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Linux 3.2-rc4
[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
53#define DRV_NAME "mlx4_ib"
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
68f3948d 62static const char mlx4_ib_version[] =
225c7b1f
RD		 63 DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
64 DRV_VERSION " (" DRV_RELDATE ")\n";
65
fa417f7b
EC		 66struct 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
73static struct workqueue_struct *wq;
74
225c7b1f
RD		 75static 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		 83static union ib_gid zgid;
84
225c7b1f
RD		 85static 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;
143 props->max_qp_wr = dev->dev->caps.max_wqes;
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;
6fa8f719 160 props->masked_atomic_cap = IB_ATOMIC_HCA;
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;
166 props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1;
167
168out:
169 kfree(in_mad);
170 kfree(out_mad);
171
172 return err;
173}
174
fa417f7b
EC		 175static enum rdma_link_layer
176mlx4_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
fa417f7b
EC		 180 return dev->caps.port_mask & (1 << (port_num - 1)) ?
181 IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
182}
225c7b1f 183
fa417f7b
EC		 184static int ib_link_query_port(struct ib_device *ibdev, u8 port,
185 struct ib_port_attr *props,
a5e12dff 186 struct ib_smp *in_mad,
fa417f7b
EC		 187 struct ib_smp *out_mad)
188{
a5e12dff
MA		 189 int ext_active_speed;
190 int err;
191
225c7b1f
RD		 192 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
193 props->lmc = out_mad->data[34] & 0x7;
194 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
195 props->sm_sl = out_mad->data[36] & 0xf;
196 props->state = out_mad->data[32] & 0xf;
197 props->phys_state = out_mad->data[33] >> 4;
198 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
5ae2a7a8 199 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
149983af 200 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
5ae2a7a8 201 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
225c7b1f
RD		 202 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
203 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
204 props->active_width = out_mad->data[31] & 0xf;
205 props->active_speed = out_mad->data[35] >> 4;
206 props->max_mtu = out_mad->data[41] & 0xf;
207 props->active_mtu = out_mad->data[36] >> 4;
208 props->subnet_timeout = out_mad->data[51] & 0x1f;
209 props->max_vl_num = out_mad->data[37] >> 4;
210 props->init_type_reply = out_mad->data[41] >> 4;
211
a5e12dff
MA		 212 /* Check if extended speeds (EDR/FDR/...) are supported */
213 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
214 ext_active_speed = out_mad->data[62] >> 4;
215
216 switch (ext_active_speed) {
217 case 1:
218 props->active_speed = 16; /* FDR */
219 break;
220 case 2:
221 props->active_speed = 32; /* EDR */
222 break;
223 }
224 }
225
226 /* If reported active speed is QDR, check if is FDR-10 */
227 if (props->active_speed == 4) {
228 if (to_mdev(ibdev)->dev->caps.ext_port_cap[port] &
229 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) {
230 init_query_mad(in_mad);
231 in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
232 in_mad->attr_mod = cpu_to_be32(port);
233
234 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port,
235 NULL, NULL, in_mad, out_mad);
236 if (err)
237 return err;
238
239 /* Checking LinkSpeedActive for FDR-10 */
240 if (out_mad->data[15] & 0x1)
241 props->active_speed = 8;
242 }
243 }
244
fa417f7b
EC		 245 return 0;
246}
247
248static u8 state_to_phys_state(enum ib_port_state state)
249{
250 return state == IB_PORT_ACTIVE ? 5 : 3;
251}
252
253static int eth_link_query_port(struct ib_device *ibdev, u8 port,
254 struct ib_port_attr *props,
255 struct ib_smp *out_mad)
256{
257 struct mlx4_ib_iboe *iboe = &to_mdev(ibdev)->iboe;
258 struct net_device *ndev;
259 enum ib_mtu tmp;
260
328266c5 261 props->active_width = IB_WIDTH_1X;
fa417f7b
EC		 262 props->active_speed = 4;
263 props->port_cap_flags = IB_PORT_CM_SUP;
264 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
265 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
266 props->pkey_tbl_len = 1;
267 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
268 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
bcacb897 269 props->max_mtu = IB_MTU_4096;
fa417f7b
EC		 270 props->subnet_timeout = 0;
271 props->max_vl_num = out_mad->data[37] >> 4;
272 props->init_type_reply = 0;
273 props->state = IB_PORT_DOWN;
274 props->phys_state = state_to_phys_state(props->state);
275 props->active_mtu = IB_MTU_256;
276 spin_lock(&iboe->lock);
277 ndev = iboe->netdevs[port - 1];
278 if (!ndev)
279 goto out;
280
281 tmp = iboe_get_mtu(ndev->mtu);
282 props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
283
21d60609 284 props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ?
fa417f7b
EC		 285 IB_PORT_ACTIVE : IB_PORT_DOWN;
286 props->phys_state = state_to_phys_state(props->state);
287
288out:
289 spin_unlock(&iboe->lock);
290 return 0;
291}
292
293static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
294 struct ib_port_attr *props)
295{
296 struct ib_smp *in_mad = NULL;
297 struct ib_smp *out_mad = NULL;
298 int err = -ENOMEM;
299
300 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
301 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
302 if (!in_mad || !out_mad)
303 goto out;
304
305 memset(props, 0, sizeof *props);
306
307 init_query_mad(in_mad);
308 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
309 in_mad->attr_mod = cpu_to_be32(port);
310
311 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
312 if (err)
313 goto out;
314
315 err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
a5e12dff 316 ib_link_query_port(ibdev, port, props, in_mad, out_mad) :
fa417f7b
EC		 317 eth_link_query_port(ibdev, port, props, out_mad);
318
225c7b1f
RD		 319out:
320 kfree(in_mad);
321 kfree(out_mad);
322
323 return err;
324}
325
fa417f7b
EC		 326static int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
327 union ib_gid *gid)
225c7b1f
RD		 328{
329 struct ib_smp *in_mad = NULL;
330 struct ib_smp *out_mad = NULL;
331 int err = -ENOMEM;
332
333 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
334 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
335 if (!in_mad || !out_mad)
336 goto out;
337
338 init_query_mad(in_mad);
339 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
340 in_mad->attr_mod = cpu_to_be32(port);
341
342 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
343 if (err)
344 goto out;
345
346 memcpy(gid->raw, out_mad->data + 8, 8);
347
348 init_query_mad(in_mad);
349 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
350 in_mad->attr_mod = cpu_to_be32(index / 8);
351
352 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
353 if (err)
354 goto out;
355
356 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
357
358out:
359 kfree(in_mad);
360 kfree(out_mad);
361 return err;
362}
363
fa417f7b
EC		 364static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index,
365 union ib_gid *gid)
366{
367 struct mlx4_ib_dev *dev = to_mdev(ibdev);
368
369 *gid = dev->iboe.gid_table[port - 1][index];
370
371 return 0;
372}
373
374static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
375 union ib_gid *gid)
376{
377 if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND)
378 return __mlx4_ib_query_gid(ibdev, port, index, gid);
379 else
380 return iboe_query_gid(ibdev, port, index, gid);
381}
382
225c7b1f
RD		 383static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
384 u16 *pkey)
385{
386 struct ib_smp *in_mad = NULL;
387 struct ib_smp *out_mad = NULL;
388 int err = -ENOMEM;
389
390 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
391 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
392 if (!in_mad || !out_mad)
393 goto out;
394
395 init_query_mad(in_mad);
396 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
397 in_mad->attr_mod = cpu_to_be32(index / 32);
398
399 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
400 if (err)
401 goto out;
402
403 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
404
405out:
406 kfree(in_mad);
407 kfree(out_mad);
408 return err;
409}
410
411static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
412 struct ib_device_modify *props)
413{
d0d68b86
JM		 414 struct mlx4_cmd_mailbox *mailbox;
415
225c7b1f
RD		 416 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
417 return -EOPNOTSUPP;
418
d0d68b86
JM		 419 if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
420 return 0;
421
422 spin_lock(&to_mdev(ibdev)->sm_lock);
423 memcpy(ibdev->node_desc, props->node_desc, 64);
424 spin_unlock(&to_mdev(ibdev)->sm_lock);
425
426 /*
427 * If possible, pass node desc to FW, so it can generate
428 * a 144 trap. If cmd fails, just ignore.
429 */
430 mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
431 if (IS_ERR(mailbox))
432 return 0;
433
434 memset(mailbox->buf, 0, 256);
435 memcpy(mailbox->buf, props->node_desc, 64);
436 mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
437 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A);
438
439 mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
225c7b1f
RD		 440
441 return 0;
442}
443
444static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
445 u32 cap_mask)
446{
447 struct mlx4_cmd_mailbox *mailbox;
448 int err;
fa417f7b 449 u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
225c7b1f
RD		 450
451 mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
452 if (IS_ERR(mailbox))
453 return PTR_ERR(mailbox);
454
455 memset(mailbox->buf, 0, 256);
5ae2a7a8
RD		 456
457 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
458 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6;
459 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
460 } else {
461 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols;
462 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
463 }
225c7b1f 464
fa417f7b 465 err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT,
225c7b1f
RD		 466 MLX4_CMD_TIME_CLASS_B);
467
468 mlx4_free_cmd_mailbox(dev->dev, mailbox);
469 return err;
470}
471
472static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
473 struct ib_port_modify *props)
474{
475 struct ib_port_attr attr;
476 u32 cap_mask;
477 int err;
478
479 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
480
481 err = mlx4_ib_query_port(ibdev, port, &attr);
482 if (err)
483 goto out;
484
485 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
486 ~props->clr_port_cap_mask;
487
488 err = mlx4_SET_PORT(to_mdev(ibdev), port,
489 !!(mask & IB_PORT_RESET_QKEY_CNTR),
490 cap_mask);
491
492out:
493 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
494 return err;
495}
496
497static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
498 struct ib_udata *udata)
499{
500 struct mlx4_ib_dev *dev = to_mdev(ibdev);
501 struct mlx4_ib_ucontext *context;
502 struct mlx4_ib_alloc_ucontext_resp resp;
503 int err;
504
3b4a8cd5
JM		 505 if (!dev->ib_active)
506 return ERR_PTR(-EAGAIN);
507
225c7b1f
RD		 508 resp.qp_tab_size = dev->dev->caps.num_qps;
509 resp.bf_reg_size = dev->dev->caps.bf_reg_size;
510 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
511
512 context = kmalloc(sizeof *context, GFP_KERNEL);
513 if (!context)
514 return ERR_PTR(-ENOMEM);
515
516 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
517 if (err) {
518 kfree(context);
519 return ERR_PTR(err);
520 }
521
522 INIT_LIST_HEAD(&context->db_page_list);
523 mutex_init(&context->db_page_mutex);
524
525 err = ib_copy_to_udata(udata, &resp, sizeof resp);
526 if (err) {
527 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
528 kfree(context);
529 return ERR_PTR(-EFAULT);
530 }
531
532 return &context->ibucontext;
533}
534
535static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
536{
537 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
538
539 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
540 kfree(context);
541
542 return 0;
543}
544
545static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
546{
547 struct mlx4_ib_dev *dev = to_mdev(context->device);
548
549 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
550 return -EINVAL;
551
552 if (vma->vm_pgoff == 0) {
553 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
554
555 if (io_remap_pfn_range(vma, vma->vm_start,
556 to_mucontext(context)->uar.pfn,
557 PAGE_SIZE, vma->vm_page_prot))
558 return -EAGAIN;
559 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
e1d60ec6 560 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
225c7b1f
RD		 561
562 if (io_remap_pfn_range(vma, vma->vm_start,
563 to_mucontext(context)->uar.pfn +
564 dev->dev->caps.num_uars,
565 PAGE_SIZE, vma->vm_page_prot))
566 return -EAGAIN;
567 } else
568 return -EINVAL;
569
570 return 0;
571}
572
573static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
574 struct ib_ucontext *context,
575 struct ib_udata *udata)
576{
577 struct mlx4_ib_pd *pd;
578 int err;
579
580 pd = kmalloc(sizeof *pd, GFP_KERNEL);
581 if (!pd)
582 return ERR_PTR(-ENOMEM);
583
584 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
585 if (err) {
586 kfree(pd);
587 return ERR_PTR(err);
588 }
589
590 if (context)
591 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
592 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
593 kfree(pd);
594 return ERR_PTR(-EFAULT);
595 }
596
597 return &pd->ibpd;
598}
599
600static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
601{
