[dpdk-dev] [PATCH v2 44/52] common/cnxk: add npc init and fini support

[Nithin Dabilpuram <ndabilpuram@marvell.com>]

From: Kiran Kumar K <kirankumark@marvell.com>

Adding support initialize and fini the npc. Further, adding APIs to
create and destroy the npc rules.

Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
---
 drivers/common/cnxk/meson.build |   1 +
 drivers/common/cnxk/roc_npc.c   | 713 ++++++++++++++++++++++++++++++++++++++++
 drivers/common/cnxk/roc_npc.h   |  40 +++
 drivers/common/cnxk/version.map |  16 +
 4 files changed, 770 insertions(+)
 create mode 100644 drivers/common/cnxk/roc_npc.c

diff --git a/drivers/common/cnxk/meson.build b/drivers/common/cnxk/meson.build
index defa703..adc9414 100644
--- a/drivers/common/cnxk/meson.build
+++ b/drivers/common/cnxk/meson.build
@@ -40,6 +40,7 @@ sources = files('roc_dev.c',
 		'roc_npa.c',
 		'roc_npa_debug.c',
 		'roc_npa_irq.c',
+		'roc_npc.c',
 		'roc_npc_mcam.c',
 		'roc_npc_parse.c',
 		'roc_npc_utils.c',
diff --git a/drivers/common/cnxk/roc_npc.c b/drivers/common/cnxk/roc_npc.c
new file mode 100644
index 0000000..c1ac3c7
--- /dev/null
+++ b/drivers/common/cnxk/roc_npc.c
@@ -0,0 +1,713 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell.
+ */
+
+#include "roc_api.h"
+#include "roc_priv.h"
+
+int
+roc_npc_mcam_free_counter(struct roc_npc *roc_npc, uint16_t ctr_id)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	return npc_mcam_free_counter(npc, ctr_id);
+}
+
+int
+roc_npc_mcam_read_counter(struct roc_npc *roc_npc, uint32_t ctr_id,
+			  uint64_t *count)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	return npc_mcam_read_counter(npc, ctr_id, count);
+}
+
+int
+roc_npc_mcam_clear_counter(struct roc_npc *roc_npc, uint32_t ctr_id)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	return npc_mcam_clear_counter(npc, ctr_id);
+}
+
+int
+roc_npc_mcam_free_entry(struct roc_npc *roc_npc, uint32_t entry)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	return npc_mcam_free_entry(npc, entry);
+}
+
+int
+roc_npc_mcam_free_all_resources(struct roc_npc *roc_npc)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	return npc_flow_free_all_resources(npc);
+}
+
+int
+roc_npc_mcam_alloc_entries(struct roc_npc *roc_npc, int ref_entry,
+			   int *alloc_entry, int req_count, int priority,
+			   int *resp_count)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	return npc_mcam_alloc_entries(npc, ref_entry, alloc_entry, req_count,
+				      priority, resp_count);
+}
+
+int
+roc_npc_mcam_alloc_entry(struct roc_npc *roc_npc, struct roc_npc_flow *mcam,
+			 struct roc_npc_flow *ref_mcam, int prio,
+			 int *resp_count)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	return npc_mcam_alloc_entry(npc, mcam, ref_mcam, prio, resp_count);
+}
+
+int
+roc_npc_mcam_ena_dis_entry(struct roc_npc *roc_npc, struct roc_npc_flow *mcam,
+			   bool enable)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	return npc_mcam_ena_dis_entry(npc, mcam, enable);
+}
+
+int
+roc_npc_mcam_write_entry(struct roc_npc *roc_npc, struct roc_npc_flow *mcam)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	return npc_mcam_write_entry(npc, mcam);
+}
+
+int
+roc_npc_get_low_priority_mcam(struct roc_npc *roc_npc)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	if (roc_model_is_cn10k())
+		return (npc->mcam_entries - NPC_MCAME_RESVD_10XX - 1);
+	else
+		return (npc->mcam_entries - NPC_MCAME_RESVD_9XXX - 1);
+}
+
+static int
+npc_mcam_tot_entries(void)
+{
+	/* FIXME: change to reading in AF from NPC_AF_CONST1/2
+	 * MCAM_BANK_DEPTH(_EXT) * MCAM_BANKS
+	 */
+	if (roc_model_is_cn10k())
+		return 16 * 1024; /* MCAM_BANKS = 4, BANK_DEPTH_EXT = 4096 */
+	else
+		return 4 * 1024; /* MCAM_BANKS = 4, BANK_DEPTH_EXT = 1024 */
+}
+
+const char *
+roc_npc_profile_name_get(struct roc_npc *roc_npc)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+
+	return (char *)npc->profile_name;
+}
+
+int
+roc_npc_init(struct roc_npc *roc_npc)
+{
+	uint8_t *mem = NULL, *nix_mem = NULL, *npc_mem = NULL;
+	struct nix *nix = roc_nix_to_nix_priv(roc_npc->roc_nix);
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+	uint32_t bmap_sz;
+	int rc = 0, idx;
+	size_t sz;
+
+	PLT_STATIC_ASSERT(sizeof(struct npc) <= ROC_NPC_MEM_SZ);
+
+	memset(npc, 0, sizeof(*npc));
+	npc->mbox = (&nix->dev)->mbox;
+	roc_npc->channel = nix->rx_chan_base;
+	roc_npc->pf_func = (&nix->dev)->pf_func;
+	npc->channel = roc_npc->channel;
+	npc->pf_func = roc_npc->pf_func;
+	npc->flow_max_priority = roc_npc->flow_max_priority;
+	npc->switch_header_type = roc_npc->switch_header_type;
+	npc->flow_prealloc_size = roc_npc->flow_prealloc_size;
+
+	if (npc->mbox == NULL)
+		return NPC_ERR_PARAM;
+
+	rc = npc_mcam_fetch_kex_cfg(npc);
+	if (rc)
+		goto done;
+
+	roc_npc->kex_capability = npc_get_kex_capability(npc);
+	roc_npc->rx_parse_nibble = npc->keyx_supp_nmask[NPC_MCAM_RX];
+
+	npc->mark_actions = 0;
+
+	npc->mcam_entries = npc_mcam_tot_entries() >> npc->keyw[NPC_MCAM_RX];
+
+	/* Free, free_rev, live and live_rev entries */
+	bmap_sz = plt_bitmap_get_memory_footprint(npc->mcam_entries);
+	mem = plt_zmalloc(4 * bmap_sz * npc->flow_max_priority, 0);
+	if (mem == NULL) {
+		plt_err("Bmap alloc failed");
+		rc = NPC_ERR_NO_MEM;
+		return rc;
+	}
+
+	sz = npc->flow_max_priority * sizeof(struct npc_mcam_ents_info);
+	npc->flow_entry_info = plt_zmalloc(sz, 0);
+	if (npc->flow_entry_info == NULL) {
+		plt_err("flow_entry_info alloc failed");
+		rc = NPC_ERR_NO_MEM;
+		goto done;
+	}
+
+	sz = npc->flow_max_priority * sizeof(struct plt_bitmap *);
+	npc->free_entries = plt_zmalloc(sz, 0);
+	if (npc->free_entries == NULL) {
+		plt_err("free_entries alloc failed");
+		rc = NPC_ERR_NO_MEM;
+		goto done;
+	}
+
+	sz = npc->flow_max_priority * sizeof(struct plt_bitmap *);
+	npc->free_entries_rev = plt_zmalloc(sz, 0);
+	if (npc->free_entries_rev == NULL) {
+		plt_err("free_entries_rev alloc failed");
+		rc = NPC_ERR_NO_MEM;
+		goto done;
+	}
+
+	sz = npc->flow_max_priority * sizeof(struct plt_bitmap *);
+	npc->live_entries = plt_zmalloc(sz, 0);
+	if (npc->live_entries == NULL) {
+		plt_err("live_entries alloc failed");
+		rc = NPC_ERR_NO_MEM;
+		goto done;
+	}
+
+	sz = npc->flow_max_priority * sizeof(struct plt_bitmap *);
+	npc->live_entries_rev = plt_zmalloc(sz, 0);
+	if (npc->live_entries_rev == NULL) {
+		plt_err("live_entries_rev alloc failed");
+		rc = NPC_ERR_NO_MEM;
+		goto done;
+	}
+
+	sz = npc->flow_max_priority * sizeof(struct npc_flow_list);
+	npc->flow_list = plt_zmalloc(sz, 0);
+	if (npc->flow_list == NULL) {
+		plt_err("flow_list alloc failed");
+		rc = NPC_ERR_NO_MEM;
+		goto done;
+	}
+
+	npc_mem = mem;
+	for (idx = 0; idx < npc->flow_max_priority; idx++) {
+		TAILQ_INIT(&npc->flow_list[idx]);
+
+		npc->free_entries[idx] =
+			plt_bitmap_init(npc->mcam_entries, mem, bmap_sz);
+		mem += bmap_sz;
+
+		npc->free_entries_rev[idx] =
+			plt_bitmap_init(npc->mcam_entries, mem, bmap_sz);
+		mem += bmap_sz;
+
+		npc->live_entries[idx] =
+			plt_bitmap_init(npc->mcam_entries, mem, bmap_sz);
+		mem += bmap_sz;
+
+		npc->live_entries_rev[idx] =
+			plt_bitmap_init(npc->mcam_entries, mem, bmap_sz);
+		mem += bmap_sz;
+
+		npc->flow_entry_info[idx].free_ent = 0;
+		npc->flow_entry_info[idx].live_ent = 0;
+		npc->flow_entry_info[idx].max_id = 0;
+		npc->flow_entry_info[idx].min_id = ~(0);
+	}
+
+	npc->rss_grps = NPC_RSS_GRPS;
+
+	bmap_sz = plt_bitmap_get_memory_footprint(npc->rss_grps);
+	nix_mem = plt_zmalloc(bmap_sz, 0);
+	if (nix_mem == NULL) {
+		plt_err("Bmap alloc failed");
+		rc = NPC_ERR_NO_MEM;
+		goto done;
+	}
+
+	npc->rss_grp_entries = plt_bitmap_init(npc->rss_grps, nix_mem, bmap_sz);
+
+	if (!npc->rss_grp_entries) {
+		plt_err("bitmap init failed");
+		rc = NPC_ERR_NO_MEM;
+		goto done;
+	}
+
+	/* Group 0 will be used for RSS,
+	 * 1 -7 will be used for npc_flow RSS action
+	 */
+	plt_bitmap_set(npc->rss_grp_entries, 0);
+
+	return rc;
+
+done:
+	if (npc->flow_list)
+		plt_free(npc->flow_list);
+	if (npc->live_entries_rev)
+		plt_free(npc->live_entries_rev);
+	if (npc->live_entries)
+		plt_free(npc->live_entries);
+	if (npc->free_entries_rev)
+		plt_free(npc->free_entries_rev);
+	if (npc->free_entries)
+		plt_free(npc->free_entries);
+	if (npc->flow_entry_info)
+		plt_free(npc->flow_entry_info);
+	if (npc_mem)
+		plt_free(npc_mem);
+	return rc;
+}
+
+int
+roc_npc_fini(struct roc_npc *roc_npc)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+	int rc;
+
+	rc = npc_flow_free_all_resources(npc);
+	if (rc) {
+		plt_err("Error when deleting NPC MCAM entries, counters");
+		return rc;
+	}
+
+	if (npc->flow_list) {
+		plt_free(npc->flow_list);
+		npc->flow_list = NULL;
+	}
+
+	if (npc->live_entries_rev) {
+		plt_free(npc->live_entries_rev);
+		npc->live_entries_rev = NULL;
+	}
+
+	if (npc->live_entries) {
+		plt_free(npc->live_entries);
+		npc->live_entries = NULL;
+	}
+
+	if (npc->free_entries_rev) {
+		plt_free(npc->free_entries_rev);
+		npc->free_entries_rev = NULL;
+	}
+
+	if (npc->free_entries) {
+		plt_free(npc->free_entries);
+		npc->free_entries = NULL;
+	}
+
+	if (npc->flow_entry_info) {
+		plt_free(npc->flow_entry_info);
+		npc->flow_entry_info = NULL;
+	}
+
+	return 0;
+}
+
+static int
+npc_parse_actions(struct npc *npc, const struct roc_npc_attr *attr,
+		  const struct roc_npc_action actions[],
+		  struct roc_npc_flow *flow)
+{
+	const struct roc_npc_action_mark *act_mark;
+	const struct roc_npc_action_queue *act_q;
+	const struct roc_npc_action_vf *vf_act;
+	int sel_act, req_act = 0;
+	uint16_t pf_func, vf_id;
+	int errcode = 0;
+	int mark = 0;
+	int rq = 0;
+
+	/* Initialize actions */
+	flow->ctr_id = NPC_COUNTER_NONE;
+	pf_func = npc->pf_func;
+
+	for (; actions->type != ROC_NPC_ACTION_TYPE_END; actions++) {
+		switch (actions->type) {
+		case ROC_NPC_ACTION_TYPE_VOID:
+			break;
+		case ROC_NPC_ACTION_TYPE_MARK:
+			act_mark = (const struct roc_npc_action_mark *)
+					   actions->conf;
+			if (act_mark->id > (NPC_FLOW_FLAG_VAL - 2)) {
+				plt_err("mark value must be < 0xfffe");
+				goto err_exit;
+			}
+			mark = act_mark->id + 1;
+			req_act |= ROC_NPC_ACTION_TYPE_MARK;
+			npc->mark_actions += 1;
+			break;
+
+		case ROC_NPC_ACTION_TYPE_FLAG:
+			mark = NPC_FLOW_FLAG_VAL;
+			req_act |= ROC_NPC_ACTION_TYPE_FLAG;
+			npc->mark_actions += 1;
+			break;
+
+		case ROC_NPC_ACTION_TYPE_COUNT:
+			/* Indicates, need a counter */
+			flow->ctr_id = 1;
+			req_act |= ROC_NPC_ACTION_TYPE_COUNT;
+			break;
+
+		case ROC_NPC_ACTION_TYPE_DROP:
+			req_act |= ROC_NPC_ACTION_TYPE_DROP;
+			break;
+
+		case ROC_NPC_ACTION_TYPE_PF:
+			req_act |= ROC_NPC_ACTION_TYPE_PF;
+			pf_func &= (0xfc00);
+			break;
+
+		case ROC_NPC_ACTION_TYPE_VF:
+			vf_act =
+				(const struct roc_npc_action_vf *)actions->conf;
+			req_act |= ROC_NPC_ACTION_TYPE_VF;
+			vf_id = vf_act->id & RVU_PFVF_FUNC_MASK;
+			pf_func &= (0xfc00);
+			pf_func = (pf_func | (vf_id + 1));
+			break;
+
+		case ROC_NPC_ACTION_TYPE_QUEUE:
+			act_q = (const struct roc_npc_action_queue *)
+					actions->conf;
+			rq = act_q->index;
+			req_act |= ROC_NPC_ACTION_TYPE_QUEUE;
+			break;
+
+		case ROC_NPC_ACTION_TYPE_RSS:
+			req_act |= ROC_NPC_ACTION_TYPE_RSS;
+			break;
+
+		case ROC_NPC_ACTION_TYPE_SEC:
+			/* Assumes user has already configured security
+			 * session for this flow. Associated conf is
+			 * opaque. When security is implemented,
+			 * we need to verify that for specified security
+			 * session:
+			 *  action_type ==
+			 *    NPC_SECURITY_ACTION_TYPE_INLINE_PROTOCOL &&
+			 *  session_protocol ==
+			 *    NPC_SECURITY_PROTOCOL_IPSEC
+			 *
+			 * RSS is not supported with inline ipsec. Get the
+			 * rq from associated conf, or make
+			 * ROC_NPC_ACTION_TYPE_QUEUE compulsory with this
+			 * action.
+			 * Currently, rq = 0 is assumed.
+			 */
+			req_act |= ROC_NPC_ACTION_TYPE_SEC;
+			rq = 0;
+			break;
+		default:
+			errcode = NPC_ERR_ACTION_NOTSUP;
+			goto err_exit;
+		}
+	}
+
+	/* Check if actions specified are compatible */
+	if (attr->egress) {
+		/* Only DROP/COUNT is supported */
+		if (!(req_act & ROC_NPC_ACTION_TYPE_DROP)) {
+			errcode = NPC_ERR_ACTION_NOTSUP;
+			goto err_exit;
+		} else if (req_act & ~(ROC_NPC_ACTION_TYPE_DROP |
+				       ROC_NPC_ACTION_TYPE_COUNT)) {
+			errcode = NPC_ERR_ACTION_NOTSUP;
+			goto err_exit;
+		}
+		flow->npc_action = NIX_TX_ACTIONOP_DROP;
+		goto set_pf_func;
+	}
+
+	/* We have already verified the attr, this is ingress.
+	 * - Exactly one terminating action is supported
+	 * - Exactly one of MARK or FLAG is supported
+	 * - If terminating action is DROP, only count is valid.
+	 */
+	sel_act = req_act & NPC_ACTION_TERM;
+	if ((sel_act & (sel_act - 1)) != 0) {
+		errcode = NPC_ERR_ACTION_NOTSUP;
+		goto err_exit;
+	}
+
+	if (req_act & ROC_NPC_ACTION_TYPE_DROP) {
+		sel_act = req_act & ~ROC_NPC_ACTION_TYPE_COUNT;
+		if ((sel_act & (sel_act - 1)) != 0) {
+			errcode = NPC_ERR_ACTION_NOTSUP;
+			goto err_exit;
+		}
+	}
+
+	if ((req_act & (ROC_NPC_ACTION_TYPE_FLAG | ROC_NPC_ACTION_TYPE_MARK)) ==
+	    (ROC_NPC_ACTION_TYPE_FLAG | ROC_NPC_ACTION_TYPE_MARK)) {
+		errcode = NPC_ERR_ACTION_NOTSUP;
+		goto err_exit;
+	}
+
+	/* Set NIX_RX_ACTIONOP */
+	if (req_act & (ROC_NPC_ACTION_TYPE_PF | ROC_NPC_ACTION_TYPE_VF)) {
+		flow->npc_action = NIX_RX_ACTIONOP_UCAST;
+		if (req_act & ROC_NPC_ACTION_TYPE_QUEUE)
+			flow->npc_action |= (uint64_t)rq << 20;
+	} else if (req_act & ROC_NPC_ACTION_TYPE_DROP) {
+		flow->npc_action = NIX_RX_ACTIONOP_DROP;
+	} else if (req_act & ROC_NPC_ACTION_TYPE_QUEUE) {
+		flow->npc_action = NIX_RX_ACTIONOP_UCAST;
+		flow->npc_action |= (uint64_t)rq << 20;
+	} else if (req_act & ROC_NPC_ACTION_TYPE_RSS) {
+		flow->npc_action = NIX_RX_ACTIONOP_UCAST;
+	} else if (req_act & ROC_NPC_ACTION_TYPE_SEC) {
+		flow->npc_action = NIX_RX_ACTIONOP_UCAST_IPSEC;
