net/mlx5e: Don't wait for SQ completions on close

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Instead of asking the firmware to flush the SQ (Send Queue) via
asynchronous completions when moved to error, we handle SQ flush
manually (mlx5e_free_tx_descs) same as we did when SQ flush got
timed out or on tx_timeout.

This will reduce SQs flush time and speedup interface down procedure.

Moved mlx5e_free_tx_descs to the end of en_tx.c for tx
critical code locality.

Fixes: 29429f3300 ('net/mlx5e: Timeout if SQ doesn't flush during close')
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Saeed Mahameed 2016-08-29 01:13:45 +03:00 • committed by David S. Miller

parent 8484f9ed13

commit 6e8dd6d6f4

4 changed files with 44 additions and 70 deletions

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3

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

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50

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

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67

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

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6

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

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