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Groups > linux.kernel > #1575717
| From | Andrew Lunn <andrew@lunn.ch> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH net-next 4/4] net: dsa: Do not clobber PHY link outside of state machine |
| Date | 2017-02-07 14:20 +0100 |
| Message-ID | <t8dQC-3lb-9@gated-at.bofh.it> (permalink) |
| References | <t81mq-3ns-9@gated-at.bofh.it> <t81mq-3ns-7@gated-at.bofh.it> <t81FL-3Jw-1@gated-at.bofh.it> <t8crv-2iU-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
> Related is that polling the phy status every second can be bad news for > system latency. > Typically it involves bit-bashing an interface with spin-delays to > meet the slow timings (with extra delays to allow for posted writes). > An alternative would be to do a very slow bit-bang on each timer tick, > this would need to be sped up and finished before any other actions. Or just use PHY interrupts. That completely stops the MDIO polling. Andrew
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[PATCH net-next 0/4] net: Incorrect use of phy_read_status() Florian Fainelli <f.fainelli@gmail.com> - 2017-02-07 01:00 +0100
[PATCH net-next 4/4] net: dsa: Do not clobber PHY link outside of state machine Florian Fainelli <f.fainelli@gmail.com> - 2017-02-07 01:00 +0100
Re: [PATCH net-next 4/4] net: dsa: Do not clobber PHY link outside of state machine Andrew Lunn <andrew@lunn.ch> - 2017-02-07 01:20 +0100
RE: [PATCH net-next 4/4] net: dsa: Do not clobber PHY link outside of state machine David Laight <David.Laight@ACULAB.COM> - 2017-02-07 12:50 +0100
Re: [PATCH net-next 4/4] net: dsa: Do not clobber PHY link outside of state machine Andrew Lunn <andrew@lunn.ch> - 2017-02-07 14:20 +0100
[PATCH net-next 3/4] net: netcp: Do not clobber PHY link outside of state machine Florian Fainelli <f.fainelli@gmail.com> - 2017-02-07 01:00 +0100
[PATCH net-next 2/4] net: pxa168_eth: Do not clobber PHY link outside of state machine Florian Fainelli <f.fainelli@gmail.com> - 2017-02-07 01:00 +0100
[PATCH net-next 1/4] net: mv643xx_eth: Do not clobber PHY link outside of state machine Florian Fainelli <f.fainelli@gmail.com> - 2017-02-07 01:00 +0100
Re: [PATCH net-next 1/4] net: mv643xx_eth: Do not clobber PHY link outside of state machine Andrew Lunn <andrew@lunn.ch> - 2017-02-07 01:20 +0100
Re: [PATCH net-next 0/4] net: Incorrect use of phy_read_status() David Miller <davem@davemloft.net> - 2017-02-07 20:00 +0100
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