[dpdk-dev] [PATCH] net/mlx5: fix probing the device in legacy bonding mode

[dpdk-dev] [PATCH] net/mlx5: fix probing the device in legacy bonding mode

[Viacheslav Ovsiienko]

If the device was configured as legacy bond one (without
involving E-Switch), the mlx5 PMD erroneously tried to deduce
the vport index raising the fatal error and preventing
device from being used.

The patch checks whether there is E-Switch present and we
should use vport index indeed.

Fixes: 2eb4d0107acc ("net/mlx5: refactor PCI probing on Linux")
Fixes: d5c06b1b10ae ("net/mlx5: query vport index match mode and parameters")
Cc: stable@dpdk.org

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 drivers/net/mlx5/linux/mlx5_os.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index ad43141e47..8f4b34e577 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -1097,7 +1097,8 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
 	}
 	if (devx_port.comp_mask & MLX5DV_DEVX_PORT_VPORT) {
 		priv->vport_id = devx_port.vport_num;
-	} else if (spawn->pf_bond >= 0) {
+	} else if (spawn->pf_bond >= 0 &&
+		   (switch_info->representor || switch_info->master)) {
 		DRV_LOG(ERR, "can't deduce vport index for port %d"
 			     " on bonding device %s",
 			     spawn->phys_port,
-- 
2.28.0

Re: [dpdk-dev] [PATCH] net/mlx5: fix probing the device in legacy bonding mode

[Raslan Darawsheh]

Hi,

> -----Original Message-----
> From: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> Sent: Wednesday, April 21, 2021 11:10 AM
> To: dev@dpdk.org
> Cc: Raslan Darawsheh <rasland@nvidia.com>; Matan Azrad
> <matan@nvidia.com>; Ori Kam <orika@nvidia.com>; stable@dpdk.org
> Subject: [PATCH] net/mlx5: fix probing the device in legacy bonding mode
> 
> If the device was configured as legacy bond one (without involving E-Switch),
> the mlx5 PMD erroneously tried to deduce the vport index raising the fatal
> error and preventing device from being used.
> 
> The patch checks whether there is E-Switch present and we should use vport
> index indeed.
> 
> Fixes: 2eb4d0107acc ("net/mlx5: refactor PCI probing on Linux")
> Fixes: d5c06b1b10ae ("net/mlx5: query vport index match mode and
> parameters")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh