Commit Graph

918 Commits

Author SHA1 Message Date
Kai-Heng Feng b33b7cd6fd sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79
Some sky2 chips fire IRQ after S3, before the driver is fully resumed:
[ 686.804877] do_IRQ: 1.37 No irq handler for vector

This is likely a platform bug that device isn't fully quiesced during
S3. Use MSI-X, maskable MSI or INTx can prevent this issue from
happening.

Since MSI-X and maskable MSI are not supported by this device, fallback
to use INTx on affected platforms.

BugLink: https://bugs.launchpad.net/bugs/1807259
BugLink: https://bugs.launchpad.net/bugs/1809843
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-04 11:31:25 -08:00
Antoine Tenart 1f69afce38 net: mvpp2: set the GMAC, XLG MAC, XPCS and MPCS in reset when a port is down
This patch adds calls in the stop() helper to ensure both MACs and
both PCS blocks are set in reset when the user manually sets a port
down. This is done so that we have the exact same block reset states at
boot time and when a port is set down.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:35 -08:00
Antoine Tenart 7409e66e9e net: mvpp2: set the XPCS and MPCS in reset when not used
This patch sets both the XPCS and MPCS blocks in reset when they aren't
used. This is done both at boot time and when reconfiguring a port mode.
The advantage now is that only the PCS used is set out of reset when the
port is configured (10GKR uses the MCPS while RXAUI uses the XPCS).

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:35 -08:00
Antoine Tenart 5434e8faf0 net: mvpp2: reset the MACs when reconfiguring a port
This patch makes sure both PPv2 MACs (GMAC + XLG MAC) are set in reset
while a port is reconfigured. This is done so that we make sure a MAC is
in a reset state when not used, as only one of the two will be set out
of reset after the port is configured properly.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:35 -08:00
Antoine Tenart 649e51d560 net: mvpp2: rework the XLG MAC reset handling
This patch reworks the way the XLG MAC is set in reset: the XLG MAC is
set in reset at probe time and taken out of this state only when used.
The idea is to move forward a situation where only the blocks used are
taken out of reset. This also has the effect to handle the GMAC and the
XLG MAC in a similar way (the GMAC already is set in reset at boot
time).

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:35 -08:00
Antoine Tenart 1970ee9614 net: mvpp2: force the XLG MAC link up or down when not using in-band
This patch force the XLG MAC link state in the phylink link_up() and
link_down() helpers when not using in-band auto-negotiation. This mimics
what's already done for the GMAC and follows what's advised in the
phylink documentation.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart f17e70d258 net: mvpp2: only update the XLG configuration when needed
This patch improves the XLG configuration function, to only update the
XLG configuration register when a change is needed. This helps not
writing over and over the same XLG configuration each time phylink
request the MAC to be configured. This mimics the GMAC configuration
function.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart 6b10bfc51c net: mvpp2: always disable both MACs when disabling a port
This patch modifies the port_disable() helper to always disable both the
GMAC and the XLG MAC when called. At boot time we do not know of a port
was enabled in the firmware/bootloader, and if so what mode was used
(hence which of the two MACs was used).

This also help in implementing a logic where all blocks are disabled
when not used, and only enabled regarding the current mode used on a
given port.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart 9a490e3406 net: mvpp2: some AN fields require the link to be down when updated
The GMAC configuration helper modifies values in the auto-negotiation
register. Some of its values require the port to be forced down when
modifying their values. This patches fixes the check made on the bit to
be updated in this register, so that the port is forced down when
needed. This fix cases where some of those parameters were updated, but
not taken into account, such as when using RGMII interfaces.

Fixes: d14e078f23 ("net: marvell: mvpp2: only reprogram what is necessary on mac_config")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart 3f13684948 net: mvpp2: fix the computation of the RXQs
The patch fixes the computation of RXQs being used by the PPv2 driver,
which is set depending on the PPv2 engine version and the queue mode
used. There are three cases:

- PPv2.1: 1 RXQ per CPU.
- PPV2.2 with MVPP2_QDIST_MULTI_MODE: 1 RXQ per CPU.
- PPv2.2 with MVPP2_QDIST_SINGLE_MODE: 1 RXQ is shared between the CPUs.

The PPv2 engine supports a maximum of 32 queues per port. This patch
adds a check so that we do not overstep this maximum.

It appeared the calculation was broken for PPv2.1 engines since
f8c6ba8424, as PPv2.1 ports ended up with a single RXQ while they
needed 4. This patch fixes it.

Fixes: f8c6ba8424 ("net: mvpp2: use only one rx queue per port per CPU")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart 8b318f30ab net: mvpp2: fix validate for PPv2.1
The Phylink validate function is the Marvell PPv2 driver makes a check
on the GoP id. This is valid an has to be done when using PPv2.2 engines
but makes no sense when using PPv2.1. The check done when using an RGMII
interface makes sure the GoP id is not 0, but this breaks PPv2.1. Fixes
it.

Fixes: 0fb628f0f2 ("net: mvpp2: fix phylink handling of invalid PHY modes")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart d78a18091f net: mvpp2: reconfiguring the port interface is PPv2.2 specific
This patch adds a check on the PPv2 version in-use not to reconfigure
the port mode when an interface is updated when using PPv2.1 as the
functions called are PPv2.2 specific.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart 052f7c8bac net: mvpp2: a port can be disabled even if we use the link IRQ
We had a check in the mvpp2_mac_link_down() function (called by phylink)
to avoid disabling the port when link interrupts are used. It turned out
the interrupt can still be used with the port disabled. We can thus
remove this check.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart 0caa756b77 net: mvpp2: fix alignment of MVPP2_GMAC_CONFIG_MII_SPEED definition
Cosmetic patch fix the alignment of the MVPP2_GMAC_CONFIG_MII_SPEED
macro definition.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart 31383c03c0 net: mvpp2: update the port documentation regarding the GoP
The Marvell PPv2 port structure stores the GoP id of a given port. This
information is specific to PPv2.2, but cannot be used by PPv2.1. Update
its comment to denote this specificity.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart 6bdb87ef9f net: mvpp2: fix a typo in the header
This cosmetic patch fixes a typo made in a comment in the Marvell PPv2
Ethernet driver header.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Marek Behún 031b922bfd net: marvell: neta: disable comphy when setting mode
The comphy driver for Armada 3700 by Miquèl Raynal (which is currently
in linux-next) does not actually set comphy mode when phy_set_mode_ext
is called. The mode is set at next call of phy_power_on.

Update the driver to semantics similar to mvpp2: helper
mvneta_comphy_init sets comphy mode and powers it on.
When mode is to be changed in mvneta_mac_config, first power the comphy
off, then call mvneta_comphy_init (which sets the mode to new one).

Only do this when new mode is different from old mode.

This should also work for Armada 38x, since in that comphy driver
methods power_on and power_off are unimplemented.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 11:23:10 -08:00
Maxime Chevallier b38d198cfb net: mvpp2: Add 2.5GBaseT support
The PPv2 controller is able to support 2.5G speeds, allowing to use
2.5GBASET in conjunction with PHYs that use 2500BASEX as their MII
interface when using this mode.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24 17:45:25 -08:00
David S. Miller 70f3522614 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Three conflicts, one of which, for marvell10g.c is non-trivial and
requires some follow-up from Heiner or someone else.

The issue is that Heiner converted the marvell10g driver over to
use the generic c45 code as much as possible.

However, in 'net' a bug fix appeared which makes sure that a new
local mask (MDIO_AN_10GBT_CTRL_ADV_NBT_MASK) with value 0x01e0
is cleared.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24 12:06:19 -08:00
Russell King a8fef9ba58 net: marvell: mvneta: fix DMA debug warning
Booting 4.20 on SolidRun Clearfog issues this warning with DMA API
debug enabled:

WARNING: CPU: 0 PID: 555 at kernel/dma/debug.c:1230 check_sync+0x514/0x5bc
mvneta f1070000.ethernet: DMA-API: device driver tries to sync DMA memory it has not allocated [device address=0x000000002dd7dc00] [size=240 bytes]
Modules linked in: ahci mv88e6xxx dsa_core xhci_plat_hcd xhci_hcd devlink armada_thermal marvell_cesa des_generic ehci_orion phy_armada38x_comphy mcp3021 spi_orion evbug sfp mdio_i2c ip_tables x_tables
CPU: 0 PID: 555 Comm: bridge-network- Not tainted 4.20.0+ #291
Hardware name: Marvell Armada 380/385 (Device Tree)
[<c0019638>] (unwind_backtrace) from [<c0014888>] (show_stack+0x10/0x14)
[<c0014888>] (show_stack) from [<c07f54e0>] (dump_stack+0x9c/0xd4)
[<c07f54e0>] (dump_stack) from [<c00312bc>] (__warn+0xf8/0x124)
[<c00312bc>] (__warn) from [<c00313b0>] (warn_slowpath_fmt+0x38/0x48)
[<c00313b0>] (warn_slowpath_fmt) from [<c00b0370>] (check_sync+0x514/0x5bc)
[<c00b0370>] (check_sync) from [<c00b04f8>] (debug_dma_sync_single_range_for_cpu+0x6c/0x74)
[<c00b04f8>] (debug_dma_sync_single_range_for_cpu) from [<c051bd14>] (mvneta_poll+0x298/0xf58)
[<c051bd14>] (mvneta_poll) from [<c0656194>] (net_rx_action+0x128/0x424)
[<c0656194>] (net_rx_action) from [<c000a230>] (__do_softirq+0xf0/0x540)
[<c000a230>] (__do_softirq) from [<c00386e0>] (irq_exit+0x124/0x144)
[<c00386e0>] (irq_exit) from [<c009b5e0>] (__handle_domain_irq+0x58/0xb0)
[<c009b5e0>] (__handle_domain_irq) from [<c03a63c4>] (gic_handle_irq+0x48/0x98)
[<c03a63c4>] (gic_handle_irq) from [<c0009a10>] (__irq_svc+0x70/0x98)
...

This appears to be caused by mvneta_rx_hwbm() calling
dma_sync_single_range_for_cpu() with the wrong struct device pointer,
as the buffer manager device pointer is used to map and unmap the
buffer.  Fix this.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-20 19:55:51 -08:00
David S. Miller 375ca548f7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two easily resolvable overlapping change conflicts, one in
TCP and one in the eBPF verifier.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-20 00:34:07 -08:00
Kai-Heng Feng 1765f5dcd0 sky2: Increase D3 delay again
Another platform requires even longer delay to make the device work
correctly after S3.

So increase the delay to 300ms.

BugLink: https://bugs.launchpad.net/bugs/1798921

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-19 14:16:41 -08:00
Alexey Khoroshilov e928b5d6b7 net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe()
If mv643xx_eth_shared_of_probe() fails, mv643xx_eth_shared_probe()
leaves clk enabled.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:44:26 -08:00
Russell King 1d9b041e9c net: marvell: mvpp2: use mvpp2_is_xlg() helper elsewhere
There are several places which make the decision whether to access the
XLGMAC vs GMAC that only check for PHY_INTERFACE_MODE_10GKR and not its
XAUI variant.  Switch these to use the new helper so that we have
consistency through the driver.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12 12:32:51 -05:00
Russell King b7d286f01b net: marvell: mvpp2: add mvpp2_is_xlg() helper
Add a mvpp2_is_xlg() helper to identify whether the interface mode
should be using the XLGMAC rather than the GMAC.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12 12:32:51 -05:00
Christoph Hellwig e86b76f633 pxa168_eth: pass struct device to DMA API functions
The DMA API generally relies on a struct device to work properly, and
only barely works without one for legacy reasons.  Pass the easily
available struct device from the platform_device to remedy this.

Note that this driver seems to entirely lack dma_map_single error
handling, but that is left for another time.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12 12:09:23 -05:00
Russell King e240b7dbb7 net: marvell: mvpp2: clear flow control modes in 10G mode
When mvpp2 configures the flow control modes in mvpp2_xlg_config() for
10G mode, it only ever set the flow control enable bits.  There is no
mechanism to clear these bits, which means that userspace is unable to
use standard APIs to disable flow control (the only way is to poke the
register directly.)

Fix the missing bit clearance to allow flow control to be disabled.
This means that, by default, as there is no negotiation in 10G modes
with mvpp2, flow control is now disabled rather than being rx-only.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-09 09:34:00 -08:00
Russell King a465047717 net: marvell: mvpp2: fix AN restart
phylink already limits which interface modes are able to call the
MACs AN restart function, but in any case, the commentry seems
incorrect: the AN restart bit does not automatically clear when
set.  This has been found via manual setting using devmem2, and
we can observe that the AN does indeed restart and complete, yet
the AN restart bit remains set.  Explicitly clear the AN restart
bit.

