, 0, sizeof(ctxt));
8307 ctxt.seid = pf->main_vsi_seid;
8308 ctxt.pf_num = pf->hw.pf_id;
8309 ctxt.vf_num = 0;
8310 i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, false);
8311 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
8312 if (ret) {
8313 dev_info(&pf->pdev->dev,
8314 "update vsi failed, aq_err=%d\n",
8315 pf->hw.aq.asq_last_status);
8316 ret = -ENOENT;
8317 goto err;
8318 }
8319 /* update the local VSI info queue map */
8320 i40e_vsi_update_queue_map(vsi, &ctxt);
8321 vsi->info.valid_sections = 0;
8322 } else {
8323 /* Default/Main VSI is only enabled for TC0
8324 * reconfigure it to enable all TCs that are
8325 * available on the port in SFP mode.
63d7e5a4
NP		 8326 * For MFP case the iSCSI PF would use this
8327 * flow to enable LAN+iSCSI TC.
41c445ff
JB		 8328 */
8329 ret = i40e_vsi_config_tc(vsi, enabled_tc);
8330 if (ret) {
8331 dev_info(&pf->pdev->dev,
8332 "failed to configure TCs for main VSI tc_map 0x%08x, err %d, aq_err %d\n",
8333 enabled_tc, ret,
8334 pf->hw.aq.asq_last_status);
8335 ret = -ENOENT;
8336 }
8337 }
8338 break;
8339
8340 case I40E_VSI_FDIR:
cbf61325
ASJ		 8341 ctxt.pf_num = hw->pf_id;
8342 ctxt.vf_num = 0;
8343 ctxt.uplink_seid = vsi->uplink_seid;
2b18e591 8344 ctxt.connection_type = I40E_AQ_VSI_CONN_TYPE_NORMAL;
cbf61325 8345 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
51616018
NP		 8346 if (i40e_is_vsi_uplink_mode_veb(vsi)) {
8347 ctxt.info.valid_sections |=
79c21a82 8348 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
51616018 8349 ctxt.info.switch_id =
79c21a82 8350 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
51616018 8351 }
41c445ff 8352 i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, true);
41c445ff
JB		 8353 break;
8354
8355 case I40E_VSI_VMDQ2:
8356 ctxt.pf_num = hw->pf_id;
8357 ctxt.vf_num = 0;
8358 ctxt.uplink_seid = vsi->uplink_seid;
2b18e591 8359 ctxt.connection_type = I40E_AQ_VSI_CONN_TYPE_NORMAL;
41c445ff
JB		 8360 ctxt.flags = I40E_AQ_VSI_TYPE_VMDQ2;
8361
41c445ff
JB		 8362 /* This VSI is connected to VEB so the switch_id
8363 * should be set to zero by default.
8364 */
51616018
NP		 8365 if (i40e_is_vsi_uplink_mode_veb(vsi)) {
8366 ctxt.info.valid_sections |=
8367 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
8368 ctxt.info.switch_id =
8369 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
8370 }
41c445ff
JB		 8371
8372 /* Setup the VSI tx/rx queue map for TC0 only for now */
8373 i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, true);
8374 break;
8375
8376 case I40E_VSI_SRIOV:
8377 ctxt.pf_num = hw->pf_id;
8378 ctxt.vf_num = vsi->vf_id + hw->func_caps.vf_base_id;
8379 ctxt.uplink_seid = vsi->uplink_seid;
2b18e591 8380 ctxt.connection_type = I40E_AQ_VSI_CONN_TYPE_NORMAL;
41c445ff
JB		 8381 ctxt.flags = I40E_AQ_VSI_TYPE_VF;
8382
41c445ff
JB		 8383 /* This VSI is connected to VEB so the switch_id
8384 * should be set to zero by default.
8385 */
51616018
NP		 8386 if (i40e_is_vsi_uplink_mode_veb(vsi)) {
8387 ctxt.info.valid_sections |=
8388 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
8389 ctxt.info.switch_id =
8390 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
8391 }
41c445ff
JB		 8392
8393 ctxt.info.valid_sections |= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID);
8394 ctxt.info.port_vlan_flags |= I40E_AQ_VSI_PVLAN_MODE_ALL;
c674d125
MW		 8395 if (pf->vf[vsi->vf_id].spoofchk) {
8396 ctxt.info.valid_sections |=
8397 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
8398 ctxt.info.sec_flags |=
8399 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
8400 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
8401 }
41c445ff
JB		 8402 /* Setup the VSI tx/rx queue map for TC0 only for now */
8403 i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, true);
8404 break;
8405
38e00438
VD		 8406#ifdef I40E_FCOE
8407 case I40E_VSI_FCOE:
8408 ret = i40e_fcoe_vsi_init(vsi, &ctxt);
8409 if (ret) {
8410 dev_info(&pf->pdev->dev, "failed to initialize FCoE VSI\n");
8411 return ret;
8412 }
8413 break;
8414
8415#endif /* I40E_FCOE */
41c445ff
JB		 8416 default:
8417 return -ENODEV;
8418 }
8419
8420 if (vsi->type != I40E_VSI_MAIN) {
8421 ret = i40e_aq_add_vsi(hw, &ctxt, NULL);
8422 if (ret) {
8423 dev_info(&vsi->back->pdev->dev,
8424 "add vsi failed, aq_err=%d\n",
8425 vsi->back->hw.aq.asq_last_status);
8426 ret = -ENOENT;
8427 goto err;
8428 }
1a2f6248 8429 vsi->info = ctxt.info;
41c445ff
JB		 8430 vsi->info.valid_sections = 0;
8431 vsi->seid = ctxt.seid;
8432 vsi->id = ctxt.vsi_number;
8433 }
8434
8435 /* If macvlan filters already exist, force them to get loaded */
8436 list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) {
8437 f->changed = true;
8438 f_count++;
6252c7e4
SN		 8439
8440 if (f->is_laa && vsi->type == I40E_VSI_MAIN) {
30650cc5
SN		 8441 struct i40e_aqc_remove_macvlan_element_data element;
8442
8443 memset(&element, 0, sizeof(element));
8444 ether_addr_copy(element.mac_addr, f->macaddr);
8445 element.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH;
8446 ret = i40e_aq_remove_macvlan(hw, vsi->seid,
8447 &element, 1, NULL);
8448 if (ret) {
8449 /* some older FW has a different default */
8450 element.flags |=
8451 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN;
8452 i40e_aq_remove_macvlan(hw, vsi->seid,
8453 &element, 1, NULL);
8454 }
8455
8456 i40e_aq_mac_address_write(hw,
6252c7e4
SN		 8457 I40E_AQC_WRITE_TYPE_LAA_WOL,
8458 f->macaddr, NULL);
8459 }
41c445ff
JB		 8460 }
8461 if (f_count) {
8462 vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED;
8463 pf->flags |= I40E_FLAG_FILTER_SYNC;
8464 }
8465
8466 /* Update VSI BW information */
8467 ret = i40e_vsi_get_bw_info(vsi);
8468 if (ret) {
8469 dev_info(&pf->pdev->dev,
8470 "couldn't get vsi bw info, err %d, aq_err %d\n",
8471 ret, pf->hw.aq.asq_last_status);
8472 /* VSI is already added so not tearing that up */
8473 ret = 0;
8474 }
8475
8476err:
8477 return ret;
8478}
8479
8480/**
8481 * i40e_vsi_release - Delete a VSI and free its resources
8482 * @vsi: the VSI being removed
8483 *
8484 * Returns 0 on success or < 0 on error
8485 **/
8486int i40e_vsi_release(struct i40e_vsi *vsi)
8487{
8488 struct i40e_mac_filter *f, *ftmp;
8489 struct i40e_veb *veb = NULL;
8490 struct i40e_pf *pf;
8491 u16 uplink_seid;
8492 int i, n;
8493
8494 pf = vsi->back;
8495
8496 /* release of a VEB-owner or last VSI is not allowed */
8497 if (vsi->flags & I40E_VSI_FLAG_VEB_OWNER) {
8498 dev_info(&pf->pdev->dev, "VSI %d has existing VEB %d\n",
8499 vsi->seid, vsi->uplink_seid);
8500 return -ENODEV;
8501 }
8502 if (vsi == pf->vsi[pf->lan_vsi] &&
8503 !test_bit(__I40E_DOWN, &pf->state)) {
8504 dev_info(&pf->pdev->dev, "Can't remove PF VSI\n");
8505 return -ENODEV;
8506 }
8507
8508 uplink_seid = vsi->uplink_seid;
8509 if (vsi->type != I40E_VSI_SRIOV) {
8510 if (vsi->netdev_registered) {
8511 vsi->netdev_registered = false;
8512 if (vsi->netdev) {
8513 /* results in a call to i40e_close() */
8514 unregister_netdev(vsi->netdev);
41c445ff
JB		 8515 }
8516 } else {
90ef8d47 8517 i40e_vsi_close(vsi);
41c445ff
JB		 8518 }
8519 i40e_vsi_disable_irq(vsi);
8520 }
8521
8522 list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list)
8523 i40e_del_filter(vsi, f->macaddr, f->vlan,
8524 f->is_vf, f->is_netdev);
8525 i40e_sync_vsi_filters(vsi);
8526
8527 i40e_vsi_delete(vsi);
8528 i40e_vsi_free_q_vectors(vsi);
a4866597
SN		 8529 if (vsi->netdev) {
8530 free_netdev(vsi->netdev);
8531 vsi->netdev = NULL;
8532 }
41c445ff
JB		 8533 i40e_vsi_clear_rings(vsi);
8534 i40e_vsi_clear(vsi);
8535
8536 /* If this was the last thing on the VEB, except for the
8537 * controlling VSI, remove the VEB, which puts the controlling
8538 * VSI onto the next level down in the switch.
8539 *
8540 * Well, okay, there's one more exception here: don't remove
8541 * the orphan VEBs yet. We'll wait for an explicit remove request
8542 * from up the network stack.
8543 */
505682cd 8544 for (n = 0, i = 0; i < pf->num_alloc_vsi; i++) {
41c445ff
JB		 8545 if (pf->vsi[i] &&
8546 pf->vsi[i]->uplink_seid == uplink_seid &&
8547 (pf->vsi[i]->flags & I40E_VSI_FLAG_VEB_OWNER) == 0) {
8548 n++; /* count the VSIs */
8549 }
8550 }
8551 for (i = 0; i < I40E_MAX_VEB; i++) {
8552 if (!pf->veb[i])
8553 continue;
8554 if (pf->veb[i]->uplink_seid == uplink_seid)
8555 n++; /* count the VEBs */
8556 if (pf->veb[i]->seid == uplink_seid)
8557 veb = pf->veb[i];
8558 }
8559 if (n == 0 && veb && veb->uplink_seid != 0)
8560 i40e_veb_release(veb);
8561
8562 return 0;
8563}
8564
8565/**
8566 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
8567 * @vsi: ptr to the VSI
8568 *
8569 * This should only be called after i40e_vsi_mem_alloc() which allocates the
8570 * corresponding SW VSI structure and initializes num_queue_pairs for the
8571 * newly allocated VSI.
8572 *
8573 * Returns 0 on success or negative on failure
8574 **/
8575static int i40e_vsi_setup_vectors(struct i40e_vsi *vsi)
8576{
8577 int ret = -ENOENT;
8578 struct i40e_pf *pf = vsi->back;
8579
493fb300 8580 if (vsi->q_vectors[0]) {
41c445ff
JB		 8581 dev_info(&pf->pdev->dev, "VSI %d has existing q_vectors\n",
8582 vsi->seid);
8583 return -EEXIST;
8584 }
8585
8586 if (vsi->base_vector) {
f29eaa3d 8587 dev_info(&pf->pdev->dev, "VSI %d has non-zero base vector %d\n",
41c445ff
JB		 8588 vsi->seid, vsi->base_vector);
8589 return -EEXIST;
8590 }
8591
90e04070 8592 ret = i40e_vsi_alloc_q_vectors(vsi);
41c445ff
JB		 8593 if (ret) {
8594 dev_info(&pf->pdev->dev,
8595 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
8596 vsi->num_q_vectors, vsi->seid, ret);
8597 vsi->num_q_vectors = 0;
8598 goto vector_setup_out;
8599 }
8600
958a3e3b
SN		 8601 if (vsi->num_q_vectors)
8602 vsi->base_vector = i40e_get_lump(pf, pf->irq_pile,
8603 vsi->num_q_vectors, vsi->idx);
41c445ff
JB		 8604 if (vsi->base_vector < 0) {
8605 dev_info(&pf->pdev->dev,
049a2be8
SN		 8606 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
8607 vsi->num_q_vectors, vsi->seid, vsi->base_vector);
41c445ff
JB		 8608 i40e_vsi_free_q_vectors(vsi);
8609 ret = -ENOENT;
8610 goto vector_setup_out;
8611 }
8612
8613vector_setup_out:
8614 return ret;
8615}
8616
bc7d338f
ASJ		 8617/**
8618 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
8619 * @vsi: pointer to the vsi.
8620 *
8621 * This re-allocates a vsi's queue resources.
8622 *
8623 * Returns pointer to the successfully allocated and configured VSI sw struct
8624 * on success, otherwise returns NULL on failure.
8625 **/
8626static struct i40e_vsi *i40e_vsi_reinit_setup(struct i40e_vsi *vsi)
8627{
8628 struct i40e_pf *pf = vsi->back;
8629 u8 enabled_tc;
8630 int ret;
8631
8632 i40e_put_lump(pf->qp_pile, vsi->base_queue, vsi->idx);
8633 i40e_vsi_clear_rings(vsi);
8634
8635 i40e_vsi_free_arrays(vsi, false);
8636 i40e_set_num_rings_in_vsi(vsi);
8637 ret = i40e_vsi_alloc_arrays(vsi, false);
8638 if (ret)
8639 goto err_vsi;
8640
8641 ret = i40e_get_lump(pf, pf->qp_pile, vsi->alloc_queue_pairs, vsi->idx);
8642 if (ret < 0) {
049a2be8
SN		 8643 dev_info(&pf->pdev->dev,
8644 "failed to get tracking for %d queues for VSI %d err=%d\n",
8645 vsi->alloc_queue_pairs, vsi->seid, ret);
bc7d338f
ASJ		 8646 goto err_vsi;
8647 }
8648 vsi->base_queue = ret;
8649
8650 /* Update the FW view of the VSI. Force a reset of TC and queue
8651 * layout configurations.
8652 */
8653 enabled_tc = pf->vsi[pf->lan_vsi]->tc_config.enabled_tc;
8654 pf->vsi[pf->lan_vsi]->tc_config.enabled_tc = 0;
8655 pf->vsi[pf->lan_vsi]->seid = pf->main_vsi_seid;
8656 i40e_vsi_config_tc(pf->vsi[pf->lan_vsi], enabled_tc);
8657
8658 /* assign it some queues */
8659 ret = i40e_alloc_rings(vsi);
8660 if (ret)
8661 goto err_rings;
8662
8663 /* map all of the rings to the q_vectors */
8664 i40e_vsi_map_rings_to_vectors(vsi);
8665 return vsi;
8666
8667err_rings:
8668 i40e_vsi_free_q_vectors(vsi);
8669 if (vsi->netdev_registered) {
8670 vsi->netdev_registered = false;
8671 unregister_netdev(vsi->netdev);
8672 free_netdev(vsi->netdev);
8673 vsi->netdev = NULL;
8674 }
8675 i40e_aq_delete_element(&pf->hw, vsi->seid, NULL);
8676err_vsi:
8677 i40e_vsi_clear(vsi);
8678 return NULL;
8679}
8680
41c445ff
JB		 8681/**
8682 * i40e_vsi_setup - Set up a VSI by a given type
8683 * @pf: board private structure
8684 * @type: VSI type
8685 * @uplink_seid: the switch element to link to
8686 * @param1: usage depends upon VSI type. For VF types, indicates VF id
8687 *
8688 * This allocates the sw VSI structure and its queue resources, then add a VSI
8689 * to the identified VEB.
8690 *
8691 * Returns pointer to the successfully allocated and configure VSI sw struct on
8692 * success, otherwise returns NULL on failure.
8693 **/
8694struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
8695 u16 uplink_seid, u32 param1)
8696{
8697 struct i40e_vsi *vsi = NULL;
8698 struct i40e_veb *veb = NULL;
8699 int ret, i;
8700 int v_idx;
8701
8702 /* The requested uplink_seid must be either
8703 * - the PF's port seid
8704 * no VEB is needed because this is the PF
8705 * or this is a Flow Director special case VSI
8706 * - seid of an existing VEB
8707 * - seid of a VSI that owns an existing VEB
8708 * - seid of a VSI that doesn't own a VEB
8709 * a new VEB is created and the VSI becomes the owner
8710 * - seid of the PF VSI, which is what creates the first VEB
8711 * this is a special case of the previous
8712 *
8713 * Find which uplink_seid we were given and create a new VEB if needed
8714 */
8715 for (i = 0; i < I40E_MAX_VEB; i++) {
8716 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid) {
8717 veb = pf->veb[i];
8718 break;
8719 }
8720 }
8721
8722 if (!veb && uplink_seid != pf->mac_seid) {
8723
505682cd 8724 for (i = 0; i < pf->num_alloc_vsi; i++) {
41c445ff
JB		 8725 if (pf->vsi[i] && pf->vsi[i]->seid == uplink_seid) {
8726 vsi = pf->vsi[i];
8727 break;
8728 }
8729 }
8730 if (!vsi) {
8731 dev_info(&pf->pdev->dev, "no such uplink_seid %d\n",
8732 uplink_seid);
8733 return NULL;
8734 }
8735
8736 if (vsi->uplink_seid == pf->mac_seid)
8737 veb = i40e_veb_setup(pf, 0, pf->mac_seid, vsi->seid,
8738 vsi->tc_config.enabled_tc);
8739 else if ((vsi->flags & I40E_VSI_FLAG_VEB_OWNER) == 0)
8740 veb = i40e_veb_setup(pf, 0, vsi->uplink_seid, vsi->seid,
8741 vsi->tc_config.enabled_tc);
79c21a82
ASJ		 8742 if (veb) {
8743 if (vsi->seid != pf->vsi[pf->lan_vsi]->seid) {
8744 dev_info(&vsi->back->pdev->dev,
8745 "%s: New VSI creation error, uplink seid of LAN VSI expected.\n",
8746 __func__);
8747 return NULL;
8748 }
51616018 8749 i40e_config_bridge_mode(veb);
79c21a82 8750 }
41c445ff
JB		 8751 for (i = 0; i < I40E_MAX_VEB && !veb; i++) {
8752 if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid)
8753 veb = pf->veb[i];
8754 }
8755 if (!veb) {
8756 dev_info(&pf->pdev->dev, "couldn't add VEB\n");
8757 return NULL;
8758 }
8759
8760 vsi->flags |= I40E_VSI_FLAG_VEB_OWNER;
8761 uplink_seid = veb->seid;
8762 }
8763
8764 /* get vsi sw struct */
8765 v_idx = i40e_vsi_mem_alloc(pf, type);
8766 if (v_idx < 0)
8767 goto err_alloc;
8768 vsi = pf->vsi[v_idx];
cbf61325
ASJ		 8769 if (!vsi)
8770 goto err_alloc;
41c445ff
JB		 8771 vsi->type = type;
8772 vsi->veb_idx = (veb ? veb->idx : I40E_NO_VEB);
8773
8774 if (type == I40E_VSI_MAIN)
8775 pf->lan_vsi = v_idx;
8776 else if (type == I40E_VSI_SRIOV)
8777 vsi->vf_id = param1;
8778 /* assign it some queues */
cbf61325
ASJ		 8779 ret = i40e_get_lump(pf, pf->qp_pile, vsi->alloc_queue_pairs,
8780 vsi->idx);
41c445ff 8781 if (ret < 0) {
049a2be8
SN		 8782 dev_info(&pf->pdev->dev,
8783 "failed to get tracking for %d queues for VSI %d err=%d\n",
8784 vsi->alloc_queue_pairs, vsi->seid, ret);
41c445ff
JB		 8785 goto err_vsi;
8786 }
8787 vsi->base_queue = ret;
8788
8789 /* get a VSI from the hardware */
8790 vsi->uplink_seid = uplink_seid;
8791 ret = i40e_add_vsi(vsi);
8792 if (ret)
8793 goto err_vsi;
8794
8795 switch (vsi->type) {
8796 /* setup the netdev if needed */
8797 case I40E_VSI_MAIN:
8798 case I40E_VSI_VMDQ2:
38e00438 8799 case I40E_VSI_FCOE:
41c445ff
JB		 8800 ret = i40e_config_netdev(vsi);
8801 if (ret)
8802 goto err_netdev;
8803 ret = register_netdev(vsi->netdev);
8804 if (ret)
8805 goto err_netdev;
8806 vsi->netdev_registered = true;
8807 netif_carrier_off(vsi->netdev);
4e3b35b0
NP		 8808#ifdef CONFIG_I40E_DCB
8809 /* Setup DCB netlink interface */
8810 i40e_dcbnl_setup(vsi);
8811#endif /* CONFIG_I40E_DCB */
41c445ff
JB		 8812 /* fall through */
8813
8814 case I40E_VSI_FDIR:
8815 /* set up vectors and rings if needed */
8816 ret = i40e_vsi_setup_vectors(vsi);
8817 if (ret)
8818 goto err_msix;
8819
8820 ret = i40e_alloc_rings(vsi);
8821 if (ret)
8822 goto err_rings;
8823
8824 /* map all of the rings to the q_vectors */
8825 i40e_vsi_map_rings_to_vectors(vsi);
8826
8827 i40e_vsi_reset_stats(vsi);
8828 break;
8829
8830 default:
8831 /* no netdev or rings for the other VSI types */
8832 break;
8833 }
8834
8835 return vsi;
8836
8837err_rings:
8838 i40e_vsi_free_q_vectors(vsi);
8839err_msix:
8840 if (vsi->netdev_registered) {
8841 vsi->netdev_registered = false;
8842 unregister_netdev(vsi->netdev);
8843 free_netdev(vsi->netdev);
8844 vsi->netdev = NULL;
8845 }
8846err_netdev:
8847 i40e_aq_delete_element(&pf->hw, vsi->seid, NULL);
8848err_vsi:
8849 i40e_vsi_clear(vsi);
8850err_alloc:
8851 return NULL;
8852}
8853
8854/**
8855 * i40e_veb_get_bw_info - Query VEB BW information
8856 * @veb: the veb to query
8857 *
8858 * Query the Tx scheduler BW configuration data for given VEB
8859 **/
8860static int i40e_veb_get_bw_info(struct i40e_veb *veb)
8861{
8862 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data;
8863 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data;
8864 struct i40e_pf *pf = veb->pf;
8865 struct i40e_hw *hw = &pf->hw;
8866 u32 tc_bw_max;
8867 int ret = 0;
8868 int i;
8869
8870 ret = i40e_aq_query_switch_comp_bw_config(hw, veb->seid,
8871 &bw_data, NULL);
8872 if (ret) {
8873 dev_info(&pf->pdev->dev,
8874 "query veb bw config failed, aq_err=%d\n",
8875 hw->aq.asq_last_status);
8876 goto out;
8877 }
8878
8879 ret = i40e_aq_query_switch_comp_ets_config(hw, veb->seid,
8880 &ets_data, NULL);
8881 if (ret) {
8882 dev_info(&pf->pdev->dev,
8883 "query veb bw ets config failed, aq_err=%d\n",
8884 hw->aq.asq_last_status);
8885 goto out;
8886 }
8887
8888 veb->bw_limit = le16_to_cpu(ets_data.port_bw_limit);
8889 veb->bw_max_quanta = ets_data.tc_bw_max;
8890 veb->is_abs_credits = bw_data.absolute_credits_enable;
23cd1f09 8891 veb->enabled_tc = ets_data.tc_valid_bits;
41c445ff
JB		 8892 tc_bw_max = le16_to_cpu(bw_data.tc_bw_max[0]) |
8893 (le16_to_cpu(bw_data.tc_bw_max[1]) << 16);
8894 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
8895 veb->bw_tc_share_credits[i] = bw_data.tc_bw_share_credits[i];
8896 veb->bw_tc_limit_credits[i] =
8897 le16_to_cpu(bw_data.tc_bw_limits[i]);
8898 veb->bw_tc_max_quanta[i] = ((tc_bw_max >> (i*4)) & 0x7);
8899 }
8900
8901out:
8902 return ret;
8903}
8904
8905/**
8906 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
8907 * @pf: board private structure
8908 *
8909 * On error: returns error code (negative)
8910 * On success: returns vsi index in PF (positive)
8911 **/
8912static int i40e_veb_mem_alloc(struct i40e_pf *pf)
8913{
8914 int ret = -ENOENT;
8915 struct i40e_veb *veb;
8916 int i;
8917
8918 /* Need to protect the allocation of switch elements at the PF level */
8919 mutex_lock(&pf->switch_mutex);
8920
8921 /* VEB list may be fragmented if VEB creation/destruction has
8922 * been happening. We can afford to do a quick scan to look
8923 * for any free slots in the list.
8924 *
8925 * find next empty veb slot, looping back around if necessary
8926 */
8927 i = 0;
8928 while ((i < I40E_MAX_VEB) && (pf->veb[i] != NULL))
8929 i++;
8930 if (i >= I40E_MAX_VEB) {
8931 ret = -ENOMEM;
8932 goto err_alloc_veb; /* out of VEB slots! */
8933 }
8934
8935 veb = kzalloc(sizeof(*veb), GFP_KERNEL);
8936 if (!veb) {
8937 ret = -ENOMEM;
8938 goto err_alloc_veb;
8939 }
8940 veb->pf = pf;
8941 veb->idx = i;
8942 veb->enabled_tc = 1;
8943
8944 pf->veb[i] = veb;
8945 ret = i;
8946err_alloc_veb:
8947 mutex_unlock(&pf->switch_mutex);
8948 return ret;
8949}
8950
8951/**
8952 * i40e_switch_branch_release - Delete a branch of the switch tree
8953 * @branch: where to start deleting
8954 *
8955 * This uses recursion to find the tips of the branch to be
8956 * removed, deleting until we get back to and can delete this VEB.
8957 **/
8958static void i40e_switch_branch_release(struct i40e_veb *branch)
8959{
8960 struct i40e_pf *pf = branch->pf;
8961 u16 branch_seid = branch->seid;
8962 u16 veb_idx = branch->idx;
8963 int i;
8964
8965 /* release any VEBs on this VEB - RECURSION */
8966 for (i = 0; i < I40E_MAX_VEB; i++) {
8967 if (!pf->veb[i])
8968 continue;
8969 if (pf->veb[i]->uplink_seid == branch->seid)
8970 i40e_switch_branch_release(pf->veb[i]);
8971 }
8972
8973 /* Release the VSIs on this VEB, but not the owner VSI.
8974 *
8975 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
8976 * the VEB itself, so don't use (*branch) after this loop.
8977 */
505682cd 8978 for (i = 0; i < pf->num_alloc_vsi; i++) {
41c445ff
JB		 8979 if (!pf->vsi[i])
8980 continue;
8981 if (pf->vsi[i]->uplink_seid == branch_seid &&
8982 (pf->vsi[i]->flags & I40E_VSI_FLAG_VEB_OWNER) == 0) {
8983 i40e_vsi_release(pf->vsi[i]);
8984 }
8985 }
8986
8987 /* There's one corner case where the VEB might not have been
8988 * removed, so double check it here and remove it if needed.
8989 * This case happens if the veb was created from the debugfs
8990 * commands and no VSIs were added to it.
8991 */
8992 if (pf->veb[veb_idx])
8993 i40e_veb_release(pf->veb[veb_idx]);
8994}
8995
8996/**
8997 * i40e_veb_clear - remove veb struct
8998 * @veb: the veb to remove
8999 **/
9000static void i40e_veb_clear(struct i40e_veb *veb)
9001{
9002 if (!veb)
9003 return;
9004
9005 if (veb->pf) {
9006 struct i40e_pf *pf = veb->pf;
9007
9008 mutex_lock(&pf->switch_mutex);
9009 if (pf->veb[veb->idx] == veb)
9010 pf->veb[veb->idx] = NULL;
9011 mutex_unlock(&pf->switch_mutex);
9012 }
9013
9014 kfree(veb);
9015}
9016
9017/**
9018 * i40e_veb_release - Delete a VEB and free its resources
9019 * @veb: the VEB being removed
9020 **/
9021void i40e_veb_release(struct i40e_veb *veb)
9022{
9023 struct i40e_vsi *vsi = NULL;
9024 struct i40e_pf *pf;
9025 int i, n = 0;
9026
9027 pf = veb->pf;
9028
9029 /* find the remaining VSI and check for extras */
505682cd 9030 for (i = 0; i < pf->num_alloc_vsi; i++) {
41c445ff
JB		 9031 if (pf->vsi[i] && pf->vsi[i]->uplink_seid == veb->seid) {
9032 n++;
9033 vsi = pf->vsi[i];
9034 }
9035 }
9036 if (n != 1) {
9037 dev_info(&pf->pdev->dev,
9038 "can't remove VEB %d with %d VSIs left\n",
9039 veb->seid, n);
9040 return;
9041 }
9042
9043 /* move the remaining VSI to uplink veb */
9044 vsi->flags &= ~I40E_VSI_FLAG_VEB_OWNER;
9045 if (veb->uplink_seid) {
9046 vsi->uplink_seid = veb->uplink_seid;
9047 if (veb->uplink_seid == pf->mac_seid)
9048 vsi->veb_idx = I40E_NO_VEB;
9049 else
9050 vsi->veb_idx = veb->veb_idx;
9051 } else {
9052 /* floating VEB */
9053 vsi->uplink_seid = pf->vsi[pf->lan_vsi]->uplink_seid;
9054 vsi->veb_idx = pf->vsi[pf->lan_vsi]->veb_idx;
9055 }
9056
9057 i40e_aq_delete_element(&pf->hw, veb->seid, NULL);
9058 i40e_veb_clear(veb);
41c445ff
JB		 9059}
9060
9061/**
9062 * i40e_add_veb - create the VEB in the switch
9063 * @veb: the VEB to be instantiated
9064 * @vsi: the controlling VSI
9065 **/
9066static int i40e_add_veb(struct i40e_veb *veb, struct i40e_vsi *vsi)
9067{
56747264 9068 bool is_default = false;
e1c51b95 9069 bool is_cloud = false;
41c445ff
JB		 9070 int ret;
9071
9072 /* get a VEB from the hardware */
9073 ret = i40e_aq_add_veb(&veb->pf->hw, veb->uplink_seid, vsi->seid,
e1c51b95
KS		 9074 veb->enabled_tc, is_default,
9075 is_cloud, &veb->seid, NULL);
41c445ff
JB		 9076 if (ret) {
9077 dev_info(&veb->pf->pdev->dev,
9078 "couldn't add VEB, err %d, aq_err %d\n",
9079 ret, veb->pf->hw.aq.asq_last_status);
9080 return -EPERM;
9081 }
9082
9083 /* get statistics counter */
9084 ret = i40e_aq_get_veb_parameters(&veb->pf->hw, veb->seid, NULL, NULL,
9085 &veb->stats_idx, NULL, NULL, NULL);
9086 if (ret) {
9087 dev_info(&veb->pf->pdev->dev,
9088 "couldn't get VEB statistics idx, err %d, aq_err %d\n",
9089 ret, veb->pf->hw.aq.asq_last_status);
9090 return -EPERM;
9091 }
9092 ret = i40e_veb_get_bw_info(veb);
9093 if (ret) {
9094 dev_info(&veb->pf->pdev->dev,
9095 "couldn't get VEB bw info, err %d, aq_err %d\n",
9096 ret, veb->pf->hw.aq.asq_last_status);
9097 i40e_aq_delete_element(&veb->pf->hw, veb->seid, NULL);
9098 return -ENOENT;
9099 }
9100
9101 vsi->uplink_seid = veb->seid;
9102 vsi->veb_idx = veb->idx;
9103 vsi->flags |= I40E_VSI_FLAG_VEB_OWNER;
9104
9105 return 0;
9106}
9107
9108/**
9109 * i40e_veb_setup - Set up a VEB
9110 * @pf: board private structure
9111 * @flags: VEB setup flags
9112 * @uplink_seid: the switch element to link to
9113 * @vsi_seid: the initial VSI seid
9114 * @enabled_tc: Enabled TC bit-map
9115 *
9116 * This allocates the sw VEB structure and links it into the switch
9117 * It is possible and legal for this to be a duplicate of an already
9118 * existing VEB. It is also possible for both uplink and vsi seids
9119 * to be zero, in order to create a floating VEB.
