MFV: illumos-joyent@9e30beee2f0c127bf41868db46257124206e28d6
OS-5225 Want Fortville TSO support
Reviewed by: Ryan Zezeski <rpz@joyent.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Approved by: Patrick Mooney <patrick.mooney@joyent.com>
Author: Rob Johnston <rob.johnston@joyent.com>

*** 7,19 ****
  .\" A full copy of the text of the CDDL should have accompanied this
  .\" source.  A copy of the CDDL is also available via the Internet at
  .\" http://www.illumos.org/license/CDDL.
  .\"
  .\"
! .\" Copyright (c) 2017 Joyent, Inc.
  .\"
! .Dd September 8, 2017
  .Dt I40E 7D
  .Os
  .Sh NAME
  .Nm i40e
  .Nd Intel 710/722 Ethernet Device Driver
--- 7,19 ----
  .\" A full copy of the text of the CDDL should have accompanied this
  .\" source.  A copy of the CDDL is also available via the Internet at
  .\" http://www.illumos.org/license/CDDL.
  .\"
  .\"
! .\" Copyright (c) 2018 Joyent, Inc.
  .\"
! .Dd May 23, 2018
  .Dt I40E 7D
  .Os
  .Sh NAME
  .Nm i40e
  .Nd Intel 710/722 Ethernet Device Driver
*** 271,280 ****
--- 271,296 ----
  By setting this property to its minimum, all frames will be processed with DMA
  binding.
  By setting this property to its maximum, all frames will be processed by copying
  the frame.
  .Ed
+ .It Sy tx_lso_enable
+ .Bd -filled -compact
+ Minimum:
+ .Sy 0 |
+ Maximum:
+ .Sy 1
+ .Ed
+ .Bd -filled
+ The
+ .Sy tx_lso_enable
+ property controls whether or not the device enables support for Large Segment
+ Offloand (LSO) when transmitting packets.
+ The default is to always enable support for this.
+ Turning it off will decrease throughput when transmitting packets, but should
+ be done if a hardware bug is suspected.
+ .Ed
  .El
  .Sh ARCHITECTURE
  The
  .Nm
  driver is only supported on