/*-
* 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
* * 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 <rte_atomic.h>
#include <malloc_heap.h>
#include <rte_eth_ring.h>
+#include <rte_dev.h>
#include "eal_private.h"
#include "eal_thread.h"
#define OPT_BASE_VIRTADDR "base-virtaddr"
#define OPT_XEN_DOM0 "xen-dom0"
#define OPT_CREATE_UIO_DEV "create-uio-dev"
+#define OPT_VFIO_INTR "vfio-intr"
#define RTE_EAL_BLACKLIST_SIZE 0x100
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)
"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){
}
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)
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 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 */
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:
" --"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_VMWARE_TSC_MAP": use VMware TSC map instead of native RDTSC\n"
" --"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"
"\nEAL options for DEBUG use only:\n"
" --"OPT_NO_HUGE" : use malloc instead of hugetlbfs\n"
static int xdigit2val(unsigned char c)
{
int val;
- if(isdigit(c))
+ if(isdigit(c))
val = c - '0';
else if(isupper(c))
val = c - 'A' + 10;
- else
+ else
val = c - 'a' + 10;
return val;
}
char *end;
uint64_t addr;
+ errno = 0;
addr = strtoull(arg, &end, 16);
/* check for errors */
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)
{
{OPT_PCI_BLACKLIST, 1, 0, 0},
{OPT_VDEV, 1, 0, 0},
{OPT_SYSLOG, 1, NULL, 0},
+ {OPT_VFIO_INTR, 1, NULL, 0},
{OPT_BASE_VIRTADDR, 1, 0, 0},
{OPT_XEN_DOM0, 0, 0, 0},
{OPT_CREATE_UIO_DEV, 1, NULL, 0},
internal_config.force_sockets = 0;
internal_config.syslog_facility = LOG_DAEMON;
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
"running on Dom0, please configure"
" RTE_LIBRTE_XEN_DOM0=y\n");
return -1;
- #endif
+ #endif
}
else if (!strcmp(lgopts[option_index].name, OPT_NO_PCI)) {
internal_config.no_pci = 1;
return -1;
}
}
+ else if (!strcmp(lgopts[option_index].name, OPT_VFIO_INTR)) {
+ 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_CREATE_UIO_DEV)) {
internal_config.create_uio_dev = 1;
}
return 0;
}
-inline static void
+inline static void
rte_eal_mcfg_complete(void)
{
/* ALL shared mem_config related INIT DONE */
}
/*
- * Request iopl priviledge for all RPL, returns 0 on success
+ * Request iopl privilege for all RPL, returns 0 on success
*/
static int
rte_eal_iopl_init(void)
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");
/* the directories are locked during eal_hugepage_info_init */
eal_hugedirs_unlock();
-
+
if (rte_eal_memzone_init() < 0)
rte_panic("Cannot init memzone\n");
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);
RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
rte_config.master_lcore, (int)thread_id);
+ if (rte_eal_dev_init(PMD_INIT_PRE_PCI_PROBE) < 0)
+ rte_panic("Cannot init pmd devices\n");
+
RTE_LCORE_FOREACH_SLAVE(i) {
/*
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.
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");
+
+ /* Initialize any outstanding devices */
+ if (rte_eal_dev_init(PMD_INIT_POST_PCI_PROBE) < 0)
+ rte_panic("Cannot init pmd devices\n");
+
return fctret;
}
git.droids-corp.org / dpdk.git / blobdiff