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>
48 #define mlx5_ib_dbg(dev, format, arg...) \
49 pr_debug("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__, \
50 __LINE__, current->pid, ##arg)
52 #define mlx5_ib_err(dev, format, arg...) \
53 pr_err("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__, \
54 __LINE__, current->pid, ##arg)
56 #define mlx5_ib_warn(dev, format, arg...) \
57 pr_warn("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__, \
58 __LINE__, current->pid, ##arg)
60 #define field_avail(type, fld, sz) (offsetof(type, fld) + \
61 sizeof(((type *)0)->fld) <= (sz))
62 #define MLX5_IB_DEFAULT_UIDX 0xffffff
63 #define MLX5_USER_ASSIGNED_UIDX_MASK __mlx5_mask(qpc, user_index)
66 MLX5_IB_MMAP_CMD_SHIFT = 8,
67 MLX5_IB_MMAP_CMD_MASK = 0xff,
70 enum mlx5_ib_mmap_cmd {
71 MLX5_IB_MMAP_REGULAR_PAGE = 0,
72 MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES = 1,
73 MLX5_IB_MMAP_WC_PAGE = 2,
74 MLX5_IB_MMAP_NC_PAGE = 3,
75 /* 5 is chosen in order to be compatible with old versions of libmlx5 */
76 MLX5_IB_MMAP_CORE_CLOCK = 5,
80 MLX5_RES_SCAT_DATA32_CQE = 0x1,
81 MLX5_RES_SCAT_DATA64_CQE = 0x2,
82 MLX5_REQ_SCAT_DATA32_CQE = 0x11,
83 MLX5_REQ_SCAT_DATA64_CQE = 0x22,
86 enum mlx5_ib_latency_class {
87 MLX5_IB_LATENCY_CLASS_LOW,
88 MLX5_IB_LATENCY_CLASS_MEDIUM,
89 MLX5_IB_LATENCY_CLASS_HIGH,
90 MLX5_IB_LATENCY_CLASS_FAST_PATH
93 enum mlx5_ib_mad_ifc_flags {
94 MLX5_MAD_IFC_IGNORE_MKEY = 1,
95 MLX5_MAD_IFC_IGNORE_BKEY = 2,
96 MLX5_MAD_IFC_NET_VIEW = 4,
100 MLX5_CROSS_CHANNEL_UUAR = 0,
108 struct mlx5_ib_vma_private_data {
109 struct list_head list;
110 struct vm_area_struct *vma;
113 struct mlx5_ib_ucontext {
114 struct ib_ucontext ibucontext;
115 struct list_head db_page_list;
117 /* protect doorbell record alloc/free
119 struct mutex db_page_mutex;
120 struct mlx5_uuar_info uuari;
122 /* Transport Domain number */
124 struct list_head vma_private_list;
127 static inline struct mlx5_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
129 return container_of(ibucontext, struct mlx5_ib_ucontext, ibucontext);
137 #define MLX5_IB_FLOW_MCAST_PRIO (MLX5_BY_PASS_NUM_PRIOS - 1)
138 #define MLX5_IB_FLOW_LAST_PRIO (MLX5_BY_PASS_NUM_REGULAR_PRIOS - 1)
139 #if (MLX5_IB_FLOW_LAST_PRIO <= 0)
140 #error "Invalid number of bypass priorities"
142 #define MLX5_IB_FLOW_LEFTOVERS_PRIO (MLX5_IB_FLOW_MCAST_PRIO + 1)
144 #define MLX5_IB_NUM_FLOW_FT (MLX5_IB_FLOW_LEFTOVERS_PRIO + 1)
145 struct mlx5_ib_flow_prio {
146 struct mlx5_flow_table *flow_table;
147 unsigned int refcount;
150 struct mlx5_ib_flow_handler {
151 struct list_head list;
152 struct ib_flow ibflow;
154 struct mlx5_flow_rule *rule;
157 struct mlx5_ib_flow_db {
158 struct mlx5_ib_flow_prio prios[MLX5_IB_NUM_FLOW_FT];
159 /* Protect flow steering bypass flow tables
160 * when add/del flow rules.
161 * only single add/removal of flow steering rule could be done
167 /* Use macros here so that don't have to duplicate
168 * enum ib_send_flags and enum ib_qp_type for low-level driver
171 #define MLX5_IB_SEND_UMR_UNREG IB_SEND_RESERVED_START
172 #define MLX5_IB_SEND_UMR_FAIL_IF_FREE (IB_SEND_RESERVED_START << 1)
173 #define MLX5_IB_SEND_UMR_UPDATE_MTT (IB_SEND_RESERVED_START << 2)
175 #define MLX5_IB_SEND_UMR_UPDATE_TRANSLATION (IB_SEND_RESERVED_START << 3)
176 #define MLX5_IB_SEND_UMR_UPDATE_PD (IB_SEND_RESERVED_START << 4)
177 #define MLX5_IB_SEND_UMR_UPDATE_ACCESS IB_SEND_RESERVED_END
179 #define MLX5_IB_QPT_REG_UMR IB_QPT_RESERVED1
181 * IB_QPT_GSI creates the software wrapper around GSI, and MLX5_IB_QPT_HW_GSI
182 * creates the actual hardware QP.
184 #define MLX5_IB_QPT_HW_GSI IB_QPT_RESERVED2
185 #define MLX5_IB_WR_UMR IB_WR_RESERVED1
187 /* Private QP creation flags to be passed in ib_qp_init_attr.create_flags.
189 * These flags are intended for internal use by the mlx5_ib driver, and they
190 * rely on the range reserved for that use in the ib_qp_create_flags enum.
193 /* Create a UD QP whose source QP number is 1 */
194 static inline enum ib_qp_create_flags mlx5_ib_create_qp_sqpn_qp1(void)
196 return IB_QP_CREATE_RESERVED_START;
207 struct wr_list *w_list;
211 /* serialize post to the work queue
234 struct ib_umem *umem;
236 unsigned int page_shift;
256 struct mlx5_ib_rwq_ind_table {
257 struct ib_rwq_ind_table ib_rwq_ind_tbl;
262 * Connect-IB can trigger up to four concurrent pagefaults
265 enum mlx5_ib_pagefault_context {
266 MLX5_IB_PAGEFAULT_RESPONDER_READ,
267 MLX5_IB_PAGEFAULT_REQUESTOR_READ,
268 MLX5_IB_PAGEFAULT_RESPONDER_WRITE,
269 MLX5_IB_PAGEFAULT_REQUESTOR_WRITE,
270 MLX5_IB_PAGEFAULT_CONTEXTS
273 static inline enum mlx5_ib_pagefault_context
274 mlx5_ib_get_pagefault_context(struct mlx5_pagefault *pagefault)
276 return pagefault->flags & (MLX5_PFAULT_REQUESTOR | MLX5_PFAULT_WRITE);
279 struct mlx5_ib_pfault {
280 struct work_struct work;
281 struct mlx5_pagefault mpfault;
284 struct mlx5_ib_ubuffer {
285 struct ib_umem *umem;
290 struct mlx5_ib_qp_base {
291 struct mlx5_ib_qp *container_mibqp;
292 struct mlx5_core_qp mqp;
293 struct mlx5_ib_ubuffer ubuffer;
296 struct mlx5_ib_qp_trans {
297 struct mlx5_ib_qp_base base;
304 struct mlx5_ib_rss_qp {
309 struct mlx5_ib_qp_base base;
310 struct mlx5_ib_wq *rq;
311 struct mlx5_ib_ubuffer ubuffer;
312 struct mlx5_db *doorbell;
318 struct mlx5_ib_qp_base base;
319 struct mlx5_ib_wq *sq;
320 struct mlx5_ib_ubuffer ubuffer;
321 struct mlx5_db *doorbell;
326 struct mlx5_ib_raw_packet_qp {
327 struct mlx5_ib_sq sq;
328 struct mlx5_ib_rq rq;
334 struct mlx5_ib_qp_trans trans_qp;
335 struct mlx5_ib_raw_packet_qp raw_packet_qp;
336 struct mlx5_ib_rss_qp rss_qp;
341 struct mlx5_ib_wq rq;
345 struct mlx5_ib_wq sq;
347 /* serialize qp state modifications
359 /* only for user space QPs. For kernel
360 * we have it from the bf object
366 /* Store signature errors */
369 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
371 * A flag that is true for QP's that are in a state that doesn't
372 * allow page faults, and shouldn't schedule any more faults.
