qed: Add support for query/config dcbx.

Query API reads the dcbx data from the device shared memory and return it
to the caller. The config API configures the user provided dcbx values on
the device, and initiates the dcbx negotiation with the peer.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 90 insertions, 0 deletions

diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index e8cc49f9688a..e1d5122e8a96 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -34,6 +34,96 @@ enum dcbx_protocol_type {
 	DCBX_MAX_PROTOCOL_TYPE
 };
 
+#ifdef CONFIG_DCB
+#define QED_LLDP_CHASSIS_ID_STAT_LEN 4
+#define QED_LLDP_PORT_ID_STAT_LEN 4
+#define QED_DCBX_MAX_APP_PROTOCOL 32
+#define QED_MAX_PFC_PRIORITIES 8
+#define QED_DCBX_DSCP_SIZE 64
+
+struct qed_dcbx_lldp_remote {
+	u32 peer_chassis_id[QED_LLDP_CHASSIS_ID_STAT_LEN];
+	u32 peer_port_id[QED_LLDP_PORT_ID_STAT_LEN];
+	bool enable_rx;
+	bool enable_tx;
+	u32 tx_interval;
+	u32 max_credit;
+};
+
+struct qed_dcbx_lldp_local {
+	u32 local_chassis_id[QED_LLDP_CHASSIS_ID_STAT_LEN];
+	u32 local_port_id[QED_LLDP_PORT_ID_STAT_LEN];
+};
+
+struct qed_dcbx_app_prio {
+	u8 roce;
+	u8 roce_v2;
+	u8 fcoe;
+	u8 iscsi;
+	u8 eth;
+};
+
+struct qed_dbcx_pfc_params {
+	bool willing;
+	bool enabled;
+	u8 prio[QED_MAX_PFC_PRIORITIES];
+	u8 max_tc;
+};
+
+struct qed_app_entry {
+	bool ethtype;
+	bool enabled;
+	u8 prio;
+	u16 proto_id;
+	enum dcbx_protocol_type proto_type;
+};
+
+struct qed_dcbx_params {
+	struct qed_app_entry app_entry[QED_DCBX_MAX_APP_PROTOCOL];
+	u16 num_app_entries;
+	bool app_willing;
+	bool app_valid;
+	bool app_error;
+	bool ets_willing;
+	bool ets_enabled;
+	bool ets_cbs;
+	bool valid;
+	u8 ets_pri_tc_tbl[QED_MAX_PFC_PRIORITIES];
+	u8 ets_tc_bw_tbl[QED_MAX_PFC_PRIORITIES];
+	u8 ets_tc_tsa_tbl[QED_MAX_PFC_PRIORITIES];
+	struct qed_dbcx_pfc_params pfc;
+	u8 max_ets_tc;
+};
+
+struct qed_dcbx_admin_params {
+	struct qed_dcbx_params params;
+	bool valid;
+};
+
+struct qed_dcbx_remote_params {
+	struct qed_dcbx_params params;
+	bool valid;
+};
+
+struct qed_dcbx_operational_params {
+	struct qed_dcbx_app_prio app_prio;
+	struct qed_dcbx_params params;
+	bool valid;
+	bool enabled;
+	bool ieee;
+	bool cee;
+	u32 err;
+};
+
+struct qed_dcbx_get {
+	struct qed_dcbx_operational_params operational;
+	struct qed_dcbx_lldp_remote lldp_remote;
+	struct qed_dcbx_lldp_local lldp_local;
+	struct qed_dcbx_remote_params remote;
+	struct qed_dcbx_admin_params local;
+};
+#endif
+
 enum qed_led_mode {
 	QED_LED_MODE_OFF,
 	QED_LED_MODE_ON,