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225c7b1f RD |
1 | /* |
2 | * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. | |
51a379d0 | 3 | * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. |
225c7b1f RD |
4 | * |
5 | * This software is available to you under a choice of one of two | |
6 | * licenses. You may choose to be licensed under the terms of the GNU | |
7 | * General Public License (GPL) Version 2, available from the file | |
8 | * COPYING in the main directory of this source tree, or the | |
9 | * OpenIB.org BSD license below: | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or | |
12 | * without modification, are permitted provided that the following | |
13 | * conditions are met: | |
14 | * | |
15 | * - Redistributions of source code must retain the above | |
16 | * copyright notice, this list of conditions and the following | |
17 | * disclaimer. | |
18 | * | |
19 | * - Redistributions in binary form must reproduce the above | |
20 | * copyright notice, this list of conditions and the following | |
21 | * disclaimer in the documentation and/or other materials | |
22 | * provided with the distribution. | |
23 | * | |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
31 | * SOFTWARE. | |
32 | */ | |
33 | ||
34 | #include <linux/module.h> | |
35 | #include <linux/init.h> | |
5a0e3ad6 | 36 | #include <linux/slab.h> |
225c7b1f | 37 | #include <linux/errno.h> |
fa417f7b EC |
38 | #include <linux/netdevice.h> |
39 | #include <linux/inetdevice.h> | |
40 | #include <linux/rtnetlink.h> | |
4c3eb3ca | 41 | #include <linux/if_vlan.h> |
225c7b1f RD |
42 | |
43 | #include <rdma/ib_smi.h> | |
44 | #include <rdma/ib_user_verbs.h> | |
fa417f7b | 45 | #include <rdma/ib_addr.h> |
225c7b1f RD |
46 | |
47 | #include <linux/mlx4/driver.h> | |
48 | #include <linux/mlx4/cmd.h> | |
49 | ||
50 | #include "mlx4_ib.h" | |
51 | #include "user.h" | |
52 | ||
b1d8eb5a | 53 | #define DRV_NAME MLX4_IB_DRV_NAME |
068c4ea1 JM |
54 | #define DRV_VERSION "1.0" |
55 | #define DRV_RELDATE "April 4, 2008" | |
225c7b1f RD |
56 | |
57 | MODULE_AUTHOR("Roland Dreier"); | |
58 | MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); | |
59 | MODULE_LICENSE("Dual BSD/GPL"); | |
60 | MODULE_VERSION(DRV_VERSION); | |
61 | ||
68f3948d | 62 | static const char mlx4_ib_version[] = |
225c7b1f RD |
63 | DRV_NAME ": Mellanox ConnectX InfiniBand driver v" |
64 | DRV_VERSION " (" DRV_RELDATE ")\n"; | |
65 | ||
fa417f7b EC |
66 | struct update_gid_work { |
67 | struct work_struct work; | |
68 | union ib_gid gids[128]; | |
69 | struct mlx4_ib_dev *dev; | |
70 | int port; | |
71 | }; | |
72 | ||
73 | static struct workqueue_struct *wq; | |
74 | ||
225c7b1f RD |
75 | static void init_query_mad(struct ib_smp *mad) |
76 | { | |
77 | mad->base_version = 1; | |
78 | mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
79 | mad->class_version = 1; | |
80 | mad->method = IB_MGMT_METHOD_GET; | |
81 | } | |
82 | ||
4c3eb3ca EC |
83 | static union ib_gid zgid; |
84 | ||
225c7b1f RD |
85 | static int mlx4_ib_query_device(struct ib_device *ibdev, |
86 | struct ib_device_attr *props) | |
87 | { | |
88 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
89 | struct ib_smp *in_mad = NULL; | |
90 | struct ib_smp *out_mad = NULL; | |
91 | int err = -ENOMEM; | |
92 | ||
93 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
94 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
95 | if (!in_mad || !out_mad) | |
96 | goto out; | |
97 | ||
98 | init_query_mad(in_mad); | |
99 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
100 | ||
101 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
102 | if (err) | |
103 | goto out; | |
104 | ||
105 | memset(props, 0, sizeof *props); | |
106 | ||
107 | props->fw_ver = dev->dev->caps.fw_ver; | |
108 | props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | | |
109 | IB_DEVICE_PORT_ACTIVE_EVENT | | |
110 | IB_DEVICE_SYS_IMAGE_GUID | | |
521e575b RL |
111 | IB_DEVICE_RC_RNR_NAK_GEN | |
112 | IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; | |
225c7b1f RD |
113 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR) |
114 | props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; | |
115 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) | |
116 | props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; | |
117 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM) | |
118 | props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; | |
119 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) | |
120 | props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; | |
8ff095ec EC |
121 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) |
122 | props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; | |
417608c2 | 123 | if (dev->dev->caps.max_gso_sz && dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH) |
b832be1e | 124 | props->device_cap_flags |= IB_DEVICE_UD_TSO; |
95d04f07 RD |
125 | if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) |
126 | props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; | |
127 | if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) && | |
128 | (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) && | |
129 | (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR)) | |
130 | props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; | |
0a1405da SH |
131 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) |
132 | props->device_cap_flags |= IB_DEVICE_XRC; | |
225c7b1f RD |
133 | |
134 | props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & | |
135 | 0xffffff; | |
136 | props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); | |
137 | props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); | |
138 | memcpy(&props->sys_image_guid, out_mad->data + 4, 8); | |
139 | ||
140 | props->max_mr_size = ~0ull; | |
141 | props->page_size_cap = dev->dev->caps.page_size_cap; | |
142 | props->max_qp = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps; | |
fc2d0044 | 143 | props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE; |
225c7b1f RD |
144 | props->max_sge = min(dev->dev->caps.max_sq_sg, |
145 | dev->dev->caps.max_rq_sg); | |
146 | props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs; | |
147 | props->max_cqe = dev->dev->caps.max_cqes; | |
148 | props->max_mr = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws; | |
149 | props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; | |
150 | props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; | |
151 | props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; | |
152 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; | |
153 | props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs; | |
c8681f14 | 154 | props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; |
225c7b1f | 155 | props->max_srq_sge = dev->dev->caps.max_srq_sge; |
5a0fd094 | 156 | props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES; |
225c7b1f RD |
157 | props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; |
158 | props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? | |
159 | IB_ATOMIC_HCA : IB_ATOMIC_NONE; | |
