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Commit 8ae6df97 authored by Amit Kumar Salecha's avatar Amit Kumar Salecha Committed by David S. Miller
Browse files

qlcnic: additional driver statistics 



Added additional driver statistics to track errors in rcv/tx path.

Signed-off-by: default avatarAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e802af9c

drivers/net/qlcnic/qlcnic.h

+4 −0
Original line number Diff line number Diff line
@@ -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;

};



/*

drivers/net/qlcnic/qlcnic_ethtool.c

+8 −0
Original line number Diff line number Diff line
@@ -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)},



};

drivers/net/qlcnic/qlcnic_init.c

+6 −1
Original line number Diff line number Diff line
@@ -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--) {

drivers/net/qlcnic/qlcnic_main.c

+3 −1
Original line number Diff line number Diff line
@@ -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;