diff options
| author | Mike Christie <mchristi@redhat.com> | 2017-05-31 22:52:39 +0200 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2017-07-07 08:11:45 +0200 |
| commit | c6d66aba98a39cfed206c5c61f0a604ba09b26ce (patch) | |
| tree | d45f9069b34a52f67f9ea58c4f50e32257944000 | |
| parent | target: do not require a transport_complete for SCF_TRANSPORT_TASK_SENSE (diff) | |
| download | linux-c6d66aba98a39cfed206c5c61f0a604ba09b26ce.tar.xz linux-c6d66aba98a39cfed206c5c61f0a604ba09b26ce.zip | |
target: add helper to copy sense to se_cmd buffer
This adds a helper to copy sense from backend module buffer to
the se_cmd's sense buffer.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
| -rw-r--r-- | drivers/target/target_core_transport.c | 18 | ||||
| -rw-r--r-- | include/target/target_core_backend.h | 2 |
2 files changed, 20 insertions, 0 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index a8f943e325eb..341025a3cbb7 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -704,6 +704,24 @@ static unsigned char *transport_get_sense_buffer(struct se_cmd *cmd) return cmd->sense_buffer; } +void transport_copy_sense_to_cmd(struct se_cmd *cmd, unsigned char *sense) +{ + unsigned char *cmd_sense_buf; + unsigned long flags; + + spin_lock_irqsave(&cmd->t_state_lock, flags); + cmd_sense_buf = transport_get_sense_buffer(cmd); + if (!cmd_sense_buf) { + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + return; + } + + cmd->se_cmd_flags |= SCF_TRANSPORT_TASK_SENSE; + memcpy(cmd_sense_buf, sense, cmd->scsi_sense_length); + spin_unlock_irqrestore(&cmd->t_state_lock, flags); +} +EXPORT_SYMBOL(transport_copy_sense_to_cmd); + void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status) { struct se_device *dev = cmd->se_dev; diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h index 1f2b7007f2df..3757f5f54e03 100644 --- a/include/target/target_core_backend.h +++ b/include/target/target_core_backend.h @@ -73,6 +73,8 @@ void target_backend_unregister(const struct target_backend_ops *); void target_complete_cmd(struct se_cmd *, u8); void target_complete_cmd_with_length(struct se_cmd *, u8, int); +void transport_copy_sense_to_cmd(struct se_cmd *, unsigned char *); + sense_reason_t spc_parse_cdb(struct se_cmd *cmd, unsigned int *size); sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd); sense_reason_t spc_emulate_inquiry_std(struct se_cmd *, unsigned char *); |