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Correct setting TX random backoff register. This register is

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implemented as a 10 bits linear feedback shift register so only
lower 10 bits are valid.
Because this register is used to initialize random backoff interval
register only when resolved duplex is half-duplex, it wouldn't have
caused issues in these days.

Submitted by:	Masanobu SAITOH <msaitoh@NetBSD.org>
This commit is contained in:
Pyun YongHyeon 2013-06-07 01:21:09 +00:00
parent b9d2edd7c8
commit 0a2cc82713
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=251482
2 changed files with 3 additions and 3 deletions
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4
sys/dev/bge/if_bge.c
View File

@ -2280,9 +2280,9 @@ bge_blockinit(struct bge_softc *sc)
/* Set random backoff seed for TX */
CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF,
IF_LLADDR(sc->bge_ifp)[0] + IF_LLADDR(sc->bge_ifp)[1] +
(IF_LLADDR(sc->bge_ifp)[0] + IF_LLADDR(sc->bge_ifp)[1] +
IF_LLADDR(sc->bge_ifp)[2] + IF_LLADDR(sc->bge_ifp)[3] +
IF_LLADDR(sc->bge_ifp)[4] + IF_LLADDR(sc->bge_ifp)[5] +
IF_LLADDR(sc->bge_ifp)[4] + IF_LLADDR(sc->bge_ifp)[5]) &
BGE_TX_BACKOFF_SEED_MASK);
/* Set inter-packet gap */

2
sys/dev/bge/if_bgereg.h
View File

@ -797,7 +797,7 @@
#define BGE_LEDCTL_BLINKPERIOD_OVERRIDE 0x80000000
/* TX backoff seed register */
#define BGE_TX_BACKOFF_SEED_MASK 0x3F
#define BGE_TX_BACKOFF_SEED_MASK 0x3FF
/* Autopoll status register */
#define BGE_AUTOPOLLSTS_ERROR 0x00000001