[PATCH] net/igc: fix segmentation fault in secondary dpdk-symmetric_mp

[zhichaox.zeng@intel.com]

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

In the secondary dpdk-symmetric_mp process, the
"smp_port_init" was skipped, which cause some function
pointers not to be initialized, and a segmentation fault
occurred when calling these function pointers.

This patch assigns initial values to rx_pkt_burst,
tx_pkt_burst and tx_pkt_prepare pointers to avoid
calling null function pointer.

Signed-off-by: Zhichao Zeng <zhichaox.zeng@intel.com>
---
 drivers/net/igc/igc_ethdev.c | 3 +++
 drivers/net/igc/igc_ethdev.h | 5 +++++
 drivers/net/igc/igc_txrx.c   | 6 +++---
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/net/igc/igc_ethdev.c b/drivers/net/igc/igc_ethdev.c
index b9933b395d..dd4a028ea1 100644
--- a/drivers/net/igc/igc_ethdev.c
+++ b/drivers/net/igc/igc_ethdev.c
@@ -1234,6 +1234,9 @@ eth_igc_dev_init(struct rte_eth_dev *dev)
 	dev->rx_queue_count = eth_igc_rx_queue_count;
 	dev->rx_descriptor_status = eth_igc_rx_descriptor_status;
 	dev->tx_descriptor_status = eth_igc_tx_descriptor_status;
+	dev->rx_pkt_burst = &igc_recv_pkts;
+	dev->tx_pkt_burst = &igc_xmit_pkts;
+	dev->tx_pkt_prepare = &eth_igc_prep_pkts;
 
 	/*
 	 * for secondary processes, we don't initialize any further as primary
diff --git a/drivers/net/igc/igc_ethdev.h b/drivers/net/igc/igc_ethdev.h
index f56cad79e9..2fa3d51bba 100644
--- a/drivers/net/igc/igc_ethdev.h
+++ b/drivers/net/igc/igc_ethdev.h
@@ -263,6 +263,11 @@ struct igc_adapter {
 #define IGC_DEV_PRIVATE_FLOW_LIST(_dev) \
 	(&((struct igc_adapter *)(_dev)->data->dev_private)->flow_list)
 
+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);
+
 static inline void
 igc_read_reg_check_set_bits(struct igc_hw *hw, uint32_t reg, uint32_t bits)
 {
diff --git a/drivers/net/igc/igc_txrx.c b/drivers/net/igc/igc_txrx.c
index e48d5df11a..753ac8a411 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;
@@ -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;
-- 
2.25.1