1/*-
2 * Copyright 2016-2021 Microchip Technology, Inc. and/or its subsidiaries.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26/* $FreeBSD$ */
27
28#include "smartpqi_includes.h"
29
30/*
31 * Function to submit the request to the adapter.
32 */
33
34int
35pqisrc_submit_cmnd(pqisrc_softstate_t *softs, ib_queue_t *ib_q, void *req)
36{
37	char *slot = NULL;
38	uint32_t offset;
39	iu_header_t *hdr = (iu_header_t *)req;
40	uint32_t iu_len = hdr->iu_length + 4 ; /* header size */
41	int i = 0;
42	DBG_FUNC("IN\n");
43
44	PQI_LOCK(&ib_q->lock);
45
46	/* Check queue full */
47	if ((ib_q->pi_local + 1) % ib_q->num_elem == *(ib_q->ci_virt_addr)) {
48		DBG_WARN("OUT Q full\n");
49	PQI_UNLOCK(&ib_q->lock);
50		return PQI_STATUS_QFULL;
51	}
52
53	/* Get the slot */
54	offset = ib_q->pi_local * ib_q->elem_size;
55	slot = ib_q->array_virt_addr + offset;
56
57	/* Copy the IU */
58	memcpy(slot, req, iu_len);
59	DBG_INFO("IU : \n");
60	for(i = 0; i< iu_len; i++)
61		DBG_INFO(" IU [ %d ] : %x\n", i, *((unsigned char *)(slot + i)));
62
63	/* Update the local PI */
64	ib_q->pi_local = (ib_q->pi_local + 1) % ib_q->num_elem;
65	DBG_INFO("ib_q->pi_local : %x IU size : %d\n",
66			 ib_q->pi_local, hdr->iu_length);
67	DBG_INFO("*ib_q->ci_virt_addr: %x\n",
68				*(ib_q->ci_virt_addr));
69
70	/* Inform the fw about the new IU */
71	PCI_MEM_PUT32(softs, ib_q->pi_register_abs, ib_q->pi_register_offset, ib_q->pi_local);
72	PQI_UNLOCK(&ib_q->lock);
73	DBG_FUNC("OUT\n");
74	return PQI_STATUS_SUCCESS;
75}
76