![James Smart](/assets/img/avatar_default.png)
Add support for new dev_loss_tmo callback Goodness is that it removes code for a parallel nodev timer that existed in the driver Add support for the new fast_io_fail callback Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2002 lines
57 KiB
C
2002 lines
57 KiB
C
/*******************************************************************
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* This file is part of the Emulex Linux Device Driver for *
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* Fibre Channel Host Bus Adapters. *
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* Copyright (C) 2004-2006 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.emulex.com *
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* Portions Copyright (C) 2004-2005 Christoph Hellwig *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*******************************************************************/
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#include <linux/blkdev.h>
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#include <linux/pci.h>
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#include <linux/interrupt.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_transport_fc.h>
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#include "lpfc_hw.h"
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#include "lpfc_sli.h"
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#include "lpfc_disc.h"
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#include "lpfc_scsi.h"
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#include "lpfc.h"
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#include "lpfc_logmsg.h"
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#include "lpfc_crtn.h"
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/* Called to verify a rcv'ed ADISC was intended for us. */
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static int
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lpfc_check_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
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struct lpfc_name * nn, struct lpfc_name * pn)
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{
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/* Compare the ADISC rsp WWNN / WWPN matches our internal node
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* table entry for that node.
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*/
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if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)) != 0)
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return 0;
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if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)) != 0)
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return 0;
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/* we match, return success */
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return 1;
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}
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int
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lpfc_check_sparm(struct lpfc_hba * phba,
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struct lpfc_nodelist * ndlp, struct serv_parm * sp,
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uint32_t class)
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{
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volatile struct serv_parm *hsp = &phba->fc_sparam;
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uint16_t hsp_value, ssp_value = 0;
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/*
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* The receive data field size and buffer-to-buffer receive data field
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* size entries are 16 bits but are represented as two 8-bit fields in
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* the driver data structure to account for rsvd bits and other control
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* bits. Reconstruct and compare the fields as a 16-bit values before
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* correcting the byte values.
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*/
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if (sp->cls1.classValid) {
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hsp_value = (hsp->cls1.rcvDataSizeMsb << 8) |
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hsp->cls1.rcvDataSizeLsb;
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ssp_value = (sp->cls1.rcvDataSizeMsb << 8) |
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sp->cls1.rcvDataSizeLsb;
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if (ssp_value > hsp_value) {
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sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb;
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sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
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}
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} else if (class == CLASS1) {
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return 0;
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}
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if (sp->cls2.classValid) {
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hsp_value = (hsp->cls2.rcvDataSizeMsb << 8) |
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hsp->cls2.rcvDataSizeLsb;
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ssp_value = (sp->cls2.rcvDataSizeMsb << 8) |
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sp->cls2.rcvDataSizeLsb;
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if (ssp_value > hsp_value) {
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sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb;
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sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
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}
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} else if (class == CLASS2) {
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return 0;
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}
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if (sp->cls3.classValid) {
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hsp_value = (hsp->cls3.rcvDataSizeMsb << 8) |
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hsp->cls3.rcvDataSizeLsb;
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ssp_value = (sp->cls3.rcvDataSizeMsb << 8) |
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sp->cls3.rcvDataSizeLsb;
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if (ssp_value > hsp_value) {
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sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb;
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sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
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}
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} else if (class == CLASS3) {
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return 0;
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}
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/*
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* Preserve the upper four bits of the MSB from the PLOGI response.
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* These bits contain the Buffer-to-Buffer State Change Number
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* from the target and need to be passed to the FW.
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*/
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hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
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ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
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if (ssp_value > hsp_value) {
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sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
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sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
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(hsp->cmn.bbRcvSizeMsb & 0x0F);
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}
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memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
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memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
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return 1;
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}
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static void *
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lpfc_check_elscmpl_iocb(struct lpfc_hba * phba,
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struct lpfc_iocbq *cmdiocb,
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struct lpfc_iocbq *rspiocb)
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{
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struct lpfc_dmabuf *pcmd, *prsp;
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uint32_t *lp;
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void *ptr = NULL;
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IOCB_t *irsp;
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irsp = &rspiocb->iocb;
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pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
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/* For lpfc_els_abort, context2 could be zero'ed to delay
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* freeing associated memory till after ABTS completes.
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*/
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if (pcmd) {
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prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
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list);
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if (prsp) {
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lp = (uint32_t *) prsp->virt;
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ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
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}
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} else {
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/* Force ulpStatus error since we are returning NULL ptr */
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if (!(irsp->ulpStatus)) {
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irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
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irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
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}
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ptr = NULL;
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}
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return ptr;
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}
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/*
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* Free resources / clean up outstanding I/Os
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* associated with a LPFC_NODELIST entry. This
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* routine effectively results in a "software abort".
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*/
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int
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lpfc_els_abort(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
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int send_abts)
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{
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struct lpfc_sli *psli;
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struct lpfc_sli_ring *pring;
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struct lpfc_iocbq *iocb, *next_iocb;
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IOCB_t *icmd;
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int found = 0;
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/* Abort outstanding I/O on NPort <nlp_DID> */
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lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
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"%d:0205 Abort outstanding I/O on NPort x%x "
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"Data: x%x x%x x%x\n",
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phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
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ndlp->nlp_state, ndlp->nlp_rpi);
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psli = &phba->sli;
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pring = &psli->ring[LPFC_ELS_RING];
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/* First check the txq */
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do {
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found = 0;
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spin_lock_irq(phba->host->host_lock);
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list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
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/* Check to see if iocb matches the nport we are looking
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for */
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if ((lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))) {
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found = 1;
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/* It matches, so deque and call compl with an
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error */
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list_del(&iocb->list);
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pring->txq_cnt--;
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if (iocb->iocb_cmpl) {
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icmd = &iocb->iocb;
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icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
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icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
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spin_unlock_irq(phba->host->host_lock);
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(iocb->iocb_cmpl) (phba, iocb, iocb);
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spin_lock_irq(phba->host->host_lock);
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} else
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lpfc_sli_release_iocbq(phba, iocb);
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break;
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}
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}
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spin_unlock_irq(phba->host->host_lock);
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} while (found);
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/* Everything on txcmplq will be returned by firmware
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* with a no rpi / linkdown / abort error. For ring 0,
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* ELS discovery, we want to get rid of it right here.
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*/
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/* Next check the txcmplq */
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do {
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found = 0;
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spin_lock_irq(phba->host->host_lock);
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list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
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list) {
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/* Check to see if iocb matches the nport we are looking
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for */
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if ((lpfc_check_sli_ndlp (phba, pring, iocb, ndlp))) {
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found = 1;
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/* It matches, so deque and call compl with an
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error */
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list_del(&iocb->list);
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pring->txcmplq_cnt--;
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icmd = &iocb->iocb;
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/* If the driver is completing an ELS
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* command early, flush it out of the firmware.
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*/
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if (send_abts &&
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(icmd->ulpCommand == CMD_ELS_REQUEST64_CR) &&
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(icmd->un.elsreq64.bdl.ulpIoTag32)) {
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lpfc_sli_issue_abort_iotag32(phba,
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pring, iocb);
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}
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if (iocb->iocb_cmpl) {
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icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
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icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
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spin_unlock_irq(phba->host->host_lock);
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(iocb->iocb_cmpl) (phba, iocb, iocb);
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spin_lock_irq(phba->host->host_lock);
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} else
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lpfc_sli_release_iocbq(phba, iocb);
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break;
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}
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}
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spin_unlock_irq(phba->host->host_lock);
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} while(found);
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/* If we are delaying issuing an ELS command, cancel it */
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if (ndlp->nlp_flag & NLP_DELAY_TMO)
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lpfc_cancel_retry_delay_tmo(phba, ndlp);
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return 0;
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}
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static int
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lpfc_rcv_plogi(struct lpfc_hba * phba,
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struct lpfc_nodelist * ndlp,
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struct lpfc_iocbq *cmdiocb)
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{
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struct lpfc_dmabuf *pcmd;
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uint32_t *lp;
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IOCB_t *icmd;
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struct serv_parm *sp;
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LPFC_MBOXQ_t *mbox;
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struct ls_rjt stat;
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int rc;
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memset(&stat, 0, sizeof (struct ls_rjt));
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if (phba->hba_state <= LPFC_FLOGI) {
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/* Before responding to PLOGI, check for pt2pt mode.
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* If we are pt2pt, with an outstanding FLOGI, abort
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* the FLOGI and resend it first.
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*/
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if (phba->fc_flag & FC_PT2PT) {
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lpfc_els_abort_flogi(phba);
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if (!(phba->fc_flag & FC_PT2PT_PLOGI)) {
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/* If the other side is supposed to initiate
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* the PLOGI anyway, just ACC it now and
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* move on with discovery.
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*/
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phba->fc_edtov = FF_DEF_EDTOV;
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phba->fc_ratov = FF_DEF_RATOV;
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/* Start discovery - this should just do
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CLEAR_LA */
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lpfc_disc_start(phba);
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} else {
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lpfc_initial_flogi(phba);
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}
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} else {
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stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
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stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
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lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb,
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ndlp);
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return 0;
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}
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}
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pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
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lp = (uint32_t *) pcmd->virt;
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sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
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if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3) == 0)) {
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/* Reject this request because invalid parameters */
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stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
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stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
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lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
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return 0;
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}
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icmd = &cmdiocb->iocb;
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/* PLOGI chkparm OK */
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lpfc_printf_log(phba,
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KERN_INFO,
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LOG_ELS,
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"%d:0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
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phba->brd_no,
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ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
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ndlp->nlp_rpi);
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if ((phba->cfg_fcp_class == 2) &&
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(sp->cls2.classValid)) {
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ndlp->nlp_fcp_info |= CLASS2;
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} else {
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ndlp->nlp_fcp_info |= CLASS3;
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}
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ndlp->nlp_class_sup = 0;
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if (sp->cls1.classValid)
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ndlp->nlp_class_sup |= FC_COS_CLASS1;
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if (sp->cls2.classValid)
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ndlp->nlp_class_sup |= FC_COS_CLASS2;
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if (sp->cls3.classValid)
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ndlp->nlp_class_sup |= FC_COS_CLASS3;
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if (sp->cls4.classValid)
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ndlp->nlp_class_sup |= FC_COS_CLASS4;
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ndlp->nlp_maxframe =
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((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
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/* no need to reg_login if we are already in one of these states */
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switch (ndlp->nlp_state) {
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case NLP_STE_NPR_NODE:
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if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
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break;
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case NLP_STE_REG_LOGIN_ISSUE:
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case NLP_STE_PRLI_ISSUE:
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case NLP_STE_UNMAPPED_NODE:
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case NLP_STE_MAPPED_NODE:
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lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0);
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return 1;
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}
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if ((phba->fc_flag & FC_PT2PT)
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&& !(phba->fc_flag & FC_PT2PT_PLOGI)) {
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/* rcv'ed PLOGI decides what our NPortId will be */
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phba->fc_myDID = icmd->un.rcvels.parmRo;
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mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
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if (mbox == NULL)
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goto out;
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lpfc_config_link(phba, mbox);
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mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
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rc = lpfc_sli_issue_mbox
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(phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
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if (rc == MBX_NOT_FINISHED) {
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mempool_free( mbox, phba->mbox_mem_pool);
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goto out;
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}
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lpfc_can_disctmo(phba);
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}
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mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
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if (mbox == NULL)
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goto out;
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if (lpfc_reg_login(phba, icmd->un.rcvels.remoteID,
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(uint8_t *) sp, mbox, 0)) {
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mempool_free( mbox, phba->mbox_mem_pool);
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goto out;
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}
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/* ACC PLOGI rsp command needs to execute first,
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* queue this mbox command to be processed later.
