Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. |
Jack Morgenstein | 51a379d | 2008-07-25 10:32:52 -0700 | [diff] [blame] | 3 | * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 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 | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 34 | #include <linux/string.h> |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 35 | #include <linux/etherdevice.h> |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 36 | |
| 37 | #include <linux/mlx4/cmd.h> |
Paul Gortmaker | ee40fa0 | 2011-05-27 16:14:23 -0400 | [diff] [blame] | 38 | #include <linux/export.h> |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 39 | |
| 40 | #include "mlx4.h" |
| 41 | |
Ron Livne | 521e575 | 2008-07-14 23:48:48 -0700 | [diff] [blame] | 42 | #define MGM_QPN_MASK 0x00FFFFFF |
| 43 | #define MGM_BLCK_LB_BIT 30 |
| 44 | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 45 | static const u8 zero_gid[16]; /* automatically initialized to 0 */ |
| 46 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 47 | static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index, |
| 48 | struct mlx4_cmd_mailbox *mailbox) |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 49 | { |
| 50 | return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG, |
Jack Morgenstein | f9baff5 | 2011-12-13 04:10:51 +0000 | [diff] [blame^] | 51 | MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 52 | } |
| 53 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 54 | static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index, |
| 55 | struct mlx4_cmd_mailbox *mailbox) |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 56 | { |
| 57 | return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG, |
Jack Morgenstein | f9baff5 | 2011-12-13 04:10:51 +0000 | [diff] [blame^] | 58 | MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 59 | } |
| 60 | |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 61 | static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 vep_num, u8 port, u8 steer, |
| 62 | struct mlx4_cmd_mailbox *mailbox) |
| 63 | { |
| 64 | u32 in_mod; |
| 65 | |
| 66 | in_mod = (u32) vep_num << 24 | (u32) port << 16 | steer << 1; |
| 67 | return mlx4_cmd(dev, mailbox->dma, in_mod, 0x1, |
Jack Morgenstein | f9baff5 | 2011-12-13 04:10:51 +0000 | [diff] [blame^] | 68 | MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A, |
| 69 | MLX4_CMD_NATIVE); |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 70 | } |
| 71 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 72 | static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, |
| 73 | u16 *hash, u8 op_mod) |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 74 | { |
| 75 | u64 imm; |
| 76 | int err; |
| 77 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 78 | err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod, |
Jack Morgenstein | f9baff5 | 2011-12-13 04:10:51 +0000 | [diff] [blame^] | 79 | MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A, |
| 80 | MLX4_CMD_NATIVE); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 81 | |
| 82 | if (!err) |
| 83 | *hash = imm; |
| 84 | |
| 85 | return err; |
| 86 | } |
| 87 | |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 88 | static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 pf_num, |
| 89 | enum mlx4_steer_type steer, |
| 90 | u32 qpn) |
| 91 | { |
| 92 | struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[pf_num]; |
| 93 | struct mlx4_promisc_qp *pqp; |
| 94 | |
| 95 | list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) { |
| 96 | if (pqp->qpn == qpn) |
| 97 | return pqp; |
| 98 | } |
| 99 | /* not found */ |
| 100 | return NULL; |
| 101 | } |
| 102 | |
| 103 | /* |
| 104 | * Add new entry to steering data structure. |
| 105 | * All promisc QPs should be added as well |
| 106 | */ |
| 107 | static int new_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port, |
| 108 | enum mlx4_steer_type steer, |
| 109 | unsigned int index, u32 qpn) |
| 110 | { |
| 111 | struct mlx4_steer *s_steer; |
| 112 | struct mlx4_cmd_mailbox *mailbox; |
| 113 | struct mlx4_mgm *mgm; |
| 114 | u32 members_count; |
| 115 | struct mlx4_steer_index *new_entry; |
| 116 | struct mlx4_promisc_qp *pqp; |
Mariusz Kozlowski | a14b289 | 2011-04-03 22:04:01 -0700 | [diff] [blame] | 117 | struct mlx4_promisc_qp *dqp = NULL; |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 118 | u32 prot; |
| 119 | int err; |
| 120 | u8 pf_num; |
| 121 | |
| 122 | pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); |
| 123 | s_steer = &mlx4_priv(dev)->steer[pf_num]; |
| 124 | new_entry = kzalloc(sizeof *new_entry, GFP_KERNEL); |
| 125 | if (!new_entry) |
| 126 | return -ENOMEM; |
| 127 | |
| 128 | INIT_LIST_HEAD(&new_entry->duplicates); |
| 129 | new_entry->index = index; |
| 130 | list_add_tail(&new_entry->list, &s_steer->steer_entries[steer]); |
| 131 | |
| 132 | /* If the given qpn is also a promisc qp, |
| 133 | * it should be inserted to duplicates list |
| 134 | */ |
| 135 | pqp = get_promisc_qp(dev, pf_num, steer, qpn); |
| 136 | if (pqp) { |
| 137 | dqp = kmalloc(sizeof *dqp, GFP_KERNEL); |
| 138 | if (!dqp) { |
| 139 | err = -ENOMEM; |
| 140 | goto out_alloc; |
| 141 | } |
| 142 | dqp->qpn = qpn; |
| 143 | list_add_tail(&dqp->list, &new_entry->duplicates); |
| 144 | } |
| 145 | |
| 146 | /* if no promisc qps for this vep, we are done */ |
| 147 | if (list_empty(&s_steer->promisc_qps[steer])) |
| 148 | return 0; |
| 149 | |
| 150 | /* now need to add all the promisc qps to the new |
| 151 | * steering entry, as they should also receive the packets |
| 152 | * destined to this address */ |
| 153 | mailbox = mlx4_alloc_cmd_mailbox(dev); |
| 154 | if (IS_ERR(mailbox)) { |
| 155 | err = -ENOMEM; |
| 156 | goto out_alloc; |
| 157 | } |
| 158 | mgm = mailbox->buf; |
| 159 | |
| 160 | err = mlx4_READ_ENTRY(dev, index, mailbox); |
| 161 | if (err) |
| 162 | goto out_mailbox; |
| 163 | |
| 164 | members_count = be32_to_cpu(mgm->members_count) & 0xffffff; |
| 165 | prot = be32_to_cpu(mgm->members_count) >> 30; |
| 166 | list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) { |
| 167 | /* don't add already existing qpn */ |
| 168 | if (pqp->qpn == qpn) |
| 169 | continue; |
| 170 | if (members_count == MLX4_QP_PER_MGM) { |
| 171 | /* out of space */ |
| 172 | err = -ENOMEM; |
| 173 | goto out_mailbox; |
| 174 | } |
| 175 | |
| 176 | /* add the qpn */ |
| 177 | mgm->qp[members_count++] = cpu_to_be32(pqp->qpn & MGM_QPN_MASK); |
| 178 | } |
| 179 | /* update the qps count and update the entry with all the promisc qps*/ |
| 180 | mgm->members_count = cpu_to_be32(members_count | (prot << 30)); |
| 181 | err = mlx4_WRITE_ENTRY(dev, index, mailbox); |
| 182 | |
| 183 | out_mailbox: |
| 184 | mlx4_free_cmd_mailbox(dev, mailbox); |
| 185 | if (!err) |
| 186 | return 0; |
| 187 | out_alloc: |
| 188 | if (dqp) { |
| 189 | list_del(&dqp->list); |
Mariusz Kozlowski | a14b289 | 2011-04-03 22:04:01 -0700 | [diff] [blame] | 190 | kfree(dqp); |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 191 | } |
| 192 | list_del(&new_entry->list); |
| 193 | kfree(new_entry); |
| 194 | return err; |
| 195 | } |
| 196 | |
| 197 | /* update the data structures with existing steering entry */ |
| 198 | static int existing_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port, |
| 199 | enum mlx4_steer_type steer, |
| 200 | unsigned int index, u32 qpn) |
| 201 | { |
| 202 | struct mlx4_steer *s_steer; |
| 203 | struct mlx4_steer_index *tmp_entry, *entry = NULL; |
| 204 | struct mlx4_promisc_qp *pqp; |
| 205 | struct mlx4_promisc_qp *dqp; |
| 206 | u8 pf_num; |
| 207 | |
| 208 | pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); |
| 209 | s_steer = &mlx4_priv(dev)->steer[pf_num]; |
| 210 | |
| 211 | pqp = get_promisc_qp(dev, pf_num, steer, qpn); |
| 212 | if (!pqp) |
| 213 | return 0; /* nothing to do */ |
| 214 | |
| 215 | list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) { |
| 216 | if (tmp_entry->index == index) { |
| 217 | entry = tmp_entry; |
| 218 | break; |
| 219 | } |
| 220 | } |
| 221 | if (unlikely(!entry)) { |
| 222 | mlx4_warn(dev, "Steering entry at index %x is not registered\n", index); |
| 223 | return -EINVAL; |
| 224 | } |
| 225 | |
| 226 | /* the given qpn is listed as a promisc qpn |
| 227 | * we need to add it as a duplicate to this entry |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 228 | * for future references */ |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 229 | list_for_each_entry(dqp, &entry->duplicates, list) { |
| 230 | if (qpn == dqp->qpn) |
| 231 | return 0; /* qp is already duplicated */ |
| 232 | } |
| 233 | |
| 234 | /* add the qp as a duplicate on this index */ |
| 235 | dqp = kmalloc(sizeof *dqp, GFP_KERNEL); |
| 236 | if (!dqp) |
| 237 | return -ENOMEM; |
| 238 | dqp->qpn = qpn; |
| 239 | list_add_tail(&dqp->list, &entry->duplicates); |
| 240 | |
| 241 | return 0; |
| 242 | } |
| 243 | |
| 244 | /* Check whether a qpn is a duplicate on steering entry |
| 245 | * If so, it should not be removed from mgm */ |
| 246 | static bool check_duplicate_entry(struct mlx4_dev *dev, u8 vep_num, u8 port, |
| 247 | enum mlx4_steer_type steer, |
| 248 | unsigned int index, u32 qpn) |
| 249 | { |
| 250 | struct mlx4_steer *s_steer; |
| 251 | struct mlx4_steer_index *tmp_entry, *entry = NULL; |
| 252 | struct mlx4_promisc_qp *dqp, *tmp_dqp; |
| 253 | u8 pf_num; |
