diff options
author | Tariq Toukan | 2018-10-14 13:37:48 +0200 |
---|---|---|
committer | Saeed Mahameed | 2018-12-21 07:54:19 +0100 |
commit | fea28dd6a281045e18c1412ab5bba54436c11088 (patch) | |
tree | 8efa18422c498c212296b5e28a9e95ad36df530b /drivers/net/ethernet/mellanox/mlx5/core/en_main.c | |
parent | net/mlx5e: XDP, Replace boolean doorbell indication with segment pointer (diff) | |
download | kernel-qcow2-linux-fea28dd6a281045e18c1412ab5bba54436c11088.tar.gz kernel-qcow2-linux-fea28dd6a281045e18c1412ab5bba54436c11088.tar.xz kernel-qcow2-linux-fea28dd6a281045e18c1412ab5bba54436c11088.zip |
net/mlx5e: XDP, Maintain a FIFO structure for xdp_info instances
This provides infrastructure to have multiple xdp_info instances
for the same consumer index.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_main.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 8a19f451fb7a..a9f773f6d09a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -992,18 +992,35 @@ static void mlx5e_close_rq(struct mlx5e_rq *rq) static void mlx5e_free_xdpsq_db(struct mlx5e_xdpsq *sq) { - kvfree(sq->db.xdpi); + kvfree(sq->db.xdpi_fifo.xi); +} + +static int mlx5e_alloc_xdpsq_fifo(struct mlx5e_xdpsq *sq, int numa) +{ + struct mlx5e_xdp_info_fifo *xdpi_fifo = &sq->db.xdpi_fifo; + int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); + int dsegs_per_wq = wq_sz * MLX5_SEND_WQEBB_NUM_DS; + + xdpi_fifo->xi = kvzalloc_node(sizeof(*xdpi_fifo->xi) * dsegs_per_wq, + GFP_KERNEL, numa); + if (!xdpi_fifo->xi) + return -ENOMEM; + + xdpi_fifo->pc = &sq->xdpi_fifo_pc; + xdpi_fifo->cc = &sq->xdpi_fifo_cc; + xdpi_fifo->mask = dsegs_per_wq - 1; + + return 0; } static int mlx5e_alloc_xdpsq_db(struct mlx5e_xdpsq *sq, int numa) { - int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); + int err; - sq->db.xdpi = kvzalloc_node(array_size(wq_sz, sizeof(*sq->db.xdpi)), - GFP_KERNEL, numa); - if (!sq->db.xdpi) { + err = mlx5e_alloc_xdpsq_fifo(sq, numa); + if (err) { mlx5e_free_xdpsq_db(sq); - return -ENOMEM; + return err; } return 0; |