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>
49 #include <linux/notifier.h>
51 #include <linux/mlx5/device.h>
52 #include <linux/mlx5/doorbell.h>
53 #include <linux/mlx5/eq.h>
54 #include <linux/timecounter.h>
55 #include <linux/ptp_clock_kernel.h>
58 MLX5_BOARD_ID_LEN = 64,
62 /* one minute for the sake of bringup. Generally, commands must always
63 * complete and we may need to increase this timeout value
65 MLX5_CMD_TIMEOUT_MSEC = 60 * 1000,
66 MLX5_CMD_WQ_MAX_NAME = 32,
72 CMD_STATUS_SUCCESS = 0,
78 MLX5_SQP_IEEE_1588 = 2,
80 MLX5_SQP_SYNC_UMR = 4,
88 MLX5_ATOMIC_MODE_OFFSET = 16,
89 MLX5_ATOMIC_MODE_IB_COMP = 1,
90 MLX5_ATOMIC_MODE_CX = 2,
91 MLX5_ATOMIC_MODE_8B = 3,
92 MLX5_ATOMIC_MODE_16B = 4,
93 MLX5_ATOMIC_MODE_32B = 5,
94 MLX5_ATOMIC_MODE_64B = 6,
95 MLX5_ATOMIC_MODE_128B = 7,
96 MLX5_ATOMIC_MODE_256B = 8,
100 MLX5_REG_QPTS = 0x4002,
101 MLX5_REG_QETCR = 0x4005,
102 MLX5_REG_QTCT = 0x400a,
103 MLX5_REG_QPDPM = 0x4013,
104 MLX5_REG_QCAM = 0x4019,
105 MLX5_REG_DCBX_PARAM = 0x4020,
106 MLX5_REG_DCBX_APP = 0x4021,
107 MLX5_REG_FPGA_CAP = 0x4022,
108 MLX5_REG_FPGA_CTRL = 0x4023,
109 MLX5_REG_FPGA_ACCESS_REG = 0x4024,
110 MLX5_REG_PCAP = 0x5001,
111 MLX5_REG_PMTU = 0x5003,
112 MLX5_REG_PTYS = 0x5004,
113 MLX5_REG_PAOS = 0x5006,
114 MLX5_REG_PFCC = 0x5007,
115 MLX5_REG_PPCNT = 0x5008,
116 MLX5_REG_PPTB = 0x500b,
117 MLX5_REG_PBMC = 0x500c,
118 MLX5_REG_PMAOS = 0x5012,
119 MLX5_REG_PUDE = 0x5009,
120 MLX5_REG_PMPE = 0x5010,
121 MLX5_REG_PELC = 0x500e,
122 MLX5_REG_PVLC = 0x500f,
123 MLX5_REG_PCMR = 0x5041,
124 MLX5_REG_PMLP = 0x5002,
125 MLX5_REG_PPLM = 0x5023,
126 MLX5_REG_PCAM = 0x507f,
127 MLX5_REG_NODE_DESC = 0x6001,
128 MLX5_REG_HOST_ENDIANNESS = 0x7004,
129 MLX5_REG_MCIA = 0x9014,
130 MLX5_REG_MLCR = 0x902b,
131 MLX5_REG_MTRC_CAP = 0x9040,
132 MLX5_REG_MTRC_CONF = 0x9041,
133 MLX5_REG_MTRC_STDB = 0x9042,
134 MLX5_REG_MTRC_CTRL = 0x9043,
135 MLX5_REG_MPEIN = 0x9050,
136 MLX5_REG_MPCNT = 0x9051,
137 MLX5_REG_MTPPS = 0x9053,
138 MLX5_REG_MTPPSE = 0x9054,
139 MLX5_REG_MPEGC = 0x9056,
140 MLX5_REG_MCQI = 0x9061,
141 MLX5_REG_MCC = 0x9062,
142 MLX5_REG_MCDA = 0x9063,
143 MLX5_REG_MCAM = 0x907f,
146 enum mlx5_qpts_trust_state {
147 MLX5_QPTS_TRUST_PCP = 1,
148 MLX5_QPTS_TRUST_DSCP = 2,
151 enum mlx5_dcbx_oper_mode {
152 MLX5E_DCBX_PARAM_VER_OPER_HOST = 0x0,
153 MLX5E_DCBX_PARAM_VER_OPER_AUTO = 0x3,
157 MLX5_ATOMIC_OPS_CMP_SWAP = 1 << 0,
158 MLX5_ATOMIC_OPS_FETCH_ADD = 1 << 1,
159 MLX5_ATOMIC_OPS_EXTENDED_CMP_SWAP = 1 << 2,
160 MLX5_ATOMIC_OPS_EXTENDED_FETCH_ADD = 1 << 3,
163 enum mlx5_page_fault_resume_flags {
164 MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
165 MLX5_PAGE_FAULT_RESUME_WRITE = 1 << 1,
166 MLX5_PAGE_FAULT_RESUME_RDMA = 1 << 2,
167 MLX5_PAGE_FAULT_RESUME_ERROR = 1 << 7,
176 enum port_state_policy {
177 MLX5_POLICY_DOWN = 0,
179 MLX5_POLICY_FOLLOW = 2,
180 MLX5_POLICY_INVALID = 0xffffffff
183 struct mlx5_field_desc {
188 struct mlx5_rsc_debug {
189 struct mlx5_core_dev *dev;
191 enum dbg_rsc_type type;
193 struct mlx5_field_desc fields[0];
196 enum mlx5_dev_event {
197 MLX5_DEV_EVENT_SYS_ERROR = 128, /* 0 - 127 are FW events */
198 MLX5_DEV_EVENT_PORT_AFFINITY = 129,
201 enum mlx5_port_status {
206 struct mlx5_bfreg_info {
208 int num_low_latency_bfregs;
212 * protect bfreg allocation data structs
218 u32 num_static_sys_pages;
219 u32 total_num_bfregs;
223 struct mlx5_cmd_first {
