diff options
author | Stephen Hemminger <shemminger@vyatta.com> | 2008-12-18 12:17:16 -0500 |
---|---|---|
committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-01-07 14:13:18 -0500 |
commit | db5679437a2b938c9127480a3923633721583a4f (patch) | |
tree | b2625345baa35490104b81fc1c7bd8ef6bb74100 /drivers/pci/access.c | |
parent | 287d19ce2e67c15e79a187b3bdcbbea1a0a51a7d (diff) |
PCI: add interface to set visible size of VPD
The VPD on all devices may not be 32K. Unfortunately, there is no
generic way to find the size, so this adds a simple API hook
to reset it.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/access.c')
-rw-r--r-- | drivers/pci/access.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/pci/access.c b/drivers/pci/access.c index 86ec4ad44bcd..381444794778 100644 --- a/drivers/pci/access.c +++ b/drivers/pci/access.c | |||
@@ -340,6 +340,29 @@ int pci_vpd_pci22_init(struct pci_dev *dev) | |||
340 | } | 340 | } |
341 | 341 | ||
342 | /** | 342 | /** |
343 | * pci_vpd_truncate - Set available Vital Product Data size | ||
344 | * @dev: pci device struct | ||
345 | * @size: available memory in bytes | ||
346 | * | ||
347 | * Adjust size of available VPD area. | ||
348 | */ | ||
349 | int pci_vpd_truncate(struct pci_dev *dev, size_t size) | ||
350 | { | ||
351 | if (!dev->vpd) | ||
352 | return -EINVAL; | ||
353 | |||
354 | /* limited by the access method */ | ||
355 | if (size > dev->vpd->len) | ||
356 | return -EINVAL; | ||
357 | |||
358 | dev->vpd->len = size; | ||
359 | dev->vpd->attr->size = size; | ||
360 | |||
361 | return 0; | ||
362 | } | ||
363 | EXPORT_SYMBOL(pci_vpd_truncate); | ||
364 | |||
365 | /** | ||
343 | * pci_block_user_cfg_access - Block userspace PCI config reads/writes | 366 | * pci_block_user_cfg_access - Block userspace PCI config reads/writes |
344 | * @dev: pci device struct | 367 | * @dev: pci device struct |
345 | * | 368 | * |