From: "saeed bishara" <saeed.bishara@gmail.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org,
neilb@suse.de, akpm@linux-foundation.org, davem@davemloft.net,
christopher.leech@intel.com, shannon.nelson@intel.com,
herbert@gondor.apana.org.au, jeff@garzik.org
Subject: Re: [md-accel PATCH 16/19] dmaengine: driver for the iop32x, iop33x, and iop13xx raid engines
Date: Mon, 27 Aug 2007 16:14:13 +0300 [thread overview]
Message-ID: <c70ff3ad0708270614t6f17b38nfbdf84ace69b8d78@mail.gmail.com> (raw)
In-Reply-To: <c70ff3ad0708270611x5598fa9dlc3afa5f6fabd6563@mail.gmail.com>
Hi Dan,
I think you have a bug in this function, the list_splice_init adds the
new slots in the head of the chain_node, but you get the
old_chain_tail (latest descriptor) from the tail of the chain!!
> +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);
> +
next prev parent reply other threads:[~2007-08-27 13:14 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-27 1:50 [md-accel PATCH 00/19] md raid acceleration and the async_tx api Dan Williams
2007-06-27 1:50 ` [md-accel PATCH 01/19] dmaengine: refactor dmaengine around dma_async_tx_descriptor Dan Williams
2007-06-27 1:50 ` [md-accel PATCH 02/19] dmaengine: make clients responsible for managing channels Dan Williams
2007-06-27 1:50 ` [md-accel PATCH 03/19] xor: make 'xor_blocks' a library routine for use with async_tx Dan Williams
2007-06-27 6:39 ` Satyam Sharma
2007-06-27 16:13 ` Dan Williams
2007-06-27 16:22 ` Herbert Xu
2007-06-27 1:50 ` [md-accel PATCH 04/19] async_tx: add the async_tx api Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 05/19] raid5: refactor handle_stripe5 and handle_stripe6 (v2) Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 06/19] raid5: replace custom debug PRINTKs with standard pr_debug Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 07/19] md: raid5_run_ops - run stripe operations outside sh->lock Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 08/19] md: common infrastructure for running operations with raid5_run_ops Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 09/19] md: handle_stripe5 - add request/completion logic for async write ops Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 10/19] md: handle_stripe5 - add request/completion logic for async compute ops Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 11/19] md: handle_stripe5 - add request/completion logic for async check ops Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 12/19] md: handle_stripe5 - add request/completion logic for async read ops Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 13/19] md: handle_stripe5 - add request/completion logic for async expand ops Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 14/19] md: handle_stripe5 - request io processing in raid5_run_ops Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 15/19] md: remove raid5 compute_block and compute_parity5 Dan Williams
2007-06-27 1:51 ` [md-accel PATCH 16/19] dmaengine: driver for the iop32x, iop33x, and iop13xx raid engines Dan Williams
2007-08-27 13:11 ` saeed bishara
2007-08-27 13:14 ` saeed bishara [this message]
2007-08-27 19:31 ` Williams, Dan J
2007-08-30 18:43 ` saeed bishara
2007-08-30 20:41 ` Dan Williams
2007-06-27 1:52 ` [md-accel PATCH 17/19] iop13xx: surface the iop13xx adma units to the iop-adma driver Dan Williams
2007-06-27 1:52 ` [md-accel PATCH 18/19] iop3xx: surface the iop3xx DMA and AAU " Dan Williams
2007-06-27 1:52 ` [md-accel PATCH 19/19] ARM: Add drivers/dma to arch/arm/Kconfig Dan Williams
2007-06-27 3:49 ` [md-accel PATCH 00/19] md raid acceleration and the async_tx api Mr. James W. Laferriere
2007-06-27 4:02 ` Dan Williams
2007-06-27 16:45 ` Bill Davidsen
2007-06-27 17:09 ` Williams, Dan J
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