1 /*- 2 * Copyright 2016-2023 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 27 #ifndef _PQI_HELPER_H 28 #define _PQI_HELPER_H 29 30 31 static inline uint64_t 32 pqisrc_increment_device_active_io(pqisrc_softstate_t *softs, pqi_scsi_dev_t *device) 33 { 34 #if PQISRC_DEVICE_IO_COUNTER 35 /*Increment device active io count by one*/ 36 return OS_ATOMIC64_INC(&device->active_requests); 37 #endif 38 } 39 40 static inline uint64_t 41 pqisrc_decrement_device_active_io(pqisrc_softstate_t *softs, pqi_scsi_dev_t *device) 42 { 43 #if PQISRC_DEVICE_IO_COUNTER 44 /*Decrement device active io count by one*/ 45 return OS_ATOMIC64_DEC(&device->active_requests); 46 #endif 47 } 48 49 static inline void 50 pqisrc_init_device_active_io(pqisrc_softstate_t *softs, pqi_scsi_dev_t *device) 51 { 52 #if PQISRC_DEVICE_IO_COUNTER 53 /* Reset device count to Zero */ 54 OS_ATOMIC64_INIT(&device->active_requests, 0); 55 #endif 56 } 57 58 static inline uint64_t 59 pqisrc_read_device_active_io(pqisrc_softstate_t *softs, pqi_scsi_dev_t *device) 60 { 61 #if PQISRC_DEVICE_IO_COUNTER 62 /* read device active count*/ 63 return OS_ATOMIC64_READ(&device->active_requests); 64 #endif 65 } 66 #endif /* _PQI_HELPER_H */ 67