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Use min() instead of min_t() to avoid the possibility of casting to the
wrong type.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250520042031.9297-1-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cross-merge networking fixes after downstream PR (net-6.15-rc5).
No conflicts or adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Modify the format specifier in snprintf to %u.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Link: https://patch.msgid.link/20250425064057.30035-1-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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rtase_calc_time_mitigation
Fix the following compile error reported by the kernel test
robot by modifying the condition used to detect overflow in
rtase_calc_time_mitigation.
In file included from include/linux/mdio.h:10:0,
from drivers/net/ethernet/realtek/rtase/rtase_main.c:58:
In function 'u16_encode_bits',
inlined from 'rtase_calc_time_mitigation.constprop' at drivers/net/
ethernet/realtek/rtase/rtase_main.c:1915:13,
inlined from 'rtase_init_software_variable.isra.41' at drivers/net/
ethernet/realtek/rtase/rtase_main.c:1961:13,
inlined from 'rtase_init_one' at drivers/net/ethernet/realtek/
rtase/rtase_main.c:2111:2:
>> include/linux/bitfield.h:178:3: error: call to '__field_overflow'
declared with attribute error: value doesn't fit into mask
__field_overflow(); \
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:198:2: note: in expansion of macro
'____MAKE_OP'
____MAKE_OP(u##size,u##size,,)
^~~~~~~~~~~
include/linux/bitfield.h:200:1: note: in expansion of macro
'__MAKE_OP'
__MAKE_OP(16)
^~~~~~~~~
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503182158.nkAlbJWX-lkp@intel.com/
Fixes: a36e9f5cfe9e ("rtase: Add support for a pci table in this module")
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250424040444.5530-1-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add support for ndo_setup_tc to enable CBS offload functionality as
part of traffic control configuration for network devices, where CBS
is applied from the CPU to the switch. More specifically, CBS is
applied at the GMAC in the topmost architecture diagram.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250416115757.28156-1-justinlai0215@realtek.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Since rtase_init_ring, which is called within rtase_sw_reset, adds ring
entries already present in the ring list back into the list, it causes
the ring list to form a cycle. This results in list_for_each_entry_safe
failing to find an endpoint during traversal, leading to an error.
Therefore, it is necessary to remove the previously added ring_list nodes
before calling rtase_init_ring.
Fixes: 079600489960 ("rtase: Implement net_device_ops")
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250306070510.18129-1-justinlai0215@realtek.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Cross-merge networking fixes after downstream PR (net-6.13-rc7).
Conflicts:
a42d71e322a8 ("net_sched: sch_cake: Add drop reasons")
737d4d91d35b ("sched: sch_cake: add bounds checks to host bulk flow fairness counts")
Adjacent changes:
drivers/net/ethernet/meta/fbnic/fbnic.h
3a856ab34726 ("eth: fbnic: add IRQ reuse support")
95978931d55f ("eth: fbnic: Revert "eth: fbnic: Add hardware monitoring support via HWMON interface"")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The pci_irq_vector() function never returns zero. It returns negative
error codes or a positive non-zero IRQ number. Fix the error checking to
test for negatives.
Fixes: a36e9f5cfe9e ("rtase: Add support for a pci table in this module")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/f2ecc88d-af13-4651-9820-7cc665230019@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Refine the if statement to improve readability.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://patch.msgid.link/20241206084851.760475-1-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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1. Add RTL907XD-VA hardware version id.
2. Add the reported speed for RTL907XD-VA.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20241203103146.734516-1-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Previously, when the hardware version ID was determined to be invalid,
only an error message was printed without any further handling. Therefore,
this patch makes the necessary corrections to address this.
Fixes: a36e9f5cfe9e ("rtase: Add support for a pci table in this module")
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Previously, the reported speed was uniformly set to SPEED_5000, but the
RTL907XD-V1 actually operates at a speed of SPEED_10000. Therefore, this
patch makes the necessary correction.
Fixes: dd7f17c40fd1 ("rtase: Implement ethtool function")
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Different hardware requires different configurations, but this distinction
was not made previously. Additionally, the error message was not clear
enough. Therefore, this patch will address the issues mentioned above.
