net/mlx5: fix UAR lock sharing for multiport devices
[dpdk.git] / drivers / net / mlx5 / mlx5_rxq.c
index dc0fd82..2681322 100644 (file)
@@ -34,6 +34,7 @@
 
 #include "mlx5_defs.h"
 #include "mlx5.h"
+#include "mlx5_common_os.h"
 #include "mlx5_rxtx.h"
 #include "mlx5_utils.h"
 #include "mlx5_autoconf.h"
@@ -107,7 +108,7 @@ inline int
 mlx5_mprq_enabled(struct rte_eth_dev *dev)
 {
        struct mlx5_priv *priv = dev->data->dev_private;
-       uint16_t i;
+       uint32_t i;
        uint16_t n = 0;
        uint16_t n_ibv = 0;
 
@@ -453,19 +454,19 @@ mlx5_rxq_releasable(struct rte_eth_dev *dev, uint16_t idx)
  *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 static int
-mlx5_rx_queue_pre_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc)
+mlx5_rx_queue_pre_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t *desc)
 {
        struct mlx5_priv *priv = dev->data->dev_private;
 
-       if (!rte_is_power_of_2(desc)) {
-               desc = 1 << log2above(desc);
+       if (!rte_is_power_of_2(*desc)) {
+               *desc = 1 << log2above(*desc);
                DRV_LOG(WARNING,
                        "port %u increased number of descriptors in Rx queue %u"
                        " to the next power of two (%d)",
-                       dev->data->port_id, idx, desc);
+                       dev->data->port_id, idx, *desc);
        }
        DRV_LOG(DEBUG, "port %u configuring Rx queue %u for %u descriptors",
-               dev->data->port_id, idx, desc);
+               dev->data->port_id, idx, *desc);
        if (idx >= priv->rxqs_n) {
                DRV_LOG(ERR, "port %u Rx queue index out of range (%u >= %u)",
                        dev->data->port_id, idx, priv->rxqs_n);
@@ -511,7 +512,7 @@ mlx5_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
                container_of(rxq, struct mlx5_rxq_ctrl, rxq);
        int res;
 
-       res = mlx5_rx_queue_pre_setup(dev, idx, desc);
+       res = mlx5_rx_queue_pre_setup(dev, idx, &desc);
        if (res)
                return res;
        rxq_ctrl = mlx5_rxq_new(dev, idx, desc, socket, conf, mp);
@@ -552,7 +553,7 @@ mlx5_rx_hairpin_queue_setup(struct rte_eth_dev *dev, uint16_t idx,
                container_of(rxq, struct mlx5_rxq_ctrl, rxq);
        int res;
 
-       res = mlx5_rx_queue_pre_setup(dev, idx, desc);
+       res = mlx5_rx_queue_pre_setup(dev, idx, &desc);
        if (res)
                return res;
        if (hairpin_conf->peer_count != 1 ||
@@ -1267,7 +1268,7 @@ mlx5_rxq_obj_hairpin_new(struct rte_eth_dev *dev, uint16_t idx)
                container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
        struct mlx5_devx_create_rq_attr attr = { 0 };
        struct mlx5_rxq_obj *tmpl = NULL;
-       int ret = 0;
+       uint32_t max_wq_data;
 
        MLX5_ASSERT(rxq_data);
        MLX5_ASSERT(!rxq_ctrl->obj);
@@ -1278,24 +1279,41 @@ mlx5_rxq_obj_hairpin_new(struct rte_eth_dev *dev, uint16_t idx)
                        "port %u Rx queue %u cannot allocate verbs resources",
                        dev->data->port_id, rxq_data->idx);
                rte_errno = ENOMEM;
-               goto error;
+               return NULL;
        }
        tmpl->type = MLX5_RXQ_OBJ_TYPE_DEVX_HAIRPIN;
        tmpl->rxq_ctrl = rxq_ctrl;
        attr.hairpin = 1;
-       /* Workaround for hairpin startup */
-       attr.wq_attr.log_hairpin_num_packets = log2above(32);
-       /* Workaround for packets larger than 1KB */
-       attr.wq_attr.log_hairpin_data_sz =
-                       priv->config.hca_attr.log_max_hairpin_wq_data_sz;
+       max_wq_data = priv->config.hca_attr.log_max_hairpin_wq_data_sz;
+       /* Jumbo frames > 9KB should be supported, and more packets. */
+       if (priv->config.log_hp_size != (uint32_t)MLX5_ARG_UNSET) {
+               if (priv->config.log_hp_size > max_wq_data) {
+                       DRV_LOG(ERR, "total data size %u power of 2 is "
+                               "too large for hairpin",
+                               priv->config.log_hp_size);
+                       rte_free(tmpl);
+                       rte_errno = ERANGE;
+                       return NULL;
+               }
+               attr.wq_attr.log_hairpin_data_sz = priv->config.log_hp_size;
+       } else {
+               attr.wq_attr.log_hairpin_data_sz =
+                               (max_wq_data < MLX5_HAIRPIN_JUMBO_LOG_SIZE) ?
+                                max_wq_data : MLX5_HAIRPIN_JUMBO_LOG_SIZE;
+       }
+       /* Set the packets number to the maximum value for performance. */
+       attr.wq_attr.log_hairpin_num_packets =
+                       attr.wq_attr.log_hairpin_data_sz -
+                       MLX5_HAIRPIN_QUEUE_STRIDE;
        tmpl->rq = mlx5_devx_cmd_create_rq(priv->sh->ctx, &attr,
                                           rxq_ctrl->socket);
        if (!tmpl->rq) {
                DRV_LOG(ERR,
                        "port %u Rx hairpin queue %u can't create rq object",
                        dev->data->port_id, idx);
+               rte_free(tmpl);
                rte_errno = errno;
-               goto error;
+               return NULL;
        }
        DRV_LOG(DEBUG, "port %u rxq %u updated with %p", dev->data->port_id,
                idx, (void *)&tmpl);
@@ -1303,12 +1321,6 @@ mlx5_rxq_obj_hairpin_new(struct rte_eth_dev *dev, uint16_t idx)
        LIST_INSERT_HEAD(&priv->rxqsobj, tmpl, next);
        priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_NONE;
        return tmpl;
-error:
-       ret = rte_errno; /* Save rte_errno before cleanup. */
-       if (tmpl->rq)
-               mlx5_devx_cmd_destroy(tmpl->rq);
-       rte_errno = ret; /* Restore rte_errno. */
-       return NULL;
 }
 
 /**
@@ -1394,19 +1406,20 @@ mlx5_rxq_obj_new(struct rte_eth_dev *dev, uint16_t idx,
                goto error;
        }
        DRV_LOG(DEBUG, "port %u device_attr.max_qp_wr is %d",
-               dev->data->port_id, priv->sh->device_attr.orig_attr.max_qp_wr);
+               dev->data->port_id, priv->sh->device_attr.max_qp_wr);
        DRV_LOG(DEBUG, "port %u device_attr.max_sge is %d",
-               dev->data->port_id, priv->sh->device_attr.orig_attr.max_sge);
+               dev->data->port_id, priv->sh->device_attr.max_sge);
        /* Allocate door-bell for types created with DevX. */
        if (tmpl->type != MLX5_RXQ_OBJ_TYPE_IBV) {
                struct mlx5_devx_dbr_page *dbr_page;
                int64_t dbr_offset;
 
-               dbr_offset = mlx5_get_dbr(dev, &dbr_page);
+               dbr_offset = mlx5_get_dbr(priv->sh->ctx, &priv->dbrpgs,
+                                         &dbr_page);
                if (dbr_offset < 0)
                        goto error;
                rxq_ctrl->dbr_offset = dbr_offset;
-               rxq_ctrl->dbr_umem_id = dbr_page->umem->umem_id;
+               rxq_ctrl->dbr_umem_id = mlx5_os_get_umem_id(dbr_page->umem);
                rxq_ctrl->dbr_umem_id_valid = 1;
                rxq_data->rq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs +
                                               (uintptr_t)rxq_ctrl->dbr_offset);
@@ -1777,9 +1790,10 @@ mlx5_rxq_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
        struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_rxq_ctrl *tmpl;
        unsigned int mb_len = rte_pktmbuf_data_room_size(mp);
+       unsigned int mprq_stride_nums;
        unsigned int mprq_stride_size;
+       unsigned int mprq_stride_cap;
        struct mlx5_dev_config *config = &priv->config;
-       unsigned int strd_headroom_en;
        /*
         * Always allocate extra slots, even if eventually
         * the vector Rx will not be used.
@@ -1825,42 +1839,42 @@ mlx5_rxq_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
        tmpl->socket = socket;
        if (dev->data->dev_conf.intr_conf.rxq)
                tmpl->irq = 1;
-       /*
-        * LRO packet may consume all the stride memory, hence we cannot
-        * guaranty head-room near the packet memory in the stride.
-        * In this case scatter is, for sure, enabled and an empty mbuf may be
-        * added in the start for the head-room.
-        */
-       if (lro_on_queue && RTE_PKTMBUF_HEADROOM > 0 &&
-           non_scatter_min_mbuf_size > mb_len) {
-               strd_headroom_en = 0;
-               mprq_stride_size = RTE_MIN(max_rx_pkt_len,
-                                       1u << config->mprq.max_stride_size_n);
-       } else {
-               strd_headroom_en = 1;
-               mprq_stride_size = non_scatter_min_mbuf_size;
-       }
+       mprq_stride_nums = config->mprq.stride_num_n ?
+               config->mprq.stride_num_n : MLX5_MPRQ_STRIDE_NUM_N;
+       mprq_stride_size = non_scatter_min_mbuf_size <=
+               (1U << config->mprq.max_stride_size_n) ?
+               log2above(non_scatter_min_mbuf_size) : MLX5_MPRQ_STRIDE_SIZE_N;
+       mprq_stride_cap = (config->mprq.stride_num_n ?
+               (1U << config->mprq.stride_num_n) : (1U << mprq_stride_nums)) *
+                       (config->mprq.stride_size_n ?
+               (1U << config->mprq.stride_size_n) : (1U << mprq_stride_size));
        /*
         * This Rx queue can be configured as a Multi-Packet RQ if all of the
         * following conditions are met:
         *  - MPRQ is enabled.
         *  - The number of descs is more than the number of strides.
-        *  - max_rx_pkt_len plus overhead is less than the max size of a
-        *    stride.
+        *  - max_rx_pkt_len plus overhead is less than the max size
+        *    of a stride or mprq_stride_size is specified by a user.
+        *    Need to nake sure that there are enough stides to encap
+        *    the maximum packet size in case mprq_stride_size is set.
         *  Otherwise, enable Rx scatter if necessary.
         */
-       if (mprq_en &&
-           desc > (1U << config->mprq.stride_num_n) &&
-           mprq_stride_size <= (1U << config->mprq.max_stride_size_n)) {
+       if (mprq_en && desc > (1U << mprq_stride_nums) &&
+           (non_scatter_min_mbuf_size <=
+            (1U << config->mprq.max_stride_size_n) ||
+            (config->mprq.stride_size_n &&
+             non_scatter_min_mbuf_size <= mprq_stride_cap))) {
                /* TODO: Rx scatter isn't supported yet. */
                tmpl->rxq.sges_n = 0;
                /* Trim the number of descs needed. */
-               desc >>= config->mprq.stride_num_n;
-               tmpl->rxq.strd_num_n = config->mprq.stride_num_n;
-               tmpl->rxq.strd_sz_n = RTE_MAX(log2above(mprq_stride_size),
-                                             config->mprq.min_stride_size_n);
+               desc >>= mprq_stride_nums;
+               tmpl->rxq.strd_num_n = config->mprq.stride_num_n ?
+                       config->mprq.stride_num_n : mprq_stride_nums;
+               tmpl->rxq.strd_sz_n = config->mprq.stride_size_n ?
+                       config->mprq.stride_size_n : mprq_stride_size;
                tmpl->rxq.strd_shift_en = MLX5_MPRQ_TWO_BYTE_SHIFT;
-               tmpl->rxq.strd_headroom_en = strd_headroom_en;
+               tmpl->rxq.strd_scatter_en =
+                               !!(offloads & DEV_RX_OFFLOAD_SCATTER);
                tmpl->rxq.mprq_max_memcpy_len = RTE_MIN(first_mb_free_size,
                                config->mprq.max_memcpy_len);
                max_lro_size = RTE_MIN(max_rx_pkt_len,
@@ -1904,14 +1918,24 @@ mlx5_rxq_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
                tmpl->rxq.sges_n = sges_n;
                max_lro_size = max_rx_pkt_len;
        }
-       if (mprq_en && !mlx5_rxq_mprq_enabled(&tmpl->rxq))
+       if (config->mprq.enabled && !mlx5_rxq_mprq_enabled(&tmpl->rxq))
                DRV_LOG(WARNING,
