[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>

8 files changed, 683 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index 21343c26721d..ec9872484711 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/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);
 }
 
 /*
diff --git a/drivers/scsi/bfa/bfa_defs_svc.h b/drivers/scsi/bfa/bfa_defs_svc.h
index 95a17ef631f0..4b6529c7a531 100644
--- a/drivers/scsi/bfa/bfa_defs_svc.h
+++ b/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__ */
diff --git a/drivers/scsi/bfa/bfa_modules.h b/drivers/scsi/bfa/bfa_modules.h
index e27fde8c6f2f..239aba711226 100644
--- a/drivers/scsi/bfa/bfa_modules.h
+++ b/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	*/
 };
 
 /*
diff --git a/drivers/scsi/bfa/bfa_port.c b/drivers/scsi/bfa/bfa_port.c
index 8bb6d75f9160..f382a475a09d 100644
--- a/drivers/scsi/bfa/bfa_port.c
+++ b/drivers/scsi/bfa/bfa_port.c
@@ -480,3 +480,368 @@ bfa_port_attach(struct bfa_port_s *port, struct bfa_ioc_s *ioc,
 
 	bfa_trc(port, 0);
 }
+
+/*
+ *	CEE module specific definitions
+ */
+
+/*
+ * bfa_cee_get_attr_isr()
+ *
+ * @brief CEE ISR for get-attributes responses from f/w
+ *
+ * @param[in] cee - Pointer to the CEE module
+ *		    status - Return status from the f/w
+ *
+ * @return void
+ */
+static void
+bfa_cee_get_attr_isr(struct bfa_cee_s *cee, bfa_status_t status)
+{
+	struct bfa_cee_lldp_cfg_s *lldp_cfg = &cee->attr->lldp_remote;
+
+	cee->get_attr_status = status;
+	bfa_trc(cee, 0);
+	if (status == BFA_STATUS_OK) {
+		bfa_trc(cee, 0);
+		memcpy(cee->attr, cee->attr_dma.kva,
+			sizeof(struct bfa_cee_attr_s));
+		lldp_cfg->time_to_live = be16_to_cpu(lldp_cfg->time_to_live);
+		lldp_cfg->enabled_system_cap =
+				be16_to_cpu(lldp_cfg->enabled_system_cap);
+	}
+	cee->get_attr_pending = BFA_FALSE;
+	if (cee->cbfn.get_attr_cbfn) {
+		bfa_trc(cee, 0);
+		cee->cbfn.get_attr_cbfn(cee->cbfn.get_attr_cbarg, status);
+	}
+}
+
+/*
+ * bfa_cee_get_stats_isr()
+ *
+ * @brief CEE ISR for get-stats responses from f/w
+ *
+ * @param[in] cee - Pointer to the CEE module
+ *	      status - Return status from the f/w
+ *
+ * @return void
+ */
+static void
+bfa_cee_get_stats_isr(struct bfa_cee_s *cee, bfa_status_t status)
+{
+	u32 *buffer;
+	int i;
+
+	cee->get_stats_status = status;
+	bfa_trc(cee, 0);
+	if (status == BFA_STATUS_OK) {
+		bfa_trc(cee, 0);
+		memcpy(cee->stats, cee->stats_dma.kva,
+			sizeof(struct bfa_cee_stats_s));
+		/* swap the cee stats */
+		buffer = (u32 *)cee->stats;
+		for (i = 0; i < (sizeof(struct bfa_cee_stats_s) /
+				 sizeof(u32)); i++)
+			buffer[i] = cpu_to_be32(buffer[i]);
+	}
+	cee->get_stats_pending = BFA_FALSE;
+	bfa_trc(cee, 0);
+	if (cee->cbfn.get_stats_cbfn) {
+		bfa_trc(cee, 0);
+		cee->cbfn.get_stats_cbfn(cee->cbfn.get_stats_cbarg, status);
+	}
+}
+
+/*
+ * bfa_cee_reset_stats_isr()
+ *
+ * @brief CEE ISR for reset-stats responses from f/w
+ *
+ * @param[in] cee - Pointer to the CEE module
+ *            status - Return status from the f/w
+ *
+ * @return void
+ */
+static void
+bfa_cee_reset_stats_isr(struct bfa_cee_s *cee, bfa_status_t status)
+{
+	cee->reset_stats_status = status;
+	cee->reset_stats_pending = BFA_FALSE;
+	if (cee->cbfn.reset_stats_cbfn)
+		cee->cbfn.reset_stats_cbfn(cee->cbfn.reset_stats_cbarg, status);
+}
+
+/*
+ * bfa_cee_meminfo()
+ *
+ * @brief Returns the size of the DMA memory needed by CEE module
+ *
+ * @param[in] void
+ *
+ * @return Size of DMA region
+ */
+u32
+bfa_cee_meminfo(void)
+{
+	return BFA_ROUNDUP(sizeof(struct bfa_cee_attr_s), BFA_DMA_ALIGN_SZ) +
+		BFA_ROUNDUP(sizeof(struct bfa_cee_stats_s), BFA_DMA_ALIGN_SZ);
+}
+
+/*
+ * bfa_cee_mem_claim()
+ *
+ * @brief Initialized CEE DMA Memory
+ *
+ * @param[in] cee CEE module pointer
+ *            dma_kva Kernel Virtual Address of CEE DMA Memory
+ *            dma_pa  Physical Address of CEE DMA Memory
+ *
+ * @return void
+ */
+void
+bfa_cee_mem_claim(struct bfa_cee_s *cee, u8 *dma_kva, u64 dma_pa)
+{
+	cee->attr_dma.kva = dma_kva;
+	cee->attr_dma.pa = dma_pa;
+	cee->stats_dma.kva = dma_kva + BFA_ROUNDUP(
+			     sizeof(struct bfa_cee_attr_s), BFA_DMA_ALIGN_SZ);
+	cee->stats_dma.pa = dma_pa + BFA_ROUNDUP(
+			     sizeof(struct bfa_cee_attr_s), BFA_DMA_ALIGN_SZ);
+	cee->attr = (struct bfa_cee_attr_s *) dma_kva;
+	cee->stats = (struct bfa_cee_stats_s *) (dma_kva + BFA_ROUNDUP(
+			sizeof(struct bfa_cee_attr_s), BFA_DMA_ALIGN_SZ));
+}
+
+/*
+ * bfa_cee_get_attr()
+ *
+ * @brief
+ *   Send the request to the f/w to fetch CEE attributes.
+ *
+ * @param[in] Pointer to the CEE module data structure.
+ *
+ * @return Status
+ */
+
+bfa_status_t
+bfa_cee_get_attr(struct bfa_cee_s *cee, struct bfa_cee_attr_s *attr,
+		 bfa_cee_get_attr_cbfn_t cbfn, void *cbarg)
+{
+	struct bfi_cee_get_req_s *cmd;
+
+	WARN_ON((cee == NULL) || (cee->ioc == NULL));
+	bfa_trc(cee, 0);
+	if (!bfa_ioc_is_operational(cee->ioc)) {
+		bfa_trc(cee, 0);
+		return BFA_STATUS_IOC_FAILURE;
+	}
+	if (cee->get_attr_pending == BFA_TRUE) {
+		bfa_trc(cee, 0);
+		return  BFA_STATUS_DEVBUSY;
+	}
+	cee->get_attr_pending = BFA_TRUE;
+	cmd = (struct bfi_cee_get_req_s *) cee->get_cfg_mb.msg;
+	cee->attr = attr;
+	cee->cbfn.get_attr_cbfn = cbfn;
+	cee->cbfn.get_attr_cbarg = cbarg;
+	bfi_h2i_set(cmd->mh, BFI_MC_CEE, BFI_CEE_H2I_GET_CFG_REQ,
+		bfa_ioc_portid(cee->ioc));
+	bfa_dma_be_addr_set(cmd->dma_addr, cee->attr_dma.pa);
+	bfa_ioc_mbox_queue(cee->ioc, &cee->get_cfg_mb);
+
+	return BFA_STATUS_OK;
+}
+
+/*
+ * bfa_cee_get_stats()
+ *
+ * @brief
+ *   Send the request to the f/w to fetch CEE statistics.
