[SCSI] bfa: Added HBA diagnostics support.

- Added diagnostics sub-module to BFA.
- Implemented interface to perform memtest/loopback test
  and some other diagnostics tests.

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

11 files changed, 1665 insertions, 9 deletions

diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index 04d36208536..e688ff72166 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -25,6 +25,7 @@ BFA_TRC_FILE(HAL, CORE);
  * BFA module list terminated by NULL
  */
 static struct bfa_module_s *hal_mods[] = {
+	&hal_mod_fcdiag,
 	&hal_mod_sgpg,
 	&hal_mod_fcport,
 	&hal_mod_fcxp,
@@ -41,7 +42,7 @@ static struct bfa_module_s *hal_mods[] = {
 static bfa_isr_func_t  bfa_isrs[BFI_MC_MAX] = {
 	bfa_isr_unhandled,	/* NONE */
 	bfa_isr_unhandled,	/* BFI_MC_IOC */
-	bfa_isr_unhandled,	/* BFI_MC_DIAG */
+	bfa_fcdiag_intr,	/* BFI_MC_DIAG */
 	bfa_isr_unhandled,	/* BFI_MC_FLASH */
 	bfa_isr_unhandled,	/* BFI_MC_CEE */
 	bfa_fcport_isr,		/* BFI_MC_FCPORT */
@@ -143,6 +144,16 @@ bfa_com_flash_attach(struct bfa_s *bfa, bfa_boolean_t mincfg)
 			   flash_dma->dma_curp, mincfg);
 }
 
+static void
+bfa_com_diag_attach(struct bfa_s *bfa)
+{
+	struct bfa_diag_s	*diag = BFA_DIAG_MOD(bfa);
+	struct bfa_mem_dma_s	*diag_dma = BFA_MEM_DIAG_DMA(bfa);
+
+	bfa_diag_attach(diag, &bfa->ioc, bfa, bfa_fcport_beacon, bfa->trcmod);
+	bfa_diag_memclaim(diag, diag_dma->kva_curp, diag_dma->dma_curp);
+}
+
 /*
  * BFA IOC FC related definitions
  */
@@ -1383,6 +1394,7 @@ bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
 	struct bfa_mem_dma_s *cee_dma = BFA_MEM_CEE_DMA(bfa);
 	struct bfa_mem_dma_s *sfp_dma = BFA_MEM_SFP_DMA(bfa);
 	struct bfa_mem_dma_s *flash_dma = BFA_MEM_FLASH_DMA(bfa);
+	struct bfa_mem_dma_s *diag_dma = BFA_MEM_DIAG_DMA(bfa);
 
 	WARN_ON((cfg == NULL) || (meminfo == NULL));
 
@@ -1404,6 +1416,7 @@ bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
 	bfa_mem_dma_setup(meminfo, sfp_dma, bfa_sfp_meminfo());
 	bfa_mem_dma_setup(meminfo, flash_dma,
 			  bfa_flash_meminfo(cfg->drvcfg.min_cfg));
+	bfa_mem_dma_setup(meminfo, diag_dma, bfa_diag_meminfo());
 }
 
 /*
@@ -1474,6 +1487,7 @@ bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
 	bfa_com_cee_attach(bfa);
 	bfa_com_sfp_attach(bfa);
 	bfa_com_flash_attach(bfa, cfg->drvcfg.min_cfg);
+	bfa_com_diag_attach(bfa);
 }
 
 /*
diff --git a/drivers/scsi/bfa/bfa_defs.h b/drivers/scsi/bfa/bfa_defs.h
index 97ad07c4aee..ddf13d74e4b 100644
--- a/drivers/scsi/bfa/bfa_defs.h
+++ b/drivers/scsi/bfa/bfa_defs.h
@@ -132,7 +132,9 @@ enum bfa_status {
 	BFA_STATUS_EPROTOCOL	= 6,	/*  Protocol error */
 	BFA_STATUS_SFP_UNSUPP	= 10,	/*  Unsupported SFP - Replace SFP */
 	BFA_STATUS_UNKNOWN_VFID = 11,	/*  VF_ID not found */
+	BFA_STATUS_DATACORRUPTED = 12,  /*  Diag returned data corrupted */
 	BFA_STATUS_DEVBUSY	= 13,	/*  Device busy - Retry operation */
+	BFA_STATUS_HDMA_FAILED  = 16,   /* Host dma failed contact support */
 	BFA_STATUS_FLASH_BAD_LEN = 17,	/*  Flash bad length */
 	BFA_STATUS_UNKNOWN_LWWN = 18,	/*  LPORT PWWN not found */
 	BFA_STATUS_UNKNOWN_RWWN = 19,	/*  RPORT PWWN not found */
@@ -140,19 +142,25 @@ enum bfa_status {
 	BFA_STATUS_VPORT_MAX	= 22,	/*  Reached max VPORT supported limit */
 	BFA_STATUS_UNSUPP_SPEED	= 23,	/*  Invalid Speed Check speed setting */
 	BFA_STATUS_INVLD_DFSZ	= 24,	/*  Invalid Max data field size */
+	BFA_STATUS_CMD_NOTSUPP  = 26,   /*  Command/API not supported */
 	BFA_STATUS_FABRIC_RJT	= 29,	/*  Reject from attached fabric */
 	BFA_STATUS_PORT_OFFLINE = 34,	/*  Port is not online */
 	BFA_STATUS_VPORT_WWN_BP	= 46,	/*  WWN is same as base port's WWN */
+	BFA_STATUS_PORT_NOT_DISABLED = 47, /* Port not disabled disable port */
 	BFA_STATUS_NO_FCPIM_NEXUS = 52,	/* No FCP Nexus exists with the rport */
 	BFA_STATUS_IOC_FAILURE	= 56,	/* IOC failure - Retry, if persists
 					 * contact support */
 	BFA_STATUS_INVALID_WWN	= 57,	/*  Invalid WWN */
+	BFA_STATUS_ADAPTER_ENABLED = 60, /* Adapter is not disabled */
 	BFA_STATUS_IOC_NON_OP   = 61,	/* IOC is not operational */
 	BFA_STATUS_VERSION_FAIL = 70, /* Application/Driver version mismatch */
 	BFA_STATUS_DIAG_BUSY	= 71,	/*  diag busy */
+	BFA_STATUS_BEACON_ON    = 72,   /* Port Beacon already on */
 	BFA_STATUS_ENOFSAVE	= 78,	/*  No saved firmware trace */
 	BFA_STATUS_IOC_DISABLED = 82,   /* IOC is already disabled */
 	BFA_STATUS_NO_SFP_DEV = 89,	/* No SFP device check or replace SFP */
+	BFA_STATUS_MEMTEST_FAILED = 90, /* Memory test failed contact support */
+	BFA_STATUS_LEDTEST_OP = 109, /* LED test is operating */
 	BFA_STATUS_INVALID_MAC  = 134, /*  Invalid MAC address */
 	BFA_STATUS_PBC		= 154, /*  Operation not allowed for pre-boot
 					*  configuration */
@@ -881,6 +889,56 @@ struct bfa_flash_attr_s {
 	struct bfa_flash_part_attr_s part[BFA_FLASH_PART_MAX];
 };
 
