1 files changed, 184 insertions, 0 deletions

diff --git a/include/linux/dcbnl.h b/include/linux/dcbnl.h
index 8723491f7dfd..68cd248f6d3e 100644
--- a/include/linux/dcbnl.h
+++ b/include/linux/dcbnl.h
@@ -22,6 +22,89 @@
 
 #include <linux/types.h>
 
+/* IEEE 802.1Qaz std supported values */
+#define IEEE_8021QAZ_MAX_TCS    8
+
+/* This structure contains the IEEE 802.1Qaz ETS managed object
+ *
+ * @willing: willing bit in ETS configuratin TLV
+ * @ets_cap: indicates supported capacity of ets feature
+ * @cbs: credit based shaper ets algorithm supported
+ * @tc_tx_bw: tc tx bandwidth indexed by traffic class
+ * @tc_rx_bw: tc rx bandwidth indexed by traffic class
+ * @tc_tsa: TSA Assignment table, indexed by traffic class
+ * @prio_tc: priority assignment table mapping 8021Qp to traffic class
+ * @tc_reco_bw: recommended tc bandwidth indexed by traffic class for TLV
+ * @tc_reco_tsa: recommended tc bandwidth indexed by traffic class for TLV
+ * @reco_prio_tc: recommended tc tx bandwidth indexed by traffic class for TLV
+ *
+ * Recommended values are used to set fields in the ETS recommendation TLV
+ * with hardware offloaded LLDP.
+ *
+ * ----
+ *  TSA Assignment 8 bit identifiers
+ *      0       strict priority
+ *      1       credit-based shaper
+ *      2       enhanced transmission selection
+ *      3-254   reserved
+ *      255     vendor specific
+ */
+struct ieee_ets {
+        __u8    willing;
+        __u8    ets_cap;
+        __u8    cbs;
+        __u8    tc_tx_bw[IEEE_8021QAZ_MAX_TCS];
+        __u8    tc_rx_bw[IEEE_8021QAZ_MAX_TCS];
+        __u8    tc_tsa[IEEE_8021QAZ_MAX_TCS];
+        __u8    prio_tc[IEEE_8021QAZ_MAX_TCS];
+        __u8    tc_reco_bw[IEEE_8021QAZ_MAX_TCS];
+        __u8    tc_reco_tsa[IEEE_8021QAZ_MAX_TCS];
+        __u8    reco_prio_tc[IEEE_8021QAZ_MAX_TCS];
+};
+
+/* This structure contains the IEEE 802.1Qaz PFC managed object
+ *
+ * @pfc_cap: Indicates the number of traffic classes on the local device
+ *           that may simultaneously have PFC enabled.
+ * @pfc_en: bitmap indicating pfc enabled traffic classes
+ * @mbc: enable macsec bypass capability
+ * @delay: the allowance made for a round-trip propagation delay of the
+ *         link in bits.
+ * @requests: count of the sent pfc frames
+ * @indications: count of the received pfc frames
+ */
+struct ieee_pfc {
+        __u8    pfc_cap;
+        __u8    pfc_en;
+        __u8    mbc;
+        __u16   delay;
+        __u64   requests[IEEE_8021QAZ_MAX_TCS];
+        __u64   indications[IEEE_8021QAZ_MAX_TCS];
+};
+
+/* 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.
+ *
+ * @selector: protocol identifier type
+ * @protocol: protocol of type indicated
+ * @priority: 3-bit unsigned integer indicating priority
+ *
+ * ----
+ *  Selector field values
+ *      0       Reserved
+ *      1       Ethertype
+ *      2       Well known port number over TCP or SCTP
+ *      3       Well known port number over UDP or DCCP
+ *      4       Well known port number over TCP, SCTP, UDP, or DCCP
+ *      5-7     Reserved
+ */
+struct dcb_app {
+        __u8    selector;
+        __u32   protocol;
+        __u8    priority;
+};
+
 struct dcbmsg {
         __u8               dcb_family;
         __u8               cmd;
@@ -50,6 +133,12 @@ struct dcbmsg {
  * @DCB_CMD_SBCN: get backward congestion notification configration.
  * @DCB_CMD_GAPP: get application protocol configuration
  * @DCB_CMD_SAPP: set application protocol configuration
+ * @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration
+ * @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration
+ * @DCB_CMD_GDCBX: get DCBX engine configuration
+ * @DCB_CMD_SDCBX: set DCBX engine configuration
+ * @DCB_CMD_GFEATCFG: get DCBX features flags
+ * @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
  */
 enum dcbnl_commands {
         DCB_CMD_UNDEFINED,
@@ -83,6 +172,15 @@ enum dcbnl_commands {
         DCB_CMD_GAPP,
         DCB_CMD_SAPP,
 
+        DCB_CMD_IEEE_SET,
+        DCB_CMD_IEEE_GET,
+
+        DCB_CMD_GDCBX,
+        DCB_CMD_SDCBX,
+
+        DCB_CMD_GFEATCFG,
+        DCB_CMD_SFEATCFG,
+
         __DCB_CMD_ENUM_MAX,
         DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
 };
@@ -102,6 +200,9 @@ enum dcbnl_commands {
  * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
  * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
  * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
+ * @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)
  */
 enum dcbnl_attrs {
         DCB_ATTR_UNDEFINED,
@@ -119,10 +220,32 @@ enum dcbnl_attrs {
         DCB_ATTR_BCN,
         DCB_ATTR_APP,
 
