From: Matt Carlson Date: Fri, 28 Aug 2009 14:01:37 +0000 (+0000) Subject: tg3: Move napi to per-int struct X-Git-Tag: firefly_0821_release~12983^2~228 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8ef0442f98850333196bc56415192e52a6267878;p=firefly-linux-kernel-4.4.55.git tg3: Move napi to per-int struct This patch creates a per-interrupt data structure, moves the napi member over, and creates a tg3 pointer back to the device structure. Signed-off-by: Matt Carlson Signed-off-by: David S. Miller --- diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 37a462986db2..b308c409e474 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -687,7 +687,7 @@ static void tg3_restart_ints(struct tg3 *tp) static inline void tg3_netif_stop(struct tg3 *tp) { tp->dev->trans_start = jiffies; /* prevent tx timeout */ - napi_disable(&tp->napi); + napi_disable(&tp->napi[0].napi); netif_tx_disable(tp->dev); } @@ -698,7 +698,7 @@ static inline void tg3_netif_start(struct tg3 *tp) * so long as all callers are assured to have free tx slots * (such as after tg3_init_hw) */ - napi_enable(&tp->napi); + napi_enable(&tp->napi[0].napi); tp->hw_status->status |= SD_STATUS_UPDATED; tg3_enable_ints(tp); } @@ -4447,13 +4447,6 @@ static void tg3_recycle_rx(struct tg3 *tp, u32 opaque_key, src_map->skb = NULL; } -#if TG3_VLAN_TAG_USED -static int tg3_vlan_rx(struct tg3 *tp, struct sk_buff *skb, u16 vlan_tag) -{ - return vlan_gro_receive(&tp->napi, tp->vlgrp, vlan_tag, skb); -} -#endif - /* The RX ring scheme is composed of multiple rings which post fresh * buffers to the chip, and one special ring the chip uses to report * status back to the host. @@ -4591,11 +4584,11 @@ static int tg3_rx(struct tg3 *tp, int budget) #if TG3_VLAN_TAG_USED if (tp->vlgrp != NULL && desc->type_flags & RXD_FLAG_VLAN) { - tg3_vlan_rx(tp, skb, - desc->err_vlan & RXD_VLAN_MASK); + vlan_gro_receive(&tp->napi[0].napi, tp->vlgrp, + desc->err_vlan & RXD_VLAN_MASK, skb); } else #endif - napi_gro_receive(&tp->napi, skb); + napi_gro_receive(&tp->napi[0].napi, skb); received++; budget--; @@ -4686,7 +4679,8 @@ static int tg3_poll_work(struct tg3 *tp, int work_done, int budget) static int tg3_poll(struct napi_struct *napi, int budget) { - struct tg3 *tp = container_of(napi, struct tg3, napi); + struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi); + struct tg3 *tp = tnapi->tp; int work_done = 0; struct tg3_hw_status *sblk = tp->hw_status; @@ -4770,7 +4764,7 @@ static irqreturn_t tg3_msi_1shot(int irq, void *dev_id) prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]); if (likely(!tg3_irq_sync(tp))) - napi_schedule(&tp->napi); + napi_schedule(&tp->napi[0].napi); return IRQ_HANDLED; } @@ -4795,7 +4789,7 @@ static irqreturn_t tg3_msi(int irq, void *dev_id) */ tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001); if (likely(!tg3_irq_sync(tp))) - napi_schedule(&tp->napi); + napi_schedule(&tp->napi[0].napi); return IRQ_RETVAL(1); } @@ -4837,7 +4831,7 @@ static irqreturn_t tg3_interrupt(int irq, void *dev_id) sblk->status &= ~SD_STATUS_UPDATED; if (likely(tg3_has_work(tp))) { prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]); - napi_schedule(&tp->napi); + napi_schedule(&tp->napi[0].napi); } else { /* No work, shared interrupt perhaps? re-enable * interrupts, and flush that PCI write @@ -4895,7 +4889,7 @@ static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id) prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]); - napi_schedule(&tp->napi); + napi_schedule(&tp->napi[0].napi); out: return IRQ_RETVAL(handled); @@ -4936,7 +4930,7 @@ static int tg3_restart_hw(struct tg3 *tp, int reset_phy) tg3_full_unlock(tp); del_timer_sync(&tp->timer); tp->irq_sync = 0; - napi_enable(&tp->napi); + napi_enable(&tp->napi[0].napi); dev_close(tp->dev); tg3_full_lock(tp, 0); } @@ -7935,7 +7929,7 @@ static int tg3_open(struct net_device *dev) tg3_ints_init(tp); - napi_enable(&tp->napi); + napi_enable(&tp->napi[0].napi); err = tg3_request_irq(tp); @@ -8011,7 +8005,7 @@ err_out2: free_irq(tp->pdev->irq, dev); err_out1: - napi_disable(&tp->napi); + napi_disable(&tp->napi[0].napi); tg3_ints_fini(tp); tg3_free_consistent(tp); return err; @@ -8252,7 +8246,7 @@ static int tg3_close(struct net_device *dev) { struct tg3 *tp = netdev_priv(dev); - napi_disable(&tp->napi); + napi_disable(&tp->napi[0].napi); cancel_work_sync(&tp->reset_task); netif_stop_queue(dev); @@ -13396,7 +13390,8 @@ static int __devinit tg3_init_one(struct pci_dev *pdev, tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING; tp->tx_pending = TG3_DEF_TX_RING_PENDING; - netif_napi_add(dev, &tp->napi, tg3_poll, 64); + tp->napi[0].tp = tp; + netif_napi_add(dev, &tp->napi[0].napi, tg3_poll, 64); dev->ethtool_ops = &tg3_ethtool_ops; dev->watchdog_timeo = TG3_TX_TIMEOUT; dev->irq = pdev->irq; diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index 982171f293fd..aff3f046c907 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -2487,6 +2487,13 @@ struct tg3_rx_prodring_set { dma_addr_t rx_jmb_mapping; }; +#define TG3_IRQ_MAX_VECS 1 + +struct tg3_napi { + struct napi_struct napi ____cacheline_aligned; + struct tg3 *tp; +}; + struct tg3 { /* begin "general, frequently-used members" cacheline section */ @@ -2558,7 +2565,7 @@ struct tg3 { dma_addr_t tx_desc_mapping; /* begin "rx thread" cacheline section */ - struct napi_struct napi; + struct tg3_napi napi[TG3_IRQ_MAX_VECS]; void (*write32_rx_mbox) (struct tg3 *, u32, u32); u32 rx_rcb_ptr;