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,
110 struct mlx5_ib_vma_private_data {
111 struct list_head list;
112 struct vm_area_struct *vma;
115 struct mlx5_ib_ucontext {
116 struct ib_ucontext ibucontext;
117 struct list_head db_page_list;
119 /* protect doorbell record alloc/free
121 struct mutex db_page_mutex;
122 struct mlx5_bfreg_info bfregi;
124 /* Transport Domain number */
126 struct list_head vma_private_list;
128 unsigned long upd_xlt_page;
129 /* protect ODP/KSM */
130 struct mutex upd_xlt_page_mutex;
134 static inline struct mlx5_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
136 return container_of(ibucontext, struct mlx5_ib_ucontext, ibucontext);
144 #define MLX5_IB_FLOW_MCAST_PRIO (MLX5_BY_PASS_NUM_PRIOS - 1)
145 #define MLX5_IB_FLOW_LAST_PRIO (MLX5_BY_PASS_NUM_REGULAR_PRIOS - 1)
146 #if (MLX5_IB_FLOW_LAST_PRIO <= 0)
147 #error "Invalid number of bypass priorities"
149 #define MLX5_IB_FLOW_LEFTOVERS_PRIO (MLX5_IB_FLOW_MCAST_PRIO + 1)
151 #define MLX5_IB_NUM_FLOW_FT (MLX5_IB_FLOW_LEFTOVERS_PRIO + 1)
152 #define MLX5_IB_NUM_SNIFFER_FTS 2
153 struct mlx5_ib_flow_prio {
154 struct mlx5_flow_table *flow_table;
155 unsigned int refcount;
158 struct mlx5_ib_flow_handler {
159 struct list_head list;
160 struct ib_flow ibflow;
161 struct mlx5_ib_flow_prio *prio;
162 struct mlx5_flow_handle *rule;
165 struct mlx5_ib_flow_db {
166 struct mlx5_ib_flow_prio prios[MLX5_IB_NUM_FLOW_FT];
167 struct mlx5_ib_flow_prio sniffer[MLX5_IB_NUM_SNIFFER_FTS];
168 struct mlx5_flow_table *lag_demux_ft;
169 /* Protect flow steering bypass flow tables
170 * when add/del flow rules.
171 * only single add/removal of flow steering rule could be done
177 /* Use macros here so that don't have to duplicate
178 * enum ib_send_flags and enum ib_qp_type for low-level driver
181 #define MLX5_IB_SEND_UMR_ENABLE_MR (IB_SEND_RESERVED_START << 0)
182 #define MLX5_IB_SEND_UMR_DISABLE_MR (IB_SEND_RESERVED_START << 1)
183 #define MLX5_IB_SEND_UMR_FAIL_IF_FREE (IB_SEND_RESERVED_START << 2)
184 #define MLX5_IB_SEND_UMR_UPDATE_XLT (IB_SEND_RESERVED_START << 3)
185 #define MLX5_IB_SEND_UMR_UPDATE_TRANSLATION (IB_SEND_RESERVED_START << 4)
186 #define MLX5_IB_SEND_UMR_UPDATE_PD_ACCESS IB_SEND_RESERVED_END
188 #define MLX5_IB_QPT_REG_UMR IB_QPT_RESERVED1
190 * IB_QPT_GSI creates the software wrapper around GSI, and MLX5_IB_QPT_HW_GSI
191 * creates the actual hardware QP.
193 #define MLX5_IB_QPT_HW_GSI IB_QPT_RESERVED2
194 #define MLX5_IB_WR_UMR IB_WR_RESERVED1
196 #define MLX5_IB_UMR_OCTOWORD 16
197 #define MLX5_IB_UMR_XLT_ALIGNMENT 64
199 #define MLX5_IB_UPD_XLT_ZAP BIT(0)
200 #define MLX5_IB_UPD_XLT_ENABLE BIT(1)
201 #define MLX5_IB_UPD_XLT_ATOMIC BIT(2)
202 #define MLX5_IB_UPD_XLT_ADDR BIT(3)
203 #define MLX5_IB_UPD_XLT_PD BIT(4)
204 #define MLX5_IB_UPD_XLT_ACCESS BIT(5)
205 #define MLX5_IB_UPD_XLT_INDIRECT BIT(6)
207 /* Private QP creation flags to be passed in ib_qp_init_attr.create_flags.
209 * These flags are intended for internal use by the mlx5_ib driver, and they
210 * rely on the range reserved for that use in the ib_qp_create_flags enum.
213 /* Create a UD QP whose source QP number is 1 */
214 static inline enum ib_qp_create_flags mlx5_ib_create_qp_sqpn_qp1(void)
216 return IB_QP_CREATE_RESERVED_START;
224 enum mlx5_ib_rq_flags {
225 MLX5_IB_RQ_CVLAN_STRIPPING = 1 << 0,
231 struct wr_list *w_list;
235 /* serialize post to the work queue
252 struct mlx5_core_qp core_qp;
258 struct ib_umem *umem;
260 unsigned int page_shift;
280 struct mlx5_ib_rwq_ind_table {
281 struct ib_rwq_ind_table ib_rwq_ind_tbl;
285 struct mlx5_ib_ubuffer {
286 struct ib_umem *umem;
291 struct mlx5_ib_qp_base {
292 struct mlx5_ib_qp *container_mibqp;
293 struct mlx5_core_qp mqp;
294 struct mlx5_ib_ubuffer ubuffer;
297 struct mlx5_ib_qp_trans {
298 struct mlx5_ib_qp_base base;
305 struct mlx5_ib_rss_qp {
310 struct mlx5_ib_qp_base base;
311 struct mlx5_ib_wq *rq;
312 struct mlx5_ib_ubuffer ubuffer;
313 struct mlx5_db *doorbell;
320 struct mlx5_ib_qp_base base;
321 struct mlx5_ib_wq *sq;
322 struct mlx5_ib_ubuffer ubuffer;
323 struct mlx5_db *doorbell;
328 struct mlx5_ib_raw_packet_qp {
329 struct mlx5_ib_sq sq;
330 struct mlx5_ib_rq rq;
335 unsigned long offset;
336 struct mlx5_sq_bfreg *bfreg;
342 struct mlx5_ib_qp_trans trans_qp;
343 struct mlx5_ib_raw_packet_qp raw_packet_qp;
344 struct mlx5_ib_rss_qp rss_qp;
349 struct mlx5_ib_wq rq;
353 struct mlx5_ib_wq sq;
355 /* serialize qp state modifications
367 /* only for user space QPs. For kernel
368 * we have it from the bf object
374 /* Store signature errors */
377 struct list_head qps_list;
378 struct list_head cq_recv_list;
379 struct list_head cq_send_list;
383 struct mlx5_ib_cq_buf {
385 struct ib_umem *umem;
390 enum mlx5_ib_qp_flags {
391 MLX5_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
392 MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
393 MLX5_IB_QP_CROSS_CHANNEL = IB_QP_CREATE_CROSS_CHANNEL,
394 MLX5_IB_QP_MANAGED_SEND = IB_QP_CREATE_MANAGED_SEND,
395 MLX5_IB_QP_MANAGED_RECV = IB_QP_CREATE_MANAGED_RECV,
396 MLX5_IB_QP_SIGNATURE_HANDLING = 1 << 5,
397 /* QP uses 1 as its source QP number */
398 MLX5_IB_QP_SQPN_QP1 = 1 << 6,
399 MLX5_IB_QP_CAP_SCATTER_FCS = 1 << 7,
400 MLX5_IB_QP_RSS = 1 << 8,
401 MLX5_IB_QP_CVLAN_STRIPPING = 1 << 9,
405 struct ib_send_wr wr;
409 unsigned int page_shift;
410 unsigned int xlt_size;
416 static inline struct mlx5_umr_wr *umr_wr(struct ib_send_wr *wr)
418 return container_of(wr, struct mlx5_umr_wr, wr);
421 struct mlx5_shared_mr_info {
423 struct ib_umem *umem;
428 struct mlx5_core_cq mcq;
429 struct mlx5_ib_cq_buf buf;
432 /* serialize access to the CQ
438 struct mutex resize_mutex;
439 struct mlx5_ib_cq_buf *resize_buf;
440 struct ib_umem *resize_umem;
442 struct list_head list_send_qp;
443 struct list_head list_recv_qp;
445 struct list_head wc_list;
446 enum ib_cq_notify_flags notify_flags;
447 struct work_struct notify_work;
452 struct list_head list;
457 struct mlx5_core_srq msrq;
461 /* protect SRQ hanlding
467 struct ib_umem *umem;
468 /* serialize arming a SRQ
474 struct mlx5_ib_xrcd {
475 struct ib_xrcd ibxrcd;
479 enum mlx5_ib_mtt_access_flags {
480 MLX5_IB_MTT_READ = (1 << 0),
481 MLX5_IB_MTT_WRITE = (1 << 1),
484 #define MLX5_IB_MTT_PRESENT (MLX5_IB_MTT_READ | MLX5_IB_MTT_WRITE)
494 struct mlx5_core_mkey mmkey;
495 struct ib_umem *umem;
