Commit Graph

935433 Commits

Author SHA1 Message Date
Tariq Toukan
0bdc89b39d net/mlx5e: Do not request completion on every single UMR WQE
UMR WQEs are posted in bulks, and HW is notified once per a bulk.
Reduce the number of completions by requesting such only for
the last WQE of the bulk.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:58 -07:00
Tariq Toukan
2901a5c618 net/mlx5e: RX, Avoid indirect call in representor CQE handling
Use INDIRECT_CALL_2() helper to avoid the cost of the indirect call
when/if CONFIG_RETPOLINE=y.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:56 -07:00
Tariq Toukan
93761ca17e net/mlx5e: XDP, Avoid indirect call in TX flow
Use INDIRECT_CALL_2() helper to avoid the cost of the indirect call
when/if CONFIG_RETPOLINE=y.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:54 -07:00
Raed Salem
7ed92f97a1 net/mlx5e: IPsec: Add Connect-X IPsec ESN update offload support
Synchronize offloading device ESN with xfrm received SN
by updating an existing IPsec HW context with the new SN.

Signed-off-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:51 -07:00
Raed Salem
b2ac7541e3 net/mlx5e: IPsec: Add Connect-X IPsec Rx data path offload
On receive flow inspect received packets for IPsec offload indication
using the cqe, for IPsec offloaded packets propagate offload status
and stack handle to stack for further processing.

Supported statuses:
- Offload ok.
- Authentication failure.
- Bad trailer indication.

Connect-X IPsec does not use mlx5e_ipsec_handle_rx_cqe.

For RX only offload, we see the BW gain. Below is the iperf3
performance report on two server of 24 cores Intel(R) Xeon(R)
CPU E5-2620 v3 @ 2.40GHz with ConnectX6-DX.
We use one thread per IPsec tunnel.

---------------------------------------------------------------------
Mode          |  Num tunnel | BW     | Send CPU util | Recv CPU util
              |             | (Gbps) | (Average %)   | (Average %)
---------------------------------------------------------------------
Cryto offload | 1           | 4.6    | 4.2           | 14.5
---------------------------------------------------------------------
Cryto offload | 24          | 38     | 73            | 63
---------------------------------------------------------------------
Non-offload   | 1           | 4      | 4             | 13
---------------------------------------------------------------------
Non-offload   | 24          | 23     | 52            | 67

Signed-off-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:49 -07:00
Huy Nguyen
5e46634529 net/mlx5e: IPsec: Add IPsec steering in local NIC RX
Introduce decrypt FT, the RX error FT and the default rules.

The IPsec RX decrypt flow table is pointed by the TTC
(Traffic Type Classifier) ESP steering rules.
The decrypt flow table has two flow groups. The first flow group
keeps the decrypt steering rule programmed via the "ip xfrm s" interface.
The second flow group has a default rule to forward all non-offloaded
ESP packet to the TTC ESP default RSS TIR.

The RX error flow table is the destination of the decrypt steering rules
in the IPsec RX decrypt flow table. It has a fixed rule with single
copy action that copies ipsec_syndrome to metadata_regB[0:6]. The IPsec
syndrome is used to filter out non-ipsec packet and to return the IPsec
crypto offload status in Rx flow. The destination of RX error flow table
is the TTC ESP default RSS TIR.

All the FTs (decrypt FT and error FT) are created only when IPsec SAs
are added. If there is no IPsec SAs, the FTs are removed.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:48 -07:00
Huy Nguyen
78fb6122fa net/mlx5: Add IPsec related Flow steering entry's fields
Add FTE actions IPsec ENCRYPT/DECRYPT
Add ipsec_obj_id field in FTE
Add new action field MLX5_ACTION_IN_FIELD_IPSEC_SYNDROME

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:46 -07:00
Raed Salem
2d64663cd5 net/mlx5: IPsec: Add HW crypto offload support
This patch adds support for Connect-X IPsec crypto offload
by implementing the IPsec acceleration layer needed routines,
which delegates IPsec offloads to Connect-X routines.

In Connect-X IPsec, a Security Association (SA) is added or deleted
via allocating a HW context of an encryption/decryption key and
a HW context of a matching SA (IPsec object).
The Security Policy (SP) is added or deleted by creating matching Tx/Rx
steering rules whith an action of encryption/decryption respectively,
executed using the previously allocated SA HW context.

