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authorMaxime Chevallier <maxime.chevallier@bootlin.com>2019-03-27 09:44:08 +0100
committerDavid S. Miller <davem@davemloft.net>2019-03-27 11:10:57 -0700
commit32f1a672d404b567ae7fcfb04d0cf47b1270e033 (patch)
tree6ab23a5a92f343b7d833805a195787f0931b6d1e /drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
parentdc61b37fd9dcfa9400de5e7a36c85f61abf9b852 (diff)
net: mvpp2: cls: use Lookup Type in classification engines
The PPv2 classifier allows to perform multiple lookups on the same engine when classifying a packet. These lookups can match similar parts of a packet header, but perform different actions upon matching. To differentiate these types of lookups, it's possible to specify a Lookup Type in the flow table entries, which will be part of the key for the lookup engines. This commit introduces the use of Lookup Types for C2 matches. Since for now we only perform C2 lookups to enable RSS, we only need one Lookup Type. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c')
-rw-r--r--drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
index cd2fbb6eaa3a..9e3b9036b75a 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
@@ -454,6 +454,13 @@ static void mvpp2_cls_flow_port_add(struct mvpp2_cls_flow_entry *fe,
fe->data[0] |= MVPP2_CLS_FLOW_TBL0_PORT_ID(port);
}
+static void mvpp2_cls_flow_lu_type_set(struct mvpp2_cls_flow_entry *fe,
+ u8 lu_type)
+{
+ fe->data[1] &= ~MVPP2_CLS_FLOW_TBL1_LU_TYPE(MVPP2_CLS_LU_TYPE_MASK);
+ fe->data[1] |= MVPP2_CLS_FLOW_TBL1_LU_TYPE(lu_type);
+}
+
/* Initialize the parser entry for the given flow */
static void mvpp2_cls_flow_prs_init(struct mvpp2 *priv,
struct mvpp2_cls_flow *flow)
@@ -500,6 +507,7 @@ static void mvpp2_cls_flow_init(struct mvpp2 *priv, struct mvpp2_cls_flow *flow)
mvpp2_cls_flow_last_set(&fe, 0);
mvpp2_cls_flow_pri_set(&fe, 0);
mvpp2_cls_flow_seq_set(&fe, MVPP2_CLS_FLOW_SEQ_FIRST1);
+ mvpp2_cls_flow_lu_type_set(&fe, MVPP2_CLS_LU_ALL);
/* Add all ports */
for (i = 0; i < MVPP2_MAX_PORTS; i++)
@@ -794,6 +802,10 @@ static void mvpp2_port_c2_cls_init(struct mvpp2_port *port)
c2.tcam[4] = MVPP22_CLS_C2_PORT_ID(pmap);
c2.tcam[4] |= MVPP22_CLS_C2_TCAM_EN(MVPP22_CLS_C2_PORT_ID(pmap));
+ /* Match on Lookup Type */
+ c2.tcam[4] |= MVPP22_CLS_C2_TCAM_EN(MVPP22_CLS_C2_LU_TYPE(MVPP2_CLS_LU_TYPE_MASK));
+ c2.tcam[4] |= MVPP22_CLS_C2_LU_TYPE(MVPP2_CLS_LU_ALL);
+
/* Update RSS status after matching this entry */
c2.act = MVPP22_CLS_C2_ACT_RSS_EN(MVPP22_C2_UPD_LOCK);