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qla2xxx: Track I-T nexus as single fc_port struct

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Current code merges qla_tgt_sess and fc_port structure
into single fc_port structure representing same I-T nexus.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
[ bvanassche: fixed spelling of patch description ]
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Quinn Tran 2017-01-19 22:27:59 -08:00 committed by Nicholas Bellinger
parent 37cacc0a13
commit 5d964837c6
8 changed files with 310 additions and 430 deletions
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112
drivers/scsi/qla2xxx/qla_def.h
View file

@ -1976,6 +1976,84 @@ struct mbx_entry {
uint8_t port_name[WWN_SIZE];
};
#ifndef IMMED_NOTIFY_TYPE
#define IMMED_NOTIFY_TYPE 0x0D /* Immediate notify entry. */
/*
* ISP queue - immediate notify entry structure definition.
* This is sent by the ISP to the Target driver.
* This IOCB would have report of events sent by the
* initiator, that needs to be handled by the target
* driver immediately.
*/
struct imm_ntfy_from_isp {
uint8_t entry_type; /* Entry type. */
uint8_t entry_count; /* Entry count. */
uint8_t sys_define; /* System defined. */
uint8_t entry_status; /* Entry Status. */
union {
struct {
uint32_t sys_define_2; /* System defined. */
target_id_t target;
uint16_t lun;
uint8_t target_id;
uint8_t reserved_1;
uint16_t status_modifier;
uint16_t status;
uint16_t task_flags;
uint16_t seq_id;
uint16_t srr_rx_id;
uint32_t srr_rel_offs;
uint16_t srr_ui;
#define SRR_IU_DATA_IN 0x1
#define SRR_IU_DATA_OUT 0x5
#define SRR_IU_STATUS 0x7
uint16_t srr_ox_id;
uint8_t reserved_2[28];
} isp2x;
struct {
uint32_t reserved;
uint16_t nport_handle;
uint16_t reserved_2;
uint16_t flags;
#define NOTIFY24XX_FLAGS_GLOBAL_TPRLO BIT_1
#define NOTIFY24XX_FLAGS_PUREX_IOCB BIT_0
uint16_t srr_rx_id;
uint16_t status;
uint8_t status_subcode;
uint8_t fw_handle;
uint32_t exchange_address;
uint32_t srr_rel_offs;
uint16_t srr_ui;
uint16_t srr_ox_id;
union {
struct {
uint8_t node_name[8];
} plogi; /* PLOGI/ADISC/PDISC */
struct {
/* PRLI word 3 bit 0-15 */
uint16_t wd3_lo;
uint8_t resv0[6];
} prli;
struct {
uint8_t port_id[3];
uint8_t resv1;
uint16_t nport_handle;
uint16_t resv2;
} req_els;
} u;
uint8_t port_name[8];
uint8_t resv3[3];
uint8_t vp_index;
uint32_t reserved_5;
uint8_t port_id[3];
uint8_t reserved_6;
} isp24;
} u;
uint16_t reserved_7;
uint16_t ox_id;
} __packed;
#endif
/*
* ISP request and response queue entry sizes
*/
@ -2026,7 +2104,7 @@ typedef struct {
/*
* Fibre channel port type.
*/
typedef enum {
typedef enum {
FCT_UNKNOWN,
FCT_RSCN,
FCT_SWITCH,
@ -2035,6 +2113,19 @@ typedef struct {
FCT_TARGET
} fc_port_type_t;
enum qlt_plogi_link_t {
QLT_PLOGI_LINK_SAME_WWN,
QLT_PLOGI_LINK_CONFLICT,
QLT_PLOGI_LINK_MAX
};
struct qlt_plogi_ack_t {
struct list_head list;
struct imm_ntfy_from_isp iocb;
port_id_t id;
int ref_count;
};
/*
* Fibre channel port structure.
*/
@ -2048,6 +2139,25 @@ typedef struct fc_port {
uint16_t loop_id;
uint16_t old_loop_id;
unsigned int conf_compl_supported:1;
unsigned int deleted:2;
unsigned int local:1;
unsigned int logout_on_delete:1;
unsigned int keep_nport_handle:1;
unsigned int send_els_logo:1;
unsigned char logout_completed;
int generation;
struct se_session *se_sess;
struct kref sess_kref;
struct qla_tgt *tgt;
unsigned long expires;
struct list_head del_list_entry;
struct work_struct free_work;
struct qlt_plogi_ack_t *plogi_link[QLT_PLOGI_LINK_MAX];
uint16_t tgt_id;
uint16_t old_tgt_id;

4
drivers/scsi/qla2xxx/qla_dfs.c
View file

@ -18,7 +18,7 @@ qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused)
scsi_qla_host_t *vha = s->private;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
struct qla_tgt_sess *sess = NULL;
struct fc_port *sess = NULL;
struct qla_tgt *tgt= vha->vha_tgt.qla_tgt;
seq_printf(s, "%s\n",vha->host_str);
@ -26,7 +26,7 @@ qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused)
seq_printf(s, "Port ID Port Name Handle\n");
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
list_for_each_entry(sess, &tgt->sess_list, sess_list_entry)
list_for_each_entry(sess, &vha->vp_fcports, list)
seq_printf(s, "%02x:%02x:%02x %8phC %d\n",
sess->d_id.b.domain, sess->d_id.b.area,
sess->d_id.b.al_pa, sess->port_name,

12
drivers/scsi/qla2xxx/qla_init.c
View file

@ -3352,12 +3352,6 @@ qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
"Unable to allocate fc remote port.\n");
return;
}
/*
* Create target mode FC NEXUS in qla_target.c if target mode is
* enabled..
*/
qlt_fc_port_added(vha, fcport);
spin_lock_irqsave(fcport->vha->host->host_lock, flags);
*((fc_port_t **)rport->dd_data) = fcport;
@ -3407,12 +3401,6 @@ qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
reg_port:
if (qla_ini_mode_enabled(vha))
qla2x00_reg_remote_port(vha, fcport);
else {
/*
* Create target mode FC NEXUS in qla_target.c
*/
qlt_fc_port_added(vha, fcport);
}
}
/*

2
drivers/scsi/qla2xxx/qla_iocb.c
View file

@ -2248,7 +2248,7 @@ qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio)
logio->control_flags =
cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO);
if (!sp->fcport->tgt_session ||
!sp->fcport->tgt_session->keep_nport_handle)
!sp->fcport->keep_nport_handle)
logio->control_flags |= cpu_to_le16(LCF_FREE_NPORT);
logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
logio->port_id[0] = sp->fcport->d_id.b.al_pa;