| 254 | |
| 255 | pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); |
| 256 | s_steer = &mlx4_priv(dev)->steer[pf_num]; |
| 257 | |
| 258 | /* if qp is not promisc, it cannot be duplicated */ |
| 259 | if (!get_promisc_qp(dev, pf_num, steer, qpn)) |
| 260 | return false; |
| 261 | |
| 262 | /* The qp is promisc qp so it is a duplicate on this index |
| 263 | * Find the index entry, and remove the duplicate */ |
| 264 | list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) { |
| 265 | if (tmp_entry->index == index) { |
| 266 | entry = tmp_entry; |
| 267 | break; |
| 268 | } |
| 269 | } |
| 270 | if (unlikely(!entry)) { |
| 271 | mlx4_warn(dev, "Steering entry for index %x is not registered\n", index); |
| 272 | return false; |
| 273 | } |
| 274 | list_for_each_entry_safe(dqp, tmp_dqp, &entry->duplicates, list) { |
| 275 | if (dqp->qpn == qpn) { |
| 276 | list_del(&dqp->list); |
| 277 | kfree(dqp); |
| 278 | } |
| 279 | } |
| 280 | return true; |
| 281 | } |
| 282 | |
| 283 | /* I a steering entry contains only promisc QPs, it can be removed. */ |
| 284 | static bool can_remove_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port, |
| 285 | enum mlx4_steer_type steer, |
| 286 | unsigned int index, u32 tqpn) |
| 287 | { |
| 288 | struct mlx4_steer *s_steer; |
| 289 | struct mlx4_cmd_mailbox *mailbox; |
| 290 | struct mlx4_mgm *mgm; |
| 291 | struct mlx4_steer_index *entry = NULL, *tmp_entry; |
| 292 | u32 qpn; |
| 293 | u32 members_count; |
| 294 | bool ret = false; |
| 295 | int i; |
| 296 | u8 pf_num; |
| 297 | |
| 298 | pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); |
| 299 | s_steer = &mlx4_priv(dev)->steer[pf_num]; |
| 300 | |
| 301 | mailbox = mlx4_alloc_cmd_mailbox(dev); |
| 302 | if (IS_ERR(mailbox)) |
| 303 | return false; |
| 304 | mgm = mailbox->buf; |
| 305 | |
| 306 | if (mlx4_READ_ENTRY(dev, index, mailbox)) |
| 307 | goto out; |
| 308 | members_count = be32_to_cpu(mgm->members_count) & 0xffffff; |
| 309 | for (i = 0; i < members_count; i++) { |
| 310 | qpn = be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK; |
| 311 | if (!get_promisc_qp(dev, pf_num, steer, qpn) && qpn != tqpn) { |
| 312 | /* the qp is not promisc, the entry can't be removed */ |
| 313 | goto out; |
| 314 | } |
| 315 | } |
| 316 | /* All the qps currently registered for this entry are promiscuous, |
| 317 | * Checking for duplicates */ |
| 318 | ret = true; |
| 319 | list_for_each_entry_safe(entry, tmp_entry, &s_steer->steer_entries[steer], list) { |
| 320 | if (entry->index == index) { |
| 321 | if (list_empty(&entry->duplicates)) { |
| 322 | list_del(&entry->list); |
| 323 | kfree(entry); |
| 324 | } else { |
| 325 | /* This entry contains duplicates so it shouldn't be removed */ |
| 326 | ret = false; |
| 327 | goto out; |
| 328 | } |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | out: |
| 333 | mlx4_free_cmd_mailbox(dev, mailbox); |
| 334 | return ret; |
| 335 | } |
| 336 | |
| 337 | static int add_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port, |
| 338 | enum mlx4_steer_type steer, u32 qpn) |
| 339 | { |
| 340 | struct mlx4_steer *s_steer; |
| 341 | struct mlx4_cmd_mailbox *mailbox; |
| 342 | struct mlx4_mgm *mgm; |
| 343 | struct mlx4_steer_index *entry; |
| 344 | struct mlx4_promisc_qp *pqp; |
| 345 | struct mlx4_promisc_qp *dqp; |
| 346 | u32 members_count; |
| 347 | u32 prot; |
| 348 | int i; |
| 349 | bool found; |
| 350 | int last_index; |
| 351 | int err; |
| 352 | u8 pf_num; |
| 353 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 354 | pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); |
| 355 | s_steer = &mlx4_priv(dev)->steer[pf_num]; |
| 356 | |
| 357 | mutex_lock(&priv->mcg_table.mutex); |
| 358 | |
| 359 | if (get_promisc_qp(dev, pf_num, steer, qpn)) { |
| 360 | err = 0; /* Noting to do, already exists */ |
| 361 | goto out_mutex; |
| 362 | } |
| 363 | |
| 364 | pqp = kmalloc(sizeof *pqp, GFP_KERNEL); |
| 365 | if (!pqp) { |
| 366 | err = -ENOMEM; |
| 367 | goto out_mutex; |
| 368 | } |
| 369 | pqp->qpn = qpn; |
| 370 | |
| 371 | mailbox = mlx4_alloc_cmd_mailbox(dev); |
| 372 | if (IS_ERR(mailbox)) { |
| 373 | err = -ENOMEM; |
| 374 | goto out_alloc; |
| 375 | } |
| 376 | mgm = mailbox->buf; |
| 377 | |
| 378 | /* the promisc qp needs to be added for each one of the steering |
| 379 | * entries, if it already exists, needs to be added as a duplicate |
| 380 | * for this entry */ |
| 381 | list_for_each_entry(entry, &s_steer->steer_entries[steer], list) { |
| 382 | err = mlx4_READ_ENTRY(dev, entry->index, mailbox); |
| 383 | if (err) |
| 384 | goto out_mailbox; |
| 385 | |
| 386 | members_count = be32_to_cpu(mgm->members_count) & 0xffffff; |
| 387 | prot = be32_to_cpu(mgm->members_count) >> 30; |
