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Based on kernel version 3.13. Page generated on 2014-01-20 22:04 EST.

1	Neterion's (Formerly S2io) X3100 Series 10GbE PCIe Server Adapter Linux driver
2	==============================================================================
3	
4	Contents
5	--------
6	
7	1) Introduction
8	2) Features supported
9	3) Configurable driver parameters
10	4) Troubleshooting
11	
12	1) Introduction:
13	----------------
14	This Linux driver supports all Neterion's X3100 series 10 GbE PCIe I/O
15	Virtualized Server adapters.
16	The X3100 series supports four modes of operation, configurable via
17	firmware -
18		Single function mode
19		Multi function mode
20		SRIOV mode
21		MRIOV mode
22	The functions share a 10GbE link and the pci-e bus, but hardly anything else
23	inside the ASIC. Features like independent hw reset, statistics, bandwidth/
24	priority allocation and guarantees, GRO, TSO, interrupt moderation etc are
25	supported independently on each function.
26	
27	(See below for a complete list of features supported for both IPv4 and IPv6)
28	
29	2) Features supported:
30	----------------------
31	
32	i)   Single function mode (up to 17 queues)
33	
34	ii)  Multi function mode (up to 17 functions)
35	
36	iii) PCI-SIG's I/O Virtualization
37	       - Single Root mode: v1.0 (up to 17 functions)
38	       - Multi-Root mode: v1.0 (up to 17 functions)
39	
40	iv)  Jumbo frames
41	       X3100 Series supports MTU up to 9600 bytes, modifiable using
42	       ifconfig command.
43	
44	v)   Offloads supported: (Enabled by default)
45	       Checksum offload (TCP/UDP/IP) on transmit and receive paths
46	       TCP Segmentation Offload (TSO) on transmit path
47	       Generic Receive Offload (GRO) on receive path
48	
49	vi)  MSI-X: (Enabled by default)
50	       Resulting in noticeable performance improvement (up to 7% on certain
51	       platforms).
52	
53	vii) NAPI: (Enabled by default)
54	       For better Rx interrupt moderation.
55	
56	viii)RTH (Receive Traffic Hash): (Enabled by default)
57	       Receive side steering for better scaling.
58	
59	ix)  Statistics
60	       Comprehensive MAC-level and software statistics displayed using
61	       "ethtool -S" option.
62	
63	x)   Multiple hardware queues: (Enabled by default)
64	       Up to 17 hardware based transmit and receive data channels, with
65	       multiple steering options (transmit multiqueue enabled by default).
66	
67	3) Configurable driver parameters:
68	----------------------------------
69	
70	i)  max_config_dev
71	       Specifies maximum device functions to be enabled.
72	       Valid range: 1-8
73	
74	ii) max_config_port
75	       Specifies number of ports to be enabled.
76	       Valid range: 1,2
77	       Default: 1
78	
79	iii)max_config_vpath
80	       Specifies maximum VPATH(s) configured for each device function.
81	       Valid range: 1-17
82	
83	iv) vlan_tag_strip
84	       Enables/disables vlan tag stripping from all received tagged frames that
85	       are not replicated at the internal L2 switch.
86	       Valid range: 0,1 (disabled, enabled respectively)
87	       Default: 1
88	
89	v)  addr_learn_en
90	       Enable learning the mac address of the guest OS interface in
91	       virtualization environment.
92	       Valid range: 0,1 (disabled, enabled respectively)
93	       Default: 0
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