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Commit 51e569aa authored by Krishna Gudipati's avatar Krishna Gudipati Committed by James Bottomley
Browse files

[SCSI] bfa: Added support to obtain SFP info. 



- Added SFP sub-module to BFA.
- Added interface to collect sfp media info and sfp speed.

Signed-off-by: default avatarKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 148d6103

drivers/scsi/bfa/bfa_core.c

+13 −0
Original line number Diff line number Diff line
@@ -122,6 +122,16 @@ bfa_com_cee_attach(struct bfa_s *bfa) 
	bfa_cee_mem_claim(cee, cee_dma->kva_curp, cee_dma->dma_curp);

}



static void

bfa_com_sfp_attach(struct bfa_s *bfa)

{

	struct bfa_sfp_s	*sfp = BFA_SFP_MOD(bfa);

	struct bfa_mem_dma_s	*sfp_dma = BFA_MEM_SFP_DMA(bfa);



	bfa_sfp_attach(sfp, &bfa->ioc, bfa, bfa->trcmod);

	bfa_sfp_memclaim(sfp, sfp_dma->kva_curp, sfp_dma->dma_curp);

}



/*

 * BFA IOC FC related definitions

 */
@@ -1360,6 +1370,7 @@ bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo, 
	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);

	struct bfa_mem_dma_s *sfp_dma = BFA_MEM_SFP_DMA(bfa);



	WARN_ON((cfg == NULL) || (meminfo == NULL));
@@ -1378,6 +1389,7 @@ bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo, 
	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());

	bfa_mem_dma_setup(meminfo, sfp_dma, bfa_sfp_meminfo());

}



/*
@@ -1446,6 +1458,7 @@ 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);

	bfa_com_sfp_attach(bfa);

}



/*

drivers/scsi/bfa/bfa_defs.h

+266 −0
Original line number Diff line number Diff line
@@ -130,6 +130,7 @@ enum bfa_status { 
	BFA_STATUS_ETIMER	= 5,	/*  Timer expired - Retry, if persists,

					 *  contact support */

	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_DEVBUSY	= 13,	/*  Device busy - Retry operation */

	BFA_STATUS_UNKNOWN_LWWN = 18,	/*  LPORT PWWN not found */
@@ -150,9 +151,11 @@ enum bfa_status { 
	BFA_STATUS_DIAG_BUSY	= 71,	/*  diag busy */

	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_INVALID_MAC  = 134, /*  Invalid MAC address */

	BFA_STATUS_PBC		= 154, /*  Operation not allowed for pre-boot

					*  configuration */

	BFA_STATUS_SFP_NOT_READY = 159,	/* SFP info is not ready. Retry */

	BFA_STATUS_TRUNK_ENABLED = 164, /* Trunk is already enabled on

					 * this adapter */

	BFA_STATUS_TRUNK_DISABLED  = 165, /* Trunking is disabled on
@@ -559,6 +562,269 @@ struct bfa_ablk_cfg_inst_s { 
struct bfa_ablk_cfg_s {

	struct bfa_ablk_cfg_inst_s	inst[BFA_ABLK_MAX];

};





/*

 *	SFP module specific

 */

#define SFP_DIAGMON_SIZE	10 /* num bytes of diag monitor data */



enum bfa_defs_sfp_media_e {

	BFA_SFP_MEDIA_UNKNOWN	= 0x00,

	BFA_SFP_MEDIA_CU	= 0x01,

	BFA_SFP_MEDIA_LW	= 0x02,

	BFA_SFP_MEDIA_SW	= 0x03,

	BFA_SFP_MEDIA_EL	= 0x04,

	BFA_SFP_MEDIA_UNSUPPORT	= 0x05,

};



/*

 * values for xmtr_tech above

 */

enum {

	SFP_XMTR_TECH_CU = (1 << 0),	/* copper FC-BaseT */

	SFP_XMTR_TECH_CP = (1 << 1),	/* copper passive */

	SFP_XMTR_TECH_CA = (1 << 2),	/* copper active */

	SFP_XMTR_TECH_LL = (1 << 3),	/* longwave laser */

	SFP_XMTR_TECH_SL = (1 << 4),	/* shortwave laser w/ OFC */

	SFP_XMTR_TECH_SN = (1 << 5),	/* shortwave laser w/o OFC */

	SFP_XMTR_TECH_EL_INTRA = (1 << 6), /* elec intra-enclosure */

	SFP_XMTR_TECH_EL_INTER = (1 << 7), /* elec inter-enclosure */

	SFP_XMTR_TECH_LC = (1 << 8),	/* longwave laser */

	SFP_XMTR_TECH_SA = (1 << 9)

