This allows target_get_sess_cmd users to pass in the cmd counter they want
to use. Right now we pass in the session's cmd counter but in the next
patch iSCSI will switch from per session to per conn so this patch will be
needed for that conversion.
Signed-off-by: Mike Christie <michael.christie@xxxxxxxxxx>
---
drivers/target/iscsi/iscsi_target.c | 10 +++++----
drivers/target/target_core_transport.c | 28 ++++++++++++--------------
drivers/target/target_core_xcopy.c | 8 ++++----
drivers/usb/gadget/function/f_tcm.c | 4 ++--
include/target/target_core_fabric.h | 8 +++++---
5 files changed, 30 insertions(+), 28 deletions(-)
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index baf4da7bb3b4..87927a36f90d 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1190,9 +1190,10 @@ int iscsit_setup_scsi_cmd(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
* Initialize struct se_cmd descriptor from target_core_mod infrastructure
*/
__target_init_cmd(&cmd->se_cmd, &iscsi_ops,
- conn->sess->se_sess, be32_to_cpu(hdr->data_length),
- cmd->data_direction, sam_task_attr,
- cmd->sense_buffer + 2, scsilun_to_int(&hdr->lun));
+ conn->sess->se_sess, be32_to_cpu(hdr->data_length),
+ cmd->data_direction, sam_task_attr,
+ cmd->sense_buffer + 2, scsilun_to_int(&hdr->lun),
+ conn->sess->se_sess->cmd_cnt);
pr_debug("Got SCSI Command, ITT: 0x%08x, CmdSN: 0x%08x,"
" ExpXferLen: %u, Length: %u, CID: %hu\n", hdr->itt,
@@ -2055,7 +2056,8 @@ iscsit_handle_task_mgt_cmd(struct iscsit_conn *conn, struct iscsit_cmd *cmd,
__target_init_cmd(&cmd->se_cmd, &iscsi_ops,
conn->sess->se_sess, 0, DMA_NONE,
TCM_SIMPLE_TAG, cmd->sense_buffer + 2,
- scsilun_to_int(&hdr->lun));
+ scsilun_to_int(&hdr->lun),
+ conn->sess->se_sess->cmd_cnt);
target_get_sess_cmd(&cmd->se_cmd, true);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 60647a49a1d3..c395606ab1a9 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1441,14 +1441,12 @@ target_cmd_size_check(struct se_cmd *cmd, unsigned int size)
*
* Preserves the value of @cmd->tag.
*/
-void __target_init_cmd(
- struct se_cmd *cmd,
- const struct target_core_fabric_ops *tfo,
- struct se_session *se_sess,
- u32 data_length,
- int data_direction,
- int task_attr,
- unsigned char *sense_buffer, u64 unpacked_lun)
+void __target_init_cmd(struct se_cmd *cmd,
+ const struct target_core_fabric_ops *tfo,
+ struct se_session *se_sess, u32 data_length,
+ int data_direction, int task_attr,
+ unsigned char *sense_buffer, u64 unpacked_lun,
+ struct target_cmd_counter *cmd_cnt)
{
INIT_LIST_HEAD(&cmd->se_delayed_node);
INIT_LIST_HEAD(&cmd->se_qf_node);
@@ -1468,6 +1466,7 @@ void __target_init_cmd(
cmd->sam_task_attr = task_attr;
cmd->sense_buffer = sense_buffer;
cmd->orig_fe_lun = unpacked_lun;
+ cmd->cmd_cnt = cmd_cnt;
if (!(cmd->se_cmd_flags & SCF_USE_CPUID))
cmd->cpuid = raw_smp_processor_id();
@@ -1687,7 +1686,8 @@ int target_init_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
* target_core_fabric_ops->queue_status() callback
*/
__target_init_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, data_length,
- data_dir, task_attr, sense, unpacked_lun);
+ data_dir, task_attr, sense, unpacked_lun,
+ se_sess->cmd_cnt);
/*
* Obtain struct se_cmd->cmd_kref reference. A second kref_get here is
@@ -1982,7 +1982,8 @@ int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
BUG_ON(!se_tpg);
__target_init_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess,
- 0, DMA_NONE, TCM_SIMPLE_TAG, sense, unpacked_lun);
+ 0, DMA_NONE, TCM_SIMPLE_TAG, sense, unpacked_lun,
+ se_sess->cmd_cnt);
/*
* FIXME: Currently expect caller to handle se_cmd->se_tmr_req
* allocation failure.
@@ -2986,7 +2987,6 @@ EXPORT_SYMBOL(transport_generic_free_cmd);
*/
int target_get_sess_cmd(struct se_cmd *se_cmd, bool ack_kref)
{
- struct se_session *se_sess = se_cmd->se_sess;
int ret = 0;
/*
@@ -3003,11 +3003,9 @@ int target_get_sess_cmd(struct se_cmd *se_cmd, bool ack_kref)
* Users like xcopy do not use counters since they never do a stop
* and wait.
*/
- if (se_sess->cmd_cnt) {
- if (!percpu_ref_tryget_live(&se_sess->cmd_cnt->refcnt))
+ if (se_cmd->cmd_cnt) {
+ if (!percpu_ref_tryget_live(&se_cmd->cmd_cnt->refcnt))
ret = -ESHUTDOWN;
- else
- se_cmd->cmd_cnt = se_sess->cmd_cnt;
}
if (ret && ack_kref)
target_put_sess_cmd(se_cmd);
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 49a83500c8b7..91ed015b588c 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -591,8 +591,8 @@ static int target_xcopy_read_source(
(unsigned long long)src_lba, transfer_length_block, src_bytes);
__target_init_cmd(se_cmd, &xcopy_pt_tfo, &xcopy_pt_sess, src_bytes,
- DMA_FROM_DEVICE, 0, &xpt_cmd.sense_buffer[0], 0);
-
+ DMA_FROM_DEVICE, 0, &xpt_cmd.sense_buffer[0], 0,
+ NULL);
rc = target_xcopy_setup_pt_cmd(&xpt_cmd, xop, src_dev, &cdb[0],
remote_port);
if (rc < 0) {
@@ -636,8 +636,8 @@ static int target_xcopy_write_destination(
(unsigned long long)dst_lba, transfer_length_block, dst_bytes);
__target_init_cmd(se_cmd, &xcopy_pt_tfo, &xcopy_pt_sess, dst_bytes,
- DMA_TO_DEVICE, 0, &xpt_cmd.sense_buffer[0], 0);
-
+ DMA_TO_DEVICE, 0, &xpt_cmd.sense_buffer[0], 0,
+ NULL);
rc = target_xcopy_setup_pt_cmd(&xpt_cmd, xop, dst_dev, &cdb[0],
remote_port);
if (rc < 0) {
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c
index 658e2e21fdd0..c21acebe8aae 100644
--- a/drivers/usb/gadget/function/f_tcm.c
+++ b/drivers/usb/gadget/function/f_tcm.c
@@ -1054,7 +1054,7 @@ static void usbg_cmd_work(struct work_struct *work)
tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo,
tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE,
cmd->prio_attr, cmd->sense_iu.sense,
- cmd->unpacked_lun);
+ cmd->unpacked_lun, NULL);
goto out;
}
@@ -1183,7 +1183,7 @@ static void bot_cmd_work(struct work_struct *work)
tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo,
tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE,
cmd->prio_attr, cmd->sense_iu.sense,
- cmd->unpacked_lun);
+ cmd->unpacked_lun, NULL);
goto out;
}
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 65527174b8bc..d507e7885f17 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -151,9 +151,11 @@ void transport_deregister_session_configfs(struct se_session *);
void transport_deregister_session(struct se_session *);
-void __target_init_cmd(struct se_cmd *,
- const struct target_core_fabric_ops *,
- struct se_session *, u32, int, int, unsigned char *, u64);
+void __target_init_cmd(struct se_cmd *cmd,
+ const struct target_core_fabric_ops *tfo,
+ struct se_session *sess, u32 data_length, int data_direction,
+ int task_attr, unsigned char *sense_buffer, u64 unpacked_lun,
+ struct target_cmd_counter *cmd_cnt);
int target_init_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
unsigned char *sense, u64 unpacked_lun, u32 data_length,
int task_attr, int data_dir, int flags);
--
2.25.1
