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