1 files changed, 59 insertions, 0 deletions
diff --git a/net/smc/smc_ism.h b/net/smc/smc_ism.h
new file mode 100644
index 0000000000..832b2f42d7
--- /dev/null
+++ b/net/smc/smc_ism.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Shared Memory Communications Direct over ISM devices (SMC-D)
+ *
+ * SMC-D ISM device structure definitions.
+ *
+ * Copyright IBM Corp. 2018
+ */
+
+#ifndef SMCD_ISM_H
+#define SMCD_ISM_H
+
+#include <linux/uio.h>
+#include <linux/types.h>
+#include <linux/mutex.h>
+
+#include "smc.h"
+
+struct smcd_dev_list {	/* List of SMCD devices */
+	struct list_head list;
+	struct mutex mutex;	/* Protects list of devices */
+};
+
+extern struct smcd_dev_list	smcd_dev_list;	/* list of smcd devices */
+
+struct smc_ism_vlanid {			/* VLAN id set on ISM device */
+	struct list_head list;
+	unsigned short vlanid;		/* Vlan id */
+	refcount_t refcnt;		/* Reference count */
+};
+
+struct smcd_dev;
+
+int smc_ism_cantalk(u64 peer_gid, unsigned short vlan_id, struct smcd_dev *dev);
+void smc_ism_set_conn(struct smc_connection *conn);
+void smc_ism_unset_conn(struct smc_connection *conn);
+int smc_ism_get_vlan(struct smcd_dev *dev, unsigned short vlan_id);
+int smc_ism_put_vlan(struct smcd_dev *dev, unsigned short vlan_id);
+int smc_ism_register_dmb(struct smc_link_group *lgr, int buf_size,
+			 struct smc_buf_desc *dmb_desc);
+int smc_ism_unregister_dmb(struct smcd_dev *dev, struct smc_buf_desc *dmb_desc);
+int smc_ism_signal_shutdown(struct smc_link_group *lgr);
+void smc_ism_get_system_eid(u8 **eid);
+u16 smc_ism_get_chid(struct smcd_dev *dev);
+bool smc_ism_is_v2_capable(void);
+int smc_ism_init(void);
+void smc_ism_exit(void);
+int smcd_nl_get_device(struct sk_buff *skb, struct netlink_callback *cb);
+
+static inline int smc_ism_write(struct smcd_dev *smcd, u64 dmb_tok,
+				unsigned int idx, bool sf, unsigned int offset,
+				void *data, size_t len)
+{
+	int rc;
+
+	rc = smcd->ops->move_data(smcd, dmb_tok, idx, sf, offset, data, len);
+	return rc < 0 ? rc : 0;
+}
+
+#endif