From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Choi, David" Subject: [patch 3.8-rc2] drivers/net/ethernet/micrel/ks8851_mll Date: Wed, 9 Jan 2013 20:17:29 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Cc: "netdev@vger.kernel.org" , "Choi, David" , "Doong, Ping" To: "davem@davemloft.net" Return-path: Received: from p01c12o149.mxlogic.net ([208.65.145.72]:38704 "EHLO p01c12o149.mxlogic.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932106Ab3AIURe convert rfc822-to-8bit (ORCPT ); Wed, 9 Jan 2013 15:17:34 -0500 Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: From: David J. Choi Summary of changes: .add codes to collect statistical information(for example rx/tx packets/bytes, error packets) about Ethernet packets. Signed-off-by: David J. Choi --- --- linux-3.8-rc2/drivers/net/ethernet/micrel/ks8851_mll.c.orig 2013-01-03 09:45:57.830447923 -0800 +++ linux-3.8-rc2/drivers/net/ethernet/micrel/ks8851_mll.c 2013-01-03 10:05:57.675756568 -0800 @@ -801,7 +801,14 @@ static void ks_rcv(struct ks_net *ks, st skb_put(skb, frame_hdr->len); skb->protocol = eth_type_trans(skb, netdev); netif_rx(skb); + netdev->stats.rx_packets++; + netdev->stats.rx_bytes += (frame_hdr->len - 4); } else { + netdev->stats.rx_dropped++; + if ((frame_hdr->len >= RX_BUF_SIZE) || (frame_hdr->len == 0)) + netdev->stats.rx_length_errors++; + if (frame_hdr->sts & RXFSHR_RXFV) + netdev->stats.rx_frame_errors++; pr_err("%s: err:skb alloc\n", __func__); ks_wrreg16(ks, KS_RXQCR, (ks->rc_rxqcr | RXQCR_RRXEF)); if (skb) @@ -876,6 +883,8 @@ static irqreturn_t ks_irq(int irq, void pmecr &= ~PMECR_WKEVT_MASK; ks_wrreg16(ks, KS_PMECR, pmecr | PMECR_WKEVT_LINK); } + if (unlikely(status & IRQ_RXOI)) + ks->netdev->stats.rx_over_errors++; /* this should be the last in IRQ handler*/ ks_restore_cmd_reg(ks); @@ -1015,6 +1024,8 @@ static int ks_start_xmit(struct sk_buff if (likely(ks_tx_fifo_space(ks) >= skb->len + 12)) { ks_write_qmu(ks, skb->data, skb->len); + netdev->stats.tx_bytes += skb->len; + netdev->stats.tx_packets++; dev_kfree_skb(skb); } else retv = NETDEV_TX_BUSY; ---