The branch stable/13 has been updated by mav:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=de0b02cb7b112947191af96dd34e7a95b760019c

commit de0b02cb7b112947191af96dd34e7a95b760019c
Author:     Alexander Motin <[email protected]>
AuthorDate: 2023-03-09 15:19:00 +0000
Commit:     Alexander Motin <[email protected]>
CommitDate: 2023-03-13 13:53:03 +0000

    nvmecontrol: Fix default ns create parameters.
    
    Instead of passing 0xff's for all unset parameters, prefer reasonable
    defaults.  It is much easier to use it this was without specs in hand.
    
    PR:     269912
    (cherry picked from commit 20dc2c4d11ddaa980c491116b65c51ab522028e9)
---
 sbin/nvmecontrol/ns.c | 56 ++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 37 insertions(+), 19 deletions(-)

diff --git a/sbin/nvmecontrol/ns.c b/sbin/nvmecontrol/ns.c
index 763c12aa11af..040918caf9c5 100644
--- a/sbin/nvmecontrol/ns.c
+++ b/sbin/nvmecontrol/ns.c
@@ -577,30 +577,48 @@ nscreate(const struct cmd *f, int argc, char *argv[])
            NVME_CTRLR_DATA_OACS_NSMGMT_MASK) == 0)
                errx(EX_UNAVAILABLE, "controller does not support namespace 
management");
 
-       /* Allow namespaces sharing if Multi-Path I/O is supported. */
-       if (create_opt.nmic == NONE) {
-               create_opt.nmic = cd.mic ? 
(NVME_NS_DATA_NMIC_MAY_BE_SHARED_MASK <<
-                    NVME_NS_DATA_NMIC_MAY_BE_SHARED_SHIFT) : 0;
-       }
-
        memset(&nsdata, 0, sizeof(nsdata));
        nsdata.nsze = create_opt.nsze;
        nsdata.ncap = create_opt.cap;
-       if (create_opt.flbas == NONE)
-               nsdata.flbas = ((create_opt.lbaf & 
NVME_NS_DATA_FLBAS_FORMAT_MASK)
-                   << NVME_NS_DATA_FLBAS_FORMAT_SHIFT) |
-                   ((create_opt.mset & NVME_NS_DATA_FLBAS_EXTENDED_MASK)
-                       << NVME_NS_DATA_FLBAS_EXTENDED_SHIFT);
-       else
+       if (create_opt.flbas != NONE) {
                nsdata.flbas = create_opt.flbas;
-       if (create_opt.dps == NONE)
-               nsdata.dps = ((create_opt.pi & NVME_NS_DATA_DPS_MD_START_MASK)
-                   << NVME_NS_DATA_DPS_MD_START_SHIFT) |
-                   ((create_opt.pil & NVME_NS_DATA_DPS_PIT_MASK)
-                       << NVME_NS_DATA_DPS_PIT_SHIFT);
-       else
+       } else {
+               /* Default to the first format, whatever it is. */
+               nsdata.flbas = 0;
+               if (create_opt.lbaf != NONE) {
+                       nsdata.flbas |= (create_opt.lbaf &
+                           NVME_NS_DATA_FLBAS_FORMAT_MASK)
+                           << NVME_NS_DATA_FLBAS_FORMAT_SHIFT;
+               }
+               if (create_opt.mset != NONE) {
+                       nsdata.flbas |= (create_opt.mset &
+                           NVME_NS_DATA_FLBAS_EXTENDED_MASK)
+                           << NVME_NS_DATA_FLBAS_EXTENDED_SHIFT;
+               }
+       }
+       if (create_opt.dps != NONE) {
                nsdata.dps = create_opt.dps;
-       nsdata.nmic = create_opt.nmic;
+       } else {
+               /* Default to protection disabled. */
+               nsdata.dps = 0;
+               if (create_opt.pi != NONE) {
+                       nsdata.dps |= (create_opt.pi &
+                           NVME_NS_DATA_DPS_MD_START_MASK)
+                           << NVME_NS_DATA_DPS_MD_START_SHIFT;
+               }
+               if (create_opt.pil != NONE) {
+                       nsdata.dps |= (create_opt.pil &
+                           NVME_NS_DATA_DPS_PIT_MASK)
+                           << NVME_NS_DATA_DPS_PIT_SHIFT;
+               }
+       }
+       if (create_opt.nmic != NONE) {
+               nsdata.nmic = create_opt.nmic;
+       } else {
+               /* Allow namespaces sharing if Multi-Path I/O is supported. */
+               nsdata.nmic = cd.mic ? (NVME_NS_DATA_NMIC_MAY_BE_SHARED_MASK <<
+                    NVME_NS_DATA_NMIC_MAY_BE_SHARED_SHIFT) : 0;
+       }
        nvme_namespace_data_swapbytes(&nsdata);
 
        memset(&pt, 0, sizeof(pt));

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