fe->data[0] |= MVPP2_CLS_FLOW_TBL0_PORT_ID(port);
}
+static void mvpp2_cls_flow_port_remove(struct mvpp2_cls_flow_entry *fe,
+ u32 port)
+{
+ 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)
{
}
}
+static int mvpp2_cls_c2_port_flow_index(struct mvpp2_port *port, int loc)
+{
+ return MVPP22_CLS_C2_RFS_LOC(port->id, loc);
+}
+
/* Initialize the flow table entries for the given flow */
static void mvpp2_cls_flow_init(struct mvpp2 *priv,
const struct mvpp2_cls_flow *flow)
return 0;
}
+/* Returns the size, in bits, of the corresponding HEK field */
+static int mvpp2_cls_hek_field_size(u32 field)
+{
+ switch (field) {
+ case MVPP22_CLS_HEK_OPT_MAC_DA:
+ return 48;
+ case MVPP22_CLS_HEK_OPT_IP4SA:
+ case MVPP22_CLS_HEK_OPT_IP4DA:
+ return 32;
+ case MVPP22_CLS_HEK_OPT_IP6SA:
+ case MVPP22_CLS_HEK_OPT_IP6DA:
+ return 128;
+ case MVPP22_CLS_HEK_OPT_L4SIP:
+ case MVPP22_CLS_HEK_OPT_L4DIP:
+ return 16;
+ default:
+ return -1;
+ }
+}
+
const struct mvpp2_cls_flow *mvpp2_cls_flow_get(int flow)
{
if (flow >= MVPP2_N_PRS_FLOWS)
mvpp2_rss_port_c2_disable(port);
}
+static void mvpp22_port_c2_lookup_disable(struct mvpp2_port *port, int entry)
+{
+ struct mvpp2_cls_c2_entry c2;
+
+ mvpp2_cls_c2_read(port->priv, entry, &c2);
+
+ /* Clear the port map so that the entry doesn't match anymore */
+ c2.tcam[4] &= ~(MVPP22_CLS_C2_PORT_ID(BIT(port->id)));
+
+ mvpp2_cls_c2_write(port->priv, &c2);
+}
+
/* Set CPU queue number for oversize packets */
void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port)
{
mvpp2_write(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG, val);
}
+static int mvpp2_port_c2_tcam_rule_add(struct mvpp2_port *port,
+ struct mvpp2_rfs_rule *rule)
+{
+ struct flow_action_entry *act;
+ struct mvpp2_cls_c2_entry c2;
+ u8 qh, ql, pmap;
+
+ memset(&c2, 0, sizeof(c2));
+
+ c2.index = mvpp2_cls_c2_port_flow_index(port, rule->loc);
+ if (c2.index < 0)
+ return -EINVAL;
+
+ act = &rule->flow->action.entries[0];
+
+ rule->c2_index = c2.index;
+
+ c2.tcam[0] = (rule->c2_tcam & 0xffff) |
+ ((rule->c2_tcam_mask & 0xffff) << 16);
+ c2.tcam[1] = ((rule->c2_tcam >> 16) & 0xffff) |
+ (((rule->c2_tcam_mask >> 16) & 0xffff) << 16);
+ c2.tcam[2] = ((rule->c2_tcam >> 32) & 0xffff) |
+ (((rule->c2_tcam_mask >> 32) & 0xffff) << 16);
+ c2.tcam[3] = ((rule->c2_tcam >> 48) & 0xffff) |
+ (((rule->c2_tcam_mask >> 48) & 0xffff) << 16);
+
+ pmap = BIT(port->id);
+ 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(rule->loc);
+
+ /* Mark packet as "forwarded to software", needed for RSS */
+ c2.act |= MVPP22_CLS_C2_ACT_FWD(MVPP22_C2_FWD_SW_LOCK);
+
+ c2.act |= MVPP22_CLS_C2_ACT_QHIGH(MVPP22_C2_UPD_LOCK) |
+ MVPP22_CLS_C2_ACT_QLOW(MVPP22_C2_UPD_LOCK);
+
+ qh = ((act->queue.index + port->first_rxq) >> 3) & MVPP22_CLS_C2_ATTR0_QHIGH_MASK;
+ ql = (act->queue.index + port->first_rxq) & MVPP22_CLS_C2_ATTR0_QLOW_MASK;
+
+ 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);
+
+ return 0;
+}
+
+static int mvpp2_port_c2_rfs_rule_insert(struct mvpp2_port *port,
+ struct mvpp2_rfs_rule *rule)
+{
+ return mvpp2_port_c2_tcam_rule_add(port, rule);
+}
+
+static int mvpp2_port_cls_rfs_rule_remove(struct mvpp2_port *port,
+ struct mvpp2_rfs_rule *rule)
+{
+ const struct mvpp2_cls_flow *flow;
+ struct mvpp2_cls_flow_entry fe;
+ int index, i;
+
+ for_each_cls_flow_id_containing_type(i, rule->flow_type) {
+ flow = mvpp2_cls_flow_get(i);
+ if (!flow)
+ return 0;
+
+ index = MVPP2_CLS_FLT_C2_RFS(port->id, flow->flow_id, rule->loc);
+
+ mvpp2_cls_flow_read(port->priv, index, &fe);
+ mvpp2_cls_flow_port_remove(&fe, BIT(port->id));
+ mvpp2_cls_flow_write(port->priv, &fe);
+ }
+
+ if (rule->c2_index >= 0)
+ mvpp22_port_c2_lookup_disable(port, rule->c2_index);
+
+ return 0;
+}
+
+static int mvpp2_port_flt_rfs_rule_insert(struct mvpp2_port *port,
+ struct mvpp2_rfs_rule *rule)
+{
+ const struct mvpp2_cls_flow *flow;
+ struct mvpp2 *priv = port->priv;
+ struct mvpp2_cls_flow_entry fe;
+ int index, ret, i;
+
+ if (rule->engine != MVPP22_CLS_ENGINE_C2)
+ return -EOPNOTSUPP;
+
+ ret = mvpp2_port_c2_rfs_rule_insert(port, rule);
+ if (ret)
+ return ret;
+
+ for_each_cls_flow_id_containing_type(i, rule->flow_type) {
+ flow = mvpp2_cls_flow_get(i);
+ if (!flow)
+ return 0;
+
+ index = MVPP2_CLS_FLT_C2_RFS(port->id, flow->flow_id, rule->loc);
+
+ mvpp2_cls_flow_read(priv, index, &fe);
+ mvpp2_cls_flow_eng_set(&fe, rule->engine);
+ mvpp2_cls_flow_port_id_sel(&fe, true);
+ mvpp2_flow_set_hek_fields(&fe, rule->hek_fields);
+ mvpp2_cls_flow_lu_type_set(&fe, rule->loc);
+ mvpp2_cls_flow_port_add(&fe, 0xf);
+
+ mvpp2_cls_flow_write(priv, &fe);
+ }
+
+ return 0;
+}
+
+static int mvpp2_cls_c2_build_match(struct mvpp2_rfs_rule *rule)
+{
+ struct flow_rule *flow = rule->flow;
+ struct flow_action_entry *act;
+ int offs = 64;
+
+ act = &flow->action.entries[0];
+
+ if (flow_rule_match_key(flow, FLOW_DISSECTOR_KEY_PORTS)) {
+ struct flow_match_ports match;
+
+ flow_rule_match_ports(flow, &match);
+ if (match.mask->src) {
+ rule->hek_fields |= MVPP22_CLS_HEK_OPT_L4SIP;
+ offs -= mvpp2_cls_hek_field_size(MVPP22_CLS_HEK_OPT_L4SIP);
+
+ rule->c2_tcam |= ((u64)ntohs(match.key->src)) << offs;
+ rule->c2_tcam_mask |= ((u64)ntohs(match.mask->src)) << offs;
+ }
+
+ if (match.mask->dst) {
+ rule->hek_fields |= MVPP22_CLS_HEK_OPT_L4DIP;
+ offs -= mvpp2_cls_hek_field_size(MVPP22_CLS_HEK_OPT_L4DIP);
+
+ rule->c2_tcam |= ((u64)ntohs(match.key->dst)) << offs;
+ rule->c2_tcam_mask |= ((u64)ntohs(match.mask->dst)) << offs;
+ }
+ }
+
+ if (hweight16(rule->hek_fields) > MVPP2_FLOW_N_FIELDS)
+ return -EOPNOTSUPP;
+
+ return 0;
+}
+
+static int mvpp2_cls_rfs_parse_rule(struct mvpp2_rfs_rule *rule)
+{
+ struct flow_rule *flow = rule->flow;
+ struct flow_action_entry *act;
+
+ act = &flow->action.entries[0];
+ if (act->id != FLOW_ACTION_QUEUE)
+ return -EOPNOTSUPP;
+
+ /* For now, only use the C2 engine which has a HEK size limited to 64
+ * bits for TCAM matching.
