[dpdk-dev] [PATCH] net/i40e: mbuf alloc failed counter not incremented
Zhang, Helin
helin.zhang at intel.com
Tue Mar 28 10:52:23 CEST 2017
> -----Original Message-----
> From: Allain Legacy [mailto:allain.legacy at windriver.com]
> Sent: Tuesday, March 28, 2017 12:31 AM
> To: Zhang, Helin; Wu, Jingjing
> Cc: dev at dpdk.org; Peters, Matt (Wind River)
> Subject: [PATCH] net/i40e: mbuf alloc failed counter not incremented
>
> From: Matt Peters <matt.peters at windriver.com>
>
> When an mbuf alloc fails during the mempool get operation for the i40e bulk
> alloc receive function, the rx_mbuf_alloc_failed counter is not incremented to
> record the error.
>
> This fix ensures consistency with the other i40e receive procedures and other
> net drivers.
>
> Signed-off-by: Matt Peters <matt.peters at windriver.com>
> Signed-off-by: Allain Legacy <allain.legacy at windriver.com>
> ---
> drivers/net/i40e/i40e_rxtx.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index
> ec64a20eb..794d8717e 100644
> --- a/drivers/net/i40e/i40e_rxtx.c
> +++ b/drivers/net/i40e/i40e_rxtx.c
> @@ -610,6 +610,7 @@ static inline uint16_t rx_recv_pkts(void *rx_queue,
> struct rte_mbuf **rx_pkts, uint16_t nb_pkts) {
> struct i40e_rx_queue *rxq = (struct i40e_rx_queue *)rx_queue;
> + struct rte_eth_dev *dev;
> uint16_t nb_rx = 0;
>
> if (!nb_pkts)
> @@ -630,6 +631,10 @@ rx_recv_pkts(void *rx_queue, struct rte_mbuf
> **rx_pkts, uint16_t nb_pkts)
> PMD_RX_LOG(DEBUG, "Rx mbuf alloc failed for "
> "port_id=%u, queue_id=%u",
> rxq->port_id, rxq->queue_id);
> +
> + dev = &rte_eth_devices[rxq->port_id];
> + dev->data->rx_mbuf_alloc_failed += rxq-
> >rx_free_thresh;
> +
I think there are more places to have the similar code. Would you help to complete all?
e.g. rte_mbuf_raw_alloc() in i40e_recv_pkts.
Thank you very much for the helps!
/Helin
> rxq->rx_nb_avail = 0;
> rxq->rx_tail = (uint16_t)(rxq->rx_tail - nb_rx);
> for (i = 0, j = rxq->rx_tail; i < nb_rx; i++, j++)
> --
> 2.12.1
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