src/sys/dev/virtio/virtqueue.c, branch release/12.3.0FreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=release%2F12.3.02018-02-19T19:31:18ZAdd more virtqueue getter methods2018-02-19T19:31:18ZBryan Venteicherbryanv@FreeBSD.org2018-02-19T19:31:18Zurn:sha1:88126356cf1a673a94b931fad404398bcf156f85
MFC after: 2 weeks
sys/dev: further adoption of SPDX licensing ID tags.2017-11-27T14:52:40ZPedro F. Giffunipfg@FreeBSD.org2017-11-27T14:52:40Zurn:sha1:718cf2ccb9956613756ab15d7a0e28f2c8e91cab
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Add virtio bus 'poll' method allowing us to inform backend we are2014-12-12T11:19:10ZRuslan Bukinbr@FreeBSD.org2014-12-12T11:19:10Zurn:sha1:156b97fa1f4366966b8cb50be6e720a58e50e959
going to poll virtqueue.
Use on BERI soft-core to invalidate cpu caches.
Reviewed by: bryanv
Sponsored by: DARPA, AFRL
print additional debugging info in virtqueue_dump()2014-08-16T13:13:17ZLuigi Rizzoluigi@FreeBSD.org2014-08-16T13:13:17Zurn:sha1:a5b6123ea9425ac4094aa6c2a176c1d436543e5e
(not fundamental, but useful to debug performance issues on vtnet)
MFC after: 3 days
Add accessor to get the number of free descriptors in the virtqueue2014-07-10T05:26:01ZBryan Venteicherbryanv@FreeBSD.org2014-07-10T05:26:01Zurn:sha1:4b59668f0ecb8a151c1e34082ad133121a8482c3
MFC after: 1 month
Move the VIRTIO_RING_F_* defines out of virtqueue.h into virtio_config.h2014-06-16T04:25:04ZBryan Venteicherbryanv@FreeBSD.org2014-06-16T04:25:04Zurn:sha1:45543f07511f5db961ca8653527b900e32b40092
These defines are applicable to userland too, but virtqueue.h contains
the kernel virtqueue interface, and is therefore not usable in userland.
Note that Linux places these defines in virtio_ring.h, but I don't want
the drivers including this header file to keep the VirtIO ring opaque to
everything but the virtqueue.
MFC after: 1 week
Split the virtio.h header file into multiple files2014-06-01T18:16:01ZBryan Venteicherbryanv@FreeBSD.org2014-06-01T18:16:01Zurn:sha1:9a732166964f5f962e8ab2f5a3b6c14c3e9a74dd
Reorganize the previous contexts of the file as it is in Linux. The
eventual goal is to install the header files and share them between
the kernel and bhyve.
MFC after: 1 week
Fix unintended compiler constant folding2013-09-03T02:26:57ZBryan Venteicherbryanv@FreeBSD.org2013-09-03T02:26:57Zurn:sha1:4142b1cbe57b3bc3ec3e47dadc1d8cc7b02f2dc2
Pointed out by: dim@
Add support for postponing VirtIO virtqueue interrupts2013-09-01T04:16:43ZBryan Venteicherbryanv@FreeBSD.org2013-09-01T04:16:43Zurn:sha1:b619f40aec70cb1128b3576a57e5c118173f89ed
Partial support for the EVENT_IDX feature was added a while ago,
but this commit adds an interface for the device driver to hint
how long (in terms of descriptors) the next interrupt should be
delayed.
The first user of this will be used to reduce VirtIO net's Tx
completion interrupts.
Merge virtio_pci changes from projects/virtio2013-07-04T17:59:09ZBryan Venteicherbryanv@FreeBSD.org2013-07-04T17:59:09Zurn:sha1:62a69c4153bf281228a65264efa51fb108b436f7
This commit is primarily a significant cleanup to the interrupt
allocation code that had gotten a bit jumbled from having to
support per-vq MSIX, shared MSIX, MSI, and legacy style interrupts.
Contains projects/virtio commits:
r246064:
virtio_pci: Rewrite allocation of interrupts
r246065:
virtio_pci: Remove spaces before a tab
r246066:
virtio_pci: Dynamically allocate the virtqueue array
r246304:
virtio_pci: Clean up after failed virtqueue alloc attempt
r246305:
virtio_pci: Move no interrupt check into the PCI interrupt handlers
r246308:
virtio_pci: Remove unused variable
MFC after: 1 month