From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- .../device_drivers/ethernet/neterion/vxge.rst | 115 +++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 Documentation/networking/device_drivers/ethernet/neterion/vxge.rst (limited to 'Documentation/networking/device_drivers/ethernet/neterion/vxge.rst') diff --git a/Documentation/networking/device_drivers/ethernet/neterion/vxge.rst b/Documentation/networking/device_drivers/ethernet/neterion/vxge.rst new file mode 100644 index 000000000..589c6b15c --- /dev/null +++ b/Documentation/networking/device_drivers/ethernet/neterion/vxge.rst @@ -0,0 +1,115 @@ +.. SPDX-License-Identifier: GPL-2.0 + +============================================================================== +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 -- cgit v1.2.3