1156908 Commits

Author SHA1 Message Date
Thomas Weißschuh
b279351705 net-sysfs: make kobj_type structures constant
Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.

Take advantage of this to constify the structure definitions to prevent
modification at runtime.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-14 20:48:08 -08:00
Thomas Weißschuh
e8c6cbd765 net: bridge: make kobj_type structure constant
Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.

Take advantage of this to constify the structure definition to prevent
modification at runtime.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-14 20:48:08 -08:00
Jakub Kicinski
56193cf96f Merge branch 'net-ipa-define-gsi-register-fields-differently'
Alex Elder says:

====================
net: ipa: define GSI register fields differently

Now that we have "reg" definitions in place to define GSI register
offsets, add the definitions for the fields of GSI registers that
have them.

There aren't many differences between versions, but a few fields are
present only in some versions of IPA, so additional "gsi_reg-vX.Y.c"
files are created to capture such differences.  As in the previous
series, these files are created as near-copies of existing files
just before they're needed to represent these differences.  The
first patch adds files for IPA v4.0, v4.5, and v4.9; the fifth patch
adds a file for IPA v4.11.

Note that the first and fifth patch cause some checkpatch warnings
because they align some continued lines with an open parenthesis
that at the fourth column.
====================

Link: https://lore.kernel.org/r/20230213162229.604438-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-14 20:39:41 -08:00
Alex Elder
3f3741c903 net: ipa: define fields for remaining GSI registers
Define field IDs for the remaining GSI registers, and populate the
register definition files accordingly.  Use the reg_*() functions to
access field values for those regiters, and get rid of the previous
field definition constants.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-14 20:39:39 -08:00
Alex Elder
aa07fd4358 net: ipa: add "gsi_v4.11.c"
The next patch adds a GSI register field that is only valid starting
at IPA v4.11.  Create "gsi_v4.11.c" from "gsi_v4.9.c", changing only
the name of the public regs structure it defines.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-14 20:39:39 -08:00
Alex Elder
edc6158b18 net: ipa: define fields for event-ring related registers
Define field IDs for the EV_CH_E_CNTXT_0 and EV_CH_E_CNTXT_8 GSI
registers, and populate the register definition files accordingly.
Use the reg_*() functions to access field values for those regiters,
and get rid of the previous field definition constants.

The remaining EV_CH_E_CNTXT_* registers are written with full 32-bit
values (and have no fields).

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-14 20:39:38 -08:00
Alex Elder
330ce9d346 net: ipa: define more fields for GSI registers
Beyond the CH_C_QOS register, two other registers whose offset is
related to channel number have fields within them.

Define the fields within the CH_C_CNTXT_0 GSI register, using an
enumerated type to identify the register's fields, and define an
array of field masks to use for that register's reg structure.

For the CH_C_CNTXT_1 GSI register, ch_c_cntxt_1_length_encode()
previously hid the difference in bit width in the channel ring
length field.  Instead, define a new field CH_R_LENGTH and encode
the ring size with reg_encode().

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-14 20:39:38 -08:00
Alex Elder
f50ca7cef7 net: ipa: define GSI CH_C_QOS register fields
Define the fields within the CH_C_QOS GSI register using an array of
field masks in that register's reg structure.  Use the reg functions
for encoding values in those fields.

One field in the register is present for IPA v4.0-4.2 only, two
others are present starting at IPA v4.5, and one more is there
starting at IPA v4.9.

Drop the "GSI_" prefix in symbols defined in the gsi_prefetch_mode
enumerated type, and define their values using decimal rather than
hexidecimal values.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-14 20:39:38 -08:00
Alex Elder
4a4270cff6 net: ipa: populate more GSI register files
Create "gsi_v4.0.c", "gsi_v4.5.c", and "gsi_v4.9.c" as essentially
identical copies of "gsi_v3.5.1.c".  The only difference is the name
of the exported "gsi_regs_vX_Y" structure.  The next patch will
start differentiating them.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-14 20:39:38 -08:00
Jiri Pirko
2edd925704 devlink: don't allow to change net namespace for FW_ACTIVATE reload action
The change on network namespace only makes sense during re-init reload
action. For FW activation it is not applicable. So check if user passed
an ATTR indicating network namespace change request and forbid it.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230213115836.3404039-1-jiri@resnulli.us
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 14:04:21 +01:00
Michael Kelley
dca5161f9b hv_netvsc: Check status in SEND_RNDIS_PKT completion message
Completion responses to SEND_RNDIS_PKT messages are currently processed
regardless of the status in the response, so that resources associated
with the request are freed.  While this is appropriate, code bugs that
cause sending a malformed message, or errors on the Hyper-V host, go
undetected. Fix this by checking the status and outputting a rate-limited
message if there is an error.

Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://lore.kernel.org/r/1676264881-48928-1-git-send-email-mikelley@microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 13:56:56 +01:00
Paolo Abeni
991cbd4f34 Merge branch 'add-support-for-per-action-hw-stats'
Oz Shlomo says:

====================
add support for per action hw stats

There are currently two mechanisms for populating hardware stats:
1. Using flow_offload api to query the flow's statistics.
   The api assumes that the same stats values apply to all
   the flow's actions.
   This assumption breaks when action drops or jumps over following
   actions.
2. Using hw_action api to query specific action stats via a driver
   callback method. This api assures the correct action stats for
   the offloaded action, however, it does not apply to the rest of the
   actions in the flow's actions array, as elaborated below.

The current hw_action api does not apply to the following use cases:
1. Actions that are implicitly created by filters (aka bind actions).
   In the following example only one counter will apply to the rule:
   tc filter add dev $DEV prio 2 protocol ip parent ffff: \
        flower ip_proto tcp dst_ip $IP2 \
        action police rate 1mbit burst 100k conform-exceed drop/pipe \
        action mirred egress redirect dev $DEV2

2. Action preceding a hw action.
   In the following example the same flow stats will apply to the sample and
   mirred actions:
    tc action add police rate 1mbit burst 100k conform-exceed drop / pipe
    tc filter add dev $DEV prio 2 protocol ip parent ffff: \
        flower ip_proto tcp dst_ip $IP2 \
        action sample rate 1 group 10 trunc 60 pipe \
        action police index 1 \
        action mirred egress redirect dev $DEV2

3. Meter action using jump control.
   In the following example the same flow stats will apply to both
   mirred actions:
    tc action add police rate 1mbit burst 100k conform-exceed jump 2 / pipe
    tc filter add dev $DEV prio 2 protocol ip parent ffff: \
        flower ip_proto tcp dst_ip $IP2 \
        action police index 1 \
        action mirred egress redirect dev $DEV2
        action mirred egress redirect dev $DEV3

This series provides the platform to query per action stats for in_hw flows.

The first four patches are preparation patches with no functionality change.
The fifth patch re-uses the existing flow action stats api to query action
stats for both classifier and action dumps.
The rest of the patches add per action stats support to the Mellanox driver.
====================

Link: https://lore.kernel.org/r/20230212132520.12571-1-ozsh@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 11:00:04 +01:00
Oz Shlomo
2b68d659a7 net/mlx5e: TC, support per action stats
Extend the action stats callback implementation to update stats for actions
that are associated with hw counters.
Note that the callback may be called from tc action utility or from tc
flower. Both apis expect the driver to return the stats difference from
the last update. As such, query the raw counter value and maintain
the diff from the last api call in the tc layer, instead of the fs_core
layer.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 11:00:01 +01:00
Oz Shlomo
d13674b1d1 net/mlx5e: TC, map tc action cookie to a hw counter
Currently a hardware counter is associated with a flow cookie.
This does not apply to flows using branching action which are required to
return per action stats.

A single counter may apply to multiple actions.
Scan the flow actions in reverse (from the last to the first action) while
caching the last counter.
Associate all the flow attribute tc action cookies with the current
cached counter.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 11:00:01 +01:00
Oz Shlomo
cca7eac138 net/mlx5e: TC, store tc action cookies per attr
The tc parse action phase translates the tc actions to mlx5 flow
attributes data structure that is used during the flow offload phase.
Currently, the flow offload stage instantiates hw counters while
associating them to flow cookie. However, flows with branching
actions are required to associate a hardware counter with its action
cookies.

