net/mlx5e: Improve MQPRIO resiliency

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* Add netdev->tc_to_txq rollback in case of failure in
  mlx5e_update_netdev_queues().
* Fix broken transition between the two modes:
  MQPRIO DCB mode with tc==8, and MQPRIO channel mode.
* Disable MQPRIO channel mode if re-attaching with a different number
  of channels.
* Improve code sharing.

Fixes: ec60c4581b ("net/mlx5e: Support MQPRIO channel mode")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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Tariq Toukan 2021-09-29 15:51:26 +03:00 • committed by Saeed Mahameed

parent 9d758d4a3a

commit 7dbc849b2a

2 changed files with 80 additions and 32 deletions

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1

drivers/net/ethernet/mellanox/mlx5/core/en.h

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111

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

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