dcbnl: add support for retrieving peer configuration - cee
This patch adds the support for retrieving the remote or peer DCBX
configuration via dcbnl for embedded DCBX stacks supporting the CEE DCBX
standard.
Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/dcbnl.h b/include/linux/dcbnl.h
index 2542685..a3680a1 100644
--- a/include/linux/dcbnl.h
+++ b/include/linux/dcbnl.h
@@ -87,6 +87,45 @@
__u64 indications[IEEE_8021QAZ_MAX_TCS];
};
+/* CEE DCBX std supported values */
+#define CEE_DCBX_MAX_PGS 8
+#define CEE_DCBX_MAX_PRIO 8
+
+/**
+ * struct cee_pg - CEE Prioity-Group managed object
+ *
+ * @willing: willing bit in the PG tlv
+ * @error: error bit in the PG tlv
+ * @pg_en: enable bit of the PG feature
+ * @tcs_supported: number of traffic classes supported
+ * @pg_bw: bandwidth percentage for each priority group
+ * @prio_pg: priority to PG mapping indexed by priority
+ */
+struct cee_pg {
+ __u8 willing;
+ __u8 error;
+ __u8 pg_en;
+ __u8 tcs_supported;
+ __u8 pg_bw[CEE_DCBX_MAX_PGS];
+ __u8 prio_pg[CEE_DCBX_MAX_PGS];
+};
+
+/**
+ * struct cee_pfc - CEE PFC managed object
+ *
+ * @willing: willing bit in the PFC tlv
+ * @error: error bit in the PFC tlv
+ * @pfc_en: bitmap indicating pfc enabled traffic classes
+ * @tcs_supported: number of traffic classes supported
+ */
+struct cee_pfc {
+ __u8 willing;
+ __u8 error;
+ __u8 pfc_en;
+ __u8 tcs_supported;
+};
+
+
/* This structure contains the IEEE 802.1Qaz APP managed object. This
* object is also used for the CEE std as well. There is no difference
* between the objects.
@@ -158,6 +197,7 @@
* @DCB_CMD_SDCBX: set DCBX engine configuration
* @DCB_CMD_GFEATCFG: get DCBX features flags
* @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
+ * @DCB_CMD_CEE_GET: get CEE aggregated configuration
*/
enum dcbnl_commands {
DCB_CMD_UNDEFINED,
@@ -200,6 +240,8 @@
DCB_CMD_GFEATCFG,
DCB_CMD_SFEATCFG,
+ DCB_CMD_CEE_GET,
+
__DCB_CMD_ENUM_MAX,
DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
};
@@ -222,6 +264,7 @@
* @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
* @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
* @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
+ * @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
*/
enum dcbnl_attrs {
DCB_ATTR_UNDEFINED,
@@ -245,6 +288,9 @@
DCB_ATTR_DCBX,
DCB_ATTR_FEATCFG,
+ /* CEE nested attributes */
+ DCB_ATTR_CEE,
+
__DCB_ATTR_ENUM_MAX,
DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
};
@@ -280,6 +326,31 @@
#define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
/**
+ * enum cee_attrs - CEE DCBX get attributes
+ *
+ * @DCB_ATTR_CEE_UNSPEC: unspecified
+ * @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
+ * @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
+ * @DCB_ATTR_CEE_PEER_APP: peer APP tlv - get only
+ */
+enum cee_attrs {
+ DCB_ATTR_CEE_UNSPEC,
+ DCB_ATTR_CEE_PEER_PG,
+ DCB_ATTR_CEE_PEER_PFC,
+ DCB_ATTR_CEE_PEER_APP_TABLE,
+ __DCB_ATTR_CEE_MAX
+};
+#define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
+
+enum peer_app_attr {
+ DCB_ATTR_CEE_PEER_APP_UNSPEC,
+ DCB_ATTR_CEE_PEER_APP_INFO,
+ DCB_ATTR_CEE_PEER_APP,
+ __DCB_ATTR_CEE_PEER_APP_MAX
+};
+#define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
+
+/**
* enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
*
* @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
diff --git a/include/net/dcbnl.h b/include/net/dcbnl.h
index 7b7180e..e5983c9 100644
--- a/include/net/dcbnl.h
+++ b/include/net/dcbnl.h
@@ -84,6 +84,9 @@
u16 *);
int (*peer_getapptable)(struct net_device *, struct dcb_app *);
+ /* CEE peer */
+ int (*cee_peer_getpg) (struct net_device *, struct cee_pg *);
+ int (*cee_peer_getpfc) (struct net_device *, struct cee_pfc *);
};
#endif /* __NET_DCBNL_H__ */