src/sys/dev/virtio/random, branch release/14.3.0

virtio_random: Pipeline fetching the data

2023-10-11T15:10:32Z

Queue an initial fetch of data during attach and after every read rather than synchronously fetching data and polling for completion. If data has not been returned from an previous fetch during read, just return EAGAIN rather than blocking. Co-authored-by: John Baldwin Reviewed by: markj Differential Revision: https://reviews.freebsd.org/D41656 (cherry picked from commit f1c5a2e3a625053e2b70d5b1777d849a4d9328f2)

sys: Remove $FreeBSD$: one-line .c pattern

2023-08-16T17:54:36Z

Remove /^[\s*]*__FBSDID$"\$FreeBSD\$"$;?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

2023-05-12T16:44:03Z

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix

virtio: Remove unused devclass arguments to DRIVER_MODULE.

2022-05-06T22:46:57Z

virtio_random(8): avoid deadlock at shutdown time

2022-03-16T04:41:51Z

FreeBSD 13+ running as virtual guest may load virtio_random(8) driver by means of devd(8) unless the driver is blacklisted or disabled via device.hints(5). Currently, the driver may prevent the system from rebooting or shutting down correctly. This change deactivates virtio_random at very late stage during system shutdown sequence to avoid deadlock that results in kernel hang. PR: 253175 Tested by: tom MFC after: 3 days

virtio: Reduce boilerplate for device driver module definitions

2021-01-21T01:07:23Z

Rather than have every device register itself for both virtio_pci and virtio_mmio, provide a VIRTIO_DRIVER_MODULE wrapper to declare both, merge VIRTIO_SIMPLE_PNPTABLE with VIRTIO_SIMPLE_PNPINFO and make the latter register for both buses. This also has the benefit of abstracting away the available transports and their names. Reviewed by: bryanv Differential Revision: https://reviews.freebsd.org/D28073

virtio: Handle possible failure of virtio_finalize_features()

2021-01-19T04:55:26Z

Try to standardize how drivers negotiate feature and the function names Reviewed by: grehan (mentor) Differential Revision: https://reviews.freebsd.org/D27930

virtio_random: Add modern (V1) support

2021-01-19T04:55:23Z

Reviewed by: grehan (mentor) Differential Revision: https://reviews.freebsd.org/D27899

virtio: Support MMIO bus for all devices

2020-05-06T23:31:30Z

The bus is independent of the device, so all devices can be attached to either a PCI bus or an MMIO bus. For example, QEMU's virtio-rng-device gives the MMIO variant of virtio-rng-pci, and is now detected. Reviewed by: andrew, br, brooks (mentor) Approved by: andrew, br, brooks (mentor) Differential Revision: https://reviews.freebsd.org/D24730

virtio_random(4): Drop no longer needed unload kludge

2019-12-30T01:40:59Z

After r356194, source deregistration no longer races with concurrent use. Reviewed by: bryanv, markm Differential Revision: https://reviews.freebsd.org/D22490