Subject: [PATCH v2] ahci_xgene: Fix the dma state machine lockup for the ATA_CMD_SMART PIO mode command.

From: [email-masked] (Sergei Shtylyov)
Date: Mon, 02 Feb 2015 20:07:53 +0300

Hello.

On 02/02/2015 02:57 PM, Suman Tripathi wrote:

> This patch addresses the issue with ATA_CMD_SMART pio mode
> command for enumeration and device detection with ATA devices.
> The X-Gene AHCI controller has an errata in which it cannot clear
> the BSY bit after the PIO setup FIS. The dma state machine enters
> CMFatalErrorUpdate state and locks up. It is the same issue as
> in the commit 2a0bdff6b958d1b2523d2754b6cd5e0ea4053016(fix the

    You forgot a space before '('.

> dma state machine lockup for the IDENTIFY DEVICE PIO mode
> command).

    Actually, the summary is "ahci_xgene: fix the dma state machine lockup for 
the IDENTIFY DEVICE PIO mode command.", i.e. yours is missing a prefix.

[...]

> Signed-off-by: Suman Tripathi <[email-masked]>
> Reported-by:   Mark Langsdorf <[email-masked]>

MBR, Sergei