In article <[EMAIL PROTECTED]>, Andrew Gallatin <[EMAIL PROTECTED]> wrote: > Kenneth D. Merry writes: > > I suppose it would be good to see what NIC drivers in the tree can receive > > into or send from multiple chunks of data, and what their requirements are. > > (how many scatter/gather segments they can handle, what is the maximum MTU, > > etc.) > > If you're just looking at the code, then this would be hard. All the > current drivers (with the exception of em) are coded to take one > physically contiguous private buffer. I'm pretty sure that most of > them are capable of doing scatter DMA, but I don't have the > programming docs.
The BCM570x chips (bge driver) definitely need a single physically contiguous buffer for each received packet. John -- John Polstra John D. Polstra & Co., Inc. Seattle, Washington USA "Disappointment is a good sign of basic intelligence." -- Ch�gyam Trungpa To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-net" in the body of the message