227 struct mlx5_cmd_msg {
228 struct list_head list;
229 struct cmd_msg_cache *parent;
231 struct mlx5_cmd_first first;
232 struct mlx5_cmd_mailbox *next;
235 struct mlx5_cmd_debug {
236 struct dentry *dbg_root;
237 struct dentry *dbg_in;
238 struct dentry *dbg_out;
239 struct dentry *dbg_outlen;
240 struct dentry *dbg_status;
241 struct dentry *dbg_run;
249 struct cmd_msg_cache {
250 /* protect block chain allocations
253 struct list_head head;
254 unsigned int max_inbox_size;
255 unsigned int num_ent;
259 MLX5_NUM_COMMAND_CACHES = 5,
262 struct mlx5_cmd_stats {
267 struct dentry *count;
268 /* protect command average calculations */
276 dma_addr_t alloc_dma;
287 /* protect command queue allocations
289 spinlock_t alloc_lock;
291 /* protect token allocations
293 spinlock_t token_lock;
295 unsigned long bitmask;
296 char wq_name[MLX5_CMD_WQ_MAX_NAME];
297 struct workqueue_struct *wq;
298 struct semaphore sem;
299 struct semaphore pages_sem;
301 struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
302 struct dma_pool *pool;
303 struct mlx5_cmd_debug dbg;
304 struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
305 int checksum_disabled;
306 struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
309 struct mlx5_port_caps {
316 struct mlx5_cmd_mailbox {
319 struct mlx5_cmd_mailbox *next;
322 struct mlx5_buf_list {
327 struct mlx5_frag_buf {
328 struct mlx5_buf_list *frags;
334 struct mlx5_frag_buf_ctrl {
335 struct mlx5_buf_list *frags;
344 struct mlx5_core_psv {
356 struct mlx5_core_sig_ctx {
357 struct mlx5_core_psv psv_memory;
358 struct mlx5_core_psv psv_wire;
359 struct ib_sig_err err_item;
360 bool sig_status_checked;
368 MLX5_MKEY_INDIRECT_DEVX,
371 struct mlx5_core_mkey {
379 #define MLX5_24BIT_MASK ((1 << 24) - 1)
382 MLX5_RES_QP = MLX5_EVENT_QUEUE_TYPE_QP,
383 MLX5_RES_RQ = MLX5_EVENT_QUEUE_TYPE_RQ,
384 MLX5_RES_SQ = MLX5_EVENT_QUEUE_TYPE_SQ,
388 MLX5_RES_DCT = MLX5_EVENT_QUEUE_TYPE_DCT,
391 struct mlx5_core_rsc_common {
392 enum mlx5_res_type res;
394 struct completion free;
397 struct mlx5_uars_page {
401 struct list_head list;
403 unsigned long *reg_bitmap; /* for non fast path bf regs */
404 unsigned long *fp_bitmap;
405 unsigned int reg_avail;
406 unsigned int fp_avail;
407 struct kref ref_count;
408 struct mlx5_core_dev *mdev;
411 struct mlx5_bfreg_head {
412 /* protect blue flame registers allocations */
414 struct list_head list;
417 struct mlx5_bfreg_data {
418 struct mlx5_bfreg_head reg_head;
419 struct mlx5_bfreg_head wc_head;
422 struct mlx5_sq_bfreg {
424 struct mlx5_uars_page *up;
430 struct mlx5_core_health {
431 struct health_buffer __iomem *health;
432 __be32 __iomem *health_counter;
433 struct timer_list timer;
437 /* wq spinlock to synchronize draining */
439 struct workqueue_struct *wq;
441 struct work_struct work;
442 struct delayed_work recover_work;
445 struct mlx5_qp_table {
446 struct notifier_block nb;
448 /* protect radix tree
451 struct radix_tree_root tree;
454 struct mlx5_mkey_table {
455 /* protect radix tree
458 struct radix_tree_root tree;
461 struct mlx5_vf_context {
465 enum port_state_policy policy;
468 struct mlx5_core_sriov {
469 struct mlx5_vf_context *vfs_ctx;
474 struct mlx5_fc_stats {
475 spinlock_t counters_idr_lock; /* protects counters_idr */
476 struct idr counters_idr;
477 struct list_head counters;
478 struct llist_head addlist;
