- NetBSD Manual Pages
KSE(4) NetBSD Kernel Interfaces Manual KSE(4)
Powered by man-cgi (2020-09-24).
Maintained for NetBSD
by Kimmo Suominen.
Based on man-cgi by Panagiotis Christias.
kse -- Micrel 8842/8841 PCI Ethernet controller driver
kse* at pci? dev ? function ?
The kse driver supports Ethernet interfaces based on the Micrel 8842/8841
PCI Ethernet chips. The 8842 has 2 Ethernet ports which behave as a man-
aged switch to bridge each other. It works like a T-shape connector of
Ethernet data flow in which an Ethernet controller sits at the leg of the
T. Frames can flow between the two ports while traffic destined for the
8842 reaches the EMAC. The 8841 is a plain 10/100 Ethernet. The kse
driver distinguishes and handles them according to the HW model.
arp(4), ifmedia(4), netintro(4), pci(4), ifconfig(8)
The kse driver was written by Tohru Nishimura.
__STRICT_ALIGNMENT case is not written. 8842 media selection keeps
``auto'' and indicates ``up 100baseTX-FX flow'' when either of two ports
is found link-up. There is no functional provision to see and control
the media selection of them this moment. Advanced features like flow
volume bound, VLAN tag insertion/removal, QoS DiffServ are not imple-
mented and remain uncontrollable by the kse driver. UDP4CSUM is not very
useful since the HW has an implementation error for the case when a large
UDP datagram is fragmented into MTU sized frames.
NetBSD 9.99 July 6, 2006 NetBSD 9.99