linux/include
Gal Pressman 1b2900db01 ethtool: Block setting of symmetric RSS when non-symmetric rx-flow-hash is requested
Symmetric RSS hash requires that:
* No other fields besides IP src/dst and/or L4 src/dst are set
* If src is set, dst must also be set

This restriction was only enforced when RXNFC was configured after
symmetric hash was enabled. In the opposite order of operations (RXNFC
then symmetric enablement) the check was not performed.

Perform the sanity check on set_rxfh as well, by iterating over all flow
types hash fields and making sure they are all symmetric.

Introduce a function that returns whether a flow type is hashable (not
spec only) and needs to be iterated over. To make sure that no one
forgets to update the list of hashable flow types when adding new flow
types, a static assert is added to draw the developer's attention.

The conversion of uapi #defines to enum is not ideal, but as Jakub
mentioned [1], we have precedent for that.

[1] https://lore.kernel.org/netdev/20250324073509.6571ade3@kernel.org/

Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250508103034.885536-1-gal@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-09 16:24:28 -07:00
..
acpi gcc-15: acpi: sprinkle random '__nonstring' crumbles around 2025-04-20 11:57:54 -07:00
asm-generic RISC-V Patches for the 6.15 Merge Window, Part 1 2025-04-04 09:49:17 -07:00
clocksource
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-04-17 12:26:50 -07:00
cxl cxl: Fix devm host device for CXL fwctl initialization 2025-04-18 09:33:04 -07:00
drm Short summary of fixes pull: 2025-04-18 08:38:29 +10:00
dt-bindings Char/Misc/IIO driver updates for 6.15-rc1 2025-04-01 11:26:08 -07:00
hyperv
keys rxrpc: Add YFS RxGK (GSSAPI) security class 2025-04-14 17:36:41 -07:00
kunit kunit: Spelling s/slowm/slow/ 2025-04-08 14:57:24 -06:00
kvm
linux net: enetc: add initial netc-lib driver to support NTMP 2025-05-08 19:43:51 -07:00
math-emu
media
memory
misc
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-05-08 08:59:02 -07:00
pcmcia
ras
rdma RDMA/mlx5: Fix compilation warning when USER_ACCESS isn't set 2025-04-07 15:14:34 -03:00
rv
scsi
soc soc: driver updates for 6.15, part 1 2025-03-27 09:05:55 -07:00
sound ASoC: Fixes for v6.15 2025-05-01 10:22:20 +02:00
target
trace Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-05-08 08:59:02 -07:00
uapi ethtool: Block setting of symmetric RSS when non-symmetric rx-flow-hash is requested 2025-05-09 16:24:28 -07:00
ufs scsi: ufs: Introduce quirk to extend PA_HIBERN8TIME for UFS devices 2025-04-11 22:13:00 -04:00
vdso vdso: Address variable shadowing in macros 2025-04-10 11:07:10 +02:00
video
xen
Kbuild