CVS log for src/sys/dev/mii/bmtphy.c

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Keyword substitution: kv
Default branch: MAIN

Merge changes from current as of 20200406

Define and implement a locking protocol for the ifmedia / mii layers:
- MP-safe drivers provide a mutex to ifmedia that is used to serialize
  access to media-related structures / hardware regsiters.  Converted
  drivers use the new ifmedia_init_with_lock() function for this.  The
  new name is provided to ease the transition.
- Un-converted drivers continue to call ifmedia_init(), which will supply
  a compatibility lock to be used instead.  Several media-related entry
  points must be aware of this compatibility lock, and are able to acquire
  it recursively a limited number of times, if needed.  This is a SPIN
  mutex with priority IPL_NET.
- This same lock is used to serialize access to PHY registers and other
  MII-related data structures.

The PHY drivers are modified to acquire and release the lock, as needed,
and assert the lock is held as a diagnostic aid.

The "usbnet" framework has had an overhaul of its internal locking
protocols to fit in with the media / mii changes, and the drivers adapted.

USB wifi drivers have been changed to provide their own adaptive mutex
to the ifmedia later via a new ieee80211_media_init_with_lock() function.
This is required because the USB drivers need an adaptive mutex.

Besised "usbnet", a few other drivers are converted: vmx, wm, ixgbe / ixv.

mcx also now calls ifmedia_init_with_lock() because it needs to also use
an adaptive mutex.  The mcx driver still needs to be fully converted to
NET_MPSAFE.

- Simplify sc->mii_anegticks setting. Same as FreeBSD.

   Don't set the default value not in the attach function. Instead, set the
  default value (MII_ANEGTICKS) first in the beginning of the
  mii_phy_add_media(). The function already has the code to change the value to
  MII_ANEGTICKS_GIGE if it's gigabit capable.

- Remove extra pmf_device_register() call. It's done in mii_phy_add_media().

Sync with HEAD

 KNF. No functional change.

use a macro to tidy up the phydesc array initialization, from FreeBSD

Sync with HEAD

 Change MII PHY read/write API from:

	int (*mii_readreg_t)(device_t, int, int);
	void (*mii_writereg_t)(device_t, int, int, int);
to:

	int (*mii_readreg_t)(device_t, int, int, uint16_t *);
	int (*mii_writereg_t)(device_t, int, int, uint16_t);

Now we can test if a read/write operation failed or not by the return value.

 In 802.3 spec says that the PHY shall not respond to read/write transaction
to the unimplemented register(22.2.4.3). Detecting timeout can be used to
check whether a register is implemented or not (if the register conforms to
the spec). ukphy(4) can be used this for MII_MMDACR and MII_MMDAADR.

 Note that I noticed that the following code do infinite loop in the
read/wirte function. If it accesses unimplemented PHY register, it will hang.
It should be fixed:

	arm/at91/at91emac.c
	arm/ep93xx/epe.c
	arm/omap/omapl1x_emac.c
	mips/ralink/ralink_eth.c
	arch/powerpc/booke/dev/pq3etsec.c(read)
	dev/cadence/if_cemac.c <- hkenken
	dev/ic/lan9118.c


Tested with the following device:

	axe+ukphy
	axe+rgephy
	axen+rgephy	(tested by Andrius V)
	wm+atphy
	wm+ukphy
	wm+igphy
	wm+ihphy
	wm+makphy
	sk+makphy
	sk+brgphy
	sk+gentbi
	msk+makphy
	sip+icsphy
	sip+ukphy
	re+rgephy
	bge+brgphy
	bnx+brgphy
	gsip+gphyter
	rtk+rlphy
	fxp+inphy	(tested by Andrius V)
	tlp+acphy
	ex+exphy
	epic+qsphy
	vge+ciphy	(tested by Andrius V)
	vr+ukphy	(tested by Andrius V)
	vte+ukphy	(tested by Andrius V)

Not tested (MAC):
	arm:at91emac
	arm:cemac
	arm:epe
	arm:geminigmac
	arm:enet
	arm:cpsw
	arm:emac(omac)
	arm:emac(sunxi)
	arm:npe
	evbppc:temac
	macppc:bm
	macppc:gm
	mips:aumac
	mips:ae
	mips:cnmac
	mips:reth
	mips:sbmac
	playstation2:smap
	powerpc:tsec
	powerpc:emac(ibm4xx)
	sgimips:mec
	sparc:be
	sf
	ne(ax88190, dl10019)
	awge
	ep
	gem
	hme
	smsh
	mtd
	sm
	age
	alc
	ale
	bce
	cas
	et
	jme
	lii
	nfe
	pcn
	ste
	stge
	tl
	xi
	aue
	mue
	smsc
	udav
	url

Not tested (PHY):
	amhphy
	bmtphy
	dmphy
	etphy
	glxtphy
	ikphy
	iophy
	lxtphy
	nsphyter
	pnaphy
	rdcphy
	sqphy
	tlphy
	tqphy
	urlphy

update from HEAD

Sync with HEAD

KNF. Remove extra spaces. No functional change.

Pull up following revision(s) (requested by msaitoh in ticket #1189):
	sys/dev/pci/if_wm.c: revision 1.270
	sys/dev/mii/inphy.c: revision 1.53
	sys/dev/mii/glxtphy.c: revision 1.24
	sys/dev/mii/tlphy.c: revision 1.62
	sys/dev/mii/iophy.c: revision 1.37
	sys/dev/mii/brgphy.c: revision 1.70
	sys/dev/mii/ihphy.c: revision 1.8
	sys/dev/mii/bmtphy.c: revision 1.31
	sys/dev/mii/urlphy.c: revision 1.30
	sys/dev/mii/makphy.c: revision 1.40
	sys/dev/mii/qsphy.c: revision 1.48
	sys/dev/mii/igphy.c: revision 1.23
	sys/dev/mii/nsphy.c: revision 1.58
	sys/dev/mii/mvphy.c: revision 1.10
	sys/dev/pci/if_txp.c: revision 1.41
	sys/dev/mii/nsphy.c: revision 1.59
	sys/dev/mii/rlphy.c: revision 1.28
	sys/dev/mii/icsphy.c: revision 1.49
	sys/dev/mii/rlphy.c: revision 1.29
	sys/dev/mii/lxtphy.c: revision 1.49
	sys/dev/mii/ciphyreg.h: revision 1.5
	sys/dev/mii/nsphyter.c: revision 1.38
	sys/dev/mii/sqphy.c: revision 1.50
	sys/dev/mii/gentbi.c: revision 1.26
	sys/dev/mii/gentbi.c: revision 1.27
	sys/dev/mii/tqphy.c: revision 1.39
	sys/dev/mii/ikphy.c: revision 1.10
	sys/dev/mii/dmphy.c: revision 1.35
	sys/dev/mii/amhphy.c: revision 1.20
	sys/dev/mii/acphy.c: revision 1.24
	sys/dev/mii/ciphy.c: revision 1.25
	sys/dev/mii/brgphyreg.h: revision 1.8
	sys/dev/mii/ukphy_subr.c: revision 1.12
	sys/dev/ic/rtl80x9.c: revision 1.16
	sys/arch/mips/adm5120/dev/if_admsw.c: revision 1.12
	sys/dev/pci/if_kse.c: revision 1.28
	sys/dev/mii/ukphy_subr.c: revision 1.13
	sys/dev/mii/mii.h: revision 1.18
	sys/dev/mii/gphyter.c: revision 1.29
No functional change:
- Fix typo.
- Remove trailing white spaces.
- Capitalize comments.
- Tabify.
- KNF.
 IFM_FDX and IFM_HDX use different bit, so set IFM_HDX bit if it's not full
duplex. For many drivers, it recognize half duplex if IFM_FDX isn't set,
but not for others. Same as {Free|Open}BSD.

