# git rev-parse -q --verify 20ce0c247b2500cb7060cb115274ba71abda2626^{commit} 20ce0c247b2500cb7060cb115274ba71abda2626 already have revision, skipping fetch # git checkout -q -f -B kisskb 20ce0c247b2500cb7060cb115274ba71abda2626 # git clean -qxdf # < git log -1 # commit 20ce0c247b2500cb7060cb115274ba71abda2626 # Author: Krishna Kumar # Date: Mon Jul 1 13:15:07 2024 +0530 # # powerpc/pci: Hotplug driver bridge support # # There is an issue with the hotplug operation when it's done on the # bridge/switch slot. The bridge-port and devices behind the bridge, which # become offline by hot-unplug operation, don't get hot-plugged/enabled # by doing hot-plug operation on that slot. Only the first port of the # bridge gets enabled and the remaining port/devices remain unplugged. The # hot plug/unplug operation is done by the hotplug driver (drivers/pci/ # hotplug/pnv_php.c). # # This behavior is due to missing code for the switch/bridge. The existing # driver depends on pci_hp_add_devices() function for device enablement. # This function calls pci_scan_slot() on only one device-node/port of the # bridge, not on all the siblings' device-node/port. # # The missing code needs to be added which will find all the sibling # device-nodes/bridge-ports and will run explicit pci_scan_slot() # on those. A new function has been added for this purpose # which is invoked from pci_hp_add_devices(). This new function # traverse_siblings_and_scan_slot() gets all the sibling bridge-ports by # traversal and explicitly invokes pci_scan_slot() on them. # # Tested-by: Shawn Anastasio # Signed-off-by: Krishna Kumar # [mpe: Move the code into pci-hotplug.c] # Signed-off-by: Michael Ellerman # Link: https://msgid.link/20240701074513.94873-3-krishnak@linux.ibm.com # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 20ce0c247b2500cb7060cb115274ba71abda2626 # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_defconfig+FA_DUMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- pseries_defconfig Using /kisskb/src/arch/powerpc/configs/ppc64_defconfig as base Merging /kisskb/src/arch/powerpc/configs/le.config Merging /kisskb/src/arch/powerpc/configs/guest.config Value of CONFIG_VIRTIO_BLK is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config: Previous value: CONFIG_VIRTIO_BLK=m New value: CONFIG_VIRTIO_BLK=y Value of CONFIG_SCSI_VIRTIO is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config: Previous value: CONFIG_SCSI_VIRTIO=m New value: CONFIG_SCSI_VIRTIO=y Value of CONFIG_VIRTIO_NET is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config: Previous value: CONFIG_VIRTIO_NET=m New value: CONFIG_VIRTIO_NET=y Value of CONFIG_VIRTIO_CONSOLE is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config: Previous value: CONFIG_VIRTIO_CONSOLE=m New value: CONFIG_VIRTIO_CONSOLE=y Value of CONFIG_VIRTIO_PCI is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config: Previous value: CONFIG_VIRTIO_PCI=m New value: CONFIG_VIRTIO_PCI=y Value of CONFIG_VIRTIO_BALLOON is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config: Previous value: CONFIG_VIRTIO_BALLOON=m New value: CONFIG_VIRTIO_BALLOON=y Value of CONFIG_VHOST_NET is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config: Previous value: CONFIG_VHOST_NET=m New value: CONFIG_VHOST_NET=y Value of CONFIG_IBMVETH is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config: Previous value: CONFIG_IBMVETH=m New value: CONFIG_IBMVETH=y Value of CONFIG_IBMVNIC is redefined by fragment /kisskb/src/arch/powerpc/configs/guest.config: Previous value: CONFIG_IBMVNIC=m New value: CONFIG_IBMVNIC=y Merging /kisskb/src/arch/powerpc/configs/kvm_guest.config # # merged configuration written to .config (needs make) # # Added to kconfig CONFIG_CRASH_DUMP=y # Added to kconfig CONFIG_FA_DUMP=y # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_defconfig+FA_DUMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_defconfig+FA_DUMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_defconfig+FA_DUMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-next_pseries_defconfig+FA_DUMP_powerpc-gcc5 # Build took: 0:06:21.381932