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Date: Sat, 25 Jul 2020 11:34:50 +0200 From: Marek Behun <marek.behun@....cz> To: Pavel Machek <pavel@....cz> Cc: netdev@...r.kernel.org, linux-leds@...r.kernel.org, jacek.anaszewski@...il.com, Dan Murphy <dmurphy@...com>, Ondřej Jirman <megous@...ous.com>, Russell King <linux@...linux.org.uk>, Thomas Petazzoni <thomas.petazzoni@...tlin.com>, Gregory Clement <gregory.clement@...tlin.com>, Andrew Lunn <andrew@...n.ch>, linux-kernel@...r.kernel.org Subject: Re: [PATCH RFC leds + net-next v3 2/2] net: phy: marvell: add support for PHY LEDs via LED class On Sat, 25 Jul 2020 11:23:39 +0200 Pavel Machek <pavel@....cz> wrote: > Hi! > > > +static const struct marvell_led_mode_info marvell_led_mode_info[] = { > > + { "link", { 0x0, -1, 0x0, -1, -1, -1, }, 0 }, > > + { "link/act", { 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, }, 0 }, > > + { "1Gbps/100Mbps/10Mbps", { 0x2, -1, -1, -1, -1, -1, }, 0 }, > > is this "1Gbps-10Mbps"? Most of these modes mean "ON on event", eg "link" means ON when link up, else OFF. " "tx" means ON on when transmitting, else OFF "act" means ON when activity, else OFF "copper" means ON when copper link up, else OFF but some are blinking modes "blink-act" means BLINK when activity, else OFF Some modes can do ON and BLINK, these have one '/' in their name "link/act" means ON when link up, BLINK on activity, else OFF "link/rx" means ON when link up, BLINK on receive, else OFF there is one mode, "1Gbps/100Mbps/10Mbps", which behaves differently: blinks 3 times when linked on 1Gbps blinks 2 times when linked on 100Mbps blinks 1 time when linked on 10Mbps (and this blinking is repeating, ie blinks 3 times, pause, blinks 3 times, pause) Some modes are disjunctive: "100Mbps-fiber" means ON when linked on 100Mbps or via fiber, else OFF > > > + { "act", { 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, }, 0 }, > > + { "blink-act", { 0x4, 0x4, 0x4, 0x4, 0x4, 0x4, }, 0 }, > > + { "tx", { 0x5, -1, 0x5, -1, 0x5, 0x5, }, 0 }, > > + { "tx", { -1, -1, -1, 0x5, -1, -1, }, L3V5_TRANS }, > > + { "rx", { -1, -1, -1, -1, 0x0, 0x0, }, 0 }, > > + { "rx", { -1, 0x0, -1, -1, -1, -1, }, L1V0_RECV }, > > + { "copper", { 0x6, -1, -1, -1, -1, -1, }, 0 }, > > + { "copper", { -1, 0x0, -1, -1, -1, -1, }, L1V0_COPPER }, > > + { "1Gbps", { 0x7, -1, -1, -1, -1, -1, }, 0 }, > > + { "link/rx", { -1, 0x2, -1, 0x2, 0x2, 0x2, }, 0 }, > > + { "100Mbps-fiber", { -1, 0x5, -1, -1, -1, -1, }, L1V5_100_FIBER }, > > + { "100Mbps-10Mbps", { -1, 0x5, -1, -1, -1, -1, }, L1V5_100_10 }, > > + { "1Gbps-100Mbps", { -1, 0x6, -1, -1, -1, -1, }, 0 }, > > + { "1Gbps-10Mbps", { -1, -1, 0x6, 0x6, -1, -1, }, 0 }, > > + { "100Mbps", { -1, 0x7, -1, -1, -1, -1, }, 0 }, > > + { "10Mbps", { -1, -1, 0x7, -1, -1, -1, }, 0 }, > > + { "fiber", { -1, -1, -1, 0x0, -1, -1, }, L3V0_FIBER }, > > + { "fiber", { -1, -1, -1, 0x7, -1, -1, }, L3V7_FIBER }, > > + { "FullDuplex", { -1, -1, -1, 0x7, -1, -1, }, L3V7_DUPLEX }, > > + { "FullDuplex", { -1, -1, -1, -1, 0x6, 0x6, }, 0 }, > > + { "FullDuplex/collision", { -1, -1, -1, -1, 0x7, 0x7, }, 0 }, > > + { "FullDuplex/collision", { -1, -1, 0x2, -1, -1, -1, }, L2V2_DUPLEX }, > > + { "ptp", { -1, -1, 0x2, -1, -1, -1, }, L2V2_PTP }, > > + { "init", { -1, -1, 0x2, -1, -1, -1, }, L2V2_INIT }, > > + { "los", { -1, -1, -1, 0x0, -1, -1, }, L3V0_LOS }, > > + { "hi-z", { 0xa, 0xa, 0xa, 0xa, 0xa, 0xa, }, 0 }, > > + { "blink", { 0xb, 0xb, 0xb, 0xb, 0xb, 0xb, }, 0 }, > > +}; > > Certainly more documentation will be required here, what "ptp" setting > does, for example, is not very obvious to me. "ptp" means it will light up when the PTP functionality is enabled on the PHY and a PTP packet is received. > Best regards, > Pavel
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