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qlcnic: Add support to enable/disable FW dump capability
[mirror_ubuntu-artful-kernel.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) {
5f6ec29a
SC		 421 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
422 QLCNIC_DEF_NUM_STS_DESC_RINGS));
f94bc1e7
SC		 423 } else
424 num_msix = 1;
425
426 if (!qlcnic_enable_msix(adapter, num_msix))
427 return;
428
429 qlcnic_enable_msi_legacy(adapter);
430}
431
af19b491
AKS		 432static void
433qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
434{
435 if (adapter->flags & QLCNIC_MSIX_ENABLED)
436 pci_disable_msix(adapter->pdev);
437 if (adapter->flags & QLCNIC_MSI_ENABLED)
438 pci_disable_msi(adapter->pdev);
439}
440
441static void
442qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
443{
b1fc6d3c
AC		 444 if (adapter->ahw->pci_base0 != NULL)
445 iounmap(adapter->ahw->pci_base0);
af19b491
AKS		 446}
447
346fe763
RB		 448static int
449qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
450{
e88db3bd 451 struct qlcnic_pci_info *pci_info;
900853a4 452 int i, ret = 0;
346fe763
RB		 453 u8 pfn;
454
e88db3bd
DC		 455 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
456 if (!pci_info)
457 return -ENOMEM;
458
ca315ac2 459 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
346fe763 460 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
e88db3bd 461 if (!adapter->npars) {
900853a4 462 ret = -ENOMEM;
e88db3bd
DC		 463 goto err_pci_info;
464 }
346fe763 465
ca315ac2 466 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
346fe763
RB		 467 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
468 if (!adapter->eswitch) {
900853a4 469 ret = -ENOMEM;
ca315ac2 470 goto err_npars;
346fe763
RB		 471 }
472
473 ret = qlcnic_get_pci_info(adapter, pci_info);
ca315ac2
DC		 474 if (ret)
475 goto err_eswitch;
346fe763 476
ca315ac2
DC		 477 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
478 pfn = pci_info[i].id;
f848d6dd
SC		 479 if (pfn > QLCNIC_MAX_PCI_FUNC) {
480 ret = QL_STATUS_INVALID_PARAM;
481 goto err_eswitch;
482 }
a1c0c459
SC		 483 adapter->npars[pfn].active = (u8)pci_info[i].active;
484 adapter->npars[pfn].type = (u8)pci_info[i].type;
485 adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
ca315ac2
DC		 486 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
487 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
346fe763
RB		 488 }
489
ca315ac2
DC		 490 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
491 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
492
e88db3bd 493 kfree(pci_info);
ca315ac2
DC		 494 return 0;
495
496err_eswitch:
346fe763
RB		 497 kfree(adapter->eswitch);
498 adapter->eswitch = NULL;
ca315ac2 499err_npars:
346fe763 500 kfree(adapter->npars);
ca315ac2 501 adapter->npars = NULL;
e88db3bd
DC		 502err_pci_info:
503 kfree(pci_info);
346fe763
RB		 504
505 return ret;
506}
507
2e9d722d
AC		 508static int
509qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
510{
511 u8 id;
512 u32 ref_count;
513 int i, ret = 1;
514 u32 data = QLCNIC_MGMT_FUNC;
b1fc6d3c 515 void __iomem *priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
2e9d722d
AC		 516
517 /* If other drivers are not in use set their privilege level */
31018e06 518 ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2e9d722d
AC		 519 ret = qlcnic_api_lock(adapter);
520 if (ret)
521 goto err_lock;
2e9d722d 522
0e33c664
AC		 523 if (qlcnic_config_npars) {
524 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
346fe763 525 id = i;
0e33c664 526 if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
b1fc6d3c 527 id == adapter->ahw->pci_func)
0e33c664
AC		 528 continue;
529 data |= (qlcnic_config_npars &
530 QLC_DEV_SET_DRV(0xf, id));
531 }
532 } else {
533 data = readl(priv_op);
b1fc6d3c 534 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw->pci_func)) |
0e33c664 535 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
b1fc6d3c 536 adapter->ahw->pci_func));
2e9d722d
AC		 537 }
538 writel(data, priv_op);
2e9d722d
AC		 539 qlcnic_api_unlock(adapter);
540err_lock:
541 return ret;
542}
543
0866d96d
AC		 544static void
545qlcnic_check_vf(struct qlcnic_adapter *adapter)
2e9d722d
AC		 546{
547 void __iomem *msix_base_addr;
548 void __iomem *priv_op;
549 u32 func;
550 u32 msix_base;
551 u32 op_mode, priv_level;
552
553 /* Determine FW API version */
b1fc6d3c
AC		 554 adapter->fw_hal_version = readl(adapter->ahw->pci_base0 +
555 QLCNIC_FW_API);
2e9d722d
AC		 556
557 /* Find PCI function number */
558 pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
b1fc6d3c 559 msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
2e9d722d
AC		 560 msix_base = readl(msix_base_addr);
561 func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
b1fc6d3c 562 adapter->ahw->pci_func = func;
2e9d722d
AC		 563
564 /* Determine function privilege level */
b1fc6d3c 565 priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
2e9d722d 566 op_mode = readl(priv_op);
0e33c664 567 if (op_mode == QLC_DEV_DRV_DEFAULT)
2e9d722d 568 priv_level = QLCNIC_MGMT_FUNC;
0e33c664 569 else
b1fc6d3c 570 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
2e9d722d 571
0866d96d 572 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
9f26f547
AC		 573 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
574 dev_info(&adapter->pdev->dev,
575 "HAL Version: %d Non Privileged function\n",
576 adapter->fw_hal_version);
577 adapter->nic_ops = &qlcnic_vf_ops;
0866d96d
AC		 578 } else
579 adapter->nic_ops = &qlcnic_ops;
2e9d722d
AC		 580}
581
af19b491
AKS		 582static int
583qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
584{
585 void __iomem *mem_ptr0 = NULL;
586 resource_size_t mem_base;
587 unsigned long mem_len, pci_len0 = 0;
588
589 struct pci_dev *pdev = adapter->pdev;
af19b491 590
af19b491
AKS		 591 /* remap phys address */
592 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
593 mem_len = pci_resource_len(pdev, 0);
594
595 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
596
597 mem_ptr0 = pci_ioremap_bar(pdev, 0);
598 if (mem_ptr0 == NULL) {
599 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
600 return -EIO;
601 }
602 pci_len0 = mem_len;
603 } else {
604 return -EIO;
605 }
606
607 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
608
b1fc6d3c
AC		 609 adapter->ahw->pci_base0 = mem_ptr0;
610 adapter->ahw->pci_len0 = pci_len0;
af19b491 611
0866d96d 612 qlcnic_check_vf(adapter);
2e9d722d 613
b1fc6d3c
AC		 614 adapter->ahw->ocm_win_crb = qlcnic_get_ioaddr(adapter,
615 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(
616 adapter->ahw->pci_func)));
af19b491
AKS		 617
618 return 0;
619}
620
621static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
622{
623 struct pci_dev *pdev = adapter->pdev;
624 int i, found = 0;
625
626 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
627 if (qlcnic_boards[i].vendor == pdev->vendor &&
628 qlcnic_boards[i].device == pdev->device &&
629 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
630 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
02f6e46f
SC		 631 sprintf(name, "%pM: %s" ,
632 adapter->mac_addr,
633 qlcnic_boards[i].short_name);
af19b491
AKS		 634 found = 1;
635 break;
636 }
637
638 }
639
640 if (!found)
7f9a0c34 641 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
af19b491
AKS		 642}
643
644static void
645qlcnic_check_options(struct qlcnic_adapter *adapter)
646{
647 u32 fw_major, fw_minor, fw_build;
af19b491 648 struct pci_dev *pdev = adapter->pdev;
af19b491
AKS		 649
650 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
651 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
652 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
653
654 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
655
251a84c9
AKS		 656 dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
657 fw_major, fw_minor, fw_build);
b1fc6d3c 658 if (adapter->ahw->port_type == QLCNIC_XGBE) {
90d19005
SC		 659 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
660 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
661 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
662 } else {
663 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
664 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
665 }
666
af19b491 667 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
90d19005
SC		 668 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
669
b1fc6d3c 670 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
af19b491
AKS		 671 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
672 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
90d19005
SC		 673 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
674 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
af19b491
AKS		 675 }
676
677 adapter->msix_supported = !!use_msi_x;
af19b491
AKS		 678
679 adapter->num_txd = MAX_CMD_DESCRIPTORS;
680
251b036a 681 adapter->max_rds_rings = MAX_RDS_RINGS;
af19b491
AKS		 682}
683
174240a8
RB		 684static int
685qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
686{
687 int err;
688 struct qlcnic_info nic_info;
689
b1fc6d3c 690 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
