903 
 904         msg_type = request->msg_type.type;
 905 
 906         /*
 907          * Verify that we have already set up the master sbbc
 908          */
 909         if (master_mbox == NULL)
 910                 return (ENXIO);
 911         mbox_wait_lock = &master_mbox->mbox_wait_lock[msg_type];
 912 
 913         flags = WAIT_FOR_REPLY|WAIT_FOR_SPACE;
 914 
 915         /*
 916          * We want to place a lower limit on the shortest amount of time we
 917          * will wait before timing out while communicating with the SC via
 918          * the mailbox.
 919          */
 920         if (wait_time < sbbc_mbox_min_timeout)
 921                 wait_time = sbbc_mbox_default_timeout;
 922 
 923         stop_time = ddi_get_lbolt() + wait_time * drv_usectohz(MICROSEC);
 924 
 925         /*
 926          * If there is a message being processed, sleep until it is our turn.
 927          */
 928         mutex_enter(&outbox_queue_lock);
 929 
 930         /*
 931          * allocate an ID for this message, let it wrap
 932          * around transparently.
 933          * msg_id == 0 is unsolicited message
 934          */
 935         msg_id = ++(master_mbox->mbox_msg_id);
 936         if (msg_id == 0)
 937                 msg_id = ++(master_mbox->mbox_msg_id);
 938 
 939         SGSBBC_DBG_MBOX("%s: msg_id = 0x%x, msg_len = 0x%x\n",
 940                 f, msg_id, request->msg_len);
 941 
 942         /*
 943          * A new message can actually grab the lock before the thread

 903 
 904         msg_type = request->msg_type.type;
 905 
 906         /*
 907          * Verify that we have already set up the master sbbc
 908          */
 909         if (master_mbox == NULL)
 910                 return (ENXIO);
 911         mbox_wait_lock = &master_mbox->mbox_wait_lock[msg_type];
 912 
 913         flags = WAIT_FOR_REPLY|WAIT_FOR_SPACE;
 914 
 915         /*
 916          * We want to place a lower limit on the shortest amount of time we
 917          * will wait before timing out while communicating with the SC via
 918          * the mailbox.
 919          */
 920         if (wait_time < sbbc_mbox_min_timeout)
 921                 wait_time = sbbc_mbox_default_timeout;
 922 
 923         stop_time = ddi_get_lbolt() + drv_sectohz(wait_time);
 924 
 925         /*
 926          * If there is a message being processed, sleep until it is our turn.
 927          */
 928         mutex_enter(&outbox_queue_lock);
 929 
 930         /*
 931          * allocate an ID for this message, let it wrap
 932          * around transparently.
 933          * msg_id == 0 is unsolicited message
 934          */
 935         msg_id = ++(master_mbox->mbox_msg_id);
 936         if (msg_id == 0)
 937                 msg_id = ++(master_mbox->mbox_msg_id);
 938 
 939         SGSBBC_DBG_MBOX("%s: msg_id = 0x%x, msg_len = 0x%x\n",
 940                 f, msg_id, request->msg_len);
 941 
 942         /*
 943          * A new message can actually grab the lock before the thread