tailq: remove unneeded inclusions
[dpdk.git] / lib / librte_eal / linuxapp / eal / eal.c
index 3ded563..bd770cf 100644 (file)
@@ -1,14 +1,14 @@
 /*-
  *   BSD LICENSE
- * 
+ *
  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
  *   Copyright(c) 2012-2014 6WIND S.A.
  *   All rights reserved.
- * 
+ *
  *   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
@@ -18,7 +18,7 @@
  *     * Neither the name of Intel Corporation nor the names of its
  *       contributors may be used to endorse or promote products derived
  *       from this software without specific prior written permission.
- * 
+ *
  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 #include <errno.h>
 #include <sys/mman.h>
 #include <sys/queue.h>
+#if defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_I686)
 #include <sys/io.h>
+#endif
 
 #include <rte_common.h>
 #include <rte_debug.h>
 #include <rte_memory.h>
 #include <rte_memzone.h>
 #include <rte_launch.h>
-#include <rte_tailq.h>
 #include <rte_eal.h>
 #include <rte_eal_memconfig.h>
 #include <rte_per_lcore.h>
 #include "eal_internal_cfg.h"
 #include "eal_filesystem.h"
 #include "eal_hugepages.h"
-
-#define OPT_HUGE_DIR    "huge-dir"
-#define OPT_PROC_TYPE   "proc-type"
-#define OPT_NO_SHCONF   "no-shconf"
-#define OPT_NO_HPET     "no-hpet"
-#define OPT_VMWARE_TSC_MAP   "vmware-tsc-map"
-#define OPT_NO_PCI      "no-pci"
-#define OPT_NO_HUGE     "no-huge"
-#define OPT_FILE_PREFIX "file-prefix"
-#define OPT_SOCKET_MEM  "socket-mem"
-#define OPT_USE_DEVICE  "use-device"
-#define OPT_PCI_WHITELIST "pci-whitelist"
-#define OPT_PCI_BLACKLIST "pci-blacklist"
-#define OPT_VDEV        "vdev"
-#define OPT_SYSLOG      "syslog"
-#define OPT_BASE_VIRTADDR   "base-virtaddr"
-#define OPT_XEN_DOM0    "xen-dom0"
-#define OPT_CREATE_UIO_DEV "create-uio-dev"
-
-#define RTE_EAL_BLACKLIST_SIZE 0x100
+#include "eal_options.h"
 
 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
 
 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
 
-#define HIGHEST_RPL 3
-
-#define BITS_PER_HEX 4
-
 /* Allow the application to print its usage message too if set */
 static rte_usage_hook_t        rte_application_usage_hook = NULL;
 
@@ -211,6 +189,14 @@ rte_eal_config_create(void)
        if (internal_config.no_shconf)
                return;
 
+       /* map the config before hugepage address so that we don't waste a page */
+       if (internal_config.base_virtaddr != 0)
+               rte_mem_cfg_addr = (void *)
+                       RTE_ALIGN_FLOOR(internal_config.base_virtaddr -
+                       sizeof(struct rte_mem_config), sysconf(_SC_PAGE_SIZE));
+       else
+               rte_mem_cfg_addr = NULL;
+
        if (mem_cfg_fd < 0){
                mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0660);
                if (mem_cfg_fd < 0)
@@ -230,7 +216,7 @@ rte_eal_config_create(void)
                                "process running?\n", pathname);
        }
 
-       rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
+       rte_mem_cfg_addr = mmap(rte_mem_cfg_addr, sizeof(*rte_config.mem_config),
                                PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
 
        if (rte_mem_cfg_addr == MAP_FAILED){
@@ -238,13 +224,19 @@ rte_eal_config_create(void)
        }
        memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
        rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
+
+       /* store address of the config in the config itself so that secondary
+        * processes could later map the config into this exact location */
+       rte_config.mem_config->mem_cfg_addr = (uintptr_t) rte_mem_cfg_addr;
+
 }
 
 /* attach to an existing shared memory config */
 static void
 rte_eal_config_attach(void)
 {
-       void *rte_mem_cfg_addr;
+       struct rte_mem_config *mem_config;
+
        const char *pathname = eal_runtime_config_path();
 
        if (internal_config.no_shconf)
@@ -256,17 +248,44 @@ rte_eal_config_attach(void)
                        rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
        }
 
-       rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config), 
-                               PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
+       /* map it as read-only first */
+       mem_config = (struct rte_mem_config *) mmap(NULL, sizeof(*mem_config),
+                       PROT_READ, MAP_SHARED, mem_cfg_fd, 0);
+       if (mem_config == MAP_FAILED)
+               rte_panic("Cannot mmap memory for rte_config\n");
+
+       rte_config.mem_config = mem_config;
+}
+
+/* reattach the shared config at exact memory location primary process has it */
+static void
+rte_eal_config_reattach(void)
+{
+       struct rte_mem_config *mem_config;
+       void *rte_mem_cfg_addr;
+
+       if (internal_config.no_shconf)
+               return;
+
+       /* save the address primary process has mapped shared config to */
+       rte_mem_cfg_addr = (void *) (uintptr_t) rte_config.mem_config->mem_cfg_addr;
+
+       /* unmap original config */
+       munmap(rte_config.mem_config, sizeof(struct rte_mem_config));
+
+       /* remap the config at proper address */
+       mem_config = (struct rte_mem_config *) mmap(rte_mem_cfg_addr,
+                       sizeof(*mem_config), PROT_READ | PROT_WRITE, MAP_SHARED,
+                       mem_cfg_fd, 0);
        close(mem_cfg_fd);
-       if (rte_mem_cfg_addr == MAP_FAILED)
+       if (mem_config == MAP_FAILED || mem_config != rte_mem_cfg_addr)
                rte_panic("Cannot mmap memory for rte_config\n");
 
-       rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
+       rte_config.mem_config = mem_config;
 }
 
 /* Detect if we are a primary or a secondary process */
-static enum rte_proc_type_t
+enum rte_proc_type_t
 eal_proc_type_detect(void)
 {
        enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
@@ -289,11 +308,7 @@ eal_proc_type_detect(void)
 static void
 rte_config_init(void)
 {
-       /* set the magic in configuration structure */
-       rte_config.magic = RTE_MAGIC;
-       rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
-                       eal_proc_type_detect() : /* for auto, detect the type */
-                       internal_config.process_type; /* otherwise use what's already set */
+       rte_config.process_type = internal_config.process_type;
 
        switch (rte_config.process_type){
        case RTE_PROC_PRIMARY:
@@ -302,6 +317,7 @@ rte_config_init(void)
        case RTE_PROC_SECONDARY:
                rte_eal_config_attach();
                rte_eal_mcfg_wait_complete(rte_config.mem_config);
+               rte_eal_config_reattach();
                break;
        case RTE_PROC_AUTO:
        case RTE_PROC_INVALID:
@@ -332,45 +348,18 @@ eal_hugedirs_unlock(void)
 static void
 eal_usage(const char *prgname)
 {
-       printf("\nUsage: %s -c COREMASK -n NUM [-m NB] [-r NUM] [-b <domain:bus:devid.func>]"
-              "[--proc-type primary|secondary|auto] \n\n"
-              "EAL options:\n"
-              "  -c COREMASK  : A hexadecimal bitmask of cores to run on\n"
-              "  -n NUM       : Number of memory channels\n"
-                  "  -v           : Display version information on startup\n"
-              "  -d LIB.so    : add driver (can be used multiple times)\n"
-              "  -m MB        : memory to allocate (see also --"OPT_SOCKET_MEM")\n"
-              "  -r NUM       : force number of memory ranks (don't detect)\n"
-              "  --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
-                          "without hugetlbfs\n"
-              "  --"OPT_SYSLOG"     : set syslog facility\n"
-              "  --"OPT_SOCKET_MEM" : memory to allocate on specific \n"
-                  "                 sockets (use comma separated values)\n"
-              "  --"OPT_HUGE_DIR"   : directory where hugetlbfs is mounted\n"
-              "  --"OPT_PROC_TYPE"  : type of this process\n"
-              "  --"OPT_FILE_PREFIX": prefix for hugepage filenames\n"
-              "  --"OPT_PCI_BLACKLIST", -b: add a PCI device in black list.\n"
-              "               Prevent EAL from using this PCI device. The argument\n"
-              "               format is <domain:bus:devid.func>.\n"
-              "  --"OPT_PCI_WHITELIST", -w: add a PCI device in white list.\n"
-              "               Only use the specified PCI devices. The argument format\n"
-              "               is <[domain:]bus:devid.func>. This option can be present\n"
-              "               several times (once per device).\n"
-              "               [NOTE: PCI whitelist cannot be used with -b option]\n"
-              "  --"OPT_VDEV": add a virtual device.\n"
-              "               The argument format is <driver><id>[,key=val,...]\n"
-              "               (ex: --vdev=eth_pcap0,iface=eth2).\n"
-              "  --"OPT_VMWARE_TSC_MAP": use VMware TSC map instead of "
-                          "native RDTSC\n"
-              "  --"OPT_BASE_VIRTADDR": specify base virtual address\n"
-              "  --"OPT_CREATE_UIO_DEV": create /dev/uioX (usually done by hotplug)\n"
-              "\nEAL options for DEBUG use only:\n"
-              "  --"OPT_NO_HUGE"  : use malloc instead of hugetlbfs\n"
-              "  --"OPT_NO_PCI"   : disable pci\n"
-              "  --"OPT_NO_HPET"  : disable hpet\n"
-              "  --"OPT_NO_SHCONF": no shared config (mmap'd files)\n"
-              "\n",
-              prgname);
+       printf("\nUsage: %s ", prgname);
+       eal_common_usage();
+       printf("EAL Linux options:\n"
+              "  -d LIB.so           Add driver (can be used multiple times)\n"
+              "  --"OPT_SOCKET_MEM"        Memory to allocate on sockets (comma separated values)\n"
+              "  --"OPT_HUGE_DIR"          Directory where hugetlbfs is mounted\n"
+              "  --"OPT_FILE_PREFIX"       Prefix for hugepage filenames\n"
+              "  --"OPT_BASE_VIRTADDR"     Base virtual address\n"
+              "  --"OPT_CREATE_UIO_DEV"    Create /dev/uioX (usually done by hotplug)\n"
+              "  --"OPT_VFIO_INTR"         Interrupt mode for VFIO (legacy|msi|msix)\n"
+              "  --"OPT_XEN_DOM0"          Support running on Xen dom0 without hugetlbfs\n"
+              "\n");
        /* Allow the application to print its usage message too if hook is set */
        if ( rte_application_usage_hook ) {
                printf("===== Application Usage =====\n\n");
@@ -391,116 +380,6 @@ rte_set_application_usage_hook( rte_usage_hook_t usage_func )
        return old_func;
 }
 