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*/
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mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
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mbox->context2 = ndlp;
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ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
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/*
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* If there is an outstanding PLOGI issued, abort it before
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* sending ACC rsp for received PLOGI. If pending plogi
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* is not canceled here, the plogi will be rejected by
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* remote port and will be retried. On a configuration with
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* single discovery thread, this will cause a huge delay in
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* discovery. Also this will cause multiple state machines
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* running in parallel for this node.
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*/
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if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
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/* software abort outstanding PLOGI */
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lpfc_els_abort(phba, ndlp, 1);
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}
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lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0);
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return 1;
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out:
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stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
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stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
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lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
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return 0;
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}
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static int
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lpfc_rcv_padisc(struct lpfc_hba * phba,
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struct lpfc_nodelist * ndlp,
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struct lpfc_iocbq *cmdiocb)
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{
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struct lpfc_dmabuf *pcmd;
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struct serv_parm *sp;
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struct lpfc_name *pnn, *ppn;
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struct ls_rjt stat;
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ADISC *ap;
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IOCB_t *icmd;
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uint32_t *lp;
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uint32_t cmd;
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pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
lp = (uint32_t *) pcmd->virt;
|
|
|
|
cmd = *lp++;
|
|
if (cmd == ELS_CMD_ADISC) {
|
|
ap = (ADISC *) lp;
|
|
pnn = (struct lpfc_name *) & ap->nodeName;
|
|
ppn = (struct lpfc_name *) & ap->portName;
|
|
} else {
|
|
sp = (struct serv_parm *) lp;
|
|
pnn = (struct lpfc_name *) & sp->nodeName;
|
|
ppn = (struct lpfc_name *) & sp->portName;
|
|
}
|
|
|
|
icmd = &cmdiocb->iocb;
|
|
if ((icmd->ulpStatus == 0) &&
|
|
(lpfc_check_adisc(phba, ndlp, pnn, ppn))) {
|
|
if (cmd == ELS_CMD_ADISC) {
|
|
lpfc_els_rsp_adisc_acc(phba, cmdiocb, ndlp);
|
|
} else {
|
|
lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp,
|
|
NULL, 0);
|
|
}
|
|
return 1;
|
|
}
|
|
/* Reject this request because invalid parameters */
|
|
stat.un.b.lsRjtRsvd0 = 0;
|
|
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
|
|
stat.un.b.vendorUnique = 0;
|
|
lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
|
|
|
|
/* 1 sec timeout */
|
|
mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag |= NLP_DELAY_TMO;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
lpfc_rcv_logo(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp,
|
|
struct lpfc_iocbq *cmdiocb,
|
|
uint32_t els_cmd)
|
|
{
|
|
/* Put ndlp on NPR list with 1 sec timeout for plogi, ACC logo */
|
|
/* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
|
|
* PLOGIs during LOGO storms from a device.
|
|
*/
|
|
ndlp->nlp_flag |= NLP_LOGO_ACC;
|
|
if (els_cmd == ELS_CMD_PRLO)
|
|
lpfc_els_rsp_acc(phba, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
|
|
else
|
|
lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
|
|
|
|
if (!(ndlp->nlp_type & NLP_FABRIC) ||
|
|
(ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
|
|
/* Only try to re-login if this is NOT a Fabric Node */
|
|
mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag |= NLP_DELAY_TMO;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
} else {
|
|
ndlp->nlp_prev_state = ndlp->nlp_state;
|
|
ndlp->nlp_state = NLP_STE_UNUSED_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
|
|
}
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
/* The driver has to wait until the ACC completes before it continues
|
|
* processing the LOGO. The action will resume in
|
|
* lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
|
|
* unreg_login, the driver waits so the ACC does not get aborted.
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
lpfc_rcv_prli(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp,
|
|
struct lpfc_iocbq *cmdiocb)
|
|
{
|
|
struct lpfc_dmabuf *pcmd;
|
|
uint32_t *lp;
|
|
PRLI *npr;
|
|
struct fc_rport *rport = ndlp->rport;
|
|
u32 roles;
|
|
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
lp = (uint32_t *) pcmd->virt;
|
|
npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
|
|
|
|
ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
|
|
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
|
|
if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
|
|
(npr->prliType == PRLI_FCP_TYPE)) {
|
|
if (npr->initiatorFunc)
|
|
ndlp->nlp_type |= NLP_FCP_INITIATOR;
|
|
if (npr->targetFunc)
|
|
ndlp->nlp_type |= NLP_FCP_TARGET;
|
|
if (npr->Retry)
|
|
ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
|
|
}
|
|
if (rport) {
|
|
/* We need to update the rport role values */
|
|
roles = FC_RPORT_ROLE_UNKNOWN;
|
|
if (ndlp->nlp_type & NLP_FCP_INITIATOR)
|
|
roles |= FC_RPORT_ROLE_FCP_INITIATOR;
|
|
if (ndlp->nlp_type & NLP_FCP_TARGET)
|
|
roles |= FC_RPORT_ROLE_FCP_TARGET;
|
|
fc_remote_port_rolechg(rport, roles);
|
|
}
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_disc_set_adisc(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp)
|
|
{
|
|
/* Check config parameter use-adisc or FCP-2 */
|
|
if ((phba->cfg_use_adisc == 0) &&
|
|
!(phba->fc_flag & FC_RSCN_MODE)) {
|
|
if (!(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE))
|
|
return 0;
|
|
}
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag |= NLP_NPR_ADISC;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return 1;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_disc_illegal(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_DISCOVERY,
|
|
"%d:0253 Illegal State Transition: node x%x event x%x, "
|
|
"state x%x Data: x%x x%x\n",
|
|
phba->brd_no,
|
|
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
|
|
lpfc_rcv_plogi_unused_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
|
|
ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
|
|
ndlp->nlp_state = NLP_STE_UNUSED_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
|
|
return ndlp->nlp_state;
|
|
}
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_els_unused_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
lpfc_issue_els_logo(phba, ndlp, 0);
|
|
lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_logo_unused_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag |= NLP_LOGO_ACC;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
|
|
lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
|
|
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_cmpl_logo_unused_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_rm_unused_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_plogi_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
|
|
void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb = arg;
|
|
struct lpfc_dmabuf *pcmd;
|
|
struct serv_parm *sp;
|
|
uint32_t *lp;
|
|
struct ls_rjt stat;
|
|
int port_cmp;
|
|
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
lp = (uint32_t *) pcmd->virt;
|
|
sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
|
|
|
|
memset(&stat, 0, sizeof (struct ls_rjt));
|
|
|
|
/* For a PLOGI, we only accept if our portname is less
|
|
* than the remote portname.
