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IB/mlx4: Add support for XRC QPs
[linux-2.6-block.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,
186 struct ib_smp *out_mad)
187{
225c7b1f
RD		 188 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
189 props->lmc = out_mad->data[34] & 0x7;
190 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
191 props->sm_sl = out_mad->data[36] & 0xf;
192 props->state = out_mad->data[32] & 0xf;
193 props->phys_state = out_mad->data[33] >> 4;
194 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
5ae2a7a8 195 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
149983af 196 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
5ae2a7a8 197 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
225c7b1f
RD		 198 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
199 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
200 props->active_width = out_mad->data[31] & 0xf;
201 props->active_speed = out_mad->data[35] >> 4;
202 props->max_mtu = out_mad->data[41] & 0xf;
203 props->active_mtu = out_mad->data[36] >> 4;
204 props->subnet_timeout = out_mad->data[51] & 0x1f;
205 props->max_vl_num = out_mad->data[37] >> 4;
206 props->init_type_reply = out_mad->data[41] >> 4;
207
fa417f7b
EC		 208 return 0;
209}
210
211static u8 state_to_phys_state(enum ib_port_state state)
212{
213 return state == IB_PORT_ACTIVE ? 5 : 3;
214}
215
216static int eth_link_query_port(struct ib_device *ibdev, u8 port,
217 struct ib_port_attr *props,
218 struct ib_smp *out_mad)
219{
220 struct mlx4_ib_iboe *iboe = &to_mdev(ibdev)->iboe;
221 struct net_device *ndev;
222 enum ib_mtu tmp;
223
328266c5 224 props->active_width = IB_WIDTH_1X;
fa417f7b
EC		 225 props->active_speed = 4;
226 props->port_cap_flags = IB_PORT_CM_SUP;
227 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
228 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
229 props->pkey_tbl_len = 1;
230 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
231 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
232 props->max_mtu = IB_MTU_2048;
233 props->subnet_timeout = 0;
234 props->max_vl_num = out_mad->data[37] >> 4;
235 props->init_type_reply = 0;
236 props->state = IB_PORT_DOWN;
237 props->phys_state = state_to_phys_state(props->state);
238 props->active_mtu = IB_MTU_256;
239 spin_lock(&iboe->lock);
240 ndev = iboe->netdevs[port - 1];
241 if (!ndev)
242 goto out;
243
244 tmp = iboe_get_mtu(ndev->mtu);
245 props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
246
21d60609 247 props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ?
fa417f7b
EC		 248 IB_PORT_ACTIVE : IB_PORT_DOWN;
249 props->phys_state = state_to_phys_state(props->state);
250
251out:
252 spin_unlock(&iboe->lock);
253 return 0;
254}
255
256static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
257 struct ib_port_attr *props)
258{
259 struct ib_smp *in_mad = NULL;
260 struct ib_smp *out_mad = NULL;
261 int err = -ENOMEM;
262
263 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
264 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
265 if (!in_mad || !out_mad)
266 goto out;
267
268 memset(props, 0, sizeof *props);
269
270 init_query_mad(in_mad);
271 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
272 in_mad->attr_mod = cpu_to_be32(port);
273
274 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
275 if (err)
276 goto out;
277
278 err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
279 ib_link_query_port(ibdev, port, props, out_mad) :
280 eth_link_query_port(ibdev, port, props, out_mad);
281
225c7b1f
RD		 282out:
283 kfree(in_mad);
284 kfree(out_mad);
285
286 return err;
287}
288
fa417f7b
EC		 289static int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
290 union ib_gid *gid)
225c7b1f
RD		 291{
292 struct ib_smp *in_mad = NULL;
293 struct ib_smp *out_mad = NULL;
294 int err = -ENOMEM;
295
296 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
297 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
298 if (!in_mad || !out_mad)
299 goto out;
300
301 init_query_mad(in_mad);
302 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
303 in_mad->attr_mod = cpu_to_be32(port);
304
305 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
306 if (err)
307 goto out;
308
309 memcpy(gid->raw, out_mad->data + 8, 8);
310
311 init_query_mad(in_mad);
