![James.Smart@Emulex.Com](/assets/img/avatar_default.png)
Fix for "Unknown IOCB command Data: x0 x3 x0 x0" messages and inability to see devices On some platforms, the host-memory based ring mgmt area was not zero. Also, driver wasn't manipulating the entire 32bits of the ring pointers. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2883 lines
74 KiB
C
2883 lines
74 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) 2004-2005 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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/*
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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_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_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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uint16_t iotag;
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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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if (pring->fast_lookup) {
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/* Setup fast lookup based on iotag for completion */
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iotag = piocb->iocb.ulpIoTag;
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if (iotag && (iotag < pring->fast_iotag))
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*(pring->fast_lookup + iotag) = piocb;
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else {
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/* Cmd ring <ringno> put: iotag <iotag> greater then
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configured max <fast_iotag> wd0 <icmd> */
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lpfc_printf_log(phba,
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KERN_ERR,
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LOG_SLI,
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"%d:0316 Cmd ring %d put: iotag x%x "
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"greater then configured max x%x "
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"wd0 x%x\n",
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phba->brd_no,
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pring->ringno, iotag,
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pring->fast_iotag,
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*(((uint32_t *)(&piocb->iocb)) + 7));
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}
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}
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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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static uint32_t
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lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
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{
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uint32_t search_start;
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if (pring->fast_lookup == NULL) {
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pring->iotag_ctr++;
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if (pring->iotag_ctr >= pring->iotag_max)
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pring->iotag_ctr = 1;
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return pring->iotag_ctr;
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}
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search_start = pring->iotag_ctr;
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do {
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pring->iotag_ctr++;
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if (pring->iotag_ctr >= pring->fast_iotag)
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pring->iotag_ctr = 1;
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if (*(pring->fast_lookup + pring->iotag_ctr) == NULL)
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return pring->iotag_ctr;
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} while (pring->iotag_ctr != search_start);
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/*
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* Outstanding I/O count for ring <ringno> is at max <fast_iotag>
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*/
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lpfc_printf_log(phba,
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KERN_ERR,
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LOG_SLI,
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"%d:0318 Outstanding I/O count for ring %d is at max x%x\n",
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phba->brd_no,
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pring->ringno,
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pring->fast_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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* Allocate and set up an iotag
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*/
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nextiocb->iocb.ulpIoTag =
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lpfc_sli_next_iotag(phba, &phba->sli.ring[phba->sli.fcp_ring]);
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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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list_add_tail(&nextiocb->list, &phba->lpfc_iocb_list);
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}
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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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* 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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/* 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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/* 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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*/
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phba->sli.ring[ringno].local_getidx
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= le32_to_cpu(pgp->cmdGetInx);
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spin_lock_irq(phba->host->host_lock);
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lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]);
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spin_unlock_irq(phba->host->host_lock);
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}
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}
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}
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static int
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lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
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{
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uint8_t ret;
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switch (mbxCommand) {
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case MBX_LOAD_SM:
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case MBX_READ_NV:
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case MBX_WRITE_NV:
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case MBX_RUN_BIU_DIAG:
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case MBX_INIT_LINK:
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case MBX_DOWN_LINK:
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case MBX_CONFIG_LINK:
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case MBX_CONFIG_RING:
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case MBX_RESET_RING:
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case MBX_READ_CONFIG:
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case MBX_READ_RCONFIG:
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case MBX_READ_SPARM:
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case MBX_READ_STATUS:
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case MBX_READ_RPI:
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case MBX_READ_XRI:
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case MBX_READ_REV:
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case MBX_READ_LNK_STAT:
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case MBX_REG_LOGIN:
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case MBX_UNREG_LOGIN:
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case MBX_READ_LA:
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case MBX_CLEAR_LA:
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case MBX_DUMP_MEMORY:
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case MBX_DUMP_CONTEXT:
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case MBX_RUN_DIAGS:
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case MBX_RESTART:
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case MBX_UPDATE_CFG:
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case MBX_DOWN_LOAD:
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case MBX_DEL_LD_ENTRY:
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case MBX_RUN_PROGRAM:
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case MBX_SET_MASK:
|
|
case MBX_SET_SLIM:
|
|
case MBX_UNREG_D_ID:
|
|
case MBX_CONFIG_FARP:
|
|
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.
