diff options
Diffstat (limited to 'drivers/scsi/isci/port.c')
| -rw-r--r-- | drivers/scsi/isci/port.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 0a3aec11809..ed206c5a00a 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -1548,6 +1548,29 @@ static void sci_port_failed_state_enter(struct sci_base_state_machine *sm) isci_port_hard_reset_complete(iport, SCI_FAILURE_TIMEOUT); } +void sci_port_set_hang_detection_timeout(struct isci_port *iport, u32 timeout) +{ + int phy_index; + u32 phy_mask = iport->active_phy_mask; + + if (timeout) + ++iport->hang_detect_users; + else if (iport->hang_detect_users > 1) + --iport->hang_detect_users; + else + iport->hang_detect_users = 0; + + if (timeout || (iport->hang_detect_users == 0)) { + for (phy_index = 0; phy_index < SCI_MAX_PHYS; phy_index++) { + if ((phy_mask >> phy_index) & 1) { + writel(timeout, + &iport->phy_table[phy_index] + ->link_layer_registers + ->link_layer_hang_detection_timeout); + } + } + } +} /* --------------------------------------------------------------------------- */ static const struct sci_base_state sci_port_state_table[] = { @@ -1596,6 +1619,7 @@ void sci_port_construct(struct isci_port *iport, u8 index, iport->started_request_count = 0; iport->assigned_device_count = 0; + iport->hang_detect_users = 0; iport->reserved_rni = SCU_DUMMY_INDEX; iport->reserved_tag = SCI_CONTROLLER_INVALID_IO_TAG; @@ -1733,7 +1757,7 @@ void isci_port_formed(struct asd_sas_phy *phy) struct isci_host *ihost = phy->ha->lldd_ha; struct isci_phy *iphy = to_iphy(phy); struct asd_sas_port *port = phy->port; - struct isci_port *iport; + struct isci_port *iport = NULL; unsigned long flags; int i; |