Re: [PATCH v3 0/1] aacraid: Host adapter Adaptec 6405 constantly resets under high io load

Christian Großegger
2024-11-02T12:26:26Z

On October 30, 2024, at 16:01, Dirk Tilger wrote:
> I had set "msi" to "2" and the problem persisted. I have not tested
> msi=1 but as far as I understand it should have the same effect with
> regards to the system hangs.

Hi,

Yes, as far as I understand, setting msi is not enough, because when I
look at the code the host->can_queue variable is set to the wrong value
for the Series-6 Card since Commit 395e5df79a95 ("scsi: aacraid: Remove
reference to Series-9").

Before the patch the driver uses the lower 16 bits of status[3] as the
maximum number of outstanding FIBs allowed by the Series-6 controller.
After the patch is uses the upper 16 bits of status[3]. (comminit.c:581)

Kind regards,
Christian