diff options
| author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-05-08 16:32:53 +0000 | 
|---|---|---|
| committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-05-08 16:32:53 +0000 | 
| commit | bb14a2f07c5b50fac48f91e68bb692ed7e0f1304 (patch) | |
| tree | deaf8f35860447668c9c5e14ed8bc7f42daf318e /package/base-files/files/lib/preinit/30_device_fs_daemons | |
| parent | 0511a7adf1781766ff89f543a6f4ffe2fea6a217 (diff) | |
ar71xx: ag71xx: make switch register access atomic
Reading of the PHY registers occasionally returns with bogus values
under heavy load. This misleads the PHY driver and thus causes false
link/speed change notifications which leads to performance loss.
This is easily noticable during an iperf session:
...
[  3] 52.0-53.0 sec  11.3 MBytes  94.4 Mbits/sec
[  3] 53.0-54.0 sec  11.4 MBytes  95.4 Mbits/sec
eth1: link down
br-lan: port 2(eth1) entering forwarding state
eth1: link up (100Mbps/Full duplex)
br-lan: port 2(eth1) entering forwarding state
br-lan: port 2(eth1) entering forwarding state
[  3] 54.0-55.0 sec  6.75 MBytes  56.6 Mbits/sec
[  3] 55.0-56.0 sec  0.00 Bytes  0.00 bits/sec
[  3] 56.0-57.0 sec  10.5 MBytes  88.1 Mbits/sec
...
[  3] 169.0-170.0 sec  11.4 MBytes  95.4 Mbits/sec
[  3] 170.0-171.0 sec  11.4 MBytes  95.4 Mbits/sec
eth1: link up (10Mbps/Half duplex)
[  3] 171.0-172.0 sec  7.63 MBytes  64.0 Mbits/sec
[  3] 172.0-173.0 sec  9.38 MBytes  78.6 Mbits/sec
eth1: link up (100Mbps/Full duplex)
[  3] 173.0-174.0 sec  11.3 MBytes  94.4 Mbits/sec
[  3] 174.0-175.0 sec  11.4 MBytes  95.4 Mbits/sec
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26856 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/base-files/files/lib/preinit/30_device_fs_daemons')
0 files changed, 0 insertions, 0 deletions