};



/*

 * Serial ID: Data Fields -- Address A0h

 * Basic ID field total 64 bytes

 */

struct sfp_srlid_base_s {

	u8	id;		/* 00: Identifier */

	u8	extid;		/* 01: Extended Identifier */

	u8	connector;	/* 02: Connector */

	u8	xcvr[8];	/* 03-10: Transceiver */

	u8	encoding;	/* 11: Encoding */

	u8	br_norm;	/* 12: BR, Nominal */

	u8	rate_id;	/* 13: Rate Identifier */

	u8	len_km;		/* 14: Length single mode km */

	u8	len_100m;	/* 15: Length single mode 100m */

	u8	len_om2;	/* 16: Length om2 fiber 10m */

	u8	len_om1;	/* 17: Length om1 fiber 10m */

	u8	len_cu;		/* 18: Length copper 1m */

	u8	len_om3;	/* 19: Length om3 fiber 10m */

	u8	vendor_name[16];/* 20-35 */

	u8	unalloc1;

	u8	vendor_oui[3];	/* 37-39 */

	u8	vendor_pn[16];	/* 40-55 */

	u8	vendor_rev[4];	/* 56-59 */

	u8	wavelen[2];	/* 60-61 */

	u8	unalloc2;

	u8	cc_base;	/* 63: check code for base id field */

};



/*

 * Serial ID: Data Fields -- Address A0h

 * Extended id field total 32 bytes

 */

struct sfp_srlid_ext_s {

	u8	options[2];

	u8	br_max;

	u8	br_min;

	u8	vendor_sn[16];

	u8	date_code[8];

	u8	diag_mon_type;  /* 92: Diagnostic Monitoring type */

	u8	en_options;

	u8	sff_8472;

	u8	cc_ext;

};



/*

 * Diagnostic: Data Fields -- Address A2h

 * Diagnostic and control/status base field total 96 bytes

 */

struct sfp_diag_base_s {

	/*

	 * Alarm and warning Thresholds 40 bytes

	 */

	u8	temp_high_alarm[2]; /* 00-01 */

	u8	temp_low_alarm[2];  /* 02-03 */

	u8	temp_high_warning[2];   /* 04-05 */

	u8	temp_low_warning[2];    /* 06-07 */



	u8	volt_high_alarm[2]; /* 08-09 */

	u8	volt_low_alarm[2];  /* 10-11 */

	u8	volt_high_warning[2];   /* 12-13 */

	u8	volt_low_warning[2];    /* 14-15 */



	u8	bias_high_alarm[2]; /* 16-17 */

	u8	bias_low_alarm[2];  /* 18-19 */

	u8	bias_high_warning[2];   /* 20-21 */

	u8	bias_low_warning[2];    /* 22-23 */



	u8	tx_pwr_high_alarm[2];   /* 24-25 */

	u8	tx_pwr_low_alarm[2];    /* 26-27 */

	u8	tx_pwr_high_warning[2]; /* 28-29 */

	u8	tx_pwr_low_warning[2];  /* 30-31 */



	u8	rx_pwr_high_alarm[2];   /* 32-33 */

	u8	rx_pwr_low_alarm[2];    /* 34-35 */

	u8	rx_pwr_high_warning[2]; /* 36-37 */

	u8	rx_pwr_low_warning[2];  /* 38-39 */



	u8	unallocate_1[16];



	/*

	 * ext_cal_const[36]

	 */

	u8	rx_pwr[20];

	u8	tx_i[4];

	u8	tx_pwr[4];

	u8	temp[4];

	u8	volt[4];

	u8	unallocate_2[3];

	u8	cc_dmi;

};



/*

 * Diagnostic: Data Fields -- Address A2h

 * Diagnostic and control/status extended field total 24 bytes

 */

struct sfp_diag_ext_s {

	u8	diag[SFP_DIAGMON_SIZE];

	u8	unalloc1[4];

	u8	status_ctl;

	u8	rsvd;

	u8	alarm_flags[2];

	u8	unalloc2[2];

	u8	warning_flags[2];

	u8	ext_status_ctl[2];

};



struct sfp_mem_s {

	struct sfp_srlid_base_s	srlid_base;

	struct sfp_srlid_ext_s	srlid_ext;

	struct sfp_diag_base_s	diag_base;

	struct sfp_diag_ext_s	diag_ext;

};



/*

 * transceiver codes (SFF-8472 Rev 10.2 Table 3.5)

 */

union sfp_xcvr_e10g_code_u {

	u8		b;

	struct {

#ifdef __BIGENDIAN

		u8	e10g_unall:1;   /* 10G Ethernet compliance */

		u8	e10g_lrm:1;

		u8	e10g_lr:1;

		u8	e10g_sr:1;

		u8	ib_sx:1;    /* Infiniband compliance */

		u8	ib_lx:1;

		u8	ib_cu_a:1;

		u8	ib_cu_p:1;

#else

		u8	ib_cu_p:1;

		u8	ib_cu_a:1;

		u8	ib_lx:1;

		u8	ib_sx:1;    /* Infiniband compliance */

		u8	e10g_sr:1;

		u8	e10g_lr:1;

		u8	e10g_lrm:1;

		u8	e10g_unall:1;   /* 10G Ethernet compliance */

#endif

	} r;

};



union sfp_xcvr_so1_code_u {

	u8		b;

	struct {

		u8	escon:2;    /* ESCON compliance code */

		u8	oc192_reach:1;  /* SONET compliance code */

		u8	so_reach:2;

		u8	oc48_reach:3;

	} r;

};



union sfp_xcvr_so2_code_u {

	u8		b;

	struct {

		u8	reserved:1;

		u8	oc12_reach:3;   /* OC12 reach */

		u8	reserved1:1;

		u8	oc3_reach:3;    /* OC3 reach */

	} r;

};



union sfp_xcvr_eth_code_u {

	u8		b;

	struct {

		u8	base_px:1;

		u8	base_bx10:1;

		u8	e100base_fx:1;

		u8	e100base_lx:1;

		u8	e1000base_t:1;

		u8	e1000base_cx:1;

		u8	e1000base_lx:1;

		u8	e1000base_sx:1;

	} r;

};



struct sfp_xcvr_fc1_code_s {

	u8	link_len:5; /* FC link length */

	u8	xmtr_tech2:3;

	u8	xmtr_tech1:7;   /* FC transmitter technology */

	u8	reserved1:1;

};



union sfp_xcvr_fc2_code_u {

	u8		b;

	struct {

		u8	tw_media:1; /* twin axial pair (tw) */

		u8	tp_media:1; /* shielded twisted pair (sp) */

		u8	mi_media:1; /* miniature coax (mi) */

		u8	tv_media:1; /* video coax (tv) */

		u8	m6_media:1; /* multimode, 62.5m (m6) */

		u8	m5_media:1; /* multimode, 50m (m5) */

		u8	reserved:1;

		u8	sm_media:1; /* single mode (sm) */

	} r;

};



union sfp_xcvr_fc3_code_u {

	u8		b;

	struct {

#ifdef __BIGENDIAN

		u8	rsv4:1;

		u8	mb800:1;    /* 800 Mbytes/sec */

		u8	mb1600:1;   /* 1600 Mbytes/sec */

		u8	mb400:1;    /* 400 Mbytes/sec */

		u8	rsv2:1;

		u8	mb200:1;    /* 200 Mbytes/sec */

		u8	rsv1:1;

		u8	mb100:1;    /* 100 Mbytes/sec */

#else

		u8	mb100:1;    /* 100 Mbytes/sec */

		u8	rsv1:1;

		u8	mb200:1;    /* 200 Mbytes/sec */

		u8	rsv2:1;

		u8	mb400:1;    /* 400 Mbytes/sec */

		u8	mb1600:1;   /* 1600 Mbytes/sec */

		u8	mb800:1;    /* 800 Mbytes/sec */

		u8	rsv4:1;

#endif

	} r;

};



struct sfp_xcvr_s {

	union sfp_xcvr_e10g_code_u	e10g;

	union sfp_xcvr_so1_code_u	so1;

	union sfp_xcvr_so2_code_u	so2;

	union sfp_xcvr_eth_code_u	eth;

	struct sfp_xcvr_fc1_code_s	fc1;

	union sfp_xcvr_fc2_code_u	fc2;

	union sfp_xcvr_fc3_code_u	fc3;

};



#pragma pack()



#endif /* __BFA_DEFS_H__ */

drivers/scsi/bfa/bfa_ioc.c

+457 −0
Original line number Diff line number Diff line
@@ -3364,3 +3364,460 @@ bfa_ablk_optrom_dis(struct bfa_ablk_s *ablk, bfa_ablk_cbfn_t cbfn, void *cbarg) 


	return BFA_STATUS_OK;

}



/*

 *	SFP module specific

 */



/* forward declarations */

static void bfa_sfp_getdata_send(struct bfa_sfp_s *sfp);

static void bfa_sfp_media_get(struct bfa_sfp_s *sfp);

static bfa_status_t bfa_sfp_speed_valid(struct bfa_sfp_s *sfp,

				enum bfa_port_speed portspeed);



static void

bfa_cb_sfp_show(struct bfa_sfp_s *sfp)

{

	bfa_trc(sfp, sfp->lock);

	if (sfp->cbfn)

		sfp->cbfn(sfp->cbarg, sfp->status);

	sfp->lock = 0;

	sfp->cbfn = NULL;

}



static void

bfa_cb_sfp_state_query(struct bfa_sfp_s *sfp)

{

	bfa_trc(sfp, sfp->portspeed);

	if (sfp->media) {

		bfa_sfp_media_get(sfp);

		if (sfp->state_query_cbfn)

			sfp->state_query_cbfn(sfp->state_query_cbarg,

					sfp->status);

			sfp->media = NULL;

		}



		if (sfp->portspeed) {

			sfp->status = bfa_sfp_speed_valid(sfp, sfp->portspeed);

			if (sfp->state_query_cbfn)

				sfp->state_query_cbfn(sfp->state_query_cbarg,

						sfp->status);

				sfp->portspeed = BFA_PORT_SPEED_UNKNOWN;

		}



		sfp->state_query_lock = 0;

		sfp->state_query_cbfn = NULL;

}



/*

 *	IOC event handler.

 */

static void

bfa_sfp_notify(void *sfp_arg, enum bfa_ioc_event_e event)

{

	struct bfa_sfp_s *sfp = sfp_arg;



	bfa_trc(sfp, event);

	bfa_trc(sfp, sfp->lock);

	bfa_trc(sfp, sfp->state_query_lock);



	switch (event) {

	case BFA_IOC_E_DISABLED:

	case BFA_IOC_E_FAILED:

		if (sfp->lock) {

			sfp->status = BFA_STATUS_IOC_FAILURE;

			bfa_cb_sfp_show(sfp);

		}



		if (sfp->state_query_lock) {

			sfp->status = BFA_STATUS_IOC_FAILURE;

			bfa_cb_sfp_state_query(sfp);

		}

		break;



	default:

		break;

	}

}



/*

 *	SFP get data send

 */

static void

bfa_sfp_getdata_send(struct bfa_sfp_s *sfp)

{

	struct bfi_sfp_req_s *req = (struct bfi_sfp_req_s *)sfp->mbcmd.msg;



	bfa_trc(sfp, req->memtype);



	/* build host command */

	bfi_h2i_set(req->mh, BFI_MC_SFP, BFI_SFP_H2I_SHOW,

			bfa_ioc_portid(sfp->ioc));



	/* send mbox cmd */

	bfa_ioc_mbox_queue(sfp->ioc, &sfp->mbcmd);

}



/*

 *	SFP is valid, read sfp data

 */

static void

bfa_sfp_getdata(struct bfa_sfp_s *sfp, enum bfi_sfp_mem_e memtype)

{

	struct bfi_sfp_req_s *req = (struct bfi_sfp_req_s *)sfp->mbcmd.msg;



