Users Guide

7–Linux Driver Software
Driver Defaults
49 BC0054508-00 J
RX Ring Size: 255 (range is 0–4080)
RX Jumbo Ring Size: 0 (range is 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.
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)
Coalesce RX Frames IRQ: 6 (range is 0–255)
Coalesce TX Microseconds: 80 (range is 0–1023)
Coalesce TX Microseconds IRQ: 80 (range is 0–1023)
Coalesce TX Frames: 20 (range is 0–255)
Coalesce TX Frames IRQ: 20 (range is 0–255)
Coalesce Statistics Microseconds: 999936 (approximately 1 second) (range
is 0–16776960 in increments of 256)
MSI: Enabled (if supported by the 2.6 kernel and the interrupt test passes)
TSO: Enabled (on 2.6 kernels)
WoL: Initial setting based on the NVRAM setting
bnx2x Driver Defaults
Speed: Autonegotiation with all speeds advertised
Flow control: Autonegotiation with RX and TX advertised
MTU: 1500 (range is 46–9600)
RX Ring Size: 4078 (range is 0–4078)
TX Ring Size: 4078 (range is (MAX_SKB_FRAGS+4)–4078). MAX_SKB_FRAGS
varies on different kernels and different architectures. On a 2.6 kernel for x86,
MAX_SKB_FRAGS is 18.
Coalesce RX Microseconds: 25 (range is 0–3000)
Coalesce TX Microseconds: 50 (range is 0–12288)
Coalesce Statistics Microseconds: 999936 (approximately 1 second) (range
is 0–16776960 in increments of 256)
MSI-X: Enabled (if supported by the 2.6 kernel and the interrupt test passes)