src/sys/dev/virtio/network, branch release/9.3.0

MFC r255111, r255112, r255131, r255167, r256066, r261150, r261151,

2014-05-07T03:17:21Z

r261164, r261166, r261167, r261168, r261394, r261395: This updates the network driver to support multiple queues, and several bug fixes. Note that multiqueue support is not compiled in by default since that would change ALTQ behavior. - Sync VirtIO net device header file from recent Linux - Import multiqueue VirtIO net driver - Fix build with gcc - Do not hold the vtnet Rx queue lock when calling up into the stack - Read and write the MAC address in the config space byte by byte - Also include the mbuf's csum_flags in an assert message - Remove stray space - Move duplicated transmit start code into a single function - Avoid queue unlock followed by relock when the enable interrupt race is lost - Check for a full virtqueue in the multiqueue transmit path - Do not place the sglist used for Rx/Tx on the stack - Use m_defrag() instead of m_collapse() to compact a long mbuf chain

MFC VirtIO r252702,r252703,r252704,r252706,r252707,r252708,r252709

2013-07-10T04:51:07Z

This brings in several bug fixes and better conformance with various aspects of the spec that have changed. r252702: Convert VirtIO to use ithreads instead of taskqueues r252703: Block driver bug fixes and spec changes r252704: Balloon driver improvements r252706: Minor network driver improvements r252707: Minor misc VirtIO changes r252708: PCI driver bug fixes and cleanup r252709: Fix SCSI driver lock not owned panic

MFC r251796

2013-06-25T04:42:16Z

Fix setting of the Rx filters QEMU 1.4 made the descriptor requirement stricter - the size of buffer descriptor must exactly match the number of MAC addresses provided.

MFC: r243857 (partial)

2013-03-09T00:39:54Z

Mechanically substitute flags from historic mbuf allocator with malloc(9) flags in sys/dev.

MFC r238072,r238360,r240430,r241469,r241470,r241495,r244136,r244200

2013-02-09T06:11:45Z

Sync VirtIO with HEAD. - r238072: Do not include in the local headers. - r238360: Various VirtIO improvements - r240430: No need to leak these into the includer's namespace. - r241469: virtqueue: Fix non-indirect virtqueues - r241470: Add Virtio SCSI driver - r241495: Fix build with PAE enabled - r244136: Remove duplicated lines - r244200: Start taskqueues threads after attach cannot fail Approved by: grehan (mentor)

MFC r227652, r228301, r234270, r234349

2012-08-21T00:03:04Z

Sync Bryan Venteicher's virtio base, PCI front-end, and net/block/balloon drivers from HEAD.