lkml.org 
[lkml]   [2006]   [Jan]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRE: RAID controller safety
--- Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> On Gwe, 2006-01-06 at 09:33 -0500, Salyzyn, Mark wrote:
> > The dpt_i2o driver (which is a scsi driver) accepts the
> > SYNCHRONIZE_CACHE scsi command and passes it off to the firmware. The
> > firmware respects this and flushes all the outstanding (cached)
> > commands. This is true in all (kernel.org or Adaptec latest) versions.
>
> In which case it should be fine and correct with the generic i2o_scsi as
> well as that will pass through SCSI command requests directly. i2o_block
> doesn't know about converting any incoming cache flush to an i2o command
> block so might not.
>
> Alan
>

Won't the i2o_block driver use i2o_block_device_flush to flush the devices' cache (by issuing a
I2O_CMD_BLOCK_CFLUSH), or this this function used in some very different context?

Oddly enough, I see I2O_CMD_BLOCK_CFLISH #define'd to 0x37 in both the i2o driver
(include/linux/i2o.h), AND in the dpt driver (drivers/scsi/dpt/dpti_i2o.h). However, I do not see
the dpt driver using this value anywhere.

-Kenny




__________________________________________
Yahoo! DSL – Something to write home about.
Just $16.99/mo. or less.
dsl.yahoo.com

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-01-06 16:21    [W:0.193 / U:0.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site