CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2021/12/14 03:48:10
Modified files:
sys/dev/pci : if_em.c if_em.h if_em_hw.c if_em_hw.h
Log message:
Implement support for selecting SGMII or SerDes mode depending on the
plugged-in SFP transceiver and for reading out transceiver information
via ifconfig(8). To read from the SFP, we need to let the card issue
I2C transfers. Additionally we need I2C to read/write to the PHY when
MDIO is not available. Depending on the SFP's supported media types
we can decide which mode to use.
This fixes hardware-initialization and link-up problems with some em(4)
Fiber NIC and SFP combinations.
Tested by dlg@ and been in snaps for quite a while
ok dlg@ jmatthew@
