Re: Broadcom 5701 (3com 3c996B-T) phy support in 4.5?
In article [EMAIL PROTECTED], Jonathan Stone [EMAIL PROTECTED] wrote: Apologies if this is the wrong place to ask this I just got a 3com 3c996B-T with a bcm5701 chip. It doesn't work with a kernel built from 4.5-RC source pulled Friday: the gigabit phy goes unrecognized, gets attached as a ukphy, which (obviously) doesn't support 1000baseTX. Is this expected to work? Its hard to tell from if_bge. I discovered a suitable value for lines for sys/dev/mii/miidevs in the Debian Linux driver: +model xxBROADCOM BCM5701 0x0011 BCM5701 10/100/1000baseTX PHY rebuilt the .h file, and added corresponding lines to the probe routine in bgrphy.c. That gets the builtin 5400-compatible gigabit PHY recognized -- it auto-negotiates with my gigabit switch, and gives the same ttcp same speed as a 5700-- but i still get another 30-odd ukphy devices attached on that miibus instance. Yep, I went through the same exercise. Apparently the 5701 doesn't bother to decode the phy address. The driver just has to know to use phy number 1. (Boo, hiss!) I worked around it by making bge_miibus_readreg and bge_miibus_writereg return 0 if the device is a 5701 and the phy number isn't 1. That way, the extra phys never get probed. With that change, it works except that I'm getting frequent bogus bge0: gigabit link up messages. I haven't been able to figure out why yet. They don't appear to affect packet flow at all. From investigating the Linux driver, I gather there are a few features in these chips which may need workarounds (e.g., the Debian driver includes a new firmware image for some 5701 revs'; and forces master mode in some revs, to avoid a CRC bug. Caveat emptor.) Yes, there are quite a few mysterious workarounds in that driver. John -- John Polstra John D. Polstra Co., Inc.Seattle, Washington USA Disappointment is a good sign of basic intelligence. -- Chögyam Trungpa To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
Re: Broadcom 5701 (3com 3c996B-T) phy support in 4.5?
On Wed, Jan 30, 2002 at 11:41:05AM -0800, John Polstra wrote: From investigating the Linux driver, I gather there are a few features in these chips which may need workarounds (e.g., the Debian driver includes a new firmware image for some 5701 revs'; and forces master mode in some revs, to avoid a CRC bug. Caveat emptor.) Yes, there are quite a few mysterious workarounds in that driver. We've had alot of trouble with the builtin card in our Dell 2550s. I'm going to try swapping hardware to see if we've got a bad machine, but I suspect the chip is just plain broken. Where can you get the Linux driver from? I might try stealing some of the hacks in it to see if it fixes the problems we're seeing. David. To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
Re: Broadcom 5701 (3com 3c996B-T) phy support in 4.5?
In article [EMAIL PROTECTED], David Malone [EMAIL PROTECTED] wrote: We've had alot of trouble with the builtin card in our Dell 2550s. I'm going to try swapping hardware to see if we've got a bad machine, but I suspect the chip is just plain broken. Well, it seems to work OK with the Linux driver. Where can you get the Linux driver from? I believe it's in the standard Linux kernel. Just grab the latest one from kernel.org. John -- John Polstra John D. Polstra Co., Inc.Seattle, Washington USA Disappointment is a good sign of basic intelligence. -- Chögyam Trungpa To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
Re: Broadcom 5701 (3com 3c996B-T) phy support in 4.5?
In article [EMAIL PROTECTED], Jonathan Stone [EMAIL PROTECTED] wrote: Thanks for the responses. Any chance the miidevs hack and phy workarounds will make it into -current or FreeBSD 4.5? I'm not going to commit anything unless/until I get the driver working properly with the 5701, including understanding and eliminating those gigabit link up messages. John -- John Polstra John D. Polstra Co., Inc.Seattle, Washington USA Disappointment is a good sign of basic intelligence. -- Chögyam Trungpa To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
