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authorJames Smart <James.Smart@Emulex.Com>2009-03-26 20:33:19 +0300
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-06-12 23:20:05 +0400
commit9e4f5e29610162fd426366f3b29e3cc6e575b858 (patch)
treeaad7fed6b70d87bc9aae10563fa1e71535b11de9 /include/scsi/scsi_host.h
parente349792a385ed47390d156155b1a1e19af1bf163 (diff)
downloadlinux-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.h9
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;
};
/*