This reverts commit 7ad813f208 ("net: phy:
Correctly process PHY_HALTED in phy_stop_machine()") because it is
creating the possibility for a NULL pointer dereference.
David Daney provide the following call trace and diagram of events:
When ndo_stop() is called we call:
phy_disconnect()
+---> phy_stop_interrupts() implies: phydev->irq = PHY_POLL;
+---> phy_stop_machine()
| +---> phy_state_machine()
| +----> queue_delayed_work(): Work queued.
+--->phy_detach() implies: phydev->attached_dev = NULL;
Now at a later time the queued work does:
phy_state_machine()
+---->netif_carrier_off(phydev->attached_dev): Oh no! It is NULL:
CPU 12 Unable to handle kernel paging request at virtual address
0000000000000048, epc == ffffffff80de37ec, ra == ffffffff80c7c
Oops[#1]:
CPU: 12 PID: 1502 Comm: kworker/12:1 Not tainted 4.9.43-Cavium-Octeon+ #1
Workqueue: events_power_efficient phy_state_machine
task: 80000004021ed100 task.stack: 8000000409d70000
$ 0 : 0000000000000000 ffffffff84720060 0000000000000048 0000000000000004
$ 4 : 0000000000000000 0000000000000001 0000000000000004 0000000000000000
$ 8 : 0000000000000000 0000000000000000 00000000ffff98f3 0000000000000000
$12 : 8000000409d73fe0 0000000000009c00 ffffffff846547c8 000000000000af3b
$16 : 80000004096bab68 80000004096babd0 0000000000000000 80000004096ba800
$20 : 0000000000000000 0000000000000000 ffffffff81090000 0000000000000008
$24 : 0000000000000061 ffffffff808637b0
$28 : 8000000409d70000 8000000409d73cf0 80000000271bd300 ffffffff80c7804c
Hi : 000000000000002a
Lo : 000000000000003f
epc : ffffffff80de37ec netif_carrier_off+0xc/0x58
ra : ffffffff80c7804c phy_state_machine+0x48c/0x4f8
Status: 14009ce3 KX SX UX KERNEL EXL IE
Cause : 00800008 (ExcCode 02)
BadVA : 0000000000000048
PrId : 000d9501 (Cavium Octeon III)
Modules linked in:
Process kworker/12:1 (pid: 1502, threadinfo=8000000409d70000,
task=80000004021ed100, tls=0000000000000000)
Stack : 8000000409a54000 80000004096bab68 80000000271bd300 80000000271c1e00
0000000000000000 ffffffff808a1708 8000000409a54000 80000000271bd300
80000000271bd320 8000000409a54030 ffffffff80ff0f00 0000000000000001
ffffffff81090000 ffffffff808a1ac0 8000000402182080 ffffffff84650000
8000000402182080 ffffffff84650000 ffffffff80ff0000 8000000409a54000
ffffffff808a1970 0000000000000000 80000004099e8000 8000000402099240
0000000000000000 ffffffff808a8598 0000000000000000 8000000408eeeb00
8000000409a54000 00000000810a1d00 0000000000000000 8000000409d73de8
8000000409d73de8 0000000000000088 000000000c009c00 8000000409d73e08
8000000409d73e08 8000000402182080 ffffffff808a84d0 8000000402182080
...
Call Trace:
[<ffffffff80de37ec>] netif_carrier_off+0xc/0x58
[<ffffffff80c7804c>] phy_state_machine+0x48c/0x4f8
[<ffffffff808a1708>] process_one_work+0x158/0x368
[<ffffffff808a1ac0>] worker_thread+0x150/0x4c0
[<ffffffff808a8598>] kthread+0xc8/0xe0
[<ffffffff808617f0>] ret_from_kernel_thread+0x14/0x1c
The original motivation for this change originated from Marc Gonzales
indicating that his network driver did not have its adjust_link callback
executing with phydev->link = 0 while he was expecting it.
PHYLIB has never made any such guarantees ever because phy_stop() merely just
tells the workqueue to move into PHY_HALTED state which will happen
asynchronously.
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reported-by: David Daney <ddaney.cavm@gmail.com>
Fixes: 7ad813f208 ("net: phy: Correctly process PHY_HALTED in phy_stop_machine()")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Marc reported that he was not getting the PHY library adjust_link()
callback function to run when calling phy_stop() + phy_disconnect()
which does not indeed happen because we set the state machine to
PHY_HALTED but we don't get to run it to process this state past that
point.
Fix this with a synchronous call to phy_state_machine() in order to have
the state machine actually act on PHY_HALTED, set the PHY device's link
down, turn the network device's carrier off and finally call the
adjust_link() function.
Reported-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Fixes: a390d1f379 ("phylib: convert state_queue work to delayed_work")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
I still see build errors in randconfig builds and have had this
patch for a while to locally work around it:
drivers/built-in.o: In function `xgene_mdio_probe':
mux-core.c:(.text+0x352154): undefined reference to `of_mdiobus_register'
mux-core.c:(.text+0x352168): undefined reference to `mdiobus_free'
mux-core.c:(.text+0x3521c0): undefined reference to `mdiobus_alloc_size'
The idea is that CONFIG_MDIO_BUS now reflects whether the mdio_bus
code is built-in or a module, and other drivers that use the core
code can simply depend on that, instead of having a complex
dependency line.
Fixes: 90eff9096c ("net: phy: Allow splitting MDIO bus/device support from PHYs")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
mdio_mux_init parses the child nodes of the MDIO mux. When using
"mdio-mux-mmioreg" the child nodes are describing the register value
that is written to switch between the MDIO busses.
The change which makes the error messages more verbose changed the
parsing of the "reg" property from a simple of_property_read_u32 call
to of_mdio_parse_addr. On a Khadas VIM (based on the Meson GXL SoC,
which uses mdio-mux-mmioreg) this prevents registering the MDIO mux
(because the "reg" values on the MDIO mux child nodes are 0x2009087f
and 0xe40908ff) and leads to the following errors:
mdio-mux-mmioreg c883455c.eth-phy-mux: /soc/periphs@c8834000/eth-phy-mux/mdio@e40908ff PHY address -469169921 is too large
mdio-mux-mmioreg c883455c.eth-phy-mux: Error: Failed to find reg for child /soc/periphs@c8834000/eth-phy-mux/mdio@e40908ff
mdio-mux-mmioreg c883455c.eth-phy-mux: /soc/periphs@c8834000/eth-phy-mux/mdio@2009087f PHY address 537462911 is too large
mdio-mux-mmioreg c883455c.eth-phy-mux: Error: Failed to find reg for child /soc/periphs@c8834000/eth-phy-mux/mdio@2009087f
mdio-mux-mmioreg c883455c.eth-phy-mux: Error: No acceptable child buses found
mdio-mux-mmioreg c883455c.eth-phy-mux: failed to register mdio-mux bus /soc/periphs@c8834000/eth-phy-mux
(as a result of that ethernet is not working, because the PHY which is
connected through the mux' child MDIO bus, which is not being
registered).
Fix this by reverting the change from of_mdio_parse_addr to
of_mdio_parse_addr.
Fixes: 342fa19644 ("mdio: mux: make child bus walking more permissive and errors more verbose")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking updates from David Miller:
"Reasonably busy this cycle, but perhaps not as busy as in the 4.12
merge window:
1) Several optimizations for UDP processing under high load from
Paolo Abeni.
2) Support pacing internally in TCP when using the sch_fq packet
scheduler for this is not practical. From Eric Dumazet.
3) Support mutliple filter chains per qdisc, from Jiri Pirko.
4) Move to 1ms TCP timestamp clock, from Eric Dumazet.
5) Add batch dequeueing to vhost_net, from Jason Wang.
6) Flesh out more completely SCTP checksum offload support, from
Davide Caratti.
7) More plumbing of extended netlink ACKs, from David Ahern, Pablo
Neira Ayuso, and Matthias Schiffer.
8) Add devlink support to nfp driver, from Simon Horman.
9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa
Prabhu.
10) Add stack depth tracking to BPF verifier and use this information
in the various eBPF JITs. From Alexei Starovoitov.
11) Support XDP on qed device VFs, from Yuval Mintz.
12) Introduce BPF PROG ID for better introspection of installed BPF
programs. From Martin KaFai Lau.
13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann.
14) For loads, allow narrower accesses in bpf verifier checking, from
Yonghong Song.
