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Sunil Goutham says:
====================
net: thunderx: Miscellaneous fixes
This patch series fixes couple of issues w.r.t multiqset mode
and receive packet statastics.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Counting rx packets for every CQE_RX in CQ irq handler is incorrect.
Synchronization is missing when multiple queues are receiving packets
simultaneously. Like transmit packet stats use HW stats here.
Also removed unused 'cqe_type' parameter in nicvf_rcv_pkt_handler().
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For secondary Qsets 'hw_tso' is not getting set as probe() returns
much earlier. Fixed it by moving silicon revision check.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a interface is assigned morethan 8 queues and the logical interface
is toggled i.e down & up, additional queues or qsets are not initialized
as secondary qset count is being set to zero while tearing down.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
With commit 0071f56e46 ("dsa: Register netdev before phy"), we are now trying
to free a network device that has been previously registered, and in case of
errors, this will make us hit the BUG_ON(dev->reg_state != NETREG_UNREGISTERED)
condition.
Fix this by adding a missing unregister_netdev() before free_netdev().
Fixes: 0071f56e46 ("dsa: Register netdev before phy")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For the Marvell 88E1510, marvell_of_reg_init was called too late, in the
config_aneg function.
Since commit 113c74d83e ("net: phy: turn carrier off on phy attach"),
this lead to the link not coming up at boot anymore, due to the phy
state machine being stuck at waiting for interrupts (off by default on
the 88E1510).
For seven other Marvell PHYs, marvell_of_reg_init was not called at all.
Add a generic marvell_config_init function, which in turn calls
marvell_of_reg_init.
PHYs, which already have a specific config_init function with a call to
marvell_of_reg_init, are left untouched. The generic marvell_config_init
function is called for all the others, to get consistent behavior across
all Marvell PHYs.
Fixes: 113c74d83e ("net: phy: turn carrier off on phy attach")
Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.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>
Drop reference on the relay_po socket when __pppoe_xmit() succeeds.
This is already handled correctly in the error path.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
The example in the DT binding documentation uses the preliminary DT
bindings for the r8a7795 MSTP clocks, which never went upstream.
Update the example to use the DT bindings for the upstream Clock Pulse
Generator / Module Standby and Software Reset hardware block.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko says:
====================
mlxsw fixes
Just a couple of fixes from Ido.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When a VLAN device leaves a bridge its STP state is set to DISABLED,
which causes the hardware to discard any packets coming through the port
with this VLAN.
Fix that by setting STP state to FORWARDING when the device leaves its
bridge and allow traffic to be directed to CPU.
Fixes: 26f0e7fb15 ("mlxsw: spectrum: Add support for VLAN devices bridging")
Reported-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
MLXSW_PORT_MAX_PORTS represents the maximum number of local ports, which
is 65 for both ASICs (SwitchX-2 and Spectrum) supported by this driver.
Fixes: 93c1edb27f ("mlxsw: Introduce Mellanox switch driver core")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A previous commit (33f72e6) added notification via netlink for tunnels
when created/modified/deleted. If the notification returned an error,
this error was returned from the tunnel function. If there were no
listeners, the error code ESRCH was returned, even though having no
listeners is not an error. Other calls to this and other similar
notification functions either ignore the error code, or filter ESRCH.
This patch checks for ESRCH and does not flag this as an error.
Reviewed-by: Hamish Martin <hamish.martin@alliedtelesis.co.nz>
Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
The cpsw-phy-sel driver supports only MII, RMII, and RGMII PHY modes,
and silently handled any other values as if MII was specified. In a
case where the PHY mode was incorrectly specified, or a bug elsewhere,
there would be no indication of a problem. If MII was the correct mode,
then this will go unnoticed, otherwise the symptom will be a failure
to transmit/receive data over the RMII/RGMII link.
Add a dev_warn() to make this condition obvious and provide a
breadcrumb to follow.
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
genphy_config_init() masked out pause flags set in phy driver structure.
Pause flags needs to be preserved in phydev->supported &
phydev->advertising.
Signed-off-by: Woojung Huh <woojung.huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz says:
====================
Mellanox 10/40G mlx4 driver fixes for 4.5-rc
Bunch of fixes from the team to the mlx4 Eth and core drivers.
