From: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Date: Thu, 18 Nov 2021 18:12:02 +0800
Subject: net: mscc: ocelot: use index to set vcap policer
Patch-mainline: v5.17-rc1
Git-commit: 77043c37096d4753b9f40e51445f31eb9dc40295
References: jsc#PED-1549
Policer was previously automatically assigned from the highest index to
the lowest index from policer pool. But police action of tc flower now
uses index to set an police entry. This patch uses the police index to
set vcap policers, so that one policer can be shared by multiple rules.
Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/dsa/ocelot/felix.c | 4 +
drivers/net/dsa/ocelot/felix.h | 4 +
drivers/net/dsa/ocelot/felix_vsc9959.c | 6 +
drivers/net/dsa/ocelot/seville_vsc9953.c | 8 ++
drivers/net/ethernet/mscc/ocelot_flower.c | 15 ++++
drivers/net/ethernet/mscc/ocelot_vcap.c | 101 ++++++++++++++++++-----------
drivers/net/ethernet/mscc/ocelot_vsc7514.c | 7 ++
include/soc/mscc/ocelot.h | 14 +++-
8 files changed, 122 insertions(+), 37 deletions(-)
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -1105,6 +1105,10 @@ static int felix_init_structs(struct fel
ocelot->num_stats = felix->info->num_stats;
ocelot->num_mact_rows = felix->info->num_mact_rows;
ocelot->vcap = felix->info->vcap;
+ ocelot->vcap_pol.base = felix->info->vcap_pol_base;
+ ocelot->vcap_pol.max = felix->info->vcap_pol_max;
+ ocelot->vcap_pol.base2 = felix->info->vcap_pol_base2;
+ ocelot->vcap_pol.max2 = felix->info->vcap_pol_max2;
ocelot->ops = felix->info->ops;
ocelot->npi_inj_prefix = OCELOT_TAG_PREFIX_SHORT;
ocelot->npi_xtr_prefix = OCELOT_TAG_PREFIX_SHORT;
--- a/drivers/net/dsa/ocelot/felix.h
+++ b/drivers/net/dsa/ocelot/felix.h
@@ -20,6 +20,10 @@ struct felix_info {
int num_ports;
int num_tx_queues;
struct vcap_props *vcap;
+ u16 vcap_pol_base;
+ u16 vcap_pol_max;
+ u16 vcap_pol_base2;
+ u16 vcap_pol_max2;
int switch_pci_bar;
int imdio_pci_bar;
const struct ptp_clock_info *ptp_caps;
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -19,6 +19,8 @@
#include "felix.h"
#define VSC9959_TAS_GCL_ENTRY_MAX 63
+#define VSC9959_VCAP_POLICER_BASE 63
+#define VSC9959_VCAP_POLICER_MAX 383
static const u32 vsc9959_ana_regmap[] = {
REG(ANA_ADVLEARN, 0x0089a0),
@@ -1988,6 +1990,10 @@ static const struct felix_info felix_inf
.stats_layout = vsc9959_stats_layout,
.num_stats = ARRAY_SIZE(vsc9959_stats_layout),
.vcap = vsc9959_vcap_props,
+ .vcap_pol_base = VSC9959_VCAP_POLICER_BASE,
+ .vcap_pol_max = VSC9959_VCAP_POLICER_MAX,
+ .vcap_pol_base2 = 0,
+ .vcap_pol_max2 = 0,
.num_mact_rows = 2048,
.num_ports = 6,
.num_tx_queues = OCELOT_NUM_TC,
--- a/drivers/net/dsa/ocelot/seville_vsc9953.c
+++ b/drivers/net/dsa/ocelot/seville_vsc9953.c
@@ -18,6 +18,10 @@
#define MSCC_MIIM_CMD_REGAD_SHIFT 20
#define MSCC_MIIM_CMD_PHYAD_SHIFT 25
#define MSCC_MIIM_CMD_VLD BIT(31)
+#define VSC9953_VCAP_POLICER_BASE 11
+#define VSC9953_VCAP_POLICER_MAX 31
+#define VSC9953_VCAP_POLICER_BASE2 120
+#define VSC9953_VCAP_POLICER_MAX2 161
static const u32 vsc9953_ana_regmap[] = {
REG(ANA_ADVLEARN, 0x00b500),
@@ -1174,6 +1178,10 @@ static const struct felix_info seville_i
.stats_layout = vsc9953_stats_layout,
.num_stats = ARRAY_SIZE(vsc9953_stats_layout),
.vcap = vsc9953_vcap_props,
+ .vcap_pol_base = VSC9953_VCAP_POLICER_BASE,
+ .vcap_pol_max = VSC9953_VCAP_POLICER_MAX,
+ .vcap_pol_base2 = VSC9953_VCAP_POLICER_BASE2,
+ .vcap_pol_max2 = VSC9953_VCAP_POLICER_MAX2,
.num_mact_rows = 2048,
.num_ports = 10,
.num_tx_queues = OCELOT_NUM_TC,
--- a/drivers/net/ethernet/mscc/ocelot_flower.c
+++ b/drivers/net/ethernet/mscc/ocelot_flower.c
