[dpdk-dev] [PATCH v3] net/mlx4: fix dev rmv not detected after port stop

Shahaf Shuler shahafs at mellanox.com
Mon Jan 29 11:54:16 CET 2018


Mordechay Haimovsky, Monday, January 29, 2018 10:35 AM:
> In failsafe device start can be called for ports/devices that had been plugged
> out.
> The mlx4 PMD detects device removal by listening to the device RMV events,
> when the mlx4 port is being stopped, the PMD no longer listens to these
> events causing the PMD to stop detecting device removals.
> This patch fixes this issue by moving installation of the interrupt handler to
> device configuration, and toggle only the Rx-queue interrupts on start/stop.
> 
> Fixes: a6e8b01c3c26 ("net/mlx4: compact interrupt functions")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Moti Haimovsky <motih at mellanox.com>
> ---
> V3:
> Modifications according to review inputs from Shahaf Shuler
> See: 1516357009-15463-1-git-send-email-motih at mellanox.com
> 
> V2:
> Fixed commit message.
> ---
> 
>  drivers/net/mlx4/mlx4.c      | 10 ++++++++--
>  drivers/net/mlx4/mlx4.h      |  2 ++
>  drivers/net/mlx4/mlx4_intr.c | 41
> ++++++++++++++++++++++++++++++++++++++---
>  3 files changed, 48 insertions(+), 5 deletions(-)
> 

Acked-by: Shahaf Shuler <shahafs at mellanox.com> 

Adrien - let me know if you see issues with this patch, I want to include it on RC2.



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