Date: Sun, 5 May 2019 15:47:22 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r347158 - in head: sbin/nvmecontrol sys/dev/nvme Message-ID: <201905051547.x45FlM2G033369@repo.freebsd.org>
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Author: mav Date: Sun May 5 15:47:21 2019 New Revision: 347158 URL: https://svnweb.freebsd.org/changeset/base/347158 Log: Decode Deallocate Logical Block Features. MFC after: 1 week Modified: head/sbin/nvmecontrol/identify.c head/sys/dev/nvme/nvme.h Modified: head/sbin/nvmecontrol/identify.c ============================================================================== --- head/sbin/nvmecontrol/identify.c Sun May 5 14:14:05 2019 (r347157) +++ head/sbin/nvmecontrol/identify.c Sun May 5 15:47:21 2019 (r347158) @@ -52,7 +52,7 @@ print_namespace(struct nvme_namespace_data *nsdata) uint32_t i; uint32_t lbaf, lbads, ms, rp; uint8_t thin_prov, ptype; - uint8_t flbas_fmt; + uint8_t flbas_fmt, t; thin_prov = (nsdata->nsfeat >> NVME_NS_DATA_NSFEAT_THIN_PROV_SHIFT) & NVME_NS_DATA_NSFEAT_THIN_PROV_MASK; @@ -125,6 +125,16 @@ print_namespace(struct nvme_namespace_data *nsdata) NVME_NS_DATA_FPI_PERC_MASK); } else printf("Not Supported\n"); + t = (nsdata->dlfeat >> NVME_NS_DATA_DLFEAT_READ_SHIFT) & + NVME_NS_DATA_DLFEAT_READ_MASK; + printf("Deallocate Logical Block: Read %s%s%s\n", + (t == NVME_NS_DATA_DLFEAT_READ_NR) ? "Not Reported" : + (t == NVME_NS_DATA_DLFEAT_READ_00) ? "00h" : + (t == NVME_NS_DATA_DLFEAT_READ_FF) ? "FFh" : "Unknown", + (nsdata->dlfeat >> NVME_NS_DATA_DLFEAT_DWZ_SHIFT) & + NVME_NS_DATA_DLFEAT_DWZ_MASK ? ", Write Zero" : "", + (nsdata->dlfeat >> NVME_NS_DATA_DLFEAT_GCRC_SHIFT) & + NVME_NS_DATA_DLFEAT_GCRC_MASK ? ", Guard CRC" : ""); printf("Optimal I/O Boundary (LBAs): %u\n", nsdata->noiob); printf("Globally Unique Identifier: "); for (i = 0; i < sizeof(nsdata->nguid); i++) Modified: head/sys/dev/nvme/nvme.h ============================================================================== --- head/sys/dev/nvme/nvme.h Sun May 5 14:14:05 2019 (r347157) +++ head/sys/dev/nvme/nvme.h Sun May 5 15:47:21 2019 (r347158) @@ -349,6 +349,20 @@ #define NVME_NS_DATA_FPI_SUPP_SHIFT (7) #define NVME_NS_DATA_FPI_SUPP_MASK (0x1) +/** Deallocate Logical Block Features */ +/* deallocated logical block read behavior */ +#define NVME_NS_DATA_DLFEAT_READ_SHIFT (0) +#define NVME_NS_DATA_DLFEAT_READ_MASK (0x07) +#define NVME_NS_DATA_DLFEAT_READ_NR (0x00) +#define NVME_NS_DATA_DLFEAT_READ_00 (0x01) +#define NVME_NS_DATA_DLFEAT_READ_FF (0x02) +/* supports the Deallocate bit in the Write Zeroes */ +#define NVME_NS_DATA_DLFEAT_DWZ_SHIFT (3) +#define NVME_NS_DATA_DLFEAT_DWZ_MASK (0x01) +/* Guard field for deallocated logical blocks is set to the CRC */ +#define NVME_NS_DATA_DLFEAT_GCRC_SHIFT (4) +#define NVME_NS_DATA_DLFEAT_GCRC_MASK (0x01) + /** lba format support */ /* metadata size */ #define NVME_NS_DATA_LBAF_MS_SHIFT (0)
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