Searched hist:342716 (Results 1 - 4 of 4) sorted by path
| /freebsd-11-stable/sys/dev/mrsas/ | ||
| H A D | mrsas.c | diff 342716 Thu Jan 03 07:48:48 MST 2019 kadesai MFC r342059-r342069 r342059 This patch will add support for next generation(SAS3.5) of Tri mode(SAS, SATA, NVMe) MegaRAID adapters. r342060 This patch will add support for new Dynamic RaidMap to have different sizes for different number of supported VDs for SAS3.5 MegaRAID adapters. r342061 This patch will add support for divert bitmap in RAID map. Divert bitmap is supported for SAS3.5 adapters only. r342062 This patch will add new interface to support more than 256 JBODs. r342063 Detect sequential Write IOs and pass the hint that it is part of sequential stream to help HBA Firmware do the Full Stripe Writes. For read IOs on certain RAID volumes like Read Ahead volumes,this will help driver to send it to Firmware even if the IOs can potentially be sent to hardware directly (called fast path) bypassing firmware. Design: 8 streams are maintained per RAID volume as per the combined firmware/driver design. When there is no stream detected the LRU stream is used for next potential stream and LRU/MRU map is updated to make this as MRU stream. Every time a stream is detected the MRU map is updated to make the current stream as MRU stream. r342064 To improve RAID 1/10 Write performance, OS drivers need to issue the required Write IOs as Fast Path IOs (after the appropriate checks allowing Fast Path to be used) to the appropriate physical drives (translated from the OS logical IO) and wait for all Write IOs to complete. Design: A write IO on RAID volume will be examined if it can be sent in Fast Path based on IO size and starting LBA and ending LBA falling on to a Physical Drive boundary. If the underlying RAID volume is a RAID 1/10, driver issues two fast path write IOs one for each corresponding physical drive after computing the corresponding start LBA for each physical drive. Both write IOs will have the same payload and are posted to HW such that replies land in the same reply queue. If there are no resources available for sending two IOs, driver will send the original IO from upper layer to RAID volume through the Firmware. When both IOs are completed by HW, the resources will be released and SCSI IO completion handler will be called. r342065 This patch will add support for new DCMD to get PD information and a single data structure to specify LD and JBOD. r342066 This patch will add support for NVME PRPs creation by driver for fastpath capable IOs. NVME specification supports specific type of scatter gather list called as PRP (Physical Region Page) for IO data buffers. Since NVME drive is connected behind SAS3.5 tri-mode adapter, MegaRAID driver/firmware has to convert OS SGLs in native NVMe PRP format. For IOs sent to firmware, MegaRAID firmware does this job of OS SGLs to PRP translation and send PRPs to backend NVME device. For fastpath IOs, driver will do this OS SGLs to PRP translation. r342067 Change IOC INIT wait time to 180 secs to keep it inline with timeout used by internal DCMDs. r342068 This patch will increase debug level as current logging level has very minimal prints and even few important messages will not get logged. r342069 Driver version upgrade 07.708.02.00-fbsd |
| H A D | mrsas.h | diff 342716 Thu Jan 03 07:48:48 MST 2019 kadesai MFC r342059-r342069 r342059 This patch will add support for next generation(SAS3.5) of Tri mode(SAS, SATA, NVMe) MegaRAID adapters. r342060 This patch will add support for new Dynamic RaidMap to have different sizes for different number of supported VDs for SAS3.5 MegaRAID adapters. r342061 This patch will add support for divert bitmap in RAID map. Divert bitmap is supported for SAS3.5 adapters only. r342062 This patch will add new interface to support more than 256 JBODs. r342063 Detect sequential Write IOs and pass the hint that it is part of sequential stream to help HBA Firmware do the Full Stripe Writes. For read IOs on certain RAID volumes like Read Ahead volumes,this will help driver to send it to Firmware even if the IOs can potentially be sent to hardware directly (called fast path) bypassing firmware. Design: 8 streams are maintained per RAID volume as per the combined firmware/driver design. When there is no stream detected