Commit Graph

664 Commits

Author SHA1 Message Date
Mark
c80b4495c6 USB: storage: Add quirks for Entrega/Xircom USB to SCSI converters
This patch adds quirks for Entrega Technologies (later Xircom PortGear) USB-
SCSI converters. They use Shuttle Technology EUSB-01/EUSB-S1 chips. The
US_FL_SCM_MULT_TARG quirk is needed to allow multiple devices on the SCSI
chain to be accessed. Without it only the (single) device with SCSI ID 0
can be used.

The standalone converter sold by Entrega had model number U1-SC25. Xircom
acquired Entrega and re-branded the product line PortGear. The PortGear USB
to SCSI Converter (model PGSCSI) is internally identical to the Entrega
product, but later models may use a different USB ID. The Entrega-branded
units have USB ID 1645:0007, as does my Xircom PGSCSI, but the Windows and
Macintosh drivers also support 085A:0028.

Entrega also sold the "Mac USB Dock", which provides two USB ports, a Mac
(8-pin mini-DIN) serial port and a SCSI port. It appears to the computer as
a four-port hub, USB-serial, and USB-SCSI converters. The USB-SCSI part may
have initially used the same ID as the standalone U1-SC25 (1645:0007), but
later production used 085A:0026.

My Xircom PortGear PGSCSI has bcdDevice=0x0100. Units with bcdDevice=0x0133
probably also exist.

This patch adds quirks for 1645:0007, 085A:0026 and 085A:0028. The Windows
driver INF file also mentions 085A:0032 "PortStation SCSI Module", but I
couldn't find any mention of that actually existing in the wild; perhaps it
was cancelled before release?

Signed-off-by: Mark Knibbs <markk@clara.co.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-19 15:01:38 -07:00
Mark
b6a3ed6779 USB: storage: Add quirk for Ariston Technologies iConnect USB to SCSI adapter
Hi,

The Ariston Technologies iConnect 025 and iConnect 050 (also known as e.g.
iSCSI-50) are SCSI-USB converters which use Shuttle Technology/SCM
Microsystems chips. Only the connectors differ; both have the same USB ID.
The US_FL_SCM_MULT_TARG quirk is required to use SCSI devices with ID other
than 0.

I don't have one of these, but based on the other entries for Shuttle/
SCM-based converters this patch is very likely correct. I used 0x0000 and
0x9999 for bcdDeviceMin and bcdDeviceMax because I'm not sure which
bcdDevice value the products use.

Signed-off-by: Mark Knibbs <markk@clara.co.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-19 15:01:38 -07:00
Mark
67d365a57a USB: storage: Add quirk for Adaptec USBConnect 2000 USB-to-SCSI Adapter
The Adaptec USBConnect 2000 is another SCSI-USB converter which uses
Shuttle Technology/SCM Microsystems chips. The US_FL_SCM_MULT_TARG quirk is
required to use SCSI devices with ID other than 0.

I don't have a USBConnect 2000, but based on the other entries for Shuttle/
SCM-based converters this patch is very likely correct. I used 0x0000 and
0x9999 for bcdDeviceMin and bcdDeviceMax because I'm not sure which
bcdDevice value the product uses.

Signed-off-by: Mark Knibbs <markk@clara.co.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-19 15:01:38 -07:00
Mark
c66f1c62e8 storage: Add single-LUN quirk for Jaz USB Adapter
The Iomega Jaz USB Adapter is a SCSI-USB converter cable. The hardware
seems to be identical to e.g. the Microtech XpressSCSI, using a Shuttle/
SCM chip set. However its firmware restricts it to only work with Jaz
drives.

On connecting the cable a message like this appears four times in the log:
 reset full speed USB device number 4 using uhci_hcd

That's non-fatal but the US_FL_SINGLE_LUN quirk fixes it.

