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

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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: Bart 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: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Bart Van Assche 2015-04-14 13:26:44 +02:00 committed by Nicholas Bellinger
parent 2650d71e24
commit 649ee05499
22 changed files with 76 additions and 182 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/target/tcm_mod_builder.py
View File

@ -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"

27
drivers/infiniband/ulp/srpt/ib_srpt.c
View File

@ -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,

1
drivers/infiniband/ulp/srpt/ib_srpt.h
View File

@ -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;

52
drivers/scsi/qla2xxx/qla_target.c
View File

@ -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);

1
drivers/scsi/qla2xxx/qla_target.h
View File

@ -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;

15
drivers/scsi/qla2xxx/tcm_qla2xxx.c
View File

@ -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,

2
drivers/target/iscsi/iscsi_target.c
View File

@ -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) {

9
drivers/target/iscsi/iscsi_target_configfs.c
View File

@ -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,

10
drivers/target/loopback/tcm_loop.c
View File

@ -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,

12
drivers/target/sbp/sbp_target.c
View File

@ -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,

4
drivers/target/target_core_configfs.c
View File

@ -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;

21
drivers/target/target_core_tmr.c
View File

@ -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);

41
drivers/target/target_core_transport.c
View File

@ -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);

7
drivers/target/target_core_xcopy.c
View File

@ -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;

1
drivers/target/tcm_fc/tcm_fc.h
View File

@ -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 *);

10
drivers/target/tcm_fc/tfc_cmd.c
View File

@ -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);
if (cmd->aborted)
return ~0;
return fc_seq_exch(cmd->seq)->rxid;
}
int ft_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@ -568,6 +559,7 @@ static void ft_send_work(struct work_struct *work)
}
fc_seq_exch(cmd->seq)->lp->tt.seq_set_resp(cmd->seq, ft_recv_seq, cmd);
cmd->se_cmd.tag = fc_seq_exch(cmd->seq)->rxid;
/*
* Use a single se_cmd->cmd_kref as we expect to release se_cmd
* directly from ft_check_stop_free callback in response path.

1
drivers/target/tcm_fc/tfc_conf.c
View File

@ -468,7 +468,6 @@ static const struct target_core_fabric_ops ft_fabric_ops = {
.write_pending = ft_write_pending,
.write_pending_status = ft_write_pending_status,
.set_default_node_attributes = ft_set_default_node_attr,
.get_task_tag = ft_get_task_tag,
.get_cmd_state = ft_get_cmd_state,
.queue_data_in = ft_queue_data_in,
.queue_status = ft_queue_status,

15
drivers/usb/gadget/legacy/tcm_usb_gadget.c
View File

@ -1112,6 +1112,7 @@ static int usbg_submit_command(struct f_uas *fu,
memcpy(cmd->cmd_buf, cmd_iu->cdb, cmd_len);
cmd->tag = be16_to_cpup(&cmd_iu->tag);
cmd->se_cmd.tag = cmd->tag;
if (fu->flags & USBG_USE_STREAMS) {
if (cmd->tag > UASP_SS_EP_COMP_NUM_STREAMS)
goto err;
@ -1245,6 +1246,7 @@ static int bot_submit_command(struct f_uas *fu,
cmd->unpacked_lun = cbw->Lun;
cmd->is_read = cbw->Flags & US_BULK_FLAG_IN ? 1 : 0;
cmd->data_len = le32_to_cpu(cbw->DataTransferLength);
cmd->se_cmd.tag = le32_to_cpu(cmd->bot_tag);
INIT_WORK(&cmd->work, bot_cmd_work);
ret = queue_work(tpg->workqueue, &cmd->work);
@ -1340,18 +1342,6 @@ static void usbg_set_default_node_attrs(struct se_node_acl *nacl)
return;
}
static u32 usbg_get_task_tag(struct se_cmd *se_cmd)
{
struct usbg_cmd *cmd = container_of(se_cmd, struct usbg_cmd,
se_cmd);
struct f_uas *fu = cmd->fu;
if (fu->flags & USBG_IS_BOT)
return le32_to_cpu(cmd->bot_tag);
else
return cmd->tag;
}
static int usbg_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@ -1739,7 +1729,6 @@ static const struct target_core_fabric_ops usbg_ops = {
.write_pending = usbg_send_write_request,
.write_pending_status = usbg_write_pending_status,
.set_default_node_attributes = usbg_set_default_node_attrs,
.get_task_tag = usbg_get_task_tag,
.get_cmd_state = usbg_get_cmd_state,
.queue_data_in = usbg_send_read_response,
.queue_status = usbg_send_status_response,

