Some nic drivers (including iflib) do not initialize if_hwassist until after the interface is brought up. If a lagg member is included in a lagg when its not yet been brought up, that will cause lagg to see if_hwassist=0 and will disable all checksum offload, etc, on the interface. This is almost impossible to debug without kgdb or dtrace, as ifconfig does not surface if_hwassist. Fix this by re-calculating lagg caps (including if_hwassist) after adding a port. I encountered this problem when I had a commented-out if_foo1=up entry in my rc.conf that i neglected to uncomment when I was re-configuring a lagg. Sponsored by: Netflix Reviewed by: markj, zlei Differential Revision: https://reviews.freebsd.org/D58062
FreeBSD Source:
This is the top level of the FreeBSD source directory.
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For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.
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Source Roadmap:
| Directory | Description |
|---|---|
| bin | System/user commands. |
| cddl | Source code for third-party software under the Common Development and Distribution License. |
| contrib | Source code for third-party software. |
| crypto | Source code for cryptographic libraries and commands (see crypto/README). |
| etc | Template files for /etc. |
| include | System include files. |
| kerberos5 | Build system for Kerberos 5 (Heimdal). |
| krb5 | Build system for Kerberos 5 (MIT). |
| lib | System libraries. |
| libexec | System commands intended to be executed by other commands or daemons. |
| packages | Base system packages. |
| release | Makefiles and scripts used for building releases and VM images. |
| rescue | Build system for statically linked /rescue commands. |
| sbin | System commands. |
| secure | Build system for cryptographic libraries and commands (excluding Kerberos). |
| share | Shared resources. |
| stand | Boot loader sources. |
| sys | Kernel sources (see sys/README.md). |
| targets | Support for experimental DIRDEPS_BUILD |
| tests | Tests which can be run by Kyua. See tests/README for additional information. |
| tools | Ancillary utilities and tests (not included in the build). |
| usr.bin | User commands. |
| usr.sbin | System administration commands. |
For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see FreeBSD Handbook.