+/*
+ *	DIAG module specific
+ */
+#define LB_PATTERN_DEFAULT	0xB5B5B5B5
+#define QTEST_CNT_DEFAULT	10
+#define QTEST_PAT_DEFAULT	LB_PATTERN_DEFAULT
+
+struct bfa_diag_memtest_s {
+	u8	algo;
+	u8	rsvd[7];
+};
+
+struct bfa_diag_memtest_result {
+	u32	status;
+	u32	addr;
+	u32	exp; /* expect value read from reg */
+	u32	act; /* actually value read */
+	u32	err_status;             /* error status reg */
+	u32	err_status1;    /* extra error info reg */
+	u32	err_addr; /* error address reg */
+	u8	algo;
+	u8	rsv[3];
+};
+
+struct bfa_diag_loopback_result_s {
+	u32	numtxmfrm;      /* no. of transmit frame */
+	u32	numosffrm;      /* no. of outstanding frame */
+	u32	numrcvfrm;      /* no. of received good frame */
+	u32	badfrminf;      /* mis-match info */
+	u32	badfrmnum;      /* mis-match fram number */
+	u8	status;         /* loopback test result */
+	u8	rsvd[3];
+};
+
+struct bfa_diag_ledtest_s {
+	u32	cmd;    /* bfa_led_op_t */
+	u32	color;  /* bfa_led_color_t */
+	u16	freq;   /* no. of blinks every 10 secs */
+	u8	led;    /* bitmap of LEDs to be tested */
+	u8	rsvd[5];
+};
+
+struct bfa_diag_loopback_s {
+	u32	loopcnt;
+	u32	pattern;
+	u8	lb_mode;    /* bfa_port_opmode_t */
+	u8	speed;      /* bfa_port_speed_t */
+	u8	rsvd[2];
+};
+
 #pragma pack()
 
 #endif /* __BFA_DEFS_H__ */
diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index 15060732413..31467780b61 100644
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -4315,3 +4315,583 @@ bfa_flash_read_part(struct bfa_flash_s *flash, enum bfa_flash_part_type type,
 