326
drivers/scsi/qla2xxx/qla_target.c
View file

@ -102,7 +102,7 @@ enum fcp_resp_rsp_codes {
static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha,
struct atio_from_isp *pkt, uint8_t);
static void qlt_response_pkt(struct scsi_qla_host *ha, response_t *pkt);
static int qlt_issue_task_mgmt(struct qla_tgt_sess *sess, uint32_t lun,
static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
int fn, void *iocb, int flags);
static void qlt_send_term_exchange(struct scsi_qla_host *ha, struct qla_tgt_cmd
*cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort);
@ -138,21 +138,6 @@ void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest)
wmb();
}
/* ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list) */
static struct qla_tgt_sess *qlt_find_sess_by_port_name(
struct qla_tgt *tgt,
const uint8_t *port_name)
{
struct qla_tgt_sess *sess;
list_for_each_entry(sess, &tgt->sess_list, sess_list_entry) {
if (!memcmp(sess->port_name, port_name, WWN_SIZE))
return sess;
}
return NULL;
}
/* Might release hw lock, then reaquire!! */
static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked)
{
@ -399,16 +384,16 @@ void qlt_response_pkt_all_vps(struct scsi_qla_host *vha, response_t *pkt)
* guarantees that ref_count is not modified concurrently.
* Upon successful return content of iocb is undefined
*/
static qlt_plogi_ack_t *
static struct qlt_plogi_ack_t *
qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id,
struct imm_ntfy_from_isp *iocb)
{
qlt_plogi_ack_t *pla;
struct qlt_plogi_ack_t *pla;
list_for_each_entry(pla, &vha->plogi_ack_list, list) {
if (pla->id.b24 == id->b24) {
qlt_send_term_imm_notif(vha, &pla->iocb, 1);
pla->iocb = *iocb;
memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
return pla;
}
}
@ -421,15 +406,17 @@ qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id,
return NULL;
}
pla->iocb = *iocb;
memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
pla->id = *id;
list_add_tail(&pla->list, &vha->plogi_ack_list);
return pla;
}
static void qlt_plogi_ack_unref(struct scsi_qla_host *vha, qlt_plogi_ack_t *pla)
static void qlt_plogi_ack_unref(struct scsi_qla_host *vha,
struct qlt_plogi_ack_t *pla)
{
struct imm_ntfy_from_isp *iocb = &pla->iocb;
BUG_ON(!pla->ref_count);
pla->ref_count--;
@ -438,21 +425,22 @@ static void qlt_plogi_ack_unref(struct scsi_qla_host *vha, qlt_plogi_ack_t *pla)
ql_dbg(ql_dbg_async, vha, 0x5089,
"Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x"
" exch %#x ox_id %#x\n", pla->iocb.u.isp24.port_name,
pla->iocb.u.isp24.port_id[2], pla->iocb.u.isp24.port_id[1],
pla->iocb.u.isp24.port_id[0],
le16_to_cpu(pla->iocb.u.isp24.nport_handle),
pla->iocb.u.isp24.exchange_address, pla->iocb.ox_id);
qlt_send_notify_ack(vha, &pla->iocb, 0, 0, 0, 0, 0, 0);
" exch %#x ox_id %#x\n", iocb->u.isp24.port_name,
iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1],
iocb->u.isp24.port_id[0],
le16_to_cpu(iocb->u.isp24.nport_handle),
iocb->u.isp24.exchange_address, iocb->ox_id);
qlt_send_notify_ack(vha, iocb, 0, 0, 0, 0, 0, 0);
list_del(&pla->list);
kmem_cache_free(qla_tgt_plogi_cachep, pla);
}
static void
qlt_plogi_ack_link(struct scsi_qla_host *vha, qlt_plogi_ack_t *pla,
struct qla_tgt_sess *sess, qlt_plogi_link_t link)
qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla,
struct fc_port *sess, enum qlt_plogi_link_t link)
{
struct imm_ntfy_from_isp *iocb = &pla->iocb;
/* Inc ref_count first because link might already be pointing at pla */
pla->ref_count++;
@ -462,8 +450,8 @@ qlt_plogi_ack_link(struct scsi_qla_host *vha, qlt_plogi_ack_t *pla,
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097,
"Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC"
" s_id %02x:%02x:%02x, ref=%d\n", sess, link, sess->port_name,
pla->iocb.u.isp24.port_name, pla->iocb.u.isp24.port_id[2],
pla->iocb.u.isp24.port_id[1], pla->iocb.u.isp24.port_id[0],
iocb->u.isp24.port_name, iocb->u.isp24.port_id[2],
iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
pla->ref_count);
sess->plogi_link[link] = pla;
@ -517,7 +505,7 @@ qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo)
static void qlt_free_session_done(struct work_struct *work)
{
struct qla_tgt_sess *sess = container_of(work, struct qla_tgt_sess,
struct fc_port *sess = container_of(work, struct fc_port,
free_work);
struct qla_tgt *tgt = sess->tgt;
struct scsi_qla_host *vha = sess->vha;
@ -551,7 +539,6 @@ static void qlt_free_session_done(struct work_struct *work)
fcport.d_id = sess->d_id;
memcpy(fcport.port_name, sess->port_name, WWN_SIZE);
fcport.vha = vha;
fcport.tgt_session = sess;
rc = qla2x00_post_async_logout_work(vha, &fcport, NULL);
if (rc != QLA_SUCCESS)
@ -587,22 +574,22 @@ static void qlt_free_session_done(struct work_struct *work)
}
spin_lock_irqsave(&ha->hardware_lock, flags);
{
qlt_plogi_ack_t *own =
struct qlt_plogi_ack_t *own =
sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
qlt_plogi_ack_t *con =
struct qlt_plogi_ack_t *con =
sess->plogi_link[QLT_PLOGI_LINK_CONFLICT];
struct imm_ntfy_from_isp *iocb;
if (con) {
iocb = &con->iocb;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099,
"se_sess %p / sess %p port %8phC is gone,"
" %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n",
sess->se_sess, sess, sess->port_name,
own ? "releasing own PLOGI" :
"no own PLOGI pending",
own ? own->ref_count : -1,
con->iocb.u.isp24.port_name, con->ref_count);
"se_sess %p / sess %p port %8phC is gone,"
" %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n",
sess->se_sess, sess, sess->port_name,
own ? "releasing own PLOGI" : "no own PLOGI pending",
own ? own->ref_count : -1,
iocb->u.isp24.port_name, con->ref_count);
qlt_plogi_ack_unref(vha, con);
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a,
@ -616,15 +603,15 @@ static void qlt_free_session_done(struct work_struct *work)
if (own)
qlt_plogi_ack_unref(vha, own);
}
list_del(&sess->sess_list_entry);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
sess->se_sess = NULL;
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf001,
"Unregistration of sess %p finished\n", sess);
kfree(sess);
/*
