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From: zhichaox.zeng@intel.com
To: dev@dpdk.org
Cc: stable@dpdk.org, qiming.yang@intel.com, qi.z.zhang@intel.com,
	Zhichao Zeng <zhichaox.zeng@intel.com>,
	alvinx.zhang@intel.com, Junfeng Guo <junfeng.guo@intel.com>,
	Simei Su <simei.su@intel.com>,
	Anatoly Burakov <anatoly.burakov@intel.com>,
	Ferruh Yigit <ferruh.yigit@intel.com>
Subject: [PATCH v4] net/igc: add support for secondary processes
Date: Thu, 30 Jun 2022 19:03:30 +0800	[thread overview]
Message-ID: <20220630110330.211655-1-zhichaox.zeng@intel.com> (raw)
In-Reply-To: <20220628062052.5397-1-zhichaox.zeng@intel.com>

From: Zhichao Zeng <zhichaox.zeng@intel.com>

The RX function was not specified in the secondary process, causing the
secondary process to segfault in a multi-process environment.

This patch specify RX/TX functions in "dev_init" to support secondary
processes.

Fixes: 66fde1b943eb ("net/igc: add skeleton")
Cc: alvinx.zhang@intel.com
Cc: stable@dpdk.org

Signed-off-by: Zhichao Zeng <zhichaox.zeng@intel.com>

---
v2:
remove unnecessary parameters, move declaration to relevant header file
---
v3:
remove redundant code, optimize commit log
---
v4:
rework patch
---
 drivers/net/igc/igc_ethdev.c | 9 ++++++++-
 drivers/net/igc/igc_txrx.c   | 8 ++++----
 drivers/net/igc/igc_txrx.h   | 6 ++++++
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/drivers/net/igc/igc_ethdev.c b/drivers/net/igc/igc_ethdev.c
index b9933b395d..7f221a5d34 100644
--- a/drivers/net/igc/igc_ethdev.c
+++ b/drivers/net/igc/igc_ethdev.c
@@ -1240,8 +1240,15 @@ eth_igc_dev_init(struct rte_eth_dev *dev)
 	 * has already done this work. Only check we don't need a different
 	 * RX function.
 	 */
-	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+		dev->rx_pkt_burst = igc_recv_pkts;
+		if (dev->data->scattered_rx)
+			dev->rx_pkt_burst = igc_recv_scattered_pkts;
+
+		dev->tx_pkt_burst = igc_xmit_pkts;
+		dev->tx_pkt_prepare = eth_igc_prep_pkts;
 		return 0;
+	}
 
 	rte_eth_copy_pci_info(dev, pci_dev);
 	dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
diff --git a/drivers/net/igc/igc_txrx.c b/drivers/net/igc/igc_txrx.c
index e48d5df11a..ffd219b0df 100644
--- a/drivers/net/igc/igc_txrx.c
+++ b/drivers/net/igc/igc_txrx.c
@@ -345,7 +345,7 @@ rx_desc_get_pkt_info(struct igc_rx_queue *rxq, struct rte_mbuf *rxm,
 	rxm->packet_type = rx_desc_pkt_info_to_pkt_type(pkt_info);
 }
 
-static uint16_t
+uint16_t
 igc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 {
 	struct igc_rx_queue * const rxq = rx_queue;
@@ -488,7 +488,7 @@ igc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 	return nb_rx;
 }
 
-static uint16_t
+uint16_t
 igc_recv_scattered_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 			uint16_t nb_pkts)
 {
@@ -1397,7 +1397,7 @@ eth_igc_rx_queue_setup(struct rte_eth_dev *dev,
 }
 
 /* prepare packets for transmit */
-static uint16_t
+uint16_t
 eth_igc_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
 		uint16_t nb_pkts)
 {
@@ -1604,7 +1604,7 @@ tx_desc_cksum_flags_to_olinfo(uint64_t ol_flags)
 	return tmp;
 }
 
-static uint16_t
+uint16_t
 igc_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 {
 	struct igc_tx_queue * const txq = tx_queue;
diff --git a/drivers/net/igc/igc_txrx.h b/drivers/net/igc/igc_txrx.h
index 535108a868..02a0a051bb 100644
--- a/drivers/net/igc/igc_txrx.h
+++ b/drivers/net/igc/igc_txrx.h
@@ -49,6 +49,12 @@ void eth_igc_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
 	struct rte_eth_txq_info *qinfo);
 void eth_igc_vlan_strip_queue_set(struct rte_eth_dev *dev,
 			uint16_t rx_queue_id, int on);
+uint16_t igc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
+uint16_t igc_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
+uint16_t eth_igc_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
+	uint16_t nb_pkts);
+uint16_t igc_recv_scattered_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
+	uint16_t nb_pkts);
 #ifdef __cplusplus
 }
 #endif
-- 
2.25.1


  parent reply	other threads:[~2022-06-30 11:03 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-15  7:39 [PATCH] net/igc: fix segmentation fault in secondary dpdk-symmetric_mp zhichaox.zeng
2022-06-16  2:49 ` Guo, Junfeng
2022-06-22 10:49 ` [PATCH v2] " zhichaox.zeng
2022-06-23  3:50   ` Zhang, Qi Z
2022-06-28  6:20   ` [PATCH v3] net/igc: move the initialization of data path into dev_init zhichaox.zeng
2022-06-28  7:00     ` Zhang, Qi Z
2022-06-30 11:03     ` zhichaox.zeng [this message]
2022-06-30 11:47       ` [PATCH v4] net/igc: add support for secondary processes Zhang, Qi Z
2022-07-01  3:13         ` Zeng, ZhichaoX
2022-07-01  3:47           ` Zhang, Qi Z

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