From: Michael Baum <michae...@oss.nvidia.com>

Add global shared MR cache as a field of common device structure.
Move MR management to use this global cache for all drivers.

Signed-off-by: Michael Baum <michae...@oss.nvidia.com>
Acked-by: Matan Azrad <ma...@nvidia.com>
---
 drivers/common/mlx5/mlx5_common.c        | 54 ++++++++++++++++-
 drivers/common/mlx5/mlx5_common.h        |  4 +-
 drivers/common/mlx5/mlx5_common_mr.c     |  7 +--
 drivers/common/mlx5/mlx5_common_mr.h     |  4 --
 drivers/common/mlx5/version.map          |  4 --
 drivers/compress/mlx5/mlx5_compress.c    | 57 +-----------------
 drivers/crypto/mlx5/mlx5_crypto.c        | 56 +----------------
 drivers/crypto/mlx5/mlx5_crypto.h        |  1 -
 drivers/net/mlx5/linux/mlx5_mp_os.c      |  2 +-
 drivers/net/mlx5/linux/mlx5_os.c         |  5 --
 drivers/net/mlx5/mlx5.c                  | 36 ++---------
 drivers/net/mlx5/mlx5.h                  |  3 -
 drivers/net/mlx5/mlx5_flow_aso.c         | 28 ++++-----
 drivers/net/mlx5/mlx5_mr.c               | 76 +++++++-----------------
 drivers/net/mlx5/mlx5_mr.h               | 26 --------
 drivers/net/mlx5/mlx5_rx.c               |  1 -
 drivers/net/mlx5/mlx5_rx.h               |  6 +-
 drivers/net/mlx5/mlx5_rxq.c              |  4 +-
 drivers/net/mlx5/mlx5_rxtx.c             |  1 -
 drivers/net/mlx5/mlx5_rxtx.h             |  1 -
 drivers/net/mlx5/mlx5_rxtx_vec.h         |  1 -
 drivers/net/mlx5/mlx5_trigger.c          |  3 +-
 drivers/net/mlx5/mlx5_tx.c               |  1 -
 drivers/net/mlx5/mlx5_tx.h               |  1 -
 drivers/net/mlx5/mlx5_txq.c              |  2 +-
 drivers/net/mlx5/windows/mlx5_os.c       | 14 -----
 drivers/regex/mlx5/mlx5_regex.c          | 63 --------------------
 drivers/regex/mlx5/mlx5_regex.h          |  3 -
 drivers/regex/mlx5/mlx5_regex_control.c  |  2 +-
 drivers/regex/mlx5/mlx5_regex_fastpath.c |  2 +-
 30 files changed, 110 insertions(+), 358 deletions(-)
 delete mode 100644 drivers/net/mlx5/mlx5_mr.h

diff --git a/drivers/common/mlx5/mlx5_common.c 
b/drivers/common/mlx5/mlx5_common.c
index 17a54acf1e..d6acf87493 100644
--- a/drivers/common/mlx5/mlx5_common.c
+++ b/drivers/common/mlx5/mlx5_common.c
@@ -308,6 +308,41 @@ mlx5_dev_to_pci_str(const struct rte_device *dev, char 
*addr, size_t size)
 #endif
 }
 
+/**
+ * Callback for memory event.
+ *
+ * @param event_type
+ *   Memory event type.
+ * @param addr
+ *   Address of memory.
+ * @param len
+ *   Size of memory.
+ */
+static void
+mlx5_mr_mem_event_cb(enum rte_mem_event event_type, const void *addr,
+                    size_t len, void *arg __rte_unused)
+{
+       struct mlx5_common_device *cdev;
+
+       /* Must be called from the primary process. */
+       MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
+       switch (event_type) {
+       case RTE_MEM_EVENT_FREE:
+               pthread_mutex_lock(&devices_list_lock);
+               /* Iterate all the existing mlx5 devices. */
+               TAILQ_FOREACH(cdev, &devices_list, next)
+                       mlx5_free_mr_by_addr(&cdev->mr_scache,
+                                            mlx5_os_get_ctx_device_name
+                                                                   (cdev->ctx),
+                                            addr, len);
+               pthread_mutex_unlock(&devices_list_lock);
+               break;
+       case RTE_MEM_EVENT_ALLOC:
+       default:
+               break;
+       }
+}
+
 /**
  * Uninitialize all HW global of device context.
  *
@@ -376,8 +411,13 @@ mlx5_common_dev_release(struct mlx5_common_device *cdev)
        pthread_mutex_lock(&devices_list_lock);
        TAILQ_REMOVE(&devices_list, cdev, next);
        pthread_mutex_unlock(&devices_list_lock);
-       if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+       if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+               if (TAILQ_EMPTY(&devices_list))
+                       rte_mem_event_callback_unregister("MLX5_MEM_EVENT_CB",
+                                                         NULL);
+               mlx5_mr_release_cache(&cdev->mr_scache);
                mlx5_dev_hw_global_release(cdev);
+       }
        rte_free(cdev);
 }
 
@@ -412,6 +452,18 @@ mlx5_common_dev_create(struct rte_device *eal_dev, 
uint32_t classes)
                rte_free(cdev);
                return NULL;
        }
+       /* Initialize global MR cache resources and update its functions. */
+       ret = mlx5_mr_create_cache(&cdev->mr_scache, eal_dev->numa_node);
+       if (ret) {
+               DRV_LOG(ERR, "Failed to initialize global MR share cache.");
+               mlx5_dev_hw_global_release(cdev);
+               rte_free(cdev);
+               return NULL;
+       }
+       /* Register callback function for global shared MR cache management. */
+       if (TAILQ_EMPTY(&devices_list))
+               rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
+                                               mlx5_mr_mem_event_cb, NULL);
 exit:
        pthread_mutex_lock(&devices_list_lock);
        TAILQ_INSERT_HEAD(&devices_list, cdev, next);
diff --git a/drivers/common/mlx5/mlx5_common.h 
b/drivers/common/mlx5/mlx5_common.h
index 8df4f32aa2..1a6b8c0f52 100644
--- a/drivers/common/mlx5/mlx5_common.h
+++ b/drivers/common/mlx5/mlx5_common.h
@@ -350,6 +350,7 @@ struct mlx5_common_device {
        void *ctx; /* Verbs/DV/DevX context. */
        void *pd; /* Protection Domain. */
        uint32_t pdn; /* Protection Domain Number. */
+       struct mlx5_mr_share_cache mr_scache; /* Global shared MR cache. */
        struct mlx5_common_dev_config config; /* Device configuration. */
 };
 
@@ -453,8 +454,7 @@ mlx5_dev_is_pci(const struct rte_device *dev);
 __rte_internal
 uint32_t
 mlx5_mr_mb2mr(struct mlx5_common_device *cdev, struct mlx5_mp_id *mp_id,
-             struct mlx5_mr_ctrl *mr_ctrl, struct rte_mbuf *mbuf,
-             struct mlx5_mr_share_cache *share_cache);
+             struct mlx5_mr_ctrl *mr_ctrl, struct rte_mbuf *mbuf);
 
 /* mlx5_common_os.c */
 
diff --git a/drivers/common/mlx5/mlx5_common_mr.c 
b/drivers/common/mlx5/mlx5_common_mr.c
index 4de1c25f2a..d63e973b60 100644
--- a/drivers/common/mlx5/mlx5_common_mr.c
+++ b/drivers/common/mlx5/mlx5_common_mr.c
@@ -1848,16 +1848,13 @@ mlx5_mr_mempool2mr_bh(struct mlx5_mr_share_cache 
*share_cache,
  *   Pointer to per-queue MR control structure.
  * @param mbuf
  *   Pointer to mbuf.
- * @param share_cache
- *   Pointer to a global shared MR cache.
  *
  * @return
  *   Searched LKey on success, UINT32_MAX on no match.
  */
 uint32_t
 mlx5_mr_mb2mr(struct mlx5_common_device *cdev, struct mlx5_mp_id *mp_id,
-             struct mlx5_mr_ctrl *mr_ctrl, struct rte_mbuf *mbuf,
-             struct mlx5_mr_share_cache *share_cache)
+             struct mlx5_mr_ctrl *mr_ctrl, struct rte_mbuf *mbuf)
 {
        uint32_t lkey;
        uintptr_t addr = (uintptr_t)mbuf->buf_addr;
@@ -1871,6 +1868,6 @@ mlx5_mr_mb2mr(struct mlx5_common_device *cdev, struct 
mlx5_mp_id *mp_id,
        if (likely(lkey != UINT32_MAX))
                return lkey;
        /* Take slower bottom-half on miss. */
-       return mlx5_mr_addr2mr_bh(cdev->pd, mp_id, share_cache, mr_ctrl,
+       return mlx5_mr_addr2mr_bh(cdev->pd, mp_id, &cdev->mr_scache, mr_ctrl,
                                  addr, cdev->config.mr_ext_memseg_en);
 }
diff --git a/drivers/common/mlx5/mlx5_common_mr.h 
b/drivers/common/mlx5/mlx5_common_mr.h
index 36689dfb54..0bc3519fd9 100644
--- a/drivers/common/mlx5/mlx5_common_mr.h
+++ b/drivers/common/mlx5/mlx5_common_mr.h
@@ -140,9 +140,7 @@ __rte_internal
 uint32_t mlx5_mr_mempool2mr_bh(struct mlx5_mr_share_cache *share_cache,
                               struct mlx5_mr_ctrl *mr_ctrl,
                               struct rte_mempool *mp, uintptr_t addr);
-__rte_internal
 void mlx5_mr_release_cache(struct mlx5_mr_share_cache *mr_cache);
-__rte_internal
 int mlx5_mr_create_cache(struct mlx5_mr_share_cache *share_cache, int socket);
 __rte_internal
 void mlx5_mr_dump_cache(struct mlx5_mr_share_cache *share_cache __rte_unused);
@@ -150,7 +148,6 @@ __rte_internal
 void mlx5_mr_rebuild_cache(struct mlx5_mr_share_cache *share_cache);
 __rte_internal
 void mlx5_mr_flush_local_cache(struct mlx5_mr_ctrl *mr_ctrl);
-__rte_internal
 void mlx5_free_mr_by_addr(struct mlx5_mr_share_cache *share_cache,
                          const char *ibdev_name, const void *addr, size_t len);
 __rte_internal
@@ -183,7 +180,6 @@ __rte_internal
 void
 mlx5_common_verbs_dereg_mr(struct mlx5_pmd_mr *pmd_mr);
 
-__rte_internal
 void
 mlx5_os_set_reg_mr_cb(mlx5_reg_mr_t *reg_mr_cb, mlx5_dereg_mr_t *dereg_mr_cb);
 
diff --git a/drivers/common/mlx5/version.map b/drivers/common/mlx5/version.map
index b83faa690c..5d9d247dc8 100644
--- a/drivers/common/mlx5/version.map
+++ b/drivers/common/mlx5/version.map
@@ -106,7 +106,6 @@ INTERNAL {
        mlx5_mr_addr2mr_bh;
        mlx5_mr_btree_dump;
        mlx5_mr_btree_free;
-       mlx5_mr_create_cache;
        mlx5_mr_create_primary;
     mlx5_mr_ctrl_init;
        mlx5_mr_dump_cache;
@@ -116,9 +115,7 @@ INTERNAL {
        mlx5_mr_lookup_cache;
        mlx5_mr_lookup_list;
        mlx5_mr_mb2mr;
-       mlx5_free_mr_by_addr;
        mlx5_mr_rebuild_cache;
-       mlx5_mr_release_cache;
 
        mlx5_nl_allmulti; # WINDOWS_NO_EXPORT
        mlx5_nl_ifindex; # WINDOWS_NO_EXPORT
@@ -136,7 +133,6 @@ INTERNAL {
 
        mlx5_os_umem_dereg;
        mlx5_os_umem_reg;
-    mlx5_os_set_reg_mr_cb;
 
        mlx5_realloc;
 
diff --git a/drivers/compress/mlx5/mlx5_compress.c 
b/drivers/compress/mlx5/mlx5_compress.c
index 71c8937c47..83efc2cbc4 100644
--- a/drivers/compress/mlx5/mlx5_compress.c
+++ b/drivers/compress/mlx5/mlx5_compress.c
@@ -43,7 +43,6 @@ struct mlx5_compress_priv {
        struct rte_compressdev_config dev_config;
        LIST_HEAD(xform_list, mlx5_compress_xform) xform_list;
        rte_spinlock_t xform_sl;
-       struct mlx5_mr_share_cache mr_scache; /* Global shared MR cache. */
        volatile uint64_t *uar_addr;
 #ifndef RTE_ARCH_64
        rte_spinlock_t uar32_sl;
@@ -206,7 +205,7 @@ mlx5_compress_qp_setup(struct rte_compressdev *dev, 
uint16_t qp_id,
                return -rte_errno;
        }
        dev->data->queue_pairs[qp_id] = qp;
-       if (mlx5_mr_ctrl_init(&qp->mr_ctrl, &priv->mr_scache.dev_gen,
+       if (mlx5_mr_ctrl_init(&qp->mr_ctrl, &priv->cdev->mr_scache.dev_gen,
                              priv->dev_config.socket_id)) {
                DRV_LOG(ERR, "Cannot allocate MR Btree for qp %u.",
                        (uint32_t)qp_id);
@@ -440,8 +439,7 @@ mlx5_compress_dseg_set(struct mlx5_compress_qp *qp,
        uintptr_t addr = rte_pktmbuf_mtod_offset(mbuf, uintptr_t, offset);
 
        dseg->bcount = rte_cpu_to_be_32(len);
-       dseg->lkey = mlx5_mr_mb2mr(qp->priv->cdev, 0, &qp->mr_ctrl, mbuf,
-                                  &qp->priv->mr_scache);
+       dseg->lkey = mlx5_mr_mb2mr(qp->priv->cdev, 0, &qp->mr_ctrl, mbuf);
        dseg->pbuf = rte_cpu_to_be_64(addr);
        return dseg->lkey;
 }
@@ -675,41 +673,6 @@ mlx5_compress_hw_global_prepare(struct mlx5_compress_priv 
*priv)
        return 0;
 }
 
