12 void erdma_qp_llp_close(struct erdma_qp *qp)  in erdma_qp_llp_close()  argument
16 	down_write(&qp->state_lock);  in erdma_qp_llp_close()
18 	switch (qp->attrs.state) {  in erdma_qp_llp_close()
24 		erdma_modify_qp_internal(qp, &qp_attrs, ERDMA_QP_ATTR_STATE);  in erdma_qp_llp_close()
27 		qp->attrs.state = ERDMA_QP_STATE_IDLE;  in erdma_qp_llp_close()
33 	if (qp->cep) {  in erdma_qp_llp_close()
34 		erdma_cep_put(qp->cep);  in erdma_qp_llp_close()
35 		qp->cep = NULL;  in erdma_qp_llp_close()
38 	up_write(&qp->state_lock);  in erdma_qp_llp_close()
43 	struct erdma_qp *qp = find_qp_by_qpn(to_edev(ibdev), id);  in erdma_get_ibqp()  local
45 	if (qp)  in erdma_get_ibqp()
46 		return &qp->ibqp;  in erdma_get_ibqp()
51 static int erdma_modify_qp_state_to_rts(struct erdma_qp *qp,  in erdma_modify_qp_state_to_rts()  argument
56 	struct erdma_dev *dev = qp->dev;  in erdma_modify_qp_state_to_rts()
59 	struct erdma_cep *cep = qp->cep;  in erdma_modify_qp_state_to_rts()
76 	qp->attrs.state = ERDMA_QP_STATE_RTS;  in erdma_modify_qp_state_to_rts()
78 	tp = tcp_sk(qp->cep->sock->sk);  in erdma_modify_qp_state_to_rts()
83 	req.cfg = FIELD_PREP(ERDMA_CMD_MODIFY_QP_STATE_MASK, qp->attrs.state) |  in erdma_modify_qp_state_to_rts()
84 		  FIELD_PREP(ERDMA_CMD_MODIFY_QP_CC_MASK, qp->attrs.cc) |  in erdma_modify_qp_state_to_rts()
85 		  FIELD_PREP(ERDMA_CMD_MODIFY_QP_QPN_MASK, QP_ID(qp));  in erdma_modify_qp_state_to_rts()
87 	req.cookie = be32_to_cpu(qp->cep->mpa.ext_data.cookie);  in erdma_modify_qp_state_to_rts()
95 	if (qp->attrs.qp_type == ERDMA_QP_PASSIVE)  in erdma_modify_qp_state_to_rts()
96 		req.send_nxt += MPA_DEFAULT_HDR_LEN + qp->attrs.pd_len;  in erdma_modify_qp_state_to_rts()
102 static int erdma_modify_qp_state_to_stop(struct erdma_qp *qp,  in erdma_modify_qp_state_to_stop()  argument
106 	struct erdma_dev *dev = qp->dev;  in erdma_modify_qp_state_to_stop()
109 	qp->attrs.state = attrs->state;  in erdma_modify_qp_state_to_stop()
115 		  FIELD_PREP(ERDMA_CMD_MODIFY_QP_QPN_MASK, QP_ID(qp));  in erdma_modify_qp_state_to_stop()
120 int erdma_modify_qp_internal(struct erdma_qp *qp, struct erdma_qp_attrs *attrs,  in erdma_modify_qp_internal()  argument
132 	switch (qp->attrs.state) {  in erdma_modify_qp_internal()
136 			ret = erdma_modify_qp_state_to_rts(qp, attrs, mask);  in erdma_modify_qp_internal()
138 			qp->attrs.state = ERDMA_QP_STATE_ERROR;  in erdma_modify_qp_internal()
140 			if (qp->cep) {  in erdma_modify_qp_internal()
141 				erdma_cep_put(qp->cep);  in erdma_modify_qp_internal()
142 				qp->cep = NULL;  in erdma_modify_qp_internal()
144 			ret = erdma_modify_qp_state_to_stop(qp, attrs, mask);  in erdma_modify_qp_internal()
153 			ret = erdma_modify_qp_state_to_stop(qp, attrs, mask);  in erdma_modify_qp_internal()
159 			erdma_qp_cm_drop(qp);  in erdma_modify_qp_internal()
164 			qp->attrs.state = ERDMA_QP_STATE_ERROR;  in erdma_modify_qp_internal()
168 			qp->attrs.state = ERDMA_QP_STATE_IDLE;  in erdma_modify_qp_internal()
170 			ret = erdma_modify_qp_state_to_stop(qp, attrs, mask);  in erdma_modify_qp_internal()
171 			qp->attrs.state = ERDMA_QP_STATE_ERROR;  in erdma_modify_qp_internal()
180 	if (need_reflush && !ret && rdma_is_kernel_res(&qp->ibqp.res)) {  in erdma_modify_qp_internal()
181 		qp->flags |= ERDMA_QP_IN_FLUSHING;  in erdma_modify_qp_internal()
182 		mod_delayed_work(qp->dev->reflush_wq, &qp->reflush_dwork,  in erdma_modify_qp_internal()
191 	struct erdma_qp *qp = container_of(ref, struct erdma_qp, ref);  in erdma_qp_safe_free()  local
193 	complete(&qp->safe_free);  in erdma_qp_safe_free()
196 void erdma_qp_put(struct erdma_qp *qp)  in erdma_qp_put()  argument
198 	WARN_ON(kref_read(&qp->ref) < 1);  in erdma_qp_put()
199 	kref_put(&qp->ref, erdma_qp_safe_free);  in erdma_qp_put()
202 void erdma_qp_get(struct erdma_qp *qp)  in erdma_qp_get()  argument
204 	kref_get(&qp->ref);  in erdma_qp_get()
207 static int fill_inline_data(struct erdma_qp *qp,  in fill_inline_data()  argument
217 	data = get_queue_entry(qp->kern_qp.sq_buf, wqe_idx, qp->attrs.sq_size,  in fill_inline_data()
241 			data = get_queue_entry(qp->kern_qp.sq_buf, wqe_idx,  in fill_inline_data()
242 					       qp->attrs.sq_size, SQEBB_SHIFT);  in fill_inline_data()
254 static int fill_sgl(struct erdma_qp *qp, const struct ib_send_wr *send_wr,  in fill_sgl()  argument
261 	if (send_wr->num_sge > qp->dev->attrs.max_send_sge)  in fill_sgl()
270 		sgl = get_queue_entry(qp->kern_qp.sq_buf, wqe_idx,  in fill_sgl()
271 				      qp->attrs.sq_size, SQEBB_SHIFT);  in fill_sgl()
285 static int erdma_push_one_sqe(struct erdma_qp *qp, u16 *pi,  in erdma_push_one_sqe()  argument
289 	u32 idx = *pi & (qp->attrs.sq_size - 1);  in erdma_push_one_sqe()
304 	entry = get_queue_entry(qp->kern_qp.sq_buf, idx, qp->attrs.sq_size,  in erdma_push_one_sqe()
310 	qp->kern_qp.swr_tbl[idx] = send_wr->wr_id;  in erdma_push_one_sqe()
314 		((flags & IB_SEND_SIGNALED) || qp->kern_qp.sig_all) ? 1 : 0);  in erdma_push_one_sqe()
321 	wqe_hdr |= FIELD_PREP(ERDMA_SQE_HDR_QPN_MASK, QP_ID(qp));  in erdma_push_one_sqe()
365 		sge = get_queue_entry(qp->kern_qp.sq_buf, idx + 1,  in erdma_push_one_sqe()
366 				      qp->attrs.sq_size, SQEBB_SHIFT);  in erdma_push_one_sqe()
