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-rw-r--r--drivers/scsi/elx/libefc/efc_sm.h197
1 files changed, 197 insertions, 0 deletions
diff --git a/drivers/scsi/elx/libefc/efc_sm.h b/drivers/scsi/elx/libefc/efc_sm.h
new file mode 100644
index 000000000..e26867b4d
--- /dev/null
+++ b/drivers/scsi/elx/libefc/efc_sm.h
@@ -0,0 +1,197 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2021 Broadcom. All Rights Reserved. The term
+ * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
+ *
+ */
+
+/**
+ * Generic state machine framework declarations.
+ */
+
+#ifndef _EFC_SM_H
+#define _EFC_SM_H
+
+struct efc_sm_ctx;
+
+/* State Machine events */
+enum efc_sm_event {
+ /* Common Events */
+ EFC_EVT_ENTER,
+ EFC_EVT_REENTER,
+ EFC_EVT_EXIT,
+ EFC_EVT_SHUTDOWN,
+ EFC_EVT_ALL_CHILD_NODES_FREE,
+ EFC_EVT_RESUME,
+ EFC_EVT_TIMER_EXPIRED,
+
+ /* Domain Events */
+ EFC_EVT_RESPONSE,
+ EFC_EVT_ERROR,
+
+ EFC_EVT_DOMAIN_FOUND,
+ EFC_EVT_DOMAIN_ALLOC_OK,
+ EFC_EVT_DOMAIN_ALLOC_FAIL,
+ EFC_EVT_DOMAIN_REQ_ATTACH,
+ EFC_EVT_DOMAIN_ATTACH_OK,
+ EFC_EVT_DOMAIN_ATTACH_FAIL,
+ EFC_EVT_DOMAIN_LOST,
+ EFC_EVT_DOMAIN_FREE_OK,
+ EFC_EVT_DOMAIN_FREE_FAIL,
+ EFC_EVT_HW_DOMAIN_REQ_ATTACH,
+ EFC_EVT_HW_DOMAIN_REQ_FREE,
+
+ /* Sport Events */
+ EFC_EVT_NPORT_ALLOC_OK,
+ EFC_EVT_NPORT_ALLOC_FAIL,
+ EFC_EVT_NPORT_ATTACH_OK,
+ EFC_EVT_NPORT_ATTACH_FAIL,
+ EFC_EVT_NPORT_FREE_OK,
+ EFC_EVT_NPORT_FREE_FAIL,
+ EFC_EVT_NPORT_TOPOLOGY_NOTIFY,
+ EFC_EVT_HW_PORT_ALLOC_OK,
+ EFC_EVT_HW_PORT_ALLOC_FAIL,
+ EFC_EVT_HW_PORT_ATTACH_OK,
+ EFC_EVT_HW_PORT_REQ_ATTACH,
+ EFC_EVT_HW_PORT_REQ_FREE,
+ EFC_EVT_HW_PORT_FREE_OK,
+
+ /* Login Events */
+ EFC_EVT_SRRS_ELS_REQ_OK,
+ EFC_EVT_SRRS_ELS_CMPL_OK,
+ EFC_EVT_SRRS_ELS_REQ_FAIL,
+ EFC_EVT_SRRS_ELS_CMPL_FAIL,
+ EFC_EVT_SRRS_ELS_REQ_RJT,
+ EFC_EVT_NODE_ATTACH_OK,
+ EFC_EVT_NODE_ATTACH_FAIL,
+ EFC_EVT_NODE_FREE_OK,
+ EFC_EVT_NODE_FREE_FAIL,
+ EFC_EVT_ELS_FRAME,
+ EFC_EVT_ELS_REQ_TIMEOUT,
+ EFC_EVT_ELS_REQ_ABORTED,
+ /* request an ELS IO be aborted */
+ EFC_EVT_ABORT_ELS,
+ /* ELS abort process complete */
+ EFC_EVT_ELS_ABORT_CMPL,
+
+ EFC_EVT_ABTS_RCVD,
+
+ /* node is not in the GID_PT payload */
+ EFC_EVT_NODE_MISSING,
+ /* node is allocated and in the GID_PT payload */
+ EFC_EVT_NODE_REFOUND,
+ /* node shutting down due to PLOGI recvd (implicit logo) */
+ EFC_EVT_SHUTDOWN_IMPLICIT_LOGO,
+ /* node shutting down due to LOGO recvd/sent (explicit logo) */
+ EFC_EVT_SHUTDOWN_EXPLICIT_LOGO,
+
+ EFC_EVT_PLOGI_RCVD,
+ EFC_EVT_FLOGI_RCVD,
+ EFC_EVT_LOGO_RCVD,
+ EFC_EVT_PRLI_RCVD,
+ EFC_EVT_PRLO_RCVD,
+ EFC_EVT_PDISC_RCVD,
+ EFC_EVT_FDISC_RCVD,
+ EFC_EVT_ADISC_RCVD,
+ EFC_EVT_RSCN_RCVD,
+ EFC_EVT_SCR_RCVD,
+ EFC_EVT_ELS_RCVD,
+
+ EFC_EVT_FCP_CMD_RCVD,
+
+ EFC_EVT_GIDPT_DELAY_EXPIRED,
+
+ /* SCSI Target Server events */
+ EFC_EVT_NODE_ACTIVE_IO_LIST_EMPTY,
+ EFC_EVT_NODE_DEL_INI_COMPLETE,
+ EFC_EVT_NODE_DEL_TGT_COMPLETE,
+ EFC_EVT_NODE_SESS_REG_OK,
+ EFC_EVT_NODE_SESS_REG_FAIL,
+
+ /* Must be last */
+ EFC_EVT_LAST
+};
+
+/* State Machine event name lookup array */
+#define EFC_SM_EVENT_NAME { \
+ [EFC_EVT_ENTER] = "EFC_EVT_ENTER", \
+ [EFC_EVT_REENTER] = "EFC_EVT_REENTER", \
+ [EFC_EVT_EXIT] = "EFC_EVT_EXIT", \
+ [EFC_EVT_SHUTDOWN] = "EFC_EVT_SHUTDOWN", \
+ [EFC_EVT_ALL_CHILD_NODES_FREE] = "EFC_EVT_ALL_CHILD_NODES_FREE",\
+ [EFC_EVT_RESUME] = "EFC_EVT_RESUME", \
+ [EFC_EVT_TIMER_EXPIRED] = "EFC_EVT_TIMER_EXPIRED", \
+ [EFC_EVT_RESPONSE] = "EFC_EVT_RESPONSE", \
+ [EFC_EVT_ERROR] = "EFC_EVT_ERROR", \
+ [EFC_EVT_DOMAIN_FOUND] = "EFC_EVT_DOMAIN_FOUND", \
+ [EFC_EVT_DOMAIN_ALLOC_OK] = "EFC_EVT_DOMAIN_ALLOC_OK", \
+ [EFC_EVT_DOMAIN_ALLOC_FAIL] = "EFC_EVT_DOMAIN_ALLOC_FAIL", \
+ [EFC_EVT_DOMAIN_REQ_ATTACH] = "EFC_EVT_DOMAIN_REQ_ATTACH", \
+ [EFC_EVT_DOMAIN_ATTACH_OK] = "EFC_EVT_DOMAIN_ATTACH_OK", \
+ [EFC_EVT_DOMAIN_ATTACH_FAIL] = "EFC_EVT_DOMAIN_ATTACH_FAIL", \
+ [EFC_EVT_DOMAIN_LOST] = "EFC_EVT_DOMAIN_LOST", \
+ [EFC_EVT_DOMAIN_FREE_OK] = "EFC_EVT_DOMAIN_FREE_OK", \
+ [EFC_EVT_DOMAIN_FREE_FAIL] = "EFC_EVT_DOMAIN_FREE_FAIL", \
+ [EFC_EVT_HW_DOMAIN_REQ_ATTACH] = "EFC_EVT_HW_DOMAIN_REQ_ATTACH",\
+ [EFC_EVT_HW_DOMAIN_REQ_FREE] = "EFC_EVT_HW_DOMAIN_REQ_FREE", \
+ [EFC_EVT_NPORT_ALLOC_OK] = "EFC_EVT_NPORT_ALLOC_OK", \
+ [EFC_EVT_NPORT_ALLOC_FAIL] = "EFC_EVT_NPORT_ALLOC_FAIL", \
+ [EFC_EVT_NPORT_ATTACH_OK] = "EFC_EVT_NPORT_ATTACH_OK", \
+ [EFC_EVT_NPORT_ATTACH_FAIL] = "EFC_EVT_NPORT_ATTACH_FAIL", \
+ [EFC_EVT_NPORT_FREE_OK] = "EFC_EVT_NPORT_FREE_OK", \
+ [EFC_EVT_NPORT_FREE_FAIL] = "EFC_EVT_NPORT_FREE_FAIL", \
+ [EFC_EVT_NPORT_TOPOLOGY_NOTIFY] = "EFC_EVT_NPORT_TOPOLOGY_NOTIFY",\
+ [EFC_EVT_HW_PORT_ALLOC_OK] = "EFC_EVT_HW_PORT_ALLOC_OK", \
+ [EFC_EVT_HW_PORT_ALLOC_FAIL] = "EFC_EVT_HW_PORT_ALLOC_FAIL", \
+ [EFC_EVT_HW_PORT_ATTACH_OK] = "EFC_EVT_HW_PORT_ATTACH_OK", \
