)]}'
{
  "log": [
    {
      "commit": "6e105e0593055dc4aae21df7bca3868045754148",
      "tree": "87fc747585c5a77cebc6b94e3f2e39de366b6d9a",
      "parents": [
        "dc18f0800f5f16460030a9623d4fcc165d607edf"
      ],
      "author": {
        "name": "Sjur Brændeland",
        "email": "sjur.brandeland@stericsson.com",
        "time": "Wed Feb 13 15:52:36 2013 +1030"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Wed Feb 13 17:00:32 2013 +1030"
      },
      "message": "virtio: Add module driver macro for virtio drivers.\n\nAdd helper macro for drivers that don\u0027t do anything\nspecial in module init/exit.\n\nSigned-off-by: Sjur Brændeland \u003csjur.brandeland@stericsson.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "9350393239153c4a98cbed4d69b9ed81e37d5e74",
      "tree": "180ddb2f2968721c52ed9b5917378aff00c7b7f6",
      "parents": [
        "0d34cc2d6d904e2d0160e42734bccc1cb391cec0"
      ],
      "author": {
        "name": "Stephen Hemminger",
        "email": "stephen@networkplumber.org",
        "time": "Sun Feb 10 15:57:38 2013 +1030"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon Feb 11 15:32:17 2013 +1030"
      },
      "message": "virtio: make config_ops const\n\nIt is just a table of function pointers, make it const for cleanliness and security\nreasons.\n\nSigned-off-by: Stephen Hemminger \u003cstephen@networkplumber.org\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "9a2bdcc85d28506d4e5d4a9618fb133a3f40945d",
      "tree": "ac571e092d7542a5c5121d25b5f8f02cdfbb7a41",
      "parents": [
        "9bffdca8c64a72ac54c47a552734ab457bc720d4"
      ],
      "author": {
        "name": "Wanlong Gao",
        "email": "gaowanlong@cn.fujitsu.com",
        "time": "Mon Dec 10 16:38:33 2012 +0800"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Tue Dec 18 15:20:43 2012 +1030"
      },
      "message": "virtio: add drv_to_virtio to make code clearly\n\nAdd drv_to_virtio wrapper to get virtio_driver from device_driver.\n\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: \"Michael S. Tsirkin\" \u003cmst@redhat.com\u003e\nSigned-off-by: Wanlong Gao \u003cgaowanlong@cn.fujitsu.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "9bffdca8c64a72ac54c47a552734ab457bc720d4",
      "tree": "c009f6f19b689ceac28122a2ea7109b4fccada95",
      "parents": [
        "40f9938c4c69183c5ceaca74b77aff636cc79623"
      ],
      "author": {
        "name": "Wanlong Gao",
        "email": "gaowanlong@cn.fujitsu.com",
        "time": "Tue Dec 11 11:04:50 2012 +1030"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Tue Dec 18 15:20:42 2012 +1030"
      },
      "message": "virtio: use dev_to_virtio wrapper in virtio\n\nUse dev_to_virtio wrapper in virtio to make code clearly.\n\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: \"Michael S. Tsirkin\" \u003cmst@redhat.com\u003e\nSigned-off-by: Wanlong Gao \u003cgaowanlong@cn.fujitsu.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "06ca287dbac9cc19d04ac2901b8c4882c03795ff",
      "tree": "37574b40e4b18070fe92e88f722035159aa341fb",
      "parents": [
        "1ce6853aa0f8e1cc3ae811a85d50cde6ad0ef735"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Tue Oct 16 23:56:14 2012 +1030"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Tue Dec 18 15:20:31 2012 +1030"
      },
      "message": "virtio: move queue_index and num_free fields into core struct virtqueue.\n\nThey\u0027re generic concepts, so hoist them.  This also avoids accessor\nfunctions (though kept around for merge with DaveM\u0027s net tree).\n\nThis goes even further than Jason Wang\u0027s 17bb6d4088 patch\n(\"virtio-ring: move queue_index to vring_virtqueue\") which moved the\nqueue_index from the specific transport.\n\nAcked-by: Michael S. Tsirkin \u003cmst@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "17bb6d40880d4178f5f8a75900ed8c9ff47d3fb2",
      "tree": "f9888385b33c144f909eff14713a328dc72296f2",
      "parents": [
        "7a23eb28fa645f1f0c2ec38274c11bc78c50c047"
      ],
      "author": {
        "name": "Jason Wang",
