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c27a02cd YP |
1 | /* |
2 | * Copyright (c) 2007 Mellanox Technologies. All rights reserved. | |
3 | * | |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | * | |
32 | */ | |
33 | ||
34 | #include <linux/etherdevice.h> | |
35 | #include <linux/tcp.h> | |
36 | #include <linux/if_vlan.h> | |
37 | #include <linux/delay.h> | |
5a0e3ad6 | 38 | #include <linux/slab.h> |
c27a02cd YP |
39 | |
40 | #include <linux/mlx4/driver.h> | |
41 | #include <linux/mlx4/device.h> | |
42 | #include <linux/mlx4/cmd.h> | |
43 | #include <linux/mlx4/cq.h> | |
44 | ||
45 | #include "mlx4_en.h" | |
46 | #include "en_port.h" | |
47 | ||
897d7846 AV |
48 | static int mlx4_en_setup_tc(struct net_device *dev, u8 up) |
49 | { | |
bc6a4744 AV |
50 | struct mlx4_en_priv *priv = netdev_priv(dev); |
51 | int i; | |
52 | unsigned int q, offset = 0; | |
53 | ||
54 | if (up && up != MLX4_EN_NUM_UP) | |
897d7846 AV |
55 | return -EINVAL; |
56 | ||
bc6a4744 AV |
57 | netdev_set_num_tc(dev, up); |
58 | ||
59 | /* Partition Tx queues evenly amongst UP's */ | |
60 | q = priv->tx_ring_num / up; | |
61 | for (i = 0; i < up; i++) { | |
62 | netdev_set_tc_queue(dev, i, q, offset); | |
63 | offset += q; | |
64 | } | |
65 | ||
897d7846 AV |
66 | return 0; |
67 | } | |
68 | ||
8e586137 | 69 | static int mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
c27a02cd YP |
70 | { |
71 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
72 | struct mlx4_en_dev *mdev = priv->mdev; | |
73 | int err; | |
4c3eb3ca | 74 | int idx; |
c27a02cd | 75 | |
f1b553fb | 76 | en_dbg(HW, priv, "adding VLAN:%d\n", vid); |
c27a02cd | 77 | |
f1b553fb | 78 | set_bit(vid, priv->active_vlans); |
c27a02cd YP |
79 | |
80 | /* Add VID to port VLAN filter */ | |
81 | mutex_lock(&mdev->state_lock); | |
82 | if (mdev->device_up && priv->port_up) { | |
f1b553fb | 83 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); |
c27a02cd | 84 | if (err) |
453a6082 | 85 | en_err(priv, "Failed configuring VLAN filter\n"); |
c27a02cd | 86 | } |
4c3eb3ca EC |
87 | if (mlx4_register_vlan(mdev->dev, priv->port, vid, &idx)) |
88 | en_err(priv, "failed adding vlan %d\n", vid); | |
c27a02cd | 89 | mutex_unlock(&mdev->state_lock); |
4c3eb3ca | 90 | |
8e586137 | 91 | return 0; |
c27a02cd YP |
92 | } |
93 | ||
8e586137 | 94 | static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
c27a02cd YP |
95 | { |
96 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
97 | struct mlx4_en_dev *mdev = priv->mdev; | |
98 | int err; | |
4c3eb3ca | 99 | int idx; |
c27a02cd | 100 | |
f1b553fb | 101 | en_dbg(HW, priv, "Killing VID:%d\n", vid); |
c27a02cd | 102 | |
f1b553fb | 103 | clear_bit(vid, priv->active_vlans); |
c27a02cd YP |
104 | |
105 | /* Remove VID from port VLAN filter */ | |
106 | mutex_lock(&mdev->state_lock); | |
4c3eb3ca EC |
107 | if (!mlx4_find_cached_vlan(mdev->dev, priv->port, vid, &idx)) |
108 | mlx4_unregister_vlan(mdev->dev, priv->port, idx); | |
109 | else | |
110 | en_err(priv, "could not find vid %d in cache\n", vid); | |
111 | ||
c27a02cd | 112 | if (mdev->device_up && priv->port_up) { |
f1b553fb | 113 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); |
c27a02cd | 114 | if (err) |
453a6082 | 115 | en_err(priv, "Failed configuring VLAN filter\n"); |
c27a02cd YP |
116 | } |
117 | mutex_unlock(&mdev->state_lock); | |
8e586137 JP |
118 | |
119 | return 0; | |
c27a02cd YP |
120 | } |
121 | ||
e7c1c2c4 | 122 | u64 mlx4_en_mac_to_u64(u8 *addr) |
c27a02cd YP |
123 | { |
124 | u64 mac = 0; | |
125 | int i; | |
126 | ||
127 | for (i = 0; i < ETH_ALEN; i++) { | |
128 | mac <<= 8; | |
129 | mac |= addr[i]; | |
130 | } | |
131 | return mac; | |
132 | } | |
133 | ||
134 | static int mlx4_en_set_mac(struct net_device *dev, void *addr) | |
135 | { | |
136 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
137 | struct mlx4_en_dev *mdev = priv->mdev; | |
138 | struct sockaddr *saddr = addr; | |
139 | ||
140 | if (!is_valid_ether_addr(saddr->sa_data)) | |
141 | return -EADDRNOTAVAIL; | |
142 | ||
143 | memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN); | |
144 | priv->mac = mlx4_en_mac_to_u64(dev->dev_addr); | |
145 | queue_work(mdev->workqueue, &priv->mac_task); | |
146 | return 0; | |
147 | } | |
148 | ||
149 | static void mlx4_en_do_set_mac(struct work_struct *work) | |
150 | { | |
151 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
152 | mac_task); | |
153 | struct mlx4_en_dev *mdev = priv->mdev; | |
154 | int err = 0; | |
155 | ||
156 | mutex_lock(&mdev->state_lock); | |
157 | if (priv->port_up) { | |
158 | /* Remove old MAC and insert the new one */ | |
1679200f | 159 | err = mlx4_replace_mac(mdev->dev, priv->port, |
ffe455ad | 160 | priv->base_qpn, priv->mac); |
c27a02cd | 161 | if (err) |
453a6082 | 162 | en_err(priv, "Failed changing HW MAC address\n"); |
c27a02cd | 163 | } else |
453a6082 YP |
164 | en_dbg(HW, priv, "Port is down while " |
165 | "registering mac, exiting...\n"); | |
c27a02cd YP |
166 | |
167 | mutex_unlock(&mdev->state_lock); | |
168 | } | |
169 | ||
170 | static void mlx4_en_clear_list(struct net_device *dev) | |
171 | { | |
172 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
6d199937 | 173 | struct mlx4_en_mc_list *tmp, *mc_to_del; |
c27a02cd | 174 | |
6d199937 YP |
175 | list_for_each_entry_safe(mc_to_del, tmp, &priv->mc_list, list) { |
176 | list_del(&mc_to_del->list); | |
177 | kfree(mc_to_del); | |
178 | } | |
c27a02cd YP |
179 | } |
180 | ||
181 | static void mlx4_en_cache_mclist(struct net_device *dev) | |
182 | { | |
183 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
22bedad3 | 184 | struct netdev_hw_addr *ha; |
6d199937 | 185 | struct mlx4_en_mc_list *tmp; |
ff6e2163 | 186 | |
0e03567a | 187 | mlx4_en_clear_list(dev); |
6d199937 YP |
188 | netdev_for_each_mc_addr(ha, dev) { |
189 | tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC); | |
190 | if (!tmp) { | |
191 | en_err(priv, "failed to allocate multicast list\n"); | |
192 | mlx4_en_clear_list(dev); | |
193 | return; | |
194 | } | |
195 | memcpy(tmp->addr, ha->addr, ETH_ALEN); | |
196 | list_add_tail(&tmp->list, &priv->mc_list); | |
197 | } | |
c27a02cd YP |
198 | } |
199 | ||
6d199937 YP |
200 | static void update_mclist_flags(struct mlx4_en_priv *priv, |
201 | struct list_head *dst, | |
202 | struct list_head *src) | |
203 | { | |
204 | struct mlx4_en_mc_list *dst_tmp, *src_tmp, *new_mc; | |
205 | bool found; | |
206 | ||
207 | /* Find all the entries that should be removed from dst, | |
208 | * These are the entries that are not found in src | |
209 | */ | |
210 | list_for_each_entry(dst_tmp, dst, list) { | |
211 | found = false; | |
212 | list_for_each_entry(src_tmp, src, list) { | |
213 | if (!memcmp(dst_tmp->addr, src_tmp->addr, ETH_ALEN)) { | |
214 | found = true; | |
215 | break; | |
216 | } | |
217 | } | |
218 | if (!found) | |
219 | dst_tmp->action = MCLIST_REM; | |
220 | } | |
221 | ||
222 | /* Add entries that exist in src but not in dst | |
223 | * mark them as need to add | |
224 | */ | |
225 | list_for_each_entry(src_tmp, src, list) { | |
226 | found = false; | |
227 | list_for_each_entry(dst_tmp, dst, list) { | |
228 | if (!memcmp(dst_tmp->addr, src_tmp->addr, ETH_ALEN)) { | |
229 | dst_tmp->action = MCLIST_NONE; | |
230 | found = true; | |
231 | break; | |
232 | } | |
233 | } | |
234 | if (!found) { | |
235 | new_mc = kmalloc(sizeof(struct mlx4_en_mc_list), | |
236 | GFP_KERNEL); | |
237 | if (!new_mc) { | |
238 | en_err(priv, "Failed to allocate current multicast list\n"); | |
239 | return; | |
240 | } | |
241 | memcpy(new_mc, src_tmp, | |
242 | sizeof(struct mlx4_en_mc_list)); | |
243 | new_mc->action = MCLIST_ADD; | |
244 | list_add_tail(&new_mc->list, dst); | |
245 | } | |
246 | } | |
247 | } | |
c27a02cd YP |
248 | |
249 | static void mlx4_en_set_multicast(struct net_device *dev) | |
250 | { | |
251 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
252 | ||
253 | if (!priv->port_up) | |
254 | return; | |
255 | ||
256 | queue_work(priv->mdev->workqueue, &priv->mcast_task); | |
257 | } | |
258 | ||
259 | static void mlx4_en_do_set_multicast(struct work_struct *work) | |
260 | { | |
261 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
262 | mcast_task); | |
263 | struct mlx4_en_dev *mdev = priv->mdev; | |
264 | struct net_device *dev = priv->dev; | |
6d199937 | 265 | struct mlx4_en_mc_list *mclist, *tmp; |
c27a02cd | 266 | u64 mcast_addr = 0; |
1679200f | 267 | u8 mc_list[16] = {0}; |
c96d97f4 | 268 | int err = 0; |
c27a02cd YP |
269 | |
270 | mutex_lock(&mdev->state_lock); | |
271 | if (!mdev->device_up) { | |
453a6082 YP |
272 | en_dbg(HW, priv, "Card is not up, " |
273 | "ignoring multicast change.\n"); | |
c27a02cd YP |
274 | goto out; |
275 | } | |
276 | if (!priv->port_up) { | |
453a6082 YP |
277 | en_dbg(HW, priv, "Port is down, " |
278 | "ignoring multicast change.\n"); | |
c27a02cd YP |
279 | goto out; |
280 | } | |
281 | ||
ffe455ad EE |
282 | if (!netif_carrier_ok(dev)) { |
283 | if (!mlx4_en_QUERY_PORT(mdev, priv->port)) { | |
284 | if (priv->port_state.link_state) { | |
285 | priv->last_link_state = MLX4_DEV_EVENT_PORT_UP; | |
286 | netif_carrier_on(dev); | |
287 | en_dbg(LINK, priv, "Link Up\n"); | |
288 | } | |
289 | } | |
290 | } | |
291 | ||
c27a02cd YP |
292 | /* |
293 | * Promsicuous mode: disable all filters | |
294 | */ | |
295 | ||
296 | if (dev->flags & IFF_PROMISC) { | |
297 | if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) { | |
298 | if (netif_msg_rx_status(priv)) | |
453a6082 | 299 | en_warn(priv, "Entering promiscuous mode\n"); |
c27a02cd YP |
300 | priv->flags |= MLX4_EN_FLAG_PROMISC; |
301 | ||
302 | /* Enable promiscouos mode */ | |
c96d97f4 HHZ |
303 | switch (mdev->dev->caps.steering_mode) { |
304 | case MLX4_STEERING_MODE_B0: | |
305 | err = mlx4_unicast_promisc_add(mdev->dev, | |
306 | priv->base_qpn, | |
1679200f | 307 | priv->port); |
c96d97f4 HHZ |
308 | if (err) |
309 | en_err(priv, "Failed enabling unicast promiscuous mode\n"); | |
310 | ||
311 | /* Add the default qp number as multicast | |
312 | * promisc | |
313 | */ | |
314 | if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { | |
315 | err = mlx4_multicast_promisc_add(mdev->dev, | |
316 | priv->base_qpn, | |
317 | priv->port); | |
318 | if (err) | |
319 | en_err(priv, "Failed enabling multicast promiscuous mode\n"); | |
320 | priv->flags |= MLX4_EN_FLAG_MC_PROMISC; | |
321 | } | |
322 | break; | |
323 | ||
324 | case MLX4_STEERING_MODE_A0: | |
325 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, | |
326 | priv->port, | |
327 | priv->base_qpn, | |
328 | 1); | |
329 | if (err) | |
330 | en_err(priv, "Failed enabling promiscuous mode\n"); | |
331 | break; | |
332 | } | |
c27a02cd YP |
333 | |
334 | /* Disable port multicast filter (unconditionally) */ | |
335 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
336 | 0, MLX4_MCAST_DISABLE); | |
337 | if (err) | |
453a6082 YP |
338 | en_err(priv, "Failed disabling " |
339 | "multicast filter\n"); | |
c27a02cd | 340 | |
f1b553fb JP |
341 | /* Disable port VLAN filter */ |
342 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); | |
343 | if (err) | |
344 | en_err(priv, "Failed disabling VLAN filter\n"); | |
c27a02cd YP |
345 | } |
346 | goto out; | |
347 | } | |
348 | ||
349 | /* | |
25985edc | 350 | * Not in promiscuous mode |
c27a02cd YP |
351 | */ |
352 | ||
353 | if (priv->flags & MLX4_EN_FLAG_PROMISC) { | |
354 | if (netif_msg_rx_status(priv)) | |
453a6082 | 355 | en_warn(priv, "Leaving promiscuous mode\n"); |
c27a02cd YP |
356 | priv->flags &= ~MLX4_EN_FLAG_PROMISC; |
357 | ||
358 | /* Disable promiscouos mode */ | |
c96d97f4 HHZ |
359 | switch (mdev->dev->caps.steering_mode) { |
360 | case MLX4_STEERING_MODE_B0: | |
361 | err = mlx4_unicast_promisc_remove(mdev->dev, | |
362 | priv->base_qpn, | |
1679200f | 363 | priv->port); |
c96d97f4 HHZ |
364 | if (err) |
365 | en_err(priv, "Failed disabling unicast promiscuous mode\n"); | |
366 | /* Disable Multicast promisc */ | |
367 | if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { | |
368 | err = mlx4_multicast_promisc_remove(mdev->dev, | |
369 | priv->base_qpn, | |
370 | priv->port); | |
371 | if (err) | |
372 | en_err(priv, "Failed disabling multicast promiscuous mode\n"); | |
373 | priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; | |
374 | } | |
375 | break; | |
c27a02cd | 376 | |
c96d97f4 HHZ |
377 | case MLX4_STEERING_MODE_A0: |
378 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, | |
379 | priv->port, | |
380 | priv->base_qpn, 0); | |
1679200f | 381 | if (err) |
c96d97f4 HHZ |
382 | en_err(priv, "Failed disabling promiscuous mode\n"); |
383 | break; | |
1679200f YP |
384 | } |
385 | ||
c27a02cd | 386 | /* Enable port VLAN filter */ |
f1b553fb | 387 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); |
c27a02cd | 388 | if (err) |
453a6082 | 389 | en_err(priv, "Failed enabling VLAN filter\n"); |
c27a02cd YP |
390 | } |
391 | ||
392 | /* Enable/disable the multicast filter according to IFF_ALLMULTI */ | |
393 | if (dev->flags & IFF_ALLMULTI) { | |
394 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
395 | 0, MLX4_MCAST_DISABLE); | |
396 | if (err) | |
453a6082 | 397 | en_err(priv, "Failed disabling multicast filter\n"); |
1679200f YP |
398 | |
399 | /* Add the default qp number as multicast promisc */ | |
400 | if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { | |
c96d97f4 HHZ |
401 | switch (mdev->dev->caps.steering_mode) { |
402 | case MLX4_STEERING_MODE_B0: | |
403 | err = mlx4_multicast_promisc_add(mdev->dev, | |
404 | priv->base_qpn, | |
405 | priv->port); | |
406 | break; | |
407 | ||
408 | case MLX4_STEERING_MODE_A0: | |
409 | break; | |
410 | } | |
1679200f YP |
411 | if (err) |
412 | en_err(priv, "Failed entering multicast promisc mode\n"); | |
413 | priv->flags |= MLX4_EN_FLAG_MC_PROMISC; | |
414 | } | |
c27a02cd | 415 | } else { |
1679200f YP |
416 | /* Disable Multicast promisc */ |
417 | if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { | |
c96d97f4 HHZ |
418 | switch (mdev->dev->caps.steering_mode) { |
419 | case MLX4_STEERING_MODE_B0: | |
420 | err = mlx4_multicast_promisc_remove(mdev->dev, | |
421 | priv->base_qpn, | |
422 | priv->port); | |
423 | break; | |
424 | ||
425 | case MLX4_STEERING_MODE_A0: | |
426 | break; | |
427 | } | |
1679200f | 428 | if (err) |
25985edc | 429 | en_err(priv, "Failed disabling multicast promiscuous mode\n"); |
1679200f YP |
430 | priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; |
431 | } | |
ff6e2163 | 432 | |
c27a02cd YP |
433 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, |
434 | 0, MLX4_MCAST_DISABLE); | |
435 | if (err) | |
453a6082 | 436 | en_err(priv, "Failed disabling multicast filter\n"); |
c27a02cd YP |
437 | |
438 | /* Flush mcast filter and init it with broadcast address */ | |
439 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST, | |
440 | 1, MLX4_MCAST_CONFIG); | |
441 | ||
442 | /* Update multicast list - we cache all addresses so they won't | |
443 | * change while HW is updated holding the command semaphor */ | |
444 | netif_tx_lock_bh(dev); | |
445 | mlx4_en_cache_mclist(dev); | |
446 | netif_tx_unlock_bh(dev); | |
6d199937 YP |
447 | list_for_each_entry(mclist, &priv->mc_list, list) { |
448 | mcast_addr = mlx4_en_mac_to_u64(mclist->addr); | |
c27a02cd YP |
449 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, |
450 | mcast_addr, 0, MLX4_MCAST_CONFIG); | |
451 | } | |
452 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
453 | 0, MLX4_MCAST_ENABLE); | |
454 | if (err) | |
453a6082 | 455 | en_err(priv, "Failed enabling multicast filter\n"); |
6d199937 YP |
456 | |
457 | update_mclist_flags(priv, &priv->curr_list, &priv->mc_list); | |
458 | list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) { | |
459 | if (mclist->action == MCLIST_REM) { | |
460 | /* detach this address and delete from list */ | |
461 | memcpy(&mc_list[10], mclist->addr, ETH_ALEN); | |
462 | mc_list[5] = priv->port; | |
463 | err = mlx4_multicast_detach(mdev->dev, | |
464 | &priv->rss_map.indir_qp, | |
465 | mc_list, | |
466 | MLX4_PROT_ETH); | |
467 | if (err) | |
468 | en_err(priv, "Fail to detach multicast address\n"); | |
469 | ||
470 | /* remove from list */ | |
471 | list_del(&mclist->list); | |
472 | kfree(mclist); | |
473 | } | |
474 | ||
475 | if (mclist->action == MCLIST_ADD) { | |
476 | /* attach the address */ | |
477 | memcpy(&mc_list[10], mclist->addr, ETH_ALEN); | |
478 | mc_list[5] = priv->port; | |
479 | err = mlx4_multicast_attach(mdev->dev, | |
480 | &priv->rss_map.indir_qp, | |
481 | mc_list, 0, | |
482 | MLX4_PROT_ETH); | |
483 | if (err) | |
484 | en_err(priv, "Fail to attach multicast address\n"); | |
485 | ||
486 | } | |
487 | } | |
c27a02cd YP |
488 | } |
489 | out: | |
490 | mutex_unlock(&mdev->state_lock); | |
491 | } | |
492 | ||
493 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
494 | static void mlx4_en_netpoll(struct net_device *dev) | |
495 | { | |
496 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
497 | struct mlx4_en_cq *cq; | |
498 | unsigned long flags; | |
499 | int i; | |
500 | ||
501 | for (i = 0; i < priv->rx_ring_num; i++) { | |
502 | cq = &priv->rx_cq[i]; | |
503 | spin_lock_irqsave(&cq->lock, flags); | |
504 | napi_synchronize(&cq->napi); | |
505 | mlx4_en_process_rx_cq(dev, cq, 0); | |
506 | spin_unlock_irqrestore(&cq->lock, flags); | |
507 | } | |
508 | } | |
509 | #endif | |
510 | ||
511 | static void mlx4_en_tx_timeout(struct net_device *dev) | |
512 | { | |
513 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
514 | struct mlx4_en_dev *mdev = priv->mdev; | |
515 | ||
516 | if (netif_msg_timer(priv)) | |
453a6082 | 517 | en_warn(priv, "Tx timeout called on port:%d\n", priv->port); |
c27a02cd | 518 | |
1e338db5 | 519 | priv->port_stats.tx_timeout++; |
453a6082 | 520 | en_dbg(DRV, priv, "Scheduling watchdog\n"); |
1e338db5 | 521 | queue_work(mdev->workqueue, &priv->watchdog_task); |
c27a02cd YP |
522 | } |
523 | ||
524 | ||
525 | static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev) | |
526 | { | |
527 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
528 | ||
529 | spin_lock_bh(&priv->stats_lock); | |
530 | memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats)); | |
531 | spin_unlock_bh(&priv->stats_lock); | |
532 | ||
533 | return &priv->ret_stats; | |
534 | } | |
535 | ||
536 | static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv) | |
537 | { | |
c27a02cd YP |
538 | struct mlx4_en_cq *cq; |
539 | int i; | |
540 | ||
541 | /* If we haven't received a specific coalescing setting | |
98a1708d | 542 | * (module param), we set the moderation parameters as follows: |
c27a02cd YP |
543 | * - moder_cnt is set to the number of mtu sized packets to |
544 | * satisfy our coelsing target. | |
545 | * - moder_time is set to a fixed value. | |
546 | */ | |
3db36fb2 | 547 | priv->rx_frames = MLX4_EN_RX_COAL_TARGET; |
60b9f9e5 | 548 | priv->rx_usecs = MLX4_EN_RX_COAL_TIME; |
a19a848a YP |
549 | priv->tx_frames = MLX4_EN_TX_COAL_PKTS; |
