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authorChien Tung <chien.tin.tung@intel.com>2008-11-02 21:40:55 -0800
committerRoland Dreier <rolandd@cisco.com>2008-11-02 21:40:55 -0800
commit633693660045b3e46a63ed618eb38a54339fbcc0 (patch)
tree3ed901d47709c4011850d55c2a38f16cddaad52c /drivers/infiniband/hw/ipath
parent2e369544ac14de7bd0d76b369c1f6110eefbea8a (diff)
RDMA/nes: Mitigate compatibility issue regarding PCIe write credits
Under heavy load, there is an compatibility issue regarding PCIe write credits with certain chipsets. It can be mitigated by limiting read requests to 256 Bytes. This workaround is always enabled for Tbird2 on Gladius. We also add a module parameter to enable workaround for non-Gladius cards. Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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