From: Jesper Dangaard Brouer <brouer@redhat.com>
To: bpf@vger.kernel.org, Stanislav Fomichev <sdf@google.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
Subject: [xdp-hints] [PATCH bpf RFC-V2 2/5] igc: bpf_xdp_metadata_rx_hash return xdp rss hash type
Date: Wed, 29 Mar 2023 18:29:08 +0200 [thread overview]
Message-ID: <168010734832.3039990.11189218865563948327.stgit@firesoul> (raw)
In-Reply-To: <168010726310.3039990.2753040700813178259.stgit@firesoul>
Update API for bpf_xdp_metadata_rx_hash() by returning xdp rss hash type
via mapping table.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
---
drivers/net/ethernet/intel/igc/igc_main.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index b382476f347c..a14f0597524a 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -6496,6 +6496,26 @@ static int igc_xdp_rx_timestamp(const struct xdp_md *_ctx, u64 *timestamp)
return -ENODATA;
}
+/* Mapping HW RSS Type to enum xdp_rss_hash_type */
+enum xdp_rss_hash_type igc_xdp_rss_type[IGC_RSS_TYPE_MAX_TABLE] = {
+ [IGC_RSS_TYPE_NO_HASH] = XDP_RSS_TYPE_L2,
+ [IGC_RSS_TYPE_HASH_TCP_IPV4] = XDP_RSS_TYPE_L4_IPV4_TCP,
+ [IGC_RSS_TYPE_HASH_IPV4] = XDP_RSS_TYPE_L3_IPV4,
+ [IGC_RSS_TYPE_HASH_TCP_IPV6] = XDP_RSS_TYPE_L4_IPV6_TCP,
+ [IGC_RSS_TYPE_HASH_IPV6_EX] = XDP_RSS_TYPE_L3_IPV6_EX,
+ [IGC_RSS_TYPE_HASH_IPV6] = XDP_RSS_TYPE_L3_IPV6,
+ [IGC_RSS_TYPE_HASH_TCP_IPV6_EX] = XDP_RSS_TYPE_L4_IPV6_TCP_EX,
+ [IGC_RSS_TYPE_HASH_UDP_IPV4] = XDP_RSS_TYPE_L4_IPV4_UDP,
+ [IGC_RSS_TYPE_HASH_UDP_IPV6] = XDP_RSS_TYPE_L4_IPV6_UDP,
+ [IGC_RSS_TYPE_HASH_UDP_IPV6_EX] = XDP_RSS_TYPE_L4_IPV6_UDP_EX,
+ [10] = XDP_RSS_TYPE_NONE, /* RSS Type above 9 "Reserved" by HW */
+ [11] = XDP_RSS_TYPE_NONE, /* keep array sized for SW bit-mask */
+ [12] = XDP_RSS_TYPE_NONE, /* to handle future HW revisons */
+ [13] = XDP_RSS_TYPE_NONE,
+ [14] = XDP_RSS_TYPE_NONE,
+ [15] = XDP_RSS_TYPE_NONE,
+};
+
static int igc_xdp_rx_hash(const struct xdp_md *_ctx, u32 *hash)
{
const struct igc_xdp_buff *ctx = (void *)_ctx;
@@ -6505,7 +6525,7 @@ static int igc_xdp_rx_hash(const struct xdp_md *_ctx, u32 *hash)
*hash = le32_to_cpu(ctx->rx_desc->wb.lower.hi_dword.rss);
- return 0;
+ return igc_xdp_rss_type[igc_rss_type(ctx->rx_desc)];
}
const struct xdp_metadata_ops igc_xdp_metadata_ops = {
next prev parent reply other threads:[~2023-03-29 16:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-29 16:28 [xdp-hints] [PATCH bpf RFC-V2 0/5] XDP-hints: API change for RX-hash kfunc bpf_xdp_metadata_rx_hash Jesper Dangaard Brouer
2023-03-29 16:29 ` [xdp-hints] [PATCH bpf RFC-V2 1/5] xdp: rss hash types representation Jesper Dangaard Brouer
2023-03-29 17:59 ` [xdp-hints] " Jesper Dangaard Brouer
2023-03-29 21:46 ` Toke Høiland-Jørgensen
2023-03-29 16:29 ` Jesper Dangaard Brouer [this message]
2023-03-29 16:29 ` [xdp-hints] [PATCH bpf RFC-V2 3/5] veth: bpf_xdp_metadata_rx_hash return xdp rss hash type Jesper Dangaard Brouer
2023-03-29 16:29 ` [xdp-hints] [PATCH bpf RFC-V2 4/5] mlx5: " Jesper Dangaard Brouer
2023-03-29 16:29 ` [xdp-hints] [PATCH bpf RFC-V2 5/5] mlx4: " Jesper Dangaard Brouer
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