IB/core: Introduce modify QP operation with udata
This patch adds new function ib_modify_qp_with_udata so that
uverbs layer can avoid handling L2 mac address at verbs layer
and depend on the core layer to resolve the mac address consistently
for all required QPs.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 644fa0d..7f8fe44 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1276,20 +1276,36 @@ int ib_resolve_eth_dmac(struct ib_device *device,
}
EXPORT_SYMBOL(ib_resolve_eth_dmac);
+/**
+ * ib_modify_qp_with_udata - Modifies the attributes for the specified QP.
+ * @qp: The QP to modify.
+ * @attr: On input, specifies the QP attributes to modify. On output,
+ * the current values of selected QP attributes are returned.
+ * @attr_mask: A bit-mask used to specify which attributes of the QP
+ * are being modified.
+ * @udata: pointer to user's input output buffer information
+ * are being modified.
+ * It returns 0 on success and returns appropriate error code on error.
+ */
+int ib_modify_qp_with_udata(struct ib_qp *qp, struct ib_qp_attr *attr,
+ int attr_mask, struct ib_udata *udata)
+{
+ int ret;
+
+ if (attr_mask & IB_QP_AV) {
+ ret = ib_resolve_eth_dmac(qp->device, &attr->ah_attr);
+ if (ret)
+ return ret;
+ }
+ return ib_security_modify_qp(qp, attr, attr_mask, udata);
+}
+EXPORT_SYMBOL(ib_modify_qp_with_udata);
+
int ib_modify_qp(struct ib_qp *qp,
struct ib_qp_attr *qp_attr,
int qp_attr_mask)
{
-
- if (qp_attr_mask & IB_QP_AV) {
- int ret;
-
- ret = ib_resolve_eth_dmac(qp->device, &qp_attr->ah_attr);
- if (ret)
- return ret;
- }
-
- return ib_security_modify_qp(qp->real_qp, qp_attr, qp_attr_mask, NULL);
+ return ib_modify_qp_with_udata(qp, qp_attr, qp_attr_mask, NULL);
}
EXPORT_SYMBOL(ib_modify_qp);