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/spinlock_types.h>
40 #include <linux/semaphore.h>
41 #include <linux/slab.h>
42 #include <linux/vmalloc.h>
43 #include <linux/radix-tree.h>
44 #include <linux/workqueue.h>
45 #include <linux/mempool.h>
46 #include <linux/interrupt.h>
47 #include <linux/idr.h>
49 #include <linux/mlx5/device.h>
50 #include <linux/mlx5/doorbell.h>
51 #include <linux/mlx5/srq.h>
52 #include <linux/timecounter.h>
53 #include <linux/ptp_clock_kernel.h>
56 MLX5_BOARD_ID_LEN = 64,
57 MLX5_MAX_NAME_LEN = 16,
61 /* one minute for the sake of bringup. Generally, commands must always
62 * complete and we may need to increase this timeout value
64 MLX5_CMD_TIMEOUT_MSEC = 60 * 1000,
65 MLX5_CMD_WQ_MAX_NAME = 32,
71 CMD_STATUS_SUCCESS = 0,
77 MLX5_SQP_IEEE_1588 = 2,
79 MLX5_SQP_SYNC_UMR = 4,
87 MLX5_EQ_VEC_PAGES = 0,
89 MLX5_EQ_VEC_ASYNC = 2,
90 MLX5_EQ_VEC_PFAULT = 3,
91 MLX5_EQ_VEC_COMP_BASE,
95 MLX5_MAX_IRQ_NAME = 32
99 MLX5_ATOMIC_MODE_IB_COMP = 1 << 16,
100 MLX5_ATOMIC_MODE_CX = 2 << 16,
101 MLX5_ATOMIC_MODE_8B = 3 << 16,
102 MLX5_ATOMIC_MODE_16B = 4 << 16,
103 MLX5_ATOMIC_MODE_32B = 5 << 16,
104 MLX5_ATOMIC_MODE_64B = 6 << 16,
105 MLX5_ATOMIC_MODE_128B = 7 << 16,
106 MLX5_ATOMIC_MODE_256B = 8 << 16,
110 MLX5_REG_QETCR = 0x4005,
111 MLX5_REG_QTCT = 0x400a,
112 MLX5_REG_DCBX_PARAM = 0x4020,
113 MLX5_REG_DCBX_APP = 0x4021,
114 MLX5_REG_FPGA_CAP = 0x4022,
115 MLX5_REG_FPGA_CTRL = 0x4023,
116 MLX5_REG_FPGA_ACCESS_REG = 0x4024,
117 MLX5_REG_PCAP = 0x5001,
118 MLX5_REG_PMTU = 0x5003,
119 MLX5_REG_PTYS = 0x5004,
120 MLX5_REG_PAOS = 0x5006,
121 MLX5_REG_PFCC = 0x5007,
122 MLX5_REG_PPCNT = 0x5008,
123 MLX5_REG_PMAOS = 0x5012,
124 MLX5_REG_PUDE = 0x5009,
125 MLX5_REG_PMPE = 0x5010,
126 MLX5_REG_PELC = 0x500e,
127 MLX5_REG_PVLC = 0x500f,
128 MLX5_REG_PCMR = 0x5041,
129 MLX5_REG_PMLP = 0x5002,
130 MLX5_REG_PCAM = 0x507f,
131 MLX5_REG_NODE_DESC = 0x6001,
132 MLX5_REG_HOST_ENDIANNESS = 0x7004,
133 MLX5_REG_MCIA = 0x9014,
134 MLX5_REG_MLCR = 0x902b,
135 MLX5_REG_MPCNT = 0x9051,
136 MLX5_REG_MTPPS = 0x9053,
137 MLX5_REG_MTPPSE = 0x9054,
138 MLX5_REG_MCQI = 0x9061,
139 MLX5_REG_MCC = 0x9062,
140 MLX5_REG_MCDA = 0x9063,
141 MLX5_REG_MCAM = 0x907f,
144 enum mlx5_dcbx_oper_mode {
145 MLX5E_DCBX_PARAM_VER_OPER_HOST = 0x0,
146 MLX5E_DCBX_PARAM_VER_OPER_AUTO = 0x3,
150 MLX5_ATOMIC_OPS_CMP_SWAP = 1 << 0,
151 MLX5_ATOMIC_OPS_FETCH_ADD = 1 << 1,
154 enum mlx5_page_fault_resume_flags {
155 MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
156 MLX5_PAGE_FAULT_RESUME_WRITE = 1 << 1,
157 MLX5_PAGE_FAULT_RESUME_RDMA = 1 << 2,
158 MLX5_PAGE_FAULT_RESUME_ERROR = 1 << 7,
167 enum port_state_policy {
168 MLX5_POLICY_DOWN = 0,
170 MLX5_POLICY_FOLLOW = 2,
171 MLX5_POLICY_INVALID = 0xffffffff
174 struct mlx5_field_desc {
179 struct mlx5_rsc_debug {
180 struct mlx5_core_dev *dev;
182 enum dbg_rsc_type type;
184 struct mlx5_field_desc fields[0];
187 enum mlx5_dev_event {
188 MLX5_DEV_EVENT_SYS_ERROR,
189 MLX5_DEV_EVENT_PORT_UP,
190 MLX5_DEV_EVENT_PORT_DOWN,
191 MLX5_DEV_EVENT_PORT_INITIALIZED,
192 MLX5_DEV_EVENT_LID_CHANGE,
193 MLX5_DEV_EVENT_PKEY_CHANGE,
194 MLX5_DEV_EVENT_GUID_CHANGE,
195 MLX5_DEV_EVENT_CLIENT_REREG,
197 MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT,
200 enum mlx5_port_status {
208 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
213 struct mlx5_bfreg_info {
215 int num_low_latency_bfregs;
219 * protect bfreg allocation data structs
227 struct mlx5_cmd_first {
231 struct mlx5_cmd_msg {
232 struct list_head list;
233 struct cmd_msg_cache *parent;
235 struct mlx5_cmd_first first;
236 struct mlx5_cmd_mailbox *next;
239 struct mlx5_cmd_debug {
240 struct dentry *dbg_root;
241 struct dentry *dbg_in;
242 struct dentry *dbg_out;
243 struct dentry *dbg_outlen;
244 struct dentry *dbg_status;
245 struct dentry *dbg_run;
253 struct cmd_msg_cache {
254 /* protect block chain allocations
257 struct list_head head;
258 unsigned int max_inbox_size;
259 unsigned int num_ent;
263 MLX5_NUM_COMMAND_CACHES = 5,
266 struct mlx5_cmd_stats {
271 struct dentry *count;
272 /* protect command average calculations */
278 dma_addr_t alloc_dma;
289 /* protect command queue allocations
291 spinlock_t alloc_lock;
293 /* protect token allocations
295 spinlock_t token_lock;
297 unsigned long bitmask;
298 char wq_name[MLX5_CMD_WQ_MAX_NAME];
299 struct workqueue_struct *wq;
300 struct semaphore sem;
301 struct semaphore pages_sem;
303 struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
304 struct dma_pool *pool;
305 struct mlx5_cmd_debug dbg;
306 struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
307 int checksum_disabled;
308 struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
311 struct mlx5_port_caps {
318 struct mlx5_cmd_mailbox {
321 struct mlx5_cmd_mailbox *next;
324 struct mlx5_buf_list {
330 struct mlx5_buf_list direct;
336 struct mlx5_frag_buf {
337 struct mlx5_buf_list *frags;
343 struct mlx5_eq_tasklet {
344 struct list_head list;
345 struct list_head process_list;
346 struct tasklet_struct task;
347 /* lock on completion tasklet list */
351 struct mlx5_eq_pagefault {
352 struct work_struct work;
353 /* Pagefaults lock */
355 struct workqueue_struct *wq;
360 struct mlx5_core_dev *dev;
361 __be32 __iomem *doorbell;
369 struct list_head list;
371 struct mlx5_rsc_debug *dbg;
372 enum mlx5_eq_type type;
374 struct mlx5_eq_tasklet tasklet_ctx;
375 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
376 struct mlx5_eq_pagefault pf_ctx;
381 struct mlx5_core_psv {
393 struct mlx5_core_sig_ctx {
394 struct mlx5_core_psv psv_memory;
395 struct mlx5_core_psv psv_wire;
396 struct ib_sig_err err_item;
397 bool sig_status_checked;
407 struct mlx5_core_mkey {
415 #define MLX5_24BIT_MASK ((1 << 24) - 1)
418 MLX5_RES_QP = MLX5_EVENT_QUEUE_TYPE_QP,
419 MLX5_RES_RQ = MLX5_EVENT_QUEUE_TYPE_RQ,
420 MLX5_RES_SQ = MLX5_EVENT_QUEUE_TYPE_SQ,
426 struct mlx5_core_rsc_common {
427 enum mlx5_res_type res;
429 struct completion free;
432 struct mlx5_core_srq {
433 struct mlx5_core_rsc_common common; /* must be first */
437 int max_avail_gather;
439 void (*event) (struct mlx5_core_srq *, enum mlx5_event);
442 struct completion free;
445 struct mlx5_eq_table {
446 void __iomem *update_ci;
447 void __iomem *update_arm_ci;
448 struct list_head comp_eqs_list;
449 struct mlx5_eq pages_eq;
450 struct mlx5_eq async_eq;
451 struct mlx5_eq cmd_eq;
452 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
453 struct mlx5_eq pfault_eq;
455 int num_comp_vectors;
461 struct mlx5_uars_page {
465 struct list_head list;
467 unsigned long *reg_bitmap; /* for non fast path bf regs */
468 unsigned long *fp_bitmap;
469 unsigned int reg_avail;
470 unsigned int fp_avail;
471 struct kref ref_count;
472 struct mlx5_core_dev *mdev;
475 struct mlx5_bfreg_head {
476 /* protect blue flame registers allocations */
478 struct list_head list;
481 struct mlx5_bfreg_data {
482 struct mlx5_bfreg_head reg_head;
483 struct mlx5_bfreg_head wc_head;
486 struct mlx5_sq_bfreg {
488 struct mlx5_uars_page *up;
494 struct mlx5_core_health {
495 struct health_buffer __iomem *health;
496 __be32 __iomem *health_counter;
497 struct timer_list timer;
501 /* wq spinlock to synchronize draining */
503 struct workqueue_struct *wq;
505 struct work_struct work;
506 struct delayed_work recover_work;
509 struct mlx5_cq_table {
510 /* protect radix tree
513 struct radix_tree_root tree;
516 struct mlx5_qp_table {
517 /* protect radix tree
520 struct radix_tree_root tree;
523 struct mlx5_srq_table {
524 /* protect radix tree
527 struct radix_tree_root tree;
530 struct mlx5_mkey_table {
531 /* protect radix tree
534 struct radix_tree_root tree;
537 struct mlx5_vf_context {
541 enum port_state_policy policy;
544 struct mlx5_core_sriov {
545 struct mlx5_vf_context *vfs_ctx;
550 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 struct list_head tirs_list;
750 struct mlx5e_resources {
753 struct mlx5_core_mkey mkey;
754 struct mlx5_sq_bfreg bfreg;
757 #define MLX5_MAX_RESERVED_GIDS 8
759 struct mlx5_rsvd_gids {
765 #define MAX_PIN_NUM 8
767 u8 pin_caps[MAX_PIN_NUM];
768 struct work_struct out_work;
769 u64 start[MAX_PIN_NUM];
775 struct cyclecounter cycles;
776 struct timecounter tc;
777 struct hwtstamp_config hwtstamp_config;
779 unsigned long overflow_period;
780 struct delayed_work overflow_work;
781 struct ptp_clock *ptp;
782 struct ptp_clock_info ptp_info;
783 struct mlx5_pps pps_info;
786 struct mlx5_core_dev {
787 struct pci_dev *pdev;
789 struct mutex pci_status_mutex;
790 enum mlx5_pci_status pci_status;
