From: Guenter Roeck <linux@roeck-us.net>
To: Christoph Hellwig <hch@lst.de>
Cc: iommu@lists.linux-foundation.org,
Robin Murphy <robin.murphy@arm.com>,
Vineet Gupta <vgupta@synopsys.com>,
"Matwey V. Kornilov" <matwey@sai.msu.ru>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
linux-snps-arc@lists.infradead.org,
Ezequiel Garcia <ezequiel@collabora.com>,
linux-media@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
dri-devel@lists.freedesktop.org, sparclinux@vger.kernel.org,
openrisc@lists.librecores.org, linux-parisc@vger.kernel.org,
linux-mips@vger.kernel.org
Subject: Re: [PATCH 3/6] sparc: remove the sparc32_dma_ops indirection
Date: Fri, 14 Dec 2018 22:30:18 -0800 [thread overview]
Message-ID: <20181215063018.GA11415@roeck-us.net> (raw)
In-Reply-To: <20181208174115.16237-4-hch@lst.de>
On Sat, Dec 08, 2018 at 09:41:12AM -0800, Christoph Hellwig wrote:
> There is no good reason to have a double indirection for the sparc32
> dma ops, so remove the sparc32_dma_ops and define separate dma_map_ops
> instance for the different IOMMU types.
>
Except maybe this:
scsi host0: esp
scsi host0: Data transfer overflow.
scsi host0: cur_residue[0] tot_residue[-36] len[36]
scsi 0:0:0:0: Direct-Access QEMU QEMU HARDDISK 2.5+ PQ: 0 ANSI: 5
scsi target0:0:0: Beginning Domain Validation
scsi host0: Data transfer overflow.
scsi host0: cur_residue[0] tot_residue[-36] len[36]
scsi host0: Data transfer overflow.
scsi host0: cur_residue[0] tot_residue[-36] len[36]
scsi host0: Data transfer overflow.
scsi host0: cur_residue[0] tot_residue[-36] len[36]
scsi host0: Data transfer overflow.
scsi host0: cur_residue[0] tot_residue[-36] len[36]
and so on, until qemu is terminated. This is seen with all sparc32
qemu emulations. Reverting the patch fixes the problem.
Guenter
next prev parent reply other threads:[~2018-12-15 6:30 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-08 17:41 make the non-consistent DMA allocator more userful (resend) Christoph Hellwig
2018-12-08 17:41 ` [PATCH 1/6] sparc: remove no needed sbus_dma_ops methods Christoph Hellwig
2018-12-09 4:57 ` David Miller
2018-12-08 17:41 ` [PATCH 2/6] sparc: factor the dma coherent mapping into helper Christoph Hellwig
2018-12-09 4:57 ` David Miller
2018-12-08 17:41 ` [PATCH 3/6] sparc: remove the sparc32_dma_ops indirection Christoph Hellwig
2018-12-09 4:57 ` David Miller
2018-12-15 6:30 ` Guenter Roeck [this message]
2018-12-15 10:47 ` Christoph Hellwig
2018-12-15 14:57 ` Guenter Roeck
2018-12-08 17:41 ` [PATCH 4/6] sparc: remove not required includes from dma-mapping.h Christoph Hellwig
2018-12-09 4:57 ` David Miller
2018-12-08 17:41 ` [PATCH 5/6] sparc: move the leon PCI memory space comment to <asm/leon.h> Christoph Hellwig
2018-12-09 4:58 ` David Miller
2018-12-08 17:41 ` [PATCH 6/6] sparc: merge 32-bit and 64-bit version of pci.h Christoph Hellwig
2018-12-09 4:58 ` David Miller
2018-12-10 16:32 ` Christoph Hellwig
2018-12-10 18:10 ` David Miller
2018-12-10 19:22 ` Christoph Hellwig
2018-12-10 19:33 ` David Miller
2018-12-11 13:46 ` Christoph Hellwig
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