On 11/13/06, Roland Dreier <[EMAIL PROTECTED]> wrote:
> > This is a bug since there are architectures eg PPC64 where the native
> > address size is u64 but dma_addr_t is u32. You are somehow in a
> > problem here, since returning an unchopped cpu_addr to the consumer
> > might cause a memory co
...although one has to think through the implications for
pci_unmap_addr_set() I guess...
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> This is a bug since there are architectures eg PPC64 where the native
> address size is u64 but dma_addr_t is u32. You are somehow in a
> problem here, since returning an unchopped cpu_addr to the consumer
> might cause a memory corruption as they are expecting 32 bit value.
Yes (although pp
On Thu, Nov 02, 2006 at 02:30:26PM -0800, Ralph Campbell wrote:
> +static dma_addr_t ipath_dma_map_single(struct ib_device *dev,
> +void *cpu_addr, size_t size,
> +enum dma_data_direction direction)
> +{
> + BUG_ON(directi
Ralph Campbell wrote:
> IB/ipath - Implement new verbs DMA mapping functions
>
> This patch implements the interposing DMA mapping functions to allow
> support for IOMMUs and remove the dependence on phys_to_virt().
> diff -r f37bd0e41fec drivers/infiniband/hw/ipath/ipath_dma.c
> --- /dev/null Th
On Fri, 3 Nov 2006, Ralph Campbell wrote:
> On Fri, 2006-11-03 at 12:54 -0500, James Lentini wrote:
> > Ralph,
> >
> > Could you add documentation to Documentation/infiniband/ explainin
> > when a ULP needs to use the new verbs DMA mapping functions (what
> > structures/function parameters mu
On Fri, 2006-11-03 at 12:54 -0500, James Lentini wrote:
> Ralph,
>
> Could you add documentation to Documentation/infiniband/ explainin
> when a ULP needs to use the new verbs DMA mapping functions (what
> structures/function parameters must be specified using this API)?
Good idea. I will.
>
Ralph,
Could you add documentation to Documentation/infiniband/ explainin
when a ULP needs to use the new verbs DMA mapping functions (what
structures/function parameters must be specified using this API)?
Did you consider creating a new type, ib_dma_addr_t, and using this
type for the verb
IB/ipath - Implement new verbs DMA mapping functions
This patch implements the interposing DMA mapping functions to allow
support for IOMMUs and remove the dependence on phys_to_virt().
From: Ralph Campbell <[EMAIL PROTECTED]>
diff -r f37bd0e41fec drivers/infiniband/hw/ipath/Makefile
--- a/drive
