{
/* structures were not packed */
BUILD_BUG_ON(sizeof(struct osd_capability) != OSD_CAP_LEN);
+ BUILD_BUG_ON(sizeof(struct osdv2_cdb) != OSD_TOTAL_CDB_LEN);
BUILD_BUG_ON(sizeof(struct osdv1_cdb) != OSDv1_TOTAL_CDB_LEN);
}
static unsigned _osd_req_cdb_len(struct osd_request *or)
{
- return OSDv1_TOTAL_CDB_LEN;
+ return osd_req_is_ver1(or) ? OSDv1_TOTAL_CDB_LEN : OSD_TOTAL_CDB_LEN;
}
static unsigned _osd_req_alist_elem_size(struct osd_request *or, unsigned len)
{
- return osdv1_attr_list_elem_size(len);
+ return osd_req_is_ver1(or) ?
+ osdv1_attr_list_elem_size(len) :
+ osdv2_attr_list_elem_size(len);
}
static unsigned _osd_req_alist_size(struct osd_request *or, void *list_head)
{
- return osdv1_list_size(list_head);
+ return osd_req_is_ver1(or) ?
+ osdv1_list_size(list_head) :
+ osdv2_list_size(list_head);
}
static unsigned _osd_req_sizeof_alist_header(struct osd_request *or)
{
- return sizeof(struct osdv1_attributes_list_header);
+ return osd_req_is_ver1(or) ?
+ sizeof(struct osdv1_attributes_list_header) :
+ sizeof(struct osdv2_attributes_list_header);
}
static void _osd_req_set_alist_type(struct osd_request *or,
void *list, int list_type)
{
- struct osdv1_attributes_list_header *attr_list = list;
+ if (osd_req_is_ver1(or)) {
+ struct osdv1_attributes_list_header *attr_list = list;
+
+ memset(attr_list, 0, sizeof(*attr_list));
+ attr_list->type = list_type;
+ } else {
+ struct osdv2_attributes_list_header *attr_list = list;
- memset(attr_list, 0, sizeof(*attr_list));
- attr_list->type = list_type;
+ memset(attr_list, 0, sizeof(*attr_list));
+ attr_list->type = list_type;
+ }
}
static bool _osd_req_is_alist_type(struct osd_request *or,
if (!list)
return false;
- if (1) {
+ if (osd_req_is_ver1(or)) {
struct osdv1_attributes_list_header *attr_list = list;
return attr_list->type == list_type;
+ } else {
+ struct osdv2_attributes_list_header *attr_list = list;
+
+ return attr_list->type == list_type;
}
}
{
struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb);
- cdbh->v1.list_identifier = list->list_identifier;
- cdbh->v1.start_address = list->continuation_id;
+ if (osd_req_is_ver1(or)) {
+ cdbh->v1.list_identifier = list->list_identifier;
+ cdbh->v1.start_address = list->continuation_id;
+ } else {
+ cdbh->v2.list_identifier = list->list_identifier;
+ cdbh->v2.start_address = list->continuation_id;
+ }
}
static osd_cdb_offset osd_req_encode_offset(struct osd_request *or,
u64 offset, unsigned *padding)
{
return __osd_encode_offset(offset, padding,
- OSDv1_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
+ osd_req_is_ver1(or) ?
+ OSDv1_OFFSET_MIN_SHIFT : OSD_OFFSET_MIN_SHIFT,
+ OSD_OFFSET_MAX_SHIFT);
}
static struct osd_security_parameters *
{
struct osd_cdb *ocdb = &or->cdb;
- return &ocdb->v1.sec_params;
+ if (osd_req_is_ver1(or))
+ return &ocdb->v1.sec_params;
+ else
+ return &ocdb->v2.sec_params;
}
void osd_dev_init(struct osd_dev *osdd, struct scsi_device *scsi_device)
memset(osdd, 0, sizeof(*osdd));
osdd->scsi_device = scsi_device;
osdd->def_timeout = BLK_DEFAULT_SG_TIMEOUT;
+#ifdef OSD_VER1_SUPPORT
+ osdd->version = OSD_VER2;
+#endif
/* TODO: Allocate pools for osd_request attributes ... */
}
EXPORT_SYMBOL(osd_dev_init);
ocdb->h.v1.start_address = cpu_to_be64(offset);
}
+static void _osdv2_req_encode_common(struct osd_request *or,
+ __be16 act, const struct osd_obj_id *obj, u64 offset, u64 len)
+{
+ struct osdv2_cdb *ocdb = &or->cdb.v2;
+
+ OSD_DEBUG("OSDv2 execute opcode 0x%x\n", be16_to_cpu(act));
+
+ ocdb->h.varlen_cdb.opcode = VARIABLE_LENGTH_CMD;
+ ocdb->h.varlen_cdb.additional_cdb_length = OSD_ADDITIONAL_CDB_LENGTH;
+ ocdb->h.varlen_cdb.service_action = act;
+
+ ocdb->h.partition = cpu_to_be64(obj->partition);
+ ocdb->h.object = cpu_to_be64(obj->id);
+ ocdb->h.v2.length = cpu_to_be64(len);
+ ocdb->h.v2.start_address = cpu_to_be64(offset);
+}
+
static void _osd_req_encode_common(struct osd_request *or,
__be16 act, const struct osd_obj_id *obj, u64 offset, u64 len)
{
- _osdv1_req_encode_common(or, act, obj, offset, len);
+ if (osd_req_is_ver1(or))
+ _osdv1_req_encode_common(or, act, obj, offset, len);
+ else
+ _osdv2_req_encode_common(or, act, obj, offset, len);
}
/*
const struct osd_obj_id *obj, enum osd_options_flush_scope_values op,
/*V2*/ u64 offset, /*V2*/ u64 len)
{
+ if (unlikely(osd_req_is_ver1(or) && (offset || len))) {
+ OSD_DEBUG("OSD Ver1 flush on specific range ignored\n");
+ offset = 0;
+ len = 0;
+ }
+
_osd_req_encode_common(or, OSD_ACT_FLUSH, obj, offset, len);
_osd_req_encode_flush(or, op);
}
OSD_SEC_CAP_GLOBAL | OSD_SEC_CAP_DEV_MGMT
};
+enum { OSD_SEC_CAP_V2_ALL_CAPS =
+ OSD_SEC_CAP_V1_ALL_CAPS | OSD_SEC_CAP_QUERY | OSD_SEC_CAP_M_OBJECT
+};
+
void osd_sec_init_nosec_doall_caps(void *caps,
const struct osd_obj_id *obj, bool is_collection, const bool is_v1)
{
}
EXPORT_SYMBOL(osd_sec_init_nosec_doall_caps);
+/* FIXME: Extract version from caps pointer.
+ * Also Pete's target only supports caps from OSDv1 for now
+ */
void osd_set_caps(struct osd_cdb *cdb, const void *caps)
{
- memcpy(&cdb->v1.caps, caps, OSDv1_CAP_LEN);
+ bool is_ver1 = true;
+ /* NOTE: They start at same address */
+ memcpy(&cdb->v1.caps, caps, is_ver1 ? OSDv1_CAP_LEN : OSD_CAP_LEN);
}
bool osd_is_sec_alldata(struct osd_security_parameters *sec_parms __unused)
/* Note: "NI" in comments below means "Not Implemented yet" */
+/* Configure of code:
+ * #undef if you *don't* want OSD v1 support in runtime.
+ * If #defined the initiator will dynamically configure to encode OSD v1
+ * CDB's if the target is detected to be OSD v1 only.
+ * OSD v2 only commands, options, and attributes will be ignored if target
+ * is v1 only.
+ * If #defined will result in bigger/slower code (OK Slower maybe not)
+ * Q: Should this be CONFIG_SCSI_OSD_VER1_SUPPORT and set from Kconfig?
