net/mlx4/srq.c

42 void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type)
44 	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
49 	srq = radix_tree_lookup(&srq_table->tree, srqn & (dev->caps.num_srqs - 1));
56 		mlx4_warn(dev, "Async event for bogus SRQ %08x\n", srqn);
66 static int mlx4_SW2HW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
69 	return mlx4_cmd(dev, mailbox->dma, srq_num, 0,
74 static int mlx4_HW2SW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
77 	return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, srq_num,
82 static int mlx4_ARM_SRQ(struct mlx4_dev *dev, int srq_num, int limit_watermark)
84 	return mlx4_cmd(dev, limit_watermark, srq_num, 0, MLX4_CMD_ARM_SRQ,
88 static int mlx4_QUERY_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
91 	return mlx4_cmd_box(dev, 0, mailbox->dma, srq_num, 0, MLX4_CMD_QUERY_SRQ,
95 int __mlx4_srq_alloc_icm(struct mlx4_dev *dev, int *srqn)
97 	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
105 	err = mlx4_table_get(dev, &srq_table->table, *srqn);
109 	err = mlx4_table_get(dev, &srq_table->cmpt_table, *srqn);
115 	mlx4_table_put(dev, &srq_table->table, *srqn);
122 static int mlx4_srq_alloc_icm(struct mlx4_dev *dev, int *srqn)
127 	if (mlx4_is_mfunc(dev)) {
128 		err = mlx4_cmd_imm(dev, 0, &out_param, RES_SRQ,
137 	return __mlx4_srq_alloc_icm(dev, srqn);
140 void __mlx4_srq_free_icm(struct mlx4_dev *dev, int srqn)
142 	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
144 	mlx4_table_put(dev, &srq_table->cmpt_table, srqn);
145 	mlx4_table_put(dev, &srq_table->table, srqn);
149 static void mlx4_srq_free_icm(struct mlx4_dev *dev, int srqn)
153 	if (mlx4_is_mfunc(dev)) {
155 		if (mlx4_cmd(dev, in_param, RES_SRQ, RES_OP_RESERVE_AND_MAP,
158 			mlx4_warn(dev, "Failed freeing cq:%d\n", srqn);
161 	__mlx4_srq_free_icm(dev, srqn);
164 int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcd,
167 	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
173 	err = mlx4_srq_alloc_icm(dev, &srq->srqn);
183 	mailbox = mlx4_alloc_cmd_mailbox(dev);
199 	mtt_addr = mlx4_mtt_addr(dev, mtt);
205 	err = mlx4_SW2HW_SRQ(dev, mailbox, srq->srqn);
206 	mlx4_free_cmd_mailbox(dev, mailbox);
221 	mlx4_srq_free_icm(dev, srq->srqn);
226 void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq)
228 	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
231 	err = mlx4_HW2SW_SRQ(dev, NULL, srq->srqn);
233 		mlx4_warn(dev, "HW2SW_SRQ failed (%d) for SRQN %06x\n", err, srq->srqn);
243 	mlx4_srq_free_icm(dev, srq->srqn);
247 int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark)
249 	return mlx4_ARM_SRQ(dev, srq->srqn, limit_watermark);
253 int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark)
259 	mailbox = mlx4_alloc_cmd_mailbox(dev);
265 	err = mlx4_QUERY_SRQ(dev, mailbox, srq->srqn);
271 	mlx4_free_cmd_mailbox(dev, mailbox);
276 int mlx4_init_srq_table(struct mlx4_dev *dev)
278 	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
283 	if (mlx4_is_slave(dev))
286 	err = mlx4_bitmap_init(&srq_table->bitmap, dev->caps.num_srqs,
287 			       dev->caps.num_srqs - 1, dev->caps.reserved_srqs, 0);
294 void mlx4_cleanup_srq_table(struct mlx4_dev *dev)
296 	if (mlx4_is_slave(dev))
298 	mlx4_bitmap_cleanup(&mlx4_priv(dev)->srq_table.bitmap);
301 struct mlx4_srq *mlx4_srq_lookup(struct mlx4_dev *dev, u32 srqn)
303 	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
309 				srqn & (dev->caps.num_srqs - 1));