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authorStefan Roscher <stefan.roscher at de.ibm.com>2007-07-20 16:04:17 +0200
committerRoland Dreier <rolandd@cisco.com>2007-07-20 21:19:47 -0700
commite2f81daf23efde23d8cac1fc253d41838f0347cf (patch)
tree310c493f007cc10625426118eaf217e50dd978f3 /drivers/scsi
parent0c10f7b79b5bb07a37aa5927072abdc3f45ac8d3 (diff)
IB/ehca: Support small QP queues
eHCA2 supports QP queues that can be as small as 512 bytes. This greatly reduces memory overhead for consumers that use lots of QPs with small queues (e.g. RDMA-only QPs). Apart from dealing with firmware, this code needs to manage bite-sized chunks of kernel pages, making sure that no kernel page is shared between different protection domains. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
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