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drivers/scsi/scsi_transport_sas.c
51.8 KB
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/* |
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* Copyright (C) 2005-2006 Dell Inc. |
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* Released under GPL v2. * * Serial Attached SCSI (SAS) transport class. * * The SAS transport class contains common code to deal with SAS HBAs, * an aproximated representation of SAS topologies in the driver model, |
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* and various sysfs attributes to expose these topologies and management |
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* interfaces to userspace. * * In addition to the basic SCSI core objects this transport class * introduces two additional intermediate objects: The SAS PHY * as represented by struct sas_phy defines an "outgoing" PHY on * a SAS HBA or Expander, and the SAS remote PHY represented by * struct sas_rphy defines an "incoming" PHY on a SAS Expander or * end device. Note that this is purely a software concept, the * underlying hardware for a PHY and a remote PHY is the exactly * the same. * * There is no concept of a SAS port in this code, users can see * what PHYs form a wide port based on the port_identifier attribute, * which is the same for all PHYs in a port. */ #include <linux/init.h> #include <linux/module.h> |
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#include <linux/jiffies.h> |
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#include <linux/err.h> |
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#include <linux/slab.h> #include <linux/string.h> |
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#include <linux/blkdev.h> #include <linux/bsg.h> |
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|
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#include <scsi/scsi.h> |
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#include <scsi/scsi_cmnd.h> |
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#include <scsi/scsi_request.h> |
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#include <scsi/scsi_device.h> #include <scsi/scsi_host.h> #include <scsi/scsi_transport.h> #include <scsi/scsi_transport_sas.h> |
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#include "scsi_sas_internal.h" |
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struct sas_host_attrs { struct list_head rphy_list; |
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struct mutex lock; |
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struct request_queue *q; |
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u32 next_target_id; |
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u32 next_expander_id; |
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int next_port_id; |
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}; #define to_sas_host_attrs(host) ((struct sas_host_attrs *)(host)->shost_data) /* * Hack to allow attributes of the same name in different objects. */ |
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#define SAS_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \ struct device_attribute dev_attr_##_prefix##_##_name = \ |
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__ATTR(_name,_mode,_show,_store) /* * Pretty printing helpers */ #define sas_bitfield_name_match(title, table) \ static ssize_t \ get_sas_##title##_names(u32 table_key, char *buf) \ { \ char *prefix = ""; \ ssize_t len = 0; \ int i; \ \ |
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for (i = 0; i < ARRAY_SIZE(table); i++) { \ |
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if (table[i].value & table_key) { \ len += sprintf(buf + len, "%s%s", \ prefix, table[i].name); \ prefix = ", "; \ } \ } \ len += sprintf(buf + len, " "); \ return len; \ } |
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#define sas_bitfield_name_set(title, table) \ static ssize_t \ set_sas_##title##_names(u32 *table_key, const char *buf) \ { \ ssize_t len = 0; \ int i; \ \ for (i = 0; i < ARRAY_SIZE(table); i++) { \ len = strlen(table[i].name); \ if (strncmp(buf, table[i].name, len) == 0 && \ (buf[len] == ' ' || buf[len] == '\0')) { \ *table_key = table[i].value; \ return 0; \ } \ } \ return -EINVAL; \ } |
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#define sas_bitfield_name_search(title, table) \ static ssize_t \ get_sas_##title##_names(u32 table_key, char *buf) \ { \ ssize_t len = 0; \ int i; \ \ |
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for (i = 0; i < ARRAY_SIZE(table); i++) { \ |
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if (table[i].value == table_key) { \ len += sprintf(buf + len, "%s", \ table[i].name); \ break; \ } \ } \ len += sprintf(buf + len, " "); \ return len; \ } static struct { u32 value; char *name; } sas_device_type_names[] = { { SAS_PHY_UNUSED, "unused" }, { SAS_END_DEVICE, "end device" }, { SAS_EDGE_EXPANDER_DEVICE, "edge expander" }, { SAS_FANOUT_EXPANDER_DEVICE, "fanout expander" }, }; sas_bitfield_name_search(device_type, sas_device_type_names) static struct { u32 value; char *name; } sas_protocol_names[] = { { SAS_PROTOCOL_SATA, "sata" }, { SAS_PROTOCOL_SMP, "smp" }, { SAS_PROTOCOL_STP, "stp" }, { SAS_PROTOCOL_SSP, "ssp" }, }; sas_bitfield_name_match(protocol, sas_protocol_names) static struct { u32 value; char *name; } sas_linkspeed_names[] = { { SAS_LINK_RATE_UNKNOWN, "Unknown" }, { SAS_PHY_DISABLED, "Phy disabled" }, { SAS_LINK_RATE_FAILED, "Link Rate failed" }, { SAS_SATA_SPINUP_HOLD, "Spin-up hold" }, { SAS_LINK_RATE_1_5_GBPS, "1.5 Gbit" }, { SAS_LINK_RATE_3_0_GBPS, "3.0 Gbit" }, |
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{ SAS_LINK_RATE_6_0_GBPS, "6.0 Gbit" }, |
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{ SAS_LINK_RATE_12_0_GBPS, "12.0 Gbit" }, |
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}; sas_bitfield_name_search(linkspeed, sas_linkspeed_names) |
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sas_bitfield_name_set(linkspeed, sas_linkspeed_names) |
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static struct sas_end_device *sas_sdev_to_rdev(struct scsi_device *sdev) { struct sas_rphy *rphy = target_to_rphy(sdev->sdev_target); struct sas_end_device *rdev; BUG_ON(rphy->identify.device_type != SAS_END_DEVICE); rdev = rphy_to_end_device(rphy); return rdev; } |
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static int sas_smp_dispatch(struct bsg_job *job) |
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{ |
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struct Scsi_Host *shost = dev_to_shost(job->dev); struct sas_rphy *rphy = NULL; |
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|
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if (!scsi_is_host_device(job->dev)) rphy = dev_to_rphy(job->dev); |
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|
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if (!job->req->next_rq) { dev_warn(job->dev, "space for a smp response is missing "); bsg_job_done(job, -EINVAL, 0); return 0; |
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} |
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|
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to_sas_internal(shost->transportt)->f->smp_handler(job, shost, rphy); return 0; |
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} |
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static void sas_host_release(struct device *dev) { struct Scsi_Host *shost = dev_to_shost(dev); struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); struct request_queue *q = sas_host->q; if (q) blk_cleanup_queue(q); } |
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static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy) |
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{ struct request_queue *q; |
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if (!to_sas_internal(shost->transportt)->f->smp_handler) { printk("%s can't handle SMP requests ", shost->hostt->name); return 0; } |
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if (rphy) { |
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q = bsg_setup_queue(&rphy->dev, dev_name(&rphy->dev), sas_smp_dispatch, 0, NULL); if (IS_ERR(q)) return PTR_ERR(q); rphy->q = q; |
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} else { |
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char name[20]; snprintf(name, sizeof(name), "sas_host%d", shost->host_no); q = bsg_setup_queue(&shost->shost_gendev, name, sas_smp_dispatch, 0, sas_host_release); if (IS_ERR(q)) return PTR_ERR(q); to_sas_host_attrs(shost)->q = q; |
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} |
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|
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/* * by default assume old behaviour and bounce for any highmem page */ blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH); |
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queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q); |
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queue_flag_set_unlocked(QUEUE_FLAG_SCSI_PASSTHROUGH, q); |
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return 0; |
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} |
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/* * SAS host attributes */ |
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static int sas_host_setup(struct transport_container *tc, struct device *dev, |
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struct device *cdev) |
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{ struct Scsi_Host *shost = dev_to_shost(dev); struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); INIT_LIST_HEAD(&sas_host->rphy_list); |
