bna: Added flash sub-module and ethtool eeprom entry points.

Change details:
	- The patch adds flash sub-module to the bna driver.
	- Added ethtool set_eeprom() and get_eeprom() entry points to
	  support flash partition read/write operations.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/brocade/bna/bfa_defs.h

@@ -219,41 +219,39 @@ enum {
  * All numerical fields are in big-endian format.
  */
 struct bfa_mfg_block {
-	u8		version;	/*!< manufacturing block version */
-	u8		mfg_sig[3];	/*!< characters 'M', 'F', 'G' */
-	u16	mfgsize;	/*!< mfg block size */
-	u16	u16_chksum;	/*!< old u16 checksum */
-	char		brcd_serialnum[STRSZ(BFA_MFG_SERIALNUM_SIZE)];
-	char		brcd_partnum[STRSZ(BFA_MFG_PARTNUM_SIZE)];
-	u8		mfg_day;	/*!< manufacturing day */
-	u8		mfg_month;	/*!< manufacturing month */
-	u16	mfg_year;	/*!< manufacturing year */
-	u64		mfg_wwn;	/*!< wwn base for this adapter */
-	u8		num_wwn;	/*!< number of wwns assigned */
-	u8		mfg_speeds;	/*!< speeds allowed for this adapter */
-	u8		rsv[2];
-	char		supplier_id[STRSZ(BFA_MFG_SUPPLIER_ID_SIZE)];
-	char		supplier_partnum[STRSZ(BFA_MFG_SUPPLIER_PARTNUM_SIZE)];
-	char
-		supplier_serialnum[STRSZ(BFA_MFG_SUPPLIER_SERIALNUM_SIZE)];
-	char
-		supplier_revision[STRSZ(BFA_MFG_SUPPLIER_REVISION_SIZE)];
-	mac_t		mfg_mac;	/*!< mac address */
-	u8		num_mac;	/*!< number of mac addresses */
-	u8		rsv2;
-	u32		card_type;	/*!< card type */
-	char		cap_nic;	/*!< capability nic */
-	char		cap_cna;	/*!< capability cna */
-	char		cap_hba;	/*!< capability hba */
-	char		cap_fc16g;	/*!< capability fc 16g */
-	char		cap_sriov;	/*!< capability sriov */
-	char		cap_mezz;	/*!< capability mezz */
-	u8		rsv3;
-	u8		mfg_nports;	/*!< number of ports */
-	char		media[8];	/*!< xfi/xaui */
-	char		initial_mode[8];/*!< initial mode: hba/cna/nic */
-	u8		rsv4[84];
-	u8		md5_chksum[BFA_MFG_CHKSUM_SIZE]; /*!< md5 checksum */
+	u8	version;	/* manufacturing block version */
+	u8	mfg_sig[3];	/* characters 'M', 'F', 'G' */
+	u16	mfgsize;	/* mfg block size */
+	u16	u16_chksum;	/* old u16 checksum */
+	char	brcd_serialnum[STRSZ(BFA_MFG_SERIALNUM_SIZE)];
+	char	brcd_partnum[STRSZ(BFA_MFG_PARTNUM_SIZE)];
+	u8	mfg_day;	/* manufacturing day */
+	u8	mfg_month;	/* manufacturing month */
+	u16	mfg_year;	/* manufacturing year */
+	u64	mfg_wwn;	/* wwn base for this adapter */
+	u8	num_wwn;	/* number of wwns assigned */
+	u8	mfg_speeds;	/* speeds allowed for this adapter */
+	u8	rsv[2];
+	char	supplier_id[STRSZ(BFA_MFG_SUPPLIER_ID_SIZE)];
+	char	supplier_partnum[STRSZ(BFA_MFG_SUPPLIER_PARTNUM_SIZE)];
+	char	supplier_serialnum[STRSZ(BFA_MFG_SUPPLIER_SERIALNUM_SIZE)];
+	char	supplier_revision[STRSZ(BFA_MFG_SUPPLIER_REVISION_SIZE)];
+	mac_t	mfg_mac;	/* base mac address */
+	u8	num_mac;	/* number of mac addresses */
+	u8	rsv2;
+	u32	card_type;	/* card type          */
+	char	cap_nic;	/* capability nic     */
+	char	cap_cna;	/* capability cna     */
+	char	cap_hba;	/* capability hba     */
+	char	cap_fc16g;	/* capability fc 16g      */
+	char	cap_sriov;	/* capability sriov       */
+	char	cap_mezz;	/* capability mezz        */
+	u8	rsv3;
+	u8	mfg_nports;	/* number of ports        */
+	char	media[8];	/* xfi/xaui           */
+	char	initial_mode[8]; /* initial mode: hba/cna/nic */
+	u8	rsv4[84];
+	u8	md5_chksum[BFA_MFG_CHKSUM_SIZE]; /* md5 checksum */
 };
 
 #pragma pack()
@@ -293,4 +291,34 @@ enum bfa_mode {
 	BFA_MODE_NIC		= 3
 };
 
+/*
+ *	Flash module specific
+ */
+#define BFA_FLASH_PART_ENTRY_SIZE	32	/* partition entry size */
+#define BFA_FLASH_PART_MAX		32	/* maximal # of partitions */
+#define BFA_TOTAL_FLASH_SIZE		0x400000
+#define BFA_FLASH_PART_MFG		7
+
+/*
+ * flash partition attributes
+ */
+struct bfa_flash_part_attr {
+	u32	part_type;	/* partition type */
+	u32	part_instance;	/* partition instance */
+	u32	part_off;	/* partition offset */
+	u32	part_size;	/* partition size */
+	u32	part_len;	/* partition content length */
+	u32	part_status;	/* partition status */
+	char	rsv[BFA_FLASH_PART_ENTRY_SIZE - 24];
+};
+
+/*
+ * flash attributes
+ */
+struct bfa_flash_attr {
+	u32	status;	/* flash overall status */
+	u32	npart;  /* num of partitions */
+	struct bfa_flash_part_attr part[BFA_FLASH_PART_MAX];
+};
+
 #endif /* __BFA_DEFS_H__ */

drivers/net/ethernet/brocade/bna/bfa_ioc.c

@@ -2171,6 +2171,15 @@ bfa_nw_ioc_is_disabled(struct bfa_ioc *ioc)
 		bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabled);
 }
 
