diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/bnx2.c | 87 | ||||
| -rw-r--r-- | drivers/net/bnx2.h | 2 |
2 files changed, 81 insertions, 8 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index 4fc9d1653cd..0120df47bbc 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -598,7 +598,7 @@ bnx2_alloc_mem(struct bnx2 *bp) for (i = 1; i < BNX2_MAX_MSIX_VEC; i++) { struct bnx2_napi *bnapi = &bp->bnx2_napi[i]; - bnapi->status_blk = (void *) + bnapi->status_blk_msix = (void *) ((unsigned long) bp->status_blk + BNX2_SBLK_MSIX_ALIGN_SIZE * i); bnapi->int_num = i << 24; @@ -2388,10 +2388,11 @@ bnx2_get_hw_tx_cons(struct bnx2_napi *bnapi) return cons; } -static void -bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi) +static int +bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget) { u16 hw_cons, sw_cons, sw_ring_cons; + int tx_pkt = 0; hw_cons = bnx2_get_hw_tx_cons(bnapi); sw_cons = bnapi->tx_cons; @@ -2442,6 +2443,9 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi) sw_cons = NEXT_TX_BD(sw_cons); dev_kfree_skb(skb); + tx_pkt++; + if (tx_pkt == budget) + break; hw_cons = bnx2_get_hw_tx_cons(bnapi); } @@ -2463,6 +2467,7 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi) netif_wake_queue(bp->dev); netif_tx_unlock(bp->dev); } + return tx_pkt; } static void @@ -2875,6 +2880,23 @@ bnx2_interrupt(int irq, void *dev_instance) return IRQ_HANDLED; } +static irqreturn_t +bnx2_tx_msix(int irq, void *dev_instance) +{ + struct net_device *dev = dev_instance; + struct bnx2 *bp = netdev_priv(dev); + struct bnx2_napi *bnapi = &bp->bnx2_napi[BNX2_TX_VEC]; + + prefetch(bnapi->status_blk_msix); + + /* Return here if interrupt is disabled. */ + if (unlikely(atomic_read(&bp->intr_sem) != 0)) + return IRQ_HANDLED; + + netif_rx_schedule(dev, &bnapi->napi); + return IRQ_HANDLED; +} + #define STATUS_ATTN_EVENTS (STATUS_ATTN_BITS_LINK_STATE | \ STATUS_ATTN_BITS_TIMER_ABORT) @@ -2895,6 +2917,29 @@ bnx2_has_work(struct bnx2_napi *bnapi) return 0; } +static int bnx2_tx_poll(struct napi_struct *napi, int budget) +{ + struct bnx2_napi *bnapi = container_of(napi, struct bnx2_napi, napi); + struct bnx2 *bp = bnapi->bp; + int work_done = 0; + struct status_block_msix *sblk = bnapi->status_blk_msix; + + do { + work_done += bnx2_tx_int(bp, bnapi, budget - work_done); + if (unlikely(work_done >= budget)) + return work_done; + + bnapi->last_status_idx = sblk->status_idx; + rmb(); + } while (bnx2_get_hw_tx_cons(bnapi) != bnapi->hw_tx_cons); + + netif_rx_complete(bp->dev, napi); + REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num | + BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | + bnapi->last_status_idx); + return work_done; +} + static int bnx2_poll_work(struct bnx2 *bp, struct bnx2_napi *bnapi, int work_done, int budget) { @@ -2916,7 +2961,7 @@ static int bnx2_poll_work(struct bnx2 *bp, struct bnx2_napi *bnapi, } if (bnx2_get_hw_tx_cons(bnapi) != bnapi->hw_tx_cons) - bnx2_tx_int(bp, bnapi); + bnx2_tx_int(bp, bnapi, 0); if (bnx2_get_hw_rx_cons(bnapi) != bnapi->rx_cons) work_done += bnx2_rx_int(bp, bnapi, budget - work_done); @@ -5399,10 +5444,35 @@ bnx2_free_irq(struct bnx2 *bp) static void bnx2_enable_msix(struct bnx2 *bp) { + int i, rc; + struct msix_entry msix_ent[BNX2_MAX_MSIX_VEC]; + bnx2_setup_msix_tbl(bp); REG_WR(bp, BNX2_PCI_MSIX_CONTROL, BNX2_MAX_MSIX_HW_VEC - 1); REG_WR(bp, BNX2_PCI_MSIX_TBL_OFF_BIR, BNX2_PCI_GRC_WINDOW2_BASE); REG_WR(bp, BNX2_PCI_MSIX_PBA_OFF_BIT, BNX2_PCI_GRC_WINDOW3_BASE); + + for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) { + msix_ent[i].entry = i; + msix_ent[i].vector = 0; + } + + rc = pci_enable_msix(bp->pdev, msix_ent, BNX2_MAX_MSIX_VEC); + if (rc != 0) + return; + + bp->irq_tbl[BNX2_BASE_VEC].handler = bnx2_msi_1shot; + bp->irq_tbl[BNX2_TX_VEC].handler = bnx2_tx_msix; + + strcpy(bp->irq_tbl[BNX2_BASE_VEC].name, bp->dev->name); + strcat(bp->irq_tbl[BNX2_BASE_VEC].name, "-base"); + strcpy(bp->irq_tbl[BNX2_TX_VEC].name, bp->dev->name); + strcat(bp->irq_tbl[BNX2_TX_VEC].name, "-tx"); + + bp->irq_nvecs = BNX2_MAX_MSIX_VEC; + bp->flags |= USING_MSIX_FLAG | ONE_SHOT_MSI_FLAG; + for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) + bp->irq_tbl[i].vector = msix_ent[i].vector; } static void @@ -5504,9 +5574,10 @@ bnx2_open(struct net_device *dev) bnx2_enable_int(bp); } } - if (bp->flags & USING_MSI_FLAG) { + if (bp->flags & USING_MSI_FLAG) printk(KERN_INFO PFX "%s: using MSI\n", dev->name); - } + else if (bp->flags & USING_MSIX_FLAG) + printk(KERN_INFO PFX "%s: using MSIX\n", dev->name); netif_start_queue(dev); @@ -5570,7 +5641,7 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) u32 len, vlan_tag_flags, last_frag, mss; u16 prod, ring_prod; int i; - struct bnx2_napi *bnapi = &bp->bnx2_napi[0]; + struct bnx2_napi *bnapi = &bp->bnx2_napi[bp->tx_vec]; if (unlikely(bnx2_tx_avail(bp, bnapi) < (skb_shinfo(skb)->nr_frags + 1))) { @@ -7253,6 +7324,8 @@ bnx2_init_napi(struct bnx2 *bp) bnapi->bp = bp; } netif_napi_add(bp->dev, &bp->bnx2_napi[0].napi, bnx2_poll, 64); + netif_napi_add(bp->dev, &bp->bnx2_napi[BNX2_TX_VEC].napi, bnx2_tx_poll, + 64); } static int __devinit diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h index 68fb5904f75..09bd665a3b9 100644 --- a/drivers/net/bnx2.h +++ b/drivers/net/bnx2.h @@ -6528,7 +6528,7 @@ struct flash_spec { }; #define BNX2_MAX_MSIX_HW_VEC 9 -#define BNX2_MAX_MSIX_VEC 1 +#define BNX2_MAX_MSIX_VEC 2 #define BNX2_BASE_VEC 0 #define BNX2_TX_VEC 1 #define BNX2_TX_INT_NUM (BNX2_TX_VEC << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT) |