411 			memcpy(get_queue_entry(qp->kern_qp.sq_buf, idx + 1,  in erdma_push_one_sqe()
412 					       qp->attrs.sq_size, SQEBB_SHIFT),  in erdma_push_one_sqe()
447 		sge = get_queue_entry(qp->kern_qp.sq_buf, idx + 1,  in erdma_push_one_sqe()
448 				      qp->attrs.sq_size, SQEBB_SHIFT);  in erdma_push_one_sqe()
464 		ret = fill_inline_data(qp, send_wr, idx, sgl_offset,  in erdma_push_one_sqe()
471 		ret = fill_sgl(qp, send_wr, idx, sgl_offset, length_field);  in erdma_push_one_sqe()
490 static void kick_sq_db(struct erdma_qp *qp, u16 pi)  in kick_sq_db()  argument
492 	u64 db_data = FIELD_PREP(ERDMA_SQE_HDR_QPN_MASK, QP_ID(qp)) |  in kick_sq_db()
495 	*(u64 *)qp->kern_qp.sq_db_info = db_data;  in kick_sq_db()
496 	writeq(db_data, qp->kern_qp.hw_sq_db);  in kick_sq_db()
502 	struct erdma_qp *qp = to_eqp(ibqp);  in erdma_post_send()  local
511 	spin_lock_irqsave(&qp->lock, flags);  in erdma_post_send()
512 	sq_pi = qp->kern_qp.sq_pi;  in erdma_post_send()
515 		if ((u16)(sq_pi - qp->kern_qp.sq_ci) >= qp->attrs.sq_size) {  in erdma_post_send()
521 		ret = erdma_push_one_sqe(qp, &sq_pi, wr);  in erdma_post_send()
526 		qp->kern_qp.sq_pi = sq_pi;  in erdma_post_send()
527 		kick_sq_db(qp, sq_pi);  in erdma_post_send()
531 	spin_unlock_irqrestore(&qp->lock, flags);  in erdma_post_send()
533 	if (unlikely(qp->flags & ERDMA_QP_IN_FLUSHING))  in erdma_post_send()
534 		mod_delayed_work(qp->dev->reflush_wq, &qp->reflush_dwork,  in erdma_post_send()
540 static int erdma_post_recv_one(struct erdma_qp *qp,  in erdma_post_recv_one()  argument
544 		get_queue_entry(qp->kern_qp.rq_buf, qp->kern_qp.rq_pi,  in erdma_post_recv_one()
545 				qp->attrs.rq_size, RQE_SHIFT);  in erdma_post_recv_one()
547 	rqe->qe_idx = cpu_to_le16(qp->kern_qp.rq_pi + 1);  in erdma_post_recv_one()
548 	rqe->qpn = cpu_to_le32(QP_ID(qp));  in erdma_post_recv_one()
560 	*(u64 *)qp->kern_qp.rq_db_info = *(u64 *)rqe;  in erdma_post_recv_one()
561 	writeq(*(u64 *)rqe, qp->kern_qp.hw_rq_db);  in erdma_post_recv_one()
563 	qp->kern_qp.rwr_tbl[qp->kern_qp.rq_pi & (qp->attrs.rq_size - 1)] =  in erdma_post_recv_one()
565 	qp->kern_qp.rq_pi++;  in erdma_post_recv_one()
574 	struct erdma_qp *qp = to_eqp(ibqp);  in erdma_post_recv()  local
578 	spin_lock_irqsave(&qp->lock, flags);  in erdma_post_recv()
581 		ret = erdma_post_recv_one(qp, wr);  in erdma_post_recv()
589 	spin_unlock_irqrestore(&qp->lock, flags);  in erdma_post_recv()
591 	if (unlikely(qp->flags & ERDMA_QP_IN_FLUSHING))  in erdma_post_recv()
592 		mod_delayed_work(qp->dev->reflush_wq, &qp->reflush_dwork,  in erdma_post_recv()