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path: root/drivers/scsi/isci/phy.c
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Diffstat (limited to 'drivers/scsi/isci/phy.c')
-rw-r--r--drivers/scsi/isci/phy.c171
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: {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 23:39:14 +0100