the LRU stream is used for next potential stream and LRU/MRU map is updated to make this as MRU stream. Every time a stream is detected the MRU map is updated to make the current stream as MRU stream. r342064 To improve RAID 1/10 Write performance, OS drivers need to issue the required Write IOs as Fast Path IOs (after the appropriate checks allowing Fast Path to be used) to the appropriate physical drives (translated from the OS logical IO) and wait for all Write IOs to complete. Design: A write IO on RAID volume will be examined if it can be sent in Fast Path based on IO size and starting LBA and ending LBA falling on to a Physical Drive boundary. If the underlying RAID volume is a RAID 1/10, driver issues two fast path write IOs one for each corresponding physical drive after computing the corresponding start LBA for each physical drive. Both write IOs will have the same payload and are posted to HW such that replies land in the same reply queue. If there are no resources available for sending two IOs, driver will send the original IO from upper layer to RAID volume through the Firmware. When both IOs are completed by HW, the resources will be released and SCSI IO completion handler will be called. r342065 This patch will add support for new DCMD to get PD information and a single data structure to specify LD and JBOD. r342066 This patch will add support for NVME PRPs creation by driver for fastpath capable IOs. NVME specification supports specific type of scatter gather list called as PRP (Physical Region Page) for IO data buffers. Since NVME drive is connected behind SAS3.5 tri-mode adapter, MegaRAID driver/firmware has to convert OS SGLs in native NVMe PRP format. For IOs sent to firmware, MegaRAID firmware does this job of OS SGLs to PRP translation and send PRPs to backend NVME device. For fastpath IOs, driver will do this OS SGLs to PRP translation. r342067 Change IOC INIT wait time to 180 secs to keep it inline with timeout used by internal DCMDs. r342068 This patch will increase debug level as current logging level has very minimal prints and even few important messages will not get logged. r342069 Driver version upgrade 07.708.02.00-fbsd |
| H A D | mrsas_cam.c | diff 342716 Thu Jan 03 07:48:48 MST 2019 kadesai MFC r342059-r342069 r342059 This patch will add support for next generation(SAS3.5) of Tri mode(SAS, SATA, NVMe) MegaRAID adapters. r342060 This patch will add support for new Dynamic RaidMap to have different sizes for different number of supported VDs for SAS3.5 MegaRAID adapters. r342061 This patch will add support for divert bitmap in RAID map. Divert bitmap is supported for SAS3.5 adapters only. r342062 This patch will add new interface to support more than 256 JBODs. r342063 Detect sequential Write IOs and pass the hint that it is part of sequential stream to help HBA Firmware do the Full Stripe Writes. For read IOs on certain RAID volumes like Read Ahead volumes,this will help driver to send it to Firmware even if the IOs can potentially be sent to hardware directly (called fast path) bypassing firmware. Design: 8 streams are maintained per RAID volume as per the combined firmware/driver design. When there is no stream detected the LRU stream is used for next potential stream and LRU/MRU map is updated to make this as MRU stream. Every time a stream is detected the MRU map is updated to make the current stream as MRU stream. r342064 To improve RAID 1/10 Write performance, OS drivers need to issue the required Write IOs as Fast Path IOs (after the appropriate checks allowing Fast Path to be used) to the appropriate physical drives (translated from the OS logical IO) and wait for all Write IOs to complete. Design: A write IO on RAID volume will be examined if it can be sent in Fast Path based on IO size and starting LBA and ending LBA falling on to a Physical Drive boundary. If the underlying RAID volume is a RAID 1/10, driver issues two fast path write IOs one for each corresponding physical drive after computing the corresponding start LBA for each physical drive. Both write IOs will have the same payload and are posted to HW such that replies land in the same reply queue. If there are no resources available for sending two IOs, driver will send the original IO from upper layer to RAID volume through the Firmware. When both IOs are completed by HW, the resources will be released and SCSI IO completion handler will be called. r342065 This patch will add support for new DCMD to get PD information and a single data structure to specify LD and JBOD. r342066 This patch will add support for NVME PRPs creation by driver for fastpath capable IOs. NVME specification supports specific type of scatter gather list called as PRP (Physical Region Page) for IO data buffers. Since NVME drive is connected behind SAS3.5 tri-mode adapter, MegaRAID driver/firmware has to convert OS SGLs in native NVMe PRP format. For IOs sent to firmware, MegaRAID firmware does this job of OS SGLs to PRP translation and send PRPs to backend NVME device. For fastpath IOs, driver will do this OS SGLs to PRP translation. r342067 Change IOC INIT wait time to 180 secs to keep it inline with timeout used by internal DCMDs. r342068 This patch will increase debug level as current logging level has very minimal prints and even few important messages will not get logged. r342069 Driver version upgrade 07.708.02.00-fbsd |
| H A D | mrsas_fp.c | diff 342716 Thu Jan 03 07:48:48 MST 2019 kadesai MFC r342059-r342069 r342059 This patch will add support for next generation(SAS3.5) of Tri mode(SAS, SATA, NVMe) MegaRAID adapters. r342060 This patch will add support for new Dynamic RaidMap to have different sizes for different number of supported VDs for SAS3.5 MegaRAID adapters. r342061 This patch will add support for divert bitmap in RAID map. Divert bitmap is supported for SAS3.5 adapters only. r342062 This patch will add new interface to support more than 256 JBODs. r342063 Detect sequential Write IOs and pass the hint that it is part of sequential stream to help HBA Firmware do the Full Stripe Writes. For read IOs on certain RAID volumes like Read Ahead volumes,this will help driver to send it to Firmware even if the IOs can potentially be sent to hardware directly (called fast path) bypassing firmware. Design: 8 streams are maintained per RAID volume as per the combined firmware/driver design. When there is no stream detected the LRU stream is used for next potential stream and LRU/MRU map is updated to make this as MRU stream. Every time a stream is detected the MRU map is updated to make the current stream as MRU stream. r342064 To improve RAID 1/10 Write performance, OS drivers need to issue the required Write IOs as Fast Path IOs (after the appropriate checks allowing Fast Path to be used) to the appropriate physical drives (translated from the OS logical IO) and wait for all Write IOs to complete. Design: A write IO on RAID volume will be examined if it can be sent in Fast Path based on IO size and starting LBA and ending LBA falling on to a Physical Drive boundary. If the underlying RAID volume is a RAID 1/10, driver issues two fast path write IOs one for each corresponding physical drive after computing the corresponding start LBA for each physical drive. Both write IOs will have the same payload and are posted to HW such that replies land in the same reply queue. If there are no resources available for sending two IOs, driver will send the original IO from upper layer to RAID volume through the Firmware. When both IOs are completed by HW, the resources will be released and SCSI IO completion handler will be called. r342065 This patch will add support for new DCMD to get PD information and a single data structure to specify LD and JBOD. r342066 This patch will add support for NVME PRPs creation by driver for fastpath capable IOs. NVME specification supports specific type of scatter gather list called as PRP (Physical Region Page) for IO data buffers. Since NVME drive is connected behind SAS3.5 tri-mode adapter, MegaRAID driver/firmware has to convert OS SGLs in native NVMe PRP format. For IOs sent to firmware, MegaRAID firmware does this job of OS SGLs to PRP translation and send PRPs to backend NVME device. For fastpath IOs, driver will do this OS SGLs to PRP translation. r342067 Change IOC INIT wait time to 180 secs to keep it inline with timeout used by internal DCMDs. r342068 This patch will increase debug level as current logging level has very minimal prints and even few important messages will not get logged. r342069 Driver version upgrade 07.708.02.00-fbsd |
Completed in 186 milliseconds