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Message-ID: <20100213194435.27297.79287.stgit@speedy5.asicdesigners.com>
Date: Sat, 13 Feb 2010 11:44:35 -0800
From: Divy Le Ray <divy@...lsio.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
swise@...ngridcomputing.com
Subject: [PATCH net-next-2.6 2/2] cxgb3: fix link flap
From: Divy Le Ray <divy@...lsio.com>
The driver is expected to report that the link is up
when the phy Rx signal is established and the mac
has not detected a link fault.
The code is however broken, the driver does not check the link fault
status when the phy link status changes.
The link fault status being checked within a short period of time,
it leads to link up/link down events.
Signed-off-by: Divy Le Ray <divy@...lsio.com>
---
drivers/net/cxgb3/t3_hw.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 032cfe0..3ab9f51 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1262,7 +1262,8 @@ void t3_link_changed(struct adapter *adapter, int port_id)
lc->fc = fc;
}
- t3_os_link_changed(adapter, port_id, link_ok, speed, duplex, fc);
+ t3_os_link_changed(adapter, port_id, link_ok && !pi->link_fault,
+ speed, duplex, fc);
}
void t3_link_fault(struct adapter *adapter, int port_id)
--
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