Messages in this thread Patch in this message | | | From | Soren Brinkmann <> | Subject | [PATCH 3/5] net: macb: Re-enable RX interrupt only when RX is done | Date | Sun, 4 May 2014 15:43:00 -0700 |
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When data is received during the driver processing received data the NAPI is re-scheduled. In that case the RX interrupt should not be re-enabled.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> ---
drivers/net/ethernet/cadence/macb.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c index e38fe39d9589..3f4b8ee0b0e7 100644 --- a/drivers/net/ethernet/cadence/macb.c +++ b/drivers/net/ethernet/cadence/macb.c @@ -891,16 +891,15 @@ static int macb_poll(struct napi_struct *napi, int budget) if (work_done < budget) { napi_complete(napi); - /* - * We've done what we can to clean the buffers. Make sure we - * get notified when new packets arrive. - */ - macb_writel(bp, IER, MACB_RX_INT_FLAGS); - /* Packets received while interrupts were disabled */ status = macb_readl(bp, RSR); - if (unlikely(status)) + if (unlikely(status)) { + if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE) + macb_writel(bp, ISR, MACB_BIT(RCOMP)); napi_reschedule(napi); + } else { + macb_writel(bp, IER, MACB_RX_INT_FLAGS); + } } /* TODO: Handle errors */ -- 1.9.2.1.g06c4abd
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