* We need to protect against race, when tgt is freed before or
* inside wake_up()
@ -635,37 +622,30 @@ static void qlt_free_session_done(struct work_struct *work)
}
/* ha->tgt.sess_lock supposed to be held on entry */
static void qlt_release_session(struct kref *kref)
void qlt_unreg_sess(struct fc_port *sess)
{
struct qla_tgt_sess *sess =
container_of(kref, struct qla_tgt_sess, sess_kref);
struct scsi_qla_host *vha = sess->vha;
ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
"%s sess %p for deletion %8phC\n",
__func__, sess, sess->port_name);
if (sess->se_sess)
vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
if (!list_empty(&sess->del_list_entry))
list_del_init(&sess->del_list_entry);
qla2x00_mark_device_lost(vha, sess, 1, 1);
sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
INIT_WORK(&sess->free_work, qlt_free_session_done);
schedule_work(&sess->free_work);
}
void qlt_put_sess(struct qla_tgt_sess *sess)
{
if (!sess)
return;
assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
kref_put(&sess->sess_kref, qlt_release_session);
}
EXPORT_SYMBOL(qlt_put_sess);
EXPORT_SYMBOL(qlt_unreg_sess);
static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess = NULL;
struct fc_port *sess = NULL;
uint16_t loop_id;
int res = 0;
struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb;
@ -678,31 +658,6 @@ static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
qlt_clear_tgt_db(vha->vha_tgt.qla_tgt);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
#if 0 /* FIXME: do we need to choose a session here? */
if (!list_empty(&ha->tgt.qla_tgt->sess_list)) {
sess = list_entry(ha->tgt.qla_tgt->sess_list.next,
typeof(*sess), sess_list_entry);
switch (mcmd) {
case QLA_TGT_NEXUS_LOSS_SESS:
mcmd = QLA_TGT_NEXUS_LOSS;
break;
case QLA_TGT_ABORT_ALL_SESS:
mcmd = QLA_TGT_ABORT_ALL;
break;
case QLA_TGT_NEXUS_LOSS:
case QLA_TGT_ABORT_ALL:
break;
default:
ql_dbg(ql_dbg_tgt, vha, 0xe046,
"qla_target(%d): Not allowed "
"command %x in %s", vha->vp_idx,
mcmd, __func__);
sess = NULL;
break;
}
} else
sess = NULL;
#endif
} else {
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
@ -725,7 +680,7 @@ static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
}
/* ha->tgt.sess_lock supposed to be held on entry */
static void qlt_schedule_sess_for_deletion(struct qla_tgt_sess *sess,
static void qlt_schedule_sess_for_deletion(struct fc_port *sess,
bool immediate)
{
struct qla_tgt *tgt = sess->tgt;
@ -771,10 +726,13 @@ static void qlt_schedule_sess_for_deletion(struct qla_tgt_sess *sess,
/* ha->tgt.sess_lock supposed to be held on entry */
static void qlt_clear_tgt_db(struct qla_tgt *tgt)
{
struct qla_tgt_sess *sess;
struct fc_port *sess;
scsi_qla_host_t *vha = tgt->vha;
list_for_each_entry(sess, &tgt->sess_list, sess_list_entry)
qlt_schedule_sess_for_deletion(sess, true);
list_for_each_entry(sess, &vha->vp_fcports, list) {
if (sess->se_sess)
qlt_schedule_sess_for_deletion(sess, true);
}
/* At this point tgt could be already dead */
}
@ -829,7 +787,7 @@ out_free_id_list:
}
/* ha->tgt.sess_lock supposed to be held on entry */
static void qlt_undelete_sess(struct qla_tgt_sess *sess)
static void qlt_undelete_sess(struct fc_port *sess)
{
BUG_ON(sess->deleted != QLA_SESS_DELETION_PENDING);
@ -843,7 +801,7 @@ static void qlt_del_sess_work_fn(struct delayed_work *work)
sess_del_work);
struct scsi_qla_host *vha = tgt->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess;
struct fc_port *sess;
unsigned long flags, elapsed;
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
@ -861,7 +819,7 @@ static void qlt_del_sess_work_fn(struct delayed_work *work)
sess);
if (sess->se_sess)
ha->tgt.tgt_ops->shutdown_sess(sess);
qlt_put_sess(sess);
ha->tgt.tgt_ops->put_sess(sess);
} else {
schedule_delayed_work(&tgt->sess_del_work,
sess->expires - elapsed);
@ -875,19 +833,18 @@ static void qlt_del_sess_work_fn(struct delayed_work *work)
* Adds an extra ref to allow to drop hw lock after adding sess to the list.
* Caller must put it.
*/
static struct qla_tgt_sess *qlt_create_sess(
static struct fc_port *qlt_create_sess(
struct scsi_qla_host *vha,
fc_port_t *fcport,
bool local)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess;
struct fc_port *sess;
unsigned long flags;
/* Check to avoid double sessions */
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
list_for_each_entry(sess, &vha->vha_tgt.qla_tgt->sess_list,
sess_list_entry) {
list_for_each_entry(sess, &vha->vp_fcports, list) {
if (!memcmp(sess->port_name, fcport->port_name, WWN_SIZE)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf005,
"Double sess %p found (s_id %x:%x:%x, "
@ -965,7 +922,7 @@ static struct qla_tgt_sess *qlt_create_sess(
memcpy(sess->port_name, fcport->port_name, sizeof(sess->port_name));
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
list_add_tail(&sess->sess_list_entry, &vha->vha_tgt.qla_tgt->sess_list);
list_add_tail(&sess->list, &vha->vp_fcports);
vha->vha_tgt.qla_tgt->sess_count++;
qlt_do_generation_tick(vha, &sess->generation);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
@ -988,7 +945,7 @@ static struct qla_tgt_sess *qlt_create_sess(
return NULL;
} else {
/*
* Take an extra reference to ->sess_kref here to handle qla_tgt_sess
* Take an extra reference to ->sess_kref here to handle fc_port
* access across ->tgt.sess_lock reaquire.
*/
kref_get(&sess->sess_kref);
@ -997,73 +954,6 @@ static struct qla_tgt_sess *qlt_create_sess(
return sess;
}
/*
* Called from qla2x00_reg_remote_port()
*/
void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_tgt_sess *sess;
unsigned long flags;
if (!vha->hw->tgt.tgt_ops)
return;
if (!tgt || (fcport->port_type != FCT_INITIATOR))
return;
if (qla_ini_mode_enabled(vha))
return;
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
if (tgt->tgt_stop) {
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
}
sess = qlt_find_sess_by_port_name(tgt, fcport->port_name);
if (!sess) {
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
mutex_lock(&vha->vha_tgt.tgt_mutex);
sess = qlt_create_sess(vha, fcport, false);