Rebase to HEAD as of a few days ago.

Rebase.

No functional change:
- Fix typo.
- Remove trailing white spaces.
- Capitalize comments.
- Tabify.
- KNF.

sync with head

Remove closes 3 & 4 from my licence. Lots of thanks to Soren Jacobsen
for the booring work !

sync with head.

Sync with HEAD.

Enable flow control and poll the status appropriately.

contributed anonymously.

Sync with HEAD.

Update haad-dm branch to haad-dm-base2.

Reduce code duplication: most PHY drivers call mii_phy_add_media()
when they attach to the device tree, so call pmf_device_register(9)
once there instead of once in more than twenty drivers.

Sync with netbsd-4.

Sync with HEAD.

sync with head.

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.

sync with head.

device_t/softc split for all mii(4) devices, and other related
cosmetic changes.

Remove clause 3 and 4 from TNF licenses

use aprint_*_dev and device_xname

Sync with HEAD.

sync with head

sync with HEAD

Sync with HEAD

Updates from OpenBSD:
    -- r1.15
  Add some DSP init code for BCM5221's.

  Values derived from Apple's GMAC driver, same init
  code also exists in Linux's sungem_phy driver.

  tested by miod@ pedro@ and otto@ on a few systems.
    -- r1.16
  Always explicitly set IFM_HDX for half-duplex.

  From brad@
    --

Sync with head.

sync with head.

Merge jmcneill-pm branch.

Rename pnp(9) -> pmf(9), as requested by many.

Register MII PHY drives with the PM framework. Nothing to do on suspend,
just reset the PHY on resume.

sync with head.

sync with head.

Sync with head.

- don't hardcode 5, 10 define and use MII_ANEGTICKS{,_GIGE}
- instead of != limit, use <= limit (conservative)

__unused removal on arguments; approved by core.

sync with head

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

sync with head

sync with head.

Sync with head.

sync with head.

sync with head.

Merge 2006-03-31 NetBSD-current into the "peter-altq" branch.

Use device_private().

merge ktrace-lwp.

sync with -current

Sync with HEAD.

Support Broadcom BCM5222 dual 10/100 media interface.

Sync with HEAD.

Add BCM 4401 phy (from FreeBSD).

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD.

Make use of static.

Only read media status bits when they are valid.
From Makoto Fujiwara in PR kern/21810.

Match Broadcom's BCM5214 Quad 10/100 media interface.

Use aprint*().

Catch up to -current.

sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

sync kqueue branch with HEAD

Catch up to -current.

catch up with -current.

Don't include <malloc.h> - no memory management style functions are use
in any of the MII drivers.

catch up with -current on kqueue branch

Catch up to -current.
(CVS: It's not just a program. It's an adventure!)

Get flags passed down to PHY drivers correctly.  This was done on
an adhoc basis in a couple of PHY drivers, this fixes it more generally.

Per a discussion w/ Cliff Neighbors <cliff@allegronetworks.com>.

Sync kqueue branch with -current.

Catch up to -current.

add RCSID

Catch up to -current.

Update the kqueue branch to HEAD.

ANSI'ify.

Catch up with -current.

update to -current

Use the bit-swapped OUI for the 5221.  (Have I mentioned that I really
don't like how the current MII_OUI() works?)

Add a 3Com 3c905B internal PHY.

Catch up to -current.

file bmtphy.c was added on branch nathanw_sa on 2001-06-21 20:04:15 +0000

Initialize sc->sc_anegticks to 5 on attach to prevent panic due to
assertion failure.

Driver for the Broadcom BCM5201/BCM5202 "Mini-Theta" Ethernet
PHYs.  This is also the same PHY core as in the 3Com 3c905C.
The PHY is documented in the 3c905C manual.