linux-kernel - Re: [PATCH] ioatdma: allow all channels to have irq coalescing support

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Date:	Thu, 7 Mar 2013 17:58:51 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Dan Williams <djbw@...com>
Cc:	Dave Jiang <dave.jiang@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ioatdma: allow all channels to have irq coalescing
 support

On Tue, Mar 05, 2013 at 10:30:01PM +0000, Dan Williams wrote:
> 
> 
> On 2/26/13 8:20 AM, "Dave Jiang" <dave.jiang@...el.com> wrote:
> 
> >Looks like only the RAID channels are allowed to have irq coalescing
> >support
> >in the existing code. Fixing that. The ioat3 cleanup code can handle
> >memcpy
> >ops anyways
> >
> >Signed-off-by: Dave Jiang <dave.jiang@...el.com>
Applied thanks
> >---
> > drivers/dma/ioat/dma_v3.c |   12 +++---------
> > 1 file changed, 3 insertions(+), 9 deletions(-)
> >
> >diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
> >index 47588dc..368a184 100644
> >--- a/drivers/dma/ioat/dma_v3.c
> >+++ b/drivers/dma/ioat/dma_v3.c
> >@@ -1268,15 +1268,9 @@ int __devinit ioat3_dma_probe(struct
> >ioatdma_device *device, int dca)
> > 	}
> > 
> > 
> >-	if (is_raid_device) {
> >-		dma->device_tx_status = ioat3_tx_status;
> >-		device->cleanup_fn = ioat3_cleanup_event;
> >-		device->timer_fn = ioat3_timer_event;
> >-	} else {
> >-		dma->device_tx_status = ioat_dma_tx_status;
> >-		device->cleanup_fn = ioat2_cleanup_event;
> >-		device->timer_fn = ioat2_timer_event;
> >-	}
> >+	dma->device_tx_status = ioat3_tx_status;
> >+	device->cleanup_fn = ioat3_cleanup_event;
> >+	device->timer_fn = ioat3_timer_event;
> > 
> > 	#ifdef CONFIG_ASYNC_TX_DISABLE_PQ_VAL_DMA
> > 	dma_cap_clear(DMA_PQ_VAL, dma->cap_mask);
> 
> Acked-by: Dan Williams <djbw@...com>
> 
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