Initial commit: OpenHarmony-v4.0-ReleaseOpenHarmony-v4.0-Release

1 files changed, 56 insertions, 0 deletions

diff --git a/net/smc/smc_ism.h b/net/smc/smc_ism.h
new file mode 100644
index 000000000..8048e09dd
--- /dev/null
+++ b/net/smc/smc_ism.h
@@ -0,0 +1,56 @@
+/* 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/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 */
+extern bool     smc_ism_v2_capable;     /* HW supports ISM V2 and thus
+                                         * System EID is defined
+                                         */
+
+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 smc_ism_position {       /* ISM device position to write to */
+        u64 token;              /* Token of DMB */
+        u32 offset;             /* Offset into DMBE */
+        u8 index;               /* Index of DMBE */
+        u8 signal;              /* Generate interrupt on owner side */
+};
+
+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_write(struct smcd_dev *dev, const struct smc_ism_position *pos,
+                  void *data, size_t len);
+int smc_ism_signal_shutdown(struct smc_link_group *lgr);
+void smc_ism_get_system_eid(struct smcd_dev *dev, u8 **eid);
+u16 smc_ism_get_chid(struct smcd_dev *dev);
+void smc_ism_init(void);
+#endif