Tested-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 23:08:39 -08:00
Russell King 417f3d08fe net: marvell: mvpp2: read correct pause bits
When reading the pause bits in mac_link_state, mvpp2 was reporting
the state of the "active pause" bits, which are set when the MAC is
in pause mode.  This is not what phylink wants - we want the
negotiated pause state.  Fix the definition so we read the correct
bits.

Tested-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 23:08:39 -08:00
Russell King d14e078f23 net: marvell: mvpp2: only reprogram what is necessary on mac_config
mac_config() can be called at any point, and the expected behaviour
from MAC drivers is to only reprogram when necessary - and certainly
avoid taking the link down on every call.

Unfortunately, mvpp2 does exactly that - it takes the link down, and
reprograms everything, and then releases the forced-link down.

This is bad, it can cause the link to bounce:

- SFP detects signal, disables LOS indication.
- SFP code calls into phylink, calling phylink_sfp_link_up() which
  triggers a resolve.
- phylink_resolve() calls phylink_get_mac_state() and finds the MAC
  reporting link up.
- phylink wants to configure the pause mode on the MAC, so calls
  phylink_mac_config()
- mvpp2 takes the link down temporarily, generating a MAC link down
  event followed by another MAC link event.
- phylink calls mac_link_up() and then processes the MAC link down
  event.
- phylink_resolve() gets called again, registers the link down, and
  calls mach_link_down() before re-running itself.
- phylink_resolve() starts again at step 3 above.  This sequence
  repeats.

GMAC versions prior to mvpp2 do not require the link to be taken down
except when certain link properties (eg, switching between SGMII and
1000base-X mode, or enabling/disabling in-band negotiation) are
changed.  Implement this for mvpp2.

Tested-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 23:08:39 -08:00
Russell King 316734fdcf net: marvell: mvpp2: fix stuck in-band SGMII negotiation
It appears that the mvpp22 can get stuck with SGMII negotiation.  The
symptoms are that in-band negotiation never completes and the partner
(eg, PHY) never reports SGMII link up, or if it supports negotiation
bypass, goes into negotiation bypass mode (which will happen when the
PHY sees that the MAC is alive but gets no response.)

Triggering the PHY end of the link to re-negotiate results in the
bypass bit clearing on the PHY, and then re-setting - indicating that
the problem is at the mvpp22 GMAC end.

Asserting the GMAC reset and de-asserting it resolves the issue.
Arrange to assert the GMAC reset at probe time, and deassert it only
after we have configured the GMAC for the appropriate mode.  This
resolves the issue.

Tested-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 23:08:39 -08:00
Russell King 388ca27ffd net: marvell: mvpp2: phylink compliance updates
Sven Auhagen reported issues with negotiation on a couple of his
platforms using a mixture of SFP and PHYs in various different
modes.  Debugging to root cause proved difficult, but essentially
the problem comes down to the mvpp2 phylink implementation being
slightly at odds with what is expected.

phylink operates in three modes: phy, fixed-link, and in-band mode.

In the first two modes, the expected behaviour from a MAC driver is
that phylink resolves the operating mode and passes the mode to the
MAC driver for it to program, including when the link should be
brought up or taken down.  This is basically the same as the libphy
approach.  This does not negate the requirement to advertise a correct
control word for interface modes that have control words where that
can be reasonably controlled.

The second mode is in-band mode, where the MAC is expected to use the
in-band control word to determine the operating mode.

The mvneta driver implements the correct pattern required to support
this: configure the port interface type separately from the in-band
mode(s).  This is now specified in the phylink documentation patches.

mvpp2 was programming in-band mode for SGMII and the 802.3z modes no
what, and avoided forcing the link up in fixed/phy modes.  This caused
a problem with some boards where the PHY is by default programmed to
enter AN bypass mode, the PHY would report that the link was up, but
the mvpp2 never completed the exchange of control word.

Another issue that mvpp2 has is it sets SGMII AN format control word
for both SGMII and 802.3z modes. The format of the control word is
defined by MVPP2_GMAC_INBAND_AN_MASK, which should be set for SGMII
and clear for 802.3z. Available Marvell documentation for earlier
GMAC implementations does not make this clear, but this has been
ascertained via extensive testing on earlier GMAC implementations,
and then confirmed with a Macchiatobin Single Shot connected to a
Clearfog: when MVPP2_GMAC_INBAND_AN_MASK is set, the clearfog does
not receive the advertised pause mode settings.

Lastly, there is no flow control in the in-band control word in Cisco
SGMII, setting the flow control autonegotiation bit even with a PHY
that has the Marvell extension to send this information does not result
in the flow control being enabled at the MAC.  We need to do this
manually using the information provided via phylink.

Re-code mvpp2's mac_config() and mac_link_up() to follow this pattern.
This allows Sven Auhagen's board and Macchiatobin to reliably bring
the link up with the 88e1512 PHY with phylink operating in PHY mode
with COMPHY built as a module but the rest of the networking built-in,
and u-boot having brought up the interface.  in-band mode requires an
additional patch to resolve another problem.

Tested-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 23:08:39 -08:00
David S. Miller a655fe9f19 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
An ipvlan bug fix in 'net' conflicted with the abstraction away
of the IPV6 specific support in 'net-next'.

Similarly, a bug fix for mlx5 in 'net' conflicted with the flow
action conversion in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 15:00:17 -08:00
Russell King a10c1c8191 net: marvell: neta: add comphy support
Add support for the common phy binding, so that we can reconfigure the
comphy according to the desired ethernet speed.  This will allow us to
support 1000base-X and 2500base-X SFPs dynamically on SolidRun Clearfog.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07 18:10:26 -08:00
Russell King bf2fa12593 net: marvell: mvpp2: fix lack of link interrupts
Sven Auhagen reports that if he changes a SFP+ module for a SFP module
on the Macchiatobin Single Shot, the link does not come back up.  For
Sven, it is as easy as:

- Insert a SFP+ module connected, and use ping6 to verify link is up.
- Remove SFP+ module
- Insert SFP 1000base-X module use ping6 to verify link is up: Link
  up event did not trigger and the link is down

but that doesn't show the problem for me.  Locally, this has been
reproduced by:

- Boot with no modules.
- Insert SFP+ module, confirm link is up.
- Replace module with 25000base-X module.  Confirm link is up.
- Set remote end down, link is reported as dropped at both ends.
- Set remote end up, link is reported up at remote end, but not local
  end due to lack of link interrupt.

Fix this by setting up both GMAC and XLG interrupts for port 0, but
only unmasking the appropriate interrupt according to the current mode
set in the mac_config() method.  However, only do the mask/unmask
dance when we are really changing the link mode to avoid missing any
link interrupts.

Tested-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-05 10:40:28 -08:00
Russell King 4a4cec7257 net: marvell: mvpp2: use phy_interface_mode_is_8023z() helper
Use the phy_interface_mode_is_8023z() helper for detecting interface
modes that use 802.3z serial encoding.  This is equivalent to testing
for both 1000base-X and 2500base-X.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-05 10:40:28 -08:00
Dan Carpenter 294c149a20 skge: potential memory corruption in skge_get_regs()
The "p" buffer is 0x4000 bytes long.  B3_RI_WTO_R1 is 0x190.  The value
of "regs->len" is in the 1-0x4000 range.  The bug here is that
"regs->len - B3_RI_WTO_R1" can be a negative value which would lead to
memory corruption and an abrupt crash.

Fixes: c3f8be9618 ("[PATCH] skge: expand ethtool debug register dump")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-01 10:00:22 -08:00
Linus Torvalds e8746440bf Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix regression in multi-SKB responses to RTM_GETADDR, from Arthur
    Gautier.

 2) Fix ipv6 frag parsing in openvswitch, from Yi-Hung Wei.

 3) Unbounded recursion in ipv4 and ipv6 GUE tunnels, from Stefano
    Brivio.

 4) Use after free in hns driver, from Yonglong Liu.

 5) icmp6_send() needs to handle the case of NULL skb, from Eric
    Dumazet.

 6) Missing rcu read lock in __inet6_bind() when operating on mapped
    addresses, from David Ahern.

 7) Memory leak in tipc-nl_compat_publ_dump(), from Gustavo A. R. Silva.

 8) Fix PHY vs r8169 module loading ordering issues, from Heiner
    Kallweit.

 9) Fix bridge vlan memory leak, from Ido Schimmel.

10) Dev refcount leak in AF_PACKET, from Jason Gunthorpe.

11) Infoleak in ipv6_local_error(), flow label isn't completely
    initialized. From Eric Dumazet.

12) Handle mv88e6390 errata, from Andrew Lunn.

