[dpdk.git] / drivers / net / mlx5 / mlx5.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright 2015 6WIND S.A.
 * Copyright 2015 Mellanox Technologies, Ltd
 */

#include <stddef.h>
#include <unistd.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include <errno.h>

#include <rte_malloc.h>
#include <ethdev_driver.h>
#include <rte_pci.h>
#include <rte_bus_pci.h>
#include <rte_common.h>
#include <rte_kvargs.h>
#include <rte_rwlock.h>
#include <rte_spinlock.h>
#include <rte_string_fns.h>
#include <rte_alarm.h>
#include <rte_cycles.h>

#include <mlx5_glue.h>
#include <mlx5_devx_cmds.h>
#include <mlx5_common.h>
#include <mlx5_common_os.h>
#include <mlx5_common_mp.h>
#include <mlx5_malloc.h>

#include "mlx5_defs.h"
#include "mlx5.h"
#include "mlx5_utils.h"
#include "mlx5_rxtx.h"
#include "mlx5_rx.h"
#include "mlx5_tx.h"
#include "mlx5_autoconf.h"
#include "mlx5_mr.h"
#include "mlx5_flow.h"
#include "mlx5_flow_os.h"
#include "rte_pmd_mlx5.h"

#define MLX5_ETH_DRIVER_NAME mlx5_eth

/* Driver type key for new device global syntax. */
#define MLX5_DRIVER_KEY "driver"

/* Device parameter to enable RX completion queue compression. */
#define MLX5_RXQ_CQE_COMP_EN "rxq_cqe_comp_en"

/* Device parameter to enable padding Rx packet to cacheline size. */
#define MLX5_RXQ_PKT_PAD_EN "rxq_pkt_pad_en"

/* Device parameter to enable Multi-Packet Rx queue. */
#define MLX5_RX_MPRQ_EN "mprq_en"

/* Device parameter to configure log 2 of the number of strides for MPRQ. */
#define MLX5_RX_MPRQ_LOG_STRIDE_NUM "mprq_log_stride_num"

/* Device parameter to configure log 2 of the stride size for MPRQ. */
#define MLX5_RX_MPRQ_LOG_STRIDE_SIZE "mprq_log_stride_size"

/* Device parameter to limit the size of memcpy'd packet for MPRQ. */
#define MLX5_RX_MPRQ_MAX_MEMCPY_LEN "mprq_max_memcpy_len"

/* Device parameter to set the minimum number of Rx queues to enable MPRQ. */
#define MLX5_RXQS_MIN_MPRQ "rxqs_min_mprq"

/* Device parameter to configure inline send. Deprecated, ignored.*/
#define MLX5_TXQ_INLINE "txq_inline"

/* Device parameter to limit packet size to inline with ordinary SEND. */
#define MLX5_TXQ_INLINE_MAX "txq_inline_max"

/* Device parameter to configure minimal data size to inline. */
#define MLX5_TXQ_INLINE_MIN "txq_inline_min"

/* Device parameter to limit packet size to inline with Enhanced MPW. */
#define MLX5_TXQ_INLINE_MPW "txq_inline_mpw"

/*
 * Device parameter to configure the number of TX queues threshold for
 * enabling inline send.
 */
#define MLX5_TXQS_MIN_INLINE "txqs_min_inline"

/*
 * Device parameter to configure the number of TX queues threshold for
 * enabling vectorized Tx, deprecated, ignored (no vectorized Tx routines).
 */
#define MLX5_TXQS_MAX_VEC "txqs_max_vec"

/* Device parameter to enable multi-packet send WQEs. */
#define MLX5_TXQ_MPW_EN "txq_mpw_en"

/*
 * Device parameter to force doorbell register mapping
 * to non-cahed region eliminating the extra write memory barrier.
 */
#define MLX5_TX_DB_NC "tx_db_nc"

/*
 * Device parameter to include 2 dsegs in the title WQEBB.
 * Deprecated, ignored.
 */
#define MLX5_TXQ_MPW_HDR_DSEG_EN "txq_mpw_hdr_dseg_en"

/*
 * Device parameter to limit the size of inlining packet.
 * Deprecated, ignored.
 */
#define MLX5_TXQ_MAX_INLINE_LEN "txq_max_inline_len"

/*
 * Device parameter to enable Tx scheduling on timestamps
 * and specify the packet pacing granularity in nanoseconds.
 */
#define MLX5_TX_PP "tx_pp"

/*
 * Device parameter to specify skew in nanoseconds on Tx datapath,
 * it represents the time between SQ start WQE processing and
 * appearing actual packet data on the wire.
 */
#define MLX5_TX_SKEW "tx_skew"

/*
 * Device parameter to enable hardware Tx vector.
 * Deprecated, ignored (no vectorized Tx routines anymore).
 */
#define MLX5_TX_VEC_EN "tx_vec_en"

/* Device parameter to enable hardware Rx vector. */
#define MLX5_RX_VEC_EN "rx_vec_en"

/* Allow L3 VXLAN flow creation. */
#define MLX5_L3_VXLAN_EN "l3_vxlan_en"

/* Activate DV E-Switch flow steering. */
#define MLX5_DV_ESW_EN "dv_esw_en"

/* Activate DV flow steering. */
#define MLX5_DV_FLOW_EN "dv_flow_en"

/* Enable extensive flow metadata support. */
#define MLX5_DV_XMETA_EN "dv_xmeta_en"

/* Device parameter to let the user manage the lacp traffic of bonded device */
#define MLX5_LACP_BY_USER "lacp_by_user"

/* Activate Netlink support in VF mode. */
#define MLX5_VF_NL_EN "vf_nl_en"

/* Enable extending memsegs when creating a MR. */
#define MLX5_MR_EXT_MEMSEG_EN "mr_ext_memseg_en"

/* Select port representors to instantiate. */
#define MLX5_REPRESENTOR "representor"

/* Device parameter to configure the maximum number of dump files per queue. */
#define MLX5_MAX_DUMP_FILES_NUM "max_dump_files_num"

/* Configure timeout of LRO session (in microseconds). */
#define MLX5_LRO_TIMEOUT_USEC "lro_timeout_usec"

/*
 * Device parameter to configure the total data buffer size for a single
 * hairpin queue (logarithm value).
 */
#define MLX5_HP_BUF_SIZE "hp_buf_log_sz"

/* Flow memory reclaim mode. */
#define MLX5_RECLAIM_MEM "reclaim_mem_mode"

/* The default memory allocator used in PMD. */
#define MLX5_SYS_MEM_EN "sys_mem_en"
/* Decap will be used or not. */
#define MLX5_DECAP_EN "decap_en"

/* Device parameter to configure allow or prevent duplicate rules pattern. */
#define MLX5_ALLOW_DUPLICATE_PATTERN "allow_duplicate_pattern"

/* Device parameter to configure implicit registration of mempool memory. */
#define MLX5_MR_MEMPOOL_REG_EN "mr_mempool_reg_en"

/* Shared memory between primary and secondary processes. */
struct mlx5_shared_data *mlx5_shared_data;

/** Driver-specific log messages type. */
int mlx5_logtype;

static LIST_HEAD(, mlx5_dev_ctx_shared) mlx5_dev_ctx_list =
                                                LIST_HEAD_INITIALIZER();
static pthread_mutex_t mlx5_dev_ctx_list_mutex;
static const struct mlx5_indexed_pool_config mlx5_ipool_cfg[] = {
#if defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_INFINIBAND_VERBS_H)
        [MLX5_IPOOL_DECAP_ENCAP] = {
                .size = sizeof(struct mlx5_flow_dv_encap_decap_resource),
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_encap_decap_ipool",
        },
        [MLX5_IPOOL_PUSH_VLAN] = {
                .size = sizeof(struct mlx5_flow_dv_push_vlan_action_resource),
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_push_vlan_ipool",
        },
        [MLX5_IPOOL_TAG] = {
                .size = sizeof(struct mlx5_flow_dv_tag_resource),
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 0,
                .per_core_cache = (1 << 16),
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_tag_ipool",
        },
        [MLX5_IPOOL_PORT_ID] = {
                .size = sizeof(struct mlx5_flow_dv_port_id_action_resource),
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_port_id_ipool",
        },
        [MLX5_IPOOL_JUMP] = {
                .size = sizeof(struct mlx5_flow_tbl_data_entry),
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_jump_ipool",
        },
        [MLX5_IPOOL_SAMPLE] = {
                .size = sizeof(struct mlx5_flow_dv_sample_resource),
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_sample_ipool",
        },
        [MLX5_IPOOL_DEST_ARRAY] = {
                .size = sizeof(struct mlx5_flow_dv_dest_array_resource),
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_dest_array_ipool",
        },
        [MLX5_IPOOL_TUNNEL_ID] = {
                .size = sizeof(struct mlx5_flow_tunnel),
                .trunk_size = MLX5_MAX_TUNNELS,
                .need_lock = 1,
                .release_mem_en = 1,
                .type = "mlx5_tunnel_offload",
        },
        [MLX5_IPOOL_TNL_TBL_ID] = {
                .size = 0,
                .need_lock = 1,
                .type = "mlx5_flow_tnl_tbl_ipool",
        },
#endif
        [MLX5_IPOOL_MTR] = {
                /**
                 * The ipool index should grow continually from small to big,
                 * for meter idx, so not set grow_trunk to avoid meter index
                 * not jump continually.
                 */
                .size = sizeof(struct mlx5_legacy_flow_meter),
                .trunk_size = 64,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_meter_ipool",
        },
        [MLX5_IPOOL_MCP] = {
                .size = sizeof(struct mlx5_flow_mreg_copy_resource),
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_mcp_ipool",
        },
        [MLX5_IPOOL_HRXQ] = {
                .size = (sizeof(struct mlx5_hrxq) + MLX5_RSS_HASH_KEY_LEN),
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_hrxq_ipool",
        },
        [MLX5_IPOOL_MLX5_FLOW] = {
                /*
                 * MLX5_IPOOL_MLX5_FLOW size varies for DV and VERBS flows.
                 * It set in run time according to PCI function configuration.
                 */
                .size = 0,
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 0,
                .per_core_cache = 1 << 19,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_flow_handle_ipool",
        },
        [MLX5_IPOOL_RTE_FLOW] = {
                .size = sizeof(struct rte_flow),
                .trunk_size = 4096,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "rte_flow_ipool",
        },
        [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID] = {
                .size = 0,
                .need_lock = 1,
                .type = "mlx5_flow_rss_id_ipool",
        },
        [MLX5_IPOOL_RSS_SHARED_ACTIONS] = {
                .size = sizeof(struct mlx5_shared_action_rss),
                .trunk_size = 64,
                .grow_trunk = 3,
                .grow_shift = 2,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_shared_action_rss",
        },
        [MLX5_IPOOL_MTR_POLICY] = {
                /**
                 * The ipool index should grow continually from small to big,
                 * for policy idx, so not set grow_trunk to avoid policy index
                 * not jump continually.
                 */
                .size = sizeof(struct mlx5_flow_meter_sub_policy),
                .trunk_size = 64,
                .need_lock = 1,
                .release_mem_en = 1,
                .malloc = mlx5_malloc,
                .free = mlx5_free,
                .type = "mlx5_meter_policy_ipool",
        },
};


#define MLX5_FLOW_MIN_ID_POOL_SIZE 512
#define MLX5_ID_GENERATION_ARRAY_FACTOR 16

#define MLX5_FLOW_TABLE_HLIST_ARRAY_SIZE 1024

/**
 * Decide whether representor ID is a HPF(host PF) port on BF2.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 *
 * @return
 *   Non-zero if HPF, otherwise 0.
 */
bool
mlx5_is_hpf(struct rte_eth_dev *dev)
{
        struct mlx5_priv *priv = dev->data->dev_private;
        uint16_t repr = MLX5_REPRESENTOR_REPR(priv->representor_id);
        int type = MLX5_REPRESENTOR_TYPE(priv->representor_id);

        return priv->representor != 0 && type == RTE_ETH_REPRESENTOR_VF &&
               MLX5_REPRESENTOR_REPR(-1) == repr;
}

