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authorHeiner Kallweit <hkallweit1@gmail.com>2021-08-18 22:03:44 +0300
committerBjorn Helgaas <bhelgaas@google.com>2021-08-20 23:49:00 +0300
commit37838aa437c78fefd7d818f5f01a3a3950e92f40 (patch)
tree947723f1c76760d0b6371da52b7a470f6fca05b3 /drivers/net/ethernet/sfc
parent5119e20facfaa9f5454dd01192f3729415c7b139 (diff)
downloadlinux-37838aa437c78fefd7d818f5f01a3a3950e92f40.tar.xz
sfc: Search VPD with pci_vpd_find_ro_info_keyword()
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to simplify the code. Replace netif_err() with pci_err() because the netdevice isn't registered yet, which results in very ugly messages. Use kmemdup_nul() instead of open-coding it. Link: https://lore.kernel.org/r/bf5d4ba9-61a9-2bfe-19ec-75472732d74d@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/net/ethernet/sfc')
-rw-r--r--drivers/net/ethernet/sfc/efx.c65
1 files changed, 14 insertions, 51 deletions
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index cae78263110d..8b3237b923d6 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -905,9 +905,9 @@ static void efx_pci_remove(struct pci_dev *pci_dev)
static void efx_probe_vpd_strings(struct efx_nic *efx)
{
struct pci_dev *dev = efx->pci_dev;
- int ro_start, ro_size, i, j;
- unsigned int vpd_size;
+ unsigned int vpd_size, kw_len;
u8 *vpd_data;
+ int start;
vpd_data = pci_vpd_alloc(dev, &vpd_size);
if (IS_ERR(vpd_data)) {
@@ -915,57 +915,20 @@ static void efx_probe_vpd_strings(struct efx_nic *efx)
return;
}
- /* Get the Read only section */
- ro_start = pci_vpd_find_tag(vpd_data, vpd_size, PCI_VPD_LRDT_RO_DATA);
- if (ro_start < 0) {
- netif_err(efx, drv, efx->net_dev, "VPD Read-only not found\n");
- goto out;
- }
-
- ro_size = pci_vpd_lrdt_size(&vpd_data[ro_start]);
- j = ro_size;
- i = ro_start + PCI_VPD_LRDT_TAG_SIZE;
- if (i + j > vpd_size)
- j = vpd_size - i;
-
- /* Get the Part number */
- i = pci_vpd_find_info_keyword(vpd_data, i, j, "PN");
- if (i < 0) {
- netif_err(efx, drv, efx->net_dev, "Part number not found\n");
- goto out;
- }
-
- j = pci_vpd_info_field_size(&vpd_data[i]);
- i += PCI_VPD_INFO_FLD_HDR_SIZE;
- if (i + j > vpd_size) {
- netif_err(efx, drv, efx->net_dev, "Incomplete part number\n");
- goto out;
- }
-
- netif_info(efx, drv, efx->net_dev,
- "Part Number : %.*s\n", j, &vpd_data[i]);
-
- i = ro_start + PCI_VPD_LRDT_TAG_SIZE;
- j = ro_size;
- i = pci_vpd_find_info_keyword(vpd_data, i, j, "SN");
- if (i < 0) {
- netif_err(efx, drv, efx->net_dev, "Serial number not found\n");
- goto out;
- }
-
- j = pci_vpd_info_field_size(&vpd_data[i]);
- i += PCI_VPD_INFO_FLD_HDR_SIZE;
- if (i + j > vpd_size) {
- netif_err(efx, drv, efx->net_dev, "Incomplete serial number\n");
- goto out;
- }
+ start = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size,
+ PCI_VPD_RO_KEYWORD_PARTNO, &kw_len);
+ if (start < 0)
+ pci_err(dev, "Part number not found or incomplete\n");
+ else
+ pci_info(dev, "Part Number : %.*s\n", kw_len, vpd_data + start);
- efx->vpd_sn = kmalloc(j + 1, GFP_KERNEL);
- if (!efx->vpd_sn)
- goto out;
+ start = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size,
+ PCI_VPD_RO_KEYWORD_SERIALNO, &kw_len);
+ if (start < 0)
+ pci_err(dev, "Serial number not found or incomplete\n");
+ else
+ efx->vpd_sn = kmemdup_nul(vpd_data + start, kw_len, GFP_KERNEL);
- snprintf(efx->vpd_sn, j + 1, "%s", &vpd_data[i]);
-out:
kfree(vpd_data);
}