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-rw-r--r--drivers/infiniband/ulp/isert/ib_isert.c268
-rw-r--r--drivers/infiniband/ulp/isert/ib_isert.h5
-rw-r--r--drivers/infiniband/ulp/srpt/ib_srpt.c27
-rw-r--r--drivers/scsi/qla2xxx/qla_target.c151
-rw-r--r--drivers/scsi/qla2xxx/tcm_qla2xxx.c10
-rw-r--r--drivers/target/iscsi/iscsi_target.c768
-rw-r--r--drivers/target/iscsi/iscsi_target.h2
-rw-r--r--drivers/target/iscsi/iscsi_target_configfs.c184
-rw-r--r--drivers/target/iscsi/iscsi_target_core.h11
-rw-r--r--drivers/target/iscsi/iscsi_target_erl0.c8
-rw-r--r--drivers/target/iscsi/iscsi_target_erl1.c26
-rw-r--r--drivers/target/iscsi/iscsi_target_nego.c13
-rw-r--r--drivers/target/iscsi/iscsi_target_parameters.c3
-rw-r--r--drivers/target/iscsi/iscsi_target_util.c28
-rw-r--r--drivers/target/iscsi/iscsi_target_util.h3
-rw-r--r--drivers/target/loopback/tcm_loop.c3
-rw-r--r--drivers/target/sbp/sbp_target.c3
-rw-r--r--drivers/target/target_core_configfs.c13
-rw-r--r--drivers/target/target_core_device.c5
-rw-r--r--drivers/target/target_core_fabric_configfs.c21
-rw-r--r--drivers/target/target_core_pr.c499
-rw-r--r--drivers/target/target_core_pr.h2
-rw-r--r--drivers/target/target_core_rd.c5
-rw-r--r--drivers/target/target_core_sbc.c18
-rw-r--r--drivers/target/target_core_tmr.c12
-rw-r--r--drivers/target/target_core_transport.c87
-rw-r--r--drivers/target/tcm_fc/tcm_fc.h2
-rw-r--r--drivers/target/tcm_fc/tfc_cmd.c8
-rw-r--r--drivers/usb/gadget/tcm_usb_gadget.c3
-rw-r--r--drivers/vhost/scsi.c37
-rw-r--r--include/target/iscsi/iscsi_transport.h21
-rw-r--r--include/target/target_core_base.h23
-rw-r--r--include/target/target_core_configfs.h1
-rw-r--r--include/target/target_core_fabric.h2
-rw-r--r--include/target/target_core_fabric_configfs.h11
-rw-r--r--include/trace/events/target.h214
36 files changed, 1413 insertions, 1084 deletions
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 2693129..3f62041 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -388,6 +388,7 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
init_waitqueue_head(&isert_conn->conn_wait_comp_err);
kref_init(&isert_conn->conn_kref);
kref_get(&isert_conn->conn_kref);
+ mutex_init(&isert_conn->conn_mutex);
cma_id->context = isert_conn;
isert_conn->conn_cm_id = cma_id;
@@ -540,15 +541,32 @@ isert_disconnect_work(struct work_struct *work)
struct isert_conn, conn_logout_work);
pr_debug("isert_disconnect_work(): >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
-
+ mutex_lock(&isert_conn->conn_mutex);
isert_conn->state = ISER_CONN_DOWN;
if (isert_conn->post_recv_buf_count == 0 &&
atomic_read(&isert_conn->post_send_buf_count) == 0) {
pr_debug("Calling wake_up(&isert_conn->conn_wait);\n");
- wake_up(&isert_conn->conn_wait);
+ mutex_unlock(&isert_conn->conn_mutex);
+ goto wake_up;
+ }
+ if (!isert_conn->conn_cm_id) {
+ mutex_unlock(&isert_conn->conn_mutex);
+ isert_put_conn(isert_conn);
+ return;
}
+ if (!isert_conn->logout_posted) {
+ pr_debug("Calling rdma_disconnect for !logout_posted from"
+ " isert_disconnect_work\n");
+ rdma_disconnect(isert_conn->conn_cm_id);
+ mutex_unlock(&isert_conn->conn_mutex);
+ iscsit_cause_connection_reinstatement(isert_conn->conn, 0);
+ goto wake_up;
+ }
+ mutex_unlock(&isert_conn->conn_mutex);
+wake_up:
+ wake_up(&isert_conn->conn_wait);
isert_put_conn(isert_conn);
}
@@ -934,16 +952,11 @@ isert_handle_scsi_cmd(struct isert_conn *isert_conn,
}
sequence_cmd:
- rc = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
+ rc = iscsit_sequence_cmd(conn, cmd, buf, hdr->cmdsn);
if (!rc && dump_payload == false && unsol_data)
iscsit_set_unsoliticed_dataout(cmd);
- if (rc == CMDSN_ERROR_CANNOT_RECOVER)
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_PROTOCOL_ERROR,
- 1, 0, (unsigned char *)hdr, cmd);
-
return 0;
}
@@ -1001,17 +1014,71 @@ isert_handle_iscsi_dataout(struct isert_conn *isert_conn,
}
static int
+isert_handle_nop_out(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd,
+ struct iser_rx_desc *rx_desc, unsigned char *buf)
+{
+ struct iscsi_cmd *cmd = &isert_cmd->iscsi_cmd;
+ struct iscsi_conn *conn = isert_conn->conn;
+ struct iscsi_nopout *hdr = (struct iscsi_nopout *)buf;
+ int rc;
+
+ rc = iscsit_setup_nop_out(conn, cmd, hdr);
+ if (rc < 0)
+ return rc;
+ /*
+ * FIXME: Add support for NOPOUT payload using unsolicited RDMA payload
+ */
+
+ return iscsit_process_nop_out(conn, cmd, hdr);
+}
+
+static int
+isert_handle_text_cmd(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd,
+ struct iser_rx_desc *rx_desc, struct iscsi_text *hdr)
+{
+ struct iscsi_cmd *cmd = &isert_cmd->iscsi_cmd;
+ struct iscsi_conn *conn = isert_conn->conn;
+ u32 payload_length = ntoh24(hdr->dlength);
+ int rc;
+ unsigned char *text_in;
+
+ rc = iscsit_setup_text_cmd(conn, cmd, hdr);
+ if (rc < 0)
+ return rc;
+
+ text_in = kzalloc(payload_length, GFP_KERNEL);
+ if (!text_in) {
+ pr_err("Unable to allocate text_in of payload_length: %u\n",
+ payload_length);
+ return -ENOMEM;
+ }
+ cmd->text_in_ptr = text_in;
+
+ memcpy(cmd->text_in_ptr, &rx_desc->data[0], payload_length);
+
+ return iscsit_process_text_cmd(conn, cmd, hdr);
+}
+
+static int
isert_rx_opcode(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc,
uint32_t read_stag, uint64_t read_va,
uint32_t write_stag, uint64_t write_va)
{
struct iscsi_hdr *hdr = &rx_desc->iscsi_header;
struct iscsi_conn *conn = isert_conn->conn;
+ struct iscsi_session *sess = conn->sess;
struct iscsi_cmd *cmd;
struct isert_cmd *isert_cmd;
int ret = -EINVAL;
u8 opcode = (hdr->opcode & ISCSI_OPCODE_MASK);
+ if (sess->sess_ops->SessionType &&
+ (!(opcode & ISCSI_OP_TEXT) || !(opcode & ISCSI_OP_LOGOUT))) {
+ pr_err("Got illegal opcode: 0x%02x in SessionType=Discovery,"
+ " ignoring\n", opcode);
+ return 0;
+ }
+
switch (opcode) {
case ISCSI_OP_SCSI_CMD:
cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
@@ -1032,7 +1099,9 @@ isert_rx_opcode(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc,
if (!cmd)
break;
- ret = iscsit_handle_nop_out(conn, cmd, (unsigned char *)hdr);
+ isert_cmd = container_of(cmd, struct isert_cmd, iscsi_cmd);
+ ret = isert_handle_nop_out(isert_conn, isert_cmd,
+ rx_desc, (unsigned char *)hdr);
break;
case ISCSI_OP_SCSI_DATA_OUT:
ret = isert_handle_iscsi_dataout(isert_conn, rx_desc,
@@ -1057,6 +1126,15 @@ isert_rx_opcode(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc,
SECONDS_FOR_LOGOUT_COMP *
HZ);
break;
+ case ISCSI_OP_TEXT:
+ cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
+ if (!cmd)
+ break;
+
+ isert_cmd = container_of(cmd, struct isert_cmd, iscsi_cmd);
+ ret = isert_handle_text_cmd(isert_conn, isert_cmd,
+ rx_desc, (struct iscsi_text *)hdr);
+ break;
default:
pr_err("Got unknown iSCSI OpCode: 0x%02x\n", opcode);
dump_stack();
@@ -1184,14 +1262,12 @@ isert_put_cmd(struct isert_cmd *isert_cmd)
{
struct iscsi_cmd *cmd = &isert_cmd->iscsi_cmd;
struct isert_conn *isert_conn = isert_cmd->conn;
- struct iscsi_conn *conn;
+ struct iscsi_conn *conn = isert_conn->conn;
pr_debug("Entering isert_put_cmd: %p\n", isert_cmd);
switch (cmd->iscsi_opcode) {
case ISCSI_OP_SCSI_CMD:
- conn = isert_conn->conn;
-
spin_lock_bh(&conn->cmd_lock);
if (!list_empty(&cmd->i_conn_node))
list_del(&cmd->i_conn_node);
@@ -1201,16 +1277,19 @@ isert_put_cmd(struct isert_cmd *isert_cmd)
iscsit_stop_dataout_timer(cmd);
isert_unmap_cmd(isert_cmd, isert_conn);
- /*
- * Fall-through
- */
+ transport_generic_free_cmd(&cmd->se_cmd, 0);
+ break;
case ISCSI_OP_SCSI_TMFUNC:
+ spin_lock_bh(&conn->cmd_lock);
+ if (!list_empty(&cmd->i_conn_node))
+ list_del(&cmd->i_conn_node);
+ spin_unlock_bh(&conn->cmd_lock);
+
transport_generic_free_cmd(&cmd->se_cmd, 0);
break;
case ISCSI_OP_REJECT:
case ISCSI_OP_NOOP_OUT:
- conn = isert_conn->conn;
-
+ case ISCSI_OP_TEXT:
spin_lock_bh(&conn->cmd_lock);
if (!list_empty(&cmd->i_conn_node))
list_del(&cmd->i_conn_node);
@@ -1222,6 +1301,9 @@ isert_put_cmd(struct isert_cmd *isert_cmd)
* associated cmd->se_cmd needs to be released.
*/
if (cmd->se_cmd.se_tfo != NULL) {
+ pr_debug("Calling transport_generic_free_cmd from"
+ " isert_put_cmd for 0x%02x\n",
+ cmd->iscsi_opcode);
transport_generic_free_cmd(&cmd->se_cmd, 0);
break;
}
@@ -1249,11 +1331,11 @@ static void
isert_completion_put(struct iser_tx_desc *tx_desc, struct isert_cmd *isert_cmd,
struct ib_device *ib_dev)
{
- if (isert_cmd->sense_buf_dma != 0) {
- pr_debug("Calling ib_dma_unmap_single for isert_cmd->sense_buf_dma\n");
- ib_dma_unmap_single(ib_dev, isert_cmd->sense_buf_dma,
- isert_cmd->sense_buf_len, DMA_TO_DEVICE);
- isert_cmd->sense_buf_dma = 0;
+ if (isert_cmd->pdu_buf_dma != 0) {
+ pr_debug("Calling ib_dma_unmap_single for isert_cmd->pdu_buf_dma\n");
+ ib_dma_unmap_single(ib_dev, isert_cmd->pdu_buf_dma,
+ isert_cmd->pdu_buf_len, DMA_TO_DEVICE);
+ isert_cmd->pdu_buf_dma = 0;
}
isert_unmap_tx_desc(tx_desc, ib_dev);
@@ -1318,8 +1400,8 @@ isert_do_control_comp(struct work_struct *work)
atomic_dec(&isert_conn->post_send_buf_count);
cmd->i_state = ISTATE_SENT_STATUS;
- complete(&cmd->reject_comp);
isert_completion_put(&isert_cmd->tx_desc, isert_cmd, ib_dev);
+ break;
case ISTATE_SEND_LOGOUTRSP:
pr_debug("Calling iscsit_logout_post_handler >>>>>>>>>>>>>>\n");
/*
@@ -1329,6 +1411,11 @@ isert_do_control_comp(struct work_struct *work)
isert_conn->logout_posted = true;
iscsit_logout_post_handler(cmd, cmd->conn);
break;
+ case ISTATE_SEND_TEXTRSP:
+ atomic_dec(&isert_conn->post_send_buf_count);
+ cmd->i_state = ISTATE_SENT_STATUS;
+ isert_completion_put(&isert_cmd->tx_desc, isert_cmd, ib_dev);
+ break;
default:
pr_err("Unknown do_control_comp i_state %d\n", cmd->i_state);
dump_stack();
@@ -1345,7 +1432,9 @@ isert_response_completion(struct iser_tx_desc *tx_desc,
struct iscsi_cmd *cmd = &isert_cmd->iscsi_cmd;
if (cmd->i_state == ISTATE_SEND_TASKMGTRSP ||
- cmd->i_state == ISTATE_SEND_LOGOUTRSP) {
+ cmd->i_state == ISTATE_SEND_LOGOUTRSP ||
+ cmd->i_state == ISTATE_SEND_REJECT ||
+ cmd->i_state == ISTATE_SEND_TEXTRSP) {
isert_unmap_tx_desc(tx_desc, ib_dev);
INIT_WORK(&isert_cmd->comp_work, isert_do_control_comp);
@@ -1419,7 +1508,11 @@ isert_cq_comp_err(struct iser_tx_desc *tx_desc, struct isert_conn *isert_conn)
pr_debug("isert_cq_comp_err >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
pr_debug("Calling wake_up from isert_cq_comp_err\n");
- isert_conn->state = ISER_CONN_TERMINATING;
+ mutex_lock(&isert_conn->conn_mutex);
+ if (isert_conn->state != ISER_CONN_DOWN)
+ isert_conn->state = ISER_CONN_TERMINATING;
+ mutex_unlock(&isert_conn->conn_mutex);
+
wake_up(&isert_conn->conn_wait_comp_err);
}
}
@@ -1445,6 +1538,7 @@ isert_cq_tx_work(struct work_struct *work)
} else {
pr_debug("TX wc.status != IB_WC_SUCCESS >>>>>>>>>>>>>>\n");
pr_debug("TX wc.status: 0x%08x\n", wc.status);
+ pr_debug("TX wc.vendor_err: 0x%08x\n", wc.vendor_err);
atomic_dec(&isert_conn->post_send_buf_count);
isert_cq_comp_err(tx_desc, isert_conn);
}
@@ -1484,9 +1578,11 @@ isert_cq_rx_work(struct work_struct *work)
isert_rx_completion(rx_desc, isert_conn, xfer_len);
} else {
pr_debug("RX wc.status != IB_WC_SUCCESS >>>>>>>>>>>>>>\n");
- if (wc.status != IB_WC_WR_FLUSH_ERR)
+ if (wc.status != IB_WC_WR_FLUSH_ERR) {
pr_debug("RX wc.status: 0x%08x\n", wc.status);
-
+ pr_debug("RX wc.vendor_err: 0x%08x\n",
+ wc.vendor_err);
+ }
isert_conn->post_recv_buf_count--;
isert_cq_comp_err(NULL, isert_conn);
}
@@ -1543,7 +1639,7 @@ isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
(cmd->se_cmd.se_cmd_flags & SCF_EMULATED_TASK_SENSE))) {
struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1];
- u32 padding, sense_len;
+ u32 padding, pdu_len;
put_unaligned_be16(cmd->se_cmd.scsi_sense_length,
cmd->sense_buffer);
@@ -1551,15 +1647,15 @@ isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
padding = -(cmd->se_cmd.scsi_sense_length) & 3;
hton24(hdr->dlength, (u32)cmd->se_cmd.scsi_sense_length);
- sense_len = cmd->se_cmd.scsi_sense_length + padding;
+ pdu_len = cmd->se_cmd.scsi_sense_length + padding;
- isert_cmd->sense_buf_dma = ib_dma_map_single(ib_dev,
- (void *)cmd->sense_buffer, sense_len,
+ isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev,
+ (void *)cmd->sense_buffer, pdu_len,
DMA_TO_DEVICE);
- isert_cmd->sense_buf_len = sense_len;
- tx_dsg->addr = isert_cmd->sense_buf_dma;
- tx_dsg->length = sense_len;
+ isert_cmd->pdu_buf_len = pdu_len;
+ tx_dsg->addr = isert_cmd->pdu_buf_dma;
+ tx_dsg->length = pdu_len;
tx_dsg->lkey = isert_conn->conn_mr->lkey;
isert_cmd->tx_desc.num_sge = 2;
}
@@ -1637,11 +1733,25 @@ isert_put_reject(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
struct isert_cmd, iscsi_cmd);
struct isert_conn *isert_conn = (struct isert_conn *)conn->context;
struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr;
+ struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
+ struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1];
+ struct iscsi_reject *hdr =
+ (struct iscsi_reject *)&isert_cmd->tx_desc.iscsi_header;
isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
- iscsit_build_reject(cmd, conn, (struct iscsi_reject *)
- &isert_cmd->tx_desc.iscsi_header);
+ iscsit_build_reject(cmd, conn, hdr);
isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
+
+ hton24(hdr->dlength, ISCSI_HDR_LEN);
+ isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev,
+ (void *)cmd->buf_ptr, ISCSI_HDR_LEN,
+ DMA_TO_DEVICE);
+ isert_cmd->pdu_buf_len = ISCSI_HDR_LEN;
+ tx_dsg->addr = isert_cmd->pdu_buf_dma;
+ tx_dsg->length = ISCSI_HDR_LEN;
+ tx_dsg->lkey = isert_conn->conn_mr->lkey;
+ isert_cmd->tx_desc.num_sge = 2;
+
isert_init_send_wr(isert_cmd, send_wr);
pr_debug("Posting Reject IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n");
@@ -1650,6 +1760,47 @@ isert_put_reject(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
}
static int
+isert_put_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
+{
+ struct isert_cmd *isert_cmd = container_of(cmd,
+ struct isert_cmd, iscsi_cmd);
+ struct isert_conn *isert_conn = (struct isert_conn *)conn->context;
+ struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr;
+ struct iscsi_text_rsp *hdr =
+ (struct iscsi_text_rsp *)&isert_cmd->tx_desc.iscsi_header;
+ u32 txt_rsp_len;
+ int rc;
+
+ isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
+ rc = iscsit_build_text_rsp(cmd, conn, hdr);
+ if (rc < 0)
+ return rc;
+
+ txt_rsp_len = rc;
+ isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
+
+ if (txt_rsp_len) {
+ struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
+ struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1];
+ void *txt_rsp_buf = cmd->buf_ptr;
+
+ isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev,
+ txt_rsp_buf, txt_rsp_len, DMA_TO_DEVICE);
+
+ isert_cmd->pdu_buf_len = txt_rsp_len;
+ tx_dsg->addr = isert_cmd->pdu_buf_dma;
+ tx_dsg->length = txt_rsp_len;
+ tx_dsg->lkey = isert_conn->conn_mr->lkey;
+ isert_cmd->tx_desc.num_sge = 2;
+ }
+ isert_init_send_wr(isert_cmd, send_wr);
+
+ pr_debug("Posting Text Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n");
+
+ return isert_post_response(isert_conn, isert_cmd);
+}
+
+static int
isert_build_rdma_wr(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd,
struct ib_sge *ib_sge, struct ib_send_wr *send_wr,
u32 data_left, u32 offset)
@@ -1947,6 +2098,9 @@ isert_response_queue(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int state)
case ISTATE_SEND_REJECT:
ret = isert_put_reject(cmd, conn);
break;
+ case ISTATE_SEND_TEXTRSP:
+ ret = isert_put_text_rsp(cmd, conn);
+ break;
case ISTATE_SEND_STATUS:
/*
* Special case for sending non GOOD SCSI status from TX thread
@@ -2175,6 +2329,17 @@ isert_free_np(struct iscsi_np *np)
kfree(isert_np);
}
+static int isert_check_state(struct isert_conn *isert_conn, int state)
+{
+ int ret;
+
+ mutex_lock(&isert_conn->conn_mutex);
+ ret = (isert_conn->state == state);
+ mutex_unlock(&isert_conn->conn_mutex);
+
+ return ret;
+}
+
static void isert_free_conn(struct iscsi_conn *conn)
{
struct isert_conn *isert_conn = conn->context;
@@ -2184,26 +2349,43 @@ static void isert_free_conn(struct iscsi_conn *conn)
* Decrement post_send_buf_count for special case when called
* from isert_do_control_comp() -> iscsit_logout_post_handler()
*/
+ mutex_lock(&isert_conn->conn_mutex);
if (isert_conn->logout_posted)
atomic_dec(&isert_conn->post_send_buf_count);
- if (isert_conn->conn_cm_id)
+ if (isert_conn->conn_cm_id && isert_conn->state != ISER_CONN_DOWN) {
+ pr_debug("Calling rdma_disconnect from isert_free_conn\n");
rdma_disconnect(isert_conn->conn_cm_id);
+ }
/*
* Only wait for conn_wait_comp_err if the isert_conn made it
* into full feature phase..
*/
- if (isert_conn->state > ISER_CONN_INIT) {
+ if (isert_conn->state == ISER_CONN_UP) {
pr_debug("isert_free_conn: Before wait_event comp_err %d\n",
isert_conn->state);
+ mutex_unlock(&isert_conn->conn_mutex);
+
wait_event(isert_conn->conn_wait_comp_err,
- isert_conn->state == ISER_CONN_TERMINATING);
- pr_debug("isert_free_conn: After wait_event #1 >>>>>>>>>>>>\n");
+ (isert_check_state(isert_conn, ISER_CONN_TERMINATING)));
+
+ wait_event(isert_conn->conn_wait,
+ (isert_check_state(isert_conn, ISER_CONN_DOWN)));
+
+ isert_put_conn(isert_conn);
+ return;
+ }
+ if (isert_conn->state == ISER_CONN_INIT) {
+ mutex_unlock(&isert_conn->conn_mutex);
+ isert_put_conn(isert_conn);
+ return;
}
+ pr_debug("isert_free_conn: wait_event conn_wait %d\n",
+ isert_conn->state);
+ mutex_unlock(&isert_conn->conn_mutex);
- pr_debug("isert_free_conn: wait_event conn_wait %d\n", isert_conn->state);
- wait_event(isert_conn->conn_wait, isert_conn->state == ISER_CONN_DOWN);
- pr_debug("isert_free_conn: After wait_event #2 >>>>>>>>>>>>>>>>>>>>\n");
+ wait_event(isert_conn->conn_wait,
+ (isert_check_state(isert_conn, ISER_CONN_DOWN)));
isert_put_conn(isert_conn);
}
diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h
index b104f4c..191117b 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.h
+++ b/drivers/infiniband/ulp/isert/ib_isert.h
@@ -61,8 +61,8 @@ struct isert_cmd {
uint32_t write_stag;
uint64_t read_va;
uint64_t write_va;
- u64 sense_buf_dma;
- u32 sense_buf_len;
+ u64 pdu_buf_dma;
+ u32 pdu_buf_len;
u32 read_va_off;
u32 write_va_off;
u32 rdma_wr_num;
@@ -102,6 +102,7 @@ struct isert_conn {
struct ib_qp *conn_qp;
struct isert_device *conn_device;
struct work_struct conn_logout_work;
+ struct mutex conn_mutex;
wait_queue_head_t conn_wait;
wait_queue_head_t conn_wait_comp_err;
struct kref conn_kref;
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 3f3f041..653ac6b 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -3011,7 +3011,7 @@ static u8 tcm_to_srp_tsk_mgmt_status(const int tcm_mgmt_status)
* Callback function called by the TCM core. Must not block since it can be
* invoked on the context of the IB completion handler.
