On Tue, Mar 29, 2022 at 3:59 PM <sk...@marvell.com> wrote:
>
> From: Sunil Kumar Kori <sk...@marvell.com>
>
> hot_plug application does not perform any port setup
> configuration via rte_eth_dev_configure() API. All the probed
> Ethernet ports do not contain any Rx and Tx queues.
>
> While detaching a device via rte_eal_hotplug_remove(), CNXK
> driver expects Rx and Tx queues structures populated during
> reset of PFC. So application gets crashed as data->rx_queues
> and data->tx_queues are NULL.
>
> Fixes: 9544713564f5 ("net/cnxk: support priority flow control")
Cc: sta...@dpdk.org
> Signed-off-by: Sunil Kumar Kori <sk...@marvell.com>
Acked-by: Jerin Jacob <jer...@marvell.com>
Applied to dpdk-next-net-mrvl/for-next-net. Thanks
> ---
> drivers/net/cnxk/cnxk_ethdev_ops.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/net/cnxk/cnxk_ethdev_ops.c
> b/drivers/net/cnxk/cnxk_ethdev_ops.c
> index f4a0562475..15d8e8efa6 100644
> --- a/drivers/net/cnxk/cnxk_ethdev_ops.c
> +++ b/drivers/net/cnxk/cnxk_ethdev_ops.c
> @@ -1069,6 +1069,11 @@ nix_priority_flow_ctrl_configure(struct rte_eth_dev
> *eth_dev,
> rx_pause = (mode == RTE_ETH_FC_FULL) || (mode == RTE_ETH_FC_RX_PAUSE);
> tx_pause = (mode == RTE_ETH_FC_FULL) || (mode == RTE_ETH_FC_TX_PAUSE);
>
> + if (data->rx_queues == NULL || data->tx_queues == NULL) {
> + rc = 0;
> + goto exit;
> + }
> +
> /* Configure CQs */
> memset(&fc_cfg, 0, sizeof(struct roc_nix_fc_cfg));
> rxq = ((struct cnxk_eth_rxq_sp *)data->rx_queues[conf->rx_qid]) - 1;
> --
> 2.25.1
>