+ *
+ * @param[in] Pointer to the CEE module data structure.
+ *
+ * @return Status
+ */
+
+bfa_status_t
+bfa_cee_get_stats(struct bfa_cee_s *cee, struct bfa_cee_stats_s *stats,
+		  bfa_cee_get_stats_cbfn_t cbfn, void *cbarg)
+{
+	struct bfi_cee_get_req_s *cmd;
+
+	WARN_ON((cee == NULL) || (cee->ioc == NULL));
+
+	if (!bfa_ioc_is_operational(cee->ioc)) {
+		bfa_trc(cee, 0);
+		return BFA_STATUS_IOC_FAILURE;
+	}
+	if (cee->get_stats_pending == BFA_TRUE) {
+		bfa_trc(cee, 0);
+		return  BFA_STATUS_DEVBUSY;
+	}
+	cee->get_stats_pending = BFA_TRUE;
+	cmd = (struct bfi_cee_get_req_s *) cee->get_stats_mb.msg;
+	cee->stats = stats;
+	cee->cbfn.get_stats_cbfn = cbfn;
+	cee->cbfn.get_stats_cbarg = cbarg;
+	bfi_h2i_set(cmd->mh, BFI_MC_CEE, BFI_CEE_H2I_GET_STATS_REQ,
+		bfa_ioc_portid(cee->ioc));
+	bfa_dma_be_addr_set(cmd->dma_addr, cee->stats_dma.pa);
+	bfa_ioc_mbox_queue(cee->ioc, &cee->get_stats_mb);
+
+	return BFA_STATUS_OK;
+}
+
+/*
+ * bfa_cee_reset_stats()
+ *
+ * @brief Clears CEE Stats in the f/w.
+ *
+ * @param[in] Pointer to the CEE module data structure.
+ *
+ * @return Status
+ */
+
+bfa_status_t
+bfa_cee_reset_stats(struct bfa_cee_s *cee,
+		    bfa_cee_reset_stats_cbfn_t cbfn, void *cbarg)
+{
+	struct bfi_cee_reset_stats_s *cmd;
+
+	WARN_ON((cee == NULL) || (cee->ioc == NULL));
+	if (!bfa_ioc_is_operational(cee->ioc)) {
+		bfa_trc(cee, 0);
+		return BFA_STATUS_IOC_FAILURE;
+	}
+	if (cee->reset_stats_pending == BFA_TRUE) {
+		bfa_trc(cee, 0);
+		return  BFA_STATUS_DEVBUSY;
+	}
+	cee->reset_stats_pending = BFA_TRUE;
+	cmd = (struct bfi_cee_reset_stats_s *) cee->reset_stats_mb.msg;
+	cee->cbfn.reset_stats_cbfn = cbfn;
+	cee->cbfn.reset_stats_cbarg = cbarg;
+	bfi_h2i_set(cmd->mh, BFI_MC_CEE, BFI_CEE_H2I_RESET_STATS,
+		bfa_ioc_portid(cee->ioc));
+	bfa_ioc_mbox_queue(cee->ioc, &cee->reset_stats_mb);
+
+	return BFA_STATUS_OK;
+}
+
+/*
+ * bfa_cee_isrs()
+ *
+ * @brief Handles Mail-box interrupts for CEE module.
+ *
+ * @param[in] Pointer to the CEE module data structure.
