Commit | Line | Data |
---|---|---|
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 | ||
c27a02cd YP |
48 | static void mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
49 | { | |
50 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
51 | struct mlx4_en_dev *mdev = priv->mdev; | |
52 | int err; | |
4c3eb3ca | 53 | int idx; |
c27a02cd | 54 | |
f1b553fb | 55 | en_dbg(HW, priv, "adding VLAN:%d\n", vid); |
c27a02cd | 56 | |
f1b553fb | 57 | set_bit(vid, priv->active_vlans); |
c27a02cd YP |
58 | |
59 | /* Add VID to port VLAN filter */ | |
60 | mutex_lock(&mdev->state_lock); | |
61 | if (mdev->device_up && priv->port_up) { | |
f1b553fb | 62 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); |
c27a02cd | 63 | if (err) |
453a6082 | 64 | en_err(priv, "Failed configuring VLAN filter\n"); |
c27a02cd | 65 | } |
4c3eb3ca EC |
66 | if (mlx4_register_vlan(mdev->dev, priv->port, vid, &idx)) |
67 | en_err(priv, "failed adding vlan %d\n", vid); | |
c27a02cd | 68 | mutex_unlock(&mdev->state_lock); |
4c3eb3ca | 69 | |
c27a02cd YP |
70 | } |
71 | ||
72 | static void mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
73 | { | |
74 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
75 | struct mlx4_en_dev *mdev = priv->mdev; | |
76 | int err; | |
4c3eb3ca | 77 | int idx; |
c27a02cd | 78 | |
f1b553fb | 79 | en_dbg(HW, priv, "Killing VID:%d\n", vid); |
c27a02cd | 80 | |
f1b553fb | 81 | clear_bit(vid, priv->active_vlans); |
c27a02cd YP |
82 | |
83 | /* Remove VID from port VLAN filter */ | |
84 | mutex_lock(&mdev->state_lock); | |
4c3eb3ca EC |
85 | if (!mlx4_find_cached_vlan(mdev->dev, priv->port, vid, &idx)) |
86 | mlx4_unregister_vlan(mdev->dev, priv->port, idx); | |
87 | else | |
88 | en_err(priv, "could not find vid %d in cache\n", vid); | |
89 | ||
c27a02cd | 90 | if (mdev->device_up && priv->port_up) { |
f1b553fb | 91 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); |
c27a02cd | 92 | if (err) |
453a6082 | 93 | en_err(priv, "Failed configuring VLAN filter\n"); |
c27a02cd YP |
94 | } |
95 | mutex_unlock(&mdev->state_lock); | |
96 | } | |
97 | ||
e7c1c2c4 | 98 | u64 mlx4_en_mac_to_u64(u8 *addr) |
c27a02cd YP |
99 | { |
100 | u64 mac = 0; | |
101 | int i; | |
102 | ||
103 | for (i = 0; i < ETH_ALEN; i++) { | |
104 | mac <<= 8; | |
105 | mac |= addr[i]; | |
106 | } | |
107 | return mac; | |
108 | } | |
109 | ||
110 | static int mlx4_en_set_mac(struct net_device *dev, void *addr) | |
111 | { | |
112 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
113 | struct mlx4_en_dev *mdev = priv->mdev; | |
114 | struct sockaddr *saddr = addr; | |
115 | ||
116 | if (!is_valid_ether_addr(saddr->sa_data)) | |
117 | return -EADDRNOTAVAIL; | |
118 | ||
119 | memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN); | |
120 | priv->mac = mlx4_en_mac_to_u64(dev->dev_addr); | |
121 | queue_work(mdev->workqueue, &priv->mac_task); | |
122 | return 0; | |
123 | } | |
124 | ||
125 | static void mlx4_en_do_set_mac(struct work_struct *work) | |
126 | { | |
127 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
128 | mac_task); | |
129 | struct mlx4_en_dev *mdev = priv->mdev; | |
130 | int err = 0; | |
131 | ||
132 | mutex_lock(&mdev->state_lock); | |
133 | if (priv->port_up) { | |
134 | /* Remove old MAC and insert the new one */ | |
1679200f YP |
135 | err = mlx4_replace_mac(mdev->dev, priv->port, |
136 | priv->base_qpn, priv->mac, 0); | |
c27a02cd | 137 | if (err) |
453a6082 | 138 | en_err(priv, "Failed changing HW MAC address\n"); |
c27a02cd | 139 | } else |
453a6082 YP |
140 | en_dbg(HW, priv, "Port is down while " |
141 | "registering mac, exiting...\n"); | |
c27a02cd YP |
142 | |
143 | mutex_unlock(&mdev->state_lock); | |
144 | } | |
145 | ||
146 | static void mlx4_en_clear_list(struct net_device *dev) | |
147 | { | |
148 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
c27a02cd | 149 | |
ff6e2163 JP |
150 | kfree(priv->mc_addrs); |
151 | priv->mc_addrs_cnt = 0; | |
c27a02cd YP |
152 | } |
153 | ||
154 | static void mlx4_en_cache_mclist(struct net_device *dev) | |
155 | { | |
156 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
22bedad3 | 157 | struct netdev_hw_addr *ha; |
ff6e2163 JP |
158 | char *mc_addrs; |
159 | int mc_addrs_cnt = netdev_mc_count(dev); | |
160 | int i; | |
161 | ||
162 | mc_addrs = kmalloc(mc_addrs_cnt * ETH_ALEN, GFP_ATOMIC); | |
163 | if (!mc_addrs) { | |
164 | en_err(priv, "failed to allocate multicast list\n"); | |
165 | return; | |
c27a02cd | 166 | } |
ff6e2163 | 167 | i = 0; |
22bedad3 JP |
168 | netdev_for_each_mc_addr(ha, dev) |
169 | memcpy(mc_addrs + i++ * ETH_ALEN, ha->addr, ETH_ALEN); | |
ff6e2163 JP |
170 | priv->mc_addrs = mc_addrs; |
171 | priv->mc_addrs_cnt = mc_addrs_cnt; | |
c27a02cd YP |
172 | } |
173 | ||
174 | ||
175 | static void mlx4_en_set_multicast(struct net_device *dev) | |
176 | { | |
177 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
178 | ||
179 | if (!priv->port_up) | |
180 | return; | |
181 | ||
182 | queue_work(priv->mdev->workqueue, &priv->mcast_task); | |
183 | } | |
184 | ||
185 | static void mlx4_en_do_set_multicast(struct work_struct *work) | |
186 | { | |
187 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
188 | mcast_task); | |
189 | struct mlx4_en_dev *mdev = priv->mdev; | |
190 | struct net_device *dev = priv->dev; | |
c27a02cd | 191 | u64 mcast_addr = 0; |
1679200f | 192 | u8 mc_list[16] = {0}; |
c27a02cd YP |
193 | int err; |
194 | ||
195 | mutex_lock(&mdev->state_lock); | |
196 | if (!mdev->device_up) { | |
453a6082 YP |
197 | en_dbg(HW, priv, "Card is not up, " |
198 | "ignoring multicast change.\n"); | |
c27a02cd YP |
199 | goto out; |
200 | } | |
201 | if (!priv->port_up) { | |
453a6082 YP |
202 | en_dbg(HW, priv, "Port is down, " |
203 | "ignoring multicast change.\n"); | |
c27a02cd YP |
204 | goto out; |
205 | } | |
206 | ||
207 | /* | |
208 | * Promsicuous mode: disable all filters | |
209 | */ | |
210 | ||
211 | if (dev->flags & IFF_PROMISC) { | |
212 | if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) { | |
213 | if (netif_msg_rx_status(priv)) | |
453a6082 | 214 | en_warn(priv, "Entering promiscuous mode\n"); |
c27a02cd YP |
215 | priv->flags |= MLX4_EN_FLAG_PROMISC; |
216 | ||
217 | /* Enable promiscouos mode */ | |
ccf86321 OG |
218 | if (!(mdev->dev->caps.flags & |
219 | MLX4_DEV_CAP_FLAG_VEP_UC_STEER)) | |
1679200f YP |
220 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, |
221 | priv->base_qpn, 1); | |
222 | else | |
223 | err = mlx4_unicast_promisc_add(mdev->dev, priv->base_qpn, | |
224 | priv->port); | |
c27a02cd | 225 | if (err) |
453a6082 | 226 | en_err(priv, "Failed enabling " |
25985edc | 227 | "promiscuous mode\n"); |
c27a02cd YP |
228 | |
229 | /* Disable port multicast filter (unconditionally) */ | |
230 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
231 | 0, MLX4_MCAST_DISABLE); | |
232 | if (err) | |
453a6082 YP |
233 | en_err(priv, "Failed disabling " |
234 | "multicast filter\n"); | |
c27a02cd | 235 | |
1679200f YP |
236 | /* Add the default qp number as multicast promisc */ |
237 | if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { | |
238 | err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, | |
239 | priv->port); | |
240 | if (err) | |
241 | en_err(priv, "Failed entering multicast promisc mode\n"); | |
242 | priv->flags |= MLX4_EN_FLAG_MC_PROMISC; | |
243 | } | |
244 | ||
f1b553fb JP |
245 | /* Disable port VLAN filter */ |
246 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); | |
247 | if (err) | |
248 | en_err(priv, "Failed disabling VLAN filter\n"); | |
c27a02cd YP |
249 | } |
250 | goto out; | |
251 | } | |
252 | ||
253 | /* | |
25985edc | 254 | * Not in promiscuous mode |
c27a02cd YP |
255 | */ |
256 | ||
257 | if (priv->flags & MLX4_EN_FLAG_PROMISC) { | |
258 | if (netif_msg_rx_status(priv)) | |
453a6082 | 259 | en_warn(priv, "Leaving promiscuous mode\n"); |
c27a02cd YP |
260 | priv->flags &= ~MLX4_EN_FLAG_PROMISC; |
261 | ||
262 | /* Disable promiscouos mode */ | |
ccf86321 | 263 | if (!(mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER)) |
1679200f YP |
264 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, |
265 | priv->base_qpn, 0); | |
266 | else | |
267 | err = mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn, | |
268 | priv->port); | |
c27a02cd | 269 | if (err) |
25985edc | 270 | en_err(priv, "Failed disabling promiscuous mode\n"); |
c27a02cd | 271 | |
1679200f YP |
272 | /* Disable Multicast promisc */ |
273 | if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { | |
274 | err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, | |
275 | priv->port); | |
276 | if (err) | |
25985edc | 277 | en_err(priv, "Failed disabling multicast promiscuous mode\n"); |
1679200f YP |
278 | priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; |
279 | } | |
280 | ||
c27a02cd | 281 | /* Enable port VLAN filter */ |
f1b553fb | 282 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); |
c27a02cd | 283 | if (err) |
453a6082 | 284 | en_err(priv, "Failed enabling VLAN filter\n"); |
c27a02cd YP |
285 | } |
286 | ||
287 | /* Enable/disable the multicast filter according to IFF_ALLMULTI */ | |
288 | if (dev->flags & IFF_ALLMULTI) { | |
289 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
290 | 0, MLX4_MCAST_DISABLE); | |
291 | if (err) | |
453a6082 | 292 | en_err(priv, "Failed disabling multicast filter\n"); |
1679200f YP |
293 | |
294 | /* Add the default qp number as multicast promisc */ | |
295 | if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { | |
296 | err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, | |
297 | priv->port); | |
298 | if (err) | |
299 | en_err(priv, "Failed entering multicast promisc mode\n"); | |
300 | priv->flags |= MLX4_EN_FLAG_MC_PROMISC; | |
301 | } | |
c27a02cd | 302 | } else { |
ff6e2163 | 303 | int i; |
1679200f YP |
304 | /* Disable Multicast promisc */ |
305 | if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { | |
306 | err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, | |
307 | priv->port); | |
308 | if (err) | |
25985edc | 309 | en_err(priv, "Failed disabling multicast promiscuous mode\n"); |
1679200f YP |
310 | priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; |
311 | } | |
ff6e2163 | 312 | |
c27a02cd YP |
313 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, |
314 | 0, MLX4_MCAST_DISABLE); | |
315 | if (err) | |
453a6082 | 316 | en_err(priv, "Failed disabling multicast filter\n"); |
c27a02cd | 317 | |
1679200f YP |
318 | /* Detach our qp from all the multicast addresses */ |