7
drivers/vhost/scsi.c
View File

@ -369,11 +369,6 @@ static void vhost_scsi_set_default_node_attrs(struct se_node_acl *nacl)
return;
}
static u32 vhost_scsi_get_task_tag(struct se_cmd *se_cmd)
{
return 0;
}
static int vhost_scsi_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@ -818,6 +813,7 @@ static void vhost_scsi_submission_work(struct work_struct *work)
}
tv_nexus = cmd->tvc_nexus;
se_cmd->tag = 0;
rc = target_submit_cmd_map_sgls(se_cmd, tv_nexus->tvn_se_sess,
cmd->tvc_cdb, &cmd->tvc_sense_buf[0],
cmd->tvc_lun, cmd->tvc_exp_data_len,
@ -2148,7 +2144,6 @@ static struct target_core_fabric_ops vhost_scsi_ops = {
.write_pending = vhost_scsi_write_pending,
.write_pending_status = vhost_scsi_write_pending_status,
.set_default_node_attributes = vhost_scsi_set_default_node_attrs,
.get_task_tag = vhost_scsi_get_task_tag,
.get_cmd_state = vhost_scsi_get_cmd_state,
.queue_data_in = vhost_scsi_queue_data_in,
.queue_status = vhost_scsi_queue_status,

10
drivers/xen/xen-scsiback.c
View File

@ -400,6 +400,7 @@ static void scsiback_cmd_exec(struct vscsibk_pend *pending_req)
memset(se_cmd, 0, sizeof(*se_cmd));
scsiback_get(pending_req->info);
se_cmd->tag = pending_req->rqid;
rc = target_submit_cmd_map_sgls(se_cmd, sess, pending_req->cmnd,
pending_req->sense_buffer, pending_req->v2p->lun,
pending_req->data_len, 0,
@ -1394,14 +1395,6 @@ static void scsiback_set_default_node_attrs(struct se_node_acl *nacl)
{
}
static u32 scsiback_get_task_tag(struct se_cmd *se_cmd)
{
struct vscsibk_pend *pending_req = container_of(se_cmd,
struct vscsibk_pend, se_cmd);
return pending_req->rqid;
}
static int scsiback_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@ -1833,7 +1826,6 @@ static const struct target_core_fabric_ops scsiback_ops = {
.write_pending = scsiback_write_pending,
.write_pending_status = scsiback_write_pending_status,
.set_default_node_attributes = scsiback_set_default_node_attrs,
.get_task_tag = scsiback_get_task_tag,
.get_cmd_state = scsiback_get_cmd_state,
.queue_data_in = scsiback_queue_data_in,
.queue_status = scsiback_queue_status,

3
include/target/target_core_base.h
View File

@ -420,7 +420,7 @@ struct se_tmr_req {
u8 response;
int call_transport;
/* Reference to ITT that Task Mgmt should be performed */
u32 ref_task_tag;
u64 ref_task_tag;
void *fabric_tmr_ptr;
struct se_cmd *task_cmd;
struct se_device *tmr_dev;
@ -473,6 +473,7 @@ struct se_cmd {
u8 scsi_asc;
u8 scsi_ascq;
u16 scsi_sense_length;
u64 tag; /* SAM command identifier aka task tag */
/* Delay for ALUA Active/NonOptimized state access in milliseconds */
int alua_nonop_delay;
/* See include/linux/dma-mapping.h */

1
include/target/target_core_fabric.h
View File

@ -53,7 +53,6 @@ struct target_core_fabric_ops {
int (*write_pending)(struct se_cmd *);
int (*write_pending_status)(struct se_cmd *);
void (*set_default_node_attributes)(struct se_node_acl *);
u32 (*get_task_tag)(struct se_cmd *);
int (*get_cmd_state)(struct se_cmd *);
int (*queue_data_in)(struct se_cmd *);
int (*queue_status)(struct se_cmd *);