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To: Olivier Matz <olivier.matz@6wind.com>, dev@dpdk.org,
Ajit Khaparde <ajit.khaparde@broadcom.com>
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From: Ferruh Yigit <ferruh.yigit@intel.com>
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Subject: Re: [dpdk-stable] [PATCH 1/2] net/bnxt: fix headroom initialization
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On 12/14/2017 6:28 AM, Olivier Matz wrote:
> When allocating a new mbuf for Rx, the value of m->data_off should not
> be reset to its default value (RTE_PKTMBUF_HEADROOM), instead of reusing
> the previous undefined value, which could cause the packet to have a too
> small or too high headroom.
>
> Fixes: 2eb53b134aae ("net/bnxt: add initial Rx code")
> Cc: stable@dpdk.org
>
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
> ---
> drivers/net/bnxt/bnxt_rxr.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c
> index 188df362e..3fff4d437 100644
> --- a/drivers/net/bnxt/bnxt_rxr.c
> +++ b/drivers/net/bnxt/bnxt_rxr.c
> @@ -75,7 +75,7 @@ static inline int bnxt_alloc_rx_data(struct bnxt_rx_queue *rxq,
>
> rx_buf->mbuf = data;
>
> - rxbd->addr = rte_cpu_to_le_64(RTE_MBUF_DATA_DMA_ADDR(rx_buf->mbuf));
> + rxbd->addr = rte_cpu_to_le_64(rte_mbuf_data_dma_addr_default(data));
Hi Olivier,
Using deprecated rte_mbuf_data_dma_addr_default() breaks build for this commit.
What do you think using directly rte_mbuf_data_iova_default() in this patch?
Thanks,
ferruh