IB/hfi1: Fetch monitor values on-demand for CableInfo query

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The monitor values from bytes 22 through 81 of the QSFP memory space
(SFF 8636) are dynamic and serving them out of the QSFP memory cache
maintained by the driver provides stale data to the CableInfo SMA query.
This patch refreshes the dynamic values from the QSFP memory on request
and overwrites the stale data from the cache for the overlap between the
requested range and the monitor range.

Reviewed-by: Jubin John <jubin.john@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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Easwar Hariharan 2016-08-09 11:17:18 -04:00 • committed by Doug Ledford

parent c62fb260a8

commit 140690eae7

2 changed files with 33 additions and 2 deletions

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32

drivers/infiniband/hw/hfi1/qsfp.c

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3

drivers/infiniband/hw/hfi1/qsfp.h

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