> -----Original Message-----
> From: dev <dev-boun...@dpdk.org> On Behalf Of Hemant Agrawal
> Sent: Wednesday, December 11, 2019 5:30 AM
> To: dev@dpdk.org
> Cc: Jun Yang <jun.y...@nxp.com>
> Subject: [dpdk-dev] [PATCH] app/testpmd: support unequal number of RXQ and TXQ
>
> From: Jun Yang <jun.y...@nxp.com>
>
> The existing forwarding mode usages the total number of
> queues as the minimum of rxq and txq.
> It finds the txq as the same index as rxq.
> However in some scenarios, specially for flow control
> the number of rxq and txq can be different.
> This patch maxes the txq and function of rxq for all such
> scenario instead of keeping 1:1 relationship between the two.
>
> Now packets from all RXQs can be forwarded to TXQs
>
> Signed-off-by: Jun Yang <jun.y...@nxp.com>
> ---
> app/test-pmd/config.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
> index d59968278..efa409453 100644
> --- a/app/test-pmd/config.c
> +++ b/app/test-pmd/config.c
> @@ -2130,8 +2130,6 @@ rss_fwd_config_setup(void)
> streamid_t sm_id;
>
> nb_q = nb_rxq;
> - if (nb_q > nb_txq)
> - nb_q = nb_txq;
> cur_fwd_config.nb_fwd_lcores = (lcoreid_t) nb_fwd_lcores;
> cur_fwd_config.nb_fwd_ports = nb_fwd_ports;
> cur_fwd_config.nb_fwd_streams =
> @@ -2154,7 +2152,7 @@ rss_fwd_config_setup(void)
> fs->rx_port = fwd_ports_ids[rxp];
> fs->rx_queue = rxq;
> fs->tx_port = fwd_ports_ids[txp];
> - fs->tx_queue = rxq;
> + fs->tx_queue = (rxq % nb_txq);
But does it mean that now 2 lcores cah use the same TX queue?
If so, then how it supposed to work?
> fs->peer_addr = fs->tx_port;
> fs->retry_enabled = retry_enabled;
> rxp++;
> --
> 2.17.1
