IB/{rdmavt, hfi1, qib}: Self determine driver name

Currently the HFI and QIB drivers allow the IB core to assign a unit
number to the driver name string.

If multiple devices exist in a system, there is a possibility that the
device unit number and the IB core number will be mismatched.

Fix by using the driver defined unit number to generate the device
name.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index 1ba84a78f1c5..b57784e30668 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h
@@ -419,6 +419,19 @@ struct rvt_dev_info {
 
 };
 
+/**
+ * rvt_set_ibdev_name - Craft an IB device name from client info
+ * @rdi: pointer to the client rvt_dev_info structure
+ * @name: client specific name
+ * @unit: client specific unit number.
+ */
+static inline void rvt_set_ibdev_name(struct rvt_dev_info *rdi,
+				      const char *fmt, const char *name,
+				      const int unit)
+{
+	snprintf(rdi->ibdev.name, sizeof(rdi->ibdev.name), fmt, name, unit);
+}
+
 static inline struct rvt_pd *ibpd_to_rvtpd(struct ib_pd *ibpd)
 {
 	return container_of(ibpd, struct rvt_pd, ibpd);