1 /* 2 * BSD LICENSE 3 * 4 * Copyright(c) 2017 Cavium, Inc.. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Cavium, Inc. nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 /*$FreeBSD$*/ 34 35 /* 36 * \file lio_main.h 37 * \brief Host Driver: This file is included by all host driver source files 38 * to include common definitions. 39 */ 40 41 #ifndef _LIO_MAIN_H_ 42 #define _LIO_MAIN_H_ 43 44 extern unsigned int lio_hwlro; 45 46 #define LIO_CAST64(v) ((long long)(long)(v)) 47 48 #define LIO_DRV_NAME "lio" 49 50 /** Swap 8B blocks */ 51 static inline void 52 lio_swap_8B_data(uint64_t *data, uint32_t blocks) 53 { 54 55 while (blocks) { 56 *data = htobe64(*data); 57 blocks--; 58 data++; 59 } 60 } 61 62 /* 63 * \brief unmaps a PCI BAR 64 * @param oct Pointer to Octeon device 65 * @param baridx bar index 66 */ 67 static inline void 68 lio_unmap_pci_barx(struct octeon_device *oct, int baridx) 69 { 70 71 lio_dev_dbg(oct, "Freeing PCI mapped regions for Bar%d\n", baridx); 72 73 if (oct->mem_bus_space[baridx].pci_mem != NULL) { 74 bus_release_resource(oct->device, SYS_RES_MEMORY, 75 PCIR_BAR(baridx * 2), 76 oct->mem_bus_space[baridx].pci_mem); 77 oct->mem_bus_space[baridx].pci_mem = NULL; 78 } 79 } 80 81 /* 82 * \brief maps a PCI BAR 83 * @param oct Pointer to Octeon device 84 * @param baridx bar index 85 */ 86 static inline int 87 lio_map_pci_barx(struct octeon_device *oct, int baridx) 88 { 89 int rid = PCIR_BAR(baridx * 2); 90 91 oct->mem_bus_space[baridx].pci_mem = 92 bus_alloc_resource_any(oct->device, SYS_RES_MEMORY, &rid, 93 RF_ACTIVE); 94 95 if (oct->mem_bus_space[baridx].pci_mem == NULL) { 96 lio_dev_err(oct, "Unable to allocate bus resource: memory\n"); 97 return (ENXIO); 98 } 99 100 /* Save bus_space values for READ/WRITE_REG macros */ 101 oct->mem_bus_space[baridx].tag = 102 rman_get_bustag(oct->mem_bus_space[baridx].pci_mem); 103 oct->mem_bus_space[baridx].handle = 104 rman_get_bushandle(oct->mem_bus_space[baridx].pci_mem); 105 106 lio_dev_dbg(oct, "BAR%d Tag 0x%llx Handle 0x%llx\n", 107 baridx, LIO_CAST64(oct->mem_bus_space[baridx].tag), 108 LIO_CAST64(oct->mem_bus_space[baridx].handle)); 109 110 return (0); 111 } 112 113 static inline void 114 lio_sleep_cond(struct octeon_device *oct, volatile int *condition) 115 { 116 117 while (!(*condition)) { 118 lio_mdelay(1); 119 lio_flush_iq(oct, oct->instr_queue[0], 0); 120 lio_process_ordered_list(oct, 0); 121 } 122 } 123 124 int lio_console_debug_enabled(uint32_t console); 125 126 #ifndef ROUNDUP4 127 #define ROUNDUP4(val) (((val) + 3) & 0xfffffffc) 128 #endif 129 130 #ifndef ROUNDUP8 131 #define ROUNDUP8(val) (((val) + 7) & 0xfffffff8) 132 #endif 133 134 #define BIT_ULL(nr) (1ULL << (nr)) 135 136 void lio_free_mbuf(struct lio_instr_queue *iq, 137 struct lio_mbuf_free_info *finfo); 138 void lio_free_sgmbuf(struct lio_instr_queue *iq, 139 struct lio_mbuf_free_info *finfo); 140 141 #endif /* _LIO_MAIN_H_ */ 142