netdev@xxxxxxxxxxxxxxx might be a better place to ask this, or even e1000-devel@xxxxxxxxxxxx On 6/15/06, kewlemer <kewlemer@xxxxxxxxx> wrote:
Hi all, I'm trying to understand Intel Gigabit Ethernet Controller driver's way of doing auto-negotiation, and forced duplex, speed and flow control. [ See http://www.linux-m32r.org/lxr/http/source/drivers/net/e1000/e1000_hw.c ] I have the following questions :- 1. http://www.linux-m32r.org/lxr/http/source/drivers/net/e1000/e1000_hw.c#L2000 Here, in line 2011, why is flow control turned off when forcing speed and duplex ?
It is turned off *unless* it is forced to be enabled on the command line.
2. I understand from Intel's manual that in case of fiber, we won't have auto-negotiation (it's always 1000Mbps, Duplex). So comments in lines 1058 and 1102 confuse me. Is it that though we don't auto-negotiate speed and duplex for fiber, flow-control can still be configured ?
the same answer above applies here, if you force anything, you must specify settings for everything that you want enabled (speed/duplex/flowcontrol) Jesse - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
