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path: root/drivers/scsi/osd/osd_initiator.c
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Diffstat (limited to 'drivers/scsi/osd/osd_initiator.c')
-rw-r--r--drivers/scsi/osd/osd_initiator.c121
1 files changed, 100 insertions, 21 deletions
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index 7a117c18114c..950202a70bcf 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -73,7 +73,8 @@ static const char *_osd_ver_desc(struct osd_request *or)
#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[] = {
@@ -137,8 +138,12 @@ static int _osd_print_system_info(struct osd_dev *od, void *caps)
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;
@@ -171,6 +176,14 @@ static int _osd_print_system_info(struct osd_dev *od, void *caps)
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:
@@ -178,16 +191,17 @@ 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;
@@ -461,7 +475,8 @@ EXPORT_SYMBOL(osd_end_request);
int osd_execute_request(struct osd_request *or)
{
- return blk_execute_rq(or->request->q, NULL, or->request, 0);
+ return or->async_error =
+ blk_execute_rq(or->request->q, NULL, or->request, 0);
}
EXPORT_SYMBOL(osd_execute_request);
@@ -471,8 +486,12 @@ static void osd_request_async_done(struct request *req, int error)
or->async_error = error;
- if (error)
- OSD_DEBUG("osd_request_async_done error recieved %d\n", error);
+ if (unlikely(error)) {
+ OSD_DEBUG("osd_request_async_done error recieved %d "
+ "errors 0x%x\n", error, req->errors);
+ if (!req->errors) /* don't miss out on this one */
+ req->errors = error;
+ }
if (or->async_done)
or->async_done(or, or->async_private);
@@ -1153,6 +1172,7 @@ int osd_req_decode_get_attr_list(struct osd_request *or,
"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;
}
@@ -1436,6 +1456,15 @@ int osd_finalize_request(struct osd_request *or,
}
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) \
@@ -1458,9 +1487,16 @@ int osd_req_decode_sense_full(struct osd_request *or,
#else
bool __cur_sense_need_output = !silent;
#endif
+ int ret;
- if (!or->request->errors)
+ if (likely(!or->request->errors)) {
+ osi->out_resid = 0;
+ osi->in_resid = 0;
return 0;
+ }
+
+ osi = osi ? : &local_osi;
+ memset(osi, 0, sizeof(*osi));
ssdb = or->request->sense;
sense_len = or->request->sense_len;
@@ -1468,17 +1504,15 @@ int osd_req_decode_sense_full(struct osd_request *or,
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;
+ 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;
@@ -1488,9 +1522,10 @@ int osd_req_decode_sense_full(struct osd_request *or,
__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->request->errors);
if (original_sense_len < sense_len)
sense_len = original_sense_len;
@@ -1569,15 +1604,14 @@ int osd_req_decode_sense_full(struct osd_request *or,
{
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;
}
@@ -1588,6 +1622,8 @@ int osd_req_decode_sense_full(struct osd_request *or,
bad_attr_list++;
max_attr--;
}
+
+ len -= sizeof(*pattr);
OSD_SENSE_PRINT2(
"osd_sense_attribute_identification"
"attr_page=0x%x attr_id=0x%x\n",
@@ -1621,7 +1657,50 @@ int osd_req_decode_sense_full(struct osd_request *or,
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.req)
+ osi->out_resid = or->out.req->resid_len ?: or->out.total_bytes;
+ if (or->in.req)
+ osi->in_resid = or->in.req->resid_len ?: or->in.total_bytes;
+
+ return ret;
}
EXPORT_SYMBOL(osd_req_decode_sense_full);
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-11-06 18:07:45 +0100