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This is a preliminary patch to add mt7986 ethernet support.
Tested-by: Sam Shih <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This is a preliminary patch to add mt7986 ethernet support.
Tested-by: Sam Shih <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This is a preliminary patch to add mt7986 ethernet support.
Tested-by: Sam Shih <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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In order to remove mtk_tx_dma size dependency, introduce txd_size in
mtk_soc_data data structure. Rely on txd_size in mtk_init_fq_dma() and
mtk_dma_free() routines.
This is a preliminary patch to add mt7986 ethernet support.
Tested-by: Sam Shih <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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mtk_tx_set_dma_desc
Move tx dma descriptor configuration in mtk_tx_set_dma_desc routine.
This is a preliminary patch to introduce mt7986 ethernet support since
it relies on a different tx dma descriptor layout.
Tested-by: Sam Shih <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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whenever possible
Rely on GFP_KERNEL for dma descriptors mappings in mtk_tx_alloc(),
mtk_rx_alloc() and mtk_init_fq_dma() since they are run in non-irq
context.
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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GCC 12 currently generates a rather inconsistent warning:
drivers/net/ethernet/broadcom/tg3.c:17795:51: warning: array subscript 5 is above array bounds of ‘struct tg3_napi[5]’ [-Warray-bounds]
17795 | struct tg3_napi *tnapi = &tp->napi[i];
| ~~~~~~~~^~~
i is guaranteed < tp->irq_max which in turn is either 1 or 5.
There are more loops like this one in the driver, but strangely
GCC 12 dislikes only this single one.
Silence this silliness for now.
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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GCC 12 gets upset because driver allocates partial
struct ice_aqc_sw_rules_elem buffers. The writes are
within bounds.
Silence these warnings for now, our build bot runs GCC 12
so we won't allow any new instances.
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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GCC 12 gets upset because in mtk_foe_entry_commit_subflow()
this driver allocates a partial structure. The writes are
within bounds.
Silence these warnings for now, our build bot runs GCC 12
so we won't allow any new instances.
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The "ok" tc action is useful when placed in front of a more generic
filter to exclude some more specific rules from matching it.
The ocelot switches can offload this tc action by creating an empty
action vector (no _ENA fields set to 1). This makes sense for all of
VCAP IS1, IS2 and ES0 (but not for PSFP).
Add support for this action. Note that this makes the
gact_drop_and_ok_test() selftest pass, where "action ok" is used in
front of an "action drop" rule, both offloaded to VCAP IS2.
Signed-off-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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An error code returned by devm_clk_get() might have other meanings than
"This clock doesn't exist". So use devm_clk_get_optional() and handle
all remaining errors as fatal.
Signed-off-by: Uwe Kleine-König <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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RGMII mode can be enable from dp83822 straps, and also writing bit 9
of register 0x17 - RMII and Status Register (RCSR).
When phy_interface_is_rgmii rgmii mode must be enabled, same for
contrary, this prevents malconfigurations of hw straps
References:
- https://www.ti.com/lit/gpn/dp83822i p66
Signed-off-by: Tommaso Merciai <[email protected]>
Co-developed-by: Michael Trimarchi <[email protected]>
Suggested-by: Alberto Bianchi <[email protected]>
Tested-by: Tommaso Merciai <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The 64-bit data field in a transaction is not used for commands.
And the opcode array is *only* used for commands. They're
(currently) the same size; save a little space in the transaction
structure by enclosing the two fields in a union.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The ipa_cmd_info structure now contains only one field, and it's an
enumerated type whose values all fit in 8 bits. Currently we'll
never use more than 8 TREs in a command transaction, and we can
represent that number of command opcodes in the same space as a 64
bit pointer to an ipa_cmd_info structure.
Define IPA_COMMAND_TRANS_TRE_MAX as the maximum number of TREs that
can be in a command transaction. Replace the info pointer in a
transaction with a fixed-size array named cmd_opcode[] of that many
bytes. Store the opcode in this array when adding a command TRE to
a transaction, as was done previously for the info array. This
makes the ipa_cmd_info unused, so get rid of it.
When committing an immediate command transaction, use the channel's
Boolean command flag to determine whether to fill in the opcode,
which will be taken (as before) from the array in the transaction.
This makes the command info pool unnecessary, so get rid of it.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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We no longer use the direction argument for gsi_trans_cmd_add(), so
get rid of it in its definition, and in its seven callers.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The direction field of the ipa_cmd_info structure is set, but never
used. It seems it might have been used for the DMA_SHARED_MEM
immediate command, but the DIRECTION flag is set based on the value
of the passed-in direction flag there.
Anyway, remove this unused field from the ipa_cmd_info structure.
This is done as a separate patch to make it very obvious that it's
not required.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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In ipa_endpoint_modem_exception_reset_all(), a high estimate was
made of the number of endpoints that need their status register
updated. We only used what was needed, so the high estimate didn't
matter much.
However the next few patches are going to limit the number of
commands in a single transaction, and the overestimate would exceed
that. So count the number of modem TX endpoints at initialization
time, and use it in ipa_endpoint_modem_exception_reset_all().
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Since the beginning gsi_trans_commit_wait_timeout() has existed to
provide a way to allow waiting a limited time for a transaction
to complete. But that function has never been used.
In fact, there is no use for this function, because a transaction
committed to hardware should *always* complete. The only reason it
might not complete is if there were a hardware failure, or perhaps a
system configuration error.
Furthermore, if a timeout ever did occur, the IPA hardware would be
in an indeterminate state, from which there is no recovery. It
would require some sort of complete IPA reset, and would require the
participation of the modem, and at this time there is no such
sequence defined.
So get rid of the definition of gsi_trans_commit_wait_timeout(), and
update a few comments accordingly.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Don't assume that a 500 microsecond time limit should be used for
all receive endpoints that support aggregation. Instead, specify
the time limit to use in the configuration data.
Set a 500 microsecond limit for all existing RX endpoints, as before.
Checking for overflow for the time limit field is a bit complicated.
Rather than duplicate a lot of code in ipa_endpoint_data_valid_one(),
call WARN() if any value is found to be too large when encoding it.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add a new flag for AP receive endpoints that indicates whether
a "hard limit" is used as a criterion for closing aggregation.
Add comments explaining the difference between "hard" and "soft"
aggregation limits.
Pass a flag to ipa_aggr_size_kb() so it computes the proper
aggregation size value whether using hard or soft limits. Move
that function earlier in "ipa_endpoint.c" so it can be used
without a forward-reference.
Update ipa_endpoint_data_valid_one() so it validates endpoints whose
data indicate a hard aggregation limit is used, and so it reports
set aggregation flags for endpoints without aggregation enabled.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add a new Boolean flag for RX endpoints defining whether HOLB drop
is initially enabled or disabled for the endpoint. All existing AP
endpoints should have HOLB drop disabled.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Spelling mistakes (triple letters) in comments.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <[email protected]>
Reviewed-by: Niklas Söderlund <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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GCC array-bounds warns that ipc_coredump_get_list() under-allocates
the size of struct iosm_cd_table *cd_table.
This is avoidable - we just need a flexible array. Nothing calls
sizeof() on struct iosm_cd_list or anything that contains it.
Reviewed-by: M Chetan Kumar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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align the extack argument of the ocelot_port_fdb_del()
function.
Signed-off-by: Alaa Mohamed <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The continuation line does not align with the opening bracket
and this patch fix it.
Signed-off-by: Alaa Mohamed <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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GCC array bounds checking complains that ulp_id is validated
only against upper bound. Make it unsigned.
Reviewed-by: Michael Chan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Sometimes t7xx_cldma_gpd_set_next_ptr() is called under spin lock,
so add 'gfp_mask' parameter in t7xx_cldma_gpd_set_next_ptr() to pass
the flag.
Fixes: 39d439047f1d ("net: wwan: t7xx: Add control DMA interface")
Reported-by: Hulk Robot <[email protected]>
Signed-off-by: Yang Yingliang <[email protected]>
Reviewed-by: Loic Poulain <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Fix typo which breaks build for parisc.
Fixes: 3daebfbeb455 ("net: tulip: convert to devres")
Reported-by: Linux Kernel Functional Testing <[email protected]>
Link: https://lore.kernel.org/all/CA+G9fYuCzU5VZ_nc+6NEdBXJdVCH=J2SB1Na1G_NS_0BNdGYtg@mail.gmail.com/
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Rolf Eike Beer <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Siena only supports software TSO. This means more code can be deleted,
as pointed out by the Smatch static checker warning:
drivers/net/ethernet/sfc/siena/tx.c:184 __efx_siena_enqueue_skb()
warn: duplicate check 'segments' (previous on line 158)
Fixes: 956f2d86cb37 ("sfc/siena: Remove build references to missing functionality")
Reported-by: Dan Carpenter <[email protected]>
Link: https://lore.kernel.org/kernel-janitors/YoH5tJMnwuGTrn1Z@kili/
Signed-off-by: Martin Habets <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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All elements of the default endpoint configuration are used in the
code when programming an endpoint for use. But none of the other
configuration data is ever needed once things are initialized.
So rather than saving a pointer to *all* of the configuration data,
save a copy of only the endpoint configuration portion.
This will eventually allow endpoint configuration to be modifiable
at runtime. But even before that it means we won't keep a pointer
to configuration data after when no longer needed.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Rename the just-moved data structure types to drop the "_data"
suffix, to make it more obvious they are no longer meant to be used
just as read-only initialization data. Rename the fields and
variables of these types to use "config" instead of "data" in the
name. This is another small step meant to facilitate review.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Move the definitions of the structures defining endpoint-specific
configuration data out of "ipa_data.h" and into "ipa_endpoint.h".
