From: Ron Mercer Date: Tue, 3 Nov 2009 13:49:31 +0000 (+0000) Subject: qlge: Clean up netdev->stats usage. X-Git-Tag: MMI-PSA29.97-13-9~25754^2~524 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=885ee398de2354cf4526a3ecaf9e84e292393007;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git qlge: Clean up netdev->stats usage. Don't access netdev->stats in IO path. Save them in tx_ring/rx_rings and add them up when get_stats API is called. Signed-off-by: Ron Mercer Signed-off-by: David S. Miller --- diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h index 5e4d3439043e..1f59f054452d 100644 --- a/drivers/net/qlge/qlge.h +++ b/drivers/net/qlge/qlge.h @@ -1263,6 +1263,9 @@ struct tx_ring { atomic_t queue_stopped; /* Turns queue off when full. */ struct delayed_work tx_work; struct ql_adapter *qdev; + u64 tx_packets; + u64 tx_bytes; + u64 tx_errors; }; /* @@ -1329,6 +1332,11 @@ struct rx_ring { struct napi_struct napi; u8 reserved; struct ql_adapter *qdev; + u64 rx_packets; + u64 rx_multicast; + u64 rx_bytes; + u64 rx_dropped; + u64 rx_errors; }; /* diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c index 4a075484e151..0de596ad8a7e 100644 --- a/drivers/net/qlge/qlge_main.c +++ b/drivers/net/qlge/qlge_main.c @@ -1661,6 +1661,7 @@ static void ql_process_mac_rx_intr(struct ql_adapter *qdev, if (unlikely(!skb)) { QPRINTK(qdev, RX_STATUS, DEBUG, "No skb available, drop packet.\n"); + rx_ring->rx_dropped++; return; } @@ -1669,6 +1670,7 @@ static void ql_process_mac_rx_intr(struct ql_adapter *qdev, QPRINTK(qdev, DRV, ERR, "Receive error, flags2 = 0x%x\n", ib_mac_rsp->flags2); dev_kfree_skb_any(skb); + rx_ring->rx_errors++; return; } @@ -1677,6 +1679,7 @@ static void ql_process_mac_rx_intr(struct ql_adapter *qdev, */ if (skb->len > ndev->mtu + ETH_HLEN) { dev_kfree_skb_any(skb); + rx_ring->rx_dropped++; return; } @@ -1697,6 +1700,7 @@ static void ql_process_mac_rx_intr(struct ql_adapter *qdev, IB_MAC_IOCB_RSP_M_REG ? "Registered" : "", (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) == IB_MAC_IOCB_RSP_M_PROM ? "Promiscuous" : ""); + rx_ring->rx_multicast++; } if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_P) { QPRINTK(qdev, RX_STATUS, DEBUG, "Promiscuous Packet.\n"); @@ -1728,8 +1732,8 @@ static void ql_process_mac_rx_intr(struct ql_adapter *qdev, } } - ndev->stats.rx_packets++; - ndev->stats.rx_bytes += skb->len; + rx_ring->rx_packets++; + rx_ring->rx_bytes += skb->len; skb_record_rx_queue(skb, rx_ring->cq_id); if (skb->ip_summed == CHECKSUM_UNNECESSARY) { if (qdev->vlgrp && @@ -1753,7 +1757,6 @@ static void ql_process_mac_rx_intr(struct ql_adapter *qdev, static void ql_process_mac_tx_intr(struct ql_adapter *qdev, struct ob_mac_iocb_rsp *mac_rsp) { - struct net_device *ndev = qdev->ndev; struct tx_ring *tx_ring; struct tx_ring_desc *tx_ring_desc; @@ -1761,8 +1764,8 @@ static void ql_process_mac_tx_intr(struct ql_adapter *qdev, tx_ring = &qdev->tx_ring[mac_rsp->txq_idx]; tx_ring_desc = &tx_ring->q[mac_rsp->tid]; ql_unmap_send(qdev, tx_ring_desc, tx_ring_desc->map_cnt); - ndev->stats.tx_bytes += (tx_ring_desc->skb)->len; - ndev->stats.tx_packets++; + tx_ring->tx_bytes += (tx_ring_desc->skb)->len; + tx_ring->tx_packets++; dev_kfree_skb(tx_ring_desc->skb); tx_ring_desc->skb = NULL; @@ -2205,6 +2208,7 @@ static netdev_tx_t qlge_send(struct sk_buff *skb, struct net_device *ndev) __func__, tx_ring_idx); netif_stop_subqueue(ndev, tx_ring->wq_id); atomic_inc(&tx_ring->queue_stopped); + tx_ring->tx_errors++; return NETDEV_TX_BUSY; } tx_ring_desc = &tx_ring->q[tx_ring->prod_idx]; @@ -2239,6 +2243,7 @@ static netdev_tx_t qlge_send(struct sk_buff *skb, struct net_device *ndev) NETDEV_TX_OK) { QPRINTK(qdev, TX_QUEUED, ERR, "Could not map the segments.\n"); + tx_ring->tx_errors++; return NETDEV_TX_BUSY; } QL_DUMP_OB_MAC_IOCB(mac_iocb_ptr); @@ -3817,6 +3822,37 @@ static int qlge_change_mtu(struct net_device *ndev, int new_mtu) static struct net_device_stats *qlge_get_stats(struct net_device *ndev) { + struct ql_adapter *qdev = netdev_priv(ndev); + struct rx_ring *rx_ring = &qdev->rx_ring[0]; + struct tx_ring *tx_ring = &qdev->tx_ring[0]; + unsigned long pkts, mcast, dropped, errors, bytes; + int i; + + /* Get RX stats. */ + pkts = mcast = dropped = errors = bytes = 0; + for (i = 0; i < qdev->rss_ring_count; i++, rx_ring++) { + pkts += rx_ring->rx_packets; + bytes += rx_ring->rx_bytes; + dropped += rx_ring->rx_dropped; + errors += rx_ring->rx_errors; + mcast += rx_ring->rx_multicast; + } + ndev->stats.rx_packets = pkts; + ndev->stats.rx_bytes = bytes; + ndev->stats.rx_dropped = dropped; + ndev->stats.rx_errors = errors; + ndev->stats.multicast = mcast; + + /* Get TX stats. */ + pkts = errors = bytes = 0; + for (i = 0; i < qdev->tx_ring_count; i++, tx_ring++) { + pkts += tx_ring->tx_packets; + bytes += tx_ring->tx_bytes; + errors += tx_ring->tx_errors; + } + ndev->stats.tx_packets = pkts; + ndev->stats.tx_bytes = bytes; + ndev->stats.tx_errors = errors; return &ndev->stats; }