d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
e488229ba4
freebsd-dev/sys/mips/conf/QCA955X_BASE
Mark Murray d1b06863fb Huge cleanup of random(4) code. 
* GENERAL
- Update copyright.
- Make kernel options for RANDOM_YARROW and RANDOM_DUMMY. Set
  neither to ON, which means we want Fortuna
- If there is no 'device random' in the kernel, there will be NO
  random(4) device in the kernel, and the KERN_ARND sysctl will
  return nothing. With RANDOM_DUMMY there will be a random(4) that
  always blocks.
- Repair kern.arandom (KERN_ARND sysctl). The old version went
  through arc4random(9) and was a bit weird.
- Adjust arc4random stirring a bit - the existing code looks a little
  suspect.
- Fix the nasty pre- and post-read overloading by providing explictit
  functions to do these tasks.
- Redo read_random(9) so as to duplicate random(4)'s read internals.
  This makes it a first-class citizen rather than a hack.
- Move stuff out of locked regions when it does not need to be
  there.
- Trim RANDOM_DEBUG printfs. Some are excess to requirement, some
  behind boot verbose.
- Use SYSINIT to sequence the startup.
- Fix init/deinit sysctl stuff.
- Make relevant sysctls also tunables.
- Add different harvesting "styles" to allow for different requirements
  (direct, queue, fast).
- Add harvesting of FFS atime events. This needs to be checked for
  weighing down the FS code.
- Add harvesting of slab allocator events. This needs to be checked for
  weighing down the allocator code.
- Fix the random(9) manpage.
- Loadable modules are not present for now. These will be re-engineered
  when the dust settles.
- Use macros for locks.
- Fix comments.

* src/share/man/...
- Update the man pages.

* src/etc/...
- The startup/shutdown work is done in D2924.

* src/UPDATING
- Add UPDATING announcement.

* src/sys/dev/random/build.sh
- Add copyright.
- Add libz for unit tests.

* src/sys/dev/random/dummy.c
- Remove; no longer needed. Functionality incorporated into randomdev.*.

* live_entropy_sources.c live_entropy_sources.h
- Remove; content moved.
- move content to randomdev.[ch] and optimise.

* src/sys/dev/random/random_adaptors.c src/sys/dev/random/random_adaptors.h
- Remove; plugability is no longer used. Compile-time algorithm
  selection is the way to go.

* src/sys/dev/random/random_harvestq.c src/sys/dev/random/random_harvestq.h
- Add early (re)boot-time randomness caching.

* src/sys/dev/random/randomdev_soft.c src/sys/dev/random/randomdev_soft.h
- Remove; no longer needed.

* src/sys/dev/random/uint128.h
- Provide a fake uint128_t; if a real one ever arrived, we can use
  that instead. All that is needed here is N=0, N++, N==0, and some
  localised trickery is used to manufacture a 128-bit 0ULLL.

* src/sys/dev/random/unit_test.c src/sys/dev/random/unit_test.h
- Improve unit tests; previously the testing human needed clairvoyance;
  now the test will do a basic check of compressibility. Clairvoyant
  talent is still a good idea.
- This is still a long way off a proper unit test.

* src/sys/dev/random/fortuna.c src/sys/dev/random/fortuna.h
- Improve messy union to just uint128_t.
- Remove unneeded 'static struct fortuna_start_cache'.
- Tighten up up arithmetic.
- Provide a method to allow eternal junk to be introduced; harden
  it against blatant by compress/hashing.
- Assert that locks are held correctly.
- Fix the nasty pre- and post-read overloading by providing explictit
  functions to do these tasks.
- Turn into self-sufficient module (no longer requires randomdev_soft.[ch])

* src/sys/dev/random/yarrow.c src/sys/dev/random/yarrow.h
- Improve messy union to just uint128_t.
- Remove unneeded 'staic struct start_cache'.
- Tighten up up arithmetic.
- Provide a method to allow eternal junk to be introduced; harden
  it against blatant by compress/hashing.
- Assert that locks are held correctly.
- Fix the nasty pre- and post-read overloading by providing explictit
  functions to do these tasks.
- Turn into self-sufficient module (no longer requires randomdev_soft.[ch])
- Fix some magic numbers elsewhere used as FAST and SLOW.

