After adding a virtual disk to an mfii(4) device (racadm createvirtualdisk, in my case), you get a nice mfii0: logical drive 2 added (target 2) message, but scsictl scsibus0 scan 2 0 doesn't find any drive.
That's because sc_ld[i].ld_present is still unset from mfii_attach() and so mfii_scsipi_request() will return early (with xs->error = XS_SELTIMEOUT). The attached fix seems pretty dammn obvious and appears to work. Shall I file a PR?
Index: sys/dev/pci/mfii.c =================================================================== RCS file: /cvsroot/src/sys/dev/pci/mfii.c,v retrieving revision 1.3.2.7 diff -u -p -r1.3.2.7 mfii.c --- sys/dev/pci/mfii.c 29 Sep 2022 14:41:43 -0000 1.3.2.7 +++ sys/dev/pci/mfii.c 21 Sep 2023 13:38:43 -0000 @@ -1373,6 +1373,7 @@ mfii_aen_ld_update(struct mfii_softc *sc if (old == -1 && nld != -1) { printf("%s: logical drive %d added (target %d)\n", DEVNAME(sc), i, nld); + sc->sc_ld[i].ld_present = 1; // XXX scsi_probe_target(sc->sc_scsibus, i); @@ -1381,6 +1382,7 @@ mfii_aen_ld_update(struct mfii_softc *sc } else if (nld == -1 && old != -1) { printf("%s: logical drive %d removed (target %d)\n", DEVNAME(sc), i, old); + sc->sc_ld[i].ld_present = 0; scsipi_target_detach(&sc->sc_chan, i, 0, DETACH_FORCE); sysmon_envsys_sensor_detach(sc->sc_sme,