        "email": "jasowang@redhat.com",
        "time": "Tue Aug 28 13:54:13 2012 +0200"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Fri Sep 28 15:05:15 2012 +0930"
      },
      "message": "virtio-ring: move queue_index to vring_virtqueue\n\nInstead of storing the queue index in transport-specific virtio structs,\nthis patch moves them to vring_virtqueue and introduces an helper to get\nthe value.  This lets drivers simplify their management and tracing of\nvirtqueues.\n\nSigned-off-by: Jason Wang \u003cjasowang@redhat.com\u003e\nSigned-off-by: Paolo Bonzini \u003cpbonzini@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "59057fbc37178f10a196ab7ec170b80273f75a47",
      "tree": "79b85034672f27cf605d90736c8f1a75ac2c0656",
      "parents": [
        "0b1017aab197271a78169fde3d7e487bb721997c"
      ],
      "author": {
        "name": "Nicholas Bellinger",
        "email": "nab@linux-iscsi.org",
        "time": "Wed Jul 11 21:22:16 2012 +0000"
      },
      "committer": {
        "name": "James Bottomley",
        "email": "JBottomley@Parallels.com",
        "time": "Fri Jul 20 08:59:03 2012 +0100"
      },
      "message": "[SCSI] virtio-scsi: Add vdrv-\u003escan for post VIRTIO_CONFIG_S_DRIVER_OK LUN scanning\n\nThis patch changes virtio-scsi to use a new virtio_driver-\u003escan() callback\nso that scsi_scan_host() can be properly invoked once virtio_dev_probe() has\nset add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK) to signal active virtio-ring\noperation, instead of from within virtscsi_probe().\n\nThis fixes a bug where SCSI LUN scanning for both virtio-scsi-raw and\nvirtio-scsi/tcm_vhost setups was happening before VIRTIO_CONFIG_S_DRIVER_OK\nhad been set, causing VIRTIO_SCSI_S_BAD_TARGET to occur.  This fixes a bug\nwith virtio-scsi/tcm_vhost where LUN scan was not detecting LUNs.\n\nTested with virtio-scsi-raw + virtio-scsi/tcm_vhost w/ IBLOCK on 3.5-rc2 code.\n\nSigned-off-by: Nicholas Bellinger \u003cnab@linux-iscsi.org\u003e\nAcked-by: Paolo Bonzini \u003cpbonzini@redhat.com\u003e\nSigned-off-by: James Bottomley \u003cJBottomley@Parallels.com\u003e\n"
    },
    {
      "commit": "f38f8387cbdc4138a492ce9f2a5f04fd3cd3cf33",
      "tree": "037dfe639de15cbf6be59182872531a23cc20398",
      "parents": [
        "e47d854e57698d3be4579d2118f6057f9f12a17c"
      ],
      "author": {
        "name": "Amit Shah",
        "email": "amit.shah@redhat.com",
        "time": "Thu Mar 29 12:50:20 2012 +0530"
      },
      "committer": {
        "name": "Amit Shah",
        "email": "amit.shah@redhat.com",
        "time": "Sat Mar 31 08:09:50 2012 +0530"
      },
      "message": "virtio: drop thaw PM operation\n\nThe thaw operation was used by the balloon driver, but after the last\ncommit there\u0027s no reason to have separate thaw and restore callbacks.\n\nSigned-off-by: Amit Shah \u003camit.shah@redhat.com\u003e\n"
    },
    {
      "commit": "f0fe6f11503fa9880867554350ac5d3092c47251",
      "tree": "0f95d79a528809e169a742afeafddd041d275181",
      "parents": [
        "d077536386595309060dda57e7b7474c501a589b"
      ],
      "author": {
        "name": "Amit Shah",
        "email": "amit.shah@redhat.com",
        "time": "Thu Dec 22 16:58:26 2011 +0530"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Thu Jan 12 15:44:44 2012 +1030"
      },
      "message": "virtio: pci: add PM notification handlers for restore, freeze, thaw, poweroff\n\nHandle thaw, restore and freeze notifications from the PM core.  Expose\nthese to individual virtio drivers that can quiesce and resume vq\noperations.  For drivers not implementing the thaw() method, use the\nrestore method instead.\n\nThese functions also save device-specific data so that the device can be\nput in pre-suspend state after resume, and disable and enable the PCI\ndevice in the freeze and resume functions, respectively.\n\nSigned-off-by: Amit Shah \u003camit.shah@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "41f0377f73039ca6fe97a469d1941a89cd9757f1",
      "tree": "380814eb3ad8092069c784539b5b88f8a9506240",
