[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v15 0/7] Remus/Libxl: Remus network buffering and drbd disk
This patch series adds support for network buffering and drbd disk in the Remus codebase in libxl. the code is also hosted on github: url: https://github.com/laijs/xen branch: remus-v15 Changes in v15: The first patch in v14 has been taken, so remove it from the patchset. Add a patch to Update maintained files of REMUS. Rebased. Changes in v14: Addressed IanJ's comments. Rebased. Changes in v13: Addressed Konrad's comments. Rebased. Changes in v12: Add disk buffering cmdline switch. Changes in v11: Addressed comments from Ian J and Shriram. Add drbd disk implement into this patch series. Changes in V10: Restructured the whole patch series. Introduce the remus device abstract layer. Make remus checkpoint asynchronous. Changes in V9: Use async exec script api to exec scripts. Changes in V8: Applied some comments(by IanJ). Merge some struct definitions to it's implementation. (2/3/5 in V7 => 3 in V8) Changes in V7: Applied missing comments(by IanJ). Applied Shriram comments. merge netbufering tangled setup/teardown code into one patch. (2/6/8 in V6 => 5 in V7. 9/10 in V6 => 7 in V7) Changes in V6: Applied Ian Jackson's comments of V5 series. the [PATCH 2/4 V5] is split by small functionalities. [PATCH 4/4 V5] --> [PATCH 13/13] netbuffer is default enabled. Changes in V5: Merge hotplug script patch (2/5) and hotplug script setup/teardown patch (3/5) into a single patch. Changes in V4: [1/5] Remove check for libnl command line utils in autoconf checks [2/5] minor nits [3/5] define LIBXL_HAVE_REMUS_NETBUF in libxl.h [4/5] clean ups. Make the usleep in checkpoint callback asynchronous [5/5] minor nits Changes in V3: [1/5] Fix redundant checks in configure scripts (based on Ian Campbell's suggestions) [2/5] Introduce locking in the script, during IFB setup. Add xenstore paths used by netbuf scripts to xenstore-paths.markdown [3/5] Hotplug scripts setup/teardown invocations are now asynchronous following IanJ's feedback. However, the invocations are still sequential. [5/5] Allow per-domain specification of netbuffer scripts in xl remus commmand. And minor nits throughout the series based on feedback from the last version Changes in V2: [1/5] Configure script will automatically enable/disable network buffer support depending on the availability of the appropriate libnl3 version. [If libnl3 is unavailable, a warning message will be printed to let the user know that the feature has been disabled.] use macros from pkg.m4 instead of pkg-config commands removed redundant checks for libnl3 libraries. [3,4/5] - Minor nits. Version 1: [1/5] Changes to autoconf scripts to check for libnl3. Add linker flags to libxl Makefile. [2/5] External script to setup/teardown network buffering using libnl3's CLI. This script will be invoked by libxl before starting Remus. The script's main job is to bring up an IFB device with plug qdisc attached to it. It then re-routes egress traffic from the guest's vif to the IFB device. [3/5] Libxl code to invoke the external setup script, followed by netlink related setup to obtain a handle on the output buffers attached to each vif. [4/5] Libxl interaction with network buffer module in the kernel via libnl3 API. [5/5] xl cmdline switch to explicitly enable network buffering when starting remus. Few things to note(by shriram): a) Based on previous email discussions, the setup/teardown task has been moved to a hotplug style shell script which can be customized as desired, instead of implementing it as C code inside libxl. b) Libnl3 is not available on NetBSD. Nor is it available on CentOS (Linux). So I have made network buffering support an optional feature so that it can be disabled if desired. c) NetBSD does not have libnl3. So I have put the setup script under tools/hotplug/Linux folder. thanks Legend: A - acked D - previous acked, but new change introduced so acked-by dropped M - Modified S - the same version as last round No marker - new patch Yang Hongyang (7): A remus: add libnl3 dependency for network buffering support S remus: introduce remus device S remus netbuffer: implement remus network buffering for nic devices S remus drbd: Implement remus drbd replicated disk S libxl: network buffering cmdline switch S libxl: disk buffering cmdline switch MAINTAINERS: Update maintained files of REMUS MAINTAINERS | 5 + README | 4 + config/Tools.mk.in | 4 + docs/README.remus | 6 + docs/man/xl.conf.pod.5 | 6 + docs/man/xl.pod.1 | 15 +- docs/misc/xenstore-paths.markdown | 4 + tools/configure.ac | 16 ++ tools/hotplug/Linux/Makefile | 2 + tools/hotplug/Linux/block-drbd-probe | 85 ++++++ tools/hotplug/Linux/remus-netbuf-setup | 203 +++++++++++++ tools/libxl/Makefile | 15 + tools/libxl/libxl.c | 58 +++- tools/libxl/libxl.h | 6 + tools/libxl/libxl_dom.c | 132 ++++++++- tools/libxl/libxl_internal.h | 199 +++++++++++++ tools/libxl/libxl_netbuffer.c | 506 +++++++++++++++++++++++++++++++++ tools/libxl/libxl_nonetbuffer.c | 58 ++++ tools/libxl/libxl_remus_device.c | 411 ++++++++++++++++++++++++++ tools/libxl/libxl_remus_disk_drbd.c | 239 ++++++++++++++++ tools/libxl/libxl_types.idl | 4 + tools/libxl/xl.c | 4 + tools/libxl/xl.h | 1 + tools/libxl/xl_cmdimpl.c | 32 ++- tools/libxl/xl_cmdtable.c | 4 + 25 files changed, 1993 insertions(+), 26 deletions(-) create mode 100755 tools/hotplug/Linux/block-drbd-probe create mode 100644 tools/hotplug/Linux/remus-netbuf-setup create mode 100644 tools/libxl/libxl_netbuffer.c create mode 100644 tools/libxl/libxl_nonetbuffer.c create mode 100644 tools/libxl/libxl_remus_device.c create mode 100644 tools/libxl/libxl_remus_disk_drbd.c -- 1.9.1 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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