[PATCH net-next V2 13/16] net: fec: print more debug info in fec_timeout
From: Troy Kisky <hidden>
Date: 2016-02-25 00:36:56
Also in:
netdev
Subsystem:
freescale imx / mxc fec driver, networking drivers, the rest · Maintainers:
Wei Fang, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Print the current interrupt flags and mask and the interrupt state during the last interrupt in fec_timeout. Signed-off-by: Troy Kisky <redacted> --- 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 001200b..615cca1 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h@@ -506,6 +506,7 @@ 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 afd4060..9a3136b 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c@@ -1107,6 +1107,9 @@ 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;
@@ -1514,6 +1517,7 @@ 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