diff options
| author | Tariq Toukan <tariqt@mellanox.com> | 2016-04-20 22:02:15 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-21 22:09:05 +0300 |
| commit | bc77b240b3c57236cdcc08d64ca390655d3a16ff (patch) | |
| tree | eadc6903f24a01af114b3379bc1f7efd6652f59b /drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c | |
| parent | d3c9bc2743dc95b273ed0e6a3394a71ca314813c (diff) | |
| download | linux-bc77b240b3c57236cdcc08d64ca390655d3a16ff.tar.xz | |
net/mlx5e: Add fragmented memory support for RX multi packet WQE
If the allocation of a linear (physically continuous) MPWQE fails,
we allocate a fragmented MPWQE.
This is implemented via device's UMR (User Memory Registration)
which allows to register multiple memory fragments into ConnectX
hardware as a continuous buffer.
UMR registration is an asynchronous operation and is done via
ICO SQs.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c index ad624cb6f147..a3fd0f55ce2e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c @@ -84,6 +84,9 @@ static void mlx5e_poll_ico_cq(struct mlx5e_cq *cq) switch (icowi->opcode) { case MLX5_OPCODE_NOP: break; + case MLX5_OPCODE_UMR: + mlx5e_post_rx_fragmented_mpwqe(&sq->channel->rq); + break; default: WARN_ONCE(true, "mlx5e: Bad OPCODE in ICOSQ WQE info: 0x%x\n", |