IB/ehca: add Shared Receive Queue support
Support SRQs on eHCA2. Since an SRQ is a QP for eHCA2, a lot of code
(structures, create, destroy, post_recv) can be shared between QP and SRQ.
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h
index 6e75db6..9d689ae 100644
--- a/drivers/infiniband/hw/ehca/ehca_classes.h
+++ b/drivers/infiniband/hw/ehca/ehca_classes.h
@@ -5,6 +5,7 @@
*
* Authors: Heiko J Schick <schickhj@de.ibm.com>
* Christoph Raisch <raisch@de.ibm.com>
+ * Joachim Fenkes <fenkes@de.ibm.com>
*
* Copyright (c) 2005 IBM Corporation
*
@@ -117,9 +118,20 @@
u32 ownpid;
};
+enum ehca_ext_qp_type {
+ EQPT_NORMAL = 0,
+ EQPT_LLQP = 1,
+ EQPT_SRQBASE = 2,
+ EQPT_SRQ = 3,
+};
+
struct ehca_qp {
- struct ib_qp ib_qp;
+ union {
+ struct ib_qp ib_qp;
+ struct ib_srq ib_srq;
+ };
u32 qp_type;
+ enum ehca_ext_qp_type ext_type;
struct ipz_queue ipz_squeue;
struct ipz_queue ipz_rqueue;
struct h_galpas galpas;
@@ -142,6 +154,10 @@
u32 mm_count_galpa;
};
+#define IS_SRQ(qp) (qp->ext_type == EQPT_SRQ)
+#define HAS_SQ(qp) (qp->ext_type != EQPT_SRQ)
+#define HAS_RQ(qp) (qp->ext_type != EQPT_SRQBASE)
+
/* must be power of 2 */
#define QP_HASHTAB_LEN 8
@@ -307,6 +323,7 @@
u32 qp_num;
u32 token;
u32 qp_type;
+ u32 ext_type;
u32 qkey;
/* qp_num assigned by ehca: sqp0/1 may have got different numbers */
u32 real_qp_num;
@@ -329,13 +346,6 @@
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,