550 | priv->tx_usecs = MLX4_EN_TX_COAL_TIME; | |
453a6082 YP |
551 | en_dbg(INTR, priv, "Default coalesing params for mtu:%d - " |
552 | "rx_frames:%d rx_usecs:%d\n", | |
c27a02cd YP |
553 | priv->dev->mtu, priv->rx_frames, priv->rx_usecs); |
554 | ||
555 | /* Setup cq moderation params */ | |
556 | for (i = 0; i < priv->rx_ring_num; i++) { | |
557 | cq = &priv->rx_cq[i]; | |
558 | cq->moder_cnt = priv->rx_frames; | |
559 | cq->moder_time = priv->rx_usecs; | |
6b4d8d9f AG |
560 | priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; |
561 | priv->last_moder_packets[i] = 0; | |
562 | priv->last_moder_bytes[i] = 0; | |
c27a02cd YP |
563 | } |
564 | ||
565 | for (i = 0; i < priv->tx_ring_num; i++) { | |
566 | cq = &priv->tx_cq[i]; | |
a19a848a YP |
567 | cq->moder_cnt = priv->tx_frames; |
568 | cq->moder_time = priv->tx_usecs; | |
c27a02cd YP |
569 | } |
570 | ||
571 | /* Reset auto-moderation params */ | |
572 | priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW; | |
573 | priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW; | |
574 | priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH; | |
575 | priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH; | |
576 | priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL; | |
60b9f9e5 | 577 | priv->adaptive_rx_coal = 1; |
c27a02cd | 578 | priv->last_moder_jiffies = 0; |
c27a02cd | 579 | priv->last_moder_tx_packets = 0; |
c27a02cd YP |
580 | } |
581 | ||
582 | static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) | |
583 | { | |
584 | unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies); | |
c27a02cd YP |
585 | struct mlx4_en_cq *cq; |
586 | unsigned long packets; | |
587 | unsigned long rate; | |
588 | unsigned long avg_pkt_size; | |
589 | unsigned long rx_packets; | |
590 | unsigned long rx_bytes; | |
c27a02cd YP |
591 | unsigned long rx_pkt_diff; |
592 | int moder_time; | |
6b4d8d9f | 593 | int ring, err; |
c27a02cd YP |
594 | |
595 | if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ) | |
596 | return; | |
597 | ||
6b4d8d9f AG |
598 | for (ring = 0; ring < priv->rx_ring_num; ring++) { |
599 | spin_lock_bh(&priv->stats_lock); | |
600 | rx_packets = priv->rx_ring[ring].packets; | |
601 | rx_bytes = priv->rx_ring[ring].bytes; | |
602 | spin_unlock_bh(&priv->stats_lock); | |
603 | ||
604 | rx_pkt_diff = ((unsigned long) (rx_packets - | |
605 | priv->last_moder_packets[ring])); | |
606 | packets = rx_pkt_diff; | |
607 | rate = packets * HZ / period; | |
608 | avg_pkt_size = packets ? ((unsigned long) (rx_bytes - | |
609 | priv->last_moder_bytes[ring])) / packets : 0; | |
610 | ||
611 | /* Apply auto-moderation only when packet rate | |
612 | * exceeds a rate that it matters */ | |
613 | if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) && | |
614 | avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) { | |
c27a02cd YP |
615 | if (rate < priv->pkt_rate_low) |
616 | moder_time = priv->rx_usecs_low; | |
617 | else if (rate > priv->pkt_rate_high) | |
618 | moder_time = priv->rx_usecs_high; | |
619 | else | |
620 | moder_time = (rate - priv->pkt_rate_low) * | |
621 | (priv->rx_usecs_high - priv->rx_usecs_low) / | |
622 | (priv->pkt_rate_high - priv->pkt_rate_low) + | |
623 | priv->rx_usecs_low; | |
6b4d8d9f AG |
624 | } else { |
625 | moder_time = priv->rx_usecs_low; | |
c27a02cd | 626 | } |
c27a02cd | 627 | |
6b4d8d9f AG |
628 | if (moder_time != priv->last_moder_time[ring]) { |
629 | priv->last_moder_time[ring] = moder_time; | |
630 | cq = &priv->rx_cq[ring]; | |
c27a02cd YP |
631 | cq->moder_time = moder_time; |
632 | err = mlx4_en_set_cq_moder(priv, cq); | |
6b4d8d9f AG |
633 | if (err) |
634 | en_err(priv, "Failed modifying moderation " | |
635 | "for cq:%d\n", ring); | |
c27a02cd | 636 | } |
6b4d8d9f AG |
637 | priv->last_moder_packets[ring] = rx_packets; |
638 | priv->last_moder_bytes[ring] = rx_bytes; | |
c27a02cd YP |
639 | } |
640 | ||
c27a02cd YP |
641 | priv->last_moder_jiffies = jiffies; |
642 | } | |
643 | ||
644 | static void mlx4_en_do_get_stats(struct work_struct *work) | |
645 | { | |
bf6aede7 | 646 | struct delayed_work *delay = to_delayed_work(work); |
c27a02cd YP |
647 | struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, |
648 | stats_task); | |
649 | struct mlx4_en_dev *mdev = priv->mdev; | |
650 | int err; | |
651 | ||
652 | err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0); | |
653 | if (err) | |
2381a55c | 654 | en_dbg(HW, priv, "Could not update stats\n"); |
c27a02cd YP |
655 | |
656 | mutex_lock(&mdev->state_lock); | |
657 | if (mdev->device_up) { | |
658 | if (priv->port_up) | |
659 | mlx4_en_auto_moderation(priv); | |
660 | ||
661 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); | |
662 | } | |
d7e1a487 YP |
663 | if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) { |
664 | queue_work(mdev->workqueue, &priv->mac_task); | |
665 | mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0; | |
666 | } | |
c27a02cd YP |
667 | mutex_unlock(&mdev->state_lock); |
668 | } | |
669 | ||
670 | static void mlx4_en_linkstate(struct work_struct *work) | |
671 | { | |
672 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
673 | linkstate_task); | |
674 | struct mlx4_en_dev *mdev = priv->mdev; | |
675 | int linkstate = priv->link_state; | |
676 | ||
677 | mutex_lock(&mdev->state_lock); | |
678 | /* If observable port state changed set carrier state and | |
679 | * report to system log */ | |
680 | if (priv->last_link_state != linkstate) { | |
681 | if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) { | |
e5cc44b2 | 682 | en_info(priv, "Link Down\n"); |
c27a02cd YP |
683 | netif_carrier_off(priv->dev); |
684 | } else { | |
e5cc44b2 | 685 | en_info(priv, "Link Up\n"); |
c27a02cd YP |
686 | netif_carrier_on(priv->dev); |
687 | } | |
688 | } | |
689 | priv->last_link_state = linkstate; | |
690 | mutex_unlock(&mdev->state_lock); | |
691 | } | |
692 | ||
693 | ||
18cc42a3 | 694 | int mlx4_en_start_port(struct net_device *dev) |
c27a02cd YP |
695 | { |
696 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
697 | struct mlx4_en_dev *mdev = priv->mdev; | |
698 | struct mlx4_en_cq *cq; | |
699 | struct mlx4_en_tx_ring *tx_ring; | |
c27a02cd YP |
700 | int rx_index = 0; |
701 | int tx_index = 0; | |
c27a02cd YP |
702 | int err = 0; |
703 | int i; | |
704 | int j; | |
