linux/drivers/scsi/ses.c

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[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
/*
* SCSI Enclosure Services
*
* Copyright (C) 2008 James Bottomley <James.Bottomley@HansenPartnership.com>
*
**-----------------------------------------------------------------------------
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License
** version 2 as published by the Free Software Foundation.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
**-----------------------------------------------------------------------------
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/enclosure.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_dbg.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_driver.h>
#include <scsi/scsi_host.h>
struct ses_device {
unsigned char *page1;
unsigned char *page2;
unsigned char *page10;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
short page1_len;
short page2_len;
short page10_len;
};
struct ses_component {
u64 addr;
unsigned char *desc;
};
static int ses_probe(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
int err = -ENODEV;
if (sdev->type != TYPE_ENCLOSURE)
goto out;
err = 0;
sdev_printk(KERN_NOTICE, sdev, "Attached Enclosure device\n");
out:
return err;
}
#define SES_TIMEOUT (30 * HZ)
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
#define SES_RETRIES 3
static int ses_recv_diag(struct scsi_device *sdev, int page_code,
void *buf, int bufflen)
{
unsigned char cmd[] = {
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
RECEIVE_DIAGNOSTIC,
1, /* Set PCV bit */
page_code,
bufflen >> 8,
bufflen & 0xff,
0
};
return scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
NULL, SES_TIMEOUT, SES_RETRIES, NULL);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
}
static int ses_send_diag(struct scsi_device *sdev, int page_code,
void *buf, int bufflen)
{
u32 result;
unsigned char cmd[] = {
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
SEND_DIAGNOSTIC,
0x10, /* Set PF bit */
0,
bufflen >> 8,
bufflen & 0xff,
0
};
result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, buf, bufflen,
NULL, SES_TIMEOUT, SES_RETRIES, NULL);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
if (result)
sdev_printk(KERN_ERR, sdev, "SEND DIAGNOSTIC result: %8x\n",
result);
return result;
}
static int ses_set_page2_descriptor(struct enclosure_device *edev,
struct enclosure_component *ecomp,
unsigned char *desc)
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
{
int i, j, count = 0, descriptor = ecomp->number;
struct scsi_device *sdev = to_scsi_device(edev->edev.parent);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
struct ses_device *ses_dev = edev->scratch;
unsigned char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
unsigned char *desc_ptr = ses_dev->page2 + 8;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
/* Clear everything */
memset(desc_ptr, 0, ses_dev->page2_len - 8);
for (i = 0; i < ses_dev->page1[10]; i++, type_ptr += 4) {
for (j = 0; j < type_ptr[1]; j++) {
desc_ptr += 4;
if (type_ptr[0] != ENCLOSURE_COMPONENT_DEVICE &&
type_ptr[0] != ENCLOSURE_COMPONENT_ARRAY_DEVICE)
continue;
if (count++ == descriptor) {
memcpy(desc_ptr, desc, 4);
/* set select */
desc_ptr[0] |= 0x80;
/* clear reserved, just in case */
desc_ptr[0] &= 0xf0;
}
}
}
return ses_send_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len);
}
static unsigned char *ses_get_page2_descriptor(struct enclosure_device *edev,
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
struct enclosure_component *ecomp)
{
int i, j, count = 0, descriptor = ecomp->number;
struct scsi_device *sdev = to_scsi_device(edev->edev.parent);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
struct ses_device *ses_dev = edev->scratch;
unsigned char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
unsigned char *desc_ptr = ses_dev->page2 + 8;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
ses_recv_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len);
for (i = 0; i < ses_dev->page1[10]; i++, type_ptr += 4) {
for (j = 0; j < type_ptr[1]; j++) {
