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IB/ipath: Performance improvements via mmap of queues
authorRalph Campbell <ralph.campbell@qlogic.com>
Fri, 22 Sep 2006 22:22:26 +0000 (15:22 -0700)
committerRoland Dreier <rolandd@cisco.com>
Fri, 22 Sep 2006 22:22:26 +0000 (15:22 -0700)
commit373d9915803aebbbf7fd3841efd9dac31c32e148
treebd0b05d5e78eab4471bc4d623a880013693077eatree | snapshot
parent9bc57e2d19db4da81c1150120658cc3658a99ed4commit | diff
IB/ipath: Performance improvements via mmap of queues

Improve performance of userspace post receive, post SRQ receive, and
poll CQ operations for ipath by allowing userspace to directly mmap()
receive queues and completion queues.  This eliminates the copying
between userspace and the kernel in the data path.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
drivers/infiniband/hw/ipath/Makefile diff | blob | history
drivers/infiniband/hw/ipath/ipath_cq.c diff | blob | history
drivers/infiniband/hw/ipath/ipath_mmap.c [new file with mode: 0644] blob
drivers/infiniband/hw/ipath/ipath_qp.c diff | blob | history
drivers/infiniband/hw/ipath/ipath_ruc.c diff | blob | history
drivers/infiniband/hw/ipath/ipath_srq.c diff | blob | history
drivers/infiniband/hw/ipath/ipath_ud.c diff | blob | history
drivers/infiniband/hw/ipath/ipath_verbs.c diff | blob | history
drivers/infiniband/hw/ipath/ipath_verbs.h diff | blob | history
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