From: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org,
Vasundhara Volam <vasundhara-v.volam@broadcom.com>,
Michael Chan <michael.chan@broadcom.com>
Subject: [PATCH v4 net-next 4/6] bnxt_en: Read partno and serialno of the board from VPD
Date: Fri, 27 Mar 2020 15:05:49 +0530 [thread overview]
Message-ID: <1585301751-26044-1-git-send-email-vasundhara-v.volam@broadcom.com> (raw)
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: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 59 +++++++++++++++++++++++++++++++
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 4 +++
2 files changed, 63 insertions(+)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 3861dff..fead64f 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -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;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index a1e9d33..f2caa27 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -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;
--
1.8.3.1
next reply other threads:[~2020-03-27 9:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-27 9:35 Vasundhara Volam [this message]
2020-03-27 9:35 ` [PATCH v4 net-next 5/6] bnxt_en: Add partno to devlink info_get cb Vasundhara Volam
2020-03-27 9:35 ` [PATCH v4 net-next 6/6] bnxt_en: Fix "fw.mgmt" and "fw.nsci" info via " Vasundhara Volam
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