From: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
To: "Jeff Garzik" <jeff@garzik.org>, "FUJITA Tomonori" <tomof@acm.org>
Cc: <akpm@linux-foundation.org>, <linux-kernel@vger.kernel.org>,
<linux-scsi@vger.kernel.org>, <James.Bottomley@SteelEye.com>,
"AACRAID" <aacraid@adaptec.com>, <fujita.tomonori@lab.ntt.co.jp>
Subject: RE: [PATCH -mm 11/11] aacraid: use pci_set_dma_max_seg_size
Date: Wed, 24 Oct 2007 09:34:25 -0400 [thread overview]
Message-ID: <AE4F746F2AECFC4DA4AADD66A1DFEF01F3DAB5@otce2k301.adaptec.com> (raw)
In-Reply-To: <471F2D12.50006@garzik.org>
Jeff Garzik [mailto:jeff@garzik.org] writes:
> is this needed, given that the default is already 65536?
Apparently so, as we had to add it in the past, mainly because the
feature to limit was not part of the SCSI layer when the original limit
code was added. At that time it replaced a complicated sg breakup
algorithm.
Does your statement guarantee that the default will not change to a
large value? If not, then we need to enforce it in perpetuity...
Sincerely -- Mark Salyzyn
next prev parent reply other threads:[~2007-10-24 13:34 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-24 10:47 [PATCH -mm 0/11] fix iommu sg merging problem FUJITA Tomonori
2007-10-24 10:48 ` [PATCH -mm 01/11] add device_dma_parameters structure FUJITA Tomonori
2007-10-24 11:33 ` Jeff Garzik
2007-10-24 10:48 ` [PATCH -mm 02/11] PCI: add device_dma_parameters support FUJITA Tomonori
2007-10-24 11:34 ` Jeff Garzik
2007-10-24 13:41 ` FUJITA Tomonori
2007-10-24 10:48 ` [PATCH -mm 03/11] x86: make pci-gart iommu respect the segment size limits FUJITA Tomonori
2007-10-24 10:48 ` [PATCH -mm 04/11] ppc: make " FUJITA Tomonori
2007-10-24 10:48 ` [PATCH -mm 05/11] IA64: make sba_iommu " FUJITA Tomonori
2007-10-24 10:48 ` [PATCH -mm 06/11] alpha: make pci_iommu " FUJITA Tomonori
2007-10-24 10:48 ` [PATCH -mm 07/11] sparc64: make iommu " FUJITA Tomonori
2007-10-24 10:48 ` [PATCH -mm 08/11] parisc: " FUJITA Tomonori
2007-10-24 11:35 ` Jeff Garzik
2007-10-24 10:48 ` [PATCH -mm 09/11] call blk_queue_segment_boundary in __scsi_alloc_queue FUJITA Tomonori
2007-10-24 11:39 ` Jeff Garzik
2007-10-24 14:15 ` FUJITA Tomonori
2007-10-24 14:28 ` Jens Axboe
2007-10-24 14:36 ` FUJITA Tomonori
2007-10-24 14:34 ` Jeff Garzik
2007-10-24 10:48 ` [PATCH -mm 10/11] sata_inic162x: use pci_set_dma_max_seg_size FUJITA Tomonori
2007-10-24 11:39 ` Jeff Garzik
2007-10-24 10:48 ` [PATCH -mm 11/11] aacraid: " FUJITA Tomonori
2007-10-24 11:31 ` Jeff Garzik
2007-10-24 11:35 ` FUJITA Tomonori
2007-10-24 13:34 ` Salyzyn, Mark [this message]
2007-10-24 13:34 ` Salyzyn, Mark
2007-10-24 16:21 ` FUJITA Tomonori
2007-10-24 16:25 ` Salyzyn, Mark
2007-10-24 11:40 ` [PATCH -mm 0/11] fix iommu sg merging problem Jeff Garzik
2007-10-24 14:32 ` FUJITA Tomonori
2007-10-24 13:24 ` Jens Axboe
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