008a5b07f1
Remove reference to obsolete ifconfig command. MTU can be changed with ip command instead. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
93 lines
2.9 KiB
Text
93 lines
2.9 KiB
Text
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
|
|
ip 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
|