From: Manish Chopra <manish.cho...@qlogic.com>
Date: Thu, 3 Dec 2015 05:59:14 -0500
> @@ -124,8 +124,19 @@ struct qed_spq {
> dma_addr_t p_phys;
> struct qed_spq_entry *p_virt;
>
> - /* Used as index for completions (returns on EQ by FW) */
> - u16 echo_idx;
> + /* Bitmap for handling out-of-order completions */
> +#define SPQ_RING_SIZE \
> + (CORE_SPQE_PAGE_SIZE_BYTES / sizeof(struct slow_path_element))
> +#define SPQ_COMP_BMAP_SIZE (SPQ_RING_SIZE / BITS_PER_LONG)
> + unsigned long p_comp_bitmap[SPQ_COMP_BMAP_SIZE];
> + u8 comp_bitmap_idx;
> +
> +#define SPQ_COMP_BMAP_SET_BIT(p_spq, idx) \
> + __set_bit((idx) % SPQ_RING_SIZE, (p_spq)->p_comp_bitmap)
> +#define SPQ_COMP_BMAP_CLEAR_BIT(p_spq, idx) \
> + __clear_bit((idx) % SPQ_RING_SIZE, (p_spq)->p_comp_bitmap)
> +#define SPQ_COMP_BMAP_TEST_BIT(p_spq, idx) \
> + test_bit((idx) % SPQ_RING_SIZE, (p_spq)->p_comp_bitmap)
>
Don't invent stuff we already have ifrastructure for.
Use DECLARE_BITMAP(), and the helpers, as necessary, in linux/bitmap.h
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