9120 *
9121 * Returns pointer to the successfully allocated VEB sw struct on
9122 * success, otherwise returns NULL on failure.
9123 **/
9124struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags,
9125 u16 uplink_seid, u16 vsi_seid,
9126 u8 enabled_tc)
9127{
9128 struct i40e_veb *veb, *uplink_veb = NULL;
9129 int vsi_idx, veb_idx;
9130 int ret;
9131
9132 /* if one seid is 0, the other must be 0 to create a floating relay */
9133 if ((uplink_seid == 0 || vsi_seid == 0) &&
9134 (uplink_seid + vsi_seid != 0)) {
9135 dev_info(&pf->pdev->dev,
9136 "one, not both seid's are 0: uplink=%d vsi=%d\n",
9137 uplink_seid, vsi_seid);
9138 return NULL;
9139 }
9140
9141 /* make sure there is such a vsi and uplink */
505682cd 9142 for (vsi_idx = 0; vsi_idx < pf->num_alloc_vsi; vsi_idx++)
41c445ff
JB		 9143 if (pf->vsi[vsi_idx] && pf->vsi[vsi_idx]->seid == vsi_seid)
9144 break;
505682cd 9145 if (vsi_idx >= pf->num_alloc_vsi && vsi_seid != 0) {
41c445ff
JB		 9146 dev_info(&pf->pdev->dev, "vsi seid %d not found\n",
9147 vsi_seid);
9148 return NULL;
9149 }
9150
9151 if (uplink_seid && uplink_seid != pf->mac_seid) {
9152 for (veb_idx = 0; veb_idx < I40E_MAX_VEB; veb_idx++) {
9153 if (pf->veb[veb_idx] &&
9154 pf->veb[veb_idx]->seid == uplink_seid) {
9155 uplink_veb = pf->veb[veb_idx];
9156 break;
9157 }
9158 }
9159 if (!uplink_veb) {
9160 dev_info(&pf->pdev->dev,
9161 "uplink seid %d not found\n", uplink_seid);
9162 return NULL;
9163 }
9164 }
9165
9166 /* get veb sw struct */
9167 veb_idx = i40e_veb_mem_alloc(pf);
9168 if (veb_idx < 0)
9169 goto err_alloc;
9170 veb = pf->veb[veb_idx];
9171 veb->flags = flags;
9172 veb->uplink_seid = uplink_seid;
9173 veb->veb_idx = (uplink_veb ? uplink_veb->idx : I40E_NO_VEB);
9174 veb->enabled_tc = (enabled_tc ? enabled_tc : 0x1);
9175
9176 /* create the VEB in the switch */
9177 ret = i40e_add_veb(veb, pf->vsi[vsi_idx]);
9178 if (ret)
9179 goto err_veb;
1bb8b935
SN		 9180 if (vsi_idx == pf->lan_vsi)
9181 pf->lan_veb = veb->idx;
41c445ff
JB		 9182
9183 return veb;
9184
9185err_veb:
9186 i40e_veb_clear(veb);
9187err_alloc:
9188 return NULL;
9189}
9190
9191/**
b40c82e6 9192 * i40e_setup_pf_switch_element - set PF vars based on switch type
41c445ff
JB		 9193 * @pf: board private structure
9194 * @ele: element we are building info from
9195 * @num_reported: total number of elements
9196 * @printconfig: should we print the contents
9197 *
9198 * helper function to assist in extracting a few useful SEID values.
9199 **/
9200static void i40e_setup_pf_switch_element(struct i40e_pf *pf,
9201 struct i40e_aqc_switch_config_element_resp *ele,
9202 u16 num_reported, bool printconfig)
9203{
9204 u16 downlink_seid = le16_to_cpu(ele->downlink_seid);
9205 u16 uplink_seid = le16_to_cpu(ele->uplink_seid);
9206 u8 element_type = ele->element_type;
9207 u16 seid = le16_to_cpu(ele->seid);
9208
9209 if (printconfig)
9210 dev_info(&pf->pdev->dev,
9211 "type=%d seid=%d uplink=%d downlink=%d\n",
9212 element_type, seid, uplink_seid, downlink_seid);
9213
9214 switch (element_type) {
9215 case I40E_SWITCH_ELEMENT_TYPE_MAC:
9216 pf->mac_seid = seid;
9217 break;
9218 case I40E_SWITCH_ELEMENT_TYPE_VEB:
9219 /* Main VEB? */
9220 if (uplink_seid != pf->mac_seid)
9221 break;
9222 if (pf->lan_veb == I40E_NO_VEB) {
9223 int v;
9224
9225 /* find existing or else empty VEB */
9226 for (v = 0; v < I40E_MAX_VEB; v++) {
9227 if (pf->veb[v] && (pf->veb[v]->seid == seid)) {
9228 pf->lan_veb = v;
9229 break;
9230 }
9231 }
9232 if (pf->lan_veb == I40E_NO_VEB) {
9233 v = i40e_veb_mem_alloc(pf);
9234 if (v < 0)
9235 break;
9236 pf->lan_veb = v;
9237 }
9238 }
9239
9240 pf->veb[pf->lan_veb]->seid = seid;
9241 pf->veb[pf->lan_veb]->uplink_seid = pf->mac_seid;
9242 pf->veb[pf->lan_veb]->pf = pf;
9243 pf->veb[pf->lan_veb]->veb_idx = I40E_NO_VEB;
9244 break;
9245 case I40E_SWITCH_ELEMENT_TYPE_VSI:
9246 if (num_reported != 1)
9247 break;
9248 /* This is immediately after a reset so we can assume this is
9249 * the PF's VSI
9250 */
9251 pf->mac_seid = uplink_seid;
9252 pf->pf_seid = downlink_seid;
9253 pf->main_vsi_seid = seid;
9254 if (printconfig)
9255 dev_info(&pf->pdev->dev,
9256 "pf_seid=%d main_vsi_seid=%d\n",
9257 pf->pf_seid, pf->main_vsi_seid);
9258 break;
9259 case I40E_SWITCH_ELEMENT_TYPE_PF:
9260 case I40E_SWITCH_ELEMENT_TYPE_VF:
9261 case I40E_SWITCH_ELEMENT_TYPE_EMP:
9262 case I40E_SWITCH_ELEMENT_TYPE_BMC:
9263 case I40E_SWITCH_ELEMENT_TYPE_PE:
9264 case I40E_SWITCH_ELEMENT_TYPE_PA:
9265 /* ignore these for now */
9266 break;
9267 default:
9268 dev_info(&pf->pdev->dev, "unknown element type=%d seid=%d\n",
9269 element_type, seid);
9270 break;
9271 }
9272}
9273
9274/**
9275 * i40e_fetch_switch_configuration - Get switch config from firmware
9276 * @pf: board private structure
9277 * @printconfig: should we print the contents
9278 *
9279 * Get the current switch configuration from the device and
9280 * extract a few useful SEID values.
9281 **/
9282int i40e_fetch_switch_configuration(struct i40e_pf *pf, bool printconfig)
9283{
9284 struct i40e_aqc_get_switch_config_resp *sw_config;
9285 u16 next_seid = 0;
9286 int ret = 0;
9287 u8 *aq_buf;
9288 int i;
9289
9290 aq_buf = kzalloc(I40E_AQ_LARGE_BUF, GFP_KERNEL);
9291 if (!aq_buf)
9292 return -ENOMEM;
9293
9294 sw_config = (struct i40e_aqc_get_switch_config_resp *)aq_buf;
9295 do {
9296 u16 num_reported, num_total;
9297
9298 ret = i40e_aq_get_switch_config(&pf->hw, sw_config,
9299 I40E_AQ_LARGE_BUF,
9300 &next_seid, NULL);
9301 if (ret) {
9302 dev_info(&pf->pdev->dev,
9303 "get switch config failed %d aq_err=%x\n",
9304 ret, pf->hw.aq.asq_last_status);
9305 kfree(aq_buf);
9306 return -ENOENT;
9307 }
9308
9309 num_reported = le16_to_cpu(sw_config->header.num_reported);
9310 num_total = le16_to_cpu(sw_config->header.num_total);
9311
9312 if (printconfig)
9313 dev_info(&pf->pdev->dev,
9314 "header: %d reported %d total\n",
9315 num_reported, num_total);
9316
41c445ff
JB		 9317 for (i = 0; i < num_reported; i++) {
9318 struct i40e_aqc_switch_config_element_resp *ele =
9319 &sw_config->element[i];
9320
9321 i40e_setup_pf_switch_element(pf, ele, num_reported,
9322 printconfig);
9323 }
9324 } while (next_seid != 0);
9325
9326 kfree(aq_buf);
9327 return ret;
9328}
9329
9330/**
9331 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
9332 * @pf: board private structure
bc7d338f 9333 * @reinit: if the Main VSI needs to re-initialized.
41c445ff
JB		 9334 *
9335 * Returns 0 on success, negative value on failure
9336 **/
bc7d338f 9337static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit)
41c445ff
JB		 9338{
9339 int ret;
9340
9341 /* find out what's out there already */
9342 ret = i40e_fetch_switch_configuration(pf, false);
9343 if (ret) {
9344 dev_info(&pf->pdev->dev,
9345 "couldn't fetch switch config, err %d, aq_err %d\n",
9346 ret, pf->hw.aq.asq_last_status);
9347 return ret;
9348 }
9349 i40e_pf_reset_stats(pf);
9350
41c445ff 9351 /* first time setup */
bc7d338f 9352 if (pf->lan_vsi == I40E_NO_VSI || reinit) {
41c445ff
JB		 9353 struct i40e_vsi *vsi = NULL;
9354 u16 uplink_seid;
9355
9356 /* Set up the PF VSI associated with the PF's main VSI
9357 * that is already in the HW switch
9358 */
9359 if (pf->lan_veb != I40E_NO_VEB && pf->veb[pf->lan_veb])
9360 uplink_seid = pf->veb[pf->lan_veb]->seid;
9361 else
9362 uplink_seid = pf->mac_seid;
bc7d338f
ASJ		 9363 if (pf->lan_vsi == I40E_NO_VSI)
9364 vsi = i40e_vsi_setup(pf, I40E_VSI_MAIN, uplink_seid, 0);
9365 else if (reinit)
9366 vsi = i40e_vsi_reinit_setup(pf->vsi[pf->lan_vsi]);
41c445ff
JB		 9367 if (!vsi) {
9368 dev_info(&pf->pdev->dev, "setup of MAIN VSI failed\n");
9369 i40e_fdir_teardown(pf);
9370 return -EAGAIN;
9371 }
41c445ff
JB		 9372 } else {
9373 /* force a reset of TC and queue layout configurations */
9374 u8 enabled_tc = pf->vsi[pf->lan_vsi]->tc_config.enabled_tc;
9375 pf->vsi[pf->lan_vsi]->tc_config.enabled_tc = 0;
9376 pf->vsi[pf->lan_vsi]->seid = pf->main_vsi_seid;
9377 i40e_vsi_config_tc(pf->vsi[pf->lan_vsi], enabled_tc);
9378 }
9379 i40e_vlan_stripping_disable(pf->vsi[pf->lan_vsi]);
9380
cbf61325
ASJ		 9381 i40e_fdir_sb_setup(pf);
9382
41c445ff
JB		 9383 /* Setup static PF queue filter control settings */
9384 ret = i40e_setup_pf_filter_control(pf);
9385 if (ret) {
9386 dev_info(&pf->pdev->dev, "setup_pf_filter_control failed: %d\n",
9387 ret);
9388 /* Failure here should not stop continuing other steps */
9389 }
9390
9391 /* enable RSS in the HW, even for only one queue, as the stack can use
9392 * the hash
9393 */
9394 if ((pf->flags & I40E_FLAG_RSS_ENABLED))
9395 i40e_config_rss(pf);
9396
9397 /* fill in link information and enable LSE reporting */
21af70fb 9398 i40e_aq_get_link_info(&pf->hw, true, NULL, NULL);
a34a6711
MW		 9399 i40e_link_event(pf);
9400
d52c20b7 9401 /* Initialize user-specific link properties */
41c445ff
JB		 9402 pf->fc_autoneg_status = ((pf->hw.phy.link_info.an_info &
9403 I40E_AQ_AN_COMPLETED) ? true : false);
d52c20b7 9404
beb0dff1
JK		 9405 i40e_ptp_init(pf);
9406
41c445ff
JB		 9407 return ret;
9408}
9409
41c445ff
JB		 9410/**
9411 * i40e_determine_queue_usage - Work out queue distribution
9412 * @pf: board private structure
9413 **/
9414static void i40e_determine_queue_usage(struct i40e_pf *pf)
9415{
41c445ff
JB		 9416 int queues_left;
9417
9418 pf->num_lan_qps = 0;
38e00438
VD		 9419#ifdef I40E_FCOE
9420 pf->num_fcoe_qps = 0;
9421#endif
41c445ff
JB		 9422
9423 /* Find the max queues to be put into basic use. We'll always be
9424 * using TC0, whether or not DCB is running, and TC0 will get the
9425 * big RSS set.
