Commit f3259377 authored by Heiner Kallweit's avatar Heiner Kallweit Committed by David S. Miller
Browse files

r8169: check that Realtek PHY driver module is loaded



Some users complained about problems with r8169 and it turned out that
the generic PHY driver was used instead instead of the dedicated one.
In all cases reason was that r8169.ko was in initramfs, but realtek.ko
not. Manually adding realtek.ko to initramfs fixed the issues.
Root cause seems to be that tools like dracut and genkernel don't
consider softdeps. Add a check for loaded Realtek PHY driver module
and provide the user with a hint if it's not loaded.
Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 02477432
...@@ -6825,6 +6825,15 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) ...@@ -6825,6 +6825,15 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
int chipset, region; int chipset, region;
int jumbo_max, rc; int jumbo_max, rc;
/* Some tools for creating an initramfs don't consider softdeps, then
* r8169.ko may be in initramfs, but realtek.ko not. Then the generic
* PHY driver is used that doesn't work with most chip versions.
*/
if (!driver_find("RTL8201CP Ethernet", &mdio_bus_type)) {
dev_err(&pdev->dev, "realtek.ko not loaded, maybe it needs to be added to initramfs?\n");
return -ENOENT;
}
dev = devm_alloc_etherdev(&pdev->dev, sizeof (*tp)); dev = devm_alloc_etherdev(&pdev->dev, sizeof (*tp));
if (!dev) if (!dev)
return -ENOMEM; return -ENOMEM;
......
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