+/**
+ * return true if IOC is operational
+ */
+bool
+bfa_nw_ioc_is_operational(struct bfa_ioc *ioc)
+{
+	return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_op);
+}
+
 /**
  * Add to IOC heartbeat failure notification queue. To be used by common
  * modules such as cee, port, diag.
@@ -2471,3 +2480,366 @@ bfa_ioc_poll_fwinit(struct bfa_ioc *ioc)
 			msecs_to_jiffies(BFA_IOC_POLL_TOV));
 	}
 }
+
+/*
+ *	Flash module specific
+ */
+
+/*
+ * FLASH DMA buffer should be big enough to hold both MFG block and
+ * asic block(64k) at the same time and also should be 2k aligned to
+ * avoid write segement to cross sector boundary.
+ */
+#define BFA_FLASH_SEG_SZ	2048
+#define BFA_FLASH_DMA_BUF_SZ	\
+	roundup(0x010000 + sizeof(struct bfa_mfg_block), BFA_FLASH_SEG_SZ)
+
+static void
+bfa_flash_cb(struct bfa_flash *flash)
+{
+	flash->op_busy = 0;
+	if (flash->cbfn)
+		flash->cbfn(flash->cbarg, flash->status);
+}
+
+static void
+bfa_flash_notify(void *cbarg, enum bfa_ioc_event event)
+{
+	struct bfa_flash *flash = cbarg;
+
+	switch (event) {
+	case BFA_IOC_E_DISABLED:
+	case BFA_IOC_E_FAILED:
+		if (flash->op_busy) {
+			flash->status = BFA_STATUS_IOC_FAILURE;
+			flash->cbfn(flash->cbarg, flash->status);
+			flash->op_busy = 0;
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+/*
+ * Send flash write request.
+ *
+ * @param[in] cbarg - callback argument
+ */
+static void
+bfa_flash_write_send(struct bfa_flash *flash)
+{
+	struct bfi_flash_write_req *msg =
+			(struct bfi_flash_write_req *) flash->mb.msg;
+	u32	len;
+
+	msg->type = be32_to_cpu(flash->type);
+	msg->instance = flash->instance;
+	msg->offset = be32_to_cpu(flash->addr_off + flash->offset);
+	len = (flash->residue < BFA_FLASH_DMA_BUF_SZ) ?
+	       flash->residue : BFA_FLASH_DMA_BUF_SZ;
+	msg->length = be32_to_cpu(len);
+
+	/* indicate if it's the last msg of the whole write operation */
+	msg->last = (len == flash->residue) ? 1 : 0;
+
+	bfi_h2i_set(msg->mh, BFI_MC_FLASH, BFI_FLASH_H2I_WRITE_REQ,
+		    bfa_ioc_portid(flash->ioc));
+	bfa_alen_set(&msg->alen, len, flash->dbuf_pa);
+	memcpy(flash->dbuf_kva, flash->ubuf + flash->offset, len);
+	bfa_nw_ioc_mbox_queue(flash->ioc, &flash->mb, NULL, NULL);
+
+	flash->residue -= len;
+	flash->offset += len;
+}
+
+/*
+ * Send flash read request.
+ *
+ * @param[in] cbarg - callback argument
+ */
+static void
+bfa_flash_read_send(void *cbarg)
+{
+	struct bfa_flash *flash = cbarg;
+	struct bfi_flash_read_req *msg =
+			(struct bfi_flash_read_req *) flash->mb.msg;
+	u32	len;
+
+	msg->type = be32_to_cpu(flash->type);
+	msg->instance = flash->instance;
+	msg->offset = be32_to_cpu(flash->addr_off + flash->offset);
+	len = (flash->residue < BFA_FLASH_DMA_BUF_SZ) ?
+	       flash->residue : BFA_FLASH_DMA_BUF_SZ;
+	msg->length = be32_to_cpu(len);
+	bfi_h2i_set(msg->mh, BFI_MC_FLASH, BFI_FLASH_H2I_READ_REQ,
+		    bfa_ioc_portid(flash->ioc));
+	bfa_alen_set(&msg->alen, len, flash->dbuf_pa);
+	bfa_nw_ioc_mbox_queue(flash->ioc, &flash->mb, NULL, NULL);
+}
+
+/*
+ * Process flash response messages upon receiving interrupts.
+ *
+ * @param[in] flasharg - flash structure
+ * @param[in] msg - message structure
+ */
+static void
+bfa_flash_intr(void *flasharg, struct bfi_mbmsg *msg)
+{
+	struct bfa_flash *flash = flasharg;
+	u32	status;
+
+	union {
+		struct bfi_flash_query_rsp *query;
+		struct bfi_flash_write_rsp *write;
+		struct bfi_flash_read_rsp *read;
+		struct bfi_mbmsg   *msg;
+	} m;
+
+	m.msg = msg;
+
+	/* receiving response after ioc failure */
+	if (!flash->op_busy && msg->mh.msg_id != BFI_FLASH_I2H_EVENT)
+		return;
+
+	switch (msg->mh.msg_id) {
+	case BFI_FLASH_I2H_QUERY_RSP:
+		status = be32_to_cpu(m.query->status);
+		if (status == BFA_STATUS_OK) {
+			u32	i;
+			struct bfa_flash_attr *attr, *f;
+
+			attr = (struct bfa_flash_attr *) flash->ubuf;
+			f = (struct bfa_flash_attr *) flash->dbuf_kva;
+			attr->status = be32_to_cpu(f->status);
+			attr->npart = be32_to_cpu(f->npart);
+			for (i = 0; i < attr->npart; i++) {
+				attr->part[i].part_type =
+					be32_to_cpu(f->part[i].part_type);
+				attr->part[i].part_instance =
+					be32_to_cpu(f->part[i].part_instance);
+				attr->part[i].part_off =
+					be32_to_cpu(f->part[i].part_off);
+				attr->part[i].part_size =
+					be32_to_cpu(f->part[i].part_size);
+				attr->part[i].part_len =
+					be32_to_cpu(f->part[i].part_len);
+				attr->part[i].part_status =
+					be32_to_cpu(f->part[i].part_status);
+			}
+		}
+		flash->status = status;
+		bfa_flash_cb(flash);
+		break;
+	case BFI_FLASH_I2H_WRITE_RSP:
+		status = be32_to_cpu(m.write->status);
+		if (status != BFA_STATUS_OK || flash->residue == 0) {
+			flash->status = status;
+			bfa_flash_cb(flash);
+		} else
+			bfa_flash_write_send(flash);
+		break;
+	case BFI_FLASH_I2H_READ_RSP:
+		status = be32_to_cpu(m.read->status);
+		if (status != BFA_STATUS_OK) {
+			flash->status = status;
+			bfa_flash_cb(flash);
+		} else {
