For DEVICE_VERSION_V3, the hardware supports to match specified
data in the specified offset of packet payload. Each layer can
have one offset, and can't be masked when configure flow director
rule by ethtool command. The layer is selected based on the
flow-type, ether for L2, ip4/ipv6 for L3, and tcp4/tcp6/udp4/udp6
for L4. For example, tcp4/tcp6/udp4/udp6 rules share the same
user-def offset, but each rule can have its own user-def value.

For the user-def field of ethtool -N/U command is 64 bits long.
The bit 0~15 is used for user-def value, and bit 32~47 for user-def
offset in HNS3 driver.
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>

For only PF driver can configure flow director rule, it's
better to call hclge_del_all_fd_entries() directly in hclge
layer, rather than call hns3_del_all_fd_entries() in hns3
layer. Then the ae_algo->ops.del_all_fd_entries can be removed.
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>

Currently, the flow director rule of aRFS is configured in
the IO path. It's time-consuming. So move out the configuration,
and configure it asynchronously. And keep ethtool and tc flower
rule using synchronous way, otherwise the application maybe
unable to know the rule is installed or pending.

Add a state member for each flow director rule to indicate the
rule state. There are 4 states:
TO_ADD: the rule is waiting to add to hardware
TO_DEL: the rule is waiting to remove from hardware
DELETED: the rule has been removed from hardware. It's a middle
        state, used to remove the rule node in the fd_rule_list.
ACTIVE: the rule is already added in hardware

For asynchronous way, when receive a new request to add or delete
flow director rule by aRFS, update the rule list, then request to
schedule the service task to finish the configuration.

For synchronous way, when receive a new request to add or delete
flow director rule by ethtool or tc flower, configure hardware
directly, then update the rule list if success.
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 hardware supports to parse and match the traffic class field
of IPv6 packet for flow director, uses the same tuple as ip tos.
So removes the limitation of configure 'tclass' by driver.
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>

Currently, there are too many branches for hclge_fd_convert_tuple().
And it may be more when add new tuples. Refactor it by sorting the
tuples according to their length. So it only needs several KEY_OPT
now, and being flexible to add new tuples.
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 process of function hclge_fd_get_tuple() is complex and
prolix. To make it more readable, extract the process of each
flow-type tuple to a single function.
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 process of function hclge_add_fd_entry() is complex and
prolix. To make it more readable, extract the process of
fs->ring_cookie to a single function.
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>

Update the hisilicon drivers to make use of ethtool_sprintf. The general
idea is to reduce code size and overhead by replacing the repeated pattern
of string printf statements and ETH_STRING_LEN counter increments.
Signed-off-by: NAlexander Duyck <alexanderduyck@fb.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If the imp-controlled PHYs feature is enabled, driver can not
call phy driver interface to set loopback anymore and needs
to send command to firmware to start phy loopback.

Driver reuses the existing firmware command 0x0315 to start
phy loopback, just add a setting bit in this command. As this
command is not only for serdes loopback anymore, rename this
command to "xxx_COMMON_LOOPBACK", and modify function name,
macro name and logs related to it.
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>

When the imp-controlled PHYs feature is enabled, driver will not
register mdio bus. In order to support ioctl ops for phy tool to
read or write phy register in this case, the firmware implement
a new command for driver and driver implement ioctl by using this
new command.
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>

When the imp-controlled PHYs feature is enabled, phydev is NULL.
In this case, the autoneg is always off when user uses ethtool -a
command to get pause parameters because  hclge_get_pauseparam()
uses phydev to check whether device is TP port. To fit this new
feature, use media type to check whether device is TP port.

And when user set pause parameters, these parameters need to
always set to mac, no matter whether autoneg is off.
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>

IMP(Intelligent Management Processor) firmware add a new feature
to take control of PHYs for some new devices, PF driver adds
support for this feature.

Driver queries device's capability to check whether IMP supports
this feature, it will tell IMP to enable this feature by firmware
compatible command if it is supported.
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>

For maintainability and compatibility, add support to use pause
capability queried from firmware, and add debugfs support to dump
this capability.
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>

For maintainability and compatibility, add support to use FEC
capability queried from firmware.
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>

When hns_assemble_skb() returns NULL to skb, no error return code of
hns_nic_clear_all_rx_fetch() is assigned.
To fix this bug, ret is assigned with -ENOMEM in this case.
Reported-by: NTOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: NJia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The function hclge_fd_convert_tuple() is used to convert tuples
and tuples mask to TCAM x and y.  But it misuses the source mac
as source mac mask when convert INNER_SRC_MAC, which may cause
the flow director rule works unexpectedly. So fix it.

