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i40iw: Code cleanup, remove check of PBLE pages
[linux-2.6-block.git] / drivers / infiniband / hw / i40iw / i40iw_utils.c
CommitLineData
4e9042e6
FL		 1/*******************************************************************************
2*
3* Copyright (c) 2015-2016 Intel Corporation. All rights reserved.
4*
5* This software is available to you under a choice of one of two
6* licenses. You may choose to be licensed under the terms of the GNU
7* General Public License (GPL) Version 2, available from the file
8* COPYING in the main directory of this source tree, or the
9* OpenFabrics.org BSD license below:
10*
11* Redistribution and use in source and binary forms, with or
12* without modification, are permitted provided that the following
13* conditions are met:
14*
15* - Redistributions of source code must retain the above
16* copyright notice, this list of conditions and the following
17* disclaimer.
18*
19* - Redistributions in binary form must reproduce the above
20* copyright notice, this list of conditions and the following
21* disclaimer in the documentation and/or other materials
22* provided with the distribution.
23*
24* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31* SOFTWARE.
32*
33*******************************************************************************/
34
35#include <linux/module.h>
36#include <linux/moduleparam.h>
37#include <linux/netdevice.h>
38#include <linux/etherdevice.h>
39#include <linux/ethtool.h>
40#include <linux/mii.h>
41#include <linux/if_vlan.h>
42#include <linux/crc32.h>
43#include <linux/in.h>
44#include <linux/ip.h>
45#include <linux/tcp.h>
46#include <linux/init.h>
47#include <linux/io.h>
48#include <asm/irq.h>
49#include <asm/byteorder.h>
50#include <net/netevent.h>
51#include <net/neighbour.h>
52#include "i40iw.h"
53
54/**
55 * i40iw_arp_table - manage arp table
56 * @iwdev: iwarp device
57 * @ip_addr: ip address for device
58 * @mac_addr: mac address ptr
59 * @action: modify, delete or add
60 */
61int i40iw_arp_table(struct i40iw_device *iwdev,
20c61f7e 62 u32 *ip_addr,
4e9042e6
FL		 63 bool ipv4,
64 u8 *mac_addr,
65 u32 action)
66{
67 int arp_index;
68 int err;
69 u32 ip[4];
70
71 if (ipv4) {
72 memset(ip, 0, sizeof(ip));
73 ip[0] = *ip_addr;
74 } else {
75 memcpy(ip, ip_addr, sizeof(ip));
76 }
77
78 for (arp_index = 0; (u32)arp_index < iwdev->arp_table_size; arp_index++)
79 if (memcmp(iwdev->arp_table[arp_index].ip_addr, ip, sizeof(ip)) == 0)
80 break;
81 switch (action) {
82 case I40IW_ARP_ADD:
83 if (arp_index != iwdev->arp_table_size)
84 return -1;
85
86 arp_index = 0;
87 err = i40iw_alloc_resource(iwdev, iwdev->allocated_arps,
88 iwdev->arp_table_size,
89 (u32 *)&arp_index,
90 &iwdev->next_arp_index);
91
92 if (err)
93 return err;
94
95 memcpy(iwdev->arp_table[arp_index].ip_addr, ip, sizeof(ip));
96 ether_addr_copy(iwdev->arp_table[arp_index].mac_addr, mac_addr);
97 break;
98 case I40IW_ARP_RESOLVE:
99 if (arp_index == iwdev->arp_table_size)
100 return -1;
101 break;
102 case I40IW_ARP_DELETE:
103 if (arp_index == iwdev->arp_table_size)
104 return -1;
105 memset(iwdev->arp_table[arp_index].ip_addr, 0,
106 sizeof(iwdev->arp_table[arp_index].ip_addr));
107 eth_zero_addr(iwdev->arp_table[arp_index].mac_addr);
108 i40iw_free_resource(iwdev, iwdev->allocated_arps, arp_index);
109 break;
110 default:
111 return -1;
112 }
113 return arp_index;
114}
115
116/**
117 * i40iw_wr32 - write 32 bits to hw register
118 * @hw: hardware information including registers
119 * @reg: register offset
120 * @value: vvalue to write to register
121 */
122inline void i40iw_wr32(struct i40iw_hw *hw, u32 reg, u32 value)
123{
124 writel(value, hw->hw_addr + reg);
125}
126
127/**
128 * i40iw_rd32 - read a 32 bit hw register
129 * @hw: hardware information including registers
130 * @reg: register offset
131 *
132 * Return value of register content
133 */
134inline u32 i40iw_rd32(struct i40iw_hw *hw, u32 reg)
135{
136 return readl(hw->hw_addr + reg);
137}
138
139/**
140 * i40iw_inetaddr_event - system notifier for netdev events
141 * @notfier: not used
142 * @event: event for notifier
143 * @ptr: if address
144 */
145int i40iw_inetaddr_event(struct notifier_block *notifier,
146 unsigned long event,
147 void *ptr)
148{
149 struct in_ifaddr *ifa = ptr;
150 struct net_device *event_netdev = ifa->ifa_dev->dev;
151 struct net_device *netdev;
152 struct net_device *upper_dev;
153 struct i40iw_device *iwdev;
154 struct i40iw_handler *hdl;
20c61f7e 155 u32 local_ipaddr;
e5e74b61 156 u32 action = I40IW_ARP_ADD;
4e9042e6
FL		 157
158 hdl = i40iw_find_netdev(event_netdev);
159 if (!hdl)
160 return NOTIFY_DONE;
161
162 iwdev = &hdl->device;
163 netdev = iwdev->ldev->netdev;
164 upper_dev = netdev_master_upper_dev_get(netdev);
165 if (netdev != event_netdev)
166 return NOTIFY_DONE;
167
e5e74b61
MI		 168 if (upper_dev)
169 local_ipaddr = ntohl(
170 ((struct in_device *)upper_dev->ip_ptr)->ifa_list->ifa_address);
171 else
172 local_ipaddr = ntohl(ifa->ifa_address);
4e9042e6
FL		 173 switch (event) {
174 case NETDEV_DOWN:
e5e74b61
MI		 175 action = I40IW_ARP_DELETE;
176 /* Fall through */
4e9042e6 177 case NETDEV_UP:
e5e74b61 178 /* Fall through */
4e9042e6 179 case NETDEV_CHANGEADDR:
4e9042e6
FL		 180 i40iw_manage_arp_cache(iwdev,
181 netdev->dev_addr,
182 &local_ipaddr,
183 true,
e5e74b61
MI		 184 action);
185 i40iw_if_notify(iwdev, netdev, &local_ipaddr, true,
186 (action == I40IW_ARP_ADD) ? true : false);
4e9042e6
FL		 187 break;
188 default:
189 break;
190 }
191 return NOTIFY_DONE;
192}
193
194/**
195 * i40iw_inet6addr_event - system notifier for ipv6 netdev events
196 * @notfier: not used
197 * @event: event for notifier
198 * @ptr: if address
199 */
200int i40iw_inet6addr_event(struct notifier_block *notifier,
201 unsigned long event,
202 void *ptr)
203{
204 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
205 struct net_device *event_netdev = ifa->idev->dev;
206 struct net_device *netdev;
207 struct i40iw_device *iwdev;
208 struct i40iw_handler *hdl;
20c61f7e 209 u32 local_ipaddr6[4];
e5e74b61 210 u32 action = I40IW_ARP_ADD;
4e9042e6
FL		 211
212 hdl = i40iw_find_netdev(event_netdev);
213 if (!hdl)
214 return NOTIFY_DONE;
215
216 iwdev = &hdl->device;
217 netdev = iwdev->ldev->netdev;
218 if (netdev != event_netdev)
219 return NOTIFY_DONE;
220
e5e74b61 221 i40iw_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32);
4e9042e6
FL		 222 switch (event) {
223 case NETDEV_DOWN:
e5e74b61
MI		 224 action = I40IW_ARP_DELETE;
225 /* Fall through */
4e9042e6
FL		 226 case NETDEV_UP:
227 /* Fall through */
228 case NETDEV_CHANGEADDR:
4e9042e6
FL		 229 i40iw_manage_arp_cache(iwdev,
230 netdev->dev_addr,
231 local_ipaddr6,
232 false,
e5e74b61
MI		 233 action);
234 i40iw_if_notify(iwdev, netdev, local_ipaddr6, false,
235 (action == I40IW_ARP_ADD) ? true : false);
4e9042e6
FL		 236 break;
237 default:
238 break;
239 }
240 return NOTIFY_DONE;
241}
242
243/**
244 * i40iw_net_event - system notifier for net events
245 * @notfier: not used
246 * @event: event for notifier
247 * @ptr: neighbor
248 */
249int i40iw_net_event(struct notifier_block *notifier, unsigned long event, void *ptr)
250{
251 struct neighbour *neigh = ptr;
252 struct i40iw_device *iwdev;
253 struct i40iw_handler *iwhdl;
254 __be32 *p;
255 u32 local_ipaddr[4];
256
257 switch (event) {
258 case NETEVENT_NEIGH_UPDATE:
259 iwhdl = i40iw_find_netdev((struct net_device *)neigh->dev);
260 if (!iwhdl)
261 return NOTIFY_DONE;
262 iwdev = &iwhdl->device;
263 p = (__be32 *)neigh->primary_key;
264 i40iw_copy_ip_ntohl(local_ipaddr, p);
265 if (neigh->nud_state & NUD_VALID) {
266 i40iw_manage_arp_cache(iwdev,
267 neigh->ha,
268 local_ipaddr,
269 false,
270 I40IW_ARP_ADD);
271
272 } else {
273 i40iw_manage_arp_cache(iwdev,
274 neigh->ha,
275 local_ipaddr,
276 false,
277 I40IW_ARP_DELETE);
278 }
279 break;
280 default:
281 break;
282 }
283 return NOTIFY_DONE;
284}
285
286/**
287 * i40iw_get_cqp_request - get cqp struct
288 * @cqp: device cqp ptr
289 * @wait: cqp to be used in wait mode
290 */
291struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait)
292{
293 struct i40iw_cqp_request *cqp_request = NULL;
294 unsigned long flags;
295
296 spin_lock_irqsave(&cqp->req_lock, flags);
297 if (!list_empty(&cqp->cqp_avail_reqs)) {
298 cqp_request = list_entry(cqp->cqp_avail_reqs.next,
299 struct i40iw_cqp_request, list);
300 list_del_init(&cqp_request->list);
301 }
302 spin_unlock_irqrestore(&cqp->req_lock, flags);
303 if (!cqp_request) {
304 cqp_request = kzalloc(sizeof(*cqp_request), GFP_ATOMIC);
305 if (cqp_request) {
306 cqp_request->dynamic = true;
307 INIT_LIST_HEAD(&cqp_request->list);
308 init_waitqueue_head(&cqp_request->waitq);
309 }
310 }
311 if (!cqp_request) {
312 i40iw_pr_err("CQP Request Fail: No Memory");
313 return NULL;
314 }
315
316 if (wait) {
317 atomic_set(&cqp_request->refcount, 2);
318 cqp_request->waiting = true;
319 } else {
320 atomic_set(&cqp_request->refcount, 1);
321 }
322 return cqp_request;
323}
324
325/**
326 * i40iw_free_cqp_request - free cqp request
327 * @cqp: cqp ptr
328 * @cqp_request: to be put back in cqp list
329 */
330void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request)
331{
332 unsigned long flags;
333
334 if (cqp_request->dynamic) {
335 kfree(cqp_request);
336 } else {
337 cqp_request->request_done = false;
338 cqp_request->callback_fcn = NULL;
339 cqp_request->waiting = false;
340
341 spin_lock_irqsave(&cqp->req_lock, flags);
342 list_add_tail(&cqp_request->list, &cqp->cqp_avail_reqs);
343 spin_unlock_irqrestore(&cqp->req_lock, flags);
344 }
345}
346
347/**
348 * i40iw_put_cqp_request - dec ref count and free if 0
349 * @cqp: cqp ptr
350 * @cqp_request: to be put back in cqp list
351 */
352void i40iw_put_cqp_request(struct i40iw_cqp *cqp,
353 struct i40iw_cqp_request *cqp_request)
354{
355 if (atomic_dec_and_test(&cqp_request->refcount))
356 i40iw_free_cqp_request(cqp, cqp_request);
357}
358
359/**
360 * i40iw_free_qp - callback after destroy cqp completes
361 * @cqp_request: cqp request for destroy qp
362 * @num: not used
363 */