312 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
313 in_mad->attr_mod = cpu_to_be32(index / 8);
314
315 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
316 if (err)
317 goto out;
318
319 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
320
321out:
322 kfree(in_mad);
323 kfree(out_mad);
324 return err;
325}
326
fa417f7b
EC		 327static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index,
328 union ib_gid *gid)
329{
330 struct mlx4_ib_dev *dev = to_mdev(ibdev);
331
332 *gid = dev->iboe.gid_table[port - 1][index];
333
334 return 0;
335}
336
337static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
338 union ib_gid *gid)
339{
340 if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND)
341 return __mlx4_ib_query_gid(ibdev, port, index, gid);
342 else
343 return iboe_query_gid(ibdev, port, index, gid);
344}
345
225c7b1f
RD		 346static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
347 u16 *pkey)
348{
349 struct ib_smp *in_mad = NULL;
350 struct ib_smp *out_mad = NULL;
351 int err = -ENOMEM;
352
353 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
354 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
355 if (!in_mad || !out_mad)
356 goto out;
357
358 init_query_mad(in_mad);
359 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
360 in_mad->attr_mod = cpu_to_be32(index / 32);
361
362 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
363 if (err)
364 goto out;
365
366 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
367
368out:
369 kfree(in_mad);
370 kfree(out_mad);
371 return err;
372}
373
374static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
375 struct ib_device_modify *props)
376{
d0d68b86
JM		 377 struct mlx4_cmd_mailbox *mailbox;
378
225c7b1f
RD		 379 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
380 return -EOPNOTSUPP;
381
d0d68b86
JM		 382 if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
383 return 0;
384
385 spin_lock(&to_mdev(ibdev)->sm_lock);
386 memcpy(ibdev->node_desc, props->node_desc, 64);
387 spin_unlock(&to_mdev(ibdev)->sm_lock);
388
389 /*
390 * If possible, pass node desc to FW, so it can generate
391 * a 144 trap. If cmd fails, just ignore.
392 */
393 mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
394 if (IS_ERR(mailbox))
395 return 0;
396
397 memset(mailbox->buf, 0, 256);
398 memcpy(mailbox->buf, props->node_desc, 64);
399 mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
400 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A);
401
402 mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
225c7b1f
RD		 403
404 return 0;
405}
406
407static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
408 u32 cap_mask)
409{
410 struct mlx4_cmd_mailbox *mailbox;
411 int err;
fa417f7b 412 u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
225c7b1f
RD		 413
414 mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
415 if (IS_ERR(mailbox))
416 return PTR_ERR(mailbox);
417
418 memset(mailbox->buf, 0, 256);
5ae2a7a8
RD		 419
420 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
421 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6;
422 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
423 } else {
424 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols;
425 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
426 }
225c7b1f 427
fa417f7b 428 err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT,
225c7b1f
RD		 429 MLX4_CMD_TIME_CLASS_B);
430
431 mlx4_free_cmd_mailbox(dev->dev, mailbox);
432 return err;
433}
434
435static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
436 struct ib_port_modify *props)
437{
438 struct ib_port_attr attr;
439 u32 cap_mask;
440 int err;
441
442 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
443
444 err = mlx4_ib_query_port(ibdev, port, &attr);
445 if (err)
446 goto out;
447
448 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
449 ~props->clr_port_cap_mask;
450
451 err = mlx4_SET_PORT(to_mdev(ibdev), port,
452 !!(mask & IB_PORT_RESET_QKEY_CNTR),
453 cap_mask);
454
455out:
456 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
457 return err;
458}
459
460static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
461 struct ib_udata *udata)
462{
463 struct mlx4_ib_dev *dev = to_mdev(ibdev);
464 struct mlx4_ib_ucontext *context;
465 struct mlx4_ib_alloc_ucontext_resp resp;
466 int err;
467
3b4a8cd5
JM		 468 if (!dev->ib_active)
469 return ERR_PTR(-EAGAIN);
470
225c7b1f
RD		 471 resp.qp_tab_size = dev->dev->caps.num_qps;
472 resp.bf_reg_size = dev->dev->caps.bf_reg_size;
473 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
474
475 context = kmalloc(sizeof *context, GFP_KERNEL);
476 if (!context)
477 return ERR_PTR(-ENOMEM);
478
479 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
480 if (err) {
481 kfree(context);
482 return ERR_PTR(err);
483 }
484
485 INIT_LIST_HEAD(&context->db_page_list);
486 mutex_init(&context->db_page_mutex);
487
488 err = ib_copy_to_udata(udata, &resp, sizeof resp);
489 if (err) {
490 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
491 kfree(context);
492 return ERR_PTR(-EFAULT);
493 }
494
495 return &context->ibucontext;
496}
497
498static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
499{
500 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
501
502 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
503 kfree(context);
504
505 return 0;
506}
507
508static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
509{
510 struct mlx4_ib_dev *dev = to_mdev(context->device);
511
512 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
513 return -EINVAL;
514
515 if (vma->vm_pgoff == 0) {
516 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
517
518 if (io_remap_pfn_range(vma, vma->vm_start,
519 to_mucontext(context)->uar.pfn,
520 PAGE_SIZE, vma->vm_page_prot))
521 return -EAGAIN;
522 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
e1d60ec6 523 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
225c7b1f
RD		 524
525 if (io_remap_pfn_range(vma, vma->vm_start,
526 to_mucontext(context)->uar.pfn +
527 dev->dev->caps.num_uars,
528 PAGE_SIZE, vma->vm_page_prot))
529 return -EAGAIN;
530 } else
531 return -EINVAL;
532
533 return 0;
534}
535
536static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
537 struct ib_ucontext *context,
538 struct ib_udata *udata)
539{
540 struct mlx4_ib_pd *pd;
541 int err;
542
543 pd = kmalloc(sizeof *pd, GFP_KERNEL);
544 if (!pd)
545 return ERR_PTR(-ENOMEM);
546
547 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
548 if (err) {
549 kfree(pd);
550 return ERR_PTR(err);
551 }
552
553 if (context)
554 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
555 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
556 kfree(pd);
557 return ERR_PTR(-EFAULT);
558 }
559
560 return &pd->ibpd;
561}
562
563static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
564{
565 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
566 kfree(pd);
567
568 return 0;
569}
570
012a8ff5
SH		 571static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
572 struct ib_ucontext *context,
573 struct ib_udata *udata)
574{
575 struct mlx4_ib_xrcd *xrcd;
576 int err;
577
578 if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
579 return ERR_PTR(-ENOSYS);
580
581 xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
582 if (!xrcd)
583 return ERR_PTR(-ENOMEM);
584
585 err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
586 if (err)
587 goto err1;
588
589 xrcd->pd = ib_alloc_pd(ibdev);
590 if (IS_ERR(xrcd->pd)) {
591 err = PTR_ERR(xrcd->pd);
592 goto err2;
593 }
594
595 xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0);
596 if (IS_ERR(xrcd->cq)) {
597 err = PTR_ERR(xrcd->cq);
598 goto err3;
599 }
600
601 return &xrcd->ibxrcd;
602
603err3:
604 ib_dealloc_pd(xrcd->pd);
605err2:
606 mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
607err1:
608 kfree(xrcd);
609 return ERR_PTR(err);
610}
611
612static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
613{
614 ib_destroy_cq(to_mxrcd(xrcd)->cq);
615 ib_dealloc_pd(to_mxrcd(xrcd)->pd);
616 mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
617 kfree(xrcd);
618
619 return 0;
620}
621
fa417f7b
EC		 622static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
623{
624 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
625 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
626 struct mlx4_ib_gid_entry *ge;
627
628 ge = kzalloc(sizeof *ge, GFP_KERNEL);
629 if (!ge)
630 return -ENOMEM;
631
632 ge->gid = *gid;
633 if (mlx4_ib_add_mc(mdev, mqp, gid)) {
634 ge->port = mqp->port;
635 ge->added = 1;
636 }
637
638 mutex_lock(&mqp->mutex);
639 list_add_tail(&ge->list, &mqp->gid_list);