| 388 | found = false; |
| 389 | for (i = 0; i < members_count; i++) { |
| 390 | if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn) { |
| 391 | /* Entry already exists, add to duplicates */ |
| 392 | dqp = kmalloc(sizeof *dqp, GFP_KERNEL); |
| 393 | if (!dqp) |
| 394 | goto out_mailbox; |
| 395 | dqp->qpn = qpn; |
| 396 | list_add_tail(&dqp->list, &entry->duplicates); |
| 397 | found = true; |
| 398 | } |
| 399 | } |
| 400 | if (!found) { |
| 401 | /* Need to add the qpn to mgm */ |
| 402 | if (members_count == MLX4_QP_PER_MGM) { |
| 403 | /* entry is full */ |
| 404 | err = -ENOMEM; |
| 405 | goto out_mailbox; |
| 406 | } |
| 407 | mgm->qp[members_count++] = cpu_to_be32(qpn & MGM_QPN_MASK); |
| 408 | mgm->members_count = cpu_to_be32(members_count | (prot << 30)); |
| 409 | err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox); |
| 410 | if (err) |
| 411 | goto out_mailbox; |
| 412 | } |
| 413 | last_index = entry->index; |
| 414 | } |
| 415 | |
| 416 | /* add the new qpn to list of promisc qps */ |
| 417 | list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]); |
| 418 | /* now need to add all the promisc qps to default entry */ |
| 419 | memset(mgm, 0, sizeof *mgm); |
| 420 | members_count = 0; |
| 421 | list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list) |
| 422 | mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK); |
| 423 | mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30); |
| 424 | |
| 425 | err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox); |
| 426 | if (err) |
| 427 | goto out_list; |
| 428 | |
| 429 | mlx4_free_cmd_mailbox(dev, mailbox); |
| 430 | mutex_unlock(&priv->mcg_table.mutex); |
| 431 | return 0; |
| 432 | |
| 433 | out_list: |
| 434 | list_del(&pqp->list); |
| 435 | out_mailbox: |
| 436 | mlx4_free_cmd_mailbox(dev, mailbox); |
| 437 | out_alloc: |
| 438 | kfree(pqp); |
| 439 | out_mutex: |
| 440 | mutex_unlock(&priv->mcg_table.mutex); |
| 441 | return err; |
| 442 | } |
| 443 | |
| 444 | static int remove_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port, |
| 445 | enum mlx4_steer_type steer, u32 qpn) |
| 446 | { |
| 447 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 448 | struct mlx4_steer *s_steer; |
| 449 | struct mlx4_cmd_mailbox *mailbox; |
| 450 | struct mlx4_mgm *mgm; |
| 451 | struct mlx4_steer_index *entry; |
| 452 | struct mlx4_promisc_qp *pqp; |
| 453 | struct mlx4_promisc_qp *dqp; |
| 454 | u32 members_count; |
| 455 | bool found; |
| 456 | bool back_to_list = false; |
| 457 | int loc, i; |
| 458 | int err; |
| 459 | u8 pf_num; |
| 460 | |
| 461 | pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); |
| 462 | s_steer = &mlx4_priv(dev)->steer[pf_num]; |
| 463 | mutex_lock(&priv->mcg_table.mutex); |
| 464 | |
| 465 | pqp = get_promisc_qp(dev, pf_num, steer, qpn); |
| 466 | if (unlikely(!pqp)) { |
| 467 | mlx4_warn(dev, "QP %x is not promiscuous QP\n", qpn); |
| 468 | /* nothing to do */ |
| 469 | err = 0; |
| 470 | goto out_mutex; |
| 471 | } |
| 472 | |
| 473 | /*remove from list of promisc qps */ |
| 474 | list_del(&pqp->list); |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 475 | |
| 476 | /* set the default entry not to include the removed one */ |
| 477 | mailbox = mlx4_alloc_cmd_mailbox(dev); |
| 478 | if (IS_ERR(mailbox)) { |
| 479 | err = -ENOMEM; |
| 480 | back_to_list = true; |
| 481 | goto out_list; |
| 482 | } |
| 483 | mgm = mailbox->buf; |
| 484 | members_count = 0; |
| 485 | list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list) |
| 486 | mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK); |
| 487 | mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30); |
| 488 | |
| 489 | err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox); |
| 490 | if (err) |
| 491 | goto out_mailbox; |
| 492 | |
| 493 | /* remove the qp from all the steering entries*/ |
| 494 | list_for_each_entry(entry, &s_steer->steer_entries[steer], list) { |
| 495 | found = false; |
| 496 | list_for_each_entry(dqp, &entry->duplicates, list) { |
| 497 | if (dqp->qpn == qpn) { |
| 498 | found = true; |
| 499 | break; |
| 500 | } |
| 501 | } |
| 502 | if (found) { |
| 503 | /* a duplicate, no need to change the mgm, |
| 504 | * only update the duplicates list */ |
| 505 | list_del(&dqp->list); |
| 506 | kfree(dqp); |
| 507 | } else { |
| 508 | err = mlx4_READ_ENTRY(dev, entry->index, mailbox); |
| 509 | if (err) |
| 510 | goto out_mailbox; |
| 511 | members_count = be32_to_cpu(mgm->members_count) & 0xffffff; |
| 512 | for (loc = -1, i = 0; i < members_count; ++i) |
| 513 | if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn) |
| 514 | loc = i; |
| 515 | |
| 516 | mgm->members_count = cpu_to_be32(--members_count | |
| 517 | (MLX4_PROT_ETH << 30)); |
| 518 | mgm->qp[loc] = mgm->qp[i - 1]; |
| 519 | mgm->qp[i - 1] = 0; |
| 520 | |
| 521 | err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox); |
| 522 | if (err) |
| 523 | goto out_mailbox; |
| 524 | } |
| 525 | |
| 526 | } |
| 527 | |
| 528 | out_mailbox: |
| 529 | mlx4_free_cmd_mailbox(dev, mailbox); |
| 530 | out_list: |
| 531 | if (back_to_list) |
| 532 | list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]); |
Yevgeny Petrilin | 5302009 | 2011-03-30 23:28:52 +0000 | [diff] [blame] | 533 | else |
| 534 | kfree(pqp); |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 535 | out_mutex: |
| 536 | mutex_unlock(&priv->mcg_table.mutex); |
| 537 | return err; |
| 538 | } |
| 539 | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 540 | /* |
| 541 | * Caller must hold MCG table semaphore. gid and mgm parameters must |
| 542 | * be properly aligned for command interface. |
| 543 | * |
| 544 | * Returns 0 unless a firmware command error occurs. |
| 545 | * |
| 546 | * If GID is found in MGM or MGM is empty, *index = *hash, *prev = -1 |
| 547 | * and *mgm holds MGM entry. |
| 548 | * |
| 549 | * if GID is found in AMGM, *index = index in AMGM, *prev = index of |
| 550 | * previous entry in hash chain and *mgm holds AMGM entry. |
| 551 | * |
| 552 | * If no AMGM exists for given gid, *index = -1, *prev = index of last |
| 553 | * entry in hash chain and *mgm holds end of hash chain. |
| 554 | */ |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 555 | static int find_entry(struct mlx4_dev *dev, u8 port, |
| 556 | u8 *gid, enum mlx4_protocol prot, |
| 557 | enum mlx4_steer_type steer, |
| 558 | struct mlx4_cmd_mailbox *mgm_mailbox, |
| 559 | u16 *hash, int *prev, int *index) |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 560 | { |
| 561 | struct mlx4_cmd_mailbox *mailbox; |
| 562 | struct mlx4_mgm *mgm = mgm_mailbox->buf; |
| 563 | u8 *mgid; |
| 564 | int err; |
Or Gerlitz | ccf8632 | 2011-07-07 19:19:29 +0000 | [diff] [blame] | 565 | u8 op_mod = (prot == MLX4_PROT_ETH) ? |
| 566 | !!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) : 0; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 567 | |
| 568 | mailbox = mlx4_alloc_cmd_mailbox(dev); |
| 569 | if (IS_ERR(mailbox)) |
| 570 | return -ENOMEM; |
| 571 | mgid = mailbox->buf; |
| 572 | |
| 573 | memcpy(mgid, gid, 16); |
| 574 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 575 | err = mlx4_GID_HASH(dev, mailbox, hash, op_mod); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 576 | mlx4_free_cmd_mailbox(dev, mailbox); |
| 577 | if (err) |
| 578 | return err; |
| 579 | |
| 580 | if (0) |
Harvey Harrison | 5b095d989 | 2008-10-29 12:52:50 -0700 | [diff] [blame] | 581 | mlx4_dbg(dev, "Hash for %pI6 is %04x\n", gid, *hash); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 582 | |
| 583 | *index = *hash; |
| 584 | *prev = -1; |
| 585 | |
| 586 | do { |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 587 | err = mlx4_READ_ENTRY(dev, *index, mgm_mailbox); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 588 | if (err) |
| 589 | return err; |
| 590 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 591 | if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) { |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 592 | if (*index != *hash) { |
| 593 | mlx4_err(dev, "Found zero MGID in AMGM.\n"); |
| 594 | err = -EINVAL; |
| 595 | } |
| 596 | return err; |
| 597 | } |
| 598 | |
Aleksey Senin | da995a8 | 2010-12-02 11:44:49 +0000 | [diff] [blame] | 599 | if (!memcmp(mgm->gid, gid, 16) && |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 600 | be32_to_cpu(mgm->members_count) >> 30 == prot) |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 601 | return err; |
| 602 | |
| 603 | *prev = *index; |
| 604 | *index = be32_to_cpu(mgm->next_gid_index) >> 6; |
| 605 | } while (*index); |
| 606 | |
| 607 | *index = -1; |
| 608 | return err; |
| 609 | } |
| 610 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 611 | int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], |
| 612 | int block_mcast_loopback, enum mlx4_protocol prot, |
| 613 | enum mlx4_steer_type steer) |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 614 | { |
| 615 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 616 | struct mlx4_cmd_mailbox *mailbox; |
| 617 | struct mlx4_mgm *mgm; |
| 618 | u32 members_count; |
| 619 | u16 hash; |
| 620 | int index, prev; |
| 621 | int link = 0; |
| 622 | int i; |
| 623 | int err; |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 624 | u8 port = gid[5]; |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 625 | u8 new_entry = 0; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 626 | |
| 627 | mailbox = mlx4_alloc_cmd_mailbox(dev); |
| 628 | if (IS_ERR(mailbox)) |
| 629 | return PTR_ERR(mailbox); |
| 630 | mgm = mailbox->buf; |
| 631 | |
| 632 | mutex_lock(&priv->mcg_table.mutex); |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 633 | err = find_entry(dev, port, gid, prot, steer, |
| 634 | mailbox, &hash, &prev, &index); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 635 | if (err) |
| 636 | goto out; |
| 637 | |
| 638 | if (index != -1) { |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 639 | if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) { |
| 640 | new_entry = 1; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 641 | memcpy(mgm->gid, gid, 16); |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 642 | } |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 643 | } else { |
| 644 | link = 1; |
| 645 | |
| 646 | index = mlx4_bitmap_alloc(&priv->mcg_table.bitmap); |
| 647 | if (index == -1) { |
| 648 | mlx4_err(dev, "No AMGM entries left\n"); |
| 649 | err = -ENOMEM; |
| 650 | goto out; |
| 651 | } |
| 652 | index += dev->caps.num_mgms; |
| 653 | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 654 | memset(mgm, 0, sizeof *mgm); |
| 655 | memcpy(mgm->gid, gid, 16); |
| 656 | } |
| 657 | |
Aleksey Senin | da995a8 | 2010-12-02 11:44:49 +0000 | [diff] [blame] | 658 | members_count = be32_to_cpu(mgm->members_count) & 0xffffff; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 659 | if (members_count == MLX4_QP_PER_MGM) { |
| 660 | mlx4_err(dev, "MGM at index %x is full.\n", index); |
| 661 | err = -ENOMEM; |
| 662 | goto out; |
| 663 | } |
| 664 | |
| 665 | for (i = 0; i < members_count; ++i) |
Ron Livne | 521e575 | 2008-07-14 23:48:48 -0700 | [diff] [blame] | 666 | if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn) { |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 667 | mlx4_dbg(dev, "QP %06x already a member of MGM\n", qp->qpn); |
| 668 | err = 0; |
| 669 | goto out; |
| 670 | } |
| 671 | |
Ron Livne | 521e575 | 2008-07-14 23:48:48 -0700 | [diff] [blame] | 672 | if (block_mcast_loopback) |
| 673 | mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) | |
Ingo Molnar | e6a1762 | 2008-11-25 16:57:59 -0800 | [diff] [blame] | 674 | (1U << MGM_BLCK_LB_BIT)); |
Ron Livne | 521e575 | 2008-07-14 23:48:48 -0700 | [diff] [blame] | 675 | else |
| 676 | mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK); |
| 677 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 678 | mgm->members_count = cpu_to_be32(members_count | (u32) prot << 30); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 679 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 680 | err = mlx4_WRITE_ENTRY(dev, index, mailbox); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 681 | if (err) |
| 682 | goto out; |
| 683 | |
| 684 | if (!link) |
| 685 | goto out; |
| 686 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 687 | err = mlx4_READ_ENTRY(dev, prev, mailbox); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 688 | if (err) |
| 689 | goto out; |
| 690 | |
| 691 | mgm->next_gid_index = cpu_to_be32(index << 6); |
| 692 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 693 | err = mlx4_WRITE_ENTRY(dev, prev, mailbox); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 694 | if (err) |
| 695 | goto out; |
| 696 | |
| 697 | out: |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 698 | if (prot == MLX4_PROT_ETH) { |
| 699 | /* manage the steering entry for promisc mode */ |
| 700 | if (new_entry) |
| 701 | new_steering_entry(dev, 0, port, steer, index, qp->qpn); |
| 702 | else |
| 703 | existing_steering_entry(dev, 0, port, steer, |
| 704 | index, qp->qpn); |
| 705 | } |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 706 | if (err && link && index != -1) { |
| 707 | if (index < dev->caps.num_mgms) |
| 708 | mlx4_warn(dev, "Got AMGM index %d < %d", |
| 709 | index, dev->caps.num_mgms); |
| 710 | else |
| 711 | mlx4_bitmap_free(&priv->mcg_table.bitmap, |
| 712 | index - dev->caps.num_mgms); |
| 713 | } |
| 714 | mutex_unlock(&priv->mcg_table.mutex); |
| 715 | |
| 716 | mlx4_free_cmd_mailbox(dev, mailbox); |
| 717 | return err; |
| 718 | } |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 719 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 720 | int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], |
| 721 | enum mlx4_protocol prot, enum mlx4_steer_type steer) |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 722 | { |
| 723 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 724 | struct mlx4_cmd_mailbox *mailbox; |
| 725 | struct mlx4_mgm *mgm; |
| 726 | u32 members_count; |
| 727 | u16 hash; |
