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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 | ||
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; | |
418 | } | |
419 | ||
420 | for (i = 0; i < priv->tx_ring_num; i++) { | |
421 | cq = &priv->tx_cq[i]; | |
422 | cq->moder_cnt = MLX4_EN_TX_COAL_PKTS; | |
423 | cq->moder_time = MLX4_EN_TX_COAL_TIME; | |
424 | } | |
425 | ||
426 | /* Reset auto-moderation params */ | |
427 | priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW; | |
428 | priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW; | |
429 | priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH; | |
430 | priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH; | |
431 | priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL; | |
60b9f9e5 | 432 | priv->adaptive_rx_coal = 1; |
c27a02cd YP |
433 | priv->last_moder_time = MLX4_EN_AUTO_CONF; |
434 | priv->last_moder_jiffies = 0; | |
435 | priv->last_moder_packets = 0; | |
436 | priv->last_moder_tx_packets = 0; | |
437 | priv->last_moder_bytes = 0; | |
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; | |
449 | unsigned long tx_packets; | |
450 | unsigned long tx_pkt_diff; | |
451 | unsigned long rx_pkt_diff; | |
452 | int moder_time; | |
453 | int i, err; | |
454 | ||
455 | if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ) | |
456 | return; | |
457 | ||
458 | spin_lock_bh(&priv->stats_lock); | |
459 | rx_packets = priv->stats.rx_packets; | |
460 | rx_bytes = priv->stats.rx_bytes; | |
461 | tx_packets = priv->stats.tx_packets; | |
462 | spin_unlock_bh(&priv->stats_lock); | |
463 | ||
464 | if (!priv->last_moder_jiffies || !period) | |
465 | goto out; | |
466 | ||
467 | tx_pkt_diff = ((unsigned long) (tx_packets - | |
468 | priv->last_moder_tx_packets)); | |
469 | rx_pkt_diff = ((unsigned long) (rx_packets - | |
470 | priv->last_moder_packets)); | |
471 | packets = max(tx_pkt_diff, rx_pkt_diff); | |
472 | rate = packets * HZ / period; | |
473 | avg_pkt_size = packets ? ((unsigned long) (rx_bytes - | |
474 | priv->last_moder_bytes)) / packets : 0; | |
475 | ||
476 | /* Apply auto-moderation only when packet rate exceeds a rate that | |
477 | * it matters */ | |
46afd0fb | 478 | if (rate > MLX4_EN_RX_RATE_THRESH && avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) { |
c27a02cd YP |
479 | /* If tx and rx packet rates are not balanced, assume that |
480 | * traffic is mainly BW bound and apply maximum moderation. | |
481 | * Otherwise, moderate according to packet rate */ | |
46afd0fb YP |
482 | if (2 * tx_pkt_diff > 3 * rx_pkt_diff || |
483 | 2 * rx_pkt_diff > 3 * tx_pkt_diff) { | |
c27a02cd | 484 | moder_time = priv->rx_usecs_high; |
46afd0fb | 485 | } else { |
c27a02cd YP |
486 | if (rate < priv->pkt_rate_low) |
487 | moder_time = priv->rx_usecs_low; | |
488 | else if (rate > priv->pkt_rate_high) | |
489 | moder_time = priv->rx_usecs_high; | |
490 | else | |
491 | moder_time = (rate - priv->pkt_rate_low) * | |
492 | (priv->rx_usecs_high - priv->rx_usecs_low) / | |
493 | (priv->pkt_rate_high - priv->pkt_rate_low) + | |
494 | priv->rx_usecs_low; | |
495 | } | |
496 | } else { | |
46afd0fb | 497 | moder_time = priv->rx_usecs_low; |
c27a02cd YP |
498 | } |
499 | ||
453a6082 YP |
500 | en_dbg(INTR, priv, "tx rate:%lu rx_rate:%lu\n", |
501 | tx_pkt_diff * HZ / period, rx_pkt_diff * HZ / period); | |
c27a02cd | 502 | |
453a6082 YP |
503 | en_dbg(INTR, priv, "Rx moder_time changed from:%d to %d period:%lu " |
504 | "[jiff] packets:%lu avg_pkt_size:%lu rate:%lu [p/s])\n", | |
c27a02cd YP |