+        /* IEEE std attributes */
+        DCB_ATTR_IEEE,
+
+        DCB_ATTR_DCBX,
+        DCB_ATTR_FEATCFG,
+
         __DCB_ATTR_ENUM_MAX,
         DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
 };
 
+enum ieee_attrs {
+        DCB_ATTR_IEEE_UNSPEC,
+        DCB_ATTR_IEEE_ETS,
+        DCB_ATTR_IEEE_PFC,
+        DCB_ATTR_IEEE_APP_TABLE,
+        __DCB_ATTR_IEEE_MAX
+};
+#define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
+
+enum ieee_attrs_app {
+        DCB_ATTR_IEEE_APP_UNSPEC,
+        DCB_ATTR_IEEE_APP,
+        __DCB_ATTR_IEEE_APP_MAX
+};
+#define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
+
 /**
  * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
  *
@@ -262,6 +385,8 @@ enum dcbnl_tc_attrs {
  * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
  * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
  *                             Notification
+ * @DCB_CAP_ATTR_DCBX: (NLA_U8) device supports DCBX engine
+ *
  */
 enum dcbnl_cap_attrs {
         DCB_CAP_ATTR_UNDEFINED,
@@ -273,12 +398,45 @@ enum dcbnl_cap_attrs {
         DCB_CAP_ATTR_PFC_TCS,
         DCB_CAP_ATTR_GSP,
         DCB_CAP_ATTR_BCN,
+        DCB_CAP_ATTR_DCBX,
 
         __DCB_CAP_ATTR_ENUM_MAX,
         DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
 };
 
 /**
+ * DCBX capability flags
+ *
+ * @DCB_CAP_DCBX_HOST: DCBX negotiation is performed by the host LLDP agent.
+ *                     'set' routines are used to configure the device with
+ *                     the negotiated parameters
+ *
+ * @DCB_CAP_DCBX_LLD_MANAGED: DCBX negotiation is not performed in the host but
+ *                            by another entity
+ *                            'get' routines are used to retrieve the
+ *                            negotiated parameters
+ *                            'set' routines can be used to set the initial
+ *                            negotiation configuration
+ *
+ * @DCB_CAP_DCBX_VER_CEE: for a non-host DCBX engine, indicates the engine
+ *                        supports the CEE protocol flavor
+ *
+ * @DCB_CAP_DCBX_VER_IEEE: for a non-host DCBX engine, indicates the engine
+ *                         supports the IEEE protocol flavor
+ *
+ * @DCB_CAP_DCBX_STATIC: for a non-host DCBX engine, indicates the engine
+ *                       supports static configuration (i.e no actual
+ *                       negotiation is performed negotiated parameters equal
+ *                       the initial configuration)
+ *
+ */
+#define DCB_CAP_DCBX_HOST               0x01
+#define DCB_CAP_DCBX_LLD_MANAGED        0x02
+#define DCB_CAP_DCBX_VER_CEE            0x04
+#define DCB_CAP_DCBX_VER_IEEE           0x08
+#define DCB_CAP_DCBX_STATIC             0x10
+
+/**
  * enum dcbnl_numtcs_attrs - number of traffic classes
  *
  * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
@@ -355,4 +513,30 @@ enum dcbnl_app_attrs {
         DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
 };
 
+/**
+ * enum dcbnl_featcfg_attrs - features conifiguration flags
+ *
+ * @DCB_FEATCFG_ATTR_UNDEFINED: unspecified attribute to catch errors
+ * @DCB_FEATCFG_ATTR_ALL: (NLA_FLAG) all features configuration attributes
+ * @DCB_FEATCFG_ATTR_PG: (NLA_U8) configuration flags for priority groups
+ * @DCB_FEATCFG_ATTR_PFC: (NLA_U8) configuration flags for priority
+ *                                 flow control
+ * @DCB_FEATCFG_ATTR_APP: (NLA_U8) configuration flags for application TLV
+ *
+ */
+#define DCB_FEATCFG_ERROR       0x01    /* error in feature resolution */
+#define DCB_FEATCFG_ENABLE      0x02    /* enable feature */
+#define DCB_FEATCFG_WILLING     0x04    /* feature is willing */
+#define DCB_FEATCFG_ADVERTISE   0x08    /* advertise feature */
+enum dcbnl_featcfg_attrs {
+        DCB_FEATCFG_ATTR_UNDEFINED,
+        DCB_FEATCFG_ATTR_ALL,
+        DCB_FEATCFG_ATTR_PG,
+        DCB_FEATCFG_ATTR_PFC,
+        DCB_FEATCFG_ATTR_APP,
+
+        __DCB_FEATCFG_ATTR_ENUM_MAX,
+        DCB_FEATCFG_ATTR_MAX = __DCB_FEATCFG_ATTR_ENUM_MAX - 1,
+};
+
 #endif /* __LINUX_DCBNL_H__ */