* [dpdk-dev] [PATCH v2] event/dsw: avoid reusing previously recorded events
@ 2020-05-04 9:30 Mattias Rönnblom
2020-05-04 11:52 ` Jerin Jacob
0 siblings, 1 reply; 2+ messages in thread
From: Mattias Rönnblom @ 2020-05-04 9:30 UTC (permalink / raw)
To: jerinj; +Cc: dev, Mattias Rönnblom, stable, Venky Venkatesh
From: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Avoid reusing recorded events when performing a migration, since this
may make the migration selection logic pick an already-moved flow.
Fixes: f6257b22e767 ("event/dsw: add load balancing")
Cc: stable@dpdk.org
Reported-by: Venky Venkatesh <vvenkatesh@paloaltonetworks.com>
Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
---
V2: rebase
drivers/event/dsw/dsw_event.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/event/dsw/dsw_event.c b/drivers/event/dsw/dsw_event.c
index 832390373..367cf8590 100644
--- a/drivers/event/dsw/dsw_event.c
+++ b/drivers/event/dsw/dsw_event.c
@@ -821,6 +821,9 @@ dsw_port_consider_emigration(struct dsw_evdev *dsw,
if (dsw->num_ports == 1)
return;
+ if (seen_events_len < DSW_MAX_EVENTS_RECORDED)
+ return;
+
DSW_LOG_DP_PORT(DEBUG, source_port->id, "Considering emigration.\n");
/* Randomize interval to avoid having all threads considering
--
2.20.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [dpdk-dev] [PATCH v2] event/dsw: avoid reusing previously recorded events
2020-05-04 9:30 [dpdk-dev] [PATCH v2] event/dsw: avoid reusing previously recorded events Mattias Rönnblom
@ 2020-05-04 11:52 ` Jerin Jacob
0 siblings, 0 replies; 2+ messages in thread
From: Jerin Jacob @ 2020-05-04 11:52 UTC (permalink / raw)
To: Mattias Rönnblom
Cc: Jerin Jacob, dpdk-dev, Mattias Rönnblom, dpdk stable,
Venky Venkatesh
On Mon, May 4, 2020 at 3:01 PM Mattias Rönnblom <hofors@lysator.liu.se> wrote:
>
> From: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
>
> Avoid reusing recorded events when performing a migration, since this
> may make the migration selection logic pick an already-moved flow.
>
> Fixes: f6257b22e767 ("event/dsw: add load balancing")
> Cc: stable@dpdk.org
>
> Reported-by: Venky Venkatesh <vvenkatesh@paloaltonetworks.com>
> Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
> ---
> V2: rebase
Fixed following checkpatch warnings and applied to
dpdk-next-eventdev/master. Thanks.
WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional
statements (8, 12)
#26: FILE: drivers/event/dsw/dsw_event.c:824:
+ if (seen_events_len < DSW_MAX_EVENTS_RECORDED)
+ return;
WARNING:TABSTOP: Statements should start on a tabstop
#27: FILE: drivers/event/dsw/dsw_event.c:825:
+ return;
> drivers/event/dsw/dsw_event.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/event/dsw/dsw_event.c b/drivers/event/dsw/dsw_event.c
> index 832390373..367cf8590 100644
> --- a/drivers/event/dsw/dsw_event.c
> +++ b/drivers/event/dsw/dsw_event.c
> @@ -821,6 +821,9 @@ dsw_port_consider_emigration(struct dsw_evdev *dsw,
> if (dsw->num_ports == 1)
> return;
>
> + if (seen_events_len < DSW_MAX_EVENTS_RECORDED)
> + return;
> +
> DSW_LOG_DP_PORT(DEBUG, source_port->id, "Considering emigration.\n");
>
> /* Randomize interval to avoid having all threads considering
> --
> 2.20.1
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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