      "parents": [
        "f96fde41f7f9af6cf20f6a1919f5d9670f84d574"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Thu Jan 12 15:44:43 2012 +1030"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Thu Jan 12 15:44:43 2012 +1030"
      },
      "message": "virtio: support unlocked queue kick\n\nBased on patch by Christoph for virtio_blk speedup:\n\n\tSplit virtqueue_kick to be able to do the actual notification\n\toutside the lock protecting the virtqueue.  This patch was\n\toriginally done by Stefan Hajnoczi, but I can\u0027t find the\n\toriginal one anymore and had to recreated it from memory.\n\tPointers to the original or corrections for the commit message\n\tare welcome.\n\nStefan\u0027s patch was here:\n\n\thttps://github.com/stefanha/linux/commit/a6d06644e3a58e57a774e77d7dc34c4a5a2e7496\n\thttp://www.spinics.net/lists/linux-virtualization/msg14616.html\n\nThird time\u0027s the charm!\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "f96fde41f7f9af6cf20f6a1919f5d9670f84d574",
      "tree": "14b8a0343b255989ac8ba0ea34e18dca419723df",
      "parents": [
        "5dfc17628d57f9e62043ed0cba03a6e3eb019a78"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Thu Jan 12 15:44:42 2012 +1030"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Thu Jan 12 15:44:42 2012 +1030"
      },
      "message": "virtio: rename virtqueue_add_buf_gfp to virtqueue_add_buf\n\nRemove wrapper functions. This makes the allocation type explicit in\nall callers; I used GPF_KERNEL where it seemed obvious, left it at\nGFP_ATOMIC otherwise.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nReviewed-by: Christoph Hellwig \u003chch@lst.de\u003e\n"
    },
    {
      "commit": "5dfc17628d57f9e62043ed0cba03a6e3eb019a78",
      "tree": "a488dd3ea081166342904224db3cf039758f23d4",
      "parents": [
        "1e214a5c1a7e901fc8e98ad6ef84f11005f9ee9d"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Thu Jan 12 15:44:42 2012 +1030"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Thu Jan 12 15:44:42 2012 +1030"
      },
      "message": "virtio: document functions better.\n\nThe old documentation is left over from when we used a structure with\nstrategy pointers.\n\nAnd move the documentation to the C file as per kernel practice.\nThough I disagree...\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nReviewed-by: Christoph Hellwig \u003chch@lst.de\u003e\n"
    },
    {
      "commit": "5f41f8bfc95e84536207b2af8918f2e674164a42",
      "tree": "8494d4762a7ab221e6fd49e32ec25edd063abb1c",
      "parents": [
        "77dd7693c52d002d24be6842fb0b766116a6079f"
      ],
      "author": {
        "name": "Wang Sheng-Hui",
        "email": "shhuiw@gmail.com",
        "time": "Thu Aug 25 21:04:05 2011 +0800"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Wed Nov 02 11:40:59 2011 +1030"
      },
      "message": "virtio.h: correct comment for struct virtio_driver\n\nThe patch is against 3.0.\n\nSigned-off-by: Wang Sheng-Hui \u003cshhuiw@gmail.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "8f9f4668b37bcc877156dd525a856055735c8d24",
      "tree": "a9d0a7cc6729884564f5d2bfb8edbdcc678b3f1c",
      "parents": [
        "ca35a0ef85e8ed6df6d5ab01fb6c3530cca0c469"
      ],
      "author": {
        "name": "Rick Jones",
        "email": "rick.jones2@hp.com",
        "time": "Wed Oct 19 08:10:59 2011 +0000"
      },
      "committer": {
        "name": "David S. Miller",
        "email": "davem@davemloft.net",
        "time": "Mon Oct 24 02:07:21 2011 -0400"
      },
      "message": "Add ethtool -g support to virtio_net\n\nAdd support for reporting ring sizes via ethtool -g to the virtio_net\ndriver.\n\nSigned-off-by: Rick Jones \u003crick.jones2@hp.com\u003e\nAcked-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nAcked-by: Michael S. Tsirkin \u003cmst@redhat.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n"
    },
    {
      "commit": "7ab358c23cbf15cea08129cd722d1ce77433a94d",
      "tree": "713d38823efda30222230314bcae26b919782f16",
      "parents": [
        "4423fe40b03f32b11e72ecfa03077e702e55d5a9"
      ],
      "author": {
        "name": "Michael S. Tsirkin",
        "email": "mst@redhat.com",
        "time": "Fri May 20 02:11:14 2011 +0300"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon May 30 11:14:16 2011 +0930"
      },
      "message": "virtio: add api for delayed callbacks\n\nAdd an API that tells the other side that callbacks\nshould be delayed until a lot of work has been done.\nImplement using the new event_idx feature.\n\nNote: it might seem advantageous to let the drivers\nask for a callback after a specific capacity has\nbeen reached. However, as a single head can\nfree many entries in the descriptor table,\nwe don\u0027t really have a clue about capacity\nuntil get_buf is called. The API is the simplest\nto implement at the moment, we\u0027ll see what kind of\nhints drivers can pass when there\u0027s more than one\nuser of the feature.\n\nSigned-off-by: Michael S. Tsirkin \u003cmst@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "bbd603efb4238cf78083c00f0a81adfa8994aa33",
      "tree": "3980961f9dbf08e748b3c2de56caf43dec21aa76",
      "parents": [
        "dc3f5e68f846eec38fb31d78f0b6e83633ad375e"
      ],
      "author": {
        "name": "Michael S. Tsirkin",
        "email": "mst@redhat.com",
        "time": "Thu Apr 29 17:26:37 2010 +0300"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Wed May 19 22:15:46 2010 +0930"
      },
      "message": "virtio: add_buf_gfp\n\nAdd an add_buf variant that gets gfp parameter. Use that\nto allocate indirect buffers.\n\nSigned-off-by: Michael S. Tsirkin \u003cmst@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "7c5e9ed0c84e7d70d887878574590638d5572659",
      "tree": "c929c367c6854f021b787fa99fc56d37f64d9bc0",
      "parents": [
        "1915a712f210f0b63d10bc4f875e8e66aac7a2c4"
      ],
      "author": {
        "name": "Michael S. Tsirkin",
        "email": "mst@redhat.com",
        "time": "Mon Apr 12 16:19:07 2010 +0300"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Wed May 19 22:15:43 2010 +0930"
      },
      "message": "virtio_ring: remove a level of indirection\n\nWe have a single virtqueue_ops implementation,\nand it seems unlikely we\u0027ll get another one\nat this point. So let\u0027s remove an unnecessary\nlevel of indirection: it would be very easy to\nre-add it if another implementation surfaces.\n\nSigned-off-by: Michael S. Tsirkin \u003cmst@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "316f25f5b3d547ce892d370f99f08a27276896ff",
      "tree": "2e35e3351b62ab4af834a164d3dcca2cb23fa682",
      "parents": [
        "bdb4a1305723f985249210a803105dbc48e86b64"
      ],
      "author": {
        "name": "Michael S. Tsirkin",
        "email": "mst@redhat.com",
        "time": "Mon Apr 12 16:18:25 2010 +0300"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Wed May 19 22:15:41 2010 +0930"
      },
      "message": "virtio: add virtqueue_ vq_ops wrappers\n\nAdd inline functions that wrap vq-\u003evq_ops-\u003e calls\n\nSigned-off-by: Michael S. Tsirkin \u003cmst@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "86c8437383acd85c05ec7c9a004f59fe7ac9821a",
      "tree": "05c2b805162f0aaf8f7d52e0b7fab4e12f8dcb75",
      "parents": [
        "97ee9b0257402f4731b55dfea42f24d26d793ddf"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Sat Mar 06 04:44:15 2010 +0000"
      },
      "committer": {
        "name": "Eric Van Hensbergen",
        "email": "ericvh@gmail.com",
        "time": "Sat Mar 13 08:57:29 2010 -0600"
      },
      "message": "net/9p: Add sysfs mount_tag file for virtio 9P device\n\nThis adds a new file for virtio 9P device. The file\ncontain details of the mount device name that should\nbe used to mount the 9P file system.\n\nEx: /sys/devices/virtio-pci/virtio1/mount_tag  file now\ncontian the tag name to be used to mount the 9P file system.\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nSigned-off-by: Eric Van Hensbergen \u003cericvh@gmail.com\u003e\n"
    },
    {
      "commit": "c021eac4148c16bf53baa0dd14e8ebee6f39dab5",
      "tree": "558db2ede74488606614d6e7e277f9914e38fbc1",
      "parents": [
        "69740c8ba878f58bc3c71f74618fc2cd1da990da"
      ],
      "author": {
        "name": "Shirley Ma",
        "email": "mashirle@us.ibm.com",
        "time": "Mon Jan 18 19:15:23 2010 +0530"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Wed Feb 24 14:22:27 2010 +1030"
      },
      "message": "virtio: Add ability to detach unused buffers from vrings\n\nThere\u0027s currently no way for a virtio driver to ask for unused\nbuffers, so it has to keep a list itself to reclaim them at shutdown.\nThis is redundant, since virtio_ring stores that information.  So\nadd a new hook to do this.\n\nSigned-off-by: Shirley Ma \u003cxma@us.ibm.com\u003e\nSigned-off-by: Amit Shah \u003camit.shah@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "3c1b27d5043086a485f8526353ae9fe37bfa1065",
      "tree": "e3b6eda3c66bcd1fc3af6e7fa6e4e3af77459474",
      "parents": [
        "f68d24082e22ccee3077d11aeb6dc5354f0ca7f1"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Wed Sep 23 22:26:31 2009 -0600"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Wed Sep 23 22:26:31 2009 +0930"
      },
      "message": "virtio: make add_buf return capacity remaining\n\nThis API change means that virtio_net can tell how much capacity\nremains for buffers.  It\u0027s necessarily fuzzy, since\nVIRTIO_RING_F_INDIRECT_DESC means we can fit any number of descriptors\nin one, *if* we can kmalloc.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Dinesh Subhraveti \u003cdineshs@us.ibm.com\u003e\n"
    },
    {
      "commit": "9499f5e7ed5224c40706f0cec6542a9916bc7606",
      "tree": "3e4e1b36d3d549ea356e88e6e44359a887c6ee01",
      "parents": [
        "ef688e151c00e5d529703be9a04fd506df8bc54e"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Fri Jun 12 22:16:35 2009 -0600"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Fri Jun 12 22:16:36 2009 +0930"
      },
      "message": "virtio: add names to virtqueue struct, mapping from devices to queues.\n\nAdd a linked list of all virtqueues for a virtio device: this helps for\ndebugging and is also needed for upcoming interface change.\n\nAlso, add a \"name\" field for clearer debug messages.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "20f77f5654042cf484d8964b618faf9d620f639b",
      "tree": "d5007f2e5ec72062532b7930ef0a6f68708d9658",
      "parents": [
        "8ebf975608aaebd7feb33d77f07ba21a6380e086"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Fri Jun 12 22:16:33 2009 -0600"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Fri Jun 12 22:16:35 2009 +0930"
      },
      "message": "virtio: fix obsolete documentation on probe function\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "c45a6816c19dee67b8f725e6646d428901a6dc24",
      "tree": "096e3263fd14e140685bcc3082394ff15f5aeddb",
      "parents": [
        "72e61eb40b55dd57031ec5971e810649f82b0259"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Fri May 02 21:50:50 2008 -0500"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Fri May 02 21:50:50 2008 +1000"
      },
      "message": "virtio: explicit advertisement of driver features\n\nA recent proposed feature addition to the virtio block driver revealed\nsome flaws in the API: in particular, we assume that feature\nnegotiation is complete once a driver\u0027s probe function returns.\n\nThere is nothing in the API to require this, however, and even I\ndidn\u0027t notice when it was violated.\n\nSo instead, we require the driver to specify what features it supports\nin a table, we can then move the feature negotiation into the virtio\ncore.  The intersection of device and driver features are presented in\na new \u0027features\u0027 bitmap in the struct virtio_device.\n\nNote that this highlights the difference between Linux unsigned-long\nbitmaps where each unsigned long is in native endian, and a\nstraight-forward little-endian array of bytes.\n\nDrivers can still remove feature bits in their probe routine if they\nreally have to.\n\nAPI changes:\n- dev-\u003econfig-\u003efeature() no longer gets and acks a feature.\n- drivers should advertise their features in the \u0027feature_table\u0027 field\n- use virtio_has_feature() for extra sanity when checking feature bits\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "2557a933b795c1988c721ebb871cd735128bb9cb",
