Commit Graph

11 Commits

Author SHA1 Message Date
Konrad Dybcio 27df68d579 net/ipa: ipa_resource: Fix wrong for loop range
The source group count was mistakenly assigned to both dst and src loops.
Fix it to make IPA probe and work again.

Fixes: 4fd704b360 ("net: ipa: record number of groups in data")
Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20211111183724.593478-1-konrad.dybcio@somainline.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-12 19:59:45 -08:00
Alex Elder 442d68ebf0 net: ipa: kill the remaining conditional validation code
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 <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-26 22:38:11 +01:00
Alex Elder 74858b63c4 net: ipa: get rid of empty IPA functions
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 <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-09 20:57:25 -07:00
Alex Elder 3219953bed net: ipa: support more than 6 resource groups
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 <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-26 15:02:39 -07:00
Alex Elder 4fd704b360 net: ipa: record number of groups in data
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 <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-26 15:02:39 -07:00
Alex Elder 93c03729c5 net: ipa: pass data for source and dest resource config
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 <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-26 15:02:38 -07:00
Alex Elder 7336ce1a7a net: ipa: combine source and destation resource types
The ipa_resource_src and ipa_resource_dst structures are identical
in form, so just replace them with a single structure.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-26 15:02:38 -07:00
Alex Elder d9d1cddf8b net: ipa: combine source and destination group limits
Replace IPA_RESOURCE_GROUP_SRC_MAX and IPA_RESOURCE_GROUP_DST_MAX
with a single symbol, IPA_RESOURCE_GROUP_MAX.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-26 15:02:38 -07:00
Alex Elder 4bcfb35e7a net: ipa: index resource limits with type
Remove the type field from the ipa_resource_src and ipa_resource_dst
structures, and instead use that value as the index into the arrays
of source and destination resources.

Change ipa_resource_config_src() and ipa_resource_config_dst() so
the resource type is passed in as an argument.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-26 15:02:38 -07:00
Alex Elder a749c6c037 net: ipa: fix bug in resource group limit programming
If the number of resource groups supported by the hardware is less
than a certain number, we return early in ipa_resource_config_src()
and ipa_resource_config_dst() (to avoid programming resource limits
for non-existent groups).

Unfortunately, these checks are off by one.  Fix this problem in the
four places it occurs.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-26 15:02:38 -07:00
Alex Elder ee3e6beaa0 net: ipa: introduce ipa_resource.c
Separate the IPA resource-related code into a new source file,
"ipa_resource.c", and matching header file "ipa_resource.h".

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-26 15:02:38 -07:00