_osd_ver_desc(or));
pFirst = get_attrs[a++].val_ptr;
- OSD_INFO("OSD_ATTR_RI_VENDOR_IDENTIFICATION [%s]\n",
+ OSD_INFO("VENDOR_IDENTIFICATION [%s]\n",
(char *)pFirst);
pFirst = get_attrs[a++].val_ptr;
- OSD_INFO("OSD_ATTR_RI_PRODUCT_IDENTIFICATION [%s]\n",
+ OSD_INFO("PRODUCT_IDENTIFICATION [%s]\n",
(char *)pFirst);
pFirst = get_attrs[a++].val_ptr;
- OSD_INFO("OSD_ATTR_RI_PRODUCT_MODEL [%s]\n",
+ OSD_INFO("PRODUCT_MODEL [%s]\n",
(char *)pFirst);
pFirst = get_attrs[a++].val_ptr;
- OSD_INFO("OSD_ATTR_RI_PRODUCT_REVISION_LEVEL [%u]\n",
+ OSD_INFO("PRODUCT_REVISION_LEVEL [%u]\n",
pFirst ? get_unaligned_be32(pFirst) : ~0U);
pFirst = get_attrs[a++].val_ptr;
- OSD_INFO("OSD_ATTR_RI_PRODUCT_SERIAL_NUMBER [%s]\n",
+ OSD_INFO("PRODUCT_SERIAL_NUMBER [%s]\n",
(char *)pFirst);
pFirst = get_attrs[a].val_ptr;
- OSD_INFO("OSD_ATTR_RI_OSD_NAME [%s]\n", (char *)pFirst);
+ OSD_INFO("OSD_NAME [%s]\n", (char *)pFirst);
a++;
pFirst = get_attrs[a++].val_ptr;
- OSD_INFO("OSD_ATTR_RI_TOTAL_CAPACITY [0x%llx]\n",
+ OSD_INFO("TOTAL_CAPACITY [0x%llx]\n",
pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL);
pFirst = get_attrs[a++].val_ptr;
- OSD_INFO("OSD_ATTR_RI_USED_CAPACITY [0x%llx]\n",
+ OSD_INFO("USED_CAPACITY [0x%llx]\n",
pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL);
pFirst = get_attrs[a++].val_ptr;
- OSD_INFO("OSD_ATTR_RI_NUMBER_OF_PARTITIONS [%llu]\n",
+ OSD_INFO("NUMBER_OF_PARTITIONS [%llu]\n",
pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL);
if (a >= nelem)
/* FIXME: Where are the time utilities */
pFirst = get_attrs[a++].val_ptr;
- OSD_INFO("OSD_ATTR_RI_CLOCK [0x%02x%02x%02x%02x%02x%02x]\n",
+ OSD_INFO("CLOCK [0x%02x%02x%02x%02x%02x%02x]\n",
((char *)pFirst)[0], ((char *)pFirst)[1],
((char *)pFirst)[2], ((char *)pFirst)[3],
((char *)pFirst)[4], ((char *)pFirst)[5]);
hex_dump_to_buffer(get_attrs[a].val_ptr, len, 32, 1,
sid_dump, sizeof(sid_dump), true);
- OSD_INFO("OSD_ATTR_RI_OSD_SYSTEM_ID(%d) [%s]\n", len, sid_dump);
+ OSD_INFO("OSD_SYSTEM_ID(%d)\n"
+ " [%s]\n", len, sid_dump);
a++;
}
out:
osdv2_attr_list_elem_size(len);
}
+static void _osd_req_alist_elem_encode(struct osd_request *or,
+ void *attr_last, const struct osd_attr *oa)
+{
+ if (osd_req_is_ver1(or)) {
+ struct osdv1_attributes_list_element *attr = attr_last;
+
+ attr->attr_page = cpu_to_be32(oa->attr_page);
+ attr->attr_id = cpu_to_be32(oa->attr_id);
+ attr->attr_bytes = cpu_to_be16(oa->len);
+ memcpy(attr->attr_val, oa->val_ptr, oa->len);
+ } else {
+ struct osdv2_attributes_list_element *attr = attr_last;
+
+ attr->attr_page = cpu_to_be32(oa->attr_page);
+ attr->attr_id = cpu_to_be32(oa->attr_id);
+ attr->attr_bytes = cpu_to_be16(oa->len);
+ memcpy(attr->attr_val, oa->val_ptr, oa->len);
+ }
+}
+
+static int _osd_req_alist_elem_decode(struct osd_request *or,
+ void *cur_p, struct osd_attr *oa, unsigned max_bytes)
+{
+ unsigned inc;
+ if (osd_req_is_ver1(or)) {
+ struct osdv1_attributes_list_element *attr = cur_p;
+
+ if (max_bytes < sizeof(*attr))
+ return -1;
+
+ oa->len = be16_to_cpu(attr->attr_bytes);
+ inc = _osd_req_alist_elem_size(or, oa->len);
+ if (inc > max_bytes)
+ return -1;
+
+ oa->attr_page = be32_to_cpu(attr->attr_page);
+ oa->attr_id = be32_to_cpu(attr->attr_id);
+
+ /* OSD1: On empty attributes we return a pointer to 2 bytes
+ * of zeros. This keeps similar behaviour with OSD2.
+ * (See below)
+ */
+ oa->val_ptr = likely(oa->len) ? attr->attr_val :
+ (u8 *)&attr->attr_bytes;
+ } else {
+ struct osdv2_attributes_list_element *attr = cur_p;
+
+ if (max_bytes < sizeof(*attr))
+ return -1;
+
+ oa->len = be16_to_cpu(attr->attr_bytes);
+ inc = _osd_req_alist_elem_size(or, oa->len);
+ if (inc > max_bytes)
+ return -1;
+
+ oa->attr_page = be32_to_cpu(attr->attr_page);
+ oa->attr_id = be32_to_cpu(attr->attr_id);
+
+ /* OSD2: For convenience, on empty attributes, we return 8 bytes
+ * of zeros here. This keeps the same behaviour with OSD2r04,
+ * and is nice with null terminating ASCII fields.
+ * oa->val_ptr == NULL marks the end-of-list, or error.
+ */
+ oa->val_ptr = likely(oa->len) ? attr->attr_val : attr->reserved;
+ }
+ return inc;
+}
+
static unsigned _osd_req_alist_size(struct osd_request *or, void *list_head)
{
return osd_req_is_ver1(or) ?
struct osd_cdb *ocdb = &or->cdb;
if (osd_req_is_ver1(or))
- return &ocdb->v1.sec_params;
+ return (struct osd_security_parameters *)&ocdb->v1.sec_params;
else
- return &ocdb->v2.sec_params;
+ return (struct osd_security_parameters *)&ocdb->v2.sec_params;
}
void osd_dev_init(struct osd_dev *osdd, struct scsi_device *scsi_device)
}
EXPORT_SYMBOL(osd_start_request);
-/*
- * If osd_finalize_request() was called but the request was not executed through
- * the block layer, then we must release BIOs.
- */
-static void _abort_unexecuted_bios(struct request *rq)
-{
- struct bio *bio;
-
- while ((bio = rq->bio) != NULL) {
- rq->bio = bio->bi_next;
- bio_endio(bio, 0);
- }
-}
-
static void _osd_free_seg(struct osd_request *or __unused,
struct _osd_req_data_segment *seg)
{
seg->alloc_size = 0;
}
+static void _put_request(struct request *rq , bool is_async)
+{
+ if (is_async) {
+ WARN_ON(rq->bio);
+ __blk_put_request(rq->q, rq);
+ } else {
+ /*
+ * If osd_finalize_request() was called but the request was not
+ * executed through the block layer, then we must release BIOs.
+ * TODO: Keep error code in or->async_error. Need to audit all
+ * code paths.