*/
-static int srpt_queue_response(struct se_cmd *cmd)
+static void srpt_queue_response(struct se_cmd *cmd)
{
struct srpt_rdma_ch *ch;
struct srpt_send_ioctx *ioctx;
@@ -3022,8 +3022,6 @@ static int srpt_queue_response(struct se_cmd *cmd)
int resp_len;
u8 srp_tm_status;
- ret = 0;
-
ioctx = container_of(cmd, struct srpt_send_ioctx, cmd);
ch = ioctx->ch;
BUG_ON(!ch);
@@ -3049,7 +3047,7 @@ static int srpt_queue_response(struct se_cmd *cmd)
|| WARN_ON_ONCE(state == SRPT_STATE_CMD_RSP_SENT))) {
atomic_inc(&ch->req_lim_delta);
srpt_abort_cmd(ioctx);
- goto out;
+ return;
}
dir = ioctx->cmd.data_direction;
@@ -3061,7 +3059,7 @@ static int srpt_queue_response(struct se_cmd *cmd)
if (ret) {
printk(KERN_ERR "xfer_data failed for tag %llu\n",
ioctx->tag);
- goto out;
+ return;
}
}
@@ -3082,9 +3080,17 @@ static int srpt_queue_response(struct se_cmd *cmd)
srpt_set_cmd_state(ioctx, SRPT_STATE_DONE);
target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
}
+}
-out:
- return ret;
+static int srpt_queue_data_in(struct se_cmd *cmd)
+{
+ srpt_queue_response(cmd);
+ return 0;
+}
+
+static void srpt_queue_tm_rsp(struct se_cmd *cmd)
+{
+ srpt_queue_response(cmd);
}
static int srpt_queue_status(struct se_cmd *cmd)
@@ -3097,7 +3103,8 @@ static int srpt_queue_status(struct se_cmd *cmd)
(SCF_TRANSPORT_TASK_SENSE | SCF_EMULATED_TASK_SENSE))
WARN_ON(cmd->scsi_status != SAM_STAT_CHECK_CONDITION);
ioctx->queue_status_only = true;
- return srpt_queue_response(cmd);
+ srpt_queue_response(cmd);
+ return 0;
}
static void srpt_refresh_port_work(struct work_struct *work)
@@ -3930,9 +3937,9 @@ static struct target_core_fabric_ops srpt_template = {
.set_default_node_attributes = srpt_set_default_node_attrs,
.get_task_tag = srpt_get_task_tag,
.get_cmd_state = srpt_get_tcm_cmd_state,
- .queue_data_in = srpt_queue_response,
+ .queue_data_in = srpt_queue_data_in,
.queue_status = srpt_queue_status,
- .queue_tm_rsp = srpt_queue_response,
+ .queue_tm_rsp = srpt_queue_tm_rsp,
/*
* Setup function pointers for generic logic in
* target_core_fabric_configfs.c
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index fcdc223..83a8f7a 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -544,102 +544,6 @@ out_free_id_list:
return res;
}
-static bool qlt_check_fcport_exist(struct scsi_qla_host *vha,
- struct qla_tgt_sess *sess)
-{
- struct qla_hw_data *ha = vha->hw;
- struct qla_port_24xx_data *pmap24;
- bool res, found = false;
- int rc, i;
- uint16_t loop_id = 0xFFFF; /* to eliminate compiler's warning */
- uint16_t entries;
- void *pmap;
- int pmap_len;
- fc_port_t *fcport;
- int global_resets;
- unsigned long flags;
-
-retry:
- global_resets = atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count);
-
- rc = qla2x00_get_node_name_list(vha, &pmap, &pmap_len);
- if (rc != QLA_SUCCESS) {
- res = false;
- goto out;
- }
-
- pmap24 = pmap;
- entries = pmap_len/sizeof(*pmap24);
-
- for (i = 0; i < entries; ++i) {
- if (!memcmp(sess->port_name, pmap24[i].port_name, WWN_SIZE)) {
- loop_id = le16_to_cpu(pmap24[i].loop_id);
- found = true;
- break;
- }
- }
-
- kfree(pmap);
-
- if (!found) {
- res = false;
- goto out;
- }
-
- ql_dbg(ql_dbg_tgt_mgt, vha, 0xf046,
- "qlt_check_fcport_exist(): loop_id %d", loop_id);
-
- fcport = kzalloc(sizeof(*fcport), GFP_KERNEL);
- if (fcport == NULL) {
- ql_dbg(ql_dbg_tgt_mgt, vha, 0xf047,
- "qla_target(%d): Allocation of tmp FC port failed",
- vha->vp_idx);
- res = false;
- goto out;
- }
-
- fcport->loop_id = loop_id;
-
- rc = qla2x00_get_port_database(vha, fcport, 0);
- if (rc != QLA_SUCCESS) {
- ql_dbg(ql_dbg_tgt_mgt, vha, 0xf048,
- "qla_target(%d): Failed to retrieve fcport "
- "information -- get_port_database() returned %x "
- "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id);
- res = false;
- goto out_free_fcport;
- }
-
- if (global_resets !=
- atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count)) {
- ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002,
- "qla_target(%d): global reset during session discovery"
- " (counter was %d, new %d), retrying",
- vha->vp_idx, global_resets,
- atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count));
- goto retry;
- }
-
- ql_dbg(ql_dbg_tgt_mgt, vha, 0xf003,
- "Updating sess %p s_id %x:%x:%x, loop_id %d) to d_id %x:%x:%x, "
- "loop_id %d", sess, sess->s_id.b.domain, sess->s_id.b.al_pa,
- sess->s_id.b.area, sess->loop_id, fcport->d_id.b.domain,
- fcport->d_id.b.al_pa, fcport->d_id.b.area, fcport->loop_id);
-
- spin_lock_irqsave(&ha->hardware_lock, flags);
- ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, fcport->loop_id,
- (fcport->flags & FCF_CONF_COMP_SUPPORTED));
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
-
- res = true;
-
-out_free_fcport:
- kfree(fcport);
-
-out:
- return res;
-}
-
/* ha->hardware_lock supposed to be held on entry */
static void qlt_undelete_sess(struct qla_tgt_sess *sess)
{
@@ -663,43 +567,13 @@ static void qlt_del_sess_work_fn(struct delayed_work *work)
sess = list_entry(tgt->del_sess_list.next, typeof(*sess),
del_list_entry);
if (time_after_eq(jiffies, sess->expires)) {
- bool cancel;
-
qlt_undelete_sess(sess);
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
- cancel = qlt_check_fcport_exist(vha, sess);
-
- if (cancel) {
- if (sess->deleted) {
- /*
- * sess was again deleted while we were
- * discovering it
- */
- spin_lock_irqsave(&ha->hardware_lock,
- flags);
- continue;
- }
-
- ql_dbg(ql_dbg_tgt_mgt, vha, 0xf049,
- "qla_target(%d): cancel deletion of "
- "session for port %02x:%02x:%02x:%02x:%02x:"
- "%02x:%02x:%02x (loop ID %d), because "
- " it isn't deleted by firmware",
- vha->vp_idx, sess->port_name[0],
- sess->port_name[1], sess->port_name[2],
- sess->port_name[3], sess->port_name[4],
- sess->port_name[5], sess->port_name[6],
- sess->port_name[7], sess->loop_id);
- } else {
- ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
- "Timeout: sess %p about to be deleted\n",
- sess);
- ha->tgt.tgt_ops->shutdown_sess(sess);
- ha->tgt.tgt_ops->put_sess(sess);
- }
-
- spin_lock_irqsave(&ha->hardware_lock, flags);
+ ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
+ "Timeout: sess %p about to be deleted\n",
+ sess);
+ ha->tgt.tgt_ops->shutdown_sess(sess);
+ ha->tgt.tgt_ops->put_sess(sess);
} else {
schedule_delayed_work(&tgt->sess_del_work,
jiffies - sess->expires);
@@ -884,9 +758,8 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
sess->loop_id);
sess->local = 0;
}
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
-
ha->tgt.tgt_ops->put_sess(sess);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
void qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport)
@@ -2706,7 +2579,9 @@ static void qlt_do_work(struct work_struct *work)
/*
* Drop extra session reference from qla_tgt_handle_cmd_for_atio*(
*/
+ spin_lock_irqsave(&ha->hardware_lock, flags);
ha->tgt.tgt_ops->put_sess(sess);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
return;
out_term:
@@ -2718,9 +2593,9 @@ out_term:
spin_lock_irqsave(&ha->hardware_lock, flags);
qlt_send_term_exchange(vha, NULL, &cmd->atio, 1);
kmem_cache_free(qla_tgt_cmd_cachep, cmd);
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (sess)
ha->tgt.tgt_ops->put_sess(sess);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
/* ha->hardware_lock supposed to be held on entry */
@@ -4169,16 +4044,16 @@ static void qlt_abort_work(struct qla_tgt *tgt,
rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess);
if (rc != 0)
goto out_term;
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
ha->tgt.tgt_ops->put_sess(sess);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
return;
out_term:
qlt_24xx_send_abts_resp(vha, &prm->abts, FCP_TMF_REJECTED, false);
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (sess)
ha->tgt.tgt_ops->put_sess(sess);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static void qlt_tmr_work(struct qla_tgt *tgt,
@@ -4226,16 +4101,16 @@ static void qlt_tmr_work(struct qla_tgt *tgt,
rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
if (rc != 0)
goto out_term;
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
ha->tgt.tgt_ops->put_sess(sess);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
return;
out_term:
qlt_send_term_exchange(vha, NULL, &prm->tm_iocb2, 1);
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (sess)
ha->tgt.tgt_ops->put_sess(sess);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static void qlt_sess_work_fn(struct work_struct *work)
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index 66b0b26..a318092 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -703,7 +703,7 @@ static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
}
-static int tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
+static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
{
struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
@@ -735,8 +735,6 @@ static int tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
* CTIO response packet.
*/
qlt_xmit_tm_rsp(mcmd);
-
- return 0;
}
/* Local pointer to allocated TCM configfs fabric module */
@@ -799,12 +797,14 @@ static void tcm_qla2xxx_put_session(struct se_session *se_sess)
static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess)
{
- tcm_qla2xxx_put_session(sess->se_sess);
+ assert_spin_locked(&sess->vha->hw->hardware_lock);
+ kref_put(&sess->se_sess->sess_kref, tcm_qla2xxx_release_session);
}
static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess)
{
- tcm_qla2xxx_shutdown_session(sess->se_sess);
+ assert_spin_locked(&sess->vha->hw->hardware_lock);
+ target_sess_cmd_list_set_waiting(sess->se_sess);
}
static struct se_node_acl *tcm_qla2xxx_make_nodeacl(
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index d7705e5..f73da43 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -628,25 +628,18 @@ static void __exit iscsi_target_cleanup_module(void)
}
static int iscsit_add_reject(
+ struct iscsi_conn *conn,
u8 reason,
- int fail_conn,
- unsigned char *buf,
- struct iscsi_conn *conn)
+ unsigned char *buf)
{
struct iscsi_cmd *cmd;
- struct iscsi_reject *hdr;
- int ret;
cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
if (!cmd)
return -1;
cmd->iscsi_opcode = ISCSI_OP_REJECT;
- if (fail_conn)
- cmd->cmd_flags |= ICF_REJECT_FAIL_CONN;
-
- hdr = (struct iscsi_reject *) cmd->pdu;
- hdr->reason = reason;
+ cmd->reject_reason = reason;
cmd->buf_ptr = kmemdup(buf, ISCSI_HDR_LEN, GFP_KERNEL);
if (!cmd->buf_ptr) {
@@ -662,23 +655,16 @@ static int iscsit_add_reject(
cmd->i_state = ISTATE_SEND_REJECT;
iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
- ret = wait_for_completion_interruptible(&cmd->reject_comp);
- if (ret != 0)
- return -1;
-
- return (!fail_conn) ? 0 : -1;
+ return -1;
}
-int iscsit_add_reject_from_cmd(
+static int iscsit_add_reject_from_cmd(
+ struct iscsi_cmd *cmd,
u8 reason,
- int fail_conn,
- int add_to_conn,
- unsigned char *buf,
- struct iscsi_cmd *cmd)
+ bool add_to_conn,
+ unsigned char *buf)
{
struct iscsi_conn *conn;
- struct iscsi_reject *hdr;
- int ret;
if (!cmd->conn) {
pr_err("cmd->conn is NULL for ITT: 0x%08x\n",
@@ -688,11 +674,7 @@ int iscsit_add_reject_from_cmd(
conn = cmd->conn;
cmd->iscsi_opcode = ISCSI_OP_REJECT;
- if (fail_conn)
- cmd->cmd_flags |= ICF_REJECT_FAIL_CONN;
-
- hdr = (struct iscsi_reject *) cmd->pdu;
- hdr->reason = reason;
+ cmd->reject_reason = reason;
cmd->buf_ptr = kmemdup(buf, ISCSI_HDR_LEN, GFP_KERNEL);
if (!cmd->buf_ptr) {
@@ -709,8 +691,6 @@ int iscsit_add_reject_from_cmd(
cmd->i_state = ISTATE_SEND_REJECT;
iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
-
- ret = wait_for_completion_interruptible(&cmd->reject_comp);
/*
* Perform the kref_put now if se_cmd has already been setup by
* scsit_setup_scsi_cmd()
@@ -719,12 +699,19 @@ int iscsit_add_reject_from_cmd(
pr_debug("iscsi reject: calling target_put_sess_cmd >>>>>>\n");
target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
}
- if (ret != 0)
- return -1;
+ return -1;
+}
- return (!fail_conn) ? 0 : -1;
+static int iscsit_add_reject_cmd(struct iscsi_cmd *cmd, u8 reason,
+ unsigned char *buf)
+{
+ return iscsit_add_reject_from_cmd(cmd, reason, true, buf);
+}
+
+int iscsit_reject_cmd(struct iscsi_cmd *cmd, u8 reason, unsigned char *buf)
+{
+ return iscsit_add_reject_from_cmd(cmd, reason, false, buf);
}
-EXPORT_SYMBOL(iscsit_add_reject_from_cmd);
/*
* Map some portion of the allocated scatterlist to an iovec, suitable for
@@ -844,8 +831,8 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
!(hdr->flags & ISCSI_FLAG_CMD_FINAL)) {
pr_err("ISCSI_FLAG_CMD_WRITE & ISCSI_FLAG_CMD_FINAL"
" not set. Bad iSCSI Initiator.\n");
- return iscsit_add_reject_from_cmd(ISCSI_REASON_BOOKMARK_INVALID,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_INVALID, buf);
}
if (((hdr->flags & ISCSI_FLAG_CMD_READ) ||
@@ -865,8 +852,8 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
pr_err("ISCSI_FLAG_CMD_READ or ISCSI_FLAG_CMD_WRITE"
" set when Expected Data Transfer Length is 0 for"
" CDB: 0x%02x. Bad iSCSI Initiator.\n", hdr->cdb[0]);
- return iscsit_add_reject_from_cmd(ISCSI_REASON_BOOKMARK_INVALID,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_INVALID, buf);
}
done:
@@ -875,62 +862,62 @@ done:
pr_err("ISCSI_FLAG_CMD_READ and/or ISCSI_FLAG_CMD_WRITE"
" MUST be set if Expected Data Transfer Length is not 0."
" Bad iSCSI Initiator\n");
- return iscsit_add_reject_from_cmd(ISCSI_REASON_BOOKMARK_INVALID,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_INVALID, buf);
}
if ((hdr->flags & ISCSI_FLAG_CMD_READ) &&
(hdr->flags & ISCSI_FLAG_CMD_WRITE)) {
pr_err("Bidirectional operations not supported!\n");
- return iscsit_add_reject_from_cmd(ISCSI_REASON_BOOKMARK_INVALID,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_INVALID, buf);
}
if (hdr->opcode & ISCSI_OP_IMMEDIATE) {
pr_err("Illegally set Immediate Bit in iSCSI Initiator"
" Scsi Command PDU.\n");
- return iscsit_add_reject_from_cmd(ISCSI_REASON_BOOKMARK_INVALID,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_INVALID, buf);
}
if (payload_length && !conn->sess->sess_ops->ImmediateData) {
pr_err("ImmediateData=No but DataSegmentLength=%u,"
" protocol error.\n", payload_length);
- return iscsit_add_reject_from_cmd(ISCSI_REASON_PROTOCOL_ERROR,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_PROTOCOL_ERROR, buf);
}
- if ((be32_to_cpu(hdr->data_length )== payload_length) &&
+ if ((be32_to_cpu(hdr->data_length) == payload_length) &&
(!(hdr->flags & ISCSI_FLAG_CMD_FINAL))) {
pr_err("Expected Data Transfer Length and Length of"
" Immediate Data are the same, but ISCSI_FLAG_CMD_FINAL"
" bit is not set protocol error\n");
- return iscsit_add_reject_from_cmd(ISCSI_REASON_PROTOCOL_ERROR,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_PROTOCOL_ERROR, buf);
}
if (payload_length > be32_to_cpu(hdr->data_length)) {
pr_err("DataSegmentLength: %u is greater than"
" EDTL: %u, protocol error.\n", payload_length,
hdr->data_length);
- return iscsit_add_reject_from_cmd(ISCSI_REASON_PROTOCOL_ERROR,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_PROTOCOL_ERROR, buf);
}
if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
pr_err("DataSegmentLength: %u is greater than"
" MaxXmitDataSegmentLength: %u, protocol error.\n",
payload_length, conn->conn_ops->MaxXmitDataSegmentLength);
- return iscsit_add_reject_from_cmd(ISCSI_REASON_PROTOCOL_ERROR,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_PROTOCOL_ERROR, buf);
}
if (payload_length > conn->sess->sess_ops->FirstBurstLength) {
pr_err("DataSegmentLength: %u is greater than"
" FirstBurstLength: %u, protocol error.\n",
payload_length, conn->sess->sess_ops->FirstBurstLength);
- return iscsit_add_reject_from_cmd(ISCSI_REASON_BOOKMARK_INVALID,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_INVALID, buf);
}
data_direction = (hdr->flags & ISCSI_FLAG_CMD_WRITE) ? DMA_TO_DEVICE :
@@ -985,9 +972,8 @@ done:
dr = iscsit_allocate_datain_req();
if (!dr)
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
iscsit_attach_datain_req(cmd, dr);
}
@@ -1015,18 +1001,16 @@ done:
cmd->sense_reason = target_setup_cmd_from_cdb(&cmd->se_cmd, hdr->cdb);
if (cmd->sense_reason) {
if (cmd->sense_reason == TCM_OUT_OF_RESOURCES) {
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
}
goto attach_cmd;
}
if (iscsit_build_pdu_and_seq_lists(cmd, payload_length) < 0) {
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
}
attach_cmd:
@@ -1068,17 +1052,13 @@ int iscsit_process_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
* be acknowledged. (See below)
*/
if (!cmd->immediate_data) {
- cmdsn_ret = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
- if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
- if (!cmd->sense_reason)
- return 0;
-
+ cmdsn_ret = iscsit_sequence_cmd(conn, cmd,
+ (unsigned char *)hdr, hdr->cmdsn);
+ if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
+ return -1;
+ else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
return 0;
- } else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER) {
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_PROTOCOL_ERROR,
- 1, 0, (unsigned char *)hdr, cmd);
}
}
@@ -1103,6 +1083,9 @@ int iscsit_process_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
* iscsit_check_received_cmdsn() in iscsit_get_immediate_data() below.
*/
if (cmd->sense_reason) {
+ if (cmd->reject_reason)
+ return 0;
+
target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
return 1;
}
@@ -1111,10 +1094,8 @@ int iscsit_process_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
* the backend memory allocation.
*/
cmd->sense_reason = transport_generic_new_cmd(&cmd->se_cmd);
- if (cmd->sense_reason) {
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ if (cmd->sense_reason)
return 1;
- }
return 0;
}
@@ -1124,6 +1105,7 @@ static int
iscsit_get_immediate_data(struct iscsi_cmd *cmd, struct iscsi_scsi_req *hdr,
bool dump_payload)
{
+ struct iscsi_conn *conn = cmd->conn;
int cmdsn_ret = 0, immed_ret = IMMEDIATE_DATA_NORMAL_OPERATION;
/*
* Special case for Unsupported SAM WRITE Opcodes and ImmediateData=Yes.
@@ -1140,20 +1122,25 @@ after_immediate_data:
* DataCRC, check against ExpCmdSN/MaxCmdSN if
* Immediate Bit is not set.
*/
- cmdsn_ret = iscsit_sequence_cmd(cmd->conn, cmd, hdr->cmdsn);
+ cmdsn_ret = iscsit_sequence_cmd(cmd->conn, cmd,
+ (unsigned char *)hdr, hdr->cmdsn);
+ if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER) {
+ return -1;
+ } else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
+ target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ return 0;
+ }
if (cmd->sense_reason) {
- if (iscsit_dump_data_payload(cmd->conn,
- cmd->first_burst_len, 1) < 0)
- return -1;
+ int rc;
+
+ rc = iscsit_dump_data_payload(cmd->conn,
+ cmd->first_burst_len, 1);
+ target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ return rc;
} else if (cmd->unsolicited_data)
iscsit_set_unsoliticed_dataout(cmd);
- if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_PROTOCOL_ERROR,
- 1, 0, (unsigned char *)hdr, cmd);
-
} else if (immed_ret == IMMEDIATE_DATA_ERL1_CRC_FAILURE) {
/*
* Immediate Data failed DataCRC and ERL>=1,
@@ -1184,15 +1171,14 @@ iscsit_handle_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
rc = iscsit_setup_scsi_cmd(conn, cmd, buf);
if (rc < 0)
- return rc;
+ return 0;
/*
* Allocation iovecs needed for struct socket operations for
* traditional iSCSI block I/O.
*/
if (iscsit_allocate_iovecs(cmd) < 0) {
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, 0, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
}
immed_data = cmd->immediate_data;
@@ -1277,14 +1263,13 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf,
struct iscsi_data *hdr = (struct iscsi_data *)buf;
struct iscsi_cmd *cmd = NULL;
struct se_cmd *se_cmd;
- unsigned long flags;
u32 payload_length = ntoh24(hdr->dlength);
int rc;
if (!payload_length) {
pr_err("DataOUT payload is ZERO, protocol error.\n");
- return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
- buf, conn);
+ return iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR,
+ buf);
}
/* iSCSI write */
@@ -1301,8 +1286,8 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf,
pr_err("DataSegmentLength: %u is greater than"
" MaxXmitDataSegmentLength: %u\n", payload_length,
conn->conn_ops->MaxXmitDataSegmentLength);
- return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
- buf, conn);
+ return iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR,
+ buf);
}
cmd = iscsit_find_cmd_from_itt_or_dump(conn, hdr->itt,
@@ -1325,8 +1310,7 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf,
if (cmd->data_direction != DMA_TO_DEVICE) {
pr_err("Command ITT: 0x%08x received DataOUT for a"
" NON-WRITE command.\n", cmd->init_task_tag);
- return iscsit_add_reject_from_cmd(ISCSI_REASON_PROTOCOL_ERROR,
- 1, 0, buf, cmd);
+ return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR, buf);
}
se_cmd = &cmd->se_cmd;
iscsit_mod_dataout_timer(cmd);
@@ -1335,8 +1319,7 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf,
pr_err("DataOut Offset: %u, Length %u greater than"
" iSCSI Command EDTL %u, protocol error.\n",
hdr->offset, payload_length, cmd->se_cmd.data_length);
- return iscsit_add_reject_from_cmd(ISCSI_REASON_BOOKMARK_INVALID,
- 1, 0, buf, cmd);
+ return iscsit_reject_cmd(cmd, ISCSI_REASON_BOOKMARK_INVALID, buf);
}
if (cmd->unsolicited_data) {
@@ -1356,14 +1339,9 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf,
*/
/* Something's amiss if we're not in WRITE_PENDING state... */
- spin_lock_irqsave(&se_cmd->t_state_lock, flags);
WARN_ON(se_cmd->t_state != TRANSPORT_WRITE_PENDING);
- spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
-
- spin_lock_irqsave(&se_cmd->t_state_lock, flags);
if (!(se_cmd->se_cmd_flags & SCF_SUPPORTED_SAM_OPCODE))
dump_unsolicited_data = 1;
- spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
if (dump_unsolicited_data) {
/*
@@ -1528,7 +1506,7 @@ static int iscsit_handle_data_out(struct iscsi_conn *conn, unsigned char *buf)
rc = iscsit_check_dataout_hdr(conn, buf, &cmd);
if (rc < 0)
- return rc;
+ return 0;
else if (!cmd)
return 0;
@@ -1541,24 +1519,16 @@ static int iscsit_handle_data_out(struct iscsi_conn *conn, unsigned char *buf)
return iscsit_check_dataout_payload(cmd, hdr, data_crc_failed);
}
-int iscsit_handle_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
- unsigned char *buf)
+int iscsit_setup_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
+ struct iscsi_nopout *hdr)
{
- unsigned char *ping_data = NULL;
- int cmdsn_ret, niov = 0, ret = 0, rx_got, rx_size;
- u32 checksum, data_crc, padding = 0, payload_length;
- struct iscsi_cmd *cmd_p = NULL;
- struct kvec *iov = NULL;
- struct iscsi_nopout *hdr;
-
- hdr = (struct iscsi_nopout *) buf;
- payload_length = ntoh24(hdr->dlength);
+ u32 payload_length = ntoh24(hdr->dlength);
if (hdr->itt == RESERVED_ITT && !(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
pr_err("NOPOUT ITT is reserved, but Immediate Bit is"
" not set, protocol error.\n");
- return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
- buf, conn);
+ return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR,
+ (unsigned char *)hdr);
}
if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
@@ -1566,8 +1536,8 @@ int iscsit_handle_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
" greater than MaxXmitDataSegmentLength: %u, protocol"
" error.\n", payload_length,
conn->conn_ops->MaxXmitDataSegmentLength);
- return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
- buf, conn);
+ return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR,
+ (unsigned char *)hdr);
}
pr_debug("Got NOPOUT Ping %s ITT: 0x%08x, TTT: 0x%08x,"
@@ -1583,11 +1553,6 @@ int iscsit_handle_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
* can contain ping data.
*/
if (hdr->ttt == cpu_to_be32(0xFFFFFFFF)) {
- if (!cmd)
- return iscsit_add_reject(
- ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, buf, conn);
-
cmd->iscsi_opcode = ISCSI_OP_NOOP_OUT;
cmd->i_state = ISTATE_SEND_NOPIN;
cmd->immediate_cmd = ((hdr->opcode & ISCSI_OP_IMMEDIATE) ?
@@ -1599,8 +1564,85 @@ int iscsit_handle_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
cmd->data_direction = DMA_NONE;
}
+ return 0;
+}
+EXPORT_SYMBOL(iscsit_setup_nop_out);
+
+int iscsit_process_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
+ struct iscsi_nopout *hdr)
+{
+ struct iscsi_cmd *cmd_p = NULL;
+ int cmdsn_ret = 0;
+ /*
+ * Initiator is expecting a NopIN ping reply..
+ */
+ if (hdr->itt != RESERVED_ITT) {
+ BUG_ON(!cmd);
+
+ spin_lock_bh(&conn->cmd_lock);
+ list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list);
+ spin_unlock_bh(&conn->cmd_lock);
+
+ iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
+
+ if (hdr->opcode & ISCSI_OP_IMMEDIATE) {
+ iscsit_add_cmd_to_response_queue(cmd, conn,
+ cmd->i_state);
+ return 0;
+ }
+
+ cmdsn_ret = iscsit_sequence_cmd(conn, cmd,
+ (unsigned char *)hdr, hdr->cmdsn);
+ if (cmdsn_ret == CMDSN_LOWER_THAN_EXP)
+ return 0;
+ if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
+ return -1;
+
+ return 0;
+ }
+ /*
+ * This was a response to a unsolicited NOPIN ping.
+ */
+ if (hdr->ttt != cpu_to_be32(0xFFFFFFFF)) {
+ cmd_p = iscsit_find_cmd_from_ttt(conn, be32_to_cpu(hdr->ttt));
+ if (!cmd_p)
+ return -EINVAL;
+
+ iscsit_stop_nopin_response_timer(conn);
+
+ cmd_p->i_state = ISTATE_REMOVE;
+ iscsit_add_cmd_to_immediate_queue(cmd_p, conn, cmd_p->i_state);
+
+ iscsit_start_nopin_timer(conn);
+ return 0;
+ }
+ /*
+ * Otherwise, initiator is not expecting a NOPIN is response.
+ * Just ignore for now.
+ */
+ return 0;
+}
+EXPORT_SYMBOL(iscsit_process_nop_out);
+
+static int iscsit_handle_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
+ unsigned char *buf)
+{
+ unsigned char *ping_data = NULL;
+ struct iscsi_nopout *hdr = (struct iscsi_nopout *)buf;
+ struct kvec *iov = NULL;
+ u32 payload_length = ntoh24(hdr->dlength);
+ int ret;
+
+ ret = iscsit_setup_nop_out(conn, cmd, hdr);
+ if (ret < 0)
+ return 0;
+ /*
+ * Handle NOP-OUT payload for traditional iSCSI sockets
+ */
if (payload_length && hdr->ttt == cpu_to_be32(0xFFFFFFFF)) {
- rx_size = payload_length;
+ u32 checksum, data_crc, padding = 0;
+ int niov = 0, rx_got, rx_size = payload_length;
+
ping_data = kzalloc(payload_length + 1, GFP_KERNEL);
if (!ping_data) {
pr_err("Unable to allocate memory for"
@@ -1679,76 +1721,14 @@ int iscsit_handle_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
pr_debug("Ping Data: \"%s\"\n", ping_data);
}
- if (hdr->itt != RESERVED_ITT) {
- if (!cmd) {
- pr_err("Checking CmdSN for NOPOUT,"
- " but cmd is NULL!\n");
- return -1;
- }
- /*
- * Initiator is expecting a NopIN ping reply,
- */
- spin_lock_bh(&conn->cmd_lock);
- list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list);
- spin_unlock_bh(&conn->cmd_lock);
-
- iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
-
- if (hdr->opcode & ISCSI_OP_IMMEDIATE) {
- iscsit_add_cmd_to_response_queue(cmd, conn,
- cmd->i_state);
- return 0;
- }
-
- cmdsn_ret = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
- if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
- ret = 0;
- goto ping_out;
- }
- if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_PROTOCOL_ERROR,
- 1, 0, buf, cmd);
-
- return 0;
- }
-
- if (hdr->ttt != cpu_to_be32(0xFFFFFFFF)) {
- /*
- * This was a response to a unsolicited NOPIN ping.
- */
- cmd_p = iscsit_find_cmd_from_ttt(conn, be32_to_cpu(hdr->ttt));
- if (!cmd_p)
- return -1;
-
- iscsit_stop_nopin_response_timer(conn);
-
- cmd_p->i_state = ISTATE_REMOVE;
- iscsit_add_cmd_to_immediate_queue(cmd_p, conn, cmd_p->i_state);
- iscsit_start_nopin_timer(conn);
- } else {
- /*
- * Initiator is not expecting a NOPIN is response.
- * Just ignore for now.
- *
- * iSCSI v19-91 10.18
- * "A NOP-OUT may also be used to confirm a changed
- * ExpStatSN if another PDU will not be available
- * for a long time."
- */
- ret = 0;
- goto out;
- }
-
- return 0;
+ return iscsit_process_nop_out(conn, cmd, hdr);
out:
if (cmd)
iscsit_free_cmd(cmd, false);
-ping_out:
+
kfree(ping_data);
return ret;
}
-EXPORT_SYMBOL(iscsit_handle_nop_out);
int
iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
@@ -1757,8 +1737,8 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
struct se_tmr_req *se_tmr;
struct iscsi_tmr_req *tmr_req;
struct iscsi_tm *hdr;
- int out_of_order_cmdsn = 0;
- int ret;
+ int out_of_order_cmdsn = 0, ret;
+ bool sess_ref = false;
u8 function;
hdr = (struct iscsi_tm *) buf;
@@ -1782,8 +1762,8 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
pr_err("Task Management Request TASK_REASSIGN not"
" issued as immediate command, bad iSCSI Initiator"
"implementation\n");
- return iscsit_add_reject_from_cmd(ISCSI_REASON_PROTOCOL_ERROR,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_PROTOCOL_ERROR, buf);
}
if ((function != ISCSI_TM_FUNC_ABORT_TASK) &&
be32_to_cpu(hdr->refcmdsn) != ISCSI_RESERVED_TAG)
@@ -1795,9 +1775,9 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
if (!cmd->tmr_req) {
pr_err("Unable to allocate memory for"
" Task Management command!\n");
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_NO_RESOURCES,
+ buf);
}
/*
@@ -1814,6 +1794,9 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
conn->sess->se_sess, 0, DMA_NONE,
MSG_SIMPLE_TAG, cmd->sense_buffer + 2);
+ target_get_sess_cmd(conn->sess->se_sess, &cmd->se_cmd, true);
+ sess_ref = true;
+
switch (function) {
case ISCSI_TM_FUNC_ABORT_TASK:
tcm_function = TMR_ABORT_TASK;
@@ -1839,17 +1822,15 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
default:
pr_err("Unknown iSCSI TMR Function:"
" 0x%02x\n", function);
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
}
ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req,
tcm_function, GFP_KERNEL);
if (ret < 0)
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, 1, buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req;
}
@@ -1908,9 +1889,8 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
break;
if (iscsit_check_task_reassign_expdatasn(tmr_req, conn) < 0)
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_BOOKMARK_INVALID, 1, 1,
- buf, cmd);
+ return iscsit_add_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_INVALID, buf);
break;
default:
pr_err("Unknown TMR function: 0x%02x, protocol"
@@ -1928,15 +1908,13 @@ attach:
spin_unlock_bh(&conn->cmd_lock);
if (!(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
- int cmdsn_ret = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
+ int cmdsn_ret = iscsit_sequence_cmd(conn, cmd, buf, hdr->cmdsn);
if (cmdsn_ret == CMDSN_HIGHER_THAN_EXP)
out_of_order_cmdsn = 1;
else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP)
return 0;
else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_PROTOCOL_ERROR,
- 1, 0, buf, cmd);
+ return -1;
}
iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
@@ -1956,51 +1934,135 @@ attach:
* For connection recovery, this is also the default action for
* TMR TASK_REASSIGN.
*/
+ if (sess_ref) {
+ pr_debug("Handle TMR, using sess_ref=true check\n");
+ target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ }
+
iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
return 0;
}
EXPORT_SYMBOL(iscsit_handle_task_mgt_cmd);
/* #warning FIXME: Support Text Command parameters besides SendTargets */
-static int iscsit_handle_text_cmd(
- struct iscsi_conn *conn,
- unsigned char *buf)
+int
+iscsit_setup_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
+ struct iscsi_text *hdr)
{
- char *text_ptr, *text_in;
- int cmdsn_ret, niov = 0, rx_got, rx_size;
- u32 checksum = 0, data_crc = 0, payload_length;
- u32 padding = 0, pad_bytes = 0, text_length = 0;
- struct iscsi_cmd *cmd;
- struct kvec iov[3];
- struct iscsi_text *hdr;
-
- hdr = (struct iscsi_text *) buf;
- payload_length = ntoh24(hdr->dlength);
+ u32 payload_length = ntoh24(hdr->dlength);
if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
pr_err("Unable to accept text parameter length: %u"
"greater than MaxXmitDataSegmentLength %u.\n",
payload_length, conn->conn_ops->MaxXmitDataSegmentLength);
- return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
- buf, conn);
+ return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR,
+ (unsigned char *)hdr);
}
pr_debug("Got Text Request: ITT: 0x%08x, CmdSN: 0x%08x,"
" ExpStatSN: 0x%08x, Length: %u\n", hdr->itt, hdr->cmdsn,
hdr->exp_statsn, payload_length);
- rx_size = text_length = payload_length;
- if (text_length) {
- text_in = kzalloc(text_length, GFP_KERNEL);
+ cmd->iscsi_opcode = ISCSI_OP_TEXT;
+ cmd->i_state = ISTATE_SEND_TEXTRSP;
+ cmd->immediate_cmd = ((hdr->opcode & ISCSI_OP_IMMEDIATE) ? 1 : 0);
+ conn->sess->init_task_tag = cmd->init_task_tag = hdr->itt;
+ cmd->targ_xfer_tag = 0xFFFFFFFF;
+ cmd->cmd_sn = be32_to_cpu(hdr->cmdsn);
+ cmd->exp_stat_sn = be32_to_cpu(hdr->exp_statsn);
+ cmd->data_direction = DMA_NONE;
+
+ return 0;
+}
+EXPORT_SYMBOL(iscsit_setup_text_cmd);
+
+int
+iscsit_process_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
+ struct iscsi_text *hdr)
+{
+ unsigned char *text_in = cmd->text_in_ptr, *text_ptr;
+ int cmdsn_ret;
+
+ if (!text_in) {
+ pr_err("Unable to locate text_in buffer for sendtargets"
+ " discovery\n");
+ goto reject;
+ }
+ if (strncmp("SendTargets", text_in, 11) != 0) {
+ pr_err("Received Text Data that is not"
+ " SendTargets, cannot continue.\n");
+ goto reject;
+ }
+ text_ptr = strchr(text_in, '=');
+ if (!text_ptr) {
+ pr_err("No \"=\" separator found in Text Data,"
+ " cannot continue.\n");
+ goto reject;
+ }
+ if (!strncmp("=All", text_ptr, 4)) {
+ cmd->cmd_flags |= IFC_SENDTARGETS_ALL;
+ } else if (!strncmp("=iqn.", text_ptr, 5) ||
+ !strncmp("=eui.", text_ptr, 5)) {
+ cmd->cmd_flags |= IFC_SENDTARGETS_SINGLE;
+ } else {
+ pr_err("Unable to locate valid SendTargets=%s value\n", text_ptr);
+ goto reject;
+ }
+
+ spin_lock_bh(&conn->cmd_lock);
+ list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list);
+ spin_unlock_bh(&conn->cmd_lock);
+
+ iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
+
+ if (!(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
+ cmdsn_ret = iscsit_sequence_cmd(conn, cmd,
+ (unsigned char *)hdr, hdr->cmdsn);
+ if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
+ return -1;
+
+ return 0;
+ }
+
+ return iscsit_execute_cmd(cmd, 0);
+
+reject:
+ return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR,
+ (unsigned char *)hdr);
+}
+EXPORT_SYMBOL(iscsit_process_text_cmd);
+
+static int
+iscsit_handle_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
+ unsigned char *buf)
+{
+ struct iscsi_text *hdr = (struct iscsi_text *)buf;
+ char *text_in = NULL;
+ u32 payload_length = ntoh24(hdr->dlength);
+ int rx_size, rc;
+
+ rc = iscsit_setup_text_cmd(conn, cmd, hdr);
+ if (rc < 0)
+ return 0;
+
+ rx_size = payload_length;
+ if (payload_length) {
+ u32 checksum = 0, data_crc = 0;
+ u32 padding = 0, pad_bytes = 0;
+ int niov = 0, rx_got;
+ struct kvec iov[3];
+
+ text_in = kzalloc(payload_length, GFP_KERNEL);
if (!text_in) {
pr_err("Unable to allocate memory for"
" incoming text parameters\n");
- return -1;
+ goto reject;
}
+ cmd->text_in_ptr = text_in;
memset(iov, 0, 3 * sizeof(struct kvec));
iov[niov].iov_base = text_in;
- iov[niov++].iov_len = text_length;
+ iov[niov++].iov_len = payload_length;
padding = ((-payload_length) & 3);
if (padding != 0) {
@@ -2017,14 +2079,12 @@ static int iscsit_handle_text_cmd(
}
rx_got = rx_data(conn, &iov[0], niov, rx_size);
- if (rx_got != rx_size) {
- kfree(text_in);
- return -1;
- }
+ if (rx_got != rx_size)
+ goto reject;
if (conn->conn_ops->DataDigest) {
iscsit_do_crypto_hash_buf(&conn->conn_rx_hash,
- text_in, text_length,
+ text_in, payload_length,
padding, (u8 *)&pad_bytes,
(u8 *)&data_crc);
@@ -2036,8 +2096,7 @@ static int iscsit_handle_text_cmd(
pr_err("Unable to recover from"
" Text Data digest failure while in"
" ERL=0.\n");
- kfree(text_in);
- return -1;
+ goto reject;
} else {
/*
* Silently drop this PDU and let the
@@ -2052,68 +2111,22 @@ static int iscsit_handle_text_cmd(
} else {
pr_debug("Got CRC32C DataDigest"
" 0x%08x for %u bytes of text data.\n",
- checksum, text_length);
+ checksum, payload_length);
}
}
- text_in[text_length - 1] = '\0';
+ text_in[payload_length - 1] = '\0';
pr_debug("Successfully read %d bytes of text"
- " data.\n", text_length);
-
- if (strncmp("SendTargets", text_in, 11) != 0) {
- pr_err("Received Text Data that is not"
- " SendTargets, cannot continue.\n");
- kfree(text_in);
- return -1;
- }
- text_ptr = strchr(text_in, '=');
- if (!text_ptr) {
- pr_err("No \"=\" separator found in Text Data,"
- " cannot continue.\n");
- kfree(text_in);
- return -1;
- }
- if (strncmp("=All", text_ptr, 4) != 0) {
- pr_err("Unable to locate All value for"
- " SendTargets key, cannot continue.\n");
- kfree(text_in);
- return -1;
- }
-/*#warning Support SendTargets=(iSCSI Target Name/Nothing) values. */
- kfree(text_in);
+ " data.\n", payload_length);
}
- cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
- if (!cmd)
- return iscsit_add_reject(ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, buf, conn);
-
- cmd->iscsi_opcode = ISCSI_OP_TEXT;
- cmd->i_state = ISTATE_SEND_TEXTRSP;
- cmd->immediate_cmd = ((hdr->opcode & ISCSI_OP_IMMEDIATE) ? 1 : 0);
- conn->sess->init_task_tag = cmd->init_task_tag = hdr->itt;
- cmd->targ_xfer_tag = 0xFFFFFFFF;
- cmd->cmd_sn = be32_to_cpu(hdr->cmdsn);
- cmd->exp_stat_sn = be32_to_cpu(hdr->exp_statsn);
- cmd->data_direction = DMA_NONE;
-
- spin_lock_bh(&conn->cmd_lock);
- list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list);
- spin_unlock_bh(&conn->cmd_lock);
+ return iscsit_process_text_cmd(conn, cmd, hdr);
- iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
-
- if (!(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
- cmdsn_ret = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
- if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_PROTOCOL_ERROR,
- 1, 0, buf, cmd);
-
- return 0;
- }
-
- return iscsit_execute_cmd(cmd, 0);
+reject:
+ kfree(cmd->text_in_ptr);
+ cmd->text_in_ptr = NULL;
+ return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR, buf);
}
+EXPORT_SYMBOL(iscsit_handle_text_cmd);
int iscsit_logout_closesession(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
{
@@ -2292,14 +2305,11 @@ iscsit_handle_logout_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
if (ret < 0)
return ret;
} else {
- cmdsn_ret = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
- if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
+ cmdsn_ret = iscsit_sequence_cmd(conn, cmd, buf, hdr->cmdsn);
+ if (cmdsn_ret == CMDSN_LOWER_THAN_EXP)
logout_remove = 0;
- } else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER) {
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_PROTOCOL_ERROR,
- 1, 0, buf, cmd);
- }
+ else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
+ return -1;
}
return logout_remove;
@@ -2323,8 +2333,8 @@ static int iscsit_handle_snack(
if (!conn->sess->sess_ops->ErrorRecoveryLevel) {
pr_err("Initiator sent SNACK request while in"
" ErrorRecoveryLevel=0.\n");
- return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
- buf, conn);
+ return iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR,
+ buf);
}
/*
* SNACK_DATA and SNACK_R2T are both 0, so check which function to
@@ -2348,13 +2358,13 @@ static int iscsit_handle_snack(
case ISCSI_FLAG_SNACK_TYPE_RDATA:
/* FIXME: Support R-Data SNACK */
pr_err("R-Data SNACK Not Supported.\n");
- return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
- buf, conn);
+ return iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR,
+ buf);
default:
pr_err("Unknown SNACK type 0x%02x, protocol"
" error.\n", hdr->flags & 0x0f);
- return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
- buf, conn);
+ return iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR,
+ buf);
}
return 0;
@@ -2426,14 +2436,14 @@ static int iscsit_handle_immediate_data(
pr_err("Unable to recover from"
" Immediate Data digest failure while"
" in ERL=0.\n");
- iscsit_add_reject_from_cmd(
+ iscsit_reject_cmd(cmd,
ISCSI_REASON_DATA_DIGEST_ERROR,
- 1, 0, (unsigned char *)hdr, cmd);
+ (unsigned char *)hdr);
return IMMEDIATE_DATA_CANNOT_RECOVER;
} else {
- iscsit_add_reject_from_cmd(
+ iscsit_reject_cmd(cmd,
ISCSI_REASON_DATA_DIGEST_ERROR,
- 0, 0, (unsigned char *)hdr, cmd);
+ (unsigned char *)hdr);
return IMMEDIATE_DATA_ERL1_CRC_FAILURE;
}
} else {
@@ -3276,8 +3286,6 @@ static u8 iscsit_convert_tcm_tmr_rsp(struct se_tmr_req *se_tmr)
return ISCSI_TMF_RSP_NO_LUN;
case TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED:
return ISCSI_TMF_RSP_NOT_SUPPORTED;
- case TMR_FUNCTION_AUTHORIZATION_FAILED:
- return ISCSI_TMF_RSP_AUTH_FAILED;
case TMR_FUNCTION_REJECTED:
default:
return ISCSI_TMF_RSP_REJECTED;
@@ -3372,6 +3380,7 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd)
struct iscsi_tpg_np *tpg_np;
int buffer_len, end_of_buf = 0, len = 0, payload_len = 0;
unsigned char buf[ISCSI_IQN_LEN+12]; /* iqn + "TargetName=" + \0 */
+ unsigned char *text_in = cmd->text_in_ptr, *text_ptr = NULL;
buffer_len = max(conn->conn_ops->MaxRecvDataSegmentLength,
SENDTARGETS_BUF_LIMIT);
@@ -3382,9 +3391,31 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd)
" response.\n");
return -ENOMEM;
}
+ /*
+ * Locate pointer to iqn./eui. string for IFC_SENDTARGETS_SINGLE
+ * explicit case..
+ */
+ if (cmd->cmd_flags & IFC_SENDTARGETS_SINGLE) {
+ text_ptr = strchr(text_in, '=');
+ if (!text_ptr) {
+ pr_err("Unable to locate '=' string in text_in:"
+ " %s\n", text_in);
+ kfree(payload);
+ return -EINVAL;
+ }
+ /*
+ * Skip over '=' character..
+ */
+ text_ptr += 1;
+ }
spin_lock(&tiqn_lock);
list_for_each_entry(tiqn, &g_tiqn_list, tiqn_list) {
+ if ((cmd->cmd_flags & IFC_SENDTARGETS_SINGLE) &&
+ strcmp(tiqn->tiqn, text_ptr)) {
+ continue;
+ }
+
len = sprintf(buf, "TargetName=%s", tiqn->tiqn);
len += 1;
@@ -3438,6 +3469,9 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd)
eob:
if (end_of_buf)
break;
+
+ if (cmd->cmd_flags & IFC_SENDTARGETS_SINGLE)
+ break;
}
spin_unlock(&tiqn_lock);
@@ -3446,52 +3480,62 @@ eob:
return payload_len;
}
-/*
- * FIXME: Add support for F_BIT and C_BIT when the length is longer than
- * MaxRecvDataSegmentLength.
