/*
 * Copyright (c) 2004-2009 Voltaire Inc.  All rights reserved.
 * Copyright (c) 2011 Mellanox Technologies LTD.  All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - 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.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <netinet/in.h>

#define __STDC_FORMAT_MACROS
#include <inttypes.h>

#include <infiniband/umad.h>
#include <infiniband/mad.h>
#include <util/node_name_map.h>

#include "ibdiag_common.h"

static struct ibmad_port *srcport;

static op_fn_t node_desc, node_info, port_info, switch_info, pkey_table,
    sl2vl_table, vlarb_table, guid_info, mlnx_ext_port_info, port_info_extended;

static const match_rec_t match_tbl[] = {
	{"NodeInfo", "NI", node_info, 0, ""},
	{"NodeDesc", "ND", node_desc, 0, ""},
	{"PortInfo", "PI", port_info, 1, ""},
	{"PortInfoExtended", "PIE", port_info_extended, 1, ""},
	{"SwitchInfo", "SI", switch_info, 0, ""},
	{"PKeyTable", "PKeys", pkey_table, 1, ""},
	{"SL2VLTable", "SL2VL", sl2vl_table, 1, ""},
	{"VLArbitration", "VLArb", vlarb_table, 1, ""},
	{"GUIDInfo", "GI", guid_info, 0, ""},
	{"MlnxExtPortInfo", "MEPI", mlnx_ext_port_info, 1, ""},
	{}
};

static char *node_name_map_file = NULL;
static nn_map_t *node_name_map = NULL;
static int extended_speeds = 0;

/*******************************************/
static const char *node_desc(ib_portid_t *dest, char **argv, int argc)
{
	int node_type, l;
	uint64_t node_guid;
	char nd[IB_SMP_DATA_SIZE] = { 0 };
	uint8_t data[IB_SMP_DATA_SIZE] = { 0 };
	char dots[128];
	char *nodename = NULL;

	if (!smp_query_via(data, dest, IB_ATTR_NODE_INFO, 0, 0, srcport))
		return "node info query failed";

	mad_decode_field(data, IB_NODE_TYPE_F, &node_type);
	mad_decode_field(data, IB_NODE_GUID_F, &node_guid);

	if (!smp_query_via(nd, dest, IB_ATTR_NODE_DESC, 0, 0, srcport))
		return "node desc query failed";

	nodename = remap_node_name(node_name_map, node_guid, nd);

	l = strlen(nodename);
	if (l < 32) {
		memset(dots, '.', 32 - l);
		dots[32 - l] = '\0';
	} else {
		dots[0] = '.';
		dots[1] = '\0';
	}

	printf("Node Description:%s%s\n", dots, nodename);
	free(nodename);
	return NULL;
}

static const char *node_info(ib_portid_t * dest, char **argv, int argc)
{
	char buf[2048];
	char data[IB_SMP_DATA_SIZE] = { 0 };

	if (!smp_query_via(data, dest, IB_ATTR_NODE_INFO, 0, 0, srcport))
		return "node info query failed";

	mad_dump_nodeinfo(buf, sizeof buf, data, sizeof data);

	printf("# Node info: %s\n%s", portid2str(dest), buf);
	return NULL;
}

static const char *port_info_extended(ib_portid_t *dest, char **argv, int argc)
{
	char buf[2048];
	uint8_t data[IB_SMP_DATA_SIZE] = { 0 };
	int portnum = 0;

	if (argc > 0)
		portnum = strtol(argv[0], NULL, 0);

	if (!is_port_info_extended_supported(dest, portnum, srcport))
		return "port info extended not supported";

	if (!smp_query_via(data, dest, IB_ATTR_PORT_INFO_EXT, portnum, 0,
			   srcport))
		return "port info extended query failed";

	mad_dump_portinfo_ext(buf, sizeof buf, data, sizeof data);
	printf("# Port info Extended: %s port %d\n%s", portid2str(dest),
	       portnum, buf);
	return NULL;
}

static const char *port_info(ib_portid_t *dest, char **argv, int argc)
{
	char data[IB_SMP_DATA_SIZE] = { 0 };
	int portnum = 0, orig_portnum;

	if (argc > 0)
		portnum = strtol(argv[0], NULL, 0);
	orig_portnum = portnum;
	if (extended_speeds)
		portnum |= 1 << 31;

