dma/skeleton: fix pthread set affinity
Checks
Commit Message
In skeleton dma driver, the user can pin the dma thread to desired
cpu core. The previous commit changed the api from set-affinity to
get-affinity leading to thread to be pinned to first available lcore.
Bugzilla ID: 1270
Fixes: 7fdf30d8b259 ("eal/windows: remove most pthread lifetime shim functions")
Cc: roretzla@linux.microsoft.com
Cc: stable@dpdk.org
Signed-off-by: Vipin Varghese <vipin.varghese@amd.com>
---
---
drivers/dma/skeleton/skeleton_dmadev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Comments
On Sat, Aug 12, 2023 at 07:27:38AM +0530, Vipin Varghese wrote:
> In skeleton dma driver, the user can pin the dma thread to desired
> cpu core. The previous commit changed the api from set-affinity to
> get-affinity leading to thread to be pinned to first available lcore.
>
> Bugzilla ID: 1270
> Fixes: 7fdf30d8b259 ("eal/windows: remove most pthread lifetime shim functions")
> Cc: roretzla@linux.microsoft.com
>
> Cc: stable@dpdk.org
>
> Signed-off-by: Vipin Varghese <vipin.varghese@amd.com>
> ---
yikes, sorry about this and thank you for fixing it.
Acked-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
On Mon, Aug 14, 2023 at 6:24 PM Tyler Retzlaff
<roretzla@linux.microsoft.com> wrote:
>
> On Sat, Aug 12, 2023 at 07:27:38AM +0530, Vipin Varghese wrote:
> > In skeleton dma driver, the user can pin the dma thread to desired
> > cpu core. The previous commit changed the api from set-affinity to
> > get-affinity leading to thread to be pinned to first available lcore.
> >
> > Bugzilla ID: 1270
> > Fixes: 7fdf30d8b259 ("eal/windows: remove most pthread lifetime shim functions")
This Fixes: looks wrong.
I would blame (and blame the bad reviewers):
Fixes: f241553b43ee ("dma/skeleton: drop some pthread API calls")
Can you double check?
15/08/2023 14:21, David Marchand:
> On Mon, Aug 14, 2023 at 6:24 PM Tyler Retzlaff
> <roretzla@linux.microsoft.com> wrote:
> >
> > On Sat, Aug 12, 2023 at 07:27:38AM +0530, Vipin Varghese wrote:
> > > In skeleton dma driver, the user can pin the dma thread to desired
> > > cpu core. The previous commit changed the api from set-affinity to
> > > get-affinity leading to thread to be pinned to first available lcore.
> > >
> > > Bugzilla ID: 1270
> > > Fixes: 7fdf30d8b259 ("eal/windows: remove most pthread lifetime shim functions")
>
> This Fixes: looks wrong.
>
> I would blame (and blame the bad reviewers):
> Fixes: f241553b43ee ("dma/skeleton: drop some pthread API calls")
>
> Can you double check?
I agree with the root cause pointed by David.
Applied, thanks.
@@ -137,7 +137,7 @@ skeldma_start(struct rte_dma_dev *dev)
if (hw->lcore_id != -1) {
cpuset = rte_lcore_cpuset(hw->lcore_id);
- ret = rte_thread_get_affinity_by_id(hw->thread, &cpuset);
+ ret = rte_thread_set_affinity_by_id(hw->thread, &cpuset);
if (ret)
SKELDMA_LOG(WARNING,
"Set thread affinity lcore = %d fail!",