user/sven/linux.git/include/linux/vringh.h, branch v5.4.114

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30T18:26:35Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman

virtio: add explicit big-endian support to memory accessors

2015-06-01T13:48:54Z

The current memory accessors logic is: - little endian if little_endian - native endian (i.e. no byteswap) if !little_endian If we want to fully support cross-endian vhost, we also need to be able to convert to big endian. Instead of changing the little_endian argument to some 3-value enum, this patch changes the logic to: - little endian if little_endian - big endian if !little_endian The native endian case is handled by all users with a trivial helper. This patch doesn't change any functionality, nor it does add overhead. Signed-off-by: Greg Kurz Signed-off-by: Michael S. Tsirkin Reviewed-by: Cornelia Huck Reviewed-by: David Gibson

vringh: introduce vringh_is_little_endian() helper

2015-06-01T13:48:52Z

Signed-off-by: Greg Kurz Signed-off-by: Michael S. Tsirkin Acked-by: Cornelia Huck Reviewed-by: David Gibson

vringh: update for virtio 1.0 APIs

2014-12-15T21:49:28Z

When switching everything over to virtio 1.0 memory access APIs, I missed converting vringh. Fortunately, it's straight-forward. Signed-off-by: Michael S. Tsirkin

vringh: 64 bit features

2014-12-15T21:49:23Z

Pass u64 everywhere. Signed-off-by: Michael S. Tsirkin

virtio: Introduce vringh wrappers in virtio_config

2013-03-20T03:36:05Z

Add wrappers for the host vrings to support loose coupling between the virtio device and driver. A new struct vringh_config_ops with the functions find_vrhs() and del_vrhs() is added to the virtio_device struct. This enables virtio drivers to manage virtio host rings without detailed knowledge of how the vrings are created and deleted. The function vringh_notify() is added so vringh clients can notify the other side that buffers are added to the used-ring. Cc: Ohad Ben-Cohen Signed-off-by: Sjur Brændeland Signed-off-by: Rusty Russell (constified vringh_config)

vringh: host-side implementation of virtio rings.

2013-03-20T03:35:33Z

Getting use of virtio rings correct is tricky, and a recent patch saw an implementation of in-kernel rings (as separate from userspace). This abstracts the business of dealing with the virtio ring layout from the access (userspace or direct); to do this, we use function pointers, which gcc inlines correctly. Signed-off-by: Rusty Russell Acked-by: Michael S. Tsirkin