/**
 * Decide whether representor ID is a SF port representor.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 *
 * @return
 *   Non-zero if HPF, otherwise 0.
 */
bool
mlx5_is_sf_repr(struct rte_eth_dev *dev)
{
        struct mlx5_priv *priv = dev->data->dev_private;
        int type = MLX5_REPRESENTOR_TYPE(priv->representor_id);

        return priv->representor != 0 && type == RTE_ETH_REPRESENTOR_SF;
}

/**
 * Initialize the ASO aging management structure.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object to free
 *
 * @return
 *   0 on success, a negative errno value otherwise and rte_errno is set.
 */
int
mlx5_flow_aso_age_mng_init(struct mlx5_dev_ctx_shared *sh)
{
        int err;

        if (sh->aso_age_mng)
                return 0;
        sh->aso_age_mng = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*sh->aso_age_mng),
                                      RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
        if (!sh->aso_age_mng) {
                DRV_LOG(ERR, "aso_age_mng allocation was failed.");
                rte_errno = ENOMEM;
                return -ENOMEM;
        }
        err = mlx5_aso_queue_init(sh, ASO_OPC_MOD_FLOW_HIT);
        if (err) {
                mlx5_free(sh->aso_age_mng);
                return -1;
        }
        rte_spinlock_init(&sh->aso_age_mng->resize_sl);
        rte_spinlock_init(&sh->aso_age_mng->free_sl);
        LIST_INIT(&sh->aso_age_mng->free);
        return 0;
}

/**
 * Close and release all the resources of the ASO aging management structure.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object to free.
 */
static void
mlx5_flow_aso_age_mng_close(struct mlx5_dev_ctx_shared *sh)
{
        int i, j;

        mlx5_aso_flow_hit_queue_poll_stop(sh);
        mlx5_aso_queue_uninit(sh, ASO_OPC_MOD_FLOW_HIT);
        if (sh->aso_age_mng->pools) {
                struct mlx5_aso_age_pool *pool;

                for (i = 0; i < sh->aso_age_mng->next; ++i) {
                        pool = sh->aso_age_mng->pools[i];
                        claim_zero(mlx5_devx_cmd_destroy
                                                (pool->flow_hit_aso_obj));
                        for (j = 0; j < MLX5_COUNTERS_PER_POOL; ++j)
                                if (pool->actions[j].dr_action)
                                        claim_zero
                                            (mlx5_flow_os_destroy_flow_action
                                              (pool->actions[j].dr_action));
                        mlx5_free(pool);
                }
                mlx5_free(sh->aso_age_mng->pools);
        }
        mlx5_free(sh->aso_age_mng);
}

/**
 * Initialize the shared aging list information per port.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object.
 */
static void
mlx5_flow_aging_init(struct mlx5_dev_ctx_shared *sh)
{
        uint32_t i;
        struct mlx5_age_info *age_info;

        for (i = 0; i < sh->max_port; i++) {
                age_info = &sh->port[i].age_info;
                age_info->flags = 0;
                TAILQ_INIT(&age_info->aged_counters);
                LIST_INIT(&age_info->aged_aso);
                rte_spinlock_init(&age_info->aged_sl);
                MLX5_AGE_SET(age_info, MLX5_AGE_TRIGGER);
        }
}

/**
 * Initialize the counters management structure.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object to free
 */
static void
mlx5_flow_counters_mng_init(struct mlx5_dev_ctx_shared *sh)
{
        struct mlx5_hca_attr *attr = &sh->cdev->config.hca_attr;
        int i;

        memset(&sh->cmng, 0, sizeof(sh->cmng));
        TAILQ_INIT(&sh->cmng.flow_counters);
        sh->cmng.min_id = MLX5_CNT_BATCH_OFFSET;
        sh->cmng.max_id = -1;
        sh->cmng.last_pool_idx = POOL_IDX_INVALID;
        rte_spinlock_init(&sh->cmng.pool_update_sl);
        for (i = 0; i < MLX5_COUNTER_TYPE_MAX; i++) {
                TAILQ_INIT(&sh->cmng.counters[i]);
                rte_spinlock_init(&sh->cmng.csl[i]);
        }
        if (sh->devx && !haswell_broadwell_cpu) {
                sh->cmng.relaxed_ordering_write = attr->relaxed_ordering_write;
                sh->cmng.relaxed_ordering_read = attr->relaxed_ordering_read;
        }
}

/**
 * Destroy all the resources allocated for a counter memory management.
 *
 * @param[in] mng
 *   Pointer to the memory management structure.
 */
static void
mlx5_flow_destroy_counter_stat_mem_mng(struct mlx5_counter_stats_mem_mng *mng)
{
        uint8_t *mem = (uint8_t *)(uintptr_t)mng->raws[0].data;

        LIST_REMOVE(mng, next);
        claim_zero(mlx5_devx_cmd_destroy(mng->dm));
        claim_zero(mlx5_os_umem_dereg(mng->umem));
        mlx5_free(mem);
}

/**
 * Close and release all the resources of the counters management.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object to free.
 */
static void
mlx5_flow_counters_mng_close(struct mlx5_dev_ctx_shared *sh)
{
        struct mlx5_counter_stats_mem_mng *mng;
        int i, j;
        int retries = 1024;

        rte_errno = 0;
        while (--retries) {
                rte_eal_alarm_cancel(mlx5_flow_query_alarm, sh);
                if (rte_errno != EINPROGRESS)
                        break;
                rte_pause();
        }

        if (sh->cmng.pools) {
                struct mlx5_flow_counter_pool *pool;
                uint16_t n_valid = sh->cmng.n_valid;
                bool fallback = sh->cmng.counter_fallback;

                for (i = 0; i < n_valid; ++i) {
                        pool = sh->cmng.pools[i];
                        if (!fallback && pool->min_dcs)
                                claim_zero(mlx5_devx_cmd_destroy
                                                               (pool->min_dcs));
                        for (j = 0; j < MLX5_COUNTERS_PER_POOL; ++j) {
                                struct mlx5_flow_counter *cnt =
                                                MLX5_POOL_GET_CNT(pool, j);

                                if (cnt->action)
                                        claim_zero
                                         (mlx5_flow_os_destroy_flow_action
                                          (cnt->action));
                                if (fallback && MLX5_POOL_GET_CNT
                                    (pool, j)->dcs_when_free)
                                        claim_zero(mlx5_devx_cmd_destroy
                                                   (cnt->dcs_when_free));
                        }
                        mlx5_free(pool);
                }
                mlx5_free(sh->cmng.pools);
        }
        mng = LIST_FIRST(&sh->cmng.mem_mngs);
        while (mng) {
                mlx5_flow_destroy_counter_stat_mem_mng(mng);
                mng = LIST_FIRST(&sh->cmng.mem_mngs);
        }
        memset(&sh->cmng, 0, sizeof(sh->cmng));
}

/**
 * Initialize the aso flow meters management structure.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object to free
 */
int
mlx5_aso_flow_mtrs_mng_init(struct mlx5_dev_ctx_shared *sh)
{
        if (!sh->mtrmng) {
                sh->mtrmng = mlx5_malloc(MLX5_MEM_ZERO,
                        sizeof(*sh->mtrmng),
                        RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
                if (!sh->mtrmng) {
                        DRV_LOG(ERR,
                        "meter management allocation was failed.");
                        rte_errno = ENOMEM;
                        return -ENOMEM;
                }
                if (sh->meter_aso_en) {
                        rte_spinlock_init(&sh->mtrmng->pools_mng.mtrsl);
                        LIST_INIT(&sh->mtrmng->pools_mng.meters);
                }
                sh->mtrmng->def_policy_id = MLX5_INVALID_POLICY_ID;
        }
        return 0;
}

/**
 * Close and release all the resources of
 * the ASO flow meter management structure.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object to free.
 */
static void
mlx5_aso_flow_mtrs_mng_close(struct mlx5_dev_ctx_shared *sh)
{
        struct mlx5_aso_mtr_pool *mtr_pool;
        struct mlx5_flow_mtr_mng *mtrmng = sh->mtrmng;
        uint32_t idx;
#ifdef HAVE_MLX5_DR_CREATE_ACTION_ASO
        struct mlx5_aso_mtr *aso_mtr;
        int i;
#endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO */

        if (sh->meter_aso_en) {
                mlx5_aso_queue_uninit(sh, ASO_OPC_MOD_POLICER);
                idx = mtrmng->pools_mng.n_valid;
                while (idx--) {
                        mtr_pool = mtrmng->pools_mng.pools[idx];
#ifdef HAVE_MLX5_DR_CREATE_ACTION_ASO
                        for (i = 0; i < MLX5_ASO_MTRS_PER_POOL; i++) {
                                aso_mtr = &mtr_pool->mtrs[i];
                                if (aso_mtr->fm.meter_action)
                                        claim_zero
                                        (mlx5_glue->destroy_flow_action
                                        (aso_mtr->fm.meter_action));
                        }
#endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO */
                        claim_zero(mlx5_devx_cmd_destroy
                                                (mtr_pool->devx_obj));
                        mtrmng->pools_mng.n_valid--;
                        mlx5_free(mtr_pool);
                }
                mlx5_free(sh->mtrmng->pools_mng.pools);
        }
        mlx5_free(sh->mtrmng);
        sh->mtrmng = NULL;
}

/* Send FLOW_AGED event if needed. */
void
mlx5_age_event_prepare(struct mlx5_dev_ctx_shared *sh)
{
        struct mlx5_age_info *age_info;
        uint32_t i;

        for (i = 0; i < sh->max_port; i++) {
                age_info = &sh->port[i].age_info;
                if (!MLX5_AGE_GET(age_info, MLX5_AGE_EVENT_NEW))
                        continue;
                MLX5_AGE_UNSET(age_info, MLX5_AGE_EVENT_NEW);
                if (MLX5_AGE_GET(age_info, MLX5_AGE_TRIGGER)) {
                        MLX5_AGE_UNSET(age_info, MLX5_AGE_TRIGGER);
                        rte_eth_dev_callback_process
                                (&rte_eth_devices[sh->port[i].devx_ih_port_id],
                                RTE_ETH_EVENT_FLOW_AGED, NULL);
                }
        }
}

/*
 * Initialize the ASO connection tracking structure.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object.
 *
 * @return
 *   0 on success, a negative errno value otherwise and rte_errno is set.
 */
int
mlx5_flow_aso_ct_mng_init(struct mlx5_dev_ctx_shared *sh)
{
        int err;

        if (sh->ct_mng)
                return 0;
        sh->ct_mng = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*sh->ct_mng),
                                 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
        if (!sh->ct_mng) {
                DRV_LOG(ERR, "ASO CT management allocation failed.");
                rte_errno = ENOMEM;
                return -rte_errno;
        }
        err = mlx5_aso_queue_init(sh, ASO_OPC_MOD_CONNECTION_TRACKING);
        if (err) {
                mlx5_free(sh->ct_mng);
                /* rte_errno should be extracted from the failure. */
                rte_errno = EINVAL;
                return -rte_errno;
        }
        rte_spinlock_init(&sh->ct_mng->ct_sl);
        rte_rwlock_init(&sh->ct_mng->resize_rwl);
        LIST_INIT(&sh->ct_mng->free_cts);
        return 0;
}

/*
 * Close and release all the resources of the
 * ASO connection tracking management structure.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object to free.
 */
static void
mlx5_flow_aso_ct_mng_close(struct mlx5_dev_ctx_shared *sh)
{
        struct mlx5_aso_ct_pools_mng *mng = sh->ct_mng;
        struct mlx5_aso_ct_pool *ct_pool;
        struct mlx5_aso_ct_action *ct;
        uint32_t idx;
        uint32_t val;
        uint32_t cnt;
        int i;

        mlx5_aso_queue_uninit(sh, ASO_OPC_MOD_CONNECTION_TRACKING);
        idx = mng->next;
        while (idx--) {
                cnt = 0;
                ct_pool = mng->pools[idx];
                for (i = 0; i < MLX5_ASO_CT_ACTIONS_PER_POOL; i++) {
                        ct = &ct_pool->actions[i];
                        val = __atomic_fetch_sub(&ct->refcnt, 1,
                                                 __ATOMIC_RELAXED);
                        MLX5_ASSERT(val == 1);
                        if (val > 1)
                                cnt++;
#ifdef HAVE_MLX5_DR_ACTION_ASO_CT
                        if (ct->dr_action_orig)
                                claim_zero(mlx5_glue->destroy_flow_action
                                                        (ct->dr_action_orig));
                        if (ct->dr_action_rply)
                                claim_zero(mlx5_glue->destroy_flow_action
                                                        (ct->dr_action_rply));
#endif
                }
                claim_zero(mlx5_devx_cmd_destroy(ct_pool->devx_obj));
                if (cnt) {
                        DRV_LOG(DEBUG, "%u ASO CT objects are being used in the pool %u",
                                cnt, i);
                }
                mlx5_free(ct_pool);
                /* in case of failure. */
                mng->next--;
        }
        mlx5_free(mng->pools);
        mlx5_free(mng);
        /* Management structure must be cleared to 0s during allocation. */
        sh->ct_mng = NULL;
}

/**
 * Initialize the flow resources' indexed mempool.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object.
 * @param[in] config
 *   Pointer to user dev config.
 */
static void
mlx5_flow_ipool_create(struct mlx5_dev_ctx_shared *sh,
                       const struct mlx5_dev_config *config)
{
        uint8_t i;
        struct mlx5_indexed_pool_config cfg;

        for (i = 0; i < MLX5_IPOOL_MAX; ++i) {
                cfg = mlx5_ipool_cfg[i];
                switch (i) {
                default:
                        break;
                /*
                 * Set MLX5_IPOOL_MLX5_FLOW ipool size
                 * according to PCI function flow configuration.
                 */
                case MLX5_IPOOL_MLX5_FLOW:
                        cfg.size = config->dv_flow_en ?
                                sizeof(struct mlx5_flow_handle) :
                                MLX5_FLOW_HANDLE_VERBS_SIZE;
                        break;
                }
                if (config->reclaim_mode) {
                        cfg.release_mem_en = 1;
                        cfg.per_core_cache = 0;
                } else {
                        cfg.release_mem_en = 0;
                }
                sh->ipool[i] = mlx5_ipool_create(&cfg);
        }
}


/**
 * Release the flow resources' indexed mempool.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object.
 */
static void
mlx5_flow_ipool_destroy(struct mlx5_dev_ctx_shared *sh)
{
        uint8_t i;

        for (i = 0; i < MLX5_IPOOL_MAX; ++i)
                mlx5_ipool_destroy(sh->ipool[i]);
        for (i = 0; i < MLX5_MAX_MODIFY_NUM; ++i)
                if (sh->mdh_ipools[i])
                        mlx5_ipool_destroy(sh->mdh_ipools[i]);
}

/*
 * Check if dynamic flex parser for eCPRI already exists.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 *
 * @return
 *   true on exists, false on not.
 */
bool
mlx5_flex_parser_ecpri_exist(struct rte_eth_dev *dev)
{
        struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_flex_parser_profiles *prf =
                                &priv->sh->fp[MLX5_FLEX_PARSER_ECPRI_0];

        return !!prf->obj;
}

/*
 * Allocation of a flex parser for eCPRI. Once created, this parser related
 * resources will be held until the device is closed.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 *
 * @return
 *   0 on success, a negative errno value otherwise and rte_errno is set.
 */
int
mlx5_flex_parser_ecpri_alloc(struct rte_eth_dev *dev)
{
        struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_flex_parser_profiles *prf =
                                &priv->sh->fp[MLX5_FLEX_PARSER_ECPRI_0];
        struct mlx5_devx_graph_node_attr node = {
                .modify_field_select = 0,
        };
        uint32_t ids[8];
        int ret;

        if (!priv->config.hca_attr.parse_graph_flex_node) {
                DRV_LOG(ERR, "Dynamic flex parser is not supported "
                        "for device %s.", priv->dev_data->name);
                return -ENOTSUP;
        }
        node.header_length_mode = MLX5_GRAPH_NODE_LEN_FIXED;
        /* 8 bytes now: 4B common header + 4B message body header. */
        node.header_length_base_value = 0x8;
        /* After MAC layer: Ether / VLAN. */
        node.in[0].arc_parse_graph_node = MLX5_GRAPH_ARC_NODE_MAC;
        /* Type of compared condition should be 0xAEFE in the L2 layer. */
        node.in[0].compare_condition_value = RTE_ETHER_TYPE_ECPRI;
        /* Sample #0: type in common header. */
        node.sample[0].flow_match_sample_en = 1;
        /* Fixed offset. */
        node.sample[0].flow_match_sample_offset_mode = 0x0;
        /* Only the 2nd byte will be used. */
        node.sample[0].flow_match_sample_field_base_offset = 0x0;
        /* Sample #1: message payload. */
        node.sample[1].flow_match_sample_en = 1;
        /* Fixed offset. */
        node.sample[1].flow_match_sample_offset_mode = 0x0;
        /*
         * Only the first two bytes will be used right now, and its offset will
         * start after the common header that with the length of a DW(u32).
         */
        node.sample[1].flow_match_sample_field_base_offset = sizeof(uint32_t);
        prf->obj = mlx5_devx_cmd_create_flex_parser(priv->sh->cdev->ctx, &node);
        if (!prf->obj) {
                DRV_LOG(ERR, "Failed to create flex parser node object.");
                return (rte_errno == 0) ? -ENODEV : -rte_errno;
        }
        prf->num = 2;
        ret = mlx5_devx_cmd_query_parse_samples(prf->obj, ids, prf->num);
        if (ret) {
                DRV_LOG(ERR, "Failed to query sample IDs.");
                return (rte_errno == 0) ? -ENODEV : -rte_errno;
        }
        prf->offset[0] = 0x0;
        prf->offset[1] = sizeof(uint32_t);
        prf->ids[0] = ids[0];
        prf->ids[1] = ids[1];
        return 0;
}

/*
 * Destroy the flex parser node, including the parser itself, input / output
 * arcs and DW samples. Resources could be reused then.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 */
static void
mlx5_flex_parser_ecpri_release(struct rte_eth_dev *dev)
{
        struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_flex_parser_profiles *prf =
                                &priv->sh->fp[MLX5_FLEX_PARSER_ECPRI_0];

        if (prf->obj)
                mlx5_devx_cmd_destroy(prf->obj);
        prf->obj = NULL;
}

uint32_t
mlx5_get_supported_sw_parsing_offloads(const struct mlx5_hca_attr *attr)
{
        uint32_t sw_parsing_offloads = 0;

        if (attr->swp) {
                sw_parsing_offloads |= MLX5_SW_PARSING_CAP;
                if (attr->swp_csum)
                        sw_parsing_offloads |= MLX5_SW_PARSING_CSUM_CAP;

                if (attr->swp_lso)
                        sw_parsing_offloads |= MLX5_SW_PARSING_TSO_CAP;
        }
        return sw_parsing_offloads;
}

uint32_t
mlx5_get_supported_tunneling_offloads(const struct mlx5_hca_attr *attr)
{
        uint32_t tn_offloads = 0;

        if (attr->tunnel_stateless_vxlan)
                tn_offloads |= MLX5_TUNNELED_OFFLOADS_VXLAN_CAP;
        if (attr->tunnel_stateless_gre)
                tn_offloads |= MLX5_TUNNELED_OFFLOADS_GRE_CAP;
        if (attr->tunnel_stateless_geneve_rx)
                tn_offloads |= MLX5_TUNNELED_OFFLOADS_GENEVE_CAP;
        return tn_offloads;
}

/*
 * Allocate Rx and Tx UARs in robust fashion.
 * This routine handles the following UAR allocation issues:
 *
 *  - tries to allocate the UAR with the most appropriate memory
 *    mapping type from the ones supported by the host
 *
 *  - tries to allocate the UAR with non-NULL base address
 *    OFED 5.0.x and Upstream rdma_core before v29 returned the NULL as
 *    UAR base address if UAR was not the first object in the UAR page.
 *    It caused the PMD failure and we should try to get another UAR
 *    till we get the first one with non-NULL base address returned.
 */
static int
mlx5_alloc_rxtx_uars(struct mlx5_dev_ctx_shared *sh,
                     const struct mlx5_common_dev_config *config)
{
        uint32_t uar_mapping, retry;
        int err = 0;
        void *base_addr;

        for (retry = 0; retry < MLX5_ALLOC_UAR_RETRY; ++retry) {
#ifdef MLX5DV_UAR_ALLOC_TYPE_NC
                /* Control the mapping type according to the settings. */
                uar_mapping = (config->dbnc == MLX5_TXDB_NCACHED) ?
                              MLX5DV_UAR_ALLOC_TYPE_NC :
                              MLX5DV_UAR_ALLOC_TYPE_BF;
#else
                RTE_SET_USED(config);
                /*
                 * It seems we have no way to control the memory mapping type
                 * for the UAR, the default "Write-Combining" type is supposed.
                 * The UAR initialization on queue creation queries the
                 * actual mapping type done by Verbs/kernel and setups the
                 * PMD datapath accordingly.
                 */
                uar_mapping = 0;
#endif
                sh->tx_uar = mlx5_glue->devx_alloc_uar(sh->cdev->ctx,
                                                       uar_mapping);
#ifdef MLX5DV_UAR_ALLOC_TYPE_NC
                if (!sh->tx_uar &&
                    uar_mapping == MLX5DV_UAR_ALLOC_TYPE_BF) {
                        if (config->dbnc == MLX5_TXDB_CACHED ||
                            config->dbnc == MLX5_TXDB_HEURISTIC)
                                DRV_LOG(WARNING, "Devarg tx_db_nc setting "
                                                 "is not supported by DevX");
                        /*
                         * In some environments like virtual machine
                         * the Write Combining mapped might be not supported
                         * and UAR allocation fails. We try "Non-Cached"
                         * mapping for the case. The tx_burst routines take
                         * the UAR mapping type into account on UAR setup
                         * on queue creation.
                         */
                        DRV_LOG(DEBUG, "Failed to allocate Tx DevX UAR (BF)");
                        uar_mapping = MLX5DV_UAR_ALLOC_TYPE_NC;
                        sh->tx_uar = mlx5_glue->devx_alloc_uar(sh->cdev->ctx,
                                                               uar_mapping);
                } else if (!sh->tx_uar &&
                           uar_mapping == MLX5DV_UAR_ALLOC_TYPE_NC) {
                        if (config->dbnc == MLX5_TXDB_NCACHED)
                                DRV_LOG(WARNING, "Devarg tx_db_nc settings "
                                                 "is not supported by DevX");
                        /*
                         * If Verbs/kernel does not support "Non-Cached"
                         * try the "Write-Combining".
                         */
                        DRV_LOG(DEBUG, "Failed to allocate Tx DevX UAR (NC)");
                        uar_mapping = MLX5DV_UAR_ALLOC_TYPE_BF;
                        sh->tx_uar = mlx5_glue->devx_alloc_uar(sh->cdev->ctx,
                                                               uar_mapping);
                }
#endif
                if (!sh->tx_uar) {
                        DRV_LOG(ERR, "Failed to allocate Tx DevX UAR (BF/NC)");
                        err = ENOMEM;
                        goto exit;
                }
                base_addr = mlx5_os_get_devx_uar_base_addr(sh->tx_uar);
                if (base_addr)
                        break;
                /*
                 * The UARs are allocated by rdma_core within the
                 * IB device context, on context closure all UARs
                 * will be freed, should be no memory/object leakage.
                 */
                DRV_LOG(DEBUG, "Retrying to allocate Tx DevX UAR");
                sh->tx_uar = NULL;
        }
        /* Check whether we finally succeeded with valid UAR allocation. */
        if (!sh->tx_uar) {
                DRV_LOG(ERR, "Failed to allocate Tx DevX UAR (NULL base)");
                err = ENOMEM;
                goto exit;
        }
        for (retry = 0; retry < MLX5_ALLOC_UAR_RETRY; ++retry) {
                uar_mapping = 0;
                sh->devx_rx_uar = mlx5_glue->devx_alloc_uar(sh->cdev->ctx,
                                                            uar_mapping);
#ifdef MLX5DV_UAR_ALLOC_TYPE_NC
                if (!sh->devx_rx_uar &&
                    uar_mapping == MLX5DV_UAR_ALLOC_TYPE_BF) {
                        /*
                         * Rx UAR is used to control interrupts only,
                         * should be no datapath noticeable impact,
                         * can try "Non-Cached" mapping safely.
                         */
                        DRV_LOG(DEBUG, "Failed to allocate Rx DevX UAR (BF)");
                        uar_mapping = MLX5DV_UAR_ALLOC_TYPE_NC;
                        sh->devx_rx_uar = mlx5_glue->devx_alloc_uar
                                                   (sh->cdev->ctx, uar_mapping);
                }
#endif
                if (!sh->devx_rx_uar) {
                        DRV_LOG(ERR, "Failed to allocate Rx DevX UAR (BF/NC)");
                        err = ENOMEM;
                        goto exit;
                }
                base_addr = mlx5_os_get_devx_uar_base_addr(sh->devx_rx_uar);
                if (base_addr)
                        break;
                /*
                 * The UARs are allocated by rdma_core within the
                 * IB device context, on context closure all UARs
                 * will be freed, should be no memory/object leakage.
                 */
                DRV_LOG(DEBUG, "Retrying to allocate Rx DevX UAR");
                sh->devx_rx_uar = NULL;
        }
        /* Check whether we finally succeeded with valid UAR allocation. */
        if (!sh->devx_rx_uar) {
                DRV_LOG(ERR, "Failed to allocate Rx DevX UAR (NULL base)");
                err = ENOMEM;
        }
exit:
        return err;
}

/**
 * Unregister the mempool from the protection domain.
 *
 * @param sh
 *   Pointer to the device shared context.
 * @param mp
 *   Mempool being unregistered.
 */
static void
mlx5_dev_ctx_shared_mempool_unregister(struct mlx5_dev_ctx_shared *sh,
                                       struct rte_mempool *mp)
{
        struct mlx5_mp_id mp_id;

        mlx5_mp_id_init(&mp_id, 0);
        if (mlx5_mr_mempool_unregister(&sh->share_cache, mp, &mp_id) < 0)
                DRV_LOG(WARNING, "Failed to unregister mempool %s for PD %p: %s",
                        mp->name, sh->cdev->pd, rte_strerror(rte_errno));
}

/**
 * rte_mempool_walk() callback to register mempools
 * for the protection domain.
 *
 * @param mp
 *   The mempool being walked.
 * @param arg
 *   Pointer to the device shared context.
 */
static void
mlx5_dev_ctx_shared_mempool_register_cb(struct rte_mempool *mp, void *arg)
{
        struct mlx5_dev_ctx_shared *sh = arg;
        struct mlx5_mp_id mp_id;
        int ret;

        mlx5_mp_id_init(&mp_id, 0);
        ret = mlx5_mr_mempool_register(&sh->share_cache, sh->cdev->pd, mp,
                                       &mp_id);
        if (ret < 0 && rte_errno != EEXIST)
                DRV_LOG(ERR, "Failed to register existing mempool %s for PD %p: %s",
                        mp->name, sh->cdev->pd, rte_strerror(rte_errno));
}

/**
 * rte_mempool_walk() callback to unregister mempools
 * from the protection domain.
 *
 * @param mp
 *   The mempool being walked.
 * @param arg
 *   Pointer to the device shared context.
 */
static void
mlx5_dev_ctx_shared_mempool_unregister_cb(struct rte_mempool *mp, void *arg)
{
        mlx5_dev_ctx_shared_mempool_unregister
                                ((struct mlx5_dev_ctx_shared *)arg, mp);
}

/**
 * Mempool life cycle callback for Ethernet devices.
 *
 * @param event
 *   Mempool life cycle event.
 * @param mp
 *   Associated mempool.
 * @param arg
 *   Pointer to a device shared context.
 */
static void
mlx5_dev_ctx_shared_mempool_event_cb(enum rte_mempool_event event,
                                     struct rte_mempool *mp, void *arg)
{
        struct mlx5_dev_ctx_shared *sh = arg;
        struct mlx5_mp_id mp_id;

        switch (event) {
        case RTE_MEMPOOL_EVENT_READY:
                mlx5_mp_id_init(&mp_id, 0);
                if (mlx5_mr_mempool_register(&sh->share_cache, sh->cdev->pd, mp,
                                             &mp_id) < 0)
                        DRV_LOG(ERR, "Failed to register new mempool %s for PD %p: %s",
                                mp->name, sh->cdev->pd,
                                rte_strerror(rte_errno));
                break;
        case RTE_MEMPOOL_EVENT_DESTROY:
                mlx5_dev_ctx_shared_mempool_unregister(sh, mp);
                break;
        }
}

/**
 * Callback used when implicit mempool registration is disabled
 * in order to track Rx mempool destruction.
 *
 * @param event
 *   Mempool life cycle event.
 * @param mp
 *   An Rx mempool registered explicitly when the port is started.
 * @param arg
 *   Pointer to a device shared context.
 */
static void
mlx5_dev_ctx_shared_rx_mempool_event_cb(enum rte_mempool_event event,
                                        struct rte_mempool *mp, void *arg)
{
        struct mlx5_dev_ctx_shared *sh = arg;

        if (event == RTE_MEMPOOL_EVENT_DESTROY)
                mlx5_dev_ctx_shared_mempool_unregister(sh, mp);
}

int
mlx5_dev_ctx_shared_mempool_subscribe(struct rte_eth_dev *dev)
{
        struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_dev_ctx_shared *sh = priv->sh;
        int ret;

        /* Check if we only need to track Rx mempool destruction. */
        if (!sh->cdev->config.mr_mempool_reg_en) {
                ret = rte_mempool_event_callback_register
                                (mlx5_dev_ctx_shared_rx_mempool_event_cb, sh);
                return ret == 0 || rte_errno == EEXIST ? 0 : ret;
        }
        /* Callback for this shared context may be already registered. */
        ret = rte_mempool_event_callback_register
                                (mlx5_dev_ctx_shared_mempool_event_cb, sh);
        if (ret != 0 && rte_errno != EEXIST)
                return ret;
        /* Register mempools only once for this shared context. */
        if (ret == 0)
                rte_mempool_walk(mlx5_dev_ctx_shared_mempool_register_cb, sh);
        return 0;
}

/**
 * Allocate shared device context. If there is multiport device the
 * master and representors will share this context, if there is single
 * port dedicated device, the context will be used by only given
 * port due to unification.
 *
 * Routine first searches the context for the specified device name,
 * if found the shared context assumed and reference counter is incremented.
 * If no context found the new one is created and initialized with specified
 * device context and parameters.
 *
 * @param[in] spawn
 *   Pointer to the device attributes (name, port, etc).
 * @param[in] config
 *   Pointer to device configuration structure.
 *
 * @return
 *   Pointer to mlx5_dev_ctx_shared object on success,
 *   otherwise NULL and rte_errno is set.
 */
struct mlx5_dev_ctx_shared *
mlx5_alloc_shared_dev_ctx(const struct mlx5_dev_spawn_data *spawn,
                          const struct mlx5_dev_config *config)
{
        struct mlx5_dev_ctx_shared *sh;
        int err = 0;
        uint32_t i;
        struct mlx5_devx_tis_attr tis_attr = { 0 };

        MLX5_ASSERT(spawn);
        /* Secondary process should not create the shared context. */
        MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
        pthread_mutex_lock(&mlx5_dev_ctx_list_mutex);
        /* Search for IB context by device name. */
        LIST_FOREACH(sh, &mlx5_dev_ctx_list, next) {
                if (!strcmp(sh->ibdev_name, spawn->phys_dev_name)) {
                        sh->refcnt++;
                        goto exit;
                }
        }
        /* No device found, we have to create new shared context. */
        MLX5_ASSERT(spawn->max_port);
        sh = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
                         sizeof(struct mlx5_dev_ctx_shared) +
                         spawn->max_port *
                         sizeof(struct mlx5_dev_shared_port),
                         RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
        if (!sh) {
                DRV_LOG(ERR, "shared context allocation failure");
                rte_errno  = ENOMEM;
                goto exit;
        }
        pthread_mutex_init(&sh->txpp.mutex, NULL);
        sh->numa_node = spawn->cdev->dev->numa_node;
        sh->cdev = spawn->cdev;
        sh->devx = sh->cdev->config.devx;
        if (spawn->bond_info)
                sh->bond = *spawn->bond_info;
        err = mlx5_os_get_dev_attr(sh->cdev, &sh->device_attr);
        if (err) {
                DRV_LOG(DEBUG, "mlx5_os_get_dev_attr() failed");
                goto error;
        }
        sh->refcnt = 1;
        sh->max_port = spawn->max_port;
        sh->reclaim_mode = config->reclaim_mode;
        strncpy(sh->ibdev_name, mlx5_os_get_ctx_device_name(sh->cdev->ctx),
                sizeof(sh->ibdev_name) - 1);
        strncpy(sh->ibdev_path, mlx5_os_get_ctx_device_path(sh->cdev->ctx),
                sizeof(sh->ibdev_path) - 1);
        /*
         * Setting port_id to max unallowed value means
         * there is no interrupt subhandler installed for
         * the given port index i.
         */
        for (i = 0; i < sh->max_port; i++) {
                sh->port[i].ih_port_id = RTE_MAX_ETHPORTS;
                sh->port[i].devx_ih_port_id = RTE_MAX_ETHPORTS;
        }
        if (sh->devx) {
                sh->td = mlx5_devx_cmd_create_td(sh->cdev->ctx);
                if (!sh->td) {
                        DRV_LOG(ERR, "TD allocation failure");
                        err = ENOMEM;
                        goto error;
                }
                tis_attr.transport_domain = sh->td->id;
                sh->tis = mlx5_devx_cmd_create_tis(sh->cdev->ctx, &tis_attr);
                if (!sh->tis) {
                        DRV_LOG(ERR, "TIS allocation failure");
                        err = ENOMEM;
                        goto error;
                }
                err = mlx5_alloc_rxtx_uars(sh, &sh->cdev->config);
                if (err)
                        goto error;
                MLX5_ASSERT(sh->tx_uar);
                MLX5_ASSERT(mlx5_os_get_devx_uar_base_addr(sh->tx_uar));

                MLX5_ASSERT(sh->devx_rx_uar);
                MLX5_ASSERT(mlx5_os_get_devx_uar_base_addr(sh->devx_rx_uar));
        }
#ifndef RTE_ARCH_64
        /* Initialize UAR access locks for 32bit implementations. */
        rte_spinlock_init(&sh->uar_lock_cq);
        for (i = 0; i < MLX5_UAR_PAGE_NUM_MAX; i++)
                rte_spinlock_init(&sh->uar_lock[i]);
#endif
        /*
         * Once the device is added to the list of memory event
         * callback, its global MR cache table cannot be expanded
         * on the fly because of deadlock. If it overflows, lookup
         * should be done by searching MR list linearly, which is slow.
         *
         * At this point the device is not added to the memory
         * event list yet, context is just being created.
         */
        err = mlx5_mr_create_cache(&sh->share_cache, sh->numa_node);
        if (err) {
                err = rte_errno;
                goto error;
        }
        mlx5_os_dev_shared_handler_install(sh);
        if (LIST_EMPTY(&mlx5_dev_ctx_list)) {
                err = mlx5_flow_os_init_workspace_once();
                if (err)
                        goto error;
        }
        mlx5_flow_aging_init(sh);
        mlx5_flow_counters_mng_init(sh);
        mlx5_flow_ipool_create(sh, config);
        /* Add device to memory callback list. */
        rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
        LIST_INSERT_HEAD(&mlx5_shared_data->mem_event_cb_list,
                         sh, mem_event_cb);
        rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
        /* Add context to the global device list. */
        LIST_INSERT_HEAD(&mlx5_dev_ctx_list, sh, next);
        rte_spinlock_init(&sh->geneve_tlv_opt_sl);
exit:
        pthread_mutex_unlock(&mlx5_dev_ctx_list_mutex);
        return sh;
error:
        pthread_mutex_destroy(&sh->txpp.mutex);
        pthread_mutex_unlock(&mlx5_dev_ctx_list_mutex);
        MLX5_ASSERT(sh);
        if (sh->share_cache.cache.table)
                mlx5_mr_btree_free(&sh->share_cache.cache);
        if (sh->tis)
                claim_zero(mlx5_devx_cmd_destroy(sh->tis));
        if (sh->td)
                claim_zero(mlx5_devx_cmd_destroy(sh->td));
        if (sh->devx_rx_uar)
                mlx5_glue->devx_free_uar(sh->devx_rx_uar);
        if (sh->tx_uar)
                mlx5_glue->devx_free_uar(sh->tx_uar);
        mlx5_free(sh);
        MLX5_ASSERT(err > 0);
        rte_errno = err;
        return NULL;
}

