projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
mlx4_core: INIT/CLOSE port logic for IB ports in SR-IOV mode
[deliverable/linux.git] / drivers / infiniband / hw / mlx4 / main.c
CommitLineData
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
57MODULE_AUTHOR("Roland Dreier");
58MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
59MODULE_LICENSE("Dual BSD/GPL");
60MODULE_VERSION(DRV_VERSION);
61
a0c64a17
JM		 62int mlx4_ib_sm_guid_assign = 1;
63module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444);
64MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 1)");
65
68f3948d 66static const char mlx4_ib_version[] =
225c7b1f
RD		 67 DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
68 DRV_VERSION " (" DRV_RELDATE ")\n";
69
fa417f7b
EC		 70struct update_gid_work {
71 struct work_struct work;
72 union ib_gid gids[128];
73 struct mlx4_ib_dev *dev;
74 int port;
75};
76
77static struct workqueue_struct *wq;
78
225c7b1f
RD		 79static void init_query_mad(struct ib_smp *mad)
80{
81 mad->base_version = 1;
82 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
83 mad->class_version = 1;
84 mad->method = IB_MGMT_METHOD_GET;
85}
86
4c3eb3ca
EC		 87static union ib_gid zgid;
88
225c7b1f
RD		 89static int mlx4_ib_query_device(struct ib_device *ibdev,
90 struct ib_device_attr *props)
91{
92 struct mlx4_ib_dev *dev = to_mdev(ibdev);
93 struct ib_smp *in_mad = NULL;
94 struct ib_smp *out_mad = NULL;
95 int err = -ENOMEM;
96
97 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
98 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
99 if (!in_mad || !out_mad)
100 goto out;
101
102 init_query_mad(in_mad);
103 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
104
0a9a0188
JM		 105 err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS,
106 1, NULL, NULL, in_mad, out_mad);
225c7b1f
RD		 107 if (err)
108 goto out;
109
110 memset(props, 0, sizeof *props);
111
112 props->fw_ver = dev->dev->caps.fw_ver;
113 props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
114 IB_DEVICE_PORT_ACTIVE_EVENT |
115 IB_DEVICE_SYS_IMAGE_GUID |
521e575b
RL		 116 IB_DEVICE_RC_RNR_NAK_GEN |
117 IB_DEVICE_BLOCK_MULTICAST_LOOPBACK;
225c7b1f
RD		 118 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
119 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
120 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
121 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
122 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM)
123 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
124 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
125 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
8ff095ec
EC		 126 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
127 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
417608c2 128 if (dev->dev->caps.max_gso_sz && dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH)
b832be1e 129 props->device_cap_flags |= IB_DEVICE_UD_TSO;
95d04f07
RD		 130 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY)
131 props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY;
132 if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) &&
133 (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) &&
134 (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR))
135 props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
0a1405da
SH		 136 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)
137 props->device_cap_flags |= IB_DEVICE_XRC;
225c7b1f
RD		 138
139 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
140 0xffffff;
141 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30));
142 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32));
143 memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
144
145 props->max_mr_size = ~0ull;
146 props->page_size_cap = dev->dev->caps.page_size_cap;
147 props->max_qp = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps;
fc2d0044 148 props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE;
225c7b1f
RD		 149 props->max_sge = min(dev->dev->caps.max_sq_sg,
150 dev->dev->caps.max_rq_sg);
151 props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs;
152 props->max_cqe = dev->dev->caps.max_cqes;
153 props->max_mr = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws;
154 props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
155 props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma;
156 props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
157 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
158 props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs;
c8681f14 159 props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1;
225c7b1f 160 props->max_srq_sge = dev->dev->caps.max_srq_sge;
5a0fd094 161 props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
225c7b1f
RD		 162 props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay;
163 props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
164 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
47e956b2 165 props->masked_atomic_cap = props->atomic_cap;
5ae2a7a8 166 props->max_pkeys = dev->dev->caps.pkey_table_len[1];
225c7b1f
RD		 167 props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
168 props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
169 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
170 props->max_mcast_grp;
a5bbe892 171 props->max_map_per_fmr = dev->dev->caps.max_fmr_maps;
225c7b1f
RD		 172
173out:
174 kfree(in_mad);
175 kfree(out_mad);
176
177 return err;
178}
179
fa417f7b
EC		 180static enum rdma_link_layer
181mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
225c7b1f 182{
fa417f7b 183 struct mlx4_dev *dev = to_mdev(device)->dev;
225c7b1f 184
65dab25d 185 return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ?
fa417f7b
EC		 186 IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
187}
225c7b1f 188
fa417f7b 189static int ib_link_query_port(struct ib_device *ibdev, u8 port,
0a9a0188 190 struct ib_port_attr *props, int netw_view)
fa417f7b 191{
a9c766bb
OG		 192 struct ib_smp *in_mad = NULL;
193 struct ib_smp *out_mad = NULL;
a5e12dff 194 int ext_active_speed;
0a9a0188 195 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
a9c766bb
OG		 196 int err = -ENOMEM;
197
198 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
199 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
200 if (!in_mad || !out_mad)
201 goto out;
202
203 init_query_mad(in_mad);
204 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
205 in_mad->attr_mod = cpu_to_be32(port);
206
0a9a0188
JM		 207 if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
208 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
209
210 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
a9c766bb
OG		 211 in_mad, out_mad);
212 if (err)
213 goto out;
214
a5e12dff 215
225c7b1f
RD		 216 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
217 props->lmc = out_mad->data[34] & 0x7;
218 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
219 props->sm_sl = out_mad->data[36] & 0xf;
220 props->state = out_mad->data[32] & 0xf;
221 props->phys_state = out_mad->data[33] >> 4;
222 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
0a9a0188
JM		 223 if (netw_view)
224 props->gid_tbl_len = out_mad->data[50];
225 else
226 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
149983af 227 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
5ae2a7a8 228 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
225c7b1f
RD		 229 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
230 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
231 props->active_width = out_mad->data[31] & 0xf;
232 props->active_speed = out_mad->data[35] >> 4;
233 props->max_mtu = out_mad->data[41] & 0xf;
234 props->active_mtu = out_mad->data[36] >> 4;
235 props->subnet_timeout = out_mad->data[51] & 0x1f;
236 props->max_vl_num = out_mad->data[37] >> 4;
237 props->init_type_reply = out_mad->data[41] >> 4;
238
a5e12dff
MA		 239 /* Check if extended speeds (EDR/FDR/...) are supported */
240 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
241 ext_active_speed = out_mad->data[62] >> 4;
242
243 switch (ext_active_speed) {
244 case 1:
2e96691c 245 props->active_speed = IB_SPEED_FDR;
a5e12dff
MA		 246 break;
247 case 2:
2e96691c 248 props->active_speed = IB_SPEED_EDR;
a5e12dff
MA		 249 break;
250 }
251 }
252
253 /* If reported active speed is QDR, check if is FDR-10 */
2e96691c 254 if (props->active_speed == IB_SPEED_QDR) {
8154c07f
OG		 255 init_query_mad(in_mad);
256 in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
257 in_mad->attr_mod = cpu_to_be32(port);
258
0a9a0188 259 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port,
8154c07f
OG		 260 NULL, NULL, in_mad, out_mad);
261 if (err)
bf6b47de 262 goto out;
8154c07f
OG		 263
264 /* Checking LinkSpeedActive for FDR-10 */
265 if (out_mad->data[15] & 0x1)
266 props->active_speed = IB_SPEED_FDR10;
a5e12dff 267 }
d2ef4068
OG		 268
269 /* Avoid wrong speed value returned by FW if the IB link is down. */
270 if (props->state == IB_PORT_DOWN)
271 props->active_speed = IB_SPEED_SDR;
272
a9c766bb
OG		 273out:
274 kfree(in_mad);
275 kfree(out_mad);
276 return err;
fa417f7b
EC		 277}
278
279static u8 state_to_phys_state(enum ib_port_state state)
280{
281 return state == IB_PORT_ACTIVE ? 5 : 3;
282}
283
284static int eth_link_query_port(struct ib_device *ibdev, u8 port,
0a9a0188 285 struct ib_port_attr *props, int netw_view)
fa417f7b 286{
a9c766bb
OG		 287
288 struct mlx4_ib_dev *mdev = to_mdev(ibdev);
289 struct mlx4_ib_iboe *iboe = &mdev->iboe;
fa417f7b
EC		 290 struct net_device *ndev;
291 enum ib_mtu tmp;
a9c766bb
OG		 292 struct mlx4_cmd_mailbox *mailbox;
293 int err = 0;
294
295 mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
296 if (IS_ERR(mailbox))
297 return PTR_ERR(mailbox);
fa417f7b 298
a9c766bb
OG		 299 err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
300 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
301 MLX4_CMD_WRAPPED);
302 if (err)
303 goto out;
304
305 props->active_width = (((u8 *)mailbox->buf)[5] == 0x40) ?
306 IB_WIDTH_4X : IB_WIDTH_1X;
2e96691c 307 props->active_speed = IB_SPEED_QDR;
fa417f7b 308 props->port_cap_flags = IB_PORT_CM_SUP;
a9c766bb
OG		 309 props->gid_tbl_len = mdev->dev->caps.gid_table_len[port];
310 props->max_msg_sz = mdev->dev->caps.max_msg_sz;
fa417f7b 311 props->pkey_tbl_len = 1;
bcacb897 312 props->max_mtu = IB_MTU_4096;
a9c766bb 313 props->max_vl_num = 2;
fa417f7b
EC		 314 props->state = IB_PORT_DOWN;
315 props->phys_state = state_to_phys_state(props->state);
316 props->active_mtu = IB_MTU_256;
317 spin_lock(&iboe->lock);
318 ndev = iboe->netdevs[port - 1];
319 if (!ndev)
a9c766bb 320 goto out_unlock;
fa417f7b
EC		 321
322 tmp = iboe_get_mtu(ndev->mtu);
323 props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
324
21d60609 325 props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ?
fa417f7b
EC		 326 IB_PORT_ACTIVE : IB_PORT_DOWN;
327 props->phys_state = state_to_phys_state(props->state);
a9c766bb 328out_unlock:
fa417f7b 329 spin_unlock(&iboe->lock);
a9c766bb
OG		 330out:
331 mlx4_free_cmd_mailbox(mdev->dev, mailbox);
332 return err;
fa417f7b
EC		 333}
334
0a9a0188
JM		 335int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
336 struct ib_port_attr *props, int netw_view)
fa417f7b 337{
a9c766bb 338 int err;
fa417f7b
EC		 339
340 memset(props, 0, sizeof *props);
341
fa417f7b 342 err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
0a9a0188
JM		 343 ib_link_query_port(ibdev, port, props, netw_view) :
344 eth_link_query_port(ibdev, port, props, netw_view);
225c7b1f
RD		 345
346 return err;
347}
348
0a9a0188
JM		 349static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
350 struct ib_port_attr *props)
351{
352 /* returns host view */
353 return __mlx4_ib_query_port(ibdev, port, props, 0);
354}
355
a0c64a17
JM		 356int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
357 union ib_gid *gid, int netw_view)
225c7b1f
RD		 358{
359 struct ib_smp *in_mad = NULL;
360 struct ib_smp *out_mad = NULL;
361 int err = -ENOMEM;
a0c64a17
JM		 362 struct mlx4_ib_dev *dev = to_mdev(ibdev);
363 int clear = 0;
364 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
225c7b1f
RD		 365
366 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
367 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
368 if (!in_mad || !out_mad)
369 goto out;
370
371 init_query_mad(in_mad);
372 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
373 in_mad->attr_mod = cpu_to_be32(port);
374
a0c64a17
JM		 375 if (mlx4_is_mfunc(dev->dev) && netw_view)
376 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
377
378 err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad);
225c7b1f
RD		 379 if (err)
380 goto out;
381
382 memcpy(gid->raw, out_mad->data + 8, 8);
383
a0c64a17
JM		 384 if (mlx4_is_mfunc(dev->dev) && !netw_view) {
385 if (index) {
386 /* For any index > 0, return the null guid */
387 err = 0;
388 clear = 1;
389 goto out;
390 }
391 }
392
225c7b1f
RD		 393 init_query_mad(in_mad);
394 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
395 in_mad->attr_mod = cpu_to_be32(index / 8);
396
a0c64a17 397 err = mlx4_MAD_IFC(dev, mad_ifc_flags, port,
0a9a0188 398 NULL, NULL, in_mad, out_mad);
225c7b1f
RD		 399 if (err)
400 goto out;
401
402 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
403
404out:
a0c64a17
JM		 405 if (clear)
406 memset(gid->raw + 8, 0, 8);
225c7b1f
RD		 407 kfree(in_mad);
408 kfree(out_mad);
409 return err;
410}
411
fa417f7b
EC		 412static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index,
413 union ib_gid *gid)
414{
415 struct mlx4_ib_dev *dev = to_mdev(ibdev);
416
417 *gid = dev->iboe.gid_table[port - 1][index];
418
419 return 0;
420}
421
422static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
423 union ib_gid *gid)
424{
425 if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND)
a0c64a17 426 return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
fa417f7b
EC		 427 else
428 return iboe_query_gid(ibdev, port, index, gid);
429}
430
0a9a0188
JM		 431int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
432 u16 *pkey, int netw_view)
225c7b1f
RD		 433{
434 struct ib_smp *in_mad = NULL;
435 struct ib_smp *out_mad = NULL;
0a9a0188 436 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
225c7b1f
RD		 437 int err = -ENOMEM;
438
439 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
440 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
441 if (!in_mad || !out_mad)
442 goto out;
443
444 init_query_mad(in_mad);
445 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
446 in_mad->attr_mod = cpu_to_be32(index / 32);
447
0a9a0188
JM		 448 if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
449 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
450
451 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
452 in_mad, out_mad);
225c7b1f
RD		 453 if (err)
454 goto out;
455
456 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
457
458out:
459 kfree(in_mad);
460 kfree(out_mad);
461 return err;
462}
463
0a9a0188
JM		 464static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
465{
466 return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0);
467}
468
225c7b1f
RD		 469static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
470 struct ib_device_modify *props)
471{
d0d68b86 472 struct mlx4_cmd_mailbox *mailbox;
df7fba66 473 unsigned long flags;
d0d68b86 474
225c7b1f
RD		 475 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
476 return -EOPNOTSUPP;
477
d0d68b86
JM		 478 if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
479 return 0;
480
df7fba66 481 spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags);
d0d68b86 482 memcpy(ibdev->node_desc, props->node_desc, 64);
df7fba66 483 spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags);
d0d68b86
JM		 484
485 /*
486 * If possible, pass node desc to FW, so it can generate
487 * a 144 trap. If cmd fails, just ignore.
