[SCSI] isci: improve phy event warnings
isci occasionally spews messages like: isci 0000:03:00.0: sci_phy_event_handler: PHY starting substate machine received unexpected event_code b3940000 ...which is not very helpful, since we don't know which controller, which phy, the exact state, or a decode of the event. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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@ -77,12 +77,17 @@ enum sas_linkrate sci_phy_linkrate(struct isci_phy *iphy)
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return iphy->max_negotiated_speed;
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return iphy->max_negotiated_speed;
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}
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}
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static struct device *sciphy_to_dev(struct isci_phy *iphy)
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static struct isci_host *phy_to_host(struct isci_phy *iphy)
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{
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{
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struct isci_phy *table = iphy - iphy->phy_index;
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struct isci_phy *table = iphy - iphy->phy_index;
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struct isci_host *ihost = container_of(table, typeof(*ihost), phys[0]);
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struct isci_host *ihost = container_of(table, typeof(*ihost), phys[0]);
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return &ihost->pdev->dev;
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return ihost;
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}
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static struct device *sciphy_to_dev(struct isci_phy *iphy)
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{
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return &phy_to_host(iphy)->pdev->dev;
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}
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}
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static enum sci_status
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static enum sci_status
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@ -609,6 +614,60 @@ static void sci_phy_complete_link_training(struct isci_phy *iphy,
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sci_change_state(&iphy->sm, next_state);
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sci_change_state(&iphy->sm, next_state);
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}
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}
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static const char *phy_event_name(u32 event_code)
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{
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switch (scu_get_event_code(event_code)) {
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case SCU_EVENT_PORT_SELECTOR_DETECTED:
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return "port selector";
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case SCU_EVENT_SENT_PORT_SELECTION:
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return "port selection";
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case SCU_EVENT_HARD_RESET_TRANSMITTED:
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return "tx hard reset";
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case SCU_EVENT_HARD_RESET_RECEIVED:
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return "rx hard reset";
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case SCU_EVENT_RECEIVED_IDENTIFY_TIMEOUT:
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return "identify timeout";
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case SCU_EVENT_LINK_FAILURE:
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return "link fail";
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case SCU_EVENT_SATA_SPINUP_HOLD:
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return "sata spinup hold";
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case SCU_EVENT_SAS_15_SSC:
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case SCU_EVENT_SAS_15:
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return "sas 1.5";
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case SCU_EVENT_SAS_30_SSC:
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case SCU_EVENT_SAS_30:
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return "sas 3.0";
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case SCU_EVENT_SAS_60_SSC:
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case SCU_EVENT_SAS_60:
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return "sas 6.0";
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case SCU_EVENT_SATA_15_SSC:
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case SCU_EVENT_SATA_15:
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return "sata 1.5";
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case SCU_EVENT_SATA_30_SSC:
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case SCU_EVENT_SATA_30:
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return "sata 3.0";
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case SCU_EVENT_SATA_60_SSC:
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case SCU_EVENT_SATA_60:
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return "sata 6.0";
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case SCU_EVENT_SAS_PHY_DETECTED:
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return "sas detect";
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case SCU_EVENT_SATA_PHY_DETECTED:
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return "sata detect";
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default:
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return "unknown";
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}
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}
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#define phy_event_dbg(iphy, state, code) \
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dev_dbg(sciphy_to_dev(iphy), "phy-%d:%d: %s event: %s (%x)\n", \
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phy_to_host(iphy)->id, iphy->phy_index, \
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phy_state_name(state), phy_event_name(code), code)
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#define phy_event_warn(iphy, state, code) \
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dev_warn(sciphy_to_dev(iphy), "phy-%d:%d: %s event: %s (%x)\n", \
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phy_to_host(iphy)->id, iphy->phy_index, \
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phy_state_name(state), phy_event_name(code), code)
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enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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{
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{
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enum sci_phy_states state = iphy->sm.current_state_id;
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enum sci_phy_states state = iphy->sm.current_state_id;
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@ -625,11 +684,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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iphy->is_in_link_training = true;
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iphy->is_in_link_training = true;
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break;
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break;
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default:
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default:
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dev_dbg(sciphy_to_dev(iphy),
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phy_event_dbg(iphy, state, event_code);
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"%s: PHY starting substate machine received "
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"unexpected event_code %x\n",
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__func__,
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event_code);
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return SCI_FAILURE;
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return SCI_FAILURE;
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}
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}
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return SCI_SUCCESS;
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return SCI_SUCCESS;
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@ -666,11 +721,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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sci_change_state(&iphy->sm, SCI_PHY_STARTING);
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sci_change_state(&iphy->sm, SCI_PHY_STARTING);
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break;
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break;
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default:
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default:
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dev_warn(sciphy_to_dev(iphy),
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phy_event_warn(iphy, state, event_code);
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"%s: PHY starting substate machine received "
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"unexpected event_code %x\n",
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__func__, event_code);
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return SCI_FAILURE;
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return SCI_FAILURE;
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break;
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break;
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}
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}
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@ -695,10 +746,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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sci_change_state(&iphy->sm, SCI_PHY_STARTING);
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sci_change_state(&iphy->sm, SCI_PHY_STARTING);
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break;
