Following the boot, verified the status of the network card through dmesg | grep eth0 which shows e1000: eth0 NIC Link is Up 100 Mbps Half Duplex. When using either modprobe e1000 Duplex=2 or insmod e1000 Duplex=2, neither changes the network card to full duplex. The Cisco 6509 switch is configured for Full Duplex (configured hard, not auto), and still unable to get the card into full duplex. Card is an Intel 1Gbps card, installed to a 100Mbps port on the switch. All network activity is functional but duplex is the issue. Reproducible: Always Steps to Reproduce: 1. modprobe e1000 Duplex=2 2. dmesg | grep eth0 3. modules-update 4. dmesg | grep eth0 Actual Results: e1000: eth0 NIC Link is Up 100 Mbps Half Duplex Expected Results: The duplex should have change to full duplex instead of remaining at half.
sorry, but you didn't provided us any info do you use kernel module or e100 ebuild and which version
* net-misc/e1000 Latest version available: 5.2.20 Latest version installed: 5.2.20 Size of downloaded files: 116 kB Due to the documentation provided in the manual page, e1000 cannot be loaded into the kernel so it is built as a module during kernel compile time.
try e1000-5.2.22.ebuild also in newer kernels e1000 is already inclued (older version) but maybe they work for you
Running e1000-5.2.22 did not resolve this problem. Changing network driver through either modprobe e1000 Duplex=2 or insmod e1000 Duplex=2 does not resolve problem when switchport is configured for 100Mbps Full Duplex.
i'm using cisco switches here when the port is configured to a fixed bandwith and duplex, i just ran modprobe e1000. works fine
Following information contains a listing from ethtool: MAC Registers ------------- 0x00000: CTRL (Device control register) 0x02FC0269 Duplex: full Endian mode (buffers): little Link reset: reset Set link up: 1 Invert Loss-Of-Signal: no Receive flow control: disabled Transmit flow control: disabled VLAN mode: disabled Auto speed detect: enabled Speed select: 1000Mb/s Force speed: no Force duplex: no 0x00008: STATUS (Device status register) 0x0000DB42 Duplex: half Link up: link config TBI mode: disabled Link speed: 100Mb/s 0x00100: RCTL (Receive control register) 0x00008002 Receiver: enabled Store bad packets: disabled Unicast promiscuous: disabled Multicast promiscuous: disabled Long packet: disabled Descriptor minimum threshold size: 1/2 Broadcast accept mode: accept VLAN filter: disabled Cononical form indicator: disabled Discard pause frames: filtered Pass MAC control frames: don't pass Receive buffer size: 2048 0x02808: RDLEN (Receive desc length) 0x00001000 0x02810: RDH (Receive desc head) 0x00000076 0x02818: RDT (Receive desc tail) 0x00000070 0x02820: RDTR (Receive delay timer) 0x00000000 0x00400: TCTL (Transmit ctrl register) 0x0004010A Transmitter: enabled Pad short packets: enabled Software XOFF Transmission: disabled Re-transmit on late collision: disabled 0x03808: TDLEN (Transmit desc length) 0x00001000 0x03810: TDH (Transmit desc head) 0x00000073 0x03818: TDT (Transmit desc tail) 0x00000073 0x03820: TIDV (Transmit delay timer) 0x00000040 As you can see, CTRL register shows Full Duplex but STATUS register shows Half Duplex. Switch configuration is as follows: CAT6509-DDC-01> (enable) sh port 6/19 Port Name Status Vlan Duplex Speed Type ----- -------------------- ---------- ---------- ------ ----- ------------ 6/19 gentooDNS Test connected 24 full 100 10/100BaseTX Based upon this information, the switch recognizes the Duplex at Full, but NIC drivers on the server still remain at Half.
this is fully functional (afaik) in the more recent 2.6.X series of kernels. if you still experience this with the newest release, please re-open the bug. many thanks for taking your time to log this.
