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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 <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Andy Grover <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Cc: <[email protected]>
Cc: Felipe Balbi <[email protected]>
Cc: Michael S. Tsirkin <[email protected]>
Cc: Juergen Gross <[email protected]>
Signed-off-by: Nicholas Bellinger <[email protected]>
This commit is contained in:
Bart Van Assche 2015-04-14 13:26:44 +02:00 • committed by Nicholas Bellinger
commit 649ee05499
22 changed files with 76 additions and 182 deletions
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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,