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/xarray.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>
50 #include <linux/refcount.h>
51 #include <linux/auxiliary_bus.h>
52 #include <linux/mutex.h>
54 #include <linux/mlx5/device.h>
55 #include <linux/mlx5/doorbell.h>
56 #include <linux/mlx5/eq.h>
57 #include <linux/timecounter.h>
58 #include <linux/ptp_clock_kernel.h>
59 #include <net/devlink.h>
61 #define MLX5_ADEV_NAME "mlx5_core"
63 #define MLX5_IRQ_EQ_CTRL (U8_MAX)
66 MLX5_BOARD_ID_LEN = 64,
70 MLX5_CMD_WQ_MAX_NAME = 32,
76 CMD_STATUS_SUCCESS = 0,
82 MLX5_SQP_IEEE_1588 = 2,
84 MLX5_SQP_SYNC_UMR = 4,
92 MLX5_ATOMIC_MODE_OFFSET = 16,
93 MLX5_ATOMIC_MODE_IB_COMP = 1,
94 MLX5_ATOMIC_MODE_CX = 2,
95 MLX5_ATOMIC_MODE_8B = 3,
96 MLX5_ATOMIC_MODE_16B = 4,
97 MLX5_ATOMIC_MODE_32B = 5,
98 MLX5_ATOMIC_MODE_64B = 6,
99 MLX5_ATOMIC_MODE_128B = 7,
100 MLX5_ATOMIC_MODE_256B = 8,
104 MLX5_REG_SBPR = 0xb001,
105 MLX5_REG_SBCM = 0xb002,
106 MLX5_REG_QPTS = 0x4002,
107 MLX5_REG_QETCR = 0x4005,
108 MLX5_REG_QTCT = 0x400a,
109 MLX5_REG_QPDPM = 0x4013,
110 MLX5_REG_QCAM = 0x4019,
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_CORE_DUMP = 0x402e,
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_PPTB = 0x500b,
124 MLX5_REG_PBMC = 0x500c,
125 MLX5_REG_PMAOS = 0x5012,
126 MLX5_REG_PUDE = 0x5009,
127 MLX5_REG_PMPE = 0x5010,
128 MLX5_REG_PELC = 0x500e,
129 MLX5_REG_PVLC = 0x500f,
130 MLX5_REG_PCMR = 0x5041,
131 MLX5_REG_PDDR = 0x5031,
132 MLX5_REG_PMLP = 0x5002,
133 MLX5_REG_PPLM = 0x5023,
134 MLX5_REG_PCAM = 0x507f,
135 MLX5_REG_NODE_DESC = 0x6001,
136 MLX5_REG_HOST_ENDIANNESS = 0x7004,
137 MLX5_REG_MTCAP = 0x9009,
138 MLX5_REG_MTMP = 0x900A,
139 MLX5_REG_MCIA = 0x9014,
140 MLX5_REG_MFRL = 0x9028,
141 MLX5_REG_MLCR = 0x902b,
142 MLX5_REG_MRTC = 0x902d,
143 MLX5_REG_MTRC_CAP = 0x9040,
144 MLX5_REG_MTRC_CONF = 0x9041,
145 MLX5_REG_MTRC_STDB = 0x9042,
146 MLX5_REG_MTRC_CTRL = 0x9043,
147 MLX5_REG_MPEIN = 0x9050,
148 MLX5_REG_MPCNT = 0x9051,
149 MLX5_REG_MTPPS = 0x9053,
150 MLX5_REG_MTPPSE = 0x9054,
151 MLX5_REG_MTUTC = 0x9055,
152 MLX5_REG_MPEGC = 0x9056,
153 MLX5_REG_MCQS = 0x9060,
154 MLX5_REG_MCQI = 0x9061,
155 MLX5_REG_MCC = 0x9062,
156 MLX5_REG_MCDA = 0x9063,
157 MLX5_REG_MCAM = 0x907f,
158 MLX5_REG_MSECQ = 0x9155,
159 MLX5_REG_MSEES = 0x9156,
160 MLX5_REG_MIRC = 0x9162,
161 MLX5_REG_SBCAM = 0xB01F,
162 MLX5_REG_RESOURCE_DUMP = 0xC000,
163 MLX5_REG_DTOR = 0xC00E,
166 enum mlx5_qpts_trust_state {
167 MLX5_QPTS_TRUST_PCP = 1,
168 MLX5_QPTS_TRUST_DSCP = 2,
171 enum mlx5_dcbx_oper_mode {
172 MLX5E_DCBX_PARAM_VER_OPER_HOST = 0x0,
173 MLX5E_DCBX_PARAM_VER_OPER_AUTO = 0x3,
177 MLX5_ATOMIC_OPS_CMP_SWAP = 1 << 0,
178 MLX5_ATOMIC_OPS_FETCH_ADD = 1 << 1,
179 MLX5_ATOMIC_OPS_EXTENDED_CMP_SWAP = 1 << 2,
180 MLX5_ATOMIC_OPS_EXTENDED_FETCH_ADD = 1 << 3,
183 enum mlx5_page_fault_resume_flags {
184 MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
185 MLX5_PAGE_FAULT_RESUME_WRITE = 1 << 1,
186 MLX5_PAGE_FAULT_RESUME_RDMA = 1 << 2,
187 MLX5_PAGE_FAULT_RESUME_ERROR = 1 << 7,
196 enum port_state_policy {
197 MLX5_POLICY_DOWN = 0,
199 MLX5_POLICY_FOLLOW = 2,
200 MLX5_POLICY_INVALID = 0xffffffff
