netdev - Re: [PATCH mlx5-next 2/2] net/mlx5: Add FPGA QP error event

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Message-ID: <da8acf8e4a2c976fd3ce4f8e17a969b3464fd263.camel@mellanox.com>
Date:   Wed, 30 May 2018 15:14:20 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "andrew@...n.ch" <andrew@...n.ch>
CC:     Jason Gunthorpe <jgg@...lanox.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Ilan Tayari <ilant@...lanox.com>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        Leon Romanovsky <leonro@...lanox.com>,
        Adi Nissim <adin@...lanox.com>
Subject: Re: [PATCH mlx5-next 2/2] net/mlx5: Add FPGA QP error event

On Wed, 2018-05-30 at 03:07 +0200, Andrew Lunn wrote:
> On Tue, May 29, 2018 at 05:19:54PM -0700, Saeed Mahameed wrote:
> > From: Ilan Tayari <ilant@...lanox.com>
> > 
> > The FPGA QP event fires whenever a QP on the FPGA trasitions
> > to the error state.
> 
> FPGA i know, field programmable gate array. Could you offer some clue
> as to what QP means?
> 

Hi Andre, QP "Queue Pair" is well known rdma concept, and widely used
in mlx drivers, it is used as in the driver as a ring buffer to
communicate with the FPGA device.
 
>    Thanks
> 	Andrew