[dpdk-dev] [PATCH v3 8/9] net/mlx5: register multiple pool for Rx queue

Viacheslav Ovsiienko viacheslavo at nvidia.com
Mon Oct 12 18:19:44 CEST 2020


The split feature for receiving packets was added to the mlx5
PMD, now Rx queue can receive the data to the buffers belonging
to the different pools and the memory of all the involved pool
must be registered for DMA operations in order to allow hardware
to store the data.

Signed-off-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
---
 drivers/net/mlx5/mlx5_mr.c      |  3 +++
 drivers/net/mlx5/mlx5_trigger.c | 20 ++++++++++++--------
 2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_mr.c b/drivers/net/mlx5/mlx5_mr.c
index dbcf0aa..c308ecc 100644
--- a/drivers/net/mlx5/mlx5_mr.c
+++ b/drivers/net/mlx5/mlx5_mr.c
@@ -536,6 +536,9 @@ struct mr_update_mp_data {
 		.ret = 0,
 	};
 
+	DRV_LOG(DEBUG, "Port %u Rx queue registering mp %s "
+		       "having %u chunks.", dev->data->port_id,
+		       mp->name, mp->nb_mem_chunks);
 	rte_mempool_mem_iter(mp, mlx5_mr_update_mp_cb, &data);
 	if (data.ret < 0 && rte_errno == ENXIO) {
 		/* Mempool may have externally allocated memory. */
diff --git a/drivers/net/mlx5/mlx5_trigger.c b/drivers/net/mlx5/mlx5_trigger.c
index e72e5fb..643e10f 100644
--- a/drivers/net/mlx5/mlx5_trigger.c
+++ b/drivers/net/mlx5/mlx5_trigger.c
@@ -145,18 +145,22 @@
 		dev->data->port_id, priv->sh->device_attr.max_sge);
 	for (i = 0; i != priv->rxqs_n; ++i) {
 		struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_get(dev, i);
-		struct rte_mempool *mp;
 
 		if (!rxq_ctrl)
 			continue;
 		if (rxq_ctrl->type == MLX5_RXQ_TYPE_STANDARD) {
-			/* Pre-register Rx mempool. */
-			mp = mlx5_rxq_mprq_enabled(&rxq_ctrl->rxq) ?
-			     rxq_ctrl->rxq.mprq_mp : rxq_ctrl->rxq.mp;
-			DRV_LOG(DEBUG, "Port %u Rx queue %u registering mp %s"
-				" having %u chunks.", dev->data->port_id,
-				rxq_ctrl->rxq.idx, mp->name, mp->nb_mem_chunks);
-			mlx5_mr_update_mp(dev, &rxq_ctrl->rxq.mr_ctrl, mp);
+			/* Pre-register Rx mempools. */
+			if (mlx5_rxq_mprq_enabled(&rxq_ctrl->rxq)) {
+				mlx5_mr_update_mp(dev, &rxq_ctrl->rxq.mr_ctrl,
+						  rxq_ctrl->rxq.mprq_mp);
+			} else {
+				uint32_t s;
+
+				for (s = 0; s < rxq_ctrl->rxq.rxseg_n; s++)
+					mlx5_mr_update_mp
+						(dev, &rxq_ctrl->rxq.mr_ctrl,
+						rxq_ctrl->rxq.rxseg[s].mp);
+			}
 			ret = rxq_alloc_elts(rxq_ctrl);
 			if (ret)
 				goto error;
-- 
1.8.3.1



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