14  *      - Redistributions of source code must retain the above
18  *      - Redistributions in binary form must reproduce the above
51 	struct mlx4_en_dev *mdev = priv->mdev;  in mlx4_en_create_cq()
58 		return -ENOMEM;  in mlx4_en_create_cq()
61 	cq->size = entries;  in mlx4_en_create_cq()
62 	cq->buf_size = cq->size * mdev->dev->caps.cqe_size;  in mlx4_en_create_cq()
64 	cq->ring = ring;  in mlx4_en_create_cq()
65 	cq->type = mode;  in mlx4_en_create_cq()
66 	cq->vector = mdev->dev->caps.num_comp_vectors;  in mlx4_en_create_cq()
69 	 * dev->numa_node is used in mtt range allocation flow.  in mlx4_en_create_cq()
71 	set_dev_node(&mdev->dev->persist->pdev->dev, node);  in mlx4_en_create_cq()
72 	err = mlx4_alloc_hwq_res(mdev->dev, &cq->wqres,  in mlx4_en_create_cq()
73 				cq->buf_size);  in mlx4_en_create_cq()
74 	set_dev_node(&mdev->dev->persist->pdev->dev, mdev->dev->numa_node);  in mlx4_en_create_cq()
78 	cq->buf = (struct mlx4_cqe *)cq->wqres.buf.direct.buf;  in mlx4_en_create_cq()
92 	struct mlx4_en_dev *mdev = priv->mdev;  in mlx4_en_activate_cq()
97 	cq->dev = mdev->pndev[priv->port];  in mlx4_en_activate_cq()
98 	cq->mcq.set_ci_db  = cq->wqres.db.db;  in mlx4_en_activate_cq()
99 	cq->mcq.arm_db     = cq->wqres.db.db + 1;  in mlx4_en_activate_cq()
100 	*cq->mcq.set_ci_db = 0;  in mlx4_en_activate_cq()
101 	*cq->mcq.arm_db    = 0;  in mlx4_en_activate_cq()
102 	memset(cq->buf, 0, cq->buf_size);  in mlx4_en_activate_cq()
104 	if (cq->type == RX) {  in mlx4_en_activate_cq()
105 		if (!mlx4_is_eq_vector_valid(mdev->dev, priv->port,  in mlx4_en_activate_cq()
106 					     cq->vector)) {  in mlx4_en_activate_cq()
107 			cq->vector = cpumask_first(priv->rx_ring[cq->ring]->affinity_mask);  in mlx4_en_activate_cq()
109 			err = mlx4_assign_eq(mdev->dev, priv->port,  in mlx4_en_activate_cq()
110 					     &cq->vector);  in mlx4_en_activate_cq()
112 				mlx4_err(mdev, "Failed assigning an EQ to CQ vector %d\n",  in mlx4_en_activate_cq()
113 					 cq->vector);  in mlx4_en_activate_cq()
120 		cq->irq_desc =  in mlx4_en_activate_cq()
121 			irq_to_desc(mlx4_eq_get_irq(mdev->dev,  in mlx4_en_activate_cq()
122 						    cq->vector));  in mlx4_en_activate_cq()
125 		ring we assigned for the RX    */  in mlx4_en_activate_cq()
128 		cq_idx = cq_idx % priv->rx_ring_num;  in mlx4_en_activate_cq()
129 		rx_cq = priv->rx_cq[cq_idx];  in mlx4_en_activate_cq()
130 		cq->vector = rx_cq->vector;  in mlx4_en_activate_cq()
133 	if (cq->type == RX)  in mlx4_en_activate_cq()
134 		cq->size = priv->rx_ring[cq->ring]->actual_size;  in mlx4_en_activate_cq()
136 	if ((cq->type != RX && priv->hwtstamp_config.tx_type) ||  in mlx4_en_activate_cq()
137 	    (cq->type == RX && priv->hwtstamp_config.rx_filter))  in mlx4_en_activate_cq()
140 	cq->mcq.usage = MLX4_RES_USAGE_DRIVER;  in mlx4_en_activate_cq()
141 	err = mlx4_cq_alloc(mdev->dev, cq->size, &cq->wqres.mtt,  in mlx4_en_activate_cq()
142 			    &mdev->priv_uar, cq->wqres.db.dma, &cq->mcq,  in mlx4_en_activate_cq()
143 			    cq->vector, 0, timestamp_en, &cq->wqres.buf, false);  in mlx4_en_activate_cq()
147 	cq->mcq.event = mlx4_en_cq_event;  in mlx4_en_activate_cq()
149 	switch (cq->type) {  in mlx4_en_activate_cq()
151 		cq->mcq.comp = mlx4_en_tx_irq;  in mlx4_en_activate_cq()
152 		netif_tx_napi_add(cq->dev, &cq->napi, mlx4_en_poll_tx_cq,  in mlx4_en_activate_cq()
154 		napi_enable(&cq->napi);  in mlx4_en_activate_cq()
156 	case RX:  in mlx4_en_activate_cq()
157 		cq->mcq.comp = mlx4_en_rx_irq;  in mlx4_en_activate_cq()
158 		netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_rx_cq, 64);  in mlx4_en_activate_cq()
159 		napi_enable(&cq->napi);  in mlx4_en_activate_cq()
162 		/* nothing regarding napi, it's shared with rx ring */  in mlx4_en_activate_cq()
163 		cq->xdp_busy = false;  in mlx4_en_activate_cq()
171 		mlx4_release_eq(mdev->dev, cq->vector);  in mlx4_en_activate_cq()
172 	cq->vector = mdev->dev->caps.num_comp_vectors;  in mlx4_en_activate_cq()
178 	struct mlx4_en_dev *mdev = priv->mdev;  in mlx4_en_destroy_cq()
181 	mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);  in mlx4_en_destroy_cq()
182 	if (mlx4_is_eq_vector_valid(mdev->dev, priv->port, cq->vector) &&  in mlx4_en_destroy_cq()
183 	    cq->type == RX)  in mlx4_en_destroy_cq()
184 		mlx4_release_eq(priv->mdev->dev, cq->vector);  in mlx4_en_destroy_cq()
185 	cq->vector = 0;  in mlx4_en_destroy_cq()
186 	cq->buf_size = 0;  in mlx4_en_destroy_cq()
187 	cq->buf = NULL;  in mlx4_en_destroy_cq()
194 	if (cq->type != TX_XDP) {  in mlx4_en_deactivate_cq()
195 		napi_disable(&cq->napi);  in mlx4_en_deactivate_cq()
196 		netif_napi_del(&cq->napi);  in mlx4_en_deactivate_cq()
199 	mlx4_cq_free(priv->mdev->dev, &cq->mcq);  in mlx4_en_deactivate_cq()
202 /* Set rx cq moderation parameters */
205 	return mlx4_cq_modify(priv->mdev->dev, &cq->mcq,  in mlx4_en_set_cq_moder()
206 			      cq->moder_cnt, cq->moder_time);  in mlx4_en_set_cq_moder()
211 	mlx4_cq_arm(&cq->mcq, MLX4_CQ_DB_REQ_NOT, priv->mdev->uar_map,  in mlx4_en_arm_cq()
212 		    &priv->mdev->uar_lock);  in mlx4_en_arm_cq()