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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-02 07:55:08 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-02 07:55:08 -0800
commit6d6b89bd2e316b78d668f761d380837b81fa71ef (patch)
tree7e63c58611fc6181153526abbdafdd846ed1a19d /drivers/pci/vpd.c
parent13dda80e48439b446d0bc9bab34b91484bc8f533 (diff)
parent2507c05ff55fbf38326b08ed27eaed233bc75042 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1341 commits) virtio_net: remove forgotten assignment be2net: fix tx completion polling sis190: fix cable detect via link status poll net: fix protocol sk_buff field bridge: Fix build error when IGMP_SNOOPING is not enabled bnx2x: Tx barriers and locks scm: Only support SCM_RIGHTS on unix domain sockets. vhost-net: restart tx poll on sk_sndbuf full vhost: fix get_user_pages_fast error handling vhost: initialize log eventfd context pointer vhost: logging thinko fix wireless: convert to use netdev_for_each_mc_addr ethtool: do not set some flags, if others failed ipoib: returned back addrlen check for mc addresses netlink: Adding inode field to /proc/net/netlink axnet_cs: add new id bridge: Make IGMP snooping depend upon BRIDGE. bridge: Add multicast count/interval sysfs entries bridge: Add hash elasticity/max sysfs entries bridge: Add multicast_snooping sysfs toggle ... Trivial conflicts in Documentation/feature-removal-schedule.txt
Diffstat (limited to 'drivers/pci/vpd.c')
-rw-r--r--drivers/pci/vpd.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/pci/vpd.c b/drivers/pci/vpd.c
new file mode 100644
index 00000000000..a5a5ca17cfe
--- /dev/null
+++ b/drivers/pci/vpd.c
@@ -0,0 +1,61 @@
+/*
+ * File: vpd.c
+ * Purpose: Provide PCI VPD support
+ *
+ * Copyright (C) 2010 Broadcom Corporation.
+ */
+
+#include <linux/pci.h>
+
+int pci_vpd_find_tag(const u8 *buf, unsigned int off, unsigned int len, u8 rdt)
+{
+ int i;
+
+ for (i = off; i < len; ) {
+ u8 val = buf[i];
+
+ if (val & PCI_VPD_LRDT) {
+ /* Don't return success of the tag isn't complete */
+ if (i + PCI_VPD_LRDT_TAG_SIZE > len)
+ break;
+
+ if (val == rdt)
+ return i;
+
+ i += PCI_VPD_LRDT_TAG_SIZE +
+ pci_vpd_lrdt_size(&buf[i]);
+ } else {
+ u8 tag = val & ~PCI_VPD_SRDT_LEN_MASK;
+
+ if (tag == rdt)
+ return i;
+
+ if (tag == PCI_VPD_SRDT_END)
+ break;
+
+ i += PCI_VPD_SRDT_TAG_SIZE +
+ pci_vpd_srdt_size(&buf[i]);
+ }
+ }
+
+ return -ENOENT;
+}
+EXPORT_SYMBOL_GPL(pci_vpd_find_tag);
+
+int pci_vpd_find_info_keyword(const u8 *buf, unsigned int off,
+ unsigned int len, const char *kw)
+{
+ int i;
+
+ for (i = off; i + PCI_VPD_INFO_FLD_HDR_SIZE <= off + len;) {
+ if (buf[i + 0] == kw[0] &&
+ buf[i + 1] == kw[1])
+ return i;
+
+ i += PCI_VPD_INFO_FLD_HDR_SIZE +
+ pci_vpd_info_field_size(&buf[i]);
+ }
+
+ return -ENOENT;
+}
+EXPORT_SYMBOL_GPL(pci_vpd_find_info_keyword);