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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 | ||
8e586137 | 48 | static int mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
c27a02cd YP |
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 | |
8e586137 | 70 | return 0; |
c27a02cd YP |
71 | } |
72 | ||
8e586137 | 73 | static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
c27a02cd YP |
74 | { |
75 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
76 | struct mlx4_en_dev *mdev = priv->mdev; | |
77 | int err; | |
4c3eb3ca | 78 | int idx; |
c27a02cd | 79 | |
f1b553fb | 80 | en_dbg(HW, priv, "Killing VID:%d\n", vid); |
c27a02cd | 81 | |
f1b553fb | 82 | clear_bit(vid, priv->active_vlans); |
c27a02cd YP |
83 | |
84 | /* Remove VID from port VLAN filter */ | |
85 | mutex_lock(&mdev->state_lock); | |
4c3eb3ca EC |
86 | if (!mlx4_find_cached_vlan(mdev->dev, priv->port, vid, &idx)) |
87 | mlx4_unregister_vlan(mdev->dev, priv->port, idx); | |
88 | else | |
89 | en_err(priv, "could not find vid %d in cache\n", vid); | |
90 | ||
c27a02cd | 91 | if (mdev->device_up && priv->port_up) { |
f1b553fb | 92 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); |
c27a02cd | 93 | if (err) |
453a6082 | 94 | en_err(priv, "Failed configuring VLAN filter\n"); |
c27a02cd YP |
95 | } |
96 | mutex_unlock(&mdev->state_lock); | |
8e586137 JP |
97 | |
98 | return 0; | |
c27a02cd YP |
99 | } |
100 | ||
e7c1c2c4 | 101 | u64 mlx4_en_mac_to_u64(u8 *addr) |
c27a02cd YP |
102 | { |
103 | u64 mac = 0; | |
104 | int i; | |
105 | ||
106 | for (i = 0; i < ETH_ALEN; i++) { | |
107 | mac <<= 8; | |
108 | mac |= addr[i]; | |
109 | } | |
110 | return mac; | |
111 | } | |
112 | ||
113 | static int mlx4_en_set_mac(struct net_device *dev, void *addr) | |
114 | { | |
115 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
116 | struct mlx4_en_dev *mdev = priv->mdev; | |
117 | struct sockaddr *saddr = addr; | |
118 | ||
119 | if (!is_valid_ether_addr(saddr->sa_data)) | |
120 | return -EADDRNOTAVAIL; | |
121 | ||
122 | memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN); | |
123 | priv->mac = mlx4_en_mac_to_u64(dev->dev_addr); | |
124 | queue_work(mdev->workqueue, &priv->mac_task); | |
125 | return 0; | |
126 | } | |
127 | ||
128 | static void mlx4_en_do_set_mac(struct work_struct *work) | |
129 | { | |
130 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
131 | mac_task); | |
132 | struct mlx4_en_dev *mdev = priv->mdev; | |
133 | int err = 0; | |
134 | ||
135 | mutex_lock(&mdev->state_lock); | |
136 | if (priv->port_up) { | |
137 | /* Remove old MAC and insert the new one */ | |
1679200f | 138 | err = mlx4_replace_mac(mdev->dev, priv->port, |
ffe455ad | 139 | priv->base_qpn, priv->mac); |
c27a02cd | 140 | if (err) |
453a6082 | 141 | en_err(priv, "Failed changing HW MAC address\n"); |
c27a02cd | 142 | } else |
453a6082 YP |
143 | en_dbg(HW, priv, "Port is down while " |
144 | "registering mac, exiting...\n"); | |
c27a02cd YP |
145 | |
146 | mutex_unlock(&mdev->state_lock); | |
147 | } | |
148 | ||
149 | static void mlx4_en_clear_list(struct net_device *dev) | |
150 | { | |
151 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
c27a02cd | 152 | |
ff6e2163 | 153 | kfree(priv->mc_addrs); |
0e03567a | 154 | priv->mc_addrs = NULL; |
ff6e2163 | 155 | priv->mc_addrs_cnt = 0; |
c27a02cd YP |
156 | } |
157 | ||
158 | static void mlx4_en_cache_mclist(struct net_device *dev) | |
159 | { | |
160 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
22bedad3 | 161 | struct netdev_hw_addr *ha; |
ff6e2163 JP |
162 | char *mc_addrs; |
163 | int mc_addrs_cnt = netdev_mc_count(dev); | |
164 | int i; | |
165 | ||
166 | mc_addrs = kmalloc(mc_addrs_cnt * ETH_ALEN, GFP_ATOMIC); | |
167 | if (!mc_addrs) { | |
168 | en_err(priv, "failed to allocate multicast list\n"); | |
169 | return; | |
c27a02cd | 170 | } |
ff6e2163 | 171 | i = 0; |
22bedad3 JP |
172 | netdev_for_each_mc_addr(ha, dev) |
173 | memcpy(mc_addrs + i++ * ETH_ALEN, ha->addr, ETH_ALEN); | |
0e03567a | 174 | mlx4_en_clear_list(dev); |
ff6e2163 JP |
175 | priv->mc_addrs = mc_addrs; |
176 | priv->mc_addrs_cnt = mc_addrs_cnt; | |
c27a02cd YP |
177 | } |
178 | ||
179 | ||
180 | static void mlx4_en_set_multicast(struct net_device *dev) | |
181 | { | |
182 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
183 | ||
184 | if (!priv->port_up) | |
185 | return; | |
186 | ||
187 | queue_work(priv->mdev->workqueue, &priv->mcast_task); | |
188 | } | |
189 | ||
190 | static void mlx4_en_do_set_multicast(struct work_struct *work) | |
191 | { | |
192 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
193 | mcast_task); | |
194 | struct mlx4_en_dev *mdev = priv->mdev; | |
195 | struct net_device *dev = priv->dev; | |
c27a02cd | 196 | u64 mcast_addr = 0; |
1679200f | 197 | u8 mc_list[16] = {0}; |
c27a02cd YP |
198 | int err; |
199 | ||
200 | mutex_lock(&mdev->state_lock); | |
201 | if (!mdev->device_up) { | |
453a6082 YP |
202 | en_dbg(HW, priv, "Card is not up, " |
203 | "ignoring multicast change.\n"); | |
c27a02cd YP |
204 | goto out; |
205 | } | |
206 | if (!priv->port_up) { | |
453a6082 YP |
207 | en_dbg(HW, priv, "Port is down, " |
208 | "ignoring multicast change.\n"); | |
c27a02cd YP |
209 | goto out; |
210 | } | |
211 | ||
ffe455ad EE |
212 | if (!netif_carrier_ok(dev)) { |
213 | if (!mlx4_en_QUERY_PORT(mdev, priv->port)) { | |
214 | if (priv->port_state.link_state) { | |