9426 */
9427 queues_left = pf->hw.func_caps.num_tx_qp;
9428
cbf61325 9429 if ((queues_left == 1) ||
9aa7e935 9430 !(pf->flags & I40E_FLAG_MSIX_ENABLED)) {
41c445ff
JB		 9431 /* one qp for PF, no queues for anything else */
9432 queues_left = 0;
9433 pf->rss_size = pf->num_lan_qps = 1;
9434
9435 /* make sure all the fancies are disabled */
60ea5f83 9436 pf->flags &= ~(I40E_FLAG_RSS_ENABLED |
38e00438
VD		 9437#ifdef I40E_FCOE
9438 I40E_FLAG_FCOE_ENABLED |
9439#endif
60ea5f83
JB		 9440 I40E_FLAG_FD_SB_ENABLED |
9441 I40E_FLAG_FD_ATR_ENABLED |
4d9b6043 9442 I40E_FLAG_DCB_CAPABLE |
60ea5f83
JB		 9443 I40E_FLAG_SRIOV_ENABLED |
9444 I40E_FLAG_VMDQ_ENABLED);
9aa7e935
FZ		 9445 } else if (!(pf->flags & (I40E_FLAG_RSS_ENABLED |
9446 I40E_FLAG_FD_SB_ENABLED |
bbe7d0e0 9447 I40E_FLAG_FD_ATR_ENABLED |
4d9b6043 9448 I40E_FLAG_DCB_CAPABLE))) {
9aa7e935
FZ		 9449 /* one qp for PF */
9450 pf->rss_size = pf->num_lan_qps = 1;
9451 queues_left -= pf->num_lan_qps;
9452
9453 pf->flags &= ~(I40E_FLAG_RSS_ENABLED |
38e00438
VD		 9454#ifdef I40E_FCOE
9455 I40E_FLAG_FCOE_ENABLED |
9456#endif
9aa7e935
FZ		 9457 I40E_FLAG_FD_SB_ENABLED |
9458 I40E_FLAG_FD_ATR_ENABLED |
9459 I40E_FLAG_DCB_ENABLED |
9460 I40E_FLAG_VMDQ_ENABLED);
41c445ff 9461 } else {
cbf61325 9462 /* Not enough queues for all TCs */
4d9b6043 9463 if ((pf->flags & I40E_FLAG_DCB_CAPABLE) &&
cbf61325 9464 (queues_left < I40E_MAX_TRAFFIC_CLASS)) {
4d9b6043 9465 pf->flags &= ~I40E_FLAG_DCB_CAPABLE;
cbf61325
ASJ		 9466 dev_info(&pf->pdev->dev, "not enough queues for DCB. DCB is disabled.\n");
9467 }
9a3bd2f1
ASJ		 9468 pf->num_lan_qps = max_t(int, pf->rss_size_max,
9469 num_online_cpus());
9470 pf->num_lan_qps = min_t(int, pf->num_lan_qps,
9471 pf->hw.func_caps.num_tx_qp);
9472
cbf61325
ASJ		 9473 queues_left -= pf->num_lan_qps;
9474 }
9475
38e00438
VD		 9476#ifdef I40E_FCOE
9477 if (pf->flags & I40E_FLAG_FCOE_ENABLED) {
9478 if (I40E_DEFAULT_FCOE <= queues_left) {
9479 pf->num_fcoe_qps = I40E_DEFAULT_FCOE;
9480 } else if (I40E_MINIMUM_FCOE <= queues_left) {
9481 pf->num_fcoe_qps = I40E_MINIMUM_FCOE;
9482 } else {
9483 pf->num_fcoe_qps = 0;
9484 pf->flags &= ~I40E_FLAG_FCOE_ENABLED;
9485 dev_info(&pf->pdev->dev, "not enough queues for FCoE. FCoE feature will be disabled\n");
9486 }
9487
9488 queues_left -= pf->num_fcoe_qps;
9489 }
9490
9491#endif
cbf61325
ASJ		 9492 if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
9493 if (queues_left > 1) {
9494 queues_left -= 1; /* save 1 queue for FD */
9495 } else {
9496 pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
9497 dev_info(&pf->pdev->dev, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9498 }
41c445ff
JB		 9499 }
9500
9501 if ((pf->flags & I40E_FLAG_SRIOV_ENABLED) &&
9502 pf->num_vf_qps && pf->num_req_vfs && queues_left) {
cbf61325
ASJ		 9503 pf->num_req_vfs = min_t(int, pf->num_req_vfs,
9504 (queues_left / pf->num_vf_qps));
41c445ff
JB		 9505 queues_left -= (pf->num_req_vfs * pf->num_vf_qps);
9506 }
9507
9508 if ((pf->flags & I40E_FLAG_VMDQ_ENABLED) &&
9509 pf->num_vmdq_vsis && pf->num_vmdq_qps && queues_left) {
9510 pf->num_vmdq_vsis = min_t(int, pf->num_vmdq_vsis,
9511 (queues_left / pf->num_vmdq_qps));
9512 queues_left -= (pf->num_vmdq_vsis * pf->num_vmdq_qps);
9513 }
9514
f8ff1464 9515 pf->queues_left = queues_left;
38e00438
VD		 9516#ifdef I40E_FCOE
9517 dev_info(&pf->pdev->dev, "fcoe queues = %d\n", pf->num_fcoe_qps);
9518#endif
41c445ff
JB		 9519}
9520
9521/**
9522 * i40e_setup_pf_filter_control - Setup PF static filter control
9523 * @pf: PF to be setup
9524 *
b40c82e6 9525 * i40e_setup_pf_filter_control sets up a PF's initial filter control
41c445ff
JB		 9526 * settings. If PE/FCoE are enabled then it will also set the per PF
9527 * based filter sizes required for them. It also enables Flow director,
9528 * ethertype and macvlan type filter settings for the pf.
9529 *
9530 * Returns 0 on success, negative on failure
9531 **/
9532static int i40e_setup_pf_filter_control(struct i40e_pf *pf)
9533{
9534 struct i40e_filter_control_settings *settings = &pf->filter_settings;
9535
9536 settings->hash_lut_size = I40E_HASH_LUT_SIZE_128;
9537
9538 /* Flow Director is enabled */
60ea5f83 9539 if (pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED))
41c445ff
JB		 9540 settings->enable_fdir = true;
9541
9542 /* Ethtype and MACVLAN filters enabled for PF */
9543 settings->enable_ethtype = true;
9544 settings->enable_macvlan = true;
9545
9546 if (i40e_set_filter_control(&pf->hw, settings))
9547 return -ENOENT;
9548
9549 return 0;
9550}
9551
0c22b3dd
JB		 9552#define INFO_STRING_LEN 255
9553static void i40e_print_features(struct i40e_pf *pf)
9554{
9555 struct i40e_hw *hw = &pf->hw;
9556 char *buf, *string;
9557
9558 string = kzalloc(INFO_STRING_LEN, GFP_KERNEL);
9559 if (!string) {
9560 dev_err(&pf->pdev->dev, "Features string allocation failed\n");
9561 return;
9562 }
9563
9564 buf = string;
9565
9566 buf += sprintf(string, "Features: PF-id[%d] ", hw->pf_id);
9567#ifdef CONFIG_PCI_IOV
9568 buf += sprintf(buf, "VFs: %d ", pf->num_req_vfs);
9569#endif
aba237d1
MW		 9570 buf += sprintf(buf, "VSIs: %d QP: %d RX: %s ",
9571 pf->hw.func_caps.num_vsis,
9572 pf->vsi[pf->lan_vsi]->num_queue_pairs,
9573 pf->flags & I40E_FLAG_RX_PS_ENABLED ? "PS" : "1BUF");
0c22b3dd
JB		 9574
9575 if (pf->flags & I40E_FLAG_RSS_ENABLED)
9576 buf += sprintf(buf, "RSS ");
0c22b3dd 9577 if (pf->flags & I40E_FLAG_FD_ATR_ENABLED)
c6423ff1
AA		 9578 buf += sprintf(buf, "FD_ATR ");
9579 if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
9580 buf += sprintf(buf, "FD_SB ");
0c22b3dd 9581 buf += sprintf(buf, "NTUPLE ");
c6423ff1 9582 }
4d9b6043 9583 if (pf->flags & I40E_FLAG_DCB_CAPABLE)
0c22b3dd
JB		 9584 buf += sprintf(buf, "DCB ");
9585 if (pf->flags & I40E_FLAG_PTP)
9586 buf += sprintf(buf, "PTP ");
38e00438
VD		 9587#ifdef I40E_FCOE
9588 if (pf->flags & I40E_FLAG_FCOE_ENABLED)
9589 buf += sprintf(buf, "FCOE ");
9590#endif
0c22b3dd
JB		 9591
9592 BUG_ON(buf > (string + INFO_STRING_LEN));
9593 dev_info(&pf->pdev->dev, "%s\n", string);
9594 kfree(string);
9595}
9596
41c445ff
JB		 9597/**
9598 * i40e_probe - Device initialization routine
9599 * @pdev: PCI device information struct
9600 * @ent: entry in i40e_pci_tbl
9601 *
b40c82e6
JK		 9602 * i40e_probe initializes a PF identified by a pci_dev structure.
