1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/bus/fslmc/qbman/qbman_debug.c b/drivers/bus/fslmc/qbman/qbman_debug.c
new file mode 100644
index 00000000..591673ab
--- /dev/null
+++ b/drivers/bus/fslmc/qbman/qbman_debug.c
@@ -0,0 +1,66 @@
+/* Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:        BSD-3-Clause
+ */
+
+#include "compat.h"
+#include <fsl_qbman_debug.h>
+#include "qbman_portal.h"
+
+/* QBMan portal management command code */
+#define QBMAN_BP_QUERY            0x32
+#define QBMAN_FQ_QUERY            0x44
+#define QBMAN_FQ_QUERY_NP         0x45
+#define QBMAN_WQ_QUERY            0x47
+#define QBMAN_CGR_QUERY           0x51
+#define QBMAN_WRED_QUERY          0x54
+#define QBMAN_CGR_STAT_QUERY      0x55
+#define QBMAN_CGR_STAT_QUERY_CLR  0x56
+
+struct qbman_fq_query_desc {
+	uint8_t verb;
+	uint8_t reserved[3];
+	uint32_t fqid;
+	uint8_t reserved2[57];
+};
+
+int qbman_fq_query_state(struct qbman_swp *s, uint32_t fqid,
+			 struct qbman_fq_query_np_rslt *r)
+{
+	struct qbman_fq_query_desc *p;
+
+	p = (struct qbman_fq_query_desc *)qbman_swp_mc_start(s);
+	if (!p)
+		return -EBUSY;
+
+	p->fqid = fqid;
+	*r = *(struct qbman_fq_query_np_rslt *)qbman_swp_mc_complete(s, p,
+						QBMAN_FQ_QUERY_NP);
+	if (!r) {
+		pr_err("qbman: Query FQID %d NP fields failed, no response\n",
+		       fqid);
+		return -EIO;
+	}
+
+	/* Decode the outcome */
+	QBMAN_BUG_ON((r->verb & QBMAN_RESPONSE_VERB_MASK) != QBMAN_FQ_QUERY_NP);
+
+	/* Determine success or failure */
+	if (r->rslt != QBMAN_MC_RSLT_OK) {
+		pr_err("Query NP fields of FQID 0x%x failed, code=0x%02x\n",
+		       fqid, r->rslt);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+uint32_t qbman_fq_state_frame_count(const struct qbman_fq_query_np_rslt *r)
+{
+	return (r->frm_cnt & 0x00FFFFFF);
+}
+
+uint32_t qbman_fq_state_byte_count(const struct qbman_fq_query_np_rslt *r)
+{
+	return r->byte_cnt;
+}