diff mbox series

[v4,8/8] net/mlx5: check DevX to support more Verbs ports

Message ID 20211022091142.51397-9-xuemingl@nvidia.com (mailing list archive)
State Accepted, archived
Delegated to: Raslan Darawsheh
Headers
Series net/mlx5: support more than 255 representors |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/github-robot: build success github build: passed
ci/Intel-compilation success Compilation OK
ci/intel-Testing success Testing PASS

Commit Message

Xueming Li Oct. 22, 2021, 9:11 a.m. UTC 
  Verbs API doesn't support device port number larger than 255 by design.

To support more VF or SubFunction port representors, forces DevX API
check when max Verbs device link ports larger than 255.

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 drivers/net/mlx5/linux/mlx5_os.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index 2db842cb983..17192c7fd55 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -1243,12 +1243,6 @@  mlx5_dev_spawn(struct rte_device *dpdk_dev,
 		config->dv_flow_en = 0;
 	}
 #endif
-	if (spawn->max_port > UINT8_MAX) {
-		/* Verbs can't support ports larger than 255 by design. */
-		DRV_LOG(ERR, "can't support IB ports > UINT8_MAX");
-		err = EINVAL;
-		goto error;
-	}
 	config->ind_table_max_size =
 		sh->device_attr.max_rwq_indirection_table_size;
 	/*
@@ -1699,6 +1693,11 @@  mlx5_dev_spawn(struct rte_device *dpdk_dev,
 					mlx5_rxq_ibv_obj_dummy_lb_create;
 		priv->obj_ops.lb_dummy_queue_release =
 					mlx5_rxq_ibv_obj_dummy_lb_release;
+	} else if (spawn->max_port > UINT8_MAX) {
+		/* Verbs can't support ports larger than 255 by design. */
+		DRV_LOG(ERR, "must enable DV and ESW when RDMA link ports > 255");
+		err = ENOTSUP;
+		goto error;
 	} else {
 		priv->obj_ops = ibv_obj_ops;
 	}