- */
-static int iscsit_send_text_rsp(
- struct iscsi_cmd *cmd,
- struct iscsi_conn *conn)
+int
+iscsit_build_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn,
+ struct iscsi_text_rsp *hdr)
{
- struct iscsi_text_rsp *hdr;
- struct kvec *iov;
- u32 padding = 0, tx_size = 0;
- int text_length, iov_count = 0;
+ int text_length, padding;
text_length = iscsit_build_sendtargets_response(cmd);
if (text_length < 0)
return text_length;
+ hdr->opcode = ISCSI_OP_TEXT_RSP;
+ hdr->flags |= ISCSI_FLAG_CMD_FINAL;
padding = ((-text_length) & 3);
- if (padding != 0) {
- memset(cmd->buf_ptr + text_length, 0, padding);
- pr_debug("Attaching %u additional bytes for"
- " padding.\n", padding);
- }
-
- hdr = (struct iscsi_text_rsp *) cmd->pdu;
- memset(hdr, 0, ISCSI_HDR_LEN);
- hdr->opcode = ISCSI_OP_TEXT_RSP;
- hdr->flags |= ISCSI_FLAG_CMD_FINAL;
hton24(hdr->dlength, text_length);
- hdr->itt = cmd->init_task_tag;
- hdr->ttt = cpu_to_be32(cmd->targ_xfer_tag);
- cmd->stat_sn = conn->stat_sn++;
- hdr->statsn = cpu_to_be32(cmd->stat_sn);
+ hdr->itt = cmd->init_task_tag;
+ hdr->ttt = cpu_to_be32(cmd->targ_xfer_tag);
+ cmd->stat_sn = conn->stat_sn++;
+ hdr->statsn = cpu_to_be32(cmd->stat_sn);
iscsit_increment_maxcmdsn(cmd, conn->sess);
- hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn);
- hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn);
+ hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn);
+ hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn);
- iov = &cmd->iov_misc[0];
+ pr_debug("Built Text Response: ITT: 0x%08x, StatSN: 0x%08x,"
+ " Length: %u, CID: %hu\n", cmd->init_task_tag, cmd->stat_sn,
+ text_length, conn->cid);
+
+ return text_length + padding;
+}
+EXPORT_SYMBOL(iscsit_build_text_rsp);
+/*
+ * FIXME: Add support for F_BIT and C_BIT when the length is longer than
+ * MaxRecvDataSegmentLength.
+ */
+static int iscsit_send_text_rsp(
+ struct iscsi_cmd *cmd,
+ struct iscsi_conn *conn)
+{
+ struct iscsi_text_rsp *hdr = (struct iscsi_text_rsp *)cmd->pdu;
+ struct kvec *iov;
+ u32 tx_size = 0;
+ int text_length, iov_count = 0, rc;
+
+ rc = iscsit_build_text_rsp(cmd, conn, hdr);
+ if (rc < 0)
+ return rc;
+
+ text_length = rc;
+ iov = &cmd->iov_misc[0];
iov[iov_count].iov_base = cmd->pdu;
iov[iov_count++].iov_len = ISCSI_HDR_LEN;
iov[iov_count].iov_base = cmd->buf_ptr;
- iov[iov_count++].iov_len = text_length + padding;
+ iov[iov_count++].iov_len = text_length;
- tx_size += (ISCSI_HDR_LEN + text_length + padding);
+ tx_size += (ISCSI_HDR_LEN + text_length);
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
@@ -3507,7 +3551,7 @@ static int iscsit_send_text_rsp(
if (conn->conn_ops->DataDigest) {
iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- cmd->buf_ptr, (text_length + padding),
+ cmd->buf_ptr, text_length,
0, NULL, (u8 *)&cmd->data_crc);
iov[iov_count].iov_base = &cmd->data_crc;
@@ -3515,16 +3559,13 @@ static int iscsit_send_text_rsp(
tx_size += ISCSI_CRC_LEN;
pr_debug("Attaching DataDigest for %u bytes of text"
- " data, CRC 0x%08x\n", (text_length + padding),
+ " data, CRC 0x%08x\n", text_length,
cmd->data_crc);
}
cmd->iov_misc_count = iov_count;
cmd->tx_size = tx_size;
- pr_debug("Built Text Response: ITT: 0x%08x, StatSN: 0x%08x,"
- " Length: %u, CID: %hu\n", cmd->init_task_tag, cmd->stat_sn,
- text_length, conn->cid);
return 0;
}
@@ -3533,6 +3574,7 @@ iscsit_build_reject(struct iscsi_cmd *cmd, struct iscsi_conn *conn,
struct iscsi_reject *hdr)
{
hdr->opcode = ISCSI_OP_REJECT;
+ hdr->reason = cmd->reject_reason;
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
hton24(hdr->dlength, ISCSI_HDR_LEN);
hdr->ffffffff = cpu_to_be32(0xffffffff);
@@ -3806,18 +3848,11 @@ check_rsp_state:
case ISTATE_SEND_STATUS_RECOVERY:
case ISTATE_SEND_TEXTRSP:
case ISTATE_SEND_TASKMGTRSP:
+ case ISTATE_SEND_REJECT:
spin_lock_bh(&cmd->istate_lock);
cmd->i_state = ISTATE_SENT_STATUS;
spin_unlock_bh(&cmd->istate_lock);
break;
- case ISTATE_SEND_REJECT:
- if (cmd->cmd_flags & ICF_REJECT_FAIL_CONN) {
- cmd->cmd_flags &= ~ICF_REJECT_FAIL_CONN;
- complete(&cmd->reject_comp);
- goto err;
- }
- complete(&cmd->reject_comp);
- break;
default:
pr_err("Unknown Opcode: 0x%02x ITT:"
" 0x%08x, i_state: %d on CID: %hu\n",
@@ -3922,8 +3957,7 @@ static int iscsi_target_rx_opcode(struct iscsi_conn *conn, unsigned char *buf)
case ISCSI_OP_SCSI_CMD:
cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
if (!cmd)
- return iscsit_add_reject(ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, buf, conn);
+ goto reject;
ret = iscsit_handle_scsi_cmd(conn, cmd, buf);
break;
@@ -3935,27 +3969,28 @@ static int iscsi_target_rx_opcode(struct iscsi_conn *conn, unsigned char *buf)
if (hdr->ttt == cpu_to_be32(0xFFFFFFFF)) {
cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
if (!cmd)
- return iscsit_add_reject(ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, buf, conn);
+ goto reject;
}
ret = iscsit_handle_nop_out(conn, cmd, buf);
break;
case ISCSI_OP_SCSI_TMFUNC:
cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
if (!cmd)
- return iscsit_add_reject(ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, buf, conn);
+ goto reject;
ret = iscsit_handle_task_mgt_cmd(conn, cmd, buf);
break;
case ISCSI_OP_TEXT:
- ret = iscsit_handle_text_cmd(conn, buf);
+ cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
+ if (!cmd)
+ goto reject;
+
+ ret = iscsit_handle_text_cmd(conn, cmd, buf);
break;
case ISCSI_OP_LOGOUT:
cmd = iscsit_allocate_cmd(conn, GFP_KERNEL);
if (!cmd)
- return iscsit_add_reject(ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, buf, conn);
+ goto reject;
ret = iscsit_handle_logout_cmd(conn, cmd, buf);
if (ret > 0)
@@ -3987,6 +4022,8 @@ static int iscsi_target_rx_opcode(struct iscsi_conn *conn, unsigned char *buf)
}
return ret;
+reject:
+ return iscsit_add_reject(conn, ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
}
int iscsi_target_rx_thread(void *arg)
@@ -4039,11 +4076,6 @@ restart:
goto transport_err;
}
- /*
- * Set conn->bad_hdr for use with REJECT PDUs.
- */
- memcpy(&conn->bad_hdr, &buffer, ISCSI_HDR_LEN);
-
if (conn->conn_ops->HeaderDigest) {
iov.iov_base = &digest;
iov.iov_len = ISCSI_CRC_LEN;
@@ -4086,8 +4118,8 @@ restart:
(!(opcode & ISCSI_OP_LOGOUT)))) {
pr_err("Received illegal iSCSI Opcode: 0x%02x"
" while in Discovery Session, rejecting.\n", opcode);
- iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
- buffer, conn);
+ iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR,
+ buffer);
goto transport_err;
}
diff --git a/drivers/target/iscsi/iscsi_target.h b/drivers/target/iscsi/iscsi_target.h
index a0050b2..2c437cb 100644
--- a/drivers/target/iscsi/iscsi_target.h
+++ b/drivers/target/iscsi/iscsi_target.h
@@ -15,7 +15,7 @@ extern struct iscsi_np *iscsit_add_np(struct __kernel_sockaddr_storage *,
extern int iscsit_reset_np_thread(struct iscsi_np *, struct iscsi_tpg_np *,
struct iscsi_portal_group *);
extern int iscsit_del_np(struct iscsi_np *);
-extern int iscsit_add_reject_from_cmd(u8, int, int, unsigned char *, struct iscsi_cmd *);
+extern int iscsit_reject_cmd(struct iscsi_cmd *cmd, u8, unsigned char *);
extern void iscsit_set_unsoliticed_dataout(struct iscsi_cmd *);
extern int iscsit_logout_closesession(struct iscsi_cmd *, struct iscsi_conn *);
extern int iscsit_logout_closeconnection(struct iscsi_cmd *, struct iscsi_conn *);
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 8d8b3ff..bbfd288 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -20,6 +20,7 @@
****************************************************************************/
#include <linux/configfs.h>
+#include <linux/ctype.h>
#include <linux/export.h>
#include <linux/inet.h>
#include <target/target_core_base.h>
@@ -78,11 +79,12 @@ static ssize_t lio_target_np_store_sctp(
struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
struct iscsi_tpg_np, se_tpg_np);
struct iscsi_tpg_np *tpg_np_sctp = NULL;
- char *endptr;
u32 op;
int ret;
- op = simple_strtoul(page, &endptr, 0);
+ ret = kstrtou32(page, 0, &op);
+ if (ret)
+ return ret;
if ((op != 1) && (op != 0)) {
pr_err("Illegal value for tpg_enable: %u\n", op);
return -EINVAL;
@@ -382,11 +384,12 @@ static ssize_t iscsi_nacl_attrib_store_##name( \
{ \
struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
se_node_acl); \
- char *endptr; \
u32 val; \
int ret; \
\
- val = simple_strtoul(page, &endptr, 0); \
+ ret = kstrtou32(page, 0, &val); \
+ if (ret) \
+ return ret; \
ret = iscsit_na_##name(nacl, val); \
if (ret < 0) \
return ret; \
@@ -474,7 +477,7 @@ static ssize_t __iscsi_##prefix##_store_##name( \
if (!capable(CAP_SYS_ADMIN)) \
return -EPERM; \
\
- snprintf(auth->name, PAGE_SIZE, "%s", page); \
+ snprintf(auth->name, sizeof(auth->name), "%s", page); \
if (!strncmp("NULL", auth->name, 4)) \
auth->naf_flags &= ~flags; \
else \
@@ -789,11 +792,12 @@ static ssize_t lio_target_nacl_store_cmdsn_depth(
struct iscsi_portal_group *tpg = container_of(se_tpg,
struct iscsi_portal_group, tpg_se_tpg);
struct config_item *acl_ci, *tpg_ci, *wwn_ci;
- char *endptr;
u32 cmdsn_depth = 0;
int ret;
- cmdsn_depth = simple_strtoul(page, &endptr, 0);
+ ret = kstrtou32(page, 0, &cmdsn_depth);
+ if (ret)
+ return ret;
if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
pr_err("Passed cmdsn_depth: %u exceeds"
" TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
@@ -977,14 +981,15 @@ static ssize_t iscsi_tpg_attrib_store_##name( \
{ \
struct iscsi_portal_group *tpg = container_of(se_tpg, \
struct iscsi_portal_group, tpg_se_tpg); \
- char *endptr; \
u32 val; \
int ret; \
\
if (iscsit_get_tpg(tpg) < 0) \
return -EINVAL; \
\
- val = simple_strtoul(page, &endptr, 0); \
+ ret = kstrtou32(page, 0, &val); \
+ if (ret) \
+ goto out; \
ret = iscsit_ta_##name(tpg, val); \
if (ret < 0) \
goto out; \
@@ -1053,6 +1058,131 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
/* End items for lio_target_tpg_attrib_cit */
+/* Start items for lio_target_tpg_auth_cit */
+
+#define __DEF_TPG_AUTH_STR(prefix, name, flags) \
+static ssize_t __iscsi_##prefix##_show_##name( \
+ struct se_portal_group *se_tpg, \
+ char *page) \
+{ \
+ struct iscsi_portal_group *tpg = container_of(se_tpg, \
+ struct iscsi_portal_group, tpg_se_tpg); \
+ struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
+ \
+ if (!capable(CAP_SYS_ADMIN)) \
+ return -EPERM; \
+ \
+ return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
+} \
+ \
+static ssize_t __iscsi_##prefix##_store_##name( \
+ struct se_portal_group *se_tpg, \
+ const char *page, \
+ size_t count) \
+{ \
+ struct iscsi_portal_group *tpg = container_of(se_tpg, \
+ struct iscsi_portal_group, tpg_se_tpg); \
+ struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
+ \
+ if (!capable(CAP_SYS_ADMIN)) \
+ return -EPERM; \
+ \
+ snprintf(auth->name, sizeof(auth->name), "%s", page); \
+ if (!(strncmp("NULL", auth->name, 4))) \
+ auth->naf_flags &= ~flags; \
+ else \
+ auth->naf_flags |= flags; \
+ \
+ if ((auth->naf_flags & NAF_USERID_IN_SET) && \
+ (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
+ auth->authenticate_target = 1; \
+ else \
+ auth->authenticate_target = 0; \
+ \
+ return count; \
+}
+
+#define __DEF_TPG_AUTH_INT(prefix, name) \
+static ssize_t __iscsi_##prefix##_show_##name( \
+ struct se_portal_group *se_tpg, \
+ char *page) \
+{ \
+ struct iscsi_portal_group *tpg = container_of(se_tpg, \
+ struct iscsi_portal_group, tpg_se_tpg); \
+ struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
+ \
+ if (!capable(CAP_SYS_ADMIN)) \
+ return -EPERM; \
+ \
+ return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
+}
+
+#define DEF_TPG_AUTH_STR(name, flags) \
+ __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \
+static ssize_t iscsi_tpg_auth_show_##name( \
+ struct se_portal_group *se_tpg, \
+ char *page) \
+{ \
+ return __iscsi_tpg_auth_show_##name(se_tpg, page); \
+} \
+ \
+static ssize_t iscsi_tpg_auth_store_##name( \
+ struct se_portal_group *se_tpg, \
+ const char *page, \
+ size_t count) \
+{ \
+ return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \
+}
+
+#define DEF_TPG_AUTH_INT(name) \
+ __DEF_TPG_AUTH_INT(tpg_auth, name) \
+static ssize_t iscsi_tpg_auth_show_##name( \
+ struct se_portal_group *se_tpg, \
+ char *page) \
+{ \
+ return __iscsi_tpg_auth_show_##name(se_tpg, page); \
+}
+
+#define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode);
+#define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name);
+
+/*
+ * * One-way authentication userid
+ * */
+DEF_TPG_AUTH_STR(userid, NAF_USERID_SET);
+TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
+/*
+ * * One-way authentication password
+ * */
+DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET);
+TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
+/*
+ * * Enforce mutual authentication
+ * */
+DEF_TPG_AUTH_INT(authenticate_target);
+TPG_AUTH_ATTR_RO(authenticate_target);
+/*
+ * * Mutual authentication userid
+ * */
+DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
+TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
+/*
+ * * Mutual authentication password
+ * */
+DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
+TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *lio_target_tpg_auth_attrs[] = {
+ &iscsi_tpg_auth_userid.attr,
+ &iscsi_tpg_auth_password.attr,
+ &iscsi_tpg_auth_authenticate_target.attr,
+ &iscsi_tpg_auth_userid_mutual.attr,
+ &iscsi_tpg_auth_password_mutual.attr,
+ NULL,
+};
+
+/* End items for lio_target_tpg_auth_cit */
+
/* Start items for lio_target_tpg_param_cit */
#define DEF_TPG_PARAM(name) \
@@ -1087,13 +1217,14 @@ static ssize_t iscsi_tpg_param_store_##name( \
struct iscsi_portal_group *tpg = container_of(se_tpg, \
struct iscsi_portal_group, tpg_se_tpg); \
char *buf; \
- int ret; \
+ int ret, len; \
\
buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
if (!buf) \
return -ENOMEM; \
- snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
- buf[strlen(buf)-1] = '\0'; /* Kill newline */ \
+ len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
+ if (isspace(buf[len-1])) \
+ buf[len-1] = '\0'; /* Kill newline */ \
\
if (iscsit_get_tpg(tpg) < 0) { \
kfree(buf); \
@@ -1230,11 +1361,12 @@ static ssize_t lio_target_tpg_store_enable(
{
struct iscsi_portal_group *tpg = container_of(se_tpg,
struct iscsi_portal_group, tpg_se_tpg);
- char *endptr;
u32 op;
- int ret = 0;
+ int ret;
- op = simple_strtoul(page, &endptr, 0);
+ ret = kstrtou32(page, 0, &op);
+ if (ret)
+ return ret;
if ((op != 1) && (op != 0)) {
pr_err("Illegal value for tpg_enable: %u\n", op);
return -EINVAL;
@@ -1282,15 +1414,15 @@ static struct se_portal_group *lio_target_tiqn_addtpg(
{
struct iscsi_portal_group *tpg;
struct iscsi_tiqn *tiqn;
- char *tpgt_str, *end_ptr;
- int ret = 0;
- unsigned short int tpgt;
+ char *tpgt_str;
+ int ret;
+ u16 tpgt;
tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
/*
* Only tpgt_# directory groups can be created below
* target/iscsi/iqn.superturodiskarry/
- */
+ */
tpgt_str = strstr(name, "tpgt_");
if (!tpgt_str) {
pr_err("Unable to locate \"tpgt_#\" directory"
@@ -1298,7 +1430,9 @@ static struct se_portal_group *lio_target_tiqn_addtpg(
return NULL;
}
tpgt_str += 5; /* Skip ahead of "tpgt_" */
- tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0);
+ ret = kstrtou16(tpgt_str, 0, &tpgt);
+ if (ret)
+ return NULL;
tpg = iscsit_alloc_portal_group(tiqn, tpgt);
if (!tpg)
@@ -1506,10 +1640,12 @@ static ssize_t iscsi_disc_store_enforce_discovery_auth(
{
struct iscsi_param *param;
struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
- char *endptr;
u32 op;
+ int err;
- op = simple_strtoul(page, &endptr, 0);
+ err = kstrtou32(page, 0, &op);
+ if (err)
+ return -EINVAL;
if ((op != 1) && (op != 0)) {
pr_err("Illegal value for enforce_discovery_auth:"
" %u\n", op);
@@ -1655,13 +1791,12 @@ static int lio_queue_status(struct se_cmd *se_cmd)
return 0;
}
-static int lio_queue_tm_rsp(struct se_cmd *se_cmd)
+static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
{
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
cmd->i_state = ISTATE_SEND_TASKMGTRSP;
iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
- return 0;
}
static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
@@ -1866,6 +2001,7 @@ int iscsi_target_register_configfs(void)
TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
+ TF_CIT_TMPL(fabric)->tfc_tpg_auth_cit.ct_attrs = lio_target_tpg_auth_attrs;
TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index 60ec4b9..4f77a78 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -132,7 +132,8 @@ enum cmd_flags_table {
ICF_CONTIG_MEMORY = 0x00000020,
ICF_ATTACHED_TO_RQUEUE = 0x00000040,
ICF_OOO_CMDSN = 0x00000080,
- ICF_REJECT_FAIL_CONN = 0x00000100,
+ IFC_SENDTARGETS_ALL = 0x00000100,
+ IFC_SENDTARGETS_SINGLE = 0x00000200,
};
/* struct iscsi_cmd->i_state */
@@ -366,6 +367,8 @@ struct iscsi_cmd {
u8 maxcmdsn_inc;
/* Immediate Unsolicited Dataout */
u8 unsolicited_data;
+ /* Reject reason code */
+ u8 reject_reason;
/* CID contained in logout PDU when opcode == ISCSI_INIT_LOGOUT_CMND */
u16 logout_cid;
/* Command flags */
@@ -427,6 +430,8 @@ struct iscsi_cmd {
u32 tx_size;
/* Buffer used for various purposes */
void *buf_ptr;
+ /* Used by SendTargets=[iqn.,eui.] discovery */
+ void *text_in_ptr;
/* See include/linux/dma-mapping.h */
enum dma_data_direction data_direction;
/* iSCSI PDU Header + CRC */
@@ -446,7 +451,6 @@ struct iscsi_cmd {
struct list_head datain_list;
/* R2T List */
struct list_head cmd_r2t_list;
- struct completion reject_comp;
/* Timer for DataOUT */
struct timer_list dataout_timer;
/* Iovecs for SCSI data payload RX/TX w/ kernel level sockets */
@@ -528,8 +532,6 @@ struct iscsi_conn {
u32 of_marker;
/* Used for calculating OFMarker offset to next PDU */
u32 of_marker_offset;
- /* Complete Bad PDU for sending reject */
- unsigned char bad_hdr[ISCSI_HDR_LEN];
#define IPV6_ADDRESS_SPACE 48
unsigned char login_ip[IPV6_ADDRESS_SPACE];
unsigned char local_ip[IPV6_ADDRESS_SPACE];
@@ -809,6 +811,7 @@ struct iscsi_portal_group {
struct mutex tpg_access_lock;
struct mutex np_login_lock;
struct iscsi_tpg_attrib tpg_attrib;
+ struct iscsi_node_auth tpg_demo_auth;
/* Pointer to default list of iSCSI parameters for TPG */
struct iscsi_param_list *param_list;
struct iscsi_tiqn *tpg_tiqn;
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index dcb199d..08bd878 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -746,13 +746,12 @@ int iscsit_check_post_dataout(
if (!conn->sess->sess_ops->ErrorRecoveryLevel) {
pr_err("Unable to recover from DataOUT CRC"
" failure while ERL=0, closing session.\n");
- iscsit_add_reject_from_cmd(ISCSI_REASON_DATA_DIGEST_ERROR,
- 1, 0, buf, cmd);
+ iscsit_reject_cmd(cmd, ISCSI_REASON_DATA_DIGEST_ERROR,
+ buf);
return DATAOUT_CANNOT_RECOVER;
}
- iscsit_add_reject_from_cmd(ISCSI_REASON_DATA_DIGEST_ERROR,
- 0, 0, buf, cmd);
+ iscsit_reject_cmd(cmd, ISCSI_REASON_DATA_DIGEST_ERROR, buf);
return iscsit_dataout_post_crc_failed(cmd, buf);
}
}
@@ -909,6 +908,7 @@ void iscsit_cause_connection_reinstatement(struct iscsi_conn *conn, int sleep)
wait_for_completion(&conn->conn_wait_comp);
complete(&conn->conn_post_wait_comp);
}
+EXPORT_SYMBOL(iscsit_cause_connection_reinstatement);
void iscsit_fall_back_to_erl0(struct iscsi_session *sess)
{
diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c
index 40d9dbc..586c268 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.c
+++ b/drivers/target/iscsi/iscsi_target_erl1.c
@@ -162,9 +162,8 @@ static int iscsit_handle_r2t_snack(
" protocol error.\n", cmd->init_task_tag, begrun,
(begrun + runlength), cmd->acked_data_sn);
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_PROTOCOL_ERROR,
- 1, 0, buf, cmd);
+ return iscsit_reject_cmd(cmd,
+ ISCSI_REASON_PROTOCOL_ERROR, buf);
}
if (runlength) {
@@ -173,8 +172,8 @@ static int iscsit_handle_r2t_snack(
" with BegRun: 0x%08x, RunLength: 0x%08x, exceeds"
" current R2TSN: 0x%08x, protocol error.\n",
cmd->init_task_tag, begrun, runlength, cmd->r2t_sn);
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_BOOKMARK_INVALID, 1, 0, buf, cmd);
+ return iscsit_reject_cmd(cmd,
+ ISCSI_REASON_BOOKMARK_INVALID, buf);
}
last_r2tsn = (begrun + runlength);
} else
@@ -433,8 +432,7 @@ static int iscsit_handle_recovery_datain(
" protocol error.\n", cmd->init_task_tag, begrun,
(begrun + runlength), cmd->acked_data_sn);
- return iscsit_add_reject_from_cmd(ISCSI_REASON_PROTOCOL_ERROR,
- 1, 0, buf, cmd);
+ return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR, buf);
}
/*
@@ -445,14 +443,14 @@ static int iscsit_handle_recovery_datain(
pr_err("Initiator requesting BegRun: 0x%08x, RunLength"
": 0x%08x greater than maximum DataSN: 0x%08x.\n",
begrun, runlength, (cmd->data_sn - 1));
- return iscsit_add_reject_from_cmd(ISCSI_REASON_BOOKMARK_INVALID,
- 1, 0, buf, cmd);
+ return iscsit_reject_cmd(cmd, ISCSI_REASON_BOOKMARK_INVALID,
+ buf);
}
dr = iscsit_allocate_datain_req();
if (!dr)
- return iscsit_add_reject_from_cmd(ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, 0, buf, cmd);
+ return iscsit_reject_cmd(cmd, ISCSI_REASON_BOOKMARK_NO_RESOURCES,
+ buf);
dr->data_sn = dr->begrun = begrun;
dr->runlength = runlength;
@@ -1090,7 +1088,7 @@ int iscsit_handle_ooo_cmdsn(
ooo_cmdsn = iscsit_allocate_ooo_cmdsn();
if (!ooo_cmdsn)
- return CMDSN_ERROR_CANNOT_RECOVER;
+ return -ENOMEM;
ooo_cmdsn->cmd = cmd;
ooo_cmdsn->batch_count = (batch) ?
@@ -1101,10 +1099,10 @@ int iscsit_handle_ooo_cmdsn(
if (iscsit_attach_ooo_cmdsn(sess, ooo_cmdsn) < 0) {
kmem_cache_free(lio_ooo_cache, ooo_cmdsn);
- return CMDSN_ERROR_CANNOT_RECOVER;
+ return -ENOMEM;
}
- return CMDSN_HIGHER_THAN_EXP;
+ return 0;
}
static int iscsit_set_dataout_timeout_values(
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index cd5018f..c4675b4 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -112,6 +112,7 @@ static u32 iscsi_handle_authentication(
struct iscsi_session *sess = conn->sess;
struct iscsi_node_auth *auth;
struct iscsi_node_acl *iscsi_nacl;
+ struct iscsi_portal_group *iscsi_tpg;
struct se_node_acl *se_nacl;
if (!sess->sess_ops->SessionType) {
@@ -132,7 +133,17 @@ static u32 iscsi_handle_authentication(
return -1;
}
- auth = ISCSI_NODE_AUTH(iscsi_nacl);
+ if (se_nacl->dynamic_node_acl) {
+ iscsi_tpg = container_of(se_nacl->se_tpg,
+ struct iscsi_portal_group, tpg_se_tpg);
+
+ auth = &iscsi_tpg->tpg_demo_auth;
+ } else {
+ iscsi_nacl = container_of(se_nacl, struct iscsi_node_acl,
+ se_node_acl);
+
+ auth = ISCSI_NODE_AUTH(iscsi_nacl);
+ }
} else {
/*
* For SessionType=Discovery
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index e382221..35fd643 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -1799,9 +1799,6 @@ void iscsi_set_connection_parameters(
* this key is not sent over the wire.
*/
if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
- if (param_list->iser == true)
- continue;
-
ops->MaxXmitDataSegmentLength =
simple_strtoul(param->value, &tmpptr, 0);
pr_debug("MaxXmitDataSegmentLength: %s\n",
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 08a3bac..1df06d5 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -178,7 +178,6 @@ struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *conn, gfp_t gfp_mask)
INIT_LIST_HEAD(&cmd->i_conn_node);
INIT_LIST_HEAD(&cmd->datain_list);
INIT_LIST_HEAD(&cmd->cmd_r2t_list);
- init_completion(&cmd->reject_comp);
spin_lock_init(&cmd->datain_lock);
spin_lock_init(&cmd->dataout_timeout_lock);
spin_lock_init(&cmd->istate_lock);
@@ -284,13 +283,12 @@ static inline int iscsit_check_received_cmdsn(struct iscsi_session *sess, u32 cm
* Commands may be received out of order if MC/S is in use.
* Ensure they are executed in CmdSN order.
*/
-int iscsit_sequence_cmd(
- struct iscsi_conn *conn,
- struct iscsi_cmd *cmd,
- __be32 cmdsn)
+int iscsit_sequence_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
+ unsigned char *buf, __be32 cmdsn)
{
- int ret;
- int cmdsn_ret;
+ int ret, cmdsn_ret;
+ bool reject = false;
+ u8 reason = ISCSI_REASON_BOOKMARK_NO_RESOURCES;
mutex_lock(&conn->sess->cmdsn_mutex);
@@ -300,9 +298,19 @@ int iscsit_sequence_cmd(
ret = iscsit_execute_cmd(cmd, 0);
if ((ret >= 0) && !list_empty(&conn->sess->sess_ooo_cmdsn_list))
iscsit_execute_ooo_cmdsns(conn->sess);
+ else if (ret < 0) {
+ reject = true;
+ ret = CMDSN_ERROR_CANNOT_RECOVER;
+ }
break;
case CMDSN_HIGHER_THAN_EXP:
ret = iscsit_handle_ooo_cmdsn(conn->sess, cmd, be32_to_cpu(cmdsn));
+ if (ret < 0) {
+ reject = true;
+ ret = CMDSN_ERROR_CANNOT_RECOVER;
+ break;
+ }
+ ret = CMDSN_HIGHER_THAN_EXP;
break;
case CMDSN_LOWER_THAN_EXP:
cmd->i_state = ISTATE_REMOVE;
@@ -310,11 +318,16 @@ int iscsit_sequence_cmd(
ret = cmdsn_ret;
break;
default:
+ reason = ISCSI_REASON_PROTOCOL_ERROR;
+ reject = true;
ret = cmdsn_ret;
break;
}
mutex_unlock(&conn->sess->cmdsn_mutex);
+ if (reject)
+ iscsit_reject_cmd(cmd, reason, buf);
+
return ret;
}
EXPORT_SYMBOL(iscsit_sequence_cmd);
@@ -681,6 +694,7 @@ void iscsit_release_cmd(struct iscsi_cmd *cmd)
kfree(cmd->seq_list);
kfree(cmd->tmr_req);
kfree(cmd->iov_data);
+ kfree(cmd->text_in_ptr);
kmem_cache_free(lio_cmd_cache, cmd);
}
diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h
index a442265..e4fc34a 100644
--- a/drivers/target/iscsi/iscsi_target_util.h
+++ b/drivers/target/iscsi/iscsi_target_util.h
@@ -13,7 +13,8 @@ extern struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *, gfp_t);
extern struct iscsi_seq *iscsit_get_seq_holder_for_datain(struct iscsi_cmd *, u32);
extern struct iscsi_seq *iscsit_get_seq_holder_for_r2t(struct iscsi_cmd *);
extern struct iscsi_r2t *iscsit_get_holder_for_r2tsn(struct iscsi_cmd *, u32);
-int iscsit_sequence_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, __be32 cmdsn);
+extern int iscsit_sequence_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
+ unsigned char * ,__be32 cmdsn);
extern int iscsit_check_unsolicited_dataout(struct iscsi_cmd *, unsigned char *);
extern struct iscsi_cmd *iscsit_find_cmd_from_itt(struct iscsi_conn *, itt_t);
extern struct iscsi_cmd *iscsit_find_cmd_from_itt_or_dump(struct iscsi_conn *,
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 7c90814..568ad25 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -786,7 +786,7 @@ static int tcm_loop_queue_status(struct se_cmd *se_cmd)
return 0;
}
-static int tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd)
+static void tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd)
{
struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
struct tcm_loop_tmr *tl_tmr = se_tmr->fabric_tmr_ptr;
@@ -796,7 +796,6 @@ static int tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd)
*/
atomic_set(&tl_tmr->tmr_complete, 1);
wake_up(&tl_tmr->tl_tmr_wait);
- return 0;
}
static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba)
diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
index d3536f5..e51b09a 100644
--- a/drivers/target/sbp/sbp_target.c
+++ b/drivers/target/sbp/sbp_target.c
@@ -1842,9 +1842,8 @@ static int sbp_queue_status(struct se_cmd *se_cmd)
return sbp_send_sense(req);
}
-static int sbp_queue_tm_rsp(struct se_cmd *se_cmd)
+static void sbp_queue_tm_rsp(struct se_cmd *se_cmd)
{
- return 0;
}
static int sbp_check_stop_free(struct se_cmd *se_cmd)
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 4a8bd36..e4d2293 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -983,7 +983,6 @@ static ssize_t target_core_dev_pr_show_spc3_res(struct se_device *dev,
struct se_node_acl *se_nacl;
struct t10_pr_registration *pr_reg;
char i_buf[PR_REG_ISID_ID_LEN];
- int prf_isid;
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
@@ -992,12 +991,11 @@ static ssize_t target_core_dev_pr_show_spc3_res(struct se_device *dev,
return sprintf(page, "No SPC-3 Reservation holder\n");
se_nacl = pr_reg->pr_reg_nacl;
- prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0],
- PR_REG_ISID_ID_LEN);
+ core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
return sprintf(page, "SPC-3 Reservation: %s Initiator: %s%s\n",
se_nacl->se_tpg->se_tpg_tfo->get_fabric_name(),
- se_nacl->initiatorname, (prf_isid) ? &i_buf[0] : "");
+ se_nacl->initiatorname, i_buf);
}
static ssize_t target_core_dev_pr_show_spc2_res(struct se_device *dev,
@@ -1116,7 +1114,7 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_registered_i_pts(
unsigned char buf[384];
char i_buf[PR_REG_ISID_ID_LEN];
ssize_t len = 0;
- int reg_count = 0, prf_isid;
+ int reg_count = 0;
len += sprintf(page+len, "SPC-3 PR Registrations:\n");
@@ -1127,12 +1125,11 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_registered_i_pts(
memset(buf, 0, 384);
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
tfo = pr_reg->pr_reg_nacl->se_tpg->se_tpg_tfo;
- prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0],
+ core_pr_dump_initiator_port(pr_reg, i_buf,
PR_REG_ISID_ID_LEN);
sprintf(buf, "%s Node: %s%s Key: 0x%016Lx PRgen: 0x%08x\n",
tfo->get_fabric_name(),
- pr_reg->pr_reg_nacl->initiatorname, (prf_isid) ?
- &i_buf[0] : "", pr_reg->pr_res_key,
+ pr_reg->pr_reg_nacl->initiatorname, i_buf, pr_reg->pr_res_key,
pr_reg->pr_res_generation);
if (len + strlen(buf) >= PAGE_SIZE)
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 4630481..8f4142f 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -1410,7 +1410,6 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
INIT_LIST_HEAD(&dev->t10_alua.tg_pt_gps_list);
spin_lock_init(&dev->t10_alua.tg_pt_gps_lock);
- dev->t10_pr.pr_aptpl_buf_len = PR_APTPL_BUF_LEN;
dev->t10_wwn.t10_dev = dev;
dev->t10_alua.t10_dev = dev;
@@ -1545,7 +1544,7 @@ int core_dev_setup_virtual_lun0(void)
{
struct se_hba *hba;
struct se_device *dev;
- char buf[16];
+ char buf[] = "rd_pages=8,rd_nullio=1";
int ret;
hba = core_alloc_hba("rd_mcp", 0, HBA_FLAGS_INTERNAL_USE);
@@ -1558,8 +1557,6 @@ int core_dev_setup_virtual_lun0(void)
goto out_free_hba;
}
- memset(buf, 0, 16);
- sprintf(buf, "rd_pages=8");
hba->transport->set_configfs_dev_params(dev, buf, sizeof(buf));
ret = target_configure_device(dev);
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index 04c775c..eb56eb1 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -965,6 +965,19 @@ TF_CIT_SETUP(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL, NULL);
/* End of tfc_tpg_attrib_cit */
+/* Start of tfc_tpg_auth_cit */
+
+CONFIGFS_EATTR_OPS(target_fabric_tpg_auth, se_portal_group, tpg_auth_group);
+
+static struct configfs_item_operations target_fabric_tpg_auth_item_ops = {
+ .show_attribute = target_fabric_tpg_auth_attr_show,
+ .store_attribute = target_fabric_tpg_auth_attr_store,
+};
+
+TF_CIT_SETUP(tpg_auth, &target_fabric_tpg_auth_item_ops, NULL, NULL);
+
+/* End of tfc_tpg_attrib_cit */
+
/* Start of tfc_tpg_param_cit */
CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group);
@@ -1030,8 +1043,9 @@ static struct config_group *target_fabric_make_tpg(
se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group;
se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group;
se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group;
- se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_param_group;
- se_tpg->tpg_group.default_groups[5] = NULL;
+ se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_auth_group;
+ se_tpg->tpg_group.default_groups[5] = &se_tpg->tpg_param_group;
+ se_tpg->tpg_group.default_groups[6] = NULL;
config_group_init_type_name(&se_tpg->tpg_group, name,
&TF_CIT_TMPL(tf)->tfc_tpg_base_cit);
@@ -1043,6 +1057,8 @@ static struct config_group *target_fabric_make_tpg(
&TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit);
config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib",
&TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit);
+ config_group_init_type_name(&se_tpg->tpg_auth_group, "auth",
+ &TF_CIT_TMPL(tf)->tfc_tpg_auth_cit);
config_group_init_type_name(&se_tpg->tpg_param_group, "param",
&TF_CIT_TMPL(tf)->tfc_tpg_param_cit);
@@ -1202,6 +1218,7 @@ int target_fabric_setup_cits(struct target_fabric_configfs *tf)
target_fabric_setup_tpg_np_cit(tf);
target_fabric_setup_tpg_np_base_cit(tf);
target_fabric_setup_tpg_attrib_cit(tf);
+ target_fabric_setup_tpg_auth_cit(tf);
target_fabric_setup_tpg_param_cit(tf);
target_fabric_setup_tpg_nacl_cit(tf);
target_fabric_setup_tpg_nacl_base_cit(tf);
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 3240f2c..bd78faf 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -53,18 +53,28 @@ struct pr_transport_id_holder {
struct list_head dest_list;
};
-int core_pr_dump_initiator_port(
+void core_pr_dump_initiator_port(
struct t10_pr_registration *pr_reg,
char *buf,
u32 size)
{
if (!pr_reg->isid_present_at_reg)
- return 0;
+ buf[0] = '\0';
- snprintf(buf, size, ",i,0x%s", &pr_reg->pr_reg_isid[0]);
- return 1;
+ snprintf(buf, size, ",i,0x%s", pr_reg->pr_reg_isid);
}
+enum register_type {
+ REGISTER,
+ REGISTER_AND_IGNORE_EXISTING_KEY,
+ REGISTER_AND_MOVE,
+};
+
+enum preempt_type {
+ PREEMPT,
+ PREEMPT_AND_ABORT,
+};
+
static void __core_scsi3_complete_pro_release(struct se_device *, struct se_node_acl *,
struct t10_pr_registration *, int);
@@ -596,14 +606,6 @@ static struct t10_pr_registration *__core_scsi3_do_alloc_registration(
return NULL;
}
- pr_reg->pr_aptpl_buf = kzalloc(dev->t10_pr.pr_aptpl_buf_len,
- GFP_ATOMIC);
- if (!pr_reg->pr_aptpl_buf) {
- pr_err("Unable to allocate pr_reg->pr_aptpl_buf\n");
- kmem_cache_free(t10_pr_reg_cache, pr_reg);
- return NULL;
- }
-
INIT_LIST_HEAD(&pr_reg->pr_reg_list);
INIT_LIST_HEAD(&pr_reg->pr_reg_abort_list);
INIT_LIST_HEAD(&pr_reg->pr_reg_aptpl_list);
@@ -794,7 +796,6 @@ int core_scsi3_alloc_aptpl_registration(
pr_err("Unable to allocate struct t10_pr_registration\n");
return -ENOMEM;
}
- pr_reg->pr_aptpl_buf = kzalloc(pr_tmpl->pr_aptpl_buf_len, GFP_KERNEL);
INIT_LIST_HEAD(&pr_reg->pr_reg_list);
INIT_LIST_HEAD(&pr_reg->pr_reg_abort_list);
@@ -848,11 +849,9 @@ static void core_scsi3_aptpl_reserve(
struct t10_pr_registration *pr_reg)
{
char i_buf[PR_REG_ISID_ID_LEN];
- int prf_isid;
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
- prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0],
- PR_REG_ISID_ID_LEN);
+ core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
spin_lock(&dev->dev_reservation_lock);
dev->dev_pr_res_holder = pr_reg;
@@ -865,11 +864,11 @@ static void core_scsi3_aptpl_reserve(
(pr_reg->pr_reg_all_tg_pt) ? 1 : 0);
pr_debug("SPC-3 PR [%s] RESERVE Node: %s%s\n",
tpg->se_tpg_tfo->get_fabric_name(), node_acl->initiatorname,
- (prf_isid) ? &i_buf[0] : "");
+ i_buf);
}
static void __core_scsi3_add_registration(struct se_device *, struct se_node_acl *,
- struct t10_pr_registration *, int, int);
+ struct t10_pr_registration *, enum register_type, int);
static int __core_scsi3_check_aptpl_registration(
struct se_device *dev,
@@ -962,21 +961,19 @@ static void __core_scsi3_dump_registration(
struct se_device *dev,
struct se_node_acl *nacl,
struct t10_pr_registration *pr_reg,
- int register_type)
+ enum register_type register_type)
{
struct se_portal_group *se_tpg = nacl->se_tpg;
char i_buf[PR_REG_ISID_ID_LEN];
- int prf_isid;
memset(&i_buf[0], 0, PR_REG_ISID_ID_LEN);
- prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0],
- PR_REG_ISID_ID_LEN);
+ core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
pr_debug("SPC-3 PR [%s] Service Action: REGISTER%s Initiator"
- " Node: %s%s\n", tfo->get_fabric_name(), (register_type == 2) ?
- "_AND_MOVE" : (register_type == 1) ?
+ " Node: %s%s\n", tfo->get_fabric_name(), (register_type == REGISTER_AND_MOVE) ?
+ "_AND_MOVE" : (register_type == REGISTER_AND_IGNORE_EXISTING_KEY) ?
"_AND_IGNORE_EXISTING_KEY" : "", nacl->initiatorname,
- (prf_isid) ? i_buf : "");
+ i_buf);
pr_debug("SPC-3 PR [%s] registration on Target Port: %s,0x%04x\n",
tfo->get_fabric_name(), tfo->tpg_get_wwn(se_tpg),
tfo->tpg_get_tag(se_tpg));
@@ -998,7 +995,7 @@ static void __core_scsi3_add_registration(
struct se_device *dev,
struct se_node_acl *nacl,
struct t10_pr_registration *pr_reg,
- int register_type,
+ enum register_type register_type,
int register_move)
{
struct target_core_fabric_ops *tfo = nacl->se_tpg->se_tpg_tfo;
@@ -1064,7 +1061,7 @@ static int core_scsi3_alloc_registration(
u64 sa_res_key,
int all_tg_pt,
int aptpl,
- int register_type,
+ enum register_type register_type,
int register_move)
{
struct t10_pr_registration *pr_reg;
@@ -1225,11 +1222,9 @@ static void __core_scsi3_free_registration(
pr_reg->pr_reg_nacl->se_tpg->se_tpg_tfo;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
char i_buf[PR_REG_ISID_ID_LEN];
- int prf_isid;
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
- prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0],
- PR_REG_ISID_ID_LEN);
+ core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
pr_reg->pr_reg_deve->def_pr_registered = 0;
pr_reg->pr_reg_deve->pr_res_key = 0;
@@ -1257,7 +1252,7 @@ static void __core_scsi3_free_registration(
pr_debug("SPC-3 PR [%s] Service Action: UNREGISTER Initiator"
" Node: %s%s\n", tfo->get_fabric_name(),
pr_reg->pr_reg_nacl->initiatorname,
- (prf_isid) ? &i_buf[0] : "");
+ i_buf);
pr_debug("SPC-3 PR [%s] for %s TCM Subsystem %s Object Target"
" Port(s)\n", tfo->get_fabric_name(),
(pr_reg->pr_reg_all_tg_pt) ? "ALL" : "SINGLE",
@@ -1269,7 +1264,6 @@ static void __core_scsi3_free_registration(
if (!preempt_and_abort_list) {
pr_reg->pr_reg_deve = NULL;
pr_reg->pr_reg_nacl = NULL;
- kfree(pr_reg->pr_aptpl_buf);
kmem_cache_free(t10_pr_reg_cache, pr_reg);
return;
}
@@ -1338,7 +1332,6 @@ void core_scsi3_free_all_registrations(
list_for_each_entry_safe(pr_reg, pr_reg_tmp, &pr_tmpl->aptpl_reg_list,
pr_reg_aptpl_list) {
list_del(&pr_reg->pr_reg_aptpl_list);
- kfree(pr_reg->pr_aptpl_buf);
kmem_cache_free(t10_pr_reg_cache, pr_reg);
}
spin_unlock(&pr_tmpl->aptpl_reg_lock);
@@ -1453,7 +1446,7 @@ core_scsi3_decode_spec_i_port(
char *iport_ptr = NULL, dest_iport[64], i_buf[PR_REG_ISID_ID_LEN];
sense_reason_t ret;
u32 tpdl, tid_len = 0;
- int dest_local_nexus, prf_isid;
+ int dest_local_nexus;
u32 dest_rtpi = 0;
memset(dest_iport, 0, 64);
@@ -1764,8 +1757,7 @@ core_scsi3_decode_spec_i_port(
kfree(tidh);
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
- prf_isid = core_pr_dump_initiator_port(dest_pr_reg, &i_buf[0],
- PR_REG_ISID_ID_LEN);
+ core_pr_dump_initiator_port(dest_pr_reg, i_buf, PR_REG_ISID_ID_LEN);
__core_scsi3_add_registration(cmd->se_dev, dest_node_acl,
dest_pr_reg, 0, 0);
@@ -1773,8 +1765,7 @@ core_scsi3_decode_spec_i_port(
pr_debug("SPC-3 PR [%s] SPEC_I_PT: Successfully"
" registered Transport ID for Node: %s%s Mapped LUN:"
" %u\n", dest_tpg->se_tpg_tfo->get_fabric_name(),
- dest_node_acl->initiatorname, (prf_isid) ?
- &i_buf[0] : "", dest_se_deve->mapped_lun);
+ dest_node_acl->initiatorname, i_buf, dest_se_deve->mapped_lun);
if (dest_local_nexus)
continue;
@@ -1813,7 +1804,6 @@ out:
kmem_cache_free(t10_pr_reg_cache, pr_reg_tmp);
}
- kfree(dest_pr_reg->pr_aptpl_buf);
kmem_cache_free(t10_pr_reg_cache, dest_pr_reg);
if (dest_local_nexus)
@@ -1826,14 +1816,10 @@ out:
return ret;
}
-/*
- * Called with struct se_device->dev_reservation_lock held
- */
-static int __core_scsi3_update_aptpl_buf(
+static int core_scsi3_update_aptpl_buf(
struct se_device *dev,
unsigned char *buf,
- u32 pr_aptpl_buf_len,
- int clear_aptpl_metadata)
+ u32 pr_aptpl_buf_len)
{
struct se_lun *lun;
struct se_portal_group *tpg;
@@ -1841,20 +1827,13 @@ static int __core_scsi3_update_aptpl_buf(
unsigned char tmp[512], isid_buf[32];
ssize_t len = 0;
int reg_count = 0;
+ int ret = 0;
- memset(buf, 0, pr_aptpl_buf_len);
- /*
- * Called to clear metadata once APTPL has been deactivated.
