Liming Sun 2d6168fa6b platform/mellanox: mlxbf-tmfifo: Fix a memory barrier issue ... [ Upstream commit 1c0e5701c5 ] The virtio framework uses wmb() when updating avail->idx. It guarantees the write order, but not necessarily loading order for the code accessing the memory. This commit adds a load barrier after reading the avail->idx to make sure all the data in the descriptor is visible. It also adds a barrier when returning the packet to virtio framework to make sure read/writes are visible to the virtio code. Fixes: 1357dfd726 ("platform/mellanox: Add TmFifo driver for Mellanox BlueField Soc") Signed-off-by: Liming Sun <limings@nvidia.com> Reviewed-by: Vadim Pasternak <vadimp@nvidia.com> Link: https://lore.kernel.org/r/1620433812-17911-1-git-send-email-limings@nvidia.com Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-05-26 12:06:49 +02:00
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Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	platform/mellanox: Add bootctl driver for Mellanox BlueField Soc	2019-10-15 10:55:10 +03:00
mlxbf-bootctl.c	platform/mellanox: fix the mlx-bootctl sysfs	2019-12-20 19:00:50 +02:00
mlxbf-bootctl.h	platform/mellanox: Add bootctl driver for Mellanox BlueField Soc	2019-10-15 10:55:10 +03:00
mlxbf-tmfifo-regs.h	platform/mellanox: Add TmFifo driver for Mellanox BlueField Soc	2019-05-06 17:54:42 +03:00
mlxbf-tmfifo.c	platform/mellanox: mlxbf-tmfifo: Fix a memory barrier issue	2021-05-26 12:06:49 +02:00
mlxreg-hotplug.c	platform/mellanox: mlxreg-hotplug: Add environmental data to uevent	2020-07-15 12:45:07 +03:00
mlxreg-io.c	platform/mellanox: mlxreg-io: Add support for complex attributes	2020-07-15 12:45:07 +03:00