About kernel property for disk drv

Question

hi all:
i try to understand the dirvers for the harddisk,but i can't find these three property's position,they are:
"queue", "flow_control" and "disk". they are referenced in the file cmdk.c, be invoked by the attach.
but these three property name can't be found in cmdk.conf . that's why? and where are they stored ?
thank you.
the code is:
cmdk_create_obj(dev_info_t devi, struct cmdk dkp)
     struct scsi_device *devp;
     opaque_t     queobjp = NULL;
     opaque_t     flcobjp = NULL;
     char          que_keyvalp[OBJNAMELEN];
     int          que_keylen;
     char          flc_keyvalp[OBJNAMELEN];
     int          flc_keylen;
     char          dsk_keyvalp[OBJNAMELEN];
     int          dsk_keylen;
     que_keylen = sizeof (que_keyvalp);
     if (ddi_prop_op(DDI_DEV_T_NONE, devi, PROP_LEN_AND_VAL_BUF,
     DDI_PROP_CANSLEEP, "queue", que_keyvalp, &que_keylen) !=
     DDI_PROP_SUCCESS) {
          cmn_err(CE_WARN, "cmdk_create_obj: queue property undefined");
          return (DDI_FAILURE);
     que_keyvalp[que_keylen] = (char)0;
     flc_keylen = sizeof (flc_keyvalp);
     if (ddi_prop_op(DDI_DEV_T_NONE, devi, PROP_LEN_AND_VAL_BUF,
     DDI_PROP_CANSLEEP, "flow_control", flc_keyvalp, &flc_keylen) !=
     DDI_PROP_SUCCESS) {
          cmn_err(CE_WARN,
          "cmdk_create_obj: flow-control property undefined");
          return (DDI_FAILURE);
     flc_keyvalp[flc_keylen] = (char)0;
     dsk_keylen = sizeof (dsk_keyvalp);
     if (ddi_prop_op(DDI_DEV_T_NONE, devi, PROP_LEN_AND_VAL_BUF,
     DDI_PROP_CANSLEEP, "disk", dsk_keyvalp, &dsk_keylen) !=
     DDI_PROP_SUCCESS) {
          cmn_err(CE_WARN,
          "cmdk_create_obj: target disk property undefined");
          return (DDI_FAILURE);
     dsk_keyvalp[dsk_keylen] = (char)0;
     if ((objmgr_load_obj(que_keyvalp) != DDI_SUCCESS) ||
     !(queobjp = objmgr_create_obj(que_keyvalp))) {
          cmn_err(CE_WARN,
          "cmdk_create_obj: ERROR creating queue method %s\n",
          que_keyvalp);
          return (DDI_FAILURE);
     if ((objmgr_load_obj(flc_keyvalp) != DDI_SUCCESS) ||
     !(flcobjp = objmgr_create_obj(flc_keyvalp))) {
          QUE_FREE(queobjp);
          (void) objmgr_destroy_obj(que_keyvalp);
          cmn_err(CE_WARN,
          "cmdk_create_obj: ERROR creating flow control %s\n",
          flc_keyvalp);
          return (DDI_FAILURE);
     if ((objmgr_load_obj(dsk_keyvalp) != DDI_SUCCESS) ||
     !(dkp->dk_tgobjp = objmgr_create_obj(dsk_keyvalp))) {
          QUE_FREE(queobjp);
          (void) objmgr_destroy_obj(que_keyvalp);
          FLC_FREE(flcobjp);
          (void) objmgr_destroy_obj(flc_keyvalp);
          cmn_err(CE_WARN,
          "cmdk_create_obj: ERROR creating target disk %s\n",
          dsk_keyvalp);
          return (DDI_FAILURE);
     devp = ddi_get_driver_private(devi);
     TGDK_INIT(CMDK_TGOBJP(dkp), devp, flcobjp, queobjp, &cmdk_bbh_obj,
     NULL);
     return (DDI_SUCCESS);
}

Answer 1

I did almost the same thing yesterday, following a slightly different path: configured the kernel (vanilla3.8-rc7 ) with make localyesconfig, then i reverted back to modules the parts that made more sense if modularized (like the usb stuff).
It worked w/o major problems, the UUID thing is already present on the 3.8-rc7 kernel, and i even enabled it, but I haven't experimented if it works for now I'm booting via the classical device names (/dev/sdX)
Last edited by The Solutor (2013-02-12 17:16:46)