Messages in this thread Patch in this message | | | From | Jiang Wang <> | Subject | [PATCH] bnx2: turn off the network statck during initialization | Date | Thu, 16 Aug 2012 11:21:35 -0700 |
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The initialization state of bnx2 driver is wrong. It does not turn of the Linux network stack using netif_carrier_off. This may lead to inconsistent report from ethtool as the link is up but speed is unknown when the cable is not plugged in.
E.g. Speed: Unknown! (0)<-------------------------------------- Duplex: Half <-------------------------------------- MDI: Unknown! (0) Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on Supports Wake-on: g Wake-on: d Link detected: yes <---------------------------------------
This patches fixed the problem by turning off the network stack during initialization.
Signed-off-by: Jiang Wang <jwang@riverbed.com> --- drivers/net/ethernet/broadcom/bnx2.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c index ac7b744..ce4548d 100644 --- a/drivers/net/ethernet/broadcom/bnx2.c +++ b/drivers/net/ethernet/broadcom/bnx2.c @@ -8463,6 +8463,10 @@ bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) dev->features |= dev->hw_features; dev->priv_flags |= IFF_UNICAST_FLT; + /* tell the stack to leave us alone until bnx2_open() is called */ + netif_carrier_off(dev); + netif_stop_queue(dev); + if ((rc = register_netdev(dev))) { dev_err(&pdev->dev, "Cannot register net device\n"); goto error; -- 1.7.1
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