diff options
Diffstat (limited to 'drivers/scsi/isci/phy.c')
| -rw-r--r-- | drivers/scsi/isci/phy.c | 171 |
1 files changed, 103 insertions, 68 deletions
diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index fe18acfd6eb3..fab3586840b5 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -59,6 +59,16 @@ #include "scu_event_codes.h" #include "probe_roms.h" +#undef C +#define C(a) (#a) +static const char *phy_state_name(enum sci_phy_states state) +{ + static const char * const strings[] = PHY_STATES; + + return strings[state]; +} +#undef C + /* Maximum arbitration wait time in micro-seconds */ #define SCIC_SDS_PHY_MAX_ARBITRATION_WAIT_TIME (700) @@ -67,6 +77,19 @@ enum sas_linkrate sci_phy_linkrate(struct isci_phy *iphy) return iphy->max_negotiated_speed; } +static struct isci_host *phy_to_host(struct isci_phy *iphy) +{ + struct isci_phy *table = iphy - iphy->phy_index; + struct isci_host *ihost = container_of(table, typeof(*ihost), phys[0]); + + return ihost; +} + +static struct device *sciphy_to_dev(struct isci_phy *iphy) +{ + return &phy_to_host(iphy)->pdev->dev; +} + static enum sci_status sci_phy_transport_layer_initialization(struct isci_phy *iphy, struct scu_transport_layer_registers __iomem *reg) @@ -446,8 +469,8 @@ enum sci_status sci_phy_start(struct isci_phy *iphy) enum sci_phy_states state = iphy->sm.current_state_id; if (state != SCI_PHY_STOPPED) { - dev_dbg(sciphy_to_dev(iphy), - "%s: in wrong state: %d\n", __func__, state); + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %s\n", + __func__, phy_state_name(state)); return SCI_FAILURE_INVALID_STATE; } @@ -472,8 +495,8 @@ enum sci_status sci_phy_stop(struct isci_phy *iphy) case SCI_PHY_READY: break; default: - dev_dbg(sciphy_to_dev(iphy), - "%s: in wrong state: %d\n", __func__, state); + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %s\n", + __func__, phy_state_name(state)); return SCI_FAILURE_INVALID_STATE; } @@ -486,8 +509,8 @@ enum sci_status sci_phy_reset(struct isci_phy *iphy) enum sci_phy_states state = iphy->sm.current_state_id; if (state != SCI_PHY_READY) { - dev_dbg(sciphy_to_dev(iphy), - "%s: in wrong state: %d\n", __func__, state); + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %s\n", + __func__, phy_state_name(state)); return SCI_FAILURE_INVALID_STATE; } @@ -536,8 +559,8 @@ enum sci_status sci_phy_consume_power_handler(struct isci_phy *iphy) return SCI_SUCCESS; } default: - dev_dbg(sciphy_to_dev(iphy), - "%s: in wrong state: %d\n", __func__, state); + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %s\n", + __func__, phy_state_name(state)); return SCI_FAILURE_INVALID_STATE; } } @@ -591,6 +614,60 @@ static void sci_phy_complete_link_training(struct isci_phy *iphy, sci_change_state(&iphy->sm, next_state); } +static const char *phy_event_name(u32 event_code) +{ + switch (scu_get_event_code(event_code)) { + case SCU_EVENT_PORT_SELECTOR_DETECTED: + return "port selector"; + case SCU_EVENT_SENT_PORT_SELECTION: + return "port selection"; + case SCU_EVENT_HARD_RESET_TRANSMITTED: + return "tx hard reset"; + case SCU_EVENT_HARD_RESET_RECEIVED: + return "rx hard reset"; + case SCU_EVENT_RECEIVED_IDENTIFY_TIMEOUT: + return "identify timeout"; + case SCU_EVENT_LINK_FAILURE: + return "link fail"; + case SCU_EVENT_SATA_SPINUP_HOLD: + return "sata spinup hold"; + case SCU_EVENT_SAS_15_SSC: + case SCU_EVENT_SAS_15: + return "sas 1.5"; + case SCU_EVENT_SAS_30_SSC: + case SCU_EVENT_SAS_30: + return "sas 3.0"; + case SCU_EVENT_SAS_60_SSC: + case SCU_EVENT_SAS_60: + return "sas 6.0"; + case SCU_EVENT_SATA_15_SSC: + case SCU_EVENT_SATA_15: + return "sata 1.5"; + case SCU_EVENT_SATA_30_SSC: + case SCU_EVENT_SATA_30: + return "sata 3.0"; + case SCU_EVENT_SATA_60_SSC: + case SCU_EVENT_SATA_60: + return "sata 6.0"; + case SCU_EVENT_SAS_PHY_DETECTED: + return "sas detect"; + case SCU_EVENT_SATA_PHY_DETECTED: + return "sata detect"; + default: + return "unknown"; + } +} + +#define phy_event_dbg(iphy, state, code) \ + dev_dbg(sciphy_to_dev(iphy), "phy-%d:%d: %s event: %s (%x)\n", \ + phy_to_host(iphy)->id, iphy->phy_index, \ + phy_state_name(state), phy_event_name(code), code) + +#define phy_event_warn(iphy, state, code) \ + dev_warn(sciphy_to_dev(iphy), "phy-%d:%d: %s event: %s (%x)\n", \ + phy_to_host(iphy)->id, iphy->phy_index, \ + phy_state_name(state), phy_event_name(code), code) + enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) { enum sci_phy_states state = iphy->sm.current_state_id; @@ -607,11 +684,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) iphy->is_in_link_training = true; break; default: - dev_dbg(sciphy_to_dev(iphy), - "%s: PHY starting substate machine received " - "unexpected event_code %x\n", - __func__, - event_code); + phy_event_dbg(iphy, state, event_code); return SCI_FAILURE; } return SCI_SUCCESS; @@ -648,11 +721,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; default: - dev_warn(sciphy_to_dev(iphy), - "%s: PHY starting substate machine received " - "unexpected event_code %x\n", - __func__, event_code); - + phy_event_warn(iphy, state, event_code); return SCI_FAILURE; break; } @@ -677,10 +746,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; default: - dev_warn(sciphy_to_dev(iphy), - "%s: PHY starting substate machine received " - "unexpected event_code %x\n", - __func__, event_code); + phy_event_warn(iphy, state, event_code); return SCI_FAILURE; } return SCI_SUCCESS; @@ -691,11 +757,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; default: - dev_warn(sciphy_to_dev(iphy), - "%s: PHY starting substate machine received unexpected " - "event_code %x\n", - __func__, - event_code); + phy_event_warn(iphy, state, event_code); return SCI_FAILURE; } return SCI_SUCCESS; @@ -719,11 +781,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) break; default: - dev_warn(sciphy_to_dev(iphy), - "%s: PHY starting substate machine received " - "unexpected event_code %x\n", - __func__, event_code); - + phy_event_warn(iphy, state, event_code); return SCI_FAILURE; } return SCI_SUCCESS; @@ -751,12 +809,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) sci_phy_start_sas_link_training(iphy); break; default: - dev_warn(sciphy_to_dev(iphy), - "%s: PHY starting substate machine received " - "unexpected event_code %x\n", - __func__, - event_code); - + phy_event_warn(iphy, state, event_code); return SCI_FAILURE; } return SCI_SUCCESS; @@ -793,11 +846,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) sci_phy_start_sas_link_training(iphy); break; default: - dev_warn(sciphy_to_dev(iphy), - "%s: PHY starting substate machine received " - "unexpected event_code %x\n", - __func__, event_code); - + phy_event_warn(iphy, state, event_code); return SCI_FAILURE; } @@ -815,12 +864,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) break; default: - dev_warn(sciphy_to_dev(iphy), - "%s: PHY starting substate machine received " - "unexpected event_code %x\n", - __func__, - event_code); - + phy_event_warn(iphy, state, event_code); return SCI_FAILURE; } return SCI_SUCCESS; @@ -838,10 +882,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) iphy->bcn_received_while_port_unassigned = true; break; default: - dev_warn(sciphy_to_dev(iphy), - "%sP SCIC PHY 0x%p ready state machine received " - "unexpected event_code %x\n", - __func__, iphy, event_code); + phy_event_warn(iphy, state, event_code); return SCI_FAILURE_INVALID_STATE; } return SCI_SUCCESS; @@ -852,18 +893,14 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; default: - dev_warn(sciphy_to_dev(iphy), - "%s: SCIC PHY 0x%p resetting state machine received " - "unexpected event_code %x\n", - __func__, iphy, event_code); - + phy_event_warn(iphy, state, event_code); return SCI_FAILURE_INVALID_STATE; break; } return SCI_SUCCESS; default: - dev_dbg(sciphy_to_dev(iphy), - "%s: in wrong state: %d\n", __func__, state); + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %s\n", + __func__, phy_state_name(state)); return SCI_FAILURE_INVALID_STATE; } } @@ -956,8 +993,8 @@ enum sci_status sci_phy_frame_handler(struct isci_phy *iphy, u32 frame_index) return result; } default: - dev_dbg(sciphy_to_dev(iphy), - "%s: in wrong state: %d\n", __func__, state); + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %s\n", + __func__, phy_state_name(state)); return SCI_FAILURE_INVALID_STATE; } @@ -1299,7 +1336,6 @@ void isci_phy_init(struct isci_phy *iphy, struct isci_host *ihost, int index) sas_addr = cpu_to_be64(sci_sas_addr); memcpy(iphy->sas_addr, &sas_addr, sizeof(sas_addr)); - iphy->isci_port = NULL; iphy->sas_phy.enabled = 0; iphy->sas_phy.id = index; iphy->sas_phy.sas_addr = &iphy->sas_addr[0]; @@ -1333,13 +1369,13 @@ int isci_phy_control(struct asd_sas_phy *sas_phy, { int ret = 0; struct isci_phy *iphy = sas_phy->lldd_phy; - struct isci_port *iport = iphy->isci_port; + struct asd_sas_port *port = sas_phy->port; struct isci_host *ihost = sas_phy->ha->lldd_ha; unsigned long flags; dev_dbg(&ihost->pdev->dev, "%s: phy %p; func %d; buf %p; isci phy %p, port %p\n", - __func__, sas_phy, func, buf, iphy, iport); + __func__, sas_phy, func, buf, iphy, port); switch (func) { case PHY_FUNC_DISABLE: @@ -1356,11 +1392,10 @@ int isci_phy_control(struct asd_sas_phy *sas_phy, break; case PHY_FUNC_HARD_RESET: - if (!iport) + if (!port) return -ENODEV; - /* Perform the port reset. */ - ret = isci_port_perform_hard_reset(ihost, iport, iphy); + ret = isci_port_perform_hard_reset(ihost, port->lldd_port, iphy); break; case PHY_FUNC_GET_EVENTS: { |