-/*
- * Parse the coremask given as argument (hexadecimal string) and fill
- * the global configuration (core role and core count) with the parsed
- * value.
- */
-static int xdigit2val(unsigned char c)
-{
-       int val;
-       if(isdigit(c)) 
-               val = c - '0';
-       else if(isupper(c))
-               val = c - 'A' + 10;
-       else 
-               val = c - 'a' + 10;
-       return val;
-}
-static int
-eal_parse_coremask(const char *coremask)
-{
-       struct rte_config *cfg = rte_eal_get_configuration();
-       int i, j, idx = 0 ;
-       unsigned count = 0;
-       char c;
-       int val;
-
-       if (coremask == NULL)
-               return -1;
-       /* Remove all blank characters ahead and after .
-        * Remove 0x/0X if exists.
-        */
-       while (isblank(*coremask))
-               coremask++;
-       if (coremask[0] == '0' && ((coremask[1] == 'x')
-               ||  (coremask[1] == 'X')) )
-               coremask += 2;
-       i = strnlen(coremask, PATH_MAX);
-       while ((i > 0) && isblank(coremask[i - 1]))
-               i--;
-       if (i == 0)
-               return -1;
-
-       for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
-               c = coremask[i];
-               if (isxdigit(c) == 0) {
-                       /* invalid characters */
-                       return (-1);
-               }
-               val = xdigit2val(c);
-               for(j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++) {
-                       if((1 << j) & val) {
-                               cfg->lcore_role[idx] = ROLE_RTE;
-                               if(count == 0)
-                                       cfg->master_lcore = idx;
-                               count++;
-                       } else  {
-                               cfg->lcore_role[idx] = ROLE_OFF;
-                       }
-               }
-       }
-       for(; i >= 0; i--)
-               if(coremask[i] != '0')
-                       return -1;
-       for(; idx < RTE_MAX_LCORE; idx++)
-               cfg->lcore_role[idx] = ROLE_OFF;
-       if(count == 0)
-               return -1;
-       /* Update the count of enabled logical cores of the EAL configuration */
-       cfg->lcore_count = count;
-       return 0;
-}
-
-static int
-eal_parse_syslog(const char *facility)
-{
-       int i;
-       static struct {
-               const char *name;
-               int value;
-       } map[] = {
-               { "auth", LOG_AUTH },
-               { "cron", LOG_CRON },
-               { "daemon", LOG_DAEMON },
-               { "ftp", LOG_FTP },
-               { "kern", LOG_KERN },
-               { "lpr", LOG_LPR },
-               { "mail", LOG_MAIL },
-               { "news", LOG_NEWS },
-               { "syslog", LOG_SYSLOG },
-               { "user", LOG_USER },
-               { "uucp", LOG_UUCP },
-               { "local0", LOG_LOCAL0 },
-               { "local1", LOG_LOCAL1 },
-               { "local2", LOG_LOCAL2 },
-               { "local3", LOG_LOCAL3 },
-               { "local4", LOG_LOCAL4 },
-               { "local5", LOG_LOCAL5 },
-               { "local6", LOG_LOCAL6 },
-               { "local7", LOG_LOCAL7 },
-               { NULL, 0 }
-       };
-
-       for (i = 0; map[i].name; i++) {
-               if (!strcmp(facility, map[i].name)) {
-                       internal_config.syslog_facility = map[i].value;
-                       return 0;
-               }
-       }
-       return -1;
-}
-
 static int
 eal_parse_socket_mem(char *socket_mem)
 {
@@ -557,6 +436,7 @@ eal_parse_base_virtaddr(const char *arg)
        char *end;
        uint64_t addr;
 
