The IPA driver depends on some SMEM functionality (qcom_smem_init(),
qcom_smem_alloc(), and qcom_smem_virt_to_phys()), but this is not
reflected in the configuration dependencies. Add a dependency on
QCOM_SMEM to avoid attempts to build the IPA driver without SMEM.
This avoids a link error for certain configurations.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 38a4066f59 ("net: ipa: support COMPILE_TEST")
Signed-off-by: Alex Elder <elder@linaro.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210112192134.493-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add debugfs support to SFP so that the internal state of the SFP state
machines and hardware signal state can be viewed from userspace, rather
than having to compile a debug kernel to view state transitions in the
kernel log. The 'state' output looks like:
Module state: empty
Module probe attempts: 0 0
Device state: up
Main state: down
Fault recovery remaining retries: 5
PHY probe remaining retries: 12
moddef0: 0
rx_los: 1
tx_fault: 1
tx_disable: 1
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/E1kyYRe-0004kN-3F@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
On VF hot remove, NETDEV_GOING_DOWN is sent to notify the VF is about to
go down. At this time, the VF is still sending/receiving traffic and we
request the VSP to switch datapath.
On completion, the datapath is switched to synthetic and we can proceed
with VF hot remove.
Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The completion indicates if NVSP_MSG4_TYPE_SWITCH_DATA_PATH has been
processed by the VSP. The traffic is steered to VF or synthetic after we
receive this completion.
Signed-off-by: Long Li <longli@microsoft.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The driver needs to check if the datapath has been switched to VF before
sending traffic to VF.
Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Instead of doing the full DASH check each time r8168_check_dash() is
called, let's do it once in probe and store DASH capabilities in a
new rtl8169_private member.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Extend the mask to include the checksum failure bits. This allows to
simplify the condition in rtl8169_rx_csum().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
At least from chip version 25 the vendor driver sets these rx flags
for all chip versions if WOL is enabled. Therefore I wouldn't consider
it a quirk, so let's rename the function.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Patch didn't fix any issue, just improve parse flow
and align ipv4 parse flow with ipv6 parse flow.
Currently ipv4 kenguru parser first check IP protocol(TCP/UDP)
and then destination IP address.
Patch introduce reverse ipv4 parse, first destination IP address parsed
and only then IP protocol.
This would allow extend capability for packet L4 parsing and align ipv4
parsing flow with ipv6.
Suggested-by: Liron Himi <liron@marvell.com>
Signed-off-by: Stefan Chulski <stefanc@marvell.com>
Link: https://lore.kernel.org/r/1610289059-14962-1-git-send-email-stefanc@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Clean up the remainings of rtl_pll_power_down/up and rename
rtl_pll_power_down() to rtl_prepare_power_down().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Realtek provided a description of bits 6 and 7 in register PMCH.
They configure whether the chip powers down certain PLL in D3hot and
D3cold respectively. They do not actually power down the PLL.
Reflect this in the code and configure D3 PLL powerdown based on
whether WOL is enabled.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There's no known reason why PLL powerdown on D3 shouldn't be enabled
on chip versions 34, 35, 36, and 42. At least the vendor driver doesn't
exclude any of these chip versions.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
So far we don't increase the max read request size if we switch to
jumbo mode before bringing up the interface for the first time.
Let's change this.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Align behavior with r8168 vendor driver and don't reduce max read
request size for RTL8168e in jumbo mode.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The SFP MSA defines two option bits in byte 65 to indicate how the
Rx_LOS signal on SFP pin 8 behaves:
bit 2 - Loss of Signal implemented, signal inverted from standard
definition in SFP MSA (often called "Signal Detect").
bit 1 - Loss of Signal implemented, signal as defined in SFP MSA
(often called "Rx_LOS").
Clearly, setting both bits results in a meaningless situation: it would
mean that LOS is implemented in both the normal sense (1 = signal loss)
and inverted sense (0 = signal loss).
Unfortunately, there are modules out there which set both bits, which
will be initially interpret as "inverted" sense, and then, if the LOS
signal changes state, we will toggle between LINK_UP and WAIT_LOS
states.
Change our LOS handling to give well defined behaviour: only interpret
these bits as meaningful if exactly one is set, otherwise treat it as
if LOS is not implemented.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/E1kyYQa-0004iR-CU@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The code that sets the DMA mask to 64 bits is bogus, it is taken from
the enetc driver together with the rest of the PCI probing boilerplate.