- */
- if (clear_aptpl_metadata) {
- snprintf(buf, pr_aptpl_buf_len,
- "No Registrations or Reservations\n");
- return 0;
- }
+ spin_lock(&dev->dev_reservation_lock);
+ spin_lock(&dev->t10_pr.registration_lock);
/*
* Walk the registration list..
*/
- spin_lock(&dev->t10_pr.registration_lock);
list_for_each_entry(pr_reg, &dev->t10_pr.registration_list,
pr_reg_list) {
@@ -1900,8 +1879,8 @@ static int __core_scsi3_update_aptpl_buf(
if ((len + strlen(tmp) >= pr_aptpl_buf_len)) {
pr_err("Unable to update renaming"
" APTPL metadata\n");
- spin_unlock(&dev->t10_pr.registration_lock);
- return -EMSGSIZE;
+ ret = -EMSGSIZE;
+ goto out;
}
len += sprintf(buf+len, "%s", tmp);
@@ -1918,48 +1897,32 @@ static int __core_scsi3_update_aptpl_buf(
if ((len + strlen(tmp) >= pr_aptpl_buf_len)) {
pr_err("Unable to update renaming"
" APTPL metadata\n");
- spin_unlock(&dev->t10_pr.registration_lock);
- return -EMSGSIZE;
+ ret = -EMSGSIZE;
+ goto out;
}
len += sprintf(buf+len, "%s", tmp);
reg_count++;
}
- spin_unlock(&dev->t10_pr.registration_lock);
if (!reg_count)
len += sprintf(buf+len, "No Registrations or Reservations");
- return 0;
-}
-
-static int core_scsi3_update_aptpl_buf(
- struct se_device *dev,
- unsigned char *buf,
- u32 pr_aptpl_buf_len,
- int clear_aptpl_metadata)
-{
- int ret;
-
- spin_lock(&dev->dev_reservation_lock);
- ret = __core_scsi3_update_aptpl_buf(dev, buf, pr_aptpl_buf_len,
- clear_aptpl_metadata);
+out:
+ spin_unlock(&dev->t10_pr.registration_lock);
spin_unlock(&dev->dev_reservation_lock);
return ret;
}
-/*
- * Called with struct se_device->aptpl_file_mutex held
- */
static int __core_scsi3_write_aptpl_to_file(
struct se_device *dev,
- unsigned char *buf,
- u32 pr_aptpl_buf_len)
+ unsigned char *buf)
{
struct t10_wwn *wwn = &dev->t10_wwn;
struct file *file;
int flags = O_RDWR | O_CREAT | O_TRUNC;
char path[512];
+ u32 pr_aptpl_buf_len;
int ret;
memset(path, 0, 512);
@@ -1978,8 +1941,7 @@ static int __core_scsi3_write_aptpl_to_file(
return PTR_ERR(file);
}
- if (!pr_aptpl_buf_len)
- pr_aptpl_buf_len = (strlen(&buf[0]) + 1); /* Add extra for NULL */
+ pr_aptpl_buf_len = (strlen(buf) + 1); /* Add extra for NULL */
ret = kernel_write(file, buf, pr_aptpl_buf_len, 0);
@@ -1990,60 +1952,64 @@ static int __core_scsi3_write_aptpl_to_file(
return ret ? -EIO : 0;
}
-static int
-core_scsi3_update_and_write_aptpl(struct se_device *dev, unsigned char *in_buf,
- u32 in_pr_aptpl_buf_len)
+/*
+ * Clear the APTPL metadata if APTPL has been disabled, otherwise
+ * write out the updated metadata to struct file for this SCSI device.
+ */
+static sense_reason_t core_scsi3_update_and_write_aptpl(struct se_device *dev, bool aptpl)
{
- unsigned char null_buf[64], *buf;
- u32 pr_aptpl_buf_len;
- int clear_aptpl_metadata = 0;
- int ret;
+ unsigned char *buf;
+ int rc;
- /*
- * Can be called with a NULL pointer from PROUT service action CLEAR
- */
- if (!in_buf) {
- memset(null_buf, 0, 64);
- buf = &null_buf[0];
- /*
- * This will clear the APTPL metadata to:
- * "No Registrations or Reservations" status
- */
- pr_aptpl_buf_len = 64;
- clear_aptpl_metadata = 1;
- } else {
- buf = in_buf;
- pr_aptpl_buf_len = in_pr_aptpl_buf_len;
+ if (!aptpl) {
+ char *null_buf = "No Registrations or Reservations\n";
+
+ rc = __core_scsi3_write_aptpl_to_file(dev, null_buf);
+ dev->t10_pr.pr_aptpl_active = 0;
+ pr_debug("SPC-3 PR: Set APTPL Bit Deactivated\n");
+
+ if (rc)
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+
+ return 0;
}
- ret = core_scsi3_update_aptpl_buf(dev, buf, pr_aptpl_buf_len,
- clear_aptpl_metadata);
- if (ret != 0)
- return ret;
+ buf = kzalloc(PR_APTPL_BUF_LEN, GFP_KERNEL);
+ if (!buf)
+ return TCM_OUT_OF_RESOURCES;
- /*
- * __core_scsi3_write_aptpl_to_file() will call strlen()
- * on the passed buf to determine pr_aptpl_buf_len.
- */
- return __core_scsi3_write_aptpl_to_file(dev, buf, 0);
+ rc = core_scsi3_update_aptpl_buf(dev, buf, PR_APTPL_BUF_LEN);
+ if (rc < 0) {
+ kfree(buf);
+ return TCM_OUT_OF_RESOURCES;
+ }
+
+ rc = __core_scsi3_write_aptpl_to_file(dev, buf);
+ if (rc != 0) {
+ pr_err("SPC-3 PR: Could not update APTPL\n");
+ kfree(buf);
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ }
+ dev->t10_pr.pr_aptpl_active = 1;
+ kfree(buf);
+ pr_debug("SPC-3 PR: Set APTPL Bit Activated\n");
+ return 0;
}
static sense_reason_t
core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
- int aptpl, int all_tg_pt, int spec_i_pt, int ignore_key)
+ bool aptpl, bool all_tg_pt, bool spec_i_pt, enum register_type register_type)
{
struct se_session *se_sess = cmd->se_sess;
struct se_device *dev = cmd->se_dev;
struct se_dev_entry *se_deve;
struct se_lun *se_lun = cmd->se_lun;
struct se_portal_group *se_tpg;
- struct t10_pr_registration *pr_reg, *pr_reg_p, *pr_reg_tmp, *pr_reg_e;
+ struct t10_pr_registration *pr_reg, *pr_reg_p, *pr_reg_tmp;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
- /* Used for APTPL metadata w/ UNREGISTER */
- unsigned char *pr_aptpl_buf = NULL;
unsigned char isid_buf[PR_REG_ISID_LEN], *isid_ptr = NULL;
sense_reason_t ret = TCM_NO_SENSE;
- int pr_holder = 0, type;
+ int pr_holder = 0;
if (!se_sess || !se_lun) {
pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n");
@@ -2061,8 +2027,8 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
/*
* Follow logic from spc4r17 Section 5.7.7, Register Behaviors Table 47
*/
- pr_reg_e = core_scsi3_locate_pr_reg(dev, se_sess->se_node_acl, se_sess);
- if (!pr_reg_e) {
+ pr_reg = core_scsi3_locate_pr_reg(dev, se_sess->se_node_acl, se_sess);
+ if (!pr_reg) {
if (res_key) {
pr_warn("SPC-3 PR: Reservation Key non-zero"
" for SA REGISTER, returning CONFLICT\n");
@@ -2083,7 +2049,7 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
if (core_scsi3_alloc_registration(cmd->se_dev,
se_sess->se_node_acl, se_deve, isid_ptr,
sa_res_key, all_tg_pt, aptpl,
- ignore_key, 0)) {
+ register_type, 0)) {
pr_err("Unable to allocate"
" struct t10_pr_registration\n");
return TCM_INVALID_PARAMETER_LIST;
@@ -2102,97 +2068,68 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
if (ret != 0)
return ret;
}
- /*
- * Nothing left to do for the APTPL=0 case.
- */
- if (!aptpl) {
- pr_tmpl->pr_aptpl_active = 0;
- core_scsi3_update_and_write_aptpl(cmd->se_dev, NULL, 0);
- pr_debug("SPC-3 PR: Set APTPL Bit Deactivated for"
- " REGISTER\n");
- return 0;
- }
- /*
- * Locate the newly allocated local I_T Nexus *pr_reg, and
- * update the APTPL metadata information using its
- * preallocated *pr_reg->pr_aptpl_buf.
- */
- pr_reg = core_scsi3_locate_pr_reg(cmd->se_dev,
- se_sess->se_node_acl, se_sess);
-
- if (core_scsi3_update_and_write_aptpl(cmd->se_dev,
- &pr_reg->pr_aptpl_buf[0],
- pr_tmpl->pr_aptpl_buf_len)) {
- pr_tmpl->pr_aptpl_active = 1;
- pr_debug("SPC-3 PR: Set APTPL Bit Activated for REGISTER\n");
- }
- goto out_put_pr_reg;
+ return core_scsi3_update_and_write_aptpl(dev, aptpl);
}
- /*
- * Locate the existing *pr_reg via struct se_node_acl pointers
- */
- pr_reg = pr_reg_e;
- type = pr_reg->pr_res_type;
-
- if (!ignore_key) {
- if (res_key != pr_reg->pr_res_key) {
- pr_err("SPC-3 PR REGISTER: Received"
- " res_key: 0x%016Lx does not match"
- " existing SA REGISTER res_key:"
- " 0x%016Lx\n", res_key,
- pr_reg->pr_res_key);
- ret = TCM_RESERVATION_CONFLICT;
- goto out_put_pr_reg;
- }
+ /* ok, existing registration */
+
+ if ((register_type == REGISTER) && (res_key != pr_reg->pr_res_key)) {
+ pr_err("SPC-3 PR REGISTER: Received"
+ " res_key: 0x%016Lx does not match"
+ " existing SA REGISTER res_key:"
+ " 0x%016Lx\n", res_key,
+ pr_reg->pr_res_key);
+ ret = TCM_RESERVATION_CONFLICT;
+ goto out;
}
if (spec_i_pt) {
- pr_err("SPC-3 PR UNREGISTER: SPEC_I_PT"
- " set while sa_res_key=0\n");
+ pr_err("SPC-3 PR REGISTER: SPEC_I_PT"
+ " set on a registered nexus\n");
ret = TCM_INVALID_PARAMETER_LIST;
- goto out_put_pr_reg;
+ goto out;
}
/*
* An existing ALL_TG_PT=1 registration being released
* must also set ALL_TG_PT=1 in the incoming PROUT.
*/
- if (pr_reg->pr_reg_all_tg_pt && !(all_tg_pt)) {
- pr_err("SPC-3 PR UNREGISTER: ALL_TG_PT=1"
+ if (pr_reg->pr_reg_all_tg_pt && !all_tg_pt) {
+ pr_err("SPC-3 PR REGISTER: ALL_TG_PT=1"
" registration exists, but ALL_TG_PT=1 bit not"
" present in received PROUT\n");
ret = TCM_INVALID_CDB_FIELD;
- goto out_put_pr_reg;
+ goto out;
}
/*
- * Allocate APTPL metadata buffer used for UNREGISTER ops
+ * sa_res_key=1 Change Reservation Key for registered I_T Nexus.
*/
- if (aptpl) {
- pr_aptpl_buf = kzalloc(pr_tmpl->pr_aptpl_buf_len,
- GFP_KERNEL);
- if (!pr_aptpl_buf) {
- pr_err("Unable to allocate"
- " pr_aptpl_buf\n");
- ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- goto out_put_pr_reg;
- }
- }
+ if (sa_res_key) {
+ /*
+ * Increment PRgeneration counter for struct se_device"
+ * upon a successful REGISTER, see spc4r17 section 6.3.2
+ * READ_KEYS service action.
+ */
+ pr_reg->pr_res_generation = core_scsi3_pr_generation(cmd->se_dev);
+ pr_reg->pr_res_key = sa_res_key;
+ pr_debug("SPC-3 PR [%s] REGISTER%s: Changed Reservation"
+ " Key for %s to: 0x%016Lx PRgeneration:"
+ " 0x%08x\n", cmd->se_tfo->get_fabric_name(),
+ (register_type == REGISTER_AND_IGNORE_EXISTING_KEY) ? "_AND_IGNORE_EXISTING_KEY" : "",
+ pr_reg->pr_reg_nacl->initiatorname,
+ pr_reg->pr_res_key, pr_reg->pr_res_generation);
- /*
- * sa_res_key=0 Unregister Reservation Key for registered I_T
- * Nexus sa_res_key=1 Change Reservation Key for registered I_T
- * Nexus.
- */
- if (!sa_res_key) {
+ } else {
+ /*
+ * sa_res_key=0 Unregister Reservation Key for registered I_T Nexus.
+ */
pr_holder = core_scsi3_check_implict_release(
cmd->se_dev, pr_reg);
if (pr_holder < 0) {
- kfree(pr_aptpl_buf);
ret = TCM_RESERVATION_CONFLICT;
- goto out_put_pr_reg;
+ goto out;
}
spin_lock(&pr_tmpl->registration_lock);
@@ -2237,8 +2174,8 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
* RESERVATIONS RELEASED.
*/
if (pr_holder &&
- (type == PR_TYPE_WRITE_EXCLUSIVE_REGONLY ||
- type == PR_TYPE_EXCLUSIVE_ACCESS_REGONLY)) {
+ (pr_reg->pr_res_type == PR_TYPE_WRITE_EXCLUSIVE_REGONLY ||
+ pr_reg->pr_res_type == PR_TYPE_EXCLUSIVE_ACCESS_REGONLY)) {
list_for_each_entry(pr_reg_p,
&pr_tmpl->registration_list,
pr_reg_list) {
@@ -2250,60 +2187,13 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
ASCQ_2AH_RESERVATIONS_RELEASED);
}
}
- spin_unlock(&pr_tmpl->registration_lock);
-
- if (!aptpl) {
- pr_tmpl->pr_aptpl_active = 0;
- core_scsi3_update_and_write_aptpl(dev, NULL, 0);
- pr_debug("SPC-3 PR: Set APTPL Bit Deactivated"
- " for UNREGISTER\n");
- return 0;
- }
- if (!core_scsi3_update_and_write_aptpl(dev, &pr_aptpl_buf[0],
- pr_tmpl->pr_aptpl_buf_len)) {
- pr_tmpl->pr_aptpl_active = 1;
- pr_debug("SPC-3 PR: Set APTPL Bit Activated"
- " for UNREGISTER\n");
- }
-
- goto out_free_aptpl_buf;
- }
-
- /*
- * Increment PRgeneration counter for struct se_device"
- * upon a successful REGISTER, see spc4r17 section 6.3.2
- * READ_KEYS service action.
- */
- pr_reg->pr_res_generation = core_scsi3_pr_generation(cmd->se_dev);
- pr_reg->pr_res_key = sa_res_key;
- pr_debug("SPC-3 PR [%s] REGISTER%s: Changed Reservation"
- " Key for %s to: 0x%016Lx PRgeneration:"
- " 0x%08x\n", cmd->se_tfo->get_fabric_name(),
- (ignore_key) ? "_AND_IGNORE_EXISTING_KEY" : "",
- pr_reg->pr_reg_nacl->initiatorname,
- pr_reg->pr_res_key, pr_reg->pr_res_generation);
-
- if (!aptpl) {
- pr_tmpl->pr_aptpl_active = 0;
- core_scsi3_update_and_write_aptpl(dev, NULL, 0);
- pr_debug("SPC-3 PR: Set APTPL Bit Deactivated"
- " for REGISTER\n");
- ret = 0;
- goto out_put_pr_reg;
+ spin_unlock(&pr_tmpl->registration_lock);
}
- if (!core_scsi3_update_and_write_aptpl(dev, &pr_aptpl_buf[0],
- pr_tmpl->pr_aptpl_buf_len)) {
- pr_tmpl->pr_aptpl_active = 1;
- pr_debug("SPC-3 PR: Set APTPL Bit Activated"
- " for REGISTER\n");
- }
+ ret = core_scsi3_update_and_write_aptpl(dev, aptpl);
-out_free_aptpl_buf:
- kfree(pr_aptpl_buf);
- ret = 0;
-out_put_pr_reg:
+out:
core_scsi3_put_pr_reg(pr_reg);
return ret;
}
@@ -2340,7 +2230,6 @@ core_scsi3_pro_reserve(struct se_cmd *cmd, int type, int scope, u64 res_key)
struct t10_reservation *pr_tmpl = &dev->t10_pr;
char i_buf[PR_REG_ISID_ID_LEN];
sense_reason_t ret;
- int prf_isid;
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
@@ -2466,8 +2355,7 @@ core_scsi3_pro_reserve(struct se_cmd *cmd, int type, int scope, u64 res_key)
pr_reg->pr_res_type = type;
pr_reg->pr_res_holder = 1;
dev->dev_pr_res_holder = pr_reg;
- prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0],
- PR_REG_ISID_ID_LEN);
+ core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
pr_debug("SPC-3 PR [%s] Service Action: RESERVE created new"
" reservation holder TYPE: %s ALL_TG_PT: %d\n",
@@ -2476,17 +2364,11 @@ core_scsi3_pro_reserve(struct se_cmd *cmd, int type, int scope, u64 res_key)
pr_debug("SPC-3 PR [%s] RESERVE Node: %s%s\n",
cmd->se_tfo->get_fabric_name(),
se_sess->se_node_acl->initiatorname,
- (prf_isid) ? &i_buf[0] : "");
+ i_buf);
spin_unlock(&dev->dev_reservation_lock);
- if (pr_tmpl->pr_aptpl_active) {
- if (!core_scsi3_update_and_write_aptpl(cmd->se_dev,
- &pr_reg->pr_aptpl_buf[0],
- pr_tmpl->pr_aptpl_buf_len)) {
- pr_debug("SPC-3 PR: Updated APTPL metadata"
- " for RESERVE\n");
- }
- }
+ if (pr_tmpl->pr_aptpl_active)
+ core_scsi3_update_and_write_aptpl(cmd->se_dev, true);
ret = 0;
out_put_pr_reg:
@@ -2524,11 +2406,9 @@ static void __core_scsi3_complete_pro_release(
{
struct target_core_fabric_ops *tfo = se_nacl->se_tpg->se_tpg_tfo;
char i_buf[PR_REG_ISID_ID_LEN];
- int prf_isid;
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
- prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0],
- PR_REG_ISID_ID_LEN);
+ core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
/*
* Go ahead and release the current PR reservation holder.
*/
@@ -2541,7 +2421,7 @@ static void __core_scsi3_complete_pro_release(
(pr_reg->pr_reg_all_tg_pt) ? 1 : 0);
pr_debug("SPC-3 PR [%s] RELEASE Node: %s%s\n",
tfo->get_fabric_name(), se_nacl->initiatorname,
- (prf_isid) ? &i_buf[0] : "");
+ i_buf);
/*
* Clear TYPE and SCOPE for the next PROUT Service Action: RESERVE
*/
@@ -2702,12 +2582,9 @@ core_scsi3_emulate_pro_release(struct se_cmd *cmd, int type, int scope,
spin_unlock(&pr_tmpl->registration_lock);
write_aptpl:
- if (pr_tmpl->pr_aptpl_active) {
- if (!core_scsi3_update_and_write_aptpl(cmd->se_dev,
- &pr_reg->pr_aptpl_buf[0], pr_tmpl->pr_aptpl_buf_len)) {
- pr_debug("SPC-3 PR: Updated APTPL metadata for RELEASE\n");
- }
- }
+ if (pr_tmpl->pr_aptpl_active)
+ core_scsi3_update_and_write_aptpl(cmd->se_dev, true);
+
out_put_pr_reg:
core_scsi3_put_pr_reg(pr_reg);
return ret;
@@ -2791,11 +2668,7 @@ core_scsi3_emulate_pro_clear(struct se_cmd *cmd, u64 res_key)
pr_debug("SPC-3 PR [%s] Service Action: CLEAR complete\n",
cmd->se_tfo->get_fabric_name());
- if (pr_tmpl->pr_aptpl_active) {
- core_scsi3_update_and_write_aptpl(cmd->se_dev, NULL, 0);
- pr_debug("SPC-3 PR: Updated APTPL metadata"
- " for CLEAR\n");
- }
+ core_scsi3_update_and_write_aptpl(cmd->se_dev, false);
core_scsi3_pr_generation(dev);
return 0;
@@ -2810,16 +2683,14 @@ static void __core_scsi3_complete_pro_preempt(
struct list_head *preempt_and_abort_list,
int type,
int scope,
- int abort)
+ enum preempt_type preempt_type)
{
struct se_node_acl *nacl = pr_reg->pr_reg_nacl;
struct target_core_fabric_ops *tfo = nacl->se_tpg->se_tpg_tfo;
char i_buf[PR_REG_ISID_ID_LEN];
- int prf_isid;
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
- prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0],
- PR_REG_ISID_ID_LEN);
+ core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
/*
* Do an implict RELEASE of the existing reservation.
*/
@@ -2834,12 +2705,12 @@ static void __core_scsi3_complete_pro_preempt(
pr_debug("SPC-3 PR [%s] Service Action: PREEMPT%s created new"
" reservation holder TYPE: %s ALL_TG_PT: %d\n",
- tfo->get_fabric_name(), (abort) ? "_AND_ABORT" : "",
+ tfo->get_fabric_name(), (preempt_type == PREEMPT_AND_ABORT) ? "_AND_ABORT" : "",
core_scsi3_pr_dump_type(type),
(pr_reg->pr_reg_all_tg_pt) ? 1 : 0);
pr_debug("SPC-3 PR [%s] PREEMPT%s from Node: %s%s\n",
- tfo->get_fabric_name(), (abort) ? "_AND_ABORT" : "",
- nacl->initiatorname, (prf_isid) ? &i_buf[0] : "");
+ tfo->get_fabric_name(), (preempt_type == PREEMPT_AND_ABORT) ? "_AND_ABORT" : "",
+ nacl->initiatorname, i_buf);
/*
* For PREEMPT_AND_ABORT, add the preempting reservation's
* struct t10_pr_registration to the list that will be compared
@@ -2869,14 +2740,13 @@ static void core_scsi3_release_preempt_and_abort(
pr_reg->pr_reg_deve = NULL;
pr_reg->pr_reg_nacl = NULL;
- kfree(pr_reg->pr_aptpl_buf);
kmem_cache_free(t10_pr_reg_cache, pr_reg);
}
}
static sense_reason_t
core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
- u64 sa_res_key, int abort)
+ u64 sa_res_key, enum preempt_type preempt_type)
{
struct se_device *dev = cmd->se_dev;
struct se_node_acl *pr_reg_nacl;
@@ -2896,7 +2766,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
if (!pr_reg_n) {
pr_err("SPC-3 PR: Unable to locate"
" PR_REGISTERED *pr_reg for PREEMPT%s\n",
- (abort) ? "_AND_ABORT" : "");
+ (preempt_type == PREEMPT_AND_ABORT) ? "_AND_ABORT" : "");
return TCM_RESERVATION_CONFLICT;
}
if (pr_reg_n->pr_res_key != res_key) {
@@ -2965,7 +2835,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
pr_reg_nacl = pr_reg->pr_reg_nacl;
pr_res_mapped_lun = pr_reg->pr_res_mapped_lun;
__core_scsi3_free_registration(dev, pr_reg,
- (abort) ? &preempt_and_abort_list :
+ (preempt_type == PREEMPT_AND_ABORT) ? &preempt_and_abort_list :
NULL, calling_it_nexus);
released_regs++;
} else {
@@ -2993,7 +2863,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
pr_reg_nacl = pr_reg->pr_reg_nacl;
pr_res_mapped_lun = pr_reg->pr_res_mapped_lun;
__core_scsi3_free_registration(dev, pr_reg,
- (abort) ? &preempt_and_abort_list :
+ (preempt_type == PREEMPT_AND_ABORT) ? &preempt_and_abort_list :
NULL, 0);
released_regs++;
}
@@ -3022,24 +2892,17 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
*/
if (pr_res_holder && all_reg && !(sa_res_key)) {
__core_scsi3_complete_pro_preempt(dev, pr_reg_n,
- (abort) ? &preempt_and_abort_list : NULL,
- type, scope, abort);
+ (preempt_type == PREEMPT_AND_ABORT) ? &preempt_and_abort_list : NULL,
+ type, scope, preempt_type);
- if (abort)
+ if (preempt_type == PREEMPT_AND_ABORT)
core_scsi3_release_preempt_and_abort(
&preempt_and_abort_list, pr_reg_n);
}
spin_unlock(&dev->dev_reservation_lock);
- if (pr_tmpl->pr_aptpl_active) {
- if (!core_scsi3_update_and_write_aptpl(cmd->se_dev,
- &pr_reg_n->pr_aptpl_buf[0],
- pr_tmpl->pr_aptpl_buf_len)) {
- pr_debug("SPC-3 PR: Updated APTPL"
- " metadata for PREEMPT%s\n", (abort) ?
- "_AND_ABORT" : "");
- }
- }
+ if (pr_tmpl->pr_aptpl_active)
+ core_scsi3_update_and_write_aptpl(cmd->se_dev, true);
core_scsi3_put_pr_reg(pr_reg_n);
core_scsi3_pr_generation(cmd->se_dev);
@@ -3103,7 +2966,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
pr_reg_nacl = pr_reg->pr_reg_nacl;
pr_res_mapped_lun = pr_reg->pr_res_mapped_lun;
__core_scsi3_free_registration(dev, pr_reg,
- (abort) ? &preempt_and_abort_list : NULL,
+ (preempt_type == PREEMPT_AND_ABORT) ? &preempt_and_abort_list : NULL,
calling_it_nexus);
/*
* e) Establish a unit attention condition for the initiator
@@ -3120,8 +2983,8 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
* I_T nexus using the contents of the SCOPE and TYPE fields;
*/
__core_scsi3_complete_pro_preempt(dev, pr_reg_n,
- (abort) ? &preempt_and_abort_list : NULL,
- type, scope, abort);
+ (preempt_type == PREEMPT_AND_ABORT) ? &preempt_and_abort_list : NULL,
+ type, scope, preempt_type);
/*
* d) Process tasks as defined in 5.7.1;
* e) See above..
@@ -3161,20 +3024,14 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
* been removed from the primary pr_reg list), except the
* new persistent reservation holder, the calling Initiator Port.
*/
- if (abort) {
+ if (preempt_type == PREEMPT_AND_ABORT) {
core_tmr_lun_reset(dev, NULL, &preempt_and_abort_list, cmd);
core_scsi3_release_preempt_and_abort(&preempt_and_abort_list,
pr_reg_n);
}
- if (pr_tmpl->pr_aptpl_active) {
- if (!core_scsi3_update_and_write_aptpl(cmd->se_dev,
- &pr_reg_n->pr_aptpl_buf[0],
- pr_tmpl->pr_aptpl_buf_len)) {
- pr_debug("SPC-3 PR: Updated APTPL metadata for PREEMPT"
- "%s\n", abort ? "_AND_ABORT" : "");
- }
- }
+ if (pr_tmpl->pr_aptpl_active)
+ core_scsi3_update_and_write_aptpl(cmd->se_dev, true);
core_scsi3_put_pr_reg(pr_reg_n);
core_scsi3_pr_generation(cmd->se_dev);
@@ -3183,7 +3040,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
static sense_reason_t
core_scsi3_emulate_pro_preempt(struct se_cmd *cmd, int type, int scope,
- u64 res_key, u64 sa_res_key, int abort)
+ u64 res_key, u64 sa_res_key, enum preempt_type preempt_type)
{
switch (type) {
case PR_TYPE_WRITE_EXCLUSIVE:
@@ -3193,10 +3050,10 @@ core_scsi3_emulate_pro_preempt(struct se_cmd *cmd, int type, int scope,
case PR_TYPE_WRITE_EXCLUSIVE_ALLREG:
case PR_TYPE_EXCLUSIVE_ACCESS_ALLREG:
return core_scsi3_pro_preempt(cmd, type, scope, res_key,
- sa_res_key, abort);
+ sa_res_key, preempt_type);
default:
pr_err("SPC-3 PR: Unknown Service Action PREEMPT%s"
- " Type: 0x%02x\n", (abort) ? "_AND_ABORT" : "", type);
+ " Type: 0x%02x\n", (preempt_type == PREEMPT_AND_ABORT) ? "_AND_ABORT" : "", type);
return TCM_INVALID_CDB_FIELD;
}
}
@@ -3220,7 +3077,7 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key,
unsigned char *initiator_str;
char *iport_ptr = NULL, dest_iport[64], i_buf[PR_REG_ISID_ID_LEN];
u32 tid_len, tmp_tid_len;
- int new_reg = 0, type, scope, matching_iname, prf_isid;
+ int new_reg = 0, type, scope, matching_iname;
sense_reason_t ret;
unsigned short rtpi;
unsigned char proto_ident;
@@ -3564,8 +3421,7 @@ after_iport_check:
dest_pr_reg->pr_res_holder = 1;
dest_pr_reg->pr_res_type = type;
pr_reg->pr_res_scope = scope;
- prf_isid = core_pr_dump_initiator_port(pr_reg, &i_buf[0],
- PR_REG_ISID_ID_LEN);
+ core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
/*
* Increment PRGeneration for existing registrations..
*/
@@ -3581,7 +3437,7 @@ after_iport_check:
pr_debug("SPC-3 PR Successfully moved reservation from"
" %s Fabric Node: %s%s -> %s Fabric Node: %s %s\n",
tf_ops->get_fabric_name(), pr_reg_nacl->initiatorname,
- (prf_isid) ? &i_buf[0] : "", dest_tf_ops->get_fabric_name(),
+ i_buf, dest_tf_ops->get_fabric_name(),
dest_node_acl->initiatorname, (iport_ptr != NULL) ?
iport_ptr : "");
/*
@@ -3602,24 +3458,7 @@ after_iport_check:
} else
core_scsi3_put_pr_reg(pr_reg);
- /*
- * Clear the APTPL metadata if APTPL has been disabled, otherwise
- * write out the updated metadata to struct file for this SCSI device.
- */
- if (!aptpl) {
- pr_tmpl->pr_aptpl_active = 0;
- core_scsi3_update_and_write_aptpl(cmd->se_dev, NULL, 0);
- pr_debug("SPC-3 PR: Set APTPL Bit Deactivated for"
- " REGISTER_AND_MOVE\n");
- } else {
- pr_tmpl->pr_aptpl_active = 1;
- if (!core_scsi3_update_and_write_aptpl(cmd->se_dev,
- &dest_pr_reg->pr_aptpl_buf[0],
- pr_tmpl->pr_aptpl_buf_len)) {
- pr_debug("SPC-3 PR: Set APTPL Bit Activated for"
- " REGISTER_AND_MOVE\n");
- }
- }
+ core_scsi3_update_and_write_aptpl(cmd->se_dev, aptpl);
transport_kunmap_data_sg(cmd);
@@ -3752,7 +3591,7 @@ target_scsi3_emulate_pr_out(struct se_cmd *cmd)
switch (sa) {
case PRO_REGISTER:
ret = core_scsi3_emulate_pro_register(cmd,
- res_key, sa_res_key, aptpl, all_tg_pt, spec_i_pt, 0);
+ res_key, sa_res_key, aptpl, all_tg_pt, spec_i_pt, REGISTER);
break;
case PRO_RESERVE:
ret = core_scsi3_emulate_pro_reserve(cmd, type, scope, res_key);
@@ -3765,15 +3604,15 @@ target_scsi3_emulate_pr_out(struct se_cmd *cmd)
break;
case PRO_PREEMPT:
ret = core_scsi3_emulate_pro_preempt(cmd, type, scope,
- res_key, sa_res_key, 0);
+ res_key, sa_res_key, PREEMPT);
break;
case PRO_PREEMPT_AND_ABORT:
ret = core_scsi3_emulate_pro_preempt(cmd, type, scope,
- res_key, sa_res_key, 1);
+ res_key, sa_res_key, PREEMPT_AND_ABORT);
break;
case PRO_REGISTER_AND_IGNORE_EXISTING_KEY:
ret = core_scsi3_emulate_pro_register(cmd,
- 0, sa_res_key, aptpl, all_tg_pt, spec_i_pt, 1);
+ 0, sa_res_key, aptpl, all_tg_pt, spec_i_pt, REGISTER_AND_IGNORE_EXISTING_KEY);
break;
case PRO_REGISTER_AND_MOVE:
ret = core_scsi3_emulate_pro_register_and_move(cmd, res_key,
diff --git a/drivers/target/target_core_pr.h b/drivers/target/target_core_pr.h
index b4a0042..ed75cdd 100644
--- a/drivers/target/target_core_pr.h
+++ b/drivers/target/target_core_pr.h
@@ -45,7 +45,7 @@
extern struct kmem_cache *t10_pr_reg_cache;
-extern int core_pr_dump_initiator_port(struct t10_pr_registration *,
+extern void core_pr_dump_initiator_port(struct t10_pr_registration *,
char *, u32);
extern sense_reason_t target_scsi2_reservation_release(struct se_cmd *);
extern sense_reason_t target_scsi2_reservation_reserve(struct se_cmd *);
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index 0921a64..51127d1 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -139,6 +139,11 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
rd_dev->rd_page_count);
return -EINVAL;
}
+
+ /* Don't need backing pages for NULLIO */
+ if (rd_dev->rd_flags & RDF_NULLIO)
+ return 0;
+
total_sg_needed = rd_dev->rd_page_count;
sg_tables = (total_sg_needed / max_sg_per_table) + 1;
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index bbc5b0e..8a46277 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -38,11 +38,27 @@ static sense_reason_t
sbc_emulate_readcapacity(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
+ unsigned char *cdb = cmd->t_task_cdb;
unsigned long long blocks_long = dev->transport->get_blocks(dev);
unsigned char *rbuf;
unsigned char buf[8];
u32 blocks;
+ /*
+ * SBC-2 says:
+ * If the PMI bit is set to zero and the LOGICAL BLOCK
+ * ADDRESS field is not set to zero, the device server shall
+ * terminate the command with CHECK CONDITION status with
+ * the sense key set to ILLEGAL REQUEST and the additional
+ * sense code set to INVALID FIELD IN CDB.
+ *
+ * In SBC-3, these fields are obsolete, but some SCSI
+ * compliance tests actually check this, so we might as well
+ * follow SBC-2.
+ */
+ if (!(cdb[8] & 1) && !!(cdb[2] | cdb[3] | cdb[4] | cdb[5]))
+ return TCM_INVALID_CDB_FIELD;
+
if (blocks_long >= 0x00000000ffffffff)
blocks = 0xffffffff;
else
@@ -581,7 +597,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
pr_err("cmd exceeds last lba %llu "
"(lba %llu, sectors %u)\n",
end_lba, cmd->t_task_lba, sectors);
- return TCM_INVALID_CDB_FIELD;
+ return TCM_ADDRESS_OUT_OF_RANGE;
}
size = sbc_get_size(cmd, sectors);
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index d0b4dd9..0d7cacb 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -85,13 +85,8 @@ void core_tmr_release_req(
static void core_tmr_handle_tas_abort(
struct se_node_acl *tmr_nacl,
struct se_cmd *cmd,
- int tas,
- int fe_count)
+ int tas)
{
- if (!fe_count) {
- transport_cmd_finish_abort(cmd, 1);
- return;
- }
/*
* TASK ABORTED status (TAS) bit support
*/
@@ -253,7 +248,6 @@ static void core_tmr_drain_state_list(
LIST_HEAD(drain_task_list);
struct se_cmd *cmd, *next;
unsigned long flags;
- int fe_count;
/*
* Complete outstanding commands with TASK_ABORTED SAM status.
@@ -329,12 +323,10 @@ static void core_tmr_drain_state_list(
spin_lock_irqsave(&cmd->t_state_lock, flags);
target_stop_cmd(cmd, &flags);
- fe_count = atomic_read(&cmd->t_fe_count);
-
cmd->transport_state |= CMD_T_ABORTED;
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count);
+ core_tmr_handle_tas_abort(tmr_nacl, cmd, tas);
}
}
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 21e3158..7172d00 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -52,6 +52,9 @@
#include "target_core_pr.h"
#include "target_core_ua.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/target.h>
+
static struct workqueue_struct *target_completion_wq;
static struct kmem_cache *se_sess_cache;
struct kmem_cache *se_ua_cache;
@@ -446,11 +449,15 @@ static void target_remove_from_state_list(struct se_cmd *cmd)
spin_unlock_irqrestore(&dev->execute_task_lock, flags);
}
-static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists)
+static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists,
+ bool write_pending)
{
unsigned long flags;
spin_lock_irqsave(&cmd->t_state_lock, flags);
+ if (write_pending)
+ cmd->t_state = TRANSPORT_WRITE_PENDING;
+
/*
* Determine if IOCTL context caller in requesting the stopping of this
* command for LUN shutdown purposes.
@@ -515,7 +522,7 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists)
static int transport_cmd_check_stop_to_fabric(struct se_cmd *cmd)
{
- return transport_cmd_check_stop(cmd, true);
+ return transport_cmd_check_stop(cmd, true, false);
}
static void transport_lun_remove_cmd(struct se_cmd *cmd)
@@ -526,13 +533,6 @@ static void transport_lun_remove_cmd(struct se_cmd *cmd)
if (!lun)
return;
- spin_lock_irqsave(&cmd->t_state_lock, flags);
- if (cmd->transport_state & CMD_T_DEV_ACTIVE) {
- cmd->transport_state &= ~CMD_T_DEV_ACTIVE;
- target_remove_from_state_list(cmd);
- }
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-
spin_lock_irqsave(&lun->lun_cmd_lock, flags);
if (!list_empty(&cmd->se_lun_node))
list_del_init(&cmd->se_lun_node);
@@ -1092,7 +1092,6 @@ sense_reason_t
target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
{
struct se_device *dev = cmd->se_dev;
- unsigned long flags;
sense_reason_t ret;
/*
@@ -1127,6 +1126,8 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
*/
memcpy(cmd->t_task_cdb, cdb, scsi_command_size(cdb));
+ trace_target_sequencer_start(cmd);
+
/*
* Check for an existing UNIT ATTENTION condition
*/
@@ -1152,9 +1153,7 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
if (ret)
return ret;
- spin_lock_irqsave(&cmd->t_state_lock, flags);
cmd->se_cmd_flags |= SCF_SUPPORTED_SAM_OPCODE;
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
spin_lock(&cmd->se_lun->lun_sep_lock);
if (cmd->se_lun->lun_sep)
@@ -1552,7 +1551,8 @@ void transport_generic_request_failure(struct se_cmd *cmd,
cmd->orig_fe_lun, 0x2C,
ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS);
- ret = cmd->se_tfo->queue_status(cmd);
+ trace_target_cmd_complete(cmd);
+ ret = cmd->se_tfo-> queue_status(cmd);
if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
goto check_stop;
@@ -1583,10 +1583,6 @@ static void __target_execute_cmd(struct se_cmd *cmd)
{
sense_reason_t ret;
- spin_lock_irq(&cmd->t_state_lock);
- cmd->transport_state |= (CMD_T_BUSY|CMD_T_SENT);
- spin_unlock_irq(&cmd->t_state_lock);
-
if (cmd->execute_cmd) {
ret = cmd->execute_cmd(cmd);
if (ret) {
@@ -1693,11 +1689,17 @@ void target_execute_cmd(struct se_cmd *cmd)
}
cmd->t_state = TRANSPORT_PROCESSING;
- cmd->transport_state |= CMD_T_ACTIVE;
+ cmd->transport_state |= CMD_T_ACTIVE|CMD_T_BUSY|CMD_T_SENT;
spin_unlock_irq(&cmd->t_state_lock);
- if (!target_handle_task_attr(cmd))
- __target_execute_cmd(cmd);
+ if (target_handle_task_attr(cmd)) {
+ spin_lock_irq(&cmd->t_state_lock);
+ cmd->transport_state &= ~CMD_T_BUSY|CMD_T_SENT;
+ spin_unlock_irq(&cmd->t_state_lock);
+ return;
+ }
+
+ __target_execute_cmd(cmd);
}
EXPORT_SYMBOL(target_execute_cmd);
@@ -1770,6 +1772,7 @@ static void transport_complete_qf(struct se_cmd *cmd)
transport_complete_task_attr(cmd);
if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) {
+ trace_target_cmd_complete(cmd);
ret = cmd->se_tfo->queue_status(cmd);
if (ret)
goto out;
@@ -1777,6 +1780,7 @@ static void transport_complete_qf(struct se_cmd *cmd)
switch (cmd->data_direction) {
case DMA_FROM_DEVICE:
+ trace_target_cmd_complete(cmd);
ret = cmd->se_tfo->queue_data_in(cmd);
break;
case DMA_TO_DEVICE:
@@ -1787,6 +1791,7 @@ static void transport_complete_qf(struct se_cmd *cmd)
}
/* Fall through for DMA_TO_DEVICE */
case DMA_NONE:
+ trace_target_cmd_complete(cmd);
ret = cmd->se_tfo->queue_status(cmd);
break;
default:
@@ -1865,6 +1870,7 @@ static void target_complete_ok_work(struct work_struct *work)
}
spin_unlock(&cmd->se_lun->lun_sep_lock);
+ trace_target_cmd_complete(cmd);
ret = cmd->se_tfo->queue_data_in(cmd);
if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
@@ -1893,6 +1899,7 @@ static void target_complete_ok_work(struct work_struct *work)
}
/* Fall through for DMA_TO_DEVICE */
case DMA_NONE:
+ trace_target_cmd_complete(cmd);
ret = cmd->se_tfo->queue_status(cmd);
if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
@@ -1956,11 +1963,7 @@ static int transport_release_cmd(struct se_cmd *cmd)
* If this cmd has been setup with target_get_sess_cmd(), drop
* the kref and call ->release_cmd() in kref callback.
*/
- if (cmd->check_release != 0)
- return target_put_sess_cmd(cmd->se_sess, cmd);
-
- cmd->se_tfo->release_cmd(cmd);
- return 1;
+ return target_put_sess_cmd(cmd->se_sess, cmd);
}
/**
@@ -1971,21 +1974,6 @@ static int transport_release_cmd(struct se_cmd *cmd)
*/
static int transport_put_cmd(struct se_cmd *cmd)
{
- unsigned long flags;
-
- spin_lock_irqsave(&cmd->t_state_lock, flags);
- if (atomic_read(&cmd->t_fe_count) &&
- !atomic_dec_and_test(&cmd->t_fe_count)) {
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- return 0;
- }
-
- if (cmd->transport_state & CMD_T_DEV_ACTIVE) {
- cmd->transport_state &= ~CMD_T_DEV_ACTIVE;
- target_remove_from_state_list(cmd);
- }
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-
transport_free_pages(cmd);
return transport_release_cmd(cmd);
}
@@ -2103,9 +2091,6 @@ transport_generic_new_cmd(struct se_cmd *cmd)
if (ret < 0)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
-
- atomic_inc(&cmd->t_fe_count);
-
/*
* If this command is not a write we can execute it right here,
* for write buffers we need to notify the fabric driver first
@@ -2116,12 +2101,7 @@ transport_generic_new_cmd(struct se_cmd *cmd)
target_execute_cmd(cmd);
return 0;
}
-
- spin_lock_irq(&cmd->t_state_lock);
- cmd->t_state = TRANSPORT_WRITE_PENDING;
- spin_unlock_irq(&cmd->t_state_lock);
-
- transport_cmd_check_stop(cmd, false);
+ transport_cmd_check_stop(cmd, false, true);
ret = cmd->se_tfo->write_pending(cmd);
if (ret == -EAGAIN || ret == -ENOMEM)
@@ -2202,8 +2182,6 @@ int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd,
goto out;
}
list_add_tail(&se_cmd->se_cmd_list, &se_sess->sess_cmd_list);
- se_cmd->check_release = 1;
-
out:
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
return ret;
@@ -2319,7 +2297,7 @@ static int transport_lun_wait_for_tasks(struct se_cmd *cmd, struct se_lun *lun)
pr_debug("ConfigFS ITT[0x%08x] - CMD_T_STOP, skipping\n",
cmd->se_tfo->get_task_tag(cmd));
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- transport_cmd_check_stop(cmd, false);
+ transport_cmd_check_stop(cmd, false, false);
return -EPERM;
}
cmd->transport_state |= CMD_T_LUN_FE_STOP;
@@ -2427,7 +2405,7 @@ check_cond:
spin_unlock_irqrestore(&cmd->t_state_lock,
cmd_flags);
- transport_cmd_check_stop(cmd, false);
+ transport_cmd_check_stop(cmd, false, false);
complete(&cmd->transport_lun_fe_stop_comp);
spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags);
continue;
@@ -2778,6 +2756,7 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd,
cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER;
after_reason:
+ trace_target_cmd_complete(cmd);
return cmd->se_tfo->queue_status(cmd);
}
EXPORT_SYMBOL(transport_send_check_condition_and_sense);
@@ -2794,6 +2773,7 @@ int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd));
cmd->se_cmd_flags |= SCF_SENT_DELAYED_TAS;
+ trace_target_cmd_complete(cmd);
cmd->se_tfo->queue_status(cmd);
return 1;
@@ -2831,6 +2811,7 @@ void transport_send_task_abort(struct se_cmd *cmd)
" ITT: 0x%08x\n", cmd->t_task_cdb[0],
cmd->se_tfo->get_task_tag(cmd));
+ trace_target_cmd_complete(cmd);
cmd->se_tfo->queue_status(cmd);
}
diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h
index eea6935..0dd54a4 100644
--- a/drivers/target/tcm_fc/tcm_fc.h
+++ b/drivers/target/tcm_fc/tcm_fc.h
@@ -161,7 +161,7 @@ int ft_write_pending(struct se_cmd *);
int ft_write_pending_status(struct se_cmd *);
u32 ft_get_task_tag(struct se_cmd *);
int ft_get_cmd_state(struct se_cmd *);
-int ft_queue_tm_resp(struct se_cmd *);
+void ft_queue_tm_resp(struct se_cmd *);
/*
* other internal functions.
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index b406f17..0e5a1cae 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -394,14 +394,14 @@ static void ft_send_tm(struct ft_cmd *cmd)
/*
* Send status from completed task management request.
