linux.git/include/scsi, branch v2.6.29-rc2

[SCSI] iscsi_tcp: make padbuf non-static

2009-01-13T16:41:34+00:00

virt_to_page() call should not be used on kernel text and data
addresses.  virt_to_page() is used by sg_init_one(). So change padbuf
to be allocated within iscsi_segment.

Signed-off-by: Karen Xie 
Acked-by: Mike Christie 
Signed-off-by: James Bottomley

[SCSI] fc transport: restore missing dev_loss_tmo callback to LLDD

2009-01-06T15:43:33+00:00

When we reworked the transport for the rport lifetimes, in cases where the
rport was reused as a container for tgt id bindings, we inadvertantly
removed the callback to the driver indicating that dev_loss_tmo had fired.

This patch restores that functionality.

Signed-off-by: James Smart 
Signed-off-by: James Bottomley

[SCSI] fcoe: Fibre Channel over Ethernet

2008-12-29T17:24:33+00:00

Encapsulation protocol for running Fibre Channel over Ethernet interfaces.
Creates virtual Fibre Channel host adapters using libfc.

This layer is the LLD to the scsi-ml. It allocates the Scsi_Host, utilizes
libfc for Fibre Channel protocol processing and interacts with netdev to
send/receive Ethernet packets.

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

[SCSI] libfc: A modular Fibre Channel library

2008-12-29T17:24:33+00:00

libFC is composed of 4 blocks supported by an exchange manager
and a framing library. The upper 4 layers are fc_lport, fc_disc,
fc_rport and fc_fcp. A LLD that uses libfc could choose to
either use libfc's block, or using the transport template
defined in libfc.h, override one or more blocks with its own
implementation.

The EM (Exchange Manager) manages exhcanges/sequences for all
commands- ELS, CT and FCP.

The framing library frames ELS and CT commands.

The fc_lport block manages the library's representation of the
host's FC enabled ports.

The fc_disc block manages discovery of targets as well as
handling changes that occur in the FC fabric (via. RSCN events).

The fc_rport block manages the library's representation of other
entities in the FC fabric. Currently the library uses this block
for targets, its peer when in point-to-point mode and the
directory server, but can be extended for other entities if
needed.

The fc_fcp block interacts with the scsi-ml and handles all
I/O.

Signed-off-by: Robert Love 
[jejb: added include of delay.h to fix ppc64 compile prob spotted by sfr]
Signed-off-by: James Bottomley

[SCSI] FC protocol definition header files

2008-12-29T17:24:32+00:00

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

[SCSI] add residual argument to scsi_execute and scsi_execute_req

2008-12-29T17:24:24+00:00

scsi_execute() and scsi_execute_req() discard the residual length
information. Some callers need it. This adds residual argument
(optional) to scsi_execute and scsi_execute_req.

Signed-off-by: FUJITA Tomonori 
Signed-off-by: James Bottomley

[SCSI] libiscsi_tcp: support padding offload

2008-12-29T17:24:23+00:00

cxgb3i does not offload the processing of the header,
but it will always process the padding. This patch
adds a padding offload flag to detect when the LLD
supports this.

The patch also modifies the header processing so that
we do not try to read/bypass the header dugest in the
skb. cxgb3i will not include it with the header like
with other offload cards.

Signed-off-by: Mike Christie 
Signed-off-by: James Bottomley

[SCSI] libiscsi: pass opcode into alloc_pdu callout

2008-12-29T17:24:23+00:00

We do not need to allocate a itt for data_out, so this
passes the opcode to the alloc_pdu callout.

Signed-off-by: Mike Christie 
Signed-off-by: James Bottomley

[SCSI] libiscsi: allow drivers to modify the itt sent to the target

2008-12-29T17:24:22+00:00

bnx2i and cxgb3i need to encode LLD info in the itt so that
the firmware/hardware can process the pdu. This patch allows
the LLDs to encode info in the task->hdr->itt that they
setup in the alloc_pdu callout (any resources that are allocated
can be freed with the pdu in the cleanup_task callout). If
the LLD encodes info in the itt they should implement a
parse_pdu_itt callout. If parse_pdu_itt is not implemented
libiscsi will do the right thing for the LLD.

Signed-off-by: Mike Christie 
Signed-off-by: James Bottomley

[SCSI] iscsi_tcp: split module into lib and lld

2008-12-29T17:24:22+00:00

As explained in the previous mails, cxgb3i needs iscsi_tcp's
r2t/data_out and data_in procesing so this just moves functions
that both drivers want to use to a new module libiscsi_tcp. The
next patch will hook iscsi_tcp in.

Signed-off-by: Mike Christie 
Signed-off-by: James Bottomley