[PATCH] net/mlx5: fix the delay drop bit set overflow

[Raslan Darawsheh]

Hi,


> -----Original Message-----
> From: Bing Zhao <bingz at nvidia.com>
> Sent: Friday, November 12, 2021 4:39 PM
> To: Slava Ovsiienko <viacheslavo at nvidia.com>; Matan Azrad
> <matan at nvidia.com>
> Cc: dev at dpdk.org; Raslan Darawsheh <rasland at nvidia.com>
> Subject: [PATCH] net/mlx5: fix the delay drop bit set overflow
> 
> The attribute to record the global control of hairpin queues' delay drop was
> defined as a bit-field with one bit, and the intention was to reduce the
> memory overhead. In the meanwhile, the macro was defined as an
> enumerated value 0x2.
> 
> No matter what value inputted via devarg, the lowest bit was always zero
> and the higher bits would be ignored. For hairpin queues, the delay drop
> attribute couldn't be enabled.
> 
> With the commit, the double logical negation is used to fix this.
> 
> Fixes: febcac7b46cd ("net/mlx5: support Rx queue delay drop")
> 
> Signed-off-by: Bing Zhao <bingz at nvidia.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>

Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh