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Date: Fri, 6 Apr 2012 12:06:43 +0200
From: Francois Romieu <romieu@...zoreil.com>
To: netdev@...r.kernel.org
Cc: "David Miller" <davem@...emloft.net>
Subject: [PATCH net-next #2 29/39] 8139too: dev->{base_addr, irq} removal.
Signed-off-by: Francois Romieu <romieu@...zoreil.com>
---
drivers/net/ethernet/realtek/8139too.c | 136 +++++++++++++-------------------
1 files changed, 56 insertions(+), 80 deletions(-)
diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c
index df7fd8d..03df076 100644
--- a/drivers/net/ethernet/realtek/8139too.c
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -148,9 +148,9 @@ static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
/* Whether to use MMIO or PIO. Default to MMIO. */
#ifdef CONFIG_8139TOO_PIO
-static int use_io = 1;
+static bool use_io = true;
#else
-static int use_io = 0;
+static bool use_io = false;
#endif
/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
@@ -620,7 +620,7 @@ MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
-module_param(use_io, int, 0);
+module_param(use_io, bool, 0);
MODULE_PARM_DESC(use_io, "Force use of I/O access mode. 0=MMIO 1=PIO");
module_param(multicast_filter_limit, int, 0);
module_param_array(media, int, NULL, 0);
@@ -750,15 +750,22 @@ static void rtl8139_chip_reset (void __iomem *ioaddr)
static __devinit struct net_device * rtl8139_init_board (struct pci_dev *pdev)
{
+ struct device *d = &pdev->dev;
void __iomem *ioaddr;
struct net_device *dev;
struct rtl8139_private *tp;
u8 tmp8;
int rc, disable_dev_on_err = 0;
- unsigned int i;
- unsigned long pio_start, pio_end, pio_flags, pio_len;
- unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
+ unsigned int i, bar;
+ unsigned long io_len;
u32 version;
+ static const struct {
+ unsigned long mask;
+ char *type;
+ } res[] = {
+ { IORESOURCE_IO, "PIO" },
+ { IORESOURCE_MEM, "MMIO" }
+ };
assert (pdev != NULL);
@@ -777,78 +784,45 @@ static __devinit struct net_device * rtl8139_init_board (struct pci_dev *pdev)
if (rc)
goto err_out;
- pio_start = pci_resource_start (pdev, 0);
- pio_end = pci_resource_end (pdev, 0);
- pio_flags = pci_resource_flags (pdev, 0);
- pio_len = pci_resource_len (pdev, 0);
-
- mmio_start = pci_resource_start (pdev, 1);
- mmio_end = pci_resource_end (pdev, 1);
- mmio_flags = pci_resource_flags (pdev, 1);
- mmio_len = pci_resource_len (pdev, 1);
-
- /* set this immediately, we need to know before
- * we talk to the chip directly */
- pr_debug("PIO region size == 0x%02lX\n", pio_len);
- pr_debug("MMIO region size == 0x%02lX\n", mmio_len);
-
-retry:
- if (use_io) {
- /* make sure PCI base addr 0 is PIO */
- if (!(pio_flags & IORESOURCE_IO)) {
- dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n");
- rc = -ENODEV;
- goto err_out;
- }
- /* check for weird/broken PCI region reporting */
- if (pio_len < RTL_MIN_IO_SIZE) {
- dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n");
- rc = -ENODEV;
- goto err_out;
- }
- } else {
- /* make sure PCI base addr 1 is MMIO */
- if (!(mmio_flags & IORESOURCE_MEM)) {
- dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n");
- rc = -ENODEV;
- goto err_out;
- }
- if (mmio_len < RTL_MIN_IO_SIZE) {
- dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n");
- rc = -ENODEV;
- goto err_out;
- }
- }
-
rc = pci_request_regions (pdev, DRV_NAME);
if (rc)
goto err_out;
disable_dev_on_err = 1;
- /* enable PCI bus-mastering */
pci_set_master (pdev);
- if (use_io) {
- ioaddr = pci_iomap(pdev, 0, 0);
- if (!ioaddr) {
- dev_err(&pdev->dev, "cannot map PIO, aborting\n");
