On Thu, Mar 16, 2017 at 03:19:23PM +0100, Simon Mages wrote:
> Hi,
>
> right now i got the chance to play a little bit with PCIe. I read some
> parts of the spec
> and was interessted what my PCIe devices can do. I also found out that
> pcidump can
> not display the Enhanced Capabilites.
>
> This patch enables pcidump to display them.
>
> I did not find a good list of descriptions for the different
> capabilities, the one im using
> in this patch was taken from the linux kernel. Is it possible to get a
> complete list
> somewhere?
The patch as comitted skipped entries in the array so pcidump currently
prints the wrong strings in some cases.
const char *pci_enhanced_capnames[] = {
"Unknown",
"Advanced Error Reporting", /* 0x01 */
"Virtual Channel Capability", /* 0x02 */
"Device Serial Number", /* 0x03 */
"Power Budgeting", /* 0x04 */
"Root Complex Link Declaration", /* 0x05 */
"Root Complex Internal Link Control", /* 0x06 */
"Root Complex Event Collector", /* 0x07 */
"Multi-Function VC Capability", /* 0x08 */
"Virtual Channel Capability", /* 0x09 */
"Root Complex/Root Bridge", /* 0x0a */
"Vendor-Specific", /* 0x0b */
"Config Access", /* 0x0c */
"Access Control Services", /* 0x0d */
"Alternate Routing ID", /* 0x0e */
"Address Translation Services", /* 0x0f */
"Single Root I/O Virtualization", /* 0x10 */
"Multi Root I/O Virtualization", /* 0x11 */
"Multicast", /* 0x12 */
"Page Request Interface", /* 0x13 */
"Reserved for AMD", /* 0x14 */
"Resizable BAR", /* 0x15 */
"Dynamic Power Allocation", /* 0x16 */
"TPH Requester", /* 0x17 */
"Latency Tolerance Reporting", /* 0x18 */
"Secondary PCIe Capability", /* 0x19 */
"Protocol Multiplexing", /* 0x1a */
"Process Address Space ID", /* 0x1b */
"Unknown", /* 0x1c */
"Downstream Port Containment", /* 0x1d */
"L1 PM", /* 0x1e */
"Precision Time Measurement", /* 0x1f */
};
Index: pcidump.c
===================================================================
RCS file: /cvs/src/usr.sbin/pcidump/pcidump.c,v
retrieving revision 1.43
diff -u -p -r1.43 pcidump.c
--- pcidump.c 25 Mar 2017 07:33:46 -0000 1.43
+++ pcidump.c 17 May 2017 06:06:56 -0000
@@ -131,7 +131,9 @@ const char *pci_enhanced_capnames[] = {
"Secondary PCIe Capability",
"Protocol Multiplexing",
"Process Address Space ID",
+ "Unknown",
"Downstream Port Containment",
+ "L1 PM",
"Precision Time Measurement",
};