640 mutex_unlock(&mqp->mutex);
641
642 return 0;
643}
644
645int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
646 union ib_gid *gid)
647{
648 u8 mac[6];
649 struct net_device *ndev;
650 int ret = 0;
651
652 if (!mqp->port)
653 return 0;
654
655 spin_lock(&mdev->iboe.lock);
656 ndev = mdev->iboe.netdevs[mqp->port - 1];
657 if (ndev)
658 dev_hold(ndev);
659 spin_unlock(&mdev->iboe.lock);
660
661 if (ndev) {
662 rdma_get_mcast_mac((struct in6_addr *)gid, mac);
663 rtnl_lock();
664 dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac);
665 ret = 1;
666 rtnl_unlock();
667 dev_put(ndev);
668 }
669
670 return ret;
671}
672
225c7b1f
RD		 673static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
674{
fa417f7b
EC		 675 int err;
676 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
677 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
678
da995a8a
AS		 679 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw,
680 !!(mqp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
0345584e 681 MLX4_PROT_IB_IPV6);
fa417f7b
EC		 682 if (err)
683 return err;
684
685 err = add_gid_entry(ibqp, gid);
686 if (err)
687 goto err_add;
688
689 return 0;
690
691err_add:
0345584e 692 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, MLX4_PROT_IB_IPV6);
fa417f7b
EC		 693 return err;
694}
695
696static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
697{
698 struct mlx4_ib_gid_entry *ge;
699 struct mlx4_ib_gid_entry *tmp;
700 struct mlx4_ib_gid_entry *ret = NULL;
701
702 list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
703 if (!memcmp(raw, ge->gid.raw, 16)) {
704 ret = ge;
705 break;
706 }
707 }
708
709 return ret;
225c7b1f
RD		 710}
711
712static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
713{
fa417f7b
EC		 714 int err;
715 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
716 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
717 u8 mac[6];
718 struct net_device *ndev;
719 struct mlx4_ib_gid_entry *ge;
720
721 err = mlx4_multicast_detach(mdev->dev,
0345584e 722 &mqp->mqp, gid->raw, MLX4_PROT_IB_IPV6);
fa417f7b
EC		 723 if (err)
724 return err;
725
726 mutex_lock(&mqp->mutex);
727 ge = find_gid_entry(mqp, gid->raw);
728 if (ge) {
729 spin_lock(&mdev->iboe.lock);
730 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
731 if (ndev)
732 dev_hold(ndev);
733 spin_unlock(&mdev->iboe.lock);
734 rdma_get_mcast_mac((struct in6_addr *)gid, mac);
735 if (ndev) {
736 rtnl_lock();
737 dev_mc_del(mdev->iboe.netdevs[ge->port - 1], mac);
738 rtnl_unlock();
739 dev_put(ndev);
740 }
741 list_del(&ge->list);
742 kfree(ge);
743 } else
744 printk(KERN_WARNING "could not find mgid entry\n");
745
746 mutex_unlock(&mqp->mutex);
747
748 return 0;
225c7b1f
RD		 749}
750
751static int init_node_data(struct mlx4_ib_dev *dev)
752{
753 struct ib_smp *in_mad = NULL;
754 struct ib_smp *out_mad = NULL;
755 int err = -ENOMEM;
756
757 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
758 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
759 if (!in_mad || !out_mad)
760 goto out;
761
762 init_query_mad(in_mad);
763 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
764
765 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
766 if (err)
767 goto out;
768
769 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
770
771 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
772
773 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
774 if (err)
775 goto out;
776
777 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
778
779out:
780 kfree(in_mad);
781 kfree(out_mad);
782 return err;
783}
784
f4e91eb4
TJ		 785static ssize_t show_hca(struct device *device, struct device_attribute *attr,
786 char *buf)
cd9281d8 787{
f4e91eb4
TJ		 788 struct mlx4_ib_dev *dev =
789 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 790 return sprintf(buf, "MT%d\n", dev->dev->pdev->device);
791}
792
f4e91eb4
TJ		 793static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
794 char *buf)
cd9281d8 795{
f4e91eb4
TJ		 796 struct mlx4_ib_dev *dev =
797 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 798 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
799 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
800 (int) dev->dev->caps.fw_ver & 0xffff);
801}
802
f4e91eb4
TJ		 803static ssize_t show_rev(struct device *device, struct device_attribute *attr,
