diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2020-09-30 01:27:26 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-30 04:26:24 +0300 |
| commit | 2096805497e2bd21df3c26bd48c43ff0ce954316 (patch) | |
| tree | e3e5e653e705ff763c1a8df0dc85f5892f55832b /drivers/net/ethernet/mscc/ocelot_vsc7514.c | |
| parent | e3aea296d86f0f2166f4ddc5e1325217f847e722 (diff) | |
| download | linux-2096805497e2bd21df3c26bd48c43ff0ce954316.tar.xz | |
net: mscc: ocelot: automatically detect VCAP constants
The numbers in struct vcap_props are not intuitive to derive, because
they are not a straightforward copy-and-paste from the reference manual
but instead rely on a fairly detailed level of understanding of the
layout of an entry in the TCAM and in the action RAM. For this reason,
bugs are very easy to introduce here.
Ease the work of hardware porters and read from hardware the constants
that were exported for this particular purpose. Note that this implies
that struct vcap_props can no longer be const.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot_vsc7514.c')
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot_vsc7514.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c index 86f8b77decf5..36332bc9af3b 100644 --- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c +++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c @@ -251,6 +251,17 @@ static const u32 ocelot_vcap_regmap[] = { REG(VCAP_CACHE_ACTION_DAT, 0x000208), REG(VCAP_CACHE_CNT_DAT, 0x000308), REG(VCAP_CACHE_TG_DAT, 0x000388), + /* VCAP_CONST */ + REG(VCAP_CONST_VCAP_VER, 0x000398), + REG(VCAP_CONST_ENTRY_WIDTH, 0x00039c), + REG(VCAP_CONST_ENTRY_CNT, 0x0003a0), + REG(VCAP_CONST_ENTRY_SWCNT, 0x0003a4), + REG(VCAP_CONST_ENTRY_TG_WIDTH, 0x0003a8), + REG(VCAP_CONST_ACTION_DEF_CNT, 0x0003ac), + REG(VCAP_CONST_ACTION_WIDTH, 0x0003b0), + REG(VCAP_CONST_CNT_WIDTH, 0x0003b4), + REG(VCAP_CONST_CORE_CNT, 0x0003b8), + REG(VCAP_CONST_IF_CNT, 0x0003bc), }; static const u32 ocelot_ptp_regmap[] = { @@ -963,7 +974,7 @@ static const struct vcap_field vsc7514_vcap_is2_actions[] = { [VCAP_IS2_ACT_HIT_CNT] = { 49, 32}, }; -static const struct vcap_props vsc7514_vcap_props[] = { +static struct vcap_props vsc7514_vcap_props[] = { [VCAP_ES0] = { .action_type_width = 0, .action_table = { |