[SCSI] bfa: Add support to read/update the FRU data.

- Add FRU sub-module to support FRU read/write/update.
- Add support to read/write from the temp FRU module.

[jejb: fix checkpatch issues]
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/bfa/bfa_core.c

@@ -165,6 +165,16 @@ bfa_com_phy_attach(struct bfa_s *bfa, bfa_boolean_t mincfg)
 	bfa_phy_memclaim(phy, phy_dma->kva_curp, phy_dma->dma_curp, mincfg);
 }
 
+static void
+bfa_com_fru_attach(struct bfa_s *bfa, bfa_boolean_t mincfg)
+{
+	struct bfa_fru_s	*fru = BFA_FRU(bfa);
+	struct bfa_mem_dma_s	*fru_dma = BFA_MEM_FRU_DMA(bfa);
+
+	bfa_fru_attach(fru, &bfa->ioc, bfa, bfa->trcmod, mincfg);
+	bfa_fru_memclaim(fru, fru_dma->kva_curp, fru_dma->dma_curp, mincfg);
+}
+
 /*
  * BFA IOC FC related definitions
  */
@@ -1752,6 +1762,7 @@ bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
 	struct bfa_mem_dma_s *flash_dma = BFA_MEM_FLASH_DMA(bfa);
 	struct bfa_mem_dma_s *diag_dma = BFA_MEM_DIAG_DMA(bfa);
 	struct bfa_mem_dma_s *phy_dma = BFA_MEM_PHY_DMA(bfa);
+	struct bfa_mem_dma_s *fru_dma = BFA_MEM_FRU_DMA(bfa);
 
 	WARN_ON((cfg == NULL) || (meminfo == NULL));
 
@@ -1776,6 +1787,8 @@ bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
 	bfa_mem_dma_setup(meminfo, diag_dma, bfa_diag_meminfo());
 	bfa_mem_dma_setup(meminfo, phy_dma,
 			  bfa_phy_meminfo(cfg->drvcfg.min_cfg));
+	bfa_mem_dma_setup(meminfo, fru_dma,
+			  bfa_fru_meminfo(cfg->drvcfg.min_cfg));
 }
 
 /*
@@ -1848,6 +1861,7 @@ bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
 	bfa_com_flash_attach(bfa, cfg->drvcfg.min_cfg);
 	bfa_com_diag_attach(bfa);
 	bfa_com_phy_attach(bfa, cfg->drvcfg.min_cfg);
+	bfa_com_fru_attach(bfa, cfg->drvcfg.min_cfg);
 }
 
 /*

drivers/scsi/bfa/bfa_defs.h

@@ -196,6 +196,7 @@ enum bfa_status {
 	BFA_STATUS_DPORT_ENABLED = 235, /* D-port mode is already enabled */
 	BFA_STATUS_DPORT_DISABLED = 236, /* D-port mode is already disabled */
 	BFA_STATUS_CMD_NOTSUPP_MEZZ = 239, /* Cmd not supported for MEZZ card */
+	BFA_STATUS_FRU_NOT_PRESENT = 240, /* fru module not present */
 	BFA_STATUS_DPORT_ERR = 245,	/* D-port mode is enabled */
 	BFA_STATUS_MAX_VAL		/* Unknown error code */
 };

drivers/scsi/bfa/bfa_ioc.h

@@ -701,6 +701,55 @@ void bfa_phy_memclaim(struct bfa_phy_s *phy,
 		u8 *dm_kva, u64 dm_pa, bfa_boolean_t mincfg);
 void bfa_phy_intr(void *phyarg, struct bfi_mbmsg_s *msg);
 
+/*
+ * FRU module specific
+ */
+typedef void (*bfa_cb_fru_t) (void *cbarg, bfa_status_t status);
+
+struct bfa_fru_s {
+	struct bfa_ioc_s *ioc;		/* back pointer to ioc */
+	struct bfa_trc_mod_s *trcmod;	/* trace module */
+	u8		op_busy;	/* operation busy flag */
+	u8		rsv[3];
+	u32		residue;	/* residual length */
+	u32		offset;		/* offset */
+	bfa_status_t	status;		/* status */
+	u8		*dbuf_kva;	/* dma buf virtual address */
+	u64		dbuf_pa;	/* dma buf physical address */
+	struct bfa_reqq_wait_s reqq_wait; /* to wait for room in reqq */
+	bfa_cb_fru_t	cbfn;		/* user callback function */
+	void		*cbarg;		/* user callback arg */
+	u8		*ubuf;		/* user supplied buffer */
+	struct bfa_cb_qe_s	hcb_qe;	/* comp: BFA callback qelem */
+	u32		addr_off;	/* fru address offset */
+	struct bfa_mbox_cmd_s mb;	/* mailbox */
+	struct bfa_ioc_notify_s ioc_notify; /* ioc event notify */
+	struct bfa_mem_dma_s	fru_dma;
+};
+
+#define BFA_FRU(__bfa)	(&(__bfa)->modules.fru)
+#define BFA_MEM_FRU_DMA(__bfa)	(&(BFA_FRU(__bfa)->fru_dma))
+
+bfa_status_t bfa_fruvpd_update(struct bfa_fru_s *fru,
+			void *buf, u32 len, u32 offset,
+			bfa_cb_fru_t cbfn, void *cbarg);
+bfa_status_t bfa_fruvpd_read(struct bfa_fru_s *fru,
+			void *buf, u32 len, u32 offset,
+			bfa_cb_fru_t cbfn, void *cbarg);
+bfa_status_t bfa_fruvpd_get_max_size(struct bfa_fru_s *fru, u32 *max_size);
+bfa_status_t bfa_tfru_write(struct bfa_fru_s *fru,
+			void *buf, u32 len, u32 offset,
+			bfa_cb_fru_t cbfn, void *cbarg);
+bfa_status_t bfa_tfru_read(struct bfa_fru_s *fru,
+			void *buf, u32 len, u32 offset,
+			bfa_cb_fru_t cbfn, void *cbarg);
+u32	bfa_fru_meminfo(bfa_boolean_t mincfg);
+void bfa_fru_attach(struct bfa_fru_s *fru, struct bfa_ioc_s *ioc,
+		void *dev, struct bfa_trc_mod_s *trcmod, bfa_boolean_t mincfg);
+void bfa_fru_memclaim(struct bfa_fru_s *fru,
+		u8 *dm_kva, u64 dm_pa, bfa_boolean_t mincfg);
+void bfa_fru_intr(void *fruarg, struct bfi_mbmsg_s *msg);
+
 /*
  * Driver Config( dconf) specific
  */

drivers/scsi/bfa/bfa_modules.h

@@ -45,6 +45,7 @@ struct bfa_modules_s {
 	struct bfa_diag_s	diag_mod;	/*  diagnostics module	*/
 	struct bfa_phy_s	phy;		/*  phy module		*/
 	struct bfa_dconf_mod_s	dconf_mod;	/*  DCONF common module	*/
+	struct bfa_fru_s	fru;		/*  fru module		*/
 };
 
 /*

drivers/scsi/bfa/bfad_bsg.c

@@ -107,9 +107,10 @@ bfad_iocmd_ioc_get_info(struct bfad_s *bfad, void *cmd)
 
 	/* set adapter hw path */
 	strcpy(iocmd->adapter_hwpath, bfad->pci_name);
-	i = strlen(iocmd->adapter_hwpath) - 1;
-	while (iocmd->adapter_hwpath[i] != '.')
-		i--;
+	for (i = 0; iocmd->adapter_hwpath[i] != ':' && i < BFA_STRING_32; i++)
+		;
+	for (; iocmd->adapter_hwpath[++i] != ':' && i < BFA_STRING_32; )
+		;
 	iocmd->adapter_hwpath[i] = '\0';
 	iocmd->status = BFA_STATUS_OK;
 	return 0;
@@ -2583,6 +2584,109 @@ bfad_iocmd_fcpim_throttle_set(struct bfad_s *bfad, void *cmd)
 	return 0;
 }
 
+int
+bfad_iocmd_tfru_read(struct bfad_s *bfad, void *cmd)
+{
+	struct bfa_bsg_tfru_s *iocmd =
+			(struct bfa_bsg_tfru_s *)cmd;
+	struct bfad_hal_comp fcomp;
+	unsigned long flags = 0;
+
+	init_completion(&fcomp.comp);
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	iocmd->status = bfa_tfru_read(BFA_FRU(&bfad->bfa),
+				&iocmd->data, iocmd->len, iocmd->offset,
+				bfad_hcb_comp, &fcomp);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+	if (iocmd->status == BFA_STATUS_OK) {
+		wait_for_completion(&fcomp.comp);
+		iocmd->status = fcomp.status;
+	}
+
+	return 0;
+}
+
+int
+bfad_iocmd_tfru_write(struct bfad_s *bfad, void *cmd)
+{
+	struct bfa_bsg_tfru_s *iocmd =
+			(struct bfa_bsg_tfru_s *)cmd;
+	struct bfad_hal_comp fcomp;
+	unsigned long flags = 0;
+
+	init_completion(&fcomp.comp);
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	iocmd->status = bfa_tfru_write(BFA_FRU(&bfad->bfa),
+				&iocmd->data, iocmd->len, iocmd->offset,
+				bfad_hcb_comp, &fcomp);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+	if (iocmd->status == BFA_STATUS_OK) {
+		wait_for_completion(&fcomp.comp);
+		iocmd->status = fcomp.status;
+	}
+
+	return 0;
+}
+
+int
+bfad_iocmd_fruvpd_read(struct bfad_s *bfad, void *cmd)
+{
+	struct bfa_bsg_fruvpd_s *iocmd =
+			(struct bfa_bsg_fruvpd_s *)cmd;
+	struct bfad_hal_comp fcomp;
+	unsigned long flags = 0;
+
+	init_completion(&fcomp.comp);
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	iocmd->status = bfa_fruvpd_read(BFA_FRU(&bfad->bfa),
+				&iocmd->data, iocmd->len, iocmd->offset,
+				bfad_hcb_comp, &fcomp);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+	if (iocmd->status == BFA_STATUS_OK) {
+		wait_for_completion(&fcomp.comp);
+		iocmd->status = fcomp.status;
+	}
+
+	return 0;
+}
+
+int
+bfad_iocmd_fruvpd_update(struct bfad_s *bfad, void *cmd)
+{
+	struct bfa_bsg_fruvpd_s *iocmd =
+			(struct bfa_bsg_fruvpd_s *)cmd;
+	struct bfad_hal_comp fcomp;
+	unsigned long flags = 0;
+
+	init_completion(&fcomp.comp);
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	iocmd->status = bfa_fruvpd_update(BFA_FRU(&bfad->bfa),
+				&iocmd->data, iocmd->len, iocmd->offset,
+				bfad_hcb_comp, &fcomp);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+	if (iocmd->status == BFA_STATUS_OK) {
+		wait_for_completion(&fcomp.comp);
+		iocmd->status = fcomp.status;
+	}
+
+	return 0;
+}
+
+int
+bfad_iocmd_fruvpd_get_max_size(struct bfad_s *bfad, void *cmd)
+{
+	struct bfa_bsg_fruvpd_max_size_s *iocmd =
+			(struct bfa_bsg_fruvpd_max_size_s *)cmd;
+	unsigned long flags = 0;
+
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	iocmd->status = bfa_fruvpd_get_max_size(BFA_FRU(&bfad->bfa),
+						&iocmd->max_size);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+	return 0;
+}
+
 static int
 bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd,
 		unsigned int payload_len)
@@ -2923,6 +3027,23 @@ bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd,
 	case IOCMD_FCPIM_THROTTLE_SET:
 		rc = bfad_iocmd_fcpim_throttle_set(bfad, iocmd);
 		break;
+	/* TFRU */
+	case IOCMD_TFRU_READ:
+		rc = bfad_iocmd_tfru_read(bfad, iocmd);
+		break;
+	case IOCMD_TFRU_WRITE:
+		rc = bfad_iocmd_tfru_write(bfad, iocmd);
+		break;
+	/* FRU */
+	case IOCMD_FRUVPD_READ:
+		rc = bfad_iocmd_fruvpd_read(bfad, iocmd);
+		break;
+	case IOCMD_FRUVPD_UPDATE:
+		rc = bfad_iocmd_fruvpd_update(bfad, iocmd);
+		break;
+	case IOCMD_FRUVPD_GET_MAX_SIZE:
+		rc = bfad_iocmd_fruvpd_get_max_size(bfad, iocmd);
+		break;
 	default:
 		rc = -EINVAL;
 		break;

drivers/scsi/bfa/bfad_bsg.h

@@ -146,7 +146,12 @@ enum {
 	IOCMD_DIAG_DPORT_GET_STATE,
 	IOCMD_QOS_SET_BW,
 	IOCMD_FCPIM_THROTTLE_QUERY,
-	IOCMD_FCPIM_THROTTLE_SET
+	IOCMD_FCPIM_THROTTLE_SET,
+	IOCMD_TFRU_READ,
+	IOCMD_TFRU_WRITE,
+	IOCMD_FRUVPD_READ,
+	IOCMD_FRUVPD_UPDATE,
+	IOCMD_FRUVPD_GET_MAX_SIZE,
 };
 
 struct bfa_bsg_gen_s {
@@ -750,6 +755,34 @@ struct bfa_bsg_fcpim_throttle_s {
 	struct bfa_defs_fcpim_throttle_s throttle;
 };
 
+#define BFA_TFRU_DATA_SIZE		64
+#define BFA_MAX_FRUVPD_TRANSFER_SIZE	0x1000
+
+struct bfa_bsg_tfru_s {
+	bfa_status_t	status;
+	u16		bfad_num;
+	u16		rsvd;
+	u32		offset;
+	u32		len;
+	u8		data[BFA_TFRU_DATA_SIZE];
+};
+
+struct bfa_bsg_fruvpd_s {
+	bfa_status_t	status;
+	u16		bfad_num;
+	u16		rsvd;
+	u32		offset;
+	u32		len;
+	u8		data[BFA_MAX_FRUVPD_TRANSFER_SIZE];
+};
+
+struct bfa_bsg_fruvpd_max_size_s {
+	bfa_status_t	status;
+	u16		bfad_num;
+	u16		rsvd;
+	u32		max_size;
+};
+
 struct bfa_bsg_fcpt_s {
 	bfa_status_t    status;
 	u16		vf_id;

drivers/scsi/bfa/bfi.h

@@ -210,7 +210,8 @@ enum bfi_mclass {
 	BFI_MC_PORT		= 21,	/*  Physical port		    */
 	BFI_MC_SFP		= 22,	/*  SFP module	*/
 	BFI_MC_PHY		= 25,   /*  External PHY message class	*/
-	BFI_MC_MAX		= 32
+	BFI_MC_FRU		= 34,
+	BFI_MC_MAX		= 35
 };
 
 #define BFI_IOC_MAX_CQS		4
@@ -1170,6 +1171,50 @@ struct bfi_phy_write_rsp_s {
 	u32			length;
 };
 
+enum bfi_fru_h2i_msgs {
+	BFI_FRUVPD_H2I_WRITE_REQ = 1,
+	BFI_FRUVPD_H2I_READ_REQ = 2,
+	BFI_TFRU_H2I_WRITE_REQ = 3,
+	BFI_TFRU_H2I_READ_REQ = 4,
+};
+
+enum bfi_fru_i2h_msgs {
+	BFI_FRUVPD_I2H_WRITE_RSP = BFA_I2HM(1),
+	BFI_FRUVPD_I2H_READ_RSP = BFA_I2HM(2),
+	BFI_TFRU_I2H_WRITE_RSP = BFA_I2HM(3),
+	BFI_TFRU_I2H_READ_RSP = BFA_I2HM(4),
+};
+
+/*
+ * FRU write request
+ */
+struct bfi_fru_write_req_s {
+	struct bfi_mhdr_s	mh;	/* Common msg header */
+	u8			last;
+	u8			rsv[3];
+	u32			offset;
+	u32			length;
+	struct bfi_alen_s	alen;
+};
+
+/*
+ * FRU read request
+ */
+struct bfi_fru_read_req_s {
+	struct bfi_mhdr_s	mh;	/* Common msg header */
+	u32			offset;
+	u32			length;
+	struct bfi_alen_s	alen;
+};
+
+/*
+ * FRU response
+ */
+struct bfi_fru_rsp_s {
+	struct bfi_mhdr_s	mh;	/* Common msg header */
+	u32			status;
+	u32			length;
+};
 #pragma pack()
 
 #endif /* __BFI_H__ */

drivers/scsi/bfa/bfi_ms.h

@@ -426,6 +426,7 @@ struct bfi_lps_login_req_s {
 	u8		auth_en;
 	u8		lps_role;
 	u8		bb_scn;
+	u32		vvl_flag;
 };
 
 struct bfi_lps_login_rsp_s {