kernel/linux.git/drivers/net/ipa/ipa.h, branch v6.19.11

net: ipa: sort all includes

2024-04-18T11:01:05+00:00

Establish the rule that header files are always included in sorted (POSIX local) order. Standard and private headers are separated by a blank line. Similarly, sort all forward-declarations for structures. Signed-off-by: Alex Elder Signed-off-by: Paolo Abeni

net: ipa: eliminate unneeded struct declarations

2024-04-18T11:01:05+00:00

As definitions in headers have been moved around, some of the struct and enum declarations found in header files have become no longer necessary and can be removed. Remove these unneeded declarations. Signed-off-by: Alex Elder Signed-off-by: Paolo Abeni

net: ipa: include "ipa_interrupt.h" where needed

2024-04-18T11:01:05+00:00

The IPA structure contains an ipa_interrupt structure pointer, and that structure is declared in "ipa.h". There is no need to include "ipa_interrupt.h" in that header file. Instead, include "ipa_interrupt.h" in the three source files (in addition to "ipa_main.c") that actually use the functions that are declared there. Similarly, three files use symbols defined in "ipa_reg.h" but do not include that file; include it. Signed-off-by: Alex Elder Signed-off-by: Paolo Abeni

net: ipa: remove unneeded standard includes

2024-04-18T11:01:05+00:00

Some IPA header files include one or more other standard header files despite not directly needing anything defined in the included files. Remove these unnecessary includes. Signed-off-by: Alex Elder Signed-off-by: Paolo Abeni

net: ipa: don't save the platform device

2024-03-04T11:44:41+00:00

The IPA platform device is now only used as the structure containing the IPA device structure. Replace the platform device pointer with a pointer to the device structure. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: start generalizing "ipa_reg"

2023-02-10T08:06:32+00:00

IPA register definitions have evolved with each new version. The changes required to support more than 32 endpoints in IPA v5.0 made it best to define a unified mechanism for defining registers and their fields. GSI register definitions, meanwhile, have remained fairly stable. And even as the total number of IPA endpoints goes beyond 32, the number of GSI channels on a given EE that underly endpoints still remains 32 or less. Despite that, GSI v3.0 (which is used with IPA v5.0) extends the number of channels (and events) it supports to be about 256, and as a result, many GSI register definitions must change significantly. To address this, we'll use the same "ipa_reg" mechanism to define the GSI registers. As a first step in generalizing the "ipa_reg" to also support GSI registers, isolate the definitions of the "ipa_reg" and "ipa_regs" structure types (and some supporting macros) into a new header file, and remove the "ipa_" and "IPA_" from symbol names. Separate the IPA register ID validity checking from the generic check that a register ID is in range. Aside from that, this is intended to have no functional effect on the code. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: get rid of ipa->reg_addr

2023-02-10T08:06:31+00:00

The reg_addr field in the IPA structure is set but never used. Get rid of it. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: use a bitmap for enabled endpoints

2022-11-04T10:16:53+00:00

Replace the 32-bit unsigned used to track enabled endpoints with a Linux bitmap, to allow an arbitrary number of endpoints to be represented. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: use a bitmap for set-up endpoints

2022-11-04T10:16:53+00:00

Replace the 32-bit unsigned used to track endpoints that have completed setup with a Linux bitmap, to allow an arbitrary number of endpoints to be represented. Rework the error handling in ipa_endpoint_init() so the defined endpoint bitmap is freed if an error occurs early. Once endpoints have been initialized, ipa_endpoint_exit() is used to recover if the set of filtered endpoints is invalid. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: support more filtering endpoints

2022-11-04T10:16:53+00:00

Prior to IPA v5.0, there could be no more than 32 endpoints. A filter table begins with a bitmap indicating which endpoints have a filter defined. That bitmap is currently assumed to fit in a 32-bit value. Starting with IPA v5.0, more than 32 endpoints are supported, so it's conceivable that a TX endpoint has an ID that exceeds 32. Increase the size of the field representing endpoints that support filtering to 64 bits. Rename the bitmap field "filtered". Unlike other similar fields, we do not use an (arbitrarily long) Linux bitmap for this purpose. The reason is that if a filter table ever *did* need to support more than 64 TX endpoints, its format would change in ways we can't anticipate. Have ipa_endpoint_init() return a negative errno rather than a mask that indicates which endpoints support filtering, and have that function assign the "filtered" field directly. Signed-off-by: Alex Elder Signed-off-by: David S. Miller