-/**
- * Callback for memory event.
- *
- * @param event_type
- *   Memory event type.
- * @param addr
- *   Address of memory.
- * @param len
- *   Size of memory.
- */
-static void
-mlx5_compress_mr_mem_event_cb(enum rte_mem_event event_type, const void *addr,
-                             size_t len, void *arg __rte_unused)
-{
-       struct mlx5_compress_priv *priv;
-
-       /* Must be called from the primary process. */
-       MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
-       switch (event_type) {
-       case RTE_MEM_EVENT_FREE:
-               pthread_mutex_lock(&priv_list_lock);
-               /* Iterate all the existing mlx5 devices. */
-               TAILQ_FOREACH(priv, &mlx5_compress_priv_list, next)
-                       mlx5_free_mr_by_addr(&priv->mr_scache,
-                                            mlx5_os_get_ctx_device_name
-                                                             (priv->cdev->ctx),
-                                            addr, len);
-               pthread_mutex_unlock(&priv_list_lock);
-               break;
-       case RTE_MEM_EVENT_ALLOC:
-       default:
-               break;
-       }
-}
-
 static int
 mlx5_compress_dev_probe(struct mlx5_common_device *cdev)
 {
@@ -754,18 +717,6 @@ mlx5_compress_dev_probe(struct mlx5_common_device *cdev)
                rte_compressdev_pmd_destroy(priv->compressdev);
                return -1;
        }
-       if (mlx5_mr_create_cache(&priv->mr_scache, rte_socket_id()) != 0) {
-               DRV_LOG(ERR, "Failed to allocate shared cache MR memory.");
-               mlx5_compress_hw_global_release(priv);
-               rte_compressdev_pmd_destroy(priv->compressdev);
-               rte_errno = ENOMEM;
-               return -rte_errno;
-       }
-       /* Register callback function for global shared MR cache management. */
-       if (TAILQ_EMPTY(&mlx5_compress_priv_list))
-               rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
-                                               mlx5_compress_mr_mem_event_cb,
-                                               NULL);
        pthread_mutex_lock(&priv_list_lock);
        TAILQ_INSERT_TAIL(&mlx5_compress_priv_list, priv, next);
        pthread_mutex_unlock(&priv_list_lock);
@@ -785,10 +736,6 @@ mlx5_compress_dev_remove(struct mlx5_common_device *cdev)
                TAILQ_REMOVE(&mlx5_compress_priv_list, priv, next);
        pthread_mutex_unlock(&priv_list_lock);
        if (priv) {
-               if (TAILQ_EMPTY(&mlx5_compress_priv_list))
-                       rte_mem_event_callback_unregister("MLX5_MEM_EVENT_CB",
-                                                         NULL);
-               mlx5_mr_release_cache(&priv->mr_scache);
                mlx5_compress_hw_global_release(priv);
                rte_compressdev_pmd_destroy(priv->compressdev);
        }
diff --git a/drivers/crypto/mlx5/mlx5_crypto.c 
b/drivers/crypto/mlx5/mlx5_crypto.c
index 0cd72822e8..ad63cace10 100644
--- a/drivers/crypto/mlx5/mlx5_crypto.c
+++ b/drivers/crypto/mlx5/mlx5_crypto.c
@@ -349,8 +349,7 @@ mlx5_crypto_klm_set(struct mlx5_crypto_priv *priv, struct 
mlx5_crypto_qp *qp,
        *remain -= data_len;
        klm->bcount = rte_cpu_to_be_32(data_len);
        klm->pbuf = rte_cpu_to_be_64(addr);
-       klm->lkey = mlx5_mr_mb2mr(priv->cdev, 0, &qp->mr_ctrl, mbuf,
-                                 &priv->mr_scache);
+       klm->lkey = mlx5_mr_mb2mr(priv->cdev, 0, &qp->mr_ctrl, mbuf);
        return klm->lkey;
 
 }
@@ -678,7 +677,7 @@ mlx5_crypto_queue_pair_setup(struct rte_cryptodev *dev, 
uint16_t qp_id,
                DRV_LOG(ERR, "Failed to register QP umem.");
                goto error;
        }
-       if (mlx5_mr_ctrl_init(&qp->mr_ctrl, &priv->mr_scache.dev_gen,
+       if (mlx5_mr_ctrl_init(&qp->mr_ctrl, &priv->cdev->mr_scache.dev_gen,
                              priv->dev_config.socket_id) != 0) {
                DRV_LOG(ERR, "Cannot allocate MR Btree for qp %u.",
                        (uint32_t)qp_id);
@@ -894,41 +893,6 @@ mlx5_crypto_parse_devargs(struct rte_devargs *devargs,
        return 0;
 }
 
-/**
- * Callback for memory event.
- *
- * @param event_type
- *   Memory event type.
- * @param addr
- *   Address of memory.
- * @param len
- *   Size of memory.
- */
-static void
-mlx5_crypto_mr_mem_event_cb(enum rte_mem_event event_type, const void *addr,
-                           size_t len, void *arg __rte_unused)
-{
-       struct mlx5_crypto_priv *priv;
-
-       /* Must be called from the primary process. */
-       MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
-       switch (event_type) {
-       case RTE_MEM_EVENT_FREE:
-               pthread_mutex_lock(&priv_list_lock);
-               /* Iterate all the existing mlx5 devices. */
-               TAILQ_FOREACH(priv, &mlx5_crypto_priv_list, next)
-                       mlx5_free_mr_by_addr(&priv->mr_scache,
-                                            mlx5_os_get_ctx_device_name
-                                                             (priv->cdev->ctx),
-                                            addr, len);
-               pthread_mutex_unlock(&priv_list_lock);
-               break;
-       case RTE_MEM_EVENT_ALLOC:
-       default:
-               break;
-       }
-}
-
 static int
 mlx5_crypto_dev_probe(struct mlx5_common_device *cdev)
 {
@@ -990,13 +954,6 @@ mlx5_crypto_dev_probe(struct mlx5_common_device *cdev)
                rte_cryptodev_pmd_destroy(priv->crypto_dev);
                return -1;
        }
-       if (mlx5_mr_create_cache(&priv->mr_scache, rte_socket_id()) != 0) {
-               DRV_LOG(ERR, "Failed to allocate shared cache MR memory.");
-               mlx5_crypto_hw_global_release(priv);
-               rte_cryptodev_pmd_destroy(priv->crypto_dev);
-               rte_errno = ENOMEM;
-               return -rte_errno;
-       }
        priv->keytag = rte_cpu_to_be_64(devarg_prms.keytag);
        priv->max_segs_num = devarg_prms.max_segs_num;
        priv->umr_wqe_size = sizeof(struct mlx5_wqe_umr_bsf_seg) +
@@ -1010,11 +967,6 @@ mlx5_crypto_dev_probe(struct mlx5_common_device *cdev)
        priv->wqe_set_size = priv->umr_wqe_size + rdmw_wqe_size;
        priv->umr_wqe_stride = priv->umr_wqe_size / MLX5_SEND_WQE_BB;
        priv->max_rdmar_ds = rdmw_wqe_size / sizeof(struct mlx5_wqe_dseg);
-       /* Register callback function for global shared MR cache management. */
-       if (TAILQ_EMPTY(&mlx5_crypto_priv_list))
-               rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
-                                               mlx5_crypto_mr_mem_event_cb,
-                                               NULL);
        pthread_mutex_lock(&priv_list_lock);
        TAILQ_INSERT_TAIL(&mlx5_crypto_priv_list, priv, next);
        pthread_mutex_unlock(&priv_list_lock);
@@ -1034,10 +986,6 @@ mlx5_crypto_dev_remove(struct mlx5_common_device *cdev)
                TAILQ_REMOVE(&mlx5_crypto_priv_list, priv, next);
        pthread_mutex_unlock(&priv_list_lock);
        if (priv) {
-               if (TAILQ_EMPTY(&mlx5_crypto_priv_list))
-                       rte_mem_event_callback_unregister("MLX5_MEM_EVENT_CB",
-                                                         NULL);
-               mlx5_mr_release_cache(&priv->mr_scache);
                mlx5_crypto_hw_global_release(priv);
                rte_cryptodev_pmd_destroy(priv->crypto_dev);
                claim_zero(mlx5_devx_cmd_destroy(priv->login_obj));
diff --git a/drivers/crypto/mlx5/mlx5_crypto.h 
b/drivers/crypto/mlx5/mlx5_crypto.h
index 88bcaeabf2..09acc85a56 100644
--- a/drivers/crypto/mlx5/mlx5_crypto.h
+++ b/drivers/crypto/mlx5/mlx5_crypto.h
@@ -26,7 +26,6 @@ struct mlx5_crypto_priv {
        uint32_t max_segs_num; /* Maximum supported data segs. */
        struct mlx5_hlist *dek_hlist; /* Dek hash list. */
        struct rte_cryptodev_config dev_config;
-       struct mlx5_mr_share_cache mr_scache; /* Global shared MR cache. */
        struct mlx5_devx_obj *login_obj;
        uint64_t keytag;
        uint16_t wqe_set_size;
diff --git a/drivers/net/mlx5/linux/mlx5_mp_os.c 
b/drivers/net/mlx5/linux/mlx5_mp_os.c
index 286a7caf36..c3b6495d9e 100644
--- a/drivers/net/mlx5/linux/mlx5_mp_os.c
+++ b/drivers/net/mlx5/linux/mlx5_mp_os.c
@@ -91,7 +91,7 @@ mlx5_mp_os_primary_handle(const struct rte_mp_msg *mp_msg, 
const void *peer)
        case MLX5_MP_REQ_CREATE_MR:
                mp_init_msg(&priv->mp_id, &mp_res, param->type);
                lkey = mlx5_mr_create_primary(cdev->pd,
-                                             &priv->sh->share_cache,
+                                             &priv->sh->cdev->mr_scache,
                                              &entry, param->args.addr,
                                              cdev->config.mr_ext_memseg_en);
                if (lkey == UINT32_MAX)
diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index 9e445f2f9b..61c4870d8c 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -44,7 +44,6 @@
 #include "mlx5_rx.h"
 #include "mlx5_tx.h"
 #include "mlx5_autoconf.h"
-#include "mlx5_mr.h"
 #include "mlx5_flow.h"
 #include "rte_pmd_mlx5.h"
 #include "mlx5_verbs.h"
@@ -623,10 +622,6 @@ mlx5_init_once(void)
        case RTE_PROC_PRIMARY:
                if (sd->init_done)
                        break;
-               LIST_INIT(&sd->mem_event_cb_list);
-               rte_rwlock_init(&sd->mem_event_rwlock);
-               rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
-                                               mlx5_mr_mem_event_cb, NULL);
                ret = mlx5_mp_init_primary(MLX5_MP_NAME,
                                           mlx5_mp_os_primary_handle);
                if (ret)
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index a6c196b368..91aa5c0c75 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -36,7 +36,6 @@
 #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"
@@ -1112,7 +1111,7 @@ mlx5_dev_ctx_shared_mempool_unregister(struct 
mlx5_dev_ctx_shared *sh,
        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)
+       if (mlx5_mr_mempool_unregister(&sh->cdev->mr_scache, 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));
 }
@@ -1134,7 +1133,7 @@ mlx5_dev_ctx_shared_mempool_register_cb(struct 
rte_mempool *mp, void *arg)
        int ret;
 
        mlx5_mp_id_init(&mp_id, 0);
-       ret = mlx5_mr_mempool_register(&sh->share_cache, sh->cdev->pd, mp,
+       ret = mlx5_mr_mempool_register(&sh->cdev->mr_scache, 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",
@@ -1177,8 +1176,8 @@ mlx5_dev_ctx_shared_mempool_event_cb(enum 
rte_mempool_event event,
        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)
+               if (mlx5_mr_mempool_register(&sh->cdev->mr_scache, 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));
@@ -1342,20 +1341,6 @@ mlx5_alloc_shared_dev_ctx(const struct 
mlx5_dev_spawn_data *spawn,
        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);
        sh->cnt_id_tbl = mlx5_l3t_create(MLX5_L3T_TYPE_DWORD);
        if (!sh->cnt_id_tbl) {
@@ -1370,11 +1355,6 @@ mlx5_alloc_shared_dev_ctx(const struct 
mlx5_dev_spawn_data *spawn,
        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);
@@ -1387,8 +1367,6 @@ mlx5_alloc_shared_dev_ctx(const struct 
mlx5_dev_spawn_data *spawn,
        MLX5_ASSERT(sh);
        if (sh->cnt_id_tbl)
                mlx5_l3t_destroy(sh->cnt_id_tbl);
-       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)
@@ -1444,12 +1422,6 @@ mlx5_free_shared_dev_ctx(struct mlx5_dev_ctx_shared *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. */
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 5c25b94f36..4f823baa6d 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -1142,9 +1142,6 @@ struct mlx5_dev_ctx_shared {
        char ibdev_path[MLX5_FS_PATH_MAX]; /* SYSFS dev path for secondary */
        struct mlx5_dev_attr device_attr; /* Device properties. */
        int numa_node; /* Numa node of backing physical device. */
-       LIST_ENTRY(mlx5_dev_ctx_shared) mem_event_cb;
-       /**< Called by memory event callback. */
-       struct mlx5_mr_share_cache share_cache;
        /* Packet pacing related structure. */
        struct mlx5_dev_txpp txpp;
        /* Shared DV/DR flow data section. */
diff --git a/drivers/net/mlx5/mlx5_flow_aso.c b/drivers/net/mlx5/mlx5_flow_aso.c
index 8f3d2ffc2c..1fc1000b01 100644
--- a/drivers/net/mlx5/mlx5_flow_aso.c
+++ b/drivers/net/mlx5/mlx5_flow_aso.c
@@ -60,17 +60,17 @@ mlx5_aso_cq_create(void *ctx, struct mlx5_aso_cq *cq, 
uint16_t log_desc_n,
 /**
  * Free MR resources.
  *
- * @param[in] sh
- *   Pointer to shared device context.
+ * @param[in] cdev
+ *   Pointer to the mlx5 common device.
  * @param[in] mr
  *   MR to free.
  */
 static void
-mlx5_aso_dereg_mr(struct mlx5_dev_ctx_shared *sh, struct mlx5_pmd_mr *mr)
+mlx5_aso_dereg_mr(struct mlx5_common_device *cdev, struct mlx5_pmd_mr *mr)
 {
        void *addr = mr->addr;
 
-       sh->share_cache.dereg_mr_cb(mr);
+       cdev->mr_scache.dereg_mr_cb(mr);
        mlx5_free(addr);
        memset(mr, 0, sizeof(*mr));
 }
@@ -78,8 +78,8 @@ mlx5_aso_dereg_mr(struct mlx5_dev_ctx_shared *sh, struct 
mlx5_pmd_mr *mr)
 /**
  * Register Memory Region.
  *
- * @param[in] sh
- *   Pointer to shared device context.
+ * @param[in] cdev
+ *   Pointer to the mlx5 common device.
  * @param[in] length
  *   Size of MR buffer.
  * @param[in/out] mr
@@ -91,7 +91,7 @@ mlx5_aso_dereg_mr(struct mlx5_dev_ctx_shared *sh, struct 
mlx5_pmd_mr *mr)
  *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 static int
-mlx5_aso_reg_mr(struct mlx5_dev_ctx_shared *sh, size_t length,
+mlx5_aso_reg_mr(struct mlx5_common_device *cdev, size_t length,
                struct mlx5_pmd_mr *mr, int socket)
 {
 
@@ -103,7 +103,7 @@ mlx5_aso_reg_mr(struct mlx5_dev_ctx_shared *sh, size_t 
length,
                DRV_LOG(ERR, "Failed to create ASO bits mem for MR.");
                return -1;
        }
-       ret = sh->share_cache.reg_mr_cb(sh->cdev->pd, mr->addr, length, mr);
+       ret = cdev->mr_scache.reg_mr_cb(cdev->pd, mr->addr, length, mr);
        if (ret) {
                DRV_LOG(ERR, "Failed to create direct Mkey.");
                mlx5_free(mr->addr);
@@ -313,14 +313,14 @@ mlx5_aso_queue_init(struct mlx5_dev_ctx_shared *sh,
 
        switch (aso_opc_mod) {
        case ASO_OPC_MOD_FLOW_HIT:
-               if (mlx5_aso_reg_mr(sh, (MLX5_ASO_AGE_ACTIONS_PER_POOL / 8) *
+               if (mlx5_aso_reg_mr(cdev, (MLX5_ASO_AGE_ACTIONS_PER_POOL / 8) *
                                    sq_desc_n, &sh->aso_age_mng->aso_sq.mr, 0))
                        return -1;
                if (mlx5_aso_sq_create(cdev->ctx, &sh->aso_age_mng->aso_sq, 0,
                                       sh->tx_uar, cdev->pdn,
                                       MLX5_ASO_QUEUE_LOG_DESC,
                                       cdev->config.hca_attr.sq_ts_format)) {
-                       mlx5_aso_dereg_mr(sh, &sh->aso_age_mng->aso_sq.mr);
+                       mlx5_aso_dereg_mr(cdev, &sh->aso_age_mng->aso_sq.mr);
                        return -1;
                }
                mlx5_aso_age_init_sq(&sh->aso_age_mng->aso_sq);
@@ -335,14 +335,14 @@ mlx5_aso_queue_init(struct mlx5_dev_ctx_shared *sh,
                break;
        case ASO_OPC_MOD_CONNECTION_TRACKING:
                /* 64B per object for query. */
-               if (mlx5_aso_reg_mr(sh, 64 * sq_desc_n,
+               if (mlx5_aso_reg_mr(cdev, 64 * sq_desc_n,
                                    &sh->ct_mng->aso_sq.mr, 0))
                        return -1;
                if (mlx5_aso_sq_create(cdev->ctx, &sh->ct_mng->aso_sq, 0,
                                       sh->tx_uar, cdev->pdn,
                                       MLX5_ASO_QUEUE_LOG_DESC,
                                       cdev->config.hca_attr.sq_ts_format)) {
-                       mlx5_aso_dereg_mr(sh, &sh->ct_mng->aso_sq.mr);
+                       mlx5_aso_dereg_mr(cdev, &sh->ct_mng->aso_sq.mr);
                        return -1;
                }
                mlx5_aso_ct_init_sq(&sh->ct_mng->aso_sq);
@@ -370,14 +370,14 @@ mlx5_aso_queue_uninit(struct mlx5_dev_ctx_shared *sh,
 
        switch (aso_opc_mod) {
        case ASO_OPC_MOD_FLOW_HIT:
-               mlx5_aso_dereg_mr(sh, &sh->aso_age_mng->aso_sq.mr);
+               mlx5_aso_dereg_mr(sh->cdev, &sh->aso_age_mng->aso_sq.mr);
                sq = &sh->aso_age_mng->aso_sq;
                break;
        case ASO_OPC_MOD_POLICER:
                sq = &sh->mtrmng->pools_mng.sq;
                break;
        case ASO_OPC_MOD_CONNECTION_TRACKING:
-               mlx5_aso_dereg_mr(sh, &sh->ct_mng->aso_sq.mr);
+               mlx5_aso_dereg_mr(sh->cdev, &sh->ct_mng->aso_sq.mr);
                sq = &sh->ct_mng->aso_sq;
                break;
        default:
diff --git a/drivers/net/mlx5/mlx5_mr.c b/drivers/net/mlx5/mlx5_mr.c
index 9ce973d95c..38780202dc 100644
--- a/drivers/net/mlx5/mlx5_mr.c
+++ b/drivers/net/mlx5/mlx5_mr.c
@@ -12,46 +12,10 @@
 #include <mlx5_common_mr.h>
 
 #include "mlx5.h"
-#include "mlx5_mr.h"
 #include "mlx5_rxtx.h"
 #include "mlx5_rx.h"
 #include "mlx5_tx.h"
 
-/**
- * Callback for memory event. This can be called from both primary and 
secondary
- * process.
- *
- * @param event_type
- *   Memory event type.
- * @param addr
- *   Address of memory.
- * @param len
- *   Size of memory.
- */
-void
-mlx5_mr_mem_event_cb(enum rte_mem_event event_type, const void *addr,
-                    size_t len, void *arg __rte_unused)
-{
-       struct mlx5_dev_ctx_shared *sh;
-       struct mlx5_dev_list *dev_list = &mlx5_shared_data->mem_event_cb_list;
-
-       /* Must be called from the primary process. */
-       MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
-       switch (event_type) {
-       case RTE_MEM_EVENT_FREE:
-               rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
-               /* Iterate all the existing mlx5 devices. */
-               LIST_FOREACH(sh, dev_list, mem_event_cb)
-                       mlx5_free_mr_by_addr(&sh->share_cache,
-                                            sh->ibdev_name, addr, len);
-               rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
-               break;
-       case RTE_MEM_EVENT_ALLOC:
-       default:
-               break;
-       }
-}
-
 /**
  * Bottom-half of LKey search on Tx.
  *
@@ -72,7 +36,7 @@ mlx5_tx_addr2mr_bh(struct mlx5_txq_data *txq, uintptr_t addr)
        struct mlx5_priv *priv = txq_ctrl->priv;
 
        return mlx5_mr_addr2mr_bh(priv->sh->cdev->pd, &priv->mp_id,
-                                 &priv->sh->share_cache, mr_ctrl, addr,
+                                 &priv->sh->cdev->mr_scache, mr_ctrl, addr,
                                  priv->sh->cdev->config.mr_ext_memseg_en);
 }
 
@@ -110,7 +74,7 @@ mlx5_tx_mb2mr_bh(struct mlx5_txq_data *txq, struct rte_mbuf 
*mb)
                        mp = buf->mp;
                }
                if (mp != NULL) {
-                       lkey = mlx5_mr_mempool2mr_bh(&priv->sh->share_cache,
+                       lkey = mlx5_mr_mempool2mr_bh(&priv->sh->cdev->mr_scache,
                                                     mr_ctrl, mp, addr);
                        /*
                         * Lookup can only fail on invalid input, e.g. "addr"
@@ -169,7 +133,7 @@ mlx5_net_dma_map(struct rte_device *rte_dev, void *addr,
        struct rte_eth_dev *dev;
        struct mlx5_mr *mr;
        struct mlx5_priv *priv;
-       struct mlx5_dev_ctx_shared *sh;
+       struct mlx5_common_device *cdev;
 
        dev = dev_to_eth_dev(rte_dev);
        if (!dev) {
@@ -179,20 +143,20 @@ mlx5_net_dma_map(struct rte_device *rte_dev, void *addr,
                return -1;
        }
        priv = dev->data->dev_private;
-       sh = priv->sh;
-       mr = mlx5_create_mr_ext(sh->cdev->pd, (uintptr_t)addr, len,
-                               SOCKET_ID_ANY, sh->share_cache.reg_mr_cb);
+       cdev = priv->sh->cdev;
+       mr = mlx5_create_mr_ext(cdev->pd, (uintptr_t)addr, len,
+                               SOCKET_ID_ANY, cdev->mr_scache.reg_mr_cb);
        if (!mr) {
                DRV_LOG(WARNING,
                        "port %u unable to dma map", dev->data->port_id);
                rte_errno = EINVAL;
                return -1;
        }
-       rte_rwlock_write_lock(&sh->share_cache.rwlock);
-       LIST_INSERT_HEAD(&sh->share_cache.mr_list, mr, mr);
+       rte_rwlock_write_lock(&cdev->mr_scache.rwlock);
+       LIST_INSERT_HEAD(&cdev->mr_scache.mr_list, mr, mr);
        /* Insert to the global cache table. */
-       mlx5_mr_insert_cache(&sh->share_cache, mr);
-       rte_rwlock_write_unlock(&sh->share_cache.rwlock);
+       mlx5_mr_insert_cache(&cdev->mr_scache, mr);
+       rte_rwlock_write_unlock(&cdev->mr_scache.rwlock);
        return 0;
 }
 
@@ -217,7 +181,7 @@ mlx5_net_dma_unmap(struct rte_device *rte_dev, void *addr,
 {
        struct rte_eth_dev *dev;
        struct mlx5_priv *priv;
-       struct mlx5_dev_ctx_shared *sh;
+       struct mlx5_common_device *cdev;
        struct mlx5_mr *mr;
        struct mr_cache_entry entry;
 
@@ -229,11 +193,11 @@ mlx5_net_dma_unmap(struct rte_device *rte_dev, void *addr,
                return -1;
        }
        priv = dev->data->dev_private;
-       sh = priv->sh;
-       rte_rwlock_write_lock(&sh->share_cache.rwlock);
-       mr = mlx5_mr_lookup_list(&sh->share_cache, &entry, (uintptr_t)addr);
+       cdev = priv->sh->cdev;
+       rte_rwlock_write_lock(&cdev->mr_scache.rwlock);
+       mr = mlx5_mr_lookup_list(&cdev->mr_scache, &entry, (uintptr_t)addr);
        if (!mr) {
-               rte_rwlock_write_unlock(&sh->share_cache.rwlock);
+               rte_rwlock_write_unlock(&cdev->mr_scache.rwlock);
                DRV_LOG(WARNING, "address 0x%" PRIxPTR " wasn't registered to 
device %s",
                        (uintptr_t)addr, rte_dev->name);
                rte_errno = EINVAL;
@@ -242,16 +206,16 @@ mlx5_net_dma_unmap(struct rte_device *rte_dev, void *addr,
        LIST_REMOVE(mr, mr);
        DRV_LOG(DEBUG, "port %u remove MR(%p) from list", dev->data->port_id,
              (void *)mr);
-       mlx5_mr_free(mr, sh->share_cache.dereg_mr_cb);
-       mlx5_mr_rebuild_cache(&sh->share_cache);
+       mlx5_mr_free(mr, cdev->mr_scache.dereg_mr_cb);
+       mlx5_mr_rebuild_cache(&cdev->mr_scache);
        /*
         * No explicit wmb is needed after updating dev_gen due to
         * store-release ordering in unlock that provides the
         * implicit barrier at the software visible level.
         */
-       ++sh->share_cache.dev_gen;
+       ++cdev->mr_scache.dev_gen;
        DRV_LOG(DEBUG, "broadcasting local cache flush, gen=%d",
-             sh->share_cache.dev_gen);
-       rte_rwlock_write_unlock(&sh->share_cache.rwlock);
+             cdev->mr_scache.dev_gen);
+       rte_rwlock_write_unlock(&cdev->mr_scache.rwlock);
        return 0;
 }
diff --git a/drivers/net/mlx5/mlx5_mr.h b/drivers/net/mlx5/mlx5_mr.h
deleted file mode 100644
index c984e777b5..0000000000
--- a/drivers/net/mlx5/mlx5_mr.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright 2018 6WIND S.A.
- * Copyright 2018 Mellanox Technologies, Ltd
- */
-
-#ifndef RTE_PMD_MLX5_MR_H_
-#define RTE_PMD_MLX5_MR_H_
-
-#include <stddef.h>
-#include <stdint.h>
-#include <sys/queue.h>
-
-#include <rte_ethdev.h>
-#include <rte_rwlock.h>
-#include <rte_bitmap.h>
-#include <rte_memory.h>
-
-#include <mlx5_common_mr.h>
-
-/* First entry must be NULL for comparison. */
-#define mlx5_mr_btree_len(bt) ((bt)->len - 1)
-
-void mlx5_mr_mem_event_cb(enum rte_mem_event event_type, const void *addr,
-                         size_t len, void *arg);
-
-#endif /* RTE_PMD_MLX5_MR_H_ */
diff --git a/drivers/net/mlx5/mlx5_rx.c b/drivers/net/mlx5/mlx5_rx.c
index e3b1051ba4..c83c7f4a39 100644
--- a/drivers/net/mlx5/mlx5_rx.c
+++ b/drivers/net/mlx5/mlx5_rx.c
@@ -22,7 +22,6 @@
 #include "mlx5_autoconf.h"
 #include "mlx5_defs.h"
 #include "mlx5.h"
-#include "mlx5_mr.h"
 #include "mlx5_utils.h"
 #include "mlx5_rxtx.h"
 #include "mlx5_rx.h"
diff --git a/drivers/net/mlx5/mlx5_rx.h b/drivers/net/mlx5/mlx5_rx.h
index 3952e64d50..42a12151fc 100644
--- a/drivers/net/mlx5/mlx5_rx.h
+++ b/drivers/net/mlx5/mlx5_rx.h
@@ -18,11 +18,13 @@
 
 #include "mlx5.h"
 #include "mlx5_autoconf.h"
-#include "mlx5_mr.h"
 
