* [dpdk-dev] [PATCH] net/mlx5: fix packet length check assert in MPRQ
@ 2020-04-27 18:23 Alexander Kozyrev
2020-04-30 9:50 ` Raslan Darawsheh
0 siblings, 1 reply; 2+ messages in thread
From: Alexander Kozyrev @ 2020-04-27 18:23 UTC (permalink / raw)
To: dev; +Cc: stable, rasland, viacheslavo
The assert that checks if there is a enough room for the
whole packet minus headroom data is written incorrectly.
The check should be negated in order to work properly.
Fixes: bd0d593 ("net/mlx5: enable MPRQ multi-stride operations")
Cc: stable@dpdk.org
Signed-off-by: Alexander Kozyrev <akozyrev@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
---
drivers/net/mlx5/mlx5_rxtx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index a212010..6a17a9a 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -1814,7 +1814,7 @@ enum mlx5_txcmp_code {
/* Set mbuf head-room. */
SET_DATA_OFF(pkt, RTE_PKTMBUF_HEADROOM);
MLX5_ASSERT(pkt->ol_flags == EXT_ATTACHED_MBUF);
- MLX5_ASSERT(rte_pktmbuf_tailroom(pkt) <
+ MLX5_ASSERT(rte_pktmbuf_tailroom(pkt) >=
len - (hdrm_overlap > 0 ? hdrm_overlap : 0));
DATA_LEN(pkt) = len;
/*
--
1.8.3.1
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [dpdk-dev] [PATCH] net/mlx5: fix packet length check assert in MPRQ
2020-04-27 18:23 [dpdk-dev] [PATCH] net/mlx5: fix packet length check assert in MPRQ Alexander Kozyrev
@ 2020-04-30 9:50 ` Raslan Darawsheh
0 siblings, 0 replies; 2+ messages in thread
From: Raslan Darawsheh @ 2020-04-30 9:50 UTC (permalink / raw)
To: Alexander Kozyrev, dev; +Cc: stable, Slava Ovsiienko
Hi,
> -----Original Message-----
> From: Alexander Kozyrev <akozyrev@mellanox.com>
> Sent: Monday, April 27, 2020 9:23 PM
> To: dev@dpdk.org
> Cc: stable@dpdk.org; Raslan Darawsheh <rasland@mellanox.com>; Slava
> Ovsiienko <viacheslavo@mellanox.com>
> Subject: [PATCH] net/mlx5: fix packet length check assert in MPRQ
>
> The assert that checks if there is a enough room for the
> whole packet minus headroom data is written incorrectly.
> The check should be negated in order to work properly.
>
> Fixes: bd0d593 ("net/mlx5: enable MPRQ multi-stride operations")
> Cc: stable@dpdk.org
>
> Signed-off-by: Alexander Kozyrev <akozyrev@mellanox.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
> ---
> drivers/net/mlx5/mlx5_rxtx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
> index a212010..6a17a9a 100644
> --- a/drivers/net/mlx5/mlx5_rxtx.c
> +++ b/drivers/net/mlx5/mlx5_rxtx.c
> @@ -1814,7 +1814,7 @@ enum mlx5_txcmp_code {
> /* Set mbuf head-room. */
> SET_DATA_OFF(pkt, RTE_PKTMBUF_HEADROOM);
> MLX5_ASSERT(pkt->ol_flags ==
> EXT_ATTACHED_MBUF);
> - MLX5_ASSERT(rte_pktmbuf_tailroom(pkt) <
> + MLX5_ASSERT(rte_pktmbuf_tailroom(pkt) >=
> len - (hdrm_overlap > 0 ? hdrm_overlap : 0));
> DATA_LEN(pkt) = len;
> /*
> --
> 1.8.3.1
Patch applied to next-net-mlx,
Kindest regards,
Raslan Darawsheh
^ permalink raw reply [flat|nested] 2+ messages in thread
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