1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/scsi/snic/vnic_cq_fw.h b/drivers/scsi/snic/vnic_cq_fw.h
new file mode 100644
index 000000000..d74954bc7
--- /dev/null
+++ b/drivers/scsi/snic/vnic_cq_fw.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright 2014 Cisco Systems, Inc.  All rights reserved. */
+
+#ifndef _VNIC_CQ_FW_H_
+#define _VNIC_CQ_FW_H_
+
+#include "snic_fwint.h"
+
+static inline unsigned int
+vnic_cq_fw_service(struct vnic_cq *cq,
+		   int (*q_service)(struct vnic_dev *vdev,
+				    unsigned int index,
+				    struct snic_fw_req *desc),
+		   unsigned int work_to_do)
+
+{
+	struct snic_fw_req *desc;
+	unsigned int work_done = 0;
+	u8 color;
+
+	desc = (struct snic_fw_req *)((u8 *)cq->ring.descs +
+		cq->ring.desc_size * cq->to_clean);
+	snic_color_dec(desc, &color);
+
+	while (color != cq->last_color) {
+
+		if ((*q_service)(cq->vdev, cq->index, desc))
+			break;
+
+		cq->to_clean++;
+		if (cq->to_clean == cq->ring.desc_count) {
+			cq->to_clean = 0;
+			cq->last_color = cq->last_color ? 0 : 1;
+		}
+
+		desc = (struct snic_fw_req *)((u8 *)cq->ring.descs +
+			cq->ring.desc_size * cq->to_clean);
+		snic_color_dec(desc, &color);
+
+		work_done++;
+		if (work_done >= work_to_do)
+			break;
+	}
+
+	return work_done;
+}
+
+#endif /* _VNIC_CQ_FW_H_ */