CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2013/06/28 05:59:42
Modified files:
sys/dev/pci : if_bge.c if_bgereg.h
Log message:
Turns out that BGE_STATFLAG_UPDATED bit in the status block doesn't get
properly updated by the newer hardware (seen in the TX completion case).
This leads to very poor transmit performance in the beginning of a TCP
connection. Linux and FreeBSD don't rely on BGE_STATFLAG_UPDATED bit
since they enable MSI and tagged status for 5717+. Doing the same does
indeed fix an issue.
Change was tested by David Imhoff on 5719, 5720 and 5721/5750, Hrvoje
Popovski on 5704 B0, sthen@ on 5723/5784, benno@ on 5704 A3, and
me on 5719, 5720 adn 5714/5715. No objections from kettenis@ and dlg@.
