diff options
Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot_flower.c')
-rw-r--r-- | drivers/net/ethernet/mscc/ocelot_flower.c | 128 |
1 files changed, 115 insertions, 13 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_flower.c b/drivers/net/ethernet/mscc/ocelot_flower.c index 769a8159373e..949858891973 100644 --- a/drivers/net/ethernet/mscc/ocelot_flower.c +++ b/drivers/net/ethernet/mscc/ocelot_flower.c @@ -20,6 +20,9 @@ (1 * VCAP_BLOCK + (lookup) * VCAP_LOOKUP) #define VCAP_IS2_CHAIN(lookup, pag) \ (2 * VCAP_BLOCK + (lookup) * VCAP_LOOKUP + (pag)) +/* PSFP chain and block ID */ +#define PSFP_BLOCK_ID OCELOT_NUM_VCAP_BLOCKS +#define OCELOT_PSFP_CHAIN (3 * VCAP_BLOCK) static int ocelot_chain_to_block(int chain, bool ingress) { @@ -46,6 +49,9 @@ static int ocelot_chain_to_block(int chain, bool ingress) if (chain == VCAP_IS2_CHAIN(lookup, pag)) return VCAP_IS2; + if (chain == OCELOT_PSFP_CHAIN) + return PSFP_BLOCK_ID; + return -EOPNOTSUPP; } @@ -84,7 +90,8 @@ static bool ocelot_is_goto_target_valid(int goto_target, int chain, goto_target == VCAP_IS1_CHAIN(1) || goto_target == VCAP_IS1_CHAIN(2) || goto_target == VCAP_IS2_CHAIN(0, 0) || - goto_target == VCAP_IS2_CHAIN(1, 0)); + goto_target == VCAP_IS2_CHAIN(1, 0) || + goto_target == OCELOT_PSFP_CHAIN); if (chain == VCAP_IS1_CHAIN(0)) return (goto_target == VCAP_IS1_CHAIN(1)); @@ -111,7 +118,11 @@ static bool ocelot_is_goto_target_valid(int goto_target, int chain, if (chain == VCAP_IS2_CHAIN(0, pag)) return (goto_target == VCAP_IS2_CHAIN(1, pag)); - /* VCAP IS2 lookup 1 cannot jump anywhere */ + /* VCAP IS2 lookup 1 can goto to PSFP block if hardware support */ + for (pag = 0; pag < VCAP_IS2_NUM_PAG; pag++) + if (chain == VCAP_IS2_CHAIN(1, pag)) + return (goto_target == OCELOT_PSFP_CHAIN); + return false; } @@ -211,6 +222,7 @@ static int ocelot_flower_parse_action(struct ocelot *ocelot, int port, 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; @@ -269,10 +281,14 @@ static int ocelot_flower_parse_action(struct ocelot *ocelot, int port, filter->type = OCELOT_VCAP_FILTER_OFFLOAD; break; case FLOW_ACTION_POLICE: + if (filter->block_id == PSFP_BLOCK_ID) { + filter->type = OCELOT_PSFP_FILTER_OFFLOAD; + break; + } if (filter->block_id != VCAP_IS2 || filter->lookup != 0) { NL_SET_ERR_MSG_MOD(extack, - "Police action can only be offloaded to VCAP IS2 lookup 0"); + "Police action can only be offloaded to VCAP IS2 lookup 0 or PSFP"); return -EOPNOTSUPP; } if (filter->goto_target != -1) { @@ -286,6 +302,20 @@ static int ocelot_flower_parse_action(struct ocelot *ocelot, int port, return -EOPNOTSUPP; } filter->action.police_ena = true; + + pol_ix = a->hw_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; @@ -399,6 +429,14 @@ static int ocelot_flower_parse_action(struct ocelot *ocelot, int port, filter->action.pcp_a_val = a->vlan.prio; filter->type = OCELOT_VCAP_FILTER_OFFLOAD; break; + case FLOW_ACTION_GATE: + if (filter->block_id != PSFP_BLOCK_ID) { + NL_SET_ERR_MSG_MOD(extack, + "Gate action can only be offloaded to PSFP chain"); + return -EOPNOTSUPP; + } + filter->type = OCELOT_PSFP_FILTER_OFFLOAD; + break; default: NL_SET_ERR_MSG_MOD(extack, "Cannot offload action"); return -EOPNOTSUPP; @@ -407,7 +445,7 @@ static int ocelot_flower_parse_action(struct ocelot *ocelot, int port, if (filter->goto_target == -1) { if ((filter->block_id == VCAP_IS2 && filter->lookup == 1) || - chain == 0) { + chain == 0 || filter->block_id == PSFP_BLOCK_ID) { allow_missing_goto_target = true; } else { NL_SET_ERR_MSG_MOD(extack, "Missing GOTO action"); @@ -521,13 +559,6 @@ ocelot_flower_parse_key(struct ocelot *ocelot, int port, bool ingress, return -EOPNOTSUPP; } - if (filter->block_id == VCAP_IS1 && - !is_zero_ether_addr(match.mask->dst)) { - NL_SET_ERR_MSG_MOD(extack, - "Key type S1_NORMAL cannot match on destination MAC"); - return -EOPNOTSUPP; - } - /* The hw support mac matches only for MAC_ETYPE key, * therefore if other matches(port, tcp flags, etc) are added * then just bail out @@ -542,6 +573,14 @@ ocelot_flower_parse_key(struct ocelot *ocelot, int port, bool ingress, return -EOPNOTSUPP; flow_rule_match_eth_addrs(rule, &match); + + if (filter->block_id == VCAP_IS1 && + !is_zero_ether_addr(match.mask->dst)) { + NL_SET_ERR_MSG_MOD(extack, + "Key type S1_NORMAL cannot match on destination MAC"); + return -EOPNOTSUPP; + } + filter->key_type = OCELOT_VCAP_KEY_ETYPE; ether_addr_copy(filter->key.etype.dmac.value, match.key->dst); @@ -689,6 +728,10 @@ static int ocelot_flower_parse(struct ocelot *ocelot, int port, bool ingress, if (ret) return ret; + /* PSFP filter need to parse key by stream identification function. */ + if (filter->type == OCELOT_PSFP_FILTER_OFFLOAD) + return 0; + return ocelot_flower_parse_key(ocelot, port, ingress, f, filter); } @@ -763,13 +806,34 @@ int ocelot_cls_flower_replace(struct ocelot *ocelot, int port, struct netlink_ext_ack *extack = f->common.extack; struct ocelot_vcap_filter *filter; int chain = f->common.chain_index; - int ret; + int block_id, ret; if (chain && !ocelot_find_vcap_filter_that_points_at(ocelot, chain)) { NL_SET_ERR_MSG_MOD(extack, "No default GOTO action points to this chain"); return -EOPNOTSUPP; } + block_id = ocelot_chain_to_block(chain, ingress); + if (block_id < 0) { + NL_SET_ERR_MSG_MOD(extack, "Cannot offload to this chain"); + return -EOPNOTSUPP; + } + + filter = ocelot_vcap_block_find_filter_by_id(&ocelot->block[block_id], + f->cookie, true); + if (filter) { + /* Filter already exists on other ports */ + if (!ingress) { + NL_SET_ERR_MSG_MOD(extack, "VCAP ES0 does not support shared filters"); + return -EOPNOTSUPP; + } + + filter->ingress_port_mask |= BIT(port); + + return ocelot_vcap_filter_replace(ocelot, filter); + } + + /* Filter didn't exist, create it now */ filter = ocelot_vcap_filter_create(ocelot, port, ingress, f); if (!filter) return -ENOMEM; @@ -792,6 +856,15 @@ int ocelot_cls_flower_replace(struct ocelot *ocelot, int port, if (filter->type == OCELOT_VCAP_FILTER_DUMMY) return ocelot_vcap_dummy_filter_add(ocelot, filter); + if (filter->type == OCELOT_PSFP_FILTER_OFFLOAD) { + kfree(filter); + if (ocelot->ops->psfp_filter_add) + return ocelot->ops->psfp_filter_add(ocelot, port, f); + + NL_SET_ERR_MSG_MOD(extack, "PSFP chain is not supported in HW"); + return -EOPNOTSUPP; + } + return ocelot_vcap_filter_add(ocelot, filter, f->common.extack); } EXPORT_SYMBOL_GPL(ocelot_cls_flower_replace); @@ -807,6 +880,13 @@ int ocelot_cls_flower_destroy(struct ocelot *ocelot, int port, if (block_id < 0) return 0; + if (block_id == PSFP_BLOCK_ID) { + if (ocelot->ops->psfp_filter_del) + return ocelot->ops->psfp_filter_del(ocelot, f); + + return -EOPNOTSUPP; + } + block = &ocelot->block[block_id]; filter = ocelot_vcap_block_find_filter_by_id(block, f->cookie, true); @@ -816,6 +896,12 @@ int ocelot_cls_flower_destroy(struct ocelot *ocelot, int port, if (filter->type == OCELOT_VCAP_FILTER_DUMMY) return ocelot_vcap_dummy_filter_del(ocelot, filter); + if (ingress) { + filter->ingress_port_mask &= ~BIT(port); + if (filter->ingress_port_mask) + return ocelot_vcap_filter_replace(ocelot, filter); + } + return ocelot_vcap_filter_del(ocelot, filter); } EXPORT_SYMBOL_GPL(ocelot_cls_flower_destroy); @@ -825,12 +911,25 @@ int ocelot_cls_flower_stats(struct ocelot *ocelot, int port, { struct ocelot_vcap_filter *filter; struct ocelot_vcap_block *block; + struct flow_stats stats = {0}; int block_id, ret; block_id = ocelot_chain_to_block(f->common.chain_index, ingress); if (block_id < 0) return 0; + if (block_id == PSFP_BLOCK_ID) { + if (ocelot->ops->psfp_stats_get) { + ret = ocelot->ops->psfp_stats_get(ocelot, f, &stats); + if (ret) + return ret; + + goto stats_update; + } + + return -EOPNOTSUPP; + } + block = &ocelot->block[block_id]; filter = ocelot_vcap_block_find_filter_by_id(block, f->cookie, true); @@ -841,7 +940,10 @@ int ocelot_cls_flower_stats(struct ocelot *ocelot, int port, if (ret) return ret; - flow_stats_update(&f->stats, 0x0, filter->stats.pkts, 0, 0x0, + stats.pkts = filter->stats.pkts; + +stats_update: + flow_stats_update(&f->stats, 0x0, stats.pkts, stats.drops, 0x0, FLOW_ACTION_HW_STATS_IMMEDIATE); return 0; } |