1 /* SPDX-License-Identifier: BSD-3-Clause */
54 MALLOC_DEFINE(M_ICE_OSDEP, "ice-osdep", "Intel(R) 100Gb Network Driver osdep allocations");
69  * ice_hw_to_dev - Given a hw private struct, find the associated device_t
84 	return sc->dev;  in ice_hw_to_dev()
88  * ice_debug - Log a debug message if the type is enabled
93  * Check if hw->debug_mask has enabled the given message type. If so, log the
103 	if (!(mask & hw->debug_mask))  in ice_debug()
113  * ice_debug_array - Format and print an array of values to the console
134 	if (!(mask & hw->debug_mask))  in ice_debug_array()
140 	/* Make sure the row-size isn't too large */  in ice_debug_array()
148  * ice_info_fwlog - Format and print an array of values to the console
176 	/* Make sure the row-size isn't too large */  in ice_info_fwlog()
184  * rd32 - Read a 32bit hardware register value
195 	return bus_space_read_4(sc->bar0.tag, sc->bar0.handle, reg);  in rd32()
199  * rd64 - Read a 64bit hardware register value
205  * @pre For 32-bit builds, assumes that the 64bit register read can be
206  * safely broken up into two 32-bit register reads.
215 	data = bus_space_read_8(sc->bar0.tag, sc->bar0.handle, reg);  in rd64()
221 	data = bus_space_read_4(sc->bar0.tag, sc->bar0.handle, reg);  in rd64()
222 	data |= ((uint64_t)bus_space_read_4(sc->bar0.tag, sc->bar0.handle, reg + 4)) << 32;  in rd64()
229  * wr32 - Write a 32bit hardware register
241 	bus_space_write_4(sc->bar0.tag, sc->bar0.handle, reg, val);  in wr32()
245  * wr64 - Write a 64bit hardware register
252  * @pre For 32-bit builds, assumes that the 64bit register write can be safely
253  * broken up into two 32-bit register writes.
261 	bus_space_write_8(sc->bar0.tag, sc->bar0.handle, reg, val);  in wr64()
271 	bus_space_write_4(sc->bar0.tag, sc->bar0.handle, reg, lo_val);  in wr64()
272 	bus_space_write_4(sc->bar0.tag, sc->bar0.handle, reg + 4, hi_val);  in wr64()
277  * ice_usec_delay - Delay for the specified number of microseconds
279  * @sleep: if true, sleep where possible
281  * If sleep is true, and if the current thread is allowed to sleep, pause so
286 ice_usec_delay(uint32_t time, bool sleep)  in ice_usec_delay()  argument
288 	if (sleep && THREAD_CAN_SLEEP())  in ice_usec_delay()
295  * ice_msec_delay - Delay for the specified number of milliseconds
297  * @sleep: if true, sleep where possible
299  * If sleep is true, and if the current thread is allowed to sleep, pause so
304 ice_msec_delay(uint32_t time, bool sleep)  in ice_msec_delay()  argument
306 	if (sleep && THREAD_CAN_SLEEP())  in ice_msec_delay()
313  * ice_msec_pause - pause (sleep) the thread for a time in milliseconds
314  * @time: milliseconds to sleep
316  * Wrapper for ice_msec_delay with sleep set to true.
325  * ice_msec_spin - Spin the thread for a time in milliseconds
328  * Wrapper for ice_msec_delay with sleep sent to false.
341  * ice_dmamap_cb - Callback function DMA maps
354 	*(bus_addr_t *) arg = segs->ds_addr;  in ice_dmamap_cb()
359  * ice_alloc_dma_mem - Request OS to allocate DMA memory
365  * track this memory using a bus DMA tag and map.
386 				 &mem->tag);  in ice_alloc_dma_mem()
393 	err = bus_dmamem_alloc(mem->tag, (void **)&mem->va,  in ice_alloc_dma_mem()
394 			     BUS_DMA_NOWAIT | BUS_DMA_ZERO, &mem->map);  in ice_alloc_dma_mem()
401 	err = bus_dmamap_load(mem->tag, mem->map, mem->va,  in ice_alloc_dma_mem()
404 			    &mem->pa,  in ice_alloc_dma_mem()
412 	mem->size = size;  in ice_alloc_dma_mem()
413 	bus_dmamap_sync(mem->tag, mem->map,  in ice_alloc_dma_mem()
415 	return (mem->va);  in ice_alloc_dma_mem()
417 	bus_dmamem_free(mem->tag, mem->va, mem->map);  in ice_alloc_dma_mem()
419 	bus_dma_tag_destroy(mem->tag);  in ice_alloc_dma_mem()
421 	mem->map = NULL;  in ice_alloc_dma_mem()
422 	mem->tag = NULL;  in ice_alloc_dma_mem()
427  * ice_free_dma_mem - Free DMA memory allocated by ice_alloc_dma_mem
431  * Release the bus DMA tag and map, and free the DMA memory associated with
437 	bus_dmamap_sync(mem->tag, mem->map,  in ice_free_dma_mem()
439 	bus_dmamap_unload(mem->tag, mem->map);  in ice_free_dma_mem()
440 	bus_dmamem_free(mem->tag, mem->va, mem->map);  in ice_free_dma_mem()
441 	bus_dma_tag_destroy(mem->tag);  in ice_free_dma_mem()
442 	mem->map = NULL;  in ice_free_dma_mem()
443 	mem->tag = NULL;  in ice_free_dma_mem()