Signed-off-by: Mark Knibbs <markk@clara.co.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-11 14:22:25 -07:00
Hans de Goede
a79e5bc53a uas: Add missing le16_to_cpu calls to asm1051 / asm1053 usb-id check
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-11 14:21:43 -07:00
Hans de Goede
a9c54caa45 uas: Disable uas on ASM1051 devices
There are a large numbers of issues with ASM1051 devices in uas mode:

1) They do not support REPORT SUPPORTED OPERATION CODES

2) They use out of spec 8 byte status iu-s when they have no sense data,
   switching to normal 16 byte status iu-s when they do have sense data.

3) They hang / crash when combined with some disks, e.g. a Crucial M500 ssd.

4) They hang / crash when stressed (through e.g. sg_reset --bus) with disks
   with which then normally do work (once 1 & 2 are worked around).

Where as in BOT mode they appear to work fine, so the best way forward with
these devices is to just blacklist them for uas usage.

Unfortunately this is easier said then done. as older versions of the ASM1053
(which works fine) use the same usb-id as the ASM1051.

When connected over USB-3 the 2 can be told apart by the number of streams
they support. So this patch adds some less then pretty code to disable uas for
the ASM1051. When connected over USB-2, simply disable uas alltogether for
devices with the shared usb-id.

Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-10 13:32:35 -07:00
Mark
a7e69ddb10 USB: storage: add quirk for Newer Technology uSCSI SCSI-USB converter
The uSCSI from Newer Technology is a SCSI-USB converter with USB ID 06ca:2003.
Like several other SCSI-USB products, it's a Shuttle Technology OEM device.
Without a suitable entry in unusual-devs.h, the converter can only access the
(single) device with SCSI ID 0. Copying the entry for device 04e6:0002 allows
it to work with devices with other SCSI IDs too.

There are currently six entries for Shuttle-developed SCSI-USB devices in
unusual-devs.h (grep for euscsi):
  04e6:0002  Shuttle eUSCSI Bridge    USB_SC_DEVICE, USB_PR_DEVICE
  04e6:000b  Shuttle eUSCSI Bridge    USB_SC_SCSI, USB_PR_BULK
  04e6:000c  Shuttle eUSCSI Bridge    USB_SC_SCSI, USB_PR_BULK
  050d:0115  Belkin USB SCSI Adaptor  USB_SC_SCSI, USB_PR_BULK
  07af:0004  Microtech USB-SCSI-DB25  USB_SC_DEVICE, USB_PR_DEVICE
  07af:0005  Microtech USB-SCSI-HD50  USB_SC_DEVICE, USB_PR_DEVICE

lsusb -v output for the uSCSI lists
  bInterfaceSubClass      6 SCSI
  bInterfaceProtocol     80 Bulk (Zip)

This patch adds an entry for the uSCSI to unusual_devs.h.

Signed-off-by: Mark Knibbs <markk@clara.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-25 10:46:11 -07:00
Linus Torvalds
6b22df74f7 SCSI misc on 20140806
This patch set consists of the usual driver updates (ufs, storvsc, pm8001
 hpsa).  It also has removal of the user space target driver code (everyone is
 using LIO now), a partial PCI MSI-X update, more multi-queue updates,
 conversion to 64 bit LUNs (so we could theoretically cope with any LUN
 returned by a device) and placeholder support for the ZBC device type (Shingle
 drives), plus an assortment of minor updates and bug fixes.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQEcBAABAgAGBQJT4mS9AAoJEDeqqVYsXL0Mq34H/2AeXiM8GEVO3PIsBtF3TFZ9
 poJvAyb8t//+VwAIVLHU9wrssIrIcyvNQmNHH/InGt5rOaXwGQRsnEc73bBtot4b
 aC1t+hAnp2Ddvu6phmyUg7iY2GmQhAoZmeaj7krGIu2XgtLGiPg26eSsgk4Yv/U9
 cuULEuOc/UnTj3w5VK8SvpyXMybVF6oQhSrS1slOglfFwPTlTI/NHU9xo7Wc3qHT
 VifHXNphIvye5EH8zwtKX5p8qCrFW0pevJwyfPz7Hp2CTA9XYKx3SoeOh+n9F9ez
 udBBggg7Vb1tb4mPKUoZ78UrtCVdFSCmesBU/RJe7cIh8daKaO5MVr3WPSx2JhM=
 =yGai
 -----END PGP SIGNATURE-----

