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/completion.h>
38 #include <linux/pci.h>
39 #include <linux/irq.h>
40 #include <linux/spinlock_types.h>
41 #include <linux/semaphore.h>
42 #include <linux/slab.h>
43 #include <linux/vmalloc.h>
44 #include <linux/radix-tree.h>
45 #include <linux/workqueue.h>
46 #include <linux/mempool.h>
47 #include <linux/interrupt.h>
48 #include <linux/idr.h>
50 #include <linux/mlx5/device.h>
51 #include <linux/mlx5/doorbell.h>
52 #include <linux/mlx5/srq.h>
55 MLX5_BOARD_ID_LEN = 64,
56 MLX5_MAX_NAME_LEN = 16,
60 /* one minute for the sake of bringup. Generally, commands must always
61 * complete and we may need to increase this timeout value
63 MLX5_CMD_TIMEOUT_MSEC = 60 * 1000,
64 MLX5_CMD_WQ_MAX_NAME = 32,
70 CMD_STATUS_SUCCESS = 0,
76 MLX5_SQP_IEEE_1588 = 2,
78 MLX5_SQP_SYNC_UMR = 4,
86 MLX5_EQ_VEC_PAGES = 0,
88 MLX5_EQ_VEC_ASYNC = 2,
89 MLX5_EQ_VEC_PFAULT = 3,
90 MLX5_EQ_VEC_COMP_BASE,
94 MLX5_MAX_IRQ_NAME = 32
98 MLX5_ATOMIC_MODE_IB_COMP = 1 << 16,
99 MLX5_ATOMIC_MODE_CX = 2 << 16,
100 MLX5_ATOMIC_MODE_8B = 3 << 16,
101 MLX5_ATOMIC_MODE_16B = 4 << 16,
102 MLX5_ATOMIC_MODE_32B = 5 << 16,
103 MLX5_ATOMIC_MODE_64B = 6 << 16,
104 MLX5_ATOMIC_MODE_128B = 7 << 16,
105 MLX5_ATOMIC_MODE_256B = 8 << 16,
109 MLX5_REG_QETCR = 0x4005,
110 MLX5_REG_QTCT = 0x400a,
111 MLX5_REG_DCBX_PARAM = 0x4020,
112 MLX5_REG_DCBX_APP = 0x4021,
113 MLX5_REG_FPGA_CAP = 0x4022,
114 MLX5_REG_FPGA_CTRL = 0x4023,
115 MLX5_REG_FPGA_ACCESS_REG = 0x4024,
116 MLX5_REG_PCAP = 0x5001,
117 MLX5_REG_PMTU = 0x5003,
118 MLX5_REG_PTYS = 0x5004,
119 MLX5_REG_PAOS = 0x5006,
120 MLX5_REG_PFCC = 0x5007,
121 MLX5_REG_PPCNT = 0x5008,
122 MLX5_REG_PMAOS = 0x5012,
123 MLX5_REG_PUDE = 0x5009,
124 MLX5_REG_PMPE = 0x5010,
125 MLX5_REG_PELC = 0x500e,
126 MLX5_REG_PVLC = 0x500f,
127 MLX5_REG_PCMR = 0x5041,
128 MLX5_REG_PMLP = 0x5002,
129 MLX5_REG_PCAM = 0x507f,
130 MLX5_REG_NODE_DESC = 0x6001,
131 MLX5_REG_HOST_ENDIANNESS = 0x7004,
132 MLX5_REG_MCIA = 0x9014,
133 MLX5_REG_MLCR = 0x902b,
134 MLX5_REG_MPCNT = 0x9051,
135 MLX5_REG_MTPPS = 0x9053,
136 MLX5_REG_MTPPSE = 0x9054,
137 MLX5_REG_MCQI = 0x9061,
138 MLX5_REG_MCC = 0x9062,
139 MLX5_REG_MCDA = 0x9063,
140 MLX5_REG_MCAM = 0x907f,
143 enum mlx5_dcbx_oper_mode {
144 MLX5E_DCBX_PARAM_VER_OPER_HOST = 0x0,
145 MLX5E_DCBX_PARAM_VER_OPER_AUTO = 0x3,
149 MLX5_ATOMIC_OPS_CMP_SWAP = 1 << 0,
150 MLX5_ATOMIC_OPS_FETCH_ADD = 1 << 1,
153 enum mlx5_page_fault_resume_flags {
154 MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
155 MLX5_PAGE_FAULT_RESUME_WRITE = 1 << 1,
156 MLX5_PAGE_FAULT_RESUME_RDMA = 1 << 2,
157 MLX5_PAGE_FAULT_RESUME_ERROR = 1 << 7,
166 enum port_state_policy {
167 MLX5_POLICY_DOWN = 0,
169 MLX5_POLICY_FOLLOW = 2,
170 MLX5_POLICY_INVALID = 0xffffffff
173 struct mlx5_field_desc {
178 struct mlx5_rsc_debug {
179 struct mlx5_core_dev *dev;
181 enum dbg_rsc_type type;
183 struct mlx5_field_desc fields[0];
