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Groups > linux.kernel > #1717981
| From | "Martin K. Petersen" <martin.petersen@oracle.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v4 00/14] mpt3sas driver NVMe support: |
| Date | 2017-08-23 04:20 +0200 |
| Message-ID | <uhtqW-2RF-9@gated-at.bofh.it> (permalink) |
| References | <ugV5T-4XE-13@gated-at.bofh.it> |
| Organization | Oracle Corporation |
Suganath, > mpt3sas: SGL to PRP Translation for I/Os to NVMe devices I'm still confused about this patch. - I don't understand why you go through all these hoops to decide whether to use PRPs or IEEE scatterlists. If the firmware translation is slow, why even bother with the SG format in the first place? Set the max I/O size to match MDTS and you're done. - What's the benefit of using SG for regular I/O commands? - If the unmap translation in firmware is slow, why don't you translate WRITE SAME/w UNMAP set to DSM DEALLOCATE without requiring applications to do encapsulated passthrough? Also make sure you attribute your patches correctly (From: root <root@dhcp-135-24-192-103.dhcp.avagotech.net>). And you don't need that long CC: list. Just send the patch series to linux-scsi@vger.kernel.org. Thanks! -- Martin K. Petersen Oracle Linux Engineering
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[PATCH v4 00/14] mpt3sas driver NVMe support: Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 13/14] mpt3sas: Update mpt3sas driver version. Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 05/14] mpt3sas: API 's to support NVMe drive addition to SML Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 04/14] mpt3sas: Added support for nvme encapsulated request message. Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 11/14] mpt3sas: NVMe drive support for BTDHMAPPING ioctl command and log info Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 02/14] mpt3sas: Add nvme device support in slave alloc, target alloc and probe Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 10/14] mpt3as: Add-Task-management-debug-info-for-NVMe-drives. Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 09/14] mpt3sas: scan and add nvme device after controller reset Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 12/14] mpt3sas: Fix nvme drives checking for tlr. Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 14/14] mpt3sas: Fix sparse warning Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 06/14] mpt3sas: API's to remove nvme drive from sml Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 03/14] mpt3sas: SGL to PRP Translation for I/Os to NVMe devices Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 08/14] mpt3sas: Set NVMe device queue depth as 128 Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 [PATCH v4 07/14] mpt3sas: Handle NVMe PCIe device related events generated from firmware. Suganath Prabu S <suganath-prabu.subramani@broadcom.com> - 2017-08-21 15:40 +0200 Re: [PATCH v4 00/14] mpt3sas driver NVMe support: "Martin K. Petersen" <martin.petersen@oracle.com> - 2017-08-23 04:20 +0200
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