linux-kernel - RE: [PATCH 3/4] async_tx: replace 'int_en' with operation preparationflags

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Message-ID: <7F38996F7185A24AB9071ED4950AD8C1FAED31@swsmsx413.ger.corp.intel.com>
Date:	Mon, 7 Jan 2008 16:59:23 -0000
From:	"Sosnowski, Maciej" <maciej.sosnowski@...el.com>
To:	"Williams, Dan J" <dan.j.williams@...el.com>
Cc:	<linux-kernel@...r.kernel.org>,
	"Nelson, Shannon" <shannon.nelson@...el.com>, <yur@...raft.com>,
	<hskinnemoen@...el.com>, <olof@...om.net>,
	<wei.zhang@...escale.com>
Subject: RE: [PATCH 3/4] async_tx: replace 'int_en' with operation preparationflags

>From: Williams, Dan J 
>
>Pass a full set of flags to drivers' per-operation 'prep' routines.
>Currently the only flag passed is DMA_PREP_INTERRUPT.  The 
>expectation is
>that arch-specific async_tx_find_channel() implementations can 
>exploit this
>capability to find the best channel for an operation.
>
>Signed-off-by: Dan Williams <dan.j.williams@...el.com>
>---
>
> crypto/async_tx/async_memcpy.c         |    3 ++-
> crypto/async_tx/async_memset.c         |    3 ++-
> crypto/async_tx/async_xor.c            |   10 ++++++----
> drivers/dma/ioat_dma.c                 |    4 ++--
> drivers/dma/iop-adma.c                 |   20 ++++++++++----------
> include/asm-arm/arch-iop13xx/adma.h    |   18 ++++++++++--------
> include/asm-arm/hardware/iop3xx-adma.h |   30 
>+++++++++++++++++-------------
> include/linux/dmaengine.h              |   17 +++++++++++++----
> 8 files changed, 62 insertions(+), 43 deletions(-)

As ioat_dma is not using int_en right now, this change does not impact
the driver at the moment and may be definitely useful later.

Maciej Sosnowski

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