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1 | /* | |
2 | * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. | |
3 | * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. | |
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> | |
36 | #include <linux/slab.h> | |
37 | #include <linux/errno.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/inetdevice.h> | |
40 | #include <linux/rtnetlink.h> | |
41 | #include <linux/if_vlan.h> | |
42 | #include <net/ipv6.h> | |
43 | #include <net/addrconf.h> | |
44 | ||
45 | #include <rdma/ib_smi.h> | |
46 | #include <rdma/ib_user_verbs.h> | |
47 | #include <rdma/ib_addr.h> | |
48 | ||
49 | #include <linux/mlx4/driver.h> | |
50 | #include <linux/mlx4/cmd.h> | |
51 | #include <linux/mlx4/qp.h> | |
52 | ||
53 | #include "mlx4_ib.h" | |
54 | #include "user.h" | |
55 | ||
56 | #define DRV_NAME MLX4_IB_DRV_NAME | |
57 | #define DRV_VERSION "2.2-1" | |
58 | #define DRV_RELDATE "Feb 2014" | |
59 | ||
60 | #define MLX4_IB_FLOW_MAX_PRIO 0xFFF | |
61 | #define MLX4_IB_FLOW_QPN_MASK 0xFFFFFF | |
62 | #define MLX4_IB_CARD_REV_A0 0xA0 | |
63 | ||
64 | MODULE_AUTHOR("Roland Dreier"); | |
65 | MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); | |
66 | MODULE_LICENSE("Dual BSD/GPL"); | |
67 | MODULE_VERSION(DRV_VERSION); | |
68 | ||
69 | int mlx4_ib_sm_guid_assign = 1; | |
70 | module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444); | |
71 | MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 1)"); | |
72 | ||
73 | static const char mlx4_ib_version[] = | |
74 | DRV_NAME ": Mellanox ConnectX InfiniBand driver v" | |
75 | DRV_VERSION " (" DRV_RELDATE ")\n"; | |
76 | ||
77 | struct update_gid_work { | |
78 | struct work_struct work; | |
79 | union ib_gid gids[128]; | |
80 | struct mlx4_ib_dev *dev; | |
81 | int port; | |
82 | }; | |
83 | ||
84 | static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init); | |
85 | ||
86 | static struct workqueue_struct *wq; | |
87 | ||
88 | static void init_query_mad(struct ib_smp *mad) | |
89 | { | |
90 | mad->base_version = 1; | |
91 | mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
92 | mad->class_version = 1; | |
93 | mad->method = IB_MGMT_METHOD_GET; | |
94 | } | |
95 | ||
96 | static union ib_gid zgid; | |
97 | ||
98 | static int check_flow_steering_support(struct mlx4_dev *dev) | |
99 | { | |
100 | int eth_num_ports = 0; | |
101 | int ib_num_ports = 0; | |
102 | ||
103 | int dmfs = dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED; | |
104 | ||
105 | if (dmfs) { | |
106 | int i; | |
107 | mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) | |
108 | eth_num_ports++; | |
109 | mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) | |
110 | ib_num_ports++; | |
111 | dmfs &= (!ib_num_ports || | |
112 | (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB)) && | |
113 | (!eth_num_ports || | |
114 | (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN)); | |
115 | if (ib_num_ports && mlx4_is_mfunc(dev)) { | |
116 | pr_warn("Device managed flow steering is unavailable for IB port in multifunction env.\n"); | |
117 | dmfs = 0; | |
118 | } | |
119 | } | |
120 | return dmfs; | |
121 | } | |
122 | ||
123 | static int num_ib_ports(struct mlx4_dev *dev) | |
124 | { | |
125 | int ib_ports = 0; | |
126 | int i; | |
127 | ||
128 | mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) | |
129 | ib_ports++; | |
130 | ||
131 | return ib_ports; | |
132 | } | |
133 | ||
134 | static int mlx4_ib_query_device(struct ib_device *ibdev, | |
135 | struct ib_device_attr *props) | |
136 | { | |
137 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
138 | struct ib_smp *in_mad = NULL; | |
139 | struct ib_smp *out_mad = NULL; | |
140 | int err = -ENOMEM; | |
141 | int have_ib_ports; | |
142 | ||
143 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
144 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
145 | if (!in_mad || !out_mad) | |
146 | goto out; | |
147 | ||
148 | init_query_mad(in_mad); | |
149 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
150 | ||
151 | err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS, | |
152 | 1, NULL, NULL, in_mad, out_mad); | |
153 | if (err) | |
154 | goto out; | |
155 | ||
156 | memset(props, 0, sizeof *props); | |
157 | ||
158 | have_ib_ports = num_ib_ports(dev->dev); | |
159 | ||
160 | props->fw_ver = dev->dev->caps.fw_ver; | |
161 | props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | | |
162 | IB_DEVICE_PORT_ACTIVE_EVENT | | |
163 | IB_DEVICE_SYS_IMAGE_GUID | | |
164 | IB_DEVICE_RC_RNR_NAK_GEN | | |
165 | IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; | |
166 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR) | |
167 | props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; | |
168 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) | |
169 | props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; | |
170 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM && have_ib_ports) | |
171 | props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; | |
172 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) | |
173 | props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; | |
174 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) | |
175 | props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; | |
176 | if (dev->dev->caps.max_gso_sz && | |
177 | (dev->dev->rev_id != MLX4_IB_CARD_REV_A0) && | |
178 | (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH)) | |
179 | props->device_cap_flags |= IB_DEVICE_UD_TSO; | |
180 | if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) | |
181 | props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; | |
182 | if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) && | |
183 | (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) && | |
184 | (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR)) | |
185 | props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; | |
186 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) | |
187 | props->device_cap_flags |= IB_DEVICE_XRC; | |
188 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW) | |
189 | props->device_cap_flags |= IB_DEVICE_MEM_WINDOW; | |
190 | if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) { | |
191 | if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_WIN_TYPE_2B) | |
192 | props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B; | |
193 | else | |
194 | props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2A; | |
195 | if (dev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) | |
196 | props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING; | |
197 | } | |
198 | ||
199 | props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & | |
200 | 0xffffff; | |
201 | props->vendor_part_id = dev->dev->persist->pdev->device; | |
202 | props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); | |
203 | memcpy(&props->sys_image_guid, out_mad->data + 4, 8); | |
204 | ||
205 | props->max_mr_size = ~0ull; | |
206 | props->page_size_cap = dev->dev->caps.page_size_cap; | |
207 | props->max_qp = dev->dev->quotas.qp; | |
208 | props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE; | |
209 | props->max_sge = min(dev->dev->caps.max_sq_sg, | |
210 | dev->dev->caps.max_rq_sg); | |
211 | props->max_cq = dev->dev->quotas.cq; | |
212 | props->max_cqe = dev->dev->caps.max_cqes; | |
213 | props->max_mr = dev->dev->quotas.mpt; | |
214 | props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; | |
215 | props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; | |
216 | props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; | |
217 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; | |
218 | props->max_srq = dev->dev->quotas.srq; | |
219 | props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; | |
220 | props->max_srq_sge = dev->dev->caps.max_srq_sge; | |
221 | props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES; | |
222 | props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; | |
223 | props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? | |
224 | IB_ATOMIC_HCA : IB_ATOMIC_NONE; | |
225 | props->masked_atomic_cap = props->atomic_cap; | |
226 | props->max_pkeys = dev->dev->caps.pkey_table_len[1]; | |
227 | props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; | |
228 | props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; | |
229 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * | |
230 | props->max_mcast_grp; | |
231 | props->max_map_per_fmr = dev->dev->caps.max_fmr_maps; | |
232 | ||
233 | out: | |
234 | kfree(in_mad); | |
235 | kfree(out_mad); | |
236 | ||
237 | return err; | |
238 | } | |
239 | ||
240 | static enum rdma_link_layer | |
241 | mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num) | |
242 | { | |
243 | struct mlx4_dev *dev = to_mdev(device)->dev; | |
244 | ||
245 | return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ? | |
246 | IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET; | |
247 | } | |
248 | ||
249 | static int ib_link_query_port(struct ib_device *ibdev, u8 port, | |
250 | struct ib_port_attr *props, int netw_view) | |
251 | { | |
252 | struct ib_smp *in_mad = NULL; | |
253 | struct ib_smp *out_mad = NULL; | |
254 | int ext_active_speed; | |
255 | int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; | |
256 | int err = -ENOMEM; | |
257 | ||
258 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
259 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
260 | if (!in_mad || !out_mad) | |
261 | goto out; | |
262 | ||
263 | init_query_mad(in_mad); | |
264 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
265 | in_mad->attr_mod = cpu_to_be32(port); | |
266 | ||
267 | if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view) | |
268 | mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; | |
269 | ||
270 | err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, | |
271 | in_mad, out_mad); | |
272 | if (err) | |
273 | goto out; | |
274 | ||
275 | ||
276 | props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); | |
277 | props->lmc = out_mad->data[34] & 0x7; | |
278 | props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); | |
279 | props->sm_sl = out_mad->data[36] & 0xf; | |
280 | props->state = out_mad->data[32] & 0xf; | |
281 | props->phys_state = out_mad->data[33] >> 4; | |
282 | props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); | |
283 | if (netw_view) | |
284 | props->gid_tbl_len = out_mad->data[50]; | |
285 | else | |
286 | props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; | |
287 | props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; | |
288 | props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; | |
289 | props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); | |
290 | props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); | |
291 | props->active_width = out_mad->data[31] & 0xf; | |
292 | props->active_speed = out_mad->data[35] >> 4; | |
293 | props->max_mtu = out_mad->data[41] & 0xf; | |
294 | props->active_mtu = out_mad->data[36] >> 4; | |
295 | props->subnet_timeout = out_mad->data[51] & 0x1f; | |
296 | props->max_vl_num = out_mad->data[37] >> 4; | |
297 | props->init_type_reply = out_mad->data[41] >> 4; | |
298 | ||
299 | /* Check if extended speeds (EDR/FDR/...) are supported */ | |
300 | if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { | |
301 | ext_active_speed = out_mad->data[62] >> 4; | |
302 | ||
303 | switch (ext_active_speed) { | |
304 | case 1: | |
305 | props->active_speed = IB_SPEED_FDR; | |
306 | break; | |
307 | case 2: | |
308 | props->active_speed = IB_SPEED_EDR; | |
309 | break; | |
310 | } | |
311 | } | |
312 | ||
313 | /* If reported active speed is QDR, check if is FDR-10 */ | |
314 | if (props->active_speed == IB_SPEED_QDR) { | |
315 | init_query_mad(in_mad); | |
316 | in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO; | |
317 | in_mad->attr_mod = cpu_to_be32(port); | |
318 | ||
319 | err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, | |
320 | NULL, NULL, in_mad, out_mad); | |
321 | if (err) | |
322 | goto out; | |
323 | ||
324 | /* Checking LinkSpeedActive for FDR-10 */ | |
325 | if (out_mad->data[15] & 0x1) | |
326 | props->active_speed = IB_SPEED_FDR10; | |
327 | } | |
328 | ||
329 | /* Avoid wrong speed value returned by FW if the IB link is down. */ | |
330 | if (props->state == IB_PORT_DOWN) | |
331 | props->active_speed = IB_SPEED_SDR; | |
332 | ||
333 | out: | |
334 | kfree(in_mad); | |
335 | kfree(out_mad); | |
336 | return err; | |
337 | } | |
338 | ||
339 | static u8 state_to_phys_state(enum ib_port_state state) | |
340 | { | |