+ */
+ rule->engine = MVPP22_CLS_ENGINE_C2;
+
+ if (mvpp2_cls_c2_build_match(rule))
+ return -EINVAL;
+
+ return 0;
+}
+
+int mvpp2_ethtool_cls_rule_get(struct mvpp2_port *port,
+ struct ethtool_rxnfc *rxnfc)
+{
+ struct mvpp2_ethtool_fs *efs;
+
+ if (rxnfc->fs.location >= MVPP2_N_RFS_RULES)
+ return -EINVAL;
+
+ efs = port->rfs_rules[rxnfc->fs.location];
+ if (!efs)
+ return -ENOENT;
+
+ memcpy(rxnfc, &efs->rxnfc, sizeof(efs->rxnfc));
+
+ return 0;
+}
+
+int mvpp2_ethtool_cls_rule_ins(struct mvpp2_port *port,
+ struct ethtool_rxnfc *info)
+{
+ struct ethtool_rx_flow_spec_input input = {};
+ struct ethtool_rx_flow_rule *ethtool_rule;
+ struct mvpp2_ethtool_fs *efs, *old_efs;
+ int ret = 0;
+
+ if (info->fs.location >= 4 ||
+ info->fs.location < 0)
+ return -EINVAL;
+
+ efs = kzalloc(sizeof(*efs), GFP_KERNEL);
+ if (!efs)
+ return -ENOMEM;
+
+ input.fs = &info->fs;
+
+ ethtool_rule = ethtool_rx_flow_rule_create(&input);
+ if (IS_ERR(ethtool_rule)) {
+ ret = PTR_ERR(ethtool_rule);
+ goto clean_rule;
+ }
+
+ efs->rule.flow = ethtool_rule->rule;
+ efs->rule.flow_type = mvpp2_cls_ethtool_flow_to_type(info->fs.flow_type);
+
+ ret = mvpp2_cls_rfs_parse_rule(&efs->rule);
+ if (ret)
+ goto clean_eth_rule;
+
+ efs->rule.loc = info->fs.location;
+
+ /* Replace an already existing rule */
+ if (port->rfs_rules[efs->rule.loc]) {
+ old_efs = port->rfs_rules[efs->rule.loc];
+ ret = mvpp2_port_cls_rfs_rule_remove(port, &old_efs->rule);
+ if (ret)
+ goto clean_eth_rule;
+ kfree(old_efs);
+ port->n_rfs_rules--;
+ }
+
+ ret = mvpp2_port_flt_rfs_rule_insert(port, &efs->rule);
+ if (ret)
+ goto clean_eth_rule;
+
+ memcpy(&efs->rxnfc, info, sizeof(*info));
+ port->rfs_rules[efs->rule.loc] = efs;
+ port->n_rfs_rules++;
+
+ return ret;
+
+clean_eth_rule:
+ ethtool_rx_flow_rule_destroy(ethtool_rule);
+clean_rule:
+ kfree(efs);
+ return ret;
+}
+
+int mvpp2_ethtool_cls_rule_del(struct mvpp2_port *port,
+ struct ethtool_rxnfc *info)
+{
+ struct mvpp2_ethtool_fs *efs;
+ int ret;
+
+ efs = port->rfs_rules[info->fs.location];
+ if (!efs)
+ return -EINVAL;
+
+ /* Remove the rule from the engines. */
+ ret = mvpp2_port_cls_rfs_rule_remove(port, &efs->rule);
+ if (ret)
+ return ret;
+
+ port->n_rfs_rules--;
+ port->rfs_rules[info->fs.location] = NULL;
+ kfree(efs);
+
+ return 0;
+}
+
static inline u32 mvpp22_rxfh_indir(struct mvpp2_port *port, u32 rxq)
{
int nrxqs, cpu, cpus = num_possible_cpus();
#define MVPP22_CLS_C2_N_ENTRIES 256
/* Number of per-port dedicated entries in the C2 TCAM */
