text: /*-
   * Copyright (c) 2018 Microsemi Corporation.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  /* $FreeBSD$ */
  
  #include "smartpqi_includes.h"
  
  /*
   * Function to submit the request to the adapter.
   */
  
  int pqisrc_submit_cmnd(pqisrc_softstate_t *softs, 
  				ib_queue_t *ib_q, void *req)
  {
  	char *slot = NULL;
  	uint32_t offset;
  	iu_header_t *hdr = (iu_header_t *)req;
  	uint32_t iu_len = hdr->iu_length + 4 ; /* header size */
  	int i = 0;
  	DBG_FUNC("IN\n");
  
  	PQI_LOCK(&ib_q->lock);
  	
  	/* Check queue full */
  	if ((ib_q->pi_local + 1) % ib_q->num_elem == *(ib_q->ci_virt_addr)) {
  		DBG_WARN("OUT Q full\n");
  	PQI_UNLOCK(&ib_q->lock);	
  		return PQI_STATUS_QFULL;
  	}
  
  	/* Get the slot */
  	offset = ib_q->pi_local * ib_q->elem_size;
  	slot = ib_q->array_virt_addr + offset;
  
  	/* Copy the IU */
  	memcpy(slot, req, iu_len);
  	DBG_INFO("IU : \n");
  	for(i = 0; i< iu_len; i++)
  		DBG_INFO(" IU [ %d ] : %x\n", i, *((unsigned char *)(slot + i)));
  
  	/* Update the local PI */
  	ib_q->pi_local = (ib_q->pi_local + 1) % ib_q->num_elem;
  	DBG_INFO("ib_q->pi_local : %x IU size : %d\n",
  			 ib_q->pi_local, hdr->iu_length);
  	DBG_INFO("*ib_q->ci_virt_addr: %x\n",
  				*(ib_q->ci_virt_addr));
  
  	/* Inform the fw about the new IU */
  	PCI_MEM_PUT32(softs, ib_q->pi_register_abs, ib_q->pi_register_offset, ib_q->pi_local);
  	PQI_UNLOCK(&ib_q->lock);	
  	DBG_FUNC("OUT\n");
  	return PQI_STATUS_SUCCESS;
  }
  