Series generated against net commit aac8d3c "qmi_wwan: add "4G LTE usb-modem U901""
Please push patches 1,2 and 6 to -stable as well
changes from v0:
- handled another wrongly accounted HW counter in patch #1 (Rick)
- fixed coding style issues in patch #4 (Sergei)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
It's forbidden to manually change dev->features in run-time. Currently, this is
done in the driver to make sure that GSO_UDP_TUNNEL is advertized only when
VXLAN tunnel is set. However, since the stack actually does features intersection
with hw_enc_features, we can safely revert to advertizing features early when
registering the netdevice.
Fixes: f4a1edd561 ('net/mlx4_en: Advertize encapsulation offloads [...]')
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
problem description:
The current code sets UAR page size equal to system page size.
The ConnectX-3 and ConnectX-3 Pro HWs require minimum 128 UAR pages.
The mlx4 kernel drivers are not loaded if there is less than 128 UAR pages.
solution:
Always set UAR page to 4KB. This allows more UAR pages if the OS
has PAGE_SIZE larger than 4KB. For example, PowerPC kernel use 64KB
system page size, with 4MB uar region, there are 4MB/2/64KB = 32
uars (half for uar, half for blueflame). This does not meet minimum 128
UAR pages requirement. With 4KB UAR page, there are 4MB/2/4KB = 512 uars
which meet the minimum requirement.
Note that only codes in mlx4_core that deal with firmware know that uar
page size is 4KB. Codes that deal with usr page in cq and qp context
(mlx4_ib, mlx4_en and part of mlx4_core) still have the same assumption
that uar page size equals to system page size.
Note that with this implementation, on 64KB system page size kernel, there
are 16 uars per system page but only one uars is used. The other 15
uars are ignored because of the above assumption.
Regarding SR-IOV, mlx4_core in hypervisor will set the uar page size
to 4KB and mlx4_core code in virtual OS will obtain the uar page size from
firmware.
Regarding backward compatibility in SR-IOV, if hypervisor has this new code,
the virtual OS must be updated. If hypervisor has old code, and the virtual
OS has this new code, the new code will be backward compatible with the
old code. If the uar size is big enough, this new code in VF continues to
work with 64 KB uar page size (on PowerPc kernel). If the uar size does not
meet 128 uars requirement, this new code not loaded in VF and print the same
error message as the old code in Hypervisor.
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The PCI channel could go offline during reset due to EEH. Don't bug on in
this case, the error is recoverable.
Fixes: f6bc11e426 ('net/mlx4_core: Enhance the catas flow to support device reset')
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The error flow in procedure handle_existing_counter() is wrong.
The procedure should exit after encountering the error, not continue
as if everything is OK.
Fixes: 68230242cd ('net/mlx4_core: Add port attribute when tracking counters')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously, the shift value used for time-stamping was constant and didn't
depend on the HW chip frequency. Change that to take the frequency into account
and calculate the maximal value in cycles per wraparound of ten seconds. This
time slot was chosen since it gives a good accuracy in time synchronization.
Algorithm for shift value calculation:
* Round up the maximal value in cycles to nearest power of two
* Calculate maximal multiplier by division of all 64 bits set
to above result
* Then, invert the function clocksource_khz2mult() to get the shift from
maximal mult value
Fixes: ec693d4701 ('net/mlx4_en: Add HW timestamping (TS) support')
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
RdropOvflw counts overrun of HW buffer, therefore should
be used for rx_fifo_errors only.
Currently RdropOvflw counter is mistakenly also set into
rx_missed_errors and rx_over_errors too, which makes the
device total dropped packets accounting to show wrong results.
Fix that. Use it for rx_fifo_errors only.
Fixes: c27a02cd94 ('mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC')
Signed-off-by: Amir Vadai <amir@vadai.me>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If tcp_v4_inbound_md5_hash() returns an error, we must release
the refcount on the request socket, not on the listener.
The bug was added for IPv4 only.
Fixes: 079096f103 ("tcp/dccp: install syn_recv requests into ehash table")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are some cases where rtt_us derives from deltas of jiffies,
instead of using usec timestamps.
Since we want to track minimal rtt, better to assume a delta of 0 jiffie
might be in fact be very close to 1 jiffie.
It is kind of sad jiffies_to_usecs(1) calls a function instead of simply
using a constant.
