IB/opa-vnic: VNIC Ethernet Management (EM) structure definitions

Define VNIC EM MAD structures and the associated macros. These structures
are used for information exchange between VNIC EM agent (EMA) on the host
and the Ethernet manager. These include the virtual ethernet switch (vesw)
port information, vesw port mac table, summay and error counters,
vesw port interface mac lists and the EMA trap.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/ulp/opa_vnic/opa_vnic_internal.h

@@ -72,6 +72,8 @@ struct opa_vnic_adapter;
 
 /**
  * struct __opa_vesw_info - OPA vnic virtual switch info
+ *
+ * Same as opa_vesw_info without bitwise attribute.
  */
 struct __opa_vesw_info {
 	u16  fabric_id;
@@ -95,6 +97,8 @@ struct __opa_vesw_info {
 
 /**
  * struct __opa_per_veswport_info - OPA vnic per port info
+ *
+ * Same as opa_per_veswport_info without bitwise attribute.
  */
 struct __opa_per_veswport_info {
 	u32  port_num;
@@ -133,12 +137,29 @@ struct __opa_per_veswport_info {
 
 /**
  * struct __opa_veswport_info - OPA vnic port info
+ *
+ * Same as opa_veswport_info without bitwise attribute.
  */
 struct __opa_veswport_info {
 	struct __opa_vesw_info            vesw;
 	struct __opa_per_veswport_info    vport;
 };
 
+/**
+ * struct __opa_veswport_trap - OPA vnic trap info
+ *
+ * Same as opa_veswport_trap without bitwise attribute.
+ */
+struct __opa_veswport_trap {
+	u16	fabric_id;
+	u16	veswid;
+	u32	veswportnum;
+	u16	opaportnum;
+	u8	veswportindex;
+	u8	opcode;
+	u32	reserved;
+} __packed;
+
 /**
  * struct opa_vnic_adapter - OPA VNIC netdev private data structure
  * @netdev: pointer to associated netdev
@@ -175,6 +196,18 @@ struct opa_vnic_adapter {
 #define v_warn(format, arg...) \
 	netdev_warn(adapter->netdev, format, ## arg)
 
+/* The maximum allowed entries in the mac table */
+#define OPA_VNIC_MAC_TBL_MAX_ENTRIES  2048
+/* Limit of smac entries in mac table */
+#define OPA_VNIC_MAX_SMAC_LIMIT       256
+
+/* The last octet of the MAC address is used as the key to the hash table */
+#define OPA_VNIC_MAC_HASH_IDX         5
+
+/* The VNIC MAC hash table is of size 2^8 */
+#define OPA_VNIC_MAC_TBL_HASH_BITS    8
+#define OPA_VNIC_MAC_TBL_SIZE  BIT(OPA_VNIC_MAC_TBL_HASH_BITS)
+
 struct opa_vnic_adapter *opa_vnic_add_netdev(struct ib_device *ibdev,
 					     u8 port_num, u8 vport_num);
 void opa_vnic_rem_netdev(struct opa_vnic_adapter *adapter);