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Fix the following smatch warning:
smatch warnings:
drivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:103 vcap_debugfs_show_rule_keyfield() error: uninitialized symbol 'value'.
drivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:106 vcap_debugfs_show_rule_keyfield() error: uninitialized symbol 'mask'.
In case the vcap field was VCAP_FIELD_U128 and the key was different
than IP6_S/DIP then the value and mask were not initialized, therefore
initialize them.
Fixes: 610c32b2ce66 ("net: microchip: vcap: Add vcap_get_rule")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Saeed Mahameed <saeed@kernel.org>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add function vcap_get_rule which returns a rule based on the internal
rule id.
The entire functionality of reading and decoding the rule from the VCAP
was inside vcap_api_debugfs file. So move the entire implementation in
vcap_api as this is used also by vcap_get_rule.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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If vcap_dup_rule() fails that leads to an error pointer dereference
side the call to vcap_free_rule(). Also it only returns an error if the
very last call to vcap_read_rule() fails and it returns success for
other errors.
I've changed it to just stop printing after the first error and return
an error code.
Fixes: 3a7921560d2f ("net: microchip: sparx5: Add VCAP rule debugFS support for the VCAP API")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Link: https://lore.kernel.org/r/Y4XUUx9kzurBN+BV@kili
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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This will display a list of keyset in case the type_id field in the VCAP
rule has been wildcarded.
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This tests the functionality of the debugFS support:
- finding valid keyset on an address
- raw VCAP output
- full rule VCAP output
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This ensures that the VCAP cache and the lists maintained in the VCAP
instance is protected when accessed by different clients.
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This add support for displaying the keys and actions in a rule.
The keys and action display format will be determined by the size and the
type of the key or action. The longer keys will typically be displayed as a
hexadecimal byte array.
The actionset is not decoded in full as the Sparx5 IS2 only has one
supported action, so this will be added later with other VCAP types.
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This add support to show all rules in a VCAP instance. The information
shown is:
- rule id
- address range
- size
- chain id
- keyset name, subword size, register span
- actionset name, subword size, register span
- counter value
- sticky bit (one bit width counter)
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds support for decoding VCAP rules with a minimum number of
attributes: address, rule size and keyset.
This allows for a quick inspection of a VCAP instance to determine if the
rule are present and in the correct order.
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a debugFS root folder for Sparx5 and add a vcap folder underneath with
the VCAP instances and the ports
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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