374 int disable_page_faults;
376 * The disable_page_faults_lock protects a QP's disable_page_faults
377 * field, allowing for a thread to atomically check whether the QP
378 * allows page faults, and if so schedule a page fault.
380 spinlock_t disable_page_faults_lock;
381 struct mlx5_ib_pfault pagefaults[MLX5_IB_PAGEFAULT_CONTEXTS];
383 struct list_head qps_list;
384 struct list_head cq_recv_list;
385 struct list_head cq_send_list;
388 struct mlx5_ib_cq_buf {
390 struct ib_umem *umem;
395 enum mlx5_ib_qp_flags {
396 MLX5_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
397 MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
398 MLX5_IB_QP_CROSS_CHANNEL = IB_QP_CREATE_CROSS_CHANNEL,
399 MLX5_IB_QP_MANAGED_SEND = IB_QP_CREATE_MANAGED_SEND,
400 MLX5_IB_QP_MANAGED_RECV = IB_QP_CREATE_MANAGED_RECV,
401 MLX5_IB_QP_SIGNATURE_HANDLING = 1 << 5,
402 /* QP uses 1 as its source QP number */
403 MLX5_IB_QP_SQPN_QP1 = 1 << 6,
404 MLX5_IB_QP_CAP_SCATTER_FCS = 1 << 7,
408 struct ib_send_wr wr;
414 unsigned int page_shift;
421 static inline struct mlx5_umr_wr *umr_wr(struct ib_send_wr *wr)
423 return container_of(wr, struct mlx5_umr_wr, wr);
426 struct mlx5_shared_mr_info {
428 struct ib_umem *umem;
433 struct mlx5_core_cq mcq;
434 struct mlx5_ib_cq_buf buf;
437 /* serialize access to the CQ
443 struct mutex resize_mutex;
444 struct mlx5_ib_cq_buf *resize_buf;
445 struct ib_umem *resize_umem;
447 struct list_head list_send_qp;
448 struct list_head list_recv_qp;
450 struct list_head wc_list;
451 enum ib_cq_notify_flags notify_flags;
452 struct work_struct notify_work;
457 struct list_head list;
462 struct mlx5_core_srq msrq;
466 /* protect SRQ hanlding
472 struct ib_umem *umem;
473 /* serialize arming a SRQ
479 struct mlx5_ib_xrcd {
480 struct ib_xrcd ibxrcd;
484 enum mlx5_ib_mtt_access_flags {
485 MLX5_IB_MTT_READ = (1 << 0),
486 MLX5_IB_MTT_WRITE = (1 << 1),
489 #define MLX5_IB_MTT_PRESENT (MLX5_IB_MTT_READ | MLX5_IB_MTT_WRITE)
499 struct mlx5_core_mkey mmkey;
500 struct ib_umem *umem;
501 struct mlx5_shared_mr_info *smr_info;
502 struct list_head list;
506 struct mlx5_ib_dev *dev;
507 struct mlx5_create_mkey_mbox_out out;
508 struct mlx5_core_sig_ctx *sig;
511 int access_flags; /* Needed for rereg MR */
516 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
555 struct dentry *fsize;
557 struct dentry *fmiss;
558 struct dentry *flimit;
560 struct mlx5_ib_dev *dev;
561 struct work_struct work;
562 struct delayed_work dwork;
566 struct mlx5_mr_cache {
567 struct workqueue_struct *wq;
568 struct mlx5_cache_ent ent[MAX_MR_CACHE_ENTRIES];
571 unsigned long last_add;
574 struct mlx5_ib_gsi_qp;
576 struct mlx5_ib_port_resources {
577 struct mlx5_ib_resources *devr;
578 struct mlx5_ib_gsi_qp *gsi;
579 struct work_struct pkey_change_work;
582 struct mlx5_ib_resources {
589 struct mlx5_ib_port_resources ports[2];
590 /* Protects changes to the port resources */
594 struct mlx5_ib_port {
599 /* Protect mlx5_ib_get_netdev from invoking dev_hold() with a NULL
602 rwlock_t netdev_lock;
603 struct net_device *netdev;
604 struct notifier_block nb;
608 struct ib_device ib_dev;
609 struct mlx5_core_dev *mdev;
610 struct mlx5_roce roce;
611 MLX5_DECLARE_DOORBELL_LOCK(uar_lock);
613 /* serialize update of capability mask
615 struct mutex cap_mask_mutex;
617 struct umr_common umrc;
618 /* sync used page count stats
620 struct mlx5_ib_resources devr;
621 struct mlx5_mr_cache cache;
622 struct timer_list delay_timer;
624 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
625 struct ib_odp_caps odp_caps;
627 * Sleepable RCU that prevents destruction of MRs while they are still
628 * being used by a page fault handler.
