Simplify the code by removing struct rtl_cfg_info. Only info we need
per PCI ID is whether it supports GBit or not.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To prepare removal of struct rtl_cfg_info, set the coalesce
config based on the chip version number.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

After the latest changes we don't need separate functions
rtl_hw_start_8168 and rtl_hw_start_8101 any longer. This allows us to
simplify the code. For this change we need to move rtl_hw_start() and
rtl_hw_start_8169(). rtl_hw_start_8169() is unchanged.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

CPCMD_QUIRK_MASK isn't specific to certain chip versions. The vendor
driver applies this mask to all 8168 versions. Therefore remove QUIRK
from the mask name and apply it on all chip versions.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

So far several places in the code deal with setting the interrupt mask
for the respective chip versions. Improve this by having one function
for this only. In addition don't set RxFIFOOver for all 8101 chip
versions like in the vendor driver.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Page pods are used for direct data placement, this patch
enables eDRAM page pods if firmware supports this feature.
Signed-off-by: NVarun Prakash <varun@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Besides the MIB counters, some other useful counters can be exposed to
the user. This commit adds support for :

 - Per-port counters, that indicate FIFO drops and classifier drops,
 - Per-rxq counters,
 - Per-txq counters
Signed-off-by: NMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since we'll be adding support for other kind of internal counters, make
clear that the currently supported counters are the MIB counters.
Signed-off-by: NMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When first configuring a port on PPv2, we want to clear the internal
counters so that we don't get values from previous boot stages.

However, we can't really clear these counters when resetting the MAC,
since there are valid reasons to do so while the port is being used,
such as when reconfiguring the interface mode with the PHY.
Signed-off-by: NMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/mscc/ocelot_ace.c: In function ‘vcap_cmd’:
drivers/net/ethernet/mscc/ocelot_ace.c:108:6: warning: variable ‘rc’ set
but not used [-Wunused-but-set-variable]
  int rc;
      ^
It's never used since introduction in commit b5962294 ("net: mscc:
ocelot: Add support for tcam")
Signed-off-by: NMao Wenan <maowenan@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Based on review, `lock' is only acquired in hwbm_pool_add() which is
invoked via ->probe(), ->resume() and ->ndo_change_mtu(). Based on this
the lock can become a mutex and there is no need to disable interrupts
during the procedure.
Now that the lock is a mutex, hwbm_pool_add() no longer invokes
hwbm_pool_refill() in an atomic context so we can pass GFP_KERNEL to
hwbm_pool_refill() and remove the `gfp' argument from hwbm_pool_add().

Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

tg3_alloc_rx_data() uses netdev_alloc_frag() for skb allocation. All
callers of tg3_alloc_rx_data() either hold tp->lock (which is held with
BH disabled) or run in NAPI context.

Use napi_alloc_frag() for skb allocations.

Cc: Siva Reddy Kallam <siva.kallam@broadcom.com>
Cc: Prashant Sreedharan <prashant@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

SKB allocation via bnx2x_frag_alloc() is always performed in NAPI
context. Preemptible context passes GFP_KERNEL and bnx2x_frag_alloc()
uses then __get_free_page() for the allocation.

Use napi_alloc_frag() for memory allocation.

Cc: Ariel Elior <aelior@marvell.com>
Cc: Sudarsana Kalluru <skalluru@marvell.com>
Cc: GR-everest-linux-l2@marvell.com
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The driver is using netdev_alloc_frag() for allocation in the
->ndo_start_xmit() path. That one is always invoked in a BH disabled
region so we could also use napi_alloc_frag().

Use napi_alloc_frag() for skb allocation.

Cc: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Acked-by: NIoana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

According to the comment, the preempt_disable() statement is required
due to synchronisation in napi_alloc_frag(). The awful truth is that
local_bh_disable() is required because otherwise the NAPI poll callback
can be invoked while the open function setup buffers. This isn't
unlikely since the dpaa2 provides multiple devices.