Since this patch is touching the error path to delete err_dma, let's
also change the err_alloc_felix label which was incorrect. The kzalloc
failure does not need a kfree, but it doesn't hurt either, since kfree
works with NULL pointers.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210109203415.2120142-1-olteanv@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As of commit 457e20d659 ("mlxsw: spectrum_switchdev: Avoid returning
errors in commit phase"), the mlxsw driver performs the VLAN object
offloading during the prepare phase. So conversion just seems to be a
matter of removing the code that was running in the commit phase.
Ido Schimmel explains that the reason why mlxsw_sp_span_respin is called
unconditionally is because the bridge driver will ignore -EOPNOTSUPP and
actually add the VLAN on the bridge device - see commit 9c86ce2c1a
("net: bridge: Notify about bridge VLANs") and commit ea47217519
("mlxsw: spectrum_switchdev: Ignore bridge VLAN events"). Since the VLAN
was successfully added on the bridge device, mlxsw_sp_span_respin_work()
should be able to resolve the egress port for a packet that is mirrored
to a gre tap and passes through the bridge device. Therefore keep the
logic as it is.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It should be the driver's business to logically separate its VLAN
offloading into a preparation and a commit phase, and some drivers don't
need / can't do this.
So remove the transactional shim from DSA and let drivers propagate
errors directly from the .port_vlan_add callback.
It would appear that the code has worse error handling now than it had
before. DSA is the only in-kernel user of switchdev that offloads one
switchdev object to more than one port: for every VLAN object offloaded
to a user port, that VLAN is also offloaded to the CPU port. So the
"prepare for user port -> check for errors -> prepare for CPU port ->
check for errors -> commit for user port -> commit for CPU port"
sequence appears to make more sense than the one we are using now:
"offload to user port -> check for errors -> offload to CPU port ->
check for errors", but it is really a compromise. In the new way, we can
catch errors from the commit phase that we previously had to ignore.
But we have our hands tied and cannot do any rollback now: if we add a
VLAN on the CPU port and it fails, we can't do the rollback by simply
deleting it from the user port, because the switchdev API is not so nice
with us: it could have simply been there already, even with the same
flags. So we don't even attempt to rollback anything on addition error,
just leave whatever VLANs managed to get offloaded right where they are.
This should not be a problem at all in practice.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For many drivers, the .port_mdb_prepare callback was not a good opportunity
to avoid any error condition, and they would suppress errors found during
the actual commit phase.
Where a logical separation between the prepare and the commit phase
existed, the function that used to implement the .port_mdb_prepare
callback still exists, but now it is called directly from .port_mdb_add,
which was modified to return an int code.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de> # hellcreek
Reviewed-by: Linus Wallei <linus.walleij@linaro.org> # RTL8366
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since the introduction of the switchdev API, port attributes were
transmitted to drivers for offloading using a two-step transactional
model, with a prepare phase that was supposed to catch all errors, and a
commit phase that was supposed to never fail.
Some classes of failures can never be avoided, like hardware access, or
memory allocation. In the latter case, merely attempting to move the
memory allocation to the preparation phase makes it impossible to avoid
memory leaks, since commit 91cf8eceff ("switchdev: Remove unused
transaction item queue") which has removed the unused mechanism of
passing on the allocated memory between one phase and another.
It is time we admit that separating the preparation from the commit
phase is something that is best left for the driver to decide, and not
something that should be baked into the API, especially since there are
no switchdev callers that depend on this.
This patch removes the struct switchdev_trans member from switchdev port
attribute notifier structures, and converts drivers to not look at this
member.
In part, this patch contains a revert of my previous commit 2e554a7a5d
("net: dsa: propagate switchdev vlan_filtering prepare phase to
drivers").
For the most part, the conversion was trivial except for:
- Rocker's world implementation based on Broadcom OF-DPA had an odd
implementation of ofdpa_port_attr_bridge_flags_set. The conversion was
done mechanically, by pasting the implementation twice, then only
keeping the code that would get executed during prepare phase on top,
then only keeping the code that gets executed during the commit phase
on bottom, then simplifying the resulting code until this was obtained.
- DSA's offloading of STP state, bridge flags, VLAN filtering and
multicast router could be converted right away. But the ageing time
could not, so a shim was introduced and this was left for a further
commit.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de> # hellcreek
Reviewed-by: Linus Walleij <linus.walleij@linaro.org> # RTL8366RB
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since the introduction of the switchdev API, port objects were
transmitted to drivers for offloading using a two-step transactional
model, with a prepare phase that was supposed to catch all errors, and a
commit phase that was supposed to never fail.
