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af19b491 AKS |
1 | /* |
2 | * Copyright (C) 2009 - QLogic Corporation. | |
3 | * All rights reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License | |
7 | * as published by the Free Software Foundation; either version 2 | |
8 | * of the License, or (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | * MA 02111-1307, USA. | |
19 | * | |
20 | * The full GNU General Public License is included in this distribution | |
21 | * in the file called "COPYING". | |
22 | * | |
23 | */ | |
24 | ||
5a0e3ad6 | 25 | #include <linux/slab.h> |
af19b491 AKS |
26 | #include <linux/vmalloc.h> |
27 | #include <linux/interrupt.h> | |
28 | ||
29 | #include "qlcnic.h" | |
30 | ||
31 | #include <linux/dma-mapping.h> | |
32 | #include <linux/if_vlan.h> | |
33 | #include <net/ip.h> | |
34 | #include <linux/ipv6.h> | |
35 | #include <linux/inetdevice.h> | |
36 | #include <linux/sysfs.h> | |
37 | ||
7f9a0c34 | 38 | MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver"); |
af19b491 AKS |
39 | MODULE_LICENSE("GPL"); |
40 | MODULE_VERSION(QLCNIC_LINUX_VERSIONID); | |
41 | MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME); | |
42 | ||
43 | char qlcnic_driver_name[] = "qlcnic"; | |
7f9a0c34 SV |
44 | static const char qlcnic_driver_string[] = "QLogic 1/10 GbE " |
45 | "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID; | |
af19b491 AKS |
46 | |
47 | static int port_mode = QLCNIC_PORT_MODE_AUTO_NEG; | |
48 | ||
49 | /* Default to restricted 1G auto-neg mode */ | |
50 | static int wol_port_mode = 5; | |
51 | ||
52 | static int use_msi = 1; | |
53 | module_param(use_msi, int, 0644); | |
54 | MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled"); | |
55 | ||
56 | static int use_msi_x = 1; | |
57 | module_param(use_msi_x, int, 0644); | |
58 | MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled"); | |
59 | ||
60 | static int auto_fw_reset = AUTO_FW_RESET_ENABLED; | |
61 | module_param(auto_fw_reset, int, 0644); | |
62 | MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled"); | |
63 | ||
4d5bdb38 AKS |
64 | static int load_fw_file; |
65 | module_param(load_fw_file, int, 0644); | |
66 | MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file"); | |
67 | ||
2e9d722d AC |
68 | static int qlcnic_config_npars; |
69 | module_param(qlcnic_config_npars, int, 0644); | |
70 | MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled"); | |
71 | ||
af19b491 AKS |
72 | static int __devinit qlcnic_probe(struct pci_dev *pdev, |
73 | const struct pci_device_id *ent); | |
74 | static void __devexit qlcnic_remove(struct pci_dev *pdev); | |
75 | static int qlcnic_open(struct net_device *netdev); | |
76 | static int qlcnic_close(struct net_device *netdev); | |
af19b491 AKS |
77 | static void qlcnic_tx_timeout(struct net_device *netdev); |
78 | static void qlcnic_tx_timeout_task(struct work_struct *work); | |
79 | static void qlcnic_attach_work(struct work_struct *work); | |
80 | static void qlcnic_fwinit_work(struct work_struct *work); | |
81 | static void qlcnic_fw_poll_work(struct work_struct *work); | |
82 | static void qlcnic_schedule_work(struct qlcnic_adapter *adapter, | |
83 | work_func_t func, int delay); | |
84 | static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter); | |
85 | static int qlcnic_poll(struct napi_struct *napi, int budget); | |
8f891387 | 86 | static int qlcnic_rx_poll(struct napi_struct *napi, int budget); |
af19b491 AKS |
87 | #ifdef CONFIG_NET_POLL_CONTROLLER |
88 | static void qlcnic_poll_controller(struct net_device *netdev); | |
89 | #endif | |
90 | ||
91 | static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter); | |
92 | static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter); | |
93 | static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter); | |
94 | static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter); | |
95 | ||
6df900e9 | 96 | static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding); |
af19b491 AKS |
97 | static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter); |
98 | static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter); | |
99 | ||
7eb9855d | 100 | static irqreturn_t qlcnic_tmp_intr(int irq, void *data); |
af19b491 AKS |
101 | static irqreturn_t qlcnic_intr(int irq, void *data); |
102 | static irqreturn_t qlcnic_msi_intr(int irq, void *data); | |
103 | static irqreturn_t qlcnic_msix_intr(int irq, void *data); | |
104 | ||
105 | static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev); | |
106 | static void qlcnic_config_indev_addr(struct net_device *dev, unsigned long); | |
9f26f547 AC |
107 | static int qlcnic_start_firmware(struct qlcnic_adapter *); |
108 | ||
109 | static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *); | |
110 | static void qlcnicvf_clear_ilb_mode(struct qlcnic_adapter *); | |
111 | static int qlcnicvf_set_ilb_mode(struct qlcnic_adapter *); | |
112 | static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32); | |
113 | static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32); | |
114 | static int qlcnicvf_start_firmware(struct qlcnic_adapter *); | |
af19b491 AKS |
115 | /* PCI Device ID Table */ |
116 | #define ENTRY(device) \ | |
117 | {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \ | |
118 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} | |
119 | ||
120 | #define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020 | |
121 | ||
6a902881 | 122 | static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = { |
af19b491 AKS |
123 | ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X), |
124 | {0,} | |
125 | }; | |
126 | ||
127 | MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl); | |
128 | ||
129 | ||
130 | void | |
131 | qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter, | |
132 | struct qlcnic_host_tx_ring *tx_ring) | |
133 | { | |
134 | writel(tx_ring->producer, tx_ring->crb_cmd_producer); | |
135 | ||
136 | if (qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH) { | |
137 | netif_stop_queue(adapter->netdev); | |
138 | smp_mb(); | |
8bfe8b91 | 139 | adapter->stats.xmit_off++; |
af19b491 AKS |
140 | } |
141 | } | |
142 | ||
143 | static const u32 msi_tgt_status[8] = { | |
144 | ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, | |
145 | ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, | |
146 | ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, | |
147 | ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 | |
148 | }; | |
149 | ||
150 | static const | |
151 | struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG; | |
152 | ||
153 | static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring) | |
154 | { | |
155 | writel(0, sds_ring->crb_intr_mask); | |
156 | } | |
157 | ||
158 | static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring) | |
159 | { | |
160 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
161 | ||
162 | writel(0x1, sds_ring->crb_intr_mask); | |
163 | ||
164 | if (!QLCNIC_IS_MSI_FAMILY(adapter)) | |
165 | writel(0xfbff, adapter->tgt_mask_reg); | |
166 | } | |
167 | ||
168 | static int | |
169 | qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count) | |
170 | { | |
171 | int size = sizeof(struct qlcnic_host_sds_ring) * count; | |
172 | ||
173 | recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); | |
174 | ||
175 | return (recv_ctx->sds_rings == NULL); | |
176 | } | |
177 | ||
178 | static void | |
179 | qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx) | |
180 | { | |
181 | if (recv_ctx->sds_rings != NULL) | |
182 | kfree(recv_ctx->sds_rings); | |
183 | ||
184 | recv_ctx->sds_rings = NULL; | |
185 | } | |
186 | ||
187 | static int | |
188 | qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
189 | { | |
190 | int ring; | |
191 | struct qlcnic_host_sds_ring *sds_ring; | |
192 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
193 | ||
194 | if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) | |
195 | return -ENOMEM; | |
196 | ||
197 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
198 | sds_ring = &recv_ctx->sds_rings[ring]; | |
8f891387 | 199 | |
200 | if (ring == adapter->max_sds_rings - 1) | |
201 | netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll, | |
202 | QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings); | |
203 | else | |
204 | netif_napi_add(netdev, &sds_ring->napi, | |
205 | qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2); | |
af19b491 AKS |
206 | } |
207 | ||
208 | return 0; | |
209 | } | |
210 | ||
211 | static void | |
212 | qlcnic_napi_del(struct qlcnic_adapter *adapter) | |
213 | { | |
214 | int ring; | |
215 | struct qlcnic_host_sds_ring *sds_ring; | |
216 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
217 | ||
218 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
219 | sds_ring = &recv_ctx->sds_rings[ring]; | |
220 | netif_napi_del(&sds_ring->napi); | |
221 | } | |
222 | ||
223 | qlcnic_free_sds_rings(&adapter->recv_ctx); | |
224 | } | |
225 | ||
226 | static void | |
227 | qlcnic_napi_enable(struct qlcnic_adapter *adapter) | |
228 | { | |
229 | int ring; | |
230 | struct qlcnic_host_sds_ring *sds_ring; | |
231 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
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 | napi_enable(&sds_ring->napi); | |
239 | qlcnic_enable_int(sds_ring); | |
240 | } | |
241 | } | |
242 | ||
243 | static void | |
244 | qlcnic_napi_disable(struct qlcnic_adapter *adapter) | |
245 | { | |
246 | int ring; | |
247 | struct qlcnic_host_sds_ring *sds_ring; | |
248 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
249 | ||
780ab790 AKS |
250 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) |
251 | return; | |
252 | ||
af19b491 AKS |
253 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
254 | sds_ring = &recv_ctx->sds_rings[ring]; | |
255 | qlcnic_disable_int(sds_ring); | |
256 | napi_synchronize(&sds_ring->napi); | |
257 | napi_disable(&sds_ring->napi); | |
258 | } | |
259 | } | |
260 | ||
261 | static void qlcnic_clear_stats(struct qlcnic_adapter *adapter) | |
262 | { | |
263 | memset(&adapter->stats, 0, sizeof(adapter->stats)); | |
af19b491 AKS |
264 | } |
265 | ||
af19b491 AKS |
266 | static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter) |
267 | { | |
268 | u32 val, data; | |
269 | ||
270 | val = adapter->ahw.board_type; | |
271 | if ((val == QLCNIC_BRDTYPE_P3_HMEZ) || | |
272 | (val == QLCNIC_BRDTYPE_P3_XG_LOM)) { | |
273 | if (port_mode == QLCNIC_PORT_MODE_802_3_AP) { | |
274 | data = QLCNIC_PORT_MODE_802_3_AP; | |
275 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
276 | } else if (port_mode == QLCNIC_PORT_MODE_XG) { | |
277 | data = QLCNIC_PORT_MODE_XG; | |
278 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
279 | } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) { | |
280 | data = QLCNIC_PORT_MODE_AUTO_NEG_1G; | |
281 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
282 | } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) { | |
283 | data = QLCNIC_PORT_MODE_AUTO_NEG_XG; | |
284 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
285 | } else { | |
286 | data = QLCNIC_PORT_MODE_AUTO_NEG; | |
287 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
288 | } | |
289 | ||
290 | if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) && | |
291 | (wol_port_mode != QLCNIC_PORT_MODE_XG) && | |
292 | (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) && | |
293 | (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) { | |
294 | wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG; | |
295 | } | |
296 | QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode); | |
297 | } | |
298 | } | |
299 | ||
300 | static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable) | |
301 | { | |
302 | u32 control; | |
303 | int pos; | |
304 | ||
305 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
306 | if (pos) { | |
307 | pci_read_config_dword(pdev, pos, &control); | |
308 | if (enable) | |
309 | control |= PCI_MSIX_FLAGS_ENABLE; | |
310 | else | |
311 | control = 0; | |
312 | pci_write_config_dword(pdev, pos, control); | |
313 | } | |
314 | } | |
315 | ||
316 | static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count) | |
317 | { | |
318 | int i; | |
319 | ||
320 | for (i = 0; i < count; i++) | |
321 | adapter->msix_entries[i].entry = i; | |
322 | } | |
323 | ||
324 | static int | |
325 | qlcnic_read_mac_addr(struct qlcnic_adapter *adapter) | |
326 | { | |
2e9d722d | 327 | u8 mac_addr[ETH_ALEN]; |
af19b491 AKS |
328 | struct net_device *netdev = adapter->netdev; |
329 | struct pci_dev *pdev = adapter->pdev; | |
330 | ||
2e9d722d | 331 | if (adapter->nic_ops->get_mac_addr(adapter, mac_addr) != 0) |
af19b491 AKS |
332 | return -EIO; |
333 | ||
2e9d722d | 334 | memcpy(netdev->dev_addr, mac_addr, ETH_ALEN); |
af19b491 AKS |
335 | memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); |
336 | memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); | |
337 | ||
338 | /* set station address */ | |
339 | ||
340 | if (!is_valid_ether_addr(netdev->perm_addr)) | |
341 | dev_warn(&pdev->dev, "Bad MAC address %pM.\n", | |
342 | netdev->dev_addr); | |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
347 | static int qlcnic_set_mac(struct net_device *netdev, void *p) | |
348 | { | |
349 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
350 | struct sockaddr *addr = p; | |
351 | ||
352 | if (!is_valid_ether_addr(addr->sa_data)) | |
353 | return -EINVAL; | |
354 | ||
355 | if (netif_running(netdev)) { | |
356 | netif_device_detach(netdev); | |
357 | qlcnic_napi_disable(adapter); | |
358 | } | |
359 | ||
360 | memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); | |
361 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
362 | qlcnic_set_multi(adapter->netdev); | |
363 | ||
364 | if (netif_running(netdev)) { | |
365 | netif_device_attach(netdev); | |
366 | qlcnic_napi_enable(adapter); | |
367 | } | |
368 | return 0; | |
369 | } | |
370 | ||
371 | static const struct net_device_ops qlcnic_netdev_ops = { | |
372 | .ndo_open = qlcnic_open, | |
373 | .ndo_stop = qlcnic_close, | |
374 | .ndo_start_xmit = qlcnic_xmit_frame, | |
375 | .ndo_get_stats = qlcnic_get_stats, | |
376 | .ndo_validate_addr = eth_validate_addr, | |
377 | .ndo_set_multicast_list = qlcnic_set_multi, | |
378 | .ndo_set_mac_address = qlcnic_set_mac, | |
379 | .ndo_change_mtu = qlcnic_change_mtu, | |
380 | .ndo_tx_timeout = qlcnic_tx_timeout, | |
381 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
382 | .ndo_poll_controller = qlcnic_poll_controller, | |
383 | #endif | |
384 | }; | |
385 | ||
2e9d722d AC |
386 | static struct qlcnic_nic_template qlcnic_ops = { |
387 | .get_mac_addr = qlcnic_get_mac_addr, | |
388 | .config_bridged_mode = qlcnic_config_bridged_mode, | |
389 | .config_led = qlcnic_config_led, | |
390 | .set_ilb_mode = qlcnic_set_ilb_mode, | |
9f26f547 AC |
391 | .clear_ilb_mode = qlcnic_clear_ilb_mode, |
392 | .start_firmware = qlcnic_start_firmware | |
2e9d722d AC |
393 | }; |
394 | ||
395 | static struct qlcnic_nic_template qlcnic_pf_ops = { | |
396 | .get_mac_addr = qlcnic_get_mac_address, | |
397 | .config_bridged_mode = qlcnic_config_bridged_mode, | |
398 | .config_led = qlcnic_config_led, | |
399 | .set_ilb_mode = qlcnic_set_ilb_mode, | |
9f26f547 AC |
400 | .clear_ilb_mode = qlcnic_clear_ilb_mode, |
401 | .start_firmware = qlcnic_start_firmware | |
402 | }; | |
403 | ||
404 | static struct qlcnic_nic_template qlcnic_vf_ops = { | |
405 | .get_mac_addr = qlcnic_get_mac_address, | |
406 | .config_bridged_mode = qlcnicvf_config_bridged_mode, | |
407 | .config_led = qlcnicvf_config_led, | |
408 | .set_ilb_mode = qlcnicvf_set_ilb_mode, | |
409 | .clear_ilb_mode = qlcnicvf_clear_ilb_mode, | |
410 | .start_firmware = qlcnicvf_start_firmware | |
2e9d722d AC |
411 | }; |
412 | ||
af19b491 AKS |
413 | static void |
414 | qlcnic_setup_intr(struct qlcnic_adapter *adapter) | |
415 | { | |
416 | const struct qlcnic_legacy_intr_set *legacy_intrp; | |
417 | struct pci_dev *pdev = adapter->pdev; | |
418 | int err, num_msix; | |
419 | ||
420 | if (adapter->rss_supported) { | |
421 | num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? | |
422 | MSIX_ENTRIES_PER_ADAPTER : 2; | |
423 | } else | |
424 | num_msix = 1; | |
425 | ||
426 | adapter->max_sds_rings = 1; | |
427 | ||
428 | adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED); | |
429 | ||
430 | legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; | |
431 | ||
432 | adapter->int_vec_bit = legacy_intrp->int_vec_bit; | |
433 | adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter, | |
434 | legacy_intrp->tgt_status_reg); | |
435 | adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter, | |
436 | legacy_intrp->tgt_mask_reg); | |
437 | adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR); | |
438 | ||
439 | adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter, | |
440 | ISR_INT_STATE_REG); | |
441 | ||
442 | qlcnic_set_msix_bit(pdev, 0); | |
443 | ||
444 | if (adapter->msix_supported) { | |
445 | ||
446 | qlcnic_init_msix_entries(adapter, num_msix); | |
447 | err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); | |
448 | if (err == 0) { | |
449 | adapter->flags |= QLCNIC_MSIX_ENABLED; | |
450 | qlcnic_set_msix_bit(pdev, 1); | |
451 | ||
452 | if (adapter->rss_supported) | |
453 | adapter->max_sds_rings = num_msix; | |
454 | ||
455 | dev_info(&pdev->dev, "using msi-x interrupts\n"); | |
456 | return; | |
457 | } | |
458 | ||
459 | if (err > 0) | |
460 | pci_disable_msix(pdev); | |
461 | ||
462 | /* fall through for msi */ | |
463 | } | |
464 | ||
465 | if (use_msi && !pci_enable_msi(pdev)) { | |
466 | adapter->flags |= QLCNIC_MSI_ENABLED; | |
467 | adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter, | |
468 | msi_tgt_status[adapter->ahw.pci_func]); | |
469 | dev_info(&pdev->dev, "using msi interrupts\n"); | |
470 | adapter->msix_entries[0].vector = pdev->irq; | |
471 | return; | |
472 | } | |
473 | ||
474 | dev_info(&pdev->dev, "using legacy interrupts\n"); | |
475 | adapter->msix_entries[0].vector = pdev->irq; | |
476 | } | |
477 | ||
478 | static void | |
479 | qlcnic_teardown_intr(struct qlcnic_adapter *adapter) | |
480 | { | |
481 | if (adapter->flags & QLCNIC_MSIX_ENABLED) | |
482 | pci_disable_msix(adapter->pdev); | |
483 | if (adapter->flags & QLCNIC_MSI_ENABLED) | |
484 | pci_disable_msi(adapter->pdev); | |
485 | } | |
486 | ||
487 | static void | |
488 | qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter) | |
489 | { | |
490 | if (adapter->ahw.pci_base0 != NULL) | |
491 | iounmap(adapter->ahw.pci_base0); | |
492 | } | |
493 | ||
2e9d722d AC |
494 | static int |
495 | qlcnic_set_function_modes(struct qlcnic_adapter *adapter) | |
496 | { | |
497 | u8 id; | |
498 | u32 ref_count; | |
499 | int i, ret = 1; | |
500 | u32 data = QLCNIC_MGMT_FUNC; | |
501 | void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE; | |
502 | ||
503 | /* If other drivers are not in use set their privilege level */ | |
504 | ref_count = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); | |
505 | ret = qlcnic_api_lock(adapter); | |
506 | if (ret) | |
507 | goto err_lock; | |
508 | if (QLC_DEV_CLR_REF_CNT(ref_count, adapter->ahw.pci_func)) | |
509 | goto err_npar; | |
510 | ||
0e33c664 AC |
511 | if (qlcnic_config_npars) { |
512 | for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) { | |
513 | id = adapter->npars[i].id; | |
514 | if (adapter->npars[i].type != QLCNIC_TYPE_NIC || | |
515 | id == adapter->ahw.pci_func) | |
516 | continue; | |
517 | data |= (qlcnic_config_npars & | |
518 | QLC_DEV_SET_DRV(0xf, id)); | |
519 | } | |
520 | } else { | |
521 | data = readl(priv_op); | |
522 | data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) | | |
523 | (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, | |
524 | adapter->ahw.pci_func)); | |
2e9d722d AC |
525 | } |
526 | writel(data, priv_op); | |
2e9d722d AC |
527 | err_npar: |
528 | qlcnic_api_unlock(adapter); | |
529 | err_lock: | |
530 | return ret; | |
531 | } | |
532 | ||
2e9d722d AC |
533 | static u32 |
534 | qlcnic_get_driver_mode(struct qlcnic_adapter *adapter) | |
535 | { | |
536 | void __iomem *msix_base_addr; | |
537 | void __iomem *priv_op; | |
538 | u32 func; | |
539 | u32 msix_base; | |
540 | u32 op_mode, priv_level; | |
541 | ||
542 | /* Determine FW API version */ | |
543 | adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API); | |
544 | if (adapter->fw_hal_version == ~0) { | |
545 | adapter->nic_ops = &qlcnic_ops; | |
546 | adapter->fw_hal_version = QLCNIC_FW_BASE; | |
547 | adapter->ahw.pci_func = PCI_FUNC(adapter->pdev->devfn); | |
0e33c664 | 548 | adapter->capabilities = QLCRD32(adapter, CRB_FW_CAPABILITIES_1); |
2e9d722d AC |
549 | dev_info(&adapter->pdev->dev, |
550 | "FW does not support nic partion\n"); | |
551 | return adapter->fw_hal_version; | |
552 | } | |
553 | ||
554 | /* Find PCI function number */ | |
555 | pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func); | |
556 | msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE; | |
557 | msix_base = readl(msix_base_addr); | |
558 | func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE; | |
559 | adapter->ahw.pci_func = func; | |
560 | ||
0e33c664 AC |
561 | qlcnic_get_nic_info(adapter, adapter->ahw.pci_func); |
562 | ||
563 | if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) { | |
564 | adapter->nic_ops = &qlcnic_ops; | |
565 | return adapter->fw_hal_version; | |
566 | } | |
567 | ||
2e9d722d AC |
568 | /* Determine function privilege level */ |
569 | priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE; | |
570 | op_mode = readl(priv_op); | |
0e33c664 | 571 | if (op_mode == QLC_DEV_DRV_DEFAULT) |
2e9d722d | 572 | priv_level = QLCNIC_MGMT_FUNC; |
0e33c664 | 573 | else |
2e9d722d AC |
574 | priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func); |
575 | ||
576 | switch (priv_level) { | |
577 | case QLCNIC_MGMT_FUNC: | |
578 | adapter->op_mode = QLCNIC_MGMT_FUNC; | |
579 | adapter->nic_ops = &qlcnic_pf_ops; | |
0e33c664 | 580 | qlcnic_get_pci_info(adapter); |
2e9d722d | 581 | /* Set privilege level for other functions */ |
0e33c664 | 582 | qlcnic_set_function_modes(adapter); |
2e9d722d AC |
583 | dev_info(&adapter->pdev->dev, |
584 | "HAL Version: %d, Management function\n", | |
585 | adapter->fw_hal_version); | |
586 | break; | |
587 | case QLCNIC_PRIV_FUNC: | |
588 | adapter->op_mode = QLCNIC_PRIV_FUNC; | |
589 | dev_info(&adapter->pdev->dev, | |
590 | "HAL Version: %d, Privileged function\n", | |
591 | adapter->fw_hal_version); | |
592 | adapter->nic_ops = &qlcnic_pf_ops; | |
593 | break; | |
9f26f547 AC |
594 | case QLCNIC_NON_PRIV_FUNC: |
595 | adapter->op_mode = QLCNIC_NON_PRIV_FUNC; | |
596 | dev_info(&adapter->pdev->dev, | |
597 | "HAL Version: %d Non Privileged function\n", | |
598 | adapter->fw_hal_version); | |
599 | adapter->nic_ops = &qlcnic_vf_ops; | |
600 | break; | |
2e9d722d AC |
601 | default: |
602 | dev_info(&adapter->pdev->dev, "Unknown function mode: %d\n", | |
603 | priv_level); | |
604 | return 0; | |
605 | } | |
606 | return adapter->fw_hal_version; | |
607 | } | |
608 | ||
af19b491 AKS |
609 | static int |
610 | qlcnic_setup_pci_map(struct qlcnic_adapter *adapter) | |
611 | { | |
612 | void __iomem *mem_ptr0 = NULL; | |
613 | resource_size_t mem_base; | |
614 | unsigned long mem_len, pci_len0 = 0; | |
615 | ||
616 | struct pci_dev *pdev = adapter->pdev; | |
af19b491 | 617 | |
af19b491 AKS |
618 | /* remap phys address */ |
619 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
620 | mem_len = pci_resource_len(pdev, 0); | |
621 | ||
622 | if (mem_len == QLCNIC_PCI_2MB_SIZE) { | |
623 | ||
624 | mem_ptr0 = pci_ioremap_bar(pdev, 0); | |
625 | if (mem_ptr0 == NULL) { | |
626 | dev_err(&pdev->dev, "failed to map PCI bar 0\n"); | |
627 | return -EIO; | |
628 | } | |
629 | pci_len0 = mem_len; | |
630 | } else { | |
631 | return -EIO; | |
632 | } | |
633 | ||
634 | dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); | |
635 | ||
636 | adapter->ahw.pci_base0 = mem_ptr0; | |
637 | adapter->ahw.pci_len0 = pci_len0; | |
638 | ||
2e9d722d AC |
639 | if (!qlcnic_get_driver_mode(adapter)) { |
640 | iounmap(adapter->ahw.pci_base0); | |
641 | return -EIO; | |
642 | } | |
643 | ||
af19b491 | 644 | adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter, |
2e9d722d | 645 | QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func))); |
af19b491 AKS |
646 | |
647 | return 0; | |
648 | } | |
649 | ||
650 | static void get_brd_name(struct qlcnic_adapter *adapter, char *name) | |
651 | { | |
652 | struct pci_dev *pdev = adapter->pdev; | |
653 | int i, found = 0; | |
654 | ||
655 | for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) { | |
656 | if (qlcnic_boards[i].vendor == pdev->vendor && | |
657 | qlcnic_boards[i].device == pdev->device && | |
658 | qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor && | |
659 | qlcnic_boards[i].sub_device == pdev->subsystem_device) { | |
02f6e46f SC |
660 | sprintf(name, "%pM: %s" , |
661 | adapter->mac_addr, | |
662 | qlcnic_boards[i].short_name); | |
af19b491 AKS |
663 | found = 1; |
664 | break; | |
665 | } | |
666 | ||
667 | } | |
668 | ||
669 | if (!found) | |
7f9a0c34 | 670 | sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr); |
af19b491 AKS |
671 | } |
672 | ||
673 | static void | |
674 | qlcnic_check_options(struct qlcnic_adapter *adapter) | |
675 | { | |
676 | u32 fw_major, fw_minor, fw_build; | |
677 | char brd_name[QLCNIC_MAX_BOARD_NAME_LEN]; | |
678 | char serial_num[32]; | |
679 | int i, offset, val; | |
680 | int *ptr32; | |
681 | struct pci_dev *pdev = adapter->pdev; | |
682 | ||
683 | adapter->driver_mismatch = 0; | |
684 | ||
685 | ptr32 = (int *)&serial_num; | |
686 | offset = QLCNIC_FW_SERIAL_NUM_OFFSET; | |
687 | for (i = 0; i < 8; i++) { | |
688 | if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) { | |
689 | dev_err(&pdev->dev, "error reading board info\n"); | |
690 | adapter->driver_mismatch = 1; | |
691 | return; | |
692 | } | |
693 | ptr32[i] = cpu_to_le32(val); | |
694 | offset += sizeof(u32); | |
695 | } | |
696 | ||
697 | fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR); | |
698 | fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR); | |
699 | fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB); | |
700 | ||
701 | adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build); | |
702 | ||
