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1 Release notes for Neterion's (Formerly S2io) Xframe I/II PCI-X 10GbE driver.
5 - 1. Introduction
6 - 2. Identifying the adapter/interface
7 - 3. Features supported
8 - 4. Command line parameters
9 - 5. Performance suggestions
10 - 6. Available Downloads
14 This Linux driver supports Neterion's Xframe I PCI-X 1.0 and
15 Xframe II PCI-X 2.0 adapters. It supports several features
16 such as jumbo frames, MSI/MSI-X, checksum offloads, TSO, UFO and so on.
25 # dmesg | tail -40
32 driver version, interface name(eth3, eth4), Interrupt type(INTA, MSI, MSI-X).
33 In case of Xframe II, the PCI/PCI-X bus width and frequency are displayed
36 To associate an interface with a physical adapter use "ethtool -p <ethX>".
46 c. Multi-buffer receive mode. Scattering of packet across multiple
47 buffers. Currently driver supports 2-buffer mode which yields
51 d. MSI/MSI-X. Can be enabled on platforms which support this feature
55 e. Statistics. Comprehensive MAC-level and software statistics displayed
56 using "ethtool -S" option.
58 f. Multi-FIFO/Ring. Supports up to 8 transmit queues and receive rings,
61 4. Command line parameters
64 Valid range: 1-8
69 Valid range: 1-8
83 Specifies interrupt type. Possible values 0(INTA), 2(MSI-X)
89 a. Set MTU to maximum(9000 for switch setup, 9600 in back-to-back configuration)
93 # sysctl -w net.ipv4.tcp_rmem="210000 210000 210000"
94 # sysctl -w net.ipv4.tcp_wmem="210000 210000 210000"
96 # sysctl -w net.ipv4.tcp_rmem="10000000 10000000 10000000"
97 # sysctl -w net.ipv4.tcp_wmem="10000000 10000000 10000000"
102 max-split-transactions(MOST) and MMRBC (use setpci command).
109 #setpci -d 17d5:* 62=1d
111 #setpci -d 17d5:* 62=3d
117 c. Turn on TSO(using "ethtool -K")
118 # ethtool -K <ethX> tso on
123 #setpci -d 17d5:* LATENCY_TIMER=f8
125 b. Use 2-buffer mode. This results in large performance boost on
127 c. Ensure Receive Checksum offload is enabled. Use "ethtool -K ethX" command to
129 d. Enable NAPI feature(in kernel configuration Device Drivers ---> Network
130 device support ---> Ethernet (10000 Mbit) ---> S2IO 10Gbe Xframe NIC) to
136 http://vip.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/
137 26310_AMD-8131_HyperTransport_PCI-X_Tunnel_Revision_Guide_rev_3_18.pdf
140 Neterion "s2io" driver in Red Hat and Suse 2.6-based distributions is kept up