792 char board_id[MLX5_BOARD_ID_LEN];
794 struct mlx5_port_caps port_caps[MLX5_MAX_PORTS];
796 u32 hca_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
797 u32 hca_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
798 u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
799 u32 mcam[MLX5_ST_SZ_DW(mcam_reg)];
800 u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
802 phys_addr_t iseg_base;
803 struct mlx5_init_seg __iomem *iseg;
804 enum mlx5_device_state state;
805 /* sync interface state */
806 struct mutex intf_state_mutex;
807 unsigned long intf_state;
808 void (*event) (struct mlx5_core_dev *dev,
809 enum mlx5_dev_event event,
810 unsigned long param);
811 struct mlx5_priv priv;
812 struct mlx5_profile *profile;
815 struct mlx5e_resources mlx5e_res;
817 struct mlx5_rsvd_gids reserved_gids;
820 #ifdef CONFIG_MLX5_FPGA
821 struct mlx5_fpga_device *fpga;
823 #ifdef CONFIG_RFS_ACCEL
824 struct cpu_rmap *rmap;
826 struct mlx5_clock clock;
832 struct mlx5_db_pgdir *pgdir;
833 struct mlx5_ib_user_db_page *user_page;
840 MLX5_COMP_EQ_SIZE = 1024,
844 MLX5_PTYS_IB = 1 << 0,
845 MLX5_PTYS_EN = 1 << 2,
848 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
851 MLX5_CMD_ENT_STATE_PENDING_COMP,
854 struct mlx5_cmd_work_ent {
856 struct mlx5_cmd_msg *in;
857 struct mlx5_cmd_msg *out;
860 mlx5_cmd_cbk_t callback;
861 struct delayed_work cb_timeout_work;
864 struct completion done;
865 struct mlx5_cmd *cmd;
866 struct work_struct work;
867 struct mlx5_cmd_layout *lay;
883 enum phy_port_state {
887 struct mlx5_hca_vport_context {
892 enum port_state_policy policy;
893 enum phy_port_state phys_state;
894 enum ib_port_state vport_state;
895 u8 port_physical_state;
904 u8 init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
909 u16 qkey_violation_counter;
910 u16 pkey_violation_counter;
914 static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset)
916 return buf->direct.buf + offset;
919 #define STRUCT_FIELD(header, field) \
920 .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \
921 .struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field
923 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
925 return pci_get_drvdata(pdev);
928 extern struct dentry *mlx5_debugfs_root;
930 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
932 return ioread32be(&dev->iseg->fw_rev) & 0xffff;
935 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
937 return ioread32be(&dev->iseg->fw_rev) >> 16;
940 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
942 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
945 static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
947 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
950 static inline u32 mlx5_base_mkey(const u32 key)
952 return key & 0xffffff00u;
955 int mlx5_cmd_init(struct mlx5_core_dev *dev);
956 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
957 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
958 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
960 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
962 int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
963 void *out, int out_size, mlx5_cmd_cbk_t callback,
965 int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
966 void *out, int out_size);
967 void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);
969 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
970 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
971 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
972 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
973 int mlx5_health_init(struct mlx5_core_dev *dev);
974 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
975 void mlx5_stop_health_poll(struct mlx5_core_dev *dev);
976 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
977 void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
978 void mlx5_drain_health_recovery(struct mlx5_core_dev *dev);
979 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
980 struct mlx5_buf *buf, int node);
981 int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, struct mlx5_buf *buf);
982 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf);
983 int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
