1 files changed, 144 insertions, 42 deletions

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 42db213fb..00af8888e 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -499,29 +499,115 @@ static void nix_interface_deinit(struct rvu *rvu, u16 pcifunc, u8 nixlf)
 	rvu_cgx_disable_dmac_entries(rvu, pcifunc);
 }
 
+#define NIX_BPIDS_PER_LMAC	8
+#define NIX_BPIDS_PER_CPT	1
+static int nix_setup_bpids(struct rvu *rvu, struct nix_hw *hw, int blkaddr)
+{
+	struct nix_bp *bp = &hw->bp;
+	int err, max_bpids;
+	u64 cfg;
+
+	cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST1);
+	max_bpids =  FIELD_GET(NIX_CONST_MAX_BPIDS, cfg);
+
+	/* Reserve the BPIds for CGX and SDP */
+	bp->cgx_bpid_cnt = rvu->hw->cgx_links * NIX_BPIDS_PER_LMAC;
+	bp->sdp_bpid_cnt = rvu->hw->sdp_links * FIELD_GET(NIX_CONST_SDP_CHANS, cfg);
+	bp->free_pool_base = bp->cgx_bpid_cnt + bp->sdp_bpid_cnt +
+			     NIX_BPIDS_PER_CPT;
+	bp->bpids.max = max_bpids - bp->free_pool_base;
+
+	err = rvu_alloc_bitmap(&bp->bpids);
+	if (err)
+		return err;
+
+	bp->fn_map = devm_kcalloc(rvu->dev, bp->bpids.max,
+				  sizeof(u16), GFP_KERNEL);
+	if (!bp->fn_map)
+		return -ENOMEM;
+
+	bp->intf_map = devm_kcalloc(rvu->dev, bp->bpids.max,
+				    sizeof(u8), GFP_KERNEL);
+	if (!bp->intf_map)
+		return -ENOMEM;
+
+	bp->ref_cnt = devm_kcalloc(rvu->dev, bp->bpids.max,
+				   sizeof(u8), GFP_KERNEL);
+	if (!bp->ref_cnt)
+		return -ENOMEM;
+
+	return 0;
+}
+
+void rvu_nix_flr_free_bpids(struct rvu *rvu, u16 pcifunc)
+{
+	int blkaddr, bpid, err;
+	struct nix_hw *nix_hw;
+	struct nix_bp *bp;
+
+	if (!is_lbk_vf(rvu, pcifunc))
+		return;
+
+	err = nix_get_struct_ptrs(rvu, pcifunc, &nix_hw, &blkaddr);
+	if (err)
+		return;
+
+	bp = &nix_hw->bp;
+
+	mutex_lock(&rvu->rsrc_lock);
+	for (bpid = 0; bpid < bp->bpids.max; bpid++) {
+		if (bp->fn_map[bpid] == pcifunc) {
+			bp->ref_cnt[bpid]--;
+			if (bp->ref_cnt[bpid])
+				continue;
+			rvu_free_rsrc(&bp->bpids, bpid);
+			bp->fn_map[bpid] = 0;
+		}
+	}
+	mutex_unlock(&rvu->rsrc_lock);
+}
+
 int rvu_mbox_handler_nix_bp_disable(struct rvu *rvu,
 				    struct nix_bp_cfg_req *req,
 				    struct msg_rsp *rsp)
 {
 	u16 pcifunc = req->hdr.pcifunc;
+	int blkaddr, pf, type, err;
+	u16 chan_base, chan, bpid;
 	struct rvu_pfvf *pfvf;
-	int blkaddr, pf, type;
-	u16 chan_base, chan;
+	struct nix_hw *nix_hw;
+	struct nix_bp *bp;
 	u64 cfg;
 
 	pf = rvu_get_pf(pcifunc);
-	type = is_afvf(pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX;
+	type = is_lbk_vf(rvu, pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX;
 	if (!is_pf_cgxmapped(rvu, pf) && type != NIX_INTF_TYPE_LBK)
 		return 0;
 
 	pfvf = rvu_get_pfvf(rvu, pcifunc);
-	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc);
+	err = nix_get_struct_ptrs(rvu, pcifunc, &nix_hw, &blkaddr);
+	if (err)
+		return err;
 