Store the parsed tc action cookies on the flow attribute.
Use the list of cookies in the next patch to associate a tc action cookie
with its allocated hw counter.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 11:00:01 +01:00
Oz Shlomo
e9d1061d87 net/mlx5e: TC, add hw counter to branching actions
Currently a hw count action is appended to the last action of the action
list. However, a branching action may terminate the action list before
reaching the last action.

Append a count action to a branching action.
In the next patches, filters with branching actions will read this counter
when reporting stats per action.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 11:00:01 +01:00
Oz Shlomo
5246c896b8 net/sched: support per action hw stats
There are currently two mechanisms for populating hardware stats:
1. Using flow_offload api to query the flow's statistics.
   The api assumes that the same stats values apply to all
   the flow's actions.
   This assumption breaks when action drops or jumps over following
   actions.
2. Using hw_action api to query specific action stats via a driver
   callback method. This api assures the correct action stats for
   the offloaded action, however, it does not apply to the rest of the
   actions in the flow's actions array.

Extend the flow_offload stats callback to indicate that a per action
stats update is required.
Use the existing flow_offload_action api to query the action's hw stats.
In addition, currently the tc action stats utility only updates hw actions.
Reuse the existing action stats cb infrastructure to query any action
stats.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 11:00:01 +01:00
Oz Shlomo
d307b2c6f9 net/sched: introduce flow_offload action cookie
Currently a hardware action is uniquely identified by the <id, hw_index>
tuple. However, the id is set by the flow_act_setup callback and tc core
cannot enforce this, and it is possible that a future change could break
this. In addition, <id, hw_index> are not unique across network namespaces.

Uniquely identify the action by setting an action cookie by the tc core.
Use the unique action cookie to query the action's hardware stats.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 11:00:01 +01:00
Oz Shlomo
ac7d27907d net/sched: pass flow_stats instead of multiple stats args
Instead of passing 6 stats related args, pass the flow_stats.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 11:00:01 +01:00
Oz Shlomo
3320f36fd8 net/sched: act_pedit, setup offload action for action stats query
A single tc pedit action may be translated to multiple flow_offload
actions.
Offload only actions that translate to a single pedit command value.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 11:00:01 +01:00
Oz Shlomo
8f2ca70c07 net/sched: optimize action stats api calls
Currently the hw action stats update is called from tcf_exts_hw_stats_update,
when a tc filter is dumped, and from tcf_action_copy_stats, when a hw
action is dumped.
However, the tcf_action_copy_stats is also called from tcf_action_dump.
As such, the hw action stats update cb is called 3 times for every
tc flower filter dump.

Move the tc action hw stats update from tcf_action_copy_stats to
tcf_dump_walker to update the hw action stats when tc action is dumped.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 11:00:00 +01:00
Arınç ÜNAL
a71fad0fd8 dt-bindings: net: dsa: mediatek,mt7530: improve binding description
Fix inaccurate information about PHY muxing, and merge standalone and
multi-chip module MT7530 configuration methods.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230212131258.47551-1-arinc.unal@arinc9.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 10:51:09 +01:00
Jakub Kicinski
64816aa768 Merge branch 'ipv6-more-drop-reason'
Eric Dumazet says:

====================
ipv6: more drop reason

Add more drop reasons to IPv6:

 - IPV6_BAD_EXTHDR
 - IPV6_NDISC_FRAG
 - IPV6_NDISC_HOP_LIMIT
 - IPV6_NDISC_BAD_CODE
====================

Link: https://lore.kernel.org/r/20230210184708.2172562-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:55:35 -08:00
Eric Dumazet
545dbcd124 ipv6: icmp6: add drop reason support to ndisc_rcv()
Creates three new drop reasons:

SKB_DROP_REASON_IPV6_NDISC_FRAG: invalid frag (suppress_frag_ndisc).

SKB_DROP_REASON_IPV6_NDISC_HOP_LIMIT: invalid hop limit.

SKB_DROP_REASON_IPV6_NDISC_BAD_CODE: invalid NDISC icmp6 code.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:55:32 -08:00
Eric Dumazet
30c89bad3e ipv6: icmp6: add drop reason support to icmpv6_notify()
Accurately reports what happened in icmpv6_notify() when handling
a packet.