|
|
*/
|
|
phba->fc_stat.elsLogiCol++;
|
|
port_cmp = memcmp(&phba->fc_portname, &sp->portName,
|
|
sizeof (struct lpfc_name));
|
|
|
|
if (port_cmp >= 0) {
|
|
/* Reject this request because the remote node will accept
|
|
ours */
|
|
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
|
|
lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
|
|
} else {
|
|
lpfc_rcv_plogi(phba, ndlp, cmdiocb);
|
|
} /* if our portname was less */
|
|
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_logo_plogi_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
/* software abort outstanding PLOGI */
|
|
lpfc_els_abort(phba, ndlp, 1);
|
|
|
|
lpfc_rcv_logo(phba, ndlp, cmdiocb, ELS_CMD_LOGO);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_els_plogi_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
/* software abort outstanding PLOGI */
|
|
lpfc_els_abort(phba, ndlp, 1);
|
|
|
|
if (evt == NLP_EVT_RCV_LOGO) {
|
|
lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
|
|
} else {
|
|
lpfc_issue_els_logo(phba, ndlp, 0);
|
|
}
|
|
|
|
/* Put ndlp in npr list set plogi timer for 1 sec */
|
|
mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag |= NLP_DELAY_TMO;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
|
|
ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_cmpl_plogi_plogi_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb, *rspiocb;
|
|
struct lpfc_dmabuf *pcmd, *prsp;
|
|
uint32_t *lp;
|
|
IOCB_t *irsp;
|
|
struct serv_parm *sp;
|
|
LPFC_MBOXQ_t *mbox;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
rspiocb = cmdiocb->context_un.rsp_iocb;
|
|
|
|
if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
|
|
/* Recovery from PLOGI collision logic */
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
irsp = &rspiocb->iocb;
|
|
|
|
if (irsp->ulpStatus)
|
|
goto out;
|
|
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
|
|
prsp = list_get_first(&pcmd->list,
|
|
struct lpfc_dmabuf,
|
|
list);
|
|
lp = (uint32_t *) prsp->virt;
|
|
|
|
sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
|
|
if (!lpfc_check_sparm(phba, ndlp, sp, CLASS3))
|
|
goto out;
|
|
|
|
/* PLOGI chkparm OK */
|
|
lpfc_printf_log(phba,
|
|
KERN_INFO,
|
|
LOG_ELS,
|
|
"%d:0121 PLOGI chkparm OK "
|
|
"Data: x%x x%x x%x x%x\n",
|
|
phba->brd_no,
|
|
ndlp->nlp_DID, ndlp->nlp_state,
|
|
ndlp->nlp_flag, ndlp->nlp_rpi);
|
|
|
|
if ((phba->cfg_fcp_class == 2) &&
|
|
(sp->cls2.classValid)) {
|
|
ndlp->nlp_fcp_info |= CLASS2;
|
|
} else {
|
|
ndlp->nlp_fcp_info |= CLASS3;
|
|
}
|
|
ndlp->nlp_class_sup = 0;
|
|
if (sp->cls1.classValid)
|
|
ndlp->nlp_class_sup |= FC_COS_CLASS1;
|
|
if (sp->cls2.classValid)
|
|
ndlp->nlp_class_sup |= FC_COS_CLASS2;
|
|
if (sp->cls3.classValid)
|
|
ndlp->nlp_class_sup |= FC_COS_CLASS3;
|
|
if (sp->cls4.classValid)
|
|
ndlp->nlp_class_sup |= FC_COS_CLASS4;
|
|
ndlp->nlp_maxframe =
|
|
((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
|
|
sp->cmn.bbRcvSizeLsb;
|
|
|
|
if (!(mbox = mempool_alloc(phba->mbox_mem_pool,
|
|
GFP_KERNEL)))
|
|
goto out;
|
|
|
|
lpfc_unreg_rpi(phba, ndlp);
|
|
if (lpfc_reg_login
|
|
(phba, irsp->un.elsreq64.remoteID,
|
|
(uint8_t *) sp, mbox, 0) == 0) {
|
|
switch (ndlp->nlp_DID) {
|
|
case NameServer_DID:
|
|
mbox->mbox_cmpl =
|
|
lpfc_mbx_cmpl_ns_reg_login;
|
|
break;
|
|
case FDMI_DID:
|
|
mbox->mbox_cmpl =
|
|
lpfc_mbx_cmpl_fdmi_reg_login;
|
|
break;
|
|
default:
|
|
mbox->mbox_cmpl =
|
|
lpfc_mbx_cmpl_reg_login;
|
|
}
|
|
mbox->context2 = ndlp;
|
|
if (lpfc_sli_issue_mbox(phba, mbox,
|
|
(MBX_NOWAIT | MBX_STOP_IOCB))
|
|
!= MBX_NOT_FINISHED) {
|
|
ndlp->nlp_state =
|
|
NLP_STE_REG_LOGIN_ISSUE;
|
|
lpfc_nlp_list(phba, ndlp,
|
|
NLP_REGLOGIN_LIST);
|
|
return ndlp->nlp_state;
|
|
}
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
} else {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
|
|
|
|
out:
|
|
/* Free this node since the driver cannot login or has the wrong
|
|
sparm */
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_rm_plogi_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
if(ndlp->nlp_flag & NLP_NPR_2B_DISC) {
|
|
ndlp->nlp_flag |= NLP_NODEV_REMOVE;
|
|
return ndlp->nlp_state;
|
|
}
|
|
else {
|
|
/* software abort outstanding PLOGI */
|
|
lpfc_els_abort(phba, ndlp, 1);
|
|
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_recov_plogi_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
/* software abort outstanding PLOGI */
|
|
lpfc_els_abort(phba, ndlp, 1);
|
|
|
|
ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_plogi_adisc_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
/* software abort outstanding ADISC */
|
|
lpfc_els_abort(phba, ndlp, 1);
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
|
|
return ndlp->nlp_state;
|
|
}
|
|
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
|
|
lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
|
|
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prli_adisc_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_logo_adisc_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
/* software abort outstanding ADISC */
|
|
lpfc_els_abort(phba, ndlp, 0);
|
|
|
|