Fixes: f672258391 ("tcp: track min RTT using windowed min-filter")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The phy has not been initialized, disconnecting it in the error
path results in a NULL pointer exception. Drop the phy_disconnect
from the error path.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Marvell 88E6240 has been tested successfully without further
changes. Add entry to the table of supported devices.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit 5266698661 ("tipc: let broadcast packet reception
use new link receive function") we introduced a new per-node
broadcast reception link instance. This link is created at the
moment the node itself is created. Unfortunately, the allocation
is done after the node instance has already been added to the node
lookup hash table. This creates a potential race condition, where
arriving broadcast packets are able to find and access the node
before it has been fully initialized, and before the above mentioned
link has been created. The result is occasional crashes in the function
tipc_bcast_rcv(), which is trying to access the not-yet existing link.
We fix this by deferring the addition of the node instance until after
it has been fully initialized in the function tipc_node_create().
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan says:
====================
bnxt_en: Bug fixes.
Fixed autoneg logic and some related cleanups, fixed tx push operation,
and reduced default ring sizes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The current default tx ring size of 512 causes an extra page to be
allocated for the tx ring with only 1 entry in it. Reduce it to
511. The default rx ring size is also reduced to 511 to use less
memory by default.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tx push is supported for small packets to reduce DMA latency. The
following bugs are fixed in this patch:
1. Fix the definition of the push BD which is different from the DMA BD.
2. The push buffer has to be zero padded to the next 64-bit word boundary
or tx checksum won't be correct.
3. Increase the tx push packet threshold to 164 bytes (192 bytes with the BD)
so that small tunneled packets are within the threshold.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20G is not supported by production hardware and only the 40GbaseCR4 standard
is supported.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cleanup bnxt_probe_phy() to cleanly separate 2 code blocks for autoneg
on and off. Autoneg flow control is possible only if autoneg is enabled.
In bnxt_get_settings(), Pause and Asym_Pause are always supported.
Only the advertisement bits change depending on the ethtool -A setting
in auto mode.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1. Determine autoneg on|off setting from link_info->autoneg. Using the
firmware returned setting can be misleading if autoneg is changed and
there hasn't been a phy update from the firmware.
2. If autoneg is disabled, link_info->autoneg should be set to 0 to
indicate both speed and flow control autoneg are disabled.
3. To enable autoneg flow control, speed autoneg must be enabled.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A recent change to the mdb code confused the compiler to the point
where it did not realize that the port-group returned from
br_mdb_add_group() is always valid when the function returns a nonzero
return value, so we get a spurious warning:
net/bridge/br_mdb.c: In function 'br_mdb_add':
net/bridge/br_mdb.c:542:4: error: 'pg' may be used uninitialized in this function [-Werror=maybe-uninitialized]
__br_mdb_notify(dev, entry, RTM_NEWMDB, pg);
Slightly rearranging the code in br_mdb_add_group() makes the problem
go away, as gcc is clever enough to see that both functions check
for 'ret != 0'.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 9e8430f8d6 ("bridge: mdb: Passing the port-group pointer to br_mdb module")
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Kochetkov says:
====================
Fixes for rockchip EMAC
Here is a set of 3 patches what fix koops, memory leak and
rockchip EMAC hang. Tested on radxarock lite.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
EMAC could be disabled, while there is some sb_buff
in use. That buffers got lost for linux.
In order to reproduce run on device during active ethernet work:
ifconfig eth0 down
Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
EMAC reset internal tx ring pointer to zero at statup.
txbd_curr and txbd_dirty can be different from zero.
That cause ethernet transfer hang (no packets transmitted).
In order to reproduce, run on device:
ifconfig eth0 down
ifconfig eth0 up
Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch corrects the unaligned accesses seen on GRE TEB tunnels when
generating hash keys. Specifically what this patch does is make it so that
we force the use of skb_copy_bits when the GRE inner headers will be
unaligned due to NET_IP_ALIGNED being a non-zero value.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Acked-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed says:
====================
mlx5 driver fixes for 4.5-rc2
We added here a patch from Matan and Alaa for addressing Linus comments on
the mess w.r.t reserved field names in the driver/firmware auto-generated file.
Once the patch hits linus tree, we'll ask Doug to rebase his tree on that
rc so both net-next and rdma-next development for 4.6 will be done under
the fixed robust form.
Also provided two patches that addresses the dynamic ndo initialization
issue of mlx5e netdevice.
Or and Saeed.
changes from V1: (Only first patch was changed)
In this V we fixed the issues addressed in Or's previous e-mail.