203 enum mlx5_coredev_type {
209 struct mlx5_field_desc {
213 struct mlx5_rsc_debug {
214 struct mlx5_core_dev *dev;
216 enum dbg_rsc_type type;
218 struct mlx5_field_desc fields[];
221 enum mlx5_dev_event {
222 MLX5_DEV_EVENT_SYS_ERROR = 128, /* 0 - 127 are FW events */
223 MLX5_DEV_EVENT_PORT_AFFINITY = 129,
224 MLX5_DEV_EVENT_MULTIPORT_ESW = 130,
227 enum mlx5_port_status {
232 enum mlx5_cmdif_state {
233 MLX5_CMDIF_STATE_UNINITIALIZED,
235 MLX5_CMDIF_STATE_DOWN,
238 struct mlx5_cmd_first {
242 struct mlx5_cmd_msg {
243 struct list_head list;
244 struct cmd_msg_cache *parent;
246 struct mlx5_cmd_first first;
247 struct mlx5_cmd_mailbox *next;
250 struct mlx5_cmd_debug {
251 struct dentry *dbg_root;
259 struct cmd_msg_cache {
260 /* protect block chain allocations
263 struct list_head head;
264 unsigned int max_inbox_size;
265 unsigned int num_ent;
269 MLX5_NUM_COMMAND_CACHES = 5,
272 struct mlx5_cmd_stats {
275 /* number of times command failed */
277 /* number of times command failed on bad status returned by FW */
278 u64 failed_mbox_status;
279 /* last command failed returned errno */
280 u32 last_failed_errno;
281 /* last bad status returned by FW */
282 u8 last_failed_mbox_status;
283 /* last command failed syndrome returned by FW */
284 u32 last_failed_syndrome;
286 /* protect command average calculations */
293 /* members which needs to be queried or reinitialized each reload */
299 unsigned long bitmask;
300 struct semaphore sem;
301 struct semaphore pages_sem;
302 struct semaphore throttle_sem;
304 enum mlx5_cmdif_state state;
306 dma_addr_t alloc_dma;
311 /* protect command queue allocations
313 spinlock_t alloc_lock;
315 /* protect token allocations
317 spinlock_t token_lock;
319 char wq_name[MLX5_CMD_WQ_MAX_NAME];
320 struct workqueue_struct *wq;
323 struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
324 struct dma_pool *pool;
325 struct mlx5_cmd_debug dbg;
326 struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
327 int checksum_disabled;
331 struct mlx5_cmd_mailbox {
334 struct mlx5_cmd_mailbox *next;
337 struct mlx5_buf_list {
342 struct mlx5_frag_buf {
343 struct mlx5_buf_list *frags;
349 struct mlx5_frag_buf_ctrl {
350 struct mlx5_buf_list *frags;
359 struct mlx5_core_psv {
371 struct mlx5_core_sig_ctx {
372 struct mlx5_core_psv psv_memory;
373 struct mlx5_core_psv psv_wire;
374 struct ib_sig_err err_item;
375 bool sig_status_checked;
380 #define MLX5_24BIT_MASK ((1 << 24) - 1)
383 MLX5_RES_QP = MLX5_EVENT_QUEUE_TYPE_QP,
384 MLX5_RES_RQ = MLX5_EVENT_QUEUE_TYPE_RQ,
385 MLX5_RES_SQ = MLX5_EVENT_QUEUE_TYPE_SQ,
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;
439 struct workqueue_struct *wq;
441 struct work_struct fatal_report_work;
442 struct work_struct report_work;
443 struct devlink_health_reporter *fw_reporter;
444 struct devlink_health_reporter *fw_fatal_reporter;
445 struct devlink_health_reporter *vnic_reporter;
446 struct delayed_work update_fw_log_ts_work;
450 MLX5_PF_NOTIFY_DISABLE_VF,
451 MLX5_PF_NOTIFY_ENABLE_VF,
454 struct mlx5_vf_context {
458 /* Valid bits are used to validate administrative guid only.
459 * Enabled after ndo_set_vf_guid
461 u8 port_guid_valid:1;
462 u8 node_guid_valid:1;
463 enum port_state_policy policy;
464 struct blocking_notifier_head notifier;
467 struct mlx5_core_sriov {
468 struct mlx5_vf_context *vfs_ctx;
474 struct mlx5_fc_pool {
475 struct mlx5_core_dev *dev;
476 struct mutex pool_lock; /* protects pool lists */
477 struct list_head fully_used;
478 struct list_head partially_used;
479 struct list_head unused;
485 struct mlx5_fc_stats {
486 spinlock_t counters_idr_lock; /* protects counters_idr */
487 struct idr counters_idr;
488 struct list_head counters;
489 struct llist_head addlist;
490 struct llist_head dellist;
492 struct workqueue_struct *wq;
493 struct delayed_work work;
494 unsigned long next_query;
495 unsigned long sampling_interval; /* jiffies */
499 bool bulk_query_alloc_failed;
500 unsigned long next_bulk_query_alloc;
501 struct mlx5_fc_pool fc_pool;
508 struct mlx5_devcom_dev;
509 struct mlx5_fw_reset;
510 struct mlx5_eq_table;
511 struct mlx5_irq_table;
512 struct mlx5_vhca_state_notifier;
513 struct mlx5_sf_dev_table;
514 struct mlx5_sf_hw_table;
515 struct mlx5_sf_table;
516 struct mlx5_crypto_dek_priv;
518 struct mlx5_rate_limit {
524 struct mlx5_rl_entry {
525 u8 rl_raw[MLX5_ST_SZ_BYTES(set_pp_rate_limit_context)];
532 struct mlx5_rl_table {
533 /* protect rate limit table */
534 struct mutex rl_lock;
538 struct mlx5_rl_entry *rl_entry;
542 struct mlx5_core_roce {
543 struct mlx5_flow_table *ft;
544 struct mlx5_flow_group *fg;
545 struct mlx5_flow_handle *allow_rule;
549 MLX5_PRIV_FLAGS_DISABLE_IB_ADEV = 1 << 0,
550 MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV = 1 << 1,
551 /* Set during device detach to block any further devices
552 * creation/deletion on drivers rescan. Unset during device attach.
554 MLX5_PRIV_FLAGS_DETACH = 1 << 2,
558 struct auxiliary_device adev;
559 struct mlx5_core_dev *mdev;
563 struct mlx5_debugfs_entries {
564 struct dentry *dbg_root;
565 struct dentry *qp_debugfs;
566 struct dentry *eq_debugfs;
567 struct dentry *cq_debugfs;
568 struct dentry *cmdif_debugfs;
569 struct dentry *pages_debugfs;
570 struct dentry *lag_debugfs;
573 enum mlx5_func_type {
584 /* IRQ table valid only for real pci devices PF or VF */
585 struct mlx5_irq_table *irq_table;
586 struct mlx5_eq_table *eq_table;
589 struct mlx5_nb pg_nb;
590 struct workqueue_struct *pg_wq;
591 struct xarray page_root_xa;
593 struct list_head free_list;
595 u32 page_counters[MLX5_FUNC_TYPE_NUM];
596 u32 fw_pages_alloc_failed;
597 u32 give_pages_dropped;
598 u32 reclaim_pages_discard;
600 struct mlx5_core_health health;
601 struct list_head traps;
603 struct mlx5_debugfs_entries dbg;
605 /* start: alloc staff */
606 /* protect buffer allocation according to numa node */
607 struct mutex alloc_mutex;
610 struct mutex pgdir_mutex;
611 struct list_head pgdir_list;
612 /* end: alloc staff */
614 struct mlx5_adev **adev;
617 struct mlx5_events *events;
618 struct mlx5_vhca_events *vhca_events;
620 struct mlx5_flow_steering *steering;
621 struct mlx5_mpfs *mpfs;
622 struct mlx5_eswitch *eswitch;
623 struct mlx5_core_sriov sriov;
624 struct mlx5_lag *lag;
626 struct mlx5_devcom_dev *devc;
627 struct mlx5_devcom_comp_dev *hca_devcom_comp;
628 struct mlx5_fw_reset *fw_reset;
629 struct mlx5_core_roce roce;
630 struct mlx5_fc_stats fc_stats;
631 struct mlx5_rl_table rl_table;
632 struct mlx5_ft_pool *ft_pool;
634 struct mlx5_bfreg_data bfregs;
635 struct mlx5_uars_page *uar;
636 #ifdef CONFIG_MLX5_SF
637 struct mlx5_vhca_state_notifier *vhca_state_notifier;
638 struct mlx5_sf_dev_table *sf_dev_table;
639 struct mlx5_core_dev *parent_mdev;
641 #ifdef CONFIG_MLX5_SF_MANAGER
642 struct mlx5_sf_hw_table *sf_hw_table;
643 struct mlx5_sf_table *sf_table;
647 enum mlx5_device_state {
648 MLX5_DEVICE_STATE_UP = 1,
649 MLX5_DEVICE_STATE_INTERNAL_ERROR,
652 enum mlx5_interface_state {
653 MLX5_INTERFACE_STATE_UP = BIT(0),
654 MLX5_BREAK_FW_WAIT = BIT(1),
657 enum mlx5_pci_status {
658 MLX5_PCI_STATUS_DISABLED,
659 MLX5_PCI_STATUS_ENABLED,
662 enum mlx5_pagefault_type_flags {
663 MLX5_PFAULT_REQUESTOR = 1 << 0,
664 MLX5_PFAULT_WRITE = 1 << 1,
665 MLX5_PFAULT_RDMA = 1 << 2,
669 /* protects tirs list changes while tirs refresh */
670 struct mutex list_lock;
671 struct list_head tirs_list;
675 struct mlx5e_resources {
676 struct mlx5e_hw_objs {
680 struct mlx5_sq_bfreg bfreg;
682 struct net_device *uplink_netdev;
683 struct mutex uplink_netdev_lock;
684 struct mlx5_crypto_dek_priv *dek_priv;
687 enum mlx5_sw_icm_type {
688 MLX5_SW_ICM_TYPE_STEERING,
689 MLX5_SW_ICM_TYPE_HEADER_MODIFY,
690 MLX5_SW_ICM_TYPE_HEADER_MODIFY_PATTERN,
693 #define MLX5_MAX_RESERVED_GIDS 8
695 struct mlx5_rsvd_gids {
701 #define MAX_PIN_NUM 8
703 u8 pin_caps[MAX_PIN_NUM];
704 struct work_struct out_work;
705 u64 start[MAX_PIN_NUM];
708 u64 min_out_pulse_duration_ns;
712 struct cyclecounter cycles;
713 struct timecounter tc;
715 unsigned long overflow_period;
716 struct delayed_work overflow_work;
720 struct mlx5_nb pps_nb;
722 struct hwtstamp_config hwtstamp_config;
723 struct ptp_clock *ptp;
724 struct ptp_clock_info ptp_info;
725 struct mlx5_pps pps_info;
726 struct mlx5_timer timer;
730 struct mlx5_fw_tracer;
735 #define MLX5_LOG_SW_ICM_BLOCK_SIZE(dev) (MLX5_CAP_DEV_MEM(dev, log_sw_icm_alloc_granularity))
736 #define MLX5_SW_ICM_BLOCK_SIZE(dev) (1 << MLX5_LOG_SW_ICM_BLOCK_SIZE(dev))
739 MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0,
740 MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1,
744 MKEY_CACHE_LAST_STD_ENTRY = 20,
745 MLX5_IMR_KSM_CACHE_ENTRY,
746 MAX_MKEY_CACHE_ENTRIES
749 struct mlx5_profile {
756 } mr_cache[MAX_MKEY_CACHE_ENTRIES];
759 struct mlx5_hca_cap {
760 u32 cur[MLX5_UN_SZ_DW(hca_cap_union)];
761 u32 max[MLX5_UN_SZ_DW(hca_cap_union)];
764 struct mlx5_core_dev {
765 struct device *device;
766 enum mlx5_coredev_type coredev_type;
767 struct pci_dev *pdev;
769 struct mutex pci_status_mutex;
770 enum mlx5_pci_status pci_status;
772 char board_id[MLX5_BOARD_ID_LEN];
775 struct mlx5_hca_cap *hca[MLX5_CAP_NUM];
776 u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
777 u32 mcam[MLX5_MCAM_REGS_NUM][MLX5_ST_SZ_DW(mcam_reg)];
778 u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
779 u32 qcam[MLX5_ST_SZ_DW(qcam_reg)];
782 struct mlx5_timeouts *timeouts;
784 phys_addr_t iseg_base;
785 struct mlx5_init_seg __iomem *iseg;
786 phys_addr_t bar_addr;
787 enum mlx5_device_state state;
788 /* sync interface state */
789 struct mutex intf_state_mutex;
790 struct lock_class_key lock_key;
791 unsigned long intf_state;
792 struct mlx5_priv priv;
793 struct mlx5_profile profile;
795 struct mlx5e_resources mlx5e_res;
797 struct mlx5_vxlan *vxlan;
798 struct mlx5_geneve *geneve;
800 struct mlx5_rsvd_gids reserved_gids;
803 #ifdef CONFIG_MLX5_FPGA
804 struct mlx5_fpga_device *fpga;
806 struct mlx5_clock clock;
807 struct mlx5_ib_clock_info *clock_info;
808 struct mlx5_fw_tracer *tracer;
809 struct mlx5_rsc_dump *rsc_dump;
811 struct mlx5_hv_vhca *hv_vhca;
812 struct mlx5_hwmon *hwmon;
815 #ifdef CONFIG_MLX5_MACSEC
816 struct mlx5_macsec_fs *macsec_fs;
817 /* MACsec notifier chain to sync MACsec core and IB database */
818 struct blocking_notifier_head macsec_nh;
820 u64 num_ipsec_offloads;
826 struct mlx5_db_pgdir *pgdir;
827 struct mlx5_ib_user_db_page *user_page;
834 MLX5_COMP_EQ_SIZE = 1024,
838 MLX5_PTYS_IB = 1 << 0,
839 MLX5_PTYS_EN = 1 << 2,
842 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
845 MLX5_CMD_ENT_STATE_PENDING_COMP,
848 struct mlx5_cmd_work_ent {
850 struct mlx5_cmd_msg *in;
851 struct mlx5_cmd_msg *out;
854 mlx5_cmd_cbk_t callback;
855 struct delayed_work cb_timeout_work;
858 struct completion handling;
859 struct completion done;
860 struct mlx5_cmd *cmd;
861 struct work_struct work;
862 struct mlx5_cmd_layout *lay;
871 /* Track the max comp handlers */
875 enum phy_port_state {
879 struct mlx5_hca_vport_context {
884 enum port_state_policy policy;
885 enum phy_port_state phys_state;
886 enum ib_port_state vport_state;
887 u8 port_physical_state;
896 u8 init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
901 u16 qkey_violation_counter;
902 u16 pkey_violation_counter;
906 #define STRUCT_FIELD(header, field) \
907 .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \
908 .struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field
910 extern struct dentry *mlx5_debugfs_root;
912 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
914 return ioread32be(&dev->iseg->fw_rev) & 0xffff;
917 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
919 return ioread32be(&dev->iseg->fw_rev) >> 16;
922 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
924 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
927 static inline u32 mlx5_base_mkey(const u32 key)
929 return key & 0xffffff00u;
932 static inline u32 wq_get_byte_sz(u8 log_sz, u8 log_stride)
934 return ((u32)1 << log_sz) << log_stride;
937 static inline void mlx5_init_fbc_offset(struct mlx5_buf_list *frags,
938 u8 log_stride, u8 log_sz,
940 struct mlx5_frag_buf_ctrl *fbc)
943 fbc->log_stride = log_stride;
944 fbc->log_sz = log_sz;
945 fbc->sz_m1 = (1 << fbc->log_sz) - 1;
946 fbc->log_frag_strides = PAGE_SHIFT - fbc->log_stride;
947 fbc->frag_sz_m1 = (1 << fbc->log_frag_strides) - 1;
948 fbc->strides_offset = strides_offset;
951 static inline void mlx5_init_fbc(struct mlx5_buf_list *frags,
952 u8 log_stride, u8 log_sz,
953 struct mlx5_frag_buf_ctrl *fbc)
955 mlx5_init_fbc_offset(frags, log_stride, log_sz, 0, fbc);
958 static inline void *mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl *fbc,
963 ix += fbc->strides_offset;
964 frag = ix >> fbc->log_frag_strides;
966 return fbc->frags[frag].buf + ((fbc->frag_sz_m1 & ix) << fbc->log_stride);
970 mlx5_frag_buf_get_idx_last_contig_stride(struct mlx5_frag_buf_ctrl *fbc, u32 ix)
972 u32 last_frag_stride_idx = (ix + fbc->strides_offset) | fbc->frag_sz_m1;
974 return min_t(u32, last_frag_stride_idx - fbc->strides_offset, fbc->sz_m1);
978 CMD_ALLOWED_OPCODE_ALL,
981 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
982 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
983 void mlx5_cmd_allowed_opcode(struct mlx5_core_dev *dev, u16 opcode);
985 struct mlx5_async_ctx {
986 struct mlx5_core_dev *dev;
987 atomic_t num_inflight;
988 struct completion inflight_done;
991 struct mlx5_async_work;
993 typedef void (*mlx5_async_cbk_t)(int status, struct mlx5_async_work *context);
995 struct mlx5_async_work {
996 struct mlx5_async_ctx *ctx;
997 mlx5_async_cbk_t user_callback;
998 u16 opcode; /* cmd opcode */
999 u16 op_mod; /* cmd op_mod */
1000 void *out; /* pointer to the cmd output buffer */
1003 void mlx5_cmd_init_async_ctx(struct mlx5_core_dev *dev,
1004 struct mlx5_async_ctx *ctx);
1005 void mlx5_cmd_cleanup_async_ctx(struct mlx5_async_ctx *ctx);
1006 int mlx5_cmd_exec_cb(struct mlx5_async_ctx *ctx, void *in, int in_size,
1007 void *out, int out_size, mlx5_async_cbk_t callback,
1008 struct mlx5_async_work *work);
1009 void mlx5_cmd_out_err(struct mlx5_core_dev *dev, u16 opcode, u16 op_mod, void *out);
1010 int mlx5_cmd_do(struct mlx5_core_dev *dev, void *in, int in_size, void *out, int out_size);
1011 int mlx5_cmd_check(struct mlx5_core_dev *dev, int err, void *in, void *out);
1012 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
1015 #define mlx5_cmd_exec_inout(dev, ifc_cmd, in, out) \
1017 mlx5_cmd_exec(dev, in, MLX5_ST_SZ_BYTES(ifc_cmd##_in), out, \
1018 MLX5_ST_SZ_BYTES(ifc_cmd##_out)); \
1021 #define mlx5_cmd_exec_in(dev, ifc_cmd, in) \
1023 u32 _out[MLX5_ST_SZ_DW(ifc_cmd##_out)] = {}; \
1024 mlx5_cmd_exec_inout(dev, ifc_cmd, in, _out); \
1027 int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
1028 void *out, int out_size);
1029 bool mlx5_cmd_is_down(struct mlx5_core_dev *dev);
1031 void mlx5_core_uplink_netdev_set(struct mlx5_core_dev *mdev, struct net_device *netdev);
1032 void mlx5_core_uplink_netdev_event_replay(struct mlx5_core_dev *mdev);
1034 void mlx5_core_mp_event_replay(struct mlx5_core_dev *dev, u32 event, void *data);
1036 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
1037 int mlx5_health_init(struct mlx5_core_dev *dev);
1038 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
1039 void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health);
1040 void mlx5_start_health_fw_log_up(struct mlx5_core_dev *dev);
1041 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
1042 void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
1043 int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
1044 struct mlx5_frag_buf *buf, int node);
1045 void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
1046 int mlx5_core_create_mkey(struct mlx5_core_dev *dev, u32 *mkey, u32 *in,
1048 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, u32 mkey);
1049 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, u32 mkey, u32 *out,
1051 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
1052 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
1053 int mlx5_pagealloc_init(struct mlx5_core_dev *dev);
1054 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
1055 void mlx5_pagealloc_start(struct mlx5_core_dev *dev);
1056 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
1057 void mlx5_pages_debugfs_init(struct mlx5_core_dev *dev);
1058 void mlx5_pages_debugfs_cleanup(struct mlx5_core_dev *dev);
1059 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
1060 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
1061 void mlx5_register_debugfs(void);
1062 void mlx5_unregister_debugfs(void);
1064 void mlx5_fill_page_frag_array_perm(struct mlx5_frag_buf *buf, __be64 *pas, u8 perm);
1065 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
1066 int mlx5_comp_eqn_get(struct mlx5_core_dev *dev, u16 vecidx, int *eqn);
1067 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1068 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1070 struct dentry *mlx5_debugfs_get_dev_root(struct mlx5_core_dev *dev);
1071 void mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
1072 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
1073 int mlx5_access_reg(struct mlx5_core_dev *dev, void *data_in, int size_in,
1074 void *data_out, int size_out, u16 reg_id, int arg,
1075 int write, bool verbose);
1076 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
1077 int size_in, void *data_out, int size_out,
1078 u16 reg_num, int arg, int write);
1080 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
1083 static inline int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db)
1085 return mlx5_db_alloc_node(dev, db, dev->priv.numa_node);
1088 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
1090 const char *mlx5_command_str(int command);
1091 void mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
1092 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
1093 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
1094 int npsvs, u32 *sig_index);
1095 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
1096 __be32 mlx5_core_get_terminate_scatter_list_mkey(struct mlx5_core_dev *dev);
1097 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
1099 int mlx5_init_rl_table(struct mlx5_core_dev *dev);
1100 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
1101 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u16 *index,
1102 struct mlx5_rate_limit *rl);
1103 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, struct mlx5_rate_limit *rl);
1104 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
1105 int mlx5_rl_add_rate_raw(struct mlx5_core_dev *dev, void *rl_in, u16 uid,
1106 bool dedicated_entry, u16 *index);
1107 void mlx5_rl_remove_rate_raw(struct mlx5_core_dev *dev, u16 index);
1108 bool mlx5_rl_are_equal(struct mlx5_rate_limit *rl_0,
1109 struct mlx5_rate_limit *rl_1);
1110 int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
1111 bool map_wc, bool fast_path);
1112 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
1114 unsigned int mlx5_comp_vectors_max(struct mlx5_core_dev *dev);
1115 int mlx5_comp_vector_get_cpu(struct mlx5_core_dev *dev, int vector);
1116 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
1117 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
1118 u8 roce_version, u8 roce_l3_type, const u8 *gid,
1119 const u8 *mac, bool vlan, u16 vlan_id, u8 port_num);
1121 static inline u32 mlx5_mkey_to_idx(u32 mkey)
1126 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
1128 return mkey_idx << 8;
1131 static inline u8 mlx5_mkey_variant(u32 mkey)
1136 /* Async-atomic event notifier used by mlx5 core to forward FW
1137 * evetns received from event queue to mlx5 consumers.