602 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
603 kfree(pd);
604
605 return 0;
606}
607
012a8ff5
SH		 608static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
609 struct ib_ucontext *context,
610 struct ib_udata *udata)
611{
612 struct mlx4_ib_xrcd *xrcd;
613 int err;
614
615 if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
616 return ERR_PTR(-ENOSYS);
617
618 xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
619 if (!xrcd)
620 return ERR_PTR(-ENOMEM);
621
622 err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
623 if (err)
624 goto err1;
625
626 xrcd->pd = ib_alloc_pd(ibdev);
627 if (IS_ERR(xrcd->pd)) {
628 err = PTR_ERR(xrcd->pd);
629 goto err2;
630 }
631
632 xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0);
633 if (IS_ERR(xrcd->cq)) {
634 err = PTR_ERR(xrcd->cq);
635 goto err3;
636 }
637
638 return &xrcd->ibxrcd;
639
640err3:
641 ib_dealloc_pd(xrcd->pd);
642err2:
643 mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
644err1:
645 kfree(xrcd);
646 return ERR_PTR(err);
647}
648
649static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
650{
651 ib_destroy_cq(to_mxrcd(xrcd)->cq);
652 ib_dealloc_pd(to_mxrcd(xrcd)->pd);
653 mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
654 kfree(xrcd);
655
656 return 0;
657}
658
fa417f7b
EC		 659static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
660{
661 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
662 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
663 struct mlx4_ib_gid_entry *ge;
664
665 ge = kzalloc(sizeof *ge, GFP_KERNEL);
666 if (!ge)
667 return -ENOMEM;
668
669 ge->gid = *gid;
670 if (mlx4_ib_add_mc(mdev, mqp, gid)) {
671 ge->port = mqp->port;
672 ge->added = 1;
673 }
674
675 mutex_lock(&mqp->mutex);
676 list_add_tail(&ge->list, &mqp->gid_list);
677 mutex_unlock(&mqp->mutex);
678
679 return 0;
680}
681
682int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
683 union ib_gid *gid)
684{
685 u8 mac[6];
686 struct net_device *ndev;
687 int ret = 0;
688
689 if (!mqp->port)
690 return 0;
691
692 spin_lock(&mdev->iboe.lock);
693 ndev = mdev->iboe.netdevs[mqp->port - 1];
694 if (ndev)
695 dev_hold(ndev);
696 spin_unlock(&mdev->iboe.lock);
697
698 if (ndev) {
699 rdma_get_mcast_mac((struct in6_addr *)gid, mac);
700 rtnl_lock();
701 dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac);
702 ret = 1;
703 rtnl_unlock();
704 dev_put(ndev);
705 }
706
707 return ret;
708}
709
225c7b1f
RD		 710static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
711{
fa417f7b
EC		 712 int err;
713 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
714 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
715
da995a8a
AS		 716 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw,
717 !!(mqp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
0345584e 718 MLX4_PROT_IB_IPV6);
fa417f7b
EC		 719 if (err)
720 return err;
721
722 err = add_gid_entry(ibqp, gid);
723 if (err)
724 goto err_add;
725
726 return 0;
727
728err_add:
0345584e 729 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, MLX4_PROT_IB_IPV6);
fa417f7b
EC		 730 return err;
731}
732
733static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
734{
735 struct mlx4_ib_gid_entry *ge;
736 struct mlx4_ib_gid_entry *tmp;
737 struct mlx4_ib_gid_entry *ret = NULL;
738
739 list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
740 if (!memcmp(raw, ge->gid.raw, 16)) {
741 ret = ge;
742 break;
743 }
744 }
745
746 return ret;
225c7b1f
RD		 747}
748
749static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
750{
fa417f7b
EC		 751 int err;
752 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
753 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
754 u8 mac[6];
755 struct net_device *ndev;
756 struct mlx4_ib_gid_entry *ge;
757
758 err = mlx4_multicast_detach(mdev->dev,
0345584e 759 &mqp->mqp, gid->raw, MLX4_PROT_IB_IPV6);
fa417f7b
EC		 760 if (err)
761 return err;
762
763 mutex_lock(&mqp->mutex);
764 ge = find_gid_entry(mqp, gid->raw);
765 if (ge) {
766 spin_lock(&mdev->iboe.lock);
767 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
768 if (ndev)
769 dev_hold(ndev);
770 spin_unlock(&mdev->iboe.lock);
771 rdma_get_mcast_mac((struct in6_addr *)gid, mac);
772 if (ndev) {
773 rtnl_lock();
774 dev_mc_del(mdev->iboe.netdevs[ge->port - 1], mac);
775 rtnl_unlock();
776 dev_put(ndev);
777 }
778 list_del(&ge->list);
779 kfree(ge);
780 } else
781 printk(KERN_WARNING "could not find mgid entry\n");
782
783 mutex_unlock(&mqp->mutex);
784
785 return 0;
225c7b1f
RD		 786}
787
788static int init_node_data(struct mlx4_ib_dev *dev)
789{
790 struct ib_smp *in_mad = NULL;
791 struct ib_smp *out_mad = NULL;
792 int err = -ENOMEM;
793
794 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
