Messages in this thread |  | | From | "Hen, Shmulik" <> | Subject | RE: find struct pci_dev from struct net_device | Date | Thu, 13 Sep 2001 12:22:47 +0300 |
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Take the value of dev->base_addr, mask it's lowest 4 bits, do a scan of all PCI net devices and in each PCI device try to match to each of the 6 address regs:
struct pci_dev* find_pci_device_by_baseddr(unsigned long base_addr) { struct pci_dev *pcid = NULL; unsigned long reg; int i;
base_addr &= ~(0x0000000F);
while ((pcid = pci_find_class(PCI_CLASS_NETWORK_ETHERNET << 8, pcid))) { for (i=0; i<6; i++) { reg = pci_resource_start(pcid,i); reg &= ~(0x0000000F); if (reg == base_addr) { return pcid; } } }
return NULL; } -----Original Message----- From: Sebastian Heidl [mailto:heidl@zib.de] Sent: Wednesday, September 12, 2001 3:53 PM To: linux-kernel@vger.kernel.org Subject: find struct pci_dev from struct net_device
Hi,
What's the easiest way to find a corresponding struct pci_dev from a struct net_device ? Especially, if the driver does not set pci_dev.driver_data to it's net_device struct (such as the acenic driver) ?
thanks, _sh_
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