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Revision 85746e429f8e5dc8c5c0beadc0f099cb1feab93e authored by Linus Torvalds on 07 July 2011, 20:16:21 UTC, committed by Linus Torvalds on 07 July 2011, 20:16:21 UTC 
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
 
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (31 commits)
  sctp: fix missing send up SCTP_SENDER_DRY_EVENT when subscribe it
  net: refine {udp|tcp|sctp}_mem limits
  vmxnet3: round down # of queues to power of two
  net: sh_eth: fix the parameter for the ETHER of SH7757
  net: sh_eth: fix cannot work half-duplex mode
  net: vlan: enable soft features regardless of underlying device
  vmxnet3: fix starving rx ring whenoc_skb kb fails
  bridge: Always flood broadcast packets
  greth: greth_set_mac_add would corrupt the MAC address.
  net: bind() fix error return on wrong address family
  natsemi: silence dma-debug warnings
  net: 8139too: Initial necessary vlan_features to support vlan
  Fix call trace when interrupts are disabled while sleeping function kzalloc is called
  qlge:Version change to v1.00.00.29
  qlge: Fix printk priority so chip fatal errors are always reported.
  qlge:Fix crash caused by mailbox execution on wedged chip.
  xfrm4: Don't call icmp_send on local error
  ipv4: Don't use ufo handling on later transformed packets
  xfrm: Remove family arg from xfrm_bundle_ok
  ipv6: Don't put artificial limit on routing table size.
  ...
2 parent s 4dd1b49 + 9491230
Raw File
vxge.txt 
Neterion's (Formerly S2io) X3100 Series 10GbE PCIe Server Adapter Linux driver
==============================================================================

Contents
--------

1) Introduction
2) Features supported
3) Configurable driver parameters
4) Troubleshooting

1) Introduction:
----------------
This Linux driver supports all Neterion's X3100 series 10 GbE PCIe I/O
Virtualized Server adapters.
The X3100 series supports four modes of operation, configurable via
firmware -
	Single function mode
	Multi function mode
	SRIOV mode
	MRIOV mode
The functions share a 10GbE link and the pci-e bus, but hardly anything else
inside the ASIC. Features like independent hw reset, statistics, bandwidth/
priority allocation and guarantees, GRO, TSO, interrupt moderation etc are
supported independently on each function.

(See below for a complete list of features supported for both IPv4 and IPv6)

2) Features supported:
----------------------

i)   Single function mode (up to 17 queues)

ii)  Multi function mode (up to 17 functions)

iii) PCI-SIG's I/O Virtualization
       - Single Root mode: v1.0 (up to 17 functions)
       - Multi-Root mode: v1.0 (up to 17 functions)

iv)  Jumbo frames
       X3100 Series supports MTU up to 9600 bytes, modifiable using
       ifconfig command.

v)   Offloads supported: (Enabled by default)
       Checksum offload (TCP/UDP/IP) on transmit and receive paths
       TCP Segmentation Offload (TSO) on transmit path
       Generic Receive Offload (GRO) on receive path

vi)  MSI-X: (Enabled by default)
       Resulting in noticeable performance improvement (up to 7% on certain
       platforms).

vii) NAPI: (Enabled by default)
       For better Rx interrupt moderation.

viii)RTH (Receive Traffic Hash): (Enabled by default)
       Receive side steering for better scaling.

ix)  Statistics
       Comprehensive MAC-level and software statistics displayed using
       "ethtool -S" option.

x)   Multiple hardware queues: (Enabled by default)
       Up to 17 hardware based transmit and receive data channels, with
       multiple steering options (transmit multiqueue enabled by default).

3) Configurable driver parameters:
----------------------------------

i)  max_config_dev
       Specifies maximum device functions to be enabled.
       Valid range: 1-8

ii) max_config_port
       Specifies number of ports to be enabled.
       Valid range: 1,2
       Default: 1

iii)max_config_vpath
       Specifies maximum VPATH(s) configured for each device function.
       Valid range: 1-17

iv) vlan_tag_strip
       Enables/disables vlan tag stripping from all received tagged frames that
       are not replicated at the internal L2 switch.
       Valid range: 0,1 (disabled, enabled respectively)
       Default: 1

v)  addr_learn_en
       Enable learning the mac address of the guest OS interface in
       virtualization environment.
       Valid range: 0,1 (disabled, enabled respectively)
       Default: 0

4) Troubleshooting:
-------------------

To resolve an issue with the source code or X3100 series adapter, please collect
the statistics, register dumps using ethool, relevant logs and email them to
support@neterion.com.
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