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>
53 #include <linux/timecounter.h>
54 #include <linux/ptp_clock_kernel.h>
57 MLX5_BOARD_ID_LEN = 64,
58 MLX5_MAX_NAME_LEN = 16,
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_EQ_VEC_PAGES = 0,
90 MLX5_EQ_VEC_ASYNC = 2,
91 MLX5_EQ_VEC_PFAULT = 3,
92 MLX5_EQ_VEC_COMP_BASE,
96 MLX5_MAX_IRQ_NAME = 32
100 MLX5_ATOMIC_MODE_IB_COMP = 1 << 16,
101 MLX5_ATOMIC_MODE_CX = 2 << 16,
102 MLX5_ATOMIC_MODE_8B = 3 << 16,
103 MLX5_ATOMIC_MODE_16B = 4 << 16,
104 MLX5_ATOMIC_MODE_32B = 5 << 16,
105 MLX5_ATOMIC_MODE_64B = 6 << 16,
106 MLX5_ATOMIC_MODE_128B = 7 << 16,
107 MLX5_ATOMIC_MODE_256B = 8 << 16,
111 MLX5_REG_QPTS = 0x4002,
112 MLX5_REG_QETCR = 0x4005,
113 MLX5_REG_QTCT = 0x400a,
114 MLX5_REG_QPDPM = 0x4013,
115 MLX5_REG_QCAM = 0x4019,
116 MLX5_REG_DCBX_PARAM = 0x4020,
117 MLX5_REG_DCBX_APP = 0x4021,
118 MLX5_REG_FPGA_CAP = 0x4022,
119 MLX5_REG_FPGA_CTRL = 0x4023,
120 MLX5_REG_FPGA_ACCESS_REG = 0x4024,
121 MLX5_REG_PCAP = 0x5001,
122 MLX5_REG_PMTU = 0x5003,
123 MLX5_REG_PTYS = 0x5004,
124 MLX5_REG_PAOS = 0x5006,
125 MLX5_REG_PFCC = 0x5007,
126 MLX5_REG_PPCNT = 0x5008,
127 MLX5_REG_PPTB = 0x500b,
128 MLX5_REG_PBMC = 0x500c,
129 MLX5_REG_PMAOS = 0x5012,
130 MLX5_REG_PUDE = 0x5009,
131 MLX5_REG_PMPE = 0x5010,
132 MLX5_REG_PELC = 0x500e,
133 MLX5_REG_PVLC = 0x500f,
134 MLX5_REG_PCMR = 0x5041,
135 MLX5_REG_PMLP = 0x5002,
136 MLX5_REG_PCAM = 0x507f,
137 MLX5_REG_NODE_DESC = 0x6001,
138 MLX5_REG_HOST_ENDIANNESS = 0x7004,
139 MLX5_REG_MCIA = 0x9014,
140 MLX5_REG_MLCR = 0x902b,
141 MLX5_REG_MTRC_CAP = 0x9040,
142 MLX5_REG_MTRC_CONF = 0x9041,
143 MLX5_REG_MTRC_STDB = 0x9042,
144 MLX5_REG_MTRC_CTRL = 0x9043,
145 MLX5_REG_MPCNT = 0x9051,
146 MLX5_REG_MTPPS = 0x9053,
147 MLX5_REG_MTPPSE = 0x9054,
148 MLX5_REG_MCQI = 0x9061,
149 MLX5_REG_MCC = 0x9062,
150 MLX5_REG_MCDA = 0x9063,
151 MLX5_REG_MCAM = 0x907f,
154 enum mlx5_qpts_trust_state {
155 MLX5_QPTS_TRUST_PCP = 1,
156 MLX5_QPTS_TRUST_DSCP = 2,
159 enum mlx5_dcbx_oper_mode {
160 MLX5E_DCBX_PARAM_VER_OPER_HOST = 0x0,
161 MLX5E_DCBX_PARAM_VER_OPER_AUTO = 0x3,
164 enum mlx5_dct_atomic_mode {
165 MLX5_ATOMIC_MODE_DCT_OFF = 20,
166 MLX5_ATOMIC_MODE_DCT_NONE = 0 << MLX5_ATOMIC_MODE_DCT_OFF,
167 MLX5_ATOMIC_MODE_DCT_IB_COMP = 1 << MLX5_ATOMIC_MODE_DCT_OFF,
168 MLX5_ATOMIC_MODE_DCT_CX = 2 << MLX5_ATOMIC_MODE_DCT_OFF,
172 MLX5_ATOMIC_OPS_CMP_SWAP = 1 << 0,
173 MLX5_ATOMIC_OPS_FETCH_ADD = 1 << 1,
176 enum mlx5_page_fault_resume_flags {
177 MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
178 MLX5_PAGE_FAULT_RESUME_WRITE = 1 << 1,
179 MLX5_PAGE_FAULT_RESUME_RDMA = 1 << 2,
180 MLX5_PAGE_FAULT_RESUME_ERROR = 1 << 7,
189 enum port_state_policy {
190 MLX5_POLICY_DOWN = 0,
192 MLX5_POLICY_FOLLOW = 2,
193 MLX5_POLICY_INVALID = 0xffffffff
196 struct mlx5_field_desc {
201 struct mlx5_rsc_debug {
202 struct mlx5_core_dev *dev;
204 enum dbg_rsc_type type;
206 struct mlx5_field_desc fields[0];
209 enum mlx5_dev_event {
210 MLX5_DEV_EVENT_SYS_ERROR,
