ice: Don't allow more channels than LAN MSI-X available

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[ Upstream commit 943b881e35 ]

Currently users could create more channels than LAN MSI-X available.
This is happening because there is no check against pf->num_lan_msix
when checking the max allowed channels and will cause performance issues
if multiple Tx and Rx queues are tied to a single MSI-X. Fix this by not
allowing more channels than LAN MSI-X available in pf->num_lan_msix.

Fixes: 87324e747f ("ice: Implement ethtool ops for channels")
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Brett Creeley 2021-01-21 10:38:05 -08:00 • committed by Greg Kroah-Hartman

parent 55717a10a6

commit 04cd96db6f

1 changed files with 4 additions and 4 deletions

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drivers/net/ethernet/intel/ice/ice_ethtool.c

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