src/sys/dev/virtio/network, branch mainFreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=main2026-05-05T09:18:14ZRevert "virtio_net: Use bus_dma for rxq/txq buffers"2026-05-05T09:18:14ZAndrew Turnerandrew@FreeBSD.org2026-05-05T09:17:51Zurn:sha1:dc00f118405e8638ceb13b288e14164a8a9ba669
This reverts commit c16c95192f01237a876eb7bc336e3bbda9310171.
Revert until we can fix reported issues
Revert "virtio_net: Use bus_dma for command/ack buffers"2026-05-05T09:18:14ZAndrew Turnerandrew@FreeBSD.org2026-05-05T09:16:23Zurn:sha1:c8167ebb742c36cb1fc32cc543afb4016b4fc174
This reverts commit b5bad6df467cc95bea641afe674c55cd5b9f1510.
Revert until we can fix reported issues
virtio_net: Use bus_dma for command/ack buffers2026-04-27T11:37:53ZSarah Walkersarah.walker2@arm.com2026-02-27T14:17:15Zurn:sha1:b5bad6df467cc95bea641afe674c55cd5b9f1510
While the majority of virtio platforms will be fully coherent, some may
require cache maintenance or other specific device memory handling (eg for
secure partitioning). Using bus_dma allows for these usecases.
The virtio buffers are marked as coherent; this should ensure that sync
calls are no-ops in the common cases.
Reviewed by: andrew
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D55564
virtio_net: Use bus_dma for rxq/txq buffers2026-04-27T11:37:53ZSarah Walkersarah.walker2@arm.com2026-02-16T14:19:13Zurn:sha1:c16c95192f01237a876eb7bc336e3bbda9310171
While the majority of virtio platforms will be fully coherent, some may
require cache maintenance or other specific device memory handling (eg for
secure partitioning). Using bus_dma allows for these usecases.
The virtio buffers are marked as coherent; this should ensure that sync
calls are no-ops in the common cases.
Reviewed by: andrew
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D55492
vtnet: remove loader tunable fixup_needs_csum2026-04-26T09:42:38ZTimo Völkertimo.voelker@fh-muenster.de2026-04-26T09:42:38Zurn:sha1:1bfd392b9e4dcddef3d80efaa517fafa648cd0b1
Removes the deprecated loader tunable fixup_needs_csum. Removes also
the sysctl counter rx_csum_bad_offset that is no longer in use.
Reviewed by: tuexen
Event: Wiesbaden Hackathon 2026
Differential Revision: https://reviews.freebsd.org/D55588
vtnet: remove M_HASHTYPE when there is only one pair of rx/tx queue2026-01-28T21:46:07ZCheng Cuicc@FreeBSD.org2026-01-28T17:27:34Zurn:sha1:20285cad7a55ecd0020f51f3daee74db8b1ea5a0
Summary:
Doing so will let the upper layer know how to deal with software hash,
with benefits like inp_flowid can be set and m_pkthdr.flowid can be set
in output path.
Reviewed by: tuexen
Differential Revision: https://reviews.freebsd.org/D54929
vtnet: improve consistency2025-12-19T16:44:20ZMichael Tuexentuexen@FreeBSD.org2025-12-19T16:44:20Zurn:sha1:8da838ac31692e381adfc63d83ea49f2adabbf23
Use sbuf_new_for_sysctl() instead of sbuf_new_auto() when exposing
the flags via sysctl.
MFC after: 1 week
vtnet: expose features via sysctl tree2025-12-19T16:38:35ZMichael Tuexentuexen@FreeBSD.org2025-12-19T16:38:35Zurn:sha1:634d9c0d111b630c3d63a1cf25d15c32a37afab8
Right now the 64-bit flags field needs to be casted to a 32-bit field,
because clang warns if more than 32-bits are used.
Once clang is fixed, this restriction will be removed and more bits
will be added.
Reviewed by: markj, Timo Völker
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D54288
vtnet: expose flags via sysctl tree2025-12-18T14:42:13ZMichael Tuexentuexen@FreeBSD.org2025-12-18T14:42:13Zurn:sha1:e3a0571ad74d8429a95fcae9efc1d91cc109a337
Provide the flags used for a vtnet interface via the sysctl tree.
This is mostly used for debugging purposes.
Reviewed by: Timo Völker
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D54283
vtnet: define flags in a consistent way2025-12-18T12:41:29ZMichael Tuexentuexen@FreeBSD.org2025-12-18T12:41:29Zurn:sha1:e0c6c4ecfc755b78ac9135033053d2f15c62bf04
This allows adding flags in the upper 32 bits in a consistent way.
No functional change intended.
MFC after: 1 week