+       errno = 0;
        addr = strtoull(arg, &end, 16);
 
        /* check for errors */
@@ -564,18 +444,43 @@ eal_parse_base_virtaddr(const char *arg)
                return -1;
 
        /* make sure we don't exceed 32-bit boundary on 32-bit target */
-#ifndef RTE_ARCH_X86_64
+#ifndef RTE_ARCH_64
        if (addr >= UINTPTR_MAX)
                return -1;
 #endif
 
-       /* align the addr on 2M boundary */
-       internal_config.base_virtaddr = RTE_PTR_ALIGN_CEIL((uintptr_t)addr,
-                                                          RTE_PGSIZE_2M);
+       /* align the addr on 16M boundary, 16MB is the minimum huge page
+        * size on IBM Power architecture. If the addr is aligned to 16MB,
+        * it can align to 2MB for x86. So this alignment can also be used
+        * on x86 */
+       internal_config.base_virtaddr =
+               RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
 
        return 0;
 }
 
+static int
+eal_parse_vfio_intr(const char *mode)
+{
+       unsigned i;
+       static struct {
+               const char *name;
+               enum rte_intr_mode value;
+       } map[] = {
+               { "legacy", RTE_INTR_MODE_LEGACY },
+               { "msi", RTE_INTR_MODE_MSI },
+               { "msix", RTE_INTR_MODE_MSIX },
+       };
+
+       for (i = 0; i < RTE_DIM(map); i++) {
+               if (!strcmp(mode, map[i].name)) {
+                       internal_config.vfio_intr_mode = map[i].value;
+                       return 0;
+               }
+       }
+       return -1;
+}
+
 static inline size_t
 eal_get_hugepage_mem_size(void)
 {
@@ -594,104 +499,46 @@ eal_get_hugepage_mem_size(void)
        return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
 }
 
-static enum rte_proc_type_t
-eal_parse_proc_type(const char *arg)
-{
-       if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
-               return RTE_PROC_PRIMARY;
-       if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
-               return RTE_PROC_SECONDARY;
-       if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
-               return RTE_PROC_AUTO;
-
-       return RTE_PROC_INVALID;
-}
-
 /* Parse the argument given in the command line of the application */
 static int
 eal_parse_args(int argc, char **argv)
 {
-       int opt, ret, i;
+       int opt, ret;
        char **argvopt;
        int option_index;
-       int coremask_ok = 0;
        char *prgname = argv[0];
-       static struct option lgopts[] = {
-               {OPT_NO_HUGE, 0, 0, 0},
-               {OPT_NO_PCI, 0, 0, 0},
-               {OPT_NO_HPET, 0, 0, 0},
-               {OPT_VMWARE_TSC_MAP, 0, 0, 0},
-               {OPT_HUGE_DIR, 1, 0, 0},
-               {OPT_NO_SHCONF, 0, 0, 0},
-               {OPT_PROC_TYPE, 1, 0, 0},
-               {OPT_FILE_PREFIX, 1, 0, 0},
-               {OPT_SOCKET_MEM, 1, 0, 0},
-               {OPT_PCI_WHITELIST, 1, 0, 0},
-               {OPT_PCI_BLACKLIST, 1, 0, 0},
-               {OPT_VDEV, 1, 0, 0},
-               {OPT_SYSLOG, 1, NULL, 0},
-               {OPT_BASE_VIRTADDR, 1, 0, 0},
-               {OPT_XEN_DOM0, 0, 0, 0},
-               {OPT_CREATE_UIO_DEV, 1, NULL, 0},
-               {0, 0, 0, 0}
-       };
        struct shared_driver *solib;
 
        argvopt = argv;
 
-       internal_config.memory = 0;
-       internal_config.force_nrank = 0;
-       internal_config.force_nchannel = 0;
-       internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
-       internal_config.hugepage_dir = NULL;
-       internal_config.force_sockets = 0;
-       internal_config.syslog_facility = LOG_DAEMON;
-       internal_config.xen_dom0_support = 0;
-#ifdef RTE_LIBEAL_USE_HPET
-       internal_config.no_hpet = 0;
-#else
-       internal_config.no_hpet = 1;
-#endif
-       /* zero out the NUMA config */
-       for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
-               internal_config.socket_mem[i] = 0;
+       eal_reset_internal_config(&internal_config);
 
-       /* zero out hugedir descriptors */
-       for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
-               internal_config.hugepage_info[i].lock_descriptor = -1;
+       while ((opt = getopt_long(argc, argvopt, eal_short_options,
+                                 eal_long_options, &option_index)) != EOF) {
 
-       internal_config.vmware_tsc_map = 0;
-       internal_config.base_virtaddr = 0;
+               int ret;
 
-       while ((opt = getopt_long(argc, argvopt, "b:w:c:d:m:n:r:v",
-                                 lgopts, &option_index)) != EOF) {
+               /* getopt is not happy, stop right now */
+               if (opt == '?') {
+                       eal_usage(prgname);
+                       return -1;
+               }
+
+               ret = eal_parse_common_option(opt, optarg, &internal_config);
+               /* common parser is not happy */
+               if (ret < 0) {
+                       eal_usage(prgname);
+                       return -1;
+               }
+               /* common parser handled this option */
+               if (ret == 0)
+                       continue;
 
                switch (opt) {
-               /* blacklist */
-               case 'b':
-                       if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
-                                       optarg) < 0) {
-                               eal_usage(prgname);
-                               return (-1);
-                       }
-                       break;
-               /* whitelist */
-               case 'w':
-                       if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
-                                       optarg) < 0) {
-                               eal_usage(prgname);
-                               return -1;
-                       }
-                       break;
-               /* coremask */
-               case 'c':
-                       if (eal_parse_coremask(optarg) < 0) {
-                               RTE_LOG(ERR, EAL, "invalid coremask\n");
-                               eal_usage(prgname);
-                               return -1;
-                       }
-                       coremask_ok = 1;
-                       break;
+               case 'h':
+                       eal_usage(prgname);
+                       exit(EXIT_SUCCESS);
+
                /* force loading of external driver */
                case 'd':
                        solib = malloc(sizeof(*solib));
@@ -704,201 +551,95 @@ eal_parse_args(int argc, char **argv)
                        solib->name[PATH_MAX-1] = 0;
                        TAILQ_INSERT_TAIL(&solib_list, solib, next);
                        break;
-               /* size of memory */
-               case 'm':
-                       internal_config.memory = atoi(optarg);
-                       internal_config.memory *= 1024ULL;
-                       internal_config.memory *= 1024ULL;
+
+               /* long options */
+               case OPT_XEN_DOM0_NUM:
+#ifdef RTE_LIBRTE_XEN_DOM0
+                       internal_config.xen_dom0_support = 1;
+#else
+                       RTE_LOG(ERR, EAL, "Can't support DPDK app "
+                               "running on Dom0, please configure"
+                               " RTE_LIBRTE_XEN_DOM0=y\n");
+                       return -1;
+#endif
+                       break;
+
+               case OPT_HUGE_DIR_NUM:
+                       internal_config.hugepage_dir = optarg;
+                       break;
+
+               case OPT_FILE_PREFIX_NUM:
+                       internal_config.hugefile_prefix = optarg;
                        break;
-               /* force number of channels */
-               case 'n':
-                       internal_config.force_nchannel = atoi(optarg);
-                       if (internal_config.force_nchannel == 0 ||
-                           internal_config.force_nchannel > 4) {
-                               RTE_LOG(ERR, EAL, "invalid channel number\n");
+
+               case OPT_SOCKET_MEM_NUM:
+                       if (eal_parse_socket_mem(optarg) < 0) {
+                               RTE_LOG(ERR, EAL, "invalid parameters for --"
+                                               OPT_SOCKET_MEM "\n");
                                eal_usage(prgname);
                                return -1;
                        }
                        break;
-               /* force number of ranks */
-               case 'r':
-                       internal_config.force_nrank = atoi(optarg);
-                       if (internal_config.force_nrank == 0 ||
-                           internal_config.force_nrank > 16) {
-                               RTE_LOG(ERR, EAL, "invalid rank number\n");
+
+               case OPT_BASE_VIRTADDR_NUM:
+                       if (eal_parse_base_virtaddr(optarg) < 0) {
+                               RTE_LOG(ERR, EAL, "invalid parameter for --"
+                                               OPT_BASE_VIRTADDR "\n");
                                eal_usage(prgname);
                                return -1;
                        }
                        break;
-               case 'v':
-                       /* since message is explicitly requested by user, we
-                        * write message at highest log level so it can always be seen
-                        * even if info or warning messages are disabled */
-                       RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
-                       break;
 
-               /* long options */
-               case 0:
-                       if (!strcmp(lgopts[option_index].name, OPT_NO_HUGE)) {
-                               internal_config.no_hugetlbfs = 1;
-                       }
-                       if (!strcmp(lgopts[option_index].name, OPT_XEN_DOM0)) {
-               #ifdef RTE_LIBRTE_XEN_DOM0
-                               internal_config.xen_dom0_support = 1;
-               #else
-                               RTE_LOG(ERR, EAL, "Can't support DPDK app "
-                                       "running on Dom0, please configure"
-                                       " RTE_LIBRTE_XEN_DOM0=y\n");
-                               return -1;
-               #endif 
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_NO_PCI)) {
-                               internal_config.no_pci = 1;
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_NO_HPET)) {
-                               internal_config.no_hpet = 1;
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_VMWARE_TSC_MAP)) {
-                               internal_config.vmware_tsc_map = 1;
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_NO_SHCONF)) {
-                               internal_config.no_shconf = 1;
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_HUGE_DIR)) {
-                               internal_config.hugepage_dir = optarg;
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_PROC_TYPE)) {
-                               internal_config.process_type = eal_parse_proc_type(optarg);
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_FILE_PREFIX)) {
-                               internal_config.hugefile_prefix = optarg;
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_SOCKET_MEM)) {
-                               if (eal_parse_socket_mem(optarg) < 0) {
-                                       RTE_LOG(ERR, EAL, "invalid parameters for --"
-                                                       OPT_SOCKET_MEM "\n");
-                                       eal_usage(prgname);
-                                       return -1;
-                               }
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_USE_DEVICE)) {
-                               printf("The --use-device option is deprecated, please use\n"
-                                       "--whitelist or --vdev instead.\n");
+               case OPT_VFIO_INTR_NUM:
+                       if (eal_parse_vfio_intr(optarg) < 0) {
+                               RTE_LOG(ERR, EAL, "invalid parameters for --"
+                                               OPT_VFIO_INTR "\n");
                                eal_usage(prgname);
                                return -1;
                        }
-                       else if (!strcmp(lgopts[option_index].name, OPT_PCI_BLACKLIST)) {
-                               if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
-                                               optarg) < 0) {
-                                       eal_usage(prgname);
-                                       return -1;
-                               }
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_PCI_WHITELIST)) {
-                               if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
-                                               optarg) < 0) {
-                                       eal_usage(prgname);
-                                       return -1;
-                               }
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_VDEV)) {
-                               if (rte_eal_devargs_add(RTE_DEVTYPE_VIRTUAL,
-                                               optarg) < 0) {
-                                       eal_usage(prgname);
-                                       return -1;
-                               }
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_SYSLOG)) {
-                               if (eal_parse_syslog(optarg) < 0) {
-                                       RTE_LOG(ERR, EAL, "invalid parameters for --"
-                                                       OPT_SYSLOG "\n");
-                                       eal_usage(prgname);
-                                       return -1;
-                               }
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_BASE_VIRTADDR)) {
-                               if (eal_parse_base_virtaddr(optarg) < 0) {
-                                       RTE_LOG(ERR, EAL, "invalid parameter for --"
-                                                       OPT_BASE_VIRTADDR "\n");
-                                       eal_usage(prgname);
-                                       return -1;
-                               }
-                       }
-                       else if (!strcmp(lgopts[option_index].name, OPT_CREATE_UIO_DEV)) {
-                               internal_config.create_uio_dev = 1;
-                       }
+                       break;
+
+               case OPT_CREATE_UIO_DEV_NUM:
+                       internal_config.create_uio_dev = 1;
                        break;
 
