From: Jerin Jacob <jerinjacobk@gmail.com>
To: Pavan Nikhilesh <pbhagavatula@marvell.com>
Cc: jerinj@marvell.com, sthotton@marvell.com,
timothy.mcdaniel@intel.com, hemant.agrawal@nxp.com,
sachin.saxena@nxp.com, mattias.ronnblom@ericsson.com,
liangma@liangbit.com, peter.mccarthy@intel.com,
harry.van.haaren@intel.com, erik.g.carrillo@intel.com,
abhinandan.gujjar@intel.com, s.v.naga.harish.k@intel.com,
anatoly.burakov@intel.com, dev@dpdk.org
Subject: Re: [PATCH v4 0/3] Introduce event link profiles
Date: Thu, 28 Sep 2023 20:15:10 +0530 [thread overview]
Message-ID: <CALBAE1NHXS7tfnPhSviLOSRPMC2jfwQu6v1oBOwPtAC+34vf+A@mail.gmail.com> (raw)
In-Reply-To: <20230928101205.4352-1-pbhagavatula@marvell.com>
On Thu, Sep 28, 2023 at 3:42 PM <pbhagavatula@marvell.com> wrote:
>
> From: Pavan Nikhilesh <pbhagavatula@marvell.com>
+ @Thomas Monjalon @David Marchand @Aaron Conole @Michael Santana
There is CI failure in apply stage[1] where it is taking main tree
commit. Not sure why it is taking main tree?
Pavan,
Could you resend this series again to give one more chance to CI.
[1]
https://patches.dpdk.org/project/dpdk/patch/20230928101205.4352-2-pbhagavatula@marvell.com/
>
> A collection of event queues linked to an event port can be associated
> with unique identifier called as a link profile, multiple such profiles
> can be configured based on the event device capability using the function
> `rte_event_port_profile_links_set` which takes arguments similar to
> `rte_event_port_link` in addition to the profile identifier.
>
> The maximum link profiles that are supported by an event device is
> advertised through the structure member
> `rte_event_dev_info::max_profiles_per_port`.
>
> By default, event ports are configured to use the link profile 0 on
> initialization.
>
> Once multiple link profiles are set up and the event device is started, the
> application can use the function `rte_event_port_profile_switch` to change
> the currently active profile on an event port. This effects the next
> `rte_event_dequeue_burst` call, where the event queues associated with the
> newly active link profile will participate in scheduling.
>
> Rudementary work flow would something like:
>
> Config path:
>
> uint8_t lq[4] = {4, 5, 6, 7};
> uint8_t hq[4] = {0, 1, 2, 3};
>
> if (rte_event_dev_info.max_profiles_per_port < 2)
> return -ENOTSUP;
>
> rte_event_port_profile_links_set(0, 0, hq, NULL, 4, 0);
> rte_event_port_profile_links_set(0, 0, lq, NULL, 4, 1);
>
> Worker path:
>
> empty_high_deq = 0;
> empty_low_deq = 0;
> is_low_deq = 0;
> while (1) {
> deq = rte_event_dequeue_burst(0, 0, &ev, 1, 0);
> if (deq == 0) {
> /**
> * Change link profile based on work activity on current
> * active profile
> */
> if (is_low_deq) {
> empty_low_deq++;
> if (empty_low_deq == MAX_LOW_RETRY) {
> rte_event_port_profile_switch(0, 0, 0);
> is_low_deq = 0;
> empty_low_deq = 0;
> }
> continue;
> }
>
> if (empty_high_deq == MAX_HIGH_RETRY) {
> rte_event_port_profile_switch(0, 0, 1);
> is_low_deq = 1;
> empty_high_deq = 0;
> }
> continue;
> }
>
> // Process the event received.
>
> if (is_low_deq++ == MAX_LOW_EVENTS) {
> rte_event_port_profile_switch(0, 0, 0);
> is_low_deq = 0;
> }
> }
>
> An application could use heuristic data of load/activity of a given event
> port and change its active profile to adapt to the traffic pattern.
>
> An unlink function `rte_event_port_profile_unlink` is provided to
> modify the links associated to a profile, and
> `rte_event_port_profile_links_get` can be used to retrieve the links
> associated with a profile.
>
> Using Link profiles can reduce the overhead of linking/unlinking and
> waiting for unlinks in progress in fast-path and gives applications
> the ability to switch between preset profiles on the fly.
>
> v4 Changes:
> ----------
> - Address review comments (Jerin).
>
> v3 Changes:
> ----------
> - Rebase to next-eventdev
> - Rename testcase name to match API.
>
> v2 Changes:
> ----------
> - Fix compilation.
>
> Pavan Nikhilesh (3):
> eventdev: introduce link profiles
> event/cnxk: implement event link profiles
> test/event: add event link profile test
>
> app/test/test_eventdev.c | 117 +++++++++++
> config/rte_config.h | 1 +
> doc/guides/eventdevs/cnxk.rst | 1 +
> doc/guides/eventdevs/features/cnxk.ini | 3 +-
> doc/guides/eventdevs/features/default.ini | 1 +
> doc/guides/prog_guide/eventdev.rst | 40 ++++
> doc/guides/rel_notes/release_23_11.rst | 14 +-
> drivers/common/cnxk/roc_nix_inl_dev.c | 4 +-
> drivers/common/cnxk/roc_sso.c | 18 +-
> drivers/common/cnxk/roc_sso.h | 8 +-
> drivers/common/cnxk/roc_sso_priv.h | 4 +-
> drivers/event/cnxk/cn10k_eventdev.c | 45 +++--
> drivers/event/cnxk/cn10k_worker.c | 11 ++
> drivers/event/cnxk/cn10k_worker.h | 1 +
> drivers/event/cnxk/cn9k_eventdev.c | 74 ++++---
> drivers/event/cnxk/cn9k_worker.c | 22 +++
> drivers/event/cnxk/cn9k_worker.h | 2 +
> drivers/event/cnxk/cnxk_eventdev.c | 37 ++--
> drivers/event/cnxk/cnxk_eventdev.h | 10 +-
> lib/eventdev/eventdev_pmd.h | 59 +++++-
> lib/eventdev/eventdev_private.c | 9 +
> lib/eventdev/eventdev_trace.h | 32 +++
> lib/eventdev/eventdev_trace_points.c | 12 ++
> lib/eventdev/rte_eventdev.c | 150 +++++++++++---
> lib/eventdev/rte_eventdev.h | 231 ++++++++++++++++++++++
> lib/eventdev/rte_eventdev_core.h | 6 +-
> lib/eventdev/rte_eventdev_trace_fp.h | 8 +
> lib/eventdev/version.map | 4 +
> 28 files changed, 814 insertions(+), 110 deletions(-)
>
> --
> 2.25.1
>
next prev parent reply other threads:[~2023-09-28 14:45 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-09 14:26 [RFC " pbhagavatula
2023-08-09 14:26 ` [RFC 1/3] eventdev: introduce " pbhagavatula
2023-08-18 10:27 ` Jerin Jacob
2023-08-09 14:26 ` [RFC 2/3] event/cnxk: implement event " pbhagavatula
2023-08-09 14:26 ` [RFC 3/3] test/event: add event link profile test pbhagavatula
2023-08-09 19:45 ` [RFC 0/3] Introduce event link profiles Mattias Rönnblom
2023-08-10 5:17 ` [EXT] " Pavan Nikhilesh Bhagavatula
2023-08-12 5:52 ` Mattias Rönnblom
2023-08-14 11:29 ` Pavan Nikhilesh Bhagavatula
2023-08-25 18:44 ` [PATCH " pbhagavatula
2023-08-25 18:44 ` [PATCH 1/3] eventdev: introduce " pbhagavatula
2023-08-25 18:44 ` [PATCH 2/3] event/cnxk: implement event " pbhagavatula
2023-08-25 18:44 ` [PATCH 3/3] test/event: add event link profile test pbhagavatula
2023-08-31 20:44 ` [PATCH v2 0/3] Introduce event link profiles pbhagavatula
2023-08-31 20:44 ` [PATCH v2 1/3] eventdev: introduce " pbhagavatula
2023-09-20 4:22 ` Jerin Jacob
2023-08-31 20:44 ` [PATCH v2 2/3] event/cnxk: implement event " pbhagavatula
2023-08-31 20:44 ` [PATCH v2 3/3] test/event: add event link profile test pbhagavatula
2023-09-21 10:28 ` [PATCH v3 0/3] Introduce event link profiles pbhagavatula
2023-09-21 10:28 ` [PATCH v3 1/3] eventdev: introduce " pbhagavatula
2023-09-27 15:23 ` Jerin Jacob
2023-09-21 10:28 ` [PATCH v3 2/3] event/cnxk: implement event " pbhagavatula
2023-09-27 15:29 ` Jerin Jacob
2023-09-21 10:28 ` [PATCH v3 3/3] test/event: add event link profile test pbhagavatula
2023-09-27 14:56 ` [PATCH v3 0/3] Introduce event link profiles Jerin Jacob
2023-09-28 10:12 ` [PATCH v4 " pbhagavatula
2023-09-28 10:12 ` [PATCH v4 1/3] eventdev: introduce " pbhagavatula
2023-10-03 6:55 ` Jerin Jacob
2023-09-28 10:12 ` [PATCH v4 2/3] event/cnxk: implement event " pbhagavatula
2023-09-28 10:12 ` [PATCH v4 3/3] test/event: add event link profile test pbhagavatula
2023-09-28 14:45 ` Jerin Jacob [this message]
2023-09-29 9:27 ` [EXT] Re: [PATCH v4 0/3] Introduce event link profiles Pavan Nikhilesh Bhagavatula
2023-10-03 7:51 ` [PATCH v5 " pbhagavatula
2023-10-03 7:51 ` [PATCH v5 1/3] eventdev: introduce " pbhagavatula
2023-10-03 7:51 ` [PATCH v5 2/3] event/cnxk: implement event " pbhagavatula
2023-10-03 7:51 ` [PATCH v5 3/3] test/event: add event link profile test pbhagavatula
2023-10-03 9:47 ` [PATCH v6 0/3] Introduce event link profiles pbhagavatula
2023-10-03 9:47 ` [PATCH v6 1/3] eventdev: introduce " pbhagavatula
2023-10-03 9:47 ` [PATCH v6 2/3] event/cnxk: implement event " pbhagavatula
2023-10-03 9:47 ` [PATCH v6 3/3] test/event: add event link profile test pbhagavatula
2023-10-03 10:36 ` [PATCH v6 0/3] Introduce event link profiles Jerin Jacob
2023-10-03 14:12 ` Bruce Richardson
2023-10-03 15:17 ` Jerin Jacob
2023-10-03 15:32 ` [EXT] " Pavan Nikhilesh Bhagavatula
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