igb: Fix trigger of incorrect irq in igb_xsk_wakeup
The current implementation in the igb_xsk_wakeup expects the Rx and Tx queues
to share the same irq. This would lead to triggering of incorrect irq
in split irq configuration.
This patch addresses this issue which could impact environments
with 2 active cpu cores
or when the number of queues is reduced to 2 or less
cat /proc/interrupts | grep eno2
167: 0 0 0 0 IR-PCI-MSIX-0000:08:00.0
0-edge eno2
168: 0 0 0 0 IR-PCI-MSIX-0000:08:00.0
1-edge eno2-rx-0
169: 0 0 0 0 IR-PCI-MSIX-0000:08:00.0
2-edge eno2-rx-1
170: 0 0 0 0 IR-PCI-MSIX-0000:08:00.0
3-edge eno2-tx-0
171: 0 0 0 0 IR-PCI-MSIX-0000:08:00.0
4-edge eno2-tx-1
Furthermore it uses the flags input argument to trigger either rx, tx or
both rx and tx irqs as specified in the ndo_xsk_wakeup api documentation
Fixes: 80f6ccf9f116 ("igb: Introduce XSK data structures and helpers")
Signed-off-by: Vivek Behera <vivek.behera@siemens.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
2 files changed
