Commit 649ee054 authored by Bart Van Assche's avatar Bart Van Assche Committed by Nicholas Bellinger

target: Move task tag into struct se_cmd + support 64-bit tags

Simplify target core and target drivers by storing the task tag
a.k.a. command identifier inside struct se_cmd.

For several transports (e.g. SRP) tags are 64 bits wide.
Hence add support for 64-bit tags.

(Fix core_tmr_abort_task conversion spec warnings - nab)
(Fix up usb-gadget to use 16-bit tags - HCH + bart)
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andy Grover <agrover@redhat.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: <qla2xxx-upstream@qlogic.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 2650d71e
......@@ -310,7 +310,6 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name):
buf += " .write_pending = " + fabric_mod_name + "_write_pending,\n"
buf += " .write_pending_status = " + fabric_mod_name + "_write_pending_status,\n"
buf += " .set_default_node_attributes = " + fabric_mod_name + "_set_default_node_attrs,\n"
buf += " .get_task_tag = " + fabric_mod_name + "_get_task_tag,\n"
buf += " .get_cmd_state = " + fabric_mod_name + "_get_cmd_state,\n"
buf += " .queue_data_in = " + fabric_mod_name + "_queue_data_in,\n"
buf += " .queue_status = " + fabric_mod_name + "_queue_status,\n"
......@@ -525,13 +524,6 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name):
buf += "}\n\n"
bufi += "void " + fabric_mod_name + "_set_default_node_attrs(struct se_node_acl *);\n"
if re.search('get_task_tag\)\(', fo):
buf += "u32 " + fabric_mod_name + "_get_task_tag(struct se_cmd *se_cmd)\n"
buf += "{\n"
buf += " return 0;\n"
buf += "}\n\n"
bufi += "u32 " + fabric_mod_name + "_get_task_tag(struct se_cmd *);\n"
if re.search('get_cmd_state\)\(', fo):
buf += "int " + fabric_mod_name + "_get_cmd_state(struct se_cmd *se_cmd)\n"
buf += "{\n"
......
......@@ -1339,7 +1339,7 @@ static int srpt_abort_cmd(struct srpt_send_ioctx *ioctx)
}
pr_debug("Aborting cmd with state %d and tag %lld\n", state,
ioctx->tag);
ioctx->cmd.tag);
switch (state) {
case SRPT_STATE_NEW:
......@@ -1701,7 +1701,7 @@ static int srpt_handle_cmd(struct srpt_rdma_ch *ch,
srp_cmd = recv_ioctx->ioctx.buf;
cmd = &send_ioctx->cmd;
send_ioctx->tag = srp_cmd->tag;
cmd->tag = srp_cmd->tag;
switch (srp_cmd->task_attr) {
case SRP_CMD_SIMPLE_Q:
......@@ -1772,7 +1772,7 @@ static int srpt_rx_mgmt_fn_tag(struct srpt_send_ioctx *ioctx, u64 tag)
for (i = 0; i < ch->rq_size; ++i) {
target = ch->ioctx_ring[i];
if (target->cmd.se_lun == ioctx->cmd.se_lun &&
target->tag == tag &&
target->cmd.tag == tag &&
srpt_get_cmd_state(target) != SRPT_STATE_DONE) {
ret = 0;
/* now let the target core abort &target->cmd; */
......@@ -1831,7 +1831,7 @@ static void srpt_handle_tsk_mgmt(struct srpt_rdma_ch *ch,
srp_tsk->task_tag, srp_tsk->tag, ch->cm_id, ch->sess);
srpt_set_cmd_state(send_ioctx, SRPT_STATE_MGMT);
send_ioctx->tag = srp_tsk->tag;
send_ioctx->cmd.tag = srp_tsk->tag;
tcm_tmr = srp_tmr_to_tcm(srp_tsk->tsk_mgmt_func);
if (tcm_tmr < 0) {
send_ioctx->cmd.se_tmr_req->response =
......@@ -2979,7 +2979,7 @@ static int srpt_write_pending(struct se_cmd *se_cmd)
case CH_DRAINING:
case CH_RELEASING:
pr_debug("cmd with tag %lld: channel disconnecting\n",
ioctx->tag);
ioctx->cmd.tag);
srpt_set_cmd_state(ioctx, SRPT_STATE_DATA_IN);
ret = -EINVAL;
goto out;
......@@ -3054,24 +3054,24 @@ static void srpt_queue_response(struct se_cmd *cmd)