/**
 * Free shared IB device context. Decrement counter and if zero free
 * all allocated resources and close handles.
 *
 * @param[in] sh
 *   Pointer to mlx5_dev_ctx_shared object to free
 */
void
mlx5_free_shared_dev_ctx(struct mlx5_dev_ctx_shared *sh)
{
        int ret;

        pthread_mutex_lock(&mlx5_dev_ctx_list_mutex);
#ifdef RTE_LIBRTE_MLX5_DEBUG
        /* Check the object presence in the list. */
        struct mlx5_dev_ctx_shared *lctx;

        LIST_FOREACH(lctx, &mlx5_dev_ctx_list, next)
                if (lctx == sh)
                        break;
        MLX5_ASSERT(lctx);
        if (lctx != sh) {
                DRV_LOG(ERR, "Freeing non-existing shared IB context");
                goto exit;
        }
#endif
        MLX5_ASSERT(sh);
        MLX5_ASSERT(sh->refcnt);
        /* Secondary process should not free the shared context. */
        MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
        if (--sh->refcnt)
                goto exit;
        /* Stop watching for mempool events and unregister all mempools. */
        ret = rte_mempool_event_callback_unregister
                                (mlx5_dev_ctx_shared_mempool_event_cb, sh);
        if (ret < 0 && rte_errno == ENOENT)
                ret = rte_mempool_event_callback_unregister
                                (mlx5_dev_ctx_shared_rx_mempool_event_cb, sh);
        if (ret == 0)
                rte_mempool_walk(mlx5_dev_ctx_shared_mempool_unregister_cb,
                                 sh);
        /* Remove from memory callback device list. */
        rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
        LIST_REMOVE(sh, mem_event_cb);
        rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
        /* Release created Memory Regions. */
        mlx5_mr_release_cache(&sh->share_cache);
        /* Remove context from the global device list. */
        LIST_REMOVE(sh, next);
        /* Release flow workspaces objects on the last device. */
        if (LIST_EMPTY(&mlx5_dev_ctx_list))
                mlx5_flow_os_release_workspace();
        pthread_mutex_unlock(&mlx5_dev_ctx_list_mutex);
        /*
         *  Ensure there is no async event handler installed.
         *  Only primary process handles async device events.
         **/
        mlx5_flow_counters_mng_close(sh);
        if (sh->aso_age_mng) {
                mlx5_flow_aso_age_mng_close(sh);
                sh->aso_age_mng = NULL;
        }
        if (sh->mtrmng)
                mlx5_aso_flow_mtrs_mng_close(sh);
        mlx5_flow_ipool_destroy(sh);
        mlx5_os_dev_shared_handler_uninstall(sh);
        if (sh->tx_uar) {
                mlx5_glue->devx_free_uar(sh->tx_uar);
                sh->tx_uar = NULL;
        }
        if (sh->tis)
                claim_zero(mlx5_devx_cmd_destroy(sh->tis));
        if (sh->td)
                claim_zero(mlx5_devx_cmd_destroy(sh->td));
        if (sh->devx_rx_uar)
                mlx5_glue->devx_free_uar(sh->devx_rx_uar);
        MLX5_ASSERT(sh->geneve_tlv_option_resource == NULL);
        pthread_mutex_destroy(&sh->txpp.mutex);
        mlx5_free(sh);
        return;
exit:
        pthread_mutex_unlock(&mlx5_dev_ctx_list_mutex);
}

/**
 * Destroy table hash list.
 *
 * @param[in] priv
 *   Pointer to the private device data structure.
 */
void
mlx5_free_table_hash_list(struct mlx5_priv *priv)
{
        struct mlx5_dev_ctx_shared *sh = priv->sh;

        if (!sh->flow_tbls)
                return;
        mlx5_hlist_destroy(sh->flow_tbls);
        sh->flow_tbls = NULL;
}

/**
 * Initialize flow table hash list and create the root tables entry
 * for each domain.
 *
 * @param[in] priv
 *   Pointer to the private device data structure.
 *
 * @return
 *   Zero on success, positive error code otherwise.
 */
int
mlx5_alloc_table_hash_list(struct mlx5_priv *priv __rte_unused)
{
        int err = 0;
        /* Tables are only used in DV and DR modes. */
#if defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_INFINIBAND_VERBS_H)
        struct mlx5_dev_ctx_shared *sh = priv->sh;
        char s[MLX5_NAME_SIZE];

        MLX5_ASSERT(sh);
        snprintf(s, sizeof(s), "%s_flow_table", priv->sh->ibdev_name);
        sh->flow_tbls = mlx5_hlist_create(s, MLX5_FLOW_TABLE_HLIST_ARRAY_SIZE,
                                          false, true, sh,
                                          flow_dv_tbl_create_cb,
                                          flow_dv_tbl_match_cb,
                                          flow_dv_tbl_remove_cb,
                                          flow_dv_tbl_clone_cb,
                                          flow_dv_tbl_clone_free_cb);
        if (!sh->flow_tbls) {
                DRV_LOG(ERR, "flow tables with hash creation failed.");
                err = ENOMEM;
                return err;
        }
#ifndef HAVE_MLX5DV_DR
        struct rte_flow_error error;
        struct rte_eth_dev *dev = &rte_eth_devices[priv->dev_data->port_id];

        /*
         * In case we have not DR support, the zero tables should be created
         * because DV expect to see them even if they cannot be created by
         * RDMA-CORE.
         */
        if (!flow_dv_tbl_resource_get(dev, 0, 0, 0, 0,
                NULL, 0, 1, 0, &error) ||
            !flow_dv_tbl_resource_get(dev, 0, 1, 0, 0,
                NULL, 0, 1, 0, &error) ||
            !flow_dv_tbl_resource_get(dev, 0, 0, 1, 0,
                NULL, 0, 1, 0, &error)) {
                err = ENOMEM;
                goto error;
        }
        return err;
error:
        mlx5_free_table_hash_list(priv);
#endif /* HAVE_MLX5DV_DR */
#endif
        return err;
}

/**
 * Retrieve integer value from environment variable.
 *
 * @param[in] name
 *   Environment variable name.
 *
 * @return
 *   Integer value, 0 if the variable is not set.
 */
int
mlx5_getenv_int(const char *name)
{
        const char *val = getenv(name);

        if (val == NULL)
                return 0;
        return atoi(val);
}

/**
 * DPDK callback to add udp tunnel port
 *
 * @param[in] dev
 *   A pointer to eth_dev
 * @param[in] udp_tunnel
 *   A pointer to udp tunnel
 *
 * @return
 *   0 on valid udp ports and tunnels, -ENOTSUP otherwise.
 */
int
mlx5_udp_tunnel_port_add(struct rte_eth_dev *dev __rte_unused,
                         struct rte_eth_udp_tunnel *udp_tunnel)
{
        MLX5_ASSERT(udp_tunnel != NULL);
        if (udp_tunnel->prot_type == RTE_TUNNEL_TYPE_VXLAN &&
            udp_tunnel->udp_port == 4789)
                return 0;
        if (udp_tunnel->prot_type == RTE_TUNNEL_TYPE_VXLAN_GPE &&
            udp_tunnel->udp_port == 4790)
                return 0;
        return -ENOTSUP;
}

/**
 * Initialize process private data structure.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 *
 * @return
 *   0 on success, a negative errno value otherwise and rte_errno is set.
 */
int
mlx5_proc_priv_init(struct rte_eth_dev *dev)
{
        struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_proc_priv *ppriv;
        size_t ppriv_size;

        mlx5_proc_priv_uninit(dev);
        /*
         * UAR register table follows the process private structure. BlueFlame
         * registers for Tx queues are stored in the table.
         */
        ppriv_size =
                sizeof(struct mlx5_proc_priv) + priv->txqs_n * sizeof(void *);
        ppriv = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, ppriv_size,
                            RTE_CACHE_LINE_SIZE, dev->device->numa_node);
        if (!ppriv) {
                rte_errno = ENOMEM;
                return -rte_errno;
        }
        ppriv->uar_table_sz = priv->txqs_n;
        dev->process_private = ppriv;
        return 0;
}

/**
 * Un-initialize process private data structure.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 */
void
mlx5_proc_priv_uninit(struct rte_eth_dev *dev)
{
        if (!dev->process_private)
                return;
        mlx5_free(dev->process_private);
        dev->process_private = NULL;
}

/**
 * DPDK callback to close the device.
 *
 * Destroy all queues and objects, free memory.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 */
int
mlx5_dev_close(struct rte_eth_dev *dev)
{
        struct mlx5_priv *priv = dev->data->dev_private;
        unsigned int i;
        int ret;

        if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
                /* Check if process_private released. */
                if (!dev->process_private)
                        return 0;
                mlx5_tx_uar_uninit_secondary(dev);
                mlx5_proc_priv_uninit(dev);
                rte_eth_dev_release_port(dev);
                return 0;
        }
        if (!priv->sh)
                return 0;
        DRV_LOG(DEBUG, "port %u closing device \"%s\"",
                dev->data->port_id,
                ((priv->sh->cdev->ctx != NULL) ?
                mlx5_os_get_ctx_device_name(priv->sh->cdev->ctx) : ""));
        /*
         * If default mreg copy action is removed at the stop stage,
         * the search will return none and nothing will be done anymore.
         */
        mlx5_flow_stop_default(dev);
        mlx5_traffic_disable(dev);
        /*
         * If all the flows are already flushed in the device stop stage,
         * then this will return directly without any action.
         */
        mlx5_flow_list_flush(dev, MLX5_FLOW_TYPE_GEN, true);
        mlx5_action_handle_flush(dev);
        mlx5_flow_meter_flush(dev, NULL);
        /* Prevent crashes when queues are still in use. */
        dev->rx_pkt_burst = removed_rx_burst;
        dev->tx_pkt_burst = removed_tx_burst;
        rte_wmb();
        /* Disable datapath on secondary process. */
        mlx5_mp_os_req_stop_rxtx(dev);
        /* Free the eCPRI flex parser resource. */
        mlx5_flex_parser_ecpri_release(dev);
        if (priv->rxqs != NULL) {
                /* XXX race condition if mlx5_rx_burst() is still running. */
                rte_delay_us_sleep(1000);
                for (i = 0; (i != priv->rxqs_n); ++i)
                        mlx5_rxq_release(dev, i);
                priv->rxqs_n = 0;
                priv->rxqs = NULL;
        }
        if (priv->representor) {
                /* Each representor has a dedicated interrupts handler */
                mlx5_free(dev->intr_handle);
                dev->intr_handle = NULL;
        }
        if (priv->txqs != NULL) {
                /* XXX race condition if mlx5_tx_burst() is still running. */
                rte_delay_us_sleep(1000);
                for (i = 0; (i != priv->txqs_n); ++i)
                        mlx5_txq_release(dev, i);
                priv->txqs_n = 0;
                priv->txqs = NULL;
        }
        mlx5_proc_priv_uninit(dev);
        if (priv->q_counters) {
                mlx5_devx_cmd_destroy(priv->q_counters);
                priv->q_counters = NULL;
        }
        if (priv->drop_queue.hrxq)
                mlx5_drop_action_destroy(dev);
        if (priv->mreg_cp_tbl)
                mlx5_hlist_destroy(priv->mreg_cp_tbl);
        mlx5_mprq_free_mp(dev);
        if (priv->sh->ct_mng)
                mlx5_flow_aso_ct_mng_close(priv->sh);
        mlx5_os_free_shared_dr(priv);
        if (priv->rss_conf.rss_key != NULL)
                mlx5_free(priv->rss_conf.rss_key);
        if (priv->reta_idx != NULL)
                mlx5_free(priv->reta_idx);
        if (priv->config.vf)
                mlx5_os_mac_addr_flush(dev);
        if (priv->nl_socket_route >= 0)
                close(priv->nl_socket_route);
        if (priv->nl_socket_rdma >= 0)
                close(priv->nl_socket_rdma);
        if (priv->vmwa_context)
                mlx5_vlan_vmwa_exit(priv->vmwa_context);
        ret = mlx5_hrxq_verify(dev);
        if (ret)
                DRV_LOG(WARNING, "port %u some hash Rx queue still remain",
                        dev->data->port_id);
        ret = mlx5_ind_table_obj_verify(dev);
        if (ret)
                DRV_LOG(WARNING, "port %u some indirection table still remain",
                        dev->data->port_id);
        ret = mlx5_rxq_obj_verify(dev);
        if (ret)
                DRV_LOG(WARNING, "port %u some Rx queue objects still remain",
                        dev->data->port_id);
        ret = mlx5_rxq_verify(dev);
        if (ret)
                DRV_LOG(WARNING, "port %u some Rx queues still remain",
                        dev->data->port_id);
        ret = mlx5_txq_obj_verify(dev);
        if (ret)
                DRV_LOG(WARNING, "port %u some Verbs Tx queue still remain",
                        dev->data->port_id);
        ret = mlx5_txq_verify(dev);
        if (ret)
                DRV_LOG(WARNING, "port %u some Tx queues still remain",
                        dev->data->port_id);
        ret = mlx5_flow_verify(dev);
        if (ret)
                DRV_LOG(WARNING, "port %u some flows still remain",
                        dev->data->port_id);
        if (priv->hrxqs)
                mlx5_list_destroy(priv->hrxqs);
        /*
         * Free the shared context in last turn, because the cleanup
         * routines above may use some shared fields, like
         * mlx5_os_mac_addr_flush() uses ibdev_path for retrieveing
         * ifindex if Netlink fails.
         */
        mlx5_free_shared_dev_ctx(priv->sh);
        if (priv->domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
                unsigned int c = 0;
                uint16_t port_id;

                MLX5_ETH_FOREACH_DEV(port_id, dev->device) {
                        struct mlx5_priv *opriv =
                                rte_eth_devices[port_id].data->dev_private;

                        if (!opriv ||
                            opriv->domain_id != priv->domain_id ||
                            &rte_eth_devices[port_id] == dev)
                                continue;
                        ++c;
                        break;
                }
                if (!c)
                        claim_zero(rte_eth_switch_domain_free(priv->domain_id));
        }
        memset(priv, 0, sizeof(*priv));
        priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
        /*
         * Reset mac_addrs to NULL such that it is not freed as part of
         * rte_eth_dev_release_port(). mac_addrs is part of dev_private so
         * it is freed when dev_private is freed.
         */
        dev->data->mac_addrs = NULL;
        return 0;
}

const struct eth_dev_ops mlx5_dev_ops = {
        .dev_configure = mlx5_dev_configure,
        .dev_start = mlx5_dev_start,
        .dev_stop = mlx5_dev_stop,
        .dev_set_link_down = mlx5_set_link_down,
        .dev_set_link_up = mlx5_set_link_up,
        .dev_close = mlx5_dev_close,
        .promiscuous_enable = mlx5_promiscuous_enable,
        .promiscuous_disable = mlx5_promiscuous_disable,
        .allmulticast_enable = mlx5_allmulticast_enable,
        .allmulticast_disable = mlx5_allmulticast_disable,
        .link_update = mlx5_link_update,
        .stats_get = mlx5_stats_get,
        .stats_reset = mlx5_stats_reset,
        .xstats_get = mlx5_xstats_get,
        .xstats_reset = mlx5_xstats_reset,
        .xstats_get_names = mlx5_xstats_get_names,
        .fw_version_get = mlx5_fw_version_get,
        .dev_infos_get = mlx5_dev_infos_get,
        .representor_info_get = mlx5_representor_info_get,
        .read_clock = mlx5_txpp_read_clock,
        .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
        .vlan_filter_set = mlx5_vlan_filter_set,
        .rx_queue_setup = mlx5_rx_queue_setup,
        .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
        .tx_queue_setup = mlx5_tx_queue_setup,
        .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
        .rx_queue_release = mlx5_rx_queue_release,
        .tx_queue_release = mlx5_tx_queue_release,
        .rx_queue_start = mlx5_rx_queue_start,
        .rx_queue_stop = mlx5_rx_queue_stop,
        .tx_queue_start = mlx5_tx_queue_start,
        .tx_queue_stop = mlx5_tx_queue_stop,
        .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
        .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
        .mac_addr_remove = mlx5_mac_addr_remove,
        .mac_addr_add = mlx5_mac_addr_add,
        .mac_addr_set = mlx5_mac_addr_set,
        .set_mc_addr_list = mlx5_set_mc_addr_list,
        .mtu_set = mlx5_dev_set_mtu,
        .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
        .vlan_offload_set = mlx5_vlan_offload_set,
        .reta_update = mlx5_dev_rss_reta_update,
        .reta_query = mlx5_dev_rss_reta_query,
        .rss_hash_update = mlx5_rss_hash_update,
        .rss_hash_conf_get = mlx5_rss_hash_conf_get,
        .flow_ops_get = mlx5_flow_ops_get,
        .rxq_info_get = mlx5_rxq_info_get,
        .txq_info_get = mlx5_txq_info_get,
        .rx_burst_mode_get = mlx5_rx_burst_mode_get,
        .tx_burst_mode_get = mlx5_tx_burst_mode_get,
        .rx_queue_intr_enable = mlx5_rx_intr_enable,
        .rx_queue_intr_disable = mlx5_rx_intr_disable,
        .is_removed = mlx5_is_removed,
        .udp_tunnel_port_add  = mlx5_udp_tunnel_port_add,
        .get_module_info = mlx5_get_module_info,
        .get_module_eeprom = mlx5_get_module_eeprom,
        .hairpin_cap_get = mlx5_hairpin_cap_get,
        .mtr_ops_get = mlx5_flow_meter_ops_get,
        .hairpin_bind = mlx5_hairpin_bind,
        .hairpin_unbind = mlx5_hairpin_unbind,
        .hairpin_get_peer_ports = mlx5_hairpin_get_peer_ports,
        .hairpin_queue_peer_update = mlx5_hairpin_queue_peer_update,
        .hairpin_queue_peer_bind = mlx5_hairpin_queue_peer_bind,
        .hairpin_queue_peer_unbind = mlx5_hairpin_queue_peer_unbind,
        .get_monitor_addr = mlx5_get_monitor_addr,
};

/* Available operations from secondary process. */
const struct eth_dev_ops mlx5_dev_sec_ops = {
        .stats_get = mlx5_stats_get,
        .stats_reset = mlx5_stats_reset,
        .xstats_get = mlx5_xstats_get,
        .xstats_reset = mlx5_xstats_reset,
        .xstats_get_names = mlx5_xstats_get_names,
        .fw_version_get = mlx5_fw_version_get,
        .dev_infos_get = mlx5_dev_infos_get,
        .representor_info_get = mlx5_representor_info_get,
        .read_clock = mlx5_txpp_read_clock,
        .rx_queue_start = mlx5_rx_queue_start,
        .rx_queue_stop = mlx5_rx_queue_stop,
        .tx_queue_start = mlx5_tx_queue_start,
        .tx_queue_stop = mlx5_tx_queue_stop,
        .rxq_info_get = mlx5_rxq_info_get,
        .txq_info_get = mlx5_txq_info_get,
        .rx_burst_mode_get = mlx5_rx_burst_mode_get,
        .tx_burst_mode_get = mlx5_tx_burst_mode_get,
        .get_module_info = mlx5_get_module_info,
        .get_module_eeprom = mlx5_get_module_eeprom,
};

/* Available operations in flow isolated mode. */
const struct eth_dev_ops mlx5_dev_ops_isolate = {
        .dev_configure = mlx5_dev_configure,
        .dev_start = mlx5_dev_start,
        .dev_stop = mlx5_dev_stop,
        .dev_set_link_down = mlx5_set_link_down,
        .dev_set_link_up = mlx5_set_link_up,
        .dev_close = mlx5_dev_close,
        .promiscuous_enable = mlx5_promiscuous_enable,
        .promiscuous_disable = mlx5_promiscuous_disable,
        .allmulticast_enable = mlx5_allmulticast_enable,
        .allmulticast_disable = mlx5_allmulticast_disable,
        .link_update = mlx5_link_update,
        .stats_get = mlx5_stats_get,
        .stats_reset = mlx5_stats_reset,
        .xstats_get = mlx5_xstats_get,
        .xstats_reset = mlx5_xstats_reset,
        .xstats_get_names = mlx5_xstats_get_names,
        .fw_version_get = mlx5_fw_version_get,
        .dev_infos_get = mlx5_dev_infos_get,
        .representor_info_get = mlx5_representor_info_get,
        .read_clock = mlx5_txpp_read_clock,
        .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
        .vlan_filter_set = mlx5_vlan_filter_set,
        .rx_queue_setup = mlx5_rx_queue_setup,
        .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
        .tx_queue_setup = mlx5_tx_queue_setup,
        .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
        .rx_queue_release = mlx5_rx_queue_release,
        .tx_queue_release = mlx5_tx_queue_release,
        .rx_queue_start = mlx5_rx_queue_start,
        .rx_queue_stop = mlx5_rx_queue_stop,
        .tx_queue_start = mlx5_tx_queue_start,
        .tx_queue_stop = mlx5_tx_queue_stop,
        .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
        .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
        .mac_addr_remove = mlx5_mac_addr_remove,
        .mac_addr_add = mlx5_mac_addr_add,
        .mac_addr_set = mlx5_mac_addr_set,
        .set_mc_addr_list = mlx5_set_mc_addr_list,
        .mtu_set = mlx5_dev_set_mtu,
        .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
        .vlan_offload_set = mlx5_vlan_offload_set,
        .flow_ops_get = mlx5_flow_ops_get,
        .rxq_info_get = mlx5_rxq_info_get,
        .txq_info_get = mlx5_txq_info_get,
        .rx_burst_mode_get = mlx5_rx_burst_mode_get,
        .tx_burst_mode_get = mlx5_tx_burst_mode_get,
        .rx_queue_intr_enable = mlx5_rx_intr_enable,
        .rx_queue_intr_disable = mlx5_rx_intr_disable,
        .is_removed = mlx5_is_removed,
        .get_module_info = mlx5_get_module_info,
        .get_module_eeprom = mlx5_get_module_eeprom,
        .hairpin_cap_get = mlx5_hairpin_cap_get,
        .mtr_ops_get = mlx5_flow_meter_ops_get,
        .hairpin_bind = mlx5_hairpin_bind,
        .hairpin_unbind = mlx5_hairpin_unbind,
        .hairpin_get_peer_ports = mlx5_hairpin_get_peer_ports,
        .hairpin_queue_peer_update = mlx5_hairpin_queue_peer_update,
        .hairpin_queue_peer_bind = mlx5_hairpin_queue_peer_bind,
        .hairpin_queue_peer_unbind = mlx5_hairpin_queue_peer_unbind,
        .get_monitor_addr = mlx5_get_monitor_addr,
};

/**
 * Verify and store value for device argument.
 *
 * @param[in] key
 *   Key argument to verify.
 * @param[in] val
 *   Value associated with key.
 * @param opaque
 *   User data.
 *
 * @return
 *   0 on success, a negative errno value otherwise and rte_errno is set.
 */
static int
mlx5_args_check(const char *key, const char *val, void *opaque)
{
        struct mlx5_dev_config *config = opaque;
        unsigned long mod;
        signed long tmp;

