Messages in this thread | | | Date | Tue, 8 Mar 2022 23:30:00 +0100 | From | Horatiu Vultur <> | Subject | Re: [PATCH net-next] net: lan966x: Improve the CPU TX bitrate. |
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The 03/08/2022 22:36, Andrew Lunn wrote: > > > static int lan966x_port_inj_ready(struct lan966x *lan966x, u8 grp) > > { > > - u32 val; > > + unsigned long time = jiffies + usecs_to_jiffies(READL_TIMEOUT_US); > > + int ret = 0; > > > > - return readx_poll_timeout_atomic(lan966x_port_inj_status, lan966x, val, > > - QS_INJ_STATUS_FIFO_RDY_GET(val) & BIT(grp), > > - READL_SLEEP_US, READL_TIMEOUT_US); > > + while (!(lan_rd(lan966x, QS_INJ_STATUS) & > > + QS_INJ_STATUS_FIFO_RDY_SET(BIT(grp)))) { > > + if (time_after(jiffies, time)) { > > + ret = -ETIMEDOUT; > > + break; > > + } > > Did you try setting READL_SLEEP_US to 0? readx_poll_timeout_atomic() > explicitly supports that.
I have tried but it didn't improve. It was the same as before.
> > Andrew
-- /Horatiu
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