479 struct llist_head dellist;
481 struct workqueue_struct *wq;
482 struct delayed_work work;
483 unsigned long next_query;
484 unsigned long sampling_interval; /* jiffies */
492 struct mlx5_eq_table;
494 struct mlx5_rate_limit {
500 struct mlx5_rl_entry {
501 struct mlx5_rate_limit rl;
506 struct mlx5_rl_table {
507 /* protect rate limit table */
508 struct mutex rl_lock;
512 struct mlx5_rl_entry *rl_entry;
515 struct mlx5_core_roce {
516 struct mlx5_flow_table *ft;
517 struct mlx5_flow_group *fg;
518 struct mlx5_flow_handle *allow_rule;
522 struct mlx5_eq_table *eq_table;
525 struct mlx5_nb pg_nb;
526 struct workqueue_struct *pg_wq;
527 struct rb_root page_root;
530 struct list_head free_list;
534 struct mlx5_core_health health;
536 /* start: qp staff */
537 struct mlx5_qp_table qp_table;
538 struct dentry *qp_debugfs;
539 struct dentry *eq_debugfs;
540 struct dentry *cq_debugfs;
541 struct dentry *cmdif_debugfs;
544 /* start: mkey staff */
545 struct mlx5_mkey_table mkey_table;
546 /* end: mkey staff */
548 /* start: alloc staff */
549 /* protect buffer alocation according to numa node */
550 struct mutex alloc_mutex;
553 struct mutex pgdir_mutex;
554 struct list_head pgdir_list;
555 /* end: alloc staff */
556 struct dentry *dbg_root;
558 /* protect mkey key part */
559 spinlock_t mkey_lock;
562 struct list_head dev_list;
563 struct list_head ctx_list;
565 struct mlx5_events *events;
567 struct mlx5_flow_steering *steering;
568 struct mlx5_mpfs *mpfs;
569 struct mlx5_eswitch *eswitch;
570 struct mlx5_core_sriov sriov;
571 struct mlx5_lag *lag;
572 struct mlx5_devcom *devcom;
573 unsigned long pci_dev_data;
574 struct mlx5_core_roce roce;
575 struct mlx5_fc_stats fc_stats;
576 struct mlx5_rl_table rl_table;
578 struct mlx5_bfreg_data bfregs;
579 struct mlx5_uars_page *uar;
582 enum mlx5_device_state {
583 MLX5_DEVICE_STATE_UP,
584 MLX5_DEVICE_STATE_INTERNAL_ERROR,
587 enum mlx5_interface_state {
588 MLX5_INTERFACE_STATE_UP = BIT(0),
591 enum mlx5_pci_status {
592 MLX5_PCI_STATUS_DISABLED,
593 MLX5_PCI_STATUS_ENABLED,
596 enum mlx5_pagefault_type_flags {
597 MLX5_PFAULT_REQUESTOR = 1 << 0,
598 MLX5_PFAULT_WRITE = 1 << 1,
599 MLX5_PFAULT_RDMA = 1 << 2,
603 /* protects tirs list changes while tirs refresh */
604 struct mutex list_lock;
605 struct list_head tirs_list;
609 struct mlx5e_resources {
612 struct mlx5_core_mkey mkey;
613 struct mlx5_sq_bfreg bfreg;
616 #define MLX5_MAX_RESERVED_GIDS 8
618 struct mlx5_rsvd_gids {
624 #define MAX_PIN_NUM 8
626 u8 pin_caps[MAX_PIN_NUM];
627 struct work_struct out_work;
628 u64 start[MAX_PIN_NUM];
633 struct mlx5_core_dev *mdev;
634 struct mlx5_nb pps_nb;
636 struct cyclecounter cycles;
637 struct timecounter tc;
638 struct hwtstamp_config hwtstamp_config;
640 unsigned long overflow_period;
641 struct delayed_work overflow_work;
642 struct ptp_clock *ptp;
643 struct ptp_clock_info ptp_info;
644 struct mlx5_pps pps_info;
647 struct mlx5_fw_tracer;
650 struct mlx5_core_dev {
651 struct device *device;
652 struct pci_dev *pdev;
654 struct mutex pci_status_mutex;
655 enum mlx5_pci_status pci_status;
657 char board_id[MLX5_BOARD_ID_LEN];
659 struct mlx5_port_caps port_caps[MLX5_MAX_PORTS];
661 u32 hca_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
662 u32 hca_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
663 u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