desc_ptr += 4;
if (type_ptr[0] != ENCLOSURE_COMPONENT_DEVICE &&
type_ptr[0] != ENCLOSURE_COMPONENT_ARRAY_DEVICE)
continue;
if (count++ == descriptor)
return desc_ptr;
}
}
return NULL;
}
static void ses_get_fault(struct enclosure_device *edev,
struct enclosure_component *ecomp)
{
unsigned char *desc;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
desc = ses_get_page2_descriptor(edev, ecomp);
if (desc)
ecomp->fault = (desc[3] & 0x60) >> 4;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
}
static int ses_set_fault(struct enclosure_device *edev,
struct enclosure_component *ecomp,
enum enclosure_component_setting val)
{
unsigned char desc[4] = {0 };
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
switch (val) {
case ENCLOSURE_SETTING_DISABLED:
/* zero is disabled */
break;
case ENCLOSURE_SETTING_ENABLED:
desc[2] = 0x02;
break;
default:
/* SES doesn't do the SGPIO blink settings */
return -EINVAL;
}
return ses_set_page2_descriptor(edev, ecomp, desc);
}
static void ses_get_status(struct enclosure_device *edev,
struct enclosure_component *ecomp)
{
unsigned char *desc;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
desc = ses_get_page2_descriptor(edev, ecomp);
if (desc)
ecomp->status = (desc[0] & 0x0f);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
}
static void ses_get_locate(struct enclosure_device *edev,
struct enclosure_component *ecomp)
{
unsigned char *desc;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
desc = ses_get_page2_descriptor(edev, ecomp);
if (desc)
ecomp->locate = (desc[2] & 0x02) ? 1 : 0;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
}
static int ses_set_locate(struct enclosure_device *edev,
struct enclosure_component *ecomp,
enum enclosure_component_setting val)
{
unsigned char desc[4] = {0 };
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
switch (val) {
case ENCLOSURE_SETTING_DISABLED:
/* zero is disabled */
break;
case ENCLOSURE_SETTING_ENABLED:
desc[2] = 0x02;
break;
default:
/* SES doesn't do the SGPIO blink settings */
return -EINVAL;
}
return ses_set_page2_descriptor(edev, ecomp, desc);
}
static int ses_set_active(struct enclosure_device *edev,
struct enclosure_component *ecomp,
enum enclosure_component_setting val)
{
unsigned char desc[4] = {0 };
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
switch (val) {
case ENCLOSURE_SETTING_DISABLED:
/* zero is disabled */
ecomp->active = 0;
break;
case ENCLOSURE_SETTING_ENABLED:
desc[2] = 0x80;
ecomp->active = 1;
break;
default:
/* SES doesn't do the SGPIO blink settings */
return -EINVAL;
}
return ses_set_page2_descriptor(edev, ecomp, desc);
}
static struct enclosure_component_callbacks ses_enclosure_callbacks = {
.get_fault = ses_get_fault,
.set_fault = ses_set_fault,
.get_status = ses_get_status,
.get_locate = ses_get_locate,
.set_locate = ses_set_locate,
.set_active = ses_set_active,
};
struct ses_host_edev {
struct Scsi_Host *shost;
struct enclosure_device *edev;
};
int ses_match_host(struct enclosure_device *edev, void *data)
{
struct ses_host_edev *sed = data;
struct scsi_device *sdev;
if (!scsi_is_sdev_device(edev->edev.parent))
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
return 0;
sdev = to_scsi_device(edev->edev.parent);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
if (sdev->host != sed->shost)
return 0;
sed->edev = edev;
return 1;
}
static void ses_process_descriptor(struct enclosure_component *ecomp,
unsigned char *desc)
{
int eip = desc[0] & 0x10;
int invalid = desc[0] & 0x80;
enum scsi_protocol proto = desc[0] & 0x0f;
u64 addr = 0;
struct ses_component *scomp = ecomp->scratch;
unsigned char *d;
scomp->desc = desc;
if (invalid)
return;
switch (proto) {
case SCSI_PROTOCOL_SAS:
if (eip)
d = desc + 8;
else
d = desc + 4;
/* only take the phy0 addr */
addr = (u64)d[12] << 56 |
(u64)d[13] << 48 |
(u64)d[14] << 40 |
(u64)d[15] << 32 |
(u64)d[16] << 24 |
(u64)d[17] << 16 |
(u64)d[18] << 8 |
(u64)d[19];
break;
default:
/* FIXME: Need to add more protocols than just SAS */
break;
}
scomp->addr = addr;
}
struct efd {
u64 addr;
struct device *dev;
};
static int ses_enclosure_find_by_addr(struct enclosure_device *edev,