496 struct mlx5_shared_mr_info *smr_info;
497 struct list_head list;
501 struct mlx5_ib_dev *dev;
502 u32 out[MLX5_ST_SZ_DW(create_mkey_out)];
503 struct mlx5_core_sig_ctx *sig;
506 int access_flags; /* Needed for rereg MR */
508 struct mlx5_ib_mr *parent;
509 atomic_t num_leaf_free;
510 wait_queue_head_t q_leaf_free;
515 struct mlx5_core_mkey mmkey;
519 struct mlx5_ib_umr_context {
521 enum ib_wc_status status;
522 struct completion done;
529 /* control access to UMR QP
531 struct semaphore sem;
540 struct mlx5_cache_ent {
541 struct list_head head;
542 /* sync access to the cahce entry
559 struct dentry *fsize;
561 struct dentry *fmiss;
562 struct dentry *flimit;
564 struct mlx5_ib_dev *dev;
565 struct work_struct work;
566 struct delayed_work dwork;
568 struct completion compl;
571 struct mlx5_mr_cache {
572 struct workqueue_struct *wq;
573 struct mlx5_cache_ent ent[MAX_MR_CACHE_ENTRIES];
576 unsigned long last_add;
579 struct mlx5_ib_gsi_qp;
581 struct mlx5_ib_port_resources {
582 struct mlx5_ib_resources *devr;
583 struct mlx5_ib_gsi_qp *gsi;
584 struct work_struct pkey_change_work;
587 struct mlx5_ib_resources {
594 struct mlx5_ib_port_resources ports[2];
595 /* Protects changes to the port resources */
599 struct mlx5_ib_counters {
603 u32 num_cong_counters;
607 struct mlx5_ib_port {
608 struct mlx5_ib_counters cnts;
612 /* Protect mlx5_ib_get_netdev from invoking dev_hold() with a NULL
615 rwlock_t netdev_lock;
616 struct net_device *netdev;
617 struct notifier_block nb;
619 enum ib_port_state last_port_state;
622 struct mlx5_ib_dbg_param {
624 struct mlx5_ib_dev *dev;
625 struct dentry *dentry;
628 enum mlx5_ib_dbg_cc_types {
629 MLX5_IB_DBG_CC_RP_CLAMP_TGT_RATE,
630 MLX5_IB_DBG_CC_RP_CLAMP_TGT_RATE_ATI,
631 MLX5_IB_DBG_CC_RP_TIME_RESET,
632 MLX5_IB_DBG_CC_RP_BYTE_RESET,
633 MLX5_IB_DBG_CC_RP_THRESHOLD,
634 MLX5_IB_DBG_CC_RP_AI_RATE,
635 MLX5_IB_DBG_CC_RP_HAI_RATE,
636 MLX5_IB_DBG_CC_RP_MIN_DEC_FAC,
637 MLX5_IB_DBG_CC_RP_MIN_RATE,
638 MLX5_IB_DBG_CC_RP_RATE_TO_SET_ON_FIRST_CNP,
639 MLX5_IB_DBG_CC_RP_DCE_TCP_G,
640 MLX5_IB_DBG_CC_RP_DCE_TCP_RTT,
641 MLX5_IB_DBG_CC_RP_RATE_REDUCE_MONITOR_PERIOD,
642 MLX5_IB_DBG_CC_RP_INITIAL_ALPHA_VALUE,
643 MLX5_IB_DBG_CC_RP_GD,
644 MLX5_IB_DBG_CC_NP_CNP_DSCP,
645 MLX5_IB_DBG_CC_NP_CNP_PRIO_MODE,
646 MLX5_IB_DBG_CC_NP_CNP_PRIO,
650 struct mlx5_ib_dbg_cc_params {
652 struct mlx5_ib_dbg_param params[MLX5_IB_DBG_CC_MAX];
656 struct ib_device ib_dev;
657 struct mlx5_core_dev *mdev;
658 struct mlx5_roce roce;
660 /* serialize update of capability mask
662 struct mutex cap_mask_mutex;
664 struct umr_common umrc;
665 /* sync used page count stats
667 struct mlx5_ib_resources devr;
668 struct mlx5_mr_cache cache;
669 struct timer_list delay_timer;
670 /* Prevents soft lock on massive reg MRs */
671 struct mutex slow_path_mutex;
673 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
674 struct ib_odp_caps odp_caps;
677 * Sleepable RCU that prevents destruction of MRs while they are still
678 * being used by a page fault handler.
680 struct srcu_struct mr_srcu;
683 struct mlx5_ib_flow_db flow_db;
684 /* protect resources needed as part of reset flow */
685 spinlock_t reset_flow_resource_lock;
686 struct list_head qp_list;
687 /* Array with num_ports elements */
688 struct mlx5_ib_port *port;
689 struct mlx5_sq_bfreg bfreg;
690 struct mlx5_sq_bfreg fp_bfreg;
691 struct mlx5_ib_dbg_cc_params *dbg_cc_params;