505 | priv->last_moder_time, moder_time, period, packets, |
506 | avg_pkt_size, rate); | |
507 | ||
508 | if (moder_time != priv->last_moder_time) { | |
509 | priv->last_moder_time = moder_time; | |
510 | for (i = 0; i < priv->rx_ring_num; i++) { | |
511 | cq = &priv->rx_cq[i]; | |
512 | cq->moder_time = moder_time; | |
513 | err = mlx4_en_set_cq_moder(priv, cq); | |
514 | if (err) { | |
453a6082 | 515 | en_err(priv, "Failed modifying moderation for cq:%d\n", i); |
c27a02cd YP |
516 | break; |
517 | } | |
518 | } | |
519 | } | |
520 | ||
521 | out: | |
522 | priv->last_moder_packets = rx_packets; | |
523 | priv->last_moder_tx_packets = tx_packets; | |
524 | priv->last_moder_bytes = rx_bytes; | |
525 | priv->last_moder_jiffies = jiffies; | |
526 | } | |
527 | ||
528 | static void mlx4_en_do_get_stats(struct work_struct *work) | |
529 | { | |
bf6aede7 | 530 | struct delayed_work *delay = to_delayed_work(work); |
c27a02cd YP |
531 | struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, |
532 | stats_task); | |
533 | struct mlx4_en_dev *mdev = priv->mdev; | |
534 | int err; | |
535 | ||
536 | err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0); | |
537 | if (err) | |
2381a55c | 538 | en_dbg(HW, priv, "Could not update stats\n"); |
c27a02cd YP |
539 | |
540 | mutex_lock(&mdev->state_lock); | |
541 | if (mdev->device_up) { | |
542 | if (priv->port_up) | |
543 | mlx4_en_auto_moderation(priv); | |
544 | ||
545 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); | |
546 | } | |
d7e1a487 YP |
547 | if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) { |
548 | queue_work(mdev->workqueue, &priv->mac_task); | |
549 | mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0; | |
550 | } | |
c27a02cd YP |
551 | mutex_unlock(&mdev->state_lock); |
552 | } | |
553 | ||
554 | static void mlx4_en_linkstate(struct work_struct *work) | |
555 | { | |
556 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
557 | linkstate_task); | |
558 | struct mlx4_en_dev *mdev = priv->mdev; | |
559 | int linkstate = priv->link_state; | |
560 | ||
561 | mutex_lock(&mdev->state_lock); | |
562 | /* If observable port state changed set carrier state and | |
563 | * report to system log */ | |
564 | if (priv->last_link_state != linkstate) { | |
565 | if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) { | |
e5cc44b2 | 566 | en_info(priv, "Link Down\n"); |
c27a02cd YP |
567 | netif_carrier_off(priv->dev); |
568 | } else { | |
e5cc44b2 | 569 | en_info(priv, "Link Up\n"); |
c27a02cd YP |
570 | netif_carrier_on(priv->dev); |
571 | } | |
572 | } | |
573 | priv->last_link_state = linkstate; | |
574 | mutex_unlock(&mdev->state_lock); | |
575 | } | |
576 | ||
577 | ||
18cc42a3 | 578 | int mlx4_en_start_port(struct net_device *dev) |
c27a02cd YP |
579 | { |
580 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
581 | struct mlx4_en_dev *mdev = priv->mdev; | |
582 | struct mlx4_en_cq *cq; | |
583 | struct mlx4_en_tx_ring *tx_ring; | |
c27a02cd YP |
584 | int rx_index = 0; |
585 | int tx_index = 0; | |
c27a02cd YP |
586 | int err = 0; |
587 | int i; | |
588 | int j; | |
1679200f | 589 | u8 mc_list[16] = {0}; |
c27a02cd YP |
590 | |
591 | if (priv->port_up) { | |
453a6082 | 592 | en_dbg(DRV, priv, "start port called while port already up\n"); |
c27a02cd YP |
593 | return 0; |
594 | } | |
595 | ||
596 | /* Calculate Rx buf size */ | |
597 | dev->mtu = min(dev->mtu, priv->max_mtu); | |
598 | mlx4_en_calc_rx_buf(dev); | |
453a6082 | 599 | en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size); |
38aab07c | 600 | |
c27a02cd | 601 | /* Configure rx cq's and rings */ |
38aab07c YP |
602 | err = mlx4_en_activate_rx_rings(priv); |
603 | if (err) { | |
453a6082 | 604 | en_err(priv, "Failed to activate RX rings\n"); |
38aab07c YP |
605 | return err; |
606 | } | |
c27a02cd YP |
607 | for (i = 0; i < priv->rx_ring_num; i++) { |
608 | cq = &priv->rx_cq[i]; | |
c27a02cd | 609 | |
76532d0c | 610 | err = mlx4_en_activate_cq(priv, cq, i); |
c27a02cd | 611 | if (err) { |
453a6082 | 612 | en_err(priv, "Failed activating Rx CQ\n"); |
a4233304 | 613 | goto cq_err; |
c27a02cd YP |
614 | } |
615 | for (j = 0; j < cq->size; j++) | |
616 | cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK; | |
617 | err = mlx4_en_set_cq_moder(priv, cq); | |
618 | if (err) { | |
453a6082 | 619 | en_err(priv, "Failed setting cq moderation parameters"); |
c27a02cd YP |
620 | mlx4_en_deactivate_cq(priv, cq); |
621 | goto cq_err; | |
622 | } | |
623 | mlx4_en_arm_cq(priv, cq); | |
38aab07c | 624 | priv->rx_ring[i].cqn = cq->mcq.cqn; |
c27a02cd YP |
625 | ++rx_index; |
626 | } | |
627 | ||
1679200f YP |
628 | /* Set port mac number */ |
629 | en_dbg(DRV, priv, "Setting mac for port %d\n", priv->port); | |
630 | err = mlx4_register_mac(mdev->dev, priv->port, | |
631 | priv->mac, &priv->base_qpn, 0); | |
632 | if (err) { | |
633 | en_err(priv, "Failed setting port mac\n"); | |
634 | goto cq_err; | |
635 | } | |
636 | mdev->mac_removed[priv->port] = 0; | |
637 | ||
c27a02cd YP |
638 | err = mlx4_en_config_rss_steer(priv); |
639 | if (err) { | |
453a6082 | 640 | en_err(priv, "Failed configuring rss steering\n"); |
1679200f | 641 | goto mac_err; |
c27a02cd YP |
642 | } |
643 | ||
644 | /* Configure tx cq's and rings */ | |
645 | for (i = 0; i < priv->tx_ring_num; i++) { | |
646 | /* Configure cq */ | |
647 | cq = &priv->tx_cq[i]; | |
76532d0c | 648 | err = mlx4_en_activate_cq(priv, cq, i); |
c27a02cd | 649 | if (err) { |
453a6082 | 650 | en_err(priv, "Failed allocating Tx CQ\n"); |
c27a02cd YP |
651 | goto tx_err; |
652 | } | |
653 | err = mlx4_en_set_cq_moder(priv, cq); | |
654 | if (err) { | |
453a6082 | 655 | en_err(priv, "Failed setting cq moderation parameters"); |
c27a02cd YP |
656 | mlx4_en_deactivate_cq(priv, cq); |
657 | goto tx_err; | |
658 | } | |
453a6082 | 659 | en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i); |
c27a02cd YP |
660 | cq->buf->wqe_index = cpu_to_be16(0xffff); |
661 | ||
662 | /* Configure ring */ | |
663 | tx_ring = &priv->tx_ring[i]; | |
9f519f68 | 664 | err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn); |
c27a02cd | 665 | if (err) { |
453a6082 | 666 | en_err(priv, "Failed allocating Tx ring\n"); |
c27a02cd YP |
667 | mlx4_en_deactivate_cq(priv, cq); |
668 | goto tx_err; | |
669 | } | |
670 | /* Set initial ownership of all Tx TXBBs to SW (1) */ | |
671 | for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE) | |
672 | *((u32 *) (tx_ring->buf + j)) = 0xffffffff; | |
673 | ++tx_index; | |
674 | } | |
675 | ||
676 | /* Configure port */ | |
677 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
678 | priv->rx_skb_size + ETH_FCS_LEN, | |
d53b93f2 YP |
679 | priv->prof->tx_pause, |
680 | priv->prof->tx_ppp, | |
681 | priv->prof->rx_pause, | |
682 | priv->prof->rx_ppp); | |
c27a02cd | 683 | if (err) { |
453a6082 YP |
684 | en_err(priv, "Failed setting port general configurations " |
685 | "for port %d, with error %d\n", priv->port, err); | |
c27a02cd YP |
686 | goto tx_err; |
687 | } | |
688 | /* Set default qp number */ | |
689 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); | |
