News: 0001595882

  ARM Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life (Terry Pratchett, Jingo)

Broadcom "BNG_RE" Next-Generation RoCE Driver Slated For Linux 6.19

([Linux Networking] 6 Hours Ago BNG_RE)


Queued up via the Linux kernel's RDMA development Git tree is "BNG_RE" as the next-generation RoCE driver from Broadcom.

This RDMA over Converged Ethernet "RoCE" driver is for Broadcom's BCM5770X chip family. Introduced in the Linux 6.18 kerne lis the "BNG_EN" driver as the [1]new Broadcom network driver for the BCM5770X series while for Linux 6.19 is this BNG_RE driver for the RDMA support for this new Broadcom hardware.

The Broadcom BCM5770X chip family supports 50 / 100 / 200 / 400 / 800G link speeds. This BNG_RE driver for Linux 6.19 contains all the basic hardware enablement and driver infrastructure, coming in at just around three thousand lines of C code.

Those interested in the Broadcom BNG_RE driver can see [2]this patch series on the mailing list which in the past week was queued into [3]RDMA.git and thus expected to be submitted for the imminent Linux 6.19 merge window.



[1] https://www.phoronix.com/news/Broadcom-BNGE-Ethernet-Driver

[2] https://lore.kernel.org/all/20251117171136.128193-1-siva.kallam@broadcom.com/

[3] https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/log/


I've said some stupid things and some wrong things, but not that. No one
involved in computers would ever say that a certain amount of memory is enough
for all time ... I keep bumping into that silly quotation attributed to me that
says 640 K of memory is enough. There's never a citation; the quotation just
floats like a rumor, repeated again and again.

-- Gates (19 January 1996), "Career Opportunities in Computing-and More".
Bloomberg Business News

Do you realize the pain the industry went through while the IBM PC was limited
to 640 K? The machine was going to be 512 K at one point, and we kept pushing
it up. I never said that statement - I said the opposite of that.

-- "Gates talks". U.S. News & World Report. August 20, 2001. Retrieved on
October 8, 2014.

I have to say that in 1981, making those decisions, I felt like I was providing
enough freedom for 10 years. That is, a move from 64k to 640k felt like
something that would last a great deal of time. Well, it didnīt - it took about
only 6 years before people started to see that as a real problem.

-- speech to the Computer Science Club at the University of Waterloo, 1989

-- https://en.wikiquote.org/wiki/Bill_Gates#Misattributed