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mutex_init(&sas_host->lock); |
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sas_host->next_target_id = 0; |
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sas_host->next_expander_id = 0; |
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sas_host->next_port_id = 0; |
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|
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if (sas_bsg_initialize(shost, NULL)) |
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dev_printk(KERN_ERR, dev, "fail to a bsg device %d ", shost->host_no); |
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return 0; } |
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static int sas_host_remove(struct transport_container *tc, struct device *dev, |
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struct device *cdev) |
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{ struct Scsi_Host *shost = dev_to_shost(dev); |
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struct request_queue *q = to_sas_host_attrs(shost)->q; |
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|
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if (q) bsg_unregister_queue(q); |
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return 0; } |
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static DECLARE_TRANSPORT_CLASS(sas_host_class, |
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"sas_host", sas_host_setup, sas_host_remove, NULL); |
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static int sas_host_match(struct attribute_container *cont, struct device *dev) { struct Scsi_Host *shost; struct sas_internal *i; if (!scsi_is_host_device(dev)) return 0; shost = dev_to_shost(dev); if (!shost->transportt) return 0; if (shost->transportt->host_attrs.ac.class != &sas_host_class.class) return 0; i = to_sas_internal(shost->transportt); return &i->t.host_attrs.ac == cont; } static int do_sas_phy_delete(struct device *dev, void *data) { |
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int pass = (int)(unsigned long)data; if (pass == 0 && scsi_is_sas_port(dev)) sas_port_delete(dev_to_sas_port(dev)); else if (pass == 1 && scsi_is_sas_phy(dev)) |
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sas_phy_delete(dev_to_phy(dev)); return 0; } /** |
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* sas_remove_children - tear down a devices SAS data structures |
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* @dev: device belonging to the sas object * * Removes all SAS PHYs and remote PHYs for a given object */ void sas_remove_children(struct device *dev) { device_for_each_child(dev, (void *)0, do_sas_phy_delete); device_for_each_child(dev, (void *)1, do_sas_phy_delete); } EXPORT_SYMBOL(sas_remove_children); /** |
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* sas_remove_host - tear down a Scsi_Host's SAS data structures |
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* @shost: Scsi Host that is torn down * |
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* Removes all SAS PHYs and remote PHYs for a given Scsi_Host and remove the * Scsi_Host as well. * * Note: Do not call scsi_remove_host() on the Scsi_Host any more, as it is * already removed. |
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*/ void sas_remove_host(struct Scsi_Host *shost) { |
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sas_remove_children(&shost->shost_gendev); |
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scsi_remove_host(shost); |
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} EXPORT_SYMBOL(sas_remove_host); |
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/** |
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* sas_get_address - return the SAS address of the device * @sdev: scsi device * * Returns the SAS address of the scsi device */ u64 sas_get_address(struct scsi_device *sdev) { struct sas_end_device *rdev = sas_sdev_to_rdev(sdev); return rdev->rphy.identify.sas_address; } EXPORT_SYMBOL(sas_get_address); /** |
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* sas_tlr_supported - checking TLR bit in vpd 0x90 * @sdev: scsi device struct * * Check Transport Layer Retries are supported or not. * If vpd page 0x90 is present, TRL is supported. * */ unsigned int sas_tlr_supported(struct scsi_device *sdev) { const int vpd_len = 32; struct sas_end_device *rdev = sas_sdev_to_rdev(sdev); char *buffer = kzalloc(vpd_len, GFP_KERNEL); int ret = 0; |
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if (!buffer) goto out; |
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if (scsi_get_vpd_page(sdev, 0x90, buffer, vpd_len)) goto out; /* * Magic numbers: the VPD Protocol page (0x90) * has a 4 byte header and then one entry per device port * the TLR bit is at offset 8 on each port entry * if we take the first port, that's at total offset 12 */ ret = buffer[12] & 0x01; out: kfree(buffer); rdev->tlr_supported = ret; return ret; } EXPORT_SYMBOL_GPL(sas_tlr_supported); /** * sas_disable_tlr - setting TLR flags * @sdev: scsi device struct * * Seting tlr_enabled flag to 0. * */ void sas_disable_tlr(struct scsi_device *sdev) { struct sas_end_device *rdev = sas_sdev_to_rdev(sdev); rdev->tlr_enabled = 0; } EXPORT_SYMBOL_GPL(sas_disable_tlr); /** * sas_enable_tlr - setting TLR flags * @sdev: scsi device struct * * Seting tlr_enabled flag 1. * */ void sas_enable_tlr(struct scsi_device *sdev) { unsigned int tlr_supported = 0; tlr_supported = sas_tlr_supported(sdev); if (tlr_supported) { struct sas_end_device *rdev = sas_sdev_to_rdev(sdev); rdev->tlr_enabled = 1; } return; } EXPORT_SYMBOL_GPL(sas_enable_tlr); unsigned int sas_is_tlr_enabled(struct scsi_device *sdev) { struct sas_end_device *rdev = sas_sdev_to_rdev(sdev); return rdev->tlr_enabled; } EXPORT_SYMBOL_GPL(sas_is_tlr_enabled); |
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/* |
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* SAS Phy attributes |
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*/ #define sas_phy_show_simple(field, name, format_string, cast) \ static ssize_t \ |
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show_sas_phy_##name(struct device *dev, \ struct device_attribute *attr, char *buf) \ |
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{ \ |
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struct sas_phy *phy = transport_class_to_phy(dev); \ |
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\ return snprintf(buf, 20, format_string, cast phy->field); \ } #define sas_phy_simple_attr(field, name, format_string, type) \ sas_phy_show_simple(field, name, format_string, (type)) \ |
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static DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL) |
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#define sas_phy_show_protocol(field, name) \ static ssize_t \ |
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show_sas_phy_##name(struct device *dev, \ struct device_attribute *attr, char *buf) \ |
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{ \ |
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struct sas_phy *phy = transport_class_to_phy(dev); \ |
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\ if (!phy->field) \ return snprintf(buf, 20, "none "); \ return get_sas_protocol_names(phy->field, buf); \ } #define sas_phy_protocol_attr(field, name) \ sas_phy_show_protocol(field, name) \ |
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static DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL) |
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#define sas_phy_show_linkspeed(field) \ static ssize_t \ |
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show_sas_phy_##field(struct device *dev, \ struct device_attribute *attr, char *buf) \ |
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{ \ |
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struct sas_phy *phy = transport_class_to_phy(dev); \ |
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\ return get_sas_linkspeed_names(phy->field, buf); \ } |
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/* Fudge to tell if we're minimum or maximum */ #define sas_phy_store_linkspeed(field) \ static ssize_t \ |
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store_sas_phy_##field(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \ |
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{ \ |
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struct sas_phy *phy = transport_class_to_phy(dev); \ |
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struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); \ struct sas_internal *i = to_sas_internal(shost->transportt); \ u32 value; \ struct sas_phy_linkrates rates = {0}; \ int error; \ \ error = set_sas_linkspeed_names(&value, buf); \ if (error) \ return error; \ rates.field = value; \ error = i->f->set_phy_speed(phy, &rates); \ \ return error ? error : count; \ } #define sas_phy_linkspeed_rw_attr(field) \ sas_phy_show_linkspeed(field) \ sas_phy_store_linkspeed(field) \ |
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static DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, \ |
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store_sas_phy_##field) |
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#define sas_phy_linkspeed_attr(field) \ sas_phy_show_linkspeed(field) \ |
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static DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL) |
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#define sas_phy_show_linkerror(field) \ static ssize_t \ |
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show_sas_phy_##field(struct device *dev, \ struct device_attribute *attr, char *buf) \ |
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{ \ |
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struct sas_phy *phy = transport_class_to_phy(dev); \ |
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struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); \ struct sas_internal *i = to_sas_internal(shost->transportt); \ int error; \ \ |
dd9fbb521 [SCSI] make some ... |
508 |
error = i->f->get_linkerrors ? i->f->get_linkerrors(phy) : 0; \ |
c3ee74c4e [SCSI] scsi_trans... |
509 510 511 512 513 514 515 516 |
if (error) \ return error; \ return snprintf(buf, 20, "%u ", phy->field); \ } #define sas_phy_linkerror_attr(field) \ sas_phy_show_linkerror(field) \ |
ee959b00c SCSI: convert str... |
517 |
static DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL) |
c3ee74c4e [SCSI] scsi_trans... |
518 |
|
c7ebbbce3 [SCSI] SAS transp... |
519 |
static ssize_t |
ee959b00c SCSI: convert str... |
520 521 |
show_sas_device_type(struct device *dev, struct device_attribute *attr, char *buf) |
c7ebbbce3 [SCSI] SAS transp... |
522 |
{ |
ee959b00c SCSI: convert str... |
523 |
struct sas_phy *phy = transport_class_to_phy(dev); |
c7ebbbce3 [SCSI] SAS transp... |
524 525 526 527 528 529 |
if (!phy->identify.device_type) return snprintf(buf, 20, "none "); return get_sas_device_type_names(phy->identify.device_type, buf); } |
ee959b00c SCSI: convert str... |
530 |
static DEVICE_ATTR(device_type, S_IRUGO, show_sas_device_type, NULL); |
c7ebbbce3 [SCSI] SAS transp... |
531 |
|
ee959b00c SCSI: convert str... |
532 |
static ssize_t do_sas_phy_enable(struct device *dev, |
acbf167d4 [SCSI] libsas: Ad... |
533 534 |
size_t count, int enable) { |
ee959b00c SCSI: convert str... |
535 |
struct sas_phy *phy = transport_class_to_phy(dev); |
acbf167d4 [SCSI] libsas: Ad... |
536 537 538 539 540 541 542 543 544 545 |
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); struct sas_internal *i = to_sas_internal(shost->transportt); int error; error = i->f->phy_enable(phy, enable); if (error) return error; phy->enabled = enable; return count; }; |
ee959b00c SCSI: convert str... |
546 547 548 |
static ssize_t store_sas_phy_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
acbf167d4 [SCSI] libsas: Ad... |
549 550 551 552 553 554 |
{ if (count < 1) return -EINVAL; switch (buf[0]) { case '0': |
ee959b00c SCSI: convert str... |
555 |
do_sas_phy_enable(dev, count, 0); |
acbf167d4 [SCSI] libsas: Ad... |
556 557 |
break; case '1': |
ee959b00c SCSI: convert str... |
558 |
do_sas_phy_enable(dev, count, 1); |
acbf167d4 [SCSI] libsas: Ad... |
559 560 561 562 563 564 565 |
break; default: return -EINVAL; } return count; } |
ee959b00c SCSI: convert str... |
566 567 568 |
static ssize_t show_sas_phy_enable(struct device *dev, struct device_attribute *attr, char *buf) |
acbf167d4 [SCSI] libsas: Ad... |
569 |
{ |
ee959b00c SCSI: convert str... |
570 |
struct sas_phy *phy = transport_class_to_phy(dev); |
acbf167d4 [SCSI] libsas: Ad... |
571 572 573 |
return snprintf(buf, 20, "%d", phy->enabled); } |
ee959b00c SCSI: convert str... |
574 |
static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, show_sas_phy_enable, |
acbf167d4 [SCSI] libsas: Ad... |
575 |
store_sas_phy_enable); |
ee959b00c SCSI: convert str... |
576 577 |
static ssize_t do_sas_phy_reset(struct device *dev, size_t count, int hard_reset) |
07ba3a954 [SCSI] sas: add s... |
578 |
{ |
ee959b00c SCSI: convert str... |
579 |
struct sas_phy *phy = transport_class_to_phy(dev); |
07ba3a954 [SCSI] sas: add s... |
580 581 582 |
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); struct sas_internal *i = to_sas_internal(shost->transportt); int error; |
07ba3a954 [SCSI] sas: add s... |
583 584 585 |
error = i->f->phy_reset(phy, hard_reset); if (error) return error; |
16d3db1b2 [SCSI] scsi_trans... |
586 |
phy->enabled = 1; |
07ba3a954 [SCSI] sas: add s... |
587 588 |
return count; }; |
ee959b00c SCSI: convert str... |
589 590 591 |
static ssize_t store_sas_link_reset(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
07ba3a954 [SCSI] sas: add s... |
592 |
{ |
ee959b00c SCSI: convert str... |
593 |
return do_sas_phy_reset(dev, count, 0); |
07ba3a954 [SCSI] sas: add s... |
594 |
} |
ee959b00c SCSI: convert str... |
595 |
static DEVICE_ATTR(link_reset, S_IWUSR, NULL, store_sas_link_reset); |
07ba3a954 [SCSI] sas: add s... |
596 |
|
ee959b00c SCSI: convert str... |
597 598 599 |
static ssize_t store_sas_hard_reset(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
07ba3a954 [SCSI] sas: add s... |
600 |
{ |
ee959b00c SCSI: convert str... |
601 |
return do_sas_phy_reset(dev, count, 1); |
07ba3a954 [SCSI] sas: add s... |
602 |
} |
ee959b00c SCSI: convert str... |
603 |
static DEVICE_ATTR(hard_reset, S_IWUSR, NULL, store_sas_hard_reset); |
07ba3a954 [SCSI] sas: add s... |
604 |
|
c7ebbbce3 [SCSI] SAS transp... |
605 606 607 608 609 610 611 612 613 |
sas_phy_protocol_attr(identify.initiator_port_protocols, initiator_port_protocols); sas_phy_protocol_attr(identify.target_port_protocols, target_port_protocols); sas_phy_simple_attr(identify.sas_address, sas_address, "0x%016llx ", unsigned long long); sas_phy_simple_attr(identify.phy_identifier, phy_identifier, "%d ", u8); |
c9fefeb26 [SCSI] scsi_trans... |
614 615 |
//sas_phy_simple_attr(port_identifier, port_identifier, "%d ", int); |
c7ebbbce3 [SCSI] SAS transp... |
616 617 |
sas_phy_linkspeed_attr(negotiated_linkrate); sas_phy_linkspeed_attr(minimum_linkrate_hw); |
d24e1eeb3 [SCSI] scsi_trans... |
618 |
sas_phy_linkspeed_rw_attr(minimum_linkrate); |
c7ebbbce3 [SCSI] SAS transp... |
619 |
sas_phy_linkspeed_attr(maximum_linkrate_hw); |
d24e1eeb3 [SCSI] scsi_trans... |
620 |
sas_phy_linkspeed_rw_attr(maximum_linkrate); |
c3ee74c4e [SCSI] scsi_trans... |
621 622 623 624 |
sas_phy_linkerror_attr(invalid_dword_count); sas_phy_linkerror_attr(running_disparity_error_count); sas_phy_linkerror_attr(loss_of_dword_sync_count); sas_phy_linkerror_attr(phy_reset_problem_count); |
c7ebbbce3 [SCSI] SAS transp... |
625 |
|
0b3e09da1 [SCSI] libsas: pe... |
626 627 628 629 630 631 632 633 634 635 636 637 |
static int sas_phy_setup(struct transport_container *tc, struct device *dev, struct device *cdev) { struct sas_phy *phy = dev_to_phy(dev); struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); struct sas_internal *i = to_sas_internal(shost->transportt); if (i->f->phy_setup) i->f->phy_setup(phy); return 0; } |
c7ebbbce3 [SCSI] SAS transp... |
638 639 |
static DECLARE_TRANSPORT_CLASS(sas_phy_class, |
0b3e09da1 [SCSI] libsas: pe... |
640 |
"sas_phy", sas_phy_setup, NULL, NULL); |
c7ebbbce3 [SCSI] SAS transp... |
641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 |
static int sas_phy_match(struct attribute_container *cont, struct device *dev) { struct Scsi_Host *shost; struct sas_internal *i; if (!scsi_is_sas_phy(dev)) return 0; shost = dev_to_shost(dev->parent); if (!shost->transportt) return 0; if (shost->transportt->host_attrs.ac.class != &sas_host_class.class) return 0; i = to_sas_internal(shost->transportt); return &i->phy_attr_cont.ac == cont; } static void sas_phy_release(struct device *dev) { struct sas_phy *phy = dev_to_phy(dev); |
0b3e09da1 [SCSI] libsas: pe... |
664 665 |
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); struct sas_internal *i = to_sas_internal(shost->transportt); |
c7ebbbce3 [SCSI] SAS transp... |
666 |
|
0b3e09da1 [SCSI] libsas: pe... |
667 668 |
if (i->f->phy_release) i->f->phy_release(phy); |
c7ebbbce3 [SCSI] SAS transp... |
669 670 671 672 673 |
put_device(dev->parent); kfree(phy); } /** |
eb44820c2 [SCSI] Add Docume... |
674 |
* sas_phy_alloc - allocates and initialize a SAS PHY structure |
c7ebbbce3 [SCSI] SAS transp... |
675 |
* @parent: Parent device |
d99ca4180 [SCSI] scsi_trans... |
676 |
* @number: Phy index |
c7ebbbce3 [SCSI] SAS transp... |
677 678 679 680 681 682 683 684 685 686 687 688 |
* * Allocates an SAS PHY structure. It will be added in the device tree * below the device specified by @parent, which has to be either a Scsi_Host * or sas_rphy. * * Returns: * SAS PHY allocated or %NULL if the allocation failed. */ struct sas_phy *sas_phy_alloc(struct device *parent, int number) { struct Scsi_Host *shost = dev_to_shost(parent); struct sas_phy *phy; |
24669f75a [SCSI] SCSI core ... |
689 |
phy = kzalloc(sizeof(*phy), GFP_KERNEL); |
c7ebbbce3 [SCSI] SAS transp... |
690 691 |
if (!phy) return NULL; |
c7ebbbce3 [SCSI] SAS transp... |
692 |
|
c7ebbbce3 [SCSI] SAS transp... |
693 |
phy->number = number; |
acbf167d4 [SCSI] libsas: Ad... |
694 |
phy->enabled = 1; |
c7ebbbce3 [SCSI] SAS transp... |
695 696 697 698 |
device_initialize(&phy->dev); phy->dev.parent = get_device(parent); phy->dev.release = sas_phy_release; |
65c92b09a [SCSI] scsi_trans... |
699 |
INIT_LIST_HEAD(&phy->port_siblings); |
79cb1819e [SCSI] add prelim... |
700 701 |
if (scsi_is_sas_expander_device(parent)) { struct sas_rphy *rphy = dev_to_rphy(parent); |
71610f55f [SCSI] struct dev... |
702 |
dev_set_name(&phy->dev, "phy-%d:%d:%d", shost->host_no, |
79cb1819e [SCSI] add prelim... |
703 704 |
rphy->scsi_target_id, number); } else |
71610f55f [SCSI] struct dev... |
705 |
dev_set_name(&phy->dev, "phy-%d:%d", shost->host_no, number); |
c7ebbbce3 [SCSI] SAS transp... |
706 707 708 709 710 711 712 713 |
transport_setup_device(&phy->dev); return phy; } EXPORT_SYMBOL(sas_phy_alloc); /** |
eb44820c2 [SCSI] Add Docume... |
714 |
* sas_phy_add - add a SAS PHY to the device hierarchy |
c7ebbbce3 [SCSI] SAS transp... |
715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 |
* @phy: The PHY to be added * * Publishes a SAS PHY to the rest of the system. */ int sas_phy_add(struct sas_phy *phy) { int error; error = device_add(&phy->dev); if (!error) { transport_add_device(&phy->dev); transport_configure_device(&phy->dev); } return error; } EXPORT_SYMBOL(sas_phy_add); /** |
eb44820c2 [SCSI] Add Docume... |
734 |
* sas_phy_free - free a SAS PHY |
c7ebbbce3 [SCSI] SAS transp... |
735 736 737 738 739 740 |
* @phy: SAS PHY to free * * Frees the specified SAS PHY. * * Note: * This function must only be called on a PHY that has not |
af901ca18 tree-wide: fix as... |
741 |
* successfully been added using sas_phy_add(). |
c7ebbbce3 [SCSI] SAS transp... |
742 743 744 745 |
*/ void sas_phy_free(struct sas_phy *phy) { transport_destroy_device(&phy->dev); |
92aab6464 [SCSI] sas transp... |
746 |
put_device(&phy->dev); |
c7ebbbce3 [SCSI] SAS transp... |
747 748 749 750 |
} EXPORT_SYMBOL(sas_phy_free); /** |
eb44820c2 [SCSI] Add Docume... |
751 |
* sas_phy_delete - remove SAS PHY |
c7ebbbce3 [SCSI] SAS transp... |
752 753 754 755 756 757 758 759 760 |
* @phy: SAS PHY to remove * * Removes the specified SAS PHY. If the SAS PHY has an * associated remote PHY it is removed before. */ void sas_phy_delete(struct sas_phy *phy) { struct device *dev = &phy->dev; |
65c92b09a [SCSI] scsi_trans... |
761 762 |
/* this happens if the phy is still part of a port when deleted */ BUG_ON(!list_empty(&phy->port_siblings)); |
c7ebbbce3 [SCSI] SAS transp... |
763 764 765 766 |
transport_remove_device(dev); device_del(dev); transport_destroy_device(dev); |
92aab6464 [SCSI] sas transp... |
767 |
put_device(dev); |
c7ebbbce3 [SCSI] SAS transp... |
768 769 770 771 |
} EXPORT_SYMBOL(sas_phy_delete); /** |
eb44820c2 [SCSI] Add Docume... |
772 |
* scsi_is_sas_phy - check if a struct device represents a SAS PHY |
c7ebbbce3 [SCSI] SAS transp... |
773 774 775 776 777 778 779 780 781 782 783 784 |
* @dev: device to check * * Returns: * %1 if the device represents a SAS PHY, %0 else */ int scsi_is_sas_phy(const struct device *dev) { return dev->release == sas_phy_release; } EXPORT_SYMBOL(scsi_is_sas_phy); /* |
65c92b09a [SCSI] scsi_trans... |
785 786 787 788 |
* SAS Port attributes */ #define sas_port_show_simple(field, name, format_string, cast) \ static ssize_t \ |
ee959b00c SCSI: convert str... |
789 790 |
show_sas_port_##name(struct device *dev, \ struct device_attribute *attr, char *buf) \ |
65c92b09a [SCSI] scsi_trans... |
791 |
{ \ |
ee959b00c SCSI: convert str... |
792 |
struct sas_port *port = transport_class_to_sas_port(dev); \ |
65c92b09a [SCSI] scsi_trans... |
793 794 795 796 797 798 |
\ return snprintf(buf, 20, format_string, cast port->field); \ } #define sas_port_simple_attr(field, name, format_string, type) \ sas_port_show_simple(field, name, format_string, (type)) \ |
ee959b00c SCSI: convert str... |
799 |
static DEVICE_ATTR(name, S_IRUGO, show_sas_port_##name, NULL) |
65c92b09a [SCSI] scsi_trans... |
800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 |
sas_port_simple_attr(num_phys, num_phys, "%d ", int); static DECLARE_TRANSPORT_CLASS(sas_port_class, "sas_port", NULL, NULL, NULL); static int sas_port_match(struct attribute_container *cont, struct device *dev) { struct Scsi_Host *shost; struct sas_internal *i; if (!scsi_is_sas_port(dev)) return 0; shost = dev_to_shost(dev->parent); if (!shost->transportt) return 0; if (shost->transportt->host_attrs.ac.class != &sas_host_class.class) return 0; i = to_sas_internal(shost->transportt); return &i->port_attr_cont.ac == cont; } static void sas_port_release(struct device *dev) { struct sas_port *port = dev_to_sas_port(dev); BUG_ON(!list_empty(&port->phy_list)); put_device(dev->parent); kfree(port); } static void sas_port_create_link(struct sas_port *port, struct sas_phy *phy) { |
214349664 [SCSI] libsas: Ch... |
840 841 842 |
int res; res = sysfs_create_link(&port->dev.kobj, &phy->dev.kobj, |
71610f55f [SCSI] struct dev... |
843 |
dev_name(&phy->dev)); |
214349664 [SCSI] libsas: Ch... |
844 845 846 847 848 849 850 851 852 |
if (res) goto err; res = sysfs_create_link(&phy->dev.kobj, &port->dev.kobj, "port"); if (res) goto err; return; err: printk(KERN_ERR "%s: Cannot create port links, err=%d ", |
cadbd4a5e [SCSI] replace __... |
853 |
__func__, res); |
65c92b09a [SCSI] scsi_trans... |
854 855 856 857 858 |
} static void sas_port_delete_link(struct sas_port *port, struct sas_phy *phy) { |
71610f55f [SCSI] struct dev... |
859 |
sysfs_remove_link(&port->dev.kobj, dev_name(&phy->dev)); |
65c92b09a [SCSI] scsi_trans... |
860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 |
sysfs_remove_link(&phy->dev.kobj, "port"); } /** sas_port_alloc - allocate and initialize a SAS port structure * * @parent: parent device * @port_id: port number * * Allocates a SAS port structure. It will be added to the device tree * below the device specified by @parent which must be either a Scsi_Host * or a sas_expander_device. * * Returns %NULL on error */ struct sas_port *sas_port_alloc(struct device *parent, int port_id) { struct Scsi_Host *shost = dev_to_shost(parent); struct sas_port *port; port = kzalloc(sizeof(*port), GFP_KERNEL); if (!port) return NULL; port->port_identifier = port_id; device_initialize(&port->dev); port->dev.parent = get_device(parent); port->dev.release = sas_port_release; mutex_init(&port->phy_list_mutex); INIT_LIST_HEAD(&port->phy_list); if (scsi_is_sas_expander_device(parent)) { struct sas_rphy *rphy = dev_to_rphy(parent); |
71610f55f [SCSI] struct dev... |
895 896 |
dev_set_name(&port->dev, "port-%d:%d:%d", shost->host_no, rphy->scsi_target_id, port->port_identifier); |
65c92b09a [SCSI] scsi_trans... |
897 |
} else |
71610f55f [SCSI] struct dev... |
898 899 |
dev_set_name(&port->dev, "port-%d:%d", shost->host_no, port->port_identifier); |
65c92b09a [SCSI] scsi_trans... |
900 901 902 903 904 905 |
transport_setup_device(&port->dev); return port; } EXPORT_SYMBOL(sas_port_alloc); |
c9fefeb26 [SCSI] scsi_trans... |
906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 |
/** sas_port_alloc_num - allocate and initialize a SAS port structure * * @parent: parent device * * Allocates a SAS port structure and a number to go with it. This * interface is really for adapters where the port number has no * meansing, so the sas class should manage them. It will be added to * the device tree below the device specified by @parent which must be * either a Scsi_Host or a sas_expander_device. * * Returns %NULL on error */ struct sas_port *sas_port_alloc_num(struct device *parent) { int index; struct Scsi_Host *shost = dev_to_shost(parent); struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); /* FIXME: use idr for this eventually */ mutex_lock(&sas_host->lock); if (scsi_is_sas_expander_device(parent)) { struct sas_rphy *rphy = dev_to_rphy(parent); struct sas_expander_device *exp = rphy_to_expander_device(rphy); index = exp->next_port_id++; } else index = sas_host->next_port_id++; mutex_unlock(&sas_host->lock); return sas_port_alloc(parent, index); } EXPORT_SYMBOL(sas_port_alloc_num); |
65c92b09a [SCSI] scsi_trans... |
937 938 |
/** * sas_port_add - add a SAS port to the device hierarchy |
65c92b09a [SCSI] scsi_trans... |
939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 |
* @port: port to be added * * publishes a port to the rest of the system */ int sas_port_add(struct sas_port *port) { int error; /* No phys should be added until this is made visible */ BUG_ON(!list_empty(&port->phy_list)); error = device_add(&port->dev); if (error) return error; transport_add_device(&port->dev); transport_configure_device(&port->dev); return 0; } EXPORT_SYMBOL(sas_port_add); /** |
eb44820c2 [SCSI] Add Docume... |
963 |
* sas_port_free - free a SAS PORT |
65c92b09a [SCSI] scsi_trans... |
964 965 966 967 968 969 |
* @port: SAS PORT to free * * Frees the specified SAS PORT. * * Note: * This function must only be called on a PORT that has not |
af901ca18 tree-wide: fix as... |
970 |
* successfully been added using sas_port_add(). |
65c92b09a [SCSI] scsi_trans... |
971 972 973 974 975 976 977 978 979 |
*/ void sas_port_free(struct sas_port *port) { transport_destroy_device(&port->dev); put_device(&port->dev); } EXPORT_SYMBOL(sas_port_free); /** |
eb44820c2 [SCSI] Add Docume... |
980 |
* sas_port_delete - remove SAS PORT |
65c92b09a [SCSI] scsi_trans... |
981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 |
* @port: SAS PORT to remove * * Removes the specified SAS PORT. If the SAS PORT has an * associated phys, unlink them from the port as well. */ void sas_port_delete(struct sas_port *port) { struct device *dev = &port->dev; struct sas_phy *phy, *tmp_phy; if (port->rphy) { sas_rphy_delete(port->rphy); port->rphy = NULL; } mutex_lock(&port->phy_list_mutex); list_for_each_entry_safe(phy, tmp_phy, &port->phy_list, port_siblings) { sas_port_delete_link(port, phy); list_del_init(&phy->port_siblings); } mutex_unlock(&port->phy_list_mutex); |
a0e1b6ef3 [SCSI] scsi_trans... |
1003 1004 |
if (port->is_backlink) { struct device *parent = port->dev.parent; |
71610f55f [SCSI] struct dev... |
1005 |
sysfs_remove_link(&port->dev.kobj, dev_name(parent)); |
a0e1b6ef3 [SCSI] scsi_trans... |
1006 1007 |
port->is_backlink = 0; } |
65c92b09a [SCSI] scsi_trans... |
1008 1009 1010 1011 1012 1013 1014 1015 |
transport_remove_device(dev); device_del(dev); transport_destroy_device(dev); put_device(dev); } EXPORT_SYMBOL(sas_port_delete); /** |
eb44820c2 [SCSI] Add Docume... |
1016 |
* scsi_is_sas_port - check if a struct device represents a SAS port |
65c92b09a [SCSI] scsi_trans... |
1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 |
* @dev: device to check * * Returns: * %1 if the device represents a SAS Port, %0 else */ int scsi_is_sas_port(const struct device *dev) { return dev->release == sas_port_release; } EXPORT_SYMBOL(scsi_is_sas_port); /** |
f41a0c441 [SCSI] libsas: fi... |
1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 |