186 enum mlx5_dev_event {
187 MLX5_DEV_EVENT_SYS_ERROR,
188 MLX5_DEV_EVENT_PORT_UP,
189 MLX5_DEV_EVENT_PORT_DOWN,
190 MLX5_DEV_EVENT_PORT_INITIALIZED,
191 MLX5_DEV_EVENT_LID_CHANGE,
192 MLX5_DEV_EVENT_PKEY_CHANGE,
193 MLX5_DEV_EVENT_GUID_CHANGE,
194 MLX5_DEV_EVENT_CLIENT_REREG,
196 MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT,
199 enum mlx5_port_status {
207 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
212 struct mlx5_bfreg_info {
214 int num_low_latency_bfregs;
218 * protect bfreg allocation data structs
226 struct mlx5_cmd_first {
230 struct mlx5_cmd_msg {
231 struct list_head list;
232 struct cmd_msg_cache *parent;
234 struct mlx5_cmd_first first;
235 struct mlx5_cmd_mailbox *next;
238 struct mlx5_cmd_debug {
239 struct dentry *dbg_root;
240 struct dentry *dbg_in;
241 struct dentry *dbg_out;
242 struct dentry *dbg_outlen;
243 struct dentry *dbg_status;
244 struct dentry *dbg_run;
252 struct cmd_msg_cache {
253 /* protect block chain allocations
256 struct list_head head;
257 unsigned int max_inbox_size;
258 unsigned int num_ent;
262 MLX5_NUM_COMMAND_CACHES = 5,
265 struct mlx5_cmd_stats {
270 struct dentry *count;
271 /* protect command average calculations */
277 dma_addr_t alloc_dma;
288 /* protect command queue allocations
290 spinlock_t alloc_lock;
292 /* protect token allocations
294 spinlock_t token_lock;
296 unsigned long bitmask;
297 char wq_name[MLX5_CMD_WQ_MAX_NAME];
298 struct workqueue_struct *wq;
299 struct semaphore sem;
300 struct semaphore pages_sem;
302 struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
303 struct dma_pool *pool;
304 struct mlx5_cmd_debug dbg;
305 struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
306 int checksum_disabled;
307 struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
310 struct mlx5_port_caps {
317 struct mlx5_cmd_mailbox {
320 struct mlx5_cmd_mailbox *next;
323 struct mlx5_buf_list {
329 struct mlx5_buf_list direct;
335 struct mlx5_frag_buf {
336 struct mlx5_buf_list *frags;
342 struct mlx5_eq_tasklet {
343 struct list_head list;
344 struct list_head process_list;
345 struct tasklet_struct task;
346 /* lock on completion tasklet list */
350 struct mlx5_eq_pagefault {
351 struct work_struct work;
352 /* Pagefaults lock */
354 struct workqueue_struct *wq;
359 struct mlx5_core_dev *dev;
360 __be32 __iomem *doorbell;
368 struct list_head list;
370 struct mlx5_rsc_debug *dbg;
371 enum mlx5_eq_type type;
373 struct mlx5_eq_tasklet tasklet_ctx;
374 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
375 struct mlx5_eq_pagefault pf_ctx;
380 struct mlx5_core_psv {
392 struct mlx5_core_sig_ctx {
393 struct mlx5_core_psv psv_memory;
394 struct mlx5_core_psv psv_wire;
395 struct ib_sig_err err_item;
396 bool sig_status_checked;
406 struct mlx5_core_mkey {
414 #define MLX5_24BIT_MASK ((1 << 24) - 1)
417 MLX5_RES_QP = MLX5_EVENT_QUEUE_TYPE_QP,
418 MLX5_RES_RQ = MLX5_EVENT_QUEUE_TYPE_RQ,
419 MLX5_RES_SQ = MLX5_EVENT_QUEUE_TYPE_SQ,
425 struct mlx5_core_rsc_common {
426 enum mlx5_res_type res;
428 struct completion free;
431 struct mlx5_core_srq {
432 struct mlx5_core_rsc_common common; /* must be first */
436 size_t max_avail_gather;
438 void (*event) (struct mlx5_core_srq *, enum mlx5_event);
441 struct completion free;
444 struct mlx5_eq_table {
445 void __iomem *update_ci;
446 void __iomem *update_arm_ci;
447 struct list_head comp_eqs_list;
448 struct mlx5_eq pages_eq;
449 struct mlx5_eq async_eq;
450 struct mlx5_eq cmd_eq;
451 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
452 struct mlx5_eq pfault_eq;
454 int num_comp_vectors;
460 struct mlx5_uars_page {
464 struct list_head list;
466 unsigned long *reg_bitmap; /* for non fast path bf regs */
467 unsigned long *fp_bitmap;
468 unsigned int reg_avail;
469 unsigned int fp_avail;
470 struct kref ref_count;
471 struct mlx5_core_dev *mdev;
474 struct mlx5_bfreg_head {
475 /* protect blue flame registers allocations */
477 struct list_head list;
480 struct mlx5_bfreg_data {
481 struct mlx5_bfreg_head reg_head;
482 struct mlx5_bfreg_head wc_head;
485 struct mlx5_sq_bfreg {
487 struct mlx5_uars_page *up;
493 struct mlx5_core_health {
494 struct health_buffer __iomem *health;
495 __be32 __iomem *health_counter;
496 struct timer_list timer;
500 /* wq spinlock to synchronize draining */
502 struct workqueue_struct *wq;
504 struct work_struct work;
505 struct delayed_work recover_work;
508 struct mlx5_cq_table {
509 /* protect radix tree
512 struct radix_tree_root tree;
515 struct mlx5_qp_table {
516 /* protect radix tree
519 struct radix_tree_root tree;
522 struct mlx5_srq_table {
523 /* protect radix tree
526 struct radix_tree_root tree;
529 struct mlx5_mkey_table {
530 /* protect radix tree
533 struct radix_tree_root tree;
536 struct mlx5_vf_context {
540 enum port_state_policy policy;
543 struct mlx5_core_sriov {
544 struct mlx5_vf_context *vfs_ctx;
549 struct mlx5_irq_info {
551 char name[MLX5_MAX_IRQ_NAME];
554 struct mlx5_fc_stats {
555 struct rb_root counters;
556 struct list_head addlist;
557 /* protect addlist add/splice operations */
558 spinlock_t addlist_lock;
560 struct workqueue_struct *wq;
561 struct delayed_work work;
562 unsigned long next_query;
563 unsigned long sampling_interval; /* jiffies */
569 struct mlx5_pagefault;
571 struct mlx5_rl_entry {
577 struct mlx5_rl_table {
578 /* protect rate limit table */
579 struct mutex rl_lock;
583 struct mlx5_rl_entry *rl_entry;
586 enum port_module_event_status_type {
587 MLX5_MODULE_STATUS_PLUGGED = 0x1,
588 MLX5_MODULE_STATUS_UNPLUGGED = 0x2,
589 MLX5_MODULE_STATUS_ERROR = 0x3,
590 MLX5_MODULE_STATUS_NUM = 0x3,
593 enum port_module_event_error_type {
594 MLX5_MODULE_EVENT_ERROR_POWER_BUDGET_EXCEEDED,
595 MLX5_MODULE_EVENT_ERROR_LONG_RANGE_FOR_NON_MLNX_CABLE_MODULE,
596 MLX5_MODULE_EVENT_ERROR_BUS_STUCK,
597 MLX5_MODULE_EVENT_ERROR_NO_EEPROM_RETRY_TIMEOUT,
598 MLX5_MODULE_EVENT_ERROR_ENFORCE_PART_NUMBER_LIST,
599 MLX5_MODULE_EVENT_ERROR_UNKNOWN_IDENTIFIER,
600 MLX5_MODULE_EVENT_ERROR_HIGH_TEMPERATURE,
601 MLX5_MODULE_EVENT_ERROR_BAD_CABLE,
602 MLX5_MODULE_EVENT_ERROR_UNKNOWN,
603 MLX5_MODULE_EVENT_ERROR_NUM,
606 struct mlx5_port_module_event_stats {
607 u64 status_counters[MLX5_MODULE_STATUS_NUM];
608 u64 error_counters[MLX5_MODULE_EVENT_ERROR_NUM];
612 char name[MLX5_MAX_NAME_LEN];
613 struct mlx5_eq_table eq_table;
614 struct mlx5_irq_info *irq_info;
617 struct workqueue_struct *pg_wq;
618 struct rb_root page_root;
621 struct list_head free_list;
624 struct mlx5_core_health health;
626 struct mlx5_srq_table srq_table;
628 /* start: qp staff */
629 struct mlx5_qp_table qp_table;
630 struct dentry *qp_debugfs;
631 struct dentry *eq_debugfs;
632 struct dentry *cq_debugfs;
633 struct dentry *cmdif_debugfs;
636 /* start: cq staff */
637 struct mlx5_cq_table cq_table;
640 /* start: mkey staff */
641 struct mlx5_mkey_table mkey_table;
642 /* end: mkey staff */
644 /* start: alloc staff */
645 /* protect buffer alocation according to numa node */
646 struct mutex alloc_mutex;
649 struct mutex pgdir_mutex;
650 struct list_head pgdir_list;
651 /* end: alloc staff */
652 struct dentry *dbg_root;
654 /* protect mkey key part */
655 spinlock_t mkey_lock;
658 struct list_head dev_list;
659 struct list_head ctx_list;
662 struct list_head waiting_events_list;
663 bool is_accum_events;
665 struct mlx5_flow_steering *steering;
666 struct mlx5_mpfs *mpfs;
667 struct mlx5_eswitch *eswitch;
668 struct mlx5_core_sriov sriov;
669 struct mlx5_lag *lag;
670 unsigned long pci_dev_data;
671 struct mlx5_fc_stats fc_stats;
672 struct mlx5_rl_table rl_table;
674 struct mlx5_port_module_event_stats pme_stats;
676 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
677 void (*pfault)(struct mlx5_core_dev *dev,
679 struct mlx5_pagefault *pfault);
681 struct srcu_struct pfault_srcu;
683 struct mlx5_bfreg_data bfregs;
684 struct mlx5_uars_page *uar;
687 enum mlx5_device_state {
688 MLX5_DEVICE_STATE_UP,
689 MLX5_DEVICE_STATE_INTERNAL_ERROR,
692 enum mlx5_interface_state {
693 MLX5_INTERFACE_STATE_UP = BIT(0),
696 enum mlx5_pci_status {
697 MLX5_PCI_STATUS_DISABLED,
698 MLX5_PCI_STATUS_ENABLED,
701 enum mlx5_pagefault_type_flags {
702 MLX5_PFAULT_REQUESTOR = 1 << 0,
703 MLX5_PFAULT_WRITE = 1 << 1,
704 MLX5_PFAULT_RDMA = 1 << 2,
707 /* Contains the details of a pagefault. */
708 struct mlx5_pagefault {
714 /* Initiator or send message responder pagefault details. */
716 /* Received packet size, only valid for responders. */
719 * Number of resource holding WQE, depends on type.
723 * WQE index. Refers to either the send queue or
724 * receive queue, according to event_subtype.
728 /* RDMA responder pagefault details */
732 * Received packet size, minimal size page fault
733 * resolution required for forward progress.
742 struct work_struct work;
746 /* protects tirs list changes while tirs refresh */
747 struct mutex list_lock;
748 struct list_head tirs_list;
752 struct mlx5e_resources {
755 struct mlx5_core_mkey mkey;
756 struct mlx5_sq_bfreg bfreg;
759 #define MLX5_MAX_RESERVED_GIDS 8
761 struct mlx5_rsvd_gids {
767 struct mlx5_core_dev {
768 struct pci_dev *pdev;
770 struct mutex pci_status_mutex;
771 enum mlx5_pci_status pci_status;
773 char board_id[MLX5_BOARD_ID_LEN];
775 struct mlx5_port_caps port_caps[MLX5_MAX_PORTS];
777 u32 hca_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
778 u32 hca_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
779 u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
780 u32 mcam[MLX5_ST_SZ_DW(mcam_reg)];
781 u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
783 phys_addr_t iseg_base;
784 struct mlx5_init_seg __iomem *iseg;
785 enum mlx5_device_state state;
786 /* sync interface state */
787 struct mutex intf_state_mutex;
788 unsigned long intf_state;
789 void (*event) (struct mlx5_core_dev *dev,
790 enum mlx5_dev_event event,
791 unsigned long param);
792 struct mlx5_priv priv;
793 struct mlx5_profile *profile;
796 struct mlx5e_resources mlx5e_res;
798 struct mlx5_rsvd_gids reserved_gids;
801 #ifdef CONFIG_MLX5_FPGA
802 struct mlx5_fpga_device *fpga;
804 #ifdef CONFIG_RFS_ACCEL
805 struct cpu_rmap *rmap;
812 struct mlx5_db_pgdir *pgdir;
813 struct mlx5_ib_user_db_page *user_page;
820 MLX5_COMP_EQ_SIZE = 1024,
824 MLX5_PTYS_IB = 1 << 0,
825 MLX5_PTYS_EN = 1 << 2,
828 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
831 MLX5_CMD_ENT_STATE_PENDING_COMP,
834 struct mlx5_cmd_work_ent {
836 struct mlx5_cmd_msg *in;
837 struct mlx5_cmd_msg *out;
840 mlx5_cmd_cbk_t callback;
841 struct delayed_work cb_timeout_work;
844 struct completion handling;
845 struct completion done;
846 struct mlx5_cmd *cmd;
847 struct work_struct work;
848 struct mlx5_cmd_layout *lay;
864 enum phy_port_state {
868 struct mlx5_hca_vport_context {
873 enum port_state_policy policy;
874 enum phy_port_state phys_state;
875 enum ib_port_state vport_state;
876 u8 port_physical_state;
885 u8 init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
890 u16 qkey_violation_counter;
891 u16 pkey_violation_counter;
895 static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset)
897 return buf->direct.buf + offset;
900 #define STRUCT_FIELD(header, field) \
901 .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \
902 .struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field
904 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
906 return pci_get_drvdata(pdev);
909 extern struct dentry *mlx5_debugfs_root;
911 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
913 return ioread32be(&dev->iseg->fw_rev) & 0xffff;
916 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
918 return ioread32be(&dev->iseg->fw_rev) >> 16;
921 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
923 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
926 static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
928 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
931 static inline u32 mlx5_base_mkey(const u32 key)
933 return key & 0xffffff00u;
936 int mlx5_cmd_init(struct mlx5_core_dev *dev);
937 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
938 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
939 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
941 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
943 int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
944 void *out, int out_size, mlx5_cmd_cbk_t callback,
946 int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
947 void *out, int out_size);
948 void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);
950 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
951 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
952 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
953 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
954 int mlx5_health_init(struct mlx5_core_dev *dev);
955 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
956 void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health);
957 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
958 void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
959 void mlx5_drain_health_recovery(struct mlx5_core_dev *dev);
960 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
961 struct mlx5_buf *buf, int node);
962 int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, struct mlx5_buf *buf);
963 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf);
964 int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
965 struct mlx5_frag_buf *buf, int node);
966 void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
967 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
968 gfp_t flags, int npages);
969 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
970 struct mlx5_cmd_mailbox *head);
971 int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
972 struct mlx5_srq_attr *in);
973 int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
974 int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
975 struct mlx5_srq_attr *out);
976 int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
977 u16 lwm, int is_srq);
978 void mlx5_init_mkey_table(struct mlx5_core_dev *dev);
979 void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev);
980 int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev,
981 struct mlx5_core_mkey *mkey,
983 u32 *out, int outlen,
984 mlx5_cmd_cbk_t callback, void *context);
985 int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
986 struct mlx5_core_mkey *mkey,
988 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
989 struct mlx5_core_mkey *mkey);
990 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
991 u32 *out, int outlen);
992 int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *_mkey,
994 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
995 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
996 int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
998 void mlx5_pagealloc_init(struct mlx5_core_dev *dev);
999 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
1000 int mlx5_pagealloc_start(struct mlx5_core_dev *dev);
1001 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
1002 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
1004 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
1005 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
1006 void mlx5_register_debugfs(void);
