From e4a635a65415e22d853233930a4706a684385b3d Mon Sep 17 00:00:00 2001 From: Kiran Kumar K Date: Wed, 26 Jun 2019 16:12:14 +0530 Subject: [PATCH] net/octeontx2: support flow destroy ops Adding few more flow operations like flow_destroy, flow_isolate and flow_flush. Signed-off-by: Kiran Kumar K Signed-off-by: Vivek Sharma --- drivers/net/octeontx2/otx2_flow.c | 206 ++++++++++++++++++++++++++++++ drivers/net/octeontx2/otx2_rx.h | 3 + 2 files changed, 209 insertions(+) diff --git a/drivers/net/octeontx2/otx2_flow.c b/drivers/net/octeontx2/otx2_flow.c index 896aef00ab..24bde623d1 100644 --- a/drivers/net/octeontx2/otx2_flow.c +++ b/drivers/net/octeontx2/otx2_flow.c @@ -5,6 +5,48 @@ #include "otx2_ethdev.h" #include "otx2_flow.h" +int +otx2_flow_free_all_resources(struct otx2_eth_dev *hw) +{ + struct otx2_npc_flow_info *npc = &hw->npc_flow; + struct otx2_mbox *mbox = hw->mbox; + struct otx2_mcam_ents_info *info; + struct rte_bitmap *bmap; + struct rte_flow *flow; + int entry_count = 0; + int rc, idx; + + for (idx = 0; idx < npc->flow_max_priority; idx++) { + info = &npc->flow_entry_info[idx]; + entry_count += info->live_ent; + } + + if (entry_count == 0) + return 0; + + /* Free all MCAM entries allocated */ + rc = otx2_flow_mcam_free_all_entries(mbox); + + /* Free any MCAM counters and delete flow list */ + for (idx = 0; idx < npc->flow_max_priority; idx++) { + while ((flow = TAILQ_FIRST(&npc->flow_list[idx])) != NULL) { + if (flow->ctr_id != NPC_COUNTER_NONE) + rc |= otx2_flow_mcam_free_counter(mbox, + flow->ctr_id); + + TAILQ_REMOVE(&npc->flow_list[idx], flow, next); + rte_free(flow); + bmap = npc->live_entries[flow->priority]; + rte_bitmap_clear(bmap, flow->mcam_id); + } + info = &npc->flow_entry_info[idx]; + info->free_ent = 0; + info->live_ent = 0; + } + return rc; +} + + static int flow_program_npc(struct otx2_parse_state *pst, struct otx2_mbox *mbox, struct otx2_npc_flow_info *flow_info) @@ -237,6 +279,27 @@ flow_program_rss_action(struct rte_eth_dev *eth_dev, return 0; } +static int +flow_free_rss_action(struct rte_eth_dev *eth_dev, + struct rte_flow *flow) +{ + struct otx2_eth_dev *dev = eth_dev->data->dev_private; + struct otx2_npc_flow_info *npc = &dev->npc_flow; + uint32_t rss_grp; + + if (flow->npc_action & NIX_RX_ACTIONOP_RSS) { + rss_grp = (flow->npc_action >> NIX_RSS_ACT_GRP_OFFSET) & + NIX_RSS_ACT_GRP_MASK; + if (rss_grp == 0 || rss_grp >= npc->rss_grps) + return -EINVAL; + + rte_bitmap_clear(npc->rss_grp_entries, rss_grp); + } + + return 0; +} + + static int flow_parse_meta_items(__rte_unused struct otx2_parse_state *pst) { @@ -445,7 +508,150 @@ err_exit: return NULL; } +static int +otx2_flow_destroy(struct rte_eth_dev *dev, + struct rte_flow *flow, + struct rte_flow_error *error) +{ + struct otx2_eth_dev *hw = dev->data->dev_private; + struct otx2_npc_flow_info *npc = &hw->npc_flow; + struct otx2_mbox *mbox = hw->mbox; + struct rte_bitmap *bmap; + uint16_t match_id; + int rc; + + match_id = (flow->npc_action >> NIX_RX_ACT_MATCH_OFFSET) & + NIX_RX_ACT_MATCH_MASK; + + if (match_id && match_id < OTX2_FLOW_ACTION_FLAG_DEFAULT) { + if (rte_atomic32_read(&npc->mark_actions) == 0) + return -EINVAL; + + /* Clear mark offload flag if there are no more mark actions */ + if (rte_atomic32_sub_return(&npc->mark_actions, 