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linux-stable/include/linux/mlx5/driver.h
Avihai Horon b247f32aec net/mlx5: Dynamically resize flow counters query buffer 
The flow counters bulk query buffer is allocated once during
mlx5_fc_init_stats(). For PFs and VFs this buffer usually takes a little
more than 512KB of memory, which is aligned to the next power of 2, to
1MB. For SFs, this buffer is reduced and takes around 128 Bytes.

The buffer size determines the maximum number of flow counters that
can be queried at a time. Thus, having a bigger buffer can improve
performance for users that need to query many flow counters.

There are cases that don't use many flow counters and don't need a big
buffer (e.g. SFs, VFs). Since this size is critical with large scale,
in these cases the buffer size should be reduced.

In order to reduce memory consumption while maintaining query
performance, change the query buffer's allocation scheme to the
following:
- First allocate the buffer with small initial size.
- If the number of counters surpasses the initial size, resize the
  buffer to the maximum size.

The buffer only grows and isn't shrank, because users with many flow
counters don't care about the buffer size and we don't want to add
resize overhead if the current number of counters drops.

This solution is preferable to the current one, which is less accurate
and only addresses SFs.

Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-12-02 16:53:16 -08:00

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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/xarray.h>
#include <linux/workqueue.h>
#include <linux/mempool.h>
#include <linux/interrupt.h>
#include <linux/idr.h>
#include <linux/notifier.h>
#include <linux/refcount.h>
#include <linux/auxiliary_bus.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>
#include <net/devlink.h>
#define MLX5_ADEV_NAME "mlx5_core"
#define MLX5_IRQ_EQ_CTRL (U8_MAX)
enum {
MLX5_BOARD_ID_LEN = 64,
};
enum {
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_CORE_DUMP = 0x402e,
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_PDDR = 0x5031,
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_MFRL = 0x9028,
MLX5_REG_MLCR = 0x902b,
MLX5_REG_MRTC = 0x902d,
MLX5_REG_MTRC_CAP = 0x9040,
MLX5_REG_MTRC_CONF = 0x9041,
MLX5_REG_MTRC_STDB = 0x9042,
MLX5_REG_MTRC_CTRL = 0x9043,
MLX5_REG_MPEIN = 0x9050,
MLX5_REG_MPCNT = 0x9051,
MLX5_REG_MTPPS = 0x9053,
MLX5_REG_MTPPSE = 0x9054,
MLX5_REG_MTUTC = 0x9055,
MLX5_REG_MPEGC = 0x9056,
MLX5_REG_MCQS = 0x9060,
MLX5_REG_MCQI = 0x9061,
MLX5_REG_MCC = 0x9062,
MLX5_REG_MCDA = 0x9063,
MLX5_REG_MCAM = 0x907f,
MLX5_REG_MIRC = 0x9162,
MLX5_REG_SBCAM = 0xB01F,
MLX5_REG_RESOURCE_DUMP = 0xC000,
MLX5_REG_DTOR = 0xC00E,
};
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
};
enum mlx5_coredev_type {
MLX5_COREDEV_PF,
MLX5_COREDEV_VF,
MLX5_COREDEV_SF,
};
struct mlx5_field_desc {
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[];
};
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,
};
enum mlx5_cmdif_state {
MLX5_CMDIF_STATE_UNINITIALIZED,
MLX5_CMDIF_STATE_UP,
MLX5_CMDIF_STATE_DOWN,
};
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;
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;
/* protect command average calculations */
spinlock_t lock;
};
struct mlx5_cmd {
struct mlx5_nb nb;
enum mlx5_cmdif_state state;
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;
u16 allowed_opcode;
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;
};
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;
};
#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;
refcount_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;
u8 synd;
u32 fatal_error;
u32 crdump_size;
/* wq spinlock to synchronize draining */