*/
-int ft_queue_tm_resp(struct se_cmd *se_cmd)
+void ft_queue_tm_resp(struct se_cmd *se_cmd)
{
struct ft_cmd *cmd = container_of(se_cmd, struct ft_cmd, se_cmd);
struct se_tmr_req *tmr = se_cmd->se_tmr_req;
enum fcp_resp_rsp_codes code;
if (cmd->aborted)
- return 0;
+ return;
switch (tmr->response) {
case TMR_FUNCTION_COMPLETE:
code = FCP_TMF_CMPL;
@@ -413,10 +413,7 @@ int ft_queue_tm_resp(struct se_cmd *se_cmd)
code = FCP_TMF_REJECTED;
break;
case TMR_TASK_DOES_NOT_EXIST:
- case TMR_TASK_STILL_ALLEGIANT:
- case TMR_TASK_FAILOVER_NOT_SUPPORTED:
case TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED:
- case TMR_FUNCTION_AUTHORIZATION_FAILED:
default:
code = FCP_TMF_FAILED;
break;
@@ -424,7 +421,6 @@ int ft_queue_tm_resp(struct se_cmd *se_cmd)
pr_debug("tmr fn %d resp %d fcp code %d\n",
tmr->function, tmr->response, code);
ft_send_resp_code(cmd, code);
- return 0;
}
static void ft_send_work(struct work_struct *work);
diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c
index 7cacd6a..0ff3339 100644
--- a/drivers/usb/gadget/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/tcm_usb_gadget.c
@@ -1467,9 +1467,8 @@ static int usbg_get_cmd_state(struct se_cmd *se_cmd)
return 0;
}
-static int usbg_queue_tm_rsp(struct se_cmd *se_cmd)
+static void usbg_queue_tm_rsp(struct se_cmd *se_cmd)
{
- return 0;
}
static const char *usbg_check_wwn(const char *name)
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 4264840..06adf31 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -448,7 +448,19 @@ static u32 tcm_vhost_tpg_get_inst_index(struct se_portal_group *se_tpg)
static void tcm_vhost_release_cmd(struct se_cmd *se_cmd)
{
- return;
+ struct tcm_vhost_cmd *tv_cmd = container_of(se_cmd,
+ struct tcm_vhost_cmd, tvc_se_cmd);
+
+ if (tv_cmd->tvc_sgl_count) {
+ u32 i;
+ for (i = 0; i < tv_cmd->tvc_sgl_count; i++)
+ put_page(sg_page(&tv_cmd->tvc_sgl[i]));
+
+ kfree(tv_cmd->tvc_sgl);
+ }
+
+ tcm_vhost_put_inflight(tv_cmd->inflight);
+ kfree(tv_cmd);
}
static int tcm_vhost_shutdown_session(struct se_session *se_sess)
@@ -518,9 +530,9 @@ static int tcm_vhost_queue_status(struct se_cmd *se_cmd)
return 0;
}
-static int tcm_vhost_queue_tm_rsp(struct se_cmd *se_cmd)
+static void tcm_vhost_queue_tm_rsp(struct se_cmd *se_cmd)
{
- return 0;
+ return;
}
static void tcm_vhost_free_evt(struct vhost_scsi *vs, struct tcm_vhost_evt *evt)
@@ -560,19 +572,13 @@ static void vhost_scsi_free_cmd(struct tcm_vhost_cmd *cmd)
struct se_cmd *se_cmd = &cmd->tvc_se_cmd;
/* TODO locking against target/backend threads? */
- transport_generic_free_cmd(se_cmd, 1);
+ transport_generic_free_cmd(se_cmd, 0);
- if (cmd->tvc_sgl_count) {
- u32 i;
- for (i = 0; i < cmd->tvc_sgl_count; i++)
- put_page(sg_page(&cmd->tvc_sgl[i]));
-
- kfree(cmd->tvc_sgl);
- }
-
- tcm_vhost_put_inflight(cmd->inflight);
+}
- kfree(cmd);
+static int vhost_scsi_check_stop_free(struct se_cmd *se_cmd)
+{
+ return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
}
static void
@@ -856,7 +862,7 @@ static void tcm_vhost_submission_work(struct work_struct *work)
cmd->tvc_cdb, &cmd->tvc_sense_buf[0],
cmd->tvc_lun, cmd->tvc_exp_data_len,
cmd->tvc_task_attr, cmd->tvc_data_direction,
- 0, sg_ptr, cmd->tvc_sgl_count,
+ TARGET_SCF_ACK_KREF, sg_ptr, cmd->tvc_sgl_count,
sg_bidi_ptr, sg_no_bidi);
if (rc < 0) {
transport_send_check_condition_and_sense(se_cmd,
@@ -2028,6 +2034,7 @@ static struct target_core_fabric_ops tcm_vhost_ops = {
.tpg_release_fabric_acl = tcm_vhost_release_fabric_acl,
.tpg_get_inst_index = tcm_vhost_tpg_get_inst_index,
.release_cmd = tcm_vhost_release_cmd,
+ .check_stop_free = vhost_scsi_check_stop_free,
.shutdown_session = tcm_vhost_shutdown_session,
.close_session = tcm_vhost_close_session,
.sess_get_index = tcm_vhost_sess_get_index,
diff --git a/include/target/iscsi/iscsi_transport.h b/include/target/iscsi/iscsi_transport.h
index 23a87d0..e5d09d2 100644
--- a/include/target/iscsi/iscsi_transport.h
+++ b/include/target/iscsi/iscsi_transport.h
@@ -34,8 +34,6 @@ extern void iscsit_put_transport(struct iscsit_transport *);
/*
* From iscsi_target.c
*/
-extern int iscsit_add_reject_from_cmd(u8, int, int, unsigned char *,
- struct iscsi_cmd *);
extern int iscsit_setup_scsi_cmd(struct iscsi_conn *, struct iscsi_cmd *,
unsigned char *);
extern void iscsit_set_unsoliticed_dataout(struct iscsi_cmd *);
@@ -45,18 +43,26 @@ extern int iscsit_check_dataout_hdr(struct iscsi_conn *, unsigned char *,
struct iscsi_cmd **);
extern int iscsit_check_dataout_payload(struct iscsi_cmd *, struct iscsi_data *,
bool);
-extern int iscsit_handle_nop_out(struct iscsi_conn *, struct iscsi_cmd *,
- unsigned char *);
+extern int iscsit_setup_nop_out(struct iscsi_conn *, struct iscsi_cmd *,
+ struct iscsi_nopout *);
+extern int iscsit_process_nop_out(struct iscsi_conn *, struct iscsi_cmd *,
+ struct iscsi_nopout *);
extern int iscsit_handle_logout_cmd(struct iscsi_conn *, struct iscsi_cmd *,
unsigned char *);
extern int iscsit_handle_task_mgt_cmd(struct iscsi_conn *, struct iscsi_cmd *,
unsigned char *);
+extern int iscsit_setup_text_cmd(struct iscsi_conn *, struct iscsi_cmd *,
+ struct iscsi_text *);
+extern int iscsit_process_text_cmd(struct iscsi_conn *, struct iscsi_cmd *,
+ struct iscsi_text *);
extern void iscsit_build_rsp_pdu(struct iscsi_cmd *, struct iscsi_conn *,
bool, struct iscsi_scsi_rsp *);
extern void iscsit_build_nopin_rsp(struct iscsi_cmd *, struct iscsi_conn *,
struct iscsi_nopin *, bool);
extern void iscsit_build_task_mgt_rsp(struct iscsi_cmd *, struct iscsi_conn *,
struct iscsi_tm_rsp *);
+extern int iscsit_build_text_rsp(struct iscsi_cmd *, struct iscsi_conn *,
+ struct iscsi_text_rsp *);
extern void iscsit_build_reject(struct iscsi_cmd *, struct iscsi_conn *,
struct iscsi_reject *);
extern int iscsit_build_logout_rsp(struct iscsi_cmd *, struct iscsi_conn *,
@@ -67,6 +73,10 @@ extern int iscsit_logout_post_handler(struct iscsi_cmd *, struct iscsi_conn *);
*/
extern void iscsit_increment_maxcmdsn(struct iscsi_cmd *, struct iscsi_session *);
/*
+ * From iscsi_target_erl0.c
+ */
+extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int);
+/*
* From iscsi_target_erl1.c
*/
extern void iscsit_stop_dataout_timer(struct iscsi_cmd *);
@@ -80,4 +90,5 @@ extern int iscsit_tmr_post_handler(struct iscsi_cmd *, struct iscsi_conn *);
* From iscsi_target_util.c
*/
extern struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *, gfp_t);
-extern int iscsit_sequence_cmd(struct iscsi_conn *, struct iscsi_cmd *, __be32);
+extern int iscsit_sequence_cmd(struct iscsi_conn *, struct iscsi_cmd *,
+ unsigned char *, __be32);
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 4ea4f98..e34fc90 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -218,14 +218,11 @@ enum tcm_tmreq_table {
/* fabric independent task management response values */
enum tcm_tmrsp_table {
- TMR_FUNCTION_COMPLETE = 0,
- TMR_TASK_DOES_NOT_EXIST = 1,
- TMR_LUN_DOES_NOT_EXIST = 2,
- TMR_TASK_STILL_ALLEGIANT = 3,
- TMR_TASK_FAILOVER_NOT_SUPPORTED = 4,
- TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5,
- TMR_FUNCTION_AUTHORIZATION_FAILED = 6,
- TMR_FUNCTION_REJECTED = 255,
+ TMR_FUNCTION_COMPLETE = 1,
+ TMR_TASK_DOES_NOT_EXIST = 2,
+ TMR_LUN_DOES_NOT_EXIST = 3,
+ TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4,
+ TMR_FUNCTION_REJECTED = 5,
};
/*
@@ -339,8 +336,6 @@ struct t10_pr_registration {
/* Used during APTPL metadata reading */
#define PR_APTPL_MAX_TPORT_LEN 256
unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN];
- /* For writing out live meta data */
- unsigned char *pr_aptpl_buf;
u16 pr_aptpl_rpti;
u16 pr_reg_tpgt;
/* Reservation effects all target ports */
@@ -374,9 +369,7 @@ struct t10_reservation {
/* Activate Persistence across Target Power Loss enabled
* for SCSI device */
int pr_aptpl_active;
- /* Used by struct t10_reservation->pr_aptpl_buf_len */
#define PR_APTPL_BUF_LEN 8192
- u32 pr_aptpl_buf_len;
u32 pr_generation;
spinlock_t registration_lock;
spinlock_t aptpl_reg_lock;
@@ -424,8 +417,6 @@ struct se_cmd {
int sam_task_attr;
/* Transport protocol dependent state, see transport_state_table */
enum transport_state_table t_state;
- /* Used to signal cmd->se_tfo->check_release_cmd() usage per cmd */
- unsigned check_release:1;
unsigned cmd_wait_set:1;
unsigned unknown_data_length:1;
/* See se_cmd_flags_table */
@@ -458,7 +449,6 @@ struct se_cmd {
unsigned char *t_task_cdb;
unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
unsigned long long t_task_lba;
- atomic_t t_fe_count;
unsigned int transport_state;
#define CMD_T_ABORTED (1 << 0)
#define CMD_T_ACTIVE (1 << 1)
@@ -802,11 +792,12 @@ struct se_portal_group {
struct target_core_fabric_ops *se_tpg_tfo;
struct se_wwn *se_tpg_wwn;
struct config_group tpg_group;
- struct config_group *tpg_default_groups[6];
+ struct config_group *tpg_default_groups[7];
struct config_group tpg_lun_group;
struct config_group tpg_np_group;
struct config_group tpg_acl_group;
struct config_group tpg_attrib_group;
+ struct config_group tpg_auth_group;
struct config_group tpg_param_group;
};
diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h
index 6125095..713c500 100644
--- a/include/target/target_core_configfs.h
+++ b/include/target/target_core_configfs.h
@@ -23,6 +23,7 @@ struct target_fabric_configfs_template {
struct config_item_type tfc_tpg_np_cit;
struct config_item_type tfc_tpg_np_base_cit;
struct config_item_type tfc_tpg_attrib_cit;
+ struct config_item_type tfc_tpg_auth_cit;
struct config_item_type tfc_tpg_param_cit;
struct config_item_type tfc_tpg_nacl_cit;
struct config_item_type tfc_tpg_nacl_base_cit;
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 1dcce9c..7a16178 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -61,7 +61,7 @@ struct target_core_fabric_ops {
int (*get_cmd_state)(struct se_cmd *);
int (*queue_data_in)(struct se_cmd *);
int (*queue_status)(struct se_cmd *);
- int (*queue_tm_rsp)(struct se_cmd *);
+ void (*queue_tm_rsp)(struct se_cmd *);
/*
* fabric module calls for target_core_fabric_configfs.c
*/
diff --git a/include/target/target_core_fabric_configfs.h b/include/target/target_core_fabric_configfs.h
index a26fb75..b32a149 100644
--- a/include/target/target_core_fabric_configfs.h
+++ b/include/target/target_core_fabric_configfs.h
@@ -62,6 +62,17 @@ static struct target_fabric_tpg_attrib_attribute _fabric##_tpg_attrib_##_name =
_fabric##_tpg_attrib_show_##_name, \
_fabric##_tpg_attrib_store_##_name);
+CONFIGFS_EATTR_STRUCT(target_fabric_tpg_auth, se_portal_group);
+#define TF_TPG_AUTH_ATTR(_fabric, _name, _mode) \
+static struct target_fabric_tpg_auth_attribute _fabric##_tpg_auth_##_name = \
+ __CONFIGFS_EATTR(_name, _mode, \
+ _fabric##_tpg_auth_show_##_name, \
+ _fabric##_tpg_auth_store_##_name);
+
+#define TF_TPG_AUTH_ATTR_RO(_fabric, _name) \
+static struct target_fabric_tpg_auth_attribute _fabric##_tpg_auth_##_name = \
+ __CONFIGFS_EATTR_RO(_name, \
+ _fabric##_tpg_auth_show_##_name);
CONFIGFS_EATTR_STRUCT(target_fabric_tpg_param, se_portal_group);
#define TF_TPG_PARAM_ATTR(_fabric, _name, _mode) \
diff --git a/include/trace/events/target.h b/include/trace/events/target.h
new file mode 100644
index 0000000..aef8fc3
--- /dev/null
+++ b/include/trace/events/target.h
@@ -0,0 +1,214 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM target
+
+#if !defined(_TRACE_TARGET_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_TARGET_H
+
+#include <linux/tracepoint.h>
+#include <linux/trace_seq.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_tcq.h>
+#include <target/target_core_base.h>
+
+/* cribbed verbatim from <trace/event/scsi.h> */
+#define scsi_opcode_name(opcode) { opcode, #opcode }
+#define show_opcode_name(val) \
+ __print_symbolic(val, \
+ scsi_opcode_name(TEST_UNIT_READY), \
+ scsi_opcode_name(REZERO_UNIT), \
+ scsi_opcode_name(REQUEST_SENSE), \
+ scsi_opcode_name(FORMAT_UNIT), \
+ scsi_opcode_name(READ_BLOCK_LIMITS), \
+ scsi_opcode_name(REASSIGN_BLOCKS), \
+ scsi_opcode_name(INITIALIZE_ELEMENT_STATUS), \
+ scsi_opcode_name(READ_6), \
+ scsi_opcode_name(WRITE_6), \
+ scsi_opcode_name(SEEK_6), \
+ scsi_opcode_name(READ_REVERSE), \
+ scsi_opcode_name(WRITE_FILEMARKS), \
+ scsi_opcode_name(SPACE), \
+ scsi_opcode_name(INQUIRY), \
+ scsi_opcode_name(RECOVER_BUFFERED_DATA), \
+ scsi_opcode_name(MODE_SELECT), \
+ scsi_opcode_name(RESERVE), \
+ scsi_opcode_name(RELEASE), \
+ scsi_opcode_name(COPY), \
+ scsi_opcode_name(ERASE), \
+ scsi_opcode_name(MODE_SENSE), \
+ scsi_opcode_name(START_STOP), \
+ scsi_opcode_name(RECEIVE_DIAGNOSTIC), \
+ scsi_opcode_name(SEND_DIAGNOSTIC), \
+ scsi_opcode_name(ALLOW_MEDIUM_REMOVAL), \
+ scsi_opcode_name(SET_WINDOW), \
+ scsi_opcode_name(READ_CAPACITY), \
+ scsi_opcode_name(READ_10), \
+ scsi_opcode_name(WRITE_10), \
+ scsi_opcode_name(SEEK_10), \
+ scsi_opcode_name(POSITION_TO_ELEMENT), \
+ scsi_opcode_name(WRITE_VERIFY), \
+ scsi_opcode_name(VERIFY), \
+ scsi_opcode_name(SEARCH_HIGH), \
+ scsi_opcode_name(SEARCH_EQUAL), \
+ scsi_opcode_name(SEARCH_LOW), \
+ scsi_opcode_name(SET_LIMITS), \
+ scsi_opcode_name(PRE_FETCH), \
+ scsi_opcode_name(READ_POSITION), \
+ scsi_opcode_name(SYNCHRONIZE_CACHE), \
+ scsi_opcode_name(LOCK_UNLOCK_CACHE), \
+ scsi_opcode_name(READ_DEFECT_DATA), \
+ scsi_opcode_name(MEDIUM_SCAN), \
+ scsi_opcode_name(COMPARE), \
+ scsi_opcode_name(COPY_VERIFY), \
+ scsi_opcode_name(WRITE_BUFFER), \
+ scsi_opcode_name(READ_BUFFER), \
+ scsi_opcode_name(UPDATE_BLOCK), \
+ scsi_opcode_name(READ_LONG), \
+ scsi_opcode_name(WRITE_LONG), \
+ scsi_opcode_name(CHANGE_DEFINITION), \
+ scsi_opcode_name(WRITE_SAME), \
+ scsi_opcode_name(UNMAP), \
+ scsi_opcode_name(READ_TOC), \
+ scsi_opcode_name(LOG_SELECT), \
+ scsi_opcode_name(LOG_SENSE), \
+ scsi_opcode_name(XDWRITEREAD_10), \
+ scsi_opcode_name(MODE_SELECT_10), \
+ scsi_opcode_name(RESERVE_10), \
+ scsi_opcode_name(RELEASE_10), \
+ scsi_opcode_name(MODE_SENSE_10), \
+ scsi_opcode_name(PERSISTENT_RESERVE_IN), \
+ scsi_opcode_name(PERSISTENT_RESERVE_OUT), \
+ scsi_opcode_name(VARIABLE_LENGTH_CMD), \
+ scsi_opcode_name(REPORT_LUNS), \
+ scsi_opcode_name(MAINTENANCE_IN), \
+ scsi_opcode_name(MAINTENANCE_OUT), \
+ scsi_opcode_name(MOVE_MEDIUM), \
+ scsi_opcode_name(EXCHANGE_MEDIUM), \
+ scsi_opcode_name(READ_12), \
+ scsi_opcode_name(WRITE_12), \
+ scsi_opcode_name(WRITE_VERIFY_12), \
+ scsi_opcode_name(SEARCH_HIGH_12), \
+ scsi_opcode_name(SEARCH_EQUAL_12), \
+ scsi_opcode_name(SEARCH_LOW_12), \
+ scsi_opcode_name(READ_ELEMENT_STATUS), \
+ scsi_opcode_name(SEND_VOLUME_TAG), \
+ scsi_opcode_name(WRITE_LONG_2), \
+ scsi_opcode_name(READ_16), \
+ scsi_opcode_name(WRITE_16), \
+ scsi_opcode_name(VERIFY_16), \
+ scsi_opcode_name(WRITE_SAME_16), \
+ scsi_opcode_name(SERVICE_ACTION_IN), \
+ scsi_opcode_name(SAI_READ_CAPACITY_16), \
+ scsi_opcode_name(SAI_GET_LBA_STATUS), \
+ scsi_opcode_name(MI_REPORT_TARGET_PGS), \
+ scsi_opcode_name(MO_SET_TARGET_PGS), \
+ scsi_opcode_name(READ_32), \
+ scsi_opcode_name(WRITE_32), \
+ scsi_opcode_name(WRITE_SAME_32), \
+ scsi_opcode_name(ATA_16), \
+ scsi_opcode_name(ATA_12))
+
+#define show_task_attribute_name(val) \
+ __print_symbolic(val, \
+ { MSG_SIMPLE_TAG, "SIMPLE" }, \
+ { MSG_HEAD_TAG, "HEAD" }, \
+ { MSG_ORDERED_TAG, "ORDERED" }, \
+ { MSG_ACA_TAG, "ACA" } )
+
+#define show_scsi_status_name(val) \
+ __print_symbolic(val, \
+ { SAM_STAT_GOOD, "GOOD" }, \
+ { SAM_STAT_CHECK_CONDITION, "CHECK CONDITION" }, \
+ { SAM_STAT_CONDITION_MET, "CONDITION MET" }, \
+ { SAM_STAT_BUSY, "BUSY" }, \
+ { SAM_STAT_INTERMEDIATE, "INTERMEDIATE" }, \
+ { SAM_STAT_INTERMEDIATE_CONDITION_MET, "INTERMEDIATE CONDITION MET" }, \
+ { SAM_STAT_RESERVATION_CONFLICT, "RESERVATION CONFLICT" }, \
+ { SAM_STAT_COMMAND_TERMINATED, "COMMAND TERMINATED" }, \
+ { SAM_STAT_TASK_SET_FULL, "TASK SET FULL" }, \
+ { SAM_STAT_ACA_ACTIVE, "ACA ACTIVE" }, \
+ { SAM_STAT_TASK_ABORTED, "TASK ABORTED" } )
+
+TRACE_EVENT(target_sequencer_start,
+
+ TP_PROTO(struct se_cmd *cmd),
+
+ TP_ARGS(cmd),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, unpacked_lun )
+ __field( unsigned int, opcode )
+ __field( unsigned int, data_length )
+ __field( unsigned int, task_attribute )
+ __array( unsigned char, cdb, TCM_MAX_COMMAND_SIZE )
+ __string( initiator, cmd->se_sess->se_node_acl->initiatorname )
+ ),
+
+ TP_fast_assign(
+ __entry->unpacked_lun = cmd->se_lun->unpacked_lun;
+ __entry->opcode = cmd->t_task_cdb[0];
+ __entry->data_length = cmd->data_length;
+ __entry->task_attribute = cmd->sam_task_attr;
+ memcpy(__entry->cdb, cmd->t_task_cdb, TCM_MAX_COMMAND_SIZE);
+ __assign_str(initiator, cmd->se_sess->se_node_acl->initiatorname);
+ ),
+
+ TP_printk("%s -> LUN %03u %s data_length %6u CDB %s (TA:%s C:%02x)",
+ __get_str(initiator), __entry->unpacked_lun,
+ show_opcode_name(__entry->opcode),
+ __entry->data_length, __print_hex(__entry->cdb, 16),
+ show_task_attribute_name(__entry->task_attribute),
+ scsi_command_size(__entry->cdb) <= 16 ?
+ __entry->cdb[scsi_command_size(__entry->cdb) - 1] :
+ __entry->cdb[1]
+ )
+);
+
+TRACE_EVENT(target_cmd_complete,
+
+ TP_PROTO(struct se_cmd *cmd),
+
+ TP_ARGS(cmd),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, unpacked_lun )
+ __field( unsigned int, opcode )
+ __field( unsigned int, data_length )
+ __field( unsigned int, task_attribute )
+ __field( unsigned char, scsi_status )
+ __field( unsigned char, sense_length )
+ __array( unsigned char, cdb, TCM_MAX_COMMAND_SIZE )
+ __array( unsigned char, sense_data, 18 )
+ __string(initiator, cmd->se_sess->se_node_acl->initiatorname)
+ ),
+
+ TP_fast_assign(
+ __entry->unpacked_lun = cmd->se_lun->unpacked_lun;
+ __entry->opcode = cmd->t_task_cdb[0];
+ __entry->data_length = cmd->data_length;
+ __entry->task_attribute = cmd->sam_task_attr;
+ __entry->scsi_status = cmd->scsi_status;
+ __entry->sense_length = cmd->scsi_status == SAM_STAT_CHECK_CONDITION ?
+ min(18, ((u8 *) cmd->sense_buffer)[SPC_ADD_SENSE_LEN_OFFSET] + 8) : 0;
+ memcpy(__entry->cdb, cmd->t_task_cdb, TCM_MAX_COMMAND_SIZE);
+ memcpy(__entry->sense_data, cmd->sense_buffer, __entry->sense_length);
+ __assign_str(initiator, cmd->se_sess->se_node_acl->initiatorname);
+ ),
+
+ TP_printk("%s <- LUN %03u status %s (sense len %d%s%s) %s data_length %6u CDB %s (TA:%s C:%02x)",
+ __get_str(initiator), __entry->unpacked_lun,
+ show_scsi_status_name(__entry->scsi_status),
+ __entry->sense_length, __entry->sense_length ? " / " : "",
+ __print_hex(__entry->sense_data, __entry->sense_length),
+ show_opcode_name(__entry->opcode),
+ __entry->data_length, __print_hex(__entry->cdb, 16),
+ show_task_attribute_name(__entry->task_attribute),
+ scsi_command_size(__entry->cdb) <= 16 ?
+ __entry->cdb[scsi_command_size(__entry->cdb) - 1] :
+ __entry->cdb[1]
+ )
+);
+
+#endif /* _TRACE_TARGET_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>