      "tree": "96581bd5acac44bbe0399aa445197509d9ae60ff",
      "parents": [
        "4cac04dd63fa3b202ee313ed1afbbd135ab887ee"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon Apr 07 14:30:28 2008 +1000"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Apr 07 13:14:22 2008 -0700"
      },
      "message": "virtio: remove overzealous BUG_ON.\n\nThe \u0027disable_cb\u0027 callback is designed as an optimization to tell the host\nwe don\u0027t need callbacks now.  As it is not reliable, the debug check is\noverzealous: it can happen on two CPUs at the same time.  Document this.\n\nEven if it were reliable, the virtio_net driver doesn\u0027t disable\ncallbacks on transmit so the START_USE/END_USE debugging reentrance\nprotection can be easily tripped even on UP.\n\nThanks to Balaji Rao for the bug report and testing.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCC: Balaji Rao \u003cbalajirrao@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "4265f161b6bb7b31163671329b1142b9023bf4e3",
      "tree": "1494768aaf38407ca8f1336f6ae80301b27135bb",
      "parents": [
        "da74e89d40995600b3b07ac500084920247687ce"
      ],
      "author": {
        "name": "Christian Borntraeger",
        "email": "borntraeger@de.ibm.com",
        "time": "Fri Mar 14 14:17:05 2008 +0100"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon Mar 17 22:58:21 2008 +1100"
      },
      "message": "virtio: fix race in enable_cb\n\nThere is a race in virtio_net, dealing with disabling/enabling the callback.\nI saw the following oops:\n\nkernel BUG at /space/kvm/drivers/virtio/virtio_ring.c:218!\nillegal operation: 0001 [#1] SMP\nModules linked in: sunrpc dm_mod\nCPU: 2 Not tainted 2.6.25-rc1zlive-host-10623-gd358142-dirty #99\nProcess swapper (pid: 0, task: 000000000f85a610, ksp: 000000000f873c60)\nKrnl PSW : 0404300180000000 00000000002b81a6 (vring_disable_cb+0x16/0x20)\n           R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:0 CC:3 PM:0 EA:3\nKrnl GPRS: 0000000000000001 0000000000000001 0000000010005800 0000000000000001\n           000000000f3a0900 000000000f85a610 0000000000000000 0000000000000000\n           0000000000000000 000000000f870000 0000000000000000 0000000000001237\n           000000000f3a0920 000000000010ff74 00000000002846f6 000000000fa0bcd8\nKrnl Code: 00000000002b819a: a7110001           tmll    %r1,1\n           00000000002b819e: a7840004           brc     8,2b81a6\n           00000000002b81a2: a7f40001           brc     15,2b81a4\n          \u003e00000000002b81a6: a51b0001           oill    %r1,1\n           00000000002b81aa: 40102000           sth     %r1,0(%r2)\n           00000000002b81ae: 07fe               bcr     15,%r14\n           00000000002b81b0: eb7ff0380024       stmg    %r7,%r15,56(%r15)\n           00000000002b81b6: a7f13e00           tmll    %r15,15872\nCall Trace:\n([\u003c000000000fa0bcd0\u003e] 0xfa0bcd0)\n [\u003c00000000002b8350\u003e] vring_interrupt+0x5c/0x6c\n [\u003c000000000010ab08\u003e] do_extint+0xb8/0xf0\n [\u003c0000000000110716\u003e] ext_no_vtime+0x16/0x1a\n [\u003c0000000000107e72\u003e] cpu_idle+0x1c2/0x1e0\n\nThe problem can be triggered with a high amount of host-\u003eguest traffic.\nI think its the following race:\n\npoll says netif_rx_complete\npoll calls enable_cb\nenable_cb opens the interrupt mask\na new packet comes, an interrupt is triggered----\\\nenable_cb sees that there is more work           |\nenable_cb disables the interrupt                 |\n       .                                         V\n       .                            interrupt is delivered\n       .                            skb_recv_done does atomic napi test, ok\n some waiting                       disable_cb is called-\u003echeck fails-\u003ebang!\n       .\npoll would do napi check\npoll would do disable_cb\n\nThe fix is to let enable_cb not disable the interrupt again, but expect the\ncaller to do the cleanup if it returns false. In that case, the interrupt is\nonly disabled, if the napi test_set_bit was successful.\n\nSigned-off-by: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e (cleaned up doco)\n"