spinlock_t wq_lock;
struct workqueue_struct *wq;
unsigned long flags;
struct work_struct fatal_report_work;
struct work_struct report_work;
struct devlink_health_reporter *fw_reporter;
struct devlink_health_reporter *fw_fatal_reporter;
struct delayed_work update_fw_log_ts_work;
};
struct mlx5_qp_table {
struct notifier_block nb;
/* protect radix tree
*/
spinlock_t lock;
struct radix_tree_root tree;
};
struct mlx5_vf_context {
int enabled;
u64 port_guid;
u64 node_guid;
/* Valid bits are used to validate administrative guid only.
* Enabled after ndo_set_vf_guid
*/
u8 port_guid_valid:1;
u8 node_guid_valid:1;
enum port_state_policy policy;
};
struct mlx5_core_sriov {
struct mlx5_vf_context *vfs_ctx;
int num_vfs;
u16 max_vfs;
};
struct mlx5_fc_pool {
struct mlx5_core_dev *dev;
struct mutex pool_lock; /* protects pool lists */
struct list_head fully_used;
struct list_head partially_used;
struct list_head unused;
int available_fcs;
int used_fcs;
int threshold;
};
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 */
u32 *bulk_query_out;
int bulk_query_len;
size_t num_counters;
bool bulk_query_alloc_failed;
unsigned long next_bulk_query_alloc;
struct mlx5_fc_pool fc_pool;
};
struct mlx5_events;
struct mlx5_mpfs;
struct mlx5_eswitch;
struct mlx5_lag;
struct mlx5_devcom;
struct mlx5_fw_reset;
struct mlx5_eq_table;
struct mlx5_irq_table;
struct mlx5_vhca_state_notifier;
struct mlx5_sf_dev_table;
struct mlx5_sf_hw_table;
struct mlx5_sf_table;
struct mlx5_rate_limit {
u32 rate;
u32 max_burst_sz;
u16 typical_pkt_sz;
};
struct mlx5_rl_entry {
u8 rl_raw[MLX5_ST_SZ_BYTES(set_pp_rate_limit_context)];
u64 refcount;
u16 index;
u16 uid;
u8 dedicated : 1;
};
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;
u64 refcount;
};
struct mlx5_core_roce {
struct mlx5_flow_table *ft;
struct mlx5_flow_group *fg;
struct mlx5_flow_handle *allow_rule;
};
enum {
MLX5_PRIV_FLAGS_DISABLE_IB_ADEV = 1 << 0,
MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV = 1 << 1,
/* Set during device detach to block any further devices
* creation/deletion on drivers rescan. Unset during device attach.
*/
MLX5_PRIV_FLAGS_DETACH = 1 << 2,
};
struct mlx5_adev {
struct auxiliary_device adev;
struct mlx5_core_dev *mdev;
int idx;
};
struct mlx5_ft_pool;
struct mlx5_priv {
/* IRQ table valid only for real pci devices PF or VF */
struct mlx5_irq_table *irq_table;
struct mlx5_eq_table *eq_table;
/* pages stuff */
struct mlx5_nb pg_nb;
struct workqueue_struct *pg_wq;
struct xarray page_root_xa;
int fw_pages;
atomic_t reg_pages;
struct list_head free_list;
int vfs_pages;
int host_pf_pages;
struct mlx5_core_health health;
struct list_head traps;
/* start: qp staff */
struct dentry *qp_debugfs;
struct dentry *eq_debugfs;
struct dentry *cq_debugfs;
struct dentry *cmdif_debugfs;
/* end: qp staff */
/* start: alloc staff */
/* protect buffer allocation 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;
struct list_head ctx_list;
spinlock_t ctx_lock;
struct mlx5_adev **adev;
int adev_idx;
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;
u32 flags;
struct mlx5_devcom *devcom;
struct mlx5_fw_reset *fw_reset;
struct mlx5_core_roce roce;
struct mlx5_fc_stats fc_stats;
struct mlx5_rl_table rl_table;
struct mlx5_ft_pool *ft_pool;
struct mlx5_bfreg_data bfregs;
struct mlx5_uars_page *uar;
#ifdef CONFIG_MLX5_SF
struct mlx5_vhca_state_notifier *vhca_state_notifier;
struct mlx5_sf_dev_table *sf_dev_table;
struct mlx5_core_dev *parent_mdev;
#endif
#ifdef CONFIG_MLX5_SF_MANAGER
struct mlx5_sf_hw_table *sf_hw_table;
struct mlx5_sf_table *sf_table;
#endif
};
enum mlx5_device_state {
MLX5_DEVICE_STATE_UP = 1,
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 {
struct mlx5e_hw_objs {
u32 pdn;
struct mlx5_td td;
u32 mkey;
struct mlx5_sq_bfreg bfreg;
} hw_objs;
struct devlink_port dl_port;
struct net_device *uplink_netdev;
};
enum mlx5_sw_icm_type {
MLX5_SW_ICM_TYPE_STEERING,
MLX5_SW_ICM_TYPE_HEADER_MODIFY,
};
#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_timer {
struct cyclecounter cycles;
struct timecounter tc;
u32 nominal_c_mult;
unsigned long overflow_period;
struct delayed_work overflow_work;
};
struct mlx5_clock {
struct mlx5_nb pps_nb;
seqlock_t lock;
struct hwtstamp_config hwtstamp_config;
struct ptp_clock *ptp;
struct ptp_clock_info ptp_info;
struct mlx5_pps pps_info;
struct mlx5_timer timer;
};
struct mlx5_dm;
struct mlx5_fw_tracer;
struct mlx5_vxlan;
struct mlx5_geneve;
struct mlx5_hv_vhca;
#define MLX5_LOG_SW_ICM_BLOCK_SIZE(dev) (MLX5_CAP_DEV_MEM(dev, log_sw_icm_alloc_granularity))
#define MLX5_SW_ICM_BLOCK_SIZE(dev) (1 << MLX5_LOG_SW_ICM_BLOCK_SIZE(dev))
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
};
struct mlx5_profile {
u64 mask;
u8 log_max_qp;
struct {
int size;
int limit;
} mr_cache[MAX_MR_CACHE_ENTRIES];
};
struct mlx5_hca_cap {
u32 cur[MLX5_UN_SZ_DW(hca_cap_union)];
u32 max[MLX5_UN_SZ_DW(hca_cap_union)];
};
struct mlx5_core_dev {
struct device *device;
enum mlx5_coredev_type coredev_type;
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 {
struct mlx5_hca_cap *hca[MLX5_CAP_NUM];
u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
u32 mcam[MLX5_MCAM_REGS_NUM][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;
struct mlx5_timeouts *timeouts;
u64 sys_image_guid;
phys_addr_t iseg_base;
struct mlx5_init_seg __iomem *iseg;
phys_addr_t bar_addr;
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;
u32 issi;
struct mlx5e_resources mlx5e_res;
struct mlx5_dm *dm;
struct mlx5_vxlan *vxlan;
struct mlx5_geneve *geneve;
struct {
struct mlx5_rsvd_gids reserved_gids;
u32 roce_en;
} roce;
#ifdef CONFIG_MLX5_FPGA
struct mlx5_fpga_device *fpga;
#endif
#ifdef CONFIG_MLX5_ACCEL
const struct mlx5_accel_ipsec_ops *ipsec_ops;
#endif
struct mlx5_clock clock;
struct mlx5_ib_clock_info *clock_info;
struct mlx5_fw_tracer *tracer;
struct mlx5_rsc_dump *rsc_dump;
u32 vsc_addr;
struct mlx5_hv_vhca *hv_vhca;
};
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 handling;
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;
/* Track the max comp handlers */
refcount_t refcnt;
};
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 u32 mlx5_base_mkey(const u32 key)
{
return key & 0xffffff00u;
}
static inline u32 wq_get_byte_sz(u8 log_sz, u8 log_stride)
{
return ((u32)1 << log_sz) << log_stride;
}
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);
}
enum {
CMD_ALLOWED_OPCODE_ALL,
};
void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
void mlx5_cmd_allowed_opcode(struct mlx5_core_dev *dev, u16 opcode);
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);
#define mlx5_cmd_exec_inout(dev, ifc_cmd, in, out) \
({ \
mlx5_cmd_exec(dev, in, MLX5_ST_SZ_BYTES(ifc_cmd##_in), out, \
MLX5_ST_SZ_BYTES(ifc_cmd##_out)); \
})
#define mlx5_cmd_exec_in(dev, ifc_cmd, in) \
({ \
u32 _out[MLX5_ST_SZ_DW(ifc_cmd##_out)] = {}; \
mlx5_cmd_exec_inout(dev, ifc_cmd, in, _out); \
})
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);
bool mlx5_cmd_is_down(struct mlx5_core_dev *dev);
int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
void mlx5_health_flush(struct mlx5_core_dev *dev);
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);
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);
int mlx5_core_create_mkey(struct mlx5_core_dev *dev, u32 *mkey, u32 *in,
int inlen);
int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, u32 mkey);
int mlx5_core_query_mkey(struct mlx5_core_dev *dev, u32 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_perm(struct mlx5_frag_buf *buf, __be64 *pas, u8 perm);
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);
