[PATCH v3 2/2] ata: Fix the dma state machine lockup for the IDENTIFY DEVICE PIO mode command.

[Tejun Heo]

On Thu, Jun 19, 2014 at 12:20:54PM +0530, Suman Tripathi wrote:
> +	/*
> +	 * Restart the dma engine if the last cmd issued
> +	 * is IDENTIFY DEVICE command
> +	 */
> +	if (unlikely(ctx->last_cmd[ap->port_no] == ATA_CMD_ID_ATA))
> +		ahci_restart_engine(ap);

Is it really only for IDENTIFY?  Are other PIO commands okay?  The
previous version applied it to all PIO commands, right?

-- 
tejun