319 | for (i = 0; i < priv->mc_addrs_cnt; i++) { | |
320 | memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); | |
321 | mc_list[5] = priv->port; | |
322 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, | |
323 | mc_list, MLX4_PROT_ETH); | |
324 | } | |
c27a02cd YP |
325 | /* Flush mcast filter and init it with broadcast address */ |
326 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST, | |
327 | 1, MLX4_MCAST_CONFIG); | |
328 | ||
329 | /* Update multicast list - we cache all addresses so they won't | |
330 | * change while HW is updated holding the command semaphor */ | |
331 | netif_tx_lock_bh(dev); | |
332 | mlx4_en_cache_mclist(dev); | |
333 | netif_tx_unlock_bh(dev); | |
ff6e2163 JP |
334 | for (i = 0; i < priv->mc_addrs_cnt; i++) { |
335 | mcast_addr = | |
336 | mlx4_en_mac_to_u64(priv->mc_addrs + i * ETH_ALEN); | |
1679200f YP |
337 | memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); |
338 | mc_list[5] = priv->port; | |
339 | mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, | |
340 | mc_list, 0, MLX4_PROT_ETH); | |
c27a02cd YP |
341 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, |
342 | mcast_addr, 0, MLX4_MCAST_CONFIG); | |
343 | } | |
344 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
345 | 0, MLX4_MCAST_ENABLE); | |
346 | if (err) | |
453a6082 | 347 | en_err(priv, "Failed enabling multicast filter\n"); |
c27a02cd YP |
348 | } |
349 | out: | |
350 | mutex_unlock(&mdev->state_lock); | |
351 | } | |
352 | ||
353 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
354 | static void mlx4_en_netpoll(struct net_device *dev) | |
355 | { | |
356 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
357 | struct mlx4_en_cq *cq; | |
358 | unsigned long flags; | |
359 | int i; | |
360 | ||
361 | for (i = 0; i < priv->rx_ring_num; i++) { | |
362 | cq = &priv->rx_cq[i]; | |
363 | spin_lock_irqsave(&cq->lock, flags); | |
364 | napi_synchronize(&cq->napi); | |
365 | mlx4_en_process_rx_cq(dev, cq, 0); | |
366 | spin_unlock_irqrestore(&cq->lock, flags); | |
367 | } | |
368 | } | |
369 | #endif | |
370 | ||
371 | static void mlx4_en_tx_timeout(struct net_device *dev) | |
372 | { | |
373 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
374 | struct mlx4_en_dev *mdev = priv->mdev; | |
375 | ||
376 | if (netif_msg_timer(priv)) | |
453a6082 | 377 | en_warn(priv, "Tx timeout called on port:%d\n", priv->port); |
c27a02cd | 378 | |
1e338db5 | 379 | priv->port_stats.tx_timeout++; |
453a6082 | 380 | en_dbg(DRV, priv, "Scheduling watchdog\n"); |
1e338db5 | 381 | queue_work(mdev->workqueue, &priv->watchdog_task); |
c27a02cd YP |
382 | } |
383 | ||
384 | ||
385 | static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev) | |
386 | { | |
387 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
388 | ||
389 | spin_lock_bh(&priv->stats_lock); | |
390 | memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats)); | |
391 | spin_unlock_bh(&priv->stats_lock); | |
392 | ||
393 | return &priv->ret_stats; | |
394 | } | |
395 | ||
396 | static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv) | |
397 | { | |
c27a02cd YP |
398 | struct mlx4_en_cq *cq; |
399 | int i; | |
400 | ||
401 | /* If we haven't received a specific coalescing setting | |
98a1708d | 402 | * (module param), we set the moderation parameters as follows: |
c27a02cd YP |
403 | * - moder_cnt is set to the number of mtu sized packets to |
404 | * satisfy our coelsing target. | |
405 | * - moder_time is set to a fixed value. | |
406 | */ | |
3db36fb2 | 407 | priv->rx_frames = MLX4_EN_RX_COAL_TARGET; |
60b9f9e5 | 408 | priv->rx_usecs = MLX4_EN_RX_COAL_TIME; |
453a6082 YP |
409 | en_dbg(INTR, priv, "Default coalesing params for mtu:%d - " |
410 | "rx_frames:%d rx_usecs:%d\n", | |
c27a02cd YP |
411 | priv->dev->mtu, priv->rx_frames, priv->rx_usecs); |
412 | ||
413 | /* Setup cq moderation params */ | |
414 | for (i = 0; i < priv->rx_ring_num; i++) { | |
415 | cq = &priv->rx_cq[i]; | |
416 | cq->moder_cnt = priv->rx_frames; | |
417 | cq->moder_time = priv->rx_usecs; | |
6b4d8d9f AG |
418 | priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; |
419 | priv->last_moder_packets[i] = 0; | |
420 | priv->last_moder_bytes[i] = 0; | |
c27a02cd YP |
421 | } |
422 | ||
423 | for (i = 0; i < priv->tx_ring_num; i++) { | |
424 | cq = &priv->tx_cq[i]; | |
425 | cq->moder_cnt = MLX4_EN_TX_COAL_PKTS; | |
426 | cq->moder_time = MLX4_EN_TX_COAL_TIME; | |
427 | } | |
428 | ||
429 | /* Reset auto-moderation params */ | |
430 | priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW; | |
431 | priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW; | |
432 | priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH; | |
433 | priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH; | |
434 | priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL; | |
60b9f9e5 | 435 | priv->adaptive_rx_coal = 1; |
c27a02cd | 436 | priv->last_moder_jiffies = 0; |
c27a02cd | 437 | priv->last_moder_tx_packets = 0; |
c27a02cd YP |
438 | } |
439 | ||
440 | static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) | |
441 | { | |
442 | unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies); | |
c27a02cd YP |
443 | struct mlx4_en_cq *cq; |
444 | unsigned long packets; | |
445 | unsigned long rate; | |
446 | unsigned long avg_pkt_size; | |
447 | unsigned long rx_packets; | |
448 | unsigned long rx_bytes; | |
c27a02cd YP |
449 | unsigned long rx_pkt_diff; |
450 | int moder_time; | |
6b4d8d9f | 451 | int ring, err; |
c27a02cd YP |
452 | |
453 | if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ) | |
454 | return; | |
455 | ||
6b4d8d9f AG |
456 | for (ring = 0; ring < priv->rx_ring_num; ring++) { |
457 | spin_lock_bh(&priv->stats_lock); | |
458 | rx_packets = priv->rx_ring[ring].packets; | |
459 | rx_bytes = priv->rx_ring[ring].bytes; | |
460 | spin_unlock_bh(&priv->stats_lock); | |
461 | ||
462 | rx_pkt_diff = ((unsigned long) (rx_packets - | |
463 | priv->last_moder_packets[ring])); | |
464 | packets = rx_pkt_diff; | |
465 | rate = packets * HZ / period; | |
466 | avg_pkt_size = packets ? ((unsigned long) (rx_bytes - | |
467 | priv->last_moder_bytes[ring])) / packets : 0; | |
468 | ||
469 | /* Apply auto-moderation only when packet rate | |
470 | * exceeds a rate that it matters */ | |
471 | if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) && | |
472 | avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) { | |
c27a02cd YP |
473 | if (rate < priv->pkt_rate_low) |
474 | moder_time = priv->rx_usecs_low; | |
475 | else if (rate > priv->pkt_rate_high) | |
476 | moder_time = priv->rx_usecs_high; | |
477 | else | |
478 | moder_time = (rate - priv->pkt_rate_low) * | |
479 | (priv->rx_usecs_high - priv->rx_usecs_low) / | |
480 | (priv->pkt_rate_high - priv->pkt_rate_low) + | |
481 | priv->rx_usecs_low; | |
6b4d8d9f AG |
482 | } else { |
483 | moder_time = priv->rx_usecs_low; | |
c27a02cd | 484 | } |
c27a02cd | 485 | |
6b4d8d9f AG |
486 | if (moder_time != priv->last_moder_time[ring]) { |
487 | priv->last_moder_time[ring] = moder_time; | |
488 | cq = &priv->rx_cq[ring]; | |
c27a02cd YP |
489 | cq->moder_time = moder_time; |
490 | err = mlx4_en_set_cq_moder(priv, cq); | |
6b4d8d9f AG |
491 | if (err) |
492 | en_err(priv, "Failed modifying moderation " | |
493 | "for cq:%d\n", ring); | |
c27a02cd | 494 | } |
6b4d8d9f AG |
495 | priv->last_moder_packets[ring] = rx_packets; |
496 | priv->last_moder_bytes[ring] = rx_bytes; | |
c27a02cd YP |
497 | } |
498 | ||
c27a02cd YP |
499 | priv->last_moder_jiffies = jiffies; |
500 | } | |
501 | ||
502 | static void mlx4_en_do_get_stats(struct work_struct *work) | |
503 | { | |
bf6aede7 | 504 | struct delayed_work *delay = to_delayed_work(work); |
c27a02cd YP |
505 | struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, |
506 | stats_task); | |
507 | struct mlx4_en_dev *mdev = priv->mdev; | |
508 | int err; | |
509 | ||
510 | err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0); | |
511 | if (err) | |
2381a55c | 512 | en_dbg(HW, priv, "Could not update stats\n"); |
c27a02cd YP |
513 | |
514 | mutex_lock(&mdev->state_lock); | |
515 | if (mdev->device_up) { | |
516 | if (priv->port_up) | |
517 | mlx4_en_auto_moderation(priv); | |
518 | ||
519 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); | |
520 | } | |
d7e1a487 YP |
521 | if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) { |
522 | queue_work(mdev->workqueue, &priv->mac_task); | |
523 | mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0; | |
524 | } | |
c27a02cd YP |
525 | mutex_unlock(&mdev->state_lock); |
526 | } | |
527 | ||
528 | static void mlx4_en_linkstate(struct work_struct *work) | |
529 | { | |
530 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
531 | linkstate_task); | |
532 | struct mlx4_en_dev *mdev = priv->mdev; | |
533 | int linkstate = priv->link_state; | |
534 | ||
535 | mutex_lock(&mdev->state_lock); | |
536 | /* If observable port state changed set carrier state and | |
537 | * report to system log */ | |
538 | if (priv->last_link_state != linkstate) { | |
539 | if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) { | |
e5cc44b2 | 540 | en_info(priv, "Link Down\n"); |
c27a02cd YP |
541 | netif_carrier_off(priv->dev); |
542 | } else { | |
e5cc44b2 | 543 | en_info(priv, "Link Up\n"); |
c27a02cd YP |
544 | netif_carrier_on(priv->dev); |
545 | } | |
546 | } | |
547 | priv->last_link_state = linkstate; | |
548 | mutex_unlock(&mdev->state_lock); | |
549 | } | |
550 | ||
551 | ||
18cc42a3 | 552 | int mlx4_en_start_port(struct net_device *dev) |
c27a02cd YP |
553 | { |
554 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
555 | struct mlx4_en_dev *mdev = priv->mdev; | |
556 | struct mlx4_en_cq *cq; | |
557 | struct mlx4_en_tx_ring *tx_ring; | |
c27a02cd YP |
558 | int rx_index = 0; |
559 | int tx_index = 0; | |
c27a02cd YP |
560 | int err = 0; |
561 | int i; | |
562 | int j; | |
1679200f | 563 | u8 mc_list[16] = {0}; |
c27a02cd YP |
564 | |
565 | if (priv->port_up) { | |
453a6082 | 566 | en_dbg(DRV, priv, "start port called while port already up\n"); |
c27a02cd YP |
567 | return 0; |
568 | } | |
569 | ||
570 | /* Calculate Rx buf size */ | |
571 | dev->mtu = min(dev->mtu, priv->max_mtu); | |
572 | mlx4_en_calc_rx_buf(dev); | |
453a6082 | 573 | en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size); |
38aab07c | 574 | |
c27a02cd | 575 | /* Configure rx cq's and rings */ |
38aab07c YP |
576 | err = mlx4_en_activate_rx_rings(priv); |
577 | if (err) { | |
453a6082 | 578 | en_err(priv, "Failed to activate RX rings\n"); |
