Merge branch 'svn-trunk'

This commit is contained in:
Bart Van Assche
2019-07-14 14:17:15 -07:00
7 changed files with 75 additions and 40 deletions

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@@ -3,11 +3,11 @@
ABT_DETAILS="x86_64"
ABT_JOBS=5
ABT_KERNELS=" \
5.2 \
5.1.17-nc \
5.2.1 \
5.1.18-nc \
5.0.21-nc \
4.20.17-nc \
4.19.58-nc \
4.19.59-nc \
4.18.20-nc \
4.17.19-nc \
4.16.18-nc \

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@@ -73,3 +73,32 @@ Call Trace:
[<ffffffff8159c459>] ? retint_restore_args+0x13/0x43
[<ffffffff810b2480>] ? kthread+0x0/0xc0
[<ffffffff8159cc40>] ? child_rip+0x0/0x30
When using RHEL 6 unloading this driver triggers a deadlock:
INFO: task events/0:35 blocked for more than 120 seconds.
Not tainted 2.6.32-754.11.1.el6.x86_64.debug #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
events/0 D ffff880077e24408 12408 35 2 0x00000000
ffff88007e02fa60 0000000000000046 0000000000000000 7fffffffffffffff
7fffffffffffffff 00000365a5588f80 ffff88007e028a80 ffff88000d7d93d8
0000000100346a5e 00000000000003c8 ffff88007e029040 ffff88007e02ffd8
Call Trace:
[<ffffffff8158f775>] schedule_timeout+0x265/0x330
[<ffffffff8158f29f>] ? wait_for_common+0x4f/0x180
[<ffffffff8158f29f>] ? wait_for_common+0x4f/0x180
[<ffffffff810737a0>] ? default_wake_function+0x0/0x20
[<ffffffff8158f37b>] wait_for_common+0x12b/0x180
[<ffffffff810737a0>] ? default_wake_function+0x0/0x20
[<ffffffff8158f4ad>] wait_for_completion+0x1d/0x20
[<ffffffffa0714946>] ? qlt_free_session_done+0x1d6/0x930 [qla2xxx_scst]
[<ffffffffa0714770>] ? qlt_free_session_done+0x0/0x930 [qla2xxx_scst]
[<ffffffff810ab2ee>] ? worker_thread+0x21e/0x3f0
[<ffffffff810ab29b>] ? worker_thread+0x1cb/0x3f0
[<ffffffff810b29b0>] ? autoremove_wake_function+0x0/0x40
[<ffffffff810ab0d0>] ? worker_thread+0x0/0x3f0
[<ffffffff810b2520>] ? kthread+0xa0/0xc0
[<ffffffff8159cc60>] ? child_rip+0x20/0x30
[<ffffffff8159c459>] ? retint_restore_args+0x13/0x43
[<ffffffff810b2480>] ? kthread+0x0/0xc0
[<ffffffff8159cc40>] ? child_rip+0x0/0x30

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@@ -2428,6 +2428,7 @@ typedef struct fc_port {
#define NVME_FLAG_RESETTING 1
struct fc_port *conflict;
unsigned char logout_completed;
int generation;
struct se_session *se_sess;
@@ -2435,9 +2436,8 @@ typedef struct fc_port {
struct qla_tgt *tgt;
unsigned long expires;
struct list_head del_list_entry;
struct work_struct free_work;
struct work_struct reg_work;
struct work_struct post_logout_work;
struct work_struct finish_logout_work;
uint64_t jiffies_at_registration;
struct qlt_plogi_ack_t *plogi_link[QLT_PLOGI_LINK_MAX];
struct completion *unreg_done;

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@@ -293,6 +293,7 @@ qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
goto done;
fcport->flags |= FCF_ASYNC_SENT;
fcport->logout_completed = 0;
fcport->disc_state = DSC_LOGIN_PEND;
sp->type = SRB_LOGIN_CMD;
@@ -465,7 +466,7 @@ void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
if (ea->rc != QLA_SUCCESS) {
if (ea->data[0] != MBS_COMMAND_COMPLETE) {
ql_dbg(ql_dbg_disc, vha, 0x2066,
"%s %s: adisc fail: post delete\n",
__func__, wwn_to_str(ea->fcport->port_name));
@@ -1199,6 +1200,7 @@ qla24xx_async_prli(struct scsi_qla_host *vha, fc_port_t *fcport)
return rval;
fcport->flags |= FCF_ASYNC_SENT;
fcport->logout_completed = 0;
sp->type = SRB_PRLI_CMD;
sp->name = "prli";
@@ -1884,8 +1886,8 @@ qla24xx_async_abort_command(srb_t *sp)
static void
qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
{
switch (ea->rc) {
case QLA_SUCCESS:
switch (ea->data[0]) {
case MBS_COMMAND_COMPLETE:
ql_dbg(ql_dbg_disc, vha, 0x2118, "%s %d %s post gpdb\n",
__func__, __LINE__, wwn_to_str(ea->fcport->port_name));
@@ -1965,8 +1967,8 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
return;
}
switch (ea->rc) {
case QLA_SUCCESS:
switch (ea->data[0]) {
case MBS_COMMAND_COMPLETE:
/*
* Driver must validate login state - If PRLI not complete,
* force a relogin attempt via implicit LOGO, PLOGI, and PRLI
@@ -1994,7 +1996,7 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
qla24xx_post_gpdb_work(vha, ea->fcport, 0);
}
break;
case QLA_COMMAND_ERROR:
case MBS_COMMAND_ERROR:
ql_dbg(ql_dbg_disc, vha, 0x20eb, "%s %d %s cmd error %x\n",
__func__, __LINE__, wwn_to_str(ea->fcport->port_name), ea->data[1]);
@@ -2005,7 +2007,7 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
else
qla2x00_mark_device_lost(vha, ea->fcport, 1, 0);
break;
case QLA_LOOP_ID_USED:
case MBS_LOOP_ID_USED:
/* data[1] = IO PARAM 1 = nport ID */
cid.b.domain = (ea->iop[1] >> 16) & 0xff;
cid.b.area = (ea->iop[1] >> 8) & 0xff;
@@ -2021,7 +2023,7 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
ea->fcport->loop_id = FC_NO_LOOP_ID;
qla24xx_post_gnl_work(vha, ea->fcport);
break;
case QLA_PORT_ID_USED:
case MBS_PORT_ID_USED:
lid = ea->iop[1] & 0xffff;
qlt_find_sess_invalidate_other(vha,
wwn_to_u64(ea->fcport->port_name),
@@ -4877,8 +4879,6 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn);
INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
INIT_WORK(&fcport->post_logout_work, qlt_post_logout);
INIT_WORK(&fcport->finish_logout_work, qlt_finish_logout);
INIT_LIST_HEAD(&fcport->gnl_entry);
INIT_LIST_HEAD(&fcport->list);

