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path: root/drivers/scsi/lpfc/lpfc_nportdisc.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nportdisc.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_nportdisc.c160
1 files changed, 132 insertions, 28 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 880af0cd463d..4a0e3406e37a 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -287,6 +287,24 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
+ if (wwn_to_u64(sp->portName.u.wwn) == 0) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0140 PLOGI Reject: invalid nname\n");
+ stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+ stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
+ lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
+ NULL);
+ return 0;
+ }
+ if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0141 PLOGI Reject: invalid pname\n");
+ stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+ stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
+ lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
+ NULL);
+ return 0;
+ }
if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3) == 0)) {
/* Reject this request because invalid parameters */
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
@@ -343,8 +361,7 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
lpfc_config_link(phba, mbox);
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->vport = vport;
- rc = lpfc_sli_issue_mbox
- (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
goto out;
@@ -407,6 +424,61 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
ndlp, mbox);
return 1;
}
+
+ /* If the remote NPort logs into us, before we can initiate
+ * discovery to them, cleanup the NPort from discovery accordingly.
+ */
+ if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag &= ~NLP_DELAY_TMO;
+ spin_unlock_irq(shost->host_lock);
+ del_timer_sync(&ndlp->nlp_delayfunc);
+ ndlp->nlp_last_elscmd = 0;
+
+ if (!list_empty(&ndlp->els_retry_evt.evt_listp))
+ list_del_init(&ndlp->els_retry_evt.evt_listp);
+
+ if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+ spin_unlock_irq(shost->host_lock);
+
+ if ((ndlp->nlp_flag & NLP_ADISC_SND) &&
+ (vport->num_disc_nodes)) {
+ /* Check to see if there are more
+ * ADISCs to be sent
+ */
+ lpfc_more_adisc(vport);
+
+ if ((vport->num_disc_nodes == 0) &&
+ (vport->fc_npr_cnt))
+ lpfc_els_disc_plogi(vport);
+
+ if (vport->num_disc_nodes == 0) {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_NDISC_ACTIVE;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_can_disctmo(vport);
+ lpfc_end_rscn(vport);
+ }
+ }
+ else if (vport->num_disc_nodes) {
+ /* Check to see if there are more
+ * PLOGIs to be sent
+ */
+ lpfc_more_plogi(vport);
+
+ if (vport->num_disc_nodes == 0) {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_NDISC_ACTIVE;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_can_disctmo(vport);
+ lpfc_end_rscn(vport);
+ }
+ }
+ }
+ }
+
lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
return 1;
@@ -501,12 +573,9 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
spin_unlock_irq(shost->host_lock);
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
- ndlp->nlp_prev_state = ndlp->nlp_state;
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
- } else {
- ndlp->nlp_prev_state = ndlp->nlp_state;
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
}
+ ndlp->nlp_prev_state = ndlp->nlp_state;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
@@ -594,6 +663,25 @@ lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
return ndlp->nlp_state;
}
+static uint32_t
+lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ void *arg, uint32_t evt)
+{
+ /* This transition is only legal if we previously
+ * rcv'ed a PLOGI. Since we don't want 2 discovery threads
+ * working on the same NPortID, do nothing for this thread
+ * to stop it.
+ */
+ if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0253 Illegal State Transition: node x%x "
+ "event x%x, state x%x Data: x%x x%x\n",
+ ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
+ ndlp->nlp_flag);
+ }
+ return ndlp->nlp_state;
+}
+
/* Start of Discovery State Machine routines */
static uint32_t
@@ -605,11 +693,8 @@ lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
cmdiocb = (struct lpfc_iocbq *) arg;
if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
- ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
return ndlp->nlp_state;
}
- lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
@@ -618,7 +703,6 @@ lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
lpfc_issue_els_logo(vport, ndlp, 0);
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
return ndlp->nlp_state;
}
@@ -633,7 +717,6 @@ lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
ndlp->nlp_flag |= NLP_LOGO_ACC;
spin_unlock_irq(shost->host_lock);
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
return ndlp->nlp_state;
}
@@ -642,7 +725,6 @@ static uint32_t
lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
- lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
@@ -650,7 +732,6 @@ static uint32_t
lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
- lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
@@ -752,6 +833,7 @@ lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_iocbq *cmdiocb, *rspiocb;
struct lpfc_dmabuf *pcmd, *prsp, *mp;
uint32_t *lp;
@@ -778,6 +860,12 @@ lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
lp = (uint32_t *) prsp->virt;
sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
+ if (wwn_to_u64(sp->portName.u.wwn) == 0 ||
+ wwn_to_u64(sp->nodeName.u.wwn) == 0) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0142 PLOGI RSP: Invalid WWN.\n");
+ goto out;
+ }
if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3))
goto out;
/* PLOGI chkparm OK */
@@ -828,13 +916,15 @@ lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
}
mbox->context2 = lpfc_nlp_get(ndlp);
mbox->vport = vport;
- if (lpfc_sli_issue_mbox(phba, mbox,
- (MBX_NOWAIT | MBX_STOP_IOCB))
+ if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
!= MBX_NOT_FINISHED) {
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_REG_LOGIN_ISSUE);
return ndlp->nlp_state;
}
+ /* decrement node reference count to the failed mbox
+ * command
+ */
lpfc_nlp_put(ndlp);
mp = (struct lpfc_dmabuf *) mbox->context1;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
@@ -864,13 +954,27 @@ out:
"0261 Cannot Register NameServer login\n");
}
- /* Free this node since the driver cannot login or has the wrong
- sparm */
- lpfc_drop_node(vport, ndlp);
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_DEFER_RM;
+ spin_unlock_irq(shost->host_lock);
return NLP_STE_FREED_NODE;
}
static uint32_t
+lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ void *arg, uint32_t evt)
+{
+ return ndlp->nlp_state;
+}
+
+static uint32_t
+lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
+ struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
+{
+ return ndlp->nlp_state;
+}
+
+static uint32_t
lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
@@ -1137,7 +1241,7 @@ lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
(ndlp == (struct lpfc_nodelist *) mb->context2)) {
mp = (struct lpfc_dmabuf *) (mb->context1);
if (mp) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ __lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
lpfc_nlp_put(ndlp);
@@ -1197,8 +1301,8 @@ lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
* retry discovery.
*/
if (mb->mbxStatus == MBXERR_RPI_FULL) {
- ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
+ ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
return ndlp->nlp_state;
}
@@ -1378,7 +1482,7 @@ out:
lpfc_issue_els_logo(vport, ndlp, 0);
ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
return ndlp->nlp_state;
}
@@ -1753,7 +1857,7 @@ lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
irsp = &rspiocb->iocb;
if (irsp->ulpStatus) {
- lpfc_drop_node(vport, ndlp);
+ ndlp->nlp_flag |= NLP_DEFER_RM;
return NLP_STE_FREED_NODE;
}
return ndlp->nlp_state;
@@ -1942,9 +2046,9 @@ static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
lpfc_disc_illegal, /* CMPL_PRLI */
- lpfc_disc_illegal, /* CMPL_LOGO */
+ lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
lpfc_disc_illegal, /* CMPL_ADISC */
- lpfc_disc_illegal, /* CMPL_REG_LOGIN */
+ lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
lpfc_device_rm_plogi_issue, /* DEVICE_RM */
lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
@@ -1968,7 +2072,7 @@ static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
- lpfc_disc_illegal, /* CMPL_PLOGI */
+ lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
lpfc_disc_illegal, /* CMPL_PRLI */
lpfc_disc_illegal, /* CMPL_LOGO */
lpfc_disc_illegal, /* CMPL_ADISC */
@@ -1982,7 +2086,7 @@ static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
- lpfc_disc_illegal, /* CMPL_PLOGI */
+ lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
lpfc_disc_illegal, /* CMPL_LOGO */
lpfc_disc_illegal, /* CMPL_ADISC */
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-14 22:20:36 +0000