        /* No-op, port representors are processed in mlx5_dev_spawn(). */
        if (!strcmp(MLX5_DRIVER_KEY, key) || !strcmp(MLX5_REPRESENTOR, key) ||
            !strcmp(MLX5_SYS_MEM_EN, key) || !strcmp(MLX5_TX_DB_NC, key) ||
            !strcmp(MLX5_MR_MEMPOOL_REG_EN, key) ||
            !strcmp(MLX5_MR_EXT_MEMSEG_EN, key))
                return 0;
        errno = 0;
        tmp = strtol(val, NULL, 0);
        if (errno) {
                rte_errno = errno;
                DRV_LOG(WARNING, "%s: \"%s\" is not a valid integer", key, val);
                return -rte_errno;
        }
        if (tmp < 0 && strcmp(MLX5_TX_PP, key) && strcmp(MLX5_TX_SKEW, key)) {
                /* Negative values are acceptable for some keys only. */
                rte_errno = EINVAL;
                DRV_LOG(WARNING, "%s: invalid negative value \"%s\"", key, val);
                return -rte_errno;
        }
        mod = tmp >= 0 ? tmp : -tmp;
        if (strcmp(MLX5_RXQ_CQE_COMP_EN, key) == 0) {
                if (tmp > MLX5_CQE_RESP_FORMAT_L34H_STRIDX) {
                        DRV_LOG(ERR, "invalid CQE compression "
                                     "format parameter");
                        rte_errno = EINVAL;
                        return -rte_errno;
                }
                config->cqe_comp = !!tmp;
                config->cqe_comp_fmt = tmp;
        } else if (strcmp(MLX5_RXQ_PKT_PAD_EN, key) == 0) {
                config->hw_padding = !!tmp;
        } else if (strcmp(MLX5_RX_MPRQ_EN, key) == 0) {
                config->mprq.enabled = !!tmp;
        } else if (strcmp(MLX5_RX_MPRQ_LOG_STRIDE_NUM, key) == 0) {
                config->mprq.stride_num_n = tmp;
        } else if (strcmp(MLX5_RX_MPRQ_LOG_STRIDE_SIZE, key) == 0) {
                config->mprq.stride_size_n = tmp;
        } else if (strcmp(MLX5_RX_MPRQ_MAX_MEMCPY_LEN, key) == 0) {
                config->mprq.max_memcpy_len = tmp;
        } else if (strcmp(MLX5_RXQS_MIN_MPRQ, key) == 0) {
                config->mprq.min_rxqs_num = tmp;
        } else if (strcmp(MLX5_TXQ_INLINE, key) == 0) {
                DRV_LOG(WARNING, "%s: deprecated parameter,"
                                 " converted to txq_inline_max", key);
                config->txq_inline_max = tmp;
        } else if (strcmp(MLX5_TXQ_INLINE_MAX, key) == 0) {
                config->txq_inline_max = tmp;
        } else if (strcmp(MLX5_TXQ_INLINE_MIN, key) == 0) {
                config->txq_inline_min = tmp;
        } else if (strcmp(MLX5_TXQ_INLINE_MPW, key) == 0) {
                config->txq_inline_mpw = tmp;
        } else if (strcmp(MLX5_TXQS_MIN_INLINE, key) == 0) {
                config->txqs_inline = tmp;
        } else if (strcmp(MLX5_TXQS_MAX_VEC, key) == 0) {
                DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
        } else if (strcmp(MLX5_TXQ_MPW_EN, key) == 0) {
                config->mps = !!tmp;
        } else if (strcmp(MLX5_TXQ_MPW_HDR_DSEG_EN, key) == 0) {
                DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
        } else if (strcmp(MLX5_TXQ_MAX_INLINE_LEN, key) == 0) {
                DRV_LOG(WARNING, "%s: deprecated parameter,"
                                 " converted to txq_inline_mpw", key);
                config->txq_inline_mpw = tmp;
        } else if (strcmp(MLX5_TX_VEC_EN, key) == 0) {
                DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
        } else if (strcmp(MLX5_TX_PP, key) == 0) {
                if (!mod) {
                        DRV_LOG(ERR, "Zero Tx packet pacing parameter");
                        rte_errno = EINVAL;
                        return -rte_errno;
                }
                config->tx_pp = tmp;
        } else if (strcmp(MLX5_TX_SKEW, key) == 0) {
                config->tx_skew = tmp;
        } else if (strcmp(MLX5_RX_VEC_EN, key) == 0) {
                config->rx_vec_en = !!tmp;
        } else if (strcmp(MLX5_L3_VXLAN_EN, key) == 0) {
                config->l3_vxlan_en = !!tmp;
        } else if (strcmp(MLX5_VF_NL_EN, key) == 0) {
                config->vf_nl_en = !!tmp;
        } else if (strcmp(MLX5_DV_ESW_EN, key) == 0) {
                config->dv_esw_en = !!tmp;
        } else if (strcmp(MLX5_DV_FLOW_EN, key) == 0) {
                config->dv_flow_en = !!tmp;
        } else if (strcmp(MLX5_DV_XMETA_EN, key) == 0) {
                if (tmp != MLX5_XMETA_MODE_LEGACY &&
                    tmp != MLX5_XMETA_MODE_META16 &&
                    tmp != MLX5_XMETA_MODE_META32 &&
                    tmp != MLX5_XMETA_MODE_MISS_INFO) {
                        DRV_LOG(ERR, "invalid extensive "
                                     "metadata parameter");
                        rte_errno = EINVAL;
                        return -rte_errno;
                }
                if (tmp != MLX5_XMETA_MODE_MISS_INFO)
                        config->dv_xmeta_en = tmp;
                else
                        config->dv_miss_info = 1;
        } else if (strcmp(MLX5_LACP_BY_USER, key) == 0) {
                config->lacp_by_user = !!tmp;
        } else if (strcmp(MLX5_MAX_DUMP_FILES_NUM, key) == 0) {
                config->max_dump_files_num = tmp;
        } else if (strcmp(MLX5_LRO_TIMEOUT_USEC, key) == 0) {
                config->lro.timeout = tmp;
        } else if (strcmp(RTE_DEVARGS_KEY_CLASS, key) == 0) {
                DRV_LOG(DEBUG, "class argument is %s.", val);
        } else if (strcmp(MLX5_HP_BUF_SIZE, key) == 0) {
                config->log_hp_size = tmp;
        } else if (strcmp(MLX5_RECLAIM_MEM, key) == 0) {
                if (tmp != MLX5_RCM_NONE &&
                    tmp != MLX5_RCM_LIGHT &&
                    tmp != MLX5_RCM_AGGR) {
                        DRV_LOG(ERR, "Unrecognize %s: \"%s\"", key, val);
                        rte_errno = EINVAL;
                        return -rte_errno;
                }
                config->reclaim_mode = tmp;
        } else if (strcmp(MLX5_DECAP_EN, key) == 0) {
                config->decap_en = !!tmp;
        } else if (strcmp(MLX5_ALLOW_DUPLICATE_PATTERN, key) == 0) {
                config->allow_duplicate_pattern = !!tmp;
        } else {
                DRV_LOG(WARNING, "%s: unknown parameter", key);
                rte_errno = EINVAL;
                return -rte_errno;
        }
        return 0;
}

/**
 * Parse device parameters.
 *
 * @param config
 *   Pointer to device configuration structure.
 * @param devargs
 *   Device arguments structure.
 *
 * @return
 *   0 on success, a negative errno value otherwise and rte_errno is set.
 */
int
mlx5_args(struct mlx5_dev_config *config, struct rte_devargs *devargs)
{
        const char **params = (const char *[]){
                MLX5_DRIVER_KEY,
                MLX5_RXQ_CQE_COMP_EN,
                MLX5_RXQ_PKT_PAD_EN,
                MLX5_RX_MPRQ_EN,
                MLX5_RX_MPRQ_LOG_STRIDE_NUM,
                MLX5_RX_MPRQ_LOG_STRIDE_SIZE,
                MLX5_RX_MPRQ_MAX_MEMCPY_LEN,
                MLX5_RXQS_MIN_MPRQ,
                MLX5_TXQ_INLINE,
                MLX5_TXQ_INLINE_MIN,
                MLX5_TXQ_INLINE_MAX,
                MLX5_TXQ_INLINE_MPW,
                MLX5_TXQS_MIN_INLINE,
                MLX5_TXQS_MAX_VEC,
                MLX5_TXQ_MPW_EN,
                MLX5_TXQ_MPW_HDR_DSEG_EN,
                MLX5_TXQ_MAX_INLINE_LEN,
                MLX5_TX_DB_NC,
                MLX5_TX_PP,
                MLX5_TX_SKEW,
                MLX5_TX_VEC_EN,
                MLX5_RX_VEC_EN,
                MLX5_L3_VXLAN_EN,
                MLX5_VF_NL_EN,
                MLX5_DV_ESW_EN,
                MLX5_DV_FLOW_EN,
                MLX5_DV_XMETA_EN,
                MLX5_LACP_BY_USER,
                MLX5_MR_EXT_MEMSEG_EN,
                MLX5_REPRESENTOR,
                MLX5_MAX_DUMP_FILES_NUM,
                MLX5_LRO_TIMEOUT_USEC,
                RTE_DEVARGS_KEY_CLASS,
                MLX5_HP_BUF_SIZE,
                MLX5_RECLAIM_MEM,
                MLX5_SYS_MEM_EN,
                MLX5_DECAP_EN,
                MLX5_ALLOW_DUPLICATE_PATTERN,
                MLX5_MR_MEMPOOL_REG_EN,
                NULL,
        };
        struct rte_kvargs *kvlist;
        int ret = 0;
        int i;

        if (devargs == NULL)
                return 0;
        /* Following UGLY cast is done to pass checkpatch. */
        kvlist = rte_kvargs_parse(devargs->args, params);
        if (kvlist == NULL) {
                rte_errno = EINVAL;
                return -rte_errno;
        }
        /* Process parameters. */
        for (i = 0; (params[i] != NULL); ++i) {
                if (rte_kvargs_count(kvlist, params[i])) {
                        ret = rte_kvargs_process(kvlist, params[i],
                                                 mlx5_args_check, config);
                        if (ret) {
                                rte_errno = EINVAL;
                                rte_kvargs_free(kvlist);
                                return -rte_errno;
                        }
                }
        }
        rte_kvargs_free(kvlist);
        return 0;
}