215 | priv->last_link_state = MLX4_DEV_EVENT_PORT_UP; | |
216 | netif_carrier_on(dev); | |
217 | en_dbg(LINK, priv, "Link Up\n"); | |
218 | } | |
219 | } | |
220 | } | |
221 | ||
c27a02cd YP |
222 | /* |
223 | * Promsicuous mode: disable all filters | |
224 | */ | |
225 | ||
226 | if (dev->flags & IFF_PROMISC) { | |
227 | if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) { | |
228 | if (netif_msg_rx_status(priv)) | |
453a6082 | 229 | en_warn(priv, "Entering promiscuous mode\n"); |
c27a02cd YP |
230 | priv->flags |= MLX4_EN_FLAG_PROMISC; |
231 | ||
232 | /* Enable promiscouos mode */ | |
ccf86321 OG |
233 | if (!(mdev->dev->caps.flags & |
234 | MLX4_DEV_CAP_FLAG_VEP_UC_STEER)) | |
1679200f YP |
235 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, |
236 | priv->base_qpn, 1); | |
237 | else | |
238 | err = mlx4_unicast_promisc_add(mdev->dev, priv->base_qpn, | |
239 | priv->port); | |
c27a02cd | 240 | if (err) |
453a6082 | 241 | en_err(priv, "Failed enabling " |
25985edc | 242 | "promiscuous mode\n"); |
c27a02cd YP |
243 | |
244 | /* Disable port multicast filter (unconditionally) */ | |
245 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
246 | 0, MLX4_MCAST_DISABLE); | |
247 | if (err) | |
453a6082 YP |
248 | en_err(priv, "Failed disabling " |
249 | "multicast filter\n"); | |
c27a02cd | 250 | |
1679200f YP |
251 | /* Add the default qp number as multicast promisc */ |
252 | if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { | |
253 | err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, | |
254 | priv->port); | |
255 | if (err) | |
256 | en_err(priv, "Failed entering multicast promisc mode\n"); | |
257 | priv->flags |= MLX4_EN_FLAG_MC_PROMISC; | |
258 | } | |
259 | ||
f1b553fb JP |
260 | /* Disable port VLAN filter */ |
261 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); | |
262 | if (err) | |
263 | en_err(priv, "Failed disabling VLAN filter\n"); | |
c27a02cd YP |
264 | } |
265 | goto out; | |
266 | } | |
267 | ||
268 | /* | |
25985edc | 269 | * Not in promiscuous mode |
c27a02cd YP |
270 | */ |
271 | ||
272 | if (priv->flags & MLX4_EN_FLAG_PROMISC) { | |
273 | if (netif_msg_rx_status(priv)) | |
453a6082 | 274 | en_warn(priv, "Leaving promiscuous mode\n"); |
c27a02cd YP |
275 | priv->flags &= ~MLX4_EN_FLAG_PROMISC; |
276 | ||
277 | /* Disable promiscouos mode */ | |
ccf86321 | 278 | if (!(mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER)) |
1679200f YP |
279 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, |
280 | priv->base_qpn, 0); | |
281 | else | |
282 | err = mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn, | |
283 | priv->port); | |
c27a02cd | 284 | if (err) |
25985edc | 285 | en_err(priv, "Failed disabling promiscuous mode\n"); |
c27a02cd | 286 | |
1679200f YP |
287 | /* Disable Multicast promisc */ |
288 | if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { | |
289 | err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, | |
290 | priv->port); | |
291 | if (err) | |
25985edc | 292 | en_err(priv, "Failed disabling multicast promiscuous mode\n"); |
1679200f YP |
293 | priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; |
294 | } | |
295 | ||
c27a02cd | 296 | /* Enable port VLAN filter */ |
f1b553fb | 297 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); |
c27a02cd | 298 | if (err) |
453a6082 | 299 | en_err(priv, "Failed enabling VLAN filter\n"); |
c27a02cd YP |
300 | } |
301 | ||
302 | /* Enable/disable the multicast filter according to IFF_ALLMULTI */ | |
303 | if (dev->flags & IFF_ALLMULTI) { | |
304 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
305 | 0, MLX4_MCAST_DISABLE); | |
306 | if (err) | |
453a6082 | 307 | en_err(priv, "Failed disabling multicast filter\n"); |
1679200f YP |
308 | |
309 | /* Add the default qp number as multicast promisc */ | |
310 | if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { | |
311 | err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, | |
312 | priv->port); | |
313 | if (err) | |
314 | en_err(priv, "Failed entering multicast promisc mode\n"); | |
315 | priv->flags |= MLX4_EN_FLAG_MC_PROMISC; | |
316 | } | |
c27a02cd | 317 | } else { |
ff6e2163 | 318 | int i; |
1679200f YP |
319 | /* Disable Multicast promisc */ |
320 | if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { | |
321 | err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, | |
322 | priv->port); | |
323 | if (err) | |
25985edc | 324 | en_err(priv, "Failed disabling multicast promiscuous mode\n"); |
1679200f YP |
325 | priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; |
326 | } | |
ff6e2163 | 327 | |
c27a02cd YP |
328 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, |
329 | 0, MLX4_MCAST_DISABLE); | |
330 | if (err) | |
453a6082 | 331 | en_err(priv, "Failed disabling multicast filter\n"); |
c27a02cd | 332 | |
1679200f YP |
333 | /* Detach our qp from all the multicast addresses */ |
334 | for (i = 0; i < priv->mc_addrs_cnt; i++) { | |
335 | memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); | |
336 | mc_list[5] = priv->port; | |
337 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, | |
338 | mc_list, MLX4_PROT_ETH); | |
339 | } | |
c27a02cd YP |
340 | /* Flush mcast filter and init it with broadcast address */ |
341 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST, | |
342 | 1, MLX4_MCAST_CONFIG); | |
343 | ||
344 | /* Update multicast list - we cache all addresses so they won't | |
345 | * change while HW is updated holding the command semaphor */ | |
