[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>
diff --git a/drivers/scsi/bfa/bfi.h b/drivers/scsi/bfa/bfi.h
index e6269c2..6f1dd9e 100644
--- a/drivers/scsi/bfa/bfi.h
+++ b/drivers/scsi/bfa/bfi.h
@@ -960,6 +960,7 @@
BFI_DIAG_H2I_TEMPSENSOR = 4,
BFI_DIAG_H2I_LEDTEST = 5,
BFI_DIAG_H2I_QTEST = 6,
+ BFI_DIAG_H2I_DPORT = 7,
};
enum bfi_diag_i2h {
@@ -969,6 +970,7 @@
BFI_DIAG_I2H_TEMPSENSOR = BFA_I2HM(BFI_DIAG_H2I_TEMPSENSOR),
BFI_DIAG_I2H_LEDTEST = BFA_I2HM(BFI_DIAG_H2I_LEDTEST),
BFI_DIAG_I2H_QTEST = BFA_I2HM(BFI_DIAG_H2I_QTEST),
+ BFI_DIAG_I2H_DPORT = BFA_I2HM(BFI_DIAG_H2I_DPORT),
};
#define BFI_DIAG_MAX_SGES 2
@@ -1055,6 +1057,23 @@
#define bfi_diag_qtest_rsp_t struct bfi_diag_qtest_req_s
/*
+ * D-port test
+ */
+enum bfi_dport_req {
+ BFI_DPORT_DISABLE = 0, /* disable dport request */
+ BFI_DPORT_ENABLE = 1, /* enable dport request */
+};
+
+struct bfi_diag_dport_req_s {
+ struct bfi_mhdr_s mh; /* 4 bytes */
+ u8 req; /* request 1: enable 0: disable */
+ u8 status; /* reply status */
+ u8 rsvd[2];
+ u32 msgtag; /* msgtag for reply */
+};
+#define bfi_diag_dport_rsp_t struct bfi_diag_dport_req_s
+
+/*
* PHY module specific
*/
enum bfi_phy_h2i_msgs_e {