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qlcnic: Add code to tune FW dump
[linux-2.6-block.git] / drivers / net / qlcnic / qlcnic_main.c
CommitLineData
af19b491 1/*
40839129
SV		 2 * QLogic qlcnic NIC Driver
3 * Copyright (c) 2009-2010 QLogic Corporation
af19b491 4 *
40839129 5 * See LICENSE.qlcnic for copyright and licensing details.
af19b491
AKS		 6 */
7
5a0e3ad6 8#include <linux/slab.h>
af19b491
AKS		 9#include <linux/vmalloc.h>
10#include <linux/interrupt.h>
11
12#include "qlcnic.h"
13
7e56cac4 14#include <linux/swab.h>
af19b491 15#include <linux/dma-mapping.h>
af19b491
AKS		 16#include <net/ip.h>
17#include <linux/ipv6.h>
18#include <linux/inetdevice.h>
19#include <linux/sysfs.h>
451724c8 20#include <linux/aer.h>
f94bc1e7 21#include <linux/log2.h>
af19b491 22
7f9a0c34 23MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
af19b491
AKS		 24MODULE_LICENSE("GPL");
25MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
26MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
27
28char qlcnic_driver_name[] = "qlcnic";
7f9a0c34
SV		 29static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
30 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
af19b491 31
f7ec804a 32static struct workqueue_struct *qlcnic_wq;
b5e5492c 33static int qlcnic_mac_learn;
b11a25aa 34module_param(qlcnic_mac_learn, int, 0444);
b5e5492c
AKS		 35MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
36
af19b491 37static int use_msi = 1;
b11a25aa 38module_param(use_msi, int, 0444);
af19b491
AKS		 39MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
40
41static int use_msi_x = 1;
b11a25aa 42module_param(use_msi_x, int, 0444);
af19b491
AKS		 43MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
44
9ce13ca8 45static int auto_fw_reset = 1;
af19b491
AKS		 46module_param(auto_fw_reset, int, 0644);
47MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
48
4d5bdb38 49static int load_fw_file;
b11a25aa 50module_param(load_fw_file, int, 0444);
4d5bdb38
AKS		 51MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
52
2e9d722d 53static int qlcnic_config_npars;
b11a25aa 54module_param(qlcnic_config_npars, int, 0444);
2e9d722d
AC		 55MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
56
af19b491
AKS		 57static int __devinit qlcnic_probe(struct pci_dev *pdev,
58 const struct pci_device_id *ent);
59static void __devexit qlcnic_remove(struct pci_dev *pdev);
60static int qlcnic_open(struct net_device *netdev);
61static int qlcnic_close(struct net_device *netdev);
af19b491 62static void qlcnic_tx_timeout(struct net_device *netdev);
af19b491
AKS		 63static void qlcnic_attach_work(struct work_struct *work);
64static void qlcnic_fwinit_work(struct work_struct *work);
65static void qlcnic_fw_poll_work(struct work_struct *work);
66static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
67 work_func_t func, int delay);
68static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
69static int qlcnic_poll(struct napi_struct *napi, int budget);
8f891387 70static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
af19b491
AKS		 71#ifdef CONFIG_NET_POLL_CONTROLLER
72static void qlcnic_poll_controller(struct net_device *netdev);
73#endif
74
75static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
76static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
77static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
78static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
79
6df900e9 80static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
21854f02 81static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
af19b491
AKS		 82static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
83
7eb9855d 84static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
af19b491
AKS		 85static irqreturn_t qlcnic_intr(int irq, void *data);
86static irqreturn_t qlcnic_msi_intr(int irq, void *data);
87static irqreturn_t qlcnic_msix_intr(int irq, void *data);
88
89static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
aec1e845 90static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
9f26f547
AC		 91static int qlcnic_start_firmware(struct qlcnic_adapter *);
92
b5e5492c
AKS		 93static void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
94static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
9f26f547 95static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
9f26f547
AC		 96static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
97static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
98static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
0325d69b
RB		 99static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
100 struct qlcnic_esw_func_cfg *);
b9796a14
AC		 101static void qlcnic_vlan_rx_add(struct net_device *, u16);
102static void qlcnic_vlan_rx_del(struct net_device *, u16);
103
af19b491
AKS		 104/* PCI Device ID Table */
105#define ENTRY(device) \
106 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
107 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
108
109#define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
110
6a902881 111static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
af19b491
AKS		 112 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
113 {0,}
114};
115
116MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
117
118
b1fc6d3c 119inline void
af19b491
AKS		 120qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
121 struct qlcnic_host_tx_ring *tx_ring)
122{
123 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
af19b491
AKS		 124}
125
126static const u32 msi_tgt_status[8] = {
127 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
128 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
129 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
130 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
131};
132
133static const
134struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
135
136static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
137{
138 writel(0, sds_ring->crb_intr_mask);
139}
140
141static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
142{
143 struct qlcnic_adapter *adapter = sds_ring->adapter;
144
145 writel(0x1, sds_ring->crb_intr_mask);
146
147 if (!QLCNIC_IS_MSI_FAMILY(adapter))
148 writel(0xfbff, adapter->tgt_mask_reg);
149}
150
151static int
152qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
153{
154 int size = sizeof(struct qlcnic_host_sds_ring) * count;
155
156 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
157
807540ba 158 return recv_ctx->sds_rings == NULL;
af19b491
AKS		 159}
160
161static void
162qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
163{
164 if (recv_ctx->sds_rings != NULL)
165 kfree(recv_ctx->sds_rings);
166
167 recv_ctx->sds_rings = NULL;
168}
169
170static int
171qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
172{
173 int ring;
174 struct qlcnic_host_sds_ring *sds_ring;
b1fc6d3c 175 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
af19b491
AKS		 176
177 if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
178 return -ENOMEM;
179
180 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
181 sds_ring = &recv_ctx->sds_rings[ring];
8f891387 182
183 if (ring == adapter->max_sds_rings - 1)
184 netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
185 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
186 else
187 netif_napi_add(netdev, &sds_ring->napi,
188 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
af19b491
AKS		 189 }
190
191 return 0;
192}
193
194static void
195qlcnic_napi_del(struct qlcnic_adapter *adapter)
196{
197 int ring;
198 struct qlcnic_host_sds_ring *sds_ring;
b1fc6d3c 199 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
af19b491
AKS		 200
201 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
202 sds_ring = &recv_ctx->sds_rings[ring];
203 netif_napi_del(&sds_ring->napi);
204 }
205
b1fc6d3c 206 qlcnic_free_sds_rings(adapter->recv_ctx);
af19b491
AKS		 207}
208
209static void
210qlcnic_napi_enable(struct qlcnic_adapter *adapter)
211{
212 int ring;
213 struct qlcnic_host_sds_ring *sds_ring;
b1fc6d3c 214 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
af19b491 215
780ab790
AKS		 216 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
217 return;
218
af19b491
AKS		 219 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
220 sds_ring = &recv_ctx->sds_rings[ring];
221 napi_enable(&sds_ring->napi);
222 qlcnic_enable_int(sds_ring);
223 }
224}
225
226static void
227qlcnic_napi_disable(struct qlcnic_adapter *adapter)
228{
229 int ring;
230 struct qlcnic_host_sds_ring *sds_ring;
b1fc6d3c 231 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
af19b491 232
780ab790
AKS		 233 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
234 return;
235
af19b491
AKS		 236 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
237 sds_ring = &recv_ctx->sds_rings[ring];
238 qlcnic_disable_int(sds_ring);
239 napi_synchronize(&sds_ring->napi);
240 napi_disable(&sds_ring->napi);
241 }
242}
243
244static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
245{
246 memset(&adapter->stats, 0, sizeof(adapter->stats));
af19b491
AKS		 247}
248
af19b491
AKS		 249static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
250{
251 u32 control;
252 int pos;
253
254 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
255 if (pos) {
256 pci_read_config_dword(pdev, pos, &control);
257 if (enable)
258 control |= PCI_MSIX_FLAGS_ENABLE;
259 else
260 control = 0;
261 pci_write_config_dword(pdev, pos, control);
262 }
263}
264
265static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
266{
267 int i;
268
269 for (i = 0; i < count; i++)
270 adapter->msix_entries[i].entry = i;
271}
272
273static int
274qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
275{
2e9d722d 276 u8 mac_addr[ETH_ALEN];
af19b491
AKS		 277 struct net_device *netdev = adapter->netdev;
278 struct pci_dev *pdev = adapter->pdev;
279
da48e6c3 280 if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
af19b491
AKS		 281 return -EIO;
282
2e9d722d 283 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
af19b491
AKS		 284 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
285 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
286
287 /* set station address */
288
289 if (!is_valid_ether_addr(netdev->perm_addr))
290 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
291 netdev->dev_addr);
292
293 return 0;
294}
295
296static int qlcnic_set_mac(struct net_device *netdev, void *p)
297{
298 struct qlcnic_adapter *adapter = netdev_priv(netdev);
299 struct sockaddr *addr = p;
300
7373373d
RB		 301 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
302 return -EOPNOTSUPP;
303
af19b491
AKS		 304 if (!is_valid_ether_addr(addr->sa_data))
305 return -EINVAL;
306
8a15ad1f 307 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
af19b491
AKS		 308 netif_device_detach(netdev);
309 qlcnic_napi_disable(adapter);
310 }
311
312 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
313 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
314 qlcnic_set_multi(adapter->netdev);
315
8a15ad1f 316 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
af19b491
AKS		 317 netif_device_attach(netdev);
318 qlcnic_napi_enable(adapter);
319 }
320 return 0;
321}
322
323static const struct net_device_ops qlcnic_netdev_ops = {
324 .ndo_open = qlcnic_open,
325 .ndo_stop = qlcnic_close,
326 .ndo_start_xmit = qlcnic_xmit_frame,
327 .ndo_get_stats = qlcnic_get_stats,
328 .ndo_validate_addr = eth_validate_addr,
329 .ndo_set_multicast_list = qlcnic_set_multi,
330 .ndo_set_mac_address = qlcnic_set_mac,
331 .ndo_change_mtu = qlcnic_change_mtu,
135d84a9
MM		 332 .ndo_fix_features = qlcnic_fix_features,
333 .ndo_set_features = qlcnic_set_features,
af19b491 334 .ndo_tx_timeout = qlcnic_tx_timeout,
b9796a14
AC		 335 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
336 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
af19b491
AKS		 337#ifdef CONFIG_NET_POLL_CONTROLLER
338 .ndo_poll_controller = qlcnic_poll_controller,
339#endif
340};
341
2e9d722d 342static struct qlcnic_nic_template qlcnic_ops = {
2e9d722d
AC		 343 .config_bridged_mode = qlcnic_config_bridged_mode,
344 .config_led = qlcnic_config_led,
9f26f547
AC		 345 .start_firmware = qlcnic_start_firmware
346};
347
348static struct qlcnic_nic_template qlcnic_vf_ops = {
9f26f547
AC		 349 .config_bridged_mode = qlcnicvf_config_bridged_mode,
350 .config_led = qlcnicvf_config_led,
9f26f547 351 .start_firmware = qlcnicvf_start_firmware
2e9d722d
AC		 352};
353
f94bc1e7 354static int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
af19b491 355{
af19b491 356 struct pci_dev *pdev = adapter->pdev;
f94bc1e7 357 int err = -1;
af19b491
AKS		 358
359 adapter->max_sds_rings = 1;
af19b491 360 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
af19b491
AKS		 361 qlcnic_set_msix_bit(pdev, 0);
362
363 if (adapter->msix_supported) {
f94bc1e7 364 enable_msix:
af19b491
AKS		 365 qlcnic_init_msix_entries(adapter, num_msix);
366 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
367 if (err == 0) {
368 adapter->flags |= QLCNIC_MSIX_ENABLED;
369 qlcnic_set_msix_bit(pdev, 1);
370
b1fc6d3c 371 adapter->max_sds_rings = num_msix;
af19b491
AKS		 372
373 dev_info(&pdev->dev, "using msi-x interrupts\n");
f94bc1e7 374 return err;
af19b491 375 }
f94bc1e7
SC		 376 if (err > 0) {
377 num_msix = rounddown_pow_of_two(err);
378 if (num_msix)
379 goto enable_msix;
380 }
381 }
382 return err;
383}
af19b491 384
af19b491 385
f94bc1e7
SC		 386static void qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
387{
388 const struct qlcnic_legacy_intr_set *legacy_intrp;
389 struct pci_dev *pdev = adapter->pdev;
af19b491
AKS		 390
391 if (use_msi && !pci_enable_msi(pdev)) {
392 adapter->flags |= QLCNIC_MSI_ENABLED;
393 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
b1fc6d3c 394 msi_tgt_status[adapter->ahw->pci_func]);
af19b491
AKS		 395 dev_info(&pdev->dev, "using msi interrupts\n");
396 adapter->msix_entries[0].vector = pdev->irq;
397 return;
398 }
399
f94bc1e7
SC		 400 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
401
402 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
403 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
404 legacy_intrp->tgt_status_reg);
405 adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
406 legacy_intrp->tgt_mask_reg);
407 adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
408
409 adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
410 ISR_INT_STATE_REG);
af19b491
AKS		 411 dev_info(&pdev->dev, "using legacy interrupts\n");
412 adapter->msix_entries[0].vector = pdev->irq;
413}
414
f94bc1e7
SC		 415static void
416qlcnic_setup_intr(struct qlcnic_adapter *adapter)
417{
418 int num_msix;
419
420 if (adapter->msix_supported) {
421 num_msix = (num_online_cpus() >=
422 QLCNIC_DEF_NUM_STS_DESC_RINGS) ?
423 QLCNIC_DEF_NUM_STS_DESC_RINGS :
424 QLCNIC_MIN_NUM_RSS_RINGS;
425 } else
426 num_msix = 1;
427
428 if (!qlcnic_enable_msix(adapter, num_msix))
429 return;
430
431 qlcnic_enable_msi_legacy(adapter);
432}
433
af19b491
AKS		 434static void
435qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
436{
437 if (adapter->flags & QLCNIC_MSIX_ENABLED)
438 pci_disable_msix(adapter->pdev);
439 if (adapter->flags & QLCNIC_MSI_ENABLED)
440 pci_disable_msi(adapter->pdev);
441}
442
443static void
444qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
445{
b1fc6d3c
AC		 446 if (adapter->ahw->pci_base0 != NULL)
447 iounmap(adapter->ahw->pci_base0);
af19b491
AKS		 448}
449
346fe763
RB		 450static int
451qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
452{
e88db3bd 453 struct qlcnic_pci_info *pci_info;
900853a4 454 int i, ret = 0;
346fe763
RB		 455 u8 pfn;
456
e88db3bd
DC		 457 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
458 if (!pci_info)
459 return -ENOMEM;
460
ca315ac2 461 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
346fe763 462 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
e88db3bd 463 if (!adapter->npars) {
900853a4 464 ret = -ENOMEM;
e88db3bd
DC		 465 goto err_pci_info;
466 }
346fe763 467
ca315ac2 468 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
346fe763
RB		 469 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
470 if (!adapter->eswitch) {
900853a4 471 ret = -ENOMEM;
ca315ac2 472 goto err_npars;
346fe763
RB		 473 }
474
475 ret = qlcnic_get_pci_info(adapter, pci_info);
ca315ac2
DC		 476 if (ret)
477 goto err_eswitch;
346fe763 478
ca315ac2
DC		 479 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
480 pfn = pci_info[i].id;
f848d6dd
SC		 481 if (pfn > QLCNIC_MAX_PCI_FUNC) {
482 ret = QL_STATUS_INVALID_PARAM;
483 goto err_eswitch;
484 }
a1c0c459
SC		 485 adapter->npars[pfn].active = (u8)pci_info[i].active;
486 adapter->npars[pfn].type = (u8)pci_info[i].type;
487 adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
ca315ac2
DC		 488 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
489 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
346fe763
RB		 490 }
491
ca315ac2
DC		 492 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
493 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
494
e88db3bd 495 kfree(pci_info);
ca315ac2
DC		 496 return 0;
497
498err_eswitch:
346fe763
RB		 499 kfree(adapter->eswitch);
500 adapter->eswitch = NULL;
ca315ac2 501err_npars:
346fe763 502 kfree(adapter->npars);
ca315ac2 503 adapter->npars = NULL;
e88db3bd
DC		 504err_pci_info:
505 kfree(pci_info);
346fe763
RB		 506
507 return ret;
508}
509
2e9d722d
AC		 510static int
511qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
512{
513 u8 id;
514 u32 ref_count;
515 int i, ret = 1;
516 u32 data = QLCNIC_MGMT_FUNC;
b1fc6d3c 517 void __iomem *priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
2e9d722d
AC		 518
519 /* If other drivers are not in use set their privilege level */
31018e06 520 ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2e9d722d
AC		 521 ret = qlcnic_api_lock(adapter);
522 if (ret)
523 goto err_lock;
2e9d722d 524
0e33c664
AC		 525 if (qlcnic_config_npars) {
526 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
346fe763 527 id = i;
0e33c664 528 if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
b1fc6d3c 529 id == adapter->ahw->pci_func)
0e33c664
AC		 530 continue;
531 data |= (qlcnic_config_npars &
532 QLC_DEV_SET_DRV(0xf, id));
533 }
534 } else {
535 data = readl(priv_op);
b1fc6d3c 536 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw->pci_func)) |
0e33c664 537 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
b1fc6d3c 538 adapter->ahw->pci_func));
2e9d722d
AC		 539 }
540 writel(data, priv_op);
2e9d722d
AC		 541 qlcnic_api_unlock(adapter);
542err_lock:
543 return ret;
544}
545
0866d96d
AC		 546static void
547qlcnic_check_vf(struct qlcnic_adapter *adapter)
2e9d722d
AC		 548{
549 void __iomem *msix_base_addr;
550 void __iomem *priv_op;
551 u32 func;
552 u32 msix_base;
553 u32 op_mode, priv_level;
554
555 /* Determine FW API version */
b1fc6d3c
AC		 556 adapter->fw_hal_version = readl(adapter->ahw->pci_base0 +
557 QLCNIC_FW_API);
2e9d722d
AC		 558
559 /* Find PCI function number */
560 pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
b1fc6d3c 561 msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
2e9d722d
AC		 562 msix_base = readl(msix_base_addr);
563 func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
b1fc6d3c 564 adapter->ahw->pci_func = func;
2e9d722d
AC		 565
566 /* Determine function privilege level */
b1fc6d3c 567 priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
2e9d722d 568 op_mode = readl(priv_op);
0e33c664 569 if (op_mode == QLC_DEV_DRV_DEFAULT)
2e9d722d 570 priv_level = QLCNIC_MGMT_FUNC;
0e33c664 571 else
b1fc6d3c 572 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
2e9d722d 573
0866d96d 574 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
9f26f547
AC		 575 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
576 dev_info(&adapter->pdev->dev,
577 "HAL Version: %d Non Privileged function\n",
578 adapter->fw_hal_version);
579 adapter->nic_ops = &qlcnic_vf_ops;
0866d96d
AC		 580 } else
581 adapter->nic_ops = &qlcnic_ops;
2e9d722d
AC		 582}
583
af19b491
AKS		 584static int
585qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
586{
587 void __iomem *mem_ptr0 = NULL;
588 resource_size_t mem_base;
589 unsigned long mem_len, pci_len0 = 0;
590
591 struct pci_dev *pdev = adapter->pdev;
af19b491 592
af19b491
AKS		 593 /* remap phys address */
594 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
595 mem_len = pci_resource_len(pdev, 0);
596
597 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
598
599 mem_ptr0 = pci_ioremap_bar(pdev, 0);
600 if (mem_ptr0 == NULL) {
601 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
602 return -EIO;
603 }
604 pci_len0 = mem_len;
605 } else {
606 return -EIO;
607 }
608
609 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
610
b1fc6d3c
AC		 611 adapter->ahw->pci_base0 = mem_ptr0;
612 adapter->ahw->pci_len0 = pci_len0;
af19b491 613
0866d96d 614 qlcnic_check_vf(adapter);
2e9d722d 615
b1fc6d3c
AC		 616 adapter->ahw->ocm_win_crb = qlcnic_get_ioaddr(adapter,
617 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(
618 adapter->ahw->pci_func)));
af19b491
AKS		 619
620 return 0;
621}
622
623static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
624{
625 struct pci_dev *pdev = adapter->pdev;
626 int i, found = 0;
627
628 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
629 if (qlcnic_boards[i].vendor == pdev->vendor &&
630 qlcnic_boards[i].device == pdev->device &&
631 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
632 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
02f6e46f
SC		 633 sprintf(name, "%pM: %s" ,
634 adapter->mac_addr,
635 qlcnic_boards[i].short_name);
af19b491
AKS		 636 found = 1;
637 break;
638 }
639
640 }
641
642 if (!found)
7f9a0c34 643 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
af19b491
AKS		 644}
645
646static void
647qlcnic_check_options(struct qlcnic_adapter *adapter)
648{
649 u32 fw_major, fw_minor, fw_build;
af19b491 650 struct pci_dev *pdev = adapter->pdev;
af19b491
AKS		 651
652 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
653 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
654 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
655
656 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
657
251a84c9
AKS		 658 dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
659 fw_major, fw_minor, fw_build);
b1fc6d3c 660 if (adapter->ahw->port_type == QLCNIC_XGBE) {
90d19005
SC		 661 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
662 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
663 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
664 } else {
665 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
666 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
667 }
668
af19b491 669 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
90d19005
SC		 670 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
671
b1fc6d3c 672 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
af19b491
AKS		 673 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
674 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
90d19005
SC		 675 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
676 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
af19b491
AKS		 677 }
678
679 adapter->msix_supported = !!use_msi_x;
af19b491
AKS		 680
681 adapter->num_txd = MAX_CMD_DESCRIPTORS;
682
251b036a 683 adapter->max_rds_rings = MAX_RDS_RINGS;
af19b491
AKS		 684}
685
174240a8
RB		 686static int
687qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
688{
689 int err;
690 struct qlcnic_info nic_info;
691
b1fc6d3c 692 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
174240a8
RB		 693 if (err)
694 return err;
695
a1c0c459 696 adapter->physical_port = (u8)nic_info.phys_port;
174240a8
RB		 697 adapter->switch_mode = nic_info.switch_mode;
698 adapter->max_tx_ques = nic_info.max_tx_ques;
699 adapter->max_rx_ques = nic_info.max_rx_ques;
700 adapter->capabilities = nic_info.capabilities;
701 adapter->max_mac_filters = nic_info.max_mac_filters;
702 adapter->max_mtu = nic_info.max_mtu;
703
704 if (adapter->capabilities & BIT_6)
705 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
706 else
707 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
708
709 return err;
710}
711
8cf61f89
AKS		 712static void
713qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
714 struct qlcnic_esw_func_cfg *esw_cfg)
715{
716 if (esw_cfg->discard_tagged)
717 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
718 else
719 adapter->flags |= QLCNIC_TAGGING_ENABLED;
720
721 if (esw_cfg->vlan_id)
722 adapter->pvid = esw_cfg->vlan_id;
723 else
724 adapter->pvid = 0;
725}
726
b9796a14
AC		 727static void
728qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
729{
730 struct qlcnic_adapter *adapter = netdev_priv(netdev);
731 set_bit(vid, adapter->vlans);
732}
733
734static void
735qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
736{
737 struct qlcnic_adapter *adapter = netdev_priv(netdev);
738
739 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
740 clear_bit(vid, adapter->vlans);
741}
742
0325d69b
RB		 743static void
744qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
745 struct qlcnic_esw_func_cfg *esw_cfg)
746{
ee07c1a7
RB		 747 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
748 QLCNIC_PROMISC_DISABLED);
7613c87b
RB		 749
750 if (esw_cfg->mac_anti_spoof)
751 adapter->flags |= QLCNIC_MACSPOOF;
fe4d434d 752
7373373d
RB		 753 if (!esw_cfg->mac_override)
754 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
755
ee07c1a7
RB		 756 if (!esw_cfg->promisc_mode)
757 adapter->flags |= QLCNIC_PROMISC_DISABLED;
758
0325d69b
RB		 759 qlcnic_set_netdev_features(adapter, esw_cfg);
760}
761
762static int
763qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
764{
765 struct qlcnic_esw_func_cfg esw_cfg;
766
767 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
768 return 0;
769
b1fc6d3c 770 esw_cfg.pci_func = adapter->ahw->pci_func;
0325d69b
RB		 771 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
772 return -EIO;
8cf61f89 773 qlcnic_set_vlan_config(adapter, &esw_cfg);
0325d69b
RB		 774 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
775
776 return 0;
777}
778
779static void
780qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
781 struct qlcnic_esw_func_cfg *esw_cfg)
782{
783 struct net_device *netdev = adapter->netdev;
784 unsigned long features, vlan_features;
785
135d84a9 786 features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
0325d69b
RB		 787 NETIF_F_IPV6_CSUM | NETIF_F_GRO);
788 vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
b9796a14 789 NETIF_F_IPV6_CSUM | NETIF_F_HW_VLAN_FILTER);
0325d69b
RB		 790
791 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
792 features |= (NETIF_F_TSO | NETIF_F_TSO6);
793 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
794 }
b56421d0
RB		 795
796 if (netdev->features & NETIF_F_LRO)
0325d69b
RB		 797 features |= NETIF_F_LRO;
798
799 if (esw_cfg->offload_flags & BIT_0) {
800 netdev->features |= features;
0325d69b
RB		 801 if (!(esw_cfg->offload_flags & BIT_1))
802 netdev->features &= ~NETIF_F_TSO;
803 if (!(esw_cfg->offload_flags & BIT_2))
804 netdev->features &= ~NETIF_F_TSO6;
805 } else {
806 netdev->features &= ~features;
0325d69b
RB		 807 }
808
809 netdev->vlan_features = (features & vlan_features);
810}
811
0866d96d
AC		 812static int
813qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
814{
815 void __iomem *priv_op;
816 u32 op_mode, priv_level;
817 int err = 0;
818
174240a8
RB		 819 err = qlcnic_initialize_nic(adapter);
820 if (err)
821 return err;
822
0866d96d
AC		 823 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
824 return 0;
825
b1fc6d3c 826 priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
0866d96d 827 op_mode = readl(priv_op);
b1fc6d3c 828 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
0866d96d
AC		 829
830 if (op_mode == QLC_DEV_DRV_DEFAULT)
831 priv_level = QLCNIC_MGMT_FUNC;
832 else
b1fc6d3c 833 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
0866d96d 834
174240a8 835 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
0866d96d
AC		 836 if (priv_level == QLCNIC_MGMT_FUNC) {
837 adapter->op_mode = QLCNIC_MGMT_FUNC;
838 err = qlcnic_init_pci_info(adapter);
839 if (err)
840 return err;
841 /* Set privilege level for other functions */
842 qlcnic_set_function_modes(adapter);
843 dev_info(&adapter->pdev->dev,
844 "HAL Version: %d, Management function\n",
845 adapter->fw_hal_version);
846 } else if (priv_level == QLCNIC_PRIV_FUNC) {
847 adapter->op_mode = QLCNIC_PRIV_FUNC;
848 dev_info(&adapter->pdev->dev,
849 "HAL Version: %d, Privileged function\n",
850 adapter->fw_hal_version);
851 }
174240a8 852 }
0866d96d
AC		 853
854 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
855
856 return err;
857}
858
0325d69b
RB		 859static int
860qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
861{
862 struct qlcnic_esw_func_cfg esw_cfg;
863 struct qlcnic_npar_info *npar;
864 u8 i;
865
174240a8 866 if (adapter->need_fw_reset)
0325d69b
RB		 867 return 0;
868
869 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
870 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
871 continue;
872 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
873 esw_cfg.pci_func = i;
874 esw_cfg.offload_flags = BIT_0;
7373373d 875 esw_cfg.mac_override = BIT_0;
ee07c1a7 876 esw_cfg.promisc_mode = BIT_0;
0325d69b
RB		 877 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
878 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
879 if (qlcnic_config_switch_port(adapter, &esw_cfg))
880 return -EIO;
881 npar = &adapter->npars[i];
882 npar->pvid = esw_cfg.vlan_id;
7373373d 883 npar->mac_override = esw_cfg.mac_override;
0325d69b
RB		 884 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
885 npar->discard_tagged = esw_cfg.discard_tagged;
886 npar->promisc_mode = esw_cfg.promisc_mode;
887 npar->offload_flags = esw_cfg.offload_flags;
888 }
889
890 return 0;
891}
892
4e8acb01
RB		 893static int
894qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
895 struct qlcnic_npar_info *npar, int pci_func)
896{
897 struct qlcnic_esw_func_cfg esw_cfg;
898 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
899 esw_cfg.pci_func = pci_func;
900 esw_cfg.vlan_id = npar->pvid;
7373373d 901 esw_cfg.mac_override = npar->mac_override;
4e8acb01
RB		 902 esw_cfg.discard_tagged = npar->discard_tagged;
903 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
904 esw_cfg.offload_flags = npar->offload_flags;
905 esw_cfg.promisc_mode = npar->promisc_mode;
906 if (qlcnic_config_switch_port(adapter, &esw_cfg))
