providers/mana: Create RC QPs with flags and MMQ

Use the extended RC QP creation ABI when supported. Request fixed WQEs
and MMQ creation, pass the MMQ buffer to the kernel, and retain the
returned MMQ ID.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>

providers/mana/qp.c

diff --git a/providers/mana/qp.c b/providers/mana/qp.c
index 94f9dff..207d79d 100644
--- a/providers/mana/qp.c
+++ b/providers/mana/qp.c
@@ -257,6 +257,7 @@
 static int mana_create_cmd_qp_rc(struct mana_qp *qp, struct ibv_pd *ibpd,
 				 struct ibv_qp_init_attr *attr)
 {
+	struct mana_context *ctx = to_mctx(ibpd->context);
 	struct mana_ib_create_rc_qp_resp *qp_resp_drv;
 	struct mana_create_rc_qp_resp qp_resp = {};
 	struct mana_ib_create_rc_qp *qp_cmd_drv;
@@ -273,6 +274,13 @@
 		qp_cmd_drv->queue_size[i] = qp->rnic_qp.queues[i].size;
 	}
 
+	if (ctx->comp_mask & MANA_IB_UCNTX_RC_EXT_SUPPORT) {
+		qp_cmd_drv->comp_mask |= MANA_IB_RC_QP_FIXED_WQE | MANA_IB_RC_MMQ_CREATE;
+		qp_cmd_drv->mmq_buf =
+			(uintptr_t)qp->rnic_qp.queues[USER_RNIC_SEND_QUEUE_MM].buffer;
+		qp_cmd_drv->mmq_size = qp->rnic_qp.queues[USER_RNIC_SEND_QUEUE_MM].size;
+	}
+
 	ret = ibv_cmd_create_qp(ibpd, &qp->ibqp.qp, attr, &qp_cmd.ibv_cmd,
 				sizeof(qp_cmd), &qp_resp.ibv_resp,
 				sizeof(qp_resp));
@@ -287,6 +295,8 @@
 		qp->rnic_qp.queues[i].id = qp_resp_drv->queue_id[i];
 	}
 
+	qp->rnic_qp.queues[USER_RNIC_SEND_QUEUE_MM].id = qp_resp_drv->mmq_id;
+
 	return 0;
 }