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authorMike Marciniszyn <mike.marciniszyn@intel.com>2016-07-25 13:39:39 -0700
committerDoug Ledford <dledford@redhat.com>2016-08-02 16:00:58 -0400
commit856cc4c237add46510c8ae91764f4eda31a9e1cf (patch)
tree346dbab7f942e9afd36b7c1b2bb25451d3106e36 /include/rdma/rdma_vt.h
parent23002d5b08ccbbf0902bbc3430293629a1fa12c6 (diff)
downloadlinux-856cc4c237add46510c8ae91764f4eda31a9e1cf.tar.bz2
IB/hfi1: Add the capability for reserved operations
This fix allows for support of in-kernel reserved operations without impacting the ULP user. The low level driver can register a non-zero value which will be transparently added to the send queue size and hidden from the ULP in every respect. ULP post sends will never see a full queue due to a reserved post send and reserved operations will never exceed that registered value. The s_avail will continue to track the ULP swqe availability and the difference between the reserved value and the reserved in use will track reserved availabity. Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma/rdma_vt.h')
-rw-r--r--include/rdma/rdma_vt.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index 7fdba92d4c05..e31502107a58 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h
@@ -158,6 +158,7 @@ struct rvt_driver_params {
u32 max_mad_size;
u8 qos_shift;
u8 max_rdma_atomic;
+ u8 reserved_operations;
};
/* Protection domain */