664 u32 mcam[MLX5_ST_SZ_DW(mcam_reg)];
665 u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
666 u32 qcam[MLX5_ST_SZ_DW(qcam_reg)];
670 phys_addr_t iseg_base;
671 struct mlx5_init_seg __iomem *iseg;
672 phys_addr_t bar_addr;
673 enum mlx5_device_state state;
674 /* sync interface state */
675 struct mutex intf_state_mutex;
676 unsigned long intf_state;
677 struct mlx5_priv priv;
678 struct mlx5_profile *profile;
681 struct mlx5e_resources mlx5e_res;
682 struct mlx5_vxlan *vxlan;
684 struct mlx5_rsvd_gids reserved_gids;
687 #ifdef CONFIG_MLX5_FPGA
688 struct mlx5_fpga_device *fpga;
690 struct mlx5_clock clock;
691 struct mlx5_ib_clock_info *clock_info;
692 struct mlx5_fw_tracer *tracer;
698 struct mlx5_db_pgdir *pgdir;
699 struct mlx5_ib_user_db_page *user_page;
706 MLX5_COMP_EQ_SIZE = 1024,
710 MLX5_PTYS_IB = 1 << 0,
711 MLX5_PTYS_EN = 1 << 2,
714 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
717 MLX5_CMD_ENT_STATE_PENDING_COMP,
720 struct mlx5_cmd_work_ent {
722 struct mlx5_cmd_msg *in;
723 struct mlx5_cmd_msg *out;
726 mlx5_cmd_cbk_t callback;
727 struct delayed_work cb_timeout_work;
730 struct completion done;
731 struct mlx5_cmd *cmd;
732 struct work_struct work;
733 struct mlx5_cmd_layout *lay;
749 enum phy_port_state {
753 struct mlx5_hca_vport_context {
758 enum port_state_policy policy;
759 enum phy_port_state phys_state;
760 enum ib_port_state vport_state;
761 u8 port_physical_state;
770 u8 init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
775 u16 qkey_violation_counter;
776 u16 pkey_violation_counter;
780 static inline void *mlx5_buf_offset(struct mlx5_frag_buf *buf, int offset)
782 return buf->frags->buf + offset;
785 #define STRUCT_FIELD(header, field) \
786 .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \
787 .struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field
789 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
791 return pci_get_drvdata(pdev);
794 extern struct dentry *mlx5_debugfs_root;
796 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
798 return ioread32be(&dev->iseg->fw_rev) & 0xffff;
801 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
803 return ioread32be(&dev->iseg->fw_rev) >> 16;
806 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
808 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
811 static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
813 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
816 static inline u32 mlx5_base_mkey(const u32 key)
818 return key & 0xffffff00u;
821 static inline void mlx5_init_fbc_offset(struct mlx5_buf_list *frags,
822 u8 log_stride, u8 log_sz,
824 struct mlx5_frag_buf_ctrl *fbc)
827 fbc->log_stride = log_stride;
828 fbc->log_sz = log_sz;
829 fbc->sz_m1 = (1 << fbc->log_sz) - 1;
830 fbc->log_frag_strides = PAGE_SHIFT - fbc->log_stride;
831 fbc->frag_sz_m1 = (1 << fbc->log_frag_strides) - 1;
832 fbc->strides_offset = strides_offset;
835 static inline void mlx5_init_fbc(struct mlx5_buf_list *frags,
836 u8 log_stride, u8 log_sz,
837 struct mlx5_frag_buf_ctrl *fbc)
839 mlx5_init_fbc_offset(frags, log_stride, log_sz, 0, fbc);
842 static inline void *mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl *fbc,
847 ix += fbc->strides_offset;
848 frag = ix >> fbc->log_frag_strides;
850 return fbc->frags[frag].buf + ((fbc->frag_sz_m1 & ix) << fbc->log_stride);
854 mlx5_frag_buf_get_idx_last_contig_stride(struct mlx5_frag_buf_ctrl *fbc, u32 ix)