907 return -EIO;
908
909 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
910 if (qlcnic_config_switch_port(adapter, &esw_cfg))
911 return -EIO;
912
913 return 0;
914}
915
cea8975e
AC		 916static int
917qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
918{
4e8acb01 919 int i, err;
cea8975e
AC		 920 struct qlcnic_npar_info *npar;
921 struct qlcnic_info nic_info;
922
174240a8 923 if (!adapter->need_fw_reset)
cea8975e
AC		 924 return 0;
925
4e8acb01
RB		 926 /* Set the NPAR config data after FW reset */
927 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
928 npar = &adapter->npars[i];
929 if (npar->type != QLCNIC_TYPE_NIC)
930 continue;
931 err = qlcnic_get_nic_info(adapter, &nic_info, i);
932 if (err)
933 return err;
934 nic_info.min_tx_bw = npar->min_bw;
935 nic_info.max_tx_bw = npar->max_bw;
936 err = qlcnic_set_nic_info(adapter, &nic_info);
937 if (err)
938 return err;
cea8975e 939
4e8acb01
RB		 940 if (npar->enable_pm) {
941 err = qlcnic_config_port_mirroring(adapter,
942 npar->dest_npar, 1, i);
943 if (err)
944 return err;
cea8975e 945 }
4e8acb01
RB		 946 err = qlcnic_reset_eswitch_config(adapter, npar, i);
947 if (err)
948 return err;
cea8975e 949 }
4e8acb01 950 return 0;
cea8975e
AC		 951}
952
78f84e1a
AKS		 953static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
954{
955 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
956 u32 npar_state;
957
958 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
959 return 0;
960
961 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
962 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
963 msleep(1000);
964 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
965 }
966 if (!npar_opt_timeo) {
967 dev_err(&adapter->pdev->dev,
968 "Waiting for NPAR state to opertional timeout\n");
969 return -EIO;
970 }
971 return 0;
972}
973
174240a8
RB		 974static int
975qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
976{
977 int err;
978
979 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
980 adapter->op_mode != QLCNIC_MGMT_FUNC)
981 return 0;
982
983 err = qlcnic_set_default_offload_settings(adapter);
984 if (err)
985 return err;
986
987 err = qlcnic_reset_npar_config(adapter);
988 if (err)
989 return err;
990
991 qlcnic_dev_set_npar_ready(adapter);
992
993 return err;
994}
995
af19b491
AKS		 996static int
997qlcnic_start_firmware(struct qlcnic_adapter *adapter)
998{
d4066833 999 int err;
af19b491 1000
aa5e18c0
SC		 1001 err = qlcnic_can_start_firmware(adapter);
1002 if (err < 0)
1003 return err;
1004 else if (!err)
d4066833 1005 goto check_fw_status;
af19b491 1006
4d5bdb38
AKS		 1007 if (load_fw_file)
1008 qlcnic_request_firmware(adapter);
8f891387 1009 else {
8cfdce08
SC		 1010 err = qlcnic_check_flash_fw_ver(adapter);
1011 if (err)
8f891387 1012 goto err_out;
1013
4d5bdb38 1014 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
8f891387 1015 }
af19b491
AKS		 1016
1017 err = qlcnic_need_fw_reset(adapter);
af19b491 1018 if (err == 0)
4e70812b 1019 goto check_fw_status;
af19b491 1020
d4066833
SC		 1021 err = qlcnic_pinit_from_rom(adapter);
1022 if (err)
1023 goto err_out;
af19b491
AKS		 1024
1025 err = qlcnic_load_firmware(adapter);
1026 if (err)
1027 goto err_out;
1028
1029 qlcnic_release_firmware(adapter);
d4066833 1030 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
af19b491 1031
d4066833
SC		 1032check_fw_status:
1033 err = qlcnic_check_fw_status(adapter);
af19b491
AKS		 1034 if (err)
1035 goto err_out;
1036
1037 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
6df900e9 1038 qlcnic_idc_debug_info(adapter, 1);
b18971d1 1039
0866d96d
AC		 1040 err = qlcnic_check_eswitch_mode(adapter);
1041 if (err) {
1042 dev_err(&adapter->pdev->dev,
1043 "Memory allocation failed for eswitch\n");
1044 goto err_out;
1045 }
174240a8
RB		 1046 err = qlcnic_set_mgmt_operations(adapter);
1047 if (err)
1048 goto err_out;
1049
1050 qlcnic_check_options(adapter);
af19b491
AKS		 1051 adapter->need_fw_reset = 0;
1052
a7fc948f
AKS		 1053 qlcnic_release_firmware(adapter);
1054 return 0;
af19b491
AKS		 1055
1056err_out:
a7fc948f
AKS		 1057 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1058 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
0866d96d 1059
af19b491
AKS		 1060 qlcnic_release_firmware(adapter);
1061 return err;
1062}
1063
1064static int
1065qlcnic_request_irq(struct qlcnic_adapter *adapter)
1066{
1067 irq_handler_t handler;
1068 struct qlcnic_host_sds_ring *sds_ring;
1069 int err, ring;
1070
1071 unsigned long flags = 0;
1072 struct net_device *netdev = adapter->netdev;
b1fc6d3c 1073 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
af19b491 1074
7eb9855d
AKS		 1075 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1076 handler = qlcnic_tmp_intr;
1077 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1078 flags |= IRQF_SHARED;
1079
1080 } else {
1081 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1082 handler = qlcnic_msix_intr;
1083 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1084 handler = qlcnic_msi_intr;
1085 else {
1086 flags |= IRQF_SHARED;
1087 handler = qlcnic_intr;
1088 }
af19b491
AKS		 1089 }
1090 adapter->irq = netdev->irq;
1091
1092 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1093 sds_ring = &recv_ctx->sds_rings[ring];
1094 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1095 err = request_irq(sds_ring->irq, handler,
1096 flags, sds_ring->name, sds_ring);
1097 if (err)
1098 return err;
1099 }
1100
1101 return 0;
1102}
1103
1104static void
1105qlcnic_free_irq(struct qlcnic_adapter *adapter)
1106{
1107 int ring;
1108 struct qlcnic_host_sds_ring *sds_ring;
1109
b1fc6d3c 1110 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
af19b491
AKS		 1111
1112 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1113 sds_ring = &recv_ctx->sds_rings[ring];
1114 free_irq(sds_ring->irq, sds_ring);
1115 }
1116}
1117
af19b491
AKS		 1118static int
1119__qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1120{
8a15ad1f
AKS		 1121 int ring;
1122 struct qlcnic_host_rds_ring *rds_ring;
1123
af19b491
AKS		 1124 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1125 return -EIO;
1126
8a15ad1f
AKS		 1127 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1128 return 0;
0325d69b
RB		 1129 if (qlcnic_set_eswitch_port_config(adapter))
1130 return -EIO;
8a15ad1f
AKS		 1131
1132 if (qlcnic_fw_create_ctx(adapter))
1133 return -EIO;
1134
1135 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
b1fc6d3c
AC		 1136 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1137 qlcnic_post_rx_buffers(adapter, rds_ring);
8a15ad1f
AKS		 1138 }
1139
af19b491
AKS		 1140 qlcnic_set_multi(netdev);
1141 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1142
b1fc6d3c 1143 adapter->ahw->linkup = 0;
af19b491
AKS		 1144
1145 if (adapter->max_sds_rings > 1)
1146 qlcnic_config_rss(adapter, 1);
1147
1148 qlcnic_config_intr_coalesce(adapter);
1149
24763d80 1150 if (netdev->features & NETIF_F_LRO)
af19b491
AKS		 1151 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1152
1153 qlcnic_napi_enable(adapter);
1154
1155 qlcnic_linkevent_request(adapter, 1);
1156
68bf1c68 1157 adapter->reset_context = 0;
af19b491
AKS		 1158 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1159 return 0;
1160}
1161
1162/* Usage: During resume and firmware recovery module.*/
1163
1164static int
1165qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1166{
1167 int err = 0;
1168
1169 rtnl_lock();
1170 if (netif_running(netdev))
1171 err = __qlcnic_up(adapter, netdev);
1172 rtnl_unlock();
1173
1174 return err;
1175}
1176
1177static void
1178__qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1179{
1180 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1181 return;
1182
1183 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1184 return;
1185
1186 smp_mb();
1187 spin_lock(&adapter->tx_clean_lock);
1188 netif_carrier_off(netdev);
1189 netif_tx_disable(netdev);
1190
1191 qlcnic_free_mac_list(adapter);
1192
b5e5492c
AKS		 1193 if (adapter->fhash.fnum)
1194 qlcnic_delete_lb_filters(adapter);
1195
af19b491
AKS		 1196 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1197
1198 qlcnic_napi_disable(adapter);
1199
8a15ad1f
AKS		 1200 qlcnic_fw_destroy_ctx(adapter);
1201
1202 qlcnic_reset_rx_buffers_list(adapter);
af19b491
AKS		 1203 qlcnic_release_tx_buffers(adapter);
1204 spin_unlock(&adapter->tx_clean_lock);
1205}
1206
1207/* Usage: During suspend and firmware recovery module */
1208
1209static void
1210qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1211{
1212 rtnl_lock();
1213 if (netif_running(netdev))
1214 __qlcnic_down(adapter, netdev);
1215 rtnl_unlock();
1216
1217}
1218
1219static int
1220qlcnic_attach(struct qlcnic_adapter *adapter)
1221{
1222 struct net_device *netdev = adapter->netdev;
1223 struct pci_dev *pdev = adapter->pdev;
8a15ad1f 1224 int err;
af19b491
AKS		 1225
1226 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1227 return 0;
1228
af19b491
AKS		 1229 err = qlcnic_napi_add(adapter, netdev);
1230 if (err)
1231 return err;
1232
1233 err = qlcnic_alloc_sw_resources(adapter);
1234 if (err) {
1235 dev_err(&pdev->dev, "Error in setting sw resources\n");
8a15ad1f 1236 goto err_out_napi_del;
af19b491
AKS		 1237 }
1238
1239 err = qlcnic_alloc_hw_resources(adapter);
1240 if (err) {
1241 dev_err(&pdev->dev, "Error in setting hw resources\n");
1242 goto err_out_free_sw;
1243 }
1244
af19b491
AKS		 1245 err = qlcnic_request_irq(adapter);
1246 if (err) {
1247 dev_err(&pdev->dev, "failed to setup interrupt\n");
8a15ad1f 1248 goto err_out_free_hw;
af19b491
AKS		 1249 }
1250
af19b491
AKS		 1251 qlcnic_create_sysfs_entries(adapter);
1252
1253 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1254 return 0;
1255
8a15ad1f 1256err_out_free_hw:
af19b491
AKS		 1257 qlcnic_free_hw_resources(adapter);
1258err_out_free_sw:
1259 qlcnic_free_sw_resources(adapter);
8a15ad1f
AKS		 1260err_out_napi_del:
1261 qlcnic_napi_del(adapter);
af19b491
AKS		 1262 return err;
1263}
1264
1265static void
1266qlcnic_detach(struct qlcnic_adapter *adapter)
1267{
1268 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1269 return;
1270
1271 qlcnic_remove_sysfs_entries(adapter);
1272
1273 qlcnic_free_hw_resources(adapter);
1274 qlcnic_release_rx_buffers(adapter);
1275 qlcnic_free_irq(adapter);
1276 qlcnic_napi_del(adapter);
1277 qlcnic_free_sw_resources(adapter);
1278
1279 adapter->is_up = 0;
1280}
1281
7eb9855d
AKS		 1282void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1283{
1284 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1285 struct qlcnic_host_sds_ring *sds_ring;
1286 int ring;
1287
78ad3892 1288 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
cdaff185
AKS		 1289 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1290 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
b1fc6d3c 1291 sds_ring = &adapter->recv_ctx->sds_rings[ring];
cdaff185
AKS		 1292 qlcnic_disable_int(sds_ring);
1293 }
7eb9855d
AKS		 1294 }
1295
8a15ad1f
AKS		 1296 qlcnic_fw_destroy_ctx(adapter);
1297
7eb9855d
AKS		 1298 qlcnic_detach(adapter);
1299
1300 adapter->diag_test = 0;
1301 adapter->max_sds_rings = max_sds_rings;
1302
1303 if (qlcnic_attach(adapter))
34ce3626 1304 goto out;
7eb9855d
AKS		 1305
1306 if (netif_running(netdev))
1307 __qlcnic_up(adapter, netdev);
34ce3626 1308out:
7eb9855d
AKS		 1309 netif_device_attach(netdev);
1310}
1311
b1fc6d3c
AC		 1312static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1313{
1314 int err = 0;
1315 adapter->ahw = kzalloc(sizeof(struct qlcnic_hardware_context),
1316 GFP_KERNEL);
1317 if (!adapter->ahw) {
1318 dev_err(&adapter->pdev->dev,
1319 "Failed to allocate recv ctx resources for adapter\n");
1320 err = -ENOMEM;
1321 goto err_out;
1322 }
1323 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1324 GFP_KERNEL);
1325 if (!adapter->recv_ctx) {
1326 dev_err(&adapter->pdev->dev,
1327 "Failed to allocate recv ctx resources for adapter\n");
1328 kfree(adapter->ahw);
1329 adapter->ahw = NULL;
1330 err = -ENOMEM;
8816d009 1331 goto err_out;
b1fc6d3c 1332 }
8816d009
AC		 1333 /* Initialize interrupt coalesce parameters */
1334 adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1335 adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1336 adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
b1fc6d3c
AC		 1337err_out:
1338 return err;
1339}
1340
1341static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1342{
1343 kfree(adapter->recv_ctx);
1344 adapter->recv_ctx = NULL;
1345
18f2f616
AC		 1346 if (adapter->ahw->fw_dump.tmpl_hdr) {
1347 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1348 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1349 }
b1fc6d3c
AC		 1350 kfree(adapter->ahw);
1351 adapter->ahw = NULL;
1352}
1353
7eb9855d
AKS		 1354int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1355{
1356 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1357 struct qlcnic_host_sds_ring *sds_ring;
8a15ad1f 1358 struct qlcnic_host_rds_ring *rds_ring;
7eb9855d
AKS		 1359 int ring;
1360 int ret;
1361
1362 netif_device_detach(netdev);
1363
1364 if (netif_running(netdev))
1365 __qlcnic_down(adapter, netdev);
1366
1367 qlcnic_detach(adapter);
1368
1369 adapter->max_sds_rings = 1;
1370 adapter->diag_test = test;
1371
1372 ret = qlcnic_attach(adapter);
34ce3626
AKS		 1373 if (ret) {
1374 netif_device_attach(netdev);
7eb9855d 1375 return ret;
34ce3626 1376 }
7eb9855d 1377
8a15ad1f
AKS		 1378 ret = qlcnic_fw_create_ctx(adapter);
1379 if (ret) {
1380 qlcnic_detach(adapter);
57e46248 1381 netif_device_attach(netdev);
8a15ad1f
AKS		 1382 return ret;
1383 }
1384
1385 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
b1fc6d3c
AC		 1386 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1387 qlcnic_post_rx_buffers(adapter, rds_ring);
8a15ad1f
AKS		 1388 }
1389
cdaff185
AKS		 1390 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1391 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
b1fc6d3c 1392 sds_ring = &adapter->recv_ctx->sds_rings[ring];
cdaff185
AKS		 1393 qlcnic_enable_int(sds_ring);
1394 }
7eb9855d 1395 }
78ad3892 1396 set_bit(__QLCNIC_DEV_UP, &adapter->state);
7eb9855d
AKS		 1397
1398 return 0;
1399}
1400
68bf1c68
AKS		 1401/* Reset context in hardware only */
1402static int
1403qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1404{
1405 struct net_device *netdev = adapter->netdev;
1406
1407 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1408 return -EBUSY;
1409
1410 netif_device_detach(netdev);
1411
1412 qlcnic_down(adapter, netdev);
1413
1414 qlcnic_up(adapter, netdev);
1415
1416 netif_device_attach(netdev);
1417
1418 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1419 return 0;
1420}
1421
af19b491
AKS		 1422int
1423qlcnic_reset_context(struct qlcnic_adapter *adapter)
1424{
1425 int err = 0;
1426 struct net_device *netdev = adapter->netdev;
1427
1428 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1429 return -EBUSY;
1430
1431 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1432
1433 netif_device_detach(netdev);
1434
1435 if (netif_running(netdev))
1436 __qlcnic_down(adapter, netdev);
1437
1438 qlcnic_detach(adapter);
1439
1440 if (netif_running(netdev)) {
1441 err = qlcnic_attach(adapter);
1442 if (!err)
34ce3626 1443 __qlcnic_up(adapter, netdev);
af19b491
AKS		 1444 }
1445
1446 netif_device_attach(netdev);
1447 }
1448
af19b491
AKS		 1449 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1450 return err;
1451}
1452
1453static int
1454qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1bb09fb9 1455 struct net_device *netdev, u8 pci_using_dac)
af19b491
AKS		 1456{
1457 int err;
1458 struct pci_dev *pdev = adapter->pdev;
1459
af19b491
AKS		 1460 adapter->mc_enabled = 0;
1461 adapter->max_mc_count = 38;
1462
1463 netdev->netdev_ops = &qlcnic_netdev_ops;
ef71ff83 1464 netdev->watchdog_timeo = 5*HZ;
af19b491
AKS		 1465
1466 qlcnic_change_mtu(netdev, netdev->mtu);
1467
1468 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1469
135d84a9
MM		 1470 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
1471 NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM;
ac8d0c4f 1472
135d84a9
MM		 1473 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
1474 netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
1475 if (pci_using_dac)
1476 netdev->hw_features |= NETIF_F_HIGHDMA;
af19b491 1477
135d84a9 1478 netdev->vlan_features = netdev->hw_features;
af19b491
AKS		 1479
1480 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
135d84a9 1481 netdev->hw_features |= NETIF_F_HW_VLAN_TX;
af19b491 1482 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
135d84a9
MM		 1483 netdev->hw_features |= NETIF_F_LRO;
1484
1485 netdev->features |= netdev->hw_features |
1486 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
1487
af19b491
AKS		 1488 netdev->irq = adapter->msix_entries[0].vector;
1489
af19b491 1490 netif_carrier_off(netdev);
af19b491
AKS		 1491
1492 err = register_netdev(netdev);
1493 if (err) {
1494 dev_err(&pdev->dev, "failed to register net device\n");
1495 return err;
1496 }
1497
1498 return 0;
1499}
1500
1bb09fb9
AKS		 1501static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1502{
1503 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1504 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1505 *pci_using_dac = 1;
1506 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1507 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1508 *pci_using_dac = 0;
1509 else {
1510 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1511 return -EIO;
1512 }
1513
1514 return 0;
1515}
1516
f94bc1e7
SC		 1517static int
1518qlcnic_alloc_msix_entries(struct qlcnic_adapter *adapter, u16 count)
1519{
1520 adapter->msix_entries = kcalloc(count, sizeof(struct msix_entry),
1521 GFP_KERNEL);
1522
1523 if (adapter->msix_entries)
1524 return 0;
1525
1526 dev_err(&adapter->pdev->dev, "failed allocating msix_entries\n");
1527 return -ENOMEM;
1528}
1529
af19b491
AKS		 1530static int __devinit
1531qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1532{
1533 struct net_device *netdev = NULL;
1534 struct qlcnic_adapter *adapter = NULL;
1535 int err;
af19b491 1536 uint8_t revision_id;
1bb09fb9 1537 uint8_t pci_using_dac;
da48e6c3 1538 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
af19b491
AKS		 1539
1540 err = pci_enable_device(pdev);
1541 if (err)
1542 return err;
1543
1544 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1545 err = -ENODEV;
1546 goto err_out_disable_pdev;
1547 }
1548
1bb09fb9
AKS		 1549 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1550 if (err)
1551 goto err_out_disable_pdev;
1552
af19b491
AKS		 1553 err = pci_request_regions(pdev, qlcnic_driver_name);
1554 if (err)
1555 goto err_out_disable_pdev;
1556
1557 pci_set_master(pdev);
451724c8 1558 pci_enable_pcie_error_reporting(pdev);
af19b491
AKS		 1559
1560 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1561 if (!netdev) {
1562 dev_err(&pdev->dev, "failed to allocate net_device\n");
1563 err = -ENOMEM;
1564 goto err_out_free_res;
1565 }
1566
1567 SET_NETDEV_DEV(netdev, &pdev->dev);
1568
1569 adapter = netdev_priv(netdev);
1570 adapter->netdev = netdev;
1571 adapter->pdev = pdev;
af19b491 1572
b1fc6d3c
AC		 1573 if (qlcnic_alloc_adapter_resources(adapter))
1574 goto err_out_free_netdev;
1575
1576 adapter->dev_rst_time = jiffies;
af19b491 1577 revision_id = pdev->revision;
b1fc6d3c 1578 adapter->ahw->revision_id = revision_id;
af19b491 1579
b1fc6d3c
AC		 1580 rwlock_init(&adapter->ahw->crb_lock);
1581 mutex_init(&adapter->ahw->mem_lock);
af19b491
AKS		 1582
1583 spin_lock_init(&adapter->tx_clean_lock);
1584 INIT_LIST_HEAD(&adapter->mac_list);
1585
1586 err = qlcnic_setup_pci_map(adapter);
1587 if (err)
b1fc6d3c 1588 goto err_out_free_hw;
af19b491
AKS		 1589
1590 /* This will be reset for mezz cards */
b1fc6d3c 1591 adapter->portnum = adapter->ahw->pci_func;
af19b491
AKS		 1592
1593 err = qlcnic_get_board_info(adapter);
1594 if (err) {
1595 dev_err(&pdev->dev, "Error getting board config info.\n");
1596 goto err_out_iounmap;
1597 }
1598
8cfdce08
SC		 1599 err = qlcnic_setup_idc_param(adapter);
1600 if (err)
b3a24649 1601 goto err_out_iounmap;
af19b491 1602
1dc0f3c5 1603 adapter->flags |= QLCNIC_NEED_FLR;
b0044bcf 1604
9f26f547 1605 err = adapter->nic_ops->start_firmware(adapter);
a7fc948f
AKS		 1606 if (err) {
1607 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
af19b491 1608 goto err_out_decr_ref;
a7fc948f 1609 }
af19b491 1610
602ca6f0
SV		 1611 /* Get FW dump template and store it */
1612 if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC)
1613 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1614 dev_info(&pdev->dev,
1615 "Supports FW dump capability\n");
1616
da48e6c3
RB		 1617 if (qlcnic_read_mac_addr(adapter))
1618 dev_warn(&pdev->dev, "failed to read mac addr\n");
1619
1620 if (adapter->portnum == 0) {
1621 get_brd_name(adapter, brd_name);
1622
1623 pr_info("%s: %s Board Chip rev 0x%x\n",
1624 module_name(THIS_MODULE),
b1fc6d3c 1625 brd_name, adapter->ahw->revision_id);
da48e6c3
RB		 1626 }
1627
af19b491
AKS		 1628 qlcnic_clear_stats(adapter);
1629
f94bc1e7
SC		 1630 err = qlcnic_alloc_msix_entries(adapter, adapter->max_rx_ques);
1631 if (err)
1632 goto err_out_decr_ref;
1633
af19b491
AKS		 1634 qlcnic_setup_intr(adapter);
1635
1bb09fb9 1636 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
af19b491
AKS		 1637 if (err)
1638 goto err_out_disable_msi;
1639
1640 pci_set_drvdata(pdev, adapter);
1641
1642 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1643
b1fc6d3c 1644 switch (adapter->ahw->port_type) {
af19b491
AKS		 1645 case QLCNIC_GBE:
1646 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1647 adapter->netdev->name);
1648 break;
1649 case QLCNIC_XGBE:
1650 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1651 adapter->netdev->name);
1652 break;
1653 }
1654
b5e5492c 1655 qlcnic_alloc_lb_filters_mem(adapter);
af19b491
AKS		 1656 qlcnic_create_diag_entries(adapter);
1657
1658 return 0;
1659
1660err_out_disable_msi:
1661 qlcnic_teardown_intr(adapter);
f94bc1e7 1662 kfree(adapter->msix_entries);
af19b491
AKS		 1663
1664err_out_decr_ref:
21854f02 1665 qlcnic_clr_all_drv_state(adapter, 0);
af19b491
AKS		 1666
1667err_out_iounmap:
1668 qlcnic_cleanup_pci_map(adapter);
1669
b1fc6d3c
AC		 1670err_out_free_hw:
1671 qlcnic_free_adapter_resources(adapter);
1672
af19b491
AKS		 1673err_out_free_netdev:
1674 free_netdev(netdev);
1675
1676err_out_free_res:
1677 pci_release_regions(pdev);
1678
1679err_out_disable_pdev:
1680 pci_set_drvdata(pdev, NULL);
1681 pci_disable_device(pdev);
1682 return err;
1683}
1684
1685static void __devexit qlcnic_remove(struct pci_dev *pdev)
1686{
1687 struct qlcnic_adapter *adapter;
1688 struct net_device *netdev;
1689
1690 adapter = pci_get_drvdata(pdev);
1691 if (adapter == NULL)
1692 return;
1693
1694 netdev = adapter->netdev;
1695
1696 qlcnic_cancel_fw_work(adapter);
1697
1698 unregister_netdev(netdev);
1699
af19b491
AKS		 1700 qlcnic_detach(adapter);
1701
2e9d722d
AC		 1702 if (adapter->npars != NULL)
1703 kfree(adapter->npars);
1704 if (adapter->eswitch != NULL)
1705 kfree(adapter->eswitch);
1706
21854f02 1707 qlcnic_clr_all_drv_state(adapter, 0);
af19b491
AKS		 1708
1709 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1710
b5e5492c
AKS		 1711 qlcnic_free_lb_filters_mem(adapter);
1712
af19b491 1713 qlcnic_teardown_intr(adapter);
f94bc1e7 1714 kfree(adapter->msix_entries);
af19b491
AKS		 1715
1716 qlcnic_remove_diag_entries(adapter);
1717
1718 qlcnic_cleanup_pci_map(adapter);
1719
1720 qlcnic_release_firmware(adapter);
1721
451724c8 1722 pci_disable_pcie_error_reporting(pdev);
af19b491
AKS		 1723 pci_release_regions(pdev);
1724 pci_disable_device(pdev);
1725 pci_set_drvdata(pdev, NULL);
1726
b1fc6d3c 1727 qlcnic_free_adapter_resources(adapter);
af19b491
AKS		 1728 free_netdev(netdev);
1729}
1730static int __qlcnic_shutdown(struct pci_dev *pdev)
1731{
1732 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1733 struct net_device *netdev = adapter->netdev;
1734 int retval;
1735
1736 netif_device_detach(netdev);
1737
1738 qlcnic_cancel_fw_work(adapter);
1739
1740 if (netif_running(netdev))
1741 qlcnic_down(adapter, netdev);
1742
21854f02 1743 qlcnic_clr_all_drv_state(adapter, 0);
af19b491
AKS		 1744
1745 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1746
1747 retval = pci_save_state(pdev);
1748 if (retval)
1749 return retval;
1750
1751 if (qlcnic_wol_supported(adapter)) {
1752 pci_enable_wake(pdev, PCI_D3cold, 1);
1753 pci_enable_wake(pdev, PCI_D3hot, 1);
1754 }
1755
1756 return 0;
1757}
1758
1759static void qlcnic_shutdown(struct pci_dev *pdev)
1760{
1761 if (__qlcnic_shutdown(pdev))
1762 return;
1763
1764 pci_disable_device(pdev);
1765}
1766
1767#ifdef CONFIG_PM
1768static int
1769qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1770{
1771 int retval;
1772
1773 retval = __qlcnic_shutdown(pdev);
1774 if (retval)
1775 return retval;
1776
1777 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1778 return 0;
1779}
1780
1781static int
1782qlcnic_resume(struct pci_dev *pdev)
1783{
1784 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1785 struct net_device *netdev = adapter->netdev;
1786 int err;
1787
1788 err = pci_enable_device(pdev);
1789 if (err)
1790 return err;
1791
1792 pci_set_power_state(pdev, PCI_D0);
1793 pci_set_master(pdev);
1794 pci_restore_state(pdev);
1795
9f26f547 1796 err = adapter->nic_ops->start_firmware(adapter);
af19b491
AKS		 1797 if (err) {
1798 dev_err(&pdev->dev, "failed to start firmware\n");
1799 return err;
1800 }
1801
1802 if (netif_running(netdev)) {
af19b491
AKS		 1803 err = qlcnic_up(adapter, netdev);
1804 if (err)
52486a3a 1805 goto done;
af19b491 1806
aec1e845 1807 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
af19b491 1808 }
52486a3a 1809done:
af19b491
AKS		 1810 netif_device_attach(netdev);
1811 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1812 return 0;
af19b491
AKS		 1813}
1814#endif
1815
1816static int qlcnic_open(struct net_device *netdev)
1817{
1818 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1819 int err;
1820
af19b491
AKS		 1821 err = qlcnic_attach(adapter);
1822 if (err)
1823 return err;
1824
1825 err = __qlcnic_up(adapter, netdev);
1826 if (err)
1827 goto err_out;
1828
1829 netif_start_queue(netdev);
1830
1831 return 0;
1832
1833err_out:
1834 qlcnic_detach(adapter);
1835 return err;
1836}
1837
1838/*
1839 * qlcnic_close - Disables a network interface entry point
1840 */
1841static int qlcnic_close(struct net_device *netdev)
1842{
1843 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1844
1845 __qlcnic_down(adapter, netdev);
1846 return 0;
1847}
1848
b5e5492c
AKS		 1849static void
1850qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1851{
1852 void *head;
1853 int i;
1854
1855 if (!qlcnic_mac_learn)
1856 return;
1857
1858 spin_lock_init(&adapter->mac_learn_lock);
1859
1860 head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1861 GFP_KERNEL);
1862 if (!head)
1863 return;
1864
1865 adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
43d620c8 1866 adapter->fhash.fhead = head;
b5e5492c
AKS		 1867
1868 for (i = 0; i < adapter->fhash.fmax; i++)
1869 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1870}
1871
1872static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1873{
1874 if (adapter->fhash.fmax && adapter->fhash.fhead)
1875 kfree(adapter->fhash.fhead);
1876
1877 adapter->fhash.fhead = NULL;
1878 adapter->fhash.fmax = 0;
1879}
1880
1881static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
7e56cac4 1882 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
b5e5492c
AKS		 1883{
1884 struct cmd_desc_type0 *hwdesc;
1885 struct qlcnic_nic_req *req;
1886 struct qlcnic_mac_req *mac_req;
7e56cac4 1887 struct qlcnic_vlan_req *vlan_req;
b5e5492c
AKS		 1888 u32 producer;
1889 u64 word;
1890
1891 producer = tx_ring->producer;
1892 hwdesc = &tx_ring->desc_head[tx_ring->producer];
1893
1894 req = (struct qlcnic_nic_req *)hwdesc;
1895 memset(req, 0, sizeof(struct qlcnic_nic_req));
1896 req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1897
1898 word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1899 req->req_hdr = cpu_to_le64(word);
1900
1901 mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
03c5d770 1902 mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
b5e5492c
AKS		 1903 memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1904
7e56cac4
SC		 1905 vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1906 vlan_req->vlan_id = vlan_id;
03c5d770 1907
b5e5492c 1908 tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
036d61f0 1909 smp_mb();
b5e5492c
AKS		 1910}
1911
1912#define QLCNIC_MAC_HASH(MAC)\
1913 ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1914
1915static void
1916qlcnic_send_filter(struct qlcnic_adapter *adapter,
1917 struct qlcnic_host_tx_ring *tx_ring,
1918 struct cmd_desc_type0 *first_desc,
1919 struct sk_buff *skb)
1920{
1921 struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1922 struct qlcnic_filter *fil, *tmp_fil;
1923 struct hlist_node *tmp_hnode, *n;
1924 struct hlist_head *head;
1925 u64 src_addr = 0;
7e56cac4 1926 __le16 vlan_id = 0;
b5e5492c
AKS		 1927 u8 hindex;
1928
1929 if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1930 return;
1931
1932 if (adapter->fhash.fnum >= adapter->fhash.fmax)
1933 return;
1934
03c5d770
AKS		 1935 /* Only NPAR capable devices support vlan based learning*/
1936 if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1937 vlan_id = first_desc->vlan_TCI;
b5e5492c
AKS		 1938 memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1939 hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1940 head = &(adapter->fhash.fhead[hindex]);
1941
1942 hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
03c5d770
AKS		 1943 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1944 tmp_fil->vlan_id == vlan_id) {
e5edb7b1 1945
1946 if (jiffies >
1947 (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1948 qlcnic_change_filter(adapter, src_addr, vlan_id,
1949 tx_ring);
b5e5492c
AKS		 1950 tmp_fil->ftime = jiffies;
1951 return;
1952 }
1953 }
1954
1955 fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1956 if (!fil)
1957 return;
1958
03c5d770 1959 qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
b5e5492c
AKS		 1960
1961 fil->ftime = jiffies;
03c5d770 1962 fil->vlan_id = vlan_id;
b5e5492c
AKS		 1963 memcpy(fil->faddr, &src_addr, ETH_ALEN);
1964 spin_lock(&adapter->mac_learn_lock);
1965 hlist_add_head(&(fil->fnode), head);
1966 adapter->fhash.fnum++;
1967 spin_unlock(&adapter->mac_learn_lock);
1968}
1969
036d61f0
AC		 1970static int
1971qlcnic_tx_pkt(struct qlcnic_adapter *adapter,
af19b491
AKS		 1972 struct cmd_desc_type0 *first_desc,
1973 struct sk_buff *skb)
1974{
036d61f0
AC		 1975 u8 opcode = 0, hdr_len = 0;
1976 u16 flags = 0, vlan_tci = 0;
1977 int copied, offset, copy_len;
af19b491
AKS		 1978 struct cmd_desc_type0 *hwdesc;
1979 struct vlan_ethhdr *vh;
036d61f0
AC		 1980 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1981 u16 protocol = ntohs(skb->protocol);
2e9d722d 1982 u32 producer = tx_ring->producer;
036d61f0
AC		 1983
1984 if (protocol == ETH_P_8021Q) {
1985 vh = (struct vlan_ethhdr *)skb->data;
1986 flags = FLAGS_VLAN_TAGGED;
1987 vlan_tci = vh->h_vlan_TCI;
1988 } else if (vlan_tx_tag_present(skb)) {
1989 flags = FLAGS_VLAN_OOB;
1990 vlan_tci = vlan_tx_tag_get(skb);
1991 }
1992 if (unlikely(adapter->pvid)) {
1993 if (vlan_tci && !(adapter->flags & QLCNIC_TAGGING_ENABLED))
1994 return -EIO;
1995 if (vlan_tci && (adapter->flags & QLCNIC_TAGGING_ENABLED))
1996 goto set_flags;
1997
1998 flags = FLAGS_VLAN_OOB;
1999 vlan_tci = adapter->pvid;
2000 }
2001set_flags:
2002 qlcnic_set_tx_vlan_tci(first_desc, vlan_tci);
2003 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
af19b491 2004
2e9d722d
AC		 2005 if (*(skb->data) & BIT_0) {
2006 flags |= BIT_0;
2007 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
2008 }
036d61f0
AC		 2009 opcode = TX_ETHER_PKT;
2010 if ((adapter->netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
af19b491
AKS		 2011 skb_shinfo(skb)->gso_size > 0) {
2012
2013 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
2014
2015 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
2016 first_desc->total_hdr_length = hdr_len;
036d61f0
AC		 2017
2018 opcode = (protocol == ETH_P_IPV6) ? TX_TCP_LSO6 : TX_TCP_LSO;
2019
2020 /* For LSO, we need to copy the MAC/IP/TCP headers into
2021 * the descriptor ring */
2022 copied = 0;
2023 offset = 2;
2024
2025 if (flags & FLAGS_VLAN_OOB) {
af19b491
AKS		 2026 first_desc->total_hdr_length += VLAN_HLEN;
2027 first_desc->tcp_hdr_offset = VLAN_HLEN;
2028 first_desc->ip_hdr_offset = VLAN_HLEN;
2029 /* Only in case of TSO on vlan device */
2030 flags |= FLAGS_VLAN_TAGGED;
036d61f0
AC		 2031
2032 /* Create a TSO vlan header template for firmware */
2033
2034 hwdesc = &tx_ring->desc_head[producer];
2035 tx_ring->cmd_buf_arr[producer].skb = NULL;
2036
2037 copy_len = min((int)sizeof(struct cmd_desc_type0) -
2038 offset, hdr_len + VLAN_HLEN);
2039
2040 vh = (struct vlan_ethhdr *)((char *) hwdesc + 2);
2041 skb_copy_from_linear_data(skb, vh, 12);
2042 vh->h_vlan_proto = htons(ETH_P_8021Q);
2043 vh->h_vlan_TCI = htons(vlan_tci);
2044
2045 skb_copy_from_linear_data_offset(skb, 12,
2046 (char *)vh + 16, copy_len - 16);
2047
2048 copied = copy_len - VLAN_HLEN;
2049 offset = 0;
2050
2051 producer = get_next_index(producer, tx_ring->num_desc);
af19b491
AKS		 2052 }
2053
036d61f0
AC		 2054 while (copied < hdr_len) {
2055
2056 copy_len = min((int)sizeof(struct cmd_desc_type0) -
2057 offset, (hdr_len - copied));
2058
2059 hwdesc = &tx_ring->desc_head[producer];
2060 tx_ring->cmd_buf_arr[producer].skb = NULL;
2061
2062 skb_copy_from_linear_data_offset(skb, copied,
2063 (char *) hwdesc + offset, copy_len);
2064
2065 copied += copy_len;
2066 offset = 0;
2067
2068 producer = get_next_index(producer, tx_ring->num_desc);
2069 }
2070
2071 tx_ring->producer = producer;
2072 smp_mb();
2073 adapter->stats.lso_frames++;
af19b491
AKS		 2074
2075 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
2076 u8 l4proto;
2077
036d61f0 2078 if (protocol == ETH_P_IP) {
af19b491
AKS		 2079 l4proto = ip_hdr(skb)->protocol;
2080
2081 if (l4proto == IPPROTO_TCP)
2082 opcode = TX_TCP_PKT;
2083 else if (l4proto == IPPROTO_UDP)
2084 opcode = TX_UDP_PKT;
036d61f0 2085 } else if (protocol == ETH_P_IPV6) {
af19b491
AKS		 2086 l4proto = ipv6_hdr(skb)->nexthdr;
2087
2088 if (l4proto == IPPROTO_TCP)
2089 opcode = TX_TCPV6_PKT;
2090 else if (l4proto == IPPROTO_UDP)
2091 opcode = TX_UDPV6_PKT;
2092 }
2093 }
af19b491
AKS		 2094 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
2095 first_desc->ip_hdr_offset += skb_network_offset(skb);
2096 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2097
036d61f0 2098 return 0;
af19b491
AKS		 2099}
2100
2101static int
2102qlcnic_map_tx_skb(struct pci_dev *pdev,
2103 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2104{
2105 struct qlcnic_skb_frag *nf;
2106 struct skb_frag_struct *frag;
2107 int i, nr_frags;
2108 dma_addr_t map;
2109
2110 nr_frags = skb_shinfo(skb)->nr_frags;
2111 nf = &pbuf->frag_array[0];
2112
2113 map = pci_map_single(pdev, skb->data,
2114 skb_headlen(skb), PCI_DMA_TODEVICE);
2115 if (pci_dma_mapping_error(pdev, map))
2116 goto out_err;
2117
2118 nf->dma = map;
2119 nf->length = skb_headlen(skb);
2120
2121 for (i = 0; i < nr_frags; i++) {
2122 frag = &skb_shinfo(skb)->frags[i];
2123 nf = &pbuf->frag_array[i+1];
2124
2125 map = pci_map_page(pdev, frag->page, frag->page_offset,
2126 frag->size, PCI_DMA_TODEVICE);
2127 if (pci_dma_mapping_error(pdev, map))
2128 goto unwind;
2129
2130 nf->dma = map;
2131 nf->length = frag->size;
2132 }
2133
2134 return 0;
2135
2136unwind:
2137 while (--i >= 0) {
2138 nf = &pbuf->frag_array[i+1];
2139 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2140 }
2141
2142 nf = &pbuf->frag_array[0];
2143 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2144
2145out_err:
2146 return -ENOMEM;
2147}
2148
036d61f0
AC		 2149static void
2150qlcnic_unmap_buffers(struct pci_dev *pdev, struct sk_buff *skb,
2151 struct qlcnic_cmd_buffer *pbuf)
8cf61f89 2152{
036d61f0
AC		 2153 struct qlcnic_skb_frag *nf = &pbuf->frag_array[0];
2154 int nr_frags = skb_shinfo(skb)->nr_frags;
2155 int i;
8cf61f89 2156
036d61f0
AC		 2157 for (i = 0; i < nr_frags; i++) {
2158 nf = &pbuf->frag_array[i+1];
2159 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
8cf61f89 2160 }
8cf61f89 2161
036d61f0
AC		 2162 nf = &pbuf->frag_array[0];
2163 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
5b446c6a 2164 pbuf->skb = NULL;
8cf61f89
AKS		 2165}
2166
af19b491
AKS		 2167static inline void
2168qlcnic_clear_cmddesc(u64 *desc)
2169{
2170 desc[0] = 0ULL;
2171 desc[2] = 0ULL;
8cf61f89 2172 desc[7] = 0ULL;
af19b491
AKS		 2173}
2174
cdaff185 2175netdev_tx_t
af19b491
AKS		 2176qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2177{
2178 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2179 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2180 struct qlcnic_cmd_buffer *pbuf;
2181 struct qlcnic_skb_frag *buffrag;
2182 struct cmd_desc_type0 *hwdesc, *first_desc;
2183 struct pci_dev *pdev;
dcb50aff 2184 struct ethhdr *phdr;
91a403ca 2185 int delta = 0;
af19b491
AKS		 2186 int i, k;
2187
2188 u32 producer;
036d61f0 2189 int frag_count;
af19b491
AKS		 2190 u32 num_txd = tx_ring->num_desc;
2191
780ab790
AKS		 2192 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2193 netif_stop_queue(netdev);
2194 return NETDEV_TX_BUSY;
2195 }
2196
fe4d434d 2197 if (adapter->flags & QLCNIC_MACSPOOF) {
dcb50aff
RB		 2198 phdr = (struct ethhdr *)skb->data;
2199 if (compare_ether_addr(phdr->h_source,
fe4d434d
SC		 2200 adapter->mac_addr))
2201 goto drop_packet;
2202 }
2203
af19b491 2204 frag_count = skb_shinfo(skb)->nr_frags + 1;
91a403ca
AKS		 2205 /* 14 frags supported for normal packet and
2206 * 32 frags supported for TSO packet
2207 */
2208 if (!skb_is_gso(skb) && frag_count > QLCNIC_MAX_FRAGS_PER_TX) {
2209
2210 for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++)
2211 delta += skb_shinfo(skb)->frags[i].size;
2212
2213 if (!__pskb_pull_tail(skb, delta))
2214 goto drop_packet;
2215
2216 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2217 }
af19b491 2218
ef71ff83 2219 if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
af19b491 2220 netif_stop_queue(netdev);
ef71ff83
RB		 2221 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2222 netif_start_queue(netdev);
2223 else {
2224 adapter->stats.xmit_off++;
2225 return NETDEV_TX_BUSY;
2226 }
af19b491
AKS		 2227 }
2228
2229 producer = tx_ring->producer;
2230 pbuf = &tx_ring->cmd_buf_arr[producer];
2231
2232 pdev = adapter->pdev;
2233
8cf61f89
AKS		 2234 first_desc = hwdesc = &tx_ring->desc_head[producer];
2235 qlcnic_clear_cmddesc((u64 *)hwdesc);
2236
8ae6df97
AKS		 2237 if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2238 adapter->stats.tx_dma_map_error++;
af19b491 2239 goto drop_packet;
8ae6df97 2240 }
af19b491
AKS		 2241
2242 pbuf->skb = skb;
2243 pbuf->frag_count = frag_count;
2244
af19b491
AKS		 2245 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2246 qlcnic_set_tx_port(first_desc, adapter->portnum);
2247
2248 for (i = 0; i < frag_count; i++) {
2249
2250 k = i % 4;
2251
2252 if ((k == 0) && (i > 0)) {
2253 /* move to next desc.*/
2254 producer = get_next_index(producer, num_txd);
2255 hwdesc = &tx_ring->desc_head[producer];
2256 qlcnic_clear_cmddesc((u64 *)hwdesc);
2257 tx_ring->cmd_buf_arr[producer].skb = NULL;
2258 }
2259
2260 buffrag = &pbuf->frag_array[i];
2261
2262 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2263 switch (k) {
2264 case 0:
2265 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2266 break;
2267 case 1:
2268 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2269 break;
2270 case 2:
2271 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2272 break;
2273 case 3:
2274 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2275 break;
2276 }
2277 }
2278
2279 tx_ring->producer = get_next_index(producer, num_txd);
036d61f0 2280 smp_mb();
af19b491 2281
036d61f0
AC		 2282 if (unlikely(qlcnic_tx_pkt(adapter, first_desc, skb)))
2283 goto unwind_buff;
af19b491 2284
b5e5492c
AKS		 2285 if (qlcnic_mac_learn)
2286 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2287
af19b491
AKS		 2288 qlcnic_update_cmd_producer(adapter, tx_ring);
2289
2290 adapter->stats.txbytes += skb->len;
2291 adapter->stats.xmitcalled++;
2292
2293 return NETDEV_TX_OK;
2294
036d61f0
AC		 2295unwind_buff:
2296 qlcnic_unmap_buffers(pdev, skb, pbuf);
af19b491
AKS		 2297drop_packet:
2298 adapter->stats.txdropped++;
2299 dev_kfree_skb_any(skb);
2300 return NETDEV_TX_OK;
2301}
2302
2303static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2304{
2305 struct net_device *netdev = adapter->netdev;
2306 u32 temp, temp_state, temp_val;
2307 int rv = 0;
2308
2309 temp = QLCRD32(adapter, CRB_TEMP_STATE);
2310
2311 temp_state = qlcnic_get_temp_state(temp);
2312 temp_val = qlcnic_get_temp_val(temp);
2313
2314 if (temp_state == QLCNIC_TEMP_PANIC) {
2315 dev_err(&netdev->dev,
2316 "Device temperature %d degrees C exceeds"
2317 " maximum allowed. Hardware has been shut down.\n",
2318 temp_val);
2319 rv = 1;
2320 } else if (temp_state == QLCNIC_TEMP_WARN) {
2321 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2322 dev_err(&netdev->dev,
2323 "Device temperature %d degrees C "
2324 "exceeds operating range."
2325 " Immediate action needed.\n",
2326 temp_val);
2327 }
2328 } else {
2329 if (adapter->temp == QLCNIC_TEMP_WARN) {
2330 dev_info(&netdev->dev,
2331 "Device temperature is now %d degrees C"
2332 " in normal range.\n", temp_val);
2333 }
2334 }
2335 adapter->temp = temp_state;
2336 return rv;
2337}
2338
2339void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2340{
2341 struct net_device *netdev = adapter->netdev;
2342
b1fc6d3c 2343 if (adapter->ahw->linkup && !linkup) {
69324275 2344 netdev_info(netdev, "NIC Link is down\n");
b1fc6d3c 2345 adapter->ahw->linkup = 0;
af19b491
AKS		 2346 if (netif_running(netdev)) {
2347 netif_carrier_off(netdev);
2348 netif_stop_queue(netdev);
2349 }
b1fc6d3c 2350 } else if (!adapter->ahw->linkup && linkup) {
69324275 2351 netdev_info(netdev, "NIC Link is up\n");
b1fc6d3c 2352 adapter->ahw->linkup = 1;
af19b491
AKS		 2353 if (netif_running(netdev)) {
2354 netif_carrier_on(netdev);
2355 netif_wake_queue(netdev);
2356 }
2357 }
2358}
2359
2360static void qlcnic_tx_timeout(struct net_device *netdev)
2361{
2362 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2363
2364 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2365 return;
2366
2367 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
af19b491
AKS		 2368
2369 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
68bf1c68
AKS		 2370 adapter->need_fw_reset = 1;
2371 else
2372 adapter->reset_context = 1;
af19b491
AKS		 2373}
2374
2375static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2376{
2377 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2378 struct net_device_stats *stats = &netdev->stats;
2379
af19b491
AKS		 2380 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2381 stats->tx_packets = adapter->stats.xmitfinished;
7e382594 2382 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
af19b491
AKS		 2383 stats->tx_bytes = adapter->stats.txbytes;
2384 stats->rx_dropped = adapter->stats.rxdropped;
2385 stats->tx_dropped = adapter->stats.txdropped;
2386
2387 return stats;
2388}
2389
7eb9855d 2390static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
af19b491 2391{
af19b491
AKS		 2392 u32 status;
2393
2394 status = readl(adapter->isr_int_vec);
2395
2396 if (!(status & adapter->int_vec_bit))
2397 return IRQ_NONE;
2398
2399 /* check interrupt state machine, to be sure */
2400 status = readl(adapter->crb_int_state_reg);
2401 if (!ISR_LEGACY_INT_TRIGGERED(status))
2402 return IRQ_NONE;
2403
2404 writel(0xffffffff, adapter->tgt_status_reg);
2405 /* read twice to ensure write is flushed */
2406 readl(adapter->isr_int_vec);
2407 readl(adapter->isr_int_vec);
2408
7eb9855d
AKS		 2409 return IRQ_HANDLED;
2410}
2411
2412static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2413{
2414 struct qlcnic_host_sds_ring *sds_ring = data;
2415 struct qlcnic_adapter *adapter = sds_ring->adapter;
2416
2417 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2418 goto done;
2419 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2420 writel(0xffffffff, adapter->tgt_status_reg);
2421 goto done;
2422 }
2423
2424 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2425 return IRQ_NONE;
2426
2427done:
2428 adapter->diag_cnt++;
2429 qlcnic_enable_int(sds_ring);
2430 return IRQ_HANDLED;
2431}
2432
2433static irqreturn_t qlcnic_intr(int irq, void *data)
2434{
2435 struct qlcnic_host_sds_ring *sds_ring = data;
2436 struct qlcnic_adapter *adapter = sds_ring->adapter;
2437
2438 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2439 return IRQ_NONE;
2440
af19b491
AKS		 2441 napi_schedule(&sds_ring->napi);
2442
2443 return IRQ_HANDLED;
2444}
2445
2446static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2447{
2448 struct qlcnic_host_sds_ring *sds_ring = data;
2449 struct qlcnic_adapter *adapter = sds_ring->adapter;
2450
2451 /* clear interrupt */
2452 writel(0xffffffff, adapter->tgt_status_reg);
2453
2454 napi_schedule(&sds_ring->napi);
2455 return IRQ_HANDLED;
2456}
2457
2458static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2459{
2460 struct qlcnic_host_sds_ring *sds_ring = data;
2461
2462 napi_schedule(&sds_ring->napi);
2463 return IRQ_HANDLED;
2464}
2465
2466static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2467{
2468 u32 sw_consumer, hw_consumer;
2469 int count = 0, i;
2470 struct qlcnic_cmd_buffer *buffer;
2471 struct pci_dev *pdev = adapter->pdev;
2472 struct net_device *netdev = adapter->netdev;
2473 struct qlcnic_skb_frag *frag;
2474 int done;
2475 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2476
2477 if (!spin_trylock(&adapter->tx_clean_lock))
2478 return 1;
2479
2480 sw_consumer = tx_ring->sw_consumer;
2481 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2482
2483 while (sw_consumer != hw_consumer) {
2484 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2485 if (buffer->skb) {
2486 frag = &buffer->frag_array[0];
2487 pci_unmap_single(pdev, frag->dma, frag->length,
2488 PCI_DMA_TODEVICE);
2489 frag->dma = 0ULL;
2490 for (i = 1; i < buffer->frag_count; i++) {
2491 frag++;
2492 pci_unmap_page(pdev, frag->dma, frag->length,
2493 PCI_DMA_TODEVICE);
2494 frag->dma = 0ULL;
2495 }
2496
2497 adapter->stats.xmitfinished++;
2498 dev_kfree_skb_any(buffer->skb);
2499 buffer->skb = NULL;
2500 }
2501
2502 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2503 if (++count >= MAX_STATUS_HANDLE)
2504 break;
2505 }
2506
2507 if (count && netif_running(netdev)) {
2508 tx_ring->sw_consumer = sw_consumer;
2509
2510 smp_mb();
2511
2512 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
af19b491
AKS		 2513 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2514 netif_wake_queue(netdev);
8bfe8b91 2515 adapter->stats.xmit_on++;
af19b491 2516 }
af19b491 2517 }
ef71ff83 2518 adapter->tx_timeo_cnt = 0;
af19b491
AKS		 2519 }
2520 /*
2521 * If everything is freed up to consumer then check if the ring is full
2522 * If the ring is full then check if more needs to be freed and
2523 * schedule the call back again.
2524 *
2525 * This happens when there are 2 CPUs. One could be freeing and the
2526 * other filling it. If the ring is full when we get out of here and
2527 * the card has already interrupted the host then the host can miss the
2528 * interrupt.
2529 *
2530 * There is still a possible race condition and the host could miss an
2531 * interrupt. The card has to take care of this.
2532 */
2533 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2534 done = (sw_consumer == hw_consumer);
2535 spin_unlock(&adapter->tx_clean_lock);
2536
2537 return done;
2538}
2539
2540static int qlcnic_poll(struct napi_struct *napi, int budget)
2541{
2542 struct qlcnic_host_sds_ring *sds_ring =
2543 container_of(napi, struct qlcnic_host_sds_ring, napi);
2544
2545 struct qlcnic_adapter *adapter = sds_ring->adapter;
2546
2547 int tx_complete;
2548 int work_done;
2549
2550 tx_complete = qlcnic_process_cmd_ring(adapter);
2551
2552 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2553
2554 if ((work_done < budget) && tx_complete) {
2555 napi_complete(&sds_ring->napi);
2556 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2557 qlcnic_enable_int(sds_ring);
2558 }
2559
2560 return work_done;
2561}
2562
8f891387 2563static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2564{
2565 struct qlcnic_host_sds_ring *sds_ring =
2566 container_of(napi, struct qlcnic_host_sds_ring, napi);
2567
2568 struct qlcnic_adapter *adapter = sds_ring->adapter;
2569 int work_done;
2570
2571 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2572
2573 if (work_done < budget) {
2574 napi_complete(&sds_ring->napi);
2575 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2576 qlcnic_enable_int(sds_ring);
2577 }
2578
2579 return work_done;
2580}
2581
af19b491
AKS		 2582#ifdef CONFIG_NET_POLL_CONTROLLER
2583static void qlcnic_poll_controller(struct net_device *netdev)
2584{
bf82791e
YL		 2585 int ring;
2586 struct qlcnic_host_sds_ring *sds_ring;
af19b491 2587 struct qlcnic_adapter *adapter = netdev_priv(netdev);
b1fc6d3c 2588 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
bf82791e 2589
af19b491 2590 disable_irq(adapter->irq);
bf82791e
YL		 2591 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2592 sds_ring = &recv_ctx->sds_rings[ring];
2593 qlcnic_intr(adapter->irq, sds_ring);
2594 }
af19b491
AKS		 2595 enable_irq(adapter->irq);
2596}
2597#endif
2598
6df900e9
SC		 2599static void
2600qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2601{
2602 u32 val;
2603
2604 val = adapter->portnum & 0xf;
2605 val |= encoding << 7;
2606 val |= (jiffies - adapter->dev_rst_time) << 8;
2607
2608 QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2609 adapter->dev_rst_time = jiffies;
2610}
2611
ade91f8e
AKS		 2612static int
2613qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
af19b491
AKS		 2614{
2615 u32 val;
2616
2617 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2618 state != QLCNIC_DEV_NEED_QUISCENT);
2619
2620 if (qlcnic_api_lock(adapter))
ade91f8e 2621 return -EIO;
af19b491
AKS		 2622
2623 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2624
2625 if (state == QLCNIC_DEV_NEED_RESET)
6d2a4724 2626 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
af19b491 2627 else if (state == QLCNIC_DEV_NEED_QUISCENT)
6d2a4724 2628 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
af19b491
AKS		 2629
2630 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2631
2632 qlcnic_api_unlock(adapter);
ade91f8e
AKS		 2633
2634 return 0;
af19b491
AKS		 2635}
2636
1b95a839
AKS		 2637static int
2638qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2639{
2640 u32 val;
2641
2642 if (qlcnic_api_lock(adapter))
2643 return -EBUSY;
2644
2645 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2646 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
1b95a839
AKS		 2647 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2648
2649 qlcnic_api_unlock(adapter);
2650
2651 return 0;
2652}
2653
af19b491 2654static void
21854f02 2655qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
af19b491
AKS		 2656{
2657 u32 val;
2658
2659 if (qlcnic_api_lock(adapter))
2660 goto err;
2661
31018e06 2662 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
6d2a4724 2663 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
31018e06 2664 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
af19b491 2665
21854f02
AKS		 2666 if (failed) {
2667 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2668 dev_info(&adapter->pdev->dev,
2669 "Device state set to Failed. Please Reboot\n");
2670 } else if (!(val & 0x11111111))
af19b491
AKS		 2671 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2672
2673 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2674 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
af19b491
AKS		 2675 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2676
2677 qlcnic_api_unlock(adapter);
2678err:
2679 adapter->fw_fail_cnt = 0;
2680 clear_bit(__QLCNIC_START_FW, &adapter->state);
2681 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2682}
2683
f73dfc50 2684/* Grab api lock, before checking state */
af19b491
AKS		 2685static int
2686qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2687{
602ca6f0 2688 int act, state, active_mask;
af19b491
AKS		 2689
2690 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
31018e06 2691 act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
af19b491 2692
602ca6f0
SV		 2693 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2694 active_mask = (~(1 << (adapter->ahw->pci_func * 4)));
2695 act = act & active_mask;
2696 }
2697
af19b491
AKS		 2698 if (((state & 0x11111111) == (act & 0x11111111)) ||
2699 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2700 return 0;
2701 else
2702 return 1;
2703}
2704
96f8118c
SC		 2705static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2706{
2707 u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2708
2709 if (val != QLCNIC_DRV_IDC_VER) {
2710 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2711 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2712 }
2713
2714 return 0;
2715}
2716
af19b491
AKS		 2717static int
2718qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2719{
2720 u32 val, prev_state;
aa5e18c0 2721 u8 dev_init_timeo = adapter->dev_init_timeo;
6d2a4724 2722 u8 portnum = adapter->portnum;
96f8118c 2723 u8 ret;
af19b491 2724
f73dfc50
AKS		 2725 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2726 return 1;
2727
af19b491
AKS		 2728 if (qlcnic_api_lock(adapter))
2729 return -1;
2730
31018e06 2731 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
6d2a4724
AKS		 2732 if (!(val & (1 << (portnum * 4)))) {
2733 QLC_DEV_SET_REF_CNT(val, portnum);
31018e06 2734 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
af19b491
AKS		 2735 }
2736
2737 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
65b5b420 2738 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
af19b491
AKS		 2739
2740 switch (prev_state) {
2741 case QLCNIC_DEV_COLD:
bbd8c6a4 2742 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
96f8118c 2743 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
6df900e9 2744 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2745 qlcnic_api_unlock(adapter);
2746 return 1;
2747
2748 case QLCNIC_DEV_READY:
96f8118c 2749 ret = qlcnic_check_idc_ver(adapter);
af19b491 2750 qlcnic_api_unlock(adapter);
96f8118c 2751 return ret;
af19b491
AKS		 2752
2753 case QLCNIC_DEV_NEED_RESET:
2754 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2755 QLC_DEV_SET_RST_RDY(val, portnum);
af19b491
AKS		 2756 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2757 break;
2758
2759 case QLCNIC_DEV_NEED_QUISCENT:
2760 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2761 QLC_DEV_SET_QSCNT_RDY(val, portnum);
af19b491
AKS		 2762 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2763 break;
2764
2765 case QLCNIC_DEV_FAILED:
a7fc948f 2766 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
af19b491
AKS		 2767 qlcnic_api_unlock(adapter);
2768 return -1;
bbd8c6a4
AKS		 2769
2770 case QLCNIC_DEV_INITIALIZING:
2771 case QLCNIC_DEV_QUISCENT:
2772 break;
af19b491
AKS		 2773 }
2774
2775 qlcnic_api_unlock(adapter);
aa5e18c0
SC		 2776
2777 do {
af19b491 2778 msleep(1000);
a5e463d0
SC		 2779 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2780
2781 if (prev_state == QLCNIC_DEV_QUISCENT)
2782 continue;
2783 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
af19b491 2784
65b5b420
AKS		 2785 if (!dev_init_timeo) {
2786 dev_err(&adapter->pdev->dev,
2787 "Waiting for device to initialize timeout\n");
af19b491 2788 return -1;
65b5b420 2789 }
af19b491
AKS		 2790
2791 if (qlcnic_api_lock(adapter))
2792 return -1;
2793
2794 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2795 QLC_DEV_CLR_RST_QSCNT(val, portnum);
af19b491
AKS		 2796 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2797
96f8118c 2798 ret = qlcnic_check_idc_ver(adapter);
af19b491
AKS		 2799 qlcnic_api_unlock(adapter);
2800
96f8118c 2801 return ret;
af19b491
AKS		 2802}
2803
2804static void
2805qlcnic_fwinit_work(struct work_struct *work)
2806{
2807 struct qlcnic_adapter *adapter = container_of(work,
2808 struct qlcnic_adapter, fw_work.work);
3c4b23b1 2809 u32 dev_state = 0xf;
af19b491 2810
f73dfc50
AKS		 2811 if (qlcnic_api_lock(adapter))
2812 goto err_ret;
af19b491 2813
a5e463d0 2814 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
b8c17620
AKS		 2815 if (dev_state == QLCNIC_DEV_QUISCENT ||
2816 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
a5e463d0
SC		 2817 qlcnic_api_unlock(adapter);
2818 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2819 FW_POLL_DELAY * 2);
2820 return;
2821 }
2822
9f26f547 2823 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
3c4b23b1
AKS		 2824 qlcnic_api_unlock(adapter);
2825 goto wait_npar;
9f26f547
AC		 2826 }
2827
f73dfc50
AKS		 2828 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2829 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2830 adapter->reset_ack_timeo);
2831 goto skip_ack_check;
2832 }
2833
2834 if (!qlcnic_check_drv_state(adapter)) {
2835skip_ack_check:
602ca6f0
SV		 2836 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2837 qlcnic_api_unlock(adapter);
2838 goto wait_npar;
2839 }
2840
f73dfc50 2841 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
a5e463d0 2842
f73dfc50
AKS		 2843 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2844 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2845 QLCNIC_DEV_INITIALIZING);
2846 set_bit(__QLCNIC_START_FW, &adapter->state);
2847 QLCDB(adapter, DRV, "Restarting fw\n");
6df900e9 2848 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2849 }
2850
f73dfc50
AKS		 2851 qlcnic_api_unlock(adapter);
2852
287e38aa
AC		 2853 rtnl_lock();
2854 QLCDB(adapter, DRV, "Take FW dump\n");
2855 qlcnic_dump_fw(adapter);
2856 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2857 rtnl_unlock();
9f26f547 2858 if (!adapter->nic_ops->start_firmware(adapter)) {
af19b491 2859 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
b18971d1 2860 adapter->fw_wait_cnt = 0;
af19b491
AKS		 2861 return;
2862 }
af19b491
AKS		 2863 goto err_ret;
2864 }
2865
f73dfc50 2866 qlcnic_api_unlock(adapter);
aa5e18c0 2867
9f26f547 2868wait_npar:
af19b491 2869 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
f73dfc50 2870 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
65b5b420 2871
af19b491 2872 switch (dev_state) {
3c4b23b1 2873 case QLCNIC_DEV_READY:
9f26f547 2874 if (!adapter->nic_ops->start_firmware(adapter)) {
f73dfc50 2875 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
b18971d1 2876 adapter->fw_wait_cnt = 0;
f73dfc50
AKS		 2877 return;
2878 }
3c4b23b1
AKS		 2879 case QLCNIC_DEV_FAILED:
2880 break;
2881 default:
2882 qlcnic_schedule_work(adapter,
2883 qlcnic_fwinit_work, FW_POLL_DELAY);
2884 return;
af19b491
AKS		 2885 }
2886
2887err_ret:
f73dfc50
AKS		 2888 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2889 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
34ce3626 2890 netif_device_attach(adapter->netdev);
21854f02 2891 qlcnic_clr_all_drv_state(adapter, 0);
af19b491
AKS		 2892}
2893
2894static void
2895qlcnic_detach_work(struct work_struct *work)
2896{
2897 struct qlcnic_adapter *adapter = container_of(work,
2898 struct qlcnic_adapter, fw_work.work);
2899 struct net_device *netdev = adapter->netdev;
2900 u32 status;
2901
2902 netif_device_detach(netdev);
2903
b8c17620
AKS		 2904 /* Dont grab rtnl lock during Quiscent mode */
2905 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2906 if (netif_running(netdev))
2907 __qlcnic_down(adapter, netdev);
2908 } else
2909 qlcnic_down(adapter, netdev);
af19b491 2910
af19b491
AKS		 2911 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2912
2913 if (status & QLCNIC_RCODE_FATAL_ERROR)
2914 goto err_ret;
2915
2916 if (adapter->temp == QLCNIC_TEMP_PANIC)
2917 goto err_ret;
602ca6f0
SV		 2918 /* Dont ack if this instance is the reset owner */
2919 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2920 if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2921 goto err_ret;
2922 }
af19b491
AKS		 2923
2924 adapter->fw_wait_cnt = 0;
2925
2926 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2927
2928 return;
2929
2930err_ret:
65b5b420
AKS		 2931 dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2932 status, adapter->temp);
34ce3626 2933 netif_device_attach(netdev);
21854f02 2934 qlcnic_clr_all_drv_state(adapter, 1);
af19b491
AKS		 2935}
2936
3c4b23b1
AKS		 2937/*Transit NPAR state to NON Operational */
2938static void
2939qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2940{
2941 u32 state;
2942
2943 state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2944 if (state == QLCNIC_DEV_NPAR_NON_OPER)
2945 return;
2946
2947 if (qlcnic_api_lock(adapter))
2948 return;
2949 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2950 qlcnic_api_unlock(adapter);
2951}
2952
f73dfc50 2953/*Transit to RESET state from READY state only */
18f2f616 2954void
af19b491
AKS		 2955qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2956{
2957 u32 state;
2958
cea8975e 2959 adapter->need_fw_reset = 1;
af19b491
AKS		 2960 if (qlcnic_api_lock(adapter))
2961 return;
2962
2963 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2964
f73dfc50 2965 if (state == QLCNIC_DEV_READY) {
af19b491 2966 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
602ca6f0 2967 adapter->flags |= QLCNIC_FW_RESET_OWNER;
65b5b420 2968 QLCDB(adapter, DRV, "NEED_RESET state set\n");
6df900e9 2969 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2970 }
2971
3c4b23b1 2972 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
af19b491
AKS		 2973 qlcnic_api_unlock(adapter);
2974}
2975
9f26f547
AC		 2976/* Transit to NPAR READY state from NPAR NOT READY state */
2977static void
2978qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2979{
9f26f547
AC		 2980 if (qlcnic_api_lock(adapter))
2981 return;
2982
3c4b23b1
AKS		 2983 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2984 QLCDB(adapter, DRV, "NPAR operational state set\n");
9f26f547
AC		 2985
2986 qlcnic_api_unlock(adapter);
2987}
2988
af19b491
AKS		 2989static void
2990qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2991 work_func_t func, int delay)
2992{
451724c8
SC		 2993 if (test_bit(__QLCNIC_AER, &adapter->state))
2994 return;
2995
af19b491 2996 INIT_DELAYED_WORK(&adapter->fw_work, func);
f7ec804a
AKS		 2997 queue_delayed_work(qlcnic_wq, &adapter->fw_work,
2998 round_jiffies_relative(delay));
af19b491
AKS		 2999}
3000
3001static void
3002qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
3003{
3004 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
3005 msleep(10);
3006
3007 cancel_delayed_work_sync(&adapter->fw_work);
3008}
3009
3010static void
3011qlcnic_attach_work(struct work_struct *work)
3012{
3013 struct qlcnic_adapter *adapter = container_of(work,
3014 struct qlcnic_adapter, fw_work.work);
3015 struct net_device *netdev = adapter->netdev;
b18971d1 3016 u32 npar_state;
af19b491 3017
b18971d1
AKS		 3018 if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
3019 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3020 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3021 qlcnic_clr_all_drv_state(adapter, 0);
3022 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3023 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3024 FW_POLL_DELAY);
3025 else
3026 goto attach;
3027 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3028 return;
3029 }
3030attach:
af19b491 3031 if (netif_running(netdev)) {
52486a3a 3032 if (qlcnic_up(adapter, netdev))
af19b491 3033 goto done;
af19b491 3034
aec1e845 3035 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
af19b491
AKS		 3036 }
3037
af19b491 3038done:
34ce3626 3039 netif_device_attach(netdev);
af19b491
AKS		 3040 adapter->fw_fail_cnt = 0;
3041 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1b95a839
AKS		 3042
3043 if (!qlcnic_clr_drv_state(adapter))
3044 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3045 FW_POLL_DELAY);
af19b491
AKS		 3046}
3047
3048static int
3049qlcnic_check_health(struct qlcnic_adapter *adapter)
3050{
4e70812b 3051 u32 state = 0, heartbeat;
af19b491
AKS		 3052 struct net_device *netdev = adapter->netdev;
3053
3054 if (qlcnic_check_temp(adapter))
3055 goto detach;
3056
2372a5f1 3057 if (adapter->need_fw_reset)
af19b491 3058 qlcnic_dev_request_reset(adapter);
af19b491
AKS		 3059
3060 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
b8c17620 3061 if (state == QLCNIC_DEV_NEED_RESET) {
3c4b23b1 3062 qlcnic_set_npar_non_operational(adapter);
af19b491 3063 adapter->need_fw_reset = 1;
b8c17620
AKS		 3064 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3065 goto detach;
af19b491 3066
4e70812b
SC		 3067 heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3068 if (heartbeat != adapter->heartbeat) {
3069 adapter->heartbeat = heartbeat;
af19b491
AKS		 3070 adapter->fw_fail_cnt = 0;
3071 if (adapter->need_fw_reset)
3072 goto detach;
68bf1c68 3073
9ce13ca8 3074 if (adapter->reset_context && auto_fw_reset) {
68bf1c68
AKS		 3075 qlcnic_reset_hw_context(adapter);
3076 adapter->netdev->trans_start = jiffies;
3077 }
3078
af19b491
AKS		 3079 return 0;
3080 }
3081
3082 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3083 return 0;
3084
3085 qlcnic_dev_request_reset(adapter);
3086
9ce13ca8 3087 if (auto_fw_reset)
0df170b6 3088 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
af19b491
AKS		 3089
3090 dev_info(&netdev->dev, "firmware hang detected\n");
3091
3092detach:
3093 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3094 QLCNIC_DEV_NEED_RESET;
3095
9ce13ca8 3096 if (auto_fw_reset &&
65b5b420
AKS		 3097 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
3098
af19b491 3099 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
65b5b420
AKS		 3100 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3101 }
af19b491
AKS		 3102
3103 return 1;
3104}
3105
3106static void
3107qlcnic_fw_poll_work(struct work_struct *work)
3108{
3109 struct qlcnic_adapter *adapter = container_of(work,
3110 struct qlcnic_adapter, fw_work.work);
3111
3112 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3113 goto reschedule;
3114
3115
3116 if (qlcnic_check_health(adapter))
