diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/net/chelsio/cxgb2.c | 2 | ||||
| -rw-r--r-- | drivers/net/chelsio/sge.c | 70 |
3 files changed, 5 insertions, 75 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 4675c1bd6fb..50ca1cf1271 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2378,14 +2378,6 @@ config CHELSIO_T1_1G Enables support for Chelsio's gigabit Ethernet PCI cards. If you are using only 10G cards say 'N' here. -config CHELSIO_T1_NAPI - bool "Use Rx Polling (NAPI)" - depends on CHELSIO_T1 - default y - help - NAPI is a driver API designed to reduce CPU and interrupt load - when the driver is receiving lots of packets from the card. - config CHELSIO_T3 tristate "Chelsio Communications T3 10Gb Ethernet support" depends on PCI && INET diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c index a509337eab2..638c9a27a7a 100644 --- a/drivers/net/chelsio/cxgb2.c +++ b/drivers/net/chelsio/cxgb2.c @@ -1153,9 +1153,7 @@ static int __devinit init_one(struct pci_dev *pdev, #ifdef CONFIG_NET_POLL_CONTROLLER netdev->poll_controller = t1_netpoll; #endif -#ifdef CONFIG_CHELSIO_T1_NAPI netif_napi_add(netdev, &adapter->napi, t1_poll, 64); -#endif SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops); } diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c index 8a7efd38e95..d6c7d2aa761 100644 --- a/drivers/net/chelsio/sge.c +++ b/drivers/net/chelsio/sge.c @@ -1396,20 +1396,10 @@ static void sge_rx(struct sge *sge, struct freelQ *fl, unsigned int len) if (unlikely(adapter->vlan_grp && p->vlan_valid)) { st->vlan_xtract++; -#ifdef CONFIG_CHELSIO_T1_NAPI - vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, - ntohs(p->vlan)); -#else - vlan_hwaccel_rx(skb, adapter->vlan_grp, - ntohs(p->vlan)); -#endif - } else { -#ifdef CONFIG_CHELSIO_T1_NAPI + vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, + ntohs(p->vlan)); + } else netif_receive_skb(skb); -#else - netif_rx(skb); -#endif - } } /* @@ -1568,7 +1558,6 @@ static inline int responses_pending(const struct adapter *adapter) return (e->GenerationBit == Q->genbit); } -#ifdef CONFIG_CHELSIO_T1_NAPI /* * A simpler version of process_responses() that handles only pure (i.e., * non data-carrying) responses. Such respones are too light-weight to justify @@ -1636,9 +1625,6 @@ int t1_poll(struct napi_struct *napi, int budget) return work_done; } -/* - * NAPI version of the main interrupt handler. - */ irqreturn_t t1_interrupt(int irq, void *data) { struct adapter *adapter = data; @@ -1656,7 +1642,8 @@ irqreturn_t t1_interrupt(int irq, void *data) else { /* no data, no NAPI needed */ writel(sge->respQ.cidx, adapter->regs + A_SG_SLEEPING); - napi_enable(&adapter->napi); /* undo schedule_prep */ + /* undo schedule_prep */ + napi_enable(&adapter->napi); } } return IRQ_HANDLED; @@ -1672,53 +1659,6 @@ irqreturn_t t1_interrupt(int irq, void *data) return IRQ_RETVAL(handled != 0); } -#else -/* - * Main interrupt handler, optimized assuming that we took a 'DATA' - * interrupt. - * - * 1. Clear the interrupt - * 2. Loop while we find valid descriptors and process them; accumulate - * information that can be processed after the loop - * 3. Tell the SGE at which index we stopped processing descriptors - * 4. Bookkeeping; free TX buffers, ring doorbell if there are any - * outstanding TX buffers waiting, replenish RX buffers, potentially - * reenable upper layers if they were turned off due to lack of TX - * resources which are available again. - * 5. If we took an interrupt, but no valid respQ descriptors was found we - * let the slow_intr_handler run and do error handling. - */ -irqreturn_t t1_interrupt(int irq, void *cookie) -{ - int work_done; - struct adapter *adapter = cookie; - struct respQ *Q = &adapter->sge->respQ; - - spin_lock(&adapter->async_lock); - - writel(F_PL_INTR_SGE_DATA, adapter->regs + A_PL_CAUSE); - - if (likely(responses_pending(adapter))) - work_done = process_responses(adapter, -1); - else - work_done = t1_slow_intr_handler(adapter); - - /* - * The unconditional clearing of the PL_CAUSE above may have raced - * with DMA completion and the corresponding generation of a response - * to cause us to miss the resulting data interrupt. The next write - * is also unconditional to recover the missed interrupt and render - * this race harmless. - */ - writel(Q->cidx, adapter->regs + A_SG_SLEEPING); - - if (!work_done) - adapter->sge->stats.unhandled_irqs++; - spin_unlock(&adapter->async_lock); - return IRQ_RETVAL(work_done != 0); -} -#endif - /* * Enqueues the sk_buff onto the cmdQ[qid] and has hardware fetch it. * |