[dpdk-stable] patch 'test/mem: fix page size for external memory' has been queued to stable release 19.11.9

[Christian Ehrhardt]

Hi,

FYI, your patch has been queued to stable release 19.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/19/21. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/cpaelzer/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/cpaelzer/dpdk-stable-queue/commit/e30aac50c141a585b3ba5a03daddd1359553d2ea

Thanks.

Christian Ehrhardt <christian.ehrhardt at canonical.com>

---
>From e30aac50c141a585b3ba5a03daddd1359553d2ea Mon Sep 17 00:00:00 2001
From: Nithin Dabilpuram <ndabilpuram at marvell.com>
Date: Fri, 15 Jan 2021 13:02:43 +0530
Subject: [PATCH] test/mem: fix page size for external memory

[ upstream commit 52db57db0536bf20cbb50464ca4c18b0c9fde4e4 ]

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.

Fixes: b270daa43b3d ("test: support external memory")

Signed-off-by: Nithin Dabilpuram <ndabilpuram at marvell.com>
Acked-by: Anatoly Burakov <anatoly.burakov at intel.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 7eb81f6448..5edf88b9f6 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 @@ fail:
 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;
-- 
2.31.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-05-17 17:40:29.722903397 +0200
+++ 0003-test-mem-fix-page-size-for-external-memory.patch	2021-05-17 17:40:29.091808846 +0200
@@ -1 +1 @@
-From 52db57db0536bf20cbb50464ca4c18b0c9fde4e4 Mon Sep 17 00:00:00 2001
+From e30aac50c141a585b3ba5a03daddd1359553d2ea Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 52db57db0536bf20cbb50464ca4c18b0c9fde4e4 ]
+
@@ -16 +17,0 @@
-Cc: stable at dpdk.org