diff options
Diffstat (limited to 'drivers/atm')
| -rw-r--r-- | drivers/atm/eni.c | 98 | ||||
| -rw-r--r-- | drivers/atm/eni.h | 5 |
2 files changed, 68 insertions, 35 deletions
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c index 485a11a6de96..6ff612d099c3 100644 --- a/drivers/atm/eni.c +++ b/drivers/atm/eni.c @@ -156,9 +156,6 @@ static int tx_complete = 0,dma_complete = 0,queued = 0,requeued = 0, static struct atm_dev *eni_boards = NULL; -static u32 *cpu_zeroes = NULL; /* aligned "magic" zeroes */ -static dma_addr_t zeroes; - /* Read/write registers on card */ #define eni_in(r) readl(eni_dev->reg+(r)*4) #define eni_out(v,r) writel((v),eni_dev->reg+(r)*4) @@ -1138,8 +1135,10 @@ DPRINTK("doing direct send\n"); /* @@@ well, this doesn't work anyway */ skb_shinfo(skb)->frags[i].page_offset, skb_frag_size(&skb_shinfo(skb)->frags[i])); } - if (skb->len & 3) - put_dma(tx->index,eni_dev->dma,&j,zeroes,4-(skb->len & 3)); + if (skb->len & 3) { + put_dma(tx->index, eni_dev->dma, &j, eni_dev->zero.dma, + 4 - (skb->len & 3)); + } /* JK for AAL5 trailer - AAL0 doesn't need it, but who cares ... */ eni_dev->dma[j++] = (((tx->tx_pos+size) & (tx->words-1)) << MID_DMA_COUNT_SHIFT) | (tx->index << MID_DMA_CHAN_SHIFT) | @@ -1728,6 +1727,7 @@ static int __devinit eni_do_init(struct atm_dev *dev) "mapping\n",dev->number); return error; } + eni_dev->ioaddr = base; eni_dev->base_diff = real_base - (unsigned long) base; /* id may not be present in ASIC Tonga boards - check this @@@ */ if (!eni_dev->asic) { @@ -1789,6 +1789,14 @@ unmap: goto out; } +static void eni_do_release(struct atm_dev *dev) +{ + struct eni_dev *ed = ENI_DEV(dev); + + dev->phy->stop(dev); + dev->phy = NULL; + iounmap(ed->ioaddr); +} static int __devinit eni_start(struct atm_dev *dev) { @@ -2220,48 +2228,60 @@ static const struct atmdev_ops ops = { static int __devinit eni_init_one(struct pci_dev *pci_dev, - const struct pci_device_id *ent) + const struct pci_device_id *ent) { struct atm_dev *dev; struct eni_dev *eni_dev; - int error = -ENOMEM; + struct eni_zero *zero; + int rc; + + rc = pci_enable_device(pci_dev); + if (rc < 0) + goto out; - DPRINTK("eni_init_one\n"); + rc = -ENOMEM; + eni_dev = kmalloc(sizeof(struct eni_dev), GFP_KERNEL); + if (!eni_dev) + goto err_disable; - if (pci_enable_device(pci_dev)) { - error = -EIO; - goto out0; - } + zero = &eni_dev->zero; + zero->addr = pci_alloc_consistent(pci_dev, ENI_ZEROES_SIZE, &zero->dma); + if (!zero->addr) + goto err_kfree; - eni_dev = kmalloc(sizeof(struct eni_dev),GFP_KERNEL); - if (!eni_dev) goto out0; - if (!cpu_zeroes) { - cpu_zeroes = pci_alloc_consistent(pci_dev,ENI_ZEROES_SIZE, - &zeroes); - if (!cpu_zeroes) goto out1; - } dev = atm_dev_register(DEV_LABEL, &pci_dev->dev, &ops, -1, NULL); - if (!dev) goto out2; + if (!dev) + goto err_free_consistent; + + dev->dev_data = eni_dev; pci_set_drvdata(pci_dev, dev); eni_dev->pci_dev = pci_dev; - dev->dev_data = eni_dev; eni_dev->asic = ent->driver_data; - error = eni_do_init(dev); - if (error) goto out3; - error = eni_start(dev); - if (error) goto out3; + + rc = eni_do_init(dev); + if (rc < 0) + goto err_unregister; + + rc = eni_start(dev); + if (rc < 0) + goto err_eni_release; + eni_dev->more = eni_boards; eni_boards = dev; - return 0; -out3: +out: + return rc; + +err_eni_release: + eni_do_release(dev); +err_unregister: atm_dev_deregister(dev); -out2: - pci_free_consistent(eni_dev->pci_dev,ENI_ZEROES_SIZE,cpu_zeroes,zeroes); - cpu_zeroes = NULL; -out1: +err_free_consistent: + pci_free_consistent(pci_dev, ENI_ZEROES_SIZE, zero->addr, zero->dma); +err_kfree: kfree(eni_dev); -out0: - return error; +err_disable: + pci_disable_device(pci_dev); + goto out; } @@ -2273,9 +2293,17 @@ static struct pci_device_id eni_pci_tbl[] = { MODULE_DEVICE_TABLE(pci,eni_pci_tbl); -static void __devexit eni_remove_one(struct pci_dev *pci_dev) +static void __devexit eni_remove_one(struct pci_dev *pdev) { - /* grrr */ + struct atm_dev *dev = pci_get_drvdata(pdev); + struct eni_dev *ed = ENI_DEV(dev); + struct eni_zero *zero = &ed->zero; + + eni_do_release(dev); + atm_dev_deregister(dev); + pci_free_consistent(pdev, ENI_ZEROES_SIZE, zero->addr, zero->dma); + kfree(ed); + pci_disable_device(pdev); } diff --git a/drivers/atm/eni.h b/drivers/atm/eni.h index dc9a62cc2605..565e53a5cb78 100644 --- a/drivers/atm/eni.h +++ b/drivers/atm/eni.h @@ -72,6 +72,7 @@ struct eni_dev { u32 events; /* pending events */ /*-------------------------------- base pointers into Midway address space */ + void __iomem *ioaddr; void __iomem *phy; /* PHY interface chip registers */ void __iomem *reg; /* register base */ void __iomem *ram; /* RAM base */ @@ -86,6 +87,10 @@ struct eni_dev { wait_queue_head_t tx_wait; /* for close */ int tx_bw; /* remaining bandwidth */ u32 dma[TX_DMA_BUF*2]; /* DMA request scratch area */ + struct eni_zero { /* aligned "magic" zeroes */ + u32 *addr; + dma_addr_t dma; + } zero; int tx_mult; /* buffer size multiplier (percent) */ /*-------------------------------- RX part */ u32 serv_read; /* host service read index */ |