364static void i40iw_free_qp(struct i40iw_cqp_request *cqp_request, u32 num)
365{
366 struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)cqp_request->param;
367 struct i40iw_qp *iwqp = (struct i40iw_qp *)qp->back_qp;
368 struct i40iw_device *iwdev;
369 u32 qp_num = iwqp->ibqp.qp_num;
370
371 iwdev = iwqp->iwdev;
372
373 i40iw_rem_pdusecount(iwqp->iwpd, iwdev);
374 i40iw_free_qp_resources(iwdev, iwqp, qp_num);
d5965934 375 i40iw_rem_devusecount(iwdev);
4e9042e6
FL		 376}
377
378/**
379 * i40iw_wait_event - wait for completion
380 * @iwdev: iwarp device
381 * @cqp_request: cqp request to wait
382 */
383static int i40iw_wait_event(struct i40iw_device *iwdev,
384 struct i40iw_cqp_request *cqp_request)
385{
386 struct cqp_commands_info *info = &cqp_request->info;
387 struct i40iw_cqp *iwcqp = &iwdev->cqp;
388 bool cqp_error = false;
389 int err_code = 0;
390 int timeout_ret = 0;
391
392 timeout_ret = wait_event_timeout(cqp_request->waitq,
393 cqp_request->request_done,
394 I40IW_EVENT_TIMEOUT);
395 if (!timeout_ret) {
396 i40iw_pr_err("error cqp command 0x%x timed out ret = %d\n",
397 info->cqp_cmd, timeout_ret);
398 err_code = -ETIME;
399 i40iw_request_reset(iwdev);
400 goto done;
401 }
402 cqp_error = cqp_request->compl_info.error;
403 if (cqp_error) {
404 i40iw_pr_err("error cqp command 0x%x completion maj = 0x%x min=0x%x\n",
405 info->cqp_cmd, cqp_request->compl_info.maj_err_code,
406 cqp_request->compl_info.min_err_code);
407 err_code = -EPROTO;
408 goto done;
409 }
410done:
411 i40iw_put_cqp_request(iwcqp, cqp_request);
412 return err_code;
413}
414
415/**
416 * i40iw_handle_cqp_op - process cqp command
417 * @iwdev: iwarp device
418 * @cqp_request: cqp request to process
419 */
420enum i40iw_status_code i40iw_handle_cqp_op(struct i40iw_device *iwdev,
421 struct i40iw_cqp_request
422 *cqp_request)
423{
424 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
425 enum i40iw_status_code status;
426 struct cqp_commands_info *info = &cqp_request->info;
427 int err_code = 0;
428
429 status = i40iw_process_cqp_cmd(dev, info);
430 if (status) {
431 i40iw_pr_err("error cqp command 0x%x failed\n", info->cqp_cmd);
432 i40iw_free_cqp_request(&iwdev->cqp, cqp_request);
433 return status;
434 }
435 if (cqp_request->waiting)
436 err_code = i40iw_wait_event(iwdev, cqp_request);
437 if (err_code)
438 status = I40IW_ERR_CQP_COMPL_ERROR;
439 return status;
440}
441
d5965934
MI		 442/**
443 * i40iw_add_devusecount - add dev refcount
444 * @iwdev: dev for refcount
445 */
446void i40iw_add_devusecount(struct i40iw_device *iwdev)
447{
448 atomic64_inc(&iwdev->use_count);
449}
450
451/**
452 * i40iw_rem_devusecount - decrement refcount for dev
453 * @iwdev: device
454 */
455void i40iw_rem_devusecount(struct i40iw_device *iwdev)
456{
457 if (!atomic64_dec_and_test(&iwdev->use_count))
458 return;
459 wake_up(&iwdev->close_wq);
460}
461
4e9042e6
FL		 462/**
463 * i40iw_add_pdusecount - add pd refcount
464 * @iwpd: pd for refcount
465 */
466void i40iw_add_pdusecount(struct i40iw_pd *iwpd)
467{
468 atomic_inc(&iwpd->usecount);
469}
470
471/**
472 * i40iw_rem_pdusecount - decrement refcount for pd and free if 0
473 * @iwpd: pd for refcount
474 * @iwdev: iwarp device
475 */
476void i40iw_rem_pdusecount(struct i40iw_pd *iwpd, struct i40iw_device *iwdev)
477{
478 if (!atomic_dec_and_test(&iwpd->usecount))
479 return;
480 i40iw_free_resource(iwdev, iwdev->allocated_pds, iwpd->sc_pd.pd_id);
481 kfree(iwpd);
482}
483
484/**
485 * i40iw_add_ref - add refcount for qp
486 * @ibqp: iqarp qp
487 */
488void i40iw_add_ref(struct ib_qp *ibqp)
489{
490 struct i40iw_qp *iwqp = (struct i40iw_qp *)ibqp;
491
492 atomic_inc(&iwqp->refcount);
493}
494
495/**
496 * i40iw_rem_ref - rem refcount for qp and free if 0
497 * @ibqp: iqarp qp
498 */
499void i40iw_rem_ref(struct ib_qp *ibqp)
500{
501 struct i40iw_qp *iwqp;
502 enum i40iw_status_code status;
503 struct i40iw_cqp_request *cqp_request;
504 struct cqp_commands_info *cqp_info;
505 struct i40iw_device *iwdev;
506 u32 qp_num;
996abf0a 507 unsigned long flags;
4e9042e6
FL		 508
509 iwqp = to_iwqp(ibqp);
996abf0a
IM		 510 iwdev = iwqp->iwdev;
511 spin_lock_irqsave(&iwdev->qptable_lock, flags);
512 if (!atomic_dec_and_test(&iwqp->refcount)) {
513 spin_unlock_irqrestore(&iwdev->qptable_lock, flags);
4e9042e6 514 return;
996abf0a 515 }
4e9042e6 516
4e9042e6
FL		 517 qp_num = iwqp->ibqp.qp_num;
518 iwdev->qp_table[qp_num] = NULL;
996abf0a 519 spin_unlock_irqrestore(&iwdev->qptable_lock, flags);
4e9042e6
FL		 520 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false);
521 if (!cqp_request)
522 return;
523
524 cqp_request->callback_fcn = i40iw_free_qp;
525 cqp_request->param = (void *)&iwqp->sc_qp;
526 cqp_info = &cqp_request->info;
527 cqp_info->cqp_cmd = OP_QP_DESTROY;
528 cqp_info->post_sq = 1;
529 cqp_info->in.u.qp_destroy.qp = &iwqp->sc_qp;
530 cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request;
531 cqp_info->in.u.qp_destroy.remove_hash_idx = true;
532 status = i40iw_handle_cqp_op(iwdev, cqp_request);
533 if (status)
534 i40iw_pr_err("CQP-OP Destroy QP fail");
535}
