EXTERNAL] [PATCH ] Add checks for the port capabilties

[Ajay Sharma]

  From: Ajay Sharma <sharmaajay at microsoft.com>
  Date: Mon, 22 May 2023 20:24:39 -0700
  Subject: [PATCH] Add checks for the port capabilties
 
  Add checks to the values retrieved from the firmware to prevent
  overflow.
 
  Signed-off-by: Ajay Sharma <sharmaajay at microsoft.com>
  ---
   drivers/net/mana/mana.c | 18 ++++++++++--------
   1 file changed, 10 insertions(+), 8 deletions(-)
 
  diff --git a/drivers/net/mana/mana.c b/drivers/net/mana/mana.c
  index 7630118d4f..3a7e302c86 100644
  --- a/drivers/net/mana/mana.c
  +++ b/drivers/net/mana/mana.c
  @@ -292,8 +292,9 @@ mana_dev_info_get(struct rte_eth_dev *dev,
          dev_info->min_rx_bufsize = MIN_RX_BUF_SIZE;
          dev_info->max_rx_pktlen = MAX_FRAME_SIZE;
 
  -       dev_info->max_rx_queues = priv->max_rx_queues;
  -       dev_info->max_tx_queues = priv->max_tx_queues;
  +       dev_info->max_rx_queues = RTE_MIN(priv->max_rx_queues, USHRT_MAX);
  +       dev_info->max_tx_queues = RTE_MIN(priv->max_tx_queues, USHRT_MAX);
  +
 
          dev_info->max_mac_addrs = MANA_MAX_MAC_ADDR;
          dev_info->max_hash_mac_addrs = 0;
  @@ -334,16 +335,17 @@ mana_dev_info_get(struct rte_eth_dev *dev,
 
          /* Buffer limits */
          dev_info->rx_desc_lim.nb_min = MIN_BUFFERS_PER_QUEUE;
  -       dev_info->rx_desc_lim.nb_max = priv->max_rx_desc;
  +       dev_info->rx_desc_lim.nb_max = RTE_MIN(priv->max_rx_desc, USHRT_MAX);
          dev_info->rx_desc_lim.nb_align = MIN_BUFFERS_PER_QUEUE;
  -       dev_info->rx_desc_lim.nb_seg_max = priv->max_recv_sge;
  -       dev_info->rx_desc_lim.nb_mtu_seg_max = priv->max_recv_sge;
  +       dev_info->rx_desc_lim.nb_seg_max = RTE_MIN(priv->max_recv_sge, USHRT_MAX);
  +       dev_info->rx_desc_lim.nb_mtu_seg_max = RTE_MIN(priv->max_recv_sge, USHRT_MAX);
  +
 
          dev_info->tx_desc_lim.nb_min = MIN_BUFFERS_PER_QUEUE;
  -       dev_info->tx_desc_lim.nb_max = priv->max_tx_desc;
  +       dev_info->tx_desc_lim.nb_max = RTE_MIN(priv->max_tx_desc, USHRT_MAX);
          dev_info->tx_desc_lim.nb_align = MIN_BUFFERS_PER_QUEUE;
  -       dev_info->tx_desc_lim.nb_seg_max = priv->max_send_sge;
  -       dev_info->rx_desc_lim.nb_mtu_seg_max = priv->max_recv_sge;
  +       dev_info->tx_desc_lim.nb_seg_max = RTE_MIN(priv->max_send_sge, USHRT_MAX);
  +       dev_info->rx_desc_lim.nb_mtu_seg_max = RTE_MIN(priv->max_recv_sge, USHRT_MAX);
 
          /* Speed */
          dev_info->speed_capa = RTE_ETH_LINK_SPEED_100G;
  --
  2.25.1
 56