linux.git/drivers/net/ipa, branch v6.18.21

ipa: fix compile-testing with qcom-mdt=m

2025-08-05T00:15:15+00:00

There are multiple drivers that use the qualcomm mdt loader, but they
have conflicting ideas of how to deal with that dependency when compile-testing
for non-qualcomm targets:

IPA only enables the MDT loader when the kernel config includes ARCH_QCOM,
but the newly added ath12k support always enables it, which leads to a
link failure with the combination of IPA=y and ATH12K=m:

    aarch64-linux-ld: drivers/net/ipa/ipa_main.o: in function `ipa_firmware_load':
    ipa_main.c:(.text.unlikely+0x134): undefined reference to `qcom_mdt_load

The ATH12K method seems more reliable here, so change IPA over to do the same
thing.

Fixes: 38a4066f593c ("net: ipa: support COMPILE_TEST")
Fixes: c0dd3f4f7091 ("wifi: ath12k: enable ath12k AHB support")
Signed-off-by: Arnd Bergmann 
Link: https://patch.msgid.link/20250731080024.2054904-1-arnd@kernel.org
Signed-off-by: Jakub Kicinski

net: ipa: add IPA v5.1 and v5.5 to ipa_version_string()

2025-07-31T01:08:10+00:00

Handle the case for v5.1 and v5.5 instead of returning "0.0".

Also reword the comment below since I don't see any evidence of such a
check happening, and - since 5.5 has been missing - can happen.

Fixes: 3aac8ec1c028 ("net: ipa: add some new IPA versions")
Signed-off-by: Luca Weiss 
Reviewed-by: Dawid Osuchowski 
Reviewed-by: Alex Elder 
Link: https://patch.msgid.link/20250728-ipa-5-1-5-5-version_string-v1-1-d7a5623d7ece@fairphone.com
Signed-off-by: Jakub Kicinski

net: Use of_reserved_mem_region_to_resource{_byname}() for "memory-region"

2025-07-08T15:29:46+00:00

Use the newly added of_reserved_mem_region_to_resource{_byname}()
functions to handle "memory-region" properties.

The error handling is a bit different for mtk_wed_mcu_load_firmware().
A failed match of the "memory-region-names" would skip the entry, but
then other errors in the lookup and retrieval of the address would not
skip the entry. However, that distinction is not really important.
Either the region is available and usable or it is not. So now, errors
from of_reserved_mem_region_to_resource() are ignored so the region is
simply skipped.

Signed-off-by: Rob Herring (Arm) 
Link: https://patch.msgid.link/20250703183459.2074381-1-robh@kernel.org
Signed-off-by: Jakub Kicinski

net: ipa: Make the SMEM item ID constant

2025-05-13T22:42:50+00:00

It can't vary, stop storing the same magic number everywhere.

Signed-off-by: Konrad Dybcio 
Reviewed-by: Alex Elder 
Link: https://patch.msgid.link/20250512-topic-ipa_smem-v1-1-302679514a0d@oss.qualcomm.com
Signed-off-by: Jakub Kicinski

net: ipa: Enable checksum for IPA_ENDPOINT_AP_MODEM_{RX,TX} for v4.7

2025-03-05T00:19:21+00:00

Enable the checksum option for these two endpoints in order to allow
mobile data to actually work. Without this, no packets seem to make it
through the IPA.

Fixes: b310de784bac ("net: ipa: add IPA v4.7 support")
Signed-off-by: Luca Weiss 
Reviewed-by: Alex Elder 
Link: https://patch.msgid.link/20250227-ipa-v4-7-fixes-v1-3-a88dd8249d8a@fairphone.com
Signed-off-by: Jakub Kicinski

net: ipa: Fix QSB data for v4.7

2025-03-05T00:19:20+00:00

As per downstream reference, max_writes should be 12 and max_reads
should be 13.

Fixes: b310de784bac ("net: ipa: add IPA v4.7 support")
Signed-off-by: Luca Weiss 
Reviewed-by: Alex Elder 
Link: https://patch.msgid.link/20250227-ipa-v4-7-fixes-v1-2-a88dd8249d8a@fairphone.com
Signed-off-by: Jakub Kicinski

net: ipa: Fix v4.7 resource group names

2025-03-05T00:19:20+00:00

In the downstream IPA driver there's only one group defined for source
and destination, and the destination group doesn't have a _DPL suffix.

Fixes: b310de784bac ("net: ipa: add IPA v4.7 support")
Signed-off-by: Luca Weiss 
Reviewed-by: Alex Elder 
Link: https://patch.msgid.link/20250227-ipa-v4-7-fixes-v1-1-a88dd8249d8a@fairphone.com
Signed-off-by: Jakub Kicinski

net: Switch back to struct platform_driver::remove()

2024-10-04T23:39:57+00:00

After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.

Convert all platform drivers below drivers/net after the previous
conversion commits apart from the wireless drivers to use .remove(),
with the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.

Signed-off-by: Uwe Kleine-König 
Reviewed-by: Andrew Lunn 
Reviewed-by: Sergey Ryazanov 
Acked-by: Stefan Schmidt 
Signed-off-by: Jakub Kicinski

net: ipa: make use of dev_err_cast_probe()

2024-08-29T18:41:05+00:00

Using dev_err_cast_probe() to simplify the code.

Signed-off-by: Hongbo Li 
Link: https://patch.msgid.link/20240828121551.3696520-1-lihongbo22@huawei.com
Signed-off-by: Jakub Kicinski

net: ipa: allocate dummy net_device dynamically

2024-04-24T11:00:16+00:00

Embedding net_device into structures prohibits the usage of flexible
arrays in the net_device structure. For more details, see the discussion
at [1].

Un-embed the net_device from the private struct by converting it
into a pointer. Then use the leverage the new alloc_netdev_dummy()
helper to allocate and initialize dummy devices.

[1] https://lore.kernel.org/all/20240229225910.79e224cf@kernel.org/

Signed-off-by: Breno Leitao 
Signed-off-by: David S. Miller