3 files changed, 228 insertions, 8 deletions

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 5a635828493b..f0b1a90317a6 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -153,6 +153,14 @@ M(NPC_MCAM_ALLOC_ENTRY,	0x6000, npc_mcam_alloc_entry, npc_mcam_alloc_entry_req,\
 				npc_mcam_alloc_entry_rsp)		\
 M(NPC_MCAM_FREE_ENTRY,	0x6001, npc_mcam_free_entry,			\
 				 npc_mcam_free_entry_req, msg_rsp)	\
+M(NPC_MCAM_WRITE_ENTRY,	0x6002, npc_mcam_write_entry,			\
+				 npc_mcam_write_entry_req, msg_rsp)	\
+M(NPC_MCAM_ENA_ENTRY,   0x6003, npc_mcam_ena_entry,			\
+				 npc_mcam_ena_dis_entry_req, msg_rsp)	\
+M(NPC_MCAM_DIS_ENTRY,   0x6004, npc_mcam_dis_entry,			\
+				 npc_mcam_ena_dis_entry_req, msg_rsp)	\
+M(NPC_MCAM_SHIFT_ENTRY, 0x6005, npc_mcam_shift_entry, npc_mcam_shift_entry_req,\
+				npc_mcam_shift_entry_rsp)		\
 /* NIX mbox IDs (range 0x8000 - 0xFFFF) */				\
 M(NIX_LF_ALLOC,		0x8000, nix_lf_alloc,				\
 				 nix_lf_alloc_req, nix_lf_alloc_rsp)	\
@@ -590,4 +598,41 @@ struct npc_mcam_free_entry_req {
 	u8  all;   /* If all entries allocated to this PFVF to be freed */
 };
 
+struct mcam_entry {
+#define NPC_MAX_KWS_IN_KEY	7 /* Number of keywords in max keywidth */
+	u64	kw[NPC_MAX_KWS_IN_KEY];
+	u64	kw_mask[NPC_MAX_KWS_IN_KEY];
+	u64	action;
+	u64	vtag_action;
+};
+
+struct npc_mcam_write_entry_req {
+	struct mbox_msghdr hdr;
+	struct mcam_entry entry_data;
+	u16 entry;	 /* MCAM entry to write this match key */
+	u16 cntr;	 /* Counter for this MCAM entry */
+	u8  intf;	 /* Rx or Tx interface */
+	u8  enable_entry;/* Enable this MCAM entry ? */
+	u8  set_cntr;    /* Set counter for this entry ? */
+};
+
+/* Enable/Disable a given entry */
+struct npc_mcam_ena_dis_entry_req {
+	struct mbox_msghdr hdr;
+	u16 entry;
+};
+
+struct npc_mcam_shift_entry_req {
+	struct mbox_msghdr hdr;
+#define NPC_MCAM_MAX_SHIFTS	64
+	u16 curr_entry[NPC_MCAM_MAX_SHIFTS];
+	u16 new_entry[NPC_MCAM_MAX_SHIFTS];
+	u16 shift_count; /* Number of entries to shift */
+};
+
+struct npc_mcam_shift_entry_rsp {
+	struct mbox_msghdr hdr;
+	u16 failed_entry_idx; /* Index in 'curr_entry', not entry itself */
+};
+
 #endif /* MBOX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 541c05cc8cc3..cfe49541b6e2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -386,4 +386,16 @@ int rvu_mbox_handler_npc_mcam_alloc_entry(struct rvu *rvu,
 int rvu_mbox_handler_npc_mcam_free_entry(struct rvu *rvu,
 					 struct npc_mcam_free_entry_req *req,
 					 struct msg_rsp *rsp);
+int rvu_mbox_handler_npc_mcam_write_entry(struct rvu *rvu,
+					  struct npc_mcam_write_entry_req *req,
+					  struct msg_rsp *rsp);
+int rvu_mbox_handler_npc_mcam_ena_entry(struct rvu *rvu,
+					struct npc_mcam_ena_dis_entry_req *req,
+					struct msg_rsp *rsp);
+int rvu_mbox_handler_npc_mcam_dis_entry(struct rvu *rvu,
+					struct npc_mcam_ena_dis_entry_req *req,
+					struct msg_rsp *rsp);
+int rvu_mbox_handler_npc_mcam_shift_entry(struct rvu *rvu,
+					  struct npc_mcam_shift_entry_req *req,
+					  struct npc_mcam_shift_entry_rsp *rsp);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
index 4176aed3fd19..801c37a9a46d 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
@@ -29,14 +29,6 @@
 static void npc_mcam_free_all_entries(struct rvu *rvu, struct npc_mcam *mcam,
 				      int blkaddr, u16 pcifunc);
 
-struct mcam_entry {
-#define NPC_MAX_KWS_IN_KEY	7 /* Number of keywords in max keywidth */
-	u64	kw[NPC_MAX_KWS_IN_KEY];
-	u64	kw_mask[NPC_MAX_KWS_IN_KEY];
-	u64	action;
-	u64	vtag_action;
-};
-
 void rvu_npc_set_pkind(struct rvu *rvu, int pkind, struct rvu_pfvf *pfvf)
 {
 	int blkaddr;
@@ -259,6 +251,46 @@ static void npc_config_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam,
 		npc_enable_mcam_entry(rvu, mcam, blkaddr, actindex, false);
 }
 
+static void npc_copy_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam,
+				int blkaddr, u16 src, u16 dest)
+{
+	int dbank = npc_get_bank(mcam, dest);
+	int sbank = npc_get_bank(mcam, src);
+	u64 cfg, sreg, dreg;
+	int bank, i;
+
+	src &= (mcam->banksize - 1);
+	dest &= (mcam->banksize - 1);
+
+	/* Copy INTF's, W0's, W1's CAM0 and CAM1 configuration */
+	for (bank = 0; bank < mcam->banks_per_entry; bank++) {
+		sreg = NPC_AF_MCAMEX_BANKX_CAMX_INTF(src, sbank + bank, 0);
+		dreg = NPC_AF_MCAMEX_BANKX_CAMX_INTF(dest, dbank + bank, 0);
+		for (i = 0; i < 6; i++) {
+			cfg = rvu_read64(rvu, blkaddr, sreg + (i * 8));
+			rvu_write64(rvu, blkaddr, dreg + (i * 8), cfg);
+		}
+	}
+
+	/* Copy action */
+	cfg = rvu_read64(rvu, blkaddr,
+			 NPC_AF_MCAMEX_BANKX_ACTION(src, sbank));
+	rvu_write64(rvu, blkaddr,
+		    NPC_AF_MCAMEX_BANKX_ACTION(dest, dbank), cfg);
+
+	/* Copy TAG action */
+	cfg = rvu_read64(rvu, blkaddr,
+			 NPC_AF_MCAMEX_BANKX_TAG_ACT(src, sbank));
+	rvu_write64(rvu, blkaddr,
+		    NPC_AF_MCAMEX_BANKX_TAG_ACT(dest, dbank), cfg);
+
+	/* Enable or disable */
+	cfg = rvu_read64(rvu, blkaddr,
+			 NPC_AF_MCAMEX_BANKX_CFG(src, sbank));
+	rvu_write64(rvu, blkaddr,
+		    NPC_AF_MCAMEX_BANKX_CFG(dest, dbank), cfg);
+}
+
 static u64 npc_get_mcam_action(struct rvu *rvu, struct npc_mcam *mcam,
 			       int blkaddr, int index)
 {
@@ -1322,3 +1354,134 @@ exit:
 	mutex_unlock(&mcam->lock);
 	return rc;
 }
+
+int rvu_mbox_handler_npc_mcam_write_entry(struct rvu *rvu,
+					  struct npc_mcam_write_entry_req *req,
+					  struct msg_rsp *rsp)
+{
+	struct npc_mcam *mcam = &rvu->hw->mcam;
+	u16 pcifunc = req->hdr.pcifunc;
+	int blkaddr, rc;
+
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0);
+	if (blkaddr < 0)
+		return NPC_MCAM_INVALID_REQ;
+
+	mutex_lock(&mcam->lock);
+	rc = npc_mcam_verify_entry(mcam, pcifunc, req->entry);
+	if (rc)
+		goto exit;
+
+	if (req->intf != NIX_INTF_RX && req->intf != NIX_INTF_TX) {
+		rc = NPC_MCAM_INVALID_REQ;
+		goto exit;
+	}
+
+	npc_config_mcam_entry(rvu, mcam, blkaddr, req->entry, req->intf,
+			      &req->entry_data, req->enable_entry);
+
+	rc = 0;
+exit:
+	mutex_unlock(&mcam->lock);
+	return rc;
+}
+
+int rvu_mbox_handler_npc_mcam_ena_entry(struct rvu *rvu,
+					struct npc_mcam_ena_dis_entry_req *req,
+					struct msg_rsp *rsp)
+{
+	struct npc_mcam *mcam = &rvu->hw->mcam;
+	u16 pcifunc = req->hdr.pcifunc;
+	int blkaddr, rc;
+
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0);
+	if (blkaddr < 0)
+		return NPC_MCAM_INVALID_REQ;
+
+	mutex_lock(&mcam->lock);
+	rc = npc_mcam_verify_entry(mcam, pcifunc, req->entry);
+	mutex_unlock(&mcam->lock);
+	if (rc)
+		return rc;
+
+	npc_enable_mcam_entry(rvu, mcam, blkaddr, req->entry, true);
+
+	return 0;
+}
+
+int rvu_mbox_handler_npc_mcam_dis_entry(struct rvu *rvu,
+					struct npc_mcam_ena_dis_entry_req *req,
+					struct msg_rsp *rsp)
+{
+	struct npc_mcam *mcam = &rvu->hw->mcam;
+	u16 pcifunc = req->hdr.pcifunc;
+	int blkaddr, rc;
+
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0);
+	if (blkaddr < 0)
+		return NPC_MCAM_INVALID_REQ;
+
+	mutex_lock(&mcam->lock);
+	rc = npc_mcam_verify_entry(mcam, pcifunc, req->entry);
+	mutex_unlock(&mcam->lock);
+	if (rc)
+		return rc;
+
+	npc_enable_mcam_entry(rvu, mcam, blkaddr, req->entry, false);
+
+	return 0;
+}
+
+int rvu_mbox_handler_npc_mcam_shift_entry(struct rvu *rvu,
+					  struct npc_mcam_shift_entry_req *req,
+					  struct npc_mcam_shift_entry_rsp *rsp)
+{
+	struct npc_mcam *mcam = &rvu->hw->mcam;
+	u16 pcifunc = req->hdr.pcifunc;
+	u16 old_entry, new_entry;
+	int blkaddr, rc;
+	u16 index;
+
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0);
+	if (blkaddr < 0)
+		return NPC_MCAM_INVALID_REQ;
+
+	if (req->shift_count > NPC_MCAM_MAX_SHIFTS)
+		return NPC_MCAM_INVALID_REQ;
+
+	mutex_lock(&mcam->lock);
+	for (index = 0; index < req->shift_count; index++) {
+		old_entry = req->curr_entry[index];
+		new_entry = req->new_entry[index];
+
+		/* Check if both old and new entries are valid and
+		 * does belong to this PFFUNC or not.
+		 */
+		rc = npc_mcam_verify_entry(mcam, pcifunc, old_entry);
+		if (rc)
+			break;
+
+		rc = npc_mcam_verify_entry(mcam, pcifunc, new_entry);
+		if (rc)
+			break;
+
+		/* Disable the new_entry */
+		npc_enable_mcam_entry(rvu, mcam, blkaddr, new_entry, false);
+
+		/* Copy rule from old entry to new entry */
+		npc_copy_mcam_entry(rvu, mcam, blkaddr, old_entry, new_entry);
+
+		/* Enable new_entry and disable old_entry */
+		npc_enable_mcam_entry(rvu, mcam, blkaddr, new_entry, true);
+		npc_enable_mcam_entry(rvu, mcam, blkaddr, old_entry, false);
+	}
+
+	/* If shift has failed then report the failed index */
+	if (index != req->shift_count) {
+		rc = NPC_MCAM_PERM_DENIED;
+		rsp->failed_entry_idx = index;
+	}
+
+	mutex_unlock(&mcam->lock);
+	return rc;
+}