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Message-ID: <8a647610-8688-4c36-bca4-ccd1ddff7705@exht1.ad.emulex.com> Date: Wed, 25 Apr 2012 17:16:39 +0530 From: Padmanabh Ratnakar <padmanabh.ratnakar@...lex.com> To: <netdev@...r.kernel.org> CC: Padmanabh Ratnakar <padmanabh.ratnakar@...lex.com> Subject: [PATCH net-next 4/7] be2net: Fix traffic stall INTx mode EQ is getting armed wrongly in INTx mode as INTx interrupt is taking some time to deassert. This can cause another interrupt while NAPI is scheduled and scheduling a NAPI in interrupt does not take effect. This causes interrupt to be missed and traffic stalls. Fixing this by preventing wrong arming of EQ. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@...lex.com> --- drivers/net/ethernet/emulex/benet/be_main.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index a9a11d4..9d42fab 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -1571,7 +1571,9 @@ static int event_handle(struct be_eq_obj *eqo) if (!num) rearm = true; - be_eq_notify(eqo->adapter, eqo->q.id, rearm, true, num); + if (num || msix_enabled(eqo->adapter)) + be_eq_notify(eqo->adapter, eqo->q.id, rearm, true, num); + if (num) napi_schedule(&eqo->napi); -- 1.6.0.2 -- 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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