net: dsa: felix: add port policers

This patch is a trivial passthrough towards the ocelot library, which
support port policers since commit 2c1d029a017f ("net: mscc: ocelot:
Implement port policers via tc command").

Some data structure conversion between the DSA core and the Ocelot
library is necessary, for policer parameters.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index e2effeaa685e978207a857890ff34bceec9a16d0..79ca3aadb86410728a84eb2e32953a7b6acc6de8 100644 (file)
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -13,6 +13,7 @@
 #include <linux/of_net.h>
 #include <linux/pci.h>
 #include <linux/of.h>
+#include <net/pkt_sched.h>
 #include <net/dsa.h>
 #include "felix.h"
 
@@ -650,6 +651,27 @@ static int felix_cls_flower_stats(struct dsa_switch *ds, int port,
        return ocelot_cls_flower_stats(ocelot, port, cls, ingress);
 }
 
+static int felix_port_policer_add(struct dsa_switch *ds, int port,
+                                 struct dsa_mall_policer_tc_entry *policer)
+{
+       struct ocelot *ocelot = ds->priv;
+       struct ocelot_policer pol = {
+               .rate = div_u64(policer->rate_bytes_per_sec, 1000) * 8,
+               .burst = div_u64(policer->rate_bytes_per_sec *
+                                PSCHED_NS2TICKS(policer->burst),
+                                PSCHED_TICKS_PER_SEC),
+       };
+
+       return ocelot_port_policer_add(ocelot, port, &pol);
+}
+
+static void felix_port_policer_del(struct dsa_switch *ds, int port)
+{
+       struct ocelot *ocelot = ds->priv;
+
+       ocelot_port_policer_del(ocelot, port);
+}
+
 static const struct dsa_switch_ops felix_switch_ops = {
        .get_tag_protocol       = felix_get_tag_protocol,
        .setup                  = felix_setup,
@@ -683,6 +705,8 @@ static const struct dsa_switch_ops felix_switch_ops = {
        .port_txtstamp          = felix_txtstamp,
        .port_change_mtu        = felix_change_mtu,
        .port_max_mtu           = felix_get_max_mtu,
+       .port_policer_add       = felix_port_policer_add,
+       .port_policer_del       = felix_port_policer_del,
        .cls_flower_add         = felix_cls_flower_add,
        .cls_flower_del         = felix_cls_flower_del,
        .cls_flower_stats       = felix_cls_flower_stats,

diff --git a/drivers/net/ethernet/mscc/ocelot_police.c b/drivers/net/ethernet/mscc/ocelot_police.c
index 8d25b2706ff0bb2ba139b87c3c5fca41bbadffc0..2e1d8e18733289c1416b2d7dfd03a6b858739c8e 100644 (file)
--- a/drivers/net/ethernet/mscc/ocelot_police.c
+++ b/drivers/net/ethernet/mscc/ocelot_police.c
@@ -4,6 +4,7 @@
  * Copyright (c) 2019 Microsemi Corporation
  */
 
+#include <soc/mscc/ocelot.h>
 #include "ocelot_police.h"
 
 enum mscc_qos_rate_mode {
@@ -203,6 +204,7 @@ int ocelot_port_policer_add(struct ocelot *ocelot, int port,
 
        return 0;
 }
+EXPORT_SYMBOL(ocelot_port_policer_add);
 
 int ocelot_port_policer_del(struct ocelot *ocelot, int port)
 {
@@ -225,6 +227,7 @@ int ocelot_port_policer_del(struct ocelot *ocelot, int port)
 
        return 0;
 }
+EXPORT_SYMBOL(ocelot_port_policer_del);
 
 int ocelot_ace_policer_add(struct ocelot *ocelot, u32 pol_ix,
                           struct ocelot_policer *pol)

diff --git a/drivers/net/ethernet/mscc/ocelot_police.h b/drivers/net/ethernet/mscc/ocelot_police.h
index 22025cce0a6affb64aa4b0e869a4019b3acfa2a4..792abd28010a824836442f2773ec985cdb1fd265 100644 (file)
--- a/drivers/net/ethernet/mscc/ocelot_police.h
+++ b/drivers/net/ethernet/mscc/ocelot_police.h
@@ -9,16 +9,6 @@
 
 #include "ocelot.h"
 
-struct ocelot_policer {
-       u32 rate; /* kilobit per second */
-       u32 burst; /* bytes */
-};
-
-int ocelot_port_policer_add(struct ocelot *ocelot, int port,
-                           struct ocelot_policer *pol);
-
-int ocelot_port_policer_del(struct ocelot *ocelot, int port);
-
 int ocelot_ace_policer_add(struct ocelot *ocelot, u32 pol_ix,
                           struct ocelot_policer *pol);
 

diff --git a/drivers/net/ethernet/mscc/ocelot_tc.c b/drivers/net/ethernet/mscc/ocelot_tc.c
index 3ff5ef41eccfc9730f29de8eac269e75435d1261..d326e231f0ad00ac3d451d9465a020b43cadaa23 100644 (file)
--- a/drivers/net/ethernet/mscc/ocelot_tc.c
+++ b/drivers/net/ethernet/mscc/ocelot_tc.c
@@ -4,8 +4,8 @@
  * Copyright (c) 2019 Microsemi Corporation
  */
 
+#include <soc/mscc/ocelot.h>
 #include "ocelot_tc.h"
-#include "ocelot_police.h"
 #include "ocelot_ace.h"
 #include <net/pkt_cls.h>
 

diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h
index b5d61af9f7436fdb9bab35cfa30ed98c002be146..ebffcb36a7e342a437d4641aa00e5e15673c1564 100644 (file)
--- a/include/soc/mscc/ocelot.h
+++ b/include/soc/mscc/ocelot.h
@@ -549,6 +549,11 @@ struct ocelot {
        spinlock_t                      ptp_clock_lock;
 };
 
+struct ocelot_policer {
+       u32 rate; /* kilobit per second */
+       u32 burst; /* bytes */
+};
+
 #define ocelot_read_ix(ocelot, reg, gi, ri) __ocelot_read_ix(ocelot, reg, reg##_GSZ * (gi) + reg##_RSZ * (ri))
 #define ocelot_read_gix(ocelot, reg, gi) __ocelot_read_ix(ocelot, reg, reg##_GSZ * (gi))
 #define ocelot_read_rix(ocelot, reg, ri) __ocelot_read_ix(ocelot, reg, reg##_RSZ * (ri))
@@ -619,6 +624,9 @@ int ocelot_port_add_txtstamp_skb(struct ocelot_port *ocelot_port,
 void ocelot_get_txtstamp(struct ocelot *ocelot);
 void ocelot_port_set_maxlen(struct ocelot *ocelot, int port, size_t sdu);
 int ocelot_get_max_mtu(struct ocelot *ocelot, int port);
+int ocelot_port_policer_add(struct ocelot *ocelot, int port,
+                           struct ocelot_policer *pol);
+int ocelot_port_policer_del(struct ocelot *ocelot, int port);
 int ocelot_cls_flower_replace(struct ocelot *ocelot, int port,
                              struct flow_cls_offload *f, bool ingress);
 int ocelot_cls_flower_destroy(struct ocelot *ocelot, int port,