1679200f | 705 | u8 mc_list[16] = {0}; |
c27a02cd YP |
706 | |
707 | if (priv->port_up) { | |
453a6082 | 708 | en_dbg(DRV, priv, "start port called while port already up\n"); |
c27a02cd YP |
709 | return 0; |
710 | } | |
711 | ||
6d199937 YP |
712 | INIT_LIST_HEAD(&priv->mc_list); |
713 | INIT_LIST_HEAD(&priv->curr_list); | |
714 | ||
c27a02cd YP |
715 | /* Calculate Rx buf size */ |
716 | dev->mtu = min(dev->mtu, priv->max_mtu); | |
717 | mlx4_en_calc_rx_buf(dev); | |
453a6082 | 718 | en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size); |
38aab07c | 719 | |
c27a02cd | 720 | /* Configure rx cq's and rings */ |
38aab07c YP |
721 | err = mlx4_en_activate_rx_rings(priv); |
722 | if (err) { | |
453a6082 | 723 | en_err(priv, "Failed to activate RX rings\n"); |
38aab07c YP |
724 | return err; |
725 | } | |
c27a02cd YP |
726 | for (i = 0; i < priv->rx_ring_num; i++) { |
727 | cq = &priv->rx_cq[i]; | |
c27a02cd | 728 | |
76532d0c | 729 | err = mlx4_en_activate_cq(priv, cq, i); |
c27a02cd | 730 | if (err) { |
453a6082 | 731 | en_err(priv, "Failed activating Rx CQ\n"); |
a4233304 | 732 | goto cq_err; |
c27a02cd YP |
733 | } |
734 | for (j = 0; j < cq->size; j++) | |
735 | cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK; | |
736 | err = mlx4_en_set_cq_moder(priv, cq); | |
737 | if (err) { | |
453a6082 | 738 | en_err(priv, "Failed setting cq moderation parameters"); |
c27a02cd YP |
739 | mlx4_en_deactivate_cq(priv, cq); |
740 | goto cq_err; | |
741 | } | |
742 | mlx4_en_arm_cq(priv, cq); | |
38aab07c | 743 | priv->rx_ring[i].cqn = cq->mcq.cqn; |
c27a02cd YP |
744 | ++rx_index; |
745 | } | |
746 | ||
ffe455ad EE |
747 | /* Set qp number */ |
748 | en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port); | |
749 | err = mlx4_get_eth_qp(mdev->dev, priv->port, | |
750 | priv->mac, &priv->base_qpn); | |
1679200f | 751 | if (err) { |
ffe455ad | 752 | en_err(priv, "Failed getting eth qp\n"); |
1679200f YP |
753 | goto cq_err; |
754 | } | |
755 | mdev->mac_removed[priv->port] = 0; | |
756 | ||
c27a02cd YP |
757 | err = mlx4_en_config_rss_steer(priv); |
758 | if (err) { | |
453a6082 | 759 | en_err(priv, "Failed configuring rss steering\n"); |
1679200f | 760 | goto mac_err; |
c27a02cd YP |
761 | } |
762 | ||
763 | /* Configure tx cq's and rings */ | |
764 | for (i = 0; i < priv->tx_ring_num; i++) { | |
765 | /* Configure cq */ | |
766 | cq = &priv->tx_cq[i]; | |
76532d0c | 767 | err = mlx4_en_activate_cq(priv, cq, i); |
c27a02cd | 768 | if (err) { |
453a6082 | 769 | en_err(priv, "Failed allocating Tx CQ\n"); |
c27a02cd YP |
770 | goto tx_err; |
771 | } | |
772 | err = mlx4_en_set_cq_moder(priv, cq); | |
773 | if (err) { | |
453a6082 | 774 | en_err(priv, "Failed setting cq moderation parameters"); |
c27a02cd YP |
775 | mlx4_en_deactivate_cq(priv, cq); |
776 | goto tx_err; | |
777 | } | |
453a6082 | 778 | en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i); |
c27a02cd YP |
779 | cq->buf->wqe_index = cpu_to_be16(0xffff); |
780 | ||
781 | /* Configure ring */ | |
782 | tx_ring = &priv->tx_ring[i]; | |
0e98b523 | 783 | err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn, |
bc6a4744 | 784 | i / priv->mdev->profile.num_tx_rings_p_up); |
c27a02cd | 785 | if (err) { |
453a6082 | 786 | en_err(priv, "Failed allocating Tx ring\n"); |
c27a02cd YP |
787 | mlx4_en_deactivate_cq(priv, cq); |
788 | goto tx_err; | |
789 | } | |
5b263f53 | 790 | tx_ring->tx_queue = netdev_get_tx_queue(dev, i); |
e22979d9 YP |
791 | |
792 | /* Arm CQ for TX completions */ | |
793 | mlx4_en_arm_cq(priv, cq); | |
794 | ||
c27a02cd YP |
795 | /* Set initial ownership of all Tx TXBBs to SW (1) */ |
796 | for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE) | |
797 | *((u32 *) (tx_ring->buf + j)) = 0xffffffff; | |
798 | ++tx_index; | |
799 | } | |
800 | ||
801 | /* Configure port */ | |
802 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
803 | priv->rx_skb_size + ETH_FCS_LEN, | |
d53b93f2 YP |
804 | priv->prof->tx_pause, |
805 | priv->prof->tx_ppp, | |
806 | priv->prof->rx_pause, | |
807 | priv->prof->rx_ppp); | |
c27a02cd | 808 | if (err) { |
453a6082 YP |
809 | en_err(priv, "Failed setting port general configurations " |
810 | "for port %d, with error %d\n", priv->port, err); | |
c27a02cd YP |
811 | goto tx_err; |
812 | } | |
813 | /* Set default qp number */ | |
814 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); | |
815 | if (err) { | |
453a6082 | 816 | en_err(priv, "Failed setting default qp numbers\n"); |
c27a02cd YP |
817 | goto tx_err; |
818 | } | |
c27a02cd YP |
819 | |
820 | /* Init port */ | |
453a6082 | 821 | en_dbg(HW, priv, "Initializing port\n"); |
c27a02cd YP |
822 | err = mlx4_INIT_PORT(mdev->dev, priv->port); |
823 | if (err) { | |
453a6082 | 824 | en_err(priv, "Failed Initializing port\n"); |
1679200f | 825 | goto tx_err; |
c27a02cd YP |
826 | } |
827 | ||
1679200f YP |
828 | /* Attach rx QP to bradcast address */ |
829 | memset(&mc_list[10], 0xff, ETH_ALEN); | |
830 | mc_list[5] = priv->port; | |
831 | if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list, | |
832 | 0, MLX4_PROT_ETH)) | |
833 | mlx4_warn(mdev, "Failed Attaching Broadcast\n"); | |
834 | ||
b5845f98 HX |
835 | /* Must redo promiscuous mode setup. */ |
836 | priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC); | |
837 | ||
c27a02cd YP |
838 | /* Schedule multicast task to populate multicast list */ |
839 | queue_work(mdev->workqueue, &priv->mcast_task); | |
840 | ||
93ece0c1 EE |
841 | mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap); |
842 | ||
c27a02cd | 843 | priv->port_up = true; |
a11faac7 | 844 | netif_tx_start_all_queues(dev); |
c27a02cd YP |
845 | return 0; |
846 | ||
c27a02cd YP |
847 | tx_err: |
848 | while (tx_index--) { | |
849 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]); | |
850 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]); | |
851 | } | |
852 | ||
853 | mlx4_en_release_rss_steer(priv); | |
1679200f | 854 | mac_err: |
ffe455ad | 855 | mlx4_put_eth_qp(mdev->dev, priv->port, priv->mac, priv->base_qpn); |
c27a02cd YP |
856 | cq_err: |
857 | while (rx_index--) | |
858 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]); | |
38aab07c YP |
859 | for (i = 0; i < priv->rx_ring_num; i++) |
860 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
c27a02cd YP |
861 | |
862 | return err; /* need to close devices */ | |
