Date: Mon, 18 May 2009 01:51:52 +0000 (UTC) From: Xin LI <delphij@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/dev/bce if_bce.c Message-ID: <200905180151.n4I1pwVV033933@repoman.freebsd.org>
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delphij 2009-05-18 01:51:52 UTC
FreeBSD src repository
Modified files:
sys/dev/bce if_bce.c
Log:
SVN rev 192281 on 2009-05-18 01:51:52Z by delphij
DMA synchronization fixes:
- In bce_rx_intr(), use BUS_DMASYNC_POSTREAD instead of
BUS_DMASYNC_POSTWRITE, as we want to "read" from the
rx page chain pages.
- Document why we need to do PREWRITE after we have updated
the rx page chain pages.
- In bce_intr(), use BUS_DMASYNC_POSTREAD and
BUS_DMASYNC_PREREAD when before and after CPU "reading"
the status block.
- Adjust some nearby style mismatches/etc.
Pointed out by: yongari
Approved by: davidch (no objection) but bugs are mine :)
Revision Changes Path
1.54 +13 -16 src/sys/dev/bce/if_bce.c
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