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Date: Tue, 3 Jun 2008 13:02:52 +0200 From: Lennert Buytenhek <buytenh@...tstofly.org> To: Dale Farnsworth <dale@...nsworth.org> Cc: netdev@...r.kernel.org Subject: [PATCH 37/39] mv643xx_eth: don't read from upper parts of 64-bit mib registers The two 64-bit MIB registers (good_octets_received and good_octets_sent) can trigger weird behavior if reads are done from their 32-bit top parts. This patch avoids reading the top halves entirely. Signed-off-by: Lennert Buytenhek <buytenh@...vell.com> --- drivers/net/mv643xx_eth.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index 0f8e79f..54c9c76 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -983,7 +983,7 @@ static void mib_counters_update(struct mv643xx_eth_private *mep) struct mib_counters *p = &mep->mib_counters; p->good_octets_received += mib_read(mep, 0x00); - p->good_octets_received += (u64)mib_read(mep, 0x04) << 32; +// p->good_octets_received += (u64)mib_read(mep, 0x04) << 32; p->bad_octets_received += mib_read(mep, 0x08); p->internal_mac_transmit_err += mib_read(mep, 0x0c); p->good_frames_received += mib_read(mep, 0x10); @@ -997,7 +997,7 @@ static void mib_counters_update(struct mv643xx_eth_private *mep) p->frames_512_to_1023_octets += mib_read(mep, 0x30); p->frames_1024_to_max_octets += mib_read(mep, 0x34); p->good_octets_sent += mib_read(mep, 0x38); - p->good_octets_sent += (u64)mib_read(mep, 0x3c) << 32; +// p->good_octets_sent += (u64)mib_read(mep, 0x3c) << 32; p->good_frames_sent += mib_read(mep, 0x40); p->excessive_collision += mib_read(mep, 0x44); p->multicast_frames_sent += mib_read(mep, 0x48); -- 1.5.3.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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