174240a8
RB		 691 if (err)
692 return err;
693
a1c0c459 694 adapter->physical_port = (u8)nic_info.phys_port;
174240a8
RB		 695 adapter->switch_mode = nic_info.switch_mode;
696 adapter->max_tx_ques = nic_info.max_tx_ques;
697 adapter->max_rx_ques = nic_info.max_rx_ques;
698 adapter->capabilities = nic_info.capabilities;
699 adapter->max_mac_filters = nic_info.max_mac_filters;
700 adapter->max_mtu = nic_info.max_mtu;
701
702 if (adapter->capabilities & BIT_6)
703 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
704 else
705 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
706
707 return err;
708}
709
8cf61f89
AKS		 710static void
711qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
712 struct qlcnic_esw_func_cfg *esw_cfg)
713{
714 if (esw_cfg->discard_tagged)
715 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
716 else
717 adapter->flags |= QLCNIC_TAGGING_ENABLED;
718
719 if (esw_cfg->vlan_id)
720 adapter->pvid = esw_cfg->vlan_id;
721 else
722 adapter->pvid = 0;
723}
724
b9796a14
AC		 725static void
726qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
727{
728 struct qlcnic_adapter *adapter = netdev_priv(netdev);
729 set_bit(vid, adapter->vlans);
730}
731
732static void
733qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
734{
735 struct qlcnic_adapter *adapter = netdev_priv(netdev);
736
737 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
738 clear_bit(vid, adapter->vlans);
739}
740
0325d69b
RB		 741static void
742qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
743 struct qlcnic_esw_func_cfg *esw_cfg)
744{
ee07c1a7
RB		 745 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
746 QLCNIC_PROMISC_DISABLED);
7613c87b
RB		 747
748 if (esw_cfg->mac_anti_spoof)
749 adapter->flags |= QLCNIC_MACSPOOF;
fe4d434d 750
7373373d
RB		 751 if (!esw_cfg->mac_override)
752 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
753
ee07c1a7
RB		 754 if (!esw_cfg->promisc_mode)
755 adapter->flags |= QLCNIC_PROMISC_DISABLED;
756
0325d69b
RB		 757 qlcnic_set_netdev_features(adapter, esw_cfg);
758}
759
760static int
761qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
762{
763 struct qlcnic_esw_func_cfg esw_cfg;
764
765 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
766 return 0;
767
b1fc6d3c 768 esw_cfg.pci_func = adapter->ahw->pci_func;
0325d69b
RB		 769 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
770 return -EIO;
8cf61f89 771 qlcnic_set_vlan_config(adapter, &esw_cfg);
0325d69b
RB		 772 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
773
774 return 0;
775}
776
777static void
778qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
779 struct qlcnic_esw_func_cfg *esw_cfg)
780{
781 struct net_device *netdev = adapter->netdev;
782 unsigned long features, vlan_features;
783
135d84a9 784 features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
0325d69b
RB		 785 NETIF_F_IPV6_CSUM | NETIF_F_GRO);
786 vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
b9796a14 787 NETIF_F_IPV6_CSUM | NETIF_F_HW_VLAN_FILTER);
0325d69b
RB		 788
789 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
790 features |= (NETIF_F_TSO | NETIF_F_TSO6);
791 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
792 }
b56421d0
RB		 793
794 if (netdev->features & NETIF_F_LRO)
0325d69b
RB		 795 features |= NETIF_F_LRO;
796
797 if (esw_cfg->offload_flags & BIT_0) {
798 netdev->features |= features;
0325d69b
RB		 799 if (!(esw_cfg->offload_flags & BIT_1))
800 netdev->features &= ~NETIF_F_TSO;
801 if (!(esw_cfg->offload_flags & BIT_2))
802 netdev->features &= ~NETIF_F_TSO6;
803 } else {
804 netdev->features &= ~features;
0325d69b
RB		 805 }
806
807 netdev->vlan_features = (features & vlan_features);
808}
809
0866d96d
AC		 810static int
811qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
812{
813 void __iomem *priv_op;
814 u32 op_mode, priv_level;
815 int err = 0;
816
174240a8
RB		 817 err = qlcnic_initialize_nic(adapter);
818 if (err)
819 return err;
820
0866d96d
AC		 821 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
822 return 0;
823
b1fc6d3c 824 priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
0866d96d 825 op_mode = readl(priv_op);
b1fc6d3c 826 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
0866d96d
AC		 827
828 if (op_mode == QLC_DEV_DRV_DEFAULT)
829 priv_level = QLCNIC_MGMT_FUNC;
830 else
b1fc6d3c 831 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
0866d96d 832
174240a8 833 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
0866d96d
AC		 834 if (priv_level == QLCNIC_MGMT_FUNC) {
835 adapter->op_mode = QLCNIC_MGMT_FUNC;
836 err = qlcnic_init_pci_info(adapter);
837 if (err)
838 return err;
839 /* Set privilege level for other functions */
840 qlcnic_set_function_modes(adapter);
841 dev_info(&adapter->pdev->dev,
842 "HAL Version: %d, Management function\n",
843 adapter->fw_hal_version);
844 } else if (priv_level == QLCNIC_PRIV_FUNC) {
845 adapter->op_mode = QLCNIC_PRIV_FUNC;
846 dev_info(&adapter->pdev->dev,
847 "HAL Version: %d, Privileged function\n",
848 adapter->fw_hal_version);
849 }
174240a8 850 }
0866d96d
AC		 851
852 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
853
854 return err;
855}
856
0325d69b
RB		 857static int
858qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
859{
860 struct qlcnic_esw_func_cfg esw_cfg;
861 struct qlcnic_npar_info *npar;
862 u8 i;
863
174240a8 864 if (adapter->need_fw_reset)
0325d69b
RB		 865 return 0;
866
867 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
868 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
869 continue;
870 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
871 esw_cfg.pci_func = i;
872 esw_cfg.offload_flags = BIT_0;
7373373d 873 esw_cfg.mac_override = BIT_0;
ee07c1a7 874 esw_cfg.promisc_mode = BIT_0;
0325d69b
RB		 875 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
876 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
877 if (qlcnic_config_switch_port(adapter, &esw_cfg))
878 return -EIO;
879 npar = &adapter->npars[i];
880 npar->pvid = esw_cfg.vlan_id;
7373373d 881 npar->mac_override = esw_cfg.mac_override;
0325d69b
RB		 882 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
883 npar->discard_tagged = esw_cfg.discard_tagged;
884 npar->promisc_mode = esw_cfg.promisc_mode;
885 npar->offload_flags = esw_cfg.offload_flags;
886 }
887
888 return 0;
889}
890
4e8acb01
RB		 891static int
892qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
893 struct qlcnic_npar_info *npar, int pci_func)
894{
895 struct qlcnic_esw_func_cfg esw_cfg;
896 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
897 esw_cfg.pci_func = pci_func;
898 esw_cfg.vlan_id = npar->pvid;
7373373d 899 esw_cfg.mac_override = npar->mac_override;
4e8acb01
RB		 900 esw_cfg.discard_tagged = npar->discard_tagged;
901 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
902 esw_cfg.offload_flags = npar->offload_flags;
903 esw_cfg.promisc_mode = npar->promisc_mode;
904 if (qlcnic_config_switch_port(adapter, &esw_cfg))
905 return -EIO;
906
907 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
908 if (qlcnic_config_switch_port(adapter, &esw_cfg))
909 return -EIO;
910
911 return 0;
912}
913
cea8975e
AC		 914static int
915qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
916{
4e8acb01 917 int i, err;
cea8975e
AC		 918 struct qlcnic_npar_info *npar;
919 struct qlcnic_info nic_info;
920
174240a8 921 if (!adapter->need_fw_reset)
cea8975e
AC		 922 return 0;
923
4e8acb01
RB		 924 /* Set the NPAR config data after FW reset */
925 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
926 npar = &adapter->npars[i];
927 if (npar->type != QLCNIC_TYPE_NIC)
928 continue;
929 err = qlcnic_get_nic_info(adapter, &nic_info, i);
930 if (err)
931 return err;
932 nic_info.min_tx_bw = npar->min_bw;
933 nic_info.max_tx_bw = npar->max_bw;
934 err = qlcnic_set_nic_info(adapter, &nic_info);
935 if (err)
936 return err;
cea8975e 937
4e8acb01
RB		 938 if (npar->enable_pm) {
939 err = qlcnic_config_port_mirroring(adapter,
940 npar->dest_npar, 1, i);
941 if (err)
942 return err;
cea8975e 943 }
4e8acb01
RB		 944 err = qlcnic_reset_eswitch_config(adapter, npar, i);
945 if (err)
946 return err;
cea8975e 947 }
4e8acb01 948 return 0;
cea8975e
AC		 949}
950
78f84e1a
AKS		 951static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
952{
953 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
954 u32 npar_state;
955
956 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
957 return 0;
958
959 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
960 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
961 msleep(1000);
962 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
963 }
964 if (!npar_opt_timeo) {
965 dev_err(&adapter->pdev->dev,
966 "Waiting for NPAR state to opertional timeout\n");
967 return -EIO;
968 }
969 return 0;
970}
971
174240a8
RB		 972static int
973qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
974{
975 int err;
976
977 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
978 adapter->op_mode != QLCNIC_MGMT_FUNC)
979 return 0;
980
981 err = qlcnic_set_default_offload_settings(adapter);
982 if (err)
983 return err;
984
985 err = qlcnic_reset_npar_config(adapter);
986 if (err)
987 return err;
988
989 qlcnic_dev_set_npar_ready(adapter);
990
991 return err;
992}
993
af19b491
AKS		 994static int
995qlcnic_start_firmware(struct qlcnic_adapter *adapter)
996{
d4066833 997 int err;
af19b491 998
aa5e18c0
SC		 999 err = qlcnic_can_start_firmware(adapter);
1000 if (err < 0)
1001 return err;
1002 else if (!err)
d4066833 1003 goto check_fw_status;
af19b491 1004
4d5bdb38
AKS		 1005 if (load_fw_file)
1006 qlcnic_request_firmware(adapter);
8f891387 1007 else {
8cfdce08
SC		 1008 err = qlcnic_check_flash_fw_ver(adapter);
1009 if (err)
8f891387 1010 goto err_out;
1011
4d5bdb38 1012 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
8f891387 1013 }
af19b491
AKS		 1014
1015 err = qlcnic_need_fw_reset(adapter);
af19b491 1016 if (err == 0)
4e70812b 1017 goto check_fw_status;
af19b491 1018
d4066833
SC		 1019 err = qlcnic_pinit_from_rom(adapter);
1020 if (err)
1021 goto err_out;
af19b491
AKS		 1022
1023 err = qlcnic_load_firmware(adapter);
1024 if (err)
1025 goto err_out;
1026
1027 qlcnic_release_firmware(adapter);
d4066833 1028 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
af19b491 1029
d4066833
SC		 1030check_fw_status:
1031 err = qlcnic_check_fw_status(adapter);
af19b491
AKS		 1032 if (err)
1033 goto err_out;
1034
1035 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
6df900e9 1036 qlcnic_idc_debug_info(adapter, 1);
b18971d1 1037
0866d96d
AC		 1038 err = qlcnic_check_eswitch_mode(adapter);
1039 if (err) {
1040 dev_err(&adapter->pdev->dev,
1041 "Memory allocation failed for eswitch\n");
1042 goto err_out;
1043 }
174240a8
RB		 1044 err = qlcnic_set_mgmt_operations(adapter);
1045 if (err)
1046 goto err_out;
1047
1048 qlcnic_check_options(adapter);
af19b491
AKS		 1049 adapter->need_fw_reset = 0;
1050
a7fc948f
AKS		 1051 qlcnic_release_firmware(adapter);
1052 return 0;
af19b491
AKS		 1053
1054err_out:
a7fc948f
AKS		 1055 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1056 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
0866d96d 1057
af19b491
AKS		 1058 qlcnic_release_firmware(adapter);
1059 return err;
1060}
1061
1062static int
1063qlcnic_request_irq(struct qlcnic_adapter *adapter)
1064{
1065 irq_handler_t handler;
1066 struct qlcnic_host_sds_ring *sds_ring;
1067 int err, ring;
1068
1069 unsigned long flags = 0;
1070 struct net_device *netdev = adapter->netdev;
b1fc6d3c 1071 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
af19b491 1072
7eb9855d
AKS		 1073 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1074 handler = qlcnic_tmp_intr;
1075 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1076 flags |= IRQF_SHARED;
1077
1078 } else {
1079 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1080 handler = qlcnic_msix_intr;
1081 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1082 handler = qlcnic_msi_intr;
1083 else {
1084 flags |= IRQF_SHARED;
1085 handler = qlcnic_intr;
1086 }
af19b491
AKS		 1087 }
1088 adapter->irq = netdev->irq;
1089
1090 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1091 sds_ring = &recv_ctx->sds_rings[ring];
1092 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1093 err = request_irq(sds_ring->irq, handler,
1094 flags, sds_ring->name, sds_ring);
1095 if (err)
1096 return err;
1097 }
1098
1099 return 0;
1100}
1101
1102static void
1103qlcnic_free_irq(struct qlcnic_adapter *adapter)
1104{
1105 int ring;
1106 struct qlcnic_host_sds_ring *sds_ring;
1107
b1fc6d3c 1108 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
af19b491
AKS		 1109
1110 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1111 sds_ring = &recv_ctx->sds_rings[ring];
1112 free_irq(sds_ring->irq, sds_ring);
1113 }
1114}
1115
af19b491
AKS		 1116static int
1117__qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1118{
8a15ad1f
AKS		 1119 int ring;
1120 struct qlcnic_host_rds_ring *rds_ring;
1121
af19b491
AKS		 1122 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1123 return -EIO;
1124
8a15ad1f
AKS		 1125 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1126 return 0;
0325d69b
RB		 1127 if (qlcnic_set_eswitch_port_config(adapter))
1128 return -EIO;
8a15ad1f
AKS		 1129
1130 if (qlcnic_fw_create_ctx(adapter))
1131 return -EIO;
1132
1133 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
b1fc6d3c
AC		 1134 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1135 qlcnic_post_rx_buffers(adapter, rds_ring);
8a15ad1f
AKS		 1136 }
1137
af19b491
AKS		 1138 qlcnic_set_multi(netdev);
1139 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1140
b1fc6d3c 1141 adapter->ahw->linkup = 0;
af19b491
AKS		 1142
1143 if (adapter->max_sds_rings > 1)
1144 qlcnic_config_rss(adapter, 1);
1145
1146 qlcnic_config_intr_coalesce(adapter);
1147
24763d80 1148 if (netdev->features & NETIF_F_LRO)
af19b491
AKS		 1149 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1150
1151 qlcnic_napi_enable(adapter);
1152
1153 qlcnic_linkevent_request(adapter, 1);
1154
68bf1c68 1155 adapter->reset_context = 0;
af19b491
AKS		 1156 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1157 return 0;
1158}
1159
1160/* Usage: During resume and firmware recovery module.*/
1161
1162static int
1163qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1164{
1165 int err = 0;
1166
1167 rtnl_lock();
1168 if (netif_running(netdev))
1169 err = __qlcnic_up(adapter, netdev);
1170 rtnl_unlock();
1171
1172 return err;
1173}
1174
1175static void
1176__qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1177{
1178 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1179 return;
1180
1181 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1182 return;
1183
1184 smp_mb();
1185 spin_lock(&adapter->tx_clean_lock);
1186 netif_carrier_off(netdev);
1187 netif_tx_disable(netdev);
1188
1189 qlcnic_free_mac_list(adapter);
1190
b5e5492c
AKS		 1191 if (adapter->fhash.fnum)
1192 qlcnic_delete_lb_filters(adapter);
1193
af19b491
AKS		 1194 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1195
1196 qlcnic_napi_disable(adapter);
1197
8a15ad1f
AKS		 1198 qlcnic_fw_destroy_ctx(adapter);
1199
1200 qlcnic_reset_rx_buffers_list(adapter);
af19b491
AKS		 1201 qlcnic_release_tx_buffers(adapter);
1202 spin_unlock(&adapter->tx_clean_lock);
1203}
1204
1205/* Usage: During suspend and firmware recovery module */
1206
1207static void
1208qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1209{
1210 rtnl_lock();
1211 if (netif_running(netdev))
1212 __qlcnic_down(adapter, netdev);
1213 rtnl_unlock();
1214
1215}
1216
1217static int
1218qlcnic_attach(struct qlcnic_adapter *adapter)
1219{
1220 struct net_device *netdev = adapter->netdev;
1221 struct pci_dev *pdev = adapter->pdev;
8a15ad1f 1222 int err;
af19b491
AKS		 1223
1224 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1225 return 0;
1226
af19b491
AKS		 1227 err = qlcnic_napi_add(adapter, netdev);
1228 if (err)
1229 return err;
1230
1231 err = qlcnic_alloc_sw_resources(adapter);
1232 if (err) {
1233 dev_err(&pdev->dev, "Error in setting sw resources\n");
8a15ad1f 1234 goto err_out_napi_del;
af19b491
AKS		 1235 }
1236
1237 err = qlcnic_alloc_hw_resources(adapter);
1238 if (err) {
1239 dev_err(&pdev->dev, "Error in setting hw resources\n");
1240 goto err_out_free_sw;
1241 }
1242
af19b491
AKS		 1243 err = qlcnic_request_irq(adapter);
1244 if (err) {
1245 dev_err(&pdev->dev, "failed to setup interrupt\n");
8a15ad1f 1246 goto err_out_free_hw;
af19b491
AKS		 1247 }
1248
af19b491
AKS		 1249 qlcnic_create_sysfs_entries(adapter);
1250
1251 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1252 return 0;
1253
8a15ad1f 1254err_out_free_hw:
af19b491
AKS		 1255 qlcnic_free_hw_resources(adapter);
1256err_out_free_sw:
1257 qlcnic_free_sw_resources(adapter);
8a15ad1f
AKS		 1258err_out_napi_del:
1259 qlcnic_napi_del(adapter);
af19b491
AKS		 1260 return err;
1261}
1262
1263static void
1264qlcnic_detach(struct qlcnic_adapter *adapter)
1265{
1266 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1267 return;
1268
1269 qlcnic_remove_sysfs_entries(adapter);
1270
1271 qlcnic_free_hw_resources(adapter);
1272 qlcnic_release_rx_buffers(adapter);
1273 qlcnic_free_irq(adapter);
1274 qlcnic_napi_del(adapter);
1275 qlcnic_free_sw_resources(adapter);
1276
1277 adapter->is_up = 0;
1278}
1279
7eb9855d
AKS		 1280void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1281{
1282 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1283 struct qlcnic_host_sds_ring *sds_ring;
1284 int ring;
1285
78ad3892 1286 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
cdaff185
AKS		 1287 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1288 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
b1fc6d3c 1289 sds_ring = &adapter->recv_ctx->sds_rings[ring];
cdaff185
AKS		 1290 qlcnic_disable_int(sds_ring);
1291 }
7eb9855d
AKS		 1292 }
1293
8a15ad1f
AKS		 1294 qlcnic_fw_destroy_ctx(adapter);
1295
7eb9855d
AKS		 1296 qlcnic_detach(adapter);
1297
1298 adapter->diag_test = 0;
1299 adapter->max_sds_rings = max_sds_rings;
1300
1301 if (qlcnic_attach(adapter))
34ce3626 1302 goto out;
7eb9855d
AKS		 1303
1304 if (netif_running(netdev))
1305 __qlcnic_up(adapter, netdev);
34ce3626 1306out:
