Datasheet

Remote Boot Options
Features Benefits
Preboot eXecution Environment (PXE) ash interface
support
• Enables system boot up via the EFI (32 bit and 64 bit)
• Flash interface for PXE 2.1 option ROM
Intel® Ethernet iSCSI Remote Boot for Windows, Linux,
and VMware
• Enables system boot up via iSCSI
• Provides additional network management capability
Intel Boot Agent software:
Linux boot via PXE or BOOTP, Windows* Deployment
Services, or UEFI
• Enables networked computer to boot using a program code image supplied by a remote server
• Complies with the Pre-boot eXecution Environment (PXE) Version 2.1 Specication
Manageability Features
Features Benefits
Management Component Transport Protocol (MCTP) • Baseboard management controller (BMC) communication between add-in devices using a standardized
protocol
Firmware Based Thermal Management • Can be programmed via the BMC to initiate thermal actions and report thermal occurrences
IEEE 802.3 MII Management Interface • Enables the MAC and software to monitor and control the state of the PHY
MAC/PHY Control and Status • Enhanced control capabilities through PHY reset, link status, duplex indication, and MAC Dx power state
Watchdog timer • Dened by the FLASHT register to minimize Flash updates
Extended error reporting • Messaging support to communicate multiple types/severity of errors
Controller Memory Protection • Main internal memories are protected by error correcting code (ECC) or parity bits
I/O Virtualization Features continued
Features Benefits
Storm control • Limits to the broadcast or multicast trac it can receive
Per-pool statistics, ooads, and jumbo frames support • Each Queue Pair or Pool has its own statistics, o-loads and Jumbo support options
Independent Function Level Reset (FLR) for Physical and
Virtual Functions
• VF resets only the part of the logic dedicated to specic VF and does not inuence the shared port
IEEE 802.1q Virtual Local Area Network (VLAN) support
with VLAN tag insertion, stripping and packet ltering
for up to 4096 VLAN tags
• Adding (for transmits) and removing (for receives) of VLAN tags with no VM involvement
• Filtering packets belonging to certain VLANs
IEEE 802.1q advanced packet ltering • Lower processor utilization
Mirroring rules • Ability to reect network trac to a given VM or VLAN based on up to four rules
Support for Simple VEPA • Support for external VM switching
VF Promiscuous modes • VLAN, unicast, multicast
Stateless Ooads/Performance Features
Features Benefits
TCP/UDP, IPv4 checksum ooads (Rx/ Tx/Large-send);
Extended Tx descriptors for more ooad capabilities
• Improved CPU usage
• Checksum and segmentation capability extended to new standard packet type
IPv6 support for IP/TCP and IP/UDP receive checksum
ooad
• Improved CPU usage
Tx TCP segmentation ooad (IPv4, IPv6) • Increased throughput and lower processor usage
• Compatible with large-send ooad
Transmit Segmentation Ooading (TSO) • Large TCP/UDP I/O is segmented by to the device it to L2 packets according to the requested MSS
Interrupt throttling control • Limits maximum interrupt rate and improves CPU utilization
Legacy and Message Signal Interrupt (MSI) Modes • Interrupt mapping
Message Signal Interrupt Extension (MSI-X) • Dynamic allocation of up to 25 vectors per port
Intelligent interrupt generation • Enhanced software device driver performance
Receive Side Scaling (RSS) for Windows environment
Scalable I/O for Linux environments (IPv4, IPv6, TCP/UDP
• Up to eight queues per port
Support for packets up to 9.5K Bytes (Jumbo Frames) • Improves the system performance related to handling of network data on multiprocessor systems
• Enables higher and better throughput of data
Low Latency Interrupts • Based on the sensitivity of the incoming data, the controller can bypass the automatic moderation of time
intervals between the interrupts
Header/packet data split in receive • Helps the driver to focus on the relevant part of the packet without the need to parse it
PCIe v2.1 TLP Processing Hint Requester • Provides hints on a per transaction basis
Descriptor ring management hardware for Transmit and
Receive
• Optimized descriptor fetch and write-back for ecient system memory and PCIe bandwidth usage
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