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authorDavid Woodhouse <David.Woodhouse@intel.com>2009-03-17 14:59:34 +0000
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-03-17 14:59:34 +0000
commit97d759d3e86f9c7ced094352838e7e4d1cf8cddf (patch)
tree86e5d35322c8f9a90c5b6c783b0950148e2216a0 /drivers/atm/solos-pci.c
parentf87b2ed225c002ea1b1b9994c6608d8b202f865e (diff)
solos: Reset device on unload, free pending skbs
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/atm/solos-pci.c')
-rw-r--r--drivers/atm/solos-pci.c30
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index eef920a9c448..1ff730497217 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -1206,10 +1206,28 @@ static void atm_remove(struct solos_card *card)
for (i = 0; i < card->nr_ports; i++) {
if (card->atmdev[i]) {
+ struct sk_buff *skb;
+
dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group);
atm_dev_deregister(card->atmdev[i]);
+
+ skb = card->rx_skb[i];
+ if (skb) {
+ pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
+ RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(skb);
+ }
+ skb = card->tx_skb[i];
+ if (skb) {
+ pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
+ skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb(skb);
+ }
+ while ((skb = skb_dequeue(&card->tx_queue[i])))
+ dev_kfree_skb(skb);
+
}
}
}
@@ -1217,13 +1235,23 @@ static void atm_remove(struct solos_card *card)
static void fpga_remove(struct pci_dev *dev)
{
struct solos_card *card = pci_get_drvdata(dev);
+
+ /* Disable IRQs */
+ iowrite32(0, card->config_regs + IRQ_EN_ADDR);
+
+ /* Reset FPGA */
+ iowrite32(1, card->config_regs + FPGA_MODE);
+ (void)ioread32(card->config_regs + FPGA_MODE);
atm_remove(card);
- iowrite32(0, card->config_regs + IRQ_EN_ADDR);
free_irq(dev->irq, card);
tasklet_kill(&card->tlet);
+ /* Release device from reset */
+ iowrite32(0, card->config_regs + FPGA_MODE);
+ (void)ioread32(card->config_regs + FPGA_MODE);
+
pci_iounmap(dev, card->buffers);
pci_iounmap(dev, card->config_regs);