863 | } | |
864 | ||
865 | ||
18cc42a3 | 866 | void mlx4_en_stop_port(struct net_device *dev) |
c27a02cd YP |
867 | { |
868 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
869 | struct mlx4_en_dev *mdev = priv->mdev; | |
6d199937 | 870 | struct mlx4_en_mc_list *mclist, *tmp; |
c27a02cd | 871 | int i; |
1679200f | 872 | u8 mc_list[16] = {0}; |
c27a02cd YP |
873 | |
874 | if (!priv->port_up) { | |
453a6082 | 875 | en_dbg(DRV, priv, "stop port called while port already down\n"); |
c27a02cd YP |
876 | return; |
877 | } | |
c27a02cd YP |
878 | |
879 | /* Synchronize with tx routine */ | |
880 | netif_tx_lock_bh(dev); | |
3c05f5ef | 881 | netif_tx_stop_all_queues(dev); |
c27a02cd YP |
882 | netif_tx_unlock_bh(dev); |
883 | ||
7c287380 | 884 | /* Set port as not active */ |
3c05f5ef | 885 | priv->port_up = false; |
c27a02cd | 886 | |
1679200f YP |
887 | /* Detach All multicasts */ |
888 | memset(&mc_list[10], 0xff, ETH_ALEN); | |
889 | mc_list[5] = priv->port; | |
890 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list, | |
891 | MLX4_PROT_ETH); | |
6d199937 YP |
892 | list_for_each_entry(mclist, &priv->curr_list, list) { |
893 | memcpy(&mc_list[10], mclist->addr, ETH_ALEN); | |
1679200f YP |
894 | mc_list[5] = priv->port; |
895 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, | |
896 | mc_list, MLX4_PROT_ETH); | |
897 | } | |
898 | mlx4_en_clear_list(dev); | |
6d199937 YP |
899 | list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) { |
900 | list_del(&mclist->list); | |
901 | kfree(mclist); | |
902 | } | |
903 | ||
1679200f YP |
904 | /* Flush multicast filter */ |
905 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); | |
906 | ||
c27a02cd YP |
907 | /* Free TX Rings */ |
908 | for (i = 0; i < priv->tx_ring_num; i++) { | |
909 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]); | |
910 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]); | |
911 | } | |
912 | msleep(10); | |
913 | ||
914 | for (i = 0; i < priv->tx_ring_num; i++) | |
915 | mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]); | |
916 | ||
917 | /* Free RSS qps */ | |
918 | mlx4_en_release_rss_steer(priv); | |
919 | ||
ffe455ad EE |
920 | /* Unregister Mac address for the port */ |
921 | mlx4_put_eth_qp(mdev->dev, priv->port, priv->mac, priv->base_qpn); | |
922 | mdev->mac_removed[priv->port] = 1; | |
923 | ||
c27a02cd YP |
924 | /* Free RX Rings */ |
925 | for (i = 0; i < priv->rx_ring_num; i++) { | |
926 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
927 | while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state)) | |
928 | msleep(1); | |
929 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]); | |
930 | } | |
7c287380 YP |
931 | |
932 | /* close port*/ | |
933 | mlx4_CLOSE_PORT(mdev->dev, priv->port); | |
c27a02cd YP |
934 | } |
935 | ||
936 | static void mlx4_en_restart(struct work_struct *work) | |
937 | { | |
938 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
939 | watchdog_task); | |
940 | struct mlx4_en_dev *mdev = priv->mdev; | |
941 | struct net_device *dev = priv->dev; | |
5b263f53 | 942 | int i; |
c27a02cd | 943 | |
453a6082 | 944 | en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port); |
1e338db5 YP |
945 | |
946 | mutex_lock(&mdev->state_lock); | |
947 | if (priv->port_up) { | |
948 | mlx4_en_stop_port(dev); | |
5b263f53 YP |
949 | for (i = 0; i < priv->tx_ring_num; i++) |
950 | netdev_tx_reset_queue(priv->tx_ring[i].tx_queue); | |
1e338db5 | 951 | if (mlx4_en_start_port(dev)) |
453a6082 | 952 | en_err(priv, "Failed restarting port %d\n", priv->port); |
1e338db5 YP |
953 | } |
954 | mutex_unlock(&mdev->state_lock); | |
c27a02cd YP |
955 | } |
956 | ||
b477ba62 | 957 | static void mlx4_en_clear_stats(struct net_device *dev) |
c27a02cd YP |
958 | { |
959 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
960 | struct mlx4_en_dev *mdev = priv->mdev; | |
961 | int i; | |
c27a02cd | 962 | |
c27a02cd | 963 | if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) |
453a6082 | 964 | en_dbg(HW, priv, "Failed dumping statistics\n"); |
c27a02cd YP |
965 | |
966 | memset(&priv->stats, 0, sizeof(priv->stats)); | |
967 | memset(&priv->pstats, 0, sizeof(priv->pstats)); | |
b477ba62 EE |
968 | memset(&priv->pkstats, 0, sizeof(priv->pkstats)); |
969 | memset(&priv->port_stats, 0, sizeof(priv->port_stats)); | |
c27a02cd YP |
970 | |
971 | for (i = 0; i < priv->tx_ring_num; i++) { | |
972 | priv->tx_ring[i].bytes = 0; | |
973 | priv->tx_ring[i].packets = 0; | |
b477ba62 | 974 | priv->tx_ring[i].tx_csum = 0; |
c27a02cd YP |
975 | } |
976 | for (i = 0; i < priv->rx_ring_num; i++) { | |
977 | priv->rx_ring[i].bytes = 0; | |
978 | priv->rx_ring[i].packets = 0; | |
b477ba62 EE |
979 | priv->rx_ring[i].csum_ok = 0; |
980 | priv->rx_ring[i].csum_none = 0; | |
c27a02cd | 981 | } |
b477ba62 EE |
982 | } |
983 | ||
984 | static int mlx4_en_open(struct net_device *dev) | |
985 | { | |
986 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
987 | struct mlx4_en_dev *mdev = priv->mdev; | |
988 | int err = 0; | |
989 | ||
990 | mutex_lock(&mdev->state_lock); | |
991 | ||
992 | if (!mdev->device_up) { | |
993 | en_err(priv, "Cannot open - device down/disabled\n"); | |
994 | err = -EBUSY; | |
995 | goto out; | |
996 | } | |
997 | ||
998 | /* Reset HW statistics and SW counters */ | |
999 | mlx4_en_clear_stats(dev); | |
c27a02cd | 1000 | |
c27a02cd YP |
1001 | err = mlx4_en_start_port(dev); |
1002 | if (err) | |
453a6082 | 1003 | en_err(priv, "Failed starting port:%d\n", priv->port); |
c27a02cd YP |
1004 | |
1005 | out: | |
1006 | mutex_unlock(&mdev->state_lock); | |
1007 | return err; | |
1008 | } | |
1009 | ||
1010 | ||
1011 | static int mlx4_en_close(struct net_device *dev) | |
1012 | { | |
1013 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
1014 | struct mlx4_en_dev *mdev = priv->mdev; | |
1015 | ||
453a6082 | 1016 | en_dbg(IFDOWN, priv, "Close port called\n"); |
c27a02cd YP |
1017 | |
1018 | mutex_lock(&mdev->state_lock); | |
1019 | ||
1020 | mlx4_en_stop_port(dev); | |
1021 | netif_carrier_off(dev); | |
1022 | ||
1023 | mutex_unlock(&mdev->state_lock); | |
1024 | return 0; | |
1025 | } | |
1026 | ||
fe0af03c | 1027 | void mlx4_en_free_resources(struct mlx4_en_priv *priv) |
c27a02cd YP |
1028 | { |
1029 | int i; | |
1030 | ||
1031 | for (i = 0; i < priv->tx_ring_num; i++) { | |
