event/cnxk: initialize work slot read cache
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Commit Message
Initialize gw_rdata with tag type EMPTY. Leaving tag type as
zero(ATOMIC) may cause some unnecessary head wait, if cache will be used
before the first update in dequeue/get_work functions.
Signed-off-by: Volodymyr Fialko <vfialko@marvell.com>
---
drivers/event/cnxk/cn10k_eventdev.c | 1 +
1 file changed, 1 insertion(+)
Comments
On Mon, Jun 20, 2022 at 4:56 PM Volodymyr Fialko <vfialko@marvell.com> wrote:
>
> Initialize gw_rdata with tag type EMPTY. Leaving tag type as
> zero(ATOMIC) may cause some unnecessary head wait, if cache will be used
> before the first update in dequeue/get_work functions.
>
> Signed-off-by: Volodymyr Fialko <vfialko@marvell.com>
Applied to dpdk-next-net-eventdev/for-main. Thanks
> ---
> drivers/event/cnxk/cn10k_eventdev.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/event/cnxk/cn10k_eventdev.c b/drivers/event/cnxk/cn10k_eventdev.c
> index 2f15ff8692..d28eeb3f2f 100644
> --- a/drivers/event/cnxk/cn10k_eventdev.c
> +++ b/drivers/event/cnxk/cn10k_eventdev.c
> @@ -56,6 +56,7 @@ cn10k_sso_init_hws_mem(void *arg, uint8_t port_id)
> ws->hws_id = port_id;
> ws->swtag_req = 0;
> ws->gw_wdata = cn10k_sso_gw_mode_wdata(dev);
> + ws->gw_rdata = SSO_TT_EMPTY << 32;
> ws->lmt_base = dev->sso.lmt_base;
>
> return ws;
> --
> 2.25.1
>
@@ -56,6 +56,7 @@ cn10k_sso_init_hws_mem(void *arg, uint8_t port_id)
ws->hws_id = port_id;
ws->swtag_req = 0;
ws->gw_wdata = cn10k_sso_gw_mode_wdata(dev);
+ ws->gw_rdata = SSO_TT_EMPTY << 32;
ws->lmt_base = dev->sso.lmt_base;
return ws;