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-rw-r--r--include/scsi/iscsi_if.h20
-rw-r--r--include/scsi/iscsi_proto.h14
-rw-r--r--include/scsi/libiscsi.h82
-rw-r--r--include/scsi/libsas.h28
-rw-r--r--include/scsi/sas.h13
-rw-r--r--include/scsi/scsi.h20
-rw-r--r--include/scsi/scsi_cmnd.h62
-rw-r--r--include/scsi/scsi_device.h13
-rw-r--r--include/scsi/scsi_eh.h9
-rw-r--r--include/scsi/scsi_host.h17
-rw-r--r--include/scsi/scsi_transport_fc.h2
-rw-r--r--include/scsi/scsi_transport_iscsi.h10
-rw-r--r--include/scsi/scsi_transport_sas.h16
-rw-r--r--include/scsi/sd.h1
14 files changed, 210 insertions, 97 deletions
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index 50e907f42048..e19e58423166 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -49,12 +49,15 @@ enum iscsi_uevent_e {
ISCSI_UEVENT_TGT_DSCVR = UEVENT_BASE + 15,
ISCSI_UEVENT_SET_HOST_PARAM = UEVENT_BASE + 16,
+ ISCSI_UEVENT_UNBIND_SESSION = UEVENT_BASE + 17,
/* up events */
ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1,
ISCSI_KEVENT_CONN_ERROR = KEVENT_BASE + 2,
ISCSI_KEVENT_IF_ERROR = KEVENT_BASE + 3,
ISCSI_KEVENT_DESTROY_SESSION = KEVENT_BASE + 4,
+ ISCSI_KEVENT_UNBIND_SESSION = KEVENT_BASE + 5,
+ ISCSI_KEVENT_CREATE_SESSION = KEVENT_BASE + 6,
};
enum iscsi_tgt_dscvr {
@@ -156,6 +159,10 @@ struct iscsi_uevent {
uint32_t sid;
uint32_t cid;
} c_conn_ret;
+ struct msg_unbind_session {
+ uint32_t sid;
+ uint32_t host_no;
+ } unbind_session;
struct msg_recv_req {
uint32_t sid;
uint32_t cid;
@@ -236,6 +243,13 @@ enum iscsi_param {
ISCSI_PARAM_PASSWORD,
ISCSI_PARAM_PASSWORD_IN,
+ ISCSI_PARAM_FAST_ABORT,
+ ISCSI_PARAM_ABORT_TMO,
+ ISCSI_PARAM_LU_RESET_TMO,
+ ISCSI_PARAM_HOST_RESET_TMO,
+
+ ISCSI_PARAM_PING_TMO,
+ ISCSI_PARAM_RECV_TMO,
/* must always be last */
ISCSI_PARAM_MAX,
};
@@ -266,6 +280,12 @@ enum iscsi_param {
#define ISCSI_USERNAME_IN (1 << ISCSI_PARAM_USERNAME_IN)
#define ISCSI_PASSWORD (1 << ISCSI_PARAM_PASSWORD)
#define ISCSI_PASSWORD_IN (1 << ISCSI_PARAM_PASSWORD_IN)
+#define ISCSI_FAST_ABORT (1 << ISCSI_PARAM_FAST_ABORT)
+#define ISCSI_ABORT_TMO (1 << ISCSI_PARAM_ABORT_TMO)
+#define ISCSI_LU_RESET_TMO (1 << ISCSI_PARAM_LU_RESET_TMO)
+#define ISCSI_HOST_RESET_TMO (1 << ISCSI_PARAM_HOST_RESET_TMO)
+#define ISCSI_PING_TMO (1 << ISCSI_PARAM_PING_TMO)
+#define ISCSI_RECV_TMO (1 << ISCSI_PARAM_RECV_TMO)
/* iSCSI HBA params */
enum iscsi_host_param {
diff --git a/include/scsi/iscsi_proto.h b/include/scsi/iscsi_proto.h
index 8d1e4e8026fe..318a909e7ae1 100644
--- a/include/scsi/iscsi_proto.h
+++ b/include/scsi/iscsi_proto.h
@@ -21,13 +21,15 @@
#ifndef ISCSI_PROTO_H
#define ISCSI_PROTO_H
+#include <linux/types.h>
+
#define ISCSI_DRAFT20_VERSION 0x00
/* default iSCSI listen port for incoming connections */
#define ISCSI_LISTEN_PORT 3260
/* Padding word length */
-#define PAD_WORD_LEN 4
+#define ISCSI_PAD_LEN 4
/*
* useful common(control and data pathes) macro
@@ -147,6 +149,14 @@ struct iscsi_rlength_ahdr {
__be32 read_length;
};
+/* Extended CDB AHS */
+struct iscsi_ecdb_ahdr {
+ __be16 ahslength; /* CDB length - 15, including reserved byte */
+ uint8_t ahstype;
+ uint8_t reserved;
+ uint8_t ecdb[260 - 16]; /* 4-byte aligned extended CDB spillover */
+};
+
/* SCSI Response Header */
struct iscsi_cmd_rsp {
uint8_t opcode;
@@ -600,6 +610,8 @@ struct iscsi_reject {
#define ISCSI_MIN_MAX_BURST_LEN 512
#define ISCSI_MAX_MAX_BURST_LEN 16777215
+#define ISCSI_DEF_TIME2WAIT 2
+
/************************* RFC 3720 End *****************************/
#endif /* ISCSI_PROTO_H */
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index b4b31132618b..889f51fabab9 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -57,11 +57,14 @@ struct iscsi_nopin;
#define ISCSI_MAX_CMD_PER_LUN 128
/* Task Mgmt states */
-#define TMABORT_INITIAL 0x0
-#define TMABORT_SUCCESS 0x1
-#define TMABORT_FAILED 0x2
-#define TMABORT_TIMEDOUT 0x3
-#define TMABORT_NOT_FOUND 0x4
+enum {
+ TMF_INITIAL,
+ TMF_QUEUED,
+ TMF_SUCCESS,
+ TMF_FAILED,
+ TMF_TIMEDOUT,
+ TMF_NOT_FOUND,
+};
/* Connection suspend "bit" */
#define ISCSI_SUSPEND_BIT 1
@@ -74,6 +77,13 @@ struct iscsi_nopin;
#define ISCSI_ADDRESS_BUF_LEN 64
+enum {
+ /* this is the maximum possible storage for AHSs */
+ ISCSI_MAX_AHS_SIZE = sizeof(struct iscsi_ecdb_ahdr) +
+ sizeof(struct iscsi_rlength_ahdr),
+ ISCSI_DIGEST_SIZE = sizeof(__u32),
+};
+
struct iscsi_mgmt_task {
/*
* Becuae LLDs allocate their hdr differently, this is a pointer to
@@ -91,15 +101,17 @@ enum {
ISCSI_TASK_COMPLETED,
ISCSI_TASK_PENDING,
ISCSI_TASK_RUNNING,
- ISCSI_TASK_ABORTING,
};
struct iscsi_cmd_task {
/*
- * Becuae LLDs allocate their hdr differently, this is a pointer to
- * that storage. It must be setup at session creation time.
+ * Because LLDs allocate their hdr differently, this is a pointer
+ * and length to that storage. It must be setup at session
+ * creation time.
*/
struct iscsi_cmd *hdr;
+ unsigned short hdr_max;
+ unsigned short hdr_len; /* accumulated size of hdr used */
int itt; /* this ITT */
uint32_t unsol_datasn;
@@ -110,7 +122,6 @@ struct iscsi_cmd_task {
unsigned data_count; /* remaining Data-Out */
struct scsi_cmnd *sc; /* associated SCSI cmd*/
struct iscsi_conn *conn; /* used connection */
- struct iscsi_mgmt_task *mtask; /* tmf mtask in progr */
/* state set/tested under session->lock */
int state;
@@ -119,6 +130,11 @@ struct iscsi_cmd_task {
void *dd_data; /* driver/transport data */
};
+static inline void* iscsi_next_hdr(struct iscsi_cmd_task *ctask)
+{
+ return (void*)ctask->hdr + ctask->hdr_len;
+}
+
struct iscsi_conn {
struct iscsi_cls_conn *cls_conn; /* ptr to class connection */
void *dd_data; /* iscsi_transport data */
@@ -132,6 +148,12 @@ struct iscsi_conn {
* conn_stop() flag: stop to recover, stop to terminate
*/
int stop_stage;
+ struct timer_list transport_timer;
+ unsigned long last_recv;
+ unsigned long last_ping;
+ int ping_timeout;
+ int recv_timeout;
+ struct iscsi_mgmt_task *ping_mtask;
/* iSCSI connection-wide sequencing */
uint32_t exp_statsn;
@@ -152,10 +174,11 @@ struct iscsi_conn {
struct iscsi_cmd_task *ctask; /* xmit ctask in progress */
/* xmit */
- struct kfifo *mgmtqueue; /* mgmt (control) xmit queue */
+ struct list_head mgmtqueue; /* mgmt (control) xmit queue */
struct list_head mgmt_run_list; /* list of control tasks */
struct list_head xmitqueue; /* data-path cmd queue */
struct list_head run_list; /* list of cmds in progress */
+ struct list_head requeue; /* tasks needing another run */
struct work_struct xmitwork; /* per-conn. xmit workqueue */
unsigned long suspend_tx; /* suspend Tx */
unsigned long suspend_rx; /* suspend Rx */
@@ -163,8 +186,8 @@ struct iscsi_conn {
/* abort */
wait_queue_head_t ehwait; /* used in eh_abort() */
struct iscsi_tm tmhdr;
- struct timer_list tmabort_timer;
- int tmabort_state; /* see TMABORT_INITIAL, etc.*/
+ struct timer_list tmf_timer;
+ int tmf_state; /* see TMF_INITIAL, etc.*/
/* negotiated params */
unsigned max_recv_dlength; /* initiator_max_recv_dsl*/
@@ -198,7 +221,7 @@ struct iscsi_conn {
uint32_t eh_abort_cnt;
};
-struct iscsi_queue {
+struct iscsi_pool {
struct kfifo *queue; /* FIFO Queue */
void **pool; /* Pool of elements */
int max; /* Max number of elements */
@@ -221,6 +244,8 @@ struct iscsi_session {
uint32_t queued_cmdsn;
/* configuration */
+ int abort_timeout;
+ int lu_reset_timeout;
int initial_r2t_en;
unsigned max_r2t;
int imm_data_en;
@@ -231,6 +256,7 @@ struct iscsi_session {
int pdu_inorder_en;
int dataseq_inorder_en;
int erl;
+ int fast_abort;
int tpgt;
char *username;
char *username_in;
@@ -256,10 +282,10 @@ struct iscsi_session {
int cmds_max; /* size of cmds array */
struct iscsi_cmd_task **cmds; /* Original Cmds arr */
- struct iscsi_queue cmdpool; /* PDU's pool */
+ struct iscsi_pool cmdpool; /* PDU's pool */
int mgmtpool_max; /* size of mgmt array */
struct iscsi_mgmt_task **mgmt_cmds; /* Original mgmt arr */
- struct iscsi_queue mgmtpool; /* Mgmt PDU's pool */
+ struct iscsi_pool mgmtpool; /* Mgmt PDU's pool */
};
/*
@@ -268,6 +294,7 @@ struct iscsi_session {
extern int iscsi_change_queue_depth(struct scsi_device *sdev, int depth);
extern int iscsi_eh_abort(struct scsi_cmnd *sc);
extern int iscsi_eh_host_reset(struct scsi_cmnd *sc);
+extern int iscsi_eh_device_reset(struct scsi_cmnd *sc);
extern int iscsi_queuecommand(struct scsi_cmnd *sc,
void (*done)(struct scsi_cmnd *));
@@ -326,11 +353,32 @@ extern int __iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
char *, int);
extern int iscsi_verify_itt(struct iscsi_conn *, struct iscsi_hdr *,
uint32_t *);
+extern void iscsi_requeue_ctask(struct iscsi_cmd_task *ctask);
+extern void iscsi_free_mgmt_task(struct iscsi_conn *conn,
+ struct iscsi_mgmt_task *mtask);
/*
* generic helpers
*/
-extern void iscsi_pool_free(struct iscsi_queue *, void **);
-extern int iscsi_pool_init(struct iscsi_queue *, int, void ***, int);
+extern void iscsi_pool_free(struct iscsi_pool *);
+extern int iscsi_pool_init(struct iscsi_pool *, int, void ***, int);
+
+/*
+ * inline functions to deal with padding.
+ */
+static inline unsigned int
+iscsi_padded(unsigned int len)
+{
+ return (len + ISCSI_PAD_LEN - 1) & ~(ISCSI_PAD_LEN - 1);
+}
+
+static inline unsigned int
+iscsi_padding(unsigned int len)
+{
+ len &= (ISCSI_PAD_LEN - 1);
+ if (len)
+ len = ISCSI_PAD_LEN - len;
+ return len;
+}
#endif
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index a466c2cb8955..3ffd6b582a97 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -91,8 +91,6 @@ enum discover_event {
/* ---------- Expander Devices ---------- */
-#define ETASK 0xFA
-
#define to_dom_device(_obj) container_of(_obj, struct domain_device, dev_obj)
#define to_dev_attr(_attr) container_of(_attr, struct domain_dev_attribute,\
attr)
@@ -122,8 +120,8 @@ struct ex_phy {
u8 attached_sata_dev:1;
u8 attached_sata_ps:1;
- enum sas_proto attached_tproto;
- enum sas_proto attached_iproto;
+ enum sas_protocol attached_tproto;
+ enum sas_protocol attached_iproto;
u8 attached_sas_addr[SAS_ADDR_SIZE];
u8 attached_phy_id;
@@ -191,8 +189,8 @@ struct domain_device {
struct list_head dev_list_node;
- enum sas_proto iproto;
- enum sas_proto tproto;
+ enum sas_protocol iproto;
+ enum sas_protocol tproto;
struct sas_rphy *rphy;
@@ -245,8 +243,8 @@ struct asd_sas_port {
enum sas_class class;
u8 sas_addr[SAS_ADDR_SIZE];
u8 attached_sas_addr[SAS_ADDR_SIZE];
- enum sas_proto iproto;
- enum sas_proto tproto;
+ enum sas_protocol iproto;
+ enum sas_protocol tproto;
enum sas_oob_mode oob_mode;
@@ -289,8 +287,8 @@ struct asd_sas_phy {
int id; /* must be set */
enum sas_class class;
- enum sas_proto iproto;
- enum sas_proto tproto;
+ enum sas_protocol iproto;
+ enum sas_protocol tproto;
enum sas_phy_type type;
enum sas_phy_role role;
@@ -537,7 +535,7 @@ struct sas_task {
spinlock_t task_state_lock;
unsigned task_state_flags;
- enum sas_proto task_proto;
+ enum sas_protocol task_proto;
/* Used by the discovery code. */
struct timer_list timer;
@@ -563,7 +561,7 @@ struct sas_task {
struct work_struct abort_work;
};
-
+extern struct kmem_cache *sas_task_cache;
#define SAS_TASK_STATE_PENDING 1
#define SAS_TASK_STATE_DONE 2
@@ -573,7 +571,6 @@ struct sas_task {
static inline struct sas_task *sas_alloc_task(gfp_t flags)
{
- extern struct kmem_cache *sas_task_cache;
struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags);
if (task) {
@@ -590,7 +587,6 @@ static inline struct sas_task *sas_alloc_task(gfp_t flags)
static inline void sas_free_task(struct sas_task *task)
{
if (task) {
- extern struct kmem_cache *sas_task_cache;
BUG_ON(!list_empty(&task->list));
kmem_cache_free(sas_task_cache, task);
}
@@ -676,4 +672,8 @@ extern int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg);
extern int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
struct request *req);
+
+extern void sas_ssp_task_response(struct device *dev, struct sas_task *task,
+ struct ssp_response_iu *iu);
+
#endif /* _SASLIB_H_ */
diff --git a/include/scsi/sas.h b/include/scsi/sas.h
index 2f4b6afa34fc..e9fd02281381 100644
--- a/include/scsi/sas.h
+++ b/include/scsi/sas.h
@@ -102,13 +102,12 @@ enum sas_dev_type {
SATA_PM_PORT= 8,
};
-/* Partly from IDENTIFY address frame. */
-enum sas_proto {
