Hello Azeem_intel:
Thank you very much for your thoughtful reply!
First of all I want to apologize, the example I gave is indeed about 5th Gen Xeon (not 4th Gen Xeon) . But there are still many examples using 4th Gen Xeon. Such as:
"Intel® Data Streaming Accelerator (DSA)DPDK-DMA Packet Copying with IntelDSA on 4th Gen Intel® Xeon® ScalableProcessors"
"Intel® Data Streaming Accelerator (DSA) –Offloading Memory Copying in VPP by Shared Memory Packet Interface (memif) Plugin with Intel® DSA on 4th Gen Intel® Xeon® Scalable Processors"
"Intel® Data Streaming Accelerator (Intel® DSA) - Calico VPP Multinet with Intel® DSA on 4th Gen Intel® Xeon® Scalable Processor"
According to the System Configurations, the first two used Ubuntu-Server 22.04 and the third one used Ubuntu 22.04.1 LTS.
So I think Ubuntu 22.04 can also use DSA smoothly.
You said I needs to contact OS vendor. But I don't know how to do that, because I am using a free distribution on the Internet, I don’t know how to get technical support.
I think the problem is that I don't have idxd driver as needed.
I found intel/idxd-driver on github, but it said this project will no longer be maintained by Intel.
So I want to ask if this project can be used to install the driver.
And tou give me many command to check the problem, here is the result:
1- Run grep -i vtd /etc/default/grub and grep -i vtx /etc/default/grub
2- Run grep -i vtd /proc/cpuinfo and grep -i vtx /proc/cpuinfo
3- Run dmesg | grep -i prictl or journalctl | grep -i prictl
The result of these three commands is that there is no reply. That is, there is no explicit command indicating that VT-d is disabled.
4- Run lspci -vvv -s 6a:01.0
There is no reply, too.
5- Run dmesg | grep -i idxd
it shows:
[ 817.158224] idxd 0000:75:01.0: Unable to turn on user SVA feature.
[ 817.165738] idxd 0000:75:01.0: Intel(R) Accelerator Device (v100)
[ 817.165936] idxd 0000:f2:01.0: Unable to turn on user SVA feature.
[ 817.168988] idxd 0000:f2:01.0: Intel(R) Accelerator Device (v100)
I reboot with “intel_iommu=on,sm_on” added to the kernel command line to enable, the reuslt of "cat /etc/default/grub" is:
❯ cat /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_iommu=on,sm_on iommu=on"
GRUB_CMDLINE_LINUX=""
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
So the method(update /etc/default/grub file and reboot) doesn't solve the issue.
In general, I still want to ask about how to complete DSA configuration on Ubuntu22.04 system, including information about updating the idxd driver.
I have basically tried the above commands, but they seem to have no results.
It is difficult to filter out the relevant information from the log files you provided earlier. From my general inspection, I feel that there is no content related to idxd.
Thank you again for your help, and I hope you can continue to follow up, thank you very much!
Best Regards.
