Gigabitethernet Mac; Driver Parameter Values And Definitions - Sun Microsystems GigabitEthernet/S 2.0 Installation And User Manual

GigabitEthernet MAC

The GigabitEthernet MAC (GEM) provides 1000BASE-SX networking interfaces. The
driver automatically sets the link speed to 1000 Mbps and conforms to the IEEE
802.3z Ethernet standard. The GEM SBus ASIC provides the SBus interface, Media
Access Control (MAC) functions, and Physical Code Sublayer (PCS) functions. The
External SERDES, which connects the 1000BASE-SX Compliant SC connector to the
ASIC, provides the physical layer functions.
The GEM MAC and PCS are capable of all the operating speeds and modes listed in
the section, "Auto-Negotiation Mode" on page 23. The PCS performs auto-
negotiation with the remote end of the link (link partner) to select a common mode
of operation.
The PCS also supports a forced mode of operation. You can select the speed and
mode by creating a ge.conf file.

Driver Parameter Values and Definitions

This section describes the parameters and settings for the ge device driver.
lists these parameters.
TABLE 3-1
Parameter
link_status
link_speed
link_mode
ipg1
ipg2
instance
lance_mode
ipg0
adv_1000autoneg_c
ap
14 Sun GigabitEthernet/S 2.0 Adapter Installation and User's Guide • September 1998
ge Driver Parameter, Status, and Descriptions
Status
Read only
Read only
Read only
Read and
write
Read and
write
Read and
write
Read and
write
Read and
write
Read and
write
Description
Defines the current status
Defines the current status
Defines the current status
Inter-packet gap parameter
Inter-packet gap parameter
Device instance
Enable additional delay before transmitting a
packet
Additional delay before transmitting a packet
Operational mode parameter
TABLE 3-1