X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fpci%2Fpci-sysfs.c;h=bc405c035ce34b4ae00d54a61286782e31416125;hb=722fdb33591bc7308a661913fb2f829128236b6f;hp=56a3b397efee217736b1ce54d6f7621619cb04f4;hpb=905ec87e93bc9e01b15c60035cd6a50c636cbaef;p=linux-2.6 diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 56a3b397ef..bc405c035c 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -43,6 +43,29 @@ pci_config_attr(subsystem_vendor, "0x%04x\n"); pci_config_attr(subsystem_device, "0x%04x\n"); pci_config_attr(class, "0x%06x\n"); pci_config_attr(irq, "%u\n"); +pci_config_attr(is_enabled, "%u\n"); + +static ssize_t broken_parity_status_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct pci_dev *pdev = to_pci_dev(dev); + return sprintf (buf, "%u\n", pdev->broken_parity_status); +} + +static ssize_t broken_parity_status_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct pci_dev *pdev = to_pci_dev(dev); + ssize_t consumed = -EINVAL; + + if ((count > 0) && (*buf == '0' || *buf == '1')) { + pdev->broken_parity_status = *buf == '1' ? 1 : 0; + consumed = count; + } + return consumed; +} static ssize_t local_cpus_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -90,6 +113,25 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, (u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8), (u8)(pci_dev->class)); } +static ssize_t +is_enabled_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct pci_dev *pdev = to_pci_dev(dev); + + /* this can crash the machine when done on the "wrong" device */ + if (!capable(CAP_SYS_ADMIN)) + return count; + + if (*buf == '0') + pci_disable_device(pdev); + + if (*buf == '1') + pci_enable_device(pdev); + + return count; +} + struct device_attribute pci_dev_attrs[] = { __ATTR_RO(resource), @@ -101,6 +143,9 @@ struct device_attribute pci_dev_attrs[] = { __ATTR_RO(irq), __ATTR_RO(local_cpus), __ATTR_RO(modalias), + __ATTR(enable, 0600, is_enabled_show, is_enabled_store), + __ATTR(broken_parity_status,(S_IRUGO|S_IWUSR), + broken_parity_status_show,broken_parity_status_store), __ATTR_NULL, }; @@ -130,7 +175,7 @@ pci_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count) if ((off & 1) && size) { u8 val; - pci_read_config_byte(dev, off, &val); + pci_user_read_config_byte(dev, off, &val); data[off - init_off] = val; off++; size--; @@ -138,7 +183,7 @@ pci_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count) if ((off & 3) && size > 2) { u16 val; - pci_read_config_word(dev, off, &val); + pci_user_read_config_word(dev, off, &val); data[off - init_off] = val & 0xff; data[off - init_off + 1] = (val >> 8) & 0xff; off += 2; @@ -147,7 +192,7 @@ pci_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count) while (size > 3) { u32 val; - pci_read_config_dword(dev, off, &val); + pci_user_read_config_dword(dev, off, &val); data[off - init_off] = val & 0xff; data[off - init_off + 1] = (val >> 8) & 0xff; data[off - init_off + 2] = (val >> 16) & 0xff; @@ -158,7 +203,7 @@ pci_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count) if (size >= 2) { u16 val; - pci_read_config_word(dev, off, &val); + pci_user_read_config_word(dev, off, &val); data[off - init_off] = val & 0xff; data[off - init_off + 1] = (val >> 8) & 0xff; off += 2; @@ -167,7 +212,7 @@ pci_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count) if (size > 0) { u8 val; - pci_read_config_byte(dev, off, &val); + pci_user_read_config_byte(dev, off, &val); data[off - init_off] = val; off++; --size; @@ -192,7 +237,7 @@ pci_write_config(struct kobject *kobj, char *buf, loff_t off, size_t count) } if ((off & 1) && size) { - pci_write_config_byte(dev, off, data[off - init_off]); + pci_user_write_config_byte(dev, off, data[off - init_off]); off++; size--; } @@ -200,7 +245,7 @@ pci_write_config(struct kobject *kobj, char *buf, loff_t off, size_t count) if ((off & 3) && size > 2) { u16 val = data[off - init_off]; val |= (u16) data[off - init_off + 1] << 8; - pci_write_config_word(dev, off, val); + pci_user_write_config_word(dev, off, val); off += 2; size -= 2; } @@ -210,7 +255,7 @@ pci_write_config(struct kobject *kobj, char *buf, loff_t off, size_t count) val |= (u32) data[off - init_off + 1] << 8; val |= (u32) data[off - init_off + 2] << 16; val |= (u32) data[off - init_off + 3] << 24; - pci_write_config_dword(dev, off, val); + pci_user_write_config_dword(dev, off, val); off += 4; size -= 4; } @@ -218,13 +263,13 @@ pci_write_config(struct kobject *kobj, char *buf, loff_t off, size_t count) if (size >= 2) { u16 val = data[off - init_off]; val |= (u16) data[off - init_off + 1] << 8; - pci_write_config_word(dev, off, val); + pci_user_write_config_word(dev, off, val); off += 2; size -= 2; } if (size) { - pci_write_config_byte(dev, off, data[off - init_off]); + pci_user_write_config_byte(dev, off, data[off - init_off]); off++; --size; } @@ -360,7 +405,7 @@ pci_create_resource_files(struct pci_dev *pdev) continue; /* allocate attribute structure, piggyback attribute name */ - res_attr = kcalloc(1, sizeof(*res_attr) + 10, GFP_ATOMIC); + res_attr = kzalloc(sizeof(*res_attr) + 10, GFP_ATOMIC); if (res_attr) { char *res_attr_name = (char *)(res_attr + 1); @@ -501,9 +546,8 @@ int pci_create_sysfs_dev_files (struct pci_dev *pdev) if (pci_resource_len(pdev, PCI_ROM_RESOURCE)) { struct bin_attribute *rom_attr; - rom_attr = kmalloc(sizeof(*rom_attr), GFP_ATOMIC); + rom_attr = kzalloc(sizeof(*rom_attr), GFP_ATOMIC); if (rom_attr) { - memset(rom_attr, 0x00, sizeof(*rom_attr)); pdev->rom_attr = rom_attr; rom_attr->size = pci_resource_len(pdev, PCI_ROM_RESOURCE); rom_attr->attr.name = "rom";