856 u32 last_frag_stride_idx = (ix + fbc->strides_offset) | fbc->frag_sz_m1;
858 return min_t(u32, last_frag_stride_idx - fbc->strides_offset, fbc->sz_m1);
861 int mlx5_cmd_init(struct mlx5_core_dev *dev);
862 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
863 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
864 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
866 struct mlx5_async_ctx {
867 struct mlx5_core_dev *dev;
868 atomic_t num_inflight;
869 struct wait_queue_head wait;
872 struct mlx5_async_work;
874 typedef void (*mlx5_async_cbk_t)(int status, struct mlx5_async_work *context);
876 struct mlx5_async_work {
877 struct mlx5_async_ctx *ctx;
878 mlx5_async_cbk_t user_callback;
881 void mlx5_cmd_init_async_ctx(struct mlx5_core_dev *dev,
882 struct mlx5_async_ctx *ctx);
883 void mlx5_cmd_cleanup_async_ctx(struct mlx5_async_ctx *ctx);
884 int mlx5_cmd_exec_cb(struct mlx5_async_ctx *ctx, void *in, int in_size,
885 void *out, int out_size, mlx5_async_cbk_t callback,
886 struct mlx5_async_work *work);
888 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
890 int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
891 void *out, int out_size);
892 void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);
894 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
895 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
896 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
897 void mlx5_health_flush(struct mlx5_core_dev *dev);
898 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
899 int mlx5_health_init(struct mlx5_core_dev *dev);
900 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
901 void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health);
902 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
903 void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
904 void mlx5_drain_health_recovery(struct mlx5_core_dev *dev);
905 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
906 struct mlx5_frag_buf *buf, int node);
907 int mlx5_buf_alloc(struct mlx5_core_dev *dev,
908 int size, struct mlx5_frag_buf *buf);
909 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
910 int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
911 struct mlx5_frag_buf *buf, int node);
912 void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
913 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
914 gfp_t flags, int npages);
915 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
916 struct mlx5_cmd_mailbox *head);
917 void mlx5_init_mkey_table(struct mlx5_core_dev *dev);
918 void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev);
919 int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev,
920 struct mlx5_core_mkey *mkey,
921 struct mlx5_async_ctx *async_ctx, u32 *in,
922 int inlen, u32 *out, int outlen,
923 mlx5_async_cbk_t callback,
924 struct mlx5_async_work *context);
925 int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
926 struct mlx5_core_mkey *mkey,
928 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
929 struct mlx5_core_mkey *mkey);
930 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
931 u32 *out, int outlen);
932 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
933 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
934 int mlx5_pagealloc_init(struct mlx5_core_dev *dev);
