mainline inclusion
from mainline-master
commit d9069dab
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4M1HB
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d9069dab2075

----------------------------------------------------------------------

When the mbx or reset message arrives, the driver is informed
through an interrupt. This task can be processed only after
the workqueue is scheduled. In some cases, this workqueue
scheduling takes a long time. As a result, the mbx or reset
service task cannot be processed in time. So add some warning
message to improve debugging efficiency for this case.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit e175eb5f
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4M1HB
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e175eb5fb054

----------------------------------------------------------------------

The way to set tx spare buf via module parameter is not such
convenient as the way to set it via ethtool.

So,remove the way to set tx spare buf via module parameter.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit e65a0231
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4M1HB
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e65a0231d2ca

----------------------------------------------------------------------

Rx buf len is for rx BD buffer size, support setting it via ethtool -G
parameter and getting it via ethtool -g parameter.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 74624944
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4M1HB
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7462494408cd

----------------------------------------------------------------------

Add two new parameters kernel_ringparam and extack for
.get_ringparam and .set_ringparam to extend more ring params
through netlink.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
(fix conflicts: remove unsupported ethernets and ops)
(fix conflicts: adapt spnic and txgbe for interface change)
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit e445f08a
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4M1HB
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e445f08af2b1

----------------------------------------------------------------------

Tx copybreak buf size is used for tx copybreak feature, the feature is
used for small size packet or frag. It adds a queue based tx shared
bounce buffer to memcpy the small packet when the len of xmitted skb is
below tx_copybreak(value to distinguish small size and normal size),
and reduce the overhead of dma map and unmap when IOMMU is on.

Support setting it via ethtool --set-tunable parameter and getting
it via ethtool --get-tunable parameter.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 688db0c7
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=688db0c7a4a6

----------------------------------------------------------------------

Currently, driver only allow configuring ETS bandwidth of TCs according
to the max TC number queried from firmware. However, the hardware actually
supports 8 TCs and users may need to configure ETS bandwidth of all TCs,
so remove the restriction.

Fixes: 330baff5 ("net: hns3: add ETS TC weight setting in SSU module")
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 91fcc79b
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=91fcc79bff40

----------------------------------------------------------------------

If users set unicast mac address for VFs by PF, they need to guarantee all
VFs' address is different. This patch removes the check mac address exist
of VFs, for usrs can refresh mac addresses of all VFs directly without
need to modify the exist mac address to other value firstly.

Fixes: 8e6de441 ("net: hns3: add support for configuring VF MAC from the host")
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 1122eac1
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1122eac19476

----------------------------------------------------------------------

When driver queries the register number of mac statistics from firmware,
the old firmware runs in device version V2 only returns number of valid
registers, not include number of three reserved registers among of them.
It cause driver doesn't record the last three data when query mac
statistics.

To fix this problem, driver never query register number in device version
V2 and set it to a fixed value which include three reserved registers.

Fixes: c8af2887 ("net: hns3: add support pause/pfc durations for mac statistics")
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit e140c798
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e140c7983e30

----------------------------------------------------------------------

When fully configure VLANs for a VF, then unload the VF while
triggering a reset to PF, will cause a kernel crash because the
irq is already uninit.

