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 34 /* 35 * \file lio_main.h 36 * \brief Host Driver: This file is included by all host driver source files 37 * to include common definitions. 38 */ 39 40 #ifndef _LIO_MAIN_H_ 41 #define _LIO_MAIN_H_ 42 43 extern unsigned int lio_hwlro; 44 45 #define LIO_CAST64(v) ((long long)(long)(v)) 46 47 #define LIO_DRV_NAME "lio" 48 49 /** Swap 8B blocks */ 50 static inline void 51 lio_swap_8B_data(uint64_t *data, uint32_t blocks) 52 { 53 54 while (blocks) { 55 *data = htobe64(*data); 56 blocks--; 57 data++; 58 } 59 } 60 61 /* 62 * \brief unmaps a PCI BAR 63 * @param oct Pointer to Octeon device 64 * @param baridx bar index 65 */ 66 static inline void 67 lio_unmap_pci_barx(struct octeon_device *oct, int baridx) 68 { 69 70 lio_dev_dbg(oct, "Freeing PCI mapped regions for Bar%d\n", baridx); 71 72 if (oct->mem_bus_space[baridx].pci_mem != NULL) { 73 bus_release_resource(oct->device, SYS_RES_MEMORY, 74 PCIR_BAR(baridx * 2), 75 oct->mem_bus_space[baridx].pci_mem); 76 oct->mem_bus_space[baridx].pci_mem = NULL; 77 } 78 } 79 80 /* 81 * \brief maps a PCI BAR 82 * @param oct Pointer to Octeon device 83 * @param baridx bar index 84 */ 85 static inline int 86 lio_map_pci_barx(struct octeon_device *oct, int baridx) 87 { 88 int rid = PCIR_BAR(baridx * 2); 89 90 oct->mem_bus_space[baridx].pci_mem = 91 bus_alloc_resource_any(oct->device, SYS_RES_MEMORY, &rid, 92 RF_ACTIVE); 93 94 if (oct->mem_bus_space[baridx].pci_mem == NULL) { 95 lio_dev_err(oct, "Unable to allocate bus resource: memory\n"); 96 return (ENXIO); 97 } 98 99 /* Save bus_space values for READ/WRITE_REG macros */ 100 oct->mem_bus_space[baridx].tag = 101 rman_get_bustag(oct->mem_bus_space[baridx].pci_mem); 102 oct->mem_bus_space[baridx].handle = 103 rman_get_bushandle(oct->mem_bus_space[baridx].pci_mem); 104 105 lio_dev_dbg(oct, "BAR%d Tag 0x%llx Handle 0x%llx\n", 106 baridx, LIO_CAST64(oct->mem_bus_space[baridx].tag), 107 LIO_CAST64(oct->mem_bus_space[baridx].handle)); 108 109 return (0); 110 } 111 112 static inline void 113 lio_sleep_cond(struct octeon_device *oct, volatile int *condition) 114 { 115 116 while (!(*condition)) { 117 lio_mdelay(1); 118 lio_flush_iq(oct, oct->instr_queue[0], 0); 119 lio_process_ordered_list(oct, 0); 120 } 121 } 122 123 int lio_console_debug_enabled(uint32_t console); 124 125 #ifndef ROUNDUP4 126 #define ROUNDUP4(val) (((val) + 3) & 0xfffffffc) 127 #endif 128 129 #ifndef ROUNDUP8 130 #define ROUNDUP8(val) (((val) + 7) & 0xfffffff8) 131 #endif 132 133 #define BIT_ULL(nr) (1ULL << (nr)) 134 135 void lio_free_mbuf(struct lio_instr_queue *iq, 136 struct lio_mbuf_free_info *finfo); 137 void lio_free_sgmbuf(struct lio_instr_queue *iq, 138 struct lio_mbuf_free_info *finfo); 139 140 #endif /* _LIO_MAIN_H_ */ 141