[dpdk-dev] [PATCH v3] ixgbe: fix ixgbevf RX/TX function assignment

[Bruce Richardson <bruce.richardson@intel.com>]

From: Zhe Tao <zhe.tao@intel.com>

For the secondary process of DPDK to initialize ixgbevf, it will always
use the simple RX function or LRO RX function, and this behavior is not
the same RX/TX function selection logic as it is for the primary process.
Use the ixgbe_set_tx_function and ixgbe_set_rx_function to select the
RX/TX function when secondary process calls the init function for eth dev.

Fixes: 9d8a92628f21 ("ixgbe: remove simple scalar scattered Rx method") 

Signed-off-by: Zhe Tao <zhe.tao@intel.com>
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>

---
V3: fixed spacing and string splitting issues flagged by checkpatch.pl
    adjusted the fixes line to show original commit to introduce the bug
V2: add fixes line
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 891be50..a9a1583 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -1291,8 +1291,21 @@ eth_ixgbevf_dev_init(struct rte_eth_dev *eth_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 (eth_dev->data->scattered_rx)
-			eth_dev->rx_pkt_burst = ixgbe_recv_pkts_lro_single_alloc;
+		struct ixgbe_tx_queue *txq;
+		/* TX queue function in primary, set by last queue initialized
+		 * Tx queue may not initialized by primary process
+		 */
+		if (eth_dev->data->tx_queues) {
+			txq = eth_dev->data->tx_queues[eth_dev->data->nb_tx_queues - 1];
+			ixgbe_set_tx_function(eth_dev, txq);
+		} else {
+			/* Use default TX function if we get here */
+			PMD_INIT_LOG(NOTICE,
+				"No TX queues configured yet. Using default TX function.");
+		}
+
+		ixgbe_set_rx_function(eth_dev);
+
 		return 0;
 	}
 
-- 
2.5.0