47e956b2 | 160 | props->masked_atomic_cap = props->atomic_cap; |
5ae2a7a8 | 161 | props->max_pkeys = dev->dev->caps.pkey_table_len[1]; |
225c7b1f RD |
162 | props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; |
163 | props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; | |
164 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * | |
165 | props->max_mcast_grp; | |
a5bbe892 | 166 | props->max_map_per_fmr = dev->dev->caps.max_fmr_maps; |
225c7b1f RD |
167 | |
168 | out: | |
169 | kfree(in_mad); | |
170 | kfree(out_mad); | |
171 | ||
172 | return err; | |
173 | } | |
174 | ||
fa417f7b EC |
175 | static enum rdma_link_layer |
176 | mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num) | |
225c7b1f | 177 | { |
fa417f7b | 178 | struct mlx4_dev *dev = to_mdev(device)->dev; |
225c7b1f | 179 | |
65dab25d | 180 | return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ? |
fa417f7b EC |
181 | IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET; |
182 | } | |
225c7b1f | 183 | |
fa417f7b | 184 | static int ib_link_query_port(struct ib_device *ibdev, u8 port, |
a9c766bb | 185 | struct ib_port_attr *props) |
fa417f7b | 186 | { |
a9c766bb OG |
187 | struct ib_smp *in_mad = NULL; |
188 | struct ib_smp *out_mad = NULL; | |
a5e12dff | 189 | int ext_active_speed; |
a9c766bb OG |
190 | int err = -ENOMEM; |
191 | ||
192 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
193 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
194 | if (!in_mad || !out_mad) | |
195 | goto out; | |
196 | ||
197 | init_query_mad(in_mad); | |
198 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
199 | in_mad->attr_mod = cpu_to_be32(port); | |
200 | ||
201 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, | |
202 | in_mad, out_mad); | |
203 | if (err) | |
204 | goto out; | |
205 | ||
a5e12dff | 206 | |
225c7b1f RD |
207 | props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); |
208 | props->lmc = out_mad->data[34] & 0x7; | |
209 | props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); | |
210 | props->sm_sl = out_mad->data[36] & 0xf; | |
211 | props->state = out_mad->data[32] & 0xf; | |
212 | props->phys_state = out_mad->data[33] >> 4; | |
213 | props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); | |
5ae2a7a8 | 214 | props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; |
149983af | 215 | props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; |
5ae2a7a8 | 216 | props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; |
225c7b1f RD |
217 | props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); |
218 | props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); | |
219 | props->active_width = out_mad->data[31] & 0xf; | |
220 | props->active_speed = out_mad->data[35] >> 4; | |
221 | props->max_mtu = out_mad->data[41] & 0xf; | |
222 | props->active_mtu = out_mad->data[36] >> 4; | |
223 | props->subnet_timeout = out_mad->data[51] & 0x1f; | |
224 | props->max_vl_num = out_mad->data[37] >> 4; | |
225 | props->init_type_reply = out_mad->data[41] >> 4; | |
226 | ||
a5e12dff MA |
227 | /* Check if extended speeds (EDR/FDR/...) are supported */ |
228 | if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { | |
229 | ext_active_speed = out_mad->data[62] >> 4; | |
230 | ||
231 | switch (ext_active_speed) { | |
232 | case 1: | |
2e96691c | 233 | props->active_speed = IB_SPEED_FDR; |
a5e12dff MA |
234 | break; |
235 | case 2: | |
2e96691c | 236 | props->active_speed = IB_SPEED_EDR; |
a5e12dff MA |
237 | break; |
238 | } | |
239 | } | |
240 | ||
241 | /* If reported active speed is QDR, check if is FDR-10 */ | |
2e96691c | 242 | if (props->active_speed == IB_SPEED_QDR) { |
8154c07f OG |
243 | init_query_mad(in_mad); |
244 | in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO; | |
245 | in_mad->attr_mod = cpu_to_be32(port); | |
246 | ||
247 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, | |
248 | NULL, NULL, in_mad, out_mad); | |
249 | if (err) | |
bf6b47de | 250 | goto out; |
8154c07f OG |
251 | |
252 | /* Checking LinkSpeedActive for FDR-10 */ | |
253 | if (out_mad->data[15] & 0x1) | |
254 | props->active_speed = IB_SPEED_FDR10; | |
a5e12dff | 255 | } |
d2ef4068 OG |
256 | |
257 | /* Avoid wrong speed value returned by FW if the IB link is down. */ | |
258 | if (props->state == IB_PORT_DOWN) | |
259 | props->active_speed = IB_SPEED_SDR; | |
260 | ||
a9c766bb OG |
261 | out: |
262 | kfree(in_mad); | |
263 | kfree(out_mad); | |
264 | return err; | |
fa417f7b EC |
265 | } |
266 | ||
267 | static u8 state_to_phys_state(enum ib_port_state state) | |
268 | { | |
269 | return state == IB_PORT_ACTIVE ? 5 : 3; | |
270 | } | |
271 | ||
272 | static int eth_link_query_port(struct ib_device *ibdev, u8 port, | |
a9c766bb | 273 | struct ib_port_attr *props) |
fa417f7b | 274 | { |
a9c766bb OG |
275 | |
276 | struct mlx4_ib_dev *mdev = to_mdev(ibdev); | |
277 | struct mlx4_ib_iboe *iboe = &mdev->iboe; | |
fa417f7b EC |
278 | struct net_device *ndev; |
279 | enum ib_mtu tmp; | |
a9c766bb OG |
280 | struct mlx4_cmd_mailbox *mailbox; |
281 | int err = 0; | |
282 | ||
283 | mailbox = mlx4_alloc_cmd_mailbox(mdev->dev); | |
284 | if (IS_ERR(mailbox)) | |
285 | return PTR_ERR(mailbox); | |
fa417f7b | 286 | |
a9c766bb OG |
287 | err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0, |
288 | MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B, | |
289 | MLX4_CMD_WRAPPED); | |
290 | if (err) | |
291 | goto out; | |
292 | ||
293 | props->active_width = (((u8 *)mailbox->buf)[5] == 0x40) ? | |
294 | IB_WIDTH_4X : IB_WIDTH_1X; | |
2e96691c | 295 | props->active_speed = IB_SPEED_QDR; |
fa417f7b | 296 | props->port_cap_flags = IB_PORT_CM_SUP; |
a9c766bb OG |
297 | props->gid_tbl_len = mdev->dev->caps.gid_table_len[port]; |
298 | props->max_msg_sz = mdev->dev->caps.max_msg_sz; | |
fa417f7b | 299 | props->pkey_tbl_len = 1; |
bcacb897 | 300 | props->max_mtu = IB_MTU_4096; |
a9c766bb | 301 | props->max_vl_num = 2; |
fa417f7b EC |
302 | props->state = IB_PORT_DOWN; |
303 | props->phys_state = state_to_phys_state(props->state); | |
304 | props->active_mtu = IB_MTU_256; | |
305 | spin_lock(&iboe->lock); | |
306 | ndev = iboe->netdevs[port - 1]; | |
307 | if (!ndev) | |
a9c766bb | 308 | goto out_unlock; |
fa417f7b EC |
309 | |
310 | tmp = iboe_get_mtu(ndev->mtu); | |
311 | props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256; | |
312 | ||
21d60609 | 313 | props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ? |
fa417f7b EC |
314 | IB_PORT_ACTIVE : IB_PORT_DOWN; |
315 | props->phys_state = state_to_phys_state(props->state); | |
a9c766bb | 316 | out_unlock: |
fa417f7b | 317 | spin_unlock(&iboe->lock); |
a9c766bb OG |
318 | out: |
319 | mlx4_free_cmd_mailbox(mdev->dev, mailbox); | |
320 | return err; | |
fa417f7b EC |
321 | } |
322 | ||
323 | static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, | |
324 | struct ib_port_attr *props) | |
325 | { | |
a9c766bb | 326 | int err; |
fa417f7b EC |
327 | |
328 | memset(props, 0, sizeof *props); | |
329 | ||
fa417f7b | 330 | err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ? |
a9c766bb OG |
331 | ib_link_query_port(ibdev, port, props) : |
332 | eth_link_query_port(ibdev, port, props); | |
225c7b1f RD |
333 | |
334 | return err; | |
335 | } | |
336 | ||
fa417f7b EC |
337 | static int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, |
338 | union ib_gid *gid) | |
225c7b1f RD |
339 | { |
340 | struct ib_smp *in_mad = NULL; | |
341 | struct ib_smp *out_mad = NULL; | |
342 | int err = -ENOMEM; | |
343 | ||
344 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
345 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
346 | if (!in_mad || !out_mad) | |
347 | goto out; | |
348 | ||
349 | init_query_mad(in_mad); | |
350 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
351 | in_mad->attr_mod = cpu_to_be32(port); | |
352 | ||
353 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
354 | if (err) | |
355 | goto out; | |
356 | ||
357 | memcpy(gid->raw, out_mad->data + 8, 8); | |
358 | ||
359 | init_query_mad(in_mad); | |
360 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; | |
361 | in_mad->attr_mod = cpu_to_be32(index / 8); | |
362 | ||
363 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
364 | if (err) | |
365 | goto out; | |
366 | ||
367 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); | |
368 | ||
369 | out: | |
370 | kfree(in_mad); | |
371 | kfree(out_mad); | |
372 | return err; | |
373 | } | |
374 | ||
fa417f7b EC |
375 | static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index, |
376 | union ib_gid *gid) | |
377 | { | |
378 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
379 | ||
380 | *gid = dev->iboe.gid_table[port - 1][index]; | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, | |
386 | union ib_gid *gid) | |
387 | { | |
388 | if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND) | |
389 | return __mlx4_ib_query_gid(ibdev, port, index, gid); | |
390 | else | |
391 | return iboe_query_gid(ibdev, port, index, gid); | |
392 | } | |
393 | ||
225c7b1f RD |
394 | static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, |
395 | u16 *pkey) | |
396 | { | |
397 | struct ib_smp *in_mad = NULL; | |
398 | struct ib_smp *out_mad = NULL; | |
399 | int err = -ENOMEM; | |
400 | ||
401 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
402 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
403 | if (!in_mad || !out_mad) | |
404 | goto out; | |
405 | ||
406 | init_query_mad(in_mad); | |
407 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; | |
408 | in_mad->attr_mod = cpu_to_be32(index / 32); | |
409 | ||
410 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
411 | if (err) | |
412 | goto out; | |
413 | ||
414 | *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); | |
415 | ||
416 | out: | |
417 | kfree(in_mad); | |
418 | kfree(out_mad); | |
419 | return err; | |
420 | } | |
421 | ||
422 | static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, | |
423 | struct ib_device_modify *props) | |
424 | { | |
d0d68b86 | 425 | struct mlx4_cmd_mailbox *mailbox; |
df7fba66 | 426 | unsigned long flags; |
d0d68b86 | 427 | |
225c7b1f RD |
428 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) |
429 | return -EOPNOTSUPP; | |
430 | ||
d0d68b86 JM |
431 | if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) |
432 | return 0; | |
433 | ||
df7fba66 | 434 | spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags); |
d0d68b86 | 435 | memcpy(ibdev->node_desc, props->node_desc, 64); |
df7fba66 | 436 | spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags); |
d0d68b86 JM |
437 | |
438 | /* | |
439 | * If possible, pass node desc to FW, so it can generate | |
440 | * a 144 trap. If cmd fails, just ignore. | |
441 | */ | |
442 | mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev); | |
443 | if (IS_ERR(mailbox)) | |
444 | return 0; | |
445 | ||
446 | memset(mailbox->buf, 0, 256); | |
447 | memcpy(mailbox->buf, props->node_desc, 64); | |
448 | mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0, | |
f9baff50 | 449 | MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); |
d0d68b86 JM |
450 | |
451 | mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox); | |
225c7b1f RD |
452 | |
453 | return 0; | |
454 | } | |
455 | ||
456 | static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, | |
457 | u32 cap_mask) | |
458 | { | |
459 | struct mlx4_cmd_mailbox *mailbox; | |
460 | int err; | |
fa417f7b | 461 | u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH; |
225c7b1f RD |
462 | |
463 | mailbox = mlx4_alloc_cmd_mailbox(dev->dev); | |
464 | if (IS_ERR(mailbox)) | |
465 | return PTR_ERR(mailbox); | |
466 | ||
467 | memset(mailbox->buf, 0, 256); | |
5ae2a7a8 RD |
468 | |
469 | if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { | |
470 | *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; | |
471 | ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); | |
472 | } else { | |
473 | ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; | |
474 | ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); | |
475 | } | |
225c7b1f | 476 | |
fa417f7b | 477 | err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT, |
f9baff50 | 478 | MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); |
225c7b1f RD |
479 | |
480 | mlx4_free_cmd_mailbox(dev->dev, mailbox); | |
481 | return err; | |
482 | } | |
483 | ||
484 | static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, | |
485 | struct ib_port_modify *props) | |
486 | { | |
487 | struct ib_port_attr attr; | |
488 | u32 cap_mask; | |
489 | int err; | |
490 | ||
491 | mutex_lock(&to_mdev(ibdev)->cap_mask_mutex); | |
492 | ||
493 | err = mlx4_ib_query_port(ibdev, port, &attr); | |
494 | if (err) | |
495 | goto out; | |
496 | ||
497 | cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & | |
498 | ~props->clr_port_cap_mask; | |
499 | ||
500 | err = mlx4_SET_PORT(to_mdev(ibdev), port, | |
501 | !!(mask & IB_PORT_RESET_QKEY_CNTR), | |
502 | cap_mask); | |
503 | ||
504 | out: | |
505 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); | |
506 | return err; | |
507 | } | |
508 | ||
509 | static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev, | |
510 | struct ib_udata *udata) | |
511 | { | |
512 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
513 | struct mlx4_ib_ucontext *context; | |
514 | struct mlx4_ib_alloc_ucontext_resp resp; | |
515 | int err; | |
516 | ||
3b4a8cd5 JM |
517 | if (!dev->ib_active) |
518 | return ERR_PTR(-EAGAIN); | |
519 | ||
225c7b1f RD |
520 | resp.qp_tab_size = dev->dev->caps.num_qps; |
521 | resp.bf_reg_size = dev->dev->caps.bf_reg_size; | |
522 | resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; | |
523 | ||
524 | context = kmalloc(sizeof *context, GFP_KERNEL); | |
525 | if (!context) | |
526 | return ERR_PTR(-ENOMEM); | |
527 | ||
528 | err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); | |
529 | if (err) { | |
530 | kfree(context); | |
531 | return ERR_PTR(err); | |
532 | } | |
533 | ||
534 | INIT_LIST_HEAD(&context->db_page_list); | |
535 | mutex_init(&context->db_page_mutex); | |
536 | ||
537 | err = ib_copy_to_udata(udata, &resp, sizeof resp); | |
538 | if (err) { | |
539 | mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); | |
540 | kfree(context); | |
541 | return ERR_PTR(-EFAULT); | |
542 | } | |
543 | ||
544 | return &context->ibucontext; | |
545 | } | |
546 | ||
547 | static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) | |
548 | { | |
549 | struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); | |
550 | ||
551 | mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); | |
552 | kfree(context); | |
553 | ||
554 | return 0; | |
555 | } | |
556 | ||
557 | static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
558 | { | |
559 | struct mlx4_ib_dev *dev = to_mdev(context->device); | |
560 | ||
561 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
562 | return -EINVAL; | |
563 | ||
564 | if (vma->vm_pgoff == 0) { | |
565 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
566 | ||
567 | if (io_remap_pfn_range(vma, vma->vm_start, | |
568 | to_mucontext(context)->uar.pfn, | |
569 | PAGE_SIZE, vma->vm_page_prot)) | |
570 | return -EAGAIN; | |
571 | } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) { | |
e1d60ec6 | 572 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); |
225c7b1f RD |
573 | |
574 | if (io_remap_pfn_range(vma, vma->vm_start, | |
575 | to_mucontext(context)->uar.pfn + | |
576 | dev->dev->caps.num_uars, | |
577 | PAGE_SIZE, vma->vm_page_prot)) | |
578 | return -EAGAIN; | |
579 | } else | |
580 | return -EINVAL; | |
581 | ||
582 | return 0; | |
583 | } | |
584 | ||
585 | static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev, | |
586 | struct ib_ucontext *context, | |
587 | struct ib_udata *udata) | |
588 | { | |
589 | struct mlx4_ib_pd *pd; | |
590 | int err; | |
591 | ||
592 | pd = kmalloc(sizeof *pd, GFP_KERNEL); | |
593 | if (!pd) | |
594 | return ERR_PTR(-ENOMEM); | |
595 | ||
596 | err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); | |
597 | if (err) { | |
598 | kfree(pd); | |
599 | return ERR_PTR(err); | |
600 | } | |
601 | ||
602 | if (context) | |
603 | if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) { | |
604 | mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); | |
605 | kfree(pd); | |
606 | return ERR_PTR(-EFAULT); | |
607 | } | |
608 | ||
609 | return &pd->ibpd; | |
610 | } | |
611 | ||
612 | static int mlx4_ib_dealloc_pd(struct ib_pd *pd) | |
613 | { | |
614 | mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); | |
615 | kfree(pd); | |
616 | ||
617 | return 0; | |
618 | } | |
619 | ||
012a8ff5 SH |
620 | static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev, |
621 | struct ib_ucontext *context, | |
622 | struct ib_udata *udata) | |
623 | { | |
624 | struct mlx4_ib_xrcd *xrcd; | |
625 | int err; | |
626 | ||
627 | if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)) | |
628 | return ERR_PTR(-ENOSYS); | |
629 | ||
630 | xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL); | |
631 | if (!xrcd) | |
632 | return ERR_PTR(-ENOMEM); | |
633 | ||
634 | err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn); | |
635 | if (err) | |
636 | goto err1; | |
637 | ||
638 | xrcd->pd = ib_alloc_pd(ibdev); | |
639 | if (IS_ERR(xrcd->pd)) { | |
640 | err = PTR_ERR(xrcd->pd); | |
641 | goto err2; | |
642 | } | |
643 | ||
644 | xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0); | |
645 | if (IS_ERR(xrcd->cq)) { | |
646 | err = PTR_ERR(xrcd->cq); | |
647 | goto err3; | |
648 | } | |
649 | ||
650 | return &xrcd->ibxrcd; | |
651 | ||
652 | err3: | |
653 | ib_dealloc_pd(xrcd->pd); | |
654 | err2: | |
655 | mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn); | |
656 | err1: | |
657 | kfree(xrcd); | |
658 | return ERR_PTR(err); | |
659 | } | |
660 | ||
661 | static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd) | |
662 | { | |
663 | ib_destroy_cq(to_mxrcd(xrcd)->cq); | |
664 | ib_dealloc_pd(to_mxrcd(xrcd)->pd); | |
665 | mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn); | |
666 | kfree(xrcd); | |
667 | ||
668 | return 0; | |
669 | } | |
670 | ||
fa417f7b EC |
671 | static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid) |
672 | { | |
673 | struct mlx4_ib_qp *mqp = to_mqp(ibqp); | |
674 | struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); | |
675 | struct mlx4_ib_gid_entry *ge; | |
676 | ||
677 | ge = kzalloc(sizeof *ge, GFP_KERNEL); | |
678 | if (!ge) | |
679 | return -ENOMEM; | |
680 | ||
681 | ge->gid = *gid; | |
682 | if (mlx4_ib_add_mc(mdev, mqp, gid)) { | |
683 | ge->port = mqp->port; | |
684 | ge->added = 1; | |
685 | } | |
686 | ||
687 | mutex_lock(&mqp->mutex); | |
688 | list_add_tail(&ge->list, &mqp->gid_list); | |
689 | mutex_unlock(&mqp->mutex); | |
690 | ||
691 | return 0; | |
692 | } | |
693 | ||
694 | int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, | |
695 | union ib_gid *gid) | |
696 | { | |
697 | u8 mac[6]; | |
698 | struct net_device *ndev; | |
699 | int ret = 0; | |
700 | ||
701 | if (!mqp->port) | |
702 | return 0; | |
703 | ||
704 | spin_lock(&mdev->iboe.lock); | |
705 | ndev = mdev->iboe.netdevs[mqp->port - 1]; | |
706 | if (ndev) | |
707 | dev_hold(ndev); | |
708 | spin_unlock(&mdev->iboe.lock); | |
709 | ||
710 | if (ndev) { | |
711 | rdma_get_mcast_mac((struct in6_addr *)gid, mac); | |
712 | rtnl_lock(); | |
713 | dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac); | |
714 | ret = 1; | |
715 | rtnl_unlock(); | |
716 | dev_put(ndev); | |
717 | } | |
718 | ||
719 | return ret; | |
720 | } | |
721 | ||
0ff1fb65 HHZ |
722 | struct mlx4_ib_steering { |
723 | struct list_head list; | |
724 | u64 reg_id; | |
725 | union ib_gid gid; | |
726 | }; | |
727 | ||
225c7b1f RD |
728 | static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
729 | { | |
fa417f7b EC |
730 | int err; |
731 | struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); | |
732 | struct mlx4_ib_qp *mqp = to_mqp(ibqp); | |
0ff1fb65 HHZ |
733 | u64 reg_id; |
734 | struct mlx4_ib_steering *ib_steering = NULL; | |
735 | ||
736 | if (mdev->dev->caps.steering_mode == | |
737 | MLX4_STEERING_MODE_DEVICE_MANAGED) { | |
738 | ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL); | |
739 | if (!ib_steering) | |
740 | return -ENOMEM; | |
741 | } | |
fa417f7b | 742 | |
0ff1fb65 HHZ |
743 | err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port, |
744 | !!(mqp->flags & | |
745 | MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), | |
746 | MLX4_PROT_IB_IPV6, ®_id); | |
fa417f7b | 747 | if (err) |
0ff1fb65 | 748 | goto err_malloc; |
fa417f7b EC |
749 | |
750 | err = add_gid_entry(ibqp, gid); | |
751 | if (err) | |
752 | goto err_add; | |
753 | ||
0ff1fb65 HHZ |
754 | if (ib_steering) { |
755 | memcpy(ib_steering->gid.raw, gid->raw, 16); | |
756 | ib_steering->reg_id = reg_id; | |
757 | mutex_lock(&mqp->mutex); | |
758 | list_add(&ib_steering->list, &mqp->steering_rules); | |
759 | mutex_unlock(&mqp->mutex); | |
760 | } | |
fa417f7b EC |
761 | return 0; |
762 | ||
763 | err_add: | |
0ff1fb65 HHZ |
764 | mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, |
765 | MLX4_PROT_IB_IPV6, reg_id); | |
766 | err_malloc: | |
767 | kfree(ib_steering); | |
768 | ||
fa417f7b EC |
769 | return err; |
770 | } | |
771 | ||
