Date: Wed, 16 Jun 2010 17:14:47 -0700 From: Jack Vogel <jfvogel@gmail.com> To: Alexander Sack <pisymbol@gmail.com> Cc: Juli Mallett <jmallett@freebsd.org>, freebsd-net@freebsd.org, Andrew Boyer <aboyer@averesystems.com> Subject: Re: Dual-rate transceivers with ixgbe? Message-ID: <AANLkTim0QkU4WYCRlmkONHaqaCY9KwBwpp_HFgL2buts@mail.gmail.com> In-Reply-To: <AANLkTinramcCiwHnfj9Ln84ivemWKPGfOWwPwDscbAND@mail.gmail.com> References: <AANLkTinO9NZ8F9TeS68I2ULQgdlMGzlXkinCsywWosAM@mail.gmail.com> <AANLkTinS607kd3wc3F2WWmA6Zk9KL4GhscxEHPtcvxA5@mail.gmail.com> <AANLkTimkxOn9h6SAkTPDqfUM9kl2CZiFrZC_BuNDfRyB@mail.gmail.com> <AANLkTikcQMXk8UebmaynOeeInGiwx8yr0NMGE1yJfm8u@mail.gmail.com> <AANLkTil_YRvU54qHtIMO7mP4yYjojeHVrCHaRcl2K2Ug@mail.gmail.com> <AANLkTim5Ao9nSh6T6HF7NztLgvbTzxuVyr8lSXAJ7bMo@mail.gmail.com> <AANLkTim9-Za5mzLTw7MDAHY_TuIQsQ0SF0_1xpxyGY7v@mail.gmail.com> <AANLkTik-V2frmirwBLtg4RemdEVvPhUmVsOP7CqEkvUi@mail.gmail.com> <AANLkTikqjQic_M3mX7OTx-V0OJxbk4vzxajPmHmIUAKa@mail.gmail.com> <AANLkTikjs42mE5QHnSvZ9x9DI1xfYowvIES-DRORz6hH@mail.gmail.com> <AANLkTilqb4y0zEmom0jyg-HEi4yp8D3nkkbUWGHUjWPt@mail.gmail.com> <AANLkTinOnzvjrmmLb3w5jOYEk02CY2tWCwnKxTv8sHS8@mail.gmail.com> <82D310BD-48DE-4F79-84C6-356AB4F04C42@averesystems.com> <AANLkTikDM5l71isz28jJNv7nk9K-kmqTKptAC_yY3ACq@mail.gmail.com> <AANLkTimHAH9rNU9wPgykEKwLwm4sGAYEgRx_hkdXjwGm@mail.gmail.com> <AANLkTil8vIRF8Y4pruy01AgLkhyvg5fJucbw4LSCDNCG@mail.gmail.com> <AANLkTinramcCiwHnfj9Ln84ivemWKPGfOWwPwDscbAND@mail.gmail.com>
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You cannot force the link speed, but my validation engineer just checked the current driver and it links down to 1G just fine, but you cannot do it manually, it is only negotiated. I am going to look at the code to add the manual control. Jack On Wed, Jun 16, 2010 at 12:27 PM, Alexander Sack <pisymbol@gmail.com> wrote: > On Mon, Jun 14, 2010 at 1:19 PM, Jack Vogel <jfvogel@gmail.com> wrote: > > I am NOT going to accept patches to defeat the code that Intel has put in > > place, > > if you want to hack the code that's your perogative but its like any > other > > custom > > change, you made it, you manage it. > > > > 1G SFP do not work and are not supported, there IS a supported SFP+ > > multispeed > > that can link at 1G, this was tested here. > > > Jack, understood. I won't submit my final patch with the work around to > you. > > However, I have a 82599EB with an Intel dual-rate SFP+ receiver which > will not come in 1G mode no matter how hard I try. I have dumped the > AUTOC and LINKS register and the card is not happy. > > Basically the driver: > > Writes 0xC0905004 to AUTOC to start AN/Link startup and the LINKS > immediately reports 0x203c0001 before looking in > setup_multispeed_fiber->setup_mac_link_82599 etc. > > Can you confirm with your test engineer that the Intel dual-rate SFP+ > works in 1Gbe mode on FreeBSD? > > Thanks! > > -aps > > PS The cables I have are good and the optical tester shows they are > active as well as plugging them into another card with a standard SFP > module (Finisar). >
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