ret = srpt_xfer_data(ch, ioctx);
if (ret) {
pr_err("xfer_data failed for tag %llu\n",
ioctx->tag);
ioctx->cmd.tag);
return;
}
}
if (state != SRPT_STATE_MGMT)
resp_len = srpt_build_cmd_rsp(ch, ioctx, ioctx->tag,
resp_len = srpt_build_cmd_rsp(ch, ioctx, ioctx->cmd.tag,
cmd->scsi_status);
else {
srp_tm_status
= tcm_to_srp_tsk_mgmt_status(cmd->se_tmr_req->response);
resp_len = srpt_build_tskmgmt_rsp(ch, ioctx, srp_tm_status,
ioctx->tag);
ioctx->cmd.tag);
}
ret = srpt_post_send(ch, ioctx, resp_len);
if (ret) {
pr_err("sending cmd response failed for tag %llu\n",
ioctx->tag);
ioctx->cmd.tag);
srpt_unmap_sg_to_ib_sge(ch, ioctx);
srpt_set_cmd_state(ioctx, SRPT_STATE_DONE);
target_put_sess_cmd(&ioctx->cmd);
......@@ -3479,14 +3479,6 @@ static void srpt_set_default_node_attrs(struct se_node_acl *nacl)
{
}
static u32 srpt_get_task_tag(struct se_cmd *se_cmd)
{
struct srpt_send_ioctx *ioctx;
ioctx = container_of(se_cmd, struct srpt_send_ioctx, cmd);
return ioctx->tag;
}
/* Note: only used from inside debug printk's by the TCM core. */
static int srpt_get_tcm_cmd_state(struct se_cmd *se_cmd)
{
......@@ -3838,7 +3830,6 @@ static const struct target_core_fabric_ops srpt_template = {
.write_pending = srpt_write_pending,
.write_pending_status = srpt_write_pending_status,
.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_data_in,
.queue_status = srpt_queue_status,
......
......@@ -238,7 +238,6 @@ struct srpt_send_ioctx {
bool rdma_aborted;
struct se_cmd cmd;
struct completion tx_done;
u64 tag;
int sg_cnt;
int mapped_sg_count;
u16 n_rdma_ius;
......
......@@ -1191,7 +1191,7 @@ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) {
struct qla_tgt_cmd *cmd =
container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
if (cmd->tag == abts->exchange_addr_to_abort) {
if (se_cmd->tag == abts->exchange_addr_to_abort) {
lun = cmd->unpacked_lun;
found_lun = true;
break;
......@@ -1728,9 +1728,8 @@ static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
if (unlikely(cmd->aborted)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
"qla_target(%d): terminating exchange "
"for aborted cmd=%p (se_cmd=%p, tag=%d)", vha->vp_idx, cmd,
se_cmd, cmd->tag);
"qla_target(%d): terminating exchange for aborted cmd=%p (se_cmd=%p, tag=%lld)",
vha->vp_idx, cmd, se_cmd, se_cmd->tag);
cmd->state = QLA_TGT_STATE_ABORTED;
cmd->cmd_flags |= BIT_6;
......@@ -1765,18 +1764,17 @@ static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
prm->residual = se_cmd->residual_count;
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x305c,
"Residual underflow: %d (tag %d, "
"op %x, bufflen %d, rq_result %x)\n", prm->residual,
cmd->tag, se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
cmd->bufflen, prm->rq_result);
"Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
prm->residual, se_cmd->tag,
se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
cmd->bufflen, prm->rq_result);
prm->rq_result |= SS_RESIDUAL_UNDER;
} else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
prm->residual = se_cmd->residual_count;
ql_dbg(ql_dbg_io, vha, 0x305d,
"Residual overflow: %d (tag %d, "
"op %x, bufflen %d, rq_result %x)\n", prm->residual,
cmd->tag, se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
cmd->bufflen, prm->rq_result);
"Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
prm->residual, se_cmd->tag, se_cmd->t_task_cdb ?