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);
void 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);
void 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);
int mlx5_rl_add_rate_raw(struct mlx5_core_dev *dev, void *rl_in, u16 uid,
bool dedicated_entry, u16 *index);
void mlx5_rl_remove_rate_raw(struct mlx5_core_dev *dev, u16 index);
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 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;
}
/* Async-atomic event notifier used by mlx5 core to forward FW
* evetns received from event queue to mlx5 consumers.
* Optimise event queue dipatching.
*/
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);
/* Async-atomic event notifier used for forwarding
* evetns from the event queue into the to mlx5 events dispatcher,
* eswitch, clock and others.
*/
int mlx5_eq_notifier_register(struct mlx5_core_dev *dev, struct mlx5_nb *nb);
int mlx5_eq_notifier_unregister(struct mlx5_core_dev *dev, struct mlx5_nb *nb);
/* Blocking event notifier used to forward SW events, used for slow path */
int mlx5_blocking_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb);
int mlx5_blocking_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb);
int mlx5_blocking_notifier_call_chain(struct mlx5_core_dev *dev, unsigned int event,
void *data);
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_active(struct mlx5_core_dev *dev);
bool mlx5_lag_is_master(struct mlx5_core_dev *dev);
bool mlx5_lag_is_shared_fdb(struct mlx5_core_dev *dev);
struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
u8 mlx5_lag_get_slave_port(struct mlx5_core_dev *dev,
struct net_device *slave);
int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
u64 *values,
int num_counters,
size_t *offsets);
struct mlx5_core_dev *mlx5_lag_get_peer_mdev(struct mlx5_core_dev *dev);
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);
int mlx5_dm_sw_icm_alloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
u64 length, u32 log_alignment, u16 uid,
phys_addr_t *addr, u32 *obj_id);
int mlx5_dm_sw_icm_dealloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
u64 length, u16 uid, phys_addr_t addr, u32 obj_id);
#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);
enum {
MLX5_PCI_DEV_IS_VF = 1 << 0,
};
static inline bool mlx5_core_is_pf(const struct mlx5_core_dev *dev)
{
return dev->coredev_type == MLX5_COREDEV_PF;
}
static inline bool mlx5_core_is_vf(const struct mlx5_core_dev *dev)
{
return dev->coredev_type == MLX5_COREDEV_VF;
}
static inline bool mlx5_core_is_ecpf(const struct mlx5_core_dev *dev)
{
return dev->caps.embedded_cpu;
}
static inline bool
mlx5_core_is_ecpf_esw_manager(const struct mlx5_core_dev *dev)
{
return dev->caps.embedded_cpu && MLX5_CAP_GEN(dev, eswitch_manager);
}
static inline bool mlx5_ecpf_vport_exists(const struct mlx5_core_dev *dev)
{
return mlx5_core_is_pf(dev) && MLX5_CAP_ESW(dev, ecpf_vport_exists);
}
static inline u16 mlx5_core_max_vfs(const struct mlx5_core_dev *dev)
{
return dev->priv.sriov.max_vfs;
}
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);
}
static inline int mlx5_get_dev_index(struct mlx5_core_dev *dev)
{
int idx = MLX5_CAP_GEN(dev, native_port_num);
if (idx >= 1 && idx <= MLX5_MAX_PORTS)
return idx - 1;
else
return PCI_FUNC(dev->pdev->devfn);
}
enum {
MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
};
static inline bool mlx5_is_roce_init_enabled(struct mlx5_core_dev *dev)
{
struct devlink *devlink = priv_to_devlink(dev);
union devlink_param_value val;
int err;
err = devlink_param_driverinit_value_get(devlink,
DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
&val);
return err ? MLX5_CAP_GEN(dev, roce) : val.vbool;
}
#endif /* MLX5_DRIVER_H */
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