341 | return state == IB_PORT_ACTIVE ? 5 : 3; | |
342 | } | |
343 | ||
344 | static int eth_link_query_port(struct ib_device *ibdev, u8 port, | |
345 | struct ib_port_attr *props, int netw_view) | |
346 | { | |
347 | ||
348 | struct mlx4_ib_dev *mdev = to_mdev(ibdev); | |
349 | struct mlx4_ib_iboe *iboe = &mdev->iboe; | |
350 | struct net_device *ndev; | |
351 | enum ib_mtu tmp; | |
352 | struct mlx4_cmd_mailbox *mailbox; | |
353 | int err = 0; | |
354 | int is_bonded = mlx4_is_bonded(mdev->dev); | |
355 | ||
356 | mailbox = mlx4_alloc_cmd_mailbox(mdev->dev); | |
357 | if (IS_ERR(mailbox)) | |
358 | return PTR_ERR(mailbox); | |
359 | ||
360 | err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0, | |
361 | MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B, | |
362 | MLX4_CMD_WRAPPED); | |
363 | if (err) | |
364 | goto out; | |
365 | ||
366 | props->active_width = (((u8 *)mailbox->buf)[5] == 0x40) ? | |
367 | IB_WIDTH_4X : IB_WIDTH_1X; | |
368 | props->active_speed = IB_SPEED_QDR; | |
369 | props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_IP_BASED_GIDS; | |
370 | props->gid_tbl_len = mdev->dev->caps.gid_table_len[port]; | |
371 | props->max_msg_sz = mdev->dev->caps.max_msg_sz; | |
372 | props->pkey_tbl_len = 1; | |
373 | props->max_mtu = IB_MTU_4096; | |
374 | props->max_vl_num = 2; | |
375 | props->state = IB_PORT_DOWN; | |
376 | props->phys_state = state_to_phys_state(props->state); | |
377 | props->active_mtu = IB_MTU_256; | |
378 | if (is_bonded) | |
379 | rtnl_lock(); /* required to get upper dev */ | |
380 | spin_lock_bh(&iboe->lock); | |
381 | ndev = iboe->netdevs[port - 1]; | |
382 | if (ndev && is_bonded) | |
383 | ndev = netdev_master_upper_dev_get(ndev); | |
384 | if (!ndev) | |
385 | goto out_unlock; | |
386 | ||
387 | tmp = iboe_get_mtu(ndev->mtu); | |
388 | props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256; | |
389 | ||
390 | props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ? | |
391 | IB_PORT_ACTIVE : IB_PORT_DOWN; | |
392 | props->phys_state = state_to_phys_state(props->state); | |
393 | out_unlock: | |
394 | spin_unlock_bh(&iboe->lock); | |
395 | if (is_bonded) | |
396 | rtnl_unlock(); | |
397 | out: | |
398 | mlx4_free_cmd_mailbox(mdev->dev, mailbox); | |
399 | return err; | |
400 | } | |
401 | ||
402 | int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port, | |
403 | struct ib_port_attr *props, int netw_view) | |
404 | { | |
405 | int err; | |
406 | ||
407 | memset(props, 0, sizeof *props); | |
408 | ||
409 | err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ? | |
410 | ib_link_query_port(ibdev, port, props, netw_view) : | |
411 | eth_link_query_port(ibdev, port, props, netw_view); | |
412 | ||
413 | return err; | |
414 | } | |
415 | ||
416 | static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, | |
417 | struct ib_port_attr *props) | |
418 | { | |
419 | /* returns host view */ | |
420 | return __mlx4_ib_query_port(ibdev, port, props, 0); | |
421 | } | |
422 | ||
423 | int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, | |
424 | union ib_gid *gid, int netw_view) | |
425 | { | |
426 | struct ib_smp *in_mad = NULL; | |
427 | struct ib_smp *out_mad = NULL; | |
428 | int err = -ENOMEM; | |
429 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
430 | int clear = 0; | |
431 | int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; | |
432 | ||
433 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
434 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
435 | if (!in_mad || !out_mad) | |
436 | goto out; | |
437 | ||
438 | init_query_mad(in_mad); | |
439 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
440 | in_mad->attr_mod = cpu_to_be32(port); | |
441 | ||
442 | if (mlx4_is_mfunc(dev->dev) && netw_view) | |
443 | mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; | |
444 | ||
445 | err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad); | |
446 | if (err) | |
447 | goto out; | |
448 | ||
449 | memcpy(gid->raw, out_mad->data + 8, 8); | |
450 | ||
451 | if (mlx4_is_mfunc(dev->dev) && !netw_view) { | |
452 | if (index) { | |
453 | /* For any index > 0, return the null guid */ | |
454 | err = 0; | |
455 | clear = 1; | |
456 | goto out; | |
457 | } | |
458 | } | |
459 | ||
460 | init_query_mad(in_mad); | |
461 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; | |
462 | in_mad->attr_mod = cpu_to_be32(index / 8); | |
463 | ||
464 | err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, | |
465 | NULL, NULL, in_mad, out_mad); | |
466 | if (err) | |
467 | goto out; | |
468 | ||
469 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); | |
470 | ||
471 | out: | |
472 | if (clear) | |
473 | memset(gid->raw + 8, 0, 8); | |
474 | kfree(in_mad); | |
475 | kfree(out_mad); | |
476 | return err; | |
477 | } | |
478 | ||
479 | static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index, | |
480 | union ib_gid *gid) | |
481 | { | |
482 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
483 | ||
484 | *gid = dev->iboe.gid_table[port - 1][index]; | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
489 | static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, | |
490 | union ib_gid *gid) | |
491 | { | |
492 | if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND) | |
493 | return __mlx4_ib_query_gid(ibdev, port, index, gid, 0); | |
494 | else | |
495 | return iboe_query_gid(ibdev, port, index, gid); | |
496 | } | |
497 | ||
498 | int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, | |
499 | u16 *pkey, int netw_view) | |
500 | { | |
501 | struct ib_smp *in_mad = NULL; | |
502 | struct ib_smp *out_mad = NULL; | |
503 | int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; | |
504 | int err = -ENOMEM; | |
505 | ||
506 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
507 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
508 | if (!in_mad || !out_mad) | |
509 | goto out; | |
510 | ||
511 | init_query_mad(in_mad); | |
512 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; | |
513 | in_mad->attr_mod = cpu_to_be32(index / 32); | |
514 | ||
515 | if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view) | |
516 | mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; | |
517 | ||
518 | err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, | |
519 | in_mad, out_mad); | |
520 | if (err) | |
521 | goto out; | |
522 | ||
523 | *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); | |
524 | ||
525 | out: | |
526 | kfree(in_mad); | |
527 | kfree(out_mad); | |
528 | return err; | |
529 | } | |
530 | ||
531 | static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) | |
532 | { | |
533 | return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0); | |
534 | } | |
535 | ||
536 | static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, | |
537 | struct ib_device_modify *props) | |
538 | { | |
539 | struct mlx4_cmd_mailbox *mailbox; | |
540 | unsigned long flags; | |
541 | ||
542 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) | |
543 | return -EOPNOTSUPP; | |
544 | ||
545 | if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) | |
546 | return 0; | |
547 | ||
548 | if (mlx4_is_slave(to_mdev(ibdev)->dev)) | |
549 | return -EOPNOTSUPP; | |
550 | ||
551 | spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags); | |
552 | memcpy(ibdev->node_desc, props->node_desc, 64); | |
553 | spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags); | |
554 | ||
555 | /* | |
556 | * If possible, pass node desc to FW, so it can generate | |
557 | * a 144 trap. If cmd fails, just ignore. | |
558 | */ | |
559 | mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev); | |
560 | if (IS_ERR(mailbox)) | |
561 | return 0; | |
562 | ||
563 | memcpy(mailbox->buf, props->node_desc, 64); | |
564 | mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0, | |
565 | MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); | |
566 | ||
567 | mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox); | |
568 | ||
569 | return 0; | |
570 | } | |
571 | ||
572 | static int mlx4_ib_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, | |
573 | u32 cap_mask) | |
574 | { | |
575 | struct mlx4_cmd_mailbox *mailbox; | |
576 | int err; | |
577 | ||
578 | mailbox = mlx4_alloc_cmd_mailbox(dev->dev); | |
579 | if (IS_ERR(mailbox)) | |
580 | return PTR_ERR(mailbox); | |
581 | ||
582 | if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { | |
583 | *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; | |
584 | ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); | |
585 | } else { | |
586 | ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; | |
587 | ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); | |
588 | } | |
589 | ||
590 | err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT, | |
591 | MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); | |
592 | ||
593 | mlx4_free_cmd_mailbox(dev->dev, mailbox); | |
594 | return err; | |
595 | } | |
596 | ||
597 | static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, | |
598 | struct ib_port_modify *props) | |
599 | { | |
600 | struct mlx4_ib_dev *mdev = to_mdev(ibdev); | |
601 | u8 is_eth = mdev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH; | |
602 | struct ib_port_attr attr; | |
603 | u32 cap_mask; | |
604 | int err; | |
605 | ||
606 | /* return OK if this is RoCE. CM calls ib_modify_port() regardless | |
607 | * of whether port link layer is ETH or IB. For ETH ports, qkey | |
608 | * violations and port capabilities are not meaningful. | |
609 | */ | |
610 | if (is_eth) | |
611 | return 0; | |
612 | ||
613 | mutex_lock(&mdev->cap_mask_mutex); | |
614 | ||
615 | err = mlx4_ib_query_port(ibdev, port, &attr); | |
616 | if (err) | |
617 | goto out; | |
618 | ||
619 | cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & | |
620 | ~props->clr_port_cap_mask; | |
621 | ||
622 | err = mlx4_ib_SET_PORT(mdev, port, | |
623 | !!(mask & IB_PORT_RESET_QKEY_CNTR), | |
624 | cap_mask); | |
625 | ||
626 | out: | |
627 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); | |
628 | return err; | |
629 | } | |
630 | ||
631 | static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev, | |
632 | struct ib_udata *udata) | |
633 | { | |
634 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
635 | struct mlx4_ib_ucontext *context; | |
636 | struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3; | |
637 | struct mlx4_ib_alloc_ucontext_resp resp; | |
638 | int err; | |
639 | ||
640 | if (!dev->ib_active) | |
641 | return ERR_PTR(-EAGAIN); | |
642 | ||
643 | if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) { | |
644 | resp_v3.qp_tab_size = dev->dev->caps.num_qps; | |
645 | resp_v3.bf_reg_size = dev->dev->caps.bf_reg_size; | |
646 | resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; | |
647 | } else { | |
648 | resp.dev_caps = dev->dev->caps.userspace_caps; | |
649 | resp.qp_tab_size = dev->dev->caps.num_qps; | |
650 | resp.bf_reg_size = dev->dev->caps.bf_reg_size; | |
651 | resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; | |
652 | resp.cqe_size = dev->dev->caps.cqe_size; | |
653 | } | |
654 | ||
655 | context = kmalloc(sizeof *context, GFP_KERNEL); | |
656 | if (!context) | |
657 | return ERR_PTR(-ENOMEM); | |
658 | ||
659 | err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); | |
660 | if (err) { | |
661 | kfree(context); | |
662 | return ERR_PTR(err); | |
663 | } | |
664 | ||
665 | INIT_LIST_HEAD(&context->db_page_list); | |
666 | mutex_init(&context->db_page_mutex); | |
667 | ||
668 | if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) | |
669 | err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3)); | |
670 | else | |
671 | err = ib_copy_to_udata(udata, &resp, sizeof(resp)); | |
672 | ||
673 | if (err) { | |
674 | mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); | |
675 | kfree(context); | |
676 | return ERR_PTR(-EFAULT); | |
677 | } | |
678 | ||
679 | return &context->ibucontext; | |
680 | } | |
681 | ||
682 | static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) | |
683 | { | |
684 | struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); | |
685 | ||
686 | mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); | |
687 | kfree(context); | |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
692 | static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
693 | { | |
694 | struct mlx4_ib_dev *dev = to_mdev(context->device); | |
695 | ||
696 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
697 | return -EINVAL; | |
698 | ||
699 | if (vma->vm_pgoff == 0) { | |
700 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
701 | ||
