Commit Graph

222 Commits

Author SHA1 Message Date
Jian Shen 35244430d6 net: hns3: refine the struct hane3_tc_info
Currently, there are multiple members related to tc information
in struct hnae3_knic_private_info. Merge them into a new struct
hnae3_tc_info.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-12-09 20:33:19 -08:00
Jian Shen 5e7414cdf1 net: hns3: add priv flags support to switch limit promisc mode
Currently, the tx unicast promisc is always enabled when promisc
mode on. If tx unicast promisc on, a function will receive all
unicast packet from other functions belong to the same port.
Add a ethtool private flag to control whether enable tx
unicast promisc. Then the function is able to filter the
unknown unicast packets from other function.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-08 11:58:52 -08:00
Huazhong Tan 3e2816219d net: hns3: add udp tunnel checksum segmentation support
For the device who has the capability to handle udp tunnel
checksum segmentation, add support for it.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-01 15:16:31 -08:00
Huazhong Tan 66d52f3bf3 net: hns3: add support for TX hardware checksum offload
For the device that supports TX hardware checksum, the hardware
can calculate the checksum from the start and fill the checksum
to the offset position, which reduces the operations of
calculating the type and header length of L3/L4. So add this
feature for the HNS3 ethernet driver.

The previous simple BD description is unsuitable, rename it as
HW TX CSUM.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-01 15:16:31 -08:00
Colin Ian King be419fcacf net: hns3: fix spelling mistake "memroy" -> "memory"
There are spelling mistakes in two dev_err messages. Fix them.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20201123103452.197708-1-colin.king@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-24 13:20:13 -08:00
Huazhong Tan 30ae7f8a6a net: hns3: add support for mapping device memory
For device who has device memory accessed through the PCI BAR4,
IO descriptor push of NIC and direct WQE(Work Queue Element) of
RoCE will use this device memory, so add support for mapping
this device memory, and add this info to the RoCE client whose
new feature needs.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-21 14:33:46 -08:00
Yonglong Liu 9a5ef4aa54 net: hns3: add support for 1280 queues
For DEVICE_VERSION_V1/2, there are total 1024 queues and
queue sets. For DEVICE_VERSION_V3, it increases to 1280,
and can be assigned to one pf, so remove the limitation
of 1024.

To keep compatible with DEVICE_VERSION_V1/2 and old driver
version, the queue number is split into two part:
tqp_num(range 0~1023) and ext_tqp_num(range 1024~1279).

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-21 14:33:46 -08:00
Huazhong Tan ab16b49cdf net: hns3: add support for querying maximum value of GL
For maintainability and compatibility, add support for querying
the maximum value of GL.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-17 11:39:20 -08:00
Huazhong Tan 91bfae25ee net: hns3: add support for configuring interrupt quantity limiting
QL(quantity limiting) means that hardware supports the interrupt
coalesce based on the frame quantity.  QL can be configured when
int_ql_max in device's specification is non-zero, so add support
to configure it. Also, rename two coalesce init function to fit
their purpose.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-17 11:39:20 -08:00
Zenghui Yu e3364c5ff3 net: hns3: Clear the CMDQ registers before unmapping BAR region
When unbinding the hns3 driver with the HNS3 VF, I got the following
kernel panic:

[  265.709989] Unable to handle kernel paging request at virtual address ffff800054627000
[  265.717928] Mem abort info:
[  265.720740]   ESR = 0x96000047
[  265.723810]   EC = 0x25: DABT (current EL), IL = 32 bits
[  265.729126]   SET = 0, FnV = 0
[  265.732195]   EA = 0, S1PTW = 0
[  265.735351] Data abort info:
[  265.738227]   ISV = 0, ISS = 0x00000047
[  265.742071]   CM = 0, WnR = 1
[  265.745055] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000009b54000
[  265.751753] [ffff800054627000] pgd=0000202ffffff003, p4d=0000202ffffff003, pud=00002020020eb003, pmd=00000020a0dfc003, pte=0000000000000000
[  265.764314] Internal error: Oops: 96000047 [#1] SMP
[  265.830357] CPU: 61 PID: 20319 Comm: bash Not tainted 5.9.0+ #206
[  265.836423] Hardware name: Huawei TaiShan 2280 V2/BC82AMDDA, BIOS 1.05 09/18/2019
[  265.843873] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO BTYPE=--)
[  265.843890] pc : hclgevf_cmd_uninit+0xbc/0x300
[  265.861988] lr : hclgevf_cmd_uninit+0xb0/0x300
[  265.861992] sp : ffff80004c983b50
[  265.881411] pmr_save: 000000e0
[  265.884453] x29: ffff80004c983b50 x28: ffff20280bbce500
[  265.889744] x27: 0000000000000000 x26: 0000000000000000
[  265.895034] x25: ffff800011a1f000 x24: ffff800011a1fe90
[  265.900325] x23: ffff0020ce9b00d8 x22: ffff0020ce9b0150
[  265.905616] x21: ffff800010d70e90 x20: ffff800010d70e90
[  265.910906] x19: ffff0020ce9b0080 x18: 0000000000000004
[  265.916198] x17: 0000000000000000 x16: ffff800011ae32e8
[  265.916201] x15: 0000000000000028 x14: 0000000000000002
[  265.916204] x13: ffff800011ae32e8 x12: 0000000000012ad8
[  265.946619] x11: ffff80004c983b50 x10: 0000000000000000
[  265.951911] x9 : ffff8000115d0888 x8 : 0000000000000000
[  265.951914] x7 : ffff800011890b20 x6 : c0000000ffff7fff
[  265.951917] x5 : ffff80004c983930 x4 : 0000000000000001
[  265.951919] x3 : ffffa027eec1b000 x2 : 2b78ccbbff369100
[  265.964487] x1 : 0000000000000000 x0 : ffff800054627000
[  265.964491] Call trace:
[  265.964494]  hclgevf_cmd_uninit+0xbc/0x300
[  265.964496]  hclgevf_uninit_ae_dev+0x9c/0xe8
[  265.964501]  hnae3_unregister_ae_dev+0xb0/0x130
[  265.964516]  hns3_remove+0x34/0x88 [hns3]
[  266.009683]  pci_device_remove+0x48/0xf0
[  266.009692]  device_release_driver_internal+0x114/0x1e8
[  266.030058]  device_driver_detach+0x28/0x38
[  266.034224]  unbind_store+0xd4/0x108
[  266.037784]  drv_attr_store+0x40/0x58
[  266.041435]  sysfs_kf_write+0x54/0x80
[  266.045081]  kernfs_fop_write+0x12c/0x250
[  266.049076]  vfs_write+0xc4/0x248
[  266.052378]  ksys_write+0x74/0xf8
[  266.055677]  __arm64_sys_write+0x24/0x30
[  266.059584]  el0_svc_common.constprop.3+0x84/0x270
[  266.064354]  do_el0_svc+0x34/0xa0
[  266.067658]  el0_svc+0x38/0x40
[  266.070700]  el0_sync_handler+0x8c/0xb0
[  266.074519]  el0_sync+0x140/0x180

It looks like the BAR memory region had already been unmapped before we
start clearing CMDQ registers in it, which is pretty bad and the kernel
happily kills itself because of a Current EL Data Abort (on arm64).

Moving the CMDQ uninitialization a bit early fixes the issue for me.

Fixes: 862d969a3a ("net: hns3: do VF's pci re-initialization while PF doing FLR")
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20201023051550.793-1-yuzenghui@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-26 20:25:04 -07:00
Huazhong Tan fe735c84be net: hns3: Add RoCE VF reset support
Add RoCE VF client reset support by notifying the RoCE VF client
when hns3 VF is resetting and adding a interface to query whether
CMDQ is ready to work.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-29 13:14:24 -07:00
Guangbin Huang 1329702899 net: hns3: add a check for device specifications queried from firmware
The device specifications querying is unsupported by the old
firmware, in this case, these specifications are 0. However,
some specifications should not be 0 or will cause problem.

So after querying from firmware, some device specifications
are needed to check their value and set to default value if
their values are 0.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27 13:25:22 -07:00
Guangbin Huang af2aedc572 net: hns3: add support to query device specifications
To improve code maintainability and compatibility, new commands
HCLGE_OPC_QUERY_DEV_SPECS for PF and HCLGEVF_OPC_QUERY_DEV_SPECS
for VF are introduced to query device specifications, instead of
statically defining specifications by checking the hardware version
or other methods.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27 13:25:22 -07:00
Guangbin Huang 4cc86cb58a net: hns3: use capabilities queried from firmware
In order to improve code maintainability and compatibility, the
capabilities of new features are queried from firmware.