3117 return;
3118
b5e5492c
AKS		 3119 if (adapter->fhash.fnum)
3120 qlcnic_prune_lb_filters(adapter);
3121
af19b491
AKS		 3122reschedule:
3123 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3124}
3125
451724c8
SC		 3126static int qlcnic_is_first_func(struct pci_dev *pdev)
3127{
3128 struct pci_dev *oth_pdev;
3129 int val = pdev->devfn;
3130
3131 while (val-- > 0) {
3132 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3133 (pdev->bus), pdev->bus->number,
3134 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
bfc978fa
AKS		 3135 if (!oth_pdev)
3136 continue;
451724c8 3137
bfc978fa
AKS		 3138 if (oth_pdev->current_state != PCI_D3cold) {
3139 pci_dev_put(oth_pdev);
451724c8 3140 return 0;
bfc978fa
AKS		 3141 }
3142 pci_dev_put(oth_pdev);
451724c8
SC		 3143 }
3144 return 1;
3145}
3146
3147static int qlcnic_attach_func(struct pci_dev *pdev)
3148{
3149 int err, first_func;
3150 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3151 struct net_device *netdev = adapter->netdev;
3152
3153 pdev->error_state = pci_channel_io_normal;
3154
3155 err = pci_enable_device(pdev);
3156 if (err)
3157 return err;
3158
3159 pci_set_power_state(pdev, PCI_D0);
3160 pci_set_master(pdev);
3161 pci_restore_state(pdev);
3162
3163 first_func = qlcnic_is_first_func(pdev);
3164
3165 if (qlcnic_api_lock(adapter))
3166 return -EINVAL;
3167
933fce12 3168 if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
451724c8
SC		 3169 adapter->need_fw_reset = 1;
3170 set_bit(__QLCNIC_START_FW, &adapter->state);
3171 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3172 QLCDB(adapter, DRV, "Restarting fw\n");
3173 }
3174 qlcnic_api_unlock(adapter);
3175
3176 err = adapter->nic_ops->start_firmware(adapter);
3177 if (err)
3178 return err;
3179
3180 qlcnic_clr_drv_state(adapter);
3181 qlcnic_setup_intr(adapter);
3182
3183 if (netif_running(netdev)) {
3184 err = qlcnic_attach(adapter);
3185 if (err) {
21854f02 3186 qlcnic_clr_all_drv_state(adapter, 1);
451724c8
SC		 3187 clear_bit(__QLCNIC_AER, &adapter->state);
3188 netif_device_attach(netdev);
3189 return err;
3190 }
3191
3192 err = qlcnic_up(adapter, netdev);
3193 if (err)
3194 goto done;
3195
aec1e845 3196 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
451724c8
SC		 3197 }
3198 done:
3199 netif_device_attach(netdev);
3200 return err;
3201}
3202
3203static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3204 pci_channel_state_t state)
3205{
3206 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3207 struct net_device *netdev = adapter->netdev;
3208
3209 if (state == pci_channel_io_perm_failure)
3210 return PCI_ERS_RESULT_DISCONNECT;
3211
3212 if (state == pci_channel_io_normal)
3213 return PCI_ERS_RESULT_RECOVERED;
3214
3215 set_bit(__QLCNIC_AER, &adapter->state);
3216 netif_device_detach(netdev);
3217
3218 cancel_delayed_work_sync(&adapter->fw_work);
3219
3220 if (netif_running(netdev))
3221 qlcnic_down(adapter, netdev);
3222
3223 qlcnic_detach(adapter);
3224 qlcnic_teardown_intr(adapter);
3225
3226 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3227
3228 pci_save_state(pdev);
3229 pci_disable_device(pdev);
3230
3231 return PCI_ERS_RESULT_NEED_RESET;
3232}
3233
3234static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3235{
3236 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3237 PCI_ERS_RESULT_RECOVERED;
3238}
3239
3240static void qlcnic_io_resume(struct pci_dev *pdev)
3241{
3242 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3243
3244 pci_cleanup_aer_uncorrect_error_status(pdev);
3245
3246 if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3247 test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3248 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3249 FW_POLL_DELAY);
3250}
3251
87eb743b
AC		 3252static int
3253qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3254{
3255 int err;
3256
3257 err = qlcnic_can_start_firmware(adapter);
3258 if (err)
3259 return err;
3260
78f84e1a
AKS		 3261 err = qlcnic_check_npar_opertional(adapter);
3262 if (err)
3263 return err;
3c4b23b1 3264
174240a8
RB		 3265 err = qlcnic_initialize_nic(adapter);
3266 if (err)
3267 return err;
3268
87eb743b
AC		 3269 qlcnic_check_options(adapter);
3270
7373373d
RB		 3271 err = qlcnic_set_eswitch_port_config(adapter);
3272 if (err)
3273 return err;
3274
87eb743b
AC		 3275 adapter->need_fw_reset = 0;
3276
3277 return err;
3278}
3279
3280static int
3281qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3282{
3283 return -EOPNOTSUPP;
3284}
3285
3286static int
3287qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3288{
3289 return -EOPNOTSUPP;
3290}
3291
af19b491
AKS		 3292static ssize_t
3293qlcnic_store_bridged_mode(struct device *dev,
3294 struct device_attribute *attr, const char *buf, size_t len)
3295{
3296 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3297 unsigned long new;
3298 int ret = -EINVAL;
3299
3300 if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3301 goto err_out;
3302
8a15ad1f 3303 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
af19b491
AKS		 3304 goto err_out;
3305
3306 if (strict_strtoul(buf, 2, &new))
3307 goto err_out;
3308
2e9d722d 3309 if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
af19b491
AKS		 3310 ret = len;
3311
3312err_out:
3313 return ret;
3314}
3315
3316static ssize_t
3317qlcnic_show_bridged_mode(struct device *dev,
3318 struct device_attribute *attr, char *buf)
3319{
3320 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3321 int bridged_mode = 0;
3322
3323 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3324 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3325
3326 return sprintf(buf, "%d\n", bridged_mode);
3327}
3328
3329static struct device_attribute dev_attr_bridged_mode = {
3330 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3331 .show = qlcnic_show_bridged_mode,
3332 .store = qlcnic_store_bridged_mode,
3333};
3334
3335static ssize_t
3336qlcnic_store_diag_mode(struct device *dev,
3337 struct device_attribute *attr, const char *buf, size_t len)
3338{
3339 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3340 unsigned long new;
3341
3342 if (strict_strtoul(buf, 2, &new))
3343 return -EINVAL;
3344
3345 if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3346 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3347
3348 return len;
3349}
3350
3351static ssize_t
3352qlcnic_show_diag_mode(struct device *dev,
3353 struct device_attribute *attr, char *buf)
3354{
3355 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3356
3357 return sprintf(buf, "%d\n",
3358 !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3359}
3360
3361static struct device_attribute dev_attr_diag_mode = {
3362 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3363 .show = qlcnic_show_diag_mode,
3364 .store = qlcnic_store_diag_mode,
3365};
3366
f94bc1e7
SC		 3367int qlcnic_validate_max_rss(struct net_device *netdev, u8 max_hw, u8 val)
3368{
3369 if (!use_msi_x && !use_msi) {
3370 netdev_info(netdev, "no msix or msi support, hence no rss\n");
3371 return -EINVAL;
3372 }
3373
3374 if ((val > max_hw) || (val < 2) || !is_power_of_2(val)) {
3375 netdev_info(netdev, "rss_ring valid range [2 - %x] in "
3376 " powers of 2\n", max_hw);
3377 return -EINVAL;
3378 }
3379 return 0;
3380
3381}
3382
3383int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data)
3384{
3385 struct net_device *netdev = adapter->netdev;
3386 int err = 0;
3387
3388 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
3389 return -EBUSY;
3390
3391 netif_device_detach(netdev);
3392 if (netif_running(netdev))
3393 __qlcnic_down(adapter, netdev);
3394 qlcnic_detach(adapter);
3395 qlcnic_teardown_intr(adapter);
3396
3397 if (qlcnic_enable_msix(adapter, data)) {
3398 netdev_info(netdev, "failed setting max_rss; rss disabled\n");
3399 qlcnic_enable_msi_legacy(adapter);
3400 }
3401
3402 if (netif_running(netdev)) {
3403 err = qlcnic_attach(adapter);
3404 if (err)
3405 goto done;
3406 err = __qlcnic_up(adapter, netdev);
3407 if (err)
3408 goto done;
3409 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3410 }
3411 done:
3412 netif_device_attach(netdev);
3413 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3414 return err;
3415}
3416
af19b491
AKS		 3417static int
3418qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3419 loff_t offset, size_t size)
3420{
897e8c7c
DP		 3421 size_t crb_size = 4;
3422
af19b491
AKS		 3423 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3424 return -EIO;
3425
897e8c7c
DP		 3426 if (offset < QLCNIC_PCI_CRBSPACE) {
3427 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3428 QLCNIC_PCI_CAMQM_END))
3429 crb_size = 8;
3430 else
3431 return -EINVAL;
3432 }
af19b491 3433
897e8c7c
DP		 3434 if ((size != crb_size) || (offset & (crb_size-1)))
3435 return -EINVAL;
af19b491
AKS		 3436
3437 return 0;
3438}
3439
3440static ssize_t
2c3c8bea
CW		 3441qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3442 struct bin_attribute *attr,
af19b491
AKS		 3443 char *buf, loff_t offset, size_t size)
3444{
3445 struct device *dev = container_of(kobj, struct device, kobj);
3446 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3447 u32 data;
897e8c7c 3448 u64 qmdata;
af19b491
AKS		 3449 int ret;
3450
3451 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3452 if (ret != 0)
3453 return ret;
3454
897e8c7c
DP		 3455 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3456 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3457 memcpy(buf, &qmdata, size);
3458 } else {
3459 data = QLCRD32(adapter, offset);
3460 memcpy(buf, &data, size);
3461 }
af19b491
AKS		 3462 return size;
3463}
3464
3465static ssize_t
2c3c8bea
CW		 3466qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3467 struct bin_attribute *attr,
af19b491
AKS		 3468 char *buf, loff_t offset, size_t size)
3469{
3470 struct device *dev = container_of(kobj, struct device, kobj);
3471 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3472 u32 data;
897e8c7c 3473 u64 qmdata;
af19b491
AKS		 3474 int ret;
3475
3476 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3477 if (ret != 0)
3478 return ret;
3479
897e8c7c
DP		 3480 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3481 memcpy(&qmdata, buf, size);
3482 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3483 } else {
3484 memcpy(&data, buf, size);
3485 QLCWR32(adapter, offset, data);
3486 }
af19b491
AKS		 3487 return size;
3488}
3489
3490static int
3491qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3492 loff_t offset, size_t size)
3493{
3494 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3495 return -EIO;
3496
3497 if ((size != 8) || (offset & 0x7))
3498 return -EIO;
3499
3500 return 0;
3501}
3502
3503static ssize_t
2c3c8bea
CW		 3504qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3505 struct bin_attribute *attr,
af19b491
AKS		 3506 char *buf, loff_t offset, size_t size)
3507{
3508 struct device *dev = container_of(kobj, struct device, kobj);
3509 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3510 u64 data;
3511 int ret;
3512
3513 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3514 if (ret != 0)
3515 return ret;
3516
3517 if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3518 return -EIO;
3519
3520 memcpy(buf, &data, size);
3521
3522 return size;
3523}
3524
3525static ssize_t
2c3c8bea
CW		 3526qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3527 struct bin_attribute *attr,
af19b491
AKS		 3528 char *buf, loff_t offset, size_t size)
3529{
3530 struct device *dev = container_of(kobj, struct device, kobj);
3531 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3532 u64 data;
3533 int ret;
3534
3535 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3536 if (ret != 0)
3537 return ret;
3538
3539 memcpy(&data, buf, size);
3540
3541 if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3542 return -EIO;
3543
3544 return size;
3545}
3546
af19b491
AKS		 3547static struct bin_attribute bin_attr_crb = {
3548 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3549 .size = 0,
3550 .read = qlcnic_sysfs_read_crb,
3551 .write = qlcnic_sysfs_write_crb,
3552};
3553
3554static struct bin_attribute bin_attr_mem = {
3555 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3556 .size = 0,
3557 .read = qlcnic_sysfs_read_mem,
3558 .write = qlcnic_sysfs_write_mem,
3559};
3560
cea8975e 3561static int
346fe763
RB		 3562validate_pm_config(struct qlcnic_adapter *adapter,
3563 struct qlcnic_pm_func_cfg *pm_cfg, int count)
3564{
3565
3566 u8 src_pci_func, s_esw_id, d_esw_id;
3567 u8 dest_pci_func;
3568 int i;
3569
3570 for (i = 0; i < count; i++) {
3571 src_pci_func = pm_cfg[i].pci_func;
3572 dest_pci_func = pm_cfg[i].dest_npar;
3573 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3574 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3575 return QL_STATUS_INVALID_PARAM;
3576
3577 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3578 return QL_STATUS_INVALID_PARAM;
3579
3580 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3581 return QL_STATUS_INVALID_PARAM;
3582
346fe763
RB		 3583 s_esw_id = adapter->npars[src_pci_func].phy_port;
3584 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3585
3586 if (s_esw_id != d_esw_id)
3587 return QL_STATUS_INVALID_PARAM;
3588
3589 }
3590 return 0;
3591
3592}
3593
3594static ssize_t
3595qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3596 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3597{
3598 struct device *dev = container_of(kobj, struct device, kobj);
3599 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3600 struct qlcnic_pm_func_cfg *pm_cfg;
3601 u32 id, action, pci_func;
3602 int count, rem, i, ret;
3603
3604 count = size / sizeof(struct qlcnic_pm_func_cfg);
3605 rem = size % sizeof(struct qlcnic_pm_func_cfg);
3606 if (rem)
3607 return QL_STATUS_INVALID_PARAM;
3608
3609 pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3610
3611 ret = validate_pm_config(adapter, pm_cfg, count);
3612 if (ret)
3613 return ret;
3614 for (i = 0; i < count; i++) {
3615 pci_func = pm_cfg[i].pci_func;
4e8acb01 3616 action = !!pm_cfg[i].action;
346fe763
RB		 3617 id = adapter->npars[pci_func].phy_port;
3618 ret = qlcnic_config_port_mirroring(adapter, id,
3619 action, pci_func);
3620 if (ret)
3621 return ret;
3622 }
3623
3624 for (i = 0; i < count; i++) {
3625 pci_func = pm_cfg[i].pci_func;
3626 id = adapter->npars[pci_func].phy_port;
4e8acb01 3627 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
346fe763
RB		 3628 adapter->npars[pci_func].dest_npar = id;
3629 }
3630 return size;
3631}
3632
3633static ssize_t
3634qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3635 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3636{
3637 struct device *dev = container_of(kobj, struct device, kobj);
3638 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3639 struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3640 int i;
3641
3642 if (size != sizeof(pm_cfg))
3643 return QL_STATUS_INVALID_PARAM;
3644
3645 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3646 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3647 continue;
3648 pm_cfg[i].action = adapter->npars[i].enable_pm;
3649 pm_cfg[i].dest_npar = 0;
3650 pm_cfg[i].pci_func = i;
3651 }
3652 memcpy(buf, &pm_cfg, size);
3653
3654 return size;
3655}
3656
cea8975e 3657static int
346fe763 3658validate_esw_config(struct qlcnic_adapter *adapter,
4e8acb01 3659 struct qlcnic_esw_func_cfg *esw_cfg, int count)
346fe763 3660{
7613c87b 3661 u32 op_mode;
346fe763
RB		 3662 u8 pci_func;
3663 int i;
7613c87b 3664
b1fc6d3c 3665 op_mode = readl(adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE);
7613c87b 3666
346fe763
RB		 3667 for (i = 0; i < count; i++) {
3668 pci_func = esw_cfg[i].pci_func;
3669 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3670 return QL_STATUS_INVALID_PARAM;
3671
4e8acb01
RB		 3672 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3673 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3674 return QL_STATUS_INVALID_PARAM;
346fe763 3675
4e8acb01
RB		 3676 switch (esw_cfg[i].op_mode) {
3677 case QLCNIC_PORT_DEFAULTS:
7613c87b 3678 if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
7373373d 3679 QLCNIC_NON_PRIV_FUNC) {
091056b2
AKS		 3680 if (esw_cfg[i].mac_anti_spoof != 0)
3681 return QL_STATUS_INVALID_PARAM;
3682 if (esw_cfg[i].mac_override != 1)
3683 return QL_STATUS_INVALID_PARAM;
3684 if (esw_cfg[i].promisc_mode != 1)
3685 return QL_STATUS_INVALID_PARAM;
7373373d 3686 }
4e8acb01
RB		 3687 break;
3688 case QLCNIC_ADD_VLAN:
346fe763
RB		 3689 if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3690 return QL_STATUS_INVALID_PARAM;
4e8acb01
RB		 3691 if (!esw_cfg[i].op_type)
3692 return QL_STATUS_INVALID_PARAM;
3693 break;
3694 case QLCNIC_DEL_VLAN:
4e8acb01
RB		 3695 if (!esw_cfg[i].op_type)
3696 return QL_STATUS_INVALID_PARAM;
3697 break;
3698 default:
346fe763 3699 return QL_STATUS_INVALID_PARAM;
4e8acb01 3700 }
346fe763 3701 }
346fe763
RB		 3702 return 0;
3703}
3704
3705static ssize_t
3706qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3707 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3708{
3709 struct device *dev = container_of(kobj, struct device, kobj);
3710 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3711 struct qlcnic_esw_func_cfg *esw_cfg;
4e8acb01 3712 struct qlcnic_npar_info *npar;
346fe763 3713 int count, rem, i, ret;
0325d69b 3714 u8 pci_func, op_mode = 0;
346fe763
RB		 3715
3716 count = size / sizeof(struct qlcnic_esw_func_cfg);
3717 rem = size % sizeof(struct qlcnic_esw_func_cfg);
3718 if (rem)
3719 return QL_STATUS_INVALID_PARAM;
3720
3721 esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3722 ret = validate_esw_config(adapter, esw_cfg, count);
3723 if (ret)
3724 return ret;
3725
3726 for (i = 0; i < count; i++) {
0325d69b
RB		 3727 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3728 if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3729 return QL_STATUS_INVALID_PARAM;
e9a47700 3730
b1fc6d3c 3731 if (adapter->ahw->pci_func != esw_cfg[i].pci_func)
e9a47700
RB		 3732 continue;
3733
3734 op_mode = esw_cfg[i].op_mode;
3735 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3736 esw_cfg[i].op_mode = op_mode;
b1fc6d3c 3737 esw_cfg[i].pci_func = adapter->ahw->pci_func;
e9a47700
RB		 3738
3739 switch (esw_cfg[i].op_mode) {
3740 case QLCNIC_PORT_DEFAULTS:
3741 qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3742 break;
8cf61f89
AKS		 3743 case QLCNIC_ADD_VLAN:
3744 qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3745 break;
3746 case QLCNIC_DEL_VLAN:
3747 esw_cfg[i].vlan_id = 0;
3748 qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3749 break;
0325d69b 3750 }
346fe763
RB		 3751 }
3752
0325d69b
RB		 3753 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3754 goto out;
e9a47700 3755
346fe763
RB		 3756 for (i = 0; i < count; i++) {
3757 pci_func = esw_cfg[i].pci_func;