1032 | if (priv->tx_ring[i].tx_info) | |
1033 | mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); | |
1034 | if (priv->tx_cq[i].buf) | |
fe0af03c | 1035 | mlx4_en_destroy_cq(priv, &priv->tx_cq[i]); |
c27a02cd YP |
1036 | } |
1037 | ||
1038 | for (i = 0; i < priv->rx_ring_num; i++) { | |
1039 | if (priv->rx_ring[i].rx_info) | |
68355f71 TLSC |
1040 | mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i], |
1041 | priv->prof->rx_ring_size, priv->stride); | |
c27a02cd | 1042 | if (priv->rx_cq[i].buf) |
fe0af03c | 1043 | mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); |
c27a02cd | 1044 | } |
044ca2a5 YP |
1045 | |
1046 | if (priv->base_tx_qpn) { | |
1047 | mlx4_qp_release_range(priv->mdev->dev, priv->base_tx_qpn, priv->tx_ring_num); | |
1048 | priv->base_tx_qpn = 0; | |
1049 | } | |
c27a02cd YP |
1050 | } |
1051 | ||
18cc42a3 | 1052 | int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) |
c27a02cd | 1053 | { |
c27a02cd YP |
1054 | struct mlx4_en_port_profile *prof = priv->prof; |
1055 | int i; | |
044ca2a5 | 1056 | int err; |
87a5c389 | 1057 | |
044ca2a5 | 1058 | err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &priv->base_tx_qpn); |
87a5c389 YP |
1059 | if (err) { |
1060 | en_err(priv, "failed reserving range for TX rings\n"); | |
1061 | return err; | |
1062 | } | |
c27a02cd YP |
1063 | |
1064 | /* Create tx Rings */ | |
1065 | for (i = 0; i < priv->tx_ring_num; i++) { | |
1066 | if (mlx4_en_create_cq(priv, &priv->tx_cq[i], | |
1067 | prof->tx_ring_size, i, TX)) | |
1068 | goto err; | |
1069 | ||
044ca2a5 | 1070 | if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], priv->base_tx_qpn + i, |
c27a02cd YP |
1071 | prof->tx_ring_size, TXBB_SIZE)) |
1072 | goto err; | |
1073 | } | |
1074 | ||
1075 | /* Create rx Rings */ | |
1076 | for (i = 0; i < priv->rx_ring_num; i++) { | |
1077 | if (mlx4_en_create_cq(priv, &priv->rx_cq[i], | |
1078 | prof->rx_ring_size, i, RX)) | |
1079 | goto err; | |
1080 | ||
1081 | if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i], | |
1082 | prof->rx_ring_size, priv->stride)) | |
1083 | goto err; | |
1084 | } | |
1085 | ||
1086 | return 0; | |
1087 | ||
1088 | err: | |
453a6082 | 1089 | en_err(priv, "Failed to allocate NIC resources\n"); |
c27a02cd YP |
1090 | return -ENOMEM; |
1091 | } | |
1092 | ||
1093 | ||
1094 | void mlx4_en_destroy_netdev(struct net_device *dev) | |
1095 | { | |
1096 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
1097 | struct mlx4_en_dev *mdev = priv->mdev; | |
1098 | ||
453a6082 | 1099 | en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port); |
c27a02cd YP |
1100 | |
1101 | /* Unregister device - this will close the port if it was up */ | |
1102 | if (priv->registered) | |
1103 | unregister_netdev(dev); | |
1104 | ||
1105 | if (priv->allocated) | |
1106 | mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); | |
1107 | ||
1108 | cancel_delayed_work(&priv->stats_task); | |
c27a02cd YP |
1109 | /* flush any pending task for this netdev */ |
1110 | flush_workqueue(mdev->workqueue); | |
1111 | ||
1112 | /* Detach the netdev so tasks would not attempt to access it */ | |
1113 | mutex_lock(&mdev->state_lock); | |
1114 | mdev->pndev[priv->port] = NULL; | |
1115 | mutex_unlock(&mdev->state_lock); | |
1116 | ||
fe0af03c | 1117 | mlx4_en_free_resources(priv); |
564c274c | 1118 | |
bc6a4744 AV |
1119 | kfree(priv->tx_ring); |
1120 | kfree(priv->tx_cq); | |
1121 | ||
c27a02cd YP |
1122 | free_netdev(dev); |
1123 | } | |
1124 | ||
1125 | static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) | |
1126 | { | |
1127 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
1128 | struct mlx4_en_dev *mdev = priv->mdev; | |
1129 | int err = 0; | |
1130 | ||
453a6082 | 1131 | en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n", |
c27a02cd YP |
1132 | dev->mtu, new_mtu); |
1133 | ||
1134 | if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) { | |
453a6082 | 1135 | en_err(priv, "Bad MTU size:%d.\n", new_mtu); |
c27a02cd YP |
1136 | return -EPERM; |
1137 | } | |
1138 | dev->mtu = new_mtu; | |
1139 | ||
1140 | if (netif_running(dev)) { | |
1141 | mutex_lock(&mdev->state_lock); | |
1142 | if (!mdev->device_up) { | |
1143 | /* NIC is probably restarting - let watchdog task reset | |
1144 | * the port */ | |
453a6082 | 1145 | en_dbg(DRV, priv, "Change MTU called with card down!?\n"); |
c27a02cd YP |
1146 | } else { |
1147 | mlx4_en_stop_port(dev); | |
c27a02cd YP |
1148 | err = mlx4_en_start_port(dev); |
1149 | if (err) { | |
453a6082 | 1150 | en_err(priv, "Failed restarting port:%d\n", |
c27a02cd YP |
1151 | priv->port); |
1152 | queue_work(mdev->workqueue, &priv->watchdog_task); | |
1153 | } | |
1154 | } | |
1155 | mutex_unlock(&mdev->state_lock); | |
1156 | } | |
1157 | return 0; | |
1158 | } | |
1159 | ||
60d6fe99 AV |
1160 | static int mlx4_en_set_features(struct net_device *netdev, |
1161 | netdev_features_t features) | |
1162 | { | |
1163 | struct mlx4_en_priv *priv = netdev_priv(netdev); | |
1164 | ||
1165 | if (features & NETIF_F_LOOPBACK) | |
1166 | priv->ctrl_flags |= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK); | |
1167 | else | |
1168 | priv->ctrl_flags &= | |
1169 | cpu_to_be32(~MLX4_WQE_CTRL_FORCE_LOOPBACK); | |
1170 | ||
1171 | return 0; | |
1172 | ||
1173 | } | |
1174 | ||
3addc568 SH |
1175 | static const struct net_device_ops mlx4_netdev_ops = { |
1176 | .ndo_open = mlx4_en_open, | |
1177 | .ndo_stop = mlx4_en_close, | |
1178 | .ndo_start_xmit = mlx4_en_xmit, | |
f813cad8 | 1179 | .ndo_select_queue = mlx4_en_select_queue, |
3addc568 | 1180 | .ndo_get_stats = mlx4_en_get_stats, |
afc4b13d | 1181 | .ndo_set_rx_mode = mlx4_en_set_multicast, |
3addc568 | 1182 | .ndo_set_mac_address = mlx4_en_set_mac, |
52255bbe | 1183 | .ndo_validate_addr = eth_validate_addr, |
3addc568 SH |
1184 | .ndo_change_mtu = mlx4_en_change_mtu, |
1185 | .ndo_tx_timeout = mlx4_en_tx_timeout, | |
3addc568 SH |
1186 | .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, |
1187 | .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, | |
1188 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1189 | .ndo_poll_controller = mlx4_en_netpoll, | |
1190 | #endif | |
60d6fe99 | 1191 | .ndo_set_features = mlx4_en_set_features, |
897d7846 | 1192 | .ndo_setup_tc = mlx4_en_setup_tc, |
3addc568 SH |
1193 | }; |
1194 | ||
c27a02cd YP |