mutex_unlock(&vha->vha_tgt.tgt_mutex);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
} else if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) {
/* Point of no return */
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
} else {
kref_get(&sess->sess_kref);
if (sess->deleted) {
qlt_undelete_sess(sess);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c,
"qla_target(%u): %ssession for port %8phC "
"(loop ID %d) reappeared\n", vha->vp_idx,
sess->local ? "local " : "", sess->port_name,
sess->loop_id);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007,
"Reappeared sess %p\n", sess);
}
ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, fcport->loop_id,
(fcport->flags & FCF_CONF_COMP_SUPPORTED));
}
if (sess && sess->local) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d,
"qla_target(%u): local session for "
"port %8phC (loop ID %d) became global\n", vha->vp_idx,
fcport->port_name, sess->loop_id);
sess->local = 0;
}
qlt_put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
/*
* max_gen - specifies maximum session generation
* at which this deletion requestion is still valid
@ -1072,7 +962,7 @@ void
qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_tgt_sess *sess;
struct fc_port *sess = fcport;
unsigned long flags;
if (!vha->hw->tgt.tgt_ops)
@ -1086,8 +976,7 @@ qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
return;
}
sess = qlt_find_sess_by_port_name(tgt, fcport->port_name);
if (!sess) {
if (!sess->se_sess) {
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
return;
}
@ -1120,8 +1009,8 @@ static inline int test_tgt_sess_count(struct qla_tgt *tgt)
*/
spin_lock_irqsave(&ha->hardware_lock, flags);
ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002,
"tgt %p, empty(sess_list)=%d sess_count=%d\n",
tgt, list_empty(&tgt->sess_list), tgt->sess_count);
"tgt %p, sess_count=%d\n",
tgt, tgt->sess_count);
res = (tgt->sess_count == 0);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
@ -1184,9 +1073,7 @@ int qlt_stop_phase1(struct qla_tgt *tgt)
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a,
"Waiting for tgt %p: list_empty(sess_list)=%d "
"sess_count=%d\n", tgt, list_empty(&tgt->sess_list),
tgt->sess_count);
"Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count);
wait_event(tgt->waitQ, test_tgt_sess_count(tgt));
@ -1538,7 +1425,7 @@ static void abort_cmds_for_lun(struct scsi_qla_host *vha,
/* ha->hardware_lock supposed to be held on entry */
static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
struct abts_recv_from_24xx *abts, struct qla_tgt_sess *sess)
struct abts_recv_from_24xx *abts, struct fc_port *sess)
{
struct qla_hw_data *ha = vha->hw;
struct se_session *se_sess = sess->se_sess;
@ -1547,8 +1434,9 @@ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
u32 lun = 0;
int rc;
bool found_lun = false;
unsigned long flags;
spin_lock(&se_sess->sess_cmd_lock);
spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) {
struct qla_tgt_cmd *cmd =
container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
@ -1558,7 +1446,7 @@ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
break;
}
}
spin_unlock(&se_sess->sess_cmd_lock);
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
/* cmd not in LIO lists, look in qla list */
if (!found_lun) {
@ -1612,7 +1500,7 @@ static void qlt_24xx_handle_abts(struct scsi_qla_host *vha,
struct abts_recv_from_24xx *abts)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess;
struct fc_port *sess;
uint32_t tag = abts->exchange_addr_to_abort;
uint8_t s_id[3];
int rc;
@ -3215,7 +3103,7 @@ EXPORT_SYMBOL(qlt_abort_cmd);
void qlt_free_cmd(struct qla_tgt_cmd *cmd)
{
struct qla_tgt_sess *sess = cmd->sess;
struct fc_port *sess = cmd->sess;
ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074,
"%s: se_cmd[%p] ox_id %04x\n",
@ -3577,7 +3465,7 @@ static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha,
return fcp_task_attr;
}
static struct qla_tgt_sess *qlt_make_local_sess(struct scsi_qla_host *,
static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *,
uint8_t *);
/*
* Process context for I/O path into tcm_qla2xxx code
@ -3587,7 +3475,7 @@ static void __qlt_do_work(struct qla_tgt_cmd *cmd)
scsi_qla_host_t *vha = cmd->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_tgt_sess *sess = cmd->sess;
struct fc_port *sess = cmd->sess;
struct atio_from_isp *atio = &cmd->atio;
unsigned char *cdb;
unsigned long flags;
@ -3637,7 +3525,7 @@ static void __qlt_do_work(struct qla_tgt_cmd *cmd)
* Drop extra session reference from qla_tgt_handle_cmd_for_atio*(
*/
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
qlt_put_sess(sess);
ha->tgt.tgt_ops->put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
@ -3656,7 +3544,7 @@ out_term:
spin_unlock_irqrestore(&ha->hardware_lock, flags);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
qlt_put_sess(sess);
ha->tgt.tgt_ops->put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
@ -3674,7 +3562,7 @@ static void qlt_do_work(struct work_struct *work)
}
static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
struct qla_tgt_sess *sess,
struct fc_port *sess,
struct atio_from_isp *atio)
{
struct se_session *se_sess = sess->se_sess;
@ -3715,7 +3603,7 @@ static void qlt_create_sess_from_atio(struct work_struct *work)
struct qla_tgt_sess_op, work);
scsi_qla_host_t *vha = op->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess;
struct fc_port *sess;
struct qla_tgt_cmd *cmd;
unsigned long flags;
uint8_t *s_id = op->atio.u.isp24.fcp_hdr.s_id;
@ -3756,7 +3644,7 @@ static void qlt_create_sess_from_atio(struct work_struct *work)
if (!cmd) {
spin_lock_irqsave(&ha->hardware_lock, flags);
qlt_send_busy(vha, &op->atio, SAM_STAT_BUSY);
qlt_put_sess(sess);
ha->tgt.tgt_ops->put_sess(sess);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
kfree(op);
return;
@ -3783,8 +3671,9 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_tgt_sess *sess;
struct fc_port *sess;
struct qla_tgt_cmd *cmd;
unsigned long flags;
if (unlikely(tgt->tgt_stop)) {
ql_dbg(ql_dbg_io, vha, 0x3061,
@ -3829,7 +3718,9 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
