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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: Harish Patil <harish.patil@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Harish Patil 2014-06-27 19:01:38 -04:00 committed by David S. Miller
parent fb0d164cc1
commit 665d1eca03
1 changed files with 35 additions and 6 deletions
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41
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
View File

@ -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;
}
}