From: Jesper Dangaard Brouer <brouer@redhat.com>
To: bpf@vger.kernel.org, "Stanislav Fomichev" <sdf@google.com>,
"Toke Høiland-Jørgensen" <toke@redhat.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
martin.lau@kernel.org, ast@kernel.org, daniel@iogearbox.net,
alexandr.lobakin@intel.com, larysa.zaremba@intel.com,
xdp-hints@xdp-project.net, anthony.l.nguyen@intel.com,
yoong.siang.song@intel.com, boon.leong.ong@intel.com,
intel-wired-lan@lists.osuosl.org, pabeni@redhat.com,
jesse.brandeburg@intel.com, kuba@kernel.org, edumazet@google.com,
john.fastabend@gmail.com, hawk@kernel.org, davem@davemloft.net,
tariqt@nvidia.com
Subject: [PATCH bpf V4 4/5] mlx4: bpf_xdp_metadata_rx_hash add xdp rss hash type
Date: Fri, 31 Mar 2023 17:03:22 +0200 [thread overview]
Message-ID: <168027500212.3941176.5689557848062983862.stgit@firesoul> (raw)
In-Reply-To: <168027495947.3941176.6690238098903275241.stgit@firesoul>
Update API for bpf_xdp_metadata_rx_hash() with arg for xdp rss hash type
via matching indiviual Completion Queue Entry (CQE) status bits.
Fixes: ab46182d0dcb ("net/mlx4_en: Support RX XDP metadata")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
---
drivers/net/ethernet/mellanox/mlx4/en_rx.c | 22 ++++++++++++++++++++--
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 3 ++-
2 files changed, 22 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 4b5e459b6d49..d3f46d8b4160 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -681,14 +681,32 @@ int mlx4_en_xdp_rx_timestamp(const struct xdp_md *ctx, u64 *timestamp)
return 0;
}
-int mlx4_en_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash)
+int mlx4_en_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash,
+ enum xdp_rss_hash_type *rss_type)
{
struct mlx4_en_xdp_buff *_ctx = (void *)ctx;
+ struct mlx4_cqe *cqe = _ctx->cqe;
+ enum xdp_rss_hash_type xht = 0;
+ __be16 status;
if (unlikely(!(_ctx->dev->features & NETIF_F_RXHASH)))
return -ENODATA;
- *hash = be32_to_cpu(_ctx->cqe->immed_rss_invalid);
+ *hash = be32_to_cpu(cqe->immed_rss_invalid);
+ status = cqe->status;
+ if (status & cpu_to_be16(MLX4_CQE_STATUS_TCP))
+ xht = XDP_RSS_L4_TCP;
+ if (status & cpu_to_be16(MLX4_CQE_STATUS_UDP))
+ xht = XDP_RSS_L4_UDP;
+ if (status & cpu_to_be16(MLX4_CQE_STATUS_IPV4|MLX4_CQE_STATUS_IPV4F))
+ xht |= XDP_RSS_L3_IPV4;
+ if (status & cpu_to_be16(MLX4_CQE_STATUS_IPV6)) {
+ xht |= XDP_RSS_L3_IPV6;
+ if (cqe->ipv6_ext_mask)
+ xht |= XDP_RSS_L3_DYNHDR;
+ }
+ *rss_type = xht;
+
return 0;
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 544e09b97483..4ac4d883047b 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -798,7 +798,8 @@ int mlx4_en_netdev_event(struct notifier_block *this,
struct xdp_md;
int mlx4_en_xdp_rx_timestamp(const struct xdp_md *ctx, u64 *timestamp);
-int mlx4_en_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash);
+int mlx4_en_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash,
+ enum xdp_rss_hash_type *rss_type);
/*
* Functions for time stamping
next prev parent reply other threads:[~2023-03-31 15:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-31 15:03 [PATCH bpf V4 0/5] XDP-hints: API change for RX-hash kfunc bpf_xdp_metadata_rx_hash Jesper Dangaard Brouer
2023-03-31 15:03 ` [PATCH bpf V4 1/5] xdp: rss hash types representation Jesper Dangaard Brouer
2023-03-31 18:23 ` kernel test robot
2023-03-31 19:12 ` Jesper Dangaard Brouer
2023-03-31 15:03 ` [PATCH bpf V4 2/5] mlx5: bpf_xdp_metadata_rx_hash add xdp rss hash type Jesper Dangaard Brouer
2023-03-31 15:03 ` [PATCH bpf V4 3/5] veth: " Jesper Dangaard Brouer
2023-03-31 15:03 ` Jesper Dangaard Brouer [this message]
2023-03-31 15:03 ` [PATCH bpf V4 5/5] selftests/bpf: Adjust bpf_xdp_metadata_rx_hash for new arg Jesper Dangaard Brouer
2023-03-31 16:30 ` [PATCH bpf V4 0/5] XDP-hints: API change for RX-hash kfunc bpf_xdp_metadata_rx_hash Stanislav Fomichev
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