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authorDennis Dalessandro <dennis.dalessandro@intel.com>2016-01-06 09:54:16 -0800
committerDoug Ledford <dledford@redhat.com>2016-03-10 20:37:06 -0500
commit30588643f95e1bb1239e2568de7a653722832a5e (patch)
tree88dc1813110e3b287ed38d220b16b1ea71b7d3ec /drivers/infiniband
parent765525c11ef48e63717891a6636f610620ab4e7c (diff)
IB/rdmavt: Add pkey query stub
The pkey table will reside in the rvt structure but it will be modified only when the driver requests then rvt will simply read the value to return in the query. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/sw/rdmavt/vt.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rdmavt/vt.c b/drivers/infiniband/sw/rdmavt/vt.c
index 5ac241c7966f..fc5372d75280 100644
--- a/drivers/infiniband/sw/rdmavt/vt.c
+++ b/drivers/infiniband/sw/rdmavt/vt.c
@@ -137,6 +137,26 @@ static int rvt_modify_port(struct ib_device *ibdev, u8 port,
return -EOPNOTSUPP;
}
+/**
+ * rvt_query_pkey - Return a pkey from the table at a given index
+ * @ibdev: Verbs IB dev
+ * @port: Port number
+ * @intex: Index into pkey table
+ *
+ * Returns 0 on failure pkey otherwise
+ */
+static int rvt_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
+ u16 *pkey)
+{
+ /*
+ * Driver will be responsible for keeping rvt_dev_info.pkey_table up to
+ * date. This function will just return that value. There is no need to
+ * lock, if a stale value is read and sent to the user so be it there is
+ * no way to protect against that anyway.
+ */
+ return 0;
+}
+
/*
* Check driver override. If driver passes a value use it, otherwise we use our
* own value.
@@ -154,6 +174,7 @@ int rvt_register_device(struct rvt_dev_info *rdi)
CHECK_DRIVER_OVERRIDE(rdi, modify_device);
CHECK_DRIVER_OVERRIDE(rdi, query_port);
CHECK_DRIVER_OVERRIDE(rdi, modify_port);
+ CHECK_DRIVER_OVERRIDE(rdi, query_pkey);
/* DMA Operations */
rdi->ibdev.dma_ops =