38aab07c YP |
579 | return err; |
580 | } | |
c27a02cd YP |
581 | for (i = 0; i < priv->rx_ring_num; i++) { |
582 | cq = &priv->rx_cq[i]; | |
c27a02cd | 583 | |
76532d0c | 584 | err = mlx4_en_activate_cq(priv, cq, i); |
c27a02cd | 585 | if (err) { |
453a6082 | 586 | en_err(priv, "Failed activating Rx CQ\n"); |
a4233304 | 587 | goto cq_err; |
c27a02cd YP |
588 | } |
589 | for (j = 0; j < cq->size; j++) | |
590 | cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK; | |
591 | err = mlx4_en_set_cq_moder(priv, cq); | |
592 | if (err) { | |
453a6082 | 593 | en_err(priv, "Failed setting cq moderation parameters"); |
c27a02cd YP |
594 | mlx4_en_deactivate_cq(priv, cq); |
595 | goto cq_err; | |
596 | } | |
597 | mlx4_en_arm_cq(priv, cq); | |
38aab07c | 598 | priv->rx_ring[i].cqn = cq->mcq.cqn; |
c27a02cd YP |
599 | ++rx_index; |
600 | } | |
601 | ||
1679200f YP |
602 | /* Set port mac number */ |
603 | en_dbg(DRV, priv, "Setting mac for port %d\n", priv->port); | |
604 | err = mlx4_register_mac(mdev->dev, priv->port, | |
605 | priv->mac, &priv->base_qpn, 0); | |
606 | if (err) { | |
607 | en_err(priv, "Failed setting port mac\n"); | |
608 | goto cq_err; | |
609 | } | |
610 | mdev->mac_removed[priv->port] = 0; | |
611 | ||
c27a02cd YP |
612 | err = mlx4_en_config_rss_steer(priv); |
613 | if (err) { | |
453a6082 | 614 | en_err(priv, "Failed configuring rss steering\n"); |
1679200f | 615 | goto mac_err; |
c27a02cd YP |
616 | } |
617 | ||
618 | /* Configure tx cq's and rings */ | |
619 | for (i = 0; i < priv->tx_ring_num; i++) { | |
620 | /* Configure cq */ | |
621 | cq = &priv->tx_cq[i]; | |
76532d0c | 622 | err = mlx4_en_activate_cq(priv, cq, i); |
c27a02cd | 623 | if (err) { |
453a6082 | 624 | en_err(priv, "Failed allocating Tx CQ\n"); |
c27a02cd YP |
625 | goto tx_err; |
626 | } | |
627 | err = mlx4_en_set_cq_moder(priv, cq); | |
628 | if (err) { | |
453a6082 | 629 | en_err(priv, "Failed setting cq moderation parameters"); |
c27a02cd YP |
630 | mlx4_en_deactivate_cq(priv, cq); |
631 | goto tx_err; | |
632 | } | |
453a6082 | 633 | en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i); |
c27a02cd YP |
634 | cq->buf->wqe_index = cpu_to_be16(0xffff); |
635 | ||
636 | /* Configure ring */ | |
637 | tx_ring = &priv->tx_ring[i]; | |
9f519f68 | 638 | err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn); |
c27a02cd | 639 | if (err) { |
453a6082 | 640 | en_err(priv, "Failed allocating Tx ring\n"); |
c27a02cd YP |
641 | mlx4_en_deactivate_cq(priv, cq); |
642 | goto tx_err; | |
643 | } | |
644 | /* Set initial ownership of all Tx TXBBs to SW (1) */ | |
645 | for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE) | |
646 | *((u32 *) (tx_ring->buf + j)) = 0xffffffff; | |
647 | ++tx_index; | |
648 | } | |
649 | ||
650 | /* Configure port */ | |
651 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
652 | priv->rx_skb_size + ETH_FCS_LEN, | |
d53b93f2 YP |
653 | priv->prof->tx_pause, |
654 | priv->prof->tx_ppp, | |
655 | priv->prof->rx_pause, | |
656 | priv->prof->rx_ppp); | |
c27a02cd | 657 | if (err) { |
453a6082 YP |
658 | en_err(priv, "Failed setting port general configurations " |
659 | "for port %d, with error %d\n", priv->port, err); | |
c27a02cd YP |
660 | goto tx_err; |
661 | } | |
662 | /* Set default qp number */ | |
663 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); | |
664 | if (err) { | |
453a6082 | 665 | en_err(priv, "Failed setting default qp numbers\n"); |
c27a02cd YP |
666 | goto tx_err; |
667 | } | |
c27a02cd YP |
668 | |
669 | /* Init port */ | |
453a6082 | 670 | en_dbg(HW, priv, "Initializing port\n"); |
c27a02cd YP |
671 | err = mlx4_INIT_PORT(mdev->dev, priv->port); |
672 | if (err) { | |
453a6082 | 673 | en_err(priv, "Failed Initializing port\n"); |
1679200f | 674 | goto tx_err; |
c27a02cd YP |
675 | } |
676 | ||
1679200f YP |
677 | /* Attach rx QP to bradcast address */ |
678 | memset(&mc_list[10], 0xff, ETH_ALEN); | |
679 | mc_list[5] = priv->port; | |
680 | if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list, | |
681 | 0, MLX4_PROT_ETH)) | |
682 | mlx4_warn(mdev, "Failed Attaching Broadcast\n"); | |
683 | ||
b5845f98 HX |
684 | /* Must redo promiscuous mode setup. */ |
685 | priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC); | |
686 | ||
c27a02cd YP |
687 | /* Schedule multicast task to populate multicast list */ |
688 | queue_work(mdev->workqueue, &priv->mcast_task); | |
689 | ||
690 | priv->port_up = true; | |
a11faac7 | 691 | netif_tx_start_all_queues(dev); |
c27a02cd YP |
692 | return 0; |
693 | ||
c27a02cd YP |
694 | tx_err: |
695 | while (tx_index--) { | |
696 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]); | |
697 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]); | |
698 | } | |
699 | ||
700 | mlx4_en_release_rss_steer(priv); | |
1679200f YP |
701 | mac_err: |
702 | mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn); | |
c27a02cd YP |
703 | cq_err: |
704 | while (rx_index--) | |
705 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]); | |
38aab07c YP |
706 | for (i = 0; i < priv->rx_ring_num; i++) |
707 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
c27a02cd YP |
708 | |
709 | return err; /* need to close devices */ | |
710 | } | |
711 | ||
712 | ||
18cc42a3 | 713 | void mlx4_en_stop_port(struct net_device *dev) |
c27a02cd YP |
714 | { |
715 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
716 | struct mlx4_en_dev *mdev = priv->mdev; | |
717 | int i; | |
1679200f | 718 | u8 mc_list[16] = {0}; |
c27a02cd YP |
719 | |
720 | if (!priv->port_up) { | |
453a6082 | 721 | en_dbg(DRV, priv, "stop port called while port already down\n"); |
c27a02cd YP |
722 | return; |
723 | } | |
c27a02cd YP |
724 | |
725 | /* Synchronize with tx routine */ | |
726 | netif_tx_lock_bh(dev); | |
3c05f5ef | 727 | netif_tx_stop_all_queues(dev); |
c27a02cd YP |
728 | netif_tx_unlock_bh(dev); |
729 | ||
7c287380 | 730 | /* Set port as not active */ |
3c05f5ef | 731 | priv->port_up = false; |
c27a02cd | 732 | |
1679200f YP |
733 | /* Detach All multicasts */ |
734 | memset(&mc_list[10], 0xff, ETH_ALEN); | |
735 | mc_list[5] = priv->port; | |
736 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list, | |
737 | MLX4_PROT_ETH); | |
738 | for (i = 0; i < priv->mc_addrs_cnt; i++) { | |
739 | memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); | |
740 | mc_list[5] = priv->port; | |
741 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, | |
742 | mc_list, MLX4_PROT_ETH); | |
743 | } | |
744 | mlx4_en_clear_list(dev); | |
745 | /* Flush multicast filter */ | |
746 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); | |
747 | ||
c27a02cd | 748 | /* Unregister Mac address for the port */ |
1679200f | 749 | mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn); |
d7e1a487 | 750 | mdev->mac_removed[priv->port] = 1; |
c27a02cd YP |
751 | |
752 | /* Free TX Rings */ | |
753 | for (i = 0; i < priv->tx_ring_num; i++) { | |
754 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]); | |
755 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]); | |
756 | } | |
757 | msleep(10); | |
758 | ||
759 | for (i = 0; i < priv->tx_ring_num; i++) | |
760 | mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]); | |
761 | ||
762 | /* Free RSS qps */ | |
763 | mlx4_en_release_rss_steer(priv); | |
764 | ||
765 | /* Free RX Rings */ | |
766 | for (i = 0; i < priv->rx_ring_num; i++) { | |
767 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
768 | while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state)) | |
769 | msleep(1); | |
770 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]); | |
771 | } | |
7c287380 YP |
772 | |
773 | /* close port*/ | |
774 | mlx4_CLOSE_PORT(mdev->dev, priv->port); | |
c27a02cd YP |
775 | } |
776 | ||
777 | static void mlx4_en_restart(struct work_struct *work) | |
778 | { | |
779 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
780 | watchdog_task); | |
781 | struct mlx4_en_dev *mdev = priv->mdev; | |
782 | struct net_device *dev = priv->dev; | |
783 | ||
453a6082 | 784 | en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port); |
1e338db5 YP |
785 | |
786 | mutex_lock(&mdev->state_lock); | |
787 | if (priv->port_up) { | |
788 | mlx4_en_stop_port(dev); | |
789 | if (mlx4_en_start_port(dev)) | |
453a6082 | 790 | en_err(priv, "Failed restarting port %d\n", priv->port); |
1e338db5 YP |
791 | } |
792 | mutex_unlock(&mdev->state_lock); | |
c27a02cd YP |
793 | } |
794 | ||
795 | ||
796 | static int mlx4_en_open(struct net_device *dev) | |
797 | { | |
798 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
799 | struct mlx4_en_dev *mdev = priv->mdev; | |
800 | int i; | |
801 | int err = 0; | |
802 | ||
803 | mutex_lock(&mdev->state_lock); | |
804 | ||
805 | if (!mdev->device_up) { | |
453a6082 | 806 | en_err(priv, "Cannot open - device down/disabled\n"); |
c27a02cd YP |
807 | err = -EBUSY; |
808 | goto out; | |
809 | } | |
810 | ||
811 | /* Reset HW statistics and performance counters */ | |
812 | if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) | |
453a6082 | 813 | en_dbg(HW, priv, "Failed dumping statistics\n"); |
c27a02cd YP |
814 | |
815 | memset(&priv->stats, 0, sizeof(priv->stats)); | |
816 | memset(&priv->pstats, 0, sizeof(priv->pstats)); | |
817 | ||
818 | for (i = 0; i < priv->tx_ring_num; i++) { | |
819 | priv->tx_ring[i].bytes = 0; | |
820 | priv->tx_ring[i].packets = 0; | |
821 | } | |
822 | for (i = 0; i < priv->rx_ring_num; i++) { | |
823 | priv->rx_ring[i].bytes = 0; | |
824 | priv->rx_ring[i].packets = 0; | |
825 | } | |
826 | ||
c27a02cd YP |
827 | err = mlx4_en_start_port(dev); |
828 | if (err) | |
453a6082 | 829 | en_err(priv, "Failed starting port:%d\n", priv->port); |
c27a02cd YP |
830 | |
831 | out: | |
832 | mutex_unlock(&mdev->state_lock); | |
833 | return err; | |
834 | } | |
835 | ||
836 | ||
837 | static int mlx4_en_close(struct net_device *dev) | |
838 | { | |
839 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
840 | struct mlx4_en_dev *mdev = priv->mdev; | |
841 | ||
453a6082 | 842 | en_dbg(IFDOWN, priv, "Close port called\n"); |
c27a02cd YP |
843 | |
844 | mutex_lock(&mdev->state_lock); | |
845 | ||
846 | mlx4_en_stop_port(dev); | |
847 | netif_carrier_off(dev); | |
848 | ||
849 | mutex_unlock(&mdev->state_lock); | |
850 | return 0; | |
851 | } | |
852 | ||
fe0af03c | 853 | void mlx4_en_free_resources(struct mlx4_en_priv *priv) |
c27a02cd YP |
854 | { |
855 | int i; | |
856 | ||
857 | for (i = 0; i < priv->tx_ring_num; i++) { | |
858 | if (priv->tx_ring[i].tx_info) | |
859 | mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); | |
860 | if (priv->tx_cq[i].buf) | |
fe0af03c | 861 | mlx4_en_destroy_cq(priv, &priv->tx_cq[i]); |
c27a02cd YP |
862 | } |
863 | ||
864 | for (i = 0; i < priv->rx_ring_num; i++) { | |
865 | if (priv->rx_ring[i].rx_info) | |
866 | mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]); | |
867 | if (priv->rx_cq[i].buf) | |
fe0af03c | 868 | mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); |
c27a02cd YP |
869 | } |
870 | } | |
871 | ||
18cc42a3 | 872 | int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) |
c27a02cd | 873 | { |
c27a02cd YP |
874 | struct mlx4_en_port_profile *prof = priv->prof; |
875 | int i; | |
87a5c389 YP |
876 | int base_tx_qpn, err; |
877 | ||
878 | err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &base_tx_qpn); | |
879 | if (err) { | |
880 | en_err(priv, "failed reserving range for TX rings\n"); | |
881 | return err; | |
882 | } | |
c27a02cd YP |
883 | |
884 | /* Create tx Rings */ | |
885 | for (i = 0; i < priv->tx_ring_num; i++) { | |
886 | if (mlx4_en_create_cq(priv, &priv->tx_cq[i], | |
887 | prof->tx_ring_size, i, TX)) | |
888 | goto err; | |
889 | ||
87a5c389 | 890 | if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], base_tx_qpn + i, |
c27a02cd YP |
891 | prof->tx_ring_size, TXBB_SIZE)) |
892 | goto err; | |
893 | } | |
894 | ||
895 | /* Create rx Rings */ | |
896 | for (i = 0; i < priv->rx_ring_num; i++) { | |
897 | if (mlx4_en_create_cq(priv, &priv->rx_cq[i], | |
898 | prof->rx_ring_size, i, RX)) | |
899 | goto err; | |
900 | ||
901 | if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i], | |
902 | prof->rx_ring_size, priv->stride)) | |
903 | goto err; | |
904 | } | |
905 | ||
906 | return 0; | |
907 | ||
908 | err: | |
453a6082 | 909 | en_err(priv, "Failed to allocate NIC resources\n"); |
87a5c389 | 910 | mlx4_qp_release_range(priv->mdev->dev, base_tx_qpn, priv->tx_ring_num); |
c27a02cd YP |
911 | return -ENOMEM; |
912 | } | |
913 | ||
914 | ||
915 | void mlx4_en_destroy_netdev(struct net_device *dev) | |
916 | { | |
917 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
918 | struct mlx4_en_dev *mdev = priv->mdev; | |
919 | ||
453a6082 | 920 | en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port); |
c27a02cd YP |
921 | |
922 | /* Unregister device - this will close the port if it was up */ | |
923 | if (priv->registered) | |
924 | unregister_netdev(dev); | |
925 | ||
926 | if (priv->allocated) | |
927 | mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); | |
928 | ||
929 | cancel_delayed_work(&priv->stats_task); | |
c27a02cd YP |
930 | /* flush any pending task for this netdev */ |
931 | flush_workqueue(mdev->workqueue); | |
932 | ||
933 | /* Detach the netdev so tasks would not attempt to access it */ | |
934 | mutex_lock(&mdev->state_lock); | |
935 | mdev->pndev[priv->port] = NULL; | |
936 | mutex_unlock(&mdev->state_lock); | |
937 | ||
fe0af03c | 938 | mlx4_en_free_resources(priv); |
c27a02cd YP |
939 | free_netdev(dev); |
940 | } | |
941 | ||
942 | static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) | |
943 | { | |
944 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
945 | struct mlx4_en_dev *mdev = priv->mdev; | |
946 | int err = 0; | |
947 | ||
453a6082 | 948 | en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n", |
c27a02cd YP |
949 | dev->mtu, new_mtu); |
950 | ||
951 | if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) { | |
453a6082 | 952 | en_err(priv, "Bad MTU size:%d.\n", new_mtu); |
c27a02cd YP |
953 | return -EPERM; |
954 | } | |
955 | dev->mtu = new_mtu; | |
956 | ||
957 | if (netif_running(dev)) { | |
958 | mutex_lock(&mdev->state_lock); | |
959 | if (!mdev->device_up) { | |
960 | /* NIC is probably restarting - let watchdog task reset | |
961 | * the port */ | |
453a6082 | 962 | en_dbg(DRV, priv, "Change MTU called with card down!?\n"); |
c27a02cd YP |
963 | } else { |
964 | mlx4_en_stop_port(dev); | |
c27a02cd YP |
965 | err = mlx4_en_start_port(dev); |
966 | if (err) { | |
453a6082 | 967 | en_err(priv, "Failed restarting port:%d\n", |
c27a02cd YP |
968 | priv->port); |
969 | queue_work(mdev->workqueue, &priv->watchdog_task); | |
970 | } | |
971 | } | |
972 | mutex_unlock(&mdev->state_lock); | |
973 | } | |
974 | return 0; | |
975 | } | |
976 | ||
3addc568 SH |
977 | static const struct net_device_ops mlx4_netdev_ops = { |
978 | .ndo_open = mlx4_en_open, | |
979 | .ndo_stop = mlx4_en_close, | |
980 | .ndo_start_xmit = mlx4_en_xmit, | |
f813cad8 | 981 | .ndo_select_queue = mlx4_en_select_queue, |
3addc568 | 982 | .ndo_get_stats = mlx4_en_get_stats, |
afc4b13d | 983 | .ndo_set_rx_mode = mlx4_en_set_multicast, |
3addc568 | 984 | .ndo_set_mac_address = mlx4_en_set_mac, |
52255bbe | 985 | .ndo_validate_addr = eth_validate_addr, |
3addc568 SH |
986 | .ndo_change_mtu = mlx4_en_change_mtu, |
987 | .ndo_tx_timeout = mlx4_en_tx_timeout, | |
3addc568 SH |
988 | .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, |
989 | .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, | |
990 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
991 | .ndo_poll_controller = mlx4_en_netpoll, | |
992 | #endif | |
993 | }; | |
994 | ||
c27a02cd YP |
995 | int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, |
