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path: root/sys/dev/mii/ikphy.c
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2020-03-15Define and implement a locking protocol for the ifmedia / mii layers:thorpej
- 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.
2019-11-27- Simplify sc->mii_anegticks setting. Same as FreeBSD.msaitoh
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().
2019-11-26 Fix typo in comment.msaitoh
2019-09-04 KNF. No functional change.msaitoh
2019-03-25 KNF. No functional change.msaitoh
2019-02-24use a macro to tidy up the phydesc array initialization, from FreeBSDchristos
2019-01-22 Change MII PHY read/write API from:msaitoh
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
2016-11-02Set mii_mpd_{oui,model,rev}.msaitoh
2016-07-07KNF. Remove extra spaces. No functional change.msaitoh
2014-06-16 IFM_FDX and IFM_HDX use different bit, so set IFM_HDX bit if it's not fullmsaitoh
duplex. For many drivers, it recognize half duplex if IFM_FDX isn't set, but not for others. Same as {Free|Open}BSD.
2009-10-19Remove closes 3 & 4 from my licence. Lots of thanks to Soren Jacobsenbouyer
for the booring work !
2008-11-17Reduce code duplication: most PHY drivers call mii_phy_add_media()dyoung
when they attach to the device tree, so call pmf_device_register(9) once there instead of once in more than twenty drivers.
2008-05-04device_t/softc split for all mii(4) devices, and other relatedxtraeme
cosmetic changes.
2008-04-08use aprint_*_dev and device_xnamecegger
2007-12-29Remove the device_is_active() check from each individual PHY'sdyoung
service routine. Add a wrapper for PHY_SERVICE(), called phy_service(), and check device_is_active() there. Make the mii_*() routines call the PHY service routines thorugh phy_service() instead of PHY_SERVICE(). In mii_phy_resume(), restore a PHY's state after resetting it by sending a MII_MEDIACHG command. This change makes bnx(4) resume more reliably and more quickly; it should help other NICs to resume, too, if they attach PHYs through MII.
2007-12-09Merge jmcneill-pm branch.jmcneill
2006-11-16- don't hardcode 5, 10 define and use MII_ANEGTICKS{,_GIGE}christos
- instead of != limit, use <= limit (conservative)
2006-11-16__unused removal on arguments; approved by core.christos
2006-10-21Add support for the Intel 80003 Gigabit Ethernet controller (found e.g. inbouyer
newer server chipsets) to wm(4), from the FreeBSD em(4) driver. While there, add a few other Intel Ethernet controller that should work as is. Properly update the RX error and TX collision counters. Add ikphy(4), a driver for the Intel i82563 Kumeran 10/100/1000 Ethernet PHYs