diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-02 07:55:08 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-02 07:55:08 -0800 |
commit | 6d6b89bd2e316b78d668f761d380837b81fa71ef (patch) | |
tree | 7e63c58611fc6181153526abbdafdd846ed1a19d /drivers/pci/vpd.c | |
parent | 13dda80e48439b446d0bc9bab34b91484bc8f533 (diff) | |
parent | 2507c05ff55fbf38326b08ed27eaed233bc75042 (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.c | 61 |
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); |