RDMA/hns: Add XRC subtype in QPC and XRC type in SRQC

A field to distuiguish basic SRQ from XRC SRQ in SRQC and a field in QPC
to determine whether a QP is XRC TGT QP or XRC INI QP are missing.

Fixes: 32548870 ("RDMA/hns: Add support for XRC on HIP09")
Link: https://lore.kernel.org/r/1617354454-47840-8-git-send-email-liweihang@huawei.comSigned-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -4098,9 +4098,13 @@ static void modify_qp_reset_to_init(struct ib_qp *ibqp,
 	roce_set_field(context->byte_24_mtu_tc, V2_QPC_BYTE_24_VLAN_ID_M,
 		       V2_QPC_BYTE_24_VLAN_ID_S, 0xfff);
 
-	if (ibqp->qp_type == IB_QPT_XRC_TGT)
+	if (ibqp->qp_type == IB_QPT_XRC_TGT) {
 		context->qkey_xrcd = cpu_to_le32(hr_qp->xrcdn);
 
+		roce_set_bit(context->byte_80_rnr_rx_cqn,
+			     V2_QPC_BYTE_80_XRC_QP_TYPE_S, 1);
+	}
+
 	if (hr_qp->en_flags & HNS_ROCE_QP_CAP_RQ_RECORD_DB)
 		roce_set_bit(context->byte_68_rq_db,
 			     V2_QPC_BYTE_68_RQ_RECORD_EN_S, 1);
@@ -4158,11 +4162,6 @@ static void modify_qp_init_to_init(struct ib_qp *ibqp,
 	roce_set_field(qpc_mask->byte_4_sqpn_tst, V2_QPC_BYTE_4_TST_M,
 		       V2_QPC_BYTE_4_TST_S, 0);
 
-	if (ibqp->qp_type == IB_QPT_XRC_TGT) {
-		context->qkey_xrcd = cpu_to_le32(hr_qp->xrcdn);
-		qpc_mask->qkey_xrcd = 0;
-	}
-
 	roce_set_field(context->byte_16_buf_ba_pg_sz, V2_QPC_BYTE_16_PD_M,
 		       V2_QPC_BYTE_16_PD_S, get_pdn(ibqp->pd));
 
@@ -5595,6 +5594,8 @@ static int hns_roce_v2_write_srqc(struct hns_roce_srq *srq, void *mb_buf)
 	}
 
 	hr_reg_write(ctx, SRQC_SRQ_ST, 1);
+	hr_reg_write(ctx, SRQC_SRQ_TYPE,
+		     !!(srq->ibsrq.srq_type == IB_SRQT_XRC));
 	hr_reg_write(ctx, SRQC_PD, to_hr_pd(srq->ibsrq.pd)->pdn);
 	hr_reg_write(ctx, SRQC_SRQN, srq->srqn);
 	hr_reg_write(ctx, SRQC_XRCD, srq->xrcdn);

drivers/infiniband/hw/hns/hns_roce_hw_v2.h

@@ -414,7 +414,8 @@ struct hns_roce_srq_context {
 #define SRQC_CONSUMER_IDX SRQC_FIELD_LOC(127, 112)
 #define SRQC_WQE_BT_BA_L SRQC_FIELD_LOC(159, 128)
 #define SRQC_WQE_BT_BA_H SRQC_FIELD_LOC(188, 160)
-#define SRQC_RSV2 SRQC_FIELD_LOC(191, 189)
+#define SRQC_RSV2 SRQC_FIELD_LOC(190, 189)
+#define SRQC_SRQ_TYPE SRQC_FIELD_LOC(191, 191)
 #define SRQC_PD SRQC_FIELD_LOC(215, 192)
 #define SRQC_RQWS SRQC_FIELD_LOC(219, 216)
 #define SRQC_RSV3 SRQC_FIELD_LOC(223, 220)
@@ -714,6 +715,8 @@ struct hns_roce_v2_qp_context {
 #define	V2_QPC_BYTE_80_RX_CQN_S 0
 #define V2_QPC_BYTE_80_RX_CQN_M GENMASK(23, 0)
 
+#define V2_QPC_BYTE_80_XRC_QP_TYPE_S 24
+
 #define	V2_QPC_BYTE_80_MIN_RNR_TIME_S 27
 #define V2_QPC_BYTE_80_MIN_RNR_TIME_M GENMASK(31, 27)