Commit Graph

1394 Commits

Author SHA1 Message Date
Yonglong Liu
cb10228d23 net: hns3: adds support for reading module eeprom info
This patch adds support for reading the optical module eeprom
info via "ethtool -m".

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29 11:41:33 -07:00
Huazhong Tan
3fd8dc269f net: hns3: remove an unnecessary check in hclge_set_umv_space()
Since hclge_set_umv_space() is only called by hclge_init_umv_space(),
parameter 'allocated_size' will not be NULL.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-25 20:56:45 -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
7d0b345156 net: hns3: use mutex vport_lock instead of mutex umv_lock
Currently, the driver use mutex umv_lock to protect the variable
vport->share_umv_size. And there is already a mutex vport_lock
being defined in the driver, which is designed to protect the
resource of vport. So we can use vport_lock instead of umv_lock.

Furthermore, there is a time window for protect share_umv_size
between checking UMV space and doing MAC configuration in the
lin function hclge_add_uc_addr_common(). It should be extended.

This patch uses mutex vport_lock intead of spin lock umv_lock to
protect share_umv_size, and adjusts the mutex's range.

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
f671237a4b net: hns3: add support for dumping UC and MC MAC list
This patch adds support for dumping entries of UC and MC MAC list,
which help checking whether a MAC address being added into hardware
or not.

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
Jian Shen
4c58f59247 net: hns3: replace num_req_vfs with num_alloc_vport in hclge_reset_umv_space()
Like the calculation elsewhere, replaces num_req_vfs with
num_alloc_vport in hclge_reset_umv_space().

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
c1c5f66ee0 net: hns3: remove unnecessary parameter 'is_alloc' in hclge_set_umv_space()
Since hclge_set_umv_space() is only called by hclge_init_umv_space(),
so parameter 'is_alloc' is redundant.

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
1ac0e6c292 net: hns3: refine for unicast MAC VLAN space management
Currently, firmware helps manage the unicast MAC VLAN table
space for each PF. PF just needs to tell firmware its wanted
space when initializing, and unnecessary to free it when
un-intializing. So this patch removes the umv space free handle,
and removes the forward statement of hclge_set_umv_space()
by defining hclge_init_umv_space() after 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>
2020-04-25 20:29:43 -07:00
Leon Romanovsky
cad99e5068 net/hns: Remove custom driver version in favour of global one
Use globally defined kernel version instead of custom driver variant.

Reported-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 13:27:37 -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
Yufeng Mo
5cb51cfe8a net: hns3: add support for dumping MAC reg in debugfs
This patch adds support for dumping MAC reg in debugfs,
which will be helpful for debugging.

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
Guojia Liao
a3ca5e9048 net: hns3: add debug information for flow table when failed
Adds some debug information for failures of processing flow table,
removes the redundant printing when hclge_fd_check_spec() returns
error, and modifies the printing level for FD not enable error.

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>
2020-04-20 12:49:18 -07:00
Huazhong Tan
0b4bdc55df net: hns3: clean up some coding style issue
This patch removes some unnecessary blank lines, redundant
parentheses, and changes one tab to blank in
hclge_dbg_dump_reg_common().

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
Guojia Liao
84944d5c47 net: hns3: modify some unsuitable type declaration
In hclge_set_fd_key_config(), parameter 'stage' should be
as enum HCLGE_FD_STAGE, and in hclge_config_key(), 'tuple_size'
should be type u8, also simplify unsigned int with u32 for 'i'.

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>
2020-04-20 12:49:18 -07:00
Guojia Liao
f84f6a8634 net: hns3: remove two unused structures in hclge_cmd.h
struct hclge_mac_vlan_remove_cmd and hclge_mac_vlan_add_cmd are unused.
So removes them from hclge_cmd.h.

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>
2020-04-20 12:49:17 -07:00
Guojia Liao
16505f878e net: hns3: remove useless proto_support field in struct hclge_fd_cfg
proto_support field in struct hclge_fd_cfg shows what protocols
in flow direct table are supported now. It is unnecessary since
checking which one is unsupported will be more efficient,
so this patch removes it.

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>
2020-04-20 12:49:17 -07:00
Huazhong Tan
e9368c4094 net: hns3: remove an unnecessary case 0 in hclge_fd_convert_tuple()
Since case default has included case 0, so removes this
redundant case 0.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-20 12:49:17 -07:00
Jian Shen
fa663c0960 net: hns3: split out hclge_get_fd_rule_info()
hclge_get_fd_rule_info() is bloated, this patch separates
it into several standalone functions for readability and
maintainability.

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>
2020-04-20 12:49:17 -07:00
Jian Shen
736fc0e17f net: hns3: split out hclge_fd_check_ether_tuple()
For readability and maintainability, this patch separates the
handling part of each flow type in hclge_fd_check_ether_tuple()
into standalone functions.

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>
2020-04-20 12:49:17 -07:00
Jason Yan
6d92797716 net: hns: use true,false for bool variables
Fix the following coccicheck warning:

drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c:700:2-8: WARNING:
Assignment of 0/1 to bool variable
drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c:702:2-8: WARNING:
Assignment of 0/1 to bool variable

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-20 11:04:24 -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
Guangbin Huang
a9775bb64a net: hns3: fix set and get link ksettings issue
When device is not open, the service task which update the port
information per second is not running. In this case, the port
capabilities, including speed ability, autoneg ability, media type,
may be incorrect. Then get/set link ksetting may fail.

This patch fixes it by updating the port information before getting/
setting link ksettings when device is not open, and start timer
task immediately by setting delay time to 0 when device opens.

Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
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>
2020-03-30 10:57:53 -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
Huazhong Tan
74ef402e13 net: hns3: fix for fraglist SKB headlen not handling correctly
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: 8ae10cfb50 ("net: hns3: support tx-scatter-gather-fraglist feature")
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
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
59359fc8a2 net: hns3: clear port base VLAN when unload PF
Currently, PF missed to clear the port base VLAN for VF when
unload. In this case, the VLAN id will remain in the VLAN
table. This patch fixes it.

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>
2020-03-12 11:38:26 -07:00
Jian Shen
903b85d3ad net: hns3: fix RMW issue for VLAN filter switch
According to the user manual, the ingress and egress VLAN filter
are configured at the same time. Currently, hclge_init_vlan_config()
and hclge_set_vlan_spoofchk() will both change the VLAN filter
switch. So it's necessary to read the old configuration before
modifying it.

Fixes: 22044f95fa ("net: hns3: add support for spoof check setting")
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
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
Yonglong Liu
5eb01ddfcf net: hns3: fix "tc qdisc del" failed issue
The HNS3 driver supports to configure TC numbers and TC to priority
map via "tc" tool. But when delete the rule, will fail, because
the HNS3 driver needs at least one TC, but the "tc" tool sets TC
number to zero when delete.

This patch makes sure that the TC number is at least one.

Fixes: 30d240dfa2 ("net: hns3: Add mqprio hardware offload support in hns3 driver")
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>
2020-03-12 11:38:26 -07:00
Jakub Kicinski
7b8fda64b2 net: hns3: reject unsupported coalescing params
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver did not previously reject unsupported parameters.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12 11:32:36 -07:00
Jakub Kicinski
4f9546d24a net: hns: reject unsupported coalescing params
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver did not previously reject unsupported parameters.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12 11:32:35 -07:00
Yufeng Mo
fbdc4d79fc net: hns3: delete unnecessary logs after kzalloc fails
Since kernel already has logs after kzalloc fails,
it's unnecessary to print duplicate logs. So this
patch deletes these logs.

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>
2020-03-09 19:36:13 -07:00
Huazhong Tan
8de91e9207 net: hns3: synchronize some print relating to reset issue
This patch modifies some printing relating to reset issue.

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
Yufeng Mo
77ba415d19 net: hns3: print out command code when dump fails in debugfs
This patch adds a local variable to save the command code in
some dump cases which need to modify the command code, then
the failing command code can be print out for debugging.

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>
2020-03-09 19:36:13 -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
Yonglong Liu
9091367037 net: hns3: add a check before PF inform VF to reset
When setting VF's MAC from PF, if the VF driver not loaded, the
firmware will return error to PF.

So PF should check whether VF is alive before sending message to
VF when setting VF's MAC.

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>
2020-03-09 19:36:13 -07:00
Guojia Liao
01c45c521a net: hns3: delete some reduandant code
In hclge_add_mc_addr_common() and hclge_rm_mc_addr_common(),
variable req had been set as "0" by memset(), so it's unnecessary
to set .entry_type field as "0" with hnae3_set_bit() again.

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>
2020-03-09 19:36:13 -07:00
Yufeng Mo
89a8555930 net: hns3: remove an unnecessary resetting check in hclge_handle_hw_ras_error()
In hclge_handle_hw_ras_error(), it is unnecessary to check
HCLGE_STATE_RST_HANDLING flag, because the reset priority
has been ensured by the process itself.

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>
2020-03-09 19:36:13 -07:00
Yufeng Mo
4960cabff6 net: hns3: rename macro HCLGE_MAX_NCL_CONFIG_LENGTH
The name of macro HCLGE_MAX_NCL_CONFIG_LENGTH is inaccurate,
this patch renames it to HCLGE_NCL_CONFIG_LENGTH_IN_EACH_CMD.

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>
2020-03-09 19:36:12 -07:00
Guojia Liao
72fa490480 net: hns3: fix some mixed type assignment
This patch cleans up some incorrect type in assignment reported by sparse
and compiler.
The warning as below:
- warning : restricted __le16 degrades to integer
- warning : cast from restricted __le32
- warning : cast from restricted __be32
- warning : cast from restricted __be16
and "mixed operation".

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>
2020-03-09 19:36:12 -07:00
Jakub Kicinski
60d339641a hisilicon: let core reject the unsupported coalescing parameters
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
No functional changes.

v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:35 -08:00
Jian Shen
68e1006f61 net: hns3: fix a not link up issue when fibre port supports autoneg
When fibre port supports auto-negotiation, the IMP(Intelligent
Management Process) processes the speed of auto-negotiation
and the  user's speed separately.
For below case, the port will get a not link up problem.
step 1: disables auto-negotiation and sets speed to A, then
the driver's MAC speed will be updated to A.
step 2: enables auto-negotiation and MAC gets negotiated
speed B, then the driver's MAC speed will be updated to B
through querying in periodical task.
step 3: MAC gets new negotiated speed A.
step 4: disables auto-negotiation and sets speed to B before
periodical task query new MAC speed A, the driver will  ignore
the speed configuration.

This patch fixes it by skipping speed and duplex checking when
fibre port supports auto-negotiation.

Fixes: 22f48e24a2 ("net: hns3: add autoneg and change speed support for fibre 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>
2020-03-05 12:04:50 -08:00
Gustavo A. R. Silva
c5d6cf903f net: hns: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-26 16:43:09 -08:00
Colin Ian King
31a57fded3 net: hns3: remove redundant initialization of pointer 'client'
The pointer 'client' is being initialized with a value that is never
read, it is being updated later on. The initialization is redundant
and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-24 11:21:19 -08:00