772 | static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw) | |
773 | { | |
774 | struct mlx4_ib_gid_entry *ge; | |
775 | struct mlx4_ib_gid_entry *tmp; | |
776 | struct mlx4_ib_gid_entry *ret = NULL; | |
777 | ||
778 | list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) { | |
779 | if (!memcmp(raw, ge->gid.raw, 16)) { | |
780 | ret = ge; | |
781 | break; | |
782 | } | |
783 | } | |
784 | ||
785 | return ret; | |
225c7b1f RD |
786 | } |
787 | ||
788 | static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
789 | { | |
fa417f7b EC |
790 | int err; |
791 | struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); | |
792 | struct mlx4_ib_qp *mqp = to_mqp(ibqp); | |
793 | u8 mac[6]; | |
794 | struct net_device *ndev; | |
795 | struct mlx4_ib_gid_entry *ge; | |
0ff1fb65 HHZ |
796 | u64 reg_id = 0; |
797 | ||
798 | if (mdev->dev->caps.steering_mode == | |
799 | MLX4_STEERING_MODE_DEVICE_MANAGED) { | |
800 | struct mlx4_ib_steering *ib_steering; | |
801 | ||
802 | mutex_lock(&mqp->mutex); | |
803 | list_for_each_entry(ib_steering, &mqp->steering_rules, list) { | |
804 | if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) { | |
805 | list_del(&ib_steering->list); | |
806 | break; | |
807 | } | |
808 | } | |
809 | mutex_unlock(&mqp->mutex); | |
810 | if (&ib_steering->list == &mqp->steering_rules) { | |
811 | pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n"); | |
812 | return -EINVAL; | |
813 | } | |
814 | reg_id = ib_steering->reg_id; | |
815 | kfree(ib_steering); | |
816 | } | |
fa417f7b | 817 | |
0ff1fb65 HHZ |
818 | err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, |
819 | MLX4_PROT_IB_IPV6, reg_id); | |
fa417f7b EC |
820 | if (err) |
821 | return err; | |
822 | ||
823 | mutex_lock(&mqp->mutex); | |
824 | ge = find_gid_entry(mqp, gid->raw); | |
825 | if (ge) { | |
826 | spin_lock(&mdev->iboe.lock); | |
827 | ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL; | |
828 | if (ndev) | |
829 | dev_hold(ndev); | |
830 | spin_unlock(&mdev->iboe.lock); | |
831 | rdma_get_mcast_mac((struct in6_addr *)gid, mac); | |
832 | if (ndev) { | |
833 | rtnl_lock(); | |
834 | dev_mc_del(mdev->iboe.netdevs[ge->port - 1], mac); | |
835 | rtnl_unlock(); | |
836 | dev_put(ndev); | |
837 | } | |
838 | list_del(&ge->list); | |
839 | kfree(ge); | |
840 | } else | |
987c8f8f | 841 | pr_warn("could not find mgid entry\n"); |
fa417f7b EC |
842 | |
843 | mutex_unlock(&mqp->mutex); | |
844 | ||
845 | return 0; | |
225c7b1f RD |
846 | } |
847 | ||
848 | static int init_node_data(struct mlx4_ib_dev *dev) | |
849 | { | |
850 | struct ib_smp *in_mad = NULL; | |
851 | struct ib_smp *out_mad = NULL; | |
852 | int err = -ENOMEM; | |
853 | ||
854 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
855 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
856 | if (!in_mad || !out_mad) | |
857 | goto out; | |
858 | ||
859 | init_query_mad(in_mad); | |
860 | in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; | |
861 | ||
862 | err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
863 | if (err) | |
864 | goto out; | |
865 | ||
866 | memcpy(dev->ib_dev.node_desc, out_mad->data, 64); | |
867 | ||
868 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
869 | ||
870 | err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
871 | if (err) | |
872 | goto out; | |
873 | ||
874 | memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); | |
875 | ||
876 | out: | |
877 | kfree(in_mad); | |
878 | kfree(out_mad); | |
879 | return err; | |
880 | } | |
881 | ||
f4e91eb4 TJ |
882 | static ssize_t show_hca(struct device *device, struct device_attribute *attr, |
883 | char *buf) | |
cd9281d8 | 884 | { |
f4e91eb4 TJ |
885 | struct mlx4_ib_dev *dev = |
886 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
cd9281d8 JM |
887 | return sprintf(buf, "MT%d\n", dev->dev->pdev->device); |
888 | } | |
889 | ||
f4e91eb4 TJ |
890 | static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, |
891 | char *buf) | |
cd9281d8 | 892 | { |
f4e91eb4 TJ |
893 | struct mlx4_ib_dev *dev = |
894 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
cd9281d8 JM |
895 | return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32), |
896 | (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, | |
897 | (int) dev->dev->caps.fw_ver & 0xffff); | |
898 | } | |
899 | ||
f4e91eb4 TJ |
900 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, |
901 | char *buf) | |
cd9281d8 | 902 | { |
f4e91eb4 TJ |
903 | struct mlx4_ib_dev *dev = |
904 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
cd9281d8 JM |
905 | return sprintf(buf, "%x\n", dev->dev->rev_id); |
906 | } | |
907 | ||
f4e91eb4 TJ |
908 | static ssize_t show_board(struct device *device, struct device_attribute *attr, |
909 | char *buf) | |
cd9281d8 | 910 | { |
f4e91eb4 TJ |
911 | struct mlx4_ib_dev *dev = |
912 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
913 | return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, | |
914 | dev->dev->board_id); | |
cd9281d8 JM |
915 | } |
916 | ||
f4e91eb4 TJ |
917 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
918 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
919 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
920 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
cd9281d8 | 921 | |
f4e91eb4 TJ |
922 | static struct device_attribute *mlx4_class_attributes[] = { |
923 | &dev_attr_hw_rev, | |
924 | &dev_attr_fw_ver, | |
925 | &dev_attr_hca_type, | |
926 | &dev_attr_board_id | |
cd9281d8 JM |
927 | }; |
928 | ||
4c3eb3ca | 929 | static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev) |
fa417f7b EC |
930 | { |
931 | memcpy(eui, dev->dev_addr, 3); | |
932 | memcpy(eui + 5, dev->dev_addr + 3, 3); | |
4c3eb3ca EC |
933 | if (vlan_id < 0x1000) { |
934 | eui[3] = vlan_id >> 8; | |
935 | eui[4] = vlan_id & 0xff; | |
936 | } else { | |
937 | eui[3] = 0xff; | |
938 | eui[4] = 0xfe; | |
939 | } | |
fa417f7b EC |
940 | eui[0] ^= 2; |
941 | } | |
942 | ||
943 | static void update_gids_task(struct work_struct *work) | |
944 | { | |
945 | struct update_gid_work *gw = container_of(work, struct update_gid_work, work); | |
946 | struct mlx4_cmd_mailbox *mailbox; | |
947 | union ib_gid *gids; | |
948 | int err; | |
949 | struct mlx4_dev *dev = gw->dev->dev; | |
fa417f7b EC |
950 | |
951 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
952 | if (IS_ERR(mailbox)) { | |
987c8f8f | 953 | pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox)); |
fa417f7b EC |
954 | return; |
955 | } | |
956 | ||
957 | gids = mailbox->buf; | |
958 | memcpy(gids, gw->gids, sizeof gw->gids); | |
959 | ||
960 | err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port, | |
f9baff50 JM |
961 | 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, |
962 | MLX4_CMD_NATIVE); | |
fa417f7b | 963 | if (err) |
987c8f8f | 964 | pr_warn("set port command failed\n"); |
fa417f7b EC |
965 | else { |
966 | memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids); | |
00f5ce99 | 967 | mlx4_ib_dispatch_event(gw->dev, gw->port, IB_EVENT_GID_CHANGE); |
fa417f7b EC |
968 | } |
969 | ||
970 | mlx4_free_cmd_mailbox(dev, mailbox); | |
971 | kfree(gw); | |
972 | } | |
973 | ||
974 | static int update_ipv6_gids(struct mlx4_ib_dev *dev, int port, int clear) | |
975 | { | |
976 | struct net_device *ndev = dev->iboe.netdevs[port - 1]; | |
977 | struct update_gid_work *work; | |
4c3eb3ca EC |
978 | struct net_device *tmp; |
979 | int i; | |
980 | u8 *hits; | |
981 | int ret; | |
982 | union ib_gid gid; | |
983 | int free; | |
984 | int found; | |
985 | int need_update = 0; | |
986 | u16 vid; | |
fa417f7b EC |
987 | |
988 | work = kzalloc(sizeof *work, GFP_ATOMIC); | |
989 | if (!work) | |
990 | return -ENOMEM; | |
991 | ||
4c3eb3ca EC |
992 | hits = kzalloc(128, GFP_ATOMIC); |
993 | if (!hits) { | |
994 | ret = -ENOMEM; | |
995 | goto out; | |
996 | } | |
997 | ||
22f4fbd9 ED |
998 | rcu_read_lock(); |
999 | for_each_netdev_rcu(&init_net, tmp) { | |
4c3eb3ca EC |
1000 | if (ndev && (tmp == ndev || rdma_vlan_dev_real_dev(tmp) == ndev)) { |
1001 | gid.global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL); | |
1002 | vid = rdma_vlan_dev_vlan_id(tmp); | |
1003 | mlx4_addrconf_ifid_eui48(&gid.raw[8], vid, ndev); | |
1004 | found = 0; | |
1005 | free = -1; | |
1006 | for (i = 0; i < 128; ++i) { | |
1007 | if (free < 0 && | |
1008 | !memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid)) | |
1009 | free = i; | |
1010 | if (!memcmp(&dev->iboe.gid_table[port - 1][i], &gid, sizeof gid)) { | |
1011 | hits[i] = 1; | |
1012 | found = 1; | |
1013 | break; | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | if (!found) { | |
1018 | if (tmp == ndev && | |
1019 | (memcmp(&dev->iboe.gid_table[port - 1][0], | |
1020 | &gid, sizeof gid) || | |
1021 | !memcmp(&dev->iboe.gid_table[port - 1][0], | |
1022 | &zgid, sizeof gid))) { | |
1023 | dev->iboe.gid_table[port - 1][0] = gid; | |
1024 | ++need_update; | |
1025 | hits[0] = 1; | |
1026 | } else if (free >= 0) { | |
1027 | dev->iboe.gid_table[port - 1][free] = gid; | |
1028 | hits[free] = 1; | |
1029 | ++need_update; | |
1030 | } | |
1031 | } | |
1032 | } | |
fa417f7b | 1033 | } |
22f4fbd9 | 1034 | rcu_read_unlock(); |
4c3eb3ca EC |
1035 | |
1036 | for (i = 0; i < 128; ++i) | |
1037 | if (!hits[i]) { | |
1038 | if (memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid)) | |
1039 | ++need_update; | |
1040 | dev->iboe.gid_table[port - 1][i] = zgid; | |
1041 | } | |
fa417f7b | 1042 | |
4c3eb3ca EC |
1043 | if (need_update) { |
1044 | memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof work->gids); | |
1045 | INIT_WORK(&work->work, update_gids_task); | |
1046 | work->port = port; | |
1047 | work->dev = dev; | |
1048 | queue_work(wq, &work->work); | |
1049 | } else | |
1050 | kfree(work); | |
fa417f7b | 1051 | |
4c3eb3ca | 1052 | kfree(hits); |
fa417f7b | 1053 | return 0; |
4c3eb3ca EC |
1054 | |
1055 | out: | |
1056 | kfree(work); | |
1057 | return ret; | |
fa417f7b EC |
1058 | } |
1059 | ||
1060 | static void handle_en_event(struct mlx4_ib_dev *dev, int port, unsigned long event) | |
1061 | { | |
1062 | switch (event) { | |
1063 | case NETDEV_UP: | |
4c3eb3ca | 1064 | case NETDEV_CHANGEADDR: |
fa417f7b EC |
1065 | update_ipv6_gids(dev, port, 0); |
1066 | break; | |
1067 | ||
1068 | case NETDEV_DOWN: | |
1069 | update_ipv6_gids(dev, port, 1); | |
1070 | dev->iboe.netdevs[port - 1] = NULL; | |
1071 | } | |
1072 | } | |
1073 | ||
1074 | static void netdev_added(struct mlx4_ib_dev *dev, int port) | |
1075 | { | |
1076 | update_ipv6_gids(dev, port, 0); | |
1077 | } | |
1078 | ||
1079 | static void netdev_removed(struct mlx4_ib_dev *dev, int port) | |
1080 | { | |
1081 | update_ipv6_gids(dev, port, 1); | |
1082 | } | |
1083 | ||
1084 | static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event, | |
1085 | void *ptr) | |
1086 | { | |
1087 | struct net_device *dev = ptr; | |
1088 | struct mlx4_ib_dev *ibdev; | |
1089 | struct net_device *oldnd; | |
1090 | struct mlx4_ib_iboe *iboe; | |
1091 | int port; | |
1092 | ||
1093 | if (!net_eq(dev_net(dev), &init_net)) | |
1094 | return NOTIFY_DONE; | |
1095 | ||
1096 | ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb); | |
1097 | iboe = &ibdev->iboe; | |
1098 | ||
1099 | spin_lock(&iboe->lock); | |
1100 | mlx4_foreach_ib_transport_port(port, ibdev->dev) { | |
1101 | oldnd = iboe->netdevs[port - 1]; | |
1102 | iboe->netdevs[port - 1] = | |
0345584e | 1103 | mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port); |
fa417f7b EC |
1104 | if (oldnd != iboe->netdevs[port - 1]) { |
1105 | if (iboe->netdevs[port - 1]) | |
1106 | netdev_added(ibdev, port); | |
1107 | else | |
1108 | netdev_removed(ibdev, port); | |
1109 | } | |
1110 | } | |
1111 | ||
4c3eb3ca EC |
1112 | if (dev == iboe->netdevs[0] || |
1113 | (iboe->netdevs[0] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[0])) | |
fa417f7b | 1114 | handle_en_event(ibdev, 1, event); |
4c3eb3ca EC |
1115 | else if (dev == iboe->netdevs[1] |
1116 | || (iboe->netdevs[1] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[1])) | |
fa417f7b EC |
1117 | handle_en_event(ibdev, 2, event); |
1118 | ||
1119 | spin_unlock(&iboe->lock); | |
1120 | ||
1121 | return NOTIFY_DONE; | |
1122 | } | |
1123 | ||
e605b743 SP |
1124 | static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) |
1125 | { | |
1126 | char name[32]; | |
1127 | int eq_per_port = 0; | |
1128 | int added_eqs = 0; | |
1129 | int total_eqs = 0; | |
1130 | int i, j, eq; | |
1131 | ||
3aac6ff1 SP |
1132 | /* Legacy mode or comp_pool is not large enough */ |
1133 | if (dev->caps.comp_pool == 0 || | |
1134 | dev->caps.num_ports > dev->caps.comp_pool) | |
e605b743 SP |
1135 | return; |
1136 | ||
1137 | eq_per_port = rounddown_pow_of_two(dev->caps.comp_pool/ | |
1138 | dev->caps.num_ports); | |
1139 | ||
1140 | /* Init eq table */ | |
1141 | added_eqs = 0; | |
1142 | mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) | |
1143 | added_eqs += eq_per_port; | |
1144 | ||
1145 | total_eqs = dev->caps.num_comp_vectors + added_eqs; | |
1146 | ||
1147 | ibdev->eq_table = kzalloc(total_eqs * sizeof(int), GFP_KERNEL); | |
1148 | if (!ibdev->eq_table) | |
1149 | return; | |
1150 | ||
1151 | ibdev->eq_added = added_eqs; | |
1152 | ||
1153 | eq = 0; | |
1154 | mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) { | |
1155 | for (j = 0; j < eq_per_port; j++) { | |
1156 | sprintf(name, "mlx4-ib-%d-%d@%s", | |
1157 | i, j, dev->pdev->bus->name); | |
1158 | /* Set IRQ for specific name (per ring) */ | |
d9236c3f AV |
1159 | if (mlx4_assign_eq(dev, name, NULL, |
1160 | &ibdev->eq_table[eq])) { | |
e605b743 SP |
1161 | /* Use legacy (same as mlx4_en driver) */ |
1162 | pr_warn("Can't allocate EQ %d; reverting to legacy\n", eq); | |
1163 | ibdev->eq_table[eq] = | |
1164 | (eq % dev->caps.num_comp_vectors); | |
1165 | } | |
1166 | eq++; | |
1167 | } | |
1168 | } | |
1169 | ||
1170 | /* Fill the reset of the vector with legacy EQ */ | |
1171 | for (i = 0, eq = added_eqs; i < dev->caps.num_comp_vectors; i++) | |
1172 | ibdev->eq_table[eq++] = i; | |
1173 | ||
1174 | /* Advertise the new number of EQs to clients */ | |
1175 | ibdev->ib_dev.num_comp_vectors = total_eqs; | |
1176 | } | |
1177 | ||
1178 | static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) | |
1179 | { | |
1180 | int i; | |
3aac6ff1 SP |
1181 | |
1182 | /* no additional eqs were added */ | |
1183 | if (!ibdev->eq_table) | |
1184 | return; | |
e605b743 SP |
1185 | |
1186 | /* Reset the advertised EQ number */ | |
1187 | ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; | |
1188 | ||
1189 | /* Free only the added eqs */ | |
1190 | for (i = 0; i < ibdev->eq_added; i++) { | |
1191 | /* Don't free legacy eqs if used */ | |
1192 | if (ibdev->eq_table[i] <= dev->caps.num_comp_vectors) | |
1193 | continue; | |
1194 | mlx4_release_eq(dev, ibdev->eq_table[i]); | |
1195 | } | |
1196 | ||
e605b743 | 1197 | kfree(ibdev->eq_table); |
e605b743 SP |
1198 | } |
1199 | ||
225c7b1f RD |
1200 | static void *mlx4_ib_add(struct mlx4_dev *dev) |
1201 | { | |
1202 | struct mlx4_ib_dev *ibdev; | |
22e7ef9c | 1203 | int num_ports = 0; |
035b1032 | 1204 | int i, j; |
fa417f7b EC |
1205 | int err; |
1206 | struct mlx4_ib_iboe *iboe; | |
225c7b1f | 1207 | |
987c8f8f | 1208 | pr_info_once("%s", mlx4_ib_version); |
68f3948d | 1209 | |
8e59d254 | 1210 | if (mlx4_is_mfunc(dev)) { |
987c8f8f | 1211 | pr_warn("IB not yet supported in SRIOV\n"); |
8e59d254 JM |
1212 | return NULL; |
1213 | } | |
1214 | ||
fa417f7b | 1215 | mlx4_foreach_ib_transport_port(i, dev) |
22e7ef9c RD |
1216 | num_ports++; |
1217 | ||
1218 | /* No point in registering a device with no ports... */ | |
1219 | if (num_ports == 0) | |
1220 | return NULL; | |
1221 | ||
225c7b1f RD |
1222 | ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); |
1223 | if (!ibdev) { | |
1224 | dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); | |
1225 | return NULL; | |
1226 | } | |
1227 | ||
fa417f7b EC |
1228 | iboe = &ibdev->iboe; |
1229 | ||
225c7b1f RD |
1230 | if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) |
1231 | goto err_dealloc; | |
1232 | ||
1233 | if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) | |
1234 | goto err_pd; | |
1235 | ||
4979d18f RD |
1236 | ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT, |
1237 | PAGE_SIZE); | |
225c7b1f RD |
1238 | if (!ibdev->uar_map) |
1239 | goto err_uar; | |
26c6bc7b | 1240 | MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); |
225c7b1f | 1241 | |
225c7b1f RD |
1242 | ibdev->dev = dev; |
1243 | ||
1244 | strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); | |
1245 | ibdev->ib_dev.owner = THIS_MODULE; | |
1246 | ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; | |
95d04f07 | 1247 | ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; |
22e7ef9c | 1248 | ibdev->num_ports = num_ports; |
7ff93f8b | 1249 | ibdev->ib_dev.phys_port_cnt = ibdev->num_ports; |
b8dd786f | 1250 | ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; |
225c7b1f RD |
1251 | ibdev->ib_dev.dma_device = &dev->pdev->dev; |
1252 | ||
1253 | ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION; | |
1254 | ibdev->ib_dev.uverbs_cmd_mask = | |
1255 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1256 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1257 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1258 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1259 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1260 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1261 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1262 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1263 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
bbf8eed1 | 1264 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | |
225c7b1f RD |
1265 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | |
1266 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
1267 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
6a775e2b | 1268 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | |
225c7b1f RD |
1269 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | |
1270 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
1271 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | | |
1272 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
1273 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
65541cb7 | 1274 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | |
18abd5ea | 1275 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | |
42849b26 SH |
1276 | (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) | |
1277 | (1ull << IB_USER_VERBS_CMD_OPEN_QP); | |
225c7b1f RD |
1278 | |
1279 | ibdev->ib_dev.query_device = mlx4_ib_query_device; | |
1280 | ibdev->ib_dev.query_port = mlx4_ib_query_port; | |
fa417f7b | 1281 | ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer; |
225c7b1f RD |
1282 | ibdev->ib_dev.query_gid = mlx4_ib_query_gid; |
1283 | ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey; | |
1284 | ibdev->ib_dev.modify_device = mlx4_ib_modify_device; | |
1285 | ibdev->ib_dev.modify_port = mlx4_ib_modify_port; | |
1286 | ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext; | |
1287 | ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext; | |
1288 | ibdev->ib_dev.mmap = mlx4_ib_mmap; | |
1289 | ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd; | |
1290 | ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd; | |
1291 | ibdev->ib_dev.create_ah = mlx4_ib_create_ah; | |
1292 | ibdev->ib_dev.query_ah = mlx4_ib_query_ah; | |
1293 | ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah; | |
1294 | ibdev->ib_dev.create_srq = mlx4_ib_create_srq; | |
1295 | ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq; | |
65541cb7 | 1296 | ibdev->ib_dev.query_srq = mlx4_ib_query_srq; |
225c7b1f RD |
1297 | ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq; |
1298 | ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv; | |
1299 | ibdev->ib_dev.create_qp = mlx4_ib_create_qp; | |
1300 | ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp; | |
6a775e2b | 1301 | ibdev->ib_dev.query_qp = mlx4_ib_query_qp; |
225c7b1f RD |
1302 | ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp; |
1303 | ibdev->ib_dev.post_send = mlx4_ib_post_send; | |
1304 | ibdev->ib_dev.post_recv = mlx4_ib_post_recv; | |
1305 | ibdev->ib_dev.create_cq = mlx4_ib_create_cq; | |
3fdcb97f | 1306 | ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq; |
bbf8eed1 | 1307 | ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq; |
225c7b1f RD |
1308 | ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq; |
1309 | ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq; | |
1310 | ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq; | |
1311 | ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; | |
1312 | ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; | |
1313 | ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; | |
95d04f07 RD |
1314 | ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr; |
1315 | ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list; | |
1316 | ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list; | |
225c7b1f RD |
1317 | ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; |
1318 | ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; | |
1319 | ibdev->ib_dev.process_mad = mlx4_ib_process_mad; | |
