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env/dpdk: support memsegs without phys addr assigned

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If those are encountered, SPDK will get physical
addreses by itself (either IOVAs from vfio or
real physical addreses from /proc/self/pagemap).

Change-Id: I321892f7dfb26054087a86cd24502efff05883ea
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/404138
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Dariusz Stojaczyk 2018-03-16 17:40:49 +01:00 committed by Jim Harris
parent aa8e7002ba
commit c45669cf89
2 changed files with 19 additions and 2 deletions
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14
lib/env_dpdk/env.c
View File

@ -45,11 +45,21 @@
static uint64_t
virt_to_phys(void *vaddr)
{
uint64_t ret;
#if RTE_VERSION >= RTE_VERSION_NUM(17, 11, 0, 3)
return rte_malloc_virt2iova(vaddr);
ret = rte_malloc_virt2iova(vaddr);
if (ret != RTE_BAD_IOVA) {
return ret;
}
#else
return rte_malloc_virt2phy(vaddr);
ret = rte_malloc_virt2phy(vaddr);
if (ret != RTE_BAD_PHYS_ADDR) {
return ret;
}
#endif
return spdk_vtophys(vaddr);
}
void *

7
lib/env_dpdk/vtophys.c
View File

@ -208,6 +208,13 @@ vtophys_get_paddr_memseg(uint64_t vaddr)
if (vaddr >= (uintptr_t)seg->addr &&
vaddr < ((uintptr_t)seg->addr + seg->len)) {
paddr = seg->phys_addr;
#if RTE_VERSION >= RTE_VERSION_NUM(17, 11, 0, 3)
if (paddr == RTE_BAD_IOVA) {
#else
if (paddr == RTE_BAD_PHYS_ADDR) {
#endif
return SPDK_VTOPHYS_ERROR;
}
paddr += (vaddr - (uintptr_t)seg->addr);
return paddr;
}