702 | if (io_remap_pfn_range(vma, vma->vm_start, | |
703 | to_mucontext(context)->uar.pfn, | |
704 | PAGE_SIZE, vma->vm_page_prot)) | |
705 | return -EAGAIN; | |
706 | } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) { | |
707 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); | |
708 | ||
709 | if (io_remap_pfn_range(vma, vma->vm_start, | |
710 | to_mucontext(context)->uar.pfn + | |
711 | dev->dev->caps.num_uars, | |
712 | PAGE_SIZE, vma->vm_page_prot)) | |
713 | return -EAGAIN; | |
714 | } else | |
715 | return -EINVAL; | |
716 | ||
717 | return 0; | |
718 | } | |
719 | ||
720 | static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev, | |
721 | struct ib_ucontext *context, | |
722 | struct ib_udata *udata) | |
723 | { | |
724 | struct mlx4_ib_pd *pd; | |
725 | int err; | |
726 | ||
727 | pd = kmalloc(sizeof *pd, GFP_KERNEL); | |
728 | if (!pd) | |
729 | return ERR_PTR(-ENOMEM); | |
730 | ||
731 | err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); | |
732 | if (err) { | |
733 | kfree(pd); | |
734 | return ERR_PTR(err); | |
735 | } | |
736 | ||
737 | if (context) | |
738 | if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) { | |
739 | mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); | |
740 | kfree(pd); | |
741 | return ERR_PTR(-EFAULT); | |
742 | } | |
743 | ||
744 | return &pd->ibpd; | |
745 | } | |
746 | ||
747 | static int mlx4_ib_dealloc_pd(struct ib_pd *pd) | |
748 | { | |
749 | mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); | |
750 | kfree(pd); | |
751 | ||
752 | return 0; | |
753 | } | |
754 | ||
755 | static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev, | |
756 | struct ib_ucontext *context, | |
757 | struct ib_udata *udata) | |
758 | { | |
759 | struct mlx4_ib_xrcd *xrcd; | |
760 | int err; | |
761 | ||
762 | if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)) | |
763 | return ERR_PTR(-ENOSYS); | |
764 | ||
765 | xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL); | |
766 | if (!xrcd) | |
767 | return ERR_PTR(-ENOMEM); | |
768 | ||
769 | err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn); | |
770 | if (err) | |
771 | goto err1; | |
772 | ||
773 | xrcd->pd = ib_alloc_pd(ibdev); | |
774 | if (IS_ERR(xrcd->pd)) { | |
775 | err = PTR_ERR(xrcd->pd); | |
776 | goto err2; | |
777 | } | |
778 | ||
779 | xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0); | |
780 | if (IS_ERR(xrcd->cq)) { | |
781 | err = PTR_ERR(xrcd->cq); | |
782 | goto err3; | |
783 | } | |
784 | ||
785 | return &xrcd->ibxrcd; | |
786 | ||
787 | err3: | |
788 | ib_dealloc_pd(xrcd->pd); | |
789 | err2: | |
790 | mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn); | |
791 | err1: | |
792 | kfree(xrcd); | |
793 | return ERR_PTR(err); | |
794 | } | |
795 | ||
796 | static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd) | |
797 | { | |
798 | ib_destroy_cq(to_mxrcd(xrcd)->cq); | |
799 | ib_dealloc_pd(to_mxrcd(xrcd)->pd); | |
800 | mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn); | |
801 | kfree(xrcd); | |
802 | ||
803 | return 0; | |
804 | } | |
805 | ||
806 | static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid) | |
807 | { | |
808 | struct mlx4_ib_qp *mqp = to_mqp(ibqp); | |
809 | struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); | |
810 | struct mlx4_ib_gid_entry *ge; | |
811 | ||
812 | ge = kzalloc(sizeof *ge, GFP_KERNEL); | |
813 | if (!ge) | |
814 | return -ENOMEM; | |
815 | ||
816 | ge->gid = *gid; | |
817 | if (mlx4_ib_add_mc(mdev, mqp, gid)) { | |
818 | ge->port = mqp->port; | |
819 | ge->added = 1; | |
820 | } | |
821 | ||
822 | mutex_lock(&mqp->mutex); | |
823 | list_add_tail(&ge->list, &mqp->gid_list); | |
824 | mutex_unlock(&mqp->mutex); | |
825 | ||
826 | return 0; | |
827 | } | |
828 | ||
829 | int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, | |
830 | union ib_gid *gid) | |
831 | { | |
832 | struct net_device *ndev; | |
833 | int ret = 0; | |
834 | ||
835 | if (!mqp->port) | |
836 | return 0; | |
837 | ||
838 | spin_lock_bh(&mdev->iboe.lock); | |
839 | ndev = mdev->iboe.netdevs[mqp->port - 1]; | |
840 | if (ndev) | |
841 | dev_hold(ndev); | |
842 | spin_unlock_bh(&mdev->iboe.lock); | |
843 | ||
844 | if (ndev) { | |
845 | ret = 1; | |
846 | dev_put(ndev); | |
847 | } | |
848 | ||
849 | return ret; | |
850 | } | |
851 | ||
852 | struct mlx4_ib_steering { | |
853 | struct list_head list; | |
854 | struct mlx4_flow_reg_id reg_id; | |
855 | union ib_gid gid; | |
856 | }; | |
857 | ||
858 | static int parse_flow_attr(struct mlx4_dev *dev, | |
859 | u32 qp_num, | |
860 | union ib_flow_spec *ib_spec, | |
861 | struct _rule_hw *mlx4_spec) | |
862 | { | |
863 | enum mlx4_net_trans_rule_id type; | |
864 | ||
865 | switch (ib_spec->type) { | |
866 | case IB_FLOW_SPEC_ETH: | |
867 | type = MLX4_NET_TRANS_RULE_ID_ETH; | |
868 | memcpy(mlx4_spec->eth.dst_mac, ib_spec->eth.val.dst_mac, | |
869 | ETH_ALEN); | |
870 | memcpy(mlx4_spec->eth.dst_mac_msk, ib_spec->eth.mask.dst_mac, | |
871 | ETH_ALEN); | |
872 | mlx4_spec->eth.vlan_tag = ib_spec->eth.val.vlan_tag; | |
873 | mlx4_spec->eth.vlan_tag_msk = ib_spec->eth.mask.vlan_tag; | |
874 | break; | |
875 | case IB_FLOW_SPEC_IB: | |
876 | type = MLX4_NET_TRANS_RULE_ID_IB; | |
877 | mlx4_spec->ib.l3_qpn = | |
878 | cpu_to_be32(qp_num); | |
879 | mlx4_spec->ib.qpn_mask = | |
880 | cpu_to_be32(MLX4_IB_FLOW_QPN_MASK); | |
881 | break; | |
882 | ||
883 | ||
884 | case IB_FLOW_SPEC_IPV4: | |
885 | type = MLX4_NET_TRANS_RULE_ID_IPV4; | |
886 | mlx4_spec->ipv4.src_ip = ib_spec->ipv4.val.src_ip; | |
887 | mlx4_spec->ipv4.src_ip_msk = ib_spec->ipv4.mask.src_ip; | |
888 | mlx4_spec->ipv4.dst_ip = ib_spec->ipv4.val.dst_ip; | |
889 | mlx4_spec->ipv4.dst_ip_msk = ib_spec->ipv4.mask.dst_ip; | |
890 | break; | |
891 | ||
892 | case IB_FLOW_SPEC_TCP: | |
893 | case IB_FLOW_SPEC_UDP: | |
894 | type = ib_spec->type == IB_FLOW_SPEC_TCP ? | |
895 | MLX4_NET_TRANS_RULE_ID_TCP : | |
896 | MLX4_NET_TRANS_RULE_ID_UDP; | |
897 | mlx4_spec->tcp_udp.dst_port = ib_spec->tcp_udp.val.dst_port; | |
898 | mlx4_spec->tcp_udp.dst_port_msk = ib_spec->tcp_udp.mask.dst_port; | |
899 | mlx4_spec->tcp_udp.src_port = ib_spec->tcp_udp.val.src_port; | |
900 | mlx4_spec->tcp_udp.src_port_msk = ib_spec->tcp_udp.mask.src_port; | |
901 | break; | |
902 | ||
903 | default: | |
904 | return -EINVAL; | |
905 | } | |
906 | if (mlx4_map_sw_to_hw_steering_id(dev, type) < 0 || | |
907 | mlx4_hw_rule_sz(dev, type) < 0) | |
908 | return -EINVAL; | |
909 | mlx4_spec->id = cpu_to_be16(mlx4_map_sw_to_hw_steering_id(dev, type)); | |
910 | mlx4_spec->size = mlx4_hw_rule_sz(dev, type) >> 2; | |
911 | return mlx4_hw_rule_sz(dev, type); | |
912 | } | |
913 | ||
914 | struct default_rules { | |
915 | __u32 mandatory_fields[IB_FLOW_SPEC_SUPPORT_LAYERS]; | |
916 | __u32 mandatory_not_fields[IB_FLOW_SPEC_SUPPORT_LAYERS]; | |
917 | __u32 rules_create_list[IB_FLOW_SPEC_SUPPORT_LAYERS]; | |
918 | __u8 link_layer; | |
919 | }; | |
920 | static const struct default_rules default_table[] = { | |
921 | { | |
922 | .mandatory_fields = {IB_FLOW_SPEC_IPV4}, | |
923 | .mandatory_not_fields = {IB_FLOW_SPEC_ETH}, | |
924 | .rules_create_list = {IB_FLOW_SPEC_IB}, | |
925 | .link_layer = IB_LINK_LAYER_INFINIBAND | |
926 | } | |
927 | }; | |
928 | ||
929 | static int __mlx4_ib_default_rules_match(struct ib_qp *qp, | |
930 | struct ib_flow_attr *flow_attr) | |
931 | { | |
932 | int i, j, k; | |
933 | void *ib_flow; | |
934 | const struct default_rules *pdefault_rules = default_table; | |
935 | u8 link_layer = rdma_port_get_link_layer(qp->device, flow_attr->port); | |
936 | ||
937 | for (i = 0; i < ARRAY_SIZE(default_table); i++, pdefault_rules++) { | |
938 | __u32 field_types[IB_FLOW_SPEC_SUPPORT_LAYERS]; | |
939 | memset(&field_types, 0, sizeof(field_types)); | |
940 | ||
941 | if (link_layer != pdefault_rules->link_layer) | |
942 | continue; | |
943 | ||
944 | ib_flow = flow_attr + 1; | |
945 | /* we assume the specs are sorted */ | |
946 | for (j = 0, k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS && | |
947 | j < flow_attr->num_of_specs; k++) { | |
948 | union ib_flow_spec *current_flow = | |
949 | (union ib_flow_spec *)ib_flow; | |
950 | ||
951 | /* same layer but different type */ | |
952 | if (((current_flow->type & IB_FLOW_SPEC_LAYER_MASK) == | |
953 | (pdefault_rules->mandatory_fields[k] & | |
954 | IB_FLOW_SPEC_LAYER_MASK)) && | |
955 | (current_flow->type != | |
956 | pdefault_rules->mandatory_fields[k])) | |
957 | goto out; | |
958 | ||
959 | /* same layer, try match next one */ | |
960 | if (current_flow->type == | |
961 | pdefault_rules->mandatory_fields[k]) { | |
962 | j++; | |
963 | ib_flow += | |
964 | ((union ib_flow_spec *)ib_flow)->size; | |
965 | } | |
966 | } | |
967 | ||
968 | ib_flow = flow_attr + 1; | |
969 | for (j = 0; j < flow_attr->num_of_specs; | |
970 | j++, ib_flow += ((union ib_flow_spec *)ib_flow)->size) | |
971 | for (k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS; k++) | |
972 | /* same layer and same type */ | |
973 | if (((union ib_flow_spec *)ib_flow)->type == | |
974 | pdefault_rules->mandatory_not_fields[k]) | |
975 | goto out; | |
976 | ||
977 | return i; | |
978 | } | |
979 | out: | |
980 | return -1; | |
981 | } | |
982 | ||
983 | static int __mlx4_ib_create_default_rules( | |
984 | struct mlx4_ib_dev *mdev, | |
985 | struct ib_qp *qp, | |
986 | const struct default_rules *pdefault_rules, | |
987 | struct _rule_hw *mlx4_spec) { | |
988 | int size = 0; | |
989 | int i; | |
990 | ||
991 | for (i = 0; i < ARRAY_SIZE(pdefault_rules->rules_create_list); i++) { | |
992 | int ret; | |
993 | union ib_flow_spec ib_spec; | |
994 | switch (pdefault_rules->rules_create_list[i]) { | |
995 | case 0: | |
996 | /* no rule */ | |
997 | continue; | |
998 | case IB_FLOW_SPEC_IB: | |
999 | ib_spec.type = IB_FLOW_SPEC_IB; | |
1000 | ib_spec.size = sizeof(struct ib_flow_spec_ib); | |
1001 | ||
1002 | break; | |
1003 | default: | |
1004 | /* invalid rule */ | |
1005 | return -EINVAL; | |
1006 | } | |
1007 | /* We must put empty rule, qpn is being ignored */ | |
1008 | ret = parse_flow_attr(mdev->dev, 0, &ib_spec, | |
1009 | mlx4_spec); | |
1010 | if (ret < 0) { | |
1011 | pr_info("invalid parsing\n"); | |
1012 | return -EINVAL; | |
1013 | } | |
1014 | ||
1015 | mlx4_spec = (void *)mlx4_spec + ret; | |
1016 | size += ret; | |
1017 | } | |
1018 | return size; | |
1019 | } | |
1020 | ||
1021 | static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr, | |
1022 | int domain, | |
1023 | enum mlx4_net_trans_promisc_mode flow_type, | |
1024 | u64 *reg_id) | |
1025 | { | |
1026 | int ret, i; | |
1027 | int size = 0; | |
1028 | void *ib_flow; | |
1029 | struct mlx4_ib_dev *mdev = to_mdev(qp->device); | |
1030 | struct mlx4_cmd_mailbox *mailbox; | |
1031 | struct mlx4_net_trans_rule_hw_ctrl *ctrl; | |
1032 | int default_flow; | |
1033 | ||
1034 | static const u16 __mlx4_domain[] = { | |
1035 | [IB_FLOW_DOMAIN_USER] = MLX4_DOMAIN_UVERBS, | |
1036 | [IB_FLOW_DOMAIN_ETHTOOL] = MLX4_DOMAIN_ETHTOOL, | |
1037 | [IB_FLOW_DOMAIN_RFS] = MLX4_DOMAIN_RFS, | |
1038 | [IB_FLOW_DOMAIN_NIC] = MLX4_DOMAIN_NIC, | |
1039 | }; | |
1040 | ||
1041 | if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) { | |
1042 | pr_err("Invalid priority value %d\n", flow_attr->priority); | |
1043 | return -EINVAL; | |
1044 | } | |
1045 | ||
1046 | if (domain >= IB_FLOW_DOMAIN_NUM) { | |
1047 | pr_err("Invalid domain value %d\n", domain); | |
1048 | return -EINVAL; | |
1049 | } | |
1050 | ||
1051 | if (mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type) < 0) | |
1052 | return -EINVAL; | |
1053 | ||
1054 | mailbox = mlx4_alloc_cmd_mailbox(mdev->dev); | |
1055 | if (IS_ERR(mailbox)) | |
1056 | return PTR_ERR(mailbox); | |
1057 | ctrl = mailbox->buf; | |
1058 | ||
1059 | ctrl->prio = cpu_to_be16(__mlx4_domain[domain] | | |
1060 | flow_attr->priority); | |
1061 | ctrl->type = mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type); | |
1062 | ctrl->port = flow_attr->port; | |
1063 | ctrl->qpn = cpu_to_be32(qp->qp_num); | |
1064 | ||
1065 | ib_flow = flow_attr + 1; | |
1066 | size += sizeof(struct mlx4_net_trans_rule_hw_ctrl); | |
1067 | /* Add default flows */ | |
1068 | default_flow = __mlx4_ib_default_rules_match(qp, flow_attr); | |
1069 | if (default_flow >= 0) { | |
1070 | ret = __mlx4_ib_create_default_rules( | |
1071 | mdev, qp, default_table + default_flow, | |
1072 | mailbox->buf + size); | |
1073 | if (ret < 0) { | |
1074 | mlx4_free_cmd_mailbox(mdev->dev, mailbox); | |
1075 | return -EINVAL; | |
1076 | } | |
1077 | size += ret; | |
1078 | } | |
1079 | for (i = 0; i < flow_attr->num_of_specs; i++) { | |