The member flag in struct hnae3_ae_dev indicates not only
capabilities, but some initialized status. As capabilities bits
queried from firmware is too many, it is better to use new member
to indicate them. So adds member capabs in struce hnae3_ae_dev.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27 13:25:22 -07:00
Guangbin Huang ca850f2b0e net: hns3: add support to query device capability
In order to improve code maintainability and compatibility,
add support to query the device capability by expanding the
existing version query command. The device capability refers
to the features supported by the device.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27 13:25:22 -07:00
Guangbin Huang 295ba232a8 net: hns3: add device version to replace pci revision
To better identify the device version, struct hnae3_handle adds a
member dev_version to replace pci revision. The dev_version consists
of hardware version and PCI revision. The hardware version is queried
from firmware by an existing firmware version query command.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27 13:25:22 -07:00
Guangbin Huang c155e22bb6 net: hns3: rename macro of pci device id of vf
VF devices do not have speed division, its speed is depended on its PF.
So macro name of PCI device id of VF is incorrent to have 100G info, it
should be renamed by removing 100G info.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24 20:19:25 -07:00
Yufeng Mo 9d8d5a360b net: hns3: remove unnecessary variable initialization
If a variable is assigned a value before it is used, it's no
need to assign an initial value to the variable. So remove
these redundant operations.

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>
2020-09-24 20:19:24 -07:00
Qinglang Miao f621df96ac net: hns3: simplify the return expression of hclgevf_client_start()
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-21 13:44:54 -07:00
Guangbin Huang e639436339 net: hns3: skip periodic service task if reset failed
When reset fails, if there are some pending jobs for the periodic
service task, it does not do anything except print error each
time the task is scheduled. So skip the periodic service task if
reset failed.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-08 19:51:40 -07:00
Huazhong Tan d41884eecd net: hns3: narrow two local variable range in hclgevf_reset_prepare_wait()
Since variable send_msg and ret only used in if branch, so move
their definition into the if branch.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-08 19:51:40 -07:00
Colin Ian King 8912fd6a61 net: hns3: fix spelling mistake "could'nt" -> "couldn't"
There is a spelling mistake in a dev_err message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-06 12:05:40 -07:00
Guojia Liao b7b5d25bdd net: hns3: fix for VLAN config when reset failed
When device is resetting or reset failed, firmware is unable to
handle mailbox. VLAN should not be configured in this case.

Fixes: fe4144d47e ("net: hns3: sync VLAN filter entries when kill VLAN ID failed")
Signed-off-by: Guojia Liao <liaoguojia@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 12:54:48 -07:00
Jian Shen a6f7bfdc78 net: hns3: add reset check for VF updating port based VLAN
Currently hclgevf_update_port_base_vlan_info() may be called when
VF is resetting,  which may cause hns3_nic_net_open() being called
twice unexpectedly.

So fix it by adding a reset check for it, and extend critical
region for rntl_lock in hclgevf_update_port_base_vlan_info().

Fixes: 92f11ea177 ("net: hns3: fix set port based VLAN issue for VF")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 12:54:48 -07:00
Huazhong Tan cddd564892 net: hns3: fix for mishandle of asserting VF reset fail
When asserts VF reset fail, flag HCLGEVF_STATE_CMD_DISABLE
and handshake status should not set, otherwise the retry will
fail. So adds a check for asserting VF reset and returns
directly when fails.

Fixes: ef5f8e507e ("net: hns3: stop handling command queue while resetting VF")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-06 12:33:28 -07:00
Huazhong Tan 2adb8187e5 net: hns3: fix two coding style issues in hclgevf_main.c
Remove a redundant blank line in hclgevf_cmd_set_promisc_mode(),
and fix a reverse xmas tree coding style issue in
hclgevf_set_rss_tc_mode().

Reported-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30 17:41:22 -07:00
Huazhong Tan ec4d939220 net: hns3: fix an incorrect comment for num_tqps in struct hclgevf_dev
struct hclgevf_dev stands for VF device, its field num_tqps
indicates the number of VF's task queue pairs, so the comment
is incorrect, replace 'PF' with 'VF'.

