From: Mark Lord <liml@rtr.ca>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: IDE/ATA development list <linux-ide@vger.kernel.org>
Subject: Re: [PATCH 13/14] sata_mv No soft resets
Date: Sat, 26 Jan 2008 10:21:55 -0500 [thread overview]
Message-ID: <479B5013.10500@rtr.ca> (raw)
In-Reply-To: <479AB6DE.1020304@pobox.com>
Jeff Garzik wrote:
> Mark Lord wrote:
>> sata_mv No soft resets.
>>
>> Soft resets rarely have significant effect with these chips,
>> so always do a hard reset instead.
>>
>> Signed-off-by: Mark Lord <mlord@pobox.com>
>>
>> --- old/drivers/ata/sata_mv.c 2008-01-24 14:49:28.000000000 -0500
>> +++ new/drivers/ata/sata_mv.c 2008-01-24 14:51:53.000000000 -0500
>> @@ -2414,8 +2414,7 @@
>>
>> static void mv_error_handler(struct ata_port *ap)
>> {
>> - ata_do_eh(ap, mv_prereset, ata_std_softreset,
>> - mv_hardreset, mv_postreset);
>> + ata_do_eh(ap, mv_prereset, NULL, mv_hardreset, mv_postreset);
>> }
>
> Can you give a bit more explanation?
..
When I hit the existing EH, the system locks up.
When I remove the ata_std_softreset from that line,
it no longer locks up.
It still does have other issues, though, so you could drop
that patch for now, and I'll reissue it when I get round to
fixing that particularly horribly broken part of the driver later.
Cheers
next prev parent reply other threads:[~2008-01-26 15:21 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-24 20:56 [PATCH 00/12] sata_mv NCQ support Mark Lord
2008-01-24 20:57 ` [PATCH 01/14] sata_mv EH fixes Mark Lord
2008-01-26 4:09 ` Jeff Garzik
2008-01-24 20:57 ` [PATCH 02/14] sata_mv Mask transient IRQs Mark Lord
2008-01-26 4:10 ` Jeff Garzik
2008-01-26 15:11 ` Mark Lord
2008-01-24 20:58 ` [PATCH 03/14] sata_mv Clear queue indexes on chip restart Mark Lord
2008-01-24 20:59 ` [PATCH 04/14] sata_mv rename base to port_mmio Mark Lord
2008-01-26 4:11 ` Jeff Garzik
2008-01-24 20:59 ` [PATCH 05/14] sata_mv Fix EDMA configuration Mark Lord
2008-01-26 4:17 ` Jeff Garzik
2008-01-26 15:12 ` Mark Lord
2008-01-24 21:00 ` [PATCH 06/14] sata_mv Add want_ncq parameter for " Mark Lord
2008-01-26 4:18 ` Jeff Garzik
2008-01-24 21:00 ` [PATCH 07/14] sata_mv Use hqtag instead of ioid Mark Lord
2008-01-26 4:19 ` Jeff Garzik
2008-01-26 15:14 ` Mark Lord
2008-01-24 21:01 ` [PATCH 08/14] sata_mv Ignore response status LSB on NCQ Mark Lord
2008-01-24 21:01 ` [PATCH 09/14] sata_mv Restrict max_sectors to 8-bits on GenII NCQ Mark Lord
2008-01-26 4:21 ` Jeff Garzik
2008-01-24 21:02 ` [PATCH 10/14] sata_mv Use DMA memory pools for hardware memory tables Mark Lord
2008-01-26 4:25 ` Jeff Garzik
2008-01-26 15:18 ` Mark Lord
2008-01-26 15:30 ` Mark Lord
2008-01-26 15:45 ` Jeff Garzik
2008-01-26 18:27 ` Mark Lord
2008-01-26 15:20 ` Mark Lord
2008-01-24 21:02 ` [PATCH 11/12] sata_mv Introduce per-tag SG tables Mark Lord
2008-01-26 4:26 ` Jeff Garzik
2008-01-24 21:03 ` [PATCH 12/14] sata_mv Enable NCQ operation Mark Lord
2008-01-26 4:26 ` Jeff Garzik
2008-01-24 21:03 ` [PATCH 13/14] sata_mv No soft resets Mark Lord
2008-01-26 4:28 ` Jeff Garzik
2008-01-26 15:21 ` Mark Lord [this message]
2008-01-24 21:04 ` [PATCH 14/14] sata_mv Comments and version bump Mark Lord
2008-01-25 19:38 ` [PATCH 14/14] sata_mv Comments and version bump (v.2) Mark Lord
2008-01-24 21:06 ` [PATCH 00/12] sata_mv NCQ support Mark Lord
2008-01-25 0:04 ` [PATCH 15/14] " Mark Lord
2008-01-25 0:08 ` Tejun Heo
2008-01-26 4:28 ` Jeff Garzik
2008-01-26 4:14 ` [PATCH 00/12] " Jeff Garzik
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