#define ATTR_DEF_RI(id, len) ATTR_DEF(OSD_APAGE_ROOT_INFORMATION, id, len)
-static int _osd_print_system_info(struct osd_dev *od, void *caps)
+static int _osd_get_print_system_info(struct osd_dev *od,
+ void *caps, struct osd_dev_info *odi)
{
struct osd_request *or;
struct osd_attr get_attrs[] = {
OSD_INFO("PRODUCT_SERIAL_NUMBER [%s]\n",
(char *)pFirst);
- pFirst = get_attrs[a].val_ptr;
- OSD_INFO("OSD_NAME [%s]\n", (char *)pFirst);
+ odi->osdname_len = get_attrs[a].len;
+ /* Avoid NULL for memcmp optimization 0-length is good enough */
+ odi->osdname = kzalloc(odi->osdname_len + 1, GFP_KERNEL);
+ if (odi->osdname_len)
+ memcpy(odi->osdname, get_attrs[a].val_ptr, odi->osdname_len);
+ OSD_INFO("OSD_NAME [%s]\n", odi->osdname);
a++;
pFirst = get_attrs[a++].val_ptr;
sid_dump, sizeof(sid_dump), true);
OSD_INFO("OSD_SYSTEM_ID(%d)\n"
" [%s]\n", len, sid_dump);
+
+ if (unlikely(len > sizeof(odi->systemid))) {
+ OSD_ERR("OSD Target error: OSD_SYSTEM_ID too long(%d). "
+ "device idetification might not work\n", len);
+ len = sizeof(odi->systemid);
+ }
+ odi->systemid_len = len;
+ memcpy(odi->systemid, get_attrs[a].val_ptr, len);
a++;
}
out:
return ret;
}
-int osd_auto_detect_ver(struct osd_dev *od, void *caps)
+int osd_auto_detect_ver(struct osd_dev *od,
+ void *caps, struct osd_dev_info *odi)
{
int ret;
/* Auto-detect the osd version */
- ret = _osd_print_system_info(od, caps);
+ ret = _osd_get_print_system_info(od, caps, odi);
if (ret) {
osd_dev_set_ver(od, OSD_VER1);
OSD_DEBUG("converting to OSD1\n");
- ret = _osd_print_system_info(od, caps);
+ ret = _osd_get_print_system_info(od, caps, odi);
}
return ret;
seg->alloc_size = 0;
}
-static void _put_request(struct request *rq , bool is_async)
+static void _put_request(struct request *rq)
{
- 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);
- }
+ /*
+ * 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) {
- _put_request(rq->next_rq, is_async);
+ _put_request(rq->next_rq);
rq->next_rq = NULL;
}
- _put_request(rq, is_async);
+ _put_request(rq);
}
_osd_request_free(or);
}
EXPORT_SYMBOL(osd_end_request);
+static void _set_error_resid(struct osd_request *or, struct request *req,
+ int error)
+{
+ or->async_error = error;
+ or->req_errors = req->errors ? : error;
+ or->sense_len = req->sense_len;
+ if (or->out.req)
+ or->out.residual = or->out.req->resid_len;
+ if (or->in.req)
+ or->in.residual = or->in.req->resid_len;
+}
+
int osd_execute_request(struct osd_request *or)
{
- return blk_execute_rq(or->request->q, NULL, or->request, 0);
+ int error = blk_execute_rq(or->request->q, NULL, or->request, 0);
+
+ _set_error_resid(or, or->request, error);
+ return error;
}
EXPORT_SYMBOL(osd_execute_request);
{
struct osd_request *or = req->end_io_data;
- or->async_error = error;
+ _set_error_resid(or, req, error);
+ if (req->next_rq) {
+ __blk_put_request(req->q, req->next_rq);
+ req->next_rq = NULL;
+ }
- if (error)
- OSD_DEBUG("osd_request_async_done error recieved %d\n", error);
+ __blk_put_request(req->q, req);
+ or->request = NULL;
+ or->in.req = NULL;
+ or->out.req = NULL;
if (or->async_done)
or->async_done(or, or->async_private);
__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;
*/
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 = or->osd_dev->scsi_device->request_queue;
+ 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_write(or, obj, bio, offset);
+ 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);
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 = or->osd_dev->scsi_device->request_queue;
+ 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, bio, offset);
+ osd_req_read(or, obj, offset, bio, len);
return 0;
}
EXPORT_SYMBOL(osd_req_read_kern);
}
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;
"c=%d r=%d n=%d\n",
cur_bytes, returned_bytes, n);
oa->val_ptr = NULL;
+ cur_bytes = returned_bytes; /* break the caller loop */
break;
}
}
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(
/*
* 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;
}
EXPORT_SYMBOL(osd_finalize_request);
+static bool _is_osd_security_code(int code)
+{
+ return (code == osd_security_audit_value_frozen) ||
+ (code == osd_security_working_key_frozen) ||
+ (code == osd_nonce_not_unique) ||
+ (code == osd_nonce_timestamp_out_of_range) ||
+ (code == osd_invalid_dataout_buffer_integrity_check_value);
+}
+
#define OSD_SENSE_PRINT1(fmt, a...) \
do { \
if (__cur_sense_need_output) \
#else
bool __cur_sense_need_output = !silent;
#endif
+ int ret;
- if (!or->request->errors)
+ if (likely(!or->req_errors))
return 0;
- ssdb = or->request->sense;
- sense_len = or->request->sense_len;
+ osi = osi ? : &local_osi;
+ memset(osi, 0, sizeof(*osi));
+
+ ssdb = (typeof(ssdb))or->sense;
+ sense_len = or->sense_len;
if ((sense_len < (int)sizeof(*ssdb) || !ssdb->sense_key)) {
OSD_ERR("Block-layer returned error(0x%x) but "
"sense_len(%u) || key(%d) is empty\n",
- or->request->errors, sense_len, ssdb->sense_key);
- return -EIO;
+ or->req_errors, sense_len, ssdb->sense_key);
+ goto analyze;
}
if ((ssdb->response_code != 0x72) && (ssdb->response_code != 0x73)) {
OSD_ERR("Unrecognized scsi sense: rcode=%x length=%d\n",
ssdb->response_code, sense_len);
- return -EIO;
+ goto analyze;
}
- osi = osi ? : &local_osi;
- memset(osi, 0, sizeof(*osi));
osi->key = ssdb->sense_key;
osi->additional_code = be16_to_cpu(ssdb->additional_sense_code);
original_sense_len = ssdb->additional_sense_length + 8;
__cur_sense_need_output = (osi->key > scsi_sk_recovered_error);
#endif
OSD_SENSE_PRINT1("Main Sense information key=0x%x length(%d, %d) "
- "additional_code=0x%x\n",
+ "additional_code=0x%x async_error=%d errors=0x%x\n",
osi->key, original_sense_len, sense_len,
- osi->additional_code);
+ osi->additional_code, or->async_error,
+ or->req_errors);
if (original_sense_len < sense_len)
sense_len = original_sense_len;
{
struct osd_sense_attributes_data_descriptor
*osadd = cur_descriptor;
- int len = min(cur_len, sense_len);
- int i = 0;
+ unsigned len = min(cur_len, sense_len);
struct osd_sense_attr *pattr = osadd->sense_attrs;
- while (len < 0) {
+ while (len >= sizeof(*pattr)) {
u32 attr_page = be32_to_cpu(pattr->attr_page);
u32 attr_id = be32_to_cpu(pattr->attr_id);
- if (i++ == 0) {
+ if (!osi->attr.attr_page) {
osi->attr.attr_page = attr_page;
osi->attr.attr_id = attr_id;
}
bad_attr_list++;
max_attr--;
}
+
+ len -= sizeof(*pattr);
OSD_SENSE_PRINT2(
"osd_sense_attribute_identification"
"attr_page=0x%x attr_id=0x%x\n",
cur_descriptor += cur_len;
}
- return (osi->key > scsi_sk_recovered_error) ? -EIO : 0;
+analyze:
+ if (!osi->key) {
+ /* scsi sense is Empty, the request was never issued to target
+ * linux return code might tell us what happened.
+ */
+ if (or->async_error == -ENOMEM)
+ osi->osd_err_pri = OSD_ERR_PRI_RESOURCE;
+ else
+ osi->osd_err_pri = OSD_ERR_PRI_UNREACHABLE;
+ ret = or->async_error;
+ } else if (osi->key <= scsi_sk_recovered_error) {
+ osi->osd_err_pri = 0;
+ ret = 0;
+ } else if (osi->additional_code == scsi_invalid_field_in_cdb) {
+ if (osi->cdb_field_offset == OSD_CFO_STARTING_BYTE) {
+ osi->osd_err_pri = OSD_ERR_PRI_CLEAR_PAGES;
+ ret = -EFAULT; /* caller should recover from this */
+ } else if (osi->cdb_field_offset == OSD_CFO_OBJECT_ID) {
+ osi->osd_err_pri = OSD_ERR_PRI_NOT_FOUND;
+ ret = -ENOENT;
+ } else if (osi->cdb_field_offset == OSD_CFO_PERMISSIONS) {
+ osi->osd_err_pri = OSD_ERR_PRI_NO_ACCESS;
+ ret = -EACCES;
+ } else {
+ osi->osd_err_pri = OSD_ERR_PRI_BAD_CRED;
+ ret = -EINVAL;
+ }
+ } else if (osi->additional_code == osd_quota_error) {
+ osi->osd_err_pri = OSD_ERR_PRI_NO_SPACE;
+ ret = -ENOSPC;
+ } else if (_is_osd_security_code(osi->additional_code)) {
+ osi->osd_err_pri = OSD_ERR_PRI_BAD_CRED;
+ ret = -EINVAL;
+ } else {
+ osi->osd_err_pri = OSD_ERR_PRI_EIO;
+ ret = -EIO;
+ }
+
+ if (!or->out.residual)
+ or->out.residual = or->out.total_bytes;
+ if (!or->in.residual)
+ or->in.residual = or->in.total_bytes;
+
+ return ret;
}
EXPORT_SYMBOL(osd_req_decode_sense_full);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff