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285830 |
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23-Jul-2015 |
gjb |
- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1 builds. - Update newvers.sh to reflect RC1. - Update __FreeBSD_version to reflect 10.2. - Update default pkg(8) configuration to use the quarterly branch.[1]
Discussed with: re, portmgr [1] Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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270270 |
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21-Aug-2014 |
bryanv |
MFC r268480:
Add accessor to get the number of free descriptors in the virtqueue
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268010 |
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29-Jun-2014 |
bryanv |
MFC r267520, r267521, r267522, r267523, r267524:
- Remove two write-only local variables - Remove unused element in the vtnet_rxq structure - Remove kernel specific macro out of the VirtIO PCI header file - Move the VIRTIO_RING_F_* defines out of virtqueue.h into virtio_config.h - Make the feature negotiation code easier to follow - Force two byte alignment for all control message headers
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256281 |
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10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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255109 |
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01-Sep-2013 |
bryanv |
Add support for postponing VirtIO virtqueue interrupts
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.
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252707 |
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04-Jul-2013 |
bryanv |
Merge virtio changes from projects/virtio
Contains projects/virtio commits:
r245738: virtio: Minor man page tweaks r246060: virtio: Cleanup feature description printing r246306: virtio: Remove old debugging flag r247238: virtio: Remove PRIx64 macros from format strings r247239: virtio: Constify some fields r247240: virtio: Minor code simplifications r249962: virtio: Update to my freebsd.org email address
MFC after: 1 month
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252702 |
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04-Jul-2013 |
bryanv |
Convert VirtIO to use ithreads instead of taskqueues
Contains projects/virtio commits:
r245709: Each VirtIO device was scheduling its own taskqueue(9) to do the off-level interrupt handling. ithreads(9) is the more nature way to do this. The primary motivation for this work to better support network multiqueue. r245710: virtio: Change virtqueue intr handlers to return void r245711: virtio_blk: Remove interrupt taskqueue r245721: vtnet: Remove interrupt taskqueue r245722: virtio_scsi: Remove interrupt taskqueue r245747: vtnet: Remove taskqueue fields missed in r245721
MFC after: 1 month
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238360 |
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11-Jul-2012 |
grehan |
Various VirtIO improvements
PCI: - Properly handle interrupt fallback from MSIX to MSI to legacy. The host may not have sufficient resources to support MSIX, so we must be able to fallback to legacy interrupts. - Add interface to get the (sub) vendor and device IDs. - Rename flags to VTPCI_FLAG_* like other VirtIO drivers. Block: - No longer allocate vtblk_requests from separate UMA zone. malloc(9) from M_DEVBUF is sufficient. Assert segment counts at allocation. - More verbose error and debug messages. Network: - Remove stray write once variable. Virtqueue: - Shuffle code around in preparation of converting the mb()s to the appropriate atomic(9) operations. - Only walk the descriptor chain when freeing if INVARIANTS is defined since the result is only KASSERT()ed.
Submitted by: Bryan Venteicher (bryanv@daemoninthecloset.org)
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238072 |
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03-Jul-2012 |
obrien |
Do not include <sys/types.h> in the local headers. The .c files including them have already included <sys/param.h> before these headers are included.
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234270 |
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14-Apr-2012 |
grehan |
Catch up with Bryan Venteicher's virtio git repo:
a8af6270bd96be6ccd86f70b60fa6512b710e4f0 virtio_blk: Include function name in panic string
cbdb03a694b76c5253d7ae3a59b9995b9afbb67a virtio_balloon: Do the notify outside of the lock
By the time we return from virtqueue_notify(), the descriptor will be in the used ring so we shouldn't have to sleep.
10ba392e60692529a5cbc1e9987e4064e0128447 virtio: Use DEVMETHOD_END
80cbcc4d6552cac758be67f0c99c36f23ce62110 virtqueue: Add support for VIRTIO_F_RING_EVENT_IDX
This can be used to reduce the number of guest/host and host/guest interrupts by delaying the interrupt until a certain index value is reached.
Actual use by the network driver will come along later.
8fc465969acc0c58477153e4c3530390db436c02 virtqueue: Simplify virtqueue_nused()
Since the values just wrap naturally at UINT16_MAX, we can just subtract the two values directly, rather than doing 2's complement math.
a8aa22f25959e2767d006cd621b69050e7ffb0ae virtio_blk: Remove debugging crud from 75dd732a
There seems to be an issue with Qemu (or FreeBSD VirtIO) that sets the PCI register space for the device config to bogus values. This only seems to happen after unloading and reloading the module.
d404800661cb2a9769c033f8a50b2133934501aa virtio_blk: Use better variable name
75dd732a97743d96e7c63f7ced3c2169696dadd3 virtio_blk: Partially revert 92ba40e65
Just use the virtqueue to determine if any requests are still inflight.
06661ed66b7a9efaea240f99f414c368f1bbcdc7 virtio_blk: error if allowed too few segments
Should never happen unless the host provides use with a bogus seg_max value.
4b33e5085bc87a818433d7e664a0a2c8f56a1a89 virtio_blk: Sort function declarations
426b9f5cac892c9c64cc7631966461514f7e08c6 virtio_blk: Cleanup whitespace
617c23e12c61e3c2233d942db713c6b8ff0bd112 virtio_blk: Call disk_err() on error'd completed requests
081a5712d4b2e0abf273be4d26affcf3870263a9 virtio_blk: ASSERT the ready and inflight request queues are empty
a9be2631a4f770a84145c18ee03a3f103bed4ca8 virtio_blk: Simplify check for too many segments
At the cost of a small style violation.
e00ec09da014f2e60cc75542d0ab78898672d521 virtio_blk: Add beginnings of suspend/resume
Still not sure if we need to virtio_stop()/virtio_reinit() the device before/after a suspend.
Don't start additional IO when marked as suspending.
47c71dc6ce8c238aa59ce8afd4bda5aa294bc884 virtio_blk: Panic when dealt an unhandled BIO cmd
1055544f90fb8c0cc6a2395f5b6104039606aafe virtio_blk: Add VQ enqueue/dequeue wrappers
Wrapper functions managed the added/removing to the in-flight list of requests.
Normally biodone() any completed IO when draining the virtqueue.
92ba40e65b3bb5e4acb9300ece711f1ea8f3f7f4 virtio_blk: Add in-flight list of requests
74f6d260e075443544522c0833dc2712dd93f49b virtio_blk: Rename VTBLK_FLAG_DETACHING to VTBLK_FLAG_DETACH
7aa549050f6fc6551c09c6362ed6b2a0728956ef virtio_blk: Finish all BIOs through vtblk_finish_bio()
Also properly set bio_resid in the case of errors. Most geom_disk providers seem to do the same.
9eef6d0e6f7e5dd362f71ba097f2e2e4c3744882 Added function to translate VirtIO status to error code
ef06adc337f31e1129d6d5f26de6d8d1be27bcd2 Reset dumping flag when given unexpected parameters
393b3e390c644193a2e392220dcc6a6c50b212d9 Added missing VTBLK_LOCK() in dump handler
Obtained from: Bryan Venteicher bryanv at daemoninthecloset dot org
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227652 |
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18-Nov-2011 |
grehan |
Import virtio base, PCI front-end, and net/block/balloon drivers. Tested on Qemu/KVM, VirtualBox, and BHyVe.
Currently built as modules-only on i386/amd64. Man pages not yet hooked up, pending review.
Submitted by: Bryan Venteicher bryanv at daemoninthecloset dot org Reviewed by: bz MFC after: 4 weeks or so
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