488 */
489 mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
490 if (IS_ERR(mailbox))
491 return 0;
492
493 memset(mailbox->buf, 0, 256);
494 memcpy(mailbox->buf, props->node_desc, 64);
495 mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
f9baff50 496 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
d0d68b86
JM		 497
498 mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
225c7b1f
RD		 499
500 return 0;
501}
502
503static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
504 u32 cap_mask)
505{
506 struct mlx4_cmd_mailbox *mailbox;
507 int err;
fa417f7b 508 u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
225c7b1f
RD		 509
510 mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
511 if (IS_ERR(mailbox))
512 return PTR_ERR(mailbox);
513
514 memset(mailbox->buf, 0, 256);
5ae2a7a8
RD		 515
516 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
517 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6;
518 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
519 } else {
520 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols;
521 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
522 }
225c7b1f 523
fa417f7b 524 err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT,
f9baff50 525 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
225c7b1f
RD		 526
527 mlx4_free_cmd_mailbox(dev->dev, mailbox);
528 return err;
529}
530
531static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
532 struct ib_port_modify *props)
533{
534 struct ib_port_attr attr;
535 u32 cap_mask;
536 int err;
537
538 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
539
540 err = mlx4_ib_query_port(ibdev, port, &attr);
541 if (err)
542 goto out;
543
544 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
545 ~props->clr_port_cap_mask;
546
547 err = mlx4_SET_PORT(to_mdev(ibdev), port,
548 !!(mask & IB_PORT_RESET_QKEY_CNTR),
549 cap_mask);
550
551out:
552 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
553 return err;
554}
555
556static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
557 struct ib_udata *udata)
558{
559 struct mlx4_ib_dev *dev = to_mdev(ibdev);
560 struct mlx4_ib_ucontext *context;
561 struct mlx4_ib_alloc_ucontext_resp resp;
562 int err;
563
3b4a8cd5
JM		 564 if (!dev->ib_active)
565 return ERR_PTR(-EAGAIN);
566
225c7b1f
RD		 567 resp.qp_tab_size = dev->dev->caps.num_qps;
568 resp.bf_reg_size = dev->dev->caps.bf_reg_size;
569 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
570
571 context = kmalloc(sizeof *context, GFP_KERNEL);
572 if (!context)
573 return ERR_PTR(-ENOMEM);
574
575 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
576 if (err) {
577 kfree(context);
578 return ERR_PTR(err);
579 }
580
581 INIT_LIST_HEAD(&context->db_page_list);
582 mutex_init(&context->db_page_mutex);
583
584 err = ib_copy_to_udata(udata, &resp, sizeof resp);
585 if (err) {
586 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
587 kfree(context);
588 return ERR_PTR(-EFAULT);
589 }
590
591 return &context->ibucontext;
592}
593
594static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
595{
596 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
597
598 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
599 kfree(context);
600
601 return 0;
602}
603
604static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
605{
606 struct mlx4_ib_dev *dev = to_mdev(context->device);
607
608 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
609 return -EINVAL;
610
611 if (vma->vm_pgoff == 0) {
612 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
613
614 if (io_remap_pfn_range(vma, vma->vm_start,
615 to_mucontext(context)->uar.pfn,
616 PAGE_SIZE, vma->vm_page_prot))
617 return -EAGAIN;
618 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
e1d60ec6 619 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
225c7b1f
RD		 620
621 if (io_remap_pfn_range(vma, vma->vm_start,
622 to_mucontext(context)->uar.pfn +
623 dev->dev->caps.num_uars,
624 PAGE_SIZE, vma->vm_page_prot))
625 return -EAGAIN;
626 } else
627 return -EINVAL;
628
629 return 0;
630}
631
632static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
633 struct ib_ucontext *context,
634 struct ib_udata *udata)
635{
636 struct mlx4_ib_pd *pd;
637 int err;
638
639 pd = kmalloc(sizeof *pd, GFP_KERNEL);
640 if (!pd)
641 return ERR_PTR(-ENOMEM);
642
643 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
644 if (err) {
645 kfree(pd);
646 return ERR_PTR(err);
647 }
648
649 if (context)
650 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
651 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
652 kfree(pd);
653 return ERR_PTR(-EFAULT);
654 }
655
656 return &pd->ibpd;
657}
658
659static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
660{
661 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
662 kfree(pd);
663
664 return 0;
665}
666
012a8ff5
SH		 667static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
668 struct ib_ucontext *context,
669 struct ib_udata *udata)
670{
671 struct mlx4_ib_xrcd *xrcd;
672 int err;
673
674 if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
675 return ERR_PTR(-ENOSYS);
676
677 xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
678 if (!xrcd)
679 return ERR_PTR(-ENOMEM);
680
681 err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
682 if (err)
683 goto err1;
684
685 xrcd->pd = ib_alloc_pd(ibdev);
686 if (IS_ERR(xrcd->pd)) {
687 err = PTR_ERR(xrcd->pd);
688 goto err2;
689 }
690
691 xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0);
692 if (IS_ERR(xrcd->cq)) {
693 err = PTR_ERR(xrcd->cq);
694 goto err3;
695 }
696
697 return &xrcd->ibxrcd;
698
699err3:
700 ib_dealloc_pd(xrcd->pd);
701err2:
702 mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
703err1:
704 kfree(xrcd);
705 return ERR_PTR(err);
706}
707
708static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
709{
710 ib_destroy_cq(to_mxrcd(xrcd)->cq);
711 ib_dealloc_pd(to_mxrcd(xrcd)->pd);
712 mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
713 kfree(xrcd);
714
715 return 0;
716}
717
fa417f7b
EC		 718static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
719{
720 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
