UDPLite requires a checksum. Therefore, discard a received packet if
the checksum is 0.

MFC after: 3 days


git-svn-id: svn+ssh://svn.freebsd.org/base/head@272326 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Make size of Tx and Rx rings configurable

Required size of event queue is calculated now.

Submitted by:   Andrew Rybchenko <arybchenko at solarflare.com>
Sponsored by:   Solarflare Communications, Inc.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@272328 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Update SolarFlare driver manual page with new tunables.

Submitted by:   Andrew Rybchenko <arybchenko at solarflare.com>
Sponsored by:   Solarflare Communications, Inc.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@272329 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f