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| author | James Smart <James.Smart@Emulex.Com> | 2009-03-26 13:33:19 -0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-06-12 14:20:05 -0500 |
| commit | 9e4f5e29610162fd426366f3b29e3cc6e575b858 (patch) | |
| tree | aad7fed6b70d87bc9aae10563fa1e71535b11de9 /include/scsi/scsi_host.h | |
| parent | e349792a385ed47390d156155b1a1e19af1bf163 (diff) | |
| download | linux-9e4f5e29610162fd426366f3b29e3cc6e575b858.tar.gz linux-9e4f5e29610162fd426366f3b29e3cc6e575b858.tar.xz | |
[SCSI] FC Pass Thru support
Attached is the ELS/CT pass-thru patch for the FC Transport. The patch
creates a generic framework that lays on top of bsg and the SGIO v4 ioctl
in order to pass transaction requests to LLDD's.
The interface supports the following operations:
On an fc_host basis:
Request login to the specified N_Port_ID, creating an fc_rport.
Request logout of the specified N_Port_ID, deleting an fc_rport
Send ELS request to specified N_Port_ID w/o requiring a login, and
wait for ELS response.
Send CT request to specified N_Port_ID and wait for CT response.
Login is required, but LLDD is allowed to manage login and decide
whether it stays in place after the request is satisfied.
Vendor-Unique request. Allows a LLDD-specific request to be passed
to the LLDD, and the passing of a response back to the application.
On an fc_rport basis:
Send ELS request to nport and wait for ELS response.
Send CT request to nport and wait for CT response.
The patch also exports several headers from include/scsi such that
they can be available to user-space applications:
include/scsi/scsi.h
include/scsi/scsi_netlink.h
include/scsi/scsi_netlink_fc.h
include/scsi/scsi_bsg_fc.h
For further information, refer to the last RFC:
http://marc.info/?l=linux-scsi&m=123436574018579&w=2
Note: Documentation is still spotty and will be added later.
[bharrosh@panasas.com: update for new block API]
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'include/scsi/scsi_host.h')
| -rw-r--r-- | include/scsi/scsi_host.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index d123ca84e732..b62a097b3ecb 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -478,6 +478,15 @@ struct scsi_host_template { * module_init/module_exit. */ struct list_head legacy_hosts; + + /* + * Vendor Identifier associated with the host + * + * Note: When specifying vendor_id, be sure to read the + * Vendor Type and ID formatting requirements specified in + * scsi_netlink.h + */ + u64 vendor_id; }; /* |