+ */
+ if (unlikely(rq->bio))
+ blk_end_request(rq, -ENOMEM, blk_rq_bytes(rq));
+ else
+ blk_put_request(rq);
+ }
+}
+
void osd_end_request(struct osd_request *or)
{
struct request *rq = or->request;
+ /* IMPORTANT: make sure this agrees with osd_execute_request_async */
+ bool is_async = (or->request->end_io_data == or);
_osd_free_seg(or, &or->set_attr);
_osd_free_seg(or, &or->enc_get_attr);
if (rq) {
if (rq->next_rq) {
- _abort_unexecuted_bios(rq->next_rq);
- blk_put_request(rq->next_rq);
+ _put_request(rq->next_rq, is_async);
+ rq->next_rq = NULL;
}
- _abort_unexecuted_bios(rq);
- blk_put_request(rq);
+ _put_request(rq, is_async);
}
_osd_request_free(or);
}
__be16 action, const struct osd_obj_id *obj, osd_id initial_id,
struct osd_obj_id_list *list, unsigned nelem)
{
- struct request_queue *q = or->osd_dev->scsi_device->request_queue;
+ struct request_queue *q = osd_request_queue(or->osd_dev);
u64 len = nelem * sizeof(osd_id) + sizeof(*list);
struct bio *bio;
WARN_ON(or->in.bio);
bio = bio_map_kern(q, list, len, or->alloc_flags);
- if (!bio) {
+ if (IS_ERR(bio)) {
OSD_ERR("!!! Failed to allocate list_objects BIO\n");
- return -ENOMEM;
+ return PTR_ERR(bio);
}
bio->bi_rw &= ~(1 << BIO_RW);
*/
void osd_req_write(struct osd_request *or,
- const struct osd_obj_id *obj, struct bio *bio, u64 offset)
+ const struct osd_obj_id *obj, u64 offset,
+ struct bio *bio, u64 len)
{
- _osd_req_encode_common(or, OSD_ACT_WRITE, obj, offset, bio->bi_size);
+ _osd_req_encode_common(or, OSD_ACT_WRITE, obj, offset, len);
WARN_ON(or->out.bio || or->out.total_bytes);
- bio->bi_rw |= (1 << BIO_RW);
+ WARN_ON(0 == bio_rw_flagged(bio, BIO_RW));
or->out.bio = bio;
- or->out.total_bytes = bio->bi_size;
+ or->out.total_bytes = len;
}
EXPORT_SYMBOL(osd_req_write);
+int osd_req_write_kern(struct osd_request *or,
+ const struct osd_obj_id *obj, u64 offset, void* buff, u64 len)
+{
+ struct request_queue *req_q = osd_request_queue(or->osd_dev);
+ struct bio *bio = bio_map_kern(req_q, buff, len, GFP_KERNEL);
+
+ if (IS_ERR(bio))
+ return PTR_ERR(bio);
+
+ bio->bi_rw |= (1 << BIO_RW); /* FIXME: bio_set_dir() */
+ osd_req_write(or, obj, offset, bio, len);
+ return 0;
+}
+EXPORT_SYMBOL(osd_req_write_kern);
+
/*TODO: void osd_req_append(struct osd_request *,
const struct osd_obj_id *, struct bio *data_out); */
/*TODO: void osd_req_create_write(struct osd_request *,
EXPORT_SYMBOL(osd_req_flush_object);
void osd_req_read(struct osd_request *or,
- const struct osd_obj_id *obj, struct bio *bio, u64 offset)
+ const struct osd_obj_id *obj, u64 offset,
+ struct bio *bio, u64 len)
{
- _osd_req_encode_common(or, OSD_ACT_READ, obj, offset, bio->bi_size);
+ _osd_req_encode_common(or, OSD_ACT_READ, obj, offset, len);
WARN_ON(or->in.bio || or->in.total_bytes);
- bio->bi_rw &= ~(1 << BIO_RW);
+ WARN_ON(1 == bio_rw_flagged(bio, BIO_RW));
or->in.bio = bio;
- or->in.total_bytes = bio->bi_size;
+ or->in.total_bytes = len;
}
EXPORT_SYMBOL(osd_req_read);
+int osd_req_read_kern(struct osd_request *or,
+ const struct osd_obj_id *obj, u64 offset, void* buff, u64 len)
+{
+ struct request_queue *req_q = osd_request_queue(or->osd_dev);
+ struct bio *bio = bio_map_kern(req_q, buff, len, GFP_KERNEL);
+
+ if (IS_ERR(bio))
+ return PTR_ERR(bio);
+
+ osd_req_read(or, obj, offset, bio, len);
+ return 0;
+}
+EXPORT_SYMBOL(osd_req_read_kern);
+
void osd_req_get_attributes(struct osd_request *or,
const struct osd_obj_id *obj)
{
attr_last = or->set_attr.buff + total_bytes;
for (; nelem; --nelem) {
- struct osd_attributes_list_element *attr;
unsigned elem_size = _osd_req_alist_elem_size(or, oa->len);
total_bytes += elem_size;
or->set_attr.buff + or->set_attr.total_bytes;
}
- attr = attr_last;
- attr->attr_page = cpu_to_be32(oa->attr_page);
- attr->attr_id = cpu_to_be32(oa->attr_id);
- attr->attr_bytes = cpu_to_be16(oa->len);
- memcpy(attr->attr_val, oa->val_ptr, oa->len);
+ _osd_req_alist_elem_encode(or, attr_last, oa);
attr_last += elem_size;
++oa;
}
EXPORT_SYMBOL(osd_req_add_set_attr_list);
-static int _append_map_kern(struct request *req,
- void *buff, unsigned len, gfp_t flags)
-{
- struct bio *bio;
- int ret;
-
- bio = bio_map_kern(req->q, buff, len, flags);
- if (IS_ERR(bio)) {
- OSD_ERR("Failed bio_map_kern(%p, %d) => %ld\n", buff, len,
- PTR_ERR(bio));
- return PTR_ERR(bio);
- }
- ret = blk_rq_append_bio(req->q, req, bio);
- if (ret) {
- OSD_ERR("Failed blk_rq_append_bio(%p) => %d\n", bio, ret);
- bio_put(bio);
- }
- return ret;
-}
-
static int _req_append_segment(struct osd_request *or,
unsigned padding, struct _osd_req_data_segment *seg,
struct _osd_req_data_segment *last_seg, struct _osd_io_info *io)
else
pad_buff = io->pad_buff;
- ret = _append_map_kern(io->req, pad_buff, padding,
+ ret = blk_rq_map_kern(io->req->q, io->req, pad_buff, padding,
or->alloc_flags);
if (ret)
return ret;
io->total_bytes += padding;
}
- ret = _append_map_kern(io->req, seg->buff, seg->total_bytes,
+ ret = blk_rq_map_kern(io->req->q, io->req, seg->buff, seg->total_bytes,
or->alloc_flags);
if (ret)
return ret;
}
for (n = 0; (n < *nelem) && (cur_bytes < returned_bytes); ++n) {
- struct osd_attributes_list_element *attr = cur_p;
- unsigned inc;
+ int inc = _osd_req_alist_elem_decode(or, cur_p, oa,
+ returned_bytes - cur_bytes);
- oa->len = be16_to_cpu(attr->attr_bytes);
- inc = _osd_req_alist_elem_size(or, oa->len);
- OSD_DEBUG("oa->len=%d inc=%d cur_bytes=%d\n",
- oa->len, inc, cur_bytes);
- cur_bytes += inc;
- if (cur_bytes > returned_bytes) {
+ if (inc < 0) {
OSD_ERR("BAD FOOD from target. list not valid!"
"c=%d r=%d n=%d\n",
cur_bytes, returned_bytes, n);
break;
}
- oa->attr_page = be32_to_cpu(attr->attr_page);
- oa->attr_id = be32_to_cpu(attr->attr_id);
- oa->val_ptr = attr->attr_val;
-
+ cur_bytes += inc;
cur_p += inc;
++oa;
}
return ret;
}
+static inline void osd_sec_parms_set_out_offset(bool is_v1,
+ struct osd_security_parameters *sec_parms, osd_cdb_offset offset)
+{
+ if (is_v1)
+ sec_parms->v1.data_out_integrity_check_offset = offset;
+ else
+ sec_parms->v2.data_out_integrity_check_offset = offset;
+}
+
+static inline void osd_sec_parms_set_in_offset(bool is_v1,
+ struct osd_security_parameters *sec_parms, osd_cdb_offset offset)
+{
+ if (is_v1)
+ sec_parms->v1.data_in_integrity_check_offset = offset;
+ else
+ sec_parms->v2.data_in_integrity_check_offset = offset;
+}
+
static int _osd_req_finalize_data_integrity(struct osd_request *or,
- bool has_in, bool has_out, const u8 *cap_key)
+ bool has_in, bool has_out, u64 out_data_bytes, const u8 *cap_key)
{
struct osd_security_parameters *sec_parms = _osd_req_sec_params(or);
int ret;
};
unsigned pad;
- or->out_data_integ.data_bytes = cpu_to_be64(
- or->out.bio ? or->out.bio->bi_size : 0);
+ or->out_data_integ.data_bytes = cpu_to_be64(out_data_bytes);
or->out_data_integ.set_attributes_bytes = cpu_to_be64(
or->set_attr.total_bytes);
or->out_data_integ.get_attributes_bytes = cpu_to_be64(
or->enc_get_attr.total_bytes);
- sec_parms->data_out_integrity_check_offset =
- osd_req_encode_offset(or, or->out.total_bytes, &pad);
+ osd_sec_parms_set_out_offset(osd_req_is_ver1(or), sec_parms,
+ osd_req_encode_offset(or, or->out.total_bytes, &pad));
ret = _req_append_segment(or, pad, &seg, or->out.last_seg,
&or->out);
};
unsigned pad;
- sec_parms->data_in_integrity_check_offset =
- osd_req_encode_offset(or, or->in.total_bytes, &pad);
+ osd_sec_parms_set_in_offset(osd_req_is_ver1(or), sec_parms,
+ osd_req_encode_offset(or, or->in.total_bytes, &pad));
ret = _req_append_segment(or, pad, &seg, or->in.last_seg,
&or->in);
/*
* osd_finalize_request and helpers
*/
+static struct request *_make_request(struct request_queue *q, bool has_write,
+ struct _osd_io_info *oii, gfp_t flags)
+{
+ if (oii->bio)
+ return blk_make_request(q, oii->bio, flags);
+ else {
+ struct request *req;
+
+ req = blk_get_request(q, has_write ? WRITE : READ, flags);
+ if (unlikely(!req))
+ return ERR_PTR(-ENOMEM);
+
+ return req;
+ }
+}
static int _init_blk_request(struct osd_request *or,
bool has_in, bool has_out)
struct scsi_device *scsi_device = or->osd_dev->scsi_device;
struct request_queue *q = scsi_device->request_queue;
struct request *req;
- int ret = -ENOMEM;
+ int ret;
- req = blk_get_request(q, has_out, flags);
- if (!req)
+ req = _make_request(q, has_out, has_out ? &or->out : &or->in, flags);
+ if (IS_ERR(req)) {
+ ret = PTR_ERR(req);
goto out;
+ }
or->request = req;
req->cmd_type = REQ_TYPE_BLOCK_PC;
+ req->cmd_flags |= REQ_QUIET;
+
req->timeout = or->timeout;
req->retries = or->retries;
req->sense = or->sense;
or->out.req = req;
if (has_in) {
/* allocate bidi request */
- req = blk_get_request(q, READ, flags);
- if (!req) {
+ req = _make_request(q, false, &or->in, flags);
+ if (IS_ERR(req)) {
OSD_DEBUG("blk_get_request for bidi failed\n");
+ ret = PTR_ERR(req);
goto out;
}
req->cmd_type = REQ_TYPE_BLOCK_PC;
{
struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb);
bool has_in, has_out;
+ u64 out_data_bytes = or->out.total_bytes;
int ret;
if (options & OSD_REQ_FUA)
return ret;
}
- if (or->out.bio) {
- ret = blk_rq_append_bio(or->request->q, or->out.req,
- or->out.bio);
- if (ret) {
- OSD_DEBUG("blk_rq_append_bio out failed\n");
- return ret;
- }
- OSD_DEBUG("out bytes=%llu (bytes_req=%u)\n",
- _LLU(or->out.total_bytes), or->out.req->data_len);
- }
- if (or->in.bio) {
- ret = blk_rq_append_bio(or->request->q, or->in.req, or->in.bio);
- if (ret) {
- OSD_DEBUG("blk_rq_append_bio in failed\n");
- return ret;
- }
- OSD_DEBUG("in bytes=%llu (bytes_req=%u)\n",
- _LLU(or->in.total_bytes), or->in.req->data_len);
- }
-
or->out.pad_buff = sg_out_pad_buffer;
or->in.pad_buff = sg_in_pad_buffer;
}
}
- ret = _osd_req_finalize_data_integrity(or, has_in, has_out, cap_key);
+ ret = _osd_req_finalize_data_integrity(or, has_in, has_out,
+ out_data_bytes, cap_key);
if (ret)
return ret;
git.openpandora.org / pandora-kernel.git / blobdiff