forked from Minki/linux
5b8bd0c9be
Improve diagnostic messages and change local loopback message to KERN_INFO Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
3258 lines
83 KiB
C
3258 lines
83 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 <linux/delay.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_cmnd.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_crtn.h"
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#include "lpfc_logmsg.h"
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#include "lpfc_compat.h"
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/*
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* Define macro to log: Mailbox command x%x cannot issue Data
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* This allows multiple uses of lpfc_msgBlk0311
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* w/o perturbing log msg utility.
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*/
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#define LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) \
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lpfc_printf_log(phba, \
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KERN_INFO, \
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LOG_MBOX | LOG_SLI, \
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"%d:0311 Mailbox command x%x cannot issue " \
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"Data: x%x x%x x%x\n", \
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phba->brd_no, \
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mb->mbxCommand, \
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phba->hba_state, \
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psli->sli_flag, \
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flag);
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/* There are only four IOCB completion types. */
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typedef enum _lpfc_iocb_type {
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LPFC_UNKNOWN_IOCB,
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LPFC_UNSOL_IOCB,
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LPFC_SOL_IOCB,
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LPFC_ABORT_IOCB
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} lpfc_iocb_type;
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struct lpfc_iocbq *
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lpfc_sli_get_iocbq(struct lpfc_hba * phba)
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{
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struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
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struct lpfc_iocbq * iocbq = NULL;
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list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
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return iocbq;
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}
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void
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lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
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{
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size_t start_clean = (size_t)(&((struct lpfc_iocbq *)NULL)->iocb);
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/*
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* Clean all volatile data fields, preserve iotag and node struct.
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*/
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memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
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list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
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}
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/*
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* Translate the iocb command to an iocb command type used to decide the final
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* disposition of each completed IOCB.
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*/
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static lpfc_iocb_type
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lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
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{
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lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
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if (iocb_cmnd > CMD_MAX_IOCB_CMD)
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return 0;
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switch (iocb_cmnd) {
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case CMD_XMIT_SEQUENCE_CR:
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case CMD_XMIT_SEQUENCE_CX:
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case CMD_XMIT_BCAST_CN:
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case CMD_XMIT_BCAST_CX:
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case CMD_ELS_REQUEST_CR:
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case CMD_ELS_REQUEST_CX:
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case CMD_CREATE_XRI_CR:
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case CMD_CREATE_XRI_CX:
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case CMD_GET_RPI_CN:
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case CMD_XMIT_ELS_RSP_CX:
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case CMD_GET_RPI_CR:
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case CMD_FCP_IWRITE_CR:
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case CMD_FCP_IWRITE_CX:
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case CMD_FCP_IREAD_CR:
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case CMD_FCP_IREAD_CX:
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case CMD_FCP_ICMND_CR:
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case CMD_FCP_ICMND_CX:
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case CMD_FCP_TSEND_CX:
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case CMD_FCP_TRSP_CX:
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case CMD_FCP_TRECEIVE_CX:
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case CMD_FCP_AUTO_TRSP_CX:
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case CMD_ADAPTER_MSG:
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case CMD_ADAPTER_DUMP:
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case CMD_XMIT_SEQUENCE64_CR:
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case CMD_XMIT_SEQUENCE64_CX:
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case CMD_XMIT_BCAST64_CN:
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case CMD_XMIT_BCAST64_CX:
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case CMD_ELS_REQUEST64_CR:
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case CMD_ELS_REQUEST64_CX:
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case CMD_FCP_IWRITE64_CR:
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case CMD_FCP_IWRITE64_CX:
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case CMD_FCP_IREAD64_CR:
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case CMD_FCP_IREAD64_CX:
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case CMD_FCP_ICMND64_CR:
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case CMD_FCP_ICMND64_CX:
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case CMD_FCP_TSEND64_CX:
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case CMD_FCP_TRSP64_CX:
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case CMD_FCP_TRECEIVE64_CX:
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case CMD_GEN_REQUEST64_CR:
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case CMD_GEN_REQUEST64_CX:
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case CMD_XMIT_ELS_RSP64_CX:
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type = LPFC_SOL_IOCB;
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break;
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case CMD_ABORT_XRI_CN:
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case CMD_ABORT_XRI_CX:
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case CMD_CLOSE_XRI_CN:
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case CMD_CLOSE_XRI_CX:
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case CMD_XRI_ABORTED_CX:
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case CMD_ABORT_MXRI64_CN:
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type = LPFC_ABORT_IOCB;
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break;
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case CMD_RCV_SEQUENCE_CX:
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case CMD_RCV_ELS_REQ_CX:
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case CMD_RCV_SEQUENCE64_CX:
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case CMD_RCV_ELS_REQ64_CX:
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type = LPFC_UNSOL_IOCB;
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break;
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default:
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type = LPFC_UNKNOWN_IOCB;
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break;
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}
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return type;
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}
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static int
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lpfc_sli_ring_map(struct lpfc_hba * phba, LPFC_MBOXQ_t *pmb)
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{
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struct lpfc_sli *psli = &phba->sli;
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MAILBOX_t *pmbox = &pmb->mb;
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int i, rc;
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for (i = 0; i < psli->num_rings; i++) {
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phba->hba_state = LPFC_INIT_MBX_CMDS;
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lpfc_config_ring(phba, i, pmb);
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rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
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if (rc != MBX_SUCCESS) {
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lpfc_printf_log(phba,
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KERN_ERR,
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LOG_INIT,
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"%d:0446 Adapter failed to init, "
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"mbxCmd x%x CFG_RING, mbxStatus x%x, "
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"ring %d\n",
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phba->brd_no,
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pmbox->mbxCommand,
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pmbox->mbxStatus,
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i);
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phba->hba_state = LPFC_HBA_ERROR;
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return -ENXIO;
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}
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}
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return 0;
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}
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static int
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lpfc_sli_ringtxcmpl_put(struct lpfc_hba * phba,
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struct lpfc_sli_ring * pring, struct lpfc_iocbq * piocb)
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{
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list_add_tail(&piocb->list, &pring->txcmplq);
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pring->txcmplq_cnt++;
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if (unlikely(pring->ringno == LPFC_ELS_RING))
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mod_timer(&phba->els_tmofunc,
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jiffies + HZ * (phba->fc_ratov << 1));
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return (0);
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}
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static struct lpfc_iocbq *
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lpfc_sli_ringtx_get(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
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{
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struct list_head *dlp;
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struct lpfc_iocbq *cmd_iocb;
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dlp = &pring->txq;
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cmd_iocb = NULL;
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list_remove_head((&pring->txq), cmd_iocb,
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struct lpfc_iocbq,
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list);
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if (cmd_iocb) {
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/* If the first ptr is not equal to the list header,
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* deque the IOCBQ_t and return it.
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*/
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pring->txq_cnt--;
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}
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return (cmd_iocb);
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}
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static IOCB_t *
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lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
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{
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struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
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uint32_t max_cmd_idx = pring->numCiocb;
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IOCB_t *iocb = NULL;
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if ((pring->next_cmdidx == pring->cmdidx) &&
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(++pring->next_cmdidx >= max_cmd_idx))
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pring->next_cmdidx = 0;
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if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
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pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
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if (unlikely(pring->local_getidx >= max_cmd_idx)) {
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lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
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"%d:0315 Ring %d issue: portCmdGet %d "
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"is bigger then cmd ring %d\n",
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phba->brd_no, pring->ringno,
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pring->local_getidx, max_cmd_idx);
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phba->hba_state = LPFC_HBA_ERROR;
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/*
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* All error attention handlers are posted to
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* worker thread
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*/
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phba->work_ha |= HA_ERATT;
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phba->work_hs = HS_FFER3;
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if (phba->work_wait)
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wake_up(phba->work_wait);
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return NULL;
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}
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if (pring->local_getidx == pring->next_cmdidx)
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return NULL;
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}
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iocb = IOCB_ENTRY(pring->cmdringaddr, pring->cmdidx);
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return iocb;
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}
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uint16_t
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lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
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{
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struct lpfc_iocbq ** new_arr;
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struct lpfc_iocbq ** old_arr;
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size_t new_len;
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struct lpfc_sli *psli = &phba->sli;
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uint16_t iotag;
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spin_lock_irq(phba->host->host_lock);
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iotag = psli->last_iotag;
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if(++iotag < psli->iocbq_lookup_len) {
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psli->last_iotag = iotag;
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psli->iocbq_lookup[iotag] = iocbq;
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spin_unlock_irq(phba->host->host_lock);
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iocbq->iotag = iotag;
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return iotag;
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}
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else if (psli->iocbq_lookup_len < (0xffff
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- LPFC_IOCBQ_LOOKUP_INCREMENT)) {
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new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
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spin_unlock_irq(phba->host->host_lock);
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new_arr = kmalloc(new_len * sizeof (struct lpfc_iocbq *),
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GFP_KERNEL);
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if (new_arr) {
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memset((char *)new_arr, 0,
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new_len * sizeof (struct lpfc_iocbq *));
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spin_lock_irq(phba->host->host_lock);
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old_arr = psli->iocbq_lookup;
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if (new_len <= psli->iocbq_lookup_len) {
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/* highly unprobable case */
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kfree(new_arr);
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iotag = psli->last_iotag;
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if(++iotag < psli->iocbq_lookup_len) {
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psli->last_iotag = iotag;
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psli->iocbq_lookup[iotag] = iocbq;
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spin_unlock_irq(phba->host->host_lock);
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iocbq->iotag = iotag;
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return iotag;
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}
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spin_unlock_irq(phba->host->host_lock);
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return 0;
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}
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if (psli->iocbq_lookup)
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memcpy(new_arr, old_arr,
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((psli->last_iotag + 1) *
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sizeof (struct lpfc_iocbq *)));
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psli->iocbq_lookup = new_arr;
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psli->iocbq_lookup_len = new_len;
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psli->last_iotag = iotag;
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psli->iocbq_lookup[iotag] = iocbq;
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spin_unlock_irq(phba->host->host_lock);
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iocbq->iotag = iotag;
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kfree(old_arr);
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return iotag;
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}
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} else
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spin_unlock_irq(phba->host->host_lock);
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lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
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"%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n",
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phba->brd_no, psli->last_iotag);
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return 0;
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}
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static void
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lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
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IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
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{
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/*
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* Set up an iotag
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*/
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nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
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/*
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* Issue iocb command to adapter
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*/
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lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, sizeof (IOCB_t));
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wmb();
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pring->stats.iocb_cmd++;
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/*
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* If there is no completion routine to call, we can release the
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* IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
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* that have no rsp ring completion, iocb_cmpl MUST be NULL.
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*/
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if (nextiocb->iocb_cmpl)
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lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
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else
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lpfc_sli_release_iocbq(phba, nextiocb);
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/*
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* Let the HBA know what IOCB slot will be the next one the
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* driver will put a command into.
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*/
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pring->cmdidx = pring->next_cmdidx;
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writel(pring->cmdidx, phba->MBslimaddr
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+ (SLIMOFF + (pring->ringno * 2)) * 4);
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}
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static void
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lpfc_sli_update_full_ring(struct lpfc_hba * phba,
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struct lpfc_sli_ring *pring)
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{
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int ringno = pring->ringno;
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pring->flag |= LPFC_CALL_RING_AVAILABLE;
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wmb();
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/*
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* Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
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* The HBA will tell us when an IOCB entry is available.
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*/
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writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
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readl(phba->CAregaddr); /* flush */
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pring->stats.iocb_cmd_full++;
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}
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static void
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lpfc_sli_update_ring(struct lpfc_hba * phba,
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struct lpfc_sli_ring *pring)
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{
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int ringno = pring->ringno;
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/*
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* Tell the HBA that there is work to do in this ring.
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*/
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wmb();
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writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
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readl(phba->CAregaddr); /* flush */
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}
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static void
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lpfc_sli_resume_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
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{
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IOCB_t *iocb;
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struct lpfc_iocbq *nextiocb;
|
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|
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/*
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* Check to see if:
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* (a) there is anything on the txq to send
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* (b) link is up
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* (c) link attention events can be processed (fcp ring only)
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* (d) IOCB processing is not blocked by the outstanding mbox command.
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*/
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if (pring->txq_cnt &&
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(phba->hba_state > LPFC_LINK_DOWN) &&
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(pring->ringno != phba->sli.fcp_ring ||
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phba->sli.sli_flag & LPFC_PROCESS_LA) &&
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!(pring->flag & LPFC_STOP_IOCB_MBX)) {
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while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
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(nextiocb = lpfc_sli_ringtx_get(phba, pring)))
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lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
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if (iocb)
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lpfc_sli_update_ring(phba, pring);
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else
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lpfc_sli_update_full_ring(phba, pring);
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}
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return;
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}
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|
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/* lpfc_sli_turn_on_ring is only called by lpfc_sli_handle_mb_event below */
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static void
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lpfc_sli_turn_on_ring(struct lpfc_hba * phba, int ringno)
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{
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struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[ringno];
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|
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/* If the ring is active, flag it */
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if (phba->sli.ring[ringno].cmdringaddr) {
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if (phba->sli.ring[ringno].flag & LPFC_STOP_IOCB_MBX) {
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phba->sli.ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX;
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/*
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* Force update of the local copy of cmdGetInx
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|
*/
|
|
phba->sli.ring[ringno].local_getidx
|
|
= le32_to_cpu(pgp->cmdGetInx);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
|
|
{
|
|
uint8_t ret;
|
|
|
|
switch (mbxCommand) {
|
|
case MBX_LOAD_SM:
|
|
case MBX_READ_NV:
|
|
case MBX_WRITE_NV:
|
|
case MBX_RUN_BIU_DIAG:
|
|
case MBX_INIT_LINK:
|
|
case MBX_DOWN_LINK:
|
|
case MBX_CONFIG_LINK:
|
|
case MBX_CONFIG_RING:
|
|
case MBX_RESET_RING:
|
|
case MBX_READ_CONFIG:
|
|
case MBX_READ_RCONFIG:
|
|
case MBX_READ_SPARM:
|
|
case MBX_READ_STATUS:
|
|
case MBX_READ_RPI:
|
|
case MBX_READ_XRI:
|
|
case MBX_READ_REV:
|
|
case MBX_READ_LNK_STAT:
|
|
case MBX_REG_LOGIN:
|
|
case MBX_UNREG_LOGIN:
|
|
case MBX_READ_LA:
|
|
case MBX_CLEAR_LA:
|
|
case MBX_DUMP_MEMORY:
|
|
case MBX_DUMP_CONTEXT:
|
|
case MBX_RUN_DIAGS:
|
|
case MBX_RESTART:
|
|
case MBX_UPDATE_CFG:
|
|
case MBX_DOWN_LOAD:
|
|
case MBX_DEL_LD_ENTRY:
|
|
case MBX_RUN_PROGRAM:
|
|
case MBX_SET_MASK:
|
|
case MBX_SET_SLIM:
|
|
case MBX_UNREG_D_ID:
|
|
case MBX_KILL_BOARD:
|
|
case MBX_CONFIG_FARP:
|
|
case MBX_BEACON:
|
|
case MBX_LOAD_AREA:
|
|
case MBX_RUN_BIU_DIAG64:
|
|
case MBX_CONFIG_PORT:
|
|
case MBX_READ_SPARM64:
|
|
case MBX_READ_RPI64:
|
|
case MBX_REG_LOGIN64:
|
|
case MBX_READ_LA64:
|
|
case MBX_FLASH_WR_ULA:
|
|
case MBX_SET_DEBUG:
|
|
case MBX_LOAD_EXP_ROM:
|
|
ret = mbxCommand;
|
|
break;
|
|
default:
|
|
ret = MBX_SHUTDOWN;
|
|
break;
|
|
}
|
|
return (ret);
|
|
}
|
|
static void
|
|
lpfc_sli_wake_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
|
|
{
|
|
wait_queue_head_t *pdone_q;
|
|
|
|
/*
|
|
* If pdone_q is empty, the driver thread gave up waiting and
|
|
* continued running.
|
|
*/
|
|
pmboxq->mbox_flag |= LPFC_MBX_WAKE;
|
|
pdone_q = (wait_queue_head_t *) pmboxq->context1;
|
|
if (pdone_q)
|
|
wake_up_interruptible(pdone_q);
|
|
return;
|
|
}
|
|
|
|
void
|
|
lpfc_sli_def_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
|
|
{
|
|
struct lpfc_dmabuf *mp;
|
|
uint16_t rpi;
|
|
int rc;
|
|
|
|
mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
|
|
if (mp) {
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
|
|
/*
|
|
* If a REG_LOGIN succeeded after node is destroyed or node
|
|
* is in re-discovery driver need to cleanup the RPI.
|
|
*/
|
|
if (!(phba->fc_flag & FC_UNLOADING) &&
|
|
(pmb->mb.mbxCommand == MBX_REG_LOGIN64) &&
|
|
(!pmb->mb.mbxStatus)) {
|
|
|
|
rpi = pmb->mb.un.varWords[0];
|
|
lpfc_unreg_login(phba, rpi, pmb);
|
|
pmb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
|
|
if (rc != MBX_NOT_FINISHED)
|
|
return;
|
|
}
|
|
|
|
mempool_free( pmb, phba->mbox_mem_pool);
|
|
return;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_handle_mb_event(struct lpfc_hba * phba)
|
|
{
|
|
MAILBOX_t *mbox;
|
|
MAILBOX_t *pmbox;
|
|
LPFC_MBOXQ_t *pmb;
|
|
struct lpfc_sli *psli;
|
|
int i, rc;
|
|
uint32_t process_next;
|
|
|
|
psli = &phba->sli;
|
|
/* We should only get here if we are in SLI2 mode */
|
|
if (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE)) {
|
|
return (1);
|
|
}
|
|
|
|
phba->sli.slistat.mbox_event++;
|
|
|
|
/* Get a Mailbox buffer to setup mailbox commands for callback */
|
|
if ((pmb = phba->sli.mbox_active)) {
|
|
pmbox = &pmb->mb;
|
|
mbox = &phba->slim2p->mbx;
|
|
|
|
/* First check out the status word */
|
|
lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof (uint32_t));
|
|
|
|
/* Sanity check to ensure the host owns the mailbox */
|
|
if (pmbox->mbxOwner != OWN_HOST) {
|
|
/* Lets try for a while */
|
|
for (i = 0; i < 10240; i++) {
|
|
/* First copy command data */
|
|
lpfc_sli_pcimem_bcopy(mbox, pmbox,
|
|
sizeof (uint32_t));
|
|
if (pmbox->mbxOwner == OWN_HOST)
|
|
goto mbout;
|
|
}
|
|
/* Stray Mailbox Interrupt, mbxCommand <cmd> mbxStatus
|
|
<status> */
|
|
lpfc_printf_log(phba,
|
|
KERN_WARNING,
|
|
LOG_MBOX | LOG_SLI,
|
|
"%d:0304 Stray Mailbox Interrupt "
|
|
"mbxCommand x%x mbxStatus x%x\n",
|
|
phba->brd_no,
|
|
pmbox->mbxCommand,
|
|
pmbox->mbxStatus);
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return (1);
|
|
}
|
|
|
|
mbout:
|
|
del_timer_sync(&phba->sli.mbox_tmo);
|
|
phba->work_hba_events &= ~WORKER_MBOX_TMO;
|
|
|
|
/*
|
|
* It is a fatal error if unknown mbox command completion.
|
|
*/
|
|
if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
|
|
MBX_SHUTDOWN) {
|
|
|
|
/* Unknow mailbox command compl */
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_MBOX | LOG_SLI,
|
|
"%d:0323 Unknown Mailbox command %x Cmpl\n",
|
|
phba->brd_no,
|
|
pmbox->mbxCommand);
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
phba->work_hs = HS_FFER3;
|
|
lpfc_handle_eratt(phba);
|
|
return (0);
|
|
}
|
|
|
|
phba->sli.mbox_active = NULL;
|
|
if (pmbox->mbxStatus) {
|
|
phba->sli.slistat.mbox_stat_err++;
|
|
if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
|
|
/* Mbox cmd cmpl error - RETRYing */
|
|
lpfc_printf_log(phba,
|
|
KERN_INFO,
|
|
LOG_MBOX | LOG_SLI,
|
|
"%d:0305 Mbox cmd cmpl error - "
|
|
"RETRYing Data: x%x x%x x%x x%x\n",
|
|
phba->brd_no,
|
|
pmbox->mbxCommand,
|
|
pmbox->mbxStatus,
|
|
pmbox->un.varWords[0],
|
|
phba->hba_state);
|
|
pmbox->mbxStatus = 0;
|
|
pmbox->mbxOwner = OWN_HOST;
|
|
spin_lock_irq(phba->host->host_lock);
|
|
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
|
|
if (rc == MBX_SUCCESS)
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
/* Mailbox cmd <cmd> Cmpl <cmpl> */
|
|
lpfc_printf_log(phba,
|
|
KERN_INFO,
|
|
LOG_MBOX | LOG_SLI,
|
|
"%d:0307 Mailbox cmd x%x Cmpl x%p "
|
|
"Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
|
|
phba->brd_no,
|
|
pmbox->mbxCommand,
|
|
pmb->mbox_cmpl,
|
|
*((uint32_t *) pmbox),
|
|
pmbox->un.varWords[0],
|
|
pmbox->un.varWords[1],
|
|
pmbox->un.varWords[2],
|
|
pmbox->un.varWords[3],
|
|
pmbox->un.varWords[4],
|
|
pmbox->un.varWords[5],
|
|
pmbox->un.varWords[6],
|
|
pmbox->un.varWords[7]);
|
|
|
|
if (pmb->mbox_cmpl) {
|
|
lpfc_sli_pcimem_bcopy(mbox, pmbox, MAILBOX_CMD_SIZE);
|
|
pmb->mbox_cmpl(phba,pmb);
|
|
}
|
|
}
|
|
|
|
|
|
do {
|
|
process_next = 0; /* by default don't loop */
|
|
spin_lock_irq(phba->host->host_lock);
|
|
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
|
|
/* Process next mailbox command if there is one */
|
|
if ((pmb = lpfc_mbox_get(phba))) {
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
pmb->mb.mbxStatus = MBX_NOT_FINISHED;
|
|
pmb->mbox_cmpl(phba,pmb);
|
|
process_next = 1;
|
|
continue; /* loop back */
|
|
}
|
|
} else {
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
/* Turn on IOCB processing */
|
|
for (i = 0; i < phba->sli.num_rings; i++)
|
|
lpfc_sli_turn_on_ring(phba, i);
|
|
}
|
|
|
|
} while (process_next);
|
|
|
|
return (0);
|
|
}
|
|
static int
|
|
lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *saveq)
|
|
{
|
|
IOCB_t * irsp;
|
|
WORD5 * w5p;
|
|
uint32_t Rctl, Type;
|
|
uint32_t match, i;
|
|
|
|
match = 0;
|
|
irsp = &(saveq->iocb);
|
|
if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX)
|
|
|| (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)) {
|
|
Rctl = FC_ELS_REQ;
|
|
Type = FC_ELS_DATA;
|
|
} else {
|
|
w5p =
|
|
(WORD5 *) & (saveq->iocb.un.
|
|
ulpWord[5]);
|
|
Rctl = w5p->hcsw.Rctl;
|
|
Type = w5p->hcsw.Type;
|
|
|
|
/* Firmware Workaround */
|
|
if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
|
|
(irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX)) {
|
|
Rctl = FC_ELS_REQ;
|
|
Type = FC_ELS_DATA;
|
|
w5p->hcsw.Rctl = Rctl;
|
|
w5p->hcsw.Type = Type;
|
|
}
|
|
}
|
|
/* unSolicited Responses */
|
|
if (pring->prt[0].profile) {
|
|
if (pring->prt[0].lpfc_sli_rcv_unsol_event)
|
|
(pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
|
|
saveq);
|
|
match = 1;
|
|
} else {
|
|
/* We must search, based on rctl / type
|
|
for the right routine */
|
|
for (i = 0; i < pring->num_mask;
|
|
i++) {
|
|
if ((pring->prt[i].rctl ==
|
|
Rctl)
|
|
&& (pring->prt[i].
|
|
type == Type)) {
|
|
if (pring->prt[i].lpfc_sli_rcv_unsol_event)
|
|
(pring->prt[i].lpfc_sli_rcv_unsol_event)
|
|
(phba, pring, saveq);
|
|
match = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (match == 0) {
|
|
/* Unexpected Rctl / Type received */
|
|
/* Ring <ringno> handler: unexpected
|
|
Rctl <Rctl> Type <Type> received */
|
|
lpfc_printf_log(phba,
|
|
KERN_WARNING,
|
|
LOG_SLI,
|
|
"%d:0313 Ring %d handler: unexpected Rctl x%x "
|
|
"Type x%x received \n",
|
|
phba->brd_no,
|
|
pring->ringno,
|
|
Rctl,
|
|
Type);
|
|
}
|
|
return(1);
|
|
}
|
|
|
|
static struct lpfc_iocbq *
|
|
lpfc_sli_iocbq_lookup(struct lpfc_hba * phba,
|
|
struct lpfc_sli_ring * pring,
|
|
struct lpfc_iocbq * prspiocb)
|
|
{
|
|
struct lpfc_iocbq *cmd_iocb = NULL;
|
|
uint16_t iotag;
|
|
|
|
iotag = prspiocb->iocb.ulpIoTag;
|
|
|
|
if (iotag != 0 && iotag <= phba->sli.last_iotag) {
|
|
cmd_iocb = phba->sli.iocbq_lookup[iotag];
|
|
list_del(&cmd_iocb->list);
|
|
pring->txcmplq_cnt--;
|
|
return cmd_iocb;
|
|
}
|
|
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"%d:0317 iotag x%x is out off "
|
|
"range: max iotag x%x wd0 x%x\n",
|
|
phba->brd_no, iotag,
|
|
phba->sli.last_iotag,
|
|
*(((uint32_t *) &prspiocb->iocb) + 7));
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
|
|
struct lpfc_iocbq *saveq)
|
|
{
|
|
struct lpfc_iocbq * cmdiocbp;
|
|
int rc = 1;
|
|
unsigned long iflag;
|
|
|
|
/* Based on the iotag field, get the cmd IOCB from the txcmplq */
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
|
|
if (cmdiocbp) {
|
|
if (cmdiocbp->iocb_cmpl) {
|
|
/*
|
|
* Post all ELS completions to the worker thread.
|
|
* All other are passed to the completion callback.
|
|
*/
|
|
if (pring->ringno == LPFC_ELS_RING) {
|
|
if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) {
|
|
cmdiocbp->iocb_flag &=
|
|
~LPFC_DRIVER_ABORTED;
|
|
saveq->iocb.ulpStatus =
|
|
IOSTAT_LOCAL_REJECT;
|
|
saveq->iocb.un.ulpWord[4] =
|
|
IOERR_SLI_ABORTED;
|
|
}
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
iflag);
|
|
(cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
}
|
|
else {
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
iflag);
|
|
(cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
}
|
|
} else
|
|
lpfc_sli_release_iocbq(phba, cmdiocbp);
|
|
} else {
|
|
/*
|
|
* Unknown initiating command based on the response iotag.
|
|
* This could be the case on the ELS ring because of
|
|
* lpfc_els_abort().
|
|
*/
|
|
if (pring->ringno != LPFC_ELS_RING) {
|
|
/*
|
|
* Ring <ringno> handler: unexpected completion IoTag
|
|
* <IoTag>
|
|
*/
|
|
lpfc_printf_log(phba,
|
|
KERN_WARNING,
|
|
LOG_SLI,
|
|
"%d:0322 Ring %d handler: unexpected "
|
|
"completion IoTag x%x Data: x%x x%x x%x x%x\n",
|
|
phba->brd_no,
|
|
pring->ringno,
|
|
saveq->iocb.ulpIoTag,
|
|
saveq->iocb.ulpStatus,
|
|
saveq->iocb.un.ulpWord[4],
|
|
saveq->iocb.ulpCommand,
|
|
saveq->iocb.ulpContext);
|
|
}
|
|
}
|
|
|
|
spin_unlock_irqrestore(phba->host->host_lock, iflag);
|
|
return rc;
|
|
}
|
|
|
|
static void lpfc_sli_rsp_pointers_error(struct lpfc_hba * phba,
|
|
struct lpfc_sli_ring * pring)
|
|
{
|
|
struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
|
|
/*
|
|
* Ring <ringno> handler: portRspPut <portRspPut> is bigger then
|
|
* rsp ring <portRspMax>
|
|
*/
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"%d:0312 Ring %d handler: portRspPut %d "
|
|
"is bigger then rsp ring %d\n",
|
|
phba->brd_no, pring->ringno,
|
|
le32_to_cpu(pgp->rspPutInx),
|
|
pring->numRiocb);
|
|
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
|
|
/*
|
|
* All error attention handlers are posted to
|
|
* worker thread
|
|
*/
|
|
phba->work_ha |= HA_ERATT;
|
|
phba->work_hs = HS_FFER3;
|
|
if (phba->work_wait)
|
|
wake_up(phba->work_wait);
|
|
|
|
return;
|
|
}
|
|
|
|
void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba)
|
|
{
|
|
struct lpfc_sli * psli = &phba->sli;
|
|
struct lpfc_sli_ring * pring = &psli->ring[LPFC_FCP_RING];
|
|
IOCB_t *irsp = NULL;
|
|
IOCB_t *entry = NULL;
|
|
struct lpfc_iocbq *cmdiocbq = NULL;
|
|
struct lpfc_iocbq rspiocbq;
|
|
struct lpfc_pgp *pgp;
|
|
uint32_t status;
|
|
uint32_t portRspPut, portRspMax;
|
|
int type;
|
|
uint32_t rsp_cmpl = 0;
|
|
void __iomem *to_slim;
|
|
uint32_t ha_copy;
|
|
|
|
pring->stats.iocb_event++;
|
|
|
|
/* The driver assumes SLI-2 mode */
|
|
pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
|
|
|
|
/*
|
|
* The next available response entry should never exceed the maximum
|
|
* entries. If it does, treat it as an adapter hardware error.
|
|
*/
|
|
portRspMax = pring->numRiocb;
|
|
portRspPut = le32_to_cpu(pgp->rspPutInx);
|
|
if (unlikely(portRspPut >= portRspMax)) {
|
|
lpfc_sli_rsp_pointers_error(phba, pring);
|
|
return;
|
|
}
|
|
|
|
rmb();
|
|
while (pring->rspidx != portRspPut) {
|
|
|
|
entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
|
|
|
|
if (++pring->rspidx >= portRspMax)
|
|
pring->rspidx = 0;
|
|
|
|
lpfc_sli_pcimem_bcopy((uint32_t *) entry,
|
|
(uint32_t *) &rspiocbq.iocb,
|
|
sizeof (IOCB_t));
|
|
irsp = &rspiocbq.iocb;
|
|
type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
|
|
pring->stats.iocb_rsp++;
|
|
rsp_cmpl++;
|
|
|
|
if (unlikely(irsp->ulpStatus)) {
|
|
/* Rsp ring <ringno> error: IOCB */
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"%d:0326 Rsp Ring %d error: IOCB Data: "
|
|
"x%x x%x x%x x%x x%x x%x x%x x%x\n",
|
|
phba->brd_no, pring->ringno,
|
|
irsp->un.ulpWord[0],
|
|
irsp->un.ulpWord[1],
|
|
irsp->un.ulpWord[2],
|
|
irsp->un.ulpWord[3],
|
|
irsp->un.ulpWord[4],
|
|
irsp->un.ulpWord[5],
|
|
*(((uint32_t *) irsp) + 6),
|
|
*(((uint32_t *) irsp) + 7));
|
|
}
|
|
|
|
switch (type) {
|
|
case LPFC_ABORT_IOCB:
|
|
case LPFC_SOL_IOCB:
|
|
/*
|
|
* Idle exchange closed via ABTS from port. No iocb
|
|
* resources need to be recovered.
|
|
*/
|
|
if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"%d:0314 IOCB cmd 0x%x"
|
|
" processed. Skipping"
|
|
" completion", phba->brd_no,
|
|
irsp->ulpCommand);
|
|
break;
|
|
}
|
|
|
|
cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
|
|
&rspiocbq);
|
|
if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
|
|
(cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
|
|
&rspiocbq);
|
|
}
|
|
break;
|
|
default:
|
|
if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
|
|
char adaptermsg[LPFC_MAX_ADPTMSG];
|
|
memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
|
|
memcpy(&adaptermsg[0], (uint8_t *) irsp,
|
|
MAX_MSG_DATA);
|
|
dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s",
|
|
phba->brd_no, adaptermsg);
|
|
} else {
|
|
/* Unknown IOCB command */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"%d:0321 Unknown IOCB command "
|
|
"Data: x%x, x%x x%x x%x x%x\n",
|
|
phba->brd_no, type,
|
|
irsp->ulpCommand,
|
|
irsp->ulpStatus,
|
|
irsp->ulpIoTag,
|
|
irsp->ulpContext);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* The response IOCB has been processed. Update the ring
|
|
* pointer in SLIM. If the port response put pointer has not
|
|
* been updated, sync the pgp->rspPutInx and fetch the new port
|
|
* response put pointer.
|
|
*/
|
|
to_slim = phba->MBslimaddr +
|
|
(SLIMOFF + (pring->ringno * 2) + 1) * 4;
|
|
writeb(pring->rspidx, to_slim);
|
|
|
|
if (pring->rspidx == portRspPut)
|
|
portRspPut = le32_to_cpu(pgp->rspPutInx);
|
|
}
|
|
|
|
ha_copy = readl(phba->HAregaddr);
|
|
ha_copy >>= (LPFC_FCP_RING * 4);
|
|
|
|
if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) {
|
|
pring->stats.iocb_rsp_full++;
|
|
status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4));
|
|
writel(status, phba->CAregaddr);
|
|
readl(phba->CAregaddr);
|
|
}
|
|
if ((ha_copy & HA_R0CE_RSP) &&
|
|
(pring->flag & LPFC_CALL_RING_AVAILABLE)) {
|
|
pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
|
|
pring->stats.iocb_cmd_empty++;
|
|
|
|
/* Force update of the local copy of cmdGetInx */
|
|
pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
|
|
lpfc_sli_resume_iocb(phba, pring);
|
|
|
|
if ((pring->lpfc_sli_cmd_available))
|
|
(pring->lpfc_sli_cmd_available) (phba, pring);
|
|
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This routine presumes LPFC_FCP_RING handling and doesn't bother
|
|
* to check it explicitly.
|
|
*/
|
|
static int
|
|
lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
|
|
struct lpfc_sli_ring * pring, uint32_t mask)
|
|
{
|
|
struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
|
|
IOCB_t *irsp = NULL;
|
|
IOCB_t *entry = NULL;
|
|
struct lpfc_iocbq *cmdiocbq = NULL;
|
|
struct lpfc_iocbq rspiocbq;
|
|
uint32_t status;
|
|
uint32_t portRspPut, portRspMax;
|
|
int rc = 1;
|
|
lpfc_iocb_type type;
|
|
unsigned long iflag;
|
|
uint32_t rsp_cmpl = 0;
|
|
void __iomem *to_slim;
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
pring->stats.iocb_event++;
|
|
|
|
/*
|
|
* The next available response entry should never exceed the maximum
|
|
* entries. If it does, treat it as an adapter hardware error.
|
|
*/
|
|
portRspMax = pring->numRiocb;
|
|
portRspPut = le32_to_cpu(pgp->rspPutInx);
|
|
if (unlikely(portRspPut >= portRspMax)) {
|
|
lpfc_sli_rsp_pointers_error(phba, pring);
|
|
spin_unlock_irqrestore(phba->host->host_lock, iflag);
|
|
return 1;
|
|
}
|
|
|
|
rmb();
|
|
while (pring->rspidx != portRspPut) {
|
|
/*
|
|
* Fetch an entry off the ring and copy it into a local data
|
|
* structure. The copy involves a byte-swap since the
|
|
* network byte order and pci byte orders are different.
|
|
*/
|
|
entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
|
|
|
|
if (++pring->rspidx >= portRspMax)
|
|
pring->rspidx = 0;
|
|
|
|
lpfc_sli_pcimem_bcopy((uint32_t *) entry,
|
|
(uint32_t *) &rspiocbq.iocb,
|
|
sizeof (IOCB_t));
|
|
INIT_LIST_HEAD(&(rspiocbq.list));
|
|
irsp = &rspiocbq.iocb;
|
|
|
|
type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
|
|
pring->stats.iocb_rsp++;
|
|
rsp_cmpl++;
|
|
|
|
if (unlikely(irsp->ulpStatus)) {
|
|
/* Rsp ring <ringno> error: IOCB */
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"%d:0336 Rsp Ring %d error: IOCB Data: "
|
|
"x%x x%x x%x x%x x%x x%x x%x x%x\n",
|
|
phba->brd_no, pring->ringno,
|
|
irsp->un.ulpWord[0], irsp->un.ulpWord[1],
|
|
irsp->un.ulpWord[2], irsp->un.ulpWord[3],
|
|
irsp->un.ulpWord[4], irsp->un.ulpWord[5],
|
|
*(((uint32_t *) irsp) + 6),
|
|
*(((uint32_t *) irsp) + 7));
|
|
}
|
|
|
|
switch (type) {
|
|
case LPFC_ABORT_IOCB:
|
|
case LPFC_SOL_IOCB:
|
|
/*
|
|
* Idle exchange closed via ABTS from port. No iocb
|
|
* resources need to be recovered.
|
|
*/
|
|
if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"%d:0333 IOCB cmd 0x%x"
|
|
" processed. Skipping"
|
|
" completion\n", phba->brd_no,
|
|
irsp->ulpCommand);
|
|
break;
|
|
}
|
|
|
|
cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
|
|
&rspiocbq);
|
|
if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
|
|
if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
|
|
(cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
|
|
&rspiocbq);
|
|
} else {
|
|
spin_unlock_irqrestore(
|
|
phba->host->host_lock, iflag);
|
|
(cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
|
|
&rspiocbq);
|
|
spin_lock_irqsave(phba->host->host_lock,
|
|
iflag);
|
|
}
|
|
}
|
|
break;
|
|
case LPFC_UNSOL_IOCB:
|
|
spin_unlock_irqrestore(phba->host->host_lock, iflag);
|
|
lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
break;
|
|
default:
|
|
if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
|
|
char adaptermsg[LPFC_MAX_ADPTMSG];
|
|
memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
|
|
memcpy(&adaptermsg[0], (uint8_t *) irsp,
|
|
MAX_MSG_DATA);
|
|
dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s",
|
|
phba->brd_no, adaptermsg);
|
|
} else {
|
|
/* Unknown IOCB command */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"%d:0334 Unknown IOCB command "
|
|
"Data: x%x, x%x x%x x%x x%x\n",
|
|
phba->brd_no, type, irsp->ulpCommand,
|
|
irsp->ulpStatus, irsp->ulpIoTag,
|
|
irsp->ulpContext);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* The response IOCB has been processed. Update the ring
|
|
* pointer in SLIM. If the port response put pointer has not
|
|
* been updated, sync the pgp->rspPutInx and fetch the new port
|
|
* response put pointer.
|
|
*/
|
|
to_slim = phba->MBslimaddr +
|
|
(SLIMOFF + (pring->ringno * 2) + 1) * 4;
|
|
writel(pring->rspidx, to_slim);
|
|
|
|
if (pring->rspidx == portRspPut)
|
|
portRspPut = le32_to_cpu(pgp->rspPutInx);
|
|
}
|
|
|
|
if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
|
|
pring->stats.iocb_rsp_full++;
|
|
status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
|
|
writel(status, phba->CAregaddr);
|
|
readl(phba->CAregaddr);
|
|
}
|
|
if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
|
|
pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
|
|
pring->stats.iocb_cmd_empty++;
|
|
|
|
/* Force update of the local copy of cmdGetInx */
|
|
pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
|
|
lpfc_sli_resume_iocb(phba, pring);
|
|
|
|
if ((pring->lpfc_sli_cmd_available))
|
|
(pring->lpfc_sli_cmd_available) (phba, pring);
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(phba->host->host_lock, iflag);
|
|
return rc;
|
|
}
|
|
|
|
|
|
int
|
|
lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
|
|
struct lpfc_sli_ring * pring, uint32_t mask)
|
|
{
|
|
IOCB_t *entry;
|
|
IOCB_t *irsp = NULL;
|
|
struct lpfc_iocbq *rspiocbp = NULL;
|
|
struct lpfc_iocbq *next_iocb;
|
|
struct lpfc_iocbq *cmdiocbp;
|
|
struct lpfc_iocbq *saveq;
|
|
struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
|
|
uint8_t iocb_cmd_type;
|
|
lpfc_iocb_type type;
|
|
uint32_t status, free_saveq;
|
|
uint32_t portRspPut, portRspMax;
|
|
int rc = 1;
|
|
unsigned long iflag;
|
|
void __iomem *to_slim;
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
pring->stats.iocb_event++;
|
|
|
|
/*
|
|
* The next available response entry should never exceed the maximum
|
|
* entries. If it does, treat it as an adapter hardware error.
|
|
*/
|
|
portRspMax = pring->numRiocb;
|
|
portRspPut = le32_to_cpu(pgp->rspPutInx);
|
|
if (portRspPut >= portRspMax) {
|
|
/*
|
|
* Ring <ringno> handler: portRspPut <portRspPut> is bigger then
|
|
* rsp ring <portRspMax>
|
|
*/
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_SLI,
|
|
"%d:0303 Ring %d handler: portRspPut %d "
|
|
"is bigger then rsp ring %d\n",
|
|
phba->brd_no,
|
|
pring->ringno, portRspPut, portRspMax);
|
|
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
spin_unlock_irqrestore(phba->host->host_lock, iflag);
|
|
|
|
phba->work_hs = HS_FFER3;
|
|
lpfc_handle_eratt(phba);
|
|
|
|
return 1;
|
|
}
|
|
|
|
rmb();
|
|
while (pring->rspidx != portRspPut) {
|
|
/*
|
|
* Build a completion list and call the appropriate handler.
|
|
* The process is to get the next available response iocb, get
|
|
* a free iocb from the list, copy the response data into the
|
|
* free iocb, insert to the continuation list, and update the
|
|
* next response index to slim. This process makes response
|
|
* iocb's in the ring available to DMA as fast as possible but
|
|
* pays a penalty for a copy operation. Since the iocb is
|
|
* only 32 bytes, this penalty is considered small relative to
|
|
* the PCI reads for register values and a slim write. When
|
|
* the ulpLe field is set, the entire Command has been
|
|
* received.
|
|
*/
|
|
entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
|
|
rspiocbp = lpfc_sli_get_iocbq(phba);
|
|
if (rspiocbp == NULL) {
|
|
printk(KERN_ERR "%s: out of buffers! Failing "
|
|
"completion.\n", __FUNCTION__);
|
|
break;
|
|
}
|
|
|
|
lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, sizeof (IOCB_t));
|
|
irsp = &rspiocbp->iocb;
|
|
|
|
if (++pring->rspidx >= portRspMax)
|
|
pring->rspidx = 0;
|
|
|
|
to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2)
|
|
+ 1) * 4;
|
|
writel(pring->rspidx, to_slim);
|
|
|
|
if (list_empty(&(pring->iocb_continueq))) {
|
|
list_add(&rspiocbp->list, &(pring->iocb_continueq));
|
|
} else {
|
|
list_add_tail(&rspiocbp->list,
|
|
&(pring->iocb_continueq));
|
|
}
|
|
|
|
pring->iocb_continueq_cnt++;
|
|
if (irsp->ulpLe) {
|
|
/*
|
|
* By default, the driver expects to free all resources
|
|
* associated with this iocb completion.
|
|
*/
|
|
free_saveq = 1;
|
|
saveq = list_get_first(&pring->iocb_continueq,
|
|
struct lpfc_iocbq, list);
|
|
irsp = &(saveq->iocb);
|
|
list_del_init(&pring->iocb_continueq);
|
|
pring->iocb_continueq_cnt = 0;
|
|
|
|
pring->stats.iocb_rsp++;
|
|
|
|
if (irsp->ulpStatus) {
|
|
/* Rsp ring <ringno> error: IOCB */
|
|
lpfc_printf_log(phba,
|
|
KERN_WARNING,
|
|
LOG_SLI,
|
|
"%d:0328 Rsp Ring %d error: IOCB Data: "
|
|
"x%x x%x x%x x%x x%x x%x x%x x%x\n",
|
|
phba->brd_no,
|
|
pring->ringno,
|
|
irsp->un.ulpWord[0],
|
|
irsp->un.ulpWord[1],
|
|
irsp->un.ulpWord[2],
|
|
irsp->un.ulpWord[3],
|
|
irsp->un.ulpWord[4],
|
|
irsp->un.ulpWord[5],
|
|
*(((uint32_t *) irsp) + 6),
|
|
*(((uint32_t *) irsp) + 7));
|
|
}
|
|
|
|
/*
|
|
* Fetch the IOCB command type and call the correct
|
|
* completion routine. Solicited and Unsolicited
|
|
* IOCBs on the ELS ring get freed back to the
|
|
* lpfc_iocb_list by the discovery kernel thread.
|
|
*/
|
|
iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
|
|
type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
|
|
if (type == LPFC_SOL_IOCB) {
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
iflag);
|
|
rc = lpfc_sli_process_sol_iocb(phba, pring,
|
|
saveq);
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
} else if (type == LPFC_UNSOL_IOCB) {
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
iflag);
|
|
rc = lpfc_sli_process_unsol_iocb(phba, pring,
|
|
saveq);
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
} else if (type == LPFC_ABORT_IOCB) {
|
|
if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) &&
|
|
((cmdiocbp =
|
|
lpfc_sli_iocbq_lookup(phba, pring,
|
|
saveq)))) {
|
|
/* Call the specified completion
|
|
routine */
|
|
if (cmdiocbp->iocb_cmpl) {
|
|
spin_unlock_irqrestore(
|
|
phba->host->host_lock,
|
|
iflag);
|
|
(cmdiocbp->iocb_cmpl) (phba,
|
|
cmdiocbp, saveq);
|
|
spin_lock_irqsave(
|
|
phba->host->host_lock,
|
|
iflag);
|
|
} else
|
|
lpfc_sli_release_iocbq(phba,
|
|
cmdiocbp);
|
|
}
|
|
} else if (type == LPFC_UNKNOWN_IOCB) {
|
|
if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
|
|
|
|
char adaptermsg[LPFC_MAX_ADPTMSG];
|
|
|
|
memset(adaptermsg, 0,
|
|
LPFC_MAX_ADPTMSG);
|
|
memcpy(&adaptermsg[0], (uint8_t *) irsp,
|
|
MAX_MSG_DATA);
|
|
dev_warn(&((phba->pcidev)->dev),
|
|
"lpfc%d: %s",
|
|
phba->brd_no, adaptermsg);
|
|
} else {
|
|
/* Unknown IOCB command */
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_SLI,
|
|
"%d:0335 Unknown IOCB command "
|
|
"Data: x%x x%x x%x x%x\n",
|
|
phba->brd_no,
|
|
irsp->ulpCommand,
|
|
irsp->ulpStatus,
|
|
irsp->ulpIoTag,
|
|
irsp->ulpContext);
|
|
}
|
|
}
|
|
|
|
if (free_saveq) {
|
|
if (!list_empty(&saveq->list)) {
|
|
list_for_each_entry_safe(rspiocbp,
|
|
next_iocb,
|
|
&saveq->list,
|
|
list) {
|
|
list_del(&rspiocbp->list);
|
|
lpfc_sli_release_iocbq(phba,
|
|
rspiocbp);
|
|
}
|
|
}
|
|
lpfc_sli_release_iocbq(phba, saveq);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If the port response put pointer has not been updated, sync
|
|
* the pgp->rspPutInx in the MAILBOX_tand fetch the new port
|
|
* response put pointer.
|
|
*/
|
|
if (pring->rspidx == portRspPut) {
|
|
portRspPut = le32_to_cpu(pgp->rspPutInx);
|
|
}
|
|
} /* while (pring->rspidx != portRspPut) */
|
|
|
|
if ((rspiocbp != 0) && (mask & HA_R0RE_REQ)) {
|
|
/* At least one response entry has been freed */
|
|
pring->stats.iocb_rsp_full++;
|
|
/* SET RxRE_RSP in Chip Att register */
|
|
status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
|
|
writel(status, phba->CAregaddr);
|
|
readl(phba->CAregaddr); /* flush */
|
|
}
|
|
if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
|
|
pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
|
|
pring->stats.iocb_cmd_empty++;
|
|
|
|
/* Force update of the local copy of cmdGetInx */
|
|
pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
|
|
lpfc_sli_resume_iocb(phba, pring);
|
|
|
|
if ((pring->lpfc_sli_cmd_available))
|
|
(pring->lpfc_sli_cmd_available) (phba, pring);
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(phba->host->host_lock, iflag);
|
|
return rc;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
|
{
|
|
LIST_HEAD(completions);
|
|
struct lpfc_iocbq *iocb, *next_iocb;
|
|
IOCB_t *cmd = NULL;
|
|
int errcnt;
|
|
|
|
errcnt = 0;
|
|
|
|
/* Error everything on txq and txcmplq
|
|
* First do the txq.
|
|
*/
|
|
spin_lock_irq(phba->host->host_lock);
|
|
list_splice_init(&pring->txq, &completions);
|
|
pring->txq_cnt = 0;
|
|
|
|
/* Next issue ABTS for everything on the txcmplq */
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
|
|
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
|
|
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
while (!list_empty(&completions)) {
|
|
iocb = list_get_first(&completions, struct lpfc_iocbq, list);
|
|
cmd = &iocb->iocb;
|
|
list_del(&iocb->list);
|
|
|
|
if (iocb->iocb_cmpl) {
|
|
cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
|
|
cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
|
|
(iocb->iocb_cmpl) (phba, iocb, iocb);
|
|
} else
|
|
lpfc_sli_release_iocbq(phba, iocb);
|
|
}
|
|
|
|
return errcnt;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_brdready(struct lpfc_hba * phba, uint32_t mask)
|
|
{
|
|
uint32_t status;
|
|
int i = 0;
|
|
int retval = 0;
|
|
|
|
/* Read the HBA Host Status Register */
|
|
status = readl(phba->HSregaddr);
|
|
|
|
/*
|
|
* Check status register every 100ms for 5 retries, then every
|
|
* 500ms for 5, then every 2.5 sec for 5, then reset board and
|
|
* every 2.5 sec for 4.
|
|
* Break our of the loop if errors occurred during init.
|
|
*/
|
|
while (((status & mask) != mask) &&
|
|
!(status & HS_FFERM) &&
|
|
i++ < 20) {
|
|
|
|
if (i <= 5)
|
|
msleep(10);
|
|
else if (i <= 10)
|
|
msleep(500);
|
|
else
|
|
msleep(2500);
|
|
|
|
if (i == 15) {
|
|
phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */
|
|
lpfc_sli_brdrestart(phba);
|
|
}
|
|
/* Read the HBA Host Status Register */
|
|
status = readl(phba->HSregaddr);
|
|
}
|
|
|
|
/* Check to see if any errors occurred during init */
|
|
if ((status & HS_FFERM) || (i >= 20)) {
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
retval = 1;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
#define BARRIER_TEST_PATTERN (0xdeadbeef)
|
|
|
|
void lpfc_reset_barrier(struct lpfc_hba * phba)
|
|
{
|
|
uint32_t __iomem *resp_buf;
|
|
uint32_t __iomem *mbox_buf;
|
|
volatile uint32_t mbox;
|
|
uint32_t hc_copy;
|
|
int i;
|
|
uint8_t hdrtype;
|
|
|
|
pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
|
|
if (hdrtype != 0x80 ||
|
|
(FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
|
|
FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
|
|
return;
|
|
|
|
/*
|
|
* Tell the other part of the chip to suspend temporarily all
|
|
* its DMA activity.
|
|
*/
|
|
resp_buf = phba->MBslimaddr;
|
|
|
|
/* Disable the error attention */
|
|
hc_copy = readl(phba->HCregaddr);
|
|
writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
|
|
if (readl(phba->HAregaddr) & HA_ERATT) {
|
|
/* Clear Chip error bit */
|
|
writel(HA_ERATT, phba->HAregaddr);
|
|
phba->stopped = 1;
|
|
}
|
|
|
|
mbox = 0;
|
|
((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
|
|
((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
|
|
|
|
writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
|
|
mbox_buf = phba->MBslimaddr;
|
|
writel(mbox, mbox_buf);
|
|
|
|
for (i = 0;
|
|
readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
|
|
mdelay(1);
|
|
|
|
if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
|
|
if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE ||
|
|
phba->stopped)
|
|
goto restore_hc;
|
|
else
|
|
goto clear_errat;
|
|
}
|
|
|
|
((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
|
|
for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
|
|
mdelay(1);
|
|
|
|
clear_errat:
|
|
|
|
while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
|
|
mdelay(1);
|
|
|
|
if (readl(phba->HAregaddr) & HA_ERATT) {
|
|
writel(HA_ERATT, phba->HAregaddr);
|
|
phba->stopped = 1;
|
|
}
|
|
|
|
restore_hc:
|
|
writel(hc_copy, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
|
|
int
|
|
lpfc_sli_brdkill(struct lpfc_hba * phba)
|
|
{
|
|
struct lpfc_sli *psli;
|
|
LPFC_MBOXQ_t *pmb;
|
|
uint32_t status;
|
|
uint32_t ha_copy;
|
|
int retval;
|
|
int i = 0;
|
|
|
|
psli = &phba->sli;
|
|
|
|
/* Kill HBA */
|
|
lpfc_printf_log(phba,
|
|
KERN_INFO,
|
|
LOG_SLI,
|
|
"%d:0329 Kill HBA Data: x%x x%x\n",
|
|
phba->brd_no,
|
|
phba->hba_state,
|
|
psli->sli_flag);
|
|
|
|
if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
|
|
GFP_KERNEL)) == 0)
|
|
return 1;
|
|
|
|
/* Disable the error attention */
|
|
spin_lock_irq(phba->host->host_lock);
|
|
status = readl(phba->HCregaddr);
|
|
status &= ~HC_ERINT_ENA;
|
|
writel(status, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
lpfc_kill_board(phba, pmb);
|
|
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
|
|
|
|
if (retval != MBX_SUCCESS) {
|
|
if (retval != MBX_BUSY)
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return 1;
|
|
}
|
|
|
|
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
|
|
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
/* There is no completion for a KILL_BOARD mbox cmd. Check for an error
|
|
* attention every 100ms for 3 seconds. If we don't get ERATT after
|
|
* 3 seconds we still set HBA_ERROR state because the status of the
|
|
* board is now undefined.
|
|
*/
|
|
ha_copy = readl(phba->HAregaddr);
|
|
|
|
while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
|
|
mdelay(100);
|
|
ha_copy = readl(phba->HAregaddr);
|
|
}
|
|
|
|
del_timer_sync(&psli->mbox_tmo);
|
|
if (ha_copy & HA_ERATT) {
|
|
writel(HA_ERATT, phba->HAregaddr);
|
|
phba->stopped = 1;
|
|
}
|
|
spin_lock_irq(phba->host->host_lock);
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
psli->mbox_active = NULL;
|
|
lpfc_hba_down_post(phba);
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
|
|
return (ha_copy & HA_ERATT ? 0 : 1);
|
|
}
|
|
|
|
int
|
|
lpfc_sli_brdreset(struct lpfc_hba * phba)
|
|
{
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_sli_ring *pring;
|
|
uint16_t cfg_value;
|
|
int i;
|
|
|
|
psli = &phba->sli;
|
|
|
|
/* Reset HBA */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"%d:0325 Reset HBA Data: x%x x%x\n", phba->brd_no,
|
|
phba->hba_state, psli->sli_flag);
|
|
|
|
/* perform board reset */
|
|
phba->fc_eventTag = 0;
|
|
phba->fc_myDID = 0;
|
|
phba->fc_prevDID = 0;
|
|
|
|
/* Turn off parity checking and serr during the physical reset */
|
|
pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
|
|
pci_write_config_word(phba->pcidev, PCI_COMMAND,
|
|
(cfg_value &
|
|
~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
|
|
|
|
psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA);
|
|
/* Now toggle INITFF bit in the Host Control Register */
|
|
writel(HC_INITFF, phba->HCregaddr);
|
|
mdelay(1);
|
|
readl(phba->HCregaddr); /* flush */
|
|
writel(0, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
|
|
/* Restore PCI cmd register */
|
|
pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
|
|
|
|
/* Initialize relevant SLI info */
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
pring->flag = 0;
|
|
pring->rspidx = 0;
|
|
pring->next_cmdidx = 0;
|
|
pring->local_getidx = 0;
|
|
pring->cmdidx = 0;
|
|
pring->missbufcnt = 0;
|
|
}
|
|
|
|
phba->hba_state = LPFC_WARM_START;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_brdrestart(struct lpfc_hba * phba)
|
|
{
|
|
MAILBOX_t *mb;
|
|
struct lpfc_sli *psli;
|
|
uint16_t skip_post;
|
|
volatile uint32_t word0;
|
|
void __iomem *to_slim;
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
|
|
psli = &phba->sli;
|
|
|
|
/* Restart HBA */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"%d:0337 Restart HBA Data: x%x x%x\n", phba->brd_no,
|
|
phba->hba_state, psli->sli_flag);
|
|
|
|
word0 = 0;
|
|
mb = (MAILBOX_t *) &word0;
|
|
mb->mbxCommand = MBX_RESTART;
|
|
mb->mbxHc = 1;
|
|
|
|
lpfc_reset_barrier(phba);
|
|
|
|
to_slim = phba->MBslimaddr;
|
|
writel(*(uint32_t *) mb, to_slim);
|
|
readl(to_slim); /* flush */
|
|
|
|
/* Only skip post after fc_ffinit is completed */
|
|
if (phba->hba_state) {
|
|
skip_post = 1;
|
|
word0 = 1; /* This is really setting up word1 */
|
|
} else {
|
|
skip_post = 0;
|
|
word0 = 0; /* This is really setting up word1 */
|
|
}
|
|
to_slim = phba->MBslimaddr + sizeof (uint32_t);
|
|
writel(*(uint32_t *) mb, to_slim);
|
|
readl(to_slim); /* flush */
|
|
|
|
lpfc_sli_brdreset(phba);
|
|
phba->stopped = 0;
|
|
phba->hba_state = LPFC_INIT_START;
|
|
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
|
|
psli->stats_start = get_seconds();
|
|
|
|
if (skip_post)
|
|
mdelay(100);
|
|
else
|
|
mdelay(2000);
|
|
|
|
lpfc_hba_down_post(phba);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
lpfc_sli_chipset_init(struct lpfc_hba *phba)
|
|
{
|
|
uint32_t status, i = 0;
|
|
|
|
/* Read the HBA Host Status Register */
|
|
status = readl(phba->HSregaddr);
|
|
|
|
/* Check status register to see what current state is */
|
|
i = 0;
|
|
while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
|
|
|
|
/* Check every 100ms for 5 retries, then every 500ms for 5, then
|
|
* every 2.5 sec for 5, then reset board and every 2.5 sec for
|
|
* 4.
|
|
*/
|
|
if (i++ >= 20) {
|
|
/* Adapter failed to init, timeout, status reg
|
|
<status> */
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_INIT,
|
|
"%d:0436 Adapter failed to init, "
|
|
"timeout, status reg x%x\n",
|
|
phba->brd_no,
|
|
status);
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
/* Check to see if any errors occurred during init */
|
|
if (status & HS_FFERM) {
|
|
/* ERROR: During chipset initialization */
|
|
/* Adapter failed to init, chipset, status reg
|
|
<status> */
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_INIT,
|
|
"%d:0437 Adapter failed to init, "
|
|
"chipset, status reg x%x\n",
|
|
phba->brd_no,
|
|
status);
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
return -EIO;
|
|
}
|
|
|
|
if (i <= 5) {
|
|
msleep(10);
|
|
} else if (i <= 10) {
|
|
msleep(500);
|
|
} else {
|
|
msleep(2500);
|
|
}
|
|
|
|
if (i == 15) {
|
|
phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */
|
|
lpfc_sli_brdrestart(phba);
|
|
}
|
|
/* Read the HBA Host Status Register */
|
|
status = readl(phba->HSregaddr);
|
|
}
|
|
|
|
/* Check to see if any errors occurred during init */
|
|
if (status & HS_FFERM) {
|
|
/* ERROR: During chipset initialization */
|
|
/* Adapter failed to init, chipset, status reg <status> */
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_INIT,
|
|
"%d:0438 Adapter failed to init, chipset, "
|
|
"status reg x%x\n",
|
|
phba->brd_no,
|
|
status);
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
return -EIO;
|
|
}
|
|
|
|
/* Clear all interrupt enable conditions */
|
|
writel(0, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
|
|
/* setup host attn register */
|
|
writel(0xffffffff, phba->HAregaddr);
|
|
readl(phba->HAregaddr); /* flush */
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_hba_setup(struct lpfc_hba * phba)
|
|
{
|
|
LPFC_MBOXQ_t *pmb;
|
|
uint32_t resetcount = 0, rc = 0, done = 0;
|
|
|
|
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmb) {
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
while (resetcount < 2 && !done) {
|
|
spin_lock_irq(phba->host->host_lock);
|
|
phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
phba->hba_state = LPFC_STATE_UNKNOWN;
|
|
lpfc_sli_brdrestart(phba);
|
|
msleep(2500);
|
|
rc = lpfc_sli_chipset_init(phba);
|
|
if (rc)
|
|
break;
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
resetcount++;
|
|
|
|
/* Call pre CONFIG_PORT mailbox command initialization. A value of 0
|
|
* means the call was successful. Any other nonzero value is a failure,
|
|
* but if ERESTART is returned, the driver may reset the HBA and try
|
|
* again.
|
|
*/
|
|
rc = lpfc_config_port_prep(phba);
|
|
if (rc == -ERESTART) {
|
|
phba->hba_state = 0;
|
|
continue;
|
|
} else if (rc) {
|
|
break;
|
|
}
|
|
|
|
phba->hba_state = LPFC_INIT_MBX_CMDS;
|
|
lpfc_config_port(phba, pmb);
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
|
|
if (rc == MBX_SUCCESS)
|
|
done = 1;
|
|
else {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"%d:0442 Adapter failed to init, mbxCmd x%x "
|
|
"CONFIG_PORT, mbxStatus x%x Data: x%x\n",
|
|
phba->brd_no, pmb->mb.mbxCommand,
|
|
pmb->mb.mbxStatus, 0);
|
|
phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
|
|
}
|
|
}
|
|
if (!done)
|
|
goto lpfc_sli_hba_setup_error;
|
|
|
|
rc = lpfc_sli_ring_map(phba, pmb);
|
|
|
|
if (rc)
|
|
goto lpfc_sli_hba_setup_error;
|
|
|
|
phba->sli.sli_flag |= LPFC_PROCESS_LA;
|
|
|
|
rc = lpfc_config_port_post(phba);
|
|
if (rc)
|
|
goto lpfc_sli_hba_setup_error;
|
|
|
|
goto lpfc_sli_hba_setup_exit;
|
|
lpfc_sli_hba_setup_error:
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
lpfc_sli_hba_setup_exit:
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return rc;
|
|
}
|
|
|
|
/*! lpfc_mbox_timeout
|
|
*
|
|
* \pre
|
|
* \post
|
|
* \param hba Pointer to per struct lpfc_hba structure
|
|
* \param l1 Pointer to the driver's mailbox queue.
|
|
* \return
|
|
* void
|
|
*
|
|
* \b Description:
|
|
*
|
|
* This routine handles mailbox timeout events at timer interrupt context.
|
|
*/
|
|
void
|
|
lpfc_mbox_timeout(unsigned long ptr)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
unsigned long iflag;
|
|
|
|
phba = (struct lpfc_hba *)ptr;
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
if (!(phba->work_hba_events & WORKER_MBOX_TMO)) {
|
|
phba->work_hba_events |= WORKER_MBOX_TMO;
|
|
if (phba->work_wait)
|
|
wake_up(phba->work_wait);
|
|
}
|
|
spin_unlock_irqrestore(phba->host->host_lock, iflag);
|
|
}
|
|
|
|
void
|
|
lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
|
|
{
|
|
LPFC_MBOXQ_t *pmbox;
|
|
MAILBOX_t *mb;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring;
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
if (!(phba->work_hba_events & WORKER_MBOX_TMO)) {
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return;
|
|
}
|
|
|
|
pmbox = phba->sli.mbox_active;
|
|
mb = &pmbox->mb;
|
|
|
|
/* Mbox cmd <mbxCommand> timeout */
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_MBOX | LOG_SLI,
|
|
"%d:0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
|
|
phba->brd_no,
|
|
mb->mbxCommand,
|
|
phba->hba_state,
|
|
phba->sli.sli_flag,
|
|
phba->sli.mbox_active);
|
|
|
|
/* Setting state unknown so lpfc_sli_abort_iocb_ring
|
|
* would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
|
|
* it to fail all oustanding SCSI IO.
|
|
*/
|
|
phba->hba_state = LPFC_STATE_UNKNOWN;
|
|
phba->work_hba_events &= ~WORKER_MBOX_TMO;
|
|
phba->fc_flag |= FC_ESTABLISH_LINK;
|
|
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
pring = &psli->ring[psli->fcp_ring];
|
|
lpfc_sli_abort_iocb_ring(phba, pring);
|
|
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"%d:0316 Resetting board due to mailbox timeout\n",
|
|
phba->brd_no);
|
|
/*
|
|
* lpfc_offline calls lpfc_sli_hba_down which will clean up
|
|
* on oustanding mailbox commands.
|
|
*/
|
|
lpfc_offline_prep(phba);
|
|
lpfc_offline(phba);
|
|
lpfc_sli_brdrestart(phba);
|
|
if (lpfc_online(phba) == 0) /* Initialize the HBA */
|
|
mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
|
|
lpfc_unblock_mgmt_io(phba);
|
|
return;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
|
|
{
|
|
MAILBOX_t *mb;
|
|
struct lpfc_sli *psli;
|
|
uint32_t status, evtctr;
|
|
uint32_t ha_copy;
|
|
int i;
|
|
unsigned long drvr_flag = 0;
|
|
volatile uint32_t word0, ldata;
|
|
void __iomem *to_slim;
|
|
|
|
/* If the PCI channel is in offline state, do not post mbox. */
|
|
if (unlikely(pci_channel_offline(phba->pcidev)))
|
|
return MBX_NOT_FINISHED;
|
|
|
|
psli = &phba->sli;
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, drvr_flag);
|
|
|
|
|
|
mb = &pmbox->mb;
|
|
status = MBX_SUCCESS;
|
|
|
|
if (phba->hba_state == LPFC_HBA_ERROR) {
|
|
spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
|
|
|
|
/* Mbox command <mbxCommand> cannot issue */
|
|
LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
|
|
return (MBX_NOT_FINISHED);
|
|
}
|
|
|
|
if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
|
|
!(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
|
|
spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
|
|
LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
|
|
return (MBX_NOT_FINISHED);
|
|
}
|
|
|
|
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
|
|
/* Polling for a mbox command when another one is already active
|
|
* is not allowed in SLI. Also, the driver must have established
|
|
* SLI2 mode to queue and process multiple mbox commands.
|
|
*/
|
|
|
|
if (flag & MBX_POLL) {
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
drvr_flag);
|
|
|
|
/* Mbox command <mbxCommand> cannot issue */
|
|
LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
|
|
return (MBX_NOT_FINISHED);
|
|
}
|
|
|
|
if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) {
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
drvr_flag);
|
|
/* Mbox command <mbxCommand> cannot issue */
|
|
LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
|
|
return (MBX_NOT_FINISHED);
|
|
}
|
|
|
|
/* Handle STOP IOCB processing flag. This is only meaningful
|
|
* if we are not polling for mbox completion.
|
|
*/
|
|
if (flag & MBX_STOP_IOCB) {
|
|
flag &= ~MBX_STOP_IOCB;
|
|
/* Now flag each ring */
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
/* If the ring is active, flag it */
|
|
if (psli->ring[i].cmdringaddr) {
|
|
psli->ring[i].flag |=
|
|
LPFC_STOP_IOCB_MBX;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Another mailbox command is still being processed, queue this
|
|
* command to be processed later.
|
|
*/
|
|
lpfc_mbox_put(phba, pmbox);
|
|
|
|
/* Mbox cmd issue - BUSY */
|
|
lpfc_printf_log(phba,
|
|
KERN_INFO,
|
|
LOG_MBOX | LOG_SLI,
|
|
"%d:0308 Mbox cmd issue - BUSY Data: x%x x%x x%x x%x\n",
|
|
phba->brd_no,
|
|
mb->mbxCommand,
|
|
phba->hba_state,
|
|
psli->sli_flag,
|
|
flag);
|
|
|
|
psli->slistat.mbox_busy++;
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
drvr_flag);
|
|
|
|
return (MBX_BUSY);
|
|
}
|
|
|
|
/* Handle STOP IOCB processing flag. This is only meaningful
|
|
* if we are not polling for mbox completion.
|
|
*/
|
|
if (flag & MBX_STOP_IOCB) {
|
|
flag &= ~MBX_STOP_IOCB;
|
|
if (flag == MBX_NOWAIT) {
|
|
/* Now flag each ring */
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
/* If the ring is active, flag it */
|
|
if (psli->ring[i].cmdringaddr) {
|
|
psli->ring[i].flag |=
|
|
LPFC_STOP_IOCB_MBX;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
|
|
|
|
/* If we are not polling, we MUST be in SLI2 mode */
|
|
if (flag != MBX_POLL) {
|
|
if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) &&
|
|
(mb->mbxCommand != MBX_KILL_BOARD)) {
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
drvr_flag);
|
|
/* Mbox command <mbxCommand> cannot issue */
|
|
LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag);
|
|
return (MBX_NOT_FINISHED);
|
|
}
|
|
/* timeout active mbox command */
|
|
mod_timer(&psli->mbox_tmo, (jiffies +
|
|
(HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
|
|
}
|
|
|
|
/* Mailbox cmd <cmd> issue */
|
|
lpfc_printf_log(phba,
|
|
KERN_INFO,
|
|
LOG_MBOX | LOG_SLI,
|
|
"%d:0309 Mailbox cmd x%x issue Data: x%x x%x x%x\n",
|
|
phba->brd_no,
|
|
mb->mbxCommand,
|
|
phba->hba_state,
|
|
psli->sli_flag,
|
|
flag);
|
|
|
|
psli->slistat.mbox_cmd++;
|
|
evtctr = psli->slistat.mbox_event;
|
|
|
|
/* next set own bit for the adapter and copy over command word */
|
|
mb->mbxOwner = OWN_CHIP;
|
|
|
|
if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
|
|
/* First copy command data to host SLIM area */
|
|
lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE);
|
|
} else {
|
|
if (mb->mbxCommand == MBX_CONFIG_PORT) {
|
|
/* copy command data into host mbox for cmpl */
|
|
lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx,
|
|
MAILBOX_CMD_SIZE);
|
|
}
|
|
|
|
/* First copy mbox command data to HBA SLIM, skip past first
|
|
word */
|
|
to_slim = phba->MBslimaddr + sizeof (uint32_t);
|
|
lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
|
|
MAILBOX_CMD_SIZE - sizeof (uint32_t));
|
|
|
|
/* Next copy over first word, with mbxOwner set */
|
|
ldata = *((volatile uint32_t *)mb);
|
|
to_slim = phba->MBslimaddr;
|
|
writel(ldata, to_slim);
|
|
readl(to_slim); /* flush */
|
|
|
|
if (mb->mbxCommand == MBX_CONFIG_PORT) {
|
|
/* switch over to host mailbox */
|
|
psli->sli_flag |= LPFC_SLI2_ACTIVE;
|
|
}
|
|
}
|
|
|
|
wmb();
|
|
/* interrupt board to doit right away */
|
|
writel(CA_MBATT, phba->CAregaddr);
|
|
readl(phba->CAregaddr); /* flush */
|
|
|
|
switch (flag) {
|
|
case MBX_NOWAIT:
|
|
/* Don't wait for it to finish, just return */
|
|
psli->mbox_active = pmbox;
|
|
break;
|
|
|
|
case MBX_POLL:
|
|
psli->mbox_active = NULL;
|
|
if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
|
|
/* First read mbox status word */
|
|
word0 = *((volatile uint32_t *)&phba->slim2p->mbx);
|
|
word0 = le32_to_cpu(word0);
|
|
} else {
|
|
/* First read mbox status word */
|
|
word0 = readl(phba->MBslimaddr);
|
|
}
|
|
|
|
/* Read the HBA Host Attention Register */
|
|
ha_copy = readl(phba->HAregaddr);
|
|
|
|
i = lpfc_mbox_tmo_val(phba, mb->mbxCommand);
|
|
i *= 1000; /* Convert to ms */
|
|
|
|
/* Wait for command to complete */
|
|
while (((word0 & OWN_CHIP) == OWN_CHIP) ||
|
|
(!(ha_copy & HA_MBATT) &&
|
|
(phba->hba_state > LPFC_WARM_START))) {
|
|
if (i-- <= 0) {
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
drvr_flag);
|
|
return (MBX_NOT_FINISHED);
|
|
}
|
|
|
|
/* Check if we took a mbox interrupt while we were
|
|
polling */
|
|
if (((word0 & OWN_CHIP) != OWN_CHIP)
|
|
&& (evtctr != psli->slistat.mbox_event))
|
|
break;
|
|
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
drvr_flag);
|
|
|
|
msleep(1);
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, drvr_flag);
|
|
|
|
if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
|
|
/* First copy command data */
|
|
word0 = *((volatile uint32_t *)
|
|
&phba->slim2p->mbx);
|
|
word0 = le32_to_cpu(word0);
|
|
if (mb->mbxCommand == MBX_CONFIG_PORT) {
|
|
MAILBOX_t *slimmb;
|
|
volatile uint32_t slimword0;
|
|
/* Check real SLIM for any errors */
|
|
slimword0 = readl(phba->MBslimaddr);
|
|
slimmb = (MAILBOX_t *) & slimword0;
|
|
if (((slimword0 & OWN_CHIP) != OWN_CHIP)
|
|
&& slimmb->mbxStatus) {
|
|
psli->sli_flag &=
|
|
~LPFC_SLI2_ACTIVE;
|
|
word0 = slimword0;
|
|
}
|
|
}
|
|
} else {
|
|
/* First copy command data */
|
|
word0 = readl(phba->MBslimaddr);
|
|
}
|
|
/* Read the HBA Host Attention Register */
|
|
ha_copy = readl(phba->HAregaddr);
|
|
}
|
|
|
|
if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
|
|
/* copy results back to user */
|
|
lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb,
|
|
MAILBOX_CMD_SIZE);
|
|
} else {
|
|
/* First copy command data */
|
|
lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
|
|
MAILBOX_CMD_SIZE);
|
|
if ((mb->mbxCommand == MBX_DUMP_MEMORY) &&
|
|
pmbox->context2) {
|
|
lpfc_memcpy_from_slim((void *)pmbox->context2,
|
|
phba->MBslimaddr + DMP_RSP_OFFSET,
|
|
mb->un.varDmp.word_cnt);
|
|
}
|
|
}
|
|
|
|
writel(HA_MBATT, phba->HAregaddr);
|
|
readl(phba->HAregaddr); /* flush */
|
|
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
status = mb->mbxStatus;
|
|
}
|
|
|
|
spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
|
|
return (status);
|
|
}
|
|
|
|
static int
|
|
lpfc_sli_ringtx_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
|
|
struct lpfc_iocbq * piocb)
|
|
{
|
|
/* Insert the caller's iocb in the txq tail for later processing. */
|
|
list_add_tail(&piocb->list, &pring->txq);
|
|
pring->txq_cnt++;
|
|
return (0);
|
|
}
|
|
|
|
static struct lpfc_iocbq *
|
|
lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq ** piocb)
|
|
{
|
|
struct lpfc_iocbq * nextiocb;
|
|
|
|
nextiocb = lpfc_sli_ringtx_get(phba, pring);
|
|
if (!nextiocb) {
|
|
nextiocb = *piocb;
|
|
*piocb = NULL;
|
|
}
|
|
|
|
return nextiocb;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *piocb, uint32_t flag)
|
|
{
|
|
struct lpfc_iocbq *nextiocb;
|
|
IOCB_t *iocb;
|
|
|
|
/* If the PCI channel is in offline state, do not post iocbs. */
|
|
if (unlikely(pci_channel_offline(phba->pcidev)))
|
|
return IOCB_ERROR;
|
|
|
|
/*
|
|
* We should never get an IOCB if we are in a < LINK_DOWN state
|
|
*/
|
|
if (unlikely(phba->hba_state < LPFC_LINK_DOWN))
|
|
return IOCB_ERROR;
|
|
|
|
/*
|
|
* Check to see if we are blocking IOCB processing because of a
|
|
* outstanding mbox command.
|
|
*/
|
|
if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX))
|
|
goto iocb_busy;
|
|
|
|
if (unlikely(phba->hba_state == LPFC_LINK_DOWN)) {
|
|
/*
|
|
* Only CREATE_XRI, CLOSE_XRI, ABORT_XRI, and QUE_RING_BUF
|
|
* can be issued if the link is not up.
|
|
*/
|
|
switch (piocb->iocb.ulpCommand) {
|
|
case CMD_QUE_RING_BUF_CN:
|
|
case CMD_QUE_RING_BUF64_CN:
|
|
/*
|
|
* For IOCBs, like QUE_RING_BUF, that have no rsp ring
|
|
* completion, iocb_cmpl MUST be 0.
|
|
*/
|
|
if (piocb->iocb_cmpl)
|
|
piocb->iocb_cmpl = NULL;
|
|
/*FALLTHROUGH*/
|
|
case CMD_CREATE_XRI_CR:
|
|
break;
|
|
default:
|
|
goto iocb_busy;
|
|
}
|
|
|
|
/*
|
|
* For FCP commands, we must be in a state where we can process link
|
|
* attention events.
|
|
*/
|
|
} else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
|
|
!(phba->sli.sli_flag & LPFC_PROCESS_LA)))
|
|
goto iocb_busy;
|
|
|
|
while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
|
|
(nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
|
|
lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
|
|
|
|
if (iocb)
|
|
lpfc_sli_update_ring(phba, pring);
|
|
else
|
|
lpfc_sli_update_full_ring(phba, pring);
|
|
|
|
if (!piocb)
|
|
return IOCB_SUCCESS;
|
|
|
|
goto out_busy;
|
|
|
|
iocb_busy:
|
|
pring->stats.iocb_cmd_delay++;
|
|
|
|
out_busy:
|
|
|
|
if (!(flag & SLI_IOCB_RET_IOCB)) {
|
|
lpfc_sli_ringtx_put(phba, pring, piocb);
|
|
return IOCB_SUCCESS;
|
|
}
|
|
|
|
return IOCB_BUSY;
|
|
}
|
|
|
|
static int
|
|
lpfc_extra_ring_setup( struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_sli_ring *pring;
|
|
|
|
psli = &phba->sli;
|
|
|
|
/* Adjust cmd/rsp ring iocb entries more evenly */
|
|
|
|
/* Take some away from the FCP ring */
|
|
pring = &psli->ring[psli->fcp_ring];
|
|
pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
|
|
pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
|
|
pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
|
|
pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
|
|
|
|
/* and give them to the extra ring */
|
|
pring = &psli->ring[psli->extra_ring];
|
|
|
|
pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
|
|
pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
|
|
pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
|
|
pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
|
|
|
|
/* Setup default profile for this ring */
|
|
pring->iotag_max = 4096;
|
|
pring->num_mask = 1;
|
|
pring->prt[0].profile = 0; /* Mask 0 */
|
|
pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
|
|
pring->prt[0].type = phba->cfg_multi_ring_type;
|
|
pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_setup(struct lpfc_hba *phba)
|
|
{
|
|
int i, totiocb = 0;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring;
|
|
|
|
psli->num_rings = MAX_CONFIGURED_RINGS;
|
|
psli->sli_flag = 0;
|
|
psli->fcp_ring = LPFC_FCP_RING;
|
|
psli->next_ring = LPFC_FCP_NEXT_RING;
|
|
psli->extra_ring = LPFC_EXTRA_RING;
|
|
|
|
psli->iocbq_lookup = NULL;
|
|
psli->iocbq_lookup_len = 0;
|
|
psli->last_iotag = 0;
|
|
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
switch (i) {
|
|
case LPFC_FCP_RING: /* ring 0 - FCP */
|
|
/* numCiocb and numRiocb are used in config_port */
|
|
pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
|
|
pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
|
|
pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
|
|
pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
|
|
pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
|
|
pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
|
|
pring->iotag_ctr = 0;
|
|
pring->iotag_max =
|
|
(phba->cfg_hba_queue_depth * 2);
|
|
pring->fast_iotag = pring->iotag_max;
|
|
pring->num_mask = 0;
|
|
break;
|
|
case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
|
|
/* numCiocb and numRiocb are used in config_port */
|
|
pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
|
|
pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
|
|
pring->num_mask = 0;
|
|
break;
|
|
case LPFC_ELS_RING: /* ring 2 - ELS / CT */
|
|
/* numCiocb and numRiocb are used in config_port */
|
|
pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
|
|
pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
|
|
pring->fast_iotag = 0;
|
|
pring->iotag_ctr = 0;
|
|
pring->iotag_max = 4096;
|
|
pring->num_mask = 4;
|
|
pring->prt[0].profile = 0; /* Mask 0 */
|
|
pring->prt[0].rctl = FC_ELS_REQ;
|
|
pring->prt[0].type = FC_ELS_DATA;
|
|
pring->prt[0].lpfc_sli_rcv_unsol_event =
|
|
lpfc_els_unsol_event;
|
|
pring->prt[1].profile = 0; /* Mask 1 */
|
|
pring->prt[1].rctl = FC_ELS_RSP;
|
|
pring->prt[1].type = FC_ELS_DATA;
|
|
pring->prt[1].lpfc_sli_rcv_unsol_event =
|
|
lpfc_els_unsol_event;
|
|
pring->prt[2].profile = 0; /* Mask 2 */
|
|
/* NameServer Inquiry */
|
|
pring->prt[2].rctl = FC_UNSOL_CTL;
|
|
/* NameServer */
|
|
pring->prt[2].type = FC_COMMON_TRANSPORT_ULP;
|
|
pring->prt[2].lpfc_sli_rcv_unsol_event =
|
|
lpfc_ct_unsol_event;
|
|
pring->prt[3].profile = 0; /* Mask 3 */
|
|
/* NameServer response */
|
|
pring->prt[3].rctl = FC_SOL_CTL;
|
|
/* NameServer */
|
|
pring->prt[3].type = FC_COMMON_TRANSPORT_ULP;
|
|
pring->prt[3].lpfc_sli_rcv_unsol_event =
|
|
lpfc_ct_unsol_event;
|
|
break;
|
|
}
|
|
totiocb += (pring->numCiocb + pring->numRiocb);
|
|
}
|
|
if (totiocb > MAX_SLI2_IOCB) {
|
|
/* Too many cmd / rsp ring entries in SLI2 SLIM */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"%d:0462 Too many cmd / rsp ring entries in "
|
|
"SLI2 SLIM Data: x%x x%x\n",
|
|
phba->brd_no, totiocb, MAX_SLI2_IOCB);
|
|
}
|
|
if (phba->cfg_multi_ring_support == 2)
|
|
lpfc_extra_ring_setup(phba);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_queue_setup(struct lpfc_hba * phba)
|
|
{
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_sli_ring *pring;
|
|
int i;
|
|
|
|
psli = &phba->sli;
|
|
spin_lock_irq(phba->host->host_lock);
|
|
INIT_LIST_HEAD(&psli->mboxq);
|
|
/* Initialize list headers for txq and txcmplq as double linked lists */
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
pring->ringno = i;
|
|
pring->next_cmdidx = 0;
|
|
pring->local_getidx = 0;
|
|
pring->cmdidx = 0;
|
|
INIT_LIST_HEAD(&pring->txq);
|
|
INIT_LIST_HEAD(&pring->txcmplq);
|
|
INIT_LIST_HEAD(&pring->iocb_continueq);
|
|
INIT_LIST_HEAD(&pring->postbufq);
|
|
}
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
lpfc_sli_hba_down(struct lpfc_hba * phba)
|
|
{
|
|
LIST_HEAD(completions);
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_sli_ring *pring;
|
|
LPFC_MBOXQ_t *pmb;
|
|
struct lpfc_iocbq *iocb;
|
|
IOCB_t *cmd = NULL;
|
|
int i;
|
|
unsigned long flags = 0;
|
|
|
|
psli = &phba->sli;
|
|
lpfc_hba_down_prep(phba);
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, flags);
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
pring->flag |= LPFC_DEFERRED_RING_EVENT;
|
|
|
|
/*
|
|
* Error everything on the txq since these iocbs have not been
|
|
* given to the FW yet.
|
|
*/
|
|
list_splice_init(&pring->txq, &completions);
|
|
pring->txq_cnt = 0;
|
|
|
|
}
|
|
spin_unlock_irqrestore(phba->host->host_lock, flags);
|
|
|
|
while (!list_empty(&completions)) {
|
|
iocb = list_get_first(&completions, struct lpfc_iocbq, list);
|
|
cmd = &iocb->iocb;
|
|
list_del(&iocb->list);
|
|
|
|
if (iocb->iocb_cmpl) {
|
|
cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
|
|
cmd->un.ulpWord[4] = IOERR_SLI_DOWN;
|
|
(iocb->iocb_cmpl) (phba, iocb, iocb);
|
|
} else
|
|
lpfc_sli_release_iocbq(phba, iocb);
|
|
}
|
|
|
|
/* Return any active mbox cmds */
|
|
del_timer_sync(&psli->mbox_tmo);
|
|
spin_lock_irqsave(phba->host->host_lock, flags);
|
|
phba->work_hba_events &= ~WORKER_MBOX_TMO;
|
|
if (psli->mbox_active) {
|
|
pmb = psli->mbox_active;
|
|
pmb->mb.mbxStatus = MBX_NOT_FINISHED;
|
|
if (pmb->mbox_cmpl) {
|
|
spin_unlock_irqrestore(phba->host->host_lock, flags);
|
|
pmb->mbox_cmpl(phba,pmb);
|
|
spin_lock_irqsave(phba->host->host_lock, flags);
|
|
}
|
|
}
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
psli->mbox_active = NULL;
|
|
|
|
/* Return any pending mbox cmds */
|
|
while ((pmb = lpfc_mbox_get(phba)) != NULL) {
|
|
pmb->mb.mbxStatus = MBX_NOT_FINISHED;
|
|
if (pmb->mbox_cmpl) {
|
|
spin_unlock_irqrestore(phba->host->host_lock, flags);
|
|
pmb->mbox_cmpl(phba,pmb);
|
|
spin_lock_irqsave(phba->host->host_lock, flags);
|
|
}
|
|
}
|
|
|
|
INIT_LIST_HEAD(&psli->mboxq);
|
|
|
|
spin_unlock_irqrestore(phba->host->host_lock, flags);
|
|
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
|
|
{
|
|
uint32_t *src = srcp;
|
|
uint32_t *dest = destp;
|
|
uint32_t ldata;
|
|
int i;
|
|
|
|
for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
|
|
ldata = *src;
|
|
ldata = le32_to_cpu(ldata);
|
|
*dest = ldata;
|
|
src++;
|
|
dest++;
|
|
}
|
|
}
|
|
|
|
int
|
|
lpfc_sli_ringpostbuf_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
|
|
struct lpfc_dmabuf * mp)
|
|
{
|
|
/* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
|
|
later */
|
|
list_add_tail(&mp->list, &pring->postbufq);
|
|
|
|
pring->postbufq_cnt++;
|
|
return 0;
|
|
}
|
|
|
|
|
|
struct lpfc_dmabuf *
|
|
lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
dma_addr_t phys)
|
|
{
|
|
struct lpfc_dmabuf *mp, *next_mp;
|
|
struct list_head *slp = &pring->postbufq;
|
|
|
|
/* Search postbufq, from the begining, looking for a match on phys */
|
|
list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
|
|
if (mp->phys == phys) {
|
|
list_del_init(&mp->list);
|
|
pring->postbufq_cnt--;
|
|
return mp;
|
|
}
|
|
}
|
|
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"%d:0410 Cannot find virtual addr for mapped buf on "
|
|
"ring %d Data x%llx x%p x%p x%x\n",
|
|
phba->brd_no, pring->ringno, (unsigned long long)phys,
|
|
slp->next, slp->prev, pring->postbufq_cnt);
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
lpfc_sli_abort_els_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
|
|
struct lpfc_iocbq * rspiocb)
|
|
{
|
|
spin_lock_irq(phba->host->host_lock);
|
|
lpfc_sli_release_iocbq(phba, cmdiocb);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_issue_abort_iotag(struct lpfc_hba * phba,
|
|
struct lpfc_sli_ring * pring,
|
|
struct lpfc_iocbq * cmdiocb)
|
|
{
|
|
struct lpfc_iocbq *abtsiocbp;
|
|
IOCB_t *icmd = NULL;
|
|
IOCB_t *iabt = NULL;
|
|
int retval = IOCB_ERROR;
|
|
|
|
/* There are certain command types we don't want
|
|
* to abort.
|
|
*/
|
|
icmd = &cmdiocb->iocb;
|
|
if ((icmd->ulpCommand == CMD_ABORT_XRI_CN) ||
|
|
(icmd->ulpCommand == CMD_CLOSE_XRI_CN))
|
|
return 0;
|
|
|
|
/* If we're unloading, interrupts are disabled so we
|
|
* need to cleanup the iocb here.
|
|
*/
|
|
if (phba->fc_flag & FC_UNLOADING)
|
|
goto abort_iotag_exit;
|
|
|
|
/* issue ABTS for this IOCB based on iotag */
|
|
abtsiocbp = lpfc_sli_get_iocbq(phba);
|
|
if (abtsiocbp == NULL)
|
|
return 0;
|
|
|
|
/* This signals the response to set the correct status
|
|
* before calling the completion handler.
|
|
*/
|
|
cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
|
|
|
|
iabt = &abtsiocbp->iocb;
|
|
iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
|
|
iabt->un.acxri.abortContextTag = icmd->ulpContext;
|
|
iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
|
|
iabt->ulpLe = 1;
|
|
iabt->ulpClass = icmd->ulpClass;
|
|
|
|
if (phba->hba_state >= LPFC_LINK_UP)
|
|
iabt->ulpCommand = CMD_ABORT_XRI_CN;
|
|
else
|
|
iabt->ulpCommand = CMD_CLOSE_XRI_CN;
|
|
|
|
abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"%d:0339 Abort xri x%x, original iotag x%x, abort "
|
|
"cmd iotag x%x\n",
|
|
phba->brd_no, iabt->un.acxri.abortContextTag,
|
|
iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
|
|
retval = lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0);
|
|
|
|
abort_iotag_exit:
|
|
|
|
/* If we could not issue an abort dequeue the iocb and handle
|
|
* the completion here.
|
|
*/
|
|
if (retval == IOCB_ERROR) {
|
|
list_del(&cmdiocb->list);
|
|
pring->txcmplq_cnt--;
|
|
|
|
if (cmdiocb->iocb_cmpl) {
|
|
icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
|
|
icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
(cmdiocb->iocb_cmpl) (phba, cmdiocb, cmdiocb);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
} else
|
|
lpfc_sli_release_iocbq(phba, cmdiocb);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, uint16_t tgt_id,
|
|
uint64_t lun_id, uint32_t ctx,
|
|
lpfc_ctx_cmd ctx_cmd)
|
|
{
|
|
struct lpfc_scsi_buf *lpfc_cmd;
|
|
struct scsi_cmnd *cmnd;
|
|
int rc = 1;
|
|
|
|
if (!(iocbq->iocb_flag & LPFC_IO_FCP))
|
|
return rc;
|
|
|
|
lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
|
|
cmnd = lpfc_cmd->pCmd;
|
|
|
|
if (cmnd == NULL)
|
|
return rc;
|
|
|
|
switch (ctx_cmd) {
|
|
case LPFC_CTX_LUN:
|
|
if ((cmnd->device->id == tgt_id) &&
|
|
(cmnd->device->lun == lun_id))
|
|
rc = 0;
|
|
break;
|
|
case LPFC_CTX_TGT:
|
|
if (cmnd->device->id == tgt_id)
|
|
rc = 0;
|
|
break;
|
|
case LPFC_CTX_CTX:
|
|
if (iocbq->iocb.ulpContext == ctx)
|
|
rc = 0;
|
|
break;
|
|
case LPFC_CTX_HOST:
|
|
rc = 0;
|
|
break;
|
|
default:
|
|
printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
|
|
__FUNCTION__, ctx_cmd);
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd)
|
|
{
|
|
struct lpfc_iocbq *iocbq;
|
|
int sum, i;
|
|
|
|
for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
|
|
iocbq = phba->sli.iocbq_lookup[i];
|
|
|
|
if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id,
|
|
0, ctx_cmd) == 0)
|
|
sum++;
|
|
}
|
|
|
|
return sum;
|
|
}
|
|
|
|
void
|
|
lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
|
|
struct lpfc_iocbq * rspiocb)
|
|
{
|
|
unsigned long iflags;
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, iflags);
|
|
lpfc_sli_release_iocbq(phba, cmdiocb);
|
|
spin_unlock_irqrestore(phba->host->host_lock, iflags);
|
|
return;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
uint16_t tgt_id, uint64_t lun_id, uint32_t ctx,
|
|
lpfc_ctx_cmd abort_cmd)
|
|
{
|
|
struct lpfc_iocbq *iocbq;
|
|
struct lpfc_iocbq *abtsiocb;
|
|
IOCB_t *cmd = NULL;
|
|
int errcnt = 0, ret_val = 0;
|
|
int i;
|
|
|
|
for (i = 1; i <= phba->sli.last_iotag; i++) {
|
|
iocbq = phba->sli.iocbq_lookup[i];
|
|
|
|
if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id,
|
|
0, abort_cmd) != 0)
|
|
continue;
|
|
|
|
/* issue ABTS for this IOCB based on iotag */
|
|
abtsiocb = lpfc_sli_get_iocbq(phba);
|
|
if (abtsiocb == NULL) {
|
|
errcnt++;
|
|
continue;
|
|
}
|
|
|
|
cmd = &iocbq->iocb;
|
|
abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
|
|
abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
|
|
abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
|
|
abtsiocb->iocb.ulpLe = 1;
|
|
abtsiocb->iocb.ulpClass = cmd->ulpClass;
|
|
|
|
if (phba->hba_state >= LPFC_LINK_UP)
|
|
abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
|
|
else
|
|
abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
|
|
|
|
/* Setup callback routine and issue the command. */
|
|
abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
|
|
ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0);
|
|
if (ret_val == IOCB_ERROR) {
|
|
lpfc_sli_release_iocbq(phba, abtsiocb);
|
|
errcnt++;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
return errcnt;
|
|
}
|
|
|
|
static void
|
|
lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *cmdiocbq,
|
|
struct lpfc_iocbq *rspiocbq)
|
|
{
|
|
wait_queue_head_t *pdone_q;
|
|
unsigned long iflags;
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, iflags);
|
|
cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
|
|
if (cmdiocbq->context2 && rspiocbq)
|
|
memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
|
|
&rspiocbq->iocb, sizeof(IOCB_t));
|
|
|
|
pdone_q = cmdiocbq->context_un.wait_queue;
|
|
spin_unlock_irqrestore(phba->host->host_lock, iflags);
|
|
if (pdone_q)
|
|
wake_up(pdone_q);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Issue the caller's iocb and wait for its completion, but no longer than the
|
|
* caller's timeout. Note that iocb_flags is cleared before the
|
|
* lpfc_sli_issue_call since the wake routine sets a unique value and by
|
|
* definition this is a wait function.
|
|
*/
|
|
int
|
|
lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
|
|
struct lpfc_sli_ring * pring,
|
|
struct lpfc_iocbq * piocb,
|
|
struct lpfc_iocbq * prspiocbq,
|
|
uint32_t timeout)
|
|
{
|
|
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
|
|
long timeleft, timeout_req = 0;
|
|
int retval = IOCB_SUCCESS;
|
|
uint32_t creg_val;
|
|
|
|
/*
|
|
* If the caller has provided a response iocbq buffer, then context2
|
|
* is NULL or its an error.
|
|
*/
|
|
if (prspiocbq) {
|
|
if (piocb->context2)
|
|
return IOCB_ERROR;
|
|
piocb->context2 = prspiocbq;
|
|
}
|
|
|
|
piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
|
|
piocb->context_un.wait_queue = &done_q;
|
|
piocb->iocb_flag &= ~LPFC_IO_WAKE;
|
|
|
|
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
|
|
creg_val = readl(phba->HCregaddr);
|
|
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
|
|
writel(creg_val, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
|
|
retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0);
|
|
if (retval == IOCB_SUCCESS) {
|
|
timeout_req = timeout * HZ;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
timeleft = wait_event_timeout(done_q,
|
|
piocb->iocb_flag & LPFC_IO_WAKE,
|
|
timeout_req);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
|
|
if (piocb->iocb_flag & LPFC_IO_WAKE) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"%d:0331 IOCB wake signaled\n",
|
|
phba->brd_no);
|
|
} else if (timeleft == 0) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"%d:0338 IOCB wait timeout error - no "
|
|
"wake response Data x%x\n",
|
|
phba->brd_no, timeout);
|
|
retval = IOCB_TIMEDOUT;
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"%d:0330 IOCB wake NOT set, "
|
|
"Data x%x x%lx\n", phba->brd_no,
|
|
timeout, (timeleft / jiffies));
|
|
retval = IOCB_TIMEDOUT;
|
|
}
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"%d:0332 IOCB wait issue failed, Data x%x\n",
|
|
phba->brd_no, retval);
|
|
retval = IOCB_ERROR;
|
|
}
|
|
|
|
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
|
|
creg_val = readl(phba->HCregaddr);
|
|
creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
|
|
writel(creg_val, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
|
|
if (prspiocbq)
|
|
piocb->context2 = NULL;
|
|
|
|
piocb->context_un.wait_queue = NULL;
|
|
piocb->iocb_cmpl = NULL;
|
|
return retval;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq,
|
|
uint32_t timeout)
|
|
{
|
|
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
|
|
int retval;
|
|
|
|
/* The caller must leave context1 empty. */
|
|
if (pmboxq->context1 != 0) {
|
|
return (MBX_NOT_FINISHED);
|
|
}
|
|
|
|
/* setup wake call as IOCB callback */
|
|
pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
|
|
/* setup context field to pass wait_queue pointer to wake function */
|
|
pmboxq->context1 = &done_q;
|
|
|
|
/* now issue the command */
|
|
retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
|
|
|
|
if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
|
|
wait_event_interruptible_timeout(done_q,
|
|
pmboxq->mbox_flag & LPFC_MBX_WAKE,
|
|
timeout * HZ);
|
|
|
|
pmboxq->context1 = NULL;
|
|
/*
|
|
* if LPFC_MBX_WAKE flag is set the mailbox is completed
|
|
* else do not free the resources.
|
|
*/
|
|
if (pmboxq->mbox_flag & LPFC_MBX_WAKE)
|
|
retval = MBX_SUCCESS;
|
|
else
|
|
retval = MBX_TIMEOUT;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba)
|
|
{
|
|
int i = 0;
|
|
|
|
while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !phba->stopped) {
|
|
if (i++ > LPFC_MBOX_TMO * 1000)
|
|
return 1;
|
|
|
|
if (lpfc_sli_handle_mb_event(phba) == 0)
|
|
i = 0;
|
|
|
|
msleep(1);
|
|
}
|
|
|
|
return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0;
|
|
}
|
|
|
|
irqreturn_t
|
|
lpfc_intr_handler(int irq, void *dev_id)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
uint32_t ha_copy;
|
|
uint32_t work_ha_copy;
|
|
unsigned long status;
|
|
int i;
|
|
uint32_t control;
|
|
|
|
/*
|
|
* Get the driver's phba structure from the dev_id and
|
|
* assume the HBA is not interrupting.
|
|
*/
|
|
phba = (struct lpfc_hba *) dev_id;
|
|
|
|
if (unlikely(!phba))
|
|
return IRQ_NONE;
|
|
|
|
/* If the pci channel is offline, ignore all the interrupts. */
|
|
if (unlikely(pci_channel_offline(phba->pcidev)))
|
|
return IRQ_NONE;
|
|
|
|
phba->sli.slistat.sli_intr++;
|
|
|
|
/*
|
|
* Call the HBA to see if it is interrupting. If not, don't claim
|
|
* the interrupt
|
|
*/
|
|
|
|
/* Ignore all interrupts during initialization. */
|
|
if (unlikely(phba->hba_state < LPFC_LINK_DOWN))
|
|
return IRQ_NONE;
|
|
|
|
/*
|
|
* Read host attention register to determine interrupt source
|
|
* Clear Attention Sources, except Error Attention (to
|
|
* preserve status) and Link Attention
|
|
*/
|
|
spin_lock(phba->host->host_lock);
|
|
ha_copy = readl(phba->HAregaddr);
|
|
writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
|
|
readl(phba->HAregaddr); /* flush */
|
|
spin_unlock(phba->host->host_lock);
|
|
|
|
if (unlikely(!ha_copy))
|
|
return IRQ_NONE;
|
|
|
|
work_ha_copy = ha_copy & phba->work_ha_mask;
|
|
|
|
if (unlikely(work_ha_copy)) {
|
|
if (work_ha_copy & HA_LATT) {
|
|
if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
|
|
/*
|
|
* Turn off Link Attention interrupts
|
|
* until CLEAR_LA done
|
|
*/
|
|
spin_lock(phba->host->host_lock);
|
|
phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
|
|
control = readl(phba->HCregaddr);
|
|
control &= ~HC_LAINT_ENA;
|
|
writel(control, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
spin_unlock(phba->host->host_lock);
|
|
}
|
|
else
|
|
work_ha_copy &= ~HA_LATT;
|
|
}
|
|
|
|
if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) {
|
|
for (i = 0; i < phba->sli.num_rings; i++) {
|
|
if (work_ha_copy & (HA_RXATT << (4*i))) {
|
|
/*
|
|
* Turn off Slow Rings interrupts
|
|
*/
|
|
spin_lock(phba->host->host_lock);
|
|
control = readl(phba->HCregaddr);
|
|
control &= ~(HC_R0INT_ENA << i);
|
|
writel(control, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
spin_unlock(phba->host->host_lock);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (work_ha_copy & HA_ERATT) {
|
|
phba->hba_state = LPFC_HBA_ERROR;
|
|
/*
|
|
* There was a link/board error. Read the
|
|
* status register to retrieve the error event
|
|
* and process it.
|
|
*/
|
|
phba->sli.slistat.err_attn_event++;
|
|
/* Save status info */
|
|
phba->work_hs = readl(phba->HSregaddr);
|
|
phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
|
|
phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
|
|
|
|
/* Clear Chip error bit */
|
|
writel(HA_ERATT, phba->HAregaddr);
|
|
readl(phba->HAregaddr); /* flush */
|
|
phba->stopped = 1;
|
|
}
|
|
|
|
spin_lock(phba->host->host_lock);
|
|
phba->work_ha |= work_ha_copy;
|
|
if (phba->work_wait)
|
|
wake_up(phba->work_wait);
|
|
spin_unlock(phba->host->host_lock);
|
|
}
|
|
|
|
ha_copy &= ~(phba->work_ha_mask);
|
|
|
|
/*
|
|
* Process all events on FCP ring. Take the optimized path for
|
|
* FCP IO. Any other IO is slow path and is handled by
|
|
* the worker thread.
|
|
*/
|
|
status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
|
|
status >>= (4*LPFC_FCP_RING);
|
|
if (status & HA_RXATT)
|
|
lpfc_sli_handle_fast_ring_event(phba,
|
|
&phba->sli.ring[LPFC_FCP_RING],
|
|
status);
|
|
|
|
if (phba->cfg_multi_ring_support == 2) {
|
|
/*
|
|
* Process all events on extra ring. Take the optimized path
|
|
* for extra ring IO. Any other IO is slow path and is handled
|
|
* by the worker thread.
|
|
*/
|
|
status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
|
|
status >>= (4*LPFC_EXTRA_RING);
|
|
if (status & HA_RXATT) {
|
|
lpfc_sli_handle_fast_ring_event(phba,
|
|
&phba->sli.ring[LPFC_EXTRA_RING],
|
|
status);
|
|
}
|
|
}
|
|
return IRQ_HANDLED;
|
|
|
|
} /* lpfc_intr_handler */
|