[SCSI] bfa: Add diagnostic port (D-Port) support

- Introduced support for D-Port which is a new port mode during which
  link level diagnostics can be run.
- Provided mechanism to dynamically configure D-Port and initiate diagnostic
  tests to isolate any link level issues.
- In D-Port mode, the HBA port does not participate in fabric or login to the
  remote device or run data traffic.
- Diagnostic tests include running various loopback tests in conjunction with
  the attached device.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfa_port.h b/drivers/scsi/bfa/bfa_port.h
index 947f897328d6..2fcab6bc6280 100644
--- a/drivers/scsi/bfa/bfa_port.h
+++ b/drivers/scsi/bfa/bfa_port.h
@@ -45,6 +45,7 @@ struct bfa_port_s {
         bfa_status_t                    endis_status;
         struct bfa_ioc_notify_s         ioc_notify;
         bfa_boolean_t                   pbc_disabled;
+        bfa_boolean_t                   dport_enabled;
         struct bfa_mem_dma_s            port_dma;
 };
 
@@ -66,6 +67,8 @@ bfa_status_t bfa_port_disable(struct bfa_port_s *port,
 u32     bfa_port_meminfo(void);
 void         bfa_port_mem_claim(struct bfa_port_s *port,
                                  u8 *dma_kva, u64 dma_pa);
+void    bfa_port_set_dportenabled(struct bfa_port_s *port,
+                                  bfa_boolean_t enabled);
 
 /*
  * CEE declaration