The usage of napi_alloc_frag() has been removed in commit

 27c87486 ("dpaa2-eth: Use a single page per Rx buffer")

which means that the comment is not accurate and the preempt_disable()
statement is not required.

Remove the outdated comment and the no longer required
preempt_disable().

Cc: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Acked-by: NIoana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

dev_err() is more appropriate for printing error messages inside
drivers, so switch to dev_err().
Signed-off-by: NFabio Estevam <festevam@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Spread initial IRQ affinity hints across the device node CPUs,
for nic queue and uld queue IRQs, to load balance and avoid
all interrupts on CPU0.
Signed-off-by: NNirranjan Kirubaharan <nirranjan@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch fixes some coding style issues reported by some static code
analysis tools and code review, such as modify some comments, rename
some variables, log some errors in detail, and fixes some alignment
errors.

BTW, these cleanups do not change the logic of code.
Signed-off-by: NWeihang Li <liweihang@hisilicon.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NYonglong Liu <liuyonglong@huawei.com>
Signed-off-by: NHuiSong Li <lihuisong@huawei.com>
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch deletes some redundant code and refactors some bloated
functions.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NWeihang Li <liweihang@hisilicon.com>
Signed-off-by: NYonglong Liu <liuyonglong@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In order to make it more readable, this patch modifies PF/VF's
RSS hash key configuring function.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NWeihang Li <liweihang@hisilicon.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds some macros instead of magic numbers in serval places
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NWeihang Li <liweihang@hisilicon.com>
Signed-off-by: NYunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In order to improve readability, this patch uses macros to
replace some magic numbers, and adds some comments for some
others.
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since HNAE3_CLIENT_UNIC and HNAE3_DEV_UNIC is not used any more,
this patch removes the redundant codes.
Signed-off-by: NYonglong Liu <liuyonglong@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We trigger PF reset when a RAS error of NIC named over_8bd_nfe_err
occurred before. But it is possible that a VF causes that error, it's
reasonable to trigger VF reset instead of PF reset in this case.
This patch add detection of vf_id if a over_8bd_nfe_err occurs, if
vf_id is 0, we trigger PF reset. Otherwise, we will trigger VF reset
on the VF with error.
Signed-off-by: NWeihang Li <liweihang@hisilicon.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds a new hns3_get_new_flow_lvl function to calculate
the packet flow level, which is used to decide the interrupt
coalescence parameter, in order to make the flow level calculation
code more readable and make the future calculation ajdustment easier.
Signed-off-by: NYunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch replaces numa_node_id with numa_mem_id when doing buffer
reusing checking, because the buffer still can be reused when the
buffer is from the nearest node and the local node has no memory
attached.
Signed-off-by: NYunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently when a GRO packet is assembled by HW, the checksum is
modified to reflect the entire packet by HW and skb->ip_summed is
set to CHECKSUM_UNNECESSARY, which is not compliant with SW GRO.

This patch sets up skb's network and transport header, sets the
GRO packet's checksum according to pseudo header and set the
skb->ip_summed to CHECKSUM_PARTIAL.

This patch also use gso_size to distinguish GRO packet from
normal packet, use eth_type_vlan to check the VLAN type and set
the SKB_GSO_TCP_FIXEDID according to BD info during HW GRO info
processing.
Signed-off-by: NYunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

According to user manual, the maximum size of mailbox responding
data is 8 bytes, the macro HCLGE_MBX_MAX_RESP_DATA_SIZE
should be defined as 8 instead of 16.

Fixes: 9194d18b ("net: hns3: fix the problem that the supported port is empty")
Signed-off-by: NZhongzhu Liu <liuzhongzhu@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch logs detail error info of ROCEE ECC and AXI errors for
debug purpose, and remove unnecessary reset for ROCEE overflow
errors.
Signed-off-by: NXiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Some CPTS instances, which can be found on KeyStone 2 1G Ethernet Switch
Subsystems, can control an external multiplexer that selects one of up to
32 clocks as time sync reference (RFTCLK) clock. This feature can be
configured through CPTS_RFTCLK_SEL register (offset: x08) in CPTS module
and can be represented as multiplexer clock.