+		flow->npc_action |= (uint64_t)rq << 20;
+	} else if (req_act &
+		   (ROC_NPC_ACTION_TYPE_FLAG | ROC_NPC_ACTION_TYPE_MARK)) {
+		flow->npc_action = NIX_RX_ACTIONOP_UCAST;
+	} else if (req_act & ROC_NPC_ACTION_TYPE_COUNT) {
+		/* Keep ROC_NPC_ACTION_TYPE_COUNT_ACT always at the end
+		 * This is default action, when user specify only
+		 * COUNT ACTION
+		 */
+		flow->npc_action = NIX_RX_ACTIONOP_UCAST;
+	} else {
+		/* Should never reach here */
+		errcode = NPC_ERR_ACTION_NOTSUP;
+		goto err_exit;
+	}
+
+	if (mark)
+		flow->npc_action |= (uint64_t)mark << 40;
+
+set_pf_func:
+	/* Ideally AF must ensure that correct pf_func is set */
+	flow->npc_action |= (uint64_t)pf_func << 4;
+
+	return 0;
+
+err_exit:
+	return errcode;
+}
+
+typedef int (*npc_parse_stage_func_t)(struct npc_parse_state *pst);
+
+static int
+npc_parse_pattern(struct npc *npc, const struct roc_npc_item_info pattern[],
+		  struct roc_npc_flow *flow, struct npc_parse_state *pst)
+{
+	npc_parse_stage_func_t parse_stage_funcs[] = {
+		npc_parse_meta_items, npc_parse_cpt_hdr, npc_parse_higig2_hdr,
+		npc_parse_la,	      npc_parse_lb,	 npc_parse_lc,
+		npc_parse_ld,	      npc_parse_le,	 npc_parse_lf,
+		npc_parse_lg,	      npc_parse_lh,
+	};
+	uint8_t layer = 0;
+	int key_offset;
+	int rc;
+
+	if (pattern == NULL)
+		return NPC_ERR_PARAM;
+
+	memset(pst, 0, sizeof(*pst));
+	pst->npc = npc;
+	pst->flow = flow;
+
+	/* Use integral byte offset */
+	key_offset = pst->npc->keyx_len[flow->nix_intf];
+	key_offset = (key_offset + 7) / 8;
+
+	/* Location where LDATA would begin */
+	pst->mcam_data = (uint8_t *)flow->mcam_data;
+	pst->mcam_mask = (uint8_t *)flow->mcam_mask;
+
+	while (pattern->type != ROC_NPC_ITEM_TYPE_END &&
+	       layer < PLT_DIM(parse_stage_funcs)) {
+		/* Skip place-holders */
+		pattern = npc_parse_skip_void_and_any_items(pattern);
+
+		pst->pattern = pattern;
+		rc = parse_stage_funcs[layer](pst);
+		if (rc != 0)
+			return rc;
+
+		layer++;
+
+		/*
+		 * Parse stage function sets pst->pattern to
+		 * 1 past the last item it consumed.
