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Date: Thu, 18 Feb 2010 16:07:17 +0530 From: Sathya Perla <sathyap@...verengines.com> To: David Miller <davem@...emloft.net> Cc: sathyap@...verengines.com, netdev@...r.kernel.org Subject: Re: [PATCH net-next-2.6] be2net: free tx buffers when completions never arrive On 18/02/10 02:16 -0800, David Miller wrote: <snip> > > + bool dummy_wrb; > > Some of your lines start with tabs, some with spaces. You > have to use tabs consistently. > <snip> Sorry, mistake fixed; patch below. Thanks a lot... -Sathya >From 8f9134221833d4d00da1482f3051751b625649ca Mon Sep 17 00:00:00 2001 From: Sathya Perla <sathyap@...verengines.com> Date: Thu, 18 Feb 2010 14:57:35 +0530 Subject: [PATCH net-next-2.6] be2net: free tx buffers when completions never arrive In cases like when a pci device is disconnected on an error, pending tx completions will never arrive. Unmap and free such buffers in the tx cleanup path. Signed-off-by: Sathya Perla <sathyap@...verengines.com> --- drivers/net/benet/be_main.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index 68e7848..545c841 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -1128,6 +1128,9 @@ static void be_tx_compl_clean(struct be_adapter *adapter) struct be_queue_info *txq = &adapter->tx_obj.q; struct be_eth_tx_compl *txcp; u16 end_idx, cmpl = 0, timeo = 0; + struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list; + struct sk_buff *sent_skb; + bool dummy_wrb; /* Wait for a max of 200ms for all the tx-completions to arrive. */ do { @@ -1151,6 +1154,15 @@ static void be_tx_compl_clean(struct be_adapter *adapter) if (atomic_read(&txq->used)) dev_err(&adapter->pdev->dev, "%d pending tx-completions\n", atomic_read(&txq->used)); + + /* free posted tx for which compls will never arrive */ + while (atomic_read(&txq->used)) { + sent_skb = sent_skbs[txq->tail]; + end_idx = txq->tail; + index_adv(&end_idx, + wrb_cnt_for_skb(sent_skb, &dummy_wrb) - 1, txq->len); + be_tx_compl_process(adapter, end_idx); + } } static void be_mcc_queues_destroy(struct be_adapter *adapter) -- 1.6.3.3 -- 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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