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qla2x00t: Register for RSCNs in target mode

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The QLogic firmware and qla2xxx do not register for RSCNs in
target-only mode, so do that explicitly.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5966 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2015-01-13 09:38:09 +00:00
parent fec8d2459c
commit 7895216956
3 changed files with 43 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
qla2x00t/qla2x00-target/qla2x00t.c
+38
View File
@@ -1547,6 +1547,8 @@ static int q2t_target_release(struct scst_tgt *scst_tgt)
q2t_target_stop(scst_tgt);
cancel_work_sync(&tgt->rscn_reg_work);
ha->q2t_tgt = NULL;
scst_tgt_set_tgt_priv(scst_tgt, NULL);
@@ -4173,11 +4175,39 @@ out:
return res;
}
static void q2t_rscn_reg_work(struct work_struct *work)
{
struct q2t_tgt *tgt = container_of(work, struct q2t_tgt, rscn_reg_work);
scsi_qla_host_t *ha = tgt->ha;
int ret;
TRACE_ENTRY();
if ((ha->host->active_mode & MODE_INITIATOR) == 0) {
/*
* The QLogic firmware and qla2xxx do not register for RSCNs in
* target-only mode, so do that explicitly.
*/
ret = qla2x00_send_change_request(ha, 0x3, ha->vp_idx);
if (ret != QLA_SUCCESS)
PRINT_INFO("qla2x00t(%ld): RSCN registration failed: "
"%#x (OK for non-fabric setups)",
ha->host_no, ret);
else
TRACE_MGMT_DBG("qla2x00t(%ld): RSCN registration succeeded",
ha->host_no);
}
TRACE_EXIT();
return;
}
/*
* pha->hardware_lock supposed to be held on entry. Might drop it, then reacquire
*/
static int q24_handle_els(scsi_qla_host_t *ha, notify24xx_entry_t *iocb)
{
struct q2t_tgt *tgt = ha->tgt;
int res = 1; /* send notify ack */
struct q2t_sess *sess;
int loop_id;
@@ -4189,6 +4219,13 @@ static int q24_handle_els(scsi_qla_host_t *ha, notify24xx_entry_t *iocb)
switch (iocb->status_subcode) {
case ELS_PLOGI:
/*
* HACK. Let's do it on PLOGI, because seems there is no other
* simple place, from where it can be called. In the worst
* case, we will just reinstall RSCNs once again, it's harmless.
*/
schedule_work(&tgt->rscn_reg_work);
break;
case ELS_FLOGI:
case ELS_PRLI:
break;
@@ -5886,6 +5923,7 @@ static int q2t_add_target(scsi_qla_host_t *ha)
tgt->ha = ha;
init_waitqueue_head(&tgt->waitQ);
INIT_WORK(&tgt->rscn_reg_work, q2t_rscn_reg_work);
INIT_LIST_HEAD(&tgt->sess_list);
INIT_LIST_HEAD(&tgt->del_sess_list);
INIT_DELAYED_WORK(&tgt->sess_del_work, q2t_del_sess_work_fn);
qla2x00t/qla2x00-target/qla2x00t.h
+2
View File
@@ -141,6 +141,8 @@ struct q2t_tgt {
*/
unsigned long tgt_stop; /* the driver is being stopped */
struct work_struct rscn_reg_work;
/* Count of sessions referring q2t_tgt. Protected by hardware_lock. */
int sess_count;
qla2x00t/qla_mbx.c
+3 -2
View File
@@ -3035,9 +3035,9 @@ qla2x00_send_change_request(scsi_qla_host_t *ha, uint16_t format,
/*
* This command is implicitly executed by firmware during login for the
* physical hosts
* physical hosts if initiator mode is enabled.
*/
if (vp_idx == 0)
if (vp_idx == 0 && (ha->host->active_mode & MODE_INITIATOR))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_SEND_CHANGE_REQUEST;
@@ -3058,6 +3058,7 @@ qla2x00_send_change_request(scsi_qla_host_t *ha, uint16_t format,
return rval;
}
EXPORT_SYMBOL(qla2x00_send_change_request);
int
qla2x00_dump_ram(scsi_qla_host_t *ha, dma_addr_t req_dma, uint32_t addr,