630 struct srcu_struct mr_srcu;
632 struct mlx5_ib_flow_db flow_db;
633 /* protect resources needed as part of reset flow */
634 spinlock_t reset_flow_resource_lock;
635 struct list_head qp_list;
636 /* Array with num_ports elements */
637 struct mlx5_ib_port *port;
640 static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq)
642 return container_of(mcq, struct mlx5_ib_cq, mcq);
645 static inline struct mlx5_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
647 return container_of(ibxrcd, struct mlx5_ib_xrcd, ibxrcd);
650 static inline struct mlx5_ib_dev *to_mdev(struct ib_device *ibdev)
652 return container_of(ibdev, struct mlx5_ib_dev, ib_dev);
655 static inline struct mlx5_ib_cq *to_mcq(struct ib_cq *ibcq)
657 return container_of(ibcq, struct mlx5_ib_cq, ibcq);
660 static inline struct mlx5_ib_qp *to_mibqp(struct mlx5_core_qp *mqp)
662 return container_of(mqp, struct mlx5_ib_qp_base, mqp)->container_mibqp;
665 static inline struct mlx5_ib_mr *to_mibmr(struct mlx5_core_mkey *mmkey)
667 return container_of(mmkey, struct mlx5_ib_mr, mmkey);
670 static inline struct mlx5_ib_pd *to_mpd(struct ib_pd *ibpd)
672 return container_of(ibpd, struct mlx5_ib_pd, ibpd);
675 static inline struct mlx5_ib_srq *to_msrq(struct ib_srq *ibsrq)
677 return container_of(ibsrq, struct mlx5_ib_srq, ibsrq);
680 static inline struct mlx5_ib_qp *to_mqp(struct ib_qp *ibqp)
682 return container_of(ibqp, struct mlx5_ib_qp, ibqp);
685 static inline struct mlx5_ib_rwq *to_mrwq(struct ib_wq *ibwq)
687 return container_of(ibwq, struct mlx5_ib_rwq, ibwq);
690 static inline struct mlx5_ib_rwq_ind_table *to_mrwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl)
692 return container_of(ib_rwq_ind_tbl, struct mlx5_ib_rwq_ind_table, ib_rwq_ind_tbl);
695 static inline struct mlx5_ib_srq *to_mibsrq(struct mlx5_core_srq *msrq)
697 return container_of(msrq, struct mlx5_ib_srq, msrq);
700 static inline struct mlx5_ib_mr *to_mmr(struct ib_mr *ibmr)
702 return container_of(ibmr, struct mlx5_ib_mr, ibmr);
705 static inline struct mlx5_ib_mw *to_mmw(struct ib_mw *ibmw)
707 return container_of(ibmw, struct mlx5_ib_mw, ibmw);
715 static inline struct mlx5_ib_ah *to_mah(struct ib_ah *ibah)
717 return container_of(ibah, struct mlx5_ib_ah, ibah);
720 int mlx5_ib_db_map_user(struct mlx5_ib_ucontext *context, unsigned long virt,
722 void mlx5_ib_db_unmap_user(struct mlx5_ib_ucontext *context, struct mlx5_db *db);
723 void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq);
724 void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq);
725 void mlx5_ib_free_srq_wqe(struct mlx5_ib_srq *srq, int wqe_index);
726 int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey,
727 u8 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
728 const void *in_mad, void *response_mad);
729 struct ib_ah *mlx5_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
730 int mlx5_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
731 int mlx5_ib_destroy_ah(struct ib_ah *ah);
732 struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
733 struct ib_srq_init_attr *init_attr,
734 struct ib_udata *udata);
735 int mlx5_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
736 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
737 int mlx5_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr);
738 int mlx5_ib_destroy_srq(struct ib_srq *srq);
739 int mlx5_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
740 struct ib_recv_wr **bad_wr);
741 struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
742 struct ib_qp_init_attr *init_attr,
743 struct ib_udata *udata);
744 int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
745 int attr_mask, struct ib_udata *udata);
746 int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
747 struct ib_qp_init_attr *qp_init_attr);
748 int mlx5_ib_destroy_qp(struct ib_qp *qp);
749 int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
750 struct ib_send_wr **bad_wr);
751 int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
752 struct ib_recv_wr **bad_wr);
