diff options
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_scsih.c | 153 |
1 files changed, 138 insertions, 15 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 6119975..afd3b82 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -2384,7 +2384,6 @@ _scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc) } } - /** * _scsih_ublock_io_device - set the device state to SDEV_RUNNING * @ioc: per adapter object @@ -3918,6 +3917,134 @@ _scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address) } /** + * _scsih_check_access_status - check access flags + * @ioc: per adapter object + * @sas_address: sas address + * @handle: sas device handle + * @access_flags: errors returned during discovery of the device + * + * Return 0 for success, else failure + */ +static u8 +_scsih_check_access_status(struct MPT2SAS_ADAPTER *ioc, u64 sas_address, + u16 handle, u8 access_status) +{ + u8 rc = 1; + char *desc = NULL; + + switch (access_status) { + case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS: + case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION: + rc = 0; + break; + case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED: + desc = "sata capability failed"; + break; + case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT: + desc = "sata affiliation conflict"; + break; + case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE: + desc = "route not addressable"; + break; + case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE: + desc = "smp error not addressable"; + break; + case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED: + desc = "device blocked"; + break; + case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE: + case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX: + desc = "sata initialization failed"; + break; + default: + desc = "unknown"; + break; + } + + if (!rc) + return 0; + + printk(MPT2SAS_ERR_FMT "discovery errors(%s): sas_address(0x%016llx), " + "handle(0x%04x)\n", ioc->name, desc, + (unsigned long long)sas_address, handle); + return rc; +} + +static void +_scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle) +{ + Mpi2ConfigReply_t mpi_reply; + Mpi2SasDevicePage0_t sas_device_pg0; + struct _sas_device *sas_device; + u32 ioc_status; + unsigned long flags; + u64 sas_address; + struct scsi_target *starget; + struct MPT2SAS_TARGET *sas_target_priv_data; + u32 device_info; + + if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, + MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) + return; + + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; + if (ioc_status != MPI2_IOCSTATUS_SUCCESS) + return; + + /* check if this is end device */ + device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); + if (!(_scsih_is_end_device(device_info))) + return; + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_address = le64_to_cpu(sas_device_pg0.SASAddress); + sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_address); + + if (!sas_device) { + printk(MPT2SAS_ERR_FMT "device is not present " + "handle(0x%04x), no sas_device!!!\n", ioc->name, handle); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + return; + } + + if (unlikely(sas_device->handle != handle)) { + starget = sas_device->starget; + sas_target_priv_data = starget->hostdata; + starget_printk(KERN_INFO, starget, "handle changed from(0x%04x)" + " to (0x%04x)!!!\n", sas_device->handle, handle); + sas_target_priv_data->handle = handle; + sas_device->handle = handle; + } + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + /* check if device is present */ + if (!(le16_to_cpu(sas_device_pg0.Flags) & + MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) { + printk(MPT2SAS_ERR_FMT "device is not present " + "handle(0x%04x), flags!!!\n", ioc->name, handle); + return; + } + + /* check if there were any issues with discovery */ + if (_scsih_check_access_status(ioc, sas_address, handle, + sas_device_pg0.AccessStatus)) + return; + _scsih_ublock_io_device(ioc, handle); + +} + +/** * _scsih_add_device - creating sas device object * @ioc: per adapter object * @handle: sas device handle @@ -3955,6 +4082,8 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd) return -1; } + sas_address = le64_to_cpu(sas_device_pg0.SASAddress); + /* check if device is present */ if (!(le16_to_cpu(sas_device_pg0.Flags) & MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) { @@ -3965,15 +4094,10 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd) return -1; } - /* check if there were any issus with discovery */ - if (sas_device_pg0.AccessStatus == - MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - printk(MPT2SAS_ERR_FMT "AccessStatus = 0x%02x\n", - ioc->name, sas_device_pg0.AccessStatus); + /* check if there were any issues with discovery */ + if (_scsih_check_access_status(ioc, sas_address, handle, + sas_device_pg0.AccessStatus)) return -1; - } /* check if this is end device */ device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); @@ -3983,17 +4107,14 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd) return -1; } - sas_address = le64_to_cpu(sas_device_pg0.SASAddress); spin_lock_irqsave(&ioc->sas_device_lock, flags); sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, sas_address); spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - if (sas_device) { - _scsih_ublock_io_device(ioc, handle); + if (sas_device) return 0; - } sas_device = kzalloc(sizeof(struct _sas_device), GFP_KERNEL); @@ -4308,8 +4429,10 @@ _scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, mpt2sas_transport_update_links(ioc, sas_address, handle, phy_number, link_rate); - if (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5) - _scsih_ublock_io_device(ioc, handle); + if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5) + break; + + _scsih_check_device(ioc, handle); break; case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED: |