This makes use of the new IPV6_BAD_EXTHDR drop reason.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:55:32 -08:00
Eric Dumazet
1fb2d41501 net: add pskb_may_pull_reason() helper
pskb_may_pull() can fail for two different reasons.

Provide pskb_may_pull_reason() helper to distinguish
between these reasons.

It returns:

SKB_NOT_DROPPED_YET           : Success
SKB_DROP_REASON_PKT_TOO_SMALL : packet too small
SKB_DROP_REASON_NOMEM         : skb->head could not be resized

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:55:32 -08:00
Eric Dumazet
dc68eaf2c2 net: dropreason: add SKB_DROP_REASON_IPV6_BAD_EXTHDR
This drop reason can be used whenever an IPv6 packet
has a malformed extension header.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:55:32 -08:00
Uwe Kleine-König
1a940b0001 net: stmmac: dwc-qos: Make struct dwc_eth_dwmac_data::remove return void
All implementations of the remove callback return 0 unconditionally. So
in dwc_eth_dwmac_remove() there is no error handling necessary. Simplify
accordingly.

This is a preparation for making struct platform_driver::remove return
void, too.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230211112431.214252-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:50:43 -08:00
Uwe Kleine-König
ff0011cf56 net: stmmac: Make stmmac_dvr_remove() return void
The function returns zero unconditionally. Change it to return void instead
which simplifies some callers as error handing becomes unnecessary.

This also makes it more obvious that most platform remove callbacks always
return zero.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230211112431.214252-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:50:43 -08:00
Lorenzo Bianconi
1dc5592329 net: mvneta: do not set xdp_features for hw buffer devices
Devices with hardware buffer management do not support XDP, so do not
set xdp_features for them.

Fixes: 66c0e13ad236 ("drivers: net: turn on XDP features")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/19b5838bb3e4515750af822edb2fa5e974d0a86b.1676196230.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:49:00 -08:00
Lorenzo Bianconi
450bdf5bd6 hv_netvsc: add missing NETDEV_XDP_ACT_NDO_XMIT xdp-features flag
Add missing ndo_xdp_xmit bit to xdp_features capability flag.

Fixes: 66c0e13ad236 ("drivers: net: turn on XDP features")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/8e3747018f0fd0b5d6e6b9aefe8d9448ca3a3288.1676195726.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:48:45 -08:00
Lorenzo Bianconi
c758fedf08 net: stmmac: add missing NETDEV_XDP_ACT_XSK_ZEROCOPY bit to xdp_features
Add missing xsk zero-copy bit to xdp_features capability flag.

Fixes: 66c0e13ad236 ("drivers: net: turn on XDP features")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/c8949baafdf617188dcedb9033ce5a9ca6e9e5ff.1676195440.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:47:32 -08:00
Christophe JAILLET
511b88feda net: ethernet: mtk_wed: No need to clear memory after a dma_alloc_coherent() call
dma_alloc_coherent() already clears the allocated memory, there is no need
to explicitly call memset().

Moreover, it is likely that the size in the memset() is incorrect and
should be "size * sizeof(*ring->desc)".

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/d5acce7dd108887832c9719f62c7201b4c83b3fb.1676184599.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 19:45:46 -08:00
Lorenzo Bianconi
ef01749f6a net: lan966x: set xdp_features flag
Set xdp_features netdevice flag if lan966x nic supports xdp mode.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/01f4412f28899d97b0054c9c1a63694201301b42.1676055718.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-13 17:16:59 -08:00
David S. Miller
9b0bf4f771 Merge branch 'ksz9477-eee-support'
Oleksij Rempel says:

