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 /* $FreeBSD$ */ 28 29 #include "smartpqi_includes.h" 30 31 /* 32 * Function to submit the request to the adapter. 33 */ 34 35 int 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