<div dir="auto"><div><br><div class="gmail_extra"><br><div class="gmail_quote">On Mar 20, 2018 8:45 AM, "Ran Shalit" <<a href="mailto:ranshalit@gmail.com">ranshalit@gmail.com</a>> wrote:<br type="attribution"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
This is not specific buildroot issue, yet I hope someone here will have an idea.<br>
I have long ethernet boot time till receiving ping after powerup.<br>
I use igb driver.<br></blockquote></div></div></div><div dir="auto"><br></div><div dir="auto">Spanning tree protocol on the connected switch might be causing it.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
I tried plenty of things, but nothing worked.<br>
I have printed the function which are called in igb driver.<br>
<br>
This is the relevant log in dmesg:<br>
<br>
[    2.538089] igb: Intel(R) Gigabit Ethernet Network Driver network 5<br>
- version 5.4.0-k<br>
[    2.549736] network igb_reset<br>
[    2.561629] network igb_phy_sw_reset<br>
[    2.561902] network igb_setup_copper_link<br>
[    2.561902] network igb_setup_copper_link... in autoneg<br>
[    2.561903] network igb_copper_link_autoneg<br>
[    2.561904] network igb_phy_setup_autoneg<br>
[    2.562311] network igb_phy_has_link<br>
[    2.563896] network igb_power_down_link<br>
[    2.563900] network igb_power_down_phy_copper<br>
[    2.566079] network igb_phy_has_link<br>
[    3.696797] network igb_set_spd_dplx<br>
[    3.699341] network ping    <<---   trying to ping host from init.d script<br>
[    3.710493] network gpio 5<br>
[    3.975110] network igb_open<br>
[    3.975113] network __igb_open<br>
[    3.975197] network igb_phy_hw_reset<br>
[    3.977192] network igb_power_up_link<br>
[    3.977198] network igb_power_up_phy_copper<br>
[    3.977487] network igb_phy_sw_reset<br>
[    3.977760] network igb_setup_copper_link<br>
[    3.977901] network igb_phy_sw_reset<br>
[    3.978038] network igb_phy_has_link<br>
[    4.020261] network igb_phy_has_link<br>
[    5.216208] network igb_phy_has_link<br>
[    7.881180] network igb_phy_has_link<br>
<br>
Is there any idea how to minimize igb boot time ?<br>
<br>
Regards,<br>
ranran<br>
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</blockquote></div><br></div></div></div>