git: kernel - Rejigger random number generator to be per-cpu 1/2

[Matthew Dillon]

commit 1cb34a03363bd4f58f6d6756fdb48f44c09d23a4
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Sat Feb 1 22:55:12 2020 -0800

    kernel - Rejigger random number generator to be per-cpu 1/2
    
    * Refactor all the kernel random number generation code to
      operate on a per-cpu basis.  The csprng, ibaa, and l15
      structures are now per-cpu.
    
    * RDRAND now runs a periodic timer callback on all available cpus
      rather than just on cpu 0, allowing rdrand data to mix on
      each cpu's rng independently.
    
    * The nrandom helper thread now chains state with an iteration
      between cpus, injecting a random data buffer generated from
      the previous cpu into the mix of the current.

Summary of changes:
 sys/dev/crypto/hifn/hifn7751.c |   5 +-
 sys/dev/crypto/rdrand/rdrand.c |  35 ++-
 sys/dev/crypto/safe/safe.c     |   2 +-
 sys/dev/crypto/ubsec/ubsec.c   |   2 +-
 sys/dev/netif/oce/oce_mbox.c   |   2 +-
 sys/dev/netif/sbsh/if_sbsh.c   |   2 +-
 sys/kern/kern_memio.c          |   4 +-
 sys/kern/kern_nrandom.c        | 474 +++++++++++++++++++++++++----------------
 sys/kern/kern_proc.c           |   2 +-
 sys/kern/kern_uuid.c           |   4 +-
 sys/kern/subr_csprng.c         |  90 ++------
 sys/libkern/arc4random.c       |   2 +-
 sys/net/sppp/if_spppsubr.c     |   2 +-
 sys/netinet/ip_id.c            |   2 +-
 sys/netinet/tcp_subr.c         |   2 +-
 sys/sys/csprng.h               |  14 +-
 sys/sys/ibaa.h                 |  26 +++
 sys/sys/random.h               |  29 +--
 18 files changed, 400 insertions(+), 299 deletions(-)
 create mode 100644 sys/sys/ibaa.h

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/1cb34a03363bd4f58f6d6756fdb48f44c09d23a4


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