talos-op-linux/include/scsi/scsi_device.h, branch v4.4.4

scsi_dh: kill struct scsi_dh_data

2015-08-28T20:14:57+00:00

Add a ->handler and a ->handler_data field to struct scsi_device and kill this indirection. Also move struct scsi_device_handler to scsi_dh.h so that changes to it don't require rebuilding every SCSI LLDD. Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke Signed-off-by: James Bottomley

scsi_dh: move device matching to the core code

2015-08-28T20:14:56+00:00

Add a single list of devices that need non-ALUA device handlers to the core scsi_dh code so that we can autoload the modules for them at probe time. While this is a little ugly in terms of architecture it actually significantly simplifies the code in addition to the new autoloading functionality. Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke Acked-by: Mike Snitzer Signed-off-by: James Bottomley

dm-mpath, scsi_dh: don't let dm detach device handlers

2015-08-28T20:14:54+00:00

While allowing dm-mpath to attach device handlers is a functionality we need for backwards compatibility reason there is no reason to reference count them and detach them if dm-mpath stops using the device for some reason. If the device handler works for the given device it can just stay attached, and we can take the retain_hw_handler codepath. Signed-off-by: Christoph Hellwig Acked-by: Mike Snitzer Acked-by: Hannes Reinecke Signed-off-by: James Bottomley

scsi: Add ALUA state change UA handling

2015-08-26T14:19:57+00:00

Log the ALUA state change unit attention correctly with the message log and emit an event to allow user-space tools to react to it. Signed-off-by: Hannes Reinecke Reviewed-by: Ewan D. Milne Reviewed-by: Bart Van Assche Signed-off-by: James Bottomley

Move code that is used both by initiator and target drivers

2015-06-01T14:32:43+00:00

Move the functions that are used by both the initiator and target subsystems into scsi_common.c/.h. This change will allow to remove the initiator SCSI header include directives from most SCSI target source files in a later patch. Signed-off-by: Bart Van Assche Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Signed-off-by: James Bottomley

scsi_logging: return void for dev_printk() functions

2015-02-04T16:00:24+00:00

dev_printk() is now a void function, so the related functions scmd_printk() and sdev_prefix_printk() should be made void, too. Reported-by: Stephen Rothwell Signed-off-by: Hannes Reinecke Cc: Christoph Hellwig Signed-off-by: James Bottomley

scsi: annotate sdev_prefix_printk and scmd_printk as printf-like

2015-01-20T18:43:22+00:00

Signed-off-by: Christoph Hellwig Reviewed-by: James Bottomley Reviewed-by: Ewan D. Milne Reviewed-by: Hannes Reinecke

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

SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM

2014-12-15T14:11:06+00:00

After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to depend on CONFIG_PM. Replace CONFIG_PM_RUNTIME with CONFIG_PM everywhere under drivers/scsi/ and in include/scsi/scsi_device.h. Signed-off-by: Rafael J. Wysocki Reviewed-by: Aaron Lu Acked-by: Christoph Hellwig

scsi: drop reason argument from ->change_queue_depth

2014-11-24T13:45:27+00:00

Drop the now unused reason argument from the ->change_queue_depth method. Also add a return value to scsi_adjust_queue_depth, and rename it to scsi_change_queue_depth now that it can be used as the default ->change_queue_depth implementation. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke