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typhoon: Need non-vmalloc memory to DMA firmware to the card.

Browse source 
request_firmware() gives vmalloc'd memory, which is not suitable
for pci_map_single() and friends.

Use a kmalloc()'d copy of the firmware for this DMA operation.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2009-03-01 20:24:32 -08:00
parent e8e26350f1
commit d517c4a1da
1 changed files with 20 additions and 7 deletions
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27
drivers/net/typhoon.c
View file

@ -1347,6 +1347,7 @@ typhoon_init_rings(struct typhoon *tp)
}
static const struct firmware *typhoon_fw;
static u8 *typhoon_fw_image;
static int
typhoon_request_firmware(struct typhoon *tp)
@ -1367,12 +1368,22 @@ typhoon_request_firmware(struct typhoon *tp)
memcmp(typhoon_fw->data, "TYPHOON", 8)) {
printk(KERN_ERR "%s: Invalid firmware image\n",
tp->name);
release_firmware(typhoon_fw);
typhoon_fw = NULL;
return -EINVAL;
err = -EINVAL;
goto out_err;
}
typhoon_fw_image = kmalloc(typhoon_fw->size, GFP_KERNEL);
if (!typhoon_fw_image) {
err = -ENOMEM;
goto out_err;
}
return 0;
out_err:
release_firmware(typhoon_fw);
typhoon_fw = NULL;
return err;
}
static int
@ -1394,11 +1405,11 @@ typhoon_download_firmware(struct typhoon *tp)
int i;
int err;
image_data = typhoon_fw->data;
image_data = typhoon_fw_image;
fHdr = (struct typhoon_file_header *) image_data;
err = -ENOMEM;
image_dma = pci_map_single(pdev, (u8 *) typhoon_fw->data,
image_dma = pci_map_single(pdev, (u8 *) image_data,
typhoon_fw->size, PCI_DMA_TODEVICE);
if (pci_dma_mapping_error(pdev, image_dma)) {
printk(KERN_ERR "%s: no DMA mem for firmware\n", tp->name);
@ -1469,7 +1480,7 @@ typhoon_download_firmware(struct typhoon *tp)
iowrite32(load_addr,
ioaddr + TYPHOON_REG_BOOT_DEST_ADDR);
iowrite32(0, ioaddr + TYPHOON_REG_BOOT_DATA_HI);
iowrite32(image_dma + (image_data - typhoon_fw->data),
iowrite32(image_dma + (image_data - typhoon_fw_image),
ioaddr + TYPHOON_REG_BOOT_DATA_LO);
typhoon_post_pci_writes(ioaddr);
iowrite32(TYPHOON_BOOTCMD_SEG_AVAILABLE,
@ -2639,8 +2650,10 @@ typhoon_init(void)
static void __exit
typhoon_cleanup(void)
{
if (typhoon_fw)
if (typhoon_fw) {
kfree(typhoon_fw_image);
release_firmware(typhoon_fw);
}
pci_unregister_driver(&typhoon_driver);
}