====================
net: add EEE support for KSZ9477 switch family

changes v8:
- fix comment for linkmode_to_mii_eee_cap1_t() function
- add Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com>
- add Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>

changes v7:
- update documentation for genphy_c45_eee_is_active()
- address review comments on "net: dsa: microchip: enable EEE support"
  patch

changes v6:
- split patch set and send only first 9 patches
- Add Reviewed-by: Andrew Lunn <andrew@lunn.ch>
- use 0xffff instead of GENMASK
- Document @supported_eee
- use "()" with function name in comments

changes v5:
- spell fixes
- move part of genphy_c45_read_eee_abilities() to
  genphy_c45_read_eee_cap1()
- validate MDIO_PCS_EEE_ABLE register against 0xffff val.
- rename *eee_100_10000* to *eee_cap1*
- use linkmode_intersects(phydev->supported, PHY_EEE_CAP1_FEATURES)
  instead of !linkmode_empty()
- add documentation to linkmode/register helpers

changes v4:
- remove following helpers:
  mmd_eee_cap_to_ethtool_sup_t
  mmd_eee_adv_to_ethtool_adv_t
  ethtool_adv_to_mmd_eee_adv_t
  and port drivers from this helpers to linkmode helpers.
- rebase against latest net-next
- port phy_init_eee() to genphy_c45_eee_is_active()

changes v3:
- rework some parts of EEE infrastructure and move it to c45 code.
- add supported_eee storage and start using it in EEE code and by the
  micrel driver.
- add EEE support for ar8035 PHY
- add SmartEEE support to FEC i.MX series.

changes v2:
- use phydev->supported instead of reading MII_BMSR regiaster
- fix @get_eee > @set_eee

With this patch series we provide EEE control for KSZ9477 family of
switches and
AR8035 with i.MX6 configuration.
According to my tests, on a system with KSZ8563 switch and 100Mbit idle
link,
we consume 0,192W less power per port if EEE is enabled.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:12:31 +00:00
Oleksij Rempel
8b68710a31 net: phy: start using genphy_c45_ethtool_get/set_eee()
All preparations are done. Now we can start using new functions and remove
the old code.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:12:31 +00:00
Oleksij Rempel
6340f9fd43 net: phy: migrate phy_init_eee() to genphy_c45_eee_is_active()
Reduce code duplicated by migrating phy_init_eee() to
genphy_c45_eee_is_active().

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:12:31 +00:00
Oleksij Rempel
5827b16812 net: phy: c45: migrate to genphy_c45_write_eee_adv()
Migrate from genphy_config_eee_advert() to genphy_c45_write_eee_adv().

It should work as before except write operation to the EEE adv registers
will be done only if some EEE abilities was detected.

If some driver will have a regression, related driver should provide own
.get_features callback. See micrel.c:ksz9477_get_features() as example.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:12:31 +00:00
Oleksij Rempel
9b01c885be net: phy: c22: migrate to genphy_c45_write_eee_adv()
Migrate from genphy_config_eee_advert() to genphy_c45_write_eee_adv().

It should work as before except write operation to the EEE adv registers
will be done only if some EEE abilities was detected.

If some driver will have a regression, related driver should provide own
.get_features callback. See micrel.c:ksz9477_get_features() as example.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:12:31 +00:00
Oleksij Rempel
022c3f87f8 net: phy: add genphy_c45_ethtool_get/set_eee() support
Add replacement for phy_ethtool_get/set_eee() functions.

Current phy_ethtool_get/set_eee() implementation is great and it is
possible to make it even better:
- this functionality is for devices implementing parts of IEEE 802.3
  specification beyond Clause 22. The better place for this code is
  phy-c45.c
- currently it is able to do read/write operations on PHYs with
  different abilities to not existing registers. It is better to
  use stored supported_eee abilities to avoid false read/write
  operations.
- the eee_active detection will provide wrong results on not supported
  link modes. It is better to validate speed/duplex properties against
  supported EEE link modes.
- it is able to support only limited amount of link modes. We have more
  EEE link modes...

By refactoring this code I address most of this point except of the last
one. Adding additional EEE link modes will need more work.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:12:31 +00:00
Oleksij Rempel
cf9f607969 net: phy: export phy_check_valid() function
This function will be needed for genphy_c45_ethtool_get_eee() provided
by next patch.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:12:31 +00:00
Oleksij Rempel
48fb19940f net: phy: micrel: add ksz9477_get_features()
KSZ8563R, which has same PHYID as KSZ9477 family, will change "EEE control
and capability 1" (Register 3.20) content depending on configuration of
"EEE advertisement 1" (Register 7.60). Changes on the 7.60 will affect
3.20 register.

So, instead of depending on register 3.20, driver should set supported_eee.