[ 293.177579] ------------[ cut here ]------------
[ 293.183502] kernel BUG at drivers/pci/msi.c:352!
[ 293.189547] Internal error: Oops - BUG: 0 [#1] SMP
......
[ 293.390124] Workqueue: hclgevf hclgevf_service_task [hclgevf]
[ 293.402627] pstate: 80c00009 (Nzcv daif +PAN +UAO)
[ 293.414324] pc : free_msi_irqs+0x19c/0x1b8
[ 293.425429] lr : free_msi_irqs+0x18c/0x1b8
[ 293.436545] sp : ffff00002716fbb0
[ 293.446950] x29: ffff00002716fbb0 x28: 0000000000000000
[ 293.459519] x27: 0000000000000000 x26: ffff45b91ea16b00
[ 293.472183] x25: 0000000000000000 x24: ffffa587b08f4700
[ 293.484717] x23: ffffc591ac30e000 x22: ffffa587b08f8428
[ 293.497190] x21: ffffc591ac30e300 x20: 0000000000000000
[ 293.509594] x19: ffffa58a062a8300 x18: 0000000000000000
[ 293.521949] x17: 0000000000000000 x16: ffff45b91dcc3f48
[ 293.534013] x15: 0000000000000000 x14: 0000000000000000
[ 293.545883] x13: 0000000000000040 x12: 0000000000000228
[ 293.557508] x11: 0000000000000020 x10: 0000000000000040
[ 293.568889] x9 : ffff45b91ea1e190 x8 : ffffc591802d0000
[ 293.580123] x7 : ffffc591802d0148 x6 : 0000000000000120
[ 293.591190] x5 : ffffc591802d0000 x4 : 0000000000000000
[ 293.602015] x3 : 0000000000000000 x2 : 0000000000000000
[ 293.612624] x1 : 00000000000004a4 x0 : ffffa58a1e0c6b80
[ 293.623028] Call trace:
[ 293.630340] free_msi_irqs+0x19c/0x1b8
[ 293.638849] pci_disable_msix+0x118/0x140
[ 293.647452] pci_free_irq_vectors+0x20/0x38
[ 293.656081] hclgevf_uninit_msi+0x44/0x58 [hclgevf]
[ 293.665309] hclgevf_reset_rebuild+0x1ac/0x2e0 [hclgevf]
[ 293.674866] hclgevf_reset+0x358/0x400 [hclgevf]
[ 293.683545] hclgevf_reset_service_task+0xd0/0x1b0 [hclgevf]
[ 293.693325] hclgevf_service_task+0x4c/0x2e8 [hclgevf]
[ 293.702307] process_one_work+0x1b0/0x448
[ 293.710034] worker_thread+0x54/0x468
[ 293.717331] kthread+0x134/0x138
[ 293.724114] ret_from_fork+0x10/0x18
[ 293.731324] Code: f940b000 b4ffff00 a903e7b8 f90017b6 (d4210000)

This patch fixes the problem by waiting for the VF reset done
while unloading the VF.

Fixes: e2cb1dec ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 3b6db4a0
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b6db4a0492b

----------------------------------------------------------------------

When the driver processes rx packets, the head pointer is updated only
after the number of received packets reaches 16. However, hardware
relies on the head pointer to calculate the number of FBDs. As a result,
the hardware calculates the FBD incorrectly. Therefore, the driver
proactively updates the head pointer in each common poll to ensure that
the number of FBDs calculated by the hardware is correct.

Fixes: 68752b24 ("net: hns3: schedule the polling again when allocation fails")
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 0b653a81
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0b653a81a26d

----------------------------------------------------------------------

Currently, driver will send command to firmware to query pfc packet number
when user uses dcb tool to get pfc parameters. However, the periodic
service task will also periodically query and record MAC statistics,
including pfc packet number.

As the hardware registers of statistics is cleared after reading, it will
cause pfc packet number of MAC statistics are not correct after using dcb
tool to get pfc parameters.

To fix this problem, when user uses dcb tool to get pfc parameters, driver
updates MAC statistics firstly and then get pfc packet number from MAC
statistics.

Fixes: 64fd2300 ("net: hns3: add support for querying pfc puase packets statistic")
Signed-off-by: NJie Wang <wangjie125@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit beb27ca4
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=beb27ca451a5

----------------------------------------------------------------------

Currently, NIC init ROCE interrupt vector with MSIX interrupt. But ROCE use
pci_irq_vector() to get interrupt vector, which adds the relative interrupt
vector again and gets wrong interrupt vector.

So fixes it by assign relative interrupt vector to ROCE instead of MSIX
interrupt vector and delete the unused struct member base_msi_vector
declaration of hclgevf_dev.

Fixes: 46a3df9f ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: NJie Wang <wangjie125@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 3b4c6566
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b4c6566c158

----------------------------------------------------------------------

Currently, when driver is failed to add a new multicast mac address to
hardware due to the multicast mac table is full, it will directly return.
In this case, if the multicast mac list has some reuse addresses after the
new address, those reuse addresses will never be added to hardware.

