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linux-sg2042/include/linux/mlx5/driver.h

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/*
* Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef MLX5_DRIVER_H
#define MLX5_DRIVER_H
#include <linux/kernel.h>
#include <linux/completion.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/spinlock_types.h>
#include <linux/semaphore.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/radix-tree.h>
#include <linux/workqueue.h>
#include <linux/mempool.h>
#include <linux/interrupt.h>
#include <linux/idr.h>
#include <linux/notifier.h>
#include <linux/mlx5/device.h>
#include <linux/mlx5/doorbell.h>
#include <linux/mlx5/eq.h>
#include <linux/timecounter.h>
#include <linux/ptp_clock_kernel.h>
enum {
MLX5_BOARD_ID_LEN = 64,
MLX5_MAX_NAME_LEN = 16,
};
enum {
/* one minute for the sake of bringup. Generally, commands must always
* complete and we may need to increase this timeout value
*/
MLX5_CMD_TIMEOUT_MSEC = 60 * 1000,
MLX5_CMD_WQ_MAX_NAME = 32,
};
enum {
CMD_OWNER_SW = 0x0,
CMD_OWNER_HW = 0x1,
CMD_STATUS_SUCCESS = 0,
};
enum mlx5_sqp_t {
MLX5_SQP_SMI = 0,
MLX5_SQP_GSI = 1,
MLX5_SQP_IEEE_1588 = 2,
MLX5_SQP_SNIFFER = 3,
MLX5_SQP_SYNC_UMR = 4,
};
enum {
MLX5_MAX_PORTS = 2,
};
enum {
MLX5_ATOMIC_MODE_OFFSET = 16,
MLX5_ATOMIC_MODE_IB_COMP = 1,
MLX5_ATOMIC_MODE_CX = 2,
MLX5_ATOMIC_MODE_8B = 3,
MLX5_ATOMIC_MODE_16B = 4,
MLX5_ATOMIC_MODE_32B = 5,
MLX5_ATOMIC_MODE_64B = 6,
MLX5_ATOMIC_MODE_128B = 7,
MLX5_ATOMIC_MODE_256B = 8,
};
enum {
MLX5_REG_QPTS = 0x4002,
MLX5_REG_QETCR = 0x4005,
MLX5_REG_QTCT = 0x400a,
MLX5_REG_QPDPM = 0x4013,
MLX5_REG_QCAM = 0x4019,
MLX5_REG_DCBX_PARAM = 0x4020,
MLX5_REG_DCBX_APP = 0x4021,
MLX5_REG_FPGA_CAP = 0x4022,
MLX5_REG_FPGA_CTRL = 0x4023,
MLX5_REG_FPGA_ACCESS_REG = 0x4024,
MLX5_REG_PCAP = 0x5001,
MLX5_REG_PMTU = 0x5003,
MLX5_REG_PTYS = 0x5004,
MLX5_REG_PAOS = 0x5006,
MLX5_REG_PFCC = 0x5007,
MLX5_REG_PPCNT = 0x5008,
MLX5_REG_PPTB = 0x500b,
MLX5_REG_PBMC = 0x500c,
MLX5_REG_PMAOS = 0x5012,
MLX5_REG_PUDE = 0x5009,
MLX5_REG_PMPE = 0x5010,
MLX5_REG_PELC = 0x500e,
MLX5_REG_PVLC = 0x500f,
MLX5_REG_PCMR = 0x5041,
MLX5_REG_PMLP = 0x5002,
MLX5_REG_PPLM = 0x5023,
MLX5_REG_PCAM = 0x507f,
MLX5_REG_NODE_DESC = 0x6001,
MLX5_REG_HOST_ENDIANNESS = 0x7004,
MLX5_REG_MCIA = 0x9014,
MLX5_REG_MLCR = 0x902b,
MLX5_REG_MTRC_CAP = 0x9040,
MLX5_REG_MTRC_CONF = 0x9041,
MLX5_REG_MTRC_STDB = 0x9042,
MLX5_REG_MTRC_CTRL = 0x9043,
MLX5_REG_MPCNT = 0x9051,
MLX5_REG_MTPPS = 0x9053,
MLX5_REG_MTPPSE = 0x9054,
MLX5_REG_MPEGC = 0x9056,
MLX5_REG_MCQI = 0x9061,
MLX5_REG_MCC = 0x9062,
MLX5_REG_MCDA = 0x9063,
MLX5_REG_MCAM = 0x907f,
};
enum mlx5_qpts_trust_state {
MLX5_QPTS_TRUST_PCP = 1,
MLX5_QPTS_TRUST_DSCP = 2,
};
enum mlx5_dcbx_oper_mode {
MLX5E_DCBX_PARAM_VER_OPER_HOST = 0x0,
MLX5E_DCBX_PARAM_VER_OPER_AUTO = 0x3,
};
enum {
MLX5_ATOMIC_OPS_CMP_SWAP = 1 << 0,
MLX5_ATOMIC_OPS_FETCH_ADD = 1 << 1,
MLX5_ATOMIC_OPS_EXTENDED_CMP_SWAP = 1 << 2,
MLX5_ATOMIC_OPS_EXTENDED_FETCH_ADD = 1 << 3,
};
enum mlx5_page_fault_resume_flags {
MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
MLX5_PAGE_FAULT_RESUME_WRITE = 1 << 1,
MLX5_PAGE_FAULT_RESUME_RDMA = 1 << 2,
MLX5_PAGE_FAULT_RESUME_ERROR = 1 << 7,
};
enum dbg_rsc_type {
MLX5_DBG_RSC_QP,
MLX5_DBG_RSC_EQ,
MLX5_DBG_RSC_CQ,
};
enum port_state_policy {
MLX5_POLICY_DOWN = 0,
MLX5_POLICY_UP = 1,
MLX5_POLICY_FOLLOW = 2,
MLX5_POLICY_INVALID = 0xffffffff
};
struct mlx5_field_desc {
struct dentry *dent;
int i;
};
struct mlx5_rsc_debug {
struct mlx5_core_dev *dev;
void *object;
enum dbg_rsc_type type;
struct dentry *root;
struct mlx5_field_desc fields[0];
};
enum mlx5_dev_event {
MLX5_DEV_EVENT_SYS_ERROR = 128, /* 0 - 127 are FW events */
MLX5_DEV_EVENT_PORT_AFFINITY = 129,
};
enum mlx5_port_status {
MLX5_PORT_UP = 1,
MLX5_PORT_DOWN = 2,
};
struct mlx5_bfreg_info {
u32 *sys_pages;
int num_low_latency_bfregs;
unsigned int *count;
/*
* protect bfreg allocation data structs
*/
struct mutex lock;
u32 ver;
bool lib_uar_4k;
u32 num_sys_pages;
u32 num_static_sys_pages;
u32 total_num_bfregs;
u32 num_dyn_bfregs;
};
struct mlx5_cmd_first {
__be32 data[4];
};
struct mlx5_cmd_msg {
struct list_head list;
struct cmd_msg_cache *parent;
u32 len;
struct mlx5_cmd_first first;
struct mlx5_cmd_mailbox *next;
};
struct mlx5_cmd_debug {
struct dentry *dbg_root;
struct dentry *dbg_in;
struct dentry *dbg_out;
struct dentry *dbg_outlen;
struct dentry *dbg_status;
struct dentry *dbg_run;
void *in_msg;
void *out_msg;
u8 status;
u16 inlen;
u16 outlen;
};
struct cmd_msg_cache {
/* protect block chain allocations
*/
spinlock_t lock;
struct list_head head;
unsigned int max_inbox_size;
unsigned int num_ent;
};
enum {
MLX5_NUM_COMMAND_CACHES = 5,
};
struct mlx5_cmd_stats {
u64 sum;
u64 n;
struct dentry *root;
struct dentry *avg;
struct dentry *count;
/* protect command average calculations */
spinlock_t lock;
};
struct mlx5_cmd {
struct mlx5_nb nb;
void *cmd_alloc_buf;
dma_addr_t alloc_dma;
int alloc_size;
void *cmd_buf;
dma_addr_t dma;
u16 cmdif_rev;
u8 log_sz;
u8 log_stride;
int max_reg_cmds;
int events;
u32 __iomem *vector;
/* protect command queue allocations
*/
spinlock_t alloc_lock;
/* protect token allocations
*/
spinlock_t token_lock;
u8 token;
unsigned long bitmask;
char wq_name[MLX5_CMD_WQ_MAX_NAME];
struct workqueue_struct *wq;
struct semaphore sem;
struct semaphore pages_sem;
int mode;
struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
struct dma_pool *pool;
struct mlx5_cmd_debug dbg;
struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
int checksum_disabled;
struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
};
struct mlx5_port_caps {
int gid_table_len;
int pkey_table_len;
u8 ext_port_cap;
bool has_smi;
};
struct mlx5_cmd_mailbox {
void *buf;
dma_addr_t dma;
struct mlx5_cmd_mailbox *next;
};
struct mlx5_buf_list {
void *buf;
dma_addr_t map;
};
struct mlx5_frag_buf {
struct mlx5_buf_list *frags;
int npages;
int size;
u8 page_shift;
};
struct mlx5_frag_buf_ctrl {
struct mlx5_buf_list *frags;
u32 sz_m1;
u16 frag_sz_m1;
u16 strides_offset;
u8 log_sz;
u8 log_stride;
u8 log_frag_strides;
};
struct mlx5_core_psv {
u32 psv_idx;
struct psv_layout {
u32 pd;
u16 syndrome;
u16 reserved;
u16 bg;
u16 app_tag;
u32 ref_tag;
} psv;
};
struct mlx5_core_sig_ctx {
struct mlx5_core_psv psv_memory;
struct mlx5_core_psv psv_wire;
struct ib_sig_err err_item;
bool sig_status_checked;
bool sig_err_exists;
u32 sigerr_count;
};
enum {
MLX5_MKEY_MR = 1,
MLX5_MKEY_MW,
MLX5_MKEY_INDIRECT_DEVX,
};
struct mlx5_core_mkey {
u64 iova;
u64 size;
u32 key;
u32 pd;
u32 type;
};
#define MLX5_24BIT_MASK ((1 << 24) - 1)
enum mlx5_res_type {
MLX5_RES_QP = MLX5_EVENT_QUEUE_TYPE_QP,
MLX5_RES_RQ = MLX5_EVENT_QUEUE_TYPE_RQ,
MLX5_RES_SQ = MLX5_EVENT_QUEUE_TYPE_SQ,
MLX5_RES_SRQ = 3,
MLX5_RES_XSRQ = 4,
MLX5_RES_XRQ = 5,
MLX5_RES_DCT = MLX5_EVENT_QUEUE_TYPE_DCT,
};
struct mlx5_core_rsc_common {
enum mlx5_res_type res;
atomic_t refcount;
struct completion free;
};
struct mlx5_uars_page {
void __iomem *map;
bool wc;
u32 index;
struct list_head list;
unsigned int bfregs;
unsigned long *reg_bitmap; /* for non fast path bf regs */
unsigned long *fp_bitmap;
unsigned int reg_avail;
unsigned int fp_avail;
struct kref ref_count;
struct mlx5_core_dev *mdev;
};
struct mlx5_bfreg_head {
/* protect blue flame registers allocations */
struct mutex lock;
struct list_head list;
};
struct mlx5_bfreg_data {
struct mlx5_bfreg_head reg_head;
struct mlx5_bfreg_head wc_head;
};
struct mlx5_sq_bfreg {
void __iomem *map;
struct mlx5_uars_page *up;
bool wc;
u32 index;
unsigned int offset;
};
struct mlx5_core_health {
struct health_buffer __iomem *health;
__be32 __iomem *health_counter;
struct timer_list timer;
u32 prev;
int miss_counter;
bool sick;
/* wq spinlock to synchronize draining */
spinlock_t wq_lock;
struct workqueue_struct *wq;
unsigned long flags;
struct work_struct work;
struct delayed_work recover_work;
};
struct mlx5_qp_table {
struct notifier_block nb;
/* protect radix tree
*/
spinlock_t lock;
struct radix_tree_root tree;
};
struct mlx5_mkey_table {
/* protect radix tree
*/
rwlock_t lock;
struct radix_tree_root tree;
};
struct mlx5_vf_context {
int enabled;
u64 port_guid;
u64 node_guid;
enum port_state_policy policy;
};
struct mlx5_core_sriov {
struct mlx5_vf_context *vfs_ctx;
int num_vfs;
int enabled_vfs;
};
struct mlx5_fc_stats {
spinlock_t counters_idr_lock; /* protects counters_idr */
struct idr counters_idr;
struct list_head counters;
struct llist_head addlist;
struct llist_head dellist;
struct workqueue_struct *wq;
struct delayed_work work;
unsigned long next_query;
unsigned long sampling_interval; /* jiffies */
};
struct mlx5_events;
struct mlx5_mpfs;
struct mlx5_eswitch;
struct mlx5_lag;
struct mlx5_devcom;
struct mlx5_eq_table;
struct mlx5_rate_limit {
u32 rate;
u32 max_burst_sz;
u16 typical_pkt_sz;
};
struct mlx5_rl_entry {
struct mlx5_rate_limit rl;
u16 index;
u16 refcount;
};
struct mlx5_rl_table {
/* protect rate limit table */
struct mutex rl_lock;
u16 max_size;
u32 max_rate;
u32 min_rate;
struct mlx5_rl_entry *rl_entry;
};
struct mlx5_priv {
char name[MLX5_MAX_NAME_LEN];
struct mlx5_eq_table *eq_table;
/* pages stuff */
struct mlx5_nb pg_nb;
struct workqueue_struct *pg_wq;
struct rb_root page_root;
int fw_pages;
atomic_t reg_pages;
struct list_head free_list;
int vfs_pages;
int peer_pf_pages;
struct mlx5_core_health health;
/* start: qp staff */
struct mlx5_qp_table qp_table;
struct dentry *qp_debugfs;
struct dentry *eq_debugfs;
struct dentry *cq_debugfs;
struct dentry *cmdif_debugfs;
/* end: qp staff */
/* start: mkey staff */
struct mlx5_mkey_table mkey_table;
/* end: mkey staff */
/* start: alloc staff */
/* protect buffer alocation according to numa node */
struct mutex alloc_mutex;
int numa_node;
struct mutex pgdir_mutex;
struct list_head pgdir_list;
/* end: alloc staff */
struct dentry *dbg_root;
/* protect mkey key part */
spinlock_t mkey_lock;
u8 mkey_key;
struct list_head dev_list;
struct list_head ctx_list;
spinlock_t ctx_lock;
struct mlx5_events *events;
struct mlx5_flow_steering *steering;
struct mlx5_mpfs *mpfs;
struct mlx5_eswitch *eswitch;
struct mlx5_core_sriov sriov;
struct mlx5_lag *lag;
struct mlx5_devcom *devcom;
unsigned long pci_dev_data;
struct mlx5_fc_stats fc_stats;
struct mlx5_rl_table rl_table;
struct mlx5_bfreg_data bfregs;
struct mlx5_uars_page *uar;
};
enum mlx5_device_state {
MLX5_DEVICE_STATE_UP,