Fixes: a36e9f5cfe9e ("rtase: Add support for a pci table in this module")
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Remove unnecessary spaces.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20241114112549.376101-3-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Modify the name of the goto label in rtase_init_one().
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20241114112549.376101-2-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Return an error if dma_set_mask_and_coherent() fails. Don't return
success.
Fixes: a36e9f5cfe9e ("rtase: Add support for a pci table in this module")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/f53ed942-5ac2-424b-a1ed-9473c599905e@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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There is a spelling mistake in the struct field tx_underun, rename
it to tx_underrun.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240909134612.63912-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a Makefile in the rtase folder to build rtase driver.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-12-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Implement the ethtool function to support users to obtain network card
information, including obtaining various device settings, Report whether
physical link is up, Report pause parameters, Set pause parameters,
Return extended statistics about the device.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-11-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Implement the pci_driver suspend function to enable the device
to sleep, and implement the resume function to enable the device
to resume operation.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-10-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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1. Implement .ndo_set_rx_mode so that the device can change address
list filtering.
2. Implement .ndo_set_mac_address so that mac address can be changed.
3. Implement .ndo_change_mtu so that mtu can be changed.
4. Implement .ndo_tx_timeout to perform related processing when the
transmitter does not make any progress.
5. Implement .ndo_get_stats64 to provide statistics that are called
when the user wants to get network device usage.
6. Implement .ndo_vlan_rx_add_vid to register VLAN ID when the device
supports VLAN filtering.
7. Implement .ndo_vlan_rx_kill_vid to unregister VLAN ID when the device
supports VLAN filtering.
8. Implement the .ndo_setup_tc to enable setting any "tc" scheduler,
classifier or action on dev.
9. Implement .ndo_fix_features enables adjusting requested feature flags
based on device-specific constraints.
10. Implement .ndo_set_features enables updating device configuration to
new features.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-9-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Implement rx_handler to read the information of the rx descriptor,
thereby checking the packet accordingly and storing the packet
in the socket buffer to complete the reception of the packet.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-8-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Implement .ndo_start_xmit function to fill the information of the packet
to be transmitted into the tx descriptor, and then the hardware will
transmit the packet using the information in the tx descriptor.
In addition, we also implemented the tx_handler function to enable the
tx descriptor to be reused.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-7-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Implement rtase_hw_config to set default hardware settings, including
setting interrupt mitigation, tx/rx DMA burst, interframe gap time,
rx packet filter, near fifo threshold and fill descriptor ring and
tally counter address, and enable flow control. When filling the
rx descriptor ring, the first group of queues needs to be processed
separately because the positions of the first group of queues are not
regular with other subsequent groups. The other queues are all newly
added features, but we want to retain the original design. So they were
not put together.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-6-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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1. Implement rtase_interrupt to handle txQ0/rxQ0, txQ4~txQ7 interrupts,
and implement rtase_q_interrupt to handle txQ1/rxQ1, txQ2/rxQ2 and
txQ3/rxQ3 interrupts.
2. Implement rtase_poll to call ring_handler to process the tx or
rx packet of each ring. If the returned value is budget,it means that
there is still work of a certain ring that has not yet been completed.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-5-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Implement the rtase_down function to disable hardware setting
and interrupt and clear descriptor ring.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-4-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Implement the .ndo_open function to set default hardware settings
and initialize the descriptor ring and interrupts. Among them,
when requesting interrupt, because the first group of interrupts
needs to process more events, the overall structure and interrupt
handler will be different from other groups of interrupts, so it
needs to be handled separately. The first set of interrupt handlers
need to handle the interrupt status of RXQ0 and TXQ0, TXQ4~7,
while other groups of interrupt handlers will handle the interrupt
status of RXQ1&TXQ1 or RXQ2&TXQ2 or RXQ3&TXQ3 according to the
interrupt vector.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-3-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add support for a pci table in this module, and implement pci_driver
function to initialize this driver, remove this driver, or shutdown
this driver.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-2-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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