From 9121b1930ffd0d65757e2204ecec03d8bfb01c3c Mon Sep 17 00:00:00 2001 From: Wen Congyang Date: Wed, 6 Apr 2011 15:13:10 +0800 Subject: [PATCH] rename pciUnBindDeviceFromStub() to pciUnbindDeviceFromStub() and float it up This patch do the following things: 1. rename the function as 'Unbind' is better than 'UnBind'. 2. pciUnbindDeviceFromStub() will be used in the function pciBindDeviceToStub() in next patch. Float it up, instead of having to have a forward declaration --- src/util/pci.c | 134 ++++++++++++++++++++++++------------------------- 1 file changed, 67 insertions(+), 67 deletions(-) diff --git a/src/util/pci.c b/src/util/pci.c index a7b8caaa3b..e69813c3b7 100644 --- a/src/util/pci.c +++ b/src/util/pci.c @@ -867,6 +867,72 @@ recheck: return NULL; } +static int +pciUnbindDeviceFromStub(pciDevice *dev, const char *driver) +{ + int result = -1; + char *drvdir = NULL; + char *path = NULL; + + /* If the device is bound to stub, unbind it. + */ + if (pciDriverDir(&drvdir, driver) < 0 || + pciDeviceFile(&path, dev->name, "driver") < 0) { + goto cleanup; + } + + if (virFileExists(drvdir) && virFileLinkPointsTo(path, drvdir)) { + if (pciDriverFile(&path, driver, "unbind") < 0) { + goto cleanup; + } + + if (virFileWriteStr(path, dev->name, 0) < 0) { + virReportSystemError(errno, + _("Failed to bind PCI device '%s' to %s"), + dev->name, driver); + goto cleanup; + } + } + + /* Xen's pciback.ko wants you to use remove_slot on the specific device */ + if (pciDriverFile(&path, driver, "remove_slot") < 0) { + goto cleanup; + } + + if (virFileExists(path) && virFileWriteStr(path, dev->name, 0) < 0) { + virReportSystemError(errno, + _("Failed to remove slot for PCI device '%s' to %s"), + dev->name, driver); + goto cleanup; + } + + /* Trigger a re-probe of the device is not in the stub's dynamic + * ID table. If the stub is available, but 'remove_id' isn't + * available, then re-probing would just cause the device to be + * re-bound to the stub. + */ + if (pciDriverFile(&path, driver, "remove_id") < 0) { + goto cleanup; + } + + if (!virFileExists(drvdir) || virFileExists(path)) { + if (virFileWriteStr(PCI_SYSFS "drivers_probe", dev->name, 0) < 0) { + virReportSystemError(errno, + _("Failed to trigger a re-probe for PCI device '%s'"), + dev->name); + goto cleanup; + } + } + + result = 0; + +cleanup: + VIR_FREE(drvdir); + VIR_FREE(path); + + return result; +} + static int pciBindDeviceToStub(pciDevice *dev, const char *driver) @@ -983,72 +1049,6 @@ pciDettachDevice(pciDevice *dev, pciDeviceList *activeDevs) return pciBindDeviceToStub(dev, driver); } -static int -pciUnBindDeviceFromStub(pciDevice *dev, const char *driver) -{ - int result = -1; - char *drvdir = NULL; - char *path = NULL; - - /* If the device is bound to stub, unbind it. - */ - if (pciDriverDir(&drvdir, driver) < 0 || - pciDeviceFile(&path, dev->name, "driver") < 0) { - goto cleanup; - } - - if (virFileExists(drvdir) && virFileLinkPointsTo(path, drvdir)) { - if (pciDriverFile(&path, driver, "unbind") < 0) { - goto cleanup; - } - - if (virFileWriteStr(path, dev->name, 0) < 0) { - virReportSystemError(errno, - _("Failed to bind PCI device '%s' to %s"), - dev->name, driver); - goto cleanup; - } - } - - /* Xen's pciback.ko wants you to use remove_slot on the specific device */ - if (pciDriverFile(&path, driver, "remove_slot") < 0) { - goto cleanup; - } - - if (virFileExists(path) && virFileWriteStr(path, dev->name, 0) < 0) { - virReportSystemError(errno, - _("Failed to remove slot for PCI device '%s' to %s"), - dev->name, driver); - goto cleanup; - } - - /* Trigger a re-probe of the device is not in the stub's dynamic - * ID table. If the stub is available, but 'remove_id' isn't - * available, then re-probing would just cause the device to be - * re-bound to the stub. - */ - if (pciDriverFile(&path, driver, "remove_id") < 0) { - goto cleanup; - } - - if (!virFileExists(drvdir) || virFileExists(path)) { - if (virFileWriteStr(PCI_SYSFS "drivers_probe", dev->name, 0) < 0) { - virReportSystemError(errno, - _("Failed to trigger a re-probe for PCI device '%s'"), - dev->name); - goto cleanup; - } - } - - result = 0; - -cleanup: - VIR_FREE(drvdir); - VIR_FREE(path); - - return result; -} - int pciReAttachDevice(pciDevice *dev, pciDeviceList *activeDevs) { @@ -1065,7 +1065,7 @@ pciReAttachDevice(pciDevice *dev, pciDeviceList *activeDevs) return -1; } - return pciUnBindDeviceFromStub(dev, driver); + return pciUnbindDeviceFromStub(dev, driver); } /* Certain hypervisors (like qemu/kvm) map the PCI bar(s) on -- GitLab