4e8acb01
RB		 3758 npar = &adapter->npars[pci_func];
3759 switch (esw_cfg[i].op_mode) {
3760 case QLCNIC_PORT_DEFAULTS:
3761 npar->promisc_mode = esw_cfg[i].promisc_mode;
7373373d 3762 npar->mac_override = esw_cfg[i].mac_override;
4e8acb01
RB		 3763 npar->offload_flags = esw_cfg[i].offload_flags;
3764 npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3765 npar->discard_tagged = esw_cfg[i].discard_tagged;
3766 break;
3767 case QLCNIC_ADD_VLAN:
3768 npar->pvid = esw_cfg[i].vlan_id;
3769 break;
3770 case QLCNIC_DEL_VLAN:
3771 npar->pvid = 0;
3772 break;
3773 }
346fe763 3774 }
0325d69b 3775out:
346fe763
RB		 3776 return size;
3777}
3778
3779static ssize_t
3780qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3781 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3782{
3783 struct device *dev = container_of(kobj, struct device, kobj);
3784 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3785 struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
4e8acb01 3786 u8 i;
346fe763
RB		 3787
3788 if (size != sizeof(esw_cfg))
3789 return QL_STATUS_INVALID_PARAM;
3790
3791 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3792 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3793 continue;
4e8acb01
RB		 3794 esw_cfg[i].pci_func = i;
3795 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3796 return QL_STATUS_INVALID_PARAM;
346fe763
RB		 3797 }
3798 memcpy(buf, &esw_cfg, size);
3799
3800 return size;
3801}
3802
cea8975e 3803static int
346fe763
RB		 3804validate_npar_config(struct qlcnic_adapter *adapter,
3805 struct qlcnic_npar_func_cfg *np_cfg, int count)
3806{
3807 u8 pci_func, i;
3808
3809 for (i = 0; i < count; i++) {
3810 pci_func = np_cfg[i].pci_func;
3811 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3812 return QL_STATUS_INVALID_PARAM;
3813
3814 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3815 return QL_STATUS_INVALID_PARAM;
3816
d12b0d9a
RB		 3817 if (!IS_VALID_BW(np_cfg[i].min_bw) ||
3818 !IS_VALID_BW(np_cfg[i].max_bw))
346fe763
RB		 3819 return QL_STATUS_INVALID_PARAM;
3820 }
3821 return 0;
3822}
3823
3824static ssize_t
3825qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3826 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3827{
3828 struct device *dev = container_of(kobj, struct device, kobj);
3829 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3830 struct qlcnic_info nic_info;
3831 struct qlcnic_npar_func_cfg *np_cfg;
3832 int i, count, rem, ret;
3833 u8 pci_func;
3834
3835 count = size / sizeof(struct qlcnic_npar_func_cfg);
3836 rem = size % sizeof(struct qlcnic_npar_func_cfg);
3837 if (rem)
3838 return QL_STATUS_INVALID_PARAM;
3839
3840 np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3841 ret = validate_npar_config(adapter, np_cfg, count);
3842 if (ret)
3843 return ret;
3844
3845 for (i = 0; i < count ; i++) {
3846 pci_func = np_cfg[i].pci_func;
3847 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3848 if (ret)
3849 return ret;
3850 nic_info.pci_func = pci_func;
3851 nic_info.min_tx_bw = np_cfg[i].min_bw;
3852 nic_info.max_tx_bw = np_cfg[i].max_bw;
3853 ret = qlcnic_set_nic_info(adapter, &nic_info);
3854 if (ret)
3855 return ret;
cea8975e
AC		 3856 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3857 adapter->npars[i].max_bw = nic_info.max_tx_bw;
346fe763
RB		 3858 }
3859
3860 return size;
3861
3862}
3863static ssize_t
3864qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3865 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3866{
3867 struct device *dev = container_of(kobj, struct device, kobj);
3868 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3869 struct qlcnic_info nic_info;
3870 struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3871 int i, ret;
3872
3873 if (size != sizeof(np_cfg))
3874 return QL_STATUS_INVALID_PARAM;
3875
3876 for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3877 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3878 continue;
3879 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3880 if (ret)
3881 return ret;
3882
3883 np_cfg[i].pci_func = i;
a1c0c459 3884 np_cfg[i].op_mode = (u8)nic_info.op_mode;
346fe763
RB		 3885 np_cfg[i].port_num = nic_info.phys_port;
3886 np_cfg[i].fw_capab = nic_info.capabilities;
3887 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3888 np_cfg[i].max_bw = nic_info.max_tx_bw;
3889 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3890 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3891 }
3892 memcpy(buf, &np_cfg, size);
3893 return size;
3894}
3895
b6021212
AKS		 3896static ssize_t
3897qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3898 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3899{
3900 struct device *dev = container_of(kobj, struct device, kobj);
3901 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3902 struct qlcnic_esw_statistics port_stats;
3903 int ret;
3904
3905 if (size != sizeof(struct qlcnic_esw_statistics))
3906 return QL_STATUS_INVALID_PARAM;
3907
3908 if (offset >= QLCNIC_MAX_PCI_FUNC)
3909 return QL_STATUS_INVALID_PARAM;
3910
3911 memset(&port_stats, 0, size);
3912 ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3913 &port_stats.rx);
3914 if (ret)
3915 return ret;
3916
3917 ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3918 &port_stats.tx);
3919 if (ret)
3920 return ret;
3921
3922 memcpy(buf, &port_stats, size);
3923 return size;
3924}
3925
3926static ssize_t
3927qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3928 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3929{
3930 struct device *dev = container_of(kobj, struct device, kobj);
3931 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3932 struct qlcnic_esw_statistics esw_stats;
3933 int ret;
3934
3935 if (size != sizeof(struct qlcnic_esw_statistics))
3936 return QL_STATUS_INVALID_PARAM;
3937
3938 if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3939 return QL_STATUS_INVALID_PARAM;
3940
3941 memset(&esw_stats, 0, size);
3942 ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3943 &esw_stats.rx);
3944 if (ret)
3945 return ret;
3946
3947 ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3948 &esw_stats.tx);
3949 if (ret)
3950 return ret;
3951
3952 memcpy(buf, &esw_stats, size);
3953 return size;
3954}
3955
3956static ssize_t
3957qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3958 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3959{
3960 struct device *dev = container_of(kobj, struct device, kobj);
3961 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3962 int ret;
3963
3964 if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3965 return QL_STATUS_INVALID_PARAM;
3966
3967 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3968 QLCNIC_QUERY_RX_COUNTER);
3969 if (ret)
3970 return ret;
3971
3972 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3973 QLCNIC_QUERY_TX_COUNTER);
3974 if (ret)
3975 return ret;
3976
3977 return size;
3978}
3979
3980static ssize_t
3981qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3982 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3983{
3984
3985 struct device *dev = container_of(kobj, struct device, kobj);
3986 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3987 int ret;
3988
3989 if (offset >= QLCNIC_MAX_PCI_FUNC)
3990 return QL_STATUS_INVALID_PARAM;
3991
3992 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3993 QLCNIC_QUERY_RX_COUNTER);
3994 if (ret)
3995 return ret;
3996
3997 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3998 QLCNIC_QUERY_TX_COUNTER);
3999 if (ret)
4000 return ret;
4001
4002 return size;
4003}
4004
346fe763
RB		 4005static ssize_t
4006qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
4007 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
4008{
4009 struct device *dev = container_of(kobj, struct device, kobj);
4010 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
4011 struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
e88db3bd 4012 struct qlcnic_pci_info *pci_info;
346fe763
RB		 4013 int i, ret;
4014
4015 if (size != sizeof(pci_cfg))
4016 return QL_STATUS_INVALID_PARAM;
4017
e88db3bd
DC		 4018 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
4019 if (!pci_info)
4020 return -ENOMEM;
4021
346fe763 4022 ret = qlcnic_get_pci_info(adapter, pci_info);
e88db3bd
DC		 4023 if (ret) {
4024 kfree(pci_info);
346fe763 4025 return ret;
e88db3bd 4026 }
346fe763
RB		 4027
4028 for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
4029 pci_cfg[i].pci_func = pci_info[i].id;
4030 pci_cfg[i].func_type = pci_info[i].type;
4031 pci_cfg[i].port_num = pci_info[i].default_port;
4032 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
4033 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
4034 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
4035 }
4036 memcpy(buf, &pci_cfg, size);
e88db3bd 4037 kfree(pci_info);
346fe763 4038 return size;
346fe763
RB		 4039}
4040static struct bin_attribute bin_attr_npar_config = {
4041 .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
4042 .size = 0,
4043 .read = qlcnic_sysfs_read_npar_config,
4044 .write = qlcnic_sysfs_write_npar_config,
4045};
4046
4047static struct bin_attribute bin_attr_pci_config = {
4048 .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
4049 .size = 0,
4050 .read = qlcnic_sysfs_read_pci_config,
4051 .write = NULL,
4052};
4053
b6021212
AKS		 4054static struct bin_attribute bin_attr_port_stats = {
4055 .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
4056 .size = 0,
4057 .read = qlcnic_sysfs_get_port_stats,
4058 .write = qlcnic_sysfs_clear_port_stats,
4059};
4060
4061static struct bin_attribute bin_attr_esw_stats = {
4062 .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
4063 .size = 0,
4064 .read = qlcnic_sysfs_get_esw_stats,
4065 .write = qlcnic_sysfs_clear_esw_stats,
4066};
4067
346fe763
RB		 4068static struct bin_attribute bin_attr_esw_config = {
4069 .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
4070 .size = 0,
4071 .read = qlcnic_sysfs_read_esw_config,
4072 .write = qlcnic_sysfs_write_esw_config,
4073};
4074
4075static struct bin_attribute bin_attr_pm_config = {
4076 .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
4077 .size = 0,
4078 .read = qlcnic_sysfs_read_pm_config,
4079 .write = qlcnic_sysfs_write_pm_config,
4080};
4081
af19b491
AKS		 4082static void
4083qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
4084{
4085 struct device *dev = &adapter->pdev->dev;
4086
4087 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
4088 if (device_create_file(dev, &dev_attr_bridged_mode))
4089 dev_warn(dev,
4090 "failed to create bridged_mode sysfs entry\n");
4091}
4092
4093static void
4094qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
4095{
4096 struct device *dev = &adapter->pdev->dev;
4097
4098 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
4099 device_remove_file(dev, &dev_attr_bridged_mode);
4100}
4101
4102static void
4103qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
4104{
4105 struct device *dev = &adapter->pdev->dev;
4106
b6021212
AKS		 4107 if (device_create_bin_file(dev, &bin_attr_port_stats))
4108 dev_info(dev, "failed to create port stats sysfs entry");
4109
132ff00a
AC		 4110 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4111 return;
af19b491
AKS		 4112 if (device_create_file(dev, &dev_attr_diag_mode))
4113 dev_info(dev, "failed to create diag_mode sysfs entry\n");
4114 if (device_create_bin_file(dev, &bin_attr_crb))
4115 dev_info(dev, "failed to create crb sysfs entry\n");
4116 if (device_create_bin_file(dev, &bin_attr_mem))
4117 dev_info(dev, "failed to create mem sysfs entry\n");
53478fef
SC		 4118 if (device_create_bin_file(dev, &bin_attr_pci_config))
4119 dev_info(dev, "failed to create pci config sysfs entry");
4e8acb01
RB		 4120 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4121 return;
4122 if (device_create_bin_file(dev, &bin_attr_esw_config))
4123 dev_info(dev, "failed to create esw config sysfs entry");
4124 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
346fe763 4125 return;
346fe763
RB		 4126 if (device_create_bin_file(dev, &bin_attr_npar_config))
4127 dev_info(dev, "failed to create npar config sysfs entry");
346fe763
RB		 4128 if (device_create_bin_file(dev, &bin_attr_pm_config))
4129 dev_info(dev, "failed to create pm config sysfs entry");
b6021212
AKS		 4130 if (device_create_bin_file(dev, &bin_attr_esw_stats))
4131 dev_info(dev, "failed to create eswitch stats sysfs entry");
af19b491
AKS		 4132}
4133
af19b491
AKS		 4134static void
4135qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
4136{
4137 struct device *dev = &adapter->pdev->dev;
4138
b6021212
AKS		 4139 device_remove_bin_file(dev, &bin_attr_port_stats);
4140
132ff00a
AC		 4141 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4142 return;
af19b491
AKS		 4143 device_remove_file(dev, &dev_attr_diag_mode);
4144 device_remove_bin_file(dev, &bin_attr_crb);
4145 device_remove_bin_file(dev, &bin_attr_mem);
53478fef 4146 device_remove_bin_file(dev, &bin_attr_pci_config);
4e8acb01
RB		 4147 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4148 return;
4149 device_remove_bin_file(dev, &bin_attr_esw_config);
4150 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
346fe763 4151 return;
346fe763 4152 device_remove_bin_file(dev, &bin_attr_npar_config);
346fe763 4153 device_remove_bin_file(dev, &bin_attr_pm_config);
b6021212 4154 device_remove_bin_file(dev, &bin_attr_esw_stats);
af19b491
AKS		 4155}
4156
4157#ifdef CONFIG_INET
4158
4159#define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4160
af19b491 4161static void
aec1e845
AKS		 4162qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4163 struct net_device *dev, unsigned long event)
af19b491
AKS		 4164{
4165 struct in_device *indev;
af19b491 4166
af19b491
AKS		 4167 indev = in_dev_get(dev);
4168 if (!indev)
4169 return;
4170
4171 for_ifa(indev) {
4172 switch (event) {
4173 case NETDEV_UP:
4174 qlcnic_config_ipaddr(adapter,
4175 ifa->ifa_address, QLCNIC_IP_UP);
4176 break;
4177 case NETDEV_DOWN:
4178 qlcnic_config_ipaddr(adapter,
4179 ifa->ifa_address, QLCNIC_IP_DOWN);
4180 break;
4181 default:
4182 break;
4183 }
4184 } endfor_ifa(indev);
4185
4186 in_dev_put(indev);
af19b491
AKS		 4187}
4188
aec1e845
AKS		 4189static void
4190qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4191{
4192 struct qlcnic_adapter *adapter = netdev_priv(netdev);
4193 struct net_device *dev;
4194 u16 vid;
4195
4196 qlcnic_config_indev_addr(adapter, netdev, event);
4197
b9796a14
AC		 4198 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4199 dev = vlan_find_dev(netdev, vid);
aec1e845
AKS		 4200 if (!dev)
4201 continue;
aec1e845
AKS		 4202 qlcnic_config_indev_addr(adapter, dev, event);
4203 }
4204}
4205
af19b491
AKS		 4206static int qlcnic_netdev_event(struct notifier_block *this,
4207 unsigned long event, void *ptr)
4208{
4209 struct qlcnic_adapter *adapter;
4210 struct net_device *dev = (struct net_device *)ptr;
4211
4212recheck:
4213 if (dev == NULL)
4214 goto done;
4215
4216 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4217 dev = vlan_dev_real_dev(dev);
4218 goto recheck;
4219 }
4220
4221 if (!is_qlcnic_netdev(dev))
4222 goto done;
4223
4224 adapter = netdev_priv(dev);
4225
4226 if (!adapter)
4227 goto done;
4228
8a15ad1f 4229 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
af19b491
AKS		 4230 goto done;
4231
aec1e845 4232 qlcnic_config_indev_addr(adapter, dev, event);
af19b491
AKS		 4233done:
4234 return NOTIFY_DONE;
4235}
4236
4237static int
4238qlcnic_inetaddr_event(struct notifier_block *this,
4239 unsigned long event, void *ptr)
4240{
4241 struct qlcnic_adapter *adapter;
4242 struct net_device *dev;
4243
4244 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4245
4246 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4247
4248recheck:
aec1e845 4249 if (dev == NULL)
af19b491
AKS		 4250 goto done;
4251
4252 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4253 dev = vlan_dev_real_dev(dev);
4254 goto recheck;
4255 }
4256
4257 if (!is_qlcnic_netdev(dev))
4258 goto done;
4259
4260 adapter = netdev_priv(dev);
4261
251a84c9 4262 if (!adapter)
af19b491
AKS		 4263 goto done;
4264
8a15ad1f 4265 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
af19b491
AKS		 4266 goto done;
4267
4268 switch (event) {
4269 case NETDEV_UP:
4270 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4271 break;
4272 case NETDEV_DOWN:
4273 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4274 break;
4275 default:
4276 break;
4277 }
4278
4279done:
4280 return NOTIFY_DONE;
4281}
4282
4283static struct notifier_block qlcnic_netdev_cb = {
4284 .notifier_call = qlcnic_netdev_event,
4285};
4286
4287static struct notifier_block qlcnic_inetaddr_cb = {
4288 .notifier_call = qlcnic_inetaddr_event,
4289};
4290#else
4291static void
aec1e845 4292qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
af19b491
AKS		 4293{ }
4294#endif
451724c8
SC		 4295static struct pci_error_handlers qlcnic_err_handler = {
4296 .error_detected = qlcnic_io_error_detected,
4297 .slot_reset = qlcnic_io_slot_reset,
4298 .resume = qlcnic_io_resume,
4299};
af19b491
AKS		 4300
4301static struct pci_driver qlcnic_driver = {
4302 .name = qlcnic_driver_name,
4303 .id_table = qlcnic_pci_tbl,
4304 .probe = qlcnic_probe,
4305 .remove = __devexit_p(qlcnic_remove),
4306#ifdef CONFIG_PM
4307 .suspend = qlcnic_suspend,
4308 .resume = qlcnic_resume,
4309#endif
451724c8
SC		 4310 .shutdown = qlcnic_shutdown,
4311 .err_handler = &qlcnic_err_handler
4312
af19b491
AKS		 4313};
4314
4315static int __init qlcnic_init_module(void)
4316{
0cf3a14c 4317 int ret;
af19b491
AKS		 4318
4319 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4320
f7ec804a
AKS		 4321 qlcnic_wq = create_singlethread_workqueue("qlcnic");
4322 if (qlcnic_wq == NULL) {
4323 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4324 return -ENOMEM;
4325 }
4326
af19b491
AKS		 4327#ifdef CONFIG_INET
4328 register_netdevice_notifier(&qlcnic_netdev_cb);
4329 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4330#endif
4331
0cf3a14c
AKS		 4332 ret = pci_register_driver(&qlcnic_driver);
4333 if (ret) {
4334#ifdef CONFIG_INET
4335 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4336 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4337#endif
f7ec804a 4338 destroy_workqueue(qlcnic_wq);
0cf3a14c 4339 }
af19b491 4340
0cf3a14c 4341 return ret;
af19b491
AKS		 4342}
4343
4344module_init(qlcnic_init_module);
4345
4346static void __exit qlcnic_exit_module(void)
4347{
4348
4349 pci_unregister_driver(&qlcnic_driver);
4350
4351#ifdef CONFIG_INET
4352 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4353 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4354#endif
f7ec804a 4355 destroy_workqueue(qlcnic_wq);
af19b491
AKS		 4356}
4357
4358module_exit(qlcnic_exit_module);
Linux 6.x block layer and io_uring tree(s)