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Timur Tabi 529ed12752 net: phy: phy drivers should not set SUPPORTED_[Asym_]Pause 
Instead of having individual PHY drivers set the SUPPORTED_Pause and
SUPPORTED_Asym_Pause flags, phylib itself should set those flags,
unless there is a hardware erratum or other special case.  During
autonegotiation, the PHYs will determine whether to enable pause
frame support.

Pause frames are a feature that is supported by the MAC.  It is the MAC
that generates the frames and that processes them.  The PHY can only be
configured to allow them to pass through.

This commit also effectively reverts the recently applied c7a61319
("net: phy: dp83848: Support ethernet pause frames").

So the new process is:

1) Unless the PHY driver overrides it, phylib sets the SUPPORTED_Pause
and SUPPORTED_AsymPause bits in phydev->supported.  This indicates that
the PHY supports pause frames.

2) The MAC driver checks phydev->supported before it calls phy_start().
If (SUPPORTED_Pause | SUPPORTED_AsymPause) is set, then the MAC driver
sets those bits in phydev->advertising, if it wants to enable pause
frame support.

3) When the link state changes, the MAC driver checks phydev->pause and
phydev->asym_pause,  If the bits are set, then it enables the corresponding
features in the MAC.  The algorithm is:

	if (phydev->pause)
		The MAC should be programmed to receive and honor
                pause frames it receives, i.e. enable receive flow control.

	if (phydev->pause != phydev->asym_pause)
		The MAC should be programmed to transmit pause
		frames when needed, i.e. enable transmit flow control.

Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2016-12-10 23:31:19 -05:00
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accessibility
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acpi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-10 16:21:55 -05:00
amba
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android ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct 2016-10-24 19:37:48 +02:00
ata libata-scsi: disable SCT Write Same for the moment 2016-12-07 16:29:09 -05:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-06 21:33:19 -05:00
auxdisplay auxdisplay: img-ascii-lcd: driver for simple ASCII LCD displays 2016-10-06 17:03:41 +02:00
base devres: add devm_alloc_percpu() 2016-11-15 22:34:25 -05:00
bcma bcma: add Dell Inspiron 3148 2016-11-29 17:35:14 +02:00
block zram: restrict add/remove attributes to root only 2016-12-07 17:10:00 -08:00
bluetooth Bluetooth: btmrvl: drop duplicate header slab.h 2016-12-08 07:44:56 +01:00
bus bus: qcom-ebi2: depend on ARCH_QCOM or COMPILE_TEST 2016-10-17 13:46:09 -07:00
cdrom
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char Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-22 13:27:16 -05:00
clk Two small fixes for MIPI PLLs on sunxi devices and a build fix 2016-11-30 15:15:49 -08:00
clocksource Revert "clocksource/drivers/timer_sun5i: Replace code by clocksource_mmio_init" 2016-10-20 21:58:58 +02:00
connector
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cpufreq Merge branches 'pm-cpufreq-fixes' and 'pm-sleep-fixes' 2016-10-29 01:29:17 +02:00
cpuidle Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-10-15 09:26:12 -07:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-10 16:21:55 -05:00
dax device-dax: fix private mapping restriction, permit read-only 2016-12-06 17:42:37 -08:00
dca
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devfreq PM / devfreq: Skip status update on uninitialized previous_freq 2016-10-11 00:01:20 +02:00
dio
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dma dmaengine: cppi41: More PM runtime fixes 2016-11-17 16:09:23 +05:30
dma-buf Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux 2016-10-11 18:12:22 -07:00
edac * Altera Arria10 enablement of NAND, DMA, USB, QSPI and SD-MMC FIFO 2016-10-04 12:06:26 -07:00
eisa
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extcon extcon: qcom-spmi-misc: Sync the extcon state on interrupt 2016-10-26 16:04:29 +09:00
firewire Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-15 10:54:36 -05:00
firmware efi/arm: Fix absolute relocation detection for older toolchains 2016-10-19 14:49:44 +02:00
fmc
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fpga
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gpio gpio: Remove GPIO_DEVRES option 2016-11-16 20:46:32 +01:00
gpu drm/amdgpu: just suspend the hw on pci shutdown 2016-12-07 11:17:21 -05:00
hid HID: hid-sensor-hub: clear memory to avoid random data 2016-11-23 17:54:58 +01:00
hsi net: use core MTU range checking in misc drivers 2016-10-20 14:51:10 -04:00
hv vmbus: make sysfs names consistent with PCI 2016-11-01 09:07:13 -06:00
hwmon hwmon: (core) fix resource leak on devm_kcalloc failure 2016-10-24 06:05:13 -07:00
hwspinlock
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hwtracing
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i2c Revert "i2c: octeon: thunderx: Limit register access retries" 2016-11-29 20:04:21 +01:00
ide
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idle nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
iio iio: maxim_thermocouple: detect invalid storage size in read() 2016-11-13 10:08:32 +01:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-22 13:27:16 -05:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2016-12-01 10:29:41 -08:00
iommu Merge git://git.infradead.org/intel-iommu 2016-11-27 08:24:46 -08:00
ipack ipack: print a hex number after a 0x prefix 2016-10-27 18:43:43 -07:00
irqchip GIC updates for Linux 4.9-rc2 2016-10-21 21:40:29 +02:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-10 16:21:55 -05:00
leds leds: triggers: Check return value of kobject_uevent_env() 2016-09-20 10:22:10 +02:00
lguest
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lightnvm Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block 2016-10-07 14:42:05 -07:00
macintosh powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mailbox mailbox: PCC: Fix lockdep warning when request PCC channel 2016-11-14 22:07:38 +01:00
mcb mcb: Add a dma_device to mcb_device 2016-09-27 12:33:47 +02:00
md Merge tag 'md/4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2016-11-05 11:34:07 -07:00
media Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-26 23:42:21 -05:00
memory ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
memstick memstick: rtsx_usb_ms: Manage runtime PM when accessing the device 2016-10-17 15:43:05 +02:00
message net: use core MTU range checking in misc drivers 2016-10-20 14:51:10 -04:00
mfd mfd: wm8994-core: Don't use managed regulator bulk get API 2016-11-25 11:10:55 +00:00
misc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-15 10:54:36 -05:00
mmc mmc: dw_mmc: fix the error handling for dma operation 2016-11-21 11:08:28 +01:00
mtd MTD updates for 4.9-rc4: 2016-11-05 10:52:29 -07:00
net net: phy: phy drivers should not set SUPPORTED_[Asym_]Pause 2016-12-10 23:31:19 -05:00
nfc mei: bus: fix received data size check in NFC fixup 2016-10-31 10:25:22 -06:00
ntb ntb_perf: potential info leak in debugfs 2016-11-13 16:48:30 -05:00
nubus
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nvdimm acpi, nfit, libnvdimm: fix / harden ars_status output length handling 2016-12-06 16:08:10 -08:00
nvme nvme/pci: Don't free queues on error 2016-11-16 12:39:57 -07:00
nvmem ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
of of_mdio: add helper to deregister fixed-link PHYs 2016-11-29 23:17:02 -05:00
oprofile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
parisc
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parport
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pci pci-v4.9-fixes-4 2016-12-01 16:44:42 -08:00
pcmcia pcmcia: fix return value of soc_pcmcia_regulator_set 2016-11-11 08:45:08 -08:00
perf perf: xgene: Remove bogus IS_ERR() check 2016-10-17 15:50:07 +01:00
phy phy: twl4030-usb: Fix for musb session bit based PM 2016-11-17 16:25:40 +01:00
pinctrl pinctrl-aspeed-g5: Never set SCU90[6] 2016-11-07 10:31:33 +01:00
platform ACPI fix for v4.9-rc5 2016-11-11 17:02:01 -08:00
pnp
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power power supply and reset changes for the v4.9 series 2016-10-06 18:21:15 -07:00
powercap
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pps pps: kc: fix non-tickless system config dependency 2016-10-11 15:06:32 -07:00
ps3 powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
ptp ptp: Introduce a high resolution frequency adjustment method. 2016-11-09 21:19:53 -05:00
pwm pwm: Fix device reference leak 2016-11-29 16:43:24 +01:00
rapidio mm: replace get_user_pages() write/force parameters with gup_flags 2016-10-19 08:11:43 -07:00
ras
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regulator regulator: core: silence warning: "VDD1: ramp_delay not set" 2016-10-28 18:22:40 +01:00
remoteproc rpmsg updates for v4.9 2016-10-06 17:03:49 -07:00
reset reset: uniphier: rename MIO reset to SD reset for Pro5, PXs2, LD20 SoCs 2016-10-22 18:31:42 +09:00
rpmsg rpmsg: smd: fix dependency on QCOM_SMD=n 2016-09-12 07:05:13 -07:00
rtc rtc: omap: prevent disabling of clock/module during suspend 2016-11-04 23:11:39 +01:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-10-30 12:42:58 -04:00
sbus
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scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-10 16:21:55 -05:00
sfi
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sh
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sn
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soc powerpc updates for 4.9 #2 2016-10-14 11:07:42 -07:00
spi Merge remote-tracking branches 'spi/fix/dt', 'spi/fix/fsl-dspi' and 'spi/fix/fsl-espi' into spi-linus 2016-10-29 12:51:55 -06:00
spmi spmi: pmic-arb: Return an error code if sanity check fails 2016-09-27 12:43:34 +02:00
ssb ssb: Fix error routine when fallback SPROM fails 2016-11-17 08:49:04 +02:00
staging staging: wilc1000: use reset to set mac header 2016-12-03 15:49:16 -05:00
target cxgb4: Allocate Tx queues dynamically 2016-11-18 14:04:29 -05:00
tc
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thermal Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-26 23:42:21 -05:00
thunderbolt
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tty Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-10-30 12:42:58 -04:00
uio
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usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-26 23:42:21 -05:00
uwb uwb: fix device reference leaks 2016-11-01 09:04:04 -06:00
vfio vfio/pci: Fix integer overflows, bitmask check 2016-10-26 13:49:29 -06:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-10 16:21:55 -05:00
video video: ARM CLCD: fix Vexpress regression 2016-11-03 12:20:14 +02:00
virt mm: replace get_user_pages() write/force parameters with gup_flags 2016-10-19 08:11:43 -07:00
virtio virtio_ring: mark vring_dma_dev inline 2016-10-31 00:40:08 +02:00
vlynq
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vme vme: vme_get_size potentially returning incorrect value on failure 2016-10-28 08:25:18 -04:00
w1
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watchdog Merge branches 'acpi-sleep-fixes' and 'acpi-wdat-fixes' 2016-11-25 22:24:07 +01:00
xen xen: fixes for 4.9-rc2 2016-10-24 19:52:24 -07:00
zorro
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Kconfig
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Makefile A small bug fix and a new driver for acting as an IPMI device. 2016-10-23 15:56:23 -07:00