1. Offsets took into account two dimensional u8 arrays
2. Offsets took into account nesting unions and structs
3. Offsets for unions
4. Offsets for any reserved field
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently our netdevice ops is a one static global variable which
is referenced by all mlx5e netdevice instances. This can be
problematic when different driver instances do not share same
HW capabilities (e.g SRIOV PF and VFs probed to the host).
Now we have two constant global netdevice ops variables, one
for basic netdevice ops and the other with extended SRIOV ops,
on netdevice construction we choose the one suitable for
current device capabilities.
Fixes: 66e49dedad ("net/mlx5e: Add support for SR-IOV ndos")
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently mlx5e_select_queue is redundant since num_tc is always 1.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
mlx5_ifc.h is a header file representing the API and ABI between
the driver to the firmware and hardware. This file is used from
both the mlx5_ib and mlx5_core drivers.
Previously, this file used incrementing counter to indicate
reserved fields, for example:
struct mlx5_ifc_odp_per_transport_service_cap_bits {
u8 send[0x1];
u8 receive[0x1];
u8 write[0x1];
u8 read[0x1];
u8 reserved_0[0x1];
u8 srq_receive[0x1];
u8 reserved_1[0x1a];
};
If one developer implements through net-next feature A that uses
reserved_0, they replace it with featureA and renames reserved_1 to
reserved_0. In the same kernel cycle, a 2nd developer could implement
feature B through the rdma tree, that uses reserved_1 and split it to
featureB and a smaller reserved_1 field. This will cause a conflict
when the two trees are merged.
The source of this conflict is that the 1st developer changed *all*
reserved fields.
As Linus suggested, we change the layout of structs to:
struct mlx5_ifc_odp_per_transport_service_cap_bits {
u8 send[0x1];
u8 receive[0x1];
u8 write[0x1];
u8 read[0x1];
u8 reserved_at_4[0x1];
u8 srq_receive[0x1];
u8 reserved_at_6[0x1a];
};
This makes the conflicts much more rare and preserves the locality of
changes.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Alaa Hleihel <alaa@mellanox.com>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is presently a race condition between the bonding periodic
link monitor and the updating of a slave's speed and duplex. The former
occurs on a periodic basis, and the latter in response to a driver's
calling of netif_carrier_on.
It is possible for the periodic monitor to run between the
driver call of netif_carrier_on and the receipt of the NETDEV_CHANGE
event that causes bonding to update the slave's speed and duplex. This
manifests most notably as a report that a slave is up and "0 Mbps full
duplex" after enslavement, but in principle could report an incorrect
speed and duplex after any link up event if the device comes up with a
different speed or duplex. This affects the 802.3ad aggregator
selection, as the speed and duplex are selection criteria.
This is fixed by updating the speed and duplex in the periodic
monitor, prior to using that information.
This was done historically in bonding, but the call to
bond_update_speed_duplex was removed in commit 876254ae27 ("bonding:
don't call update_speed_duplex() under spinlocks"), as it might sleep
under lock. Later, the locking was changed to only hold RTNL, and so
after commit 876254ae27 ("bonding: don't call update_speed_duplex()
under spinlocks") this call is again safe.
Tested-by: "Tantilov, Emil S" <emil.s.tantilov@intel.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: dingtianhong <dingtianhong@huawei.com>
Fixes: 876254ae27 ("bonding: don't call update_speed_duplex() under spinlocks")
Signed-off-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Acked-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The am79c961a.c driver fails to build with clang because of an
unusual inline assembly construct:
drivers/net/ethernet/amd/am79c961a.c:53:7: error: invalid % escape in inline assembly string
"str%?h %1, [%2] @ NET_RAP\n\t"
The same change has been done a decade ago in arch/arm as of
6a39dd6222 ("[ARM] 3759/2: Remove uses of %?"), but apparently
some drivers were missed.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
The smc91x driver doesn't honor the probe deferral mechanism when the
interrupt source is not yet available, such as one provided by a gpio
controller not probed.
Fix this by propagating the platform_get_irq() error code as the probe
return value.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
Subject: [PATCH net v2 0/4] net: phy: bcm7xxx 40nm PHY fixes
Here is a collection of fixes for the 40nm Ethernet PHY supported
by the 7xxx PHY driver, please also queue these fixes for stable.
Changes in v2:
- dropped the cleanup patch, not appropriate
- added another patch removing bogus wildcard entries
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