+ [EFC_EVT_HW_PORT_REQ_ATTACH] = "EFC_EVT_HW_PORT_REQ_ATTACH", \
+ [EFC_EVT_HW_PORT_REQ_FREE] = "EFC_EVT_HW_PORT_REQ_FREE", \
+ [EFC_EVT_HW_PORT_FREE_OK] = "EFC_EVT_HW_PORT_FREE_OK", \
+ [EFC_EVT_SRRS_ELS_REQ_OK] = "EFC_EVT_SRRS_ELS_REQ_OK", \
+ [EFC_EVT_SRRS_ELS_CMPL_OK] = "EFC_EVT_SRRS_ELS_CMPL_OK", \
+ [EFC_EVT_SRRS_ELS_REQ_FAIL] = "EFC_EVT_SRRS_ELS_REQ_FAIL", \
+ [EFC_EVT_SRRS_ELS_CMPL_FAIL] = "EFC_EVT_SRRS_ELS_CMPL_FAIL", \
+ [EFC_EVT_SRRS_ELS_REQ_RJT] = "EFC_EVT_SRRS_ELS_REQ_RJT", \
+ [EFC_EVT_NODE_ATTACH_OK] = "EFC_EVT_NODE_ATTACH_OK", \
+ [EFC_EVT_NODE_ATTACH_FAIL] = "EFC_EVT_NODE_ATTACH_FAIL", \
+ [EFC_EVT_NODE_FREE_OK] = "EFC_EVT_NODE_FREE_OK", \
+ [EFC_EVT_NODE_FREE_FAIL] = "EFC_EVT_NODE_FREE_FAIL", \
+ [EFC_EVT_ELS_FRAME] = "EFC_EVT_ELS_FRAME", \
+ [EFC_EVT_ELS_REQ_TIMEOUT] = "EFC_EVT_ELS_REQ_TIMEOUT", \
+ [EFC_EVT_ELS_REQ_ABORTED] = "EFC_EVT_ELS_REQ_ABORTED", \
+ [EFC_EVT_ABORT_ELS] = "EFC_EVT_ABORT_ELS", \
+ [EFC_EVT_ELS_ABORT_CMPL] = "EFC_EVT_ELS_ABORT_CMPL", \
+ [EFC_EVT_ABTS_RCVD] = "EFC_EVT_ABTS_RCVD", \
+ [EFC_EVT_NODE_MISSING] = "EFC_EVT_NODE_MISSING", \
+ [EFC_EVT_NODE_REFOUND] = "EFC_EVT_NODE_REFOUND", \
+ [EFC_EVT_SHUTDOWN_IMPLICIT_LOGO] = "EFC_EVT_SHUTDOWN_IMPLICIT_LOGO",\
+ [EFC_EVT_SHUTDOWN_EXPLICIT_LOGO] = "EFC_EVT_SHUTDOWN_EXPLICIT_LOGO",\
+ [EFC_EVT_PLOGI_RCVD] = "EFC_EVT_PLOGI_RCVD", \
+ [EFC_EVT_FLOGI_RCVD] = "EFC_EVT_FLOGI_RCVD", \
+ [EFC_EVT_LOGO_RCVD] = "EFC_EVT_LOGO_RCVD", \
+ [EFC_EVT_PRLI_RCVD] = "EFC_EVT_PRLI_RCVD", \
+ [EFC_EVT_PRLO_RCVD] = "EFC_EVT_PRLO_RCVD", \
+ [EFC_EVT_PDISC_RCVD] = "EFC_EVT_PDISC_RCVD", \
+ [EFC_EVT_FDISC_RCVD] = "EFC_EVT_FDISC_RCVD", \
+ [EFC_EVT_ADISC_RCVD] = "EFC_EVT_ADISC_RCVD", \
+ [EFC_EVT_RSCN_RCVD] = "EFC_EVT_RSCN_RCVD", \
+ [EFC_EVT_SCR_RCVD] = "EFC_EVT_SCR_RCVD", \
+ [EFC_EVT_ELS_RCVD] = "EFC_EVT_ELS_RCVD", \
+ [EFC_EVT_FCP_CMD_RCVD] = "EFC_EVT_FCP_CMD_RCVD", \
+ [EFC_EVT_NODE_DEL_INI_COMPLETE] = "EFC_EVT_NODE_DEL_INI_COMPLETE",\
+ [EFC_EVT_NODE_DEL_TGT_COMPLETE] = "EFC_EVT_NODE_DEL_TGT_COMPLETE",\
+ [EFC_EVT_LAST] = "EFC_EVT_LAST", \
+}
+
+int
+efc_sm_post_event(struct efc_sm_ctx *ctx,
+ enum efc_sm_event evt, void *data);
+void
+efc_sm_transition(struct efc_sm_ctx *ctx,
+ void (*state)(struct efc_sm_ctx *ctx,
+ enum efc_sm_event evt, void *arg),
+ void *data);
+void efc_sm_disable(struct efc_sm_ctx *ctx);
+const char *efc_sm_event_name(enum efc_sm_event evt);
+
+#endif /* ! _EFC_SM_H */