se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result);
prm->rq_result |= SS_RESIDUAL_OVER;
}
......@@ -1849,7 +1847,7 @@ static void qlt_check_srr_debug(struct qla_tgt_cmd *cmd, int *xmit_type)
== 50) {
*xmit_type &= ~QLA_TGT_XMIT_STATUS;
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf015,
"Dropping cmd %p (tag %d) status", cmd, cmd->tag);
"Dropping cmd %p (tag %d) status", cmd, se_cmd->tag);
}
#endif
/*
......@@ -1873,7 +1871,7 @@ static void qlt_check_srr_debug(struct qla_tgt_cmd *cmd, int *xmit_type)
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf016,
"Cutting cmd %p (tag %d) buffer"
" tail to len %d, sg_cnt %d (cmd->bufflen %d,"
" cmd->sg_cnt %d)", cmd, cmd->tag, tot_len, leave,
" cmd->sg_cnt %d)", cmd, se_cmd->tag, tot_len, leave,
cmd->bufflen, cmd->sg_cnt);
cmd->bufflen = tot_len;
......@@ -1885,13 +1883,13 @@ static void qlt_check_srr_debug(struct qla_tgt_cmd *cmd, int *xmit_type)
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf017,
"Cutting cmd %p (tag %d) buffer head "
"to offset %d (cmd->bufflen %d)", cmd, cmd->tag, offset,
"to offset %d (cmd->bufflen %d)", cmd, se_cmd->tag, offset,
cmd->bufflen);
if (offset == 0)
*xmit_type &= ~QLA_TGT_XMIT_DATA;
else if (qlt_set_data_offset(cmd, offset)) {
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf018,
"qlt_set_data_offset() failed (tag %d)", cmd->tag);
"qlt_set_data_offset() failed (tag %d)", se_cmd->tag);
}
}
}
......@@ -3194,7 +3192,7 @@ skip_term:
return;
} else if (cmd->state == QLA_TGT_STATE_ABORTED) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
"Aborted command %p (tag %d) finished\n", cmd, cmd->tag);
"Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag);
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
"qla_target(%d): A command in state (%d) should "
......@@ -3266,7 +3264,7 @@ static void __qlt_do_work(struct qla_tgt_cmd *cmd)
goto out_term;
cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
cmd->tag = atio->u.isp24.exchange_addr;
cmd->se_cmd.tag = atio->u.isp24.exchange_addr;
cmd->unpacked_lun = scsilun_to_int(
(struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
......@@ -3891,9 +3889,8 @@ static void qlt_handle_srr(struct scsi_qla_host *vha,
resp = 1;
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf064,
"qla_target(%d): SRR for in data for cmd "
"without them (tag %d, SCSI status %d), "
"reject", vha->vp_idx, cmd->tag,
"qla_target(%d): SRR for in data for cmd without them (tag %lld, SCSI status %d), reject",
vha->vp_idx, se_cmd->tag,
cmd->se_cmd.scsi_status);
goto out_reject;
}
......@@ -3927,10 +3924,8 @@ static void qlt_handle_srr(struct scsi_qla_host *vha,
}
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf066,
"qla_target(%d): SRR for out data for cmd "
"without them (tag %d, SCSI status %d), "
"reject", vha->vp_idx, cmd->tag,
cmd->se_cmd.scsi_status);
"qla_target(%d): SRR for out data for cmd without them (tag %lld, SCSI status %d), reject",
vha->vp_idx, se_cmd->tag, cmd->se_cmd.scsi_status);
goto out_reject;
}
break;
......@@ -4051,10 +4046,9 @@ restart:
cmd->sg = se_cmd->t_data_sg;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf02c,
"SRR cmd %p (se_cmd %p, tag %d, op %x), "
"sg_cnt=%d, offset=%d", cmd, &cmd->se_cmd, cmd->tag,
se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
cmd->sg_cnt, cmd->offset);
"SRR cmd %p (se_cmd %p, tag %lld, op %x), sg_cnt=%d, offset=%d",
cmd, &cmd->se_cmd, se_cmd->tag, se_cmd->t_task_cdb ?
