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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 | ||
48 | ||
49 | static void mlx4_en_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) | |
50 | { | |
51 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
52 | struct mlx4_en_dev *mdev = priv->mdev; | |
53 | int err; | |
54 | ||
453a6082 | 55 | en_dbg(HW, priv, "Registering VLAN group:%p\n", grp); |
c27a02cd YP |
56 | priv->vlgrp = grp; |
57 | ||
58 | mutex_lock(&mdev->state_lock); | |
59 | if (mdev->device_up && priv->port_up) { | |
60 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, grp); | |
61 | if (err) | |
453a6082 | 62 | en_err(priv, "Failed configuring VLAN filter\n"); |
c27a02cd YP |
63 | } |
64 | mutex_unlock(&mdev->state_lock); | |
65 | } | |
66 | ||
67 | static void mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
68 | { | |
69 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
70 | struct mlx4_en_dev *mdev = priv->mdev; | |
71 | int err; | |
4c3eb3ca | 72 | int idx; |
c27a02cd YP |
73 | |
74 | if (!priv->vlgrp) | |
75 | return; | |
76 | ||
453a6082 YP |
77 | en_dbg(HW, priv, "adding VLAN:%d (vlgrp entry:%p)\n", |
78 | vid, vlan_group_get_device(priv->vlgrp, vid)); | |
c27a02cd YP |
79 | |
80 | /* Add VID to port VLAN filter */ | |
81 | mutex_lock(&mdev->state_lock); | |
82 | if (mdev->device_up && priv->port_up) { | |
83 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp); | |
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 | |
c27a02cd YP |
91 | } |
92 | ||
93 | static void mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
94 | { | |
95 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
96 | struct mlx4_en_dev *mdev = priv->mdev; | |
97 | int err; | |
4c3eb3ca | 98 | int idx; |
c27a02cd YP |
99 | |
100 | if (!priv->vlgrp) | |
101 | return; | |
102 | ||
453a6082 YP |
103 | en_dbg(HW, priv, "Killing VID:%d (vlgrp:%p vlgrp entry:%p)\n", |
104 | vid, priv->vlgrp, vlan_group_get_device(priv->vlgrp, vid)); | |
c27a02cd YP |
105 | vlan_group_set_device(priv->vlgrp, vid, NULL); |
106 | ||
107 | /* Remove VID from port VLAN filter */ | |
108 | mutex_lock(&mdev->state_lock); | |
4c3eb3ca EC |
109 | if (!mlx4_find_cached_vlan(mdev->dev, priv->port, vid, &idx)) |
110 | mlx4_unregister_vlan(mdev->dev, priv->port, idx); | |
111 | else | |
112 | en_err(priv, "could not find vid %d in cache\n", vid); | |
113 | ||
c27a02cd YP |
114 | if (mdev->device_up && priv->port_up) { |
115 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp); | |
116 | if (err) | |
453a6082 | 117 | en_err(priv, "Failed configuring VLAN filter\n"); |
c27a02cd YP |
118 | } |
119 | mutex_unlock(&mdev->state_lock); | |
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 YP |
159 | err = mlx4_replace_mac(mdev->dev, priv->port, |
160 | priv->base_qpn, priv->mac, 0); | |
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); | |
c27a02cd | 173 | |
ff6e2163 JP |
174 | kfree(priv->mc_addrs); |
175 | priv->mc_addrs_cnt = 0; | |
c27a02cd YP |
176 | } |
177 | ||
178 | static void mlx4_en_cache_mclist(struct net_device *dev) | |
179 | { | |
180 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
22bedad3 | 181 | struct netdev_hw_addr *ha; |
ff6e2163 JP |
182 | char *mc_addrs; |
183 | int mc_addrs_cnt = netdev_mc_count(dev); | |
184 | int i; | |
185 | ||
186 | mc_addrs = kmalloc(mc_addrs_cnt * ETH_ALEN, GFP_ATOMIC); | |
187 | if (!mc_addrs) { | |
188 | en_err(priv, "failed to allocate multicast list\n"); | |
189 | return; | |
c27a02cd | 190 | } |
ff6e2163 | 191 | i = 0; |
22bedad3 JP |
192 | netdev_for_each_mc_addr(ha, dev) |
193 | memcpy(mc_addrs + i++ * ETH_ALEN, ha->addr, ETH_ALEN); | |
ff6e2163 JP |
194 | priv->mc_addrs = mc_addrs; |
195 | priv->mc_addrs_cnt = mc_addrs_cnt; | |
c27a02cd YP |
196 | } |
197 | ||
198 | ||
199 | static void mlx4_en_set_multicast(struct net_device *dev) | |
200 | { | |
201 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
202 | ||
203 | if (!priv->port_up) | |
204 | return; | |
205 | ||
206 | queue_work(priv->mdev->workqueue, &priv->mcast_task); | |
207 | } | |
208 | ||
209 | static void mlx4_en_do_set_multicast(struct work_struct *work) | |
210 | { | |
211 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
212 | mcast_task); | |
213 | struct mlx4_en_dev *mdev = priv->mdev; | |
214 | struct net_device *dev = priv->dev; | |
c27a02cd | 215 | u64 mcast_addr = 0; |
1679200f | 216 | u8 mc_list[16] = {0}; |
c27a02cd YP |
217 | int err; |
218 | ||
219 | mutex_lock(&mdev->state_lock); | |
220 | if (!mdev->device_up) { | |
453a6082 YP |
221 | en_dbg(HW, priv, "Card is not up, " |
222 | "ignoring multicast change.\n"); | |
c27a02cd YP |
223 | goto out; |
224 | } | |
225 | if (!priv->port_up) { | |
453a6082 YP |
226 | en_dbg(HW, priv, "Port is down, " |
227 | "ignoring multicast change.\n"); | |
c27a02cd YP |
228 | goto out; |
229 | } | |
230 | ||
231 | /* | |
232 | * Promsicuous mode: disable all filters | |
233 | */ | |
234 | ||
235 | if (dev->flags & IFF_PROMISC) { | |
236 | if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) { | |
237 | if (netif_msg_rx_status(priv)) | |
453a6082 | 238 | en_warn(priv, "Entering promiscuous mode\n"); |
c27a02cd YP |
239 | priv->flags |= MLX4_EN_FLAG_PROMISC; |
240 | ||
241 | /* Enable promiscouos mode */ | |
1679200f YP |
242 | if (!mdev->dev->caps.vep_uc_steering) |
243 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, | |
244 | priv->base_qpn, 1); | |
245 | else | |
246 | err = mlx4_unicast_promisc_add(mdev->dev, priv->base_qpn, | |
247 | priv->port); | |
c27a02cd | 248 | if (err) |
453a6082 | 249 | en_err(priv, "Failed enabling " |
25985edc | 250 | "promiscuous mode\n"); |
c27a02cd YP |
251 | |
252 | /* Disable port multicast filter (unconditionally) */ | |
253 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
254 | 0, MLX4_MCAST_DISABLE); | |
255 | if (err) | |
453a6082 YP |
256 | en_err(priv, "Failed disabling " |
257 | "multicast filter\n"); | |
c27a02cd | 258 | |
1679200f YP |
259 | /* Add the default qp number as multicast promisc */ |
260 | if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { | |
261 | err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, | |
262 | priv->port); | |
263 | if (err) | |
264 | en_err(priv, "Failed entering multicast promisc mode\n"); | |
265 | priv->flags |= MLX4_EN_FLAG_MC_PROMISC; | |
266 | } | |
267 | ||
268 | if (priv->vlgrp) { | |
269 | /* Disable port VLAN filter */ | |
270 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, NULL); | |
271 | if (err) | |
272 | en_err(priv, "Failed disabling VLAN filter\n"); | |
273 | } | |
c27a02cd YP |
274 | } |
275 | goto out; | |
276 | } | |
277 | ||
278 | /* | |
25985edc | 279 | * Not in promiscuous mode |
c27a02cd YP |
280 | */ |
281 | ||
282 | if (priv->flags & MLX4_EN_FLAG_PROMISC) { | |
283 | if (netif_msg_rx_status(priv)) | |
453a6082 | 284 | en_warn(priv, "Leaving promiscuous mode\n"); |
c27a02cd YP |
285 | priv->flags &= ~MLX4_EN_FLAG_PROMISC; |
286 | ||
287 | /* Disable promiscouos mode */ | |
1679200f YP |
288 | if (!mdev->dev->caps.vep_uc_steering) |
289 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, | |
290 | priv->base_qpn, 0); | |
291 | else | |
292 | err = mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn, | |
293 | priv->port); | |
c27a02cd | 294 | if (err) |
25985edc | 295 | en_err(priv, "Failed disabling promiscuous mode\n"); |
c27a02cd | 296 | |
1679200f YP |
297 | /* Disable Multicast promisc */ |
298 | if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { | |
299 | err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, | |
300 | priv->port); | |
301 | if (err) | |
25985edc | 302 | en_err(priv, "Failed disabling multicast promiscuous mode\n"); |
1679200f YP |
303 | priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; |
304 | } | |
305 | ||
c27a02cd YP |
306 | /* Enable port VLAN filter */ |
307 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp); | |
308 | if (err) | |
453a6082 | 309 | en_err(priv, "Failed enabling VLAN filter\n"); |
c27a02cd YP |
310 | } |
311 | ||
312 | /* Enable/disable the multicast filter according to IFF_ALLMULTI */ | |
313 | if (dev->flags & IFF_ALLMULTI) { | |
314 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
315 | 0, MLX4_MCAST_DISABLE); | |
316 | if (err) | |
453a6082 | 317 | en_err(priv, "Failed disabling multicast filter\n"); |
1679200f YP |
318 | |
319 | /* Add the default qp number as multicast promisc */ | |
320 | if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { | |
321 | err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, | |
322 | priv->port); | |
323 | if (err) | |
324 | en_err(priv, "Failed entering multicast promisc mode\n"); | |
325 | priv->flags |= MLX4_EN_FLAG_MC_PROMISC; | |
326 | } | |
c27a02cd | 327 | } else { |
ff6e2163 | 328 | int i; |
1679200f YP |
329 | /* Disable Multicast promisc */ |
330 | if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { | |
331 | err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, | |
332 | priv->port); | |
333 | if (err) | |
25985edc | 334 | en_err(priv, "Failed disabling multicast promiscuous mode\n"); |
1679200f YP |
335 | priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; |
336 | } | |
ff6e2163 | 337 | |
c27a02cd YP |
338 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, |
339 | 0, MLX4_MCAST_DISABLE); | |
340 | if (err) | |
453a6082 | 341 | en_err(priv, "Failed disabling multicast filter\n"); |
c27a02cd | 342 | |
1679200f YP |
343 | /* Detach our qp from all the multicast addresses */ |
344 | for (i = 0; i < priv->mc_addrs_cnt; i++) { | |
345 | memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); | |
346 | mc_list[5] = priv->port; | |
347 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, | |
348 | mc_list, MLX4_PROT_ETH); | |
349 | } | |
c27a02cd YP |
350 | /* Flush mcast filter and init it with broadcast address */ |
351 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST, | |
352 | 1, MLX4_MCAST_CONFIG); | |
353 | ||
354 | /* Update multicast list - we cache all addresses so they won't | |
355 | * change while HW is updated holding the command semaphor */ | |
356 | netif_tx_lock_bh(dev); | |
357 | mlx4_en_cache_mclist(dev); | |
358 | netif_tx_unlock_bh(dev); | |
ff6e2163 JP |
359 | for (i = 0; i < priv->mc_addrs_cnt; i++) { |
360 | mcast_addr = | |
361 | mlx4_en_mac_to_u64(priv->mc_addrs + i * ETH_ALEN); | |
1679200f YP |
362 | memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); |
363 | mc_list[5] = priv->port; | |
364 | mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, | |
365 | mc_list, 0, MLX4_PROT_ETH); | |
c27a02cd YP |
366 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, |
367 | mcast_addr, 0, MLX4_MCAST_CONFIG); | |
368 | } | |
