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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 |
94 | |
95 | 4) Troubleshooting: |
96 | ------------------- |
97 | |
98 | To resolve an issue with the source code or X3100 series adapter, please collect |
99 | the statistics, register dumps using ethool, relevant logs and email them to |
100 | support@neterion.com. |
101 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9