                default:
+                       if (opt < OPT_LONG_MIN_NUM && isprint(opt)) {
+                               RTE_LOG(ERR, EAL, "Option %c is not supported "
+                                       "on Linux\n", opt);
+                       } else if (opt >= OPT_LONG_MIN_NUM &&
+                                  opt < OPT_LONG_MAX_NUM) {
+                               RTE_LOG(ERR, EAL, "Option %s is not supported "
+                                       "on Linux\n",
+                                       eal_long_options[option_index].name);
+                       } else {
+                               RTE_LOG(ERR, EAL, "Option %d is not supported "
+                                       "on Linux\n", opt);
+                       }
                        eal_usage(prgname);
                        return -1;
                }
        }
 
-       /* sanity checks */
-       if (!coremask_ok) {
-               RTE_LOG(ERR, EAL, "coremask not specified\n");
-               eal_usage(prgname);
+       if (eal_adjust_config(&internal_config) != 0)
                return -1;
-       }
-       if (internal_config.process_type == RTE_PROC_AUTO){
-               internal_config.process_type = eal_proc_type_detect();
-       }
-       if (internal_config.process_type == RTE_PROC_INVALID){
-               RTE_LOG(ERR, EAL, "Invalid process type specified\n");
-               eal_usage(prgname);
-               return -1;
-       }
-       if (internal_config.process_type == RTE_PROC_PRIMARY &&
-                       internal_config.force_nchannel == 0) {
-               RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
-               eal_usage(prgname);
-               return -1;
-       }
-       if (index(internal_config.hugefile_prefix,'%') != NULL){
-               RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
-               eal_usage(prgname);
-               return -1;
-       }
-       if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
-               RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
-                               "at the same time\n");
-               eal_usage(prgname);
-               return -1;
-       }
-       /* --no-huge doesn't make sense with either -m or --socket-mem */
-       if (internal_config.no_hugetlbfs &&
-                       (internal_config.memory > 0 ||
-                                       internal_config.force_sockets == 1)) {
-               RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
-                               "together with --no-huge!\n");
+
+       /* sanity checks */
+       if (eal_check_common_options(&internal_config) != 0) {
                eal_usage(prgname);
                return -1;
        }
+
        /* --xen-dom0 doesn't make sense with --socket-mem */
        if (internal_config.xen_dom0_support && internal_config.force_sockets == 1) {
-               RTE_LOG(ERR, EAL, "Options --socket-mem cannot be specified "
-                                       "together with --xen_dom0!\n");
-               eal_usage(prgname);
-               return -1;
-       }
-
-       if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
-               rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
-               RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
-                       "[-w] options cannot be used at the same time\n");
+               RTE_LOG(ERR, EAL, "Options --"OPT_SOCKET_MEM" cannot be specified "
+                       "together with --"OPT_XEN_DOM0"\n");
                eal_usage(prgname);
                return -1;
        }
 
        if (optind >= 0)
                argv[optind-1] = prgname;
-
-       /* if no memory amounts were requested, this will result in 0 and
-        * will be overriden later, right after eal_hugepage_info_init() */
-       for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
-               internal_config.memory += internal_config.socket_mem[i];
-
        ret = optind-1;
        optind = 0; /* reset getopt lib */
        return ret;
@@ -929,7 +670,7 @@ sync_func(__attribute__((unused)) void *arg)
        return 0;
 }
 
-inline static void 
+inline static void
 rte_eal_mcfg_complete(void)
 {
        /* ALL shared mem_config related INIT DONE */
@@ -938,12 +679,20 @@ rte_eal_mcfg_complete(void)
 }
 
 /*
- * Request iopl priviledge for all RPL, returns 0 on success
+ * Request iopl privilege for all RPL, returns 0 on success
+ * iopl() call is mostly for the i386 architecture. For other architectures,
+ * return -1 to indicate IO privilege can't be changed in this way.
  */
-static int
+int
 rte_eal_iopl_init(void)
 {
-       return iopl(HIGHEST_RPL);
+#if defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_I686)
+       if (iopl(3) != 0)
+               return -1;
+       return 0;
+#else
+       return -1;
+#endif
 }
 
 /* Launch threads, called at application init(). */
@@ -955,6 +704,7 @@ rte_eal_init(int argc, char **argv)
        static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
        struct shared_driver *solib = NULL;
        const char *logid;
+       char cpuset[RTE_CPU_AFFINITY_STR_LEN];
 
        if (!rte_atomic32_test_and_set(&run_once))
                return -1;
@@ -974,6 +724,9 @@ rte_eal_init(int argc, char **argv)
        if (fctret < 0)
                exit(1);
 
+       /* set log level as early as possible */
+       rte_set_log_level(internal_config.log_level);
+
        if (internal_config.no_hugetlbfs == 0 &&
                        internal_config.process_type != RTE_PROC_SECONDARY &&
                        internal_config.xen_dom0_support == 0 &&
@@ -1002,9 +755,6 @@ rte_eal_init(int argc, char **argv)
 
        rte_config_init();
 
-       if (rte_eal_iopl_init() == 0)
-               rte_config.flags |= EAL_FLG_HIGH_IOPL;
-       
        if (rte_eal_pci_init() < 0)
                rte_panic("Cannot init PCI\n");
 
@@ -1018,7 +768,7 @@ rte_eal_init(int argc, char **argv)
 
        /* the directories are locked during eal_hugepage_info_init */
        eal_hugedirs_unlock();
-       
+
        if (rte_eal_memzone_init() < 0)
                rte_panic("Cannot init memzone\n");
 
@@ -1049,21 +799,20 @@ rte_eal_init(int argc, char **argv)
        TAILQ_FOREACH(solib, &solib_list, next) {
                RTE_LOG(INFO, EAL, "open shared lib %s\n", solib->name);
                solib->lib_handle = dlopen(solib->name, RTLD_NOW);
-               if ((solib->lib_handle == NULL) && (solib->name[0] != '/')) {
-                       /* relative path: try again with "./" prefix */
-                       char sopath[PATH_MAX];
-                       snprintf(sopath, sizeof(sopath), "./%s", solib->name);
-                       solib->lib_handle = dlopen(sopath, RTLD_NOW);
-               }
                if (solib->lib_handle == NULL)
                        RTE_LOG(WARNING, EAL, "%s\n", dlerror());
        }
 
-       if (rte_eal_vdev_init() < 0)
-               rte_panic("Cannot init virtual devices\n");
+       eal_thread_init_master(rte_config.master_lcore);
+
+       ret = eal_thread_dump_affinity(cpuset, RTE_CPU_AFFINITY_STR_LEN);
+
+       RTE_LOG(DEBUG, EAL, "Master lcore %u is ready (tid=%x;cpuset=[%s%s])\n",
+               rte_config.master_lcore, (int)thread_id, cpuset,
+               ret == 0 ? "" : "...");
 
-       RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
-               rte_config.master_lcore, (int)thread_id);
+       if (rte_eal_dev_init() < 0)
+               rte_panic("Cannot init pmd devices\n");
 
        RTE_LCORE_FOREACH_SLAVE(i) {
 
@@ -1085,8 +834,6 @@ rte_eal_init(int argc, char **argv)
                        rte_panic("Cannot create thread\n");
        }
 
-       eal_thread_init_master(rte_config.master_lcore);
-
        /*
         * Launch a dummy function on all slave lcores, so that master lcore
         * knows they are all ready when this function returns.
@@ -1094,6 +841,10 @@ rte_eal_init(int argc, char **argv)
        rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
        rte_eal_mp_wait_lcore();
 
+       /* Probe & Initialize PCI devices */
+       if (rte_eal_pci_probe())
+               rte_panic("Cannot probe PCI\n");
+
        return fctret;
 }
 
@@ -1114,3 +865,31 @@ int rte_eal_has_hugepages(void)
 {
        return ! internal_config.no_hugetlbfs;
 }
+
+int
+rte_eal_check_module(const char *module_name)
+{
+       char mod_name[30]; /* Any module names can be longer than 30 bytes? */
+       int ret = 0;
+       int n;
+
+       if (NULL == module_name)
+               return -1;
+
+       FILE *fd = fopen("/proc/modules", "r");
+       if (NULL == fd) {
+               RTE_LOG(ERR, EAL, "Open /proc/modules failed!"
+                       " error %i (%s)\n", errno, strerror(errno));
+               return -1;
+       }
+       while (!feof(fd)) {
+               n = fscanf(fd, "%29s %*[^\n]", mod_name);
+               if ((n == 1) && !strcmp(mod_name, module_name)) {
+                       ret = 1;
+                       break;
+               }
+       }
+       fclose(fd);
+
+       return ret;
+}