369 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
370 | 0, MLX4_MCAST_ENABLE); | |
371 | if (err) | |
453a6082 | 372 | en_err(priv, "Failed enabling multicast filter\n"); |
c27a02cd YP |
373 | } |
374 | out: | |
375 | mutex_unlock(&mdev->state_lock); | |
376 | } | |
377 | ||
378 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
379 | static void mlx4_en_netpoll(struct net_device *dev) | |
380 | { | |
381 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
382 | struct mlx4_en_cq *cq; | |
383 | unsigned long flags; | |
384 | int i; | |
385 | ||
386 | for (i = 0; i < priv->rx_ring_num; i++) { | |
387 | cq = &priv->rx_cq[i]; | |
388 | spin_lock_irqsave(&cq->lock, flags); | |
389 | napi_synchronize(&cq->napi); | |
390 | mlx4_en_process_rx_cq(dev, cq, 0); | |
391 | spin_unlock_irqrestore(&cq->lock, flags); | |
392 | } | |
393 | } | |
394 | #endif | |
395 | ||
396 | static void mlx4_en_tx_timeout(struct net_device *dev) | |
397 | { | |
398 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
399 | struct mlx4_en_dev *mdev = priv->mdev; | |
400 | ||
401 | if (netif_msg_timer(priv)) | |
453a6082 | 402 | en_warn(priv, "Tx timeout called on port:%d\n", priv->port); |
c27a02cd | 403 | |
1e338db5 | 404 | priv->port_stats.tx_timeout++; |
453a6082 | 405 | en_dbg(DRV, priv, "Scheduling watchdog\n"); |
1e338db5 | 406 | queue_work(mdev->workqueue, &priv->watchdog_task); |
c27a02cd YP |
407 | } |
408 | ||
409 | ||
410 | static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev) | |
411 | { | |
412 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
413 | ||
414 | spin_lock_bh(&priv->stats_lock); | |
415 | memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats)); | |
416 | spin_unlock_bh(&priv->stats_lock); | |
417 | ||
418 | return &priv->ret_stats; | |
419 | } | |
420 | ||
421 | static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv) | |
422 | { | |
c27a02cd YP |
423 | struct mlx4_en_cq *cq; |
424 | int i; | |
425 | ||
426 | /* If we haven't received a specific coalescing setting | |
98a1708d | 427 | * (module param), we set the moderation parameters as follows: |
c27a02cd YP |
428 | * - moder_cnt is set to the number of mtu sized packets to |
429 | * satisfy our coelsing target. | |
430 | * - moder_time is set to a fixed value. | |
431 | */ | |
3db36fb2 | 432 | priv->rx_frames = MLX4_EN_RX_COAL_TARGET; |
60b9f9e5 | 433 | priv->rx_usecs = MLX4_EN_RX_COAL_TIME; |
453a6082 YP |
434 | en_dbg(INTR, priv, "Default coalesing params for mtu:%d - " |
435 | "rx_frames:%d rx_usecs:%d\n", | |
c27a02cd YP |
436 | priv->dev->mtu, priv->rx_frames, priv->rx_usecs); |
437 | ||
438 | /* Setup cq moderation params */ | |
439 | for (i = 0; i < priv->rx_ring_num; i++) { | |
440 | cq = &priv->rx_cq[i]; | |
441 | cq->moder_cnt = priv->rx_frames; | |
442 | cq->moder_time = priv->rx_usecs; | |
443 | } | |
444 | ||
445 | for (i = 0; i < priv->tx_ring_num; i++) { | |
446 | cq = &priv->tx_cq[i]; | |
447 | cq->moder_cnt = MLX4_EN_TX_COAL_PKTS; | |
448 | cq->moder_time = MLX4_EN_TX_COAL_TIME; | |
449 | } | |
450 | ||
451 | /* Reset auto-moderation params */ | |
452 | priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW; | |
453 | priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW; | |
454 | priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH; | |
455 | priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH; | |
456 | priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL; | |
60b9f9e5 | 457 | priv->adaptive_rx_coal = 1; |
c27a02cd YP |
458 | priv->last_moder_time = MLX4_EN_AUTO_CONF; |
459 | priv->last_moder_jiffies = 0; | |
460 | priv->last_moder_packets = 0; | |
461 | priv->last_moder_tx_packets = 0; | |
462 | priv->last_moder_bytes = 0; | |
463 | } | |
464 | ||
465 | static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) | |
466 | { | |
467 | unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies); | |
c27a02cd YP |
468 | struct mlx4_en_cq *cq; |
469 | unsigned long packets; | |
470 | unsigned long rate; | |
471 | unsigned long avg_pkt_size; | |
472 | unsigned long rx_packets; | |
473 | unsigned long rx_bytes; | |
474 | unsigned long tx_packets; | |
475 | unsigned long tx_pkt_diff; | |
476 | unsigned long rx_pkt_diff; | |
477 | int moder_time; | |
478 | int i, err; | |
479 | ||
480 | if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ) | |
481 | return; | |
482 | ||
483 | spin_lock_bh(&priv->stats_lock); | |
484 | rx_packets = priv->stats.rx_packets; | |
485 | rx_bytes = priv->stats.rx_bytes; | |
486 | tx_packets = priv->stats.tx_packets; | |
487 | spin_unlock_bh(&priv->stats_lock); | |
488 | ||
489 | if (!priv->last_moder_jiffies || !period) | |
490 | goto out; | |
491 | ||
492 | tx_pkt_diff = ((unsigned long) (tx_packets - | |
493 | priv->last_moder_tx_packets)); | |
494 | rx_pkt_diff = ((unsigned long) (rx_packets - | |
495 | priv->last_moder_packets)); | |
496 | packets = max(tx_pkt_diff, rx_pkt_diff); | |
497 | rate = packets * HZ / period; | |
498 | avg_pkt_size = packets ? ((unsigned long) (rx_bytes - | |
499 | priv->last_moder_bytes)) / packets : 0; | |
500 | ||
501 | /* Apply auto-moderation only when packet rate exceeds a rate that | |
502 | * it matters */ | |
46afd0fb | 503 | if (rate > MLX4_EN_RX_RATE_THRESH && avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) { |
c27a02cd YP |
504 | /* If tx and rx packet rates are not balanced, assume that |
