@@ -126,6 +126,8 @@
#define MVPP22_CLS_C2_TCAM_DATA4 0x1b20
#define MVPP22_CLS_C2_LU_TYPE(lu) ((lu) & 0x3f)
#define MVPP22_CLS_C2_PORT_ID(port) ((port) << 8)
+#define MVPP22_CLS_C2_TCAM_INV 0x1b24
+#define MVPP22_CLS_C2_TCAM_INV_BIT BIT(31)
#define MVPP22_CLS_C2_HIT_CTR 0x1b50
#define MVPP22_CLS_C2_ACT 0x1b60
#define MVPP22_CLS_C2_ACT_RSS_EN(act) (((act) & 0x3) << 19)
@@ -489,8 +489,16 @@ static void mvpp2_cls_flow_lkp_init(struct mvpp2 *priv,
static void mvpp2_cls_c2_write(struct mvpp2 *priv,
struct mvpp2_cls_c2_entry *c2)
{
+ u32 val;
mvpp2_write(priv, MVPP22_CLS_C2_TCAM_IDX, c2->index);
+ val = mvpp2_read(priv, MVPP22_CLS_C2_TCAM_INV);
+ if (c2->valid)
+ val &= ~MVPP22_CLS_C2_TCAM_INV_BIT;
+ else
+ val |= MVPP22_CLS_C2_TCAM_INV_BIT;
+ mvpp2_write(priv, MVPP22_CLS_C2_TCAM_INV, val);
+
mvpp2_write(priv, MVPP22_CLS_C2_ACT, c2->act);
mvpp2_write(priv, MVPP22_CLS_C2_ATTR0, c2->attr[0]);
@@ -509,6 +517,7 @@ static void mvpp2_cls_c2_write(struct mvpp2 *priv,
void mvpp2_cls_c2_read(struct mvpp2 *priv, int index,
struct mvpp2_cls_c2_entry *c2)
{
+ u32 val;
mvpp2_write(priv, MVPP22_CLS_C2_TCAM_IDX, index);
c2->index = index;
@@ -525,6 +534,9 @@ void mvpp2_cls_c2_read(struct mvpp2 *priv, int index,
c2->attr[1] = mvpp2_read(priv, MVPP22_CLS_C2_ATTR1);
c2->attr[2] = mvpp2_read(priv, MVPP22_CLS_C2_ATTR2);
c2->attr[3] = mvpp2_read(priv, MVPP22_CLS_C2_ATTR3);
+
+ val = mvpp2_read(priv, MVPP22_CLS_C2_TCAM_INV);
+ c2->valid = !(val & MVPP22_CLS_C2_TCAM_INV_BIT);
}
/* Initialize the flow table entries for the given flow */
@@ -807,6 +819,8 @@ static void mvpp2_port_c2_cls_init(struct mvpp2_port *port)
c2.attr[0] = MVPP22_CLS_C2_ATTR0_QHIGH(qh) |
MVPP22_CLS_C2_ATTR0_QLOW(ql);
+ c2.valid = true;
+
mvpp2_cls_c2_write(port->priv, &c2);
}
@@ -815,6 +829,7 @@ void mvpp2_cls_init(struct mvpp2 *priv)
{
struct mvpp2_cls_lookup_entry le;
struct mvpp2_cls_flow_entry fe;
+ struct mvpp2_cls_c2_entry c2;
int index;
/* Enable classifier */
@@ -838,6 +853,14 @@ void mvpp2_cls_init(struct mvpp2 *priv)
mvpp2_cls_lookup_write(priv, &le);
}
+ /* Clear C2 TCAM engine table */
+ memset(&c2, 0, sizeof(c2));
+ c2.valid = false;
+ for (index = 0; index < MVPP22_CLS_C2_N_ENTRIES; index++) {
+ c2.index = index;
+ mvpp2_cls_c2_write(priv, &c2);
+ }
+
mvpp2_cls_port_init_flows(priv);
}
@@ -97,9 +97,14 @@ enum mvpp22_cls_c2_fwd_action {
struct mvpp2_cls_c2_entry {
u32 index;
+ /* TCAM lookup key */
u32 tcam[MVPP2_CLS_C2_TCAM_WORDS];
+ /* Actions to perform upon TCAM match */
u32 act;
+ /* Attributes relative to the actions to perform */
u32 attr[MVPP2_CLS_C2_ATTR_WORDS];
+ /* Entry validity */
+ u8 valid;
};
/* Classifier C2 engine entries */
C2 TCAM entries can be invalidated to avoid unwanted matches. Make sure all entries are invalidated at init, then validate only the ones we use. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 2 ++ .../net/ethernet/marvell/mvpp2/mvpp2_cls.c | 23 +++++++++++++++++++ .../net/ethernet/marvell/mvpp2/mvpp2_cls.h | 5 ++++ 3 files changed, 30 insertions(+)