+ *
+ * @return void
+ */
+
+void
+bfa_cee_isr(void *cbarg, struct bfi_mbmsg_s *m)
+{
+	union bfi_cee_i2h_msg_u *msg;
+	struct bfi_cee_get_rsp_s *get_rsp;
+	struct bfa_cee_s *cee = (struct bfa_cee_s *) cbarg;
+	msg = (union bfi_cee_i2h_msg_u *) m;
+	get_rsp = (struct bfi_cee_get_rsp_s *) m;
+	bfa_trc(cee, msg->mh.msg_id);
+	switch (msg->mh.msg_id) {
+	case BFI_CEE_I2H_GET_CFG_RSP:
+		bfa_trc(cee, get_rsp->cmd_status);
+		bfa_cee_get_attr_isr(cee, get_rsp->cmd_status);
+		break;
+	case BFI_CEE_I2H_GET_STATS_RSP:
+		bfa_cee_get_stats_isr(cee, get_rsp->cmd_status);
+		break;
+	case BFI_CEE_I2H_RESET_STATS_RSP:
+		bfa_cee_reset_stats_isr(cee, get_rsp->cmd_status);
+		break;
+	default:
+		WARN_ON(1);
+	}
+}
+
+/*
+ * bfa_cee_notify()
+ *
+ * @brief CEE module IOC event handler.
+ *
+ * @param[in] Pointer to the CEE module data structure.
+ * @param[in] IOC event type
+ *
+ * @return void
+ */
+
+void
+bfa_cee_notify(void *arg, enum bfa_ioc_event_e event)
+{
+	struct bfa_cee_s *cee = (struct bfa_cee_s *) arg;
+
+	bfa_trc(cee, event);
+
+	switch (event) {
+	case BFA_IOC_E_DISABLED:
+	case BFA_IOC_E_FAILED:
+		if (cee->get_attr_pending == BFA_TRUE) {
+			cee->get_attr_status = BFA_STATUS_FAILED;
+			cee->get_attr_pending  = BFA_FALSE;
+			if (cee->cbfn.get_attr_cbfn) {
+				cee->cbfn.get_attr_cbfn(
+					cee->cbfn.get_attr_cbarg,
+					BFA_STATUS_FAILED);
+			}
+		}
+		if (cee->get_stats_pending == BFA_TRUE) {
+			cee->get_stats_status = BFA_STATUS_FAILED;
+			cee->get_stats_pending  = BFA_FALSE;
+			if (cee->cbfn.get_stats_cbfn) {
+				cee->cbfn.get_stats_cbfn(
+				cee->cbfn.get_stats_cbarg,
+				BFA_STATUS_FAILED);
+			}
+		}
+		if (cee->reset_stats_pending == BFA_TRUE) {
+			cee->reset_stats_status = BFA_STATUS_FAILED;
+			cee->reset_stats_pending  = BFA_FALSE;
+			if (cee->cbfn.reset_stats_cbfn) {
+				cee->cbfn.reset_stats_cbfn(
+				cee->cbfn.reset_stats_cbarg,
+				BFA_STATUS_FAILED);
+			}
+		}
+		break;
+
+	default:
+		break;
+	}
+}
+
+/*
+ * bfa_cee_attach()
+ *
+ * @brief CEE module-attach API
+ *
+ * @param[in] cee - Pointer to the CEE module data structure
+ *            ioc - Pointer to the ioc module data structure
+ *            dev - Pointer to the device driver module data structure
+ *                  The device driver specific mbox ISR functions have
+ *                  this pointer as one of the parameters.