if (!cmd) {
ql_dbg(ql_dbg_io, vha, 0x3062,
"qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
qlt_put_sess(sess);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
ha->tgt.tgt_ops->put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return -ENOMEM;
}
@ -3858,7 +3749,7 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
}
/* ha->hardware_lock supposed to be held on entry */
static int qlt_issue_task_mgmt(struct qla_tgt_sess *sess, uint32_t lun,
static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
int fn, void *iocb, int flags)
{
struct scsi_qla_host *vha = sess->vha;
@ -3910,7 +3801,7 @@ static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
struct atio_from_isp *a = (struct atio_from_isp *)iocb;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt;
struct qla_tgt_sess *sess;
struct fc_port *sess;
uint32_t lun, unpacked_lun;
int fn;
unsigned long flags;
@ -3943,7 +3834,7 @@ static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
/* ha->hardware_lock supposed to be held on entry */
static int __qlt_abort_task(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *iocb, struct qla_tgt_sess *sess)
struct imm_ntfy_from_isp *iocb, struct fc_port *sess)
{
struct atio_from_isp *a = (struct atio_from_isp *)iocb;
struct qla_hw_data *ha = vha->hw;
@ -3987,7 +3878,7 @@ static int qlt_abort_task(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *iocb)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess;
struct fc_port *sess;
int loop_id;
unsigned long flags;
@ -4017,14 +3908,14 @@ void qlt_logo_completion_handler(fc_port_t *fcport, int rc)
" port %8phC loop_id %#04x s_id %02x:%02x:%02x"
" LOGO failed: %#x\n",
__func__,
fcport->tgt_session->se_sess,
fcport->se_sess,
fcport->tgt_session,
fcport->port_name, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa, rc);
}
fcport->tgt_session->logout_completed = 1;
fcport->logout_completed = 1;
}
}
@ -4035,16 +3926,17 @@ void qlt_logo_completion_handler(fc_port_t *fcport, int rc)
* deletion. Returns existing session with matching wwn if present.
* Null otherwise.
*/
static struct qla_tgt_sess *
static struct fc_port *
qlt_find_sess_invalidate_other(struct qla_tgt *tgt, uint64_t wwn,
port_id_t port_id, uint16_t loop_id, struct qla_tgt_sess **conflict_sess)
port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess)
{
struct qla_tgt_sess *sess = NULL, *other_sess;
struct fc_port *sess = NULL, *other_sess;
uint64_t other_wwn;
scsi_qla_host_t *vha = tgt->vha;
*conflict_sess = NULL;
list_for_each_entry(other_sess, &tgt->sess_list, sess_list_entry) {
list_for_each_entry(other_sess, &vha->vp_fcports, list) {
other_wwn = wwn_to_u64(other_sess->port_name);
@ -4136,13 +4028,13 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess = NULL, *conflict_sess = NULL;
struct fc_port *sess = NULL, *conflict_sess = NULL;
uint64_t wwn;
port_id_t port_id;
uint16_t loop_id;
uint16_t wd3_lo;
int res = 0;
qlt_plogi_ack_t *pla;
struct qlt_plogi_ack_t *pla;
unsigned long flags;
wwn = wwn_to_u64(iocb->u.isp24.port_name);
@ -4455,7 +4347,7 @@ static int __qlt_send_busy(struct scsi_qla_host *vha,
struct ctio7_to_24xx *ctio24;
struct qla_hw_data *ha = vha->hw;
request_t *pkt;
struct qla_tgt_sess *sess = NULL;
struct fc_port *sess = NULL;
unsigned long flags;
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
@ -4516,7 +4408,7 @@ qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess;
struct fc_port *sess;
struct se_session *se_sess;
struct qla_tgt_cmd *cmd;
int tag;
@ -5112,10 +5004,10 @@ static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
}
/* Must be called under tgt_mutex */
static struct qla_tgt_sess *qlt_make_local_sess(struct scsi_qla_host *vha,
static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha,
uint8_t *s_id)
{
struct qla_tgt_sess *sess = NULL;
struct fc_port *sess = NULL;
fc_port_t *fcport = NULL;
int rc, global_resets;
uint16_t loop_id = 0;
@ -5177,7 +5069,6 @@ retry:
mutex_unlock(&vha->vha_tgt.tgt_mutex);
kfree(fcport);
return sess;
}
@ -5186,7 +5077,7 @@ static void qlt_abort_work(struct qla_tgt *tgt,
{
struct scsi_qla_host *vha = tgt->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess = NULL;
struct fc_port *sess = NULL;
unsigned long flags = 0, flags2 = 0;
uint32_t be_s_id;
uint8_t s_id[3];
@ -5230,8 +5121,8 @@ static void qlt_abort_work(struct qla_tgt *tgt,
if (rc != 0)
goto out_term;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
qlt_put_sess(sess);
if (sess)
ha->tgt.tgt_ops->put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
return;
@ -5242,7 +5133,7 @@ out_term:
qlt_24xx_send_abts_resp(vha, &prm->abts, FCP_TMF_REJECTED, false);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
qlt_put_sess(sess);
ha->tgt.tgt_ops->put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
}
@ -5252,7 +5143,7 @@ static void qlt_tmr_work(struct qla_tgt *tgt,
struct atio_from_isp *a = &prm->tm_iocb2;
struct scsi_qla_host *vha = tgt->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess = NULL;
struct fc_port *sess = NULL;
unsigned long flags;
uint8_t *s_id = NULL; /* to hide compiler warnings */
int rc;
@ -5294,13 +5185,14 @@ static void qlt_tmr_work(struct qla_tgt *tgt,
if (rc != 0)
goto out_term;
qlt_put_sess(sess);
ha->tgt.tgt_ops->put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
out_term:
qlt_send_term_exchange(vha, NULL, &prm->tm_iocb2, 1, 0);
qlt_put_sess(sess);
if (sess)
ha->tgt.tgt_ops->put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
@ -5377,7 +5269,6 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
tgt->ha = ha;
tgt->vha = base_vha;
init_waitqueue_head(&tgt->waitQ);
INIT_LIST_HEAD(&tgt->sess_list);
INIT_LIST_HEAD(&tgt->del_sess_list);
INIT_DELAYED_WORK(&tgt->sess_del_work,
(void (*)(struct work_struct *))qlt_del_sess_work_fn);
@ -6233,9 +6124,8 @@ int __init qlt_init(void)
}
qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep",
sizeof(qlt_plogi_ack_t),
__alignof__(qlt_plogi_ack_t),
0, NULL);
sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t),
0, NULL);
if (!qla_tgt_plogi_cachep) {
ql_log(ql_log_fatal, NULL, 0xe06d,

