Commit Graph

872568 Commits

Author SHA1 Message Date
Egor Pomozov
7db3d07afd net: aquantia: add support for ptp ioctls
Here we add support for PTP specific IOCTLs of HW timestamp get/set.

These will use filters to configure flows onto the required queue ids.

Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:23 -07:00
Dmitry Bezrukov
5a1bf9ef51 net: aquantia: rx filters for ptp
We implement HW filter reservation for PTP traffic. Special location
in filters table is marked as reserved, because incoming ptp traffic
should be directed only to PTP designated queue. This way HW will do PTP
timestamping and proper processing.

Co-developed-by: Egor Pomozov <epomozov@marvell.com>
Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:23 -07:00
Egor Pomozov
04a1839950 net: aquantia: implement data PTP datapath
Here we do alloc/free IRQs for PTP rings.
We also implement processing of PTP packets on TX and RX sides.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
Dmitry Bezrukov
61cc502ef4 net: aquantia: styling fixes on ptp related functions
Checkpatch and styling fixes on parts of code touched by ptp

Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
Egor Pomozov
94ad94558b net: aquantia: add PTP rings infrastructure
Add implementations of PTP rings alloc/free.

PTP desing on this device uses two separate rings on a separate traffic
class for traffic rx/tx.

Third ring (hwts) is not a traffic ring, but is used only to receive timestamps
of the transmitted packets.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
Egor Pomozov
910479a9f7 net: aquantia: add basic ptp_clock callbacks
Basic HW functions implemented for adjusting frequency,
adjusting time, getting and setting time.
With these callbacks we now do register ptp clock in the system.

Firmware interface parts are defined for PTP requests and interactions.
Enable/disable PTP counters in HW on clock register/unregister.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
Dmitry Bezrukov
593f7b43bd net: aquantia: unify styling of bit enums
Make some other bit-enums more clear about positioning,
this helps on debugging and development

Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
Egor Pomozov
1a64f8dc82 net: aquantia: PTP skeleton declarations and callbacks
Here we add basic function for PTP clock register/unregister.
We also declare FW/HW capability bits used to control PTP feature on device.

PTP device is created if network card has appropriate FW that has PTP
enabled in config. HW supports timestamping for PTPv2 802.AS1 and
PTPv2 IPv4 UDP packets.

It also supports basic PTP callbacks for getting/setting time, adjusting
frequency and time as well.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
YueHaibing
337d866a80 net: lan78xx: remove set but not used variable 'event'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/usb/lan78xx.c:3995:6: warning:
 variable event set but not used [-Wunused-but-set-variable]

It is never used, so can be removed.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23 21:37:48 -07:00
David S. Miller
8ef0c0409e Merge branch 'mlxsw-Update-main-pool-computation-and-pool-size-limits'
Ido Schimmel says:

====================
mlxsw: Update main pool computation and pool size limits

Petr says:

In Spectrum ASICs, the shared buffer is an area of memory where packets are
kept until they can be transmitted. There are two resources associated with
shared buffer size: cap_total_buffer_size and cap_guaranteed_shared_buffer.
So far, mlxsw has been using the former as a limit when validating shared
buffer pool size configuration. However, the total size also includes
headrooms and reserved space, which really cannot be used for shared buffer
pools. Patch #1 mends this and has mlxsw use the guaranteed size.

To configure default pool sizes, mlxsw has historically hard-coded one or
two smallish pools, and one "main" pool that took most of the shared buffer
(that would be pool 0 on ingress and pool 4 on egress). During the
development of Spectrum-2, it became clear that the shared buffer size
keeps shrinking as bugs are identified and worked around. In order to
prevent having to tweak the size of pools 0 and 4 to catch up with updates
to values reported by the FW, patch #2 changes the way these pools are set.
Instead of hard-coding a fixed value, the main pool now takes whatever is
left from the guaranteed size after the smaller pool(s) are taken into
account.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23 21:31:31 -07:00
Petr Machata
bc9f6e94bc mlxsw: spectrum_buffers: Calculate the size of the main pool
Instead of hard-coding the size of the largest pool, calculate it from the
reported guaranteed shared buffer size and sizes of other pools (currently
only the CPU port pool).

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23 21:31:31 -07:00
Petr Machata
914c4fc1b7 mlxsw: spectrum: Use guaranteed buffer size as pool size limit
There are two resources associated with shared buffer size:
cap_total_buffer_size, and cap_guaranteed_shared_buffer. So far, mlxsw has
been using the former as a limit to determine how large a pool size is
allowed to be. However, the total size also includes headrooms and reserved
space, which really cannot be used for shared buffer pools.

Therefore convert mlxsw to use the latter resource as a limit. Adjust
hard-coded pool sizes to be the guaranteed size minus 256000 bytes for CPU
port pool. On Spectrum-1 that actually leads to an increase. A follow-up
patch will have this size calculated automatically.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23 21:31:31 -07:00
Heiner Kallweit
06cd9da58f r8169: never set PCI_EXP_DEVCTL_NOSNOOP_EN
Setting PCI_EXP_DEVCTL_NOSNOOP_EN for certain chip versions had been
added to the vendor driver more than 10 years ago, and copied from
there to r8169. It has been removed from the vendor driver meanwhile
and I think we can safely remove this too.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23 20:43:49 -07:00
David S. Miller
2ebc499a0f Merge branch 'net-phy-support-1000Base-X-auto-negotiation-for-BCM54616S'
Tao Ren says:

====================
net: phy: support 1000Base-X auto-negotiation for BCM54616S

This patch series aims at supporting auto negotiation when BCM54616S is
running in 1000Base-X mode: without the patch series, BCM54616S PHY driver
would report incorrect link speed in 1000Base-X mode.

Patch #1 (of 3) modifies assignment to OR when dealing with dev_flags in
phy_attach_direct function, so that dev_flags updated in BCM54616S PHY's
probe callback won't be lost.

Patch #2 (of 3) adds several genphy_c37_* functions to support clause 37
1000Base-X auto-negotiation, and these functions are called in BCM54616S
PHY driver.

Patch #3 (of 3) detects BCM54616S PHY's operation mode and calls according
genphy_c37_* functions to configure auto-negotiation and parse link
attributes (speed, duplex, and etc.) in 1000Base-X mode.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23 20:42:53 -07:00
Tao Ren
b9bcb95315 net: phy: broadcom: add 1000Base-X support for BCM54616S
The BCM54616S PHY cannot work properly in RGMII->1000Base-X mode, mainly
because genphy functions are designed for copper links, and 1000Base-X
(clause 37) auto negotiation needs to be handled differently.

This patch enables 1000Base-X support for BCM54616S by customizing 3
driver callbacks, and it's verified to be working on Facebook CMM BMC
platform (RGMII->1000Base-KX):

  - probe: probe callback detects PHY's operation mode based on
    INTERF_SEL[1:0] pins and 1000X/100FX selection bit in SerDES 100-FX
    Control register.

  - config_aneg: calls genphy_c37_config_aneg when the PHY is running in
    1000Base-X mode; otherwise, genphy_config_aneg will be called.

  - read_status: calls genphy_c37_read_status when the PHY is running in
    1000Base-X mode; otherwise, genphy_read_status will be called.

Note: BCM54616S PHY can also be configured in RGMII->100Base-FX mode, and
100Base-FX support is not available as of now.

Signed-off-by: Tao Ren <taoren@fb.com>
Acked-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23 20:42:52 -07:00
Heiner Kallweit
fa6e98cee5 net: phy: add support for clause 37 auto-negotiation
This patch adds support for clause 37 1000Base-X auto-negotiation.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Tao Ren <taoren@fb.com>
Tested-by: René van Dorst <opensource@vdorst.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23 20:42:52 -07:00
Tao Ren
e7312efbd5 net: phy: modify assignment to OR for dev_flags in phy_attach_direct
Modify the assignment to OR when dealing with phydev->dev_flags in
phy_attach_direct function, and this is to make sure dev_flags set in
driver's probe callback won't be lost.

Suggested-by: Andrew Lunn <andrew@lunn.ch>
CC: Heiner Kallweit <hkallweit1@gmail.com>
CC: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Tao Ren <taoren@fb.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23 20:42:52 -07:00
KP Singh
58eeb2289a libbpf: Fix strncat bounds error in libbpf_prog_type_by_name
On compiling samples with this change, one gets an error:

 error: ‘strncat’ specified bound 118 equals destination size
  [-Werror=stringop-truncation]

    strncat(dst, name + section_names[i].len,
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     sizeof(raw_tp_btf_name) - (dst - raw_tp_btf_name));
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

strncat requires the destination to have enough space for the
terminating null byte.

Fixes: f75a697e09 ("libbpf: Auto-detect btf_id of BTF-based raw_tracepoint")
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191023154038.24075-1-kpsingh@chromium.org
2019-10-23 10:17:28 -07:00
Magnus Karlsson
e0e4f8e938 xsk: Improve documentation for AF_XDP
Added sections on all the bind flags, libbpf, all the setsockopts and
all the getsockopts. Also updated the document to reflect the latest
features and to correct some spelling errors.

v1 -> v2:
* Updated XDP program with latest BTF map format
* Added one more FAQ entry
* Some minor edits and corrections

v2 -> v3:
* Simplified XDP_SHARED_UMEM example XDP program

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/1571648224-16889-1-git-send-email-magnus.karlsson@intel.com
2019-10-23 10:14:17 -07:00
Andrii Nakryiko
45e587b5e8 selftests/bpf: Fix LDLIBS order
Order of $(LDLIBS) matters to linker, so put it after all the .o and .a
files.

Fixes: 74b5a5968f ("selftests/bpf: Replace test_progs and test_maps w/ general rule")
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191023153128.3486140-1-andriin@fb.com
2019-10-23 10:09:48 -07:00
Andrii Nakryiko
9bc6384b36 selftests/bpf: Move test_section_names into test_progs and fix it
Make test_section_names into test_progs test. Also fix ESRCH expected
results. Add uprobe/uretprobe and tp/raw_tp test cases.

Fixes: dd4436bb83 ("libbpf: Teach bpf_object__open to guess program types")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191023060913.1713817-1-andriin@fb.com
2019-10-23 10:06:46 -07:00
Björn Töpel
d7d962a095 libbpf: Use implicit XSKMAP lookup from AF_XDP XDP program
In commit 43e74c0267 ("bpf_xdp_redirect_map: Perform map lookup in
eBPF helper") the bpf_redirect_map() helper learned to do map lookup,
which means that the explicit lookup in the XDP program for AF_XDP is
not needed for post-5.3 kernels.

This commit adds the implicit map lookup with default action, which
improves the performance for the "rx_drop" [1] scenario with ~4%.

For pre-5.3 kernels, the bpf_redirect_map() returns XDP_ABORTED, and a
fallback path for backward compatibility is entered, where explicit
lookup is still performed. This means a slight regression for older
kernels (an additional bpf_redirect_map() call), but I consider that a
fair punishment for users not upgrading their kernels. ;-)

v1->v2: Backward compatibility (Toke) [2]
v2->v3: Avoid masking/zero-extension by using JMP32 [3]

[1] # xdpsock -i eth0 -z -r
[2] https://lore.kernel.org/bpf/87pnirb3dc.fsf@toke.dk/
[3] https://lore.kernel.org/bpf/87v9sip0i8.fsf@toke.dk/

Suggested-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20191022072206.6318-1-bjorn.topel@gmail.com
2019-10-23 10:03:52 -07:00
Pablo Neira Ayuso
d54725cd11 netfilter: nf_tables: support for multiple devices per netdev hook
This patch allows you to register one netdev basechain to multiple
devices. This adds a new NFTA_HOOK_DEVS netlink attribute to specify
the list of netdevices. Basechains store a list of hooks.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-10-23 13:01:34 +02:00
Pablo Neira Ayuso
bbaef955af netfilter: nf_tables_offload: remove rules on unregistered device only
After unbinding the list of flow_block callbacks, iterate over it to
remove the existing rules in the netdevice that has just been
unregistered.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-10-23 13:01:32 +02:00
Pablo Neira Ayuso
c5d275276f netfilter: nf_tables_offload: add nft_flow_cls_offload_setup()
Add helper function to set up the flow_cls_offload object.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-10-23 13:01:31 +02:00
Pablo Neira Ayuso
b58288804a netfilter: nf_tables_offload: Pass callback list to nft_setup_cb_call()
This allows to reuse nft_setup_cb_call() from the callback unbind path.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-10-23 13:01:29 +02:00
Pablo Neira Ayuso
ead3952ea7 netfilter: nf_tables_offload: add nft_flow_block_chain()
Add nft_flow_block_chain() helper function to reuse this function from
netdev event handler.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-10-23 13:01:27 +02:00
Pablo Neira Ayuso
cb662ac671 netfilter: nf_tables: increase maximum devices number per flowtable
Rise the maximum limit of devices per flowtable up to 256. Rename
NFT_FLOWTABLE_DEVICE_MAX to NFT_NETDEVICE_MAX in preparation to reuse
the netdev hook parser for ingress basechain.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-10-23 13:01:26 +02:00
Pablo Neira Ayuso
b75a3e8371 netfilter: nf_tables: allow netdevice to be used only once per flowtable
Allow netdevice only once per flowtable, otherwise hit EEXIST.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-10-23 13:01:24 +02:00
Pablo Neira Ayuso
3f0465a9ef netfilter: nf_tables: dynamically allocate hooks per net_device in flowtables
Use a list of hooks per device instead an array.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-10-23 13:01:22 +02:00
Pablo Neira Ayuso
71a8a63b9d netfilter: nf_flow_table: move priority to struct nf_flowtable
Hardware offload needs access to the priority field, store this field in
the nf_flowtable object.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-10-23 13:01:03 +02:00
Eric Dumazet
406715df93 fq_codel: do not include <linux/jhash.h>
Since commit 342db22182 ("sched: Call skb_get_hash_perturb
in sch_fq_codel") we no longer need anything from this file.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 15:31:42 -07:00
Ben Dooks (Codethink)
5e5b03d163 xdp: Fix type of string pointer in __XDP_ACT_SYM_TAB
The table entry in __XDP_ACT_SYM_TAB for the last item is set
to { -1, 0 } where it should be { -1, NULL } as the second item
is a pointer to a string.

Fixes the following sparse warnings:

./include/trace/events/xdp.h:28:1: warning: Using plain integer as NULL pointer
./include/trace/events/xdp.h:53:1: warning: Using plain integer as NULL pointer
./include/trace/events/xdp.h:82:1: warning: Using plain integer as NULL pointer
./include/trace/events/xdp.h:140:1: warning: Using plain integer as NULL pointer
./include/trace/events/xdp.h:155:1: warning: Using plain integer as NULL pointer
./include/trace/events/xdp.h:190:1: warning: Using plain integer as NULL pointer
./include/trace/events/xdp.h:225:1: warning: Using plain integer as NULL pointer
./include/trace/events/xdp.h:260:1: warning: Using plain integer as NULL pointer
./include/trace/events/xdp.h:318:1: warning: Using plain integer as NULL pointer
./include/trace/events/xdp.h:356:1: warning: Using plain integer as NULL pointer
./include/trace/events/xdp.h:390:1: warning: Using plain integer as NULL pointer

Signed-off-by: Ben Dooks (Codethink) <ben.dooks@codethink.co.uk>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20191022125925.10508-1-ben.dooks@codethink.co.uk
2019-10-22 21:39:54 +02:00
Jakub Kicinski
685df9c39f Merge branch 'net-dsa-turn-arrays-of-ports-into-a-list'
Vivien Didelot says:

====================
The dsa_switch structure represents the physical switch device itself,
and is allocated by the driver. The dsa_switch_tree and dsa_port structures
represent the logical switch fabric (eventually composed of multiple switch
devices) and its ports, and are allocated by the DSA core.

This branch lists the logical ports directly in the fabric which simplifies
the iteration over all ports when assigning the default CPU port or configuring
the D in DSA in drivers like mv88e6xxx.

This also removes the unique dst->cpu_dp pointer and is a first step towards
supporting multiple CPU ports and dropping the DSA_MAX_PORTS limitation.

Because the dsa_port structures are not tied to the dsa_switch structure
anymore, we do not need to provide an helper for the drivers to allocate a
switch structure. Like in many other subsystems, drivers can now embed their
dsa_switch structure as they wish into their private structure. This will
be particularly interesting for the Broadcom drivers which were currently
limited by the dynamically allocated array of DSA ports.