935 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
936 void mlx5_pagealloc_start(struct mlx5_core_dev *dev);
937 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
938 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
939 s32 npages, bool ec_function);
940 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
941 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
942 void mlx5_register_debugfs(void);
943 void mlx5_unregister_debugfs(void);
945 void mlx5_fill_page_array(struct mlx5_frag_buf *buf, __be64 *pas);
946 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
947 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
949 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
950 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
952 int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
953 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
954 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
955 int size_in, void *data_out, int size_out,
956 u16 reg_num, int arg, int write);
958 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
959 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
961 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
963 const char *mlx5_command_str(int command);
964 int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
965 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
966 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
967 int npsvs, u32 *sig_index);
968 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
969 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
970 int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
971 struct mlx5_odp_caps *odp_caps);
972 int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
973 u8 port_num, void *out, size_t sz);
975 int mlx5_init_rl_table(struct mlx5_core_dev *dev);
976 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
977 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u16 *index,
978 struct mlx5_rate_limit *rl);
979 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, struct mlx5_rate_limit *rl);
980 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
981 bool mlx5_rl_are_equal(struct mlx5_rate_limit *rl_0,
982 struct mlx5_rate_limit *rl_1);
983 int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
984 bool map_wc, bool fast_path);
985 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
987 unsigned int mlx5_comp_vectors_count(struct mlx5_core_dev *dev);
989 mlx5_comp_irq_get_affinity_mask(struct mlx5_core_dev *dev, int vector);
990 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
991 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
992 u8 roce_version, u8 roce_l3_type, const u8 *gid,
993 const u8 *mac, bool vlan, u16 vlan_id, u8 port_num);
995 static inline int fw_initializing(struct mlx5_core_dev *dev)
997 return ioread32be(&dev->iseg->initializing) >> 31;
1000 static inline u32 mlx5_mkey_to_idx(u32 mkey)
1005 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
1007 return mkey_idx << 8;
1010 static inline u8 mlx5_mkey_variant(u32 mkey)
1016 MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0,
1017 MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1,
1021 MR_CACHE_LAST_STD_ENTRY = 20,
1022 MLX5_IMR_MTT_CACHE_ENTRY,
1023 MLX5_IMR_KSM_CACHE_ENTRY,
1024 MAX_MR_CACHE_ENTRIES
1028 MLX5_INTERFACE_PROTOCOL_IB = 0,
1029 MLX5_INTERFACE_PROTOCOL_ETH = 1,
1032 struct mlx5_interface {