703 | if (adapter->portnum == 0) { | |
704 | get_brd_name(adapter, brd_name); | |
705 | ||
706 | pr_info("%s: %s Board Chip rev 0x%x\n", | |
707 | module_name(THIS_MODULE), | |
708 | brd_name, adapter->ahw.revision_id); | |
709 | } | |
710 | ||
251a84c9 AKS |
711 | dev_info(&pdev->dev, "firmware v%d.%d.%d\n", |
712 | fw_major, fw_minor, fw_build); | |
af19b491 | 713 | |
af19b491 AKS |
714 | adapter->flags &= ~QLCNIC_LRO_ENABLED; |
715 | ||
716 | if (adapter->ahw.port_type == QLCNIC_XGBE) { | |
717 | adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; | |
718 | adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; | |
719 | } else if (adapter->ahw.port_type == QLCNIC_GBE) { | |
720 | adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; | |
721 | adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; | |
722 | } | |
723 | ||
0e33c664 AC |
724 | qlcnic_get_nic_info(adapter, adapter->ahw.pci_func); |
725 | ||
af19b491 AKS |
726 | adapter->msix_supported = !!use_msi_x; |
727 | adapter->rss_supported = !!use_msi_x; | |
728 | ||
729 | adapter->num_txd = MAX_CMD_DESCRIPTORS; | |
730 | ||
af19b491 AKS |
731 | adapter->max_rds_rings = 2; |
732 | } | |
733 | ||
734 | static int | |
735 | qlcnic_start_firmware(struct qlcnic_adapter *adapter) | |
736 | { | |
737 | int val, err, first_boot; | |
738 | ||
aa5e18c0 SC |
739 | err = qlcnic_can_start_firmware(adapter); |
740 | if (err < 0) | |
741 | return err; | |
742 | else if (!err) | |
af19b491 AKS |
743 | goto wait_init; |
744 | ||
745 | first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc)); | |
746 | if (first_boot == 0x55555555) | |
747 | /* This is the first boot after power up */ | |
748 | QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC); | |
749 | ||
4d5bdb38 AKS |
750 | if (load_fw_file) |
751 | qlcnic_request_firmware(adapter); | |
8f891387 | 752 | else { |
753 | if (qlcnic_check_flash_fw_ver(adapter)) | |
754 | goto err_out; | |
755 | ||
4d5bdb38 | 756 | adapter->fw_type = QLCNIC_FLASH_ROMIMAGE; |
8f891387 | 757 | } |
af19b491 AKS |
758 | |
759 | err = qlcnic_need_fw_reset(adapter); | |
760 | if (err < 0) | |
761 | goto err_out; | |
762 | if (err == 0) | |
763 | goto wait_init; | |
764 | ||
765 | if (first_boot != 0x55555555) { | |
766 | QLCWR32(adapter, CRB_CMDPEG_STATE, 0); | |
767 | qlcnic_pinit_from_rom(adapter); | |
768 | msleep(1); | |
769 | } | |
770 | ||
af19b491 AKS |
771 | QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0); |
772 | QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0); | |
773 | ||
774 | qlcnic_set_port_mode(adapter); | |
775 | ||
776 | err = qlcnic_load_firmware(adapter); | |
777 | if (err) | |
778 | goto err_out; | |
779 | ||
780 | qlcnic_release_firmware(adapter); | |
781 | ||
782 | val = (_QLCNIC_LINUX_MAJOR << 16) | |
783 | | ((_QLCNIC_LINUX_MINOR << 8)) | |
784 | | (_QLCNIC_LINUX_SUBVERSION); | |
785 | QLCWR32(adapter, CRB_DRIVER_VERSION, val); | |
786 | ||
787 | wait_init: | |
788 | /* Handshake with the card before we register the devices. */ | |
789 | err = qlcnic_phantom_init(adapter); | |
790 | if (err) | |
791 | goto err_out; | |
792 | ||
793 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY); | |
6df900e9 | 794 | qlcnic_idc_debug_info(adapter, 1); |
af19b491 | 795 | |
af19b491 AKS |
796 | qlcnic_check_options(adapter); |
797 | ||
0e33c664 AC |
798 | if (adapter->flags & QLCNIC_ESWITCH_ENABLED && |
799 | adapter->op_mode != QLCNIC_NON_PRIV_FUNC) | |
800 | qlcnic_dev_set_npar_ready(adapter); | |
2e9d722d | 801 | |
af19b491 AKS |
802 | adapter->need_fw_reset = 0; |
803 | ||
a7fc948f AKS |
804 | qlcnic_release_firmware(adapter); |
805 | return 0; | |
af19b491 AKS |
806 | |
807 | err_out: | |
a7fc948f AKS |
808 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED); |
809 | dev_err(&adapter->pdev->dev, "Device state set to failed\n"); | |
af19b491 AKS |
810 | qlcnic_release_firmware(adapter); |
811 | return err; | |
812 | } | |
813 | ||
814 | static int | |
815 | qlcnic_request_irq(struct qlcnic_adapter *adapter) | |
816 | { | |
817 | irq_handler_t handler; | |
818 | struct qlcnic_host_sds_ring *sds_ring; | |
819 | int err, ring; | |
820 | ||
821 | unsigned long flags = 0; | |
822 | struct net_device *netdev = adapter->netdev; | |
823 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
824 | ||
7eb9855d AKS |
825 | if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { |
826 | handler = qlcnic_tmp_intr; | |
827 | if (!QLCNIC_IS_MSI_FAMILY(adapter)) | |
828 | flags |= IRQF_SHARED; | |
829 | ||
830 | } else { | |
831 | if (adapter->flags & QLCNIC_MSIX_ENABLED) | |
832 | handler = qlcnic_msix_intr; | |
833 | else if (adapter->flags & QLCNIC_MSI_ENABLED) | |
834 | handler = qlcnic_msi_intr; | |
835 | else { | |
836 | flags |= IRQF_SHARED; | |
837 | handler = qlcnic_intr; | |
838 | } | |
af19b491 AKS |
839 | } |
840 | adapter->irq = netdev->irq; | |
841 | ||
842 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
843 | sds_ring = &recv_ctx->sds_rings[ring]; | |
844 | sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); | |
845 | err = request_irq(sds_ring->irq, handler, | |
846 | flags, sds_ring->name, sds_ring); | |
847 | if (err) | |
848 | return err; | |
849 | } | |
850 | ||
851 | return 0; | |
852 | } | |
853 | ||
854 | static void | |
855 | qlcnic_free_irq(struct qlcnic_adapter *adapter) | |
856 | { | |
857 | int ring; | |
858 | struct qlcnic_host_sds_ring *sds_ring; | |
859 | ||
860 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
861 | ||
862 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
863 | sds_ring = &recv_ctx->sds_rings[ring]; | |
864 | free_irq(sds_ring->irq, sds_ring); | |
865 | } | |
866 | } | |
867 | ||
868 | static void | |
869 | qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter) | |
870 | { | |
871 | adapter->coal.flags = QLCNIC_INTR_DEFAULT; | |
872 | adapter->coal.normal.data.rx_time_us = | |
873 | QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US; | |
874 | adapter->coal.normal.data.rx_packets = | |
875 | QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS; | |
876 | adapter->coal.normal.data.tx_time_us = | |
877 | QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US; | |
878 | adapter->coal.normal.data.tx_packets = | |
879 | QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS; | |
880 | } | |
881 | ||
882 | static int | |
883 | __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
884 | { | |
885 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
886 | return -EIO; | |
887 | ||
888 | qlcnic_set_multi(netdev); | |
889 | qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu); | |
890 | ||
891 | adapter->ahw.linkup = 0; | |
892 | ||
893 | if (adapter->max_sds_rings > 1) | |
894 | qlcnic_config_rss(adapter, 1); | |
895 | ||
896 | qlcnic_config_intr_coalesce(adapter); | |
897 | ||
898 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) | |
899 | qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED); | |
900 | ||
901 | qlcnic_napi_enable(adapter); | |
902 | ||
903 | qlcnic_linkevent_request(adapter, 1); | |
904 | ||
905 | set_bit(__QLCNIC_DEV_UP, &adapter->state); | |
906 | return 0; | |
907 | } | |
908 | ||
909 | /* Usage: During resume and firmware recovery module.*/ | |
910 | ||
911 | static int | |
912 | qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
913 | { | |
914 | int err = 0; | |
915 | ||
916 | rtnl_lock(); | |
917 | if (netif_running(netdev)) | |
918 | err = __qlcnic_up(adapter, netdev); | |
919 | rtnl_unlock(); | |
920 | ||
921 | return err; | |
922 | } | |
923 | ||
924 | static void | |
925 | __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
926 | { | |
927 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
928 | return; | |
929 | ||
930 | if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
931 | return; | |
932 | ||
933 | smp_mb(); | |
934 | spin_lock(&adapter->tx_clean_lock); | |
935 | netif_carrier_off(netdev); | |
936 | netif_tx_disable(netdev); | |
937 | ||
938 | qlcnic_free_mac_list(adapter); | |
939 | ||
940 | qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE); | |
941 | ||
942 | qlcnic_napi_disable(adapter); | |
943 | ||
944 | qlcnic_release_tx_buffers(adapter); | |
945 | spin_unlock(&adapter->tx_clean_lock); | |
946 | } | |
947 | ||
948 | /* Usage: During suspend and firmware recovery module */ | |
949 | ||
950 | static void | |
951 | qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
952 | { | |
953 | rtnl_lock(); | |
954 | if (netif_running(netdev)) | |
955 | __qlcnic_down(adapter, netdev); | |
956 | rtnl_unlock(); | |
957 | ||
958 | } | |
959 | ||
960 | static int | |
961 | qlcnic_attach(struct qlcnic_adapter *adapter) | |
962 | { | |
963 | struct net_device *netdev = adapter->netdev; | |
964 | struct pci_dev *pdev = adapter->pdev; | |
965 | int err, ring; | |
966 | struct qlcnic_host_rds_ring *rds_ring; | |
967 | ||
968 | if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) | |
969 | return 0; | |
970 | ||
971 | err = qlcnic_init_firmware(adapter); | |
972 | if (err) | |
973 | return err; | |
974 | ||
975 | err = qlcnic_napi_add(adapter, netdev); | |
976 | if (err) | |
977 | return err; | |
978 | ||
979 | err = qlcnic_alloc_sw_resources(adapter); | |
980 | if (err) { | |
981 | dev_err(&pdev->dev, "Error in setting sw resources\n"); | |
982 | return err; | |
983 | } | |
984 | ||
985 | err = qlcnic_alloc_hw_resources(adapter); | |
986 | if (err) { | |
987 | dev_err(&pdev->dev, "Error in setting hw resources\n"); | |
988 | goto err_out_free_sw; | |
989 | } | |
990 | ||
991 | ||
992 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { | |
993 | rds_ring = &adapter->recv_ctx.rds_rings[ring]; | |
994 | qlcnic_post_rx_buffers(adapter, ring, rds_ring); | |
995 | } | |
996 | ||
997 | err = qlcnic_request_irq(adapter); | |
998 | if (err) { | |
999 | dev_err(&pdev->dev, "failed to setup interrupt\n"); | |
1000 | goto err_out_free_rxbuf; | |
1001 | } | |
1002 | ||
1003 | qlcnic_init_coalesce_defaults(adapter); | |
1004 | ||
1005 | qlcnic_create_sysfs_entries(adapter); | |
1006 | ||
1007 | adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC; | |
1008 | return 0; | |
1009 | ||
1010 | err_out_free_rxbuf: | |
1011 | qlcnic_release_rx_buffers(adapter); | |
1012 | qlcnic_free_hw_resources(adapter); | |
1013 | err_out_free_sw: | |
1014 | qlcnic_free_sw_resources(adapter); | |
1015 | return err; | |
1016 | } | |
1017 | ||
1018 | static void | |
1019 | qlcnic_detach(struct qlcnic_adapter *adapter) | |
1020 | { | |
1021 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
1022 | return; | |
1023 | ||
1024 | qlcnic_remove_sysfs_entries(adapter); | |
1025 | ||
1026 | qlcnic_free_hw_resources(adapter); | |
1027 | qlcnic_release_rx_buffers(adapter); | |
1028 | qlcnic_free_irq(adapter); | |
1029 | qlcnic_napi_del(adapter); | |
1030 | qlcnic_free_sw_resources(adapter); | |
1031 | ||
1032 | adapter->is_up = 0; | |
1033 | } | |
1034 | ||
7eb9855d AKS |
1035 | void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings) |
1036 | { | |
1037 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1038 | struct qlcnic_host_sds_ring *sds_ring; | |
1039 | int ring; | |
1040 | ||
78ad3892 | 1041 | clear_bit(__QLCNIC_DEV_UP, &adapter->state); |
cdaff185 AKS |
1042 | if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { |
1043 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1044 | sds_ring = &adapter->recv_ctx.sds_rings[ring]; | |
1045 | qlcnic_disable_int(sds_ring); | |
1046 | } | |
7eb9855d AKS |
1047 | } |
1048 | ||
1049 | qlcnic_detach(adapter); | |
1050 | ||
1051 | adapter->diag_test = 0; | |
1052 | adapter->max_sds_rings = max_sds_rings; | |
1053 | ||
1054 | if (qlcnic_attach(adapter)) | |
34ce3626 | 1055 | goto out; |
7eb9855d AKS |
1056 | |
1057 | if (netif_running(netdev)) | |
1058 | __qlcnic_up(adapter, netdev); | |
34ce3626 | 1059 | out: |
7eb9855d AKS |
1060 | netif_device_attach(netdev); |
1061 | } | |
1062 | ||
1063 | int qlcnic_diag_alloc_res(struct net_device *netdev, int test) | |
1064 | { | |
1065 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1066 | struct qlcnic_host_sds_ring *sds_ring; | |
1067 | int ring; | |
1068 | int ret; | |
1069 | ||
1070 | netif_device_detach(netdev); | |
1071 | ||
1072 | if (netif_running(netdev)) | |
1073 | __qlcnic_down(adapter, netdev); | |
1074 | ||
1075 | qlcnic_detach(adapter); | |
1076 | ||
1077 | adapter->max_sds_rings = 1; | |
1078 | adapter->diag_test = test; | |
1079 | ||
1080 | ret = qlcnic_attach(adapter); | |
34ce3626 AKS |
1081 | if (ret) { |
1082 | netif_device_attach(netdev); | |
7eb9855d | 1083 | return ret; |
34ce3626 | 1084 | } |
7eb9855d | 1085 | |
cdaff185 AKS |
1086 | if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { |
1087 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
1088 | sds_ring = &adapter->recv_ctx.sds_rings[ring]; | |
1089 | qlcnic_enable_int(sds_ring); | |
1090 | } | |
7eb9855d | 1091 | } |
78ad3892 | 1092 | set_bit(__QLCNIC_DEV_UP, &adapter->state); |
7eb9855d AKS |
1093 | |
1094 | return 0; | |
1095 | } | |
1096 | ||
af19b491 AKS |
1097 | int |
1098 | qlcnic_reset_context(struct qlcnic_adapter *adapter) | |
1099 | { | |
1100 | int err = 0; | |
1101 | struct net_device *netdev = adapter->netdev; | |
1102 | ||
1103 | if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) | |