693 /* protect the user_td */
694 struct mutex lb_mutex;
699 static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq)
701 return container_of(mcq, struct mlx5_ib_cq, mcq);
704 static inline struct mlx5_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
706 return container_of(ibxrcd, struct mlx5_ib_xrcd, ibxrcd);
709 static inline struct mlx5_ib_dev *to_mdev(struct ib_device *ibdev)
711 return container_of(ibdev, struct mlx5_ib_dev, ib_dev);
714 static inline struct mlx5_ib_cq *to_mcq(struct ib_cq *ibcq)
716 return container_of(ibcq, struct mlx5_ib_cq, ibcq);
719 static inline struct mlx5_ib_qp *to_mibqp(struct mlx5_core_qp *mqp)
721 return container_of(mqp, struct mlx5_ib_qp_base, mqp)->container_mibqp;
724 static inline struct mlx5_ib_rwq *to_mibrwq(struct mlx5_core_qp *core_qp)
726 return container_of(core_qp, struct mlx5_ib_rwq, core_qp);
729 static inline struct mlx5_ib_mr *to_mibmr(struct mlx5_core_mkey *mmkey)
731 return container_of(mmkey, struct mlx5_ib_mr, mmkey);
734 static inline struct mlx5_ib_pd *to_mpd(struct ib_pd *ibpd)
736 return container_of(ibpd, struct mlx5_ib_pd, ibpd);
739 static inline struct mlx5_ib_srq *to_msrq(struct ib_srq *ibsrq)
741 return container_of(ibsrq, struct mlx5_ib_srq, ibsrq);
744 static inline struct mlx5_ib_qp *to_mqp(struct ib_qp *ibqp)
746 return container_of(ibqp, struct mlx5_ib_qp, ibqp);
749 static inline struct mlx5_ib_rwq *to_mrwq(struct ib_wq *ibwq)
751 return container_of(ibwq, struct mlx5_ib_rwq, ibwq);
754 static inline struct mlx5_ib_rwq_ind_table *to_mrwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl)
756 return container_of(ib_rwq_ind_tbl, struct mlx5_ib_rwq_ind_table, ib_rwq_ind_tbl);
759 static inline struct mlx5_ib_srq *to_mibsrq(struct mlx5_core_srq *msrq)
761 return container_of(msrq, struct mlx5_ib_srq, msrq);
764 static inline struct mlx5_ib_mr *to_mmr(struct ib_mr *ibmr)
766 return container_of(ibmr, struct mlx5_ib_mr, ibmr);
769 static inline struct mlx5_ib_mw *to_mmw(struct ib_mw *ibmw)
771 return container_of(ibmw, struct mlx5_ib_mw, ibmw);
774 int mlx5_ib_db_map_user(struct mlx5_ib_ucontext *context, unsigned long virt,
776 void mlx5_ib_db_unmap_user(struct mlx5_ib_ucontext *context, struct mlx5_db *db);
777 void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq);
778 void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq);
779 void mlx5_ib_free_srq_wqe(struct mlx5_ib_srq *srq, int wqe_index);
780 int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey,
781 u8 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
782 const void *in_mad, void *response_mad);
783 struct ib_ah *mlx5_ib_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
784 struct ib_udata *udata);
785 int mlx5_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr);
786 int mlx5_ib_destroy_ah(struct ib_ah *ah);
787 struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
788 struct ib_srq_init_attr *init_attr,
789 struct ib_udata *udata);
790 int mlx5_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
791 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
792 int mlx5_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr);
793 int mlx5_ib_destroy_srq(struct ib_srq *srq);
794 int mlx5_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
795 struct ib_recv_wr **bad_wr);
796 struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
797 struct ib_qp_init_attr *init_attr,