15) Support MIPS in the BPF selftests and samples infrastructure, the
MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David
Daney.
16) Support kernel based TLS, from Dave Watson and others.
17) Remove completely DST garbage collection, from Wei Wang.
18) Allow installing TCP MD5 rules using prefixes, from Ivan
Delalande.
19) Add XDP support to Intel i40e driver, from Björn Töpel
20) Add support for TC flower offload in nfp driver, from Simon
Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub
Kicinski, and Bert van Leeuwen.
21) IPSEC offloading support in mlx5, from Ilan Tayari.
22) Add HW PTP support to macb driver, from Rafal Ozieblo.
23) Networking refcount_t conversions, From Elena Reshetova.
24) Add sock_ops support to BPF, from Lawrence Brako. This is useful
for tuning the TCP sockopt settings of a group of applications,
currently via CGROUPs"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits)
net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap
dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap
cxgb4: Support for get_ts_info ethtool method
cxgb4: Add PTP Hardware Clock (PHC) support
cxgb4: time stamping interface for PTP
nfp: default to chained metadata prepend format
nfp: remove legacy MAC address lookup
nfp: improve order of interfaces in breakout mode
net: macb: remove extraneous return when MACB_EXT_DESC is defined
bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case
bpf: fix return in load_bpf_file
mpls: fix rtm policy in mpls_getroute
net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t
net, ax25: convert ax25_route.refcount from atomic_t to refcount_t
net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t
net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t
...
The data manual for DP83867IR/CR, SNLS484E[1], revised march 2017,
advises that strapping RX_DV/RX_CTRL pin in mode 1 and 2 is not
supported (see note below Table 5 (4-Level Strap Pins)).
There are some boards which have the pin strapped this way and need
software workaround suggested by the data manual. Bit[7] of
Configuration Register 4 (address 0x0031) must be cleared to 0. This
ensures proper operation of the PHY.
Implement driver support for device-tree property meant to advertise
the wrong strapping.
[1] http://www.ti.com/lit/ds/snls484e/snls484e.pdf
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
[nsekhar@ti.com: rebase to mainline, code simplification]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
around. Highlights include:
- Conversion of a bunch of security documentation into RST
- The conversion of the remaining DocBook templates by The Amazing
Mauro Machine. We can now drop the entire DocBook build chain.
- The usual collection of fixes and minor updates.
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Merge tag 'docs-4.13' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"There has been a fair amount of activity in the docs tree this time
around. Highlights include:
- Conversion of a bunch of security documentation into RST
- The conversion of the remaining DocBook templates by The Amazing
Mauro Machine. We can now drop the entire DocBook build chain.
- The usual collection of fixes and minor updates"
* tag 'docs-4.13' of git://git.lwn.net/linux: (90 commits)
scripts/kernel-doc: handle DECLARE_HASHTABLE
Documentation: atomic_ops.txt is core-api/atomic_ops.rst
Docs: clean up some DocBook loose ends
Make the main documentation title less Geocities
Docs: Use kernel-figure in vidioc-g-selection.rst
Docs: fix table problems in ras.rst
Docs: Fix breakage with Sphinx 1.5 and upper
Docs: Include the Latex "ifthen" package
doc/kokr/howto: Only send regression fixes after -rc1
docs-rst: fix broken links to dynamic-debug-howto in kernel-parameters
doc: Document suitability of IBM Verse for kernel development
Doc: fix a markup error in coding-style.rst
docs: driver-api: i2c: remove some outdated information
Documentation: DMA API: fix a typo in a function name
Docs: Insert missing space to separate link from text
doc/ko_KR/memory-barriers: Update control-dependencies example
Documentation, kbuild: fix typo "minimun" -> "minimum"
docs: Fix some formatting issues in request-key.rst
doc: ReSTify keys-trusted-encrypted.txt
doc: ReSTify keys-request-key.txt
...
This patch add set_loopback in phy_driver, which is used by MAC
driver to enable or disable phy loopback. it also add a generic
genphy_loopback function, which use BMCR loopback bit to enable
or disable loopback.
Signed-off-by: Lin Yun Sheng <linyunsheng@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function, skb_complete_tx_timestamp(), used to allow passing in a
NULL pointer for the time stamps, but that was changed in commit
62bccb8cdb ("net-timestamp: Make the
clone operation stand-alone from phy timestamping"), and the existing
call sites, all of which are in the dp83640 driver, were fixed up.
Even though the kernel-doc was subsequently updated in commit
7a76a021cd ("net-timestamp: Update
skb_complete_tx_timestamp comment"), still a bug fix from Manfred
Rudigier came into the driver using the old semantics. Probably
Manfred derived that patch from an older kernel version.
This fix should be applied to the stable trees as well.
Fixes: 81e8f2e930 ("net: dp83640: Fix tx timestamp overflow handling.")
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The memcpy annotation triggers for a fixed-length buffer copy:
In file included from /git/arm-soc/arch/arm64/include/asm/processor.h:30:0,
from /git/arm-soc/arch/arm64/include/asm/spinlock.h:21,
from /git/arm-soc/include/linux/spinlock.h:87,
from /git/arm-soc/include/linux/seqlock.h:35,
from /git/arm-soc/include/linux/time.h:5,
from /git/arm-soc/include/linux/stat.h:21,
from /git/arm-soc/include/linux/module.h:10,
from /git/arm-soc/drivers/net/phy/smsc.c:20:
In function 'memcpy',
inlined from 'smsc_get_strings' at /git/arm-soc/drivers/net/phy/smsc.c:166:3:
/git/arm-soc/include/linux/string.h:309:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter
Using strncpy instead of memcpy should do the right thing here.
Fixes: 030a89028d ("net: phy: smsc: Implement PHY statistics")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The commit ("net/phy: micrel: Add workaround for bad autoneg") fixes an
autoneg failure case by resetting the hardware. This turns off
intterupts. Things will work themselves out if the phy polls, as it will
figure out it's state during a poll. However if the phy uses only
intterupts, the phy will stall, since interrupts are off. This patch
fixes the issue by calling config_intr after resetting the phy.
Fixes: d2fd719bcb ("net/phy: micrel: Add workaround for bad autoneg ")
Signed-off-by: Zach Brown <zach.brown@ni.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Provide link partner advertising information.
Removed testing for gigabit modes, which is useless for a fast ethernet phy.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make return value void since function never return meaningfull value
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After commit 90eff9096c ("net: phy: Allow splitting MDIO
bus/device support from PHYs") we could create a configuration where
MDIO_DEVICE=y and PHYLIB=m which leads to the following undefined
references:
drivers/built-in.o: In function `thunder_mdiobus_pci_remove':
>> mdio-thunder.c:(.text+0x2a212f): undefined reference to
>> `mdiobus_unregister'
>> mdio-thunder.c:(.text+0x2a2138): undefined reference to
>> `mdiobus_free'
drivers/built-in.o: In function `thunder_mdiobus_pci_probe':
mdio-thunder.c:(.text+0x2a22e7): undefined reference to
`devm_mdiobus_alloc_size'
mdio-thunder.c:(.text+0x2a236f): undefined reference to
`of_mdiobus_register'
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: 90eff9096c ("net: phy: Allow splitting MDIO bus/device support from PHYs")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The MDIO reset GPIO is really a classical optional GPIO property case,
so devm_gpiod_get_optional() should have been used, not devm_gpiod_get().
Doing this saves several LoCs...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 4c5e7a2c05 ("dt-bindings: mdio: Clarify binding document")
declared that a MDIO reset GPIO property should have only a single GPIO
reference/specifier, however the supporting code was left intact, still
burdening the kernel with now apparently useless loops -- get rid of them.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Give back all modes advertised by the link partner. This change brings
the marvell phy driver in line with all other phy drivers.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes: 0d7e2d2166 ("IB/ipoib: add get_link_ksettings in ethtool")
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add phylib support for the Marvell Alaska X 10 Gigabit PHY (MV88X3310).
This phy is able to operate at 10G, 1G, 100M and 10M speeds, and only
supports Clause 45 accesses.
The PHY appears (based on the vendor IDs) to be two different vendors
IP, with each devad containing several instances.
This PHY driver has only been tested with the RJ45 copper port, fiber
port and a Marvell Armada 8040-based ethernet interface.
It should be noted that to use the full range of speeds, MAC drivers
need to also reconfigure the link mode as per phydev->interface, since
the PHY automatically changes its interface mode depending on the
negotiated speed.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the old 10G genphy support to sit beside the new clause 45 library
functions, so all the 10G phy code is together.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
genphy_restart_aneg() can only restart autonegotiation on clause 22
PHYs. Add a phy_restart_aneg() function which selects between the
clause 22 and clause 45 restart functionality depending on the PHY
type and whether the Clause 45 PHY supports the Clause 22 register set.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Avoid calling genphy_aneg_done() for PHYs that do not implement the
Clause 22 register set.
Clause 45 PHYs may implement the Clause 22 register set along with the
Clause 22 extension MMD. Hence, we can't simply block access to the
Clause 22 functions based on the PHY being a Clause 45 PHY.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add generic helpers for 802.3 clause 45 PHYs for >= 10Gbps support.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's unused, so remove it.
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The u32 variable v is being checked to see if an error return is
less than zero and this check has no effect because it is unsigned.
Fix this by making v and int (this also matches the type of
cb->bus_number which is assigned to the value in v).
Detected by CoverityScan, CID#1440454 ("Unsigned compared against zero")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix kernel-doc warnings (typo) in drivers/net/phy/phy.c:
..//drivers/net/phy/phy.c:259: warning: No description found for parameter 'features'
..//drivers/net/phy/phy.c:259: warning: Excess function parameter 'feature' description in 'phy_lookup_setting'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Most of the PHYs supported by the SMSC driver have a counter of symbol
errors. This is 16 bit wide and wraps around when it reaches its
maximum value.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-By: Woojung Huh <Woojung.Huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
functions m88e1510_get_temp_critical, m88e1510_set_temp_critical and
m88e1510_get_temp_alarm can be made static as they not need to be
in global scope.
Cleans up sparse warnings:
"symbol 'm88e1510_get_temp_alarm' was not declared. Should it be static?"
"symbol 'm88e1510_get_temp_critical' was not declared. Should it be
static?"
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If any errors are encountered while walking the device tree structure of
the MDIO bus for children, the code may silently continue, silently
exit, or throw an error and exit. This make it difficult for device
tree writers to know there is an error. Also, it makes any error in a
child entry of the MDIO bus be fatal for all entries. Instead, we
should provide verbose errors describing the error and then attempt to
continue if it all possible. Also, use of_mdio_parse_addr()
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
use of_mdio_parse_addr() in place of an OF read of reg and a bounds
check (which is litterally the exact same thing that
of_mdio_parse_addr() does)
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
These bits seem to be lost after a suspend/resume cycle so just set them
again. Do this by splitting the handling of these bits into a function
that is also called on resume.
This patch fixes ethernet suspend/resume on imx6ul-14x14-evk boards.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adding Microchip 9477 Phy included in KSZ9477 Switch.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Woojung Huh <Woojung.Huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Auto-loading of the Marvell DSA driver has stopped working with recent
kernels. This seems to be due to the change of binding for DSA devices,
moving them from the platform bus to the MDIO bus.
In order for module auto-loading to work, we need to provide a MODALIAS
string in the uevent file for the device. However, the device core does
not automatically provide this, and needs each bus_type to implement a
uevent method to generate these strings. The MDIO bus does not provide
such a method, so no MODALIAS string is provided:
.# cat /sys/bus/mdio_bus/devices/f1072004.mdio-mii\:04/uevent
DRIVER=mv88e6085
OF_NAME=switch
OF_FULLNAME=/soc/internal-regs/mdio@72004/switch@4
OF_COMPATIBLE_0=marvell,mv88e6085
OF_COMPATIBLE_N=1
In the case of OF-based devices, the solution is easy -
of_device_uevent_modalias() does the work for us. After this is done,
the uevent file looks like this:
.# cat /sys/bus/mdio_bus/devices/f1072004.mdio-mii\:04/uevent
DRIVER=mv88e6085
OF_NAME=switch
OF_FULLNAME=/soc/internal-regs/mdio@72004/switch@4
OF_COMPATIBLE_0=marvell,mv88e6085
OF_COMPATIBLE_N=1
MODALIAS=of:NswitchT<NULL>Cmarvell,mv88e6085
which results in auto-loading of the Marvell DSA driver on Clearfog
platforms.
Fixes: c0405563a6 ("ARM: dts: armada-388-clearfog: Utilize new DSA binding")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Marvell driver incorrectly provides phydev->lp_advertising as the
logical and of the link partner's advert and our advert. This is
incorrect - this field is supposed to store the link parter's unmodified
advertisment.
This allows ethtool to report the correct link partner auto-negotiation
status.
Fixes: be937f1f89 ("Marvell PHY m88e1111 driver fix")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add basic support for Cortina PHY drivers. Support only CS4340 for now.
The phys are not compatible with IEEE 802.3 clause 22/45 registers.
Implement proper read_status support. The generic 10G phy driver causes
bus register access errors.
The driver should be described using the "ethernet-phy-id" device tree
compatible.
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some Ethernet drivers will attach/connect to a PHY device before calling
register_netdevice() which is responsible for calling netdev_register_kobject()
which would do the network device's kobject initialization. In such a case,
sysfs_create_link() would return -ENOENT because the network device's kobject
is not ready yet, and we would fail to connect to the PHY device.
In order to keep things simple and symetrical, we just take the success path as
indicative of the ability to access the network device's kobject, and create
the second link if that's the case.
Fixes: 5568363f0c ("net: phy: Create sysfs reciprocal links for attached_dev/phydev")
Reported-by: Woojung Hung <Woojung.Huh@microchip.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Overlapping changes in drivers/net/phy/marvell.c, bug fix in 'net'
restricting a HW workaround alongside cleanups in 'net-next'.
Signed-off-by: David S. Miller <davem@davemloft.net>
Bring all the page names together, remove the repeats, and make them
uniform.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is a common pattern of first reading the currently selected page
and then changing to another page. Add a helper to do this.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
EXT_ADDR_PAGE is the same meaning as MII_MARVELL_PHY_PAGE, i.e. change
page. Replace it will calls to the helpers.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace magic numbers for PHY pages with symbolic names.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is currently no way for a program scanning /sys to know whether a
network device is attached to a particular PHY device, just like the PHY
device is not pointed back to its attached network device.
Create a symbolic link in the network device's namespace named "phydev"
which points to the PHY device and create a symbolic link in the PHY
device's namespace named "attached_dev" that points back to the network
device. These links are set up during phy_attach_direct() and removed
during phy_detach() for symetry.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit af6b6967d6 ("net: phy: export genphy_config_init()") introduced
this EXPORT_SYMBOL and put it after gen10g_soft_reset() instead of
directly after genphy_config_init. Probably this happend when the patch
was applied because http://patchwork.ozlabs.org/patch/339622/ looks ok.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The 88m1101 has an errata when configuring autoneg. However, it was
being applied to many other Marvell PHYs as well. Limit its scope to
just the 88m1101.
Fixes: 76884679c6 ("phylib: Add support for Marvell 88e1111S and 88e1145")
Reported-by: Daniel Walker <danielwa@cisco.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Harini Katakam <harinik@xilinx.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix build errors by making this driver depend on OF_MDIO, like
several other similar drivers do.
drivers/built-in.o: In function `octeon_mdiobus_remove':
mdio-octeon.c:(.text+0x196ee0): undefined reference to `mdiobus_unregister'
mdio-octeon.c:(.text+0x196ee8): undefined reference to `mdiobus_free'
drivers/built-in.o: In function `octeon_mdiobus_probe':
mdio-octeon.c:(.text+0x196f1d): undefined reference to `devm_mdiobus_alloc_size'
mdio-octeon.c:(.text+0x196ffe): undefined reference to `of_mdiobus_register'
mdio-octeon.c:(.text+0x197010): undefined reference to `mdiobus_free'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mauro says:
This patch series convert the remaining DocBooks to ReST.
The first version was originally
send as 3 patch series:
[PATCH 00/36] Convert DocBook documents to ReST
[PATCH 0/5] Convert more books to ReST
[PATCH 00/13] Get rid of DocBook
The lsm book was added as if it were a text file under
Documentation. The plan is to merge it with another file
under Documentation/security, after both this series and
a security Documentation patch series gets merged.
It also adjusts some Sphinx-pedantic errors/warnings on
some kernel-doc markups.
I also added some patches here to add PDF output for all
existing ReST books.
