59 static u32 octep_ctrl_mbox_circq_inc(u32 index, u32 inc, u32 sz)  in octep_ctrl_mbox_circq_inc()  argument
61 	return (index + inc) % sz;  in octep_ctrl_mbox_circq_inc()
64 static u32 octep_ctrl_mbox_circq_space(u32 pi, u32 ci, u32 sz)  in octep_ctrl_mbox_circq_space()  argument
66 	return sz - (abs(pi - ci) % sz);  in octep_ctrl_mbox_circq_space()
69 static u32 octep_ctrl_mbox_circq_depth(u32 pi, u32 ci, u32 sz)  in octep_ctrl_mbox_circq_depth()  argument
71 	return (abs(pi - ci) % sz);  in octep_ctrl_mbox_circq_depth()
109 	mbox->h2fq.sz = readl(OCTEP_CTRL_MBOX_H2FQ_SZ(mbox->barmem));  in octep_ctrl_mbox_init()
114 	mbox->f2hq.sz = readl(OCTEP_CTRL_MBOX_F2HQ_SZ(mbox->barmem));  in octep_ctrl_mbox_init()
119 			  mbox->h2fq.sz;  in octep_ctrl_mbox_init()
143 		*pi = octep_ctrl_mbox_circq_inc(*pi, w_sz, q->sz);  in octep_write_mbox_data()
146 		cp_sz = min((q->sz - *pi), w_sz);  in octep_write_mbox_data()
149 		*pi = octep_ctrl_mbox_circq_inc(*pi, cp_sz, q->sz);  in octep_write_mbox_data()
155 			*pi = octep_ctrl_mbox_circq_inc(*pi, w_sz, q->sz);  in octep_write_mbox_data()
178 	if (octep_ctrl_mbox_circq_space(pi, ci, q->sz) < (msg->hdr.s.sz + mbox_hdr_sz)) {  in octep_ctrl_mbox_send()
184 	buf_sz = msg->hdr.s.sz;  in octep_ctrl_mbox_send()
187 		w_sz = (sg->sz <= buf_sz) ? sg->sz : buf_sz;  in octep_ctrl_mbox_send()
208 		*ci = octep_ctrl_mbox_circq_inc(*ci, r_sz, q->sz);  in octep_read_mbox_data()
211 		cp_sz = min((q->sz - *ci), r_sz);  in octep_read_mbox_data()
214 		*ci = octep_ctrl_mbox_circq_inc(*ci, cp_sz, q->sz);  in octep_read_mbox_data()
220 			*ci = octep_ctrl_mbox_circq_inc(*ci, r_sz, q->sz);  in octep_read_mbox_data()
240 	q_depth = octep_ctrl_mbox_circq_depth(pi, ci, q->sz);  in octep_ctrl_mbox_recv()
247 	buf_sz = msg->hdr.s.sz;  in octep_ctrl_mbox_recv()
250 		r_sz = (sg->sz <= buf_sz) ? sg->sz : buf_sz;  in octep_ctrl_mbox_recv()