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net: dsa: sja1105: fix static FDB writes for SJA1110

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The blamed commit made FDB access on SJA1110 functional only as far as
dumping the existing entries goes, but anything having to do with an
entry's index (adding, deleting) is still broken.

There are in fact 2 problems, all caused by improperly inheriting the
code from SJA1105P/Q/R/S:
- An entry size is SJA1110_SIZE_L2_LOOKUP_ENTRY (24) bytes and not
  SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY (20) bytes
- The "index" field within an FDB entry is at bits 10:1 for SJA1110 and
  not 15:6 as in SJA1105P/Q/R/S

This patch moves the packing function for the cmd->index outside of
sja1105pqrs_common_l2_lookup_cmd_packing() and into the device specific
functions sja1105pqrs_l2_lookup_cmd_packing and
sja1110_l2_lookup_cmd_packing.

Fixes: 74e7feff0e ("net: dsa: sja1105: fix dynamic access to L2 Address Lookup table for SJA1110")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2021-07-30 20:18:10 +03:00 committed by David S. Miller
parent 40e1594038
commit cb81698fdd
1 changed files with 14 additions and 13 deletions
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27
drivers/net/dsa/sja1105/sja1105_dynamic_config.c
View file

@ -304,6 +304,15 @@ sja1105pqrs_common_l2_lookup_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
hostcmd = SJA1105_HOSTCMD_INVALIDATE;
}
sja1105_packing(p, &hostcmd, 25, 23, size, op);
}
static void
sja1105pqrs_l2_lookup_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
enum packing_op op)
{
int entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY;
sja1105pqrs_common_l2_lookup_cmd_packing(buf, cmd, op, entry_size);
/* Hack - The hardware takes the 'index' field within
* struct sja1105_l2_lookup_entry as the index on which this command
@ -313,26 +322,18 @@ sja1105pqrs_common_l2_lookup_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
* such that our API doesn't need to ask for a full-blown entry
* structure when e.g. a delete is requested.
*/
sja1105_packing(buf, &cmd->index, 15, 6,
SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY, op);
}
static void
sja1105pqrs_l2_lookup_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
enum packing_op op)
{
int size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY;
return sja1105pqrs_common_l2_lookup_cmd_packing(buf, cmd, op, size);
sja1105_packing(buf, &cmd->index, 15, 6, entry_size, op);
}
static void
sja1110_l2_lookup_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
enum packing_op op)
{
int size = SJA1110_SIZE_L2_LOOKUP_ENTRY;
int entry_size = SJA1110_SIZE_L2_LOOKUP_ENTRY;
return sja1105pqrs_common_l2_lookup_cmd_packing(buf, cmd, op, size);
sja1105pqrs_common_l2_lookup_cmd_packing(buf, cmd, op, entry_size);
sja1105_packing(buf, &cmd->index, 10, 1, entry_size, op);
}
/* The switch is so retarded that it makes our command/entry abstraction