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This patch set consists of the usual driver updates (ufs, storvsc,
  pm8001 hpsa).  It also has removal of the user space target driver
  code (everyone is using LIO now), a partial PCI MSI-X update, more
  multi-queue updates, conversion to 64 bit LUNs (so we could
  theoretically cope with any LUN returned by a device) and placeholder
  support for the ZBC device type (Shingle drives), plus an assortment
  of minor updates and bug fixes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (143 commits)
  scsi: do not issue SCSI RSOC command to Promise Vtrak E610f
  vmw_pvscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()
  pm8001: Fix invalid return when request_irq() failed
  lpfc: Remove superfluous call to pci_disable_msix()
  isci: Use pci_enable_msix_exact() instead of pci_enable_msix()
  bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()
  bfa: Cleanup bfad_setup_intr() function
  bfa: Do not call pci_enable_msix() after it failed once
  fnic: Use pci_enable_msix_exact() instead of pci_enable_msix()
  scsi: use short driver name for per-driver cmd slab caches
  scsi_debug: support scsi-mq, queues and locks
  Drivers: add blist flags
  scsi: ufs: fix endianness sparse warnings
  scsi: ufs: make undeclared functions static
  bnx2i: Update driver version to 2.7.10.1
  pm8001: fix a memory leak in nvmd_resp
  pm8001: fix update_flash
  pm8001: fix a memory leak in flash_update
  pm8001: Cleaning up uninitialized variables
  pm8001: Fix to remove null pointer checks that could never happen
  ...
2014-08-06 20:10:32 -07:00
Linus Torvalds
ae9b475ebe USB patches for 3.17-rc1
Here is the big USB driver update for 3.17-rc1.
 
 Loads of gadget driver changes in here, including some big file
 movements to make things easier to manage over time.  There's also the
 usual xhci and uas driver updates, and a handful of other changes in
 here.  The changelog has the full details.
 
 All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlPf2ZIACgkQMUfUDdst+ylvQwCfQKPKcwhtq4vJ2imUzJROEZwN
 ygYAnRpFpH/19X59uGSdE7DAdhbitqKg
 =uPh1
 -----END PGP SIGNATURE-----

Merge tag 'usb-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB driver update for 3.17-rc1.

  Loads of gadget driver changes in here, including some big file
  movements to make things easier to manage over time.  There's also the
  usual xhci and uas driver updates, and a handful of other changes in
  here.  The changelog has the full details.

  All of these have been in linux-next for a while"

* tag 'usb-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (211 commits)
  USB: devio: fix issue with log flooding
  uas: Log a warning when we cannot use uas because the hcd lacks streams
  uas: Only complain about missing sg if all other checks succeed
  xhci: Add missing checks for xhci_alloc_command failure
  xhci: Rename Asrock P67 pci product-id to EJ168
  xhci: Blacklist using streams on the Etron EJ168 controller
  uas: Limit qdepth to 32 when connected over usb-2
  uwb/whci: use correct structure type name in sizeof
  usb-core bInterval quirk
  USB: serial: ftdi_sio: Add support for new Xsens devices
  USB: serial: ftdi_sio: Annotate the current Xsens PID assignments
  usb: chipidea: debug: fix sparse non static symbol warnings
  usb: ci_hdrc_imx doc: fsl,usbphy is required
  usb: ci_hdrc_imx: Return -EINVAL for missing USB PHY
  usb: core: allow zero packet flag for interrupt urbs
  usb: lvstest: Fix sparse warnings generated by kbuild test bot
  USB: core: hcd-pci: free IRQ before disabling PCI device when shutting down
  phy: miphy365x: Represent each PHY channel as a DT subnode
  phy: miphy365x: Provide support for the MiPHY356x Generic PHY
  phy: miphy365x: Add Device Tree bindings for the MiPHY365x
  ...
2014-08-04 20:11:28 -07:00
Hans de Goede
43508be512 uas: Log a warning when we cannot use uas because the hcd lacks streams
So that an user who wants to use uas can see why he is not getting uas.

