diff options
Diffstat (limited to 'drivers/ata/libata-eh.c')
| -rw-r--r-- | drivers/ata/libata-eh.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 2ddc2ed9c29d..8219e2d71045 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -151,6 +151,73 @@ void ata_ehi_clear_desc(struct ata_eh_info *ehi) ehi->desc_len = 0; } +/** + * ata_port_desc - append port description + * @ap: target ATA port + * @fmt: printf format string + * + * Format string according to @fmt and append it to port + * description. If port description is not empty, " " is added + * in-between. This function is to be used while initializing + * ata_host. The description is printed on host registration. + * + * LOCKING: + * None. + */ +void ata_port_desc(struct ata_port *ap, const char *fmt, ...) +{ + va_list args; + + WARN_ON(!(ap->pflags & ATA_PFLAG_INITIALIZING)); + + if (ap->link.eh_info.desc_len) + __ata_ehi_push_desc(&ap->link.eh_info, " "); + + va_start(args, fmt); + __ata_ehi_pushv_desc(&ap->link.eh_info, fmt, args); + va_end(args); +} + +#ifdef CONFIG_PCI + +/** + * ata_port_pbar_desc - append PCI BAR description + * @ap: target ATA port + * @bar: target PCI BAR + * @offset: offset into PCI BAR + * @name: name of the area + * + * If @offset is negative, this function formats a string which + * contains the name, address, size and type of the BAR and + * appends it to the port description. If @offset is zero or + * positive, only name and offsetted address is appended. + * + * LOCKING: + * None. + */ +void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset, + const char *name) +{ + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + char *type = ""; + unsigned long long start, len; + + if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) + type = "m"; + else if (pci_resource_flags(pdev, bar) & IORESOURCE_IO) + type = "i"; + + start = (unsigned long long)pci_resource_start(pdev, bar); + len = (unsigned long long)pci_resource_len(pdev, bar); + + if (offset < 0) + ata_port_desc(ap, "%s %s%llu@0x%llx", name, type, len, start); + else + ata_port_desc(ap, "%s 0x%llx", name, start + offset); +} + +#endif /* CONFIG_PCI */ + static void ata_ering_record(struct ata_ering *ering, int is_io, unsigned int err_mask) { |