Some classes of failures can never be avoided, like hardware access, or
memory allocation. In the latter case, merely attempting to move the
memory allocation to the preparation phase makes it impossible to avoid
memory leaks, since commit 91cf8eceff ("switchdev: Remove unused
transaction item queue") which has removed the unused mechanism of
passing on the allocated memory between one phase and another.
It is time we admit that separating the preparation from the commit
phase is something that is best left for the driver to decide, and not
something that should be baked into the API, especially since there are
no switchdev callers that depend on this.
This patch removes the struct switchdev_trans member from switchdev port
object notifier structures, and converts drivers to not look at this
member.
Where driver conversion is trivial (like in the case of the Marvell
Prestera driver, NXP DPAA2 switch, TI CPSW, and Rocker drivers), it is
done in this patch.
Where driver conversion needs more attention (DSA, Mellanox Spectrum),
the conversion is left for subsequent patches and here we only fake the
prepare/commit phases at a lower level, just not in the switchdev
notifier itself.
Where the code has a natural structure that is best left alone as a
preparation and a commit phase (as in the case of the Ocelot switch),
that structure is left in place, just made to not depend upon the
switchdev transactional model.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
mv88e6xxx apparently has a problem offloading VID 0, which the 8021q
module tries to install as part of commit ad1afb0039 ("vlan_dev: VLAN
0 should be treated as "no vlan tag" (802.1p packet)"). That mv88e6xxx
restriction seems to have been introduced by the "VTU GetNext VID-1
trick to retrieve a single entry" - see commit 2fb5ef09de ("net: dsa:
mv88e6xxx: extract single VLAN retrieval").
There is one more problem. The mv88e6xxx CPU port and DSA links do not
report properly in the prepare phase what are the VLANs that they can
offload. They'll say they can offload everything:
mv88e6xxx_port_vlan_prepare
-> mv88e6xxx_port_check_hw_vlan:
/* DSA and CPU ports have to be members of multiple vlans */
if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port))
return 0;
Except that if you actually try to commit to it, they'll error out and
print this message:
[ 32.802438] mv88e6085 d0032004.mdio-mii:12: p9: failed to add VLAN 0t
which comes from:
mv88e6xxx_port_vlan_add
-> mv88e6xxx_port_vlan_join:
if (!vid)
return -EOPNOTSUPP;
What prevents this condition from triggering in real life? The fact that
when a DSA_NOTIFIER_VLAN_ADD is emitted, it never targets a DSA link
directly. Instead, the notifier will always target either a user port or
a CPU port. DSA links just happen to get dragged in by:
static bool dsa_switch_vlan_match(struct dsa_switch *ds, int port,
struct dsa_notifier_vlan_info *info)
{
...
if (dsa_is_dsa_port(ds, port))
return true;
...
}
So for every DSA VLAN notifier, during the prepare phase, it will just
so happen that there will be somebody to say "no, don't do that".
This will become a problem when the switchdev prepare/commit transactional
model goes away. Every port needs to think on its own. DSA links can no
longer bluff and rely on the fact that the prepare phase will not go
through to the end, because there will be no prepare phase any longer.
Fix this issue before it becomes a problem, by having the "vid == 0"
check earlier than the check whether we are a CPU port / DSA link or not.
Also, the "vid == 0" check becomes unnecessary in the .port_vlan_add
callback, so we can remove it.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The call path of a switchdev VLAN addition to the bridge looks something
like this today:
nbp_vlan_init
| __br_vlan_set_default_pvid
| | |
| | br_afspec |
| | | |
| | v |
| | br_process_vlan_info |
| | | |
| | v |
| | br_vlan_info |
| | / \ /
| | / \ /
| | / \ /
| | / \ /
v v v v v
nbp_vlan_add br_vlan_add ------+
| ^ ^ | |
| / | | |
| / / / |
\ br_vlan_get_master/ / v
\ ^ / / br_vlan_add_existing
\ | / / |
\ | / / /
\ | / / /
\ | / / /
\ | / / /
v | | v /
__vlan_add /
/ | /
/ | /
v | /
__vlan_vid_add | /
\ | /
v v v
br_switchdev_port_vlan_add
The ranges UAPI was introduced to the bridge in commit bdced7ef78
("bridge: support for multiple vlans and vlan ranges in setlink and
dellink requests") (Jan 10 2015). But the VLAN ranges (parsed in br_afspec)
have always been passed one by one, through struct bridge_vlan_info
tmp_vinfo, to br_vlan_info. So the range never went too far in depth.
