Differential D12425 Diff 33244 sys/dev/liquidio/lio_main.h

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sys/dev/liquidio/lio_main.h

				/*
				* BSD LICENSE
				*
				* Copyright(c) 2017 Cavium, Inc.. All rights reserved.
				* All rights reserved.
				*
				* Redistribution and use in source and binary forms, with or without
				* modification, are permitted provided that the following conditions
				* are met:
				*
				* * Redistributions of source code must retain the above copyright
				* notice, this list of conditions and the following disclaimer.
				* * Redistributions in binary form must reproduce the above copyright
				* notice, this list of conditions and the following disclaimer in
				* the documentation and/or other materials provided with the
				* distribution.
				* * Neither the name of Cavium, Inc. nor the names of its
				* contributors may be used to endorse or promote products derived
				* from this software without specific prior written permission.
				*
				* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
				* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
				* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
				* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
				* OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
				* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
				* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
				* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
				* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
				* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
				* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
				*/
				/$FreeBSD$/

				/*
				* \file lio_main.h
				* \brief Host Driver: This file is included by all host driver source files
				* to include common definitions.
				*/

				#ifndef _LIO_MAIN_H_
				#define _LIO_MAIN_H_

				extern unsigned int lio_hwlro;

				#define LIO_CAST64(v) ((long long)(long)(v))

				#define LIO_DRV_NAME "lio"

				/** Swap 8B blocks */
				static inline void
				lio_swap_8B_data(uint64_t *data, uint32_t blocks)
				{

				while (blocks) {
				data = htobe64(data);
				blocks--;
				data++;
				}
				}

				/*
				* \brief unmaps a PCI BAR
				* @param oct Pointer to Octeon device
				* @param baridx bar index
				*/
				static inline void
				lio_unmap_pci_barx(struct octeon_device *oct, int baridx)
				{

				lio_dev_dbg(oct, "Freeing PCI mapped regions for Bar%d\n", baridx);

				if (oct->mem_bus_space[baridx].pci_mem != NULL) {
				bus_release_resource(oct->device, SYS_RES_MEMORY,
				PCIR_BAR(baridx * 2),
				oct->mem_bus_space[baridx].pci_mem);
				oct->mem_bus_space[baridx].pci_mem = NULL;
				}
				}

				/*
				* \brief maps a PCI BAR
				* @param oct Pointer to Octeon device
				* @param baridx bar index
				*/
				static inline int
				lio_map_pci_barx(struct octeon_device *oct, int baridx)
				{
				int rid = PCIR_BAR(baridx * 2);

				oct->mem_bus_space[baridx].pci_mem =
				bus_alloc_resource_any(oct->device, SYS_RES_MEMORY, &rid,
				RF_ACTIVE);

				if (oct->mem_bus_space[baridx].pci_mem == NULL) {
				lio_dev_err(oct, "Unable to allocate bus resource: memory\n");
				return (ENXIO);
				}

				/* Save bus_space values for READ/WRITE_REG macros */
				oct->mem_bus_space[baridx].tag =
				rman_get_bustag(oct->mem_bus_space[baridx].pci_mem);
				oct->mem_bus_space[baridx].handle =
				rman_get_bushandle(oct->mem_bus_space[baridx].pci_mem);

				lio_dev_dbg(oct, "BAR%d Tag 0x%llx Handle 0x%llx\n",
				baridx, LIO_CAST64(oct->mem_bus_space[baridx].tag),
				LIO_CAST64(oct->mem_bus_space[baridx].handle));

				return (0);
				}

				static inline void
				lio_sleep_cond(struct octeon_device oct, volatile int condition)
				{

				while (!(*condition)) {
				lio_mdelay(1);
				lio_flush_iq(oct, oct->instr_queue[0], 0);
				lio_process_ordered_list(oct, 0);
				}
				}

				int lio_console_debug_enabled(uint32_t console);

				#ifndef ROUNDUP4
				#define ROUNDUP4(val) (((val) + 3) & 0xfffffffc)
				#endif

				#ifndef ROUNDUP8
				#define ROUNDUP8(val) (((val) + 7) & 0xfffffff8)
				#endif

				#define BIT_ULL(nr) (1ULL << (nr))

				void lio_free_mbuf(struct lio_instr_queue *iq,
				struct lio_mbuf_free_info *finfo);
				void lio_free_sgmbuf(struct lio_instr_queue *iq,
				struct lio_mbuf_free_info *finfo);

				#endif /* _LIO_MAIN_H_ */