octeontx2-af: Support for setting MAC address

Added a new mailbox message for a PF/VF to set/update
it's NIXLF's MAC address. Also updates unicast NPC
MCAM entry with this address as matching DMAC.
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -158,7 +158,8 @@ M(NIX_TXSCH_FREE,	0x8005, nix_txsch_free_req, msg_rsp)		\
 M(NIX_TXSCHQ_CFG,	0x8006, nix_txschq_config, msg_rsp)		\
 M(NIX_STATS_RST,	0x8007, msg_req, msg_rsp)			\
 M(NIX_VTAG_CFG,	0x8008, nix_vtag_config, msg_rsp)		\
-M(NIX_RSS_FLOWKEY_CFG,  0x8009, nix_rss_flowkey_cfg, msg_rsp)
+M(NIX_RSS_FLOWKEY_CFG,  0x8009, nix_rss_flowkey_cfg, msg_rsp)		\
+M(NIX_SET_MAC_ADDR,	0x800a, nix_set_mac_addr, msg_rsp)
 
 /* Messages initiated by AF (range 0xC00 - 0xDFF) */
 #define MBOX_UP_CGX_MESSAGES						\
@@ -507,4 +508,9 @@ struct nix_rss_flowkey_cfg {
 	u8	group;       /* RSS context or group */
 };
 
+struct nix_set_mac_addr {
+	struct mbox_msghdr hdr;
+	u8 mac_addr[ETH_ALEN]; /* MAC address to be set for this pcifunc */
+};
+
 #endif /* MBOX_H */

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

@@ -344,6 +344,9 @@ int rvu_mbox_handler_NIX_VTAG_CFG(struct rvu *rvu,
 int rvu_mbox_handler_NIX_RSS_FLOWKEY_CFG(struct rvu *rvu,
 					 struct nix_rss_flowkey_cfg *req,
 					 struct msg_rsp *rsp);
+int rvu_mbox_handler_NIX_SET_MAC_ADDR(struct rvu *rvu,
+				      struct nix_set_mac_addr *req,
+				      struct msg_rsp *rsp);
 
 /* NPC APIs */
 int rvu_npc_init(struct rvu *rvu);

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

@@ -1720,6 +1720,31 @@ static void nix_rx_flowkey_alg_cfg(struct rvu *rvu, int blkaddr)
 	}
 }
 
+int rvu_mbox_handler_NIX_SET_MAC_ADDR(struct rvu *rvu,
+				      struct nix_set_mac_addr *req,
+				      struct msg_rsp *rsp)
+{
+	struct rvu_hwinfo *hw = rvu->hw;
+	u16 pcifunc = req->hdr.pcifunc;
+	struct rvu_pfvf *pfvf;
+	int blkaddr, nixlf;
+
+	pfvf = rvu_get_pfvf(rvu, pcifunc);
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc);
+	if (!pfvf->nixlf || blkaddr < 0)
+		return NIX_AF_ERR_AF_LF_INVALID;
+
+	nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0);
+	if (nixlf < 0)
+		return NIX_AF_ERR_AF_LF_INVALID;
+
+	ether_addr_copy(pfvf->mac_addr, req->mac_addr);
+
+	rvu_npc_install_ucast_entry(rvu, pcifunc, nixlf,
+				    pfvf->rx_chan_base, req->mac_addr);
+	return 0;
+}
+
 static int nix_calibrate_x2p(struct rvu *rvu, int blkaddr)
 {
 	int idx, err;