1080 | ret = parse_flow_attr(mdev->dev, qp->qp_num, ib_flow, | |
1081 | mailbox->buf + size); | |
1082 | if (ret < 0) { | |
1083 | mlx4_free_cmd_mailbox(mdev->dev, mailbox); | |
1084 | return -EINVAL; | |
1085 | } | |
1086 | ib_flow += ((union ib_flow_spec *) ib_flow)->size; | |
1087 | size += ret; | |
1088 | } | |
1089 | ||
1090 | ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0, | |
1091 | MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A, | |
1092 | MLX4_CMD_NATIVE); | |
1093 | if (ret == -ENOMEM) | |
1094 | pr_err("mcg table is full. Fail to register network rule.\n"); | |
1095 | else if (ret == -ENXIO) | |
1096 | pr_err("Device managed flow steering is disabled. Fail to register network rule.\n"); | |
1097 | else if (ret) | |
1098 | pr_err("Invalid argumant. Fail to register network rule.\n"); | |
1099 | ||
1100 | mlx4_free_cmd_mailbox(mdev->dev, mailbox); | |
1101 | return ret; | |
1102 | } | |
1103 | ||
1104 | static int __mlx4_ib_destroy_flow(struct mlx4_dev *dev, u64 reg_id) | |
1105 | { | |
1106 | int err; | |
1107 | err = mlx4_cmd(dev, reg_id, 0, 0, | |
1108 | MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, | |
1109 | MLX4_CMD_NATIVE); | |
1110 | if (err) | |
1111 | pr_err("Fail to detach network rule. registration id = 0x%llx\n", | |
1112 | reg_id); | |
1113 | return err; | |
1114 | } | |
1115 | ||
1116 | static int mlx4_ib_tunnel_steer_add(struct ib_qp *qp, struct ib_flow_attr *flow_attr, | |
1117 | u64 *reg_id) | |
1118 | { | |
1119 | void *ib_flow; | |
1120 | union ib_flow_spec *ib_spec; | |
1121 | struct mlx4_dev *dev = to_mdev(qp->device)->dev; | |
1122 | int err = 0; | |
1123 | ||
1124 | if (dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN || | |
1125 | dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) | |
1126 | return 0; /* do nothing */ | |
1127 | ||
1128 | ib_flow = flow_attr + 1; | |
1129 | ib_spec = (union ib_flow_spec *)ib_flow; | |
1130 | ||
1131 | if (ib_spec->type != IB_FLOW_SPEC_ETH || flow_attr->num_of_specs != 1) | |
1132 | return 0; /* do nothing */ | |
1133 | ||
1134 | err = mlx4_tunnel_steer_add(to_mdev(qp->device)->dev, ib_spec->eth.val.dst_mac, | |
1135 | flow_attr->port, qp->qp_num, | |
1136 | MLX4_DOMAIN_UVERBS | (flow_attr->priority & 0xff), | |
1137 | reg_id); | |
1138 | return err; | |
1139 | } | |
1140 | ||
1141 | static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, | |
1142 | struct ib_flow_attr *flow_attr, | |
1143 | int domain) | |
1144 | { | |
1145 | int err = 0, i = 0, j = 0; | |
1146 | struct mlx4_ib_flow *mflow; | |
1147 | enum mlx4_net_trans_promisc_mode type[2]; | |
1148 | struct mlx4_dev *dev = (to_mdev(qp->device))->dev; | |
1149 | int is_bonded = mlx4_is_bonded(dev); | |
1150 | ||
1151 | memset(type, 0, sizeof(type)); | |
1152 | ||
1153 | mflow = kzalloc(sizeof(*mflow), GFP_KERNEL); | |
1154 | if (!mflow) { | |
1155 | err = -ENOMEM; | |
1156 | goto err_free; | |
1157 | } | |
1158 | ||
1159 | switch (flow_attr->type) { | |
1160 | case IB_FLOW_ATTR_NORMAL: | |
1161 | type[0] = MLX4_FS_REGULAR; | |
1162 | break; | |
1163 | ||
1164 | case IB_FLOW_ATTR_ALL_DEFAULT: | |
1165 | type[0] = MLX4_FS_ALL_DEFAULT; | |
1166 | break; | |
1167 | ||
1168 | case IB_FLOW_ATTR_MC_DEFAULT: | |
1169 | type[0] = MLX4_FS_MC_DEFAULT; | |
1170 | break; | |
1171 | ||
1172 | case IB_FLOW_ATTR_SNIFFER: | |
1173 | type[0] = MLX4_FS_UC_SNIFFER; | |
1174 | type[1] = MLX4_FS_MC_SNIFFER; | |
1175 | break; | |
1176 | ||
1177 | default: | |
1178 | err = -EINVAL; | |
1179 | goto err_free; | |
1180 | } | |
1181 | ||
1182 | while (i < ARRAY_SIZE(type) && type[i]) { | |
1183 | err = __mlx4_ib_create_flow(qp, flow_attr, domain, type[i], | |
1184 | &mflow->reg_id[i].id); | |
1185 | if (err) | |
1186 | goto err_create_flow; | |
1187 | i++; | |
1188 | if (is_bonded) { | |
1189 | /* Application always sees one port so the mirror rule | |
1190 | * must be on port #2 | |
1191 | */ | |
1192 | flow_attr->port = 2; | |
1193 | err = __mlx4_ib_create_flow(qp, flow_attr, | |
1194 | domain, type[j], | |
1195 | &mflow->reg_id[j].mirror); | |
1196 | flow_attr->port = 1; | |
1197 | if (err) | |
1198 | goto err_create_flow; | |
1199 | j++; | |
1200 | } | |
1201 | ||
1202 | } | |
1203 | ||
1204 | if (i < ARRAY_SIZE(type) && flow_attr->type == IB_FLOW_ATTR_NORMAL) { | |
1205 | err = mlx4_ib_tunnel_steer_add(qp, flow_attr, | |
1206 | &mflow->reg_id[i].id); | |
1207 | if (err) | |
1208 | goto err_create_flow; | |
1209 | i++; | |
1210 | if (is_bonded) { | |
1211 | flow_attr->port = 2; | |
1212 | err = mlx4_ib_tunnel_steer_add(qp, flow_attr, | |
1213 | &mflow->reg_id[j].mirror); | |
1214 | flow_attr->port = 1; | |
1215 | if (err) | |
1216 | goto err_create_flow; | |
1217 | j++; | |
1218 | } | |
1219 | /* function to create mirror rule */ | |
1220 | } | |
1221 | ||
1222 | return &mflow->ibflow; | |
1223 | ||
1224 | err_create_flow: | |
1225 | while (i) { | |
1226 | (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev, | |
1227 | mflow->reg_id[i].id); | |
1228 | i--; | |
1229 | } | |
1230 | ||
1231 | while (j) { | |
1232 | (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev, | |
1233 | mflow->reg_id[j].mirror); | |
1234 | j--; | |
1235 | } | |
1236 | err_free: | |
1237 | kfree(mflow); | |
1238 | return ERR_PTR(err); | |
1239 | } | |
1240 | ||
1241 | static int mlx4_ib_destroy_flow(struct ib_flow *flow_id) | |
1242 | { | |
1243 | int err, ret = 0; | |
1244 | int i = 0; | |
1245 | struct mlx4_ib_dev *mdev = to_mdev(flow_id->qp->device); | |
1246 | struct mlx4_ib_flow *mflow = to_mflow(flow_id); | |
1247 | ||
1248 | while (i < ARRAY_SIZE(mflow->reg_id) && mflow->reg_id[i].id) { | |
1249 | err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i].id); | |
1250 | if (err) | |
1251 | ret = err; | |
1252 | if (mflow->reg_id[i].mirror) { | |
1253 | err = __mlx4_ib_destroy_flow(mdev->dev, | |
1254 | mflow->reg_id[i].mirror); | |
1255 | if (err) | |
1256 | ret = err; | |
1257 | } | |
1258 | i++; | |
1259 | } | |
1260 | ||
1261 | kfree(mflow); | |
1262 | return ret; | |
1263 | } | |
1264 | ||
1265 | static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
1266 | { | |
1267 | int err; | |
1268 | struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); | |
1269 | struct mlx4_dev *dev = mdev->dev; | |
1270 | struct mlx4_ib_qp *mqp = to_mqp(ibqp); | |
1271 | struct mlx4_ib_steering *ib_steering = NULL; | |
1272 | enum mlx4_protocol prot = MLX4_PROT_IB_IPV6; | |
1273 | struct mlx4_flow_reg_id reg_id; | |
1274 | ||
1275 | if (mdev->dev->caps.steering_mode == | |
1276 | MLX4_STEERING_MODE_DEVICE_MANAGED) { | |
1277 | ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL); | |
1278 | if (!ib_steering) | |
1279 | return -ENOMEM; | |
1280 | } | |
1281 | ||
1282 | err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port, | |
1283 | !!(mqp->flags & | |
1284 | MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), | |
1285 | prot, ®_id.id); | |
1286 | if (err) { | |
1287 | pr_err("multicast attach op failed, err %d\n", err); | |
1288 | goto err_malloc; | |
1289 | } | |
1290 | ||
1291 | reg_id.mirror = 0; | |
1292 | if (mlx4_is_bonded(dev)) { | |
1293 | err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, | |
1294 | (mqp->port == 1) ? 2 : 1, | |
1295 | !!(mqp->flags & | |
1296 | MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), | |
1297 | prot, ®_id.mirror); | |
1298 | if (err) | |
1299 | goto err_add; | |
1300 | } | |
1301 | ||
1302 | err = add_gid_entry(ibqp, gid); | |
1303 | if (err) | |
1304 | goto err_add; | |
1305 | ||
1306 | if (ib_steering) { | |
1307 | memcpy(ib_steering->gid.raw, gid->raw, 16); | |
1308 | ib_steering->reg_id = reg_id; | |
1309 | mutex_lock(&mqp->mutex); | |
1310 | list_add(&ib_steering->list, &mqp->steering_rules); | |
1311 | mutex_unlock(&mqp->mutex); | |
1312 | } | |
1313 | return 0; | |
1314 | ||
1315 | err_add: | |
1316 | mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, | |
1317 | prot, reg_id.id); | |
1318 | if (reg_id.mirror) | |
1319 | mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, | |
1320 | prot, reg_id.mirror); | |
1321 | err_malloc: | |
1322 | kfree(ib_steering); | |
1323 | ||
1324 | return err; | |
1325 | } | |
1326 | ||
1327 | static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw) | |
1328 | { | |
1329 | struct mlx4_ib_gid_entry *ge; | |
1330 | struct mlx4_ib_gid_entry *tmp; | |
1331 | struct mlx4_ib_gid_entry *ret = NULL; | |
1332 | ||
1333 | list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) { | |
1334 | if (!memcmp(raw, ge->gid.raw, 16)) { | |
1335 | ret = ge; | |
1336 | break; | |
1337 | } | |
1338 | } | |
1339 | ||
1340 | return ret; | |
1341 | } | |
1342 | ||
1343 | static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
1344 | { | |
1345 | int err; | |
1346 | struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); | |
1347 | struct mlx4_dev *dev = mdev->dev; | |
1348 | struct mlx4_ib_qp *mqp = to_mqp(ibqp); | |
1349 | struct net_device *ndev; | |
1350 | struct mlx4_ib_gid_entry *ge; | |
1351 | struct mlx4_flow_reg_id reg_id = {0, 0}; | |
1352 | enum mlx4_protocol prot = MLX4_PROT_IB_IPV6; | |
1353 | ||
1354 | if (mdev->dev->caps.steering_mode == | |
1355 | MLX4_STEERING_MODE_DEVICE_MANAGED) { | |
1356 | struct mlx4_ib_steering *ib_steering; | |
1357 | ||
1358 | mutex_lock(&mqp->mutex); | |
1359 | list_for_each_entry(ib_steering, &mqp->steering_rules, list) { | |
1360 | if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) { | |
1361 | list_del(&ib_steering->list); | |
1362 | break; | |
1363 | } | |
1364 | } | |
1365 | mutex_unlock(&mqp->mutex); | |
1366 | if (&ib_steering->list == &mqp->steering_rules) { | |
1367 | pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n"); | |
1368 | return -EINVAL; | |
1369 | } | |
1370 | reg_id = ib_steering->reg_id; | |
1371 | kfree(ib_steering); | |
1372 | } | |
1373 | ||
1374 | err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, | |
1375 | prot, reg_id.id); | |
1376 | if (err) | |
1377 | return err; | |
1378 | ||
1379 | if (mlx4_is_bonded(dev)) { | |
1380 | err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, | |
1381 | prot, reg_id.mirror); | |
1382 | if (err) | |
1383 | return err; | |
1384 | } | |
1385 | ||
1386 | mutex_lock(&mqp->mutex); | |
1387 | ge = find_gid_entry(mqp, gid->raw); | |
1388 | if (ge) { | |
1389 | spin_lock_bh(&mdev->iboe.lock); | |
1390 | ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL; | |
1391 | if (ndev) | |
1392 | dev_hold(ndev); | |
1393 | spin_unlock_bh(&mdev->iboe.lock); | |
1394 | if (ndev) | |
1395 | dev_put(ndev); | |
1396 | list_del(&ge->list); | |
1397 | kfree(ge); | |
1398 | } else | |
1399 | pr_warn("could not find mgid entry\n"); | |
1400 | ||
1401 | mutex_unlock(&mqp->mutex); | |
1402 | ||
1403 | return 0; | |
1404 | } | |
1405 | ||
1406 | static int init_node_data(struct mlx4_ib_dev *dev) | |
1407 | { | |
1408 | struct ib_smp *in_mad = NULL; | |
1409 | struct ib_smp *out_mad = NULL; | |
1410 | int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; | |
1411 | int err = -ENOMEM; | |
1412 | ||
1413 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
1414 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
1415 | if (!in_mad || !out_mad) | |
1416 | goto out; | |
1417 | ||
1418 | init_query_mad(in_mad); | |
1419 | in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; | |
1420 | if (mlx4_is_master(dev->dev)) | |
1421 | mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; | |
1422 | ||
1423 | err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad); | |
1424 | if (err) | |
1425 | goto out; | |
1426 | ||
1427 | memcpy(dev->ib_dev.node_desc, out_mad->data, 64); | |
1428 | ||
1429 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
1430 | ||
1431 | err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad); | |
1432 | if (err) | |
1433 | goto out; | |
1434 | ||
1435 | dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); | |
1436 | memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); | |
1437 | ||
1438 | out: | |
1439 | kfree(in_mad); | |
1440 | kfree(out_mad); | |
1441 | return err; | |
1442 | } | |
1443 | ||
1444 | static ssize_t show_hca(struct device *device, struct device_attribute *attr, | |
1445 | char *buf) | |
1446 | { | |
1447 | struct mlx4_ib_dev *dev = | |
1448 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
1449 | return sprintf(buf, "MT%d\n", dev->dev->persist->pdev->device); | |
1450 | } | |
1451 | ||
1452 | static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, | |
1453 | char *buf) | |
1454 | { | |
1455 | struct mlx4_ib_dev *dev = | |
1456 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
1457 | return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32), | |
1458 | (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, | |
1459 | (int) dev->dev->caps.fw_ver & 0xffff); | |
1460 | } | |
1461 | ||
1462 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, | |
1463 | char *buf) | |
1464 | { | |
1465 | struct mlx4_ib_dev *dev = | |
1466 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
1467 | return sprintf(buf, "%x\n", dev->dev->rev_id); | |
1468 | } | |
1469 | ||
1470 | static ssize_t show_board(struct device *device, struct device_attribute *attr, | |
1471 | char *buf) | |
1472 | { | |
1473 | struct mlx4_ib_dev *dev = | |
1474 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
1475 | return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, | |
1476 | dev->dev->board_id); | |
1477 | } | |
1478 | ||
1479 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); | |
1480 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
1481 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
1482 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
1483 | ||
1484 | static struct device_attribute *mlx4_class_attributes[] = { | |
1485 | &dev_attr_hw_rev, | |
1486 | &dev_attr_fw_ver, | |
1487 | &dev_attr_hca_type, | |
1488 | &dev_attr_board_id | |
1489 | }; | |
1490 | ||
1491 | static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, | |
1492 | struct net_device *dev) | |
1493 | { | |
1494 | memcpy(eui, dev->dev_addr, 3); | |
1495 | memcpy(eui + 5, dev->dev_addr + 3, 3); | |
1496 | if (vlan_id < 0x1000) { | |
1497 | eui[3] = vlan_id >> 8; | |
1498 | eui[4] = vlan_id & 0xff; | |
1499 | } else { | |
1500 | eui[3] = 0xff; | |
1501 | eui[4] = 0xfe; | |
1502 | } | |
1503 | eui[0] ^= 2; | |
1504 | } | |
1505 | ||
1506 | static void update_gids_task(struct work_struct *work) | |
1507 | { | |
1508 | struct update_gid_work *gw = container_of(work, struct update_gid_work, work); | |
1509 | struct mlx4_cmd_mailbox *mailbox; | |
1510 | union ib_gid *gids; | |
1511 | int err; | |
1512 | struct mlx4_dev *dev = gw->dev->dev; | |
1513 | int is_bonded = mlx4_is_bonded(dev); | |
1514 | ||
1515 | if (!gw->dev->ib_active) | |
1516 | return; | |
1517 | ||
1518 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
1519 | if (IS_ERR(mailbox)) { | |
1520 | pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox)); | |
1521 | return; | |
1522 | } | |
1523 | ||
1524 | gids = mailbox->buf; | |
1525 | memcpy(gids, gw->gids, sizeof gw->gids); | |
1526 | ||
1527 | err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port, | |
1528 | 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, | |
1529 | MLX4_CMD_WRAPPED); | |
1530 | if (err) | |
1531 | pr_warn("set port command failed\n"); | |
1532 | else | |
1533 | if ((gw->port == 1) || !is_bonded) | |
1534 | mlx4_ib_dispatch_event(gw->dev, | |
1535 | is_bonded ? 1 : gw->port, | |
1536 | IB_EVENT_GID_CHANGE); | |
1537 | ||
1538 | mlx4_free_cmd_mailbox(dev, mailbox); | |
1539 | kfree(gw); | |
1540 | } | |
1541 | ||
1542 | static void reset_gids_task(struct work_struct *work) | |
1543 | { | |
1544 | struct update_gid_work *gw = | |
1545 | container_of(work, struct update_gid_work, work); | |
1546 | struct mlx4_cmd_mailbox *mailbox; | |
1547 | union ib_gid *gids; | |
1548 | int err; | |
1549 | struct mlx4_dev *dev = gw->dev->dev; | |
1550 | ||
1551 | if (!gw->dev->ib_active) | |
1552 | return; | |
1553 | ||
1554 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
1555 | if (IS_ERR(mailbox)) { | |
1556 | pr_warn("reset gid table failed\n"); | |
1557 | goto free; | |
1558 | } | |
1559 | ||
1560 | gids = mailbox->buf; | |
1561 | memcpy(gids, gw->gids, sizeof(gw->gids)); | |
1562 | ||
1563 | if (mlx4_ib_port_link_layer(&gw->dev->ib_dev, gw->port) == | |
1564 | IB_LINK_LAYER_ETHERNET) { | |
1565 | err = mlx4_cmd(dev, mailbox->dma, | |
1566 | MLX4_SET_PORT_GID_TABLE << 8 | gw->port, | |
1567 | 1, MLX4_CMD_SET_PORT, | |
1568 | MLX4_CMD_TIME_CLASS_B, | |
1569 | MLX4_CMD_WRAPPED); | |
1570 | if (err) | |
1571 | pr_warn(KERN_WARNING | |
1572 | "set port %d command failed\n", gw->port); | |
1573 | } | |
1574 | ||
1575 | mlx4_free_cmd_mailbox(dev, mailbox); | |
1576 | free: | |
1577 | kfree(gw); | |
1578 | } | |
1579 | ||
1580 | static int update_gid_table(struct mlx4_ib_dev *dev, int port, | |
1581 | union ib_gid *gid, int clear, | |
1582 | int default_gid) | |
1583 | { | |
1584 | struct update_gid_work *work; | |
1585 | int i; | |
1586 | int need_update = 0; | |
1587 | int free = -1; | |
1588 | int found = -1; | |
1589 | int max_gids; | |
1590 | ||
1591 | if (default_gid) { | |
1592 | free = 0; | |
1593 | } else { | |
1594 | max_gids = dev->dev->caps.gid_table_len[port]; | |
1595 | for (i = 1; i < max_gids; ++i) { | |
1596 | if (!memcmp(&dev->iboe.gid_table[port - 1][i], gid, | |
1597 | sizeof(*gid))) | |
1598 | found = i; | |
1599 | ||
1600 | if (clear) { | |
1601 | if (found >= 0) { | |
1602 | need_update = 1; | |
1603 | dev->iboe.gid_table[port - 1][found] = | |
1604 | zgid; | |
1605 | break; | |
1606 | } | |
1607 | } else { | |
1608 | if (found >= 0) | |
1609 | break; | |
1610 | ||
1611 | if (free < 0 && | |
1612 | !memcmp(&dev->iboe.gid_table[port - 1][i], | |
1613 | &zgid, sizeof(*gid))) | |
1614 | free = i; | |
1615 | } | |
1616 | } | |
1617 | } | |
1618 | ||
1619 | if (found == -1 && !clear && free >= 0) { | |
1620 | dev->iboe.gid_table[port - 1][free] = *gid; | |
1621 | need_update = 1; | |
1622 | } | |
1623 | ||
1624 | if (!need_update) | |
1625 | return 0; | |
1626 | ||
1627 | work = kzalloc(sizeof(*work), GFP_ATOMIC); | |
1628 | if (!work) | |
1629 | return -ENOMEM; | |
1630 | ||
1631 | memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof(work->gids)); | |
1632 | INIT_WORK(&work->work, update_gids_task); | |
1633 | work->port = port; | |
1634 | work->dev = dev; | |
1635 | queue_work(wq, &work->work); | |
1636 | ||
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | static void mlx4_make_default_gid(struct net_device *dev, union ib_gid *gid) | |
1641 | { | |
1642 | gid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL); | |
1643 | mlx4_addrconf_ifid_eui48(&gid->raw[8], 0xffff, dev); | |
1644 | } | |
1645 | ||
1646 | ||
1647 | static int reset_gid_table(struct mlx4_ib_dev *dev, u8 port) | |
1648 | { | |
1649 | struct update_gid_work *work; | |
1650 | ||
1651 | work = kzalloc(sizeof(*work), GFP_ATOMIC); | |
1652 | if (!work) | |
1653 | return -ENOMEM; | |
1654 | ||
1655 | memset(dev->iboe.gid_table[port - 1], 0, sizeof(work->gids)); | |
1656 | memset(work->gids, 0, sizeof(work->gids)); | |
1657 | INIT_WORK(&work->work, reset_gids_task); | |
1658 | work->dev = dev; | |
1659 | work->port = port; | |
1660 | queue_work(wq, &work->work); | |
1661 | return 0; | |
1662 | } | |
1663 | ||
1664 | static int mlx4_ib_addr_event(int event, struct net_device *event_netdev, | |
1665 | struct mlx4_ib_dev *ibdev, union ib_gid *gid) | |
1666 | { | |
1667 | struct mlx4_ib_iboe *iboe; | |
1668 | int port = 0; | |
1669 | struct net_device *real_dev = rdma_vlan_dev_real_dev(event_netdev) ? | |
1670 | rdma_vlan_dev_real_dev(event_netdev) : | |
1671 | event_netdev; | |
1672 | union ib_gid default_gid; | |
1673 | ||
1674 | mlx4_make_default_gid(real_dev, &default_gid); | |
1675 | ||
1676 | if (!memcmp(gid, &default_gid, sizeof(*gid))) | |
1677 | return 0; | |
1678 | ||
1679 | if (event != NETDEV_DOWN && event != NETDEV_UP) | |
1680 | return 0; | |
1681 | ||
1682 | if ((real_dev != event_netdev) && | |
1683 | (event == NETDEV_DOWN) && | |
1684 | rdma_link_local_addr((struct in6_addr *)gid)) | |
1685 | return 0; | |
1686 | ||
1687 | iboe = &ibdev->iboe; | |
1688 | spin_lock_bh(&iboe->lock); | |
1689 | ||
1690 | for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) | |
1691 | if ((netif_is_bond_master(real_dev) && | |
1692 | (real_dev == iboe->masters[port - 1])) || | |
1693 | (!netif_is_bond_master(real_dev) && | |
1694 | (real_dev == iboe->netdevs[port - 1]))) | |
1695 | update_gid_table(ibdev, port, gid, | |
1696 | event == NETDEV_DOWN, 0); | |
1697 | ||
1698 | spin_unlock_bh(&iboe->lock); | |
1699 | return 0; | |
1700 | ||
1701 | } | |
1702 | ||
1703 | static u8 mlx4_ib_get_dev_port(struct net_device *dev, | |
1704 | struct mlx4_ib_dev *ibdev) | |
1705 | { | |
1706 | u8 port = 0; | |
1707 | struct mlx4_ib_iboe *iboe; | |
1708 | struct net_device *real_dev = rdma_vlan_dev_real_dev(dev) ? | |
1709 | rdma_vlan_dev_real_dev(dev) : dev; | |
1710 | ||
1711 | iboe = &ibdev->iboe; | |
1712 | ||
1713 | for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) | |
1714 | if ((netif_is_bond_master(real_dev) && | |
1715 | (real_dev == iboe->masters[port - 1])) || | |
1716 | (!netif_is_bond_master(real_dev) && | |
1717 | (real_dev == iboe->netdevs[port - 1]))) | |
1718 | break; | |
1719 | ||
1720 | if ((port == 0) || (port > ibdev->dev->caps.num_ports)) | |
1721 | return 0; | |
1722 | else | |
1723 | return port; | |
1724 | } | |
1725 | ||
1726 | static int mlx4_ib_inet_event(struct notifier_block *this, unsigned long event, | |
1727 | void *ptr) | |
1728 | { | |
1729 | struct mlx4_ib_dev *ibdev; | |
1730 | struct in_ifaddr *ifa = ptr; | |
1731 | union ib_gid gid; | |
1732 | struct net_device *event_netdev = ifa->ifa_dev->dev; | |
1733 | ||
1734 | ipv6_addr_set_v4mapped(ifa->ifa_address, (struct in6_addr *)&gid); | |
1735 | ||
1736 | ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb_inet); | |
1737 | ||
1738 | mlx4_ib_addr_event(event, event_netdev, ibdev, &gid); | |
1739 | return NOTIFY_DONE; | |
1740 | } | |
1741 | ||
1742 | #if IS_ENABLED(CONFIG_IPV6) | |
1743 | static int mlx4_ib_inet6_event(struct notifier_block *this, unsigned long event, | |
1744 | void *ptr) | |
1745 | { | |
1746 | struct mlx4_ib_dev *ibdev; | |
1747 | struct inet6_ifaddr *ifa = ptr; | |
1748 | union ib_gid *gid = (union ib_gid *)&ifa->addr; | |
1749 | struct net_device *event_netdev = ifa->idev->dev; | |
1750 | ||
1751 | ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb_inet6); | |
1752 | ||
1753 | mlx4_ib_addr_event(event, event_netdev, ibdev, gid); | |
1754 | return NOTIFY_DONE; | |
1755 | } | |
1756 | #endif | |
1757 | ||
1758 | #define MLX4_IB_INVALID_MAC ((u64)-1) | |
1759 | static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev, | |
1760 | struct net_device *dev, | |
1761 | int port) | |
1762 | { | |
1763 | u64 new_smac = 0; | |
1764 | u64 release_mac = MLX4_IB_INVALID_MAC; | |
1765 | struct mlx4_ib_qp *qp; | |
1766 | ||
1767 | read_lock(&dev_base_lock); | |
1768 | new_smac = mlx4_mac_to_u64(dev->dev_addr); | |
1769 | read_unlock(&dev_base_lock); | |
1770 | ||
1771 | atomic64_set(&ibdev->iboe.mac[port - 1], new_smac); | |
1772 | ||
1773 | /* no need for update QP1 and mac registration in non-SRIOV */ | |
1774 | if (!mlx4_is_mfunc(ibdev->dev)) | |
1775 | return; | |
1776 | ||
1777 | mutex_lock(&ibdev->qp1_proxy_lock[port - 1]); | |
1778 | qp = ibdev->qp1_proxy[port - 1]; | |
1779 | if (qp) { | |
1780 | int new_smac_index; | |
1781 | u64 old_smac; | |
1782 | struct mlx4_update_qp_params update_params; | |
1783 | ||
1784 | mutex_lock(&qp->mutex); | |
1785 | old_smac = qp->pri.smac; | |
1786 | if (new_smac == old_smac) | |
1787 | goto unlock; | |
1788 | ||
1789 | new_smac_index = mlx4_register_mac(ibdev->dev, port, new_smac); | |
1790 | ||
1791 | if (new_smac_index < 0) | |
1792 | goto unlock; | |
1793 | ||
1794 | update_params.smac_index = new_smac_index; | |
1795 | if (mlx4_update_qp(ibdev->dev, qp->mqp.qpn, MLX4_UPDATE_QP_SMAC, | |
1796 | &update_params)) { | |
1797 | release_mac = new_smac; | |
1798 | goto unlock; | |
1799 | } | |
1800 | /* if old port was zero, no mac was yet registered for this QP */ | |
1801 | if (qp->pri.smac_port) | |
1802 | release_mac = old_smac; | |
1803 | qp->pri.smac = new_smac; | |
1804 | qp->pri.smac_port = port; | |
1805 | qp->pri.smac_index = new_smac_index; | |
1806 | } | |
1807 | ||
1808 | unlock: | |
1809 | if (release_mac != MLX4_IB_INVALID_MAC) | |
1810 | mlx4_unregister_mac(ibdev->dev, port, release_mac); | |
1811 | if (qp) | |
1812 | mutex_unlock(&qp->mutex); | |
1813 | mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]); | |
1814 | } | |
1815 | ||
1816 | static void mlx4_ib_get_dev_addr(struct net_device *dev, | |
1817 | struct mlx4_ib_dev *ibdev, u8 port) | |
1818 | { | |
1819 | struct in_device *in_dev; | |
1820 | #if IS_ENABLED(CONFIG_IPV6) | |
1821 | struct inet6_dev *in6_dev; | |
1822 | union ib_gid *pgid; | |
1823 | struct inet6_ifaddr *ifp; | |
1824 | union ib_gid default_gid; | |
1825 | #endif | |
1826 | union ib_gid gid; | |
1827 | ||
1828 | ||
1829 | if ((port == 0) || (port > ibdev->dev->caps.num_ports)) | |
1830 | return; | |
1831 | ||
1832 | /* IPv4 gids */ | |
1833 | in_dev = in_dev_get(dev); | |
1834 | if (in_dev) { | |
1835 | for_ifa(in_dev) { | |
1836 | /*ifa->ifa_address;*/ | |
1837 | ipv6_addr_set_v4mapped(ifa->ifa_address, | |
1838 | (struct in6_addr *)&gid); | |
1839 | update_gid_table(ibdev, port, &gid, 0, 0); | |
1840 | } | |
1841 | endfor_ifa(in_dev); | |
1842 | in_dev_put(in_dev); | |
1843 | } | |
1844 | #if IS_ENABLED(CONFIG_IPV6) | |
1845 | mlx4_make_default_gid(dev, &default_gid); | |
1846 | /* IPv6 gids */ | |
1847 | in6_dev = in6_dev_get(dev); | |
1848 | if (in6_dev) { | |
1849 | read_lock_bh(&in6_dev->lock); | |
1850 | list_for_each_entry(ifp, &in6_dev->addr_list, if_list) { | |
1851 | pgid = (union ib_gid *)&ifp->addr; | |
1852 | if (!memcmp(pgid, &default_gid, sizeof(*pgid))) | |
1853 | continue; | |
1854 | update_gid_table(ibdev, port, pgid, 0, 0); | |
1855 | } | |
1856 | read_unlock_bh(&in6_dev->lock); | |
1857 | in6_dev_put(in6_dev); | |
1858 | } | |
1859 | #endif | |
1860 | } | |
1861 | ||
1862 | static void mlx4_ib_set_default_gid(struct mlx4_ib_dev *ibdev, | |
1863 | struct net_device *dev, u8 port) | |
1864 | { | |
1865 | union ib_gid gid; | |
1866 | mlx4_make_default_gid(dev, &gid); | |
1867 | update_gid_table(ibdev, port, &gid, 0, 1); | |
1868 | } | |
1869 | ||
1870 | static int mlx4_ib_init_gid_table(struct mlx4_ib_dev *ibdev) | |
1871 | { | |
1872 | struct net_device *dev; | |
1873 | struct mlx4_ib_iboe *iboe = &ibdev->iboe; | |
1874 | int i; | |
1875 | int err = 0; | |
1876 | ||
1877 | for (i = 1; i <= ibdev->num_ports; ++i) { | |
1878 | if (rdma_port_get_link_layer(&ibdev->ib_dev, i) == | |
1879 | IB_LINK_LAYER_ETHERNET) { | |
1880 | err = reset_gid_table(ibdev, i); | |
1881 | if (err) | |
1882 | goto out; | |
1883 | } | |
1884 | } | |
1885 | ||
1886 | read_lock(&dev_base_lock); | |
1887 | spin_lock_bh(&iboe->lock); | |
1888 | ||
1889 | for_each_netdev(&init_net, dev) { | |
1890 | u8 port = mlx4_ib_get_dev_port(dev, ibdev); | |
1891 | /* port will be non-zero only for ETH ports */ | |
1892 | if (port) { | |
1893 | mlx4_ib_set_default_gid(ibdev, dev, port); | |
1894 | mlx4_ib_get_dev_addr(dev, ibdev, port); | |
1895 | } | |
1896 | } | |
1897 | ||
1898 | spin_unlock_bh(&iboe->lock); | |
1899 | read_unlock(&dev_base_lock); | |
1900 | out: | |
1901 | return err; | |
1902 | } | |
1903 | ||
1904 | static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev, | |
1905 | struct net_device *dev, | |
1906 | unsigned long event) | |
1907 | ||
1908 | { | |
1909 | struct mlx4_ib_iboe *iboe; | |
1910 | int update_qps_port = -1; | |
1911 | int port; | |
1912 | ||
1913 | iboe = &ibdev->iboe; | |
1914 | ||
1915 | spin_lock_bh(&iboe->lock); | |
1916 | mlx4_foreach_ib_transport_port(port, ibdev->dev) { | |
1917 | enum ib_port_state port_state = IB_PORT_NOP; | |
1918 | struct net_device *old_master = iboe->masters[port - 1]; | |
1919 | struct net_device *curr_netdev; | |
1920 | struct net_device *curr_master; | |
1921 | ||
1922 | iboe->netdevs[port - 1] = | |
1923 | mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port); | |
1924 | if (iboe->netdevs[port - 1]) | |
1925 | mlx4_ib_set_default_gid(ibdev, | |
1926 | iboe->netdevs[port - 1], port); | |
1927 | curr_netdev = iboe->netdevs[port - 1]; | |
1928 | ||
1929 | if (iboe->netdevs[port - 1] && | |
1930 | netif_is_bond_slave(iboe->netdevs[port - 1])) { | |
1931 | iboe->masters[port - 1] = netdev_master_upper_dev_get( | |
1932 | iboe->netdevs[port - 1]); | |
1933 | } else { | |
1934 | iboe->masters[port - 1] = NULL; | |
1935 | } | |
1936 | curr_master = iboe->masters[port - 1]; | |
1937 | ||
1938 | if (dev == iboe->netdevs[port - 1] && | |
1939 | (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER || | |
1940 | event == NETDEV_UP || event == NETDEV_CHANGE)) | |
1941 | update_qps_port = port; | |
1942 | ||
1943 | if (curr_netdev) { | |
1944 | port_state = (netif_running(curr_netdev) && netif_carrier_ok(curr_netdev)) ? | |
1945 | IB_PORT_ACTIVE : IB_PORT_DOWN; | |
1946 | mlx4_ib_set_default_gid(ibdev, curr_netdev, port); | |
1947 | if (curr_master) { | |
1948 | /* if using bonding/team and a slave port is down, we | |
1949 | * don't want the bond IP based gids in the table since | |
1950 | * flows that select port by gid may get the down port. | |
1951 | */ | |
1952 | if (port_state == IB_PORT_DOWN && | |
1953 | !mlx4_is_bonded(ibdev->dev)) { | |
1954 | reset_gid_table(ibdev, port); | |
1955 | mlx4_ib_set_default_gid(ibdev, | |
1956 | curr_netdev, | |
1957 | port); | |
1958 | } else { | |
1959 | /* gids from the upper dev (bond/team) | |
1960 | * should appear in port's gid table | |
1961 | */ | |
1962 | mlx4_ib_get_dev_addr(curr_master, | |
1963 | ibdev, port); | |
1964 | } | |
1965 | } | |
1966 | /* if bonding is used it is possible that we add it to | |
1967 | * masters only after IP address is assigned to the | |
1968 | * net bonding interface. | |
1969 | */ | |
1970 | if (curr_master && (old_master != curr_master)) { | |
1971 | reset_gid_table(ibdev, port); | |
1972 | mlx4_ib_set_default_gid(ibdev, | |
1973 | curr_netdev, port); | |
1974 | mlx4_ib_get_dev_addr(curr_master, ibdev, port); | |
1975 | } | |
1976 | ||
1977 | if (!curr_master && (old_master != curr_master)) { | |
1978 | reset_gid_table(ibdev, port); | |
1979 | mlx4_ib_set_default_gid(ibdev, | |
1980 | curr_netdev, port); | |
1981 | mlx4_ib_get_dev_addr(curr_netdev, ibdev, port); | |
1982 | } | |
1983 | } else { | |
1984 | reset_gid_table(ibdev, port); | |
1985 | } | |
1986 | } | |
1987 | ||
1988 | spin_unlock_bh(&iboe->lock); | |
1989 | ||
1990 | if (update_qps_port > 0) | |
1991 | mlx4_ib_update_qps(ibdev, dev, update_qps_port); | |
1992 | } | |
1993 | ||
1994 | static int mlx4_ib_netdev_event(struct notifier_block *this, | |
1995 | unsigned long event, void *ptr) | |
1996 | { | |
1997 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1998 | struct mlx4_ib_dev *ibdev; | |
1999 | ||
2000 | if (!net_eq(dev_net(dev), &init_net)) | |
2001 | return NOTIFY_DONE; | |
2002 | ||
2003 | ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb); | |
2004 | mlx4_ib_scan_netdevs(ibdev, dev, event); | |
2005 | ||
2006 | return NOTIFY_DONE; | |
2007 | } | |
2008 | ||
2009 | static void init_pkeys(struct mlx4_ib_dev *ibdev) | |
2010 | { | |
2011 | int port; | |
2012 | int slave; | |
2013 | int i; | |
2014 | ||
2015 | if (mlx4_is_master(ibdev->dev)) { | |
2016 | for (slave = 0; slave <= ibdev->dev->persist->num_vfs; | |
2017 | ++slave) { | |
2018 | for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) { | |
2019 | for (i = 0; | |
2020 | i < ibdev->dev->phys_caps.pkey_phys_table_len[port]; | |
2021 | ++i) { | |
2022 | ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] = | |
2023 | /* master has the identity virt2phys pkey mapping */ | |
2024 | (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i : | |
2025 | ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1; | |
2026 | mlx4_sync_pkey_table(ibdev->dev, slave, port, i, | |
2027 | ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]); | |
2028 | } | |
2029 | } | |
2030 | } | |
2031 | /* initialize pkey cache */ | |
2032 | for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) { | |
2033 | for (i = 0; | |
2034 | i < ibdev->dev->phys_caps.pkey_phys_table_len[port]; | |
2035 | ++i) | |
2036 | ibdev->pkeys.phys_pkey_cache[port-1][i] = | |
2037 | (i) ? 0 : 0xFFFF; | |
2038 | } | |
2039 | } | |
2040 | } | |
2041 | ||
2042 | static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) | |
2043 | { | |
2044 | char name[80]; | |
2045 | int eq_per_port = 0; | |
2046 | int added_eqs = 0; | |
2047 | int total_eqs = 0; | |
2048 | int i, j, eq; | |
2049 | ||
2050 | /* Legacy mode or comp_pool is not large enough */ | |
2051 | if (dev->caps.comp_pool == 0 || | |
2052 | dev->caps.num_ports > dev->caps.comp_pool) | |
2053 | return; | |
2054 | ||
2055 | eq_per_port = dev->caps.comp_pool / dev->caps.num_ports; | |
2056 | ||
2057 | /* Init eq table */ | |
2058 | added_eqs = 0; | |
2059 | mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) | |
2060 | added_eqs += eq_per_port; | |
2061 | ||
2062 | total_eqs = dev->caps.num_comp_vectors + added_eqs; | |
2063 | ||
2064 | ibdev->eq_table = kzalloc(total_eqs * sizeof(int), GFP_KERNEL); | |
2065 | if (!ibdev->eq_table) | |
2066 | return; | |
2067 | ||
2068 | ibdev->eq_added = added_eqs; | |
2069 | ||
2070 | eq = 0; | |
2071 | mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) { | |
2072 | for (j = 0; j < eq_per_port; j++) { | |
2073 | snprintf(name, sizeof(name), "mlx4-ib-%d-%d@%s", | |
2074 | i, j, dev->persist->pdev->bus->name); | |
2075 | /* Set IRQ for specific name (per ring) */ | |
2076 | if (mlx4_assign_eq(dev, name, NULL, | |
2077 | &ibdev->eq_table[eq])) { | |
2078 | /* Use legacy (same as mlx4_en driver) */ | |
2079 | pr_warn("Can't allocate EQ %d; reverting to legacy\n", eq); | |
2080 | ibdev->eq_table[eq] = | |
2081 | (eq % dev->caps.num_comp_vectors); | |
2082 | } | |
2083 | eq++; | |
2084 | } | |
2085 | } | |
2086 | ||
2087 | /* Fill the reset of the vector with legacy EQ */ | |
2088 | for (i = 0, eq = added_eqs; i < dev->caps.num_comp_vectors; i++) | |
2089 | ibdev->eq_table[eq++] = i; | |
2090 | ||
2091 | /* Advertise the new number of EQs to clients */ | |
2092 | ibdev->ib_dev.num_comp_vectors = total_eqs; | |
2093 | } | |
2094 | ||
2095 | static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) | |
2096 | { | |
2097 | int i; | |
2098 | ||
2099 | /* no additional eqs were added */ | |
2100 | if (!ibdev->eq_table) | |
2101 | return; | |
2102 | ||
2103 | /* Reset the advertised EQ number */ | |
2104 | ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; | |
2105 | ||
2106 | /* Free only the added eqs */ | |
2107 | for (i = 0; i < ibdev->eq_added; i++) { | |
2108 | /* Don't free legacy eqs if used */ | |
2109 | if (ibdev->eq_table[i] <= dev->caps.num_comp_vectors) | |
2110 | continue; | |
2111 | mlx4_release_eq(dev, ibdev->eq_table[i]); | |
2112 | } | |
2113 | ||
2114 | kfree(ibdev->eq_table); | |
2115 | } | |
2116 | ||
2117 | static void *mlx4_ib_add(struct mlx4_dev *dev) | |
2118 | { | |
2119 | struct mlx4_ib_dev *ibdev; | |
2120 | int num_ports = 0; | |
2121 | int i, j; | |
2122 | int err; | |
2123 | struct mlx4_ib_iboe *iboe; | |
2124 | int ib_num_ports = 0; | |
2125 | int num_req_counters; | |
2126 | ||
2127 | pr_info_once("%s", mlx4_ib_version); | |
2128 | ||
2129 | num_ports = 0; | |
2130 | mlx4_foreach_ib_transport_port(i, dev) | |
2131 | num_ports++; | |
2132 | ||
2133 | /* No point in registering a device with no ports... */ | |
2134 | if (num_ports == 0) | |
2135 | return NULL; | |
2136 | ||
2137 | ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); | |
2138 | if (!ibdev) { | |
2139 | dev_err(&dev->persist->pdev->dev, | |
2140 | "Device struct alloc failed\n"); | |
2141 | return NULL; | |
2142 | } | |
2143 | ||
2144 | iboe = &ibdev->iboe; | |
2145 | ||
2146 | if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) | |
2147 | goto err_dealloc; | |
2148 | ||
2149 | if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) | |
2150 | goto err_pd; | |
2151 | ||
2152 | ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT, | |
2153 | PAGE_SIZE); | |
2154 | if (!ibdev->uar_map) | |
2155 | goto err_uar; | |
2156 | MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); | |
2157 | ||
2158 | ibdev->dev = dev; | |
2159 | ibdev->bond_next_port = 0; | |
2160 | ||
2161 | strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); | |
2162 | ibdev->ib_dev.owner = THIS_MODULE; | |
2163 | ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; | |
2164 | ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; | |
2165 | ibdev->num_ports = num_ports; | |
2166 | ibdev->ib_dev.phys_port_cnt = mlx4_is_bonded(dev) ? | |
2167 | 1 : ibdev->num_ports; | |
2168 | ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; | |
2169 | ibdev->ib_dev.dma_device = &dev->persist->pdev->dev; | |
2170 | ||
2171 | if (dev->caps.userspace_caps) | |
2172 | ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION; | |
2173 | else | |
2174 | ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION; | |
2175 | ||
2176 | ibdev->ib_dev.uverbs_cmd_mask = | |
2177 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
2178 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
2179 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
2180 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
2181 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
2182 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
2183 | (1ull << IB_USER_VERBS_CMD_REREG_MR) | | |
2184 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
2185 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
2186 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
2187 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | | |
2188 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
2189 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
2190 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
2191 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | | |
2192 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
2193 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
2194 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | | |
2195 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
2196 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
2197 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | | |
2198 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | | |
2199 | (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) | | |
2200 | (1ull << IB_USER_VERBS_CMD_OPEN_QP); | |
2201 | ||
2202 | ibdev->ib_dev.query_device = mlx4_ib_query_device; | |
2203 | ibdev->ib_dev.query_port = mlx4_ib_query_port; | |
2204 | ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer; | |
2205 | ibdev->ib_dev.query_gid = mlx4_ib_query_gid; | |
2206 | ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey; | |
2207 | ibdev->ib_dev.modify_device = mlx4_ib_modify_device; | |
2208 | ibdev->ib_dev.modify_port = mlx4_ib_modify_port; | |
2209 | ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext; | |
2210 | ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext; | |
2211 | ibdev->ib_dev.mmap = mlx4_ib_mmap; | |
2212 | ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd; | |
2213 | ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd; | |
2214 | ibdev->ib_dev.create_ah = mlx4_ib_create_ah; | |
2215 | ibdev->ib_dev.query_ah = mlx4_ib_query_ah; | |
2216 | ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah; | |
2217 | ibdev->ib_dev.create_srq = mlx4_ib_create_srq; | |
2218 | ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq; | |
2219 | ibdev->ib_dev.query_srq = mlx4_ib_query_srq; | |
2220 | ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq; | |
2221 | ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv; | |
2222 | ibdev->ib_dev.create_qp = mlx4_ib_create_qp; | |
2223 | ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp; | |
2224 | ibdev->ib_dev.query_qp = mlx4_ib_query_qp; | |
2225 | ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp; | |
2226 | ibdev->ib_dev.post_send = mlx4_ib_post_send; | |
2227 | ibdev->ib_dev.post_recv = mlx4_ib_post_recv; | |
2228 | ibdev->ib_dev.create_cq = mlx4_ib_create_cq; | |
2229 | ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq; | |
2230 | ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq; | |
2231 | ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq; | |
2232 | ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq; | |
2233 | ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq; | |
2234 | ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; | |
2235 | ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; | |
2236 | ibdev->ib_dev.rereg_user_mr = mlx4_ib_rereg_user_mr; | |
2237 | ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; | |
2238 | ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr; | |
2239 | ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list; | |
2240 | ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list; | |
2241 | ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; | |
2242 | ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; | |
2243 | ibdev->ib_dev.process_mad = mlx4_ib_process_mad; | |
2244 | ||
2245 | if (!mlx4_is_slave(ibdev->dev)) { | |
2246 | ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; | |
2247 | ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr; | |
2248 | ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr; | |
2249 | ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc; | |
2250 | } | |
2251 | ||
2252 | if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW || | |
2253 | dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) { | |
2254 | ibdev->ib_dev.alloc_mw = mlx4_ib_alloc_mw; | |
2255 | ibdev->ib_dev.bind_mw = mlx4_ib_bind_mw; | |
2256 | ibdev->ib_dev.dealloc_mw = mlx4_ib_dealloc_mw; | |
2257 | ||
2258 | ibdev->ib_dev.uverbs_cmd_mask |= | |
2259 | (1ull << IB_USER_VERBS_CMD_ALLOC_MW) | | |
2260 | (1ull << IB_USER_VERBS_CMD_DEALLOC_MW); | |
2261 | } | |
2262 | ||
2263 | if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) { | |
2264 | ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd; | |
2265 | ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd; | |
2266 | ibdev->ib_dev.uverbs_cmd_mask |= | |
2267 | (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | | |
2268 | (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); | |
2269 | } | |
2270 | ||
2271 | if (check_flow_steering_support(dev)) { | |
2272 | ibdev->steering_support = MLX4_STEERING_MODE_DEVICE_MANAGED; | |
2273 | ibdev->ib_dev.create_flow = mlx4_ib_create_flow; | |
2274 | ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow; | |
2275 | ||
2276 | ibdev->ib_dev.uverbs_ex_cmd_mask |= | |
2277 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) | | |
2278 | (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW); | |
2279 | } | |
2280 | ||
2281 | mlx4_ib_alloc_eqs(dev, ibdev); | |
2282 | ||
2283 | spin_lock_init(&iboe->lock); | |
2284 | ||
2285 | if (init_node_data(ibdev)) | |
2286 | goto err_map; | |
2287 | ||
2288 | num_req_counters = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports; | |
2289 | for (i = 0; i < num_req_counters; ++i) { | |
2290 | mutex_init(&ibdev->qp1_proxy_lock[i]); | |
2291 | if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) == | |
2292 | IB_LINK_LAYER_ETHERNET) { | |
2293 | err = mlx4_counter_alloc(ibdev->dev, &ibdev->counters[i]); | |
2294 | if (err) | |
2295 | ibdev->counters[i] = -1; | |
2296 | } else { | |
2297 | ibdev->counters[i] = -1; | |
2298 | } | |
2299 | } | |
2300 | if (mlx4_is_bonded(dev)) | |
2301 | for (i = 1; i < ibdev->num_ports ; ++i) | |
2302 | ibdev->counters[i] = ibdev->counters[0]; | |
2303 | ||
2304 | ||
2305 | mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) | |
2306 | ib_num_ports++; | |
2307 | ||
2308 | spin_lock_init(&ibdev->sm_lock); | |
2309 | mutex_init(&ibdev->cap_mask_mutex); | |
2310 | INIT_LIST_HEAD(&ibdev->qp_list); | |
2311 | spin_lock_init(&ibdev->reset_flow_resource_lock); | |
2312 | ||
2313 | if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED && | |
2314 | ib_num_ports) { | |
2315 | ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS; | |
2316 | err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count, | |
2317 | MLX4_IB_UC_STEER_QPN_ALIGN, | |
2318 | &ibdev->steer_qpn_base, 0); | |
2319 | if (err) | |
2320 | goto err_counter; | |
2321 | ||
2322 | ibdev->ib_uc_qpns_bitmap = | |
2323 | kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) * | |
2324 | sizeof(long), | |
2325 | GFP_KERNEL); | |
2326 | if (!ibdev->ib_uc_qpns_bitmap) { | |
2327 | dev_err(&dev->persist->pdev->dev, | |
2328 | "bit map alloc failed\n"); | |
2329 | goto err_steer_qp_release; | |
2330 | } | |
2331 | ||
2332 | bitmap_zero(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count); | |
2333 | ||
2334 | err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE( | |
2335 | dev, ibdev->steer_qpn_base, | |
2336 | ibdev->steer_qpn_base + | |
2337 | ibdev->steer_qpn_count - 1); | |
2338 | if (err) | |
2339 | goto err_steer_free_bitmap; | |
2340 | } | |
2341 | ||
2342 | for (j = 1; j <= ibdev->dev->caps.num_ports; j++) | |
2343 | atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]); | |
2344 | ||
2345 | if (ib_register_device(&ibdev->ib_dev, NULL)) | |
2346 | goto err_steer_free_bitmap; | |
2347 | ||
2348 | if (mlx4_ib_mad_init(ibdev)) | |
2349 | goto err_reg; | |
2350 | ||
2351 | if (mlx4_ib_init_sriov(ibdev)) | |
2352 | goto err_mad; | |
2353 | ||
2354 | if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE) { | |
2355 | if (!iboe->nb.notifier_call) { | |
2356 | iboe->nb.notifier_call = mlx4_ib_netdev_event; | |
2357 | err = register_netdevice_notifier(&iboe->nb); | |
2358 | if (err) { | |
2359 | iboe->nb.notifier_call = NULL; | |
2360 | goto err_notif; | |
2361 | } | |
2362 | } | |
2363 | if (!iboe->nb_inet.notifier_call) { | |
2364 | iboe->nb_inet.notifier_call = mlx4_ib_inet_event; | |
2365 | err = register_inetaddr_notifier(&iboe->nb_inet); | |
2366 | if (err) { | |
2367 | iboe->nb_inet.notifier_call = NULL; | |
2368 | goto err_notif; | |
2369 | } | |
2370 | } | |
2371 | #if IS_ENABLED(CONFIG_IPV6) | |
2372 | if (!iboe->nb_inet6.notifier_call) { | |
2373 | iboe->nb_inet6.notifier_call = mlx4_ib_inet6_event; | |
2374 | err = register_inet6addr_notifier(&iboe->nb_inet6); | |
2375 | if (err) { | |
2376 | iboe->nb_inet6.notifier_call = NULL; | |
2377 | goto err_notif; | |
2378 | } | |
2379 | } | |
2380 | #endif | |
2381 | if (mlx4_ib_init_gid_table(ibdev)) | |
2382 | goto err_notif; | |
2383 | } | |
2384 | ||
2385 | for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) { | |
2386 | if (device_create_file(&ibdev->ib_dev.dev, | |
2387 | mlx4_class_attributes[j])) | |
2388 | goto err_notif; | |
2389 | } | |
2390 | ||
2391 | ibdev->ib_active = true; | |
2392 | ||
2393 | if (mlx4_is_mfunc(ibdev->dev)) | |
2394 | init_pkeys(ibdev); | |
2395 | ||
2396 | /* create paravirt contexts for any VFs which are active */ | |
2397 | if (mlx4_is_master(ibdev->dev)) { | |
2398 | for (j = 0; j < MLX4_MFUNC_MAX; j++) { | |
2399 | if (j == mlx4_master_func_num(ibdev->dev)) | |
2400 | continue; | |
2401 | if (mlx4_is_slave_active(ibdev->dev, j)) | |
2402 | do_slave_init(ibdev, j, 1); | |
2403 | } | |
2404 | } | |
2405 | return ibdev; | |
2406 | ||
2407 | err_notif: | |
2408 | if (ibdev->iboe.nb.notifier_call) { | |
2409 | if (unregister_netdevice_notifier(&ibdev->iboe.nb)) | |
2410 | pr_warn("failure unregistering notifier\n"); | |
2411 | ibdev->iboe.nb.notifier_call = NULL; | |
2412 | } | |
2413 | if (ibdev->iboe.nb_inet.notifier_call) { | |
2414 | if (unregister_inetaddr_notifier(&ibdev->iboe.nb_inet)) | |
2415 | pr_warn("failure unregistering notifier\n"); | |
2416 | ibdev->iboe.nb_inet.notifier_call = NULL; | |
2417 | } | |
2418 | #if IS_ENABLED(CONFIG_IPV6) | |
2419 | if (ibdev->iboe.nb_inet6.notifier_call) { | |
2420 | if (unregister_inet6addr_notifier(&ibdev->iboe.nb_inet6)) | |
2421 | pr_warn("failure unregistering notifier\n"); | |
2422 | ibdev->iboe.nb_inet6.notifier_call = NULL; | |
2423 | } | |
2424 | #endif | |
2425 | flush_workqueue(wq); | |
2426 | ||
2427 | mlx4_ib_close_sriov(ibdev); | |
2428 | ||
2429 | err_mad: | |
2430 | mlx4_ib_mad_cleanup(ibdev); | |
2431 | ||
2432 | err_reg: | |
2433 | ib_unregister_device(&ibdev->ib_dev); | |
2434 | ||
2435 | err_steer_free_bitmap: | |
2436 | kfree(ibdev->ib_uc_qpns_bitmap); | |
2437 | ||
2438 | err_steer_qp_release: | |
2439 | if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) | |
2440 | mlx4_qp_release_range(dev, ibdev->steer_qpn_base, | |
2441 | ibdev->steer_qpn_count); | |
2442 | err_counter: | |
2443 | for (; i; --i) | |
2444 | if (ibdev->counters[i - 1] != -1) | |
2445 | mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]); | |
2446 | ||
2447 | err_map: | |
2448 | iounmap(ibdev->uar_map); | |
2449 | ||
2450 | err_uar: | |
2451 | mlx4_uar_free(dev, &ibdev->priv_uar); | |
2452 | ||
2453 | err_pd: | |
2454 | mlx4_pd_free(dev, ibdev->priv_pdn); | |
2455 | ||
2456 | err_dealloc: | |
2457 | ib_dealloc_device(&ibdev->ib_dev); | |
2458 | ||
2459 | return NULL; | |
2460 | } | |
2461 | ||
2462 | int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn) | |
2463 | { | |
2464 | int offset; | |
2465 | ||
2466 | WARN_ON(!dev->ib_uc_qpns_bitmap); | |
2467 | ||
2468 | offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap, | |
2469 | dev->steer_qpn_count, | |
2470 | get_count_order(count)); | |
2471 | if (offset < 0) | |
2472 | return offset; | |
2473 | ||
2474 | *qpn = dev->steer_qpn_base + offset; | |
2475 | return 0; | |
2476 | } | |
2477 | ||
2478 | void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count) | |
2479 | { | |
2480 | if (!qpn || | |
2481 | dev->steering_support != MLX4_STEERING_MODE_DEVICE_MANAGED) | |
2482 | return; | |
2483 | ||
2484 | BUG_ON(qpn < dev->steer_qpn_base); | |
2485 | ||
2486 | bitmap_release_region(dev->ib_uc_qpns_bitmap, | |
2487 | qpn - dev->steer_qpn_base, | |
2488 | get_count_order(count)); | |
2489 | } | |
2490 | ||
2491 | int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, | |
2492 | int is_attach) | |
2493 | { | |
2494 | int err; | |
2495 | size_t flow_size; | |
2496 | struct ib_flow_attr *flow = NULL; | |
2497 | struct ib_flow_spec_ib *ib_spec; | |
2498 | ||
2499 | if (is_attach) { | |
2500 | flow_size = sizeof(struct ib_flow_attr) + | |
2501 | sizeof(struct ib_flow_spec_ib); | |
2502 | flow = kzalloc(flow_size, GFP_KERNEL); | |
2503 | if (!flow) | |
2504 | return -ENOMEM; | |
2505 | flow->port = mqp->port; | |
2506 | flow->num_of_specs = 1; | |
2507 | flow->size = flow_size; | |
2508 | ib_spec = (struct ib_flow_spec_ib *)(flow + 1); | |
2509 | ib_spec->type = IB_FLOW_SPEC_IB; | |
2510 | ib_spec->size = sizeof(struct ib_flow_spec_ib); | |
2511 | /* Add an empty rule for IB L2 */ | |
2512 | memset(&ib_spec->mask, 0, sizeof(ib_spec->mask)); | |
2513 | ||
2514 | err = __mlx4_ib_create_flow(&mqp->ibqp, flow, | |
2515 | IB_FLOW_DOMAIN_NIC, | |
2516 | MLX4_FS_REGULAR, | |
2517 | &mqp->reg_id); | |
2518 | } else { | |
2519 | err = __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id); | |
2520 | } | |
2521 | kfree(flow); | |
2522 | return err; | |
2523 | } | |
2524 | ||
2525 | static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) | |
2526 | { | |
2527 | struct mlx4_ib_dev *ibdev = ibdev_ptr; | |
2528 | int p; | |
2529 | ||
2530 | ibdev->ib_active = false; | |
2531 | flush_workqueue(wq); | |
2532 | ||
2533 | mlx4_ib_close_sriov(ibdev); | |
2534 | mlx4_ib_mad_cleanup(ibdev); | |
2535 | ib_unregister_device(&ibdev->ib_dev); | |
2536 | if (ibdev->iboe.nb.notifier_call) { | |
2537 | if (unregister_netdevice_notifier(&ibdev->iboe.nb)) | |
2538 | pr_warn("failure unregistering notifier\n"); | |
2539 | ibdev->iboe.nb.notifier_call = NULL; | |
2540 | } | |
2541 | ||
2542 | if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) { | |
2543 | mlx4_qp_release_range(dev, ibdev->steer_qpn_base, | |
2544 | ibdev->steer_qpn_count); | |
2545 | kfree(ibdev->ib_uc_qpns_bitmap); | |
2546 | } | |
2547 | ||
2548 | if (ibdev->iboe.nb_inet.notifier_call) { | |
2549 | if (unregister_inetaddr_notifier(&ibdev->iboe.nb_inet)) | |
2550 | pr_warn("failure unregistering notifier\n"); | |
2551 | ibdev->iboe.nb_inet.notifier_call = NULL; | |
2552 | } | |
2553 | #if IS_ENABLED(CONFIG_IPV6) | |
2554 | if (ibdev->iboe.nb_inet6.notifier_call) { | |
2555 | if (unregister_inet6addr_notifier(&ibdev->iboe.nb_inet6)) | |
2556 | pr_warn("failure unregistering notifier\n"); | |
2557 | ibdev->iboe.nb_inet6.notifier_call = NULL; | |
2558 | } | |
2559 | #endif | |
2560 | ||
2561 | iounmap(ibdev->uar_map); | |
2562 | for (p = 0; p < ibdev->num_ports; ++p) | |
2563 | if (ibdev->counters[p] != -1) | |
2564 | mlx4_counter_free(ibdev->dev, ibdev->counters[p]); | |
2565 | mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB) | |
2566 | mlx4_CLOSE_PORT(dev, p); | |
2567 | ||
2568 | mlx4_ib_free_eqs(dev, ibdev); | |
2569 | ||
2570 | mlx4_uar_free(dev, &ibdev->priv_uar); | |
2571 | mlx4_pd_free(dev, ibdev->priv_pdn); | |
2572 | ib_dealloc_device(&ibdev->ib_dev); | |
2573 | } | |
2574 | ||
2575 | static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init) | |
2576 | { | |
2577 | struct mlx4_ib_demux_work **dm = NULL; | |
2578 | struct mlx4_dev *dev = ibdev->dev; | |
2579 | int i; | |
2580 | unsigned long flags; | |
2581 | struct mlx4_active_ports actv_ports; | |
2582 | unsigned int ports; | |
2583 | unsigned int first_port; | |
2584 | ||
2585 | if (!mlx4_is_master(dev)) | |
2586 | return; | |
2587 | ||
2588 | actv_ports = mlx4_get_active_ports(dev, slave); | |
2589 | ports = bitmap_weight(actv_ports.ports, dev->caps.num_ports); | |
2590 | first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports); | |
2591 | ||
2592 | dm = kcalloc(ports, sizeof(*dm), GFP_ATOMIC); | |
2593 | if (!dm) { | |
2594 | pr_err("failed to allocate memory for tunneling qp update\n"); | |
2595 | goto out; | |
2596 | } | |
2597 | ||
2598 | for (i = 0; i < ports; i++) { | |
2599 | dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC); | |
2600 | if (!dm[i]) { | |
2601 | pr_err("failed to allocate memory for tunneling qp update work struct\n"); | |
2602 | for (i = 0; i < dev->caps.num_ports; i++) { | |
2603 | if (dm[i]) | |
2604 | kfree(dm[i]); | |
2605 | } | |
2606 | goto out; | |
2607 | } | |
2608 | } | |
2609 | /* initialize or tear down tunnel QPs for the slave */ | |
2610 | for (i = 0; i < ports; i++) { | |
2611 | INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work); | |
2612 | dm[i]->port = first_port + i + 1; | |
2613 | dm[i]->slave = slave; | |
2614 | dm[i]->do_init = do_init; | |
2615 | dm[i]->dev = ibdev; | |
2616 | spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags); | |
2617 | if (!ibdev->sriov.is_going_down) | |
2618 | queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work); | |
2619 | spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags); | |
2620 | } | |
2621 | out: | |
2622 | kfree(dm); | |
2623 | return; | |
2624 | } | |
2625 | ||
2626 | static void mlx4_ib_handle_catas_error(struct mlx4_ib_dev *ibdev) | |
2627 | { | |
2628 | struct mlx4_ib_qp *mqp; | |
2629 | unsigned long flags_qp; | |
2630 | unsigned long flags_cq; | |
2631 | struct mlx4_ib_cq *send_mcq, *recv_mcq; | |
2632 | struct list_head cq_notify_list; | |
2633 | struct mlx4_cq *mcq; | |
2634 | unsigned long flags; | |
2635 | ||
2636 | pr_warn("mlx4_ib_handle_catas_error was started\n"); | |
2637 | INIT_LIST_HEAD(&cq_notify_list); | |
2638 | ||
2639 | /* Go over qp list reside on that ibdev, sync with create/destroy qp.*/ | |
2640 | spin_lock_irqsave(&ibdev->reset_flow_resource_lock, flags); | |
2641 | ||
2642 | list_for_each_entry(mqp, &ibdev->qp_list, qps_list) { | |
2643 | spin_lock_irqsave(&mqp->sq.lock, flags_qp); | |
2644 | if (mqp->sq.tail != mqp->sq.head) { | |
2645 | send_mcq = to_mcq(mqp->ibqp.send_cq); | |
2646 | spin_lock_irqsave(&send_mcq->lock, flags_cq); | |
2647 | if (send_mcq->mcq.comp && | |
2648 | mqp->ibqp.send_cq->comp_handler) { | |
2649 | if (!send_mcq->mcq.reset_notify_added) { | |
2650 | send_mcq->mcq.reset_notify_added = 1; | |
2651 | list_add_tail(&send_mcq->mcq.reset_notify, | |
2652 | &cq_notify_list); | |
2653 | } | |
2654 | } | |
2655 | spin_unlock_irqrestore(&send_mcq->lock, flags_cq); | |
2656 | } | |
2657 | spin_unlock_irqrestore(&mqp->sq.lock, flags_qp); | |
2658 | /* Now, handle the QP's receive queue */ | |
2659 | spin_lock_irqsave(&mqp->rq.lock, flags_qp); | |
2660 | /* no handling is needed for SRQ */ | |
2661 | if (!mqp->ibqp.srq) { | |
2662 | if (mqp->rq.tail != mqp->rq.head) { | |
2663 | recv_mcq = to_mcq(mqp->ibqp.recv_cq); | |
2664 | spin_lock_irqsave(&recv_mcq->lock, flags_cq); | |
2665 | if (recv_mcq->mcq.comp && | |
2666 | mqp->ibqp.recv_cq->comp_handler) { | |
2667 | if (!recv_mcq->mcq.reset_notify_added) { | |
2668 | recv_mcq->mcq.reset_notify_added = 1; | |
2669 | list_add_tail(&recv_mcq->mcq.reset_notify, | |
2670 | &cq_notify_list); | |
2671 | } | |
2672 | } | |
2673 | spin_unlock_irqrestore(&recv_mcq->lock, | |
2674 | flags_cq); | |
2675 | } | |
2676 | } | |
2677 | spin_unlock_irqrestore(&mqp->rq.lock, flags_qp); | |
2678 | } | |
2679 | ||
2680 | list_for_each_entry(mcq, &cq_notify_list, reset_notify) { | |
2681 | mcq->comp(mcq); | |
2682 | } | |
2683 | spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags); | |
2684 | pr_warn("mlx4_ib_handle_catas_error ended\n"); | |
2685 | } | |
2686 | ||
2687 | static void handle_bonded_port_state_event(struct work_struct *work) | |
2688 | { | |
2689 | struct ib_event_work *ew = | |
2690 | container_of(work, struct ib_event_work, work); | |
2691 | struct mlx4_ib_dev *ibdev = ew->ib_dev; | |
2692 | enum ib_port_state bonded_port_state = IB_PORT_NOP; | |
2693 | int i; | |
2694 | struct ib_event ibev; | |
2695 | ||
2696 | kfree(ew); | |
2697 | spin_lock_bh(&ibdev->iboe.lock); | |
2698 | for (i = 0; i < MLX4_MAX_PORTS; ++i) { | |
2699 | struct net_device *curr_netdev = ibdev->iboe.netdevs[i]; | |
2700 | enum ib_port_state curr_port_state; | |
2701 | ||
2702 | if (!curr_netdev) | |
2703 | continue; | |
2704 | ||
2705 | curr_port_state = | |
2706 | (netif_running(curr_netdev) && | |
2707 | netif_carrier_ok(curr_netdev)) ? | |
2708 | IB_PORT_ACTIVE : IB_PORT_DOWN; | |
2709 | ||
2710 | bonded_port_state = (bonded_port_state != IB_PORT_ACTIVE) ? | |
2711 | curr_port_state : IB_PORT_ACTIVE; | |
2712 | } | |
2713 | spin_unlock_bh(&ibdev->iboe.lock); | |
2714 | ||
2715 | ibev.device = &ibdev->ib_dev; | |
2716 | ibev.element.port_num = 1; | |
2717 | ibev.event = (bonded_port_state == IB_PORT_ACTIVE) ? | |
2718 | IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; | |
2719 | ||
2720 | ib_dispatch_event(&ibev); | |
2721 | } | |
2722 | ||
2723 | static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, | |
2724 | enum mlx4_dev_event event, unsigned long param) | |
2725 | { | |
2726 | struct ib_event ibev; | |
2727 | struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr); | |
2728 | struct mlx4_eqe *eqe = NULL; | |
2729 | struct ib_event_work *ew; | |
2730 | int p = 0; | |
2731 | ||
2732 | if (mlx4_is_bonded(dev) && | |
2733 | ((event == MLX4_DEV_EVENT_PORT_UP) || | |
2734 | (event == MLX4_DEV_EVENT_PORT_DOWN))) { | |
2735 | ew = kmalloc(sizeof(*ew), GFP_ATOMIC); | |
2736 | if (!ew) | |
2737 | return; | |
2738 | INIT_WORK(&ew->work, handle_bonded_port_state_event); | |
2739 | ew->ib_dev = ibdev; | |
2740 | queue_work(wq, &ew->work); | |
2741 | return; | |
2742 | } | |
2743 | ||
2744 | if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE) | |
2745 | eqe = (struct mlx4_eqe *)param; | |
2746 | else | |
2747 | p = (int) param; | |
2748 | ||
2749 | switch (event) { | |
2750 | case MLX4_DEV_EVENT_PORT_UP: | |
2751 | if (p > ibdev->num_ports) | |
2752 | return; | |
2753 | if (mlx4_is_master(dev) && | |
2754 | rdma_port_get_link_layer(&ibdev->ib_dev, p) == | |
2755 | IB_LINK_LAYER_INFINIBAND) { | |
2756 | mlx4_ib_invalidate_all_guid_record(ibdev, p); | |
2757 | } | |
2758 | ibev.event = IB_EVENT_PORT_ACTIVE; | |
2759 | break; | |
2760 | ||
2761 | case MLX4_DEV_EVENT_PORT_DOWN: | |
2762 | if (p > ibdev->num_ports) | |
2763 | return; | |
2764 | ibev.event = IB_EVENT_PORT_ERR; | |
2765 | break; | |
2766 | ||
2767 | case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: | |
2768 | ibdev->ib_active = false; | |
2769 | ibev.event = IB_EVENT_DEVICE_FATAL; | |
2770 | mlx4_ib_handle_catas_error(ibdev); | |
2771 | break; | |
2772 | ||
2773 | case MLX4_DEV_EVENT_PORT_MGMT_CHANGE: | |
2774 | ew = kmalloc(sizeof *ew, GFP_ATOMIC); | |
2775 | if (!ew) { | |
2776 | pr_err("failed to allocate memory for events work\n"); | |
2777 | break; | |
2778 | } | |
2779 | ||
2780 | INIT_WORK(&ew->work, handle_port_mgmt_change_event); | |
2781 | memcpy(&ew->ib_eqe, eqe, sizeof *eqe); | |
2782 | ew->ib_dev = ibdev; | |
2783 | /* need to queue only for port owner, which uses GEN_EQE */ | |
2784 | if (mlx4_is_master(dev)) | |
2785 | queue_work(wq, &ew->work); | |
2786 | else | |
2787 | handle_port_mgmt_change_event(&ew->work); | |
2788 | return; | |
2789 | ||
2790 | case MLX4_DEV_EVENT_SLAVE_INIT: | |
2791 | /* here, p is the slave id */ | |
2792 | do_slave_init(ibdev, p, 1); | |
2793 | return; | |
2794 | ||
2795 | case MLX4_DEV_EVENT_SLAVE_SHUTDOWN: | |
2796 | /* here, p is the slave id */ | |
2797 | do_slave_init(ibdev, p, 0); | |
2798 | return; | |
2799 | ||
2800 | default: | |
2801 | return; | |
2802 | } | |
2803 | ||
2804 | ibev.device = ibdev_ptr; | |
2805 | ibev.element.port_num = mlx4_is_bonded(ibdev->dev) ? 1 : (u8)p; | |
2806 | ||
2807 | ib_dispatch_event(&ibev); | |
2808 | } | |
2809 | ||
2810 | static struct mlx4_interface mlx4_ib_interface = { | |
2811 | .add = mlx4_ib_add, | |
2812 | .remove = mlx4_ib_remove, | |
2813 | .event = mlx4_ib_event, | |
2814 | .protocol = MLX4_PROT_IB_IPV6, | |
2815 | .flags = MLX4_INTFF_BONDING | |
2816 | }; | |
2817 | ||
2818 | static int __init mlx4_ib_init(void) | |
2819 | { | |
2820 | int err; | |
2821 | ||
2822 | wq = create_singlethread_workqueue("mlx4_ib"); | |
2823 | if (!wq) | |
2824 | return -ENOMEM; | |
2825 | ||
2826 | err = mlx4_ib_mcg_init(); | |
2827 | if (err) | |
2828 | goto clean_wq; | |
2829 | ||
2830 | err = mlx4_register_interface(&mlx4_ib_interface); | |
2831 | if (err) | |
2832 | goto clean_mcg; | |
2833 | ||
2834 | return 0; | |
2835 | ||
2836 | clean_mcg: | |
2837 | mlx4_ib_mcg_destroy(); | |
2838 | ||
2839 | clean_wq: | |
2840 | destroy_workqueue(wq); | |
2841 | return err; | |
2842 | } | |
2843 | ||
2844 | static void __exit mlx4_ib_cleanup(void) | |
2845 | { | |
2846 | mlx4_unregister_interface(&mlx4_ib_interface); | |
2847 | mlx4_ib_mcg_destroy(); | |
2848 | destroy_workqueue(wq); | |
2849 | } | |
2850 | ||
2851 | module_init(mlx4_ib_init); | |
2852 | module_exit(mlx4_ib_cleanup); |