505 | * traffic is mainly BW bound and apply maximum moderation. | |
506 | * Otherwise, moderate according to packet rate */ | |
46afd0fb YP |
507 | if (2 * tx_pkt_diff > 3 * rx_pkt_diff || |
508 | 2 * rx_pkt_diff > 3 * tx_pkt_diff) { | |
c27a02cd | 509 | moder_time = priv->rx_usecs_high; |
46afd0fb | 510 | } else { |
c27a02cd YP |
511 | if (rate < priv->pkt_rate_low) |
512 | moder_time = priv->rx_usecs_low; | |
513 | else if (rate > priv->pkt_rate_high) | |
514 | moder_time = priv->rx_usecs_high; | |
515 | else | |
516 | moder_time = (rate - priv->pkt_rate_low) * | |
517 | (priv->rx_usecs_high - priv->rx_usecs_low) / | |
518 | (priv->pkt_rate_high - priv->pkt_rate_low) + | |
519 | priv->rx_usecs_low; | |
520 | } | |
521 | } else { | |
46afd0fb | 522 | moder_time = priv->rx_usecs_low; |
c27a02cd YP |
523 | } |
524 | ||
453a6082 YP |
525 | en_dbg(INTR, priv, "tx rate:%lu rx_rate:%lu\n", |
526 | tx_pkt_diff * HZ / period, rx_pkt_diff * HZ / period); | |
c27a02cd | 527 | |
453a6082 YP |
528 | en_dbg(INTR, priv, "Rx moder_time changed from:%d to %d period:%lu " |
529 | "[jiff] packets:%lu avg_pkt_size:%lu rate:%lu [p/s])\n", | |
c27a02cd YP |
530 | priv->last_moder_time, moder_time, period, packets, |
531 | avg_pkt_size, rate); | |
532 | ||
533 | if (moder_time != priv->last_moder_time) { | |
534 | priv->last_moder_time = moder_time; | |
535 | for (i = 0; i < priv->rx_ring_num; i++) { | |
536 | cq = &priv->rx_cq[i]; | |
537 | cq->moder_time = moder_time; | |
538 | err = mlx4_en_set_cq_moder(priv, cq); | |
539 | if (err) { | |
453a6082 | 540 | en_err(priv, "Failed modifying moderation for cq:%d\n", i); |
c27a02cd YP |
541 | break; |
542 | } | |
543 | } | |
544 | } | |
545 | ||
546 | out: | |
547 | priv->last_moder_packets = rx_packets; | |
548 | priv->last_moder_tx_packets = tx_packets; | |
549 | priv->last_moder_bytes = rx_bytes; | |
550 | priv->last_moder_jiffies = jiffies; | |
551 | } | |
552 | ||
553 | static void mlx4_en_do_get_stats(struct work_struct *work) | |
554 | { | |
bf6aede7 | 555 | struct delayed_work *delay = to_delayed_work(work); |
c27a02cd YP |
556 | struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, |
557 | stats_task); | |
558 | struct mlx4_en_dev *mdev = priv->mdev; | |
559 | int err; | |
560 | ||
561 | err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0); | |
562 | if (err) | |
2381a55c | 563 | en_dbg(HW, priv, "Could not update stats\n"); |
c27a02cd YP |
564 | |
565 | mutex_lock(&mdev->state_lock); | |
566 | if (mdev->device_up) { | |
567 | if (priv->port_up) | |
568 | mlx4_en_auto_moderation(priv); | |
569 | ||
570 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); | |
571 | } | |
d7e1a487 YP |
572 | if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) { |
573 | queue_work(mdev->workqueue, &priv->mac_task); | |
574 | mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0; | |
575 | } | |
c27a02cd YP |
576 | mutex_unlock(&mdev->state_lock); |
577 | } | |
578 | ||
579 | static void mlx4_en_linkstate(struct work_struct *work) | |
580 | { | |
581 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
582 | linkstate_task); | |
583 | struct mlx4_en_dev *mdev = priv->mdev; | |
584 | int linkstate = priv->link_state; | |
585 | ||
586 | mutex_lock(&mdev->state_lock); | |
587 | /* If observable port state changed set carrier state and | |
588 | * report to system log */ | |
589 | if (priv->last_link_state != linkstate) { | |
590 | if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) { | |
e5cc44b2 | 591 | en_info(priv, "Link Down\n"); |
c27a02cd YP |
592 | netif_carrier_off(priv->dev); |
593 | } else { | |
e5cc44b2 | 594 | en_info(priv, "Link Up\n"); |
c27a02cd YP |
595 | netif_carrier_on(priv->dev); |
596 | } | |
597 | } | |
598 | priv->last_link_state = linkstate; | |
599 | mutex_unlock(&mdev->state_lock); | |
600 | } | |
601 | ||
602 | ||
18cc42a3 | 603 | int mlx4_en_start_port(struct net_device *dev) |
c27a02cd YP |
604 | { |
605 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
606 | struct mlx4_en_dev *mdev = priv->mdev; | |
607 | struct mlx4_en_cq *cq; | |
608 | struct mlx4_en_tx_ring *tx_ring; | |
c27a02cd YP |
609 | int rx_index = 0; |
610 | int tx_index = 0; | |
c27a02cd YP |
611 | int err = 0; |
612 | int i; | |
613 | int j; | |
1679200f | 614 | u8 mc_list[16] = {0}; |
1fb9876e | 615 | char name[32]; |
c27a02cd YP |
616 | |
617 | if (priv->port_up) { | |
453a6082 | 618 | en_dbg(DRV, priv, "start port called while port already up\n"); |
c27a02cd YP |
619 | return 0; |
620 | } | |
621 | ||
622 | /* Calculate Rx buf size */ | |
623 | dev->mtu = min(dev->mtu, priv->max_mtu); | |
624 | mlx4_en_calc_rx_buf(dev); | |
453a6082 | 625 | en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size); |
38aab07c | 626 | |
c27a02cd | 627 | /* Configure rx cq's and rings */ |
38aab07c YP |
628 | err = mlx4_en_activate_rx_rings(priv); |
629 | if (err) { | |
453a6082 | 630 | en_err(priv, "Failed to activate RX rings\n"); |
38aab07c YP |
631 | return err; |
632 | } | |
c27a02cd YP |
633 | for (i = 0; i < priv->rx_ring_num; i++) { |
634 | cq = &priv->rx_cq[i]; | |
c27a02cd YP |
635 | |
636 | err = mlx4_en_activate_cq(priv, cq); | |
637 | if (err) { | |
453a6082 | 638 | en_err(priv, "Failed activating Rx CQ\n"); |
a4233304 | 639 | goto cq_err; |
c27a02cd YP |
640 | } |
641 | for (j = 0; j < cq->size; j++) | |