1) == 0) + hw->rx_offload_flags &= ~NIX_RX_OFFLOAD_MARK_UPDATE_F; + } + + rc = flow_free_rss_action(dev, flow); + if (rc != 0) { + rte_flow_error_set(error, EIO, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "Failed to free rss action"); + } + + rc = otx2_flow_mcam_free_entry(mbox, flow->mcam_id); + if (rc != 0) { + rte_flow_error_set(error, EIO, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "Failed to destroy filter"); + } + + TAILQ_REMOVE(&npc->flow_list[flow->priority], flow, next); + + bmap = npc->live_entries[flow->priority]; + rte_bitmap_clear(bmap, flow->mcam_id); + + rte_free(flow); + return 0; +} + +static int +otx2_flow_flush(struct rte_eth_dev *dev, + struct rte_flow_error *error) +{ + struct otx2_eth_dev *hw = dev->data->dev_private; + int rc; + + rc = otx2_flow_free_all_resources(hw); + if (rc) { + otx2_err("Error when deleting NPC MCAM entries " + ", counters"); + rte_flow_error_set(error, EIO, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "Failed to flush filter"); + return -rte_errno; + } + + return 0; +} + +static int +otx2_flow_isolate(struct rte_eth_dev *dev __rte_unused, + int enable __rte_unused, + struct rte_flow_error *error) +{ + /* + * If we support, we need to un-install the default mcam + * entry for this port. + */ + + rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "Flow isolation not supported"); + + return -rte_errno; +} + +static int +otx2_flow_query(struct rte_eth_dev *dev, + struct rte_flow *flow, + const struct rte_flow_action *action, + void *data, + struct rte_flow_error *error) +{ + struct otx2_eth_dev *hw = dev->data->dev_private; + struct rte_flow_query_count *query = data; + struct otx2_mbox *mbox = hw->mbox; + const char *errmsg = NULL; + int errcode = ENOTSUP; + int rc; + + if (action->type != RTE_FLOW_ACTION_TYPE_COUNT) { + errmsg = "Only COUNT is supported in query"; + goto err_exit; + } + + if (flow->ctr_id == NPC_COUNTER_NONE) { + errmsg = "Counter is not available"; + goto err_exit; + } + + rc = otx2_flow_mcam_read_counter(mbox, flow->ctr_id, &query->hits); + if (rc != 0) { + errcode = EIO; + errmsg = "Error reading flow counter"; + goto err_exit; + } + query->hits_set = 1; + query->bytes_set = 0; + + if (query->reset) + rc = otx2_flow_mcam_clear_counter(mbox, flow->ctr_id); + if (rc != 0) { + errcode = EIO; + errmsg = "Error clearing flow counter"; + goto err_exit; + } + + return 0; + +err_exit: + rte_flow_error_set(error, errcode, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + errmsg); + return -rte_errno; +} + const struct rte_flow_ops otx2_flow_ops = { .validate = otx2_flow_validate, .create = otx2_flow_create, + .destroy = otx2_flow_destroy, + .flush = otx2_flow_flush, + .query = otx2_flow_query, + .isolate = otx2_flow_isolate, }; diff --git a/drivers/net/octeontx2/otx2_rx.h b/drivers/net/octeontx2/otx2_rx.h index db79451b93..e18e046583 100644 --- a/drivers/net/octeontx2/otx2_rx.h +++ b/drivers/net/octeontx2/otx2_rx.h @@ -5,6 +5,9 @@ #ifndef __OTX2_RX_H__ #define __OTX2_RX_H__ +/* Default mark value used when none is provided. */ +#define OTX2_FLOW_ACTION_FLAG_DEFAULT 0xffff + #define PTYPE_WIDTH 12 #define PTYPE_NON_TUNNEL_ARRAY_SZ BIT(PTYPE_WIDTH) #define PTYPE_TUNNEL_ARRAY_SZ BIT(PTYPE_WIDTH) -- 2.20.1