octeontx2-af: Add LMAC channel info to NIXLF_ALLOC response

Add LMAC channel info like Rx/Tx channel base and count to
NIXLF_ALLOC mailbox message response. This info is used by
NIXLF attached RVU PF/VF to configure SQ's default channel,
TL3_TL2_LINKX_CFG and to install MCAM rules in NPC based
on matching ingress channel number.
Signed-off-by: Stanislaw Kardach <skardach@marvell.com>
Signed-off-by: Tomasz Duszynski <tduszynski@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/octeontx2/af/common.h

@@ -169,6 +169,7 @@ enum nix_scheduler {
 
 #define MAX_LMAC_PKIND			12
 #define NIX_LINK_CGX_LMAC(a, b)		(0 + 4 * (a) + (b))
+#define NIX_CHAN_CGX_LMAC_CHX(a, b, c)	(0x800 + 0x100 * (a) + 0x10 * (b) + (c))
 
 /* NIX LSO format indices.
  * As of now TSO is the only one using, so statically assigning indices.

drivers/net/ethernet/marvell/octeontx2/af/mbox.h

@@ -382,6 +382,10 @@ struct nix_lf_alloc_req {
 struct nix_lf_alloc_rsp {
 	struct mbox_msghdr hdr;
 	u16	sqb_size;
+	u16	rx_chan_base;
+	u16	tx_chan_base;
+	u8      rx_chan_cnt; /* total number of RX channels */
+	u8      tx_chan_cnt; /* total number of TX channels */
 	u8	lso_tsov4_idx;
 	u8	lso_tsov6_idx;
 	u8      mac_addr[ETH_ALEN];

drivers/net/ethernet/marvell/octeontx2/af/rvu.h

@@ -118,6 +118,11 @@ struct rvu_pfvf {
 	unsigned long	*rq_bmap;
 	unsigned long	*cq_bmap;
 
+	u16		rx_chan_base;
+	u16		tx_chan_base;
+	u8              rx_chan_cnt; /* total number of RX channels */
+	u8              tx_chan_cnt; /* total number of TX channels */
+
 	u8		mac_addr[ETH_ALEN]; /* MAC address of this PF/VF */
 
 	/* Broadcast pkt replication info */

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

@@ -140,6 +140,10 @@ static int nix_interface_init(struct rvu *rvu, u16 pcifunc, int type, int nixlf)
 				"PF_Func 0x%x: Invalid pkind\n", pcifunc);
 			return -EINVAL;
 		}
+		pfvf->rx_chan_base = NIX_CHAN_CGX_LMAC_CHX(cgx_id, lmac_id, 0);
+		pfvf->tx_chan_base = pfvf->rx_chan_base;
+		pfvf->rx_chan_cnt = 1;
+		pfvf->tx_chan_cnt = 1;
 		cgx_set_pkind(rvu_cgx_pdata(cgx_id, rvu), lmac_id, pkind);
 		rvu_npc_set_pkind(rvu, pkind, pfvf);
 		break;
@@ -799,6 +803,10 @@ int rvu_mbox_handler_NIX_LF_ALLOC(struct rvu *rvu,
 	/* set SQB size info */
 	cfg = rvu_read64(rvu, blkaddr, NIX_AF_SQ_CONST);
 	rsp->sqb_size = (cfg >> 34) & 0xFFFF;
+	rsp->rx_chan_base = pfvf->rx_chan_base;
+	rsp->tx_chan_base = pfvf->tx_chan_base;
+	rsp->rx_chan_cnt = pfvf->rx_chan_cnt;
+	rsp->tx_chan_cnt = pfvf->tx_chan_cnt;
 	rsp->lso_tsov4_idx = NIX_LSO_FORMAT_IDX_TSOV4;
 	rsp->lso_tsov6_idx = NIX_LSO_FORMAT_IDX_TSOV6;
 	return rc;