1104 | return -EBUSY; | |
1105 | ||
1106 | if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) { | |
1107 | ||
1108 | netif_device_detach(netdev); | |
1109 | ||
1110 | if (netif_running(netdev)) | |
1111 | __qlcnic_down(adapter, netdev); | |
1112 | ||
1113 | qlcnic_detach(adapter); | |
1114 | ||
1115 | if (netif_running(netdev)) { | |
1116 | err = qlcnic_attach(adapter); | |
1117 | if (!err) | |
34ce3626 | 1118 | __qlcnic_up(adapter, netdev); |
af19b491 AKS |
1119 | } |
1120 | ||
1121 | netif_device_attach(netdev); | |
1122 | } | |
1123 | ||
af19b491 AKS |
1124 | clear_bit(__QLCNIC_RESETTING, &adapter->state); |
1125 | return err; | |
1126 | } | |
1127 | ||
1128 | static int | |
1129 | qlcnic_setup_netdev(struct qlcnic_adapter *adapter, | |
1bb09fb9 | 1130 | struct net_device *netdev, u8 pci_using_dac) |
af19b491 AKS |
1131 | { |
1132 | int err; | |
1133 | struct pci_dev *pdev = adapter->pdev; | |
1134 | ||
1135 | adapter->rx_csum = 1; | |
1136 | adapter->mc_enabled = 0; | |
1137 | adapter->max_mc_count = 38; | |
1138 | ||
1139 | netdev->netdev_ops = &qlcnic_netdev_ops; | |
1140 | netdev->watchdog_timeo = 2*HZ; | |
1141 | ||
1142 | qlcnic_change_mtu(netdev, netdev->mtu); | |
1143 | ||
1144 | SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops); | |
1145 | ||
2e9d722d AC |
1146 | netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | |
1147 | NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6); | |
af19b491 | 1148 | |
2e9d722d AC |
1149 | netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | |
1150 | NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6); | |
af19b491 | 1151 | |
1bb09fb9 | 1152 | if (pci_using_dac) { |
af19b491 AKS |
1153 | netdev->features |= NETIF_F_HIGHDMA; |
1154 | netdev->vlan_features |= NETIF_F_HIGHDMA; | |
1155 | } | |
1156 | ||
1157 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX) | |
1158 | netdev->features |= (NETIF_F_HW_VLAN_TX); | |
1159 | ||
1160 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) | |
1161 | netdev->features |= NETIF_F_LRO; | |
1162 | ||
1163 | netdev->irq = adapter->msix_entries[0].vector; | |
1164 | ||
1165 | INIT_WORK(&adapter->tx_timeout_task, qlcnic_tx_timeout_task); | |
1166 | ||
1167 | if (qlcnic_read_mac_addr(adapter)) | |
1168 | dev_warn(&pdev->dev, "failed to read mac addr\n"); | |
1169 | ||
1170 | netif_carrier_off(netdev); | |
1171 | netif_stop_queue(netdev); | |
1172 | ||
1173 | err = register_netdev(netdev); | |
1174 | if (err) { | |
1175 | dev_err(&pdev->dev, "failed to register net device\n"); | |
1176 | return err; | |
1177 | } | |
1178 | ||
1179 | return 0; | |
1180 | } | |
1181 | ||
1bb09fb9 AKS |
1182 | static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac) |
1183 | { | |
1184 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && | |
1185 | !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) | |
1186 | *pci_using_dac = 1; | |
1187 | else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) && | |
1188 | !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) | |
1189 | *pci_using_dac = 0; | |
1190 | else { | |
1191 | dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n"); | |
1192 | return -EIO; | |
1193 | } | |
1194 | ||
1195 | return 0; | |
1196 | } | |
1197 | ||
af19b491 AKS |
1198 | static int __devinit |
1199 | qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
1200 | { | |
1201 | struct net_device *netdev = NULL; | |
1202 | struct qlcnic_adapter *adapter = NULL; | |
1203 | int err; | |
af19b491 | 1204 | uint8_t revision_id; |
1bb09fb9 | 1205 | uint8_t pci_using_dac; |
af19b491 AKS |
1206 | |
1207 | err = pci_enable_device(pdev); | |
1208 | if (err) | |
1209 | return err; | |
1210 | ||
1211 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
1212 | err = -ENODEV; | |
1213 | goto err_out_disable_pdev; | |
1214 | } | |
1215 | ||
1bb09fb9 AKS |
1216 | err = qlcnic_set_dma_mask(pdev, &pci_using_dac); |
1217 | if (err) | |
1218 | goto err_out_disable_pdev; | |
1219 | ||
af19b491 AKS |
1220 | err = pci_request_regions(pdev, qlcnic_driver_name); |
1221 | if (err) | |
1222 | goto err_out_disable_pdev; | |
1223 | ||
1224 | pci_set_master(pdev); | |
1225 | ||
1226 | netdev = alloc_etherdev(sizeof(struct qlcnic_adapter)); | |
1227 | if (!netdev) { | |
1228 | dev_err(&pdev->dev, "failed to allocate net_device\n"); | |
1229 | err = -ENOMEM; | |
1230 | goto err_out_free_res; | |
1231 | } | |
1232 | ||
1233 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
1234 | ||
1235 | adapter = netdev_priv(netdev); | |
1236 | adapter->netdev = netdev; | |
1237 | adapter->pdev = pdev; | |
6df900e9 | 1238 | adapter->dev_rst_time = jiffies; |
af19b491 AKS |
1239 | |
1240 | revision_id = pdev->revision; | |
1241 | adapter->ahw.revision_id = revision_id; | |
1242 | ||
1243 | rwlock_init(&adapter->ahw.crb_lock); | |
1244 | mutex_init(&adapter->ahw.mem_lock); | |
1245 | ||
1246 | spin_lock_init(&adapter->tx_clean_lock); | |
1247 | INIT_LIST_HEAD(&adapter->mac_list); | |
1248 | ||
1249 | err = qlcnic_setup_pci_map(adapter); | |
1250 | if (err) | |
1251 | goto err_out_free_netdev; | |
1252 | ||
1253 | /* This will be reset for mezz cards */ | |
2e9d722d | 1254 | adapter->portnum = adapter->ahw.pci_func; |
af19b491 AKS |
1255 | |
1256 | err = qlcnic_get_board_info(adapter); | |
1257 | if (err) { | |
1258 | dev_err(&pdev->dev, "Error getting board config info.\n"); | |
1259 | goto err_out_iounmap; | |
1260 | } | |
1261 | ||
02f6e46f SC |
1262 | if (qlcnic_read_mac_addr(adapter)) |
1263 | dev_warn(&pdev->dev, "failed to read mac addr\n"); | |
1264 | ||
b3a24649 SC |
1265 | if (qlcnic_setup_idc_param(adapter)) |
1266 | goto err_out_iounmap; | |
af19b491 | 1267 | |
9f26f547 | 1268 | err = adapter->nic_ops->start_firmware(adapter); |
a7fc948f AKS |
1269 | if (err) { |
1270 | dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"); | |
af19b491 | 1271 | goto err_out_decr_ref; |
a7fc948f | 1272 | } |
af19b491 | 1273 | |
af19b491 AKS |
1274 | qlcnic_clear_stats(adapter); |
1275 | ||
1276 | qlcnic_setup_intr(adapter); | |
1277 | ||
1bb09fb9 | 1278 | err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac); |
af19b491 AKS |
1279 | if (err) |
1280 | goto err_out_disable_msi; | |
1281 | ||
1282 | pci_set_drvdata(pdev, adapter); | |
1283 | ||
1284 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); | |
1285 | ||
1286 | switch (adapter->ahw.port_type) { | |
1287 | case QLCNIC_GBE: | |
1288 | dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", | |
1289 | adapter->netdev->name); | |
1290 | break; | |
1291 | case QLCNIC_XGBE: | |
1292 | dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", | |
1293 | adapter->netdev->name); | |
1294 | break; | |
1295 | } | |
1296 | ||
1297 | qlcnic_create_diag_entries(adapter); | |
1298 | ||
1299 | return 0; | |
1300 | ||
1301 | err_out_disable_msi: | |
1302 | qlcnic_teardown_intr(adapter); | |
1303 | ||
1304 | err_out_decr_ref: | |
1305 | qlcnic_clr_all_drv_state(adapter); | |
1306 | ||
1307 | err_out_iounmap: | |
1308 | qlcnic_cleanup_pci_map(adapter); | |
1309 | ||
1310 | err_out_free_netdev: | |
1311 | free_netdev(netdev); | |
1312 | ||
1313 | err_out_free_res: | |
1314 | pci_release_regions(pdev); | |
1315 | ||
1316 | err_out_disable_pdev: | |
1317 | pci_set_drvdata(pdev, NULL); | |
1318 | pci_disable_device(pdev); | |
1319 | return err; | |
1320 | } | |
1321 | ||
1322 | static void __devexit qlcnic_remove(struct pci_dev *pdev) | |
1323 | { | |
1324 | struct qlcnic_adapter *adapter; | |
1325 | struct net_device *netdev; | |
1326 | ||
1327 | adapter = pci_get_drvdata(pdev); | |
1328 | if (adapter == NULL) | |
1329 | return; | |
1330 | ||
1331 | netdev = adapter->netdev; | |
1332 | ||
1333 | qlcnic_cancel_fw_work(adapter); | |
1334 | ||
1335 | unregister_netdev(netdev); | |
1336 | ||
1337 | cancel_work_sync(&adapter->tx_timeout_task); | |
1338 | ||
1339 | qlcnic_detach(adapter); | |
1340 | ||
2e9d722d AC |
1341 | if (adapter->npars != NULL) |
1342 | kfree(adapter->npars); | |
1343 | if (adapter->eswitch != NULL) | |
1344 | kfree(adapter->eswitch); | |
1345 | ||
af19b491 AKS |
1346 | qlcnic_clr_all_drv_state(adapter); |
1347 | ||
1348 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1349 | ||
1350 | qlcnic_teardown_intr(adapter); | |
1351 | ||
1352 | qlcnic_remove_diag_entries(adapter); | |
1353 | ||
1354 | qlcnic_cleanup_pci_map(adapter); | |
1355 | ||
1356 | qlcnic_release_firmware(adapter); | |
1357 | ||
1358 | pci_release_regions(pdev); | |
1359 | pci_disable_device(pdev); | |
1360 | pci_set_drvdata(pdev, NULL); | |
1361 | ||
1362 | free_netdev(netdev); | |
1363 | } | |
1364 | static int __qlcnic_shutdown(struct pci_dev *pdev) | |
1365 | { | |
1366 | struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); | |
1367 | struct net_device *netdev = adapter->netdev; | |
1368 | int retval; | |
1369 | ||
1370 | netif_device_detach(netdev); | |
1371 | ||
1372 | qlcnic_cancel_fw_work(adapter); | |
1373 | ||
1374 | if (netif_running(netdev)) | |
1375 | qlcnic_down(adapter, netdev); | |
1376 | ||
1377 | cancel_work_sync(&adapter->tx_timeout_task); | |
1378 | ||
1379 | qlcnic_detach(adapter); | |
1380 | ||
1381 | qlcnic_clr_all_drv_state(adapter); | |
1382 | ||
1383 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1384 | ||
1385 | retval = pci_save_state(pdev); | |
1386 | if (retval) | |
1387 | return retval; | |
1388 | ||
1389 | if (qlcnic_wol_supported(adapter)) { | |
1390 | pci_enable_wake(pdev, PCI_D3cold, 1); | |
1391 | pci_enable_wake(pdev, PCI_D3hot, 1); | |
1392 | } | |
1393 | ||
1394 | return 0; | |
1395 | } | |
1396 | ||
1397 | static void qlcnic_shutdown(struct pci_dev *pdev) | |
1398 | { | |
1399 | if (__qlcnic_shutdown(pdev)) | |
1400 | return; | |
1401 | ||
1402 | pci_disable_device(pdev); | |
1403 | } | |
1404 | ||
1405 | #ifdef CONFIG_PM | |
1406 | static int | |
1407 | qlcnic_suspend(struct pci_dev *pdev, pm_message_t state) | |
1408 | { | |
1409 | int retval; | |
1410 | ||
1411 | retval = __qlcnic_shutdown(pdev); | |
1412 | if (retval) | |
1413 | return retval; | |
1414 | ||
1415 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
1416 | return 0; | |
1417 | } | |
1418 | ||
1419 | static int | |
1420 | qlcnic_resume(struct pci_dev *pdev) | |
1421 | { | |
1422 | struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); | |
1423 | struct net_device *netdev = adapter->netdev; | |
1424 | int err; | |
1425 | ||
1426 | err = pci_enable_device(pdev); | |
1427 | if (err) | |
1428 | return err; | |
1429 | ||
1430 | pci_set_power_state(pdev, PCI_D0); | |
1431 | pci_set_master(pdev); | |
1432 | pci_restore_state(pdev); | |
1433 | ||
9f26f547 | 1434 | err = adapter->nic_ops->start_firmware(adapter); |
af19b491 AKS |
1435 | if (err) { |
1436 | dev_err(&pdev->dev, "failed to start firmware\n"); | |
1437 | return err; | |
1438 | } | |
1439 | ||
1440 | if (netif_running(netdev)) { | |
1441 | err = qlcnic_attach(adapter); | |
1442 | if (err) | |
1443 | goto err_out; | |
1444 | ||
1445 | err = qlcnic_up(adapter, netdev); | |
1446 | if (err) | |
1447 | goto err_out_detach; | |
1448 | ||
1449 | ||
1450 | qlcnic_config_indev_addr(netdev, NETDEV_UP); | |
1451 | } | |
1452 | ||
1453 | netif_device_attach(netdev); | |
1454 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); | |
1455 | return 0; | |
1456 | ||
1457 | err_out_detach: | |
1458 | qlcnic_detach(adapter); | |
1459 | err_out: | |
1460 | qlcnic_clr_all_drv_state(adapter); | |
34ce3626 | 1461 | netif_device_attach(netdev); |
af19b491 AKS |
1462 | return err; |
1463 | } | |
1464 | #endif | |
1465 | ||
1466 | static int qlcnic_open(struct net_device *netdev) | |
1467 | { | |
1468 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1469 | int err; | |
1470 | ||
1471 | if (adapter->driver_mismatch) | |
1472 | return -EIO; | |
1473 | ||
1474 | err = qlcnic_attach(adapter); | |
1475 | if (err) | |
1476 | return err; | |
1477 | ||
1478 | err = __qlcnic_up(adapter, netdev); | |
1479 | if (err) | |
1480 | goto err_out; | |
1481 | ||
1482 | netif_start_queue(netdev); | |
1483 | ||
1484 | return 0; | |
1485 | ||
1486 | err_out: | |
1487 | qlcnic_detach(adapter); | |
1488 | return err; | |
1489 | } | |
1490 | ||
1491 | /* | |
1492 | * qlcnic_close - Disables a network interface entry point | |
1493 | */ | |
1494 | static int qlcnic_close(struct net_device *netdev) | |
1495 | { | |
1496 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1497 | ||
1498 | __qlcnic_down(adapter, netdev); | |
1499 | return 0; | |
1500 | } | |
1501 | ||
1502 | static void | |
1503 | qlcnic_tso_check(struct net_device *netdev, | |
1504 | struct qlcnic_host_tx_ring *tx_ring, | |
1505 | struct cmd_desc_type0 *first_desc, | |
1506 | struct sk_buff *skb) | |
1507 | { | |
1508 | u8 opcode = TX_ETHER_PKT; | |
1509 | __be16 protocol = skb->protocol; | |
1510 | u16 flags = 0, vid = 0; | |
af19b491 AKS |
1511 | int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; |
1512 | struct cmd_desc_type0 *hwdesc; | |
1513 | struct vlan_ethhdr *vh; | |
8bfe8b91 | 1514 | struct qlcnic_adapter *adapter = netdev_priv(netdev); |
2e9d722d | 1515 | u32 producer = tx_ring->producer; |
af19b491 AKS |
1516 | |
1517 | if (protocol == cpu_to_be16(ETH_P_8021Q)) { | |
1518 | ||
1519 | vh = (struct vlan_ethhdr *)skb->data; | |
1520 | protocol = vh->h_vlan_encapsulated_proto; | |
1521 | flags = FLAGS_VLAN_TAGGED; | |
1522 | ||
1523 | } else if (vlan_tx_tag_present(skb)) { | |
1524 | ||
1525 | flags = FLAGS_VLAN_OOB; | |
1526 | vid = vlan_tx_tag_get(skb); | |
1527 | qlcnic_set_tx_vlan_tci(first_desc, vid); | |
1528 | vlan_oob = 1; | |
1529 | } | |
1530 | ||
2e9d722d AC |
1531 | if (*(skb->data) & BIT_0) { |
1532 | flags |= BIT_0; | |
1533 | memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN); | |
1534 | } | |
1535 | ||
af19b491 AKS |
1536 | if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && |
1537 | skb_shinfo(skb)->gso_size > 0) { | |
1538 | ||
1539 | hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); | |
1540 | ||
1541 | first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); | |
1542 | first_desc->total_hdr_length = hdr_len; | |
1543 | if (vlan_oob) { | |
1544 | first_desc->total_hdr_length += VLAN_HLEN; | |
1545 | first_desc->tcp_hdr_offset = VLAN_HLEN; | |
1546 | first_desc->ip_hdr_offset = VLAN_HLEN; | |
1547 | /* Only in case of TSO on vlan device */ | |
1548 | flags |= FLAGS_VLAN_TAGGED; | |
1549 | } | |
1550 | ||
1551 | opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? | |
1552 | TX_TCP_LSO6 : TX_TCP_LSO; | |
1553 | tso = 1; | |
1554 | ||
1555 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
1556 | u8 l4proto; | |
1557 | ||
1558 | if (protocol == cpu_to_be16(ETH_P_IP)) { | |
1559 | l4proto = ip_hdr(skb)->protocol; | |
1560 | ||
1561 | if (l4proto == IPPROTO_TCP) | |
1562 | opcode = TX_TCP_PKT; | |
1563 | else if (l4proto == IPPROTO_UDP) | |
1564 | opcode = TX_UDP_PKT; | |
1565 | } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { | |
1566 | l4proto = ipv6_hdr(skb)->nexthdr; | |
1567 | ||
1568 | if (l4proto == IPPROTO_TCP) | |
1569 | opcode = TX_TCPV6_PKT; | |
1570 | else if (l4proto == IPPROTO_UDP) | |
1571 | opcode = TX_UDPV6_PKT; | |
1572 | } | |
1573 | } | |
1574 | ||
1575 | first_desc->tcp_hdr_offset += skb_transport_offset(skb); | |
1576 | first_desc->ip_hdr_offset += skb_network_offset(skb); | |
1577 | qlcnic_set_tx_flags_opcode(first_desc, flags, opcode); | |
1578 | ||
1579 | if (!tso) | |
1580 | return; | |
1581 | ||
1582 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
1583 | * the descriptor ring | |
1584 | */ | |
af19b491 AKS |
1585 | copied = 0; |
1586 | offset = 2; | |
1587 | ||
1588 | if (vlan_oob) { | |
1589 | /* Create a TSO vlan header template for firmware */ | |
1590 | ||
1591 | hwdesc = &tx_ring->desc_head[producer]; | |
1592 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
1593 | ||
1594 | copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, | |
1595 | hdr_len + VLAN_HLEN); | |
1596 | ||
1597 | vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); | |
1598 | skb_copy_from_linear_data(skb, vh, 12); | |
1599 | vh->h_vlan_proto = htons(ETH_P_8021Q); | |
1600 | vh->h_vlan_TCI = htons(vid); | |
1601 | skb_copy_from_linear_data_offset(skb, 12, | |
1602 | (char *)vh + 16, copy_len - 16); | |
1603 | ||
1604 | copied = copy_len - VLAN_HLEN; | |
1605 | offset = 0; | |
1606 | ||
1607 | producer = get_next_index(producer, tx_ring->num_desc); | |
1608 | } | |
1609 | ||
1610 | while (copied < hdr_len) { | |
1611 | ||
1612 | copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, | |
1613 | (hdr_len - copied)); | |
1614 | ||
1615 | hwdesc = &tx_ring->desc_head[producer]; | |
1616 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
1617 | ||
1618 | skb_copy_from_linear_data_offset(skb, copied, | |
1619 | (char *)hwdesc + offset, copy_len); | |
1620 | ||
1621 | copied += copy_len; | |
1622 | offset = 0; | |
1623 | ||
1624 | producer = get_next_index(producer, tx_ring->num_desc); | |
1625 | } | |
1626 | ||
1627 | tx_ring->producer = producer; | |
1628 | barrier(); | |
8bfe8b91 | 1629 | adapter->stats.lso_frames++; |
af19b491 AKS |
1630 | } |
1631 | ||
1632 | static int | |
1633 | qlcnic_map_tx_skb(struct pci_dev *pdev, | |
1634 | struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf) | |
1635 | { | |
1636 | struct qlcnic_skb_frag *nf; | |
1637 | struct skb_frag_struct *frag; | |
1638 | int i, nr_frags; | |
1639 | dma_addr_t map; | |
1640 | ||
1641 | nr_frags = skb_shinfo(skb)->nr_frags; | |
1642 | nf = &pbuf->frag_array[0]; | |
1643 | ||
1644 | map = pci_map_single(pdev, skb->data, | |
1645 | skb_headlen(skb), PCI_DMA_TODEVICE); | |
1646 | if (pci_dma_mapping_error(pdev, map)) | |
1647 | goto out_err; | |
1648 | ||
1649 | nf->dma = map; | |
1650 | nf->length = skb_headlen(skb); | |
1651 | ||
1652 | for (i = 0; i < nr_frags; i++) { | |
1653 | frag = &skb_shinfo(skb)->frags[i]; | |
1654 | nf = &pbuf->frag_array[i+1]; | |
1655 | ||
1656 | map = pci_map_page(pdev, frag->page, frag->page_offset, | |
1657 | frag->size, PCI_DMA_TODEVICE); | |
1658 | if (pci_dma_mapping_error(pdev, map)) | |
1659 | goto unwind; | |
1660 | ||
1661 | nf->dma = map; | |
1662 | nf->length = frag->size; | |
1663 | } | |
1664 | ||
1665 | return 0; | |
1666 | ||
1667 | unwind: | |
1668 | while (--i >= 0) { | |
1669 | nf = &pbuf->frag_array[i+1]; | |
1670 | pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); | |
1671 | } | |
1672 | ||
1673 | nf = &pbuf->frag_array[0]; | |
1674 | pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); | |
1675 | ||
1676 | out_err: | |
1677 | return -ENOMEM; | |
1678 | } | |
1679 | ||
1680 | static inline void | |
1681 | qlcnic_clear_cmddesc(u64 *desc) | |
1682 | { | |
1683 | desc[0] = 0ULL; | |
1684 | desc[2] = 0ULL; | |
1685 | } | |
1686 | ||
cdaff185 | 1687 | netdev_tx_t |
af19b491 AKS |
1688 | qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
1689 | { | |
1690 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1691 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; | |
1692 | struct qlcnic_cmd_buffer *pbuf; | |
1693 | struct qlcnic_skb_frag *buffrag; | |
1694 | struct cmd_desc_type0 *hwdesc, *first_desc; | |
1695 | struct pci_dev *pdev; | |
1696 | int i, k; | |
1697 | ||
1698 | u32 producer; | |
1699 | int frag_count, no_of_desc; | |
1700 | u32 num_txd = tx_ring->num_desc; | |
1701 | ||
780ab790 AKS |
1702 | if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) { |
1703 | netif_stop_queue(netdev); | |
1704 | return NETDEV_TX_BUSY; | |
1705 | } | |
1706 | ||
af19b491 AKS |
1707 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
1708 | ||
1709 | /* 4 fragments per cmd des */ | |
1710 | no_of_desc = (frag_count + 3) >> 2; | |
1711 | ||
1712 | if (unlikely(no_of_desc + 2 > qlcnic_tx_avail(tx_ring))) { | |
1713 | netif_stop_queue(netdev); | |
8bfe8b91 | 1714 | adapter->stats.xmit_off++; |
af19b491 AKS |
1715 | return NETDEV_TX_BUSY; |
1716 | } | |
1717 | ||
1718 | producer = tx_ring->producer; | |
1719 | pbuf = &tx_ring->cmd_buf_arr[producer]; | |
1720 | ||
1721 | pdev = adapter->pdev; | |
1722 | ||
8ae6df97 AKS |
1723 | if (qlcnic_map_tx_skb(pdev, skb, pbuf)) { |
1724 | adapter->stats.tx_dma_map_error++; | |
af19b491 | 1725 | goto drop_packet; |
8ae6df97 | 1726 | } |
af19b491 AKS |
1727 | |
1728 | pbuf->skb = skb; | |
1729 | pbuf->frag_count = frag_count; | |
1730 | ||
1731 | first_desc = hwdesc = &tx_ring->desc_head[producer]; | |
1732 | qlcnic_clear_cmddesc((u64 *)hwdesc); | |
1733 | ||
1734 | qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len); | |
1735 | qlcnic_set_tx_port(first_desc, adapter->portnum); | |
1736 | ||
1737 | for (i = 0; i < frag_count; i++) { | |
1738 | ||
1739 | k = i % 4; | |
1740 | ||
1741 | if ((k == 0) && (i > 0)) { | |
1742 | /* move to next desc.*/ | |
1743 | producer = get_next_index(producer, num_txd); | |
1744 | hwdesc = &tx_ring->desc_head[producer]; | |
1745 | qlcnic_clear_cmddesc((u64 *)hwdesc); | |
1746 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
1747 | } | |
1748 | ||
1749 | buffrag = &pbuf->frag_array[i]; | |
1750 | ||
1751 | hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); | |
1752 | switch (k) { | |
1753 | case 0: | |
1754 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
1755 | break; | |
1756 | case 1: | |
1757 | hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); | |
1758 | break; | |
1759 | case 2: | |
1760 | hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); | |
1761 | break; | |
1762 | case 3: | |
1763 | hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); | |
1764 | break; | |
1765 | } | |
1766 | } | |
1767 | ||
1768 | tx_ring->producer = get_next_index(producer, num_txd); | |
1769 | ||
1770 | qlcnic_tso_check(netdev, tx_ring, first_desc, skb); | |
1771 | ||
1772 | qlcnic_update_cmd_producer(adapter, tx_ring); | |
1773 | ||
1774 | adapter->stats.txbytes += skb->len; | |
1775 | adapter->stats.xmitcalled++; | |
1776 | ||
1777 | return NETDEV_TX_OK; | |
1778 | ||
1779 | drop_packet: | |
1780 | adapter->stats.txdropped++; | |
1781 | dev_kfree_skb_any(skb); | |
1782 | return NETDEV_TX_OK; | |
1783 | } | |
1784 | ||
1785 | static int qlcnic_check_temp(struct qlcnic_adapter *adapter) | |
1786 | { | |
1787 | struct net_device *netdev = adapter->netdev; | |
1788 | u32 temp, temp_state, temp_val; | |
1789 | int rv = 0; | |
1790 | ||
1791 | temp = QLCRD32(adapter, CRB_TEMP_STATE); | |
1792 | ||
1793 | temp_state = qlcnic_get_temp_state(temp); | |
1794 | temp_val = qlcnic_get_temp_val(temp); | |
1795 | ||
1796 | if (temp_state == QLCNIC_TEMP_PANIC) { | |
1797 | dev_err(&netdev->dev, | |
1798 | "Device temperature %d degrees C exceeds" | |
1799 | " maximum allowed. Hardware has been shut down.\n", | |
1800 | temp_val); | |
1801 | rv = 1; | |
1802 | } else if (temp_state == QLCNIC_TEMP_WARN) { | |
1803 | if (adapter->temp == QLCNIC_TEMP_NORMAL) { | |
1804 | dev_err(&netdev->dev, | |
1805 | "Device temperature %d degrees C " | |
1806 | "exceeds operating range." | |
1807 | " Immediate action needed.\n", | |
1808 | temp_val); | |
1809 | } | |
1810 | } else { | |
1811 | if (adapter->temp == QLCNIC_TEMP_WARN) { | |
1812 | dev_info(&netdev->dev, | |
1813 | "Device temperature is now %d degrees C" | |
1814 | " in normal range.\n", temp_val); | |
1815 | } | |
1816 | } | |
1817 | adapter->temp = temp_state; | |
1818 | return rv; | |
1819 | } | |
1820 | ||
1821 | void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup) | |
1822 | { | |
1823 | struct net_device *netdev = adapter->netdev; | |
1824 | ||
1825 | if (adapter->ahw.linkup && !linkup) { | |
1826 | dev_info(&netdev->dev, "NIC Link is down\n"); | |
1827 | adapter->ahw.linkup = 0; | |
1828 | if (netif_running(netdev)) { | |
1829 | netif_carrier_off(netdev); | |
1830 | netif_stop_queue(netdev); | |
1831 | } | |
1832 | } else if (!adapter->ahw.linkup && linkup) { | |
1833 | dev_info(&netdev->dev, "NIC Link is up\n"); | |
1834 | adapter->ahw.linkup = 1; | |
1835 | if (netif_running(netdev)) { | |
1836 | netif_carrier_on(netdev); | |
1837 | netif_wake_queue(netdev); | |
1838 | } | |
1839 | } | |
1840 | } | |
1841 | ||
1842 | static void qlcnic_tx_timeout(struct net_device *netdev) | |
1843 | { | |
1844 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1845 | ||
1846 | if (test_bit(__QLCNIC_RESETTING, &adapter->state)) | |
1847 | return; | |
1848 | ||
1849 | dev_err(&netdev->dev, "transmit timeout, resetting.\n"); | |
1850 | schedule_work(&adapter->tx_timeout_task); | |
1851 | } | |
1852 | ||
1853 | static void qlcnic_tx_timeout_task(struct work_struct *work) | |
1854 | { | |
1855 | struct qlcnic_adapter *adapter = | |
1856 | container_of(work, struct qlcnic_adapter, tx_timeout_task); | |
1857 | ||
1858 | if (!netif_running(adapter->netdev)) | |
1859 | return; | |
1860 | ||
1861 | if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) | |
1862 | return; | |
1863 | ||
1864 | if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) | |
1865 | goto request_reset; | |
1866 | ||
1867 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1868 | if (!qlcnic_reset_context(adapter)) { | |
1869 | adapter->netdev->trans_start = jiffies; | |
1870 | return; | |
1871 | ||
1872 | /* context reset failed, fall through for fw reset */ | |
1873 | } | |
1874 | ||
1875 | request_reset: | |
1876 | adapter->need_fw_reset = 1; | |
1877 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
65b5b420 | 1878 | QLCDB(adapter, DRV, "Resetting adapter\n"); |
af19b491 AKS |
1879 | } |
1880 | ||
1881 | static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev) | |
1882 | { | |
1883 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1884 | struct net_device_stats *stats = &netdev->stats; | |
1885 | ||
1886 | memset(stats, 0, sizeof(*stats)); | |
1887 | ||
1888 | stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; | |
1889 | stats->tx_packets = adapter->stats.xmitfinished; | |
7e382594 | 1890 | stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes; |
af19b491 AKS |
1891 | stats->tx_bytes = adapter->stats.txbytes; |
1892 | stats->rx_dropped = adapter->stats.rxdropped; | |
1893 | stats->tx_dropped = adapter->stats.txdropped; | |
1894 | ||
1895 | return stats; | |
1896 | } | |
1897 | ||
7eb9855d | 1898 | static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter) |
af19b491 | 1899 | { |
af19b491 AKS |
1900 | u32 status; |
1901 | ||
1902 | status = readl(adapter->isr_int_vec); | |
1903 | ||
1904 | if (!(status & adapter->int_vec_bit)) | |
1905 | return IRQ_NONE; | |
1906 | ||