 	return BFA_STATUS_OK;
 }
+
+/*
+ *	DIAG module specific
+ */
+
+#define BFA_DIAG_MEMTEST_TOV	50000	/* memtest timeout in msec */
+#define BFA_DIAG_FWPING_TOV	1000	/* msec */
+
+/* IOC event handler */
+static void
+bfa_diag_notify(void *diag_arg, enum bfa_ioc_event_e event)
+{
+	struct bfa_diag_s *diag = diag_arg;
+
+	bfa_trc(diag, event);
+	bfa_trc(diag, diag->block);
+	bfa_trc(diag, diag->fwping.lock);
+	bfa_trc(diag, diag->tsensor.lock);
+
+	switch (event) {
+	case BFA_IOC_E_DISABLED:
+	case BFA_IOC_E_FAILED:
+		if (diag->fwping.lock) {
+			diag->fwping.status = BFA_STATUS_IOC_FAILURE;
+			diag->fwping.cbfn(diag->fwping.cbarg,
+					diag->fwping.status);
+			diag->fwping.lock = 0;
+		}
+
+		if (diag->tsensor.lock) {
+			diag->tsensor.status = BFA_STATUS_IOC_FAILURE;
+			diag->tsensor.cbfn(diag->tsensor.cbarg,
+					   diag->tsensor.status);
+			diag->tsensor.lock = 0;
+		}
+
+		if (diag->block) {
+			if (diag->timer_active) {
+				bfa_timer_stop(&diag->timer);
+				diag->timer_active = 0;
+			}
+
+			diag->status = BFA_STATUS_IOC_FAILURE;
+			diag->cbfn(diag->cbarg, diag->status);
+			diag->block = 0;
+		}
+		break;
+
+	default:
+		break;
+	}
+}
+
+static void
+bfa_diag_memtest_done(void *cbarg)
+{
+	struct bfa_diag_s *diag = cbarg;
+	struct bfa_ioc_s  *ioc = diag->ioc;
+	struct bfa_diag_memtest_result *res = diag->result;
+	u32	loff = BFI_BOOT_MEMTEST_RES_ADDR;
+	u32	pgnum, pgoff, i;
+
+	pgnum = PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, loff);
+	pgoff = PSS_SMEM_PGOFF(loff);
+
+	writel(pgnum, ioc->ioc_regs.host_page_num_fn);
+
+	for (i = 0; i < (sizeof(struct bfa_diag_memtest_result) /
+			 sizeof(u32)); i++) {
+		/* read test result from smem */
+		*((u32 *) res + i) =
+			bfa_mem_read(ioc->ioc_regs.smem_page_start, loff);
+		loff += sizeof(u32);
+	}
+
+	/* Reset IOC fwstates to BFI_IOC_UNINIT */
+	bfa_ioc_reset_fwstate(ioc);
+
+	res->status = swab32(res->status);
+	bfa_trc(diag, res->status);
+
+	if (res->status == BFI_BOOT_MEMTEST_RES_SIG)
+		diag->status = BFA_STATUS_OK;
+	else {
+		diag->status = BFA_STATUS_MEMTEST_FAILED;
+		res->addr = swab32(res->addr);
+		res->exp = swab32(res->exp);
+		res->act = swab32(res->act);
+		res->err_status = swab32(res->err_status);
+		res->err_status1 = swab32(res->err_status1);
+		res->err_addr = swab32(res->err_addr);
+		bfa_trc(diag, res->addr);
+		bfa_trc(diag, res->exp);
+		bfa_trc(diag, res->act);
+		bfa_trc(diag, res->err_status);
+		bfa_trc(diag, res->err_status1);
+		bfa_trc(diag, res->err_addr);
+	}
+	diag->timer_active = 0;
+	diag->cbfn(diag->cbarg, diag->status);
+	diag->block = 0;
+}
+
+/*
+ * Firmware ping
+ */
+
+/*
+ * Perform DMA test directly
+ */
+static void
+diag_fwping_send(struct bfa_diag_s *diag)
+{
+	struct bfi_diag_fwping_req_s *fwping_req;
+	u32	i;
+
+	bfa_trc(diag, diag->fwping.dbuf_pa);
+
+	/* fill DMA area with pattern */
+	for (i = 0; i < (BFI_DIAG_DMA_BUF_SZ >> 2); i++)
+		*((u32 *)diag->fwping.dbuf_kva + i) = diag->fwping.data;
+
+	/* Fill mbox msg */
+	fwping_req = (struct bfi_diag_fwping_req_s *)diag->fwping.mbcmd.msg;
+
+	/* Setup SG list */
+	bfa_alen_set(&fwping_req->alen, BFI_DIAG_DMA_BUF_SZ,
+			diag->fwping.dbuf_pa);
+	/* Set up dma count */
+	fwping_req->count = cpu_to_be32(diag->fwping.count);
+	/* Set up data pattern */
+	fwping_req->data = diag->fwping.data;
+
+	/* build host command */
+	bfi_h2i_set(fwping_req->mh, BFI_MC_DIAG, BFI_DIAG_H2I_FWPING,
+		bfa_ioc_portid(diag->ioc));
+
+	/* send mbox cmd */
+	bfa_ioc_mbox_queue(diag->ioc, &diag->fwping.mbcmd);
+}
+
+static void
+diag_fwping_comp(struct bfa_diag_s *diag,
+		 struct bfi_diag_fwping_rsp_s *diag_rsp)
+{
+	u32	rsp_data = diag_rsp->data;
+	u8	rsp_dma_status = diag_rsp->dma_status;
+
+	bfa_trc(diag, rsp_data);
+	bfa_trc(diag, rsp_dma_status);
+
+	if (rsp_dma_status == BFA_STATUS_OK) {
+		u32	i, pat;
+		pat = (diag->fwping.count & 0x1) ? ~(diag->fwping.data) :
+			diag->fwping.data;
+		/* Check mbox data */
+		if (diag->fwping.data != rsp_data) {
+			bfa_trc(diag, rsp_data);
+			diag->fwping.result->dmastatus =
+					BFA_STATUS_DATACORRUPTED;
+			diag->fwping.status = BFA_STATUS_DATACORRUPTED;
+			diag->fwping.cbfn(diag->fwping.cbarg,
+					diag->fwping.status);
+			diag->fwping.lock = 0;
+			return;
+		}
+		/* Check dma pattern */
+		for (i = 0; i < (BFI_DIAG_DMA_BUF_SZ >> 2); i++) {
+			if (*((u32 *)diag->fwping.dbuf_kva + i) != pat) {
+				bfa_trc(diag, i);
+				bfa_trc(diag, pat);
+				bfa_trc(diag,
+					*((u32 *)diag->fwping.dbuf_kva + i));
+				diag->fwping.result->dmastatus =
+						BFA_STATUS_DATACORRUPTED;
+				diag->fwping.status = BFA_STATUS_DATACORRUPTED;
+				diag->fwping.cbfn(diag->fwping.cbarg,
+						diag->fwping.status);
+				diag->fwping.lock = 0;
+				return;
+			}
+		}
+		diag->fwping.result->dmastatus = BFA_STATUS_OK;
+		diag->fwping.status = BFA_STATUS_OK;
+		diag->fwping.cbfn(diag->fwping.cbarg, diag->fwping.status);
+		diag->fwping.lock = 0;
+	} else {
+		diag->fwping.status = BFA_STATUS_HDMA_FAILED;
+		diag->fwping.cbfn(diag->fwping.cbarg, diag->fwping.status);
+		diag->fwping.lock = 0;
+	}
+}
+
+/*
+ * Temperature Sensor
+ */
+
+static void
+diag_tempsensor_send(struct bfa_diag_s *diag)
+{
+	struct bfi_diag_ts_req_s *msg;
+
+	msg = (struct bfi_diag_ts_req_s *)diag->tsensor.mbcmd.msg;
+	bfa_trc(diag, msg->temp);
+	/* build host command */
+	bfi_h2i_set(msg->mh, BFI_MC_DIAG, BFI_DIAG_H2I_TEMPSENSOR,
+		bfa_ioc_portid(diag->ioc));
+	/* send mbox cmd */
+	bfa_ioc_mbox_queue(diag->ioc, &diag->tsensor.mbcmd);
+}
+
+static void
+diag_tempsensor_comp(struct bfa_diag_s *diag, bfi_diag_ts_rsp_t *rsp)
+{
+	if (!diag->tsensor.lock) {
+		/* receiving response after ioc failure */
+		bfa_trc(diag, diag->tsensor.lock);
+		return;
+	}
+
+	/*
+	 * ASIC junction tempsensor is a reg read operation
+	 * it will always return OK
+	 */
+	diag->tsensor.temp->temp = be16_to_cpu(rsp->temp);
+	diag->tsensor.temp->ts_junc = rsp->ts_junc;
+	diag->tsensor.temp->ts_brd = rsp->ts_brd;
+	diag->tsensor.temp->status = BFA_STATUS_OK;
+
+	if (rsp->ts_brd) {
+		if (rsp->status == BFA_STATUS_OK) {
+			diag->tsensor.temp->brd_temp =
+				be16_to_cpu(rsp->brd_temp);
+		} else {
+			bfa_trc(diag, rsp->status);
+			diag->tsensor.temp->brd_temp = 0;
+			diag->tsensor.temp->status = BFA_STATUS_DEVBUSY;
+		}
+	}
+	bfa_trc(diag, rsp->ts_junc);
+	bfa_trc(diag, rsp->temp);
+	bfa_trc(diag, rsp->ts_brd);
+	bfa_trc(diag, rsp->brd_temp);
+	diag->tsensor.cbfn(diag->tsensor.cbarg, diag->tsensor.status);
+	diag->tsensor.lock = 0;
+}
+
+/*
+ *	LED Test command
+ */
+static void
+diag_ledtest_send(struct bfa_diag_s *diag, struct bfa_diag_ledtest_s *ledtest)
+{
+	struct bfi_diag_ledtest_req_s  *msg;
+
+	msg = (struct bfi_diag_ledtest_req_s *)diag->ledtest.mbcmd.msg;
+	/* build host command */
+	bfi_h2i_set(msg->mh, BFI_MC_DIAG, BFI_DIAG_H2I_LEDTEST,
+			bfa_ioc_portid(diag->ioc));
+
+	/*
+	 * convert the freq from N blinks per 10 sec to
+	 * crossbow ontime value. We do it here because division is need
+	 */
+	if (ledtest->freq)
+		ledtest->freq = 500 / ledtest->freq;
+
+	if (ledtest->freq == 0)
+		ledtest->freq = 1;
+
+	bfa_trc(diag, ledtest->freq);
+	/* mcpy(&ledtest_req->req, ledtest, sizeof(bfa_diag_ledtest_t)); */
+	msg->cmd = (u8) ledtest->cmd;
+	msg->color = (u8) ledtest->color;
+	msg->portid = bfa_ioc_portid(diag->ioc);
+	msg->led = ledtest->led;
+	msg->freq = cpu_to_be16(ledtest->freq);
+
+	/* send mbox cmd */
+	bfa_ioc_mbox_queue(diag->ioc, &diag->ledtest.mbcmd);
+}
+
+static void
+diag_ledtest_comp(struct bfa_diag_s *diag, struct bfi_diag_ledtest_rsp_s * msg)
+{
+	bfa_trc(diag, diag->ledtest.lock);
+	diag->ledtest.lock = BFA_FALSE;
+	/* no bfa_cb_queue is needed because driver is not waiting */
+}
+
+/*
+ * Port beaconing
+ */
+static void
+diag_portbeacon_send(struct bfa_diag_s *diag, bfa_boolean_t beacon, u32 sec)
+{
+	struct bfi_diag_portbeacon_req_s *msg;
+
+	msg = (struct bfi_diag_portbeacon_req_s *)diag->beacon.mbcmd.msg;
+	/* build host command */
+	bfi_h2i_set(msg->mh, BFI_MC_DIAG, BFI_DIAG_H2I_PORTBEACON,
+		bfa_ioc_portid(diag->ioc));
+	msg->beacon = beacon;
+	msg->period = cpu_to_be32(sec);
+	/* send mbox cmd */
+	bfa_ioc_mbox_queue(diag->ioc, &diag->beacon.mbcmd);
+}
+
+static void
+diag_portbeacon_comp(struct bfa_diag_s *diag)
+{
+	bfa_trc(diag, diag->beacon.state);
+	diag->beacon.state = BFA_FALSE;
+	if (diag->cbfn_beacon)
+		diag->cbfn_beacon(diag->dev, BFA_FALSE, diag->beacon.link_e2e);
+}
+
+/*
+ *	Diag hmbox handler
+ */
+void
+bfa_diag_intr(void *diagarg, struct bfi_mbmsg_s *msg)
+{
+	struct bfa_diag_s *diag = diagarg;
+
+	switch (msg->mh.msg_id) {
+	case BFI_DIAG_I2H_PORTBEACON:
+		diag_portbeacon_comp(diag);
+		break;
+	case BFI_DIAG_I2H_FWPING:
+		diag_fwping_comp(diag, (struct bfi_diag_fwping_rsp_s *) msg);
+		break;
+	case BFI_DIAG_I2H_TEMPSENSOR:
+		diag_tempsensor_comp(diag, (bfi_diag_ts_rsp_t *) msg);
+		break;
+	case BFI_DIAG_I2H_LEDTEST:
+		diag_ledtest_comp(diag, (struct bfi_diag_ledtest_rsp_s *) msg);
+		break;
+	default:
+		bfa_trc(diag, msg->mh.msg_id);
+		WARN_ON(1);
+	}
+}
+
+/*
+ * Gen RAM Test
+ *
+ *   @param[in] *diag           - diag data struct
+ *   @param[in] *memtest        - mem test params input from upper layer,
+ *   @param[in] pattern         - mem test pattern
+ *   @param[in] *result         - mem test result
+ *   @param[in] cbfn            - mem test callback functioin
+ *   @param[in] cbarg           - callback functioin arg
+ *
+ *   @param[out]
+ */
+bfa_status_t
+bfa_diag_memtest(struct bfa_diag_s *diag, struct bfa_diag_memtest_s *memtest,
+		u32 pattern, struct bfa_diag_memtest_result *result,
+		bfa_cb_diag_t cbfn, void *cbarg)
+{
+	bfa_trc(diag, pattern);
+
+	if (!bfa_ioc_adapter_is_disabled(diag->ioc))
+		return BFA_STATUS_ADAPTER_ENABLED;
+
+	/* check to see if there is another destructive diag cmd running */
+	if (diag->block) {
+		bfa_trc(diag, diag->block);
+		return BFA_STATUS_DEVBUSY;
+	} else
+		diag->block = 1;
+
+	diag->result = result;
+	diag->cbfn = cbfn;
+	diag->cbarg = cbarg;
+
+	/* download memtest code and take LPU0 out of reset */
+	bfa_ioc_boot(diag->ioc, BFI_FWBOOT_TYPE_MEMTEST, BFI_FWBOOT_ENV_OS);
+
+	bfa_timer_begin(diag->ioc->timer_mod, &diag->timer,
+			bfa_diag_memtest_done, diag, BFA_DIAG_MEMTEST_TOV);
+	diag->timer_active = 1;
+	return BFA_STATUS_OK;
+}
+
+/*
+ * DIAG firmware ping command
+ *
+ *   @param[in] *diag           - diag data struct
+ *   @param[in] cnt             - dma loop count for testing PCIE
+ *   @param[in] data            - data pattern to pass in fw
+ *   @param[in] *result         - pt to bfa_diag_fwping_result_t data struct
+ *   @param[in] cbfn            - callback function
+ *   @param[in] *cbarg          - callback functioin arg
+ *
+ *   @param[out]
+ */
+bfa_status_t
+bfa_diag_fwping(struct bfa_diag_s *diag, u32 cnt, u32 data,
+		struct bfa_diag_results_fwping *result, bfa_cb_diag_t cbfn,
+		void *cbarg)
+{
+	bfa_trc(diag, cnt);
+	bfa_trc(diag, data);
+
+	if (!bfa_ioc_is_operational(diag->ioc))
+		return BFA_STATUS_IOC_NON_OP;
+
+	if (bfa_asic_id_ct2(bfa_ioc_devid((diag->ioc))) &&
+	    ((diag->ioc)->clscode == BFI_PCIFN_CLASS_ETH))
+		return BFA_STATUS_CMD_NOTSUPP;
+
+	/* check to see if there is another destructive diag cmd running */
+	if (diag->block || diag->fwping.lock) {
+		bfa_trc(diag, diag->block);
+		bfa_trc(diag, diag->fwping.lock);
+		return BFA_STATUS_DEVBUSY;
+	}
+
+	/* Initialization */
+	diag->fwping.lock = 1;
+	diag->fwping.cbfn = cbfn;
+	diag->fwping.cbarg = cbarg;
+	diag->fwping.result = result;
+	diag->fwping.data = data;
+	diag->fwping.count = cnt;
+
+	/* Init test results */
+	diag->fwping.result->data = 0;
+	diag->fwping.result->status = BFA_STATUS_OK;
+
+	/* kick off the first ping */
+	diag_fwping_send(diag);
+	return BFA_STATUS_OK;
+}
+
+/*
+ * Read Temperature Sensor
+ *
+ *   @param[in] *diag           - diag data struct
+ *   @param[in] *result         - pt to bfa_diag_temp_t data struct
+ *   @param[in] cbfn            - callback function
+ *   @param[in] *cbarg          - callback functioin arg
+ *
+ *   @param[out]
+ */
+bfa_status_t
+bfa_diag_tsensor_query(struct bfa_diag_s *diag,
+		struct bfa_diag_results_tempsensor_s *result,
+		bfa_cb_diag_t cbfn, void *cbarg)
+{
+	/* check to see if there is a destructive diag cmd running */
+	if (diag->block || diag->tsensor.lock) {
+		bfa_trc(diag, diag->block);
+		bfa_trc(diag, diag->tsensor.lock);
+		return BFA_STATUS_DEVBUSY;
+	}
+
+	if (!bfa_ioc_is_operational(diag->ioc))
+		return BFA_STATUS_IOC_NON_OP;
+
+	/* Init diag mod params */
+	diag->tsensor.lock = 1;
+	diag->tsensor.temp = result;
+	diag->tsensor.cbfn = cbfn;
+	diag->tsensor.cbarg = cbarg;
+
+	/* Send msg to fw */
+	diag_tempsensor_send(diag);
+
+	return BFA_STATUS_OK;
+}
+
+/*
+ * LED Test command
+ *
+ *   @param[in] *diag           - diag data struct
+ *   @param[in] *ledtest        - pt to ledtest data structure
+ *
+ *   @param[out]
+ */
+bfa_status_t
+bfa_diag_ledtest(struct bfa_diag_s *diag, struct bfa_diag_ledtest_s *ledtest)
+{
+	bfa_trc(diag, ledtest->cmd);
+
+	if (!bfa_ioc_is_operational(diag->ioc))
+		return BFA_STATUS_IOC_NON_OP;
+
+	if (diag->beacon.state)
+		return BFA_STATUS_BEACON_ON;
+
+	if (diag->ledtest.lock)
+		return BFA_STATUS_LEDTEST_OP;
+
+	/* Send msg to fw */
+	diag->ledtest.lock = BFA_TRUE;
+	diag_ledtest_send(diag, ledtest);
+
+	return BFA_STATUS_OK;
+}
+
+/*
+ * Port beaconing command
+ *
+ *   @param[in] *diag           - diag data struct
+ *   @param[in] beacon          - port beaconing 1:ON   0:OFF
+ *   @param[in] link_e2e_beacon - link beaconing 1:ON   0:OFF
+ *   @param[in] sec             - beaconing duration in seconds
+ *
+ *   @param[out]
+ */
+bfa_status_t
+bfa_diag_beacon_port(struct bfa_diag_s *diag, bfa_boolean_t beacon,
+		bfa_boolean_t link_e2e_beacon, uint32_t sec)
+{
+	bfa_trc(diag, beacon);
+	bfa_trc(diag, link_e2e_beacon);
+	bfa_trc(diag, sec);
+
+	if (!bfa_ioc_is_operational(diag->ioc))
+		return BFA_STATUS_IOC_NON_OP;
+
+	if (diag->ledtest.lock)
+		return BFA_STATUS_LEDTEST_OP;
+
+	if (diag->beacon.state && beacon)       /* beacon alread on */
+		return BFA_STATUS_BEACON_ON;
+
+	diag->beacon.state	= beacon;
+	diag->beacon.link_e2e	= link_e2e_beacon;
+	if (diag->cbfn_beacon)
+		diag->cbfn_beacon(diag->dev, beacon, link_e2e_beacon);
+
+	/* Send msg to fw */
+	diag_portbeacon_send(diag, beacon, sec);
+
+	return BFA_STATUS_OK;
+}
+
+/*
+ * Return DMA memory needed by diag module.
+ */
+u32
+bfa_diag_meminfo(void)
+{
+	return BFA_ROUNDUP(BFI_DIAG_DMA_BUF_SZ, BFA_DMA_ALIGN_SZ);
+}
+
+/*
+ *	Attach virtual and physical memory for Diag.
+ */
+void
+bfa_diag_attach(struct bfa_diag_s *diag, struct bfa_ioc_s *ioc, void *dev,
+	bfa_cb_diag_beacon_t cbfn_beacon, struct bfa_trc_mod_s *trcmod)
+{
+	diag->dev = dev;
+	diag->ioc = ioc;
+	diag->trcmod = trcmod;
+
+	diag->block = 0;
+	diag->cbfn = NULL;
+	diag->cbarg = NULL;
+	diag->result = NULL;
+	diag->cbfn_beacon = cbfn_beacon;
+
+	bfa_ioc_mbox_regisr(diag->ioc, BFI_MC_DIAG, bfa_diag_intr, diag);
+	bfa_q_qe_init(&diag->ioc_notify);
+	bfa_ioc_notify_init(&diag->ioc_notify, bfa_diag_notify, diag);
+	list_add_tail(&diag->ioc_notify.qe, &diag->ioc->notify_q);
+}
+
+void
+bfa_diag_memclaim(struct bfa_diag_s *diag, u8 *dm_kva, u64 dm_pa)
+{
+	diag->fwping.dbuf_kva = dm_kva;
+	diag->fwping.dbuf_pa = dm_pa;
+	memset(diag->fwping.dbuf_kva, 0, BFI_DIAG_DMA_BUF_SZ);
+}
diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
index c302b996b92..5bcab540ea6 100644
--- a/drivers/scsi/bfa/bfa_ioc.h
+++ b/drivers/scsi/bfa/bfa_ioc.h
@@ -491,6 +491,147 @@ void bfa_flash_attach(struct bfa_flash_s *flash, struct bfa_ioc_s *ioc,
 void bfa_flash_memclaim(struct bfa_flash_s *flash,
 		u8 *dm_kva, u64 dm_pa, bfa_boolean_t mincfg);
 
+/*
+ *	DIAG module specific
+ */
+
+typedef void (*bfa_cb_diag_t) (void *cbarg, bfa_status_t status);
+typedef void (*bfa_cb_diag_beacon_t) (void *dev, bfa_boolean_t beacon,
+			bfa_boolean_t link_e2e_beacon);
+
+/*
+ *      Firmware ping test results
+ */
+struct bfa_diag_results_fwping {
+	u32     data;   /* store the corrupted data */
+	u32     status;
+	u32     dmastatus;
+	u8      rsvd[4];
+};
+
+struct bfa_diag_qtest_result_s {
+	u32	status;
+	u16	count;	/* sucessful queue test count */
+	u8	queue;
+	u8	rsvd;	/* 64-bit align */
+};
+
+/*
+ * Firmware ping test results
+ */
+struct bfa_diag_fwping_s {
+	struct bfa_diag_results_fwping *result;
+	bfa_cb_diag_t  cbfn;
+	void            *cbarg;
+	u32             data;
+	u8              lock;
+	u8              rsv[3];
+	u32             status;
+	u32             count;
+	struct bfa_mbox_cmd_s   mbcmd;
+	u8              *dbuf_kva;      /* dma buf virtual address */
+	u64             dbuf_pa;        /* dma buf physical address */
+};
+
+/*
+ *      Temperature sensor query results
+ */
+struct bfa_diag_results_tempsensor_s {
+	u32     status;
+	u16     temp;           /* 10-bit A/D value */
+	u16     brd_temp;       /* 9-bit board temp */
+	u8      ts_junc;        /* show junction tempsensor   */
+	u8      ts_brd;         /* show board tempsensor      */
+	u8      rsvd[6];        /* keep 8 bytes alignment     */
+};
+
+struct bfa_diag_tsensor_s {
+	bfa_cb_diag_t   cbfn;
+	void            *cbarg;
+	struct bfa_diag_results_tempsensor_s *temp;
+	u8              lock;
+	u8              rsv[3];
+	u32             status;
+	struct bfa_mbox_cmd_s   mbcmd;
+};
+
+struct bfa_diag_sfpshow_s {
+	struct sfp_mem_s        *sfpmem;
+	bfa_cb_diag_t           cbfn;
+	void                    *cbarg;
+	u8      lock;
+	u8      static_data;
+	u8      rsv[2];
+	u32     status;
+	struct bfa_mbox_cmd_s    mbcmd;
+	u8      *dbuf_kva;      /* dma buf virtual address */
+	u64     dbuf_pa;        /* dma buf physical address */
+};
+
+struct bfa_diag_led_s {
+	struct bfa_mbox_cmd_s   mbcmd;
+	bfa_boolean_t   lock;   /* 1: ledtest is operating */
+};
+
+struct bfa_diag_beacon_s {
+	struct bfa_mbox_cmd_s   mbcmd;
+	bfa_boolean_t   state;          /* port beacon state */
+	bfa_boolean_t   link_e2e;       /* link beacon state */
+};
+
+struct bfa_diag_s {
+	void	*dev;
+	struct bfa_ioc_s		*ioc;
+	struct bfa_trc_mod_s		*trcmod;
+	struct bfa_diag_fwping_s	fwping;
+	struct bfa_diag_tsensor_s	tsensor;
+	struct bfa_diag_sfpshow_s	sfpshow;
+	struct bfa_diag_led_s		ledtest;
+	struct bfa_diag_beacon_s	beacon;
+	void	*result;
+	struct bfa_timer_s timer;
+	bfa_cb_diag_beacon_t  cbfn_beacon;
+	bfa_cb_diag_t  cbfn;
+	void		*cbarg;
+	u8		block;
+	u8		timer_active;
+	u8		rsvd[2];
+	u32		status;
+	struct bfa_ioc_notify_s	ioc_notify;
+	struct bfa_mem_dma_s	diag_dma;
+};
+
+#define BFA_DIAG_MOD(__bfa)     (&(__bfa)->modules.diag_mod)
+#define BFA_MEM_DIAG_DMA(__bfa) (&(BFA_DIAG_MOD(__bfa)->diag_dma))
+
+u32	bfa_diag_meminfo(void);
+void bfa_diag_memclaim(struct bfa_diag_s *diag, u8 *dm_kva, u64 dm_pa);
+void bfa_diag_attach(struct bfa_diag_s *diag, struct bfa_ioc_s *ioc, void *dev,
+		     bfa_cb_diag_beacon_t cbfn_beacon,
+		     struct bfa_trc_mod_s *trcmod);
+bfa_status_t	bfa_diag_reg_read(struct bfa_diag_s *diag, u32 offset,
+			u32 len, u32 *buf, u32 force);
+bfa_status_t	bfa_diag_reg_write(struct bfa_diag_s *diag, u32 offset,
+			u32 len, u32 value, u32 force);
+bfa_status_t	bfa_diag_tsensor_query(struct bfa_diag_s *diag,
+			struct bfa_diag_results_tempsensor_s *result,
+			bfa_cb_diag_t cbfn, void *cbarg);
+bfa_status_t	bfa_diag_fwping(struct bfa_diag_s *diag, u32 cnt,
+			u32 pattern, struct bfa_diag_results_fwping *result,
+			bfa_cb_diag_t cbfn, void *cbarg);
+bfa_status_t	bfa_diag_sfpshow(struct bfa_diag_s *diag,
+			struct sfp_mem_s *sfpmem, u8 static_data,
+			bfa_cb_diag_t cbfn, void *cbarg);
+bfa_status_t	bfa_diag_memtest(struct bfa_diag_s *diag,
+			struct bfa_diag_memtest_s *memtest, u32 pattern,
+			struct bfa_diag_memtest_result *result,
+			bfa_cb_diag_t cbfn, void *cbarg);
+bfa_status_t	bfa_diag_ledtest(struct bfa_diag_s *diag,
+			struct bfa_diag_ledtest_s *ledtest);
+bfa_status_t	bfa_diag_beacon_port(struct bfa_diag_s *diag,
+			bfa_boolean_t beacon, bfa_boolean_t link_e2e_beacon,
+			u32 sec);
+
 #define bfa_ioc_pcifn(__ioc)		((__ioc)->pcidev.pci_func)
 #define bfa_ioc_devid(__ioc)		((__ioc)->pcidev.device_id)
 #define bfa_ioc_bar0(__ioc)		((__ioc)->pcidev.pci_bar_kva)
diff --git a/drivers/scsi/bfa/bfa_modules.h b/drivers/scsi/bfa/bfa_modules.h
index f7783f0d326..c6b2fe7ed96 100644
--- a/drivers/scsi/bfa/bfa_modules.h
+++ b/drivers/scsi/bfa/bfa_modules.h
@@ -29,6 +29,7 @@
 #include "bfa_port.h"
 
 struct bfa_modules_s {
+	struct bfa_fcdiag_s	fcdiag;		/* fcdiag module */
 	struct bfa_fcport_s	fcport;		/*  fc port module	      */
 	struct bfa_fcxp_mod_s	fcxp_mod;	/*  fcxp module	      */
 	struct bfa_lps_mod_s	lps_mod;	/*  fcxp module	      */
@@ -41,6 +42,7 @@ struct bfa_modules_s {
 	struct bfa_cee_s	cee;		/*  CEE Module	*/
 	struct bfa_sfp_s	sfp;		/*  SFP module	*/
 	struct bfa_flash_s	flash;		/*  flash module */
+	struct bfa_diag_s	diag_mod;	/*  diagnostics module	*/
 };
 
 /*
@@ -119,6 +121,7 @@ struct bfa_s {
 };
 
 extern bfa_boolean_t bfa_auto_recover;
+extern struct bfa_module_s hal_mod_fcdiag;
 extern struct bfa_module_s hal_mod_sgpg;
 extern struct bfa_module_s hal_mod_fcport;
 extern struct bfa_module_s hal_mod_fcxp;
diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c
index d7853e698d0..21caaefce99 100644
--- a/drivers/scsi/bfa/bfa_svc.c
+++ b/drivers/scsi/bfa/bfa_svc.c
@@ -21,6 +21,7 @@
 #include "bfa_modules.h"
 
