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authorPaolo Bonzini <pbonzini@redhat.com>2012-09-05 11:09:13 -0400
committerNicholas Bellinger <nab@linux-iscsi.org>2012-09-05 20:19:46 -0400
commit6138ed2ab8791d7a9c5ba66cadadd5eaf1fc1dac (patch)
tree832960b78ddc6b0a490e415c6cf5b55ac0b3f5a8 /drivers
parent13b5533a38b1eec9d61a07711dc075f03ae47a36 (diff)
target: move transport_get_sense_data
We will be calling it from transport_complete_cmd, avoid forward declarations. No semantic change. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/target/target_core_transport.c110
1 files changed, 55 insertions, 55 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 3425098ef728..d0afdaa06255 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -567,6 +567,61 @@ static void target_complete_failure_work(struct work_struct *work)
567 transport_generic_request_failure(cmd); 567 transport_generic_request_failure(cmd);
568} 568}
569 569
570/*
571 * Used to obtain Sense Data from underlying Linux/SCSI struct scsi_cmnd
572 */
573static int transport_get_sense_data(struct se_cmd *cmd)
574{
575 unsigned char *buffer = cmd->sense_buffer, *sense_buffer = NULL;
576 struct se_device *dev = cmd->se_dev;
577 unsigned long flags;
578 u32 offset = 0;
579
580 WARN_ON(!cmd->se_lun);
581
582 if (!dev)
583 return 0;
584
585 spin_lock_irqsave(&cmd->t_state_lock, flags);
586 if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) {
587 spin_unlock_irqrestore(&cmd->t_state_lock, flags);
588 return 0;
589 }
590
591 if (!(cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE))
592 goto out;
593
594 if (!dev->transport->get_sense_buffer) {
595 pr_err("dev->transport->get_sense_buffer is NULL\n");
596 goto out;
597 }
598
599 sense_buffer = dev->transport->get_sense_buffer(cmd);
600 if (!sense_buffer) {
601 pr_err("ITT 0x%08x cmd %p: Unable to locate"
602 " sense buffer for task with sense\n",
603 cmd->se_tfo->get_task_tag(cmd), cmd);
604 goto out;
605 }
606
607 spin_unlock_irqrestore(&cmd->t_state_lock, flags);
608
609 offset = cmd->se_tfo->set_fabric_sense_len(cmd, TRANSPORT_SENSE_BUFFER);
610
611 memcpy(&buffer[offset], sense_buffer, TRANSPORT_SENSE_BUFFER);
612
613 /* Automatically padded */
614 cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER + offset;
615
616 pr_debug("HBA_[%u]_PLUG[%s]: Set SAM STATUS: 0x%02x and sense\n",
617 dev->se_hba->hba_id, dev->transport->name, cmd->scsi_status);
618 return 0;
619
620out:
621 spin_unlock_irqrestore(&cmd->t_state_lock, flags);
622 return -1;
623}
624
570void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status) 625void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
571{ 626{
572 struct se_device *dev = cmd->se_dev; 627 struct se_device *dev = cmd->se_dev;
@@ -1821,61 +1876,6 @@ execute:
1821EXPORT_SYMBOL(target_execute_cmd); 1876EXPORT_SYMBOL(target_execute_cmd);
1822 1877
1823/* 1878/*
1824 * Used to obtain Sense Data from underlying Linux/SCSI struct scsi_cmnd
1825 */
1826static int transport_get_sense_data(struct se_cmd *cmd)
1827{
1828 unsigned char *buffer = cmd->sense_buffer, *sense_buffer = NULL;
1829 struct se_device *dev = cmd->se_dev;
1830 unsigned long flags;
1831 u32 offset = 0;
1832
1833 WARN_ON(!cmd->se_lun);
1834
1835 if (!dev)
1836 return 0;
1837
1838 spin_lock_irqsave(&cmd->t_state_lock, flags);
1839 if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) {
1840 spin_unlock_irqrestore(&cmd->t_state_lock, flags);
1841 return 0;
1842 }
1843
1844 if (!(cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE))
1845 goto out;
1846
1847 if (!dev->transport->get_sense_buffer) {
1848 pr_err("dev->transport->get_sense_buffer is NULL\n");
1849 goto out;
1850 }
1851
1852 sense_buffer = dev->transport->get_sense_buffer(cmd);
1853 if (!sense_buffer) {
1854 pr_err("ITT 0x%08x cmd %p: Unable to locate"
1855 " sense buffer for task with sense\n",
1856 cmd->se_tfo->get_task_tag(cmd), cmd);
1857 goto out;
1858 }
1859
1860 spin_unlock_irqrestore(&cmd->t_state_lock, flags);
1861
1862 offset = cmd->se_tfo->set_fabric_sense_len(cmd, TRANSPORT_SENSE_BUFFER);
1863
1864 memcpy(&buffer[offset], sense_buffer, TRANSPORT_SENSE_BUFFER);
1865
1866 /* Automatically padded */
1867 cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER + offset;
1868
1869 pr_debug("HBA_[%u]_PLUG[%s]: Set SAM STATUS: 0x%02x and sense\n",
1870 dev->se_hba->hba_id, dev->transport->name, cmd->scsi_status);
1871 return 0;
1872
1873out:
1874 spin_unlock_irqrestore(&cmd->t_state_lock, flags);
1875 return -1;
1876}
1877
1878/*
1879 * Process all commands up to the last received ORDERED task attribute which 1879 * Process all commands up to the last received ORDERED task attribute which
1880 * requires another blocking boundary 1880 * requires another blocking boundary
1881 */ 1881 */