[libvirt] [PATCH v3 09/12] nodedev: Introduce virNodeDeviceGetSCSIHostCaps

We're about to move the call to nodeDeviceSysfsGetSCSIHostCaps from node_device_driver into virnodedeviceobj, so move the guts of the code from the driver specific node_device_linux_sysfs into its own API since virnodedeviceobj cannot callback into the driver. Nothing in the code deals with sysfs anyway, as that's hidden by the various virSCSIHost* and virVHBA* utility function calls. Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; --- src/conf/node_device_conf.c | 82 +++++++++++++++++++++++++++++++ src/conf/node_device_conf.h | 3 ++ src/libvirt_private.syms | 1 + src/node_device/node_device_linux_sysfs.c | 77 +---------------------------- 4 files changed, 87 insertions(+), 76 deletions(-) diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index e5947e6..503b129 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -2483,3 +2483,85 @@ virNodeDeviceDeleteVport(virConnectPtr conn, VIR_FREE(scsi_host_name); return ret; } + + +int +virNodeDeviceGetSCSIHostCaps(virNodeDevCapSCSIHostPtr scsi_host) +{ + char *tmp = NULL; + int ret = -1; + + if ((scsi_host->unique_id = + virSCSIHostGetUniqueId(NULL, scsi_host->host)) < 0) { + VIR_DEBUG("Failed to read unique_id for host%d", scsi_host->host); + scsi_host->unique_id = -1; + } + + VIR_DEBUG("Checking if host%d is an FC HBA", scsi_host->host); + + if (virVHBAPathExists(NULL, scsi_host->host)) { + scsi_host->flags |= VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST; + + if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host, "port_name"))) { + VIR_WARN("Failed to read WWPN for host%d", scsi_host->host); + goto cleanup; + } + VIR_FREE(scsi_host->wwpn); + VIR_STEAL_PTR(scsi_host->wwpn, tmp); + + if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host, "node_name"))) { + VIR_WARN("Failed to read WWNN for host%d", scsi_host->host); + goto cleanup; + } + VIR_FREE(scsi_host->wwnn); + VIR_STEAL_PTR(scsi_host->wwnn, tmp); + + if ((tmp = virVHBAGetConfig(NULL, scsi_host->host, "fabric_name"))) { + VIR_FREE(scsi_host->fabric_wwn); + VIR_STEAL_PTR(scsi_host->fabric_wwn, tmp); + } + } + + if (virVHBAIsVportCapable(NULL, scsi_host->host)) { + scsi_host->flags |= VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS; + + if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host, + "max_npiv_vports"))) { + VIR_WARN("Failed to read max_npiv_vports for host%d", + scsi_host->host); + goto cleanup; + } + + if (virStrToLong_i(tmp, NULL, 10, &scsi_host->max_vports) < 0) { + VIR_WARN("Failed to parse value of max_npiv_vports '%s'", tmp); + goto cleanup; + } + + VIR_FREE(tmp); + if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host, + "npiv_vports_inuse"))) { + VIR_WARN("Failed to read npiv_vports_inuse for host%d", + scsi_host->host); + goto cleanup; + } + + if (virStrToLong_i(tmp, NULL, 10, &scsi_host->vports) < 0) { + VIR_WARN("Failed to parse value of npiv_vports_inuse '%s'", tmp); + goto cleanup; + } + } + + ret = 0; + cleanup: + if (ret < 0) { + /* Clear the two flags in case of producing confusing XML output */ + scsi_host->flags &= ~(VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST | + VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS); + + VIR_FREE(scsi_host->wwnn); + VIR_FREE(scsi_host->wwpn); + VIR_FREE(scsi_host->fabric_wwn); + } + VIR_FREE(tmp); + return ret; +} diff --git