rdma/ib: Add trace point macros to display human-readable values

These can be shared with all kernel ULPs, and more can easily be
added as needed.

Note: checkpatch.pl has some heartburn with the TRACE_DEFINE_ENUM
macros and the LIST macros. These follow the same style as other
header files under include/tracing/events , thus should be
considered acceptable exceptions.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Acked-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/include/trace/events/rdma.h b/include/trace/events/rdma.h
new file mode 100644 (file)
index 0000000..aa19afc
--- /dev/null
+++ b/include/trace/events/rdma.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2017 Oracle.  All rights reserved.
+ */
+
+/*
+ * enum ib_event_type, from include/rdma/ib_verbs.h
+ */
+
+#define IB_EVENT_LIST                          \
+       ib_event(CQ_ERR)                        \
+       ib_event(QP_FATAL)                      \
+       ib_event(QP_REQ_ERR)                    \
+       ib_event(QP_ACCESS_ERR)                 \
+       ib_event(COMM_EST)                      \
+       ib_event(SQ_DRAINED)                    \
+       ib_event(PATH_MIG)                      \
+       ib_event(PATH_MIG_ERR)                  \
+       ib_event(DEVICE_FATAL)                  \
+       ib_event(PORT_ACTIVE)                   \
+       ib_event(PORT_ERR)                      \
+       ib_event(LID_CHANGE)                    \
+       ib_event(PKEY_CHANGE)                   \
+       ib_event(SM_CHANGE)                     \
+       ib_event(SRQ_ERR)                       \
+       ib_event(SRQ_LIMIT_REACHED)             \
+       ib_event(QP_LAST_WQE_REACHED)           \
+       ib_event(CLIENT_REREGISTER)             \
+       ib_event(GID_CHANGE)                    \
+       ib_event_end(WQ_FATAL)
+
+#undef ib_event
+#undef ib_event_end
+
+#define ib_event(x)            TRACE_DEFINE_ENUM(IB_EVENT_##x);
+#define ib_event_end(x)                TRACE_DEFINE_ENUM(IB_EVENT_##x);
+
+IB_EVENT_LIST
+
+#undef ib_event
+#undef ib_event_end
+
+#define ib_event(x)            { IB_EVENT_##x, #x },
+#define ib_event_end(x)                { IB_EVENT_##x, #x }
+
+#define rdma_show_ib_event(x) \
+               __print_symbolic(x, IB_EVENT_LIST)
+
+/*
+ * enum ib_wc_status type, from include/rdma/ib_verbs.h
+ */
+#define IB_WC_STATUS_LIST                      \
+       ib_wc_status(SUCCESS)                   \
+       ib_wc_status(LOC_LEN_ERR)               \
+       ib_wc_status(LOC_QP_OP_ERR)             \
+       ib_wc_status(LOC_EEC_OP_ERR)            \
+       ib_wc_status(LOC_PROT_ERR)              \
+       ib_wc_status(WR_FLUSH_ERR)              \
+       ib_wc_status(MW_BIND_ERR)               \
+       ib_wc_status(BAD_RESP_ERR)              \
+       ib_wc_status(LOC_ACCESS_ERR)            \
+       ib_wc_status(REM_INV_REQ_ERR)           \
+       ib_wc_status(REM_ACCESS_ERR)            \
+       ib_wc_status(REM_OP_ERR)                \
+       ib_wc_status(RETRY_EXC_ERR)             \
+       ib_wc_status(RNR_RETRY_EXC_ERR)         \
+       ib_wc_status(LOC_RDD_VIOL_ERR)          \
+       ib_wc_status(REM_INV_RD_REQ_ERR)        \
+       ib_wc_status(REM_ABORT_ERR)             \
+       ib_wc_status(INV_EECN_ERR)              \
+       ib_wc_status(INV_EEC_STATE_ERR)         \
+       ib_wc_status(FATAL_ERR)                 \
+       ib_wc_status(RESP_TIMEOUT_ERR)          \
+       ib_wc_status_end(GENERAL_ERR)
+
+#undef ib_wc_status
+#undef ib_wc_status_end
+
+#define ib_wc_status(x)                TRACE_DEFINE_ENUM(IB_WC_##x);
+#define ib_wc_status_end(x)    TRACE_DEFINE_ENUM(IB_WC_##x);
+
+IB_WC_STATUS_LIST
+
+#undef ib_wc_status
+#undef ib_wc_status_end
+
+#define ib_wc_status(x)                { IB_WC_##x, #x },
+#define ib_wc_status_end(x)    { IB_WC_##x, #x }
+
+#define rdma_show_wc_status(x) \
+               __print_symbolic(x, IB_WC_STATUS_LIST)
+
+/*
+ * enum rdma_cm_event_type, from include/rdma/rdma_cm.h
+ */
+#define RDMA_CM_EVENT_LIST                     \
+       rdma_cm_event(ADDR_RESOLVED)            \
+       rdma_cm_event(ADDR_ERROR)               \
+       rdma_cm_event(ROUTE_RESOLVED)           \
+       rdma_cm_event(ROUTE_ERROR)              \
+       rdma_cm_event(CONNECT_REQUEST)          \
+       rdma_cm_event(CONNECT_RESPONSE)         \
+       rdma_cm_event(CONNECT_ERROR)            \
+       rdma_cm_event(UNREACHABLE)              \
+       rdma_cm_event(REJECTED)                 \
+       rdma_cm_event(ESTABLISHED)              \
+       rdma_cm_event(DISCONNECTED)             \
+       rdma_cm_event(DEVICE_REMOVAL)           \
+       rdma_cm_event(MULTICAST_JOIN)           \
+       rdma_cm_event(MULTICAST_ERROR)          \
+       rdma_cm_event(ADDR_CHANGE)              \
+       rdma_cm_event_end(TIMEWAIT_EXIT)
+
+#undef rdma_cm_event
+#undef rdma_cm_event_end
+
+#define rdma_cm_event(x)       TRACE_DEFINE_ENUM(RDMA_CM_EVENT_##x);
+#define rdma_cm_event_end(x)   TRACE_DEFINE_ENUM(RDMA_CM_EVENT_##x);
+
+RDMA_CM_EVENT_LIST
+
+#undef rdma_cm_event
+#undef rdma_cm_event_end
+
+#define rdma_cm_event(x)       { RDMA_CM_EVENT_##x, #x },
+#define rdma_cm_event_end(x)   { RDMA_CM_EVENT_##x, #x }
+
+#define rdma_show_cm_event(x) \
+               __print_symbolic(x, RDMA_CM_EVENT_LIST)