1138 * Optimise event queue dipatching.
1140 int mlx5_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb);
1141 int mlx5_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb);
1143 /* Async-atomic event notifier used for forwarding
1144 * evetns from the event queue into the to mlx5 events dispatcher,
1145 * eswitch, clock and others.
1147 int mlx5_eq_notifier_register(struct mlx5_core_dev *dev, struct mlx5_nb *nb);
1148 int mlx5_eq_notifier_unregister(struct mlx5_core_dev *dev, struct mlx5_nb *nb);
1150 /* Blocking event notifier used to forward SW events, used for slow path */
1151 int mlx5_blocking_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb);
1152 int mlx5_blocking_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb);
1153 int mlx5_blocking_notifier_call_chain(struct mlx5_core_dev *dev, unsigned int event,
1156 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
1158 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
1159 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
1160 bool mlx5_lag_is_roce(struct mlx5_core_dev *dev);
1161 bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev);
1162 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
1163 bool mlx5_lag_mode_is_hash(struct mlx5_core_dev *dev);
1164 bool mlx5_lag_is_master(struct mlx5_core_dev *dev);
1165 bool mlx5_lag_is_shared_fdb(struct mlx5_core_dev *dev);
1166 bool mlx5_lag_is_mpesw(struct mlx5_core_dev *dev);
1167 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
1168 u8 mlx5_lag_get_slave_port(struct mlx5_core_dev *dev,
1169 struct net_device *slave);
1170 int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
1174 struct mlx5_core_dev *mlx5_lag_get_next_peer_mdev(struct mlx5_core_dev *dev, int *i);
1176 #define mlx5_lag_for_each_peer_mdev(dev, peer, i) \
1177 for (i = 0, peer = mlx5_lag_get_next_peer_mdev(dev, &i); \
1179 peer = mlx5_lag_get_next_peer_mdev(dev, &i))
1181 u8 mlx5_lag_get_num_ports(struct mlx5_core_dev *dev);
1182 struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
1183 void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
1184 int mlx5_dm_sw_icm_alloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
1185 u64 length, u32 log_alignment, u16 uid,
1186 phys_addr_t *addr, u32 *obj_id);
1187 int mlx5_dm_sw_icm_dealloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
1188 u64 length, u16 uid, phys_addr_t addr, u32 obj_id);
1190 struct mlx5_core_dev *mlx5_vf_get_core_dev(struct pci_dev *pdev);
1191 void mlx5_vf_put_core_dev(struct mlx5_core_dev *mdev);
1193 int mlx5_sriov_blocking_notifier_register(struct mlx5_core_dev *mdev,
1195 struct notifier_block *nb);
1196 void mlx5_sriov_blocking_notifier_unregister(struct mlx5_core_dev *mdev,
1198 struct notifier_block *nb);
1199 int mlx5_rdma_rn_get_params(struct mlx5_core_dev *mdev,
1200 struct ib_device *device,
1201 struct rdma_netdev_alloc_params *params);
1204 MLX5_PCI_DEV_IS_VF = 1 << 0,
1207 static inline bool mlx5_core_is_pf(const struct mlx5_core_dev *dev)
1209 return dev->coredev_type == MLX5_COREDEV_PF;
1212 static inline bool mlx5_core_is_vf(const struct mlx5_core_dev *dev)
1214 return dev->coredev_type == MLX5_COREDEV_VF;
1217 static inline bool mlx5_core_is_ecpf(const struct mlx5_core_dev *dev)
1219 return dev->caps.embedded_cpu;
1223 mlx5_core_is_ecpf_esw_manager(const struct mlx5_core_dev *dev)
1225 return dev->caps.embedded_cpu && MLX5_CAP_GEN(dev, eswitch_manager);
1228 static inline bool mlx5_ecpf_vport_exists(const struct mlx5_core_dev *dev)
1230 return mlx5_core_is_pf(dev) && MLX5_CAP_ESW(dev, ecpf_vport_exists);
1233 static inline u16 mlx5_core_max_vfs(const struct mlx5_core_dev *dev)
1235 return dev->priv.sriov.max_vfs;
1238 static inline int mlx5_lag_is_lacp_owner(struct mlx5_core_dev *dev)
1240 /* LACP owner conditions:
1241 * 1) Function is physical.
1242 * 2) LAG is supported by FW.
1243 * 3) LAG is managed by driver (currently the only option).
1245 return MLX5_CAP_GEN(dev, vport_group_manager) &&
1246 (MLX5_CAP_GEN(dev, num_lag_ports) > 1) &&
1247 MLX5_CAP_GEN(dev, lag_master);
1250 static inline u16 mlx5_core_max_ec_vfs(const struct mlx5_core_dev *dev)
1252 return dev->priv.sriov.max_ec_vfs;
1255 static inline int mlx5_get_gid_table_len(u16 param)
1258 pr_warn("gid table length is zero\n");
1262 return 8 * (1 << param);
1265 static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
1267 return !!(dev->priv.rl_table.max_size);
1270 static inline int mlx5_core_is_mp_slave(struct mlx5_core_dev *dev)
1272 return MLX5_CAP_GEN(dev, affiliate_nic_vport_criteria) &&
1273 MLX5_CAP_GEN(dev, num_vhca_ports) <= 1;
1276 static inline int mlx5_core_is_mp_master(struct mlx5_core_dev *dev)
1278 return MLX5_CAP_GEN(dev, num_vhca_ports) > 1;
1281 static inline int mlx5_core_mp_enabled(struct mlx5_core_dev *dev)
1283 return mlx5_core_is_mp_slave(dev) ||
1284 mlx5_core_is_mp_master(dev);
1287 static inline int mlx5_core_native_port_num(struct mlx5_core_dev *dev)
1289 if (!mlx5_core_mp_enabled(dev))
1292 return MLX5_CAP_GEN(dev, native_port_num);
1295 static inline int mlx5_get_dev_index(struct mlx5_core_dev *dev)
1297 int idx = MLX5_CAP_GEN(dev, native_port_num);
1299 if (idx >= 1 && idx <= MLX5_MAX_PORTS)
1302 return PCI_FUNC(dev->pdev->devfn);
1306 MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
1309 bool mlx5_is_roce_on(struct mlx5_core_dev *dev);
1311 static inline bool mlx5_get_roce_state(struct mlx5_core_dev *dev)
1313 if (MLX5_CAP_GEN(dev, roce_rw_supported))
1314 return MLX5_CAP_GEN(dev, roce);
1316 /* If RoCE cap is read-only in FW, get RoCE state from devlink
1317 * in order to support RoCE enable/disable feature
1319 return mlx5_is_roce_on(dev);
1322 #ifdef CONFIG_MLX5_MACSEC
1323 static inline bool mlx5e_is_macsec_device(const struct mlx5_core_dev *mdev)
1325 if (!(MLX5_CAP_GEN_64(mdev, general_obj_types) &
1326 MLX5_GENERAL_OBJ_TYPES_CAP_MACSEC_OFFLOAD))
1329 if (!MLX5_CAP_GEN(mdev, log_max_dek))
1332 if (!MLX5_CAP_MACSEC(mdev, log_max_macsec_offload))
1335 if (!MLX5_CAP_FLOWTABLE_NIC_RX(mdev, macsec_decrypt) ||
1336 !MLX5_CAP_FLOWTABLE_NIC_RX(mdev, reformat_remove_macsec))
1339 if (!MLX5_CAP_FLOWTABLE_NIC_TX(mdev, macsec_encrypt) ||
1340 !MLX5_CAP_FLOWTABLE_NIC_TX(mdev, reformat_add_macsec))
1343 if (!MLX5_CAP_MACSEC(mdev, macsec_crypto_esp_aes_gcm_128_encrypt) &&
1344 !MLX5_CAP_MACSEC(mdev, macsec_crypto_esp_aes_gcm_256_encrypt))
1347 if (!MLX5_CAP_MACSEC(mdev, macsec_crypto_esp_aes_gcm_128_decrypt) &&
1348 !MLX5_CAP_MACSEC(mdev, macsec_crypto_esp_aes_gcm_256_decrypt))
1354 #define NIC_RDMA_BOTH_DIRS_CAPS (MLX5_FT_NIC_RX_2_NIC_RX_RDMA | MLX5_FT_NIC_TX_RDMA_2_NIC_TX)
1356 static inline bool mlx5_is_macsec_roce_supported(struct mlx5_core_dev *mdev)
1358 if (((MLX5_CAP_GEN_2(mdev, flow_table_type_2_type) &
1359 NIC_RDMA_BOTH_DIRS_CAPS) != NIC_RDMA_BOTH_DIRS_CAPS) ||
1360 !MLX5_CAP_FLOWTABLE_RDMA_TX(mdev, max_modify_header_actions) ||
1361 !mlx5e_is_macsec_device(mdev) || !mdev->macsec_fs)
1372 struct msi_map mlx5_msix_alloc(struct mlx5_core_dev *dev,
1373 irqreturn_t (*handler)(int, void *),
1374 const struct irq_affinity_desc *affdesc,
1376 void mlx5_msix_free(struct mlx5_core_dev *dev, struct msi_map map);
1378 #endif /* MLX5_DRIVER_H */