[PATCH v1 1/1] net/cnxk: resolve fail to set large Rx/Tx queues

[Hanumanth Pothula]

While configuring NIX, local variables 'nb_rxq' and 'nb_txq'
are declared as 8bit variables, leading to an integer overflow
when an application sends Rxq/Txq value greater than 255.

Hence, declare local variables, 'nb_rxq' and 'nb_txq' as 16bit
variable.
Also, during the cleanup, make sure PFC tree is not created.

Signed-off-by: Hanumanth Pothula <hpoth...@marvell.com>
---
 drivers/net/cnxk/cnxk_ethdev.c     | 2 +-
 drivers/net/cnxk/cnxk_ethdev_ops.c | 6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c
index cfcc4df916..c0a8e901a3 100644
--- a/drivers/net/cnxk/cnxk_ethdev.c
+++ b/drivers/net/cnxk/cnxk_ethdev.c
@@ -1074,7 +1074,7 @@ cnxk_nix_configure(struct rte_eth_dev *eth_dev)
        struct roc_nix_fc_cfg fc_cfg = {0};
        struct roc_nix *nix = &dev->nix;
        struct rte_ether_addr *ea;
-       uint8_t nb_rxq, nb_txq;
+       uint16_t nb_rxq, nb_txq;
        uint64_t rx_cfg;
        void *qs;
        int rc;
diff --git a/drivers/net/cnxk/cnxk_ethdev_ops.c 
b/drivers/net/cnxk/cnxk_ethdev_ops.c
index 1592971073..b417d61771 100644
--- a/drivers/net/cnxk/cnxk_ethdev_ops.c
+++ b/drivers/net/cnxk/cnxk_ethdev_ops.c
@@ -1142,8 +1142,10 @@ nix_priority_flow_ctrl_sq_conf(struct rte_eth_dev 
*eth_dev, uint16_t qid,
        if (qid >= eth_dev->data->nb_tx_queues)
                return -ENOTSUP;
 
-       /* Check if RX pause frame is enabled or not */
-       if (!pfc->rx_pause_en) {
+       /* Check if RX pause frame is enabled or not and
+        * confirm user requested for PFC.
+        */
+       if (!pfc->rx_pause_en && rx_pause) {
                if ((roc_nix_tm_tree_type_get(nix) == ROC_NIX_TM_DEFAULT) &&
                    eth_dev->data->nb_tx_queues > 1) {
                        /*
-- 
2.25.1