View File

@@ -568,8 +568,10 @@ static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
}
complete(&fcport->nvme_del_done);
if (!test_bit(UNLOADING, &fcport->vha->dpc_flags))
schedule_work(&fcport->post_logout_work);
if (!test_bit(UNLOADING, &fcport->vha->dpc_flags)) {
INIT_WORK(&fcport->free_work, qlt_free_session_done);
schedule_work(&fcport->free_work);
}
fcport->nvme_flag &= ~NVME_FLAG_DELETING;
ql_log(ql_log_info, fcport->vha, 0x2110,

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@@ -698,8 +698,7 @@ void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
case SRB_NACK_PRLI:
t = e->u.nack.fcport;
flush_work(&t->del_work);
flush_work(&t->post_logout_work);
flush_work(&t->finish_logout_work);
flush_work(&t->free_work);
mutex_lock(&vha->vha_tgt.tgt_mutex);
t = qlt_create_sess(vha, e->u.nack.fcport, 0);
mutex_unlock(&vha->vha_tgt.tgt_mutex);
@@ -967,13 +966,16 @@ qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo)
logo->cmd_count, res);
}
void qlt_post_logout(struct work_struct *work)
void qlt_free_session_done(struct work_struct *work)
{
struct fc_port *sess = container_of(work, struct fc_port,
post_logout_work);
free_work);
struct qla_tgt *tgt = sess->tgt;
struct scsi_qla_host *vha = sess->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
bool logout_started = false;
scsi_qla_host_t *base_vha;
struct qlt_plogi_ack_t *own =
sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
@@ -1033,19 +1035,22 @@ void qlt_post_logout(struct work_struct *work)
if (sess->se_sess != NULL)
ha->tgt.tgt_ops->free_session(sess);
if (!logout_started)
qlt_finish_logout(&sess->finish_logout_work);
}
if (logout_started) {
bool traced = false;
void qlt_finish_logout(struct work_struct *work)
{
struct fc_port *sess = container_of(work, struct fc_port,
finish_logout_work);
struct qla_tgt *tgt = sess->tgt;
struct scsi_qla_host *vha = sess->vha;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha;
unsigned long flags;
while (!READ_ONCE(sess->logout_completed)) {
if (!traced) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf086,
"%s: waiting for sess %p logout\n",
__func__, sess);
traced = true;
}
msleep(100);
}
ql_dbg(ql_dbg_disc, vha, 0xf087,
"%s: sess %p logout completed\n", __func__, sess);
}
if (sess->logo_ack_needed) {
sess->logo_ack_needed = 0;
@@ -1082,8 +1087,7 @@ void qlt_finish_logout(struct work_struct *work)
struct qlt_plogi_ack_t *con =
sess->plogi_link[QLT_PLOGI_LINK_CONFLICT];
struct imm_ntfy_from_isp *iocb;
struct qlt_plogi_ack_t *own =
sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
own = sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
if (con) {
iocb = &con->iocb;
@@ -1179,7 +1183,8 @@ void qlt_unreg_sess(struct fc_port *sess)
sess->nvme_flag |= NVME_FLAG_DELETING;
schedule_work(&sess->nvme_del_work);
} else {
schedule_work(&sess->post_logout_work);
INIT_WORK(&sess->free_work, qlt_free_session_done);
schedule_work(&sess->free_work);
}
}
EXPORT_SYMBOL(qlt_unreg_sess);
@@ -1385,6 +1390,7 @@ static struct fc_port *qlt_create_sess(
*/
sess->logout_on_delete = 1;
sess->keep_nport_handle = 0;
sess->logout_completed = 0;
if (ha->tgt.tgt_ops->check_initiator_node_acl(vha,
&fcport->port_name[0], sess) < 0) {
@@ -4612,7 +4618,7 @@ void qlt_logo_completion_handler(fc_port_t *fcport, int rc)
fcport->d_id.b.al_pa, rc);
}
schedule_work(&fcport->finish_logout_work);
fcport->logout_completed = 1;
}
/*

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@@ -1065,9 +1065,7 @@ extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int);
extern int __init qlt_init(void);
extern void qlt_exit(void);
extern void qlt_update_vp_map(struct scsi_qla_host *, int);
extern void qlt_post_logout(struct work_struct *);
extern void qlt_finish_logout(struct work_struct *work);
extern void qlt_free_session_done(struct work_struct *);
/*
* This macro is used during early initializations when host->active_mode
* is not set. Right now, ha value is ignored.