Those files under /proc/net/stat/ don't have vertical alignment, it looks
very difficult. Modify the seq_printf statement, keep vertical alignment.

v2:
 - Use seq_puts() and seq_printf() correctly.
Reported-by: Nkernel test robot <lkp@intel.com>
Signed-off-by: NYajun Deng <yajun.deng@linux.dev>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add an option lacp_active, which is similar with team's runner.active.
This option specifies whether to send LACPDU frames periodically. If set
on, the LACPDU frames are sent along with the configured lacp_rate
setting. If set off, the LACPDU frames acts as "speak when spoken to".

Note, the LACPDU state frames still will be sent when init or unbind port.

v2: remove module parameter
Signed-off-by: NHangbin Liu <liuhangbin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Duplicate include header file <linux/kernel.h>
line 4: #include <linux/kernel.h>
line 7: #include <linux/kernel.h>
Signed-off-by: Nzhouchuangao <zhouchuangao@vivo.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

strcpy() performs no bounds checking on the destination buffer. This
could result in linear overflows beyond the end of the buffer, leading
to all kinds of misbehaviors. The safe replacement is strscpy().
Signed-off-by: NLen Baker <len.baker@gmx.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove redundant prints from the iWARP SYN handling.
Signed-off-by: NAriel Elior <aelior@marvell.com>
Signed-off-by: NShai Malin <smalin@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The device recovery flow will reset the entire HW device, in that case
the DORQ HW block attention is redundant.
Signed-off-by: NAriel Elior <aelior@marvell.com>
Signed-off-by: NShai Malin <smalin@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Avoid calling the qed doorbell recovery - qed_db_rec_handler()
during device recovery.
Signed-off-by: NAriel Elior <aelior@marvell.com>
Signed-off-by: NShai Malin <smalin@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Vasily Averin says:

====================
skbuff: introduce skb_expand_head()

currently if skb does not have enough headroom skb_realloc_headrom is called.
It is not optimal because it creates new skb.

this patch set introduces new helper skb_expand_head()
Unlike skb_realloc_headroom, it does not allocate a new skb if possible;
copies skb->sk on new skb when as needed and frees original skb in case of failures.

This helps to simplify ip[6]_finish_output2(), ip6_xmit() and few other
functions in vrf, ax25 and bpf.

There are few other cases where this helper can be used
but it requires an additional investigations.

v3 changes:
 - ax25 compilation warning fixed
 - v5.14-rc4 rebase
 - now it does not depend on non-committed pathces

v2 changes:
 - helper's name was changed to skb_expand_head
 - fixed few mistakes inside skb_expand_head():
    skb_set_owner_w should set sk on nskb
    kfree was replaced by kfree_skb()
    improved warning message
 - added minor refactoring in changed functions in vrf and bpf patches
 - removed kfree_skb() in ax25_rt_build_path caller ax25_ip_xmit
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Unlike skb_realloc_headroom, new helper skb_expand_head
does not allocate a new skb if possible.

Additionally this patch replaces commonly used dereferencing with variables.
Signed-off-by: NVasily Averin <vvs@virtuozzo.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use skb_expand_head() in ax25_transmit_buffer and ax25_rt_build_path.
Unlike skb_realloc_headroom, new helper does not allocate a new skb if possible.
Signed-off-by: NVasily Averin <vvs@virtuozzo.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Unlike skb_realloc_headroom, new helper skb_expand_head
does not allocate a new skb if possible.
Signed-off-by: NVasily Averin <vvs@virtuozzo.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Unlike skb_realloc_headroom, new helper skb_expand_head
does not allocate a new skb if possible.
Signed-off-by: NVasily Averin <vvs@virtuozzo.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Unlike skb_realloc_headroom, new helper skb_expand_head
does not allocate a new skb if possible.

Additionally this patch replaces commonly used dereferencing with variables.
Signed-off-by: NVasily Averin <vvs@virtuozzo.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Unlike skb_realloc_headroom, new helper skb_expand_head does not allocate
a new skb if possible.

Additionally this patch replaces commonly used dereferencing with variables.
Signed-off-by: NVasily Averin <vvs@virtuozzo.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Like skb_realloc_headroom(), new helper increases headroom of specified skb.
Unlike skb_realloc_headroom(), it does not allocate a new skb if possible;
copies skb->sk on new skb when as needed and frees original skb in case
of failures.

This helps to simplify ip[6]_finish_output2() and a few other similar cases.
Signed-off-by: NVasily Averin <vvs@virtuozzo.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Saeed Mahameed says:

====================
This patch-set changes the TTC (Traffic Type Classification) logic
to be independent from the mlx5 ethernet driver by renaming the traffic
types enums and making the TTC API generic to the mlx5 core driver.

It allows to decouple TTC logic from mlx5e and reused by other parts
of mlx5 drivers, namely ADQ and lag TX steering hashing.

