diff options
| author | Xiaoliang Yang <xiaoliang.yang_1@nxp.com> | 2020-09-30 01:27:29 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-29 18:26:24 -0700 |
| commit | e6ae7c506f801100ba7a1f9f6f0cfc2197bf1989 (patch) | |
| tree | 250a927cac4e37c6aa7a3b00beb1a569586dfd74 /drivers/net | |
| parent | 7a155fa3d84ef1418ded16ba477b20b2a4c0f528 (diff) | |
| download | linux-e6ae7c506f801100ba7a1f9f6f0cfc2197bf1989.tar.bz2 | |
net: mscc: ocelot: calculate vcap offsets correctly for full and quarter entries
When calculating the offsets for the current entry within the row and
placing them inside struct vcap_data, the function assumes half key
entry (2 keys per row).
This patch modifies the vcap_data_offset_get() function to calculate a
correct data offset when the setting VCAP Type-Group of a key to
VCAP_TG_FULL or VCAP_TG_QUARTER.
This is needed because, for example, VCAP ES0 only supports full keys.
Also rename the 'count' variable to 'num_entries_per_row' to make the
function just one tiny bit easier to follow.
Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot_vcap.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_vcap.c b/drivers/net/ethernet/mscc/ocelot_vcap.c index b736c3d3df2f..3f7d3fbaa1fc 100644 --- a/drivers/net/ethernet/mscc/ocelot_vcap.c +++ b/drivers/net/ethernet/mscc/ocelot_vcap.c @@ -177,8 +177,21 @@ static void vcap_data_offset_get(const struct vcap_props *vcap, int i, col, offset, count, cnt, base; u32 width = vcap->tg_width; - count = (data->tg_sw == VCAP_TG_HALF ? 2 : 4); - col = (ix % 2); + switch (data->tg_sw) { + case VCAP_TG_FULL: + count = 1; + break; + case VCAP_TG_HALF: + count = 2; + break; + case VCAP_TG_QUARTER: + count = 4; + break; + default: + return; + } + + col = (ix % count); cnt = (vcap->sw_count / count); base = (vcap->sw_count - col * cnt - cnt); data->tg_value = 0; |