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Currently there is no way to see packet counters on cascade ports, and
no clarity on how the API for that would look like.
Because it's something that is currently needed, just extend the hack
where ethtool -S on the conduit interface dumps CPU port counters, and
also use it to dump counters of cascade ports.
Note that the "pXX_" naming convention changes to "sXX_pYY", to
distinguish between ports having the same index but belonging to
different switches. This has a slight chance of causing regressions to
existing tooling:
- grepping for "p04_counter_name" still works, but might return more
than one string now
- grepping for " p04_counter_name" no longer works
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20251122112311.138784-4-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Suppress some checkpatch 'CHECK' messages about u8 being preferable over
uint8_t, etc. No functional change.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20251122112311.138784-3-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In theory this would have been seen by now, but it seems that all
drivers used as DSA conduit interfaces thus far have had ethtool_ops
set, and it's hard to even find modern Ethernet drivers (and not VF
ones) which don't use ethtool.
Here is the unfiltered list of drivers which register any sort of
net_device but don't set its ethtool_ops pointer. I don't think any of
them 'risks' being used as a DSA conduit, maybe except for moxart,
rnpbge and icssm, I'm not sure.
- drivers/net/can/dev/dev.c
- drivers/net/wwan/qcom_bam_dmux.c
- drivers/net/wwan/t7xx/t7xx_netdev.c
- drivers/net/arcnet/arcnet.c
- drivers/net/hamradio/
- drivers/net/slip/slip.c
- drivers/net/ethernet/ezchip/nps_enet.c
- drivers/net/ethernet/moxa/moxart_ether.c
- drivers/net/ethernet/wangxun/txgbevf/txgbevf_main.c
- drivers/net/ethernet/wangxun/ngbevf/ngbevf_main.c
- drivers/net/ethernet/huawei/hinic3/hinic3_main.c
- drivers/net/ethernet/i825xx/
- drivers/net/ethernet/ti/icssm/icssm_prueth.c
- drivers/net/ethernet/seeq/
- drivers/net/ethernet/litex/litex_liteeth.c
- drivers/net/ethernet/sunplus/spl2sw_driver.c
- drivers/net/ethernet/mucse/rnpgbe/rnpgbe_main.c
- drivers/net/ipa/
- drivers/net/wireless/microchip/wilc1000/
- drivers/net/wireless/mediatek/mt76/dma.c
- drivers/net/wireless/ath/ath12k/
- drivers/net/wireless/ath/ath11k/
- drivers/net/wireless/ath/ath6kl/
- drivers/net/wireless/ath/ath10k/
- drivers/net/wireless/intel/iwlwifi/pcie/gen1_2/trans.c
- drivers/net/wireless/virtual/mac80211_hwsim.c
- drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
- drivers/net/wireless/realtek/rtw89/core.c
- drivers/net/wireless/realtek/rtw88/pci.c
- drivers/net/caif/
- drivers/net/plip/
- drivers/net/wan/
- drivers/net/mctp/
- drivers/net/ppp/
- drivers/net/thunderbolt/
Nonetheless, it's good for the framework not to make such assumptions,
and not panic when coming across such kind of host device in the future.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20251122112311.138784-2-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Move the more esoteric helpers for netdev instance lock to
a dedicated header. This avoids growing netdevice.h to infinity
and makes rebuilding the kernel much faster (after touching
the header with the helpers).
The main netdev_lock() / netdev_unlock() functions are used
in static inlines in netdevice.h and will probably be used
most commonly, so keep them in netdevice.h.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250307183006.2312761-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Protect all ethtool callbacks and PHY related state with the netdev
instance lock, for drivers which want / need to have their ops
instance-locked. Basically take the lock everywhere we take rtnl_lock.
It was tempting to take the lock in ethnl_ops_begin(), but turns
out we actually nest those calls (when generating notifications).
Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Cc: Saeed Mahameed <saeed@kernel.org>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250305163732.2766420-11-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use more inclusive terms throughout the DSA subsystem by moving away
from "master" which is replaced by "conduit" and "slave" which is
replaced by "user". No functional changes.
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20231023181729.1191071-2-florian.fainelli@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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