Cisco Systems 5709 Manuel D’Utilisation
User Guide
NetXtreme II
January 2010
Bro a d c o m Co rp o r a ti o n
Document
ENGSRVT52-CDUM100-R
Driver Defaults
Page 131
Note that Broadcom validation is limited to a power of 2; for example, 16, 32.
event_coal_div
"Event Coalescing Divide Factor", performance tuning parameter used to moderate the rate of interrupt generation by the
iscsi firmware.
iscsi firmware.
Defaults: 1
Valid values: 1, 2, 4, 8
bnx2i_nopout_when_commands_active
"iSCSI NOOP even when connection is not idle", this parameter enables the offload initiator to send iSCSI NOP-OUT on
wire even when the link is not truly idle. This was introduced to avoid unnecessary session recoveries induced by some older
targets when iSCSI NOP-OUT and iSCSI CMD pdus are intermixed. Newer iSCSI target systems are immune to this
condition and this parameter is turned ON for quite some time.
wire even when the link is not truly idle. This was introduced to avoid unnecessary session recoveries induced by some older
targets when iSCSI NOP-OUT and iSCSI CMD pdus are intermixed. Newer iSCSI target systems are immune to this
condition and this parameter is turned ON for quite some time.
Defaults: 1
Values: Binary parameter, 0/1
The parameters can also be set in modprobe.conf. See the man page for more information.
D
RIVER
D
EFAULTS
•
•
BNX
2 D
RIVER
Speed: Autonegotiation with all speeds advertised
Flow Control: Autonegotiation with RX and TX advertised
MTU: 1500 (range is 46–9000)
RX Ring Size: 255 (range is 0–4080)
RX Jumbo Ring Size: 0 (range 0–16320) adjusted by the driver based on MTU and RX Ring Size
TX Ring Size: 255 (range is (MAX_SKB_FRAGS+1)–255). MAX_SKB_FRAGS varies on different kernels and different
architectures. On a 2.6 kernel for x86, MAX_SKB_FRAGS is 18.
architectures. On a 2.6 kernel for x86, MAX_SKB_FRAGS is 18.
Coalesce RX Microseconds: 18 (range is 0–1023)
Coalesce RX Microseconds IRQ: 18 (range is 0–1023)
Coalesce RX Frames: 6 (range is 0–255)