798 struct ib_udata *udata);
799 int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
800 int attr_mask, struct ib_udata *udata);
801 int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
802 struct ib_qp_init_attr *qp_init_attr);
803 int mlx5_ib_destroy_qp(struct ib_qp *qp);
804 int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
805 struct ib_send_wr **bad_wr);
806 int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
807 struct ib_recv_wr **bad_wr);
808 void *mlx5_get_send_wqe(struct mlx5_ib_qp *qp, int n);
809 int mlx5_ib_read_user_wqe(struct mlx5_ib_qp *qp, int send, int wqe_index,
810 void *buffer, u32 length,
811 struct mlx5_ib_qp_base *base);
812 struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
813 const struct ib_cq_init_attr *attr,
814 struct ib_ucontext *context,
815 struct ib_udata *udata);
816 int mlx5_ib_destroy_cq(struct ib_cq *cq);
817 int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
818 int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
819 int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
820 int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
821 struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc);
822 struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
823 u64 virt_addr, int access_flags,
824 struct ib_udata *udata);
825 struct ib_mw *mlx5_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
826 struct ib_udata *udata);
827 int mlx5_ib_dealloc_mw(struct ib_mw *mw);
828 int mlx5_ib_update_xlt(struct mlx5_ib_mr *mr, u64 idx, int npages,
829 int page_shift, int flags);
830 struct mlx5_ib_mr *mlx5_ib_alloc_implicit_mr(struct mlx5_ib_pd *pd,
832 void mlx5_ib_free_implicit_mr(struct mlx5_ib_mr *mr);
833 int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
834 u64 length, u64 virt_addr, int access_flags,
835 struct ib_pd *pd, struct ib_udata *udata);
836 int mlx5_ib_dereg_mr(struct ib_mr *ibmr);
837 struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd,
838 enum ib_mr_type mr_type,
840 int mlx5_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
841 unsigned int *sg_offset);
842 int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
843 const struct ib_wc *in_wc, const struct ib_grh *in_grh,
844 const struct ib_mad_hdr *in, size_t in_mad_size,
845 struct ib_mad_hdr *out, size_t *out_mad_size,
846 u16 *out_mad_pkey_index);
847 struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev,
848 struct ib_ucontext *context,
849 struct ib_udata *udata);
850 int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd);
851 int mlx5_ib_get_buf_offset(u64 addr, int page_shift, u32 *offset);
852 int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port);
853 int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev,
854 struct ib_smp *out_mad);
855 int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev,
856 __be64 *sys_image_guid);
857 int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev,
859 int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev,
861 int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc);
862 int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid);
863 int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index,
865 int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index,
867 int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port,
868 struct ib_port_attr *props);
869 int mlx5_ib_query_port(struct ib_device *ibdev, u8 port,
870 struct ib_port_attr *props);
871 int mlx5_ib_init_fmr(struct mlx5_ib_dev *dev);
872 void mlx5_ib_cleanup_fmr(struct mlx5_ib_dev *dev);
873 void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
874 unsigned long max_page_shift,
875 int *count, int *shift,
876 int *ncont, int *order);
877 void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
878 int page_shift, size_t offset, size_t num_pages,
879 __be64 *pas, int access_flags);
880 void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
881 int page_shift, __be64 *pas, int access_flags);
882 void mlx5_ib_copy_pas(u64 *old, u64 *new, int step, int num);
883 int mlx5_ib_get_cqe_size(struct mlx5_ib_dev *dev, struct ib_cq *ibcq);
884 int mlx5_mr_cache_init(struct mlx5_ib_dev *dev);
885 int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev);
887 struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int entry);
888 void mlx5_mr_cache_free(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr);
889 int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask,
890 struct ib_mr_status *mr_status);
891 struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd,
892 struct ib_wq_init_attr *init_attr,
893 struct ib_udata *udata);
894 int mlx5_ib_destroy_wq(struct ib_wq *wq);
895 int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
896 u32 wq_attr_mask, struct ib_udata *udata);
897 struct ib_rwq_ind_table *mlx5_ib_create_rwq_ind_table(struct ib_device *device,
898 struct ib_rwq_ind_table_init_attr *init_attr,
899 struct ib_udata *udata);
900 int mlx5_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table);
902 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
903 void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev);
904 void mlx5_ib_pfault(struct mlx5_core_dev *mdev, void *context,
905 struct mlx5_pagefault *pfault);
906 int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev);
907 void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *ibdev);
908 int __init mlx5_ib_odp_init(void);
909 void mlx5_ib_odp_cleanup(void);
910 void mlx5_ib_invalidate_range(struct ib_umem *umem, unsigned long start,
912 void mlx5_odp_init_mr_cache_entry(struct mlx5_cache_ent *ent);
913 void mlx5_odp_populate_klm(struct mlx5_klm *pklm, size_t offset,
914 size_t nentries, struct mlx5_ib_mr *mr, int flags);
915 #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
916 static inline void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev)
921 static inline int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev) { return 0; }
922 static inline void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *ibdev) {}
923 static inline int mlx5_ib_odp_init(void) { return 0; }
924 static inline void mlx5_ib_odp_cleanup(void) {}
925 static inline void mlx5_odp_init_mr_cache_entry(struct mlx5_cache_ent *ent) {}
926 static inline void mlx5_odp_populate_klm(struct mlx5_klm *pklm, size_t offset,
927 size_t nentries, struct mlx5_ib_mr *mr,
930 #endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
932 int mlx5_ib_get_vf_config(struct ib_device *device, int vf,
933 u8 port, struct ifla_vf_info *info);
934 int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf,
936 int mlx5_ib_get_vf_stats(struct ib_device *device, int vf,
937 u8 port, struct ifla_vf_stats *stats);
938 int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u8 port,
