11 files changed, 123 insertions, 7 deletions

diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 14be49b44e84..f986ab7ffe6f 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -721,7 +721,7 @@ struct libfc_function_template {
  * struct fc_disc - Discovery context
  * @retry_count:   Number of retries
  * @pending:       1 if discovery is pending, 0 if not
- * @requesting:    1 if discovery has been requested, 0 if not
+ * @requested:     1 if discovery has been requested, 0 if not
  * @seq_count:     Number of sequences used for discovery
  * @buf_len:       Length of the discovery buffer
  * @disc_id:       Discovery ID
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index d06e13be717b..3dec1949f69c 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -205,6 +205,7 @@ struct domain_device {
         };
 
         void *lldd_dev;
+        int gone;
 };
 
 struct sas_discovery_event {
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index a8f370126632..53a9e886612b 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -137,7 +137,7 @@ struct osd_request {
                 void *buff;
                 unsigned alloc_size; /* 0 here means: don't call kfree */
                 unsigned total_bytes;
-        } set_attr, enc_get_attr, get_attr;
+        } cdb_cont, set_attr, enc_get_attr, get_attr;
 
         struct _osd_io_info {
                 struct bio *bio;
@@ -448,6 +448,20 @@ void osd_req_read(struct osd_request *or,
 int osd_req_read_kern(struct osd_request *or,
         const struct osd_obj_id *obj, u64 offset, void *buff, u64 len);
 
+/* Scatter/Gather write/read commands */
+int osd_req_write_sg(struct osd_request *or,
+        const struct osd_obj_id *obj, struct bio *bio,
+        const struct osd_sg_entry *sglist, unsigned numentries);
+int osd_req_read_sg(struct osd_request *or,
+        const struct osd_obj_id *obj, struct bio *bio,
+        const struct osd_sg_entry *sglist, unsigned numentries);
+int osd_req_write_sg_kern(struct osd_request *or,
+        const struct osd_obj_id *obj, void **buff,
+        const struct osd_sg_entry *sglist, unsigned numentries);
+int osd_req_read_sg_kern(struct osd_request *or,
+        const struct osd_obj_id *obj, void **buff,
+        const struct osd_sg_entry *sglist, unsigned numentries);
+
 /*
  * Root/Partition/Collection/Object Attributes commands
  */
diff --git a/include/scsi/osd_protocol.h b/include/scsi/osd_protocol.h
index 685661283540..a6026da25f3e 100644
--- a/include/scsi/osd_protocol.h
+++ b/include/scsi/osd_protocol.h
@@ -631,4 +631,46 @@ static inline void osd_sec_set_caps(struct osd_capability_head *cap,
         put_unaligned_le16(bit_mask, &cap->permissions_bit_mask);
 }
 
+/* osd2r05a sec 5.3: CDB continuation segment formats */
+enum osd_continuation_segment_format {
+        CDB_CONTINUATION_FORMAT_V2 = 0x01,
+};
+
+struct osd_continuation_segment_header {
+        u8      format;
+        u8      reserved1;
+        __be16  service_action;
+        __be32  reserved2;
+        u8      integrity_check[OSDv2_CRYPTO_KEYID_SIZE];
+} __packed;
+
+/* osd2r05a sec 5.4.1: CDB continuation descriptors */
+enum osd_continuation_descriptor_type {
+        NO_MORE_DESCRIPTORS = 0x0000,
+        SCATTER_GATHER_LIST = 0x0001,
+        QUERY_LIST = 0x0002,
+        USER_OBJECT = 0x0003,
+        COPY_USER_OBJECT_SOURCE = 0x0101,
+        EXTENSION_CAPABILITIES = 0xFFEE
+};
+
+struct osd_continuation_descriptor_header {
+        __be16  type;
+        u8      reserved;
+        u8      pad_length;
+        __be32  length;
+} __packed;
+
+
+/* osd2r05a sec 5.4.2: Scatter/gather list */
+struct osd_sg_list_entry {
+        __be64 offset;
+        __be64 len;
+};
+
+struct osd_sg_continuation_descriptor {
+        struct osd_continuation_descriptor_header hdr;
+        struct osd_sg_list_entry entries[];
+};
+
 #endif /* ndef __OSD_PROTOCOL_H__ */
diff --git a/include/scsi/osd_types.h b/include/scsi/osd_types.h
index 3f5e88cc75c0..bd0be7ed4bcf 100644
--- a/include/scsi/osd_types.h
+++ b/include/scsi/osd_types.h
@@ -37,4 +37,9 @@ struct osd_attr {
         void *val_ptr;          /* in network order */
 };
 
+struct osd_sg_entry {
+        u64 offset;
+        u64 len;
+};
+
 #endif /* ndef __OSD_TYPES_H__ */
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 8fcb6e0e9e72..216af8538cc9 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -32,6 +32,12 @@ struct scsi_cmnd;
 #endif
 
 /*
+ * DIX-capable adapters effectively support infinite chaining for the
+ * protection information scatterlist
+ */
+#define SCSI_MAX_PROT_SG_SEGMENTS       0xFFFF
+
+/*
  * Special value for scanning to specify scanning or rescanning of all
  * possible channels, (target) ids, or luns on a given shost.
  */
@@ -67,6 +73,7 @@ struct scsi_cmnd;
 #define SEND_DIAGNOSTIC       0x1d
 #define ALLOW_MEDIUM_REMOVAL  0x1e
 
+#define READ_FORMAT_CAPACITIES 0x23
 #define SET_WINDOW            0x24
 #define READ_CAPACITY         0x25
 #define READ_10               0x28
@@ -96,6 +103,7 @@ struct scsi_cmnd;
 #define WRITE_SAME            0x41
 #define UNMAP                 0x42
 #define READ_TOC              0x43
+#define READ_HEADER           0x44
 #define LOG_SELECT            0x4c
 #define LOG_SENSE             0x4d
 #define XDWRITEREAD_10        0x53
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 50cb34ffef11..85867dcde335 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -148,6 +148,8 @@ struct scsi_device {
         unsigned retry_hwerror:1;       /* Retry HARDWARE_ERROR */
         unsigned last_sector_bug:1;     /* do not use multisector accesses on
                                            SD_LAST_BUGGY_SECTORS */
+        unsigned no_read_disc_info:1;   /* Avoid READ_DISC_INFO cmds */
+        unsigned no_read_capacity_16:1; /* Avoid READ_CAPACITY_16 cmds */
         unsigned is_visible:1;  /* is the device visible in sysfs */
 
         DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index b7bdecb7b76e..d0a6a845f204 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -388,6 +388,7 @@ struct scsi_host_template {
          * of scatter-gather.
          */
         unsigned short sg_tablesize;
+        unsigned short sg_prot_tablesize;
 
         /*
          * Set this if the host adapter has limitations beside segment count.
@@ -599,6 +600,7 @@ struct Scsi_Host {
         int can_queue;
         short cmd_per_lun;
         short unsigned int sg_tablesize;
+        short unsigned int sg_prot_tablesize;
         short unsigned int max_sectors;
         unsigned long dma_boundary;
         /* 
@@ -823,6 +825,11 @@ static inline unsigned int scsi_host_get_prot(struct Scsi_Host *shost)
         return shost->prot_capabilities;
 }
 
+static inline int scsi_host_prot_dma(struct Scsi_Host *shost)
+{
+        return shost->prot_capabilities >= SHOST_DIX_TYPE0_PROTECTION;
+}
+
 static inline unsigned int scsi_host_dif_capable(struct Scsi_Host *shost, unsigned int target_type)
 {
         static unsigned char cap[] = { 0,
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 17231385cb37..d6e7994aa634 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -97,13 +97,9 @@ static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth)
 static inline int scsi_populate_tag_msg(struct scsi_cmnd *cmd, char *msg)
 {
         struct request *req = cmd->request;
-        struct scsi_device *sdev = cmd->device;
 
         if (blk_rq_tagged(req)) {
-                if (sdev->ordered_tags && req->cmd_flags & REQ_HARDBARRIER)
-                        *msg++ = MSG_ORDERED_TAG;
-                else
-                        *msg++ = MSG_SIMPLE_TAG;
+                *msg++ = MSG_SIMPLE_TAG;
                 *msg++ = req->tag;
                 return 2;
         }
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index 87d81b3ce564..59816fe31e68 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -496,6 +496,7 @@ struct fc_host_attrs {
         u64 fabric_name;
         char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
         char system_hostname[FC_SYMBOLIC_NAME_SIZE];
+        u32 dev_loss_tmo;
 
         /* Private (Transport-managed) Attributes */
         enum fc_tgtid_binding_type  tgtid_bind_type;
@@ -580,6 +581,8 @@ struct fc_host_attrs {
         (((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q_name)
 #define fc_host_devloss_work_q(x) \
         (((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
+#define fc_host_dev_loss_tmo(x) \
+        (((struct fc_host_attrs *)(x)->shost_data)->dev_loss_tmo)
 
 
 struct fc_bsg_buffer {
diff --git a/include/scsi/srp.h b/include/scsi/srp.h
index ad178fa78f66..1ae84db4c9fb 100644
--- a/include/scsi/srp.h
+++ b/include/scsi/srp.h
@@ -239,4 +239,42 @@ struct srp_rsp {
         u8      data[0];
 } __attribute__((packed));
 
+struct srp_cred_req {
+        u8      opcode;
+        u8      sol_not;
+        u8      reserved[2];
+        __be32  req_lim_delta;
+        u64     tag;
+};
+
+struct srp_cred_rsp {
+        u8      opcode;
+        u8      reserved[7];
+        u64     tag;
+};
+
+/*
+ * The SRP spec defines the fixed portion of the AER_REQ structure to be
+ * 36 bytes, so it needs to be packed to avoid having it padded to 40 bytes
+ * on 64-bit architectures.
+ */
+struct srp_aer_req {
+        u8      opcode;
+        u8      sol_not;
+        u8      reserved[2];
+        __be32  req_lim_delta;
+        u64     tag;
+        u32     reserved2;
+        __be64  lun;
+        __be32  sense_data_len;
+        u32     reserved3;
+        u8      sense_data[0];
+} __attribute__((packed));
+
+struct srp_aer_rsp {
+        u8      opcode;
+        u8      reserved[7];
+        u64     tag;
+};
+
 #endif /* SCSI_SRP_H */