7eb9855d
AKS		 1307 netif_device_attach(netdev);
1308}
1309
b1fc6d3c
AC		 1310static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1311{
1312 int err = 0;
1313 adapter->ahw = kzalloc(sizeof(struct qlcnic_hardware_context),
1314 GFP_KERNEL);
1315 if (!adapter->ahw) {
1316 dev_err(&adapter->pdev->dev,
1317 "Failed to allocate recv ctx resources for adapter\n");
1318 err = -ENOMEM;
1319 goto err_out;
1320 }
1321 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1322 GFP_KERNEL);
1323 if (!adapter->recv_ctx) {
1324 dev_err(&adapter->pdev->dev,
1325 "Failed to allocate recv ctx resources for adapter\n");
1326 kfree(adapter->ahw);
1327 adapter->ahw = NULL;
1328 err = -ENOMEM;
8816d009 1329 goto err_out;
b1fc6d3c 1330 }
8816d009
AC		 1331 /* Initialize interrupt coalesce parameters */
1332 adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1333 adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1334 adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
b1fc6d3c
AC		 1335err_out:
1336 return err;
1337}
1338
1339static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1340{
1341 kfree(adapter->recv_ctx);
1342 adapter->recv_ctx = NULL;
1343
18f2f616
AC		 1344 if (adapter->ahw->fw_dump.tmpl_hdr) {
1345 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1346 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1347 }
b1fc6d3c
AC		 1348 kfree(adapter->ahw);
1349 adapter->ahw = NULL;
1350}
1351
7eb9855d
AKS		 1352int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1353{
1354 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1355 struct qlcnic_host_sds_ring *sds_ring;
8a15ad1f 1356 struct qlcnic_host_rds_ring *rds_ring;
7eb9855d
AKS		 1357 int ring;
1358 int ret;
1359
1360 netif_device_detach(netdev);
1361
1362 if (netif_running(netdev))
1363 __qlcnic_down(adapter, netdev);
1364
1365 qlcnic_detach(adapter);
1366
1367 adapter->max_sds_rings = 1;
1368 adapter->diag_test = test;
1369
1370 ret = qlcnic_attach(adapter);
34ce3626
AKS		 1371 if (ret) {
1372 netif_device_attach(netdev);
7eb9855d 1373 return ret;
34ce3626 1374 }
7eb9855d 1375
8a15ad1f
AKS		 1376 ret = qlcnic_fw_create_ctx(adapter);
1377 if (ret) {
1378 qlcnic_detach(adapter);
57e46248 1379 netif_device_attach(netdev);
8a15ad1f
AKS		 1380 return ret;
1381 }
1382
1383 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
b1fc6d3c
AC		 1384 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1385 qlcnic_post_rx_buffers(adapter, rds_ring);
8a15ad1f
AKS		 1386 }
1387
cdaff185
AKS		 1388 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1389 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
b1fc6d3c 1390 sds_ring = &adapter->recv_ctx->sds_rings[ring];
cdaff185
AKS		 1391 qlcnic_enable_int(sds_ring);
1392 }
7eb9855d 1393 }
78ad3892 1394 set_bit(__QLCNIC_DEV_UP, &adapter->state);
7eb9855d
AKS		 1395
1396 return 0;
1397}
1398
68bf1c68
AKS		 1399/* Reset context in hardware only */
1400static int
1401qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1402{
1403 struct net_device *netdev = adapter->netdev;
1404
1405 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1406 return -EBUSY;
1407
1408 netif_device_detach(netdev);
1409
1410 qlcnic_down(adapter, netdev);
1411
1412 qlcnic_up(adapter, netdev);
1413
1414 netif_device_attach(netdev);
1415
1416 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1417 return 0;
1418}
1419
af19b491
AKS		 1420int
1421qlcnic_reset_context(struct qlcnic_adapter *adapter)
1422{
1423 int err = 0;
1424 struct net_device *netdev = adapter->netdev;
1425
1426 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1427 return -EBUSY;
1428
1429 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1430
1431 netif_device_detach(netdev);
1432
1433 if (netif_running(netdev))
1434 __qlcnic_down(adapter, netdev);
1435
1436 qlcnic_detach(adapter);
1437
1438 if (netif_running(netdev)) {
1439 err = qlcnic_attach(adapter);
1440 if (!err)
34ce3626 1441 __qlcnic_up(adapter, netdev);
af19b491
AKS		 1442 }
1443
1444 netif_device_attach(netdev);
1445 }
1446
af19b491
AKS		 1447 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1448 return err;
1449}
1450
1451static int
1452qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1bb09fb9 1453 struct net_device *netdev, u8 pci_using_dac)
af19b491
AKS		 1454{
1455 int err;
1456 struct pci_dev *pdev = adapter->pdev;
1457
af19b491
AKS		 1458 adapter->mc_enabled = 0;
1459 adapter->max_mc_count = 38;
1460
1461 netdev->netdev_ops = &qlcnic_netdev_ops;
ef71ff83 1462 netdev->watchdog_timeo = 5*HZ;
af19b491
AKS		 1463
1464 qlcnic_change_mtu(netdev, netdev->mtu);
1465
1466 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1467
135d84a9
MM		 1468 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
1469 NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM;
ac8d0c4f 1470
135d84a9
MM		 1471 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
1472 netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
1473 if (pci_using_dac)
1474 netdev->hw_features |= NETIF_F_HIGHDMA;
af19b491 1475
135d84a9 1476 netdev->vlan_features = netdev->hw_features;
af19b491
AKS		 1477
1478 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
135d84a9 1479 netdev->hw_features |= NETIF_F_HW_VLAN_TX;
af19b491 1480 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
135d84a9
MM		 1481 netdev->hw_features |= NETIF_F_LRO;
1482
1483 netdev->features |= netdev->hw_features |
1484 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
1485
af19b491
AKS		 1486 netdev->irq = adapter->msix_entries[0].vector;
1487
af19b491
AKS		 1488 err = register_netdev(netdev);
1489 if (err) {
1490 dev_err(&pdev->dev, "failed to register net device\n");
1491 return err;
1492 }
1493
1494 return 0;
1495}
1496
1bb09fb9
AKS		 1497static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1498{
1499 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1500 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1501 *pci_using_dac = 1;
1502 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1503 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1504 *pci_using_dac = 0;
1505 else {
1506 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1507 return -EIO;
1508 }
1509
1510 return 0;
1511}
1512
f94bc1e7
SC		 1513static int
1514qlcnic_alloc_msix_entries(struct qlcnic_adapter *adapter, u16 count)
1515{
1516 adapter->msix_entries = kcalloc(count, sizeof(struct msix_entry),
1517 GFP_KERNEL);
1518
1519 if (adapter->msix_entries)
1520 return 0;
1521
1522 dev_err(&adapter->pdev->dev, "failed allocating msix_entries\n");
1523 return -ENOMEM;
1524}
1525
af19b491
AKS		 1526static int __devinit
1527qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1528{
1529 struct net_device *netdev = NULL;
1530 struct qlcnic_adapter *adapter = NULL;
1531 int err;
af19b491 1532 uint8_t revision_id;
1bb09fb9 1533 uint8_t pci_using_dac;
da48e6c3 1534 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
af19b491
AKS		 1535
1536 err = pci_enable_device(pdev);
1537 if (err)
1538 return err;
1539
1540 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1541 err = -ENODEV;
1542 goto err_out_disable_pdev;
1543 }
1544
1bb09fb9
AKS		 1545 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1546 if (err)
1547 goto err_out_disable_pdev;
1548
af19b491
AKS		 1549 err = pci_request_regions(pdev, qlcnic_driver_name);
1550 if (err)
1551 goto err_out_disable_pdev;
1552
1553 pci_set_master(pdev);
451724c8 1554 pci_enable_pcie_error_reporting(pdev);
af19b491
AKS		 1555
1556 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1557 if (!netdev) {
1558 dev_err(&pdev->dev, "failed to allocate net_device\n");
1559 err = -ENOMEM;
1560 goto err_out_free_res;
1561 }
1562
1563 SET_NETDEV_DEV(netdev, &pdev->dev);
1564
1565 adapter = netdev_priv(netdev);
1566 adapter->netdev = netdev;
1567 adapter->pdev = pdev;
af19b491 1568
b1fc6d3c
AC		 1569 if (qlcnic_alloc_adapter_resources(adapter))
1570 goto err_out_free_netdev;
1571
1572 adapter->dev_rst_time = jiffies;
af19b491 1573 revision_id = pdev->revision;
b1fc6d3c 1574 adapter->ahw->revision_id = revision_id;
af19b491 1575
b1fc6d3c
AC		 1576 rwlock_init(&adapter->ahw->crb_lock);
1577 mutex_init(&adapter->ahw->mem_lock);
af19b491
AKS		 1578
1579 spin_lock_init(&adapter->tx_clean_lock);
1580 INIT_LIST_HEAD(&adapter->mac_list);
1581
1582 err = qlcnic_setup_pci_map(adapter);
1583 if (err)
b1fc6d3c 1584 goto err_out_free_hw;
af19b491
AKS		 1585
1586 /* This will be reset for mezz cards */
b1fc6d3c 1587 adapter->portnum = adapter->ahw->pci_func;
af19b491
AKS		 1588
1589 err = qlcnic_get_board_info(adapter);
1590 if (err) {
1591 dev_err(&pdev->dev, "Error getting board config info.\n");
1592 goto err_out_iounmap;
1593 }
1594
8cfdce08
SC		 1595 err = qlcnic_setup_idc_param(adapter);
1596 if (err)
b3a24649 1597 goto err_out_iounmap;
af19b491 1598
1dc0f3c5 1599 adapter->flags |= QLCNIC_NEED_FLR;
b0044bcf 1600
9f26f547 1601 err = adapter->nic_ops->start_firmware(adapter);
a7fc948f
AKS		 1602 if (err) {
1603 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
af19b491 1604 goto err_out_decr_ref;
a7fc948f 1605 }
af19b491 1606
602ca6f0
SV		 1607 /* Get FW dump template and store it */
