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* [dts] [PATCH V2] tests/external_memory:VFIO module parameter increase the allowed limit
@ 2021-03-12 17:37 Chen Lingli
  2021-03-12  9:17 ` Chen, LingliX
  2021-03-15  7:27 ` Tu, Lijuan
  0 siblings, 2 replies; 3+ messages in thread
From: Chen Lingli @ 2021-03-12 17:37 UTC (permalink / raw)
  To: dts; +Cc: Chen Lingli

According to commit 016763c21958 ("vfio: do not merge contiguous areas").
VFIO module parameter ``dma_entry_limit`` with a default value of 64K.
When application is out of DMA entries, these limits need to be adjusted to increase the allowed limit .

Signed-off-by: Chen Lingli <linglix.chen@intel.com>
---
V2:modifie comment use git commit description style 
V1:modifie dts

 tests/TestSuite_external_memory.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/TestSuite_external_memory.py b/tests/TestSuite_external_memory.py
index 0224a319..e31b2787 100644
--- a/tests/TestSuite_external_memory.py
+++ b/tests/TestSuite_external_memory.py
@@ -111,6 +111,7 @@ class TestExternalMemory(TestCase):
         Verifier VFIO_PCI and anonymous memory allocation
         """
         self.insmod_modprobe(modename="vfio-pci")
+        self.dut.send_expect("echo 655359 > /sys/module/vfio_iommu_type1/parameters/dma_entry_limit", "#", 10)
 
         self.eal_para = self.dut.create_eal_parameters(cores="1S/4C/1T")
         self.dut.send_expect(r'./%s %s -- --mp-alloc=xmem -i'
-- 
2.17.1


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2021-03-12 17:37 [dts] [PATCH V2] tests/external_memory:VFIO module parameter increase the allowed limit Chen Lingli
2021-03-12  9:17 ` Chen, LingliX
2021-03-15  7:27 ` Tu, Lijuan

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