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From cf9db86987ccbc1a0eefd77e7b2f8b1c761be1a9 Mon Sep 17 00:00:00 2001
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From: Jordan Hargrave <Jordan_Hargrave@dell.com>
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Date: Wed, 16 Oct 2013 15:12:06 -0500
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Subject: [PATCH] Stop reading VPD data once VPD-R section has been read
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Mellanox cards were taking too long to read entire VPD
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---
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src/pci.c | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/src/pci.c b/src/pci.c
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index 7aa32fc..a2b9faa 100644
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--- a/src/pci.c
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+++ b/src/pci.c
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@@ -30,6 +30,7 @@ extern int is_valid_smbios;
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/* Borrowed from kernel vpd code */
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#define PCI_VPD_LRDT 0x80
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#define PCI_VPD_SRDT_END 0x78
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+#define PCI_VPDR_TAG 0x90
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#define PCI_VPD_SRDT_LEN_MASK 0x7
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#define PCI_VPD_LRDT_TAG_SIZE 3
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@@ -71,7 +72,7 @@ static int pci_vpd_size(struct pci_device *pdev, int fd)
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tag = buf[0] & ~PCI_VPD_SRDT_LEN_MASK;
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off += PCI_VPD_SRDT_TAG_SIZE + pci_vpd_srdt_size(buf);
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}
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- if (tag == 0 || tag == 0xFF || tag == PCI_VPD_SRDT_END)
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+ if (tag == 0 || tag == 0xFF || tag == PCI_VPD_SRDT_END || tag == PCI_VPDR_TAG)
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break;
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}
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return off;
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@@ -125,7 +126,7 @@ static int parse_vpd(struct libbiosdevname_state *state, struct pci_device *pdev
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int i, j, k, isz, jsz, port, func, pfi;
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struct pci_device *vf;
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- i = pci_vpd_find_tag(vpd, 0, len, 0x90);
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+ i = pci_vpd_find_tag(vpd, 0, len, PCI_VPDR_TAG);
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if (i < 0)
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return 1;
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isz = pci_vpd_lrdt_size(&vpd[i]);
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--
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1.8.5.3
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