netdev - [PATCH net-next v3 0/4] net: ethtool: support including Flow Label in the flow hash for RSS

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Message-ID: <20250724015101.186608-1-kuba@kernel.org>
Date: Wed, 23 Jul 2025 18:50:57 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	pabeni@...hat.com,
	andrew+netdev@...n.ch,
	horms@...nel.org,
	donald.hunter@...il.com,
	michael.chan@...adcom.com,
	pavan.chebbi@...adcom.com,
	andrew@...n.ch,
	willemdebruijn.kernel@...il.com,
	Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v3 0/4] net: ethtool: support including Flow Label in the flow hash for RSS

Add support for using IPv6 Flow Label in Rx hash computation
and therefore RSS queue selection.

v3:
 - change the bnxt driver, bits are now exclusive
 - check for RPS/RFS in the test
v2:  https://lore.kernel.org/20250722014915.3365370-1-kuba@kernel.org
RFC: https://lore.kernel.org/20250609173442.1745856-1-kuba@kernel.org

Jakub Kicinski (4):
  net: ethtool: support including Flow Label in the flow hash for RSS
  eth: fbnic: support RSS on IPv6 Flow Label
  eth: bnxt: support RSS on IPv6 Flow Label
  selftests: drv-net: add test for RSS on flow label

 Documentation/netlink/specs/ethtool.yaml      |   3 +
 .../testing/selftests/drivers/net/hw/Makefile |   1 +
 drivers/net/ethernet/broadcom/bnxt/bnxt.h     |   1 +
 include/uapi/linux/ethtool.h                  |   1 +
 drivers/net/ethernet/broadcom/bnxt/bnxt.c     |   2 +
 .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c |  20 ++-
 .../net/ethernet/meta/fbnic/fbnic_ethtool.c   |   2 +-
 drivers/net/ethernet/meta/fbnic/fbnic_rpc.c   |   2 +
 net/ethtool/ioctl.c                           |  25 +++
 net/ethtool/rss.c                             |  27 +--
 .../drivers/net/hw/rss_flow_label.py          | 167 ++++++++++++++++++
 11 files changed, 233 insertions(+), 18 deletions(-)
 create mode 100755 tools/testing/selftests/drivers/net/hw/rss_flow_label.py

-- 
2.50.1