Also move the check down so that we don't warn if there are other reasons
why uas cannot work.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-01 16:00:14 -07:00
Hans de Goede
cc4deafc86 uas: Only complain about missing sg if all other checks succeed
Don't complain about controllers without sg support if there are other
reasons why uas cannot be used anyways.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-01 15:59:47 -07:00
Hans de Goede
e2875c3378 uas: Limit qdepth to 32 when connected over usb-2
Some jmicron uas chipsets act up (they disconnect from the bus) when sending
more then 32 commands to them at once.

Rather then building an ever growing list with usb-id based quirks for
devices using this chipset, simply reduce the qdepth to 32 when connected
over usb-2. 32 should be plenty to keep things close to maximum
possible throughput on usb-2.

Cc: stable@vger.kernel.org
Tested-and-reported-by: Laszlo T. <tlacix@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-01 15:48:08 -07:00
Kristina Martšenko
16fae05207 staging: keucr: remove driver
The driver hasn't been fully cleaned up and it doesn't look like anyone
is working on it anymore (including the original author). So remove the
driver and all references to it. If someone wants to finish cleaning
the driver up and moving it out of staging, this commit can be reverted.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Cho, Yu-Chen <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-23 19:01:36 -07:00
Hannes Reinecke
9cb78c16f5 scsi: use 64-bit LUNs
The SCSI standard defines 64-bit values for LUNs, and large arrays
employing large or hierarchical LUN numbers become more and more
common.

So update the linux SCSI stack to use 64-bit LUN numbers.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-17 22:07:37 +02:00
Hannes Reinecke
c309b35171 scsi: Remove CONFIG_SCSI_MULTI_LUN
Obsolete; either use 'max_lun' if the host supports only a
limited number of LUNs or BLIST_NOLUN if the target has
problems addressing more than one LUN.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-17 22:07:35 +02:00
Alan Stern
b14bf2d0c0 usb-storage/SCSI: Add broken_fua blacklist flag
Some buggy JMicron USB-ATA bridges don't know how to translate the FUA
bit in READs or WRITEs.  This patch adds an entry in unusual_devs.h
and a blacklist flag to tell the sd driver not to use FUA.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Michael Büsch <m@bues.ch>
Tested-by: Michael Büsch <m@bues.ch>
Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-30 22:47:18 -07:00
Benoit Taine
a328512d3c USB: storage: ene_ub6250: Use kmemdup instead of kmalloc + memcpy
This issue was reported by coccicheck using the semantic patch
at scripts/coccinelle/api/memdup.cocci

Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:23:44 -07:00
Daniele Forsi
6ed07d45d0 USB: Nokia 5300 should be treated as unusual dev
Signed-off-by: Daniele Forsi <dforsi@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03 19:41:07 -04:00
Victor A. Santos
f0ef5d4179 USB: Nokia 305 should be treated as unusual dev
Signed-off-by: Victor A. Santos <victoraur.santos@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03 19:41:07 -04:00
Daniele Forsi
df602c2d23 usb: storage: shuttle_usbat: fix discs being detected twice
Even if the USB-to-ATAPI converter supported multiple LUNs, this
driver would always detect the same physical device or media because
it doesn't use srb->device->lun in any way.
Tested with an Hewlett-Packard CD-Writer Plus 8200e.

