!617 Support geting xrcd num from firmware

Merge Pull Request from: @stinft 
 
Support driver gets the num_xrcds and reserved_xrcds from firmware.
#I6WAZI 
 
Link:https://gitee.com/openeuler/kernel/pulls/617 

Reviewed-by: Chengchang Tang <tangchengchang@huawei.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> 

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -2310,9 +2310,6 @@ static void apply_func_caps(struct hns_roce_dev *hr_dev)
 	caps->qpc_timer_hop_num = HNS_ROCE_HOP_NUM_0;
 	caps->cqc_timer_hop_num = HNS_ROCE_HOP_NUM_0;
 
-	caps->num_xrcds = HNS_ROCE_V2_MAX_XRCD_NUM;
-	caps->reserved_xrcds = HNS_ROCE_V2_RSV_XRCD_NUM;
-
 	caps->num_mtt_segs = HNS_ROCE_V2_MAX_MTT_SEGS;
 	caps->num_srqwqe_segs = HNS_ROCE_V2_MAX_SRQWQE_SEGS;
 	caps->num_idx_segs = HNS_ROCE_V2_MAX_IDX_SEGS;
@@ -2440,6 +2437,7 @@ static int hns_roce_query_caps(struct hns_roce_dev *hr_dev)
 	caps->num_cqs = 1 << hr_reg_read(resp_c, PF_CAPS_C_NUM_CQS);
 	caps->gid_table_len[0] = hr_reg_read(resp_c, PF_CAPS_C_MAX_GID);
 	caps->max_cqes = 1 << hr_reg_read(resp_c, PF_CAPS_C_CQ_DEPTH);
+	caps->num_xrcds = 1 << hr_reg_read(resp_c, PF_CAPS_C_NUM_XRCDS);
 	caps->num_mtpts = 1 << hr_reg_read(resp_c, PF_CAPS_C_NUM_MRWS);
 	caps->num_qps = 1 << hr_reg_read(resp_c, PF_CAPS_C_NUM_QPS);
 	caps->max_qp_init_rdma = hr_reg_read(resp_c, PF_CAPS_C_MAX_ORD);
@@ -2461,6 +2459,7 @@ static int hns_roce_query_caps(struct hns_roce_dev *hr_dev)
 	caps->reserved_mrws = hr_reg_read(resp_e, PF_CAPS_E_RSV_MRWS);
 	caps->chunk_sz = 1 << hr_reg_read(resp_e, PF_CAPS_E_CHUNK_SIZE_SHIFT);
 	caps->reserved_cqs = hr_reg_read(resp_e, PF_CAPS_E_RSV_CQS);
+	caps->reserved_xrcds = hr_reg_read(resp_e, PF_CAPS_E_RSV_XRCDS);
 	caps->reserved_srqs = hr_reg_read(resp_e, PF_CAPS_E_RSV_SRQS);
 	caps->reserved_lkey = hr_reg_read(resp_e, PF_CAPS_E_RSV_LKEYS);
 

drivers/infiniband/hw/hns/hns_roce_hw_v2.h

@@ -42,8 +42,6 @@
 #define HNS_ROCE_V2_MAX_MTT_SEGS		0x1000000
 #define HNS_ROCE_V2_MAX_SRQWQE_SEGS		0x1000000
 #define HNS_ROCE_V2_MAX_IDX_SEGS		0x1000000
-#define HNS_ROCE_V2_MAX_XRCD_NUM		0x1000000
-#define HNS_ROCE_V2_RSV_XRCD_NUM		0
 
 #define HNS_ROCE_V3_SCCC_SZ			64
 #define HNS_ROCE_V3_GMV_ENTRY_SZ		32
@@ -1214,6 +1212,7 @@ struct hns_roce_query_pf_caps_c {
 #define PF_CAPS_C_NUM_CQS PF_CAPS_C_FIELD_LOC(51, 32)
 #define PF_CAPS_C_MAX_GID PF_CAPS_C_FIELD_LOC(60, 52)
 #define PF_CAPS_C_CQ_DEPTH PF_CAPS_C_FIELD_LOC(86, 64)
+#define PF_CAPS_C_NUM_XRCDS PF_CAPS_C_FIELD_LOC(91, 87)
 #define PF_CAPS_C_NUM_MRWS PF_CAPS_C_FIELD_LOC(115, 96)
 #define PF_CAPS_C_NUM_QPS PF_CAPS_C_FIELD_LOC(147, 128)
 #define PF_CAPS_C_MAX_ORD PF_CAPS_C_FIELD_LOC(155, 148)
@@ -1273,6 +1272,7 @@ struct hns_roce_query_pf_caps_e {
 #define PF_CAPS_E_RSV_MRWS PF_CAPS_E_FIELD_LOC(19, 0)
 #define PF_CAPS_E_CHUNK_SIZE_SHIFT PF_CAPS_E_FIELD_LOC(31, 20)
 #define PF_CAPS_E_RSV_CQS PF_CAPS_E_FIELD_LOC(51, 32)
+#define PF_CAPS_E_RSV_XRCDS PF_CAPS_E_FIELD_LOC(63, 52)
 #define PF_CAPS_E_RSV_SRQS PF_CAPS_E_FIELD_LOC(83, 64)
 #define PF_CAPS_E_RSV_LKEYS PF_CAPS_E_FIELD_LOC(115, 96)