From 991c03df1b0543ed02a5d4e803ac8fa9d993fb8e Mon Sep 17 00:00:00 2001
From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Date: Tue, 9 May 2017 16:36:39 +0300
Subject: [PATCH] dpaa2-eth: Add API for counters reset

Add DPNI object API function for resetting interface
hardware counters.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
---
 drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h |  1 +
 drivers/net/ethernet/freescale/dpaa2/dpni.c     | 23 +++++++++++++++++++++++
 drivers/net/ethernet/freescale/dpaa2/dpni.h     |  4 ++++
 3 files changed, 28 insertions(+)

--- a/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h
+++ b/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h
@@ -68,6 +68,7 @@
 #define DPNI_CMDID_CLR_FS_ENT				DPNI_CMD(0x246)
 
 #define DPNI_CMDID_GET_STATISTICS			DPNI_CMD(0x25D)
+#define DPNI_CMDID_RESET_STATISTICS			DPNI_CMD(0x25E)
 #define DPNI_CMDID_GET_QUEUE				DPNI_CMD(0x25F)
 #define DPNI_CMDID_SET_QUEUE				DPNI_CMD(0x260)
 #define DPNI_CMDID_GET_TAILDROP				DPNI_CMD(0x261)
--- a/drivers/net/ethernet/freescale/dpaa2/dpni.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpni.c
@@ -1582,6 +1582,29 @@ int dpni_get_statistics(struct fsl_mc_io
 }
 
 /**
+ * dpni_reset_statistics() - Clears DPNI statistics
+ * @mc_io:		Pointer to MC portal's I/O object
+ * @cmd_flags:		Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:		Token of DPNI object
+ *
+ * Return:  '0' on Success; Error code otherwise.
+ */
+int dpni_reset_statistics(struct fsl_mc_io *mc_io,
+			  u32 cmd_flags,
+			  u16 token)
+{
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPNI_CMDID_RESET_STATISTICS,
+					  cmd_flags,
+					  token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
  * dpni_set_taildrop() - Set taildrop per queue or TC
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
--- a/drivers/net/ethernet/freescale/dpaa2/dpni.h
+++ b/drivers/net/ethernet/freescale/dpaa2/dpni.h
@@ -496,6 +496,10 @@ int dpni_get_statistics(struct fsl_mc_io
 			u8			page,
 			union dpni_statistics	*stat);
 
+int dpni_reset_statistics(struct fsl_mc_io *mc_io,
+			  u32 cmd_flags,
+			  u16 token);
+
 /**
  * Enable auto-negotiation
  */