9603 * The OS initialization, configuring of the PF private structure,
41c445ff
JB		 9604 * and a hardware reset occur.
9605 *
9606 * Returns 0 on success, negative on failure
9607 **/
9608static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
9609{
e827845c 9610 struct i40e_aq_get_phy_abilities_resp abilities;
e815665e 9611 unsigned long ioremap_len;
41c445ff
JB		 9612 struct i40e_pf *pf;
9613 struct i40e_hw *hw;
93cd765b 9614 static u16 pfs_found;
d4dfb81a 9615 u16 link_status;
41c445ff
JB		 9616 int err = 0;
9617 u32 len;
8a9eb7d3 9618 u32 i;
41c445ff
JB		 9619
9620 err = pci_enable_device_mem(pdev);
9621 if (err)
9622 return err;
9623
9624 /* set up for high or low dma */
6494294f 9625 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
6494294f 9626 if (err) {
e3e3bfdd
JS		 9627 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9628 if (err) {
9629 dev_err(&pdev->dev,
9630 "DMA configuration failed: 0x%x\n", err);
9631 goto err_dma;
9632 }
41c445ff
JB		 9633 }
9634
9635 /* set up pci connections */
9636 err = pci_request_selected_regions(pdev, pci_select_bars(pdev,
9637 IORESOURCE_MEM), i40e_driver_name);
9638 if (err) {
9639 dev_info(&pdev->dev,
9640 "pci_request_selected_regions failed %d\n", err);
9641 goto err_pci_reg;
9642 }
9643
9644 pci_enable_pcie_error_reporting(pdev);
9645 pci_set_master(pdev);
9646
9647 /* Now that we have a PCI connection, we need to do the
9648 * low level device setup. This is primarily setting up
9649 * the Admin Queue structures and then querying for the
9650 * device's current profile information.
9651 */
9652 pf = kzalloc(sizeof(*pf), GFP_KERNEL);
9653 if (!pf) {
9654 err = -ENOMEM;
9655 goto err_pf_alloc;
9656 }
9657 pf->next_vsi = 0;
9658 pf->pdev = pdev;
9659 set_bit(__I40E_DOWN, &pf->state);
9660
9661 hw = &pf->hw;
9662 hw->back = pf;
232f4706 9663
e815665e 9664 ioremap_len = min_t(unsigned long, pci_resource_len(pdev, 0),
232f4706
AS		 9665 I40E_MAX_CSR_SPACE);
9666
9667 hw->hw_addr = ioremap(pci_resource_start(pdev, 0), ioremap_len);
41c445ff
JB		 9668 if (!hw->hw_addr) {
9669 err = -EIO;
9670 dev_info(&pdev->dev, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
9671 (unsigned int)pci_resource_start(pdev, 0),
9672 (unsigned int)pci_resource_len(pdev, 0), err);
9673 goto err_ioremap;
9674 }
9675 hw->vendor_id = pdev->vendor;
9676 hw->device_id = pdev->device;
9677 pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
9678 hw->subsystem_vendor_id = pdev->subsystem_vendor;
9679 hw->subsystem_device_id = pdev->subsystem_device;
9680 hw->bus.device = PCI_SLOT(pdev->devfn);
9681 hw->bus.func = PCI_FUNC(pdev->devfn);
93cd765b 9682 pf->instance = pfs_found;
41c445ff 9683
5b5faa43
SN		 9684 if (debug != -1) {
9685 pf->msg_enable = pf->hw.debug_mask;
9686 pf->msg_enable = debug;
9687 }
9688
7134f9ce
JB		 9689 /* do a special CORER for clearing PXE mode once at init */
9690 if (hw->revision_id == 0 &&
9691 (rd32(hw, I40E_GLLAN_RCTL_0) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK)) {
9692 wr32(hw, I40E_GLGEN_RTRIG, I40E_GLGEN_RTRIG_CORER_MASK);
9693 i40e_flush(hw);
9694 msleep(200);
9695 pf->corer_count++;
9696
9697 i40e_clear_pxe_mode(hw);
9698 }
9699
41c445ff 9700 /* Reset here to make sure all is clean and to define PF 'n' */
838d41d9 9701 i40e_clear_hw(hw);
41c445ff
JB		 9702 err = i40e_pf_reset(hw);
9703 if (err) {
9704 dev_info(&pdev->dev, "Initial pf_reset failed: %d\n", err);
9705 goto err_pf_reset;
9706 }
9707 pf->pfr_count++;
9708
9709 hw->aq.num_arq_entries = I40E_AQ_LEN;
9710 hw->aq.num_asq_entries = I40E_AQ_LEN;
9711 hw->aq.arq_buf_size = I40E_MAX_AQ_BUF_SIZE;
9712 hw->aq.asq_buf_size = I40E_MAX_AQ_BUF_SIZE;
9713 pf->adminq_work_limit = I40E_AQ_WORK_LIMIT;
b2008cbf 9714
b294ac70 9715 snprintf(pf->int_name, sizeof(pf->int_name) - 1,
b2008cbf
CW		 9716 "%s-%s:misc",
9717 dev_driver_string(&pf->pdev->dev), dev_name(&pdev->dev));
41c445ff
JB		 9718
9719 err = i40e_init_shared_code(hw);
9720 if (err) {
9721 dev_info(&pdev->dev, "init_shared_code failed: %d\n", err);
9722 goto err_pf_reset;
9723 }
9724
d52c20b7
JB		 9725 /* set up a default setting for link flow control */
9726 pf->hw.fc.requested_mode = I40E_FC_NONE;
9727
41c445ff
JB		 9728 err = i40e_init_adminq(hw);
9729 dev_info(&pdev->dev, "%s\n", i40e_fw_version_str(hw));
9730 if (err) {
9731 dev_info(&pdev->dev,
7aa67613 9732 "The driver for the device stopped because the NVM image is newer than expected. You must install the most recent version of the network driver.\n");
41c445ff
JB		 9733 goto err_pf_reset;
9734 }
9735
7aa67613
CS		 9736 if (hw->aq.api_maj_ver == I40E_FW_API_VERSION_MAJOR &&
9737 hw->aq.api_min_ver > I40E_FW_API_VERSION_MINOR)
278b6f62 9738 dev_info(&pdev->dev,
7aa67613
CS		 9739 "The driver for the device detected a newer version of the NVM image than expected. Please install the most recent version of the network driver.\n");
9740 else if (hw->aq.api_maj_ver < I40E_FW_API_VERSION_MAJOR ||
9741 hw->aq.api_min_ver < (I40E_FW_API_VERSION_MINOR - 1))
278b6f62 9742 dev_info(&pdev->dev,
7aa67613 9743 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
278b6f62 9744
4eb3f768
SN		 9745 i40e_verify_eeprom(pf);
9746
2c5fe33b
JB		 9747 /* Rev 0 hardware was never productized */
9748 if (hw->revision_id < 1)
9749 dev_warn(&pdev->dev, "This device is a pre-production adapter/LOM. Please be aware there may be issues with your hardware. If you are experiencing problems please contact your Intel or hardware representative who provided you with this hardware.\n");
9750
6ff4ef86 9751 i40e_clear_pxe_mode(hw);
41c445ff
JB		 9752 err = i40e_get_capabilities(pf);
9753 if (err)
9754 goto err_adminq_setup;
9755
9756 err = i40e_sw_init(pf);
9757 if (err) {
9758 dev_info(&pdev->dev, "sw_init failed: %d\n", err);
9759 goto err_sw_init;
9760 }
9761
9762 err = i40e_init_lan_hmc(hw, hw->func_caps.num_tx_qp,
9763 hw->func_caps.num_rx_qp,
9764 pf->fcoe_hmc_cntx_num, pf->fcoe_hmc_filt_num);
9765 if (err) {
9766 dev_info(&pdev->dev, "init_lan_hmc failed: %d\n", err);
9767 goto err_init_lan_hmc;
9768 }
9769
9770 err = i40e_configure_lan_hmc(hw, I40E_HMC_MODEL_DIRECT_ONLY);
9771 if (err) {
9772 dev_info(&pdev->dev, "configure_lan_hmc failed: %d\n", err);
9773 err = -ENOENT;
9774 goto err_configure_lan_hmc;
9775 }
9776
b686ece5
NP		 9777 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
9778 * Ignore error return codes because if it was already disabled via
9779 * hardware settings this will fail
9780 */
9781 if (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 3)) ||
9782 (pf->hw.aq.fw_maj_ver < 4)) {
9783 dev_info(&pdev->dev, "Stopping firmware LLDP agent.\n");
9784 i40e_aq_stop_lldp(hw, true, NULL);
9785 }
9786
41c445ff 9787 i40e_get_mac_addr(hw, hw->mac.addr);
f62b5060 9788 if (!is_valid_ether_addr(hw->mac.addr)) {
41c445ff
JB		 9789 dev_info(&pdev->dev, "invalid MAC address %pM\n", hw->mac.addr);
9790 err = -EIO;
9791 goto err_mac_addr;
9792 }
9793 dev_info(&pdev->dev, "MAC address: %pM\n", hw->mac.addr);
9a173901 9794 ether_addr_copy(hw->mac.perm_addr, hw->mac.addr);
1f224ad2
NP		 9795 i40e_get_port_mac_addr(hw, hw->mac.port_addr);
9796 if (is_valid_ether_addr(hw->mac.port_addr))
9797 pf->flags |= I40E_FLAG_PORT_ID_VALID;
38e00438
VD		 9798#ifdef I40E_FCOE
9799 err = i40e_get_san_mac_addr(hw, hw->mac.san_addr);
9800 if (err)
9801 dev_info(&pdev->dev,
9802 "(non-fatal) SAN MAC retrieval failed: %d\n", err);
9803 if (!is_valid_ether_addr(hw->mac.san_addr)) {
9804 dev_warn(&pdev->dev, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
9805 hw->mac.san_addr);
9806 ether_addr_copy(hw->mac.san_addr, hw->mac.addr);
9807 }
9808 dev_info(&pf->pdev->dev, "SAN MAC: %pM\n", hw->mac.san_addr);
9809#endif /* I40E_FCOE */
41c445ff
JB		 9810
9811 pci_set_drvdata(pdev, pf);
9812 pci_save_state(pdev);
4e3b35b0
NP		 9813#ifdef CONFIG_I40E_DCB
9814 err = i40e_init_pf_dcb(pf);
9815 if (err) {
aebfc816 9816 dev_info(&pdev->dev, "DCB init failed %d, disabled\n", err);
4d9b6043 9817 pf->flags &= ~I40E_FLAG_DCB_CAPABLE;
014269ff 9818 /* Continue without DCB enabled */
4e3b35b0
NP		 9819 }
9820#endif /* CONFIG_I40E_DCB */
41c445ff
JB		 9821
9822 /* set up periodic task facility */
9823 setup_timer(&pf->service_timer, i40e_service_timer, (unsigned long)pf);
9824 pf->service_timer_period = HZ;
9825
9826 INIT_WORK(&pf->service_task, i40e_service_task);
9827 clear_bit(__I40E_SERVICE_SCHED, &pf->state);
9828 pf->flags |= I40E_FLAG_NEED_LINK_UPDATE;
9829 pf->link_check_timeout = jiffies;
9830
8e2773ae
SN		 9831 /* WoL defaults to disabled */
9832 pf->wol_en = false;
9833 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
9834
41c445ff
JB		 9835 /* set up the main switch operations */
9836 i40e_determine_queue_usage(pf);
c1147280
JB		 9837 err = i40e_init_interrupt_scheme(pf);
9838 if (err)
9839 goto err_switch_setup;
41c445ff 9840
505682cd
MW		 9841 /* The number of VSIs reported by the FW is the minimum guaranteed
9842 * to us; HW supports far more and we share the remaining pool with
9843 * the other PFs. We allocate space for more than the guarantee with
9844 * the understanding that we might not get them all later.
