> -----Original Message----- > From: Rakesh Kudurumalla > Sent: Tuesday, January 10, 2023 12:12 PM > To: Ori Kam <[email protected]>; Jerin Jacob <[email protected]>; > Stephen Hemminger <[email protected]> > Cc: NBU-Contact-Thomas Monjalon (EXTERNAL) <[email protected]>; > Ferruh Yigit <[email protected]>; Andrew Rybchenko > <[email protected]>; [email protected]; NBU-Contact-Adrien > Mazarguil (EXTERNAL) <[email protected]> > Subject: RE: [PATCH 1/3] lib: dpdk spec to skip red for ingress policer > > > > > -----Original Message----- > > From: Ori Kam <[email protected]> > > Sent: Monday, December 26, 2022 10:30 PM > > To: Jerin Jacob <[email protected]>; Stephen Hemminger > > <[email protected]> > > Cc: Rakesh Kudurumalla <[email protected]>; NBU-Contact- > Thomas > > Monjalon (EXTERNAL) <[email protected]>; Ferruh Yigit > > <[email protected]>; Andrew Rybchenko > > <[email protected]>; [email protected]; NBU-Contact-Adrien > > Mazarguil (EXTERNAL) <[email protected]> > > Subject: [EXT] RE: [PATCH 1/3] lib: dpdk spec to skip red for ingress > > policer > > > > External Email > > > > ---------------------------------------------------------------------- > > Hi All, > > > > > -----Original Message----- > > > From: Jerin Jacob <[email protected]> > > > Sent: Thursday, 22 December 2022 7:27 > > > > > > On Thu, Dec 22, 2022 at 8:32 AM Stephen Hemminger > > > <[email protected]> wrote: > > > > > > > > On Thu, 22 Dec 2022 07:09:02 +0530 Rakesh Kudurumalla > > > > <[email protected]> wrote: > > > > > > > > > Dropping of packets based on RED can be skipped with meter > > > > > action, when RED is configured using > > > > > rte_eth_cman_config_set() > > > > > > > > > > Signed-off-by: Rakesh Kudurumalla <[email protected]> > > > > > > > > Should this be more general and apply to all congestion management > > > > options. Assuming the hardware can do something better than RED. > > > > > > Yes. We can use "enum rte_cman_mode mode" in the descriptor to > > > future- proof. > > > > I'm missing the idea of this new action, I understand that is related > > to Jerin congestion patches. > > But I fail to see why we need it? Is it to mark some metadata that > > will have some effect on the congestion result? (I assume the system > > is implemented in the HW) > > Yes. It is implemented in HW. Congestion management is applied on ethdev > Rx queue using rte_eth_cman_config() API. Once it is configured, it applies to > all the packets that steer towards that particular ethdev Rx queue. This > feature help to skip the congestion management processing based on the > packet color identified by the rte_flow meter object. For example, If one Rx > queue configured as RED congestion and application wants to bypass the > RED congestion processing for all GREEN color packet can be expressed > though this API proposal.
Hi Ori Kam, Let me know if above information would give clear idea on skip RED action
