Commit Graph

1002 Commits

Author SHA1 Message Date
Yunsheng Lin
2566f10676 net: hns3: fix for vport->bw_limit overflow problem
When setting vport->bw_limit to hdev->tm_info.pg_info[0].bw_limit
in hclge_tm_vport_tc_info_update, vport->bw_limit can be as big as
HCLGE_ETHER_MAX_RATE (100000), which can not fit into u16 (65535).

So this patch fixes it by using u32 for vport->bw_limit.

Fixes: 848440544b ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
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>
2019-04-15 13:39:19 -07:00
Jian Shen
8a9a654b5b net: hns3: fix sparse: warning when calling hclge_set_vlan_filter_hw()
The input parameter "proto" in function hclge_set_vlan_filter_hw()
is asked to be __be16, but got u16 when calling it in function
hclge_update_port_base_vlan_cfg().

This patch fixes it by converting it with htons().

Reported-by: kbuild test robot <lkp@intel.com>
Fixes: 21e043cd81 ("net: hns3: fix set port based VLAN for PF")
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>
2019-04-15 13:39:19 -07:00
Peng Li
6814b5900b net: hns3: code optimization for command queue' spin lock
This patch removes some redundant BH disable when initializing
and uninitializing command queue.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-14 13:47:35 -07:00
Peng Li
cc5ff6e90f net: hns3: free the pending skb when clean RX ring
If there is pending skb in RX flow when close the port, and the
pending buffer is not cleaned, the new packet will be added to
the pending skb when the port opens again, and the first new
packet has error data.

This patch cleans the pending skb when clean RX ring.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-14 13:47:35 -07:00
Jian Shen
2d0075b4a7 net: hns3: do not initialize MDIO bus when PHY is inexistent
For some cases, PHY may not be connected to MDIO bus, then
the driver will initialize fail since MDIO bus initialization
fails.

This patch fixes it by skipping the MDIO bus initialization
when PHY is inexistent.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-14 13:47:35 -07:00
Weihang Li
c41e672d1e net: hns3: set dividual reset level for all RAS and MSI-X errors
According to hardware description, reset level that should be
triggered are not consistent in a module. For example, in SSU
common errors, the first two bits has no need to do reset,
but the other bits need global reset.

This patch sets separate reset level for all RAS and MSI-X
interrupts by adding a reset_lvel field in struct hclge_hw_error,
and fixes some incorrect reset level.

Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-14 13:47:35 -07:00
Yunsheng Lin
1a49f3c614 net: hns3: divide shared buffer between TC
Currently hardware may have not enough buffer to receive packet
when it has used more than two MPS(maximum packet size) of
buffer, but there are still a lot of shared buffer left unused
when TC num is small.

This patch divides shared buffer to be used between TC when
the port supports DCB, and adjusts the waterline and threshold
according to user manual for the port that does not support
DCB.

This patch also change hclge_get_tc_num's return type to u32
to avoid signed-unsigned mix with divide.

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>
2019-04-14 13:47:35 -07:00
Yunsheng Lin
db5936db8f net: hns3: always assume no drop TC for performance reason
Currently RX shared buffer' threshold size for speific TC is
set to smaller value when the TC's PFC is not enabled, which may
cause performance problem because hardware may not have enough
hardware buffer when PFC is not enabled.

This patch sets the same threshold size for all TC no matter if
the specific TC's PFC is enabled.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-14 13:47:35 -07:00
Yunsheng Lin
d474d88f88 net: hns3: add hns3_gro_complete for HW GRO process
When a GRO packet is received by driver, the cwr field in the
struct tcphdr needs to be checked to decide whether to set the
SKB_GSO_TCP_ECN for skb_shinfo(skb)->gso_type.

So this patch adds hns3_gro_complete to do that, and adds the
hns3_handle_bdinfo to handle the hns3_gro_complete and
hns3_rx_checksum.

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>
2019-04-14 13:47:35 -07:00
Yunsheng Lin
a4d2cdcbb8 net: hns3: minor refactor for hns3_rx_checksum
Change the parameters of hns3_rx_checksum to be more specific to
what is used internally, rather than passing in a pointer to the
whole hns3_desc. Reduces duplicate code and bring this function
inline with the approach used in hns3_set_gro_param.

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>
2019-04-14 13:47:35 -07:00
Jian Shen
92f11ea177 net: hns3: fix set port based VLAN issue for VF
In original codes, ndo_set_vf_vlan() in hns3 driver was implemented
wrong. It adds or removes VLAN into VLAN filter for VF, but VF is
unaware of it.

This patch fixes it. When VF loads up, it firstly queries the port
based VLAN state from PF. When user change port based VLAN state
from PF, PF firstly checks whether the VF is alive. If the VF is
alive, then PF notifies the VF the modification; otherwise PF
configure the port based VLAN state directly.

Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
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>
2019-04-14 13:47:35 -07:00
Jian Shen
21e043cd81 net: hns3: fix set port based VLAN for PF
In original codes, ndo_set_vf_vlan() in hns3 driver was implemented
wrong. It adds or removes VLAN into VLAN filter for VF, but VF is
unaware of it.

Indeed, ndo_set_vf_vlan() is expected to enable or disable port based
VLAN (hardware inserts a specified VLAN tag to all TX packets for a
specified VF) . When enable port based VLAN, we use port based VLAN id
as VLAN filter entry. When disable port based VLAN, we use VLAN id of
VLAN device.

This patch fixes it for PF, enable/disable port based VLAN when calls
ndo_set_vf_vlan().

Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
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>
2019-04-14 13:47:34 -07:00
Jian Shen
44e626f720 net: hns3: fix VLAN offload handle for VLAN inserted by port
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: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-14 13:47:34 -07:00
Jian Shen
741fca1667 net: hns3: modify VLAN initialization to be compatible with port based VLAN
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: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-14 13:47:34 -07:00
Huazhong Tan
e233516e6a net: hns3: fix keep_alive_timer not stop problem
When hclgevf_client_start() fails or VF driver unloaded, there is
nobody to disable keep_alive_timer.

So this patch fixes them.

Fixes: a6d818e31d ("net: hns3: Add vport alive state checking support")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
7d60070668 net: hns3: remove resetting check in hclgevf_reset_task_schedule
The checking of HCLGEVF_STATE_RST_HANDLING flag in the
hclgevf_reset_task_schedule() will make some scheduling of
reset pending fail. This flag will be checked in the
hclgevf_reset_service_task(), it is unnecessary to check it
in the hclgevf_reset_task_schedule(). So this patch removes it.

Fixes: 35a1e50343 ("net: hns3: Add VF Reset Service Task to support event handling")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
4339ef396a net: hns3: add error handler for initializing command queue
This patch adds error handler for the failure of command queue
initialization both PF and VF.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
18e2488881 net: hns3: stop mailbox handling when command queue need re-init
If the command queue needs re-initialization, the mailbox handling
task should do nothing, otherwise this task will just get some error
print.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
cf1f212916 net: hns3: handle pending reset while reset fail
The ongoing lower-level reset will fail when there is a higher-level
reset occurs, so the error handler should deal with this situation.

Fixes: 6a5f6fa382 ("net: hns3: add error handler for hclgevf_reset()")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
4f765d3e52 net: hns3: do not request reset when hardware resetting
When hardware reset does not finish, the driver should not
request a new reset, otherwise the ongoing hardware reset
will get problem.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
0fdf4d304c net: hns3: ignore lower-level new coming reset
It is unnecessary to deal with the new coming reset if
it is lower than the ongoing one.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
056cbab332 net: hns3: deactive the reset timer when reset successfully
If the reset has been done successfully, the ongoing reset timer
is unnecessary.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
eb32c896f1 net: hns3: adjust the timing of hns3_client_stop when unloading
hns3_client_stop() should be called after unregister_netdev(),
otherwise the ongoing reset task may start the client just after it.

Fixes: a6d818e31d ("net: hns3: Add vport alive state checking support")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
cc645dfa89 net: hns3: not reset vport who not alive when PF reset
If a vport is not alive, it is unnecessary to notify it to reset
before PF asserting a reset. So before inform vport to reset,
we need to check its alive state firstly.

Fixes: aa5c4f175b ("net: hns3: add reset handling for VF when doing PF reset")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
cd513a6975 net: hns3: set up the vport alive state while reinitializing
When reinitializing, the vport alive state needs to be set up.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Huazhong Tan
0f14c5b1a9 net: hns3: set vport alive state to default while resetting
When resetting, the vport alive state should be set to default,
otherwise the alive state of the vport whose driver not running
is wrong before the timer to check it out.

Fixes: a6d818e31d ("net: hns3: Add vport alive state checking support")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 15:30:49 -07:00
Colin Ian King
ea401685a2 net: hns: fix unsigned comparison to less than zero
Currently mskid is unsigned and hence comparisons with negative
error return values are always false. Fix this by making mskid an
int.

Fixes: f058e46855 ("net: hns: fix ICMP6 neighbor solicitation messages discard problem")
Addresses-Coverity: ("Operands don't affect result")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-06 18:29:14 -07:00
David S. Miller
f83f715195 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor comment merge conflict in mlx5.

Staging driver has a fixup due to the skb->xmit_more changes
in 'net-next', but was removed in 'net'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-05 14:14:19 -07:00
Yonglong Liu
15400663ab net: hns: Fix sparse: some warnings in HNS drivers
There are some sparse warnings in the HNS drivers:

warning: incorrect type in assignment (different address spaces)
    expected void [noderef] <asn:2> *io_base
    got void *vaddr
warning: cast removes address space '<asn:2>' of expression
[...]

Add __iomem and change all the u8 __iomem to void __iomem to
fix these kind of  warnings.

warning: incorrect type in argument 1 (different address spaces)
    expected void [noderef] <asn:2> *base
    got unsigned char [usertype] *base_addr
warning: cast to restricted __le16
warning: incorrect type in assignment (different base types)
    expected unsigned int [usertype] tbl_tcam_data_high
    got restricted __le32 [usertype]
warning: cast to restricted __le32
[...]

These variables used u32/u16 as their type, and finally as a
parameter of writel(), writel() will do the cpu_to_le32 coversion
so remove the little endian covert code to fix these kind of warnings.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:35:42 -07:00
Yonglong Liu
8601a99d7c net: hns: Fix WARNING when remove HNS driver with SMMU enabled
When enable SMMU, remove HNS driver will cause a WARNING:

[  141.924177] WARNING: CPU: 36 PID: 2708 at drivers/iommu/dma-iommu.c:443 __iommu_dma_unmap+0xc0/0xc8
[  141.954673] Modules linked in: hns_enet_drv(-)
[  141.963615] CPU: 36 PID: 2708 Comm: rmmod Tainted: G        W         5.0.0-rc1-28723-gb729c57de95c-dirty #32
[  141.983593] Hardware name: Huawei D05/D05, BIOS Hisilicon D05 UEFI Nemo 1.8 RC0 08/31/2017
[  142.000244] pstate: 60000005 (nZCv daif -PAN -UAO)
[  142.009886] pc : __iommu_dma_unmap+0xc0/0xc8
[  142.018476] lr : __iommu_dma_unmap+0xc0/0xc8
[  142.027066] sp : ffff000013533b90
[  142.033728] x29: ffff000013533b90 x28: ffff8013e6983600
[  142.044420] x27: 0000000000000000 x26: 0000000000000000
[  142.055113] x25: 0000000056000000 x24: 0000000000000015
[  142.065806] x23: 0000000000000028 x22: ffff8013e66eee68
[  142.076499] x21: ffff8013db919800 x20: 0000ffffefbff000
[  142.087192] x19: 0000000000001000 x18: 0000000000000007
[  142.097885] x17: 000000000000000e x16: 0000000000000001
[  142.108578] x15: 0000000000000019 x14: 363139343a70616d
[  142.119270] x13: 6e75656761705f67 x12: 0000000000000000
[  142.129963] x11: 00000000ffffffff x10: 0000000000000006
[  142.140656] x9 : 1346c1aa88093500 x8 : ffff0000114de4e0
[  142.151349] x7 : 6662666578303d72 x6 : ffff0000105ffec8
[  142.162042] x5 : 0000000000000000 x4 : 0000000000000000
[  142.172734] x3 : 00000000ffffffff x2 : ffff0000114de500
[  142.183427] x1 : 0000000000000000 x0 : 0000000000000035
[  142.194120] Call trace:
[  142.199030]  __iommu_dma_unmap+0xc0/0xc8
[  142.206920]  iommu_dma_unmap_page+0x20/0x28
[  142.215335]  __iommu_unmap_page+0x40/0x60
[  142.223399]  hnae_unmap_buffer+0x110/0x134
[  142.231639]  hnae_free_desc+0x6c/0x10c
[  142.239177]  hnae_fini_ring+0x14/0x34
[  142.246540]  hnae_fini_queue+0x2c/0x40
[  142.254080]  hnae_put_handle+0x38/0xcc
[  142.261619]  hns_nic_dev_remove+0x54/0xfc [hns_enet_drv]
[  142.272312]  platform_drv_remove+0x24/0x64
[  142.280552]  device_release_driver_internal+0x17c/0x20c
[  142.291070]  driver_detach+0x4c/0x90
[  142.298259]  bus_remove_driver+0x5c/0xd8
[  142.306148]  driver_unregister+0x2c/0x54
[  142.314037]  platform_driver_unregister+0x10/0x18
[  142.323505]  hns_nic_dev_driver_exit+0x14/0xf0c [hns_enet_drv]
[  142.335248]  __arm64_sys_delete_module+0x214/0x25c
[  142.344891]  el0_svc_common+0xb0/0x10c
[  142.352430]  el0_svc_handler+0x24/0x80
[  142.359968]  el0_svc+0x8/0x7c0
[  142.366104] ---[ end trace 60ad1cd58e63c407 ]---

The tx ring buffer map when xmit and unmap when xmit done. So in
hnae_init_ring() did not map tx ring buffer, but in hnae_fini_ring()
have a unmap operation for tx ring buffer, which is already unmapped
when xmit done, than cause this WARNING.

The hnae_alloc_buffers() is called in hnae_init_ring(),
so the hnae_free_buffers() should be in hnae_fini_ring(), not in
hnae_free_desc().

In hnae_fini_ring(), adds a check is_rx_ring() as in hnae_init_ring().
When the ring buffer is tx ring, adds a piece of code to ensure that
the tx ring is unmap.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:35:42 -07:00
Yonglong Liu
f058e46855 net: hns: fix ICMP6 neighbor solicitation messages discard problem
ICMP6 neighbor solicitation messages will be discard by the Hip06
chips, because of not setting forwarding pool. Enable promisc mode
has the same problem.

This patch fix the wrong forwarding table configs for the multicast
vague matching when enable promisc mode, and add forwarding pool
for the forwarding table.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:35:42 -07:00
Yonglong Liu
c0b0984426 net: hns: Fix probabilistic memory overwrite when HNS driver initialized
When reboot the system again and again, may cause a memory
overwrite.

[   15.638922] systemd[1]: Reached target Swap.
[   15.667561] tun: Universal TUN/TAP device driver, 1.6
[   15.676756] Bridge firewalling registered
[   17.344135] Unable to handle kernel paging request at virtual address 0000000200000040
[   17.352179] Mem abort info:
[   17.355007]   ESR = 0x96000004
[   17.358105]   Exception class = DABT (current EL), IL = 32 bits
[   17.364112]   SET = 0, FnV = 0
[   17.367209]   EA = 0, S1PTW = 0
[   17.370393] Data abort info:
[   17.373315]   ISV = 0, ISS = 0x00000004
[   17.377206]   CM = 0, WnR = 0
[   17.380214] user pgtable: 4k pages, 48-bit VAs, pgdp = (____ptrval____)
[   17.386926] [0000000200000040] pgd=0000000000000000
[   17.391878] Internal error: Oops: 96000004 [#1] SMP
[   17.396824] CPU: 23 PID: 95 Comm: kworker/u130:0 Tainted: G            E     4.19.25-1.2.78.aarch64 #1
[   17.414175] Hardware name: Huawei TaiShan 2280 /BC11SPCD, BIOS 1.54 08/16/2018
[   17.425615] Workqueue: events_unbound async_run_entry_fn
[   17.435151] pstate: 00000005 (nzcv daif -PAN -UAO)
[   17.444139] pc : __mutex_lock.isra.1+0x74/0x540
[   17.453002] lr : __mutex_lock.isra.1+0x3c/0x540
[   17.461701] sp : ffff000100d9bb60
[   17.469146] x29: ffff000100d9bb60 x28: 0000000000000000
[   17.478547] x27: 0000000000000000 x26: ffff802fb8945000
[   17.488063] x25: 0000000000000000 x24: ffff802fa32081a8
[   17.497381] x23: 0000000000000002 x22: ffff801fa2b15220
[   17.506701] x21: ffff000009809000 x20: ffff802fa23a0888
[   17.515980] x19: ffff801fa2b15220 x18: 0000000000000000
[   17.525272] x17: 0000000200000000 x16: 0000000200000000
[   17.534511] x15: 0000000000000000 x14: 0000000000000000
[   17.543652] x13: ffff000008d95db8 x12: 000000000000000d
[   17.552780] x11: ffff000008d95d90 x10: 0000000000000b00
[   17.561819] x9 : ffff000100d9bb90 x8 : ffff802fb89d6560
[   17.570829] x7 : 0000000000000004 x6 : 00000004a1801d05
[   17.579839] x5 : 0000000000000000 x4 : 0000000000000000
[   17.588852] x3 : ffff802fb89d5a00 x2 : 0000000000000000
[   17.597734] x1 : 0000000200000000 x0 : 0000000200000000
[   17.606631] Process kworker/u130:0 (pid: 95, stack limit = 0x(____ptrval____))
[   17.617438] Call trace:
[   17.623349]  __mutex_lock.isra.1+0x74/0x540
[   17.630927]  __mutex_lock_slowpath+0x24/0x30
[   17.638602]  mutex_lock+0x50/0x60
[   17.645295]  drain_workqueue+0x34/0x198
[   17.652623]  __sas_drain_work+0x7c/0x168
[   17.659903]  sas_drain_work+0x60/0x68
[   17.666947]  hisi_sas_scan_finished+0x30/0x40 [hisi_sas_main]
[   17.676129]  do_scsi_scan_host+0x70/0xb0
[   17.683534]  do_scan_async+0x20/0x228
[   17.690586]  async_run_entry_fn+0x4c/0x1d0
[   17.697997]  process_one_work+0x1b4/0x3f8
[   17.705296]  worker_thread+0x54/0x470

Every time the call trace is not the same, but the overwrite address
is always the same:
Unable to handle kernel paging request at virtual address 0000000200000040

The root cause is, when write the reg XGMAC_MAC_TX_LF_RF_CONTROL_REG,
didn't use the io_base offset.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:35:42 -07:00
Yonglong Liu
acb1ce15a6 net: hns: Use NAPI_POLL_WEIGHT for hns driver
When the HNS driver loaded, always have an error print:
"netif_napi_add() called with weight 256"

This is because the kernel checks the NAPI polling weights
requested by drivers and it prints an error message if a driver
requests a weight bigger than 64.

So use NAPI_POLL_WEIGHT to fix it.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:35:42 -07:00
Liubin Shu
3a39a12ad3 net: hns: fix KASAN: use-after-free in hns_nic_net_xmit_hw()
This patch is trying to fix the issue due to:
[27237.844750] BUG: KASAN: use-after-free in hns_nic_net_xmit_hw+0x708/0xa18[hns_enet_drv]

After hnae_queue_xmit() in hns_nic_net_xmit_hw(), can be
interrupted by interruptions, and than call hns_nic_tx_poll_one()
to handle the new packets, and free the skb. So, when turn back to
hns_nic_net_xmit_hw(), calling skb->len will cause use-after-free.

This patch update tx ring statistics in hns_nic_tx_poll_one() to
fix the bug.

Signed-off-by: Liubin Shu <shuliubin@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:35:42 -07:00
Jian Shen
d223dfa40a net: hns3: split function hnae3_match_n_instantiate()
The function hnae3_match_n_instantiate() was called both by
initializing or uninitializing client. For uninitializing, the
return value was never used.

To make it more clear, this patch splits it to two functions,
hnae3_init_client_instance() and hnae3_uninit_client_instance().

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:39 -07:00
Huazhong Tan
1eeb336789 net: hns3: modify HNS3_NIC_STATE_INITED flag in hns3_reset_notify_uninit_enet
In the hns3_reset_notify_uninit_enet() HNS3_NIC_STATE_INITED flag
should be checked and cleared firstly.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:39 -07:00
Huazhong Tan
6ff7ed8049 net: hns3: prevent change MTU when resetting
When resetting, the changing of MTU is not allowed, so this patch
adds checking reset status in hns3_nic_change_mtu() to do that.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:39 -07:00
Huazhong Tan
c4e401e5a9 net: hns3: check resetting status in hns3_get_stats()
hns3_get_stats() should check the resetting status firstly,
since the device will be reinitialized when resetting. If the
reset has not completed, the hns3_get_stats() may access
invalid memory.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:39 -07:00
Jian Shen
389775a660 net: hns3: add protect when handling mac addr list
It used netdev->uc and netdev->mc list in function
hns3_recover_hw_addr() and hns3_remove_hw_addr().
We should add protect for them.

Fixes: f05e210971 ("net: hns3: Clear mac vlan table entries when unload driver or function reset")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:39 -07:00
Huazhong Tan
ffd0a922cd net: hns3: simplify hclgevf_cmd_csq_clean
csq is used as a ring buffer, the value of the desc will be replaced
in next use. This patch removes the unnecessary memset, and just
updates the next_to_clean.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:39 -07:00
Yunsheng Lin
ceca4a5e32 net: hns3: minor optimization for datapath
This patch adds a likely case for hns3_fill_desc and
limits the local variables' scope as much as possible,
also avoid div operation when the tqp_vector->num_tqps
is one.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:39 -07:00
Yunsheng Lin
0aa3d88a91 net: hns3: minor optimization for ring_space
This patch optimizes the ring_space by calculating the
ring space without calling ring_dist.

Also ring_dist is only used by ring_space, so this patch
removes it when it is no longer used.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:38 -07:00
Peng Li
72110b5674 net: hns3: return 0 and print warning when hit duplicate MAC
When set 2 same MAC to different function of one port, IMP
will return error as the later one may modify the origin one.
This will cause bond fail for 2 VFs of one port.

Driver just print warning and return 0 with this patch, so
if set same MAC address, it will return 0 but do not really
configure HW.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:38 -07:00
liuzhongzhu
9c3e713020 net: hns3: modify the VF network port media type acquisition method
Method for obtaining the media type of the VF network port periodically,
regular tasks will not run until the network port UP. When the network
port is DOWN, the network port cannot obtain the media type.
Modifies the media type obtained when initializing the VF network port.

Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:38 -07:00
Yonglong Liu
962e31bdfc net: hns3: reduce resources use in kdump kernel
When the kdump kernel started, the HNS3 driver fail to register:
[14.753340] hns3 0000:7d:00.0: Alloc umv space failed, want 512, get 0
[14.795034] hns3 0000:7d:00.0: add uc mac address fail, ret =-22.

By default, the HNS3 driver will use about 512M memory, but
usually the reserved memory of kdump kernel is 576M, so the HNS3
driver fail to register. This patch reduces the memory use in
kdump kernel to about 16M.

And when the kdump kernel starts, we must clear ucast mac address
first to avoid add fail.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:38 -07:00
Peng Li
95dbab9f36 net: hns3: check 1000M half for hns3_ethtool_ops.set_link_ksettings
Hip08 SOC does not support 1000M half, this patch adds 1000M half
check for hns3_ethtool_ops.set_link_ksettings, so the user can not
set 1000M half by ethtool.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-04 10:20:38 -07:00
Xi Wang
669efc76b3 net: hns3: fix compile error
Currently, the rules for configuring search paths in Kbuild have
changed, this will lead some erros when compiling hns3 with the
following command:

make O=DIR M=drivers/net/ethernet/hisilicon/hns3

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c:11:10:
fatal error: hnae3.h: No such file or directory

This patch fix it by adding $(srctree)/ prefix to the serach paths.

Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-27 22:47:58 -07:00
David S. Miller
356d71e00d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-27 17:37:58 -07:00
Moshe Shemesh
bea964107f net: Add IANA_VXLAN_UDP_PORT definition to vxlan header file
Added IANA_VXLAN_UDP_PORT (4789) definition to vxlan header file so it
can be used by drivers instead of local definition.
Updated drivers which locally defined it as 4789 to use it.

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Cc: John Hurley <john.hurley@netronome.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Yunsheng Lin <linyunsheng@huawei.com>
Cc: Peng Li <lipeng321@huawei.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-22 12:09:31 -07:00
Yunsheng Lin
5f543a54ee net: hns3: fix for not calculating tx bd num correctly
When there is only one byte in a frag, the current calculation
using "(size + HNS3_MAX_BD_SIZE - 1) >> HNS3_MAX_BD_SIZE_OFFSET"
will return zero, because HNS3_MAX_BD_SIZE is 65535 and
HNS3_MAX_BD_SIZE_OFFSET is 16. So it will cause tx error when
a frag's size is one byte.

This patch fixes it by using DIV_ROUND_UP.

Fixes: 3fe13ed95d ("net: hns3: avoid mult + div op in critical data path")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-21 13:59:24 -07:00