* sas_port_get_phy - try to take a reference on a port member * @port: port to check */ struct sas_phy *sas_port_get_phy(struct sas_port *port) { struct sas_phy *phy; mutex_lock(&port->phy_list_mutex); if (list_empty(&port->phy_list)) phy = NULL; else { struct list_head *ent = port->phy_list.next; phy = list_entry(ent, typeof(*phy), port_siblings); get_device(&phy->dev); } mutex_unlock(&port->phy_list_mutex); return phy; } EXPORT_SYMBOL(sas_port_get_phy); /** |
65c92b09a [SCSI] scsi_trans... |
1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 |
* sas_port_add_phy - add another phy to a port to form a wide port * @port: port to add the phy to * @phy: phy to add * * When a port is initially created, it is empty (has no phys). All * ports must have at least one phy to operated, and all wide ports * must have at least two. The current code makes no difference * between ports and wide ports, but the only object that can be * connected to a remote device is a port, so ports must be formed on * all devices with phys if they're connected to anything. */ void sas_port_add_phy(struct sas_port *port, struct sas_phy *phy) { mutex_lock(&port->phy_list_mutex); if (unlikely(!list_empty(&phy->port_siblings))) { /* make sure we're already on this port */ struct sas_phy *tmp; list_for_each_entry(tmp, &port->phy_list, port_siblings) if (tmp == phy) break; /* If this trips, you added a phy that was already * part of a different port */ if (unlikely(tmp != phy)) { |
71610f55f [SCSI] struct dev... |
1076 1077 1078 |
dev_printk(KERN_ERR, &port->dev, "trying to add phy %s fails: it's already part of another port ", dev_name(&phy->dev)); |
65c92b09a [SCSI] scsi_trans... |
1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 |
BUG(); } } else { sas_port_create_link(port, phy); list_add_tail(&phy->port_siblings, &port->phy_list); port->num_phys++; } mutex_unlock(&port->phy_list_mutex); } EXPORT_SYMBOL(sas_port_add_phy); /** * sas_port_delete_phy - remove a phy from a port or wide port * @port: port to remove the phy from * @phy: phy to remove * * This operation is used for tearing down ports again. It must be * done to every port or wide port before calling sas_port_delete. */ void sas_port_delete_phy(struct sas_port *port, struct sas_phy *phy) { mutex_lock(&port->phy_list_mutex); sas_port_delete_link(port, phy); list_del_init(&phy->port_siblings); port->num_phys--; mutex_unlock(&port->phy_list_mutex); } EXPORT_SYMBOL(sas_port_delete_phy); |
a0e1b6ef3 [SCSI] scsi_trans... |
1107 1108 |
void sas_port_mark_backlink(struct sas_port *port) { |
214349664 [SCSI] libsas: Ch... |
1109 |
int res; |
a0e1b6ef3 [SCSI] scsi_trans... |
1110 1111 1112 1113 1114 |
struct device *parent = port->dev.parent->parent->parent; if (port->is_backlink) return; port->is_backlink = 1; |
214349664 [SCSI] libsas: Ch... |
1115 |
res = sysfs_create_link(&port->dev.kobj, &parent->kobj, |
71610f55f [SCSI] struct dev... |
1116 |
dev_name(parent)); |
214349664 [SCSI] libsas: Ch... |
1117 1118 1119 1120 1121 1122 |
if (res) goto err; return; err: printk(KERN_ERR "%s: Cannot create port backlink, err=%d ", |
cadbd4a5e [SCSI] replace __... |
1123 |
__func__, res); |
a0e1b6ef3 [SCSI] scsi_trans... |
1124 1125 1126 |
} EXPORT_SYMBOL(sas_port_mark_backlink); |
65c92b09a [SCSI] scsi_trans... |
1127 |
/* |
c7ebbbce3 [SCSI] SAS transp... |
1128 1129 1130 1131 1132 |
* SAS remote PHY attributes. */ #define sas_rphy_show_simple(field, name, format_string, cast) \ static ssize_t \ |
ee959b00c SCSI: convert str... |
1133 1134 |
show_sas_rphy_##name(struct device *dev, \ struct device_attribute *attr, char *buf) \ |
c7ebbbce3 [SCSI] SAS transp... |
1135 |
{ \ |
ee959b00c SCSI: convert str... |
1136 |
struct sas_rphy *rphy = transport_class_to_rphy(dev); \ |
c7ebbbce3 [SCSI] SAS transp... |
1137 1138 1139 1140 1141 1142 |
\ return snprintf(buf, 20, format_string, cast rphy->field); \ } #define sas_rphy_simple_attr(field, name, format_string, type) \ sas_rphy_show_simple(field, name, format_string, (type)) \ |
ee959b00c SCSI: convert str... |
1143 |
static SAS_DEVICE_ATTR(rphy, name, S_IRUGO, \ |
c7ebbbce3 [SCSI] SAS transp... |
1144 1145 1146 1147 |
show_sas_rphy_##name, NULL) #define sas_rphy_show_protocol(field, name) \ static ssize_t \ |
ee959b00c SCSI: convert str... |
1148 1149 |
show_sas_rphy_##name(struct device *dev, \ struct device_attribute *attr, char *buf) \ |
c7ebbbce3 [SCSI] SAS transp... |
1150 |
{ \ |
ee959b00c SCSI: convert str... |
1151 |
struct sas_rphy *rphy = transport_class_to_rphy(dev); \ |
c7ebbbce3 [SCSI] SAS transp... |
1152 1153 1154 1155 1156 1157 1158 1159 1160 |
\ if (!rphy->field) \ return snprintf(buf, 20, "none "); \ return get_sas_protocol_names(rphy->field, buf); \ } #define sas_rphy_protocol_attr(field, name) \ sas_rphy_show_protocol(field, name) \ |
ee959b00c SCSI: convert str... |
1161 |
static SAS_DEVICE_ATTR(rphy, name, S_IRUGO, \ |
c7ebbbce3 [SCSI] SAS transp... |
1162 1163 1164 |
show_sas_rphy_##name, NULL) static ssize_t |
ee959b00c SCSI: convert str... |
1165 1166 |
show_sas_rphy_device_type(struct device *dev, struct device_attribute *attr, char *buf) |
c7ebbbce3 [SCSI] SAS transp... |
1167 |
{ |
ee959b00c SCSI: convert str... |
1168 |
struct sas_rphy *rphy = transport_class_to_rphy(dev); |
c7ebbbce3 [SCSI] SAS transp... |
1169 1170 1171 1172 1173 1174 1175 |
if (!rphy->identify.device_type) return snprintf(buf, 20, "none "); return get_sas_device_type_names( rphy->identify.device_type, buf); } |
ee959b00c SCSI: convert str... |
1176 |
static SAS_DEVICE_ATTR(rphy, device_type, S_IRUGO, |
c7ebbbce3 [SCSI] SAS transp... |
1177 |
show_sas_rphy_device_type, NULL); |
a01256413 [SCSI] sas: add s... |
1178 |
static ssize_t |
ee959b00c SCSI: convert str... |
1179 1180 |
show_sas_rphy_enclosure_identifier(struct device *dev, struct device_attribute *attr, char *buf) |
a01256413 [SCSI] sas: add s... |
1181 |
{ |
ee959b00c SCSI: convert str... |
1182 |
struct sas_rphy *rphy = transport_class_to_rphy(dev); |
a01256413 [SCSI] sas: add s... |
1183 1184 1185 1186 1187 |
struct sas_phy *phy = dev_to_phy(rphy->dev.parent); struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); struct sas_internal *i = to_sas_internal(shost->transportt); u64 identifier; int error; |
a01256413 [SCSI] sas: add s... |
1188 1189 1190 1191 1192 1193 |
error = i->f->get_enclosure_identifier(rphy, &identifier); if (error) return error; return sprintf(buf, "0x%llx ", (unsigned long long)identifier); } |
ee959b00c SCSI: convert str... |
1194 |
static SAS_DEVICE_ATTR(rphy, enclosure_identifier, S_IRUGO, |
a01256413 [SCSI] sas: add s... |
1195 1196 1197 |
show_sas_rphy_enclosure_identifier, NULL); static ssize_t |
ee959b00c SCSI: convert str... |
1198 1199 |
show_sas_rphy_bay_identifier(struct device *dev, struct device_attribute *attr, char *buf) |
a01256413 [SCSI] sas: add s... |
1200 |
{ |
ee959b00c SCSI: convert str... |
1201 |
struct sas_rphy *rphy = transport_class_to_rphy(dev); |
a01256413 [SCSI] sas: add s... |
1202 1203 1204 1205 |
struct sas_phy *phy = dev_to_phy(rphy->dev.parent); struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); struct sas_internal *i = to_sas_internal(shost->transportt); int val; |
a01256413 [SCSI] sas: add s... |
1206 1207 1208 1209 1210 1211 |
val = i->f->get_bay_identifier(rphy); if (val < 0) return val; return sprintf(buf, "%d ", val); } |
ee959b00c SCSI: convert str... |
1212 |
static SAS_DEVICE_ATTR(rphy, bay_identifier, S_IRUGO, |
a01256413 [SCSI] sas: add s... |
1213 |
show_sas_rphy_bay_identifier, NULL); |
c7ebbbce3 [SCSI] SAS transp... |
1214 1215 1216 1217 1218 1219 1220 1221 |
sas_rphy_protocol_attr(identify.initiator_port_protocols, initiator_port_protocols); sas_rphy_protocol_attr(identify.target_port_protocols, target_port_protocols); sas_rphy_simple_attr(identify.sas_address, sas_address, "0x%016llx ", unsigned long long); sas_rphy_simple_attr(identify.phy_identifier, phy_identifier, "%d ", u8); |
cdc43ae34 scsi_transport_sa... |
1222 1223 |
sas_rphy_simple_attr(scsi_target_id, scsi_target_id, "%d ", u32); |
c7ebbbce3 [SCSI] SAS transp... |
1224 |
|
42ab03609 [PATCH] convert a... |
1225 1226 1227 1228 1229 1230 |
/* only need 8 bytes of data plus header (4 or 8) */ #define BUF_SIZE 64 int sas_read_port_mode_page(struct scsi_device *sdev) { char *buffer = kzalloc(BUF_SIZE, GFP_KERNEL), *msdata; |
0f88009d5 [SCSI] scsi_trans... |
1231 |
struct sas_end_device *rdev = sas_sdev_to_rdev(sdev); |
42ab03609 [PATCH] convert a... |
1232 1233 |
struct scsi_mode_data mode_data; int res, error; |
42ab03609 [PATCH] convert a... |
1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 |
if (!buffer) return -ENOMEM; res = scsi_mode_sense(sdev, 1, 0x19, buffer, BUF_SIZE, 30*HZ, 3, &mode_data, NULL); error = -EINVAL; if (!scsi_status_is_good(res)) goto out; msdata = buffer + mode_data.header_length + mode_data.block_descriptor_length; if (msdata - buffer > BUF_SIZE - 8) goto out; error = 0; rdev->ready_led_meaning = msdata[2] & 0x10 ? 1 : 0; rdev->I_T_nexus_loss_timeout = (msdata[4] << 8) + msdata[5]; rdev->initiator_response_timeout = (msdata[6] << 8) + msdata[7]; out: kfree(buffer); return error; } EXPORT_SYMBOL(sas_read_port_mode_page); |
79cb1819e [SCSI] add prelim... |
1261 1262 |
static DECLARE_TRANSPORT_CLASS(sas_end_dev_class, "sas_end_device", NULL, NULL, NULL); |
42ab03609 [PATCH] convert a... |
1263 1264 |
#define sas_end_dev_show_simple(field, name, format_string, cast) \ static ssize_t \ |
ee959b00c SCSI: convert str... |
1265 1266 |
show_sas_end_dev_##name(struct device *dev, \ struct device_attribute *attr, char *buf) \ |
42ab03609 [PATCH] convert a... |
1267 |
{ \ |
ee959b00c SCSI: convert str... |
1268 |
struct sas_rphy *rphy = transport_class_to_rphy(dev); \ |
42ab03609 [PATCH] convert a... |
1269 1270 1271 1272 1273 1274 1275 |
struct sas_end_device *rdev = rphy_to_end_device(rphy); \ \ return snprintf(buf, 20, format_string, cast rdev->field); \ } #define sas_end_dev_simple_attr(field, name, format_string, type) \ sas_end_dev_show_simple(field, name, format_string, (type)) \ |
ee959b00c SCSI: convert str... |
1276 |
static SAS_DEVICE_ATTR(end_dev, name, S_IRUGO, \ |
42ab03609 [PATCH] convert a... |
1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 |
show_sas_end_dev_##name, NULL) sas_end_dev_simple_attr(ready_led_meaning, ready_led_meaning, "%d ", int); sas_end_dev_simple_attr(I_T_nexus_loss_timeout, I_T_nexus_loss_timeout, "%d ", int); sas_end_dev_simple_attr(initiator_response_timeout, initiator_response_timeout, "%d ", int); |
0f88009d5 [SCSI] scsi_trans... |
1287 1288 1289 1290 1291 1292 |
sas_end_dev_simple_attr(tlr_supported, tlr_supported, "%d ", int); sas_end_dev_simple_attr(tlr_enabled, tlr_enabled, "%d ", int); |
42ab03609 [PATCH] convert a... |
1293 |
|
79cb1819e [SCSI] add prelim... |
1294 1295 1296 1297 1298 |
static DECLARE_TRANSPORT_CLASS(sas_expander_class, "sas_expander", NULL, NULL, NULL); #define sas_expander_show_simple(field, name, format_string, cast) \ static ssize_t \ |
ee959b00c SCSI: convert str... |
1299 1300 |
show_sas_expander_##name(struct device *dev, \ struct device_attribute *attr, char *buf) \ |
79cb1819e [SCSI] add prelim... |
1301 |
{ \ |
ee959b00c SCSI: convert str... |
1302 |
struct sas_rphy *rphy = transport_class_to_rphy(dev); \ |
79cb1819e [SCSI] add prelim... |
1303 1304 1305 1306 1307 1308 1309 |
struct sas_expander_device *edev = rphy_to_expander_device(rphy); \ \ return snprintf(buf, 20, format_string, cast edev->field); \ } #define sas_expander_simple_attr(field, name, format_string, type) \ sas_expander_show_simple(field, name, format_string, (type)) \ |
ee959b00c SCSI: convert str... |
1310 |
static SAS_DEVICE_ATTR(expander, name, S_IRUGO, \ |
79cb1819e [SCSI] add prelim... |
1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 |
show_sas_expander_##name, NULL) sas_expander_simple_attr(vendor_id, vendor_id, "%s ", char *); sas_expander_simple_attr(product_id, product_id, "%s ", char *); sas_expander_simple_attr(product_rev, product_rev, "%s ", char *); sas_expander_simple_attr(component_vendor_id, component_vendor_id, "%s ", char *); sas_expander_simple_attr(component_id, component_id, "%u ", unsigned int); sas_expander_simple_attr(component_revision_id, component_revision_id, "%u ", unsigned int); sas_expander_simple_attr(level, level, "%d ", int); |
42ab03609 [PATCH] convert a... |
1329 |
|
c7ebbbce3 [SCSI] SAS transp... |
1330 |
static DECLARE_TRANSPORT_CLASS(sas_rphy_class, |
2f8600dff [SCSI] eliminate ... |
1331 |
"sas_device", NULL, NULL, NULL); |
c7ebbbce3 [SCSI] SAS transp... |
1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 |
static int sas_rphy_match(struct attribute_container *cont, struct device *dev) { struct Scsi_Host *shost; struct sas_internal *i; if (!scsi_is_sas_rphy(dev)) return 0; shost = dev_to_shost(dev->parent->parent); if (!shost->transportt) return 0; if (shost->transportt->host_attrs.ac.class != &sas_host_class.class) return 0; i = to_sas_internal(shost->transportt); return &i->rphy_attr_cont.ac == cont; } |
42ab03609 [PATCH] convert a... |
1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 |
static int sas_end_dev_match(struct attribute_container *cont, struct device *dev) { struct Scsi_Host *shost; struct sas_internal *i; struct sas_rphy *rphy; if (!scsi_is_sas_rphy(dev)) return 0; shost = dev_to_shost(dev->parent->parent); rphy = dev_to_rphy(dev); if (!shost->transportt) return 0; if (shost->transportt->host_attrs.ac.class != &sas_host_class.class) return 0; i = to_sas_internal(shost->transportt); return &i->end_dev_attr_cont.ac == cont && |
2f8600dff [SCSI] eliminate ... |
1371 |
rphy->identify.device_type == SAS_END_DEVICE; |
42ab03609 [PATCH] convert a... |
1372 |
} |
79cb1819e [SCSI] add prelim... |
1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 |
static int sas_expander_match(struct attribute_container *cont, struct device *dev) { struct Scsi_Host *shost; struct sas_internal *i; struct sas_rphy *rphy; if (!scsi_is_sas_rphy(dev)) return 0; shost = dev_to_shost(dev->parent->parent); rphy = dev_to_rphy(dev); if (!shost->transportt) return 0; if (shost->transportt->host_attrs.ac.class != &sas_host_class.class) return 0; i = to_sas_internal(shost->transportt); return &i->expander_attr_cont.ac == cont && (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE || |
2f8600dff [SCSI] eliminate ... |
1394 |
rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE); |
79cb1819e [SCSI] add prelim... |
1395 |
} |
2f8600dff [SCSI] eliminate ... |
1396 |
static void sas_expander_release(struct device *dev) |
c7ebbbce3 [SCSI] SAS transp... |
1397 1398 |
{ struct sas_rphy *rphy = dev_to_rphy(dev); |
2f8600dff [SCSI] eliminate ... |
1399 |
struct sas_expander_device *edev = rphy_to_expander_device(rphy); |
c7ebbbce3 [SCSI] SAS transp... |
1400 |
|
93c20a59a [SCSI] scsi_trans... |
1401 1402 |
if (rphy->q) blk_cleanup_queue(rphy->q); |
c7ebbbce3 [SCSI] SAS transp... |
1403 |
put_device(dev->parent); |
2f8600dff [SCSI] eliminate ... |
1404 |
kfree(edev); |
c7ebbbce3 [SCSI] SAS transp... |
1405 |
} |
2f8600dff [SCSI] eliminate ... |
1406 |
static void sas_end_device_release(struct device *dev) |
c7ebbbce3 [SCSI] SAS transp... |
1407 |
{ |
2f8600dff [SCSI] eliminate ... |
1408 1409 |
struct sas_rphy *rphy = dev_to_rphy(dev); struct sas_end_device *edev = rphy_to_end_device(rphy); |
c7ebbbce3 [SCSI] SAS transp... |
1410 |
|
93c20a59a [SCSI] scsi_trans... |
1411 1412 |
if (rphy->q) blk_cleanup_queue(rphy->q); |
2f8600dff [SCSI] eliminate ... |
1413 1414 |
put_device(dev->parent); kfree(edev); |
c7ebbbce3 [SCSI] SAS transp... |
1415 |
} |
c7ebbbce3 [SCSI] SAS transp... |
1416 1417 |
/** |
183b8021f scripts/spelling.... |
1418 |
* sas_rphy_initialize - common rphy initialization |
c5943d36a [SCSI] scsi_trans... |
1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 |
* @rphy: rphy to initialise * * Used by both sas_end_device_alloc() and sas_expander_alloc() to * initialise the common rphy component of each. */ static void sas_rphy_initialize(struct sas_rphy *rphy) { INIT_LIST_HEAD(&rphy->list); } /** |
42ab03609 [PATCH] convert a... |
1430 |
* sas_end_device_alloc - allocate an rphy for an end device |
eb44820c2 [SCSI] Add Docume... |
1431 |
* @parent: which port |
42ab03609 [PATCH] convert a... |
1432 1433 1434 1435 1436 1437 |
* * Allocates an SAS remote PHY structure, connected to @parent. * * Returns: * SAS PHY allocated or %NULL if the allocation failed. */ |
65c92b09a [SCSI] scsi_trans... |
1438 |
struct sas_rphy *sas_end_device_alloc(struct sas_port *parent) |
42ab03609 [PATCH] convert a... |
1439 1440 1441 1442 1443 1444 |
{ struct Scsi_Host *shost = dev_to_shost(&parent->dev); struct sas_end_device *rdev; rdev = kzalloc(sizeof(*rdev), GFP_KERNEL); if (!rdev) { |
42ab03609 [PATCH] convert a... |
1445 1446 1447 1448 1449 |
return NULL; } device_initialize(&rdev->rphy.dev); rdev->rphy.dev.parent = get_device(&parent->dev); |
2f8600dff [SCSI] eliminate ... |
1450 |
rdev->rphy.dev.release = sas_end_device_release; |
65c92b09a [SCSI] scsi_trans... |
1451 1452 |
if (scsi_is_sas_expander_device(parent->dev.parent)) { struct sas_rphy *rphy = dev_to_rphy(parent->dev.parent); |
71610f55f [SCSI] struct dev... |
1453 1454 1455 |
dev_set_name(&rdev->rphy.dev, "end_device-%d:%d:%d", shost->host_no, rphy->scsi_target_id, parent->port_identifier); |
65c92b09a [SCSI] scsi_trans... |
1456 |
} else |
71610f55f [SCSI] struct dev... |
1457 1458 |
dev_set_name(&rdev->rphy.dev, "end_device-%d:%d", shost->host_no, parent->port_identifier); |
42ab03609 [PATCH] convert a... |
1459 |
rdev->rphy.identify.device_type = SAS_END_DEVICE; |
c5943d36a [SCSI] scsi_trans... |
1460 |
sas_rphy_initialize(&rdev->rphy); |
42ab03609 [PATCH] convert a... |
1461 1462 1463 1464 1465 |
transport_setup_device(&rdev->rphy.dev); return &rdev->rphy; } EXPORT_SYMBOL(sas_end_device_alloc); |
79cb1819e [SCSI] add prelim... |
1466 1467 |
/** * sas_expander_alloc - allocate an rphy for an end device |
eb44820c2 [SCSI] Add Docume... |
1468 1469 |
* @parent: which port * @type: SAS_EDGE_EXPANDER_DEVICE or SAS_FANOUT_EXPANDER_DEVICE |
79cb1819e [SCSI] add prelim... |
1470 1471 1472 1473 1474 1475 |
* * Allocates an SAS remote PHY structure, connected to @parent. * * Returns: * SAS PHY allocated or %NULL if the allocation failed. */ |
65c92b09a [SCSI] scsi_trans... |
1476 |
struct sas_rphy *sas_expander_alloc(struct sas_port *parent, |
79cb1819e [SCSI] add prelim... |
1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 |
enum sas_device_type type) { struct Scsi_Host *shost = dev_to_shost(&parent->dev); struct sas_expander_device *rdev; struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); BUG_ON(type != SAS_EDGE_EXPANDER_DEVICE && type != SAS_FANOUT_EXPANDER_DEVICE); rdev = kzalloc(sizeof(*rdev), GFP_KERNEL); if (!rdev) { |
79cb1819e [SCSI] add prelim... |
1488 1489 1490 1491 1492 |
return NULL; } device_initialize(&rdev->rphy.dev); rdev->rphy.dev.parent = get_device(&parent->dev); |
2f8600dff [SCSI] eliminate ... |
1493 |
rdev->rphy.dev.release = sas_expander_release; |
79cb1819e [SCSI] add prelim... |
1494 1495 1496 |
mutex_lock(&sas_host->lock); rdev->rphy.scsi_target_id = sas_host->next_expander_id++; mutex_unlock(&sas_host->lock); |
71610f55f [SCSI] struct dev... |
1497 1498 |
dev_set_name(&rdev->rphy.dev, "expander-%d:%d", shost->host_no, rdev->rphy.scsi_target_id); |
79cb1819e [SCSI] add prelim... |
1499 |
rdev->rphy.identify.device_type = type; |
c5943d36a [SCSI] scsi_trans... |
1500 |
sas_rphy_initialize(&rdev->rphy); |
79cb1819e [SCSI] add prelim... |