642 | cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK; | |
643 | err = mlx4_en_set_cq_moder(priv, cq); | |
644 | if (err) { | |
453a6082 | 645 | en_err(priv, "Failed setting cq moderation parameters"); |
c27a02cd YP |
646 | mlx4_en_deactivate_cq(priv, cq); |
647 | goto cq_err; | |
648 | } | |
649 | mlx4_en_arm_cq(priv, cq); | |
38aab07c | 650 | priv->rx_ring[i].cqn = cq->mcq.cqn; |
c27a02cd YP |
651 | ++rx_index; |
652 | } | |
653 | ||
1679200f YP |
654 | /* Set port mac number */ |
655 | en_dbg(DRV, priv, "Setting mac for port %d\n", priv->port); | |
656 | err = mlx4_register_mac(mdev->dev, priv->port, | |
657 | priv->mac, &priv->base_qpn, 0); | |
658 | if (err) { | |
659 | en_err(priv, "Failed setting port mac\n"); | |
660 | goto cq_err; | |
661 | } | |
662 | mdev->mac_removed[priv->port] = 0; | |
663 | ||
c27a02cd YP |
664 | err = mlx4_en_config_rss_steer(priv); |
665 | if (err) { | |
453a6082 | 666 | en_err(priv, "Failed configuring rss steering\n"); |
1679200f | 667 | goto mac_err; |
c27a02cd YP |
668 | } |
669 | ||
1fb9876e YP |
670 | if (mdev->dev->caps.comp_pool && !priv->tx_vector) { |
671 | sprintf(name , "%s-tx", priv->dev->name); | |
672 | if (mlx4_assign_eq(mdev->dev , name, &priv->tx_vector)) { | |
673 | mlx4_warn(mdev, "Failed Assigning an EQ to " | |
674 | "%s_tx ,Falling back to legacy " | |
675 | "EQ's\n", priv->dev->name); | |
676 | } | |
677 | } | |
c27a02cd YP |
678 | /* Configure tx cq's and rings */ |
679 | for (i = 0; i < priv->tx_ring_num; i++) { | |
680 | /* Configure cq */ | |
681 | cq = &priv->tx_cq[i]; | |
1fb9876e | 682 | cq->vector = priv->tx_vector; |
c27a02cd YP |
683 | err = mlx4_en_activate_cq(priv, cq); |
684 | if (err) { | |
453a6082 | 685 | en_err(priv, "Failed allocating Tx CQ\n"); |
c27a02cd YP |
686 | goto tx_err; |
687 | } | |
688 | err = mlx4_en_set_cq_moder(priv, cq); | |
689 | if (err) { | |
453a6082 | 690 | en_err(priv, "Failed setting cq moderation parameters"); |
c27a02cd YP |
691 | mlx4_en_deactivate_cq(priv, cq); |
692 | goto tx_err; | |
693 | } | |
453a6082 | 694 | en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i); |
c27a02cd YP |
695 | cq->buf->wqe_index = cpu_to_be16(0xffff); |
696 | ||
697 | /* Configure ring */ | |
698 | tx_ring = &priv->tx_ring[i]; | |
9f519f68 | 699 | err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn); |
c27a02cd | 700 | if (err) { |
453a6082 | 701 | en_err(priv, "Failed allocating Tx ring\n"); |
c27a02cd YP |
702 | mlx4_en_deactivate_cq(priv, cq); |
703 | goto tx_err; | |
704 | } | |
705 | /* Set initial ownership of all Tx TXBBs to SW (1) */ | |
706 | for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE) | |
707 | *((u32 *) (tx_ring->buf + j)) = 0xffffffff; | |
708 | ++tx_index; | |
709 | } | |
710 | ||
711 | /* Configure port */ | |
712 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
713 | priv->rx_skb_size + ETH_FCS_LEN, | |
d53b93f2 YP |
714 | priv->prof->tx_pause, |
715 | priv->prof->tx_ppp, | |
716 | priv->prof->rx_pause, | |
717 | priv->prof->rx_ppp); | |
c27a02cd | 718 | if (err) { |
453a6082 YP |
719 | en_err(priv, "Failed setting port general configurations " |
720 | "for port %d, with error %d\n", priv->port, err); | |
c27a02cd YP |
721 | goto tx_err; |
722 | } | |
723 | /* Set default qp number */ | |
724 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); | |
725 | if (err) { | |
453a6082 | 726 | en_err(priv, "Failed setting default qp numbers\n"); |
c27a02cd YP |
727 | goto tx_err; |
728 | } | |
c27a02cd YP |
729 | |
730 | /* Init port */ | |
453a6082 | 731 | en_dbg(HW, priv, "Initializing port\n"); |
c27a02cd YP |
732 | err = mlx4_INIT_PORT(mdev->dev, priv->port); |
733 | if (err) { | |
453a6082 | 734 | en_err(priv, "Failed Initializing port\n"); |
1679200f | 735 | goto tx_err; |
c27a02cd YP |
736 | } |
737 | ||
1679200f YP |
738 | /* Attach rx QP to bradcast address */ |
739 | memset(&mc_list[10], 0xff, ETH_ALEN); | |
740 | mc_list[5] = priv->port; | |
741 | if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list, | |
742 | 0, MLX4_PROT_ETH)) | |
743 | mlx4_warn(mdev, "Failed Attaching Broadcast\n"); | |
744 | ||
b5845f98 HX |
745 | /* Must redo promiscuous mode setup. */ |
746 | priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC); | |
747 | ||
c27a02cd YP |
748 | /* Schedule multicast task to populate multicast list */ |
749 | queue_work(mdev->workqueue, &priv->mcast_task); | |
750 | ||
751 | priv->port_up = true; | |
a11faac7 | 752 | netif_tx_start_all_queues(dev); |
c27a02cd YP |
753 | return 0; |
754 | ||
c27a02cd YP |
755 | tx_err: |
756 | while (tx_index--) { | |
757 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]); | |
758 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]); | |
759 | } | |
760 | ||
761 | mlx4_en_release_rss_steer(priv); | |
1679200f YP |
762 | mac_err: |
763 | mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn); | |
c27a02cd YP |
764 | cq_err: |
765 | while (rx_index--) | |
766 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]); | |
38aab07c YP |
767 | for (i = 0; i < priv->rx_ring_num; i++) |
768 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
c27a02cd YP |
769 | |
770 | return err; /* need to close devices */ | |
771 | } | |
772 | ||
773 | ||
18cc42a3 | 774 | void mlx4_en_stop_port(struct net_device *dev) |
c27a02cd YP |
775 | { |
776 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
