11-30-2010
I fully agree with last hergp comment. Ethernet settings should be set to auto negotiate. This should just work. If it doesn't, have the vendors fix their hardware instead of trying to mess with settings.
This is from experience. I have seen a lot of networking issues in various sites and plenty of them were due to wrong settings, the most common being one side auto-neg while the other one had fixed speed/duplex mode.
This is somewhat similar to IP settings. If you have a correctly configured dhcp server, things usually work fine. If you have fixed addresses and let people setting them, you quickly end up with duplicate IPs, wrong DNS settings, wrong default routers and so on.
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BNX(4) BSD Kernel Interfaces Manual BNX(4)
NAME
bnx -- Broadcom NetXtreme II 10/100/1000 Ethernet device
SYNOPSIS
bnx* at pci?
brgphy* at mii?
DESCRIPTION
The bnx driver supports Broadcom's NetXtreme II product family, such as the BCM5706 PCI-X and BCM5708-BCM5709 PCI Express Ethernet con-
trollers, which includes the following:
o Dell PowerEdge 1950 integrated BCM5708 NIC (10/100/1000baseT)
o Dell PowerEdge 2950 integrated BCM5708 NIC (10/100/1000baseT)
o Dell PowerEdge M710 integrated BCM5709S NIC (1000baseSX)
o HP NC370F PCI-X Multifunction Gigabit server adapter (1000baseSX)
o HP NC370T PCI-X Multifunction Gigabit server adapter (10/100/1000baseT)
o HP NC373F PCI Express Multifunction Gigabit server adapter (1000baseSX)
o HP NC373i PCI Express Multifunction Gigabit embedded server adapter (10/100/1000baseT)
o HP NC380T PCI Express Dual Port Multifunction Gigabit server adapter (10/100/1000baseT)
o IBM xSeries 3550 integrated BCM5708 NIC (10/100/1000baseT)
o IBM xSeries 3650 integrated BCM5708 NIC (10/100/1000baseT)
The NetXtreme II product family is composed of various Converged NIC (or CNIC) Ethernet controllers which support a TCP Offload Engine (TOE),
Remote DMA (RDMA), and iSCSI acceleration, in addition to standard L2 Ethernet traffic, all on the same controller. The following features
are supported in the bnx driver under NetBSD:
IPv4 receive IP/TCP/UDP checksum offload
Jumbo frames (up to 9022 bytes)
VLAN tag insertion
Interrupt coalescing
10/100/1000Mbps operation in full-duplex mode
10/100Mbps operation in half-duplex mode
The bnx driver supports the following media types:
autoselect Enable autoselection of the media type and options. The user can manually override the autoselected mode via ifconfig(8).
10baseT/UTP Set 10Mbps operation. The ifconfig(8) mediaopt option can also be used to select either full-duplex or half-duplex modes.
100baseTX Set 100Mbps (Fast Ethernet) operation. The ifconfig(8) mediaopt option can also be used to select either full-duplex or
half-duplex modes.
1000baseTX Set 1000baseTX operation over twisted pair. Only full-duplex mode is supported.
1000baseSX Set 1000Mbps (Gigabit Ethernet) operation. Both full-duplex and half-duplex modes are supported.
2500baseSX Set 2500Mbps operation. Only full-duplex mode is supported.
The bnx driver supports the following media options:
full-duplex Force full duplex operation.
half-duplex Force half duplex operation.
For more information on configuring this device, see ifconfig(8).
SEE ALSO
arp(4), brgphy(4), ifmedia(4), intro(4), mii(4), netintro(4), pci(4), ifconfig(8)
HISTORY
The bnx device driver first appeared in NetBSD 4.0.
BSD
December 10, 2010 BSD