linux-toradex.git/drivers/scsi/libfc/fc_libfc.h, branch v5.0

libfc, libfcoe, fcoe: Convert debug_logging macros to pr_info

2012-12-14T18:38:55+00:00

Convert libfc, libfcoe and fcoe's debug_logging macros
to use pr_info() instead of printk(KERN_INFO, ...). checkpatch.pl
now complains about this, so convert libfcoe to preferred
method.

Signed-off-by: Robert Love 
Tested-by: Marcus Dennis

scsi: remove the second argument of k[un]map_atomic()

2012-03-20T13:48:19+00:00

Signed-off-by: Cong Wang

[SCSI] libfc: release DDP context if frame_send() fails

2011-05-24T16:36:51+00:00

In case frame_send() fails, make sure to let the underlying HW release the DDP
context that has already been set up before calling frame_send().

Signed-off-by: Yi Zou 
Signed-off-by: Robert Love 
Signed-off-by: James Bottomley

[SCSI] libfc: Extending lport's roles for target if there is a registered target.

2011-02-12T17:08:22+00:00

Problem:

From initaitor machine, when queried role of target (other end of connection),
it is "initiator", hence SCSI-ml doesn't send any LUN Inquiry commands.

Fix:

If there is a registered target for FC_TYPE_FCP, extend lport's params
(capability) to be target as well, By default lport params are
INITIATOR only. Having this fix, caused initiator to send SCSI LUN
inquiry command to target.

Signed-off-by: Kiran Patil 
Signed-off-by: Robert Love 
Signed-off-by: James Bottomley

[SCSI] libfc: add hook to notify providers of local port changes

2011-02-12T17:02:20+00:00

When an SCST provider is registered, it needs to know what
local ports are available for configuration as targets.

Add a notifier chain that is invoked when any local port
that is added or deleted.

Maintain a global list of local ports and add an
interator function that calls a given function for
every existing local port.  This is used when first
loading a provider.

Signed-off-by: Joe Eykholt 
Signed-off-by: Robert Love 
Signed-off-by: James Bottomley

[SCSI] libfc: add hook for FC-4 provider registration

2011-02-12T17:00:40+00:00

Allow FC-4 provider modules to hook into libfc, mostly for targets.
This should allow any FC-4 module to handle PRLI requests and maintain
process-association states.

Each provider registers its ops with libfc and then will be called for
any incoming PRLI for that FC-4 type on any instance.   The provider
can decide whether to handle that particular instance using any method
it likes, such as ACLs or other configuration information.

A count is kept of the number of successful PRLIs from the remote port.
Providers are called back with an implicit PRLO when the remote port
is about to be deleted or has been reset.

fc_lport_recv_req() now sends incoming FC-4 requests to FC-4 providers,
and there is a built-in provider always registered for handling
incoming ELS requests.

The call to provider recv() routines uses rcu_read_lock()
so that providers aren't removed during the call.  That lock is very
cheap and shouldn't affect any performance on ELS requests.
Providers can rely on the RCU lock to protect a session lookup as well.

Signed-off-by: Joe Eykholt 
Signed-off-by: Robert Love 
Signed-off-by: James Bottomley

[SCSI] libfc: add print of exchange id for debugging fc_fcp

2010-12-21T18:24:25+00:00

This is very helpful to match up the corresponding exchange to the actual I/O
described by the fsp, particularly when you do a side-by-side comparison of
the syslog with your trace.

Signed-off-by: Yi Zou 
Signed-off-by: Robert Love 
Signed-off-by: James Bottomley

[SCSI] libfc: add discovery-private pointer for LLD

2010-07-28T14:05:52+00:00

For VN_port to VN_port mode, FIP will do discovery and needs a
way to find its state from the local port or discovery structure.
It seems that any other LLD that implements its own discovery
would also need something like this.

Replace disc->lport with disc->priv, and use container_of to
find the lport.  We could use disc->priv for that, but
container_of is smaller and faster.

Signed-off-by: Joe Eykholt 
Signed-off-by: Robert Love 
Signed-off-by: James Bottomley

[SCSI] libfc: Move the port_id into lport

2010-05-17T02:22:34+00:00

This patch creates a port_id member in struct fc_lport.
This allows libfc to just deal with fc_lport instances
instead of calling into the fc_host to get the port_id.

This change helps in only using symbols necessary for
operation from the libfc structures. libfc still needs
to change the fc_host_port_id() if the port_id changes
so the presentation layer (scsi_transport_fc) can provide
the user with the correct value, but libfc shouldn't
rely on the presentation layer for operational values.

Signed-off-by: Robert Love 
Signed-off-by: James Bottomley

[SCSI] libfc: set both precision and field with when printing FC IDs

2010-04-11T19:02:41+00:00

Most of the prints of fabric IDs were specified as %6x, which will not
print any leading 0s.  It's nice to see leading 0s for identifiers
like this, which are a fixed length.  This patch sets the precision
modifier as well, making the specifier %6.6x, which forces the
printing of leading 0s.

Signed-off-by: Chris Leech 
Signed-off-by: Robert Love 
Signed-off-by: James Bottomley