10  * NPE			0 (NPE-A)	1 (NPE-B)	2 (NPE-C)
17  * bits 0 -> 1	- NPE ID (RX and TX-done)
39 #include <linux/soc/ixp4xx/npe.h>
119 #define CORE_MDC_EN		0x10 /* MDIO using NPE-B ETH-0 only */
128 /* NPE message codes */
169 	u8 npe;		/* NPE instance used by this interface */  member
196 	struct npe *npe;  member
210 /* NPE message structure */
911 	/* NPE firmware pads short frames with zeros internally */  in eth_xmit()
1194 	struct npe *npe = port->npe;  in ixp4xx_do_change_mtu()  local
1213 	if (npe_send_recv_message(npe, &msg, "ETH_SET_MAX_FRAME_LENGTH"))  in ixp4xx_do_change_mtu()
1215 	netdev_dbg(dev, "set MTU on NPE %s to %d bytes\n",  in ixp4xx_do_change_mtu()
1216 		   npe_name(npe), new_mtu);  in ixp4xx_do_change_mtu()
1242 	struct npe *npe = port->npe;  in eth_open()  local
1246 	if (!npe_running(npe)) {  in eth_open()
1247 		err = npe_load_firmware(npe, npe_name(npe), &dev->dev);  in eth_open()
1251 		if (npe_recv_message(npe, &msg, "ETH_GET_STATUS")) {  in eth_open()
1252 			netdev_err(dev, "%s not responding\n", npe_name(npe));  in eth_open()
1268 		if (npe_send_recv_message(port->npe, &msg, "ETH_SET_RXQ"))  in eth_open()
1280 	if (npe_send_recv_message(port->npe, &msg, "ETH_SET_MAC"))  in eth_open()
1286 	if (npe_send_recv_message(port->npe, &msg, "ETH_SET_FIREWALL_MODE"))  in eth_open()
1365 	if (npe_send_recv_message(port->npe, &msg, "ETH_ENABLE_LOOPBACK"))  in eth_close()
1391 			    " left in NPE\n", buffs);  in eth_close()
1411 			    "left in NPE\n", buffs);  in eth_close()
1418 	if (npe_send_recv_message(port->npe, &msg, "ETH_DISABLE_LOOPBACK"))  in eth_close()
1455 	ret = of_parse_phandle_with_fixed_args(np, "intel,npe-handle", 1, 0,  in ixp4xx_of_get_platdata()
1458 		dev_err(dev, "no NPE engine specified\n");  in ixp4xx_of_get_platdata()
1461 	/* NPE ID 0x00, 0x10, 0x20... */  in ixp4xx_of_get_platdata()
1462 	plat->npe = (npe_spec.args[0] << 4);  in ixp4xx_of_get_platdata()
1519 	port->id = plat->npe;  in ixp4xx_eth_probe()
1553 	if (!(port->npe = npe_request(NPE_ID(port->id))))  in ixp4xx_eth_probe()
1584 		    npe_name(port->npe));  in ixp4xx_eth_probe()
1592 	npe_release(port->npe);  in ixp4xx_eth_probe()
1606 	npe_release(port->npe);  in ixp4xx_eth_remove()