150
drivers/scsi/qla2xxx/qla_target.h
View file

@ -118,84 +118,6 @@
? le16_to_cpu((iocb)->u.isp2x.target.extended) \
: (uint16_t)(iocb)->u.isp2x.target.id.standard)
#ifndef IMMED_NOTIFY_TYPE
#define IMMED_NOTIFY_TYPE 0x0D /* Immediate notify entry. */
/*
* ISP queue - immediate notify entry structure definition.
* This is sent by the ISP to the Target driver.
* This IOCB would have report of events sent by the
* initiator, that needs to be handled by the target
* driver immediately.
*/
struct imm_ntfy_from_isp {
uint8_t entry_type; /* Entry type. */
uint8_t entry_count; /* Entry count. */
uint8_t sys_define; /* System defined. */
uint8_t entry_status; /* Entry Status. */
union {
struct {
uint32_t sys_define_2; /* System defined. */
target_id_t target;
uint16_t lun;
uint8_t target_id;
uint8_t reserved_1;
uint16_t status_modifier;
uint16_t status;
uint16_t task_flags;
uint16_t seq_id;
uint16_t srr_rx_id;
uint32_t srr_rel_offs;
uint16_t srr_ui;
#define SRR_IU_DATA_IN 0x1
#define SRR_IU_DATA_OUT 0x5
#define SRR_IU_STATUS 0x7
uint16_t srr_ox_id;
uint8_t reserved_2[28];
} isp2x;
struct {
uint32_t reserved;
uint16_t nport_handle;
uint16_t reserved_2;
uint16_t flags;
#define NOTIFY24XX_FLAGS_GLOBAL_TPRLO BIT_1
#define NOTIFY24XX_FLAGS_PUREX_IOCB BIT_0
uint16_t srr_rx_id;
uint16_t status;
uint8_t status_subcode;
uint8_t fw_handle;
uint32_t exchange_address;
uint32_t srr_rel_offs;
uint16_t srr_ui;
uint16_t srr_ox_id;
union {
struct {
uint8_t node_name[8];
} plogi; /* PLOGI/ADISC/PDISC */
struct {
/* PRLI word 3 bit 0-15 */
uint16_t wd3_lo;
uint8_t resv0[6];
} prli;
struct {
uint8_t port_id[3];
uint8_t resv1;
uint16_t nport_handle;
uint16_t resv2;
} req_els;
} u;
uint8_t port_name[8];
uint8_t resv3[3];
uint8_t vp_index;
uint32_t reserved_5;
uint8_t port_id[3];
uint8_t reserved_6;
} isp24;
} u;
uint16_t reserved_7;
uint16_t ox_id;
} __packed;
#endif
#ifndef NOTIFY_ACK_TYPE
#define NOTIFY_ACK_TYPE 0x0E /* Notify acknowledge entry. */
/*
@ -731,7 +653,7 @@ struct abts_resp_from_24xx_fw {
\********************************************************************/
struct qla_tgt_mgmt_cmd;
struct qla_tgt_sess;
struct fc_port;
/*
* This structure provides a template of function calls that the
@ -748,17 +670,18 @@ struct qla_tgt_func_tmpl {
uint32_t);
void (*free_cmd)(struct qla_tgt_cmd *);
void (*free_mcmd)(struct qla_tgt_mgmt_cmd *);
void (*free_session)(struct qla_tgt_sess *);
void (*free_session)(struct fc_port *);
int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *,
struct qla_tgt_sess *);
void (*update_sess)(struct qla_tgt_sess *, port_id_t, uint16_t, bool);
struct qla_tgt_sess *(*find_sess_by_loop_id)(struct scsi_qla_host *,
struct fc_port *);
void (*update_sess)(struct fc_port *, port_id_t, uint16_t, bool);
struct fc_port *(*find_sess_by_loop_id)(struct scsi_qla_host *,
const uint16_t);
struct qla_tgt_sess *(*find_sess_by_s_id)(struct scsi_qla_host *,
struct fc_port *(*find_sess_by_s_id)(struct scsi_qla_host *,
const uint8_t *);
void (*clear_nacl_from_fcport_map)(struct qla_tgt_sess *);
void (*shutdown_sess)(struct qla_tgt_sess *);
void (*clear_nacl_from_fcport_map)(struct fc_port *);
void (*put_sess)(struct fc_port *);
void (*shutdown_sess)(struct fc_port *);
};
int qla2x00_wait_for_hba_online(struct scsi_qla_host *);
@ -874,9 +797,6 @@ struct qla_tgt {
/* Count of sessions refering qla_tgt. Protected by hardware_lock. */
int sess_count;
/* Protected by hardware_lock. Addition also protected by tgt_mutex. */
struct list_head sess_list;
/* Protected by hardware_lock */
struct list_head del_sess_list;
struct delayed_work sess_del_work;
@ -910,52 +830,6 @@ enum qla_sess_deletion {
QLA_SESS_DELETION_IN_PROGRESS = 2,
};
typedef enum {
QLT_PLOGI_LINK_SAME_WWN,
QLT_PLOGI_LINK_CONFLICT,
QLT_PLOGI_LINK_MAX
} qlt_plogi_link_t;
typedef struct {
struct list_head list;
struct imm_ntfy_from_isp iocb;
port_id_t id;
int ref_count;
} qlt_plogi_ack_t;
/*
* Equivilant to IT Nexus (Initiator-Target)
*/
struct qla_tgt_sess {
uint16_t loop_id;
port_id_t d_id;
unsigned int conf_compl_supported:1;
unsigned int deleted:2;
unsigned int local:1;
unsigned int logout_on_delete:1;
unsigned int keep_nport_handle:1;
unsigned int send_els_logo:1;
unsigned char logout_completed;
int generation;
struct se_session *se_sess;
struct kref sess_kref;
struct scsi_qla_host *vha;
struct qla_tgt *tgt;
struct list_head sess_list_entry;
unsigned long expires;
struct list_head del_list_entry;
uint8_t port_name[WWN_SIZE];
struct work_struct free_work;
qlt_plogi_ack_t *plogi_link[QLT_PLOGI_LINK_MAX];
};
enum trace_flags {
TRC_NEW_CMD = BIT_0,
TRC_DO_WORK = BIT_1,
@ -981,7 +855,7 @@ enum trace_flags {
struct qla_tgt_cmd {
struct se_cmd se_cmd;
struct qla_tgt_sess *sess;
struct fc_port *sess;
int state;
struct work_struct free_work;
struct work_struct work;
@ -1046,7 +920,7 @@ struct qla_tgt_sess_work_param {
struct qla_tgt_mgmt_cmd {
uint16_t tmr_func;
uint8_t fc_tm_rsp;
struct qla_tgt_sess *sess;
struct fc_port *sess;
struct se_cmd se_cmd;
struct work_struct free_work;
unsigned int flags;
@ -1097,7 +971,7 @@ extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);
extern int qlt_lport_register(void *, u64, u64, u64,
int (*callback)(struct scsi_qla_host *, void *, u64, u64));
extern void qlt_lport_deregister(struct scsi_qla_host *);
void qlt_put_sess(struct qla_tgt_sess *sess);
extern void qlt_unreg_sess(struct fc_port *);
extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);
extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int);
extern int __init qlt_init(void);

130
drivers/scsi/qla2xxx/tcm_qla2xxx.c
View file

@ -339,9 +339,26 @@ static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd)
qlt_free_cmd(cmd);
}
static void tcm_qla2xxx_release_session(struct kref *kref)
{
struct fc_port *sess = container_of(kref,
struct fc_port, sess_kref);
qlt_unreg_sess(sess);
}
static void tcm_qla2xxx_put_sess(struct fc_port *sess)
{
if (!sess)
return;
assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
kref_put(&sess->sess_kref, tcm_qla2xxx_release_session);
}
static void tcm_qla2xxx_close_session(struct se_session *se_sess)
{
struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr;
struct fc_port *sess = se_sess->fabric_sess_ptr;
struct scsi_qla_host *vha;
unsigned long flags;
@ -350,7 +367,7 @@ static void tcm_qla2xxx_close_session(struct se_session *se_sess)
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
target_sess_cmd_list_set_waiting(se_sess);
qlt_put_sess(sess);
tcm_qla2xxx_put_sess(sess);
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
}
@ -441,7 +458,7 @@ static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
{
struct se_cmd *se_cmd = &cmd->se_cmd;
struct se_session *se_sess;
struct qla_tgt_sess *sess;
struct fc_port *sess;
#ifdef CONFIG_TCM_QLA2XXX_DEBUG
struct se_portal_group *se_tpg;
struct tcm_qla2xxx_tpg *tpg;
@ -456,7 +473,7 @@ static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
sess = cmd->sess;
if (!sess) {
pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n");
pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n");
return -EINVAL;
}
@ -565,7 +582,7 @@ static void tcm_qla2xxx_handle_dif_err(struct qla_tgt_cmd *cmd)
static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun,
uint16_t tmr_func, uint32_t tag)
{
struct qla_tgt_sess *sess = mcmd->sess;
struct fc_port *sess = mcmd->sess;
struct se_cmd *se_cmd = &mcmd->se_cmd;
int transl_tmr_func = 0;
@ -746,11 +763,11 @@ static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
}
static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
struct tcm_qla2xxx_nacl *, struct qla_tgt_sess *);
struct tcm_qla2xxx_nacl *, struct fc_port *);
/*
* Expected to be called with struct qla_hw_data->tgt.sess_lock held
*/
static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess)
static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess)
{
struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
struct se_portal_group *se_tpg = se_nacl->se_tpg;
@ -789,7 +806,7 @@ static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess)
tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess);
}
static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess)
static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess)
{
assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
target_sess_cmd_list_set_waiting(sess->se_sess);
@ -1174,7 +1191,7 @@ static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(
/*
* Expected to be called with struct qla_hw_data->tgt.sess_lock held
*/
static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id(
static struct fc_port *tcm_qla2xxx_find_sess_by_s_id(
scsi_qla_host_t *vha,
const uint8_t *s_id)
{
@ -1202,12 +1219,12 @@ static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id(
se_nacl, se_nacl->initiatorname);
nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
if (!nacl->qla_tgt_sess) {
pr_err("Unable to locate struct qla_tgt_sess\n");
if (!nacl->fc_port) {
pr_err("Unable to locate struct fc_port\n");
return NULL;
}
return nacl->qla_tgt_sess;
return nacl->fc_port;
}
/*
@ -1218,7 +1235,7 @@ static void tcm_qla2xxx_set_sess_by_s_id(
struct se_node_acl *new_se_nacl,
struct tcm_qla2xxx_nacl *nacl,
struct se_session *se_sess,
struct qla_tgt_sess *qla_tgt_sess,
struct fc_port *fc_port,
uint8_t *s_id)
{
u32 key;
@ -1242,22 +1259,22 @@ static void tcm_qla2xxx_set_sess_by_s_id(
pr_debug("Wiping nonexisting fc_port entry\n");
}
qla_tgt_sess->se_sess = se_sess;
nacl->qla_tgt_sess = qla_tgt_sess;
fc_port->se_sess = se_sess;
nacl->fc_port = fc_port;
return;
}
if (nacl->qla_tgt_sess) {
if (nacl->fc_port) {
if (new_se_nacl == NULL) {
pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n");
pr_debug("Clearing existing nacl->fc_port and fc_port entry\n");
btree_remove32(&lport->lport_fcport_map, key);
nacl->qla_tgt_sess = NULL;
nacl->fc_port = NULL;
return;
}
pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n");
pr_debug("Replacing existing nacl->fc_port and fc_port entry\n");
btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
qla_tgt_sess->se_sess = se_sess;
nacl->qla_tgt_sess = qla_tgt_sess;
fc_port->se_sess = se_sess;
nacl->fc_port = fc_port;
return;
}
@ -1267,19 +1284,19 @@ static void tcm_qla2xxx_set_sess_by_s_id(
return;
}
pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n");
pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n");
btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
qla_tgt_sess->se_sess = se_sess;
nacl->qla_tgt_sess = qla_tgt_sess;
fc_port->se_sess = se_sess;
nacl->fc_port = fc_port;
pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n",
nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname);
pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n",
nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
}
/*
* Expected to be called with struct qla_hw_data->tgt.sess_lock held