1033 void * (*add)(struct mlx5_core_dev *dev);
1034 void (*remove)(struct mlx5_core_dev *dev, void *context);
1035 int (*attach)(struct mlx5_core_dev *dev, void *context);
1036 void (*detach)(struct mlx5_core_dev *dev, void *context);
1038 struct list_head list;
1041 int mlx5_register_interface(struct mlx5_interface *intf);
1042 void mlx5_unregister_interface(struct mlx5_interface *intf);
1043 int mlx5_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb);
1044 int mlx5_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb);
1046 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
1048 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
1049 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
1050 bool mlx5_lag_is_roce(struct mlx5_core_dev *dev);
1051 bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev);
1052 bool mlx5_lag_is_multipath(struct mlx5_core_dev *dev);
1053 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
1054 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
1055 int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
1059 struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
1060 void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
1062 #ifdef CONFIG_MLX5_CORE_IPOIB
1063 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1064 struct ib_device *ibdev,
1066 void (*setup)(struct net_device *));
1067 #endif /* CONFIG_MLX5_CORE_IPOIB */
1068 int mlx5_rdma_rn_get_params(struct mlx5_core_dev *mdev,
1069 struct ib_device *device,
1070 struct rdma_netdev_alloc_params *params);
1072 struct mlx5_profile {
1078 } mr_cache[MAX_MR_CACHE_ENTRIES];
1082 MLX5_PCI_DEV_IS_VF = 1 << 0,
1085 static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev)
1087 return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF);
1090 static inline bool mlx5_core_is_ecpf(struct mlx5_core_dev *dev)
1092 return dev->caps.embedded_cpu;
1095 static inline bool mlx5_core_is_ecpf_esw_manager(struct mlx5_core_dev *dev)
1097 return dev->caps.embedded_cpu && MLX5_CAP_GEN(dev, eswitch_manager);
1100 static inline bool mlx5_ecpf_vport_exists(struct mlx5_core_dev *dev)
1102 return mlx5_core_is_pf(dev) && MLX5_CAP_ESW(dev, ecpf_vport_exists);
1105 #define MLX5_HOST_PF_MAX_VFS (127u)
1106 static inline u16 mlx5_core_max_vfs(struct mlx5_core_dev *dev)
1108 if (mlx5_core_is_ecpf_esw_manager(dev))
1109 return MLX5_HOST_PF_MAX_VFS;
1111 return pci_sriov_get_totalvfs(dev->pdev);
1114 static inline int mlx5_get_gid_table_len(u16 param)
1117 pr_warn("gid table length is zero\n");
1121 return 8 * (1 << param);
1124 static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
1126 return !!(dev->priv.rl_table.max_size);
1129 static inline int mlx5_core_is_mp_slave(struct mlx5_core_dev *dev)
1131 return MLX5_CAP_GEN(dev, affiliate_nic_vport_criteria) &&
1132 MLX5_CAP_GEN(dev, num_vhca_ports) <= 1;
1135 static inline int mlx5_core_is_mp_master(struct mlx5_core_dev *dev)
1137 return MLX5_CAP_GEN(dev, num_vhca_ports) > 1;
1140 static inline int mlx5_core_mp_enabled(struct mlx5_core_dev *dev)
1142 return mlx5_core_is_mp_slave(dev) ||
1143 mlx5_core_is_mp_master(dev);
1146 static inline int mlx5_core_native_port_num(struct mlx5_core_dev *dev)
1148 if (!mlx5_core_mp_enabled(dev))
1151 return MLX5_CAP_GEN(dev, native_port_num);
1155 MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
1158 #endif /* MLX5_DRIVER_H */