litmus-rt.git/drivers/scsi/Makefile, branch test

scsi: Conditionally compile in constants.c

2015-01-09T14:44:31+00:00

Instead of having constants.c littered with ifdef statements we should
be moving dummy functions into the header and condintionally compile in
constants.c if selected. And update the Kconfig description to reflect
the actual size difference.

Suggested-by: Christoph Hellwig 
Tested-by: Robert Elliott 
Reviewed-by: Robert Elliott 
Signed-off-by: Hannes Reinecke 
Signed-off-by: Christoph Hellwig

scsi: Implement per-cpu logging buffer

2015-01-09T14:44:28+00:00

Implement a per-cpu buffer for formatting messages to avoid line breaks
up under high load.  This patch implements scmd_printk() and
sdev_prefix_printk() using the per-cpu buffer and makes sdev_printk() a
wrapper for sdev_prefix_printk().

Tested-by: Robert Elliott 
Reviewed-by: Robert Elliott 
Signed-off-by: Hannes Reinecke 
Signed-off-by: Christoph Hellwig

wd719x: Introduce Western Digital WD7193/7197/7296 PCI SCSI card driver

2014-11-25T14:42:54+00:00

Introduce wd719x, a driver for Western Digital WD7193, WD7197 and WD7296 PCI
SCSI controllers based on WD33C296A chip.
Tested with WD7193 card.

Signed-off-by: Ondrej Zary 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Christoph Hellwig

tmscsim: replace by am53c974 driver

2014-11-24T15:13:18+00:00

The am53c974 is a re-implementation of the tmscsim driver,
and provides the same functionality.
So remove the tmscsim driver and make am53c974 an alias to tmscsim.

Acked-by: Guennadi Liakhovetski 
Signed-off-by: Hannes Reinecke 
Signed-off-by: Christoph Hellwig

am53c974: add new driver

2014-11-24T15:13:05+00:00

This patch adds a new implementation for the Tekram DC-390T /
AMD AM53c974 SCSI controller, based on the generic
esp_scsi infrastructure.

Reviewed-by: Paolo Bonzini 
Signed-off-by: Hannes Reinecke 
Signed-off-by: Christoph Hellwig

xen-scsifront: Add Xen PV SCSI frontend driver

2014-09-23T13:36:19+00:00

Introduces the Xen pvSCSI frontend. With pvSCSI it is possible for a
Xen domU to issue SCSI commands to a SCSI LUN assigned to that
domU. The SCSI commands are passed to the pvSCSI backend in a driver
domain (usually Dom0) which is owner of the physical device. This
allows e.g. to use SCSI tape drives in a Xen domU.

The code is taken from the pvSCSI implementation in Xen done by
Fujitsu based on Linux kernel 2.6.18.

Changes from the original version are:
- port to upstream kernel
- put all code in just one source file
- move module to appropriate location in kernel tree
- adapt to Linux style guide
- some minor code simplifications
- replace constants with defines
- remove not used defines
- add support for larger SG lists by putting them in a granted page

Signed-off-by: Juergen Gross 
Acked-by: Christoph Hellwig 
Signed-off-by: David Vrabel

tgt: removal

2014-07-17T20:07:44+00:00

Now that the ibmvstgt driver as the only user of scsi_tgt is gone, the
scsi_tgt kernel module, the CONFIG_SCSI_TGT, CONFIG_SCSI_SRP_TGT_ATTRS and
CONFIG_SCSI_FC_TGT_ATTRS kbuild variable, the scsi_host_template
transfer_response method are no longer needed.

[hch: minor updates to the current tree, changelog update]

Signed-off-by: Bart Van Assche 
Signed-off-by: Christoph Hellwig 
Reviewed-by: Paolo Bonzini 
Reviewed-by: Hannes Reinecke

libsrp: removal

2014-07-17T20:07:43+00:00

Remove the libsrp module which was only used by the now removed ibmvstgt
driver.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Paolo Bonzini 
Reviewed-by: Hannes Reinecke

ibmvstgt: remove

2014-07-17T20:07:43+00:00

The IBM virtual SCSI protocol has been obsoleted by ibmvfc, and there
are no reported of the driver left.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Paolo Bonzini 
Reviewed-by: Hannes Reinecke

[SCSI] aci7xxx_old: delete decade+ obsolete driver

2013-12-19T15:39:02+00:00

After getting warnings in an allyesconfig build[1] from this
driver, I decided to remind myself just how old it was, and
whether it warranted fixing.  In the Kconfig help text, I found:

  "This driver will eventually be phased out entirely"

Going back to the history archive, I see the line was added[2]
in Feb 2002, when we moved from v2.4.2.1 ---> v2.4.2.2

So, with over a decade of notification, and multiple major releases
since then, I think we can justify removing this.  Currently we have
people wasting time building it during routine testing, and then
wasting more time re-researching the known reported warnings, only to
find that nobody really is willing to integrate the fixes[3] for it.

A quick search didn't seem to indicate any active user base for it.
If someone happens to have a quirky _old_ card that the eleven year
old "new" driver doesn't work with, then it is entirely reasonable
that they stick with a kernel version that predates this removal.

[1] drivers/scsi/aic7xxx_old.c: In function ‘aic7xxx_register’:
    drivers/scsi/aic7xxx_old.c:7901:5: warning: case value ‘257’ not in enumerated type ‘ahc_chip’ [-Wswitch]
    drivers/scsi/aic7xxx_old.c:7898:5: warning: case value ‘513’ not in enumerated type ‘ahc_chip’ [-Wswitch]
    drivers/scsi/aic7xxx_old.c: In function ‘aic7xxx_load_seeprom’:
    drivers/scsi/aic7xxx_old.c:8517:5: warning: case value ‘257’ not in enumerated type ‘ahc_chip’ [-Wswitch]
    drivers/scsi/aic7xxx_old.c:8510:5: warning: case value ‘513’ not in enumerated type ‘ahc_chip’ [-Wswitch]

[2] http://git.kernel.org/cgit/linux/kernel/git/tglx/history.git commit 44e8778c

[3] https://lkml.org/lkml/2012/10/29/215

Signed-off-by: Paul Gortmaker 
Acked-by: Hannes Reinecke 
Acked-by: Doug Ledford 
Signed-off-by: James Bottomley