Setting DSA_MAX_PORTS caused DSA to call b53 callbacks (e.g.
b53_disable_port() during dsa_register_switch()) for invalid
(non-existent) ports. That made b53 modify unrelated registers and is
one of reasons for a broken BCM5301x support.

This problem exists for years but DSA_MAX_PORTS usage has changed few
times. It seems the most accurate to reference commit dropping
dsa_switch_alloc() in the Fixes tag.

Fixes: 7e99e347 ("net: dsa: remove dsa_switch_alloc helper")
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

It isn't true that CPU port is always the last one. Switches BCM5301x
have 9 ports (port 6 being inactive) and they use port 5 as CPU by
default (depending on design some other may be CPU ports too).

A more reliable way of determining number of ports is to check for the
last set bit in the "enabled_ports" bitfield.

This fixes b53 internal state, it will allow providing accurate info to
the DSA and is required to fix BCM5301x support.

Fixes: 967dd82f ("net: dsa: b53: Add support for Broadcom RoboSwitch")
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add quirk CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE for Telit LN920
0x1061 composition in order to avoid bind error.
Signed-off-by: NDaniele Palmas <dnlplm@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If the network devices connected to the system beyond
HSO_MAX_NET_DEVICES. add_net_device() in hso_create_net_device()
will be failed for the network_table is full. It will lead to
business failure which rely on network_table, for example,
hso_suspend() and hso_resume(). It will also lead to memory leak
because resource release process can not search the hso_device
object from network_table in hso_free_interface().

Add failure handler for add_net_device() in hso_create_net_device()
to solve the above problems.

Fixes: 72dc1c09 ("HSO: add option hso driver")
Signed-off-by: NZiyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently, outgoing packets larger than 1496 bytes are dropped when
tagged VLAN is used on a switch port.

Add the frame check sequence length to the value of the register
GSWIP_MAC_FLEN to fix this. This matches the lantiq_ppa vendor driver,
which uses a value consisting of 1518 bytes for the MAC frame, plus the
lengths of special tag and VLAN tags.

Fixes: 14fceff4 ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Cc: stable@vger.kernel.org
Signed-off-by: NJan Hoffmann <jan@3e8.eu>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/i825xx/sun3_82586.c: In function ‘sun3_82586_probe’:
drivers/net/ethernet/i825xx/sun3_82586.c:317:9: warning: returning ‘struct net_device *’ from a function with return type ‘int’ makes integer from pointer without a cast [-Wint-conversion]
  317 |  return dev;
      |         ^~~

The return type of sun3_82586_probe() was changed, but one return value
was forgotten to be updated.

Fixes: e179d78e ("m68k: remove legacy probing")
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Parameter names in the comments did not match the function arguments.

Fixes: 21380817 ("bnxt_en: add support for HWRM request slices")
Signed-off-by: NEdwin Peer <edwin.peer@broadcom.com>
Reported-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NMichael Chan <michael.chan@broadcom.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210901185315.57137-1-edwin.peer@broadcom.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

This patch reserves the LMTST lines per cpu instead
of separate LMTST lines for NPA(buffer free) and NIX(sqe flush).
LMTST line of the core on which SQ or RQ is processed is used
for LMTST operation.

This patch also replace STEOR with STEORL release semantics and
updates driver name in ethtool file.
Signed-off-by: NGeetha sowjanya <gakula@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Check one more time before exiting the API with an error.
Fix API to poll at least twice, in case there are other high priority
tasks and this API doesn't get CPU cycles for multiple jiffies update.

In addition, increase timeout from usecs_to_jiffies(10000) to
usecs_to_jiffies(20000), to prevent the case that for CONFIG_100HZ
timeout will be a single jiffies.
A single jiffies results actual timeout that can be any time between
1usec and 10msec. To solve this, a value of usecs_to_jiffies(20000)
ensures that timeout is 2 jiffies.
Signed-off-by: NSmadar Fuks <smadarf@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove repeated include of linux/module.h as it has been included
at line 8.
Signed-off-by: NWan Jiabing <wanjiabing@vivo.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The driver requires 64-bit doorbell writes to be atomic on 32-bit
architectures.  So we redefined writeq as a new macro with spinlock
protection on 32-bit architectures.  This created a new warning when
we added a new file in a recent patchset.  writeq is defined on many
32-bit architectures to do the memory write non-atomically and it
generated a new macro redefined warning.  This warning was fixed
incorrectly in the recent patch.