 BFA_TRC_FILE(HAL, FCXP);
+BFA_MODULE(fcdiag);
 BFA_MODULE(fcxp);
 BFA_MODULE(sgpg);
 BFA_MODULE(lps);
@@ -3872,6 +3873,22 @@ bfa_fcport_get_ratelim_speed(struct bfa_s *bfa)
 
 }
 
+void
+bfa_fcport_beacon(void *dev, bfa_boolean_t beacon,
+		  bfa_boolean_t link_e2e_beacon)
+{
+	struct bfa_s *bfa = dev;
+	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
+
+	bfa_trc(bfa, beacon);
+	bfa_trc(bfa, link_e2e_beacon);
+	bfa_trc(bfa, fcport->beacon);
+	bfa_trc(bfa, fcport->link_e2e_beacon);
+
+	fcport->beacon = beacon;
+	fcport->link_e2e_beacon = link_e2e_beacon;
+}
+
 bfa_boolean_t
 bfa_fcport_is_linkup(struct bfa_s *bfa)
 {
@@ -5224,3 +5241,403 @@ bfa_uf_res_recfg(struct bfa_s *bfa, u16 num_uf_fw)
 		list_add_tail(qe, &mod->uf_unused_q);
 	}
 }
+
+/*
+ *	BFA fcdiag module
+ */
+#define BFA_DIAG_QTEST_TOV	1000    /* msec */
+
+/*
+ *	Set port status to busy
+ */
+static void
+bfa_fcdiag_set_busy_status(struct bfa_fcdiag_s *fcdiag)
+{
+	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(fcdiag->bfa);
+
+	if (fcdiag->lb.lock)
+		fcport->diag_busy = BFA_TRUE;
+	else
+		fcport->diag_busy = BFA_FALSE;
+}
+
+static void
+bfa_fcdiag_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
+		struct bfa_s *bfa)
+{
+}
+
+static void
+bfa_fcdiag_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
+		struct bfa_pcidev_s *pcidev)
+{
+	struct bfa_fcdiag_s *fcdiag = BFA_FCDIAG_MOD(bfa);
+	fcdiag->bfa             = bfa;
+	fcdiag->trcmod  = bfa->trcmod;
+	/* The common DIAG attach bfa_diag_attach() will do all memory claim */
+}
+
+static void
+bfa_fcdiag_iocdisable(struct bfa_s *bfa)
+{
+	struct bfa_fcdiag_s *fcdiag = BFA_FCDIAG_MOD(bfa);
+	bfa_trc(fcdiag, fcdiag->lb.lock);
+	if (fcdiag->lb.lock) {
+		fcdiag->lb.status = BFA_STATUS_IOC_FAILURE;
+		fcdiag->lb.cbfn(fcdiag->lb.cbarg, fcdiag->lb.status);
+		fcdiag->lb.lock = 0;
+		bfa_fcdiag_set_busy_status(fcdiag);
+	}
+}
+
+static void
+bfa_fcdiag_detach(struct bfa_s *bfa)
+{
+}
+
+static void
+bfa_fcdiag_start(struct bfa_s *bfa)
+{
+}
+
+static void
+bfa_fcdiag_stop(struct bfa_s *bfa)
+{
+}
+