Testing on QDF2400 ARM64 platform.
== Without the patch ==
ubuntu@ubuntu:~$ sudo ifconfig eth0 up
Jun 6 17:29:38 ubuntu kernel: [ 2362.299292] Atheros 8031 ethernet
QCOM8070:00:04: attached PHY driver [Atheros 8031 ethernet]
(mii_bus:phy_addr=QCOM8070:00:04, irq=-2)
Jun 6 17:29:38 ubuntu kernel: [ 2362.299360] IPv6: ADDRCONF(NETDEV_UP): eth0:
link is not ready
Jun 6 17:29:41 ubuntu kernel: [ 2365.028452] 803x_aneg_done: SGMII link is not
ok
ubuntu@ubuntu:~$ sudo dhclient -v eth0
Listening on LPF/eth0/8c:fd:f0:06:92:a5
Sending on LPF/eth0/8c:fd:f0:06:92:a5
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3 (xid=0x75753944)
...
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
ubuntu@ubuntu:~$ ifconfig eth0
eth0 Link encap:Ethernet HWaddr 8c:fd:f0:06:92:a5
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:40
** Description changed:
[Impact]
qcom_emac is unable to get ip address with at803x phy driver. Use software
polling (PHY_POLL) to check for link state changes instead of relying on the
EMAC's hardware polling feature. Some PHY drivers are unable to get a
functioning link because the HW polling is not robust enough.
The emac interface is the onboard nic on the QDF2400 platform. A non
working emac would be a cert blocker for this platform.
[Test]
Boot the netboot DI installer on QDF2400, and chose the emac interface, the
install will fail because the emac interface is unable to get an IP lease.
Also, on an installed system the emac driver is unable to get ip address.
[Fix]
Patch is in Dave Miller's 'net' repo:
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/id=246096690be0742d9bb5f3456d2cb95b68f7b46d
[Regression]
- The patch is to emac driver which is only available on the QDF2400 platform
so there is no risk of regression to other ARM64 platforms or platforms based
on other architectures.
+ The patch is to emac driver which is only available on the QDF2400 platform
so there is no risk of regression to other ARM64 platforms or platforms based
on other architectures. You can see detailed test results on the comments
sections below.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1696143
Title:
[SRU][Zesty] qcom_emac is unable to get ip address with at803x phy
driver.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1696143/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
