linux-toradex.git/drivers/net, branch v5.5-rc7

cxgb4: reject overlapped queues in TC-MQPRIO offload

2020-01-19T15:12:53+00:00

A queue can't belong to multiple traffic classes. So, reject
any such configuration that results in overlapped queues for a
traffic class.

Fixes: b1396c2bd675 ("cxgb4: parse and configure TC-MQPRIO offload")
Signed-off-by: Rahul Lakkireddy 
Signed-off-by: David S. Miller

cxgb4: fix Tx multi channel port rate limit

2020-01-19T15:12:02+00:00

T6 can support 2 egress traffic management channels per port to
double the total number of traffic classes that can be configured.
In this configuration, if the class belongs to the other channel,
then all the queues must be bound again explicitly to the new class,
for the rate limit parameters on the other channel to take effect.

So, always explicitly bind all queues to the port rate limit traffic
class, regardless of the traffic management channel that it belongs
to. Also, only bind queues to port rate limit traffic class, if all
the queues don't already belong to an existing different traffic
class.

Fixes: 4ec4762d8ec6 ("cxgb4: add TC-MATCHALL classifier egress offload")
Signed-off-by: Rahul Lakkireddy 
Signed-off-by: David S. Miller

bnxt_en: Do not treat DSN (Digital Serial Number) read failure as fatal.

2020-01-18T13:38:29+00:00

DSN read can fail, for example on a kdump kernel without PCIe extended
config space support.  If DSN read fails, don't set the
BNXT_FLAG_DSN_VALID flag and continue loading.  Check the flag
to see if the stored DSN is valid before using it.  Only VF reps
creation should fail without valid DSN.

Fixes: 03213a996531 ("bnxt: move bp->switch_id initialization to PF probe")
Reported-by: Marc Smith 
Signed-off-by: Michael Chan 
Signed-off-by: David S. Miller

bnxt_en: Fix ipv6 RFS filter matching logic.

2020-01-18T13:38:29+00:00

Fix bnxt_fltr_match() to match ipv6 source and destination addresses.
The function currently only checks ipv4 addresses and will not work
corrently on ipv6 filters.

Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Michael Chan 
Signed-off-by: David S. Miller

bnxt_en: Fix NTUPLE firmware command failures.

2020-01-18T13:38:29+00:00

The NTUPLE related firmware commands are sent to the wrong firmware
channel, causing all these commands to fail on new firmware that
supports the new firmware channel.  Fix it by excluding the 3
NTUPLE firmware commands from the list for the new firmware channel.

Fixes: 760b6d33410c ("bnxt_en: Add support for 2nd firmware message channel.")
Signed-off-by: Michael Chan 
Signed-off-by: David S. Miller

net: systemport: Fixed queue mapping in internal ring map

2020-01-17T12:31:14+00:00

We would not be transmitting using the correct SYSTEMPORT transmit queue
during ndo_select_queue() which looks up the internal TX ring map
because while establishing the mapping we would be off by 4, so for
instance, when we populate switch port mappings we would be doing:

switch port 0, queue 0 -> ring index #0
switch port 0, queue 1 -> ring index #1
...
switch port 0, queue 3 -> ring index #3
switch port 1, queue 0 -> ring index #8 (4 + 4 * 1)
...

instead of using ring index #4. This would cause our ndo_select_queue()
to use the fallback queue mechanism which would pick up an incorrect
ring for that switch port. Fix this by using the correct switch queue
number instead of SYSTEMPORT queue number.

Fixes: 25c440704661 ("net: systemport: Simplify queue mapping logic")
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec

2020-01-17T12:26:27+00:00

With the implementation of the system reset controller we lost a setting
that is currently applied by the bootloader and which configures the IMP
port for 2Gb/sec, the default is 1Gb/sec. This is needed given the
number of ports and applications we expect to run so bring back that
setting.

Fixes: 01b0ac07589e ("net: dsa: bcm_sf2: Add support for optional reset controller line")
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: sja1105: Don't error out on disabled ports with no phy-mode

2020-01-17T12:22:12+00:00

The sja1105_parse_ports_node function was tested only on device trees
where all ports were enabled. Fix this check so that the driver
continues to probe only with the ports where status is not "disabled",
as expected.

Fixes: 8aa9ebccae87 ("net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch")
Signed-off-by: Vladimir Oltean 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: phy: dp83867: Set FORCE_LINK_GOOD to default after reset

2020-01-17T10:36:18+00:00

According to the Datasheet this bit should be 0 (Normal operation) in
default. With the FORCE_LINK_GOOD bit set, it is not possible to get a
link. This patch sets FORCE_LINK_GOOD to the default value after
resetting the phy.

Signed-off-by: Michael Grzeschik 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: hns: fix soft lockup when there is not enough memory

2020-01-17T10:19:12+00:00

When there is not enough memory and napi_alloc_skb() return NULL,
the HNS driver will print error message, and than try again, if
the memory is not enough for a while, huge error message and the
retry operation will cause soft lockup.

When napi_alloc_skb() return NULL because of no memory, we can
get a warn_alloc() call trace, so this patch deletes the error
message. We already use polling mode to handle irq, but the
retry operation will render the polling weight inactive, this
patch just return budget when the rx is not completed to avoid
dead loop.

Fixes: 36eedfde1a36 ("net: hns: Optimize hns_nic_common_poll for better performance")
Fixes: b5996f11ea54 ("net: add Hisilicon Network Subsystem basic ethernet support")
Signed-off-by: Yonglong Liu 
Signed-off-by: David S. Miller