This patchset adds support for executing Ethernet PHY cable tests and
reporting the results back to user space. The Marvell PHY driver has
been extended so some of its cable test features can be used.
It builds upon the work of Michal Kubecek adding a netlink version of
ethtool. As such, that work needs to be merged first. However, with
Microchip posting their cable test work, i thought it a good idea to
post what i have.
A few examples:
./ethtool --cable-test lan6
Cable test for device lan6.
Pair: 0, result: OK
Pair: 1, result: OK
Pair: 2, result: OK
Pair: 3, result: OK
./ethtool --cable-test lan2
Cable test for device lan2.
Pair: 0, result: Open Circuit
Pair: 1, result: Open Circuit
Pair: 2, result: Open Circuit
Pair: 3, result: Open Circuit
Pair: 0, fault length: 14.40m
Pair: 1, fault length: 15.20m
Pair: 2, fault length: 14.40m
Pair: 3, fault length: 15.20m
./ethtool --cable-test lan5
Cable test for device lan5.
Pair: 0, result: OK
Pair: 1, result: OK
Pair: 2, result: Short within Pair
Pair: 3, result: Short within Pair
Pair: 2, fault length: 1.60m
Pair: 3, fault length: 0.80m
./ethtool --cable-test lan2 amplitude-graph
Cable test for device lan2.
Cable test Pulse: 1000mV
Distance Pair 0 Pair 1 Pair 2 Pair 3
0 109 85 39 62
1 -15 46 -7 31
2 7 0 0 -7
3 7 7 0 15
4 15 7 7 15
5 23 0 0 7
6 15 0 0 7
7 23 0 0 0
8 7 0 0 7
9 0 0 0 0
10 0 0 0 0
11 0 0 0 7
12 -7 0 0 0
13 -7 0 31 7
14 359 140 273 7
15 523 523 609 515
16 601 570 632 585
17 640 617 648 625
18 562 625 179 640
19 109 265 78 148
20 85 93 70 70
21 54 54 39 54
22 46 46 31 39
23 39 31 23 31
24 15 23 15 23
25 7 15 15 15
26 0 15 7 15
27 0 7 7 7
28 0 7 7 7
29 0 7 7 0
30 7 0 7 0
31 7 7 7 0
32 -7 0 -23 7
33 -15 -31 -39 -15
34 -31 -39 -46 -23
35 -39 -46 -39 -23
36 -39 -46 -31 -39
37 -23 -23 -23 -23
38 -23 -23 -15 -15
39 -15 -23 -15 -15
Andrew Lunn (13):
net: phy: Add cable test support to state machine
net: phy: Add support for polling cable test
net: ethtool: netlink: Add support for triggering a cable test
net: ethtool: Add Properties for cable test reports.
net: ethtool: Make helpers public
net: phy: Add infrastructure for reporting cable test results
net: phy: cable test: Use request seq in broadcast reply
net: phy: Add helpers for reporting test results
net: phy: marvell: Add cable test support
net: phy: Allow options to be passed to the cable test
net: phy: Add helpers and attributes for amplitude graph
net: phy: marvell: Add support for amplitude graph
net: phy: Put interface into oper testing during cable test
drivers/net/phy/Kconfig | 1 +
drivers/net/phy/marvell.c | 374 +++++++++++++++++++++++++++
drivers/net/phy/phy.c | 215 +++++++++++++++
include/linux/ethtool_netlink.h | 12 +
include/linux/phy.h | 49 ++++
include/uapi/linux/ethtool_netlink.h | 87 +++++++
net/ethtool/actions.c | 84 ++++++
net/ethtool/netlink.c | 14 +-
net/ethtool/netlink.h | 7 +-
9 files changed, 838 insertions(+), 5 deletions(-)
--
2.20.1
