[dpdk-dev] [PATCH] i40e: fix i40e_reset_tx_queue cmd_type_offset_bsz init
Zhang, Helin
helin.zhang at intel.com
Thu Oct 9 05:29:39 CEST 2014
Acked-by: Helin Zhang <helin.zhang at intel.com>
Thanks to James for the good catch!
> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Jim Harris
> Sent: Thursday, October 2, 2014 6:00 AM
> To: dev at dpdk.org
> Subject: [dpdk-dev] [PATCH] i40e: fix i40e_reset_tx_queue
> cmd_type_offset_bsz init
>
> Fix the descriptor initialization loop, so that it initializes the
> i40e_tx_desc::cmd_type_offset_bsz for the correct index into the tx_ring array.
>
> Previously it would use the index once to initialize the txd local variable, then
> again when setting cmd_type_offset_bsz.
>
> Signed-off-by: Jim Harris <james.r.harris at intel.com>
> ---
> lib/librte_pmd_i40e/i40e_rxtx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/lib/librte_pmd_i40e/i40e_rxtx.c b/lib/librte_pmd_i40e/i40e_rxtx.c
> index 7c5b6a8..2b53677 100644
> --- a/lib/librte_pmd_i40e/i40e_rxtx.c
> +++ b/lib/librte_pmd_i40e/i40e_rxtx.c
> @@ -2072,7 +2072,7 @@ i40e_reset_tx_queue(struct i40e_tx_queue *txq)
> for (i = 0; i < txq->nb_tx_desc; i++) {
> volatile struct i40e_tx_desc *txd = &txq->tx_ring[i];
>
> - txd[i].cmd_type_offset_bsz =
> + txd->cmd_type_offset_bsz =
> rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE);
> txe[i].mbuf = NULL;
> txe[i].last_id = i;
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