@@ -222,6 +222,7 @@ static int ocelot_flower_parse_action(st
const struct flow_action_entry *a;
enum ocelot_tag_tpid_sel tpid;
int i, chain, egress_port;
+ u32 pol_ix, pol_max;
u64 rate;
int err;
@@ -301,6 +302,20 @@ static int ocelot_flower_parse_action(st
return -EOPNOTSUPP;
}
filter->action.police_ena = true;
+
+ pol_ix = a->police.index + ocelot->vcap_pol.base;
+ pol_max = ocelot->vcap_pol.max;
+
+ if (ocelot->vcap_pol.max2 && pol_ix > pol_max) {
+ pol_ix += ocelot->vcap_pol.base2 - pol_max - 1;
+ pol_max = ocelot->vcap_pol.max2;
+ }
+
+ if (pol_ix >= pol_max)
+ return -EINVAL;
+
+ filter->action.pol_ix = pol_ix;
+
rate = a->police.rate_bytes_ps;
filter->action.pol.rate = div_u64(rate, 1000) * 8;
filter->action.pol.burst = a->police.burst;
--- a/drivers/net/ethernet/mscc/ocelot_vcap.c
+++ b/drivers/net/ethernet/mscc/ocelot_vcap.c
@@ -887,10 +887,18 @@ static void vcap_entry_set(struct ocelot
return es0_entry_set(ocelot, ix, filter);
}
-static int ocelot_vcap_policer_add(struct ocelot *ocelot, u32 pol_ix,
- struct ocelot_policer *pol)
+struct vcap_policer_entry {
+ struct list_head list;
+ refcount_t refcount;
+ u32 pol_ix;
+};
+
+int ocelot_vcap_policer_add(struct ocelot *ocelot, u32 pol_ix,
+ struct ocelot_policer *pol)
{
struct qos_policer_conf pp = { 0 };
+ struct vcap_policer_entry *tmp;
+ int ret;
if (!pol)
return -EINVAL;
@@ -899,57 +907,74 @@ static int ocelot_vcap_policer_add(struc
pp.pir = pol->rate;
pp.pbs = pol->burst;
- return qos_policer_conf_set(ocelot, 0, pol_ix, &pp);
+ list_for_each_entry(tmp, &ocelot->vcap_pol.pol_list, list)
+ if (tmp->pol_ix == pol_ix) {
+ refcount_inc(&tmp->refcount);
+ return 0;
+ }
+
+ tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
+ if (!tmp)
+ return -ENOMEM;
+
+ ret = qos_policer_conf_set(ocelot, 0, pol_ix, &pp);
+ if (ret) {
+ kfree(tmp);
+ return ret;
+ }
+
+ tmp->pol_ix = pol_ix;
+ refcount_set(&tmp->refcount, 1);
+ list_add_tail(&tmp->list, &ocelot->vcap_pol.pol_list);
+
+ return 0;
}
+EXPORT_SYMBOL(ocelot_vcap_policer_add);
-static void ocelot_vcap_policer_del(struct ocelot *ocelot,
- struct ocelot_vcap_block *block,
- u32 pol_ix)
+int ocelot_vcap_policer_del(struct ocelot *ocelot, u32 pol_ix)
{
- struct ocelot_vcap_filter *filter;
struct qos_policer_conf pp = {0};
- int index = -1;
-
- if (pol_ix < block->pol_lpr)
- return;
+ struct vcap_policer_entry *tmp, *n;
+ u8 z = 0;
- list_for_each_entry(filter, &block->rules, list) {
- index++;
- if (filter->block_id == VCAP_IS2 &&
- filter->action.police_ena &&
- filter->action.pol_ix < pol_ix) {
- filter->action.pol_ix += 1;
- ocelot_vcap_policer_add(ocelot, filter->action.pol_ix,
- &filter->action.pol);
- is2_entry_set(ocelot, index, filter);
+ list_for_each_entry_safe(tmp, n, &ocelot->vcap_pol.pol_list, list)
+ if (tmp->pol_ix == pol_ix) {
+ z = refcount_dec_and_test(&tmp->refcount);
+ if (z) {
+ list_del(&tmp->list);
+ kfree(tmp);
+ }
}
- }
- pp.mode = MSCC_QOS_RATE_MODE_DISABLED;
- qos_policer_conf_set(ocelot, 0, pol_ix, &pp);
+ if (z) {
+ pp.mode = MSCC_QOS_RATE_MODE_DISABLED;
+ return qos_policer_conf_set(ocelot, 0, pol_ix, &pp);
+ }
- block->pol_lpr++;
+ return 0;
}
+EXPORT_SYMBOL(ocelot_vcap_policer_del);
-static void ocelot_vcap_filter_add_to_block(struct ocelot *ocelot,
- struct ocelot_vcap_block *block,
- struct ocelot_vcap_filter *filter)
+static int ocelot_vcap_filter_add_to_block(struct ocelot *ocelot,
+ struct ocelot_vcap_block *block,
+ struct ocelot_vcap_filter *filter)
{
struct ocelot_vcap_filter *tmp;
struct list_head *pos, *n;
+ int ret;
