IB/Verbs: Use management helper rdma_cap_read_multi_sge()
Introduce helper rdma_cap_read_multi_sge() to help us check if the port of an
IB device support RDMA Read Multiple Scatter-Gather Entries.
Signed-off-by: Michael Wang <yun.wang@profitbricks.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Sean Hefty <sean.hefty@intel.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 6bbbc86..2cf23b1 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1864,6 +1864,22 @@
return rdma_cap_ib_sa(device, port_num);
}
+/**
+ * rdma_cap_read_multi_sge - Check if the port of device has the capability
+ * RDMA Read Multiple Scatter-Gather Entries.
+ *
+ * @device: Device to be checked
+ * @port_num: Port number of the device
+ *
+ * Return false when port of the device don't support
+ * RDMA Read Multiple Scatter-Gather Entries.
+ */
+static inline bool rdma_cap_read_multi_sge(struct ib_device *device,
+ u8 port_num)
+{
+ return !rdma_protocol_iwarp(device, port_num);
+}
+
int ib_query_gid(struct ib_device *device,
u8 port_num, int index, union ib_gid *gid);