No Spin Zone. SSDs Rock Storage Interfaces. Tom Hackett. Product Marketing Director, Verification IP Cadence

Transcription

1 No Spin Zone SSDs Rock Storage Interfaces Tom Hackett Product Marketing Director, Verification IP Cadence Santa Clara, CA 1

2 Agenda A New Era in Computing Essential role of Solid State Drives (SSDs) Hard Disk Drive and SSD implementations The major SSD protocols Expected verification project starts for storage interfaces Traditional application of Verification IP (VIP) to storage verification New applications of VIP for SSD verification Santa Clara, CA 2

3 Jan 2008 MacBook Air Ultrabooks A New Era in Computing Intel Jan PC Industry responds Jan ipad Santa Clara, CA 3

4 Solid State Drives Essential to Ultrabook Alure SSDs = Super thin, Instant on, Blazing speed, Extended battery life Santa Clara, CA 4

5 SSDs Also Key to Cloud Implementation Delivering needed Latency, Bandwidth, Power, Reliability, Cost Santa Clara, CA 5

6 HDD and SSD Implementations Hard Disk Drive SSD Plug In SSD Integrated Host Bus Adaptor Host Bus Adaptor Host Bus Adaptor HDD Controller SDD Controller SDD Controller HDD SSD SSD Santa Clara, CA 6

7 Hard Disk Interface Stack Consumer Enterprise Driver Host Bus Adaptor HDD Controller 1) Driver I/F AHCI 2) Bus I/F 3) Drive I/F 4) Media I/F Proprietary 1) Driver I/F SCSI 2) Bus I/F 3) Drive I/F SAS 4) Media I/F Proprietary Santa Clara, CA 7 HDD Reference:

8 SSD Interface Stack Plug Compatible Consumer Enterprise Driver Host Bus Adaptor SDD Controller 1) Driver I/F AHCI 2) Bus I/F 3) Drive I/F 4) Media I/F ONFI 1) Driver I/F SCSI 2) Bus I/F 3) Drive I/F SAS 4) Media I/F ONFI Easy to implement but performance is limited by the drive I/F protocol Santa Clara, CA 8 SSD Reference:

9 SSD Interface Stack Integrated Driver Host Bus Adaptor SDD Controller Consumer 1) Driver I/F AHCI NVMe 2) Bus I/F - Express 3) N/A 4) Media I/F ONFI Enterprise 1) Driver I/F SOP/PQI 2) Bus I/F 3) N/A 4) Media I/F ONFI Santa Clara, CA Unlocks full SSD performance 9 SSD Reference:

10 Three Major SSD Interface Protocols Consumer Express No driver change required Limited command queues NMV Express (NVMe) New driver needed Large command queues Enterprise SCSI over PCI Express (SOP/PQI) New driver needed Incorporates rich SCSI command set Santa Clara, CA 10

11 Expected Verification Project Starts SAS SOP New verification project starts relatively stable NVM express express step evolution 2017 Santa Clara, CA 11

12 Consumer SSD I/F Details Express & NVMe Root Complex TLPs EP Express Host AHCI Interface Host Mux or Device Detected (IFDet) -Express Connector HDD Controller ATA Command Set HDD OR SSD Controller ATA Command Set SSD/Flash AHCI Intf/NVMe Intf SSD Controller ( EP) ATA/NVMe Command Set OR Flash Interface (ONFI, etc.) Flash Interface (ONFI, etc.) SSD/Flash Santa Clara, CA 12 Hard Disk Drive SSD Plug In SSD Integrated

13 Traditional VIP Application Injected Frames with Random Field Values EP AHCI Interface Express Host Host VIP Mux Testbench Scoreboard or Device Detected (IFDet) -Express Connector Recovered Frames SSD Controller Flash Interface ATA Command Set (ONFI, etc.) SSD/Flash Santa Clara, CA 13

14 Enhanced VIP Application AHCI Memory Mapped Commands & Data EP Express Host AHCI Interface Host VIP Mux or Device Detected (IFDet) -Express Connector Testbench Scoreboard Recovered Commands & Data AHCI Intf/NVMe Intf SSD Controller ( EP) Flash Interface ATA/NVMe Command Set SSD/Flash (ONFI, etc.) Santa Clara, CA 14

15 SW-Driven VIP Application SW Driver EP Express Host Hardware Abstraction Layer Commands & Data Driver performs scoreboard AHCI Interface Host VIP Mux or Device Detected (IFDet) -Express Connector Recovered Commands & Data AHCI Intf/NVMe Intf SSD Controller ( EP) Flash Interface ATA/NVMe Command Set (ONFI, etc.) SSD/Flash Santa Clara, CA 15

16 Summary The PC industry is making a high stakes transition to ultrabooks SSDs are essential to that transition SSDs are also key to delivering Cloud content 3 types of storage designs will need to be verified: traditional HDDs, Plug-in SSDs, and integrated SSDs The 3 key SSD protocols are Express, NVMe, and SOP The SSD protocols will rapidly dominate new verification project starts VIP will be used to raise the abstraction and effectiveness of SSD verification, first to the command level, and then to the SW driver level Santa Clara, CA 16

17 Thank You! Santa Clara, CA 17