This is a trivial movement of code without any other change, to
prepare for the next few patches.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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About half of the fields set by the call in ipa_modem_netdev_setup()
are overwritten after the call. Instead, just skip the call, and
open-code the (other) assignments it makes to the net_device
structure fields.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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If we program an RX endpoint to have no header (header length is 0),
header-related endpoint configuration values are meaningless and are
ignored.
The only case we support that defines a header is QMAP endpoints.
In ipa_endpoint_init_hdr_ext() we set the endianness mask value
unconditionally, but it should not be done if there is no header
(meaning it is not configured for QMAP).
Set the endianness conditionally, and rearrange the logic in that
function slightly to avoid testing the qmap flag twice.
Delete an incorrect comment in ipa_endpoint_init_aggr().
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The CHANNEL_NOT_RUNNING error condition has been generalized, so
rename it to be INCORRECT_CHANNEL_STATE.
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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In gsi_channel_update(), a reference count is taken on the last
completed transaction "to keep it from completing" before we give
the event back to the hardware. Completion processing for that
transaction (and any other "new" ones) will not occur until after
this function returns, so there's no risk it completing early. So
there's no need to take and drop the additional transaction
reference.
Use local variables in the call to gsi_evt_ring_doorbell().
Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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I missed this in the barrage of GCC 12 warnings. Commit cf2df74e202d
("net: fix dev_fill_forward_path with pppoe + bridge") changed
the pointer into an array.
Fixes: d7e6f5836038 ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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GCC 12 seems upset that we check ipa_irq against array bound
but then proceed, anyway:
drivers/net/ipa/ipa_interrupt.c: In function ‘ipa_interrupt_add’:
drivers/net/ipa/ipa_interrupt.c:196:27: warning: array subscript 30 is above array bounds of ‘void (*[30])(struct ipa *, enum ipa_irq_id)’ [-Warray-bounds]
196 | interrupt->handler[ipa_irq] = handler;
| ~~~~~~~~~~~~~~~~~~^~~~~~~~~
drivers/net/ipa/ipa_interrupt.c:42:27: note: while referencing ‘handler’
42 | ipa_irq_handler_t handler[IPA_IRQ_COUNT];
| ^~~~~~~
Reviewed-by: Alex Elder <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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GCC 12 warns:
drivers/net/wwan/iosm/iosm_ipc_protocol_ops.c: In function ‘ipc_protocol_dl_td_process’:
drivers/net/wwan/iosm/iosm_ipc_protocol_ops.c:406:13: warning: the comparison will always evaluate as ‘true’ for the address of ‘cb’ will never be NULL [-Waddress]
406 | if (!IPC_CB(skb)) {
| ^
Indeed the check seems entirely pointless. Hopefully the other
validation checks will catch if the cb is bad, but it can't be
NULL.
Reviewed-by: M Chetan Kumar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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gswip_port_fdb_dump() reads the MAC bridge entries. The error message
should say "failed to read mac bridge entry". While here, also add the
index to the error print so humans can get to the cause of the problem
easier.
Acked-by: Hauke Mehrtens <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Signed-off-by: Martin Blumenstingl <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
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The first N entries in priv->vlans are reserved for managing ports which
are not part of a bridge. Use priv->hw_info->max_ports to consistently
access per-bridge entries at index 7. Starting at
priv->hw_info->cpu_port (6) is harmless in this case because
priv->vlan[6].bridge is always NULL so the comparison result is always
false (which results in this entry being skipped).
Acked-by: Hauke Mehrtens <[email protected]>
Signed-off-by: Martin Blumenstingl <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
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t7xx_request_irq() error: uninitialized symbol 'ret'.
t7xx_core_hk_handler() error: potentially dereferencing uninitialized 'event'.
If the condition to enter the loop that waits for the handshake event
is false on the first iteration then the uninitialized 'event' will be
dereferenced, fix this by initializing 'event' to NULL.
t7xx_port_proxy_recv_skb() warn: variable dereferenced before check 'skb'.
No need to check skb at t7xx_port_proxy_recv_skb() since we know it
is always called with a valid skb by t7xx_cldma_gpd_rx_from_q().
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Ricardo Martinez <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Partially convert mtk_eth_soc to phylink_pcs, moving the configuration,
link up and AN restart over. However, it seems mac_pcs_get_state()
doesn't actually get the state from the PCS, so we can't convert that
over without a better understanding of the hardware.
Signed-off-by: Russell King (Oracle) <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
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Provide a mtk_pcs structure which encapsulates everything that the PCS
functions need (the regmap and ana_rgc3 offset), and use this in the
PCS functions. Provide shim functions to convert from the existing
"mtk_sgmii_*" interface to the converted PCS functions.
Signed-off-by: Russell King (Oracle) <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
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