eal: set iopl only when needed
[dpdk.git] / lib / librte_eal / linuxapp / eal / eal.c
index 93a6d82..7a1d087 100644 (file)
@@ -1,13 +1,14 @@
 /*-
  *   BSD LICENSE
- * 
- *   Copyright(c) 2010-2013 Intel Corporation. All rights reserved.
+ *
+ *   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
@@ -17,7 +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 <syslog.h>
 #include <getopt.h>
 #include <sys/file.h>
+#include <fcntl.h>
+#include <dlfcn.h>
 #include <stddef.h>
 #include <errno.h>
 #include <limits.h>
 #include <errno.h>
 #include <sys/mman.h>
 #include <sys/queue.h>
-#include <sys/user.h>
-#include <linux/binfmts.h>
+#include <sys/io.h>
 
 #include <rte_common.h>
 #include <rte_debug.h>
 #include <rte_cpuflags.h>
 #include <rte_interrupts.h>
 #include <rte_pci.h>
+#include <rte_devargs.h>
 #include <rte_common.h>
 #include <rte_version.h>
 #include <rte_atomic.h>
 #include <malloc_heap.h>
+#include <rte_eth_ring.h>
 
 #include "eal_private.h"
 #include "eal_thread.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_SYSLOG      "syslog"
-
-#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 BITS_PER_HEX 4
-
-#define GET_BLACKLIST_FIELD(in, fd, lim, dlm)                   \
-{                                                               \
-       unsigned long val;                                      \
-       char *end;                                              \
-       errno = 0;                                              \
-       val = strtoul((in), &end, 16);                          \
-       if (errno != 0 || end[0] != (dlm) || val > (lim))       \
-               return (-EINVAL);                               \
-       (fd) = (typeof (fd))val;                                \
-       (in) = end + 1;                                         \
-}
-
 /* Allow the application to print its usage message too if set */
 static rte_usage_hook_t        rte_application_usage_hook = NULL;
+
+TAILQ_HEAD(shared_driver_list, shared_driver);
+
+/* Definition for shared object drivers. */
+struct shared_driver {
+       TAILQ_ENTRY(shared_driver) next;
+
+       char    name[PATH_MAX];
+       void*   lib_handle;
+};
+
+/* List of external loadable drivers */
+static struct shared_driver_list solib_list =
+TAILQ_HEAD_INITIALIZER(solib_list);
+
 /* early configuration structure, when memory config is not mmapped */
 static struct rte_mem_config early_mem_config;
 
@@ -130,8 +123,6 @@ static struct rte_config rte_config = {
                .mem_config = &early_mem_config,
 };
 
-static struct rte_pci_addr eal_dev_blacklist[RTE_EAL_BLACKLIST_SIZE];
-
 /* internal configuration (per-core) */
 struct lcore_config lcore_config[RTE_MAX_LCORE];
 
@@ -197,6 +188,14 @@ 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)
@@ -216,7 +215,7 @@ 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){
@@ -224,13 +223,19 @@ 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)
@@ -242,13 +247,40 @@ 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 */
@@ -275,8 +307,6 @@ 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 */
@@ -288,6 +318,7 @@ 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:
@@ -304,13 +335,13 @@ eal_hugedirs_unlock(void)
        for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
        {
                /* skip uninitialized */
-               if (internal_config.hugepage_info[i].lock_descriptor == 0)
+               if (internal_config.hugepage_info[i].lock_descriptor < 0)
                        continue;
                /* unlock hugepage file */
                flock(internal_config.hugepage_info[i].lock_descriptor, LOCK_UN);
                close(internal_config.hugepage_info[i].lock_descriptor);
                /* reset the field */
-               internal_config.hugepage_info[i].lock_descriptor = 0;
+               internal_config.hugepage_info[i].lock_descriptor = -1;
        }
 }
 
@@ -318,32 +349,21 @@ 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"
-              "  -b <domain:bus:devid.func>: to prevent EAL from using specified "
-           "PCI device\n"
-              "                 (multiple -b options are allowed)\n"
-              "  -m MB        : memory to allocate (see also --"OPT_SOCKET_MEM")\n"
-              "  -r NUM       : force number of memory ranks (don't detect)\n"
-              "  --"OPT_SYSLOG"     : set syslog facility\n"
-              "  --"OPT_SOCKET_MEM" : memory to allocate on specific \n"
+       printf("\nUsage: %s ", prgname);
+       eal_common_usage();
+       printf("EAL Linux options:\n"
+              "  -d LIB.so    : add driver (can be used multiple times)\n"
+              "  --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
+                          "without hugetlbfs\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_VMWARE_TSC_MAP": use VMware TSC map instead of "
-                          "native RDTSC\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);
+              "  --"OPT_BASE_VIRTADDR": specify base virtual address\n"
+              "  --"OPT_VFIO_INTR": specify desired interrupt mode for VFIO "
+                          "(legacy|msi|msix)\n"
+              "  --"OPT_CREATE_UIO_DEV": create /dev/uioX (usually done by hotplug)\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");
@@ -364,114 +384,6 @@ 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, MAX_ARG_STRLEN);
-       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;
-       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)
 {
@@ -522,6 +434,54 @@ eal_parse_socket_mem(char *socket_mem)
        return 0;
 }
 
+static int
+eal_parse_base_virtaddr(const char *arg)
+{
+       char *end;
+       uint64_t addr;
+
+       errno = 0;
+       addr = strtoull(arg, &end, 16);
+
+       /* check for errors */
+       if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
+               return -1;
+
+       /* make sure we don't exceed 32-bit boundary on 32-bit target */
+#ifndef RTE_ARCH_X86_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);
+
+       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)
 {
@@ -540,35 +500,6 @@ 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;
-}
-
-static ssize_t
-eal_parse_blacklist_opt(const char *optarg, size_t idx)
-{
-       if (idx >= sizeof (eal_dev_blacklist) / sizeof (eal_dev_blacklist[0])) {
-               RTE_LOG(ERR, EAL, "%s - too many devices to blacklist...\n", optarg);
-               return (-EINVAL);
-       } else if (eal_parse_pci_DomBDF(optarg, eal_dev_blacklist + idx) < 0 &&
-                       eal_parse_pci_BDF(optarg, eal_dev_blacklist + idx) < 0) {
-               RTE_LOG(ERR, EAL, "%s - invalid device to blacklist...\n", optarg);
-               return (-EINVAL);
-       }
-
-       idx += 1;
-       return (idx);
-}
-
 /* Parse the argument given in the command line of the application */
 static int
 eal_parse_args(int argc, char **argv)
@@ -577,21 +508,8 @@ eal_parse_args(int argc, char **argv)
        char **argvopt;
        int option_index;
        int coremask_ok = 0;
-       ssize_t blacklist_index = 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_SYSLOG, 1, NULL, 0},
-               {0, 0, 0, 0}
-       };
+       struct shared_driver *solib;
 
        argvopt = argv;
 
@@ -602,6 +520,11 @@ eal_parse_args(int argc, char **argv)
        internal_config.hugepage_dir = NULL;
        internal_config.force_sockets = 0;
        internal_config.syslog_facility = LOG_DAEMON;
+       /* default value from build option */
+       internal_config.log_level = RTE_LOG_LEVEL;
+       internal_config.xen_dom0_support = 0;
+       /* if set to NONE, interrupt mode is determined automatically */
+       internal_config.vfio_intr_mode = RTE_INTR_MODE_NONE;
 #ifdef RTE_LIBEAL_USE_HPET
        internal_config.no_hpet = 0;
 #else
@@ -613,109 +536,113 @@ eal_parse_args(int argc, char **argv)
 
        /* zero out hugedir descriptors */
        for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
-               internal_config.hugepage_info[i].lock_descriptor = 0;
+               internal_config.hugepage_info[i].lock_descriptor = -1;
 
        internal_config.vmware_tsc_map = 0;
+       internal_config.base_virtaddr = 0;
+
+       while ((opt = getopt_long(argc, argvopt, eal_short_options,
+                                 eal_long_options, &option_index)) != EOF) {
+
+               int ret;
+
+               /* getopt is not happy, stop right now */
+               if (opt == '?')
+                       return -1;
 
-       while ((opt = getopt_long(argc, argvopt, "b:c:m:n:r:v",
-                                 lgopts, &option_index)) != EOF) {
+               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) {
+                       /* special case, note that the common parser accepted
+                        * the coremask option */
+                       if (opt == 'c')
+                               coremask_ok = 1;
+                       continue;
+               }
 
                switch (opt) {
-               /* blacklist */
-               case 'b':
-                       if ((blacklist_index = eal_parse_blacklist_opt(optarg,
-                           blacklist_index)) < 0) {
-                               eal_usage(prgname);
-                               return (-1);
+               /* force loading of external driver */
+               case 'd':
+                       solib = malloc(sizeof(*solib));
+                       if (solib == NULL) {
+                               RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
+                               return -1;
                        }
+                       memset(solib, 0, sizeof(*solib));
+                       strncpy(solib->name, optarg, PATH_MAX-1);
+                       solib->name[PATH_MAX-1] = 0;
+                       TAILQ_INSERT_TAIL(&solib_list, solib, next);
                        break;
-               /* coremask */
-               case 'c':
-                       if (eal_parse_coremask(optarg) < 0) {
-                               RTE_LOG(ERR, EAL, "invalid coremask\n");
+
+               /* 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;
+
+               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;
                        }
-                       coremask_ok = 1;
-                       break;
-               /* size of memory */
-               case 'm':
-                       internal_config.memory = atoi(optarg);
-                       internal_config.memory *= 1024ULL;
-                       internal_config.memory *= 1024ULL;
                        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_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;
-               /* 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_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;
                        }
                        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;
-                       }
-                       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_SYSLOG)) {
-                               if (eal_parse_syslog(optarg) < 0) {
-                                       RTE_LOG(ERR, EAL, "invalid parameters for --"
-                                                       OPT_SYSLOG "\n");
-                                       eal_usage(prgname);
-                                       return -1;
-                               }
-                       }
+               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;
                }
@@ -761,9 +688,21 @@ eal_parse_args(int argc, char **argv)
                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 (blacklist_index > 0)
-               rte_eal_pci_set_blacklist(eal_dev_blacklist, blacklist_index);
+       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");
+               eal_usage(prgname);
+               return -1;
+       }
 
        if (optind >= 0)
                argv[optind-1] = prgname;
@@ -803,7 +742,7 @@ 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 */
@@ -811,6 +750,17 @@ rte_eal_mcfg_complete(void)
                rte_config.mem_config->magic = RTE_MAGIC;
 }
 
+/*
+ * Request iopl privilege for all RPL, returns 0 on success
+ */
+int
+rte_eal_iopl_init(void)
+{
+       if (iopl(3) != 0)
+               return -1;
+       return 0;
+}
+
 /* Launch threads, called at application init(). */
 int
 rte_eal_init(int argc, char **argv)
@@ -818,21 +768,33 @@ rte_eal_init(int argc, char **argv)
        int i, fctret, ret;
        pthread_t thread_id;
        static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
+       struct shared_driver *solib = NULL;
+       const char *logid;
 
        if (!rte_atomic32_test_and_set(&run_once))
                return -1;
 
+       logid = strrchr(argv[0], '/');
+       logid = strdup(logid ? logid + 1: argv[0]);
+
        thread_id = pthread_self();
 
        if (rte_eal_log_early_init() < 0)
                rte_panic("Cannot init early logs\n");
 
+       if (rte_eal_cpu_init() < 0)
+               rte_panic("Cannot detect lcores\n");
+
        fctret = eal_parse_args(argc, 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 &&
                        eal_hugepage_info_init() < 0)
                rte_panic("Cannot get hugepage information\n");
 
@@ -857,23 +819,33 @@ rte_eal_init(int argc, char **argv)
        rte_srand(rte_rdtsc());
 
        rte_config_init();
-       
-       if (rte_eal_cpu_init() < 0)
-               rte_panic("Cannot detect lcores\n");
+
+       if (rte_eal_pci_init() < 0)
+               rte_panic("Cannot init PCI\n");
+
+#ifdef RTE_LIBRTE_IVSHMEM
+       if (rte_eal_ivshmem_init() < 0)
+               rte_panic("Cannot init IVSHMEM\n");
+#endif
 
        if (rte_eal_memory_init() < 0)
                rte_panic("Cannot init memory\n");
 
        /* the directories are locked during eal_hugepage_info_init */
        eal_hugedirs_unlock();
-       
+
        if (rte_eal_memzone_init() < 0)
                rte_panic("Cannot init memzone\n");
 
        if (rte_eal_tailqs_init() < 0)
                rte_panic("Cannot init tail queues for objects\n");
 
-       if (rte_eal_log_init(argv[0], internal_config.syslog_facility) < 0)
+#ifdef RTE_LIBRTE_IVSHMEM
+       if (rte_eal_ivshmem_obj_init() < 0)
+               rte_panic("Cannot init IVSHMEM objects\n");
+#endif
+
+       if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0)
                rte_panic("Cannot init logs\n");
 
        if (rte_eal_alarm_init() < 0)
@@ -885,15 +857,24 @@ rte_eal_init(int argc, char **argv)
        if (rte_eal_timer_init() < 0)
                rte_panic("Cannot init HPET or TSC timers\n");
 
-       if (rte_eal_pci_init() < 0)
-               rte_panic("Cannot init PCI\n");
+       eal_check_mem_on_local_socket();
+
+       rte_eal_mcfg_complete();
+
+       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)
+                       RTE_LOG(WARNING, EAL, "%s\n", dlerror());
+       }
+
+       eal_thread_init_master(rte_config.master_lcore);
 
        RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
                rte_config.master_lcore, (int)thread_id);
 
-       eal_check_mem_on_local_socket();
-
-       rte_eal_mcfg_complete();
+       if (rte_eal_dev_init() < 0)
+               rte_panic("Cannot init pmd devices\n");
 
        RTE_LCORE_FOREACH_SLAVE(i) {
 
@@ -915,8 +896,6 @@ 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.
@@ -924,6 +903,10 @@ 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;
 }
 
@@ -940,3 +923,7 @@ rte_eal_process_type(void)
        return (rte_config.process_type);
 }
 
+int rte_eal_has_hugepages(void)
+{
+       return ! internal_config.no_hugetlbfs;
+}