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NVMe spec version 1.3c says that "serial number" field must be 7-bit ASCII,

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with unused bytes padded by space characters. Same for firmware number and
namespace number.

Discussed with:	imp@
Sponsored by:	iXsystems Inc.
This commit is contained in:
Marcelo Araujo 2018-08-20 04:56:37 +00:00
parent b018ea0174
commit 6b2c20cd98
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=338089
1 changed files with 14 additions and 19 deletions
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33
usr.sbin/bhyve/pci_nvme.c
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@ -253,6 +253,14 @@ static void pci_nvme_io_partial(struct blockif_req *br, int err);
((NVME_STATUS_SCT_MASK << NVME_STATUS_SCT_SHIFT) |\
(NVME_STATUS_SC_MASK << NVME_STATUS_SC_SHIFT))
static __inline void
cpywithpad(char *dst, int dst_size, const char *src, char pad)
{
int len = strnlen(src, dst_size);
memcpy(dst, src, len);
memset(dst + len, pad, dst_size - len);
}
static __inline void
pci_nvme_status_tc(uint16_t *status, uint16_t type, uint16_t code)
{
@ -287,20 +295,8 @@ pci_nvme_init_ctrldata(struct pci_nvme_softc *sc)
cd->vid = 0xFB5D;
cd->ssvid = 0x0000;
cd->mn[0] = 'b';
cd->mn[1] = 'h';
cd->mn[2] = 'y';
cd->mn[3] = 'v';
cd->mn[4] = 'e';
cd->mn[5] = '-';
cd->mn[6] = 'N';
cd->mn[7] = 'V';
cd->mn[8] = 'M';
cd->mn[9] = 'e';
cd->fr[0] = '1';
cd->fr[1] = '.';
cd->fr[2] = '0';
cpywithpad((char *)cd->mn, sizeof(cd->mn), "bhyve-NVMe", ' ');
cpywithpad((char *)cd->fr, sizeof(cd->fr), "1.0", ' ');
/* Num of submission commands that we can handle at a time (2^rab) */
cd->rab = 4;
@ -1715,12 +1711,11 @@ pci_nvme_parse_opts(struct pci_nvme_softc *sc, char *opts)
} else if (!strcmp("ser", xopts)) {
/*
* This field indicates the Product Serial Number in
* 8-bit ASCII, unused bytes should be NULL characters.
* Ref: NVM Express Management Interface 1.0a.
* 7-bit ASCII, unused bytes should be space characters.
* Ref: NVMe v1.3c.
*/
memset(sc->ctrldata.sn, 0, sizeof(sc->ctrldata.sn));
strncpy(sc->ctrldata.sn, config,
sizeof(sc->ctrldata.sn));
cpywithpad((char *)sc->ctrldata.sn,
sizeof(sc->ctrldata.sn), config, ' ');
} else if (!strcmp("ram", xopts)) {
uint64_t sz = strtoull(&xopts[4], NULL, 10);