MLX5_DEVICE_STATE_INTERNAL_ERROR,
};
enum mlx5_interface_state {
MLX5_INTERFACE_STATE_UP = BIT(0),
};
enum mlx5_pci_status {
MLX5_PCI_STATUS_DISABLED,
MLX5_PCI_STATUS_ENABLED,
};
enum mlx5_pagefault_type_flags {
MLX5_PFAULT_REQUESTOR = 1 << 0,
MLX5_PFAULT_WRITE = 1 << 1,
MLX5_PFAULT_RDMA = 1 << 2,
};
struct mlx5_td {
/* protects tirs list changes while tirs refresh */
struct mutex list_lock;
struct list_head tirs_list;
u32 tdn;
};
struct mlx5e_resources {
u32 pdn;
struct mlx5_td td;
struct mlx5_core_mkey mkey;
struct mlx5_sq_bfreg bfreg;
};
#define MLX5_MAX_RESERVED_GIDS 8
struct mlx5_rsvd_gids {
unsigned int start;
unsigned int count;
struct ida ida;
};
#define MAX_PIN_NUM 8
struct mlx5_pps {
u8 pin_caps[MAX_PIN_NUM];
struct work_struct out_work;
u64 start[MAX_PIN_NUM];
u8 enabled;
};
struct mlx5_clock {
struct mlx5_core_dev *mdev;
struct mlx5_nb pps_nb;
seqlock_t lock;
struct cyclecounter cycles;
struct timecounter tc;
struct hwtstamp_config hwtstamp_config;
u32 nominal_c_mult;
unsigned long overflow_period;
struct delayed_work overflow_work;
struct ptp_clock *ptp;
struct ptp_clock_info ptp_info;
struct mlx5_pps pps_info;
};
struct mlx5_fw_tracer;
struct mlx5_vxlan;
struct mlx5_core_dev {
struct pci_dev *pdev;
/* sync pci state */
struct mutex pci_status_mutex;
enum mlx5_pci_status pci_status;
u8 rev_id;
char board_id[MLX5_BOARD_ID_LEN];
struct mlx5_cmd cmd;
struct mlx5_port_caps port_caps[MLX5_MAX_PORTS];
struct {
u32 hca_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
u32 hca_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
u32 mcam[MLX5_ST_SZ_DW(mcam_reg)];
u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
u32 qcam[MLX5_ST_SZ_DW(qcam_reg)];
u8 embedded_cpu;
} caps;
u64 sys_image_guid;
phys_addr_t iseg_base;
struct mlx5_init_seg __iomem *iseg;
enum mlx5_device_state state;
/* sync interface state */
struct mutex intf_state_mutex;
unsigned long intf_state;
struct mlx5_priv priv;
struct mlx5_profile *profile;
atomic_t num_qps;
u32 issi;
struct mlx5e_resources mlx5e_res;
struct mlx5_vxlan *vxlan;
struct {
struct mlx5_rsvd_gids reserved_gids;
u32 roce_en;
} roce;
#ifdef CONFIG_MLX5_FPGA
struct mlx5_fpga_device *fpga;
#endif
struct mlx5_clock clock;
struct mlx5_ib_clock_info *clock_info;
struct page *clock_info_page;
struct mlx5_fw_tracer *tracer;
};
struct mlx5_db {
__be32 *db;
union {
struct mlx5_db_pgdir *pgdir;
struct mlx5_ib_user_db_page *user_page;
} u;
dma_addr_t dma;
int index;
};
enum {
MLX5_COMP_EQ_SIZE = 1024,
};
enum {
MLX5_PTYS_IB = 1 << 0,
MLX5_PTYS_EN = 1 << 2,
};
typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
enum {
MLX5_CMD_ENT_STATE_PENDING_COMP,
};
struct mlx5_cmd_work_ent {
unsigned long state;
struct mlx5_cmd_msg *in;
struct mlx5_cmd_msg *out;
void *uout;
int uout_size;
mlx5_cmd_cbk_t callback;
struct delayed_work cb_timeout_work;
void *context;
int idx;
struct completion done;
struct mlx5_cmd *cmd;
struct work_struct work;
struct mlx5_cmd_layout *lay;
int ret;
int page_queue;
u8 status;
u8 token;
u64 ts1;
u64 ts2;
u16 op;
bool polling;
};
struct mlx5_pas {
u64 pa;
u8 log_sz;
};
enum phy_port_state {
MLX5_AAA_111
};
struct mlx5_hca_vport_context {
u32 field_select;
bool sm_virt_aware;
bool has_smi;
bool has_raw;
enum port_state_policy policy;
enum phy_port_state phys_state;
enum ib_port_state vport_state;
u8 port_physical_state;
u64 sys_image_guid;
u64 port_guid;
u64 node_guid;
u32 cap_mask1;
u32 cap_mask1_perm;
u16 cap_mask2;
u16 cap_mask2_perm;
u16 lid;
u8 init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
u8 lmc;
u8 subnet_timeout;
u16 sm_lid;
u8 sm_sl;
u16 qkey_violation_counter;
u16 pkey_violation_counter;
bool grh_required;
};
static inline void *mlx5_buf_offset(struct mlx5_frag_buf *buf, int offset)
{
return buf->frags->buf + offset;
}
#define STRUCT_FIELD(header, field) \
.struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \
.struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field
static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
{
return pci_get_drvdata(pdev);
}
extern struct dentry *mlx5_debugfs_root;
static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
{
return ioread32be(&dev->iseg->fw_rev) & 0xffff;
}
static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
{
return ioread32be(&dev->iseg->fw_rev) >> 16;
}
static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
{
return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
}
static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
{
return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
}
static inline u32 mlx5_base_mkey(const u32 key)
{
return key & 0xffffff00u;
}
static inline void mlx5_init_fbc_offset(struct mlx5_buf_list *frags,
u8 log_stride, u8 log_sz,
u16 strides_offset,
struct mlx5_frag_buf_ctrl *fbc)
{
fbc->frags = frags;
fbc->log_stride = log_stride;
fbc->log_sz = log_sz;
fbc->sz_m1 = (1 << fbc->log_sz) - 1;
fbc->log_frag_strides = PAGE_SHIFT - fbc->log_stride;
fbc->frag_sz_m1 = (1 << fbc->log_frag_strides) - 1;
fbc->strides_offset = strides_offset;
}
static inline void mlx5_init_fbc(struct mlx5_buf_list *frags,
u8 log_stride, u8 log_sz,
struct mlx5_frag_buf_ctrl *fbc)
{
mlx5_init_fbc_offset(frags, log_stride, log_sz, 0, fbc);
}
static inline void *mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl *fbc,
u32 ix)
{
unsigned int frag;
ix += fbc->strides_offset;
frag = ix >> fbc->log_frag_strides;
return fbc->frags[frag].buf + ((fbc->frag_sz_m1 & ix) << fbc->log_stride);
}
static inline u32
mlx5_frag_buf_get_idx_last_contig_stride(struct mlx5_frag_buf_ctrl *fbc, u32 ix)
{
u32 last_frag_stride_idx = (ix + fbc->strides_offset) | fbc->frag_sz_m1;
return min_t(u32, last_frag_stride_idx - fbc->strides_offset, fbc->sz_m1);
}
int mlx5_cmd_init(struct mlx5_core_dev *dev);
void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
struct mlx5_async_ctx {
struct mlx5_core_dev *dev;
atomic_t num_inflight;
struct wait_queue_head wait;
};
struct mlx5_async_work;
typedef void (*mlx5_async_cbk_t)(int status, struct mlx5_async_work *context);
struct mlx5_async_work {
struct mlx5_async_ctx *ctx;
mlx5_async_cbk_t user_callback;
};
void mlx5_cmd_init_async_ctx(struct mlx5_core_dev *dev,
struct mlx5_async_ctx *ctx);
void mlx5_cmd_cleanup_async_ctx(struct mlx5_async_ctx *ctx);
int mlx5_cmd_exec_cb(struct mlx5_async_ctx *ctx, void *in, int in_size,
void *out, int out_size, mlx5_async_cbk_t callback,
struct mlx5_async_work *work);
int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
int out_size);
int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
void *out, int out_size);
void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);
int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
void mlx5_health_cleanup(struct mlx5_core_dev *dev);
int mlx5_health_init(struct mlx5_core_dev *dev);
void mlx5_start_health_poll(struct mlx5_core_dev *dev);
void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health);
void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
void mlx5_drain_health_recovery(struct mlx5_core_dev *dev);
int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
struct mlx5_frag_buf *buf, int node);
int mlx5_buf_alloc(struct mlx5_core_dev *dev,
int size, struct mlx5_frag_buf *buf);
void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
struct mlx5_frag_buf *buf, int node);
void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
gfp_t flags, int npages);
void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
struct mlx5_cmd_mailbox *head);
void mlx5_init_mkey_table(struct mlx5_core_dev *dev);
void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev);
int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev,
struct mlx5_core_mkey *mkey,
struct mlx5_async_ctx *async_ctx, u32 *in,
int inlen, u32 *out, int outlen,
mlx5_async_cbk_t callback,
struct mlx5_async_work *context);
int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
struct mlx5_core_mkey *mkey,
u32 *in, int inlen);
int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
struct mlx5_core_mkey *mkey);
int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
u32 *out, int outlen);
int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
int mlx5_pagealloc_init(struct mlx5_core_dev *dev);
void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
void mlx5_pagealloc_start(struct mlx5_core_dev *dev);
void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
s32 npages, bool ec_function);
int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
void mlx5_register_debugfs(void);
void mlx5_unregister_debugfs(void);
void mlx5_fill_page_array(struct mlx5_frag_buf *buf, __be64 *pas);
void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
unsigned int *irqn);
int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
int size_in, void *data_out, int size_out,
u16 reg_num, int arg, int write);
int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
int node);
void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
const char *mlx5_command_str(int command);
int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
int npsvs, u32 *sig_index);
int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
struct mlx5_odp_caps *odp_caps);
int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
u8 port_num, void *out, size_t sz);
int mlx5_init_rl_table(struct mlx5_core_dev *dev);
void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u16 *index,
struct mlx5_rate_limit *rl);
void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, struct mlx5_rate_limit *rl);
bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
bool mlx5_rl_are_equal(struct mlx5_rate_limit *rl_0,
struct mlx5_rate_limit *rl_1);
int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
bool map_wc, bool fast_path);
void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
unsigned int mlx5_comp_vectors_count(struct mlx5_core_dev *dev);
struct cpumask *
mlx5_comp_irq_get_affinity_mask(struct mlx5_core_dev *dev, int vector);
unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
u8 roce_version, u8 roce_l3_type, const u8 *gid,
const u8 *mac, bool vlan, u16 vlan_id, u8 port_num);
static inline int fw_initializing(struct mlx5_core_dev *dev)
{
return ioread32be(&dev->iseg->initializing) >> 31;
}
static inline u32 mlx5_mkey_to_idx(u32 mkey)
{
return mkey >> 8;
}
static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
{
return mkey_idx << 8;
}
static inline u8 mlx5_mkey_variant(u32 mkey)