996 | struct mlx4_en_port_profile *prof) | |
997 | { | |
998 | struct net_device *dev; | |
999 | struct mlx4_en_priv *priv; | |
1000 | int i; | |
1001 | int err; | |
1002 | ||
f1593d22 TH |
1003 | dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv), |
1004 | prof->tx_ring_num, prof->rx_ring_num); | |
c27a02cd YP |
1005 | if (dev == NULL) { |
1006 | mlx4_err(mdev, "Net device allocation failed\n"); | |
1007 | return -ENOMEM; | |
1008 | } | |
1009 | ||
1010 | SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev); | |
741a00be | 1011 | dev->dev_id = port - 1; |
c27a02cd YP |
1012 | |
1013 | /* | |
1014 | * Initialize driver private data | |
1015 | */ | |
1016 | ||
1017 | priv = netdev_priv(dev); | |
1018 | memset(priv, 0, sizeof(struct mlx4_en_priv)); | |
1019 | priv->dev = dev; | |
1020 | priv->mdev = mdev; | |
1021 | priv->prof = prof; | |
1022 | priv->port = port; | |
1023 | priv->port_up = false; | |
c27a02cd YP |
1024 | priv->flags = prof->flags; |
1025 | priv->tx_ring_num = prof->tx_ring_num; | |
1026 | priv->rx_ring_num = prof->rx_ring_num; | |
c27a02cd YP |
1027 | priv->mac_index = -1; |
1028 | priv->msg_enable = MLX4_EN_MSG_LEVEL; | |
1029 | spin_lock_init(&priv->stats_lock); | |
1030 | INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast); | |
1031 | INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac); | |
c27a02cd YP |
1032 | INIT_WORK(&priv->watchdog_task, mlx4_en_restart); |
1033 | INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate); | |
1034 | INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats); | |
1035 | ||
1036 | /* Query for default mac and max mtu */ | |
1037 | priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; | |
1038 | priv->mac = mdev->dev->caps.def_mac[priv->port]; | |
1039 | if (ILLEGAL_MAC(priv->mac)) { | |
453a6082 | 1040 | en_err(priv, "Port: %d, invalid mac burned: 0x%llx, quiting\n", |
c27a02cd YP |
1041 | priv->port, priv->mac); |
1042 | err = -EINVAL; | |
1043 | goto out; | |
1044 | } | |
1045 | ||
1046 | priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + | |
1047 | DS_SIZE * MLX4_EN_MAX_RX_FRAGS); | |
1048 | err = mlx4_en_alloc_resources(priv); | |
1049 | if (err) | |
1050 | goto out; | |
1051 | ||
c27a02cd YP |
1052 | /* Allocate page for receive rings */ |
1053 | err = mlx4_alloc_hwq_res(mdev->dev, &priv->res, | |
1054 | MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE); | |
1055 | if (err) { | |
453a6082 | 1056 | en_err(priv, "Failed to allocate page for rx qps\n"); |
c27a02cd YP |
1057 | goto out; |
1058 | } | |
1059 | priv->allocated = 1; | |
1060 | ||
c27a02cd YP |
1061 | /* |
1062 | * Initialize netdev entry points | |
1063 | */ | |
3addc568 | 1064 | dev->netdev_ops = &mlx4_netdev_ops; |
c27a02cd | 1065 | dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT; |
1eb63a28 BH |
1066 | netif_set_real_num_tx_queues(dev, priv->tx_ring_num); |
1067 | netif_set_real_num_rx_queues(dev, priv->rx_ring_num); | |
3addc568 | 1068 | |
c27a02cd YP |
1069 | SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops); |
1070 | ||
1071 | /* Set defualt MAC */ | |
1072 | dev->addr_len = ETH_ALEN; | |
8bf2e58f YP |
1073 | for (i = 0; i < ETH_ALEN; i++) { |
1074 | dev->dev_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); | |
1075 | dev->perm_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); | |
1076 | } | |
c27a02cd YP |
1077 | |
1078 | /* | |
1079 | * Set driver features | |
1080 | */ | |
c8c64cff MM |
1081 | dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
1082 | if (mdev->LSO_support) | |
1083 | dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6; | |
1084 | ||
1085 | dev->vlan_features = dev->hw_features; | |
1086 | ||
1087 | dev->hw_features |= NETIF_F_RXCSUM; | |
1088 | dev->features = dev->hw_features | NETIF_F_HIGHDMA | | |
1089 | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | | |
1090 | NETIF_F_HW_VLAN_FILTER; | |
c27a02cd YP |
1091 | |
1092 | mdev->pndev[port] = dev; | |
1093 | ||
1094 | netif_carrier_off(dev); | |
1095 | err = register_netdev(dev); | |
1096 | if (err) { | |
453a6082 | 1097 | en_err(priv, "Netdev registration failed for port %d\n", port); |
c27a02cd YP |
1098 | goto out; |
1099 | } | |
453a6082 YP |
1100 | |
1101 | en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num); | |
1102 | en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); | |
1103 | ||
90822265 YP |
1104 | /* Configure port */ |
1105 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
1106 | MLX4_EN_MIN_MTU, | |
1107 | 0, 0, 0, 0); | |
1108 | if (err) { | |
1109 | en_err(priv, "Failed setting port general configurations " | |
1110 | "for port %d, with error %d\n", priv->port, err); | |
1111 | goto out; | |
1112 | } | |
1113 | ||
1114 | /* Init port */ | |
1115 | en_warn(priv, "Initializing port\n"); | |
1116 | err = mlx4_INIT_PORT(mdev->dev, priv->port); | |
1117 | if (err) { | |
1118 | en_err(priv, "Failed Initializing port\n"); | |
1119 | goto out; | |
1120 | } | |
c27a02cd | 1121 | priv->registered = 1; |
39f17b44 | 1122 | mlx4_en_set_default_moderation(priv); |
c27a02cd YP |
1123 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); |
1124 | return 0; | |
1125 | ||
1126 | out: | |
1127 | mlx4_en_destroy_netdev(dev); | |
1128 | return err; | |
1129 | } | |
1130 |