mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-06 03:06:50 -04:00
Code Issues Packages Projects Releases Wiki Activity

eth: fbnic: support RSS on IPv6 Flow Label

Browse Source 
Support IPv6 Flow Label hashing. Use both inner and outer IPv6
header's Flow Label if both headers are detected. Flow Label
is unlike normal header fields, by enabling it user accepts
the unstable hash and possible reordering. Because of that
I think it's reasonable to hash over all Flow Labels we can
find, even tho we don't hash over all L3 addresses.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250811234212.580748-3-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Jakub Kicinski
2025-08-11 16:42:10 -07:00
committed by Paolo Abeni
parent f22cc6f766
commit 0afbfdc0f6
2 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c
View File

@@ -1310,7 +1310,7 @@ fbnic_get_rss_hash_opts(struct net_device *netdev,
#define FBNIC_L2_HASH_OPTIONS \
(RXH_L2DA | RXH_DISCARD)
#define FBNIC_L3_HASH_OPTIONS \
(FBNIC_L2_HASH_OPTIONS | RXH_IP_SRC | RXH_IP_DST)
(FBNIC_L2_HASH_OPTIONS | RXH_IP_SRC | RXH_IP_DST | RXH_IP6_FL)
#define FBNIC_L4_HASH_OPTIONS \
(FBNIC_L3_HASH_OPTIONS | RXH_L4_B_0_1 | RXH_L4_B_2_3)

2
drivers/net/ethernet/meta/fbnic/fbnic_rpc.c
View File

@@ -71,6 +71,8 @@ u16 fbnic_flow_hash_2_rss_en_mask(struct fbnic_net *fbn, int flow_type)
rss_en_mask |= FBNIC_FH_2_RSSEM_BIT(IP_DST, IP_DST, flow_hash);
rss_en_mask |= FBNIC_FH_2_RSSEM_BIT(L4_B_0_1, L4_SRC, flow_hash);
rss_en_mask |= FBNIC_FH_2_RSSEM_BIT(L4_B_2_3, L4_DST, flow_hash);
rss_en_mask |= FBNIC_FH_2_RSSEM_BIT(IP6_FL, OV6_FL_LBL, flow_hash);
rss_en_mask |= FBNIC_FH_2_RSSEM_BIT(IP6_FL, IV6_FL_LBL, flow_hash);
return rss_en_mask;
}