diff options
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/fc/fc_fc2.h | 2 | ||||
| -rw-r--r-- | include/scsi/iscsi_if.h | 247 | ||||
| -rw-r--r-- | include/scsi/libfc.h | 9 | ||||
| -rw-r--r-- | include/scsi/libfcoe.h | 7 | ||||
| -rw-r--r-- | include/scsi/libiscsi.h | 22 | ||||
| -rw-r--r-- | include/scsi/libiscsi_tcp.h | 2 | ||||
| -rw-r--r-- | include/scsi/libsas.h | 1 | ||||
| -rw-r--r-- | include/scsi/osd_ore.h | 1 | ||||
| -rw-r--r-- | include/scsi/osd_protocol.h | 10 | ||||
| -rw-r--r-- | include/scsi/scsi.h | 1 | ||||
| -rw-r--r-- | include/scsi/scsi_cmnd.h | 33 | ||||
| -rw-r--r-- | include/scsi/scsi_device.h | 27 | ||||
| -rw-r--r-- | include/scsi/scsi_driver.h | 11 | ||||
| -rw-r--r-- | include/scsi/scsi_host.h | 28 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_fc.h | 1 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_iscsi.h | 6 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_srp.h | 106 |
17 files changed, 463 insertions, 51 deletions
diff --git a/include/scsi/fc/fc_fc2.h b/include/scsi/fc/fc_fc2.h index f87777d0d5b..0b267143130 100644 --- a/include/scsi/fc/fc_fc2.h +++ b/include/scsi/fc/fc_fc2.h @@ -104,7 +104,7 @@ struct fc_esb { * esb_e_stat - flags from FC-FS-2 T11/1619-D Rev 0.90. */ #define ESB_ST_RESP (1 << 31) /* responder to exchange */ -#define ESB_ST_SEQ_INIT (1 << 30) /* port holds sequence initiaive */ +#define ESB_ST_SEQ_INIT (1 << 30) /* port holds sequence initiative */ #define ESB_ST_COMPLETE (1 << 29) /* exchange is complete */ #define ESB_ST_ABNORMAL (1 << 28) /* abnormal ending condition */ #define ESB_ST_REC_QUAL (1 << 26) /* recovery qualifier active */ diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index 13d81c5c4eb..fd0421c6d40 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -69,6 +69,8 @@ enum iscsi_uevent_e { ISCSI_UEVENT_LOGIN_FLASHNODE = UEVENT_BASE + 28, ISCSI_UEVENT_LOGOUT_FLASHNODE = UEVENT_BASE + 29, ISCSI_UEVENT_LOGOUT_FLASHNODE_SID = UEVENT_BASE + 30, + ISCSI_UEVENT_SET_CHAP = UEVENT_BASE + 31, + ISCSI_UEVENT_GET_HOST_STATS = UEVENT_BASE + 32, /* up events */ ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1, @@ -241,6 +243,9 @@ struct iscsi_uevent { uint32_t host_no; uint32_t sid; } logout_flashnode_sid; + struct msg_get_host_stats { + uint32_t host_no; + } get_host_stats; } u; union { /* messages k -> u */ @@ -309,8 +314,17 @@ enum iscsi_param_type { ISCSI_HOST_PARAM, /* iscsi_host_param */ ISCSI_NET_PARAM, /* iscsi_net_param */ ISCSI_FLASHNODE_PARAM, /* iscsi_flashnode_param */ + ISCSI_CHAP_PARAM, /* iscsi_chap_param */ + ISCSI_IFACE_PARAM, /* iscsi_iface_param */ }; +/* structure for minimalist usecase */ +struct iscsi_param_info { + uint32_t len; /* Actual length of the param value */ + uint16_t param; /* iscsi param */ + uint8_t value[0]; /* length sized value follows */ +} __packed; + struct iscsi_iface_param_info { uint32_t iface_num; /* iface number, 0 - n */ uint32_t len; /* Actual length of the param */ @@ -374,28 +388,106 @@ struct iscsi_path { #define ISCSI_VLAN_DISABLE 0x01 #define ISCSI_VLAN_ENABLE 0x02 +/* iscsi generic enable/disabled setting for various features */ +#define ISCSI_NET_PARAM_DISABLE 0x01 +#define ISCSI_NET_PARAM_ENABLE 0x02 + /* iSCSI network params */ enum iscsi_net_param { ISCSI_NET_PARAM_IPV4_ADDR = 1, - ISCSI_NET_PARAM_IPV4_SUBNET = 2, - ISCSI_NET_PARAM_IPV4_GW = 3, - ISCSI_NET_PARAM_IPV4_BOOTPROTO = 4, - ISCSI_NET_PARAM_MAC = 5, - ISCSI_NET_PARAM_IPV6_LINKLOCAL = 6, - ISCSI_NET_PARAM_IPV6_ADDR = 7, - ISCSI_NET_PARAM_IPV6_ROUTER = 8, - ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG = 9, - ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG = 10, - ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG = 11, - ISCSI_NET_PARAM_IFACE_ENABLE = 12, - ISCSI_NET_PARAM_VLAN_ID = 13, - ISCSI_NET_PARAM_VLAN_PRIORITY = 14, - ISCSI_NET_PARAM_VLAN_ENABLED = 15, - ISCSI_NET_PARAM_VLAN_TAG = 16, - ISCSI_NET_PARAM_IFACE_TYPE = 17, - ISCSI_NET_PARAM_IFACE_NAME = 18, - ISCSI_NET_PARAM_MTU = 19, - ISCSI_NET_PARAM_PORT = 20, + ISCSI_NET_PARAM_IPV4_SUBNET, + ISCSI_NET_PARAM_IPV4_GW, + ISCSI_NET_PARAM_IPV4_BOOTPROTO, + ISCSI_NET_PARAM_MAC, + ISCSI_NET_PARAM_IPV6_LINKLOCAL, + ISCSI_NET_PARAM_IPV6_ADDR, + ISCSI_NET_PARAM_IPV6_ROUTER, + ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG, + ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG, + ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG, + ISCSI_NET_PARAM_IFACE_ENABLE, + ISCSI_NET_PARAM_VLAN_ID, + ISCSI_NET_PARAM_VLAN_PRIORITY, + ISCSI_NET_PARAM_VLAN_ENABLED, + ISCSI_NET_PARAM_VLAN_TAG, + ISCSI_NET_PARAM_IFACE_TYPE, + ISCSI_NET_PARAM_IFACE_NAME, + ISCSI_NET_PARAM_MTU, + ISCSI_NET_PARAM_PORT, + ISCSI_NET_PARAM_IPADDR_STATE, + ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE, + ISCSI_NET_PARAM_IPV6_ROUTER_STATE, + ISCSI_NET_PARAM_DELAYED_ACK_EN, + ISCSI_NET_PARAM_TCP_NAGLE_DISABLE, + ISCSI_NET_PARAM_TCP_WSF_DISABLE, + ISCSI_NET_PARAM_TCP_WSF, + ISCSI_NET_PARAM_TCP_TIMER_SCALE, + ISCSI_NET_PARAM_TCP_TIMESTAMP_EN, + ISCSI_NET_PARAM_CACHE_ID, + ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN, + ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN, + ISCSI_NET_PARAM_IPV4_TOS_EN, + ISCSI_NET_PARAM_IPV4_TOS, + ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN, + ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN, + ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID, + ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN, + ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN, + ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID, + ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN, + ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE, + ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN, + ISCSI_NET_PARAM_IPV4_TTL, + ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN, + ISCSI_NET_PARAM_IPV6_MLD_EN, + ISCSI_NET_PARAM_IPV6_FLOW_LABEL, + ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS, + ISCSI_NET_PARAM_IPV6_HOP_LIMIT, + ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO, + ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME, + ISCSI_NET_PARAM_IPV6_ND_STALE_TMO, + ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT, + ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU, + ISCSI_NET_PARAM_REDIRECT_EN, +}; + +enum iscsi_ipaddress_state { + ISCSI_IPDDRESS_STATE_UNCONFIGURED, + ISCSI_IPDDRESS_STATE_ACQUIRING, + ISCSI_IPDDRESS_STATE_TENTATIVE, + ISCSI_IPDDRESS_STATE_VALID, + ISCSI_IPDDRESS_STATE_DISABLING, + ISCSI_IPDDRESS_STATE_INVALID, + ISCSI_IPDDRESS_STATE_DEPRECATED, +}; + +enum iscsi_router_state { + ISCSI_ROUTER_STATE_UNKNOWN, + ISCSI_ROUTER_STATE_ADVERTISED, + ISCSI_ROUTER_STATE_MANUAL, + ISCSI_ROUTER_STATE_STALE, +}; + +/* iSCSI specific settings params for iface */ +enum iscsi_iface_param { + ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO, + ISCSI_IFACE_PARAM_HDRDGST_EN, + ISCSI_IFACE_PARAM_DATADGST_EN, + ISCSI_IFACE_PARAM_IMM_DATA_EN, + ISCSI_IFACE_PARAM_INITIAL_R2T_EN, + ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN, + ISCSI_IFACE_PARAM_PDU_INORDER_EN, + ISCSI_IFACE_PARAM_ERL, + ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH, + ISCSI_IFACE_PARAM_FIRST_BURST, + ISCSI_IFACE_PARAM_MAX_R2T, + ISCSI_IFACE_PARAM_MAX_BURST, + ISCSI_IFACE_PARAM_CHAP_AUTH_EN, + ISCSI_IFACE_PARAM_BIDI_CHAP_EN, + ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL, + ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN, + ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN, + ISCSI_IFACE_PARAM_INITIATOR_NAME, }; enum iscsi_conn_state { @@ -526,6 +618,7 @@ enum iscsi_param { ISCSI_PARAM_DISCOVERY_PARENT_IDX, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, + ISCSI_PARAM_LOCAL_IPADDR, /* must always be last */ ISCSI_PARAM_MAX, }; @@ -739,6 +832,14 @@ enum chap_type_e { CHAP_TYPE_IN, }; +enum iscsi_chap_param { + ISCSI_CHAP_PARAM_INDEX, + ISCSI_CHAP_PARAM_CHAP_TYPE, + ISCSI_CHAP_PARAM_USERNAME, + ISCSI_CHAP_PARAM_PASSWORD, + ISCSI_CHAP_PARAM_PASSWORD_LEN +}; + #define ISCSI_CHAP_AUTH_NAME_MAX_LEN 256 #define ISCSI_CHAP_AUTH_SECRET_MAX_LEN 256 struct iscsi_chap_rec { @@ -749,4 +850,112 @@ struct iscsi_chap_rec { uint8_t password_length; }; +#define ISCSI_HOST_STATS_CUSTOM_MAX 32 +#define ISCSI_HOST_STATS_CUSTOM_DESC_MAX 64 +struct iscsi_host_stats_custom { + char desc[ISCSI_HOST_STATS_CUSTOM_DESC_MAX]; + uint64_t value; +}; + +/* struct iscsi_offload_host_stats: Host statistics, + * Include statistics for MAC, IP, TCP & iSCSI. + */ +struct iscsi_offload_host_stats { + /* MAC */ + uint64_t mactx_frames; + uint64_t mactx_bytes; + uint64_t mactx_multicast_frames; + uint64_t mactx_broadcast_frames; + uint64_t mactx_pause_frames; + uint64_t mactx_control_frames; + uint64_t mactx_deferral; + uint64_t mactx_excess_deferral; + uint64_t mactx_late_collision; + uint64_t mactx_abort; + uint64_t mactx_single_collision; + uint64_t mactx_multiple_collision; + uint64_t mactx_collision; + uint64_t mactx_frames_dropped; + uint64_t mactx_jumbo_frames; + uint64_t macrx_frames; + uint64_t macrx_bytes; + uint64_t macrx_unknown_control_frames; + uint64_t macrx_pause_frames; + uint64_t macrx_control_frames; + uint64_t macrx_dribble; + uint64_t macrx_frame_length_error; + uint64_t macrx_jabber; + uint64_t macrx_carrier_sense_error; + uint64_t macrx_frame_discarded; + uint64_t macrx_frames_dropped; + uint64_t mac_crc_error; + uint64_t mac_encoding_error; + uint64_t macrx_length_error_large; + uint64_t macrx_length_error_small; + uint64_t macrx_multicast_frames; + uint64_t macrx_broadcast_frames; + /* IP */ + uint64_t iptx_packets; + uint64_t iptx_bytes; + uint64_t iptx_fragments; + uint64_t iprx_packets; + uint64_t iprx_bytes; + uint64_t iprx_fragments; + uint64_t ip_datagram_reassembly; + uint64_t ip_invalid_address_error; + uint64_t ip_error_packets; + uint64_t ip_fragrx_overlap; + uint64_t ip_fragrx_outoforder; + uint64_t ip_datagram_reassembly_timeout; + uint64_t ipv6tx_packets; + uint64_t ipv6tx_bytes; + uint64_t ipv6tx_fragments; + uint64_t ipv6rx_packets; + uint64_t ipv6rx_bytes; + uint64_t ipv6rx_fragments; + uint64_t ipv6_datagram_reassembly; + uint64_t ipv6_invalid_address_error; + uint64_t ipv6_error_packets; + uint64_t ipv6_fragrx_overlap; + uint64_t ipv6_fragrx_outoforder; + uint64_t ipv6_datagram_reassembly_timeout; + /* TCP */ + uint64_t tcptx_segments; + uint64_t tcptx_bytes; + uint64_t tcprx_segments; + uint64_t tcprx_byte; + uint64_t tcp_duplicate_ack_retx; + uint64_t tcp_retx_timer_expired; + uint64_t tcprx_duplicate_ack; + uint64_t tcprx_pure_ackr; + uint64_t tcptx_delayed_ack; + uint64_t tcptx_pure_ack; + uint64_t tcprx_segment_error; + uint64_t tcprx_segment_outoforder; + uint64_t tcprx_window_probe; + uint64_t tcprx_window_update; + uint64_t tcptx_window_probe_persist; + /* ECC */ + uint64_t ecc_error_correction; + /* iSCSI */ + uint64_t iscsi_pdu_tx; + uint64_t iscsi_data_bytes_tx; + uint64_t iscsi_pdu_rx; + uint64_t iscsi_data_bytes_rx; + uint64_t iscsi_io_completed; + uint64_t iscsi_unexpected_io_rx; + uint64_t iscsi_format_error; + uint64_t iscsi_hdr_digest_error; + uint64_t iscsi_data_digest_error; + uint64_t iscsi_sequence_error; + /* + * iSCSI Custom Host Statistics support, i.e. Transport could + * extend existing host statistics with its own specific statistics + * up to ISCSI_HOST_STATS_CUSTOM_MAX + */ + uint32_t custom_length; + struct iscsi_host_stats_custom custom[0] + __aligned(sizeof(uint64_t)); +}; + #endif diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index e1379b4e8fa..52beadf9a29 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -410,6 +410,12 @@ struct fc_seq { * @fh_type: The frame type * @class: The class of service * @seq: The sequence in use on this exchange + * @resp_active: Number of tasks that are concurrently executing @resp(). + * @resp_task: If @resp_active > 0, either the task executing @resp(), the + * task that has been interrupted to execute the soft-IRQ + * executing @resp() or NULL if more than one task is executing + * @resp concurrently. + * @resp_wq: Waitqueue for the tasks waiting on @resp_active. * @resp: Callback for responses on this exchange * @destructor: Called when destroying the exchange * @arg: Passed as a void pointer to the resp() callback @@ -441,6 +447,9 @@ struct fc_exch { u32 r_a_tov; u32 f_ctl; struct fc_seq seq; + int resp_active; + struct task_struct *resp_task; + wait_queue_head_t resp_wq; void (*resp)(struct fc_seq *, struct fc_frame *, void *); void *arg; void (*destructor)(struct fc_seq *, void *); diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h index 4427393115e..de7e3ee60f0 100644 --- a/include/scsi/libfcoe.h +++ b/include/scsi/libfcoe.h @@ -90,6 +90,7 @@ enum fip_state { * @lp: &fc_lport: libfc local port. * @sel_fcf: currently selected FCF, or NULL. * @fcfs: list of discovered FCFs. + * @cdev: (Optional) pointer to sysfs fcoe_ctlr_device. * @fcf_count: number of discovered FCF entries. * @sol_time: time when a multicast solicitation was last sent. * @sel_time: time after which to select an FCF. @@ -127,6 +128,7 @@ struct fcoe_ctlr { struct fc_lport *lp; struct fcoe_fcf *sel_fcf; struct list_head fcfs; + struct fcoe_ctlr_device *cdev; u16 fcf_count; unsigned long sol_time; unsigned long sel_time; @@ -168,8 +170,11 @@ static inline void *fcoe_ctlr_priv(const struct fcoe_ctlr *ctlr) return (void *)(ctlr + 1); } +/* + * This assumes that the fcoe_ctlr (x) is allocated with the fcoe_ctlr_device. + */ #define fcoe_ctlr_to_ctlr_dev(x) \ - (struct fcoe_ctlr_device *)(((struct fcoe_ctlr_device *)(x)) - 1) + (x)->cdev /** * struct fcoe_fcf - Fibre-Channel Forwarder diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 6ac9e17acdc..728c9ad9feb 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -133,6 +133,10 @@ struct iscsi_task { unsigned long last_xfer; unsigned long last_timeout; bool have_checked_conn; + + /* T10 protection information */ + bool protected; + /* state set/tested under session->lock */ int state; atomic_t refcount; @@ -231,6 +235,7 @@ struct iscsi_conn { uint8_t ipv6_traffic_class; uint8_t ipv6_flow_label; uint8_t is_fw_assigned_ipv6; + char *local_ipaddr; /* MIB-statistics */ uint64_t txdata_octets; @@ -326,12 +331,19 @@ struct iscsi_session { struct iscsi_transport *tt; struct Scsi_Host *host; struct iscsi_conn *leadconn; /* leading connection */ - spinlock_t lock; /* protects session state, * - * sequence numbers, * + /* Between the forward and the backward locks exists a strict locking + * hierarchy. The mutual exclusion zone protected by the forward lock + * can enclose the mutual exclusion zone protected by the backward lock + * but not vice versa. + */ + spinlock_t frwd_lock; /* protects session state, * + * cmdsn, queued_cmdsn * * session resources: * - * - cmdpool, * - * - mgmtpool, * - * - r2tpool */ + * - cmdpool kfifo_out , * + * - mgmtpool, */ + spinlock_t back_lock; /* protects cmdsn_exp * + * cmdsn_max, * + * cmdpool kfifo_in */ int state; /* session state */ int age; /* counts session re-opens */ diff --git a/include/scsi/libiscsi_tcp.h b/include/scsi/libiscsi_tcp.h index 215469a9b80..2a7aa75dd00 100644 --- a/include/scsi/libiscsi_tcp.h +++ b/include/scsi/libiscsi_tcp.h @@ -83,6 +83,8 @@ struct iscsi_tcp_task { struct iscsi_pool r2tpool; struct kfifo r2tqueue; void *dd_data; + spinlock_t pool2queue; + spinlock_t queue2pool; }; enum { diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index f843dd8722a..ef7872c20da 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -172,7 +172,6 @@ struct sata_device { enum ata_command_set command_set; struct smp_resp rps_resp; /* report_phy_sata_resp */ u8 port_no; /* port number, if this is a PM (Port) */ - int pm_result; struct ata_port *ap; struct ata_host ata_host; diff --git a/include/scsi/osd_ore.h b/include/scsi/osd_ore.h index a5f9b960dfc..6ca3265a4dc 100644 --- a/include/scsi/osd_ore.h +++ b/include/scsi/osd_ore.h @@ -102,6 +102,7 @@ struct ore_striping_info { unsigned unit_off; unsigned cur_pg; unsigned cur_comp; + unsigned maxdevUnits; }; struct ore_io_state; diff --git a/include/scsi/osd_protocol.h b/include/scsi/osd_protocol.h index 25ac6283b9c..a2594afe05c 100644 --- a/include/scsi/osd_protocol.h +++ b/include/scsi/osd_protocol.h @@ -263,16 +263,16 @@ static inline struct osd_cdb_head *osd_cdb_head(struct osd_cdb *ocdb) * Ex name = FORMAT_OSD we have OSD_ACT_FORMAT_OSD && OSDv1_ACT_FORMAT_OSD */ #define OSD_ACT___(Name, Num) \ - OSD_ACT_##Name = __constant_cpu_to_be16(0x8880 + Num), \ - OSDv1_ACT_##Name = __constant_cpu_to_be16(0x8800 + Num), + OSD_ACT_##Name = cpu_to_be16(0x8880 + Num), \ + OSDv1_ACT_##Name = cpu_to_be16(0x8800 + Num), /* V2 only actions */ #define OSD_ACT_V2(Name, Num) \ - OSD_ACT_##Name = __constant_cpu_to_be16(0x8880 + Num), + OSD_ACT_##Name = cpu_to_be16(0x8880 + Num), #define OSD_ACT_V1_V2(Name, Num1, Num2) \ - OSD_ACT_##Name = __constant_cpu_to_be16(Num2), \ - OSDv1_ACT_##Name = __constant_cpu_to_be16(Num1), + OSD_ACT_##Name = cpu_to_be16(Num2), \ + OSDv1_ACT_##Name = cpu_to_be16(Num1), enum osd_service_actions { OSD_ACT_V2(OBJECT_STRUCTURE_CHECK, 0x00) diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 66d42edfb3f..0a4edfe8af5 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -155,6 +155,7 @@ enum scsi_timeouts { /* values for service action in */ #define SAI_READ_CAPACITY_16 0x10 #define SAI_GET_LBA_STATUS 0x12 +#define SAI_REPORT_REFERRALS 0x13 /* values for VARIABLE_LENGTH_CMD service action codes * see spc4r17 Section D.3.5, table D.7 and D.8 */ #define VLC_SA_RECEIVE_CREDENTIAL 0x1800 diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index de5f5d8f1f8..e0ae7109814 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -7,6 +7,7 @@ #include <linux/types.h> #include <linux/timer.h> #include <linux/scatterlist.h> +#include <scsi/scsi_device.h> struct Scsi_Host; struct scsi_device; @@ -55,6 +56,7 @@ struct scsi_cmnd { struct scsi_device *device; struct list_head list; /* scsi_cmnd participates in queue lists */ struct list_head eh_entry; /* entry for the host eh_cmd_q */ + struct delayed_work abort_work; int eh_eflags; /* Used by error handlr */ /* @@ -132,6 +134,15 @@ struct scsi_cmnd { unsigned char tag; /* SCSI-II queued command tag */ }; +/* + * Return the driver private allocation behind the command. + * Only works if cmd_size is set in the host template. + */ +static inline void *scsi_cmd_priv(struct scsi_cmnd *cmd) +{ + return cmd + 1; +} + /* make sure not to use it with REQ_TYPE_BLOCK_PC commands */ static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd) { @@ -141,8 +152,7 @@ static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd) extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t); extern struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *, gfp_t); extern void scsi_put_command(struct scsi_cmnd *); -extern void __scsi_put_command(struct Scsi_Host *, struct scsi_cmnd *, - struct device *); +extern void __scsi_put_command(struct Scsi_Host *, struct scsi_cmnd *); extern void scsi_finish_command(struct scsi_cmnd *cmd); extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count, @@ -155,9 +165,6 @@ extern void scsi_release_buffers(struct scsi_cmnd *cmd); extern int scsi_dma_map(struct scsi_cmnd *cmd); extern void scsi_dma_unmap(struct scsi_cmnd *cmd); -struct scsi_cmnd *scsi_allocate_command(gfp_t gfp_mask); -void scsi_free_command(gfp_t gfp_mask, struct scsi_cmnd *cmd); - static inline unsigned scsi_sg_count(struct scsi_cmnd *cmd) { return cmd->sdb.table.nents; @@ -309,4 +316,20 @@ static inline void set_driver_byte(struct scsi_cmnd *cmd, char status) cmd->result = (cmd->result & 0x00ffffff) | (status << 24); } +static inline unsigned scsi_transfer_length(struct scsi_cmnd *scmd) +{ + unsigned int xfer_len = scsi_out(scmd)->length; + unsigned int prot_op = scsi_get_prot_op(scmd); + unsigned int sector_size = scmd->device->sector_size; + + switch (prot_op) { + case SCSI_PROT_NORMAL: + case SCSI_PROT_WRITE_STRIP: + case SCSI_PROT_READ_INSERT: + return xfer_len; + } + + return xfer_len + (xfer_len >> ilog2(sector_size)) * 8; +} + #endif /* _SCSI_SCSI_CMND_H */ diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index d65fbec2533..27ab31017f0 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -113,6 +113,12 @@ struct scsi_device { const char * vendor; /* [back_compat] point into 'inquiry' ... */ const char * model; /* ... after scan; point to static string */ const char * rev; /* ... "nullnullnullnull" before scan */ + +#define SCSI_VPD_PG_LEN 255 + int vpd_pg83_len; + unsigned char *vpd_pg83; + int vpd_pg80_len; + unsigned char *vpd_pg80; unsigned char current_tag; /* current tag */ struct scsi_target *sdev_target; /* used only for single_lun */ @@ -167,6 +173,7 @@ struct scsi_device { unsigned is_visible:1; /* is the device visible in sysfs */ unsigned wce_default_on:1; /* Cache is ON by default */ unsigned no_dif:1; /* T10 PI (DIF) should be disabled */ + unsigned broken_fua:1; /* Don't set FUA bit */ atomic_t disk_events_disable_depth; /* disable depth for disk events */ @@ -235,12 +242,24 @@ struct scsi_dh_data { #define sdev_printk(prefix, sdev, fmt, a...) \ dev_printk(prefix, &(sdev)->sdev_gendev, fmt, ##a) +#define sdev_dbg(sdev, fmt, a...) \ + dev_dbg(&(sdev)->sdev_gendev, fmt, ##a) + #define scmd_printk(prefix, scmd, fmt, a...) \ (scmd)->request->rq_disk ? \ sdev_printk(prefix, (scmd)->device, "[%s] " fmt, \ (scmd)->request->rq_disk->disk_name, ##a) : \ sdev_printk(prefix, (scmd)->device, fmt, ##a) +#define scmd_dbg(scmd, fmt, a...) \ + do { \ + if ((scmd)->request->rq_disk) \ + sdev_dbg((scmd)->device, "[%s] " fmt, \ + (scmd)->request->rq_disk->disk_name, ##a);\ + else \ + sdev_dbg((scmd)->device, fmt, ##a); \ + } while (0) + enum scsi_target_state { STARGET_CREATED = 1, STARGET_RUNNING, @@ -257,7 +276,7 @@ struct scsi_target { struct list_head siblings; struct list_head devices; struct device dev; - unsigned int reap_ref; /* protected by the host lock */ + struct kref reap_ref; /* last put renders target invisible */ unsigned int channel; unsigned int id; /* target id ... replace * scsi_device.id eventually */ @@ -284,7 +303,6 @@ struct scsi_target { #define SCSI_DEFAULT_TARGET_BLOCKED 3 char scsi_level; - struct execute_work ew; enum scsi_target_state state; void *hostdata; /* available to low-level driver */ unsigned long starget_data[0]; /* for the transport */ @@ -309,6 +327,7 @@ extern int scsi_add_device(struct Scsi_Host *host, uint channel, extern int scsi_register_device_handler(struct scsi_device_handler *scsi_dh); extern void scsi_remove_device(struct scsi_device *); extern int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh); +void scsi_attach_vpd(struct scsi_device *sdev); extern int scsi_device_get(struct scsi_device *); extern void scsi_device_put(struct scsi_device *); @@ -405,11 +424,11 @@ extern int scsi_is_target_device(const struct device *); extern int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, unsigned char *sense, int timeout, int retries, - int flag, int *resid); + u64 flags, int *resid); extern int scsi_execute_req_flags(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, struct scsi_sense_hdr *sshdr, int timeout, - int retries, int *resid, int flags); + int retries, int *resid, u64 flags); static inline int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, struct scsi_sense_hdr *sshdr, int timeout, diff --git a/include/scsi/scsi_driver.h b/include/scsi/scsi_driver.h index d443aa06a72..36c4114ed9b 100644 --- a/include/scsi/scsi_driver.h +++ b/include/scsi/scsi_driver.h @@ -4,19 +4,19 @@ #include <linux/device.h> struct module; +struct request; struct scsi_cmnd; struct scsi_device; -struct request; -struct request_queue; - struct scsi_driver { struct module *owner; struct device_driver gendrv; void (*rescan)(struct device *); + int (*init_command)(struct scsi_cmnd *); + void (*uninit_command)(struct scsi_cmnd *); int (*done)(struct scsi_cmnd *); - int (*eh_action)(struct scsi_cmnd *, unsigned char *, int, int); + int (*eh_action)(struct scsi_cmnd *, int); }; #define to_scsi_driver(drv) \ container_of((drv), struct scsi_driver, gendrv) @@ -31,8 +31,5 @@ extern int scsi_register_interface(struct class_interface *); int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req); int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req); -int scsi_prep_state_check(struct scsi_device *sdev, struct request *req); -int scsi_prep_return(struct request_queue *q, struct request *req, int ret); -int scsi_prep_fn(struct request_queue *, struct request *); #endif /* _SCSI_SCSI_DRIVER_H */ diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 75524357221..94844fc77b9 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -15,6 +15,7 @@ struct completion; struct module; struct scsi_cmnd; struct scsi_device; +struct scsi_host_cmd_pool; struct scsi_target; struct Scsi_Host; struct scsi_host_cmd_pool; @@ -475,6 +476,14 @@ struct scsi_host_template { */ unsigned ordered_tag:1; + /* True if the controller does not support WRITE SAME */ + unsigned no_write_same:1; + + /* + * True if asynchronous aborts are not supported + */ + unsigned no_async_abort:1; + /* * Countdown for host blocking with no commands outstanding. */ @@ -516,6 +525,12 @@ struct scsi_host_template { * scsi_netlink.h */ u64 vendor_id; + + /* + * Additional per-command data allocated for the driver. + */ + unsigned int cmd_size; + struct scsi_host_cmd_pool *cmd_pool; }; /* @@ -598,9 +613,12 @@ struct Scsi_Host { unsigned int host_eh_scheduled; /* EH scheduled without command */ unsigned int host_no; /* Used for IOCTL_GET_IDLUN, /proc/scsi et al. */ - int resetting; /* if set, it means that last_reset is a valid value */ + + /* next two fields are used to bound the time spent in error handling */ + int eh_deadline; unsigned long last_reset; + /* * These three parameters can be used to allow for wide scsi, * and for host adapters that support multiple busses @@ -674,6 +692,9 @@ struct Scsi_Host { /* Don't resume host in EH */ unsigned eh_noresume:1; + /* The controller does not support WRITE SAME */ + unsigned no_write_same:1; + /* * Optional work queue to be utilized by the transport */ @@ -681,6 +702,11 @@ struct Scsi_Host { struct workqueue_struct *work_q; /* + * Task management function work queue + */ + struct workqueue_struct *tmf_work_q; + + /* * Host has rejected a command because it was busy. */ unsigned int host_blocked; diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index b797e8fad66..8c79980dc8f 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -130,6 +130,7 @@ enum fc_vport_state { #define FC_PORTSPEED_4GBIT 8 #define FC_PORTSPEED_8GBIT 0x10 #define FC_PORTSPEED_16GBIT 0x20 +#define FC_PORTSPEED_32GBIT 0x40 #define FC_PORTSPEED_NOT_NEGOTIATED (1 << 15) /* Speed not established */ /* diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index d0f1602985e..2555ee5343f 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -152,6 +152,7 @@ struct iscsi_transport { int (*get_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx, uint32_t *num_entries, char *buf); int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx); + int (*set_chap) (struct Scsi_Host *shost, void *data, int len); int (*get_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, int param, char *buf); int (*set_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, @@ -165,6 +166,8 @@ struct iscsi_transport { int (*logout_flashnode) (struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn); int (*logout_flashnode_sid) (struct iscsi_cls_session *cls_sess); + int (*get_host_stats) (struct Scsi_Host *shost, char *buf, int len); + u8 (*check_protection)(struct iscsi_task *task, sector_t *sector); }; /* @@ -477,4 +480,7 @@ iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data, extern struct device * iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess); +extern char * +iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state); +extern char *iscsi_get_router_state_name(enum iscsi_router_state router_state); #endif diff --git a/include/scsi/scsi_transport_srp.h b/include/scsi/scsi_transport_srp.h index ff0f04ac91a..cdb05dd1d44 100644 --- a/include/scsi/scsi_transport_srp.h +++ b/include/scsi/scsi_transport_srp.h @@ -13,6 +13,42 @@ struct srp_rport_identifiers { u8 roles; }; +/** + * enum srp_rport_state - SRP transport layer state + * @SRP_RPORT_RUNNING: Transport layer operational. + * @SRP_RPORT_BLOCKED: Transport layer not operational; fast I/O fail timer + * is running and I/O has been blocked. + * @SRP_RPORT_FAIL_FAST: Fast I/O fail timer has expired; fail I/O fast. + * @SRP_RPORT_LOST: Port is being removed. + */ +enum srp_rport_state { + SRP_RPORT_RUNNING, + SRP_RPORT_BLOCKED, + SRP_RPORT_FAIL_FAST, + SRP_RPORT_LOST, +}; + +/** + * struct srp_rport - SRP initiator or target port + * + * Fields that are relevant for SRP initiator and SRP target drivers: + * @dev: Device associated with this rport. + * @port_id: 16-byte port identifier. + * @roles: Role of this port - initiator or target. + * + * Fields that are only relevant for SRP initiator drivers: + * @lld_data: LLD private data. + * @mutex: Protects against concurrent rport reconnect / + * fast_io_fail / dev_loss_tmo activity. + * @state: rport state. + * @reconnect_delay: Reconnect delay in seconds. + * @failed_reconnects: Number of failed reconnect attempts. + * @reconnect_work: Work structure used for scheduling reconnect attempts. + * @fast_io_fail_tmo: Fast I/O fail timeout in seconds. + * @dev_loss_tmo: Device loss timeout in seconds. + * @fast_io_fail_work: Work structure used for scheduling fast I/O fail work. + * @dev_loss_work: Work structure used for scheduling device loss work. + */ struct srp_rport { /* for initiator and target drivers */ @@ -23,11 +59,49 @@ struct srp_rport { /* for initiator drivers */ - void *lld_data; /* LLD private data */ + void *lld_data; + + struct mutex mutex; + enum srp_rport_state state; + int reconnect_delay; + int failed_reconnects; + struct delayed_work reconnect_work; + int fast_io_fail_tmo; + int dev_loss_tmo; + struct delayed_work fast_io_fail_work; + struct delayed_work dev_loss_work; }; +/** + * struct srp_function_template + * + * Fields that are only relevant for SRP initiator drivers: + * @has_rport_state: Whether or not to create the state, fast_io_fail_tmo and + * dev_loss_tmo sysfs attribute for an rport. + * @reset_timer_if_blocked: Whether or srp_timed_out() should reset the command + * timer if the device on which it has been queued is blocked. + * @reconnect_delay: If not NULL, points to the default reconnect_delay value. + * @fast_io_fail_tmo: If not NULL, points to the default fast_io_fail_tmo value. + * @dev_loss_tmo: If not NULL, points to the default dev_loss_tmo value. + * @reconnect: Callback function for reconnecting to the target. See also + * srp_reconnect_rport(). + * @terminate_rport_io: Callback function for terminating all outstanding I/O + * requests for an rport. + * @rport_delete: Callback function that deletes an rport. + * + * Fields that are only relevant for SRP target drivers: + * @tsk_mgmt_response: Callback function for sending a task management response. + * @it_nexus_response: Callback function for processing an IT nexus response. + */ struct srp_function_template { /* for initiator drivers */ + bool has_rport_state; + bool reset_timer_if_blocked; + int *reconnect_delay; + int *fast_io_fail_tmo; + int *dev_loss_tmo; + int (*reconnect)(struct srp_rport *rport); + void (*terminate_rport_io)(struct srp_rport *rport); void (*rport_delete)(struct srp_rport *rport); /* for target drivers */ int (* tsk_mgmt_response)(struct Scsi_Host *, u64, u64, int); @@ -38,10 +112,38 @@ extern struct scsi_transport_template * srp_attach_transport(struct srp_function_template *); extern void srp_release_transport(struct scsi_transport_template *); +extern void srp_rport_get(struct srp_rport *rport); +extern void srp_rport_put(struct srp_rport *rport); extern struct srp_rport *srp_rport_add(struct Scsi_Host *, struct srp_rport_identifiers *); extern void srp_rport_del(struct srp_rport *); - +extern int srp_tmo_valid(int reconnect_delay, int fast_io_fail_tmo, + int dev_loss_tmo); +extern int srp_reconnect_rport(struct srp_rport *rport); +extern void srp_start_tl_fail_timers(struct srp_rport *rport); extern void srp_remove_host(struct Scsi_Host *); +extern void srp_stop_rport_timers(struct srp_rport *rport); + +/** + * srp_chkready() - evaluate the transport layer state before I/O + * @rport: SRP target port pointer. + * + * Returns a SCSI result code that can be returned by the LLD queuecommand() + * implementation. The role of this function is similar to that of + * fc_remote_port_chkready(). + */ +static inline int srp_chkready(struct srp_rport *rport) +{ + switch (rport->state) { + case SRP_RPORT_RUNNING: + case SRP_RPORT_BLOCKED: + default: + return 0; + case SRP_RPORT_FAIL_FAST: + return DID_TRANSPORT_FAILFAST << 16; + case SRP_RPORT_LOST: + return DID_NO_CONNECT << 16; + } +} #endif |