+ *
+ * @return void
+ */
+void
+bfa_cee_attach(struct bfa_cee_s *cee, struct bfa_ioc_s *ioc,
+		void *dev)
+{
+	WARN_ON(cee == NULL);
+	cee->dev = dev;
+	cee->ioc = ioc;
+
+	bfa_ioc_mbox_regisr(cee->ioc, BFI_MC_CEE, bfa_cee_isr, cee);
+	bfa_q_qe_init(&cee->ioc_notify);
+	bfa_ioc_notify_init(&cee->ioc_notify, bfa_cee_notify, cee);
+	list_add_tail(&cee->ioc_notify.qe, &cee->ioc->notify_q);
+}
diff --git a/drivers/scsi/bfa/bfa_port.h b/drivers/scsi/bfa/bfa_port.h
index b8bdc54aaeb4..947f897328d6 100644
--- a/drivers/scsi/bfa/bfa_port.h
+++ b/drivers/scsi/bfa/bfa_port.h
@@ -66,4 +66,58 @@ bfa_status_t bfa_port_disable(struct bfa_port_s *port,
 u32     bfa_port_meminfo(void);
 void	     bfa_port_mem_claim(struct bfa_port_s *port,
 				 u8 *dma_kva, u64 dma_pa);
+
+/*
+ * CEE declaration
+ */
+typedef void (*bfa_cee_get_attr_cbfn_t) (void *dev, bfa_status_t status);
+typedef void (*bfa_cee_get_stats_cbfn_t) (void *dev, bfa_status_t status);
+typedef void (*bfa_cee_reset_stats_cbfn_t) (void *dev, bfa_status_t status);
+
+struct bfa_cee_cbfn_s {
+	bfa_cee_get_attr_cbfn_t		get_attr_cbfn;
+	void				*get_attr_cbarg;
+	bfa_cee_get_stats_cbfn_t	get_stats_cbfn;
+	void				*get_stats_cbarg;
+	bfa_cee_reset_stats_cbfn_t	reset_stats_cbfn;
+	void				*reset_stats_cbarg;
+};
+
+struct bfa_cee_s {
+	void *dev;
+	bfa_boolean_t		get_attr_pending;
+	bfa_boolean_t		get_stats_pending;
+	bfa_boolean_t		reset_stats_pending;
+	bfa_status_t		get_attr_status;
+	bfa_status_t		get_stats_status;
+	bfa_status_t		reset_stats_status;
+	struct bfa_cee_cbfn_s	cbfn;
+	struct bfa_ioc_notify_s	ioc_notify;
+	struct bfa_trc_mod_s	*trcmod;
+	struct bfa_cee_attr_s	*attr;
+	struct bfa_cee_stats_s	*stats;
+	struct bfa_dma_s	attr_dma;
+	struct bfa_dma_s	stats_dma;
+	struct bfa_ioc_s	*ioc;
+	struct bfa_mbox_cmd_s	get_cfg_mb;
+	struct bfa_mbox_cmd_s	get_stats_mb;
+	struct bfa_mbox_cmd_s	reset_stats_mb;
+	struct bfa_mem_dma_s	cee_dma;
+};
+
+#define BFA_MEM_CEE_DMA(__bfa)	(&((__bfa)->modules.cee.cee_dma))
+
+u32	bfa_cee_meminfo(void);
+void	bfa_cee_mem_claim(struct bfa_cee_s *cee, u8 *dma_kva, u64 dma_pa);
+void	bfa_cee_attach(struct bfa_cee_s *cee,
+			struct bfa_ioc_s *ioc, void *dev);
+bfa_status_t	bfa_cee_get_attr(struct bfa_cee_s *cee,
+				struct bfa_cee_attr_s *attr,
+				bfa_cee_get_attr_cbfn_t cbfn, void *cbarg);
+bfa_status_t	bfa_cee_get_stats(struct bfa_cee_s *cee,
+				struct bfa_cee_stats_s *stats,
+				bfa_cee_get_stats_cbfn_t cbfn, void *cbarg);
+bfa_status_t	bfa_cee_reset_stats(struct bfa_cee_s *cee,
+				bfa_cee_reset_stats_cbfn_t cbfn, void *cbarg);
+
 #endif	/* __BFA_PORT_H__ */
diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c
index 5ae591b062b3..fcfe0ae7fd31 100644
--- a/drivers/scsi/bfa/bfad_bsg.c
+++ b/drivers/scsi/bfa/bfad_bsg.c
