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From: Qi Zhang <qi.z.zhang@intel.com>
To: qiming.yang@intel.com
Cc: liheng.zhang@intel.com, yixue.wang@intel.com, yao.dong@intel.com,
	dev@dpdk.org, Qi Zhang <qi.z.zhang@intel.com>,
	stable@dpdk.org
Subject: [dpdk-dev] [PATCH] net/ice: fix wrong data path selection in secondary process
Date: Mon, 24 May 2021 17:07:59 +0800	[thread overview]
Message-ID: <20210524090759.980530-1-qi.z.zhang@intel.com> (raw)

The flag use_avx2 and use_avx512 are defined as local variables, they
will not be aware by the secondary process, then wrong data path is
selected. Fix the issue by moving them into struct ice_adapter.

Fixes: ae60d3c9b227 ("net/ice: support Rx AVX2 vector")
Fixes: 2d5f6953d56d ("net/ice: support vector AVX2 in Tx")
Fixes: 7f85d5ebcfe1 ("net/ice: add AVX512 vector path")
Cc: stable@dpdk.org

Reported-by: Yixue Wang <yixue.wang@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/ice/ice_ethdev.h |  6 +++++
 drivers/net/ice/ice_rxtx.c   | 44 ++++++++++++++++++------------------
 2 files changed, 28 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ice/ice_ethdev.h b/drivers/net/ice/ice_ethdev.h
index 2a8a8169d5..aebfd1b0b7 100644
--- a/drivers/net/ice/ice_ethdev.h
+++ b/drivers/net/ice/ice_ethdev.h
@@ -487,6 +487,12 @@ struct ice_adapter {
 	struct ice_devargs devargs;
 	enum ice_pkg_type active_pkg_type; /* loaded ddp package type */
 	uint16_t fdir_ref_cnt;
+#ifdef RTE_ARCH_X86
+	bool rx_use_avx2;
+	bool rx_use_avx512;
+	bool tx_use_avx2;
+	bool tx_use_avx512;
+#endif
 };
 
 struct ice_vsi_vlan_pvid_info {
diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index 49abcb2f5c..f4f6f48d78 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c
@@ -3058,11 +3058,11 @@ ice_set_rx_function(struct rte_eth_dev *dev)
 #ifdef RTE_ARCH_X86
 	struct ice_rx_queue *rxq;
 	int i;
-	int rx_check_ret;
-	bool use_avx512 = false;
-	bool use_avx2 = false;
+	int rx_check_ret = 0;
 
 	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+		ad->rx_use_avx512 = false;
+		ad->rx_use_avx2 = false;
 		rx_check_ret = ice_rx_vec_dev_check(dev);
 		if (rx_check_ret >= 0 && ad->rx_bulk_alloc_allowed &&
 		    rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
@@ -3079,16 +3079,16 @@ ice_set_rx_function(struct rte_eth_dev *dev)
 			rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1 &&
 			rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512BW) == 1)
 #ifdef CC_AVX512_SUPPORT
-				use_avx512 = true;
+				ad->rx_use_avx512 = true;
 #else
 			PMD_DRV_LOG(NOTICE,
 				"AVX512 is not supported in build env");
 #endif
-			if (!use_avx512 &&
+			if (!ad->rx_use_avx512 &&
 			(rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 ||
 			rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1) &&
 			rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256)
-				use_avx2 = true;
+				ad->rx_use_avx2 = true;
 
 		} else {
 			ad->rx_vec_allowed = false;
@@ -3097,7 +3097,7 @@ ice_set_rx_function(struct rte_eth_dev *dev)
 
