HI: I am following the topic The bandwidth of of virtual ethernet over PCIe between two xaviers is low - #19 by WayneWWW. to test RC mode and EP mode DMA function
1 When I connect RC Xavier and EP Xavier directly with Cable,Two Mode (RC & EP) DMA works fine.
2 when connect RC an EP with PEX88096 RDK board as pcie switch ,only RC mode DMA work, EP mod DMA would report an err as below
[ 509.480007] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x13fffff000, fsynr=0x240011, cb=3, sid=91(0x5b - PCIE5), pgd=0, pud=0, pmd=0, pte=0
[ 509.480657] mc-err: vpr base=0:c6000000, size=20, ctrl=3, override:(a01a8340, fcee10c1, 1, 0)
[ 509.480803] mc-err: (255) csw_pcie5w: MC request violates VPR requirements
[ 509.480939] mc-err: status = 0x0ff740e3; addr = 0xffffffff00; hi_adr_reg=008
[ 509.481053] mc-err: secure: yes, access-type: write
[ 509.481144] mc-err: mcerr: unknown intr source intstatus = 0x00000000, intstatus_1 = 0x00000000
[ 509.481311] mc-err: mcerr: unknown intr source intstatus = 0x00000000, intstatus_1 = 0x00000000
[ 514.716349] tegra_ep_mem 0005:0b:00.0: DMA write operation timed out no interrupt
[ 514.716526] tegra_ep_mem 0005:0b:00.0: something is wrong in write
The bus topology is shown below：
-+-[0005:00]---00.0-[01-ff]----00.0-[02-20]--+-00.0-[03-1c]----00.0-[04-1c]----10.0-[05-1c]----00.0-[06-1c]--+-00.0-[07-0b]----00.0-[08-0b]--+-00.0-[09]----00.0 Xilinx Corporation Device 9038
| | | +-08.0-[0a]--
| | | \-10.0-[0b]----00.0 NVIDIA Corporation Device 1ad5
| | +-04.0-[0c-0e]----00.0-[0d-0e]----10.0-[0e]--
| | +-08.0-[0f-17]----00.0-[10-17]--+-00.0-[11]--
| | | +-04.0-[12]--
| | | +-08.0-[13]--
| | | +-10.0-[14]--
| | | +-14.0-[15]--
| | | +-18.0-[16]--
| | | \-1c.0-[17]--
| | +-0c.0-[18-1b]----00.0-[19-1b]--+-14.0-[1a]--
| | | \-15.0-[1b]--
| | \-1c.0-[1c]----00.0 LSI Logic / Symbios Logic Device c010
| +-04.0-[1d-1f]----00.0-[1e-1f]----00.0-[1f]--
| \-1c.0-[20]----00.0 LSI Logic / Symbios Logic Device c010
+-[0001:00]---00.0-[01-ff]----00.0 Marvell Technology Group Ltd. Device 9171
\-[0000:00]-
I’m using jetpcak 4.5.1 Code
What should I do to fix the Err ?
Regards,