@@ -979,6 +979,93 @@ out:
 	return 0;
 }
 
+int
+bfad_iocmd_cee_attr(struct bfad_s *bfad, void *cmd, unsigned int payload_len)
+{
+	struct bfa_bsg_cee_attr_s *iocmd =
+				(struct bfa_bsg_cee_attr_s *)cmd;
+	void	*iocmd_bufptr;
+	struct bfad_hal_comp	cee_comp;
+	unsigned long	flags;
+
+	if (bfad_chk_iocmd_sz(payload_len,
+			sizeof(struct bfa_bsg_cee_attr_s),
+			sizeof(struct bfa_cee_attr_s)) != BFA_STATUS_OK) {
+		iocmd->status = BFA_STATUS_VERSION_FAIL;
+		return 0;
+	}
+
+	iocmd_bufptr = (char *)iocmd + sizeof(struct bfa_bsg_cee_attr_s);
+
+	cee_comp.status = 0;
+	init_completion(&cee_comp.comp);
+	mutex_lock(&bfad_mutex);
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	iocmd->status = bfa_cee_get_attr(&bfad->bfa.modules.cee, iocmd_bufptr,
+					 bfad_hcb_comp, &cee_comp);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+	if (iocmd->status != BFA_STATUS_OK) {
+		mutex_unlock(&bfad_mutex);
+		bfa_trc(bfad, 0x5555);
+		goto out;
+	}
+	wait_for_completion(&cee_comp.comp);
+	mutex_unlock(&bfad_mutex);
+out:
+	return 0;
+}
+
+int
+bfad_iocmd_cee_get_stats(struct bfad_s *bfad, void *cmd,
+			unsigned int payload_len)
+{
+	struct bfa_bsg_cee_stats_s *iocmd =
+				(struct bfa_bsg_cee_stats_s *)cmd;
+	void	*iocmd_bufptr;
+	struct bfad_hal_comp	cee_comp;
+	unsigned long	flags;
+
+	if (bfad_chk_iocmd_sz(payload_len,
+			sizeof(struct bfa_bsg_cee_stats_s),
+			sizeof(struct bfa_cee_stats_s)) != BFA_STATUS_OK) {
+		iocmd->status = BFA_STATUS_VERSION_FAIL;
+		return 0;
+	}
+
+	iocmd_bufptr = (char *)iocmd + sizeof(struct bfa_bsg_cee_stats_s);
+
+	cee_comp.status = 0;
+	init_completion(&cee_comp.comp);
+	mutex_lock(&bfad_mutex);
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	iocmd->status = bfa_cee_get_stats(&bfad->bfa.modules.cee, iocmd_bufptr,
+					bfad_hcb_comp, &cee_comp);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+	if (iocmd->status != BFA_STATUS_OK) {
+		mutex_unlock(&bfad_mutex);
+		bfa_trc(bfad, 0x5555);
+		goto out;
+	}
+	wait_for_completion(&cee_comp.comp);
+	mutex_unlock(&bfad_mutex);
+out:
+	return 0;
+}
+
+int
+bfad_iocmd_cee_reset_stats(struct bfad_s *bfad, void *cmd)
+{
+	struct bfa_bsg_gen_s *iocmd = (struct bfa_bsg_gen_s *)cmd;
+	unsigned long	flags;
+
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	iocmd->status = bfa_cee_reset_stats(&bfad->bfa.modules.cee, NULL, NULL);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+	if (iocmd->status != BFA_STATUS_OK)
+		bfa_trc(bfad, 0x5555);
+	return 0;
+}
+
 static int
 bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd,
 		unsigned int payload_len)
@@ -1098,6 +1185,15 @@ bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd,
 	case IOCMD_FAA_QUERY:
 		rc = bfad_iocmd_faa_query(bfad, iocmd);
 		break;
+	case IOCMD_CEE_GET_ATTR:
+		rc = bfad_iocmd_cee_attr(bfad, iocmd, payload_len);
+		break;
+	case IOCMD_CEE_GET_STATS:
+		rc = bfad_iocmd_cee_get_stats(bfad, iocmd, payload_len);
+		break;
+	case IOCMD_CEE_RESET_STATS:
+		rc = bfad_iocmd_cee_reset_stats(bfad, iocmd);
+		break;
 	default:
 		rc = EINVAL;
 		break;
diff --git a/drivers/scsi/bfa/bfad_bsg.h b/drivers/scsi/bfa/bfad_bsg.h
index 0abb2d2036a3..5b4599ad8fb9 100644
--- a/drivers/scsi/bfa/bfad_bsg.h
+++ b/drivers/scsi/bfa/bfad_bsg.h
@@ -62,6 +62,9 @@ enum {
 	IOCMD_FAA_ENABLE,
 	IOCMD_FAA_DISABLE,
 	IOCMD_FAA_QUERY,
+	IOCMD_CEE_GET_ATTR,
+	IOCMD_CEE_GET_STATS,
+	IOCMD_CEE_RESET_STATS,
 };
 
 struct bfa_bsg_gen_s {
@@ -299,6 +302,24 @@ struct bfa_bsg_faa_attr_s {
 	struct bfa_faa_attr_s	faa_attr;
 };
 
+struct bfa_bsg_cee_attr_s {
+	bfa_status_t	status;
+	u16		bfad_num;
+	u16		rsvd;
+	u32		buf_size;
+	u32		rsvd1;
+	u64		buf_ptr;
+};
+
+struct bfa_bsg_cee_stats_s {
+	bfa_status_t	status;
+	u16		bfad_num;
+	u16		rsvd;
+	u32		buf_size;
+	u32		rsvd1;
+	u64		buf_ptr;
+};
+
 struct bfa_bsg_fcpt_s {
 	bfa_status_t    status;
 	u16		vf_id;
diff --git a/drivers/scsi/bfa/bfi.h b/drivers/scsi/bfa/bfi.h
index d36c81b88f69..037b377668c2 100644
--- a/drivers/scsi/bfa/bfi.h
+++ b/drivers/scsi/bfa/bfi.h
@@ -190,6 +190,7 @@ enum bfi_pcifn_class {
  */
 enum bfi_mclass {
 	BFI_MC_IOC		= 1,	/*  IO Controller (IOC)	    */
+	BFI_MC_CEE		= 4,	/*  CEE	*/
 	BFI_MC_FCPORT		= 5,	/*  FC port			    */
 	BFI_MC_IOCFC		= 6,	/*  FC - IO Controller (IOC)	    */
 	BFI_MC_ABLK		= 7,	/*  ASIC block configuration	    */
@@ -706,6 +707,64 @@ struct bfi_ablk_i2h_rsp_s {
 	u8			port_mode;
 };
 
+
+/*
+ *	CEE module specific messages
+ */
+
+/* Mailbox commands from host to firmware */
+enum bfi_cee_h2i_msgs_e {
+	BFI_CEE_H2I_GET_CFG_REQ = 1,
+	BFI_CEE_H2I_RESET_STATS = 2,
+	BFI_CEE_H2I_GET_STATS_REQ = 3,
+};
+
+enum bfi_cee_i2h_msgs_e {
+	BFI_CEE_I2H_GET_CFG_RSP = BFA_I2HM(1),
+	BFI_CEE_I2H_RESET_STATS_RSP = BFA_I2HM(2),
+	BFI_CEE_I2H_GET_STATS_RSP = BFA_I2HM(3),
+};
+
+/*
+ * H2I command structure for resetting the stats
+ */
+struct bfi_cee_reset_stats_s {
+	struct bfi_mhdr_s  mh;
+};
+
+/*
+ * Get configuration  command from host
+ */
+struct bfi_cee_get_req_s {
+	struct bfi_mhdr_s	mh;
+	union bfi_addr_u	dma_addr;
+};
+
+/*
+ * Reply message from firmware
+ */
+struct bfi_cee_get_rsp_s {
+	struct bfi_mhdr_s	mh;
+	u8			cmd_status;
+	u8			rsvd[3];
+};
+
+/*
+ * Reply message from firmware
+ */
+struct bfi_cee_stats_rsp_s {
+	struct bfi_mhdr_s	mh;
+	u8			cmd_status;
+	u8			rsvd[3];
+};
+
+/* Mailbox message structures from firmware to host	*/
+union bfi_cee_i2h_msg_u {
+	struct bfi_mhdr_s		mh;
+	struct bfi_cee_get_rsp_s	get_rsp;
+	struct bfi_cee_stats_rsp_s	stats_rsp;
+};
+
 #pragma pack()
 
 #endif /* __BFI_H__ */