2 * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 #include <linux/kernel.h>
37 #include <linux/sched.h>
38 #include <rdma/ib_verbs.h>
39 #include <rdma/ib_smi.h>
40 #include <linux/mlx5/driver.h>
41 #include <linux/mlx5/cq.h>
42 #include <linux/mlx5/qp.h>
43 #include <linux/mlx5/srq.h>
44 #include <linux/types.h>
45 #include <linux/mlx5/transobj.h>
46 #include <rdma/ib_user_verbs.h>
47 #include <rdma/mlx5-abi.h>
49 #define mlx5_ib_dbg(dev, format, arg...) \
50 pr_debug("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__, \
51 __LINE__, current->pid, ##arg)
53 #define mlx5_ib_err(dev, format, arg...) \
54 pr_err("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__, \
55 __LINE__, current->pid, ##arg)
57 #define mlx5_ib_warn(dev, format, arg...) \
58 pr_warn("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__, \
59 __LINE__, current->pid, ##arg)
61 #define field_avail(type, fld, sz) (offsetof(type, fld) + \
62 sizeof(((type *)0)->fld) <= (sz))
63 #define MLX5_IB_DEFAULT_UIDX 0xffffff
64 #define MLX5_USER_ASSIGNED_UIDX_MASK __mlx5_mask(qpc, user_index)
66 #define MLX5_MKEY_PAGE_SHIFT_MASK __mlx5_mask(mkc, log_page_size)
69 MLX5_IB_MMAP_CMD_SHIFT = 8,
70 MLX5_IB_MMAP_CMD_MASK = 0xff,
73 enum mlx5_ib_mmap_cmd {
74 MLX5_IB_MMAP_REGULAR_PAGE = 0,
75 MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES = 1,
76 MLX5_IB_MMAP_WC_PAGE = 2,
77 MLX5_IB_MMAP_NC_PAGE = 3,
78 /* 5 is chosen in order to be compatible with old versions of libmlx5 */
79 MLX5_IB_MMAP_CORE_CLOCK = 5,
83 MLX5_RES_SCAT_DATA32_CQE = 0x1,
84 MLX5_RES_SCAT_DATA64_CQE = 0x2,
85 MLX5_REQ_SCAT_DATA32_CQE = 0x11,
86 MLX5_REQ_SCAT_DATA64_CQE = 0x22,
89 enum mlx5_ib_latency_class {
90 MLX5_IB_LATENCY_CLASS_LOW,
91 MLX5_IB_LATENCY_CLASS_MEDIUM,
92 MLX5_IB_LATENCY_CLASS_HIGH,
95 enum mlx5_ib_mad_ifc_flags {
96 MLX5_MAD_IFC_IGNORE_MKEY = 1,
97 MLX5_MAD_IFC_IGNORE_BKEY = 2,
98 MLX5_MAD_IFC_NET_VIEW = 4,
102 MLX5_CROSS_CHANNEL_BFREG = 0,
111 MLX5_TM_MAX_RNDV_MSG_SIZE = 64,
115 struct mlx5_ib_vma_private_data {
116 struct list_head list;
117 struct vm_area_struct *vma;
120 struct mlx5_ib_ucontext {
121 struct ib_ucontext ibucontext;
122 struct list_head db_page_list;
124 /* protect doorbell record alloc/free
126 struct mutex db_page_mutex;
127 struct mlx5_bfreg_info bfregi;
129 /* Transport Domain number */
131 struct list_head vma_private_list;
133 unsigned long upd_xlt_page;
134 /* protect ODP/KSM */
135 struct mutex upd_xlt_page_mutex;
139 static inline struct mlx5_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
141 return container_of(ibucontext, struct mlx5_ib_ucontext, ibucontext);
149 #define MLX5_IB_FLOW_MCAST_PRIO (MLX5_BY_PASS_NUM_PRIOS - 1)
150 #define MLX5_IB_FLOW_LAST_PRIO (MLX5_BY_PASS_NUM_REGULAR_PRIOS - 1)
151 #if (MLX5_IB_FLOW_LAST_PRIO <= 0)
152 #error "Invalid number of bypass priorities"
154 #define MLX5_IB_FLOW_LEFTOVERS_PRIO (MLX5_IB_FLOW_MCAST_PRIO + 1)
156 #define MLX5_IB_NUM_FLOW_FT (MLX5_IB_FLOW_LEFTOVERS_PRIO + 1)
157 #define MLX5_IB_NUM_SNIFFER_FTS 2
158 struct mlx5_ib_flow_prio {
159 struct mlx5_flow_table *flow_table;
160 unsigned int refcount;
163 struct mlx5_ib_flow_handler {
164 struct list_head list;
165 struct ib_flow ibflow;
166 struct mlx5_ib_flow_prio *prio;
167 struct mlx5_flow_handle *rule;
170 struct mlx5_ib_flow_db {
171 struct mlx5_ib_flow_prio prios[MLX5_IB_NUM_FLOW_FT];
172 struct mlx5_ib_flow_prio sniffer[MLX5_IB_NUM_SNIFFER_FTS];
173 struct mlx5_flow_table *lag_demux_ft;
174 /* Protect flow steering bypass flow tables
175 * when add/del flow rules.
176 * only single add/removal of flow steering rule could be done
182 /* Use macros here so that don't have to duplicate
183 * enum ib_send_flags and enum ib_qp_type for low-level driver
186 #define MLX5_IB_SEND_UMR_ENABLE_MR (IB_SEND_RESERVED_START << 0)
187 #define MLX5_IB_SEND_UMR_DISABLE_MR (IB_SEND_RESERVED_START << 1)
188 #define MLX5_IB_SEND_UMR_FAIL_IF_FREE (IB_SEND_RESERVED_START << 2)
189 #define MLX5_IB_SEND_UMR_UPDATE_XLT (IB_SEND_RESERVED_START << 3)
190 #define MLX5_IB_SEND_UMR_UPDATE_TRANSLATION (IB_SEND_RESERVED_START << 4)
191 #define MLX5_IB_SEND_UMR_UPDATE_PD_ACCESS IB_SEND_RESERVED_END
193 #define MLX5_IB_QPT_REG_UMR IB_QPT_RESERVED1
195 * IB_QPT_GSI creates the software wrapper around GSI, and MLX5_IB_QPT_HW_GSI
196 * creates the actual hardware QP.
198 #define MLX5_IB_QPT_HW_GSI IB_QPT_RESERVED2
199 #define MLX5_IB_WR_UMR IB_WR_RESERVED1
201 #define MLX5_IB_UMR_OCTOWORD 16
202 #define MLX5_IB_UMR_XLT_ALIGNMENT 64
204 #define MLX5_IB_UPD_XLT_ZAP BIT(0)
205 #define MLX5_IB_UPD_XLT_ENABLE BIT(1)
206 #define MLX5_IB_UPD_XLT_ATOMIC BIT(2)
207 #define MLX5_IB_UPD_XLT_ADDR BIT(3)
208 #define MLX5_IB_UPD_XLT_PD BIT(4)
209 #define MLX5_IB_UPD_XLT_ACCESS BIT(5)
210 #define MLX5_IB_UPD_XLT_INDIRECT BIT(6)
212 /* Private QP creation flags to be passed in ib_qp_init_attr.create_flags.
214 * These flags are intended for internal use by the mlx5_ib driver, and they
215 * rely on the range reserved for that use in the ib_qp_create_flags enum.
218 /* Create a UD QP whose source QP number is 1 */
219 static inline enum ib_qp_create_flags mlx5_ib_create_qp_sqpn_qp1(void)
221 return IB_QP_CREATE_RESERVED_START;
229 enum mlx5_ib_rq_flags {
230 MLX5_IB_RQ_CVLAN_STRIPPING = 1 << 0,
236 struct wr_list *w_list;
240 /* serialize post to the work queue
255 enum mlx5_ib_wq_flags {
256 MLX5_IB_WQ_FLAGS_DELAY_DROP = 0x1,
261 struct mlx5_core_qp core_qp;
267 struct ib_umem *umem;
269 unsigned int page_shift;
276 u32 create_flags; /* Use enum mlx5_ib_wq_flags */
290 struct mlx5_ib_rwq_ind_table {
291 struct ib_rwq_ind_table ib_rwq_ind_tbl;
295 struct mlx5_ib_ubuffer {
296 struct ib_umem *umem;
301 struct mlx5_ib_qp_base {
302 struct mlx5_ib_qp *container_mibqp;
303 struct mlx5_core_qp mqp;
304 struct mlx5_ib_ubuffer ubuffer;
307 struct mlx5_ib_qp_trans {
308 struct mlx5_ib_qp_base base;
315 struct mlx5_ib_rss_qp {
320 struct mlx5_ib_qp_base base;
321 struct mlx5_ib_wq *rq;
322 struct mlx5_ib_ubuffer ubuffer;
323 struct mlx5_db *doorbell;
330 struct mlx5_ib_qp_base base;
331 struct mlx5_ib_wq *sq;
332 struct mlx5_ib_ubuffer ubuffer;
333 struct mlx5_db *doorbell;
338 struct mlx5_ib_raw_packet_qp {
339 struct mlx5_ib_sq sq;
340 struct mlx5_ib_rq rq;
345 unsigned long offset;
346 struct mlx5_sq_bfreg *bfreg;
352 struct mlx5_ib_qp_trans trans_qp;
353 struct mlx5_ib_raw_packet_qp raw_packet_qp;
354 struct mlx5_ib_rss_qp rss_qp;
359 struct mlx5_ib_wq rq;
363 struct mlx5_ib_wq sq;
365 /* serialize qp state modifications
377 /* only for user space QPs. For kernel
378 * we have it from the bf object
384 /* Store signature errors */
387 struct list_head qps_list;
388 struct list_head cq_recv_list;
389 struct list_head cq_send_list;
394 struct mlx5_ib_cq_buf {
396 struct ib_umem *umem;
401 enum mlx5_ib_qp_flags {
402 MLX5_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
403 MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
404 MLX5_IB_QP_CROSS_CHANNEL = IB_QP_CREATE_CROSS_CHANNEL,
405 MLX5_IB_QP_MANAGED_SEND = IB_QP_CREATE_MANAGED_SEND,
406 MLX5_IB_QP_MANAGED_RECV = IB_QP_CREATE_MANAGED_RECV,
407 MLX5_IB_QP_SIGNATURE_HANDLING = 1 << 5,
408 /* QP uses 1 as its source QP number */
409 MLX5_IB_QP_SQPN_QP1 = 1 << 6,
410 MLX5_IB_QP_CAP_SCATTER_FCS = 1 << 7,
411 MLX5_IB_QP_RSS = 1 << 8,
412 MLX5_IB_QP_CVLAN_STRIPPING = 1 << 9,
413 MLX5_IB_QP_UNDERLAY = 1 << 10,
417 struct ib_send_wr wr;
421 unsigned int page_shift;
422 unsigned int xlt_size;
428 static inline struct mlx5_umr_wr *umr_wr(struct ib_send_wr *wr)
430 return container_of(wr, struct mlx5_umr_wr, wr);
433 struct mlx5_shared_mr_info {
435 struct ib_umem *umem;
440 struct mlx5_core_cq mcq;
441 struct mlx5_ib_cq_buf buf;
444 /* serialize access to the CQ
450 struct mutex resize_mutex;
451 struct mlx5_ib_cq_buf *resize_buf;
452 struct ib_umem *resize_umem;
454 struct list_head list_send_qp;
455 struct list_head list_recv_qp;
457 struct list_head wc_list;
458 enum ib_cq_notify_flags notify_flags;
459 struct work_struct notify_work;
464 struct list_head list;
469 struct mlx5_core_srq msrq;
473 /* protect SRQ hanlding
479 struct ib_umem *umem;
480 /* serialize arming a SRQ
486 struct mlx5_ib_xrcd {
487 struct ib_xrcd ibxrcd;
491 enum mlx5_ib_mtt_access_flags {
492 MLX5_IB_MTT_READ = (1 << 0),
493 MLX5_IB_MTT_WRITE = (1 << 1),
496 #define MLX5_IB_MTT_PRESENT (MLX5_IB_MTT_READ | MLX5_IB_MTT_WRITE)
506 struct mlx5_core_mkey mmkey;
507 struct ib_umem *umem;
508 struct mlx5_shared_mr_info *smr_info;
509 struct list_head list;
