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History log of /src/sys/dev/ic/gemvar.h
RevisionDateAuthorComments
 1.28  30-Jan-2021  jdc Improve handling of receive overflows. When we get an overflow, don't
reset the chip if we are still receiving packets. Real overflows can
happen when network and CPU(s) are loaded, so the reset is not needed
in this case.
Add a counter to track receive overflows (when GEM_COUNTERS is defined).

This reverts some changes (always reset on overflow) from
PR port-sparc64/46260.
 1.27  01-Mar-2020  thorpej branches: 1.27.6;
- Support 64-bit DMA addresses for the Tx and Rx ring addresses.
- g/c and unused define.
 1.26  13-Sep-2019  msaitoh if_flags is neither int nor short. It's unsigned short.
 1.25  13-Apr-2015  riastradh branches: 1.25.18;
Convert sys/dev to use <sys/rndsource.h>.
 1.24  02-Jul-2012  jdc branches: 1.24.2; 1.24.16;
Apply lockup fixes from Havard Eidnes/OpenBSD in PR port-sparc64/46260:
- add an additional watchdog for RX overflow
- re-initialise the chip on device timeout
Also alter the interrupt blanking rate to 8 packets, as per OpenSolaris.
 1.23  02-Feb-2012  tls branches: 1.23.2;
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  24-Feb-2010  dyoung branches: 1.21.10;
A pointer typedef entails trading too much flexibility to declare const
and non-const types, and the kernel uses both const and non-const
PMF qualifiers and device suspensors, so change the pmf_qual_t and
device_suspensor_t typedefs from "pointers to const" to non-pointer,
non-const types.
 1.20  08-Jan-2010  dyoung branches: 1.20.2;
Expand PMF_FN_* macros.
 1.19  27-Jul-2009  dyoung Do a complete device_t/softc split for the PCI attachment. I have
not finished the device_t/softc split for the SBus attachment
because I don't have an SBus gem(4) to test with.

Convert from legacy shutdownhooks to a PMF shutdown hook. Add PMF
suspend/resume handlers.

Factor a detachment hook out of gem_attach(). During device
attachment, track which resources are reserved in sc_attach_state,
and release only those resources during detachment.

Tested on gem0 and gem1 at pci1 on a Sun Fire V120.
 1.18  01-Feb-2008  jdc branches: 1.18.10; 1.18.20;
Add GEM_IS_SUN macro, and chip revision to the softc.
 1.17  19-Jan-2008  dyoung Remove unused sc_media #define.
 1.16  05-Jan-2008  jdc Add support for Sun PCI X1141A (SX fibre) cards, based on the GEM
documentation, experimentation and a previous patch from John Heasley.

Add improvements to the driver based on the GEM documentation and
from FreeBSD if_gem.c (rev 1.45).
 1.15  24-Nov-2006  martin branches: 1.15.2; 1.15.16; 1.15.24; 1.15.30; 1.15.38;
In preparation for gem @ sbus: split the GEM registers into two halfs
and provide a bus_space_handle_t for each. While there, fix a typo
in gem_bitwait().
 1.14  11-Dec-2005  christos branches: 1.14.20; 1.14.22;
merge ktrace-lwp.
 1.13  28-Oct-2005  christos forgot to commit this.
 1.12  16-May-2005  bouyer branches: 1.12.2; 1.12.4;
Pad small packets with a static buffer at the end of the S/G list.
Avoids leaking kernel memory when small packets are transmitted.
Tested on a ibook G4.
 1.11  04-Feb-2005  perry branches: 1.11.4;
de-__P
 1.10  17-Oct-2004  heas branches: 1.10.4; 1.10.6;
Adjust/add a few comments and add defines for PCS (aka GEM_MII) FSM and
interrupt registers.
drop some trailing WS.

no functional changes.
 1.9  15-May-2002  matt branches: 1.9.10; 1.9.14;
Only enable detailed evcnts if GEM_COUNTERS is defined. But always count
interrupts.
 1.8  15-May-2002  matt Add evcnt stuff for interrupts.
Fix receiver lockups. When writing the RX Kick register, we need back up
on descriptor since we advanced one in the for loop. That will be the
last descriptor we haven't processed which is what we should write.
 1.7  11-May-2002  matt Many fixes. Multicast hash filter works now. Autonegotiation with GigE
on Mac G4's now works. XXX Checksum offload still needs to be done.
 1.6  08-May-2002  matt If the detected media is gigabit, change the gem to use GMII mode otherwise
switch back to MII mode. Keep a sliding window for TX segments and when it
gets > 2/3 full, request a TX interrupt (window gets reset when the h/w TX
queue is empty). Add dv_xname to a few printfs. With the above changes,
the gem driver will now work on Macintoshes, even in GigE mode. On a 733
PowerMac G4 it gets ~355Mb/s TX and ~280Mb/s RX to/from an Alpha XP1000.

