IB/ehca: QP code restructuring in preparation for SRQ

- Replace init_qp_queues() by a shorter init_qp_queue(), eliminating
  duplicate code.

- hipz_h_alloc_resource_qp() doesn't need a pointer to struct ehca_qp any
  longer. All input and output data is transferred through the parms
  parameter.

- Change the interface to also support SRQ.

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 39 insertions, 7 deletions

diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h
index 35d948f2502c..6e75db68996e 100644
--- a/drivers/infiniband/hw/ehca/ehca_classes.h
+++ b/drivers/infiniband/hw/ehca/ehca_classes.h
@@ -322,14 +322,49 @@ struct ehca_alloc_cq_parms {
         struct ipz_eq_handle eq_handle;
 };
 
+enum ehca_service_type {
+        ST_RC  = 0,
+        ST_UC  = 1,
+        ST_RD  = 2,
+        ST_UD  = 3,
+};
+
+enum ehca_ext_qp_type {
+        EQPT_NORMAL    = 0,
+        EQPT_LLQP      = 1,
+        EQPT_SRQBASE   = 2,
+        EQPT_SRQ       = 3,
+};
+
+enum ehca_ll_comp_flags {
+        LLQP_SEND_COMP = 0x20,
+        LLQP_RECV_COMP = 0x40,
+        LLQP_COMP_MASK = 0x60,
+};
+
 struct ehca_alloc_qp_parms {
-        int servicetype;
+/* input parameters */
+        enum ehca_service_type servicetype;
         int sigtype;
-        int daqp_ctrl;
-        int max_send_sge;
-        int max_recv_sge;
+        enum ehca_ext_qp_type ext_type;
+        enum ehca_ll_comp_flags ll_comp_flags;
+
+        int max_send_wr, max_recv_wr;
+        int max_send_sge, max_recv_sge;
         int ud_av_l_key_ctl;
 
+        u32 token;
+        struct ipz_eq_handle eq_handle;
+        struct ipz_pd pd;
+        struct ipz_cq_handle send_cq_handle, recv_cq_handle;
+
+        u32 srq_qpn, srq_token, srq_limit;
+
+/* output parameters */
+        u32 real_qp_num;
+        struct ipz_qp_handle qp_handle;
+        struct h_galpas galpas;
+
         u16 act_nr_send_wqes;
         u16 act_nr_recv_wqes;
         u8  act_nr_recv_sges;
@@ -337,9 +372,6 @@ struct ehca_alloc_qp_parms {
 
         u32 nr_rq_pages;
         u32 nr_sq_pages;
-
-        struct ipz_eq_handle ipz_eq_handle;
-        struct ipz_pd pd;
 };
 
 int ehca_cq_assign_qp(struct ehca_cq *cq, struct ehca_qp *qp);