690 | if (err) { | |
453a6082 | 691 | en_err(priv, "Failed setting default qp numbers\n"); |
c27a02cd YP |
692 | goto tx_err; |
693 | } | |
c27a02cd YP |
694 | |
695 | /* Init port */ | |
453a6082 | 696 | en_dbg(HW, priv, "Initializing port\n"); |
c27a02cd YP |
697 | err = mlx4_INIT_PORT(mdev->dev, priv->port); |
698 | if (err) { | |
453a6082 | 699 | en_err(priv, "Failed Initializing port\n"); |
1679200f | 700 | goto tx_err; |
c27a02cd YP |
701 | } |
702 | ||
1679200f YP |
703 | /* Attach rx QP to bradcast address */ |
704 | memset(&mc_list[10], 0xff, ETH_ALEN); | |
705 | mc_list[5] = priv->port; | |
706 | if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list, | |
707 | 0, MLX4_PROT_ETH)) | |
708 | mlx4_warn(mdev, "Failed Attaching Broadcast\n"); | |
709 | ||
b5845f98 HX |
710 | /* Must redo promiscuous mode setup. */ |
711 | priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC); | |
712 | ||
c27a02cd YP |
713 | /* Schedule multicast task to populate multicast list */ |
714 | queue_work(mdev->workqueue, &priv->mcast_task); | |
715 | ||
716 | priv->port_up = true; | |
a11faac7 | 717 | netif_tx_start_all_queues(dev); |
c27a02cd YP |
718 | return 0; |
719 | ||
c27a02cd YP |
720 | tx_err: |
721 | while (tx_index--) { | |
722 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]); | |
723 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]); | |
724 | } | |
725 | ||
726 | mlx4_en_release_rss_steer(priv); | |
1679200f YP |
727 | mac_err: |
728 | mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn); | |
c27a02cd YP |
729 | cq_err: |
730 | while (rx_index--) | |
731 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]); | |
38aab07c YP |
732 | for (i = 0; i < priv->rx_ring_num; i++) |
733 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
c27a02cd YP |
734 | |
735 | return err; /* need to close devices */ | |
736 | } | |
737 | ||
738 | ||
18cc42a3 | 739 | void mlx4_en_stop_port(struct net_device *dev) |
c27a02cd YP |
740 | { |
741 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
742 | struct mlx4_en_dev *mdev = priv->mdev; | |
743 | int i; | |
1679200f | 744 | u8 mc_list[16] = {0}; |
c27a02cd YP |
745 | |
746 | if (!priv->port_up) { | |
453a6082 | 747 | en_dbg(DRV, priv, "stop port called while port already down\n"); |
c27a02cd YP |
748 | return; |
749 | } | |
c27a02cd YP |
750 | |
751 | /* Synchronize with tx routine */ | |
752 | netif_tx_lock_bh(dev); | |
3c05f5ef | 753 | netif_tx_stop_all_queues(dev); |
c27a02cd YP |
754 | netif_tx_unlock_bh(dev); |
755 | ||
7c287380 | 756 | /* Set port as not active */ |
3c05f5ef | 757 | priv->port_up = false; |
c27a02cd | 758 | |
1679200f YP |
759 | /* Detach All multicasts */ |
760 | memset(&mc_list[10], 0xff, ETH_ALEN); | |
761 | mc_list[5] = priv->port; | |
762 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list, | |
763 | MLX4_PROT_ETH); | |
764 | for (i = 0; i < priv->mc_addrs_cnt; i++) { | |
765 | memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); | |
766 | mc_list[5] = priv->port; | |
767 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, | |
768 | mc_list, MLX4_PROT_ETH); | |
769 | } | |
770 | mlx4_en_clear_list(dev); | |
771 | /* Flush multicast filter */ | |
772 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); | |
773 | ||
c27a02cd | 774 | /* Unregister Mac address for the port */ |
1679200f | 775 | mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn); |
d7e1a487 | 776 | mdev->mac_removed[priv->port] = 1; |
c27a02cd YP |
777 | |
778 | /* Free TX Rings */ | |
779 | for (i = 0; i < priv->tx_ring_num; i++) { | |
780 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]); | |
781 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]); | |
782 | } | |
783 | msleep(10); | |
784 | ||
785 | for (i = 0; i < priv->tx_ring_num; i++) | |
786 | mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]); | |
787 | ||
788 | /* Free RSS qps */ | |
789 | mlx4_en_release_rss_steer(priv); | |
790 | ||
791 | /* Free RX Rings */ | |
792 | for (i = 0; i < priv->rx_ring_num; i++) { | |
793 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
794 | while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state)) | |
795 | msleep(1); | |
796 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]); | |
797 | } | |
7c287380 YP |
798 | |
799 | /* close port*/ | |
800 | mlx4_CLOSE_PORT(mdev->dev, priv->port); | |
c27a02cd YP |
801 | } |
802 | ||
803 | static void mlx4_en_restart(struct work_struct *work) | |
804 | { | |
805 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
806 | watchdog_task); | |
807 | struct mlx4_en_dev *mdev = priv->mdev; | |
808 | struct net_device *dev = priv->dev; | |
809 | ||
453a6082 | 810 | en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port); |
1e338db5 YP |
811 | |
812 | mutex_lock(&mdev->state_lock); | |
813 | if (priv->port_up) { | |
814 | mlx4_en_stop_port(dev); | |
815 | if (mlx4_en_start_port(dev)) | |
453a6082 | 816 | en_err(priv, "Failed restarting port %d\n", priv->port); |
1e338db5 YP |
817 | } |
818 | mutex_unlock(&mdev->state_lock); | |
c27a02cd YP |
819 | } |
820 | ||
821 | ||
822 | static int mlx4_en_open(struct net_device *dev) | |
823 | { | |
824 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
825 | struct mlx4_en_dev *mdev = priv->mdev; | |
826 | int i; | |
827 | int err = 0; | |
828 | ||
829 | mutex_lock(&mdev->state_lock); | |
830 | ||
831 | if (!mdev->device_up) { | |
453a6082 | 832 | en_err(priv, "Cannot open - device down/disabled\n"); |
c27a02cd YP |
833 | err = -EBUSY; |
834 | goto out; | |
835 | } | |
836 | ||
837 | /* Reset HW statistics and performance counters */ | |
838 | if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) | |
453a6082 | 839 | en_dbg(HW, priv, "Failed dumping statistics\n"); |
c27a02cd YP |
840 | |
841 | memset(&priv->stats, 0, sizeof(priv->stats)); | |
842 | memset(&priv->pstats, 0, sizeof(priv->pstats)); | |
843 | ||
844 | for (i = 0; i < priv->tx_ring_num; i++) { | |
845 | priv->tx_ring[i].bytes = 0; | |
846 | priv->tx_ring[i].packets = 0; | |
847 | } | |
848 | for (i = 0; i < priv->rx_ring_num; i++) { | |
849 | priv->rx_ring[i].bytes = 0; | |
850 | priv->rx_ring[i].packets = 0; | |
851 | } | |
852 | ||
c27a02cd YP |
853 | err = mlx4_en_start_port(dev); |
854 | if (err) | |
453a6082 | 855 | en_err(priv, "Failed starting port:%d\n", priv->port); |
c27a02cd YP |
856 | |
857 | out: | |
858 | mutex_unlock(&mdev->state_lock); | |
859 | return err; | |
860 | } | |
861 | ||
862 | ||
863 | static int mlx4_en_close(struct net_device *dev) | |
864 | { | |
865 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
866 | struct mlx4_en_dev *mdev = priv->mdev; | |
867 | ||
453a6082 | 868 | en_dbg(IFDOWN, priv, "Close port called\n"); |
c27a02cd YP |
869 | |
870 | mutex_lock(&mdev->state_lock); | |
871 | ||
872 | mlx4_en_stop_port(dev); | |
873 | netif_carrier_off(dev); | |
874 | ||
875 | mutex_unlock(&mdev->state_lock); | |
876 | return 0; | |
877 | } | |
878 | ||
1fb9876e | 879 | void mlx4_en_free_resources(struct mlx4_en_priv *priv, bool reserve_vectors) |
c27a02cd YP |
880 | { |
881 | int i; | |
882 | ||
883 | for (i = 0; i < priv->tx_ring_num; i++) { | |
884 | if (priv->tx_ring[i].tx_info) | |
885 | mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); | |
886 | if (priv->tx_cq[i].buf) | |
1fb9876e | 887 | mlx4_en_destroy_cq(priv, &priv->tx_cq[i], reserve_vectors); |
c27a02cd YP |
888 | } |
889 | ||
890 | for (i = 0; i < priv->rx_ring_num; i++) { | |
891 | if (priv->rx_ring[i].rx_info) | |
892 | mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]); | |
893 | if (priv->rx_cq[i].buf) | |
1fb9876e | 894 | mlx4_en_destroy_cq(priv, &priv->rx_cq[i], reserve_vectors); |
c27a02cd YP |
895 | } |
896 | } | |
897 | ||
18cc42a3 | 898 | int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) |
c27a02cd | 899 | { |
c27a02cd YP |
900 | struct mlx4_en_port_profile *prof = priv->prof; |
901 | int i; | |
87a5c389 YP |
902 | int base_tx_qpn, err; |
903 | ||
904 | err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &base_tx_qpn); | |
905 | if (err) { | |
906 | en_err(priv, "failed reserving range for TX rings\n"); | |
907 | return err; | |
908 | } | |
c27a02cd YP |
909 | |
910 | /* Create tx Rings */ | |
911 | for (i = 0; i < priv->tx_ring_num; i++) { | |
912 | if (mlx4_en_create_cq(priv, &priv->tx_cq[i], | |
913 | prof->tx_ring_size, i, TX)) | |
914 | goto err; | |
915 | ||
87a5c389 | 916 | if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], base_tx_qpn + i, |
c27a02cd YP |
917 | prof->tx_ring_size, TXBB_SIZE)) |
918 | goto err; | |
919 | } | |
920 | ||
921 | /* Create rx Rings */ | |
922 | for (i = 0; i < priv->rx_ring_num; i++) { | |
923 | if (mlx4_en_create_cq(priv, &priv->rx_cq[i], | |
924 | prof->rx_ring_size, i, RX)) | |
925 | goto err; | |
926 | ||
927 | if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i], | |
928 | prof->rx_ring_size, priv->stride)) | |
929 | goto err; | |
930 | } | |
931 | ||
932 | return 0; | |
933 | ||
934 | err: | |
453a6082 | 935 | en_err(priv, "Failed to allocate NIC resources\n"); |
87a5c389 | 936 | mlx4_qp_release_range(priv->mdev->dev, base_tx_qpn, priv->tx_ring_num); |
c27a02cd YP |
937 | return -ENOMEM; |
938 | } | |
939 | ||
940 | ||
941 | void mlx4_en_destroy_netdev(struct net_device *dev) | |
942 | { | |
943 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
944 | struct mlx4_en_dev *mdev = priv->mdev; | |
945 | ||
453a6082 | 946 | en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port); |
c27a02cd YP |
947 | |
948 | /* Unregister device - this will close the port if it was up */ | |
949 | if (priv->registered) | |
950 | unregister_netdev(dev); | |
951 | ||
952 | if (priv->allocated) | |
953 | mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); | |
954 | ||
955 | cancel_delayed_work(&priv->stats_task); | |
c27a02cd YP |
956 | /* flush any pending task for this netdev */ |
957 | flush_workqueue(mdev->workqueue); | |
958 | ||
959 | /* Detach the netdev so tasks would not attempt to access it */ | |
960 | mutex_lock(&mdev->state_lock); | |
961 | mdev->pndev[priv->port] = NULL; | |
962 | mutex_unlock(&mdev->state_lock); | |
963 | ||
1fb9876e | 964 | mlx4_en_free_resources(priv, false); |
c27a02cd YP |
965 | free_netdev(dev); |
966 | } | |
967 | ||
968 | static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) | |
969 | { | |
970 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
971 | struct mlx4_en_dev *mdev = priv->mdev; | |
972 | int err = 0; | |
973 | ||
453a6082 | 974 | en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n", |
c27a02cd YP |
975 | dev->mtu, new_mtu); |
976 | ||
977 | if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) { | |
453a6082 | 978 | en_err(priv, "Bad MTU size:%d.\n", new_mtu); |
c27a02cd YP |
979 | return -EPERM; |
980 | } | |
981 | dev->mtu = new_mtu; | |
982 | ||
983 | if (netif_running(dev)) { | |
984 | mutex_lock(&mdev->state_lock); | |
985 | if (!mdev->device_up) { | |
986 | /* NIC is probably restarting - let watchdog task reset | |
987 | * the port */ | |
453a6082 | 988 | en_dbg(DRV, priv, "Change MTU called with card down!?\n"); |
c27a02cd YP |
989 | } else { |
990 | mlx4_en_stop_port(dev); | |
c27a02cd YP |
991 | err = mlx4_en_start_port(dev); |
992 | if (err) { | |
453a6082 | 993 | en_err(priv, "Failed restarting port:%d\n", |
c27a02cd YP |
994 | priv->port); |
995 | queue_work(mdev->workqueue, &priv->watchdog_task); | |
996 | } | |
997 | } | |
998 | mutex_unlock(&mdev->state_lock); | |
999 | } | |
1000 | return 0; | |
1001 | } | |
1002 | ||
3addc568 SH |
1003 | static const struct net_device_ops mlx4_netdev_ops = { |
1004 | .ndo_open = mlx4_en_open, | |
1005 | .ndo_stop = mlx4_en_close, | |
1006 | .ndo_start_xmit = mlx4_en_xmit, | |
f813cad8 | 1007 | .ndo_select_queue = mlx4_en_select_queue, |
3addc568 | 1008 | .ndo_get_stats = mlx4_en_get_stats, |
afc4b13d | 1009 | .ndo_set_rx_mode = mlx4_en_set_multicast, |
3addc568 | 1010 | .ndo_set_mac_address = mlx4_en_set_mac, |
52255bbe | 1011 | .ndo_validate_addr = eth_validate_addr, |
3addc568 SH |
1012 | .ndo_change_mtu = mlx4_en_change_mtu, |
1013 | .ndo_tx_timeout = mlx4_en_tx_timeout, | |
3addc568 SH |
1014 | .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, |
1015 | .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, | |
1016 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1017 | .ndo_poll_controller = mlx4_en_netpoll, | |
1018 | #endif | |
1019 | }; | |
1020 | ||
c27a02cd YP |
1021 | int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, |
1022 | struct mlx4_en_port_profile *prof) | |
1023 | { | |
1024 | struct net_device *dev; | |
1025 | struct mlx4_en_priv *priv; | |
1026 | int i; | |
1027 | int err; | |
1028 | ||
f1593d22 TH |
1029 | dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv), |
1030 | prof->tx_ring_num, prof->rx_ring_num); | |
c27a02cd YP |
1031 | if (dev == NULL) { |
1032 | mlx4_err(mdev, "Net device allocation failed\n"); | |
1033 | return -ENOMEM; | |
1034 | } | |
1035 | ||
1036 | SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev); | |
741a00be | 1037 | dev->dev_id = port - 1; |
c27a02cd YP |
1038 | |
1039 | /* | |
1040 | * Initialize driver private data | |
1041 | */ | |
1042 | ||
1043 | priv = netdev_priv(dev); | |
1044 | memset(priv, 0, sizeof(struct mlx4_en_priv)); | |
1045 | priv->dev = dev; | |
1046 | priv->mdev = mdev; | |
1047 | priv->prof = prof; | |
1048 | priv->port = port; | |
1049 | priv->port_up = false; | |
c27a02cd YP |
1050 | priv->flags = prof->flags; |
1051 | priv->tx_ring_num = prof->tx_ring_num; | |
1052 | priv->rx_ring_num = prof->rx_ring_num; | |
c27a02cd YP |
1053 | priv->mac_index = -1; |
1054 | priv->msg_enable = MLX4_EN_MSG_LEVEL; | |
1055 | spin_lock_init(&priv->stats_lock); | |
1056 | INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast); | |
1057 | INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac); | |
c27a02cd YP |
1058 | INIT_WORK(&priv->watchdog_task, mlx4_en_restart); |
1059 | INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate); | |
1060 | INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats); | |
1061 | ||
1062 | /* Query for default mac and max mtu */ | |
1063 | priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; | |
1064 | priv->mac = mdev->dev->caps.def_mac[priv->port]; | |
1065 | if (ILLEGAL_MAC(priv->mac)) { | |
453a6082 | 1066 | en_err(priv, "Port: %d, invalid mac burned: 0x%llx, quiting\n", |
c27a02cd YP |
1067 | priv->port, priv->mac); |
1068 | err = -EINVAL; | |
1069 | goto out; | |
1070 | } | |
1071 | ||
1072 | priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + | |
1073 | DS_SIZE * MLX4_EN_MAX_RX_FRAGS); | |
1074 | err = mlx4_en_alloc_resources(priv); | |
1075 | if (err) | |
1076 | goto out; | |
1077 | ||
c27a02cd YP |
1078 | /* Allocate page for receive rings */ |
1079 | err = mlx4_alloc_hwq_res(mdev->dev, &priv->res, | |
1080 | MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE); | |
1081 | if (err) { | |
453a6082 | 1082 | en_err(priv, "Failed to allocate page for rx qps\n"); |
c27a02cd YP |
1083 | goto out; |
1084 | } | |
1085 | priv->allocated = 1; | |
1086 | ||
c27a02cd YP |
1087 | /* |
1088 | * Initialize netdev entry points | |
1089 | */ | |
3addc568 | 1090 | dev->netdev_ops = &mlx4_netdev_ops; |
c27a02cd | 1091 | dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT; |
1eb63a28 BH |
1092 | netif_set_real_num_tx_queues(dev, priv->tx_ring_num); |
1093 | netif_set_real_num_rx_queues(dev, priv->rx_ring_num); | |
3addc568 | 1094 | |
c27a02cd YP |
1095 | SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops); |
1096 | ||
1097 | /* Set defualt MAC */ | |
1098 | dev->addr_len = ETH_ALEN; | |
8bf2e58f YP |
1099 | for (i = 0; i < ETH_ALEN; i++) { |
1100 | dev->dev_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); | |
1101 | dev->perm_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); | |
1102 | } | |
c27a02cd YP |
1103 | |
1104 | /* | |
1105 | * Set driver features | |
1106 | */ | |
c8c64cff MM |
1107 | dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
1108 | if (mdev->LSO_support) | |
1109 | dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6; | |
1110 | ||
1111 | dev->vlan_features = dev->hw_features; | |
1112 | ||
1113 | dev->hw_features |= NETIF_F_RXCSUM; | |
1114 | dev->features = dev->hw_features | NETIF_F_HIGHDMA | | |
1115 | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | | |
1116 | NETIF_F_HW_VLAN_FILTER; | |
c27a02cd YP |
1117 | |
1118 | mdev->pndev[port] = dev; | |
1119 | ||
1120 | netif_carrier_off(dev); | |
1121 | err = register_netdev(dev); | |
1122 | if (err) { | |
453a6082 | 1123 | en_err(priv, "Netdev registration failed for port %d\n", port); |
c27a02cd YP |
1124 | goto out; |
1125 | } | |
453a6082 YP |
1126 | |
1127 | en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num); | |
1128 | en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); | |
1129 | ||
90822265 YP |
1130 | /* Configure port */ |
1131 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
1132 | MLX4_EN_MIN_MTU, | |
1133 | 0, 0, 0, 0); | |
1134 | if (err) { | |
1135 | en_err(priv, "Failed setting port general configurations " | |
1136 | "for port %d, with error %d\n", priv->port, err); | |
1137 | goto out; | |
1138 | } | |
1139 | ||
1140 | /* Init port */ | |
1141 | en_warn(priv, "Initializing port\n"); | |
1142 | err = mlx4_INIT_PORT(mdev->dev, priv->port); | |
1143 | if (err) { | |
1144 | en_err(priv, "Failed Initializing port\n"); | |
1145 | goto out; | |
1146 | } | |
c27a02cd | 1147 | priv->registered = 1; |
39f17b44 | 1148 | mlx4_en_set_default_moderation(priv); |
c27a02cd YP |
1149 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); |
1150 | return 0; | |
1151 | ||
1152 | out: | |
1153 | mlx4_en_destroy_netdev(dev); | |
1154 | return err; | |
1155 | } | |
1156 |