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break;
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default:
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default:
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dev_warn(sciphy_to_dev(iphy),
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phy_event_warn(iphy, state, event_code);
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"%s: PHY starting substate machine received "
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"unexpected event_code %x\n",
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__func__, event_code);
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return SCI_FAILURE;
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return SCI_FAILURE;
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}
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}
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return SCI_SUCCESS;
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return SCI_SUCCESS;
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@ -709,11 +757,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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sci_change_state(&iphy->sm, SCI_PHY_STARTING);
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sci_change_state(&iphy->sm, SCI_PHY_STARTING);
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break;
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break;
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default:
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default:
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dev_warn(sciphy_to_dev(iphy),
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phy_event_warn(iphy, state, event_code);
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"%s: PHY starting substate machine received unexpected "
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"event_code %x\n",
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__func__,
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event_code);
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return SCI_FAILURE;
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return SCI_FAILURE;
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}
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}
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return SCI_SUCCESS;
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return SCI_SUCCESS;
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@ -737,11 +781,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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break;
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break;
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default:
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default:
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dev_warn(sciphy_to_dev(iphy),
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phy_event_warn(iphy, state, event_code);
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"%s: PHY starting substate machine received "
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"unexpected event_code %x\n",
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__func__, event_code);
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return SCI_FAILURE;
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return SCI_FAILURE;
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}
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}
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return SCI_SUCCESS;
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return SCI_SUCCESS;
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@ -769,12 +809,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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sci_phy_start_sas_link_training(iphy);
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sci_phy_start_sas_link_training(iphy);
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break;
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break;
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default:
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default:
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dev_warn(sciphy_to_dev(iphy),
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phy_event_warn(iphy, state, event_code);
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"%s: PHY starting substate machine received "
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"unexpected event_code %x\n",
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__func__,
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event_code);
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return SCI_FAILURE;
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return SCI_FAILURE;
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}
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}
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return SCI_SUCCESS;
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return SCI_SUCCESS;
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@ -811,11 +846,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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sci_phy_start_sas_link_training(iphy);
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sci_phy_start_sas_link_training(iphy);
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break;
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break;
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default:
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default:
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dev_warn(sciphy_to_dev(iphy),
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phy_event_warn(iphy, state, event_code);
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"%s: PHY starting substate machine received "
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"unexpected event_code %x\n",
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__func__, event_code);
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return SCI_FAILURE;
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return SCI_FAILURE;
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}
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}
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@ -833,12 +864,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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break;
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break;
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default:
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default:
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dev_warn(sciphy_to_dev(iphy),
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phy_event_warn(iphy, state, event_code);
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"%s: PHY starting substate machine received "
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"unexpected event_code %x\n",
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__func__,
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event_code);
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return SCI_FAILURE;
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return SCI_FAILURE;
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}
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}
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return SCI_SUCCESS;
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return SCI_SUCCESS;
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@ -856,10 +882,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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iphy->bcn_received_while_port_unassigned = true;
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iphy->bcn_received_while_port_unassigned = true;
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break;
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break;
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default:
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default:
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dev_warn(sciphy_to_dev(iphy),
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phy_event_warn(iphy, state, event_code);
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"%sP SCIC PHY 0x%p ready state machine received "
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"unexpected event_code %x\n",
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__func__, iphy, event_code);
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return SCI_FAILURE_INVALID_STATE;
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return SCI_FAILURE_INVALID_STATE;
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}
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}
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return SCI_SUCCESS;
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return SCI_SUCCESS;
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@ -870,11 +893,7 @@ enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code)
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sci_change_state(&iphy->sm, SCI_PHY_STARTING);
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sci_change_state(&iphy->sm, SCI_PHY_STARTING);
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break;
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break;
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default:
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default:
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dev_warn(sciphy_to_dev(iphy),
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phy_event_warn(iphy, state, event_code);
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"%s: SCIC PHY 0x%p resetting state machine received "
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"unexpected event_code %x\n",
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__func__, iphy, event_code);
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return SCI_FAILURE_INVALID_STATE;
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return SCI_FAILURE_INVALID_STATE;
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break;
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break;
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}
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}
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