[dpdk-stable] patch 'net/i40e: exclude internal packet's byte count' has been queued to LTS release 16.11.3

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to LTS release 16.11.3

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 07/19/17. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From 0e8a05b462ae056bb3a198c0cc866132bdfe0bde Mon Sep 17 00:00:00 2001
From: Qi Zhang <qi.z.zhang at intel.com>
Date: Thu, 1 Jun 2017 13:55:45 -0400
Subject: [PATCH] net/i40e: exclude internal packet's byte count

[ upstream commit 0bcdc44510ef5efd7c0069cdd0161e6f446c254b ]

Tx/Rx byte counts of internal managed packet should be
excluded from the total rx/tx bytes.

Fixes: 9aace75fc82e ("i40e: fix statistics")

Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
Acked-by: Beilei Xing <beilei.xing at intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 21 +++++++++++++++++++--
 drivers/net/i40e/i40e_ethdev.h |  5 +++++
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 4e4cd16..975f27a 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -2146,6 +2146,19 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
 	struct i40e_hw_port_stats *ns = &pf->stats; /* new stats */
 	struct i40e_hw_port_stats *os = &pf->stats_offset; /* old stats */
 
+	/* Get rx/tx bytes of internal transfer packets */
+	i40e_stat_update_48(hw, I40E_GLV_GORCH(hw->port),
+			I40E_GLV_GORCL(hw->port),
+			pf->offset_loaded,
+			&pf->internal_rx_bytes_offset,
+			&pf->internal_rx_bytes);
+
+	i40e_stat_update_48(hw, I40E_GLV_GOTCH(hw->port),
+			I40E_GLV_GOTCL(hw->port),
+			pf->offset_loaded,
+			&pf->internal_tx_bytes_offset,
+			&pf->internal_tx_bytes);
+
 	/* Get statistics of struct i40e_eth_stats */
 	i40e_stat_update_48(hw, I40E_GLPRT_GORCH(hw->port),
 			    I40E_GLPRT_GORCL(hw->port),
@@ -2167,7 +2180,7 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
 	 * so subtract ETHER_CRC_LEN from the byte counter for each rx packet.
 	 */
 	ns->eth.rx_bytes -= (ns->eth.rx_unicast + ns->eth.rx_multicast +
-		ns->eth.rx_broadcast) * ETHER_CRC_LEN;
+		ns->eth.rx_broadcast) * ETHER_CRC_LEN + pf->internal_rx_bytes;
 
 	i40e_stat_update_32(hw, I40E_GLPRT_RDPC(hw->port),
 			    pf->offset_loaded, &os->eth.rx_discards,
@@ -2195,7 +2208,7 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
 			    pf->offset_loaded, &os->eth.tx_broadcast,
 			    &ns->eth.tx_broadcast);
 	ns->eth.tx_bytes -= (ns->eth.tx_unicast + ns->eth.tx_multicast +
-		ns->eth.tx_broadcast) * ETHER_CRC_LEN;
+		ns->eth.tx_broadcast) * ETHER_CRC_LEN + pf->internal_tx_bytes;
 	/* GLPRT_TEPC not supported */
 
 	/* additional port specific stats */
@@ -4920,6 +4933,10 @@ i40e_pf_setup(struct i40e_pf *pf)
 	pf->offset_loaded = FALSE;
 	memset(&pf->stats, 0, sizeof(struct i40e_hw_port_stats));
 	memset(&pf->stats_offset, 0, sizeof(struct i40e_hw_port_stats));
+	pf->internal_rx_bytes = 0;
+	pf->internal_tx_bytes = 0;
+	pf->internal_rx_bytes_offset = 0;
+	pf->internal_tx_bytes_offset = 0;
 
 	ret = i40e_pf_get_switch_config(pf);
 	if (ret != I40E_SUCCESS) {
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 5f3ecd9..f283319 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -431,6 +431,11 @@ struct i40e_pf {
 
 	struct i40e_hw_port_stats stats_offset;
 	struct i40e_hw_port_stats stats;
+	/* internal packet byte count, it should be excluded from the total */
+	uint64_t internal_rx_bytes;
+	uint64_t internal_tx_bytes;
+	uint64_t internal_rx_bytes_offset;
+	uint64_t internal_tx_bytes_offset;
 	bool offset_loaded;
 
 	struct rte_eth_dev_data *dev_data; /* Pointer to the device data */
-- 
2.7.4