211 MLX5_DEV_EVENT_PORT_UP,
212 MLX5_DEV_EVENT_PORT_DOWN,
213 MLX5_DEV_EVENT_PORT_INITIALIZED,
214 MLX5_DEV_EVENT_LID_CHANGE,
215 MLX5_DEV_EVENT_PKEY_CHANGE,
216 MLX5_DEV_EVENT_GUID_CHANGE,
217 MLX5_DEV_EVENT_CLIENT_REREG,
219 MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT,
222 enum mlx5_port_status {
230 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
235 struct mlx5_bfreg_info {
237 int num_low_latency_bfregs;
241 * protect bfreg allocation data structs
247 u32 num_static_sys_pages;
248 u32 total_num_bfregs;
252 struct mlx5_cmd_first {
256 struct mlx5_cmd_msg {
257 struct list_head list;
258 struct cmd_msg_cache *parent;
260 struct mlx5_cmd_first first;
261 struct mlx5_cmd_mailbox *next;
264 struct mlx5_cmd_debug {
265 struct dentry *dbg_root;
266 struct dentry *dbg_in;
267 struct dentry *dbg_out;
268 struct dentry *dbg_outlen;
269 struct dentry *dbg_status;
270 struct dentry *dbg_run;
278 struct cmd_msg_cache {
279 /* protect block chain allocations
282 struct list_head head;
283 unsigned int max_inbox_size;
284 unsigned int num_ent;
288 MLX5_NUM_COMMAND_CACHES = 5,
291 struct mlx5_cmd_stats {
296 struct dentry *count;
297 /* protect command average calculations */
303 dma_addr_t alloc_dma;
314 /* protect command queue allocations
316 spinlock_t alloc_lock;
318 /* protect token allocations
320 spinlock_t token_lock;
322 unsigned long bitmask;
323 char wq_name[MLX5_CMD_WQ_MAX_NAME];
324 struct workqueue_struct *wq;
325 struct semaphore sem;
326 struct semaphore pages_sem;
328 struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
329 struct dma_pool *pool;
330 struct mlx5_cmd_debug dbg;
331 struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
332 int checksum_disabled;
333 struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
336 struct mlx5_port_caps {
343 struct mlx5_cmd_mailbox {
346 struct mlx5_cmd_mailbox *next;
349 struct mlx5_buf_list {
354 struct mlx5_frag_buf {
355 struct mlx5_buf_list *frags;
361 struct mlx5_frag_buf_ctrl {
362 struct mlx5_frag_buf frag_buf;
370 struct mlx5_eq_tasklet {
371 struct list_head list;
372 struct list_head process_list;
373 struct tasklet_struct task;
374 /* lock on completion tasklet list */
378 struct mlx5_eq_pagefault {
379 struct work_struct work;
380 /* Pagefaults lock */
382 struct workqueue_struct *wq;
386 struct mlx5_cq_table {
387 /* protect radix tree */
389 struct radix_tree_root tree;
393 struct mlx5_core_dev *dev;
394 struct mlx5_cq_table cq_table;
395 __be32 __iomem *doorbell;
397 struct mlx5_frag_buf buf;
403 struct list_head list;
405 struct mlx5_rsc_debug *dbg;
406 enum mlx5_eq_type type;
408 struct mlx5_eq_tasklet tasklet_ctx;
409 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
410 struct mlx5_eq_pagefault pf_ctx;
415 struct mlx5_core_psv {
427 struct mlx5_core_sig_ctx {
428 struct mlx5_core_psv psv_memory;
429 struct mlx5_core_psv psv_wire;
430 struct ib_sig_err err_item;
431 bool sig_status_checked;
441 struct mlx5_core_mkey {
449 #define MLX5_24BIT_MASK ((1 << 24) - 1)
452 MLX5_RES_QP = MLX5_EVENT_QUEUE_TYPE_QP,
453 MLX5_RES_RQ = MLX5_EVENT_QUEUE_TYPE_RQ,
454 MLX5_RES_SQ = MLX5_EVENT_QUEUE_TYPE_SQ,
458 MLX5_RES_DCT = MLX5_EVENT_QUEUE_TYPE_DCT,
461 struct mlx5_core_rsc_common {
462 enum mlx5_res_type res;
464 struct completion free;
467 struct mlx5_core_srq {
468 struct mlx5_core_rsc_common common; /* must be first */
472 size_t max_avail_gather;
474 void (*event) (struct mlx5_core_srq *, enum mlx5_event);
477 struct completion free;
480 struct mlx5_eq_table {
481 void __iomem *update_ci;
482 void __iomem *update_arm_ci;
483 struct list_head comp_eqs_list;
484 struct mlx5_eq pages_eq;
485 struct mlx5_eq async_eq;
486 struct mlx5_eq cmd_eq;
487 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
488 struct mlx5_eq pfault_eq;
490 int num_comp_vectors;
496 struct mlx5_uars_page {
500 struct list_head list;
502 unsigned long *reg_bitmap; /* for non fast path bf regs */
503 unsigned long *fp_bitmap;
504 unsigned int reg_avail;
505 unsigned int fp_avail;
506 struct kref ref_count;
507 struct mlx5_core_dev *mdev;
510 struct mlx5_bfreg_head {
511 /* protect blue flame registers allocations */
513 struct list_head list;
516 struct mlx5_bfreg_data {
517 struct mlx5_bfreg_head reg_head;
518 struct mlx5_bfreg_head wc_head;
521 struct mlx5_sq_bfreg {
523 struct mlx5_uars_page *up;
529 struct mlx5_core_health {
530 struct health_buffer __iomem *health;
531 __be32 __iomem *health_counter;
532 struct timer_list timer;
536 /* wq spinlock to synchronize draining */
538 struct workqueue_struct *wq;
540 struct work_struct work;
541 struct delayed_work recover_work;
544 struct mlx5_qp_table {
545 /* protect radix tree
548 struct radix_tree_root tree;
551 struct mlx5_srq_table {
552 /* protect radix tree
555 struct radix_tree_root tree;
558 struct mlx5_mkey_table {
559 /* protect radix tree
562 struct radix_tree_root tree;
565 struct mlx5_vf_context {
569 enum port_state_policy policy;
572 struct mlx5_core_sriov {
573 struct mlx5_vf_context *vfs_ctx;
578 struct mlx5_irq_info {
580 char name[MLX5_MAX_IRQ_NAME];
583 struct mlx5_fc_stats {
584 struct rb_root counters;
585 struct list_head addlist;
586 /* protect addlist add/splice operations */
587 spinlock_t addlist_lock;
589 struct workqueue_struct *wq;
590 struct delayed_work work;
591 unsigned long next_query;
592 unsigned long sampling_interval; /* jiffies */
598 struct mlx5_pagefault;
600 struct mlx5_rate_limit {
606 struct mlx5_rl_entry {
607 struct mlx5_rate_limit rl;
612 struct mlx5_rl_table {
613 /* protect rate limit table */
614 struct mutex rl_lock;
618 struct mlx5_rl_entry *rl_entry;
621 enum port_module_event_status_type {
622 MLX5_MODULE_STATUS_PLUGGED = 0x1,
623 MLX5_MODULE_STATUS_UNPLUGGED = 0x2,
624 MLX5_MODULE_STATUS_ERROR = 0x3,
625 MLX5_MODULE_STATUS_NUM = 0x3,
628 enum port_module_event_error_type {
629 MLX5_MODULE_EVENT_ERROR_POWER_BUDGET_EXCEEDED,
630 MLX5_MODULE_EVENT_ERROR_LONG_RANGE_FOR_NON_MLNX_CABLE_MODULE,
631 MLX5_MODULE_EVENT_ERROR_BUS_STUCK,
632 MLX5_MODULE_EVENT_ERROR_NO_EEPROM_RETRY_TIMEOUT,
633 MLX5_MODULE_EVENT_ERROR_ENFORCE_PART_NUMBER_LIST,
634 MLX5_MODULE_EVENT_ERROR_UNKNOWN_IDENTIFIER,
635 MLX5_MODULE_EVENT_ERROR_HIGH_TEMPERATURE,
636 MLX5_MODULE_EVENT_ERROR_BAD_CABLE,
637 MLX5_MODULE_EVENT_ERROR_UNKNOWN,
638 MLX5_MODULE_EVENT_ERROR_NUM,
641 struct mlx5_port_module_event_stats {
642 u64 status_counters[MLX5_MODULE_STATUS_NUM];
643 u64 error_counters[MLX5_MODULE_EVENT_ERROR_NUM];
647 char name[MLX5_MAX_NAME_LEN];
648 struct mlx5_eq_table eq_table;
649 struct mlx5_irq_info *irq_info;
652 struct workqueue_struct *pg_wq;
653 struct rb_root page_root;
656 struct list_head free_list;
659 struct mlx5_core_health health;
661 struct mlx5_srq_table srq_table;
663 /* start: qp staff */
664 struct mlx5_qp_table qp_table;
665 struct dentry *qp_debugfs;
666 struct dentry *eq_debugfs;
667 struct dentry *cq_debugfs;
668 struct dentry *cmdif_debugfs;
671 /* start: mkey staff */
672 struct mlx5_mkey_table mkey_table;
673 /* end: mkey staff */
675 /* start: alloc staff */
676 /* protect buffer alocation according to numa node */
677 struct mutex alloc_mutex;
680 struct mutex pgdir_mutex;
681 struct list_head pgdir_list;
682 /* end: alloc staff */
683 struct dentry *dbg_root;
685 /* protect mkey key part */
686 spinlock_t mkey_lock;
689 struct list_head dev_list;
690 struct list_head ctx_list;
693 struct list_head waiting_events_list;
694 bool is_accum_events;
696 struct mlx5_flow_steering *steering;
697 struct mlx5_mpfs *mpfs;
698 struct mlx5_eswitch *eswitch;
699 struct mlx5_core_sriov sriov;
700 struct mlx5_lag *lag;
701 unsigned long pci_dev_data;
702 struct mlx5_fc_stats fc_stats;
703 struct mlx5_rl_table rl_table;
705 struct mlx5_port_module_event_stats pme_stats;
707 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
708 void (*pfault)(struct mlx5_core_dev *dev,
710 struct mlx5_pagefault *pfault);
712 struct srcu_struct pfault_srcu;
714 struct mlx5_bfreg_data bfregs;
715 struct mlx5_uars_page *uar;
718 enum mlx5_device_state {
719 MLX5_DEVICE_STATE_UP,
720 MLX5_DEVICE_STATE_INTERNAL_ERROR,
723 enum mlx5_interface_state {
724 MLX5_INTERFACE_STATE_UP = BIT(0),
727 enum mlx5_pci_status {
728 MLX5_PCI_STATUS_DISABLED,
729 MLX5_PCI_STATUS_ENABLED,
732 enum mlx5_pagefault_type_flags {
733 MLX5_PFAULT_REQUESTOR = 1 << 0,
734 MLX5_PFAULT_WRITE = 1 << 1,
735 MLX5_PFAULT_RDMA = 1 << 2,
738 /* Contains the details of a pagefault. */
739 struct mlx5_pagefault {
745 /* Initiator or send message responder pagefault details. */
747 /* Received packet size, only valid for responders. */
750 * Number of resource holding WQE, depends on type.
754 * WQE index. Refers to either the send queue or
755 * receive queue, according to event_subtype.
759 /* RDMA responder pagefault details */
763 * Received packet size, minimal size page fault
764 * resolution required for forward progress.
773 struct work_struct work;
777 struct list_head tirs_list;
781 struct mlx5e_resources {
784 struct mlx5_core_mkey mkey;
785 struct mlx5_sq_bfreg bfreg;
788 #define MLX5_MAX_RESERVED_GIDS 8
790 struct mlx5_rsvd_gids {
796 #define MAX_PIN_NUM 8
798 u8 pin_caps[MAX_PIN_NUM];
799 struct work_struct out_work;
800 u64 start[MAX_PIN_NUM];
806 struct cyclecounter cycles;
807 struct timecounter tc;
808 struct hwtstamp_config hwtstamp_config;
810 unsigned long overflow_period;
811 struct delayed_work overflow_work;
812 struct mlx5_core_dev *mdev;
813 struct ptp_clock *ptp;
814 struct ptp_clock_info ptp_info;
815 struct mlx5_pps pps_info;
818 struct mlx5_core_dev {
819 struct pci_dev *pdev;
821 struct mutex pci_status_mutex;
822 enum mlx5_pci_status pci_status;
824 char board_id[MLX5_BOARD_ID_LEN];
826 struct mlx5_port_caps port_caps[MLX5_MAX_PORTS];
828 u32 hca_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
829 u32 hca_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
830 u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
831 u32 mcam[MLX5_ST_SZ_DW(mcam_reg)];
832 u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
833 u32 qcam[MLX5_ST_SZ_DW(qcam_reg)];
835 phys_addr_t iseg_base;
836 struct mlx5_init_seg __iomem *iseg;
837 enum mlx5_device_state state;
838 /* sync interface state */
839 struct mutex intf_state_mutex;
840 unsigned long intf_state;
841 void (*event) (struct mlx5_core_dev *dev,
842 enum mlx5_dev_event event,
843 unsigned long param);
844 struct mlx5_priv priv;
845 struct mlx5_profile *profile;
848 struct mlx5e_resources mlx5e_res;
850 struct mlx5_rsvd_gids reserved_gids;
853 #ifdef CONFIG_MLX5_FPGA
854 struct mlx5_fpga_device *fpga;
856 #ifdef CONFIG_RFS_ACCEL
857 struct cpu_rmap *rmap;
859 struct mlx5_clock clock;
860 struct mlx5_ib_clock_info *clock_info;
861 struct page *clock_info_page;
867 struct mlx5_db_pgdir *pgdir;
868 struct mlx5_ib_user_db_page *user_page;
875 MLX5_COMP_EQ_SIZE = 1024,
879 MLX5_PTYS_IB = 1 << 0,
880 MLX5_PTYS_EN = 1 << 2,
883 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
886 MLX5_CMD_ENT_STATE_PENDING_COMP,
889 struct mlx5_cmd_work_ent {
891 struct mlx5_cmd_msg *in;
892 struct mlx5_cmd_msg *out;
895 mlx5_cmd_cbk_t callback;
896 struct delayed_work cb_timeout_work;
899 struct completion done;
900 struct mlx5_cmd *cmd;
901 struct work_struct work;
902 struct mlx5_cmd_layout *lay;
918 enum phy_port_state {
922 struct mlx5_hca_vport_context {
927 enum port_state_policy policy;
928 enum phy_port_state phys_state;
929 enum ib_port_state vport_state;
930 u8 port_physical_state;
939 u8 init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
944 u16 qkey_violation_counter;
945 u16 pkey_violation_counter;
949 static inline void *mlx5_buf_offset(struct mlx5_frag_buf *buf, int offset)
951 return buf->frags->buf + offset;
954 #define STRUCT_FIELD(header, field) \
955 .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \
956 .struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field
958 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
960 return pci_get_drvdata(pdev);
963 extern struct dentry *mlx5_debugfs_root;
965 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
967 return ioread32be(&dev->iseg->fw_rev) & 0xffff;
970 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
972 return ioread32be(&dev->iseg->fw_rev) >> 16;
975 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
977 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
980 static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
982 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
985 static inline u32 mlx5_base_mkey(const u32 key)
987 return key & 0xffffff00u;
990 static inline void mlx5_fill_fbc(u8 log_stride, u8 log_sz,
991 struct mlx5_frag_buf_ctrl *fbc)
993 fbc->log_stride = log_stride;
994 fbc->log_sz = log_sz;
995 fbc->sz_m1 = (1 << fbc->log_sz) - 1;
996 fbc->log_frag_strides = PAGE_SHIFT - fbc->log_stride;
997 fbc->frag_sz_m1 = (1 << fbc->log_frag_strides) - 1;
1000 static inline void mlx5_core_init_cq_frag_buf(struct mlx5_frag_buf_ctrl *fbc,
1003 mlx5_fill_fbc(6 + MLX5_GET(cqc, cqc, cqe_sz),
1004 MLX5_GET(cqc, cqc, log_cq_size),
1008 static inline void *mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl *fbc,
1011 unsigned int frag = (ix >> fbc->log_frag_strides);
1013 return fbc->frag_buf.frags[frag].buf +
1014 ((fbc->frag_sz_m1 & ix) << fbc->log_stride);
1017 int mlx5_cmd_init(struct mlx5_core_dev *dev);
1018 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
1019 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
1020 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
1022 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
1024 int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
1025 void *out, int out_size, mlx5_cmd_cbk_t callback,