Patches overview:
1 - Rename traffic type enums to be mlx5 generic.
2 - Rename related TTC arguments and functions.
3 - Remove dependency in the mlx5e driver from the TTC implementation.
4 - Move TTC logic to fs_ttc.
5 - Embed struct mlx5_ttc_table in fs_ttc.

The refactoring series is followed by misc' cleanup patches.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The return value is missing in this code scenario, add the return value
'0' to the return value 'err'.

Eliminate the follow smatch warning:

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c:3083
mlx5_devlink_eswitch_inline_mode_set() warn: missing error code 'err'.
Reported-by: NAbaci Robot <abaci@linux.alibaba.com>
Fixes: 8e0aa4bc ("net/mlx5: E-switch, Protect eswitch mode changes")
Signed-off-by: NJiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: NLeon Romanovsky <leonro@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

Instead of returning -EINVAL.
Signed-off-by: NRoi Dayan <roid@nvidia.com>
Reviewed-by: NMaor Dickman <maord@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

counter is being initialized before being used.
Signed-off-by: NRoi Dayan <roid@nvidia.com>
Reviewed-by: NMaor Dickman <maord@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

Passing parse_attr is redundant in parse_tc_nic_actions() and
mlx5e_tc_add_nic_flow() as we can get it from flow.
This is the same as with parse_tc_fdb_actions() and mlx5e_tc_add_fdb_flow().
Signed-off-by: NRoi Dayan <roid@nvidia.com>
Reviewed-by: NMaor Dickman <maord@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

The cap is very old and today will always exists.
The cap is not being checked anywhere else. Remove the check from
drop action when parsing tc rules in nic mode.
Signed-off-by: NRoi Dayan <roid@nvidia.com>
Reviewed-by: NMaor Dickman <maord@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

filter_dev is saved in parse_attr. and being used in other cases from
there. use it also for the leftover case.
Signed-off-by: NRoi Dayan <roid@nvidia.com>
Reviewed-by: NMaor Dickman <maord@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

Since the code changed to use the flow action infra
there is no usage of tcf values from those includes.
Remove those.
Signed-off-by: NRoi Dayan <roid@nvidia.com>
Reviewed-by: NMaor Dickman <maord@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

mlx5_ttc_table struct shouldn't be exposed to the users so
this patch make it internal to ttc.

In addition add a getter function to get the TTC flow table for users
that need to add a rule which points on it.
Signed-off-by: NMaor Gottlieb <maorg@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Reviewed-by: NMark Bloch <mbloch@nvidia.com>

Now that TTC logic is not dependent on mlx5e structs, move it to
lib/fs_ttc.c so it could be used other part of the mlx5 driver.
Signed-off-by: NMaor Gottlieb <maorg@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Reviewed-by: NMark Bloch <mbloch@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

Remove dependency in the mlx5e driver from the TTC implementation
by changing the TTC related functions to receive mlx5 generic arguments.
It allows to decouple TTC logic from mlx5e and reused by other parts of
mlx5 driver.
Signed-off-by: NMaor Gottlieb <maorg@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Reviewed-by: NMark Bloch <mbloch@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

Since TTC logic is going to be moved to a separate file, make the
relevant functions and arguments that used by TTC to be mlx5 generic.
Signed-off-by: NMaor Gottlieb <maorg@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Reviewed-by: NMark Bloch <mbloch@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

Rename traffic type enums as part of the preparation for moving
the traffic type logic to a separate file.
Signed-off-by: NMaor Gottlieb <maorg@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Reviewed-by: NMark Bloch <mbloch@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

The channels array in struct mlx5e_rx_res is converted to a dynamic one,
which will use the dynamic value of max_nch instead of
implementation-defined maximum of MLX5E_MAX_NUM_CHANNELS.
Signed-off-by: NMaxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

This commit moves all implementation details of struct mlx5e_rx_res
under en/rx_res.c. All access to RX resources is now done using methods.
Encapsulating RX resources into an object allows for better
manageability, because all the implementation details are now in a
single place, and external code can use only a limited set of API
methods to init/teardown the whole thing, reconfigure RSS and LRO
parameters, connect TIRs to flow steering and activate/deactivate TIRs.

mlx5e_rx_res is self-contained and doesn't depend on struct mlx5e_priv
or include en.h.
Signed-off-by: NMaxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

Currently, struct mlx5e_channels is defined in en.h, along with a lot of
other stuff. In the following commit mlx5e_rx_res will need to get RQNs
(RQ hardware IDs), given a pointer to mlx5e_channels and the channel
index. In order to make it possible without including the whole en.h,
this commit introduces functions that will hide the implementation
details of mlx5e_channels.
Signed-off-by: NMaxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

Replace mlx5e_build_default_indir_rqt with a new initializer of struct
mlx5e_rss_params_indir that works directly with the struct, rather than
its internals.

The new initializer is called mlx5e_rss_params_indir_init_uniform, which
also reflects the purpose (uniform spreading) better.
Signed-off-by: NMaxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

Don't populate the array states on the stack but instead it
static const. Makes the object code smaller by 79 bytes.

Before:
   text   data   bss    dec    hex filename
  21309   8304   192  29805   746d drivers/net/ethernet/mellanox/mlx4/qp.o

After:
   text   data   bss    dec    hex filename
  21166   8368   192  29726   741e drivers/net/ethernet/mellanox/mlx4/qp.o

(gcc version 10.2.0)
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Reviewed-by: NLeon Romanovsky <leonro@nvidia.com>
Reviewed-by: NTariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20210801153742.147304-1-colin.king@canonical.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

Don't populate the array if_names on the stack but instead it
static const. Makes the object code smaller by 99 bytes.

Before:
   text    data     bss     dec     hex filename
  27886   10752     672   39310    998e ./drivers/net/ethernet/3com/3c509.o

After:
   text    data     bss     dec     hex filename
  27723   10816     672   39211    992b ./drivers/net/ethernet/3com/3c509.o

(gcc version 10.2.0)
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210801152650.146572-1-colin.king@canonical.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

Don't populate the array faf_bits on the stack but instead it
static const. Makes the object code smaller by 175 bytes.

Before:
   text  data   bss     dec   hex filename
   9645  4552     0   14197  3775 ../freescale/dpaa2/dpaa2-eth-devlink.o

After:
   text  data   bss     dec   hex filename
   9406  4616     0   14022  36c6 ../freescale/dpaa2/dpaa2-eth-devlink.o

(gcc version 10.2.0)
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210801152209.146359-1-colin.king@canonical.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

Don't populate the array random_data on the stack but instead it
static const. Makes the object code smaller by 66 bytes.

Before:
   text    data     bss     dec     hex filename
  52895   10976       0   63871    f97f ../qlogic/qlcnic/qlcnic_ethtool.o

After:
   text    data     bss     dec     hex filename
  52701   11104       0   63805    f93d ../qlogic//qlcnic/qlcnic_ethtool.o

(gcc version 10.2.0)
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210801151659.146113-1-colin.king@canonical.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

Don't populate the const array name on the stack but instead it
static. Makes the object code smaller by 28 bytes. Add a missing
const to clean up a checkpatch warning.

Before:
   text    data   bss     dec     hex filename
 124565   31565   384  156514   26362 drivers/net/ethernet/marvell/sky2.o

After:
   text    data   bss     dec     hex filename
 124441   31661   384  156486   26346 drivers/net/ethernet/marvell/sky2.o

(gcc version 10.2.0)
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210801150647.145728-1-colin.king@canonical.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

Don't populate the array match_all_mac on the stack but instead it
static const. Makes the object code smaller by 75 bytes.

Before:
   text    data     bss     dec     hex filename
  46701    8960      64   55725    d9ad ../chelsio/cxgb4/cxgb4_filter.o

After:
   text    data     bss     dec     hex filename
  46338    9120     192   55650    d962 ../chelsio/cxgb4/cxgb4_filter.o

(gcc version 10.2.0)
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210801151205.145924-1-colin.king@canonical.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

Ioana reported a refcount warning when booting over NFS:

[    5.042532] ------------[ cut here ]------------
[    5.047184] refcount_t: addition on 0; use-after-free.
[    5.052324] WARNING: CPU: 7 PID: 1 at lib/refcount.c:25 refcount_warn_saturate+0xa4/0x150
...
[    5.167201] Call trace:
[    5.169635]  refcount_warn_saturate+0xa4/0x150
[    5.174067]  fib_create_info+0xc00/0xc90
[    5.177982]  fib_table_insert+0x8c/0x620
[    5.181893]  fib_magic.isra.0+0x110/0x11c
[    5.185891]  fib_add_ifaddr+0xb8/0x190
[    5.189629]  fib_inetaddr_event+0x8c/0x140

fib_treeref needs to be set after kzalloc. The old code had a ++ which
led to the confusion when the int was replaced by a refcount_t.

Fixes: 79976892 ("net: convert fib_treeref from int to refcount_t")
Signed-off-by: NDavid Ahern <dsahern@kernel.org>
Reported-by: NIoana Ciornei <ciorneiioana@gmail.com>
Cc: Yajun Deng <yajun.deng@linux.dev>
Tested-by: NMatthieu Baerts <matthieu.baerts@tessares.net>
Link: https://lore.kernel.org/r/20210802160221.27263-1-dsahern@kernel.orgSigned-off-by: NJakub Kicinski <kuba@kernel.org>

Don't populate arrays on the stack but instead them static const.
Makes the object code smaller by 280 bytes.

Before:
   text    data     bss     dec     hex filename
  24142    4368     192   28702    701e ./drivers/net/phy/mscc/mscc_ptp.o

After:
   text    data     bss     dec     hex filename
  23830    4400     192   28422    6f06 ./drivers/net/phy/mscc/mscc_ptp.o

(gcc version 10.2.0)
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210801070155.139057-1-colin.king@canonical.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>