- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
I am working on some potential software integration using DSA. While loading into linux kernel 6.3, from dmesg I noticed this line "Unable to turn on user SVA feature". I have been following the steps described in "data-streaming-accelerator-user-guide" and built the kernel with the below configuration switch turned on
CONFIG_INTEL_IOMMU=y CONFIG_INTEL_IOMMU_SVM=y CONFIG_INTEL_IOMMU_DEFAULT_ON=y CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON=y
CONFIG_INTEL_IDXD=m
CONFIG_INTEL_IDXD_SVM=y
CONFIG_INTEL_IDXD_PERFMON=y
I have also added parameter “intel_iommu=on,sm_on” to the kernel command line but still same problem.
What I do noticed is that on my system, pasid is not enabled for DSA.
$ cat /sys/bus/dsa/devices/dsa0/pasid_enabled
0
And Page Request Interface capabilities is not enabled.
$ lspci -vvv -s 6a:01.0
...
Capabilities: [220 v1] Address Translation Service (ATS)
ATSCap: Invalidate Queue Depth: 00
ATSCtl: Enable+, Smallest Translation Unit: 00
Capabilities: [230 v1] Process Address Space ID (PASID)
PASIDCap: Exec- Priv+, Max PASID Width: 14
PASIDCtl: Enable+ Exec- Priv+
Capabilities: [240 v1] Page Request Interface (PRI)
PRICtl: Enable- Reset-
PRISta: RF- UPRGI- Stopped+
Page Request Capacity: 00000200, Page Request Allocation: 00000000
Kernel driver in use: idxd
Kernel modules: idxd
...
My understanding is that PASID depends on PRI and SVM depends onPASID. Can you please let me know how to enable Page Request Interface capability?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello haoxiangbd,
Thank you for your response
In this case, we need to inform you the support for the processor you have is provided over a different channel. The way you can receive support for this processor is by opening a support ticket through our IPS channel. Please find the required information below:
Intel® Premier Support (IPS)
https://www.intel.com/content/www/us/en/design/support/ips/training/welcome.html
Best regards,
Victor G.
Intel Technical Support Technician
Link Copied
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello haoxiangbd,
Thank you for posting on the Intel® communities.
To move forward with your request, please provide the information below:
- The exact motherboard model and processor that you are currently working with.
- You mentioned that you are using Linux; therefore, we will need to know your exact Linux distribution.
- Are you requesting this information on behalf of a company? If yes, please provide as many details as possible about the company that you work for.
Best regards,
Victor G.
Intel Technical Support Technician
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
$dmidecode -t 2
# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.5.0 present.
# SMBIOS implementations newer than version 3.3.0 are not
# fully supported by this version of dmidecode.
Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
Manufacturer: Inspur
Product Name: SA5280D7
Version: YZMB-02666-106
Serial Number: MBN304S40040Y01
Asset Tag: 222539873
Features:
Board is a hosting board
Board is replaceable
Location In Chassis: Part Component
Chassis Handle: 0x0003
Type: Motherboard
Contained Object Handles: 0
$lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
Address sizes: 52 bits physical, 57 bits virtual
CPU(s): 192
On-line CPU(s) list: 0-191
Thread(s) per core: 2
Core(s) per socket: 48
Socket(s): 2
NUMA node(s): 2
Vendor ID: GenuineIntel
CPU family: 6
Model: 143
Model name: Intel(R) Xeon(R) Platinum 8457C
Stepping: 6
CPU MHz: 2600.000
CPU max MHz: 3800.0000
CPU min MHz: 800.0000
BogoMIPS: 5200.00
Virtualization: VT-x
L1d cache: 48K
L1i cache: 32K
L2 cache: 2048K
L3 cache: 99840K
NUMA node0 CPU(s): 0-47,96-143
NUMA node1 CPU(s): 48-95,144-191
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cat_l2 cdp_l3 invpcid_single intel_ppin cdp_l2 ssbd mba ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb intel_pt avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local split_lock_detect avx_vnni avx512_bf16 wbnoinvd dtherm ida arat pln pts hwp hwp_act_window hwp_epp hwp_pkg_req avx512vbmi umip pku ospke waitpkg avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg tme avx512_vpopcntdq rdpid bus_lock_detect cldemote movdiri movdir64b enqcmd fsrm md_clear serialize tsxldtrk pconfig arch_lbr ibt amx_bf16 avx512_fp16 amx_tile amx_int8 flush_l1d arch_capabilities
1. Motherboard and CPU information above.
2. I build my own kernel based on v5.18-rc3 tag. It's the upstream community version.
3. This is requesting for Bytedance.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello haoxiangbd,
Thank you for your response
In this case, we need to inform you the support for the processor you have is provided over a different channel. The way you can receive support for this processor is by opening a support ticket through our IPS channel. Please find the required information below:
Intel® Premier Support (IPS)
https://www.intel.com/content/www/us/en/design/support/ips/training/welcome.html
Best regards,
Victor G.
Intel Technical Support Technician
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello haoxiangbd,
Thank you for your response.
We are glad to know that you've found our information helpful. Since the thread is now solved, we will proceed to close it.
If you need any additional information, please submit a new question as this thread will no longer be monitored.
Best regards,
Victor G.
Intel Technical Support Technician
![](/skins/images/B7BA37F9CE4B52FF7CAE1FB0388839C8/responsive_peak/images/icon_anonymous_message.png)
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page