void *data)
{
struct efd *efd = data;
int i;
struct ses_component *scomp;
if (!edev->component[0].scratch)
return 0;
for (i = 0; i < edev->components; i++) {
scomp = edev->component[i].scratch;
if (scomp->addr != efd->addr)
continue;
enclosure_add_device(edev, i, efd->dev);
return 1;
}
return 0;
}
static void ses_match_to_enclosure(struct enclosure_device *edev,
struct scsi_device *sdev)
{
unsigned char *buf;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
unsigned char *desc;
unsigned int vpd_len;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
struct efd efd = {
.addr = 0,
};
buf = scsi_get_vpd_page(sdev, 0x83);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
if (!buf)
return;
vpd_len = ((buf[2] << 8) | buf[3]) + 4;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
desc = buf + 4;
while (desc < buf + vpd_len) {
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
enum scsi_protocol proto = desc[0] >> 4;
u8 code_set = desc[0] & 0x0f;
u8 piv = desc[1] & 0x80;
u8 assoc = (desc[1] & 0x30) >> 4;
u8 type = desc[1] & 0x0f;
u8 len = desc[3];
if (piv && code_set == 1 && assoc == 1
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
&& proto == SCSI_PROTOCOL_SAS && type == 3 && len == 8)
efd.addr = (u64)desc[4] << 56 |
(u64)desc[5] << 48 |
(u64)desc[6] << 40 |
(u64)desc[7] << 32 |
(u64)desc[8] << 24 |
(u64)desc[9] << 16 |
(u64)desc[10] << 8 |
(u64)desc[11];
desc += len + 4;
}
if (!efd.addr)
goto free;
efd.dev = &sdev->sdev_gendev;
enclosure_for_each_device(ses_enclosure_find_by_addr, &efd);
free:
kfree(buf);
}
#define INIT_ALLOC_SIZE 32
static int ses_intf_add(struct device *cdev,
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
struct class_interface *intf)
{
struct scsi_device *sdev = to_scsi_device(cdev->parent);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
struct scsi_device *tmp_sdev;
unsigned char *buf = NULL, *hdr_buf, *type_ptr, *desc_ptr = NULL,
*addl_desc_ptr = NULL;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
struct ses_device *ses_dev;
u32 result;
int i, j, types, len, page7_len = 0, components = 0;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
int err = -ENOMEM;
struct enclosure_device *edev;
struct ses_component *scomp = NULL;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
if (!scsi_device_enclosure(sdev)) {
/* not an enclosure, but might be in one */
edev = enclosure_find(&sdev->host->shost_gendev);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
if (edev) {
ses_match_to_enclosure(edev, sdev);
put_device(&edev->edev);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
}
return -ENODEV;
}
/* TYPE_ENCLOSURE prints a message in probe */
if (sdev->type != TYPE_ENCLOSURE)
sdev_printk(KERN_NOTICE, sdev, "Embedded Enclosure Device\n");
ses_dev = kzalloc(sizeof(*ses_dev), GFP_KERNEL);
hdr_buf = kzalloc(INIT_ALLOC_SIZE, GFP_KERNEL);
if (!hdr_buf || !ses_dev)
goto err_init_free;
result = ses_recv_diag(sdev, 1, hdr_buf, INIT_ALLOC_SIZE);
if (result)
goto recv_failed;
if (hdr_buf[1] != 0) {
/* FIXME: need subenclosure support; I've just never
* seen a device with subenclosures and it makes the
* traversal routines more complex */
sdev_printk(KERN_ERR, sdev,
"FIXME driver has no support for subenclosures (%d)\n",
hdr_buf[1]);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
goto err_free;
}
len = (hdr_buf[2] << 8) + hdr_buf[3] + 4;
buf = kzalloc(len, GFP_KERNEL);
if (!buf)
goto err_free;
result = ses_recv_diag(sdev, 1, buf, len);
if (result)
goto recv_failed;
types = buf[10];
type_ptr = buf + 12 + buf[11];
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
for (i = 0; i < types; i++, type_ptr += 4) {
if (type_ptr[0] == ENCLOSURE_COMPONENT_DEVICE ||
type_ptr[0] == ENCLOSURE_COMPONENT_ARRAY_DEVICE)
components += type_ptr[1];
}
ses_dev->page1 = buf;
ses_dev->page1_len = len;
buf = NULL;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
result = ses_recv_diag(sdev, 2, hdr_buf, INIT_ALLOC_SIZE);
if (result)
goto recv_failed;
len = (hdr_buf[2] << 8) + hdr_buf[3] + 4;
buf = kzalloc(len, GFP_KERNEL);
if (!buf)
goto err_free;
/* make sure getting page 2 actually works */
result = ses_recv_diag(sdev, 2, buf, len);
if (result)
goto recv_failed;
ses_dev->page2 = buf;
ses_dev->page2_len = len;
buf = NULL;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
/* The additional information page --- allows us
* to match up the devices */
result = ses_recv_diag(sdev, 10, hdr_buf, INIT_ALLOC_SIZE);
if (!result) {
len = (hdr_buf[2] << 8) + hdr_buf[3] + 4;
buf = kzalloc(len, GFP_KERNEL);
if (!buf)
goto err_free;
result = ses_recv_diag(sdev, 10, buf, len);
if (result)
goto recv_failed;
ses_dev->page10 = buf;
ses_dev->page10_len = len;
buf = NULL;
}
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
scomp = kzalloc(sizeof(struct ses_component) * components, GFP_KERNEL);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
if (!scomp)
goto err_free;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
edev = enclosure_register(cdev->parent, dev_name(&sdev->sdev_gendev),
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
components, &ses_enclosure_callbacks);
if (IS_ERR(edev)) {
err = PTR_ERR(edev);
goto err_free;
}
edev->scratch = ses_dev;
for (i = 0; i < components; i++)
edev->component[i].scratch = scomp + i;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
/* Page 7 for the descriptors is optional */
result = ses_recv_diag(sdev, 7, hdr_buf, INIT_ALLOC_SIZE);
if (result)
goto simple_populate;
page7_len = len = (hdr_buf[2] << 8) + hdr_buf[3] + 4;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
/* add 1 for trailing '\0' we'll use */
buf = kzalloc(len + 1, GFP_KERNEL);
if (!buf)
goto simple_populate;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
result = ses_recv_diag(sdev, 7, buf, len);
if (result) {
simple_populate:
kfree(buf);
buf = NULL;
desc_ptr = NULL;
addl_desc_ptr = NULL;
} else {
desc_ptr = buf + 8;
len = (desc_ptr[2] << 8) + desc_ptr[3];
/* skip past overall descriptor */
desc_ptr += len + 4;
if (ses_dev->page10)
addl_desc_ptr = ses_dev->page10 + 8;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
}
type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11];
components = 0;
for (i = 0; i < types; i++, type_ptr += 4) {
for (j = 0; j < type_ptr[1]; j++) {
char *name = NULL;
struct enclosure_component *ecomp;
if (desc_ptr) {
if (desc_ptr >= buf + page7_len) {
desc_ptr = NULL;
} else {
len = (desc_ptr[2] << 8) + desc_ptr[3];
desc_ptr += 4;
/* Add trailing zero - pushes into
* reserved space */
desc_ptr[len] = '\0';
name = desc_ptr;
}
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
}
if (type_ptr[0] == ENCLOSURE_COMPONENT_DEVICE ||
type_ptr[0] == ENCLOSURE_COMPONENT_ARRAY_DEVICE) {
ecomp = enclosure_component_register(edev,
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
components++,
type_ptr[0],
name);
if (!IS_ERR(ecomp) && addl_desc_ptr)
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
ses_process_descriptor(ecomp,
addl_desc_ptr);
}
if (desc_ptr)
desc_ptr += len;
if (addl_desc_ptr)
addl_desc_ptr += addl_desc_ptr[1] + 2;
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
}
}
kfree(buf);
kfree(hdr_buf);
/* see if there are any devices matching before
* we found the enclosure */
shost_for_each_device(tmp_sdev, sdev->host) {
if (tmp_sdev->lun != 0 || scsi_device_enclosure(tmp_sdev))
continue;
ses_match_to_enclosure(edev, tmp_sdev);
}
return 0;
recv_failed:
sdev_printk(KERN_ERR, sdev, "Failed to get diagnostic page 0x%x\n",
result);
err = -ENODEV;
err_free:
kfree(buf);
kfree(scomp);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
kfree(ses_dev->page10);
kfree(ses_dev->page2);
kfree(ses_dev->page1);
err_init_free:
kfree(ses_dev);
kfree(hdr_buf);
sdev_printk(KERN_ERR, sdev, "Failed to bind enclosure %d\n", err);
return err;
}
static int ses_remove(struct device *dev)
{
return 0;
}
static void ses_intf_remove(struct device *cdev,
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
struct class_interface *intf)
{
struct scsi_device *sdev = to_scsi_device(cdev->parent);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
struct enclosure_device *edev;
struct ses_device *ses_dev;
if (!scsi_device_enclosure(sdev))
