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-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en.h8
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_main.c2
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_rx.c11
3 files changed, 17 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 303e6cdf9fcd..6e24e821a1d8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -189,6 +189,7 @@ static const char vport_strings[][ETH_GSTRING_LEN] = {
"rx_wqe_err",
"rx_mpwqe_filler",
"rx_mpwqe_frag",
+ "rx_buff_alloc_err",
};
struct mlx5e_vport_stats {
@@ -232,8 +233,9 @@ struct mlx5e_vport_stats {
u64 rx_wqe_err;
u64 rx_mpwqe_filler;
u64 rx_mpwqe_frag;
+ u64 rx_buff_alloc_err;
-#define NUM_VPORT_COUNTERS 37
+#define NUM_VPORT_COUNTERS 38
};
static const char pport_strings[][ETH_GSTRING_LEN] = {
@@ -329,6 +331,7 @@ static const char rq_stats_strings[][ETH_GSTRING_LEN] = {
"wqe_err",
"mpwqe_filler",
"mpwqe_frag",
+ "buff_alloc_err",
};
struct mlx5e_rq_stats {
@@ -341,7 +344,8 @@ struct mlx5e_rq_stats {
u64 wqe_err;
u64 mpwqe_filler;
u64 mpwqe_frag;
-#define NUM_RQ_STATS 9
+ u64 buff_alloc_err;
+#define NUM_RQ_STATS 10
};
static const char sq_stats_strings[][ETH_GSTRING_LEN] = {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 9b17bc064cc8..d485d1e4e100 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -180,6 +180,7 @@ void mlx5e_update_stats(struct mlx5e_priv *priv)
s->rx_wqe_err = 0;
s->rx_mpwqe_filler = 0;
s->rx_mpwqe_frag = 0;
+ s->rx_buff_alloc_err = 0;
for (i = 0; i < priv->params.num_channels; i++) {
rq_stats = &priv->channel[i]->rq.stats;
@@ -192,6 +193,7 @@ void mlx5e_update_stats(struct mlx5e_priv *priv)
s->rx_wqe_err += rq_stats->wqe_err;
s->rx_mpwqe_filler += rq_stats->mpwqe_filler;
s->rx_mpwqe_frag += rq_stats->mpwqe_frag;
+ s->rx_buff_alloc_err += rq_stats->buff_alloc_err;
for (j = 0; j < priv->params.num_tc; j++) {
sq_stats = &priv->channel[i]->sq[j].stats;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index ee5fa16aafd1..918b7c7fd74f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -447,9 +447,14 @@ bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq)
while (!mlx5_wq_ll_is_full(wq)) {
struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(wq, wq->head);
+ int err;
- if (unlikely(rq->alloc_wqe(rq, wqe, wq->head)))
+ err = rq->alloc_wqe(rq, wqe, wq->head);
+ if (unlikely(err)) {
+ if (err != -EBUSY)
+ rq->stats.buff_alloc_err++;
break;
+ }
mlx5_wq_ll_push(wq, be16_to_cpu(wqe->next.next_wqe_index));
}
@@ -701,8 +706,10 @@ void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
skb = napi_alloc_skb(rq->cq.napi,
ALIGN(MLX5_MPWRQ_SMALL_PACKET_THRESHOLD,
sizeof(long)));
- if (unlikely(!skb))
+ if (unlikely(!skb)) {
+ rq->stats.buff_alloc_err++;
goto mpwrq_cqe_out;
+ }
prefetch(skb->data);
cqe_bcnt = mpwrq_get_cqe_byte_cnt(cqe);