linux-kernel - Re: [md-accel PATCH 16/19] dmaengine: driver for the iop32x, iop33x, and iop13xx raid engines

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Message-ID: <c70ff3ad0708270611x5598fa9dlc3afa5f6fabd6563@mail.gmail.com>
Date:	Mon, 27 Aug 2007 16:11:10 +0300
From:	"saeed bishara" <saeed.bishara@...il.com>
To:	"Dan Williams" <dan.j.williams@...el.com>
Cc:	linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org,
	neilb@...e.de, akpm@...ux-foundation.org, davem@...emloft.net,
	christopher.leech@...el.com, shannon.nelson@...el.com,
	herbert@...dor.apana.org.au, jeff@...zik.org
Subject: Re: [md-accel PATCH 16/19] dmaengine: driver for the iop32x, iop33x, and iop13xx raid engines

Hi Dan,

> +static dma_cookie_t
> +iop_adma_tx_submit(struct dma_async_tx_descriptor *tx)
> +{
> +
> +       old_chain_tail = list_entry(iop_chan->chain.prev,
> +               struct iop_adma_desc_slot, chain_node);
> +       list_splice_init(&sw_desc->group_list, &old_chain_tail->chain_node);
> +
> +       /* fix up the hardware chain */
> +       iop_desc_set_next_desc(old_chain_tail, grp_start->phys);
> +
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