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Diffstat (limited to 'net/smc/smc_ism.h')
-rw-r--r--net/smc/smc_ism.h30
1 files changed, 29 insertions, 1 deletions
diff --git a/net/smc/smc_ism.h b/net/smc/smc_ism.h
index 832b2f42d79f..ffff40c30a06 100644
--- a/net/smc/smc_ism.h
+++ b/net/smc/smc_ism.h
@@ -15,6 +15,9 @@
#include "smc.h"
+#define SMC_VIRTUAL_ISM_CHID_MASK 0xFF00
+#define SMC_ISM_IDENT_MASK 0x00FFFF
+
struct smcd_dev_list { /* List of SMCD devices */
struct list_head list;
struct mutex mutex; /* Protects list of devices */
@@ -28,9 +31,16 @@ struct smc_ism_vlanid { /* VLAN id set on ISM device */
refcount_t refcnt; /* Reference count */
};
+struct smc_ism_seid {
+ u8 seid_string[24];
+ u8 serial_number[4];
+ u8 type[4];
+};
+
struct smcd_dev;
-int smc_ism_cantalk(u64 peer_gid, unsigned short vlan_id, struct smcd_dev *dev);
+int smc_ism_cantalk(struct smcd_gid *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);
@@ -56,4 +66,22 @@ static inline int smc_ism_write(struct smcd_dev *smcd, u64 dmb_tok,
return rc < 0 ? rc : 0;
}
+static inline bool __smc_ism_is_virtual(u16 chid)
+{
+ /* CHIDs in range of 0xFF00 to 0xFFFF are reserved
+ * for virtual ISM device.
+ *
+ * loopback-ism: 0xFFFF
+ * virtio-ism: 0xFF00 ~ 0xFFFE
+ */
+ return ((chid & 0xFF00) == 0xFF00);
+}
+
+static inline bool smc_ism_is_virtual(struct smcd_dev *smcd)
+{
+ u16 chid = smcd->ops->get_chid(smcd);
+
+ return __smc_ism_is_virtual(chid);
+}
+
#endif