804 char *buf)
cd9281d8 805{
f4e91eb4
TJ		 806 struct mlx4_ib_dev *dev =
807 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 808 return sprintf(buf, "%x\n", dev->dev->rev_id);
809}
810
f4e91eb4
TJ		 811static ssize_t show_board(struct device *device, struct device_attribute *attr,
812 char *buf)
cd9281d8 813{
f4e91eb4
TJ		 814 struct mlx4_ib_dev *dev =
815 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
816 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
817 dev->dev->board_id);
cd9281d8
JM		 818}
819
f4e91eb4
TJ		 820static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
821static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
822static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
823static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
cd9281d8 824
f4e91eb4
TJ		 825static struct device_attribute *mlx4_class_attributes[] = {
826 &dev_attr_hw_rev,
827 &dev_attr_fw_ver,
828 &dev_attr_hca_type,
829 &dev_attr_board_id
cd9281d8
JM		 830};
831
4c3eb3ca 832static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev)
fa417f7b
EC		 833{
834 memcpy(eui, dev->dev_addr, 3);
835 memcpy(eui + 5, dev->dev_addr + 3, 3);
4c3eb3ca
EC		 836 if (vlan_id < 0x1000) {
837 eui[3] = vlan_id >> 8;
838 eui[4] = vlan_id & 0xff;
839 } else {
840 eui[3] = 0xff;
841 eui[4] = 0xfe;
842 }
fa417f7b
EC		 843 eui[0] ^= 2;
844}
845
846static void update_gids_task(struct work_struct *work)
847{
848 struct update_gid_work *gw = container_of(work, struct update_gid_work, work);
849 struct mlx4_cmd_mailbox *mailbox;
850 union ib_gid *gids;
851 int err;
852 struct mlx4_dev *dev = gw->dev->dev;
853 struct ib_event event;
854
855 mailbox = mlx4_alloc_cmd_mailbox(dev);
856 if (IS_ERR(mailbox)) {
857 printk(KERN_WARNING "update gid table failed %ld\n", PTR_ERR(mailbox));
858 return;
859 }
860
861 gids = mailbox->buf;
862 memcpy(gids, gw->gids, sizeof gw->gids);
863
864 err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port,
865 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B);
866 if (err)
867 printk(KERN_WARNING "set port command failed\n");
868 else {
869 memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids);
870 event.device = &gw->dev->ib_dev;
871 event.element.port_num = gw->port;
6451c712 872 event.event = IB_EVENT_GID_CHANGE;
fa417f7b
EC		 873 ib_dispatch_event(&event);
874 }
875
876 mlx4_free_cmd_mailbox(dev, mailbox);
877 kfree(gw);
878}
879
880static int update_ipv6_gids(struct mlx4_ib_dev *dev, int port, int clear)
881{
882 struct net_device *ndev = dev->iboe.netdevs[port - 1];
883 struct update_gid_work *work;
4c3eb3ca
EC		 884 struct net_device *tmp;
885 int i;
886 u8 *hits;
887 int ret;
888 union ib_gid gid;
889 int free;
890 int found;
891 int need_update = 0;
892 u16 vid;
fa417f7b
EC		 893
894 work = kzalloc(sizeof *work, GFP_ATOMIC);
895 if (!work)
896 return -ENOMEM;
897
4c3eb3ca
EC		 898 hits = kzalloc(128, GFP_ATOMIC);
899 if (!hits) {
900 ret = -ENOMEM;
901 goto out;
902 }
903
22f4fbd9
ED		 904 rcu_read_lock();
905 for_each_netdev_rcu(&init_net, tmp) {
4c3eb3ca
EC		 906 if (ndev && (tmp == ndev || rdma_vlan_dev_real_dev(tmp) == ndev)) {
907 gid.global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
908 vid = rdma_vlan_dev_vlan_id(tmp);
909 mlx4_addrconf_ifid_eui48(&gid.raw[8], vid, ndev);
910 found = 0;
911 free = -1;
912 for (i = 0; i < 128; ++i) {
913 if (free < 0 &&
914 !memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid))
915 free = i;
916 if (!memcmp(&dev->iboe.gid_table[port - 1][i], &gid, sizeof gid)) {
917 hits[i] = 1;
918 found = 1;
919 break;
920 }
921 }
922
923 if (!found) {
924 if (tmp == ndev &&
925 (memcmp(&dev->iboe.gid_table[port - 1][0],
926 &gid, sizeof gid) ||
927 !memcmp(&dev->iboe.gid_table[port - 1][0],
928 &zgid, sizeof gid))) {
929 dev->iboe.gid_table[port - 1][0] = gid;
930 ++need_update;
931 hits[0] = 1;
932 } else if (free >= 0) {
933 dev->iboe.gid_table[port - 1][free] = gid;
934 hits[free] = 1;
935 ++need_update;
936 }
937 }
938 }
fa417f7b 939 }
22f4fbd9 940 rcu_read_unlock();
4c3eb3ca
EC		 941
942 for (i = 0; i < 128; ++i)
943 if (!hits[i]) {
944 if (memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid))
945 ++need_update;
946 dev->iboe.gid_table[port - 1][i] = zgid;
947 }
fa417f7b 948
4c3eb3ca
EC		 949 if (need_update) {
950 memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof work->gids);
951 INIT_WORK(&work->work, update_gids_task);
952 work->port = port;
953 work->dev = dev;
954 queue_work(wq, &work->work);
955 } else
956 kfree(work);
fa417f7b 957
4c3eb3ca 958 kfree(hits);
fa417f7b 959 return 0;
4c3eb3ca
EC		 960
961out:
962 kfree(work);
963 return ret;
fa417f7b
EC		 964}
965
966static void handle_en_event(struct mlx4_ib_dev *dev, int port, unsigned long event)
967{
968 switch (event) {
969 case NETDEV_UP:
4c3eb3ca 970 case NETDEV_CHANGEADDR:
fa417f7b
EC		 971 update_ipv6_gids(dev, port, 0);
972 break;
973
974 case NETDEV_DOWN:
975 update_ipv6_gids(dev, port, 1);
976 dev->iboe.netdevs[port - 1] = NULL;
977 }
978}
979
980static void netdev_added(struct mlx4_ib_dev *dev, int port)
981{
982 update_ipv6_gids(dev, port, 0);
983}
984
985static void netdev_removed(struct mlx4_ib_dev *dev, int port)
986{
987 update_ipv6_gids(dev, port, 1);
988}
989
990static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event,
991 void *ptr)
992{
993 struct net_device *dev = ptr;
994 struct mlx4_ib_dev *ibdev;
995 struct net_device *oldnd;
996 struct mlx4_ib_iboe *iboe;
997 int port;
998
999 if (!net_eq(dev_net(dev), &init_net))
1000 return NOTIFY_DONE;
1001
1002 ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
1003 iboe = &ibdev->iboe;
1004
1005 spin_lock(&iboe->lock);
1006 mlx4_foreach_ib_transport_port(port, ibdev->dev) {
1007 oldnd = iboe->netdevs[port - 1];
1008 iboe->netdevs[port - 1] =
0345584e 1009 mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
fa417f7b
EC		 1010 if (oldnd != iboe->netdevs[port - 1]) {
1011 if (iboe->netdevs[port - 1])
1012 netdev_added(ibdev, port);
1013 else
1014 netdev_removed(ibdev, port);
1015 }
1016 }
1017
4c3eb3ca
EC		 1018 if (dev == iboe->netdevs[0] ||
1019 (iboe->netdevs[0] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[0]))
fa417f7b 1020 handle_en_event(ibdev, 1, event);
4c3eb3ca
EC		 1021 else if (dev == iboe->netdevs[1]
1022 || (iboe->netdevs[1] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[1]))
fa417f7b
EC		 1023 handle_en_event(ibdev, 2, event);
1024
1025 spin_unlock(&iboe->lock);
1026
1027 return NOTIFY_DONE;
1028}
1029
225c7b1f
RD		 1030static void *mlx4_ib_add(struct mlx4_dev *dev)
1031{
1032 struct mlx4_ib_dev *ibdev;
22e7ef9c 1033 int num_ports = 0;
cd9281d8 1034 int i;
fa417f7b
EC		 1035 int err;
1036 struct mlx4_ib_iboe *iboe;
225c7b1f 1037
f1aa78b2 1038 printk_once(KERN_INFO "%s", mlx4_ib_version);
68f3948d 1039
fa417f7b 1040 mlx4_foreach_ib_transport_port(i, dev)
22e7ef9c
RD		 1041 num_ports++;
1042
1043 /* No point in registering a device with no ports... */
1044 if (num_ports == 0)
1045 return NULL;
1046
225c7b1f
RD		 1047 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
1048 if (!ibdev) {
1049 dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
1050 return NULL;
1051 }
1052
fa417f7b
EC		 1053 iboe = &ibdev->iboe;
1054
225c7b1f
RD		 1055 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
1056 goto err_dealloc;
1057
1058 if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
1059 goto err_pd;
1060
4979d18f
RD		 1061 ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT,
1062 PAGE_SIZE);
225c7b1f
RD		 1063 if (!ibdev->uar_map)
1064 goto err_uar;
26c6bc7b 1065 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
225c7b1f 1066
225c7b1f
RD		 1067 ibdev->dev = dev;
1068
1069 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
1070 ibdev->ib_dev.owner = THIS_MODULE;
1071 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
95d04f07 1072 ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey;
22e7ef9c 1073 ibdev->num_ports = num_ports;
7ff93f8b 1074 ibdev->ib_dev.phys_port_cnt = ibdev->num_ports;
b8dd786f 1075 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
225c7b1f
RD		 1076 ibdev->ib_dev.dma_device = &dev->pdev->dev;
1077
1078 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
1079 ibdev->ib_dev.uverbs_cmd_mask =
1080 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1081 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1082 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1083 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1084 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1085 (1ull << IB_USER_VERBS_CMD_REG_MR) |