1027 int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
1028 void *out, int out_size);
1029 void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);
1031 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
1032 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
1033 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
1034 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
1035 int mlx5_health_init(struct mlx5_core_dev *dev);
1036 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
1037 void mlx5_stop_health_poll(struct mlx5_core_dev *dev);
1038 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
1039 void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
1040 void mlx5_drain_health_recovery(struct mlx5_core_dev *dev);
1041 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
1042 struct mlx5_frag_buf *buf, int node);
1043 int mlx5_buf_alloc(struct mlx5_core_dev *dev,
1044 int size, struct mlx5_frag_buf *buf);
1045 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
1046 int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
1047 struct mlx5_frag_buf *buf, int node);
1048 void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
1049 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
1050 gfp_t flags, int npages);
1051 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
1052 struct mlx5_cmd_mailbox *head);
1053 int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
1054 struct mlx5_srq_attr *in);
1055 int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
1056 int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
1057 struct mlx5_srq_attr *out);
1058 int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
1059 u16 lwm, int is_srq);
1060 void mlx5_init_mkey_table(struct mlx5_core_dev *dev);
1061 void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev);
1062 int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev,
1063 struct mlx5_core_mkey *mkey,
1065 u32 *out, int outlen,
1066 mlx5_cmd_cbk_t callback, void *context);
1067 int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
1068 struct mlx5_core_mkey *mkey,
1069 u32 *in, int inlen);
1070 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
1071 struct mlx5_core_mkey *mkey);
1072 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
1073 u32 *out, int outlen);
1074 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
1075 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
1076 int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
1077 u16 opmod, u8 port);
1078 void mlx5_pagealloc_init(struct mlx5_core_dev *dev);
1079 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
1080 int mlx5_pagealloc_start(struct mlx5_core_dev *dev);
1081 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
1082 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
1084 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
1085 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
1086 void mlx5_register_debugfs(void);
1087 void mlx5_unregister_debugfs(void);
1089 void mlx5_fill_page_array(struct mlx5_frag_buf *buf, __be64 *pas);
1090 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
1091 void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
1092 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
1093 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
1094 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
1095 unsigned int *irqn);
1096 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1097 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1099 int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
1100 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
1101 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
1102 int size_in, void *data_out, int size_out,
1103 u16 reg_num, int arg, int write);
1105 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
1106 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
1108 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
1110 const char *mlx5_command_str(int command);
1111 int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
1112 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
1113 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
1114 int npsvs, u32 *sig_index);
1115 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
1116 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
1117 int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
1118 struct mlx5_odp_caps *odp_caps);
1119 int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
1120 u8 port_num, void *out, size_t sz);
1121 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
1122 int mlx5_core_page_fault_resume(struct mlx5_core_dev *dev, u32 token,
1123 u32 wq_num, u8 type, int error);
1126 int mlx5_init_rl_table(struct mlx5_core_dev *dev);
