kernel/linux.git/drivers/net/ipa/ipa_resource.c, branch v6.1.168

net: ipa: update copyrights

2022-10-03T23:49:20+00:00

Some source files state copyright dates that are earlier than the last modification of the file. Change the copyright year to 2022 in all such cases. Signed-off-by: Alex Elder Link: https://lore.kernel.org/r/20220930224549.3503434-1-elder@linaro.org Signed-off-by: Jakub Kicinski

net: ipa: define resource group/type IPA register fields

2022-09-28T01:42:51+00:00

Define the fields for the {SRC,DST}_RSRC_GRP_{01,23,45,67}_RSRC_TYPE IPA registers for all supported IPA versions. Create enumerated types to identify fields for these IPA registers. Use IPA_REG_STRIDE_FIELDS() to specify the field mask values defined for these registers, for each supported version of IPA. Use ipa_reg_encode() to build up the values to be written to these registers. Remove the definition of the no-longer-used *_FMASK symbols. Signed-off-by: Alex Elder Signed-off-by: Jakub Kicinski

net: ipa: introduce ipa_reg()

2022-09-28T01:42:50+00:00

Create a new function that returns a register descriptor given its ID. Change ipa_reg_offset() and ipa_reg_n_offset() so they take a register descriptor argument rather than an IPA pointer and register ID. Have them accept null pointers (and return an invalid 0 offset), to avoid the need for excessive error checking. (A warning is issued whenever ipa_reg() returns 0). Call ipa_reg() or ipa_reg_n() to look up information about the register before calls to ipa_reg_offset() and ipa_reg_n_offset(). Delay looking up offsets until they're needed to read or write registers. Signed-off-by: Alex Elder Signed-off-by: Jakub Kicinski

net: ipa: use IPA register IDs to determine offsets

2022-09-28T01:42:49+00:00

Expose two inline functions that return the offset for a register whose ID is provided; one of them takes an additional argument that's used for registers that are parameterized. These both use a common helper function __ipa_reg_offset(), which just uses the offset symbols already defined. Replace all references to the offset macros defined for IPA registers with calls to ipa_reg_offset() or ipa_reg_n_offset(). Signed-off-by: Alex Elder Signed-off-by: Jakub Kicinski

net/ipa: ipa_resource: Fix wrong for loop range

2021-11-13T03:59:45+00:00

The source group count was mistakenly assigned to both dst and src loops. Fix it to make IPA probe and work again. Fixes: 4fd704b3608a ("net: ipa: record number of groups in data") Acked-by: AngeloGioacchino Del Regno Reviewed-by: Marijn Suijten Signed-off-by: Konrad Dybcio Reviewed-by: Alex Elder Link: https://lore.kernel.org/r/20211111183724.593478-1-konrad.dybcio@somainline.org Signed-off-by: Jakub Kicinski

net: ipa: kill the remaining conditional validation code

2021-07-26T21:38:11+00:00

There are only a few remaining spots that validate IPA code conditional on whether a symbol is defined at compile time. The checks are not expensive, so just build them always. This completes the removal of all CONFIG_VALIDATE/CONFIG_VALIDATION IPA code. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: get rid of empty IPA functions

2021-04-10T03:57:25+00:00

There are place holder functions in the IPA code that do nothing. For the most part these are inverse functions, for example, once the routing or filter tables are set up there is no need to perform any matching teardown activity at shutdown, or in the case of an error. These can be safely removed, resulting in some code simplification. Add comments in these spots making it explicit that there is no inverse. Signed-off-by: Alex Elder Signed-off-by: Jakub Kicinski

net: ipa: support more than 6 resource groups

2021-03-26T22:02:39+00:00

IPA versions 3.0 and 3.1 support up to 8 resource groups. There is some interest in supporting these older versions of the hardware, so update the resource configuration code to program resource limits for these groups if specified. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: record number of groups in data

2021-03-26T22:02:39+00:00

The arrays of source and destination resource limits defined in configuration data are of a fixed size--which is the maximum number of resource groups supported for any platform. Most platforms will use fewer than that many groups. Add new members to the ipa_rsrc_group_id enumerated type to define the number of source and destination resource groups are defined for the platform. (This type is defined for each platform in its data file.) Add a new field to the resource configuration data that indicates how many of the source and destination resource groups are actually used for the platform, and initialize it with the count value. This allows us to determine the number of groups defined for the platform without exposing the ipa_rsrc_group_id enumerated type. As a result, we no longer need ipa_resource_group_src_count() and ipa_resource_group_dst_count(), because each platform now defines its supported number of resource groups. So get rid of those two functions. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: pass data for source and dest resource config

2021-03-26T22:02:38+00:00

Pass the resource data pointer to ipa_resource_config_src() and ipa_resource_config_dst() to be used for configuring resource limits. Signed-off-by: Alex Elder Signed-off-by: David S. Miller