1086 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1087 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1088 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
bbf8eed1 1089 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
225c7b1f
RD		 1090 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1091 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1092 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
6a775e2b 1093 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
225c7b1f
RD		 1094 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1095 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
1096 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
1097 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
1098 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
65541cb7 1099 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
18abd5ea
SH		 1100 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) |
1101 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ);
225c7b1f
RD		 1102
1103 ibdev->ib_dev.query_device = mlx4_ib_query_device;
1104 ibdev->ib_dev.query_port = mlx4_ib_query_port;
fa417f7b 1105 ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer;
225c7b1f
RD		 1106 ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
1107 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
1108 ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
1109 ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
1110 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
1111 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
1112 ibdev->ib_dev.mmap = mlx4_ib_mmap;
1113 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
1114 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
1115 ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
1116 ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
1117 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
1118 ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
1119 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
65541cb7 1120 ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
225c7b1f
RD		 1121 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
1122 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
1123 ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
1124 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
6a775e2b 1125 ibdev->ib_dev.query_qp = mlx4_ib_query_qp;
225c7b1f
RD		 1126 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
1127 ibdev->ib_dev.post_send = mlx4_ib_post_send;
1128 ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
1129 ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
3fdcb97f 1130 ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq;
bbf8eed1 1131 ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq;
225c7b1f
RD		 1132 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
1133 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
1134 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
1135 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
1136 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
1137 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
95d04f07
RD		 1138 ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr;
1139 ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list;
1140 ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list;
225c7b1f
RD		 1141 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
1142 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
1143 ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
1144
8ad11fb6
JM		 1145 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc;
1146 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr;
1147 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
1148 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
1149
012a8ff5
SH		 1150 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
1151 ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
1152 ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
1153 ibdev->ib_dev.uverbs_cmd_mask |=
1154 (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
1155 (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
1156 }
1157
fa417f7b
EC		 1158 spin_lock_init(&iboe->lock);
1159
225c7b1f
RD		 1160 if (init_node_data(ibdev))
1161 goto err_map;
1162
cfcde11c
OG		 1163 for (i = 0; i < ibdev->num_ports; ++i) {
1164 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
1165 IB_LINK_LAYER_ETHERNET) {
1166 err = mlx4_counter_alloc(ibdev->dev, &ibdev->counters[i]);
1167 if (err)
1168 ibdev->counters[i] = -1;
1169 } else
1170 ibdev->counters[i] = -1;
1171 }
1172
225c7b1f
RD		 1173 spin_lock_init(&ibdev->sm_lock);
1174 mutex_init(&ibdev->cap_mask_mutex);
1175
9a6edb60 1176 if (ib_register_device(&ibdev->ib_dev, NULL))
cfcde11c 1177 goto err_counter;
225c7b1f
RD		 1178
1179 if (mlx4_ib_mad_init(ibdev))
1180 goto err_reg;
1181
fa417f7b
EC		 1182 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE && !iboe->nb.notifier_call) {
1183 iboe->nb.notifier_call = mlx4_ib_netdev_event;
1184 err = register_netdevice_notifier(&iboe->nb);
1185 if (err)
1186 goto err_reg;
1187 }
1188
cd9281d8 1189 for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) {
f4e91eb4
TJ		 1190 if (device_create_file(&ibdev->ib_dev.dev,
1191 mlx4_class_attributes[i]))
fa417f7b 1192 goto err_notif;
cd9281d8
JM		 1193 }
1194
3b4a8cd5
JM		 1195 ibdev->ib_active = true;
1196
225c7b1f
RD		 1197 return ibdev;
1198
fa417f7b
EC		 1199err_notif:
1200 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
1201 printk(KERN_WARNING "failure unregistering notifier\n");
1202 flush_workqueue(wq);
1203
225c7b1f
RD		 1204err_reg:
1205 ib_unregister_device(&ibdev->ib_dev);
1206
cfcde11c
OG		 1207err_counter:
1208 for (; i; --i)
1209 mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]);
1210
225c7b1f
RD		 1211err_map:
1212 iounmap(ibdev->uar_map);
1213
1214err_uar:
1215 mlx4_uar_free(dev, &ibdev->priv_uar);
1216
1217err_pd:
1218 mlx4_pd_free(dev, ibdev->priv_pdn);
1219
1220err_dealloc:
1221 ib_dealloc_device(&ibdev->ib_dev);
1222
1223 return NULL;
1224}
1225
1226static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
1227{
1228 struct mlx4_ib_dev *ibdev = ibdev_ptr;
1229 int p;
1230
a6a47771
YP		 1231 mlx4_ib_mad_cleanup(ibdev);
1232 ib_unregister_device(&ibdev->ib_dev);
fa417f7b
EC		 1233 if (ibdev->iboe.nb.notifier_call) {
1234 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
1235 printk(KERN_WARNING "failure unregistering notifier\n");
1236 ibdev->iboe.nb.notifier_call = NULL;
1237 }
1238 iounmap(ibdev->uar_map);
cfcde11c
OG		 1239 for (p = 0; p < ibdev->num_ports; ++p)
1240 mlx4_counter_free(ibdev->dev, ibdev->counters[p]);
fa417f7b 1241 mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
225c7b1f
RD		 1242 mlx4_CLOSE_PORT(dev, p);
1243
225c7b1f
RD		 1244 mlx4_uar_free(dev, &ibdev->priv_uar);
1245 mlx4_pd_free(dev, ibdev->priv_pdn);
1246 ib_dealloc_device(&ibdev->ib_dev);
1247}
1248
1249static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
37608eea 1250 enum mlx4_dev_event event, int port)
225c7b1f
RD		 1251{
1252 struct ib_event ibev;
7ff93f8b
YP		 1253 struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
1254
1255 if (port > ibdev->num_ports)
1256 return;
225c7b1f
RD		 1257
1258 switch (event) {
37608eea
RD		 1259 case MLX4_DEV_EVENT_PORT_UP:
1260 ibev.event = IB_EVENT_PORT_ACTIVE;
225c7b1f
RD		 1261 break;
1262
37608eea
RD		 1263 case MLX4_DEV_EVENT_PORT_DOWN:
1264 ibev.event = IB_EVENT_PORT_ERR;
1265 break;
1266
1267 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
3b4a8cd5 1268 ibdev->ib_active = false;
225c7b1f
RD		 1269 ibev.event = IB_EVENT_DEVICE_FATAL;
1270 break;
1271
1272 default:
1273 return;
1274 }
1275
1276 ibev.device = ibdev_ptr;
1277 ibev.element.port_num = port;
1278
1279 ib_dispatch_event(&ibev);
1280}
1281
1282static struct mlx4_interface mlx4_ib_interface = {
fa417f7b
EC		 1283 .add = mlx4_ib_add,
1284 .remove = mlx4_ib_remove,
1285 .event = mlx4_ib_event,
0345584e 1286 .protocol = MLX4_PROT_IB_IPV6
225c7b1f
RD		 1287};
1288
1289static int __init mlx4_ib_init(void)
1290{
fa417f7b
EC		 1291 int err;
1292
1293 wq = create_singlethread_workqueue("mlx4_ib");
1294 if (!wq)
1295 return -ENOMEM;
1296
1297 err = mlx4_register_interface(&mlx4_ib_interface);
1298 if (err) {
1299 destroy_workqueue(wq);
1300 return err;
1301 }
1302
1303 return 0;
225c7b1f
RD		 1304}
1305
1306static void __exit mlx4_ib_cleanup(void)
1307{
1308 mlx4_unregister_interface(&mlx4_ib_interface);
fa417f7b 1309 destroy_workqueue(wq);
225c7b1f
RD		 1310}
1311
1312module_init(mlx4_ib_init);
1313module_exit(mlx4_ib_cleanup);
Linux 6.x block layer and io_uring tree(s)