se_cmd->t_task_cdb[0] : 0, cmd->sg_cnt, cmd->offset);
qlt_handle_srr(vha, sctio, imm);
......
......@@ -924,7 +924,6 @@ struct qla_tgt_cmd {
int sg_cnt; /* SG segments count */
int bufflen; /* cmd buffer length */
int offset;
uint32_t tag;
uint32_t unpacked_lun;
enum dma_data_direction dma_data_direction;
uint32_t reset_count;
......
......@@ -421,19 +421,6 @@ static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl)
return;
}
static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd)
{
struct qla_tgt_cmd *cmd;
/* check for task mgmt cmd */
if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
return 0xffffffff;
cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
return cmd->tag;
}
static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
......@@ -1865,7 +1852,6 @@ static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
.write_pending = tcm_qla2xxx_write_pending,
.write_pending_status = tcm_qla2xxx_write_pending_status,
.set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
.get_task_tag = tcm_qla2xxx_get_task_tag,
.get_cmd_state = tcm_qla2xxx_get_cmd_state,
.queue_data_in = tcm_qla2xxx_queue_data_in,
.queue_status = tcm_qla2xxx_queue_status,
......@@ -1910,7 +1896,6 @@ static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
.write_pending = tcm_qla2xxx_write_pending,
.write_pending_status = tcm_qla2xxx_write_pending_status,
.set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
.get_task_tag = tcm_qla2xxx_get_task_tag,
.get_cmd_state = tcm_qla2xxx_get_cmd_state,
.queue_data_in = tcm_qla2xxx_queue_data_in,
.queue_status = tcm_qla2xxx_queue_status,
......
......@@ -1008,6 +1008,8 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
if (cmd->sense_reason)
goto attach_cmd;
/* only used for printks or comparing with ->ref_task_tag */
cmd->se_cmd.tag = (__force u32)cmd->init_task_tag;
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) {
......
......@@ -1692,14 +1692,6 @@ static char *iscsi_get_fabric_name(void)
return "iSCSI";
}
static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
{
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
/* only used for printks or comparism with ->ref_task_tag */
return (__force u32)cmd->init_task_tag;
}
static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
{
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
......@@ -1938,7 +1930,6 @@ const struct target_core_fabric_ops iscsi_ops = {
.write_pending = lio_write_pending,
.write_pending_status = lio_write_pending_status,
.set_default_node_attributes = lio_set_default_node_attributes,
.get_task_tag = iscsi_get_task_tag,
.get_cmd_state = iscsi_get_cmd_state,
.queue_data_in = lio_queue_data_in,
.queue_status = lio_queue_status,
......
......@@ -165,6 +165,7 @@ static void tcm_loop_submission_work(struct work_struct *work)
transfer_length = scsi_bufflen(sc);
}
se_cmd->tag = tl_cmd->sc_cmd_tag;
rc = target_submit_cmd_map_sgls(se_cmd, tl_nexus->se_sess, sc->cmnd,
&tl_cmd->tl_sense_buf[0], tl_cmd->sc->device->lun,
transfer_length, TCM_SIMPLE_TAG,
......@@ -597,14 +598,6 @@ static void tcm_loop_set_default_node_attributes(struct se_node_acl *se_acl)
return;
}
static u32 tcm_loop_get_task_tag(struct se_cmd *se_cmd)
{
struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
struct tcm_loop_cmd, tl_se_cmd);
return tl_cmd->sc_cmd_tag;
}
static int tcm_loop_get_cmd_state(struct se_cmd *se_cmd)
{
struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
......@@ -1259,7 +1252,6 @@ static const struct target_core_fabric_ops loop_ops = {
.write_pending = tcm_loop_write_pending,
.write_pending_status = tcm_loop_write_pending_status,
.set_default_node_attributes = tcm_loop_set_default_node_attributes,
.get_task_tag = tcm_loop_get_task_tag,
.get_cmd_state = tcm_loop_get_cmd_state,
.queue_data_in = tcm_loop_queue_data_in,
.queue_status = tcm_loop_queue_status,
......
......@@ -1234,6 +1234,8 @@ static void sbp_handle_command(struct sbp_target_request *req)
pr_debug("sbp_handle_command ORB:0x%llx unpacked_lun:%d data_len:%d data_dir:%d\n",
req->orb_pointer, unpacked_lun, data_length, data_dir);
/* only used for printk until we do TMRs */
req->se_cmd.tag = req->orb_pointer;
if (target_submit_cmd(&req->se_cmd, sess->se_sess, req->cmd_buf,
req->sense_buf, unpacked_lun, data_length,
TCM_SIMPLE_TAG, data_dir, 0))
......@@ -1768,15 +1770,6 @@ static void sbp_set_default_node_attrs(struct se_node_acl *nacl)
return;
}
static u32 sbp_get_task_tag(struct se_cmd *se_cmd)
{
struct sbp_target_request *req = container_of(se_cmd,
struct sbp_target_request, se_cmd);
/* only used for printk until we do TMRs */
return (u32)req->orb_pointer;
}
static int sbp_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
......@@ -2377,7 +2370,6 @@ static const struct target_core_fabric_ops sbp_ops = {
.write_pending = sbp_write_pending,
.write_pending_status = sbp_write_pending_status,
.set_default_node_attributes = sbp_set_default_node_attrs,
.get_task_tag = sbp_get_task_tag,
.get_cmd_state = sbp_get_cmd_state,
.queue_data_in = sbp_queue_data_in,
.queue_status = sbp_queue_status,
......
......@@ -374,10 +374,6 @@ static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo)
pr_err("Missing tfo->set_default_node_attributes()\n");
return -EINVAL;
}
if (!tfo->get_task_tag) {
pr_err("Missing tfo->get_task_tag()\n");
return -EINVAL;
}
if (!tfo->get_cmd_state) {
pr_err("Missing tfo->get_cmd_state()\n");
return -EINVAL;
......
......@@ -117,7 +117,7 @@ void core_tmr_abort_task(
{
struct se_cmd *se_cmd;
unsigned long flags;
int ref_tag;
u64 ref_tag;
spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) {
......@@ -129,16 +129,17 @@ void core_tmr_abort_task(
if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
continue;
ref_tag = se_cmd->se_tfo->get_task_tag(se_cmd);
ref_tag = se_cmd->tag;
if (tmr->ref_task_tag != ref_tag)
continue;
printk("ABORT_TASK: Found referenced %s task_tag: %u\n",
printk("ABORT_TASK: Found referenced %s task_tag: %llu\n",
se_cmd->se_tfo->get_fabric_name(), ref_tag);
spin_lock(&se_cmd->t_state_lock);
if (se_cmd->transport_state & CMD_T_COMPLETE) {
printk("ABORT_TASK: ref_tag: %u already complete, skipping\n", ref_tag);
printk("ABORT_TASK: ref_tag: %llu already complete,"
" skipping\n", ref_tag);
spin_unlock(&se_cmd->t_state_lock);
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
goto out;
......@@ -157,14 +158,14 @@ void core_tmr_abort_task(
transport_cmd_finish_abort(se_cmd, true);
printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for"
" ref_tag: %d\n", ref_tag);
" ref_tag: %llu\n", ref_tag);
tmr->response = TMR_FUNCTION_COMPLETE;
return;
}
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
out:
printk("ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: %d\n",
printk("ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: %lld\n",
tmr->ref_task_tag);
tmr->response = TMR_TASK_DOES_NOT_EXIST;
}
......@@ -289,16 +290,16 @@ static void core_tmr_drain_state_list(
list_del(&cmd->state_list);
pr_debug("LUN_RESET: %s cmd: %p"
" ITT/CmdSN: 0x%08x/0x%08x, i_state: %d, t_state: %d"
" ITT/CmdSN: 0x%08llx/0x%08x, i_state: %d, t_state: %d"
"cdb: 0x%02x\n",
(preempt_and_abort_list) ? "Preempt" : "", cmd,
cmd->se_tfo->get_task_tag(cmd), 0,
cmd->tag, 0,
cmd->se_tfo->get_cmd_state(cmd), cmd->t_state,
cmd->t_task_cdb[0]);
pr_debug("LUN_RESET: ITT[0x%08x] - pr_res_key: 0x%016Lx"
pr_debug("LUN_RESET: ITT[0x%08llx] - pr_res_key: 0x%016Lx"
" -- CMD_T_ACTIVE: %d"
" CMD_T_STOP: %d CMD_T_SENT: %d\n",
cmd->se_tfo->get_task_tag(cmd), cmd->pr_res_key,
cmd->tag, cmd->pr_res_key,
(cmd->transport_state & CMD_T_ACTIVE) != 0,
(cmd->transport_state & CMD_T_STOP) != 0,
(cmd->transport_state & CMD_T_SENT) != 0);
......
......@@ -600,9 +600,8 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists,
* this command for frontend exceptions.
*/
if (cmd->transport_state & CMD_T_STOP) {
pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n",
__func__, __LINE__,
cmd->se_tfo->get_task_tag(cmd));
pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n",
__func__, __LINE__, cmd->tag);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
......@@ -1155,6 +1154,8 @@ target_cmd_size_check(struct se_cmd *cmd, unsigned int size)
/*
* Used by fabric modules containing a local struct se_cmd within their
* fabric dependent per I/O descriptor.
*
* Preserves the value of @cmd->tag.
*/
void transport_init_se_cmd(
struct se_cmd *cmd,
......@@ -1380,6 +1381,8 @@ transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *sgl,
* @sgl_prot: struct scatterlist memory protection information
* @sgl_prot_count: scatterlist count for protection information
*
* Task tags are supported if the caller has set @se_cmd->tag.
*
* Returns non zero to signal active I/O shutdown failure. All other
* setup exceptions will be returned as a SCSI CHECK_CONDITION response,
* but still return zero here.
......@@ -1512,6 +1515,8 @@ EXPORT_SYMBOL(target_submit_cmd_map_sgls);
* @data_dir: DMA data direction
* @flags: flags for command submission from target_sc_flags_tables
*
* Task tags are supported if the caller has set @se_cmd->tag.
*
* Returns non zero to signal active I/O shutdown failure. All other
* setup exceptions will be returned as a SCSI CHECK_CONDITION response,
* but still return zero here.
......@@ -1639,9 +1644,8 @@ void transport_generic_request_failure(struct se_cmd *cmd,
{
int ret = 0;
pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08x"
" CDB: 0x%02x\n", cmd, cmd->se_tfo->get_task_tag(cmd),
cmd->t_task_cdb[0]);
pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08llx"
" CDB: 0x%02x\n", cmd, cmd->tag, cmd->t_task_cdb[0]);
pr_debug("-----[ i_state: %d t_state: %d sense_reason: %d\n",
cmd->se_tfo->get_cmd_state(cmd),
cmd->t_state, sense_reason);
......@@ -1849,9 +1853,8 @@ void target_execute_cmd(struct se_cmd *cmd)
*/
spin_lock_irq(&cmd->t_state_lock);
if (cmd->transport_state & CMD_T_STOP) {
pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n",
__func__, __LINE__,
cmd->se_tfo->get_task_tag(cmd));
pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n",
__func__, __LINE__, cmd->tag);
spin_unlock_irq(&cmd->t_state_lock);
complete_all(&cmd->t_transport_stop_comp);
......@@ -2658,10 +2661,8 @@ bool transport_wait_for_tasks(struct se_cmd *cmd)
cmd->transport_state |= CMD_T_STOP;
pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08x"
" i_state: %d, t_state: %d, CMD_T_STOP\n",
cmd, cmd->se_tfo->get_task_tag(cmd),
cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d, t_state: %d, CMD_T_STOP\n",
cmd, cmd->tag, cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
......@@ -2670,9 +2671,8 @@ bool transport_wait_for_tasks(struct se_cmd *cmd)
spin_lock_irqsave(&cmd->t_state_lock, flags);
cmd->transport_state &= ~(CMD_T_ACTIVE | CMD_T_STOP);
pr_debug("wait_for_tasks: Stopped wait_for_completion("
"&cmd->t_transport_stop_comp) for ITT: 0x%08x\n",
cmd->se_tfo->get_task_tag(cmd));
pr_debug("wait_for_tasks: Stopped wait_for_completion(&cmd->t_transport_stop_comp) for ITT: 0x%08llx\n",
cmd->tag);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
......@@ -2974,8 +2974,8 @@ int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS))
return 1;
pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08x\n",
cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd));
pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08llx\n",
cmd->t_task_cdb[0], cmd->tag);
cmd->se_cmd_flags &= ~SCF_SEND_DELAYED_TAS;
cmd->scsi_status = SAM_STAT_TASK_ABORTED;
......@@ -3014,9 +3014,8 @@ void transport_send_task_abort(struct se_cmd *cmd)
transport_lun_remove_cmd(cmd);
pr_debug("Setting SAM_STAT_TASK_ABORTED status for CDB: 0x%02x,"
" ITT: 0x%08x\n", cmd->t_task_cdb[0],
cmd->se_tfo->get_task_tag(cmd));
pr_debug("Setting SAM_STAT_TASK_ABORTED status for CDB: 0x%02x, ITT: 0x%08llx\n",
cmd->t_task_cdb[0], cmd->tag);
trace_target_cmd_complete(cmd);
cmd->se_tfo->queue_status(cmd);
......
......@@ -359,11 +359,6 @@ static char *xcopy_pt_get_fabric_name(void)
return "xcopy-pt";
}
static u32 xcopy_pt_get_tag(struct se_cmd *se_cmd)
{
return 0;
}
static int xcopy_pt_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
......@@ -424,7 +419,6 @@ static int xcopy_pt_queue_status(struct se_cmd *se_cmd)
static const struct target_core_fabric_ops xcopy_pt_tfo = {
.get_fabric_name = xcopy_pt_get_fabric_name,
.get_task_tag = xcopy_pt_get_tag,
.get_cmd_state = xcopy_pt_get_cmd_state,
.release_cmd = xcopy_pt_release_cmd,
.check_stop_free = xcopy_pt_check_stop_free,
......@@ -575,6 +569,7 @@ static int target_xcopy_setup_pt_cmd(
xpt_cmd->xcopy_op = xop;
target_xcopy_setup_pt_port(xpt_cmd, xop, remote_port);
cmd->tag = 0;
sense_rc = target_setup_cmd_from_cdb(cmd, cdb);
if (sense_rc) {
ret = -EINVAL;
......
......@@ -157,7 +157,6 @@ int ft_queue_status(struct se_cmd *);
int ft_queue_data_in(struct se_cmd *);
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 *);
void ft_queue_tm_resp(struct se_cmd *);
void ft_aborted_task(struct se_cmd *);
......
......@@ -247,15 +247,6 @@ int ft_write_pending(struct se_cmd *se_cmd)
return 0;
}
u32 ft_get_task_tag(struct se_cmd *se_cmd)
{
struct ft_cmd *cmd = container_of(se_cmd, struct ft_cmd, se_cmd);