diff options
| author | Shaobo Xu <xushaobo2@huawei.com> | 2017-08-30 12:23:06 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-09-27 15:34:56 +0300 |
| commit | a25d13cbe816a6f8a44382273d3fdd8276318777 (patch) | |
| tree | 32cce0dc612c6343d9feb360ea3385c3efa8bb6a /drivers/infiniband/hw/hns/hns_roce_hem.h | |
| parent | a680f2f376fe70bad85f350059be995c9dc2a802 (diff) | |
| download | linux-a25d13cbe816a6f8a44382273d3fdd8276318777.tar.xz | |
RDMA/hns: Add the interfaces to support multi hop addressing for the contexts in hip08
The contexts (QPC/MTPT/CQC/SRQC) in hip08 can support multi hop
addressing. The address of context can be retrieved by the
BT (Base Address Table) with multi hop addressing. The first hop
BT BA can be retrieved from the RAM in the chip by the bt_idx and
bt_num.
This patch is to add the interfaces in HEM to support multi hop
addressing for the contexts.
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_hem.h')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hem.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.h b/drivers/infiniband/hw/hns/hns_roce_hem.h index 435748858252..b064ef5fad08 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hem.h +++ b/drivers/infiniband/hw/hns/hns_roce_hem.h @@ -54,6 +54,15 @@ enum { ((256 - sizeof(struct list_head) - 2 * sizeof(int)) / \ (sizeof(struct scatterlist))) +#define check_whether_bt_num_3(type, hop_num) \ + (type < HEM_TYPE_MTT && hop_num == 2) + +#define check_whether_bt_num_2(type, hop_num) \ + (type < HEM_TYPE_MTT && hop_num == 1) + +#define check_whether_bt_num_1(type, hop_num) \ + (type < HEM_TYPE_MTT && hop_num == HNS_ROCE_HOP_NUM_0) + enum { HNS_ROCE_HEM_PAGE_SHIFT = 12, HNS_ROCE_HEM_PAGE_SIZE = 1 << HNS_ROCE_HEM_PAGE_SHIFT, @@ -77,6 +86,16 @@ struct hns_roce_hem_iter { int page_idx; }; +struct hns_roce_hem_mhop { + u32 hop_num; + u32 buf_chunk_size; + u32 bt_chunk_size; + u32 ba_l0_num; + u32 l0_idx;/* level 0 base address table index */ + u32 l1_idx;/* level 1 base address table index */ + u32 l2_idx;/* level 2 base address table index */ +}; + void hns_roce_free_hem(struct hns_roce_dev *hr_dev, struct hns_roce_hem *hem); int hns_roce_table_get(struct hns_roce_dev *hr_dev, struct hns_roce_hem_table *table, unsigned long obj); @@ -97,6 +116,10 @@ int hns_roce_init_hem_table(struct hns_roce_dev *hr_dev, void hns_roce_cleanup_hem_table(struct hns_roce_dev *hr_dev, struct hns_roce_hem_table *table); void hns_roce_cleanup_hem(struct hns_roce_dev *hr_dev); +int hns_roce_calc_hem_mhop(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, unsigned long *obj, + struct hns_roce_hem_mhop *mhop); +bool hns_roce_check_whether_mhop(struct hns_roce_dev *hr_dev, u32 type); static inline void hns_roce_hem_first(struct hns_roce_hem *hem, struct hns_roce_hem_iter *iter) |