scsi_transport_sas.c revision 75ad23bc0fcb4f992a5d06982bf0857ab1738e9e
1c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/* 2a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig * Copyright (C) 2005-2006 Dell Inc. 3c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Released under GPL v2. 4c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 5c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Serial Attached SCSI (SAS) transport class. 6c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 7c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * The SAS transport class contains common code to deal with SAS HBAs, 8c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * an aproximated representation of SAS topologies in the driver model, 9b1c118121ae37285ddc0a7a908999196bb35fb0bJoe Perches * and various sysfs attributes to expose these topologies and management 10c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * interfaces to userspace. 11c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 12c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * In addition to the basic SCSI core objects this transport class 13c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * introduces two additional intermediate objects: The SAS PHY 14c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * as represented by struct sas_phy defines an "outgoing" PHY on 15c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * a SAS HBA or Expander, and the SAS remote PHY represented by 16c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * struct sas_rphy defines an "incoming" PHY on a SAS Expander or 17c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * end device. Note that this is purely a software concept, the 18c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * underlying hardware for a PHY and a remote PHY is the exactly 19c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * the same. 20c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 21c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * There is no concept of a SAS port in this code, users can see 22c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * what PHYs form a wide port based on the port_identifier attribute, 23c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * which is the same for all PHYs in a port. 24c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 25c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 26c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#include <linux/init.h> 27c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#include <linux/module.h> 28f6a570333e554b48ad589e7137c77c57809eee81Al Viro#include <linux/jiffies.h> 29c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#include <linux/err.h> 308c65b4a60450590e79a28e9717ceffa9e4debb3fTim Schmielau#include <linux/slab.h> 318c65b4a60450590e79a28e9717ceffa9e4debb3fTim Schmielau#include <linux/string.h> 327aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori#include <linux/blkdev.h> 337aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori#include <linux/bsg.h> 34c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 35e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig#include <scsi/scsi.h> 36c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#include <scsi/scsi_device.h> 37c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#include <scsi/scsi_host.h> 38c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#include <scsi/scsi_transport.h> 39c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#include <scsi/scsi_transport_sas.h> 40c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 41d6159c17c2c76963a8067d1e1ac3c4c36c05e674James Bottomley#include "scsi_sas_internal.h" 42c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstruct sas_host_attrs { 43c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct list_head rphy_list; 44e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig struct mutex lock; 45b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley struct request_queue *q; 46c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig u32 next_target_id; 4779cb1819e231f811211133a09a5382cb89d7ec67James Bottomley u32 next_expander_id; 48c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley int next_port_id; 49c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig}; 50c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define to_sas_host_attrs(host) ((struct sas_host_attrs *)(host)->shost_data) 51c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 52c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 53c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/* 54c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Hack to allow attributes of the same name in different objects. 55c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 56ee959b00c335d7780136c5abda37809191fe52c3Tony Jones#define SAS_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \ 57ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute dev_attr_##_prefix##_##_name = \ 58c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig __ATTR(_name,_mode,_show,_store) 59c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 60c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 61c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/* 62c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Pretty printing helpers 63c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 64c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 65c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_bitfield_name_match(title, table) \ 66c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic ssize_t \ 67c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigget_sas_##title##_names(u32 table_key, char *buf) \ 68c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ \ 69c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig char *prefix = ""; \ 70c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig ssize_t len = 0; \ 71c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig int i; \ 72c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig \ 736391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 74c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (table[i].value & table_key) { \ 75c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig len += sprintf(buf + len, "%s%s", \ 76c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig prefix, table[i].name); \ 77c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig prefix = ", "; \ 78c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig } \ 79c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig } \ 80c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig len += sprintf(buf + len, "\n"); \ 81c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return len; \ 82c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 83c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 84d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley#define sas_bitfield_name_set(title, table) \ 85d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomleystatic ssize_t \ 86d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomleyset_sas_##title##_names(u32 *table_key, const char *buf) \ 87d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley{ \ 88d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley ssize_t len = 0; \ 89d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley int i; \ 90d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley \ 91d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley for (i = 0; i < ARRAY_SIZE(table); i++) { \ 92d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley len = strlen(table[i].name); \ 93d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley if (strncmp(buf, table[i].name, len) == 0 && \ 94d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley (buf[len] == '\n' || buf[len] == '\0')) { \ 95d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley *table_key = table[i].value; \ 96d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley return 0; \ 97d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley } \ 98d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley } \ 99d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley return -EINVAL; \ 100d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley} 101d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley 102c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_bitfield_name_search(title, table) \ 103c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic ssize_t \ 104c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigget_sas_##title##_names(u32 table_key, char *buf) \ 105c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ \ 106c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig ssize_t len = 0; \ 107c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig int i; \ 108c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig \ 1096391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 110c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (table[i].value == table_key) { \ 111c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig len += sprintf(buf + len, "%s", \ 112c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig table[i].name); \ 113c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig break; \ 114c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig } \ 115c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig } \ 116c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig len += sprintf(buf + len, "\n"); \ 117c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return len; \ 118c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 119c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 120c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic struct { 121c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig u32 value; 122c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig char *name; 123c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} sas_device_type_names[] = { 124c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_PHY_UNUSED, "unused" }, 125c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_END_DEVICE, "end device" }, 126c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_EDGE_EXPANDER_DEVICE, "edge expander" }, 127c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_FANOUT_EXPANDER_DEVICE, "fanout expander" }, 128c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig}; 129c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_bitfield_name_search(device_type, sas_device_type_names) 130c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 131c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 132c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic struct { 133c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig u32 value; 134c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig char *name; 135c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} sas_protocol_names[] = { 136c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_PROTOCOL_SATA, "sata" }, 137c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_PROTOCOL_SMP, "smp" }, 138c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_PROTOCOL_STP, "stp" }, 139c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_PROTOCOL_SSP, "ssp" }, 140c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig}; 141c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_bitfield_name_match(protocol, sas_protocol_names) 142c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 143c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic struct { 144c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig u32 value; 145c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig char *name; 146c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} sas_linkspeed_names[] = { 147c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_LINK_RATE_UNKNOWN, "Unknown" }, 148c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_PHY_DISABLED, "Phy disabled" }, 149c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_LINK_RATE_FAILED, "Link Rate failed" }, 150c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_SATA_SPINUP_HOLD, "Spin-up hold" }, 151c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_LINK_RATE_1_5_GBPS, "1.5 Gbit" }, 152c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig { SAS_LINK_RATE_3_0_GBPS, "3.0 Gbit" }, 1537e6dff62dad539cbd608bb3b8b833193d13f00acJames Bottomley { SAS_LINK_RATE_6_0_GBPS, "6.0 Gbit" }, 154c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig}; 155c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_bitfield_name_search(linkspeed, sas_linkspeed_names) 156d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomleysas_bitfield_name_set(linkspeed, sas_linkspeed_names) 157c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1587aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonoristatic void sas_smp_request(struct request_queue *q, struct Scsi_Host *shost, 1597aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori struct sas_rphy *rphy) 1607aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori{ 1617aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori struct request *req; 1627aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori int ret; 1637aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori int (*handler)(struct Scsi_Host *, struct sas_rphy *, struct request *); 1647aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 1657aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori while (!blk_queue_plugged(q)) { 1667aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori req = elv_next_request(q); 1677aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori if (!req) 1687aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori break; 1697aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 1707aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori blkdev_dequeue_request(req); 1717aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 1727aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori spin_unlock_irq(q->queue_lock); 1737aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 1747aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori handler = to_sas_internal(shost->transportt)->f->smp_handler; 1757aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori ret = handler(shost, rphy, req); 1762d507a01dac338831266b44ccbb01c69e84606edJames Bottomley req->errors = ret; 1777aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 1787aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori spin_lock_irq(q->queue_lock); 1797aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 1807aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori req->end_io(req, ret); 1817aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori } 1827aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori} 1837aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 1847aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonoristatic void sas_host_smp_request(struct request_queue *q) 1857aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori{ 1867aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori sas_smp_request(q, (struct Scsi_Host *)q->queuedata, NULL); 1877aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori} 1887aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 1897aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonoristatic void sas_non_host_smp_request(struct request_queue *q) 1907aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori{ 1917aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori struct sas_rphy *rphy = q->queuedata; 1927aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori sas_smp_request(q, rphy_to_shost(rphy), rphy); 1937aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori} 1947aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 19593c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonoristatic void sas_host_release(struct device *dev) 19693c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori{ 19793c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori struct Scsi_Host *shost = dev_to_shost(dev); 19893c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); 19993c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori struct request_queue *q = sas_host->q; 20093c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori 20193c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori if (q) 20293c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori blk_cleanup_queue(q); 20393c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori} 20493c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori 20539dca558a5b52b63e49bc234a7e887be092aa690James Bottomleystatic int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy) 2067aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori{ 2077aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori struct request_queue *q; 2087aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori int error; 20939dca558a5b52b63e49bc234a7e887be092aa690James Bottomley struct device *dev; 21039dca558a5b52b63e49bc234a7e887be092aa690James Bottomley char namebuf[BUS_ID_SIZE]; 21139dca558a5b52b63e49bc234a7e887be092aa690James Bottomley const char *name; 21293c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori void (*release)(struct device *); 2137aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 2147aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori if (!to_sas_internal(shost->transportt)->f->smp_handler) { 2157aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori printk("%s can't handle SMP requests\n", shost->hostt->name); 2167aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori return 0; 2177aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori } 2187aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 21939dca558a5b52b63e49bc234a7e887be092aa690James Bottomley if (rphy) { 2207aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori q = blk_init_queue(sas_non_host_smp_request, NULL); 22139dca558a5b52b63e49bc234a7e887be092aa690James Bottomley dev = &rphy->dev; 22239dca558a5b52b63e49bc234a7e887be092aa690James Bottomley name = dev->bus_id; 22393c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori release = NULL; 22439dca558a5b52b63e49bc234a7e887be092aa690James Bottomley } else { 2257aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori q = blk_init_queue(sas_host_smp_request, NULL); 22639dca558a5b52b63e49bc234a7e887be092aa690James Bottomley dev = &shost->shost_gendev; 22739dca558a5b52b63e49bc234a7e887be092aa690James Bottomley snprintf(namebuf, sizeof(namebuf), 22839dca558a5b52b63e49bc234a7e887be092aa690James Bottomley "sas_host%d", shost->host_no); 22939dca558a5b52b63e49bc234a7e887be092aa690James Bottomley name = namebuf; 23093c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori release = sas_host_release; 23139dca558a5b52b63e49bc234a7e887be092aa690James Bottomley } 