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History log of /src/sys/dev/ic/hmevar.h
RevisionDateAuthorComments
 1.24  13-Apr-2015  riastradh Convert sys/dev to use <sys/rndsource.h>.
 1.23  02-Feb-2012  tls branches: 1.23.6; 1.23.24;
Entropy-pool implementation move and cleanup.

1) Move core entropy-pool code and source/sink/sample management code
to sys/kern from sys/dev.

2) Remove use of NRND as test for presence of entropy-pool code throughout
source tree.

3) Remove use of RND_ENABLED in device drivers as microoptimization to
avoid expensive operations on disabled entropy sources; make the
rnd_add calls do this directly so all callers benefit.

4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might
have lead to slight entropy overestimation for some sources.

5) Add new source types for environmental sensors, power sensors, VM
system events, and skew between clocks, with a sample implementation
for each.

ok releng to go in before the branch due to the difficulty of later
pullup (widespread #ifdef removal and moved files). Tested with release
builds on amd64 and evbarm and live testing on amd64.
 1.22  19-Nov-2011  tls branches: 1.22.2;
First step of random number subsystem rework described in
<20111022023242.BA26F14A158@mail.netbsd.org>. This change includes
the following:

An initial cleanup and minor reorganization of the entropy pool
code in sys/dev/rnd.c and sys/dev/rndpool.c. Several bugs are
fixed. Some effort is made to accumulate entropy more quickly at
boot time.

A generic interface, "rndsink", is added, for stream generators to
request that they be re-keyed with good quality entropy from the pool
as soon as it is available.

The arc4random()/arc4randbytes() implementation in libkern is
adjusted to use the rndsink interface for rekeying, which helps
address the problem of low-quality keys at boot time.

An implementation of the FIPS 140-2 statistical tests for random
number generator quality is provided (libkern/rngtest.c). This
is based on Greg Rose's implementation from Qualcomm.

A new random stream generator, nist_ctr_drbg, is provided. It is
based on an implementation of the NIST SP800-90 CTR_DRBG by
Henric Jungheim. This generator users AES in a modified counter
mode to generate a backtracking-resistant random stream.

An abstraction layer, "cprng", is provided for in-kernel consumers
of randomness. The arc4random/arc4randbytes API is deprecated for
in-kernel use. It is replaced by "cprng_strong". The current
cprng_fast implementation wraps the existing arc4random
implementation. The current cprng_strong implementation wraps the
new CTR_DRBG implementation. Both interfaces are rekeyed from
the entropy pool automatically at intervals justifiable from best
current cryptographic practice.

In some quick tests, cprng_fast() is about the same speed as
the old arc4randbytes(), and cprng_strong() is about 20% faster
than rnd_extract_data(). Performance is expected to improve.

The AES code in src/crypto/rijndael is no longer an optional
kernel component, as it is required by cprng_strong, which is
not an optional kernel component.

The entropy pool output is subjected to the rngtest tests at
startup time; if it fails, the system will reboot. There is
approximately a 3/10000 chance of a false positive from these
tests. Entropy pool _input_ from hardware random numbers is
subjected to the rngtest tests at attach time, as well as the
FIPS continuous-output test, to detect bad or stuck hardware
RNGs; if any are detected, they are detached, but the system
continues to run.

A problem with rndctl(8) is fixed -- datastructures with
pointers in arrays are no longer passed to userspace (this
was not a security problem, but rather a major issue for
compat32). A new kernel will require a new rndctl.

The sysctl kern.arandom() and kern.urandom() nodes are hooked
up to the new generators, but the /dev/*random pseudodevices
are not, yet.

Manual pages for the new kernel interfaces are forthcoming.
 1.21  18-Sep-2009  tsutsui branches: 1.21.12;
hme_reset() is no longer called from bus attachments so make it static.
 1.20  08-Sep-2009  tsutsui - split out chip reset ops from hme_stop() into a new function
hme_chipreset() to make hme_stop() match struct ifnet API
- set ifp->if_timer in hme_start() if any TX packets are queued
- also clear ifp->if_timer and ifp->if_flags in hme_stop()
- replace shutdownhook_establish(9) with pmf_device_reigster1(9)
Briefly checked hme at pci.
 1.19  17-May-2009  tsutsui Split device_t/softc.
Tested PCI HME on i386. Sbus HME is compile test only.
 1.18  16-Apr-2009  tsutsui u_intNN_t -> uintNN_t
 1.17  28-Apr-2008  martin branches: 1.17.8; 1.17.14;
Remove clause 3 and 4 from TNF licenses
 1.16  19-Jan-2008  dyoung branches: 1.16.6; 1.16.8; 1.16.10;
Remove unused sc_media #define.
 1.15  04-Mar-2007  christos branches: 1.15.16; 1.15.22; 1.15.28;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
 1.14  11-Dec-2005  christos branches: 1.14.26;
merge ktrace-lwp.
 1.13  18-Feb-2005  heas branches: 1.13.6;
Handle interface IFF_DEBUG flags sooner in hme_ioctl and cache a copy of
sc_ethercom.ec_capenable such that we can properly adjust the max frame size
when vlan tagging is enabled/disabled.
 1.12  04-Feb-2005  perry de-__P
 1.11  28-Jun-2004  heas branches: 1.11.4; 1.11.6;
do not reset the chip (and subsequently the phy) when unnecessary; that is,
for address changes, multicast filter changes, or adjusting promiscuous mode.
Fixes resetting the phy for things like start/stopping tcpdump.