536
537/**
538 * i40iw_get_qp - get qp address
539 * @device: iwarp device
540 * @qpn: qp number
541 */
542struct ib_qp *i40iw_get_qp(struct ib_device *device, int qpn)
543{
544 struct i40iw_device *iwdev = to_iwdev(device);
545
546 if ((qpn < IW_FIRST_QPN) || (qpn >= iwdev->max_qp))
547 return NULL;
548
549 return &iwdev->qp_table[qpn]->ibqp;
550}
551
552/**
553 * i40iw_debug_buf - print debug msg and buffer is mask set
554 * @dev: hardware control device structure
555 * @mask: mask to compare if to print debug buffer
556 * @buf: points buffer addr
557 * @size: saize of buffer to print
558 */
559void i40iw_debug_buf(struct i40iw_sc_dev *dev,
560 enum i40iw_debug_flag mask,
561 char *desc,
562 u64 *buf,
563 u32 size)
564{
565 u32 i;
566
567 if (!(dev->debug_mask & mask))
568 return;
569 i40iw_debug(dev, mask, "%s\n", desc);
570 i40iw_debug(dev, mask, "starting address virt=%p phy=%llxh\n", buf,
571 (unsigned long long)virt_to_phys(buf));
572
573 for (i = 0; i < size; i += 8)
574 i40iw_debug(dev, mask, "index %03d val: %016llx\n", i, buf[i / 8]);
575}
576
577/**
578 * i40iw_get_hw_addr - return hw addr
579 * @par: points to shared dev
580 */
581u8 __iomem *i40iw_get_hw_addr(void *par)
582{
583 struct i40iw_sc_dev *dev = (struct i40iw_sc_dev *)par;
584
585 return dev->hw->hw_addr;
586}
587
588/**
589 * i40iw_remove_head - return head entry and remove from list
590 * @list: list for entry
591 */
592void *i40iw_remove_head(struct list_head *list)
593{
594 struct list_head *entry;
595
596 if (list_empty(list))
597 return NULL;
598
599 entry = (void *)list->next;
600 list_del(entry);
601 return (void *)entry;
602}
603
604/**
605 * i40iw_allocate_dma_mem - Memory alloc helper fn
606 * @hw: pointer to the HW structure
607 * @mem: ptr to mem struct to fill out
608 * @size: size of memory requested
609 * @alignment: what to align the allocation to
610 */
611enum i40iw_status_code i40iw_allocate_dma_mem(struct i40iw_hw *hw,
612 struct i40iw_dma_mem *mem,
613 u64 size,
614 u32 alignment)
615{
616 struct pci_dev *pcidev = (struct pci_dev *)hw->dev_context;
617
618 if (!mem)
619 return I40IW_ERR_PARAM;
620 mem->size = ALIGN(size, alignment);
621 mem->va = dma_zalloc_coherent(&pcidev->dev, mem->size,
622 (dma_addr_t *)&mem->pa, GFP_KERNEL);
623 if (!mem->va)
624 return I40IW_ERR_NO_MEMORY;
625 return 0;
626}
627
628/**
629 * i40iw_free_dma_mem - Memory free helper fn
630 * @hw: pointer to the HW structure
631 * @mem: ptr to mem struct to free
632 */
633void i40iw_free_dma_mem(struct i40iw_hw *hw, struct i40iw_dma_mem *mem)
634{
635 struct pci_dev *pcidev = (struct pci_dev *)hw->dev_context;
636
637 if (!mem || !mem->va)
638 return;
639
640 dma_free_coherent(&pcidev->dev, mem->size,
641 mem->va, (dma_addr_t)mem->pa);
642 mem->va = NULL;
643}
644
645/**
646 * i40iw_allocate_virt_mem - virtual memory alloc helper fn
647 * @hw: pointer to the HW structure
648 * @mem: ptr to mem struct to fill out
649 * @size: size of memory requested
650 */
651enum i40iw_status_code i40iw_allocate_virt_mem(struct i40iw_hw *hw,
652 struct i40iw_virt_mem *mem,
653 u32 size)
654{
655 if (!mem)
656 return I40IW_ERR_PARAM;
657
658 mem->size = size;
659 mem->va = kzalloc(size, GFP_KERNEL);
660
661 if (mem->va)
662 return 0;
663 else
664 return I40IW_ERR_NO_MEMORY;
665}
666
667/**
668 * i40iw_free_virt_mem - virtual memory free helper fn
669 * @hw: pointer to the HW structure
670 * @mem: ptr to mem struct to free
671 */
672enum i40iw_status_code i40iw_free_virt_mem(struct i40iw_hw *hw,
673 struct i40iw_virt_mem *mem)
674{
675 if (!mem)
676 return I40IW_ERR_PARAM;
7eaf8313
MI		 677 /*
678 * mem->va points to the parent of mem, so both mem and mem->va
679 * can not be touched once mem->va is freed
680 */
4e9042e6 681 kfree(mem->va);
4e9042e6
FL		 682 return 0;
683}
684
685/**
686 * i40iw_cqp_sds_cmd - create cqp command for sd
687 * @dev: hardware control device structure
688 * @sd_info: information for sd cqp
689 *
690 */
691enum i40iw_status_code i40iw_cqp_sds_cmd(struct i40iw_sc_dev *dev,
692 struct i40iw_update_sds_info *sdinfo)
693{
694 enum i40iw_status_code status;
695 struct i40iw_cqp_request *cqp_request;
696 struct cqp_commands_info *cqp_info;
697 struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
698
699 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
700 if (!cqp_request)
701 return I40IW_ERR_NO_MEMORY;
702 cqp_info = &cqp_request->info;
703 memcpy(&cqp_info->in.u.update_pe_sds.info, sdinfo,
704 sizeof(cqp_info->in.u.update_pe_sds.info));
705 cqp_info->cqp_cmd = OP_UPDATE_PE_SDS;
706 cqp_info->post_sq = 1;
707 cqp_info->in.u.update_pe_sds.dev = dev;
708 cqp_info->in.u.update_pe_sds.scratch = (uintptr_t)cqp_request;
709 status = i40iw_handle_cqp_op(iwdev, cqp_request);
710 if (status)
711 i40iw_pr_err("CQP-OP Update SD's fail");
712 return status;
713}
714
0fc2dc58
HO		 715/**
716 * i40iw_qp_suspend_resume - cqp command for suspend/resume
717 * @dev: hardware control device structure
718 * @qp: hardware control qp
719 * @suspend: flag if suspend or resume
720 */
