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From: Nithin Dabilpuram <ndabilpuram@marvell.com>
To: <anatoly.burakov@intel.com>, David Christensen <drc@linux.vnet.ibm.com>,
<david.marchand@redhat.com>
CC: <jerinj@marvell.com>, <dev@dpdk.org>, Nithin Dabilpuram
<ndabilpuram@marvell.com>
Date: Wed, 2 Dec 2020 11:16:47 +0530
Message-ID: <20201202054647.3449-5-ndabilpuram@marvell.com>
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Subject: [dpdk-dev] [PATCH v4 4/4] test: change external memory test to use
system page sz
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Currently external memory test uses 4K page size.
VFIO DMA mapping works only with system page granularity.
Earlier it was working because all the contiguous mappings
were coalesced and mapped in one-go which ended up becoming
a lot bigger page. Now that VFIO DMA mappings both in IOVA as VA
and IOVA as PA mode, are being done at memseg list granularity,
we need to use system page size.
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
---
app/test/test_external_mem.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/app/test/test_external_mem.c b/app/test/test_external_mem.c
index 7eb81f6..5edf88b 100644
--- a/app/test/test_external_mem.c
+++ b/app/test/test_external_mem.c
@@ -13,6 +13,7 @@
#include <rte_common.h>
#include <rte_debug.h>
#include <rte_eal.h>
+#include <rte_eal_paging.h>
#include <rte_errno.h>
#include <rte_malloc.h>
#include <rte_ring.h>
@@ -532,8 +533,8 @@ test_extmem_basic(void *addr, size_t len, size_t pgsz, rte_iova_t *iova,
static int
test_external_mem(void)
{
+ size_t pgsz = rte_mem_page_size();
size_t len = EXTERNAL_MEM_SZ;
- size_t pgsz = RTE_PGSIZE_4K;
rte_iova_t iova[len / pgsz];
void *addr;
int ret, n_pages;
--
2.8.4