941 __be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, u8 port_num,
943 int mlx5_get_roce_gid_type(struct mlx5_ib_dev *dev, u8 port_num,
944 int index, enum ib_gid_type *gid_type);
946 void mlx5_ib_cleanup_cong_debugfs(struct mlx5_ib_dev *dev);
947 int mlx5_ib_init_cong_debugfs(struct mlx5_ib_dev *dev);
949 /* GSI QP helper functions */
950 struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
951 struct ib_qp_init_attr *init_attr);
952 int mlx5_ib_gsi_destroy_qp(struct ib_qp *qp);
953 int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr,
955 int mlx5_ib_gsi_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
957 struct ib_qp_init_attr *qp_init_attr);
958 int mlx5_ib_gsi_post_send(struct ib_qp *qp, struct ib_send_wr *wr,
959 struct ib_send_wr **bad_wr);
960 int mlx5_ib_gsi_post_recv(struct ib_qp *qp, struct ib_recv_wr *wr,
961 struct ib_recv_wr **bad_wr);
962 void mlx5_ib_gsi_pkey_change(struct mlx5_ib_gsi_qp *gsi);
964 int mlx5_ib_generate_wc(struct ib_cq *ibcq, struct ib_wc *wc);
966 static inline void init_query_mad(struct ib_smp *mad)
968 mad->base_version = 1;
969 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
970 mad->class_version = 1;
971 mad->method = IB_MGMT_METHOD_GET;
974 static inline u8 convert_access(int acc)
976 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) |
977 (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) |
978 (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) |
979 (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) |
980 MLX5_PERM_LOCAL_READ;
983 static inline int is_qp1(enum ib_qp_type qp_type)
985 return qp_type == MLX5_IB_QPT_HW_GSI;
988 #define MLX5_MAX_UMR_SHIFT 16
989 #define MLX5_MAX_UMR_PAGES (1 << MLX5_MAX_UMR_SHIFT)
991 static inline u32 check_cq_create_flags(u32 flags)
994 * It returns non-zero value for unsupported CQ
995 * create flags, otherwise it returns zero.
997 return (flags & ~(IB_CQ_FLAGS_IGNORE_OVERRUN |
998 IB_CQ_FLAGS_TIMESTAMP_COMPLETION));
1001 static inline int verify_assign_uidx(u8 cqe_version, u32 cmd_uidx,
1005 if ((cmd_uidx == MLX5_IB_DEFAULT_UIDX) ||
1006 (cmd_uidx & ~MLX5_USER_ASSIGNED_UIDX_MASK))
1008 *user_index = cmd_uidx;
1010 *user_index = MLX5_IB_DEFAULT_UIDX;
1016 static inline int get_qp_user_index(struct mlx5_ib_ucontext *ucontext,
1017 struct mlx5_ib_create_qp *ucmd,
1021 u8 cqe_version = ucontext->cqe_version;
1023 if (field_avail(struct mlx5_ib_create_qp, uidx, inlen) &&
1024 !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
1027 if (!!(field_avail(struct mlx5_ib_create_qp, uidx, inlen) !=
1031 return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
1034 static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext,
1035 struct mlx5_ib_create_srq *ucmd,
1039 u8 cqe_version = ucontext->cqe_version;
1041 if (field_avail(struct mlx5_ib_create_srq, uidx, inlen) &&
1042 !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
1045 if (!!(field_avail(struct mlx5_ib_create_srq, uidx, inlen) !=
1049 return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
1052 static inline int get_uars_per_sys_page(struct mlx5_ib_dev *dev, bool lib_support)
1054 return lib_support && MLX5_CAP_GEN(dev->mdev, uar_4k) ?
1055 MLX5_UARS_IN_PAGE : 1;
1058 static inline int get_num_uars(struct mlx5_ib_dev *dev,
1059 struct mlx5_bfreg_info *bfregi)
1061 return get_uars_per_sys_page(dev, bfregi->lib_uar_4k) * bfregi->num_sys_pages;
1064 #endif /* MLX5_IB_H */