-#define MVPP22_CLS_C2_PORT_RANGE 8
+#define MVPP22_CLS_C2_PORT_N_FLOWS MVPP2_N_RFS_ENTRIES_PER_FLOW
-#define MVPP22_CLS_C2_PORT_FIRST(p) (MVPP22_CLS_C2_N_ENTRIES - \
- ((p) * MVPP22_CLS_C2_PORT_RANGE))
-#define MVPP22_CLS_C2_RSS_ENTRY(p) (MVPP22_CLS_C2_PORT_FIRST(p) - 1)
+/* Each port has oen range per flow type + one entry controling the global RSS
+ * setting and the default rx queue
+ */
+#define MVPP22_CLS_C2_PORT_RANGE (MVPP22_CLS_C2_PORT_N_FLOWS + 1)
+#define MVPP22_CLS_C2_PORT_FIRST(p) ((p) * MVPP22_CLS_C2_PORT_RANGE)
+#define MVPP22_CLS_C2_RSS_ENTRY(p) (MVPP22_CLS_C2_PORT_FIRST((p) + 1) - 1)
+
+#define MVPP22_CLS_C2_PORT_FLOW_FIRST(p) (MVPP22_CLS_C2_PORT_FIRST(p))
+
+#define MVPP22_CLS_C2_RFS_LOC(p, loc) (MVPP22_CLS_C2_PORT_FLOW_FIRST(p) + (loc))
/* Packet flow ID */
enum mvpp2_prs_flow {
MVPP2_FL_LAST,
};
-enum mvpp2_cls_lu_type {
- MVPP2_CLS_LU_ALL = 0,
-};
-
/* LU Type defined for all engines, and specified in the flow table */
#define MVPP2_CLS_LU_TYPE_MASK 0x3f
struct mvpp2_prs_result_info prs_ri;
};
-#define MVPP2_CLS_FLT_ENTRIES_PER_FLOW (MVPP2_MAX_PORTS + 1)
+#define MVPP2_CLS_FLT_ENTRIES_PER_FLOW (MVPP2_MAX_PORTS + 1 + 16)
#define MVPP2_CLS_FLT_FIRST(id) (((id) - MVPP2_FL_START) * \
MVPP2_CLS_FLT_ENTRIES_PER_FLOW)
-#define MVPP2_CLS_FLT_C2_RSS_ENTRY(id) (MVPP2_CLS_FLT_FIRST(id))
-#define MVPP2_CLS_FLT_HASH_ENTRY(port, id) (MVPP2_CLS_FLT_C2_RSS_ENTRY(id) + (port) + 1)
+
+#define MVPP2_CLS_FLT_C2_RFS(port, id, rfs_n) (MVPP2_CLS_FLT_FIRST(id) + \
+ ((port) * MVPP2_MAX_PORTS) + \
+ (rfs_n))
+
+#define MVPP2_CLS_FLT_C2_RSS_ENTRY(id) (MVPP2_CLS_FLT_C2_RFS(MVPP2_MAX_PORTS, id, 0))
+#define MVPP2_CLS_FLT_HASH_ENTRY(port, id) (MVPP2_CLS_FLT_C2_RSS_ENTRY(id) + 1 + (port))
#define MVPP2_CLS_FLT_LAST(id) (MVPP2_CLS_FLT_FIRST(id) + \
MVPP2_CLS_FLT_ENTRIES_PER_FLOW - 1)
continue; \
else
+#define for_each_cls_flow_id_containing_type(i, type) \
+ for_each_cls_flow_id((i)) \
+ if ((cls_flows[(i)].flow_type & (type)) != (type)) \
+ continue; \
+ else
+
struct mvpp2_cls_flow_entry {
u32 index;
u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS];
void mvpp2_cls_c2_read(struct mvpp2 *priv, int index,
struct mvpp2_cls_c2_entry *c2);
+int mvpp2_ethtool_cls_rule_get(struct mvpp2_port *port,
+ struct ethtool_rxnfc *rxnfc);
+
+int mvpp2_ethtool_cls_rule_ins(struct mvpp2_port *port,
+ struct ethtool_rxnfc *info);
+
+int mvpp2_ethtool_cls_rule_del(struct mvpp2_port *port,
+ struct ethtool_rxnfc *info);
+
#endif
projects / linux.git / commitdiff