-                       "port %u MPRQ is requested but cannot be enabled"
-                       " (requested: desc = %u, stride_sz = %u,"
-                       " supported: min_stride_num = %u, max_stride_sz = %u).",
-                       dev->data->port_id, desc, mprq_stride_size,
-                       (1 << config->mprq.stride_num_n),
-                       (1 << config->mprq.max_stride_size_n));
+                       "port %u MPRQ is requested but cannot be enabled\n"
+                       " (requested: pkt_sz = %u, desc_num = %u,"
+                       " rxq_num = %u, stride_sz = %u, stride_num = %u\n"
+                       "  supported: min_rxqs_num = %u,"
+                       " min_stride_sz = %u, max_stride_sz = %u).",
+                       dev->data->port_id, non_scatter_min_mbuf_size,
+                       desc, priv->rxqs_n,
+                       config->mprq.stride_size_n ?
+                               (1U << config->mprq.stride_size_n) :
+                               (1U << mprq_stride_size),
+                       config->mprq.stride_num_n ?
+                               (1U << config->mprq.stride_num_n) :
+                               (1U << mprq_stride_nums),
+                       config->mprq.min_rxqs_num,
+                       (1U << config->mprq.min_stride_size_n),
+                       (1U << config->mprq.max_stride_size_n));
        DRV_LOG(DEBUG, "port %u maximum number of segments per packet: %u",
                dev->data->port_id, 1 << tmpl->rxq.sges_n);
        if (desc % (1 << tmpl->rxq.sges_n)) {
@@ -1973,7 +1997,7 @@ mlx5_rxq_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
        tmpl->rxq.elts =
                (struct rte_mbuf *(*)[1 << tmpl->rxq.elts_n])(tmpl + 1);
 #ifndef RTE_ARCH_64
-       tmpl->rxq.uar_lock_cq = &priv->uar_lock_cq;
+       tmpl->rxq.uar_lock_cq = &priv->sh->uar_lock_cq;
 #endif
        tmpl->rxq.idx = idx;
        rte_atomic32_inc(&tmpl->refcnt);
@@ -2079,7 +2103,8 @@ mlx5_rxq_release(struct rte_eth_dev *dev, uint16_t idx)
                rxq_ctrl->obj = NULL;
        if (rte_atomic32_dec_and_test(&rxq_ctrl->refcnt)) {
                if (rxq_ctrl->dbr_umem_id_valid)
-                       claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
+                       claim_zero(mlx5_release_dbr(&priv->dbrpgs,
+                                                   rxq_ctrl->dbr_umem_id,
                                                    rxq_ctrl->dbr_offset));
                if (rxq_ctrl->type == MLX5_RXQ_TYPE_STANDARD)
                        mlx5_mr_btree_free(&rxq_ctrl->rxq.mr_ctrl.cache_bh);
@@ -2365,9 +2390,9 @@ mlx5_ind_table_obj_verify(struct rte_eth_dev *dev)
  *   Tunnel type.
  *
  * @return
- *   The Verbs/DevX object initialised, NULL otherwise and rte_errno is set.
+ *   The Verbs/DevX object initialised index, 0 otherwise and rte_errno is set.
  */
-struct mlx5_hrxq *
+uint32_t
 mlx5_hrxq_new(struct rte_eth_dev *dev,
              const uint8_t *rss_key, uint32_t rss_key_len,
              uint64_t hash_fields,
@@ -2376,6 +2401,7 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
 {
        struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_hrxq *hrxq;
+       uint32_t hrxq_idx = 0;
        struct ibv_qp *qp = NULL;
        struct mlx5_ind_table_obj *ind_tbl;
        int err;
@@ -2395,7 +2421,7 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
        }
        if (!ind_tbl) {
                rte_errno = ENOMEM;
-               return NULL;
+               return 0;
        }
        if (ind_tbl->type == MLX5_IND_TBL_TYPE_IBV) {
 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
@@ -2514,7 +2540,8 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
                        tir_attr.transport_domain = priv->sh->td->id;
                else
                        tir_attr.transport_domain = priv->sh->tdn;
-               memcpy(tir_attr.rx_hash_toeplitz_key, rss_key, rss_key_len);
+               memcpy(tir_attr.rx_hash_toeplitz_key, rss_key,
+                      MLX5_RSS_HASH_KEY_LEN);
                tir_attr.indirect_table = ind_tbl->rqt->id;
                if (dev->data->dev_conf.lpbk_mode)
                        tir_attr.self_lb_block =
@@ -2535,7 +2562,7 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
                        goto error;
                }
        }
-       hrxq = rte_calloc(__func__, 1, sizeof(*hrxq) + rss_key_len, 0);
+       hrxq = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_HRXQ], &hrxq_idx);
        if (!hrxq)
                goto error;
        hrxq->ind_table = ind_tbl;
@@ -2564,8 +2591,9 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
        hrxq->hash_fields = hash_fields;
        memcpy(hrxq->rss_key, rss_key, rss_key_len);
        rte_atomic32_inc(&hrxq->refcnt);
-       LIST_INSERT_HEAD(&priv->hrxqs, hrxq, next);
-       return hrxq;
+       ILIST_INSERT(priv->sh->ipool[MLX5_IPOOL_HRXQ], &priv->hrxqs, hrxq_idx,
+                    hrxq, next);
+       return hrxq_idx;
 error:
        err = rte_errno; /* Save rte_errno before cleanup. */
        mlx5_ind_table_obj_release(dev, ind_tbl);
@@ -2574,7 +2602,7 @@ error:
        else if (tir)
                claim_zero(mlx5_devx_cmd_destroy(tir));
        rte_errno = err; /* Restore rte_errno. */
-       return NULL;
+       return 0;
 }
 
