CVS commit: src/sys/dev/ic

[Izumi Tsutsui <tsutsui%netbsd.org@localhost>]

Module Name:    src
Committed By:   tsutsui
Date:           Thu May 10 14:04:48 UTC 2007

Modified Files:
        src/sys/dev/ic: rtl8169.c

Log Message:
Pull a fix for PCIe variants from FreeBSD's if_re.c rev 1.71:

> - With the PCIe devices, it looks issuing a TX command while there's
>   already a transmission in progress doesn't have any effect. In other
>   words, if you send two packets in rapid succession, the second one may
>   end up sitting in the TX DMA ring until another transmit command is
>   issued later in the future. Basically, if re_txeof() sees that there
>   are still descriptors outstanding, it needs to manually resume the
>   TX DMA channel by issuing another TX command to make sure all
>   transmissions are flushed out. (The PCI devices seem to keep the
>   TX channel moving until all descriptors have been consumed. I'm not
>  sure why the PCIe devices behave differently.)


To generate a diff of this commit:
cvs rdiff -r1.84 -r1.85 src/sys/dev/ic/rtl8169.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.