The series implements the list of dsa_port structures, makes use of it,
then drops dst->cpu_dp and the dsa_switch_alloc helper.
====================

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:39:25 -07:00
Vivien Didelot
7e99e34701 net: dsa: remove dsa_switch_alloc helper
Now that ports are dynamically listed in the fabric, there is no need
to provide a special helper to allocate the dsa_switch structure. This
will give more flexibility to drivers to embed this structure as they
wish in their private structure.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:07 -07:00
Vivien Didelot
05f294a852 net: dsa: allocate ports on touch
Allocate the struct dsa_port the first time it is accessed with
dsa_port_touch, and remove the static dsa_port array from the
dsa_switch structure.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:07 -07:00
Vivien Didelot
d5a619bf60 net: dsa: sja1105: register switch before assigning port private data
Like the dsa_switch_tree structures, the dsa_port structures will be
allocated on switch registration.

The SJA1105 driver is the only one accessing the dsa_port structure
after the switch allocation and before the switch registration.
For that reason, move switch registration prior to assigning the priv
member of the dsa_port structures.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:07 -07:00
Vivien Didelot
ef2025ec0a net: dsa: mv88e6xxx: use ports list to map bridge
Instead of digging into the other dsa_switch structures of the fabric
and relying too much on the dsa_to_port helper, use the new list
of switch fabric ports to remap the Port VLAN Map of local bridge
group members or remap the Port VLAN Table entry of external bridge
group members.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:07 -07:00
Vivien Didelot
9dc8b13e23 net: dsa: mv88e6xxx: use ports list to map port VLAN
Instead of digging into the other dsa_switch structures of the fabric
and relying too much on the dsa_to_port helper, use the new list of
switch fabric ports to define the mask of the local ports allowed to
receive frames from another port of the fabric.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:07 -07:00
Vivien Didelot
d14939be8b net: dsa: mv88e6xxx: silently skip PVT ops
Since mv88e6xxx_pvt_map is a static helper, no need to return
-EOPNOTSUPP if the chip has no PVT, simply silently skip the operation.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:07 -07:00
Vivien Didelot
da4561cda2 net: dsa: use ports list to setup default CPU port
Use the new ports list instead of iterating over switches and their
ports when setting up the default CPU port. Unassign it on teardown.

Now that we can iterate over multiple CPU ports, remove dst->cpu_dp.

At the same time, provide a better error message for CPU-less tree.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:07 -07:00
Vivien Didelot
c0b736282c net: dsa: use ports list to find first CPU port
Use the new ports list instead of iterating over switches and their
ports when looking up the first CPU port in the tree.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:07 -07:00
Vivien Didelot
0cfec588ec net: dsa: use ports list to setup multiple master devices
Now that we have a potential list of CPU ports, make use of it instead
of only configuring the master device of an unique CPU port.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:07 -07:00
Vivien Didelot
764b7e6242 net: dsa: use ports list to find a port by node
Use the new ports list instead of iterating over switches and their
ports to find a port from a given node.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:07 -07:00
Vivien Didelot
86bfb2c1f4 net: dsa: use ports list for routing table setup
Use the new ports list instead of accessing the dsa_switch array
of ports when iterating over DSA ports of a switch to set up the
routing table.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:06 -07:00
Vivien Didelot
fb35c60cba net: dsa: use ports list to setup switches
Use the new ports list instead of iterating over switches and their
ports when setting up the switches and their ports.

At the same time, provide setup states and messages for ports and
switches as it is done for the trees.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:06 -07:00
Vivien Didelot
7b9a2f4bac net: dsa: use ports list to find slave
Use the new ports list instead of iterating over switches and their
ports when looking for a slave device from a given master interface.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:06 -07:00
Vivien Didelot
b96ddf254b net: dsa: use ports list in dsa_to_port
Use the new ports list instead of accessing the dsa_switch array
of ports in the dsa_to_port helper.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:06 -07:00
Vivien Didelot
ab8ccae122 net: dsa: add ports list in the switch fabric
Add a list of switch ports within the switch fabric. This will help the
lookup of a port inside the whole fabric, and it is the first step
towards supporting multiple CPU ports, before deprecating the usage of
the unique dst->cpu_dp pointer.

In preparation for a future allocation of the dsa_port structures,
return -ENOMEM in case no structure is returned, even though this
error cannot be reached yet.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:06 -07:00
Vivien Didelot
68bb8ea8ad net: dsa: use dsa_to_port helper everywhere
Do not let the drivers access the ds->ports static array directly
while there is a dsa_to_port helper for this purpose.

At the same time, un-const this helper since the SJA1105 driver
assigns the priv member of the returned dsa_port structure.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22 12:37:06 -07:00