Hi, Kalesh Anakkur Purayil

On 2020/10/11 0:38, Kalesh Anakkur Purayil wrote:


On Sat, Oct 10, 2020 at 12:42 PM Wei Hu (Xavier) <huwei...@chinasoftinc.com <mailto:huwei...@chinasoftinc.com>> wrote:

    From: Chengchang Tang <tangchengch...@huawei.com
    <mailto:tangchengch...@huawei.com>>

    This patch adds checking whether the related Tx or Rx queue has been
    setupped in the queue-related API functions to avoid illegal address
    access. And validity check of the queue_id is also added in the API
    functions rte_eth_dev_rx_intr_enable and rte_eth_dev_rx_intr_disable.

    Signed-off-by: Chengchang Tang <tangchengch...@huawei.com
    <mailto:tangchengch...@huawei.com>>
    Signed-off-by: Wei Hu (Xavier) <xavier.hu...@huawei.com
    <mailto:xavier.hu...@huawei.com>>
    Signed-off-by: Chengwen Feng <fengcheng...@huawei.com
    <mailto:fengcheng...@huawei.com>>
    ---
     lib/librte_ethdev/rte_ethdev.c | 56
    ++++++++++++++++++++++++++++++++++++++++++
     lib/librte_ethdev/rte_ethdev.h |  3 ++-
     2 files changed, 58 insertions(+), 1 deletion(-)

    diff --git a/lib/librte_ethdev/rte_ethdev.c
    b/lib/librte_ethdev/rte_ethdev.c
    index 892c246..31a8eb3 100644
    --- a/lib/librte_ethdev/rte_ethdev.c
    +++ b/lib/librte_ethdev/rte_ethdev.c
    @@ -897,6 +897,13 @@ rte_eth_dev_rx_queue_start(uint16_t port_id,
    uint16_t rx_queue_id)
                    return -EINVAL;
            }

    +       if (dev->data->rx_queues[rx_queue_id] == NULL) {
    +               RTE_ETHDEV_LOG(ERR, "Rx queue %"PRIu16" of device
    with port_id=%"
    +                                   PRIu16" has not been setupped\n",
    +                                   rx_queue_id, port_id);
    +               return -EINVAL;
    +       }
    +


Hi Xavier,

How about having two common functions which validate RXQ/TXQ ids and whether it has been set up or not like below. This helps avoiding lot of duplicate code:

static inline int
rte_eth_dev_validate_rx_queue(uint16_t port_id, uint16_t rx_queue_id)
{
        struct rte_eth_dev *dev;

        RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL);

        dev = &rte_eth_devices[port_id];

        if (rx_queue_id >= dev->data->nb_rx_queues) {
                RTE_ETHDEV_LOG(ERR, "Invalid RX queue_id=%u\n", rx_queue_id);
                return -EINVAL;
        }

       if (dev->data->rx_queues[rx_queue_id] == NULL) {
               RTE_ETHDEV_LOG(ERR,
                              "Queue %u of device with port_id=%u has not been setup\n",
                              rx_queue_id, port_id);
               return -EINVAL;
       }

       return 0;
}

I fixed it in V2.

Thanks, xavier

Regards,
Kalesh

-- 2.9.5



--
Regards,
Kalesh A P

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