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AT-2973SX, AT-2973T, AT-2973T/4, and AT-VNC10S Adapters Installation and User’s Guide
77
Checking the
bnx2 Driver
Defaults
The bnx2 driver defaults to the following settings:
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.
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 NVRAM's setting
Checking Driver
Messages
The following are the most common sample messages that may be logged
in the /var/log/messages file for the bnx2 and bnx2i drivers. Use dmesg -
n <level> command to control the level at which messages appear on
the console. Most systems are set to level 6 by default. To see all
messages, set the level higher. See the following sections:
“Checking the bnx2 Driver Messages” on page 78
“Checking bnx2i Driver Messages” on page 78