From cdd0db058d64f2619b08e7d098ee0014aa0a5bc1 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 28 May 2009 00:00:41 +0000 Subject: net: dont update dev->trans_start Second round of drivers for Gb cards (and NIU one I forgot in the 10GB round) Now that core network takes care of trans_start updates, dont do it in drivers themselves, if possible. Drivers can avoid one cache miss (on dev->trans_start) in their start_xmit() handler. Exceptions are NETIF_F_LLTX drivers Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/acenic.c | 1 - drivers/net/atl1c/atl1c_main.c | 1 - drivers/net/atl1e/atl1e_main.c | 2 +- drivers/net/atlx/atl1.c | 1 - drivers/net/bnx2.c | 1 - drivers/net/dl2k.c | 8 +++----- drivers/net/e1000/e1000_main.c | 1 - drivers/net/e1000e/netdev.c | 1 - drivers/net/hamachi.c | 3 +-- drivers/net/igb/igb_main.c | 1 - drivers/net/igbvf/netdev.c | 1 - drivers/net/jme.c | 1 - drivers/net/niu.c | 2 -- drivers/net/ns83820.c | 6 ++---- drivers/net/qla3xxx.c | 1 - drivers/net/r8169.c | 2 -- drivers/net/sis190.c | 2 -- drivers/net/skge.c | 2 -- drivers/net/sky2.c | 1 - drivers/net/tg3.c | 8 ++------ drivers/net/yellowfin.c | 3 +-- 21 files changed, 10 insertions(+), 39 deletions(-) diff --git a/drivers/net/acenic.c b/drivers/net/acenic.c index 57bc7152785..08419ee1029 100644 --- a/drivers/net/acenic.c +++ b/drivers/net/acenic.c @@ -2573,7 +2573,6 @@ restart: netif_wake_queue(dev); } - dev->trans_start = jiffies; return NETDEV_TX_OK; overflow: diff --git a/drivers/net/atl1c/atl1c_main.c b/drivers/net/atl1c/atl1c_main.c index fc1092b835d..ac76136d70f 100644 --- a/drivers/net/atl1c/atl1c_main.c +++ b/drivers/net/atl1c/atl1c_main.c @@ -2113,7 +2113,6 @@ static int atl1c_xmit_frame(struct sk_buff *skb, struct net_device *netdev) atl1c_tx_map(adapter, skb, tpd, type); atl1c_tx_queue(adapter, skb, tpd, type); - netdev->trans_start = jiffies; spin_unlock_irqrestore(&adapter->tx_lock, flags); return NETDEV_TX_OK; } diff --git a/drivers/net/atl1e/atl1e_main.c b/drivers/net/atl1e/atl1e_main.c index c271b7537fa..a01383d53a0 100644 --- a/drivers/net/atl1e/atl1e_main.c +++ b/drivers/net/atl1e/atl1e_main.c @@ -1893,7 +1893,7 @@ static int atl1e_xmit_frame(struct sk_buff *skb, struct net_device *netdev) atl1e_tx_map(adapter, skb, tpd); atl1e_tx_queue(adapter, tpd_req, tpd); - netdev->trans_start = jiffies; + netdev->trans_start = jiffies; /* NETIF_F_LLTX driver :( */ spin_unlock_irqrestore(&adapter->tx_lock, flags); return NETDEV_TX_OK; } diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c index 13f0bdc3244..fccfbf2cf93 100644 --- a/drivers/net/atlx/atl1.c +++ b/drivers/net/atlx/atl1.c @@ -2431,7 +2431,6 @@ static int atl1_xmit_frame(struct sk_buff *skb, struct net_device *netdev) atl1_tx_queue(adapter, count, ptpd); atl1_update_mailbox(adapter); mmiowb(); - netdev->trans_start = jiffies; return NETDEV_TX_OK; } diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index c37acc1d10a..83ee0f53f2d 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -6211,7 +6211,6 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) mmiowb(); txr->tx_prod = prod; - dev->trans_start = jiffies; if (unlikely(bnx2_tx_avail(bp, txr) <= MAX_SKB_FRAGS)) { netif_tx_stop_queue(txq); diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c index 4a1b554654e..895d72143ee 100644 --- a/drivers/net/dl2k.c +++ b/drivers/net/dl2k.c @@ -539,7 +539,7 @@ rio_tx_timeout (struct net_device *dev) dev->name, readl (ioaddr + TxStatus)); rio_free_tx(dev, 0); dev->if_port = 0; - dev->trans_start = jiffies; + dev->trans_start = jiffies; /* prevent tx timeout */ } /* allocate and initialize Tx and Rx descriptors */ @@ -610,7 +610,7 @@ start_xmit (struct sk_buff *skb, struct net_device *dev) if (np->link_status == 0) { /* Link Down */ dev_kfree_skb(skb); - return 