| commit | 11447b5977451cf8571f2d8f5f6b8e06a960584c | |
| author | Venkatesh Srinivas <vsrinivas@ops101.org> | |
| Mon, 24 Dec 2012 18:41:27 +0000 (24 13:41 -0500) | ||
| committer | Sascha Wildner <saw@online.de> | |
| Sun, 6 Jan 2013 22:13:55 +0000 (6 23:13 +0100) | ||
| tree | c4157cf209777596ef4e6d909125a612228ae5d7 | treesnapshot (tar.gz zip) |
| parent | 42fdf81ee882d38808efe2772a68a9c4991a5f76 | commitdiff |
kernel -- Import virtio & virtio-block drivers.
virtio-blk provides a paravirtualized storage controller, with one
disk per virtio device.
This driver is based on Tim Bisson's port of FreeBSD's virtio and
virtio-blk devices. Differences from Tim's port:
* Import all FreeBSD updates from 4/16 on.
* Remove indirect descriptor support from virtio device.
* Mark devices as D_MPSAFE; removes mplock around disk routines, they
are all correctly self-synchronized.
* Implement devstat support.
* Move I/O completion routine to threaded taskqueue.
* Do not hold target spinlock around virtqueue notify.
* Move objcache caches to kmalloc.
virtio-blk provides a paravirtualized storage controller, with one
disk per virtio device.
This driver is based on Tim Bisson's port of FreeBSD's virtio and
virtio-blk devices. Differences from Tim's port:
* Import all FreeBSD updates from 4/16 on.
* Remove indirect descriptor support from virtio device.
* Mark devices as D_MPSAFE; removes mplock around disk routines, they
are all correctly self-synchronized.
* Implement devstat support.
* Move I/O completion routine to threaded taskqueue.
* Do not hold target spinlock around virtqueue notify.
* Move objcache caches to kmalloc.
18 files changed: