10  * NPE			0 (NPE-A)	1 (NPE-B)	2 (NPE-C)
17  * bits 0 -> 1	- NPE ID (RX and TX-done)
37 #include <linux/soc/ixp4xx/npe.h>
103 #define CORE_MDC_EN		0x10 /* MDIO using NPE-B ETH-0 only */
112 /* NPE message codes */
170 	struct npe *npe;  member
184 /* NPE message structure */
882 	/* NPE firmware pads short frames with zeros internally */  in eth_xmit()
1166 	struct npe *npe = port->npe;  in eth_open()  local
1170 	if (!npe_running(npe)) {  in eth_open()
1171 		err = npe_load_firmware(npe, npe_name(npe), &dev->dev);  in eth_open()
1175 		if (npe_recv_message(npe, &msg, "ETH_GET_STATUS")) {  in eth_open()
1176 			netdev_err(dev, "%s not responding\n", npe_name(npe));  in eth_open()
1192 		if (npe_send_recv_message(port->npe, &msg, "ETH_SET_RXQ"))  in eth_open()
1204 	if (npe_send_recv_message(port->npe, &msg, "ETH_SET_MAC"))  in eth_open()
1210 	if (npe_send_recv_message(port->npe, &msg, "ETH_SET_FIREWALL_MODE"))  in eth_open()
1287 	if (npe_send_recv_message(port->npe, &msg, "ETH_ENABLE_LOOPBACK"))  in eth_close()
1313 			    " left in NPE\n", buffs);  in eth_close()
1333 			    "left in NPE\n", buffs);  in eth_close()
1340 	if (npe_send_recv_message(port->npe, &msg, "ETH_DISABLE_LOOPBACK"))  in eth_close()
1401 		 * On all except IXP43x, NPE-B is used for the MDIO bus.  in ixp4xx_eth_probe()
1402 		 * If there is no NPE-B in the feature set, bail out, else  in ixp4xx_eth_probe()
1409 			/* Else register the MDIO bus on NPE-B */  in ixp4xx_eth_probe()
1418 		 * IXP43x lacks NPE-B and uses NPE-C for the MDIO bus access,  in ixp4xx_eth_probe()
1419 		 * of there is no NPE-C, no bus, nothing works, so bail out.  in ixp4xx_eth_probe()
1425 			/* Else register the MDIO bus on NPE-C */  in ixp4xx_eth_probe()
1442 	if (!(port->npe = npe_request(NPE_ID(port->id))))  in ixp4xx_eth_probe()
1478 		    npe_name(port->npe));  in ixp4xx_eth_probe()
1488 	npe_release(port->npe);  in ixp4xx_eth_probe()
1502 	npe_release(port->npe);  in ixp4xx_eth_remove()