    },
    {
      "commit": "6e5aa7efb27aec7e55b6463fa2c8db594c4226fa",
      "tree": "060a955e711ac224136157a5410e88dcdab965af",
      "parents": [
        "b3369c1fb410fddeb38a404316c861395f6d6ae8"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon Feb 04 23:50:03 2008 -0500"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon Feb 04 23:50:03 2008 +1100"
      },
      "message": "virtio: reset function\n\nA reset function solves three problems:\n\n1) It allows us to renegotiate features, eg. if we want to upgrade a\n   guest driver without rebooting the guest.\n\n2) It gives us a clean way of shutting down virtqueues: after a reset,\n   we know that the buffers won\u0027t be used by the host, and\n\n3) It helps the guest recover from messed-up drivers.\n\nSo we remove the -\u003eshutdown hook, and the only way we now remove\nfeature bits is via reset.\n\nWe leave it to the driver to do the reset before it deletes queues:\nthe balloon driver, for example, needs to chat to the host in its\nremove function.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "f957d1f05a1a20bc3b954877c6562a4d53d58bde",
      "tree": "4eb230a96bb15b74050005f40a7ec383e26d13ad",
      "parents": [
        "18445c4d501b9ab4336f66ef46b092661ddaf336"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon Feb 04 23:49:58 2008 -0500"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon Feb 04 23:49:59 2008 +1100"
      },
      "message": "virtio: configuration change callback\n\nVarious drivers want to know when their configuration information\nchanges: the balloon driver is the immediate user, but the network\ndriver may one day have a \"carrier\" status as well.\n\nThis introduces that callback (lguest doesn\u0027t use it yet).\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "18445c4d501b9ab4336f66ef46b092661ddaf336",
      "tree": "9d23185f207d912942890cf047d1d3200806b401",
      "parents": [
        "a586d4f6016f7139d8c26df0e6927131168d3b5b"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon Feb 04 23:49:57 2008 -0500"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon Feb 04 23:49:58 2008 +1100"
      },
      "message": "virtio: explicit enable_cb/disable_cb rather than callback return.\n\nIt seems that virtio_net wants to disable callbacks (interrupts) before\ncalling netif_rx_schedule(), so we can\u0027t use the return value to do so.\n\nRename \"restart\" to \"cb_enable\" and introduce \"cb_disable\" hook: callback\nnow returns void, rather than a boolean.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n"
    },
    {
      "commit": "ec3d41c4db4c21164332826ea8d812f94f2f6886",
      "tree": "9b947e900745cfcc4df7409c6ba5583428964215",
      "parents": [
        "47436aa4ad054c1c7c8231618e86ebd9305308dc"
      ],
      "author": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Mon Oct 22 11:03:36 2007 +1000"
      },
      "committer": {
        "name": "Rusty Russell",
        "email": "rusty@rustcorp.com.au",
        "time": "Tue Oct 23 15:49:54 2007 +1000"
      },
      "message": "Virtio interface\n\nThis attempts to implement a \"virtual I/O\" layer which should allow\ncommon drivers to be efficiently used across most virtual I/O\nmechanisms.  It will no-doubt need further enhancement.\n\nThe virtio drivers add buffers to virtio queues; as the buffers are consumed\nthe driver \"interrupt\" callbacks are invoked.\n\nThere is also a generic implementation of config space which drivers can query\nto get setup information from the host.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Dor Laor \u003cdor.laor@qumranet.com\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\n"
    }
  ]
}