aboutsummaryrefslogtreecommitdiff
path: root/drivers/scsi/ses.c
AgeCommit message (Collapse)Author
2010-01-18[SCSI] eliminate potential kmalloc failure in scsi_get_vpd_page()James Bottomley
The best way to fix this is to eliminate the intenal kmalloc() and make the caller allocate the required amount of storage. Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22[SCSI] ses: update enclosure data on hot addJames Bottomley
Now that hot add works correctly, if a new device is added, we're still operating on stale enclosure data, so fix that by updating the enclosure diagnostic pages when we get notified of a device hot add Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22[SCSI] ses: add support for enclosure component hot removalJames Bottomley
Right at the moment, hot removal of a device within an enclosure does nothing (because the intf_remove only copes with enclosure removal not with component removal). Fix this by adding a function to remove the component. Also needed to fix the prototype of enclosure_remove_device, since we know the device we've removed but not the internal component number Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22[SCSI] ses: fix hotplug with multiple devices and expandersJames Bottomley
In a situation either with expanders or with multiple enclosure devices, hot add doesn't always work. This is because we try to find a single enclosure device attached to the host. Fix this by looping over all enclosure devices attached to the host and also by making the find loop recognise that the enclosure devices may be expander remote (i.e. not parented by the host). Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-04-03[SCSI] ses: #if 0 the unused ses_match_host()Adrian Bunk
Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-03-12[SCSI] ses: code_set == 1 is tested twiceRoel Kluin
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-03-12[SCSI] ses: Use new scsi VPD helperMatthew Wilcox
SES had its own code to retrieve VPD from devices; convert it to use the new scsi_get_vpd_page helper. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-01-02[SCSI] struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers
[jejb: limit ioctl to returning 20 characters to avoid overrun on long device names and add a few more conversions] Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29[SCSI] add residual argument to scsi_execute and scsi_execute_reqFUJITA Tomonori
scsi_execute() and scsi_execute_req() discard the residual length information. Some callers need it. This adds residual argument (optional) to scsi_execute and scsi_execute_req. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-30[SCSI] ses: fix VPD inquiry overrunJames Bottomley
There are a few kerneloops.org reports like this one: http://www.kerneloops.org/search.php?search=ses_match_to_enclosure That seem to imply we're running off the end of the VPD inquiry data (although at 512 bytes, it should be long enough for just about anything). we should be using correctly sized buffers anyway, so put those in and hope this oops goes away. Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-06-24[SCSI] ses: Fix timeoutMatthew Wilcox
Timeouts are measured in jiffies, not in seconds. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-19SCSI: convert struct class_device to struct deviceTony Jones
It's big, but there doesn't seem to be a way to split it up smaller... Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-18[SCSI] ses: fix data corruptionYinghai Lu
one system: initrd get courrupted: RAMDISK: Compressed image found at block 0 RAMDISK: incomplete write (-28 != 2048) 134217728 crc error VFS: Mounted root (ext2 filesystem). Freeing unused kernel memory: 388k freed init_special_inode: bogus i_mode (177777) Warning: unable to open an initial console. init_special_inode: bogus i_mode (177777) init_special_inode: bogus i_mode (177777) Kernel panic - not syncing: No init found. Try passing init= option to kernel. bisected to commit 9927c68864e9c39cc317b4f559309ba29e642168 Author: James Bottomley <James.Bottomley@HansenPartnership.com> Date: Sun Feb 3 15:48:56 2008 -0600 [SCSI] ses: add new Enclosure ULD changes: 1. change char to unsigned char to avoid type change later. 2. preserve len for page1 3. need to move desc_ptr even the entry is not enclosure_component_device/raid. so keep desc_ptr on right position 4. record page7 len, and double check if desc_ptr out of boundary before touch. 5. fix typo in subenclosure checking: should use hdr_buf instead. [jejb: style fixes] Signed-off-by: Yinghai Lu <yinghai.lu@sun.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-11[SCSI] ses: fix memory leaksYinghai Lu
fix leaking with scomp leaking when failing. Also free page10 on driver removal and remove one extra space. Signed-off-by: Yinghai Lu <yinghai.lu@sun.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-07[SCSI] ses: add new Enclosure ULDJames Bottomley
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>