net/mlx5e: Remove unnecessary fields in ICO SQ

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As of current design, in each NAPI, only a single UMR WQE
completion could be available in the completion queue of the
the internal control operations (ICO) send queue, in addition
to nop operations that require no actions upon completion.
This renders the consume index obsolete, as the wqe_counter
field in CQE is sufficient.

This helps removing a memory barrier, and obsoletes the need
for tracking the num_wqebbs to update the consumer counter.

In addition, remove other unused fields in icosq struct:
pdev, dma_fifo_pc, and prev_cc.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

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This commit is contained in:

Tariq Toukan 2017-07-17 14:31:39 +03:00 • committed by Saeed Mahameed

parent 7cc6d77bb5

commit 3b56f7b2af

3 changed files with 2 additions and 26 deletions

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7

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

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2

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

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19

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

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