1 files changed, 207 insertions, 0 deletions

diff --git a/sys/dev/vnic/thunder_bgx_fdt.c b/sys/dev/vnic/thunder_bgx_fdt.c
new file mode 100644
index 000000000000..1560262c8cc0
--- /dev/null
+++ b/sys/dev/vnic/thunder_bgx_fdt.c
@@ -0,0 +1,207 @@
+/*-
+ * Copyright (c) 2015 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Semihalf under
+ * the sponsorship of the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bitset.h>
+#include <sys/bitstring.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/module.h>
+#include <sys/rman.h>
+#include <sys/pciio.h>
+#include <sys/pcpu.h>
+#include <sys/proc.h>
+#include <sys/socket.h>
+#include <sys/cpuset.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <net/if_media.h>
+
+#include <dev/ofw/openfirm.h>
+#include <dev/mii/miivar.h>
+
+#include "thunder_bgx.h"
+#include "thunder_bgx_var.h"
+
+#define	CONN_TYPE_MAXLEN	16
+#define	CONN_TYPE_OFFSET	2
+
+int bgx_fdt_init_phy(struct bgx *);
+
+static void
+bgx_fdt_get_macaddr(phandle_t phy, uint8_t *hwaddr)
+{
+	uint8_t addr[ETHER_ADDR_LEN];
+
+	if (OF_getprop(phy, "local-mac-address", addr, ETHER_ADDR_LEN) == -1) {
+		/* Missing MAC address should be marked by clearing it */
+		memset(hwaddr, 0, ETHER_ADDR_LEN);
+	} else
+		memcpy(hwaddr, addr, ETHER_ADDR_LEN);
+}
+
+static boolean_t
+bgx_fdt_phy_mode_match(struct bgx *bgx, char *qlm_mode, size_t size)
+{
+
+	size -= CONN_TYPE_OFFSET;
+
+	switch (bgx->qlm_mode) {
+	case QLM_MODE_SGMII:
+		if (strncmp(&qlm_mode[CONN_TYPE_OFFSET], "sgmii", size) == 0)
+			return (TRUE);
+		break;
+	case QLM_MODE_XAUI_1X4:
+		if (strncmp(&qlm_mode[CONN_TYPE_OFFSET], "xaui", size) == 0)
+			return (TRUE);
+		if (strncmp(&qlm_mode[CONN_TYPE_OFFSET], "dxaui", size) == 0)
+			return (TRUE);
+		break;
+	case QLM_MODE_RXAUI_2X2:
+		if (strncmp(&qlm_mode[CONN_TYPE_OFFSET], "raui", size) == 0)
+			return (TRUE);
+		break;
+	case QLM_MODE_XFI_4X1:
+		if (strncmp(&qlm_mode[CONN_TYPE_OFFSET], "xfi", size) == 0)
+			return (TRUE);
+		break;
+	case QLM_MODE_XLAUI_1X4:
+		if (strncmp(&qlm_mode[CONN_TYPE_OFFSET], "xlaui", size) == 0)
+			return (TRUE);
+		break;
+	case QLM_MODE_10G_KR_4X1:
+		if (strncmp(&qlm_mode[CONN_TYPE_OFFSET], "xfi-10g-kr", size) == 0)
+			return (TRUE);
+		break;
+	case QLM_MODE_40G_KR4_1X4:
+		if (strncmp(&qlm_mode[CONN_TYPE_OFFSET], "xlaui-40g-kr", size) == 0)
+			return (TRUE);
+		break;
+	default:
+		return (FALSE);
+	}
+
+	return (FALSE);
+}
+
+int
+bgx_fdt_init_phy(struct bgx *bgx)
+{
+	phandle_t node, child;
+	phandle_t phy, mdio;
+	uint8_t lmac;
+	char bgx_sel[6];
+	char qlm_mode[CONN_TYPE_MAXLEN];
+	const char *mac;
+
+	(void)mac;
+
+	lmac = 0;
+	/* Get BGX node from DT */
+	snprintf(bgx_sel, 6, "/bgx%d", bgx->bgx_id);
+	node = OF_finddevice(bgx_sel);
+	if (node == 0 || node == -1) {
+		device_printf(bgx->dev,
+		    "Could not find %s node in FDT\n", bgx_sel);
+		return (ENXIO);
+	}
+
+	for (child = OF_child(node); child > 0; child = OF_peer(child)) {
+		if (OF_getprop(child, "qlm-mode", qlm_mode,
+		    sizeof(qlm_mode)) <= 0) {
+			/* Missing qlm-mode, skipping */
+			continue;
+		}
+
+		if (!bgx_fdt_phy_mode_match(bgx, qlm_mode, sizeof(qlm_mode))) {
+			/*
+			 * Connection type not match with BGX mode.
+			 */
+			continue;
+		}
+
+		if (OF_getencprop(child, "phy-handle", &phy,
+		    sizeof(phy)) <= 0) {
+			if (bootverbose) {
+				device_printf(bgx->dev,
+				    "No phy-handle in PHY node. Skipping...\n");
+			}
+			continue;
+		}
+
+		/* Acquire PHY address */
+		phy = OF_node_from_xref(phy);
+		if (OF_getencprop(phy, "reg", &bgx->lmac[lmac].phyaddr,
+		    sizeof(bgx->lmac[lmac].phyaddr)) <= 0) {
+			if (bootverbose) {
+				device_printf(bgx->dev,
+				    "Could not retrieve PHY address\n");
+			}
+			bgx->lmac[lmac].phyaddr = MII_PHY_ANY;
+		}
+
+		/*
+		 * Get PHY interface (MDIO bus) device.
+		 * Driver must be already attached.
+		 */
+		mdio = OF_parent(phy);
+		bgx->lmac[lmac].phy_if_dev =
+		    OF_device_from_xref(OF_xref_from_node(mdio));
+		if (bgx->lmac[lmac].phy_if_dev == NULL) {
+			if (bootverbose) {
+				device_printf(bgx->dev,
+				    "Could not find interface to PHY\n");
+			}
+			continue;
+		}
+
+		/* Get mac address from FDT */
+		bgx_fdt_get_macaddr(phy, bgx->lmac[lmac].mac);
+
+		bgx->lmac[lmac].lmacid = lmac;
+		lmac++;
+		if (lmac == MAX_LMAC_PER_BGX)
+			break;
+	}
+	if (lmac == 0) {
+		device_printf(bgx->dev, "Could not find matching PHY\n");
+		return (ENXIO);
+	}
+
+	return (0);
+}