[SCSI] bfa: Added support for CEE info and stats query.

- Added CEE sub-module.
- Added support to collect stats/cee module info
  using BSG interface.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/bfa/bfa_core.c

@@ -111,6 +111,17 @@ bfa_com_ablk_attach(struct bfa_s *bfa)
 	bfa_ablk_memclaim(ablk, ablk_dma->kva_curp, ablk_dma->dma_curp);
 }
 
+static void
+bfa_com_cee_attach(struct bfa_s *bfa)
+{
+	struct bfa_cee_s	*cee = &bfa->modules.cee;
+	struct bfa_mem_dma_s	*cee_dma = BFA_MEM_CEE_DMA(bfa);
+
+	cee->trcmod = bfa->trcmod;
+	bfa_cee_attach(cee, &bfa->ioc, bfa);
+	bfa_cee_mem_claim(cee, cee_dma->kva_curp, cee_dma->dma_curp);
+}
+
 /*
  * BFA IOC FC related definitions
  */
@@ -1348,6 +1359,7 @@ bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
 	int		i;
 	struct bfa_mem_dma_s *port_dma = BFA_MEM_PORT_DMA(bfa);
 	struct bfa_mem_dma_s *ablk_dma = BFA_MEM_ABLK_DMA(bfa);
+	struct bfa_mem_dma_s *cee_dma = BFA_MEM_CEE_DMA(bfa);
 
 	WARN_ON((cfg == NULL) || (meminfo == NULL));
 
@@ -1365,6 +1377,7 @@ bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
 	/* dma info setup */
 	bfa_mem_dma_setup(meminfo, port_dma, bfa_port_meminfo());
 	bfa_mem_dma_setup(meminfo, ablk_dma, bfa_ablk_meminfo());
+	bfa_mem_dma_setup(meminfo, cee_dma, bfa_cee_meminfo());
 }
 
 /*
@@ -1432,6 +1445,7 @@ bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
 
 	bfa_com_port_attach(bfa);
 	bfa_com_ablk_attach(bfa);
+	bfa_com_cee_attach(bfa);
 }
 
 /*

drivers/scsi/bfa/bfa_defs_svc.h

@@ -1142,4 +1142,77 @@ struct bfa_port_cfg_mode_s {
 	enum bfa_mode_s	mode;
 };
 
+#pragma pack(1)
+
+#define BFA_CEE_LLDP_MAX_STRING_LEN	(128)
+#define BFA_CEE_DCBX_MAX_PRIORITY	(8)
+#define BFA_CEE_DCBX_MAX_PGID		(8)
+
+struct bfa_cee_lldp_str_s {
+	u8	sub_type;
+	u8	len;
+	u8	rsvd[2];
+	u8	value[BFA_CEE_LLDP_MAX_STRING_LEN];
+};
+
+struct bfa_cee_lldp_cfg_s {
+	struct bfa_cee_lldp_str_s chassis_id;
+	struct bfa_cee_lldp_str_s port_id;
+	struct bfa_cee_lldp_str_s port_desc;
+	struct bfa_cee_lldp_str_s sys_name;
+	struct bfa_cee_lldp_str_s sys_desc;
+	struct bfa_cee_lldp_str_s mgmt_addr;
+	u16	time_to_live;
+	u16	enabled_system_cap;
+};
+
+/* CEE/DCBX parameters */
+struct bfa_cee_dcbx_cfg_s {
+	u8	pgid[BFA_CEE_DCBX_MAX_PRIORITY];
+	u8	pg_percentage[BFA_CEE_DCBX_MAX_PGID];
+	u8	pfc_primap; /* bitmap of priorties with PFC enabled */
+	u8	fcoe_primap; /* bitmap of priorities used for FcoE traffic */
+	u8	iscsi_primap; /* bitmap of priorities used for iSCSI traffic */
+	u8	dcbx_version; /* operating version:CEE or preCEE */
+	u8	lls_fcoe; /* FCoE Logical Link Status */
+	u8	lls_lan; /* LAN Logical Link Status */
+	u8	rsvd[2];
+};
+
+/* CEE Query */
+struct bfa_cee_attr_s {
+	u8	cee_status;
+	u8	error_reason;
+	struct bfa_cee_lldp_cfg_s lldp_remote;
+	struct bfa_cee_dcbx_cfg_s dcbx_remote;
+	mac_t src_mac;
+	u8	link_speed;
+	u8	nw_priority;
+	u8	filler[2];
+};
+
+/* LLDP/DCBX/CEE Statistics */
+struct bfa_cee_stats_s {
+	u32		lldp_tx_frames;		/* LLDP Tx Frames */
+	u32		lldp_rx_frames;		/* LLDP Rx Frames */
+	u32		lldp_rx_frames_invalid; /* LLDP Rx Frames invalid */
+	u32		lldp_rx_frames_new;     /* LLDP Rx Frames new */
+	u32		lldp_tlvs_unrecognized; /* LLDP Rx unrecog. TLVs */
+	u32		lldp_rx_shutdown_tlvs;  /* LLDP Rx shutdown TLVs */
+	u32		lldp_info_aged_out;     /* LLDP remote info aged */
+	u32		dcbx_phylink_ups;       /* DCBX phy link ups */
+	u32		dcbx_phylink_downs;     /* DCBX phy link downs */
+	u32		dcbx_rx_tlvs;           /* DCBX Rx TLVs */
+	u32		dcbx_rx_tlvs_invalid;   /* DCBX Rx TLVs invalid */
+	u32		dcbx_control_tlv_error; /* DCBX control TLV errors */
+	u32		dcbx_feature_tlv_error; /* DCBX feature TLV errors */
+	u32		dcbx_cee_cfg_new;       /* DCBX new CEE cfg rcvd */
+	u32		cee_status_down;        /* DCB status down */
+	u32		cee_status_up;          /* DCB status up */
+	u32		cee_hw_cfg_changed;     /* DCB hw cfg changed */
+	u32		cee_rx_invalid_cfg;     /* DCB invalid cfg */
+};
+
+#pragma pack()
+
 #endif /* __BFA_DEFS_SVC_H__ */

drivers/scsi/bfa/bfa_modules.h

@@ -38,6 +38,7 @@ struct bfa_modules_s {
 	struct bfa_sgpg_mod_s	sgpg_mod;	/*  SG page module	      */
 	struct bfa_port_s	port;		/*  Physical port module     */
 	struct bfa_ablk_s	ablk;		/*  ASIC block config module */
+	struct bfa_cee_s	cee;		/*  CEE Module	*/
 };
 
 /*