721 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
722 struct mlx4_ib_gid_entry *ge;
723
724 ge = kzalloc(sizeof *ge, GFP_KERNEL);
725 if (!ge)
726 return -ENOMEM;
727
728 ge->gid = *gid;
729 if (mlx4_ib_add_mc(mdev, mqp, gid)) {
730 ge->port = mqp->port;
731 ge->added = 1;
732 }
733
734 mutex_lock(&mqp->mutex);
735 list_add_tail(&ge->list, &mqp->gid_list);
736 mutex_unlock(&mqp->mutex);
737
738 return 0;
739}
740
741int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
742 union ib_gid *gid)
743{
744 u8 mac[6];
745 struct net_device *ndev;
746 int ret = 0;
747
748 if (!mqp->port)
749 return 0;
750
751 spin_lock(&mdev->iboe.lock);
752 ndev = mdev->iboe.netdevs[mqp->port - 1];
753 if (ndev)
754 dev_hold(ndev);
755 spin_unlock(&mdev->iboe.lock);
756
757 if (ndev) {
758 rdma_get_mcast_mac((struct in6_addr *)gid, mac);
759 rtnl_lock();
760 dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac);
761 ret = 1;
762 rtnl_unlock();
763 dev_put(ndev);
764 }
765
766 return ret;
767}
768
0ff1fb65
HHZ		 769struct mlx4_ib_steering {
770 struct list_head list;
771 u64 reg_id;
772 union ib_gid gid;
773};
774
225c7b1f
RD		 775static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
776{
fa417f7b
EC		 777 int err;
778 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
779 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
0ff1fb65
HHZ		 780 u64 reg_id;
781 struct mlx4_ib_steering *ib_steering = NULL;
782
783 if (mdev->dev->caps.steering_mode ==
784 MLX4_STEERING_MODE_DEVICE_MANAGED) {
785 ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL);
786 if (!ib_steering)
787 return -ENOMEM;
788 }
fa417f7b 789
0ff1fb65
HHZ		 790 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port,
791 !!(mqp->flags &
792 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
793 MLX4_PROT_IB_IPV6, &reg_id);
fa417f7b 794 if (err)
0ff1fb65 795 goto err_malloc;
fa417f7b
EC		 796
797 err = add_gid_entry(ibqp, gid);
798 if (err)
799 goto err_add;
800
0ff1fb65
HHZ		 801 if (ib_steering) {
802 memcpy(ib_steering->gid.raw, gid->raw, 16);
803 ib_steering->reg_id = reg_id;
804 mutex_lock(&mqp->mutex);
805 list_add(&ib_steering->list, &mqp->steering_rules);
806 mutex_unlock(&mqp->mutex);
807 }
fa417f7b
EC		 808 return 0;
809
810err_add:
0ff1fb65
HHZ		 811 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
812 MLX4_PROT_IB_IPV6, reg_id);
813err_malloc:
814 kfree(ib_steering);
815
fa417f7b
EC		 816 return err;
817}
818
819static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
820{
821 struct mlx4_ib_gid_entry *ge;
822 struct mlx4_ib_gid_entry *tmp;
823 struct mlx4_ib_gid_entry *ret = NULL;
824
825 list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
826 if (!memcmp(raw, ge->gid.raw, 16)) {
827 ret = ge;
828 break;
829 }
830 }
831
832 return ret;
225c7b1f
RD		 833}
834
835static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
836{
fa417f7b
EC		 837 int err;
838 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
839 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
840 u8 mac[6];
841 struct net_device *ndev;
842 struct mlx4_ib_gid_entry *ge;
0ff1fb65
HHZ		 843 u64 reg_id = 0;
844
845 if (mdev->dev->caps.steering_mode ==
846 MLX4_STEERING_MODE_DEVICE_MANAGED) {
847 struct mlx4_ib_steering *ib_steering;
848
849 mutex_lock(&mqp->mutex);
850 list_for_each_entry(ib_steering, &mqp->steering_rules, list) {
851 if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) {
852 list_del(&ib_steering->list);
853 break;
854 }
855 }
856 mutex_unlock(&mqp->mutex);
857 if (&ib_steering->list == &mqp->steering_rules) {
858 pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n");
859 return -EINVAL;
860 }
861 reg_id = ib_steering->reg_id;
862 kfree(ib_steering);
863 }
fa417f7b 864
0ff1fb65
HHZ		 865 err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
866 MLX4_PROT_IB_IPV6, reg_id);
fa417f7b
EC		 867 if (err)
868 return err;
869
870 mutex_lock(&mqp->mutex);
871 ge = find_gid_entry(mqp, gid->raw);
872 if (ge) {
873 spin_lock(&mdev->iboe.lock);
874 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
875 if (ndev)
876 dev_hold(ndev);
877 spin_unlock(&mdev->iboe.lock);
878 rdma_get_mcast_mac((struct in6_addr *)gid, mac);
879 if (ndev) {
880 rtnl_lock();
881 dev_mc_del(mdev->iboe.netdevs[ge->port - 1], mac);
882 rtnl_unlock();
883 dev_put(ndev);
884 }
885 list_del(&ge->list);
886 kfree(ge);
887 } else
987c8f8f 888 pr_warn("could not find mgid entry\n");
fa417f7b
EC		 889
890 mutex_unlock(&mqp->mutex);
891
892 return 0;
225c7b1f
RD		 893}
894
895static int init_node_data(struct mlx4_ib_dev *dev)
896{
897 struct ib_smp *in_mad = NULL;
898 struct ib_smp *out_mad = NULL;
0a9a0188 899 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
225c7b1f
RD		 900 int err = -ENOMEM;
901
902 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
903 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
904 if (!in_mad || !out_mad)
905 goto out;
906
907 init_query_mad(in_mad);
908 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
0a9a0188
JM		 909 if (mlx4_is_master(dev->dev))
910 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
225c7b1f 911
0a9a0188 912 err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
225c7b1f
RD		 913 if (err)
914 goto out;
915
916 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
917
918 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
919
0a9a0188 920 err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
225c7b1f
RD		 921 if (err)
922 goto out;
923
924 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
925
926out:
927 kfree(in_mad);
928 kfree(out_mad);
929 return err;
930}
931
f4e91eb4
TJ		 932static ssize_t show_hca(struct device *device, struct device_attribute *attr,
933 char *buf)
cd9281d8 934{
f4e91eb4
TJ		 935 struct mlx4_ib_dev *dev =
936 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 937 return sprintf(buf, "MT%d\n", dev->dev->pdev->device);
938}
939
f4e91eb4
TJ		 940static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
941 char *buf)
cd9281d8 942{
f4e91eb4
TJ		 943 struct mlx4_ib_dev *dev =
944 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 945 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
946 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
947 (int) dev->dev->caps.fw_ver & 0xffff);
948}
949
f4e91eb4
TJ		 950static ssize_t show_rev(struct device *device, struct device_attribute *attr,
951 char *buf)
cd9281d8 952{
f4e91eb4
TJ		 953 struct mlx4_ib_dev *dev =
954 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 955 return sprintf(buf, "%x\n", dev->dev->rev_id);
956}
957
f4e91eb4
TJ		 958static ssize_t show_board(struct device *device, struct device_attribute *attr,
959 char *buf)
cd9281d8 960{
f4e91eb4
TJ		 961 struct mlx4_ib_dev *dev =
962 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
963 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
964 dev->dev->board_id);
cd9281d8
JM		 965}
966
f4e91eb4
TJ		 967static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
968static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
969static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
970static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
cd9281d8 971
f4e91eb4
TJ		 972static struct device_attribute *mlx4_class_attributes[] = {
973 &dev_attr_hw_rev,
974 &dev_attr_fw_ver,
975 &dev_attr_hca_type,
976 &dev_attr_board_id
cd9281d8
JM		 977};
978
4c3eb3ca 979static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev)
fa417f7b
EC		 980{
981 memcpy(eui, dev->dev_addr, 3);
982 memcpy(eui + 5, dev->dev_addr + 3, 3);
4c3eb3ca
EC		 983 if (vlan_id < 0x1000) {
984 eui[3] = vlan_id >> 8;
985 eui[4] = vlan_id & 0xff;
986 } else {
987 eui[3] = 0xff;
988 eui[4] = 0xfe;
989 }
fa417f7b
EC		 990 eui[0] ^= 2;
991}
992
993static void update_gids_task(struct work_struct *work)
994{
995 struct update_gid_work *gw = container_of(work, struct update_gid_work, work);
996 struct mlx4_cmd_mailbox *mailbox;
997 union ib_gid *gids;
998 int err;
999 struct mlx4_dev *dev = gw->dev->dev;
fa417f7b
EC		 1000
1001 mailbox = mlx4_alloc_cmd_mailbox(dev);
1002 if (IS_ERR(mailbox)) {
987c8f8f 1003 pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox));
fa417f7b
EC		 1004 return;
1005 }
1006
1007 gids = mailbox->buf;
1008 memcpy(gids, gw->gids, sizeof gw->gids);
1009
1010 err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port,
f9baff50
JM		 1011 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
1012 MLX4_CMD_NATIVE);
fa417f7b 1013 if (err)
987c8f8f 1014 pr_warn("set port command failed\n");
fa417f7b
EC		 1015 else {
1016 memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids);
00f5ce99 1017 mlx4_ib_dispatch_event(gw->dev, gw->port, IB_EVENT_GID_CHANGE);
fa417f7b
EC		 1018 }
1019
1020 mlx4_free_cmd_mailbox(dev, mailbox);
1021 kfree(gw);
1022}
1023
1024static int update_ipv6_gids(struct mlx4_ib_dev *dev, int port, int clear)
1025{
1026 struct net_device *ndev = dev->iboe.netdevs[port - 1];
1027 struct update_gid_work *work;
4c3eb3ca
EC		 1028 struct net_device *tmp;
1029 int i;
1030 u8 *hits;
1031 int ret;
1032 union ib_gid gid;
1033 int free;
1034 int found;
1035 int need_update = 0;
1036 u16 vid;
fa417f7b
EC		 1037
1038 work = kzalloc(sizeof *work, GFP_ATOMIC);
1039 if (!work)
1040 return -ENOMEM;
1041
4c3eb3ca
EC		 1042 hits = kzalloc(128, GFP_ATOMIC);
1043 if (!hits) {
1044 ret = -ENOMEM;
1045 goto out;
1046 }
1047
22f4fbd9
ED		 1048 rcu_read_lock();
1049 for_each_netdev_rcu(&init_net, tmp) {
4c3eb3ca
EC		 1050 if (ndev && (tmp == ndev || rdma_vlan_dev_real_dev(tmp) == ndev)) {
1051 gid.global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
1052 vid = rdma_vlan_dev_vlan_id(tmp);
1053 mlx4_addrconf_ifid_eui48(&gid.raw[8], vid, ndev);
1054 found = 0;
1055 free = -1;
1056 for (i = 0; i < 128; ++i) {
1057 if (free < 0 &&
1058 !memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid))
1059 free = i;
1060 if (!memcmp(&dev->iboe.gid_table[port - 1][i], &gid, sizeof gid)) {
1061 hits[i] = 1;
1062 found = 1;
1063 break;
1064 }
1065 }
1066
1067 if (!found) {
1068 if (tmp == ndev &&
1069 (memcmp(&dev->iboe.gid_table[port - 1][0],
1070 &gid, sizeof gid) ||
1071 !memcmp(&dev->iboe.gid_table[port - 1][0],
1072 &zgid, sizeof gid))) {
1073 dev->iboe.gid_table[port - 1][0] = gid;
1074 ++need_update;
1075 hits[0] = 1;
1076 } else if (free >= 0) {
1077 dev->iboe.gid_table[port - 1][free] = gid;
1078 hits[free] = 1;
1079 ++need_update;
1080 }
1081 }
1082 }
fa417f7b 1083 }
22f4fbd9 1084 rcu_read_unlock();
4c3eb3ca
EC		 1085
1086 for (i = 0; i < 128; ++i)
1087 if (!hits[i]) {
1088 if (memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid))
1089 ++need_update;
1090 dev->iboe.gid_table[port - 1][i] = zgid;
1091 }
fa417f7b 1092
4c3eb3ca
EC		 1093 if (need_update) {
1094 memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof work->gids);
1095 INIT_WORK(&work->work, update_gids_task);
1096 work->port = port;
1097 work->dev = dev;
1098 queue_work(wq, &work->work);
1099 } else
1100 kfree(work);
fa417f7b 1101
4c3eb3ca 1102 kfree(hits);
fa417f7b 1103 return 0;
4c3eb3ca
EC		 1104
1105out:
1106 kfree(work);
1107 return ret;
fa417f7b
EC		 1108}
1109
1110static void handle_en_event(struct mlx4_ib_dev *dev, int port, unsigned long event)
1111{
1112 switch (event) {
1113 case NETDEV_UP:
4c3eb3ca 1114 case NETDEV_CHANGEADDR:
fa417f7b
EC		 1115 update_ipv6_gids(dev, port, 0);
1116 break;
1117
1118 case NETDEV_DOWN:
1119 update_ipv6_gids(dev, port, 1);
1120 dev->iboe.netdevs[port - 1] = NULL;
1121 }
1122}
1123
1124static void netdev_added(struct mlx4_ib_dev *dev, int port)
1125{
1126 update_ipv6_gids(dev, port, 0);
1127}
1128
1129static void netdev_removed(struct mlx4_ib_dev *dev, int port)
1130{
1131 update_ipv6_gids(dev, port, 1);
1132}
1133
1134static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event,
1135 void *ptr)
1136{
1137 struct net_device *dev = ptr;
1138 struct mlx4_ib_dev *ibdev;
1139 struct net_device *oldnd;
1140 struct mlx4_ib_iboe *iboe;
1141 int port;
1142
1143 if (!net_eq(dev_net(dev), &init_net))
1144 return NOTIFY_DONE;
1145
1146 ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
1147 iboe = &ibdev->iboe;
1148
1149 spin_lock(&iboe->lock);
1150 mlx4_foreach_ib_transport_port(port, ibdev->dev) {
1151 oldnd = iboe->netdevs[port - 1];
1152 iboe->netdevs[port - 1] =
0345584e 1153 mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
fa417f7b
EC		 1154 if (oldnd != iboe->netdevs[port - 1]) {
1155 if (iboe->netdevs[port - 1])
1156 netdev_added(ibdev, port);
1157 else
1158 netdev_removed(ibdev, port);
1159 }
1160 }
1161
4c3eb3ca
EC		 1162 if (dev == iboe->netdevs[0] ||
1163 (iboe->netdevs[0] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[0]))
fa417f7b 1164 handle_en_event(ibdev, 1, event);
4c3eb3ca
EC		 1165 else if (dev == iboe->netdevs[1]
1166 || (iboe->netdevs[1] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[1]))
fa417f7b
EC		 1167 handle_en_event(ibdev, 2, event);
1168
1169 spin_unlock(&iboe->lock);
1170
1171 return NOTIFY_DONE;
1172}
1173
54679e14
JM		 1174static void init_pkeys(struct mlx4_ib_dev *ibdev)
1175{
1176 int port;
1177 int slave;
1178 int i;
1179
1180 if (mlx4_is_master(ibdev->dev)) {
1181 for (slave = 0; slave <= ibdev->dev->num_vfs; ++slave) {
1182 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
1183 for (i = 0;
1184 i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
1185 ++i) {
1186 ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] =
1187 /* master has the identity virt2phys pkey mapping */
1188 (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i :
1189 ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1;
1190 mlx4_sync_pkey_table(ibdev->dev, slave, port, i,
1191 ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]);
1192 }
1193 }
1194 }
1195 /* initialize pkey cache */
1196 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
1197 for (i = 0;
1198 i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
1199 ++i)
1200 ibdev->pkeys.phys_pkey_cache[port-1][i] =
1201 (i) ? 0 : 0xFFFF;
1202 }
1203 }
1204}
1205
e605b743
SP		 1206static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
1207{
1208 char name[32];
1209 int eq_per_port = 0;
1210 int added_eqs = 0;
1211 int total_eqs = 0;
1212 int i, j, eq;
1213
3aac6ff1
SP		 1214 /* Legacy mode or comp_pool is not large enough */
1215 if (dev->caps.comp_pool == 0 ||
1216 dev->caps.num_ports > dev->caps.comp_pool)
e605b743
SP		 1217 return;
1218
1219 eq_per_port = rounddown_pow_of_two(dev->caps.comp_pool/
1220 dev->caps.num_ports);
1221
1222 /* Init eq table */
1223 added_eqs = 0;
1224 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
1225 added_eqs += eq_per_port;
1226
1227 total_eqs = dev->caps.num_comp_vectors + added_eqs;
1228
1229 ibdev->eq_table = kzalloc(total_eqs * sizeof(int), GFP_KERNEL);
1230 if (!ibdev->eq_table)
1231 return;
1232
1233 ibdev->eq_added = added_eqs;
1234
1235 eq = 0;
1236 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) {
1237 for (j = 0; j < eq_per_port; j++) {
1238 sprintf(name, "mlx4-ib-%d-%d@%s",
1239 i, j, dev->pdev->bus->name);
1240 /* Set IRQ for specific name (per ring) */
d9236c3f
AV		 1241 if (mlx4_assign_eq(dev, name, NULL,
1242 &ibdev->eq_table[eq])) {
e605b743
SP		 1243 /* Use legacy (same as mlx4_en driver) */
1244 pr_warn("Can't allocate EQ %d; reverting to legacy\n", eq);
1245 ibdev->eq_table[eq] =
1246 (eq % dev->caps.num_comp_vectors);
1247 }
1248 eq++;
1249 }
1250 }
1251
1252 /* Fill the reset of the vector with legacy EQ */
1253 for (i = 0, eq = added_eqs; i < dev->caps.num_comp_vectors; i++)
1254 ibdev->eq_table[eq++] = i;
1255
1256 /* Advertise the new number of EQs to clients */
1257 ibdev->ib_dev.num_comp_vectors = total_eqs;
1258}
1259
1260static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
1261{
1262 int i;
3aac6ff1
SP		 1263
1264 /* no additional eqs were added */
1265 if (!ibdev->eq_table)
1266 return;
e605b743
SP		 1267
1268 /* Reset the advertised EQ number */
1269 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
1270
1271 /* Free only the added eqs */
1272 for (i = 0; i < ibdev->eq_added; i++) {
1273 /* Don't free legacy eqs if used */
1274 if (ibdev->eq_table[i] <= dev->caps.num_comp_vectors)
1275 continue;
1276 mlx4_release_eq(dev, ibdev->eq_table[i]);
1277 }
1278
e605b743 1279 kfree(ibdev->eq_table);
e605b743
SP		 1280}
1281
225c7b1f
RD		 1282static void *mlx4_ib_add(struct mlx4_dev *dev)
1283{
1284 struct mlx4_ib_dev *ibdev;
22e7ef9c 1285 int num_ports = 0;
035b1032 1286 int i, j;
fa417f7b
EC		 1287 int err;
1288 struct mlx4_ib_iboe *iboe;
225c7b1f 1289
987c8f8f 1290 pr_info_once("%s", mlx4_ib_version);
68f3948d 1291
8e59d254 1292 if (mlx4_is_mfunc(dev)) {
987c8f8f 1293 pr_warn("IB not yet supported in SRIOV\n");
8e59d254
JM		 1294 return NULL;
1295 }
1296
fa417f7b 1297 mlx4_foreach_ib_transport_port(i, dev)
22e7ef9c
RD		 1298 num_ports++;
1299
1300 /* No point in registering a device with no ports... */
1301 if (num_ports == 0)
1302 return NULL;
1303
225c7b1f
RD		 1304 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
1305 if (!ibdev) {
1306 dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
1307 return NULL;
1308 }
1309
fa417f7b
EC		 1310 iboe = &ibdev->iboe;
1311
225c7b1f
RD		 1312 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
1313 goto err_dealloc;
1314
1315 if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
1316 goto err_pd;
1317
4979d18f
RD		 1318 ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT,
1319 PAGE_SIZE);
225c7b1f
RD		 1320 if (!ibdev->uar_map)
1321 goto err_uar;
26c6bc7b 1322 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
225c7b1f 1323
225c7b1f
RD		 1324 ibdev->dev = dev;
1325
1326 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
1327 ibdev->ib_dev.owner = THIS_MODULE;
1328 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
95d04f07 1329 ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey;
22e7ef9c 1330 ibdev->num_ports = num_ports;
7ff93f8b 1331 ibdev->ib_dev.phys_port_cnt = ibdev->num_ports;
b8dd786f 1332 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
225c7b1f
RD		 1333 ibdev->ib_dev.dma_device = &dev->pdev->dev;
1334
1335 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
1336 ibdev->ib_dev.uverbs_cmd_mask =
1337 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1338 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1339 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1340 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1341 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1342 (1ull << IB_USER_VERBS_CMD_REG_MR) |
1343 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1344 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1345 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
bbf8eed1 1346 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
225c7b1f
RD		 1347 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1348 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1349 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
6a775e2b 1350 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
225c7b1f
RD		 1351 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1352 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
1353 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
1354 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
1355 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
65541cb7 1356 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
18abd5ea 1357 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) |
42849b26
SH		 1358 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) |
1359 (1ull << IB_USER_VERBS_CMD_OPEN_QP);
225c7b1f
RD		 1360
1361 ibdev->ib_dev.query_device = mlx4_ib_query_device;
1362 ibdev->ib_dev.query_port = mlx4_ib_query_port;
fa417f7b 1363 ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer;
225c7b1f
RD		 1364 ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
1365 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
1366 ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
1367 ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
1368 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
1369 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
1370 ibdev->ib_dev.mmap = mlx4_ib_mmap;
1371 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
1372 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
1373 ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
1374 ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
1375 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
1376 ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
1377 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
65541cb7 1378 ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
225c7b1f
RD		 1379 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
1380 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
1381 ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
1382 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
6a775e2b 1383 ibdev->ib_dev.query_qp = mlx4_ib_query_qp;
225c7b1f
RD		 1384 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
1385 ibdev->ib_dev.post_send = mlx4_ib_post_send;
1386 ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
1387 ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
3fdcb97f 1388 ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq;
bbf8eed1 1389 ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq;
225c7b1f
RD		 1390 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
1391 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
1392 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
1393 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
1394 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
1395 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
95d04f07
RD		 1396 ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr;
1397 ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list;
1398 ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list;
225c7b1f
RD		 1399 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
1400 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
1401 ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
1402
8ad11fb6
JM		 1403 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc;
1404 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr;
1405 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
1406 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
1407
012a8ff5
SH		 1408 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
1409 ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
1410 ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
1411 ibdev->ib_dev.uverbs_cmd_mask |=
1412 (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
1413 (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
1414 }
1415
e605b743
SP		 1416 mlx4_ib_alloc_eqs(dev, ibdev);
1417
fa417f7b
EC		 1418 spin_lock_init(&iboe->lock);
1419
225c7b1f
RD		 1420 if (init_node_data(ibdev))
1421 goto err_map;
1422
cfcde11c
OG		 1423 for (i = 0; i < ibdev->num_ports; ++i) {
1424 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
1425 IB_LINK_LAYER_ETHERNET) {
1426 err = mlx4_counter_alloc(ibdev->dev, &ibdev->counters[i]);
1427 if (err)
1428 ibdev->counters[i] = -1;
1429 } else
1430 ibdev->counters[i] = -1;
1431 }
1432
225c7b1f
RD		 1433 spin_lock_init(&ibdev->sm_lock);
1434 mutex_init(&ibdev->cap_mask_mutex);
1435
9a6edb60 1436 if (ib_register_device(&ibdev->ib_dev, NULL))
cfcde11c 1437 goto err_counter;
225c7b1f
RD		 1438
1439 if (mlx4_ib_mad_init(ibdev))
1440 goto err_reg;
1441
fc06573d
JM		 1442 if (mlx4_ib_init_sriov(ibdev))
1443 goto err_mad;
1444
fa417f7b
EC		 1445 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE && !iboe->nb.notifier_call) {
1446 iboe->nb.notifier_call = mlx4_ib_netdev_event;
1447 err = register_netdevice_notifier(&iboe->nb);
1448 if (err)
fc06573d 1449 goto err_sriov;
fa417f7b
EC		 1450 }
1451
035b1032 1452 for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
f4e91eb4 1453 if (device_create_file(&ibdev->ib_dev.dev,
035b1032 1454 mlx4_class_attributes[j]))
fa417f7b 1455 goto err_notif;
cd9281d8
JM		 1456 }
1457
3b4a8cd5
JM		 1458 ibdev->ib_active = true;
1459
54679e14
JM		 1460 if (mlx4_is_mfunc(ibdev->dev))
1461 init_pkeys(ibdev);
1462
225c7b1f
RD		 1463 return ibdev;
1464
fa417f7b
EC		 1465err_notif:
1466 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
987c8f8f 1467 pr_warn("failure unregistering notifier\n");
fa417f7b
EC		 1468 flush_workqueue(wq);
1469
fc06573d
JM		 1470err_sriov:
1471 mlx4_ib_close_sriov(ibdev);
1472
1473err_mad:
1474 mlx4_ib_mad_cleanup(ibdev);
1475
225c7b1f
RD		 1476err_reg:
1477 ib_unregister_device(&ibdev->ib_dev);
1478
cfcde11c
OG		 1479err_counter:
1480 for (; i; --i)
4af3ce0d
RD		 1481 if (ibdev->counters[i - 1] != -1)
1482 mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]);
cfcde11c 1483
225c7b1f
RD		 1484err_map:
1485 iounmap(ibdev->uar_map);
1486
1487err_uar:
1488 mlx4_uar_free(dev, &ibdev->priv_uar);
1489
1490err_pd:
1491 mlx4_pd_free(dev, ibdev->priv_pdn);
1492
1493err_dealloc:
1494 ib_dealloc_device(&ibdev->ib_dev);
1495
1496 return NULL;
1497}
1498
1499static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
1500{
1501 struct mlx4_ib_dev *ibdev = ibdev_ptr;
1502 int p;
1503
fc06573d 1504 mlx4_ib_close_sriov(ibdev);
a6a47771
YP		 1505 mlx4_ib_mad_cleanup(ibdev);
1506 ib_unregister_device(&ibdev->ib_dev);
fa417f7b
EC		 1507 if (ibdev->iboe.nb.notifier_call) {
1508 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
987c8f8f 1509 pr_warn("failure unregistering notifier\n");
fa417f7b
EC		 1510 ibdev->iboe.nb.notifier_call = NULL;
1511 }
1512 iounmap(ibdev->uar_map);
cfcde11c 1513 for (p = 0; p < ibdev->num_ports; ++p)
4af3ce0d
RD		 1514 if (ibdev->counters[p] != -1)
1515 mlx4_counter_free(ibdev->dev, ibdev->counters[p]);
fa417f7b 1516 mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
225c7b1f
RD		 1517 mlx4_CLOSE_PORT(dev, p);
1518
e605b743
SP		 1519 mlx4_ib_free_eqs(dev, ibdev);
1520
225c7b1f
RD		 1521 mlx4_uar_free(dev, &ibdev->priv_uar);
1522 mlx4_pd_free(dev, ibdev->priv_pdn);
1523 ib_dealloc_device(&ibdev->ib_dev);
1524}
1525
fc06573d
JM		 1526static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
1527{
1528 struct mlx4_ib_demux_work **dm = NULL;
1529 struct mlx4_dev *dev = ibdev->dev;
1530 int i;
1531 unsigned long flags;
1532
1533 if (!mlx4_is_master(dev))
1534 return;
1535
1536 dm = kcalloc(dev->caps.num_ports, sizeof *dm, GFP_ATOMIC);
1537 if (!dm) {
1538 pr_err("failed to allocate memory for tunneling qp update\n");
1539 goto out;
1540 }
1541
1542 for (i = 0; i < dev->caps.num_ports; i++) {
1543 dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
1544 if (!dm[i]) {
1545 pr_err("failed to allocate memory for tunneling qp update work struct\n");
1546 for (i = 0; i < dev->caps.num_ports; i++) {
1547 if (dm[i])
1548 kfree(dm[i]);
1549 }
1550 goto out;
1551 }
1552 }
1553 /* initialize or tear down tunnel QPs for the slave */
1554 for (i = 0; i < dev->caps.num_ports; i++) {
1555 INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work);
1556 dm[i]->port = i + 1;
1557 dm[i]->slave = slave;
1558 dm[i]->do_init = do_init;
1559 dm[i]->dev = ibdev;
1560 spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags);
1561 if (!ibdev->sriov.is_going_down)
1562 queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work);
1563 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
1564 }
1565out:
1566 if (dm)
1567 kfree(dm);
1568 return;
1569}
1570
225c7b1f 1571static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
00f5ce99 1572 enum mlx4_dev_event event, unsigned long param)
225c7b1f
RD		 1573{
1574 struct ib_event ibev;
7ff93f8b 1575 struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
00f5ce99
JM		 1576 struct mlx4_eqe *eqe = NULL;
1577 struct ib_event_work *ew;
fc06573d 1578 int p = 0;
00f5ce99
JM		 1579
1580 if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE)
1581 eqe = (struct mlx4_eqe *)param;
1582 else
fc06573d 1583 p = (int) param;
225c7b1f
RD		 1584
1585 switch (event) {
37608eea 1586 case MLX4_DEV_EVENT_PORT_UP:
fc06573d
JM		 1587 if (p > ibdev->num_ports)
1588 return;
a0c64a17
JM		 1589 if (mlx4_is_master(dev) &&
1590 rdma_port_get_link_layer(&ibdev->ib_dev, p) ==
1591 IB_LINK_LAYER_INFINIBAND) {
1592 mlx4_ib_invalidate_all_guid_record(ibdev, p);
1593 }
37608eea 1594 ibev.event = IB_EVENT_PORT_ACTIVE;
225c7b1f
RD		 1595 break;
1596
37608eea 1597 case MLX4_DEV_EVENT_PORT_DOWN:
fc06573d
JM		 1598 if (p > ibdev->num_ports)
1599 return;
37608eea
RD		 1600 ibev.event = IB_EVENT_PORT_ERR;
1601 break;
1602
1603 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
3b4a8cd5 1604 ibdev->ib_active = false;
225c7b1f
RD		 1605 ibev.event = IB_EVENT_DEVICE_FATAL;
1606 break;
1607
00f5ce99
JM		 1608 case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
1609 ew = kmalloc(sizeof *ew, GFP_ATOMIC);
1610 if (!ew) {
1611 pr_err("failed to allocate memory for events work\n");
1612 break;
1613 }
1614
1615 INIT_WORK(&ew->work, handle_port_mgmt_change_event);
1616 memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
1617 ew->ib_dev = ibdev;
1618 handle_port_mgmt_change_event(&ew->work);
1619 return;
1620
fc06573d
JM		 1621 case MLX4_DEV_EVENT_SLAVE_INIT:
1622 /* here, p is the slave id */
1623 do_slave_init(ibdev, p, 1);
1624 return;
1625
1626 case MLX4_DEV_EVENT_SLAVE_SHUTDOWN:
1627 /* here, p is the slave id */
1628 do_slave_init(ibdev, p, 0);
1629 return;
1630
225c7b1f
RD		 1631 default:
1632 return;
1633 }
1634
1635 ibev.device = ibdev_ptr;
fc06573d 1636 ibev.element.port_num = (u8) p;
225c7b1f
RD		 1637
1638 ib_dispatch_event(&ibev);
1639}
1640
1641static struct mlx4_interface mlx4_ib_interface = {
fa417f7b
EC		 1642 .add = mlx4_ib_add,
1643 .remove = mlx4_ib_remove,
1644 .event = mlx4_ib_event,
0345584e 1645 .protocol = MLX4_PROT_IB_IPV6
225c7b1f
RD		 1646};
1647
1648static int __init mlx4_ib_init(void)
1649{
fa417f7b
EC		 1650 int err;
1651
1652 wq = create_singlethread_workqueue("mlx4_ib");
1653 if (!wq)
1654 return -ENOMEM;
1655
b9c5d6a6
OD		 1656 err = mlx4_ib_mcg_init();
1657 if (err)
1658 goto clean_wq;
1659
fa417f7b 1660 err = mlx4_register_interface(&mlx4_ib_interface);
b9c5d6a6
OD		 1661 if (err)
1662 goto clean_mcg;
fa417f7b
EC		 1663
1664 return 0;
b9c5d6a6
OD		 1665
1666clean_mcg:
1667 mlx4_ib_mcg_destroy();
1668
1669clean_wq:
1670 destroy_workqueue(wq);
1671 return err;
225c7b1f
RD		 1672}
1673
1674static void __exit mlx4_ib_cleanup(void)
1675{
1676 mlx4_unregister_interface(&mlx4_ib_interface);
b9c5d6a6 1677 mlx4_ib_mcg_destroy();
fa417f7b 1678 destroy_workqueue(wq);
225c7b1f
RD		 1679}
1680
1681module_init(mlx4_ib_init);
1682module_exit(mlx4_ib_cleanup);
Linux kernel - Deliverables
This page took 0.453773 seconds and 5 git commands to generate.