From: Jeff Garzik <jeff@garzik.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linux IDE mailing list <linux-ide@vger.kernel.org>
Subject: 32-bit IO to-do item...
Date: Thu, 09 Apr 2009 01:25:40 -0400 [thread overview]
Message-ID: <49DD86D4.3090304@garzik.org> (raw)
Alan,
I keep meaning to mention this (and get it into the mail archive)...
The 32-bit IO patch was incomplete, because it rendered
ATA_IOC_[GS]ET_IO32 handling in ata_sas_scsi_ioctl() -- our base ioctl
handler -- incorrect.
Previously, it simply ensured the ioctls reflected hardcoded 16-bit I/O.
Now, behavior no longer matches what the ioctls report.
At a minimum, drivers probably need to set an "I'm using 32bit I/O"
flag, that the ioctl then reads, replacing ata_sas_scsi_ioctl()'s
assumption that val==0.
Jeff
next reply other threads:[~2009-04-09 5:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-09 5:25 Jeff Garzik [this message]
2009-04-09 8:54 ` 32-bit IO to-do item Alan Cox
2009-04-09 9:48 ` Jeff Garzik
2009-04-09 10:22 ` Alan Cox
2009-04-09 11:03 ` Jeff Garzik
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