1320 | ||
8ad11fb6 JM |
1321 | ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; |
1322 | ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr; | |
1323 | ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr; | |
1324 | ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc; | |
1325 | ||
012a8ff5 SH |
1326 | if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) { |
1327 | ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd; | |
1328 | ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd; | |
1329 | ibdev->ib_dev.uverbs_cmd_mask |= | |
1330 | (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | | |
1331 | (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); | |
1332 | } | |
1333 | ||
e605b743 SP |
1334 | mlx4_ib_alloc_eqs(dev, ibdev); |
1335 | ||
fa417f7b EC |
1336 | spin_lock_init(&iboe->lock); |
1337 | ||
225c7b1f RD |
1338 | if (init_node_data(ibdev)) |
1339 | goto err_map; | |
1340 | ||
cfcde11c OG |
1341 | for (i = 0; i < ibdev->num_ports; ++i) { |
1342 | if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) == | |
1343 | IB_LINK_LAYER_ETHERNET) { | |
1344 | err = mlx4_counter_alloc(ibdev->dev, &ibdev->counters[i]); | |
1345 | if (err) | |
1346 | ibdev->counters[i] = -1; | |
1347 | } else | |
1348 | ibdev->counters[i] = -1; | |
1349 | } | |
1350 | ||
225c7b1f RD |
1351 | spin_lock_init(&ibdev->sm_lock); |
1352 | mutex_init(&ibdev->cap_mask_mutex); | |
1353 | ||
9a6edb60 | 1354 | if (ib_register_device(&ibdev->ib_dev, NULL)) |
cfcde11c | 1355 | goto err_counter; |
225c7b1f RD |
1356 | |
1357 | if (mlx4_ib_mad_init(ibdev)) | |
1358 | goto err_reg; | |
1359 | ||
fa417f7b EC |
1360 | if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE && !iboe->nb.notifier_call) { |
1361 | iboe->nb.notifier_call = mlx4_ib_netdev_event; | |
1362 | err = register_netdevice_notifier(&iboe->nb); | |
1363 | if (err) | |
1364 | goto err_reg; | |
1365 | } | |
1366 | ||
035b1032 | 1367 | for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) { |
f4e91eb4 | 1368 | if (device_create_file(&ibdev->ib_dev.dev, |
035b1032 | 1369 | mlx4_class_attributes[j])) |
fa417f7b | 1370 | goto err_notif; |
cd9281d8 JM |
1371 | } |
1372 | ||
3b4a8cd5 JM |
1373 | ibdev->ib_active = true; |
1374 | ||
225c7b1f RD |
1375 | return ibdev; |
1376 | ||
fa417f7b EC |
1377 | err_notif: |
1378 | if (unregister_netdevice_notifier(&ibdev->iboe.nb)) | |
987c8f8f | 1379 | pr_warn("failure unregistering notifier\n"); |
fa417f7b EC |
1380 | flush_workqueue(wq); |
1381 | ||
225c7b1f RD |
1382 | err_reg: |
1383 | ib_unregister_device(&ibdev->ib_dev); | |
1384 | ||
cfcde11c OG |
1385 | err_counter: |
1386 | for (; i; --i) | |
4af3ce0d RD |
1387 | if (ibdev->counters[i - 1] != -1) |
1388 | mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]); | |
cfcde11c | 1389 | |
225c7b1f RD |
1390 | err_map: |
1391 | iounmap(ibdev->uar_map); | |
1392 | ||
1393 | err_uar: | |
1394 | mlx4_uar_free(dev, &ibdev->priv_uar); | |
1395 | ||
1396 | err_pd: | |
1397 | mlx4_pd_free(dev, ibdev->priv_pdn); | |
1398 | ||
1399 | err_dealloc: | |
1400 | ib_dealloc_device(&ibdev->ib_dev); | |
1401 | ||
1402 | return NULL; | |
1403 | } | |
1404 | ||
1405 | static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) | |
1406 | { | |
1407 | struct mlx4_ib_dev *ibdev = ibdev_ptr; | |
1408 | int p; | |
1409 | ||
a6a47771 YP |
1410 | mlx4_ib_mad_cleanup(ibdev); |
1411 | ib_unregister_device(&ibdev->ib_dev); | |
fa417f7b EC |
1412 | if (ibdev->iboe.nb.notifier_call) { |
1413 | if (unregister_netdevice_notifier(&ibdev->iboe.nb)) | |
987c8f8f | 1414 | pr_warn("failure unregistering notifier\n"); |
fa417f7b EC |
1415 | ibdev->iboe.nb.notifier_call = NULL; |
1416 | } | |
1417 | iounmap(ibdev->uar_map); | |
cfcde11c | 1418 | for (p = 0; p < ibdev->num_ports; ++p) |
4af3ce0d RD |
1419 | if (ibdev->counters[p] != -1) |
1420 | mlx4_counter_free(ibdev->dev, ibdev->counters[p]); | |
fa417f7b | 1421 | mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB) |
225c7b1f RD |
1422 | mlx4_CLOSE_PORT(dev, p); |
1423 | ||
e605b743 SP |
1424 | mlx4_ib_free_eqs(dev, ibdev); |
1425 | ||
225c7b1f RD |
1426 | mlx4_uar_free(dev, &ibdev->priv_uar); |
1427 | mlx4_pd_free(dev, ibdev->priv_pdn); | |
1428 | ib_dealloc_device(&ibdev->ib_dev); | |
1429 | } | |
1430 | ||
1431 | static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, | |
00f5ce99 | 1432 | enum mlx4_dev_event event, unsigned long param) |
225c7b1f RD |
1433 | { |
1434 | struct ib_event ibev; | |
7ff93f8b | 1435 | struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr); |
00f5ce99 JM |
1436 | struct mlx4_eqe *eqe = NULL; |
1437 | struct ib_event_work *ew; | |
1438 | int port = 0; | |
1439 | ||
1440 | if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE) | |
1441 | eqe = (struct mlx4_eqe *)param; | |
1442 | else | |
1443 | port = (u8)param; | |
7ff93f8b YP |
1444 | |
1445 | if (port > ibdev->num_ports) | |
1446 | return; | |
225c7b1f RD |
1447 | |
1448 | switch (event) { | |
37608eea RD |
1449 | case MLX4_DEV_EVENT_PORT_UP: |
1450 | ibev.event = IB_EVENT_PORT_ACTIVE; | |
225c7b1f RD |
1451 | break; |
1452 | ||
37608eea RD |
1453 | case MLX4_DEV_EVENT_PORT_DOWN: |
1454 | ibev.event = IB_EVENT_PORT_ERR; | |
1455 | break; | |
1456 | ||
1457 | case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: | |
3b4a8cd5 | 1458 | ibdev->ib_active = false; |
225c7b1f RD |
1459 | ibev.event = IB_EVENT_DEVICE_FATAL; |
1460 | break; | |
1461 | ||
00f5ce99 JM |
1462 | case MLX4_DEV_EVENT_PORT_MGMT_CHANGE: |
1463 | ew = kmalloc(sizeof *ew, GFP_ATOMIC); | |
1464 | if (!ew) { | |
1465 | pr_err("failed to allocate memory for events work\n"); | |
1466 | break; | |
1467 | } | |
1468 | ||
1469 | INIT_WORK(&ew->work, handle_port_mgmt_change_event); | |
1470 | memcpy(&ew->ib_eqe, eqe, sizeof *eqe); | |
1471 | ew->ib_dev = ibdev; | |
1472 | handle_port_mgmt_change_event(&ew->work); | |
1473 | return; | |
1474 | ||
225c7b1f RD |
1475 | default: |
1476 | return; | |
1477 | } | |
1478 | ||
1479 | ibev.device = ibdev_ptr; | |
1480 | ibev.element.port_num = port; | |
1481 | ||
1482 | ib_dispatch_event(&ibev); | |
1483 | } | |
1484 | ||
1485 | static struct mlx4_interface mlx4_ib_interface = { | |
fa417f7b EC |
1486 | .add = mlx4_ib_add, |
1487 | .remove = mlx4_ib_remove, | |
1488 | .event = mlx4_ib_event, | |
0345584e | 1489 | .protocol = MLX4_PROT_IB_IPV6 |
225c7b1f RD |
1490 | }; |
1491 | ||
1492 | static int __init mlx4_ib_init(void) | |
1493 | { | |
fa417f7b EC |
1494 | int err; |
1495 | ||
1496 | wq = create_singlethread_workqueue("mlx4_ib"); | |
1497 | if (!wq) | |
1498 | return -ENOMEM; | |
1499 | ||
1500 | err = mlx4_register_interface(&mlx4_ib_interface); | |
1501 | if (err) { | |
1502 | destroy_workqueue(wq); | |
1503 | return err; | |
1504 | } | |
1505 | ||
1506 | return 0; | |
225c7b1f RD |
1507 | } |
1508 | ||
1509 | static void __exit mlx4_ib_cleanup(void) | |
1510 | { | |
1511 | mlx4_unregister_interface(&mlx4_ib_interface); | |
fa417f7b | 1512 | destroy_workqueue(wq); |
225c7b1f RD |
1513 | } |
1514 | ||
1515 | module_init(mlx4_ib_init); | |
1516 | module_exit(mlx4_ib_cleanup); |