795 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
796 if (!in_mad || !out_mad)
797 goto out;
798
799 init_query_mad(in_mad);
800 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
801
802 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
803 if (err)
804 goto out;
805
806 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
807
808 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
809
810 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
811 if (err)
812 goto out;
813
814 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
815
816out:
817 kfree(in_mad);
818 kfree(out_mad);
819 return err;
820}
821
f4e91eb4
TJ		 822static ssize_t show_hca(struct device *device, struct device_attribute *attr,
823 char *buf)
cd9281d8 824{
f4e91eb4
TJ		 825 struct mlx4_ib_dev *dev =
826 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 827 return sprintf(buf, "MT%d\n", dev->dev->pdev->device);
828}
829
f4e91eb4
TJ		 830static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
831 char *buf)
cd9281d8 832{
f4e91eb4
TJ		 833 struct mlx4_ib_dev *dev =
834 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 835 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
836 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
837 (int) dev->dev->caps.fw_ver & 0xffff);
838}
839
f4e91eb4
TJ		 840static ssize_t show_rev(struct device *device, struct device_attribute *attr,
841 char *buf)
cd9281d8 842{
f4e91eb4
TJ		 843 struct mlx4_ib_dev *dev =
844 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 845 return sprintf(buf, "%x\n", dev->dev->rev_id);
846}
847
f4e91eb4
TJ		 848static ssize_t show_board(struct device *device, struct device_attribute *attr,
849 char *buf)
cd9281d8 850{
f4e91eb4
TJ		 851 struct mlx4_ib_dev *dev =
852 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
853 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
854 dev->dev->board_id);
cd9281d8
JM		 855}
856
f4e91eb4
TJ		 857static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
858static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
859static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
860static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
cd9281d8 861
f4e91eb4
TJ		 862static struct device_attribute *mlx4_class_attributes[] = {
863 &dev_attr_hw_rev,
864 &dev_attr_fw_ver,
865 &dev_attr_hca_type,
866 &dev_attr_board_id
cd9281d8
JM		 867};
868
4c3eb3ca 869static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev)
fa417f7b
EC		 870{
871 memcpy(eui, dev->dev_addr, 3);
872 memcpy(eui + 5, dev->dev_addr + 3, 3);
4c3eb3ca
EC		 873 if (vlan_id < 0x1000) {
874 eui[3] = vlan_id >> 8;
875 eui[4] = vlan_id & 0xff;
876 } else {
877 eui[3] = 0xff;
878 eui[4] = 0xfe;
879 }
fa417f7b
EC		 880 eui[0] ^= 2;
881}
882
883static void update_gids_task(struct work_struct *work)
884{
885 struct update_gid_work *gw = container_of(work, struct update_gid_work, work);
886 struct mlx4_cmd_mailbox *mailbox;
887 union ib_gid *gids;
888 int err;
889 struct mlx4_dev *dev = gw->dev->dev;
890 struct ib_event event;
891
892 mailbox = mlx4_alloc_cmd_mailbox(dev);
893 if (IS_ERR(mailbox)) {
894 printk(KERN_WARNING "update gid table failed %ld\n", PTR_ERR(mailbox));
895 return;
896 }
897
898 gids = mailbox->buf;
899 memcpy(gids, gw->gids, sizeof gw->gids);
900
901 err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port,
902 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B);
903 if (err)
904 printk(KERN_WARNING "set port command failed\n");
905 else {
906 memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids);
907 event.device = &gw->dev->ib_dev;
908 event.element.port_num = gw->port;
6451c712 909 event.event = IB_EVENT_GID_CHANGE;
fa417f7b
EC		 910 ib_dispatch_event(&event);
911 }
912
913 mlx4_free_cmd_mailbox(dev, mailbox);
914 kfree(gw);
915}
916
917static int update_ipv6_gids(struct mlx4_ib_dev *dev, int port, int clear)
918{
919 struct net_device *ndev = dev->iboe.netdevs[port - 1];
920 struct update_gid_work *work;
4c3eb3ca
EC		 921 struct net_device *tmp;
922 int i;
923 u8 *hits;
924 int ret;
925 union ib_gid gid;
926 int free;
927 int found;
928 int need_update = 0;
929 u16 vid;
fa417f7b
EC		 930
931 work = kzalloc(sizeof *work, GFP_ATOMIC);
932 if (!work)
933 return -ENOMEM;
934
4c3eb3ca
EC		 935 hits = kzalloc(128, GFP_ATOMIC);
936 if (!hits) {
937 ret = -ENOMEM;
938 goto out;
939 }
940
22f4fbd9
ED		 941 rcu_read_lock();
942 for_each_netdev_rcu(&init_net, tmp) {
4c3eb3ca
EC		 943 if (ndev && (tmp == ndev || rdma_vlan_dev_real_dev(tmp) == ndev)) {
944 gid.global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
945 vid = rdma_vlan_dev_vlan_id(tmp);
946 mlx4_addrconf_ifid_eui48(&gid.raw[8], vid, ndev);
947 found = 0;
948 free = -1;
949 for (i = 0; i < 128; ++i) {
950 if (free < 0 &&
951 !memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid))
952 free = i;
953 if (!memcmp(&dev->iboe.gid_table[port - 1][i], &gid, sizeof gid)) {
954 hits[i] = 1;
955 found = 1;
956 break;
957 }
958 }
959
960 if (!found) {
961 if (tmp == ndev &&
962 (memcmp(&dev->iboe.gid_table[port - 1][0],
963 &gid, sizeof gid) ||
964 !memcmp(&dev->iboe.gid_table[port - 1][0],
965 &zgid, sizeof gid))) {
966 dev->iboe.gid_table[port - 1][0] = gid;
967 ++need_update;
968 hits[0] = 1;
969 } else if (free >= 0) {
970 dev->iboe.gid_table[port - 1][free] = gid;
971 hits[free] = 1;
972 ++need_update;
973 }
974 }
975 }
fa417f7b 976 }
22f4fbd9 977 rcu_read_unlock();
4c3eb3ca
EC		 978
979 for (i = 0; i < 128; ++i)
980 if (!hits[i]) {
981 if (memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid))
982 ++need_update;
983 dev->iboe.gid_table[port - 1][i] = zgid;
984 }
fa417f7b 985
4c3eb3ca
EC		 986 if (need_update) {
987 memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof work->gids);
988 INIT_WORK(&work->work, update_gids_task);
989 work->port = port;
990 work->dev = dev;
991 queue_work(wq, &work->work);
992 } else
993 kfree(work);
fa417f7b 994
4c3eb3ca 995 kfree(hits);
fa417f7b 996 return 0;
4c3eb3ca
EC		 997
998out:
999 kfree(work);
1000 return ret;
fa417f7b
EC		 1001}
1002
1003static void handle_en_event(struct mlx4_ib_dev *dev, int port, unsigned long event)
1004{
1005 switch (event) {
1006 case NETDEV_UP:
4c3eb3ca 1007 case NETDEV_CHANGEADDR:
fa417f7b
EC		 1008 update_ipv6_gids(dev, port, 0);
1009 break;
1010
1011 case NETDEV_DOWN:
1012 update_ipv6_gids(dev, port, 1);
1013 dev->iboe.netdevs[port - 1] = NULL;
1014 }
1015}
1016
1017static void netdev_added(struct mlx4_ib_dev *dev, int port)
1018{
1019 update_ipv6_gids(dev, port, 0);
1020}
1021
1022static void netdev_removed(struct mlx4_ib_dev *dev, int port)
1023{
1024 update_ipv6_gids(dev, port, 1);
1025}
1026
1027static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event,
1028 void *ptr)
1029{
1030 struct net_device *dev = ptr;
1031 struct mlx4_ib_dev *ibdev;
1032 struct net_device *oldnd;
1033 struct mlx4_ib_iboe *iboe;
1034 int port;
1035
1036 if (!net_eq(dev_net(dev), &init_net))
1037 return NOTIFY_DONE;
1038
1039 ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
1040 iboe = &ibdev->iboe;
1041
1042 spin_lock(&iboe->lock);
1043 mlx4_foreach_ib_transport_port(port, ibdev->dev) {
1044 oldnd = iboe->netdevs[port - 1];
1045 iboe->netdevs[port - 1] =
0345584e 1046 mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
fa417f7b
EC		 1047 if (oldnd != iboe->netdevs[port - 1]) {
1048 if (iboe->netdevs[port - 1])
1049 netdev_added(ibdev, port);
1050 else
1051 netdev_removed(ibdev, port);
1052 }
1053 }
1054
4c3eb3ca
EC		 1055 if (dev == iboe->netdevs[0] ||
1056 (iboe->netdevs[0] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[0]))
fa417f7b 1057 handle_en_event(ibdev, 1, event);
4c3eb3ca
EC		 1058 else if (dev == iboe->netdevs[1]
1059 || (iboe->netdevs[1] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[1]))
fa417f7b
EC		 1060 handle_en_event(ibdev, 2, event);
1061
1062 spin_unlock(&iboe->lock);
1063
1064 return NOTIFY_DONE;
1065}
1066
225c7b1f
RD		 1067static void *mlx4_ib_add(struct mlx4_dev *dev)
1068{
1069 struct mlx4_ib_dev *ibdev;
22e7ef9c 1070 int num_ports = 0;
cd9281d8 1071 int i;
fa417f7b
EC		 1072 int err;
1073 struct mlx4_ib_iboe *iboe;
225c7b1f 1074
f1aa78b2 1075 printk_once(KERN_INFO "%s", mlx4_ib_version);
68f3948d 1076
fa417f7b 1077 mlx4_foreach_ib_transport_port(i, dev)
22e7ef9c
RD		 1078 num_ports++;
1079
1080 /* No point in registering a device with no ports... */
1081 if (num_ports == 0)
1082 return NULL;
1083
225c7b1f
RD		 1084 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
1085 if (!ibdev) {
1086 dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
1087 return NULL;
1088 }
1089
fa417f7b
EC		 1090 iboe = &ibdev->iboe;
1091
225c7b1f
RD		 1092 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
1093 goto err_dealloc;
1094
1095 if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
1096 goto err_pd;
1097
4979d18f
RD		 1098 ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT,
1099 PAGE_SIZE);
225c7b1f
RD		 1100 if (!ibdev->uar_map)
1101 goto err_uar;
26c6bc7b 1102 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
225c7b1f 1103
225c7b1f
RD		 1104 ibdev->dev = dev;
1105
1106 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
1107 ibdev->ib_dev.owner = THIS_MODULE;
1108 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
95d04f07 1109 ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey;
22e7ef9c 1110 ibdev->num_ports = num_ports;
