[v2,1/6] net/mlx5: fix default minimal data inline

Message ID 1565010234-21769-2-git-send-email-viacheslavo@mellanox.com (mailing list archive)
State Accepted, archived
Delegated to: Raslan Darawsheh
Headers
Series fix transmit datapath cumulative series |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/iol-Compile-Testing success Compile Testing PASS
ci/Intel-compilation success Compilation OK
ci/intel-Performance-Testing success Performance Testing PASS
ci/mellanox-Performance-Testing success Performance Testing PASS

Commit Message

Slava Ovsiienko Aug. 5, 2019, 1:03 p.m. UTC
  The patch [Fixes] sets the default value of required minimal
inline data to 0 bytes. On some configurations (depends
on switchdev/legacy settings and FW version/settings)
the ConnectX-4LX NIC requires minimal 18 bytes of
Tx descriptor inline data to operate correctly.

Wrongly set to 0 default value may prevent NIC from operating
with out-of-the-box settings, this patch reverts default
value for ConnectX-4LX back to 18 bytes (inline L2).

Fixes: 9f350504bb32 ("net/mlx5: fix ConnectX-4LX minimal inline data limit")

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
---
 drivers/net/mlx5/mlx5.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
  

Comments

Raslan Darawsheh Aug. 5, 2019, 2:41 p.m. UTC | #1
Hi,

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Viacheslav Ovsiienko
> Sent: Monday, August 5, 2019 4:04 PM
> To: dev@dpdk.org
> Cc: Yongseok Koh <yskoh@mellanox.com>; Matan Azrad
> <matan@mellanox.com>
> Subject: [dpdk-dev] [PATCH v2 1/6] net/mlx5: fix default minimal data inline
> 
> The patch [Fixes] sets the default value of required minimal inline data to 0
> bytes. On some configurations (depends on switchdev/legacy settings and
> FW version/settings) the ConnectX-4LX NIC requires minimal 18 bytes of Tx
> descriptor inline data to operate correctly.
> 
> Wrongly set to 0 default value may prevent NIC from operating with out-of-
> the-box settings, this patch reverts default value for ConnectX-4LX back to 18
> bytes (inline L2).
> 
> Fixes: 9f350504bb32 ("net/mlx5: fix ConnectX-4LX minimal inline data limit")
> 
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
> Acked-by: Matan Azrad <matan@mellanox.com>
> ---
>  drivers/net/mlx5/mlx5.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index
> 909c22e..a3eacdb 100644
> --- a/drivers/net/mlx5/mlx5.c
> +++ b/drivers/net/mlx5/mlx5.c
> @@ -1325,12 +1325,9 @@ struct mlx5_dev_spawn_data {
>  	switch (spawn->pci_dev->id.device_id) {
>  	case PCI_DEVICE_ID_MELLANOX_CONNECTX4:
>  	case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
> -		config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
> -		config->hw_vlan_insert = 0;
> -		break;
>  	case PCI_DEVICE_ID_MELLANOX_CONNECTX4LX:
>  	case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
> -		config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
> +		config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
>  		config->hw_vlan_insert = 0;
>  		break;
>  	case PCI_DEVICE_ID_MELLANOX_CONNECTX5:
> --
> 1.8.3.1

Series applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh
  

Patch

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 909c22e..a3eacdb 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -1325,12 +1325,9 @@  struct mlx5_dev_spawn_data {
 	switch (spawn->pci_dev->id.device_id) {
 	case PCI_DEVICE_ID_MELLANOX_CONNECTX4:
 	case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
-		config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
-		config->hw_vlan_insert = 0;
-		break;
 	case PCI_DEVICE_ID_MELLANOX_CONNECTX4LX:
 	case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
-		config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
+		config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
 		config->hw_vlan_insert = 0;
 		break;
 	case PCI_DEVICE_ID_MELLANOX_CONNECTX5: