drivers/net/ethernet/mellanox/mlx4/resource_tracker.c

   1 /*
   2  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
   3  * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies.
   4  * All rights reserved.
   5  * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc.  All rights reserved.
   6  *
   7  * This software is available to you under a choice of one of two
   8  * licenses.  You may choose to be licensed under the terms of the GNU
   9  * General Public License (GPL) Version 2, available from the file
  10  * COPYING in the main directory of this source tree, or the
  11  * OpenIB.org BSD license below:
  12  *
  13  *     Redistribution and use in source and binary forms, with or
  14  *     without modification, are permitted provided that the following
  15  *     conditions are met:
  16  *
  17  *      - Redistributions of source code must retain the above
  18  *        copyright notice, this list of conditions and the following
  19  *        disclaimer.
  20  *
  21  *      - Redistributions in binary form must reproduce the above
  22  *        copyright notice, this list of conditions and the following
  23  *        disclaimer in the documentation and/or other materials
  24  *        provided with the distribution.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  30  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  31  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  32  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  33  * SOFTWARE.
  34  */
  35
  36 #include <linux/sched.h>
  37 #include <linux/pci.h>
  38 #include <linux/errno.h>
  39 #include <linux/kernel.h>
  40 #include <linux/io.h>
  41 #include <linux/slab.h>
  42 #include <linux/mlx4/cmd.h>
  43 #include <linux/mlx4/qp.h>
  44 #include <linux/if_ether.h>
  45 #include <linux/etherdevice.h>
  46
  47 #include "mlx4.h"
  48 #include "fw.h"
  49
  50 #define MLX4_MAC_VALID          (1ull << 63)
  51
  52 struct mac_res {
  53         struct list_head list;
  54         u64 mac;
  55         int ref_count;
  56         u8 smac_index;
  57         u8 port;
  58 };
  59
  60 struct vlan_res {
  61         struct list_head list;
  62         u16 vlan;
  63         int ref_count;
  64         int vlan_index;
  65         u8 port;
  66 };
  67
  68 struct res_common {
  69         struct list_head        list;
  70         struct rb_node          node;
  71         u64                     res_id;
  72         int                     owner;
  73         int                     state;
  74         int                     from_state;
  75         int                     to_state;
  76         int                     removing;
  77 };
  78
  79 enum {
  80         RES_ANY_BUSY = 1
  81 };
  82
  83 struct res_gid {
  84         struct list_head        list;
  85         u8                      gid[16];
  86         enum mlx4_protocol      prot;
  87         enum mlx4_steer_type    steer;
  88         u64                     reg_id;
  89 };
  90
  91 enum res_qp_states {
  92         RES_QP_BUSY = RES_ANY_BUSY,
  93
  94         /* QP number was allocated */
  95         RES_QP_RESERVED,
  96
  97         /* ICM memory for QP context was mapped */
  98         RES_QP_MAPPED,
  99
 100         /* QP is in hw ownership */
 101         RES_QP_HW
 102 };
 103
 104 struct res_qp {
 105         struct res_common       com;
 106         struct res_mtt         *mtt;
 107         struct res_cq          *rcq;
 108         struct res_cq          *scq;
 109         struct res_srq         *srq;
 110         struct list_head        mcg_list;
 111         spinlock_t              mcg_spl;
 112         int                     local_qpn;
 113         atomic_t                ref_count;
 114         u32                     qpc_flags;
 115         /* saved qp params before VST enforcement in order to restore on VGT */
 116         u8                      sched_queue;
 117         __be32                  param3;
 118         u8                      vlan_control;
 119         u8                      fvl_rx;
 120         u8                      pri_path_fl;
 121         u8                      vlan_index;
 122         u8                      feup;
 123 };
 124
 125 enum res_mtt_states {
 126         RES_MTT_BUSY = RES_ANY_BUSY,
 127         RES_MTT_ALLOCATED,
 128 };
 129
 130 static inline const char *mtt_states_str(enum res_mtt_states state)
 131 {
 132         switch (state) {
 133         case RES_MTT_BUSY: return "RES_MTT_BUSY";
 134         case RES_MTT_ALLOCATED: return "RES_MTT_ALLOCATED";
 135         default: return "Unknown";
 136         }
 137 }
 138
 139 struct res_mtt {
 140         struct res_common       com;
 141         int                     order;
 142         atomic_t                ref_count;
 143 };
 144
 145 enum res_mpt_states {
 146         RES_MPT_BUSY = RES_ANY_BUSY,
 147         RES_MPT_RESERVED,
 148         RES_MPT_MAPPED,
 149         RES_MPT_HW,
 150 };
 151
 152 struct res_mpt {
 153         struct res_common       com;
 154         struct res_mtt         *mtt;
 155         int                     key;
 156 };
 157
 158 enum res_eq_states {
 159         RES_EQ_BUSY = RES_ANY_BUSY,
 160         RES_EQ_RESERVED,
 161         RES_EQ_HW,
 162 };
 163
 164 struct res_eq {
 165         struct res_common       com;
 166         struct res_mtt         *mtt;
 167 };
 168
 169 enum res_cq_states {
 170         RES_CQ_BUSY = RES_ANY_BUSY,
 171         RES_CQ_ALLOCATED,
 172         RES_CQ_HW,
 173 };
 174
 175 struct res_cq {
 176         struct res_common       com;
 177         struct res_mtt         *mtt;
 178         atomic_t                ref_count;
 179 };
 180
 181 enum res_srq_states {
 182         RES_SRQ_BUSY = RES_ANY_BUSY,
 183         RES_SRQ_ALLOCATED,
 184         RES_SRQ_HW,
 185 };
 186
 187 struct res_srq {
 188         struct res_common       com;
 189         struct res_mtt         *mtt;
 190         struct res_cq          *cq;
 191         atomic_t                ref_count;
 192 };
 193
 194 enum res_counter_states {
 195         RES_COUNTER_BUSY = RES_ANY_BUSY,
 196         RES_COUNTER_ALLOCATED,
 197 };
 198
 199 struct res_counter {
 200         struct res_common       com;
 201         int                     port;
 202 };
 203
 204 enum res_xrcdn_states {
 205         RES_XRCD_BUSY = RES_ANY_BUSY,
 206         RES_XRCD_ALLOCATED,
 207 };
 208
 209 struct res_xrcdn {
 210         struct res_common       com;
 211         int                     port;
 212 };
 213
 214 enum res_fs_rule_states {
 215         RES_FS_RULE_BUSY = RES_ANY_BUSY,
 216         RES_FS_RULE_ALLOCATED,
 217 };
 218
 219 struct res_fs_rule {
 220         struct res_common       com;
 221         int                     qpn;
 222 };
 223
 224 static int mlx4_is_eth(struct mlx4_dev *dev, int port)
 225 {
 226         return dev->caps.port_mask[port] == MLX4_PORT_TYPE_IB ? 0 : 1;
 227 }
 228
 229 static void *res_tracker_lookup(struct rb_root *root, u64 res_id)
 230 {
 231         struct rb_node *node = root->rb_node;
 232
 233         while (node) {
 234                 struct res_common *res = container_of(node, struct res_common,
 235                                                       node);
 236
 237                 if (res_id < res->res_id)
 238                         node = node->rb_left;
 239                 else if (res_id > res->res_id)
 240                         node = node->rb_right;
 241                 else
 242                         return res;
 243         }
 244         return NULL;
 245 }
 246
 247 static int res_tracker_insert(struct rb_root *root, struct res_common *res)
 248 {
 249         struct rb_node **new = &(root->rb_node), *parent = NULL;
 250
 251         /* Figure out where to put new node */
 252         while (*new) {
 253                 struct res_common *this = container_of(*new, struct res_common,
 254                                                        node);
 255
 256                 parent = *new;
 257                 if (res->res_id < this->res_id)
 258                         new = &((*new)->rb_left);
 259                 else if (res->res_id > this->res_id)
 260                         new = &((*new)->rb_right);
 261                 else
 262                         return -EEXIST;
 263         }
 264
 265         /* Add new node and rebalance tree. */
 266         rb_link_node(&res->node, parent, new);
 267         rb_insert_color(&res->node, root);
 268
 269         return 0;
 270 }
 271
 272 enum qp_transition {
 273         QP_TRANS_INIT2RTR,
 274         QP_TRANS_RTR2RTS,
 275         QP_TRANS_RTS2RTS,
 276         QP_TRANS_SQERR2RTS,
 277         QP_TRANS_SQD2SQD,
 278         QP_TRANS_SQD2RTS
 279 };
 280
 281 /* For Debug uses */
 282 static const char *ResourceType(enum mlx4_resource rt)
 283 {
 284         switch (rt) {
 285         case RES_QP: return "RES_QP";
 286         case RES_CQ: return "RES_CQ";
 287         case RES_SRQ: return "RES_SRQ";
 288         case RES_MPT: return "RES_MPT";
 289         case RES_MTT: return "RES_MTT";
 290         case RES_MAC: return  "RES_MAC";
 291         case RES_VLAN: return  "RES_VLAN";
 292         case RES_EQ: return "RES_EQ";
 293         case RES_COUNTER: return "RES_COUNTER";
 294         case RES_FS_RULE: return "RES_FS_RULE";
 295         case RES_XRCD: return "RES_XRCD";
 296         default: return "Unknown resource type !!!";
 297         };
 298 }
 299
 300 static void rem_slave_vlans(struct mlx4_dev *dev, int slave);
 301 static inline int mlx4_grant_resource(struct mlx4_dev *dev, int slave,
 302                                       enum mlx4_resource res_type, int count,
 303                                       int port)
 304 {
 305         struct mlx4_priv *priv = mlx4_priv(dev);
 306         struct resource_allocator *res_alloc =
 307                 &priv->mfunc.master.res_tracker.res_alloc[res_type];
 308         int err = -EINVAL;
 309         int allocated, free, reserved, guaranteed, from_free;
 310
 311         if (slave > dev->num_vfs)
 312                 return -EINVAL;
 313
 314         spin_lock(&res_alloc->alloc_lock);
 315         allocated = (port > 0) ?
 316                 res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] :
 317                 res_alloc->allocated[slave];
 318         free = (port > 0) ? res_alloc->res_port_free[port - 1] :
 319                 res_alloc->res_free;
 320         reserved = (port > 0) ? res_alloc->res_port_rsvd[port - 1] :
 321                 res_alloc->res_reserved;
 322         guaranteed = res_alloc->guaranteed[slave];
 323
 324         if (allocated + count > res_alloc->quota[slave])
 325                 goto out;
 326
 327         if (allocated + count <= guaranteed) {
 328                 err = 0;
 329         } else {
 330                 /* portion may need to be obtained from free area */
 331                 if (guaranteed - allocated > 0)
 332                         from_free = count - (guaranteed - allocated);
 333                 else
 334                         from_free = count;
 335
 336                 if (free - from_free > reserved)
 337                         err = 0;
 338         }
 339
 340         if (!err) {
 341                 /* grant the request */
 342                 if (port > 0) {
 343                         res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] += count;
 344                         res_alloc->res_port_free[port - 1] -= count;
 345                 } else {
 346                         res_alloc->allocated[slave] += count;
 347                         res_alloc->res_free -= count;
 348                 }
 349         }
 350
 351 out:
 352         spin_unlock(&res_alloc->alloc_lock);
 353         return err;
 354 }
 355
 356 static inline void mlx4_release_resource(struct mlx4_dev *dev, int slave,
 357                                     enum mlx4_resource res_type, int count,
 358                                     int port)
 359 {
 360         struct mlx4_priv *priv = mlx4_priv(dev);
 361         struct resource_allocator *res_alloc =
 362                 &priv->mfunc.master.res_tracker.res_alloc[res_type];
 363
 364         if (slave > dev->num_vfs)
 365                 return;
 366
 367         spin_lock(&res_alloc->alloc_lock);
 368         if (port > 0) {
 369                 res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] -= count;
 370                 res_alloc->res_port_free[port - 1] += count;
 371         } else {
 372                 res_alloc->allocated[slave] -= count;
 373                 res_alloc->res_free += count;
 374         }
 375
 376         spin_unlock(&res_alloc->alloc_lock);
 377         return;
 378 }
 379
 380 static inline void initialize_res_quotas(struct mlx4_dev *dev,
 381                                          struct resource_allocator *res_alloc,
 382                                          enum mlx4_resource res_type,
 383                                          int vf, int num_instances)
 384 {
 385         res_alloc->guaranteed[vf] = num_instances / (2 * (dev->num_vfs + 1));
 386         res_alloc->quota[vf] = (num_instances / 2) + res_alloc->guaranteed[vf];
 387         if (vf == mlx4_master_func_num(dev)) {
 388                 res_alloc->res_free = num_instances;
 389                 if (res_type == RES_MTT) {
 390                         /* reserved mtts will be taken out of the PF allocation */
 391                         res_alloc->res_free += dev->caps.reserved_mtts;
 392                         res_alloc->guaranteed[vf] += dev->caps.reserved_mtts;
 393                         res_alloc->quota[vf] += dev->caps.reserved_mtts;
 394                 }
 395         }
 396 }
 397
 398 void mlx4_init_quotas(struct mlx4_dev *dev)
 399 {
 400         struct mlx4_priv *priv = mlx4_priv(dev);
 401         int pf;
 402
 403         /* quotas for VFs are initialized in mlx4_slave_cap */
 404         if (mlx4_is_slave(dev))
 405                 return;
 406
 407         if (!mlx4_is_mfunc(dev)) {
 408                 dev->quotas.qp = dev->caps.num_qps - dev->caps.reserved_qps -
 409                         mlx4_num_reserved_sqps(dev);
 410                 dev->quotas.cq = dev->caps.num_cqs - dev->caps.reserved_cqs;
 411                 dev->quotas.srq = dev->caps.num_srqs - dev->caps.reserved_srqs;
 412                 dev->quotas.mtt = dev->caps.num_mtts - dev->caps.reserved_mtts;
 413                 dev->quotas.mpt = dev->caps.num_mpts - dev->caps.reserved_mrws;
 414                 return;
 415         }
 416
 417         pf = mlx4_master_func_num(dev);
 418         dev->quotas.qp =
 419                 priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[pf];
 420         dev->quotas.cq =
 421                 priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[pf];
 422         dev->quotas.srq =
 423                 priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[pf];
 424         dev->quotas.mtt =
 425                 priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[pf];
 426         dev->quotas.mpt =
 427                 priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[pf];
 428 }
 429 int mlx4_init_resource_tracker(struct mlx4_dev *dev)
 430 {
 431         struct mlx4_priv *priv = mlx4_priv(dev);
 432         int i, j;
 433         int t;
 434
 435         priv->mfunc.master.res_tracker.slave_list =
 436                 kzalloc(dev->num_slaves * sizeof(struct slave_list),
 437                         GFP_KERNEL);
 438         if (!priv->mfunc.master.res_tracker.slave_list)
 439                 return -ENOMEM;
 440
 441         for (i = 0 ; i < dev->num_slaves; i++) {
 442                 for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t)
 443                         INIT_LIST_HEAD(&priv->mfunc.master.res_tracker.
 444                                        slave_list[i].res_list[t]);
 445                 mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
 446         }
 447
 448         mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n",
 449                  dev->num_slaves);
 450         for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++)
 451                 priv->mfunc.master.res_tracker.res_tree[i] = RB_ROOT;
 452
 453         for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
 454                 struct resource_allocator *res_alloc =
 455                         &priv->mfunc.master.res_tracker.res_alloc[i];
 456                 res_alloc->quota = kmalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL);
 457                 res_alloc->guaranteed = kmalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL);
 458                 if (i == RES_MAC || i == RES_VLAN)
 459                         res_alloc->allocated = kzalloc(MLX4_MAX_PORTS *
 460                                                        (dev->num_vfs + 1) * sizeof(int),
 461                                                         GFP_KERNEL);
 462                 else
 463                         res_alloc->allocated = kzalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL);
 464
 465                 if (!res_alloc->quota || !res_alloc->guaranteed ||
 466                     !res_alloc->allocated)
 467                         goto no_mem_err;
 468
 469                 spin_lock_init(&res_alloc->alloc_lock);
 470                 for (t = 0; t < dev->num_vfs + 1; t++) {
 471                         struct mlx4_active_ports actv_ports =
 472                                 mlx4_get_active_ports(dev, t);
 473                         switch (i) {
 474                         case RES_QP:
 475                                 initialize_res_quotas(dev, res_alloc, RES_QP,
 476                                                       t, dev->caps.num_qps -
 477                                                       dev->caps.reserved_qps -
 478                                                       mlx4_num_reserved_sqps(dev));
 479                                 break;
 480                         case RES_CQ:
 481                                 initialize_res_quotas(dev, res_alloc, RES_CQ,
 482                                                       t, dev->caps.num_cqs -
 483                                                       dev->caps.reserved_cqs);
 484                                 break;
 485                         case RES_SRQ:
 486                                 initialize_res_quotas(dev, res_alloc, RES_SRQ,
 487                                                       t, dev->caps.num_srqs -
 488                                                       dev->caps.reserved_srqs);
 489                                 break;
 490                         case RES_MPT:
 491                                 initialize_res_quotas(dev, res_alloc, RES_MPT,
 492                                                       t, dev->caps.num_mpts -
 493                                                       dev->caps.reserved_mrws);
 494                                 break;
 495                         case RES_MTT:
 496                                 initialize_res_quotas(dev, res_alloc, RES_MTT,
 497                                                       t, dev->caps.num_mtts -
 498                                                       dev->caps.reserved_mtts);
 499                                 break;
 500                         case RES_MAC:
 501                                 if (t == mlx4_master_func_num(dev)) {
 502                                         int max_vfs_pport = 0;
 503                                         /* Calculate the max vfs per port for */
 504                                         /* both ports.                        */
 505                                         for (j = 0; j < dev->caps.num_ports;
 506                                              j++) {
 507                                                 struct mlx4_slaves_pport slaves_pport =
 508                                                         mlx4_phys_to_slaves_pport(dev, j + 1);
 509                                                 unsigned current_slaves =
 510                                                         bitmap_weight(slaves_pport.slaves,
 511                                                                       dev->caps.num_ports) - 1;
 512                                                 if (max_vfs_pport < current_slaves)
 513                                                         max_vfs_pport =
 514                                                                 current_slaves;
 515                                         }
 516                                         res_alloc->quota[t] =
 517                                                 MLX4_MAX_MAC_NUM -
 518                                                 2 * max_vfs_pport;
 519                                         res_alloc->guaranteed[t] = 2;
 520                                         for (j = 0; j < MLX4_MAX_PORTS; j++)
 521                                                 res_alloc->res_port_free[j] =
 522                                                         MLX4_MAX_MAC_NUM;
 523                                 } else {
 524                                         res_alloc->quota[t] = MLX4_MAX_MAC_NUM;
 525                                         res_alloc->guaranteed[t] = 2;
 526                                 }
 527                                 break;
 528                         case RES_VLAN:
 529                                 if (t == mlx4_master_func_num(dev)) {
 530                                         res_alloc->quota[t] = MLX4_MAX_VLAN_NUM;
 531                                         res_alloc->guaranteed[t] = MLX4_MAX_VLAN_NUM / 2;
 532                                         for (j = 0; j < MLX4_MAX_PORTS; j++)
 533                                                 res_alloc->res_port_free[j] =
 534                                                         res_alloc->quota[t];
 535                                 } else {
 536                                         res_alloc->quota[t] = MLX4_MAX_VLAN_NUM / 2;
 537                                         res_alloc->guaranteed[t] = 0;
 538                                 }
 539                                 break;
 540                         case RES_COUNTER:
 541                                 res_alloc->quota[t] = dev->caps.max_counters;
 542                                 res_alloc->guaranteed[t] = 0;
 543                                 if (t == mlx4_master_func_num(dev))
 544                                         res_alloc->res_free = res_alloc->quota[t];
 545                                 break;
 546                         default:
 547                                 break;
 548                         }
 549                         if (i == RES_MAC || i == RES_VLAN) {
 550                                 for (j = 0; j < dev->caps.num_ports; j++)
 551                                         if (test_bit(j, actv_ports.ports))
 552                                                 res_alloc->res_port_rsvd[j] +=
 553                                                         res_alloc->guaranteed[t];
 554                         } else {
 555                                 res_alloc->res_reserved += res_alloc->guaranteed[t];
 556                         }
 557                 }
 558         }
 559         spin_lock_init(&priv->mfunc.master.res_tracker.lock);
 560         return 0;
 561
 562 no_mem_err:
 563         for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
 564                 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated);
 565                 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL;
 566                 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed);
 567                 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL;
 568                 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota);
 569                 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL;
 570         }
 571         return -ENOMEM;
 572 }
 573
 574 void mlx4_free_resource_tracker(struct mlx4_dev *dev,
 575                                 enum mlx4_res_tracker_free_type type)
 576 {
 577         struct mlx4_priv *priv = mlx4_priv(dev);
 578         int i;
 579
 580         if (priv->mfunc.master.res_tracker.slave_list) {
 581                 if (type != RES_TR_FREE_STRUCTS_ONLY) {
 582                         for (i = 0; i < dev->num_slaves; i++) {
 583                                 if (type == RES_TR_FREE_ALL ||
 584                                     dev->caps.function != i)
 585                                         mlx4_delete_all_resources_for_slave(dev, i);
 586                         }
 587                         /* free master's vlans */
 588                         i = dev->caps.function;
 589                         mutex_lock(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
 590                         rem_slave_vlans(dev, i);
 591                         mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
 592                 }
 593
 594                 if (type != RES_TR_FREE_SLAVES_ONLY) {
 595                         for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
 596                                 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated);
 597                                 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL;
 598                                 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed);
 599                                 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL;
 600                                 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota);
 601                                 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL;
 602                         }
 603                         kfree(priv->mfunc.master.res_tracker.slave_list);
 604                         priv->mfunc.master.res_tracker.slave_list = NULL;
 605                 }
 606         }
 607 }
 608
 609 static void update_pkey_index(struct mlx4_dev *dev, int slave,
 610                               struct mlx4_cmd_mailbox *inbox)
 611 {
 612         u8 sched = *(u8 *)(inbox->buf + 64);
 613         u8 orig_index = *(u8 *)(inbox->buf + 35);
 614         u8 new_index;
 615         struct mlx4_priv *priv = mlx4_priv(dev);
 616         int port;
 617
 618         port = (sched >> 6 & 1) + 1;
 619
 620         new_index = priv->virt2phys_pkey[slave][port - 1][orig_index];
 621         *(u8 *)(inbox->buf + 35) = new_index;
 622 }
 623
 624 static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox,
 625                        u8 slave)
 626 {
 627         struct mlx4_qp_context  *qp_ctx = inbox->buf + 8;
 628         enum mlx4_qp_optpar     optpar = be32_to_cpu(*(__be32 *) inbox->buf);
 629         u32                     ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
 630         int port;
 631
 632         if (MLX4_QP_ST_UD == ts) {
 633                 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
 634                 if (mlx4_is_eth(dev, port))
 635                         qp_ctx->pri_path.mgid_index =
 636                                 mlx4_get_base_gid_ix(dev, slave, port) | 0x80;
 637                 else
 638                         qp_ctx->pri_path.mgid_index = slave | 0x80;
 639
 640         } else if (MLX4_QP_ST_RC == ts || MLX4_QP_ST_XRC == ts || MLX4_QP_ST_UC == ts) {
 641                 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) {
 642                         port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
 643                         if (mlx4_is_eth(dev, port)) {
 644                                 qp_ctx->pri_path.mgid_index +=
 645                                         mlx4_get_base_gid_ix(dev, slave, port);
 646                                 qp_ctx->pri_path.mgid_index &= 0x7f;
 647                         } else {
 648                                 qp_ctx->pri_path.mgid_index = slave & 0x7F;
 649                         }
 650                 }
 651                 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
 652                         port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1;
 653                         if (mlx4_is_eth(dev, port)) {
 654                                 qp_ctx->alt_path.mgid_index +=
 655                                         mlx4_get_base_gid_ix(dev, slave, port);
 656                                 qp_ctx->alt_path.mgid_index &= 0x7f;
 657                         } else {
 658                                 qp_ctx->alt_path.mgid_index = slave & 0x7F;
 659                         }
 660                 }
 661         }
 662 }
 663
 664 static int update_vport_qp_param(struct mlx4_dev *dev,
 665                                  struct mlx4_cmd_mailbox *inbox,
 666                                  u8 slave, u32 qpn)
 667 {
 668         struct mlx4_qp_context  *qpc = inbox->buf + 8;
 669         struct mlx4_vport_oper_state *vp_oper;
 670         struct mlx4_priv *priv;
 671         int port;
 672
 673         port = (qpc->pri_path.sched_queue & 0x40) ? 2 : 1;
 674         priv = mlx4_priv(dev);
 675         vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
 676
 677         if (MLX4_VGT != vp_oper->state.default_vlan) {
 678                 /* the reserved QPs (special, proxy, tunnel)
 679                  * do not operate over vlans
 680                  */
 681                 if (mlx4_is_qp_reserved(dev, qpn))
 682                         return 0;
 683
 684                 /* force strip vlan by clear vsd */
 685                 qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN);
 686
 687                 if (vp_oper->state.link_state == IFLA_VF_LINK_STATE_DISABLE &&
 688                     dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) {
 689                         qpc->pri_path.vlan_control =
 690                                 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
 691                                 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED |
 692                                 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED |
 693                                 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
 694                                 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED |
 695                                 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
 696                 } else if (0 != vp_oper->state.default_vlan) {
 697                         qpc->pri_path.vlan_control =
 698                                 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
 699                                 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
 700                                 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
 701                 } else { /* priority tagged */
 702                         qpc->pri_path.vlan_control =
 703                                 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
 704                                 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
 705                 }
 706
 707                 qpc->pri_path.fvl_rx |= MLX4_FVL_RX_FORCE_ETH_VLAN;
 708                 qpc->pri_path.vlan_index = vp_oper->vlan_idx;
 709                 qpc->pri_path.fl |= MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
 710                 qpc->pri_path.feup |= MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
 711                 qpc->pri_path.sched_queue &= 0xC7;
 712                 qpc->pri_path.sched_queue |= (vp_oper->state.default_qos) << 3;
 713         }
 714         if (vp_oper->state.spoofchk) {
 715                 qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC;
 716                 qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx;
 717         }
 718         return 0;
 719 }
 720
 721 static int mpt_mask(struct mlx4_dev *dev)
 722 {
 723         return dev->caps.num_mpts - 1;
 724 }
 725
 726 static void *find_res(struct mlx4_dev *dev, u64 res_id,
 727                       enum mlx4_resource type)
 728 {
 729         struct mlx4_priv *priv = mlx4_priv(dev);
 730
 731         return res_tracker_lookup(&priv->mfunc.master.res_tracker.res_tree[type],
 732                                   res_id);
 733 }
 734
 735 static int get_res(struct mlx4_dev *dev, int slave, u64 res_id,
 736                    enum mlx4_resource type,
 737                    void *res)
 738 {
 739         struct res_common *r;
 740         int err = 0;
 741
 742         spin_lock_irq(mlx4_tlock(dev));
 743         r = find_res(dev, res_id, type);
 744         if (!r) {
 745                 err = -ENONET;
 746                 goto exit;
 747         }
 748
 749         if (r->state == RES_ANY_BUSY) {
 750                 err = -EBUSY;
 751                 goto exit;
 752         }
 753
 754         if (r->owner != slave) {
 755                 err = -EPERM;
 756                 goto exit;
 757         }
 758
 759         r->from_state = r->state;
 760         r->state = RES_ANY_BUSY;
 761
 762         if (res)
 763                 *((struct res_common **)res) = r;
 764
 765 exit:
 766         spin_unlock_irq(mlx4_tlock(dev));
 767         return err;
 768 }
 769
 770 int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev,
 771                                     enum mlx4_resource type,
 772                                     u64 res_id, int *slave)
 773 {
 774
 775         struct res_common *r;
 776         int err = -ENOENT;
 777         int id = res_id;
 778
 779         if (type == RES_QP)
 780                 id &= 0x7fffff;
 781         spin_lock(mlx4_tlock(dev));
 782
 783         r = find_res(dev, id, type);
 784         if (r) {
 785                 *slave = r->owner;
 786                 err = 0;
 787         }
 788         spin_unlock(mlx4_tlock(dev));
 789
 790         return err;
 791 }
 792
 793 static void put_res(struct mlx4_dev *dev, int slave, u64 res_id,
 794                     enum mlx4_resource type)
 795 {
 796         struct res_common *r;
 797
 798         spin_lock_irq(mlx4_tlock(dev));
 799         r = find_res(dev, res_id, type);
 800         if (r)
 801                 r->state = r->from_state;
 802         spin_unlock_irq(mlx4_tlock(dev));
 803 }
 804
 805 static struct res_common *alloc_qp_tr(int id)
 806 {
 807         struct res_qp *ret;
 808
 809         ret = kzalloc(sizeof *ret, GFP_KERNEL);
 810         if (!ret)
 811                 return NULL;
 812
 813         ret->com.res_id = id;
 814         ret->com.state = RES_QP_RESERVED;
 815         ret->local_qpn = id;
 816         INIT_LIST_HEAD(&ret->mcg_list);
 817         spin_lock_init(&ret->mcg_spl);
 818         atomic_set(&ret->ref_count, 0);
 819
 820         return &ret->com;
 821 }
 822
 823 static struct res_common *alloc_mtt_tr(int id, int order)
 824 {
 825         struct res_mtt *ret;
 826
 827         ret = kzalloc(sizeof *ret, GFP_KERNEL);
 828         if (!ret)
 829                 return NULL;
 830
 831         ret->com.res_id = id;
 832         ret->order = order;
 833         ret->com.state = RES_MTT_ALLOCATED;
 834         atomic_set(&ret->ref_count, 0);
 835
 836         return &ret->com;
 837 }
 838
 839 static struct res_common *alloc_mpt_tr(int id, int key)
 840 {
 841         struct res_mpt *ret;
 842
 843         ret = kzalloc(sizeof *ret, GFP_KERNEL);
 844         if (!ret)
 845                 return NULL;
 846
 847         ret->com.res_id = id;
 848         ret->com.state = RES_MPT_RESERVED;
 849         ret->key = key;
 850
 851         return &ret->com;
 852 }
 853
 854 static struct res_common *alloc_eq_tr(int id)
 855 {
 856         struct res_eq *ret;
 857
 858         ret = kzalloc(sizeof *ret, GFP_KERNEL);
 859         if (!ret)
 860                 return NULL;
 861
 862         ret->com.res_id = id;
 863         ret->com.state = RES_EQ_RESERVED;
 864
 865         return &ret->com;
 866 }
 867
 868 static struct res_common *alloc_cq_tr(int id)
 869 {
 870         struct res_cq *ret;
 871
 872         ret = kzalloc(sizeof *ret, GFP_KERNEL);
 873         if (!ret)
 874                 return NULL;
 875
 876         ret->com.res_id = id;
 877         ret->com.state = RES_CQ_ALLOCATED;
 878         atomic_set(&ret->ref_count, 0);
 879
 880         return &ret->com;
 881 }
 882
 883 static struct res_common *alloc_srq_tr(int id)
 884 {
 885         struct res_srq *ret;
 886
 887         ret = kzalloc(sizeof *ret, GFP_KERNEL);
 888         if (!ret)
 889                 return NULL;
 890
 891         ret->com.res_id = id;
 892         ret->com.state = RES_SRQ_ALLOCATED;
 893         atomic_set(&ret->ref_count, 0);
 894
 895         return &ret->com;
 896 }
 897
 898 static struct res_common *alloc_counter_tr(int id)
 899 {
 900         struct res_counter *ret;
 901
 902         ret = kzalloc(sizeof *ret, GFP_KERNEL);
 903         if (!ret)
 904                 return NULL;
 905
 906         ret->com.res_id = id;
 907         ret->com.state = RES_COUNTER_ALLOCATED;
 908
 909         return &ret->com;
 910 }
 911
 912 static struct res_common *alloc_xrcdn_tr(int id)
 913 {
 914         struct res_xrcdn *ret;
 915
 916         ret = kzalloc(sizeof *ret, GFP_KERNEL);
 917         if (!ret)
 918                 return NULL;
 919
 920         ret->com.res_id = id;
 921         ret->com.state = RES_XRCD_ALLOCATED;
 922
 923         return &ret->com;
 924 }
 925
 926 static struct res_common *alloc_fs_rule_tr(u64 id, int qpn)
 927 {
 928         struct res_fs_rule *ret;
 929
 930         ret = kzalloc(sizeof *ret, GFP_KERNEL);
 931         if (!ret)
 932                 return NULL;
 933
 934         ret->com.res_id = id;
 935         ret->com.state = RES_FS_RULE_ALLOCATED;
 936         ret->qpn = qpn;
 937         return &ret->com;
 938 }
 939
 940 static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave,
 941                                    int extra)
 942 {
 943         struct res_common *ret;
 944
 945         switch (type) {
 946         case RES_QP:
 947                 ret = alloc_qp_tr(id);
 948                 break;
 949         case RES_MPT:
 950                 ret = alloc_mpt_tr(id, extra);
 951                 break;
 952         case RES_MTT:
 953                 ret = alloc_mtt_tr(id, extra);
 954                 break;
 955         case RES_EQ:
 956                 ret = alloc_eq_tr(id);
 957                 break;
 958         case RES_CQ:
 959                 ret = alloc_cq_tr(id);
 960                 break;
 961         case RES_SRQ:
 962                 ret = alloc_srq_tr(id);
 963                 break;
 964         case RES_MAC:
 965                 printk(KERN_ERR "implementation missing\n");
 966                 return NULL;
 967         case RES_COUNTER:
 968                 ret = alloc_counter_tr(id);
 969                 break;
 970         case RES_XRCD:
 971                 ret = alloc_xrcdn_tr(id);
 972                 break;
 973         case RES_FS_RULE:
 974                 ret = alloc_fs_rule_tr(id, extra);
 975                 break;
 976         default:
 977                 return NULL;
 978         }
 979         if (ret)
 980                 ret->owner = slave;
 981
 982         return ret;
 983 }
 984
 985 static int add_res_range(struct mlx4_dev *dev, int slave, u64 base, int count,
 986                          enum mlx4_resource type, int extra)
 987 {
 988         int i;
 989         int err;
 990         struct mlx4_priv *priv = mlx4_priv(dev);
 991         struct res_common **res_arr;
 992         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
 993         struct rb_root *root = &tracker->res_tree[type];
 994
 995         res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL);
 996         if (!res_arr)
 997                 return -ENOMEM;
 998
 999         for (i = 0; i < count; ++i) {
1000                 res_arr[i] = alloc_tr(base + i, type, slave, extra);
1001                 if (!res_arr[i]) {
1002                         for (--i; i >= 0; --i)
1003                                 kfree(res_arr[i]);
1004
1005                         kfree(res_arr);
1006                         return -ENOMEM;
1007                 }
1008         }
1009
1010         spin_lock_irq(mlx4_tlock(dev));
1011         for (i = 0; i < count; ++i) {
1012                 if (find_res(dev, base + i, type)) {
1013                         err = -EEXIST;
1014                         goto undo;
1015                 }
1016                 err = res_tracker_insert(root, res_arr[i]);
1017                 if (err)
1018                         goto undo;
1019                 list_add_tail(&res_arr[i]->list,
1020                               &tracker->slave_list[slave].res_list[type]);
1021         }
1022         spin_unlock_irq(mlx4_tlock(dev));
1023         kfree(res_arr);
1024
1025         return 0;
1026
1027 undo:
1028         for (--i; i >= base; --i)
1029                 rb_erase(&res_arr[i]->node, root);
1030
1031         spin_unlock_irq(mlx4_tlock(dev));
1032
1033         for (i = 0; i < count; ++i)
1034                 kfree(res_arr[i]);
1035
1036         kfree(res_arr);
1037
1038         return err;
1039 }
1040
1041 static int remove_qp_ok(struct res_qp *res)
1042 {
1043         if (res->com.state == RES_QP_BUSY || atomic_read(&res->ref_count) ||
1044             !list_empty(&res->mcg_list)) {