*/
static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id(
static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id(
scsi_qla_host_t *vha,
const uint16_t loop_id)
{
@ -1307,12 +1324,12 @@ static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id(
nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
if (!nacl->qla_tgt_sess) {
pr_err("Unable to locate struct qla_tgt_sess\n");
if (!nacl->fc_port) {
pr_err("Unable to locate struct fc_port\n");
return NULL;
}
return nacl->qla_tgt_sess;
return nacl->fc_port;
}
/*
@ -1323,7 +1340,7 @@ static void tcm_qla2xxx_set_sess_by_loop_id(
struct se_node_acl *new_se_nacl,
struct tcm_qla2xxx_nacl *nacl,
struct se_session *se_sess,
struct qla_tgt_sess *qla_tgt_sess,
struct fc_port *fc_port,
uint16_t loop_id)
{
struct se_node_acl *saved_nacl;
@ -1338,27 +1355,27 @@ static void tcm_qla2xxx_set_sess_by_loop_id(
if (!saved_nacl) {
pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
fc_loopid->se_nacl = new_se_nacl;
if (qla_tgt_sess->se_sess != se_sess)
qla_tgt_sess->se_sess = se_sess;
if (nacl->qla_tgt_sess != qla_tgt_sess)
nacl->qla_tgt_sess = qla_tgt_sess;
if (fc_port->se_sess != se_sess)
fc_port->se_sess = se_sess;
if (nacl->fc_port != fc_port)
nacl->fc_port = fc_port;
return;
}
if (nacl->qla_tgt_sess) {
if (nacl->fc_port) {
if (new_se_nacl == NULL) {
pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n");
pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n");
fc_loopid->se_nacl = NULL;
nacl->qla_tgt_sess = NULL;
nacl->fc_port = NULL;
return;
}
pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n");
pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n");
fc_loopid->se_nacl = new_se_nacl;
if (qla_tgt_sess->se_sess != se_sess)
qla_tgt_sess->se_sess = se_sess;
if (nacl->qla_tgt_sess != qla_tgt_sess)
nacl->qla_tgt_sess = qla_tgt_sess;
if (fc_port->se_sess != se_sess)
fc_port->se_sess = se_sess;
if (nacl->fc_port != fc_port)
nacl->fc_port = fc_port;
return;
}
@ -1368,22 +1385,22 @@ static void tcm_qla2xxx_set_sess_by_loop_id(
return;
}
pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n");
pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n");
fc_loopid->se_nacl = new_se_nacl;
if (qla_tgt_sess->se_sess != se_sess)
qla_tgt_sess->se_sess = se_sess;
if (nacl->qla_tgt_sess != qla_tgt_sess)
nacl->qla_tgt_sess = qla_tgt_sess;
if (fc_port->se_sess != se_sess)
fc_port->se_sess = se_sess;
if (nacl->fc_port != fc_port)
nacl->fc_port = fc_port;
pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n",
nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname);
pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n",
nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
}
/*
* Should always be called with qla_hw_data->tgt.sess_lock held.
*/
static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
struct tcm_qla2xxx_nacl *nacl, struct qla_tgt_sess *sess)
struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess)
{
struct se_session *se_sess = sess->se_sess;
unsigned char be_sid[3];
@ -1398,7 +1415,7 @@ static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
sess, sess->loop_id);
}
static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess)
static void tcm_qla2xxx_free_session(struct fc_port *sess)
{
struct qla_tgt *tgt = sess->tgt;
struct qla_hw_data *ha = tgt->ha;
@ -1410,7 +1427,7 @@ static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess)
se_sess = sess->se_sess;
if (!se_sess) {
pr_err("struct qla_tgt_sess->se_sess is NULL\n");
pr_err("struct fc_port->se_sess is NULL\n");
dump_stack();
return;
}
@ -1437,7 +1454,7 @@ static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg,
struct se_node_acl *se_nacl = se_sess->se_node_acl;
struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
struct tcm_qla2xxx_nacl, se_node_acl);
struct qla_tgt_sess *qlat_sess = p;
struct fc_port *qlat_sess = p;
uint16_t loop_id = qlat_sess->loop_id;
unsigned long flags;
unsigned char be_sid[3];
@ -1467,7 +1484,7 @@ static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg,
static int tcm_qla2xxx_check_initiator_node_acl(
scsi_qla_host_t *vha,
unsigned char *fc_wwpn,
struct qla_tgt_sess *qlat_sess)
struct fc_port *qlat_sess)
{
struct qla_hw_data *ha = vha->hw;
struct tcm_qla2xxx_lport *lport;
@ -1511,7 +1528,7 @@ static int tcm_qla2xxx_check_initiator_node_acl(
return 0;
}
static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id,
static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id,
uint16_t loop_id, bool conf_compl_supported)
{
struct qla_tgt *tgt = sess->tgt;
@ -1603,6 +1620,7 @@ static struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
.find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
.find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
.clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
.put_sess = tcm_qla2xxx_put_sess,
.shutdown_sess = tcm_qla2xxx_shutdown_sess,
};

4
drivers/scsi/qla2xxx/tcm_qla2xxx.h
View file

@ -20,8 +20,8 @@ struct tcm_qla2xxx_nacl {
u64 nport_wwnn;
/* ASCII formatted WWPN for FC Initiator Nport */
char nport_name[TCM_QLA2XXX_NAMELEN];
/* Pointer to qla_tgt_sess */
struct qla_tgt_sess *qla_tgt_sess;
/* Pointer to fc_port */
struct fc_port *fc_port;
/* Pointer to TCM FC nexus */
struct se_session *nport_nexus;
};