+		 */
+		pattern = pst->pattern;
+
+		if (pst->terminate)
+			break;
+	}
+
+	/* Skip trailing place-holders */
+	pattern = npc_parse_skip_void_and_any_items(pattern);
+
+	/* Are there more items than what we can handle? */
+	if (pattern->type != ROC_NPC_ITEM_TYPE_END)
+		return NPC_ERR_PATTERN_NOTSUP;
+
+	return 0;
+}
+
+static int
+npc_parse_attr(struct npc *npc, const struct roc_npc_attr *attr,
+	       struct roc_npc_flow *flow)
+{
+	if (attr == NULL)
+		return NPC_ERR_PARAM;
+	else if (attr->priority >= npc->flow_max_priority)
+		return NPC_ERR_PARAM;
+	else if ((!attr->egress && !attr->ingress) ||
+		 (attr->egress && attr->ingress))
+		return NPC_ERR_PARAM;
+
+	if (attr->ingress)
+		flow->nix_intf = ROC_NPC_INTF_RX;
+	else
+		flow->nix_intf = ROC_NPC_INTF_TX;
+
+	flow->priority = attr->priority;
+	return 0;
+}
+
+static int
+npc_parse_rule(struct npc *npc, const struct roc_npc_attr *attr,
+	       const struct roc_npc_item_info pattern[],
+	       const struct roc_npc_action actions[], struct roc_npc_flow *flow,
+	       struct npc_parse_state *pst)
+{
+	int err;
+
+	/* Check attr */
+	err = npc_parse_attr(npc, attr, flow);
+	if (err)
+		return err;
+
+	/* Check pattern */
+	err = npc_parse_pattern(npc, pattern, flow, pst);
+	if (err)
+		return err;
+
+	/* Check action */
+	err = npc_parse_actions(npc, attr, actions, flow);
+	if (err)
+		return err;
+	return 0;
+}
+
+int
+roc_npc_flow_parse(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
+		   const struct roc_npc_item_info pattern[],
+		   const struct roc_npc_action actions[],
+		   struct roc_npc_flow *flow)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+	struct npc_parse_state parse_state = {0};
+	int rc;
+
+	rc = npc_parse_rule(npc, attr, pattern, actions, flow, &parse_state);
+	if (rc)
+		return rc;
+
+	parse_state.is_vf = !roc_nix_is_pf(roc_npc->roc_nix);
+
+	return npc_program_mcam(npc, &parse_state, 0);
+}
+
+struct roc_npc_flow *
+roc_npc_flow_create(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
+		    const struct roc_npc_item_info pattern[],
+		    const struct roc_npc_action actions[], int *errcode)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+	struct roc_npc_flow *flow, *flow_iter;
+	struct npc_parse_state parse_state;
+	struct npc_flow_list *list;
+	int rc;
+
+	flow = plt_zmalloc(sizeof(*flow), 0);
+	if (flow == NULL) {
+		*errcode = NPC_ERR_NO_MEM;
+		return NULL;
+	}
+	memset(flow, 0, sizeof(*flow));
+
+	rc = npc_parse_rule(npc, attr, pattern, actions, flow, &parse_state);
+	if (rc != 0) {
+		*errcode = rc;
+		goto err_exit;
+	}
+
+	parse_state.is_vf = !roc_nix_is_pf(roc_npc->roc_nix);
+
+	rc = npc_program_mcam(npc, &parse_state, 1);
+	if (rc != 0) {
+		*errcode = rc;
+		goto err_exit;
+	}
+
+	list = &npc->flow_list[flow->priority];
+	/* List in ascending order of mcam entries */
+	TAILQ_FOREACH(flow_iter, list, next) {
+		if (flow_iter->mcam_id > flow->mcam_id) {
+			TAILQ_INSERT_BEFORE(flow_iter, flow, next);
+			return flow;
+		}
+	}
+
+	TAILQ_INSERT_TAIL(list, flow, next);
+	return flow;
+
+err_exit:
+	plt_free(flow);
+	return NULL;
+}
+
+int
+roc_npc_flow_destroy(struct roc_npc *roc_npc, struct roc_npc_flow *flow)
+{
+	struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+	struct plt_bitmap *bmap;
+	uint16_t match_id;
+	int rc;
+
+	match_id = (flow->npc_action >> NPC_RX_ACT_MATCH_OFFSET) &
+		   NPC_RX_ACT_MATCH_MASK;
+
+	if (match_id && match_id < NPC_ACTION_FLAG_DEFAULT) {
+		if (npc->mark_actions == 0)
+			return NPC_ERR_PARAM;
+	}
+
+	rc = npc_mcam_free_entry(npc, flow->mcam_id);
+	if (rc != 0)
+		return rc;
+
+	TAILQ_REMOVE(&npc->flow_list[flow->priority], flow, next);
+
+	bmap = npc->live_entries[flow->priority];
+	plt_bitmap_clear(bmap, flow->mcam_id);
+
+	plt_free(flow);
+	return 0;
+}
diff --git a/drivers/common/cnxk/roc_npc.h b/drivers/common/cnxk/roc_npc.h
index c841240..996739e 100644
--- a/drivers/common/cnxk/roc_npc.h
+++ b/drivers/common/cnxk/roc_npc.h
@@ -126,4 +126,44 @@ struct roc_npc {
 	uint8_t reserved[ROC_NPC_MEM_SZ];
 } __plt_cache_aligned;
 
+int __roc_api roc_npc_init(struct roc_npc *roc_npc);
+int __roc_api roc_npc_fini(struct roc_npc *roc_npc);
+const char *__roc_api roc_npc_profile_name_get(struct roc_npc *roc_npc);
+
+struct roc_npc_flow *__roc_api
+roc_npc_flow_create(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
+		    const struct roc_npc_item_info pattern[],
+		    const struct roc_npc_action actions[], int *errcode);
+int __roc_api roc_npc_flow_destroy(struct roc_npc *roc_npc,
+				   struct roc_npc_flow *flow);
+int __roc_api roc_npc_mcam_free_entry(struct roc_npc *roc_npc, uint32_t entry);
+int __roc_api roc_npc_mcam_alloc_entry(struct roc_npc *roc_npc,
+				       struct roc_npc_flow *mcam,
+				       struct roc_npc_flow *ref_mcam, int prio,
+				       int *resp_count);
+int __roc_api roc_npc_mcam_alloc_entries(struct roc_npc *roc_npc, int ref_entry,
+					 int *alloc_entry, int req_count,
+					 int priority, int *resp_count);
+int __roc_api roc_npc_mcam_ena_dis_entry(struct roc_npc *roc_npc,
+					 struct roc_npc_flow *mcam,
+					 bool enable);
+int __roc_api roc_npc_mcam_write_entry(struct roc_npc *roc_npc,
+				       struct roc_npc_flow *mcam);
+int __roc_api roc_npc_flow_parse(struct roc_npc *roc_npc,
+				 const struct roc_npc_attr *attr,
+				 const struct roc_npc_item_info pattern[],
+				 const struct roc_npc_action actions[],
+				 struct roc_npc_flow *flow);
+int __roc_api roc_npc_get_low_priority_mcam(struct roc_npc *roc_npc);
+
+int __roc_api roc_npc_mcam_free_counter(struct roc_npc *roc_npc,
+					uint16_t ctr_id);
+
+int __roc_api roc_npc_mcam_read_counter(struct roc_npc *roc_npc,
+					uint32_t ctr_id, uint64_t *count);
+int __roc_api roc_npc_mcam_clear_counter(struct roc_npc *roc_npc,
+					 uint32_t ctr_id);
+
+int __roc_api roc_npc_mcam_free_all_resources(struct roc_npc *roc_npc);
+
 #endif /* _ROC_NPC_H_ */
diff --git a/drivers/common/cnxk/version.map b/drivers/common/cnxk/version.map
index 809cdae..3b9cf34 100644
--- a/drivers/common/cnxk/version.map
+++ b/drivers/common/cnxk/version.map
@@ -156,6 +156,22 @@ INTERNAL {
 	roc_npa_pool_destroy;
 	roc_npa_pool_op_pc_reset;
 	roc_npa_pool_range_update_check;
+	roc_npc_fini;
+	roc_npc_flow_create;
+	roc_npc_flow_destroy;
+	roc_npc_flow_parse;
+	roc_npc_get_low_priority_mcam;
+	roc_npc_init;
+	roc_npc_mcam_alloc_entries;
+	roc_npc_mcam_alloc_entry;
+	roc_npc_mcam_clear_counter;
+	roc_npc_mcam_ena_dis_entry;
+	roc_npc_mcam_free_all_resources;
+	roc_npc_mcam_free_counter;
+	roc_npc_mcam_free_entry;
+	roc_npc_mcam_write_entry;
+	roc_npc_mcam_read_counter;
+	roc_npc_profile_name_get;
 	roc_plt_init;
 
 	local: *;
-- 
2.8.4