diff options
author | Martin K. Petersen <martin.petersen@oracle.com> | 2022-12-30 16:59:30 +0000 |
---|---|---|
committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-12-30 16:59:30 +0000 |
commit | 1e49a5387f43e74c5408187d74038ef942a3eb34 (patch) | |
tree | c2ef4336d2e14fb6ce7edf244fa887500c80e7de | |
parent | 1b929c02afd37871d5afb9d498426f83432e71c2 (diff) | |
parent | 5d39b77c33b19089351f74a524fbb828c7d8ba81 (diff) |
Merge patch series "scsi: libsas: Some coding style fixes and cleanups"
Jason Yan <yanaijie@huawei.com> says:
A few coding style fixes and cleanups. There should be no functional
changes in this series besides the debug log prints.
Link: https://lore.kernel.org/r/20221214133808.1649122-1-yanaijie@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
-rw-r--r-- | drivers/scsi/libsas/sas_ata.c | 88 | ||||
-rw-r--r-- | drivers/scsi/libsas/sas_discover.c | 6 | ||||
-rw-r--r-- | drivers/scsi/libsas/sas_expander.c | 125 | ||||
-rw-r--r-- | include/scsi/libsas.h | 1 | ||||
-rw-r--r-- | include/scsi/sas_ata.h | 20 |
5 files changed, 134 insertions, 106 deletions
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 1ccce706167a..9b4a9c3b58f2 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -239,7 +239,17 @@ static struct sas_internal *dev_to_sas_internal(struct domain_device *dev) return to_sas_internal(dev->port->ha->core.shost->transportt); } -static int sas_get_ata_command_set(struct domain_device *dev); +static int sas_get_ata_command_set(struct domain_device *dev) +{ + struct ata_taskfile tf; + + if (dev->dev_type == SAS_SATA_PENDING) + return ATA_DEV_UNKNOWN; + + ata_tf_from_fis(dev->frame_rcvd, &tf); + + return ata_dev_classify(&tf); +} int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy) { @@ -637,20 +647,6 @@ void sas_ata_task_abort(struct sas_task *task) complete(waiting); } -static int sas_get_ata_command_set(struct domain_device *dev) -{ - struct dev_to_host_fis *fis = - (struct dev_to_host_fis *) dev->frame_rcvd; - struct ata_taskfile tf; - - if (dev->dev_type == SAS_SATA_PENDING) - return ATA_DEV_UNKNOWN; - - ata_tf_from_fis((const u8 *)fis, &tf); - - return ata_dev_classify(&tf); -} - void sas_probe_sata(struct asd_sas_port *port) { struct domain_device *dev, *n; @@ -679,6 +675,68 @@ void sas_probe_sata(struct asd_sas_port *port) } +int sas_ata_add_dev(struct domain_device *parent, struct ex_phy *phy, + struct domain_device *child, int phy_id) +{ + struct sas_rphy *rphy; + int ret; + + if (child->linkrate > parent->min_linkrate) { + struct sas_phy *cphy = child->phy; + enum sas_linkrate min_prate = cphy->minimum_linkrate, + parent_min_lrate = parent->min_linkrate, + min_linkrate = (min_prate > parent_min_lrate) ? + parent_min_lrate : 0; + struct sas_phy_linkrates rates = { + .maximum_linkrate = parent->min_linkrate, + .minimum_linkrate = min_linkrate, + }; + + pr_notice("ex %016llx phy%02d SATA device linkrate > min pathway connection rate, attempting to lower device linkrate\n", + SAS_ADDR(child->sas_addr), phy_id); + ret = sas_smp_phy_control(parent, phy_id, + PHY_FUNC_LINK_RESET, &rates); + if (ret) { + pr_err("ex %016llx phy%02d SATA device could not set linkrate (%d)\n", + SAS_ADDR(child->sas_addr), phy_id, ret); + return ret; + } + pr_notice("ex %016llx phy%02d SATA device set linkrate successfully\n", + SAS_ADDR(child->sas_addr), phy_id); + child->linkrate = child->min_linkrate; + } + ret = sas_get_ata_info(child, phy); + if (ret) + return ret; + + sas_init_dev(child); + ret = sas_ata_init(child); + if (ret) + return ret; + + rphy = sas_end_device_alloc(phy->port); + if (!rphy) + return ret; + + rphy->identify.phy_identifier = phy_id; + child->rphy = rphy; + get_device(&rphy->dev); + + list_add_tail(&child->disco_list_node, &parent->port->disco_list); + + ret = sas_discover_sata(child); + if (ret) { + pr_notice("sas_discover_sata() for device %16llx at %016llx:%02d returned 0x%x\n", + SAS_ADDR(child->sas_addr), + SAS_ADDR(parent->sas_addr), phy_id, ret); + sas_rphy_free(child->rphy); + list_del(&child->disco_list_node); + return ret; + } + + return 0; +} + static void sas_ata_flush_pm_eh(struct asd_sas_port *port, const char *func) { struct domain_device *dev, *n; diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index d5bc1314c341..72fdb2e5d047 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -455,14 +455,8 @@ static void sas_discover_domain(struct work_struct *work) break; case SAS_SATA_DEV: case SAS_SATA_PM: -#ifdef CONFIG_SCSI_SAS_ATA error = sas_discover_sata(dev); break; -#else - pr_notice("ATA device seen but CONFIG_SCSI_SAS_ATA=N so cannot attach\n"); - fallthrough; -#endif - /* Fall through - only for the #else condition above. */ default: error = -ENXIO; pr_err("unhandled device %d\n", dev->dev_type); diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index a04cad620e93..dc670304f181 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -751,13 +751,46 @@ static void sas_ex_get_linkrate(struct domain_device *parent, child->pathways = min(child->pathways, parent->pathways); } +static int sas_ex_add_dev(struct domain_device *parent, struct ex_phy *phy, + struct domain_device *child, int phy_id) +{ + struct sas_rphy *rphy; + int res; + + child->dev_type = SAS_END_DEVICE; + rphy = sas_end_device_alloc(phy->port); + if (!rphy) + return -ENOMEM; + + child->tproto = phy->attached_tproto; + sas_init_dev(child); + + child->rphy = rphy; + get_device(&rphy->dev); + rphy->identify.phy_identifier = phy_id; + sas_fill_in_rphy(child, rphy); + + list_add_tail(&child->disco_list_node, &parent->port->disco_list); + + res = sas_notify_lldd_dev_found(child); + if (res) { + pr_notice("notify lldd for device %016llx at %016llx:%02d returned 0x%x\n", + SAS_ADDR(child->sas_addr), + SAS_ADDR(parent->sas_addr), phy_id, res); + sas_rphy_free(child->rphy); + list_del(&child->disco_list_node); + return res; + } + + return 0; +} + static struct domain_device *sas_ex_discover_end_dev( struct domain_device *parent, int phy_id) { struct expander_device *parent_ex = &parent->ex_dev; struct ex_phy *phy = &parent_ex->ex_phy[phy_id]; struct domain_device *child = NULL; - struct sas_rphy *rphy; int res; if (phy->attached_sata_host || phy->attached_sata_ps) @@ -785,99 +818,23 @@ static struct domain_device *sas_ex_discover_end_dev( sas_ex_get_linkrate(parent, child, phy); sas_device_set_phy(child, phy->port); -#ifdef CONFIG_SCSI_SAS_ATA if ((phy->attached_tproto & SAS_PROTOCOL_STP) || phy->attached_sata_dev) { - if (child->linkrate > parent->min_linkrate) { - struct sas_phy *cphy = child->phy; - enum sas_linkrate min_prate = cphy->minimum_linkrate, - parent_min_lrate = parent->min_linkrate, - min_linkrate = (min_prate > parent_min_lrate) ? - parent_min_lrate : 0; - struct sas_phy_linkrates rates = { - .maximum_linkrate = parent->min_linkrate, - .minimum_linkrate = min_linkrate, - }; - int ret; - - pr_notice("ex %016llx phy%02d SATA device linkrate > min pathway connection rate, attempting to lower device linkrate\n", - SAS_ADDR(child->sas_addr), phy_id); - ret = sas_smp_phy_control(parent, phy_id, - PHY_FUNC_LINK_RESET, &rates); - if (ret) { - pr_err("ex %016llx phy%02d SATA device could not set linkrate (%d)\n", - SAS_ADDR(child->sas_addr), phy_id, ret); - goto out_free; - } - pr_notice("ex %016llx phy%02d SATA device set linkrate successfully\n", - SAS_ADDR(child->sas_addr), phy_id); - child->linkrate = child->min_linkrate; - } - res = sas_get_ata_info(child, phy); - if (res) - goto out_free; - - sas_init_dev(child); - res = sas_ata_init(child); - if (res) - goto out_free; - rphy = sas_end_device_alloc(phy->port); - if (!rphy) - goto out_free; - rphy->identify.phy_identifier = phy_id; - - child->rphy = rphy; - get_device(&rphy->dev); - - list_add_tail(&child->disco_list_node, &parent->port->disco_list); - - res = sas_discover_sata(child); - if (res) { - pr_notice("sas_discover_sata() for device %16llx at %016llx:%02d returned 0x%x\n", - SAS_ADDR(child->sas_addr), - SAS_ADDR(parent->sas_addr), phy_id, res); - goto out_list_del; - } - } else -#endif - if (phy->attached_tproto & SAS_PROTOCOL_SSP) { - child->dev_type = SAS_END_DEVICE; - rphy = sas_end_device_alloc(phy->port); - /* FIXME: error handling */ - if (unlikely(!rphy)) - goto out_free; - child->tproto = phy->attached_tproto; - sas_init_dev(child); - - child->rphy = rphy; - get_device(&rphy->dev); - rphy->identify.phy_identifier = phy_id; - sas_fill_in_rphy(child, rphy); - - list_add_tail(&child->disco_list_node, &parent->port->disco_list); - - res = sas_discover_end_dev(child); - if (res) { - pr_notice("sas_discover_end_dev() for device %016llx at %016llx:%02d returned 0x%x\n", - SAS_ADDR(child->sas_addr), - SAS_ADDR(parent->sas_addr), phy_id, res); - goto out_list_del; - } + res = sas_ata_add_dev(parent, phy, child, phy_id); + } else if (phy->attached_tproto & SAS_PROTOCOL_SSP) { + res = sas_ex_add_dev(parent, phy, child, phy_id); } else { pr_notice("target proto 0x%x at %016llx:0x%x not handled\n", phy->attached_tproto, SAS_ADDR(parent->sas_addr), phy_id); - goto out_free; + res = -ENODEV; } + if (res) + goto out_free; + list_add_tail(&child->siblings, &parent_ex->children); return child; - out_list_del: - sas_rphy_free(child->rphy); - list_del(&child->disco_list_node); - spin_lock_irq(&parent->port->dev_list_lock); - list_del(&child->dev_list_node); - spin_unlock_irq(&parent->port->dev_list_lock); out_free: sas_port_delete(phy->port); out_err: diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index 1aee3d0ebbb2..159823e0afbf 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -735,7 +735,6 @@ void sas_unregister_domain_devices(struct asd_sas_port *port, int gone); void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *); void sas_discover_event(struct asd_sas_port *, enum discover_event ev); -int sas_discover_sata(struct domain_device *); int sas_discover_end_dev(struct domain_device *); void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *); diff --git a/include/scsi/sas_ata.h b/include/scsi/sas_ata.h index 9c927d46f136..2f8c719840a6 100644 --- a/include/scsi/sas_ata.h +++ b/include/scsi/sas_ata.h @@ -36,8 +36,15 @@ void sas_ata_device_link_abort(struct domain_device *dev, bool force_reset); int sas_execute_ata_cmd(struct domain_device *device, u8 *fis, int force_phy_id); int smp_ata_check_ready_type(struct ata_link *link); +int sas_discover_sata(struct domain_device *dev); +int sas_ata_add_dev(struct domain_device *parent, struct ex_phy *phy, + struct domain_device *child, int phy_id); #else +static inline void sas_ata_disabled_notice(void) +{ + pr_notice_once("ATA device seen but CONFIG_SCSI_SAS_ATA=N\n"); +} static inline int dev_is_sata(struct domain_device *dev) { @@ -103,6 +110,19 @@ static inline int smp_ata_check_ready_type(struct ata_link *link) { return 0; } + +static inline int sas_discover_sata(struct domain_device *dev) +{ + sas_ata_disabled_notice(); + return -ENXIO; +} + +static inline int sas_ata_add_dev(struct domain_device *parent, struct ex_phy *phy, + struct domain_device *child, int phy_id) +{ + sas_ata_disabled_notice(); + return -ENODEV; +} #endif #endif /* _SAS_ATA_H_ */ |