0; + return NETDEV_TX_OK; } ioaddr = dev->base_addr; entry = np->cur_tx % TX_RING_SIZE; @@ -665,9 +665,7 @@ start_xmit (struct sk_buff *skb, struct net_device *dev) writel (0, dev->base_addr + TFDListPtr1); } - /* NETDEV WATCHDOG timer */ - dev->trans_start = jiffies; - return 0; + return NETDEV_TX_OK; } static irqreturn_t diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 9a32d0c73cb..79fe1ee3da5 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -3365,7 +3365,6 @@ static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) if (count) { e1000_tx_queue(adapter, tx_ring, tx_flags, count); - netdev->trans_start = jiffies; /* Make sure there is space in the ring for the next send. */ e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2); diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index ccaaee0951c..f012cc62eff 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -4149,7 +4149,6 @@ static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) count = e1000_tx_map(adapter, skb, first, max_per_txd, nr_frags, mss); if (count) { e1000_tx_queue(adapter, tx_flags, count); - netdev->trans_start = jiffies; /* Make sure there is space in the ring for the next send. */ e1000_maybe_stop_tx(netdev, MAX_SKB_FRAGS + 2); diff --git a/drivers/net/hamachi.c b/drivers/net/hamachi.c index 310ee035067..26151fa35df 100644 --- a/drivers/net/hamachi.c +++ b/drivers/net/hamachi.c @@ -1163,7 +1163,7 @@ static void hamachi_tx_timeout(struct net_device *dev) hmp->rx_ring[RX_RING_SIZE-1].status_n_length |= cpu_to_le32(DescEndRing); /* Trigger an immediate transmit demand. */ - dev->trans_start = jiffies; + dev->trans_start = jiffies; /* prevent tx timeout */ hmp->stats.tx_errors++; /* Restart the chip's Tx/Rx processes . */ @@ -1364,7 +1364,6 @@ static int hamachi_start_xmit(struct sk_buff *skb, struct net_device *dev) hmp->tx_full = 1; netif_stop_queue(dev); } - dev->trans_start = jiffies; if (hamachi_debug > 4) { printk(KERN_DEBUG "%s: Hamachi transmit frame #%d queued in slot %d.\n", diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 8e93750d512..958b2879da4 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -3344,7 +3344,6 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb, if (count) { igb_tx_queue_adv(adapter, tx_ring, tx_flags, count, skb->len, hdr_len); - netdev->trans_start = jiffies; /* Make sure there is space in the ring for the next send. */ igb_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 4); } else { diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c index 44a8eef03a7..5f7ba1a4990 100644 --- a/drivers/net/igbvf/netdev.c +++ b/drivers/net/igbvf/netdev.c @@ -2270,7 +2270,6 @@ static int igbvf_xmit_frame_ring_adv(struct sk_buff *skb, if (count) { igbvf_tx_queue_adv(adapter, tx_ring, tx_flags, count, skb->len, hdr_len); - netdev->trans_start = jiffies; /* Make sure there is space in the ring for the next send. */ igbvf_maybe_stop_tx(netdev, MAX_SKB_FRAGS + 4); } else { diff --git a/drivers/net/jme.c b/drivers/net/jme.c index 621a7c0c46b..1e3c63d67b9 100644 --- a/drivers/net/jme.c +++ b/drivers/net/jme.c @@ -1939,7 +1939,6 @@ jme_start_xmit(struct sk_buff *skb, struct net_device *netdev) TXCS_SELECT_QUEUE0 | TXCS_QUEUE0S | TXCS_ENABLE); - netdev->trans_start = jiffies; tx_dbg(jme, "xmit: %d+%d@%lu\n", idx, skb_shinfo(skb)->nr_frags + 2, diff --git a/drivers/net/niu.c b/drivers/net/niu.c index 0d9de5ac413..edac3a0b02d 100644 --- a/drivers/net/niu.c +++ b/drivers/net/niu.c @@ -6777,8 +6777,6 @@ static int niu_start_xmit(struct sk_buff *skb, struct net_device *dev) netif_tx_wake_queue(txq); } - dev->trans_start = jiffies; - out: return NETDEV_TX_OK; diff --git a/drivers/net/ns83820.c b/drivers/net/ns83820.c index d531614a90b..940962ae8f2 100644 --- a/drivers/net/ns83820.c +++ b/drivers/net/ns83820.c @@ -1204,9 +1204,7 @@ again: if (stopped && (dev->tx_done_idx != tx_done_idx) && start_tx_okay(dev)) netif_start_queue(ndev); - /* set the transmit start time to catch transmit timeouts */ - ndev->trans_start = jiffies; - return 0; + return NETDEV_TX_OK; } static void ns83820_update_stats(struct ns83820 *dev) @@ -1626,7 +1624,7 @@ static void ns83820_tx_watch(unsigned long data) ); #endif - if (time_after(jiffies, ndev->trans_start + 1*HZ) && + if (time_after(jiffies, dev_trans_start(ndev) + 1*HZ) && dev->tx_done_idx != dev->tx_free_idx) { printk(KERN_DEBUG "%s: ns83820_tx_watch: %u %u %d\n", ndev->name, diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c index cadc32c94c1..8a823ecc99a 100644 --- a/drivers/net/qla3xxx.c +++ b/drivers/net/qla3xxx.c @@ -2617,7 +2617,6 @@ static int ql3xxx_send(struct sk_buff *skb, struct net_device *ndev) &port_regs->CommonRegs.reqQProducerIndex, qdev->req_producer_index); - ndev->trans_start = jiffies; if (netif_msg_tx_queued(qdev)) printk(KERN_DEBUG PFX "%s: tx queued, slot %d, len %d\n", ndev->name, qdev->req_producer_index, skb->len); diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 0ec0605bceb..7fa88d2b4c9 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -3279,8 +3279,6 @@ static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev) status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); txd->opts1 = cpu_to_le32(status); - dev->trans_start = jiffies; - tp->cur_tx += frags + 1; smp_wmb(); diff --git a/drivers/net/sis190.c b/drivers/net/sis190.c index 55ccd51d247..13b8ca41d57 100644 --- a/drivers/net/sis190.c +++ b/drivers/net/sis190.c @@ -1204,8 +1204,6 @@ static int sis190_start_xmit(struct sk_buff *skb, struct net_device *dev) SIS_W32(TxControl, 0x1a00 | CmdReset | CmdTxEnb); - dev->trans_start = jiffies; - dirty_tx = tp->dirty_tx; if ((tp->cur_tx - NUM_TX_DESC) == dirty_tx) { netif_stop_queue(dev); diff --git a/drivers/net/skge.c b/drivers/net/skge.c index c11cdd08ec5..60d502eef4f 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -2837,8 +2837,6 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev) netif_stop_queue(dev); } - dev->trans_start = jiffies; - return NETDEV_TX_OK; } diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index a2ff9cb1e7a..6b5946fe8ae 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -1690,7 +1690,6 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev) sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod); - dev->trans_start = jiffies; return NETDEV_TX_OK; mapping_unwind: diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index eb65e25989f..a39b534fb43 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -5194,9 +5194,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) } out_unlock: - mmiowb(); - - dev->trans_start = jiffies; + mmiowb(); return NETDEV_TX_OK; } @@ -5407,9 +5405,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev) } out_unlock: - mmiowb(); - - dev->trans_start = jiffies; + mmiowb(); return NETDEV_TX_OK; } diff --git a/drivers/net/yellowfin.c b/drivers/net/yellowfin.c index 7477ffdcddb..3c7a5053f1d 100644 --- a/drivers/net/yellowfin.c +++ b/drivers/net/yellowfin.c @@ -717,7 +717,7 @@ static void yellowfin_tx_timeout(struct net_device *dev) if (yp->cur_tx - yp->dirty_tx < TX_QUEUE_SIZE) netif_wake_queue (dev); /* Typical path */ - dev->trans_start = jiffies; + dev->trans_start = jiffies; /* prevent tx timeout */ dev->stats.tx_errors++; } @@ -876,7 +876,6 @@ static int yellowfin_start_xmit(struct sk_buff *skb, struct net_device *dev) netif_start_queue (dev); /* Typical path */ else yp->tx_full = 1; - dev->trans_start = jiffies; if (yellowfin_debug > 4) { printk(KERN_DEBUG "%s: Yellowfin transmit frame #%d queued in slot %d.\n", -- cgit v1.2.3-18-g5258