sunvnet: add SG, HW_CSUM, GSO, and TSO support

This patch set adds everything needed for TSO support in sunvnet. On my test hardware, this increases the single-stream TCP throughput for the default 1500-byte MTU Linux-Linux from ~2Gbps to 10Gbps and Linux-Solaris from ~2Gbps to 6Gbps.

David L Stevens (6):
sunvnet: rename vnet_port_alloc_tx_bufs and move after version
negotiation
sunvnet: add VIO v1.7 and v1.8 support
sunvnet: add scatter/gather support
sunvnet: add checksum offload support
sunvnet: add GSO support
sunvnet: add TSO support

 arch/sparc/include/asm/vio.h       |   19 ++
 drivers/net/ethernet/sun/sunvnet.c |  406 ++++++++++++++++++++++++++++++++----
 drivers/net/ethernet/sun/sunvnet.h |    9 +-
 3 files changed, 388 insertions(+), 46 deletions(-)

From: David L Stevens <[email protected]>
Date: Tue, 02 Dec 2014 15:30:39 -0500

Looks great, series applied, thanks!