2327aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori if (!q) 2337aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori return -ENOMEM; 2347aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 23593c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori error = bsg_register_queue(q, dev, name, release); 2367aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori if (error) { 2377aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori blk_cleanup_queue(q); 2387aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori return -ENOMEM; 2397aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori } 2407aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 2417aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori if (rphy) 242b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley rphy->q = q; 243b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley else 244b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley to_sas_host_attrs(shost)->q = q; 245b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley 246b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley if (rphy) 2477aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori q->queuedata = rphy; 2487aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori else 2497aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori q->queuedata = shost; 2507aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 25175ad23bc0fcb4f992a5d06982bf0857ab1738e9eNick Piggin queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q); 2527aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori return 0; 2537aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori} 2547aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 255b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomleystatic void sas_bsg_remove(struct Scsi_Host *shost, struct sas_rphy *rphy) 256b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley{ 257b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley struct request_queue *q; 258b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley 259b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley if (rphy) 260b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley q = rphy->q; 261b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley else 262b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley q = to_sas_host_attrs(shost)->q; 263b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley 264b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley if (!q) 265b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley return; 266b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley 267b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley bsg_unregister_queue(q); 268b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley} 269b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley 270c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/* 271c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * SAS host attributes 272c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 273c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 27437be6eeb4990c05fc7dd683ceaf1501d46ebe9a4James Bottomleystatic int sas_host_setup(struct transport_container *tc, struct device *dev, 275ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device *cdev) 276c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 277c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct Scsi_Host *shost = dev_to_shost(dev); 278c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); 279c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 280c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig INIT_LIST_HEAD(&sas_host->rphy_list); 281e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig mutex_init(&sas_host->lock); 282c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig sas_host->next_target_id = 0; 28379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley sas_host->next_expander_id = 0; 284c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley sas_host->next_port_id = 0; 2857aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 28639dca558a5b52b63e49bc234a7e887be092aa690James Bottomley if (sas_bsg_initialize(shost, NULL)) 2877aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori dev_printk(KERN_ERR, dev, "fail to a bsg device %d\n", 2887aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori shost->host_no); 2897aa68e80bd481faae1234bc2a7e4bcc9348f98b4FUJITA Tomonori 290c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 291c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 292c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 293b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomleystatic int sas_host_remove(struct transport_container *tc, struct device *dev, 294ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device *cdev) 295b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley{ 296b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley struct Scsi_Host *shost = dev_to_shost(dev); 297b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley 298b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley sas_bsg_remove(shost, NULL); 299b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley 300b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley return 0; 301b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley} 302b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley 303c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic DECLARE_TRANSPORT_CLASS(sas_host_class, 304b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley "sas_host", sas_host_setup, sas_host_remove, NULL); 305c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 306c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic int sas_host_match(struct attribute_container *cont, 307c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct device *dev) 308c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 309c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct Scsi_Host *shost; 310c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_internal *i; 311c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 312c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!scsi_is_host_device(dev)) 313c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 314c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig shost = dev_to_shost(dev); 315c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 316c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!shost->transportt) 317c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 318c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (shost->transportt->host_attrs.ac.class != 319c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig &sas_host_class.class) 320c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 321c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 322c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i = to_sas_internal(shost->transportt); 323c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return &i->t.host_attrs.ac == cont; 324c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 325c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 326c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic int do_sas_phy_delete(struct device *dev, void *data) 327c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 32865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley int pass = (int)(unsigned long)data; 32965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 33065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (pass == 0 && scsi_is_sas_port(dev)) 33165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sas_port_delete(dev_to_sas_port(dev)); 33265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley else if (pass == 1 && scsi_is_sas_phy(dev)) 333c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig sas_phy_delete(dev_to_phy(dev)); 334c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 335c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 336c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 337c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 338eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_remove_children - tear down a devices SAS data structures 33965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @dev: device belonging to the sas object 34065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 34165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * Removes all SAS PHYs and remote PHYs for a given object 34265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley */ 34365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleyvoid sas_remove_children(struct device *dev) 34465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 34565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley device_for_each_child(dev, (void *)0, do_sas_phy_delete); 34665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley device_for_each_child(dev, (void *)1, do_sas_phy_delete); 34765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 34865c92b09acf0218b64f1c7ba4fdabeb8b732c876James BottomleyEXPORT_SYMBOL(sas_remove_children); 34965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 35065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley/** 351eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_remove_host - tear down a Scsi_Host's SAS data structures 352c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * @shost: Scsi Host that is torn down 353c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 354c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Removes all SAS PHYs and remote PHYs for a given Scsi_Host. 355c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Must be called just before scsi_remove_host for SAS HBAs. 356c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 357c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigvoid sas_remove_host(struct Scsi_Host *shost) 358c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 35965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sas_remove_children(&shost->shost_gendev); 360c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 361c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(sas_remove_host); 362c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 363c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 364c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/* 36565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * SAS Phy attributes 366c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 367c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 368c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_phy_show_simple(field, name, format_string, cast) \ 369c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic ssize_t \ 370ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_phy_##name(struct device *dev, \ 371ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 372c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ \ 373ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_phy *phy = transport_class_to_phy(dev); \ 374c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig \ 375c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return snprintf(buf, 20, format_string, cast phy->field); \ 376c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 377c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 378c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_phy_simple_attr(field, name, format_string, type) \ 379c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig sas_phy_show_simple(field, name, format_string, (type)) \ 380ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL) 381c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 382c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_phy_show_protocol(field, name) \ 383c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic ssize_t \ 384ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_phy_##name(struct device *dev, \ 385ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 386c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ \ 387ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_phy *phy = transport_class_to_phy(dev); \ 388c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig \ 389c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!phy->field) \ 390c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return snprintf(buf, 20, "none\n"); \ 391c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return get_sas_protocol_names(phy->field, buf); \ 392c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 393c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 394c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_phy_protocol_attr(field, name) \ 395c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig sas_phy_show_protocol(field, name) \ 396ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL) 397c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 398c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_phy_show_linkspeed(field) \ 399c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic ssize_t \ 400ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_phy_##field(struct device *dev, \ 401ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 402c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ \ 403ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_phy *phy = transport_class_to_phy(dev); \ 404c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig \ 405c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return get_sas_linkspeed_names(phy->field, buf); \ 406c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 407c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 408d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley/* Fudge to tell if we're minimum or maximum */ 409d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley#define sas_phy_store_linkspeed(field) \ 410d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomleystatic ssize_t \ 411ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_sas_phy_##field(struct device *dev, \ 412ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 413ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 414d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley{ \ 415ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_phy *phy = transport_class_to_phy(dev); \ 416d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); \ 417d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley struct sas_internal *i = to_sas_internal(shost->transportt); \ 418d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley u32 value; \ 419d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley struct sas_phy_linkrates rates = {0}; \ 420d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley int error; \ 421d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley \ 422d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley error = set_sas_linkspeed_names(&value, buf); \ 423d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley if (error) \ 424d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley return error; \ 425d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley rates.field = value; \ 426d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley error = i->f->set_phy_speed(phy, &rates); \ 427d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley \ 428d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley return error ? error : count; \ 429d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley} 430d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley 431d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley#define sas_phy_linkspeed_rw_attr(field) \ 432d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley sas_phy_show_linkspeed(field) \ 433d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley sas_phy_store_linkspeed(field) \ 434ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, \ 435d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley store_sas_phy_##field) 436d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley 437c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_phy_linkspeed_attr(field) \ 438c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig sas_phy_show_linkspeed(field) \ 439ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL) 440c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 441d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley 442c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig#define sas_phy_show_linkerror(field) \ 443c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwigstatic ssize_t \ 444ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_phy_##field(struct device *dev, \ 445ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 446c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig{ \ 447ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_phy *phy = transport_class_to_phy(dev); \ 448c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); \ 449c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig struct sas_internal *i = to_sas_internal(shost->transportt); \ 450c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig int error; \ 451c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig \ 452dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0James Bottomley error = i->f->get_linkerrors ? i->f->get_linkerrors(phy) : 0; \ 453c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig if (error) \ 454c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig return error; \ 455c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig return snprintf(buf, 20, "%u\n", phy->field); \ 456c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig} 457c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig 458c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig#define sas_phy_linkerror_attr(field) \ 459c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig sas_phy_show_linkerror(field) \ 460ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL) 461c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig 462c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwig 463c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic ssize_t 464ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_device_type(struct device *dev, 465ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 466c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 467ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_phy *phy = transport_class_to_phy(dev); 468c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 469c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!phy->identify.device_type) 470c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return snprintf(buf, 20, "none\n"); 471c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return get_sas_device_type_names(phy->identify.device_type, buf); 472c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 473ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic DEVICE_ATTR(device_type, S_IRUGO, show_sas_device_type, NULL); 474c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 475ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic ssize_t do_sas_phy_enable(struct device *dev, 476acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong size_t count, int enable) 477acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong{ 478ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_phy *phy = transport_class_to_phy(dev); 479acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); 480acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong struct sas_internal *i = to_sas_internal(shost->transportt); 481acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong int error; 482acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong 483acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong error = i->f->phy_enable(phy, enable); 484acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong if (error) 485acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong return error; 486acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong phy->enabled = enable; 487acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong return count; 488acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong}; 489acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong 490ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic ssize_t 491ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_sas_phy_enable(struct device *dev, struct device_attribute *attr, 492ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 493acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong{ 494acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong if (count < 1) 495acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong return -EINVAL; 496acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong 497acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong switch (buf[0]) { 498acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong case '0': 499ee959b00c335d7780136c5abda37809191fe52c3Tony Jones do_sas_phy_enable(dev, count, 0); 500acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong break; 501acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong case '1': 502ee959b00c335d7780136c5abda37809191fe52c3Tony Jones do_sas_phy_enable(dev, count, 1); 503acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong break; 504acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong default: 505acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong return -EINVAL; 506acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong } 507acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong 508acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong return count; 509acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong} 510acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong 511ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic ssize_t 512ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_phy_enable(struct device *dev, struct device_attribute *attr, 513ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) 514acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong{ 515ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_phy *phy = transport_class_to_phy(dev); 516acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong 517acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong return snprintf(buf, 20, "%d", phy->enabled); 518acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong} 519acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong 520ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, show_sas_phy_enable, 521acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong store_sas_phy_enable); 522acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong 523ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic ssize_t 524ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesdo_sas_phy_reset(struct device *dev, size_t count, int hard_reset) 52507ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig{ 526ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_phy *phy = transport_class_to_phy(dev); 52707ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); 52807ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig struct sas_internal *i = to_sas_internal(shost->transportt); 52907ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig int error; 53007ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig 53107ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig error = i->f->phy_reset(phy, hard_reset); 53207ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig if (error) 53307ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig return error; 53407ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig return count; 53507ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig}; 53607ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig 537ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic ssize_t 538ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_sas_link_reset(struct device *dev, struct device_attribute *attr, 539ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 54007ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig{ 541ee959b00c335d7780136c5abda37809191fe52c3Tony Jones return do_sas_phy_reset(dev, count, 0); 54207ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig} 543ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic DEVICE_ATTR(link_reset, S_IWUSR, NULL, store_sas_link_reset); 54407ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig 545ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic ssize_t 546ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_sas_hard_reset(struct device *dev, struct device_attribute *attr, 547ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 54807ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig{ 549ee959b00c335d7780136c5abda37809191fe52c3Tony Jones return do_sas_phy_reset(dev, count, 1); 55007ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig} 551ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic DEVICE_ATTR(hard_reset, S_IWUSR, NULL, store_sas_hard_reset); 55207ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig 553c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_phy_protocol_attr(identify.initiator_port_protocols, 554c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig initiator_port_protocols); 555c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_phy_protocol_attr(identify.target_port_protocols, 556c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig target_port_protocols); 557c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_phy_simple_attr(identify.sas_address, sas_address, "0x%016llx\n", 558c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig unsigned long long); 559c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_phy_simple_attr(identify.phy_identifier, phy_identifier, "%d\n", u8); 560c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley//sas_phy_simple_attr(port_identifier, port_identifier, "%d\n", int); 561c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_phy_linkspeed_attr(negotiated_linkrate); 562c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_phy_linkspeed_attr(minimum_linkrate_hw); 563d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomleysas_phy_linkspeed_rw_attr(minimum_linkrate); 564c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_phy_linkspeed_attr(maximum_linkrate_hw); 565d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomleysas_phy_linkspeed_rw_attr(maximum_linkrate); 566c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwigsas_phy_linkerror_attr(invalid_dword_count); 567c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwigsas_phy_linkerror_attr(running_disparity_error_count); 568c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwigsas_phy_linkerror_attr(loss_of_dword_sync_count); 569c3ee74c4e91017169c7f1fa74a57ba8502ec49c3Christoph Hellwigsas_phy_linkerror_attr(phy_reset_problem_count); 570c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 571c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 572c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic DECLARE_TRANSPORT_CLASS(sas_phy_class, 573c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig "sas_phy", NULL, NULL, NULL); 574c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 575c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic int sas_phy_match(struct attribute_container *cont, struct device *dev) 576c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 577c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct Scsi_Host *shost; 578c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_internal *i; 579c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 580c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!scsi_is_sas_phy(dev)) 581c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 582c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig shost = dev_to_shost(dev->parent); 583c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 584c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!shost->transportt) 585c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 586c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (shost->transportt->host_attrs.ac.class != 587c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig &sas_host_class.class) 588c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 589c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 590c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i = to_sas_internal(shost->transportt); 591c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return &i->phy_attr_cont.ac == cont; 592c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 593c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 594c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic void sas_phy_release(struct device *dev) 595c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 596c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_phy *phy = dev_to_phy(dev); 597c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 598c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig put_device(dev->parent); 599c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig kfree(phy); 600c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 601c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 602c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 603eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_phy_alloc - allocates and initialize a SAS PHY structure 604c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * @parent: Parent device 605d99ca4180fe44ae7f409fc73f1a09f270b8d458aMoore, Eric * @number: Phy index 606c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 607c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Allocates an SAS PHY structure. It will be added in the device tree 608c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * below the device specified by @parent, which has to be either a Scsi_Host 609c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * or sas_rphy. 610c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 611c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Returns: 612c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * SAS PHY allocated or %NULL if the allocation failed. 613c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 614c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstruct sas_phy *sas_phy_alloc(struct device *parent, int number) 615c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 616c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct Scsi_Host *shost = dev_to_shost(parent); 617c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_phy *phy; 618c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 61924669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen phy = kzalloc(sizeof(*phy), GFP_KERNEL); 620c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!phy) 621c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return NULL; 622c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 623c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig phy->number = number; 624acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong phy->enabled = 1; 625c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 626c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig device_initialize(&phy->dev); 627c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig phy->dev.parent = get_device(parent); 628c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig phy->dev.release = sas_phy_release; 62965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley INIT_LIST_HEAD(&phy->port_siblings); 63079cb1819e231f811211133a09a5382cb89d7ec67James Bottomley if (scsi_is_sas_expander_device(parent)) { 63179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley struct sas_rphy *rphy = dev_to_rphy(parent); 63265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sprintf(phy->dev.bus_id, "phy-%d:%d:%d", shost->host_no, 63379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley rphy->scsi_target_id, number); 63479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley } else 63579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley sprintf(phy->dev.bus_id, "phy-%d:%d", shost->host_no, number); 636c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 637c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_setup_device(&phy->dev); 638c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 639c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return phy; 640c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 641c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(sas_phy_alloc); 642c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 643c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 644eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_phy_add - add a SAS PHY to the device hierarchy 645c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * @phy: The PHY to be added 646c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 647c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Publishes a SAS PHY to the rest of the system. 648c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 649c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigint sas_phy_add(struct sas_phy *phy) 650c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 651c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig int error; 652c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 653c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig error = device_add(&phy->dev); 654c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!error) { 655c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_add_device(&phy->dev); 656c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_configure_device(&phy->dev); 657c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig } 658c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 659c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return error; 660c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 661c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(sas_phy_add); 662c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 663c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 664eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_phy_free - free a SAS PHY 665c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * @phy: SAS PHY to free 666c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 667c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Frees the specified SAS PHY. 668c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 669c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Note: 670c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * This function must only be called on a PHY that has not 671c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * sucessfully been added using sas_phy_add(). 672c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 673c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigvoid sas_phy_free(struct sas_phy *phy) 674c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 675c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_destroy_device(&phy->dev); 67692aab6464be735139f9ea38fd039c3b84c722630Mike Anderson put_device(&phy->dev); 677c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 678c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(sas_phy_free); 679c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 680c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 681eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_phy_delete - remove SAS PHY 682c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * @phy: SAS PHY to remove 683c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 684c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Removes the specified SAS PHY. If the SAS PHY has an 685c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * associated remote PHY it is removed before. 