a/src/conf/node_device_conf.h b/src/conf/node_device_conf.h index 0a5e731..90c7e1f 100644 --- a/src/conf/node_device_conf.h +++ b/src/conf/node_device_conf.h @@ -408,4 +408,7 @@ int virNodeDeviceDeleteVport(virConnectPtr conn, virStorageAdapterFCHostPtr fchost); +int +virNodeDeviceGetSCSIHostCaps(virNodeDevCapSCSIHostPtr scsi_host); + #endif /* __VIR_NODE_DEVICE_CONF_H__ */ diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index b511feb..33fc9fc 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -680,6 +680,7 @@ virNodeDeviceDefParseNode; virNodeDeviceDefParseString; virNodeDeviceDeleteVport; virNodeDeviceGetParentName; +virNodeDeviceGetSCSIHostCaps; virNodeDeviceGetWWNs; diff --git a/src/node_device/node_device_linux_sysfs.c b/src/node_device/node_device_linux_sysfs.c index e02c384..6f438e5 100644 --- a/src/node_device/node_device_linux_sysfs.c +++ b/src/node_device/node_device_linux_sysfs.c @@ -48,82 +48,7 @@ VIR_LOG_INIT("node_device.node_device_linux_sysfs"); int nodeDeviceSysfsGetSCSIHostCaps(virNodeDevCapSCSIHostPtr scsi_host) { - char *tmp = NULL; - int ret = -1; - - if ((scsi_host->unique_id = - virSCSIHostGetUniqueId(NULL, scsi_host->host)) < 0) { - VIR_DEBUG("Failed to read unique_id for host%d", scsi_host->host); - scsi_host->unique_id = -1; - } - - VIR_DEBUG("Checking if host%d is an FC HBA", scsi_host->host); - - if (virVHBAPathExists(NULL, scsi_host->host)) { - scsi_host->flags |= VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST; - - if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host, "port_name"))) { - VIR_WARN("Failed to read WWPN for host%d", scsi_host->host); - goto cleanup; - } - VIR_FREE(scsi_host->wwpn); - VIR_STEAL_PTR(scsi_host->wwpn, tmp); - - if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host, "node_name"))) { - VIR_WARN("Failed to read WWNN for host%d", scsi_host->host); - goto cleanup; - } - VIR_FREE(scsi_host->wwnn); - VIR_STEAL_PTR(scsi_host->wwnn, tmp); - - if ((tmp = virVHBAGetConfig(NULL, scsi_host->host, "fabric_name"))) { - VIR_FREE(scsi_host->fabric_wwn); - VIR_STEAL_PTR(scsi_host->fabric_wwn, tmp); - } - } - - if (virVHBAIsVportCapable(NULL, scsi_host->host)) { - scsi_host->flags |= VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS; - - if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host, - "max_npiv_vports"))) { - VIR_WARN("Failed to read max_npiv_vports for host%d", - scsi_host->host); - goto cleanup; - } - - if (virStrToLong_i(tmp, NULL, 10, &scsi_host->max_vports) < 0) { - VIR_WARN("Failed to parse value of max_npiv_vports '%s'", tmp); - goto cleanup; - } - - VIR_FREE(tmp); - if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host, - "npiv_vports_inuse"))) { - VIR_WARN("Failed to read npiv_vports_inuse for host%d", - scsi_host->host); - goto cleanup; - } - - if (virStrToLong_i(tmp, NULL, 10, &scsi_host->vports) < 0) { - VIR_WARN("Failed to parse value of npiv_vports_inuse '%s'", tmp); - goto cleanup; - } - } - - ret = 0; - cleanup: - if (ret < 0) { - /* Clear the two flags in case of producing confusing XML output */ - scsi_host->flags &= ~(VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST | - VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS); - - VIR_FREE(scsi_host->wwnn); - VIR_FREE(scsi_host->wwpn); - VIR_FREE(scsi_host->fabric_wwn); - } - VIR_FREE(tmp); - return ret; + return virNodeDeviceGetSCSIHostCaps(scsi_host); } -- 2.9.4