Fix this properly by adding a new bnxt_writeq() function that will
do the non-atomic write under spinlock on 32-bit systems.  All callers
in the driver will now call bnxt_writeq() instead.

v2: Need to pass in bp to bnxt_writeq()
    Use lo_hi_writeq() [suggested by Florian]
Reported-by: Nkernel test robot <lkp@intel.com>
Fixes: f9ff5782 ("bnxt_en: introduce new firmware message API based on DMA pools")
Reviewed-by: NEdwin Peer <edwin.peer@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Current settings may produce a build error when
CONFIG_OF_NET is disabled. The CONFIG_OF_NET controls
a headfile <linux/of.h> and some functions
 in <linux/of_net.h>.
Signed-off-by: NSlark Xiao <slark_xiao@163.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch removes some unnecessary spaces for cleanup.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add some required spaces to improve readability.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

abs() returns signed long, which could not convert the type
as unsigned, and it may cause a mismatch type warning from
static tools. To fix it, this patch uses an variable to save
the abs()'s result and does a explicit conversion.
Signed-off-by: NGuojia Liao <liaoguojia@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently, the driver sets default feature for netdev->features,
netdev->hw_features, netdev->vlan_features and
netdev->hw_enc_features separately. It's fussy, because most
of the feature bits are same. So refine it by copy value from
netdev->features.
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: NCai Huoqing <caihuoqing@baidu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: NCai Huoqing <caihuoqing@baidu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: NCai Huoqing <caihuoqing@baidu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

With current config, for packets with IPv4 checksum errors,
errorcode is being set to UNKNOWN. Hence added a separate
errorcodes for outer and inner IPv4 checksum and changed
NPC configuration accordingly.

Also turn on L2 multicast address check in NPC protocol check block.

Fixes: 6b3321ba ("octeontx2-af: Enable packet length and csum validation")
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch fixes the static code analyzer reported issues
in rvu_npc.c. The reported errors are different sizes of
operands in bitops and returning uninitialized values.

Fixes: 651cd265 ("octeontx2-af: MCAM entry installation support")
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In npc_update_vf_flow_entry function the loop cursor
'index' is being changed inside the loop causing
the loop to spin forever. This in turn hogs the kworker
thread forever and no other mbox message is processed
by AF driver after that. Fix this by using
another variable in the loop.

Fixes: 55307fcb ("octeontx2-af: Add mbox messages to install and delete MCAM rules")
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When the given counter does not belong to the entry
then code ends up in infinite loop because the loop
cursor, entry is not getting updated further. This
patch fixes that by updating entry for every iteration.

Fixes: a958dd59 ("octeontx2-af: Map or unmap NPC MCAM entry and counter")
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The strlcpy should not be used because it doesn't limit the source
length. As linus says, it's a completely useless function if you
can't implicitly trust the source string - but that is almost always
why people think they should use it! All in all the BSD function
will lead some potential bugs.

But the strscpy doesn't require reading memory from the src string
beyond the specified "count" bytes, and since the return value is
easier to error-check than strlcpy()'s. In addition, the implementation
is robust to the string changing out from underneath it, unlike the
current strlcpy() implementation.

Thus, We prefer using strscpy instead of strlcpy.
Signed-off-by: NJason Wang <wangborong@cdjrlc.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For better performance set hardware to use NDC TX for reading packet
data specified NIX_SEND_SG_S.
Signed-off-by: NGeetha sowjanya <gakula@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Based on tests the QCA7000 doesn't support checksum offloading. So assume
ip_summed is CHECKSUM_NONE and let the kernel take care of the checksum
handling. This fixes data transfer issues in noisy environments.
Reported-by: NMichael Heimpold <michael.heimpold@in-tech.com>
Fixes: 291ab06e ("net: qualcomm: new Ethernet over SPI driver for QCA7000")
Signed-off-by: NStefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In [1], Christoph Hellwig has proposed to remove the wrappers in
include/linux/pci-dma-compat.h.

Some reasons why this API should be removed have been given by Julia
Lawall in [2].

A coccinelle script has been used to perform the needed transformation
Only relevant parts are given below.

An 'unlikely()' has been removed when calling 'dma_mapping_error()' because
this function, which is inlined, already has such an annotation.

@@ @@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@ @@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

[1]: https://lore.kernel.org/kernel-janitors/20200421081257.GA131897@infradead.org/
[2]: https://lore.kernel.org/kernel-janitors/alpine.DEB.2.22.394.2007120902170.2424@hadrien/Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/bc6cd281eae024b26fd9c7ef6678d2d1dc9d74fd.1630150008.git.christophe.jaillet@wanadoo.frSigned-off-by: NJakub Kicinski <kuba@kernel.org>

In HTB offload mode, qdiscs of leaf classes are grafted to netdev
queues. sch_htb expects the dev_queue field of these qdiscs to point to
the corresponding queues. However, qdisc creation may fail, and in that
case noop_qdisc is used instead. Its dev_queue doesn't point to the
right queue, so sch_htb can lose track of used netdev queues, which will
cause internal inconsistencies.

This commit fixes this bug by keeping track of the netdev queue inside
struct htb_class. All reads of cl->leaf.q->dev_queue are replaced by the
new field, the two values are synced on writes, and WARNs are added to
assert equality of the two values.

The driver API has changed: when TC_HTB_LEAF_DEL needs to move a queue,
the driver used to pass the old and new queue IDs to sch_htb. Now that
there is a new field (offload_queue) in struct htb_class that needs to
be updated on this operation, the driver will pass the old class ID to
sch_htb instead (it already knows the new class ID).

Fixes: d03b195b ("sch_htb: Hierarchical QoS hardware offload")
Signed-off-by: NMaxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20210826115425.1744053-1-maximmi@nvidia.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

This adds device tree probing support for the PTP module
adjacent to the ethernet module. It is pretty straight
forward, all resources are in the device tree as they
come to the platform device.

Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The driver is being passed interrupts, then looking up the
same interrupts as GPIOs a second time to convert them into
interrupts and set properties on them.

This is pointless: the GPIO and irqchip APIs of a GPIO chip
are orthogonal. Just request the interrupts and be done
with it, drop reliance on any GPIO functions or definitions.

Use devres-managed functions and add a small devress quirk
to unregister the clock as well and we can rely on devres
to handle all the resources and cut down a bunch of
boilerplate in the process.

Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change the driver to use portable integer types to avoid warnings
during compile testing, including:

drivers/net/ethernet/xscale/ixp4xx_eth.c:721:21: error: cast to 'u32 *' (aka 'unsigned int *') from smaller integer type 'int' [-Werror,-Wint-to-pointer-cast]
        memcpy_swab32(mem, (u32 *)((int)skb->data & ~3), bytes / 4);
                           ^
drivers/net/ethernet/xscale/ixp4xx_eth.c:963:12: error: incompatible pointer types passing 'u32 *' (aka 'unsigned int *') to parameter of type 'dma_addr_t *' (aka 'unsigned long long *') [-Werror,-Wincompatible-pointer-types]
                                              &port->desc_tab_phys)))
                                              ^~~~~~~~~~~~~~~~~~~~
include/linux/dmapool.h:27:20: note: passing argument to parameter 'handle' here
                     dma_addr_t *handle);
                                 ^
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

After the recent ixp4xx cleanups, the ptp driver has gained a
build failure in some configurations:

drivers/net/ethernet/xscale/ptp_ixp46x.c: In function 'ptp_ixp_init':
drivers/net/ethernet/xscale/ptp_ixp46x.c:290:51: error: 'IXP4XX_TIMESYNC_BASE_VIRT' undeclared (first use in this function)

Avoid the last bit of hardcoded constants from platform headers
by turning the ptp driver bit into a platform driver and passing
the IRQ and MMIO address as resources.

This is a bit tricky:

- The interface between the two drivers is now the new
  ixp46x_ptp_find() function, replacing the global
  ixp46x_phc_index variable. The call is done as late
  as possible, in hwtstamp_set(), to ensure that the
  ptp device is fully probed.

- As the ptp driver is now called by the network driver, the
  link dependency is reversed, which in turn requires a small
  Makefile hack

- The GPIO number is still left hardcoded. This is clearly not
  great, but it can be addressed later. Note that commit 98ac0cc2
  ("ARM: ixp4xx: Convert to MULTI_IRQ_HANDLER") changed the
  IRQ number to something meaningless. Passing the correct IRQ
  in a resource fixes this.

- When the PTP driver is disabled, ethtool .get_ts_info()
  now correctly lists only software timestamping regardless
  of the hardware.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
[Fix a missing include]
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The parameter name of hclge_ptp_clean_tx_hwts() in declaration is "dev",
but the definition of this function is used the common name "hdev" as
other functions, so modify it.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Replace the "? :" statement wich max() to simplify code.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The type of tqp_vector->vector_irq is int, so modify its print format
to "%d".
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To improve flexibility, simplicity and maintainability to dump info of
every element of tm priority, add a struct hclge_dbg_item array of tm
priority and fill string of every data according to this array.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch reconstructs function hclge_ets_validate() to reduce the code
cycle complexity and make code more concise.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch reconstructs function hns3_self_test to reduce the code
cycle complexity and make code more concise.
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To make the format of each member initialization of structure array
clearer, initialize each member on a separate line.
Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>