return;
edev = enclosure_find(cdev->parent);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
if (!edev)
return;
ses_dev = edev->scratch;
edev->scratch = NULL;
kfree(ses_dev->page10);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
kfree(ses_dev->page1);
kfree(ses_dev->page2);
kfree(ses_dev);
kfree(edev->component[0].scratch);
put_device(&edev->edev);
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
enclosure_unregister(edev);
}
static struct class_interface ses_interface = {
.add_dev = ses_intf_add,
.remove_dev = ses_intf_remove,
[SCSI] ses: add new Enclosure ULD This adds support to SCSI for enclosure services devices. It also makes use of the enclosure services added in an earlier patch to display the enclosure topology in sysfs. At the moment, the enclosures are SAS specific, but if anyone actually has a non-SAS enclosure that follows the SES-2 standard, we can add that as well. On my Vitesse based system, the enclosures show up like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/ total 0 -r--r--r-- 1 root root 4096 2008-02-03 15:44 components lrwxrwxrwx 1 root root 0 2008-02-03 15:44 device -> ../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:12/end_device-0:0:12/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 000 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 001 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 002 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 003 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 004 drwxr-xr-x 2 root root 0 2008-02-03 15:44 SLOT 005 lrwxrwxrwx 1 root root 0 2008-02-03 15:44 subsystem -> ../../enclosure --w------- 1 root root 4096 2008-02-03 15:44 uevent And the individual occupied slots like this: sparkweed:~# ls -l /sys/class/enclosure/0\:0\:1\:0/SLOT\ 001/ total 0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 active lrwxrwxrwx 1 root root 0 2008-02-03 15:45 device -> ../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:11/end_device-0:0:11/target0:0:0/0:0:0:0 -rw-r--r-- 1 root root 4096 2008-02-03 15:45 fault -rw-r--r-- 1 root root 4096 2008-02-03 15:45 locate -rw-r--r-- 1 root root 4096 2008-02-03 15:45 status lrwxrwxrwx 1 root root 0 2008-02-03 15:45 subsystem -> ../../../enclosure_component -r--r--r-- 1 root root 4096 2008-02-03 15:45 type --w------- 1 root root 4096 2008-02-03 15:45 uevent You can flash the various blinky lights by echoing to the fault and locate files. >From the device's point of view, you can see it has an enclosure like this: sparkweed:~# ls /sys/class/scsi_disk/0\:0\:0\:0/device/ block:sda generic queue_depth state bsg:0:0:0:0 iocounterbits queue_type subsystem bus iodone_cnt rescan timeout delete ioerr_cnt rev type device_blocked iorequest_cnt scsi_device:0:0:0:0 uevent driver modalias scsi_disk:0:0:0:0 vendor enclosure_component:SLOT 001 model scsi_generic:sg0 evt_media_change power scsi_level Note the enclosure_component:SLOT 001 which shows where in the enclosure this device fits. The astute will notice that I'm using SCSI VPD Inquiries to identify the devices. This, unfortunately, won't work for SATA devices unless we do some really nasty hacking about on the SAT because the only think that knows the SAS addresses for SATA devices is libsas, not libata where the SAT resides. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-03 21:48:56 +00:00
};
static struct scsi_driver ses_template = {
.owner = THIS_MODULE,
.gendrv = {
.name = "ses",
.probe = ses_probe,
.remove = ses_remove,
},
};
static int __init ses_init(void)
{
int err;
err = scsi_register_interface(&ses_interface);
if (err)
return err;
err = scsi_register_driver(&ses_template.gendrv);
if (err)
goto out_unreg;
return 0;
out_unreg:
scsi_unregister_interface(&ses_interface);
return err;
}
static void __exit ses_exit(void)
{
scsi_unregister_driver(&ses_template.gendrv);
scsi_unregister_interface(&ses_interface);
}
module_init(ses_init);
module_exit(ses_exit);
MODULE_ALIAS_SCSI_DEVICE(TYPE_ENCLOSURE);
MODULE_AUTHOR("James Bottomley");
MODULE_DESCRIPTION("SCSI Enclosure Services (ses) driver");
MODULE_LICENSE("GPL v2");