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| author | Amit Kumar Salecha <amit.salecha@qlogic.com> | 2010-04-22 02:51:35 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-22 15:28:26 -0700 |
| commit | 8ae6df978b986a5ce099e7e7118f127563d2cbbe (patch) | |
| tree | 3caffdbc168440397c2d20a0627c0254188b6bbf /drivers/net/qlcnic | |
| parent | e802af9cabb011f09b9c19a82faef3dd315f27eb (diff) | |
| download | linux-8ae6df978b986a5ce099e7e7118f127563d2cbbe.tar.gz linux-8ae6df978b986a5ce099e7e7118f127563d2cbbe.tar.bz2 linux-8ae6df978b986a5ce099e7e7118f127563d2cbbe.zip | |
qlcnic: additional driver statistics
Added additional driver statistics to track errors in rcv/tx path.
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/qlcnic')
| -rw-r--r-- | drivers/net/qlcnic/qlcnic.h | 4 | ||||
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_ethtool.c | 8 | ||||
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_init.c | 7 | ||||
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_main.c | 4 |
4 files changed, 21 insertions, 2 deletions
diff --git a/drivers/net/qlcnic/qlcnic.h b/drivers/net/qlcnic/qlcnic.h index 28c148cbe37b..6c1da71025e1 100644 --- a/drivers/net/qlcnic/qlcnic.h +++ b/drivers/net/qlcnic/qlcnic.h @@ -428,6 +428,10 @@ struct qlcnic_adapter_stats { u64 xmit_on; u64 xmit_off; u64 skb_alloc_failure; + u64 null_skb; + u64 null_rxbuf; + u64 rx_dma_map_error; + u64 tx_dma_map_error; }; /* diff --git a/drivers/net/qlcnic/qlcnic_ethtool.c b/drivers/net/qlcnic/qlcnic_ethtool.c index 08d6f105371f..6cdc5ebb7411 100644 --- a/drivers/net/qlcnic/qlcnic_ethtool.c +++ b/drivers/net/qlcnic/qlcnic_ethtool.c @@ -69,6 +69,14 @@ static const struct qlcnic_stats qlcnic_gstrings_stats[] = { QLC_SIZEOF(stats.xmit_off), QLC_OFF(stats.xmit_off)}, {"skb_alloc_failure", QLC_SIZEOF(stats.skb_alloc_failure), QLC_OFF(stats.skb_alloc_failure)}, + {"null skb", + QLC_SIZEOF(stats.null_skb), QLC_OFF(stats.null_skb)}, + {"null rxbuf", + QLC_SIZEOF(stats.null_rxbuf), QLC_OFF(stats.null_rxbuf)}, + {"rx dma map error", QLC_SIZEOF(stats.rx_dma_map_error), + QLC_OFF(stats.rx_dma_map_error)}, + {"tx dma map error", QLC_SIZEOF(stats.tx_dma_map_error), + QLC_OFF(stats.tx_dma_map_error)}, }; diff --git a/drivers/net/qlcnic/qlcnic_init.c b/drivers/net/qlcnic/qlcnic_init.c index 01ce74ee99f9..9ef9f58f84dd 100644 --- a/drivers/net/qlcnic/qlcnic_init.c +++ b/drivers/net/qlcnic/qlcnic_init.c @@ -1287,6 +1287,7 @@ qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter, rds_ring->dma_size, PCI_DMA_FROMDEVICE); if (pci_dma_mapping_error(pdev, dma)) { + adapter->stats.rx_dma_map_error++; dev_kfree_skb_any(skb); buffer->skb = NULL; return -ENOMEM; @@ -1311,8 +1312,10 @@ static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter, PCI_DMA_FROMDEVICE); skb = buffer->skb; - if (!skb) + if (!skb) { + adapter->stats.null_skb++; goto no_skb; + } if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) { adapter->stats.csummed++; @@ -1502,6 +1505,8 @@ qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max) if (rxbuf) list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]); + else + adapter->stats.null_rxbuf++; skip: for (; desc_cnt > 0; desc_cnt--) { diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c index e4fd5dcdfb4c..5845dc0616b1 100644 --- a/drivers/net/qlcnic/qlcnic_main.c +++ b/drivers/net/qlcnic/qlcnic_main.c @@ -1589,8 +1589,10 @@ qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) pdev = adapter->pdev; - if (qlcnic_map_tx_skb(pdev, skb, pbuf)) + if (qlcnic_map_tx_skb(pdev, skb, pbuf)) { + adapter->stats.tx_dma_map_error++; goto drop_packet; + } pbuf->skb = skb; pbuf->frag_count = frag_count; |