721void i40iw_qp_suspend_resume(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp, bool suspend)
722{
723 struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
724 struct i40iw_cqp_request *cqp_request;
725 struct i40iw_sc_cqp *cqp = dev->cqp;
726 struct cqp_commands_info *cqp_info;
727 enum i40iw_status_code status;
728
729 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false);
730 if (!cqp_request)
731 return;
732
733 cqp_info = &cqp_request->info;
734 cqp_info->cqp_cmd = (suspend) ? OP_SUSPEND : OP_RESUME;
735 cqp_info->in.u.suspend_resume.cqp = cqp;
736 cqp_info->in.u.suspend_resume.qp = qp;
737 cqp_info->in.u.suspend_resume.scratch = (uintptr_t)cqp_request;
738 status = i40iw_handle_cqp_op(iwdev, cqp_request);
739 if (status)
740 i40iw_pr_err("CQP-OP QP Suspend/Resume fail");
741}
742
743/**
744 * i40iw_qp_mss_modify - modify mss for qp
745 * @dev: hardware control device structure
746 * @qp: hardware control qp
747 */
748void i40iw_qp_mss_modify(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp)
749{
750 struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
751 struct i40iw_qp *iwqp = (struct i40iw_qp *)qp->back_qp;
752 struct i40iw_modify_qp_info info;
753
754 memset(&info, 0, sizeof(info));
755 info.mss_change = true;
756 info.new_mss = dev->mss;
757 i40iw_hw_modify_qp(iwdev, iwqp, &info, false);
758}
759
4e9042e6
FL		 760/**
761 * i40iw_term_modify_qp - modify qp for term message
762 * @qp: hardware control qp
763 * @next_state: qp's next state
764 * @term: terminate code
765 * @term_len: length
766 */
767void i40iw_term_modify_qp(struct i40iw_sc_qp *qp, u8 next_state, u8 term, u8 term_len)
768{
769 struct i40iw_qp *iwqp;
770
771 iwqp = (struct i40iw_qp *)qp->back_qp;
772 i40iw_next_iw_state(iwqp, next_state, 0, term, term_len);
773};
774
775/**
776 * i40iw_terminate_done - after terminate is completed
777 * @qp: hardware control qp
778 * @timeout_occurred: indicates if terminate timer expired
779 */
780void i40iw_terminate_done(struct i40iw_sc_qp *qp, int timeout_occurred)
781{
782 struct i40iw_qp *iwqp;
783 u32 next_iwarp_state = I40IW_QP_STATE_ERROR;
784 u8 hte = 0;
785 bool first_time;
786 unsigned long flags;
787
788 iwqp = (struct i40iw_qp *)qp->back_qp;
789 spin_lock_irqsave(&iwqp->lock, flags);
790 if (iwqp->hte_added) {
791 iwqp->hte_added = 0;
792 hte = 1;
793 }
794 first_time = !(qp->term_flags & I40IW_TERM_DONE);
795 qp->term_flags |= I40IW_TERM_DONE;
796 spin_unlock_irqrestore(&iwqp->lock, flags);
797 if (first_time) {
798 if (!timeout_occurred)
799 i40iw_terminate_del_timer(qp);
800 else
801 next_iwarp_state = I40IW_QP_STATE_CLOSING;
802
803 i40iw_next_iw_state(iwqp, next_iwarp_state, hte, 0, 0);
804 i40iw_cm_disconn(iwqp);
805 }
806}
807
808/**
809 * i40iw_terminate_imeout - timeout happened
810 * @context: points to iwarp qp
811 */
812static void i40iw_terminate_timeout(unsigned long context)
813{
814 struct i40iw_qp *iwqp = (struct i40iw_qp *)context;
815 struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)&iwqp->sc_qp;
816
817 i40iw_terminate_done(qp, 1);
818}
819
820/**
821 * i40iw_terminate_start_timer - start terminate timeout
822 * @qp: hardware control qp
823 */
824void i40iw_terminate_start_timer(struct i40iw_sc_qp *qp)
825{
826 struct i40iw_qp *iwqp;
827
828 iwqp = (struct i40iw_qp *)qp->back_qp;
829 init_timer(&iwqp->terminate_timer);
830 iwqp->terminate_timer.function = i40iw_terminate_timeout;
831 iwqp->terminate_timer.expires = jiffies + HZ;
832 iwqp->terminate_timer.data = (unsigned long)iwqp;
833 add_timer(&iwqp->terminate_timer);
834}
835
836/**
837 * i40iw_terminate_del_timer - delete terminate timeout
838 * @qp: hardware control qp
839 */
840void i40iw_terminate_del_timer(struct i40iw_sc_qp *qp)
841{
842 struct i40iw_qp *iwqp;
843
844 iwqp = (struct i40iw_qp *)qp->back_qp;
845 del_timer(&iwqp->terminate_timer);
846}
847
848/**
849 * i40iw_cqp_generic_worker - generic worker for cqp
850 * @work: work pointer
851 */
852static void i40iw_cqp_generic_worker(struct work_struct *work)
853{
854 struct i40iw_virtchnl_work_info *work_info =
855 &((struct virtchnl_work *)work)->work_info;
856
857 if (work_info->worker_vf_dev)
858 work_info->callback_fcn(work_info->worker_vf_dev);
859}
860
861/**
862 * i40iw_cqp_spawn_worker - spawn worket thread
863 * @iwdev: device struct pointer
864 * @work_info: work request info
865 * @iw_vf_idx: virtual function index
866 */
867void i40iw_cqp_spawn_worker(struct i40iw_sc_dev *dev,
868 struct i40iw_virtchnl_work_info *work_info,
869 u32 iw_vf_idx)
870{
871 struct virtchnl_work *work;
872 struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
873
874 work = &iwdev->virtchnl_w[iw_vf_idx];
875 memcpy(&work->work_info, work_info, sizeof(*work_info));
876 INIT_WORK(&work->work, i40iw_cqp_generic_worker);
877 queue_work(iwdev->virtchnl_wq, &work->work);
878}
879
880/**
881 * i40iw_cqp_manage_hmc_fcn_worker -
882 * @work: work pointer for hmc info
883 */
884static void i40iw_cqp_manage_hmc_fcn_worker(struct work_struct *work)
885{
886 struct i40iw_cqp_request *cqp_request =
887 ((struct virtchnl_work *)work)->cqp_request;
888 struct i40iw_ccq_cqe_info ccq_cqe_info;
889 struct i40iw_hmc_fcn_info *hmcfcninfo =
890 &cqp_request->info.in.u.manage_hmc_pm.info;
891 struct i40iw_device *iwdev =
892 (struct i40iw_device *)cqp_request->info.in.u.manage_hmc_pm.dev->back_dev;
893
894 ccq_cqe_info.cqp = NULL;
895 ccq_cqe_info.maj_err_code = cqp_request->compl_info.maj_err_code;
896 ccq_cqe_info.min_err_code = cqp_request->compl_info.min_err_code;
897 ccq_cqe_info.op_code = cqp_request->compl_info.op_code;
898 ccq_cqe_info.op_ret_val = cqp_request->compl_info.op_ret_val;
899 ccq_cqe_info.scratch = 0;
900 ccq_cqe_info.error = cqp_request->compl_info.error;
901 hmcfcninfo->callback_fcn(cqp_request->info.in.u.manage_hmc_pm.dev,
902 hmcfcninfo->cqp_callback_param, &ccq_cqe_info);
903 i40iw_put_cqp_request(&iwdev->cqp, cqp_request);
904}
905
906/**
907 * i40iw_cqp_manage_hmc_fcn_callback - called function after cqp completion
908 * @cqp_request: cqp request info struct for hmc fun
909 * @unused: unused param of callback
910 */
911static void i40iw_cqp_manage_hmc_fcn_callback(struct i40iw_cqp_request *cqp_request,
912 u32 unused)
913{
914 struct virtchnl_work *work;
915 struct i40iw_hmc_fcn_info *hmcfcninfo =
916 &cqp_request->info.in.u.manage_hmc_pm.info;
917 struct i40iw_device *iwdev =
918 (struct i40iw_device *)cqp_request->info.in.u.manage_hmc_pm.dev->
919 back_dev;
920
921 if (hmcfcninfo && hmcfcninfo->callback_fcn) {
922 i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s1\n", __func__);
923 atomic_inc(&cqp_request->refcount);
924 work = &iwdev->virtchnl_w[hmcfcninfo->iw_vf_idx];
925 work->cqp_request = cqp_request;
926 INIT_WORK(&work->work, i40iw_cqp_manage_hmc_fcn_worker);
927 queue_work(iwdev->virtchnl_wq, &work->work);
928 i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s2\n", __func__);
929 } else {
930 i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s: Something wrong\n", __func__);
931 }
932}
933
934/**
935 * i40iw_cqp_manage_hmc_fcn_cmd - issue cqp command to manage hmc
936 * @dev: hardware control device structure
937 * @hmcfcninfo: info for hmc
938 */
939enum i40iw_status_code i40iw_cqp_manage_hmc_fcn_cmd(struct i40iw_sc_dev *dev,
940 struct i40iw_hmc_fcn_info *hmcfcninfo)
941{
942 enum i40iw_status_code status;
943 struct i40iw_cqp_request *cqp_request;
944 struct cqp_commands_info *cqp_info;
945 struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
946
947 i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s\n", __func__);
948 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false);
949 if (!cqp_request)
950 return I40IW_ERR_NO_MEMORY;
951 cqp_info = &cqp_request->info;
952 cqp_request->callback_fcn = i40iw_cqp_manage_hmc_fcn_callback;
953 cqp_request->param = hmcfcninfo;
954 memcpy(&cqp_info->in.u.manage_hmc_pm.info, hmcfcninfo,
955 sizeof(*hmcfcninfo));
956 cqp_info->in.u.manage_hmc_pm.dev = dev;
957 cqp_info->cqp_cmd = OP_MANAGE_HMC_PM_FUNC_TABLE;
958 cqp_info->post_sq = 1;
959 cqp_info->in.u.manage_hmc_pm.scratch = (uintptr_t)cqp_request;
960 status = i40iw_handle_cqp_op(iwdev, cqp_request);
961 if (status)
962 i40iw_pr_err("CQP-OP Manage HMC fail");
963 return status;
964}
965
966/**
967 * i40iw_cqp_query_fpm_values_cmd - send cqp command for fpm
968 * @iwdev: function device struct
969 * @values_mem: buffer for fpm
970 * @hmc_fn_id: function id for fpm
971 */
972enum i40iw_status_code i40iw_cqp_query_fpm_values_cmd(struct i40iw_sc_dev *dev,
973 struct i40iw_dma_mem *values_mem,
974 u8 hmc_fn_id)
975{
976 enum i40iw_status_code status;
977 struct i40iw_cqp_request *cqp_request;
978 struct cqp_commands_info *cqp_info;
979 struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
980
981 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
982 if (!cqp_request)
983 return I40IW_ERR_NO_MEMORY;
984 cqp_info = &cqp_request->info;
985 cqp_request->param = NULL;
986 cqp_info->in.u.query_fpm_values.cqp = dev->cqp;
987 cqp_info->in.u.query_fpm_values.fpm_values_pa = values_mem->pa;
988 cqp_info->in.u.query_fpm_values.fpm_values_va = values_mem->va;
989 cqp_info->in.u.query_fpm_values.hmc_fn_id = hmc_fn_id;
990 cqp_info->cqp_cmd = OP_QUERY_FPM_VALUES;
991 cqp_info->post_sq = 1;
992 cqp_info->in.u.query_fpm_values.scratch = (uintptr_t)cqp_request;
993 status = i40iw_handle_cqp_op(iwdev, cqp_request);
994 if (status)
995 i40iw_pr_err("CQP-OP Query FPM fail");
996 return status;
997}
998
999/**
1000 * i40iw_cqp_commit_fpm_values_cmd - commit fpm values in hw
1001 * @dev: hardware control device structure
1002 * @values_mem: buffer with fpm values
1003 * @hmc_fn_id: function id for fpm
1004 */
1005enum i40iw_status_code i40iw_cqp_commit_fpm_values_cmd(struct i40iw_sc_dev *dev,
1006 struct i40iw_dma_mem *values_mem,
1007 u8 hmc_fn_id)
1008{
1009 enum i40iw_status_code status;
1010 struct i40iw_cqp_request *cqp_request;
1011 struct cqp_commands_info *cqp_info;
1012 struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
1013
1014 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
1015 if (!cqp_request)
1016 return I40IW_ERR_NO_MEMORY;
1017 cqp_info = &cqp_request->info;
1018 cqp_request->param = NULL;
1019 cqp_info->in.u.commit_fpm_values.cqp = dev->cqp;
1020 cqp_info->in.u.commit_fpm_values.fpm_values_pa = values_mem->pa;
1021 cqp_info->in.u.commit_fpm_values.fpm_values_va = values_mem->va;
1022 cqp_info->in.u.commit_fpm_values.hmc_fn_id = hmc_fn_id;
1023 cqp_info->cqp_cmd = OP_COMMIT_FPM_VALUES;
1024 cqp_info->post_sq = 1;
1025 cqp_info->in.u.commit_fpm_values.scratch = (uintptr_t)cqp_request;
1026 status = i40iw_handle_cqp_op(iwdev, cqp_request);
1027 if (status)
1028 i40iw_pr_err("CQP-OP Commit FPM fail");
1029 return status;
1030}
1031
1032/**
1033 * i40iw_vf_wait_vchnl_resp - wait for channel msg
1034 * @iwdev: function's device struct
1035 */
1036enum i40iw_status_code i40iw_vf_wait_vchnl_resp(struct i40iw_sc_dev *dev)
1037{
1038 struct i40iw_device *iwdev = dev->back_dev;
4e9042e6
FL		 1039 int timeout_ret;
1040
1041 i40iw_debug(dev, I40IW_DEBUG_VIRT, "%s[%u] dev %p, iwdev %p\n",
1042 __func__, __LINE__, dev, iwdev);
f69c3331
IM		 1043
1044 atomic_set(&iwdev->vchnl_msgs, 2);
4e9042e6
FL		 1045 timeout_ret = wait_event_timeout(iwdev->vchnl_waitq,
1046 (atomic_read(&iwdev->vchnl_msgs) == 1),
1047 I40IW_VCHNL_EVENT_TIMEOUT);
1048 atomic_dec(&iwdev->vchnl_msgs);
1049 if (!timeout_ret) {
1050 i40iw_pr_err("virt channel completion timeout = 0x%x\n", timeout_ret);
f69c3331
IM		 1051 atomic_set(&iwdev->vchnl_msgs, 0);
1052 dev->vchnl_up = false;
1053 return I40IW_ERR_TIMEOUT;
4e9042e6 1054 }
f69c3331
IM		 1055 wake_up(&dev->vf_reqs);
1056 return 0;
4e9042e6
FL		 1057}
1058
1059/**
1060 * i40iw_ieq_mpa_crc_ae - generate AE for crc error
1061 * @dev: hardware control device structure
1062 * @qp: hardware control qp
1063 */
1064void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp)
1065{
1066 struct i40iw_qp_flush_info info;
1067 struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
1068
1069 i40iw_debug(dev, I40IW_DEBUG_AEQ, "%s entered\n", __func__);
1070 memset(&info, 0, sizeof(info));
1071 info.ae_code = I40IW_AE_LLP_RECEIVED_MPA_CRC_ERROR;
1072 info.generate_ae = true;
1073 info.ae_source = 0x3;
1074 (void)i40iw_hw_flush_wqes(iwdev, qp, &info, false);
1075}
1076
1077/**
1078 * i40iw_init_hash_desc - initialize hash for crc calculation
1079 * @desc: cryption type
1080 */
34abf9ed 1081enum i40iw_status_code i40iw_init_hash_desc(struct shash_desc **desc)
4e9042e6 1082{
34abf9ed
TN		 1083 struct crypto_shash *tfm;
1084 struct shash_desc *tdesc;
1085
1086 tfm = crypto_alloc_shash("crc32c", 0, 0);
1087 if (IS_ERR(tfm))
1088 return I40IW_ERR_MPA_CRC;
1089
1090 tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm),
1091 GFP_KERNEL);
1092 if (!tdesc) {
1093 crypto_free_shash(tfm);
4e9042e6 1094 return I40IW_ERR_MPA_CRC;
34abf9ed
TN		 1095 }
1096 tdesc->tfm = tfm;
1097 *desc = tdesc;
1098
4e9042e6
FL		 1099 return 0;
1100}
1101
1102/**
1103 * i40iw_free_hash_desc - free hash desc
1104 * @desc: to be freed
1105 */
34abf9ed 1106void i40iw_free_hash_desc(struct shash_desc *desc)
4e9042e6 1107{
34abf9ed
TN		 1108 if (desc) {
1109 crypto_free_shash(desc->tfm);
1110 kfree(desc);
1111 }
4e9042e6
FL		 1112}
1113
1114/**
1115 * i40iw_alloc_query_fpm_buf - allocate buffer for fpm
1116 * @dev: hardware control device structure
1117 * @mem: buffer ptr for fpm to be allocated
1118 * @return: memory allocation status
1119 */
1120enum i40iw_status_code i40iw_alloc_query_fpm_buf(struct i40iw_sc_dev *dev,
1121 struct i40iw_dma_mem *mem)
1122{
1123 enum i40iw_status_code status;
1124 struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
1125
1126 status = i40iw_obj_aligned_mem(iwdev, mem, I40IW_QUERY_FPM_BUF_SIZE,
1127 I40IW_FPM_QUERY_BUF_ALIGNMENT_MASK);
1128 return status;
1129}
1130
1131/**
1132 * i40iw_ieq_check_mpacrc - check if mpa crc is OK
1133 * @desc: desc for hash
1134 * @addr: address of buffer for crc
1135 * @length: length of buffer
1136 * @value: value to be compared
1137 */
34abf9ed 1138enum i40iw_status_code i40iw_ieq_check_mpacrc(struct shash_desc *desc,
4e9042e6
FL		 1139 void *addr,
1140 u32 length,
1141 u32 value)
1142{
4e9042e6
FL		 1143 u32 crc = 0;
1144 int ret;
1145 enum i40iw_status_code ret_code = 0;
1146
34abf9ed
TN		 1147 crypto_shash_init(desc);
1148 ret = crypto_shash_update(desc, addr, length);
4e9042e6 1149 if (!ret)
34abf9ed 1150 crypto_shash_final(desc, (u8 *)&crc);
4e9042e6
FL		 1151 if (crc != value) {
1152 i40iw_pr_err("mpa crc check fail\n");
1153 ret_code = I40IW_ERR_MPA_CRC;
1154 }
1155 return ret_code;
1156}
1157
1158/**
1159 * i40iw_ieq_get_qp - get qp based on quad in puda buffer
1160 * @dev: hardware control device structure
1161 * @buf: receive puda buffer on exception q
1162 */
1163struct i40iw_sc_qp *i40iw_ieq_get_qp(struct i40iw_sc_dev *dev,
1164 struct i40iw_puda_buf *buf)
1165{
1166 struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
1167 struct i40iw_qp *iwqp;
1168 struct i40iw_cm_node *cm_node;
1169 u32 loc_addr[4], rem_addr[4];
1170 u16 loc_port, rem_port;
1171 struct ipv6hdr *ip6h;
1172 struct iphdr *iph = (struct iphdr *)buf->iph;
