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3 Copyright (c) 2013-2014, Intel Corporation
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7 modification, are permitted provided that the following conditions are met:
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32 ******************************************************************************/
35 #include <machine/stdarg.h>
39 /********************************************************************
40 * Manage DMA'able memory.
41 *******************************************************************/
43 i40e_dmamap_cb(void *arg, bus_dma_segment_t * segs, int nseg, int error)
47 *(bus_addr_t *) arg = segs->ds_addr;
52 i40e_allocate_virt_mem(struct i40e_hw *hw, struct i40e_virt_mem *mem, u32 size)
54 mem->va = malloc(size, M_DEVBUF, M_NOWAIT | M_ZERO);
55 return(mem->va == NULL);
59 i40e_free_virt_mem(struct i40e_hw *hw, struct i40e_virt_mem *mem)
61 free(mem->va, M_DEVBUF);
66 i40e_allocate_dma_mem(struct i40e_hw *hw, struct i40e_dma_mem *mem,
67 enum i40e_memory_type type __unused, u64 size, u32 alignment)
69 device_t dev = ((struct i40e_osdep *)hw->back)->dev;
73 err = bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
74 alignment, 0, /* alignment, bounds */
75 BUS_SPACE_MAXADDR, /* lowaddr */
76 BUS_SPACE_MAXADDR, /* highaddr */
77 NULL, NULL, /* filter, filterarg */
80 size, /* maxsegsize */
81 BUS_DMA_ALLOCNOW, /* flags */
83 NULL, /* lockfuncarg */
87 "i40e_allocate_dma: bus_dma_tag_create failed, "
91 err = bus_dmamem_alloc(mem->tag, (void **)&mem->va,
92 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &mem->map);
95 "i40e_allocate_dma: bus_dmamem_alloc failed, "
99 err = bus_dmamap_load(mem->tag, mem->map, mem->va,
106 "i40e_allocate_dma: bus_dmamap_load failed, "
112 bus_dmamap_sync(mem->tag, mem->map,
113 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
116 bus_dmamem_free(mem->tag, mem->va, mem->map);
118 bus_dma_tag_destroy(mem->tag);
126 i40e_free_dma_mem(struct i40e_hw *hw, struct i40e_dma_mem *mem)
128 bus_dmamap_sync(mem->tag, mem->map,
129 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
130 bus_dmamap_unload(mem->tag, mem->map);
131 bus_dmamem_free(mem->tag, mem->va, mem->map);
132 bus_dma_tag_destroy(mem->tag);
137 i40e_init_spinlock(struct i40e_spinlock *lock)
139 mtx_init(&lock->mutex, "mutex",
140 MTX_NETWORK_LOCK, MTX_DEF | MTX_DUPOK);
144 i40e_acquire_spinlock(struct i40e_spinlock *lock)
146 mtx_lock(&lock->mutex);
150 i40e_release_spinlock(struct i40e_spinlock *lock)
152 mtx_unlock(&lock->mutex);
156 i40e_destroy_spinlock(struct i40e_spinlock *lock)
158 mtx_destroy(&lock->mutex);
162 ** i40e_debug_d - OS dependent version of shared code debug printing
164 void i40e_debug_d(void *hw, u32 mask, char *fmt, ...)
169 if (!(mask & ((struct i40e_hw *)hw)->debug_mask))
173 vsnprintf(buf, sizeof(buf), fmt, args);
176 /* the debug string is already formatted with a newline */
181 i40e_read_pci_cfg(struct i40e_hw *hw, u32 reg)
185 value = pci_read_config(((struct i40e_osdep *)hw->back)->dev,
192 i40e_write_pci_cfg(struct i40e_hw *hw, u32 reg, u16 value)
194 pci_write_config(((struct i40e_osdep *)hw->back)->dev,