Print the current interrupt flags and mask and the interrupt state during the last interrupt in fec_timeout.
Signed-off-by: Troy Kisky <troy.ki...@boundarydevices.com> --- drivers/net/ethernet/freescale/fec.h | 1 + drivers/net/ethernet/freescale/fec_main.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index be0e3d9..d2ca2e2 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -490,6 +490,7 @@ struct fec_enet_private { unsigned int total_tx_ring_size; unsigned int total_rx_ring_size; uint events; + uint last_ievents; struct platform_device *pdev; diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 47df66e..bc084ad9 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1102,6 +1102,9 @@ fec_timeout(struct net_device *ndev) int i; uint events = 0; + pr_err("%s: last=%x %x, mask %x\n", __func__, fep->last_ievents, + readl(fep->hwp + FEC_IEVENT), readl(fep->hwp + FEC_IMASK)); + for (i = 0; i < fep->num_tx_queues; i++) { struct fec_enet_priv_tx_q *txq = fep->tx_queue[i]; int index; @@ -1504,6 +1507,7 @@ fec_enet_interrupt(int irq, void *dev_id) if (!int_events) return IRQ_NONE; + fep->last_ievents = int_events; if (int_events & (FEC_ENET_RXF | FEC_ENET_TXF)) { if (napi_schedule_prep(&fep->napi)) { -- 2.5.0