linux/include/scsi/scsi_transport.h, branch v3.17-rc3

scsi: use 64-bit LUNs

2014-07-17T20:07:37Z

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 Reviewed-by: Christoph Hellwig Reviewed-by: Ewan Milne Signed-off-by: Christoph Hellwig

BUG: headers with BUG/BUG_ON etc. need linux/bug.h

2012-03-04T22:54:34Z

If a header file is making use of BUG, BUG_ON, BUILD_BUG_ON, or any other BUG variant in a static inline (i.e. not in a #define) then that header really should be including and not just expecting it to be implicitly present. We can make this change risk-free, since if the files using these headers didn't have exposure to linux/bug.h already, they would have been causing compile failures/warnings. Signed-off-by: Paul Gortmaker

block: unify request timeout handling

2008-10-09T06:56:13Z

Right now SCSI and others do their own command timeout handling. Move those bits to the block layer. Instead of having a timer per command, we try to be a bit more clever and simply have one per-queue. This avoids the overhead of having to tear down and setup a timer for each command, so it will result in a lot less timer fiddling. Signed-off-by: Mike Anderson Signed-off-by: Jens Axboe

SCSI: convert struct class_device to struct device

2008-04-20T02:10:33Z

It's big, but there doesn't seem to be a way to split it up smaller... Signed-off-by: Tony Jones Signed-off-by: Kay Sievers Cc: Roland Dreier Cc: Sean Hefty Cc: Hal Rosenstock Cc: James Bottomley Signed-off-by: Greg Kroah-Hartman

[SCSI] tgt: move tsk_mgmt_response callback to transport class

2007-10-12T18:38:01Z

This moves tsk_mgmt_response callback in struct scsi_host_template to struct scsi_transport_template since struct scsi_transport_template is more suitable for the task management stuff. Signed-off-by: FUJITA Tomonori Signed-off-by: Mike Christie Signed-off-by: James Bottomley

[SCSI] tgt: add I_T nexus support

2007-10-12T18:37:50Z

tgt uses scsi_host as I_T nexus. This works for ibmvstgt because it creates one scsi_host for one initiator. However, other target drivers don't work like that. This adds I_T nexus support, which enable one scsi_host to handle multiple initiators. New scsi_tgt_it_nexus_create/destroy functions are expected be called transport classes. For example, ibmvstgt creates an initiator remote port, then the srp transport calls tgt_it_nexus_create. tgt doesn't manages I_T nexus, instead it tells tgtd, user-space daemon, to create a new I_T nexus. On the receiving the response from tgtd, tgt calls shost->transportt->it_nexus_response. transports should notify a lld. The srp transport uses it_nexus_response callback in srp_function_template to do that. Signed-off-by: FUJITA Tomonori Signed-off-by: Mike Christie Signed-off-by: James Bottomley

[SCSI] scsi_transport.h should include scsi_device.h

2007-02-16T16:14:42Z

scsi_transport.h defines the inline function scsi_transport_device_data() that dereferences a pointer of "struct scsi_device *". Since the struct is not known by the header this might break compilation. Include scsi/scsi_device.h to not rely on users doing the correct magic include order. Signed-off-by: Rolf Eike Beer Signed-off-by: Andrew Morton Signed-off-by: James Bottomley

[PATCH] move ->eh_strategy_handler to the transport class

2006-04-10T18:15:47Z

Overriding the whole EH code is a per-transport, not per-host thing. Move ->eh_strategy_handler to the transport class, same as ->eh_timed_out. Downside is that scsi_host_alloc can't check for the total lack of EH anymore, but the transition period from old EH where we needed it is long gone already. Signed-off-by: Christoph Hellwig Signed-off-by: Jeff Garzik

[SCSI] FC transport : Avoid device offline cases by stalling aborts until device unblocked

2006-03-13T14:58:58Z

This moves the eh_timed_out functionality from the scsi_host_template to the transport_template. Given that this is now a transport function, the EH_RESET_TIMER case no longer caps the timer reschedulings. The transport guarantees that this is not an infinite condition. Signed-off-by: James Bottomley

[SCSI] remove target parent limitiation

2006-01-14T16:55:05Z

When James Smart fixed the issue of the userspace scan atributes crashing the system with the FC transport class he added a patch to let the transport class check if the parent is valid for a given transport class. When adding support for the integrated raid of fusion sas devices we ran into a problem with that, as it didn't allow adding virtual raid volumes without the transport class knowing about it. So this patch adds a user_scan attribute instead, that takes over from scsi_scan_host_selected if the transport class sets it and thus lets the transport class control the user-initiated scanning. As this plugs the hole about user-initiated scanning the target_parent hook goes away and we rely on callers of the scanning routines to do something sensible. For SAS this meant I had to switch from a spinlock to a mutex to synchronize the topology linked lists, in FC they were completely unsynchronized which seems wrong. Signed-off-by: Christoph Hellwig Signed-off-by: James Bottomley