1907 | /* check interrupt state machine, to be sure */ | |
1908 | status = readl(adapter->crb_int_state_reg); | |
1909 | if (!ISR_LEGACY_INT_TRIGGERED(status)) | |
1910 | return IRQ_NONE; | |
1911 | ||
1912 | writel(0xffffffff, adapter->tgt_status_reg); | |
1913 | /* read twice to ensure write is flushed */ | |
1914 | readl(adapter->isr_int_vec); | |
1915 | readl(adapter->isr_int_vec); | |
1916 | ||
7eb9855d AKS |
1917 | return IRQ_HANDLED; |
1918 | } | |
1919 | ||
1920 | static irqreturn_t qlcnic_tmp_intr(int irq, void *data) | |
1921 | { | |
1922 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1923 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1924 | ||
1925 | if (adapter->flags & QLCNIC_MSIX_ENABLED) | |
1926 | goto done; | |
1927 | else if (adapter->flags & QLCNIC_MSI_ENABLED) { | |
1928 | writel(0xffffffff, adapter->tgt_status_reg); | |
1929 | goto done; | |
1930 | } | |
1931 | ||
1932 | if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) | |
1933 | return IRQ_NONE; | |
1934 | ||
1935 | done: | |
1936 | adapter->diag_cnt++; | |
1937 | qlcnic_enable_int(sds_ring); | |
1938 | return IRQ_HANDLED; | |
1939 | } | |
1940 | ||
1941 | static irqreturn_t qlcnic_intr(int irq, void *data) | |
1942 | { | |
1943 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1944 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1945 | ||
1946 | if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) | |
1947 | return IRQ_NONE; | |
1948 | ||
af19b491 AKS |
1949 | napi_schedule(&sds_ring->napi); |
1950 | ||
1951 | return IRQ_HANDLED; | |
1952 | } | |
1953 | ||
1954 | static irqreturn_t qlcnic_msi_intr(int irq, void *data) | |
1955 | { | |
1956 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1957 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1958 | ||
1959 | /* clear interrupt */ | |
1960 | writel(0xffffffff, adapter->tgt_status_reg); | |
1961 | ||
1962 | napi_schedule(&sds_ring->napi); | |
1963 | return IRQ_HANDLED; | |
1964 | } | |
1965 | ||
1966 | static irqreturn_t qlcnic_msix_intr(int irq, void *data) | |
1967 | { | |
1968 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1969 | ||
1970 | napi_schedule(&sds_ring->napi); | |
1971 | return IRQ_HANDLED; | |
1972 | } | |
1973 | ||
1974 | static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter) | |
1975 | { | |
1976 | u32 sw_consumer, hw_consumer; | |
1977 | int count = 0, i; | |
1978 | struct qlcnic_cmd_buffer *buffer; | |
1979 | struct pci_dev *pdev = adapter->pdev; | |
1980 | struct net_device *netdev = adapter->netdev; | |
1981 | struct qlcnic_skb_frag *frag; | |
1982 | int done; | |
1983 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; | |
1984 | ||
1985 | if (!spin_trylock(&adapter->tx_clean_lock)) | |
1986 | return 1; | |
1987 | ||
1988 | sw_consumer = tx_ring->sw_consumer; | |
1989 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); | |
1990 | ||
1991 | while (sw_consumer != hw_consumer) { | |
1992 | buffer = &tx_ring->cmd_buf_arr[sw_consumer]; | |
1993 | if (buffer->skb) { | |
1994 | frag = &buffer->frag_array[0]; | |
1995 | pci_unmap_single(pdev, frag->dma, frag->length, | |
1996 | PCI_DMA_TODEVICE); | |
1997 | frag->dma = 0ULL; | |
1998 | for (i = 1; i < buffer->frag_count; i++) { | |
1999 | frag++; | |
2000 | pci_unmap_page(pdev, frag->dma, frag->length, | |
2001 | PCI_DMA_TODEVICE); | |
2002 | frag->dma = 0ULL; | |
2003 | } | |
2004 | ||
2005 | adapter->stats.xmitfinished++; | |
2006 | dev_kfree_skb_any(buffer->skb); | |
2007 | buffer->skb = NULL; | |
2008 | } | |
2009 | ||
2010 | sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); | |
2011 | if (++count >= MAX_STATUS_HANDLE) | |
2012 | break; | |
2013 | } | |
2014 | ||
2015 | if (count && netif_running(netdev)) { | |
2016 | tx_ring->sw_consumer = sw_consumer; | |
2017 | ||
2018 | smp_mb(); | |
2019 | ||
2020 | if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) { | |
2021 | __netif_tx_lock(tx_ring->txq, smp_processor_id()); | |
2022 | if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) { | |
2023 | netif_wake_queue(netdev); | |
2024 | adapter->tx_timeo_cnt = 0; | |
8bfe8b91 | 2025 | adapter->stats.xmit_on++; |
af19b491 AKS |
2026 | } |
2027 | __netif_tx_unlock(tx_ring->txq); | |
2028 | } | |
2029 | } | |
2030 | /* | |
2031 | * If everything is freed up to consumer then check if the ring is full | |
2032 | * If the ring is full then check if more needs to be freed and | |
2033 | * schedule the call back again. | |
2034 | * | |
2035 | * This happens when there are 2 CPUs. One could be freeing and the | |
2036 | * other filling it. If the ring is full when we get out of here and | |
2037 | * the card has already interrupted the host then the host can miss the | |
2038 | * interrupt. | |
2039 | * | |
2040 | * There is still a possible race condition and the host could miss an | |
2041 | * interrupt. The card has to take care of this. | |
2042 | */ | |
2043 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); | |
2044 | done = (sw_consumer == hw_consumer); | |
2045 | spin_unlock(&adapter->tx_clean_lock); | |
2046 | ||
2047 | return done; | |
2048 | } | |
2049 | ||
2050 | static int qlcnic_poll(struct napi_struct *napi, int budget) | |
2051 | { | |
2052 | struct qlcnic_host_sds_ring *sds_ring = | |
2053 | container_of(napi, struct qlcnic_host_sds_ring, napi); | |
2054 | ||
2055 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
2056 | ||
2057 | int tx_complete; | |
2058 | int work_done; | |
2059 | ||
2060 | tx_complete = qlcnic_process_cmd_ring(adapter); | |
2061 | ||
2062 | work_done = qlcnic_process_rcv_ring(sds_ring, budget); | |
2063 | ||
2064 | if ((work_done < budget) && tx_complete) { | |
2065 | napi_complete(&sds_ring->napi); | |
2066 | if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
2067 | qlcnic_enable_int(sds_ring); | |
2068 | } | |
2069 | ||
2070 | return work_done; | |
2071 | } | |
2072 | ||
8f891387 | 2073 | static int qlcnic_rx_poll(struct napi_struct *napi, int budget) |
2074 | { | |
2075 | struct qlcnic_host_sds_ring *sds_ring = | |
2076 | container_of(napi, struct qlcnic_host_sds_ring, napi); | |
2077 | ||
2078 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
2079 | int work_done; | |
2080 | ||
2081 | work_done = qlcnic_process_rcv_ring(sds_ring, budget); | |
2082 | ||
2083 | if (work_done < budget) { | |
2084 | napi_complete(&sds_ring->napi); | |
2085 | if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
2086 | qlcnic_enable_int(sds_ring); | |
2087 | } | |
2088 | ||
2089 | return work_done; | |
2090 | } | |
2091 | ||
af19b491 AKS |
2092 | #ifdef CONFIG_NET_POLL_CONTROLLER |
2093 | static void qlcnic_poll_controller(struct net_device *netdev) | |
2094 | { | |
2095 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
2096 | disable_irq(adapter->irq); | |
2097 | qlcnic_intr(adapter->irq, adapter); | |
2098 | enable_irq(adapter->irq); | |
2099 | } | |
2100 | #endif | |
2101 | ||
6df900e9 SC |
2102 | static void |
2103 | qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding) | |
2104 | { | |
2105 | u32 val; | |
2106 | ||
2107 | val = adapter->portnum & 0xf; | |
2108 | val |= encoding << 7; | |
2109 | val |= (jiffies - adapter->dev_rst_time) << 8; | |
2110 | ||
2111 | QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val); | |
2112 | adapter->dev_rst_time = jiffies; | |
2113 | } | |
2114 | ||
ade91f8e AKS |
2115 | static int |
2116 | qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state) | |
af19b491 AKS |
2117 | { |
2118 | u32 val; | |
2119 | ||
2120 | WARN_ON(state != QLCNIC_DEV_NEED_RESET && | |
2121 | state != QLCNIC_DEV_NEED_QUISCENT); | |
2122 | ||
2123 | if (qlcnic_api_lock(adapter)) | |
ade91f8e | 2124 | return -EIO; |
af19b491 AKS |
2125 | |
2126 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
2127 | ||
2128 | if (state == QLCNIC_DEV_NEED_RESET) | |
6d2a4724 | 2129 | QLC_DEV_SET_RST_RDY(val, adapter->portnum); |
af19b491 | 2130 | else if (state == QLCNIC_DEV_NEED_QUISCENT) |
6d2a4724 | 2131 | QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum); |
af19b491 AKS |
2132 | |
2133 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); | |
2134 | ||
2135 | qlcnic_api_unlock(adapter); | |
ade91f8e AKS |
2136 | |
2137 | return 0; | |
af19b491 AKS |
2138 | } |
2139 | ||
1b95a839 AKS |
2140 | static int |
2141 | qlcnic_clr_drv_state(struct qlcnic_adapter *adapter) | |
2142 | { | |
2143 | u32 val; | |
2144 | ||
2145 | if (qlcnic_api_lock(adapter)) | |
2146 | return -EBUSY; | |
2147 | ||
2148 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
6d2a4724 | 2149 | QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum); |
1b95a839 AKS |
2150 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); |
2151 | ||
2152 | qlcnic_api_unlock(adapter); | |
2153 | ||
2154 | return 0; | |
2155 | } | |
2156 | ||
af19b491 AKS |
2157 | static void |
2158 | qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter) | |
2159 | { | |
2160 | u32 val; | |
2161 | ||
2162 | if (qlcnic_api_lock(adapter)) | |
2163 | goto err; | |
2164 | ||
2165 | val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); | |
6d2a4724 | 2166 | QLC_DEV_CLR_REF_CNT(val, adapter->portnum); |
af19b491 AKS |
2167 | QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val); |
2168 | ||
2169 | if (!(val & 0x11111111)) | |
2170 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD); | |
2171 | ||
2172 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
6d2a4724 | 2173 | QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum); |
af19b491 AKS |
2174 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); |
2175 | ||
2176 | qlcnic_api_unlock(adapter); | |
2177 | err: | |
2178 | adapter->fw_fail_cnt = 0; | |
2179 | clear_bit(__QLCNIC_START_FW, &adapter->state); | |
2180 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
2181 | } | |
2182 | ||
f73dfc50 | 2183 | /* Grab api lock, before checking state */ |
af19b491 AKS |
2184 | static int |
2185 | qlcnic_check_drv_state(struct qlcnic_adapter *adapter) | |
2186 | { | |
2187 | int act, state; | |
2188 | ||
2189 | state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
2190 | act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); | |
2191 | ||
2192 | if (((state & 0x11111111) == (act & 0x11111111)) || | |
2193 | ((act & 0x11111111) == ((state >> 1) & 0x11111111))) | |
2194 | return 0; | |
2195 | else | |
2196 | return 1; | |
2197 | } | |
2198 | ||
96f8118c SC |
2199 | static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter) |
2200 | { | |
2201 | u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER); | |
2202 | ||
2203 | if (val != QLCNIC_DRV_IDC_VER) { | |
2204 | dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's" | |
2205 | " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val); | |
2206 | } | |
2207 | ||
2208 | return 0; | |
2209 | } | |
2210 | ||
af19b491 AKS |
2211 | static int |
2212 | qlcnic_can_start_firmware(struct qlcnic_adapter *adapter) | |
2213 | { | |
2214 | u32 val, prev_state; | |
aa5e18c0 | 2215 | u8 dev_init_timeo = adapter->dev_init_timeo; |
6d2a4724 | 2216 | u8 portnum = adapter->portnum; |
96f8118c | 2217 | u8 ret; |
af19b491 | 2218 | |
f73dfc50 AKS |
2219 | if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state)) |
2220 | return 1; | |
2221 | ||
af19b491 AKS |
2222 | if (qlcnic_api_lock(adapter)) |
2223 | return -1; | |
2224 | ||
2225 | val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); | |
6d2a4724 AKS |
2226 | if (!(val & (1 << (portnum * 4)))) { |
2227 | QLC_DEV_SET_REF_CNT(val, portnum); | |
af19b491 | 2228 | QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val); |
af19b491 AKS |
2229 | } |
2230 | ||
2231 | prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
65b5b420 | 2232 | QLCDB(adapter, HW, "Device state = %u\n", prev_state); |
af19b491 AKS |
2233 | |
2234 | switch (prev_state) { | |
2235 | case QLCNIC_DEV_COLD: | |
bbd8c6a4 | 2236 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING); |
96f8118c | 2237 | QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER); |
6df900e9 | 2238 | qlcnic_idc_debug_info(adapter, 0); |
af19b491 AKS |
2239 | qlcnic_api_unlock(adapter); |
2240 | return 1; | |
2241 | ||
2242 | case QLCNIC_DEV_READY: | |
96f8118c | 2243 | ret = qlcnic_check_idc_ver(adapter); |
af19b491 | 2244 | qlcnic_api_unlock(adapter); |
96f8118c | 2245 | return ret; |
af19b491 AKS |
2246 | |
2247 | case QLCNIC_DEV_NEED_RESET: | |
2248 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
6d2a4724 | 2249 | QLC_DEV_SET_RST_RDY(val, portnum); |
af19b491 AKS |
2250 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); |
2251 | break; | |
2252 | ||
2253 | case QLCNIC_DEV_NEED_QUISCENT: | |
2254 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
6d2a4724 | 2255 | QLC_DEV_SET_QSCNT_RDY(val, portnum); |
af19b491 AKS |
2256 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); |
2257 | break; | |
2258 | ||
2259 | case QLCNIC_DEV_FAILED: | |
a7fc948f | 2260 | dev_err(&adapter->pdev->dev, "Device in failed state.\n"); |
af19b491 AKS |
2261 | qlcnic_api_unlock(adapter); |
2262 | return -1; | |
bbd8c6a4 AKS |
2263 | |
2264 | case QLCNIC_DEV_INITIALIZING: | |
2265 | case QLCNIC_DEV_QUISCENT: | |
2266 | break; | |
af19b491 AKS |
2267 | } |
2268 | ||
2269 | qlcnic_api_unlock(adapter); | |
aa5e18c0 SC |
2270 | |
2271 | do { | |
af19b491 | 2272 | msleep(1000); |
a5e463d0 SC |
2273 | prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); |
2274 | ||
2275 | if (prev_state == QLCNIC_DEV_QUISCENT) | |
2276 | continue; | |
2277 | } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo); | |
af19b491 | 2278 | |
65b5b420 AKS |
2279 | if (!dev_init_timeo) { |
2280 | dev_err(&adapter->pdev->dev, | |
2281 | "Waiting for device to initialize timeout\n"); | |
af19b491 | 2282 | return -1; |
65b5b420 | 2283 | } |
af19b491 AKS |
2284 | |
2285 | if (qlcnic_api_lock(adapter)) | |
2286 | return -1; | |
2287 | ||
2288 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
6d2a4724 | 2289 | QLC_DEV_CLR_RST_QSCNT(val, portnum); |
af19b491 AKS |
2290 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); |
2291 | ||
96f8118c | 2292 | ret = qlcnic_check_idc_ver(adapter); |
af19b491 AKS |
2293 | qlcnic_api_unlock(adapter); |
2294 | ||
96f8118c | 2295 | return ret; |
af19b491 AKS |
2296 | } |
2297 | ||
2298 | static void | |
2299 | qlcnic_fwinit_work(struct work_struct *work) | |
2300 | { | |
2301 | struct qlcnic_adapter *adapter = container_of(work, | |
2302 | struct qlcnic_adapter, fw_work.work); | |
9f26f547 | 2303 | u32 dev_state = 0xf, npar_state; |
af19b491 | 2304 | |
f73dfc50 AKS |
2305 | if (qlcnic_api_lock(adapter)) |
2306 | goto err_ret; | |
af19b491 | 2307 | |
a5e463d0 SC |
2308 | dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); |
2309 | if (dev_state == QLCNIC_DEV_QUISCENT) { | |
2310 | qlcnic_api_unlock(adapter); | |
2311 | qlcnic_schedule_work(adapter, qlcnic_fwinit_work, | |
2312 | FW_POLL_DELAY * 2); | |
2313 | return; | |
2314 | } | |
2315 | ||
9f26f547 AC |
2316 | if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) { |
2317 | npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE); | |
2318 | if (npar_state == QLCNIC_DEV_NPAR_RDY) { | |
2319 | qlcnic_api_unlock(adapter); | |
2320 | goto wait_npar; | |
2321 | } else { | |
2322 | qlcnic_schedule_work(adapter, qlcnic_fwinit_work, | |
2323 | FW_POLL_DELAY); | |
2324 | qlcnic_api_unlock(adapter); | |
2325 | return; | |
2326 | } | |
2327 | } | |
2328 | ||
f73dfc50 AKS |
2329 | if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) { |
2330 | dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n", | |
2331 | adapter->reset_ack_timeo); | |
2332 | goto skip_ack_check; | |
2333 | } | |
2334 | ||
2335 | if (!qlcnic_check_drv_state(adapter)) { | |
2336 | skip_ack_check: | |
2337 | dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
a5e463d0 SC |
2338 | |
2339 | if (dev_state == QLCNIC_DEV_NEED_QUISCENT) { | |
2340 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, | |
2341 | QLCNIC_DEV_QUISCENT); | |
2342 | qlcnic_schedule_work(adapter, qlcnic_fwinit_work, | |
2343 | FW_POLL_DELAY * 2); | |
2344 | QLCDB(adapter, DRV, "Quiscing the driver\n"); | |
6df900e9 SC |
2345 | qlcnic_idc_debug_info(adapter, 0); |
2346 | ||
a5e463d0 SC |
2347 | qlcnic_api_unlock(adapter); |
2348 | return; | |
2349 | } | |
2350 | ||
f73dfc50 AKS |
2351 | if (dev_state == QLCNIC_DEV_NEED_RESET) { |
2352 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, | |
2353 | QLCNIC_DEV_INITIALIZING); | |
2354 | set_bit(__QLCNIC_START_FW, &adapter->state); | |
2355 | QLCDB(adapter, DRV, "Restarting fw\n"); | |
6df900e9 | 2356 | qlcnic_idc_debug_info(adapter, 0); |
af19b491 AKS |
2357 | } |
2358 | ||
f73dfc50 AKS |
2359 | qlcnic_api_unlock(adapter); |
2360 | ||
9f26f547 | 2361 | if (!adapter->nic_ops->start_firmware(adapter)) { |
af19b491 AKS |
2362 | qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); |
2363 | return; | |
2364 | } | |
af19b491 AKS |
2365 | goto err_ret; |
2366 | } | |
2367 | ||
f73dfc50 | 2368 | qlcnic_api_unlock(adapter); |
aa5e18c0 | 2369 | |
9f26f547 | 2370 | wait_npar: |
af19b491 | 2371 | dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); |
f73dfc50 | 2372 | QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state); |
65b5b420 | 2373 | |
af19b491 | 2374 | switch (dev_state) { |
a5e463d0 SC |
2375 | case QLCNIC_DEV_QUISCENT: |
2376 | case QLCNIC_DEV_NEED_QUISCENT: | |
f73dfc50 AKS |
2377 | case QLCNIC_DEV_NEED_RESET: |
2378 | qlcnic_schedule_work(adapter, | |
2379 | qlcnic_fwinit_work, FW_POLL_DELAY); | |
2380 | return; | |
af19b491 AKS |
2381 | case QLCNIC_DEV_FAILED: |
2382 | break; | |
2383 | ||
2384 | default: | |
9f26f547 | 2385 | if (!adapter->nic_ops->start_firmware(adapter)) { |
f73dfc50 AKS |
2386 | qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); |
2387 | return; | |
2388 | } | |
af19b491 AKS |
2389 | } |
2390 | ||
2391 | err_ret: | |
f73dfc50 AKS |
2392 | dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u " |
2393 | "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt); | |
34ce3626 | 2394 | netif_device_attach(adapter->netdev); |
af19b491 AKS |
2395 | qlcnic_clr_all_drv_state(adapter); |
2396 | } | |
2397 | ||
2398 | static void | |
2399 | qlcnic_detach_work(struct work_struct *work) | |
2400 | { | |
2401 | struct qlcnic_adapter *adapter = container_of(work, | |
2402 | struct qlcnic_adapter, fw_work.work); | |
2403 | struct net_device *netdev = adapter->netdev; | |
2404 | u32 status; | |
2405 | ||
2406 | netif_device_detach(netdev); | |
2407 | ||
2408 | qlcnic_down(adapter, netdev); | |
2409 | ||
ce668443 | 2410 | rtnl_lock(); |
af19b491 | 2411 | qlcnic_detach(adapter); |
ce668443 | 2412 | rtnl_unlock(); |
af19b491 AKS |
2413 | |
2414 | status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1); | |
2415 | ||
2416 | if (status & QLCNIC_RCODE_FATAL_ERROR) | |
2417 | goto err_ret; | |
2418 | ||
2419 | if (adapter->temp == QLCNIC_TEMP_PANIC) | |
2420 | goto err_ret; | |
2421 | ||
ade91f8e AKS |
2422 | if (qlcnic_set_drv_state(adapter, adapter->dev_state)) |
2423 | goto err_ret; | |
af19b491 AKS |
2424 | |
2425 | adapter->fw_wait_cnt = 0; | |
2426 | ||
2427 | qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY); | |
2428 | ||
2429 | return; | |
2430 | ||
2431 | err_ret: | |
65b5b420 AKS |
2432 | dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n", |
2433 | status, adapter->temp); | |
34ce3626 | 2434 | netif_device_attach(netdev); |
af19b491 AKS |
2435 | qlcnic_clr_all_drv_state(adapter); |
2436 | ||
2437 | } | |
2438 | ||
f73dfc50 | 2439 | /*Transit to RESET state from READY state only */ |
af19b491 AKS |
2440 | static void |
2441 | qlcnic_dev_request_reset(struct qlcnic_adapter *adapter) | |
2442 | { | |
2443 | u32 state; | |
2444 | ||
2445 | if (qlcnic_api_lock(adapter)) | |
2446 | return; | |
2447 | ||
2448 | state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
2449 | ||
f73dfc50 | 2450 | if (state == QLCNIC_DEV_READY) { |
af19b491 | 2451 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET); |
65b5b420 | 2452 | QLCDB(adapter, DRV, "NEED_RESET state set\n"); |
6df900e9 | 2453 | qlcnic_idc_debug_info(adapter, 0); |
af19b491 AKS |
2454 | } |
2455 | ||
2456 | qlcnic_api_unlock(adapter); | |
2457 | } | |
2458 | ||
9f26f547 AC |
2459 | /* Transit to NPAR READY state from NPAR NOT READY state */ |
2460 | static void | |
2461 | qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter) | |
2462 | { | |
2463 | u32 state; | |
2464 | ||
9f26f547 AC |
2465 | if (qlcnic_api_lock(adapter)) |
2466 | return; | |
2467 | ||
2468 | state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE); | |
2469 | ||
2470 | if (state != QLCNIC_DEV_NPAR_RDY) { | |
2471 | QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, | |
2472 | QLCNIC_DEV_NPAR_RDY); | |
2473 | QLCDB(adapter, DRV, "NPAR READY state set\n"); | |
2474 | } | |
2475 | ||
2476 | qlcnic_api_unlock(adapter); | |
2477 | } | |
2478 | ||
af19b491 AKS |
2479 | static void |
2480 | qlcnic_schedule_work(struct qlcnic_adapter *adapter, | |
2481 | work_func_t func, int delay) | |
2482 | { | |
2483 | INIT_DELAYED_WORK(&adapter->fw_work, func); | |
2484 | schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay)); | |
2485 | } | |
2486 | ||
2487 | static void | |
2488 | qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter) | |
2489 | { | |
2490 | while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) | |
2491 | msleep(10); | |
2492 | ||
2493 | cancel_delayed_work_sync(&adapter->fw_work); | |
2494 | } | |
2495 | ||
2496 | static void | |
2497 | qlcnic_attach_work(struct work_struct *work) | |
2498 | { | |
2499 | struct qlcnic_adapter *adapter = container_of(work, | |
2500 | struct qlcnic_adapter, fw_work.work); | |
2501 | struct net_device *netdev = adapter->netdev; | |
2502 | int err; | |
2503 | ||
2504 | if (netif_running(netdev)) { | |
2505 | err = qlcnic_attach(adapter); | |
2506 | if (err) | |
2507 | goto done; | |
2508 | ||
2509 | err = qlcnic_up(adapter, netdev); | |
2510 | if (err) { | |
2511 | qlcnic_detach(adapter); | |
2512 | goto done; | |
2513 | } | |
2514 | ||
2515 | qlcnic_config_indev_addr(netdev, NETDEV_UP); | |
2516 | } | |
2517 | ||
af19b491 | 2518 | done: |
34ce3626 | 2519 | netif_device_attach(netdev); |
af19b491 AKS |
2520 | adapter->fw_fail_cnt = 0; |
2521 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1b95a839 AKS |
2522 | |
2523 | if (!qlcnic_clr_drv_state(adapter)) | |
2524 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, | |
2525 | FW_POLL_DELAY); | |
af19b491 AKS |
2526 | } |
2527 | ||
2528 | static int | |
2529 | qlcnic_check_health(struct qlcnic_adapter *adapter) | |
2530 | { | |
2531 | u32 state = 0, heartbit; | |
2532 | struct net_device *netdev = adapter->netdev; | |
2533 | ||
2534 | if (qlcnic_check_temp(adapter)) | |
2535 | goto detach; | |
2536 | ||
2372a5f1 | 2537 | if (adapter->need_fw_reset) |
af19b491 | 2538 | qlcnic_dev_request_reset(adapter); |
af19b491 AKS |
2539 | |
2540 | state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
2541 | if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT) | |
2542 | adapter->need_fw_reset = 1; | |
2543 | ||
2544 | heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER); | |
2545 | if (heartbit != adapter->heartbit) { | |
2546 | adapter->heartbit = heartbit; | |
2547 | adapter->fw_fail_cnt = 0; | |
2548 | if (adapter->need_fw_reset) | |
2549 | goto detach; | |
2550 | return 0; | |
2551 | } | |
2552 | ||
2553 | if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) | |
2554 | return 0; | |
2555 | ||
2556 | qlcnic_dev_request_reset(adapter); | |
2557 | ||
2558 | clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state); | |
2559 | ||
2560 | dev_info(&netdev->dev, "firmware hang detected\n"); | |
2561 | ||
2562 | detach: | |
2563 | adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state : | |
2564 | QLCNIC_DEV_NEED_RESET; | |
2565 | ||
2566 | if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && | |
65b5b420 AKS |
2567 | !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) { |
2568 | ||
af19b491 | 2569 | qlcnic_schedule_work(adapter, qlcnic_detach_work, 0); |
65b5b420 AKS |
2570 | QLCDB(adapter, DRV, "fw recovery scheduled.\n"); |
2571 | } | |
af19b491 AKS |
2572 | |
2573 | return 1; | |
2574 | } | |
2575 | ||
2576 | static void | |
2577 | qlcnic_fw_poll_work(struct work_struct *work) | |
2578 | { | |
2579 | struct qlcnic_adapter *adapter = container_of(work, | |
2580 | struct qlcnic_adapter, fw_work.work); | |
2581 | ||
2582 | if (test_bit(__QLCNIC_RESETTING, &adapter->state)) | |
2583 | goto reschedule; | |
2584 | ||
2585 | ||
2586 | if (qlcnic_check_health(adapter)) | |
2587 | return; | |
2588 | ||
2589 | reschedule: | |
2590 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); | |
2591 | } | |
2592 | ||
87eb743b AC |
2593 | static int |
2594 | qlcnicvf_start_firmware(struct qlcnic_adapter *adapter) | |
2595 | { | |
2596 | int err; | |
2597 | ||
2598 | err = qlcnic_can_start_firmware(adapter); | |
2599 | if (err) | |
2600 | return err; | |
2601 | ||
2602 | qlcnic_check_options(adapter); | |
2603 | ||
2604 | adapter->need_fw_reset = 0; | |
2605 | ||
2606 | return err; | |
2607 | } | |
2608 | ||
2609 | static int | |
2610 | qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable) | |
2611 | { | |
2612 | return -EOPNOTSUPP; | |
2613 | } | |
2614 | ||
2615 | static int | |
2616 | qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate) | |
2617 | { | |
2618 | return -EOPNOTSUPP; | |
2619 | } | |
2620 | ||
2621 | static int | |
2622 | qlcnicvf_set_ilb_mode(struct qlcnic_adapter *adapter) | |
2623 | { | |
2624 | return -EOPNOTSUPP; | |
2625 | } | |
2626 | ||
2627 | static void | |
2628 | qlcnicvf_clear_ilb_mode(struct qlcnic_adapter *adapter) | |
2629 | { | |
2630 | return; | |
2631 | } | |
2632 | ||
af19b491 AKS |
2633 | static ssize_t |
2634 | qlcnic_store_bridged_mode(struct device *dev, | |
2635 | struct device_attribute *attr, const char *buf, size_t len) | |
2636 | { | |
2637 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2638 | unsigned long new; | |
2639 | int ret = -EINVAL; | |
2640 | ||
2641 | if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)) | |
2642 | goto err_out; | |
2643 | ||
2644 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
2645 | goto err_out; | |
2646 | ||
2647 | if (strict_strtoul(buf, 2, &new)) | |
2648 | goto err_out; | |
2649 | ||
2e9d722d | 2650 | if (!adapter->nic_ops->config_bridged_mode(adapter, !!new)) |
af19b491 AKS |
2651 | ret = len; |
2652 | ||
2653 | err_out: | |
2654 | return ret; | |
2655 | } | |
2656 | ||
2657 | static ssize_t | |
2658 | qlcnic_show_bridged_mode(struct device *dev, | |
2659 | struct device_attribute *attr, char *buf) | |
2660 | { | |
2661 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2662 | int bridged_mode = 0; | |
2663 | ||
2664 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) | |
2665 | bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED); | |
2666 | ||
2667 | return sprintf(buf, "%d\n", bridged_mode); | |
2668 | } | |
2669 | ||
2670 | static struct device_attribute dev_attr_bridged_mode = { | |
2671 | .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, | |
2672 | .show = qlcnic_show_bridged_mode, | |
2673 | .store = qlcnic_store_bridged_mode, | |
2674 | }; | |
2675 | ||
2676 | static ssize_t | |
2677 | qlcnic_store_diag_mode(struct device *dev, | |
2678 | struct device_attribute *attr, const char *buf, size_t len) | |
2679 | { | |
2680 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2681 | unsigned long new; | |
2682 | ||
2683 | if (strict_strtoul(buf, 2, &new)) | |
2684 | return -EINVAL; | |
2685 | ||
2686 | if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED)) | |
2687 | adapter->flags ^= QLCNIC_DIAG_ENABLED; | |
2688 | ||
2689 | return len; | |
2690 | } | |
2691 | ||
2692 | static ssize_t | |
2693 | qlcnic_show_diag_mode(struct device *dev, | |
2694 | struct device_attribute *attr, char *buf) | |
2695 | { | |
2696 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2697 | ||
2698 | return sprintf(buf, "%d\n", | |
2699 | !!(adapter->flags & QLCNIC_DIAG_ENABLED)); | |
2700 | } | |
2701 | ||
2702 | static struct device_attribute dev_attr_diag_mode = { | |
2703 | .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, | |
2704 | .show = qlcnic_show_diag_mode, | |
2705 | .store = qlcnic_store_diag_mode, | |
2706 | }; | |
2707 | ||
2708 | static int | |
2709 | qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter, | |
2710 | loff_t offset, size_t size) | |
2711 | { | |
897e8c7c DP |
2712 | size_t crb_size = 4; |
2713 | ||
af19b491 AKS |
2714 | if (!(adapter->flags & QLCNIC_DIAG_ENABLED)) |
2715 | return -EIO; | |
2716 | ||
897e8c7c DP |
2717 | if (offset < QLCNIC_PCI_CRBSPACE) { |
2718 | if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, | |
2719 | QLCNIC_PCI_CAMQM_END)) | |
2720 | crb_size = 8; | |
2721 | else | |
2722 | return -EINVAL; | |
2723 | } | |
af19b491 | 2724 | |
897e8c7c DP |
2725 | if ((size != crb_size) || (offset & (crb_size-1))) |
2726 | return -EINVAL; | |
af19b491 AKS |
2727 | |
2728 | return 0; | |
2729 | } | |
2730 | ||
2731 | static ssize_t | |
2c3c8bea CW |
2732 | qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj, |
2733 | struct bin_attribute *attr, | |
af19b491 AKS |
2734 | char *buf, loff_t offset, size_t size) |
2735 | { | |
2736 | struct device *dev = container_of(kobj, struct device, kobj); | |
2737 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2738 | u32 data; | |
897e8c7c | 2739 | u64 qmdata; |
af19b491 AKS |
2740 | int ret; |
2741 | ||
2742 | ret = qlcnic_sysfs_validate_crb(adapter, offset, size); | |
2743 | if (ret != 0) | |
2744 | return ret; | |
2745 | ||
897e8c7c DP |
2746 | if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) { |
2747 | qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata); | |
2748 | memcpy(buf, &qmdata, size); | |
2749 | } else { | |
2750 | data = QLCRD32(adapter, offset); | |
2751 | memcpy(buf, &data, size); | |
2752 | } | |
af19b491 AKS |
2753 | return size; |
2754 | } | |
2755 | ||
2756 | static ssize_t | |
2c3c8bea CW |
2757 | qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj, |
2758 | struct bin_attribute *attr, | |
af19b491 AKS |
2759 | char *buf, loff_t offset, size_t size) |
2760 | { | |
2761 | struct device *dev = container_of(kobj, struct device, kobj); | |
2762 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2763 | u32 data; | |
897e8c7c | 2764 | u64 qmdata; |
af19b491 AKS |
2765 | int ret; |
2766 | ||
2767 | ret = qlcnic_sysfs_validate_crb(adapter, offset, size); | |
2768 | if (ret != 0) | |
2769 | return ret; | |
2770 | ||
897e8c7c DP |
2771 | if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) { |
2772 | memcpy(&qmdata, buf, size); | |
2773 | qlcnic_pci_camqm_write_2M(adapter, offset, qmdata); | |
2774 | } else { | |
2775 | memcpy(&data, buf, size); | |
2776 | QLCWR32(adapter, offset, data); | |
2777 | } | |
af19b491 AKS |
2778 | return size; |
2779 | } | |
2780 | ||
2781 | static int | |
2782 | qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter, | |
2783 | loff_t offset, size_t size) | |
2784 | { | |
2785 | if (!(adapter->flags & QLCNIC_DIAG_ENABLED)) | |
2786 | return -EIO; | |
2787 | ||
2788 | if ((size != 8) || (offset & 0x7)) | |
2789 | return -EIO; | |
2790 | ||
2791 | return 0; | |
2792 | } | |
2793 | ||
2794 | static ssize_t | |
2c3c8bea CW |
2795 | qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj, |
2796 | struct bin_attribute *attr, | |
af19b491 AKS |
2797 | char *buf, loff_t offset, size_t size) |
2798 | { | |
2799 | struct device *dev = container_of(kobj, struct device, kobj); | |
2800 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2801 | u64 data; | |
2802 | int ret; | |
2803 | ||
2804 | ret = qlcnic_sysfs_validate_mem(adapter, offset, size); | |
2805 | if (ret != 0) | |
2806 | return ret; | |
2807 | ||
2808 | if (qlcnic_pci_mem_read_2M(adapter, offset, &data)) | |
2809 | return -EIO; | |
2810 | ||
2811 | memcpy(buf, &data, size); | |
2812 | ||
2813 | return size; | |
2814 | } | |
2815 | ||
2816 | static ssize_t | |
2c3c8bea CW |
2817 | qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj, |
2818 | struct bin_attribute *attr, | |
af19b491 AKS |
2819 | char *buf, loff_t offset, size_t size) |
2820 | { | |
2821 | struct device *dev = container_of(kobj, struct device, kobj); | |
2822 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2823 | u64 data; | |
2824 | int ret; | |
2825 | ||
2826 | ret = qlcnic_sysfs_validate_mem(adapter, offset, size); | |
2827 | if (ret != 0) | |
2828 | return ret; | |
2829 | ||
2830 | memcpy(&data, buf, size); | |
2831 | ||
2832 | if (qlcnic_pci_mem_write_2M(adapter, offset, data)) | |
2833 | return -EIO; | |
2834 | ||
2835 | return size; | |
2836 | } | |
2837 | ||
2838 | ||
2839 | static struct bin_attribute bin_attr_crb = { | |
2840 | .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, | |
2841 | .size = 0, | |
2842 | .read = qlcnic_sysfs_read_crb, | |
2843 | .write = qlcnic_sysfs_write_crb, | |
2844 | }; | |
2845 | ||
2846 | static struct bin_attribute bin_attr_mem = { | |
2847 | .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, | |
2848 | .size = 0, | |
2849 | .read = qlcnic_sysfs_read_mem, | |
2850 | .write = qlcnic_sysfs_write_mem, | |
2851 | }; | |
2852 | ||
2853 | static void | |
2854 | qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter) | |
2855 | { | |
2856 | struct device *dev = &adapter->pdev->dev; | |
2857 | ||
2858 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) | |
2859 | if (device_create_file(dev, &dev_attr_bridged_mode)) | |
2860 | dev_warn(dev, | |
2861 | "failed to create bridged_mode sysfs entry\n"); | |
2862 | } | |
2863 | ||
2864 | static void | |
2865 | qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter) | |
2866 | { | |
2867 | struct device *dev = &adapter->pdev->dev; | |
2868 | ||
2869 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) | |
2870 | device_remove_file(dev, &dev_attr_bridged_mode); | |
2871 | } | |
2872 | ||
2873 | static void | |
2874 | qlcnic_create_diag_entries(struct qlcnic_adapter *adapter) | |
2875 | { | |
2876 | struct device *dev = &adapter->pdev->dev; | |
2877 | ||
2878 | if (device_create_file(dev, &dev_attr_diag_mode)) | |
2879 | dev_info(dev, "failed to create diag_mode sysfs entry\n"); | |
2880 | if (device_create_bin_file(dev, &bin_attr_crb)) | |
2881 | dev_info(dev, "failed to create crb sysfs entry\n"); | |
2882 | if (device_create_bin_file(dev, &bin_attr_mem)) | |
2883 | dev_info(dev, "failed to create mem sysfs entry\n"); | |
2884 | } | |
2885 | ||
2886 | ||
2887 | static void | |
2888 | qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter) | |
2889 | { | |
2890 | struct device *dev = &adapter->pdev->dev; | |
2891 | ||
2892 | device_remove_file(dev, &dev_attr_diag_mode); | |
2893 | device_remove_bin_file(dev, &bin_attr_crb); | |
2894 | device_remove_bin_file(dev, &bin_attr_mem); | |
2895 | } | |
2896 | ||
2897 | #ifdef CONFIG_INET | |
2898 | ||
2899 | #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops) | |
2900 | ||
af19b491 AKS |
2901 | static void |
2902 | qlcnic_config_indev_addr(struct net_device *dev, unsigned long event) | |
2903 | { | |
2904 | struct in_device *indev; | |
2905 | struct qlcnic_adapter *adapter = netdev_priv(dev); | |
2906 | ||
af19b491 AKS |
2907 | indev = in_dev_get(dev); |
2908 | if (!indev) | |
2909 | return; | |
2910 | ||
2911 | for_ifa(indev) { | |
2912 | switch (event) { | |
2913 | case NETDEV_UP: | |
2914 | qlcnic_config_ipaddr(adapter, | |
2915 | ifa->ifa_address, QLCNIC_IP_UP); | |
2916 | break; | |
2917 | case NETDEV_DOWN: | |
2918 | qlcnic_config_ipaddr(adapter, | |
2919 | ifa->ifa_address, QLCNIC_IP_DOWN); | |
2920 | break; | |
2921 | default: | |
2922 | break; | |
2923 | } | |
2924 | } endfor_ifa(indev); | |
2925 | ||
2926 | in_dev_put(indev); | |
af19b491 AKS |
2927 | } |
2928 | ||
2929 | static int qlcnic_netdev_event(struct notifier_block *this, | |
2930 | unsigned long event, void *ptr) | |
2931 | { | |
2932 | struct qlcnic_adapter *adapter; | |
2933 | struct net_device *dev = (struct net_device *)ptr; | |
2934 | ||
2935 | recheck: | |
2936 | if (dev == NULL) | |
2937 | goto done; | |
2938 | ||
2939 | if (dev->priv_flags & IFF_802_1Q_VLAN) { | |
2940 | dev = vlan_dev_real_dev(dev); | |
2941 | goto recheck; | |
2942 | } | |
2943 | ||
2944 | if (!is_qlcnic_netdev(dev)) | |
2945 | goto done; | |
2946 | ||
2947 | adapter = netdev_priv(dev); | |
2948 | ||
2949 | if (!adapter) | |
2950 | goto done; | |
2951 | ||
2952 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
2953 | goto done; | |
2954 | ||
2955 | qlcnic_config_indev_addr(dev, event); | |
2956 | done: | |
2957 | return NOTIFY_DONE; | |
2958 | } | |
2959 | ||
2960 | static int | |
2961 | qlcnic_inetaddr_event(struct notifier_block *this, | |
2962 | unsigned long event, void *ptr) | |
2963 | { | |
2964 | struct qlcnic_adapter *adapter; | |
2965 | struct net_device *dev; | |
2966 | ||
2967 | struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; | |
2968 | ||
2969 | dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; | |
2970 | ||
2971 | recheck: | |
2972 | if (dev == NULL || !netif_running(dev)) | |
2973 | goto done; | |
2974 | ||
2975 | if (dev->priv_flags & IFF_802_1Q_VLAN) { | |
2976 | dev = vlan_dev_real_dev(dev); | |
2977 | goto recheck; | |
2978 | } | |
2979 | ||
2980 | if (!is_qlcnic_netdev(dev)) | |
2981 | goto done; | |
2982 | ||
2983 | adapter = netdev_priv(dev); | |
2984 | ||
251a84c9 | 2985 | if (!adapter) |
af19b491 AKS |
2986 | goto done; |
2987 | ||
2988 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
2989 | goto done; | |
2990 | ||
2991 | switch (event) { | |
2992 | case NETDEV_UP: | |
2993 | qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP); | |
2994 | break; | |
2995 | case NETDEV_DOWN: | |
2996 | qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN); | |
2997 | break; | |
2998 | default: | |
2999 | break; | |
3000 | } | |
3001 | ||
3002 | done: | |
3003 | return NOTIFY_DONE; | |
3004 | } | |
3005 | ||
3006 | static struct notifier_block qlcnic_netdev_cb = { | |
3007 | .notifier_call = qlcnic_netdev_event, | |
3008 | }; | |
3009 | ||
3010 | static struct notifier_block qlcnic_inetaddr_cb = { | |
3011 | .notifier_call = qlcnic_inetaddr_event, | |
3012 | }; | |
3013 | #else | |
3014 | static void | |
3015 | qlcnic_config_indev_addr(struct net_device *dev, unsigned long event) | |
3016 | { } | |
3017 | #endif | |
3018 | ||
3019 | static struct pci_driver qlcnic_driver = { | |
3020 | .name = qlcnic_driver_name, | |
3021 | .id_table = qlcnic_pci_tbl, | |
3022 | .probe = qlcnic_probe, | |
3023 | .remove = __devexit_p(qlcnic_remove), | |
3024 | #ifdef CONFIG_PM | |
3025 | .suspend = qlcnic_suspend, | |
3026 | .resume = qlcnic_resume, | |
3027 | #endif | |
3028 | .shutdown = qlcnic_shutdown | |
3029 | }; | |
3030 | ||
3031 | static int __init qlcnic_init_module(void) | |
3032 | { | |
3033 | ||
3034 | printk(KERN_INFO "%s\n", qlcnic_driver_string); | |
3035 | ||
3036 | #ifdef CONFIG_INET | |
3037 | register_netdevice_notifier(&qlcnic_netdev_cb); | |
3038 | register_inetaddr_notifier(&qlcnic_inetaddr_cb); | |
3039 | #endif | |
3040 | ||
3041 | ||
3042 | return pci_register_driver(&qlcnic_driver); | |
3043 | } | |
3044 | ||
3045 | module_init(qlcnic_init_module); | |
3046 | ||
3047 | static void __exit qlcnic_exit_module(void) | |
3048 | { | |
3049 | ||
3050 | pci_unregister_driver(&qlcnic_driver); | |
3051 | ||
3052 | #ifdef CONFIG_INET | |
3053 | unregister_inetaddr_notifier(&qlcnic_inetaddr_cb); | |
3054 | unregister_netdevice_notifier(&qlcnic_netdev_cb); | |
3055 | #endif | |
3056 | } | |
3057 | ||
3058 | module_exit(qlcnic_exit_module); |