patches for DPDK stable branches
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From: Kevin Traynor <ktraynor@redhat.com>
To: Junyu Jiang <junyux.jiang@intel.com>
Cc: Ferruh Yigit <ferruh.yigit@intel.com>, dpdk stable <stable@dpdk.org>
Subject: [dpdk-stable] patch 'net/i40e: fix byte counters' has been queued to LTS release 18.11.11
Date: Thu,  5 Nov 2020 12:39:31 +0000
Message-ID: <20201105124015.306404-24-ktraynor@redhat.com> (raw)
In-Reply-To: <20201105124015.306404-1-ktraynor@redhat.com>

Hi,

FYI, your patch has been queued to LTS release 18.11.11

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/10/20. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/f494d5199c6978f98f889875f33c101d88e0c080

Thanks.

Kevin.

---
From f494d5199c6978f98f889875f33c101d88e0c080 Mon Sep 17 00:00:00 2001
From: Junyu Jiang <junyux.jiang@intel.com>
Date: Tue, 22 Sep 2020 09:19:31 +0000
Subject: [PATCH] net/i40e: fix byte counters

[ upstream commit b96646187285b1b593b76af5dbcc365a99900377 ]

This patch fixed the issue that rx/tx bytes statistics counters
overflowed on 48 bit limitation by enlarging the limitation.

Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Junyu Jiang <junyux.jiang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 doc/guides/nics/i40e.rst       |  9 +++++
 drivers/net/i40e/i40e_ethdev.c | 66 +++++++++++++++++++++-------------
 drivers/net/i40e/i40e_ethdev.h |  9 +++++
 3 files changed, 59 insertions(+), 25 deletions(-)

diff --git a/doc/guides/nics/i40e.rst b/doc/guides/nics/i40e.rst
index 01fa817a6d..b8f0b8b2f1 100644
--- a/doc/guides/nics/i40e.rst
+++ b/doc/guides/nics/i40e.rst
@@ -558,4 +558,13 @@ However, the Rx statistics, when calling `rte_eth_stats_get` incorrectly
 shows it as received.
 
+RX/TX statistics may be incorrect when register overflowed
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The rx_bytes/tx_bytes statistics register is 48 bit length.
+Although this limitation is enlarged to 64 bit length on the software side,
+but there is no way to detect if the overflow occurred more than once.
+So rx_bytes/tx_bytes statistics data is correct when statistics are
+updated at least once between two overflows.
+
 VF & TC max bandwidth setting
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 9aacb12293..bb750c0ccf 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -2825,4 +2825,19 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
 }
 
+static void
+i40e_stat_update_48_in_64(struct i40e_hw *hw, uint32_t hireg,
+			  uint32_t loreg, bool offset_loaded, uint64_t *offset,
+			  uint64_t *stat, uint64_t *prev_stat)
+{
+	i40e_stat_update_48(hw, hireg, loreg, offset_loaded, offset, stat);
+	/* enlarge the limitation when statistics counters overflowed */
+	if (offset_loaded) {
+		if (I40E_RXTX_BYTES_L_48_BIT(*prev_stat) > *stat)
+			*stat += (uint64_t)1 << I40E_48_BIT_WIDTH;
+		*stat += I40E_RXTX_BYTES_H_16_BIT(*prev_stat);
+	}
+	*prev_stat = *stat;
+}
+
 /* Get all the statistics of a VSI */
 void
@@ -2834,7 +2849,7 @@ i40e_update_vsi_stats(struct i40e_vsi *vsi)
 	int idx = rte_le_to_cpu_16(vsi->info.stat_counter_idx);
 
