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Commit 665d1eca authored by Harish Patil's avatar Harish Patil Committed by David S. Miller
Browse files

qlcnic: Enhance Tx timeout debug data collection. 



- Collect a firmware dump on first Tx timeout if netif_msg_tx_err() is set
- Log Receive and Status ring info on Tx timeout, in addition to Tx ring info
- Log additional Tx ring info if netif_msg_tx_err() is set

Signed-off-by: default avatarHarish Patil <harish.patil@qlogic.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fb0d164c

drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c

+35 −6
Original line number Diff line number Diff line
@@ -2980,17 +2980,43 @@ static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring) 
	}

}



static void qlcnic_dump_tx_rings(struct qlcnic_adapter *adapter)

static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)

{

	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;

	struct net_device *netdev = adapter->netdev;

	struct qlcnic_host_rds_ring *rds_ring;

	struct qlcnic_host_sds_ring *sds_ring;

	struct qlcnic_host_tx_ring *tx_ring;

	int ring;



	if (!netdev || !netif_running(netdev))

		return;



	for (ring = 0; ring < adapter->max_rds_rings; ring++) {

		rds_ring = &recv_ctx->rds_rings[ring];

		if (!rds_ring)

			continue;

		netdev_info(netdev,

			    "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",

			     ring, readl(rds_ring->crb_rcv_producer),

			     rds_ring->producer, rds_ring->num_desc);

	}



	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {

		sds_ring = &(recv_ctx->sds_rings[ring]);

		if (!sds_ring)

			continue;

		netdev_info(netdev,

			    "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",

			    ring, readl(sds_ring->crb_sts_consumer),

			    sds_ring->consumer, readl(sds_ring->crb_intr_mask),

			    sds_ring->num_desc);

	}



	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {

		tx_ring = &adapter->tx_ring[ring];

		if (!tx_ring)

			continue;

		netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",

			    ring, tx_ring->ctx_id);

		netdev_info(netdev,
@@ -3013,9 +3039,10 @@ static void qlcnic_dump_tx_rings(struct qlcnic_adapter *adapter) 
		netdev_info(netdev, "Total desc=%d, Available desc=%d\n",

			    tx_ring->num_desc, qlcnic_tx_avail(tx_ring));



		if (netif_msg_tx_done(adapter->ahw))

		if (netif_msg_tx_err(adapter->ahw))

			dump_tx_ring_desc(tx_ring);

	}



}



static void qlcnic_tx_timeout(struct net_device *netdev)
@@ -3025,16 +3052,18 @@ static void qlcnic_tx_timeout(struct net_device *netdev) 
	if (test_bit(__QLCNIC_RESETTING, &adapter->state))

		return;



	if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {

		netdev_info(netdev, "Tx timeout, reset the adapter.\n");

	qlcnic_dump_rings(adapter);



	if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||

	    netif_msg_tx_err(adapter->ahw)) {

		netdev_err(netdev, "Tx timeout, reset the adapter.\n");

		if (qlcnic_82xx_check(adapter))

			adapter->need_fw_reset = 1;

		else if (qlcnic_83xx_check(adapter))

			qlcnic_83xx_idc_request_reset(adapter,

						      QLCNIC_FORCE_FW_DUMP_KEY);

	} else {

		netdev_info(netdev, "Tx timeout, reset adapter context.\n");

		qlcnic_dump_tx_rings(adapter);

		netdev_err(netdev, "Tx timeout, reset adapter context.\n");

		adapter->ahw->reset_context = 1;

	}

}