When new xfrm state (SA) is added:
- Use a separate crypto key HW context.
- Create a separate IPsec context in HW to inlcude the SA properties:
 - aes-gcm salt.
 - ICV properties (ICV length, implicit IV).
 - on supported devices also update ESN.
 - associate the allocated crypto key with this IPsec context.

Introduce a new compilation flag MLX5_IPSEC for it.

Downstream patches will implement the Rx,Tx steering
and will add the update esn.

Signed-off-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:44 -07:00
Raed Salem
9a6ad1ad71 net/mlx5: Accel, Add core IPsec support for the Connect-X family
This to set the base for downstream patches to support
the new IPsec implementation of the Connect-X family.

Following modifications made:
- Remove accel layer dependency from MLX5_FPGA_IPSEC.
- Introduce accel_ipsec_ops, each IPsec device will
  have to support these ops.

Signed-off-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:42 -07:00
Parav Pandit
ea2128fd63 net/mlx5: E-switch, Reduce dependency on num_vfs during mode set
Currently only ECPF allows enabling eswitch when SR-IOV is disabled.

Enable PF also to enable eswitch when SR-IOV is disabled.
Load VF vports when eswitch is already enabled.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:40 -07:00
Parav Pandit
3d5f41ca01 net/mlx5: E-switch, Avoid function change handler for non ECPF
for non ECPF eswitch manager function, vports are already
enabled/disabled when eswitch is enabled/disabled respectively.
Simplify function change handler for such eswitch manager function.

Therefore, ECPF is the only one which remains PF/VF function change
handler.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:38 -07:00
Tariq Toukan
e21feb88f7 net/mlx5: Make MLX5_EN_TLS non-prompt
TLS runs only over Eth, and the Eth driver is the only user of
the core TLS functionality.
There is no meaning of having the core functionality without the usage
in Eth driver.
Hence, let both TLS core implementations depend on MLX5_CORE_EN,
and select MLX5_EN_TLS.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-16 16:36:36 -07:00
Saeed Mahameed
8b5ec43d73 net/mlx5e: Fix build break when CONFIG_XPS is not set
mlx5e_accel_sk_get_rxq is only used in ktls_rx.c file which already
depends on XPS to be compiled, move it from the generic en_accel.h
header to be local in ktls_rx.c, to fix the below build break

In file included from
../drivers/net/ethernet/mellanox/mlx5/core/en_main.c:49:0:
../drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h:
In function ‘mlx5e_accel_sk_get_rxq’:
../drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h:153:12:
error: implicit declaration of function ‘sk_rx_queue_get’ ...
  int rxq = sk_rx_queue_get(sk);
            ^~~~~~~~~~~~~~~

Fixes: 1182f36593 ("net/mlx5e: kTLS, Add kTLS RX HW offload support")
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
2020-07-16 16:36:33 -07:00
Parav Pandit
1315971fea net/mlx5e: Fix missing switch_id for representors
Cited commit in fixes tag missed to set the switch id of the PF and VF
ports. Due to this flow cannot be offloaded, a simple command like below
fails to offload with below error.

tc filter add dev ens2f0np0 parent ffff: prio 1 flower \
 dst_mac 00:00:00:00:00:00/00:00:00:00:00:00 skip_sw \
 action mirred egress redirect dev ens2f0np0pf0vf0

Error: mlx5_core: devices are not on same switch HW, can't offload forwarding.

Hence, fix it by setting switch id for each PF and VF representors port
as before the cited commit.

Fixes: 71ad8d55f8 ("devlink: Replace devlink_port_attrs_set parameters with a struct")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
2020-07-16 16:36:31 -07:00
Vladimir Oltean
89e35f66d5 net: mscc: ocelot: rethink Kconfig dependencies again
Having the users of MSCC_OCELOT_SWITCH_LIB depend on REGMAP_MMIO was a
bad idea, since that symbol is not user-selectable. So we should have
kept a 'select REGMAP_MMIO'.

When we do that, we run into 2 more problems:

- By depending on GENERIC_PHY, we are causing a recursive dependency.
  But it looks like GENERIC_PHY has no other dependencies, and other
  drivers select it, so we can select it too:

drivers/of/Kconfig:69:error: recursive dependency detected!
drivers/of/Kconfig:69:  symbol OF_IRQ depends on IRQ_DOMAIN
kernel/irq/Kconfig:68:  symbol IRQ_DOMAIN is selected by REGMAP
drivers/base/regmap/Kconfig:7:  symbol REGMAP default is visible depending on REGMAP_MMIO
drivers/base/regmap/Kconfig:39: symbol REGMAP_MMIO is selected by MSCC_OCELOT_SWITCH_LIB
drivers/net/ethernet/mscc/Kconfig:15:   symbol MSCC_OCELOT_SWITCH_LIB is selected by MSCC_OCELOT_SWITCH
drivers/net/ethernet/mscc/Kconfig:22:   symbol MSCC_OCELOT_SWITCH depends on GENERIC_PHY
drivers/phy/Kconfig:8:  symbol GENERIC_PHY is selected by PHY_BCM_NS_USB3
drivers/phy/broadcom/Kconfig:41:        symbol PHY_BCM_NS_USB3 depends on MDIO_BUS
drivers/net/phy/Kconfig:13:     symbol MDIO_BUS depends on MDIO_DEVICE
drivers/net/phy/Kconfig:6:      symbol MDIO_DEVICE is selected by PHYLIB
drivers/net/phy/Kconfig:254:    symbol PHYLIB is selected by ARC_EMAC_CORE
drivers/net/ethernet/arc/Kconfig:19:    symbol ARC_EMAC_CORE is selected by ARC_EMAC
drivers/net/ethernet/arc/Kconfig:25:    symbol ARC_EMAC depends on OF_IRQ

- By depending on PHYLIB, we are causing a recursive dependency. PHYLIB
  only has a single dependency, "depends on NETDEVICES", which we are
  already depending on, so we can again hack our way into conformance by
  turning the PHYLIB dependency into a select.

drivers/of/Kconfig:69:error: recursive dependency detected!
drivers/of/Kconfig:69:  symbol OF_IRQ depends on IRQ_DOMAIN
kernel/irq/Kconfig:68:  symbol IRQ_DOMAIN is selected by REGMAP
drivers/base/regmap/Kconfig:7:  symbol REGMAP default is visible depending on REGMAP_MMIO
drivers/base/regmap/Kconfig:39: symbol REGMAP_MMIO is selected by MSCC_OCELOT_SWITCH_LIB
drivers/net/ethernet/mscc/Kconfig:15:   symbol MSCC_OCELOT_SWITCH_LIB is selected by MSCC_OCELOT_SWITCH
drivers/net/ethernet/mscc/Kconfig:22:   symbol MSCC_OCELOT_SWITCH depends on PHYLIB
drivers/net/phy/Kconfig:254:    symbol PHYLIB is selected by ARC_EMAC_CORE
drivers/net/ethernet/arc/Kconfig:19:    symbol ARC_EMAC_CORE is selected by ARC_EMAC
drivers/net/ethernet/arc/Kconfig:25:    symbol ARC_EMAC depends on OF_IRQ

Fixes: f4d0323bae ("net: mscc: ocelot: convert MSCC_OCELOT_SWITCH into a library")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-16 12:46:00 -07:00
John Ogness
632ca50f2c af_packet: TPACKET_V3: replace busy-wait loop
A busy-wait loop is used to implement waiting for bits to be copied
from the skb to the kernel buffer before retiring a block. This is
a problem on PREEMPT_RT because the copying task could be preempted
by the busy-waiting task and thus live lock in the busy-wait loop.

Replace the busy-wait logic with an rwlock_t. This provides lockdep
coverage and makes the code RT ready.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-16 11:40:39 -07:00
Jakub Kicinski
999cf8aeb6 Merge branch 'net-fec-a-few-improvements'
Sergey Organov says:

====================
net: fec: a few improvements

This is a collection of simple improvements that reduce and/or
simplify code. They got developed out of attempt to use DP83640 PTP
PHY connected to built-in FEC (that has its own PTP support) of the
iMX 6SX micro-controller. The primary bug-fix was now submitted
separately, and this is the rest of the changes.

NOTE: the patches are developed and tested on 4.9.146, and rebased on
top of recent 'net-next/master', where, besides visual inspection, I
only tested that they do compile.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-16 11:34:06 -07:00
Sergey Organov
31bb1a560b net: fec: replace snprintf() with strlcpy() in fec_ptp_init()
No need to use snprintf() on a constant string, nor using magic
constant in the fixed code was a good idea.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-16 11:32:03 -07:00
Sergey Organov
2b80308886 net: fec: get rid of redundant code in fec_ptp_set()
Code of the form "if(x) x = 0" replaced with "x = 0".

Code of the form "if(x == a) x = a" removed.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-16 11:31:58 -07:00
Sergey Organov
199560343e net: fec: initialize clock with 0 rather than current kernel time
Initializing with 0 makes it much easier to identify time stamps from
otherwise uninitialized clock.

Initialization of PTP clock with current kernel time makes little sense as
PTP time scale differs from UTC time scale that kernel time represents.
It only leads to confusion when no actual PTP initialization happens, as
these time scales differ in a small integer number of seconds (37 at the
time of writing.)

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-16 11:31:54 -07:00
Sergey Organov
e53a57e56f net: fec: enable to use PPS feature without time stamping
PPS feature could be useful even when hardware time stamping
of network packets is not in use, so remove offending check
for this condition from fec_ptp_enable_pps().

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-16 11:31:43 -07:00
Randy Dunlap
59632b220f net: ipv6: drop duplicate word in comment
Drop the doubled word "by" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 20:34:11 -07:00
Randy Dunlap
d86f9868bd net: sctp: drop duplicate words in comments
Drop doubled words in several comments.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 20:34:11 -07:00
Randy Dunlap
4b48b0a3aa net: ip6_fib.h: drop duplicate word in comment
Drop doubled word "the" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 20:34:11 -07:00
Randy Dunlap
ab88d64a90 net: dsa.h: drop duplicate word in comment
Drop doubled word "to" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 20:34:11 -07:00
Randy Dunlap
c201324b54 net: caif: drop duplicate words in comments
Drop doubled words "or" and "the" in several comments.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 20:34:11 -07:00
Randy Dunlap
cee50c2a02 net: 9p: drop duplicate word in comment
Drop doubled word "not" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 20:34:11 -07:00
Randy Dunlap
158e896391 net: wimax: fix duplicate words in comments
Drop doubled words in two comments.
Fix a spello/typo.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 20:34:02 -07:00
Randy Dunlap
2ff17117e6 net: skbuff.h: drop duplicate words in comments
Drop doubled words in several comments.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 20:28:42 -07:00
Randy Dunlap
0d80b76184 net: qed: drop duplicate words in comments
Drop doubled word "the" in two comments.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 20:28:39 -07:00
Kieran Bingham
404fc93d4a drivers: net: wan: Fix trivial spelling
The word 'descriptor' is misspelled throughout the tree.

Fix it up accordingly:
    decriptor -> descriptor

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:18:21 -07:00
Jakub Kicinski
4b7150040a Merge branch 'mlxsw-reg-add-policer-bandwidth-limits'
Ido Schimmel says:

====================
mlxsw: Offload tc police action

This patch set adds support for tc police action in mlxsw.

Patches #1-#2 add defines for policer bandwidth limits and resource
identifiers (e.g., maximum number of policers).

Patch #3 adds a common policer core in mlxsw. Currently it is only used
by the policy engine, but future patch sets will use it for trap
policers and storm control policers. The common core allows us to share
common logic between all policer types and abstract certain details from
the various users in mlxsw.

Patch #4 exposes the maximum number of supported policers and their
current usage to user space via devlink-resource. This provides better
visibility and also used for selftests purposes.

Patches #5-#7 gradually add support for tc police action in the policy
engine by calling into previously mentioned policer core.

Patch #8 adds a generic selftest for tc-police that can be used with
veth pairs or physical loopbacks.

Patches #9-#11 add mlxsw-specific selftests.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:41 -07:00
Ido Schimmel
46b171d7d7 selftests: mlxsw: Test policers' occupancy
Test that policers shared by different tc filters are correctly
reference counted by observing policers' occupancy via devlink-resource.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel
5061e77326 selftests: mlxsw: Add scale test for tc-police
Query the maximum number of supported policers using devlink-resource
and test that this number can be reached by configuring tc filters with
police action. Test that an error is returned in case the maximum number
is exceeded.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel
cb12d17632 selftests: mlxsw: tc_restrictions: Test tc-police restrictions
Test that upper and lower limits on rate and burst size imposed by the
device are rejected by the kernel.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel
afe231d32e selftests: forwarding: Add tc-police tests
Test tc-police action in various scenarios such as Rx policing, Tx
policing, shared policer and police piped to mirred. The test passes
with both veth pairs and loopbacked ports.

