> -----Original Message-----
> From: [email protected] <[email protected]>
> Sent: Monday, August 5, 2024 7:38 PM
> To: KY Srinivasan <[email protected]>; Haiyang Zhang
> <[email protected]>; Wei Liu <[email protected]>; Dexuan Cui
> <[email protected]>; David S. Miller <[email protected]>; Eric Dumazet
> <[email protected]>; Jakub Kicinski <[email protected]>; Paolo Abeni
> <[email protected]>; Shradha Gupta <[email protected]>;
> Simon Horman <[email protected]>; Konstantin Taranov
> <[email protected]>; Souradeep Chakrabarti
> <[email protected]>; Erick Archer
> <[email protected]>; [email protected];
> [email protected]; [email protected]; linux-
> [email protected]
> Cc: Long Li <[email protected]>; [email protected]
> Subject: [PATCH net] net: mana: Fix doorbell out of order violation and
> avoid unnecessary doorbell rings
>
> From: Long Li <[email protected]>
>
> After napi_complete_done() is called, another NAPI may be running on
> another CPU and ring the doorbell before the current CPU does. When
> combined with unnecessary rings when there is no need to ARM the CQ, this
> triggers error paths in the hardware.
>
> Fix this by always ring the doorbell in sequence and avoid unnecessary
> rings.
>
> Cc: [email protected]
> Fixes: e1b5683ff62e ("net: mana: Move NAPI from EQ to CQ")
> Signed-off-by: Long Li <[email protected]>
Reviewed-by: Haiyang Zhang <[email protected]>
Thank you.
