diff options
Diffstat (limited to 'drivers/net/via-velocity.c')
| -rw-r--r-- | drivers/net/via-velocity.c | 49 |
1 files changed, 24 insertions, 25 deletions
diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c index 4ceb441..317aa34 100644 --- a/drivers/net/via-velocity.c +++ b/drivers/net/via-velocity.c @@ -1877,13 +1877,12 @@ static void velocity_error(struct velocity_info *vptr, int status) /** * tx_srv - transmit interrupt service * @vptr; Velocity - * @status: * * Scan the queues looking for transmitted packets that * we can complete and clean up. Update any statistics as * necessary/ */ -static int velocity_tx_srv(struct velocity_info *vptr, u32 status) +static int velocity_tx_srv(struct velocity_info *vptr) { struct tx_desc *td; int qnum; @@ -2090,14 +2089,12 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx) /** * velocity_rx_srv - service RX interrupt * @vptr: velocity - * @status: adapter status (unused) * * Walk the receive ring of the velocity adapter and remove * any received packets from the receive queue. Hand the ring * slots back to the adapter for reuse. */ -static int velocity_rx_srv(struct velocity_info *vptr, int status, - int budget_left) +static int velocity_rx_srv(struct velocity_info *vptr, int budget_left) { struct net_device_stats *stats = &vptr->dev->stats; int rd_curr = vptr->rx.curr; @@ -2151,32 +2148,24 @@ static int velocity_poll(struct napi_struct *napi, int budget) struct velocity_info *vptr = container_of(napi, struct velocity_info, napi); unsigned int rx_done; - u32 isr_status; - - spin_lock(&vptr->lock); - isr_status = mac_read_isr(vptr->mac_regs); - - /* Ack the interrupt */ - mac_write_isr(vptr->mac_regs, isr_status); - if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) - velocity_error(vptr, isr_status); + unsigned long flags; + spin_lock_irqsave(&vptr->lock, flags); /* * Do rx and tx twice for performance (taken from the VIA * out-of-tree driver). */ - rx_done = velocity_rx_srv(vptr, isr_status, budget / 2); - velocity_tx_srv(vptr, isr_status); - rx_done += velocity_rx_srv(vptr, isr_status, budget - rx_done); - velocity_tx_srv(vptr, isr_status); - - spin_unlock(&vptr->lock); + rx_done = velocity_rx_srv(vptr, budget / 2); + velocity_tx_srv(vptr); + rx_done += velocity_rx_srv(vptr, budget - rx_done); + velocity_tx_srv(vptr); /* If budget not fully consumed, exit the polling mode */ if (rx_done < budget) { napi_complete(napi); mac_enable_int(vptr->mac_regs); } + spin_unlock_irqrestore(&vptr->lock, flags); return rx_done; } @@ -2206,10 +2195,17 @@ static irqreturn_t velocity_intr(int irq, void *dev_instance) return IRQ_NONE; } + /* Ack the interrupt */ + mac_write_isr(vptr->mac_regs, isr_status); + if (likely(napi_schedule_prep(&vptr->napi))) { mac_disable_int(vptr->mac_regs); __napi_schedule(&vptr->napi); } + + if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) + velocity_error(vptr, isr_status); + spin_unlock(&vptr->lock); return IRQ_HANDLED; @@ -2237,8 +2233,6 @@ static int velocity_open(struct net_device *dev) /* Ensure chip is running */ pci_set_power_state(vptr->pdev, PCI_D0); - velocity_give_many_rx_descs(vptr); - velocity_init_registers(vptr, VELOCITY_INIT_COLD); ret = request_irq(vptr->pdev->irq, velocity_intr, IRQF_SHARED, @@ -2250,6 +2244,8 @@ static int velocity_open(struct net_device *dev) goto out; } + velocity_give_many_rx_descs(vptr); + mac_enable_int(vptr->mac_regs); netif_start_queue(dev); napi_enable(&vptr->napi); @@ -2339,10 +2335,10 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu) dev->mtu = new_mtu; - velocity_give_many_rx_descs(vptr); - velocity_init_registers(vptr, VELOCITY_INIT_COLD); + velocity_give_many_rx_descs(vptr); + mac_enable_int(vptr->mac_regs); netif_start_queue(dev); @@ -3100,7 +3096,7 @@ static int velocity_resume(struct pci_dev *pdev) velocity_init_registers(vptr, VELOCITY_INIT_WOL); mac_disable_int(vptr->mac_regs); - velocity_tx_srv(vptr, 0); + velocity_tx_srv(vptr); for (i = 0; i < vptr->tx.numq; i++) { if (vptr->tx.used[i]) @@ -3344,6 +3340,7 @@ static int velocity_set_coalesce(struct net_device *dev, { struct velocity_info *vptr = netdev_priv(dev); int max_us = 0x3f * 64; + unsigned long flags; /* 6 bits of */ if (ecmd->tx_coalesce_usecs > max_us) @@ -3365,6 +3362,7 @@ static int velocity_set_coalesce(struct net_device *dev, ecmd->tx_coalesce_usecs); /* Setup the interrupt suppression and queue timers */ + spin_lock_irqsave(&vptr->lock, flags); mac_disable_int(vptr->mac_regs); setup_adaptive_interrupts(vptr); setup_queue_timers(vptr); @@ -3372,6 +3370,7 @@ static int velocity_set_coalesce(struct net_device *dev, mac_write_int_mask(vptr->int_mask, vptr->mac_regs); mac_clear_isr(vptr->mac_regs); mac_enable_int(vptr->mac_regs); + spin_unlock_irqrestore(&vptr->lock, flags); return 0; } |
