RDMA/hns: Remove unused MTT functions

The MTT (Memory Translate Table) interface is no longer used to configure
the buffer address to BT (Base Address Table) that requires driver
mapping.  Because the MTT is not compatible with multi-hop addressing of
the hip08, it is replaced by MTR (Memory Translate Region) interface, and
all the MTT functions should be removed.

Link: https://lore.kernel.org/r/1588071823-40200-3-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

1 files changed, 0 insertions, 105 deletions

diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.c b/drivers/infiniband/hw/hns/hns_roce_hem.c
index a245e753afe9..37d101eec181 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hem.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hem.c
@@ -75,18 +75,6 @@ bool hns_roce_check_whether_mhop(struct hns_roce_dev *hr_dev, u32 type)
 	case HEM_TYPE_CQC_TIMER:
 		hop_num = hr_dev->caps.cqc_timer_hop_num;
 		break;
-	case HEM_TYPE_CQE:
-		hop_num = hr_dev->caps.cqe_hop_num;
-		break;
-	case HEM_TYPE_MTT:
-		hop_num = hr_dev->caps.mtt_hop_num;
-		break;
-	case HEM_TYPE_SRQWQE:
-		hop_num = hr_dev->caps.srqwqe_hop_num;
-		break;
-	case HEM_TYPE_IDX:
-		hop_num = hr_dev->caps.idx_hop_num;
-		break;
 	default:
 		return false;
 	}
@@ -195,38 +183,6 @@ static int get_hem_table_config(struct hns_roce_dev *hr_dev,
 		mhop->ba_l0_num = hr_dev->caps.srqc_bt_num;
 		mhop->hop_num = hr_dev->caps.srqc_hop_num;
 		break;
-	case HEM_TYPE_MTT:
-		mhop->buf_chunk_size = 1 << (hr_dev->caps.mtt_buf_pg_sz
-					     + PAGE_SHIFT);
-		mhop->bt_chunk_size = 1 << (hr_dev->caps.mtt_ba_pg_sz
-					     + PAGE_SHIFT);
-		mhop->ba_l0_num = mhop->bt_chunk_size / BA_BYTE_LEN;
-		mhop->hop_num = hr_dev->caps.mtt_hop_num;
-		break;
-	case HEM_TYPE_CQE:
-		mhop->buf_chunk_size = 1 << (hr_dev->caps.cqe_buf_pg_sz
-					     + PAGE_SHIFT);
-		mhop->bt_chunk_size = 1 << (hr_dev->caps.cqe_ba_pg_sz
-					     + PAGE_SHIFT);
-		mhop->ba_l0_num = mhop->bt_chunk_size / BA_BYTE_LEN;
-		mhop->hop_num = hr_dev->caps.cqe_hop_num;
-		break;
-	case HEM_TYPE_SRQWQE:
-		mhop->buf_chunk_size = 1 << (hr_dev->caps.srqwqe_buf_pg_sz
-					    + PAGE_SHIFT);
-		mhop->bt_chunk_size = 1 << (hr_dev->caps.srqwqe_ba_pg_sz
-					    + PAGE_SHIFT);
-		mhop->ba_l0_num = mhop->bt_chunk_size / BA_BYTE_LEN;
-		mhop->hop_num = hr_dev->caps.srqwqe_hop_num;
-		break;
-	case HEM_TYPE_IDX:
-		mhop->buf_chunk_size = 1 << (hr_dev->caps.idx_buf_pg_sz
-				       + PAGE_SHIFT);
-		mhop->bt_chunk_size = 1 << (hr_dev->caps.idx_ba_pg_sz
-				       + PAGE_SHIFT);
-		mhop->ba_l0_num = mhop->bt_chunk_size / BA_BYTE_LEN;
-		mhop->hop_num = hr_dev->caps.idx_hop_num;
-		break;
 	default:
 		dev_err(dev, "Table %d not support multi-hop addressing!\n",
 			type);
@@ -899,57 +855,6 @@ out:
 	return addr;
 }
 
-int hns_roce_table_get_range(struct hns_roce_dev *hr_dev,
-			     struct hns_roce_hem_table *table,
-			     unsigned long start, unsigned long end)
-{
-	struct hns_roce_hem_mhop mhop;
-	unsigned long inc = table->table_chunk_size / table->obj_size;
-	unsigned long i = 0;
-	int ret;
-
-	if (hns_roce_check_whether_mhop(hr_dev, table->type)) {
-		ret = hns_roce_calc_hem_mhop(hr_dev, table, NULL, &mhop);
-		if (ret)
-			goto fail;
-		inc = mhop.bt_chunk_size / table->obj_size;
-	}
-
-	/* Allocate MTT entry memory according to chunk(128K) */
-	for (i = start; i <= end; i += inc) {
-		ret = hns_roce_table_get(hr_dev, table, i);
-		if (ret)
-			goto fail;
-	}
-
-	return 0;
-
-fail:
-	while (i > start) {
-		i -= inc;
-		hns_roce_table_put(hr_dev, table, i);
-	}
-	return ret;
-}
-
-void hns_roce_table_put_range(struct hns_roce_dev *hr_dev,
-			      struct hns_roce_hem_table *table,
-			      unsigned long start, unsigned long end)
-{
-	struct hns_roce_hem_mhop mhop;
-	unsigned long inc = table->table_chunk_size / table->obj_size;
-	unsigned long i;
-
-	if (hns_roce_check_whether_mhop(hr_dev, table->type)) {
-		if (hns_roce_calc_hem_mhop(hr_dev, table, NULL, &mhop))
-			return;
-		inc = mhop.bt_chunk_size / table->obj_size;
-	}
-
-	for (i = start; i <= end; i += inc)
-		hns_roce_table_put(hr_dev, table, i);
-}
-
 int hns_roce_init_hem_table(struct hns_roce_dev *hr_dev,
 			    struct hns_roce_hem_table *table, u32 type,
 			    unsigned long obj_size, unsigned long nobj,
@@ -1112,12 +1017,6 @@ void hns_roce_cleanup_hem_table(struct hns_roce_dev *hr_dev,
 
 void hns_roce_cleanup_hem(struct hns_roce_dev *hr_dev)
 {
-	if ((hr_dev->caps.num_idx_segs))
-		hns_roce_cleanup_hem_table(hr_dev,
-					   &hr_dev->mr_table.mtt_idx_table);
-	if (hr_dev->caps.num_srqwqe_segs)
-		hns_roce_cleanup_hem_table(hr_dev,
-					   &hr_dev->mr_table.mtt_srqwqe_table);
 	if (hr_dev->caps.srqc_entry_sz)
 		hns_roce_cleanup_hem_table(hr_dev,
 					   &hr_dev->srq_table.table);
@@ -1137,10 +1036,6 @@ void hns_roce_cleanup_hem(struct hns_roce_dev *hr_dev)
 	hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qp_table.irrl_table);
 	hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qp_table.qp_table);
 	hns_roce_cleanup_hem_table(hr_dev, &hr_dev->mr_table.mtpt_table);
-	if (hns_roce_check_whether_mhop(hr_dev, HEM_TYPE_CQE))
-		hns_roce_cleanup_hem_table(hr_dev,
-					   &hr_dev->mr_table.mtt_cqe_table);
-	hns_roce_cleanup_hem_table(hr_dev, &hr_dev->mr_table.mtt_table);
 }
 
 struct roce_hem_item {