[AMD Official Use Only - AMD Internal Distribution Only] ________________________________ From: Thomas Monjalon Sent: Wednesday, November 19, 2025 8:25 PM To: Tummala, Sivaprasad Cc: Konstantin Ananyev ; Nithin Dabilpuram ; stable@dpdk.org ; jerinj@marvell.com ; kirankumark@marvell.com ; ndabilpuram@marvell.com ; yanzhirun_163@163.com ; david.marchand@redhat.com ; ktraynor@redhat.com ; konstantin.v.ananyev@yandex.ru ; bruce.richardson@intel.com ; maxime.coquelin@redhat.com ; aconole@redhat.com ; dev@dpdk.org ; stable@dpdk.org Subject: Re: [PATCH] examples/l3fwd-graph: remove redundant Tx queue limit Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding. 19/11/2025 14:56, Tummala, Sivaprasad: > > From: Thomas Monjalon > > 19/11/2025 13:08, Tummala, Sivaprasad: > > > From: Thomas Monjalon > > > 06/10/2025 10:58, Tummala, Sivaprasad: > > > > From: Konstantin Ananyev > > > > > > On Mon, Sep 1, 2025 at 11:39 PM Sivaprasad Tummala > > > > > > wrote: > > > > > > > --- a/examples/l3fwd-graph/main.c > > > > > > > +++ b/examples/l3fwd-graph/main.c > > > > > > > @@ -49,7 +49,6 @@ > > > > > > > #define RX_DESC_DEFAULT 1024 > > > > > > > #define TX_DESC_DEFAULT 1024 > > > > > > > > > > > > > > -#define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS > > > > > > > #define MAX_RX_QUEUE_PER_PORT 128 > > > > > > > > > > AFAIK, in the mainline we actually have: > > > > > #define MAX_TX_QUEUE_PER_PORT RTE_MAX_LCORE > > > > > > > > > In l3fwd-graph app, this change is not available and instead we have > > > > > #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS > > > > > > > > > > > since: > > > > > > commit 88256ed85338c572d73006e4c4530a52d3b477ff > > > > > > Author: Harman Kalra > > > > > > Date: Tue Jan 12 23:54:46 2021 +0530 > > > > > > > > > > > > examples/l3fwd: remove limitation on Tx queue count > > > > > > > > > > > > What I am missing here? > > > > > > This patch marked here was fixing l3fwd app and not l3fwd-graph > > > > > > > > > Why not applying the same change to both examples? > > > > Yes, that's what the patch is intended for to fix l3fwd-graph and tx queues will scale with lcores and limited by RTE_MAX_LCORES. > > > > >But it is not done the same way. > > > Here you remove MAX_TX_QUEUE_PER_PORT. > > > Do you want to do the same in l3fwd? > > Yes, it's better to fix the same in l3fwd as "MAX_TX_QUEUE_PER_PORT" is redundant. > > I can submit a separate patch for l3fwd. > > Better to fix in a single patch. > Please check if there are similar issue in other examples. Sure, I will do the needful.