1608 if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC)
1609 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1610 dev_info(&pdev->dev,
1611 "Supports FW dump capability\n");
1612
da48e6c3
RB		 1613 if (qlcnic_read_mac_addr(adapter))
1614 dev_warn(&pdev->dev, "failed to read mac addr\n");
1615
1616 if (adapter->portnum == 0) {
1617 get_brd_name(adapter, brd_name);
1618
1619 pr_info("%s: %s Board Chip rev 0x%x\n",
1620 module_name(THIS_MODULE),
b1fc6d3c 1621 brd_name, adapter->ahw->revision_id);
da48e6c3
RB		 1622 }
1623
af19b491
AKS		 1624 qlcnic_clear_stats(adapter);
1625
f94bc1e7
SC		 1626 err = qlcnic_alloc_msix_entries(adapter, adapter->max_rx_ques);
1627 if (err)
1628 goto err_out_decr_ref;
1629
af19b491
AKS		 1630 qlcnic_setup_intr(adapter);
1631
1bb09fb9 1632 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
af19b491
AKS		 1633 if (err)
1634 goto err_out_disable_msi;
1635
1636 pci_set_drvdata(pdev, adapter);
1637
1638 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1639
b1fc6d3c 1640 switch (adapter->ahw->port_type) {
af19b491
AKS		 1641 case QLCNIC_GBE:
1642 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1643 adapter->netdev->name);
1644 break;
1645 case QLCNIC_XGBE:
1646 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1647 adapter->netdev->name);
1648 break;
1649 }
1650
b5e5492c 1651 qlcnic_alloc_lb_filters_mem(adapter);
af19b491
AKS		 1652 qlcnic_create_diag_entries(adapter);
1653
1654 return 0;
1655
1656err_out_disable_msi:
1657 qlcnic_teardown_intr(adapter);
f94bc1e7 1658 kfree(adapter->msix_entries);
af19b491
AKS		 1659
1660err_out_decr_ref:
21854f02 1661 qlcnic_clr_all_drv_state(adapter, 0);
af19b491
AKS		 1662
1663err_out_iounmap:
1664 qlcnic_cleanup_pci_map(adapter);
1665
b1fc6d3c
AC		 1666err_out_free_hw:
1667 qlcnic_free_adapter_resources(adapter);
1668
af19b491
AKS		 1669err_out_free_netdev:
1670 free_netdev(netdev);
1671
1672err_out_free_res:
1673 pci_release_regions(pdev);
1674
1675err_out_disable_pdev:
1676 pci_set_drvdata(pdev, NULL);
1677 pci_disable_device(pdev);
1678 return err;
1679}
1680
1681static void __devexit qlcnic_remove(struct pci_dev *pdev)
1682{
1683 struct qlcnic_adapter *adapter;
1684 struct net_device *netdev;
1685
1686 adapter = pci_get_drvdata(pdev);
1687 if (adapter == NULL)
1688 return;
1689
1690 netdev = adapter->netdev;
1691
1692 qlcnic_cancel_fw_work(adapter);
1693
1694 unregister_netdev(netdev);
1695
af19b491
AKS		 1696 qlcnic_detach(adapter);
1697
2e9d722d
AC		 1698 if (adapter->npars != NULL)
1699 kfree(adapter->npars);
1700 if (adapter->eswitch != NULL)
1701 kfree(adapter->eswitch);
1702
21854f02 1703 qlcnic_clr_all_drv_state(adapter, 0);
af19b491
AKS		 1704
1705 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1706
b5e5492c
AKS		 1707 qlcnic_free_lb_filters_mem(adapter);
1708
af19b491 1709 qlcnic_teardown_intr(adapter);
f94bc1e7 1710 kfree(adapter->msix_entries);
af19b491
AKS		 1711
1712 qlcnic_remove_diag_entries(adapter);
1713
1714 qlcnic_cleanup_pci_map(adapter);
1715
1716 qlcnic_release_firmware(adapter);
1717
451724c8 1718 pci_disable_pcie_error_reporting(pdev);
af19b491
AKS		 1719 pci_release_regions(pdev);
1720 pci_disable_device(pdev);
1721 pci_set_drvdata(pdev, NULL);
1722
b1fc6d3c 1723 qlcnic_free_adapter_resources(adapter);
af19b491
AKS		 1724 free_netdev(netdev);
1725}
1726static int __qlcnic_shutdown(struct pci_dev *pdev)
1727{
1728 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1729 struct net_device *netdev = adapter->netdev;
1730 int retval;
1731
1732 netif_device_detach(netdev);
1733
1734 qlcnic_cancel_fw_work(adapter);
1735
1736 if (netif_running(netdev))
1737 qlcnic_down(adapter, netdev);
1738
21854f02 1739 qlcnic_clr_all_drv_state(adapter, 0);
af19b491
AKS		 1740
1741 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1742
1743 retval = pci_save_state(pdev);
1744 if (retval)
1745 return retval;
1746
1747 if (qlcnic_wol_supported(adapter)) {
1748 pci_enable_wake(pdev, PCI_D3cold, 1);
1749 pci_enable_wake(pdev, PCI_D3hot, 1);
1750 }
1751
1752 return 0;
1753}
1754
1755static void qlcnic_shutdown(struct pci_dev *pdev)
1756{
1757 if (__qlcnic_shutdown(pdev))
1758 return;
1759
1760 pci_disable_device(pdev);
1761}
1762
1763#ifdef CONFIG_PM
1764static int
1765qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1766{
1767 int retval;
1768
1769 retval = __qlcnic_shutdown(pdev);
1770 if (retval)
1771 return retval;
1772
1773 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1774 return 0;
1775}
1776
1777static int
1778qlcnic_resume(struct pci_dev *pdev)
1779{
1780 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1781 struct net_device *netdev = adapter->netdev;
1782 int err;
1783
1784 err = pci_enable_device(pdev);
1785 if (err)
1786 return err;
1787
1788 pci_set_power_state(pdev, PCI_D0);
1789 pci_set_master(pdev);
1790 pci_restore_state(pdev);
1791
9f26f547 1792 err = adapter->nic_ops->start_firmware(adapter);
af19b491
AKS		 1793 if (err) {
1794 dev_err(&pdev->dev, "failed to start firmware\n");
1795 return err;
1796 }
1797
1798 if (netif_running(netdev)) {
af19b491
AKS		 1799 err = qlcnic_up(adapter, netdev);
1800 if (err)
52486a3a 1801 goto done;
af19b491 1802
aec1e845 1803 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
af19b491 1804 }
52486a3a 1805done:
af19b491
AKS		 1806 netif_device_attach(netdev);
1807 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1808 return 0;
af19b491
AKS		 1809}
1810#endif
1811
1812static int qlcnic_open(struct net_device *netdev)
1813{
1814 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1815 int err;
1816
c55ad8e5
AKS		 1817 netif_carrier_off(netdev);
1818
af19b491
AKS		 1819 err = qlcnic_attach(adapter);
1820 if (err)
1821 return err;
1822
1823 err = __qlcnic_up(adapter, netdev);
1824 if (err)
1825 goto err_out;
1826
1827 netif_start_queue(netdev);
1828
1829 return 0;
1830
1831err_out:
1832 qlcnic_detach(adapter);
1833 return err;
1834}
1835
1836/*
1837 * qlcnic_close - Disables a network interface entry point
1838 */
1839static int qlcnic_close(struct net_device *netdev)
1840{
1841 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1842
1843 __qlcnic_down(adapter, netdev);
1844 return 0;
1845}
1846
b5e5492c
AKS		 1847static void
1848qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1849{
1850 void *head;
1851 int i;
1852
1853 if (!qlcnic_mac_learn)
1854 return;
1855
1856 spin_lock_init(&adapter->mac_learn_lock);
1857
1858 head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1859 GFP_KERNEL);
1860 if (!head)
1861 return;
1862
1863 adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
43d620c8 1864 adapter->fhash.fhead = head;
b5e5492c
AKS		 1865
1866 for (i = 0; i < adapter->fhash.fmax; i++)
1867 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1868}
1869
1870static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1871{
1872 if (adapter->fhash.fmax && adapter->fhash.fhead)
1873 kfree(adapter->fhash.fhead);
1874
1875 adapter->fhash.fhead = NULL;
1876 adapter->fhash.fmax = 0;
1877}
1878
1879static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
7e56cac4 1880 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
b5e5492c
AKS		 1881{
1882 struct cmd_desc_type0 *hwdesc;
1883 struct qlcnic_nic_req *req;
1884 struct qlcnic_mac_req *mac_req;
7e56cac4 1885 struct qlcnic_vlan_req *vlan_req;
b5e5492c
AKS		 1886 u32 producer;
1887 u64 word;
1888
1889 producer = tx_ring->producer;
1890 hwdesc = &tx_ring->desc_head[tx_ring->producer];
1891
1892 req = (struct qlcnic_nic_req *)hwdesc;
1893 memset(req, 0, sizeof(struct qlcnic_nic_req));
1894 req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1895
1896 word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1897 req->req_hdr = cpu_to_le64(word);
1898
1899 mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
03c5d770 1900 mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
b5e5492c
AKS		 1901 memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1902
7e56cac4
SC		 1903 vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1904 vlan_req->vlan_id = vlan_id;
03c5d770 1905
b5e5492c 1906 tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
036d61f0 1907 smp_mb();
b5e5492c
AKS		 1908}
1909
1910#define QLCNIC_MAC_HASH(MAC)\
1911 ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1912
1913static void
1914qlcnic_send_filter(struct qlcnic_adapter *adapter,
1915 struct qlcnic_host_tx_ring *tx_ring,
1916 struct cmd_desc_type0 *first_desc,
1917 struct sk_buff *skb)
1918{
1919 struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1920 struct qlcnic_filter *fil, *tmp_fil;
1921 struct hlist_node *tmp_hnode, *n;
1922 struct hlist_head *head;
1923 u64 src_addr = 0;
7e56cac4 1924 __le16 vlan_id = 0;
b5e5492c
AKS		 1925 u8 hindex;
1926
1927 if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1928 return;
1929
1930 if (adapter->fhash.fnum >= adapter->fhash.fmax)
1931 return;
1932
03c5d770
AKS		 1933 /* Only NPAR capable devices support vlan based learning*/
1934 if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1935 vlan_id = first_desc->vlan_TCI;
b5e5492c
AKS		 1936 memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1937 hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1938 head = &(adapter->fhash.fhead[hindex]);
1939
1940 hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
03c5d770
AKS		 1941 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1942 tmp_fil->vlan_id == vlan_id) {
e5edb7b1 1943
1944 if (jiffies >
1945 (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1946 qlcnic_change_filter(adapter, src_addr, vlan_id,
1947 tx_ring);
b5e5492c
AKS		 1948 tmp_fil->ftime = jiffies;
1949 return;
1950 }
1951 }
1952
1953 fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1954 if (!fil)
1955 return;
1956
03c5d770 1957 qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
b5e5492c
AKS		 1958
1959 fil->ftime = jiffies;
03c5d770 1960 fil->vlan_id = vlan_id;
b5e5492c
AKS		 1961 memcpy(fil->faddr, &src_addr, ETH_ALEN);
1962 spin_lock(&adapter->mac_learn_lock);
1963 hlist_add_head(&(fil->fnode), head);
1964 adapter->fhash.fnum++;
1965 spin_unlock(&adapter->mac_learn_lock);
1966}
1967
036d61f0
AC		 1968static int
1969qlcnic_tx_pkt(struct qlcnic_adapter *adapter,
af19b491
AKS		 1970 struct cmd_desc_type0 *first_desc,
1971 struct sk_buff *skb)
1972{
036d61f0
AC		 1973 u8 opcode = 0, hdr_len = 0;
1974 u16 flags = 0, vlan_tci = 0;
1975 int copied, offset, copy_len;
af19b491
AKS		 1976 struct cmd_desc_type0 *hwdesc;
1977 struct vlan_ethhdr *vh;
036d61f0
AC		 1978 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1979 u16 protocol = ntohs(skb->protocol);
2e9d722d 1980 u32 producer = tx_ring->producer;
036d61f0
AC		 1981
1982 if (protocol == ETH_P_8021Q) {
1983 vh = (struct vlan_ethhdr *)skb->data;
1984 flags = FLAGS_VLAN_TAGGED;
1985 vlan_tci = vh->h_vlan_TCI;
1986 } else if (vlan_tx_tag_present(skb)) {
1987 flags = FLAGS_VLAN_OOB;
1988 vlan_tci = vlan_tx_tag_get(skb);
1989 }
1990 if (unlikely(adapter->pvid)) {
1991 if (vlan_tci && !(adapter->flags & QLCNIC_TAGGING_ENABLED))
1992 return -EIO;
1993 if (vlan_tci && (adapter->flags & QLCNIC_TAGGING_ENABLED))
1994 goto set_flags;
1995
1996 flags = FLAGS_VLAN_OOB;
1997 vlan_tci = adapter->pvid;
1998 }
1999set_flags:
2000 qlcnic_set_tx_vlan_tci(first_desc, vlan_tci);
2001 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
af19b491 2002
2e9d722d
AC		 2003 if (*(skb->data) & BIT_0) {
2004 flags |= BIT_0;
2005 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
2006 }
036d61f0
AC		 2007 opcode = TX_ETHER_PKT;
2008 if ((adapter->netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
af19b491
AKS		 2009 skb_shinfo(skb)->gso_size > 0) {
2010
2011 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
2012
2013 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
2014 first_desc->total_hdr_length = hdr_len;
036d61f0
AC		 2015
2016 opcode = (protocol == ETH_P_IPV6) ? TX_TCP_LSO6 : TX_TCP_LSO;
2017
2018 /* For LSO, we need to copy the MAC/IP/TCP headers into
2019 * the descriptor ring */
2020 copied = 0;
2021 offset = 2;
2022
2023 if (flags & FLAGS_VLAN_OOB) {
af19b491
AKS		 2024 first_desc->total_hdr_length += VLAN_HLEN;
2025 first_desc->tcp_hdr_offset = VLAN_HLEN;
2026 first_desc->ip_hdr_offset = VLAN_HLEN;
2027 /* Only in case of TSO on vlan device */
2028 flags |= FLAGS_VLAN_TAGGED;
036d61f0
AC		 2029
2030 /* Create a TSO vlan header template for firmware */
2031
2032 hwdesc = &tx_ring->desc_head[producer];
2033 tx_ring->cmd_buf_arr[producer].skb = NULL;
2034
2035 copy_len = min((int)sizeof(struct cmd_desc_type0) -
2036 offset, hdr_len + VLAN_HLEN);
2037
2038 vh = (struct vlan_ethhdr *)((char *) hwdesc + 2);
2039 skb_copy_from_linear_data(skb, vh, 12);
2040 vh->h_vlan_proto = htons(ETH_P_8021Q);
2041 vh->h_vlan_TCI = htons(vlan_tci);
2042
2043 skb_copy_from_linear_data_offset(skb, 12,
2044 (char *)vh + 16, copy_len - 16);
2045
2046 copied = copy_len - VLAN_HLEN;
2047 offset = 0;
2048
2049 producer = get_next_index(producer, tx_ring->num_desc);
af19b491
AKS		 2050 }
2051
036d61f0
AC		 2052 while (copied < hdr_len) {
2053
2054 copy_len = min((int)sizeof(struct cmd_desc_type0) -
2055 offset, (hdr_len - copied));
2056
2057 hwdesc = &tx_ring->desc_head[producer];
2058 tx_ring->cmd_buf_arr[producer].skb = NULL;
2059
2060 skb_copy_from_linear_data_offset(skb, copied,
2061 (char *) hwdesc + offset, copy_len);
2062
2063 copied += copy_len;
2064 offset = 0;
2065
2066 producer = get_next_index(producer, tx_ring->num_desc);
2067 }
2068
2069 tx_ring->producer = producer;
2070 smp_mb();
2071 adapter->stats.lso_frames++;
af19b491
AKS		 2072
2073 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
2074 u8 l4proto;
2075
036d61f0 2076 if (protocol == ETH_P_IP) {
af19b491
AKS		 2077 l4proto = ip_hdr(skb)->protocol;
2078
2079 if (l4proto == IPPROTO_TCP)
2080 opcode = TX_TCP_PKT;
2081 else if (l4proto == IPPROTO_UDP)
2082 opcode = TX_UDP_PKT;
036d61f0 2083 } else if (protocol == ETH_P_IPV6) {
af19b491
AKS		 2084 l4proto = ipv6_hdr(skb)->nexthdr;
2085
2086 if (l4proto == IPPROTO_TCP)
2087 opcode = TX_TCPV6_PKT;
2088 else if (l4proto == IPPROTO_UDP)
2089 opcode = TX_UDPV6_PKT;
2090 }
2091 }
af19b491
AKS		 2092 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
2093 first_desc->ip_hdr_offset += skb_network_offset(skb);
2094 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2095
036d61f0 2096 return 0;
af19b491
AKS		 2097}
2098
2099static int
2100qlcnic_map_tx_skb(struct pci_dev *pdev,
2101 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2102{
2103 struct qlcnic_skb_frag *nf;
2104 struct skb_frag_struct *frag;
2105 int i, nr_frags;
2106 dma_addr_t map;
2107
2108 nr_frags = skb_shinfo(skb)->nr_frags;
2109 nf = &pbuf->frag_array[0];
2110
2111 map = pci_map_single(pdev, skb->data,
2112 skb_headlen(skb), PCI_DMA_TODEVICE);
2113 if (pci_dma_mapping_error(pdev, map))
2114 goto out_err;
2115
2116 nf->dma = map;
2117 nf->length = skb_headlen(skb);
2118
2119 for (i = 0; i < nr_frags; i++) {
2120 frag = &skb_shinfo(skb)->frags[i];
2121 nf = &pbuf->frag_array[i+1];
2122
2123 map = pci_map_page(pdev, frag->page, frag->page_offset,
2124 frag->size, PCI_DMA_TODEVICE);
2125 if (pci_dma_mapping_error(pdev, map))
2126 goto unwind;
2127
2128 nf->dma = map;
2129 nf->length = frag->size;
2130 }
2131
2132 return 0;
2133
2134unwind:
2135 while (--i >= 0) {
2136 nf = &pbuf->frag_array[i+1];
2137 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2138 }
2139
2140 nf = &pbuf->frag_array[0];
2141 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2142
2143out_err:
2144 return -ENOMEM;
2145}
2146
036d61f0
AC		 2147static void
2148qlcnic_unmap_buffers(struct pci_dev *pdev, struct sk_buff *skb,
2149 struct qlcnic_cmd_buffer *pbuf)
8cf61f89 2150{
036d61f0
AC		 2151 struct qlcnic_skb_frag *nf = &pbuf->frag_array[0];
2152 int nr_frags = skb_shinfo(skb)->nr_frags;
2153 int i;
8cf61f89 2154
036d61f0
AC		 2155 for (i = 0; i < nr_frags; i++) {
2156 nf = &pbuf->frag_array[i+1];
2157 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
8cf61f89 2158 }
8cf61f89 2159
036d61f0
AC		 2160 nf = &pbuf->frag_array[0];
2161 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
5b446c6a 2162 pbuf->skb = NULL;
8cf61f89
AKS		 2163}
2164
af19b491
AKS		 2165static inline void
2166qlcnic_clear_cmddesc(u64 *desc)
2167{
2168 desc[0] = 0ULL;
2169 desc[2] = 0ULL;
8cf61f89 2170 desc[7] = 0ULL;
af19b491
AKS		 2171}
2172
cdaff185 2173netdev_tx_t
af19b491
AKS		 2174qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2175{
2176 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2177 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2178 struct qlcnic_cmd_buffer *pbuf;
2179 struct qlcnic_skb_frag *buffrag;
2180 struct cmd_desc_type0 *hwdesc, *first_desc;
2181 struct pci_dev *pdev;
dcb50aff 2182 struct ethhdr *phdr;
91a403ca 2183 int delta = 0;
af19b491
AKS		 2184 int i, k;
2185
2186 u32 producer;
036d61f0 2187 int frag_count;
af19b491
AKS		 2188 u32 num_txd = tx_ring->num_desc;
2189
780ab790
AKS		 2190 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2191 netif_stop_queue(netdev);
2192 return NETDEV_TX_BUSY;
2193 }
2194
fe4d434d 2195 if (adapter->flags & QLCNIC_MACSPOOF) {
dcb50aff
RB		 2196 phdr = (struct ethhdr *)skb->data;
2197 if (compare_ether_addr(phdr->h_source,
fe4d434d
SC		 2198 adapter->mac_addr))
2199 goto drop_packet;
2200 }
2201
af19b491 2202 frag_count = skb_shinfo(skb)->nr_frags + 1;
91a403ca
AKS		 2203 /* 14 frags supported for normal packet and
2204 * 32 frags supported for TSO packet
2205 */
2206 if (!skb_is_gso(skb) && frag_count > QLCNIC_MAX_FRAGS_PER_TX) {
2207
2208 for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++)
2209 delta += skb_shinfo(skb)->frags[i].size;
2210
2211 if (!__pskb_pull_tail(skb, delta))
2212 goto drop_packet;
2213
2214 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2215 }
af19b491 2216
ef71ff83 2217 if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
af19b491 2218 netif_stop_queue(netdev);
ef71ff83
RB		 2219 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2220 netif_start_queue(netdev);
2221 else {
2222 adapter->stats.xmit_off++;
2223 return NETDEV_TX_BUSY;
2224 }
af19b491
AKS		 2225 }
2226
2227 producer = tx_ring->producer;
2228 pbuf = &tx_ring->cmd_buf_arr[producer];
2229
2230 pdev = adapter->pdev;
2231
8cf61f89
AKS		 2232 first_desc = hwdesc = &tx_ring->desc_head[producer];
2233 qlcnic_clear_cmddesc((u64 *)hwdesc);
2234
8ae6df97
AKS		 2235 if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2236 adapter->stats.tx_dma_map_error++;
af19b491 2237 goto drop_packet;
8ae6df97 2238 }
af19b491
AKS		 2239
2240 pbuf->skb = skb;
2241 pbuf->frag_count = frag_count;
2242
af19b491
AKS		 2243 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2244 qlcnic_set_tx_port(first_desc, adapter->portnum);
2245
2246 for (i = 0; i < frag_count; i++) {
2247
2248 k = i % 4;
2249
2250 if ((k == 0) && (i > 0)) {
2251 /* move to next desc.*/
2252 producer = get_next_index(producer, num_txd);
2253 hwdesc = &tx_ring->desc_head[producer];
2254 qlcnic_clear_cmddesc((u64 *)hwdesc);
2255 tx_ring->cmd_buf_arr[producer].skb = NULL;
2256 }
2257
2258 buffrag = &pbuf->frag_array[i];
2259
2260 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2261 switch (k) {
2262 case 0:
2263 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2264 break;
2265 case 1:
2266 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2267 break;
2268 case 2:
2269 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2270 break;
2271 case 3:
2272 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2273 break;
2274 }
2275 }
2276
2277 tx_ring->producer = get_next_index(producer, num_txd);
036d61f0 2278 smp_mb();
af19b491 2279
036d61f0
AC		 2280 if (unlikely(qlcnic_tx_pkt(adapter, first_desc, skb)))
2281 goto unwind_buff;
af19b491 2282
b5e5492c
AKS		 2283 if (qlcnic_mac_learn)
2284 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2285
af19b491
AKS		 2286 qlcnic_update_cmd_producer(adapter, tx_ring);
2287
2288 adapter->stats.txbytes += skb->len;
2289 adapter->stats.xmitcalled++;
2290
2291 return NETDEV_TX_OK;
2292
036d61f0
AC		 2293unwind_buff:
2294 qlcnic_unmap_buffers(pdev, skb, pbuf);
af19b491
AKS		 2295drop_packet:
2296 adapter->stats.txdropped++;
2297 dev_kfree_skb_any(skb);
2298 return NETDEV_TX_OK;
2299}
2300
2301static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2302{
2303 struct net_device *netdev = adapter->netdev;
2304 u32 temp, temp_state, temp_val;
2305 int rv = 0;
2306
2307 temp = QLCRD32(adapter, CRB_TEMP_STATE);
2308
2309 temp_state = qlcnic_get_temp_state(temp);
2310 temp_val = qlcnic_get_temp_val(temp);
2311
2312 if (temp_state == QLCNIC_TEMP_PANIC) {
2313 dev_err(&netdev->dev,
2314 "Device temperature %d degrees C exceeds"
2315 " maximum allowed. Hardware has been shut down.\n",
2316 temp_val);
2317 rv = 1;
2318 } else if (temp_state == QLCNIC_TEMP_WARN) {
2319 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2320 dev_err(&netdev->dev,
2321 "Device temperature %d degrees C "
2322 "exceeds operating range."
2323 " Immediate action needed.\n",
2324 temp_val);
2325 }
2326 } else {
2327 if (adapter->temp == QLCNIC_TEMP_WARN) {
2328 dev_info(&netdev->dev,
2329 "Device temperature is now %d degrees C"
2330 " in normal range.\n", temp_val);
2331 }
2332 }
2333 adapter->temp = temp_state;
2334 return rv;
2335}
2336
2337void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2338{
2339 struct net_device *netdev = adapter->netdev;
2340
b1fc6d3c 2341 if (adapter->ahw->linkup && !linkup) {
69324275 2342 netdev_info(netdev, "NIC Link is down\n");
b1fc6d3c 2343 adapter->ahw->linkup = 0;
af19b491
AKS		 2344 if (netif_running(netdev)) {
2345 netif_carrier_off(netdev);
2346 netif_stop_queue(netdev);
2347 }
b1fc6d3c 2348 } else if (!adapter->ahw->linkup && linkup) {
69324275 2349 netdev_info(netdev, "NIC Link is up\n");
b1fc6d3c 2350 adapter->ahw->linkup = 1;
af19b491
AKS		 2351 if (netif_running(netdev)) {
2352 netif_carrier_on(netdev);
2353 netif_wake_queue(netdev);
2354 }
2355 }
2356}
2357
2358static void qlcnic_tx_timeout(struct net_device *netdev)
2359{
2360 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2361
2362 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2363 return;
2364
2365 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
af19b491
AKS		 2366
2367 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
68bf1c68
AKS		 2368 adapter->need_fw_reset = 1;
2369 else
2370 adapter->reset_context = 1;
af19b491
AKS		 2371}
2372
2373static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2374{
2375 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2376 struct net_device_stats *stats = &netdev->stats;
2377
af19b491
AKS		 2378 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2379 stats->tx_packets = adapter->stats.xmitfinished;
7e382594 2380 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
af19b491
AKS		 2381 stats->tx_bytes = adapter->stats.txbytes;
2382 stats->rx_dropped = adapter->stats.rxdropped;
2383 stats->tx_dropped = adapter->stats.txdropped;
2384
2385 return stats;
2386}
2387
7eb9855d 2388static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
af19b491 2389{
af19b491
AKS		 2390 u32 status;
2391
2392 status = readl(adapter->isr_int_vec);
2393
2394 if (!(status & adapter->int_vec_bit))
2395 return IRQ_NONE;
2396
2397 /* check interrupt state machine, to be sure */
2398 status = readl(adapter->crb_int_state_reg);
2399 if (!ISR_LEGACY_INT_TRIGGERED(status))
2400 return IRQ_NONE;
2401
2402 writel(0xffffffff, adapter->tgt_status_reg);
2403 /* read twice to ensure write is flushed */
2404 readl(adapter->isr_int_vec);
2405 readl(adapter->isr_int_vec);
2406
7eb9855d
AKS		 2407 return IRQ_HANDLED;
2408}
2409
2410static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2411{
2412 struct qlcnic_host_sds_ring *sds_ring = data;
2413 struct qlcnic_adapter *adapter = sds_ring->adapter;
2414
2415 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2416 goto done;
2417 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2418 writel(0xffffffff, adapter->tgt_status_reg);
2419 goto done;
2420 }
2421
2422 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2423 return IRQ_NONE;
2424
2425done:
2426 adapter->diag_cnt++;
2427 qlcnic_enable_int(sds_ring);
2428 return IRQ_HANDLED;
2429}
2430
2431static irqreturn_t qlcnic_intr(int irq, void *data)
2432{
2433 struct qlcnic_host_sds_ring *sds_ring = data;
2434 struct qlcnic_adapter *adapter = sds_ring->adapter;
2435
2436 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2437 return IRQ_NONE;
2438
af19b491
AKS		 2439 napi_schedule(&sds_ring->napi);
2440
2441 return IRQ_HANDLED;
2442}
2443
2444static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2445{
2446 struct qlcnic_host_sds_ring *sds_ring = data;
2447 struct qlcnic_adapter *adapter = sds_ring->adapter;
2448
2449 /* clear interrupt */
2450 writel(0xffffffff, adapter->tgt_status_reg);
2451
2452 napi_schedule(&sds_ring->napi);
2453 return IRQ_HANDLED;
2454}
2455
2456static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2457{
2458 struct qlcnic_host_sds_ring *sds_ring = data;
2459
2460 napi_schedule(&sds_ring->napi);
2461 return IRQ_HANDLED;
2462}
2463
2464static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2465{
2466 u32 sw_consumer, hw_consumer;
2467 int count = 0, i;
2468 struct qlcnic_cmd_buffer *buffer;
2469 struct pci_dev *pdev = adapter->pdev;
2470 struct net_device *netdev = adapter->netdev;
2471 struct qlcnic_skb_frag *frag;
2472 int done;
2473 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2474
2475 if (!spin_trylock(&adapter->tx_clean_lock))
2476 return 1;
2477
2478 sw_consumer = tx_ring->sw_consumer;
2479 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2480
2481 while (sw_consumer != hw_consumer) {
2482 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2483 if (buffer->skb) {
2484 frag = &buffer->frag_array[0];
2485 pci_unmap_single(pdev, frag->dma, frag->length,
2486 PCI_DMA_TODEVICE);
2487 frag->dma = 0ULL;
2488 for (i = 1; i < buffer->frag_count; i++) {
2489 frag++;
2490 pci_unmap_page(pdev, frag->dma, frag->length,
2491 PCI_DMA_TODEVICE);
2492 frag->dma = 0ULL;
2493 }
2494
2495 adapter->stats.xmitfinished++;
2496 dev_kfree_skb_any(buffer->skb);
2497 buffer->skb = NULL;
2498 }
2499
2500 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2501 if (++count >= MAX_STATUS_HANDLE)
2502 break;
2503 }
2504
2505 if (count && netif_running(netdev)) {
2506 tx_ring->sw_consumer = sw_consumer;
2507
2508 smp_mb();
2509
2510 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
af19b491
AKS		 2511 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2512 netif_wake_queue(netdev);
8bfe8b91 2513 adapter->stats.xmit_on++;
af19b491 2514 }
af19b491 2515 }
ef71ff83 2516 adapter->tx_timeo_cnt = 0;
af19b491
AKS		 2517 }
2518 /*
2519 * If everything is freed up to consumer then check if the ring is full
2520 * If the ring is full then check if more needs to be freed and
2521 * schedule the call back again.
2522 *
2523 * This happens when there are 2 CPUs. One could be freeing and the
2524 * other filling it. If the ring is full when we get out of here and
2525 * the card has already interrupted the host then the host can miss the
2526 * interrupt.
2527 *
2528 * There is still a possible race condition and the host could miss an
2529 * interrupt. The card has to take care of this.
2530 */
2531 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2532 done = (sw_consumer == hw_consumer);
2533 spin_unlock(&adapter->tx_clean_lock);
2534
2535 return done;
2536}
2537
2538static int qlcnic_poll(struct napi_struct *napi, int budget)
2539{
2540 struct qlcnic_host_sds_ring *sds_ring =
2541 container_of(napi, struct qlcnic_host_sds_ring, napi);
2542
2543 struct qlcnic_adapter *adapter = sds_ring->adapter;
2544
2545 int tx_complete;
2546 int work_done;
2547
2548 tx_complete = qlcnic_process_cmd_ring(adapter);
2549
2550 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2551
2552 if ((work_done < budget) && tx_complete) {
2553 napi_complete(&sds_ring->napi);
2554 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2555 qlcnic_enable_int(sds_ring);
2556 }
2557
2558 return work_done;
2559}
2560
8f891387 2561static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2562{
2563 struct qlcnic_host_sds_ring *sds_ring =
2564 container_of(napi, struct qlcnic_host_sds_ring, napi);
2565
2566 struct qlcnic_adapter *adapter = sds_ring->adapter;
2567 int work_done;
2568
2569 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2570
2571 if (work_done < budget) {
2572 napi_complete(&sds_ring->napi);
2573 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2574 qlcnic_enable_int(sds_ring);
2575 }
2576
2577 return work_done;
2578}
2579
af19b491
AKS		 2580#ifdef CONFIG_NET_POLL_CONTROLLER
2581static void qlcnic_poll_controller(struct net_device *netdev)
2582{
bf82791e
YL		 2583 int ring;
2584 struct qlcnic_host_sds_ring *sds_ring;
af19b491 2585 struct qlcnic_adapter *adapter = netdev_priv(netdev);
b1fc6d3c 2586 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
bf82791e 2587
af19b491 2588 disable_irq(adapter->irq);
bf82791e
YL		 2589 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2590 sds_ring = &recv_ctx->sds_rings[ring];
2591 qlcnic_intr(adapter->irq, sds_ring);
2592 }
af19b491
AKS		 2593 enable_irq(adapter->irq);
2594}
2595#endif
2596
6df900e9
SC		 2597static void
2598qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2599{
2600 u32 val;
2601
2602 val = adapter->portnum & 0xf;
2603 val |= encoding << 7;
2604 val |= (jiffies - adapter->dev_rst_time) << 8;
2605
2606 QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2607 adapter->dev_rst_time = jiffies;
2608}
2609
ade91f8e
AKS		 2610static int
2611qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
af19b491
AKS		 2612{
2613 u32 val;
2614
2615 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2616 state != QLCNIC_DEV_NEED_QUISCENT);
2617
2618 if (qlcnic_api_lock(adapter))
ade91f8e 2619 return -EIO;
af19b491
AKS		 2620
2621 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2622
2623 if (state == QLCNIC_DEV_NEED_RESET)
6d2a4724 2624 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
af19b491 2625 else if (state == QLCNIC_DEV_NEED_QUISCENT)
6d2a4724 2626 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
af19b491
AKS		 2627
2628 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2629
2630 qlcnic_api_unlock(adapter);
ade91f8e
AKS		 2631
2632 return 0;
af19b491
AKS		 2633}
2634
1b95a839
AKS		 2635static int
2636qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2637{
2638 u32 val;
2639
2640 if (qlcnic_api_lock(adapter))
2641 return -EBUSY;
2642
2643 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2644 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
1b95a839
AKS		 2645 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2646
2647 qlcnic_api_unlock(adapter);
2648
2649 return 0;
2650}
2651
af19b491 2652static void
21854f02 2653qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
af19b491
AKS		 2654{
2655 u32 val;
2656
2657 if (qlcnic_api_lock(adapter))
2658 goto err;
2659
31018e06 2660 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
6d2a4724 2661 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
31018e06 2662 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
af19b491 2663
21854f02
AKS		 2664 if (failed) {
2665 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2666 dev_info(&adapter->pdev->dev,
2667 "Device state set to Failed. Please Reboot\n");
2668 } else if (!(val & 0x11111111))
af19b491
AKS		 2669 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2670
2671 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2672 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
af19b491
AKS		 2673 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2674
2675 qlcnic_api_unlock(adapter);
2676err:
2677 adapter->fw_fail_cnt = 0;
2678 clear_bit(__QLCNIC_START_FW, &adapter->state);
2679 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2680}
2681
f73dfc50 2682/* Grab api lock, before checking state */
af19b491
AKS		 2683static int
2684qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2685{
602ca6f0 2686 int act, state, active_mask;
af19b491
AKS		 2687
2688 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
31018e06 2689 act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
af19b491 2690
602ca6f0
SV		 2691 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2692 active_mask = (~(1 << (adapter->ahw->pci_func * 4)));
2693 act = act & active_mask;
2694 }
2695
af19b491
AKS		 2696 if (((state & 0x11111111) == (act & 0x11111111)) ||
2697 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2698 return 0;
2699 else
2700 return 1;
2701}
2702
96f8118c
SC		 2703static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2704{
2705 u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2706
2707 if (val != QLCNIC_DRV_IDC_VER) {
2708 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2709 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2710 }
2711
2712 return 0;
2713}
2714
af19b491
AKS		 2715static int
2716qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2717{
2718 u32 val, prev_state;
aa5e18c0 2719 u8 dev_init_timeo = adapter->dev_init_timeo;
6d2a4724 2720 u8 portnum = adapter->portnum;
96f8118c 2721 u8 ret;
af19b491 2722
f73dfc50
AKS		 2723 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2724 return 1;
2725
af19b491
AKS		 2726 if (qlcnic_api_lock(adapter))
2727 return -1;
2728
31018e06 2729 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
6d2a4724
AKS		 2730 if (!(val & (1 << (portnum * 4)))) {
2731 QLC_DEV_SET_REF_CNT(val, portnum);
31018e06 2732 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
af19b491
AKS		 2733 }
2734
2735 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
65b5b420 2736 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
af19b491
AKS		 2737
2738 switch (prev_state) {
2739 case QLCNIC_DEV_COLD:
bbd8c6a4 2740 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
96f8118c 2741 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
6df900e9 2742 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2743 qlcnic_api_unlock(adapter);
2744 return 1;
2745
2746 case QLCNIC_DEV_READY:
96f8118c 2747 ret = qlcnic_check_idc_ver(adapter);
af19b491 2748 qlcnic_api_unlock(adapter);
96f8118c 2749 return ret;
af19b491
AKS		 2750
2751 case QLCNIC_DEV_NEED_RESET:
2752 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2753 QLC_DEV_SET_RST_RDY(val, portnum);
af19b491
AKS		 2754 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2755 break;
2756
2757 case QLCNIC_DEV_NEED_QUISCENT:
2758 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2759 QLC_DEV_SET_QSCNT_RDY(val, portnum);
af19b491
AKS		 2760 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2761 break;
2762
2763 case QLCNIC_DEV_FAILED:
a7fc948f 2764 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
af19b491
AKS		 2765 qlcnic_api_unlock(adapter);
2766 return -1;
bbd8c6a4
AKS		 2767
2768 case QLCNIC_DEV_INITIALIZING:
2769 case QLCNIC_DEV_QUISCENT:
2770 break;
af19b491
AKS		 2771 }
2772
2773 qlcnic_api_unlock(adapter);
aa5e18c0
SC		 2774
2775 do {
af19b491 2776 msleep(1000);
a5e463d0
SC		 2777 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2778
2779 if (prev_state == QLCNIC_DEV_QUISCENT)
2780 continue;
2781 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
af19b491 2782
65b5b420
AKS		 2783 if (!dev_init_timeo) {
2784 dev_err(&adapter->pdev->dev,
2785 "Waiting for device to initialize timeout\n");
af19b491 2786 return -1;
65b5b420 2787 }
af19b491
AKS		 2788
2789 if (qlcnic_api_lock(adapter))
2790 return -1;
2791
2792 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2793 QLC_DEV_CLR_RST_QSCNT(val, portnum);
af19b491
AKS		 2794 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2795
96f8118c 2796 ret = qlcnic_check_idc_ver(adapter);
af19b491
AKS		 2797 qlcnic_api_unlock(adapter);
2798
96f8118c 2799 return ret;
af19b491
AKS		 2800}
2801
2802static void
2803qlcnic_fwinit_work(struct work_struct *work)
2804{
2805 struct qlcnic_adapter *adapter = container_of(work,
2806 struct qlcnic_adapter, fw_work.work);
3c4b23b1 2807 u32 dev_state = 0xf;
af19b491 2808
f73dfc50
AKS		 2809 if (qlcnic_api_lock(adapter))
2810 goto err_ret;
af19b491 2811
a5e463d0 2812 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
b8c17620
AKS		 2813 if (dev_state == QLCNIC_DEV_QUISCENT ||
2814 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
a5e463d0
SC		 2815 qlcnic_api_unlock(adapter);
2816 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2817 FW_POLL_DELAY * 2);
2818 return;
2819 }
2820
9f26f547 2821 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
3c4b23b1
AKS		 2822 qlcnic_api_unlock(adapter);
2823 goto wait_npar;
9f26f547
AC		 2824 }
2825
f73dfc50
AKS		 2826 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2827 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2828 adapter->reset_ack_timeo);
2829 goto skip_ack_check;
2830 }
2831
2832 if (!qlcnic_check_drv_state(adapter)) {
2833skip_ack_check:
602ca6f0
SV		 2834 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2835 qlcnic_api_unlock(adapter);
2836 goto wait_npar;
2837 }
2838
f73dfc50 2839 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
a5e463d0 2840
f73dfc50
AKS		 2841 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2842 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2843 QLCNIC_DEV_INITIALIZING);
2844 set_bit(__QLCNIC_START_FW, &adapter->state);
2845 QLCDB(adapter, DRV, "Restarting fw\n");
6df900e9 2846 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2847 }
2848
f73dfc50
AKS		 2849 qlcnic_api_unlock(adapter);
2850
287e38aa 2851 rtnl_lock();
9d6a6440
AC		 2852 if (adapter->ahw->fw_dump.enable) {
2853 QLCDB(adapter, DRV, "Take FW dump\n");
2854 qlcnic_dump_fw(adapter);
2855 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2856 }
287e38aa 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);
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