XXX mii autoselect is still flakey.
 1.5  18-Oct-2001  thorpej branches: 1.5.4;
Yet more cruft removal.
 1.4  18-Oct-2001  thorpej Remove more cruft left over from copying bits of other drivers.
 1.3  18-Oct-2001  thorpej Remove some more stuff left over from copying bits of the HME driver.
 1.2  01-Oct-2001  eeh Increase receive ring to 128 entries and handle both endian devices.
 1.1  16-Sep-2001  eeh branches: 1.1.2; 1.1.4;
Driver for Sun GEM gigabit ethernet, Sun ERI 10/100, and Apple GMAC.
 1.1.4.3  11-Oct-2001  fvdl Catch up with -current. Fix some bogons in the sparc64 kbd/ms
attach code. cd18xx conversion provided by mrg.
 1.1.4.2  01-Oct-2001  fvdl Catch up with -current.
 1.1.4.1  16-Sep-2001  fvdl file gemvar.h was added on branch thorpej-devvp on 2001-10-01 12:45:36 +0000
 1.1.2.5  20-Jun-2002  nathanw Catch up to -current.
 1.1.2.4  22-Oct-2001  nathanw Catch up to -current.
 1.1.2.3  08-Oct-2001  nathanw Catch up to -current.
 1.1.2.2  21-Sep-2001  nathanw Catch up to -current.
 1.1.2.1  16-Sep-2001  nathanw file gemvar.h was added on branch nathanw_sa on 2001-09-21 22:35:37 +0000
 1.5.4.3  23-Jun-2002  jdolecek catch up with -current on kqueue branch
 1.5.4.2  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.5.4.1  18-Oct-2001  thorpej file gemvar.h was added on branch kqueue on 2002-01-10 19:54:30 +0000
 1.9.14.1  21-Jun-2005  riz Pull up revision 1.12 (requested by bouyer in ticket #2006):
Pad small packets with a static buffer at the end of the S/G list.
Avoids leaking kernel memory when small packets are transmitted.
Tested on a ibook G4.
 1.9.10.3  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.9.10.2  04-Feb-2005  skrll Sync with HEAD.
 1.9.10.1  19-Oct-2004  skrll Sync with HEAD
 1.10.6.1  12-Feb-2005  yamt sync with head.
 1.10.4.1  29-Apr-2005  kent sync with -current
 1.11.4.1  21-Jun-2005  tron Pull up revision 1.12 (requested by bouyer in ticket #484):
Pad small packets with a static buffer at the end of the S/G list.
Avoids leaking kernel memory when small packets are transmitted.
Tested on a ibook G4.
 1.12.4.1  02-Nov-2005  yamt sync with head.
 1.12.2.4  04-Feb-2008  yamt sync with head.
 1.12.2.3  21-Jan-2008  yamt sync with head
 1.12.2.2  30-Dec-2006  yamt sync with head.
 1.12.2.1  21-Jun-2006  yamt sync with head.
 1.14.22.1  10-Dec-2006  yamt sync with head.
 1.14.20.1  12-Jan-2007  ad Sync with head.
 1.15.38.2  20-Jan-2008  bouyer Sync with HEAD
 1.15.38.1  08-Jan-2008  bouyer Sync with HEAD
 1.15.30.1  18-Feb-2008  mjf Sync with HEAD.
 1.15.24.2  23-Mar-2008  matt sync with HEAD
 1.15.24.1  09-Jan-2008  matt sync with HEAD
 1.15.16.1  03-Jun-2008  skrll Sync with netbsd-4.
 1.15.2.1  17-May-2008  bouyer Pull up following revision(s) (requested by jdc in ticket #1145):
src/share/man/man4/gem.4 1.5,1.6 via patch
src/sys/arch/sparc64/conf/GENERIC 1.97 via patch
src/sys/dev/ic/gem.c 1.59,1.61-1.68,1.70-1.73 via patch
src/sys/dev/ic/gemreg.h 1.11 via patch
src/sys/dev/ic/gemvar.h 1.16,1.18 via patch
src/sys/dev/mii/bmtphy.c 1.24 via patch
src/sys/dev/pci/if_gem_pci.c 1.25,1.27 via patch
src/sys/dev/pci/pcidevs 1.12 via patch
src/sys/dev/pci/pcidevs.h regenerate
src/sys/dev/pci/pcidevs_data.h regenerate
Add support for Sun PCI X1141A (SX fibre) cards.
Add improvements to the driver.
Disable HW UDP4 and RX TCP4 checksums because they are buggy (PR#34799)
Add improvements to bmtphy.
 1.18.20.1  15-Sep-2012  bouyer Pull up following revision(s) (requested by jdc in ticket #1789):
sys/dev/ic/gem.c: revision 1.99 via patch
sys/dev/ic/gemvar.h: revision 1.24 via patch
sys/dev/ic/gemreg.h: revision 1.15 via patch
Apply lockup fixes from Havard Eidnes/OpenBSD in PR port-sparc64/46260:
- add an additional watchdog for RX overflow
- re-initialise the chip on device timeout
Also alter the interrupt blanking rate to 8 packets, as per OpenSolaris.
 1.18.10.2  11-Mar-2010  yamt sync with head
 1.18.10.1  19-Aug-2009  yamt sync with head.
 1.20.2.1  30-Apr-2010  uebayasi Sync with HEAD.
 1.21.10.2  30-Oct-2012  yamt sync with head
 1.21.10.1  17-Apr-2012  yamt sync with head
 1.22.2.1  18-Feb-2012  mrg merge to -current.
 1.23.2.1  05-Jul-2012  riz Pull up following revision(s) (requested by jdc in ticket #401):
sys/dev/ic/gem.c: revision 1.99
sys/dev/ic/gemvar.h: revision 1.24
sys/dev/ic/gemreg.h: revision 1.15
Apply lockup fixes from Havard Eidnes/OpenBSD in PR port-sparc64/46260:
- add an additional watchdog for RX overflow
- re-initialise the chip on device timeout
Also alter the interrupt blanking rate to 8 packets, as per OpenSolaris.
 1.24.16.1  06-Jun-2015  skrll Sync with HEAD
 1.24.2.1  03-Dec-2017  jdolecek update from HEAD
 1.25.18.2  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.25.18.1  08-Apr-2020  martin Merge changes from current as of 20200406
 1.27.6.1  03-Apr-2021  thorpej Sync with HEAD.

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