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Dual Port Intel
®
X540 10GbE I/O Module
Intel® I/O Expansion Modules for Intel® Platforms HWS
Revision 1.1
Intel order number: G30021-004
12
3.4
Intel
®
X540 10Gb Ethernet Controller
1. General
Serial flash interface
Device disable capability
Package size - 25 mm x 25 mm
2. Networking
10 GbE/1 GbE/100 Mb/s copper PHYs integrated on-chip
Support for jumbo frames of up to 15.5 KB
Flow control support: send/receive pause frames and receive FIFO thresholds
Statistics for management and RMON
802.1q VLAN support
TCP segmentation offload: up to 256 KB
IPv6 support for IP/TCP and IP/UDP receive checksum offload
Fragmented UDP checksum offload for packet reassembly
Message Signaled Interrupts (MSI)
Message Signaled Interrupts (MSI-X)
Interrupt throttling control to limit maximum interrupt rate and improve CPU usage
Receive packet split header
Multiple Receive Queues (RSS) 8x8 and 16x4
32 transmit queues
Receive header replication
Dynamic interrupt moderation
DCA support
TCP timer interrupts
No snoop
Relaxed ordering
Support for 16 Virtual Machines Device Queues (VMDq) per port
3. Host Interface
PCIe base specification 2.1 (2.5GT/s or 5GT/s)
Bus width
— x1, x2, x4, x8
64-bit address support for systems using more than 4 GB of physical memory
4. MAC Functions
Descriptor ring management hardware for transmit and receive
ACPI register set and power down functionality supportingD0 and D3 states
A mechanism for delaying/reducing transmit interrupts
Software-controlled global reset bit (resets everything except the configuration registers)
Four Software-Definable Pins (SDP) per port
Wake up
IPv6 wake-up filters
Configurable flexible filter (through NVM)
LAN function disable capability
Programmable memory transmit buffers (160 KB/port)
Default configuration by NVM for all LEDs for pre-driver functionality
5. Manageability
Eight VLAN L2 filters
16 Flex L3 port filters