686c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 687c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigvoid 688c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_phy_delete(struct sas_phy *phy) 689c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 690c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct device *dev = &phy->dev; 691c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 69265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley /* this happens if the phy is still part of a port when deleted */ 69365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley BUG_ON(!list_empty(&phy->port_siblings)); 694c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 695c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_remove_device(dev); 696c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig device_del(dev); 697c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_destroy_device(dev); 69892aab6464be735139f9ea38fd039c3b84c722630Mike Anderson put_device(dev); 699c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 700c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(sas_phy_delete); 701c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 702c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 703eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * scsi_is_sas_phy - check if a struct device represents a SAS PHY 704c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * @dev: device to check 705c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 706c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Returns: 707c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * %1 if the device represents a SAS PHY, %0 else 708c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 709c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigint scsi_is_sas_phy(const struct device *dev) 710c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 711c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return dev->release == sas_phy_release; 712c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 713c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(scsi_is_sas_phy); 714c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 715c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/* 71665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * SAS Port attributes 71765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley */ 71865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley#define sas_port_show_simple(field, name, format_string, cast) \ 71965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleystatic ssize_t \ 720ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_port_##name(struct device *dev, \ 721ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 72265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ \ 723ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_port *port = transport_class_to_sas_port(dev); \ 72465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley \ 72565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley return snprintf(buf, 20, format_string, cast port->field); \ 72665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 72765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 72865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley#define sas_port_simple_attr(field, name, format_string, type) \ 72965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sas_port_show_simple(field, name, format_string, (type)) \ 730ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic DEVICE_ATTR(name, S_IRUGO, show_sas_port_##name, NULL) 73165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 73265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleysas_port_simple_attr(num_phys, num_phys, "%d\n", int); 73365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 73465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleystatic DECLARE_TRANSPORT_CLASS(sas_port_class, 73565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley "sas_port", NULL, NULL, NULL); 73665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 73765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleystatic int sas_port_match(struct attribute_container *cont, struct device *dev) 73865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 73965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct Scsi_Host *shost; 74065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_internal *i; 74165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 74265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (!scsi_is_sas_port(dev)) 74365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley return 0; 74465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley shost = dev_to_shost(dev->parent); 74565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 74665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (!shost->transportt) 74765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley return 0; 74865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (shost->transportt->host_attrs.ac.class != 74965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley &sas_host_class.class) 75065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley return 0; 75165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 75265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley i = to_sas_internal(shost->transportt); 75365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley return &i->port_attr_cont.ac == cont; 75465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 75565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 75665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 75765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleystatic void sas_port_release(struct device *dev) 75865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 75965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_port *port = dev_to_sas_port(dev); 76065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 76165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley BUG_ON(!list_empty(&port->phy_list)); 76265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 76365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley put_device(dev->parent); 76465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley kfree(port); 76565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 76665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 76765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleystatic void sas_port_create_link(struct sas_port *port, 76865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_phy *phy) 76965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 77021434966462d57145c861b43f6206d945ac57630Darrick J. Wong int res; 77121434966462d57145c861b43f6206d945ac57630Darrick J. Wong 77221434966462d57145c861b43f6206d945ac57630Darrick J. Wong res = sysfs_create_link(&port->dev.kobj, &phy->dev.kobj, 77321434966462d57145c861b43f6206d945ac57630Darrick J. Wong phy->dev.bus_id); 77421434966462d57145c861b43f6206d945ac57630Darrick J. Wong if (res) 77521434966462d57145c861b43f6206d945ac57630Darrick J. Wong goto err; 77621434966462d57145c861b43f6206d945ac57630Darrick J. Wong res = sysfs_create_link(&phy->dev.kobj, &port->dev.kobj, "port"); 77721434966462d57145c861b43f6206d945ac57630Darrick J. Wong if (res) 77821434966462d57145c861b43f6206d945ac57630Darrick J. Wong goto err; 77921434966462d57145c861b43f6206d945ac57630Darrick J. Wong return; 78021434966462d57145c861b43f6206d945ac57630Darrick J. Wongerr: 78121434966462d57145c861b43f6206d945ac57630Darrick J. Wong printk(KERN_ERR "%s: Cannot create port links, err=%d\n", 78221434966462d57145c861b43f6206d945ac57630Darrick J. Wong __FUNCTION__, res); 78365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 78465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 78565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleystatic void sas_port_delete_link(struct sas_port *port, 78665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_phy *phy) 78765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 78865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sysfs_remove_link(&port->dev.kobj, phy->dev.bus_id); 78965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sysfs_remove_link(&phy->dev.kobj, "port"); 79065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 79165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 79265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley/** sas_port_alloc - allocate and initialize a SAS port structure 79365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 79465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @parent: parent device 79565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @port_id: port number 79665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 79765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * Allocates a SAS port structure. It will be added to the device tree 79865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * below the device specified by @parent which must be either a Scsi_Host 79965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * or a sas_expander_device. 80065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 80165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * Returns %NULL on error 80265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley */ 80365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleystruct sas_port *sas_port_alloc(struct device *parent, int port_id) 80465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 80565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct Scsi_Host *shost = dev_to_shost(parent); 80665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_port *port; 80765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 80865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley port = kzalloc(sizeof(*port), GFP_KERNEL); 80965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (!port) 81065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley return NULL; 81165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 81265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley port->port_identifier = port_id; 81365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 81465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley device_initialize(&port->dev); 81565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 81665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley port->dev.parent = get_device(parent); 81765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley port->dev.release = sas_port_release; 81865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 81965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley mutex_init(&port->phy_list_mutex); 82065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley INIT_LIST_HEAD(&port->phy_list); 82165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 82265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (scsi_is_sas_expander_device(parent)) { 82365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_rphy *rphy = dev_to_rphy(parent); 82465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sprintf(port->dev.bus_id, "port-%d:%d:%d", shost->host_no, 82565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley rphy->scsi_target_id, port->port_identifier); 82665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley } else 82765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sprintf(port->dev.bus_id, "port-%d:%d", shost->host_no, 82865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley port->port_identifier); 82965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 83065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley transport_setup_device(&port->dev); 83165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 83265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley return port; 83365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 83465c92b09acf0218b64f1c7ba4fdabeb8b732c876James BottomleyEXPORT_SYMBOL(sas_port_alloc); 83565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 836c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley/** sas_port_alloc_num - allocate and initialize a SAS port structure 837c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley * 838c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley * @parent: parent device 839c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley * 840c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley * Allocates a SAS port structure and a number to go with it. This 841c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley * interface is really for adapters where the port number has no 842c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley * meansing, so the sas class should manage them. It will be added to 843c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley * the device tree below the device specified by @parent which must be 844c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley * either a Scsi_Host or a sas_expander_device. 845c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley * 846c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley * Returns %NULL on error 847c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley */ 848c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomleystruct sas_port *sas_port_alloc_num(struct device *parent) 849c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley{ 850c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley int index; 851c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley struct Scsi_Host *shost = dev_to_shost(parent); 852c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); 853c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley 854c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley /* FIXME: use idr for this eventually */ 855c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley mutex_lock(&sas_host->lock); 856c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley if (scsi_is_sas_expander_device(parent)) { 857c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley struct sas_rphy *rphy = dev_to_rphy(parent); 858c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley struct sas_expander_device *exp = rphy_to_expander_device(rphy); 859c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley 860c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley index = exp->next_port_id++; 861c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley } else 862c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley index = sas_host->next_port_id++; 863c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley mutex_unlock(&sas_host->lock); 864c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley return sas_port_alloc(parent, index); 865c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley} 866c9fefeb26457b87f4a767faefcf77321bb90db52James BottomleyEXPORT_SYMBOL(sas_port_alloc_num); 867c9fefeb26457b87f4a767faefcf77321bb90db52James Bottomley 86865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley/** 86965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * sas_port_add - add a SAS port to the device hierarchy 87065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @port: port to be added 87165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 87265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * publishes a port to the rest of the system 87365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley */ 87465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleyint sas_port_add(struct sas_port *port) 87565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 87665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley int error; 87765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 87865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley /* No phys should be added until this is made visible */ 87965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley BUG_ON(!list_empty(&port->phy_list)); 88065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 88165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley error = device_add(&port->dev); 88265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 88365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (error) 88465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley return error; 88565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 88665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley transport_add_device(&port->dev); 88765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley transport_configure_device(&port->dev); 88865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 88965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley return 0; 89065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 89165c92b09acf0218b64f1c7ba4fdabeb8b732c876James BottomleyEXPORT_SYMBOL(sas_port_add); 89265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 89365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley/** 894eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_port_free - free a SAS PORT 89565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @port: SAS PORT to free 89665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 89765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * Frees the specified SAS PORT. 89865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 89965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * Note: 90065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * This function must only be called on a PORT that has not 90165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * sucessfully been added using sas_port_add(). 90265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley */ 90365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleyvoid sas_port_free(struct sas_port *port) 90465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 90565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley transport_destroy_device(&port->dev); 90665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley put_device(&port->dev); 90765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 90865c92b09acf0218b64f1c7ba4fdabeb8b732c876James BottomleyEXPORT_SYMBOL(sas_port_free); 90965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 91065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley/** 911eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_port_delete - remove SAS PORT 91265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @port: SAS PORT to remove 91365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 91465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * Removes the specified SAS PORT. If the SAS PORT has an 91565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * associated phys, unlink them from the port as well. 91665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley */ 91765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleyvoid sas_port_delete(struct sas_port *port) 91865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 91965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct device *dev = &port->dev; 92065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_phy *phy, *tmp_phy; 92165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 92265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (port->rphy) { 92365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sas_rphy_delete(port->rphy); 92465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley port->rphy = NULL; 92565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley } 92665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 92765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley mutex_lock(&port->phy_list_mutex); 92865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley list_for_each_entry_safe(phy, tmp_phy, &port->phy_list, 92965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley port_siblings) { 93065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sas_port_delete_link(port, phy); 93165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley list_del_init(&phy->port_siblings); 93265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley } 93365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley mutex_unlock(&port->phy_list_mutex); 93465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 935a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley if (port->is_backlink) { 936a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley struct device *parent = port->dev.parent; 937a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley 938a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley sysfs_remove_link(&port->dev.kobj, parent->bus_id); 939a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley port->is_backlink = 0; 940a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley } 941a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley 94265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley transport_remove_device(dev); 94365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley device_del(dev); 94465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley transport_destroy_device(dev); 94565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley put_device(dev); 94665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 94765c92b09acf0218b64f1c7ba4fdabeb8b732c876James BottomleyEXPORT_SYMBOL(sas_port_delete); 94865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 94965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley/** 950eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * scsi_is_sas_port - check if a struct device represents a SAS port 95165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @dev: device to check 95265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 95365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * Returns: 95465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * %1 if the device represents a SAS Port, %0 else 95565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley */ 95665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleyint scsi_is_sas_port(const struct device *dev) 95765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 95865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley return dev->release == sas_port_release; 95965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 96065c92b09acf0218b64f1c7ba4fdabeb8b732c876James BottomleyEXPORT_SYMBOL(scsi_is_sas_port); 96165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 96265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley/** 96365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * sas_port_add_phy - add another phy to a port to form a wide port 96465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @port: port to add the phy to 96565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @phy: phy to add 96665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 96765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * When a port is initially created, it is empty (has no phys). All 96865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * ports must have at least one phy to operated, and all wide ports 96965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * must have at least two. The current code makes no difference 97065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * between ports and wide ports, but the only object that can be 97165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * connected to a remote device is a port, so ports must be formed on 97265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * all devices with phys if they're connected to anything. 