- rc = -EIO;
- goto err_out;
- }
- dev->base_addr = pio_start;
- tp->regs_len = pio_len;
- } else {
- /* ioremap MMIO region */
- ioaddr = pci_iomap(pdev, 1, 0);
- if (ioaddr == NULL) {
- dev_err(&pdev->dev, "cannot remap MMIO, trying PIO\n");
- pci_release_regions(pdev);
- use_io = 1;
+retry:
+ /* PIO bar register comes first. */
+ bar = !use_io;
+
+ io_len = pci_resource_len(pdev, bar);
+
+ dev_dbg(d, "%s region size = 0x%02lX\n", res[bar].type, io_len);
+
+ if (!(pci_resource_flags(pdev, bar) & res[bar].mask)) {
+ dev_err(d, "region #%d not a %s resource, aborting\n", bar,
+ res[bar].type);
+ rc = -ENODEV;
+ goto err_out;
+ }
+ if (io_len < RTL_MIN_IO_SIZE) {
+ dev_err(d, "Invalid PCI %s region size(s), aborting\n",
+ res[bar].type);
+ rc = -ENODEV;
+ goto err_out;
+ }
+
+ ioaddr = pci_iomap(pdev, bar, 0);
+ if (!ioaddr) {
+ dev_err(d, "cannot map %s\n", res[bar].type);
+ if (!use_io) {
+ use_io = true;
goto retry;
}
- dev->base_addr = (long) ioaddr;
- tp->regs_len = mmio_len;
+ rc = -ENODEV;
+ goto err_out;
}
+ tp->regs_len = io_len;
tp->mmio_addr = ioaddr;
/* Bring old chips out of low-power mode. */
@@ -1035,8 +1009,6 @@ static int __devinit rtl8139_init_one (struct pci_dev *pdev,
dev->hw_features |= NETIF_F_RXALL;
dev->hw_features |= NETIF_F_RXFCS;
- dev->irq = pdev->irq;
-
/* tp zeroed and aligned in alloc_etherdev */
tp = netdev_priv(dev);
@@ -1062,9 +1034,9 @@ static int __devinit rtl8139_init_one (struct pci_dev *pdev,
pci_set_drvdata (pdev, dev);
- netdev_info(dev, "%s at 0x%lx, %pM, IRQ %d\n",
+ netdev_info(dev, "%s at 0x%p, %pM, IRQ %d\n",
board_info[ent->driver_data].name,
- dev->base_addr, dev->dev_addr, dev->irq);
+ ioaddr, dev->dev_addr, pdev->irq);
netdev_dbg(dev, "Identified 8139 chip type '%s'\n",
rtl_chip_info[tp->chipset].name);
@@ -1339,10 +1311,11 @@ static void mdio_write (struct net_device *dev, int phy_id, int location,
static int rtl8139_open (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- int retval;
void __iomem *ioaddr = tp->mmio_addr;
+ const int irq = tp->pci_dev->irq;
+ int retval;
- retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev);
+ retval = request_irq(irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev);
if (retval)
return retval;
@@ -1351,7 +1324,7 @@ static int rtl8139_open (struct net_device *dev)
tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
&tp->rx_ring_dma, GFP_KERNEL);
if (tp->tx_bufs == NULL || tp->rx_ring == NULL) {
- free_irq(dev->irq, dev);
+ free_irq(irq, dev);
if (tp->tx_bufs)
dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
@@ -1377,7 +1350,7 @@ static int rtl8139_open (struct net_device *dev)
"%s() ioaddr %#llx IRQ %d GP Pins %02x %s-duplex\n",
__func__,
(unsigned long long)pci_resource_start (tp->pci_dev, 1),
- dev->irq, RTL_R8 (MediaStatus),
+ irq, RTL_R8 (MediaStatus),
tp->mii.full_duplex ? "full" : "half");
rtl8139_start_thread(tp);
@@ -2240,9 +2213,12 @@ static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance)
*/
static void rtl8139_poll_controller(struct net_device *dev)
{
- disable_irq(dev->irq);
- rtl8139_interrupt(dev->irq, dev);
- enable_irq(dev->irq);
+ struct rtl8139_private *tp = netdev_priv(dev);
+ const int irq = tp->pci_dev->irq;
+
+ disable_irq(irq);
+ rtl8139_interrupt(irq, dev);
+ enable_irq(irq);
}
#endif
@@ -2295,7 +2271,7 @@ static int rtl8139_close (struct net_device *dev)
spin_unlock_irqrestore (&tp->lock, flags);
- free_irq (dev->irq, dev);
+ free_irq(tp->pci_dev->irq, dev);
rtl8139_tx_clear (tp);
--
1.7.7.6
--
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