diff options
| author | Rajashekhara, Mahesh <Mahesh_Rajashekhara@adaptec.com> | 2010-05-10 04:12:28 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-05-16 22:35:54 -0400 |
| commit | e3cc268fe4a0ad1cbefbc53cee35c80281e609b8 (patch) | |
| tree | 2a01479de6fc10141975e14674060f43adec5e59 /drivers/scsi/aacraid | |
| parent | 5ca05594097438f81337e53ad50c2d17ffc28238 (diff) | |
| download | lwn-e3cc268fe4a0ad1cbefbc53cee35c80281e609b8.tar.gz lwn-e3cc268fe4a0ad1cbefbc53cee35c80281e609b8.zip | |
[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>
Diffstat (limited to 'drivers/scsi/aacraid')
| -rw-r--r-- | drivers/scsi/aacraid/aachba.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 7e26ebc26661..24b1ba06ece4 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -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 */ |