777 | struct mlx4_en_dev *mdev = priv->mdev; | |
778 | int i; | |
1679200f | 779 | u8 mc_list[16] = {0}; |
c27a02cd YP |
780 | |
781 | if (!priv->port_up) { | |
453a6082 | 782 | en_dbg(DRV, priv, "stop port called while port already down\n"); |
c27a02cd YP |
783 | return; |
784 | } | |
c27a02cd YP |
785 | |
786 | /* Synchronize with tx routine */ | |
787 | netif_tx_lock_bh(dev); | |
3c05f5ef | 788 | netif_tx_stop_all_queues(dev); |
c27a02cd YP |
789 | netif_tx_unlock_bh(dev); |
790 | ||
7c287380 | 791 | /* Set port as not active */ |
3c05f5ef | 792 | priv->port_up = false; |
c27a02cd | 793 | |
1679200f YP |
794 | /* Detach All multicasts */ |
795 | memset(&mc_list[10], 0xff, ETH_ALEN); | |
796 | mc_list[5] = priv->port; | |
797 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list, | |
798 | MLX4_PROT_ETH); | |
799 | for (i = 0; i < priv->mc_addrs_cnt; i++) { | |
800 | memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); | |
801 | mc_list[5] = priv->port; | |
802 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, | |
803 | mc_list, MLX4_PROT_ETH); | |
804 | } | |
805 | mlx4_en_clear_list(dev); | |
806 | /* Flush multicast filter */ | |
807 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); | |
808 | ||
c27a02cd | 809 | /* Unregister Mac address for the port */ |
1679200f | 810 | mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn); |
d7e1a487 | 811 | mdev->mac_removed[priv->port] = 1; |
c27a02cd YP |
812 | |
813 | /* Free TX Rings */ | |
814 | for (i = 0; i < priv->tx_ring_num; i++) { | |
815 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]); | |
816 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]); | |
817 | } | |
818 | msleep(10); | |
819 | ||
820 | for (i = 0; i < priv->tx_ring_num; i++) | |
821 | mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]); | |
822 | ||
823 | /* Free RSS qps */ | |
824 | mlx4_en_release_rss_steer(priv); | |
825 | ||
826 | /* Free RX Rings */ | |
827 | for (i = 0; i < priv->rx_ring_num; i++) { | |
828 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
829 | while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state)) | |
830 | msleep(1); | |
831 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]); | |
832 | } | |
7c287380 YP |
833 | |
834 | /* close port*/ | |
835 | mlx4_CLOSE_PORT(mdev->dev, priv->port); | |
c27a02cd YP |
836 | } |
837 | ||
838 | static void mlx4_en_restart(struct work_struct *work) | |
839 | { | |
840 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
841 | watchdog_task); | |
842 | struct mlx4_en_dev *mdev = priv->mdev; | |
843 | struct net_device *dev = priv->dev; | |
844 | ||
453a6082 | 845 | en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port); |
1e338db5 YP |
846 | |
847 | mutex_lock(&mdev->state_lock); | |
848 | if (priv->port_up) { | |
849 | mlx4_en_stop_port(dev); | |
850 | if (mlx4_en_start_port(dev)) | |
453a6082 | 851 | en_err(priv, "Failed restarting port %d\n", priv->port); |
1e338db5 YP |
852 | } |
853 | mutex_unlock(&mdev->state_lock); | |
c27a02cd YP |
854 | } |
855 | ||
856 | ||
857 | static int mlx4_en_open(struct net_device *dev) | |
858 | { | |
859 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
860 | struct mlx4_en_dev *mdev = priv->mdev; | |
861 | int i; | |
862 | int err = 0; | |
863 | ||
864 | mutex_lock(&mdev->state_lock); | |
865 | ||
866 | if (!mdev->device_up) { | |
453a6082 | 867 | en_err(priv, "Cannot open - device down/disabled\n"); |
c27a02cd YP |
868 | err = -EBUSY; |
869 | goto out; | |
870 | } | |
871 | ||
872 | /* Reset HW statistics and performance counters */ | |
873 | if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) | |
453a6082 | 874 | en_dbg(HW, priv, "Failed dumping statistics\n"); |
c27a02cd YP |
875 | |
876 | memset(&priv->stats, 0, sizeof(priv->stats)); | |
877 | memset(&priv->pstats, 0, sizeof(priv->pstats)); | |
878 | ||
879 | for (i = 0; i < priv->tx_ring_num; i++) { | |
880 | priv->tx_ring[i].bytes = 0; | |
881 | priv->tx_ring[i].packets = 0; | |
882 | } | |
883 | for (i = 0; i < priv->rx_ring_num; i++) { | |
884 | priv->rx_ring[i].bytes = 0; | |
885 | priv->rx_ring[i].packets = 0; | |
886 | } | |
887 | ||
c27a02cd YP |
888 | err = mlx4_en_start_port(dev); |
889 | if (err) | |
453a6082 | 890 | en_err(priv, "Failed starting port:%d\n", priv->port); |
c27a02cd YP |
891 | |
892 | out: | |
893 | mutex_unlock(&mdev->state_lock); | |
894 | return err; | |
895 | } | |
896 | ||
897 | ||
898 | static int mlx4_en_close(struct net_device *dev) | |
899 | { | |
900 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
901 | struct mlx4_en_dev *mdev = priv->mdev; | |
902 | ||
453a6082 | 903 | en_dbg(IFDOWN, priv, "Close port called\n"); |
c27a02cd YP |
904 | |
905 | mutex_lock(&mdev->state_lock); | |
906 | ||
907 | mlx4_en_stop_port(dev); | |
908 | netif_carrier_off(dev); | |
909 | ||
910 | mutex_unlock(&mdev->state_lock); | |
911 | return 0; | |
912 | } | |
913 | ||
1fb9876e | 914 | void mlx4_en_free_resources(struct mlx4_en_priv *priv, bool reserve_vectors) |
c27a02cd YP |
915 | { |
916 | int i; | |
917 | ||
918 | for (i = 0; i < priv->tx_ring_num; i++) { | |
919 | if (priv->tx_ring[i].tx_info) | |
920 | mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); | |
921 | if (priv->tx_cq[i].buf) | |
1fb9876e | 922 | mlx4_en_destroy_cq(priv, &priv->tx_cq[i], reserve_vectors); |
c27a02cd YP |
923 | } |
924 | ||