97365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley */ 97465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleyvoid sas_port_add_phy(struct sas_port *port, struct sas_phy *phy) 97565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 97665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley mutex_lock(&port->phy_list_mutex); 97765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (unlikely(!list_empty(&phy->port_siblings))) { 97865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley /* make sure we're already on this port */ 97965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_phy *tmp; 98065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 98165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley list_for_each_entry(tmp, &port->phy_list, port_siblings) 98265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (tmp == phy) 98365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley break; 98465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley /* If this trips, you added a phy that was already 98565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * part of a different port */ 98665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (unlikely(tmp != phy)) { 98765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley dev_printk(KERN_ERR, &port->dev, "trying to add phy %s fails: it's already part of another port\n", phy->dev.bus_id); 98865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley BUG(); 98965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley } 99065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley } else { 99165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sas_port_create_link(port, phy); 99265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley list_add_tail(&phy->port_siblings, &port->phy_list); 99365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley port->num_phys++; 99465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley } 99565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley mutex_unlock(&port->phy_list_mutex); 99665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 99765c92b09acf0218b64f1c7ba4fdabeb8b732c876James BottomleyEXPORT_SYMBOL(sas_port_add_phy); 99865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 99965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley/** 100065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * sas_port_delete_phy - remove a phy from a port or wide port 100165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @port: port to remove the phy from 100265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * @phy: phy to remove 100365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * 100465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * This operation is used for tearing down ports again. It must be 100565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley * done to every port or wide port before calling sas_port_delete. 100665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley */ 100765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleyvoid sas_port_delete_phy(struct sas_port *port, struct sas_phy *phy) 100865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley{ 100965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley mutex_lock(&port->phy_list_mutex); 101065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sas_port_delete_link(port, phy); 101165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley list_del_init(&phy->port_siblings); 101265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley port->num_phys--; 101365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley mutex_unlock(&port->phy_list_mutex); 101465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley} 101565c92b09acf0218b64f1c7ba4fdabeb8b732c876James BottomleyEXPORT_SYMBOL(sas_port_delete_phy); 101665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 1017a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomleyvoid sas_port_mark_backlink(struct sas_port *port) 1018a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley{ 101921434966462d57145c861b43f6206d945ac57630Darrick J. Wong int res; 1020a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley struct device *parent = port->dev.parent->parent->parent; 1021a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley 1022a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley if (port->is_backlink) 1023a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley return; 1024a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley port->is_backlink = 1; 102521434966462d57145c861b43f6206d945ac57630Darrick J. Wong res = sysfs_create_link(&port->dev.kobj, &parent->kobj, 102621434966462d57145c861b43f6206d945ac57630Darrick J. Wong parent->bus_id); 102721434966462d57145c861b43f6206d945ac57630Darrick J. Wong if (res) 102821434966462d57145c861b43f6206d945ac57630Darrick J. Wong goto err; 102921434966462d57145c861b43f6206d945ac57630Darrick J. Wong return; 103021434966462d57145c861b43f6206d945ac57630Darrick J. Wongerr: 103121434966462d57145c861b43f6206d945ac57630Darrick J. Wong printk(KERN_ERR "%s: Cannot create port backlink, err=%d\n", 103221434966462d57145c861b43f6206d945ac57630Darrick J. Wong __FUNCTION__, res); 1033a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley 1034a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley} 1035a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames BottomleyEXPORT_SYMBOL(sas_port_mark_backlink); 1036a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7fJames Bottomley 103765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley/* 1038c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * SAS remote PHY attributes. 1039c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 1040c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1041c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_rphy_show_simple(field, name, format_string, cast) \ 1042c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic ssize_t \ 1043ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_rphy_##name(struct device *dev, \ 1044ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 1045c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ \ 1046ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_rphy *rphy = transport_class_to_rphy(dev); \ 1047c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig \ 1048c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return snprintf(buf, 20, format_string, cast rphy->field); \ 1049c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1050c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1051c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_rphy_simple_attr(field, name, format_string, type) \ 1052c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig sas_rphy_show_simple(field, name, format_string, (type)) \ 1053ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic SAS_DEVICE_ATTR(rphy, name, S_IRUGO, \ 1054c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig show_sas_rphy_##name, NULL) 1055c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1056c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_rphy_show_protocol(field, name) \ 1057c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic ssize_t \ 1058ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_rphy_##name(struct device *dev, \ 1059ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 1060c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ \ 1061ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_rphy *rphy = transport_class_to_rphy(dev); \ 1062c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig \ 1063c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!rphy->field) \ 1064c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return snprintf(buf, 20, "none\n"); \ 1065c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return get_sas_protocol_names(rphy->field, buf); \ 1066c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1067c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1068c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig#define sas_rphy_protocol_attr(field, name) \ 1069c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig sas_rphy_show_protocol(field, name) \ 1070ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic SAS_DEVICE_ATTR(rphy, name, S_IRUGO, \ 1071c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig show_sas_rphy_##name, NULL) 1072c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1073c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic ssize_t 1074ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_rphy_device_type(struct device *dev, 1075ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 1076c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 1077ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_rphy *rphy = transport_class_to_rphy(dev); 1078c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1079c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!rphy->identify.device_type) 1080c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return snprintf(buf, 20, "none\n"); 1081c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return get_sas_device_type_names( 1082c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig rphy->identify.device_type, buf); 1083c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1084c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1085ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic SAS_DEVICE_ATTR(rphy, device_type, S_IRUGO, 1086c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig show_sas_rphy_device_type, NULL); 1087c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1088a012564136a665f8d63443c057ba368572b483dfChristoph Hellwigstatic ssize_t 1089ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_rphy_enclosure_identifier(struct device *dev, 1090ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 1091a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig{ 1092ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_rphy *rphy = transport_class_to_rphy(dev); 1093a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig struct sas_phy *phy = dev_to_phy(rphy->dev.parent); 1094a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); 1095a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig struct sas_internal *i = to_sas_internal(shost->transportt); 1096a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig u64 identifier; 1097a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig int error; 1098a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig 1099a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig /* 1100a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig * Only devices behind an expander are supported, because the 1101a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig * enclosure identifier is a SMP feature. 1102a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig */ 1103f4ad7b5807385ad1fed0347d966e51a797cd1013James Bottomley if (scsi_is_sas_phy_local(phy)) 1104a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig return -EINVAL; 1105a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig 1106a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig error = i->f->get_enclosure_identifier(rphy, &identifier); 1107a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig if (error) 1108a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig return error; 1109a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig return sprintf(buf, "0x%llx\n", (unsigned long long)identifier); 1110a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig} 1111a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig 1112ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic SAS_DEVICE_ATTR(rphy, enclosure_identifier, S_IRUGO, 1113a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig show_sas_rphy_enclosure_identifier, NULL); 1114a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig 1115a012564136a665f8d63443c057ba368572b483dfChristoph Hellwigstatic ssize_t 1116ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_rphy_bay_identifier(struct device *dev, 1117ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 1118a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig{ 1119ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_rphy *rphy = transport_class_to_rphy(dev); 1120a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig struct sas_phy *phy = dev_to_phy(rphy->dev.parent); 1121a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); 1122a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig struct sas_internal *i = to_sas_internal(shost->transportt); 1123a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig int val; 1124a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig 1125f4ad7b5807385ad1fed0347d966e51a797cd1013James Bottomley if (scsi_is_sas_phy_local(phy)) 1126a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig return -EINVAL; 1127a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig 1128a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig val = i->f->get_bay_identifier(rphy); 1129a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig if (val < 0) 1130a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig return val; 1131a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig return sprintf(buf, "%d\n", val); 1132a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig} 1133a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig 1134ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic SAS_DEVICE_ATTR(rphy, bay_identifier, S_IRUGO, 1135a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig show_sas_rphy_bay_identifier, NULL); 1136a012564136a665f8d63443c057ba368572b483dfChristoph Hellwig 1137c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_rphy_protocol_attr(identify.initiator_port_protocols, 1138c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig initiator_port_protocols); 1139c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_rphy_protocol_attr(identify.target_port_protocols, target_port_protocols); 1140c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_rphy_simple_attr(identify.sas_address, sas_address, "0x%016llx\n", 1141c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig unsigned long long); 1142c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_rphy_simple_attr(identify.phy_identifier, phy_identifier, "%d\n", u8); 1143c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 114442ab03609cca4ef5079e248296f015650c626899James Bottomley/* only need 8 bytes of data plus header (4 or 8) */ 114542ab03609cca4ef5079e248296f015650c626899James Bottomley#define BUF_SIZE 64 114642ab03609cca4ef5079e248296f015650c626899James Bottomley 114742ab03609cca4ef5079e248296f015650c626899James Bottomleyint sas_read_port_mode_page(struct scsi_device *sdev) 114842ab03609cca4ef5079e248296f015650c626899James Bottomley{ 114942ab03609cca4ef5079e248296f015650c626899James Bottomley char *buffer = kzalloc(BUF_SIZE, GFP_KERNEL), *msdata; 115042ab03609cca4ef5079e248296f015650c626899James Bottomley struct sas_rphy *rphy = target_to_rphy(sdev->sdev_target); 115142ab03609cca4ef5079e248296f015650c626899James Bottomley struct sas_end_device *rdev; 115242ab03609cca4ef5079e248296f015650c626899James Bottomley struct scsi_mode_data mode_data; 115342ab03609cca4ef5079e248296f015650c626899James Bottomley int res, error; 115442ab03609cca4ef5079e248296f015650c626899James Bottomley 115542ab03609cca4ef5079e248296f015650c626899James Bottomley BUG_ON(rphy->identify.device_type != SAS_END_DEVICE); 115642ab03609cca4ef5079e248296f015650c626899James Bottomley 115742ab03609cca4ef5079e248296f015650c626899James Bottomley rdev = rphy_to_end_device(rphy); 115842ab03609cca4ef5079e248296f015650c626899James Bottomley 115942ab03609cca4ef5079e248296f015650c626899James Bottomley if (!buffer) 116042ab03609cca4ef5079e248296f015650c626899James Bottomley return -ENOMEM; 116142ab03609cca4ef5079e248296f015650c626899James Bottomley 116242ab03609cca4ef5079e248296f015650c626899James Bottomley res = scsi_mode_sense(sdev, 1, 0x19, buffer, BUF_SIZE, 30*HZ, 3, 116342ab03609cca4ef5079e248296f015650c626899James Bottomley &mode_data, NULL); 116442ab03609cca4ef5079e248296f015650c626899James Bottomley 116542ab03609cca4ef5079e248296f015650c626899James Bottomley error = -EINVAL; 116642ab03609cca4ef5079e248296f015650c626899James Bottomley if (!scsi_status_is_good(res)) 116742ab03609cca4ef5079e248296f015650c626899James Bottomley goto out; 116842ab03609cca4ef5079e248296f015650c626899James Bottomley 116942ab03609cca4ef5079e248296f015650c626899James Bottomley msdata = buffer + mode_data.header_length + 117042ab03609cca4ef5079e248296f015650c626899James Bottomley mode_data.block_descriptor_length; 117142ab03609cca4ef5079e248296f015650c626899James Bottomley 117242ab03609cca4ef5079e248296f015650c626899James Bottomley if (msdata - buffer > BUF_SIZE - 8) 117342ab03609cca4ef5079e248296f015650c626899James Bottomley goto out; 117442ab03609cca4ef5079e248296f015650c626899James Bottomley 117542ab03609cca4ef5079e248296f015650c626899James Bottomley error = 0; 117642ab03609cca4ef5079e248296f015650c626899James Bottomley 117742ab03609cca4ef5079e248296f015650c626899James Bottomley rdev->ready_led_meaning = msdata[2] & 0x10 ? 