Since field .uinfo in struct hnae3_handle never be used,
so remove it and its structure definition.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove HNAE3_RESTORE_CLIENT which is not needed now.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch provides a new interface for the client to query
whether CMDQ is ready to work.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch adds support for reading the optical module eeprom
info via "ethtool -m".
Signed-off-by: NYonglong Liu <liuyonglong@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Acked-by: NJakub Kicinski <kuba@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently, the PF driver removes all (including its VFs') MAC/VLAN
flow director table entries when resetting, and restores them after
reset completed.

In fact, the hardware will clear all table entries only in IMP
reset and global reset. So driver only needs to restore the table
entries in these cases, and needs do nothing when PF reset, FLR
or other function level reset.

This patch optimizes it by removing unnecessary table entries clear
and restoring handling in the reset flow, and doing the restoring
after reset completed.
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>

As the HNS3 driver doesn't update the MAC address directly in
function hns3_set_rx_mode() now, it can't know whether the
MAC table is full from __dev_uc_sync() and __dev_mc_sync(),
so it's senseless to handle the overflow promisc here.

This patch removes the handle of overflow promisc from function
hns3_set_rx_mode(), and updates the promisc mode in the service
task.
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>

When the fraglist SKB headlen is larger than zero, current code
still handle the fraglist SKB linear data as frag data, which may
cause TX error.

This patch adds a new DESC_TYPE_FRAGLIST_SKB type to handle the
mapping and unmapping of the fraglist SKB linear data buffer.

Fixes: 8ae10cfb ("net: hns3: support tx-scatter-gather-fraglist feature")
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>

Currently, the actual work of VF FLR is handled in the reset task,
which is asynchronous. So in some case, if the preparing and
rebuilding are not done, then the VF FLR will trigger some problems,
for example, makes hardware go into chaos.

So this patch separates the process of VF FLR from reset task, and
adds a semaphore to serialize this reset and others.

When FLR's preparing fails, if there has other higher level reset
pending or failing times less than the HCLGE_FLR_RETRY_CNT, this
preparing should be retried, otherwise it will get into a wrong state.

BTW, while the hardware reports misc interrupt during pcie_flr(),
the driver can not receive this interrupt anymore, so disable it
when hclgevf_flr_prepare() return, and re-enable it when enter
hclgevf_flr_done().

Avoid declaring internal function hclgevf_enable_vector(), this patch
also moves its definition forward, and removes unused enum
hnae3_flr_state.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In hclge_inform_reset_assert_to_vf(), variable reset_type(enum type)
will be copied into msg_data whose size is 2 bytes. Currently, hip08
is a little-endian machine, so the lower two bytes of reset_type will
be copied to msg_data. But when running on a big-endian machine,
msg_data will have a wrong value(the higher two bytes of reset_type).

So this patch modifies the type of reset_type to u16, and adds a
build check in case enum hnae3_reset_type has value larger than
U16_MAX.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The misc IRQ of all the devices have the same name, so it's
hard to find the right misc IRQ of the device.

This patch modifies the misc IRQ names as "hclge/hclgevf"-misc-
"pci name". And now the IRQ name is not related to net device
name anymore, so change the HNAE3_INT_NAME_LEN to 32 bytes, and
that is enough.
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>

This patch corrects the SPDX License Identifier style in
header files related to Hisilicon network devices. For C header files
Documentation/process/license-rules.rst mandates C-like comments
(opposed to C source files where C++ style should be used)

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.
Suggested-by: NJoe Perches <joe@perches.com>
Signed-off-by: NNishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In hns3_nic_init_irq(), when '*_int_idx' has more than 9 digits
and the length of netdev's name is IFNAMSIZ, the total length
of final name will be bigger the HNAE3_INT_NAME_LEN - 1, even
though '*_int_idx' will never have such large value, but the
compiler gives a format-truncation warning for this case.

So this patch just enlarges the length to avoid this warning.
Signed-off-by: NGuojia Liao <liaoguojia@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To unify code style and make code simpler, this patch modifies
some code, deletes unnecessary blank lines and {}, changes
location of code, and so on.

No functional change.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently, the num_msi_left means the vector numbers of NIC,
but if the PF supported RoCE, it contains the vector numbers
of NIC and RoCE(Not expected).

This may cause interrupts lost in some case, because of the
NIC module used the vector resources which belongs to RoCE.

