The branch stable/14 has been updated by tuexen: URL: https://cgit.FreeBSD.org/src/commit/?id=226cfd057e205cb5e3ef23e97271e2189e6c40e0
commit 226cfd057e205cb5e3ef23e97271e2189e6c40e0 Author: Michael Tuexen <tue...@freebsd.org> AuthorDate: 2025-07-29 07:17:52 +0000 Commit: Michael Tuexen <tue...@freebsd.org> CommitDate: 2025-09-05 18:42:20 +0000 vtnet.4: update description of loader tunables This is based on the description of sysctl -d. Reviewed by: Timo Völker, bcr Differential Revision: https://reviews.freebsd.org/D51604 (cherry picked from commit 0ded4647215cffde9076ab4e82870b0f491bd0b2) --- share/man/man4/vtnet.4 | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/share/man/man4/vtnet.4 b/share/man/man4/vtnet.4 index e45a47ff6c87..7f5186ef4165 100644 --- a/share/man/man4/vtnet.4 +++ b/share/man/man4/vtnet.4 @@ -22,7 +22,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd January 22, 2012 +.Dd July 29, 2025 .Dt VTNET 4 .Os .Sh NAME @@ -70,6 +70,11 @@ prompt before booting the kernel or stored in .It Va hw.vtnet. Ns Ar X Ns Va .csum_disable This tunable disables receive and send checksum offload. The default value is 0. +.It Va hw.vtnet.fixup_needs_csum +.It Va hw.vtnet. Ns Ar X Ns Va .fixup_needs_csum +This tunable enforces the calculation of a valid checksum for NEEDS_CSUM +packets. +The default value is 0. .It Va hw.vtnet.tso_disable .It Va hw.vtnet. Ns Ar X Ns Va .tso_disable This tunable disables TSO. @@ -91,6 +96,22 @@ The number of queue pairs used is the lesser of the maximum supported by the driver and the hypervisor, the number of CPUs present in the guest, and this tunable if not zero. The default value is 0. +.It Va hw.vtnet.tso_maxlen +.It Va hw.vtnet. Ns Ar X Ns Va .tso_maxlen +This tunable sets the TSO burst limit. +The default value is 65535. +.It Va hw.vtnet.rx_process_limit +.It Va hw.vtnet. Ns Ar X Ns Va .rx_process_limit +This tunable sets the number of RX segments processed in one pass. +The default value is 1024. +.It Va hw.vtnet.lro_entry_count +.It Va hw.vtnet. Ns Ar X Ns Va .lro_entry_count +This tunable sets the software LRO entry count. +The default value is 128, the minimum value is 8. +.It Va hw.vtnet.lro_mbufq_depth +.It Va hw.vtnet. Ns Ar X Ns Va .lro_mbufq_depth +This tunable sets the depth of the software LRO mbuf queue. +The default value is 0. .El .Sh SEE ALSO .Xr arp 4 ,