+ */
+#define OSD_VER1_SUPPORT y
+
+enum osd_std_version {
+ OSD_VER_NONE = 0,
+ OSD_VER1 = 1,
+ OSD_VER2 = 2,
+};
+
/*
* Object-based Storage Device.
* This object represents an OSD device.
struct osd_dev {
struct scsi_device *scsi_device;
unsigned def_timeout;
+
+#ifdef OSD_VER1_SUPPORT
+ enum osd_std_version version;
+#endif
};
/* Retrieve/return osd_dev(s) for use by Kernel clients */
void osd_dev_init(struct osd_dev *od, struct scsi_device *scsi_device);
void osd_dev_fini(struct osd_dev *od);
+/* we might want to use function vector in the future */
+static inline void osd_dev_set_ver(struct osd_dev *od, enum osd_std_version v)
+{
+#ifdef OSD_VER1_SUPPORT
+ od->version = v;
+#endif
+}
+
struct osd_request;
typedef void (osd_req_done_fn)(struct osd_request *or, void *private);
int async_error;
};
+/* OSD Version control */
+static inline bool osd_req_is_ver1(struct osd_request *or)
+{
+#ifdef OSD_VER1_SUPPORT
+ return or->osd_dev->version == OSD_VER1;
+#else
+ return false;
+#endif
+}
+
/*
* How to use the osd library:
*
OSDv1_TOTAL_CDB_LEN = OSDv1_ADDITIONAL_CDB_LENGTH + 8,
OSDv1_CAP_LEN = 80,
/* Latest supported version */
- OSD_ADDITIONAL_CDB_LENGTH = OSDv1_ADDITIONAL_CDB_LENGTH,
- OSD_TOTAL_CDB_LEN = OSDv1_TOTAL_CDB_LEN,
- OSD_CAP_LEN = OSDv1_CAP_LEN,
+/* OSD_ADDITIONAL_CDB_LENGTH = 216,*/
+ OSD_ADDITIONAL_CDB_LENGTH =
+ OSDv1_ADDITIONAL_CDB_LENGTH, /* FIXME: Pete rev-001 sup */
+ OSD_TOTAL_CDB_LEN = OSD_ADDITIONAL_CDB_LENGTH + 8,
+/* OSD_CAP_LEN = 104,*/
+ OSD_CAP_LEN = OSDv1_CAP_LEN,/* FIXME: Pete rev-001 sup */
OSD_SYSTEMID_LEN = 20,
OSD_CRYPTO_KEYID_SIZE = 20,
+ /*FIXME: OSDv2_CRYPTO_KEYID_SIZE = 32,*/
OSD_CRYPTO_SEED_SIZE = 4,
OSD_CRYPTO_NONCE_SIZE = 12,
OSD_MAX_SENSE_LEN = 252, /* from SPC-3 */
OSD_OFFSET_MAX_BITS = 28,
OSDv1_OFFSET_MIN_SHIFT = 8,
+ OSD_OFFSET_MIN_SHIFT = 3,
OSD_OFFSET_MAX_SHIFT = 16,
};
OSDv1_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
}
+/* Minimum 8 bytes alignment
+ * Same as v1 but since exponent can be signed than a less than
+ * 256 alignment can be reached with small offsets (<2GB)
+ */
+static inline osd_cdb_offset osd_encode_offset_v2(u64 offset, unsigned *padding)
+{
+ return __osd_encode_offset(offset, padding,
+ OSD_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
+}
+
/* osd2r03: 5.2.1 Overview */
struct osd_cdb_head {
struct scsi_varlen_cdb_hdr varlen_cdb;
/*36*/ __be64 length;
/*44*/ __be64 start_address;
} __packed v1;
+
+ struct __osdv2_cdb_addr_len {
+ /* called allocation_length in some commands */
+/*32*/ __be64 length;
+/*40*/ __be64 start_address;
+/*48*/ __be32 list_identifier;/* Rarely used */
+ } __packed v2;
};
/*52*/ union { /* selected attributes mode Page/List/Single */
struct osd_attributes_page_mode {
/*80*/
/*160 v1*/
+/*184 v2*/
struct osd_security_parameters {
/*160*/u8 integrity_check_value[OSD_CRYPTO_KEYID_SIZE];
/*180*/u8 request_nonce[OSD_CRYPTO_NONCE_SIZE];
/*196*/osd_cdb_offset data_out_integrity_check_offset;
} __packed;
/*200 v1*/
+/*224 v2*/
+
+/* FIXME: osdv2_security_parameters */
struct osdv1_cdb {
struct osd_cdb_head h;
struct osd_security_parameters sec_params;
} __packed;
+struct osdv2_cdb {
+ struct osd_cdb_head h;
+ u8 caps[OSD_CAP_LEN];
+ struct osd_security_parameters sec_params;
+ /* FIXME: osdv2_security_parameters */
+} __packed;
+
struct osd_cdb {
union {
struct osdv1_cdb v1;
+ struct osdv2_cdb v2;
u8 buff[OSD_TOTAL_CDB_LEN];
};
} __packed;
/*
* osd2r03: 7.1.3.3 List entry format for retrieved attributes and
* for setting attributes
+ * NOTE: v2 is 8-bytes aligned, v1 is not aligned.
*/
struct osd_attributes_list_element {
__be32 attr_page;
enum {
OSDv1_ATTRIBUTES_ELEM_ALIGN = 1,
+ OSD_ATTRIBUTES_ELEM_ALIGN = 8,
};
enum {
OSDv1_ATTRIBUTES_ELEM_ALIGN);
}
+static inline unsigned osdv2_attr_list_elem_size(unsigned len)
+{
+ return ALIGN(len + sizeof(struct osd_attributes_list_element),
+ OSD_ATTRIBUTES_ELEM_ALIGN);
+}
+
/*
* osd2r03: 7.1.3 OSD attributes lists (Table 184) — List type values
*/
return be16_to_cpu(h->list_bytes);
}
+struct osdv2_attributes_list_header {
+ u8 type; /* lower 4-bits only */
+ u8 pad[3];
+/*4*/ __be32 list_bytes; /* Initiator shall set to zero. Only set by target */
+ /*
+ * type=9 followed by struct osd_attributes_list_element's
+ * type=E followed by struct osd_attributes_list_multi_header's
+ */
+} __packed;
+
+static inline unsigned osdv2_list_size(struct osdv2_attributes_list_header *h)
+{
+ return be32_to_cpu(h->list_bytes);
+}
+
/* (osd-r10 6.13)
* osd2r03: 6.15 LIST (Table 79) LIST command parameter data.
* for root_lstchg below
} __packed;
/*80 v1*/
-struct osd_capability {
+/*56 v2*/
+struct osd_cap_object_descriptor {
+ union {
+ struct {
+/*56*/ __be32 allowed_attributes_access;
+/*60*/ __be32 policy_access_tag;
+/*64*/ __be16 boot_epoch;
+/*66*/ u8 reserved[6];
+/*72*/ __be64 allowed_partition_id;
+/*80*/ __be64 allowed_object_id;
+/*88*/ __be64 allowed_range_length;
+/*96*/ __be64 allowed_range_start;
+ } __packed obj_desc;
+
+/*56*/ u8 object_descriptor[48];
+ };
+} __packed;
+/*104 v2*/
+
+struct osdv1_capability {
struct osd_capability_head h;
struct osdv1_cap_object_descriptor od;
} __packed;
+struct osd_capability {
+ struct osd_capability_head h;
+/* struct osd_cap_object_descriptor od;*/
+ struct osdv1_cap_object_descriptor od; /* FIXME: Pete rev-001 sup */
+} __packed;
+
/**
* osd_sec_set_caps - set cap-bits into the capabilities header
*
projects / kernel / kernel-generic.git / commitdiff