From 6a68afe3a2971953e218e509b16eae0ece43f9ac Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Sat, 23 May 2009 23:14:10 +0200 Subject: IXP4xx: Ethernet and WAN drivers now support "high" hardware queues. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa --- drivers/net/arm/ixp4xx_eth.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'drivers/net/arm') diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c index a740053..d304c73 100644 --- a/drivers/net/arm/ixp4xx_eth.c +++ b/drivers/net/arm/ixp4xx_eth.c @@ -456,7 +456,8 @@ static inline void queue_put_desc(unsigned int queue, u32 phys, debug_desc(phys, desc); BUG_ON(phys & 0x1F); qmgr_put_entry(queue, phys); - BUG_ON(qmgr_stat_overflow(queue)); + /* Don't check for queue overflow here, we've allocated sufficient + length and queues >= 32 don't support this check anyway. */ } @@ -512,8 +513,8 @@ static int eth_poll(struct napi_struct *napi, int budget) #endif napi_complete(napi); qmgr_enable_irq(rxq); - if (!qmgr_stat_empty(rxq) && - napi_reschedule(napi)) { + if (!qmgr_stat_nearly_empty(rxq) && + napi_reschedule(napi)) { /* really empty in fact */ #if DEBUG_RX printk(KERN_DEBUG "%s: eth_poll" " napi_reschedule successed\n", @@ -630,7 +631,8 @@ static void eth_txdone_irq(void *unused) port->tx_buff_tab[n_desc] = NULL; } - start = qmgr_stat_empty(port->plat->txreadyq); + /* really empty in fact */ + start = qmgr_stat_nearly_empty(port->plat->txreadyq); queue_put_desc(port->plat->txreadyq, phys, desc); if (start) { #if DEBUG_TX @@ -708,13 +710,14 @@ static int eth_xmit(struct sk_buff *skb, struct net_device *dev) queue_put_desc(TX_QUEUE(port->id), tx_desc_phys(port, n), desc); dev->trans_start = jiffies; - if (qmgr_stat_empty(txreadyq)) { + if (qmgr_stat_nearly_empty(txreadyq)) { /* really empty in fact */ #if DEBUG_TX printk(KERN_DEBUG "%s: eth_xmit queue full\n", dev->name); #endif netif_stop_queue(dev); /* we could miss TX ready interrupt */ - if (!qmgr_stat_empty(txreadyq)) { + /* really empty in fact */ + if (!qmgr_stat_nearly_empty(txreadyq)) { #if DEBUG_TX printk(KERN_DEBUG "%s: eth_xmit ready again\n", dev->name); -- cgit v1.1 From 2e418400728a9fcacb2ab75f0547584a56b8a584 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Sat, 23 May 2009 23:14:59 +0200 Subject: IXP4xx: Whitespace fixes in the Ethernet driver. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa --- drivers/net/arm/ixp4xx_eth.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/net/arm') diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c index d304c73..672c962 100644 --- a/drivers/net/arm/ixp4xx_eth.c +++ b/drivers/net/arm/ixp4xx_eth.c @@ -817,29 +817,29 @@ static int request_queues(struct port *port) int err; err = qmgr_request_queue(RXFREE_QUEUE(port->id), RX_DESCS, 0, 0, - "%s:RX-free", port->netdev->name); + "%s:RX-free", port->netdev->name); if (err) return err; err = qmgr_request_queue(port->plat->rxq, RX_DESCS, 0, 0, - "%s:RX", port->netdev->name); + "%s:RX", port->netdev->name); if (err) goto rel_rxfree; err = qmgr_request_queue(TX_QUEUE(port->id), TX_DESCS, 0, 0, - "%s:TX", port->netdev->name); + "%s:TX", port->netdev->name); if (err) goto rel_rx; err = qmgr_request_queue(port->plat->txreadyq, TX_DESCS, 0, 0, - "%s:TX-ready", port->netdev->name); + "%s:TX-ready", port->netdev->name); if (err) goto rel_tx; /* TX-done queue handles skbs sent out by the NPEs */ if (!ports_open) { err = qmgr_request_queue(TXDONE_QUEUE, TXDONE_QUEUE_LEN, 0, 0, - "%s:TX-done", DRV_NAME); + "%s:TX-done", DRV_NAME); if (err) goto rel_txready; } -- cgit v1.1 From 9733bb8e9ce0078f55405ce470a62ec0a551fe99 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Mon, 25 May 2009 13:25:34 +0200 Subject: IXP4xx: Change QMgr function names to qmgr_stat_*_watermark and clean the comments. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa --- drivers/net/arm/ixp4xx_eth.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'drivers/net/arm') diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c index 672c962..b6d1881 100644 --- a/drivers/net/arm/ixp4xx_eth.c +++ b/drivers/net/arm/ixp4xx_eth.c @@ -513,8 +513,8 @@ static int eth_poll(struct napi_struct *napi, int budget) #endif napi_complete(napi); qmgr_enable_irq(rxq); - if (!qmgr_stat_nearly_empty(rxq) && - napi_reschedule(napi)) { /* really empty in fact */ + if (!qmgr_stat_below_low_watermark(rxq) && + napi_reschedule(napi)) { /* not empty again */ #if DEBUG_RX printk(KERN_DEBUG "%s: eth_poll" " napi_reschedule successed\n", @@ -631,10 +631,9 @@ static void eth_txdone_irq(void *unused) port->tx_buff_tab[n_desc] = NULL; } - /* really empty in fact */ - start = qmgr_stat_nearly_empty(port->plat->txreadyq); + start = qmgr_stat_below_low_watermark(port->plat->txreadyq); queue_put_desc(port->plat->txreadyq, phys, desc); - if (start) { + if (start) { /* TX-ready queue was empty */ #if DEBUG_TX printk(KERN_DEBUG "%s: eth_txdone_irq xmit ready\n", port->netdev->name); @@ -710,14 +709,14 @@ static int eth_xmit(struct sk_buff *skb, struct net_device *dev) queue_put_desc(TX_QUEUE(port->id), tx_desc_phys(port, n), desc); dev->trans_start = jiffies; - if (qmgr_stat_nearly_empty(txreadyq)) { /* really empty in fact */ + if (qmgr_stat_below_low_watermark(txreadyq)) { /* empty */ #if DEBUG_TX printk(KERN_DEBUG "%s: eth_xmit queue full\n", dev->name); #endif netif_stop_queue(dev); /* we could miss TX ready interrupt */ /* really empty in fact */ - if (!qmgr_stat_nearly_empty(txreadyq)) { + if (!qmgr_stat_below_low_watermark(txreadyq)) { #if DEBUG_TX printk(KERN_DEBUG "%s: eth_xmit ready again\n", dev->name); -- cgit v1.1