+	bp = &nix_hw->bp;
 	chan_base = pfvf->rx_chan_base + req->chan_base;
 	for (chan = chan_base; chan < (chan_base + req->chan_cnt); chan++) {
 		cfg = rvu_read64(rvu, blkaddr, NIX_AF_RX_CHANX_CFG(chan));
 		rvu_write64(rvu, blkaddr, NIX_AF_RX_CHANX_CFG(chan),
 			    cfg & ~BIT_ULL(16));
+
+		if (type == NIX_INTF_TYPE_LBK) {
+			bpid = cfg & GENMASK(8, 0);
+			mutex_lock(&rvu->rsrc_lock);
+			rvu_free_rsrc(&bp->bpids, bpid - bp->free_pool_base);
+			for (bpid = 0; bpid < bp->bpids.max; bpid++) {
+				if (bp->fn_map[bpid] == pcifunc) {
+					bp->fn_map[bpid] = 0;
+					bp->ref_cnt[bpid] = 0;
+				}
+			}
+			mutex_unlock(&rvu->rsrc_lock);
+		}
 	}
 	return 0;
 }
@@ -529,25 +615,20 @@ int rvu_mbox_handler_nix_bp_disable(struct rvu *rvu,
 static int rvu_nix_get_bpid(struct rvu *rvu, struct nix_bp_cfg_req *req,
 			    int type, int chan_id)
 {
-	int bpid, blkaddr, lmac_chan_cnt, sdp_chan_cnt;
-	u16 cgx_bpid_cnt, lbk_bpid_cnt, sdp_bpid_cnt;
+	int bpid, blkaddr, sdp_chan_base, err;
 	struct rvu_hwinfo *hw = rvu->hw;
 	struct rvu_pfvf *pfvf;
+	struct nix_hw *nix_hw;
 	u8 cgx_id, lmac_id;
-	u64 cfg;
-
-	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, req->hdr.pcifunc);
-	cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST);
-	lmac_chan_cnt = cfg & 0xFF;
+	struct nix_bp *bp;
 
-	cgx_bpid_cnt = hw->cgx_links * lmac_chan_cnt;
-	lbk_bpid_cnt = hw->lbk_links * ((cfg >> 16) & 0xFF);
+	pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc);
 
-	cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST1);
-	sdp_chan_cnt = cfg & 0xFFF;
-	sdp_bpid_cnt = hw->sdp_links * sdp_chan_cnt;
+	err = nix_get_struct_ptrs(rvu, req->hdr.pcifunc, &nix_hw, &blkaddr);
+	if (err)
+		return err;
 
-	pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc);
+	bp = &nix_hw->bp;
 
 	/* Backpressure IDs range division
 	 * CGX channles are mapped to (0 - 191) BPIDs
@@ -561,38 +642,48 @@ static int rvu_nix_get_bpid(struct rvu *rvu, struct nix_bp_cfg_req *req,
 	 */
 	switch (type) {
 	case NIX_INTF_TYPE_CGX:
-		if ((req->chan_base + req->chan_cnt) > 16)
-			return -EINVAL;
+		if ((req->chan_base + req->chan_cnt) > NIX_BPIDS_PER_LMAC)
+			return NIX_AF_ERR_INVALID_BPID_REQ;
 		rvu_get_cgx_lmac_id(pfvf->cgx_lmac, &cgx_id, &lmac_id);
 		/* Assign bpid based on cgx, lmac and chan id */
-		bpid = (cgx_id * hw->lmac_per_cgx * lmac_chan_cnt) +
-			(lmac_id * lmac_chan_cnt) + req->chan_base;
+		bpid = (cgx_id * hw->lmac_per_cgx * NIX_BPIDS_PER_LMAC) +
+			(lmac_id * NIX_BPIDS_PER_LMAC) + req->chan_base;
 
 		if (req->bpid_per_chan)
 			bpid += chan_id;
-		if (bpid > cgx_bpid_cnt)
-			return -EINVAL;
+		if (bpid > bp->cgx_bpid_cnt)
+			return NIX_AF_ERR_INVALID_BPID;
 		break;
 
 	case NIX_INTF_TYPE_LBK:
-		if ((req->chan_base + req->chan_cnt) > 63)
-			return -EINVAL;
-		bpid = cgx_bpid_cnt + req->chan_base;
-		if (req->bpid_per_chan)
-			bpid += chan_id;
-		if (bpid > (cgx_bpid_cnt + lbk_bpid_cnt))
-			return -EINVAL;
+		/* Alloc bpid from the free pool */
+		mutex_lock(&rvu->rsrc_lock);
+		bpid = rvu_alloc_rsrc(&bp->bpids);
+		if (bpid < 0) {
+			mutex_unlock(&rvu->rsrc_lock);
+			return NIX_AF_ERR_INVALID_BPID;
+		}
+		bp->fn_map[bpid] = req->hdr.pcifunc;
+		bp->ref_cnt[bpid]++;
+		bpid += bp->free_pool_base;
+		mutex_unlock(&rvu->rsrc_lock);
 		break;
 	case NIX_INTF_TYPE_SDP:
-		if ((req->chan_base + req->chan_cnt) > 255)
-			return -EINVAL;
+		if ((req->chan_base + req->chan_cnt) > bp->sdp_bpid_cnt)
+			return NIX_AF_ERR_INVALID_BPID_REQ;
 
-		bpid = sdp_bpid_cnt + req->chan_base;
+		/* Handle usecase of 2 SDP blocks */
+		if (!hw->cap.programmable_chans)
+			sdp_chan_base = pfvf->rx_chan_base - NIX_CHAN_SDP_CH_START;
+		else
+			sdp_chan_base = pfvf->rx_chan_base - hw->sdp_chan_base;
+
+		bpid = bp->cgx_bpid_cnt + req->chan_base + sdp_chan_base;
 		if (req->bpid_per_chan)
 			bpid += chan_id;
 
-		if (bpid > (cgx_bpid_cnt + lbk_bpid_cnt + sdp_bpid_cnt))
-			return -EINVAL;
+		if (bpid > (bp->cgx_bpid_cnt + bp->sdp_bpid_cnt))
+			return NIX_AF_ERR_INVALID_BPID;
 		break;
 	default:
 		return -EINVAL;
@@ -612,7 +703,7 @@ int rvu_mbox_handler_nix_bp_enable(struct rvu *rvu,
 	u64 cfg;
 
 	pf = rvu_get_pf(pcifunc);
-	type = is_afvf(pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX;
+	type = is_lbk_vf(rvu, pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX;
 	if (is_sdp_pfvf(pcifunc))
 		type = NIX_INTF_TYPE_SDP;
 
@@ -1523,7 +1614,7 @@ int rvu_mbox_handler_nix_lf_alloc(struct rvu *rvu,
 	cfg = NPC_TX_DEF_PKIND;
 	rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_PARSE_CFG(nixlf), cfg);
 
-	intf = is_afvf(pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX;
+	intf = is_lbk_vf(rvu, pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX;
 	if (is_sdp_pfvf(pcifunc))
 		intf = NIX_INTF_TYPE_SDP;
 
@@ -1899,7 +1990,7 @@ static int nix_get_tx_link(struct rvu *rvu, u16 pcifunc)
 	int pf = rvu_get_pf(pcifunc);
 	u8 cgx_id = 0, lmac_id = 0;
 
-	if (is_afvf(pcifunc)) {/* LBK links */
+	if (is_lbk_vf(rvu, pcifunc)) {/* LBK links */
 		return hw->cgx_links;
 	} else if (is_pf_cgxmapped(rvu, pf)) {
 		rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
@@ -1916,7 +2007,7 @@ static void nix_get_txschq_range(struct rvu *rvu, u16 pcifunc,
 	struct rvu_hwinfo *hw = rvu->hw;
 	int pf = rvu_get_pf(pcifunc);
 
-	if (is_afvf(pcifunc)) { /* LBK links */
+	if (is_lbk_vf(rvu, pcifunc)) { /* LBK links */
 		*start = hw->cap.nix_txsch_per_cgx_lmac * link;
 		*end = *start + hw->cap.nix_txsch_per_lbk_lmac;
 	} else if (is_pf_cgxmapped(rvu, pf)) { /* CGX links */
@@ -3356,7 +3447,7 @@ static int nix_update_mce_rule(struct rvu *rvu, u16 pcifunc,
 	int pf;
 
 	/* skip multicast pkt replication for AF's VFs & SDP links */
-	if (is_afvf(pcifunc) || is_sdp_pfvf(pcifunc))
+	if (is_lbk_vf(rvu, pcifunc) || is_sdp_pfvf(pcifunc))
 		return 0;
 
 	if (!hw->cap.nix_rx_multicast)
@@ -3703,7 +3794,7 @@ int rvu_mbox_handler_nix_get_hw_info(struct rvu *rvu, struct msg_req *req,
 	if (blkaddr < 0)
 		return NIX_AF_ERR_AF_LF_INVALID;
 
-	if (is_afvf(pcifunc))
+	if (is_lbk_vf(rvu, pcifunc))
 		rvu_get_lbk_link_max_frs(rvu, &rsp->max_mtu);
 	else
 		rvu_get_lmac_link_max_frs(rvu, &rsp->max_mtu);
@@ -4039,6 +4130,13 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
 			field->ltype_match = NPC_LT_LE_GTPU;
 			field->ltype_mask = 0xF;
 			break;
+		case NIX_FLOW_KEY_TYPE_CUSTOM0:
+			field->lid = NPC_LID_LC;
+			field->hdr_offset = 6;
+			field->bytesm1 = 1; /* 2 Bytes*/
+			field->ltype_match = NPC_LT_LC_CUSTOM0;
+			field->ltype_mask = 0xF;
+			break;
 		case NIX_FLOW_KEY_TYPE_VLAN:
 			field->lid = NPC_LID_LB;
 			field->hdr_offset = 2; /* Skip TPID (2-bytes) */
@@ -4420,7 +4518,7 @@ int rvu_mbox_handler_nix_set_hw_frs(struct rvu *rvu, struct nix_frs_cfg *req,
 	if (!nix_hw)
 		return NIX_AF_ERR_INVALID_NIXBLK;
 
-	if (is_afvf(pcifunc))
+	if (is_lbk_vf(rvu, pcifunc))
 		rvu_get_lbk_link_max_frs(rvu, &max_mtu);
 	else
 		rvu_get_lmac_link_max_frs(rvu, &max_mtu);
@@ -4784,6 +4882,10 @@ static int rvu_nix_block_init(struct rvu *rvu, struct nix_hw *nix_hw)
 		if (err)
 			return err;
 
+		err = nix_setup_bpids(rvu, nix_hw, blkaddr);
+		if (err)
+			return err;
+
 		/* Configure segmentation offload formats */
 		nix_setup_lso(rvu, nix_hw, blkaddr);