511 bool allocated_from_cache;
513 struct mlx5_ib_dev *dev;
514 u32 out[MLX5_ST_SZ_DW(create_mkey_out)];
515 struct mlx5_core_sig_ctx *sig;
518 int access_flags; /* Needed for rereg MR */
520 struct mlx5_ib_mr *parent;
521 atomic_t num_leaf_free;
522 wait_queue_head_t q_leaf_free;
527 struct mlx5_core_mkey mmkey;
531 struct mlx5_ib_umr_context {
533 enum ib_wc_status status;
534 struct completion done;
541 /* control access to UMR QP
543 struct semaphore sem;
552 struct mlx5_cache_ent {
553 struct list_head head;
554 /* sync access to the cahce entry
571 struct dentry *fsize;
573 struct dentry *fmiss;
574 struct dentry *flimit;
576 struct mlx5_ib_dev *dev;
577 struct work_struct work;
578 struct delayed_work dwork;
580 struct completion compl;
583 struct mlx5_mr_cache {
584 struct workqueue_struct *wq;
585 struct mlx5_cache_ent ent[MAX_MR_CACHE_ENTRIES];
588 unsigned long last_add;
591 struct mlx5_ib_gsi_qp;
593 struct mlx5_ib_port_resources {
594 struct mlx5_ib_resources *devr;
595 struct mlx5_ib_gsi_qp *gsi;
596 struct work_struct pkey_change_work;
599 struct mlx5_ib_resources {
606 struct mlx5_ib_port_resources ports[2];
607 /* Protects changes to the port resources */
611 struct mlx5_ib_counters {
615 u32 num_cong_counters;
619 struct mlx5_ib_port {
620 struct mlx5_ib_counters cnts;
624 /* Protect mlx5_ib_get_netdev from invoking dev_hold() with a NULL
627 rwlock_t netdev_lock;
628 struct net_device *netdev;
629 struct notifier_block nb;
631 enum ib_port_state last_port_state;
634 struct mlx5_ib_dbg_param {
636 struct mlx5_ib_dev *dev;
637 struct dentry *dentry;
640 enum mlx5_ib_dbg_cc_types {
641 MLX5_IB_DBG_CC_RP_CLAMP_TGT_RATE,
642 MLX5_IB_DBG_CC_RP_CLAMP_TGT_RATE_ATI,
643 MLX5_IB_DBG_CC_RP_TIME_RESET,
644 MLX5_IB_DBG_CC_RP_BYTE_RESET,
645 MLX5_IB_DBG_CC_RP_THRESHOLD,
646 MLX5_IB_DBG_CC_RP_AI_RATE,
647 MLX5_IB_DBG_CC_RP_HAI_RATE,
648 MLX5_IB_DBG_CC_RP_MIN_DEC_FAC,
649 MLX5_IB_DBG_CC_RP_MIN_RATE,
650 MLX5_IB_DBG_CC_RP_RATE_TO_SET_ON_FIRST_CNP,
651 MLX5_IB_DBG_CC_RP_DCE_TCP_G,
652 MLX5_IB_DBG_CC_RP_DCE_TCP_RTT,
653 MLX5_IB_DBG_CC_RP_RATE_REDUCE_MONITOR_PERIOD,
654 MLX5_IB_DBG_CC_RP_INITIAL_ALPHA_VALUE,
655 MLX5_IB_DBG_CC_RP_GD,
656 MLX5_IB_DBG_CC_NP_CNP_DSCP,
657 MLX5_IB_DBG_CC_NP_CNP_PRIO_MODE,
658 MLX5_IB_DBG_CC_NP_CNP_PRIO,
662 struct mlx5_ib_dbg_cc_params {
664 struct mlx5_ib_dbg_param params[MLX5_IB_DBG_CC_MAX];
668 MLX5_MAX_DELAY_DROP_TIMEOUT_MS = 100,
671 struct mlx5_ib_dbg_delay_drop {
672 struct dentry *dir_debugfs;
673 struct dentry *rqs_cnt_debugfs;
674 struct dentry *events_cnt_debugfs;
675 struct dentry *timeout_debugfs;
678 struct mlx5_ib_delay_drop {
679 struct mlx5_ib_dev *dev;
680 struct work_struct delay_drop_work;
681 /* serialize setting of delay drop */
687 struct mlx5_ib_dbg_delay_drop *dbg;
691 struct ib_device ib_dev;
692 struct mlx5_core_dev *mdev;
693 struct mlx5_roce roce;
695 /* serialize update of capability mask
697 struct mutex cap_mask_mutex;
699 struct umr_common umrc;
700 /* sync used page count stats
702 struct mlx5_ib_resources devr;
703 struct mlx5_mr_cache cache;
704 struct timer_list delay_timer;
705 /* Prevents soft lock on massive reg MRs */
706 struct mutex slow_path_mutex;
708 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
709 struct ib_odp_caps odp_caps;
712 * Sleepable RCU that prevents destruction of MRs while they are still
713 * being used by a page fault handler.
715 struct srcu_struct mr_srcu;
718 struct mlx5_ib_flow_db flow_db;
719 /* protect resources needed as part of reset flow */
720 spinlock_t reset_flow_resource_lock;
721 struct list_head qp_list;
722 /* Array with num_ports elements */
723 struct mlx5_ib_port *port;
724 struct mlx5_sq_bfreg bfreg;
725 struct mlx5_sq_bfreg fp_bfreg;
726 struct mlx5_ib_delay_drop delay_drop;
727 struct mlx5_ib_dbg_cc_params *dbg_cc_params;
729 /* protect the user_td */
730 struct mutex lb_mutex;
735 static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq)
737 return container_of(mcq, struct mlx5_ib_cq, mcq);
740 static inline struct mlx5_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
742 return container_of(ibxrcd, struct mlx5_ib_xrcd, ibxrcd);
745 static inline struct mlx5_ib_dev *to_mdev(struct ib_device *ibdev)
747 return container_of(ibdev, struct mlx5_ib_dev, ib_dev);
750 static inline struct mlx5_ib_cq *to_mcq(struct ib_cq *ibcq)
752 return container_of(ibcq, struct mlx5_ib_cq, ibcq);
755 static inline struct mlx5_ib_qp *to_mibqp(struct mlx5_core_qp *mqp)
757 return container_of(mqp, struct mlx5_ib_qp_base, mqp)->container_mibqp;
760 static inline struct mlx5_ib_rwq *to_mibrwq(struct mlx5_core_qp *core_qp)
762 return container_of(core_qp, struct mlx5_ib_rwq, core_qp);
765 static inline struct mlx5_ib_mr *to_mibmr(struct mlx5_core_mkey *mmkey)
767 return container_of(mmkey, struct mlx5_ib_mr, mmkey);
770 static inline struct mlx5_ib_pd *to_mpd(struct ib_pd *ibpd)
772 return container_of(ibpd, struct mlx5_ib_pd, ibpd);
775 static inline struct mlx5_ib_srq *to_msrq(struct ib_srq *ibsrq)
777 return container_of(ibsrq, struct mlx5_ib_srq, ibsrq);
780 static inline struct mlx5_ib_qp *to_mqp(struct ib_qp *ibqp)
782 return container_of(ibqp, struct mlx5_ib_qp, ibqp);
785 static inline struct mlx5_ib_rwq *to_mrwq(struct ib_wq *ibwq)
787 return container_of(ibwq, struct mlx5_ib_rwq, ibwq);
790 static inline struct mlx5_ib_rwq_ind_table *to_mrwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl)
792 return container_of(ib_rwq_ind_tbl, struct mlx5_ib_rwq_ind_table, ib_rwq_ind_tbl);
795 static inline struct mlx5_ib_srq *to_mibsrq(struct mlx5_core_srq *msrq)
797 return container_of(msrq, struct mlx5_ib_srq, msrq);
800 static inline struct mlx5_ib_mr *to_mmr(struct ib_mr *ibmr)
802 return container_of(ibmr, struct mlx5_ib_mr, ibmr);
805 static inline struct mlx5_ib_mw *to_mmw(struct ib_mw *ibmw)
807 return container_of(ibmw, struct mlx5_ib_mw, ibmw);
810 int mlx5_ib_db_map_user(struct mlx5_ib_ucontext *context, unsigned long virt,
812 void mlx5_ib_db_unmap_user(struct mlx5_ib_ucontext *context, struct mlx5_db *db);
813 void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq);
814 void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq);
815 void mlx5_ib_free_srq_wqe(struct mlx5_ib_srq *srq, int wqe_index);
816 int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey,
817 u8 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
818 const void *in_mad, void *response_mad);
819 struct ib_ah *mlx5_ib_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
820 struct ib_udata *udata);
821 int mlx5_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr);
822 int mlx5_ib_destroy_ah(struct ib_ah *ah);
823 struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
824 struct ib_srq_init_attr *init_attr,
825 struct ib_udata *udata);
826 int mlx5_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
827 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
828 int mlx5_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr);
829 int mlx5_ib_destroy_srq(struct ib_srq *srq);
830 int mlx5_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
831 struct ib_recv_wr **bad_wr);
832 struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
833 struct ib_qp_init_attr *init_attr,
834 struct ib_udata *udata);
835 int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
836 int attr_mask, struct ib_udata *udata);
837 int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
838 struct ib_qp_init_attr *qp_init_attr);
839 int mlx5_ib_destroy_qp(struct ib_qp *qp);
840 int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
841 struct ib_send_wr **bad_wr);
842 int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
843 struct ib_recv_wr **bad_wr);
844 void *mlx5_get_send_wqe(struct mlx5_ib_qp *qp, int n);
845 int mlx5_ib_read_user_wqe(struct mlx5_ib_qp *qp, int send, int wqe_index,
846 void *buffer, u32 length,
847 struct mlx5_ib_qp_base *base);
848 struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
849 const struct ib_cq_init_attr *attr,
850 struct ib_ucontext *context,
851 struct ib_udata *udata);
852 int mlx5_ib_destroy_cq(struct ib_cq *cq);
853 int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
854 int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
855 int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
856 int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
857 struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc);
858 struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
859 u64 virt_addr, int access_flags,
860 struct ib_udata *udata);
861 struct ib_mw *mlx5_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
862 struct ib_udata *udata);
863 int mlx5_ib_dealloc_mw(struct ib_mw *mw);
864 int mlx5_ib_update_xlt(struct mlx5_ib_mr *mr, u64 idx, int npages,
865 int page_shift, int flags);
866 struct mlx5_ib_mr *mlx5_ib_alloc_implicit_mr(struct mlx5_ib_pd *pd,
868 void mlx5_ib_free_implicit_mr(struct mlx5_ib_mr *mr);
869 int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
870 u64 length, u64 virt_addr, int access_flags,
871 struct ib_pd *pd, struct ib_udata *udata);
872 int mlx5_ib_dereg_mr(struct ib_mr *ibmr);
873 struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd,
874 enum ib_mr_type mr_type,
876 int mlx5_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
877 unsigned int *sg_offset);
878 int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
879 const struct ib_wc *in_wc, const struct ib_grh *in_grh,
880 const struct ib_mad_hdr *in, size_t in_mad_size,
881 struct ib_mad_hdr *out, size_t *out_mad_size,
882 u16 *out_mad_pkey_index);
883 struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev,
884 struct ib_ucontext *context,
885 struct ib_udata *udata);
886 int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd);
887 int mlx5_ib_get_buf_offset(u64 addr, int page_shift, u32 *offset);
888 int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port);
889 int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev,
890 struct ib_smp *out_mad);
891 int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev,
892 __be64 *sys_image_guid);
893 int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev,
895 int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev,
897 int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc);
898 int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid);
899 int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index,
901 int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index,
