2019年10月30日 週三 上午12:51寫道：
>
> On Wed, Mar 6, 2019 at 12:37 AM Mingyu Li wrote:
> >
> > the original code use status register to keep there still have some
> > pkts in buffer.
> > need next napi call to receive it.
> >
> > if 128 packets in buffer. you clear st
the original code use status register to keep there still have some
pkts in buffer.
need next napi call to receive it.
if 128 packets in buffer. you clear status first. because napi max
handle 64 packets in buffer.
so 64 packets need to handle in next napi poll. if no new packet
comming. the
Dear Sir.
you need to modify kernel file at "arch/mips/ralink/rt305x.c"
add the code below.
ralink_clk_add("1b00.spi", sys_rate);
+ralink_clk_add("1b40.spi", sys_rate);
ralink_clk_add("1100.timer", wdt_rate);
please let me know if the second spi works. if
Hi John.
i check the code which functions need read/write register.
3 functions (prepare_message, set_cs, transfer_one) are used
at same function __spi_pump_messages at spi.c.
the __spi_pump_message is protected by spi_master->queue_lock
this make sure spi device operation is serialized.
the
i have mention "add debug info" on comment. or you suggest me
move the debug info into another patch.
about num_chipselect. now we should use gpio pin as chip select
pin. so there is no limit on num_chipselect. we can connect more
spi devices by using gpio pin as chip select pin. you can check
according to mtk sdk 4300 at kernel version linux-2.6.36.x
at 40Mhz Xtal it use 20 not 40.
#elif defined (CONFIG_RALINK_MT7621)
case 0:
reg = (*(volatile u32 *)(RALINK_SYSCTL_BASE + 0x44));
cpu_fdiv = ((reg >> 8) & 0x1F);
cpu_ffrac = (reg &
this feature i reference tg3.c driver at function tg3_start_xmit.
it says therer is a small possibility that start_xmit will miss it
and cause the queue to be stopped forever.
below is the tg3 drivers code
=== function tg3_tx ===
tnapi-tx_cons = sw_idx;
/* Need to make the
Dear Sir.
the fe_reset only used to reset ethernet and switch driver.
i think your problem is the old code is wrong.
at ethernet driver(soc_rt305x.c) it just clean all reset bit (enable all
functions. usb?).
but the new code only reset and enable ethernet and switch block.
you can see the diff as
i checkout the latest code and rebuild for rt-n15
only test 3 times lan to wan tcp performance 60 seconds one thread
netperf version 2.6.0
116.33, 116.20, 102.84 (10^6bits/sec)
iperf 2.0.5
120, 116, 113 (Mbits/sec)
iperf 3.0.7
113, 124, 121 (Mbits/sec)
2014-10-30 18:35 GMT+08:00 Paul Fertser
on rt2880 i also use rt-n15. the performance on rt2880 seeks unstable.
sometime low. sometime high. i also don't know why.
others target are more stable. so the maximum is 12x i got.
by datasheet it support tx/rx checksum offload. but ralink sdk disable it.
so i also disable it. so the performanc
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