bnx2x: add DCB support

Adding DCB initialization and handling on 57712 FW/HW

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Shmulik Ravid-Rabinovitz <shmulikr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/bnx2x/Makefile

@@ -4,4 +4,4 @@
 
 obj-$(CONFIG_BNX2X) += bnx2x.o
 
-bnx2x-objs := bnx2x_main.o bnx2x_link.o bnx2x_cmn.o bnx2x_ethtool.o bnx2x_stats.o
+bnx2x-objs := bnx2x_main.o bnx2x_link.o bnx2x_cmn.o bnx2x_ethtool.o bnx2x_stats.o bnx2x_dcb.o

drivers/net/bnx2x/bnx2x.h

@@ -50,6 +50,7 @@
 #include "bnx2x_fw_defs.h"
 #include "bnx2x_hsi.h"
 #include "bnx2x_link.h"
+#include "bnx2x_dcb.h"
 #include "bnx2x_stats.h"
 
 /* error/debug prints */
@@ -820,6 +821,8 @@ struct bnx2x_slowpath {
 
 	u32				wb_comp;
 	u32				wb_data[4];
+	/* pfc configuration for DCBX ramrod */
+	struct flow_control_configuration pfc_config;
 };
 
 #define bnx2x_sp(bp, var)		(&bp->slowpath->var)
@@ -1180,6 +1183,18 @@ struct bnx2x {
 
 	char			fw_ver[32];
 	const struct firmware	*firmware;
+	/* LLDP params */
+	struct bnx2x_config_lldp_params		lldp_config_params;
+
+	/* DCBX params */
+	struct bnx2x_config_dcbx_params		dcbx_config_params;
+
+	struct bnx2x_dcbx_port_params		dcbx_port_params;
+	int					dcb_version;
+
+	/* DCBX Negotation results */
+	struct dcbx_features			dcbx_local_feat;
+	u32					dcbx_error;
 };
 
 /**

drivers/net/bnx2x/bnx2x_cmn.c

@@ -1371,6 +1371,8 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 		}
 	}
 
+	bnx2x_dcbx_init(bp);
+
 	bp->state = BNX2X_STATE_OPENING_WAIT4_PORT;
 
 	rc = bnx2x_func_start(bp);

drivers/net/bnx2x/bnx2x_cmn.h

@@ -323,6 +323,13 @@ int bnx2x_func_start(struct bnx2x *bp);
  */
 void bnx2x_ilt_set_info(struct bnx2x *bp);
 
+/**
+ * Inintialize dcbx protocol
+ *
+ * @param bp
+ */
+void bnx2x_dcbx_init(struct bnx2x *bp);
+
 /**
  * Set power state to the requested value. Currently only D0 and
  * D3hot are supported.