1501 1502 1503 1504 1505 |
transport_setup_device(&rdev->rphy.dev); return &rdev->rphy; } EXPORT_SYMBOL(sas_expander_alloc); |
42ab03609 [PATCH] convert a... |
1506 1507 |
/** |
eb44820c2 [SCSI] Add Docume... |
1508 |
* sas_rphy_add - add a SAS remote PHY to the device hierarchy |
c7ebbbce3 [SCSI] SAS transp... |
1509 1510 1511 1512 1513 1514 |
* @rphy: The remote PHY to be added * * Publishes a SAS remote PHY to the rest of the system. */ int sas_rphy_add(struct sas_rphy *rphy) { |
65c92b09a [SCSI] scsi_trans... |
1515 |
struct sas_port *parent = dev_to_sas_port(rphy->dev.parent); |
c7ebbbce3 [SCSI] SAS transp... |
1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 |
struct Scsi_Host *shost = dev_to_shost(parent->dev.parent); struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); struct sas_identify *identify = &rphy->identify; int error; if (parent->rphy) return -ENXIO; parent->rphy = rphy; error = device_add(&rphy->dev); if (error) return error; transport_add_device(&rphy->dev); transport_configure_device(&rphy->dev); |
39dca558a [SCSI] bsg: make ... |
1530 |
if (sas_bsg_initialize(shost, rphy)) |
71610f55f [SCSI] struct dev... |
1531 1532 |
printk("fail to a bsg device %s ", dev_name(&rphy->dev)); |
39dca558a [SCSI] bsg: make ... |
1533 |
|
c7ebbbce3 [SCSI] SAS transp... |
1534 |
|
e02f3f592 [SCSI] remove tar... |
1535 |
mutex_lock(&sas_host->lock); |
c7ebbbce3 [SCSI] SAS transp... |
1536 1537 1538 1539 1540 |
list_add_tail(&rphy->list, &sas_host->rphy_list); if (identify->device_type == SAS_END_DEVICE && (identify->target_port_protocols & (SAS_PROTOCOL_SSP|SAS_PROTOCOL_STP|SAS_PROTOCOL_SATA))) rphy->scsi_target_id = sas_host->next_target_id++; |
7676f83ae [SCSI] scsi_trans... |
1541 1542 |
else if (identify->device_type == SAS_END_DEVICE) rphy->scsi_target_id = -1; |
e02f3f592 [SCSI] remove tar... |
1543 |
mutex_unlock(&sas_host->lock); |
c7ebbbce3 [SCSI] SAS transp... |
1544 |
|
79cb1819e [SCSI] add prelim... |
1545 1546 |
if (identify->device_type == SAS_END_DEVICE && rphy->scsi_target_id != -1) { |
2fc62e2ac [SCSI] libsas: di... |
1547 1548 1549 1550 1551 1552 |
int lun; if (identify->target_port_protocols & SAS_PROTOCOL_SSP) lun = SCAN_WILD_CARD; else lun = 0; |
1d6450881 scsi: disable aut... |
1553 1554 |
scsi_scan_target(&rphy->dev, 0, rphy->scsi_target_id, lun, SCSI_SCAN_INITIAL); |
c7ebbbce3 [SCSI] SAS transp... |
1555 1556 1557 1558 1559 1560 1561 |
} return 0; } EXPORT_SYMBOL(sas_rphy_add); /** |
eb44820c2 [SCSI] Add Docume... |
1562 1563 |
* sas_rphy_free - free a SAS remote PHY * @rphy: SAS remote PHY to free |
c7ebbbce3 [SCSI] SAS transp... |
1564 1565 1566 1567 1568 |
* * Frees the specified SAS remote PHY. * * Note: * This function must only be called on a remote |
af901ca18 tree-wide: fix as... |
1569 |
* PHY that has not successfully been added using |
6f63caae2 [SCSI] libsas: Cl... |
1570 |
* sas_rphy_add() (or has been sas_rphy_remove()'d) |
c7ebbbce3 [SCSI] SAS transp... |
1571 1572 1573 |
*/ void sas_rphy_free(struct sas_rphy *rphy) { |
92aab6464 [SCSI] sas transp... |
1574 |
struct device *dev = &rphy->dev; |
c7ebbbce3 [SCSI] SAS transp... |
1575 1576 |
struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); |
e02f3f592 [SCSI] remove tar... |
1577 |
mutex_lock(&sas_host->lock); |
c7ebbbce3 [SCSI] SAS transp... |
1578 |
list_del(&rphy->list); |
e02f3f592 [SCSI] remove tar... |
1579 |
mutex_unlock(&sas_host->lock); |
c7ebbbce3 [SCSI] SAS transp... |
1580 |
|
92aab6464 [SCSI] sas transp... |
1581 |
transport_destroy_device(dev); |
2f8600dff [SCSI] eliminate ... |
1582 |
|
92aab6464 [SCSI] sas transp... |
1583 |
put_device(dev); |
c7ebbbce3 [SCSI] SAS transp... |
1584 1585 1586 1587 |
} EXPORT_SYMBOL(sas_rphy_free); /** |
eb44820c2 [SCSI] Add Docume... |
1588 |
* sas_rphy_delete - remove and free SAS remote PHY |
6f63caae2 [SCSI] libsas: Cl... |
1589 |
* @rphy: SAS remote PHY to remove and free |
c7ebbbce3 [SCSI] SAS transp... |
1590 |
* |
6f63caae2 [SCSI] libsas: Cl... |
1591 |
* Removes the specified SAS remote PHY and frees it. |
c7ebbbce3 [SCSI] SAS transp... |
1592 1593 1594 1595 |
*/ void sas_rphy_delete(struct sas_rphy *rphy) { |
6f63caae2 [SCSI] libsas: Cl... |
1596 1597 1598 1599 1600 1601 |
sas_rphy_remove(rphy); sas_rphy_free(rphy); } EXPORT_SYMBOL(sas_rphy_delete); /** |
87c8331fc [SCSI] libsas: pr... |
1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 |
* sas_rphy_unlink - unlink SAS remote PHY * @rphy: SAS remote phy to unlink from its parent port * * Removes port reference to an rphy */ void sas_rphy_unlink(struct sas_rphy *rphy) { struct sas_port *parent = dev_to_sas_port(rphy->dev.parent); parent->rphy = NULL; } EXPORT_SYMBOL(sas_rphy_unlink); /** |
eb44820c2 [SCSI] Add Docume... |
1616 |
* sas_rphy_remove - remove SAS remote PHY |
6f63caae2 [SCSI] libsas: Cl... |
1617 1618 1619 1620 1621 1622 1623 |
* @rphy: SAS remote phy to remove * * Removes the specified SAS remote PHY. */ void sas_rphy_remove(struct sas_rphy *rphy) { |
c7ebbbce3 [SCSI] SAS transp... |
1624 |
struct device *dev = &rphy->dev; |
c7ebbbce3 [SCSI] SAS transp... |
1625 |
|
d40542399 [SCSI] sas: fix r... |
1626 1627 1628 1629 1630 1631 |
switch (rphy->identify.device_type) { case SAS_END_DEVICE: scsi_remove_target(dev); break; case SAS_EDGE_EXPANDER_DEVICE: case SAS_FANOUT_EXPANDER_DEVICE: |
65c92b09a [SCSI] scsi_trans... |
1632 |
sas_remove_children(dev); |
d40542399 [SCSI] sas: fix r... |
1633 1634 1635 1636 |
break; default: break; } |
c7ebbbce3 [SCSI] SAS transp... |
1637 |
|
87c8331fc [SCSI] libsas: pr... |
1638 |
sas_rphy_unlink(rphy); |
651a01364 scsi: scsi_transp... |
1639 1640 |
if (rphy->q) bsg_unregister_queue(rphy->q); |
fe8b2304e [SCSI] sas: fix r... |
1641 1642 |
transport_remove_device(dev); device_del(dev); |
c7ebbbce3 [SCSI] SAS transp... |
1643 |
} |
6f63caae2 [SCSI] libsas: Cl... |
1644 |
EXPORT_SYMBOL(sas_rphy_remove); |
c7ebbbce3 [SCSI] SAS transp... |
1645 1646 |
/** |
eb44820c2 [SCSI] Add Docume... |
1647 |
* scsi_is_sas_rphy - check if a struct device represents a SAS remote PHY |
c7ebbbce3 [SCSI] SAS transp... |
1648 1649 1650 1651 1652 1653 1654 |
* @dev: device to check * * Returns: * %1 if the device represents a SAS remote PHY, %0 else */ int scsi_is_sas_rphy(const struct device *dev) { |
2f8600dff [SCSI] eliminate ... |
1655 1656 |
return dev->release == sas_end_device_release || dev->release == sas_expander_release; |
c7ebbbce3 [SCSI] SAS transp... |
1657 1658 1659 1660 1661 1662 1663 |
} EXPORT_SYMBOL(scsi_is_sas_rphy); /* * SCSI scan helper */ |
e02f3f592 [SCSI] remove tar... |
1664 |
static int sas_user_scan(struct Scsi_Host *shost, uint channel, |
9cb78c16f scsi: use 64-bit ... |
1665 |
uint id, u64 lun) |
c7ebbbce3 [SCSI] SAS transp... |
1666 1667 1668 |
{ struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); struct sas_rphy *rphy; |
c7ebbbce3 [SCSI] SAS transp... |
1669 |
|
e02f3f592 [SCSI] remove tar... |
1670 |
mutex_lock(&sas_host->lock); |
c7ebbbce3 [SCSI] SAS transp... |
1671 |
list_for_each_entry(rphy, &sas_host->rphy_list, list) { |
6d99a3f37 [SCSI] scsi_trans... |
1672 1673 |
if (rphy->identify.device_type != SAS_END_DEVICE || rphy->scsi_target_id == -1) |
e02f3f592 [SCSI] remove tar... |
1674 |
continue; |
e8bf39417 [SCSI] scsi_trans... |
1675 |
if ((channel == SCAN_WILD_CARD || channel == 0) && |
e02f3f592 [SCSI] remove tar... |
1676 |
(id == SCAN_WILD_CARD || id == rphy->scsi_target_id)) { |
1d6450881 scsi: disable aut... |
1677 1678 |
scsi_scan_target(&rphy->dev, 0, rphy->scsi_target_id, lun, SCSI_SCAN_MANUAL); |
e02f3f592 [SCSI] remove tar... |
1679 |
} |
c7ebbbce3 [SCSI] SAS transp... |
1680 |
} |
e02f3f592 [SCSI] remove tar... |
1681 |
mutex_unlock(&sas_host->lock); |
c7ebbbce3 [SCSI] SAS transp... |
1682 |
|
e02f3f592 [SCSI] remove tar... |
1683 |
return 0; |
c7ebbbce3 [SCSI] SAS transp... |
1684 1685 1686 1687 1688 1689 |
} /* * Setup / Teardown code */ |
d24e1eeb3 [SCSI] scsi_trans... |
1690 |
#define SETUP_TEMPLATE(attrb, field, perm, test) \ |
ee959b00c SCSI: convert str... |
1691 |
i->private_##attrb[count] = dev_attr_##field; \ |
42ab03609 [PATCH] convert a... |
1692 |
i->private_##attrb[count].attr.mode = perm; \ |
42ab03609 [PATCH] convert a... |
1693 1694 1695 |
i->attrb[count] = &i->private_##attrb[count]; \ if (test) \ count++ |
d24e1eeb3 [SCSI] scsi_trans... |
1696 |
#define SETUP_TEMPLATE_RW(attrb, field, perm, test, ro_test, ro_perm) \ |
ee959b00c SCSI: convert str... |
1697 |
i->private_##attrb[count] = dev_attr_##field; \ |
d24e1eeb3 [SCSI] scsi_trans... |
1698 1699 1700 1701 1702 1703 1704 1705 |
i->private_##attrb[count].attr.mode = perm; \ if (ro_test) { \ i->private_##attrb[count].attr.mode = ro_perm; \ i->private_##attrb[count].store = NULL; \ } \ i->attrb[count] = &i->private_##attrb[count]; \ if (test) \ count++ |
42ab03609 [PATCH] convert a... |
1706 1707 1708 |
#define SETUP_RPORT_ATTRIBUTE(field) \ SETUP_TEMPLATE(rphy_attrs, field, S_IRUGO, 1) |
c7ebbbce3 [SCSI] SAS transp... |
1709 |
|
dd9fbb521 [SCSI] make some ... |
1710 |
#define SETUP_OPTIONAL_RPORT_ATTRIBUTE(field, func) \ |
42ab03609 [PATCH] convert a... |
1711 |
SETUP_TEMPLATE(rphy_attrs, field, S_IRUGO, i->f->func) |
dd9fbb521 [SCSI] make some ... |
1712 |
|
65c92b09a [SCSI] scsi_trans... |
1713 |
#define SETUP_PHY_ATTRIBUTE(field) \ |
42ab03609 [PATCH] convert a... |
1714 |
SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, 1) |
c7ebbbce3 [SCSI] SAS transp... |
1715 |
|
d24e1eeb3 [SCSI] scsi_trans... |
1716 1717 1718 |
#define SETUP_PHY_ATTRIBUTE_RW(field) \ SETUP_TEMPLATE_RW(phy_attrs, field, S_IRUGO | S_IWUSR, 1, \ !i->f->set_phy_speed, S_IRUGO) |
acbf167d4 [SCSI] libsas: Ad... |
1719 1720 1721 |
#define SETUP_OPTIONAL_PHY_ATTRIBUTE_RW(field, func) \ SETUP_TEMPLATE_RW(phy_attrs, field, S_IRUGO | S_IWUSR, 1, \ !i->f->func, S_IRUGO) |