13) Making vhost/vsock CID hashing consistent, from Zha Bin.

14) Fix lack of UMH cleanup when it unexpectedly exits, from Taehee Yoo.

15) Bridge forwarding must clear skb->tstamp, from Paolo Abeni.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits)
  bnxt_en: Fix context memory allocation.
  bnxt_en: Fix ring checking logic on 57500 chips.
  mISDN: hfcsusb: Use struct_size() in kzalloc()
  net: clear skb->tstamp in bridge forwarding path
  net: bpfilter: disallow to remove bpfilter module while being used
  net: bpfilter: restart bpfilter_umh when error occurred
  net: bpfilter: use cleanup callback to release umh_info
  umh: add exit routine for UMH process
  isdn: i4l: isdn_tty: Fix some concurrency double-free bugs
  vhost/vsock: fix vhost vsock cid hashing inconsistent
  net: stmmac: Prevent RX starvation in stmmac_napi_poll()
  net: stmmac: Fix the logic of checking if RX Watchdog must be enabled
  net: stmmac: Check if CBS is supported before configuring
  net: stmmac: dwxgmac2: Only clear interrupts that are active
  net: stmmac: Fix PCI module removal leak
  tools/bpf: fix bpftool map dump with bitfields
  tools/bpf: test btf bitfield with >=256 struct member offset
  bpf: fix bpffs bitfield pretty print
  net: ethernet: mediatek: fix warning in phy_start_aneg
  tcp: change txhash on SYN-data timeout
  ...
2019-01-16 05:13:36 +12:00
Luis Chamberlain 07a85fe142 cross-tree: phase out dma_zalloc_coherent() on headers
The last few stragglers coccinelle doesn't pick up are on driver
specific header files. Phase those out as well as dma_alloc_coherent()
zeroes out the memory as well now too.

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-01-08 07:58:49 -05:00
Luis Chamberlain 750afb08ca cross-tree: phase out dma_zalloc_coherent()
We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.

This change was generated with the following Coccinelle SmPL patch:

@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@

-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-01-08 07:58:37 -05:00
Christophe JAILLET 1492623e83 octeontx2-af: Fix a resource leak in an error handling path in 'cgx_probe()'
If an error occurs after the call to 'pci_alloc_irq_vectors()', we must
call 'pci_free_irq_vectors()' in order to avoid a	resource leak.

The same sequence is already in place in the corresponding 'cgx_remove()'
function.

Fixes: 1463f382f5 ("octeontx2-af: Add support for CGX link management")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-04 12:44:50 -08:00
Linus Torvalds 43d86ee8c6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Several fixes here. Basically split down the line between newly
  introduced regressions and long existing problems:

   1) Double free in tipc_enable_bearer(), from Cong Wang.

   2) Many fixes to nf_conncount, from Florian Westphal.

   3) op->get_regs_len() can throw an error, check it, from Yunsheng
      Lin.

   4) Need to use GFP_ATOMIC in *_add_hash_mac_address() of fsl/fman
      driver, from Scott Wood.

   5) Inifnite loop in fib_empty_table(), from Yue Haibing.

   6) Use after free in ax25_fillin_cb(), from Cong Wang.

   7) Fix socket locking in nr_find_socket(), also from Cong Wang.

   8) Fix WoL wakeup enable in r8169, from Heiner Kallweit.

   9) On 32-bit sock->sk_stamp is not thread-safe, from Deepa Dinamani.

  10) Fix ptr_ring wrap during queue swap, from Cong Wang.

  11) Missing shutdown callback in hinic driver, from Xue Chaojing.

  12) Need to return NULL on error from ip6_neigh_lookup(), from Stefano
      Brivio.

  13) BPF out of bounds speculation fixes from Daniel Borkmann"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (57 commits)
  ipv6: Consider sk_bound_dev_if when binding a socket to an address
  ipv6: Fix dump of specific table with strict checking
  bpf: add various test cases to selftests
  bpf: prevent out of bounds speculation on pointer arithmetic
  bpf: fix check_map_access smin_value test when pointer contains offset
  bpf: restrict unknown scalars of mixed signed bounds for unprivileged
  bpf: restrict stack pointer arithmetic for unprivileged
  bpf: restrict map value pointer arithmetic for unprivileged
  bpf: enable access to ax register also from verifier rewrite
  bpf: move tmp variable into ax register in interpreter
  bpf: move {prev_,}insn_idx into verifier env
  isdn: fix kernel-infoleak in capi_unlocked_ioctl
  ipv6: route: Fix return value of ip6_neigh_lookup() on neigh_create() error
  net/hamradio/6pack: use mod_timer() to rearm timers
  net-next/hinic:add shutdown callback
  net: hns3: call hns3_nic_net_open() while doing HNAE3_UP_CLIENT
  ip: validate header length on virtual device xmit
  tap: call skb_probe_transport_header after setting skb->dev
  ptr_ring: wrap back ->producer in __ptr_ring_swap_queue()
  net: rds: remove unnecessary NULL check
  ...
2019-01-03 12:53:47 -08:00
Linus Torvalds c0ea81b4d3 USB/PHY patches for 4.21-rc1
Here is the big set of USB and PHY driver patches for 4.21-rc1.
 
 All of the usual bits are in here:
   - loads of USB gadget driver updates and additions
   - new device ids
   - phy driver updates
   - xhci reworks and new features
   - typec updates
 
 Full details are in the shortlog.
 
 All of these have been in linux-next for a long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big set of USB and PHY driver patches for 4.21-rc1.

  All of the usual bits are in here:

  - loads of USB gadget driver updates and additions

  - new device ids

  - phy driver updates

  - xhci reworks and new features

  - typec updates

  Full details are in the shortlog.

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'usb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (142 commits)
  USB: serial: option: add Fibocom NL678 series
  cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
  usb: r8a66597: Fix a possible concurrency use-after-free bug in r8a66597_endpoint_disable()
  usb: typec: tcpm: Extend the matching rules on PPS APDO selection
  usb: typec: Improve Alt Mode documentation
  usb: musb: dsps: fix runtime pm for peripheral mode
  usb: musb: dsps: fix otg state machine
  USB: serial: pl2303: add ids for Hewlett-Packard HP POS pole displays
  usb: renesas_usbhs: add support for RZ/G2E
  usb: ehci-omap: Fix deferred probe for phy handling
  usb: roles: Add a description for the class to Kconfig
  usb: renesas_usbhs: mark PM functions as __maybe_unused
  usb: core: Remove unnecessary memset()
  usb: host: isp1362-hcd: convert to DEFINE_SHOW_ATTRIBUTE
  phy: qcom-qmp: Expose provided clocks to DT
  dt-bindings: phy-qcom-qmp: Move #clock-cells to child
  phy: qcom-qmp: Utilize fully-specified DT registers
  dt-bindings: phy-qcom-qmp: Fix register underspecification
  phy: ti: fix semicolon.cocci warnings
  phy: dphy: Add configuration helpers
  ...
2018-12-28 20:30:00 -08:00
Kangjie Lu 92ee77d148 net: marvell: fix a missing check of acpi_match_device
When acpi_match_device fails, its return value is NULL. Directly using
the return value without a check may result in a NULL-pointer
dereference. The fix checks if acpi_match_device fails, and if so,
returns -EINVAL.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-27 16:26:55 -08:00
Greg Kroah-Hartman cd6a22310e Merge USB 4.20-rc8 mergepoint into usb-next
We need the USB changes in here for additional patches to be able to
apply cleanly.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-21 16:46:08 +01:00
David S. Miller 2be09de7d6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Lots of conflicts, by happily all cases of overlapping
changes, parallel adds, things of that nature.

Thanks to Stephen Rothwell, Saeed Mahameed, and others
for their guidance in these resolutions.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20 11:53:36 -08:00
Antoine Tenart 1b451fb205 net: mvpp2: fix the phylink mode validation
The mvpp2_phylink_validate() sets all modes that are supported by a
given PPv2 port. An mistake made the 10000baseT_Full mode being
advertised in some cases when a port wasn't configured to perform at
10G. This patch fixes this.

Fixes: d97c9f4ab0 ("net: mvpp2: 1000baseX support")
Reported-by: Russell King <linux@armlinux.org.uk>
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-19 16:38:35 -08:00
Antoine Tenart 0067917720 net: mvpp2: 10G modes aren't supported on all ports
The mvpp2_phylink_validate() function sets all modes that are
supported by a given PPv2 port. A recent change made all ports to
advertise they support 10G modes in certain cases. This is not true,
as only the port #0 can do so. This patch fixes it.

Fixes: 01b3fd5ac9 ("net: mvpp2: fix detection of 10G SFP modules")
Cc: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-18 14:48:15 -08:00
Marcin Wojtas e735fd55b9 net: mvneta: fix operation for 64K PAGE_SIZE
Recent changes in the mvneta driver reworked allocation
and handling of the ingress buffers to use entire pages.
Apart from that in SW BM scenario the HW must be informed
via PRXDQS about the biggest possible incoming buffer
that can be propagated by RX descriptors.

The BufferSize field was filled according to the MTU-dependent
pkt_size value. Later change to PAGE_SIZE broke RX operation
when usin 64K pages, as the field is simply too small.

This patch conditionally limits the value passed to the BufferSize
of the PRXDQS register, depending on the PAGE_SIZE used.
On the occasion remove now unused frag_size field of the mvneta_port
structure.

Fixes: 562e2f467e ("net: mvneta: Improve the buffer allocation method for SWBM")
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-16 12:39:59 -08:00
Greg Kroah-Hartman ed0a773bff phy: for 4.21
*) Change phy set_mode ops to take both mode and setmode as arguments
  *) Add phy_configure() and phy_validate() API's mostly used for MIPI D-PHY
  *) Add helpers to get default values of parameters define in MIPI D-PHY spec
  *) Add driver for TI's CPSW Port PHY Interface Mode selection
  *) Add driver for Cadence Sierra PHY used with USB and PCIe
  *) Add driver for Freescale i.MX8MQ USB3 PHY
  *) Fixes QMP PHY bindings to allow the clocks provided by the PHY to be
     pointed at in device tree
  *) Fix for using fully specified regions (in device tree) for configuring
     the second lane in dual lane PHYs in QMP PHY
  *) Add support for Allwinner H6 USB2 PHY in phy-sun4i-usb driver
  *) Update phy-rcar-gen3-usb driver to follow the hardware manual
  *) Add support for fine grained power management in mapphone-mdm6600 driver
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-4.21_v1' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next

Kishon writes:

phy: for 4.21

 *) Change phy set_mode ops to take both mode and setmode as arguments
 *) Add phy_configure() and phy_validate() API's mostly used for MIPI D-PHY
 *) Add helpers to get default values of parameters define in MIPI D-PHY spec
 *) Add driver for TI's CPSW Port PHY Interface Mode selection
 *) Add driver for Cadence Sierra PHY used with USB and PCIe
 *) Add driver for Freescale i.MX8MQ USB3 PHY
 *) Fixes QMP PHY bindings to allow the clocks provided by the PHY to be
    pointed at in device tree
 *) Fix for using fully specified regions (in device tree) for configuring
    the second lane in dual lane PHYs in QMP PHY
 *) Add support for Allwinner H6 USB2 PHY in phy-sun4i-usb driver
 *) Update phy-rcar-gen3-usb driver to follow the hardware manual
 *) Add support for fine grained power management in mapphone-mdm6600 driver

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

* tag 'phy-for-4.21_v1' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy: (30 commits)
  phy: qcom-qmp: Expose provided clocks to DT
  dt-bindings: phy-qcom-qmp: Move #clock-cells to child
  phy: qcom-qmp: Utilize fully-specified DT registers
  dt-bindings: phy-qcom-qmp: Fix register underspecification
  phy: ti: fix semicolon.cocci warnings
  phy: dphy: Add configuration helpers
  phy: Add MIPI D-PHY configuration options
  phy: Add configuration interface
  phy: Add MIPI D-PHY mode
  phy: add driver for Freescale i.MX8MQ USB3 PHY
  dt-bindings: phy: add binding for Freescale i.MX8MQ USB3 PHY
  phy: Use of_node_name_eq for node name comparisons
  net: ethernet: ti: cpsw: add support for port interface mode selection phy
  dt-bindings: net: ti: cpsw: switch to use phy-gmii-sel phy
  phy: ti: introduce phy-gmii-sel driver
  dt-bindings: phy: add cpsw port interface mode selection phy bindings
  phy: mvebu-cp110-comphy: fix spelling in structure name
  phy: mapphone-mdm6600: Improve phy related runtime PM calls
  phy: renesas: rcar-gen3-usb2: follow the hardware manual procedure
  phy: cadence: Add driver for Sierra PHY
  ...
2018-12-12 09:26:04 +01:00