diff options
author | Roland Dreier <rolandd@cisco.com> | 2005-10-28 20:35:34 -0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-11-10 19:09:14 -0500 |
commit | 24a4e377068d15424cd6a921d41352f295548037 (patch) | |
tree | f6eb0e19f3828ca713d8151a63292de6d2287a90 /block | |
parent | 6d23c8bc7a6af4300b3c5244f4c21211f9adb960 (diff) |
[PATCH] PCI: add pci_find_next_capability()
Some devices have more than one capability of the same type. For
example, the PCI header for the PathScale InfiniPath looks like:
04:01.0 InfiniBand: Unknown device 1fc1:000d (rev 02)
Subsystem: Unknown device 1fc1:000d
Flags: bus master, fast devsel, latency 0, IRQ 193
Memory at fea00000 (64-bit, non-prefetchable) [size=2M]
Capabilities: [c0] HyperTransport: Slave or Primary Interface
Capabilities: [f8] HyperTransport: Interrupt Discovery and Configuration
There are _two_ HyperTransport capabilities, and the PathScale driver
wants to look at both of them.
The current pci_find_capability() API doesn't work for this, since it
only allows us to get to the first capability of a given type. The
patch below introduces a new pci_find_next_capability(), which can be
used in a loop like
for (pos = pci_find_capability(pdev, <ID>);
pos;
pos = pci_find_next_capability(pdev, pos, <ID>)) {
/* ... */
}
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions