On Mon, Feb 23, 2026 at 01:51:57PM +0100, Michal Swiatkowski wrote:
> When allocating netdevice using alloc_etherdev_mqs() the maximum
> supported queues number should be passed. The vsi->alloc_txq/rxq is
> storing current number of queues, not the maximum ones.
>
> Use the same function for getting max Tx and Rx queues which is used
> during ethtool -l call to set maximum number of queues during netdev
> allocation.
>
> Reproduction steps:
> $ethtool -l $pf # says current 16, max 64
> $ethtool -S $pf # fine
> $ethtool -L $pf combined 40 # crash
>
> [491187.472594] Call Trace:
> [491187.472829] <TASK>
> [491187.473067] netif_set_xps_queue+0x26/0x40
> [491187.473305] ice_vsi_cfg_txq+0x265/0x3d0 [ice]
> [491187.473619] ice_vsi_cfg_lan_txqs+0x68/0xa0 [ice]
> [491187.473918] ice_vsi_cfg_lan+0x2b/0xa0 [ice]
> [491187.474202] ice_vsi_open+0x71/0x170 [ice]
> [491187.474484] ice_vsi_recfg_qs+0x17f/0x230 [ice]
> [491187.474759] ? dev_get_min_mp_channel_count+0xab/0xd0
> [491187.474987] ice_set_channels+0x185/0x3d0 [ice]
> [491187.475278] ethnl_set_channels+0x26f/0x340
>
> Fixes: ee13aa1a2c5a ("ice: use netif_get_num_default_rss_queues()")
> Reviewed-by: Przemek Kitszel <[email protected]>
> Signed-off-by: Michal Swiatkowski <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