903 int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port,
904 struct ib_port_attr *props);
905 int mlx5_ib_query_port(struct ib_device *ibdev, u8 port,
906 struct ib_port_attr *props);
907 int mlx5_ib_init_fmr(struct mlx5_ib_dev *dev);
908 void mlx5_ib_cleanup_fmr(struct mlx5_ib_dev *dev);
909 void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
910 unsigned long max_page_shift,
911 int *count, int *shift,
912 int *ncont, int *order);
913 void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
914 int page_shift, size_t offset, size_t num_pages,
915 __be64 *pas, int access_flags);
916 void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
917 int page_shift, __be64 *pas, int access_flags);
918 void mlx5_ib_copy_pas(u64 *old, u64 *new, int step, int num);
919 int mlx5_ib_get_cqe_size(struct mlx5_ib_dev *dev, struct ib_cq *ibcq);
920 int mlx5_mr_cache_init(struct mlx5_ib_dev *dev);
921 int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev);
923 struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int entry);
924 void mlx5_mr_cache_free(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr);
925 int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask,
926 struct ib_mr_status *mr_status);
927 struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd,
928 struct ib_wq_init_attr *init_attr,
929 struct ib_udata *udata);
930 int mlx5_ib_destroy_wq(struct ib_wq *wq);
931 int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
932 u32 wq_attr_mask, struct ib_udata *udata);
933 struct ib_rwq_ind_table *mlx5_ib_create_rwq_ind_table(struct ib_device *device,
934 struct ib_rwq_ind_table_init_attr *init_attr,
935 struct ib_udata *udata);
936 int mlx5_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table);
938 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
939 void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev);
940 void mlx5_ib_pfault(struct mlx5_core_dev *mdev, void *context,
941 struct mlx5_pagefault *pfault);
942 int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev);
943 void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *ibdev);
944 int __init mlx5_ib_odp_init(void);
945 void mlx5_ib_odp_cleanup(void);
946 void mlx5_ib_invalidate_range(struct ib_umem *umem, unsigned long start,
948 void mlx5_odp_init_mr_cache_entry(struct mlx5_cache_ent *ent);
949 void mlx5_odp_populate_klm(struct mlx5_klm *pklm, size_t offset,
950 size_t nentries, struct mlx5_ib_mr *mr, int flags);
951 #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
952 static inline void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev)
957 static inline int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev) { return 0; }
958 static inline void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *ibdev) {}
959 static inline int mlx5_ib_odp_init(void) { return 0; }
960 static inline void mlx5_ib_odp_cleanup(void) {}
961 static inline void mlx5_odp_init_mr_cache_entry(struct mlx5_cache_ent *ent) {}
962 static inline void mlx5_odp_populate_klm(struct mlx5_klm *pklm, size_t offset,
963 size_t nentries, struct mlx5_ib_mr *mr,
966 #endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
968 int mlx5_ib_get_vf_config(struct ib_device *device, int vf,
969 u8 port, struct ifla_vf_info *info);
970 int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf,
972 int mlx5_ib_get_vf_stats(struct ib_device *device, int vf,
973 u8 port, struct ifla_vf_stats *stats);
974 int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u8 port,
977 __be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, u8 port_num,
979 int mlx5_get_roce_gid_type(struct mlx5_ib_dev *dev, u8 port_num,
980 int index, enum ib_gid_type *gid_type);
982 void mlx5_ib_cleanup_cong_debugfs(struct mlx5_ib_dev *dev);
983 int mlx5_ib_init_cong_debugfs(struct mlx5_ib_dev *dev);
985 /* GSI QP helper functions */
986 struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
987 struct ib_qp_init_attr *init_attr);
988 int mlx5_ib_gsi_destroy_qp(struct ib_qp *qp);
989 int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr,
991 int mlx5_ib_gsi_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
993 struct ib_qp_init_attr *qp_init_attr);
994 int mlx5_ib_gsi_post_send(struct ib_qp *qp, struct ib_send_wr *wr,
995 struct ib_send_wr **bad_wr);
996 int mlx5_ib_gsi_post_recv(struct ib_qp *qp, struct ib_recv_wr *wr,
997 struct ib_recv_wr **bad_wr);
998 void mlx5_ib_gsi_pkey_change(struct mlx5_ib_gsi_qp *gsi);
1000 int mlx5_ib_generate_wc(struct ib_cq *ibcq, struct ib_wc *wc);
1002 static inline void init_query_mad(struct ib_smp *mad)
1004 mad->base_version = 1;
1005 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
1006 mad->class_version = 1;
1007 mad->method = IB_MGMT_METHOD_GET;
1010 static inline u8 convert_access(int acc)
1012 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) |
1013 (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) |
1014 (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) |
1015 (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) |
1016 MLX5_PERM_LOCAL_READ;
1019 static inline int is_qp1(enum ib_qp_type qp_type)
1021 return qp_type == MLX5_IB_QPT_HW_GSI;
1024 #define MLX5_MAX_UMR_SHIFT 16
1025 #define MLX5_MAX_UMR_PAGES (1 << MLX5_MAX_UMR_SHIFT)
1027 static inline u32 check_cq_create_flags(u32 flags)
1030 * It returns non-zero value for unsupported CQ
1031 * create flags, otherwise it returns zero.
1033 return (flags & ~(IB_CQ_FLAGS_IGNORE_OVERRUN |
1034 IB_CQ_FLAGS_TIMESTAMP_COMPLETION));
1037 static inline int verify_assign_uidx(u8 cqe_version, u32 cmd_uidx,
1041 if ((cmd_uidx == MLX5_IB_DEFAULT_UIDX) ||
1042 (cmd_uidx & ~MLX5_USER_ASSIGNED_UIDX_MASK))
1044 *user_index = cmd_uidx;
1046 *user_index = MLX5_IB_DEFAULT_UIDX;
1052 static inline int get_qp_user_index(struct mlx5_ib_ucontext *ucontext,
1053 struct mlx5_ib_create_qp *ucmd,
1057 u8 cqe_version = ucontext->cqe_version;
1059 if (field_avail(struct mlx5_ib_create_qp, uidx, inlen) &&
1060 !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
1063 if (!!(field_avail(struct mlx5_ib_create_qp, uidx, inlen) !=
1067 return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
1070 static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext,
1071 struct mlx5_ib_create_srq *ucmd,
1075 u8 cqe_version = ucontext->cqe_version;
1077 if (field_avail(struct mlx5_ib_create_srq, uidx, inlen) &&
1078 !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
1081 if (!!(field_avail(struct mlx5_ib_create_srq, uidx, inlen) !=
1085 return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
1088 static inline int get_uars_per_sys_page(struct mlx5_ib_dev *dev, bool lib_support)
1090 return lib_support && MLX5_CAP_GEN(dev->mdev, uar_4k) ?
1091 MLX5_UARS_IN_PAGE : 1;
1094 static inline int get_num_uars(struct mlx5_ib_dev *dev,
1095 struct mlx5_bfreg_info *bfregi)
1097 return get_uars_per_sys_page(dev, bfregi->lib_uar_4k) * bfregi->num_sys_pages;
1100 #endif /* MLX5_IB_H */