1 : 0; 117842ab03609cca4ef5079e248296f015650c626899James Bottomley rdev->I_T_nexus_loss_timeout = (msdata[4] << 8) + msdata[5]; 117942ab03609cca4ef5079e248296f015650c626899James Bottomley rdev->initiator_response_timeout = (msdata[6] << 8) + msdata[7]; 118042ab03609cca4ef5079e248296f015650c626899James Bottomley 118142ab03609cca4ef5079e248296f015650c626899James Bottomley out: 118242ab03609cca4ef5079e248296f015650c626899James Bottomley kfree(buffer); 118342ab03609cca4ef5079e248296f015650c626899James Bottomley return error; 118442ab03609cca4ef5079e248296f015650c626899James Bottomley} 118542ab03609cca4ef5079e248296f015650c626899James BottomleyEXPORT_SYMBOL(sas_read_port_mode_page); 118642ab03609cca4ef5079e248296f015650c626899James Bottomley 118779cb1819e231f811211133a09a5382cb89d7ec67James Bottomleystatic DECLARE_TRANSPORT_CLASS(sas_end_dev_class, 118879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley "sas_end_device", NULL, NULL, NULL); 118979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 119042ab03609cca4ef5079e248296f015650c626899James Bottomley#define sas_end_dev_show_simple(field, name, format_string, cast) \ 119142ab03609cca4ef5079e248296f015650c626899James Bottomleystatic ssize_t \ 1192ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_end_dev_##name(struct device *dev, \ 1193ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 119442ab03609cca4ef5079e248296f015650c626899James Bottomley{ \ 1195ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_rphy *rphy = transport_class_to_rphy(dev); \ 119642ab03609cca4ef5079e248296f015650c626899James Bottomley struct sas_end_device *rdev = rphy_to_end_device(rphy); \ 119742ab03609cca4ef5079e248296f015650c626899James Bottomley \ 119842ab03609cca4ef5079e248296f015650c626899James Bottomley return snprintf(buf, 20, format_string, cast rdev->field); \ 119942ab03609cca4ef5079e248296f015650c626899James Bottomley} 120042ab03609cca4ef5079e248296f015650c626899James Bottomley 120142ab03609cca4ef5079e248296f015650c626899James Bottomley#define sas_end_dev_simple_attr(field, name, format_string, type) \ 120242ab03609cca4ef5079e248296f015650c626899James Bottomley sas_end_dev_show_simple(field, name, format_string, (type)) \ 1203ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic SAS_DEVICE_ATTR(end_dev, name, S_IRUGO, \ 120442ab03609cca4ef5079e248296f015650c626899James Bottomley show_sas_end_dev_##name, NULL) 120542ab03609cca4ef5079e248296f015650c626899James Bottomley 120642ab03609cca4ef5079e248296f015650c626899James Bottomleysas_end_dev_simple_attr(ready_led_meaning, ready_led_meaning, "%d\n", int); 120742ab03609cca4ef5079e248296f015650c626899James Bottomleysas_end_dev_simple_attr(I_T_nexus_loss_timeout, I_T_nexus_loss_timeout, 120842ab03609cca4ef5079e248296f015650c626899James Bottomley "%d\n", int); 120942ab03609cca4ef5079e248296f015650c626899James Bottomleysas_end_dev_simple_attr(initiator_response_timeout, initiator_response_timeout, 121042ab03609cca4ef5079e248296f015650c626899James Bottomley "%d\n", int); 121142ab03609cca4ef5079e248296f015650c626899James Bottomley 121279cb1819e231f811211133a09a5382cb89d7ec67James Bottomleystatic DECLARE_TRANSPORT_CLASS(sas_expander_class, 121379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley "sas_expander", NULL, NULL, NULL); 121479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 121579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley#define sas_expander_show_simple(field, name, format_string, cast) \ 121679cb1819e231f811211133a09a5382cb89d7ec67James Bottomleystatic ssize_t \ 1217ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_sas_expander_##name(struct device *dev, \ 1218ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 121979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley{ \ 1220ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct sas_rphy *rphy = transport_class_to_rphy(dev); \ 122179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley struct sas_expander_device *edev = rphy_to_expander_device(rphy); \ 122279cb1819e231f811211133a09a5382cb89d7ec67James Bottomley \ 122379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley return snprintf(buf, 20, format_string, cast edev->field); \ 122479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley} 122579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 122679cb1819e231f811211133a09a5382cb89d7ec67James Bottomley#define sas_expander_simple_attr(field, name, format_string, type) \ 122779cb1819e231f811211133a09a5382cb89d7ec67James Bottomley sas_expander_show_simple(field, name, format_string, (type)) \ 1228ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic SAS_DEVICE_ATTR(expander, name, S_IRUGO, \ 122979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley show_sas_expander_##name, NULL) 123079cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 123179cb1819e231f811211133a09a5382cb89d7ec67James Bottomleysas_expander_simple_attr(vendor_id, vendor_id, "%s\n", char *); 123279cb1819e231f811211133a09a5382cb89d7ec67James Bottomleysas_expander_simple_attr(product_id, product_id, "%s\n", char *); 123379cb1819e231f811211133a09a5382cb89d7ec67James Bottomleysas_expander_simple_attr(product_rev, product_rev, "%s\n", char *); 123479cb1819e231f811211133a09a5382cb89d7ec67James Bottomleysas_expander_simple_attr(component_vendor_id, component_vendor_id, 123579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley "%s\n", char *); 123679cb1819e231f811211133a09a5382cb89d7ec67James Bottomleysas_expander_simple_attr(component_id, component_id, "%u\n", unsigned int); 123779cb1819e231f811211133a09a5382cb89d7ec67James Bottomleysas_expander_simple_attr(component_revision_id, component_revision_id, "%u\n", 123879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley unsigned int); 123979cb1819e231f811211133a09a5382cb89d7ec67James Bottomleysas_expander_simple_attr(level, level, "%d\n", int); 124042ab03609cca4ef5079e248296f015650c626899James Bottomley 1241c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic DECLARE_TRANSPORT_CLASS(sas_rphy_class, 12422f8600dff2b140096a7df781884e918a16aa90e0James Bottomley "sas_device", NULL, NULL, NULL); 1243c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1244c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic int sas_rphy_match(struct attribute_container *cont, struct device *dev) 1245c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 1246c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct Scsi_Host *shost; 1247c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_internal *i; 1248c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1249c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!scsi_is_sas_rphy(dev)) 1250c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 1251c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig shost = dev_to_shost(dev->parent->parent); 1252c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1253c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!shost->transportt) 1254c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 1255c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (shost->transportt->host_attrs.ac.class != 1256c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig &sas_host_class.class) 1257c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 1258c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1259c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i = to_sas_internal(shost->transportt); 1260c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return &i->rphy_attr_cont.ac == cont; 1261c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1262c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 126342ab03609cca4ef5079e248296f015650c626899James Bottomleystatic int sas_end_dev_match(struct attribute_container *cont, 126442ab03609cca4ef5079e248296f015650c626899James Bottomley struct device *dev) 126542ab03609cca4ef5079e248296f015650c626899James Bottomley{ 126642ab03609cca4ef5079e248296f015650c626899James Bottomley struct Scsi_Host *shost; 126742ab03609cca4ef5079e248296f015650c626899James Bottomley struct sas_internal *i; 126842ab03609cca4ef5079e248296f015650c626899James Bottomley struct sas_rphy *rphy; 126942ab03609cca4ef5079e248296f015650c626899James Bottomley 127042ab03609cca4ef5079e248296f015650c626899James Bottomley if (!scsi_is_sas_rphy(dev)) 127142ab03609cca4ef5079e248296f015650c626899James Bottomley return 0; 127242ab03609cca4ef5079e248296f015650c626899James Bottomley shost = dev_to_shost(dev->parent->parent); 127342ab03609cca4ef5079e248296f015650c626899James Bottomley rphy = dev_to_rphy(dev); 127442ab03609cca4ef5079e248296f015650c626899James Bottomley 127542ab03609cca4ef5079e248296f015650c626899James Bottomley if (!shost->transportt) 127642ab03609cca4ef5079e248296f015650c626899James Bottomley return 0; 127742ab03609cca4ef5079e248296f015650c626899James Bottomley if (shost->transportt->host_attrs.ac.class != 127842ab03609cca4ef5079e248296f015650c626899James Bottomley &sas_host_class.class) 127942ab03609cca4ef5079e248296f015650c626899James Bottomley return 0; 128042ab03609cca4ef5079e248296f015650c626899James Bottomley 128142ab03609cca4ef5079e248296f015650c626899James Bottomley i = to_sas_internal(shost->transportt); 128242ab03609cca4ef5079e248296f015650c626899James Bottomley return &i->end_dev_attr_cont.ac == cont && 12832f8600dff2b140096a7df781884e918a16aa90e0James Bottomley rphy->identify.device_type == SAS_END_DEVICE; 128442ab03609cca4ef5079e248296f015650c626899James Bottomley} 128542ab03609cca4ef5079e248296f015650c626899James Bottomley 128679cb1819e231f811211133a09a5382cb89d7ec67James Bottomleystatic int sas_expander_match(struct attribute_container *cont, 128779cb1819e231f811211133a09a5382cb89d7ec67James Bottomley struct device *dev) 128879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley{ 128979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley struct Scsi_Host *shost; 129079cb1819e231f811211133a09a5382cb89d7ec67James Bottomley struct sas_internal *i; 129179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley struct sas_rphy *rphy; 129279cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 129379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley if (!scsi_is_sas_rphy(dev)) 129479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley return 0; 129579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley shost = dev_to_shost(dev->parent->parent); 129679cb1819e231f811211133a09a5382cb89d7ec67James Bottomley rphy = dev_to_rphy(dev); 129779cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 129879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley if (!shost->transportt) 129979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley return 0; 130079cb1819e231f811211133a09a5382cb89d7ec67James Bottomley if (shost->transportt->host_attrs.ac.class != 130179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley &sas_host_class.class) 130279cb1819e231f811211133a09a5382cb89d7ec67James Bottomley return 0; 130379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 130479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley i = to_sas_internal(shost->transportt); 130579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley return &i->expander_attr_cont.ac == cont && 130679cb1819e231f811211133a09a5382cb89d7ec67James Bottomley (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE || 13072f8600dff2b140096a7df781884e918a16aa90e0James Bottomley rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE); 130879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley} 130979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 13102f8600dff2b140096a7df781884e918a16aa90e0James Bottomleystatic void sas_expander_release(struct device *dev) 1311c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 1312c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_rphy *rphy = dev_to_rphy(dev); 13132f8600dff2b140096a7df781884e918a16aa90e0James Bottomley struct sas_expander_device *edev = rphy_to_expander_device(rphy); 1314c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 131593c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori if (rphy->q) 131693c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori blk_cleanup_queue(rphy->q); 131793c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori 1318c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig put_device(dev->parent); 13192f8600dff2b140096a7df781884e918a16aa90e0James Bottomley kfree(edev); 1320c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1321c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 13222f8600dff2b140096a7df781884e918a16aa90e0James Bottomleystatic void sas_end_device_release(struct device *dev) 1323c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 13242f8600dff2b140096a7df781884e918a16aa90e0James Bottomley struct sas_rphy *rphy = dev_to_rphy(dev); 13252f8600dff2b140096a7df781884e918a16aa90e0James Bottomley struct sas_end_device *edev = rphy_to_end_device(rphy); 1326c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 132793c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori if (rphy->q) 132893c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori blk_cleanup_queue(rphy->q); 132993c20a59af4624aedf53f8320606b355aa951bc1FUJITA Tomonori 13302f8600dff2b140096a7df781884e918a16aa90e0James Bottomley put_device(dev->parent); 13312f8600dff2b140096a7df781884e918a16aa90e0James Bottomley kfree(edev); 1332c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1333c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1334c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 1335c5943d36aebb79589ac3983eec418bbeca897573James Bottomley * sas_rphy_initialize - common rphy intialization 1336c5943d36aebb79589ac3983eec418bbeca897573James Bottomley * @rphy: rphy to initialise 1337c5943d36aebb79589ac3983eec418bbeca897573James Bottomley * 1338c5943d36aebb79589ac3983eec418bbeca897573James Bottomley * Used by both sas_end_device_alloc() and sas_expander_alloc() to 1339c5943d36aebb79589ac3983eec418bbeca897573James Bottomley * initialise the common rphy component of each. 1340c5943d36aebb79589ac3983eec418bbeca897573James Bottomley */ 1341c5943d36aebb79589ac3983eec418bbeca897573James Bottomleystatic void sas_rphy_initialize(struct sas_rphy *rphy) 1342c5943d36aebb79589ac3983eec418bbeca897573James Bottomley{ 1343c5943d36aebb79589ac3983eec418bbeca897573James Bottomley INIT_LIST_HEAD(&rphy->list); 1344c5943d36aebb79589ac3983eec418bbeca897573James Bottomley} 1345c5943d36aebb79589ac3983eec418bbeca897573James Bottomley 1346c5943d36aebb79589ac3983eec418bbeca897573James Bottomley/** 134742ab03609cca4ef5079e248296f015650c626899James Bottomley * sas_end_device_alloc - allocate an rphy for an end device 1348eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @parent: which port 134942ab03609cca4ef5079e248296f015650c626899James Bottomley * 135042ab03609cca4ef5079e248296f015650c626899James Bottomley * Allocates an SAS remote PHY structure, connected to @parent. 135142ab03609cca4ef5079e248296f015650c626899James Bottomley * 135242ab03609cca4ef5079e248296f015650c626899James Bottomley * Returns: 135342ab03609cca4ef5079e248296f015650c626899James Bottomley * SAS PHY allocated or %NULL if the allocation failed. 135442ab03609cca4ef5079e248296f015650c626899James Bottomley */ 135565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleystruct sas_rphy *sas_end_device_alloc(struct sas_port *parent) 135642ab03609cca4ef5079e248296f015650c626899James Bottomley{ 135742ab03609cca4ef5079e248296f015650c626899James Bottomley struct Scsi_Host *shost = dev_to_shost(&parent->dev); 135842ab03609cca4ef5079e248296f015650c626899James Bottomley struct sas_end_device *rdev; 135942ab03609cca4ef5079e248296f015650c626899James Bottomley 136042ab03609cca4ef5079e248296f015650c626899James Bottomley rdev = kzalloc(sizeof(*rdev), GFP_KERNEL); 136142ab03609cca4ef5079e248296f015650c626899James Bottomley if (!rdev) { 136242ab03609cca4ef5079e248296f015650c626899James Bottomley return NULL; 136342ab03609cca4ef5079e248296f015650c626899James Bottomley } 136442ab03609cca4ef5079e248296f015650c626899James Bottomley 136542ab03609cca4ef5079e248296f015650c626899James Bottomley device_initialize(&rdev->rphy.dev); 136642ab03609cca4ef5079e248296f015650c626899James Bottomley rdev->rphy.dev.parent = get_device(&parent->dev); 13672f8600dff2b140096a7df781884e918a16aa90e0James Bottomley rdev->rphy.dev.release = sas_end_device_release; 136865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (scsi_is_sas_expander_device(parent->dev.parent)) { 136965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_rphy *rphy = dev_to_rphy(parent->dev.parent); 137065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sprintf(rdev->rphy.dev.bus_id, "end_device-%d:%d:%d", 137165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley shost->host_no, rphy->scsi_target_id, parent->port_identifier); 137265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley } else 137365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sprintf(rdev->rphy.dev.bus_id, "end_device-%d:%d", 137465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley shost->host_no, parent->port_identifier); 137542ab03609cca4ef5079e248296f015650c626899James Bottomley rdev->rphy.identify.device_type = SAS_END_DEVICE; 1376c5943d36aebb79589ac3983eec418bbeca897573James Bottomley sas_rphy_initialize(&rdev->rphy); 137742ab03609cca4ef5079e248296f015650c626899James Bottomley transport_setup_device(&rdev->rphy.dev); 137842ab03609cca4ef5079e248296f015650c626899James Bottomley 137942ab03609cca4ef5079e248296f015650c626899James Bottomley return &rdev->rphy; 138042ab03609cca4ef5079e248296f015650c626899James Bottomley} 138142ab03609cca4ef5079e248296f015650c626899James BottomleyEXPORT_SYMBOL(sas_end_device_alloc); 138242ab03609cca4ef5079e248296f015650c626899James Bottomley 138379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley/** 138479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley * sas_expander_alloc - allocate an rphy for an end device 1385eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @parent: which port 1386eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @type: SAS_EDGE_EXPANDER_DEVICE or SAS_FANOUT_EXPANDER_DEVICE 138779cb1819e231f811211133a09a5382cb89d7ec67James Bottomley * 138879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley * Allocates an SAS remote PHY structure, connected to @parent. 138979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley * 139079cb1819e231f811211133a09a5382cb89d7ec67James Bottomley * Returns: 139179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley * SAS PHY allocated or %NULL if the allocation failed. 139279cb1819e231f811211133a09a5382cb89d7ec67James Bottomley */ 139365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomleystruct sas_rphy *sas_expander_alloc(struct sas_port *parent, 139479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley enum sas_device_type type) 139579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley{ 139679cb1819e231f811211133a09a5382cb89d7ec67James Bottomley struct Scsi_Host *shost = dev_to_shost(&parent->dev); 139779cb1819e231f811211133a09a5382cb89d7ec67James Bottomley struct sas_expander_device *rdev; 139879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); 139979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 140079cb1819e231f811211133a09a5382cb89d7ec67James Bottomley BUG_ON(type != SAS_EDGE_EXPANDER_DEVICE && 140179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley type != SAS_FANOUT_EXPANDER_DEVICE); 140279cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 140379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley rdev = kzalloc(sizeof(*rdev), GFP_KERNEL); 140479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley if (!rdev) { 140579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley return NULL; 140679cb1819e231f811211133a09a5382cb89d7ec67James Bottomley } 140779cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 140879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley device_initialize(&rdev->rphy.dev); 140979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley rdev->rphy.dev.parent = get_device(&parent->dev); 14102f8600dff2b140096a7df781884e918a16aa90e0James Bottomley rdev->rphy.dev.release = sas_expander_release; 141179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley mutex_lock(&sas_host->lock); 141279cb1819e231f811211133a09a5382cb89d7ec67James Bottomley rdev->rphy.scsi_target_id = sas_host->next_expander_id++; 141379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley mutex_unlock(&sas_host->lock); 141479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley sprintf(rdev->rphy.dev.bus_id, "expander-%d:%d", 141579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley shost->host_no, rdev->rphy.scsi_target_id); 141679cb1819e231f811211133a09a5382cb89d7ec67James Bottomley rdev->rphy.identify.device_type = type; 1417c5943d36aebb79589ac3983eec418bbeca897573James Bottomley sas_rphy_initialize(&rdev->rphy); 141879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley transport_setup_device(&rdev->rphy.dev); 141979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 142079cb1819e231f811211133a09a5382cb89d7ec67James Bottomley return &rdev->rphy; 142179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley} 142279cb1819e231f811211133a09a5382cb89d7ec67James BottomleyEXPORT_SYMBOL(sas_expander_alloc); 142342ab03609cca4ef5079e248296f015650c626899James Bottomley 142442ab03609cca4ef5079e248296f015650c626899James Bottomley/** 1425eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_rphy_add - add a SAS remote PHY to the device hierarchy 1426c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * @rphy: The remote PHY to be added 1427c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 1428c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Publishes a SAS remote PHY to the rest of the system. 1429c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 1430c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigint sas_rphy_add(struct sas_rphy *rphy) 1431c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 143265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_port *parent = dev_to_sas_port(rphy->dev.parent); 1433c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct Scsi_Host *shost = dev_to_shost(parent->dev.parent); 1434c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); 1435c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_identify *identify = &rphy->identify; 1436c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig int error; 1437c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1438c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (parent->rphy) 1439c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return -ENXIO; 1440c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig parent->rphy = rphy; 1441c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1442c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig error = device_add(&rphy->dev); 1443c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (error) 1444c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return error; 1445c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_add_device(&rphy->dev); 1446c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_configure_device(&rphy->dev); 144739dca558a5b52b63e49bc234a7e887be092aa690James Bottomley if (sas_bsg_initialize(shost, rphy)) 144839dca558a5b52b63e49bc234a7e887be092aa690James Bottomley printk("fail to a bsg device %s\n", rphy->dev.bus_id); 144939dca558a5b52b63e49bc234a7e887be092aa690James Bottomley 1450c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1451e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig mutex_lock(&sas_host->lock); 1452c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig list_add_tail(&rphy->list, &sas_host->rphy_list); 1453c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (identify->device_type == SAS_END_DEVICE && 1454c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig (identify->target_port_protocols & 1455c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig (SAS_PROTOCOL_SSP|SAS_PROTOCOL_STP|SAS_PROTOCOL_SATA))) 1456c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig rphy->scsi_target_id = sas_host->next_target_id++; 14577676f83aeb774e7a3abe6af06ec92b29488b5b79James Bottomley else if (identify->device_type == SAS_END_DEVICE) 14587676f83aeb774e7a3abe6af06ec92b29488b5b79James Bottomley rphy->scsi_target_id = -1; 1459e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig mutex_unlock(&sas_host->lock); 1460c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 146179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley if (identify->device_type == SAS_END_DEVICE && 146279cb1819e231f811211133a09a5382cb89d7ec67James Bottomley rphy->scsi_target_id != -1) { 1463e8bf39417b578a11e2ee2cd16e794a5b2d40757bJames Bottomley scsi_scan_target(&rphy->dev, 0, 1464c8490f3a77805d04321d9e44486a679801a035b8Darrick J. Wong rphy->scsi_target_id, SCAN_WILD_CARD, 0); 1465c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig } 1466c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1467c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 1468c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1469c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(sas_rphy_add); 1470c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1471c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 1472eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_rphy_free - free a SAS remote PHY 1473eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @rphy: SAS remote PHY to free 1474c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 1475c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Frees the specified SAS remote PHY. 1476c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 1477c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Note: 1478c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * This function must only be called on a remote 1479c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * PHY that has not sucessfully been added using 14806f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong * sas_rphy_add() (or has been sas_rphy_remove()'d) 1481c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 1482c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigvoid sas_rphy_free(struct sas_rphy *rphy) 1483c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 148492aab6464be735139f9ea38fd039c3b84c722630Mike Anderson struct device *dev = &rphy->dev; 1485c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); 1486c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); 1487c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1488e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig mutex_lock(&sas_host->lock); 1489c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig list_del(&rphy->list); 1490e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig mutex_unlock(&sas_host->lock); 1491c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1492b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley sas_bsg_remove(shost, rphy); 1493b6aff66953a29e40e0683be9b39c369ade143a5bJames Bottomley 149492aab6464be735139f9ea38fd039c3b84c722630Mike Anderson transport_destroy_device(dev); 14952f8600dff2b140096a7df781884e918a16aa90e0James Bottomley 149692aab6464be735139f9ea38fd039c3b84c722630Mike Anderson put_device(dev); 1497c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1498c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(sas_rphy_free); 1499c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1500c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 1501eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_rphy_delete - remove and free SAS remote PHY 15026f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong * @rphy: SAS remote PHY to remove and free 1503c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 15046f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong * Removes the specified SAS remote PHY and frees it. 1505c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 1506c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigvoid 1507c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_rphy_delete(struct sas_rphy *rphy) 1508c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 15096f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong sas_rphy_remove(rphy); 15106f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong sas_rphy_free(rphy); 15116f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong} 15126f63caae2172e97e528b58319480217b0b36542eDarrick J. WongEXPORT_SYMBOL(sas_rphy_delete); 15136f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong 15146f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong/** 1515eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_rphy_remove - remove SAS remote PHY 15166f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong * @rphy: SAS remote phy to remove 15176f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong * 15186f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong * Removes the specified SAS remote PHY. 15196f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong */ 15206f63caae2172e97e528b58319480217b0b36542eDarrick J. Wongvoid 15216f63caae2172e97e528b58319480217b0b36542eDarrick J. Wongsas_rphy_remove(struct sas_rphy *rphy) 15226f63caae2172e97e528b58319480217b0b36542eDarrick J. Wong{ 1523c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct device *dev = &rphy->dev; 152465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley struct sas_port *parent = dev_to_sas_port(dev->parent); 1525c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1526d4054239929479907f20b9d68c905589125ad343Christoph Hellwig switch (rphy->identify.device_type) { 1527d4054239929479907f20b9d68c905589125ad343Christoph Hellwig case SAS_END_DEVICE: 1528d4054239929479907f20b9d68c905589125ad343Christoph Hellwig scsi_remove_target(dev); 1529d4054239929479907f20b9d68c905589125ad343Christoph Hellwig break; 1530d4054239929479907f20b9d68c905589125ad343Christoph Hellwig case SAS_EDGE_EXPANDER_DEVICE: 1531d4054239929479907f20b9d68c905589125ad343Christoph Hellwig case SAS_FANOUT_EXPANDER_DEVICE: 153265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley sas_remove_children(dev); 1533d4054239929479907f20b9d68c905589125ad343Christoph Hellwig break; 1534d4054239929479907f20b9d68c905589125ad343Christoph Hellwig default: 1535d4054239929479907f20b9d68c905589125ad343Christoph Hellwig break; 1536d4054239929479907f20b9d68c905589125ad343Christoph Hellwig } 1537c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1538fe8b2304e54552cea113318e2f66c45628130fdcChristoph Hellwig transport_remove_device(dev); 1539fe8b2304e54552cea113318e2f66c45628130fdcChristoph Hellwig device_del(dev); 1540c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 154133b114e935a2202206e224dd2c695cee5a5986bfChristoph Hellwig parent->rphy = NULL; 1542c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 15436f63caae2172e97e528b58319480217b0b36542eDarrick J. WongEXPORT_SYMBOL(sas_rphy_remove); 1544c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1545c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 1546eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * scsi_is_sas_rphy - check if a struct device represents a SAS remote PHY 1547c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * @dev: device to check 1548c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * 1549c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Returns: 1550c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * %1 if the device represents a SAS remote PHY, %0 else 1551c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 1552c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigint scsi_is_sas_rphy(const struct device *dev) 1553c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 15542f8600dff2b140096a7df781884e918a16aa90e0James Bottomley return dev->release == sas_end_device_release || 15552f8600dff2b140096a7df781884e918a16aa90e0James Bottomley dev->release == sas_expander_release; 1556c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1557c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(scsi_is_sas_rphy); 1558c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1559c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1560c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/* 1561c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * SCSI scan helper 1562c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 1563c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1564e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwigstatic int sas_user_scan(struct Scsi_Host *shost, uint channel, 1565e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig uint id, uint lun) 1566c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 1567c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); 1568c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_rphy *rphy; 1569c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1570e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig mutex_lock(&sas_host->lock); 1571c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig list_for_each_entry(rphy, &sas_host->rphy_list, list) { 15726d99a3f372181160a56d7b1ee3259dbe03663f0dJames Bottomley if (rphy->identify.device_type != SAS_END_DEVICE || 15736d99a3f372181160a56d7b1ee3259dbe03663f0dJames Bottomley rphy->scsi_target_id == -1) 1574e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig continue; 1575e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig 1576e8bf39417b578a11e2ee2cd16e794a5b2d40757bJames Bottomley if ((channel == SCAN_WILD_CARD || channel == 0) && 1577e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig (id == SCAN_WILD_CARD || id == rphy->scsi_target_id)) { 1578e8bf39417b578a11e2ee2cd16e794a5b2d40757bJames Bottomley scsi_scan_target(&rphy->dev, 0, 1579e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig rphy->scsi_target_id, lun, 1); 1580e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig } 1581c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig } 1582e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig mutex_unlock(&sas_host->lock); 1583c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1584e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig return 0; 1585c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1586c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1587c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1588c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/* 1589c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * Setup / Teardown code 1590c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 1591c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1592d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley#define SETUP_TEMPLATE(attrb, field, perm, test) \ 1593ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_##attrb[count] = dev_attr_##field; \ 159442ab03609cca4ef5079e248296f015650c626899James Bottomley i->private_##attrb[count].attr.mode = perm; \ 159542ab03609cca4ef5079e248296f015650c626899James Bottomley i->attrb[count] = &i->private_##attrb[count]; \ 159642ab03609cca4ef5079e248296f015650c626899James Bottomley if (test) \ 159742ab03609cca4ef5079e248296f015650c626899James Bottomley count++ 159842ab03609cca4ef5079e248296f015650c626899James Bottomley 1599d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley#define SETUP_TEMPLATE_RW(attrb, field, perm, test, ro_test, ro_perm) \ 1600ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_##attrb[count] = dev_attr_##field; \ 1601d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley i->private_##attrb[count].attr.mode = perm; \ 1602d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley if (ro_test) { \ 1603d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley i->private_##attrb[count].attr.mode = ro_perm; \ 1604d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley i->private_##attrb[count].store = NULL; \ 1605d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley } \ 1606d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley i->attrb[count] = &i->private_##attrb[count]; \ 1607d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley if (test) \ 1608d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley count++ 160942ab03609cca4ef5079e248296f015650c626899James Bottomley 161042ab03609cca4ef5079e248296f015650c626899James Bottomley#define SETUP_RPORT_ATTRIBUTE(field) \ 161142ab03609cca4ef5079e248296f015650c626899James Bottomley SETUP_TEMPLATE(rphy_attrs, field, S_IRUGO, 1) 1612c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1613dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0James Bottomley#define SETUP_OPTIONAL_RPORT_ATTRIBUTE(field, func) \ 161442ab03609cca4ef5079e248296f015650c626899James Bottomley SETUP_TEMPLATE(rphy_attrs, field, S_IRUGO, i->f->func) 1615dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0James Bottomley 161665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley#define SETUP_PHY_ATTRIBUTE(field) \ 161742ab03609cca4ef5079e248296f015650c626899James Bottomley SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, 