#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 */
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:
" (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_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"
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},
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;
}
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)
+ if (rte_eal_dev_init(PMD_INIT_PRE_PCI_PROBE) < 0)
rte_panic("Cannot init pmd devices\n");
RTE_LCORE_FOREACH_SLAVE(i) {
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