From: Thomas Bogendoerfer <tbogendoerfer@suse.de>
To: "Maciej W. Rozycki" <macro@orcam.me.uk>
Cc: Magnus Lindholm <linmag7@gmail.com>,
linux-scsi@vger.kernel.org,
James.Bottomley@hansenpartnership.com,
martin.petersen@oracle.com
Subject: Re: [PATCH v3] scsi: qla1280.c
Date: Tue, 5 Nov 2024 09:33:21 +0100 [thread overview]
Message-ID: <20241105093321.3ad1c1a7@samweis> (raw)
In-Reply-To: <alpine.DEB.2.21.2411042134240.9262@angie.orcam.me.uk>
On Mon, 4 Nov 2024 21:52:36 +0000 (GMT)
"Maciej W. Rozycki" <macro@orcam.me.uk> wrote:
> On Mon, 4 Nov 2024, Magnus Lindholm wrote:
>
> > Use dma_get_required_mask() to determine an acceptable DMA_BIT_MASK
> > since on some platforms, qla1040 cards do not work with a 64-bit
> > mask. For example, on alpha systems with more than 2GB ram a 64-bit DMA mask
> > will result in filesystem corruption, but a 64-bit mask is required on
> > IP30/MIPS.
>
> This is missing the point, you get filesystem corruption because *your
> card* does not support 64-bit DMA addressing and not because your Alpha
> system has an issue with it.
I've checked one of my Octane boards and there are ISP1040B chips on
the board, so even ISP1040B is able to address 64bits.
How does the memory map look for more and 2GB ram on the ES40 ?
Thomas.
--
SUSE Software Solutions Germany GmbH
HRB 36809 (AG Nürnberg)
Geschäftsführer: Ivo Totev, Andrew McDonald, Werner Knoblich
next prev parent reply other threads:[~2024-11-05 8:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-04 20:46 [PATCH v3] scsi: qla1280.c Magnus Lindholm
2024-11-04 21:52 ` Maciej W. Rozycki
2024-11-05 8:33 ` Thomas Bogendoerfer [this message]
2024-11-06 12:48 ` Maciej W. Rozycki
2024-11-05 1:49 ` Martin K. Petersen
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