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RDMA/hns: Add TPQ link table support

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In hip08, the TPQ(Timer Poll Queue) should be extended
to host memory. This patch adds the support of TPQ.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
oulijun 2018-07-09 17:48:08 +08:00 committed by Jason Gunthorpe
parent 6b63597d35
commit ded58ff987
3 changed files with 31 additions and 1 deletions
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1
drivers/infiniband/hw/hns/hns_roce_device.h
View File

@ -722,6 +722,7 @@ struct hns_roce_caps {
u32 eqe_hop_num;
u32 sl_num;
u32 tsq_buf_pg_sz;
u32 tpq_buf_pg_sz;
u32 chunk_sz; /* chunk size in non multihop mode*/
u64 flags;
};

28
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
View File

@ -1251,6 +1251,10 @@ static int hns_roce_config_link_table(struct hns_roce_dev *hr_dev,
link_tbl = &priv->tsq;
opcode = HNS_ROCE_OPC_CFG_EXT_LLM;
break;
case TPQ_LINK_TABLE:
link_tbl = &priv->tpq;
opcode = HNS_ROCE_OPC_CFG_TMOUT_LLM;
break;
default:
return -EINVAL;
}
@ -1315,6 +1319,7 @@ static int hns_roce_init_link_table(struct hns_roce_dev *hr_dev,
struct device *dev = hr_dev->dev;
u32 buf_chk_sz;
dma_addr_t t;
int func_num = 1;
int pg_num_a;
int pg_num_b;
int pg_num;
@ -1328,6 +1333,12 @@ static int hns_roce_init_link_table(struct hns_roce_dev *hr_dev,
pg_num_a = hr_dev->caps.num_qps * 8 / buf_chk_sz;
pg_num_b = hr_dev->caps.sl_num * 4 + 2;
break;
case TPQ_LINK_TABLE:
link_tbl = &priv->tpq;
buf_chk_sz = 1 << (hr_dev->caps.tpq_buf_pg_sz + PAGE_SHIFT);
pg_num_a = hr_dev->caps.num_cqs * 4 / buf_chk_sz;
pg_num_b = 2 * 4 * func_num + 2;
break;
default:
return -EINVAL;
}
@ -1410,12 +1421,26 @@ static void hns_roce_free_link_table(struct hns_roce_dev *hr_dev,
static int hns_roce_v2_init(struct hns_roce_dev *hr_dev)
{
struct hns_roce_v2_priv *priv = hr_dev->priv;
int ret;
/* TSQ includes SQ doorbell and ack doorbell */
ret = hns_roce_init_link_table(hr_dev, TSQ_LINK_TABLE);
if (ret)
if (ret) {
dev_err(hr_dev->dev, "TSQ init failed, ret = %d.\n", ret);
return ret;
}
ret = hns_roce_init_link_table(hr_dev, TPQ_LINK_TABLE);
if (ret) {
dev_err(hr_dev->dev, "TPQ init failed, ret = %d.\n", ret);
goto err_tpq_init_failed;
}
return 0;
err_tpq_init_failed:
hns_roce_free_link_table(hr_dev, &priv->tsq);
return ret;
}
@ -1424,6 +1449,7 @@ static void hns_roce_v2_exit(struct hns_roce_dev *hr_dev)
{
struct hns_roce_v2_priv *priv = hr_dev->priv;
hns_roce_free_link_table(hr_dev, &priv->tpq);
hns_roce_free_link_table(hr_dev, &priv->tsq);
}

3
drivers/infiniband/hw/hns/hns_roce_hw_v2.h
View File

@ -204,6 +204,7 @@ enum hns_roce_opcode_type {
HNS_ROCE_OPC_QUERY_PF_RES = 0x8400,
HNS_ROCE_OPC_ALLOC_VF_RES = 0x8401,
HNS_ROCE_OPC_CFG_EXT_LLM = 0x8403,
HNS_ROCE_OPC_CFG_TMOUT_LLM = 0x8404,
HNS_ROCE_OPC_CFG_BT_ATTR = 0x8506,
};
@ -1339,6 +1340,7 @@ struct hns_roce_v2_cmq {
enum hns_roce_link_table_type {
TSQ_LINK_TABLE,
TPQ_LINK_TABLE,
};
struct hns_roce_link_table {
@ -1361,6 +1363,7 @@ struct hns_roce_link_table_entry {
struct hns_roce_v2_priv {
struct hns_roce_v2_cmq cmq;
struct hns_roce_link_table tsq;
struct hns_roce_link_table tpq;
};
struct hns_roce_eq_context {