1127 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
1128 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u16 *index,
1129 struct mlx5_rate_limit *rl);
1130 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, struct mlx5_rate_limit *rl);
1131 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
1132 bool mlx5_rl_are_equal(struct mlx5_rate_limit *rl_0,
1133 struct mlx5_rate_limit *rl_1);
1134 int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
1135 bool map_wc, bool fast_path);
1136 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
1138 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
1139 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
1140 u8 roce_version, u8 roce_l3_type, const u8 *gid,
1141 const u8 *mac, bool vlan, u16 vlan_id, u8 port_num);
1143 static inline int fw_initializing(struct mlx5_core_dev *dev)
1145 return ioread32be(&dev->iseg->initializing) >> 31;
1148 static inline u32 mlx5_mkey_to_idx(u32 mkey)
1153 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
1155 return mkey_idx << 8;
1158 static inline u8 mlx5_mkey_variant(u32 mkey)
1164 MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0,
1165 MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1,
1169 MR_CACHE_LAST_STD_ENTRY = 20,
1170 MLX5_IMR_MTT_CACHE_ENTRY,
1171 MLX5_IMR_KSM_CACHE_ENTRY,
1172 MAX_MR_CACHE_ENTRIES
1176 MLX5_INTERFACE_PROTOCOL_IB = 0,
1177 MLX5_INTERFACE_PROTOCOL_ETH = 1,
1180 struct mlx5_interface {
1181 void * (*add)(struct mlx5_core_dev *dev);
1182 void (*remove)(struct mlx5_core_dev *dev, void *context);
1183 int (*attach)(struct mlx5_core_dev *dev, void *context);
1184 void (*detach)(struct mlx5_core_dev *dev, void *context);
1185 void (*event)(struct mlx5_core_dev *dev, void *context,
1186 enum mlx5_dev_event event, unsigned long param);
1187 void (*pfault)(struct mlx5_core_dev *dev,
1189 struct mlx5_pagefault *pfault);
1190 void * (*get_dev)(void *context);
1192 struct list_head list;
1195 void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
1196 int mlx5_register_interface(struct mlx5_interface *intf);
1197 void mlx5_unregister_interface(struct mlx5_interface *intf);
1198 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
1200 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
1201 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
1202 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
1203 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
1204 int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
1208 struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
1209 void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
1211 #ifndef CONFIG_MLX5_CORE_IPOIB
1213 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1214 struct ib_device *ibdev,
1216 void (*setup)(struct net_device *))
1218 return ERR_PTR(-EOPNOTSUPP);
1221 static inline void mlx5_rdma_netdev_free(struct net_device *netdev) {}
1223 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1224 struct ib_device *ibdev,
1226 void (*setup)(struct net_device *));
1227 void mlx5_rdma_netdev_free(struct net_device *netdev);
1228 #endif /* CONFIG_MLX5_CORE_IPOIB */
1230 struct mlx5_profile {
1236 } mr_cache[MAX_MR_CACHE_ENTRIES];
1240 MLX5_PCI_DEV_IS_VF = 1 << 0,
1243 static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev)
1245 return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF);
1248 #define MLX5_TOTAL_VPORTS(mdev) (1 + pci_sriov_get_totalvfs((mdev)->pdev))
1249 #define MLX5_VPORT_MANAGER(mdev) \
1250 (MLX5_CAP_GEN(mdev, vport_group_manager) && \
1251 (MLX5_CAP_GEN(mdev, port_type) == MLX5_CAP_PORT_TYPE_ETH) && \
1252 mlx5_core_is_pf(mdev))
1254 static inline int mlx5_get_gid_table_len(u16 param)
1257 pr_warn("gid table length is zero\n");
1261 return 8 * (1 << param);
1264 static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
1266 return !!(dev->priv.rl_table.max_size);
1269 static inline int mlx5_core_is_mp_slave(struct mlx5_core_dev *dev)
1271 return MLX5_CAP_GEN(dev, affiliate_nic_vport_criteria) &&
1272 MLX5_CAP_GEN(dev, num_vhca_ports) <= 1;
1275 static inline int mlx5_core_is_mp_master(struct mlx5_core_dev *dev)
1277 return MLX5_CAP_GEN(dev, num_vhca_ports) > 1;
1280 static inline int mlx5_core_mp_enabled(struct mlx5_core_dev *dev)
1282 return mlx5_core_is_mp_slave(dev) ||
1283 mlx5_core_is_mp_master(dev);
1286 static inline int mlx5_core_native_port_num(struct mlx5_core_dev *dev)
1288 if (!mlx5_core_mp_enabled(dev))
1291 return MLX5_CAP_GEN(dev, native_port_num);
1295 MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
1298 static inline const struct cpumask *
1299 mlx5_get_vector_affinity_hint(struct mlx5_core_dev *dev, int vector)
1301 return dev->priv.irq_info[vector].mask;
1304 #endif /* MLX5_DRIVER_H */