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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-15 08:19:33 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-15 08:19:33 -0700 |
commit | df3d80f5a5c74168be42788364d13cf6c83c7b9c (patch) | |
tree | 892a964c2fd28d028f2fb7471e8543d3f4006a58 /drivers/scsi/scsi_sysfs.c | |
parent | 3d06f7a5f74a813cee817c4b30b5e6f0398da0be (diff) | |
parent | c8e91b0a8fc8493e3bf3efcb3c8f866e9453cf1c (diff) | |
download | kernel_samsung_smdk4412-df3d80f5a5c74168be42788364d13cf6c83c7b9c.zip kernel_samsung_smdk4412-df3d80f5a5c74168be42788364d13cf6c83c7b9c.tar.gz kernel_samsung_smdk4412-df3d80f5a5c74168be42788364d13cf6c83c7b9c.tar.bz2 |
Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (207 commits)
[SCSI] gdth: fix CONFIG_ISA build failure
[SCSI] esp_scsi: remove __dev{init,exit}
[SCSI] gdth: !use_sg cleanup and use of scsi accessors
[SCSI] gdth: Move members from SCp to gdth_cmndinfo, stage 2
[SCSI] gdth: Setup proper per-command private data
[SCSI] gdth: Remove gdth_ctr_tab[]
[SCSI] gdth: switch to modern scsi host registration
[SCSI] gdth: gdth_interrupt() gdth_get_status() & gdth_wait() fixes
[SCSI] gdth: clean up host private data
[SCSI] gdth: Remove virt hosts
[SCSI] gdth: Reorder scsi_host_template intitializers
[SCSI] gdth: kill gdth_{read,write}[bwl] wrappers
[SCSI] gdth: Remove 2.4.x support, in-kernel changelog
[SCSI] gdth: split out pci probing
[SCSI] gdth: split out eisa probing
[SCSI] gdth: split out isa probing
gdth: Make one abuse of scsi_cmnd less obvious
[SCSI] NCR5380: Use scsi_eh API for REQUEST_SENSE invocation
[SCSI] usb storage: use scsi_eh API in REQUEST_SENSE execution
[SCSI] scsi_error: Refactoring scsi_error to facilitate in synchronous REQUEST_SENSE
...
Diffstat (limited to 'drivers/scsi/scsi_sysfs.c')
-rw-r--r-- | drivers/scsi/scsi_sysfs.c | 180 |
1 files changed, 95 insertions, 85 deletions
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index ede9986..daed37d 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -190,6 +190,46 @@ show_shost_state(struct class_device *class_dev, char *buf) static CLASS_DEVICE_ATTR(state, S_IRUGO | S_IWUSR, show_shost_state, store_shost_state); +static ssize_t +show_shost_mode(unsigned int mode, char *buf) +{ + ssize_t len = 0; + + if (mode & MODE_INITIATOR) + len = sprintf(buf, "%s", "Initiator"); + + if (mode & MODE_TARGET) + len += sprintf(buf + len, "%s%s", len ? ", " : "", "Target"); + + len += sprintf(buf + len, "\n"); + + return len; +} + +static ssize_t show_shost_supported_mode(struct class_device *class_dev, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(class_dev); + + if (shost->hostt->supported_mode == MODE_UNKNOWN) + return snprintf(buf, 20, "unknown\n"); + else + return show_shost_mode(shost->hostt->supported_mode, buf); +} + +static CLASS_DEVICE_ATTR(supported_mode, S_IRUGO | S_IWUSR, show_shost_supported_mode, NULL); + +static ssize_t show_shost_active_mode(struct class_device *class_dev, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(class_dev); + + if (shost->active_mode == MODE_UNKNOWN) + return snprintf(buf, 20, "unknown\n"); + else + return show_shost_mode(shost->active_mode, buf); +} + +static CLASS_DEVICE_ATTR(active_mode, S_IRUGO | S_IWUSR, show_shost_active_mode, NULL); + shost_rd_attr(unique_id, "%u\n"); shost_rd_attr(host_busy, "%hu\n"); shost_rd_attr(cmd_per_lun, "%hd\n"); @@ -208,6 +248,8 @@ static struct class_device_attribute *scsi_sysfs_shost_attrs[] = { &class_device_attr_proc_name, &class_device_attr_scan, &class_device_attr_state, + &class_device_attr_supported_mode, + &class_device_attr_active_mode, NULL }; @@ -571,24 +613,31 @@ sdev_show_modalias(struct device *dev, struct device_attribute *attr, char *buf) static DEVICE_ATTR(modalias, S_IRUGO, sdev_show_modalias, NULL); /* Default template for device attributes. May NOT be modified */ -static struct device_attribute *scsi_sysfs_sdev_attrs[] = { - &dev_attr_device_blocked, - &dev_attr_queue_depth, - &dev_attr_queue_type, - &dev_attr_type, - &dev_attr_scsi_level, - &dev_attr_vendor, - &dev_attr_model, - &dev_attr_rev, - &dev_attr_rescan, - &dev_attr_delete, - &dev_attr_state, - &dev_attr_timeout, - &dev_attr_iocounterbits, - &dev_attr_iorequest_cnt, - &dev_attr_iodone_cnt, - &dev_attr_ioerr_cnt, - &dev_attr_modalias, +static struct attribute *scsi_sdev_attrs[] = { + &dev_attr_device_blocked.attr, + &dev_attr_type.attr, + &dev_attr_scsi_level.attr, + &dev_attr_vendor.attr, + &dev_attr_model.attr, + &dev_attr_rev.attr, + &dev_attr_rescan.attr, + &dev_attr_delete.attr, + &dev_attr_state.attr, + &dev_attr_timeout.attr, + &dev_attr_iocounterbits.attr, + &dev_attr_iorequest_cnt.attr, + &dev_attr_iodone_cnt.attr, + &dev_attr_ioerr_cnt.attr, + &dev_attr_modalias.attr, + NULL +}; + +static struct attribute_group scsi_sdev_attr_group = { + .attrs = scsi_sdev_attrs, +}; + +static struct attribute_group *scsi_sdev_attr_groups[] = { + &scsi_sdev_attr_group, NULL }; @@ -650,56 +699,6 @@ static struct device_attribute sdev_attr_queue_type_rw = __ATTR(queue_type, S_IRUGO | S_IWUSR, show_queue_type_field, sdev_store_queue_type_rw); -static struct device_attribute *attr_changed_internally( - struct Scsi_Host *shost, - struct device_attribute * attr) -{ - if (!strcmp("queue_depth", attr->attr.name) - && shost->hostt->change_queue_depth) - return &sdev_attr_queue_depth_rw; - else if (!strcmp("queue_type", attr->attr.name) - && shost->hostt->change_queue_type) - return &sdev_attr_queue_type_rw; - return attr; -} - - -static struct device_attribute *attr_overridden( - struct device_attribute **attrs, - struct device_attribute *attr) -{ - int i; - - if (!attrs) - return NULL; - for (i = 0; attrs[i]; i++) - if (!strcmp(attrs[i]->attr.name, attr->attr.name)) - return attrs[i]; - return NULL; -} - -static int attr_add(struct device *dev, struct device_attribute *attr) -{ - struct device_attribute *base_attr; - - /* - * Spare the caller from having to copy things it's not interested in. - */ - base_attr = attr_overridden(scsi_sysfs_sdev_attrs, attr); - if (base_attr) { - /* extend permissions */ - attr->attr.mode |= base_attr->attr.mode; - - /* override null show/store with default */ - if (!attr->show) - attr->show = base_attr->show; - if (!attr->store) - attr->store = base_attr->store; - } - - return device_create_file(dev, attr); -} - /** * scsi_sysfs_add_sdev - add scsi device to sysfs * @sdev: scsi_device to add @@ -731,6 +730,24 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev) * released by the sdev_class .release */ get_device(&sdev->sdev_gendev); + /* create queue files, which may be writable, depending on the host */ + if (sdev->host->hostt->change_queue_depth) + error = device_create_file(&sdev->sdev_gendev, &sdev_attr_queue_depth_rw); + else + error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_depth); + if (error) { + __scsi_remove_device(sdev); + goto out; + } + if (sdev->host->hostt->change_queue_type) + error = device_create_file(&sdev->sdev_gendev, &sdev_attr_queue_type_rw); + else + error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_type); + if (error) { + __scsi_remove_device(sdev); + goto out; + } + error = bsg_register_queue(rq, &sdev->sdev_gendev, NULL); if (error) @@ -741,9 +758,10 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev) * nothing went wrong */ error = 0; + /* add additional host specific attributes */ if (sdev->host->hostt->sdev_attrs) { for (i = 0; sdev->host->hostt->sdev_attrs[i]; i++) { - error = attr_add(&sdev->sdev_gendev, + error = device_create_file(&sdev->sdev_gendev, sdev->host->hostt->sdev_attrs[i]); if (error) { __scsi_remove_device(sdev); @@ -751,20 +769,6 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev) } } } - - for (i = 0; scsi_sysfs_sdev_attrs[i]; i++) { - if (!attr_overridden(sdev->host->hostt->sdev_attrs, - scsi_sysfs_sdev_attrs[i])) { - struct device_attribute * attr = - attr_changed_internally(sdev->host, - scsi_sysfs_sdev_attrs[i]); - error = device_create_file(&sdev->sdev_gendev, attr); - if (error) { - __scsi_remove_device(sdev); - goto out; - } - } - } transport_add_device(&sdev->sdev_gendev); out: @@ -951,6 +955,12 @@ int scsi_sysfs_add_host(struct Scsi_Host *shost) return 0; } +static struct device_type scsi_dev_type = { + .name = "scsi_device", + .release = scsi_device_dev_release, + .groups = scsi_sdev_attr_groups, +}; + void scsi_sysfs_device_initialize(struct scsi_device *sdev) { unsigned long flags; @@ -959,7 +969,7 @@ void scsi_sysfs_device_initialize(struct scsi_device *sdev) device_initialize(&sdev->sdev_gendev); sdev->sdev_gendev.bus = &scsi_bus_type; - sdev->sdev_gendev.release = scsi_device_dev_release; + sdev->sdev_gendev.type = &scsi_dev_type; sprintf(sdev->sdev_gendev.bus_id,"%d:%d:%d:%d", sdev->host->host_no, sdev->channel, sdev->id, sdev->lun); @@ -980,7 +990,7 @@ void scsi_sysfs_device_initialize(struct scsi_device *sdev) int scsi_is_sdev_device(const struct device *dev) { - return dev->release == scsi_device_dev_release; + return dev->type == &scsi_dev_type; } EXPORT_SYMBOL(scsi_is_sdev_device); 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