From: Padmanabh Ratnakar Date: Mon, 19 Dec 2011 01:53:35 +0000 (+0000) Subject: be2net: Fix INTx processing for Lancer X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=93c86700c0ae3a1407b979073f423e62e29372c1;p=linux-beck.git be2net: Fix INTx processing for Lancer Lancer does not have HW registers to indicate the EQ causing the INTx interrupt. As a result EQE entries of one EQ may be consumed when interrupt is caused by another EQ. Fix this by arming CQs at the end of NAPI poll routine to regenerate the EQEs. Signed-off-by: Padmanabh Ratnakar Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index b145a4963947..76f3a985e1d5 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -1970,6 +1970,7 @@ static int be_poll_tx_mcc(struct napi_struct *napi, int budget) struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi); struct be_adapter *adapter = container_of(tx_eq, struct be_adapter, tx_eq); + struct be_mcc_obj *mcc_obj = &adapter->mcc_obj; struct be_tx_obj *txo; struct be_eth_tx_compl *txcp; int tx_compl, mcc_compl, status = 0; @@ -2006,12 +2007,19 @@ static int be_poll_tx_mcc(struct napi_struct *napi, int budget) mcc_compl = be_process_mcc(adapter, &status); if (mcc_compl) { - struct be_mcc_obj *mcc_obj = &adapter->mcc_obj; be_cq_notify(adapter, mcc_obj->cq.id, true, mcc_compl); } napi_complete(napi); + /* Arm CQ again to regenerate EQEs for Lancer in INTx mode */ + if (lancer_chip(adapter) && !msix_enabled(adapter)) { + for_all_tx_queues(adapter, txo, i) + be_cq_notify(adapter, txo->cq.id, true, 0); + + be_cq_notify(adapter, mcc_obj->cq.id, true, 0); + } + be_eq_notify(adapter, tx_eq->q.id, true, false, 0); adapter->drv_stats.tx_events++; return 1;