346 | netif_tx_lock_bh(dev); | |
347 | mlx4_en_cache_mclist(dev); | |
348 | netif_tx_unlock_bh(dev); | |
ff6e2163 JP |
349 | for (i = 0; i < priv->mc_addrs_cnt; i++) { |
350 | mcast_addr = | |
351 | mlx4_en_mac_to_u64(priv->mc_addrs + i * ETH_ALEN); | |
1679200f YP |
352 | memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); |
353 | mc_list[5] = priv->port; | |
354 | mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, | |
355 | mc_list, 0, MLX4_PROT_ETH); | |
c27a02cd YP |
356 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, |
357 | mcast_addr, 0, MLX4_MCAST_CONFIG); | |
358 | } | |
359 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
360 | 0, MLX4_MCAST_ENABLE); | |
361 | if (err) | |
453a6082 | 362 | en_err(priv, "Failed enabling multicast filter\n"); |
c27a02cd YP |
363 | } |
364 | out: | |
365 | mutex_unlock(&mdev->state_lock); | |
366 | } | |
367 | ||
368 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
369 | static void mlx4_en_netpoll(struct net_device *dev) | |
370 | { | |
371 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
372 | struct mlx4_en_cq *cq; | |
373 | unsigned long flags; | |
374 | int i; | |
375 | ||
376 | for (i = 0; i < priv->rx_ring_num; i++) { | |
377 | cq = &priv->rx_cq[i]; | |
378 | spin_lock_irqsave(&cq->lock, flags); | |
379 | napi_synchronize(&cq->napi); | |
380 | mlx4_en_process_rx_cq(dev, cq, 0); | |
381 | spin_unlock_irqrestore(&cq->lock, flags); | |
382 | } | |
383 | } | |
384 | #endif | |
385 | ||
386 | static void mlx4_en_tx_timeout(struct net_device *dev) | |
387 | { | |
388 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
389 | struct mlx4_en_dev *mdev = priv->mdev; | |
390 | ||
391 | if (netif_msg_timer(priv)) | |
453a6082 | 392 | en_warn(priv, "Tx timeout called on port:%d\n", priv->port); |
c27a02cd | 393 | |
1e338db5 | 394 | priv->port_stats.tx_timeout++; |
453a6082 | 395 | en_dbg(DRV, priv, "Scheduling watchdog\n"); |
1e338db5 | 396 | queue_work(mdev->workqueue, &priv->watchdog_task); |
c27a02cd YP |
397 | } |
398 | ||
399 | ||
400 | static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev) | |
401 | { | |
402 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
403 | ||
404 | spin_lock_bh(&priv->stats_lock); | |
405 | memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats)); | |
406 | spin_unlock_bh(&priv->stats_lock); | |
407 | ||
408 | return &priv->ret_stats; | |
409 | } | |
410 | ||
411 | static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv) | |
412 | { | |
c27a02cd YP |
413 | struct mlx4_en_cq *cq; |
414 | int i; | |
415 | ||
416 | /* If we haven't received a specific coalescing setting | |
98a1708d | 417 | * (module param), we set the moderation parameters as follows: |
c27a02cd YP |
418 | * - moder_cnt is set to the number of mtu sized packets to |
419 | * satisfy our coelsing target. | |
420 | * - moder_time is set to a fixed value. | |
421 | */ | |
3db36fb2 | 422 | priv->rx_frames = MLX4_EN_RX_COAL_TARGET; |
60b9f9e5 | 423 | priv->rx_usecs = MLX4_EN_RX_COAL_TIME; |
453a6082 YP |
424 | en_dbg(INTR, priv, "Default coalesing params for mtu:%d - " |
425 | "rx_frames:%d rx_usecs:%d\n", | |
c27a02cd YP |
426 | priv->dev->mtu, priv->rx_frames, priv->rx_usecs); |
427 | ||
428 | /* Setup cq moderation params */ | |
429 | for (i = 0; i < priv->rx_ring_num; i++) { | |
430 | cq = &priv->rx_cq[i]; | |
431 | cq->moder_cnt = priv->rx_frames; | |
432 | cq->moder_time = priv->rx_usecs; | |
6b4d8d9f AG |
433 | priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; |
434 | priv->last_moder_packets[i] = 0; | |
435 | priv->last_moder_bytes[i] = 0; | |
c27a02cd YP |
436 | } |
437 | ||
438 | for (i = 0; i < priv->tx_ring_num; i++) { | |
439 | cq = &priv->tx_cq[i]; | |
440 | cq->moder_cnt = MLX4_EN_TX_COAL_PKTS; | |
441 | cq->moder_time = MLX4_EN_TX_COAL_TIME; | |
442 | } | |
443 | ||
444 | /* Reset auto-moderation params */ | |
445 | priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW; | |
446 | priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW; | |
447 | priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH; | |
448 | priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH; | |
449 | priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL; | |
60b9f9e5 | 450 | priv->adaptive_rx_coal = 1; |
c27a02cd | 451 | priv->last_moder_jiffies = 0; |
c27a02cd | 452 | priv->last_moder_tx_packets = 0; |
c27a02cd YP |
453 | } |
454 | ||
455 | static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) | |
456 | { | |
457 | unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies); | |
c27a02cd YP |
458 | struct mlx4_en_cq *cq; |
459 | unsigned long packets; | |
460 | unsigned long rate; | |
461 | unsigned long avg_pkt_size; | |
462 | unsigned long rx_packets; | |
463 | unsigned long rx_bytes; | |
c27a02cd YP |
464 | unsigned long rx_pkt_diff; |
465 | int moder_time; | |
6b4d8d9f | 466 | int ring, err; |
c27a02cd YP |
467 | |
468 | if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ) | |
469 | return; | |
470 | ||
6b4d8d9f AG |
471 | for (ring = 0; ring < priv->rx_ring_num; ring++) { |
472 | spin_lock_bh(&priv->stats_lock); | |
473 | rx_packets = priv->rx_ring[ring].packets; | |
474 | rx_bytes = priv->rx_ring[ring].bytes; | |
475 | spin_unlock_bh(&priv->stats_lock); | |
476 | ||
477 | rx_pkt_diff = ((unsigned long) (rx_packets - | |
478 | priv->last_moder_packets[ring])); | |
479 | packets = rx_pkt_diff; | |
480 | rate = packets * HZ / period; | |
481 | avg_pkt_size = packets ? ((unsigned long) (rx_bytes - | |
482 | priv->last_moder_bytes[ring])) / packets : 0; | |
483 | ||
484 | /* Apply auto-moderation only when packet rate | |
485 | * exceeds a rate that it matters */ | |
486 | if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) && | |
487 | avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) { | |
c27a02cd YP |
488 | if (rate < priv->pkt_rate_low) |
489 | moder_time = priv->rx_usecs_low; | |
490 | else if (rate > priv->pkt_rate_high) | |
491 | moder_time = priv->rx_usecs_high; | |
492 | else | |
493 | moder_time = (rate - priv->pkt_rate_low) * | |
494 | (priv->rx_usecs_high - priv->rx_usecs_low) / | |
495 | (priv->pkt_rate_high - priv->pkt_rate_low) + | |
496 | priv->rx_usecs_low; | |
6b4d8d9f AG |
497 | } else { |
498 | moder_time = priv->rx_usecs_low; | |
c27a02cd | 499 | } |
c27a02cd | 500 | |
6b4d8d9f AG |
501 | if (moder_time != priv->last_moder_time[ring]) { |
502 | priv->last_moder_time[ring] = moder_time; | |
503 | cq = &priv->rx_cq[ring]; | |
c27a02cd YP |
504 | cq->moder_time = moder_time; |
505 | err = mlx4_en_set_cq_moder(priv, cq); | |
6b4d8d9f AG |
506 | if (err) |
507 | en_err(priv, "Failed modifying moderation " | |
508 | "for cq:%d\n", ring); | |
c27a02cd | 509 | } |
6b4d8d9f AG |
510 | priv->last_moder_packets[ring] = rx_packets; |
511 | priv->last_moder_bytes[ring] = rx_bytes; | |
c27a02cd YP |
512 | } |
513 | ||
c27a02cd YP |
514 | priv->last_moder_jiffies = jiffies; |
515 | } | |
516 | ||
517 | static void mlx4_en_do_get_stats(struct work_struct *work) | |
518 | { | |
bf6aede7 | 519 | struct delayed_work *delay = to_delayed_work(work); |
c27a02cd YP |
520 | struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, |
521 | stats_task); | |
522 | struct mlx4_en_dev *mdev = priv->mdev; | |
523 | int err; | |
524 | ||
525 | err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0); | |
526 | if (err) | |
2381a55c | 527 | en_dbg(HW, priv, "Could not update stats\n"); |
c27a02cd YP |
528 | |
529 | mutex_lock(&mdev->state_lock); | |
530 | if (mdev->device_up) { | |
531 | if (priv->port_up) | |
532 | mlx4_en_auto_moderation(priv); | |
533 | ||
534 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); | |
535 | } | |
d7e1a487 YP |
536 | if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) { |
537 | queue_work(mdev->workqueue, &priv->mac_task); | |
538 | mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0; | |
539 | } | |
c27a02cd YP |
540 | mutex_unlock(&mdev->state_lock); |
541 | } | |
542 | ||
543 | static void mlx4_en_linkstate(struct work_struct *work) | |
544 | { | |
545 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
546 | linkstate_task); | |
547 | struct mlx4_en_dev *mdev = priv->mdev; | |
548 | int linkstate = priv->link_state; | |
549 | ||
550 | mutex_lock(&mdev->state_lock); | |
551 | /* If observable port state changed set carrier state and | |
552 | * report to system log */ | |
553 | if (priv->last_link_state != linkstate) { | |
554 | if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) { | |
e5cc44b2 | 555 | en_info(priv, "Link Down\n"); |
c27a02cd YP |
556 | netif_carrier_off(priv->dev); |
557 | } else { | |
e5cc44b2 | 558 | en_info(priv, "Link Up\n"); |
c27a02cd YP |
559 | netif_carrier_on(priv->dev); |
560 | } | |
561 | } | |
562 | priv->last_link_state = linkstate; | |
563 | mutex_unlock(&mdev->state_lock); | |
564 | } | |
565 | ||
566 | ||
18cc42a3 | 567 | int mlx4_en_start_port(struct net_device *dev) |
c27a02cd YP |
568 | { |
569 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
570 | struct mlx4_en_dev *mdev = priv->mdev; | |
571 | struct mlx4_en_cq *cq; | |
572 | struct mlx4_en_tx_ring *tx_ring; | |
c27a02cd YP |
573 | int rx_index = 0; |
574 | int tx_index = 0; | |
c27a02cd YP |
575 | int err = 0; |
576 | int i; | |
577 | int j; | |
1679200f | 578 | u8 mc_list[16] = {0}; |
c27a02cd YP |
579 | |
580 | if (priv->port_up) { | |
453a6082 | 581 | en_dbg(DRV, priv, "start port called while port already up\n"); |
c27a02cd YP |
582 | return 0; |
583 | } | |
584 | ||
585 | /* Calculate Rx buf size */ | |
586 | dev->mtu = min(dev->mtu, priv->max_mtu); | |
587 | mlx4_en_calc_rx_buf(dev); | |
453a6082 | 588 | en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size); |
38aab07c | 589 | |
c27a02cd | 590 | /* Configure rx cq's and rings */ |
38aab07c YP |
591 | err = mlx4_en_activate_rx_rings(priv); |
592 | if (err) { | |
453a6082 | 593 | en_err(priv, "Failed to activate RX rings\n"); |
38aab07c YP |
594 | return err; |
595 | } | |
c27a02cd YP |
596 | for (i = 0; i < priv->rx_ring_num; i++) { |
597 | cq = &priv->rx_cq[i]; | |
c27a02cd | 598 | |
76532d0c | 599 | err = mlx4_en_activate_cq(priv, cq, i); |
c27a02cd | 600 | if (err) { |
453a6082 | 601 | en_err(priv, "Failed activating Rx CQ\n"); |
a4233304 | 602 | goto cq_err; |
c27a02cd YP |
603 | } |
604 | for (j = 0; j < cq->size; j++) | |
605 | cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK; | |
606 | err = mlx4_en_set_cq_moder(priv, cq); | |
607 | if (err) { | |
453a6082 | 608 | en_err(priv, "Failed setting cq moderation parameters"); |
c27a02cd YP |
609 | mlx4_en_deactivate_cq(priv, cq); |
610 | goto cq_err; | |
611 | } | |
612 | mlx4_en_arm_cq(priv, cq); | |
38aab07c | 613 | priv->rx_ring[i].cqn = cq->mcq.cqn; |
c27a02cd YP |
614 | ++rx_index; |
615 | } | |
616 | ||
ffe455ad EE |
617 | /* Set qp number */ |
618 | en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port); | |
619 | err = mlx4_get_eth_qp(mdev->dev, priv->port, | |
620 | priv->mac, &priv->base_qpn); | |
1679200f | 621 | if (err) { |
ffe455ad | 622 | en_err(priv, "Failed getting eth qp\n"); |
1679200f YP |
623 | goto cq_err; |
624 | } | |
625 | mdev->mac_removed[priv->port] = 0; | |
626 | ||
c27a02cd YP |
627 | err = mlx4_en_config_rss_steer(priv); |
628 | if (err) { | |
453a6082 | 629 | en_err(priv, "Failed configuring rss steering\n"); |
1679200f | 630 | goto mac_err; |
c27a02cd YP |
631 | } |
632 | ||
633 | /* Configure tx cq's and rings */ | |
634 | for (i = 0; i < priv->tx_ring_num; i++) { | |
635 | /* Configure cq */ | |
636 | cq = &priv->tx_cq[i]; | |
76532d0c | 637 | err = mlx4_en_activate_cq(priv, cq, i); |
c27a02cd | 638 | if (err) { |
453a6082 | 639 | en_err(priv, "Failed allocating Tx CQ\n"); |
c27a02cd YP |
640 | goto tx_err; |
641 | } | |
642 | err = mlx4_en_set_cq_moder(priv, cq); | |
643 | if (err) { | |
453a6082 | 644 | en_err(priv, "Failed setting cq moderation parameters"); |
c27a02cd YP |
645 | mlx4_en_deactivate_cq(priv, cq); |
646 | goto tx_err; | |
647 | } | |
453a6082 | 648 | en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i); |
c27a02cd YP |
649 | cq->buf->wqe_index = cpu_to_be16(0xffff); |
650 | ||
651 | /* Configure ring */ | |
652 | tx_ring = &priv->tx_ring[i]; | |
9f519f68 | 653 | err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn); |
c27a02cd | 654 | if (err) { |
453a6082 | 655 | en_err(priv, "Failed allocating Tx ring\n"); |
c27a02cd YP |
656 | mlx4_en_deactivate_cq(priv, cq); |
657 | goto tx_err; | |
658 | } | |
659 | /* Set initial ownership of all Tx TXBBs to SW (1) */ | |
660 | for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE) | |
661 | *((u32 *) (tx_ring->buf + j)) = 0xffffffff; | |
662 | ++tx_index; | |
663 | } | |
664 | ||
665 | /* Configure port */ | |
666 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
667 | priv->rx_skb_size + ETH_FCS_LEN, | |
d53b93f2 YP |
668 | priv->prof->tx_pause, |
669 | priv->prof->tx_ppp, | |
670 | priv->prof->rx_pause, | |
671 | priv->prof->rx_ppp); | |
c27a02cd | 672 | if (err) { |
453a6082 YP |
673 | en_err(priv, "Failed setting port general configurations " |
674 | "for port %d, with error %d\n", priv->port, err); | |
c27a02cd YP |
675 | goto tx_err; |
676 | } | |
677 | /* Set default qp number */ | |
678 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); | |
679 | if (err) { | |
453a6082 | 680 | en_err(priv, "Failed setting default qp numbers\n"); |
c27a02cd YP |
681 | goto tx_err; |
682 | } | |
c27a02cd YP |
683 | |
684 | /* Init port */ | |
453a6082 | 685 | en_dbg(HW, priv, "Initializing port\n"); |
c27a02cd YP |
686 | err = mlx4_INIT_PORT(mdev->dev, priv->port); |
687 | if (err) { | |
453a6082 | 688 | en_err(priv, "Failed Initializing port\n"); |
1679200f | 689 | goto tx_err; |
c27a02cd YP |
690 | } |
691 | ||
1679200f YP |
692 | /* Attach rx QP to bradcast address */ |
693 | memset(&mc_list[10], 0xff, ETH_ALEN); | |
694 | mc_list[5] = priv->port; | |
695 | if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list, | |
696 | 0, MLX4_PROT_ETH)) | |
697 | mlx4_warn(mdev, "Failed Attaching Broadcast\n"); | |
698 | ||
b5845f98 HX |
699 | /* Must redo promiscuous mode setup. */ |
700 | priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC); | |
701 | ||
c27a02cd YP |
702 | /* Schedule multicast task to populate multicast list */ |
703 | queue_work(mdev->workqueue, &priv->mcast_task); | |
704 | ||
93ece0c1 EE |
705 | mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap); |
706 | ||
c27a02cd | 707 | priv->port_up = true; |
a11faac7 | 708 | netif_tx_start_all_queues(dev); |
c27a02cd YP |
709 | return 0; |
710 | ||
c27a02cd YP |
711 | tx_err: |
712 | while (tx_index--) { | |
713 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]); | |
714 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]); | |
715 | } | |
716 | ||
717 | mlx4_en_release_rss_steer(priv); | |
1679200f | 718 | mac_err: |
ffe455ad | 719 | mlx4_put_eth_qp(mdev->dev, priv->port, priv->mac, priv->base_qpn); |
c27a02cd YP |
720 | cq_err: |
721 | while (rx_index--) | |
722 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]); | |
38aab07c YP |
723 | for (i = 0; i < priv->rx_ring_num; i++) |
724 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
c27a02cd YP |
725 | |
726 | return err; /* need to close devices */ | |
727 | } | |
728 | ||
729 | ||
18cc42a3 | 730 | void mlx4_en_stop_port(struct net_device *dev) |
c27a02cd YP |
731 | { |
732 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
733 | struct mlx4_en_dev *mdev = priv->mdev; | |
734 | int i; | |
1679200f | 735 | u8 mc_list[16] = {0}; |
c27a02cd YP |
736 | |
737 | if (!priv->port_up) { | |
453a6082 | 738 | en_dbg(DRV, priv, "stop port called while port already down\n"); |
c27a02cd YP |
739 | return; |
740 | } | |
c27a02cd YP |
741 | |
742 | /* Synchronize with tx routine */ | |
743 | netif_tx_lock_bh(dev); | |
3c05f5ef | 744 | netif_tx_stop_all_queues(dev); |
c27a02cd YP |
745 | netif_tx_unlock_bh(dev); |
746 | ||
7c287380 | 747 | /* Set port as not active */ |
3c05f5ef | 748 | priv->port_up = false; |
c27a02cd | 749 | |
1679200f YP |
750 | /* Detach All multicasts */ |
751 | memset(&mc_list[10], 0xff, ETH_ALEN); | |
752 | mc_list[5] = priv->port; | |
753 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list, | |
754 | MLX4_PROT_ETH); | |