Signed-off-by: Daniele Forsi <dforsi@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03 18:04:28 -04:00
Oliver Neukum
94d72f0089 uas: fix deadlocky memory allocations
There are also two allocations with GFP_KERNEL in the pre-/post_reset
code paths. That is no good because that is a part of the SCSI error handler.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16 14:04:59 -07:00
Oliver Neukum
c637f1fa7b uas: fix error handling during scsi_scan()
intfdata is set only after scsi_scan(). uas_pre_reset() however
needs intfdata to be valid and will follow the NULL pointer
killing khubd. intfdata must be preemptively set before the
host is registered and undone in the error case.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16 14:04:59 -07:00
Oliver Neukum
e7eda93293 uas: fix GFP_NOIO under spinlock
Quote Dan:

The patch e36e64930c: "uas: Use GFP_NOIO rather then GFP_ATOMIC
where possible" from Nov 7, 2013, leads to the following static
checker warning:

        drivers/usb/storage/uas.c:806 uas_eh_task_mgmt()
        error: scheduling with locks held: 'spin_lock:lock'

Some other allocations under spinlock are not caught.
The fix essentially reverts e36e64930c

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16 14:04:59 -07:00
Oliver Neukum
14aec58932 storage: accept some UAS devices if streams are unavailable
On some older XHCIs streams are not supported and the UAS driver
will fail at probe time. For those devices storage should try
to bind to UAS devices.
This patch adds a flag for stream support to HCDs and evaluates
it.

[Note: Sarah fixed a bug where the USB 2.0 root hub, not USB 3.0 root
hub would get marked as being able to support streams.]

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
2014-03-04 15:41:09 -08:00
Hans de Goede
7cace978fb uas: Remove comment about registering a uas scsi controller for each usb bus
Although an interesting concept, I don't think that this is a good idea:

-This will result in lots of "virtual" scsi controllers confusing users
-If we get a scsi-bus-reset we will now need to do a usb-device-reset of all
 uas devices on the same usb bus, which is something to avoid if possible

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:27 -08:00
Hans de Goede
f50a4968de uas: Add Hans de Goede as uas maintainer
At the kernel-summit Sarah Sharp asked me if I was willing to become the
uas maintainer. I said yes, and here is a patch to make this official.

Also remove Matthew Wilcox and Sarah Sharp as maintainers at their request.

I've also added myself to the module's author tag, so that if people look there
rather then in maintainers they will know they should bug me about uas too.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:27 -08:00
Gerd Hoffmann
dc88608dba uas: remove BROKEN
xhci streams support is fixed, unblock usb attached scsi.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:26 -08:00
Hans de Goede
37599f9603 uas: Make sure sg elements are properly aligned
Copy the sg alignment trick from the usb-storage driver, without this I'm
seeing intermittent errors when using uas devices with an ehci controller.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:26 -08:00
Hans de Goede
8e453155d7 uas: Add some data in/out ready iu sanity checks
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:26 -08:00
Hans de Goede
876285cc9c uas: Improve error reporting
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:25 -08:00
Hans de Goede
673331c87c uas: Use the right error codes for different kinds of errors
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:25 -08:00
Hans de Goede
3a4462e0e2 uas: Clear cmdinfo on command queue-ing
The scsi error handling path re-uses previously queued up (and errored-out)
cmds. If such a re-used cmd had a data-phase then cmdinfo will have
data_in_urb / data_out_urb still set to the free-ed urbs from the errored-out
cmd, and they will get free-ed a second time when the error handling cmd
completes, corrupting the kernel heap.

Clearing cmdinfo on command queue-ing fixes this, and seems like a good idea
in general.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:24 -08:00
Hans de Goede
21fc05b680 uas: Fix memory management
The scsi-host structure is refcounted, scsi_remove_host tears down the
scsi-host but does not decrement the refcount, so we need to call
scsi_put_host on disconnect to get the underlying memory to be freed.

After calling scsi_remove_host, the scsi-core may still hold a reference to
the scsi-host, iow we may still get called after uas_disconnect, but we
do our own life cycle management of uas_devinfo, freeing it on disconnect,
and thus may end up using devinfo after it has been freed. Switch to letting
scsi_host_alloc allocate and manage the memory for us.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:24 -08:00
Hans de Goede
c6f63207a3 uas: Fix command / task mgmt submission racing with disconnect
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:23 -08:00
Hans de Goede
040d1a8f11 uas: cmdinfo: use only one list head
cmds are either on the inflight list or on the dead list, never both, so
we only need one list head.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:23 -08:00
Hans de Goede
da3033ea08 uas: add uas_mark_cmd_dead helper function
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:22 -08:00
Hans de Goede
61c09ce510 uas: Properly complete inflight commands on bus-reset or disconnect
Before this commit the uas driver would keep track of scsi commands which still
need to have some urbs submitted to the device, and complete this with an
ABORT result code on bus-reset or disconnect, but in flight scsi commands
which have all their urbs submitted, and thus are not part of the work list,
would never get their done callback called.

The problem is killed sense urbs don't have any tag info, so it is impossible
to tell which scsi cmd they belong to, so merely making sure all the urbs
have completed one way or the other is not enough.

This commit fixes this by changing the work list to an inflight list, which
keeps tracks of all inflight scsi cmnds, using the IS_IN_WORK_LIST flag to
determine if actual work needs to be done in uas_do_work(), and by moving
marking all inflight scsi commands as aborted and moving them to the dead list
on bus-reset or disconnect.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:22 -08:00
Hans de Goede
c6d4579d4b uas: uas_alloc_data_urb: Remove unnecessary use_streams check
uas_alloc_data_urb always gets called with a stream_id value of 0 when not
using streams. Removing the check makes it consistent with uas_alloc_sense_urb.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:21 -08:00
Hans de Goede
f323abcda3 uas: Fix task-management not working when connected over USB-2
For USB-2 connections the stream-id must always be 0.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:21 -08:00
Hans de Goede
da65c2bb99 uas: Reset device on reboot
Some BIOS-es will hang on reboot when an uas device is attached and left in
uas mode on reboot.

This commit adds a shutdown handler which on reboot puts the device back into
usb-storage mode, fixing the hang on reboot on these systems.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:21 -08:00
Hans de Goede
0df1f663f3 uas: Add suspend/resume support
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:20 -08:00
Hans de Goede
e36e64930c uas: Use GFP_NOIO rather then GFP_ATOMIC where possible
We can sleep in our own workqueue (which is the whole reason for having
it), and scsi error handlers are also always called from a context which
may sleep.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:20 -08:00
Hans de Goede
b83b86a352 uas: Don't allow more then one task to run at the same time
Since we use a fixed tag / stream for tasks we cannot allow more then one
to run at the same time. This could happen before this time if a task timed
out.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:20 -08:00
Hans de Goede
70cf0fba76 uas: task_mgmt: Kill the sense-urb if we fail to submit the cmd urb
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:19 -08:00
Hans de Goede
58d51444cd uas: Not being able to alloc streams when connected through usb-3 is an error
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:19 -08:00
Hans de Goede
6134041bef uas: Verify endpoint descriptors from uas_use_uas_driver()
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:19 -08:00
Hans de Goede
74d71aec61 uas: Drop fixed endpoint config handling
The fixed endpoint config code was only necessary to deal with an early
uas prototype which has never been released, so lets drop it and enforce
proper uas endpoint descriptors.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:18 -08:00
Hans de Goede
d77adc0284 uas: Move uas_find_endpoints to uas-detect.h
No changes, just the move.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:18 -08:00
Hans de Goede
d495c1baa1 uas: Fix bounds check in uas_find_endpoints
The loop uses up to 3 bytes of the endpoint extra data.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:18 -08:00
Hans de Goede
34f11e59c3 uas: Add uas_find_endpoints() helper function
This is a preparation patch for adding better descriptor validation.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-04 15:38:17 -08:00