# ./tc_police.sh
TEST: police on rx                                                  [ OK ]
TEST: police on tx                                                  [ OK ]
TEST: police with shared policer - rx                               [ OK ]
TEST: police with shared policer - tx                               [ OK ]
TEST: police rx and mirror                                          [ OK ]
TEST: police tx and mirror                                          [ OK ]

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel
af11e818a7 mlxsw: spectrum_acl: Offload FLOW_ACTION_POLICE
Offload action police when used with a flower classifier. The number of
dropped packets is read from the policer and reported to tc.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel
deee0abc70 mlxsw: core_acl_flex_actions: Add police action
Add core functionality required to support police action in the policy
engine.

The utilized hardware policers are stored in a hash table keyed by the
flow action index. This allows to support policer sharing between
multiple ACL rules.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel
d25b8f6ebc mlxsw: core_acl_flex_actions: Work around hardware limitation
In the policy engine, each ACL rule points to an action block where the
ACL actions are stored. Each action block consists of one or more action
sets. Each action set holds one or more individual actions, up to a
maximum queried from the device. For example:

                        Action set #1               Action set #2

+----------+          +--------------+            +--------------+
| ACL rule +---------->  Action #1   |      +----->  Action #4   |
+----------+          +--------------+      |     +--------------+
                      |  Action #2   |      |     |  Action #5   |
                      +--------------+      |     +--------------+
                      |  Action #3   +------+     |              |
                      +--------------+            +--------------+

                      <---------+ Action block +----------------->

The hardware has a limitation that prevents a policing action
(MLXSW_AFA_POLCNT_CODE when used with a policer, not a counter) from
being configured in the same action set with a trap action (i.e.,
MLXSW_AFA_TRAP_CODE or MLXSW_AFA_TRAPWU_CODE). Note that the latter used
to implement multiple actions: 'trap', 'mirred', 'drop'.

Work around this limitation by teaching mlxsw_afa_block_append_action()
to create a new action set not only when there is no more room left in
the current set, but also when there is a conflict between previously
mentioned actions.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel
bf038f0372 mlxsw: spectrum_policer: Add devlink resource support
Expose via devlink-resource the maximum number of single-rate policers
and their current occupancy. Example:

$ devlink resource show pci/0000:01:00.0
...
  name global_policers size 1000 unit entry dpipe_tables none
    resources:
      name single_rate_policers size 968 occ 0 unit entry dpipe_tables none

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel
8d3fbae70d mlxsw: spectrum_policer: Add policer core
Add common code to handle all policer-related functionality in mlxsw.
Currently, only policer for policy engines are supported, but it in the
future more policer families will be added such as CPU (trap) policers
and storm control policers.

The API allows different modules to add / delete policers and read their
drop counter.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel
1b744fc9f8 mlxsw: resources: Add resource identifier for global policers
Add a resource identifier for maximum global policers so that it could
be later used to query the information from firmware.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:09:59 -07:00
Ido Schimmel
fbf0f5d185 mlxsw: reg: Add policer bandwidth limits
Add policer bandwidth limits for both rate and burst size so that they
could be enforced by a later patch.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:09:59 -07:00
Luo bin
5e126e7c4e hinic: add firmware update support
add support to update firmware by the devlink flashing API

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:06:44 -07:00
Suraj Upadhyay
514d09529d decnet: dn_dev: Remove an unnecessary label.
Remove the unnecessary label from dn_dev_ioctl() and make its error
handling simpler to read.

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:03:28 -07:00
Vladimir Oltean
94d9f78f4d docs: networking: timestamping: add section for stacked PHC devices
The concept of timestamping DSA switches / Ethernet PHYs is becoming
more and more popular, however the Linux kernel timestamping code has
evolved quite organically and there's layers upon layers of new and old
code that need to work together for things to behave as expected.

Add this chapter to explain what the overall goals are.

Loosely based upon this email discussion plus some more info:
https://lkml.org/lkml/2020/7/6/481

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 17:51:30 -07:00
Alexander A. Klimov
e63a228284 net: sundance: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 17:41:34 -07:00
YueHaibing
8635764bcf netpoll: Remove unused inline function netpoll_netdev_init()
commit d565b0a1a9 ("net: Add Generic Receive Offload infrastructure")
left behind this, remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-15 07:45:25 -07:00
YueHaibing
0d40efabe3 mptcp: Remove unused inline function mptcp_rcv_synsent()
commit 263e1201a2 ("mptcp: consolidate synack processing.")
left behind this, remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-15 07:45:24 -07:00
YueHaibing
054848d21b net: flow: Remove unused inline function
It is not used since commit 09c7570480 ("xfrm: remove flow cache")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-15 07:45:24 -07:00