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| author | David S. Miller <davem@davemloft.net> | 2016-10-30 12:42:58 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-10-30 12:42:58 -0400 |
| commit | 27058af401e49d88a905df000dd26f443fcfa8ce (patch) | |
| tree | 819f32113d3b8374b9fbf72e2202d4c4d4511a60 /drivers/net/ethernet/mellanox/mlx4/en_cq.c | |
| parent | 357f4aae859b5d74554b0ccbb18556f1df4166c3 (diff) | |
| parent | 2a26d99b251b8625d27aed14e97fc10707a3a81f (diff) | |
| download | linux-stable-27058af401e49d88a905df000dd26f443fcfa8ce.tar.gz linux-stable-27058af401e49d88a905df000dd26f443fcfa8ce.tar.bz2 linux-stable-27058af401e49d88a905df000dd26f443fcfa8ce.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Mostly simple overlapping changes.
For example, David Ahern's adjacency list revamp in 'net-next'
conflicted with an adjacency list traversal bug fix in 'net'.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_cq.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_cq.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c index 132cea655920..e3be7e44ff51 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c @@ -127,7 +127,15 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, /* For TX we use the same irq per ring we assigned for the RX */ struct mlx4_en_cq *rx_cq; - + int xdp_index; + + /* The xdp tx irq must align with the rx ring that forwards to + * it, so reindex these from 0. This should only happen when + * tx_ring_num is not a multiple of rx_ring_num. + */ + xdp_index = (priv->xdp_ring_num - priv->tx_ring_num) + cq_idx; + if (xdp_index >= 0) + cq_idx = xdp_index; cq_idx = cq_idx % priv->rx_ring_num; rx_cq = priv->rx_cq[cq_idx]; cq->vector = rx_cq->vector; |