From: Tejun Heo <htejun@gmail.com>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: alan@lxorguk.ukuu.org.uk, albertcc@tw.ibm.com, linux-ide@vger.kernel.org
Subject: Re: [PATCH 13/15] libata: add 1s sleep between resets
Date: Sun, 02 Apr 2006 10:07:34 +0900 [thread overview]
Message-ID: <442F23D6.6030703@gmail.com> (raw)
In-Reply-To: <442EDB0C.4030103@pobox.com>
Jeff Garzik wrote:
> Tejun Heo wrote:
>> Some devices react badly if resets are performed back-to-back. Give
>> devices some time to breath.
>>
>> Signed-off-by: Tejun Heo <htejun@gmail.com>
>>
>> ---
>>
>> drivers/scsi/libata-core.c | 2 ++
>> 1 files changed, 2 insertions(+), 0 deletions(-)
>>
>> e7f505c001fd4cb43b8123387285a7694790b4ae
>> diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
>> index 30ee203..bd9ca3b 100644
>> --- a/drivers/scsi/libata-core.c
>> +++ b/drivers/scsi/libata-core.c
>> @@ -2633,6 +2633,7 @@ int ata_drive_probe_reset(struct ata_por
>> rc = ata_do_reset(ap, softreset, postreset, 0, classes);
>> if (rc == 0 && classes[0] != ATA_DEV_UNKNOWN)
>> goto done;
>> + ssleep(1);
>> }
>>
>> if (!hardreset)
>> @@ -2649,6 +2650,7 @@ int ata_drive_probe_reset(struct ata_por
>>
>> if (ata_down_sata_spd_limit(ap, &ap->device[0]))
>> goto done;
>> + ssleep(1);
>
> My gut says it should be at least 5 seconds...
>
Okay. And I'll add a little message such that the user staring at the
console doesn't get bored during that 5 secs.
--
tejun
next prev parent reply other threads:[~2006-04-02 1:07 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-31 16:38 [PATCHSET] libata: improve ata_bus_probe failure handling Tejun Heo
2006-03-31 16:38 ` [PATCH 04/15] libata: convert do_probe_reset() to ata_do_reset() Tejun Heo
2006-03-31 16:38 ` [PATCH 01/15] libata: fix ata_set_mode() return value Tejun Heo
2006-04-01 17:34 ` Jeff Garzik
2006-03-31 16:38 ` [PATCH 03/15] libata: separate out ata_spd_string() Tejun Heo
2006-03-31 16:38 ` [PATCH 02/15] libata: make ata_bus_probe() return negative errno on failure Tejun Heo
2006-03-31 16:38 ` [PATCH 11/15] libata: preserve SATA SPD setting over hard resets Tejun Heo
2006-04-01 19:52 ` Jeff Garzik
2006-03-31 16:38 ` [PATCH 07/15] libata: reorganize ata_set_mode() Tejun Heo
2006-03-31 16:38 ` [PATCH 09/15] libata: implement ata_down_xfermask_limit() Tejun Heo
2006-03-31 22:31 ` Alan Cox
2006-04-01 0:11 ` Tejun Heo
2006-04-01 19:47 ` Jeff Garzik
2006-04-02 0:55 ` Tejun Heo
2006-04-02 6:58 ` Tejun Heo
2006-04-02 8:07 ` Jeff Garzik
2006-03-31 16:38 ` [PATCH 10/15] libata: add dev->sata_spd_limit and helpers Tejun Heo
2006-04-01 19:51 ` Jeff Garzik
2006-04-02 1:00 ` Tejun Heo
2006-04-02 8:12 ` Jeff Garzik
2006-03-31 16:38 ` [PATCH 08/15] libata: don't disable devices from ata_set_mode() Tejun Heo
2006-04-01 19:46 ` Jeff Garzik
2006-03-31 16:38 ` [PATCH 05/15] libata: implement ata_dev_enabled and disabled() Tejun Heo
2006-04-01 17:29 ` Jeff Garzik
2006-04-02 0:54 ` Tejun Heo
2006-03-31 16:38 ` [PATCH 06/15] libata: make ata_set_mode() handle no-device case properly Tejun Heo
2006-03-31 16:38 ` [PATCH 12/15] libata: use SATA speeding down in ata_drive_probe_reset() Tejun Heo
2006-04-01 19:56 ` Jeff Garzik
2006-04-02 1:05 ` Tejun Heo
2006-03-31 16:38 ` [PATCH 13/15] libata: add 1s sleep between resets Tejun Heo
2006-04-01 19:57 ` Jeff Garzik
2006-04-02 1:07 ` Tejun Heo [this message]
2006-03-31 16:38 ` [PATCH 14/15] libata: improve ata_bus_probe() Tejun Heo
2006-04-01 19:58 ` Jeff Garzik
2006-03-31 16:38 ` [PATCH 15/15] libata: consider disabled devices in ata_dev_xfermask() Tejun Heo
2006-04-01 20:00 ` Jeff Garzik
2006-04-02 1:09 ` Tejun Heo
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