ok petrov@, martin@, pk@
 1.10  13-Feb-2003  pk branches: 1.10.2;
Preserve the current PHY select bit in the MIF configuration register
in mii_readreg()/mii_writereg(). Also restore this bit based on the
currently selected media instance every time we need to reinitialise
the interface.
 1.9  18-Dec-2002  martin Since we have to select one of the two possible PHYs when configuring
the MIF Configuration Register PHY_Select, there is no use in pretending
we could talk to both at the MII interface layer.

If both PHY are reported to be present, prefer the external one.

Remember this selection and enforce it in hme_mii_{read,write}reg.
This fixes problems with one of the dual hmes in Netra T1s.

From OpenBSD.
 1.8  26-Nov-2001  tron Back out new "hme" driver because it causes a performance regression on
"netio" on an U5.
 1.7  25-Nov-2001  tron Pull in Jason Wright's latest changes to the "hme" driver from OpenBSD.
This supports direct DMA from and into mbuf cluster, and VLAN
handling is done a bit differently.
 1.6  28-Sep-2000  tsutsui branches: 1.6.2; 1.6.4;
6 -> ETHER_ADDR_LEN
 1.5  25-Jun-2000  eeh Make PCI HME work.
 1.4  09-May-2000  pk branches: 1.4.4;
Conform bus_dmamem_{alloc,map} usage to bus_dma(9) specs.
 1.3  23-Mar-2000  thorpej New callout mechanism with two major improvements over the old
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.

The old timeout()/untimeout() API has been removed from the kernel.
 1.2  18-Dec-1999  pk Add support for selecting a PHY (i.e. built-in transceiver vs. external MII
device) by using media/instance parameters.
 1.1  27-Jun-1999  pk branches: 1.1.2; 1.1.4; 1.1.10;
HME ethernet driver.
Note: this is work in progress; needs testing and tweaking. mgr has
promised to do that..
 1.1.10.1  27-Dec-1999  wrstuden Pull up to last week's -current.
 1.1.4.1  20-Nov-2000  bouyer Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.
 1.1.2.2  01-Jul-1999  thorpej Sync w/ -current.
 1.1.2.1  27-Jun-1999  thorpej file hmevar.h was added on branch chs-ubc2 on 1999-07-01 23:32:27 +0000
 1.4.4.1  31-Jul-2000  mrg pull up 1.5 (approved by thorpej):
>Get PCI HME working.
 1.6.4.1  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.6.2.2  19-Dec-2002  thorpej Sync with HEAD.
 1.6.2.1  08-Jan-2002  nathanw Catch up to -current.
 1.10.2.5  04-Mar-2005  skrll Sync with HEAD.

Hi Perry!
 1.10.2.4  04-Feb-2005  skrll Sync with HEAD.
 1.10.2.3  21-Sep-2004  skrll Fix the sync with head I botched.
 1.10.2.2  18-Sep-2004  skrll Sync with HEAD.
 1.10.2.1  03-Aug-2004  skrll Sync with HEAD
 1.11.6.2  19-Mar-2005  yamt sync with head. xen and whitespace. xen part is not finished.
 1.11.6.1  12-Feb-2005  yamt sync with head.
 1.11.4.1  29-Apr-2005  kent sync with -current
 1.13.6.2  21-Jan-2008  yamt sync with head
 1.13.6.1  03-Sep-2007  yamt sync with head.
 1.14.26.1  12-Mar-2007  rmind Sync with HEAD.
 1.15.28.1  20-Jan-2008  bouyer Sync with HEAD
 1.15.22.1  18-Feb-2008  mjf Sync with HEAD.
 1.15.16.1  23-Mar-2008  matt sync with HEAD
 1.16.10.5  11-Mar-2010  yamt sync with head
 1.16.10.4  16-Sep-2009  yamt sync with head
 1.16.10.3  20-Jun-2009  yamt sync with head
 1.16.10.2  04-May-2009  yamt sync with head.
 1.16.10.1  16-May-2008  yamt sync with head.
 1.16.8.1  18-May-2008  yamt sync with head.
 1.16.6.1  02-Jun-2008  mjf Sync with HEAD.
 1.17.14.2  23-Jul-2009  jym Sync with HEAD.
 1.17.14.1  13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.17.8.1  28-Apr-2009  skrll Sync with HEAD.
 1.21.12.1  17-Apr-2012  yamt sync with head
 1.22.2.1  18-Feb-2012  mrg merge to -current.
 1.23.24.1  06-Jun-2015  skrll Sync with HEAD
 1.23.6.1  03-Dec-2017  jdolecek update from HEAD

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