Proper supported_eee configuration is needed to make use of generic
PHY c45 set/get_eee functions provided by next patches.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:12:31 +00:00
Oleksij Rempel
14e47d1fb8 net: phy: add genphy_c45_read_eee_abilities() function
Add generic function for EEE abilities defined by IEEE 802.3
specification. For now following registers are supported:
- IEEE 802.3-2018 45.2.3.10 EEE control and capability 1 (Register 3.20)
- IEEE 802.3cg-2019 45.2.1.186b 10BASE-T1L PMA status register
  (Register 1.2295)

Since I was not able to find any flag signaling support of these
registers, we should detect link mode abilities first and then based on
these abilities doing EEE link modes detection.

Results of EEE ability detection will be stored into new variable
phydev->supported_eee.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:12:31 +00:00
Oleksij Rempel
69d3b36ca0 net: dsa: microchip: enable EEE support
Some of KSZ9477 family switches provides EEE support. To enable it, we
just need to register set_mac_eee/set_mac_eee handlers and validate
supported chip version and port.

Currently supported chip variants are: KSZ8563, KSZ9477, KSZ9563,
KSZ9567, KSZ9893, KSZ9896, KSZ9897. KSZ8563 supports EEE only with
100BaseTX/Full.  Other chips support 100BaseTX/Full and 1000BaseTX/Full.
Low Power Idle configuration is not supported and currently not
documented in the datasheets.

EEE PHY specific tunings are not documented in the switch datasheets, but can
overlap with KSZ9131 specification.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:12:31 +00:00
David S. Miller
79cdf17e51 Merge branch 'ionic-on-chip-desc'
Shannon Nelson says:

====================
ionic: on-chip descriptors

We start with a couple of house-keeping patches that were originally
presented for 'net', then we add support for on-chip descriptor rings
for tx-push, as well as adding support for rx-push.

I have a patch for the ethtool userland utility that I can send out
once this has been accepted.

v4: added rx-push attributes to ethtool netlink
    converted CMB feature from using a priv-flag to using ethtool tx/rx-push

v3: edited commit message to describe interface-down limitation
    added warn msg if cmb_inuse alloc fails
    removed unnecessary clearing of phy_cmb_pages and cmb_npages
    changed cmb_rings_toggle to use cmb_inuse
    removed unrelated pci_set_drvdata()
    removed unnecessary (u32) cast
    added static inline func for writing CMB descriptors

v2: dropped the rx buffers patch
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:05:12 +00:00
Shannon Nelson
40bc471dc7 ionic: add tx/rx-push support with device Component Memory Buffers
The ionic device has on-board memory (CMB) that can be used
for descriptors as a way to speed descriptor access for faster
packet processing.  It is rumored to improve latency and/or
packets-per-second for some profiles of small packet traffic,
although your mileage may vary.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:05:12 +00:00
Shannon Nelson
5b4e9a7a71 net: ethtool: extend ringparam set/get APIs for rx_push
Similar to what was done for TX_PUSH, add an RX_PUSH concept
to the ethtool interfaces.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:05:12 +00:00
Shannon Nelson
896de449f8 ionic: remove unnecessary void casts
Minor Code cleanup details.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:05:11 +00:00
Shannon Nelson
7bb990097d ionic: remove unnecessary indirection
We have the pointer already, don't need to go through the
lif struct for it.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 11:05:11 +00:00
David S. Miller
8024edf359 Merge branch 'net-ipa-GSI-regs'
Alex Elder says:

====================
net: ipa: determine GSI register offsets differently

This series changes the way GSI register offset are specified, using
the "reg" mechanism currently used for IPA registers.  A follow-on
series will extend this work so fields within GSI registers are also
specified this way.

The first patch rearranges the GSI register initialization code so
it is similar to the way it's done for the IPA registers.  The
second identifies all the GSI registers in an enumerated type.
The third introduces "gsi_reg-v3.1.c" and uses the "reg" code to
define one GSI register offset.  The second-to-last patch just
adds "gsi_reg-v3.5.1.c", because that version introduces a new
register not previously defined.  All the rest just define the
rest of the GSI register offsets using the "reg" mechanism.

Note that, to have continued lines align with an open parenthesis,
new files created in this series cause some checkpatch warnings.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 09:56:17 +00:00