+			u32 len = be32_to_cpu(m.read->length);
+			memcpy(flash->ubuf + flash->offset,
+			       flash->dbuf_kva, len);
+			flash->residue -= len;
+			flash->offset += len;
+			if (flash->residue == 0) {
+				flash->status = status;
+				bfa_flash_cb(flash);
+			} else
+				bfa_flash_read_send(flash);
+		}
+		break;
+	case BFI_FLASH_I2H_BOOT_VER_RSP:
+	case BFI_FLASH_I2H_EVENT:
+		break;
+	default:
+		WARN_ON(1);
+	}
+}
+
+/*
+ * Flash memory info API.
+ */
+u32
+bfa_nw_flash_meminfo(void)
+{
+	return roundup(BFA_FLASH_DMA_BUF_SZ, BFA_DMA_ALIGN_SZ);
+}
+
+/*
+ * Flash attach API.
+ *
+ * @param[in] flash - flash structure
+ * @param[in] ioc  - ioc structure
+ * @param[in] dev  - device structure
+ */
+void
+bfa_nw_flash_attach(struct bfa_flash *flash, struct bfa_ioc *ioc, void *dev)
+{
+	flash->ioc = ioc;
+	flash->cbfn = NULL;
+	flash->cbarg = NULL;
+	flash->op_busy = 0;
+
+	bfa_nw_ioc_mbox_regisr(flash->ioc, BFI_MC_FLASH, bfa_flash_intr, flash);
+	bfa_q_qe_init(&flash->ioc_notify);
+	bfa_ioc_notify_init(&flash->ioc_notify, bfa_flash_notify, flash);
+	list_add_tail(&flash->ioc_notify.qe, &flash->ioc->notify_q);
+}
+
+/*
+ * Claim memory for flash
+ *
+ * @param[in] flash - flash structure
+ * @param[in] dm_kva - pointer to virtual memory address
+ * @param[in] dm_pa - physical memory address
+ */
+void
+bfa_nw_flash_memclaim(struct bfa_flash *flash, u8 *dm_kva, u64 dm_pa)
+{
+	flash->dbuf_kva = dm_kva;
+	flash->dbuf_pa = dm_pa;
+	memset(flash->dbuf_kva, 0, BFA_FLASH_DMA_BUF_SZ);
+	dm_kva += roundup(BFA_FLASH_DMA_BUF_SZ, BFA_DMA_ALIGN_SZ);
+	dm_pa += roundup(BFA_FLASH_DMA_BUF_SZ, BFA_DMA_ALIGN_SZ);
+}
+
+/*
+ * Get flash attribute.
+ *
+ * @param[in] flash - flash structure
+ * @param[in] attr - flash attribute structure
+ * @param[in] cbfn - callback function
+ * @param[in] cbarg - callback argument
+ *
+ * Return status.
+ */
+enum bfa_status
+bfa_nw_flash_get_attr(struct bfa_flash *flash, struct bfa_flash_attr *attr,
+		      bfa_cb_flash cbfn, void *cbarg)
+{
+	struct bfi_flash_query_req *msg =
+			(struct bfi_flash_query_req *) flash->mb.msg;
+
+	if (!bfa_nw_ioc_is_operational(flash->ioc))
+		return BFA_STATUS_IOC_NON_OP;
+
+	if (flash->op_busy)
+		return BFA_STATUS_DEVBUSY;
+
+	flash->op_busy = 1;
+	flash->cbfn = cbfn;
+	flash->cbarg = cbarg;
+	flash->ubuf = (u8 *) attr;
+
+	bfi_h2i_set(msg->mh, BFI_MC_FLASH, BFI_FLASH_H2I_QUERY_REQ,
+		    bfa_ioc_portid(flash->ioc));
+	bfa_alen_set(&msg->alen, sizeof(struct bfa_flash_attr), flash->dbuf_pa);
+	bfa_nw_ioc_mbox_queue(flash->ioc, &flash->mb, NULL, NULL);
+
+	return BFA_STATUS_OK;
+}
+
+/*
+ * Update flash partition.
+ *
+ * @param[in] flash - flash structure
+ * @param[in] type - flash partition type
+ * @param[in] instance - flash partition instance
+ * @param[in] buf - update data buffer
+ * @param[in] len - data buffer length
+ * @param[in] offset - offset relative to the partition starting address
+ * @param[in] cbfn - callback function
+ * @param[in] cbarg - callback argument
+ *
+ * Return status.
+ */
+enum bfa_status
+bfa_nw_flash_update_part(struct bfa_flash *flash, u32 type, u8 instance,
+			 void *buf, u32 len, u32 offset,
+			 bfa_cb_flash cbfn, void *cbarg)
+{
+	if (!bfa_nw_ioc_is_operational(flash->ioc))
+		return BFA_STATUS_IOC_NON_OP;
+
+	/*
+	 * 'len' must be in word (4-byte) boundary
+	 */
+	if (!len || (len & 0x03))
+		return BFA_STATUS_FLASH_BAD_LEN;
+
+	if (type == BFA_FLASH_PART_MFG)
+		return BFA_STATUS_EINVAL;
+
+	if (flash->op_busy)
+		return BFA_STATUS_DEVBUSY;
+
+	flash->op_busy = 1;
+	flash->cbfn = cbfn;
+	flash->cbarg = cbarg;
+	flash->type = type;
+	flash->instance = instance;
+	flash->residue = len;
+	flash->offset = 0;
+	flash->addr_off = offset;
+	flash->ubuf = buf;
+
+	bfa_flash_write_send(flash);
+
+	return BFA_STATUS_OK;
+}
+
+/*
+ * Read flash partition.
+ *
+ * @param[in] flash - flash structure
+ * @param[in] type - flash partition type
+ * @param[in] instance - flash partition instance
+ * @param[in] buf - read data buffer
+ * @param[in] len - data buffer length
+ * @param[in] offset - offset relative to the partition starting address
+ * @param[in] cbfn - callback function
+ * @param[in] cbarg - callback argument
+ *
+ * Return status.
+ */
+enum bfa_status
+bfa_nw_flash_read_part(struct bfa_flash *flash, u32 type, u8 instance,
+		       void *buf, u32 len, u32 offset,
+		       bfa_cb_flash cbfn, void *cbarg)
+{
+	if (!bfa_nw_ioc_is_operational(flash->ioc))
+		return BFA_STATUS_IOC_NON_OP;
+
+	/*
+	 * 'len' must be in word (4-byte) boundary
+	 */
+	if (!len || (len & 0x03))
+		return BFA_STATUS_FLASH_BAD_LEN;
+
+	if (flash->op_busy)
+		return BFA_STATUS_DEVBUSY;
+
+	flash->op_busy = 1;
+	flash->cbfn = cbfn;
+	flash->cbarg = cbarg;
+	flash->type = type;
+	flash->instance = instance;
+	flash->residue = len;
+	flash->offset = 0;
+	flash->addr_off = offset;
+	flash->ubuf = buf;
+
+	bfa_flash_read_send(flash);
+
+	return BFA_STATUS_OK;
+}