Fixes: 11732868 ("net: hns3: Add input key and action config support for flow director")
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Currently, the driver returns VLAN_VID_MASK for vlan mask field,
when get flow director rule information for rule doesn't use vlan.
It may cause the vlan mask value display as 0xf000 in this
case, like below:

estuary:/$ ethtool -u eth1
50 RX rings available
Total 1 rules

Filter: 2
Rule Type: TCP over IPv4
Src IP addr: 0.0.0.0 mask: 255.255.255.255
Dest IP addr: 0.0.0.0 mask: 255.255.255.255
TOS: 0x0 mask: 0xff
Src port: 0 mask: 0xffff
Dest port: 0 mask: 0xffff
VLAN EtherType: 0x0 mask: 0xffff
VLAN: 0x0 mask: 0xf000
User-defined: 0x1234 mask: 0x0
Action: Direct to queue 3

Fix it by return 0.

Fixes: 05c2314f ("net: hns3: Add support for rule query of flow director")
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Currently, some bit filed definitions of flow director TCAM
configuration command are incorrect. Since the wrong MSB is
always 0, and these fields are assgined in order, so it still works.

Fix it by redefine them.

Fixes: 11732868 ("net: hns3: Add input key and action config support for flow director")
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

hclge_rm_vport_all_mac_table() is bloated, so split it into
separate functions for readability and maintainability.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To make it more readable and maintainable, split
hclgevf_set_rss_tuple() into two parts.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To make it more readable and maintainable, split
hclge_set_rss_tuple() into two parts.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

hclgevf_cmd_send() is bloated, so split it into separate
functions for readability and maintainability.
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>

hclge_cmd_send() is bloated, so split it into separate
functions for readability and maintainability.
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>

hclge_dbg_dump_qos_buf_cfg() is bloated, so split it into
separate functions for readability and maintainability.
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>

To improve code readability and maintainability, separate
the flow type parsing part and the converting part from
bloated hclgevf_get_rss_tuple().
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>

To improve code readability and maintainability, separate
the flow type parsing part and the converting part from
bloated hclge_get_rss_tuple().
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>

To improve code readability and maintainability, separate
the command handling part and the status parsing part from
bloated hclge_set_vf_vlan_common().
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>

Use common ipv6_addr_any() to determine if an addr is ipv6 any addr.
Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As more commands are added, hns3_dbg_cmd_write() is going to
get more bloated, so move the part about command check into
a separate function.
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>

To improve code readability and maintainability, refactor
hclgevf_cmd_convert_err_code() with an array of imp_errcode
and common_errno mapping, instead of a bloated switch/case.
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>

To improve code readability and maintainability, refactor
hclge_cmd_convert_err_code() with an array of imp_errcode
and common_errno mapping, instead of a bloated switch/case.
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, a random stack value is being returned because variable
_ret_ is not properly initialized. This variable is actually not
used anymore and it should be removed.

Fix this by removing all instances of variable ret and return 0.

Fixes: 64749c9c ("net: hns3: remove redundant return value of hns3_uninit_all_ring()")
Addresses-Coverity-ID: 1501700 ("Uninitialized scalar variable")
Signed-off-by: NGustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently the RSS commands of VF are using host byte order.
According to the user manual, it should use little endian in
the command to firmware. For the host and firmware are both
using little endian, so it can work well in this case.

Do cleanup to make it more explicitly.
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>

Some macros are defined but unused, so remove them.
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>

Parameter vf in hclge_vf_rate_param_check() is unused now,
so remove it.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since hns3_uninit_all_ring() only returns 0, so remove this
redundant return value and function declaration in hns3_enet.h.
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The type of parameter mpf_bd_num and pf_bd_num in
hclge_query_bd_num() should be u32* instead of int*,
so change them.
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>

The type of parameters in hclge_parse_speed() should be
unsigned type, so change them.
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>

Fix an issue where the formatting symbol of the formatting input and
output function does not match the actual type.
Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In macro definitions, parentheses are unnecessary in some cases,
such as the calling parameter of a function, the left variable
of the equal sign, and so on. So remove these unnecessary
parentheses according to these rules.
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>