- SATA_PROTO = 1,
- SAS_PROTO_SMP = 2, /* protocol */
- SAS_PROTO_STP = 4, /* protocol */
- SAS_PROTO_SSP = 8, /* protocol */
- SAS_PROTO_ALL = 0xE,
+enum sas_protocol {
+ SAS_PROTOCOL_SATA = 0x01,
+ SAS_PROTOCOL_SMP = 0x02,
+ SAS_PROTOCOL_STP = 0x04,
+ SAS_PROTOCOL_SSP = 0x08,
+ SAS_PROTOCOL_ALL = 0x0E,
};
/* From the spec; local phys only */
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 702fcfeb37f1..82251575a9b4 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -11,6 +11,25 @@
#include <linux/types.h>
/*
+ * The maximum number of SG segments that we will put inside a
+ * scatterlist (unless chaining is used). Should ideally fit inside a
+ * single page, to avoid a higher order allocation. We could define this
+ * to SG_MAX_SINGLE_ALLOC to pack correctly at the highest order. The
+ * minimum value is 32
+ */
+#define SCSI_MAX_SG_SEGMENTS 128
+
+/*
+ * Like SCSI_MAX_SG_SEGMENTS, but for archs that have sg chaining. This limit
+ * is totally arbitrary, a setting of 2048 will get you at least 8mb ios.
+ */
+#ifdef ARCH_HAS_SG_CHAIN
+#define SCSI_MAX_SG_CHAIN_SEGMENTS 2048
+#else
+#define SCSI_MAX_SG_CHAIN_SEGMENTS SCSI_MAX_SG_SEGMENTS
+#endif
+
+/*
* SCSI command lengths
*/
@@ -83,6 +102,7 @@ extern const unsigned char scsi_command_size[8];
#define READ_TOC 0x43
#define LOG_SELECT 0x4c
#define LOG_SENSE 0x4d
+#define XDWRITEREAD_10 0x53
#define MODE_SELECT_10 0x55
#define RESERVE_10 0x56
#define RELEASE_10 0x57
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 3f47e522a1ec..de28aab820b0 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -2,16 +2,20 @@
#define _SCSI_SCSI_CMND_H
#include <linux/dma-mapping.h>
+#include <linux/blkdev.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/timer.h>
#include <linux/scatterlist.h>
-struct request;
-struct scatterlist;
struct Scsi_Host;
struct scsi_device;
+struct scsi_data_buffer {
+ struct sg_table table;
+ unsigned length;
+ int resid;
+};
/* embedded in scsi_cmnd */
struct scsi_pointer {
@@ -62,15 +66,11 @@ struct scsi_cmnd {
/* These elements define the operation we are about to perform */
#define MAX_COMMAND_SIZE 16
unsigned char cmnd[MAX_COMMAND_SIZE];
- unsigned request_bufflen; /* Actual request size */
struct timer_list eh_timeout; /* Used to time out the command. */
- void *request_buffer; /* Actual requested buffer */
/* These elements define the operation we ultimately want to perform */
- unsigned short use_sg; /* Number of pieces of scatter-gather */
- unsigned short __use_sg;
-
+ struct scsi_data_buffer sdb;
unsigned underflow; /* Return error if less than
this amount is transferred */
@@ -80,15 +80,11 @@ struct scsi_cmnd {
reconnects. Probably == sector
size */
- int resid; /* Number of bytes requested to be
- transferred less actual number
- transferred (0 if not supported) */
-
struct request *request; /* The command we are
working on */
#define SCSI_SENSE_BUFFERSIZE 96
- unsigned char sense_buffer[SCSI_SENSE_BUFFERSIZE];
+ unsigned char *sense_buffer;
/* obtained by REQUEST SENSE when
* CHECK CONDITION is received on original
* command (auto-sense) */
@@ -128,27 +124,55 @@ extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count,
size_t *offset, size_t *len);
extern void scsi_kunmap_atomic_sg(void *virt);
-extern struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *, gfp_t);
-extern void scsi_free_sgtable(struct scsi_cmnd *);
+extern int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask);
+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);
-#define scsi_sg_count(cmd) ((cmd)->use_sg)
-#define scsi_sglist(cmd) ((struct scatterlist *)(cmd)->request_buffer)
-#define scsi_bufflen(cmd) ((cmd)->request_bufflen)
+static inline unsigned scsi_sg_count(struct scsi_cmnd *cmd)
+{
+ return cmd->sdb.table.nents;
+}
+
+static inline struct scatterlist *scsi_sglist(struct scsi_cmnd *cmd)
+{
+ return cmd->sdb.table.sgl;
+}
+
+static inline unsigned scsi_bufflen(struct scsi_cmnd *cmd)
+{
+ return cmd->sdb.length;
+}
static inline void scsi_set_resid(struct scsi_cmnd *cmd, int resid)
{
- cmd->resid = resid;
+ cmd->sdb.resid = resid;
}
static inline int scsi_get_resid(struct scsi_cmnd *cmd)
{
- return cmd->resid;
+ return cmd->sdb.resid;
}
#define scsi_for_each_sg(cmd, sg, nseg, __i) \
for_each_sg(scsi_sglist(cmd), sg, nseg, __i)
+static inline int scsi_bidi_cmnd(struct scsi_cmnd *cmd)
+{
+ return blk_bidi_rq(cmd->request) &&
+ (cmd->request->next_rq->special != NULL);
+}
+
+static inline struct scsi_data_buffer *scsi_in(struct scsi_cmnd *cmd)
+{
+ return scsi_bidi_cmnd(cmd) ?
+ cmd->request->next_rq->special : &cmd->sdb;
+}
+
+static inline struct scsi_data_buffer *scsi_out(struct scsi_cmnd *cmd)
+{
+ return &cmd->sdb;
+}
+
#endif /* _SCSI_SCSI_CMND_H */
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 6c2d80b36aa1..ab7acbe80960 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -122,9 +122,6 @@ struct scsi_device {
unsigned tagged_supported:1; /* Supports SCSI-II tagged queuing */
unsigned simple_tags:1; /* simple queue tag messages are enabled */
unsigned ordered_tags:1;/* ordered queue tag messages are enabled */
- unsigned single_lun:1; /* Indicates we should only allow I/O to
- * one of the luns for the device at a
- * time. */
unsigned was_reset:1; /* There was a bus reset on the bus for
* this device */
unsigned expecting_cc_ua:1; /* Expecting a CHECK_CONDITION/UNIT_ATTN
@@ -142,6 +139,7 @@ struct scsi_device {
unsigned fix_capacity:1; /* READ_CAPACITY is too high by 1 */
unsigned guess_capacity:1; /* READ_CAPACITY might be too high by 1 */
unsigned retry_hwerror:1; /* Retry HARDWARE_ERROR */
+ unsigned last_sector_bug:1; /* Always read last sector in a 1 sector read */
DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */
struct list_head event_list; /* asserted events */
@@ -202,6 +200,9 @@ struct scsi_target {
unsigned int id; /* target id ... replace
* scsi_device.id eventually */
unsigned int create:1; /* signal that it needs to be added */
+ unsigned int single_lun:1; /* Indicates we should only
+ * allow I/O to one of the luns
+ * for the device at a time. */
unsigned int pdt_1f_for_no_lun; /* PDT = 0x1f */
/* means no lun present */
@@ -295,7 +296,7 @@ extern int scsi_mode_select(struct scsi_device *sdev, int pf, int sp,
struct scsi_mode_data *data,
struct scsi_sense_hdr *);
extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout,
- int retries);
+ int retries, struct scsi_sense_hdr *sshdr);
extern int scsi_device_set_state(struct scsi_device *sdev,
enum scsi_device_state state);
extern struct scsi_event *sdev_evt_alloc(enum scsi_device_event evt_type,
@@ -386,6 +387,10 @@ static inline int scsi_device_qas(struct scsi_device *sdev)
return 0;
return sdev->inquiry[56] & 0x02;
}
+static inline int scsi_device_enclosure(struct scsi_device *sdev)
+{
+ return sdev->inquiry[6] & (1<<6);
+}
#define MODULE_ALIAS_SCSI_DEVICE(type) \
MODULE_ALIAS("scsi:t-" __stringify(type) "*")
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index d21b8913ceb3..25071d5d9bf8 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -68,16 +68,15 @@ extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len,
extern int scsi_reset_provider(struct scsi_device *, int);
struct scsi_eh_save {
+ /* saved state */
int result;
enum dma_data_direction data_direction;
unsigned char cmd_len;
unsigned char cmnd[MAX_COMMAND_SIZE];
+ struct scsi_data_buffer sdb;
+ struct request *next_rq;
- void *buffer;
- unsigned bufflen;
- unsigned short use_sg;
- int resid;
-
+ /* new command support */
struct scatterlist sense_sgl;
};
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 0fd4746ee39d..5c58d594126a 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -39,9 +39,6 @@ struct blk_queue_tags;
#define DISABLE_CLUSTERING 0
#define ENABLE_CLUSTERING 1
-#define DISABLE_SG_CHAINING 0
-#define ENABLE_SG_CHAINING 1
-
enum scsi_eh_timer_return {
EH_NOT_HANDLED,
EH_HANDLED,
@@ -136,9 +133,9 @@ struct scsi_host_template {
* the done callback is invoked.
*
* This is called to inform the LLD to transfer
- * cmd->request_bufflen bytes. The cmd->use_sg speciefies the
+ * scsi_bufflen(cmd) bytes. scsi_sg_count(cmd) speciefies the
* number of scatterlist entried in the command and
- * cmd->request_buffer contains the scatterlist.
+ * scsi_sglist(cmd) returns the scatterlist.
*
* return values: see queuecommand
*
@@ -446,15 +443,6 @@ struct scsi_host_template {
unsigned ordered_tag:1;
/*
- * true if the low-level driver can support sg chaining. this
- * will be removed eventually when all the drivers are
- * converted to support sg chaining.
- *
- * Status: OBSOLETE
- */
- unsigned use_sg_chaining:1;
-
- /*
* Countdown for host blocking with no commands outstanding
*/
unsigned int max_host_blocked;
@@ -598,7 +586,6 @@ struct Scsi_Host {
unsigned unchecked_isa_dma:1;
unsigned use_clustering:1;
unsigned use_blk_tcq:1;
- unsigned use_sg_chaining:1;
/*
* Host has requested that no further requests come through for the
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index e466d886e192..4769efd4db24 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -176,7 +176,7 @@ struct class_device_attribute class_device_attr_vport_##_name = \
* ports has a unique presense on the SAN, and may be instantiated via
* NPIV, Virtual Fabrics, or via additional ALPAs. As the vport is a
* unique presense, each vport has it's own view of the fabric,
- * authentication priviledge, and priorities.
+ * authentication privilege, and priorities.
*
* A virtual port may support 1 or more FC4 roles. Typically it is a
* FCP Initiator. It could be a FCP Target, or exist sole for an IP over FC
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 7ff6199cbd55..404f11d331d6 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -118,7 +118,7 @@ struct iscsi_transport {
char *data, uint32_t data_size);
void (*get_stats) (struct iscsi_cls_conn *conn,
struct iscsi_stats *stats);
- void (*init_cmd_task) (struct iscsi_cmd_task *ctask);
+ int (*init_cmd_task) (struct iscsi_cmd_task *ctask);
void (*init_mgmt_task) (struct iscsi_conn *conn,
struct iscsi_mgmt_task *mtask);
int (*xmit_cmd_task) (struct iscsi_conn *conn,
@@ -176,6 +176,7 @@ struct iscsi_cls_conn {
#define ISCSI_STATE_TERMINATE 4
#define ISCSI_STATE_IN_RECOVERY 5
#define ISCSI_STATE_RECOVERY_FAILED 6
+#define ISCSI_STATE_LOGGING_OUT 7
struct iscsi_cls_session {
struct list_head sess_list; /* item in session_list */
@@ -185,6 +186,7 @@ struct iscsi_cls_session {
/* recovery fields */
int recovery_tmo;
struct delayed_work recovery_work;
+ struct work_struct unbind_work;
int target_id;
@@ -205,6 +207,8 @@ struct iscsi_cls_session {
struct iscsi_host {
struct list_head sessions;
struct mutex mutex;
+ struct workqueue_struct *unbind_workq;
+ char unbind_workq_name[KOBJ_NAME_LEN];
};
/*
@@ -214,8 +218,8 @@ extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost,
struct iscsi_transport *transport);
extern int iscsi_add_session(struct iscsi_cls_session *session,
unsigned int target_id);
-extern int iscsi_if_create_session_done(struct iscsi_cls_conn *conn);
-extern int iscsi_if_destroy_session_done(struct iscsi_cls_conn *conn);
+extern int iscsi_session_event(struct iscsi_cls_session *session,
+ enum iscsi_uevent_e event);
extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost,
struct iscsi_transport *t,
unsigned int target_id);
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
index abdfd2e27dd7..09125fa95b93 100644
--- a/include/scsi/scsi_transport_sas.h
+++ b/include/scsi/scsi_transport_sas.h
@@ -4,23 +4,17 @@
#include <linux/transport_class.h>
#include <linux/types.h>
#include <linux/mutex.h>
+#include <scsi/sas.h>
struct scsi_transport_template;
struct sas_rphy;
struct request;
enum sas_device_type {
- SAS_PHY_UNUSED,
- SAS_END_DEVICE,
- SAS_EDGE_EXPANDER_DEVICE,
- SAS_FANOUT_EXPANDER_DEVICE,
-};
-
-enum sas_protocol {
- SAS_PROTOCOL_SATA = 0x01,
- SAS_PROTOCOL_SMP = 0x02,
- SAS_PROTOCOL_STP = 0x04,
- SAS_PROTOCOL_SSP = 0x08,
+ SAS_PHY_UNUSED = 0,
+ SAS_END_DEVICE = 1,
+ SAS_EDGE_EXPANDER_DEVICE = 2,
+ SAS_FANOUT_EXPANDER_DEVICE = 3,
};
static inline int sas_protocol_ata(enum sas_protocol proto)
diff --git a/include/scsi/sd.h b/include/scsi/sd.h
index f7513313ef0d..8ea9f7358ac1 100644
--- a/include/scsi/sd.h
+++ b/include/scsi/sd.h
@@ -41,6 +41,7 @@ struct scsi_disk {
u32 index;
u8 media_present;
u8 write_prot;
+ unsigned previous_state : 1;
unsigned WCE : 1; /* state of disk WCE bit */
unsigned RCD : 1; /* state of disk RCD bit, unused */
unsigned DPOFUA : 1; /* state of disk DPOFUA bit */
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