drivers/net/ethernet/brocade/bna/bfa_ioc.h

@@ -68,6 +68,16 @@ __bfa_dma_be_addr_set(union bfi_addr_u *dma_addr, u64 pa)
 	dma_addr->a32.addr_hi = (u32) htonl(upper_32_bits(pa));
 }
 
+#define bfa_alen_set(__alen, __len, __pa)	\
+	__bfa_alen_set(__alen, __len, (u64)__pa)
+
+static inline void
+__bfa_alen_set(struct bfi_alen *alen, u32 len, u64 pa)
+{
+	alen->al_len = cpu_to_be32(len);
+	bfa_dma_be_addr_set(alen->al_addr, pa);
+}
+
 struct bfa_ioc_regs {
 	void __iomem *hfn_mbox_cmd;
 	void __iomem *hfn_mbox;
@@ -322,4 +332,42 @@ void bfa_nw_iocpf_sem_timeout(void *ioc);
 u32 *bfa_cb_image_get_chunk(enum bfi_asic_gen asic_gen, u32 off);
 u32 bfa_cb_image_get_size(enum bfi_asic_gen asic_gen);
 
+/*
+ *	Flash module specific
+ */
+typedef void	(*bfa_cb_flash) (void *cbarg, enum bfa_status status);
+
+struct bfa_flash {
+	struct bfa_ioc *ioc;		/* back pointer to ioc */
+	u32		type;		/* partition type */
+	u8		instance;	/* partition instance */
+	u8		rsv[3];
+	u32		op_busy;	/*  operation busy flag */
+	u32		residue;	/*  residual length */
+	u32		offset;		/*  offset */
+	enum bfa_status	status;		/*  status */
+	u8		*dbuf_kva;	/*  dma buf virtual address */
+	u64		dbuf_pa;	/*  dma buf physical address */
+	bfa_cb_flash	cbfn;		/*  user callback function */
+	void		*cbarg;		/*  user callback arg */
+	u8		*ubuf;		/*  user supplied buffer */
+	u32		addr_off;	/*  partition address offset */
+	struct bfa_mbox_cmd mb;		/*  mailbox */
+	struct bfa_ioc_notify ioc_notify; /*  ioc event notify */
+};
+
+enum bfa_status bfa_nw_flash_get_attr(struct bfa_flash *flash,
+			struct bfa_flash_attr *attr,
+			bfa_cb_flash cbfn, void *cbarg);
+enum bfa_status bfa_nw_flash_update_part(struct bfa_flash *flash,
+			u32 type, u8 instance, void *buf, u32 len, u32 offset,
+			bfa_cb_flash cbfn, void *cbarg);
+enum bfa_status bfa_nw_flash_read_part(struct bfa_flash *flash,
+			u32 type, u8 instance, void *buf, u32 len, u32 offset,
+			bfa_cb_flash cbfn, void *cbarg);
+u32	bfa_nw_flash_meminfo(void);
+void	bfa_nw_flash_attach(struct bfa_flash *flash,
+			    struct bfa_ioc *ioc, void *dev);
+void	bfa_nw_flash_memclaim(struct bfa_flash *flash, u8 *dm_kva, u64 dm_pa);
+
 #endif /* __BFA_IOC_H__ */

drivers/net/ethernet/brocade/bna/bfi.h

@@ -83,6 +83,14 @@ union bfi_addr_u {
 	} a32;
 };
 
+/**
+ * Generic DMA addr-len pair.
+ */
+struct bfi_alen {
+	union bfi_addr_u	al_addr;	/* DMA addr of buffer	*/
+	u32			al_len;		/* length of buffer */
+};
+
 /*
  * Large Message structure - 128 Bytes size Msgs
  */
@@ -476,6 +484,93 @@ struct bfi_msgq_i2h_cmdq_copy_req {
 	u16     len;
 };
 
