From: ѽ҉ᶬḳ℠ <vtol@gmx.net>
To: netdev@vger.kernel.org
Subject: [drivers/net/phy/sfp] intermittent failure in state machine checks
Date: Thu, 9 Jan 2020 13:47:31 +0000 [thread overview]
Message-ID: <d8d595ff-ec35-3426-ec43-9afd67c15e3d@gmx.net> (raw)
On node with 4.19.93 and a SFP module (specs at the bottom) the
following is intermittently observed:
libphy: SFP I2C Bus: probed
sfp sfp: module ALLNET ALL4781 rev V3.4 sn 0000000FC9157640 dc 29-03-18
sfp sfp: unknown connector, encoding 8b10b, nominal bitrate 1.3Gbps +0% -0%
sfp sfp: 1000BaseSX+ 1000BaseLX- 1000BaseCX- 1000BaseT- 100BaseTLX-
1000BaseFX- BaseBX10- BasePX-
sfp sfp: 10GBaseSR- 10GBaseLR- 10GBaseLRM- 10GBaseER-
sfp sfp: Wavelength 0nm, fiber lengths:
sfp sfp: 9µm SM : unsupported
sfp sfp: 62.5µm MM OM1: unsupported/unspecified
sfp sfp: 50µm MM OM2: unsupported/unspecified
sfp sfp: 50µm MM OM3: unsupported/unspecified
sfp sfp: 50µm MM OM4: 2.540km
sfp sfp: Options: retimer
sfp sfp: Diagnostics:
sfp sfp: module transmit fault indicated
sfp sfp: module transmit fault recovered
sfp sfp: module transmit fault indicated
sfp sfp: module persistently indicates fault, disabling
To my humble understanding that pertains to checks in state machine
- SFP_S_WAIT_LOS
- SFP_S_LINK_UP
being done via the I2C | SM bus but it is not clear to me what causes
the check to fail and how to remedy it.
____
SFP module specs
Identifier : 0x03 (SFP)
Extended identifier : 0x04 (GBIC/SFP defined by
2-wire interface ID)
Connector : 0x22 (RJ45)
Transceiver codes : 0x00 0x00 0x00 0x01 0x00
0x00 0x00 0x00 0x00
Transceiver type : Ethernet: 1000BASE-SX
Encoding : 0x01 (8B/10B)
BR, Nominal : 1300MBd
Rate identifier : 0x00 (unspecified)
Length (SMF,km) : 0km
Length (SMF) : 0m
Length (50um) : 0m
Length (62.5um) : 0m
Length (Copper) : 255m
Length (OM3) : 0m
Laser wavelength : 0nm
Vendor name : ALLNET
Vendor OUI : 00:0f:c9
Vendor PN : ALL4781
Vendor rev : V3.4
Option values : 0x08 0x00
Option : Retimer or CDR implemented
BR margin, max : 0%
BR margin, min : 0%
next reply other threads:[~2020-01-09 13:47 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-09 13:47 ѽ҉ᶬḳ℠ [this message]
2020-01-09 14:41 ` [drivers/net/phy/sfp] intermittent failure in state machine checks Andrew Lunn
2020-01-09 15:03 ` ѽ҉ᶬḳ℠
2020-01-09 15:58 ` Russell King - ARM Linux admin
2020-01-09 17:35 ` ѽ҉ᶬḳ℠
2020-01-09 17:43 ` Russell King - ARM Linux admin
2020-01-09 19:01 ` ѽ҉ᶬḳ℠
2020-01-09 19:42 ` ѽ҉ᶬḳ℠
2020-01-09 21:38 ` Russell King - ARM Linux admin
2020-01-09 21:59 ` Russell King - ARM Linux admin
2020-01-09 22:40 ` ѽ҉ᶬḳ℠
2020-01-09 23:10 ` Russell King - ARM Linux admin
2020-01-09 23:50 ` ѽ҉ᶬḳ℠
2020-01-10 0:18 ` ѽ҉ᶬḳ℠
2020-01-10 10:26 ` Russell King - ARM Linux admin
2020-01-10 9:27 ` Russell King - ARM Linux admin
2020-01-10 9:50 ` ѽ҉ᶬḳ℠
2020-01-10 10:19 ` ѽ҉ᶬḳ℠
2020-01-10 11:46 ` Russell King - ARM Linux admin
2020-01-10 13:22 ` Andrew Lunn
2020-01-10 13:38 ` ѽ҉ᶬḳ℠
2020-01-10 11:44 ` Russell King - ARM Linux admin
2020-01-10 12:45 ` ѽ҉ᶬḳ℠
2020-01-10 12:53 ` Russell King - ARM Linux admin
2020-01-10 15:02 ` ѽ҉ᶬḳ℠
2020-01-10 15:09 ` Russell King - ARM Linux admin
2020-01-10 15:45 ` ѽ҉ᶬḳ℠
2020-01-10 16:32 ` Russell King - ARM Linux admin
2020-01-10 16:53 ` ѽ҉ᶬḳ℠
2020-01-10 17:08 ` Russell King - ARM Linux admin
2020-01-10 17:19 ` ѽ҉ᶬḳ℠
2020-01-10 17:38 ` Russell King - ARM Linux admin
2020-01-10 18:44 ` ѽ҉ᶬḳ℠
2020-01-10 19:01 ` Russell King - ARM Linux admin
2020-01-10 19:36 ` ѽ҉ᶬḳ℠
2020-01-10 19:55 ` Russell King - ARM Linux admin
2020-01-10 20:27 ` ѽ҉ᶬḳ℠
2020-01-10 19:23 ` Andrew Lunn
2020-01-11 12:58 ` ѽ҉ᶬḳ℠
2020-01-09 21:34 ` Russell King - ARM Linux admin
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