diff options
| author | Krishna Gudipati <kgudipat@brocade.com> | 2012-09-21 17:26:07 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-10-07 11:17:27 +0100 |
| commit | e353546e447feb838db2d1b23bac23cb90755993 (patch) | |
| tree | f2762c0aedd4bb0ef4ebdca889c782b180ecdddc /drivers/scsi/bfa/bfa_port.c | |
| parent | 1306e31d417df05c25053c5632b26d1c1b22d1ed (diff) | |
| download | linux-e353546e447feb838db2d1b23bac23cb90755993.tar.bz2 | |
[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>
Diffstat (limited to 'drivers/scsi/bfa/bfa_port.c')
| -rw-r--r-- | drivers/scsi/bfa/bfa_port.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/bfa_port.c b/drivers/scsi/bfa/bfa_port.c index 95e4ad8759ac..8ea7697deb9b 100644 --- a/drivers/scsi/bfa/bfa_port.c +++ b/drivers/scsi/bfa/bfa_port.c @@ -250,6 +250,12 @@ bfa_port_enable(struct bfa_port_s *port, bfa_port_endis_cbfn_t cbfn, return BFA_STATUS_IOC_FAILURE; } + /* if port is d-port enabled, return error */ + if (port->dport_enabled) { + bfa_trc(port, BFA_STATUS_DPORT_ERR); + return BFA_STATUS_DPORT_ERR; + } + if (port->endis_pending) { bfa_trc(port, BFA_STATUS_DEVBUSY); return BFA_STATUS_DEVBUSY; @@ -300,6 +306,12 @@ bfa_port_disable(struct bfa_port_s *port, bfa_port_endis_cbfn_t cbfn, return BFA_STATUS_IOC_FAILURE; } + /* if port is d-port enabled, return error */ + if (port->dport_enabled) { + bfa_trc(port, BFA_STATUS_DPORT_ERR); + return BFA_STATUS_DPORT_ERR; + } + if (port->endis_pending) { bfa_trc(port, BFA_STATUS_DEVBUSY); return BFA_STATUS_DEVBUSY; @@ -431,6 +443,10 @@ bfa_port_notify(void *arg, enum bfa_ioc_event_e event) port->endis_cbfn = NULL; port->endis_pending = BFA_FALSE; } + + /* clear D-port mode */ + if (port->dport_enabled) + bfa_port_set_dportenabled(port, BFA_FALSE); break; default: break; @@ -467,6 +483,7 @@ bfa_port_attach(struct bfa_port_s *port, struct bfa_ioc_s *ioc, port->stats_cbfn = NULL; port->endis_cbfn = NULL; port->pbc_disabled = BFA_FALSE; + port->dport_enabled = BFA_FALSE; bfa_ioc_mbox_regisr(port->ioc, BFI_MC_PORT, bfa_port_isr, port); bfa_q_qe_init(&port->ioc_notify); @@ -483,6 +500,21 @@ bfa_port_attach(struct bfa_port_s *port, struct bfa_ioc_s *ioc, } /* + * bfa_port_set_dportenabled(); + * + * Port module- set pbc disabled flag + * + * @param[in] port - Pointer to the Port module data structure + * + * @return void + */ +void +bfa_port_set_dportenabled(struct bfa_port_s *port, bfa_boolean_t enabled) +{ + port->dport_enabled = enabled; +} + +/* * CEE module specific definitions */ |