1045                 pr_err("resource tracker: fail to remove qp, state %d, ref_count %d\n",
1046                        res->com.state, atomic_read(&res->ref_count));
1047                 return -EBUSY;
1048         } else if (res->com.state != RES_QP_RESERVED) {
1049                 return -EPERM;
1050         }
1051
1052         return 0;
1053 }
1054
1055 static int remove_mtt_ok(struct res_mtt *res, int order)
1056 {
1057         if (res->com.state == RES_MTT_BUSY ||
1058             atomic_read(&res->ref_count)) {
1059                 printk(KERN_DEBUG "%s-%d: state %s, ref_count %d\n",
1060                        __func__, __LINE__,
1061                        mtt_states_str(res->com.state),
1062                        atomic_read(&res->ref_count));
1063                 return -EBUSY;
1064         } else if (res->com.state != RES_MTT_ALLOCATED)
1065                 return -EPERM;
1066         else if (res->order != order)
1067                 return -EINVAL;
1068
1069         return 0;
1070 }
1071
1072 static int remove_mpt_ok(struct res_mpt *res)
1073 {
1074         if (res->com.state == RES_MPT_BUSY)
1075                 return -EBUSY;
1076         else if (res->com.state != RES_MPT_RESERVED)
1077                 return -EPERM;
1078
1079         return 0;
1080 }
1081
1082 static int remove_eq_ok(struct res_eq *res)
1083 {
1084         if (res->com.state == RES_MPT_BUSY)
1085                 return -EBUSY;
1086         else if (res->com.state != RES_MPT_RESERVED)
1087                 return -EPERM;
1088
1089         return 0;
1090 }
1091
1092 static int remove_counter_ok(struct res_counter *res)
1093 {
1094         if (res->com.state == RES_COUNTER_BUSY)
1095                 return -EBUSY;
1096         else if (res->com.state != RES_COUNTER_ALLOCATED)
1097                 return -EPERM;
1098
1099         return 0;
1100 }
1101
1102 static int remove_xrcdn_ok(struct res_xrcdn *res)
1103 {
1104         if (res->com.state == RES_XRCD_BUSY)
1105                 return -EBUSY;
1106         else if (res->com.state != RES_XRCD_ALLOCATED)
1107                 return -EPERM;
1108
1109         return 0;
1110 }
1111
1112 static int remove_fs_rule_ok(struct res_fs_rule *res)
1113 {
1114         if (res->com.state == RES_FS_RULE_BUSY)
1115                 return -EBUSY;
1116         else if (res->com.state != RES_FS_RULE_ALLOCATED)
1117                 return -EPERM;
1118
1119         return 0;
1120 }
1121
1122 static int remove_cq_ok(struct res_cq *res)
1123 {
1124         if (res->com.state == RES_CQ_BUSY)
1125                 return -EBUSY;
1126         else if (res->com.state != RES_CQ_ALLOCATED)
1127                 return -EPERM;
1128
1129         return 0;
1130 }
1131
1132 static int remove_srq_ok(struct res_srq *res)
1133 {
1134         if (res->com.state == RES_SRQ_BUSY)
1135                 return -EBUSY;
1136         else if (res->com.state != RES_SRQ_ALLOCATED)
1137                 return -EPERM;
1138
1139         return 0;
1140 }
1141
1142 static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra)
1143 {
1144         switch (type) {
1145         case RES_QP:
1146                 return remove_qp_ok((struct res_qp *)res);
1147         case RES_CQ:
1148                 return remove_cq_ok((struct res_cq *)res);
1149         case RES_SRQ:
1150                 return remove_srq_ok((struct res_srq *)res);
1151         case RES_MPT:
1152                 return remove_mpt_ok((struct res_mpt *)res);
1153         case RES_MTT:
1154                 return remove_mtt_ok((struct res_mtt *)res, extra);
1155         case RES_MAC:
1156                 return -ENOSYS;
1157         case RES_EQ:
1158                 return remove_eq_ok((struct res_eq *)res);
1159         case RES_COUNTER:
1160                 return remove_counter_ok((struct res_counter *)res);
1161         case RES_XRCD:
1162                 return remove_xrcdn_ok((struct res_xrcdn *)res);
1163         case RES_FS_RULE:
1164                 return remove_fs_rule_ok((struct res_fs_rule *)res);
1165         default:
1166                 return -EINVAL;
1167         }
1168 }
1169
1170 static int rem_res_range(struct mlx4_dev *dev, int slave, u64 base, int count,
1171                          enum mlx4_resource type, int extra)
1172 {
1173         u64 i;
1174         int err;
1175         struct mlx4_priv *priv = mlx4_priv(dev);
1176         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1177         struct res_common *r;
1178
1179         spin_lock_irq(mlx4_tlock(dev));
1180         for (i = base; i < base + count; ++i) {
1181                 r = res_tracker_lookup(&tracker->res_tree[type], i);
1182                 if (!r) {
1183                         err = -ENOENT;
1184                         goto out;
1185                 }
1186                 if (r->owner != slave) {
1187                         err = -EPERM;
1188                         goto out;
1189                 }
1190                 err = remove_ok(r, type, extra);
1191                 if (err)
1192                         goto out;
1193         }
1194
1195         for (i = base; i < base + count; ++i) {
1196                 r = res_tracker_lookup(&tracker->res_tree[type], i);
1197                 rb_erase(&r->node, &tracker->res_tree[type]);
1198                 list_del(&r->list);
1199                 kfree(r);
1200         }
1201         err = 0;
1202
1203 out:
1204         spin_unlock_irq(mlx4_tlock(dev));
1205
1206         return err;
1207 }
1208
1209 static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn,
1210                                 enum res_qp_states state, struct res_qp **qp,
1211                                 int alloc)
1212 {
1213         struct mlx4_priv *priv = mlx4_priv(dev);
1214         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1215         struct res_qp *r;
1216         int err = 0;
1217
1218         spin_lock_irq(mlx4_tlock(dev));
1219         r = res_tracker_lookup(&tracker->res_tree[RES_QP], qpn);
1220         if (!r)
1221                 err = -ENOENT;
1222         else if (r->com.owner != slave)
1223                 err = -EPERM;
1224         else {
1225                 switch (state) {
1226                 case RES_QP_BUSY:
1227                         mlx4_dbg(dev, "%s: failed RES_QP, 0x%llx\n",
1228                                  __func__, r->com.res_id);
1229                         err = -EBUSY;
1230                         break;
1231
1232                 case RES_QP_RESERVED:
1233                         if (r->com.state == RES_QP_MAPPED && !alloc)
1234                                 break;
1235
1236                         mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", r->com.res_id);
1237                         err = -EINVAL;
1238                         break;
1239
1240                 case RES_QP_MAPPED:
1241                         if ((r->com.state == RES_QP_RESERVED && alloc) ||
1242                             r->com.state == RES_QP_HW)
1243                                 break;
1244                         else {
1245                                 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n",
1246                                           r->com.res_id);
1247                                 err = -EINVAL;
1248                         }
1249
1250                         break;
1251
1252                 case RES_QP_HW:
1253                         if (r->com.state != RES_QP_MAPPED)
1254                                 err = -EINVAL;
1255                         break;
1256                 default:
1257                         err = -EINVAL;
1258                 }
1259
1260                 if (!err) {
1261                         r->com.from_state = r->com.state;
1262                         r->com.to_state = state;
1263                         r->com.state = RES_QP_BUSY;
1264                         if (qp)
1265                                 *qp = r;
1266                 }
1267         }
1268
1269         spin_unlock_irq(mlx4_tlock(dev));
1270
1271         return err;
1272 }
1273
1274 static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1275                                 enum res_mpt_states state, struct res_mpt **mpt)
1276 {
1277         struct mlx4_priv *priv = mlx4_priv(dev);
1278         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1279         struct res_mpt *r;
1280         int err = 0;
1281
1282         spin_lock_irq(mlx4_tlock(dev));
1283         r = res_tracker_lookup(&tracker->res_tree[RES_MPT], index);
1284         if (!r)
1285                 err = -ENOENT;
1286         else if (r->com.owner != slave)
1287                 err = -EPERM;
1288         else {
1289                 switch (state) {
1290                 case RES_MPT_BUSY:
1291                         err = -EINVAL;
1292                         break;
1293
1294                 case RES_MPT_RESERVED:
1295                         if (r->com.state != RES_MPT_MAPPED)
1296                                 err = -EINVAL;
1297                         break;
1298
1299                 case RES_MPT_MAPPED:
1300                         if (r->com.state != RES_MPT_RESERVED &&
1301                             r->com.state != RES_MPT_HW)
1302                                 err = -EINVAL;
1303                         break;
1304
1305                 case RES_MPT_HW:
1306                         if (r->com.state != RES_MPT_MAPPED)
1307                                 err = -EINVAL;
1308                         break;
1309                 default:
1310                         err = -EINVAL;
1311                 }
1312
1313                 if (!err) {
1314                         r->com.from_state = r->com.state;
1315                         r->com.to_state = state;
1316                         r->com.state = RES_MPT_BUSY;
1317                         if (mpt)
1318                                 *mpt = r;
1319                 }
1320         }
1321
1322         spin_unlock_irq(mlx4_tlock(dev));
1323
1324         return err;
1325 }
1326
1327 static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1328                                 enum res_eq_states state, struct res_eq **eq)
1329 {
1330         struct mlx4_priv *priv = mlx4_priv(dev);
1331         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1332         struct res_eq *r;
1333         int err = 0;
1334
1335         spin_lock_irq(mlx4_tlock(dev));
1336         r = res_tracker_lookup(&tracker->res_tree[RES_EQ], index);
1337         if (!r)
1338                 err = -ENOENT;
1339         else if (r->com.owner != slave)
1340                 err = -EPERM;
1341         else {
1342                 switch (state) {
1343                 case RES_EQ_BUSY:
1344                         err = -EINVAL;
1345                         break;
1346
1347                 case RES_EQ_RESERVED:
1348                         if (r->com.state != RES_EQ_HW)
1349                                 err = -EINVAL;
1350                         break;
1351
1352                 case RES_EQ_HW:
1353                         if (r->com.state != RES_EQ_RESERVED)
1354                                 err = -EINVAL;
1355                         break;
1356
1357                 default:
1358                         err = -EINVAL;
1359                 }
1360
1361                 if (!err) {
1362                         r->com.from_state = r->com.state;
1363                         r->com.to_state = state;
1364                         r->com.state = RES_EQ_BUSY;
1365                         if (eq)
1366                                 *eq = r;
1367                 }
1368         }
1369
1370         spin_unlock_irq(mlx4_tlock(dev));
1371
1372         return err;
1373 }
1374
1375 static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn,
1376                                 enum res_cq_states state, struct res_cq **cq)
1377 {
1378         struct mlx4_priv *priv = mlx4_priv(dev);
1379         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1380         struct res_cq *r;
1381         int err;
1382
1383         spin_lock_irq(mlx4_tlock(dev));
1384         r = res_tracker_lookup(&tracker->res_tree[RES_CQ], cqn);
1385         if (!r) {
1386                 err = -ENOENT;
1387         } else if (r->com.owner != slave) {
1388                 err = -EPERM;
1389         } else if (state == RES_CQ_ALLOCATED) {
1390                 if (r->com.state != RES_CQ_HW)
1391                         err = -EINVAL;
1392                 else if (atomic_read(&r->ref_count))
1393                         err = -EBUSY;
1394                 else
1395                         err = 0;
1396         } else if (state != RES_CQ_HW || r->com.state != RES_CQ_ALLOCATED) {
1397                 err = -EINVAL;
1398         } else {
1399                 err = 0;
1400         }
1401
1402         if (!err) {
1403                 r->com.from_state = r->com.state;
1404                 r->com.to_state = state;
1405                 r->com.state = RES_CQ_BUSY;
1406                 if (cq)
1407                         *cq = r;
1408         }
1409
1410         spin_unlock_irq(mlx4_tlock(dev));
1411
1412         return err;
1413 }
1414
1415 static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1416                                  enum res_srq_states state, struct res_srq **srq)
1417 {
1418         struct mlx4_priv *priv = mlx4_priv(dev);
1419         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1420         struct res_srq *r;
1421         int err = 0;
1422
1423         spin_lock_irq(mlx4_tlock(dev));
1424         r = res_tracker_lookup(&tracker->res_tree[RES_SRQ], index);
1425         if (!r) {
1426                 err = -ENOENT;
1427         } else if (r->com.owner != slave) {
1428                 err = -EPERM;
1429         } else if (state == RES_SRQ_ALLOCATED) {
1430                 if (r->com.state != RES_SRQ_HW)
1431                         err = -EINVAL;
1432                 else if (atomic_read(&r->ref_count))
1433                         err = -EBUSY;
1434         } else if (state != RES_SRQ_HW || r->com.state != RES_SRQ_ALLOCATED) {
1435                 err = -EINVAL;
1436         }
1437
1438         if (!err) {
1439                 r->com.from_state = r->com.state;
1440                 r->com.to_state = state;
1441                 r->com.state = RES_SRQ_BUSY;
1442                 if (srq)
1443                         *srq = r;
1444         }
1445
1446         spin_unlock_irq(mlx4_tlock(dev));
1447
1448         return err;
1449 }
1450
1451 static void res_abort_move(struct mlx4_dev *dev, int slave,
1452                            enum mlx4_resource type, int id)
1453 {
1454         struct mlx4_priv *priv = mlx4_priv(dev);
1455         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1456         struct res_common *r;
1457
1458         spin_lock_irq(mlx4_tlock(dev));
1459         r = res_tracker_lookup(&tracker->res_tree[type], id);
1460         if (r && (r->owner == slave))
1461                 r->state = r->from_state;
1462         spin_unlock_irq(mlx4_tlock(dev));
1463 }
1464
1465 static void res_end_move(struct mlx4_dev *dev, int slave,
1466                          enum mlx4_resource type, int id)
1467 {
1468         struct mlx4_priv *priv = mlx4_priv(dev);
1469         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1470         struct res_common *r;
1471
1472         spin_lock_irq(mlx4_tlock(dev));
1473         r = res_tracker_lookup(&tracker->res_tree[type], id);
1474         if (r && (r->owner == slave))
1475                 r->state = r->to_state;
1476         spin_unlock_irq(mlx4_tlock(dev));
1477 }
1478
1479 static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn)
1480 {
1481         return mlx4_is_qp_reserved(dev, qpn) &&
1482                 (mlx4_is_master(dev) || mlx4_is_guest_proxy(dev, slave, qpn));
1483 }
1484
1485 static int fw_reserved(struct mlx4_dev *dev, int qpn)
1486 {
1487         return qpn < dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
1488 }
1489
1490 static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1491                         u64 in_param, u64 *out_param)
1492 {
1493         int err;
1494         int count;
1495         int align;
1496         int base;
1497         int qpn;
1498
1499         switch (op) {
1500         case RES_OP_RESERVE:
1501                 count = get_param_l(&in_param);
1502                 align = get_param_h(&in_param);
1503                 err = mlx4_grant_resource(dev, slave, RES_QP, count, 0);
1504                 if (err)
1505                         return err;
1506
1507                 err = __mlx4_qp_reserve_range(dev, count, align, &base);
1508                 if (err) {
1509                         mlx4_release_resource(dev, slave, RES_QP, count, 0);
1510                         return err;
1511                 }
1512
1513                 err = add_res_range(dev, slave, base, count, RES_QP, 0);
1514                 if (err) {
1515                         mlx4_release_resource(dev, slave, RES_QP, count, 0);
1516                         __mlx4_qp_release_range(dev, base, count);
1517                         return err;
1518                 }
1519                 set_param_l(out_param, base);
1520                 break;
1521         case RES_OP_MAP_ICM:
1522                 qpn = get_param_l(&in_param) & 0x7fffff;
1523                 if (valid_reserved(dev, slave, qpn)) {
1524                         err = add_res_range(dev, slave, qpn, 1, RES_QP, 0);
1525                         if (err)
1526                                 return err;
1527                 }
1528
1529                 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED,
1530                                            NULL, 1);
1531                 if (err)
1532                         return err;
1533
1534                 if (!fw_reserved(dev, qpn)) {
1535                         err = __mlx4_qp_alloc_icm(dev, qpn);
1536                         if (err) {
1537                                 res_abort_move(dev, slave, RES_QP, qpn);
1538                                 return err;
1539                         }
1540                 }
1541
1542                 res_end_move(dev, slave, RES_QP, qpn);
1543                 break;
1544
1545         default:
1546                 err = -EINVAL;
1547                 break;
1548         }
1549         return err;
1550 }
1551
1552 static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1553                          u64 in_param, u64 *out_param)
1554 {
1555         int err = -EINVAL;
1556         int base;
1557         int order;
1558
1559         if (op != RES_OP_RESERVE_AND_MAP)
1560                 return err;
1561
1562         order = get_param_l(&in_param);
1563
1564         err = mlx4_grant_resource(dev, slave, RES_MTT, 1 << order, 0);
1565         if (err)
1566                 return err;
1567
1568         base = __mlx4_alloc_mtt_range(dev, order);
1569         if (base == -1) {
1570                 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
1571                 return -ENOMEM;
1572         }
1573
1574         err = add_res_range(dev, slave, base, 1, RES_MTT, order);
1575         if (err) {
1576                 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
1577                 __mlx4_free_mtt_range(dev, base, order);
1578         } else {
1579                 set_param_l(out_param, base);
1580         }
1581
1582         return err;
1583 }
1584
1585 static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1586                          u64 in_param, u64 *out_param)
1587 {
1588         int err = -EINVAL;
1589         int index;
1590         int id;
1591         struct res_mpt *mpt;
1592
1593         switch (op) {
1594         case RES_OP_RESERVE:
1595                 err = mlx4_grant_resource(dev, slave, RES_MPT, 1, 0);
1596                 if (err)
1597                         break;
1598
1599                 index = __mlx4_mpt_reserve(dev);
1600                 if (index == -1) {
1601                         mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
1602                         break;
1603                 }
1604                 id = index & mpt_mask(dev);
1605
1606                 err = add_res_range(dev, slave, id, 1, RES_MPT, index);
1607                 if (err) {
1608                         mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
1609                         __mlx4_mpt_release(dev, index);
1610                         break;
1611                 }
1612                 set_param_l(out_param, index);
1613                 break;
1614         case RES_OP_MAP_ICM:
1615                 index = get_param_l(&in_param);
1616                 id = index & mpt_mask(dev);
1617                 err = mr_res_start_move_to(dev, slave, id,
1618                                            RES_MPT_MAPPED, &mpt);
1619                 if (err)
1620                         return err;
1621
1622                 err = __mlx4_mpt_alloc_icm(dev, mpt->key);
1623                 if (err) {
1624                         res_abort_move(dev, slave, RES_MPT, id);
1625                         return err;
1626                 }
1627
1628                 res_end_move(dev, slave, RES_MPT, id);
1629                 break;
1630         }
1631         return err;
1632 }
1633
1634 static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1635                         u64 in_param, u64 *out_param)
1636 {
1637         int cqn;
1638         int err;
1639
1640         switch (op) {
1641         case RES_OP_RESERVE_AND_MAP:
1642                 err = mlx4_grant_resource(dev, slave, RES_CQ, 1, 0);
1643                 if (err)
1644                         break;
1645
1646                 err = __mlx4_cq_alloc_icm(dev, &cqn);
1647                 if (err) {
1648                         mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
1649                         break;
1650                 }
1651
1652                 err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0);
1653                 if (err) {
1654                         mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
1655                         __mlx4_cq_free_icm(dev, cqn);
1656                         break;
1657                 }
1658
1659                 set_param_l(out_param, cqn);
1660                 break;
1661
1662         default:
1663                 err = -EINVAL;
1664         }
1665
1666         return err;
1667 }
1668
1669 static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1670                          u64 in_param, u64 *out_param)
1671 {
1672         int srqn;
1673         int err;
1674
1675         switch (op) {
1676         case RES_OP_RESERVE_AND_MAP:
1677                 err = mlx4_grant_resource(dev, slave, RES_SRQ, 1, 0);
1678                 if (err)
1679                         break;
1680
1681                 err = __mlx4_srq_alloc_icm(dev, &srqn);
1682                 if (err) {
1683                         mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
1684                         break;
1685                 }
1686
1687                 err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0);
1688                 if (err) {
1689                         mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
1690                         __mlx4_srq_free_icm(dev, srqn);
1691                         break;
1692                 }
1693
1694                 set_param_l(out_param, srqn);
1695                 break;
1696
1697         default:
1698                 err = -EINVAL;
1699         }
1700
1701         return err;
1702 }
1703
1704 static int mac_find_smac_ix_in_slave(struct mlx4_dev *dev, int slave, int port,
1705                                      u8 smac_index, u64 *mac)
1706 {
1707         struct mlx4_priv *priv = mlx4_priv(dev);
1708         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1709         struct list_head *mac_list =
1710                 &tracker->slave_list[slave].res_list[RES_MAC];
1711         struct mac_res *res, *tmp;
1712
1713         list_for_each_entry_safe(res, tmp, mac_list, list) {
1714                 if (res->smac_index == smac_index && res->port == (u8) port) {
1715                         *mac = res->mac;
1716                         return 0;
1717                 }
1718         }
1719         return -ENOENT;
1720 }
1721
1722 static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port, u8 smac_index)
1723 {
1724         struct mlx4_priv *priv = mlx4_priv(dev);
1725         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1726         struct list_head *mac_list =
1727                 &tracker->slave_list[slave].res_list[RES_MAC];
1728         struct mac_res *res, *tmp;
1729
1730         list_for_each_entry_safe(res, tmp, mac_list, list) {
1731                 if (res->mac == mac && res->port == (u8) port) {
1732                         /* mac found. update ref count */
1733                         ++res->ref_count;
1734                         return 0;
1735                 }
1736         }
1737
1738         if (mlx4_grant_resource(dev, slave, RES_MAC, 1, port))
1739                 return -EINVAL;
1740         res = kzalloc(sizeof *res, GFP_KERNEL);
1741         if (!res) {
1742                 mlx4_release_resource(dev, slave, RES_MAC, 1, port);
1743                 return -ENOMEM;
1744         }
1745         res->mac = mac;
1746         res->port = (u8) port;
1747         res->smac_index = smac_index;
1748         res->ref_count = 1;
1749         list_add_tail(&res->list,
1750                       &tracker->slave_list[slave].res_list[RES_MAC]);
1751         return 0;
1752 }
1753
1754 static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac,
1755                                int port)
1756 {
1757         struct mlx4_priv *priv = mlx4_priv(dev);
1758         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1759         struct list_head *mac_list =
1760                 &tracker->slave_list[slave].res_list[RES_MAC];
1761         struct mac_res *res, *tmp;
1762
1763         list_for_each_entry_safe(res, tmp, mac_list, list) {
1764                 if (res->mac == mac && res->port == (u8) port) {
1765                         if (!--res->ref_count) {
1766                                 list_del(&res->list);
1767                                 mlx4_release_resource(dev, slave, RES_MAC, 1, port);
1768                                 kfree(res);
1769                         }
1770                         break;
1771                 }
1772         }
1773 }
1774
1775 static void rem_slave_macs(struct mlx4_dev *dev, int slave)
1776 {
1777         struct mlx4_priv *priv = mlx4_priv(dev);
1778         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1779         struct list_head *mac_list =
1780                 &tracker->slave_list[slave].res_list[RES_MAC];
1781         struct mac_res *res, *tmp;
1782         int i;
1783
1784         list_for_each_entry_safe(res, tmp, mac_list, list) {
1785                 list_del(&res->list);
1786                 /* dereference the mac the num times the slave referenced it */
1787                 for (i = 0; i < res->ref_count; i++)
1788                         __mlx4_unregister_mac(dev, res->port, res->mac);
1789                 mlx4_release_resource(dev, slave, RES_MAC, 1, res->port);
1790                 kfree(res);
1791         }
1792 }
1793
1794 static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1795                          u64 in_param, u64 *out_param, int in_port)
1796 {
1797         int err = -EINVAL;
1798         int port;
1799         u64 mac;
1800         u8 smac_index;
1801
1802         if (op != RES_OP_RESERVE_AND_MAP)
1803                 return err;
1804
1805         port = !in_port ? get_param_l(out_param) : in_port;
1806         port = mlx4_slave_convert_port(
1807                         dev, slave, port);
1808
1809         if (port < 0)
1810                 return -EINVAL;
1811         mac = in_param;
1812
1813         err = __mlx4_register_mac(dev, port, mac);
1814         if (err >= 0) {
1815                 smac_index = err;
1816                 set_param_l(out_param, err);
1817                 err = 0;
1818         }
1819
1820         if (!err) {
1821                 err = mac_add_to_slave(dev, slave, mac, port, smac_index);
1822                 if (err)
1823                         __mlx4_unregister_mac(dev, port, mac);
1824         }
1825         return err;
1826 }
1827
1828 static int vlan_add_to_slave(struct mlx4_dev *dev, int slave, u16 vlan,
1829                              int port, int vlan_index)
1830 {
1831         struct mlx4_priv *priv = mlx4_priv(dev);
1832         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1833         struct list_head *vlan_list =
1834                 &tracker->slave_list[slave].res_list[RES_VLAN];
1835         struct vlan_res *res, *tmp;
1836
1837         list_for_each_entry_safe(res, tmp, vlan_list, list) {
1838                 if (res->vlan == vlan && res->port == (u8) port) {
1839                         /* vlan found. update ref count */
1840                         ++res->ref_count;
1841                         return 0;
1842                 }
1843         }
1844
1845         if (mlx4_grant_resource(dev, slave, RES_VLAN, 1, port))
1846                 return -EINVAL;
1847         res = kzalloc(sizeof(*res), GFP_KERNEL);
1848         if (!res) {
1849                 mlx4_release_resource(dev, slave, RES_VLAN, 1, port);
1850                 return -ENOMEM;
1851         }
1852         res->vlan = vlan;
1853         res->port = (u8) port;
1854         res->vlan_index = vlan_index;
1855         res->ref_count = 1;
1856         list_add_tail(&res->list,
1857                       &tracker->slave_list[slave].res_list[RES_VLAN]);
1858         return 0;
1859 }
1860
1861
1862 static void vlan_del_from_slave(struct mlx4_dev *dev, int slave, u16 vlan,
1863                                 int port)
1864 {
1865         struct mlx4_priv *priv = mlx4_priv(dev);
1866         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1867         struct list_head *vlan_list =
1868                 &tracker->slave_list[slave].res_list[RES_VLAN];
1869         struct vlan_res *res, *tmp;
1870
1871         list_for_each_entry_safe(res, tmp, vlan_list, list) {
1872                 if (res->vlan == vlan && res->port == (u8) port) {
1873                         if (!--res->ref_count) {
1874                                 list_del(&res->list);
1875                                 mlx4_release_resource(dev, slave, RES_VLAN,
1876                                                       1, port);
1877                                 kfree(res);
1878                         }
1879                         break;
1880                 }
1881         }
1882 }
1883
1884 static void rem_slave_vlans(struct mlx4_dev *dev, int slave)
1885 {
1886         struct mlx4_priv *priv = mlx4_priv(dev);
1887         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1888         struct list_head *vlan_list =
1889                 &tracker->slave_list[slave].res_list[RES_VLAN];
1890         struct vlan_res *res, *tmp;
1891         int i;
1892
1893         list_for_each_entry_safe(res, tmp, vlan_list, list) {
1894                 list_del(&res->list);
1895                 /* dereference the vlan the num times the slave referenced it */
1896                 for (i = 0; i < res->ref_count; i++)
1897                         __mlx4_unregister_vlan(dev, res->port, res->vlan);
1898                 mlx4_release_resource(dev, slave, RES_VLAN, 1, res->port);
1899                 kfree(res);
1900         }
1901 }
1902
1903 static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1904                           u64 in_param, u64 *out_param, int in_port)
1905 {
1906         struct mlx4_priv *priv = mlx4_priv(dev);
1907         struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
1908         int err;
1909         u16 vlan;
1910         int vlan_index;
1911         int port;
1912
1913         port = !in_port ? get_param_l(out_param) : in_port;
1914
1915         if (!port || op != RES_OP_RESERVE_AND_MAP)
1916                 return -EINVAL;
1917
1918         port = mlx4_slave_convert_port(
1919                         dev, slave, port);
1920
1921         if (port < 0)
1922                 return -EINVAL;
1923         /* upstream kernels had NOP for reg/unreg vlan. Continue this. */
1924         if (!in_port && port > 0 && port <= dev->caps.num_ports) {
1925                 slave_state[slave].old_vlan_api = true;
1926                 return 0;
1927         }
1928
1929         vlan = (u16) in_param;
1930
1931         err = __mlx4_register_vlan(dev, port, vlan, &vlan_index);
1932         if (!err) {
1933                 set_param_l(out_param, (u32) vlan_index);
1934                 err = vlan_add_to_slave(dev, slave, vlan, port, vlan_index);
1935                 if (err)
1936                         __mlx4_unregister_vlan(dev, port, vlan);
1937         }
1938         return err;
1939 }
1940
1941 static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1942                              u64 in_param, u64 *out_param)
1943 {
1944         u32 index;
1945         int err;
1946
1947         if (op != RES_OP_RESERVE)
1948                 return -EINVAL;
1949
1950         err = mlx4_grant_resource(dev, slave, RES_COUNTER, 1, 0);
1951         if (err)
1952                 return err;
1953
1954         err = __mlx4_counter_alloc(dev, &index);
1955         if (err) {
1956                 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
1957                 return err;
1958         }
1959
1960         err = add_res_range(dev, slave, index, 1, RES_COUNTER, 0);
1961         if (err) {
1962                 __mlx4_counter_free(dev, index);
1963                 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
1964         } else {
1965                 set_param_l(out_param, index);
1966         }
1967
1968         return err;
1969 }
1970
1971 static int xrcdn_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1972                            u64 in_param, u64 *out_param)
1973 {
1974         u32 xrcdn;
1975         int err;
1976
1977         if (op != RES_OP_RESERVE)
1978                 return -EINVAL;
1979
1980         err = __mlx4_xrcd_alloc(dev, &xrcdn);
1981         if (err)
1982                 return err;
1983
1984         err = add_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0);
1985         if (err)
1986                 __mlx4_xrcd_free(dev, xrcdn);
1987         else
1988                 set_param_l(out_param, xrcdn);
1989
1990         return err;
1991 }
1992
1993 int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave,
1994                            struct mlx4_vhcr *vhcr,
1995                            struct mlx4_cmd_mailbox *inbox,
1996                            struct mlx4_cmd_mailbox *outbox,
1997                            struct mlx4_cmd_info *cmd)
1998 {
1999         int err;
2000         int alop = vhcr->op_modifier;
2001
2002         switch (vhcr->in_modifier & 0xFF) {
2003         case RES_QP:
2004                 err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop,
2005                                    vhcr->in_param, &vhcr->out_param);
2006                 break;
2007
2008         case RES_MTT:
2009                 err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop,
2010                                     vhcr->in_param, &vhcr->out_param);
2011                 break;
2012
2013         case RES_MPT:
2014                 err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop,
2015                                     vhcr->in_param, &vhcr->out_param);
2016                 break;
2017
2018         case RES_CQ:
2019                 err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop,
2020                                    vhcr->in_param, &vhcr->out_param);
2021                 break;
2022
2023         case RES_SRQ:
2024                 err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop,
2025                                     vhcr->in_param, &vhcr->out_param);
2026                 break;
2027
2028         case RES_MAC:
2029                 err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop,
2030                                     vhcr->in_param, &vhcr->out_param,
2031                                     (vhcr->in_modifier >> 8) & 0xFF);
2032                 break;
2033
2034         case RES_VLAN:
2035                 err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop,
2036                                      vhcr->in_param, &vhcr->out_param,
2037                                      (vhcr->in_modifier >> 8) & 0xFF);
2038                 break;
2039
2040         case RES_COUNTER:
2041                 err = counter_alloc_res(dev, slave, vhcr->op_modifier, alop,
2042                                         vhcr->in_param, &vhcr->out_param);
2043                 break;
2044
2045         case RES_XRCD:
2046                 err = xrcdn_alloc_res(dev, slave, vhcr->op_modifier, alop,
2047                                       vhcr->in_param, &vhcr->out_param);
2048                 break;
2049
2050         default:
2051                 err = -EINVAL;
2052                 break;
2053         }
2054
2055         return err;
2056 }
2057
2058 static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2059                        u64 in_param)
2060 {
2061         int err;
2062         int count;
2063         int base;
2064         int qpn;
2065
2066         switch (op) {
2067         case RES_OP_RESERVE:
2068                 base = get_param_l(&in_param) & 0x7fffff;
2069                 count = get_param_h(&in_param);
2070                 err = rem_res_range(dev, slave, base, count, RES_QP, 0);
2071                 if (err)
2072                         break;
2073                 mlx4_release_resource(dev, slave, RES_QP, count, 0);
2074                 __mlx4_qp_release_range(dev, base, count);
2075                 break;
2076         case RES_OP_MAP_ICM:
2077                 qpn = get_param_l(&in_param) & 0x7fffff;
2078                 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED,
2079                                            NULL, 0);
2080                 if (err)
2081                         return err;
2082
2083                 if (!fw_reserved(dev, qpn))
2084                         __mlx4_qp_free_icm(dev, qpn);
2085
2086                 res_end_move(dev, slave, RES_QP, qpn);
2087
2088                 if (valid_reserved(dev, slave, qpn))
2089                         err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0);
2090                 break;
2091         default:
2092                 err = -EINVAL;
2093                 break;
2094         }
2095         return err;
2096 }
2097
2098 static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2099                         u64 in_param, u64 *out_param)
2100 {
2101         int err = -EINVAL;
2102         int base;
2103         int order;
2104
2105         if (op != RES_OP_RESERVE_AND_MAP)
2106                 return err;
2107
2108         base = get_param_l(&in_param);
2109         order = get_param_h(&in_param);
2110         err = rem_res_range(dev, slave, base, 1, RES_MTT, order);
2111         if (!err) {
2112                 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
2113                 __mlx4_free_mtt_range(dev, base, order);
2114         }
2115         return err;
2116 }
2117
2118 static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2119                         u64 in_param)
2120 {
2121         int err = -EINVAL;
2122         int index;
2123         int id;
2124         struct res_mpt *mpt;
2125
2126         switch (op) {
2127         case RES_OP_RESERVE:
2128                 index = get_param_l(&in_param);
2129                 id = index & mpt_mask(dev);
2130                 err = get_res(dev, slave, id, RES_MPT, &mpt);
2131                 if (err)
2132                         break;
2133                 index = mpt->key;
2134                 put_res(dev, slave, id, RES_MPT);
2135
2136                 err = rem_res_range(dev, slave, id, 1, RES_MPT, 0);
2137                 if (err)
2138                         break;
2139                 mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
2140                 __mlx4_mpt_release(dev, index);
2141                 break;
2142         case RES_OP_MAP_ICM:
2143                         index = get_param_l(&in_param);
2144                         id = index & mpt_mask(dev);
2145                         err = mr_res_start_move_to(dev, slave, id,
2146                                                    RES_MPT_RESERVED, &mpt);
2147                         if (err)
2148                                 return err;
2149
2150                         __mlx4_mpt_free_icm(dev, mpt->key);
2151                         res_end_move(dev, slave, RES_MPT, id);
2152                         return err;
2153                 break;
2154         default:
2155                 err = -EINVAL;
2156                 break;
2157         }
2158         return err;
2159 }
2160
2161 static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2162                        u64 in_param, u64 *out_param)
2163 {
2164         int cqn;
2165         int err;
2166
2167         switch (op) {
2168         case RES_OP_RESERVE_AND_MAP:
2169                 cqn = get_param_l(&in_param);
2170                 err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0);
2171                 if (err)
2172                         break;
2173
2174                 mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
2175                 __mlx4_cq_free_icm(dev, cqn);
2176                 break;
2177
2178         default:
2179                 err = -EINVAL;
2180                 break;
2181         }
2182
2183         return err;
2184 }
2185
2186 static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2187                         u64 in_param, u64 *out_param)
2188 {
2189         int srqn;
2190         int err;
2191
2192         switch (op) {
2193         case RES_OP_RESERVE_AND_MAP:
2194                 srqn = get_param_l(&in_param);
2195                 err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0);
2196                 if (err)
2197                         break;
2198
2199                 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
2200                 __mlx4_srq_free_icm(dev, srqn);
2201                 break;
2202
2203         default:
2204                 err = -EINVAL;
2205                 break;
2206         }
2207
2208         return err;
2209 }
2210
2211 static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2212                             u64 in_param, u64 *out_param, int in_port)
2213 {
2214         int port;
2215         int err = 0;
2216
2217         switch (op) {
2218         case RES_OP_RESERVE_AND_MAP:
2219                 port = !in_port ? get_param_l(out_param) : in_port;
2220                 port = mlx4_slave_convert_port(
2221                                 dev, slave, port);
2222
2223                 if (port < 0)
2224                         return -EINVAL;
2225                 mac_del_from_slave(dev, slave, in_param, port);
2226                 __mlx4_unregister_mac(dev, port, in_param);
2227                 break;
2228         default:
2229                 err = -EINVAL;
2230                 break;
2231         }
2232
2233         return err;
2234
2235 }
2236
2237 static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2238                             u64 in_param, u64 *out_param, int port)
2239 {
2240         struct mlx4_priv *priv = mlx4_priv(dev);
2241         struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
2242         int err = 0;
2243
2244         port = mlx4_slave_convert_port(
2245                         dev, slave, port);
2246
2247         if (port < 0)
2248                 return -EINVAL;
2249         switch (op) {
2250         case RES_OP_RESERVE_AND_MAP:
2251                 if (slave_state[slave].old_vlan_api)
2252                         return 0;
2253                 if (!port)
2254                         return -EINVAL;
2255                 vlan_del_from_slave(dev, slave, in_param, port);
2256                 __mlx4_unregister_vlan(dev, port, in_param);
2257                 break;
2258         default:
2259                 err = -EINVAL;
2260                 break;
2261         }
2262
2263         return err;
2264 }
2265
2266 static int counter_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2267                             u64 in_param, u64 *out_param)
2268 {
2269         int index;
2270         int err;
2271
2272         if (op != RES_OP_RESERVE)
2273                 return -EINVAL;
2274
2275         index = get_param_l(&in_param);
2276         err = rem_res_range(dev, slave, index, 1, RES_COUNTER, 0);
2277         if (err)
2278                 return err;
2279
2280         __mlx4_counter_free(dev, index);
2281         mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
2282
2283         return err;
2284 }
2285
2286 static int xrcdn_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2287                           u64 in_param, u64 *out_param)
2288 {
2289         int xrcdn;
2290         int err;
2291
2292         if (op != RES_OP_RESERVE)
2293                 return -EINVAL;
2294
2295         xrcdn = get_param_l(&in_param);
2296         err = rem_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0);
2297         if (err)
2298                 return err;
2299
2300         __mlx4_xrcd_free(dev, xrcdn);
2301
2302         return err;
2303 }
2304
2305 int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave,
2306                           struct mlx4_vhcr *vhcr,
2307                           struct mlx4_cmd_mailbox *inbox,
2308                           struct mlx4_cmd_mailbox *outbox,
2309                           struct mlx4_cmd_info *cmd)
2310 {
2311         int err = -EINVAL;
2312         int alop = vhcr->op_modifier;
2313
2314         switch (vhcr->in_modifier & 0xFF) {
2315         case RES_QP:
2316                 err = qp_free_res(dev, slave, vhcr->op_modifier, alop,
2317                                   vhcr->in_param);
2318                 break;
2319
2320         case RES_MTT:
2321                 err = mtt_free_res(dev, slave, vhcr->op_modifier, alop,
2322                                    vhcr->in_param, &vhcr->out_param);
2323                 break;
2324
2325         case RES_MPT:
2326                 err = mpt_free_res(dev, slave, vhcr->op_modifier, alop,
2327                                    vhcr->in_param);
2328                 break;
2329
2330         case RES_CQ:
2331                 err = cq_free_res(dev, slave, vhcr->op_modifier, alop,
2332                                   vhcr->in_param, &vhcr->out_param);
2333                 break;
2334
2335         case RES_SRQ:
2336                 err = srq_free_res(dev, slave, vhcr->op_modifier, alop,
2337                                    vhcr->in_param, &vhcr->out_param);
2338                 break;
2339
2340         case RES_MAC:
2341                 err = mac_free_res(dev, slave, vhcr->op_modifier, alop,
2342                                    vhcr->in_param, &vhcr->out_param,
2343                                    (vhcr->in_modifier >> 8) & 0xFF);
2344                 break;
2345
2346         case RES_VLAN:
2347                 err = vlan_free_res(dev, slave, vhcr->op_modifier, alop,
2348                                     vhcr->in_param, &vhcr->out_param,
2349                                     (vhcr->in_modifier >> 8) & 0xFF);
2350                 break;
2351
2352         case RES_COUNTER:
2353                 err = counter_free_res(dev, slave, vhcr->op_modifier, alop,
2354                                        vhcr->in_param, &vhcr->out_param);
2355                 break;
2356
2357         case RES_XRCD:
2358                 err = xrcdn_free_res(dev, slave, vhcr->op_modifier, alop,
2359                                      vhcr->in_param, &vhcr->out_param);
2360
2361         default:
2362                 break;
2363         }
2364         return err;
2365 }
2366
2367 /* ugly but other choices are uglier */
2368 static int mr_phys_mpt(struct mlx4_mpt_entry *mpt)
2369 {
2370         return (be32_to_cpu(mpt->flags) >> 9) & 1;
2371 }
2372
2373 static int mr_get_mtt_addr(struct mlx4_mpt_entry *mpt)
2374 {
2375         return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8;
2376 }
2377
2378 static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt)
2379 {
2380         return be32_to_cpu(mpt->mtt_sz);
2381 }
2382
2383 static u32 mr_get_pd(struct mlx4_mpt_entry *mpt)
2384 {
2385         return be32_to_cpu(mpt->pd_flags) & 0x00ffffff;
2386 }
2387
2388 static int mr_is_fmr(struct mlx4_mpt_entry *mpt)
2389 {
2390         return be32_to_cpu(mpt->pd_flags) & MLX4_MPT_PD_FLAG_FAST_REG;
2391 }
2392
2393 static int mr_is_bind_enabled(struct mlx4_mpt_entry *mpt)
2394 {
2395         return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_BIND_ENABLE;
2396 }
2397
2398 static int mr_is_region(struct mlx4_mpt_entry *mpt)
2399 {
2400         return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_REGION;
2401 }
2402
2403 static int qp_get_mtt_addr(struct mlx4_qp_context *qpc)
2404 {
2405         return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8;
2406 }
2407
2408 static int srq_get_mtt_addr(struct mlx4_srq_context *srqc)
2409 {
2410         return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8;
2411 }
2412
2413 static int qp_get_mtt_size(struct mlx4_qp_context *qpc)
2414 {
2415         int page_shift = (qpc->log_page_size & 0x3f) + 12;
2416         int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf;
2417         int log_sq_sride = qpc->sq_size_stride & 7;
2418         int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf;
2419         int log_rq_stride = qpc->rq_size_stride & 7;
2420         int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1;
2421         int rss = (be32_to_cpu(qpc->flags) >> 13) & 1;
2422         u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff;
2423         int xrc = (ts == MLX4_QP_ST_XRC) ? 1 : 0;
2424         int sq_size;
2425         int rq_size;
2426         int total_pages;
2427         int total_mem;
2428         int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f;
2429
2430         sq_size = 1 << (log_sq_size + log_sq_sride + 4);
2431         rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4));
2432         total_mem = sq_size + rq_size;
2433         total_pages =
2434                 roundup_pow_of_two((total_mem + (page_offset << 6)) >>
2435                                    page_shift);
2436
2437         return total_pages;
2438 }
2439
2440 static int check_mtt_range(struct mlx4_dev *dev, int slave, int start,
2441                            int size, struct res_mtt *mtt)
2442 {
2443         int res_start = mtt->com.res_id;
2444         int res_size = (1 << mtt->order);
2445
2446         if (start < res_start || start + size > res_start + res_size)
2447                 return -EPERM;
2448         return 0;
2449 }
2450
2451 int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave,
2452                            struct mlx4_vhcr *vhcr,
2453                            struct mlx4_cmd_mailbox *inbox,
2454                            struct mlx4_cmd_mailbox *outbox,
2455                            struct mlx4_cmd_info *cmd)
2456 {
2457         int err;
2458         int index = vhcr->in_modifier;
2459         struct res_mtt *mtt;