1195 | int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, |
1196 | struct mlx4_en_port_profile *prof) | |
1197 | { | |
1198 | struct net_device *dev; | |
1199 | struct mlx4_en_priv *priv; | |
1200 | int i; | |
1201 | int err; | |
1202 | ||
f1593d22 TH |
1203 | dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv), |
1204 | prof->tx_ring_num, prof->rx_ring_num); | |
41de8d4c | 1205 | if (dev == NULL) |
c27a02cd | 1206 | return -ENOMEM; |
c27a02cd YP |
1207 | |
1208 | SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev); | |
741a00be | 1209 | dev->dev_id = port - 1; |
c27a02cd YP |
1210 | |
1211 | /* | |
1212 | * Initialize driver private data | |
1213 | */ | |
1214 | ||
1215 | priv = netdev_priv(dev); | |
1216 | memset(priv, 0, sizeof(struct mlx4_en_priv)); | |
1217 | priv->dev = dev; | |
1218 | priv->mdev = mdev; | |
ebf8c9aa | 1219 | priv->ddev = &mdev->pdev->dev; |
c27a02cd YP |
1220 | priv->prof = prof; |
1221 | priv->port = port; | |
1222 | priv->port_up = false; | |
c27a02cd | 1223 | priv->flags = prof->flags; |
60d6fe99 AV |
1224 | priv->ctrl_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE | |
1225 | MLX4_WQE_CTRL_SOLICITED); | |
c27a02cd | 1226 | priv->tx_ring_num = prof->tx_ring_num; |
bc6a4744 AV |
1227 | priv->tx_ring = kzalloc(sizeof(struct mlx4_en_tx_ring) * |
1228 | priv->tx_ring_num, GFP_KERNEL); | |
1229 | if (!priv->tx_ring) { | |
1230 | err = -ENOMEM; | |
1231 | goto out; | |
1232 | } | |
1233 | priv->tx_cq = kzalloc(sizeof(struct mlx4_en_cq) * priv->tx_ring_num, | |
1234 | GFP_KERNEL); | |
1235 | if (!priv->tx_cq) { | |
1236 | err = -ENOMEM; | |
1237 | goto out; | |
1238 | } | |
c27a02cd | 1239 | priv->rx_ring_num = prof->rx_ring_num; |
c27a02cd YP |
1240 | priv->mac_index = -1; |
1241 | priv->msg_enable = MLX4_EN_MSG_LEVEL; | |
1242 | spin_lock_init(&priv->stats_lock); | |
1243 | INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast); | |
1244 | INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac); | |
c27a02cd YP |
1245 | INIT_WORK(&priv->watchdog_task, mlx4_en_restart); |
1246 | INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate); | |
1247 | INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats); | |
564c274c AV |
1248 | #ifdef CONFIG_MLX4_EN_DCB |
1249 | if (!mlx4_is_slave(priv->mdev->dev)) | |
1250 | dev->dcbnl_ops = &mlx4_en_dcbnl_ops; | |
1251 | #endif | |
c27a02cd YP |
1252 | |
1253 | /* Query for default mac and max mtu */ | |
1254 | priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; | |
1255 | priv->mac = mdev->dev->caps.def_mac[priv->port]; | |
1256 | if (ILLEGAL_MAC(priv->mac)) { | |
453a6082 | 1257 | en_err(priv, "Port: %d, invalid mac burned: 0x%llx, quiting\n", |
c27a02cd YP |
1258 | priv->port, priv->mac); |
1259 | err = -EINVAL; | |
1260 | goto out; | |
1261 | } | |
1262 | ||
1263 | priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + | |
1264 | DS_SIZE * MLX4_EN_MAX_RX_FRAGS); | |
1265 | err = mlx4_en_alloc_resources(priv); | |
1266 | if (err) | |
1267 | goto out; | |
1268 | ||
c27a02cd YP |
1269 | /* Allocate page for receive rings */ |
1270 | err = mlx4_alloc_hwq_res(mdev->dev, &priv->res, | |
1271 | MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE); | |
1272 | if (err) { | |
453a6082 | 1273 | en_err(priv, "Failed to allocate page for rx qps\n"); |
c27a02cd YP |
1274 | goto out; |
1275 | } | |
1276 | priv->allocated = 1; | |
1277 | ||
c27a02cd YP |
1278 | /* |
1279 | * Initialize netdev entry points | |
1280 | */ | |
3addc568 | 1281 | dev->netdev_ops = &mlx4_netdev_ops; |
c27a02cd | 1282 | dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT; |
1eb63a28 BH |
1283 | netif_set_real_num_tx_queues(dev, priv->tx_ring_num); |
1284 | netif_set_real_num_rx_queues(dev, priv->rx_ring_num); | |
3addc568 | 1285 | |
c27a02cd YP |
1286 | SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops); |
1287 | ||
1288 | /* Set defualt MAC */ | |
1289 | dev->addr_len = ETH_ALEN; | |
8bf2e58f YP |
1290 | for (i = 0; i < ETH_ALEN; i++) { |
1291 | dev->dev_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); | |
1292 | dev->perm_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); | |
1293 | } | |
c27a02cd YP |
1294 | |
1295 | /* | |
1296 | * Set driver features | |
1297 | */ | |
c8c64cff MM |
1298 | dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
1299 | if (mdev->LSO_support) | |
1300 | dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6; | |
1301 | ||
1302 | dev->vlan_features = dev->hw_features; | |
1303 | ||
ad86107f | 1304 | dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_RXHASH; |
c8c64cff MM |
1305 | dev->features = dev->hw_features | NETIF_F_HIGHDMA | |
1306 | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | | |
1307 | NETIF_F_HW_VLAN_FILTER; | |
60d6fe99 | 1308 | dev->hw_features |= NETIF_F_LOOPBACK; |
c27a02cd YP |
1309 | |
1310 | mdev->pndev[port] = dev; | |
1311 | ||
1312 | netif_carrier_off(dev); | |
1313 | err = register_netdev(dev); | |
1314 | if (err) { | |
453a6082 | 1315 | en_err(priv, "Netdev registration failed for port %d\n", port); |
c27a02cd YP |
1316 | goto out; |
1317 | } | |
4234144f | 1318 | priv->registered = 1; |
453a6082 YP |
1319 | |
1320 | en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num); | |
1321 | en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); | |
1322 | ||
90822265 | 1323 | /* Configure port */ |
5c8e9046 | 1324 | mlx4_en_calc_rx_buf(dev); |
90822265 | 1325 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, |
5c8e9046 YP |
1326 | priv->rx_skb_size + ETH_FCS_LEN, |
1327 | prof->tx_pause, prof->tx_ppp, | |
1328 | prof->rx_pause, prof->rx_ppp); | |
90822265 YP |
1329 | if (err) { |
1330 | en_err(priv, "Failed setting port general configurations " | |
1331 | "for port %d, with error %d\n", priv->port, err); | |
1332 | goto out; | |
1333 | } | |
1334 | ||
1335 | /* Init port */ | |
1336 | en_warn(priv, "Initializing port\n"); | |
1337 | err = mlx4_INIT_PORT(mdev->dev, priv->port); | |
1338 | if (err) { | |
1339 | en_err(priv, "Failed Initializing port\n"); | |
1340 | goto out; | |
1341 | } | |
39f17b44 | 1342 | mlx4_en_set_default_moderation(priv); |
c27a02cd YP |
1343 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); |
1344 | return 0; | |
1345 | ||
1346 | out: | |
1347 | mlx4_en_destroy_netdev(dev); | |
1348 | return err; | |
1349 | } | |
1350 |