	WARN_ON(sfp->lock != 0);

	bfa_trc(sfp, sfp->state);



	sfp->lock = 1;

	sfp->memtype = memtype;

	req->memtype = memtype;



	/* Setup SG list */

	bfa_alen_set(&req->alen, sizeof(struct sfp_mem_s), sfp->dbuf_pa);



	bfa_sfp_getdata_send(sfp);

}



/*

 * SFP show complete

 */

static void

bfa_sfp_show_comp(struct bfa_sfp_s *sfp, struct bfi_mbmsg_s *msg)

{

	struct bfi_sfp_rsp_s *rsp = (struct bfi_sfp_rsp_s *) msg;



	if (!sfp->lock) {

		/*

		 * receiving response after ioc failure

		 */

		bfa_trc(sfp, sfp->lock);

		return;

	}



	bfa_trc(sfp, rsp->status);

	if (rsp->status == BFA_STATUS_OK) {

		sfp->data_valid = 1;

		if (sfp->state == BFA_SFP_STATE_VALID)

			sfp->status = BFA_STATUS_OK;

		else if (sfp->state == BFA_SFP_STATE_UNSUPPORT)

			sfp->status = BFA_STATUS_SFP_UNSUPP;

		else

			bfa_trc(sfp, sfp->state);

	} else {

		sfp->data_valid = 0;

		sfp->status = rsp->status;

		/* sfpshow shouldn't change sfp state */

	}



	bfa_trc(sfp, sfp->memtype);

	if (sfp->memtype == BFI_SFP_MEM_DIAGEXT) {

		bfa_trc(sfp, sfp->data_valid);

		if (sfp->data_valid) {

			u32	size = sizeof(struct sfp_mem_s);

			u8 *des = (u8 *) &(sfp->sfpmem->srlid_base);

			memcpy(des, sfp->dbuf_kva, size);

		}

		/*

		 * Queue completion callback.

		 */

		bfa_cb_sfp_show(sfp);

	} else

		sfp->lock = 0;



	bfa_trc(sfp, sfp->state_query_lock);

	if (sfp->state_query_lock) {

		sfp->state = rsp->state;

		/* Complete callback */

		bfa_cb_sfp_state_query(sfp);

	}

}



/*

 *	SFP query fw sfp state

 */

static void

bfa_sfp_state_query(struct bfa_sfp_s *sfp)

{

	struct bfi_sfp_req_s *req = (struct bfi_sfp_req_s *)sfp->mbcmd.msg;



	/* Should not be doing query if not in _INIT state */

	WARN_ON(sfp->state != BFA_SFP_STATE_INIT);

	WARN_ON(sfp->state_query_lock != 0);

	bfa_trc(sfp, sfp->state);



	sfp->state_query_lock = 1;

	req->memtype = 0;



	if (!sfp->lock)

		bfa_sfp_getdata(sfp, BFI_SFP_MEM_ALL);

}



static void

bfa_sfp_media_get(struct bfa_sfp_s *sfp)

{

	enum bfa_defs_sfp_media_e *media = sfp->media;



	*media = BFA_SFP_MEDIA_UNKNOWN;



	if (sfp->state == BFA_SFP_STATE_UNSUPPORT)

		*media = BFA_SFP_MEDIA_UNSUPPORT;

	else if (sfp->state == BFA_SFP_STATE_VALID) {

		union sfp_xcvr_e10g_code_u e10g;

		struct sfp_mem_s *sfpmem = (struct sfp_mem_s *)sfp->dbuf_kva;

		u16 xmtr_tech = (sfpmem->srlid_base.xcvr[4] & 0x3) << 7 |

				(sfpmem->srlid_base.xcvr[5] >> 1);



		e10g.b = sfpmem->srlid_base.xcvr[0];

		bfa_trc(sfp, e10g.b);

		bfa_trc(sfp, xmtr_tech);

		/* check fc transmitter tech */

		if ((xmtr_tech & SFP_XMTR_TECH_CU) ||

		    (xmtr_tech & SFP_XMTR_TECH_CP) ||

		    (xmtr_tech & SFP_XMTR_TECH_CA))

			*media = BFA_SFP_MEDIA_CU;

		else if ((xmtr_tech & SFP_XMTR_TECH_EL_INTRA) ||

			 (xmtr_tech & SFP_XMTR_TECH_EL_INTER))

			*media = BFA_SFP_MEDIA_EL;

		else if ((xmtr_tech & SFP_XMTR_TECH_LL) ||

			 (xmtr_tech & SFP_XMTR_TECH_LC))

			*media = BFA_SFP_MEDIA_LW;

		else if ((xmtr_tech & SFP_XMTR_TECH_SL) ||

			 (xmtr_tech & SFP_XMTR_TECH_SN) ||

			 (xmtr_tech & SFP_XMTR_TECH_SA))

			*media = BFA_SFP_MEDIA_SW;

		/* Check 10G Ethernet Compilance code */

		else if (e10g.b & 0x10)

			*media = BFA_SFP_MEDIA_SW;

		else if (e10g.b & 0x60)

			*media = BFA_SFP_MEDIA_LW;

		else if (e10g.r.e10g_unall & 0x80)

			*media = BFA_SFP_MEDIA_UNKNOWN;

		else

			bfa_trc(sfp, 0);

	} else

		bfa_trc(sfp, sfp->state);

}



static bfa_status_t

bfa_sfp_speed_valid(struct bfa_sfp_s *sfp, enum bfa_port_speed portspeed)

{

	struct sfp_mem_s *sfpmem = (struct sfp_mem_s *)sfp->dbuf_kva;

	struct sfp_xcvr_s *xcvr = (struct sfp_xcvr_s *) sfpmem->srlid_base.xcvr;

	union sfp_xcvr_fc3_code_u fc3 = xcvr->fc3;

	union sfp_xcvr_e10g_code_u e10g = xcvr->e10g;



	if (portspeed == BFA_PORT_SPEED_10GBPS) {

		if (e10g.r.e10g_sr || e10g.r.e10g_lr)

			return BFA_STATUS_OK;

		else {

			bfa_trc(sfp, e10g.b);

			return BFA_STATUS_UNSUPP_SPEED;

		}

	}

	if (((portspeed & BFA_PORT_SPEED_16GBPS) && fc3.r.mb1600) ||

	    ((portspeed & BFA_PORT_SPEED_8GBPS) && fc3.r.mb800) ||

	    ((portspeed & BFA_PORT_SPEED_4GBPS) && fc3.r.mb400) ||

	    ((portspeed & BFA_PORT_SPEED_2GBPS) && fc3.r.mb200) ||

	    ((portspeed & BFA_PORT_SPEED_1GBPS) && fc3.r.mb100))

		return BFA_STATUS_OK;

	else {

		bfa_trc(sfp, portspeed);

		bfa_trc(sfp, fc3.b);

		bfa_trc(sfp, e10g.b);

		return BFA_STATUS_UNSUPP_SPEED;

	}

}



/*

 *	SFP hmbox handler

 */

void

bfa_sfp_intr(void *sfparg, struct bfi_mbmsg_s *msg)

{

	struct bfa_sfp_s *sfp = sfparg;



	switch (msg->mh.msg_id) {

	case BFI_SFP_I2H_SHOW:

		bfa_sfp_show_comp(sfp, msg);

		break;



	case BFI_SFP_I2H_SCN:

		bfa_trc(sfp, msg->mh.msg_id);

		break;



	default:

		bfa_trc(sfp, msg->mh.msg_id);

		WARN_ON(1);

	}

}



/*

 *	Return DMA memory needed by sfp module.

 */

u32

bfa_sfp_meminfo(void)

{

	return BFA_ROUNDUP(sizeof(struct sfp_mem_s), BFA_DMA_ALIGN_SZ);

}



/*

 *	Attach virtual and physical memory for SFP.