2460         struct res_mpt *mpt;
2461         int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz;
2462         int phys;
2463         int id;
2464         u32 pd;
2465         int pd_slave;
2466
2467         id = index & mpt_mask(dev);
2468         err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt);
2469         if (err)
2470                 return err;
2471
2472         /* Disable memory windows for VFs. */
2473         if (!mr_is_region(inbox->buf)) {
2474                 err = -EPERM;
2475                 goto ex_abort;
2476         }
2477
2478         /* Make sure that the PD bits related to the slave id are zeros. */
2479         pd = mr_get_pd(inbox->buf);
2480         pd_slave = (pd >> 17) & 0x7f;
2481         if (pd_slave != 0 && pd_slave != slave) {
2482                 err = -EPERM;
2483                 goto ex_abort;
2484         }
2485
2486         if (mr_is_fmr(inbox->buf)) {
2487                 /* FMR and Bind Enable are forbidden in slave devices. */
2488                 if (mr_is_bind_enabled(inbox->buf)) {
2489                         err = -EPERM;
2490                         goto ex_abort;
2491                 }
2492                 /* FMR and Memory Windows are also forbidden. */
2493                 if (!mr_is_region(inbox->buf)) {
2494                         err = -EPERM;
2495                         goto ex_abort;
2496                 }
2497         }
2498
2499         phys = mr_phys_mpt(inbox->buf);
2500         if (!phys) {
2501                 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2502                 if (err)
2503                         goto ex_abort;
2504
2505                 err = check_mtt_range(dev, slave, mtt_base,
2506                                       mr_get_mtt_size(inbox->buf), mtt);
2507                 if (err)
2508                         goto ex_put;
2509
2510                 mpt->mtt = mtt;
2511         }
2512
2513         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2514         if (err)
2515                 goto ex_put;
2516
2517         if (!phys) {
2518                 atomic_inc(&mtt->ref_count);
2519                 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2520         }
2521
2522         res_end_move(dev, slave, RES_MPT, id);
2523         return 0;
2524
2525 ex_put:
2526         if (!phys)
2527                 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2528 ex_abort:
2529         res_abort_move(dev, slave, RES_MPT, id);
2530
2531         return err;
2532 }
2533
2534 int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave,
2535                            struct mlx4_vhcr *vhcr,
2536                            struct mlx4_cmd_mailbox *inbox,
2537                            struct mlx4_cmd_mailbox *outbox,
2538                            struct mlx4_cmd_info *cmd)
2539 {
2540         int err;
2541         int index = vhcr->in_modifier;
2542         struct res_mpt *mpt;
2543         int id;
2544
2545         id = index & mpt_mask(dev);
2546         err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt);
2547         if (err)
2548                 return err;
2549
2550         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2551         if (err)
2552                 goto ex_abort;
2553
2554         if (mpt->mtt)
2555                 atomic_dec(&mpt->mtt->ref_count);
2556
2557         res_end_move(dev, slave, RES_MPT, id);
2558         return 0;
2559
2560 ex_abort:
2561         res_abort_move(dev, slave, RES_MPT, id);
2562
2563         return err;
2564 }
2565
2566 int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave,
2567                            struct mlx4_vhcr *vhcr,
2568                            struct mlx4_cmd_mailbox *inbox,
2569                            struct mlx4_cmd_mailbox *outbox,
2570                            struct mlx4_cmd_info *cmd)
2571 {
2572         int err;
2573         int index = vhcr->in_modifier;
2574         struct res_mpt *mpt;
2575         int id;
2576
2577         id = index & mpt_mask(dev);
2578         err = get_res(dev, slave, id, RES_MPT, &mpt);
2579         if (err)
2580                 return err;
2581
2582         if (mpt->com.from_state != RES_MPT_HW) {
2583                 err = -EBUSY;
2584                 goto out;
2585         }
2586
2587         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2588
2589 out:
2590         put_res(dev, slave, id, RES_MPT);
2591         return err;
2592 }
2593
2594 static int qp_get_rcqn(struct mlx4_qp_context *qpc)
2595 {
2596         return be32_to_cpu(qpc->cqn_recv) & 0xffffff;
2597 }
2598
2599 static int qp_get_scqn(struct mlx4_qp_context *qpc)
2600 {
2601         return be32_to_cpu(qpc->cqn_send) & 0xffffff;
2602 }
2603
2604 static u32 qp_get_srqn(struct mlx4_qp_context *qpc)
2605 {
2606         return be32_to_cpu(qpc->srqn) & 0x1ffffff;
2607 }
2608
2609 static void adjust_proxy_tun_qkey(struct mlx4_dev *dev, struct mlx4_vhcr *vhcr,
2610                                   struct mlx4_qp_context *context)
2611 {
2612         u32 qpn = vhcr->in_modifier & 0xffffff;
2613         u32 qkey = 0;
2614
2615         if (mlx4_get_parav_qkey(dev, qpn, &qkey))
2616                 return;
2617
2618         /* adjust qkey in qp context */
2619         context->qkey = cpu_to_be32(qkey);
2620 }
2621
2622 int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
2623                              struct mlx4_vhcr *vhcr,
2624                              struct mlx4_cmd_mailbox *inbox,
2625                              struct mlx4_cmd_mailbox *outbox,
2626                              struct mlx4_cmd_info *cmd)
2627 {
2628         int err;
2629         int qpn = vhcr->in_modifier & 0x7fffff;
2630         struct res_mtt *mtt;
2631         struct res_qp *qp;
2632         struct mlx4_qp_context *qpc = inbox->buf + 8;
2633         int mtt_base = qp_get_mtt_addr(qpc) / dev->caps.mtt_entry_sz;
2634         int mtt_size = qp_get_mtt_size(qpc);
2635         struct res_cq *rcq;
2636         struct res_cq *scq;
2637         int rcqn = qp_get_rcqn(qpc);
2638         int scqn = qp_get_scqn(qpc);
2639         u32 srqn = qp_get_srqn(qpc) & 0xffffff;
2640         int use_srq = (qp_get_srqn(qpc) >> 24) & 1;
2641         struct res_srq *srq;
2642         int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff;
2643
2644         err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0);
2645         if (err)
2646                 return err;
2647         qp->local_qpn = local_qpn;
2648         qp->sched_queue = 0;
2649         qp->param3 = 0;
2650         qp->vlan_control = 0;
2651         qp->fvl_rx = 0;
2652         qp->pri_path_fl = 0;
2653         qp->vlan_index = 0;
2654         qp->feup = 0;
2655         qp->qpc_flags = be32_to_cpu(qpc->flags);
2656
2657         err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2658         if (err)
2659                 goto ex_abort;
2660
2661         err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt);
2662         if (err)
2663                 goto ex_put_mtt;
2664
2665         err = get_res(dev, slave, rcqn, RES_CQ, &rcq);
2666         if (err)
2667                 goto ex_put_mtt;
2668
2669         if (scqn != rcqn) {
2670                 err = get_res(dev, slave, scqn, RES_CQ, &scq);
2671                 if (err)
2672                         goto ex_put_rcq;
2673         } else
2674                 scq = rcq;
2675
2676         if (use_srq) {
2677                 err = get_res(dev, slave, srqn, RES_SRQ, &srq);
2678                 if (err)
2679                         goto ex_put_scq;
2680         }
2681
2682         adjust_proxy_tun_qkey(dev, vhcr, qpc);
2683         update_pkey_index(dev, slave, inbox);
2684         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2685         if (err)
2686                 goto ex_put_srq;
2687         atomic_inc(&mtt->ref_count);
2688         qp->mtt = mtt;
2689         atomic_inc(&rcq->ref_count);
2690         qp->rcq = rcq;
2691         atomic_inc(&scq->ref_count);
2692         qp->scq = scq;
2693
2694         if (scqn != rcqn)
2695                 put_res(dev, slave, scqn, RES_CQ);
2696
2697         if (use_srq) {
2698                 atomic_inc(&srq->ref_count);
2699                 put_res(dev, slave, srqn, RES_SRQ);
2700                 qp->srq = srq;
2701         }
2702         put_res(dev, slave, rcqn, RES_CQ);
2703         put_res(dev, slave, mtt_base, RES_MTT);
2704         res_end_move(dev, slave, RES_QP, qpn);
2705
2706         return 0;
2707
2708 ex_put_srq:
2709         if (use_srq)
2710                 put_res(dev, slave, srqn, RES_SRQ);
2711 ex_put_scq:
2712         if (scqn != rcqn)
2713                 put_res(dev, slave, scqn, RES_CQ);
2714 ex_put_rcq:
2715         put_res(dev, slave, rcqn, RES_CQ);
2716 ex_put_mtt:
2717         put_res(dev, slave, mtt_base, RES_MTT);
2718 ex_abort:
2719         res_abort_move(dev, slave, RES_QP, qpn);
2720
2721         return err;
2722 }
2723
2724 static int eq_get_mtt_addr(struct mlx4_eq_context *eqc)
2725 {
2726         return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8;
2727 }
2728
2729 static int eq_get_mtt_size(struct mlx4_eq_context *eqc)
2730 {
2731         int log_eq_size = eqc->log_eq_size & 0x1f;
2732         int page_shift = (eqc->log_page_size & 0x3f) + 12;
2733
2734         if (log_eq_size + 5 < page_shift)
2735                 return 1;
2736
2737         return 1 << (log_eq_size + 5 - page_shift);
2738 }
2739
2740 static int cq_get_mtt_addr(struct mlx4_cq_context *cqc)
2741 {
2742         return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8;
2743 }
2744
2745 static int cq_get_mtt_size(struct mlx4_cq_context *cqc)
2746 {
2747         int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f;
2748         int page_shift = (cqc->log_page_size & 0x3f) + 12;
2749
2750         if (log_cq_size + 5 < page_shift)
2751                 return 1;
2752
2753         return 1 << (log_cq_size + 5 - page_shift);
2754 }
2755
2756 int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave,
2757                           struct mlx4_vhcr *vhcr,
2758                           struct mlx4_cmd_mailbox *inbox,
2759                           struct mlx4_cmd_mailbox *outbox,
2760                           struct mlx4_cmd_info *cmd)
2761 {
2762         int err;
2763         int eqn = vhcr->in_modifier;
2764         int res_id = (slave << 8) | eqn;
2765         struct mlx4_eq_context *eqc = inbox->buf;
2766         int mtt_base = eq_get_mtt_addr(eqc) / dev->caps.mtt_entry_sz;
2767         int mtt_size = eq_get_mtt_size(eqc);
2768         struct res_eq *eq;
2769         struct res_mtt *mtt;
2770
2771         err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0);
2772         if (err)
2773                 return err;
2774         err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq);
2775         if (err)
2776                 goto out_add;
2777
2778         err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2779         if (err)
2780                 goto out_move;
2781
2782         err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt);
2783         if (err)
2784                 goto out_put;
2785
2786         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2787         if (err)
2788                 goto out_put;
2789
2790         atomic_inc(&mtt->ref_count);
2791         eq->mtt = mtt;
2792         put_res(dev, slave, mtt->com.res_id, RES_MTT);
2793         res_end_move(dev, slave, RES_EQ, res_id);
2794         return 0;
2795
2796 out_put:
2797         put_res(dev, slave, mtt->com.res_id, RES_MTT);
2798 out_move:
2799         res_abort_move(dev, slave, RES_EQ, res_id);
2800 out_add:
2801         rem_res_range(dev, slave, res_id, 1, RES_EQ, 0);
2802         return err;
2803 }
2804
2805 static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start,
2806                               int len, struct res_mtt **res)
2807 {
2808         struct mlx4_priv *priv = mlx4_priv(dev);
2809         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
2810         struct res_mtt *mtt;
2811         int err = -EINVAL;
2812
2813         spin_lock_irq(mlx4_tlock(dev));
2814         list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT],
2815                             com.list) {
2816                 if (!check_mtt_range(dev, slave, start, len, mtt)) {
2817                         *res = mtt;
2818                         mtt->com.from_state = mtt->com.state;
2819                         mtt->com.state = RES_MTT_BUSY;
2820                         err = 0;
2821                         break;
2822                 }
2823         }
2824         spin_unlock_irq(mlx4_tlock(dev));
2825
2826         return err;
2827 }
2828
2829 static int verify_qp_parameters(struct mlx4_dev *dev,
2830                                 struct mlx4_vhcr *vhcr,
2831                                 struct mlx4_cmd_mailbox *inbox,
2832                                 enum qp_transition transition, u8 slave)
2833 {
2834         u32                     qp_type;
2835         u32                     qpn;
2836         struct mlx4_qp_context  *qp_ctx;
2837         enum mlx4_qp_optpar     optpar;
2838         int port;
2839         int num_gids;
2840
2841         qp_ctx  = inbox->buf + 8;
2842         qp_type = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
2843         optpar  = be32_to_cpu(*(__be32 *) inbox->buf);
2844
2845         switch (qp_type) {
2846         case MLX4_QP_ST_RC:
2847         case MLX4_QP_ST_XRC:
2848         case MLX4_QP_ST_UC:
2849                 switch (transition) {
2850                 case QP_TRANS_INIT2RTR:
2851                 case QP_TRANS_RTR2RTS:
2852                 case QP_TRANS_RTS2RTS:
2853                 case QP_TRANS_SQD2SQD:
2854                 case QP_TRANS_SQD2RTS:
2855                         if (slave != mlx4_master_func_num(dev))
2856                                 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) {
2857                                         port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
2858                                         if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB)
2859                                                 num_gids = mlx4_get_slave_num_gids(dev, slave, port);
2860                                         else
2861                                                 num_gids = 1;
2862                                         if (qp_ctx->pri_path.mgid_index >= num_gids)
2863                                                 return -EINVAL;
2864                                 }
2865                                 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
2866                                         port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1;
2867                                         if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB)
2868                                                 num_gids = mlx4_get_slave_num_gids(dev, slave, port);
2869                                         else
2870                                                 num_gids = 1;
2871                                         if (qp_ctx->alt_path.mgid_index >= num_gids)
2872                                                 return -EINVAL;
2873                                 }
2874                         break;
2875                 case MLX4_QP_ST_MLX:
2876                         qpn = vhcr->in_modifier & 0x7fffff;
2877                         port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
2878                         if (transition == QP_TRANS_INIT2RTR &&
2879                             slave != mlx4_master_func_num(dev) &&
2880                             mlx4_is_qp_reserved(dev, qpn) &&
2881                             !mlx4_vf_smi_enabled(dev, slave, port)) {
2882                                 /* only enabled VFs may create MLX proxy QPs */
2883                                 mlx4_err(dev, "%s: unprivileged slave %d attempting to create an MLX proxy special QP on port %d\n",
2884                                          __func__, slave, port);
2885                                 return -EPERM;
2886                         }
2887                         break;
2888
2889                 default:
2890                         break;
2891                 }
2892
2893                 break;
2894         default:
2895                 break;
2896         }
2897
2898         return 0;
2899 }
2900
2901 int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave,
2902                            struct mlx4_vhcr *vhcr,
2903                            struct mlx4_cmd_mailbox *inbox,
2904                            struct mlx4_cmd_mailbox *outbox,
2905                            struct mlx4_cmd_info *cmd)
2906 {
2907         struct mlx4_mtt mtt;
2908         __be64 *page_list = inbox->buf;
2909         u64 *pg_list = (u64 *)page_list;
2910         int i;
2911         struct res_mtt *rmtt = NULL;
2912         int start = be64_to_cpu(page_list[0]);
2913         int npages = vhcr->in_modifier;
2914         int err;
2915
2916         err = get_containing_mtt(dev, slave, start, npages, &rmtt);
2917         if (err)
2918                 return err;
2919
2920         /* Call the SW implementation of write_mtt:
2921          * - Prepare a dummy mtt struct
2922          * - Translate inbox contents to simple addresses in host endianess */
2923         mtt.offset = 0;  /* TBD this is broken but I don't handle it since
2924                             we don't really use it */
2925         mtt.order = 0;
2926         mtt.page_shift = 0;
2927         for (i = 0; i < npages; ++i)
2928                 pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL);
2929
2930         err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages,
2931                                ((u64 *)page_list + 2));
2932
2933         if (rmtt)
2934                 put_res(dev, slave, rmtt->com.res_id, RES_MTT);
2935
2936         return err;
2937 }
2938
2939 int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave,
2940                           struct mlx4_vhcr *vhcr,
2941                           struct mlx4_cmd_mailbox *inbox,
2942                           struct mlx4_cmd_mailbox *outbox,
2943                           struct mlx4_cmd_info *cmd)
2944 {
2945         int eqn = vhcr->in_modifier;
2946         int res_id = eqn | (slave << 8);
2947         struct res_eq *eq;
2948         int err;
2949
2950         err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq);
2951         if (err)
2952                 return err;
2953
2954         err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL);
2955         if (err)
2956                 goto ex_abort;
2957
2958         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2959         if (err)
2960                 goto ex_put;
2961
2962         atomic_dec(&eq->mtt->ref_count);
2963         put_res(dev, slave, eq->mtt->com.res_id, RES_MTT);
2964         res_end_move(dev, slave, RES_EQ, res_id);
2965         rem_res_range(dev, slave, res_id, 1, RES_EQ, 0);
2966
2967         return 0;
2968
2969 ex_put:
2970         put_res(dev, slave, eq->mtt->com.res_id, RES_MTT);
2971 ex_abort:
2972         res_abort_move(dev, slave, RES_EQ, res_id);
2973
2974         return err;
2975 }
2976
2977 int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe)
2978 {
2979         struct mlx4_priv *priv = mlx4_priv(dev);
2980         struct mlx4_slave_event_eq_info *event_eq;
2981         struct mlx4_cmd_mailbox *mailbox;
2982         u32 in_modifier = 0;
2983         int err;
2984         int res_id;
2985         struct res_eq *req;
2986
2987         if (!priv->mfunc.master.slave_state)
2988                 return -EINVAL;
2989
2990         event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type];
2991
2992         /* Create the event only if the slave is registered */
2993         if (event_eq->eqn < 0)
2994                 return 0;
2995
2996         mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]);
2997         res_id = (slave << 8) | event_eq->eqn;
2998         err = get_res(dev, slave, res_id, RES_EQ, &req);
2999         if (err)
3000                 goto unlock;
3001
3002         if (req->com.from_state != RES_EQ_HW) {
3003                 err = -EINVAL;
3004                 goto put;
3005         }
3006
3007         mailbox = mlx4_alloc_cmd_mailbox(dev);
3008         if (IS_ERR(mailbox)) {
3009                 err = PTR_ERR(mailbox);
3010                 goto put;
3011         }
3012
3013         if (eqe->type == MLX4_EVENT_TYPE_CMD) {
3014                 ++event_eq->token;
3015                 eqe->event.cmd.token = cpu_to_be16(event_eq->token);
3016         }
3017
3018         memcpy(mailbox->buf, (u8 *) eqe, 28);
3019
3020         in_modifier = (slave & 0xff) | ((event_eq->eqn & 0xff) << 16);
3021
3022         err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0,
3023                        MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B,
3024                        MLX4_CMD_NATIVE);
3025
3026         put_res(dev, slave, res_id, RES_EQ);
3027         mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]);
3028         mlx4_free_cmd_mailbox(dev, mailbox);
3029         return err;
3030
3031 put:
3032         put_res(dev, slave, res_id, RES_EQ);
3033
3034 unlock:
3035         mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]);
3036         return err;
3037 }
3038
3039 int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave,
3040                           struct mlx4_vhcr *vhcr,
3041                           struct mlx4_cmd_mailbox *inbox,
3042                           struct mlx4_cmd_mailbox *outbox,
3043                           struct mlx4_cmd_info *cmd)
3044 {
3045         int eqn = vhcr->in_modifier;
3046         int res_id = eqn | (slave << 8);
3047         struct res_eq *eq;
3048         int err;
3049
3050         err = get_res(dev, slave, res_id, RES_EQ, &eq);
3051         if (err)
3052                 return err;
3053
3054         if (eq->com.from_state != RES_EQ_HW) {
3055                 err = -EINVAL;
3056                 goto ex_put;
3057         }
3058
3059         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3060
3061 ex_put:
3062         put_res(dev, slave, res_id, RES_EQ);
3063         return err;
3064 }
3065
3066 int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave,
3067                           struct mlx4_vhcr *vhcr,
3068                           struct mlx4_cmd_mailbox *inbox,
3069                           struct mlx4_cmd_mailbox *outbox,
3070                           struct mlx4_cmd_info *cmd)
3071 {
3072         int err;
3073         int cqn = vhcr->in_modifier;
3074         struct mlx4_cq_context *cqc = inbox->buf;
3075         int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz;
3076         struct res_cq *cq;
3077         struct res_mtt *mtt;
3078
3079         err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq);
3080         if (err)
3081                 return err;
3082         err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3083         if (err)
3084                 goto out_move;
3085         err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt);
3086         if (err)
3087                 goto out_put;
3088         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3089         if (err)
3090                 goto out_put;
3091         atomic_inc(&mtt->ref_count);
3092         cq->mtt = mtt;
3093         put_res(dev, slave, mtt->com.res_id, RES_MTT);
3094         res_end_move(dev, slave, RES_CQ, cqn);
3095         return 0;
3096
3097 out_put:
3098         put_res(dev, slave, mtt->com.res_id, RES_MTT);
3099 out_move:
3100         res_abort_move(dev, slave, RES_CQ, cqn);
3101         return err;
3102 }
3103
3104 int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave,
3105                           struct mlx4_vhcr *vhcr,
3106                           struct mlx4_cmd_mailbox *inbox,
3107                           struct mlx4_cmd_mailbox *outbox,
3108                           struct mlx4_cmd_info *cmd)
3109 {
3110         int err;
3111         int cqn = vhcr->in_modifier;
3112         struct res_cq *cq;
3113
3114         err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq);
3115         if (err)
3116                 return err;
3117         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3118         if (err)
3119                 goto out_move;
3120         atomic_dec(&cq->mtt->ref_count);
3121         res_end_move(dev, slave, RES_CQ, cqn);
3122         return 0;
3123
3124 out_move:
3125         res_abort_move(dev, slave, RES_CQ, cqn);
3126         return err;
3127 }
3128
3129 int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave,
3130                           struct mlx4_vhcr *vhcr,
3131                           struct mlx4_cmd_mailbox *inbox,
3132                           struct mlx4_cmd_mailbox *outbox,
3133                           struct mlx4_cmd_info *cmd)
3134 {
3135         int cqn = vhcr->in_modifier;
3136         struct res_cq *cq;
3137         int err;
3138
3139         err = get_res(dev, slave, cqn, RES_CQ, &cq);
3140         if (err)
3141                 return err;
3142
3143         if (cq->com.from_state != RES_CQ_HW)
3144                 goto ex_put;
3145
3146         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3147 ex_put:
3148         put_res(dev, slave, cqn, RES_CQ);
3149
3150         return err;
3151 }
3152
3153 static int handle_resize(struct mlx4_dev *dev, int slave,
3154                          struct mlx4_vhcr *vhcr,
3155                          struct mlx4_cmd_mailbox *inbox,
3156                          struct mlx4_cmd_mailbox *outbox,
3157                          struct mlx4_cmd_info *cmd,