1007 void mlx5_unregister_debugfs(void);
1008 int mlx5_eq_init(struct mlx5_core_dev *dev);
1009 void mlx5_eq_cleanup(struct mlx5_core_dev *dev);
1010 void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas);
1011 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
1012 void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn);
1013 void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
1014 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
1015 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
1016 void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced);
1017 void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type);
1018 int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
1019 int nent, u64 mask, const char *name,
1020 enum mlx5_eq_type type);
1021 int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
1022 int mlx5_start_eqs(struct mlx5_core_dev *dev);
1023 void mlx5_stop_eqs(struct mlx5_core_dev *dev);
1024 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
1025 unsigned int *irqn);
1026 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1027 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1029 int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
1030 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
1031 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
1032 int size_in, void *data_out, int size_out,
1033 u16 reg_num, int arg, int write);
1035 int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
1036 void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
1037 int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq,
1038 u32 *out, int outlen);
1039 int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev);
1040 void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev);
1041 int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev);
1042 void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev);
1043 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
1044 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
1046 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
1048 const char *mlx5_command_str(int command);
1049 int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
1050 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
1051 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
1052 int npsvs, u32 *sig_index);
1053 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
1054 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
1055 int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
1056 struct mlx5_odp_caps *odp_caps);
1057 int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
1058 u8 port_num, void *out, size_t sz);
1059 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
1060 int mlx5_core_page_fault_resume(struct mlx5_core_dev *dev, u32 token,
1061 u32 wq_num, u8 type, int error);
1064 int mlx5_init_rl_table(struct mlx5_core_dev *dev);
1065 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
1066 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u32 rate, u16 *index);
1067 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, u32 rate);
1068 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
1069 int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
1070 bool map_wc, bool fast_path);
1071 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
1073 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
1074 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
1075 u8 roce_version, u8 roce_l3_type, const u8 *gid,
1076 const u8 *mac, bool vlan, u16 vlan_id);
1078 static inline int fw_initializing(struct mlx5_core_dev *dev)
1080 return ioread32be(&dev->iseg->initializing) >> 31;
1083 static inline u32 mlx5_mkey_to_idx(u32 mkey)
1088 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
1090 return mkey_idx << 8;
1093 static inline u8 mlx5_mkey_variant(u32 mkey)
1099 MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0,
1100 MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1,
1104 MR_CACHE_LAST_STD_ENTRY = 20,
1105 MLX5_IMR_MTT_CACHE_ENTRY,
1106 MLX5_IMR_KSM_CACHE_ENTRY,
1107 MAX_MR_CACHE_ENTRIES
1111 MLX5_INTERFACE_PROTOCOL_IB = 0,
1112 MLX5_INTERFACE_PROTOCOL_ETH = 1,
1115 struct mlx5_interface {
1116 void * (*add)(struct mlx5_core_dev *dev);
1117 void (*remove)(struct mlx5_core_dev *dev, void *context);
1118 int (*attach)(struct mlx5_core_dev *dev, void *context);
1119 void (*detach)(struct mlx5_core_dev *dev, void *context);
1120 void (*event)(struct mlx5_core_dev *dev, void *context,
1121 enum mlx5_dev_event event, unsigned long param);
1122 void (*pfault)(struct mlx5_core_dev *dev,
1124 struct mlx5_pagefault *pfault);
1125 void * (*get_dev)(void *context);
1127 struct list_head list;
1130 void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
1131 int mlx5_register_interface(struct mlx5_interface *intf);
1132 void mlx5_unregister_interface(struct mlx5_interface *intf);
1133 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
1135 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
1136 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
1137 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
1138 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
1139 struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
1140 void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
1142 #ifndef CONFIG_MLX5_CORE_IPOIB
1144 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1145 struct ib_device *ibdev,
1147 void (*setup)(struct net_device *))
1149 return ERR_PTR(-EOPNOTSUPP);
1152 static inline void mlx5_rdma_netdev_free(struct net_device *netdev) {}
1154 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1155 struct ib_device *ibdev,
1157 void (*setup)(struct net_device *));
1158 void mlx5_rdma_netdev_free(struct net_device *netdev);
1159 #endif /* CONFIG_MLX5_CORE_IPOIB */
1161 struct mlx5_profile {
1167 } mr_cache[MAX_MR_CACHE_ENTRIES];
1171 MLX5_PCI_DEV_IS_VF = 1 << 0,
1174 static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev)
1176 return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF);
1179 static inline int mlx5_get_gid_table_len(u16 param)
1182 pr_warn("gid table length is zero\n");
1186 return 8 * (1 << param);
1189 static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
1191 return !!(dev->priv.rl_table.max_size);
1195 MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
1198 static inline const struct cpumask *
1199 mlx5_get_vector_affinity_hint(struct mlx5_core_dev *dev, int vector)
1201 return dev->priv.irq_info[vector + MLX5_EQ_VEC_COMP_BASE].mask;
1204 #endif /* MLX5_DRIVER_H */