RDMA/hns: Add or remove CQ's restrack attributes

Remove the resttrack attributes from the queue context held by ROCEE, and
add the resttrack attributes from the queue information maintained by the
driver.

For example:

$ rdma res show cq dev hns_0 cqn 14 -dd -jp
[ {
        "ifindex": 4,
        "ifname": "hns_0",
        "cqn": 14,
        "cqe": 127,
        "users": 1,
        "adaptive-moderation": false,
        "ctxn": 8,
        "pid": 1524,
        "comm": "ib_send_bw"
    },
    "drv_cq_depth": 128,
    "drv_cons_index": 0,
    "drv_cqe_size": 32,
    "drv_arm_sn": 1
}

Link: https://lore.kernel.org/r/20220822104455.2311053-3-liangwenpeng@huawei.comSigned-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

drivers/infiniband/hw/hns/hns_roce_restrack.c

@@ -9,72 +9,25 @@
 #include "hns_roce_device.h"
 #include "hns_roce_hw_v2.h"
 
-static int hns_roce_fill_cq(struct sk_buff *msg,
-			    struct hns_roce_v2_cq_context *context)
-{
-	if (rdma_nl_put_driver_u32(msg, "state",
-				   hr_reg_read(context, CQC_ARM_ST)))
-
-		goto err;
-
-	if (rdma_nl_put_driver_u32(msg, "ceqn",
-				   hr_reg_read(context, CQC_CEQN)))
-		goto err;
-
-	if (rdma_nl_put_driver_u32(msg, "cqn",
-				   hr_reg_read(context, CQC_CQN)))
-		goto err;
-
-	if (rdma_nl_put_driver_u32(msg, "hopnum",
-				   hr_reg_read(context, CQC_CQE_HOP_NUM)))
-		goto err;
-
-	if (rdma_nl_put_driver_u32(msg, "pi",
-				   hr_reg_read(context, CQC_CQ_PRODUCER_IDX)))
-		goto err;
-
-	if (rdma_nl_put_driver_u32(msg, "ci",
-				   hr_reg_read(context, CQC_CQ_CONSUMER_IDX)))
-		goto err;
-
-	if (rdma_nl_put_driver_u32(msg, "coalesce",
-				   hr_reg_read(context, CQC_CQ_MAX_CNT)))
-		goto err;
-
-	if (rdma_nl_put_driver_u32(msg, "period",
-				   hr_reg_read(context, CQC_CQ_PERIOD)))
-		goto err;
-
-	if (rdma_nl_put_driver_u32(msg, "cnt",
-				   hr_reg_read(context, CQC_CQE_CNT)))
-		goto err;
-
-	return 0;
-
-err:
-	return -EMSGSIZE;
-}
-
 int hns_roce_fill_res_cq_entry(struct sk_buff *msg, struct ib_cq *ib_cq)
 {
-	struct hns_roce_dev *hr_dev = to_hr_dev(ib_cq->device);
 	struct hns_roce_cq *hr_cq = to_hr_cq(ib_cq);
-	struct hns_roce_v2_cq_context context;
 	struct nlattr *table_attr;
-	int ret;
-
-	if (!hr_dev->hw->query_cqc)
-		return -EINVAL;
-
-	ret = hr_dev->hw->query_cqc(hr_dev, hr_cq->cqn, &context);
-	if (ret)
-		return -EINVAL;
 
 	table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER);
 	if (!table_attr)
 		return -EMSGSIZE;
 
-	if (hns_roce_fill_cq(msg, &context))
+	if (rdma_nl_put_driver_u32(msg, "cq_depth", hr_cq->cq_depth))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(msg, "cons_index", hr_cq->cons_index))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(msg, "cqe_size", hr_cq->cqe_size))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(msg, "arm_sn", hr_cq->arm_sn))
 		goto err;
 
 	nla_nest_end(msg, table_attr);