Differential Revision: https://reviews.freebsd.org/D2025
Reviewed by: vsevolod,delphij,rwatson,trasz,jmg
Approved by: so (delphij)
2015-06-30 17:00:45 +00:00

142 lines
3.7 KiB
Plaintext
Raw Blame History

#
# QCA955X_BASE -- Kernel configuration base file for the Qualcomm Atheros
# QCA955x SoC.
#
# This file (and the hints file accompanying it) are not designed to be
# used by themselves. Instead, users of this file should create a kernel
# config file which includes this file (which gets the basic hints), then
# override the default options (adding devices as needed) and adding
# hints as needed (for example, the GPIO and LAN PHY.)
#
# $FreeBSD$
#
machine mips mips
ident QCA955X_BASE
cpu CPU_MIPS74KC
makeoptions KERNLOADADDR=0x80050000
options HZ=1000
options BREAK_TO_DEBUGGER
options ALT_BREAK_TO_DEBUGGER
# options BOOTVERBOSE=10
files "../atheros/files.ar71xx"
hints "QCA955X_BASE.hints"
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
# makeoptions MODULES_OVERRIDE="gpio ar71xx if_gif if_gre if_bridge bridgestp usb wlan wlan_xauth wlan_acl wlan_wep wlan_tkip wlan_ccmp wlan_rssadapt wlan_amrr ath ath_ahb hwpmc"
makeoptions MODULES_OVERRIDE="if_vlan ipfw if_gre if_gif if_bridge bridgestp"
options DDB
options KDB
options ALQ
options SCHED_4BSD #4BSD scheduler
options INET #InterNETworking
#options INET6 #InterNETworking
#options NFSCL #Network Filesystem Client
options PSEUDOFS #Pseudo-filesystem framework
options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
# Don't include the SCSI/CAM strings in the default build
options SCSI_NO_SENSE_STRINGS
options SCSI_NO_OP_STRINGS
# .. And no sysctl strings
options NO_SYSCTL_DESCR
# Limit IO size
options NBUF=128
# Limit UMTX hash size
# options UMTX_NUM_CHAINS=64
# PMC - fow now there's no hwpmc module for mips74k
#options HWPMC_HOOKS
#device hwpmc
#device hwpmc_mips74k
# options NFS_LEGACYRPC
# Debugging for use in -current
#options INVARIANTS
#options INVARIANT_SUPPORT
#options WITNESS
#options WITNESS_SKIPSPIN
options FFS #Berkeley Fast Filesystem
#options SOFTUPDATES #Enable FFS soft updates support
#options UFS_ACL #Support for access control lists
#options UFS_DIRHASH #Improve performance on big directories
options NO_FFS_SNAPSHOT # We don't require snapshot support
# Wireless NIC cards
options IEEE80211_DEBUG
options IEEE80211_SUPPORT_MESH
options IEEE80211_SUPPORT_TDMA
options IEEE80211_SUPPORT_SUPERG
options IEEE80211_ALQ # 802.11 ALQ logging support
device wlan # 802.11 support
device wlan_wep # 802.11 WEP support
device wlan_ccmp # 802.11 CCMP support
device wlan_tkip # 802.11 TKIP support
device wlan_xauth # 802.11 hostap support
# ath(4)
device ath # Atheros network device
device ath_rate_sample
device ath_ahb # Atheros host bus glue
options ATH_DEBUG
options ATH_DIAGAPI
option ATH_ENABLE_11N
option AH_DEBUG_ALQ
#device ath_hal
device ath_ar9300 # AR9330 HAL; no need for the others
option AH_DEBUG
option AH_SUPPORT_AR5416 # 11n HAL support
option AH_SUPPORT_QCA9550 # Chipset support
option AH_DEBUG_ALQ
option AH_AR5416_INTERRUPT_MITIGATION
device mii
device arge
options ARGE_DEBUG
device usb
options USB_EHCI_BIG_ENDIAN_DESC # handle big-endian byte order
options USB_DEBUG
options USB_HOST_ALIGN=32 # AR71XX (MIPS in general?) requires this
device ehci
device scbus
device umass
device da
device spibus
device ar71xx_spi
device mx25l
device ar71xx_wdog
device uart
device uart_ar71xx
device ar71xx_apb
# Until some better interrupt handling is shoehorned into qca955x_apb,
# we'll have to stick to shared interrupts for IP2/IP3 demux.
# device qca955x_apb
device loop
device ether
device md
device bpf
device random
device if_bridge
device gpio
device gpioled
#options KTR
#options KTR_MASK=(KTR_INTR)
#options KTR_COMPILE=(KTR_INTR)
#options KTR_VERBOSE
Reference in New Issue View Git Blame Copy Permalink