Commit a0d0fd70 authored by Vasundhara Volam's avatar Vasundhara Volam Committed by David S. Miller
Browse files

bnxt_en: Read partno and serialno of the board from VPD 



Store the part number and serial number information from VPD in
the bnxt structure. Follow up patch will add the support to display
the information via devlink command.

Signed-off-by: default avatarVasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: default avatarMichael Chan <michael.chan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 16efafa3

drivers/net/ethernet/broadcom/bnxt/bnxt.c

+59 −0
Original line number Diff line number Diff line
@@ -11752,6 +11752,63 @@ static int bnxt_init_mac_addr(struct bnxt *bp) 
	return rc;

}



#define BNXT_VPD_LEN	512

static void bnxt_vpd_read_info(struct bnxt *bp)

{

	struct pci_dev *pdev = bp->pdev;

	int i, len, pos, ro_size;

	ssize_t vpd_size;

	u8 *vpd_data;



	vpd_data = kmalloc(BNXT_VPD_LEN, GFP_KERNEL);

	if (!vpd_data)

		return;



	vpd_size = pci_read_vpd(pdev, 0, BNXT_VPD_LEN, vpd_data);

	if (vpd_size <= 0) {

		netdev_err(bp->dev, "Unable to read VPD\n");

		goto exit;

	}



	i = pci_vpd_find_tag(vpd_data, 0, vpd_size, PCI_VPD_LRDT_RO_DATA);

	if (i < 0) {

		netdev_err(bp->dev, "VPD READ-Only not found\n");

		goto exit;

	}



	ro_size = pci_vpd_lrdt_size(&vpd_data[i]);

	i += PCI_VPD_LRDT_TAG_SIZE;

	if (i + ro_size > vpd_size)

		goto exit;



	pos = pci_vpd_find_info_keyword(vpd_data, i, ro_size,

					PCI_VPD_RO_KEYWORD_PARTNO);

	if (pos < 0)

		goto read_sn;



	len = pci_vpd_info_field_size(&vpd_data[pos]);

	pos += PCI_VPD_INFO_FLD_HDR_SIZE;

	if (len + pos > vpd_size)

		goto read_sn;



	strlcpy(bp->board_partno, &vpd_data[pos], min(len, BNXT_VPD_FLD_LEN));



read_sn:

	pos = pci_vpd_find_info_keyword(vpd_data, i, ro_size,

					PCI_VPD_RO_KEYWORD_SERIALNO);

	if (pos < 0)

		goto exit;



	len = pci_vpd_info_field_size(&vpd_data[pos]);

	pos += PCI_VPD_INFO_FLD_HDR_SIZE;

	if (len + pos > vpd_size)

		goto exit;



	strlcpy(bp->board_serialno, &vpd_data[pos], min(len, BNXT_VPD_FLD_LEN));

exit:

	kfree(vpd_data);

}



static int bnxt_pcie_dsn_get(struct bnxt *bp, u8 dsn[])

{

	struct pci_dev *pdev = bp->pdev;
@@ -11809,6 +11866,8 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 
	dev->ethtool_ops = &bnxt_ethtool_ops;

	pci_set_drvdata(pdev, dev);



	bnxt_vpd_read_info(bp);



	rc = bnxt_alloc_hwrm_resources(bp);

	if (rc)

		goto init_err_pci_clean;

drivers/net/ethernet/broadcom/bnxt/bnxt.h

+4 −0
Original line number Diff line number Diff line
@@ -1500,6 +1500,10 @@ struct bnxt { 
	 (chip_num) == CHIP_NUM_58804 ||        \

	 (chip_num) == CHIP_NUM_58808)



#define BNXT_VPD_FLD_LEN	32

	char			board_partno[BNXT_VPD_FLD_LEN];

	char			board_serialno[BNXT_VPD_FLD_LEN];



	struct net_device	*dev;

	struct pci_dev		*pdev;

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