 */

void

bfa_sfp_attach(struct bfa_sfp_s *sfp, struct bfa_ioc_s *ioc, void *dev,

		struct bfa_trc_mod_s *trcmod)

{

	sfp->dev = dev;

	sfp->ioc = ioc;

	sfp->trcmod = trcmod;



	sfp->cbfn = NULL;

	sfp->cbarg = NULL;

	sfp->sfpmem = NULL;

	sfp->lock = 0;

	sfp->data_valid = 0;

	sfp->state = BFA_SFP_STATE_INIT;

	sfp->state_query_lock = 0;

	sfp->state_query_cbfn = NULL;

	sfp->state_query_cbarg = NULL;

	sfp->media = NULL;

	sfp->portspeed = BFA_PORT_SPEED_UNKNOWN;

	sfp->is_elb = BFA_FALSE;



	bfa_ioc_mbox_regisr(sfp->ioc, BFI_MC_SFP, bfa_sfp_intr, sfp);

	bfa_q_qe_init(&sfp->ioc_notify);

	bfa_ioc_notify_init(&sfp->ioc_notify, bfa_sfp_notify, sfp);

	list_add_tail(&sfp->ioc_notify.qe, &sfp->ioc->notify_q);

}



/*

 *	Claim Memory for SFP

 */

void

bfa_sfp_memclaim(struct bfa_sfp_s *sfp, u8 *dm_kva, u64 dm_pa)

{

	sfp->dbuf_kva   = dm_kva;

	sfp->dbuf_pa    = dm_pa;

	memset(sfp->dbuf_kva, 0, sizeof(struct sfp_mem_s));



	dm_kva += BFA_ROUNDUP(sizeof(struct sfp_mem_s), BFA_DMA_ALIGN_SZ);

	dm_pa += BFA_ROUNDUP(sizeof(struct sfp_mem_s), BFA_DMA_ALIGN_SZ);

}



/*

 * Show SFP eeprom content

 *

 * @param[in] sfp   - bfa sfp module

 *

 * @param[out] sfpmem - sfp eeprom data

 *

 */

bfa_status_t

bfa_sfp_show(struct bfa_sfp_s *sfp, struct sfp_mem_s *sfpmem,

		bfa_cb_sfp_t cbfn, void *cbarg)

{



	if (!bfa_ioc_is_operational(sfp->ioc)) {

		bfa_trc(sfp, 0);

		return BFA_STATUS_IOC_NON_OP;

	}



	if (sfp->lock) {

		bfa_trc(sfp, 0);

		return BFA_STATUS_DEVBUSY;

	}



	sfp->cbfn = cbfn;

	sfp->cbarg = cbarg;

	sfp->sfpmem = sfpmem;



	bfa_sfp_getdata(sfp, BFI_SFP_MEM_DIAGEXT);

	return BFA_STATUS_OK;

}



/*

 * Return SFP Media type

 *

 * @param[in] sfp   - bfa sfp module

 *

 * @param[out] media - port speed from user

 *

 */

bfa_status_t

bfa_sfp_media(struct bfa_sfp_s *sfp, enum bfa_defs_sfp_media_e *media,

		bfa_cb_sfp_t cbfn, void *cbarg)

{

	if (!bfa_ioc_is_operational(sfp->ioc)) {

		bfa_trc(sfp, 0);

		return BFA_STATUS_IOC_NON_OP;

	}



	sfp->media = media;

	if (sfp->state == BFA_SFP_STATE_INIT) {

		if (sfp->state_query_lock) {

			bfa_trc(sfp, 0);

			return BFA_STATUS_DEVBUSY;

		} else {

			sfp->state_query_cbfn = cbfn;

			sfp->state_query_cbarg = cbarg;

			bfa_sfp_state_query(sfp);

			return BFA_STATUS_SFP_NOT_READY;

		}

	}



	bfa_sfp_media_get(sfp);

	return BFA_STATUS_OK;

}



/*

 * Check if user set port speed is allowed by the SFP

 *

 * @param[in] sfp   - bfa sfp module

 * @param[in] portspeed - port speed from user

 *

 */

bfa_status_t

bfa_sfp_speed(struct bfa_sfp_s *sfp, enum bfa_port_speed portspeed,

		bfa_cb_sfp_t cbfn, void *cbarg)

{

	WARN_ON(portspeed == BFA_PORT_SPEED_UNKNOWN);



	if (!bfa_ioc_is_operational(sfp->ioc))

		return BFA_STATUS_IOC_NON_OP;



	/* For Mezz card, all speed is allowed */

	if (bfa_mfg_is_mezz(sfp->ioc->attr->card_type))

		return BFA_STATUS_OK;



	/* Check SFP state */

	sfp->portspeed = portspeed;

	if (sfp->state == BFA_SFP_STATE_INIT) {

		if (sfp->state_query_lock) {

			bfa_trc(sfp, 0);

			return BFA_STATUS_DEVBUSY;

		} else {

			sfp->state_query_cbfn = cbfn;

			sfp->state_query_cbarg = cbarg;

			bfa_sfp_state_query(sfp);

			return BFA_STATUS_SFP_NOT_READY;

		}

	}



	if (sfp->state == BFA_SFP_STATE_REMOVED ||

	    sfp->state == BFA_SFP_STATE_FAILED) {

		bfa_trc(sfp, sfp->state);

		return BFA_STATUS_NO_SFP_DEV;

	}



	if (sfp->state == BFA_SFP_STATE_INSERTED) {

		bfa_trc(sfp, sfp->state);

		return BFA_STATUS_DEVBUSY;  /* sfp is reading data */

	}



	/* For eloopback, all speed is allowed */

	if (sfp->is_elb)

		return BFA_STATUS_OK;



	return bfa_sfp_speed_valid(sfp, portspeed);

}

drivers/scsi/bfa/bfa_ioc.h

+52 −0
Original line number Diff line number Diff line
@@ -367,6 +367,58 @@ struct bfa_ablk_s { 
};

#define BFA_MEM_ABLK_DMA(__bfa)		(&((__bfa)->modules.ablk.ablk_dma))



/*

 *	SFP module specific

 */

typedef void	(*bfa_cb_sfp_t) (void *cbarg, bfa_status_t status);



struct bfa_sfp_s {

	void	*dev;

	struct bfa_ioc_s	*ioc;

	struct bfa_trc_mod_s	*trcmod;

	struct sfp_mem_s	*sfpmem;

	bfa_cb_sfp_t		cbfn;

	void			*cbarg;

	enum bfi_sfp_mem_e	memtype; /* mem access type   */

	u32			status;

	struct bfa_mbox_cmd_s	mbcmd;

	u8			*dbuf_kva; /* dma buf virtual address */

	u64			dbuf_pa;   /* dma buf physical address */

	struct bfa_ioc_notify_s	ioc_notify;

	enum bfa_defs_sfp_media_e *media;

	enum bfa_port_speed	portspeed;

	bfa_cb_sfp_t		state_query_cbfn;

	void			*state_query_cbarg;

	u8			lock;

	u8			data_valid; /* data in dbuf is valid */

	u8			state;	    /* sfp state  */

	u8			state_query_lock;

	struct bfa_mem_dma_s	sfp_dma;

	u8			is_elb;	    /* eloopback  */

};



#define BFA_SFP_MOD(__bfa)	(&(__bfa)->modules.sfp)

#define BFA_MEM_SFP_DMA(__bfa)	(&(BFA_SFP_MOD(__bfa)->sfp_dma))



u32	bfa_sfp_meminfo(void);



void	bfa_sfp_attach(struct bfa_sfp_s *sfp, struct bfa_ioc_s *ioc,

			void *dev, struct bfa_trc_mod_s *trcmod);



void	bfa_sfp_memclaim(struct bfa_sfp_s *diag, u8 *dm_kva, u64 dm_pa);

void	bfa_sfp_intr(void *bfaarg, struct bfi_mbmsg_s *msg);



bfa_status_t	bfa_sfp_show(struct bfa_sfp_s *sfp, struct sfp_mem_s *sfpmem,

			     bfa_cb_sfp_t cbfn, void *cbarg);



bfa_status_t	bfa_sfp_media(struct bfa_sfp_s *sfp,

			enum bfa_defs_sfp_media_e *media,

			bfa_cb_sfp_t cbfn, void *cbarg);



bfa_status_t	bfa_sfp_speed(struct bfa_sfp_s *sfp,

			enum bfa_port_speed portspeed,

			bfa_cb_sfp_t cbfn, void *cbarg);



#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)

drivers/scsi/bfa/bfa_modules.h

+1 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ struct bfa_modules_s { 
	struct bfa_port_s	port;		/*  Physical port module     */

	struct bfa_ablk_s	ablk;		/*  ASIC block config module */

	struct bfa_cee_s	cee;		/*  CEE Module	*/

	struct bfa_sfp_s	sfp;		/*  SFP module	*/

};



/*