Reported-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30 17:41:22 -07:00
Huazhong Tan fc68aed156 net: hns3: remove two unused macros in hclgevf_cmd.c
Macro hclgevf_ring_to_dma_dir and hclgevf_is_csq defined in
hclgevf_cmd.c, but not used, so remove them.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30 17:41:22 -07:00
Huazhong Tan 9cee2e8d30 net: hns3: remove two duplicated register macros in hclgevf_main.h
HCLGEVF_CMDQ_INTR_SRC_REG and HCLGEVF_CMDQ_INTR_STS_REG are same
as HCLGEVF_VECTOR0_CMDQ_SRC_REG and HCLGEVF_VECTOR0_CMDQ_STAT_REG,
replace the former with the latter, and rename macro
HCLGEVF_VECTOR0_CMDQ_STAT_REG since 'stat' is not abbreviation of
'state'.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Huazhong Tan fb9e44d63d net: hns3: modify an incorrect type in struct hclgevf_cfg_gro_status_cmd
Modify field .gro_en in struct hclgevf_cfg_gro_status_cmd to u8
according to the UM, otherwise, it will overwrite the reserved
byte which may be used for other purpose.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Guangbin Huang 4cd5beaa89 net: hns3: add a resetting check in hclgevf_init_nic_client_instance()
To prevent from initializing VF NIC client in reset handling state,
this patch adds resetting check in hclgevf_init_nic_client_instance().

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-27 14:56:08 -07:00
Jian Shen 039ba863e8 net: hns3: optimize the filter table entries handling when resetting
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: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-25 20:29:44 -07:00
Jian Shen c631c69682 net: hns3: refactor the promisc mode setting
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: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-25 20:29:44 -07:00
Jian Shen ee4bcd3b7a net: hns3: refactor the MAC address configure
Currently, the HNS3 driver sync and unsync MAC address in function
hns3_set_rx_mode(). For PF, it adds and deletes MAC address directly
in the path of dev_set_rx_mode(). If failed, it won't retry until
next calling of hns3_set_rx_mode(). On the other hand, if request
add and remove a same address many times at a short interval, each
request must be done one by one, can't be merged. For VF, it sends
mailbox messages to PF to request adding or deleting MAC address in
the path of function hns3_set_rx_mode(), no matter the address is
configured success.

This patch refines it by recording the MAC address in function
hns3_set_rx_mode(), and updating MAC address in the service task.
If failed, it will retry by the next calling of periodical service
task. It also uses some state to mark the state of each MAC address
in the MAC list, which can help merge configure request for a same
address. With these changes, when global reset or IMP reset occurs,
we can restore the MAC table with the MAC list.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-25 20:29:44 -07:00
Yufeng Mo d8355240cf net: hns3: add trace event support for PF/VF mailbox
This patch adds trace event support for PF/VF mailbox.

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>
2020-04-20 12:49:18 -07:00
David S. Miller 5a470b1a63 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-30 20:48:43 -07:00
Guojia Liao 944de4847a net: hns3: fix RSS config lost after VF reset.
Currently, VF's RSS configuration would be set to default
after VF reset, the the user's one will loss.

To fix it, this patch separates hclgevf_rss_init_hw() into
two parts, one sets up the default RSS configuration and
just be called when driver loading, one configures the hardware
and be called by driver loading or reset.

Fixes: d97b307213 ("net: hns3: Add RSS tuples support for VF")
Signed-off-by: Guojia Liao <liaoguojia@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 10:57:53 -07:00
Yunsheng Lin 16deaef205 net: hns3: drop the WQ_MEM_RECLAIM flag when allocating WQ
The WQ in hns3 driver is allocated with WQ_MEM_RECLAIM flag
in order to guarantee forward progress, which may cause hns3'
WQ_MEM_RECLAIM WQ flushing infiniband' !WQ_MEM_RECLAIM WQ
warning:

[11246.200168] hns3 0000:bd:00.1: Reset done, hclge driver initialization finished.
[11246.209979] hns3 0000:bd:00.1 eth7: net open
[11246.227608] ------------[ cut here ]------------
[11246.237370] workqueue: WQ_MEM_RECLAIM hclge:hclge_service_task [hclge] is flushing !WQ_MEM_RECLAIM infiniband:0x0
[11246.237391] WARNING: CPU: 50 PID: 2279 at ./kernel/workqueue.c:2605 check_flush_dependency+0xcc/0x140
[11246.260412] Modules linked in: hclgevf hns_roce_hw_v2 rdma_test(O) hns3 xt_CHECKSUM iptable_mangle xt_conntrack ipt_REJECT nf_reject_ipv4 ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bpfilter vfio_iommu_type1 vfio_pci vfio_virqfd vfio ib_isert iscsi_target_mod ib_ipoib ib_umad rpcrdma ib_iser libiscsi scsi_transport_iscsi aes_ce_blk crypto_simd cryptd aes_ce_cipher sunrpc nls_iso8859_1 crct10dif_ce ghash_ce sha2_ce sha256_arm64 sha1_ce joydev input_leds hid_generic usbkbd usbmouse sbsa_gwdt usbhid usb_storage hid ses hclge hisi_zip hisi_hpre hisi_sec2 hnae3 hisi_qm ahci hisi_trng_v2 evbug uacce rng_core gpio_dwapb autofs4 hisi_sas_v3_hw megaraid_sas hisi_sas_main libsas scsi_transport_sas [last unloaded: hns_roce_hw_v2]
[11246.325742] CPU: 50 PID: 2279 Comm: kworker/50:0 Kdump: loaded Tainted: G           O      5.4.0-rc4+ #1
[11246.335181] Hardware name: Huawei TaiShan 200 (Model 2280)/BC82AMDD, BIOS 2280-V2 CS V3.B140.01 12/18/2019
[11246.344802] Workqueue: hclge hclge_service_task [hclge]
[11246.350007] pstate: 60c00009 (nZCv daif +PAN +UAO)
[11246.354779] pc : check_flush_dependency+0xcc/0x140
[11246.359549] lr : check_flush_dependency+0xcc/0x140
[11246.364317] sp : ffff800268a73990
[11246.367618] x29: ffff800268a73990 x28: 0000000000000001
[11246.372907] x27: ffffcbe4f5868000 x26: ffffcbe4f5541000
[11246.378196] x25: 00000000000000b8 x24: ffff002fdd0ff868
[11246.383483] x23: ffff002fdd0ff800 x22: ffff2027401ba600
[11246.388770] x21: 0000000000000000 x20: ffff002fdd0ff800
[11246.394059] x19: ffff202719293b00 x18: ffffcbe4f5541948
[11246.399347] x17: 000000006f8ad8dd x16: 0000000000000002
[11246.404634] x15: ffff8002e8a734f7 x14: 6c66207369205d65
[11246.409922] x13: 676c63685b206b73 x12: 61745f6563697672
[11246.415208] x11: 65735f65676c6368 x10: 3a65676c6368204d
[11246.420494] x9 : 49414c4345525f4d x8 : 6e6162696e69666e
[11246.425782] x7 : 69204d49414c4345 x6 : ffffcbe4f5765145
[11246.431068] x5 : 0000000000000000 x4 : 0000000000000000
[11246.436355] x3 : 0000000000000030 x2 : 00000000ffffffff
[11246.441642] x1 : 3349eb1ac5310100 x0 : 0000000000000000
[11246.446928] Call trace:
[11246.449363]  check_flush_dependency+0xcc/0x140
[11246.453785]  flush_workqueue+0x110/0x410
[11246.457691]  ib_cache_cleanup_one+0x54/0x468
[11246.461943]  __ib_unregister_device+0x70/0xa8
[11246.466279]  ib_unregister_device+0x2c/0x40
[11246.470455]  hns_roce_exit+0x34/0x198 [hns_roce_hw_v2]
[11246.475571]  __hns_roce_hw_v2_uninit_instance.isra.56+0x3c/0x58 [hns_roce_hw_v2]
[11246.482934]  hns_roce_hw_v2_reset_notify+0xd8/0x210 [hns_roce_hw_v2]
[11246.489261]  hclge_notify_roce_client+0x84/0xe0 [hclge]
[11246.494464]  hclge_reset_rebuild+0x60/0x730 [hclge]
[11246.499320]  hclge_reset_service_task+0x400/0x5a0 [hclge]
[11246.504695]  hclge_service_task+0x54/0x698 [hclge]
[11246.509464]  process_one_work+0x15c/0x458
[11246.513454]  worker_thread+0x144/0x520
[11246.517186]  kthread+0xfc/0x128
[11246.520314]  ret_from_fork+0x10/0x18
[11246.523873] ---[ end trace eb980723699c2585 ]---
[11246.528710] hns3 0000:bd:00.2: Func clear success after reset.
[11246.528747] hns3 0000:bd:00.0: Func clear success after reset.
[11246.907710] hns3 0000:bd:00.1 eth7: link up

According to [1] and [2]:

There seems to be no specific guidance about how to handling the
forward progress guarantee of network device's WQ yet, and other
network device's WQ seem to be marked with WQ_MEM_RECLAIM without
a clear reason.

So this patch removes the WQ_MEM_RECLAIM flag when allocating WQ
to aviod the above warning.

1. https://www.spinics.net/lists/netdev/msg631646.html
2. https://www.spinics.net/lists/netdev/msg632097.html

Fixes: 0ea6890225 ("net: hns3: allocate WQ with WQ_MEM_RECLAIM flag")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 10:57:53 -07:00
Huazhong Tan bb5790b71b net: hns3: refactor mailbox response scheme between PF and VF
Currently, PF responds to VF depending on what mailbox it is
handling, it is a bit inflexible. The correct way is, PF should
check the mbx_need_resp field to decide whether gives response
to VF.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-21 20:22:25 -07:00
Yufeng Mo d341001846 net: hns3: refactor the mailbox message between PF and VF
For making the code more readable, this adds several new
structure to replace the msg field in structure
hclge_mbx_vf_to_pf_cmd and hclge_mbx_pf_to_vf_cmd.
Also uses macro to instead of some magic number.

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>
2020-03-21 20:22:25 -07:00
Jian Shen 027fd53160 net: hns3: add a conversion for mailbox's response code
Currently, when mailbox handling fails, the PF driver
just responds 1 to the VF driver. It is not sufficient
for the VF driver to find out why its mailbox fails.

So the error should be responded to VF, but the error
is type int and the response field in struct
hclge_mbx_pf_to_vf_cmd is type u16, a conversion is
needed.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-21 20:22:25 -07:00
David S. Miller 1d34357931 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Minor overlapping changes, nothing serious.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12 22:34:48 -07:00
Jian Shen 23b4201dea net: hns3: fix VF VLAN table entries inconsistent issue
Currently, if VF is loaded on the host side, the host doesn't
clear the VF's VLAN table entries when VF removing. In this
case, when doing reset and disabling sriov at the same time the
VLAN device over VF will be removed, but the VLAN table entries
in hardware are remained.

This patch fixes it by asking PF to clear the VLAN table entries for
VF when VF is removing. It also clears the VLAN table full bit
after VF VLAN table entries being cleared.

Fixes: c6075b1934 ("net: hns3: Record VF vlan tables")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12 11:38:26 -07:00
Huazhong Tan e45afb396e net: hns3: print out status register when VF receives unknown source interrupt
When received an unknown vector 0 interrupt, there is not a
helpful information for user to realize that now. So this patch
prints out the value of the status register for this case, and
uses dev_info() instead of dev_dbg() in hclge_check_event_cause().

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-09 19:36:13 -07:00
Huazhong Tan 60df7e91cc net: hns3: cleanup some coding style issue
This patch removes some unnecessary return value assignments,
some duplicated printing in the caller, refines the judgment
of 0 and uses le16_to_cpu to replace __le16_to_cpu.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-21 11:46:21 +01:00
Guangbin Huang e310532984 net: hns3: delete unnecessary blank line and space for cleanup
This patch deletes some unnecessary blank lines and spaces to clean up
code, and in hclgevf_set_vlan_filter() moves the comment to the front
of hclgevf_send_mbx_msg().

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-21 11:46:21 +01:00
Huazhong Tan afb6afdb8d net: hns3: set VF's default reset_type to HNAE3_NONE_RESET
reset_type means what kind of reset the driver is handling now,
so after initializing or reset, the reset_type of VF should be
set to HNAE3_NONE_RESET, otherwise, this unknown default value
may be a little misleading when the device is running.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-21 11:46:20 +01:00
Huazhong Tan f28368bb45 net: hns3: refactor the procedure of VF FLR
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: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-11 14:52:22 -08:00
Huazhong Tan 1cc9bc6e58 net: hns3: split hclgevf_reset() into preparing and rebuilding part
hclgevf_reset() is a little bloated, and the process of VF FLR will
be separated from the reset task later. So this patch splits
hclgevf_reset() into hclgevf_reset_prepare() and hclge_reset_rebuild(),
then FLR can also reuse these two functions. Also moves HNAE3_UP_CLIENT
into hclgevf_reset_stack().

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-11 14:52:22 -08:00
Yonglong Liu f97c4d823f net: hns3: modify the IRQ name of misc vectors
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: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-06 13:26:25 -08:00