Then Scott Feldman introduced the switchdev_port_bridge_setlink function
in commit 47f8328bb1 ("switchdev: add new switchdev bridge setlink").
That marked the introduction of the SWITCHDEV_OBJ_PORT_VLAN, which made
full use of the range. But switchdev_port_bridge_setlink was called like
this:
br_setlink
-> br_afspec
-> switchdev_port_bridge_setlink
Basically, the switchdev and the bridge code were not tightly integrated.
Then commit 41c498b935 ("bridge: restore br_setlink back to original")
came, and switchdev drivers were required to implement
.ndo_bridge_setlink = switchdev_port_bridge_setlink for a while.
In the meantime, commits such as 0944d6b5a2 ("bridge: try switchdev op
first in __vlan_vid_add/del") finally made switchdev penetrate the
br_vlan_info() barrier and start to develop the call path we have today.
But remember, br_vlan_info() still receives VLANs one by one.
Then Arkadi Sharshevsky refactored the switchdev API in 2017 in commit
29ab586c3d ("net: switchdev: Remove bridge bypass support from
switchdev") so that drivers would not implement .ndo_bridge_setlink any
longer. The switchdev_port_bridge_setlink also got deleted.
This refactoring removed the parallel bridge_setlink implementation from
switchdev, and left the only switchdev VLAN objects to be the ones
offloaded from __vlan_vid_add (basically RX filtering) and __vlan_add
(the latter coming from commit 9c86ce2c1a ("net: bridge: Notify about
bridge VLANs")).
That is to say, today the switchdev VLAN object ranges are not used in
the kernel. Refactoring the above call path is a bit complicated, when
the bridge VLAN call path is already a bit complicated.
Let's go off and finish the job of commit 29ab586c3d by deleting the
bogus iteration through the VLAN ranges from the drivers. Some aspects
of this feature never made too much sense in the first place. For
example, what is a range of VLANs all having the BRIDGE_VLAN_INFO_PVID
flag supposed to mean, when a port can obviously have a single pvid?
This particular configuration _is_ denied as of commit 6623c60dc2
("bridge: vlan: enforce no pvid flag in vlan ranges"), but from an API
perspective, the driver still has to play pretend, and only offload the
vlan->vid_end as pvid. And the addition of a switchdev VLAN object can
modify the flags of another, completely unrelated, switchdev VLAN
object! (a VLAN that is PVID will invalidate the PVID flag from whatever
other VLAN had previously been offloaded with switchdev and had that
flag. Yet switchdev never notifies about that change, drivers are
supposed to guess).
Nonetheless, having a VLAN range in the API makes error handling look
scarier than it really is - unwinding on errors and all of that.
When in reality, no one really calls this API with more than one VLAN.
It is all unnecessary complexity.
And despite appearing pretentious (two-phase transactional model and
all), the switchdev API is really sloppy because the VLAN addition and
removal operations are not paired with one another (you can add a VLAN
100 times and delete it just once). The bridge notifies through
switchdev of a VLAN addition not only when the flags of an existing VLAN
change, but also when nothing changes. There are switchdev drivers out
there who don't like adding a VLAN that has already been added, and
those checks don't really belong at driver level. But the fact that the
API contains ranges is yet another factor that prevents this from being
addressed in the future.
Of the existing switchdev pieces of hardware, it appears that only
Mellanox Spectrum supports offloading more than one VLAN at a time,
through mlxsw_sp_port_vlan_set. I have kept that code internal to the
driver, because there is some more bookkeeping that makes use of it, but
I deleted it from the switchdev API. But since the switchdev support for
ranges has already been de facto deleted by a Mellanox employee and
nobody noticed for 4 years, I'm going to assume it's not a biggie.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com> # switchdev and mlxsw
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de> # hellcreek
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
RTL8168dp is ancient anyway, and I haven't seen any trace of its early
version 27 yet. This chip versions needs quite some special handling,
therefore it would facilitate driver maintenance if support for it
could be dropped. For now just disable detection of this chip version.
If nobody complains we can remove support for it in the near future.
v2:
- extend unknown chip version error message
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/ca98f018-a0e1-8762-e95c-f0ad773a0271@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If WOL isn't enabled, then there's no need to enable wakeup from D3
on system shutdown.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use WARN_ONCE here to get a call trace in case of a problem.