if (filter->block_id == VCAP_IS2 && filter->action.police_ena) {
- block->pol_lpr--;
- filter->action.pol_ix = block->pol_lpr;
- ocelot_vcap_policer_add(ocelot, filter->action.pol_ix,
- &filter->action.pol);
+ ret = ocelot_vcap_policer_add(ocelot, filter->action.pol_ix,
+ &filter->action.pol);
+ if (ret)
+ return ret;
}
block->count++;
if (list_empty(&block->rules)) {
list_add(&filter->list, &block->rules);
- return;
+ return 0;
}
list_for_each_safe(pos, n, &block->rules) {
@@ -958,6 +983,8 @@ static void ocelot_vcap_filter_add_to_bl
break;
}
list_add(&filter->list, pos->prev);
+
+ return 0;
}
static bool ocelot_vcap_filter_equal(const struct ocelot_vcap_filter *a,
@@ -1132,7 +1159,7 @@ int ocelot_vcap_filter_add(struct ocelot
struct netlink_ext_ack *extack)
{
struct ocelot_vcap_block *block = &ocelot->block[filter->block_id];
- int i, index;
+ int i, index, ret;
if (!ocelot_exclusive_mac_etype_filter_rules(ocelot, filter)) {
NL_SET_ERR_MSG_MOD(extack,
@@ -1141,7 +1168,9 @@ int ocelot_vcap_filter_add(struct ocelot
}
/* Add filter to the linked list */
- ocelot_vcap_filter_add_to_block(ocelot, block, filter);
+ ret = ocelot_vcap_filter_add_to_block(ocelot, block, filter);
+ if (ret)
+ return ret;
/* Get the index of the inserted filter */
index = ocelot_vcap_block_get_filter_index(block, filter);
@@ -1174,7 +1203,7 @@ static void ocelot_vcap_block_remove_fil
if (ocelot_vcap_filter_equal(filter, tmp)) {
if (tmp->block_id == VCAP_IS2 &&
tmp->action.police_ena)
- ocelot_vcap_policer_del(ocelot, block,
+ ocelot_vcap_policer_del(ocelot,
tmp->action.pol_ix);
list_del(pos);
@@ -1366,13 +1395,13 @@ int ocelot_vcap_init(struct ocelot *ocel
struct vcap_props *vcap = &ocelot->vcap[i];
INIT_LIST_HEAD(&block->rules);
- block->pol_lpr = OCELOT_POLICER_DISCARD - 1;
ocelot_vcap_detect_constants(ocelot, vcap);
ocelot_vcap_init_one(ocelot, vcap);
}
INIT_LIST_HEAD(&ocelot->dummy_rules);
+ INIT_LIST_HEAD(&ocelot->vcap_pol.pol_list);
return 0;
}
--- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c
+++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c
@@ -19,6 +19,9 @@
#include <soc/mscc/ocelot_hsio.h>
#include "ocelot.h"
+#define VSC7514_VCAP_POLICER_BASE 128
+#define VSC7514_VCAP_POLICER_MAX 191
+
static const u32 ocelot_ana_regmap[] = {
REG(ANA_ADVLEARN, 0x009000),
REG(ANA_VLANMASK, 0x009004),
@@ -1183,6 +1186,10 @@ static int mscc_ocelot_probe(struct plat
ocelot->num_flooding_pgids = 1;
ocelot->vcap = vsc7514_vcap_props;
+
+ ocelot->vcap_pol.base = VSC7514_VCAP_POLICER_BASE;
+ ocelot->vcap_pol.max = VSC7514_VCAP_POLICER_MAX;
+
ocelot->npi = -1;
err = ocelot_init(ocelot);
--- a/include/soc/mscc/ocelot.h
+++ b/include/soc/mscc/ocelot.h
@@ -562,10 +562,17 @@ struct ocelot_ops {
struct flow_stats *stats);
};
+struct ocelot_vcap_policer {
+ struct list_head pol_list;
+ u16 base;
+ u16 max;
+ u16 base2;
+ u16 max2;
+};
+
struct ocelot_vcap_block {
struct list_head rules;
int count;
- int pol_lpr;
};
struct ocelot_vlan {
@@ -678,6 +685,7 @@ struct ocelot {
struct list_head dummy_rules;
struct ocelot_vcap_block block[3];
+ struct ocelot_vcap_policer vcap_pol;
struct vcap_props *vcap;
struct ocelot_psfp_list psfp;
@@ -885,6 +893,10 @@ int ocelot_mact_learn_streamdata(struct
enum macaccess_entry_type type,
int sfid, int ssid);
+int ocelot_vcap_policer_add(struct ocelot *ocelot, u32 pol_ix,
+ struct ocelot_policer *pol);
+int ocelot_vcap_policer_del(struct ocelot *ocelot, u32 pol_ix);
+
#if IS_ENABLED(CONFIG_BRIDGE_MRP)
int ocelot_mrp_add(struct ocelot *ocelot, int port,
const struct switchdev_obj_mrp *mrp);