We recently started to enforce certain guideline rule a bit more, e.g. functions delimited by 2 newlines in *.c, by 1 newline in *.h, return types on a separate line, etc. This patch adjusts these issues in all nodedev modules. Signed-off-by: Erik Skultety <eskultet@redhat.com> --- src/node_device/node_device_driver.c | 29 +++- src/node_device/node_device_driver.h | 82 +++++++---- src/node_device/node_device_hal.c | 9 ++ src/node_device/node_device_linux_sysfs.c | 1 + src/node_device/node_device_linux_sysfs.h | 9 +- src/node_device/node_device_udev.c | 233 ++++++++++++++++++------------ 6 files changed, 238 insertions(+), 125 deletions(-) diff --git a/src/node_device/node_device_driver.c b/src/node_device/node_device_driver.c index 99f7bc5476..9b1c5bb5e9 100644 --- a/src/node_device/node_device_driver.c +++ b/src/node_device/node_device_driver.c @@ -47,7 +47,8 @@ virNodeDeviceDriverStatePtr driver; -static int update_caps(virNodeDeviceObjPtr dev) +static int +update_caps(virNodeDeviceObjPtr dev) { virNodeDevCapsDefPtr cap = dev->def->caps; @@ -101,7 +102,8 @@ static int update_caps(virNodeDeviceObjPtr dev) * the driver name for a device each time its entry is used, both for * udev *and* HAL backends. */ -static int update_driver_name(virNodeDeviceObjPtr dev) +static int +update_driver_name(virNodeDeviceObjPtr dev) { char *driver_link = NULL; char *devpath = NULL; @@ -138,22 +140,28 @@ static int update_driver_name(virNodeDeviceObjPtr dev) } #else /* XXX: Implement me for non-linux */ -static int update_driver_name(virNodeDeviceObjPtr dev ATTRIBUTE_UNUSED) +static int +update_driver_name(virNodeDeviceObjPtr dev ATTRIBUTE_UNUSED) { return 0; } #endif -void nodeDeviceLock(void) +void +nodeDeviceLock(void) { virMutexLock(&driver->lock); } -void nodeDeviceUnlock(void) + + +void +nodeDeviceUnlock(void) { virMutexUnlock(&driver->lock); } + int nodeNumOfDevices(virConnectPtr conn, const char *cap, @@ -182,6 +190,7 @@ nodeNumOfDevices(virConnectPtr conn, return ndevs; } + int nodeListDevices(virConnectPtr conn, const char *cap, @@ -222,6 +231,7 @@ nodeListDevices(virConnectPtr conn, return -1; } + int nodeConnectListAllNodeDevices(virConnectPtr conn, virNodeDevicePtr **devices, @@ -242,6 +252,7 @@ nodeConnectListAllNodeDevices(virConnectPtr conn, return ret; } + virNodeDevicePtr nodeDeviceLookupByName(virConnectPtr conn, const char *name) { @@ -500,6 +511,7 @@ nodeDeviceListCaps(virNodeDevicePtr dev, char **const names, int maxnames) return ret; } + static int get_time(time_t *t) { @@ -565,6 +577,7 @@ find_new_device(virConnectPtr conn, const char *wwnn, const char *wwpn) return dev; } + virNodeDevicePtr nodeDeviceCreateXML(virConnectPtr conn, const char *xmlDesc, @@ -663,6 +676,7 @@ nodeDeviceDestroy(virNodeDevicePtr dev) return ret; } + int nodeConnectNodeDeviceEventRegisterAny(virConnectPtr conn, virNodeDevicePtr dev, @@ -684,6 +698,7 @@ nodeConnectNodeDeviceEventRegisterAny(virConnectPtr conn, return callbackID; } + int nodeConnectNodeDeviceEventDeregisterAny(virConnectPtr conn, int callbackID) @@ -704,7 +719,9 @@ nodeConnectNodeDeviceEventDeregisterAny(virConnectPtr conn, return ret; } -int nodedevRegister(void) + +int +nodedevRegister(void) { #ifdef WITH_UDEV return udevNodeRegister(); diff --git a/src/node_device/node_device_driver.h b/src/node_device/node_device_driver.h index bc8af8a9e7..0f55e7b71e 100644 --- a/src/node_device/node_device_driver.h +++ b/src/node_device/node_device_driver.h @@ -30,37 +30,67 @@ # define LINUX_NEW_DEVICE_WAIT_TIME 60 +extern virNodeDeviceDriverStatePtr driver; + # ifdef WITH_HAL -int halNodeRegister(void); +int +halNodeRegister(void); # endif # ifdef WITH_UDEV -int udevNodeRegister(void); +int +udevNodeRegister(void); # endif -void nodeDeviceLock(void); -void nodeDeviceUnlock(void); - -extern virNodeDeviceDriverStatePtr driver; - -int nodedevRegister(void); - -int nodeNumOfDevices(virConnectPtr conn, const char *cap, unsigned int flags); -int nodeListDevices(virConnectPtr conn, const char *cap, char **const names, - int maxnames, unsigned int flags); -int nodeConnectListAllNodeDevices(virConnectPtr conn, - virNodeDevicePtr **devices, - unsigned int flags); -virNodeDevicePtr nodeDeviceLookupByName(virConnectPtr conn, const char *name); -virNodeDevicePtr nodeDeviceLookupSCSIHostByWWN(virConnectPtr conn, - const char *wwnn, - const char *wwpn, - unsigned int flags); -char *nodeDeviceGetXMLDesc(virNodeDevicePtr dev, unsigned int flags); -char *nodeDeviceGetParent(virNodeDevicePtr dev); -int nodeDeviceNumOfCaps(virNodeDevicePtr dev); -int nodeDeviceListCaps(virNodeDevicePtr dev, char **const names, int maxnames); -virNodeDevicePtr nodeDeviceCreateXML(virConnectPtr conn, - const char *xmlDesc, unsigned int flags); +void +nodeDeviceLock(void); + +void +nodeDeviceUnlock(void); + +int +nodedevRegister(void); + +int +nodeNumOfDevices(virConnectPtr conn, const char *cap, unsigned int flags); + +int +nodeListDevices(virConnectPtr conn, + const char *cap, + char **const names, + int maxnames, + unsigned int flags); + +int +nodeConnectListAllNodeDevices(virConnectPtr conn, + virNodeDevicePtr **devices, + unsigned int flags); + +virNodeDevicePtr +nodeDeviceLookupByName(virConnectPtr conn, const char *name); + +virNodeDevicePtr +nodeDeviceLookupSCSIHostByWWN(virConnectPtr conn, + const char *wwnn, + const char *wwpn, + unsigned int flags); + +char * +nodeDeviceGetXMLDesc(virNodeDevicePtr dev, unsigned int flags); + +char * +nodeDeviceGetParent(virNodeDevicePtr dev); + +int +nodeDeviceNumOfCaps(virNodeDevicePtr dev); + +int +nodeDeviceListCaps(virNodeDevicePtr dev, char **const names, int maxnames); + +virNodeDevicePtr +nodeDeviceCreateXML(virConnectPtr conn, + const char *xmlDesc, + unsigned int flags); + int nodeDeviceDestroy(virNodeDevicePtr dev); int diff --git a/src/node_device/node_device_hal.c b/src/node_device/node_device_hal.c index 81e5ecc41d..5339218775 100644 --- a/src/node_device/node_device_hal.c +++ b/src/node_device/node_device_hal.c @@ -84,6 +84,7 @@ get_str_prop(LibHalContext *ctxt, const char *udi, return -1; } + static int get_int_prop(LibHalContext *ctxt, const char *udi, const char *prop, int *val_p) @@ -102,6 +103,7 @@ get_int_prop(LibHalContext *ctxt, const char *udi, return rv; } + static int get_bool_prop(LibHalContext *ctxt, const char *udi, const char *prop, int *val_p) @@ -120,6 +122,7 @@ get_bool_prop(LibHalContext *ctxt, const char *udi, return rv; } + static int get_uint64_prop(LibHalContext *ctxt, const char *udi, const char *prop, unsigned long long *val_p) @@ -138,6 +141,7 @@ get_uint64_prop(LibHalContext *ctxt, const char *udi, return rv; } + static int gather_pci_cap(LibHalContext *ctx, const char *udi, virNodeDevCapDataPtr d) @@ -290,6 +294,7 @@ gather_storage_cap(LibHalContext *ctx, const char *udi, return 0; } + static int gather_scsi_generic_cap(LibHalContext *ctx, const char *udi, virNodeDevCapDataPtr d) @@ -446,12 +451,14 @@ gather_capabilities(LibHalContext *ctx, const char *udi, return rv; } + static void free_udi(void *udi) { VIR_FREE(udi); } + static void dev_create(const char *udi) { @@ -516,6 +523,7 @@ dev_create(const char *udi) nodeDeviceUnlock(); } + static void dev_refresh(const char *udi) { @@ -538,6 +546,7 @@ dev_refresh(const char *udi) dev_create(udi); } + static void device_added(LibHalContext *ctx ATTRIBUTE_UNUSED, const char *udi) diff --git a/src/node_device/node_device_linux_sysfs.c b/src/node_device/node_device_linux_sysfs.c index 1b7aa9435c..ff22d6d55c 100644 --- a/src/node_device/node_device_linux_sysfs.c +++ b/src/node_device/node_device_linux_sysfs.c @@ -230,6 +230,7 @@ nodeDeviceSysfsGetSCSIHostCaps(virNodeDevCapSCSIHostPtr scsi_host ATTRIBUTE_UNUS return -1; } + int nodeDeviceSysfsGetPCIRelatedDevCaps(const char *sysfsPath ATTRIBUTE_UNUSED, virNodeDevCapPCIDevPtr pci_dev ATTRIBUTE_UNUSED) diff --git a/src/node_device/node_device_linux_sysfs.h b/src/node_device/node_device_linux_sysfs.h index 8deea66998..11b96e86b8 100644 --- a/src/node_device/node_device_linux_sysfs.h +++ b/src/node_device/node_device_linux_sysfs.h @@ -25,8 +25,11 @@ # include "node_device_conf.h" -int nodeDeviceSysfsGetSCSIHostCaps(virNodeDevCapSCSIHostPtr scsi_host); -int nodeDeviceSysfsGetPCIRelatedDevCaps(const char *sysfsPath, - virNodeDevCapPCIDevPtr pci_dev); +int +nodeDeviceSysfsGetSCSIHostCaps(virNodeDevCapSCSIHostPtr scsi_host); + +int +nodeDeviceSysfsGetPCIRelatedDevCaps(const char *sysfsPath, + virNodeDevCapPCIDevPtr pci_dev); #endif /* __VIR_NODE_DEVICE_LINUX_SYSFS_H__ */ diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c index bcae444d85..4a837e04dc 100644 --- a/src/node_device/node_device_udev.c +++ b/src/node_device/node_device_udev.c @@ -70,8 +70,9 @@ udevHasDeviceProperty(struct udev_device *dev, } -static const char *udevGetDeviceProperty(struct udev_device *udev_device, - const char *property_key) +static const char * +udevGetDeviceProperty(struct udev_device *udev_device, + const char *property_key) { const char *ret = NULL; @@ -84,9 +85,10 @@ static const char *udevGetDeviceProperty(struct udev_device *udev_device, } -static int udevGetStringProperty(struct udev_device *udev_device, - const char *property_key, - char **value) +static int +udevGetStringProperty(struct udev_device *udev_device, + const char *property_key, + char **value) { if (VIR_STRDUP(*value, udevGetDeviceProperty(udev_device, property_key)) < 0) @@ -96,10 +98,11 @@ static int udevGetStringProperty(struct udev_device *udev_device, } -static int udevGetIntProperty(struct udev_device *udev_device, - const char *property_key, - int *value, - int base) +static int +udevGetIntProperty(struct udev_device *udev_device, + const char *property_key, + int *value, + int base) { const char *str = NULL; @@ -114,10 +117,11 @@ static int udevGetIntProperty(struct udev_device *udev_device, } -static int udevGetUintProperty(struct udev_device *udev_device, - const char *property_key, - unsigned int *value, - int base) +static int +udevGetUintProperty(struct udev_device *udev_device, + const char *property_key, + unsigned int *value, + int base) { const char *str = NULL; @@ -132,8 +136,9 @@ static int udevGetUintProperty(struct udev_device *udev_device, } -static const char *udevGetDeviceSysfsAttr(struct udev_device *udev_device, - const char *attr_name) +static const char * +udevGetDeviceSysfsAttr(struct udev_device *udev_device, + const char *attr_name) { const char *ret = NULL; @@ -147,9 +152,10 @@ static const char *udevGetDeviceSysfsAttr(struct udev_device *udev_device, } -static int udevGetStringSysfsAttr(struct udev_device *udev_device, - const char *attr_name, - char **value) +static int +udevGetStringSysfsAttr(struct udev_device *udev_device, + const char *attr_name, + char **value) { if (VIR_STRDUP(*value, udevGetDeviceSysfsAttr(udev_device, attr_name)) < 0) return -1; @@ -163,10 +169,11 @@ static int udevGetStringSysfsAttr(struct udev_device *udev_device, } -static int udevGetIntSysfsAttr(struct udev_device *udev_device, - const char *attr_name, - int *value, - int base) +static int +udevGetIntSysfsAttr(struct udev_device *udev_device, + const char *attr_name, + int *value, + int base) { const char *str = NULL; @@ -182,10 +189,11 @@ static int udevGetIntSysfsAttr(struct udev_device *udev_device, } -static int udevGetUintSysfsAttr(struct udev_device *udev_device, - const char *attr_name, - unsigned int *value, - int base) +static int +udevGetUintSysfsAttr(struct udev_device *udev_device, + const char *attr_name, + unsigned int *value, + int base) { const char *str = NULL; @@ -201,9 +209,10 @@ static int udevGetUintSysfsAttr(struct udev_device *udev_device, } -static int udevGetUint64SysfsAttr(struct udev_device *udev_device, - const char *attr_name, - unsigned long long *value) +static int +udevGetUint64SysfsAttr(struct udev_device *udev_device, + const char *attr_name, + unsigned long long *value) { const char *str = NULL; @@ -219,9 +228,10 @@ static int udevGetUint64SysfsAttr(struct udev_device *udev_device, } -static int udevGenerateDeviceName(struct udev_device *device, - virNodeDeviceDefPtr def, - const char *s) +static int +udevGenerateDeviceName(struct udev_device *device, + virNodeDeviceDefPtr def, + const char *s) { size_t i; virBuffer buf = VIR_BUFFER_INITIALIZER; @@ -282,10 +292,11 @@ udevLogFunction(struct udev *udev ATTRIBUTE_UNUSED, #endif -static int udevTranslatePCIIds(unsigned int vendor, - unsigned int product, - char **vendor_string, - char **product_string) +static int +udevTranslatePCIIds(unsigned int vendor, + unsigned int product, + char **vendor_string, + char **product_string) { struct pci_id_match m; const char *vendor_name = NULL, *device_name = NULL; @@ -313,8 +324,9 @@ static int udevTranslatePCIIds(unsigned int vendor, } -static int udevProcessPCI(struct udev_device *device, - virNodeDeviceDefPtr def) +static int +udevProcessPCI(struct udev_device *device, + virNodeDeviceDefPtr def) { const char *syspath = NULL; virNodeDevCapPCIDevPtr pci_dev = &def->caps->data.pci_dev; @@ -411,7 +423,9 @@ static int udevProcessPCI(struct udev_device *device, return ret; } -static int drmGetMinorType(int minor) + +static int +drmGetMinorType(int minor) { int type = minor >> 6; @@ -428,8 +442,10 @@ static int drmGetMinorType(int minor) } } -static int udevProcessDRMDevice(struct udev_device *device, - virNodeDeviceDefPtr def) + +static int +udevProcessDRMDevice(struct udev_device *device, + virNodeDeviceDefPtr def) { virNodeDevCapDRMPtr drm = &def->caps->data.drm; int minor; @@ -448,8 +464,10 @@ static int udevProcessDRMDevice(struct udev_device *device, return 0; } -static int udevProcessUSBDevice(struct udev_device *device, - virNodeDeviceDefPtr def) + +static int +udevProcessUSBDevice(struct udev_device *device, + virNodeDeviceDefPtr def) { virNodeDevCapUSBDevPtr usb_dev = &def->caps->data.usb_dev; @@ -490,8 +508,9 @@ static int udevProcessUSBDevice(struct udev_device *device, } -static int udevProcessUSBInterface(struct udev_device *device, - virNodeDeviceDefPtr def) +static int +udevProcessUSBInterface(struct udev_device *device, + virNodeDeviceDefPtr def) { virNodeDevCapUSBIfPtr usb_if = &def->caps->data.usb_if; @@ -518,8 +537,9 @@ static int udevProcessUSBInterface(struct udev_device *device, } -static int udevProcessNetworkInterface(struct udev_device *device, - virNodeDeviceDefPtr def) +static int +udevProcessNetworkInterface(struct udev_device *device, + virNodeDeviceDefPtr def) { const char *devtype = udev_device_get_devtype(device); virNodeDevCapNetPtr net = &def->caps->data.net; @@ -581,8 +601,9 @@ static int udevProcessSCSIHost(struct udev_device *device ATTRIBUTE_UNUSED, } -static int udevProcessSCSITarget(struct udev_device *device ATTRIBUTE_UNUSED, - virNodeDeviceDefPtr def) +static int +udevProcessSCSITarget(struct udev_device *device ATTRIBUTE_UNUSED, + virNodeDeviceDefPtr def) { const char *sysname = NULL; virNodeDevCapSCSITargetPtr scsi_target = &def->caps->data.scsi_target; @@ -599,8 +620,9 @@ static int udevProcessSCSITarget(struct udev_device *device ATTRIBUTE_UNUSED, } -static int udevGetSCSIType(virNodeDeviceDefPtr def ATTRIBUTE_UNUSED, - unsigned int type, char **typestring) +static int +udevGetSCSIType(virNodeDeviceDefPtr def ATTRIBUTE_UNUSED, + unsigned int type, char **typestring) { int ret = 0; int foundtype = 1; @@ -657,8 +679,9 @@ static int udevGetSCSIType(virNodeDeviceDefPtr def ATTRIBUTE_UNUSED, } -static int udevProcessSCSIDevice(struct udev_device *device ATTRIBUTE_UNUSED, - virNodeDeviceDefPtr def) +static int +udevProcessSCSIDevice(struct udev_device *device ATTRIBUTE_UNUSED, + virNodeDeviceDefPtr def) { int ret = -1; unsigned int tmp = 0; @@ -700,8 +723,9 @@ static int udevProcessSCSIDevice(struct udev_device *device ATTRIBUTE_UNUSED, } -static int udevProcessDisk(struct udev_device *device, - virNodeDeviceDefPtr def) +static int +udevProcessDisk(struct udev_device *device, + virNodeDeviceDefPtr def) { virNodeDevCapStoragePtr storage = &def->caps->data.storage; @@ -718,9 +742,10 @@ static int udevProcessDisk(struct udev_device *device, } -static int udevProcessRemoveableMedia(struct udev_device *device, - virNodeDeviceDefPtr def, - int has_media) +static int +udevProcessRemoveableMedia(struct udev_device *device, + virNodeDeviceDefPtr def, + int has_media) { virNodeDevCapStoragePtr storage = &def->caps->data.storage; int is_removable = 0; @@ -759,8 +784,10 @@ static int udevProcessRemoveableMedia(struct udev_device *device, return 0; } -static int udevProcessCDROM(struct udev_device *device, - virNodeDeviceDefPtr def) + +static int +udevProcessCDROM(struct udev_device *device, + virNodeDeviceDefPtr def) { int has_media = 0; @@ -779,8 +806,10 @@ static int udevProcessCDROM(struct udev_device *device, return udevProcessRemoveableMedia(device, def, has_media); } -static int udevProcessFloppy(struct udev_device *device, - virNodeDeviceDefPtr def) + +static int +udevProcessFloppy(struct udev_device *device, + virNodeDeviceDefPtr def) { int has_media = 0; @@ -797,8 +826,9 @@ static int udevProcessFloppy(struct udev_device *device, } -static int udevProcessSD(struct udev_device *device, - virNodeDeviceDefPtr def) +static int +udevProcessSD(struct udev_device *device, + virNodeDeviceDefPtr def) { virNodeDevCapStoragePtr storage = &def->caps->data.storage; @@ -821,7 +851,8 @@ static int udevProcessSD(struct udev_device *device, * not provide a device type in the usual place, but udev told us it's * a storage device, and we can make a good guess at what kind of * storage device it is from other information that is provided. */ -static int udevKludgeStorageType(virNodeDeviceDefPtr def) +static int +udevKludgeStorageType(virNodeDeviceDefPtr def) { VIR_DEBUG("Could not find definitive storage type for device " "with sysfs path '%s', trying to guess it", @@ -842,8 +873,9 @@ static int udevKludgeStorageType(virNodeDeviceDefPtr def) } -static int udevProcessStorage(struct udev_device *device, - virNodeDeviceDefPtr def) +static int +udevProcessStorage(struct udev_device *device, + virNodeDeviceDefPtr def) { virNodeDevCapStoragePtr storage = &def->caps->data.storage; int ret = -1; @@ -938,6 +970,7 @@ static int udevProcessStorage(struct udev_device *device, return ret; } + static int udevProcessSCSIGeneric(struct udev_device *dev, virNodeDeviceDefPtr def) @@ -952,6 +985,7 @@ udevProcessSCSIGeneric(struct udev_device *dev, return 0; } + static int udevGetDeviceNodes(struct udev_device *device, virNodeDeviceDefPtr def) @@ -980,6 +1014,7 @@ udevGetDeviceNodes(struct udev_device *device, return 0; } + static int udevGetDeviceType(struct udev_device *device, virNodeDevCapType *type) @@ -1040,8 +1075,9 @@ udevGetDeviceType(struct udev_device *device, } -static int udevGetDeviceDetails(struct udev_device *device, - virNodeDeviceDefPtr def) +static int +udevGetDeviceDetails(struct udev_device *device, + virNodeDeviceDefPtr def) { int ret = 0; @@ -1090,7 +1126,8 @@ static int udevGetDeviceDetails(struct udev_device *device, } -static int udevRemoveOneDevice(struct udev_device *device) +static int +udevRemoveOneDevice(struct udev_device *device) { virNodeDeviceObjPtr dev = NULL; virObjectEventPtr event = NULL; @@ -1122,8 +1159,9 @@ static int udevRemoveOneDevice(struct udev_device *device) } -static int udevSetParent(struct udev_device *device, - virNodeDeviceDefPtr def) +static int +udevSetParent(struct udev_device *device, + virNodeDeviceDefPtr def) { struct udev_device *parent_device = NULL; const char *parent_sysfs_path = NULL; @@ -1170,7 +1208,8 @@ static int udevSetParent(struct udev_device *device, } -static int udevAddOneDevice(struct udev_device *device) +static int +udevAddOneDevice(struct udev_device *device) { virNodeDeviceDefPtr def = NULL; virNodeDeviceObjPtr dev = NULL; @@ -1239,8 +1278,9 @@ static int udevAddOneDevice(struct udev_device *device) } -static int udevProcessDeviceListEntry(struct udev *udev, - struct udev_list_entry *list_entry) +static int +udevProcessDeviceListEntry(struct udev *udev, + struct udev_list_entry *list_entry) { struct udev_device *device; const char *name = NULL; @@ -1272,7 +1312,8 @@ const char *subsystem_blacklist[] = { "acpi", "tty", "vc", "i2c", }; -static int udevEnumerateAddMatches(struct udev_enumerate *udev_enumerate) +static int +udevEnumerateAddMatches(struct udev_enumerate *udev_enumerate) { size_t i; @@ -1287,7 +1328,8 @@ static int udevEnumerateAddMatches(struct udev_enumerate *udev_enumerate) } -static int udevEnumerateDevices(struct udev *udev) +static int +udevEnumerateDevices(struct udev *udev) { struct udev_enumerate *udev_enumerate = NULL; struct udev_list_entry *list_entry = NULL; @@ -1317,7 +1359,8 @@ static int udevEnumerateDevices(struct udev *udev) } -static void udevPCITranslateDeinit(void) +static void +udevPCITranslateDeinit(void) { #if defined __s390__ || defined __s390x_ /* Nothing was initialized, nothing needs to be cleaned up */ @@ -1329,7 +1372,8 @@ static void udevPCITranslateDeinit(void) } -static int nodeStateCleanup(void) +static int +nodeStateCleanup(void) { udevPrivate *priv = NULL; struct udev_monitor *udev_monitor = NULL; @@ -1370,10 +1414,11 @@ static int nodeStateCleanup(void) } -static void udevEventHandleCallback(int watch ATTRIBUTE_UNUSED, - int fd, - int events ATTRIBUTE_UNUSED, - void *data ATTRIBUTE_UNUSED) +static void +udevEventHandleCallback(int watch ATTRIBUTE_UNUSED, + int fd, + int events ATTRIBUTE_UNUSED, + void *data ATTRIBUTE_UNUSED) { struct udev_device *device = NULL; struct udev_monitor *udev_monitor = DRV_STATE_UDEV_MONITOR(driver); @@ -1474,7 +1519,8 @@ udevGetDMIData(virNodeDevCapSystemPtr syscap) #endif -static int udevSetupSystemDev(void) +static int +udevSetupSystemDev(void) { virNodeDeviceDefPtr def = NULL; virNodeDeviceObjPtr dev = NULL; @@ -1508,7 +1554,9 @@ static int udevSetupSystemDev(void) return ret; } -static int udevPCITranslateInit(bool privileged ATTRIBUTE_UNUSED) + +static int +udevPCITranslateInit(bool privileged ATTRIBUTE_UNUSED) { #if defined __s390__ || defined __s390x_ /* On s390(x) system there is no PCI bus. @@ -1530,9 +1578,11 @@ static int udevPCITranslateInit(bool privileged ATTRIBUTE_UNUSED) return 0; } -static int nodeStateInitialize(bool privileged, - virStateInhibitCallback callback ATTRIBUTE_UNUSED, - void *opaque ATTRIBUTE_UNUSED) + +static int +nodeStateInitialize(bool privileged, + virStateInhibitCallback callback ATTRIBUTE_UNUSED, + void *opaque ATTRIBUTE_UNUSED) { udevPrivate *priv = NULL; struct udev *udev = NULL; @@ -1618,7 +1668,8 @@ static int nodeStateInitialize(bool privileged, } -static int nodeStateReload(void) +static int +nodeStateReload(void) { return 0; } @@ -1648,7 +1699,9 @@ static virStateDriver udevStateDriver = { .stateReload = nodeStateReload, /* 0.7.3 */ }; -int udevNodeRegister(void) + +int +udevNodeRegister(void) { VIR_DEBUG("Registering udev node device backend"); -- 2.12.2

Make the code look cleaner by moving the capability specific bits into separate functions. Signed-off-by: Erik Skultety <eskultet@redhat.com> --- src/conf/node_device_conf.c | 578 ++++++++++++++++++++++++-------------------- 1 file changed, 322 insertions(+), 256 deletions(-) diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index 7d0baa9d1a..72fb9a5611 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -155,6 +155,320 @@ virPCIEDeviceInfoFormat(virBufferPtr buf, } +static void +virNodeDeviceCapSystemDefFormat(virBufferPtr buf, + const virNodeDevCapData *data) +{ + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + if (data->system.product_name) + virBufferEscapeString(buf, "<product>%s</product>\n", + data->system.product_name); + virBufferAddLit(buf, "<hardware>\n"); + virBufferAdjustIndent(buf, 2); + if (data->system.hardware.vendor_name) + virBufferEscapeString(buf, "<vendor>%s</vendor>\n", + data->system.hardware.vendor_name); + if (data->system.hardware.version) + virBufferEscapeString(buf, "<version>%s</version>\n", + data->system.hardware.version); + if (data->system.hardware.serial) + virBufferEscapeString(buf, "<serial>%s</serial>\n", + data->system.hardware.serial); + virUUIDFormat(data->system.hardware.uuid, uuidstr); + virBufferAsprintf(buf, "<uuid>%s</uuid>\n", uuidstr); + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</hardware>\n"); + + virBufferAddLit(buf, "<firmware>\n"); + virBufferAdjustIndent(buf, 2); + if (data->system.firmware.vendor_name) + virBufferEscapeString(buf, "<vendor>%s</vendor>\n", + data->system.firmware.vendor_name); + if (data->system.firmware.version) + virBufferEscapeString(buf, "<version>%s</version>\n", + data->system.firmware.version); + if (data->system.firmware.release_date) + virBufferEscapeString(buf, "<release_date>%s</release_date>\n", + data->system.firmware.release_date); + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</firmware>\n"); +} + + +static void +virNodeDeviceCapPCIDefFormat(virBufferPtr buf, + const virNodeDevCapData *data) +{ + size_t i; + + virBufferAsprintf(buf, "<domain>%d</domain>\n", + data->pci_dev.domain); + virBufferAsprintf(buf, "<bus>%d</bus>\n", data->pci_dev.bus); + virBufferAsprintf(buf, "<slot>%d</slot>\n", + data->pci_dev.slot); + virBufferAsprintf(buf, "<function>%d</function>\n", + data->pci_dev.function); + virBufferAsprintf(buf, "<product id='0x%04x'", + data->pci_dev.product); + if (data->pci_dev.product_name) + virBufferEscapeString(buf, ">%s</product>\n", + data->pci_dev.product_name); + else + virBufferAddLit(buf, " />\n"); + virBufferAsprintf(buf, "<vendor id='0x%04x'", + data->pci_dev.vendor); + if (data->pci_dev.vendor_name) + virBufferEscapeString(buf, ">%s</vendor>\n", + data->pci_dev.vendor_name); + else + virBufferAddLit(buf, " />\n"); + if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCI_PHYSICAL_FUNCTION) { + virBufferAddLit(buf, "<capability type='phys_function'>\n"); + virBufferAdjustIndent(buf, 2); + virBufferAsprintf(buf, + "<address domain='0x%.4x' bus='0x%.2x' " + "slot='0x%.2x' function='0x%.1x'/>\n", + data->pci_dev.physical_function->domain, + data->pci_dev.physical_function->bus, + data->pci_dev.physical_function->slot, + data->pci_dev.physical_function->function); + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</capability>\n"); + } + if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCI_VIRTUAL_FUNCTION) { + virBufferAddLit(buf, "<capability type='virt_functions'"); + if (data->pci_dev.max_virtual_functions) + virBufferAsprintf(buf, " maxCount='%u'", + data->pci_dev.max_virtual_functions); + if (data->pci_dev.num_virtual_functions == 0) { + virBufferAddLit(buf, "/>\n"); + } else { + virBufferAddLit(buf, ">\n"); + virBufferAdjustIndent(buf, 2); + for (i = 0; i < data->pci_dev.num_virtual_functions; i++) { + virBufferAsprintf(buf, + "<address domain='0x%.4x' bus='0x%.2x' " + "slot='0x%.2x' function='0x%.1x'/>\n", + data->pci_dev.virtual_functions[i]->domain, + data->pci_dev.virtual_functions[i]->bus, + data->pci_dev.virtual_functions[i]->slot, + data->pci_dev.virtual_functions[i]->function); + } + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</capability>\n"); + } + } + if (data->pci_dev.hdrType) { + virBufferAsprintf(buf, "<capability type='%s'/>\n", + virPCIHeaderTypeToString(data->pci_dev.hdrType)); + } + if (data->pci_dev.nIommuGroupDevices) { + virBufferAsprintf(buf, "<iommuGroup number='%d'>\n", + data->pci_dev.iommuGroupNumber); + virBufferAdjustIndent(buf, 2); + for (i = 0; i < data->pci_dev.nIommuGroupDevices; i++) { + virBufferAsprintf(buf, + "<address domain='0x%.4x' bus='0x%.2x' " + "slot='0x%.2x' function='0x%.1x'/>\n", + data->pci_dev.iommuGroupDevices[i]->domain, + data->pci_dev.iommuGroupDevices[i]->bus, + data->pci_dev.iommuGroupDevices[i]->slot, + data->pci_dev.iommuGroupDevices[i]->function); + } + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</iommuGroup>\n"); + } + if (data->pci_dev.numa_node >= 0) + virBufferAsprintf(buf, "<numa node='%d'/>\n", + data->pci_dev.numa_node); + + if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCIE) + virPCIEDeviceInfoFormat(buf, data->pci_dev.pci_express); +} + + +static void +virNodeDeviceCapUSBDevDefFormat(virBufferPtr buf, + const virNodeDevCapData *data) +{ + virBufferAsprintf(buf, "<bus>%d</bus>\n", data->usb_dev.bus); + virBufferAsprintf(buf, "<device>%d</device>\n", + data->usb_dev.device); + virBufferAsprintf(buf, "<product id='0x%04x'", + data->usb_dev.product); + if (data->usb_dev.product_name) + virBufferEscapeString(buf, ">%s</product>\n", + data->usb_dev.product_name); + else + virBufferAddLit(buf, " />\n"); + virBufferAsprintf(buf, "<vendor id='0x%04x'", + data->usb_dev.vendor); + if (data->usb_dev.vendor_name) + virBufferEscapeString(buf, ">%s</vendor>\n", + data->usb_dev.vendor_name); + else + virBufferAddLit(buf, " />\n"); +} + + +static void +virNodeDeviceCapUSBInterfaceDefFormat(virBufferPtr buf, + const virNodeDevCapData *data) +{ + virBufferAsprintf(buf, "<number>%d</number>\n", + data->usb_if.number); + virBufferAsprintf(buf, "<class>%d</class>\n", + data->usb_if._class); + virBufferAsprintf(buf, "<subclass>%d</subclass>\n", + data->usb_if.subclass); + virBufferAsprintf(buf, "<protocol>%d</protocol>\n", + data->usb_if.protocol); + if (data->usb_if.description) + virBufferEscapeString(buf, + "<description>%s</description>\n", + data->usb_if.description); +} + + +static void +virNodeDeviceCapNetDefFormat(virBufferPtr buf, + const virNodeDevCapData *data) +{ + size_t i; + + virBufferEscapeString(buf, "<interface>%s</interface>\n", + data->net.ifname); + if (data->net.address) + virBufferEscapeString(buf, "<address>%s</address>\n", + data->net.address); + virInterfaceLinkFormat(buf, &data->net.lnk); + if (data->net.features) { + for (i = 0; i < VIR_NET_DEV_FEAT_LAST; i++) { + if (virBitmapIsBitSet(data->net.features, i)) { + virBufferAsprintf(buf, "<feature name='%s'/>\n", + virNetDevFeatureTypeToString(i)); + } + } + } + if (data->net.subtype != VIR_NODE_DEV_CAP_NET_LAST) { + const char *subtyp = + virNodeDevNetCapTypeToString(data->net.subtype); + virBufferEscapeString(buf, "<capability type='%s'/>\n", + subtyp); + } +} + + +static void +virNodeDeviceCapSCSIHostDefFormat(virBufferPtr buf, + const virNodeDevCapData *data) +{ + virBufferAsprintf(buf, "<host>%d</host>\n", + data->scsi_host.host); + if (data->scsi_host.unique_id != -1) + virBufferAsprintf(buf, "<unique_id>%d</unique_id>\n", + data->scsi_host.unique_id); + if (data->scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST) { + virBufferAddLit(buf, "<capability type='fc_host'>\n"); + virBufferAdjustIndent(buf, 2); + virBufferEscapeString(buf, "<wwnn>%s</wwnn>\n", + data->scsi_host.wwnn); + virBufferEscapeString(buf, "<wwpn>%s</wwpn>\n", + data->scsi_host.wwpn); + virBufferEscapeString(buf, "<fabric_wwn>%s</fabric_wwn>\n", + data->scsi_host.fabric_wwn); + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</capability>\n"); + } + if (data->scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS) { + virBufferAddLit(buf, "<capability type='vport_ops'>\n"); + virBufferAdjustIndent(buf, 2); + virBufferAsprintf(buf, "<max_vports>%d</max_vports>\n", + data->scsi_host.max_vports); + virBufferAsprintf(buf, "<vports>%d</vports>\n", + data->scsi_host.vports); + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</capability>\n"); + } +} + + +static void +virNodeDeviceCapSCSIDefFormat(virBufferPtr buf, + const virNodeDevCapData *data) +{ + virBufferAsprintf(buf, "<host>%d</host>\n", data->scsi.host); + virBufferAsprintf(buf, "<bus>%d</bus>\n", data->scsi.bus); + virBufferAsprintf(buf, "<target>%d</target>\n", + data->scsi.target); + virBufferAsprintf(buf, "<lun>%d</lun>\n", data->scsi.lun); + if (data->scsi.type) + virBufferEscapeString(buf, "<type>%s</type>\n", + data->scsi.type); +} + + +static void +virNodeDeviceCapStorageDefFormat(virBufferPtr buf, + const virNodeDevCapData *data) +{ + virBufferEscapeString(buf, "<block>%s</block>\n", + data->storage.block); + if (data->storage.bus) + virBufferEscapeString(buf, "<bus>%s</bus>\n", + data->storage.bus); + if (data->storage.drive_type) + virBufferEscapeString(buf, "<drive_type>%s</drive_type>\n", + data->storage.drive_type); + if (data->storage.model) + virBufferEscapeString(buf, "<model>%s</model>\n", + data->storage.model); + if (data->storage.vendor) + virBufferEscapeString(buf, "<vendor>%s</vendor>\n", + data->storage.vendor); + if (data->storage.serial) + virBufferEscapeString(buf, "<serial>%s</serial>\n", + data->storage.serial); + if (data->storage.flags & VIR_NODE_DEV_CAP_STORAGE_REMOVABLE) { + int avl = data->storage.flags & + VIR_NODE_DEV_CAP_STORAGE_REMOVABLE_MEDIA_AVAILABLE; + virBufferAddLit(buf, "<capability type='removable'>\n"); + virBufferAdjustIndent(buf, 2); + virBufferAsprintf(buf, "<media_available>%d" + "</media_available>\n", avl ? 1 : 0); + virBufferAsprintf(buf, "<media_size>%llu</media_size>\n", + data->storage.removable_media_size); + if (data->storage.media_label) + virBufferEscapeString(buf, + "<media_label>%s</media_label>\n", + data->storage.media_label); + if (data->storage.logical_block_size > 0) + virBufferAsprintf(buf, "<logical_block_size>%llu" + "</logical_block_size>\n", + data->storage.logical_block_size); + if (data->storage.num_blocks > 0) + virBufferAsprintf(buf, + "<num_blocks>%llu</num_blocks>\n", + data->storage.num_blocks); + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</capability>\n"); + } else { + virBufferAsprintf(buf, "<size>%llu</size>\n", + data->storage.size); + if (data->storage.logical_block_size > 0) + virBufferAsprintf(buf, "<logical_block_size>%llu" + "</logical_block_size>\n", + data->storage.logical_block_size); + if (data->storage.num_blocks > 0) + virBufferAsprintf(buf, "<num_blocks>%llu</num_blocks>\n", + data->storage.num_blocks); + } + if (data->storage.flags & VIR_NODE_DEV_CAP_STORAGE_HOTPLUGGABLE) + virBufferAddLit(buf, "<capability type='hotpluggable'/>\n"); +} + + char * virNodeDeviceDefFormat(const virNodeDeviceDef *def) { @@ -185,7 +499,6 @@ virNodeDeviceDefFormat(const virNodeDeviceDef *def) } for (caps = def->caps; caps; caps = caps->next) { - char uuidstr[VIR_UUID_STRING_BUFLEN]; virNodeDevCapDataPtr data = &caps->data; virBufferAsprintf(&buf, "<capability type='%s'>\n", @@ -193,279 +506,32 @@ virNodeDeviceDefFormat(const virNodeDeviceDef *def) virBufferAdjustIndent(&buf, 2); switch (caps->data.type) { case VIR_NODE_DEV_CAP_SYSTEM: - if (data->system.product_name) - virBufferEscapeString(&buf, "<product>%s</product>\n", - data->system.product_name); - virBufferAddLit(&buf, "<hardware>\n"); - virBufferAdjustIndent(&buf, 2); - if (data->system.hardware.vendor_name) - virBufferEscapeString(&buf, "<vendor>%s</vendor>\n", - data->system.hardware.vendor_name); - if (data->system.hardware.version) - virBufferEscapeString(&buf, "<version>%s</version>\n", - data->system.hardware.version); - if (data->system.hardware.serial) - virBufferEscapeString(&buf, "<serial>%s</serial>\n", - data->system.hardware.serial); - virUUIDFormat(data->system.hardware.uuid, uuidstr); - virBufferAsprintf(&buf, "<uuid>%s</uuid>\n", uuidstr); - virBufferAdjustIndent(&buf, -2); - virBufferAddLit(&buf, "</hardware>\n"); - - virBufferAddLit(&buf, "<firmware>\n"); - virBufferAdjustIndent(&buf, 2); - if (data->system.firmware.vendor_name) - virBufferEscapeString(&buf, "<vendor>%s</vendor>\n", - data->system.firmware.vendor_name); - if (data->system.firmware.version) - virBufferEscapeString(&buf, "<version>%s</version>\n", - data->system.firmware.version); - if (data->system.firmware.release_date) - virBufferEscapeString(&buf, "<release_date>%s</release_date>\n", - data->system.firmware.release_date); - virBufferAdjustIndent(&buf, -2); - virBufferAddLit(&buf, "</firmware>\n"); + virNodeDeviceCapSystemDefFormat(&buf, data); break; case VIR_NODE_DEV_CAP_PCI_DEV: - virBufferAsprintf(&buf, "<domain>%d</domain>\n", - data->pci_dev.domain); - virBufferAsprintf(&buf, "<bus>%d</bus>\n", data->pci_dev.bus); - virBufferAsprintf(&buf, "<slot>%d</slot>\n", - data->pci_dev.slot); - virBufferAsprintf(&buf, "<function>%d</function>\n", - data->pci_dev.function); - virBufferAsprintf(&buf, "<product id='0x%04x'", - data->pci_dev.product); - if (data->pci_dev.product_name) - virBufferEscapeString(&buf, ">%s</product>\n", - data->pci_dev.product_name); - else - virBufferAddLit(&buf, " />\n"); - virBufferAsprintf(&buf, "<vendor id='0x%04x'", - data->pci_dev.vendor); - if (data->pci_dev.vendor_name) - virBufferEscapeString(&buf, ">%s</vendor>\n", - data->pci_dev.vendor_name); - else - virBufferAddLit(&buf, " />\n"); - if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCI_PHYSICAL_FUNCTION) { - virBufferAddLit(&buf, "<capability type='phys_function'>\n"); - virBufferAdjustIndent(&buf, 2); - virBufferAsprintf(&buf, - "<address domain='0x%.4x' bus='0x%.2x' " - "slot='0x%.2x' function='0x%.1x'/>\n", - data->pci_dev.physical_function->domain, - data->pci_dev.physical_function->bus, - data->pci_dev.physical_function->slot, - data->pci_dev.physical_function->function); - virBufferAdjustIndent(&buf, -2); - virBufferAddLit(&buf, "</capability>\n"); - } - if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCI_VIRTUAL_FUNCTION) { - virBufferAddLit(&buf, "<capability type='virt_functions'"); - if (data->pci_dev.max_virtual_functions) - virBufferAsprintf(&buf, " maxCount='%u'", - data->pci_dev.max_virtual_functions); - if (data->pci_dev.num_virtual_functions == 0) { - virBufferAddLit(&buf, "/>\n"); - } else { - virBufferAddLit(&buf, ">\n"); - virBufferAdjustIndent(&buf, 2); - for (i = 0; i < data->pci_dev.num_virtual_functions; i++) { - virBufferAsprintf(&buf, - "<address domain='0x%.4x' bus='0x%.2x' " - "slot='0x%.2x' function='0x%.1x'/>\n", - data->pci_dev.virtual_functions[i]->domain, - data->pci_dev.virtual_functions[i]->bus, - data->pci_dev.virtual_functions[i]->slot, - data->pci_dev.virtual_functions[i]->function); - } - virBufferAdjustIndent(&buf, -2); - virBufferAddLit(&buf, "</capability>\n"); - } - } - if (data->pci_dev.hdrType) { - virBufferAsprintf(&buf, "<capability type='%s'/>\n", - virPCIHeaderTypeToString(data->pci_dev.hdrType)); - } - if (data->pci_dev.nIommuGroupDevices) { - virBufferAsprintf(&buf, "<iommuGroup number='%d'>\n", - data->pci_dev.iommuGroupNumber); - virBufferAdjustIndent(&buf, 2); - for (i = 0; i < data->pci_dev.nIommuGroupDevices; i++) { - virBufferAsprintf(&buf, - "<address domain='0x%.4x' bus='0x%.2x' " - "slot='0x%.2x' function='0x%.1x'/>\n", - data->pci_dev.iommuGroupDevices[i]->domain, - data->pci_dev.iommuGroupDevices[i]->bus, - data->pci_dev.iommuGroupDevices[i]->slot, - data->pci_dev.iommuGroupDevices[i]->function); - } - virBufferAdjustIndent(&buf, -2); - virBufferAddLit(&buf, "</iommuGroup>\n"); - } - if (data->pci_dev.numa_node >= 0) - virBufferAsprintf(&buf, "<numa node='%d'/>\n", - data->pci_dev.numa_node); - - if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCIE) - virPCIEDeviceInfoFormat(&buf, data->pci_dev.pci_express); + virNodeDeviceCapPCIDefFormat(&buf, data); break; case VIR_NODE_DEV_CAP_USB_DEV: - virBufferAsprintf(&buf, "<bus>%d</bus>\n", data->usb_dev.bus); - virBufferAsprintf(&buf, "<device>%d</device>\n", - data->usb_dev.device); - virBufferAsprintf(&buf, "<product id='0x%04x'", - data->usb_dev.product); - if (data->usb_dev.product_name) - virBufferEscapeString(&buf, ">%s</product>\n", - data->usb_dev.product_name); - else - virBufferAddLit(&buf, " />\n"); - virBufferAsprintf(&buf, "<vendor id='0x%04x'", - data->usb_dev.vendor); - if (data->usb_dev.vendor_name) - virBufferEscapeString(&buf, ">%s</vendor>\n", - data->usb_dev.vendor_name); - else - virBufferAddLit(&buf, " />\n"); + virNodeDeviceCapUSBDevDefFormat(&buf, data); break; case VIR_NODE_DEV_CAP_USB_INTERFACE: - virBufferAsprintf(&buf, "<number>%d</number>\n", - data->usb_if.number); - virBufferAsprintf(&buf, "<class>%d</class>\n", - data->usb_if._class); - virBufferAsprintf(&buf, "<subclass>%d</subclass>\n", - data->usb_if.subclass); - virBufferAsprintf(&buf, "<protocol>%d</protocol>\n", - data->usb_if.protocol); - if (data->usb_if.description) - virBufferEscapeString(&buf, - "<description>%s</description>\n", - data->usb_if.description); + virNodeDeviceCapUSBInterfaceDefFormat(&buf, data); break; case VIR_NODE_DEV_CAP_NET: - virBufferEscapeString(&buf, "<interface>%s</interface>\n", - data->net.ifname); - if (data->net.address) - virBufferEscapeString(&buf, "<address>%s</address>\n", - data->net.address); - virInterfaceLinkFormat(&buf, &data->net.lnk); - if (data->net.features) { - for (i = 0; i < VIR_NET_DEV_FEAT_LAST; i++) { - if (virBitmapIsBitSet(data->net.features, i)) { - virBufferAsprintf(&buf, "<feature name='%s'/>\n", - virNetDevFeatureTypeToString(i)); - } - } - } - if (data->net.subtype != VIR_NODE_DEV_CAP_NET_LAST) { - const char *subtyp = - virNodeDevNetCapTypeToString(data->net.subtype); - virBufferEscapeString(&buf, "<capability type='%s'/>\n", - subtyp); - } + virNodeDeviceCapNetDefFormat(&buf, data); break; case VIR_NODE_DEV_CAP_SCSI_HOST: - virBufferAsprintf(&buf, "<host>%d</host>\n", - data->scsi_host.host); - if (data->scsi_host.unique_id != -1) - virBufferAsprintf(&buf, "<unique_id>%d</unique_id>\n", - data->scsi_host.unique_id); - if (data->scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST) { - virBufferAddLit(&buf, "<capability type='fc_host'>\n"); - virBufferAdjustIndent(&buf, 2); - virBufferEscapeString(&buf, "<wwnn>%s</wwnn>\n", - data->scsi_host.wwnn); - virBufferEscapeString(&buf, "<wwpn>%s</wwpn>\n", - data->scsi_host.wwpn); - virBufferEscapeString(&buf, "<fabric_wwn>%s</fabric_wwn>\n", - data->scsi_host.fabric_wwn); - virBufferAdjustIndent(&buf, -2); - virBufferAddLit(&buf, "</capability>\n"); - } - if (data->scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS) { - virBufferAddLit(&buf, "<capability type='vport_ops'>\n"); - virBufferAdjustIndent(&buf, 2); - virBufferAsprintf(&buf, "<max_vports>%d</max_vports>\n", - data->scsi_host.max_vports); - virBufferAsprintf(&buf, "<vports>%d</vports>\n", - data->scsi_host.vports); - virBufferAdjustIndent(&buf, -2); - virBufferAddLit(&buf, "</capability>\n"); - } - + virNodeDeviceCapSCSIHostDefFormat(&buf, data); break; - case VIR_NODE_DEV_CAP_SCSI_TARGET: virBufferEscapeString(&buf, "<target>%s</target>\n", data->scsi_target.name); break; - case VIR_NODE_DEV_CAP_SCSI: - virBufferAsprintf(&buf, "<host>%d</host>\n", data->scsi.host); - virBufferAsprintf(&buf, "<bus>%d</bus>\n", data->scsi.bus); - virBufferAsprintf(&buf, "<target>%d</target>\n", - data->scsi.target); - virBufferAsprintf(&buf, "<lun>%d</lun>\n", data->scsi.lun); - if (data->scsi.type) - virBufferEscapeString(&buf, "<type>%s</type>\n", - data->scsi.type); + virNodeDeviceCapSCSIDefFormat(&buf, data); break; case VIR_NODE_DEV_CAP_STORAGE: - virBufferEscapeString(&buf, "<block>%s</block>\n", - data->storage.block); - if (data->storage.bus) - virBufferEscapeString(&buf, "<bus>%s</bus>\n", - data->storage.bus); - if (data->storage.drive_type) - virBufferEscapeString(&buf, "<drive_type>%s</drive_type>\n", - data->storage.drive_type); - if (data->storage.model) - virBufferEscapeString(&buf, "<model>%s</model>\n", - data->storage.model); - if (data->storage.vendor) - virBufferEscapeString(&buf, "<vendor>%s</vendor>\n", - data->storage.vendor); - if (data->storage.serial) - virBufferEscapeString(&buf, "<serial>%s</serial>\n", - data->storage.serial); - if (data->storage.flags & VIR_NODE_DEV_CAP_STORAGE_REMOVABLE) { - int avl = data->storage.flags & - VIR_NODE_DEV_CAP_STORAGE_REMOVABLE_MEDIA_AVAILABLE; - virBufferAddLit(&buf, "<capability type='removable'>\n"); - virBufferAdjustIndent(&buf, 2); - virBufferAsprintf(&buf, "<media_available>%d" - "</media_available>\n", avl ? 1 : 0); - virBufferAsprintf(&buf, "<media_size>%llu</media_size>\n", - data->storage.removable_media_size); - if (data->storage.media_label) - virBufferEscapeString(&buf, - "<media_label>%s</media_label>\n", - data->storage.media_label); - if (data->storage.logical_block_size > 0) - virBufferAsprintf(&buf, "<logical_block_size>%llu" - "</logical_block_size>\n", - data->storage.logical_block_size); - if (data->storage.num_blocks > 0) - virBufferAsprintf(&buf, - "<num_blocks>%llu</num_blocks>\n", - data->storage.num_blocks); - virBufferAdjustIndent(&buf, -2); - virBufferAddLit(&buf, "</capability>\n"); - } else { - virBufferAsprintf(&buf, "<size>%llu</size>\n", - data->storage.size); - if (data->storage.logical_block_size > 0) - virBufferAsprintf(&buf, "<logical_block_size>%llu" - "</logical_block_size>\n", - data->storage.logical_block_size); - if (data->storage.num_blocks > 0) - virBufferAsprintf(&buf, "<num_blocks>%llu</num_blocks>\n", - data->storage.num_blocks); - } - if (data->storage.flags & VIR_NODE_DEV_CAP_STORAGE_HOTPLUGGABLE) - virBufferAddLit(&buf, "<capability type='hotpluggable'/>\n"); + virNodeDeviceCapStorageDefFormat(&buf, data); break; case VIR_NODE_DEV_CAP_SCSI_GENERIC: virBufferEscapeString(&buf, "<char>%s</char>\n", -- 2.12.2