753 void *mlx5_get_send_wqe(struct mlx5_ib_qp *qp, int n);
754 int mlx5_ib_read_user_wqe(struct mlx5_ib_qp *qp, int send, int wqe_index,
755 void *buffer, u32 length,
756 struct mlx5_ib_qp_base *base);
757 struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
758 const struct ib_cq_init_attr *attr,
759 struct ib_ucontext *context,
760 struct ib_udata *udata);
761 int mlx5_ib_destroy_cq(struct ib_cq *cq);
762 int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
763 int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
764 int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
765 int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
766 struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc);
767 struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
768 u64 virt_addr, int access_flags,
769 struct ib_udata *udata);
770 struct ib_mw *mlx5_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
771 struct ib_udata *udata);
772 int mlx5_ib_dealloc_mw(struct ib_mw *mw);
773 int mlx5_ib_update_mtt(struct mlx5_ib_mr *mr, u64 start_page_index,
774 int npages, int zap);
775 int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
776 u64 length, u64 virt_addr, int access_flags,
777 struct ib_pd *pd, struct ib_udata *udata);
778 int mlx5_ib_dereg_mr(struct ib_mr *ibmr);
779 struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd,
780 enum ib_mr_type mr_type,
782 int mlx5_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
783 unsigned int *sg_offset);
784 int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
785 const struct ib_wc *in_wc, const struct ib_grh *in_grh,
786 const struct ib_mad_hdr *in, size_t in_mad_size,
787 struct ib_mad_hdr *out, size_t *out_mad_size,
788 u16 *out_mad_pkey_index);
789 struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev,
790 struct ib_ucontext *context,
791 struct ib_udata *udata);
792 int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd);
793 int mlx5_ib_get_buf_offset(u64 addr, int page_shift, u32 *offset);
794 int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port);
795 int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev,
796 struct ib_smp *out_mad);
797 int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev,
798 __be64 *sys_image_guid);
799 int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev,
801 int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev,
803 int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc);
804 int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid);
805 int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index,
807 int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index,
809 int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port,
810 struct ib_port_attr *props);
811 int mlx5_ib_query_port(struct ib_device *ibdev, u8 port,
812 struct ib_port_attr *props);
813 int mlx5_ib_init_fmr(struct mlx5_ib_dev *dev);
814 void mlx5_ib_cleanup_fmr(struct mlx5_ib_dev *dev);
815 void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift,
816 int *ncont, int *order);
817 void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
818 int page_shift, size_t offset, size_t num_pages,
819 __be64 *pas, int access_flags);
820 void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
821 int page_shift, __be64 *pas, int access_flags);
822 void mlx5_ib_copy_pas(u64 *old, u64 *new, int step, int num);
823 int mlx5_ib_get_cqe_size(struct mlx5_ib_dev *dev, struct ib_cq *ibcq);
824 int mlx5_mr_cache_init(struct mlx5_ib_dev *dev);
825 int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev);
826 int mlx5_mr_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift);
827 int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask,
828 struct ib_mr_status *mr_status);
829 struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd,
830 struct ib_wq_init_attr *init_attr,
831 struct ib_udata *udata);
832 int mlx5_ib_destroy_wq(struct ib_wq *wq);
833 int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
834 u32 wq_attr_mask, struct ib_udata *udata);
835 struct ib_rwq_ind_table *mlx5_ib_create_rwq_ind_table(struct ib_device *device,
836 struct ib_rwq_ind_table_init_attr *init_attr,
837 struct ib_udata *udata);
838 int mlx5_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table);
840 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
841 extern struct workqueue_struct *mlx5_ib_page_fault_wq;
843 void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev);
844 void mlx5_ib_mr_pfault_handler(struct mlx5_ib_qp *qp,
845 struct mlx5_ib_pfault *pfault);
846 void mlx5_ib_odp_create_qp(struct mlx5_ib_qp *qp);
847 int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev);
848 void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *ibdev);
849 int __init mlx5_ib_odp_init(void);
850 void mlx5_ib_odp_cleanup(void);
851 void mlx5_ib_qp_disable_pagefaults(struct mlx5_ib_qp *qp);
852 void mlx5_ib_qp_enable_pagefaults(struct mlx5_ib_qp *qp);
853 void mlx5_ib_invalidate_range(struct ib_umem *umem, unsigned long start,
855 #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
856 static inline void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev)
861 static inline void mlx5_ib_odp_create_qp(struct mlx5_ib_qp *qp) {}
862 static inline int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev) { return 0; }
863 static inline void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *ibdev) {}
864 static inline int mlx5_ib_odp_init(void) { return 0; }
865 static inline void mlx5_ib_odp_cleanup(void) {}
866 static inline void mlx5_ib_qp_disable_pagefaults(struct mlx5_ib_qp *qp) {}
867 static inline void mlx5_ib_qp_enable_pagefaults(struct mlx5_ib_qp *qp) {}
869 #endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
871 int mlx5_ib_get_vf_config(struct ib_device *device, int vf,
872 u8 port, struct ifla_vf_info *info);
873 int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf,
875 int mlx5_ib_get_vf_stats(struct ib_device *device, int vf,
876 u8 port, struct ifla_vf_stats *stats);
877 int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u8 port,
880 __be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, u8 port_num,
883 /* GSI QP helper functions */
884 struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
885 struct ib_qp_init_attr *init_attr);
886 int mlx5_ib_gsi_destroy_qp(struct ib_qp *qp);
887 int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr,
889 int mlx5_ib_gsi_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
891 struct ib_qp_init_attr *qp_init_attr);
892 int mlx5_ib_gsi_post_send(struct ib_qp *qp, struct ib_send_wr *wr,
893 struct ib_send_wr **bad_wr);
894 int mlx5_ib_gsi_post_recv(struct ib_qp *qp, struct ib_recv_wr *wr,
895 struct ib_recv_wr **bad_wr);
896 void mlx5_ib_gsi_pkey_change(struct mlx5_ib_gsi_qp *gsi);
898 int mlx5_ib_generate_wc(struct ib_cq *ibcq, struct ib_wc *wc);
900 static inline void init_query_mad(struct ib_smp *mad)
902 mad->base_version = 1;
903 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
904 mad->class_version = 1;
905 mad->method = IB_MGMT_METHOD_GET;
908 static inline u8 convert_access(int acc)
910 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) |
911 (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) |
912 (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) |
913 (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) |
914 MLX5_PERM_LOCAL_READ;
917 static inline int is_qp1(enum ib_qp_type qp_type)
919 return qp_type == MLX5_IB_QPT_HW_GSI;
922 #define MLX5_MAX_UMR_SHIFT 16
923 #define MLX5_MAX_UMR_PAGES (1 << MLX5_MAX_UMR_SHIFT)
925 static inline u32 check_cq_create_flags(u32 flags)
928 * It returns non-zero value for unsupported CQ
929 * create flags, otherwise it returns zero.
931 return (flags & ~(IB_CQ_FLAGS_IGNORE_OVERRUN |
932 IB_CQ_FLAGS_TIMESTAMP_COMPLETION));
935 static inline int verify_assign_uidx(u8 cqe_version, u32 cmd_uidx,
939 if ((cmd_uidx == MLX5_IB_DEFAULT_UIDX) ||
940 (cmd_uidx & ~MLX5_USER_ASSIGNED_UIDX_MASK))
942 *user_index = cmd_uidx;
944 *user_index = MLX5_IB_DEFAULT_UIDX;
949 #endif /* MLX5_IB_H */