+/*
+ *      FLASH module specific
+ */
+enum bfi_flash_h2i_msgs {
+	BFI_FLASH_H2I_QUERY_REQ = 1,
+	BFI_FLASH_H2I_ERASE_REQ = 2,
+	BFI_FLASH_H2I_WRITE_REQ = 3,
+	BFI_FLASH_H2I_READ_REQ = 4,
+	BFI_FLASH_H2I_BOOT_VER_REQ = 5,
+};
+
+enum bfi_flash_i2h_msgs {
+	BFI_FLASH_I2H_QUERY_RSP = BFA_I2HM(1),
+	BFI_FLASH_I2H_ERASE_RSP = BFA_I2HM(2),
+	BFI_FLASH_I2H_WRITE_RSP = BFA_I2HM(3),
+	BFI_FLASH_I2H_READ_RSP = BFA_I2HM(4),
+	BFI_FLASH_I2H_BOOT_VER_RSP = BFA_I2HM(5),
+	BFI_FLASH_I2H_EVENT = BFA_I2HM(127),
+};
+
+/*
+ * Flash query request
+ */
+struct bfi_flash_query_req {
+	struct bfi_mhdr mh;   /* Common msg header */
+	struct bfi_alen alen;
+};
+
+/*
+ * Flash write request
+ */
+struct bfi_flash_write_req {
+	struct bfi_mhdr mh;	/* Common msg header */
+	struct bfi_alen alen;
+	u32	type;   /* partition type */
+	u8	instance; /* partition instance */
+	u8	last;
+	u8	rsv[2];
+	u32	offset;
+	u32	length;
+};
+
+/*
+ * Flash read request
+ */
+struct bfi_flash_read_req {
+	struct bfi_mhdr mh;	/* Common msg header */
+	u32	type;		/* partition type */
+	u8	instance;	/* partition instance */
+	u8	rsv[3];
+	u32	offset;
+	u32	length;
+	struct bfi_alen alen;
+};
+
+/*
+ * Flash query response
+ */
+struct bfi_flash_query_rsp {
+	struct bfi_mhdr mh;	/* Common msg header */
+	u32	status;
+};
+
+/*
+ * Flash read response
+ */
+struct bfi_flash_read_rsp {
+	struct bfi_mhdr mh;	/* Common msg header */
+	u32	type;		/* partition type */
+	u8	instance;	/* partition instance */
+	u8	rsv[3];
+	u32	status;
+	u32	length;
+};
+
+/*
+ * Flash write response
+ */
+struct bfi_flash_write_rsp {
+	struct bfi_mhdr mh;	/* Common msg header */
+	u32	type;		/* partition type */
+	u8	instance;	/* partition instance */
+	u8	rsv[3];
+	u32	status;
+	u32	length;
+};
+
 #pragma pack()
 
 #endif /* __BFI_H__ */

drivers/net/ethernet/brocade/bna/bna_enet.c

@@ -1740,6 +1740,11 @@ bna_ioceth_init(struct bna_ioceth *ioceth, struct bna *bna,
 	kva += bfa_nw_cee_meminfo();
 	dma += bfa_nw_cee_meminfo();
 
+	bfa_nw_flash_attach(&bna->flash, &ioceth->ioc, bna);
+	bfa_nw_flash_memclaim(&bna->flash, kva, dma);
+	kva += bfa_nw_flash_meminfo();
+	dma += bfa_nw_flash_meminfo();
+
 	bfa_msgq_attach(&bna->msgq, &ioceth->ioc);
 	bfa_msgq_memclaim(&bna->msgq, kva, dma);
 	bfa_msgq_regisr(&bna->msgq, BFI_MC_ENET, bna_msgq_rsp_handler, bna);
@@ -1892,7 +1897,8 @@ bna_res_req(struct bna_res_info *res_info)
 	res_info[BNA_RES_MEM_T_COM].res_u.mem_info.num = 1;
 	res_info[BNA_RES_MEM_T_COM].res_u.mem_info.len = ALIGN(
 				(bfa_nw_cee_meminfo() +
-				bfa_msgq_meminfo()), PAGE_SIZE);
+				 bfa_nw_flash_meminfo() +
+				 bfa_msgq_meminfo()), PAGE_SIZE);
 
 	/* DMA memory for retrieving IOC attributes */
 	res_info[BNA_RES_MEM_T_ATTR].res_type = BNA_RES_T_MEM;

drivers/net/ethernet/brocade/bna/bna_types.h

@@ -966,6 +966,7 @@ struct bna {
 
 	struct bna_ioceth ioceth;
 	struct bfa_cee cee;
+	struct bfa_flash flash;
 	struct bfa_msgq msgq;
 
 	struct bna_ethport ethport;

drivers/net/ethernet/brocade/bna/bnad.c

@@ -48,7 +48,9 @@ MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable / Disable auto recovery");
  * Global variables
  */
 u32 bnad_rxqs_per_cq = 2;
-
+u32 bna_id;
+struct mutex bnad_list_mutex;
+LIST_HEAD(bnad_list);
 static const u8 bnad_bcast_addr[] =  {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 
 /*
@@ -75,6 +77,23 @@ do {								\
 
