<?xml version="1.0" encoding="UTF-8" ?>

<bugzilla version="5.2"
          urlbase="https://bugzilla.altlinux.org/"
          
          maintainer="jenya@basealt.ru"
>

    <bug>
          <bug_id>31087</bug_id>
          
          <creation_ts>2015-06-19 19:52:39 +0300</creation_ts>
          <short_desc>BCM57780 Gigabit Ethernet стал 100-мегабитным (проверено с 3.14.44-std-def-alt1)</short_desc>
          <delta_ts>2015-12-22 12:12:12 +0300</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>4</classification_id>
          <classification>Development</classification>
          <product>Sisyphus</product>
          <component>kernel-image-std-def</component>
          <version>unstable</version>
          <rep_platform>all</rep_platform>
          <op_sys>Linux</op_sys>
          <bug_status>CLOSED</bug_status>
          <resolution>WONTFIX</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P3</priority>
          <bug_severity>normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Sergey Y. Afonin">asy</reporter>
          <assigned_to name="Vitaly Chikunov">vt</assigned_to>
          <cc>kernelbot</cc>
    
    <cc>placeholder</cc>
    
    <cc>vt</cc>
          
          <qa_contact>qa-sisyphus</qa_contact>

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>151834</commentid>
    <comment_count>0</comment_count>
    <who name="Sergey Y. Afonin">asy</who>
    <bug_when>2015-06-19 19:52:39 +0300</bug_when>
    <thetext>01:00.0 Ethernet controller: Broadcom Corporation NetLink BCM57780 Gigabit Ethernet PCIe (rev 01)

В какой-то момент у сетевой карты пропал режим 1000baseT:

# ethtool -i eth0
driver: tg3
version: 3.136
firmware-version: sb
bus-info: 0000:01:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no

Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
        Supported pause frame use: Symmetric Receive-only
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 

С led-ws-3.4.96-alt0.M70P.1:

# ethtool -i eth0
driver: tg3
version: 3.123
firmware-version: sb
bus-info: 0000:01:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no

Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supported pause frame use: Symmetric Receive-only
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full

un-def-4.0.5-alt1 проверить не могу из-за bug 31086.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>151837</commentid>
    <comment_count>1</comment_count>
    <who name="Sergey Y. Afonin">asy</who>
    <bug_when>2015-06-19 20:09:46 +0300</bug_when>
    <thetext>С un-def-4.0.5-alt1 тоже нет 1000baseT.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>151861</commentid>
    <comment_count>2</comment_count>
    <who name="Sergey Y. Afonin">asy</who>
    <bug_when>2015-06-20 12:33:44 +0300</bug_when>
    <thetext>Нашлась вот такая ссылка:
http://askubuntu.com/questions/197113/cannot-get-gigabit-connection-with-bcm57780-and-tg3-ko

| According to the broadcom devs on kernel.org, Acer intentionally
| failed to connect all the physical layer pins, leaving the gigabit
| chip restricted to 100Mbps. Don&apos;t you love defective by design 
| hardware.

Правда, подробностей найти не удалось пока.

У меня Acer как раз.
01:00.0 Ethernet controller: Broadcom Corporation NetLink BCM57780 Gigabit Ethernet PCIe (rev 01)
01:00.0 0200: 14e4:1692 (rev 01)

Может, для Асеров персонально убрали ? Вообще, не помню, подключал ли я его раньше в гигабитные порты. Сейчас есть только TP-Link TL-WR1043ND v1 под руками. С ним, действительно, только 100M соединение получается, даже с led-ws.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>151862</commentid>
    <comment_count>3</comment_count>
    <who name="Michael Shigorin">mike</who>
    <bug_when>2015-06-20 13:28:21 +0300</bug_when>
    <thetext>Возможно, научили драйвер не анонсировать гигабит, выяснив такое на PHY...</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>154382</commentid>
    <comment_count>4</comment_count>
    <who name="Sergey Y. Afonin">asy</who>
    <bug_when>2015-12-22 12:12:00 +0300</bug_when>
    <thetext>Посчитаем, что это не баг, а, так скажем, экономия на металле для напыления у Acer.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>