7ff93f8b 1111 ibdev->ib_dev.phys_port_cnt = ibdev->num_ports;
b8dd786f 1112 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
225c7b1f
RD		 1113 ibdev->ib_dev.dma_device = &dev->pdev->dev;
1114
1115 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
1116 ibdev->ib_dev.uverbs_cmd_mask =
1117 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1118 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1119 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1120 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1121 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1122 (1ull << IB_USER_VERBS_CMD_REG_MR) |
1123 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1124 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1125 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
bbf8eed1 1126 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
225c7b1f
RD		 1127 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1128 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1129 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
6a775e2b 1130 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
225c7b1f
RD		 1131 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1132 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
1133 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
1134 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
1135 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
65541cb7 1136 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
18abd5ea 1137 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) |
42849b26
SH		 1138 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) |
1139 (1ull << IB_USER_VERBS_CMD_OPEN_QP);
225c7b1f
RD		 1140
1141 ibdev->ib_dev.query_device = mlx4_ib_query_device;
1142 ibdev->ib_dev.query_port = mlx4_ib_query_port;
fa417f7b 1143 ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer;
225c7b1f
RD		 1144 ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
1145 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
1146 ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
1147 ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
1148 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
1149 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
1150 ibdev->ib_dev.mmap = mlx4_ib_mmap;
1151 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
1152 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
1153 ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
1154 ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
1155 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
1156 ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
1157 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
65541cb7 1158 ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
225c7b1f
RD		 1159 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
1160 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
1161 ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
1162 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
6a775e2b 1163 ibdev->ib_dev.query_qp = mlx4_ib_query_qp;
225c7b1f
RD		 1164 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
1165 ibdev->ib_dev.post_send = mlx4_ib_post_send;
1166 ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
1167 ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
3fdcb97f 1168 ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq;
bbf8eed1 1169 ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq;
225c7b1f
RD		 1170 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
1171 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
1172 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
1173 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
1174 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
1175 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
95d04f07
RD		 1176 ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr;
1177 ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list;
1178 ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list;
225c7b1f
RD		 1179 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
1180 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
1181 ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
1182
8ad11fb6
JM		 1183 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc;
1184 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr;
1185 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
1186 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
1187
012a8ff5
SH		 1188 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
1189 ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
1190 ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