 /* Support tunnel matching. */
 #define MLX5_FLOW_TUNNEL 10
 
+/* First entry must be NULL for comparison. */
+#define mlx5_mr_btree_len(bt) ((bt)->len - 1)
+
 struct mlx5_rxq_stats {
 #ifdef MLX5_PMD_SOFT_COUNTERS
        uint64_t ipackets; /**< Total of successfully received packets. */
@@ -309,7 +311,7 @@ mlx5_rx_addr2mr(struct mlx5_rxq_data *rxq, uintptr_t addr)
         */
        rxq_ctrl = container_of(rxq, struct mlx5_rxq_ctrl, rxq);
        mp = mlx5_rxq_mprq_enabled(rxq) ? rxq->mprq_mp : rxq->mp;
-       return mlx5_mr_mempool2mr_bh(&rxq_ctrl->priv->sh->share_cache,
+       return mlx5_mr_mempool2mr_bh(&rxq_ctrl->priv->sh->cdev->mr_scache,
                                     mr_ctrl, mp, addr);
 }
 
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 479ea1324c..174899e661 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1245,7 +1245,7 @@ mlx5_mprq_alloc_mp(struct rte_eth_dev *dev)
                rte_errno = ENOMEM;
                return -rte_errno;
        }
-       ret = mlx5_mr_mempool_register(&priv->sh->share_cache,
+       ret = mlx5_mr_mempool_register(&priv->sh->cdev->mr_scache,
                                       priv->sh->cdev->pd, mp, &priv->mp_id);
        if (ret < 0 && rte_errno != EEXIST) {
                ret = rte_errno;
@@ -1453,7 +1453,7 @@ mlx5_rxq_new(struct rte_eth_dev *dev, uint16_t idx, 
uint16_t desc,
        }
        tmpl->type = MLX5_RXQ_TYPE_STANDARD;
        if (mlx5_mr_ctrl_init(&tmpl->rxq.mr_ctrl,
-                             &priv->sh->share_cache.dev_gen, socket)) {
+                             &priv->sh->cdev->mr_scache.dev_gen, socket)) {
                /* rte_errno is already set. */
                goto error;
        }
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 7b984eff35..ed1f2d2c8c 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -22,7 +22,6 @@
 #include "mlx5_autoconf.h"
 #include "mlx5_defs.h"
 #include "mlx5.h"
-#include "mlx5_mr.h"
 #include "mlx5_utils.h"
 #include "mlx5_rxtx.h"
 #include "mlx5_rx.h"
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index ad1144e218..b400295e7d 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -24,7 +24,6 @@
 #include "mlx5_utils.h"
 #include "mlx5.h"
 #include "mlx5_autoconf.h"
-#include "mlx5_mr.h"
 
 struct mlx5_priv;
 
diff --git a/drivers/net/mlx5/mlx5_rxtx_vec.h b/drivers/net/mlx5/mlx5_rxtx_vec.h
index 93b4f517bb..1aec72817e 100644
--- a/drivers/net/mlx5/mlx5_rxtx_vec.h
+++ b/drivers/net/mlx5/mlx5_rxtx_vec.h
@@ -12,7 +12,6 @@
 #include <mlx5_prm.h>
 
 #include "mlx5_autoconf.h"
-#include "mlx5_mr.h"
 
 /* HW checksum offload capabilities of vectorized Tx. */
 #define MLX5_VEC_TX_CKSUM_OFFLOAD_CAP \
diff --git a/drivers/net/mlx5/mlx5_trigger.c b/drivers/net/mlx5/mlx5_trigger.c
index cf4fbd3c9f..54c2893437 100644
--- a/drivers/net/mlx5/mlx5_trigger.c
+++ b/drivers/net/mlx5/mlx5_trigger.c
@@ -14,7 +14,6 @@
 #include <mlx5_malloc.h>
 
 #include "mlx5.h"
-#include "mlx5_mr.h"
 #include "mlx5_rx.h"
 #include "mlx5_tx.h"
 #include "mlx5_utils.h"
@@ -148,7 +147,7 @@ mlx5_rxq_mempool_register(struct mlx5_rxq_ctrl *rxq_ctrl)
        }
        for (s = 0; s < rxq_ctrl->rxq.rxseg_n; s++) {
                mp = rxq_ctrl->rxq.rxseg[s].mp;
-               ret = mlx5_mr_mempool_register(&priv->sh->share_cache,
+               ret = mlx5_mr_mempool_register(&priv->sh->cdev->mr_scache,
                                               priv->sh->cdev->pd, mp,
                                               &priv->mp_id);
                if (ret < 0 && rte_errno != EEXIST)
diff --git a/drivers/net/mlx5/mlx5_tx.c b/drivers/net/mlx5/mlx5_tx.c
index df671379e4..2cc9ae6772 100644
--- a/drivers/net/mlx5/mlx5_tx.c
+++ b/drivers/net/mlx5/mlx5_tx.c
@@ -22,7 +22,6 @@
 #include "mlx5_autoconf.h"
 #include "mlx5_defs.h"
 #include "mlx5.h"
-#include "mlx5_mr.h"
 #include "mlx5_utils.h"
 #include "mlx5_rxtx.h"
 #include "mlx5_tx.h"
diff --git a/drivers/net/mlx5/mlx5_tx.h b/drivers/net/mlx5/mlx5_tx.h
index a6aa34084c..1f124b92e6 100644
--- a/drivers/net/mlx5/mlx5_tx.h
+++ b/drivers/net/mlx5/mlx5_tx.h
@@ -18,7 +18,6 @@
 
 #include "mlx5.h"
 #include "mlx5_autoconf.h"
-#include "mlx5_mr.h"
 
 /* TX burst subroutines return codes. */
 enum mlx5_txcmp_code {
diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c
index 4b027d6807..2c3c134f6f 100644
--- a/drivers/net/mlx5/mlx5_txq.c
+++ b/drivers/net/mlx5/mlx5_txq.c
@@ -1125,7 +1125,7 @@ mlx5_txq_new(struct rte_eth_dev *dev, uint16_t idx, 
uint16_t desc,
                return NULL;
        }
        if (mlx5_mr_ctrl_init(&tmpl->txq.mr_ctrl,
-                             &priv->sh->share_cache.dev_gen, socket)) {
+                             &priv->sh->cdev->mr_scache.dev_gen, socket)) {
                /* rte_errno is already set. */
                goto error;
        }
diff --git a/drivers/net/mlx5/windows/mlx5_os.c 
b/drivers/net/mlx5/windows/mlx5_os.c
index c3d4b90946..afdfff8b36 100644
--- a/drivers/net/mlx5/windows/mlx5_os.c
+++ b/drivers/net/mlx5/windows/mlx5_os.c
@@ -26,7 +26,6 @@
 #include "mlx5_rx.h"
 #include "mlx5_tx.h"
 #include "mlx5_autoconf.h"
-#include "mlx5_mr.h"
 #include "mlx5_flow.h"
 #include "mlx5_devx.h"
 