-	i40e_stat_update_48(hw, I40E_GLV_GORCH(idx), I40E_GLV_GORCL(idx),
-			    vsi->offset_loaded, &oes->rx_bytes,
-			    &nes->rx_bytes);
+	i40e_stat_update_48_in_64(hw, I40E_GLV_GORCH(idx), I40E_GLV_GORCL(idx),
+				  vsi->offset_loaded, &oes->rx_bytes,
+				  &nes->rx_bytes, &vsi->prev_rx_bytes);
 	i40e_stat_update_48(hw, I40E_GLV_UPRCH(idx), I40E_GLV_UPRCL(idx),
 			    vsi->offset_loaded, &oes->rx_unicast,
@@ -2857,7 +2872,7 @@ i40e_update_vsi_stats(struct i40e_vsi *vsi)
 			    &oes->rx_unknown_protocol,
 			    &nes->rx_unknown_protocol);
-	i40e_stat_update_48(hw, I40E_GLV_GOTCH(idx), I40E_GLV_GOTCL(idx),
-			    vsi->offset_loaded, &oes->tx_bytes,
-			    &nes->tx_bytes);
+	i40e_stat_update_48_in_64(hw, I40E_GLV_GOTCH(idx), I40E_GLV_GOTCL(idx),
+				  vsi->offset_loaded, &oes->tx_bytes,
+				  &nes->tx_bytes, &vsi->prev_tx_bytes);
 	i40e_stat_update_48(hw, I40E_GLV_UPTCH(idx), I40E_GLV_UPTCL(idx),
 			    vsi->offset_loaded, &oes->tx_unicast,
@@ -2901,15 +2916,16 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
 
 	/* 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_stats_offset.rx_bytes,
-			&pf->internal_stats.rx_bytes);
-
-	i40e_stat_update_48(hw, I40E_GLV_GOTCH(hw->port),
-			I40E_GLV_GOTCL(hw->port),
-			pf->offset_loaded,
-			&pf->internal_stats_offset.tx_bytes,
-			&pf->internal_stats.tx_bytes);
+	i40e_stat_update_48_in_64(hw, I40E_GLV_GORCH(hw->port),
+				  I40E_GLV_GORCL(hw->port),
+				  pf->offset_loaded,
+				  &pf->internal_stats_offset.rx_bytes,
+				  &pf->internal_stats.rx_bytes,
+				  &pf->internal_prev_rx_bytes);
+	i40e_stat_update_48_in_64(hw, I40E_GLV_GOTCH(hw->port),
+				  I40E_GLV_GOTCL(hw->port),
+				  pf->offset_loaded,
+				  &pf->internal_stats_offset.tx_bytes,
+				  &pf->internal_stats.tx_bytes,
+				  &pf->internal_prev_tx_bytes);
 	/* Get total internal rx packet count */
 	i40e_stat_update_48(hw, I40E_GLV_UPRCH(hw->port),
@@ -2951,8 +2967,8 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
 
 	/* Get statistics of struct i40e_eth_stats */
-	i40e_stat_update_48(hw, I40E_GLPRT_GORCH(hw->port),
-			    I40E_GLPRT_GORCL(hw->port),
-			    pf->offset_loaded, &os->eth.rx_bytes,
-			    &ns->eth.rx_bytes);
+	i40e_stat_update_48_in_64(hw, I40E_GLPRT_GORCH(hw->port),
+				  I40E_GLPRT_GORCL(hw->port),
+				  pf->offset_loaded, &os->eth.rx_bytes,
+				  &ns->eth.rx_bytes, &pf->prev_rx_bytes);
 	i40e_stat_update_48(hw, I40E_GLPRT_UPRCH(hw->port),
 			    I40E_GLPRT_UPRCL(hw->port),
@@ -3008,8 +3024,8 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
 			    &os->eth.rx_unknown_protocol,
 			    &ns->eth.rx_unknown_protocol);
-	i40e_stat_update_48(hw, I40E_GLPRT_GOTCH(hw->port),
-			    I40E_GLPRT_GOTCL(hw->port),
-			    pf->offset_loaded, &os->eth.tx_bytes,
-			    &ns->eth.tx_bytes);
+	i40e_stat_update_48_in_64(hw, I40E_GLPRT_GOTCH(hw->port),
+				  I40E_GLPRT_GOTCL(hw->port),
+				  pf->offset_loaded, &os->eth.tx_bytes,
+				  &ns->eth.tx_bytes, &pf->prev_tx_bytes);
 	i40e_stat_update_48(hw, I40E_GLPRT_UPTCH(hw->port),
 			    I40E_GLPRT_UPTCL(hw->port),
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index d224a35020..6cec6cf0c1 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -272,4 +272,7 @@ enum i40e_flxpld_layer_idx {
 	(ETHER_HDR_LEN + ETHER_CRC_LEN + I40E_VLAN_TAG_SIZE * 2)
 