This patch adds a new variable num_nic_msi to store the vector
numbers of NIC, and adjust the default TQP numbers and rss_size
according to the value of num_nic_msi.

Fixes: 46a3df9f ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
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>

This patch adds support of configuring VF MAC from the host
for the HNS3 driver.

BTW, the parameter init in the hns3_init_mac_addr is
unnecessary now, since the MAC address will not read from
NCL_CONFIG when doing reset, so it should be removed,
otherwise it will affect VF's MAC address initialization.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>

This patch adds support for configuring bandwidth of VF on the host
for HNS3 drivers.
Signed-off-by: NYonglong Liu <liuyonglong@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>

This patch adds supports for setting VF trust by host. If specified
VF is trusted, then it can enable promisc(include allmulti mode).
If a trusted VF enabled promisc, and being untrusted, host will
disable promisc mode for this VF.

For VF will update its promisc mode from set_rx_mode now, so it's
unnecessary to set broadcst promisc mode when initialization or
reset.
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>

This patch adds support for spoof check configuration for VFs.
When it is enabled, "spoof checking" is done for both mac address
and VLAN. For each VF, the HW ensures that the source MAC address
(or VLAN) of every outgoing packet exists in the MAC-list (or
VLAN-list) configured for RX filtering for that VF. If not,
the packet is dropped.
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>

This patch adds support to configure VF link properties.
The options are auto, enable, and disable. Even if the PF
is down, the communication between VFs will be normal
if the VFs are set to enable. The commands are as follows:

'ip link set <pf> vf <vf_id> state <auto|enable|disable>'
change the VF status

'ip link show'
show the setting status
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>

When hardware or IMP get specified error it may need the client
to take some special operations.

This patch implements the hns3 client's process_hw_errorx.
Signed-off-by: NWeihang Li <liweihang@hisilicon.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Reviewed-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To explain some code, this patch adds some comments, and modifies or
merges some comments to make them more neat.
Signed-off-by: NGuojia Liao <liaoguojia@huawei.com>
Signed-off-by: NZhongzhu Liu <liuzhongzhu@huawei.com>
Signed-off-by: NWeihang Li <liweihang@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Macro arguments should be enclosed in parentheses, in case of
expression argument, but parentheses of pure number in macro
definition should be removed for simplicity.
Signed-off-by: NGuojia Liao <liaoguojia@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch refines the interface for querying MAC pause
statistics, and adds structure hns3_mac_stats to keep the
count of TX & RX.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Reviewed-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 modifies firmware version display format in
hclge(vf)_cmd_init() and hns3_get_drvinfo(). Also, adds
some optimizations for firmware version display format.
Signed-off-by: NYufeng Mo <moyufeng@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 add override_pci_need_reset to prevent redundant and unwanted PF
resets if a RAS error occurs in commit 69b51bbb ("net: hns3: fix
to stop multiple HNS reset due to the AER changes").

Now in HNS3 driver, we use hw_err_reset_req to record reset level that
we need to recover from a RAS error. This variable cans solve above
issue as override_pci_need_reset, so this patch removes
override_pci_need_reset.
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>

When doing selftest for fibre port with autoneg on, the MAC speed
may be incorrect, which may cause the selftest failed. This patch
fixes it by halting autoneg during the selftest.

Fixes: 22f48e24 ("net: hns3: add autoneg and change speed support for fibre port")
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>

This patch does following things:
1. add the keyword const before some variables which won't be modified
   in functions.
2. changes some variables from signed to unsigned to avoid bitwise
   operation on signed variables.
3. adds or removes initialization of some variables.
4. defines a new structure to help parsing mailbox messages instead of
   using an array which is harder to get the meaning of each element.
Signed-off-by: NWeihang Li <liweihang@hisilicon.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NYunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Presently the error handling code sets the reset level required
for the recovery of the hw errors to the reset framework in the
error_detected AER callback. However the rest_event would be
called later from the slot_reset callback. This can cause issue
of using the wrong reset_level if a high priority reset request
occur before the slot_reset is called.

This patch delays setting of the reset level, required
for the hw errors, to the reset framework until the
slot_reset is called.
Reported-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NShiju Jose <shiju.jose@huawei.com>
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>

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>

In orginal codes, the driver only restore VLAN filter entries
for PF after reset, the VLAN entries of VF will lose in this
case.

This patch fixes it by recording VLAN IDs for each function
when add VLAN, and restore the VLAN IDs after reset.

Fixes: 681ec399 ("net: hns3: fix for vlan table lost problem when resetting")
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>

Since core reset is similar to the global reset, so this
patch removes it and uses global reset to replace it.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds aRFS support for PF. The aRFS rules are also
stored in the hardware flow director table, Use the existing
filter management functions to insert TCPv4/UDPv4/TCPv6/UDPv6
flow director filters. To avoid rule conflict, once user adds
flow director rules with ethtool, the aRFS will be disabled,
and clear exist aRFS rules. Once all user configure rules were
removed, aRFS can work again.
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 adds support for FEC encoding control, user can change
FEC mode by command ethtool --set-fec, and get FEC mode by command
ethtool --show-fec. The fec capability is changed follow the port
speed. If autoneg on, the user configure fec mode will be overwritten
by autoneg result.
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Previously, our driver only supports phydev to autoneg or change
port speed. This patch adds support for fibre port, driver gets
media speed capability and autoneg capability from firmware. If
the media supports multiple speeds, user can change port speed
with command "ethtool -s <devname> speed xxxx autoneg off duplex
full". If autoneg on, the user configuration may be overwritten
by the autoneg result.
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Previously, we can only identify copper and fiber type, the
supported link modes of port information are always showing
SR type. This patch adds support for multiple media types,
include SR, LR CR, KR. Driver needs to query the media type
from firmware periodicly, and updates the port information.

The new port information looks like this:
Settings for eth0:
        Supported ports: [ FIBRE ]
        Supported link modes:   25000baseCR/Full
                                25000baseSR/Full
                                1000baseX/Full
                                10000baseCR/Full
                                10000baseSR/Full
                                10000baseLR/Full
        Supported pause frame use: Symmetric
        Supports auto-negotiation: No
        Supported FEC modes: None BaseR
        Advertised link modes:  Not reported
        Advertised pause frame use: No
        Advertised auto-negotiation: No
        Advertised FEC modes: Not reported
        Speed: 10000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: off
        Current message level: 0x00000036 (54)
                               probe link ifdown ifup
        Link detected: yes

In order to be compatible with old firmware which only support
sfp speed, we remained using the same query command, and kept
the former logic.
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds support for network interface message level
settings. The message level can be changed by module parameter
or ethtool.
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>

Currently we just print few information when tx timeout happens.
In order to find out the cause of timeout, this patch prints more
information about the packet statistics, tqp registers and
napi state.
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>

Currently, in TX direction, driver implements the TX VLAN offload
by checking the VLAN header in skb, and filling it into TX descriptor.
Usually it works well, but if enable inserting VLAN header based on
port, it may conflict when out_tag field of TX descriptor is already
used, and cause RAS error.

In RX direction, hardware supports stripping max two VLAN headers.
For vlan_tci in skb can only store one VLAN tag, when RX VLAN offload
enabled, driver tells hardware to strip one VLAN header from RX
packet; when RX VLAN offload disabled, driver tells hardware not to
strip VLAN header from RX packet. Now if port based insert VLAN
enabled, all RX packets will have the port based VLAN header. This
header is useless for stack, driver needs to ask hardware to strip
it. Unfortunately, hardware can't drop this VLAN header, and always
fill it into RX descriptor, so driver has to identify and drop it.
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>

Our hardware supports inserting a specified VLAN header for each
function when sending packets. User can enable it with command
"ip link set <devname> vf  <vfid> vlan <vlan id>".
For this VLAN header is inserted by hardware, not from stack,
hardware also needs to strip it from received packets before
sending to stack.  In this case, driver needs to tell
hardware which VLAN to insert or strip.

The current VLAN initialization doesn't allow inserting
VLAN header by hardware, this patch modifies it, in order be
compatible with VLAN inserted base on port.
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>

The commit bfcb79fc
("PCI/ERR: Run error recovery callbacks for all affected devices")
affected the non-fatal error recovery logic for the HNS and RDMA devices.
This is because each HNS PF under PCIe bus receive callbacks
from the AER driver when an error is reported for one of the PF.
This causes unwanted PF resets because
the HNS decides which PF to reset based on the reset type set.
The HNS error handling code sets the reset type based on the hw error
type detected.

This patch provides fix for the above issue for the recovery of
the hw errors in the HNS and RDMA devices.

This patch needs backporting to the kernel v5.0+

Fixes: 332fbf57 ("net: hns3: add handling of hw ras errors using new set of commands")
Reported-by: NXiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: NShiju Jose <shiju.jose@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>