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| author | Krzysztof Hałasa <khc@pm.waw.pl> | 2009-05-24 01:14:10 +0400 |
|---|---|---|
| committer | Krzysztof Hałasa <khc@pm.waw.pl> | 2009-05-24 01:14:10 +0400 |
| commit | 6a68afe3a2971953e218e509b16eae0ece43f9ac (patch) | |
| tree | 959bdf3adb548365ae7cc07204d1c323e6820036 /drivers/net/arm | |
| parent | a6a9fb857b5599b3cefef5576967389c1c43eb4c (diff) | |
| download | linux-6a68afe3a2971953e218e509b16eae0ece43f9ac.tar.xz | |
IXP4xx: Ethernet and WAN drivers now support "high" hardware queues.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Diffstat (limited to 'drivers/net/arm')
| -rw-r--r-- | drivers/net/arm/ixp4xx_eth.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c index a740053d3af3..d304c731c470 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); |