XXXX introduce drv_sectohz

*** 3787,3797 ****
           * Start watchdog timer on data transfer type commands - required
           * in case a diskette is not present or is unformatted
           */
          if (csb->csb_opflags & CSB_OFTIMEIT) {
                  fdc->c_timeid = timeout(fdwatch, a,
!                     tosec * drv_usectohz(1000000));
          }
  
          FDERRPRINT(FDEP_L1, FDEM_EXEC,
              (C, "fdexec: cmd sent, Msr 0x%x\n", Msr(fdc)));
  
--- 3787,3797 ----
           * Start watchdog timer on data transfer type commands - required
           * in case a diskette is not present or is unformatted
           */
          if (csb->csb_opflags & CSB_OFTIMEIT) {
                  fdc->c_timeid = timeout(fdwatch, a,
!                     drv_sectohz(tosec));
          }
  
          FDERRPRINT(FDEP_L1, FDEM_EXEC,
              (C, "fdexec: cmd sent, Msr 0x%x\n", Msr(fdc)));
  
*** 4840,4850 ****
                  FDERRPRINT(FDEP_L1, FDEM_ATTA,
                      (C, "fdattach: Dor 0x%x\n", Dor(fdc)));
  
                  local_lbolt = ddi_get_lbolt();
                  if (cv_timedwait(&fdc->c_iocv, &fdc->c_lolock,
!                     local_lbolt + drv_usectohz(1000000)) == -1) {
                          return (-1);
                  }
                  break;
  
          default:
--- 4840,4850 ----
                  FDERRPRINT(FDEP_L1, FDEM_ATTA,
                      (C, "fdattach: Dor 0x%x\n", Dor(fdc)));
  
                  local_lbolt = ddi_get_lbolt();
                  if (cv_timedwait(&fdc->c_iocv, &fdc->c_lolock,
!                     local_lbolt + drv_sectohz(1)) == -1) {
                          return (-1);
                  }
                  break;
  
          default: