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 34 int 35 pqisrc_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