 	if (ad->rx_vec_allowed) {
 		if (dev->data->scattered_rx) {
-			if (use_avx512) {
+			if (ad->rx_use_avx512) {
 #ifdef CC_AVX512_SUPPORT
 				if (rx_check_ret == ICE_VECTOR_OFFLOAD_PATH) {
 					PMD_DRV_LOG(NOTICE,
@@ -3116,14 +3116,14 @@ ice_set_rx_function(struct rte_eth_dev *dev)
 			} else {
 				PMD_DRV_LOG(DEBUG,
 					"Using %sVector Scattered Rx (port %d).",
-					use_avx2 ? "avx2 " : "",
+					ad->rx_use_avx2 ? "avx2 " : "",
 					dev->data->port_id);
-				dev->rx_pkt_burst = use_avx2 ?
+				dev->rx_pkt_burst = ad->rx_use_avx2 ?
 					ice_recv_scattered_pkts_vec_avx2 :
 					ice_recv_scattered_pkts_vec;
 			}
 		} else {
-			if (use_avx512) {
+			if (ad->rx_use_avx512) {
 #ifdef CC_AVX512_SUPPORT
 				if (rx_check_ret == ICE_VECTOR_OFFLOAD_PATH) {
 					PMD_DRV_LOG(NOTICE,
@@ -3142,9 +3142,9 @@ ice_set_rx_function(struct rte_eth_dev *dev)
 			} else {
 				PMD_DRV_LOG(DEBUG,
 					"Using %sVector Rx (port %d).",
-					use_avx2 ? "avx2 " : "",
+					ad->rx_use_avx2 ? "avx2 " : "",
 					dev->data->port_id);
-				dev->rx_pkt_burst = use_avx2 ?
+				dev->rx_pkt_burst = ad->rx_use_avx2 ?
 					ice_recv_pkts_vec_avx2 :
 					ice_recv_pkts_vec;
 			}
@@ -3294,11 +3294,11 @@ ice_set_tx_function(struct rte_eth_dev *dev)
 #ifdef RTE_ARCH_X86
 	struct ice_tx_queue *txq;
 	int i;
-	int tx_check_ret;
-	bool use_avx512 = false;
-	bool use_avx2 = false;
+	int tx_check_ret = 0;
 
 	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+		ad->tx_use_avx2 = false;
+		ad->tx_use_avx512 = false;
 		tx_check_ret = ice_tx_vec_dev_check(dev);
 		if (tx_check_ret >= 0 &&
 		    rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
@@ -3308,18 +3308,18 @@ ice_set_tx_function(struct rte_eth_dev *dev)
 			rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1 &&
 			rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512BW) == 1)
 #ifdef CC_AVX512_SUPPORT
-				use_avx512 = true;
+				ad->tx_use_avx512 = true;
 #else
 			PMD_DRV_LOG(NOTICE,
 				"AVX512 is not supported in build env");
 #endif
-			if (!use_avx512 && tx_check_ret == ICE_VECTOR_PATH &&
+			if (!ad->tx_use_avx512 && tx_check_ret == ICE_VECTOR_PATH &&
 			(rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 ||
 			rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1) &&
 			rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256)
-				use_avx2 = true;
+				ad->tx_use_avx2 = true;
 
-			if (!use_avx512 && tx_check_ret == ICE_VECTOR_OFFLOAD_PATH)
+			if (!ad->tx_use_avx512 && tx_check_ret == ICE_VECTOR_OFFLOAD_PATH)
 				ad->tx_vec_allowed = false;
 
 			if (ad->tx_vec_allowed) {
@@ -3337,7 +3337,7 @@ ice_set_tx_function(struct rte_eth_dev *dev)
 	}
 
 	if (ad->tx_vec_allowed) {
-		if (use_avx512) {
+		if (ad->tx_use_avx512) {
 #ifdef CC_AVX512_SUPPORT
 			if (tx_check_ret == ICE_VECTOR_OFFLOAD_PATH) {
 				PMD_DRV_LOG(NOTICE,
@@ -3354,9 +3354,9 @@ ice_set_tx_function(struct rte_eth_dev *dev)
 #endif
 		} else {
 			PMD_DRV_LOG(DEBUG, "Using %sVector Tx (port %d).",
-				    use_avx2 ? "avx2 " : "",
+				    ad->tx_use_avx2 ? "avx2 " : "",
 				    dev->data->port_id);
-			dev->tx_pkt_burst = use_avx2 ?
+			dev->tx_pkt_burst = ad->tx_use_avx2 ?
 					    ice_xmit_pkts_vec_avx2 :
 					    ice_xmit_pkts_vec;
 		}
-- 
2.26.2


             reply	other threads:[~2021-05-24  9:04 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-24  9:07 Qi Zhang [this message]
2021-06-03 10:03 ` Wang, Yixue
2021-06-03 10:20   ` Zhang, Qi Z
2022-02-22  3:55     ` Navin Srinivas
2022-02-22  4:30       ` Zhang, Qi Z
2022-02-22  4:39         ` Navin Srinivas
2022-02-22  9:21         ` Kevin Traynor
2022-02-22 12:06           ` Dong, Yao
2022-02-23  2:32             ` Zhang, Liheng
2022-02-25 10:29           ` Navin Srinivas

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