925 | for (i = 0; i < priv->rx_ring_num; i++) { | |
926 | if (priv->rx_ring[i].rx_info) | |
927 | mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]); | |
928 | if (priv->rx_cq[i].buf) | |
1fb9876e | 929 | mlx4_en_destroy_cq(priv, &priv->rx_cq[i], reserve_vectors); |
c27a02cd YP |
930 | } |
931 | } | |
932 | ||
18cc42a3 | 933 | int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) |
c27a02cd | 934 | { |
c27a02cd YP |
935 | struct mlx4_en_port_profile *prof = priv->prof; |
936 | int i; | |
87a5c389 YP |
937 | int base_tx_qpn, err; |
938 | ||
939 | err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &base_tx_qpn); | |
940 | if (err) { | |
941 | en_err(priv, "failed reserving range for TX rings\n"); | |
942 | return err; | |
943 | } | |
c27a02cd YP |
944 | |
945 | /* Create tx Rings */ | |
946 | for (i = 0; i < priv->tx_ring_num; i++) { | |
947 | if (mlx4_en_create_cq(priv, &priv->tx_cq[i], | |
948 | prof->tx_ring_size, i, TX)) | |
949 | goto err; | |
950 | ||
87a5c389 | 951 | if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], base_tx_qpn + i, |
c27a02cd YP |
952 | prof->tx_ring_size, TXBB_SIZE)) |
953 | goto err; | |
954 | } | |
955 | ||
956 | /* Create rx Rings */ | |
957 | for (i = 0; i < priv->rx_ring_num; i++) { | |
958 | if (mlx4_en_create_cq(priv, &priv->rx_cq[i], | |
959 | prof->rx_ring_size, i, RX)) | |
960 | goto err; | |
961 | ||
962 | if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i], | |
963 | prof->rx_ring_size, priv->stride)) | |
964 | goto err; | |
965 | } | |
966 | ||
967 | return 0; | |
968 | ||
969 | err: | |
453a6082 | 970 | en_err(priv, "Failed to allocate NIC resources\n"); |
87a5c389 | 971 | mlx4_qp_release_range(priv->mdev->dev, base_tx_qpn, priv->tx_ring_num); |
c27a02cd YP |
972 | return -ENOMEM; |
973 | } | |
974 | ||
975 | ||
976 | void mlx4_en_destroy_netdev(struct net_device *dev) | |
977 | { | |
978 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
979 | struct mlx4_en_dev *mdev = priv->mdev; | |
980 | ||
453a6082 | 981 | en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port); |
c27a02cd YP |
982 | |
983 | /* Unregister device - this will close the port if it was up */ | |
984 | if (priv->registered) | |
985 | unregister_netdev(dev); | |
986 | ||
987 | if (priv->allocated) | |
988 | mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); | |
989 | ||
990 | cancel_delayed_work(&priv->stats_task); | |
c27a02cd YP |
991 | /* flush any pending task for this netdev */ |
992 | flush_workqueue(mdev->workqueue); | |
993 | ||
994 | /* Detach the netdev so tasks would not attempt to access it */ | |
995 | mutex_lock(&mdev->state_lock); | |
996 | mdev->pndev[priv->port] = NULL; | |
997 | mutex_unlock(&mdev->state_lock); | |
998 | ||
1fb9876e | 999 | mlx4_en_free_resources(priv, false); |
c27a02cd YP |
1000 | free_netdev(dev); |
1001 | } | |
1002 | ||
1003 | static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) | |
1004 | { | |
1005 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
1006 | struct mlx4_en_dev *mdev = priv->mdev; | |
1007 | int err = 0; | |
1008 | ||
453a6082 | 1009 | en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n", |
c27a02cd YP |
1010 | dev->mtu, new_mtu); |
1011 | ||
1012 | if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) { | |
453a6082 | 1013 | en_err(priv, "Bad MTU size:%d.\n", new_mtu); |
c27a02cd YP |
1014 | return -EPERM; |
1015 | } | |
1016 | dev->mtu = new_mtu; | |
1017 | ||
1018 | if (netif_running(dev)) { | |
1019 | mutex_lock(&mdev->state_lock); | |
1020 | if (!mdev->device_up) { | |
1021 | /* NIC is probably restarting - let watchdog task reset | |
1022 | * the port */ | |
453a6082 | 1023 | en_dbg(DRV, priv, "Change MTU called with card down!?\n"); |
c27a02cd YP |
1024 | } else { |
1025 | mlx4_en_stop_port(dev); | |
c27a02cd YP |
1026 | err = mlx4_en_start_port(dev); |
1027 | if (err) { | |
453a6082 | 1028 | en_err(priv, "Failed restarting port:%d\n", |
c27a02cd YP |
1029 | priv->port); |
1030 | queue_work(mdev->workqueue, &priv->watchdog_task); | |
1031 | } | |
1032 | } | |
1033 | mutex_unlock(&mdev->state_lock); | |
1034 | } | |
1035 | return 0; | |
1036 | } | |
1037 | ||
3addc568 SH |
1038 | static const struct net_device_ops mlx4_netdev_ops = { |
1039 | .ndo_open = mlx4_en_open, | |
1040 | .ndo_stop = mlx4_en_close, | |
1041 | .ndo_start_xmit = mlx4_en_xmit, | |
f813cad8 | 1042 | .ndo_select_queue = mlx4_en_select_queue, |
3addc568 SH |
1043 | .ndo_get_stats = mlx4_en_get_stats, |
1044 | .ndo_set_multicast_list = mlx4_en_set_multicast, | |
1045 | .ndo_set_mac_address = mlx4_en_set_mac, | |
52255bbe | 1046 | .ndo_validate_addr = eth_validate_addr, |
3addc568 SH |
1047 | .ndo_change_mtu = mlx4_en_change_mtu, |
1048 | .ndo_tx_timeout = mlx4_en_tx_timeout, | |
1049 | .ndo_vlan_rx_register = mlx4_en_vlan_rx_register, | |
1050 | .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, | |
1051 | .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, | |
1052 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1053 | .ndo_poll_controller = mlx4_en_netpoll, | |
1054 | #endif | |
1055 | }; | |
1056 | ||
c27a02cd YP |
1057 | int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, |
1058 | struct mlx4_en_port_profile *prof) | |
1059 | { | |
1060 | struct net_device *dev; | |
1061 | struct mlx4_en_priv *priv; | |
1062 | int i; | |
1063 | int err; | |
1064 | ||
f1593d22 TH |
1065 | dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv), |
1066 | prof->tx_ring_num, prof->rx_ring_num); | |
c27a02cd YP |
1067 | if (dev == NULL) { |
1068 | mlx4_err(mdev, "Net device allocation failed\n"); | |
1069 | return -ENOMEM; | |
1070 | } | |
1071 | ||
1072 | SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev); | |
741a00be | 1073 | dev->dev_id = port - 1; |
c27a02cd YP |
1074 | |
1075 | /* | |
1076 | * Initialize driver private data | |
1077 | */ | |
1078 | ||
1079 | priv = netdev_priv(dev); | |
1080 | memset(priv, 0, sizeof(struct mlx4_en_priv)); | |
1081 | priv->dev = dev; | |
1082 | priv->mdev = mdev; | |
1083 | priv->prof = prof; | |
1084 | priv->port = port; | |
1085 | priv->port_up = false; | |
1086 | priv->rx_csum = 1; | |
1087 | priv->flags = prof->flags; | |
1088 | priv->tx_ring_num = prof->tx_ring_num; | |
1089 | priv->rx_ring_num = prof->rx_ring_num; | |
c27a02cd YP |
1090 | priv->mac_index = -1; |
1091 | priv->msg_enable = MLX4_EN_MSG_LEVEL; | |
1092 | spin_lock_init(&priv->stats_lock); | |
1093 | INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast); | |
1094 | INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac); | |
c27a02cd YP |
1095 | INIT_WORK(&priv->watchdog_task, mlx4_en_restart); |
1096 | INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate); | |
1097 | INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats); | |
1098 | ||
1099 | /* Query for default mac and max mtu */ | |
1100 | priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; | |
1101 | priv->mac = mdev->dev->caps.def_mac[priv->port]; | |
1102 | if (ILLEGAL_MAC(priv->mac)) { | |
453a6082 | 1103 | en_err(priv, "Port: %d, invalid mac burned: 0x%llx, quiting\n", |
c27a02cd YP |
1104 | priv->port, priv->mac); |
1105 | err = -EINVAL; | |
1106 | goto out; | |
1107 | } | |
1108 | ||
1109 | priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + | |
1110 | DS_SIZE * MLX4_EN_MAX_RX_FRAGS); | |
1111 | err = mlx4_en_alloc_resources(priv); | |
1112 | if (err) | |
1113 | goto out; | |
1114 | ||
c27a02cd YP |
1115 | /* Allocate page for receive rings */ |
1116 | err = mlx4_alloc_hwq_res(mdev->dev, &priv->res, | |
1117 | MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE); | |
1118 | if (err) { | |
453a6082 | 1119 | en_err(priv, "Failed to allocate page for rx qps\n"); |
c27a02cd YP |
1120 | goto out; |
1121 | } | |
1122 | priv->allocated = 1; | |
1123 | ||
c27a02cd YP |
1124 | /* |
1125 | * Initialize netdev entry points | |
1126 | */ | |
3addc568 | 1127 | dev->netdev_ops = &mlx4_netdev_ops; |
c27a02cd | 1128 | dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT; |
1eb63a28 BH |
1129 | netif_set_real_num_tx_queues(dev, priv->tx_ring_num); |
1130 | netif_set_real_num_rx_queues(dev, priv->rx_ring_num); | |
3addc568 | 1131 | |
c27a02cd YP |
1132 | SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops); |
1133 | ||
1134 | /* Set defualt MAC */ | |
1135 | dev->addr_len = ETH_ALEN; | |
8bf2e58f YP |
1136 | for (i = 0; i < ETH_ALEN; i++) { |
1137 | dev->dev_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); | |
1138 | dev->perm_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); | |
1139 | } | |
c27a02cd YP |
1140 | |
1141 | /* | |
1142 | * Set driver features | |
1143 | */ | |
1144 | dev->features |= NETIF_F_SG; | |
e486973e | 1145 | dev->vlan_features |= NETIF_F_SG; |
45b4d66d | 1146 | dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
e486973e | 1147 | dev->vlan_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
c27a02cd YP |
1148 | dev->features |= NETIF_F_HIGHDMA; |
1149 | dev->features |= NETIF_F_HW_VLAN_TX | | |
1150 | NETIF_F_HW_VLAN_RX | | |
1151 | NETIF_F_HW_VLAN_FILTER; | |
fa37a958 | 1152 | dev->features |= NETIF_F_GRO; |
c27a02cd YP |
1153 | if (mdev->LSO_support) { |
1154 | dev->features |= NETIF_F_TSO; | |
1155 | dev->features |= NETIF_F_TSO6; | |
e486973e YP |
1156 | dev->vlan_features |= NETIF_F_TSO; |
1157 | dev->vlan_features |= NETIF_F_TSO6; | |
c27a02cd YP |
1158 | } |
1159 | ||
1160 | mdev->pndev[port] = dev; | |
1161 | ||
1162 | netif_carrier_off(dev); | |
1163 | err = register_netdev(dev); | |
1164 | if (err) { | |
453a6082 | 1165 | en_err(priv, "Netdev registration failed for port %d\n", port); |
c27a02cd YP |
1166 | goto out; |
1167 | } | |
453a6082 YP |
1168 | |
1169 | en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num); | |
1170 | en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); | |
1171 | ||
90822265 YP |
1172 | /* Configure port */ |
1173 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
1174 | MLX4_EN_MIN_MTU, | |
1175 | 0, 0, 0, 0); | |
1176 | if (err) { | |
1177 | en_err(priv, "Failed setting port general configurations " | |
1178 | "for port %d, with error %d\n", priv->port, err); | |
1179 | goto out; | |
1180 | } | |
1181 | ||
1182 | /* Init port */ | |
1183 | en_warn(priv, "Initializing port\n"); | |
1184 | err = mlx4_INIT_PORT(mdev->dev, priv->port); | |
1185 | if (err) { | |
1186 | en_err(priv, "Failed Initializing port\n"); | |
1187 | goto out; | |
1188 | } | |
c27a02cd | 1189 | priv->registered = 1; |
39f17b44 | 1190 | mlx4_en_set_default_moderation(priv); |
c27a02cd YP |
1191 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); |
1192 | return 0; | |
1193 | ||
1194 | out: | |
1195 | mlx4_en_destroy_netdev(dev); | |
1196 | return err; | |
1197 | } | |
1198 |