984 struct mlx5_frag_buf *buf, int node);
985 void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
986 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
987 gfp_t flags, int npages);
988 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
989 struct mlx5_cmd_mailbox *head);
990 int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
991 struct mlx5_srq_attr *in);
992 int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
993 int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
994 struct mlx5_srq_attr *out);
995 int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
996 u16 lwm, int is_srq);
997 void mlx5_init_mkey_table(struct mlx5_core_dev *dev);
998 void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev);
999 int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev,
1000 struct mlx5_core_mkey *mkey,
1002 u32 *out, int outlen,
1003 mlx5_cmd_cbk_t callback, void *context);
1004 int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
1005 struct mlx5_core_mkey *mkey,
1006 u32 *in, int inlen);
1007 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
1008 struct mlx5_core_mkey *mkey);
1009 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
1010 u32 *out, int outlen);
1011 int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *_mkey,
1013 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
1014 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
1015 int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
1016 u16 opmod, u8 port);
1017 void mlx5_pagealloc_init(struct mlx5_core_dev *dev);
1018 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
1019 int mlx5_pagealloc_start(struct mlx5_core_dev *dev);
1020 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
1021 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
1023 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
1024 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
1025 void mlx5_register_debugfs(void);
1026 void mlx5_unregister_debugfs(void);
1027 int mlx5_eq_init(struct mlx5_core_dev *dev);
1028 void mlx5_eq_cleanup(struct mlx5_core_dev *dev);
1029 void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas);
1030 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
1031 void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn);
1032 void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
1033 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
1034 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
1035 void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced);
1036 void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type);
1037 int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
1038 int nent, u64 mask, const char *name,
1039 enum mlx5_eq_type type);
1040 int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
1041 int mlx5_start_eqs(struct mlx5_core_dev *dev);
1042 int mlx5_stop_eqs(struct mlx5_core_dev *dev);
1043 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
1044 unsigned int *irqn);
1045 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1046 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1048 int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
1049 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
1050 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
1051 int size_in, void *data_out, int size_out,
1052 u16 reg_num, int arg, int write);
1054 int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
1055 void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
1056 int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq,
1057 u32 *out, int outlen);
1058 int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev);
1059 void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev);
1060 int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev);
1061 void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev);
1062 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
1063 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
1065 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
1067 const char *mlx5_command_str(int command);
1068 int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
1069 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
1070 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
1071 int npsvs, u32 *sig_index);
1072 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
1073 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
1074 int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
1075 struct mlx5_odp_caps *odp_caps);
1076 int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
1077 u8 port_num, void *out, size_t sz);
1078 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
1079 int mlx5_core_page_fault_resume(struct mlx5_core_dev *dev, u32 token,
1080 u32 wq_num, u8 type, int error);
1083 int mlx5_init_rl_table(struct mlx5_core_dev *dev);
1084 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
1085 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u32 rate, u16 *index);
1086 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, u32 rate);
1087 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
1088 int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
1089 bool map_wc, bool fast_path);
1090 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
1092 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
1093 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
1094 u8 roce_version, u8 roce_l3_type, const u8 *gid,
1095 const u8 *mac, bool vlan, u16 vlan_id);
1097 static inline int fw_initializing(struct mlx5_core_dev *dev)
1099 return ioread32be(&dev->iseg->initializing) >> 31;
1102 static inline u32 mlx5_mkey_to_idx(u32 mkey)
1107 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
1109 return mkey_idx << 8;
1112 static inline u8 mlx5_mkey_variant(u32 mkey)
1118 MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0,
1119 MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1,
1123 MR_CACHE_LAST_STD_ENTRY = 20,
1124 MLX5_IMR_MTT_CACHE_ENTRY,
1125 MLX5_IMR_KSM_CACHE_ENTRY,
1126 MAX_MR_CACHE_ENTRIES
1130 MLX5_INTERFACE_PROTOCOL_IB = 0,
1131 MLX5_INTERFACE_PROTOCOL_ETH = 1,
1134 struct mlx5_interface {
1135 void * (*add)(struct mlx5_core_dev *dev);
1136 void (*remove)(struct mlx5_core_dev *dev, void *context);
1137 int (*attach)(struct mlx5_core_dev *dev, void *context);
1138 void (*detach)(struct mlx5_core_dev *dev, void *context);
1139 void (*event)(struct mlx5_core_dev *dev, void *context,
1140 enum mlx5_dev_event event, unsigned long param);
1141 void (*pfault)(struct mlx5_core_dev *dev,
1143 struct mlx5_pagefault *pfault);
1144 void * (*get_dev)(void *context);
1146 struct list_head list;
1149 void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
1150 int mlx5_register_interface(struct mlx5_interface *intf);
1151 void mlx5_unregister_interface(struct mlx5_interface *intf);
1152 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
1154 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
1155 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
1156 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
1157 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
1158 struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
1159 void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
1161 #ifndef CONFIG_MLX5_CORE_IPOIB
1163 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1164 struct ib_device *ibdev,
1166 void (*setup)(struct net_device *))
1168 return ERR_PTR(-EOPNOTSUPP);
1171 static inline void mlx5_rdma_netdev_free(struct net_device *netdev) {}
1173 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1174 struct ib_device *ibdev,
1176 void (*setup)(struct net_device *));
1177 void mlx5_rdma_netdev_free(struct net_device *netdev);
1178 #endif /* CONFIG_MLX5_CORE_IPOIB */
1180 struct mlx5_profile {
1186 } mr_cache[MAX_MR_CACHE_ENTRIES];
1190 MLX5_PCI_DEV_IS_VF = 1 << 0,
1193 static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev)
1195 return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF);
1198 static inline int mlx5_get_gid_table_len(u16 param)
1201 pr_warn("gid table length is zero\n");
1205 return 8 * (1 << param);
1208 static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
1210 return !!(dev->priv.rl_table.max_size);
1214 MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
1217 static inline const struct cpumask *
1218 mlx5_get_vector_affinity(struct mlx5_core_dev *dev, int vector)
1220 return pci_irq_get_affinity(dev->pdev, MLX5_EQ_VEC_COMP_BASE + vector);
1223 #endif /* MLX5_DRIVER_H */