Hence, introduce support for optional cpts-refclk-mux clock, which, once
defined will allow to select required CPTS RFTCLK by using
assigned-clock-parents DT property in board files.
Signed-off-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Acked-by: NRichard Cochran <richardcochran@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Allow to place CPTS properties in the child "cpts" DT node. For backward
compatibility - roll-back and read CPTS DT properties from parent node if
"cpts" node is not present.
Signed-off-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Acked-by: NRichard Cochran <richardcochran@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use devm_get_clk_from_child() instead of devm_clk_get() and this way allow
to group CPTS DT properties in sub-node for better code readability and
maintenance. Roll-back to devm_clk_get() if devm_get_clk_from_child()
fails for backward compatibility.
Signed-off-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Acked-by: NRichard Cochran <richardcochran@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Convert this driver to use the phylink API rather than the legacy PHY
API. This allows for better support for SFP modules connected using a
1000BaseX or SGMII interface.
Signed-off-by: NRobert Hancock <hancock@sedsystems.ca>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently the axienet driver requires the use of a second devicetree
node, referenced by an axistream-connected attribute on the Ethernet
device node, which contains the resources for the AXI DMA block used by the
device. This setup is problematic for a use case we have where the Ethernet
and DMA cores are behind a PCIe to AXI bridge and the memory resources for
the nodes are injected into the platform devices using the multifunction
device subsystem - it's not easily possible for the driver to obtain the
platform-level resources from the linked device.

In order to simplify that usage model, and simplify the overall use of
this driver in general, allow for all of the resources to be kept on one
node where the resources are retrieved using platform device APIs rather
than device-tree-specific ones. The previous usage setup is still
supported if the axistream-connected attribute is specified.
Signed-off-by: NRobert Hancock <hancock@sedsystems.ca>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This driver was previously using the parent node of the specified PHY
node as the device node to register the MDIO bus on. Andrew Lunn
pointed out this is wrong as the PHY node is potentially not even
underneath the MDIO bus for the current device instance. Find the MDIO
node explicitly by looking it up by name under the controller's device
node instead.

This could potentially break existing device trees if they don't use
"mdio" as the name for the MDIO bus, but I did not find any with various
searches and Xilinx's examples all use mdio as the name so it seems like
this should be relatively safe.
Signed-off-by: NRobert Hancock <hancock@sedsystems.ca>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

On some platforms, such as iMX6 with PCIe devices, crashes or hangs can
occur if the axienet device continues to perform DMA transfers after
parent devices/busses have been shut down. Shut down the axienet
interface during its shutdown callback in order to avoid this.
Signed-off-by: NRobert Hancock <hancock@sedsystems.ca>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Failing initialization on a missing MAC address property is excessive.
We can just fall back to using a random MAC instead, which at least
leaves the interface in a functioning state.
Signed-off-by: NRobert Hancock <hancock@sedsystems.ca>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

It is possible that the interrupt handler fires and frees up space in
the TX ring in between checking for sufficient TX ring space and
stopping the TX queue in axienet_start_xmit. If this happens, the
queue wake from the interrupt handler will occur before the queue is
stopped, causing a lost wakeup and the adapter's transmit hanging.

To avoid this, after stopping the queue, check again whether there is
sufficient space in the TX ring. If so, wake up the queue again.
Signed-off-by: NRobert Hancock <hancock@sedsystems.ca>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Previously this driver only handled interrupts from the DMA RX and TX
blocks, not from the Ethernet core itself. Add optional support for
the Ethernet core interrupt, which is used to detect rx_missed and
framing errors signalled by the hardware. In order to use this
interrupt, a third interrupt needs to be specified in the device tree.
Signed-off-by: NRobert Hancock <hancock@sedsystems.ca>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Specify IRQF_SHARED to support shared interrupts. If the interrupt
handler is called and the device is not indicating an interrupt,
just return IRQ_NONE rather than spewing error messages.
Signed-off-by: NRobert Hancock <hancock@sedsystems.ca>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>