igc: sysctl for TCP flag handling during TSO

Add tso_tcp_flags_mask_first_segment, tso_tcp_flags_mask_middle_segment,
and tso_tcp_flags_mask_last_segment sysctl-variables to control the
handling of

igc: sysctl for TCP flag handling during TSO

Add tso_tcp_flags_mask_first_segment, tso_tcp_flags_mask_middle_segment,
and tso_tcp_flags_mask_last_segment sysctl-variables to control the
handling of TCP flags during TSO.

This allows to change the masks appropriate for classical ECN and to
configure appropriate masks for accurate ECN.

MFC after: 3 days
Sponsored by: Netflix

show more ...

igc: Remove non-existent legacy absolute and packet timers

igc, derived from igb, does not use these registers. All interrupt
timing is governed by EITR or LLI and driven by write-back.

MFC after:

igc: Remove non-existent legacy absolute and packet timers

igc, derived from igb, does not use these registers. All interrupt
timing is governed by EITR or LLI and driven by write-back.

MFC after: 1 week
Sponsored by: BBOX.io

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

igc(4): Introduce new driver for the Intel I225 Ethernet controller.

This controller supports 2.5G/1G/100MB/10MB speeds, and allows
tx/rx checksum offload, TSO, LRO, and multi-queue operation.

The

igc(4): Introduce new driver for the Intel I225 Ethernet controller.

This controller supports 2.5G/1G/100MB/10MB speeds, and allows
tx/rx checksum offload, TSO, LRO, and multi-queue operation.

The driver was derived from code contributed by Intel, and modified
by Netgate to fit into the iflib framework.

Thanks to Mike Karels for testing and feedback on the driver.

Reviewed by: bcr (manpages), kbowling, scottl, erj
MFC after: 1 month
Relnotes: yes
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D30668

show more ...