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3 Commits

Author SHA1 Message Date
Mike Marciniszyn 85caafe307 IB/qib: Optimize CQ callbacks 
The current workqueue implemention has the following performance
deficiencies on QDR HCAs:

- The CQ call backs tend to run on the CPUs processing the
  receive queues
- The single thread queue isn't optimal for multiple HCAs

This patch adds a dedicated per HCA bound thread to process CQ callbacks.

Reviewed-by: Ramkrishna Vepa <ramkrishna.vepa@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
 2013-06-21 17:19:49 -07:00
Mike Marciniszyn a377acd151 IB/qib: Generate completion callback on errors 
According to IBTA vol. 1, C11-30.1.1, a notification callback is
invoked if the CQ is armed for the next solicited completion event or
an error completion.  The error case wasn't being generated correctly.

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
 2011-01-10 17:42:19 -08:00
Ralph Campbell f931551baf IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters 
Add a low-level IB driver for QLogic PCIe adapters.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
 2010-05-23 21:44:54 -07:00