52 int ena_com_prepare_tx(struct ena_com_io_sq *io_sq,
57 		   struct ena_com_io_sq *io_sq,
60 int ena_com_add_single_rx_desc(struct ena_com_io_sq *io_sq,
72 static inline int ena_com_free_q_entries(struct ena_com_io_sq *io_sq)  in ena_com_free_q_entries()  argument
76 	next_to_comp = io_sq->next_to_comp;  in ena_com_free_q_entries()
77 	tail = io_sq->tail;  in ena_com_free_q_entries()
80 	return io_sq->q_depth - 1 - cnt;  in ena_com_free_q_entries()
84 static inline bool ena_com_sq_have_enough_space(struct ena_com_io_sq *io_sq,  in ena_com_sq_have_enough_space()  argument
89 	if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)  in ena_com_sq_have_enough_space()
90 		return ena_com_free_q_entries(io_sq) >= required_buffers;  in ena_com_sq_have_enough_space()
97 	temp = required_buffers / io_sq->llq_info.descs_per_entry + 2;  in ena_com_sq_have_enough_space()
99 	return ena_com_free_q_entries(io_sq) > temp;  in ena_com_sq_have_enough_space()
102 static inline bool ena_com_meta_desc_changed(struct ena_com_io_sq *io_sq,  in ena_com_meta_desc_changed()  argument
108 	return !!memcmp(&io_sq->cached_tx_meta,  in ena_com_meta_desc_changed()
113 static inline bool is_llq_max_tx_burst_exists(struct ena_com_io_sq *io_sq)  in is_llq_max_tx_burst_exists()  argument
115 	return (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) &&  in is_llq_max_tx_burst_exists()
116 	       io_sq->llq_info.max_entries_in_tx_burst > 0;  in is_llq_max_tx_burst_exists()
119 static inline bool ena_com_is_doorbell_needed(struct ena_com_io_sq *io_sq,  in ena_com_is_doorbell_needed()  argument
127 	if (!is_llq_max_tx_burst_exists(io_sq))  in ena_com_is_doorbell_needed()
130 	llq_info = &io_sq->llq_info;  in ena_com_is_doorbell_needed()
134 	    unlikely(ena_com_meta_desc_changed(io_sq, ena_tx_ctx)))  in ena_com_is_doorbell_needed()
143 	netdev_dbg(ena_com_io_sq_to_ena_dev(io_sq)->net_device,  in ena_com_is_doorbell_needed()
145 		   io_sq->qid, num_descs, num_entries_needed);  in ena_com_is_doorbell_needed()
147 	return num_entries_needed > io_sq->entries_in_tx_burst_left;  in ena_com_is_doorbell_needed()
150 static inline int ena_com_write_sq_doorbell(struct ena_com_io_sq *io_sq)  in ena_com_write_sq_doorbell()  argument
152 	u16 max_entries_in_tx_burst = io_sq->llq_info.max_entries_in_tx_burst;  in ena_com_write_sq_doorbell()
153 	u16 tail = io_sq->tail;  in ena_com_write_sq_doorbell()
155 	netdev_dbg(ena_com_io_sq_to_ena_dev(io_sq)->net_device,  in ena_com_write_sq_doorbell()
157 		   io_sq->qid, tail);  in ena_com_write_sq_doorbell()
159 	writel(tail, io_sq->db_addr);  in ena_com_write_sq_doorbell()
161 	if (is_llq_max_tx_burst_exists(io_sq)) {  in ena_com_write_sq_doorbell()
162 		netdev_dbg(ena_com_io_sq_to_ena_dev(io_sq)->net_device,  in ena_com_write_sq_doorbell()
164 			   io_sq->qid, max_entries_in_tx_burst);  in ena_com_write_sq_doorbell()
165 		io_sq->entries_in_tx_burst_left = max_entries_in_tx_burst;  in ena_com_write_sq_doorbell()
207 static inline void ena_com_comp_ack(struct ena_com_io_sq *io_sq, u16 elem)  in ena_com_comp_ack()  argument
209 	io_sq->next_to_comp += elem;  in ena_com_comp_ack()