| 728 | int prev, index; |
| 729 | int i, loc; |
| 730 | int err; |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 731 | u8 port = gid[5]; |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 732 | bool removed_entry = false; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 733 | |
| 734 | mailbox = mlx4_alloc_cmd_mailbox(dev); |
| 735 | if (IS_ERR(mailbox)) |
| 736 | return PTR_ERR(mailbox); |
| 737 | mgm = mailbox->buf; |
| 738 | |
| 739 | mutex_lock(&priv->mcg_table.mutex); |
| 740 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 741 | err = find_entry(dev, port, gid, prot, steer, |
| 742 | mailbox, &hash, &prev, &index); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 743 | if (err) |
| 744 | goto out; |
| 745 | |
| 746 | if (index == -1) { |
Harvey Harrison | 5b095d989 | 2008-10-29 12:52:50 -0700 | [diff] [blame] | 747 | mlx4_err(dev, "MGID %pI6 not found\n", gid); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 748 | err = -EINVAL; |
| 749 | goto out; |
| 750 | } |
| 751 | |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 752 | /* if this pq is also a promisc qp, it shouldn't be removed */ |
| 753 | if (prot == MLX4_PROT_ETH && |
| 754 | check_duplicate_entry(dev, 0, port, steer, index, qp->qpn)) |
| 755 | goto out; |
| 756 | |
Aleksey Senin | da995a8 | 2010-12-02 11:44:49 +0000 | [diff] [blame] | 757 | members_count = be32_to_cpu(mgm->members_count) & 0xffffff; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 758 | for (loc = -1, i = 0; i < members_count; ++i) |
Ron Livne | 521e575 | 2008-07-14 23:48:48 -0700 | [diff] [blame] | 759 | if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn) |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 760 | loc = i; |
| 761 | |
| 762 | if (loc == -1) { |
| 763 | mlx4_err(dev, "QP %06x not found in MGM\n", qp->qpn); |
| 764 | err = -EINVAL; |
| 765 | goto out; |
| 766 | } |
| 767 | |
| 768 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 769 | mgm->members_count = cpu_to_be32(--members_count | (u32) prot << 30); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 770 | mgm->qp[loc] = mgm->qp[i - 1]; |
| 771 | mgm->qp[i - 1] = 0; |
| 772 | |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 773 | if (prot == MLX4_PROT_ETH) |
| 774 | removed_entry = can_remove_steering_entry(dev, 0, port, steer, index, qp->qpn); |
| 775 | if (i != 1 && (prot != MLX4_PROT_ETH || !removed_entry)) { |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 776 | err = mlx4_WRITE_ENTRY(dev, index, mailbox); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 777 | goto out; |
Eli Cohen | 4dc51b3 | 2008-04-16 21:09:35 -0700 | [diff] [blame] | 778 | } |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 779 | |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 780 | /* We are going to delete the entry, members count should be 0 */ |
| 781 | mgm->members_count = cpu_to_be32((u32) prot << 30); |
| 782 | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 783 | if (prev == -1) { |
| 784 | /* Remove entry from MGM */ |
| 785 | int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6; |
| 786 | if (amgm_index) { |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 787 | err = mlx4_READ_ENTRY(dev, amgm_index, mailbox); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 788 | if (err) |
| 789 | goto out; |
| 790 | } else |
| 791 | memset(mgm->gid, 0, 16); |
| 792 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 793 | err = mlx4_WRITE_ENTRY(dev, index, mailbox); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 794 | if (err) |
| 795 | goto out; |
| 796 | |
| 797 | if (amgm_index) { |
| 798 | if (amgm_index < dev->caps.num_mgms) |
| 799 | mlx4_warn(dev, "MGM entry %d had AMGM index %d < %d", |
| 800 | index, amgm_index, dev->caps.num_mgms); |
| 801 | else |
| 802 | mlx4_bitmap_free(&priv->mcg_table.bitmap, |
| 803 | amgm_index - dev->caps.num_mgms); |
| 804 | } |
| 805 | } else { |
| 806 | /* Remove entry from AMGM */ |
| 807 | int cur_next_index = be32_to_cpu(mgm->next_gid_index) >> 6; |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 808 | err = mlx4_READ_ENTRY(dev, prev, mailbox); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 809 | if (err) |
| 810 | goto out; |
| 811 | |
| 812 | mgm->next_gid_index = cpu_to_be32(cur_next_index << 6); |
| 813 | |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 814 | err = mlx4_WRITE_ENTRY(dev, prev, mailbox); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 815 | if (err) |
| 816 | goto out; |
| 817 | |
| 818 | if (index < dev->caps.num_mgms) |
| 819 | mlx4_warn(dev, "entry %d had next AMGM index %d < %d", |
| 820 | prev, index, dev->caps.num_mgms); |
| 821 | else |
| 822 | mlx4_bitmap_free(&priv->mcg_table.bitmap, |