+#define I40E_RXTX_BYTES_H_16_BIT(bytes) ((bytes) & ~I40E_48_BIT_MASK)
+#define I40E_RXTX_BYTES_L_48_BIT(bytes) ((bytes) & I40E_48_BIT_MASK)
+
 struct i40e_adapter;
 
@@ -388,4 +391,6 @@ struct i40e_vsi {
 	uint8_t vlan_filter_on; /* The VLAN filter enabled */
 	struct i40e_bw_info bw_info; /* VSI bandwidth information */
+	uint64_t prev_rx_bytes;
+	uint64_t prev_tx_bytes;
 };
 
@@ -976,4 +981,8 @@ struct i40e_pf {
 	/* Switch Domain Id */
 	uint16_t switch_domain_id;
+	uint64_t prev_rx_bytes;
+	uint64_t prev_tx_bytes;
+	uint64_t internal_prev_rx_bytes;
+	uint64_t internal_prev_tx_bytes;
 };
 
-- 
2.26.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-11-05 12:38:54.701434585 +0000
+++ 0024-net-i40e-fix-byte-counters.patch	2020-11-05 12:38:54.195895985 +0000
@@ -1 +1 @@
-From b96646187285b1b593b76af5dbcc365a99900377 Mon Sep 17 00:00:00 2001
+From f494d5199c6978f98f889875f33c101d88e0c080 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit b96646187285b1b593b76af5dbcc365a99900377 ]
+
@@ -10 +11,0 @@
-Cc: stable@dpdk.org
@@ -21 +22 @@
-index b7430f6c4e..a0b81e6695 100644
+index 01fa817a6d..b8f0b8b2f1 100644
@@ -24 +25 @@
-@@ -671,4 +671,13 @@ However, the Rx statistics, when calling `rte_eth_stats_get` incorrectly
+@@ -558,4 +558,13 @@ However, the Rx statistics, when calling `rte_eth_stats_get` incorrectly
@@ -39 +40 @@
-index 563f21d9df..6439baf2f8 100644
+index 9aacb12293..bb750c0ccf 100644
@@ -42 +43 @@
-@@ -3053,4 +3053,19 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
+@@ -2825,4 +2825,19 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
@@ -62 +63 @@
-@@ -3062,7 +3077,7 @@ i40e_update_vsi_stats(struct i40e_vsi *vsi)
+@@ -2834,7 +2849,7 @@ i40e_update_vsi_stats(struct i40e_vsi *vsi)
@@ -73 +74 @@
-@@ -3085,7 +3100,7 @@ i40e_update_vsi_stats(struct i40e_vsi *vsi)
+@@ -2857,7 +2872,7 @@ i40e_update_vsi_stats(struct i40e_vsi *vsi)
@@ -84 +85 @@
-@@ -3129,15 +3144,16 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
+@@ -2901,15 +2916,16 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
@@ -112 +113 @@
-@@ -3179,8 +3195,8 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
+@@ -2951,8 +2967,8 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
@@ -125 +126 @@
-@@ -3237,8 +3253,8 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
+@@ -3008,8 +3024,8 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw)
@@ -139 +140 @@
-index 19f821829a..1466998aa1 100644
+index d224a35020..6cec6cf0c1 100644
@@ -142,2 +143,2 @@
-@@ -283,4 +283,7 @@ struct rte_flow {
- 	(RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + I40E_VLAN_TAG_SIZE * 2)
+@@ -272,4 +272,7 @@ enum i40e_flxpld_layer_idx {
+ 	(ETHER_HDR_LEN + ETHER_CRC_LEN + I40E_VLAN_TAG_SIZE * 2)
@@ -149,2 +150,2 @@
- struct rte_pci_driver;
-@@ -400,4 +403,6 @@ struct i40e_vsi {
+ 
+@@ -388,4 +391,6 @@ struct i40e_vsi {
@@ -157,3 +158,3 @@
-@@ -1157,4 +1162,8 @@ struct i40e_pf {
- 
- 	struct i40e_vf_msg_cfg vf_msg_cfg;
+@@ -976,4 +981,8 @@ struct i40e_pf {
+ 	/* Switch Domain Id */
+ 	uint16_t switch_domain_id;


  parent reply	other threads:[~2020-11-05 12:41 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-05 12:39 [dpdk-stable] patch 'bus/pci: remove duplicate declaration' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/failsafe: fix double space in warning log' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/netvsc: fix multiple channel Rx' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/netvsc: fix stale value after free' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/mlx5: remove unused log macros' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/bnxt: fix endianness while setting L4 destination port' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/iavf: downgrade error log' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'ethdev: remove redundant license text' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/i40e/base: fix function header arguments' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/i40e/base: fix Rx only for unicast promisc on VLAN' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/tap: free mempool when closing' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/dpaa2: fix misuse of interface index' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/cxgbe: fix duplicate MAC addresses in MPS TCAM' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/nfp: expand device info get' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix name of bitrate library in meson build' " Kevin Traynor
2020-11-05 13:22   ` David Marchand
2020-11-11 10:44     ` Kevin Traynor
2020-11-11 10:50       ` Kevin Traynor
2020-11-11 11:51         ` Luca Boccassi
2020-11-05 12:39 ` [dpdk-stable] patch 'gso: fix payload unit size for UDP' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'doc: improve multiport PF in nfp guide' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/sfc/base: fix tunnel configuration' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'vhost: fix IOTLB mempool single-consumer flag' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/qede: fix milliseconds sleep macro' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/ena/base: use min/max macros with type conversion' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/ena/base: specify delay operations' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/ena/base: fix release of wait event' " Kevin Traynor
2020-11-05 12:39 ` Kevin Traynor [this message]
2020-11-05 12:39 ` [dpdk-stable] patch 'net/ixgbe: fix VF reset HW error handling' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/bnxt: fix shift operation' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/bnxt: fix queue get info' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'mempool/octeontx: fix aura to pool mapping' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/fm10k: fix memory leak when thresh check fails' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix port id check in Tx VLAN command' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix VLAN configuration on failure' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: remove restriction on Tx segments set' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix descriptor id check' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix displaying Rx/Tx queues information' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/qede: fix dereference before null check' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app: fix ethdev port id size' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'doc: " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'vdpa/ifc: fix build with recent kernels' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'vfio: fix group descriptor check' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'bus/pci: fix memory leak when unmapping VFIO resource' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'bus/pci: fix leak on VFIO mapping error' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'doc: fix formatting of notes in meson guide' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'mem: fix allocation in container with SELinux' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'bus/fslmc: fix dpio close' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'raw/skeleton: reset test statistics' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'raw/skeleton: allow closing already closed device' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'port: remove useless assignment' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'timer: add limitation note for sync stop and reset' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'app/testpmd: fix build with gcc 11' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'pmdinfogen: " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/mlx5: fix Rx queue count calculation' " Kevin Traynor
2020-11-05 12:39 ` [dpdk-stable] patch 'net/qede: fix getting link details' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'net/fm10k: fix memory leak when Tx thresh check fails' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'raw/dpaa2_qdma: fix reset' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'eal: fix doxygen for EAL cleanup' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'build: skip detecting libpcap via pcap-config' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'doc: fix diagram in dpaa2 guide' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'net: check segment pointer in raw checksum processing' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'net/virtio: check raw checksum failure' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'mem: fix allocation failure on non-NUMA kernel' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'doc: fix missing classify methods in ACL guide' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'table: fix hash for 32-bit' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'test/crypto: fix device number' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'test/crypto: fix stats test' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'cryptodev: fix parameter parsing' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'crypto/dpaa2_sec: fix stats query without queue pair' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'net/avf: fix scattered Rx enabling' " Kevin Traynor
2020-11-05 12:40 ` [dpdk-stable] patch 'net/avf: fix iterator for RSS LUT' " Kevin Traynor

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