1/*-
2 * Copyright (c) 2018 Microsemi Corporation.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/* $FreeBSD: stable/11/sys/dev/smartpqi/smartpqi_cmd.c 333019 2018-04-26 16:59:06Z sbruno $ */
28
29#include "smartpqi_includes.h"
30
31/*
32 * Function to submit the request to the adapter.
33 */
34
35int pqisrc_submit_cmnd(pqisrc_softstate_t *softs,
36				ib_queue_t *ib_q, void *req)
37{
38	char *slot = NULL;
39	uint32_t offset;
40	iu_header_t *hdr = (iu_header_t *)req;
41	uint32_t iu_len = hdr->iu_length + 4 ; /* header size */
42	int i = 0;
43	DBG_FUNC("IN\n");
44
45	PQI_LOCK(&ib_q->lock);
46
47	/* Check queue full */
48	if ((ib_q->pi_local + 1) % ib_q->num_elem == *(ib_q->ci_virt_addr)) {
49		DBG_WARN("OUT Q full\n");
50	PQI_UNLOCK(&ib_q->lock);
51		return PQI_STATUS_QFULL;
52	}
53
54	/* Get the slot */
55	offset = ib_q->pi_local * ib_q->elem_size;
56	slot = ib_q->array_virt_addr + offset;
57
58	/* Copy the IU */
59	memcpy(slot, req, iu_len);
60	DBG_INFO("IU : \n");
61	for(i = 0; i< iu_len; i++)
62		DBG_INFO(" IU [ %d ] : %x\n", i, *((unsigned char *)(slot + i)));
63
64	/* Update the local PI */
65	ib_q->pi_local = (ib_q->pi_local + 1) % ib_q->num_elem;
66	DBG_INFO("ib_q->pi_local : %x IU size : %d\n",
67			 ib_q->pi_local, hdr->iu_length);
68	DBG_INFO("*ib_q->ci_virt_addr: %x\n",
69				*(ib_q->ci_virt_addr));
70
71	/* Inform the fw about the new IU */
72	PCI_MEM_PUT32(softs, ib_q->pi_register_abs, ib_q->pi_register_offset, ib_q->pi_local);
73	PQI_UNLOCK(&ib_q->lock);
74	DBG_FUNC("OUT\n");
75	return PQI_STATUS_SUCCESS;
76}
77