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path: root/drivers/net/ethernet/mellanox/mlx5/core
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c63
1 files changed, 27 insertions, 36 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
index 399957104f9d..eb8ef78e5626 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
@@ -275,12 +275,33 @@ static bool mlx5e_xmit_xdp_frame(struct mlx5e_xdpsq *sq, struct mlx5e_xdp_info *
return true;
}
+static void mlx5e_free_xdpsq_desc(struct mlx5e_xdpsq *sq,
+ struct mlx5e_xdp_wqe_info *wi,
+ struct mlx5e_rq *rq,
+ bool recycle)
+{
+ struct mlx5e_xdp_info_fifo *xdpi_fifo = &sq->db.xdpi_fifo;
+ u16 i;
+
+ for (i = 0; i < wi->num_pkts; i++) {
+ struct mlx5e_xdp_info xdpi = mlx5e_xdpi_fifo_pop(xdpi_fifo);
+
+ if (rq) {
+ /* XDP_TX */
+ mlx5e_page_release(rq, &xdpi.di, recycle);
+ } else {
+ /* XDP_REDIRECT */
+ dma_unmap_single(sq->pdev, xdpi.dma_addr,
+ xdpi.xdpf->len, DMA_TO_DEVICE);
+ xdp_return_frame(xdpi.xdpf);
+ }
+ }
+}
+
bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq, struct mlx5e_rq *rq)
{
- struct mlx5e_xdp_info_fifo *xdpi_fifo;
struct mlx5e_xdpsq *sq;
struct mlx5_cqe64 *cqe;
- bool is_redirect;
u16 sqcc;
int i;
@@ -293,9 +314,6 @@ bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq, struct mlx5e_rq *rq)
if (!cqe)
return false;
- is_redirect = !rq;
- xdpi_fifo = &sq->db.xdpi_fifo;
-
/* sq->cc must be updated only after mlx5_cqwq_update_db_record(),
* otherwise a cq overrun may occur
*/
@@ -317,7 +335,7 @@ bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq, struct mlx5e_rq *rq)
do {
struct mlx5e_xdp_wqe_info *wi;
- u16 ci, j;
+ u16 ci;
last_wqe = (sqcc == wqe_counter);
ci = mlx5_wq_cyc_ctr2ix(&sq->wq, sqcc);
@@ -325,19 +343,7 @@ bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq, struct mlx5e_rq *rq)
sqcc += wi->num_wqebbs;
- for (j = 0; j < wi->num_pkts; j++) {
- struct mlx5e_xdp_info xdpi =
- mlx5e_xdpi_fifo_pop(xdpi_fifo);
-
- if (is_redirect) {
- dma_unmap_single(sq->pdev, xdpi.dma_addr,
- xdpi.xdpf->len, DMA_TO_DEVICE);
- xdp_return_frame(xdpi.xdpf);
- } else {
- /* Recycle RX page */
- mlx5e_page_release(rq, &xdpi.di, true);
- }
- }
+ mlx5e_free_xdpsq_desc(sq, wi, rq, true);
} while (!last_wqe);
} while ((++i < MLX5E_TX_CQ_POLL_BUDGET) && (cqe = mlx5_cqwq_get_cqe(&cq->wq)));
@@ -354,31 +360,16 @@ bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq, struct mlx5e_rq *rq)
void mlx5e_free_xdpsq_descs(struct mlx5e_xdpsq *sq, struct mlx5e_rq *rq)
{
- struct mlx5e_xdp_info_fifo *xdpi_fifo = &sq->db.xdpi_fifo;
- bool is_redirect = !rq;
-
while (sq->cc != sq->pc) {
struct mlx5e_xdp_wqe_info *wi;
- u16 ci, i;
+ u16 ci;
ci = mlx5_wq_cyc_ctr2ix(&sq->wq, sq->cc);
wi = &sq->db.wqe_info[ci];
sq->cc += wi->num_wqebbs;
- for (i = 0; i < wi->num_pkts; i++) {
- struct mlx5e_xdp_info xdpi =
- mlx5e_xdpi_fifo_pop(xdpi_fifo);
-
- if (is_redirect) {
- dma_unmap_single(sq->pdev, xdpi.dma_addr,
- xdpi.xdpf->len, DMA_TO_DEVICE);
- xdp_return_frame(xdpi.xdpf);
- } else {
- /* Recycle RX page */
- mlx5e_page_release(rq, &xdpi.di, false);
- }
- }
+ mlx5e_free_xdpsq_desc(sq, wi, rq, false);
}
}