755 | for (i = 0; i < priv->mc_addrs_cnt; i++) { | |
756 | memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); | |
757 | mc_list[5] = priv->port; | |
758 | mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, | |
759 | mc_list, MLX4_PROT_ETH); | |
760 | } | |
761 | mlx4_en_clear_list(dev); | |
762 | /* Flush multicast filter */ | |
763 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); | |
764 | ||
c27a02cd YP |
765 | /* Free TX Rings */ |
766 | for (i = 0; i < priv->tx_ring_num; i++) { | |
767 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]); | |
768 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]); | |
769 | } | |
770 | msleep(10); | |
771 | ||
772 | for (i = 0; i < priv->tx_ring_num; i++) | |
773 | mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]); | |
774 | ||
775 | /* Free RSS qps */ | |
776 | mlx4_en_release_rss_steer(priv); | |
777 | ||
ffe455ad EE |
778 | /* Unregister Mac address for the port */ |
779 | mlx4_put_eth_qp(mdev->dev, priv->port, priv->mac, priv->base_qpn); | |
780 | mdev->mac_removed[priv->port] = 1; | |
781 | ||
c27a02cd YP |
782 | /* Free RX Rings */ |
783 | for (i = 0; i < priv->rx_ring_num; i++) { | |
784 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
785 | while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state)) | |
786 | msleep(1); | |
787 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]); | |
788 | } | |
7c287380 YP |
789 | |
790 | /* close port*/ | |
791 | mlx4_CLOSE_PORT(mdev->dev, priv->port); | |
c27a02cd YP |
792 | } |
793 | ||
794 | static void mlx4_en_restart(struct work_struct *work) | |
795 | { | |
796 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
797 | watchdog_task); | |
798 | struct mlx4_en_dev *mdev = priv->mdev; | |
799 | struct net_device *dev = priv->dev; | |
800 | ||
453a6082 | 801 | en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port); |
1e338db5 YP |
802 | |
803 | mutex_lock(&mdev->state_lock); | |
804 | if (priv->port_up) { | |
805 | mlx4_en_stop_port(dev); | |
806 | if (mlx4_en_start_port(dev)) | |
453a6082 | 807 | en_err(priv, "Failed restarting port %d\n", priv->port); |
1e338db5 YP |
808 | } |
809 | mutex_unlock(&mdev->state_lock); | |
c27a02cd YP |
810 | } |
811 | ||
b477ba62 | 812 | static void mlx4_en_clear_stats(struct net_device *dev) |
c27a02cd YP |
813 | { |
814 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
815 | struct mlx4_en_dev *mdev = priv->mdev; | |
816 | int i; | |
c27a02cd | 817 | |
c27a02cd | 818 | if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) |
453a6082 | 819 | en_dbg(HW, priv, "Failed dumping statistics\n"); |
c27a02cd YP |
820 | |
821 | memset(&priv->stats, 0, sizeof(priv->stats)); | |
822 | memset(&priv->pstats, 0, sizeof(priv->pstats)); | |
b477ba62 EE |
823 | memset(&priv->pkstats, 0, sizeof(priv->pkstats)); |
824 | memset(&priv->port_stats, 0, sizeof(priv->port_stats)); | |
c27a02cd YP |
825 | |
826 | for (i = 0; i < priv->tx_ring_num; i++) { | |
827 | priv->tx_ring[i].bytes = 0; | |
828 | priv->tx_ring[i].packets = 0; | |
b477ba62 | 829 | priv->tx_ring[i].tx_csum = 0; |
c27a02cd YP |
830 | } |
831 | for (i = 0; i < priv->rx_ring_num; i++) { | |
832 | priv->rx_ring[i].bytes = 0; | |
833 | priv->rx_ring[i].packets = 0; | |
b477ba62 EE |
834 | priv->rx_ring[i].csum_ok = 0; |
835 | priv->rx_ring[i].csum_none = 0; | |
c27a02cd | 836 | } |
b477ba62 EE |
837 | } |
838 | ||
839 | static int mlx4_en_open(struct net_device *dev) | |
840 | { | |
841 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
842 | struct mlx4_en_dev *mdev = priv->mdev; | |
843 | int err = 0; | |
844 | ||
845 | mutex_lock(&mdev->state_lock); | |
846 | ||
847 | if (!mdev->device_up) { | |
848 | en_err(priv, "Cannot open - device down/disabled\n"); | |
849 | err = -EBUSY; | |
850 | goto out; | |
851 | } | |
852 | ||
853 | /* Reset HW statistics and SW counters */ | |
854 | mlx4_en_clear_stats(dev); | |
c27a02cd | 855 | |
c27a02cd YP |
856 | err = mlx4_en_start_port(dev); |
857 | if (err) | |
453a6082 | 858 | en_err(priv, "Failed starting port:%d\n", priv->port); |
c27a02cd YP |
859 | |
860 | out: | |
861 | mutex_unlock(&mdev->state_lock); | |
862 | return err; | |
863 | } | |
864 | ||
865 | ||
866 | static int mlx4_en_close(struct net_device *dev) | |
867 | { | |
868 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
869 | struct mlx4_en_dev *mdev = priv->mdev; | |
870 | ||
453a6082 | 871 | en_dbg(IFDOWN, priv, "Close port called\n"); |
c27a02cd YP |
872 | |
873 | mutex_lock(&mdev->state_lock); | |
874 | ||
875 | mlx4_en_stop_port(dev); | |
876 | netif_carrier_off(dev); | |
877 | ||
878 | mutex_unlock(&mdev->state_lock); | |
879 | return 0; | |
880 | } | |
881 | ||
fe0af03c | 882 | void mlx4_en_free_resources(struct mlx4_en_priv *priv) |
c27a02cd YP |
883 | { |
884 | int i; | |
885 | ||
886 | for (i = 0; i < priv->tx_ring_num; i++) { | |
887 | if (priv->tx_ring[i].tx_info) | |
888 | mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); | |
889 | if (priv->tx_cq[i].buf) | |
fe0af03c | 890 | mlx4_en_destroy_cq(priv, &priv->tx_cq[i]); |
c27a02cd YP |
891 | } |
892 | ||
893 | for (i = 0; i < priv->rx_ring_num; i++) { | |
894 | if (priv->rx_ring[i].rx_info) | |
895 | mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]); | |
896 | if (priv->rx_cq[i].buf) | |
fe0af03c | 897 | mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); |
c27a02cd YP |
898 | } |
899 | } | |
900 | ||
18cc42a3 | 901 | int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) |
c27a02cd | 902 | { |
c27a02cd YP |
903 | struct mlx4_en_port_profile *prof = priv->prof; |
904 | int i; | |
87a5c389 YP |
905 | int base_tx_qpn, err; |
906 | ||
907 | err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &base_tx_qpn); | |
908 | if (err) { | |
909 | en_err(priv, "failed reserving range for TX rings\n"); | |
910 | return err; | |
911 | } | |
c27a02cd YP |
912 | |
913 | /* Create tx Rings */ | |
914 | for (i = 0; i < priv->tx_ring_num; i++) { | |
915 | if (mlx4_en_create_cq(priv, &priv->tx_cq[i], | |
916 | prof->tx_ring_size, i, TX)) | |
917 | goto err; | |
918 | ||
87a5c389 | 919 | if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], base_tx_qpn + i, |
c27a02cd YP |
920 | prof->tx_ring_size, TXBB_SIZE)) |
921 | goto err; | |
922 | } | |
923 | ||
924 | /* Create rx Rings */ | |
925 | for (i = 0; i < priv->rx_ring_num; i++) { | |
926 | if (mlx4_en_create_cq(priv, &priv->rx_cq[i], | |
927 | prof->rx_ring_size, i, RX)) | |
928 | goto err; | |
929 | ||
930 | if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i], | |
931 | prof->rx_ring_size, priv->stride)) | |
932 | goto err; | |
933 | } | |
934 | ||
935 | return 0; | |
936 | ||
937 | err: | |
453a6082 | 938 | en_err(priv, "Failed to allocate NIC resources\n"); |
87a5c389 | 939 | mlx4_qp_release_range(priv->mdev->dev, base_tx_qpn, priv->tx_ring_num); |
c27a02cd YP |
940 | return -ENOMEM; |
941 | } | |
942 | ||
943 | ||
944 | void mlx4_en_destroy_netdev(struct net_device *dev) | |
945 | { | |
946 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
947 | struct mlx4_en_dev *mdev = priv->mdev; | |
948 | ||
453a6082 | 949 | en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port); |
c27a02cd YP |
950 | |
951 | /* Unregister device - this will close the port if it was up */ | |
952 | if (priv->registered) | |
953 | unregister_netdev(dev); | |
954 | ||
955 | if (priv->allocated) | |
956 | mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); | |
957 | ||
958 | cancel_delayed_work(&priv->stats_task); | |
c27a02cd YP |
959 | /* flush any pending task for this netdev */ |
960 | flush_workqueue(mdev->workqueue); | |
961 | ||
962 | /* Detach the netdev so tasks would not attempt to access it */ | |
963 | mutex_lock(&mdev->state_lock); | |
964 | mdev->pndev[priv->port] = NULL; | |
965 | mutex_unlock(&mdev->state_lock); | |
966 | ||
fe0af03c | 967 | mlx4_en_free_resources(priv); |
c27a02cd YP |
968 | free_netdev(dev); |
969 | } | |
970 | ||
971 | static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) | |
972 | { | |
973 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
974 | struct mlx4_en_dev *mdev = priv->mdev; | |
975 | int err = 0; | |
976 | ||
453a6082 | 977 | en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n", |
c27a02cd YP |
978 | dev->mtu, new_mtu); |
979 | ||
980 | if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) { | |
453a6082 | 981 | en_err(priv, "Bad MTU size:%d.\n", new_mtu); |
c27a02cd YP |
982 | return -EPERM; |
983 | } | |
984 | dev->mtu = new_mtu; | |
985 | ||
986 | if (netif_running(dev)) { | |
987 | mutex_lock(&mdev->state_lock); | |
988 | if (!mdev->device_up) { | |
989 | /* NIC is probably restarting - let watchdog task reset | |
990 | * the port */ | |
453a6082 | 991 | en_dbg(DRV, priv, "Change MTU called with card down!?\n"); |
c27a02cd YP |
992 | } else { |
993 | mlx4_en_stop_port(dev); | |
c27a02cd YP |
994 | err = mlx4_en_start_port(dev); |
995 | if (err) { | |
453a6082 | 996 | en_err(priv, "Failed restarting port:%d\n", |
c27a02cd YP |
997 | priv->port); |
998 | queue_work(mdev->workqueue, &priv->watchdog_task); | |
999 | } | |
1000 | } | |
1001 | mutex_unlock(&mdev->state_lock); | |
1002 | } | |
1003 | return 0; | |
1004 | } | |
1005 | ||
60d6fe99 AV |
1006 | static int mlx4_en_set_features(struct net_device *netdev, |
1007 | netdev_features_t features) | |
1008 | { | |
1009 | struct mlx4_en_priv *priv = netdev_priv(netdev); | |
1010 | ||
1011 | if (features & NETIF_F_LOOPBACK) | |
1012 | priv->ctrl_flags |= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK); | |
1013 | else | |
1014 | priv->ctrl_flags &= | |
1015 | cpu_to_be32(~MLX4_WQE_CTRL_FORCE_LOOPBACK); | |
1016 | ||
1017 | return 0; | |
1018 | ||
1019 | } | |
1020 | ||
3addc568 SH |
1021 | static const struct net_device_ops mlx4_netdev_ops = { |
1022 | .ndo_open = mlx4_en_open, | |
1023 | .ndo_stop = mlx4_en_close, | |
1024 | .ndo_start_xmit = mlx4_en_xmit, | |
f813cad8 | 1025 | .ndo_select_queue = mlx4_en_select_queue, |
3addc568 | 1026 | .ndo_get_stats = mlx4_en_get_stats, |
afc4b13d | 1027 | .ndo_set_rx_mode = mlx4_en_set_multicast, |
3addc568 | 1028 | .ndo_set_mac_address = mlx4_en_set_mac, |
52255bbe | 1029 | .ndo_validate_addr = eth_validate_addr, |
3addc568 SH |
1030 | .ndo_change_mtu = mlx4_en_change_mtu, |
1031 | .ndo_tx_timeout = mlx4_en_tx_timeout, | |
3addc568 SH |
1032 | .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, |
1033 | .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, | |
1034 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1035 | .ndo_poll_controller = mlx4_en_netpoll, | |
1036 | #endif | |
60d6fe99 | 1037 | .ndo_set_features = mlx4_en_set_features, |
3addc568 SH |
1038 | }; |
1039 | ||
c27a02cd YP |
1040 | int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, |
1041 | struct mlx4_en_port_profile *prof) | |
1042 | { | |
1043 | struct net_device *dev; | |
1044 | struct mlx4_en_priv *priv; | |
1045 | int i; | |
1046 | int err; | |
1047 | ||
f1593d22 TH |
1048 | dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv), |
1049 | prof->tx_ring_num, prof->rx_ring_num); | |
c27a02cd YP |
1050 | if (dev == NULL) { |
1051 | mlx4_err(mdev, "Net device allocation failed\n"); | |
1052 | return -ENOMEM; | |
1053 | } | |
1054 | ||
1055 | SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev); | |
741a00be | 1056 | dev->dev_id = port - 1; |
c27a02cd YP |
1057 | |
1058 | /* | |
1059 | * Initialize driver private data | |
1060 | */ | |
1061 | ||
1062 | priv = netdev_priv(dev); | |
1063 | memset(priv, 0, sizeof(struct mlx4_en_priv)); | |
1064 | priv->dev = dev; | |
1065 | priv->mdev = mdev; | |
1066 | priv->prof = prof; | |
1067 | priv->port = port; | |
1068 | priv->port_up = false; | |
c27a02cd | 1069 | priv->flags = prof->flags; |
60d6fe99 AV |
1070 | priv->ctrl_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE | |
1071 | MLX4_WQE_CTRL_SOLICITED); | |
c27a02cd YP |
1072 | priv->tx_ring_num = prof->tx_ring_num; |
1073 | priv->rx_ring_num = prof->rx_ring_num; | |
c27a02cd YP |
1074 | priv->mac_index = -1; |
1075 | priv->msg_enable = MLX4_EN_MSG_LEVEL; | |
1076 | spin_lock_init(&priv->stats_lock); | |
1077 | INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast); | |
1078 | INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac); | |
c27a02cd YP |
1079 | INIT_WORK(&priv->watchdog_task, mlx4_en_restart); |
1080 | INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate); | |
1081 | INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats); | |
1082 | ||
1083 | /* Query for default mac and max mtu */ | |
1084 | priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; | |
1085 | priv->mac = mdev->dev->caps.def_mac[priv->port]; | |
1086 | if (ILLEGAL_MAC(priv->mac)) { | |
453a6082 | 1087 | en_err(priv, "Port: %d, invalid mac burned: 0x%llx, quiting\n", |
c27a02cd YP |
1088 | priv->port, priv->mac); |
1089 | err = -EINVAL; | |
1090 | goto out; | |
1091 | } | |
1092 | ||
1093 | priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + | |
1094 | DS_SIZE * MLX4_EN_MAX_RX_FRAGS); | |
1095 | err = mlx4_en_alloc_resources(priv); | |
1096 | if (err) | |
1097 | goto out; | |
1098 | ||
c27a02cd YP |
1099 | /* Allocate page for receive rings */ |
1100 | err = mlx4_alloc_hwq_res(mdev->dev, &priv->res, | |
1101 | MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE); | |
1102 | if (err) { | |
453a6082 | 1103 | en_err(priv, "Failed to allocate page for rx qps\n"); |
c27a02cd YP |
1104 | goto out; |
1105 | } | |
1106 | priv->allocated = 1; | |
1107 | ||
c27a02cd YP |
1108 | /* |
1109 | * Initialize netdev entry points | |
1110 | */ | |
3addc568 | 1111 | dev->netdev_ops = &mlx4_netdev_ops; |
c27a02cd | 1112 | dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT; |
1eb63a28 BH |
1113 | netif_set_real_num_tx_queues(dev, priv->tx_ring_num); |
1114 | netif_set_real_num_rx_queues(dev, priv->rx_ring_num); | |
3addc568 | 1115 | |
c27a02cd YP |
1116 | SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops); |
1117 | ||
1118 | /* Set defualt MAC */ | |
1119 | dev->addr_len = ETH_ALEN; | |
8bf2e58f YP |
1120 | for (i = 0; i < ETH_ALEN; i++) { |
1121 | dev->dev_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); | |
1122 | dev->perm_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); | |
1123 | } | |
c27a02cd YP |
1124 | |
1125 | /* | |
1126 | * Set driver features | |
1127 | */ | |
c8c64cff MM |
1128 | dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
1129 | if (mdev->LSO_support) | |
1130 | dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6; | |
1131 | ||
1132 | dev->vlan_features = dev->hw_features; | |
1133 | ||
ad86107f | 1134 | dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_RXHASH; |
c8c64cff MM |
1135 | dev->features = dev->hw_features | NETIF_F_HIGHDMA | |
1136 | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | | |
1137 | NETIF_F_HW_VLAN_FILTER; | |
60d6fe99 | 1138 | dev->hw_features |= NETIF_F_LOOPBACK; |
c27a02cd YP |
1139 | |
1140 | mdev->pndev[port] = dev; | |
1141 | ||
1142 | netif_carrier_off(dev); | |
1143 | err = register_netdev(dev); | |
1144 | if (err) { | |
453a6082 | 1145 | en_err(priv, "Netdev registration failed for port %d\n", port); |
c27a02cd YP |
1146 | goto out; |
1147 | } | |
4234144f | 1148 | priv->registered = 1; |
453a6082 YP |
1149 | |
1150 | en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num); | |
1151 | en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); | |
1152 | ||
90822265 YP |
1153 | /* Configure port */ |
1154 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
1155 | MLX4_EN_MIN_MTU, | |
1156 | 0, 0, 0, 0); | |
1157 | if (err) { | |
1158 | en_err(priv, "Failed setting port general configurations " | |
1159 | "for port %d, with error %d\n", priv->port, err); | |
1160 | goto out; | |
1161 | } | |
1162 | ||
1163 | /* Init port */ | |
1164 | en_warn(priv, "Initializing port\n"); | |
1165 | err = mlx4_INIT_PORT(mdev->dev, priv->port); | |
1166 | if (err) { | |
1167 | en_err(priv, "Failed Initializing port\n"); | |
1168 | goto out; | |
1169 | } | |
39f17b44 | 1170 | mlx4_en_set_default_moderation(priv); |
c27a02cd YP |
1171 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); |
1172 | return 0; | |
1173 | ||
1174 | out: | |
1175 | mlx4_en_destroy_netdev(dev); | |
1176 | return err; | |
1177 | } | |
1178 |