 #define BNAD_TXRX_SYNC_MDELAY	250	/* 250 msecs */
 
+static void
+bnad_add_to_list(struct bnad *bnad)
+{
+	mutex_lock(&bnad_list_mutex);
+	list_add_tail(&bnad->list_entry, &bnad_list);
+	bnad->id = bna_id++;
+	mutex_unlock(&bnad_list_mutex);
+}
+
+static void
+bnad_remove_from_list(struct bnad *bnad)
+{
+	mutex_lock(&bnad_list_mutex);
+	list_del(&bnad->list_entry);
+	mutex_unlock(&bnad_list_mutex);
+}
+
 /*
  * Reinitialize completions in CQ, once Rx is taken down
  */
@@ -1084,6 +1103,16 @@ bnad_cb_enet_mtu_set(struct bnad *bnad)
 	complete(&bnad->bnad_completions.mtu_comp);
 }
 
+void
+bnad_cb_completion(void *arg, enum bfa_status status)
+{
+	struct bnad_iocmd_comp *iocmd_comp =
+			(struct bnad_iocmd_comp *)arg;
+
+	iocmd_comp->comp_status = (u32) status;
+	complete(&iocmd_comp->comp);
+}
+
 /* Resource allocation, free functions */
 
 static void
@@ -3167,12 +3196,14 @@ bnad_lock_init(struct bnad *bnad)
 {
 	spin_lock_init(&bnad->bna_lock);
 	mutex_init(&bnad->conf_mutex);
+	mutex_init(&bnad_list_mutex);
 }
 
 static void
 bnad_lock_uninit(struct bnad *bnad)
 {
 	mutex_destroy(&bnad->conf_mutex);
+	mutex_destroy(&bnad_list_mutex);
 }
 
 /* PCI Initialization */
@@ -3253,8 +3284,8 @@ bnad_pci_probe(struct pci_dev *pdev,
 		return err;
 	}
 	bnad = netdev_priv(netdev);
-
 	bnad_lock_init(bnad);
+	bnad_add_to_list(bnad);
 
 	mutex_lock(&bnad->conf_mutex);
 	/*
@@ -3407,6 +3438,7 @@ pci_uninit:
 	bnad_pci_uninit(pdev);
 unlock_mutex:
 	mutex_unlock(&bnad->conf_mutex);
+	bnad_remove_from_list(bnad);
 	bnad_lock_uninit(bnad);
 	free_netdev(netdev);
 	return err;
@@ -3445,6 +3477,7 @@ bnad_pci_remove(struct pci_dev *pdev)
 	bnad_disable_msix(bnad);
 	bnad_pci_uninit(pdev);
 	mutex_unlock(&bnad->conf_mutex);
+	bnad_remove_from_list(bnad);
 	bnad_lock_uninit(bnad);
 	bnad_uninit(bnad);
 	free_netdev(netdev);

drivers/net/ethernet/brocade/bna/bnad.h

@@ -124,6 +124,12 @@ enum bnad_link_state {
 	BNAD_LS_UP		= 1
 };
 
+struct bnad_iocmd_comp {
+	struct bnad		*bnad;
+	struct completion	comp;
+	int			comp_status;
+};
+
 struct bnad_completion {
 	struct completion	ioc_comp;
 	struct completion	ucast_comp;
@@ -251,6 +257,8 @@ struct bnad_unmap_q {
 
 struct bnad {
 	struct net_device	*netdev;
+	u32			id;
+	struct list_head	list_entry;
 
 	/* Data path */
 	struct bnad_tx_info tx_info[BNAD_MAX_TX];
@@ -340,6 +348,7 @@ extern int bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr);
 extern int bnad_enable_default_bcast(struct bnad *bnad);
 extern void bnad_restore_vlans(struct bnad *bnad, u32 rx_id);
 extern void bnad_set_ethtool_ops(struct net_device *netdev);
+extern void bnad_cb_completion(void *arg, enum bfa_status status);
 
 /* Configuration & setup */
 extern void bnad_tx_coalescing_timeo_set(struct bnad *bnad);

drivers/net/ethernet/brocade/bna/bnad_ethtool.c

@@ -935,6 +935,143 @@ bnad_get_sset_count(struct net_device *netdev, int sset)
 	}
 }
 
