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* Re: [dts] [PATCH V2] tests/external_memory:VFIO module parameter increase the allowed limit
  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
  1 sibling, 0 replies; 3+ messages in thread
From: Chen, LingliX @ 2021-03-12  9:17 UTC (permalink / raw)
  To: dts

[-- Attachment #1: Type: text/plain, Size: 314 bytes --]

> -----Original Message-----
> From: Chen, LingliX
> Sent: Saturday, March 13, 2021 1:37 AM
> To: dts@dpdk.org
> Cc: Chen, LingliX <linglix.chen@intel.com>
> Subject: [dts][PATCH V2] tests/external_memory:VFIO module parameter
> increase the allowed limit

Tested-by: Chen Lingli <linglix.chen@intel.com>

[-- Attachment #2: TestExternalMemory.log --]
[-- Type: application/octet-stream, Size: 11602 bytes --]

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [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


^ permalink raw reply	[flat|nested] 3+ messages in thread

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

> 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

Applied, thanks

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-03-15  7:27 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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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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