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    <body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - [DPDK-23.07] runtime_vf_queue_number_kernel/set_valid_vf_queue_num_command_line: failed information when starting testpmd"
   href="https://bugs.dpdk.org/show_bug.cgi?id=1246">1246</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[DPDK-23.07] runtime_vf_queue_number_kernel/set_valid_vf_queue_num_command_line: failed information when starting testpmd
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DPDK
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>23.07
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>UNCONFIRMED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>testpmd
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dev@dpdk.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>songx.jiale@intel.com
          </td>
        </tr>

        <tr>
          <th>Target Milestone</th>
          <td>---
          </td>
        </tr></table>
      <p>
        <div class="bz_comment_block">
          <pre class="bz_comment_text">[Environment]
DPDK version: 
DPDK 23.07-rc0 66f7ee3f7ab1a7d0295464ab236d4ada08eedee3
Other software versions: N/A.
OS: Ubuntu 22.04.2 LTS/5.15.0-72-generic
Compiler: gcc version 11.3.0
Hardware platform: Intel(R) Xeon(R) Gold 6140M CPU @ 2.30GHz
NIC hardware: Ethernet Controller E810-C for SFP 1593
NIC driver: ice-1.12.0_rc130
NIC firmware: 4.30 0x80018e16 1.3384.0

[Test Setup]
1. blind 1 port to vfio-pci
./usertools/dpdk-devbind.py -b vfio-pci 0000:ca:00.0
2. launch testpmd
   x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0xf -n 4 -- -i 
[Show the output from the previous commands.]
There is failed information when starting testpmd.

******
cdx: cdx_scan(): opendir failed: No such file or directory
EAL: Scan for (cdx) bus failed.
******
[Expected Result]
There is no failed information when starting testpmd.

[Regression]
Is this issue a regression: (Y/N) Y

commit 45ef232af515b94ccd3c49bc100110aaef4641f1 (HEAD, refs/bisect/bad)
Author: Nipun Gupta <<a href="mailto:nipun.gupta@amd.com">nipun.gupta@amd.com</a>>
Date:   Wed Jun 7 09:54:22 2023 +0530

    bus/cdx: introduce AMD CDX bus

    AMD CDX bus supports multiple type of devices, which can be
    exposed to user-space via vfio-cdx.

    vfio-cdx provides the MMIO IO_MEMORY regions as well as the
    DMA interface for the device (IOMMU).

    This support aims to enable the DPDK to support the cdx
    devices in user-space using VFIO interface.

    Signed-off-by: Nipun Gupta <<a href="mailto:nipun.gupta@amd.com">nipun.gupta@amd.com</a>>
    Acked-by: Ferruh Yigit <<a href="mailto:ferruh.yigit@amd.com">ferruh.yigit@amd.com</a>>

[Stack Trace or Log]
impact case:
runtime_vf_queue_number_kernel/set_valid_vf_queue_num_command_line
ice_iavf_fdir/stress_kill_vf_process_create_new_rule
          </pre>
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