65c92b09a [SCSI] scsi_trans... |
1722 1723 1724 1725 |
#define SETUP_PORT_ATTRIBUTE(field) \ SETUP_TEMPLATE(port_attrs, field, S_IRUGO, 1) #define SETUP_OPTIONAL_PHY_ATTRIBUTE(field, func) \ |
42ab03609 [PATCH] convert a... |
1726 |
SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, i->f->func) |
dd9fbb521 [SCSI] make some ... |
1727 |
|
65c92b09a [SCSI] scsi_trans... |
1728 |
#define SETUP_PHY_ATTRIBUTE_WRONLY(field) \ |
fe3b5bfe7 [SCSI] libsas: sy... |
1729 |
SETUP_TEMPLATE(phy_attrs, field, S_IWUSR, 1) |
07ba3a954 [SCSI] sas: add s... |
1730 |
|
65c92b09a [SCSI] scsi_trans... |
1731 |
#define SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(field, func) \ |
fe3b5bfe7 [SCSI] libsas: sy... |
1732 |
SETUP_TEMPLATE(phy_attrs, field, S_IWUSR, i->f->func) |
dd9fbb521 [SCSI] make some ... |
1733 |
|
42ab03609 [PATCH] convert a... |
1734 1735 |
#define SETUP_END_DEV_ATTRIBUTE(field) \ SETUP_TEMPLATE(end_dev_attrs, field, S_IRUGO, 1) |
c7ebbbce3 [SCSI] SAS transp... |
1736 |
|
79cb1819e [SCSI] add prelim... |
1737 1738 |
#define SETUP_EXPANDER_ATTRIBUTE(field) \ SETUP_TEMPLATE(expander_attrs, expander_##field, S_IRUGO, 1) |
c7ebbbce3 [SCSI] SAS transp... |
1739 |
/** |
eb44820c2 [SCSI] Add Docume... |
1740 |
* sas_attach_transport - instantiate SAS transport template |
c7ebbbce3 [SCSI] SAS transp... |
1741 1742 1743 1744 1745 1746 1747 |
* @ft: SAS transport class function template */ struct scsi_transport_template * sas_attach_transport(struct sas_function_template *ft) { struct sas_internal *i; int count; |
24669f75a [SCSI] SCSI core ... |
1748 |
i = kzalloc(sizeof(struct sas_internal), GFP_KERNEL); |
c7ebbbce3 [SCSI] SAS transp... |
1749 1750 |
if (!i) return NULL; |
c7ebbbce3 [SCSI] SAS transp... |
1751 |
|
e02f3f592 [SCSI] remove tar... |
1752 |
i->t.user_scan = sas_user_scan; |
c7ebbbce3 [SCSI] SAS transp... |
1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 |
i->t.host_attrs.ac.attrs = &i->host_attrs[0]; i->t.host_attrs.ac.class = &sas_host_class.class; i->t.host_attrs.ac.match = sas_host_match; transport_container_register(&i->t.host_attrs); i->t.host_size = sizeof(struct sas_host_attrs); i->phy_attr_cont.ac.class = &sas_phy_class.class; i->phy_attr_cont.ac.attrs = &i->phy_attrs[0]; i->phy_attr_cont.ac.match = sas_phy_match; transport_container_register(&i->phy_attr_cont); |
65c92b09a [SCSI] scsi_trans... |
1764 1765 1766 1767 |
i->port_attr_cont.ac.class = &sas_port_class.class; i->port_attr_cont.ac.attrs = &i->port_attrs[0]; i->port_attr_cont.ac.match = sas_port_match; transport_container_register(&i->port_attr_cont); |
c7ebbbce3 [SCSI] SAS transp... |
1768 1769 1770 1771 |
i->rphy_attr_cont.ac.class = &sas_rphy_class.class; i->rphy_attr_cont.ac.attrs = &i->rphy_attrs[0]; i->rphy_attr_cont.ac.match = sas_rphy_match; transport_container_register(&i->rphy_attr_cont); |
42ab03609 [PATCH] convert a... |
1772 1773 1774 1775 |
i->end_dev_attr_cont.ac.class = &sas_end_dev_class.class; i->end_dev_attr_cont.ac.attrs = &i->end_dev_attrs[0]; i->end_dev_attr_cont.ac.match = sas_end_dev_match; transport_container_register(&i->end_dev_attr_cont); |
79cb1819e [SCSI] add prelim... |
1776 1777 1778 1779 |
i->expander_attr_cont.ac.class = &sas_expander_class.class; i->expander_attr_cont.ac.attrs = &i->expander_attrs[0]; i->expander_attr_cont.ac.match = sas_expander_match; transport_container_register(&i->expander_attr_cont); |
c7ebbbce3 [SCSI] SAS transp... |
1780 1781 1782 |
i->f = ft; count = 0; |
65c92b09a [SCSI] scsi_trans... |
1783 1784 1785 1786 1787 1788 1789 1790 |
SETUP_PHY_ATTRIBUTE(initiator_port_protocols); SETUP_PHY_ATTRIBUTE(target_port_protocols); SETUP_PHY_ATTRIBUTE(device_type); SETUP_PHY_ATTRIBUTE(sas_address); SETUP_PHY_ATTRIBUTE(phy_identifier); //SETUP_PHY_ATTRIBUTE(port_identifier); SETUP_PHY_ATTRIBUTE(negotiated_linkrate); SETUP_PHY_ATTRIBUTE(minimum_linkrate_hw); |
d24e1eeb3 [SCSI] scsi_trans... |
1791 |
SETUP_PHY_ATTRIBUTE_RW(minimum_linkrate); |
65c92b09a [SCSI] scsi_trans... |
1792 |
SETUP_PHY_ATTRIBUTE(maximum_linkrate_hw); |
d24e1eeb3 [SCSI] scsi_trans... |
1793 |
SETUP_PHY_ATTRIBUTE_RW(maximum_linkrate); |
65c92b09a [SCSI] scsi_trans... |
1794 1795 1796 1797 1798 1799 1800 |
SETUP_PHY_ATTRIBUTE(invalid_dword_count); SETUP_PHY_ATTRIBUTE(running_disparity_error_count); SETUP_PHY_ATTRIBUTE(loss_of_dword_sync_count); SETUP_PHY_ATTRIBUTE(phy_reset_problem_count); SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(link_reset, phy_reset); SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(hard_reset, phy_reset); |
acbf167d4 [SCSI] libsas: Ad... |
1801 |
SETUP_OPTIONAL_PHY_ATTRIBUTE_RW(enable, phy_enable); |
c7ebbbce3 [SCSI] SAS transp... |
1802 1803 1804 |
i->phy_attrs[count] = NULL; count = 0; |
65c92b09a [SCSI] scsi_trans... |
1805 1806 1807 1808 |
SETUP_PORT_ATTRIBUTE(num_phys); i->port_attrs[count] = NULL; count = 0; |
c7ebbbce3 [SCSI] SAS transp... |
1809 1810 1811 1812 1813 |
SETUP_RPORT_ATTRIBUTE(rphy_initiator_port_protocols); SETUP_RPORT_ATTRIBUTE(rphy_target_port_protocols); SETUP_RPORT_ATTRIBUTE(rphy_device_type); SETUP_RPORT_ATTRIBUTE(rphy_sas_address); SETUP_RPORT_ATTRIBUTE(rphy_phy_identifier); |
cdc43ae34 scsi_transport_sa... |
1814 |
SETUP_RPORT_ATTRIBUTE(rphy_scsi_target_id); |
dd9fbb521 [SCSI] make some ... |
1815 1816 1817 1818 |
SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_enclosure_identifier, get_enclosure_identifier); SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_bay_identifier, get_bay_identifier); |
c7ebbbce3 [SCSI] SAS transp... |
1819 |
i->rphy_attrs[count] = NULL; |
42ab03609 [PATCH] convert a... |
1820 1821 1822 1823 |
count = 0; SETUP_END_DEV_ATTRIBUTE(end_dev_ready_led_meaning); SETUP_END_DEV_ATTRIBUTE(end_dev_I_T_nexus_loss_timeout); SETUP_END_DEV_ATTRIBUTE(end_dev_initiator_response_timeout); |
0f88009d5 [SCSI] scsi_trans... |
1824 1825 |
SETUP_END_DEV_ATTRIBUTE(end_dev_tlr_supported); SETUP_END_DEV_ATTRIBUTE(end_dev_tlr_enabled); |
42ab03609 [PATCH] convert a... |
1826 |
i->end_dev_attrs[count] = NULL; |
79cb1819e [SCSI] add prelim... |
1827 1828 1829 1830 1831 1832 1833 1834 1835 |
count = 0; SETUP_EXPANDER_ATTRIBUTE(vendor_id); SETUP_EXPANDER_ATTRIBUTE(product_id); SETUP_EXPANDER_ATTRIBUTE(product_rev); SETUP_EXPANDER_ATTRIBUTE(component_vendor_id); SETUP_EXPANDER_ATTRIBUTE(component_id); SETUP_EXPANDER_ATTRIBUTE(component_revision_id); SETUP_EXPANDER_ATTRIBUTE(level); i->expander_attrs[count] = NULL; |
c7ebbbce3 [SCSI] SAS transp... |
1836 1837 1838 1839 1840 |
return &i->t; } EXPORT_SYMBOL(sas_attach_transport); /** |
eb44820c2 [SCSI] Add Docume... |
1841 |
* sas_release_transport - release SAS transport template instance |
c7ebbbce3 [SCSI] SAS transp... |
1842 1843 1844 1845 1846 1847 1848 1849 |
* @t: transport template instance */ void sas_release_transport(struct scsi_transport_template *t) { struct sas_internal *i = to_sas_internal(t); transport_container_unregister(&i->t.host_attrs); transport_container_unregister(&i->phy_attr_cont); |
65c92b09a [SCSI] scsi_trans... |
1850 |
transport_container_unregister(&i->port_attr_cont); |
c7ebbbce3 [SCSI] SAS transp... |
1851 |
transport_container_unregister(&i->rphy_attr_cont); |
db82f8410 [SCSI] add missin... |
1852 |
transport_container_unregister(&i->end_dev_attr_cont); |
79cb1819e [SCSI] add prelim... |
1853 |
transport_container_unregister(&i->expander_attr_cont); |
c7ebbbce3 [SCSI] SAS transp... |
1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 |
kfree(i); } EXPORT_SYMBOL(sas_release_transport); static __init int sas_transport_init(void) { int error; error = transport_class_register(&sas_host_class); if (error) goto out; error = transport_class_register(&sas_phy_class); if (error) goto out_unregister_transport; |
65c92b09a [SCSI] scsi_trans... |
1869 |
error = transport_class_register(&sas_port_class); |
c7ebbbce3 [SCSI] SAS transp... |
1870 1871 |
if (error) goto out_unregister_phy; |
65c92b09a [SCSI] scsi_trans... |
1872 1873 1874 |
error = transport_class_register(&sas_rphy_class); if (error) goto out_unregister_port; |
42ab03609 [PATCH] convert a... |
1875 1876 1877 |
error = transport_class_register(&sas_end_dev_class); if (error) goto out_unregister_rphy; |
79cb1819e [SCSI] add prelim... |
1878 1879 1880 |
error = transport_class_register(&sas_expander_class); if (error) goto out_unregister_end_dev; |
c7ebbbce3 [SCSI] SAS transp... |
1881 1882 |
return 0; |
79cb1819e [SCSI] add prelim... |
1883 1884 |
out_unregister_end_dev: transport_class_unregister(&sas_end_dev_class); |
42ab03609 [PATCH] convert a... |
1885 1886 |
out_unregister_rphy: transport_class_unregister(&sas_rphy_class); |
65c92b09a [SCSI] scsi_trans... |
1887 1888 |
out_unregister_port: transport_class_unregister(&sas_port_class); |
c7ebbbce3 [SCSI] SAS transp... |
1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 |
out_unregister_phy: transport_class_unregister(&sas_phy_class); out_unregister_transport: transport_class_unregister(&sas_host_class); out: return error; } static void __exit sas_transport_exit(void) { transport_class_unregister(&sas_host_class); transport_class_unregister(&sas_phy_class); |
65c92b09a [SCSI] scsi_trans... |
1902 |
transport_class_unregister(&sas_port_class); |
c7ebbbce3 [SCSI] SAS transp... |
1903 |
transport_class_unregister(&sas_rphy_class); |
42ab03609 [PATCH] convert a... |
1904 |
transport_class_unregister(&sas_end_dev_class); |
79cb1819e [SCSI] add prelim... |
1905 |
transport_class_unregister(&sas_expander_class); |
c7ebbbce3 [SCSI] SAS transp... |
1906 1907 1908 |
} MODULE_AUTHOR("Christoph Hellwig"); |
86b9c4c16 [SCSI] aic94xx: f... |
1909 |
MODULE_DESCRIPTION("SAS Transport Attributes"); |
c7ebbbce3 [SCSI] SAS transp... |
1910 1911 1912 1913 |
MODULE_LICENSE("GPL"); module_init(sas_transport_init); module_exit(sas_transport_exit); |