PCI function measurement block enhancements

Patent metadata

Field	Value
Publication number	US-9483436-B2
Application number	US-201414501388-A
Country	US
Kind code	B2
Filing date	Sep 30, 2014
Priority date	Mar 14, 2014
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

Embodiments relate to an enhancement of a function measurement block. An aspect includes obtaining common statistics from a function table. An aspect includes obtaining adapter-specific statistics from an adapter. An aspect includes providing the common statistics and the adapter-specific statistics in the function measurement block. An aspect includes providing adapter-specific counters in the function measurement block.

First claim

What is claimed is:

1. A computer implemented method for enhancing a function measurement block, the method comprising:
obtaining, by a processor, common statistics from a function table;
obtaining, by the processor, adapter-specific statistics from an adapter;
providing, by the processor, the common statistics and the adapter-specific statistics in the function measurement block; and
providing adapter-specific counters in the function measurement block,
wherein a PCI function type associated with the adapter is reflected in a format field of the function measurement block, the format field having a first value, and a section of the function measurement block is associated with a direct memory access read counter and a direct memory access write counter.

2. The method of claim 1 , wherein when the format field has a second value, a section of the function measurement block is associated with a received bytes counter, a received packets counter, a transmitted bytes counter, and a transmitted packets counter.

3. The method of claim 1 , wherein when the format field has a third value, a section of the function measurement block is associated with a consumed work units counter and a maximum work units counter.

4. The method of claim 1 , further comprising:
receiving, by the processor, a request from the adapter over peripheral component interconnect (PCI).

5. The method of claim 4 , further comprising:
determining, by the processor, an address in a memory based on the request and based on the use of a cache.

6. A computer program product for enhancing a function measurement block, the computer program product comprising:
a computer readable storage medium having program instructions embodied therewith, the program instructions readable by a processing circuit to cause the processing circuit to perform a method comprising:
obtaining, by a processor, common statistics from a function table;
obtaining, by the processor, adapter-specific statistics from an adapter;
providing, by the processor, the common statistics and the adapter-specific statistics in the function measurement block; and
providing adapter-specific counters in the function measurement block,
wherein a PCI function type associated with the adapter is reflected in a format field of the function measurement block, the format field having a first value, and a section of the function measurement block is associated with a direct memory access read counter and a direct memory access write counter.

7. The computer program product of claim 6 , wherein when the format field has a first value, a section of the function measurement block is associated with a received bytes counter, a received packets counter, a transmitted bytes counter, and a transmitted packets counter.

8. The computer program product of claim 6 , wherein when the format field has a first value, a section of the function measurement block is associated with a consumed work units counter and a maximum work units counter.

9. The computer program product of claim 6 , wherein the method further comprises:
receiving, by the processor, a request from the adapter over peripheral component interconnect (PCI).

10. The computer program product of claim 9 , wherein the method further comprises:
determining, by the processor, an address in a memory based on the request and based on the use of a cache.

11. The computer program product of claim 6 , wherein the common statistics comprise at least one of: a number of peripheral component interconnect (PCI) load, PCI Store, PCI Store Block and RPCIT instructions executed during a sample period, and wherein the adapter-specific statistics comprise at least one of: receive byte counts, receive packet counts, transmitted byte counts, transmitted packet counts, and consumed work unit counts.

12. A computer program product for enhancing a function measurement block, the computer program product comprising:
a computer readable storage medium having program instructions embodied therewith, the program instructions readable by a processing circuit to cause the processing circuit to perform a method comprising:
obtaining, by a processor, common statistics from a function table;
obtaining, by the processor, adapter-specific statistics from an adapter;
providing, by the processor, the common statistics and the adapter-specific statistics in the function measurement block; and

providing adapter-specific counters in the function measurement block,
wherein the common statistics comprise at least one of: a number of peripheral component interconnect (PCI) load, PCI Store, PCI Store Block and RPCIT instructions executed during a sample period, and wherein the adapter-specific statistics comprise at least one of: receive byte counts, receive packet counts, transmitted byte counts, transmitted packet counts, and consumed work unit counts.

Assignees

• IBM

Inventors

• Craddock David
• Glendening Beth A
• Gregg Thomas A
• Greiner Dan F

Classifications

• G06F13/4221 Primary

  being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus · CPC title

• G06F13/28

  using burst mode transfer, e.g. direct memory access {DMA}, cycle steal (G06F13/32 takes precedence) · CPC title