Dell Emulex Family of Adapters - Manual (Page 600)

Emulex Drivers for Windows User Manual P010077-01A Rev. A
3. Configuration
NIC Driver Configuration
600
Recv Segment
Coalescing (IPv6) Disabled (default on Windows
Server 2008, Windows Server
2008 R2)
Enabled (default on Windows
Server 2012) Windows Server 2008
Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2 RSC merges multiple TCP segments
and identifies them as a single
coalesced unit to the operating
system's TCP/IP stack. This
reduces the per-packet receive
processing overhead and CPU
usage when standard 1514 byte
sized frames are in use.
Notes:
• If checksum offloads are
disabled, RSC should also be
disabled. RSC depends on
checksum offloads for better
performance.
• Both RSC (IPV4) and RSC (IPV6)
are coerced to zero if TCP
Connection Offload (IPV4) is
enabled.
RSS Base Processor
Group Min: 1
Max: 63 Windows Server 2012 This defines the base processor
group for the RSS queues on the
network adapter. A processor
group contains 64 logical
processors.
This value may be modified in
conjunction with the “RSS Base
Processor Number” to explicitly
select the desired RSS processors
for the adapter.
RSS Base Processor
Number Min: 1
Max: 63 Windows Server 2012 This defines the base processor
number for the RSS queues on the
network adapter within the given
processor group. A processor
group contains 64 logical
processors, so this value ranges
from 0 to 63.
This value may be modified in
conjunction with the “RSS Base
Processor Group” to explicitly
select the desired RSS processors
for the adapter.
RSS Max Processor
Group Min: 0
Max: The number of processor
groups present on your
system. Windows Server 2012 RSS Max Processor Group allows
you to set the maximum number of
processor groups for the RSS CPUs
Table 3-3 Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, and Windows Server 2012 R2 NIC
Driver Options (Continued)
Option Name Acceptable Values
Supported Operating
Systems
Definition