CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2024/02/15 04:57:38
Modified files:
sys/dev/ic : qwx.c qwxvar.h
Log message:
fix datapath Rx buffer management in qwx(4)
Fixes Tx/Rx stalls where the device ran out of free Rx buffers to use.
The device consumes buffers on the Rx refill ring out of order, which
the ring management code I wrote intially would not handle properly.
Instead of using an index into the ring where we would expect to see
a free slot which was in fact occupied, keep track of free buffers via
a bitmap.