To fix this problem, if function hclge_add_mc_addr_common() returns
-ENOSPC, hclge_sync_vport_mac_list() should judge whether continue or
stop to add next address.

As function hclge_sync_vport_mac_list() needs parameter mac_type to know
whether is uc or mc, refine this function to add parameter mac_type and
remove parameter sync. So does function hclge_unsync_vport_mac_list().

Fixes: ee4bcd3b ("net: hns3: refactor the MAC address configure")
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 85879f13
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=85879f131d78

----------------------------------------------------------------------

Fix kernel-doc warnings and spacing in hns3_ethtool.c:

hns3_ethtool.c:246: warning: No description found for return value of 'hns3_lp_run_test'
hns3_ethtool.c:408: warning: expecting prototype for hns3_nic_self_test(). Prototype was for hns3_self_test() instead
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Reported-by: Nkernel test robot <lkp@intel.com>
Cc: Peng Li <lipeng321@huawei.com>
Cc: Guangbin Huang <huangguangbin2@huawei.com>
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Cc: Salil Mehta <salil.mehta@huawei.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
(fix conflicts: remove hns3_do_selftest's fix due to a previous fix: 65b017dc "net: hns3: fix prototype warning")
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15
commit 630a6738
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=630a6738da82

----------------------------------------------------------------------

This patch adjusts the string spaces of some parameters of tx bd info in
debugfs according to their maximum needs.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15
commit c7a6e397
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c7a6e3978ea9

----------------------------------------------------------------------

The specified buffer length for three debugfs files fd_tcam, uc and tqp
is not enough for their maximum needs, so this patch fixes them.

Fixes: b5a0b70d ("net: hns3: refactor dump fd tcam of debugfs")
Fixes: 1556ea91 ("net: hns3: refactor dump mac list of debugfs")
Fixes: d96b0e59 ("net: hns3: refactor dump reg of debugfs")
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15
commit 6754614a
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6754614a787c

----------------------------------------------------------------------

As the width of packets number registers is 32 bits, they needs at most
10 characters for decimal data printing, but now the string spaces is not
enough, so this patch fixes it.

Fixes: e44c495d ("net: hns3: refactor queue info of debugfs")
Signed-off-by: NJie Wang <wangjie125@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15
commit 2a21dab5
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2a21dab594a9

----------------------------------------------------------------------

The member data in struct hclge_desc is type of __le32, it needs endian
conversion before using it, and some functions of debugfs didn't do that,
so this patch fixes it.

Fixes: c0ebebb9 ("net: hns3: Add "dcb register" status information query function")
Signed-off-by: NJie Wang <wangjie125@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15
commit 0251d196
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0251d196b0e1

----------------------------------------------------------------------

Currently, if there is a reset event triggered by RAS during device in
initialization process, driver may run reset process concurrently with
initialization process. In this case, it may cause problem. For example,
the RSS indirection table may has not been alloc memory in initialization
process yet, but it is used in reset process, it will cause a call trace
like this:

[61228.744836] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
...
[61228.897677] Workqueue: hclgevf hclgevf_service_task [hclgevf]
[61228.911390] pstate: 40400009 (nZcv daif +PAN -UAO -TCO BTYPE=--)
[61228.918670] pc : hclgevf_set_rss_indir_table+0xb4/0x190 [hclgevf]
[61228.927812] lr : hclgevf_set_rss_indir_table+0x90/0x190 [hclgevf]
[61228.937248] sp : ffff8000162ebb50
[61228.941087] x29: ffff8000162ebb50 x28: ffffb77add72dbc0 x27: ffff0820c7dc8080
[61228.949516] x26: 0000000000000000 x25: ffff0820ad4fc880 x24: ffff0820c7dc8080
[61228.958220] x23: ffff0820c7dc8090 x22: 00000000ffffffff x21: 0000000000000040
[61228.966360] x20: ffffb77add72b9c0 x19: 0000000000000000 x18: 0000000000000030
[61228.974646] x17: 0000000000000000 x16: ffffb77ae713feb0 x15: ffff0820ad4fcce8
[61228.982808] x14: ffffffffffffffff x13: ffff8000962eb7f7 x12: 00003834ec70c960
[61228.991990] x11: 00e0fafa8c206982 x10: 9670facc78a8f9a8 x9 : ffffb77add717530
[61229.001123] x8 : ffff0820ad4fd6b8 x7 : 0000000000000000 x6 : 0000000000000011
[61229.010249] x5 : 00000000000cb1b0 x4 : 0000000000002adb x3 : 0000000000000049
[61229.018662] x2 : ffff8000162ebbb8 x1 : 0000000000000000 x0 : 0000000000000480
[61229.027002] Call trace:
[61229.030177]  hclgevf_set_rss_indir_table+0xb4/0x190 [hclgevf]
[61229.039009]  hclgevf_rss_init_hw+0x128/0x1b4 [hclgevf]
[61229.046809]  hclgevf_reset_rebuild+0x17c/0x69c [hclgevf]
[61229.053862]  hclgevf_reset_service_task+0x4cc/0xa80 [hclgevf]
[61229.061306]  hclgevf_service_task+0x6c/0x630 [hclgevf]
[61229.068491]  process_one_work+0x1dc/0x48c
[61229.074121]  worker_thread+0x15c/0x464
[61229.078562]  kthread+0x168/0x16c
[61229.082873]  ret_from_fork+0x10/0x18
[61229.088221] Code: 7900e7f6 f904a683 d503201f 9101a3e2 (38616b43)
[61229.095357] ---[ end trace 153661a538f6768c ]---

To fix this problem, don't schedule reset task before initialization
process is done.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15
commit f29da408
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f29da4088fb4

----------------------------------------------------------------------

Currently, the workqueue of hclge/hclgevf is executed on
the CPU that initiates scheduling requests by default. In
stress scenarios, the CPU may be busy and workqueue scheduling
is completed after a long period of time. To avoid this
situation and implement proper scheduling, use the WQ_UNBOUND
mode instead. In this way, the workqueue can be performed on
a relatively idle CPU.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit da3fea80
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=da3fea80fea4

----------------------------------------------------------------------

This patch adds himac error recovery module, link_error type and
ptp_error type for himac.
Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit b566ef60
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b566ef60394c

----------------------------------------------------------------------

This patch adds one ras error of bus related for roce, this error
including RRESP/BRESP and read poison error.
Signed-off-by: NWeihang Li <liweihang@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 6eaed433
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6eaed433ee5f

----------------------------------------------------------------------

Currently, the ethtool advertised link modes of FIBRE port is cleared to
zero when autoneg is off, so user can not get the advertised link modes
info directly from "ethtool <dev>" command.

In order to ameliorate this situation, update data of speeds, fec and pause
of advertised link modes when autoneg is off.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 58cb422e
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=58cb422ef625

----------------------------------------------------------------------

The functions of converting speed ability to ethtool link mode just
support setting mac->supported currently, to reuse these functions to
set ethtool link mode for others(i.e. advertising), delete the argument
mac and add argument link_mode.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit c8af2887
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c8af2887c941

----------------------------------------------------------------------

The mac statistics add pause/pfc durations in device version V3, we can
get total active cycle of pause/pfc from these durations.

As driver gets register number from firmware to calculate desc number to
query mac statistics, it needs to set mac statistics extended enable bit
in firmware command 0x701A to tell firmware that driver supports extended
mac statistics, otherwise firmware only returns register number of
version V1.

As pause/pfc durations are not supported by hardware of old version, they
should not been shown in command "ethtool -S ethX" in this case, so add
checking max register number of each mac statistic in their version.
If the max register number of one mac statistic is greater than register
number got from firmware, it means hardware does not support this mac
statistic, so ignore this statistic when get string and data of mac
statistic.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 4e4c03f6
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4e4c03f6ab63

----------------------------------------------------------------------

Currently, driver queries number of mac statistics before querying mac
statistics. As the number of mac statistics is a fixed value in firmware,
it is redundant to query this number everytime before querying mac
statistics, it can just be queried once in initialization process and
saved in device specifications.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 0bd7e894
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0bd7e894dffa

----------------------------------------------------------------------

After querying mac statistics from firmware, driver copies data from
descriptors to struct mac_stats of hdev, and the number of copied data
is just according to the register number queried from firmware. There is
a problem that if the register number queried from firmware is larger
than data number of struct mac_stats, it will cause a copy overflow.

So if the firmware adds more mac statistics in later version, it is not
compatible with driver of old version.

To fix this problem, the number of copied data needs to be used the
minimum value between the register number queried from firmware and
data number of struct mac_stats.

The first descriptor has three data and there is one reserved, to
optimize the copy process, add this reserverd data to struct mac_stats.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit c99fead7
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c99fead7cb07

----------------------------------------------------------------------

Since user may need to check the current configuration of the
interrupt coalesce, so add debugfs support for query this info.

Create a single file "coalesce_info" for it, and query it by
"cat coalesce_info", return the result to userspace.

For device whose version is above V3(include V3), the GL's register
contains usecs and 1us unit configuration. When get the usecs
configuration from this register, it will include the confusing unit
configuration, so add a GL mask to get the correct value, and add
a QL mask for the frames configuration as well.

The display style is below:
$ cat coalesce_info
tx interrupt coalesce info:
VEC_ID  ALGO_STATE  PROFILE_ID  CQE_MODE  TUNE_STATE  STEPS_LEFT...
0       IN_PROG     4           EQE       ON_TOP      0...
1       START       3           EQE       LEFT        1...

rx interrupt coalesce info:
VEC_ID  ALGO_STATE  PROFILE_ID  CQE_MODE  TUNE_STATE  STEPS_LEFT...
0       IN_PROG     3           EQE       LEFT        1...
1       IN_PROG     0           EQE       ON_TOP      0...
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc7
commit 68752b24
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=68752b24f51a

----------------------------------------------------------------------

Currently when there is a rx page allocation failure, it is
possible that polling may be stopped if there is no more packet
to be reveiced, which may cause queue stall problem under memory
pressure.

This patch makes sure polling is scheduled again when there is
any rx page allocation failure, and polling will try to allocate
receive buffers until it succeeds.

Now the allocation retry is added, it is unnecessary to do the rx
page allocation at the end of rx cleaning, so remove it. And reset
the unused_count to zero after calling hns3_nic_alloc_rx_buffers()
to avoid calling hns3_nic_alloc_rx_buffers() repeatedly under
memory pressure.

Fixes: 76ad4f0e ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: NYunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc7
commit 9f9f0f19
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9f9f0f19994b

----------------------------------------------------------------------

rx unused desc is the desc that need attatching new buffer
before refilling to hw to receive new packet, the number of
desc need attatching new buffer is calculated using next_to_use
and next_to_clean. when next_to_use == next_to_clean, currently
hns3 driver assumes that all the desc has the buffer attatched,
but 'next_to_use == next_to_clean' also means all the desc need
attatching new buffer if hw has comsumed all the desc and the
driver has not attatched any buffer to the desc yet.

This patch adds 'refill' in desc_cb to indicate whether a new
buffer has been refilled to a desc.

Fixes: 76ad4f0e ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: NYunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc7
commit 60484103
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=60484103d5c3

----------------------------------------------------------------------

Add configuration of interrupt type and fifo interrupt enable of TM QCN
error event if enabled, otherwise this event will not be reported when
there is error.

Fixes: d914971d ("net: hns3: remove redundant query in hclge_config_tm_hw_err_int()")
Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit e519d9ea
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e519d9ea62e8

----------------------------------------------------------------------

Replace dev->driver_name() by dev_driver_string() for the corresponding
struct device.  This is a step toward removing pci_dev->driver.

[bhelgaas: split to separate patch]
Link: https://lore.kernel.org/r/20211004125935.2300113-8-u.kleine-koenig@pengutronix.deSigned-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 850bfb91
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=850bfb912a6d

----------------------------------------------------------------------

Add a file node "page_pool_info" for debugfs, then cat this
file node to dump page pool info as below:

QUEUE_ID  ALLOCATE_CNT  FREE_CNT      POOL_SIZE(PAGE_NUM)  ORDER  NUMA_ID  MAX_LEN
0         512           0             512                  0      2        4K
1         512           0             512                  0      2        4K
2         512           0             512                  0      2        4K
3         512           0             512                  0      2        4K
4         512           0             512                  0      2        4K
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc4
commit 0178839c
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0178839ccca3

----------------------------------------------------------------------

Currently, the firmware compatible features are enabled in PF driver
initialization process, but they are not disabled in PF driver
deinitialization process and firmware keeps these features in enabled
status.

In this case, if load an old PF driver (for example, in VM) which not
support the firmware compatible features, firmware will still send mailbox
message to PF when link status changed and PF will print
"un-supported mailbox message, code = 201".

To fix this problem, disable these firmware compatible features in PF
driver deinitialization process.

Fixes: ed8fb4b2 ("net: hns3: add link change event report")
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc4
commit 276e6042
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=276e60421668

----------------------------------------------------------------------

If unicast mac address table is full, and user add a new mac address, the
unicast promisc needs to be enabled for the new unicast mac address can be
used. So does the multicast promisc.

Now this feature has been implemented for PF, and VF should be implemented
too. When the mac table of VF is overflow, PF will enable promisc for this
VF.

Fixes: 1e6e7610 ("net: hns3: configure promisc mode for VF asynchronously")
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc4
commit d82650be
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d82650be60ee

----------------------------------------------------------------------

For destroy mqprio is irreversible in stack, so it's unnecessary
to rollback the tc configuration when destroy mqprio failed.
Otherwise, it may cause the configuration being inconsistent
between driver and netstack.

As the failure is usually caused by reset, and the driver will
restore the configuration after reset, so it can keep the
configuration being consistent between driver and hardware.

Fixes: 5a5c9091 ("net: hns3: add support for tc mqprio offload")
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc4
commit a8e76fef
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a8e76fefe3de

----------------------------------------------------------------------

Currently, in function hns3_nic_set_real_num_queue(), the
driver doesn't report the queue count and offset for disabled
tc. If user enables multiple TCs, but only maps user
priorities to partial of them, it may cause the queue range
of the unmapped TC being displayed abnormally.

Fix it by removing the tc enable checking, ensure the queue
count is not zero.

With this change, the tc_en is useless now, so remove it.

Fixes: a75a8efa ("net: hns3: Fix tc setup when netdev is first up")
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-v5.15-rc4
commit c894b51e
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c894b51e2a23

----------------------------------------------------------------------

This function copies strings around between multiple buffers
including a large on-stack array that causes a build warning
on 32-bit systems:

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c: In function 'hclge_dbg_dump_tm_pg':
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c:782:1: error: the frame size of 1424 bytes is larger than 1400 bytes [-Werror=frame-larger-than=]

The function can probably be cleaned up a lot, to go back to
printing directly into the output buffer, but dynamically allocating
the structure is a simpler workaround for now.

Fixes: 04d96139 ("net: hns3: refine function hclge_dbg_dump_tm_pri()")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit 5c56ff48
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5c56ff486dfc

----------------------------------------------------------------------

The new firmware supports to divides the whole multicast MAC address space
equally to functions of all PFs, and calculates the space size of each PF
according to its function number.

To support this feature, PF driver adds querying multicast MAC address
space size from firmware and limits used number according to space size.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

mainline inclusion
from mainline-master
commit e435a6b5
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4I7P7
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e435a6b5315a

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Currently, there are two ways for PF to set the unicast MAC address space
size: specified by config parameters in firmware or set to default value.

That's mean if the config parameters in firmware is zero, driver will
divide the whole unicast MAC address space equally to 8 PFs. However, in
this case, the unicast MAC address space will be wasted a lot when the
hardware actually has less then 8 PFs. And in the other hand, if one PF has
much more VFs than other PFs, then each function of this PF will has much
less address space than other PFs.

In order to ameliorate the above two situations, introduce the third way
of unicast MAC address space assignment: firmware divides the whole unicast
MAC address space equally to functions of all PFs, and calculates the space
size of each PF according to its function number. PF queries the space size
by the querying device specification command when in initialization
process.

The third way assignment is lower priority than specified by config
parameters, only if the config parameters is zero can be used, and if
firmware does not support the third way assignment, then driver still
divides the whole unicast MAC address space equally to 8 PFs.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>