
Issue 11
© Solarflare Communications 2014
3
Solarflare Server Adapter
User Guide
PCI Single-Root-IOV, SR-IOV,
capable
127 Virtual functions per port.
Flexible deployment of 1024 channels between Virtual and
Physical Functions.
Support Alternate Routing ID (ARI).
SR-IOV is not supported for Solarflare adapters on IBM System p
servers.
10-gigabit Ethernet
Supports the ability to design a cost effective, high performance
10 Gigabit Ethernet solution.
Receive Side Scaling (RSS)
IPv4 and IPv6 RSS raises the utilization levels of multi-core
servers dramatically by distributing I/O load across all CPUs and
cores.
Stateless offloads
Through the addition of hardware based TCP segmentation and
reassembly offloads, VLAN, VxLAN and FCOE offloads.
Transmit rate pacing (per
queue)
Provides a mechanism for enforcing bandwidth quotas across all
guest operating systems. Software re-programmable on the fly
to allow for adjustment as congestion increases on the network.
Jumbo frame support
Support for up to 9216 byte jumbo frames.
MSI-X support
1024 MSI-X interrupt support enables higher levels of
performance.
Can also work with MSI or legacy line based interrupts.
Ultra low latency
Cut through architecture. < 7
μ
s end to end latency with
standard kernel drivers, < 3
μ
s with Onload drivers.
Remote boot
Support for PXE boot 2.1 and iSCSI Boot provides flexibility in
cluster design and diskless servers (see
).
Network boot is not supported for Solarflare adapters on IBM
System p servers.
MAC address filtering
Enables the hardware to steer packets based on the MAC
address to a VNIC.
Hardware timestamps
The Solarflare Flareon™ SFN7000 series adapters can support
hardware timestamping for all received network packets -
including PTP.
The SFN5322F and SFN6322F adapters can generate hardware
timestamps of PTP packets.