Function sfc_ef100_evq_prime

dpdk/drivers/net/sfc/sfc_ef100.h:24–43

* Prime event queue to allow processed events to be reused. * * @param evq_prime Global address of the prime register * @param evq_hw_index Event queue index * @param evq_read_ptr Masked event queue read pointer */

 * @param evq_read_ptr	Masked event queue read pointer
 */
static inline void
sfc_ef100_evq_prime(volatile void *evq_prime, unsigned int evq_hw_index,
		    unsigned int evq_read_ptr)
{
	efx_dword_t dword;

	EFX_POPULATE_DWORD_2(dword,
			     ERF_GZ_EVQ_ID, evq_hw_index,
			     ERF_GZ_IDX, evq_read_ptr);

	/*
	 * EvQ prime on EF100 allows HW to reuse descriptors. So we
	 * should be sure that event descriptor reads are done.
	 * However, there is implicit data dependency here since we
	 * move past event if we have found out that the event has
	 * come (i.e. we read it) and we have processed it.
	 * So, no extra barriers are required here.
	 */
	rte_write32_relaxed(dword.ed_u32[0], evq_prime);
}

static inline bool
sfc_ef100_ev_present(const efx_qword_t *ev, bool phase_bit)