From: Rayane Boussanni <rboussanni@gmail.com>
To: dev@dpdk.org
Cc: rasland@nvidia.com, Rayane Boussanni <rboussanni@gmail.com>
Subject: [PATCH] net/mlx5: query hardware capability for max lro size
Date: Mon, 20 Apr 2026 14:48:08 -0400 [thread overview]
Message-ID: <20260420184808.751-1-rboussanni@gmail.com> (raw)
Resolve a FIXME in mlx5_dev_infos_get() by dynamically checking the
hardware lro_cap flag instead of unconditionally advertising
MLX5_MAX_LRO_SIZE. Retains the standard 32-byte fallback for
min_rx_bufsize.
Signed-off-by: Rayane Boussanni <rboussanni@gmail.com>
---
drivers/net/mlx5/mlx5_ethdev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index a29cdeeb50..fb51de031b 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -363,9 +363,9 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
info->min_mtu = priv->min_mtu;
info->max_mtu = priv->max_mtu;
info->max_rx_pktlen = info->max_mtu + MLX5_ETH_OVERHEAD;
- /* FIXME: we should ask the device for these values. */
info->min_rx_bufsize = 32;
- info->max_lro_pkt_size = MLX5_MAX_LRO_SIZE;
+ info->max_lro_pkt_size = priv->sh->cdev->config.hca_attr.lro_cap ?
+ MLX5_MAX_LRO_SIZE : 0;
/*
* Since we need one CQ per QP, the limit is the minimum number
* between the two values.
--
2.34.1
next reply other threads:[~2026-04-20 18:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-20 18:48 Rayane Boussanni [this message]
2026-04-24 8:52 ` [PATCH] net/mlx5: query hardware capability for max lro size Dariusz Sosnowski
2026-04-24 14:27 ` [PATCH v2] " Rayane Boussanni
2026-04-24 16:55 ` Dariusz Sosnowski
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