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    Subject[ 25/38] atl1c: dont use highprio tx queue
    3.0-stable review patch.  If anyone has any objections, please let me know.


    From: Eric Dumazet <>

    [ Upstream commit 11aad99af6ef629ff3b05d1c9f0936589b204316 ]

    This driver attempts to use two TX rings but lacks proper support :

    1) IRQ handler only takes care of TX completion on first TX ring
    2) the stop/start logic uses the legacy functions (for non multiqueue

    This means all packets witk skb mark set to 1 are sent through high
    queue but are never cleaned and queue eventualy fills and block the
    device, triggering the infamous "NETDEV WATCHDOG" message.

    Lets use a single TX ring to fix the problem, this driver is not a real
    multiqueue one yet.

    Minimal fix for stable kernels.

    Reported-by: Thomas Meyer <>
    Tested-by: Thomas Meyer <>
    Signed-off-by: Eric Dumazet <>
    Cc: Jay Cliburn <>
    Cc: Chris Snook <>
    Signed-off-by: David S. Miller <>
    Signed-off-by: Greg Kroah-Hartman <>
    drivers/net/atl1c/atl1c_main.c | 4 ----
    1 file changed, 4 deletions(-)

    --- a/drivers/net/atl1c/atl1c_main.c
    +++ b/drivers/net/atl1c/atl1c_main.c
    @@ -2223,10 +2223,6 @@ static netdev_tx_t atl1c_xmit_frame(stru
    dev_info(&adapter->pdev->dev, "tx locked\n");
    return NETDEV_TX_LOCKED;
    - if (skb->mark == 0x01)
    - type = atl1c_trans_high;
    - else
    - type = atl1c_trans_normal;

    if (atl1c_tpd_avail(adapter, type) < tpd_req) {
    /* no enough descriptor, just stop queue */

     \ /
      Last update: 2012-03-17 00:57    [W:0.019 / U:6.364 seconds]
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