This facilitates finding the offending code part.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use WARN here to avoid stopping the system. In addition print the addr
and mask values that triggered the warning.
v2:
- return on WARN to avoid an invalid register write
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The MC firmware takes these PAUSE/ASYM_PAUSE flags provided by the
driver, transforms them back into rx/tx pause enablement status and
applies them to hardware. We are not losing information by this
transformation, thus remove the comment.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The dpaa2-eth driver has phylink integration only if the connected dpmac
object is in TYPE_PHY (aka the PCS/PHY etc link status is managed by
Linux instead of the firmware). The check is thus unnecessary because
the code path that reaches the .mac_link_up() callback is only with
TYPE_PHY dpmac objects.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The fsl_mc_get_endpoint() function now returns -EPROBE_DEFER when the
dpmac device was not yet discovered by the fsl-mc bus. When this
happens, pass the error code up so that we can retry the probe at a
later time.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If the network interface object is connected to a MAC of TYPE_FIXED, the
link status management is handled exclusively by the firmware. This does
not mean that the driver cannot access the MAC counters and export them
in ethtool.
For this to happen, we open the attached dpmac device and keep a pointer
to it in priv->mac. Because of this, all the checks in the driver of the
following form 'if (priv->mac)' have to be updated to actually check
the dpmac attribute and not rely on the presence of a non-NULL value.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Split up the initialization phase of the dpmac object from actually
configuring the phylink instance, connecting to it and configuring the
MAC. This is done so that even though the dpni object is connected to a
dpmac which has link management handled by the firmware we are still
able to export the MAC counters.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
napi_gro_receive() can never return GRO_DROP
GRO_DROP can only be returned from napi_gro_frags()
which is the other NAPI GRO entry point.
Followup patch will remove GRO_DROP, because drivers
are not supposed to call napi_gro_frags() if prior
napi_get_frags() has failed.
Note that I have left the gro_dropped variable. I leave to ice
maintainers the decision to further remove it from ethtool -S results.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Arrange for the IPA driver to be built when COMPILE_TEST is enabled.
Update the help text to reflect that we support two Qualcomm SoCs.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The second argument to gsi_trans_page_add() is a page pointer.
That declaration is found in header files used by "gsi_trans.h" for
(at least) arm64 and x86 builds, but apparently not for alpha
builds.
Fix this by adding a declaration of struct page to the top of
"gsi_trans.h".
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit b27507bb59 ("net/ibmvnic: unlock rtnl_lock in reset so
linkwatch_event can run") introduced do_change_param_reset function to
solve the rtnl lock issue. Majority of the code in do_change_param_reset
duplicates do_reset. Also, we can handle the rtnl lock issue in do_reset
itself. Hence merge do_change_param_reset back into do_reset to clean up
the code.
Signed-off-by: Lijun Pan <ljp@linux.ibm.com>
Link: https://lore.kernel.org/r/20210106213514.76027-1-ljp@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
sparse complains about some harmless endianness issues:
> drivers/net/ppp/pptp.c:281:21: warning: incorrect type in assignment (different base types)
> drivers/net/ppp/pptp.c:281:21: expected unsigned int [usertype] ack
> drivers/net/ppp/pptp.c:281:21: got restricted __be32
> drivers/net/ppp/pptp.c:283:23: warning: cast to restricted __be32
Here 'ack' is assigned a value in network-order, and then also the
byte-swapped value in host-order. Clean this up by doing the byte-swap
as part of the assignment.
> drivers/net/ppp/pptp.c:358:26: warning: cast from restricted __be16
> drivers/net/ppp/pptp.c:358:26: warning: incorrect type in argument 1 (different base types)
> drivers/net/ppp/pptp.c:358:26: expected unsigned short [usertype] call_id
> drivers/net/ppp/pptp.c:358:26: got restricted __be16 [usertype]
Here we use the wrong flavour of byte-swap. Use ntohs(), which of course
gives the same result.
Cc: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Link: https://lore.kernel.org/r/20210107143956.25549-1-jwi@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The "undocumented" annotations in the EtherAVB driver were done against
the R-Car gen2 manuals; most of these registers/bits were then described
in the R-Car gen3 manuals -- reflect this fact in the annotations (note
that ECSIPR.LCHNGIP was documented in the recent R-Car gen2 manual)...
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