| 823 | index - dev->caps.num_mgms); |
| 824 | } |
| 825 | |
| 826 | out: |
| 827 | mutex_unlock(&priv->mcg_table.mutex); |
| 828 | |
| 829 | mlx4_free_cmd_mailbox(dev, mailbox); |
| 830 | return err; |
| 831 | } |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 832 | |
| 833 | |
| 834 | int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], |
| 835 | int block_mcast_loopback, enum mlx4_protocol prot) |
| 836 | { |
| 837 | enum mlx4_steer_type steer; |
| 838 | |
| 839 | steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER; |
| 840 | |
Or Gerlitz | ccf8632 | 2011-07-07 19:19:29 +0000 | [diff] [blame] | 841 | if (prot == MLX4_PROT_ETH && |
| 842 | !(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)) |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 843 | return 0; |
| 844 | |
| 845 | if (prot == MLX4_PROT_ETH) |
| 846 | gid[7] |= (steer << 1); |
| 847 | |
| 848 | return mlx4_qp_attach_common(dev, qp, gid, |
| 849 | block_mcast_loopback, prot, |
| 850 | steer); |
| 851 | } |
| 852 | EXPORT_SYMBOL_GPL(mlx4_multicast_attach); |
| 853 | |
| 854 | int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], |
| 855 | enum mlx4_protocol prot) |
| 856 | { |
| 857 | enum mlx4_steer_type steer; |
| 858 | |
| 859 | steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER; |
| 860 | |
Or Gerlitz | ccf8632 | 2011-07-07 19:19:29 +0000 | [diff] [blame] | 861 | if (prot == MLX4_PROT_ETH && |
| 862 | !(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)) |
Yevgeny Petrilin | 0345584 | 2011-03-22 22:38:17 +0000 | [diff] [blame] | 863 | return 0; |
| 864 | |
| 865 | if (prot == MLX4_PROT_ETH) { |
| 866 | gid[7] |= (steer << 1); |
| 867 | } |
| 868 | |
| 869 | return mlx4_qp_detach_common(dev, qp, gid, prot, steer); |
| 870 | } |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 871 | EXPORT_SYMBOL_GPL(mlx4_multicast_detach); |
| 872 | |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 873 | |
| 874 | int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port) |
| 875 | { |
Or Gerlitz | ccf8632 | 2011-07-07 19:19:29 +0000 | [diff] [blame] | 876 | if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)) |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 877 | return 0; |
| 878 | |
| 879 | |
| 880 | return add_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn); |
| 881 | } |
| 882 | EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_add); |
| 883 | |
| 884 | int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port) |
| 885 | { |
Or Gerlitz | ccf8632 | 2011-07-07 19:19:29 +0000 | [diff] [blame] | 886 | if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)) |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 887 | return 0; |
| 888 | |
| 889 | |
| 890 | return remove_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn); |
| 891 | } |
| 892 | EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_remove); |
| 893 | |
| 894 | int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port) |
| 895 | { |
Or Gerlitz | ccf8632 | 2011-07-07 19:19:29 +0000 | [diff] [blame] | 896 | if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)) |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 897 | return 0; |
| 898 | |
| 899 | |
| 900 | return add_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn); |
| 901 | } |
| 902 | EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_add); |
| 903 | |
| 904 | int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port) |
| 905 | { |
Or Gerlitz | ccf8632 | 2011-07-07 19:19:29 +0000 | [diff] [blame] | 906 | if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)) |
Yevgeny Petrilin | b12d93d | 2011-03-22 22:38:24 +0000 | [diff] [blame] | 907 | return 0; |
| 908 | |
| 909 | return remove_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn); |
| 910 | } |
| 911 | EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_remove); |
| 912 | |
Roland Dreier | 3d73c28 | 2007-10-10 15:43:54 -0700 | [diff] [blame] | 913 | int mlx4_init_mcg_table(struct mlx4_dev *dev) |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 914 | { |
| 915 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 916 | int err; |
| 917 | |
Yevgeny Petrilin | 93fc9e1 | 2008-10-22 10:25:29 -0700 | [diff] [blame] | 918 | err = mlx4_bitmap_init(&priv->mcg_table.bitmap, dev->caps.num_amgms, |
| 919 | dev->caps.num_amgms - 1, 0, 0); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 920 | if (err) |
| 921 | return err; |
| 922 | |
| 923 | mutex_init(&priv->mcg_table.mutex); |
| 924 | |
| 925 | return 0; |
| 926 | } |
| 927 | |
| 928 | void mlx4_cleanup_mcg_table(struct mlx4_dev *dev) |
| 929 | { |
| 930 | mlx4_bitmap_cleanup(&mlx4_priv(dev)->mcg_table.bitmap); |
| 931 | } |