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[SCSI] aacraid: expose physical devices for models with newer firmware 

The default driver setting is "expose_physicals=0", which means raw
physical drives are not exposed to OS.  If the user wants to expose
connected physical drives, enable "expose_physicals" module parameter.
With the new JBOD firmware, physical drives are not available for
"expose_physicals>0".  In function "aac_expose_phy_device", modified
to reset the appropriate bit in the first byte of inquiry data.  This
fix exposes the connected physical drives.

Signed-off-by: Mahesh Rajashekhara <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Rajashekhara, Mahesh 2010-05-10 04:12:28 -07:00 committed by James Bottomley
parent 5ca0559409
commit e3cc268fe4
1 changed files with 15 additions and 0 deletions
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15
drivers/scsi/aacraid/aachba.c
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@ -328,6 +328,16 @@ int aac_get_config_status(struct aac_dev *dev, int commit_flag)
return status;
}
static void aac_expose_phy_device(struct scsi_cmnd *scsicmd)
{
char inq_data;
scsi_sg_copy_to_buffer(scsicmd, &inq_data, sizeof(inq_data));
if ((inq_data & 0x20) && (inq_data & 0x1f) == TYPE_DISK) {
inq_data &= 0xdf;
scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
}
}
/**
* aac_get_containers - list containers
* @common: adapter to probe
@ -2573,6 +2583,11 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
scsi_dma_unmap(scsicmd);
/* expose physical device if expose_physicald flag is on */
if (scsicmd->cmnd[0] == INQUIRY && !(scsicmd->cmnd[1] & 0x01)
&& expose_physicals > 0)
aac_expose_phy_device(scsicmd);
/*
* First check the fib status
*/