/**
 * Configures the minimal amount of data to inline into WQE
 * while sending packets.
 *
 * - the txq_inline_min has the maximal priority, if this
 *   key is specified in devargs
 * - if DevX is enabled the inline mode is queried from the
 *   device (HCA attributes and NIC vport context if needed).
 * - otherwise L2 mode (18 bytes) is assumed for ConnectX-4/4 Lx
 *   and none (0 bytes) for other NICs
 *
 * @param spawn
 *   Verbs device parameters (name, port, switch_info) to spawn.
 * @param config
 *   Device configuration parameters.
 */
void
mlx5_set_min_inline(struct mlx5_dev_spawn_data *spawn,
                    struct mlx5_dev_config *config)
{
        if (config->txq_inline_min != MLX5_ARG_UNSET) {
                /* Application defines size of inlined data explicitly. */
                if (spawn->pci_dev != NULL) {
                        switch (spawn->pci_dev->id.device_id) {
                        case PCI_DEVICE_ID_MELLANOX_CONNECTX4:
                        case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
                                if (config->txq_inline_min <
                                               (int)MLX5_INLINE_HSIZE_L2) {
                                        DRV_LOG(DEBUG,
                                                "txq_inline_mix aligned to minimal ConnectX-4 required value %d",
                                                (int)MLX5_INLINE_HSIZE_L2);
                                        config->txq_inline_min =
                                                        MLX5_INLINE_HSIZE_L2;
                                }
                                break;
                        }
                }
                goto exit;
        }
        if (config->hca_attr.eth_net_offloads) {
                /* We have DevX enabled, inline mode queried successfully. */
                switch (config->hca_attr.wqe_inline_mode) {
                case MLX5_CAP_INLINE_MODE_L2:
                        /* outer L2 header must be inlined. */
                        config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
                        goto exit;
                case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
                        /* No inline data are required by NIC. */
                        config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
                        config->hw_vlan_insert =
                                config->hca_attr.wqe_vlan_insert;
                        DRV_LOG(DEBUG, "Tx VLAN insertion is supported");
                        goto exit;
                case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
                        /* inline mode is defined by NIC vport context. */
                        if (!config->hca_attr.eth_virt)
                                break;
                        switch (config->hca_attr.vport_inline_mode) {
                        case MLX5_INLINE_MODE_NONE:
                                config->txq_inline_min =
                                        MLX5_INLINE_HSIZE_NONE;
                                goto exit;
                        case MLX5_INLINE_MODE_L2:
                                config->txq_inline_min =
                                        MLX5_INLINE_HSIZE_L2;
                                goto exit;
                        case MLX5_INLINE_MODE_IP:
                                config->txq_inline_min =
                                        MLX5_INLINE_HSIZE_L3;
                                goto exit;
                        case MLX5_INLINE_MODE_TCP_UDP:
                                config->txq_inline_min =
                                        MLX5_INLINE_HSIZE_L4;
                                goto exit;
                        case MLX5_INLINE_MODE_INNER_L2:
                                config->txq_inline_min =
                                        MLX5_INLINE_HSIZE_INNER_L2;
                                goto exit;
                        case MLX5_INLINE_MODE_INNER_IP:
                                config->txq_inline_min =
                                        MLX5_INLINE_HSIZE_INNER_L3;
                                goto exit;
                        case MLX5_INLINE_MODE_INNER_TCP_UDP:
                                config->txq_inline_min =
                                        MLX5_INLINE_HSIZE_INNER_L4;
                                goto exit;
                        }
                }
        }
        if (spawn->pci_dev == NULL) {
                config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
                goto exit;
        }
        /*
         * We get here if we are unable to deduce
         * inline data size with DevX. Try PCI ID
         * to determine old NICs.
         */
        switch (spawn->pci_dev->id.device_id) {
        case PCI_DEVICE_ID_MELLANOX_CONNECTX4:
        case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
        case PCI_DEVICE_ID_MELLANOX_CONNECTX4LX:
        case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
                config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
                config->hw_vlan_insert = 0;
                break;
        case PCI_DEVICE_ID_MELLANOX_CONNECTX5:
        case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
        case PCI_DEVICE_ID_MELLANOX_CONNECTX5EX:
        case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
                /*
                 * These NICs support VLAN insertion from WQE and
                 * report the wqe_vlan_insert flag. But there is the bug
                 * and PFC control may be broken, so disable feature.
                 */
                config->hw_vlan_insert = 0;
                config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
                break;
        default:
                config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
                break;
        }
exit:
        DRV_LOG(DEBUG, "min tx inline configured: %d", config->txq_inline_min);
}

/**
 * Configures the metadata mask fields in the shared context.
 *
 * @param [in] dev
 *   Pointer to Ethernet device.
 */
void
mlx5_set_metadata_mask(struct rte_eth_dev *dev)
{
        struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_dev_ctx_shared *sh = priv->sh;
        uint32_t meta, mark, reg_c0;

        reg_c0 = ~priv->vport_meta_mask;
        switch (priv->config.dv_xmeta_en) {
        case MLX5_XMETA_MODE_LEGACY:
                meta = UINT32_MAX;
                mark = MLX5_FLOW_MARK_MASK;
                break;
        case MLX5_XMETA_MODE_META16:
                meta = reg_c0 >> rte_bsf32(reg_c0);
                mark = MLX5_FLOW_MARK_MASK;
                break;
        case MLX5_XMETA_MODE_META32:
                meta = UINT32_MAX;
                mark = (reg_c0 >> rte_bsf32(reg_c0)) & MLX5_FLOW_MARK_MASK;
                break;
        default:
                meta = 0;
                mark = 0;
                MLX5_ASSERT(false);
                break;
        }
        if (sh->dv_mark_mask && sh->dv_mark_mask != mark)
                DRV_LOG(WARNING, "metadata MARK mask mismatche %08X:%08X",
                                 sh->dv_mark_mask, mark);
        else
                sh->dv_mark_mask = mark;
        if (sh->dv_meta_mask && sh->dv_meta_mask != meta)
                DRV_LOG(WARNING, "metadata META mask mismatche %08X:%08X",
                                 sh->dv_meta_mask, meta);
        else
                sh->dv_meta_mask = meta;
        if (sh->dv_regc0_mask && sh->dv_regc0_mask != reg_c0)
                DRV_LOG(WARNING, "metadata reg_c0 mask mismatche %08X:%08X",
                                 sh->dv_meta_mask, reg_c0);
        else
                sh->dv_regc0_mask = reg_c0;
        DRV_LOG(DEBUG, "metadata mode %u", priv->config.dv_xmeta_en);
        DRV_LOG(DEBUG, "metadata MARK mask %08X", sh->dv_mark_mask);
        DRV_LOG(DEBUG, "metadata META mask %08X", sh->dv_meta_mask);
        DRV_LOG(DEBUG, "metadata reg_c0 mask %08X", sh->dv_regc0_mask);
}

int
rte_pmd_mlx5_get_dyn_flag_names(char *names[], unsigned int n)
{
        static const char *const dynf_names[] = {
                RTE_PMD_MLX5_FINE_GRANULARITY_INLINE,
                RTE_MBUF_DYNFLAG_METADATA_NAME,
                RTE_MBUF_DYNFLAG_TX_TIMESTAMP_NAME
        };
        unsigned int i;

        if (n < RTE_DIM(dynf_names))
                return -ENOMEM;
        for (i = 0; i < RTE_DIM(dynf_names); i++) {
                if (names[i] == NULL)
                        return -EINVAL;
                strcpy(names[i], dynf_names[i]);
        }
        return RTE_DIM(dynf_names);
}

/**
 * Comparison callback to sort device data.
 *
 * This is meant to be used with qsort().
 *
 * @param a[in]
 *   Pointer to pointer to first data object.
 * @param b[in]
 *   Pointer to pointer to second data object.
 *
 * @return
 *   0 if both objects are equal, less than 0 if the first argument is less
 *   than the second, greater than 0 otherwise.
 */
int
mlx5_dev_check_sibling_config(struct mlx5_priv *priv,
                              struct mlx5_dev_config *config,
                              struct rte_device *dpdk_dev)
{
        struct mlx5_dev_ctx_shared *sh = priv->sh;
        struct mlx5_dev_config *sh_conf = NULL;
        uint16_t port_id;

        MLX5_ASSERT(sh);
        /* Nothing to compare for the single/first device. */
        if (sh->refcnt == 1)
                return 0;
        /* Find the device with shared context. */
        MLX5_ETH_FOREACH_DEV(port_id, dpdk_dev) {
                struct mlx5_priv *opriv =
                        rte_eth_devices[port_id].data->dev_private;

                if (opriv && opriv != priv && opriv->sh == sh) {
                        sh_conf = &opriv->config;
                        break;
                }
        }
        if (!sh_conf)
                return 0;
        if (sh_conf->dv_flow_en ^ config->dv_flow_en) {
                DRV_LOG(ERR, "\"dv_flow_en\" configuration mismatch"
                             " for shared %s context", sh->ibdev_name);
                rte_errno = EINVAL;
                return rte_errno;
        }
        if (sh_conf->dv_xmeta_en ^ config->dv_xmeta_en) {
                DRV_LOG(ERR, "\"dv_xmeta_en\" configuration mismatch"
                             " for shared %s context", sh->ibdev_name);
                rte_errno = EINVAL;
                return rte_errno;
        }
        return 0;
}

/**
 * Look for the ethernet device belonging to mlx5 driver.
 *
 * @param[in] port_id
 *   port_id to start looking for device.
 * @param[in] odev
 *   Pointer to the hint device. When device is being probed
 *   the its siblings (master and preceding representors might
 *   not have assigned driver yet (because the mlx5_os_pci_probe()
 *   is not completed yet, for this case match on hint
 *   device may be used to detect sibling device.
 *
 * @return
 *   port_id of found device, RTE_MAX_ETHPORT if not found.
 */
uint16_t
mlx5_eth_find_next(uint16_t port_id, struct rte_device *odev)
{
        while (port_id < RTE_MAX_ETHPORTS) {
                struct rte_eth_dev *dev = &rte_eth_devices[port_id];

                if (dev->state != RTE_ETH_DEV_UNUSED &&
                    dev->device &&
                    (dev->device == odev ||
                     (dev->device->driver &&
                     dev->device->driver->name &&
                     ((strcmp(dev->device->driver->name,
                              MLX5_PCI_DRIVER_NAME) == 0) ||
                      (strcmp(dev->device->driver->name,
                              MLX5_AUXILIARY_DRIVER_NAME) == 0)))))
                        break;
                port_id++;
        }
        if (port_id >= RTE_MAX_ETHPORTS)
                return RTE_MAX_ETHPORTS;
        return port_id;
}

/**
 * Callback to remove a device.
 *
 * This function removes all Ethernet devices belong to a given device.
 *
 * @param[in] cdev
 *   Pointer to the generic device.
 *
 * @return
 *   0 on success, the function cannot fail.
 */
int
mlx5_net_remove(struct mlx5_common_device *cdev)
{
        uint16_t port_id;
        int ret = 0;

        RTE_ETH_FOREACH_DEV_OF(port_id, cdev->dev) {
                /*
                 * mlx5_dev_close() is not registered to secondary process,
                 * call the close function explicitly for secondary process.
                 */
                if (rte_eal_process_type() == RTE_PROC_SECONDARY)
                        ret |= mlx5_dev_close(&rte_eth_devices[port_id]);
                else
                        ret |= rte_eth_dev_close(port_id);
        }
        return ret == 0 ? 0 : -EIO;
}

static const struct rte_pci_id mlx5_pci_id_map[] = {
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX4)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX4VF)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX4LX)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX5)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX5VF)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX5EX)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX5BF)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                                PCI_DEVICE_ID_MELLANOX_CONNECTX6)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                                PCI_DEVICE_ID_MELLANOX_CONNECTX6VF)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                                PCI_DEVICE_ID_MELLANOX_CONNECTX6DX)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                                PCI_DEVICE_ID_MELLANOX_CONNECTXVF)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                                PCI_DEVICE_ID_MELLANOX_CONNECTX6DXBF)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                                PCI_DEVICE_ID_MELLANOX_CONNECTX6LX)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                                PCI_DEVICE_ID_MELLANOX_CONNECTX7)
        },
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                                PCI_DEVICE_ID_MELLANOX_CONNECTX7BF)
        },
        {
                .vendor_id = 0
        }
};

static struct mlx5_class_driver mlx5_net_driver = {
        .drv_class = MLX5_CLASS_ETH,
        .name = RTE_STR(MLX5_ETH_DRIVER_NAME),
        .id_table = mlx5_pci_id_map,
        .probe = mlx5_os_net_probe,
        .remove = mlx5_net_remove,
        .dma_map = mlx5_net_dma_map,
        .dma_unmap = mlx5_net_dma_unmap,
        .probe_again = 1,
        .intr_lsc = 1,
        .intr_rmv = 1,
};

/* Initialize driver log type. */
RTE_LOG_REGISTER_DEFAULT(mlx5_logtype, NOTICE)

/**
 * Driver initialization routine.
 */
RTE_INIT(rte_mlx5_pmd_init)
{
        pthread_mutex_init(&mlx5_dev_ctx_list_mutex, NULL);
        mlx5_common_init();
        /* Build the static tables for Verbs conversion. */
        mlx5_set_ptype_table();
        mlx5_set_cksum_table();
        mlx5_set_swp_types_table();
        if (mlx5_glue)
                mlx5_class_driver_register(&mlx5_net_driver);
}

RTE_PMD_EXPORT_NAME(MLX5_ETH_DRIVER_NAME, __COUNTER__);
RTE_PMD_REGISTER_PCI_TABLE(MLX5_ETH_DRIVER_NAME, mlx5_pci_id_map);
RTE_PMD_REGISTER_KMOD_DEP(MLX5_ETH_DRIVER_NAME, "* ib_uverbs & mlx5_core & mlx5_ib");