Since we do have this template at hand, why not using it wherever possible. Also, just to be grammatically correct, let's use singular, aka 'pool' instead of plural in the enumerated list of supported types. Signed-off-by: Erik Skultety <eskultet@redhat.com> --- docs/storage.html.in | 62 ++++++++++------------------------------------------ 1 file changed, 11 insertions(+), 51 deletions(-) diff --git a/docs/storage.html.in b/docs/storage.html.in index 5e18f02c58..2487ede67b 100644 --- a/docs/storage.html.in +++ b/docs/storage.html.in @@ -83,47 +83,7 @@ <p> Libvirt supports the following storage pool types: </p> - <ul> - <li> - <a href="#StorageBackendDir">Directory backend</a> - </li> - <li> - <a href="#StorageBackendFS">Local filesystem backend</a> - </li> - <li> - <a href="#StorageBackendNetFS">Network filesystem backend</a> - </li> - <li> - <a href="#StorageBackendLogical">Logical backend</a> - </li> - <li> - <a href="#StorageBackendDisk">Disk backend</a> - </li> - <li> - <a href="#StorageBackendISCSI">iSCSI backend</a> - </li> - <li> - <a href="#StorageBackendSCSI">SCSI backend</a> - </li> - <li> - <a href="#StorageBackendMultipath">Multipath backend</a> - </li> - <li> - <a href="#StorageBackendRBD">RBD (RADOS Block Device) backend</a> - </li> - <li> - <a href="#StorageBackendSheepdog">Sheepdog backend</a> - </li> - <li> - <a href="#StorageBackendGluster">Gluster backend</a> - </li> - <li> - <a href="#StorageBackendZFS">ZFS backend</a> - </li> - <li> - <a href="#StorageBackendVstorage">Virtuozzo storage backend</a> - </li> - </ul> + <ul id="toc"></ul> <h2><a name="StorageBackendDir">Directory pool</a></h2> <p> @@ -306,7 +266,7 @@ </p> - <h2><a name="StorageBackendLogical">Logical volume pools</a></h2> + <h2><a name="StorageBackendLogical">Logical volume pool</a></h2> <p> This provides a pool based on an LVM volume group. For a pre-defined LVM volume group, simply providing the group @@ -343,7 +303,7 @@ </p> - <h2><a name="StorageBackendDisk">Disk volume pools</a></h2> + <h2><a name="StorageBackendDisk">Disk volume pool</a></h2> <p> This provides a pool based on a physical disk. Volumes are created by adding partitions to the disk. Disk pools have constraints @@ -434,7 +394,7 @@ </ul> - <h2><a name="StorageBackendISCSI">iSCSI volume pools</a></h2> + <h2><a name="StorageBackendISCSI">iSCSI volume pool</a></h2> <p> This provides a pool based on an iSCSI target. Volumes must be pre-allocated on the iSCSI server, and cannot be created via @@ -473,7 +433,7 @@ The iSCSI volume pool does not use the volume format type element. </p> - <h2><a name="StorageBackendSCSI">SCSI volume pools</a></h2> + <h2><a name="StorageBackendSCSI">SCSI volume pool</a></h2> <p> This provides a pool based on a SCSI HBA. Volumes are preexisting SCSI LUNs, and cannot be created via the libvirt APIs. Since /dev/XXX names @@ -505,7 +465,7 @@ The SCSI volume pool does not use the volume format type element. </p> - <h2><a name="StorageBackendMultipath">Multipath pools</a></h2> + <h2><a name="StorageBackendMultipath">Multipath pool</a></h2> <p> This provides a pool that contains all the multipath devices on the host. Therefore, only one Multipath pool may be configured per host. @@ -538,7 +498,7 @@ The Multipath volume pool does not use the volume format type element. </p> - <h2><a name="StorageBackendRBD">RBD pools</a></h2> + <h2><a name="StorageBackendRBD">RBD pool</a></h2> <p> This storage driver provides a pool which contains all RBD images in a RADOS pool. RBD (RADOS Block Device) is part @@ -611,7 +571,7 @@ The RBD pool does not use the volume format type element. </p> - <h2><a name="StorageBackendSheepdog">Sheepdog pools</a></h2> + <h2><a name="StorageBackendSheepdog">Sheepdog pool</a></h2> <p> This provides a pool based on a Sheepdog Cluster. Sheepdog is a distributed storage system for QEMU/KVM. @@ -670,7 +630,7 @@ The Sheepdog pool does not use the volume format type element. </p> - <h2><a name="StorageBackendGluster">Gluster pools</a></h2> + <h2><a name="StorageBackendGluster">Gluster pool</a></h2> <p> This provides a pool based on native Gluster access. Gluster is a distributed file system that can be exposed to the user via @@ -756,7 +716,7 @@ pool type. </p> - <h2><a name="StorageBackendZFS">ZFS pools</a></h2> + <h2><a name="StorageBackendZFS">ZFS pool</a></h2> <p> This provides a pool based on the ZFS filesystem. Initially it was developed for FreeBSD, and <span class="since">since 1.3.2</span> experimental support @@ -794,7 +754,7 @@ <p> The ZFS volume pool does not use the volume format type element. </p> - <h2><a name="StorageBackendVstorage">Vstorage pools</a></h2> + <h2><a name="StorageBackendVstorage">Vstorage pool</a></h2> <p> This provides a pool based on Virtuozzo storage. Virtuozzo Storage is a highly available distributed software-defined storage with built-in -- 2.12.2

Besides updating the capability enum, this patch introduces 'virNodeDevCapMdev' structure which will store everything libvirt can gather from sysfs about a mediated device. Since we need to report the info for both the mediated child device it's parent mdev capabilities (merely the mdev types' attributes), this structure serves in both of these cases with the difference being that the amount of data it holds depends on the specific scenario (child vs parent). Signed-off-by: Erik Skultety <eskultet@redhat.com> --- include/libvirt/libvirt-nodedev.h | 1 + src/conf/node_device_conf.c | 19 ++++++++++++++++++- src/conf/node_device_conf.h | 19 ++++++++++++++++++- src/conf/virnodedeviceobj.c | 3 ++- src/libvirt-nodedev.c | 1 + src/libvirt_private.syms | 1 + src/node_device/node_device_driver.c | 1 + src/node_device/node_device_udev.c | 8 +++++++- tools/virsh-nodedev.c | 2 ++ 9 files changed, 51 insertions(+), 4 deletions(-) diff --git a/include/libvirt/libvirt-nodedev.h b/include/libvirt/libvirt-nodedev.h index 85003903d7..59edf4db02 100644 --- a/include/libvirt/libvirt-nodedev.h +++ b/include/libvirt/libvirt-nodedev.h @@ -79,6 +79,7 @@ typedef enum { VIR_CONNECT_LIST_NODE_DEVICES_CAP_VPORTS = 1 << 10, /* Capable of vport */ VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI_GENERIC = 1 << 11, /* Capable of scsi_generic */ VIR_CONNECT_LIST_NODE_DEVICES_CAP_DRM = 1 << 12, /* DRM device */ + VIR_CONNECT_LIST_NODE_DEVICES_CAP_MDEV = 1 << 13, /* Mediated device */ } virConnectListAllNodeDeviceFlags; int virConnectListAllNodeDevices (virConnectPtr conn, diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index 72fb9a5611..03d7993ab1 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -60,7 +60,8 @@ VIR_ENUM_IMPL(virNodeDevCap, VIR_NODE_DEV_CAP_LAST, "fc_host", "vports", "scsi_generic", - "drm") + "drm", + "mdev") VIR_ENUM_IMPL(virNodeDevNetCap, VIR_NODE_DEV_CAP_NET_LAST, "80203", @@ -542,6 +543,7 @@ virNodeDeviceDefFormat(const virNodeDeviceDef *def) break; case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: + case VIR_NODE_DEV_CAP_MDEV: case VIR_NODE_DEV_CAP_LAST: break; } @@ -1591,6 +1593,7 @@ virNodeDevCapsDefParseXML(xmlXPathContextPtr ctxt, case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: case VIR_NODE_DEV_CAP_SCSI_GENERIC: + case VIR_NODE_DEV_CAP_MDEV: case VIR_NODE_DEV_CAP_LAST: virReportError(VIR_ERR_INTERNAL_ERROR, _("unknown capability type '%d' for '%s'"), @@ -1905,6 +1908,7 @@ virNodeDevCapsDefFree(virNodeDevCapsDefPtr caps) case VIR_NODE_DEV_CAP_SCSI_GENERIC: VIR_FREE(data->sg.path); break; + case VIR_NODE_DEV_CAP_MDEV: case VIR_NODE_DEV_CAP_DRM: case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: @@ -1917,6 +1921,19 @@ virNodeDevCapsDefFree(virNodeDevCapsDefPtr caps) } +void virNodeDevCapMdevFree(virNodeDevCapMdevPtr mdev) +{ + if (!mdev) + return; + + VIR_FREE(mdev->type); + VIR_FREE(mdev->name); + VIR_FREE(mdev->description); + VIR_FREE(mdev->device_api); + VIR_FREE(mdev); +} + + /* virNodeDeviceGetParentName * @conn: Connection pointer * @nodedev_name: Node device to lookup diff --git a/src/conf/node_device_conf.h b/src/conf/node_device_conf.h index a5d5cdd2a5..b7db35dd50 100644 --- a/src/conf/node_device_conf.h +++ b/src/conf/node_device_conf.h @@ -64,6 +64,7 @@ typedef enum { VIR_NODE_DEV_CAP_VPORTS, /* HBA which is capable of vports */ VIR_NODE_DEV_CAP_SCSI_GENERIC, /* SCSI generic device */ VIR_NODE_DEV_CAP_DRM, /* DRM device */ + VIR_NODE_DEV_CAP_MDEV, /* Mediated device */ VIR_NODE_DEV_CAP_LAST } virNodeDevCapType; @@ -131,6 +132,17 @@ struct _virNodeDevCapSystem { virNodeDevCapSystemFirmware firmware; }; +typedef struct _virNodeDevCapMdev virNodeDevCapMdev; +typedef virNodeDevCapMdev *virNodeDevCapMdevPtr; +struct _virNodeDevCapMdev { + char *type; + char *name; + char *description; + char *device_api; + unsigned int available_instances; + unsigned int iommuGroupNumber; +}; + typedef struct _virNodeDevCapPCIDev virNodeDevCapPCIDev; typedef virNodeDevCapPCIDev *virNodeDevCapPCIDevPtr; struct _virNodeDevCapPCIDev { @@ -262,6 +274,7 @@ struct _virNodeDevCapData { virNodeDevCapStorage storage; virNodeDevCapSCSIGeneric sg; virNodeDevCapDRM drm; + virNodeDevCapMdev mdev; }; }; @@ -338,6 +351,9 @@ virNodeDeviceDefFree(virNodeDeviceDefPtr def); void virNodeDevCapsDefFree(virNodeDevCapsDefPtr caps); +void +virNodeDevCapMdevFree(virNodeDevCapMdevPtr mdev); + # define VIR_CONNECT_LIST_NODE_DEVICES_FILTERS_CAP \ (VIR_CONNECT_LIST_NODE_DEVICES_CAP_SYSTEM | \ VIR_CONNECT_LIST_NODE_DEVICES_CAP_PCI_DEV | \ @@ -351,7 +367,8 @@ virNodeDevCapsDefFree(virNodeDevCapsDefPtr caps); VIR_CONNECT_LIST_NODE_DEVICES_CAP_FC_HOST | \ VIR_CONNECT_LIST_NODE_DEVICES_CAP_VPORTS | \ VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI_GENERIC | \ - VIR_CONNECT_LIST_NODE_DEVICES_CAP_DRM) + VIR_CONNECT_LIST_NODE_DEVICES_CAP_DRM | \ + VIR_CONNECT_LIST_NODE_DEVICES_CAP_MDEV) char * virNodeDeviceGetParentName(virConnectPtr conn, diff --git a/src/conf/virnodedeviceobj.c b/src/conf/virnodedeviceobj.c index 3fe3ae5fe8..1dfb7380c7 100644 --- a/src/conf/virnodedeviceobj.c +++ b/src/conf/virnodedeviceobj.c @@ -494,7 +494,8 @@ virNodeDeviceMatch(virNodeDeviceObjPtr devobj, MATCH(FC_HOST) || MATCH(VPORTS) || MATCH(SCSI_GENERIC) || - MATCH(DRM))) + MATCH(DRM) || + MATCH(MDEV))) return false; } diff --git a/src/libvirt-nodedev.c b/src/libvirt-nodedev.c index 83376b0d96..f9d8edf7e5 100644 --- a/src/libvirt-nodedev.c +++ b/src/libvirt-nodedev.c @@ -98,6 +98,7 @@ virNodeNumOfDevices(virConnectPtr conn, const char *cap, unsigned int flags) * VIR_CONNECT_LIST_NODE_DEVICES_CAP_VPORTS * VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI_GENERIC * VIR_CONNECT_LIST_NODE_DEVICES_CAP_DRM + * VIR_CONNECT_LIST_NODE_DEVICES_CAP_MDEV * * Returns the number of node devices found or -1 and sets @devices to NULL in * case of error. On success, the array stored into @devices is guaranteed to diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index b551cb86a6..2a3e8cb705 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -690,6 +690,7 @@ virNetDevIPRouteParseXML; # conf/node_device_conf.h +virNodeDevCapMdevFree; virNodeDevCapsDefFree; virNodeDevCapTypeFromString; virNodeDevCapTypeToString; diff --git a/src/node_device/node_device_driver.c b/src/node_device/node_device_driver.c index 9b1c5bb5e9..bcf204c7b7 100644 --- a/src/node_device/node_device_driver.c +++ b/src/node_device/node_device_driver.c @@ -83,6 +83,7 @@ update_caps(virNodeDeviceObjPtr dev) case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: case VIR_NODE_DEV_CAP_SCSI_GENERIC: + case VIR_NODE_DEV_CAP_MDEV: case VIR_NODE_DEV_CAP_LAST: break; } diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c index 36ed92f712..dbbd8e5d06 100644 --- a/src/node_device/node_device_udev.c +++ b/src/node_device/node_device_udev.c @@ -43,6 +43,7 @@ #include "virpci.h" #include "virstring.h" #include "virnetdev.h" +#include "virmdev.h" #define VIR_FROM_THIS VIR_FROM_NODEDEV @@ -1051,12 +1052,16 @@ udevGetDeviceType(struct udev_device *device, if (udevHasDeviceProperty(device, "INTERFACE")) *type = VIR_NODE_DEV_CAP_NET; - /* SCSI generic device doesn't set DEVTYPE property */ + /* Neither SCSI generic devices nor mediated devices set DEVTYPE + * property, but they so we need to rely on the SUBSYSTEM property */ if (udevGetStringProperty(device, "SUBSYSTEM", &subsystem) < 0) return -1; if (STREQ_NULLABLE(subsystem, "scsi_generic")) *type = VIR_NODE_DEV_CAP_SCSI_GENERIC; + else if (STREQ_NULLABLE(subsystem, "mdev")) + *type = VIR_NODE_DEV_CAP_MDEV; + VIR_FREE(subsystem); } @@ -1096,6 +1101,7 @@ udevGetDeviceDetails(struct udev_device *device, return udevProcessSCSIGeneric(device, def); case VIR_NODE_DEV_CAP_DRM: return udevProcessDRMDevice(device, def); + case VIR_NODE_DEV_CAP_MDEV: case VIR_NODE_DEV_CAP_SYSTEM: case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: diff --git a/tools/virsh-nodedev.c b/tools/virsh-nodedev.c index c691440219..19dcfafa6e 100644 --- a/tools/virsh-nodedev.c +++ b/tools/virsh-nodedev.c @@ -454,6 +454,8 @@ cmdNodeListDevices(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED) case VIR_NODE_DEV_CAP_DRM: flags |= VIR_CONNECT_LIST_NODE_DEVICES_CAP_DRM; break; + case VIR_NODE_DEV_CAP_MDEV: + flags |= VIR_CONNECT_LIST_NODE_DEVICES_CAP_MDEV; case VIR_NODE_DEV_CAP_LAST: break; } -- 2.12.2

The parent device needs to report the generic stuff about the supported mediated devices types, like device API, available instances, and description which might hold some useful data about supported resolutions for the type given, framebuffer size, etc. Unfortunately, these are not standardized yet to be considered for separate elements. Signed-off-by: Erik Skultety <eskultet@redhat.com> --- src/conf/node_device_conf.h | 2 + src/node_device/node_device_udev.c | 115 +++++++++++++++++++++++++++++++++++++ 2 files changed, 117 insertions(+) diff --git a/src/conf/node_device_conf.h b/src/conf/node_device_conf.h index b7db35dd50..d521dd9a4c 100644 --- a/src/conf/node_device_conf.h +++ b/src/conf/node_device_conf.h @@ -166,6 +166,8 @@ struct _virNodeDevCapPCIDev { int numa_node; virPCIEDeviceInfoPtr pci_express; int hdrType; /* enum virPCIHeaderType or -1 */ + virNodeDevCapMdevPtr *mdevs; + size_t nmdevs; }; typedef struct _virNodeDevCapUSBDev virNodeDevCapUSBDev; diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c index dbbd8e5d06..be031fa5a8 100644 --- a/src/node_device/node_device_udev.c +++ b/src/node_device/node_device_udev.c @@ -324,6 +324,115 @@ udevTranslatePCIIds(unsigned int vendor, return 0; } +#define MDEV_GET_SYSFS_ATTR(attr, cb, ...) \ + do { \ + if (virAsprintf(&attrpath, "%s/%s", relpath, #attr) < 0) \ + goto cleanup; \ + \ + if (cb(device, attrpath, __VA_ARGS__) < 0) \ + goto cleanup; \ + } while (0) \ + + +static int +udevGetMdevCaps(struct udev_device *device, + const char *sysfspath, + virNodeDevCapMdevPtr mdev) +{ + int ret = -1; + char *attrpath = NULL; /* relative path to the actual sysfs attribute */ + const char *devpath = NULL; /* base sysfs path as reported by udev */ + const char *relpath = NULL; /* diff between @sysfspath and @devpath */ + char *tmp = NULL; + + + /* UDEV doesn't report attributes under subdirectories but can query them + * if specified as relative paths to the device's base path, + * e.g. /sys/devices/../0000:00:01.0/ is the device's base path as udev + * reports it, but we're interested in attributes under + * /sys/devices/../0000:00:01.0/mdev_supported_types/<type>/. So, let's + * strip the common part of the path and let udev chew the relative bit. + */ + devpath = udev_device_get_syspath(device); + relpath = sysfspath + strlen(devpath); + + /* When calling from the mdev child device, @sysfspath is a symbolic link + * to the actual mdev type (rather than a physical path), so we need to + * resolve it in order to get the type's name. + */ + if (virFileResolveLink(sysfspath, &tmp) < 0) + goto cleanup; + + if (VIR_STRDUP(mdev->type, last_component(tmp)) < 0) + goto cleanup; + + MDEV_GET_SYSFS_ATTR(name, udevGetStringSysfsAttr, + &mdev->name); + MDEV_GET_SYSFS_ATTR(description, udevGetStringSysfsAttr, + &mdev->description); + MDEV_GET_SYSFS_ATTR(device_api, udevGetStringSysfsAttr, + &mdev->device_api); + MDEV_GET_SYSFS_ATTR(available_instances, udevGetUintSysfsAttr, + &mdev->available_instances, 10); + + ret = 0; + cleanup: + VIR_FREE(attrpath); + VIR_FREE(tmp); + return ret; +} +#undef MDEV_GET_SYSFS_ATTR + + +static int +udevPCIGetMdevCaps(struct udev_device *device, + virNodeDevCapPCIDevPtr pcidata) +{ + int ret = -1; + DIR *dir = NULL; + struct dirent *entry; + char *path = NULL; + char *tmppath = NULL; + virNodeDevCapMdevPtr mdev = NULL; + + if (virAsprintf(&path, "%s/mdev_supported_types", + udev_device_get_syspath(device)) < 0) + return -1; + + if ((ret = virDirOpenIfExists(&dir, path)) <= 0) + goto cleanup; + + if (VIR_ALLOC(pcidata->mdevs) < 0) + goto cleanup; + + /* since udev doesn't provide means to list other than top-level + * attributes, we need to scan the subdirectories ourselves + */ + while ((ret = virDirRead(dir, &entry, path)) > 0) { + if (VIR_ALLOC(mdev) < 0) + goto cleanup; + + if (virAsprintf(&tmppath, "%s/%s", path, entry->d_name) < 0) + goto cleanup; + + if (udevGetMdevCaps(device, tmppath, mdev) < 0) + goto cleanup; + + if (VIR_APPEND_ELEMENT(pcidata->mdevs, pcidata->nmdevs, mdev) < 0) + goto cleanup; + + VIR_FREE(tmppath); + } + + ret = 0; + cleanup: + VIR_DIR_CLOSE(dir); + VIR_FREE(path); + VIR_FREE(tmppath); + virNodeDevCapMdevFree(mdev); + return ret; +} + static int udevProcessPCI(struct udev_device *device, @@ -412,6 +521,12 @@ udevProcessPCI(struct udev_device *device, } } + /* check whether the device is mediated devices framework capable, if so, + * process it + */ + if (udevPCIGetMdevCaps(device, pci_dev) < 0) + goto cleanup; + ret = 0; cleanup: -- 2.12.2

Start discovering the mediated devices on the host system and format the attributes for the child device into the XML. Compared to the parent device which reports generic information about the abstract mediated devices types, a child device only reports the type name it has been instantiated from and the iommu group number, since that's device specific compared to the rest of the info that can be gathered about mdevs at the moment. The resulting mdev child device XML: <device> <name>mdev_4b20d080_1b54_4048_85b3_a6a62d165c01</name> <path>/sys/devices/.../4b20d080-1b54-4048-85b3-a6a62d165c01</path> <parent>pci_0000_06_00_0</parent> <driver> <name>vfio_mdev</name> </driver> <capability type='mdev'> <type id='vendor-supplied-type-id'/> <iommuGroup number='NUM'/> <capability/> <device/> Signed-off-by: Erik Skultety <eskultet@redhat.com> --- src/conf/node_device_conf.c | 6 ++- src/node_device/node_device_udev.c | 87 +++++++++++++++++++++++++++++--------- 2 files changed, 71 insertions(+), 22 deletions(-) diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index 03d7993ab1..1f13484d9b 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -541,9 +541,13 @@ virNodeDeviceDefFormat(const virNodeDeviceDef *def) case VIR_NODE_DEV_CAP_DRM: virBufferEscapeString(&buf, "<type>%s</type>\n", virNodeDevDRMTypeToString(data->drm.type)); break; + case VIR_NODE_DEV_CAP_MDEV: + virBufferEscapeString(&buf, "<type id='%s'/>\n", data->mdev.type); + virBufferAsprintf(&buf, "<iommuGroup number='%u'/>\n", + data->mdev.iommuGroupNumber); + break; case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: - case VIR_NODE_DEV_CAP_MDEV: case VIR_NODE_DEV_CAP_LAST: break; } diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c index be031fa5a8..092d9456b2 100644 --- a/src/node_device/node_device_udev.c +++ b/src/node_device/node_device_udev.c @@ -324,9 +324,9 @@ udevTranslatePCIIds(unsigned int vendor, return 0; } -#define MDEV_GET_SYSFS_ATTR(attr, cb, ...) \ +#define MDEV_GET_SYSFS_ATTR(attr_name, dir, cb, ...) \ do { \ - if (virAsprintf(&attrpath, "%s/%s", relpath, #attr) < 0) \ + if (virAsprintf(&attrpath, "%s/%s", dir, #attr_name) < 0) \ goto cleanup; \ \ if (cb(device, attrpath, __VA_ARGS__) < 0) \ @@ -345,17 +345,6 @@ udevGetMdevCaps(struct udev_device *device, const char *relpath = NULL; /* diff between @sysfspath and @devpath */ char *tmp = NULL; - - /* UDEV doesn't report attributes under subdirectories but can query them - * if specified as relative paths to the device's base path, - * e.g. /sys/devices/../0000:00:01.0/ is the device's base path as udev - * reports it, but we're interested in attributes under - * /sys/devices/../0000:00:01.0/mdev_supported_types/<type>/. So, let's - * strip the common part of the path and let udev chew the relative bit. - */ - devpath = udev_device_get_syspath(device); - relpath = sysfspath + strlen(devpath); - /* When calling from the mdev child device, @sysfspath is a symbolic link * to the actual mdev type (rather than a physical path), so we need to * resolve it in order to get the type's name. @@ -366,14 +355,24 @@ udevGetMdevCaps(struct udev_device *device, if (VIR_STRDUP(mdev->type, last_component(tmp)) < 0) goto cleanup; - MDEV_GET_SYSFS_ATTR(name, udevGetStringSysfsAttr, - &mdev->name); - MDEV_GET_SYSFS_ATTR(description, udevGetStringSysfsAttr, - &mdev->description); - MDEV_GET_SYSFS_ATTR(device_api, udevGetStringSysfsAttr, - &mdev->device_api); - MDEV_GET_SYSFS_ATTR(available_instances, udevGetUintSysfsAttr, - &mdev->available_instances, 10); + /* UDEV doesn't report attributes under subdirectories by default but is + * able to query them if the path to the attribute is relative paths to the + * device's base path, e.g. /sys/devices/../0000:00:01.0/ is the device's + * base path as udev reports it, but we're interested in attributes under + * /sys/devices/../0000:00:01.0/mdev_supported_types/<type>/. So, let's + * strip the common part of the path and let udev chew the relative bit. + */ + devpath = udev_device_get_syspath(device); + relpath = sysfspath + strlen(devpath); + + MDEV_GET_SYSFS_ATTR(name, relpath, + udevGetStringSysfsAttr, &mdev->name); + MDEV_GET_SYSFS_ATTR(description, relpath, + udevGetStringSysfsAttr, &mdev->description); + MDEV_GET_SYSFS_ATTR(device_api, relpath, + udevGetStringSysfsAttr, &mdev->device_api); + MDEV_GET_SYSFS_ATTR(available_instances, relpath, + udevGetUintSysfsAttr, &mdev->available_instances, 10); ret = 0; cleanup: @@ -1099,6 +1098,51 @@ udevProcessSCSIGeneric(struct udev_device *dev, static int +udevProcessMediatedDevice(struct udev_device *dev, + virNodeDeviceDefPtr def) +{ + int ret = -1; + const char *uuidstr = NULL; + int iommugrp = -1; + int model = -1; + char *path = NULL; + virMediatedDevicePtr mdev = NULL; + virNodeDevCapMdevPtr data = &def->caps->data.mdev; + + if (virAsprintf(&path, "%s/mdev_type", udev_device_get_syspath(dev)) < 0) + goto cleanup; + + if (udevGetMdevCaps(dev, path, data) < 0) + goto cleanup; + + if ((model = virMediatedDeviceModelTypeFromString(data->device_api)) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Device API '%s' not supported yet"), + data->device_api); + goto cleanup; + } + + uuidstr = udev_device_get_sysname(dev); + if (!(mdev = virMediatedDeviceNew(uuidstr, model))) + goto cleanup; + + if ((iommugrp = virMediatedDeviceGetIOMMUGroupNum(mdev)) < 0) + goto cleanup; + + if (udevGenerateDeviceName(dev, def, NULL) != 0) + goto cleanup; + + data->iommuGroupNumber = iommugrp; + + ret = 0; + cleanup: + VIR_FREE(path); + virMediatedDeviceFree(mdev); + return ret; + +} + +static int udevGetDeviceNodes(struct udev_device *device, virNodeDeviceDefPtr def) { @@ -1217,6 +1261,7 @@ udevGetDeviceDetails(struct udev_device *device, case VIR_NODE_DEV_CAP_DRM: return udevProcessDRMDevice(device, def); case VIR_NODE_DEV_CAP_MDEV: + return udevProcessMediatedDevice(device, def); case VIR_NODE_DEV_CAP_SYSTEM: case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: -- 2.12.2

This introduces a new nested capability element of type 'mdev' with the resulting XML of the following format: <device> ... <capability type='pci'> ... <capability type='mdev'> <type id='vendor-supplied-id'> <description>optional, raw, unstructured resource allocation data </description> <device_api>vfio-pci</device_api> <available_instances>NUM</available_instances> </type> ... <type> ... </type> </capability> </capability> ... </device> Signed-off-by: Erik Skultety <eskultet@redhat.com> --- src/conf/node_device_conf.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index 1f13484d9b..99211de6f3 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -264,6 +264,30 @@ virNodeDeviceCapPCIDefFormat(virBufferPtr buf, virBufferAsprintf(buf, "<capability type='%s'/>\n", virPCIHeaderTypeToString(data->pci_dev.hdrType)); } + if (data->pci_dev.mdevs) { + virBufferAddLit(buf, "<capability type='mdev'>\n"); + virBufferAdjustIndent(buf, 2); + for (i = 0; i < data->pci_dev.nmdevs; i++) { + virNodeDevCapMdevPtr mdev = data->pci_dev.mdevs[i]; + virBufferEscapeString(buf, "<type id='%s'>\n", mdev->type); + virBufferAdjustIndent(buf, 2); + if (mdev->name) + virBufferAsprintf(buf, "<name>%s</name>\n", + mdev->name); + if (mdev->description) + virBufferAsprintf(buf, "<description>%s</description>\n", + mdev->description); + virBufferAsprintf(buf, "<device_api>%s</device_api>\n", + mdev->device_api); + virBufferAsprintf(buf, + "<available_instances>%u</available_instances>\n", + mdev->available_instances); + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</type>\n"); + } + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</capability>\n"); + } if (data->pci_dev.nIommuGroupDevices) { virBufferAsprintf(buf, "<iommuGroup number='%d'>\n", data->pci_dev.iommuGroupNumber); -- 2.12.2

Signed-off-by: Erik Skultety <eskultet@redhat.com> --- docs/drvnodedev.html.in | 91 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) diff --git a/docs/drvnodedev.html.in b/docs/drvnodedev.html.in index ed185c3df3..776c88cc87 100644 --- a/docs/drvnodedev.html.in +++ b/docs/drvnodedev.html.in @@ -180,5 +180,96 @@ ... <device></pre> + <h3><a name="MDEVCap">MDEV capability</a></h3> + <p> + A PCI device capable of creating mediated devices will include a nested + capability mdev which enumerates all the supported mdev types on the + physical device, along with the type attributes available through sysfs. + For a more info about mediated devices, refer to the + <a href="#MDEV">paragraph below</a>. + </p> + +<pre> +<device> +... + <driver> + <name>nvidia</name> + </driver> + <capability type='pci'> +... + <capability type='mdev'> + <type id='nvidia-11'> + <name>GRID M60-0B</name> + <description>num_heads=2, frl_config=45, framebuffer=512M, + max_resolution=2560x1600, max_instance=16</description> + <device_api>vfio-pci</device_api> + <available_instances>16</available_instances> + </type> + <!-- Here would come the rest of the available mdev types --> + </capability> +... + </capability> +</device></pre> + + <h2><a name="MDEV">Mediated devices (MDEVs)</a></h2> + <p> + Mediated devices (<span class="since">Since 3.2.0</span>) are software + devices defining resource allocation on the backing physical device which + in turn allows the parent physical device's resources to be divided into + several mediated devices, thus sharing the physical device's performance + among multiple guests. Unlike SR-IOV however, where a PCIe device appears + as multiple separate PCIe devices on the host's PCI bus, mediated devices + only appear on the mdev virtual bus. Therefore, no detach/reattach + procedure from/to the host driver procedure is involved even though + mediated devices are used in a direct device assignment manner.<br/> + <br/> + At the moment, libvirt can only list the available mediated devices on the + host and display all information libvirt can gather about them, see the + examples below. Because mediated devices are instantiated from vendor + specific templates, simply called 'types', information about the resource + allocation for a specific type is contained within the backing physical + parent device (see <a href="#PCI">PCI host devices</a> for an example). + </p> + + <h3>Example of a mediated device</h3> + <pre> +<device> + <name>mdev_4b20d080_1b54_4048_85b3_a6a62d165c01</name> + <path>/sys/devices/pci0000:00/0000:00:02.0/4b20d080-1b54-4048-85b3-a6a62d165c01</path> + <parent>pci_0000_06_00_0</parent> + <driver> + <name>vfio_mdev</name> + </driver> + <capability type='mdev'> + <type id='nvidia-11'/> + <iommuGroup number='12'/> + <capability/> +<device/></pre> + + <p> + To see the supported mediated device types on a specific physical device + use the following: + </p> + + <pre> +$ ls /sys/class/mdev_bus/<device>/mdev_supported_types</pre> + + <p> + To manually instantiate a mediated device, use one of the following as a + reference: + </p> + + <pre> +$ uuidgen > /sys/class/mdev_bus/<device>/mdev_supported_types/<type>/create +... +$ echo <UUID> > /sys/class/mdev_bus/<device>/mdev_supported_types/<type>/create</pre> + + <p> + Manual removal of a mediated device is then performed as follows: + </p> + + <pre> +$ echo 1 > /sys/bus/mdev/devices/<uuid>/remove</pre> + </body> </html> -- 2.12.2