41c445ff 9845 */
505682cd
MW		 9846 if (pf->hw.func_caps.num_vsis < I40E_MIN_VSI_ALLOC)
9847 pf->num_alloc_vsi = I40E_MIN_VSI_ALLOC;
9848 else
9849 pf->num_alloc_vsi = pf->hw.func_caps.num_vsis;
9850
9851 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
9852 len = sizeof(struct i40e_vsi *) * pf->num_alloc_vsi;
41c445ff 9853 pf->vsi = kzalloc(len, GFP_KERNEL);
ed87ac09
WY		 9854 if (!pf->vsi) {
9855 err = -ENOMEM;
41c445ff 9856 goto err_switch_setup;
ed87ac09 9857 }
41c445ff 9858
bc7d338f 9859 err = i40e_setup_pf_switch(pf, false);
41c445ff
JB		 9860 if (err) {
9861 dev_info(&pdev->dev, "setup_pf_switch failed: %d\n", err);
9862 goto err_vsis;
9863 }
8a9eb7d3 9864 /* if FDIR VSI was set up, start it now */
505682cd 9865 for (i = 0; i < pf->num_alloc_vsi; i++) {
8a9eb7d3
SN		 9866 if (pf->vsi[i] && pf->vsi[i]->type == I40E_VSI_FDIR) {
9867 i40e_vsi_open(pf->vsi[i]);
9868 break;
9869 }
9870 }
41c445ff 9871
7e2453fe
JB		 9872 /* driver is only interested in link up/down and module qualification
9873 * reports from firmware
9874 */
9875 err = i40e_aq_set_phy_int_mask(&pf->hw,
9876 I40E_AQ_EVENT_LINK_UPDOWN |
9877 I40E_AQ_EVENT_MODULE_QUAL_FAIL, NULL);
9878 if (err)
9879 dev_info(&pf->pdev->dev, "set phy mask fail, aq_err %d\n", err);
9880
025b4a54
ASJ		 9881 if (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 33)) ||
9882 (pf->hw.aq.fw_maj_ver < 4)) {
9883 msleep(75);
9884 err = i40e_aq_set_link_restart_an(&pf->hw, true, NULL);
9885 if (err)
9886 dev_info(&pf->pdev->dev, "link restart failed, aq_err=%d\n",
9887 pf->hw.aq.asq_last_status);
cafa2ee6 9888 }
41c445ff
JB		 9889 /* The main driver is (mostly) up and happy. We need to set this state
9890 * before setting up the misc vector or we get a race and the vector
9891 * ends up disabled forever.
9892 */
9893 clear_bit(__I40E_DOWN, &pf->state);
9894
9895 /* In case of MSIX we are going to setup the misc vector right here
9896 * to handle admin queue events etc. In case of legacy and MSI
9897 * the misc functionality and queue processing is combined in
9898 * the same vector and that gets setup at open.
9899 */
9900 if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
9901 err = i40e_setup_misc_vector(pf);
9902 if (err) {
9903 dev_info(&pdev->dev,
9904 "setup of misc vector failed: %d\n", err);
9905 goto err_vsis;
9906 }
9907 }
9908
df805f62 9909#ifdef CONFIG_PCI_IOV
41c445ff
JB		 9910 /* prep for VF support */
9911 if ((pf->flags & I40E_FLAG_SRIOV_ENABLED) &&
4eb3f768
SN		 9912 (pf->flags & I40E_FLAG_MSIX_ENABLED) &&
9913 !test_bit(__I40E_BAD_EEPROM, &pf->state)) {
41c445ff
JB		 9914 u32 val;
9915
9916 /* disable link interrupts for VFs */
9917 val = rd32(hw, I40E_PFGEN_PORTMDIO_NUM);
9918 val &= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK;
9919 wr32(hw, I40E_PFGEN_PORTMDIO_NUM, val);
9920 i40e_flush(hw);
4aeec010
MW		 9921
9922 if (pci_num_vf(pdev)) {
9923 dev_info(&pdev->dev,
9924 "Active VFs found, allocating resources.\n");
9925 err = i40e_alloc_vfs(pf, pci_num_vf(pdev));
9926 if (err)
9927 dev_info(&pdev->dev,
9928 "Error %d allocating resources for existing VFs\n",
9929 err);
9930 }
41c445ff 9931 }
df805f62 9932#endif /* CONFIG_PCI_IOV */
41c445ff 9933
93cd765b
ASJ		 9934 pfs_found++;
9935
41c445ff
JB		 9936 i40e_dbg_pf_init(pf);
9937
9938 /* tell the firmware that we're starting */
44033fac 9939 i40e_send_version(pf);
41c445ff
JB		 9940
9941 /* since everything's happy, start the service_task timer */
9942 mod_timer(&pf->service_timer,
9943 round_jiffies(jiffies + pf->service_timer_period));
9944
38e00438
VD		 9945#ifdef I40E_FCOE
9946 /* create FCoE interface */
9947 i40e_fcoe_vsi_setup(pf);
9948
9949#endif
d4dfb81a
CS		 9950 /* Get the negotiated link width and speed from PCI config space */
9951 pcie_capability_read_word(pf->pdev, PCI_EXP_LNKSTA, &link_status);
9952
9953 i40e_set_pci_config_data(hw, link_status);
9954
69bfb110 9955 dev_info(&pdev->dev, "PCI-Express: %s %s\n",
d4dfb81a
CS		 9956 (hw->bus.speed == i40e_bus_speed_8000 ? "Speed 8.0GT/s" :
9957 hw->bus.speed == i40e_bus_speed_5000 ? "Speed 5.0GT/s" :
9958 hw->bus.speed == i40e_bus_speed_2500 ? "Speed 2.5GT/s" :
9959 "Unknown"),
9960 (hw->bus.width == i40e_bus_width_pcie_x8 ? "Width x8" :
9961 hw->bus.width == i40e_bus_width_pcie_x4 ? "Width x4" :
9962 hw->bus.width == i40e_bus_width_pcie_x2 ? "Width x2" :
9963 hw->bus.width == i40e_bus_width_pcie_x1 ? "Width x1" :
9964 "Unknown"));
9965
9966 if (hw->bus.width < i40e_bus_width_pcie_x8 ||
9967 hw->bus.speed < i40e_bus_speed_8000) {
9968 dev_warn(&pdev->dev, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
9969 dev_warn(&pdev->dev, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
9970 }
9971
e827845c
CS		 9972 /* get the requested speeds from the fw */
9973 err = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, NULL);
9974 if (err)
9975 dev_info(&pf->pdev->dev, "get phy abilities failed, aq_err %d, advertised speed settings may not be correct\n",
9976 err);
9977 pf->hw.phy.link_info.requested_speeds = abilities.link_speed;
9978
0c22b3dd
JB		 9979 /* print a string summarizing features */
9980 i40e_print_features(pf);
9981
41c445ff
JB		 9982 return 0;
9983
9984 /* Unwind what we've done if something failed in the setup */
9985err_vsis:
9986 set_bit(__I40E_DOWN, &pf->state);
41c445ff
JB		 9987 i40e_clear_interrupt_scheme(pf);
9988 kfree(pf->vsi);
04b03013
SN		 9989err_switch_setup:
9990 i40e_reset_interrupt_capability(pf);
41c445ff
JB		 9991 del_timer_sync(&pf->service_timer);
9992err_mac_addr:
9993err_configure_lan_hmc:
9994 (void)i40e_shutdown_lan_hmc(hw);
9995err_init_lan_hmc:
9996 kfree(pf->qp_pile);
41c445ff
JB		 9997err_sw_init:
9998err_adminq_setup:
9999 (void)i40e_shutdown_adminq(hw);
10000err_pf_reset:
10001 iounmap(hw->hw_addr);
10002err_ioremap:
10003 kfree(pf);
10004err_pf_alloc:
10005 pci_disable_pcie_error_reporting(pdev);
10006 pci_release_selected_regions(pdev,
10007 pci_select_bars(pdev, IORESOURCE_MEM));
10008err_pci_reg:
10009err_dma:
10010 pci_disable_device(pdev);
10011 return err;
10012}
10013
10014/**
10015 * i40e_remove - Device removal routine
10016 * @pdev: PCI device information struct
10017 *
10018 * i40e_remove is called by the PCI subsystem to alert the driver
10019 * that is should release a PCI device. This could be caused by a
10020 * Hot-Plug event, or because the driver is going to be removed from
10021 * memory.
10022 **/
10023static void i40e_remove(struct pci_dev *pdev)
10024{
10025 struct i40e_pf *pf = pci_get_drvdata(pdev);
10026 i40e_status ret_code;
41c445ff
JB		 10027 int i;
10028
10029 i40e_dbg_pf_exit(pf);
10030
beb0dff1
JK		 10031 i40e_ptp_stop(pf);
10032
41c445ff
JB		 10033 /* no more scheduling of any task */
10034 set_bit(__I40E_DOWN, &pf->state);
10035 del_timer_sync(&pf->service_timer);
10036 cancel_work_sync(&pf->service_task);
33c62b34 10037 i40e_fdir_teardown(pf);
41c445ff 10038
eb2d80bc
MW		 10039 if (pf->flags & I40E_FLAG_SRIOV_ENABLED) {
10040 i40e_free_vfs(pf);
10041 pf->flags &= ~I40E_FLAG_SRIOV_ENABLED;
10042 }
10043
41c445ff
JB		 10044 i40e_fdir_teardown(pf);
10045
10046 /* If there is a switch structure or any orphans, remove them.
10047 * This will leave only the PF's VSI remaining.
10048 */
10049 for (i = 0; i < I40E_MAX_VEB; i++) {
10050 if (!pf->veb[i])
10051 continue;
10052
10053 if (pf->veb[i]->uplink_seid == pf->mac_seid ||
10054 pf->veb[i]->uplink_seid == 0)
10055 i40e_switch_branch_release(pf->veb[i]);
10056 }
10057
10058 /* Now we can shutdown the PF's VSI, just before we kill
10059 * adminq and hmc.
10060 */
10061 if (pf->vsi[pf->lan_vsi])
10062 i40e_vsi_release(pf->vsi[pf->lan_vsi]);
10063
41c445ff 10064 /* shutdown and destroy the HMC */
60442dea
SN		 10065 if (pf->hw.hmc.hmc_obj) {
10066 ret_code = i40e_shutdown_lan_hmc(&pf->hw);
10067 if (ret_code)
10068 dev_warn(&pdev->dev,
10069 "Failed to destroy the HMC resources: %d\n",
10070 ret_code);
10071 }
41c445ff
JB		 10072
10073 /* shutdown the adminq */
41c445ff
JB		 10074 ret_code = i40e_shutdown_adminq(&pf->hw);
10075 if (ret_code)
10076 dev_warn(&pdev->dev,
10077 "Failed to destroy the Admin Queue resources: %d\n",
10078 ret_code);
10079
10080 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
10081 i40e_clear_interrupt_scheme(pf);
505682cd 10082 for (i = 0; i < pf->num_alloc_vsi; i++) {
41c445ff
JB		 10083 if (pf->vsi[i]) {
10084 i40e_vsi_clear_rings(pf->vsi[i]);
10085 i40e_vsi_clear(pf->vsi[i]);
10086 pf->vsi[i] = NULL;
10087 }
10088 }
10089
10090 for (i = 0; i < I40E_MAX_VEB; i++) {
10091 kfree(pf->veb[i]);
10092 pf->veb[i] = NULL;
10093 }
10094
10095 kfree(pf->qp_pile);
41c445ff
JB		 10096 kfree(pf->vsi);
10097
41c445ff
JB		 10098 iounmap(pf->hw.hw_addr);
10099 kfree(pf);
10100 pci_release_selected_regions(pdev,
10101 pci_select_bars(pdev, IORESOURCE_MEM));
10102
10103 pci_disable_pcie_error_reporting(pdev);
10104 pci_disable_device(pdev);
10105}
10106
10107/**
10108 * i40e_pci_error_detected - warning that something funky happened in PCI land
10109 * @pdev: PCI device information struct
10110 *
10111 * Called to warn that something happened and the error handling steps
10112 * are in progress. Allows the driver to quiesce things, be ready for
10113 * remediation.
10114 **/
10115static pci_ers_result_t i40e_pci_error_detected(struct pci_dev *pdev,
10116 enum pci_channel_state error)
10117{
10118 struct i40e_pf *pf = pci_get_drvdata(pdev);
10119
10120 dev_info(&pdev->dev, "%s: error %d\n", __func__, error);
10121
10122 /* shutdown all operations */
9007bccd
SN		 10123 if (!test_bit(__I40E_SUSPENDED, &pf->state)) {
10124 rtnl_lock();
10125 i40e_prep_for_reset(pf);
10126 rtnl_unlock();
10127 }
41c445ff
JB		 10128
10129 /* Request a slot reset */
10130 return PCI_ERS_RESULT_NEED_RESET;
10131}
10132
10133/**
10134 * i40e_pci_error_slot_reset - a PCI slot reset just happened
10135 * @pdev: PCI device information struct
10136 *
10137 * Called to find if the driver can work with the device now that
10138 * the pci slot has been reset. If a basic connection seems good
10139 * (registers are readable and have sane content) then return a
10140 * happy little PCI_ERS_RESULT_xxx.
10141 **/
10142static pci_ers_result_t i40e_pci_error_slot_reset(struct pci_dev *pdev)
10143{
10144 struct i40e_pf *pf = pci_get_drvdata(pdev);
10145 pci_ers_result_t result;
10146 int err;
10147 u32 reg;
10148
10149 dev_info(&pdev->dev, "%s\n", __func__);
10150 if (pci_enable_device_mem(pdev)) {
10151 dev_info(&pdev->dev,
10152 "Cannot re-enable PCI device after reset.\n");
10153 result = PCI_ERS_RESULT_DISCONNECT;
10154 } else {
10155 pci_set_master(pdev);
10156 pci_restore_state(pdev);
10157 pci_save_state(pdev);
10158 pci_wake_from_d3(pdev, false);
10159
10160 reg = rd32(&pf->hw, I40E_GLGEN_RTRIG);
10161 if (reg == 0)
10162 result = PCI_ERS_RESULT_RECOVERED;
10163 else
10164 result = PCI_ERS_RESULT_DISCONNECT;
10165 }
10166
10167 err = pci_cleanup_aer_uncorrect_error_status(pdev);
10168 if (err) {
10169 dev_info(&pdev->dev,
10170 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
10171 err);
10172 /* non-fatal, continue */
10173 }
10174
10175 return result;
10176}
10177
10178/**
10179 * i40e_pci_error_resume - restart operations after PCI error recovery
10180 * @pdev: PCI device information struct
10181 *
10182 * Called to allow the driver to bring things back up after PCI error
10183 * and/or reset recovery has finished.
10184 **/
10185static void i40e_pci_error_resume(struct pci_dev *pdev)
10186{
10187 struct i40e_pf *pf = pci_get_drvdata(pdev);
10188
10189 dev_info(&pdev->dev, "%s\n", __func__);
9007bccd
SN		 10190 if (test_bit(__I40E_SUSPENDED, &pf->state))
10191 return;
10192
10193 rtnl_lock();
41c445ff 10194 i40e_handle_reset_warning(pf);
9007bccd
SN		 10195 rtnl_lock();
10196}
10197
10198/**
10199 * i40e_shutdown - PCI callback for shutting down
10200 * @pdev: PCI device information struct
10201 **/
10202static void i40e_shutdown(struct pci_dev *pdev)
10203{
10204 struct i40e_pf *pf = pci_get_drvdata(pdev);
8e2773ae 10205 struct i40e_hw *hw = &pf->hw;
9007bccd
SN		 10206
10207 set_bit(__I40E_SUSPENDED, &pf->state);
10208 set_bit(__I40E_DOWN, &pf->state);
10209 rtnl_lock();
10210 i40e_prep_for_reset(pf);
10211 rtnl_unlock();
10212
8e2773ae
SN		 10213 wr32(hw, I40E_PFPM_APM, (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0));
10214 wr32(hw, I40E_PFPM_WUFC, (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0));
10215
e147758d
SN		 10216 i40e_clear_interrupt_scheme(pf);
10217
9007bccd 10218 if (system_state == SYSTEM_POWER_OFF) {
8e2773ae 10219 pci_wake_from_d3(pdev, pf->wol_en);
9007bccd
SN		 10220 pci_set_power_state(pdev, PCI_D3hot);
10221 }
10222}
10223
10224#ifdef CONFIG_PM
10225/**
10226 * i40e_suspend - PCI callback for moving to D3
10227 * @pdev: PCI device information struct
10228 **/
10229static int i40e_suspend(struct pci_dev *pdev, pm_message_t state)
10230{
10231 struct i40e_pf *pf = pci_get_drvdata(pdev);
8e2773ae 10232 struct i40e_hw *hw = &pf->hw;
9007bccd
SN		 10233
10234 set_bit(__I40E_SUSPENDED, &pf->state);
10235 set_bit(__I40E_DOWN, &pf->state);
88086e5d
MW		 10236 del_timer_sync(&pf->service_timer);
10237 cancel_work_sync(&pf->service_task);
3932dbfe
MW		 10238 i40e_fdir_teardown(pf);
10239
9007bccd
SN		 10240 rtnl_lock();
10241 i40e_prep_for_reset(pf);
10242 rtnl_unlock();
10243
8e2773ae
SN		 10244 wr32(hw, I40E_PFPM_APM, (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0));
10245 wr32(hw, I40E_PFPM_WUFC, (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0));
10246
10247 pci_wake_from_d3(pdev, pf->wol_en);
9007bccd
SN		 10248 pci_set_power_state(pdev, PCI_D3hot);
10249
10250 return 0;
41c445ff
JB		 10251}
10252
9007bccd
SN		 10253/**
10254 * i40e_resume - PCI callback for waking up from D3
10255 * @pdev: PCI device information struct
10256 **/
10257static int i40e_resume(struct pci_dev *pdev)
10258{
10259 struct i40e_pf *pf = pci_get_drvdata(pdev);
10260 u32 err;
10261
10262 pci_set_power_state(pdev, PCI_D0);
10263 pci_restore_state(pdev);
10264 /* pci_restore_state() clears dev->state_saves, so
10265 * call pci_save_state() again to restore it.
10266 */
10267 pci_save_state(pdev);
10268
10269 err = pci_enable_device_mem(pdev);
10270 if (err) {
10271 dev_err(&pdev->dev,
10272 "%s: Cannot enable PCI device from suspend\n",
10273 __func__);
10274 return err;
10275 }
10276 pci_set_master(pdev);
10277
10278 /* no wakeup events while running */
10279 pci_wake_from_d3(pdev, false);
10280
10281 /* handling the reset will rebuild the device state */
10282 if (test_and_clear_bit(__I40E_SUSPENDED, &pf->state)) {
10283 clear_bit(__I40E_DOWN, &pf->state);
10284 rtnl_lock();
10285 i40e_reset_and_rebuild(pf, false);
10286 rtnl_unlock();
10287 }
10288
10289 return 0;
10290}
10291
10292#endif
41c445ff
JB		 10293static const struct pci_error_handlers i40e_err_handler = {
10294 .error_detected = i40e_pci_error_detected,
10295 .slot_reset = i40e_pci_error_slot_reset,
10296 .resume = i40e_pci_error_resume,
10297};
10298
10299static struct pci_driver i40e_driver = {
10300 .name = i40e_driver_name,
10301 .id_table = i40e_pci_tbl,
10302 .probe = i40e_probe,
10303 .remove = i40e_remove,
9007bccd
SN		 10304#ifdef CONFIG_PM
10305 .suspend = i40e_suspend,
10306 .resume = i40e_resume,
10307#endif
10308 .shutdown = i40e_shutdown,
41c445ff
JB		 10309 .err_handler = &i40e_err_handler,
10310 .sriov_configure = i40e_pci_sriov_configure,
10311};
10312
10313/**
10314 * i40e_init_module - Driver registration routine
10315 *
10316 * i40e_init_module is the first routine called when the driver is
10317 * loaded. All it does is register with the PCI subsystem.
10318 **/
10319static int __init i40e_init_module(void)
10320{
10321 pr_info("%s: %s - version %s\n", i40e_driver_name,
10322 i40e_driver_string, i40e_driver_version_str);
10323 pr_info("%s: %s\n", i40e_driver_name, i40e_copyright);
96664483 10324
41c445ff
JB		 10325 i40e_dbg_init();
10326 return pci_register_driver(&i40e_driver);
10327}
10328module_init(i40e_init_module);
10329
10330/**
10331 * i40e_exit_module - Driver exit cleanup routine
10332 *
10333 * i40e_exit_module is called just before the driver is removed
10334 * from memory.
10335 **/
10336static void __exit i40e_exit_module(void)
10337{
10338 pci_unregister_driver(&i40e_driver);
10339 i40e_dbg_exit();
10340}
10341module_exit(i40e_exit_module);
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