{
return mkey & 0xff;
}
enum {
MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0,
MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1,
};
enum {
MR_CACHE_LAST_STD_ENTRY = 20,
MLX5_IMR_MTT_CACHE_ENTRY,
MLX5_IMR_KSM_CACHE_ENTRY,
MAX_MR_CACHE_ENTRIES
};
enum {
MLX5_INTERFACE_PROTOCOL_IB = 0,
MLX5_INTERFACE_PROTOCOL_ETH = 1,
};
struct mlx5_interface {
void * (*add)(struct mlx5_core_dev *dev);
void (*remove)(struct mlx5_core_dev *dev, void *context);
int (*attach)(struct mlx5_core_dev *dev, void *context);
void (*detach)(struct mlx5_core_dev *dev, void *context);
int protocol;
struct list_head list;
};
int mlx5_register_interface(struct mlx5_interface *intf);
void mlx5_unregister_interface(struct mlx5_interface *intf);
int mlx5_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb);
int mlx5_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb);
int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
bool mlx5_lag_is_roce(struct mlx5_core_dev *dev);
bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev);
bool mlx5_lag_is_multipath(struct mlx5_core_dev *dev);
bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
u64 *values,
int num_counters,
size_t *offsets);
struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
#ifdef CONFIG_MLX5_CORE_IPOIB
struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
struct ib_device *ibdev,
const char *name,
void (*setup)(struct net_device *));
#endif /* CONFIG_MLX5_CORE_IPOIB */
int mlx5_rdma_rn_get_params(struct mlx5_core_dev *mdev,
struct ib_device *device,
struct rdma_netdev_alloc_params *params);
struct mlx5_profile {
u64 mask;
u8 log_max_qp;
struct {
int size;
int limit;
} mr_cache[MAX_MR_CACHE_ENTRIES];
};
enum {
MLX5_PCI_DEV_IS_VF = 1 << 0,
};
static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev)
{
return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF);
}
static inline bool mlx5_core_is_ecpf(struct mlx5_core_dev *dev)
{
return dev->caps.embedded_cpu;
}
static inline bool mlx5_core_is_ecpf_esw_manager(struct mlx5_core_dev *dev)
{
return dev->caps.embedded_cpu && MLX5_CAP_GEN(dev, eswitch_manager);
}
static inline bool mlx5_ecpf_vport_exists(struct mlx5_core_dev *dev)
{
return mlx5_core_is_pf(dev) && MLX5_CAP_ESW(dev, ecpf_vport_exists);
}
#define MLX5_HOST_PF_MAX_VFS (127u)
static inline u16 mlx5_core_max_vfs(struct mlx5_core_dev *dev)
{
if (mlx5_core_is_ecpf_esw_manager(dev))
return MLX5_HOST_PF_MAX_VFS;
else
return pci_sriov_get_totalvfs(dev->pdev);
}
static inline int mlx5_get_gid_table_len(u16 param)
{
if (param > 4) {
pr_warn("gid table length is zero\n");
return 0;
}
return 8 * (1 << param);
}
static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
{
return !!(dev->priv.rl_table.max_size);
}
static inline int mlx5_core_is_mp_slave(struct mlx5_core_dev *dev)
{
return MLX5_CAP_GEN(dev, affiliate_nic_vport_criteria) &&
MLX5_CAP_GEN(dev, num_vhca_ports) <= 1;
}
static inline int mlx5_core_is_mp_master(struct mlx5_core_dev *dev)
{
return MLX5_CAP_GEN(dev, num_vhca_ports) > 1;
}
static inline int mlx5_core_mp_enabled(struct mlx5_core_dev *dev)
{
return mlx5_core_is_mp_slave(dev) ||
mlx5_core_is_mp_master(dev);
}
static inline int mlx5_core_native_port_num(struct mlx5_core_dev *dev)
{
if (!mlx5_core_mp_enabled(dev))
return 1;
return MLX5_CAP_GEN(dev, native_port_num);
}
enum {
MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
};
#endif /* MLX5_DRIVER_H */
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