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dma/idxd appends extra characters which makes test-dma-perf to fail.

Bug 1268 [email protected] 1 participant 2 messages Jul 25, 2023 – Jul 31, 2023

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https://bugs.dpdk.org/show_bug.cgi?id=1268

Bug ID: 1268
Summary: dma/idxd appends extra characters which makes
test-dma-perf to fail.
Product: DPDK
Version: 23.07
Hardware: x86
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: other
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---

Created attachment 256
--> https://bugs.dpdk.org/attachment.cgi?id=256&action=edit
name change before-after

setup details:
1. CPU: Intel(R) Xeon(R) Gold 6421N
2. OS: Ubuntu 22.04.2 LTS
3. gcc: gcc version 11.3.0 (Ubuntu 11.3.0-1ubuntu1~22.04.1)
4. DPDk version: https://git.dpdk.org/dpdk/tag/?id=v23.07-rc4
5. DSA Acceleration: f2:01.0 System peripheral: Intel Corporation Device 0b25
6. application: ./build/app/dpdk-test-dma-perf
7. arguments: -l8-31 --log-level=pmd,8 -a 0000:f2:01.0 --config app/test-dma-perf/my.ini
8. driver used: vfio-pci on PF

INI config file:

```
[case1]
type=DMA_MEM_COPY
mem_size=10
buf_size=64,64,0,ADD
dma_ring_size=1024
kick_batch=32
src_numa_node=0
dst_numa_node=0
cache_flush=0
test_seconds=10
lcore_dma=lcore10@0000:f2:01.0
#lcore_dma=lcore10@0000:00:04.2, lcore11@0000:00:04.3
eal_args=--in-memory --file-prefix=test-dma-hw
```

issue logs:

```
Running scenario 1
Error: Fail to find DMA 0000:f2:01.0.
Not enough dmadevs (0) for all workers (1).
Stopping dmadev 0
dma: Device 0 already stopped.
No proper operation for variable entry.
```

reason for failure: the device name is populated from idxd_pci.c as 0000:f2:01.0-q0

actions tried:
1. modified by forcing --proc-type=primary. same issue
2. modified name in ini 0000:f2:01.0-q0, worked.

Checking the driver/dma/idxd_pci.c show cases the issue comes because the application is identified as RTE_SECONDARY. attaching screen shot for the same.

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author
#1 lore raw

https://bugs.dpdk.org/show_bug.cgi?id=1268

Thomas Monjalon ([email protected]) changed:

What |Removed |Added
----------------------------------------------------------------------------

         Resolution|---                         |FIXED
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #7 from Thomas Monjalon ([email protected]) --- Resolved in http://git.dpdk.org/dpdk/commit/?id=4334b7b405

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