@@ -122,21 +121,8 @@ mlx5_init_shared_data(void)
 static int
 mlx5_init_once(void)
 {
-       struct mlx5_shared_data *sd;
-
        if (mlx5_init_shared_data())
                return -rte_errno;
-       sd = mlx5_shared_data;
-       rte_spinlock_lock(&sd->lock);
-       MLX5_ASSERT(sd);
-       if (!sd->init_done) {
-               LIST_INIT(&sd->mem_event_cb_list);
-               rte_rwlock_init(&sd->mem_event_rwlock);
-               rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
-                                               mlx5_mr_mem_event_cb, NULL);
-               sd->init_done = true;
-       }
-       rte_spinlock_unlock(&sd->lock);
        return 0;
 }
 
diff --git a/drivers/regex/mlx5/mlx5_regex.c b/drivers/regex/mlx5/mlx5_regex.c
index d95c0b7f2c..a79fb7e5be 100644
--- a/drivers/regex/mlx5/mlx5_regex.c
+++ b/drivers/regex/mlx5/mlx5_regex.c
@@ -25,10 +25,6 @@
 
 int mlx5_regex_logtype;
 
-TAILQ_HEAD(regex_mem_event, mlx5_regex_priv) mlx5_mem_event_list =
-                               TAILQ_HEAD_INITIALIZER(mlx5_mem_event_list);
-static pthread_mutex_t mem_event_list_lock = PTHREAD_MUTEX_INITIALIZER;
-
 const struct rte_regexdev_ops mlx5_regexdev_ops = {
        .dev_info_get = mlx5_regex_info_get,
        .dev_configure = mlx5_regex_configure,
@@ -86,41 +82,6 @@ mlx5_regex_get_name(char *name, struct rte_device *dev)
        sprintf(name, "mlx5_regex_%s", dev->name);
 }
 
-/**
- * Callback for memory event.
- *
- * @param event_type
- *   Memory event type.
- * @param addr
- *   Address of memory.
- * @param len
- *   Size of memory.
- */
-static void
-mlx5_regex_mr_mem_event_cb(enum rte_mem_event event_type, const void *addr,
-                          size_t len, void *arg __rte_unused)
-{
-       struct mlx5_regex_priv *priv;
-
-       /* Must be called from the primary process. */
-       MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
-       switch (event_type) {
-       case RTE_MEM_EVENT_FREE:
-               pthread_mutex_lock(&mem_event_list_lock);
-               /* Iterate all the existing mlx5 devices. */
-               TAILQ_FOREACH(priv, &mlx5_mem_event_list, mem_event_cb)
-                       mlx5_free_mr_by_addr(&priv->mr_scache,
-                                            mlx5_os_get_ctx_device_name
-                                                             (priv->cdev->ctx),
-                                            addr, len);
-               pthread_mutex_unlock(&mem_event_list_lock);
-               break;
-       case RTE_MEM_EVENT_ALLOC:
-       default:
-               break;
-       }
-}
-
 static int
 mlx5_regex_dev_probe(struct mlx5_common_device *cdev)
 {
@@ -191,21 +152,6 @@ mlx5_regex_dev_probe(struct mlx5_common_device *cdev)
        priv->regexdev->device = cdev->dev;
        priv->regexdev->data->dev_private = priv;
        priv->regexdev->state = RTE_REGEXDEV_READY;
-       ret = mlx5_mr_create_cache(&priv->mr_scache, rte_socket_id());
-       if (ret) {
-               DRV_LOG(ERR, "MR init tree failed.");
-           rte_errno = ENOMEM;
-               goto error;
-       }
-       /* Register callback function for global shared MR cache management. */
-       if (TAILQ_EMPTY(&mlx5_mem_event_list))
-               rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
-                                               mlx5_regex_mr_mem_event_cb,
-                                               NULL);
-       /* Add device to memory callback list. */
-       pthread_mutex_lock(&mem_event_list_lock);
-       TAILQ_INSERT_TAIL(&mlx5_mem_event_list, priv, mem_event_cb);
-       pthread_mutex_unlock(&mem_event_list_lock);
        DRV_LOG(INFO, "RegEx GGA is %s.",
                priv->has_umr ? "supported" : "unsupported");
        return 0;
@@ -234,15 +180,6 @@ mlx5_regex_dev_remove(struct mlx5_common_device *cdev)
                return 0;
        priv = dev->data->dev_private;
        if (priv) {
-               /* Remove from memory callback device list. */
-               pthread_mutex_lock(&mem_event_list_lock);
-               TAILQ_REMOVE(&mlx5_mem_event_list, priv, mem_event_cb);
-               pthread_mutex_unlock(&mem_event_list_lock);
-               if (TAILQ_EMPTY(&mlx5_mem_event_list))
-                       rte_mem_event_callback_unregister("MLX5_MEM_EVENT_CB",
-                                                         NULL);
-               if (priv->mr_scache.cache.table)
-                       mlx5_mr_release_cache(&priv->mr_scache);
                if (priv->uar)
                        mlx5_glue->devx_free_uar(priv->uar);
                if (priv->regexdev)
diff --git a/drivers/regex/mlx5/mlx5_regex.h b/drivers/regex/mlx5/mlx5_regex.h
index 8ccb6abd52..31dd6d690f 100644
--- a/drivers/regex/mlx5/mlx5_regex.h
+++ b/drivers/regex/mlx5/mlx5_regex.h
@@ -68,9 +68,6 @@ struct mlx5_regex_priv {
                                MLX5_RXP_EM_COUNT];
        uint32_t nb_engines; /* Number of RegEx engines. */
        struct mlx5dv_devx_uar *uar; /* UAR object. */
-       TAILQ_ENTRY(mlx5_regex_priv) mem_event_cb;
-       /**< Called by memory event callback. */
-       struct mlx5_mr_share_cache mr_scache; /* Global shared MR cache. */
        uint8_t is_bf2; /* The device is BF2 device. */
        uint8_t has_umr; /* The device supports UMR. */
 };
diff --git a/drivers/regex/mlx5/mlx5_regex_control.c 
b/drivers/regex/mlx5/mlx5_regex_control.c
index cd5dfa34e4..390b8e664f 100644
--- a/drivers/regex/mlx5/mlx5_regex_control.c
+++ b/drivers/regex/mlx5/mlx5_regex_control.c
@@ -243,7 +243,7 @@ mlx5_regex_qp_setup(struct rte_regexdev *dev, uint16_t 
qp_ind,
                nb_sq_config++;
        }
 
-       ret = mlx5_mr_ctrl_init(&qp->mr_ctrl, &priv->mr_scache.dev_gen,
+       ret = mlx5_mr_ctrl_init(&qp->mr_ctrl, &priv->cdev->mr_scache.dev_gen,
                                rte_socket_id());
        if (ret) {
                DRV_LOG(ERR, "Error setting up mr btree");
diff --git a/drivers/regex/mlx5/mlx5_regex_fastpath.c 
b/drivers/regex/mlx5/mlx5_regex_fastpath.c
index 9a7c0a6f45..5a4987ad7c 100644
--- a/drivers/regex/mlx5/mlx5_regex_fastpath.c
+++ b/drivers/regex/mlx5/mlx5_regex_fastpath.c
@@ -126,7 +126,7 @@ static inline uint32_t
 mlx5_regex_mb2mr(struct mlx5_regex_priv *priv, struct mlx5_mr_ctrl *mr_ctrl,
                 struct rte_mbuf *mbuf)
 {
-       return mlx5_mr_mb2mr(priv->cdev, 0, mr_ctrl, mbuf, &priv->mr_scache);
+       return mlx5_mr_mb2mr(priv->cdev, 0, mr_ctrl, mbuf);
 }
 
 static inline void
-- 
2.25.1

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