1) 1618c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1619d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley#define SETUP_PHY_ATTRIBUTE_RW(field) \ 1620d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley SETUP_TEMPLATE_RW(phy_attrs, field, S_IRUGO | S_IWUSR, 1, \ 1621d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley !i->f->set_phy_speed, S_IRUGO) 1622d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley 1623acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong#define SETUP_OPTIONAL_PHY_ATTRIBUTE_RW(field, func) \ 1624acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong SETUP_TEMPLATE_RW(phy_attrs, field, S_IRUGO | S_IWUSR, 1, \ 1625acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong !i->f->func, S_IRUGO) 1626acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong 162765c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley#define SETUP_PORT_ATTRIBUTE(field) \ 162865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_TEMPLATE(port_attrs, field, S_IRUGO, 1) 162965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 163065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley#define SETUP_OPTIONAL_PHY_ATTRIBUTE(field, func) \ 163142ab03609cca4ef5079e248296f015650c626899James Bottomley SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, i->f->func) 1632dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0James Bottomley 163365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley#define SETUP_PHY_ATTRIBUTE_WRONLY(field) \ 1634fe3b5bfe73ace420709f0cfb198b0ffc704bd38bDarrick J. Wong SETUP_TEMPLATE(phy_attrs, field, S_IWUSR, 1) 163507ba3a954714da10cbd3f6249d93ac2c1df72c4fChristoph Hellwig 163665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley#define SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(field, func) \ 1637fe3b5bfe73ace420709f0cfb198b0ffc704bd38bDarrick J. Wong SETUP_TEMPLATE(phy_attrs, field, S_IWUSR, i->f->func) 1638dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0James Bottomley 163942ab03609cca4ef5079e248296f015650c626899James Bottomley#define SETUP_END_DEV_ATTRIBUTE(field) \ 164042ab03609cca4ef5079e248296f015650c626899James Bottomley SETUP_TEMPLATE(end_dev_attrs, field, S_IRUGO, 1) 1641c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 164279cb1819e231f811211133a09a5382cb89d7ec67James Bottomley#define SETUP_EXPANDER_ATTRIBUTE(field) \ 164379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley SETUP_TEMPLATE(expander_attrs, expander_##field, S_IRUGO, 1) 164479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 1645c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 1646eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_attach_transport - instantiate SAS transport template 1647c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * @ft: SAS transport class function template 1648c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 1649c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstruct scsi_transport_template * 1650c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigsas_attach_transport(struct sas_function_template *ft) 1651c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 1652c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_internal *i; 1653c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig int count; 1654c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 165524669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen i = kzalloc(sizeof(struct sas_internal), GFP_KERNEL); 1656c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (!i) 1657c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return NULL; 1658c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1659e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig i->t.user_scan = sas_user_scan; 1660c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1661c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->t.host_attrs.ac.attrs = &i->host_attrs[0]; 1662c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->t.host_attrs.ac.class = &sas_host_class.class; 1663c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->t.host_attrs.ac.match = sas_host_match; 1664c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_container_register(&i->t.host_attrs); 1665c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->t.host_size = sizeof(struct sas_host_attrs); 1666c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1667c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->phy_attr_cont.ac.class = &sas_phy_class.class; 1668c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->phy_attr_cont.ac.attrs = &i->phy_attrs[0]; 1669c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->phy_attr_cont.ac.match = sas_phy_match; 1670c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_container_register(&i->phy_attr_cont); 1671c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 167265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley i->port_attr_cont.ac.class = &sas_port_class.class; 167365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley i->port_attr_cont.ac.attrs = &i->port_attrs[0]; 167465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley i->port_attr_cont.ac.match = sas_port_match; 167565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley transport_container_register(&i->port_attr_cont); 167665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 1677c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->rphy_attr_cont.ac.class = &sas_rphy_class.class; 1678c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->rphy_attr_cont.ac.attrs = &i->rphy_attrs[0]; 1679c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->rphy_attr_cont.ac.match = sas_rphy_match; 1680c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_container_register(&i->rphy_attr_cont); 1681c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 168242ab03609cca4ef5079e248296f015650c626899James Bottomley i->end_dev_attr_cont.ac.class = &sas_end_dev_class.class; 168342ab03609cca4ef5079e248296f015650c626899James Bottomley i->end_dev_attr_cont.ac.attrs = &i->end_dev_attrs[0]; 168442ab03609cca4ef5079e248296f015650c626899James Bottomley i->end_dev_attr_cont.ac.match = sas_end_dev_match; 168542ab03609cca4ef5079e248296f015650c626899James Bottomley transport_container_register(&i->end_dev_attr_cont); 168642ab03609cca4ef5079e248296f015650c626899James Bottomley 168779cb1819e231f811211133a09a5382cb89d7ec67James Bottomley i->expander_attr_cont.ac.class = &sas_expander_class.class; 168879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley i->expander_attr_cont.ac.attrs = &i->expander_attrs[0]; 168979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley i->expander_attr_cont.ac.match = sas_expander_match; 169079cb1819e231f811211133a09a5382cb89d7ec67James Bottomley transport_container_register(&i->expander_attr_cont); 169179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 1692c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->f = ft; 1693c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1694c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig count = 0; 169565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PORT_ATTRIBUTE(num_phys); 1696c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->host_attrs[count] = NULL; 1697c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1698c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig count = 0; 169965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(initiator_port_protocols); 170065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(target_port_protocols); 170165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(device_type); 170265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(sas_address); 170365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(phy_identifier); 170465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley //SETUP_PHY_ATTRIBUTE(port_identifier); 170565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(negotiated_linkrate); 170665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(minimum_linkrate_hw); 1707d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley SETUP_PHY_ATTRIBUTE_RW(minimum_linkrate); 170865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(maximum_linkrate_hw); 1709d24e1eeb3a16e4944288c2f3bf082e1513f4b425James Bottomley SETUP_PHY_ATTRIBUTE_RW(maximum_linkrate); 171065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 171165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(invalid_dword_count); 171265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(running_disparity_error_count); 171365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(loss_of_dword_sync_count); 171465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PHY_ATTRIBUTE(phy_reset_problem_count); 171565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(link_reset, phy_reset); 171665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(hard_reset, phy_reset); 1717acbf167d4ad8c27f9743a4b539d51ae9535bf21cDarrick J. Wong SETUP_OPTIONAL_PHY_ATTRIBUTE_RW(enable, phy_enable); 1718c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->phy_attrs[count] = NULL; 1719c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1720c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig count = 0; 172165c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley SETUP_PORT_ATTRIBUTE(num_phys); 172265c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley i->port_attrs[count] = NULL; 172365c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley 172465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley count = 0; 1725c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig SETUP_RPORT_ATTRIBUTE(rphy_initiator_port_protocols); 1726c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig SETUP_RPORT_ATTRIBUTE(rphy_target_port_protocols); 1727c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig SETUP_RPORT_ATTRIBUTE(rphy_device_type); 1728c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig SETUP_RPORT_ATTRIBUTE(rphy_sas_address); 1729c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig SETUP_RPORT_ATTRIBUTE(rphy_phy_identifier); 1730dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0James Bottomley SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_enclosure_identifier, 1731dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0James Bottomley get_enclosure_identifier); 1732dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0James Bottomley SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_bay_identifier, 1733dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0James Bottomley get_bay_identifier); 1734c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig i->rphy_attrs[count] = NULL; 1735c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 173642ab03609cca4ef5079e248296f015650c626899James Bottomley count = 0; 173742ab03609cca4ef5079e248296f015650c626899James Bottomley SETUP_END_DEV_ATTRIBUTE(end_dev_ready_led_meaning); 173842ab03609cca4ef5079e248296f015650c626899James Bottomley SETUP_END_DEV_ATTRIBUTE(end_dev_I_T_nexus_loss_timeout); 173942ab03609cca4ef5079e248296f015650c626899James Bottomley SETUP_END_DEV_ATTRIBUTE(end_dev_initiator_response_timeout); 174042ab03609cca4ef5079e248296f015650c626899James Bottomley i->end_dev_attrs[count] = NULL; 174142ab03609cca4ef5079e248296f015650c626899James Bottomley 174279cb1819e231f811211133a09a5382cb89d7ec67James Bottomley count = 0; 174379cb1819e231f811211133a09a5382cb89d7ec67James Bottomley SETUP_EXPANDER_ATTRIBUTE(vendor_id); 174479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley SETUP_EXPANDER_ATTRIBUTE(product_id); 174579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley SETUP_EXPANDER_ATTRIBUTE(product_rev); 174679cb1819e231f811211133a09a5382cb89d7ec67James Bottomley SETUP_EXPANDER_ATTRIBUTE(component_vendor_id); 174779cb1819e231f811211133a09a5382cb89d7ec67James Bottomley SETUP_EXPANDER_ATTRIBUTE(component_id); 174879cb1819e231f811211133a09a5382cb89d7ec67James Bottomley SETUP_EXPANDER_ATTRIBUTE(component_revision_id); 174979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley SETUP_EXPANDER_ATTRIBUTE(level); 175079cb1819e231f811211133a09a5382cb89d7ec67James Bottomley i->expander_attrs[count] = NULL; 175179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley 1752c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return &i->t; 1753c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1754c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(sas_attach_transport); 1755c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1756c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig/** 1757eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * sas_release_transport - release SAS transport template instance 1758c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig * @t: transport template instance 1759c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig */ 1760c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigvoid sas_release_transport(struct scsi_transport_template *t) 1761c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 1762c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig struct sas_internal *i = to_sas_internal(t); 1763c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1764c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_container_unregister(&i->t.host_attrs); 1765c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_container_unregister(&i->phy_attr_cont); 176665c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley transport_container_unregister(&i->port_attr_cont); 1767c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_container_unregister(&i->rphy_attr_cont); 1768db82f8410ed7546792358964aa5f8dafff1c70a2James Bottomley transport_container_unregister(&i->end_dev_attr_cont); 176979cb1819e231f811211133a09a5382cb89d7ec67James Bottomley transport_container_unregister(&i->expander_attr_cont); 1770c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1771c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig kfree(i); 1772c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1773c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigEXPORT_SYMBOL(sas_release_transport); 1774c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1775c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic __init int sas_transport_init(void) 1776c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 1777c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig int error; 1778c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1779c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig error = transport_class_register(&sas_host_class); 1780c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (error) 1781c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig goto out; 1782c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig error = transport_class_register(&sas_phy_class); 1783c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (error) 1784c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig goto out_unregister_transport; 178565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley error = transport_class_register(&sas_port_class); 1786c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig if (error) 1787c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig goto out_unregister_phy; 178865c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley error = transport_class_register(&sas_rphy_class); 178965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley if (error) 179065c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley goto out_unregister_port; 179142ab03609cca4ef5079e248296f015650c626899James Bottomley error = transport_class_register(&sas_end_dev_class); 179242ab03609cca4ef5079e248296f015650c626899James Bottomley if (error) 179342ab03609cca4ef5079e248296f015650c626899James Bottomley goto out_unregister_rphy; 179479cb1819e231f811211133a09a5382cb89d7ec67James Bottomley error = transport_class_register(&sas_expander_class); 179579cb1819e231f811211133a09a5382cb89d7ec67James Bottomley if (error) 179679cb1819e231f811211133a09a5382cb89d7ec67James Bottomley goto out_unregister_end_dev; 1797c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1798c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return 0; 1799c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 180079cb1819e231f811211133a09a5382cb89d7ec67James Bottomley out_unregister_end_dev: 180179cb1819e231f811211133a09a5382cb89d7ec67James Bottomley transport_class_unregister(&sas_end_dev_class); 180242ab03609cca4ef5079e248296f015650c626899James Bottomley out_unregister_rphy: 180342ab03609cca4ef5079e248296f015650c626899James Bottomley transport_class_unregister(&sas_rphy_class); 180465c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley out_unregister_port: 180565c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley transport_class_unregister(&sas_port_class); 1806c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig out_unregister_phy: 1807c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_class_unregister(&sas_phy_class); 1808c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig out_unregister_transport: 1809c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_class_unregister(&sas_host_class); 1810c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig out: 1811c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig return error; 1812c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1813c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1814c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1815c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigstatic void __exit sas_transport_exit(void) 1816c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig{ 1817c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_class_unregister(&sas_host_class); 1818c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_class_unregister(&sas_phy_class); 181965c92b09acf0218b64f1c7ba4fdabeb8b732c876James Bottomley transport_class_unregister(&sas_port_class); 1820c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig transport_class_unregister(&sas_rphy_class); 182142ab03609cca4ef5079e248296f015650c626899James Bottomley transport_class_unregister(&sas_end_dev_class); 182279cb1819e231f811211133a09a5382cb89d7ec67James Bottomley transport_class_unregister(&sas_expander_class); 1823c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig} 1824c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1825c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigMODULE_AUTHOR("Christoph Hellwig"); 182686b9c4c16a1589d05959af2d96d52a4352c6306eAlexis BruemmerMODULE_DESCRIPTION("SAS Transport Attributes"); 1827c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph HellwigMODULE_LICENSE("GPL"); 1828c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwig 1829c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigmodule_init(sas_transport_init); 1830c7ebbbce366c02e5657ac6b6059933fe0353b175Christoph Hellwigmodule_exit(sas_transport_exit); 1831