net: hns3: fix output information incomplete for dumping tx queue info with debugfs

In function hns3_dump_tx_queue_info, The print buffer is not enough when
the tx BD number is configured to 32760. As a result several BD
information wouldn't be displayed.

So fix it by increasing the tx queue print buffer length.

Fixes: 630a6738da82 ("net: hns3: adjust string spaces of some parameters of tx bd info in debugfs")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: hns3: fix the concurrency between functions reading debugfs

Currently, the debugfs mechanism is that all functions share a
global variable to save the pointer for obtaining data. When
different functions concurrently access the same file node,
repeated release exceptions occur. Therefore, the granularity
of the pointer for storing the obtained data is adjusted to be
private for each function.

Fixes: 5e69ea7ee2a6 ("net: hns3: refactor the debugfs process")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: hns3: fix hns3 driver header file not self-contained issue

The hns3 driver header file uses the structure of other files, but does
not include corresponding file, which causes a check warning that the
header file is not self-contained.

Therefore, the required header file is included in the header file, and
the structure declaration is added to the header file to avoid cyclic
dependency of the header file.

Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: hns3: change the method of getting cmd index in debugfs

Currently, the cmd index is obtained in debugfs by comparing file names.
However, this method may cause errors when processing more complex file
names. So, change this method by saving cmd in private data and comparing
it when getting cmd index in debugfs for optimization.

Fixes: 5e69ea7ee2a6 ("net: hns3: refactor the debugfs process")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: hns3: refactor dump fd tcam of debugfs

Currently, the debugfs command for fd tcam is implemented by
"echo xxxx > cmd", and record the information in dmesg. It's
unnecessary and heavy. To improve it, create a single file
"fd_tcam" for it, and query it by command "cat fd_tcam",
return the result to userspace, rather than record in dmesg.

The display style is below:
$ cat fd_tcam
read result tcam key x(31):
00000000
00000000
00000000
08000000
00000600
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
read result tcam key y(31):
00000000
00000000
00000000
f7ff0000
0000f900
00000000
00000000
00000000
00000000
00000000
00000000
00000000
0000fff8

Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: hns3: refactor queue info of debugfs

Currently, the debugfs command for queue info is implemented by
"echo xxxx > cmd", and record the information in dmesg. It's
unnecessary and heavy. To improve it, create two files
"rx_queue_info" and "tx_queue_info" for it, and query it
by command "cat rx_queue_info" and "cat tx_queue_info",
return the result to userspace, rather than record in dmesg.

The display style is below:
$ cat rx_queue_info
QUEUE_ID BD_NUM BD_LEN TAIL HEAD FBDNUM PKTNUM ...
0 0 0 0 0 0 0 ...
1 0 0 0 0 0 0 ...
2 0 0 0 0 0 0 ...

$ cat tx_queue_info
QUEUE_ID BD_NUM TC TAIL HEAD FBDNUM OFFSET PKTNUM ...
0 0 0 0 0 0 0 0 ...
1 0 0 0 0 0 0 0 ...
2 0 0 0 0 0 0 0 ...

Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: hns3: refactor queue map of debugfs

Currently, the debugfs command for queue map is implemented by
"echo xxxx > cmd", and record the information in dmesg. It's
unnecessary and heavy. To improve it, create a single file
"queue_map" for it, and query it by command "cat queue_map",
return the result to userspace, rather than record in dmesg.

The display style is below:
$ cat queue_map
local_queue_id global_queue_id vector_id
0 0 341

Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: hns3: refactor dump reg of debugfs

Currently, the debugfs command for reg is implemented by
"echo xxxx > cmd", and record the information in dmesg. It's
unnecessary and heavy. To improve it, create some files
"bios_common/ssu/igu_egu/rpu/ncsi/rtc/ppp/rcb/tqp/mac" for it,
and query it by command "cat xxx", return the result to
userspace, rather than record in dmesg.

The display style is below:
$ cat bios_common
BP_CPU_STATE: 0x0
DFX_MSIX_INFO_NIC_0: 0xc000
DFX_MSIX_INFO_NIC_1: 0x0
DFX_MSIX_INFO_NIC_2: 0x0
DFX_MSIX_INFO_NIC_3: 0x0
DFX_MSIX_INFO_ROC_0: 0xc000
DFX_MSIX_INFO_ROC_1: 0x0
DFX_MSIX_INFO_ROC_2: 0x0
DFX_MSIX_INFO_ROC_3: 0x0

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: hns3: refactor dump ncl config of debugfs

Currently, the debugfs command for ncl config is implemented by
"echo xxxx > cmd", and record the information in dmesg. It's
unnecessary and heavy. To improve it, create a single file
"ncl_config" for it, and query it by command "cat ncl_config",
return the result to userspace, rather than record in dmesg.

The display style is below:
$cat ncl_config
offset | data
0x0000 | 0x00000028
0x0004 | 0x00000400
0x0008 | 0x08040201
0x000c | 0x00000000
0x0010 | 0x00040004
0x0014 | 0x00040004
0x0018 | 0x00000000
0x001c | 0x00000000
0x0020 | 0x00040004

Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: hns3: refactor dump mac list of debugfs

Currently, the debugfs command for mac list info is implemented
by "echo xxxx > cmd", and record the information in dmesg. It's
unnecessary and heavy. To improve it, create two files "uc" and
"mc" under directory "mac_list" for it, and query mac list info
by "cat mac_list/uc" and "mac_list/mc", return the result to
userspace, rather than record in dmesg.

The display style is below:
$ cat mac_list/uc
UC MAC_LIST:
FUNC_ID MAC_ADDR STATE
pf 00:18:2d:00:00:71 ACTIVE

$ cat mac_list/mc
MC MAC_LIST:
FUNC_ID MAC_ADDR STATE
pf 01:80:c2:00:00:21 ACTIVE

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: hns3: refactor dump bd info of debugfs

Currently, the debugfs command for bd info is implemented
by "echo xxxx > cmd", and record the information in dmesg.
It's unnecessary and heavy.

To improve it, add two debugfs directories "tx_bd_info" and
"rx_bd_info", and create a file for each queue under these
two directories, and query the bd info of specific queue by
"cat tx_bd_info/tx_bd_queue*" or "cat rx_bd_info/rx_bd_queue*",
return the result to userspace, rather than record in dmesg.

The display style is below:
$ cat rx_bd_info/rx_bd_queue0
Queue 0 rx bd info:
BD_IDX L234_INFO PKT_LEN SIZE...
0 0x0 60 60...
1 0x0 1512 1512...

$ cat tx_bd_info/tx_bd_queue0
Queue 0 tx bd info:
BD_IDX ADDRESS VLAN_TAG SIZE...
0 0x0 0 0...
1 0x0 0 0...

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: hns3: refactor dev capability and dev spec of debugfs

Currently, the debugfs command for dev capability and dev spec
are implemented by "echo xxxx > cmd", and record the information
in dmesg. It's unnecessary and heavy. To improve it, create a
single file "dev_info" for them, and query them by command
"cat dev_info", return the result to userspace, rather than
record in dmesg.

The display style is below:
$cat dev_info
dev capability:
support FD: yes
support GRO: yes
support FEC: yes
support UDP GSO: no
support PTP: no
support INT QL: no
support HW TX csum: no
support UDP tunnel csum: no
support TX push: no
support imp-controlled PHY: no
support rxd advanced layout: no

dev spec:
MAC entry num: 0
MNG entry num: 0
MAX non tso bd num: 8
RSS ind tbl size: 512
RSS key size: 40
RSS size: 1
Allocated RSS size: 0
Task queue pairs numbers: 1
RX buffer length: 2048
Desc num per TX queue: 1024
Desc num per RX queue: 1024
Total number of enabled TCs: 1
MAX INT QL: 0
MAX INT GL: 8160
MAX TM RATE: 100000
MAX QSET number: 1024

Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: hns3: refactor the debugfs process

Currently, each debugfs command needs to create a file to get
the information. To better support more debugfs commands, the
debugfs process is reconstructed, including the process of
creating dentries and files, and obtaining information.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>