1173 struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
1174
1175 if (iph->version == 4) {
1176 memset(loc_addr, 0, sizeof(loc_addr));
1177 loc_addr[0] = ntohl(iph->daddr);
1178 memset(rem_addr, 0, sizeof(rem_addr));
1179 rem_addr[0] = ntohl(iph->saddr);
1180 } else {
1181 ip6h = (struct ipv6hdr *)buf->iph;
1182 i40iw_copy_ip_ntohl(loc_addr, ip6h->daddr.in6_u.u6_addr32);
1183 i40iw_copy_ip_ntohl(rem_addr, ip6h->saddr.in6_u.u6_addr32);
1184 }
1185 loc_port = ntohs(tcph->dest);
1186 rem_port = ntohs(tcph->source);
1187
1188 cm_node = i40iw_find_node(&iwdev->cm_core, rem_port, rem_addr, loc_port,
1189 loc_addr, false);
1190 if (!cm_node)
1191 return NULL;
1192 iwqp = cm_node->iwqp;
1193 return &iwqp->sc_qp;
1194}
1195
1196/**
1197 * i40iw_ieq_update_tcpip_info - update tcpip in the buffer
1198 * @buf: puda to update
1199 * @length: length of buffer
1200 * @seqnum: seq number for tcp
1201 */
1202void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf *buf, u16 length, u32 seqnum)
1203{
1204 struct tcphdr *tcph;
1205 struct iphdr *iph;
1206 u16 iphlen;
1207 u16 packetsize;
1208 u8 *addr = (u8 *)buf->mem.va;
1209
1210 iphlen = (buf->ipv4) ? 20 : 40;
1211 iph = (struct iphdr *)(addr + buf->maclen);
1212 tcph = (struct tcphdr *)(addr + buf->maclen + iphlen);
1213 packetsize = length + buf->tcphlen + iphlen;
1214
1215 iph->tot_len = htons(packetsize);
1216 tcph->seq = htonl(seqnum);
1217}
1218
1219/**
1220 * i40iw_puda_get_tcpip_info - get tcpip info from puda buffer
1221 * @info: to get information
1222 * @buf: puda buffer
1223 */
1224enum i40iw_status_code i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info *info,
1225 struct i40iw_puda_buf *buf)
1226{
1227 struct iphdr *iph;
1228 struct ipv6hdr *ip6h;
1229 struct tcphdr *tcph;
1230 u16 iphlen;
1231 u16 pkt_len;
1232 u8 *mem = (u8 *)buf->mem.va;
1233 struct ethhdr *ethh = (struct ethhdr *)buf->mem.va;
1234
1235 if (ethh->h_proto == htons(0x8100)) {
1236 info->vlan_valid = true;
1237 buf->vlan_id = ntohs(((struct vlan_ethhdr *)ethh)->h_vlan_TCI) & VLAN_VID_MASK;
1238 }
1239 buf->maclen = (info->vlan_valid) ? 18 : 14;
1240 iphlen = (info->l3proto) ? 40 : 20;
1241 buf->ipv4 = (info->l3proto) ? false : true;
1242 buf->iph = mem + buf->maclen;
1243 iph = (struct iphdr *)buf->iph;
1244
1245 buf->tcph = buf->iph + iphlen;
1246 tcph = (struct tcphdr *)buf->tcph;
1247
1248 if (buf->ipv4) {
1249 pkt_len = ntohs(iph->tot_len);
1250 } else {
1251 ip6h = (struct ipv6hdr *)buf->iph;
1252 pkt_len = ntohs(ip6h->payload_len) + iphlen;
1253 }
1254
1255 buf->totallen = pkt_len + buf->maclen;
1256
7581e96c 1257 if (info->payload_len < buf->totallen) {
4e9042e6
FL		 1258 i40iw_pr_err("payload_len = 0x%x totallen expected0x%x\n",
1259 info->payload_len, buf->totallen);
1260 return I40IW_ERR_INVALID_SIZE;
1261 }
1262
1263 buf->tcphlen = (tcph->doff) << 2;
1264 buf->datalen = pkt_len - iphlen - buf->tcphlen;
1265 buf->data = (buf->datalen) ? buf->tcph + buf->tcphlen : NULL;
1266 buf->hdrlen = buf->maclen + iphlen + buf->tcphlen;
1267 buf->seqnum = ntohl(tcph->seq);
1268 return 0;
1269}
1270
1271/**
1272 * i40iw_hw_stats_timeout - Stats timer-handler which updates all HW stats
1273 * @dev: hardware control device structure
1274 */
1275static void i40iw_hw_stats_timeout(unsigned long dev)
1276{
1277 struct i40iw_sc_dev *pf_dev = (struct i40iw_sc_dev *)dev;
1278 struct i40iw_dev_pestat *pf_devstat = &pf_dev->dev_pestat;
1279 struct i40iw_dev_pestat *vf_devstat = NULL;
1280 u16 iw_vf_idx;
1281 unsigned long flags;
1282
1283 /*PF*/
1284 pf_devstat->ops.iw_hw_stat_read_all(pf_devstat, &pf_devstat->hw_stats);
1285 for (iw_vf_idx = 0; iw_vf_idx < I40IW_MAX_PE_ENABLED_VF_COUNT; iw_vf_idx++) {
1286 spin_lock_irqsave(&pf_devstat->stats_lock, flags);
1287 if (pf_dev->vf_dev[iw_vf_idx]) {
1288 if (pf_dev->vf_dev[iw_vf_idx]->stats_initialized) {
1289 vf_devstat = &pf_dev->vf_dev[iw_vf_idx]->dev_pestat;
1290 vf_devstat->ops.iw_hw_stat_read_all(vf_devstat, &vf_devstat->hw_stats);
1291 }
1292 }
1293 spin_unlock_irqrestore(&pf_devstat->stats_lock, flags);
1294 }
1295
1296 mod_timer(&pf_devstat->stats_timer,
1297 jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
1298}
1299
1300/**
1301 * i40iw_hw_stats_start_timer - Start periodic stats timer
1302 * @dev: hardware control device structure
1303 */
1304void i40iw_hw_stats_start_timer(struct i40iw_sc_dev *dev)
1305{
1306 struct i40iw_dev_pestat *devstat = &dev->dev_pestat;
1307
1308 init_timer(&devstat->stats_timer);
1309 devstat->stats_timer.function = i40iw_hw_stats_timeout;
1310 devstat->stats_timer.data = (unsigned long)dev;
1311 mod_timer(&devstat->stats_timer,
1312 jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
1313}
1314
1315/**
1316 * i40iw_hw_stats_del_timer - Delete periodic stats timer
1317 * @dev: hardware control device structure
1318 */
1319void i40iw_hw_stats_del_timer(struct i40iw_sc_dev *dev)
1320{
1321 struct i40iw_dev_pestat *devstat = &dev->dev_pestat;
1322
1323 del_timer_sync(&devstat->stats_timer);
1324}
Linux 6.x block layer and io_uring tree(s)