 /**
@@ -2591,9 +2619,9 @@ error:
  *   Number of queues.
  *
  * @return
- *   An hash Rx queue on success.
+ *   An hash Rx queue index on success.
  */
-struct mlx5_hrxq *
+uint32_t
 mlx5_hrxq_get(struct rte_eth_dev *dev,
              const uint8_t *rss_key, uint32_t rss_key_len,
              uint64_t hash_fields,
@@ -2601,9 +2629,11 @@ mlx5_hrxq_get(struct rte_eth_dev *dev,
 {
        struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_hrxq *hrxq;
+       uint32_t idx;
 
        queues_n = hash_fields ? queues_n : 1;
-       LIST_FOREACH(hrxq, &priv->hrxqs, next) {
+       ILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_HRXQ], priv->hrxqs, idx,
+                     hrxq, next) {
                struct mlx5_ind_table_obj *ind_tbl;
 
                if (hrxq->rss_key_len != rss_key_len)
@@ -2620,9 +2650,9 @@ mlx5_hrxq_get(struct rte_eth_dev *dev,
                        continue;
                }
                rte_atomic32_inc(&hrxq->refcnt);
-               return hrxq;
+               return idx;
        }
-       return NULL;
+       return 0;
 }
 
 /**
@@ -2631,14 +2661,20 @@ mlx5_hrxq_get(struct rte_eth_dev *dev,
  * @param dev
  *   Pointer to Ethernet device.
  * @param hrxq
- *   Pointer to Hash Rx queue to release.
+ *   Index to Hash Rx queue to release.
  *
  * @return
  *   1 while a reference on it exists, 0 when freed.
  */
 int
-mlx5_hrxq_release(struct rte_eth_dev *dev, struct mlx5_hrxq *hrxq)
+mlx5_hrxq_release(struct rte_eth_dev *dev, uint32_t hrxq_idx)
 {
+       struct mlx5_priv *priv = dev->data->dev_private;
+       struct mlx5_hrxq *hrxq;
+
+       hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ], hrxq_idx);
+       if (!hrxq)
+               return 0;
        if (rte_atomic32_dec_and_test(&hrxq->refcnt)) {
 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
                mlx5_glue->destroy_flow_action(hrxq->action);
@@ -2648,8 +2684,9 @@ mlx5_hrxq_release(struct rte_eth_dev *dev, struct mlx5_hrxq *hrxq)
                else /* hrxq->ind_table->type == MLX5_IND_TBL_TYPE_DEVX */
                        claim_zero(mlx5_devx_cmd_destroy(hrxq->tir));
                mlx5_ind_table_obj_release(dev, hrxq->ind_table);
-               LIST_REMOVE(hrxq, next);
-               rte_free(hrxq);
+               ILIST_REMOVE(priv->sh->ipool[MLX5_IPOOL_HRXQ], &priv->hrxqs,
+                            hrxq_idx, hrxq, next);
+               mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_HRXQ], hrxq_idx);
                return 0;
        }
        claim_nonzero(mlx5_ind_table_obj_release(dev, hrxq->ind_table));
@@ -2670,9 +2707,11 @@ mlx5_hrxq_verify(struct rte_eth_dev *dev)
 {
        struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_hrxq *hrxq;
+       uint32_t idx;
        int ret = 0;
 
-       LIST_FOREACH(hrxq, &priv->hrxqs, next) {
+       ILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_HRXQ], priv->hrxqs, idx,
+                     hrxq, next) {
                DRV_LOG(DEBUG,
                        "port %u hash Rx queue %p still referenced",
                        dev->data->port_id, (void *)hrxq);