diff options
| -rw-r--r-- | drivers/scsi/isci/host.h | 19 | ||||
| -rw-r--r-- | drivers/scsi/isci/init.c | 7 | ||||
| -rw-r--r-- | drivers/scsi/isci/phy.c | 18 | ||||
| -rw-r--r-- | drivers/scsi/isci/phy.h | 1 | ||||
| -rw-r--r-- | drivers/scsi/isci/port.c | 84 | ||||
| -rw-r--r-- | drivers/scsi/isci/port.h | 2 | ||||
| -rw-r--r-- | drivers/scsi/isci/remote_device.c | 29 |
7 files changed, 83 insertions, 77 deletions
diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 5477f0fa8233..adbad69d1069 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -187,6 +187,7 @@ struct isci_host { int id; /* unique within a given pci device */ struct isci_phy phys[SCI_MAX_PHYS]; struct isci_port ports[SCI_MAX_PORTS + 1]; /* includes dummy port */ + struct asd_sas_port sas_ports[SCI_MAX_PORTS]; struct sas_ha_struct sas_ha; spinlock_t state_lock; @@ -393,24 +394,6 @@ static inline int sci_remote_device_node_count(struct isci_remote_device *idev) #define sci_controller_clear_invalid_phy(controller, phy) \ ((controller)->invalid_phy_mask &= ~(1 << (phy)->phy_index)) -static inline struct device *sciphy_to_dev(struct isci_phy *iphy) -{ - - if (!iphy || !iphy->isci_port || !iphy->isci_port->isci_host) - return NULL; - - return &iphy->isci_port->isci_host->pdev->dev; -} - -static inline struct device *sciport_to_dev(struct isci_port *iport) -{ - - if (!iport || !iport->isci_host) - return NULL; - - return &iport->isci_host->pdev->dev; -} - static inline struct device *scirdev_to_dev(struct isci_remote_device *idev) { if (!idev || !idev->isci_port || !idev->isci_port->isci_host) diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 7ba236e9fab2..c20fda090423 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -241,18 +241,13 @@ static int isci_register_sas_ha(struct isci_host *isci_host) if (!sas_ports) return -ENOMEM; - /*----------------- Libsas Initialization Stuff---------------------- - * Set various fields in the sas_ha struct: - */ - sas_ha->sas_ha_name = DRV_NAME; sas_ha->lldd_module = THIS_MODULE; sas_ha->sas_addr = &isci_host->phys[0].sas_addr[0]; - /* set the array of phy and port structs. */ for (i = 0; i < SCI_MAX_PHYS; i++) { sas_phys[i] = &isci_host->phys[i].sas_phy; - sas_ports[i] = &isci_host->ports[i].sas_port; + sas_ports[i] = &isci_host->sas_ports[i]; } sas_ha->sas_phy = sas_phys; diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index fe18acfd6eb3..8d412ca689ad 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -67,6 +67,14 @@ enum sas_linkrate sci_phy_linkrate(struct isci_phy *iphy) return iphy->max_negotiated_speed; } +static struct device *sciphy_to_dev(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->pdev->dev; +} + static enum sci_status sci_phy_transport_layer_initialization(struct isci_phy *iphy, struct scu_transport_layer_registers __iomem *reg) @@ -1299,7 +1307,6 @@ 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 +1340,13 @@ 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 +1363,10 @@ 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: { diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index 67699c8e321c..a5e1a9e577b0 100644 --- a/drivers/scsi/isci/phy.h +++ b/drivers/scsi/isci/phy.h @@ -103,7 +103,6 @@ struct isci_phy { struct scu_transport_layer_registers __iomem *transport_layer_registers; struct scu_link_layer_registers __iomem *link_layer_registers; struct asd_sas_phy sas_phy; - struct isci_port *isci_port; u8 sas_addr[SAS_ADDR_SIZE]; union { struct sas_identify_frame iaf; diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 7c6ac58a5c4c..a28c9e6e2806 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -60,6 +60,21 @@ #define SCIC_SDS_PORT_HARD_RESET_TIMEOUT (1000) #define SCU_DUMMY_INDEX (0xFFFF) +static struct device *sciport_to_dev(struct isci_port *iport) +{ + int i = iport->physical_port_index; + struct isci_port *table; + struct isci_host *ihost; + + if (i == SCIC_SDS_DUMMY_PORT) + i = SCI_MAX_PORTS+1; + + table = iport - i; + ihost = container_of(table, typeof(*ihost), ports[0]); + + return &ihost->pdev->dev; +} + static void isci_port_change_state(struct isci_port *iport, enum isci_status status) { unsigned long flags; @@ -165,17 +180,13 @@ static void isci_port_link_up(struct isci_host *isci_host, struct sci_port_properties properties; unsigned long success = true; - BUG_ON(iphy->isci_port != NULL); - - iphy->isci_port = iport; - dev_dbg(&isci_host->pdev->dev, "%s: isci_port = %p\n", __func__, iport); spin_lock_irqsave(&iphy->sas_phy.frame_rcvd_lock, flags); - isci_port_change_state(iphy->isci_port, isci_starting); + isci_port_change_state(iport, isci_starting); sci_port_get_properties(iport, &properties); @@ -269,8 +280,6 @@ static void isci_port_link_down(struct isci_host *isci_host, isci_host->sas_ha.notify_phy_event(&isci_phy->sas_phy, PHYE_LOSS_OF_SIGNAL); - isci_phy->isci_port = NULL; - dev_dbg(&isci_host->pdev->dev, "%s: isci_port = %p - Done\n", __func__, isci_port); } @@ -288,7 +297,6 @@ static void isci_port_ready(struct isci_host *isci_host, struct isci_port *isci_ dev_dbg(&isci_host->pdev->dev, "%s: isci_port = %p\n", __func__, isci_port); - complete_all(&isci_port->start_complete); isci_port_change_state(isci_port, isci_ready); return; } @@ -1645,7 +1653,6 @@ void isci_port_init(struct isci_port *iport, struct isci_host *ihost, int index) INIT_LIST_HEAD(&iport->remote_dev_list); INIT_LIST_HEAD(&iport->domain_dev_list); spin_lock_init(&iport->state_lock); - init_completion(&iport->start_complete); iport->isci_host = ihost; isci_port_change_state(iport, isci_freed); } @@ -1726,24 +1733,55 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor return ret; } -/** - * isci_port_deformed() - This function is called by libsas when a port becomes - * inactive. - * @phy: This parameter specifies the libsas phy with the inactive port. - * - */ void isci_port_deformed(struct asd_sas_phy *phy) { - pr_debug("%s: sas_phy = %p\n", __func__, phy); + struct isci_host *ihost = phy->ha->lldd_ha; + struct isci_port *iport = phy->port->lldd_port; + unsigned long flags; + int i; + + /* we got a port notification on a port that was subsequently + * torn down and libsas is just now catching up + */ + if (!iport) + return; + + spin_lock_irqsave(&ihost->scic_lock, flags); + for (i = 0; i < SCI_MAX_PHYS; i++) { + if (iport->active_phy_mask & 1 << i) + break; + } + spin_unlock_irqrestore(&ihost->scic_lock, flags); + + if (i >= SCI_MAX_PHYS) + dev_dbg(&ihost->pdev->dev, "%s: port: %ld\n", + __func__, (long) (iport - &ihost->ports[0])); } -/** - * isci_port_formed() - This function is called by libsas when a port becomes - * active. - * @phy: This parameter specifies the libsas phy with the active port. - * - */ void isci_port_formed(struct asd_sas_phy *phy) { - pr_debug("%s: sas_phy = %p, sas_port = %p\n", __func__, phy, phy->port); + 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; + unsigned long flags; + int i; + + /* initial ports are formed as the driver is still initializing, + * wait for that process to complete + */ + wait_for_start(ihost); + + spin_lock_irqsave(&ihost->scic_lock, flags); + for (i = 0; i < SCI_MAX_PORTS; i++) { + iport = &ihost->ports[i]; + if (iport->active_phy_mask & 1 << iphy->phy_index) + break; + } + spin_unlock_irqrestore(&ihost->scic_lock, flags); + + if (i >= SCI_MAX_PORTS) + iport = NULL; + + port->lldd_port = iport; } diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 08116090eb70..6b42e84b6955 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -97,11 +97,9 @@ enum isci_status { struct isci_port { enum isci_status status; struct isci_host *isci_host; - struct asd_sas_port sas_port; struct list_head remote_dev_list; spinlock_t state_lock; struct list_head domain_dev_list; - struct completion start_complete; struct completion hard_reset_complete; enum sci_status hard_reset_status; struct sci_base_state_machine sm; diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index dd74b6ceeb82..cff684fc1efc 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -1381,31 +1381,18 @@ void isci_remote_device_gone(struct domain_device *dev) * * status, zero indicates success. */ -int isci_remote_device_found(struct domain_device *domain_dev) +int isci_remote_device_found(struct domain_device *dev) { - struct isci_host *isci_host = dev_to_ihost(domain_dev); - struct isci_port *isci_port; - struct isci_phy *isci_phy; - struct asd_sas_port *sas_port; - struct asd_sas_phy *sas_phy; + struct isci_host *isci_host = dev_to_ihost(dev); + struct isci_port *isci_port = dev->port->lldd_port; struct isci_remote_device *isci_device; enum sci_status status; dev_dbg(&isci_host->pdev->dev, - "%s: domain_device = %p\n", __func__, domain_dev); + "%s: domain_device = %p\n", __func__, dev); - wait_for_start(isci_host); - - sas_port = domain_dev->port; - sas_phy = list_first_entry(&sas_port->phy_list, struct asd_sas_phy, - port_phy_el); - isci_phy = to_iphy(sas_phy); - isci_port = isci_phy->isci_port; - - /* we are being called for a device on this port, - * so it has to come up eventually - */ - wait_for_completion(&isci_port->start_complete); + if (!isci_port) + return -ENODEV; if ((isci_stopping == isci_port_get_state(isci_port)) || (isci_stopped == isci_port_get_state(isci_port))) @@ -1419,7 +1406,7 @@ int isci_remote_device_found(struct domain_device *domain_dev) INIT_LIST_HEAD(&isci_device->node); spin_lock_irq(&isci_host->scic_lock); - isci_device->domain_dev = domain_dev; + isci_device->domain_dev = dev; isci_device->isci_port = isci_port; list_add_tail(&isci_device->node, &isci_port->remote_dev_list); @@ -1432,7 +1419,7 @@ int isci_remote_device_found(struct domain_device *domain_dev) if (status == SCI_SUCCESS) { /* device came up, advertise it to the world */ - domain_dev->lldd_dev = isci_device; + dev->lldd_dev = isci_device; } else isci_put_device(isci_device); spin_unlock_irq(&isci_host->scic_lock); |