	if (!smp_query_via(data, dest, IB_ATTR_PORT_INFO, portnum, 0, srcport))
		return "port info query failed";

	printf("# Port info: %s port %d\n", portid2str(dest), orig_portnum);
	dump_portinfo(data, 0);
	return NULL;
}

static const char *mlnx_ext_port_info(ib_portid_t *dest, char **argv, int argc)
{
	char buf[2300];
	char data[IB_SMP_DATA_SIZE];
	int portnum = 0;

	if (argc > 0)
		portnum = strtol(argv[0], NULL, 0);

	if (!smp_query_via(data, dest, IB_ATTR_MLNX_EXT_PORT_INFO, portnum, 0, srcport))
		return "Mellanox ext port info query failed";

	mad_dump_mlnx_ext_port_info(buf, sizeof buf, data, sizeof data);

	printf("# MLNX ext Port info: %s port %d\n%s", portid2str(dest), portnum, buf);
	return NULL;
}

static const char *switch_info(ib_portid_t *dest, char **argv, int argc)
{
	char buf[2048];
	char data[IB_SMP_DATA_SIZE] = { 0 };

	if (!smp_query_via(data, dest, IB_ATTR_SWITCH_INFO, 0, 0, srcport))
		return "switch info query failed";

	mad_dump_switchinfo(buf, sizeof buf, data, sizeof data);

	printf("# Switch info: %s\n%s", portid2str(dest), buf);
	return NULL;
}

static const char *pkey_table(ib_portid_t *dest, char **argv, int argc)
{
	uint8_t data[IB_SMP_DATA_SIZE] = { 0 };
	int i, j, k;
	__be16 *p;
	unsigned mod;
	int n, t, phy_ports;
	int portnum = 0;

	if (argc > 0)
		portnum = strtol(argv[0], NULL, 0);

	/* Get the partition capacity */
	if (!smp_query_via(data, dest, IB_ATTR_NODE_INFO, 0, 0, srcport))
		return "node info query failed";

	mad_decode_field(data, IB_NODE_TYPE_F, &t);
	mad_decode_field(data, IB_NODE_NPORTS_F, &phy_ports);
	if (portnum > phy_ports)
		return "invalid port number";

	if ((t == IB_NODE_SWITCH) && (portnum != 0)) {
		if (!smp_query_via(data, dest, IB_ATTR_SWITCH_INFO, 0, 0,
				   srcport))
			return "switch info failed";
		mad_decode_field(data, IB_SW_PARTITION_ENFORCE_CAP_F, &n);
	} else
		mad_decode_field(data, IB_NODE_PARTITION_CAP_F, &n);

	for (i = 0; i < (n + 31) / 32; i++) {
		mod = i | (portnum << 16);
		if (!smp_query_via(data, dest, IB_ATTR_PKEY_TBL, mod, 0,
				   srcport))
			return "pkey table query failed";
		if (i + 1 == (n + 31) / 32)
			k = ((n + 7 - i * 32) / 8) * 8;
		else
			k = 32;
		p = (__be16 *) data;
		for (j = 0; j < k; j += 8, p += 8) {
			printf
			    ("%4u: 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
			     (i * 32) + j, ntohs(p[0]), ntohs(p[1]),
			     ntohs(p[2]), ntohs(p[3]), ntohs(p[4]), ntohs(p[5]),
			     ntohs(p[6]), ntohs(p[7]));
		}
	}
	printf("%d pkeys capacity for this port\n", n);

	return NULL;
}

static const char *sl2vl_dump_table_entry(ib_portid_t *dest, int in, int out)
{
	char buf[2048];
	char data[IB_SMP_DATA_SIZE] = { 0 };
	int portnum = (in << 8) | out;

	if (!smp_query_via(data, dest, IB_ATTR_SLVL_TABLE, portnum, 0, srcport))
		return "slvl query failed";

	mad_dump_sltovl(buf, sizeof buf, data, sizeof data);
	printf("ports: in %2d, out %2d: ", in, out);
	printf("%s", buf);
	return NULL;
}

static const char *sl2vl_table(ib_portid_t *dest, char **argv, int argc)
{
	uint8_t data[IB_SMP_DATA_SIZE] = { 0 };
	int type, num_ports, portnum = 0;
	int i;
	const char *ret;

	if (argc > 0)
		portnum = strtol(argv[0], NULL, 0);

	if (!smp_query_via(data, dest, IB_ATTR_NODE_INFO, 0, 0, srcport))
		return "node info query failed";

	mad_decode_field(data, IB_NODE_TYPE_F, &type);
	mad_decode_field(data, IB_NODE_NPORTS_F, &num_ports);
	if (portnum > num_ports)
		return "invalid port number";

	printf("# SL2VL table: %s\n", portid2str(dest));
	printf("#                 SL: |");
	for (i = 0; i < 16; i++)
		printf("%2d|", i);
	printf("\n");

	if (type != IB_NODE_SWITCH)
		return sl2vl_dump_table_entry(dest, 0, 0);

	for (i = 0; i <= num_ports; i++) {
		ret = sl2vl_dump_table_entry(dest, i, portnum);
		if (ret)
			return ret;
	}
	return NULL;
}

static const char *vlarb_dump_table_entry(ib_portid_t *dest, int portnum,
					  int offset, unsigned cap)
{
	char buf[2048];
	char data[IB_SMP_DATA_SIZE] = { 0 };

	if (!smp_query_via(data, dest, IB_ATTR_VL_ARBITRATION,
			   (offset << 16) | portnum, 0, srcport))
		return "vl arb query failed";
	mad_dump_vlarbitration(buf, sizeof(buf), data, cap * 2);
	printf("%s", buf);
	return NULL;
}

static const char *vlarb_dump_table(ib_portid_t *dest, int portnum,
				    const char *name, int offset, int cap)
{
	const char *ret;

	printf("# %s priority VL Arbitration Table:", name);
	ret = vlarb_dump_table_entry(dest, portnum, offset,
				     cap < 32 ? cap : 32);
	if (!ret && cap > 32)
		ret = vlarb_dump_table_entry(dest, portnum, offset + 1,
					     cap - 32);
	return ret;
}

static const char *vlarb_table(ib_portid_t *dest, char **argv, int argc)
{
	uint8_t data[IB_SMP_DATA_SIZE] = { 0 };
	int portnum = 0;
	int type, enhsp0, lowcap, highcap;
	const char *ret = NULL;

	if (argc > 0)
		portnum = strtol(argv[0], NULL, 0);

	/* port number of 0 could mean SP0 or port MAD arrives on */
	if (portnum == 0) {
		if (!smp_query_via(data, dest, IB_ATTR_NODE_INFO, 0, 0,
				   srcport))
			return "node info query failed";

		mad_decode_field(data, IB_NODE_TYPE_F, &type);
		if (type == IB_NODE_SWITCH) {
			memset(data, 0, sizeof(data));
			if (!smp_query_via(data, dest, IB_ATTR_SWITCH_INFO, 0,
					   0, srcport))
				return "switch info query failed";
			mad_decode_field(data, IB_SW_ENHANCED_PORT0_F, &enhsp0);
			if (!enhsp0) {
				printf
				    ("# No VLArbitration tables (BSP0): %s port %d\n",
				     portid2str(dest), 0);
				return NULL;
			}
			memset(data, 0, sizeof(data));
		}
	}

	if (!smp_query_via(data, dest, IB_ATTR_PORT_INFO, portnum, 0, srcport))
		return "port info query failed";

	mad_decode_field(data, IB_PORT_VL_ARBITRATION_LOW_CAP_F, &lowcap);
	mad_decode_field(data, IB_PORT_VL_ARBITRATION_HIGH_CAP_F, &highcap);

	printf("# VLArbitration tables: %s port %d LowCap %d HighCap %d\n",
	       portid2str(dest), portnum, lowcap, highcap);

	if (lowcap > 0)
		ret = vlarb_dump_table(dest, portnum, "Low", 1, lowcap);

	if (!ret && highcap > 0)
		ret = vlarb_dump_table(dest, portnum, "High", 3, highcap);

	return ret;
}

static const char *guid_info(ib_portid_t *dest, char **argv, int argc)
{
	uint8_t data[IB_SMP_DATA_SIZE] = { 0 };
	int i, j, k;
	__be64 *p;
	unsigned mod;
	int n;

	/* Get the guid capacity */
	if (!smp_query_via(data, dest, IB_ATTR_PORT_INFO, 0, 0, srcport))
		return "port info failed";
	mad_decode_field(data, IB_PORT_GUID_CAP_F, &n);

	for (i = 0; i < (n + 7) / 8; i++) {
		mod = i;
		if (!smp_query_via(data, dest, IB_ATTR_GUID_INFO, mod, 0,
				   srcport))
			return "guid info query failed";
		if (i + 1 == (n + 7) / 8)
			k = ((n + 1 - i * 8) / 2) * 2;
		else
			k = 8;
		p = (__be64 *) data;
		for (j = 0; j < k; j += 2, p += 2) {
			printf("%4u: 0x%016" PRIx64 " 0x%016" PRIx64 "\n",
			       (i * 8) + j, be64toh(p[0]), be64toh(p[1]));
		}
	}
	printf("%d guids capacity for this port\n", n);

	return NULL;
}

static int process_opt(void *context, int ch)
{
	switch (ch) {
	case 1:
		node_name_map_file = strdup(optarg);
		if (node_name_map_file == NULL)
			IBEXIT("out of memory, strdup for node_name_map_file name failed");
		break;
	case 'c':
		ibd_dest_type = IB_DEST_DRSLID;
		break;
	case 'x':
		extended_speeds = 1;
		break;
	default:
		return -1;
	}
	return 0;
}

int main(int argc, char **argv)
{
	char usage_args[1024];
	int mgmt_classes[3] =
	    { IB_SMI_CLASS, IB_SMI_DIRECT_CLASS, IB_SA_CLASS };
	ib_portid_t portid = { 0 };
	const char *err;
	op_fn_t *fn;
	const match_rec_t *r;
	int n;

	const struct ibdiag_opt opts[] = {
		{"combined", 'c', 0, NULL,
		 "use Combined route address argument"},
		{"node-name-map", 1, 1, "<file>", "node name map file"},
		{"extended", 'x', 0, NULL, "use extended speeds"},
		{}
	};
	const char *usage_examples[] = {
		"portinfo 3 1\t\t\t\t# portinfo by lid, with port modifier",
		"-G switchinfo 0x2C9000100D051 1\t# switchinfo by guid",
		"-D nodeinfo 0\t\t\t\t# nodeinfo by direct route",
		"-c nodeinfo 6 0,12\t\t\t# nodeinfo by combined route",
		NULL
	};

	n = sprintf(usage_args, "<op> <dest dr_path|lid|guid> [op params]\n"
		    "\nSupported ops (and aliases, case insensitive):\n");
	for (r = match_tbl; r->name; r++) {
		n += snprintf(usage_args + n, sizeof(usage_args) - n,
			      "  %s (%s) <addr>%s\n", r->name,
			      r->alias ? r->alias : "",
			      r->opt_portnum ? " [<portnum>]" : "");
		if (n >= sizeof(usage_args))
			exit(-1);
	}

	ibdiag_process_opts(argc, argv, NULL, NULL, opts, process_opt,
			    usage_args, usage_examples);

	argc -= optind;
	argv += optind;

	if (argc < 2)
		ibdiag_show_usage();

	if (!(fn = match_op(match_tbl, argv[0])))
		IBEXIT("operation '%s' not supported", argv[0]);

	srcport = mad_rpc_open_port(ibd_ca, ibd_ca_port, mgmt_classes, 3);
	if (!srcport)
		IBEXIT("Failed to open '%s' port '%d'", ibd_ca, ibd_ca_port);

	smp_mkey_set(srcport, ibd_mkey);

	node_name_map = open_node_name_map(node_name_map_file);

	if (ibd_dest_type != IB_DEST_DRSLID) {
		if (resolve_portid_str(ibd_ca, ibd_ca_port, &portid, argv[1],
				       ibd_dest_type, ibd_sm_id, srcport) < 0)
			IBEXIT("can't resolve destination port %s", argv[1]);
		if ((err = fn(&portid, argv + 2, argc - 2)))
			IBEXIT("operation %s: %s", argv[0], err);
	} else {
		char concat[64];

		memset(concat, 0, 64);
		snprintf(concat, sizeof(concat), "%s %s", argv[1], argv[2]);
		if (resolve_portid_str(ibd_ca, ibd_ca_port, &portid, concat,
				       ibd_dest_type, ibd_sm_id, srcport) < 0)
			IBEXIT("can't resolve destination port %s", concat);
		if ((err = fn(&portid, argv + 3, argc - 3)))
			IBEXIT("operation %s: %s", argv[0], err);
	}
	close_node_name_map(node_name_map);
	mad_rpc_close_port(srcport);
	exit(0);
}