+static u32
+bnad_get_flash_partition_by_offset(struct bnad *bnad, u32 offset,
+				u32 *base_offset)
+{
+	struct bfa_flash_attr *flash_attr;
+	struct bnad_iocmd_comp fcomp;
+	u32 i, flash_part = 0, ret;
+	unsigned long flags = 0;
+
+	flash_attr = kzalloc(sizeof(struct bfa_flash_attr), GFP_KERNEL);
+	if (!flash_attr)
+		return -ENOMEM;
+
+	fcomp.bnad = bnad;
+	fcomp.comp_status = 0;
+
+	init_completion(&fcomp.comp);
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	ret = bfa_nw_flash_get_attr(&bnad->bna.flash, flash_attr,
+				bnad_cb_completion, &fcomp);
+	if (ret != BFA_STATUS_OK) {
+		spin_unlock_irqrestore(&bnad->bna_lock, flags);
+		kfree(flash_attr);
+		goto out_err;
+	}
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+	wait_for_completion(&fcomp.comp);
+	ret = fcomp.comp_status;
+
+	/* Check for the flash type & base offset value */
+	if (ret == BFA_STATUS_OK) {
+		for (i = 0; i < flash_attr->npart; i++) {
+			if (offset >= flash_attr->part[i].part_off &&
+			    offset < (flash_attr->part[i].part_off +
+				      flash_attr->part[i].part_size)) {
+				flash_part = flash_attr->part[i].part_type;
+				*base_offset = flash_attr->part[i].part_off;
+				break;
+			}
+		}
+	}
+	kfree(flash_attr);
+	return flash_part;
+out_err:
+	return -EINVAL;
+}
+
+static int
+bnad_get_eeprom_len(struct net_device *netdev)
+{
+	return BFA_TOTAL_FLASH_SIZE;
+}
+
+static int
+bnad_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
+		u8 *bytes)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+	struct bnad_iocmd_comp fcomp;
+	u32 flash_part = 0, base_offset = 0;
+	unsigned long flags = 0;
+	int ret = 0;
+
+	/* Check if the flash read request is valid */
+	if (eeprom->magic != (bnad->pcidev->vendor |
+			     (bnad->pcidev->device << 16)))
+		return -EFAULT;
+
+	/* Query the flash partition based on the offset */
+	flash_part = bnad_get_flash_partition_by_offset(bnad,
+				eeprom->offset, &base_offset);
+	if (flash_part <= 0)
+		return -EFAULT;
+
+	fcomp.bnad = bnad;
+	fcomp.comp_status = 0;
+
+	init_completion(&fcomp.comp);
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	ret = bfa_nw_flash_read_part(&bnad->bna.flash, flash_part,
+				bnad->id, bytes, eeprom->len,
+				eeprom->offset - base_offset,
+				bnad_cb_completion, &fcomp);
+	if (ret != BFA_STATUS_OK) {
+		spin_unlock_irqrestore(&bnad->bna_lock, flags);
+		goto done;
+	}
+
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+	wait_for_completion(&fcomp.comp);
+	ret = fcomp.comp_status;
+done:
+	return ret;
+}
+
+static int
+bnad_set_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
+		u8 *bytes)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+	struct bnad_iocmd_comp fcomp;
+	u32 flash_part = 0, base_offset = 0;
+	unsigned long flags = 0;
+	int ret = 0;
+
+	/* Check if the flash update request is valid */
+	if (eeprom->magic != (bnad->pcidev->vendor |
+			     (bnad->pcidev->device << 16)))
+		return -EINVAL;
+
+	/* Query the flash partition based on the offset */
+	flash_part = bnad_get_flash_partition_by_offset(bnad,
+				eeprom->offset, &base_offset);
+	if (flash_part <= 0)
+		return -EFAULT;
+
+	fcomp.bnad = bnad;
+	fcomp.comp_status = 0;
+
+	init_completion(&fcomp.comp);
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	ret = bfa_nw_flash_update_part(&bnad->bna.flash, flash_part,
+				bnad->id, bytes, eeprom->len,
+				eeprom->offset - base_offset,
+				bnad_cb_completion, &fcomp);
+	if (ret != BFA_STATUS_OK) {
+		spin_unlock_irqrestore(&bnad->bna_lock, flags);
+		goto done;
+	}
+
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+	wait_for_completion(&fcomp.comp);
+	ret = fcomp.comp_status;
+done:
+	return ret;
+}
+
 static struct ethtool_ops bnad_ethtool_ops = {
 	.get_settings = bnad_get_settings,
 	.set_settings = bnad_set_settings,
@@ -949,7 +1086,10 @@ static struct ethtool_ops bnad_ethtool_ops = {
 	.set_pauseparam = bnad_set_pauseparam,
 	.get_strings = bnad_get_strings,
 	.get_ethtool_stats = bnad_get_ethtool_stats,
-	.get_sset_count = bnad_get_sset_count
+	.get_sset_count = bnad_get_sset_count,
+	.get_eeprom_len = bnad_get_eeprom_len,
+	.get_eeprom = bnad_get_eeprom,
+	.set_eeprom = bnad_set_eeprom,
 };
 
 void