lpfc_rcv_logo(phba, ndlp, cmdiocb, ELS_CMD_LOGO);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_padisc_adisc_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_padisc(phba, ndlp, cmdiocb);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prlo_adisc_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
/* Treat like rcv logo */
|
|
lpfc_rcv_logo(phba, ndlp, cmdiocb, ELS_CMD_PRLO);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_cmpl_adisc_adisc_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb, *rspiocb;
|
|
IOCB_t *irsp;
|
|
ADISC *ap;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
rspiocb = cmdiocb->context_un.rsp_iocb;
|
|
|
|
ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
|
|
irsp = &rspiocb->iocb;
|
|
|
|
if ((irsp->ulpStatus) ||
|
|
(!lpfc_check_adisc(phba, ndlp, &ap->nodeName, &ap->portName))) {
|
|
/* 1 sec timeout */
|
|
mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag |= NLP_DELAY_TMO;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
|
|
|
|
memset(&ndlp->nlp_nodename, 0, sizeof (struct lpfc_name));
|
|
memset(&ndlp->nlp_portname, 0, sizeof (struct lpfc_name));
|
|
|
|
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
lpfc_unreg_rpi(phba, ndlp);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
if (ndlp->nlp_type & NLP_FCP_TARGET) {
|
|
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_MAPPED_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
|
|
} else {
|
|
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
|
|
}
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_rm_adisc_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
if(ndlp->nlp_flag & NLP_NPR_2B_DISC) {
|
|
ndlp->nlp_flag |= NLP_NODEV_REMOVE;
|
|
return ndlp->nlp_state;
|
|
}
|
|
else {
|
|
/* software abort outstanding ADISC */
|
|
lpfc_els_abort(phba, ndlp, 1);
|
|
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_recov_adisc_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
/* software abort outstanding ADISC */
|
|
lpfc_els_abort(phba, ndlp, 1);
|
|
|
|
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
|
|
ndlp->nlp_flag |= NLP_NPR_ADISC;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_plogi_reglogin_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_plogi(phba, ndlp, cmdiocb);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prli_reglogin_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_logo_reglogin_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_logo(phba, ndlp, cmdiocb, ELS_CMD_LOGO);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_padisc_reglogin_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_padisc(phba, ndlp, cmdiocb);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prlo_reglogin_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
lpfc_els_rsp_acc(phba, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp,
|
|
void *arg, uint32_t evt)
|
|
{
|
|
LPFC_MBOXQ_t *pmb;
|
|
MAILBOX_t *mb;
|
|
uint32_t did;
|
|
|
|
pmb = (LPFC_MBOXQ_t *) arg;
|
|
mb = &pmb->mb;
|
|
did = mb->un.varWords[1];
|
|
if (mb->mbxStatus) {
|
|
/* RegLogin failed */
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_DISCOVERY,
|
|
"%d:0246 RegLogin failed Data: x%x x%x x%x\n",
|
|
phba->brd_no,
|
|
did, mb->mbxStatus, phba->hba_state);
|
|
|
|
/*
|
|
* If RegLogin failed due to lack of HBA resources do not
|
|
* retry discovery.
|
|
*/
|
|
if (mb->mbxStatus == MBXERR_RPI_FULL) {
|
|
ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
|
|
ndlp->nlp_state = NLP_STE_UNUSED_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
/* Put ndlp in npr list set plogi timer for 1 sec */
|
|
mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag |= NLP_DELAY_TMO;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
|
|
|
|
lpfc_issue_els_logo(phba, ndlp, 0);
|
|
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
ndlp->nlp_rpi = mb->un.varWords[0];
|
|
|
|
/* Only if we are not a fabric nport do we issue PRLI */
|
|
if (!(ndlp->nlp_type & NLP_FABRIC)) {
|
|
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
|
|
lpfc_issue_els_prli(phba, ndlp, 0);
|
|
} else {
|
|
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
|
|
}
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_rm_reglogin_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
if(ndlp->nlp_flag & NLP_NPR_2B_DISC) {
|
|
ndlp->nlp_flag |= NLP_NODEV_REMOVE;
|
|
return ndlp->nlp_state;
|
|
}
|
|
else {
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_recov_reglogin_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_plogi_prli_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_plogi(phba, ndlp, cmdiocb);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prli_prli_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_logo_prli_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
/* Software abort outstanding PRLI before sending acc */
|
|
lpfc_els_abort(phba, ndlp, 1);
|
|
|
|
lpfc_rcv_logo(phba, ndlp, cmdiocb, ELS_CMD_LOGO);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_padisc_prli_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_padisc(phba, ndlp, cmdiocb);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
/* This routine is envoked when we rcv a PRLO request from a nport
|
|
* we are logged into. We should send back a PRLO rsp setting the
|
|
* appropriate bits.
|
|
* NEXT STATE = PRLI_ISSUE
|
|
*/
|
|
static uint32_t
|
|
lpfc_rcv_prlo_prli_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
lpfc_els_rsp_acc(phba, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_cmpl_prli_prli_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb, *rspiocb;
|
|
IOCB_t *irsp;
|
|
PRLI *npr;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
rspiocb = cmdiocb->context_un.rsp_iocb;
|
|
npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
|
|
|
|
irsp = &rspiocb->iocb;
|
|
if (irsp->ulpStatus) {
|
|
ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
/* Check out PRLI rsp */
|
|
ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
|
|
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
|
|
if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
|
|
(npr->prliType == PRLI_FCP_TYPE)) {
|
|
if (npr->initiatorFunc)
|
|
ndlp->nlp_type |= NLP_FCP_INITIATOR;
|
|
if (npr->targetFunc)
|
|
ndlp->nlp_type |= NLP_FCP_TARGET;
|
|
if (npr->Retry)
|
|
ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
|
|
}
|
|
|
|
ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_MAPPED_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
/*! lpfc_device_rm_prli_issue
|
|
*
|
|
* \pre
|
|
* \post
|
|
* \param phba
|
|
* \param ndlp
|
|
* \param arg
|
|
* \param evt
|
|
* \return uint32_t
|
|
*
|
|
* \b Description:
|
|
* This routine is envoked when we a request to remove a nport we are in the
|
|
* process of PRLIing. We should software abort outstanding prli, unreg
|
|
* login, send a logout. We will change node state to UNUSED_NODE, put it
|
|
* on plogi list so it can be freed when LOGO completes.
|
|
*
|
|
*/
|
|
static uint32_t
|
|
lpfc_device_rm_prli_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
if(ndlp->nlp_flag & NLP_NPR_2B_DISC) {
|
|
ndlp->nlp_flag |= NLP_NODEV_REMOVE;
|
|
return ndlp->nlp_state;
|
|
}
|
|
else {
|
|
/* software abort outstanding PLOGI */
|
|
lpfc_els_abort(phba, ndlp, 1);
|
|
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
}
|
|
|
|
|
|
/*! lpfc_device_recov_prli_issue
|
|
*
|
|
* \pre
|
|
* \post
|
|
* \param phba
|
|
* \param ndlp
|
|
* \param arg
|
|
* \param evt
|
|
* \return uint32_t
|
|
*
|
|
* \b Description:
|
|
* The routine is envoked when the state of a device is unknown, like
|
|
* during a link down. We should remove the nodelist entry from the
|
|
* unmapped list, issue a UNREG_LOGIN, do a software abort of the
|
|
* outstanding PRLI command, then free the node entry.
|
|
*/
|
|
static uint32_t
|
|
lpfc_device_recov_prli_issue(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
/* software abort outstanding PRLI */
|
|
lpfc_els_abort(phba, ndlp, 1);
|
|
|
|
ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_plogi_unmap_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_plogi(phba, ndlp, cmdiocb);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prli_unmap_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_prli(phba, ndlp, cmdiocb);
|
|
lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_logo_unmap_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_logo(phba, ndlp, cmdiocb, ELS_CMD_LOGO);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_padisc_unmap_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_padisc(phba, ndlp, cmdiocb);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prlo_unmap_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_els_rsp_acc(phba, ELS_CMD_PRLO, cmdiocb, ndlp, NULL, 0);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_recov_unmap_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
|
|
lpfc_disc_set_adisc(phba, ndlp);
|
|
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_plogi_mapped_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_plogi(phba, ndlp, cmdiocb);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prli_mapped_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_logo_mapped_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_logo(phba, ndlp, cmdiocb, ELS_CMD_LOGO);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_padisc_mapped_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_padisc(phba, ndlp, cmdiocb);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prlo_mapped_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
/* flush the target */
|
|
spin_lock_irq(phba->host->host_lock);
|
|
lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
|
|
ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
/* Treat like rcv logo */
|
|
lpfc_rcv_logo(phba, ndlp, cmdiocb, ELS_CMD_PRLO);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_recov_mapped_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
|
|
ndlp->nlp_state = NLP_STE_NPR_NODE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
lpfc_disc_set_adisc(phba, ndlp);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_plogi_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
/* Ignore PLOGI if we have an outstanding LOGO */
|
|
if (ndlp->nlp_flag & NLP_LOGO_SND) {
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
/* send PLOGI immediately, move to PLOGI issue state */
|
|
if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
|
|
ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
|
|
ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
|
|
lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
|
|
}
|
|
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prli_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
struct ls_rjt stat;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
memset(&stat, 0, sizeof (struct ls_rjt));
|
|
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
|
|
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
|
|
lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
|
|
|
|
if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
|
|
if (ndlp->nlp_flag & NLP_NPR_ADISC) {
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
|
|
ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
|
|
lpfc_issue_els_adisc(phba, ndlp, 0);
|
|
} else {
|
|
ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
|
|
ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
|
|
lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
|
|
}
|
|
|
|
}
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_logo_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_logo(phba, ndlp, cmdiocb, ELS_CMD_LOGO);
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
lpfc_rcv_padisc(phba, ndlp, cmdiocb);
|
|
|
|
/*
|
|
* Do not start discovery if discovery is about to start
|
|
* or discovery in progress for this node. Starting discovery
|
|
* here will affect the counting of discovery threads.
|
|
*/
|
|
if ((!(ndlp->nlp_flag & NLP_DELAY_TMO)) &&
|
|
(ndlp->nlp_flag & NLP_NPR_2B_DISC)){
|
|
if (ndlp->nlp_flag & NLP_NPR_ADISC) {
|
|
ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
|
|
ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
|
|
lpfc_issue_els_adisc(phba, ndlp, 0);
|
|
} else {
|
|
ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
|
|
ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
|
|
lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
|
|
lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
|
|
}
|
|
}
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_rcv_prlo_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag |= NLP_LOGO_ACC;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
|
|
|
|
if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
|
|
mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag |= NLP_DELAY_TMO;
|
|
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
|
|
} else {
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
}
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_cmpl_plogi_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb, *rspiocb;
|
|
IOCB_t *irsp;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
rspiocb = cmdiocb->context_un.rsp_iocb;
|
|
|
|
irsp = &rspiocb->iocb;
|
|
if (irsp->ulpStatus) {
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_cmpl_prli_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb, *rspiocb;
|
|
IOCB_t *irsp;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
rspiocb = cmdiocb->context_un.rsp_iocb;
|
|
|
|
irsp = &rspiocb->iocb;
|
|
if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_cmpl_logo_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
lpfc_unreg_rpi(phba, ndlp);
|
|
/* This routine does nothing, just return the current state */
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_cmpl_adisc_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
struct lpfc_iocbq *cmdiocb, *rspiocb;
|
|
IOCB_t *irsp;
|
|
|
|
cmdiocb = (struct lpfc_iocbq *) arg;
|
|
rspiocb = cmdiocb->context_un.rsp_iocb;
|
|
|
|
irsp = &rspiocb->iocb;
|
|
if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_cmpl_reglogin_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
LPFC_MBOXQ_t *pmb;
|
|
MAILBOX_t *mb;
|
|
|
|
pmb = (LPFC_MBOXQ_t *) arg;
|
|
mb = &pmb->mb;
|
|
|
|
if (!mb->mbxStatus)
|
|
ndlp->nlp_rpi = mb->un.varWords[0];
|
|
else {
|
|
if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
}
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_rm_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
|
|
ndlp->nlp_flag |= NLP_NODEV_REMOVE;
|
|
return ndlp->nlp_state;
|
|
}
|
|
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
|
|
static uint32_t
|
|
lpfc_device_recov_npr_node(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg,
|
|
uint32_t evt)
|
|
{
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
if (ndlp->nlp_flag & NLP_DELAY_TMO) {
|
|
lpfc_cancel_retry_delay_tmo(phba, ndlp);
|
|
}
|
|
return ndlp->nlp_state;
|
|
}
|
|
|
|
|
|
/* This next section defines the NPort Discovery State Machine */
|
|
|
|
/* There are 4 different double linked lists nodelist entries can reside on.
|
|
* The plogi list and adisc list are used when Link Up discovery or RSCN
|
|
* processing is needed. Each list holds the nodes that we will send PLOGI
|
|
* or ADISC on. These lists will keep track of what nodes will be effected
|
|
* by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
|
|
* The unmapped_list will contain all nodes that we have successfully logged
|
|
* into at the Fibre Channel level. The mapped_list will contain all nodes
|
|
* that are mapped FCP targets.
|
|
*/
|
|
/*
|
|
* The bind list is a list of undiscovered (potentially non-existent) nodes
|
|
* that we have saved binding information on. This information is used when
|
|
* nodes transition from the unmapped to the mapped list.
|
|
*/
|
|
/* For UNUSED_NODE state, the node has just been allocated .
|
|
* For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
|
|
* the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
|
|
* and put on the unmapped list. For ADISC processing, the node is taken off
|
|
* the ADISC list and placed on either the mapped or unmapped list (depending
|
|
* on its previous state). Once on the unmapped list, a PRLI is issued and the
|
|
* state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
|
|
* changed to UNMAPPED_NODE. If the completion indicates a mapped
|
|
* node, the node is taken off the unmapped list. The binding list is checked
|
|
* for a valid binding, or a binding is automatically assigned. If binding
|
|
* assignment is unsuccessful, the node is left on the unmapped list. If
|
|
* binding assignment is successful, the associated binding list entry (if
|
|
* any) is removed, and the node is placed on the mapped list.
|
|
*/
|
|
/*
|
|
* For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
|
|
* lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
|
|
* expire, all effected nodes will receive a DEVICE_RM event.
|
|
*/
|
|
/*
|
|
* For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
|
|
* to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
|
|
* check, additional nodes may be added or removed (via DEVICE_RM) to / from
|
|
* the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
|
|
* we will first process the ADISC list. 32 entries are processed initially and
|
|
* ADISC is initited for each one. Completions / Events for each node are
|
|
* funnelled thru the state machine. As each node finishes ADISC processing, it
|
|
* starts ADISC for any nodes waiting for ADISC processing. If no nodes are
|
|
* waiting, and the ADISC list count is identically 0, then we are done. For
|
|
* Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
|
|
* can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
|
|
* list. 32 entries are processed initially and PLOGI is initited for each one.
|
|
* Completions / Events for each node are funnelled thru the state machine. As
|
|
* each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
|
|
* for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
|
|
* indentically 0, then we are done. We have now completed discovery / RSCN
|
|
* handling. Upon completion, ALL nodes should be on either the mapped or
|
|
* unmapped lists.
|
|
*/
|
|
|
|
static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
|
|
(struct lpfc_hba *, struct lpfc_nodelist *, void *, uint32_t) = {
|
|
/* Action routine Event Current State */
|
|
lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
|
|
lpfc_rcv_els_unused_node, /* RCV_PRLI */
|
|
lpfc_rcv_logo_unused_node, /* RCV_LOGO */
|
|
lpfc_rcv_els_unused_node, /* RCV_ADISC */
|
|
lpfc_rcv_els_unused_node, /* RCV_PDISC */
|
|
lpfc_rcv_els_unused_node, /* RCV_PRLO */
|
|
lpfc_disc_illegal, /* CMPL_PLOGI */
|
|
lpfc_disc_illegal, /* CMPL_PRLI */
|
|
lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
|
|
lpfc_disc_illegal, /* CMPL_ADISC */
|
|
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
|
|
lpfc_device_rm_unused_node, /* DEVICE_RM */
|
|
lpfc_disc_illegal, /* DEVICE_RECOVERY */
|
|
|
|
lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
|
|
lpfc_rcv_els_plogi_issue, /* RCV_PRLI */
|
|
lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
|
|
lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
|
|
lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
|
|
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_disc_illegal, /* CMPL_ADISC */
|
|
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
|
|
lpfc_device_rm_plogi_issue, /* DEVICE_RM */
|
|
lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
|
|
|
|
lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
|
|
lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
|
|
lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
|
|
lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
|
|
lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
|
|
lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
|
|
lpfc_disc_illegal, /* CMPL_PLOGI */
|
|
lpfc_disc_illegal, /* CMPL_PRLI */
|
|
lpfc_disc_illegal, /* CMPL_LOGO */
|
|
lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
|
|
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
|
|
lpfc_device_rm_adisc_issue, /* DEVICE_RM */
|
|
lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
|
|
|
|
lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
|
|
lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
|
|
lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
|
|
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_disc_illegal, /* CMPL_PRLI */
|
|
lpfc_disc_illegal, /* CMPL_LOGO */
|
|
lpfc_disc_illegal, /* CMPL_ADISC */
|
|
lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
|
|
lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
|
|
lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
|
|
|
|
lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
|
|
lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
|
|
lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
|
|
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_prli_prli_issue, /* CMPL_PRLI */
|
|
lpfc_disc_illegal, /* CMPL_LOGO */
|
|
lpfc_disc_illegal, /* CMPL_ADISC */
|
|
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
|
|
lpfc_device_rm_prli_issue, /* DEVICE_RM */
|
|
lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
|
|
|
|
lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
|
|
lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
|
|
lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
|
|
lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
|
|
lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
|
|
lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
|
|
lpfc_disc_illegal, /* CMPL_PLOGI */
|
|
lpfc_disc_illegal, /* CMPL_PRLI */
|
|
lpfc_disc_illegal, /* CMPL_LOGO */
|
|
lpfc_disc_illegal, /* CMPL_ADISC */
|
|
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
|
|
lpfc_disc_illegal, /* DEVICE_RM */
|
|
lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
|
|
|
|
lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
|
|
lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
|
|
lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
|
|
lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
|
|
lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
|
|
lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
|
|
lpfc_disc_illegal, /* CMPL_PLOGI */
|
|
lpfc_disc_illegal, /* CMPL_PRLI */
|
|
lpfc_disc_illegal, /* CMPL_LOGO */
|
|
lpfc_disc_illegal, /* CMPL_ADISC */
|
|
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
|
|
lpfc_disc_illegal, /* DEVICE_RM */
|
|
lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
|
|
|
|
lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
|
|
lpfc_rcv_prli_npr_node, /* RCV_PRLI */
|
|
lpfc_rcv_logo_npr_node, /* RCV_LOGO */
|
|
lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
|
|
lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
|
|
lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
|
|
lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
|
|
lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
|
|
lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
|
|
lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
|
|
lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
|
|
lpfc_device_rm_npr_node, /* DEVICE_RM */
|
|
lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
|
|
};
|
|
|
|
int
|
|
lpfc_disc_state_machine(struct lpfc_hba * phba,
|
|
struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
|
|
{
|
|
uint32_t cur_state, rc;
|
|
uint32_t(*func) (struct lpfc_hba *, struct lpfc_nodelist *, void *,
|
|
uint32_t);
|
|
|
|
ndlp->nlp_disc_refcnt++;
|
|
cur_state = ndlp->nlp_state;
|
|
|
|
/* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
|
|
lpfc_printf_log(phba,
|
|
KERN_INFO,
|
|
LOG_DISCOVERY,
|
|
"%d:0211 DSM in event x%x on NPort x%x in state %d "
|
|
"Data: x%x\n",
|
|
phba->brd_no,
|
|
evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
|
|
|
|
func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
|
|
rc = (func) (phba, ndlp, arg, evt);
|
|
|
|
/* DSM out state <rc> on NPort <nlp_DID> */
|
|
lpfc_printf_log(phba,
|
|
KERN_INFO,
|
|
LOG_DISCOVERY,
|
|
"%d:0212 DSM out state %d on NPort x%x Data: x%x\n",
|
|
phba->brd_no,
|
|
rc, ndlp->nlp_DID, ndlp->nlp_flag);
|
|
|
|
ndlp->nlp_disc_refcnt--;
|
|
|
|
/* Check to see if ndlp removal is deferred */
|
|
if ((ndlp->nlp_disc_refcnt == 0)
|
|
&& (ndlp->nlp_flag & NLP_DELAY_REMOVE)) {
|
|
spin_lock_irq(phba->host->host_lock);
|
|
ndlp->nlp_flag &= ~NLP_DELAY_REMOVE;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
lpfc_nlp_remove(phba, ndlp);
|
|
return NLP_STE_FREED_NODE;
|
|
}
|
|
if (rc == NLP_STE_FREED_NODE)
|
|
return NLP_STE_FREED_NODE;
|
|
return rc;
|
|
}
|