1191 ibdev->ib_dev.uverbs_cmd_mask |=
1192 (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
1193 (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
1194 }
1195
fa417f7b
EC		 1196 spin_lock_init(&iboe->lock);
1197
225c7b1f
RD		 1198 if (init_node_data(ibdev))
1199 goto err_map;
1200
cfcde11c
OG		 1201 for (i = 0; i < ibdev->num_ports; ++i) {
1202 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
1203 IB_LINK_LAYER_ETHERNET) {
1204 err = mlx4_counter_alloc(ibdev->dev, &ibdev->counters[i]);
1205 if (err)
1206 ibdev->counters[i] = -1;
1207 } else
1208 ibdev->counters[i] = -1;
1209 }
1210
225c7b1f
RD		 1211 spin_lock_init(&ibdev->sm_lock);
1212 mutex_init(&ibdev->cap_mask_mutex);
1213
9a6edb60 1214 if (ib_register_device(&ibdev->ib_dev, NULL))
cfcde11c 1215 goto err_counter;
225c7b1f
RD		 1216
1217 if (mlx4_ib_mad_init(ibdev))
1218 goto err_reg;
1219
fa417f7b
EC		 1220 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE && !iboe->nb.notifier_call) {
1221 iboe->nb.notifier_call = mlx4_ib_netdev_event;
1222 err = register_netdevice_notifier(&iboe->nb);
1223 if (err)
1224 goto err_reg;
1225 }
1226
cd9281d8 1227 for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) {
f4e91eb4
TJ		 1228 if (device_create_file(&ibdev->ib_dev.dev,
1229 mlx4_class_attributes[i]))
fa417f7b 1230 goto err_notif;
cd9281d8
JM		 1231 }
1232
3b4a8cd5
JM		 1233 ibdev->ib_active = true;
1234
225c7b1f
RD		 1235 return ibdev;
1236
fa417f7b
EC		 1237err_notif:
1238 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
1239 printk(KERN_WARNING "failure unregistering notifier\n");
1240 flush_workqueue(wq);
1241
225c7b1f
RD		 1242err_reg:
1243 ib_unregister_device(&ibdev->ib_dev);
1244
cfcde11c
OG		 1245err_counter:
1246 for (; i; --i)
1247 mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]);
1248
225c7b1f
RD		 1249err_map:
1250 iounmap(ibdev->uar_map);
1251
1252err_uar:
1253 mlx4_uar_free(dev, &ibdev->priv_uar);
1254
1255err_pd:
1256 mlx4_pd_free(dev, ibdev->priv_pdn);
1257
1258err_dealloc:
1259 ib_dealloc_device(&ibdev->ib_dev);
1260
1261 return NULL;
1262}
1263
1264static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
1265{
1266 struct mlx4_ib_dev *ibdev = ibdev_ptr;
1267 int p;
1268
a6a47771
YP		 1269 mlx4_ib_mad_cleanup(ibdev);
1270 ib_unregister_device(&ibdev->ib_dev);
fa417f7b
EC		 1271 if (ibdev->iboe.nb.notifier_call) {
1272 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
1273 printk(KERN_WARNING "failure unregistering notifier\n");
1274 ibdev->iboe.nb.notifier_call = NULL;
1275 }
1276 iounmap(ibdev->uar_map);
cfcde11c
OG		 1277 for (p = 0; p < ibdev->num_ports; ++p)
1278 mlx4_counter_free(ibdev->dev, ibdev->counters[p]);
fa417f7b 1279 mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
225c7b1f
RD		 1280 mlx4_CLOSE_PORT(dev, p);
1281
225c7b1f
RD		 1282 mlx4_uar_free(dev, &ibdev->priv_uar);
1283 mlx4_pd_free(dev, ibdev->priv_pdn);
1284 ib_dealloc_device(&ibdev->ib_dev);
1285}
1286
1287static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
37608eea 1288 enum mlx4_dev_event event, int port)
225c7b1f
RD		 1289{
1290 struct ib_event ibev;
7ff93f8b
YP		 1291 struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
1292
1293 if (port > ibdev->num_ports)
1294 return;
225c7b1f
RD		 1295
1296 switch (event) {
37608eea
RD		 1297 case MLX4_DEV_EVENT_PORT_UP:
1298 ibev.event = IB_EVENT_PORT_ACTIVE;
225c7b1f
RD		 1299 break;
1300
37608eea
RD		 1301 case MLX4_DEV_EVENT_PORT_DOWN:
1302 ibev.event = IB_EVENT_PORT_ERR;
1303 break;
1304
1305 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
3b4a8cd5 1306 ibdev->ib_active = false;
225c7b1f
RD		 1307 ibev.event = IB_EVENT_DEVICE_FATAL;
1308 break;
1309
1310 default:
1311 return;
1312 }
1313
1314 ibev.device = ibdev_ptr;
1315 ibev.element.port_num = port;
1316
1317 ib_dispatch_event(&ibev);
1318}
1319
1320static struct mlx4_interface mlx4_ib_interface = {
fa417f7b
EC		 1321 .add = mlx4_ib_add,
1322 .remove = mlx4_ib_remove,
1323 .event = mlx4_ib_event,
0345584e 1324 .protocol = MLX4_PROT_IB_IPV6
225c7b1f
RD		 1325};
1326
1327static int __init mlx4_ib_init(void)
1328{
fa417f7b
EC		 1329 int err;
1330
1331 wq = create_singlethread_workqueue("mlx4_ib");
1332 if (!wq)
1333 return -ENOMEM;
1334
1335 err = mlx4_register_interface(&mlx4_ib_interface);
1336 if (err) {
1337 destroy_workqueue(wq);
1338 return err;
1339 }
1340
1341 return 0;
225c7b1f
RD		 1342}
1343
1344static void __exit mlx4_ib_cleanup(void)
1345{
1346 mlx4_unregister_interface(&mlx4_ib_interface);
fa417f7b 1347 destroy_workqueue(wq);
225c7b1f
RD		 1348}
1349
1350module_init(mlx4_ib_init);
1351module_exit(mlx4_ib_cleanup);
Linux kernel - Deliverables
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