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path: root/drivers/infiniband/hw/hfi1/qsfp.c
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2016-10-02IB/hfi1: Extend i2c timeoutDean Luick
Allow a longer timeout for i2c due to clock stretching and inaccurate jiffy timing when under a spin lock. This timeout is consistent with other i2c-algo-bit users. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-22IB/hfi1: Fetch monitor values on-demand for CableInfo queryEaswar Hariharan
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>
2016-08-02IB/hfi1: Use built-in i2c bit-shift bus adapterDean Luick
Use built-in i2c bit-shift bus adapter to control the i2c busses on the chip. Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-02IB/hfi1: Fix typoTadeusz Struk
Fix a copy and paste typo in comment. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-17IB/hfi1: Fix potential buffer overflowTadeusz Struk
This fixes potential buffer overflow because the sprintf function doesn't check buffer boundaries. Use snprintf instead. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-05-26IB/hfi1: Move driver out of stagingDennis Dalessandro
The TODO list for the hfi1 driver was completed during 4.6. In addition other objections raised (which are far beyond what was in the TODO list) have been addressed as well. It is now time to remove the driver from staging and into the drivers/infiniband sub-tree. Reviewed-by: Jubin John <jubin.john@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>