3158                          struct res_cq *cq)
3159 {
3160         int err;
3161         struct res_mtt *orig_mtt;
3162         struct res_mtt *mtt;
3163         struct mlx4_cq_context *cqc = inbox->buf;
3164         int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz;
3165
3166         err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt);
3167         if (err)
3168                 return err;
3169
3170         if (orig_mtt != cq->mtt) {
3171                 err = -EINVAL;
3172                 goto ex_put;
3173         }
3174
3175         err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3176         if (err)
3177                 goto ex_put;
3178
3179         err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt);
3180         if (err)
3181                 goto ex_put1;
3182         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3183         if (err)
3184                 goto ex_put1;
3185         atomic_dec(&orig_mtt->ref_count);
3186         put_res(dev, slave, orig_mtt->com.res_id, RES_MTT);
3187         atomic_inc(&mtt->ref_count);
3188         cq->mtt = mtt;
3189         put_res(dev, slave, mtt->com.res_id, RES_MTT);
3190         return 0;
3191
3192 ex_put1:
3193         put_res(dev, slave, mtt->com.res_id, RES_MTT);
3194 ex_put:
3195         put_res(dev, slave, orig_mtt->com.res_id, RES_MTT);
3196
3197         return err;
3198
3199 }
3200
3201 int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave,
3202                            struct mlx4_vhcr *vhcr,
3203                            struct mlx4_cmd_mailbox *inbox,
3204                            struct mlx4_cmd_mailbox *outbox,
3205                            struct mlx4_cmd_info *cmd)
3206 {
3207         int cqn = vhcr->in_modifier;
3208         struct res_cq *cq;
3209         int err;
3210
3211         err = get_res(dev, slave, cqn, RES_CQ, &cq);
3212         if (err)
3213                 return err;
3214
3215         if (cq->com.from_state != RES_CQ_HW)
3216                 goto ex_put;
3217
3218         if (vhcr->op_modifier == 0) {
3219                 err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq);
3220                 goto ex_put;
3221         }
3222
3223         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3224 ex_put:
3225         put_res(dev, slave, cqn, RES_CQ);
3226
3227         return err;
3228 }
3229
3230 static int srq_get_mtt_size(struct mlx4_srq_context *srqc)
3231 {
3232         int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf;
3233         int log_rq_stride = srqc->logstride & 7;
3234         int page_shift = (srqc->log_page_size & 0x3f) + 12;
3235
3236         if (log_srq_size + log_rq_stride + 4 < page_shift)
3237                 return 1;
3238
3239         return 1 << (log_srq_size + log_rq_stride + 4 - page_shift);
3240 }
3241
3242 int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3243                            struct mlx4_vhcr *vhcr,
3244                            struct mlx4_cmd_mailbox *inbox,
3245                            struct mlx4_cmd_mailbox *outbox,
3246                            struct mlx4_cmd_info *cmd)
3247 {
3248         int err;
3249         int srqn = vhcr->in_modifier;
3250         struct res_mtt *mtt;
3251         struct res_srq *srq;
3252         struct mlx4_srq_context *srqc = inbox->buf;
3253         int mtt_base = srq_get_mtt_addr(srqc) / dev->caps.mtt_entry_sz;
3254
3255         if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff))
3256                 return -EINVAL;
3257
3258         err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq);
3259         if (err)
3260                 return err;
3261         err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3262         if (err)
3263                 goto ex_abort;
3264         err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc),
3265                               mtt);
3266         if (err)
3267                 goto ex_put_mtt;
3268
3269         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3270         if (err)
3271                 goto ex_put_mtt;
3272
3273         atomic_inc(&mtt->ref_count);
3274         srq->mtt = mtt;
3275         put_res(dev, slave, mtt->com.res_id, RES_MTT);
3276         res_end_move(dev, slave, RES_SRQ, srqn);
3277         return 0;
3278
3279 ex_put_mtt:
3280         put_res(dev, slave, mtt->com.res_id, RES_MTT);
3281 ex_abort:
3282         res_abort_move(dev, slave, RES_SRQ, srqn);
3283
3284         return err;
3285 }
3286
3287 int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3288                            struct mlx4_vhcr *vhcr,
3289                            struct mlx4_cmd_mailbox *inbox,
3290                            struct mlx4_cmd_mailbox *outbox,
3291                            struct mlx4_cmd_info *cmd)
3292 {
3293         int err;
3294         int srqn = vhcr->in_modifier;
3295         struct res_srq *srq;
3296
3297         err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq);
3298         if (err)
3299                 return err;
3300         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3301         if (err)
3302                 goto ex_abort;
3303         atomic_dec(&srq->mtt->ref_count);
3304         if (srq->cq)
3305                 atomic_dec(&srq->cq->ref_count);
3306         res_end_move(dev, slave, RES_SRQ, srqn);
3307
3308         return 0;
3309
3310 ex_abort:
3311         res_abort_move(dev, slave, RES_SRQ, srqn);
3312
3313         return err;
3314 }
3315
3316 int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3317                            struct mlx4_vhcr *vhcr,
3318                            struct mlx4_cmd_mailbox *inbox,
3319                            struct mlx4_cmd_mailbox *outbox,
3320                            struct mlx4_cmd_info *cmd)
3321 {
3322         int err;
3323         int srqn = vhcr->in_modifier;
3324         struct res_srq *srq;
3325
3326         err = get_res(dev, slave, srqn, RES_SRQ, &srq);
3327         if (err)
3328                 return err;
3329         if (srq->com.from_state != RES_SRQ_HW) {
3330                 err = -EBUSY;
3331                 goto out;
3332         }
3333         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3334 out:
3335         put_res(dev, slave, srqn, RES_SRQ);
3336         return err;
3337 }
3338
3339 int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3340                          struct mlx4_vhcr *vhcr,
3341                          struct mlx4_cmd_mailbox *inbox,
3342                          struct mlx4_cmd_mailbox *outbox,
3343                          struct mlx4_cmd_info *cmd)
3344 {
3345         int err;
3346         int srqn = vhcr->in_modifier;
3347         struct res_srq *srq;
3348
3349         err = get_res(dev, slave, srqn, RES_SRQ, &srq);
3350         if (err)
3351                 return err;
3352
3353         if (srq->com.from_state != RES_SRQ_HW) {
3354                 err = -EBUSY;
3355                 goto out;
3356         }
3357
3358         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3359 out:
3360         put_res(dev, slave, srqn, RES_SRQ);
3361         return err;
3362 }
3363
3364 int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave,
3365                         struct mlx4_vhcr *vhcr,
3366                         struct mlx4_cmd_mailbox *inbox,
3367                         struct mlx4_cmd_mailbox *outbox,
3368                         struct mlx4_cmd_info *cmd)
3369 {
3370         int err;
3371         int qpn = vhcr->in_modifier & 0x7fffff;
3372         struct res_qp *qp;
3373
3374         err = get_res(dev, slave, qpn, RES_QP, &qp);
3375         if (err)
3376                 return err;
3377         if (qp->com.from_state != RES_QP_HW) {
3378                 err = -EBUSY;
3379                 goto out;
3380         }
3381
3382         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3383 out:
3384         put_res(dev, slave, qpn, RES_QP);
3385         return err;
3386 }
3387
3388 int mlx4_INIT2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
3389                               struct mlx4_vhcr *vhcr,
3390                               struct mlx4_cmd_mailbox *inbox,
3391                               struct mlx4_cmd_mailbox *outbox,
3392                               struct mlx4_cmd_info *cmd)
3393 {
3394         struct mlx4_qp_context *context = inbox->buf + 8;
3395         adjust_proxy_tun_qkey(dev, vhcr, context);
3396         update_pkey_index(dev, slave, inbox);
3397         return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3398 }
3399
3400 static int adjust_qp_sched_queue(struct mlx4_dev *dev, int slave,
3401                                   struct mlx4_qp_context *qpc,
3402                                   struct mlx4_cmd_mailbox *inbox)
3403 {
3404         enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *)inbox->buf);
3405         u8 pri_sched_queue;
3406         int port = mlx4_slave_convert_port(
3407                    dev, slave, (qpc->pri_path.sched_queue >> 6 & 1) + 1) - 1;
3408
3409         if (port < 0)
3410                 return -EINVAL;
3411
3412         pri_sched_queue = (qpc->pri_path.sched_queue & ~(1 << 6)) |
3413                           ((port & 1) << 6);
3414
3415         if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH ||
3416             mlx4_is_eth(dev, port + 1)) {
3417                 qpc->pri_path.sched_queue = pri_sched_queue;
3418         }
3419
3420         if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
3421                 port = mlx4_slave_convert_port(
3422                                 dev, slave, (qpc->alt_path.sched_queue >> 6 & 1)
3423                                 + 1) - 1;
3424                 if (port < 0)
3425                         return -EINVAL;
3426                 qpc->alt_path.sched_queue =
3427                         (qpc->alt_path.sched_queue & ~(1 << 6)) |
3428                         (port & 1) << 6;
3429         }
3430         return 0;
3431 }
3432
3433 static int roce_verify_mac(struct mlx4_dev *dev, int slave,
3434                                 struct mlx4_qp_context *qpc,
3435                                 struct mlx4_cmd_mailbox *inbox)
3436 {
3437         u64 mac;
3438         int port;
3439         u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff;
3440         u8 sched = *(u8 *)(inbox->buf + 64);
3441         u8 smac_ix;
3442
3443         port = (sched >> 6 & 1) + 1;
3444         if (mlx4_is_eth(dev, port) && (ts != MLX4_QP_ST_MLX)) {
3445                 smac_ix = qpc->pri_path.grh_mylmc & 0x7f;
3446                 if (mac_find_smac_ix_in_slave(dev, slave, port, smac_ix, &mac))
3447                         return -ENOENT;
3448         }
3449         return 0;
3450 }
3451
3452 int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave,
3453                              struct mlx4_vhcr *vhcr,
3454                              struct mlx4_cmd_mailbox *inbox,
3455                              struct mlx4_cmd_mailbox *outbox,
3456                              struct mlx4_cmd_info *cmd)
3457 {
3458         int err;
3459         struct mlx4_qp_context *qpc = inbox->buf + 8;
3460         int qpn = vhcr->in_modifier & 0x7fffff;
3461         struct res_qp *qp;
3462         u8 orig_sched_queue;
3463         __be32  orig_param3 = qpc->param3;
3464         u8 orig_vlan_control = qpc->pri_path.vlan_control;
3465         u8 orig_fvl_rx = qpc->pri_path.fvl_rx;
3466         u8 orig_pri_path_fl = qpc->pri_path.fl;
3467         u8 orig_vlan_index = qpc->pri_path.vlan_index;
3468         u8 orig_feup = qpc->pri_path.feup;
3469
3470         err = adjust_qp_sched_queue(dev, slave, qpc, inbox);
3471         if (err)
3472                 return err;
3473         err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_INIT2RTR, slave);
3474         if (err)
3475                 return err;
3476
3477         if (roce_verify_mac(dev, slave, qpc, inbox))
3478                 return -EINVAL;
3479
3480         update_pkey_index(dev, slave, inbox);
3481         update_gid(dev, inbox, (u8)slave);
3482         adjust_proxy_tun_qkey(dev, vhcr, qpc);
3483         orig_sched_queue = qpc->pri_path.sched_queue;
3484         err = update_vport_qp_param(dev, inbox, slave, qpn);
3485         if (err)
3486                 return err;
3487
3488         err = get_res(dev, slave, qpn, RES_QP, &qp);
3489         if (err)
3490                 return err;
3491         if (qp->com.from_state != RES_QP_HW) {
3492                 err = -EBUSY;
3493                 goto out;
3494         }
3495
3496         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3497 out:
3498         /* if no error, save sched queue value passed in by VF. This is
3499          * essentially the QOS value provided by the VF. This will be useful
3500          * if we allow dynamic changes from VST back to VGT
3501          */
3502         if (!err) {
3503                 qp->sched_queue = orig_sched_queue;
3504                 qp->param3      = orig_param3;
3505                 qp->vlan_control = orig_vlan_control;
3506                 qp->fvl_rx      =  orig_fvl_rx;
3507                 qp->pri_path_fl = orig_pri_path_fl;
3508                 qp->vlan_index  = orig_vlan_index;
3509                 qp->feup        = orig_feup;
3510         }
3511         put_res(dev, slave, qpn, RES_QP);
3512         return err;
3513 }
3514
3515 int mlx4_RTR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3516                             struct mlx4_vhcr *vhcr,
3517                             struct mlx4_cmd_mailbox *inbox,
3518                             struct mlx4_cmd_mailbox *outbox,
3519                             struct mlx4_cmd_info *cmd)
3520 {
3521         int err;
3522         struct mlx4_qp_context *context = inbox->buf + 8;
3523
3524         err = adjust_qp_sched_queue(dev, slave, context, inbox);
3525         if (err)
3526                 return err;
3527         err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_RTR2RTS, slave);
3528         if (err)
3529                 return err;
3530
3531         update_pkey_index(dev, slave, inbox);
3532         update_gid(dev, inbox, (u8)slave);
3533         adjust_proxy_tun_qkey(dev, vhcr, context);
3534         return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3535 }
3536
3537 int mlx4_RTS2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3538                             struct mlx4_vhcr *vhcr,
3539                             struct mlx4_cmd_mailbox *inbox,
3540                             struct mlx4_cmd_mailbox *outbox,
3541                             struct mlx4_cmd_info *cmd)
3542 {
3543         int err;
3544         struct mlx4_qp_context *context = inbox->buf + 8;
3545
3546         err = adjust_qp_sched_queue(dev, slave, context, inbox);
3547         if (err)
3548                 return err;
3549         err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_RTS2RTS, slave);
3550         if (err)
3551                 return err;
3552
3553         update_pkey_index(dev, slave, inbox);
3554         update_gid(dev, inbox, (u8)slave);
3555         adjust_proxy_tun_qkey(dev, vhcr, context);
3556         return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3557 }
3558
3559
3560 int mlx4_SQERR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3561                               struct mlx4_vhcr *vhcr,
3562                               struct mlx4_cmd_mailbox *inbox,
3563                               struct mlx4_cmd_mailbox *outbox,
3564                               struct mlx4_cmd_info *cmd)
3565 {
3566         struct mlx4_qp_context *context = inbox->buf + 8;
3567         int err = adjust_qp_sched_queue(dev, slave, context, inbox);
3568         if (err)
3569                 return err;
3570         adjust_proxy_tun_qkey(dev, vhcr, context);
3571         return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3572 }
3573
3574 int mlx4_SQD2SQD_QP_wrapper(struct mlx4_dev *dev, int slave,
3575                             struct mlx4_vhcr *vhcr,
3576                             struct mlx4_cmd_mailbox *inbox,
3577                             struct mlx4_cmd_mailbox *outbox,
3578                             struct mlx4_cmd_info *cmd)
3579 {
3580         int err;
3581         struct mlx4_qp_context *context = inbox->buf + 8;
3582
3583         err = adjust_qp_sched_queue(dev, slave, context, inbox);
3584         if (err)
3585                 return err;
3586         err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_SQD2SQD, slave);
3587         if (err)
3588                 return err;
3589
3590         adjust_proxy_tun_qkey(dev, vhcr, context);
3591         update_gid(dev, inbox, (u8)slave);
3592         update_pkey_index(dev, slave, inbox);
3593         return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3594 }
3595
3596 int mlx4_SQD2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3597                             struct mlx4_vhcr *vhcr,
3598                             struct mlx4_cmd_mailbox *inbox,
3599                             struct mlx4_cmd_mailbox *outbox,
3600                             struct mlx4_cmd_info *cmd)
3601 {
3602         int err;
3603         struct mlx4_qp_context *context = inbox->buf + 8;
3604
3605         err = adjust_qp_sched_queue(dev, slave, context, inbox);
3606         if (err)
3607                 return err;
3608         err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_SQD2RTS, slave);
3609         if (err)
3610                 return err;
3611
3612         adjust_proxy_tun_qkey(dev, vhcr, context);
3613         update_gid(dev, inbox, (u8)slave);
3614         update_pkey_index(dev, slave, inbox);
3615         return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3616 }
3617
3618 int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave,
3619                          struct mlx4_vhcr *vhcr,
3620                          struct mlx4_cmd_mailbox *inbox,
3621                          struct mlx4_cmd_mailbox *outbox,
3622                          struct mlx4_cmd_info *cmd)
3623 {
3624         int err;
3625         int qpn = vhcr->in_modifier & 0x7fffff;
3626         struct res_qp *qp;
3627
3628         err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0);
3629         if (err)
3630                 return err;
3631         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3632         if (err)
3633                 goto ex_abort;
3634
3635         atomic_dec(&qp->mtt->ref_count);
3636         atomic_dec(&qp->rcq->ref_count);
3637         atomic_dec(&qp->scq->ref_count);
3638         if (qp->srq)
3639                 atomic_dec(&qp->srq->ref_count);
3640         res_end_move(dev, slave, RES_QP, qpn);
3641         return 0;
3642
3643 ex_abort:
3644         res_abort_move(dev, slave, RES_QP, qpn);
3645
3646         return err;
3647 }
3648
3649 static struct res_gid *find_gid(struct mlx4_dev *dev, int slave,
3650                                 struct res_qp *rqp, u8 *gid)
3651 {
3652         struct res_gid *res;
3653
3654         list_for_each_entry(res, &rqp->mcg_list, list) {
3655                 if (!memcmp(res->gid, gid, 16))
3656                         return res;
3657         }
3658         return NULL;
3659 }
3660
3661 static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp,
3662                        u8 *gid, enum mlx4_protocol prot,
3663                        enum mlx4_steer_type steer, u64 reg_id)
3664 {
3665         struct res_gid *res;
3666         int err;
3667
3668         res = kzalloc(sizeof *res, GFP_KERNEL);
3669         if (!res)
3670                 return -ENOMEM;
3671
3672         spin_lock_irq(&rqp->mcg_spl);
3673         if (find_gid(dev, slave, rqp, gid)) {
3674                 kfree(res);
3675                 err = -EEXIST;
3676         } else {
3677                 memcpy(res->gid, gid, 16);
3678                 res->prot = prot;
3679                 res->steer = steer;
3680                 res->reg_id = reg_id;
3681                 list_add_tail(&res->list, &rqp->mcg_list);
3682                 err = 0;
3683         }
3684         spin_unlock_irq(&rqp->mcg_spl);
3685
3686         return err;
3687 }
3688
3689 static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp,
3690                        u8 *gid, enum mlx4_protocol prot,
3691                        enum mlx4_steer_type steer, u64 *reg_id)
3692 {
3693         struct res_gid *res;
3694         int err;
3695
3696         spin_lock_irq(&rqp->mcg_spl);
3697         res = find_gid(dev, slave, rqp, gid);
3698         if (!res || res->prot != prot || res->steer != steer)
3699                 err = -EINVAL;
3700         else {
3701                 *reg_id = res->reg_id;
3702                 list_del(&res->list);
3703                 kfree(res);
3704                 err = 0;
3705         }
3706         spin_unlock_irq(&rqp->mcg_spl);
3707
3708         return err;
3709 }
3710
3711 static int qp_attach(struct mlx4_dev *dev, int slave, struct mlx4_qp *qp,
3712                      u8 gid[16], int block_loopback, enum mlx4_protocol prot,
3713                      enum mlx4_steer_type type, u64 *reg_id)
3714 {
3715         switch (dev->caps.steering_mode) {
3716         case MLX4_STEERING_MODE_DEVICE_MANAGED: {
3717                 int port = mlx4_slave_convert_port(dev, slave, gid[5]);
3718                 if (port < 0)
3719                         return port;
3720                 return mlx4_trans_to_dmfs_attach(dev, qp, gid, port,
3721                                                 block_loopback, prot,
3722                                                 reg_id);
3723         }
3724         case MLX4_STEERING_MODE_B0:
3725                 if (prot == MLX4_PROT_ETH) {
3726                         int port = mlx4_slave_convert_port(dev, slave, gid[5]);
3727                         if (port < 0)
3728                                 return port;
3729                         gid[5] = port;
3730                 }
3731                 return mlx4_qp_attach_common(dev, qp, gid,
3732                                             block_loopback, prot, type);
3733         default:
3734                 return -EINVAL;
3735         }
3736 }
3737
3738 static int qp_detach(struct mlx4_dev *dev, struct mlx4_qp *qp,
3739                      u8 gid[16], enum mlx4_protocol prot,
3740                      enum mlx4_steer_type type, u64 reg_id)
3741 {
3742         switch (dev->caps.steering_mode) {
3743         case MLX4_STEERING_MODE_DEVICE_MANAGED:
3744                 return mlx4_flow_detach(dev, reg_id);
3745         case MLX4_STEERING_MODE_B0:
3746                 return mlx4_qp_detach_common(dev, qp, gid, prot, type);
3747         default:
3748                 return -EINVAL;
3749         }
3750 }
3751
3752 static int mlx4_adjust_port(struct mlx4_dev *dev, int slave,
3753                             u8 *gid, enum mlx4_protocol prot)
3754 {
3755         int real_port;
3756
3757         if (prot != MLX4_PROT_ETH)
3758                 return 0;
3759
3760         if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0 ||
3761             dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
3762                 real_port = mlx4_slave_convert_port(dev, slave, gid[5]);
3763                 if (real_port < 0)
3764                         return -EINVAL;
3765                 gid[5] = real_port;
3766         }
3767
3768         return 0;
3769 }
3770
3771 int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
3772                                struct mlx4_vhcr *vhcr,
3773                                struct mlx4_cmd_mailbox *inbox,
3774                                struct mlx4_cmd_mailbox *outbox,
3775                                struct mlx4_cmd_info *cmd)
3776 {
3777         struct mlx4_qp qp; /* dummy for calling attach/detach */
3778         u8 *gid = inbox->buf;
3779         enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7;
3780         int err;
3781         int qpn;
3782         struct res_qp *rqp;
3783         u64 reg_id = 0;
3784         int attach = vhcr->op_modifier;
3785         int block_loopback = vhcr->in_modifier >> 31;
3786         u8 steer_type_mask = 2;
3787         enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1;
3788
3789         qpn = vhcr->in_modifier & 0xffffff;
3790         err = get_res(dev, slave, qpn, RES_QP, &rqp);
3791         if (err)
3792                 return err;
3793
3794         qp.qpn = qpn;
3795         if (attach) {
3796                 err = qp_attach(dev, slave, &qp, gid, block_loopback, prot,
3797                                 type, &reg_id);
3798                 if (err) {
3799                         pr_err("Fail to attach rule to qp 0x%x\n", qpn);
3800                         goto ex_put;
3801                 }
3802                 err = add_mcg_res(dev, slave, rqp, gid, prot, type, reg_id);
3803                 if (err)
3804                         goto ex_detach;
3805         } else {
3806                 err = mlx4_adjust_port(dev, slave, gid, prot);
3807                 if (err)
3808                         goto ex_put;
3809
3810                 err = rem_mcg_res(dev, slave, rqp, gid, prot, type, &reg_id);
3811                 if (err)
3812                         goto ex_put;
3813
3814                 err = qp_detach(dev, &qp, gid, prot, type, reg_id);
3815                 if (err)
3816                         pr_err("Fail to detach rule from qp 0x%x reg_id = 0x%llx\n",
3817                                qpn, reg_id);
3818         }
3819         put_res(dev, slave, qpn, RES_QP);
3820         return err;
3821
3822 ex_detach:
3823         qp_detach(dev, &qp, gid, prot, type, reg_id);
3824 ex_put:
3825         put_res(dev, slave, qpn, RES_QP);
3826         return err;
3827 }
3828
3829 /*
3830  * MAC validation for Flow Steering rules.
3831  * VF can attach rules only with a mac address which is assigned to it.
3832  */
3833 static int validate_eth_header_mac(int slave, struct _rule_hw *eth_header,
3834                                    struct list_head *rlist)
3835 {
3836         struct mac_res *res, *tmp;
3837         __be64 be_mac;
3838
3839         /* make sure it isn't multicast or broadcast mac*/
3840         if (!is_multicast_ether_addr(eth_header->eth.dst_mac) &&
3841             !is_broadcast_ether_addr(eth_header->eth.dst_mac)) {
3842                 list_for_each_entry_safe(res, tmp, rlist, list) {
3843                         be_mac = cpu_to_be64(res->mac << 16);
3844                         if (ether_addr_equal((u8 *)&be_mac, eth_header->eth.dst_mac))
3845                                 return 0;
3846                 }
3847                 pr_err("MAC %pM doesn't belong to VF %d, Steering rule rejected\n",
3848                        eth_header->eth.dst_mac, slave);
3849                 return -EINVAL;
3850         }
3851         return 0;
3852 }
3853
3854 /*
3855  * In case of missing eth header, append eth header with a MAC address
3856  * assigned to the VF.
3857  */
3858 static int add_eth_header(struct mlx4_dev *dev, int slave,
3859                           struct mlx4_cmd_mailbox *inbox,
3860                           struct list_head *rlist, int header_id)
3861 {
3862         struct mac_res *res, *tmp;
3863         u8 port;
3864         struct mlx4_net_trans_rule_hw_ctrl *ctrl;
3865         struct mlx4_net_trans_rule_hw_eth *eth_header;
3866         struct mlx4_net_trans_rule_hw_ipv4 *ip_header;
3867         struct mlx4_net_trans_rule_hw_tcp_udp *l4_header;
3868         __be64 be_mac = 0;
3869         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
3870
3871         ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
3872         port = ctrl->port;
3873         eth_header = (struct mlx4_net_trans_rule_hw_eth *)(ctrl + 1);
3874
3875         /* Clear a space in the inbox for eth header */
3876         switch (header_id) {
3877         case MLX4_NET_TRANS_RULE_ID_IPV4:
3878                 ip_header =
3879                         (struct mlx4_net_trans_rule_hw_ipv4 *)(eth_header + 1);
3880                 memmove(ip_header, eth_header,
3881                         sizeof(*ip_header) + sizeof(*l4_header));
3882                 break;
3883         case MLX4_NET_TRANS_RULE_ID_TCP:
3884         case MLX4_NET_TRANS_RULE_ID_UDP:
3885                 l4_header = (struct mlx4_net_trans_rule_hw_tcp_udp *)
3886                             (eth_header + 1);
3887                 memmove(l4_header, eth_header, sizeof(*l4_header));
3888                 break;
3889         default:
3890                 return -EINVAL;
3891         }
3892         list_for_each_entry_safe(res, tmp, rlist, list) {
3893                 if (port == res->port) {
3894                         be_mac = cpu_to_be64(res->mac << 16);
3895                         break;
3896                 }
3897         }
3898         if (!be_mac) {
3899                 pr_err("Failed adding eth header to FS rule, Can't find matching MAC for port %d .\n",
3900                        port);
3901                 return -EINVAL;
3902         }
3903
3904         memset(eth_header, 0, sizeof(*eth_header));
3905         eth_header->size = sizeof(*eth_header) >> 2;
3906         eth_header->id = cpu_to_be16(__sw_id_hw[MLX4_NET_TRANS_RULE_ID_ETH]);
3907         memcpy(eth_header->dst_mac, &be_mac, ETH_ALEN);
3908         memcpy(eth_header->dst_mac_msk, &mac_msk, ETH_ALEN);
3909
3910         return 0;
3911
3912 }
3913
3914 int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
3915                                          struct mlx4_vhcr *vhcr,
3916                                          struct mlx4_cmd_mailbox *inbox,
3917                                          struct mlx4_cmd_mailbox *outbox,
3918                                          struct mlx4_cmd_info *cmd)
3919 {
3920
3921         struct mlx4_priv *priv = mlx4_priv(dev);
3922         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
3923         struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC];
3924         int err;
3925         int qpn;
3926         struct res_qp *rqp;
3927         struct mlx4_net_trans_rule_hw_ctrl *ctrl;
3928         struct _rule_hw  *rule_header;
3929         int header_id;
3930
3931         if (dev->caps.steering_mode !=
3932             MLX4_STEERING_MODE_DEVICE_MANAGED)
3933                 return -EOPNOTSUPP;
3934
3935         ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
3936         ctrl->port = mlx4_slave_convert_port(dev, slave, ctrl->port);
3937         if (ctrl->port <= 0)
3938                 return -EINVAL;
3939         qpn = be32_to_cpu(ctrl->qpn) & 0xffffff;
3940         err = get_res(dev, slave, qpn, RES_QP, &rqp);
3941         if (err) {
3942                 pr_err("Steering rule with qpn 0x%x rejected.\n", qpn);
3943                 return err;
3944         }
3945         rule_header = (struct _rule_hw *)(ctrl + 1);
3946         header_id = map_hw_to_sw_id(be16_to_cpu(rule_header->id));
3947
3948         switch (header_id) {
3949         case MLX4_NET_TRANS_RULE_ID_ETH:
3950                 if (validate_eth_header_mac(slave, rule_header, rlist)) {
3951                         err = -EINVAL;
3952                         goto err_put;
3953                 }
3954                 break;
3955         case MLX4_NET_TRANS_RULE_ID_IB:
3956                 break;
3957         case MLX4_NET_TRANS_RULE_ID_IPV4:
3958         case MLX4_NET_TRANS_RULE_ID_TCP:
3959         case MLX4_NET_TRANS_RULE_ID_UDP:
3960                 pr_warn("Can't attach FS rule without L2 headers, adding L2 header.\n");
3961                 if (add_eth_header(dev, slave, inbox, rlist, header_id)) {
3962                         err = -EINVAL;
3963                         goto err_put;
3964                 }
3965                 vhcr->in_modifier +=
3966                         sizeof(struct mlx4_net_trans_rule_hw_eth) >> 2;
3967                 break;
3968         default:
3969                 pr_err("Corrupted mailbox.\n");
3970                 err = -EINVAL;
3971                 goto err_put;
3972         }
3973
3974         err = mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param,
3975                            vhcr->in_modifier, 0,
3976                            MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
3977                            MLX4_CMD_NATIVE);
3978         if (err)
3979                 goto err_put;
3980
3981         err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, qpn);
3982         if (err) {
3983                 mlx4_err(dev, "Fail to add flow steering resources.\n ");
3984                 /* detach rule*/
3985                 mlx4_cmd(dev, vhcr->out_param, 0, 0,
3986                          MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
3987                          MLX4_CMD_NATIVE);
3988                 goto err_put;
3989         }
3990         atomic_inc(&rqp->ref_count);
3991 err_put:
3992         put_res(dev, slave, qpn, RES_QP);
3993         return err;
3994 }
3995
3996 int mlx4_QP_FLOW_STEERING_DETACH_wrapper(struct mlx4_dev *dev, int slave,
3997                                          struct mlx4_vhcr *vhcr,
3998                                          struct mlx4_cmd_mailbox *inbox,
3999                                          struct mlx4_cmd_mailbox *outbox,
4000                                          struct mlx4_cmd_info *cmd)
4001 {
4002         int err;
4003         struct res_qp *rqp;
4004         struct res_fs_rule *rrule;
4005
4006         if (dev->caps.steering_mode !=
4007             MLX4_STEERING_MODE_DEVICE_MANAGED)
4008                 return -EOPNOTSUPP;
4009
4010         err = get_res(dev, slave, vhcr->in_param, RES_FS_RULE, &rrule);
4011         if (err)
4012                 return err;
4013         /* Release the rule form busy state before removal */
4014         put_res(dev, slave, vhcr->in_param, RES_FS_RULE);
4015         err = get_res(dev, slave, rrule->qpn, RES_QP, &rqp);
4016         if (err)
4017                 return err;
4018
4019         err = rem_res_range(dev, slave, vhcr->in_param, 1, RES_FS_RULE, 0);
4020         if (err) {
4021                 mlx4_err(dev, "Fail to remove flow steering resources.\n ");
4022                 goto out;
4023         }
4024
4025         err = mlx4_cmd(dev, vhcr->in_param, 0, 0,
4026                        MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
4027                        MLX4_CMD_NATIVE);
4028         if (!err)
4029                 atomic_dec(&rqp->ref_count);
4030 out:
4031         put_res(dev, slave, rrule->qpn, RES_QP);
4032         return err;
4033 }
4034
4035 enum {
4036         BUSY_MAX_RETRIES = 10
4037 };
4038
4039 int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave,
4040                                struct mlx4_vhcr *vhcr,
4041                                struct mlx4_cmd_mailbox *inbox,
4042                                struct mlx4_cmd_mailbox *outbox,
4043                                struct mlx4_cmd_info *cmd)
4044 {
4045         int err;
4046         int index = vhcr->in_modifier & 0xffff;
4047
4048         err = get_res(dev, slave, index, RES_COUNTER, NULL);
4049         if (err)
4050                 return err;
4051
4052         err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
4053         put_res(dev, slave, index, RES_COUNTER);
4054         return err;
4055 }
4056
4057 static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp)
4058 {
4059         struct res_gid *rgid;
4060         struct res_gid *tmp;
4061         struct mlx4_qp qp; /* dummy for calling attach/detach */
4062
4063         list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) {
4064                 switch (dev->caps.steering_mode) {
4065                 case MLX4_STEERING_MODE_DEVICE_MANAGED:
4066                         mlx4_flow_detach(dev, rgid->reg_id);
4067                         break;
4068                 case MLX4_STEERING_MODE_B0:
4069                         qp.qpn = rqp->local_qpn;
4070                         (void) mlx4_qp_detach_common(dev, &qp, rgid->gid,
4071                                                      rgid->prot, rgid->steer);
4072                         break;
4073                 }
4074                 list_del(&rgid->list);
4075                 kfree(rgid);
4076         }
4077 }
4078
4079 static int _move_all_busy(struct mlx4_dev *dev, int slave,
4080                           enum mlx4_resource type, int print)
4081 {
4082         struct mlx4_priv *priv = mlx4_priv(dev);
4083         struct mlx4_resource_tracker *tracker =
4084                 &priv->mfunc.master.res_tracker;
4085         struct list_head *rlist = &tracker->slave_list[slave].res_list[type];
4086         struct res_common *r;
4087         struct res_common *tmp;
4088         int busy;
4089
4090         busy = 0;
4091         spin_lock_irq(mlx4_tlock(dev));
4092         list_for_each_entry_safe(r, tmp, rlist, list) {
4093                 if (r->owner == slave) {
4094                         if (!r->removing) {
4095                                 if (r->state == RES_ANY_BUSY) {
4096                                         if (print)
4097                                                 mlx4_dbg(dev,
4098                                                          "%s id 0x%llx is busy\n",
4099                                                           ResourceType(type),
4100                                                           r->res_id);
4101                                         ++busy;
4102                                 } else {
4103                                         r->from_state = r->state;
4104                                         r->state = RES_ANY_BUSY;
4105                                         r->removing = 1;
4106                                 }
4107                         }
4108                 }
4109         }
4110         spin_unlock_irq(mlx4_tlock(dev));
4111
4112         return busy;
4113 }
4114
4115 static int move_all_busy(struct mlx4_dev *dev, int slave,
4116                          enum mlx4_resource type)
4117 {
4118         unsigned long begin;
4119         int busy;
4120
4121         begin = jiffies;
4122         do {
4123                 busy = _move_all_busy(dev, slave, type, 0);
4124                 if (time_after(jiffies, begin + 5 * HZ))
4125                         break;
4126                 if (busy)
4127                         cond_resched();
4128         } while (busy);
4129
4130         if (busy)
4131                 busy = _move_all_busy(dev, slave, type, 1);
4132
4133         return busy;
4134 }
4135 static void rem_slave_qps(struct mlx4_dev *dev, int slave)
4136 {
4137         struct mlx4_priv *priv = mlx4_priv(dev);
4138         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4139         struct list_head *qp_list =
4140                 &tracker->slave_list[slave].res_list[RES_QP];
4141         struct res_qp *qp;
4142         struct res_qp *tmp;
4143         int state;
4144         u64 in_param;
4145         int qpn;
4146         int err;
4147
4148         err = move_all_busy(dev, slave, RES_QP);
4149         if (err)
4150                 mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy"
4151                           "for slave %d\n", slave);
4152
4153         spin_lock_irq(mlx4_tlock(dev));
4154         list_for_each_entry_safe(qp, tmp, qp_list, com.list) {
4155                 spin_unlock_irq(mlx4_tlock(dev));
4156                 if (qp->com.owner == slave) {
4157                         qpn = qp->com.res_id;
4158                         detach_qp(dev, slave, qp);
4159                         state = qp->com.from_state;
4160                         while (state != 0) {
4161                                 switch (state) {
4162                                 case RES_QP_RESERVED:
4163                                         spin_lock_irq(mlx4_tlock(dev));
4164                                         rb_erase(&qp->com.node,
4165                                                  &tracker->res_tree[RES_QP]);
4166                                         list_del(&qp->com.list);
4167                                         spin_unlock_irq(mlx4_tlock(dev));
4168                                         if (!valid_reserved(dev, slave, qpn)) {
4169                                                 __mlx4_qp_release_range(dev, qpn, 1);
4170                                                 mlx4_release_resource(dev, slave,
4171                                                                       RES_QP, 1, 0);
4172                                         }
4173                                         kfree(qp);
4174                                         state = 0;
4175                                         break;
4176                                 case RES_QP_MAPPED:
4177                                         if (!valid_reserved(dev, slave, qpn))
4178                                                 __mlx4_qp_free_icm(dev, qpn);
4179                                         state = RES_QP_RESERVED;
4180                                         break;
4181                                 case RES_QP_HW:
4182                                         in_param = slave;
4183                                         err = mlx4_cmd(dev, in_param,
4184                                                        qp->local_qpn, 2,
4185                                                        MLX4_CMD_2RST_QP,
4186                                                        MLX4_CMD_TIME_CLASS_A,
4187                                                        MLX4_CMD_NATIVE);
4188                                         if (err)
4189                                                 mlx4_dbg(dev, "rem_slave_qps: failed"
4190                                                          " to move slave %d qpn %d to"
4191                                                          " reset\n", slave,
4192                                                          qp->local_qpn);
4193                                         atomic_dec(&qp->rcq->ref_count);
4194                                         atomic_dec(&qp->scq->ref_count);
4195                                         atomic_dec(&qp->mtt->ref_count);
4196                                         if (qp->srq)
4197                                                 atomic_dec(&qp->srq->ref_count);
4198                                         state = RES_QP_MAPPED;
4199                                         break;
4200                                 default:
4201                                         state = 0;
4202                                 }
4203                         }
4204                 }
4205                 spin_lock_irq(mlx4_tlock(dev));
4206         }
4207         spin_unlock_irq(mlx4_tlock(dev));
4208 }
4209
4210 static void rem_slave_srqs(struct mlx4_dev *dev, int slave)
4211 {
4212         struct mlx4_priv *priv = mlx4_priv(dev);
4213         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4214         struct list_head *srq_list =
4215                 &tracker->slave_list[slave].res_list[RES_SRQ];
4216         struct res_srq *srq;
4217         struct res_srq *tmp;
4218         int state;
4219         u64 in_param;
4220         LIST_HEAD(tlist);
4221         int srqn;
4222         int err;
4223
4224         err = move_all_busy(dev, slave, RES_SRQ);
4225         if (err)
4226                 mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs to "
4227                           "busy for slave %d\n", slave);
4228
4229         spin_lock_irq(mlx4_tlock(dev));
4230         list_for_each_entry_safe(srq, tmp, srq_list, com.list) {
4231                 spin_unlock_irq(mlx4_tlock(dev));
4232                 if (srq->com.owner == slave) {
4233                         srqn = srq->com.res_id;
4234                         state = srq->com.from_state;
4235                         while (state != 0) {
4236                                 switch (state) {
4237                                 case RES_SRQ_ALLOCATED:
4238                                         __mlx4_srq_free_icm(dev, srqn);
4239                                         spin_lock_irq(mlx4_tlock(dev));
4240                                         rb_erase(&srq->com.node,
4241                                                  &tracker->res_tree[RES_SRQ]);
4242                                         list_del(&srq->com.list);
4243                                         spin_unlock_irq(mlx4_tlock(dev));
4244                                         mlx4_release_resource(dev, slave,
4245                                                               RES_SRQ, 1, 0);
4246                                         kfree(srq);
4247                                         state = 0;
4248                                         break;
4249
4250                                 case RES_SRQ_HW:
4251                                         in_param = slave;
4252                                         err = mlx4_cmd(dev, in_param, srqn, 1,
4253                                                        MLX4_CMD_HW2SW_SRQ,
4254                                                        MLX4_CMD_TIME_CLASS_A,
4255                                                        MLX4_CMD_NATIVE);
4256                                         if (err)
4257                                                 mlx4_dbg(dev, "rem_slave_srqs: failed"
4258                                                          " to move slave %d srq %d to"
4259                                                          " SW ownership\n",
4260                                                          slave, srqn);
4261
4262                                         atomic_dec(&srq->mtt->ref_count);
4263                                         if (srq->cq)
4264                                                 atomic_dec(&srq->cq->ref_count);
4265                                         state = RES_SRQ_ALLOCATED;
4266                                         break;
4267
4268                                 default:
4269                                         state = 0;
4270                                 }
4271                         }
4272                 }
4273                 spin_lock_irq(mlx4_tlock(dev));
4274         }
4275         spin_unlock_irq(mlx4_tlock(dev));
4276 }
4277
4278 static void rem_slave_cqs(struct mlx4_dev *dev, int slave)
4279 {
4280         struct mlx4_priv *priv = mlx4_priv(dev);
4281         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4282         struct list_head *cq_list =
4283                 &tracker->slave_list[slave].res_list[RES_CQ];
4284         struct res_cq *cq;
4285         struct res_cq *tmp;
4286         int state;
4287         u64 in_param;
4288         LIST_HEAD(tlist);
4289         int cqn;
4290         int err;
4291
4292         err = move_all_busy(dev, slave, RES_CQ);
4293         if (err)
4294                 mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs to "
4295                           "busy for slave %d\n", slave);
4296
4297         spin_lock_irq(mlx4_tlock(dev));
4298         list_for_each_entry_safe(cq, tmp, cq_list, com.list) {
4299                 spin_unlock_irq(mlx4_tlock(dev));
4300                 if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) {
4301                         cqn = cq->com.res_id;
4302                         state = cq->com.from_state;
4303                         while (state != 0) {
4304                                 switch (state) {
4305                                 case RES_CQ_ALLOCATED:
4306                                         __mlx4_cq_free_icm(dev, cqn);
4307                                         spin_lock_irq(mlx4_tlock(dev));
4308                                         rb_erase(&cq->com.node,
4309                                                  &tracker->res_tree[RES_CQ]);
4310                                         list_del(&cq->com.list);
4311                                         spin_unlock_irq(mlx4_tlock(dev));
4312                                         mlx4_release_resource(dev, slave,
4313                                                               RES_CQ, 1, 0);
4314                                         kfree(cq);
4315                                         state = 0;
4316                                         break;
4317
4318                                 case RES_CQ_HW:
4319                                         in_param = slave;
4320                                         err = mlx4_cmd(dev, in_param, cqn, 1,
4321                                                        MLX4_CMD_HW2SW_CQ,
4322                                                        MLX4_CMD_TIME_CLASS_A,
4323                                                        MLX4_CMD_NATIVE);
4324                                         if (err)
4325                                                 mlx4_dbg(dev, "rem_slave_cqs: failed"
4326                                                          " to move slave %d cq %d to"
4327                                                          " SW ownership\n",
4328                                                          slave, cqn);
4329                                         atomic_dec(&cq->mtt->ref_count);
4330                                         state = RES_CQ_ALLOCATED;
4331                                         break;
4332
4333                                 default:
4334                                         state = 0;
4335                                 }
4336                         }
4337                 }
4338                 spin_lock_irq(mlx4_tlock(dev));
4339         }
4340         spin_unlock_irq(mlx4_tlock(dev));
4341 }
4342
4343 static void rem_slave_mrs(struct mlx4_dev *dev, int slave)
4344 {
4345         struct mlx4_priv *priv = mlx4_priv(dev);
4346         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4347         struct list_head *mpt_list =
4348                 &tracker->slave_list[slave].res_list[RES_MPT];
4349         struct res_mpt *mpt;
4350         struct res_mpt *tmp;
4351         int state;
4352         u64 in_param;
4353         LIST_HEAD(tlist);
4354         int mptn;
4355         int err;
4356
4357         err = move_all_busy(dev, slave, RES_MPT);
4358         if (err)
4359                 mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts to "
4360                           "busy for slave %d\n", slave);
4361
4362         spin_lock_irq(mlx4_tlock(dev));
4363         list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) {
4364                 spin_unlock_irq(mlx4_tlock(dev));
4365                 if (mpt->com.owner == slave) {
4366                         mptn = mpt->com.res_id;
4367                         state = mpt->com.from_state;
4368                         while (state != 0) {
4369                                 switch (state) {
4370                                 case RES_MPT_RESERVED:
4371                                         __mlx4_mpt_release(dev, mpt->key);
4372                                         spin_lock_irq(mlx4_tlock(dev));
4373                                         rb_erase(&mpt->com.node,
4374                                                  &tracker->res_tree[RES_MPT]);
4375                                         list_del(&mpt->com.list);
4376                                         spin_unlock_irq(mlx4_tlock(dev));
4377                                         mlx4_release_resource(dev, slave,
4378                                                               RES_MPT, 1, 0);
4379                                         kfree(mpt);
4380                                         state = 0;
4381                                         break;
4382
4383                                 case RES_MPT_MAPPED:
4384                                         __mlx4_mpt_free_icm(dev, mpt->key);
4385                                         state = RES_MPT_RESERVED;
4386                                         break;
4387
4388                                 case RES_MPT_HW:
4389                                         in_param = slave;
4390                                         err = mlx4_cmd(dev, in_param, mptn, 0,
4391                                                      MLX4_CMD_HW2SW_MPT,
4392                                                      MLX4_CMD_TIME_CLASS_A,
4393                                                      MLX4_CMD_NATIVE);
4394                                         if (err)
4395                                                 mlx4_dbg(dev, "rem_slave_mrs: failed"
4396                                                          " to move slave %d mpt %d to"
4397                                                          " SW ownership\n",
4398                                                          slave, mptn);
4399                                         if (mpt->mtt)
4400                                                 atomic_dec(&mpt->mtt->ref_count);
4401                                         state = RES_MPT_MAPPED;
4402                                         break;
4403                                 default:
4404                                         state = 0;
4405                                 }
4406                         }
4407                 }
4408                 spin_lock_irq(mlx4_tlock(dev));
4409         }
4410         spin_unlock_irq(mlx4_tlock(dev));
4411 }
4412
4413 static void rem_slave_mtts(struct mlx4_dev *dev, int slave)
4414 {
4415         struct mlx4_priv *priv = mlx4_priv(dev);
4416         struct mlx4_resource_tracker *tracker =
4417                 &priv->mfunc.master.res_tracker;
4418         struct list_head *mtt_list =
4419                 &tracker->slave_list[slave].res_list[RES_MTT];
4420         struct res_mtt *mtt;
4421         struct res_mtt *tmp;
4422         int state;
4423         LIST_HEAD(tlist);
4424         int base;
4425         int err;
4426
4427         err = move_all_busy(dev, slave, RES_MTT);
4428         if (err)
4429                 mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts to "
4430                           "busy for slave %d\n", slave);
4431
4432         spin_lock_irq(mlx4_tlock(dev));
4433         list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) {
4434                 spin_unlock_irq(mlx4_tlock(dev));
4435                 if (mtt->com.owner == slave) {
4436                         base = mtt->com.res_id;
4437                         state = mtt->com.from_state;
4438                         while (state != 0) {
4439                                 switch (state) {
4440                                 case RES_MTT_ALLOCATED:
4441                                         __mlx4_free_mtt_range(dev, base,
4442                                                               mtt->order);
4443                                         spin_lock_irq(mlx4_tlock(dev));
4444                                         rb_erase(&mtt->com.node,
4445                                                  &tracker->res_tree[RES_MTT]);
4446                                         list_del(&mtt->com.list);
4447                                         spin_unlock_irq(mlx4_tlock(dev));
4448                                         mlx4_release_resource(dev, slave, RES_MTT,
4449                                                               1 << mtt->order, 0);
4450                                         kfree(mtt);
4451                                         state = 0;
4452                                         break;
4453
4454                                 default:
4455                                         state = 0;
4456                                 }
4457                         }
4458                 }
4459                 spin_lock_irq(mlx4_tlock(dev));
4460         }
4461         spin_unlock_irq(mlx4_tlock(dev));
4462 }
4463
4464 static void rem_slave_fs_rule(struct mlx4_dev *dev, int slave)
4465 {
4466         struct mlx4_priv *priv = mlx4_priv(dev);
4467         struct mlx4_resource_tracker *tracker =
4468                 &priv->mfunc.master.res_tracker;
4469         struct list_head *fs_rule_list =
4470                 &tracker->slave_list[slave].res_list[RES_FS_RULE];
4471         struct res_fs_rule *fs_rule;
4472         struct res_fs_rule *tmp;
4473         int state;
4474         u64 base;
4475         int err;
4476
4477         err = move_all_busy(dev, slave, RES_FS_RULE);
4478         if (err)
4479                 mlx4_warn(dev, "rem_slave_fs_rule: Could not move all mtts to busy for slave %d\n",
4480                           slave);
4481
4482         spin_lock_irq(mlx4_tlock(dev));
4483         list_for_each_entry_safe(fs_rule, tmp, fs_rule_list, com.list) {
4484                 spin_unlock_irq(mlx4_tlock(dev));
4485                 if (fs_rule->com.owner == slave) {
4486                         base = fs_rule->com.res_id;
4487                         state = fs_rule->com.from_state;
4488                         while (state != 0) {
4489                                 switch (state) {
4490                                 case RES_FS_RULE_ALLOCATED:
4491                                         /* detach rule */
4492                                         err = mlx4_cmd(dev, base, 0, 0,
4493                                                        MLX4_QP_FLOW_STEERING_DETACH,
4494                                                        MLX4_CMD_TIME_CLASS_A,
4495                                                        MLX4_CMD_NATIVE);
4496
4497                                         spin_lock_irq(mlx4_tlock(dev));
4498                                         rb_erase(&fs_rule->com.node,
4499                                                  &tracker->res_tree[RES_FS_RULE]);
4500                                         list_del(&fs_rule->com.list);
4501                                         spin_unlock_irq(mlx4_tlock(dev));
4502                                         kfree(fs_rule);
4503                                         state = 0;
4504                                         break;
4505
4506                                 default:
4507                                         state = 0;
4508                                 }
4509                         }
4510                 }
4511                 spin_lock_irq(mlx4_tlock(dev));
4512         }
4513         spin_unlock_irq(mlx4_tlock(dev));
4514 }
4515
4516 static void rem_slave_eqs(struct mlx4_dev *dev, int slave)
4517 {
4518         struct mlx4_priv *priv = mlx4_priv(dev);
4519         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4520         struct list_head *eq_list =
4521                 &tracker->slave_list[slave].res_list[RES_EQ];
4522         struct res_eq *eq;
4523         struct res_eq *tmp;
4524         int err;
4525         int state;
4526         LIST_HEAD(tlist);
4527         int eqn;
4528         struct mlx4_cmd_mailbox *mailbox;
4529
4530         err = move_all_busy(dev, slave, RES_EQ);
4531         if (err)
4532                 mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs to "
4533                           "busy for slave %d\n", slave);
4534
4535         spin_lock_irq(mlx4_tlock(dev));
4536         list_for_each_entry_safe(eq, tmp, eq_list, com.list) {
4537                 spin_unlock_irq(mlx4_tlock(dev));
4538                 if (eq->com.owner == slave) {
4539                         eqn = eq->com.res_id;
4540                         state = eq->com.from_state;
4541                         while (state != 0) {
4542                                 switch (state) {
4543                                 case RES_EQ_RESERVED:
4544                                         spin_lock_irq(mlx4_tlock(dev));
4545                                         rb_erase(&eq->com.node,
4546                                                  &tracker->res_tree[RES_EQ]);
4547                                         list_del(&eq->com.list);
4548                                         spin_unlock_irq(mlx4_tlock(dev));
4549                                         kfree(eq);
4550                                         state = 0;
4551                                         break;
4552
4553                                 case RES_EQ_HW:
4554                                         mailbox = mlx4_alloc_cmd_mailbox(dev);
4555                                         if (IS_ERR(mailbox)) {
4556                                                 cond_resched();
4557                                                 continue;
4558                                         }
4559                                         err = mlx4_cmd_box(dev, slave, 0,
4560                                                            eqn & 0xff, 0,
4561                                                            MLX4_CMD_HW2SW_EQ,
4562                                                            MLX4_CMD_TIME_CLASS_A,
4563                                                            MLX4_CMD_NATIVE);
4564                                         if (err)
4565                                                 mlx4_dbg(dev, "rem_slave_eqs: failed"
4566                                                          " to move slave %d eqs %d to"
4567                                                          " SW ownership\n", slave, eqn);
4568                                         mlx4_free_cmd_mailbox(dev, mailbox);
4569                                         atomic_dec(&eq->mtt->ref_count);
4570                                         state = RES_EQ_RESERVED;
4571                                         break;
4572
4573                                 default:
4574                                         state = 0;
4575                                 }
4576                         }
4577                 }
4578                 spin_lock_irq(mlx4_tlock(dev));
4579         }
4580         spin_unlock_irq(mlx4_tlock(dev));
4581 }
4582
4583 static void rem_slave_counters(struct mlx4_dev *dev, int slave)
4584 {
4585         struct mlx4_priv *priv = mlx4_priv(dev);
4586         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4587         struct list_head *counter_list =
4588                 &tracker->slave_list[slave].res_list[RES_COUNTER];
4589         struct res_counter *counter;
4590         struct res_counter *tmp;
4591         int err;
4592         int index;
4593
4594         err = move_all_busy(dev, slave, RES_COUNTER);
4595         if (err)
4596                 mlx4_warn(dev, "rem_slave_counters: Could not move all counters to "
4597                           "busy for slave %d\n", slave);
4598
4599         spin_lock_irq(mlx4_tlock(dev));
4600         list_for_each_entry_safe(counter, tmp, counter_list, com.list) {
4601                 if (counter->com.owner == slave) {
4602                         index = counter->com.res_id;
4603                         rb_erase(&counter->com.node,
4604                                  &tracker->res_tree[RES_COUNTER]);
4605                         list_del(&counter->com.list);
4606                         kfree(counter);
4607                         __mlx4_counter_free(dev, index);
4608                         mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
4609                 }
4610         }
4611         spin_unlock_irq(mlx4_tlock(dev));
4612 }
4613
4614 static void rem_slave_xrcdns(struct mlx4_dev *dev, int slave)
4615 {
4616         struct mlx4_priv *priv = mlx4_priv(dev);
4617         struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4618         struct list_head *xrcdn_list =
4619                 &tracker->slave_list[slave].res_list[RES_XRCD];
4620         struct res_xrcdn *xrcd;
4621         struct res_xrcdn *tmp;
4622         int err;
4623         int xrcdn;
4624
4625         err = move_all_busy(dev, slave, RES_XRCD);
4626         if (err)
4627                 mlx4_warn(dev, "rem_slave_xrcdns: Could not move all xrcdns to "
4628                           "busy for slave %d\n", slave);
4629
4630         spin_lock_irq(mlx4_tlock(dev));
4631         list_for_each_entry_safe(xrcd, tmp, xrcdn_list, com.list) {
4632                 if (xrcd->com.owner == slave) {
4633                         xrcdn = xrcd->com.res_id;
4634                         rb_erase(&xrcd->com.node, &tracker->res_tree[RES_XRCD]);
4635                         list_del(&xrcd->com.list);
4636                         kfree(xrcd);
4637                         __mlx4_xrcd_free(dev, xrcdn);
4638                 }
4639         }
4640         spin_unlock_irq(mlx4_tlock(dev));
4641 }
4642
4643 void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave)
4644 {
4645         struct mlx4_priv *priv = mlx4_priv(dev);
4646
4647         mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
4648         rem_slave_vlans(dev, slave);
4649         rem_slave_macs(dev, slave);
4650         rem_slave_fs_rule(dev, slave);
4651         rem_slave_qps(dev, slave);
4652         rem_slave_srqs(dev, slave);
4653         rem_slave_cqs(dev, slave);
4654         rem_slave_mrs(dev, slave);
4655         rem_slave_eqs(dev, slave);
4656         rem_slave_mtts(dev, slave);
4657         rem_slave_counters(dev, slave);
4658         rem_slave_xrcdns(dev, slave);
4659         mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
4660 }
4661
4662 void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work)
4663 {
4664         struct mlx4_vf_immed_vlan_work *work =
4665                 container_of(_work, struct mlx4_vf_immed_vlan_work, work);
4666         struct mlx4_cmd_mailbox *mailbox;
4667         struct mlx4_update_qp_context *upd_context;
4668         struct mlx4_dev *dev = &work->priv->dev;
4669         struct mlx4_resource_tracker *tracker =
4670                 &work->priv->mfunc.master.res_tracker;
4671         struct list_head *qp_list =
4672                 &tracker->slave_list[work->slave].res_list[RES_QP];
4673         struct res_qp *qp;
4674         struct res_qp *tmp;
4675         u64 qp_path_mask_vlan_ctrl =
4676                        ((1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED) |
4677                        (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P) |
4678                        (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED) |
4679                        (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED) |
4680                        (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P) |
4681                        (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED));
4682
4683         u64 qp_path_mask = ((1ULL << MLX4_UPD_QP_PATH_MASK_VLAN_INDEX) |
4684                        (1ULL << MLX4_UPD_QP_PATH_MASK_FVL) |
4685                        (1ULL << MLX4_UPD_QP_PATH_MASK_CV) |
4686                        (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN) |
4687                        (1ULL << MLX4_UPD_QP_PATH_MASK_FEUP) |
4688                        (1ULL << MLX4_UPD_QP_PATH_MASK_FVL_RX) |
4689                        (1ULL << MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE));
4690
4691         int err;
4692         int port, errors = 0;
4693         u8 vlan_control;
4694
4695         if (mlx4_is_slave(dev)) {
4696                 mlx4_warn(dev, "Trying to update-qp in slave %d\n",
4697                           work->slave);
4698                 goto out;
4699         }
4700
4701         mailbox = mlx4_alloc_cmd_mailbox(dev);
4702         if (IS_ERR(mailbox))
4703                 goto out;
4704         if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE) /* block all */
4705                 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4706                         MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED |
4707                         MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED |
4708                         MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
4709                         MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED |
4710                         MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
4711         else if (!work->vlan_id)
4712                 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4713                         MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
4714         else
4715                 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4716                         MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
4717                         MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
4718
4719         upd_context = mailbox->buf;
4720         upd_context->qp_mask = cpu_to_be64(MLX4_UPD_QP_MASK_VSD);
4721
4722         spin_lock_irq(mlx4_tlock(dev));
4723         list_for_each_entry_safe(qp, tmp, qp_list, com.list) {
4724                 spin_unlock_irq(mlx4_tlock(dev));
4725                 if (qp->com.owner == work->slave) {
4726                         if (qp->com.from_state != RES_QP_HW ||
4727                             !qp->sched_queue ||  /* no INIT2RTR trans yet */
4728                             mlx4_is_qp_reserved(dev, qp->local_qpn) ||
4729                             qp->qpc_flags & (1 << MLX4_RSS_QPC_FLAG_OFFSET)) {
4730                                 spin_lock_irq(mlx4_tlock(dev));
4731                                 continue;
4732                         }
4733                         port = (qp->sched_queue >> 6 & 1) + 1;
4734                         if (port != work->port) {
4735                                 spin_lock_irq(mlx4_tlock(dev));
4736                                 continue;
4737                         }
4738                         if (MLX4_QP_ST_RC == ((qp->qpc_flags >> 16) & 0xff))
4739                                 upd_context->primary_addr_path_mask = cpu_to_be64(qp_path_mask);
4740                         else
4741                                 upd_context->primary_addr_path_mask =
4742                                         cpu_to_be64(qp_path_mask | qp_path_mask_vlan_ctrl);
4743                         if (work->vlan_id == MLX4_VGT) {
4744                                 upd_context->qp_context.param3 = qp->param3;
4745                                 upd_context->qp_context.pri_path.vlan_control = qp->vlan_control;
4746                                 upd_context->qp_context.pri_path.fvl_rx = qp->fvl_rx;
4747                                 upd_context->qp_context.pri_path.vlan_index = qp->vlan_index;
4748                                 upd_context->qp_context.pri_path.fl = qp->pri_path_fl;
4749                                 upd_context->qp_context.pri_path.feup = qp->feup;
4750                                 upd_context->qp_context.pri_path.sched_queue =
4751                                         qp->sched_queue;
4752                         } else {
4753                                 upd_context->qp_context.param3 = qp->param3 & ~cpu_to_be32(MLX4_STRIP_VLAN);
4754                                 upd_context->qp_context.pri_path.vlan_control = vlan_control;
4755                                 upd_context->qp_context.pri_path.vlan_index = work->vlan_ix;
4756                                 upd_context->qp_context.pri_path.fvl_rx =
4757                                         qp->fvl_rx | MLX4_FVL_RX_FORCE_ETH_VLAN;
4758                                 upd_context->qp_context.pri_path.fl =
4759                                         qp->pri_path_fl | MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
4760                                 upd_context->qp_context.pri_path.feup =
4761                                         qp->feup | MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
4762                                 upd_context->qp_context.pri_path.sched_queue =
4763                                         qp->sched_queue & 0xC7;
4764                                 upd_context->qp_context.pri_path.sched_queue |=
4765                                         ((work->qos & 0x7) << 3);
4766                         }
4767
4768                         err = mlx4_cmd(dev, mailbox->dma,
4769                                        qp->local_qpn & 0xffffff,
4770                                        0, MLX4_CMD_UPDATE_QP,
4771                                        MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
4772                         if (err) {
4773                                 mlx4_info(dev, "UPDATE_QP failed for slave %d, "
4774                                           "port %d, qpn %d (%d)\n",
4775                                           work->slave, port, qp->local_qpn,
4776                                           err);
4777                                 errors++;
4778                         }
4779                 }
4780                 spin_lock_irq(mlx4_tlock(dev));
4781         }
4782         spin_unlock_irq(mlx4_tlock(dev));
4783         mlx4_free_cmd_mailbox(dev, mailbox);
4784
4785         if (errors)
4786                 mlx4_err(dev, "%d UPDATE_QP failures for slave %d, port %d\n",
4787                          errors, work->slave, work->port);
4788
4789         /* unregister previous vlan_id if needed and we had no errors
4790          * while updating the QPs
4791          */
4792         if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN && !errors &&
4793             NO_INDX != work->orig_vlan_ix)
4794                 __mlx4_unregister_vlan(&work->priv->dev, work->port,
4795                                        work->orig_vlan_id);
4796 out:
4797         kfree(work);
4798         return;
4799 }