|
|
*/
|
|
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;
|
|
mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
if (mp) {
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
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_ERR,
|
|
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);
|
|
}
|
|
|
|
/* Free any lpfc_dmabuf's waiting for mbox cmd cmpls */
|
|
while (!list_empty(&phba->freebufList)) {
|
|
struct lpfc_dmabuf *mp;
|
|
|
|
mp = NULL;
|
|
list_remove_head((&phba->freebufList),
|
|
mp,
|
|
struct lpfc_dmabuf,
|
|
list);
|
|
if (mp) {
|
|
lpfc_mbuf_free(phba, mp->virt,
|
|
mp->phys);
|
|
kfree(mp);
|
|
}
|
|
}
|
|
}
|
|
|
|
} 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) {
|
|
(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)) {
|
|
(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_txcmpl_ring_search_slow(struct lpfc_sli_ring * pring,
|
|
struct lpfc_iocbq * prspiocb)
|
|
{
|
|
IOCB_t *icmd = NULL;
|
|
IOCB_t *irsp = NULL;
|
|
struct lpfc_iocbq *cmd_iocb;
|
|
struct lpfc_iocbq *iocb, *next_iocb;
|
|
uint16_t iotag;
|
|
|
|
irsp = &prspiocb->iocb;
|
|
iotag = irsp->ulpIoTag;
|
|
cmd_iocb = NULL;
|
|
|
|
/* Search through txcmpl from the begining */
|
|
list_for_each_entry_safe(iocb, next_iocb, &(pring->txcmplq), list) {
|
|
icmd = &iocb->iocb;
|
|
if (iotag == icmd->ulpIoTag) {
|
|
/* Found a match. */
|
|
cmd_iocb = iocb;
|
|
list_del(&iocb->list);
|
|
pring->txcmplq_cnt--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return (cmd_iocb);
|
|
}
|
|
|
|
static struct lpfc_iocbq *
|
|
lpfc_sli_txcmpl_ring_iotag_lookup(struct lpfc_hba * phba,
|
|
struct lpfc_sli_ring * pring,
|
|
struct lpfc_iocbq * prspiocb)
|
|
{
|
|
IOCB_t *irsp = NULL;
|
|
struct lpfc_iocbq *cmd_iocb = NULL;
|
|
uint16_t iotag;
|
|
|
|
if (unlikely(pring->fast_lookup == NULL))
|
|
return NULL;
|
|
|
|
/* Use fast lookup based on iotag for completion */
|
|
irsp = &prspiocb->iocb;
|
|
iotag = irsp->ulpIoTag;
|
|
if (iotag < pring->fast_iotag) {
|
|
cmd_iocb = *(pring->fast_lookup + iotag);
|
|
*(pring->fast_lookup + iotag) = NULL;
|
|
if (cmd_iocb) {
|
|
list_del(&cmd_iocb->list);
|
|
pring->txcmplq_cnt--;
|
|
return cmd_iocb;
|
|
} else {
|
|
/*
|
|
* This is clearly an error. A ring that uses iotags
|
|
* should never have a interrupt for a completion that
|
|
* is not on the ring. Return NULL and log a error.
|
|
*/
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"%d:0327 Rsp ring %d error - command "
|
|
"completion for iotag x%x not found\n",
|
|
phba->brd_no, pring->ringno, iotag);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Rsp ring <ringno> get: iotag <iotag> greater then
|
|
* configured max <fast_iotag> wd0 <irsp>. This is an
|
|
* error. Just return NULL.
|
|
*/
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"%d:0317 Rsp ring %d get: iotag x%x greater then "
|
|
"configured max x%x wd0 x%x\n",
|
|
phba->brd_no, pring->ringno, iotag, pring->fast_iotag,
|
|
*(((uint32_t *) irsp) + 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_txcmpl_ring_search_slow(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) {
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
iflag);
|
|
(cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
}
|
|
else {
|
|
if (cmdiocbp->iocb_flag & LPFC_IO_POLL)
|
|
rc = 0;
|
|
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
iflag);
|
|
(cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
|
|
spin_lock_irqsave(phba->host->host_lock, iflag);
|
|
}
|
|
} else {
|
|
list_add_tail(&cmdiocbp->list, &phba->lpfc_iocb_list);
|
|
}
|
|
} 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;
|
|
}
|
|
|
|
/*
|
|
* 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)) {
|
|
/*
|
|
* 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, portRspPut,
|
|
portRspMax);
|
|
|
|
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);
|
|
|
|
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_t *) IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
|
|
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)) {
|
|
printk(KERN_INFO "%s: IOCB cmd 0x%x processed. "
|
|
"Skipping completion\n", __FUNCTION__,
|
|
irsp->ulpCommand);
|
|
break;
|
|
}
|
|
|
|
cmdiocbq = lpfc_sli_txcmpl_ring_iotag_lookup(phba,
|
|
pring,
|
|
&rspiocbq);
|
|
if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
|
|
spin_unlock_irqrestore(
|
|
phba->host->host_lock, iflag);
|
|
(cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
|
|
&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: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.
|
|
*/
|
|
if (++pring->rspidx >= portRspMax)
|
|
pring->rspidx = 0;
|
|
|
|
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 list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
|
|
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:0312 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();
|
|
lpfc_iocb_list = &phba->lpfc_iocb_list;
|
|
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);
|
|
list_remove_head(lpfc_iocb_list, rspiocbp, struct lpfc_iocbq,
|
|
list);
|
|
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_txcmpl_ring_search_slow(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 {
|
|
list_add_tail(&cmdiocbp->list,
|
|
lpfc_iocb_list);
|
|
}
|
|
}
|
|
} 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:0321 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_add_tail(&rspiocbp->list,
|
|
lpfc_iocb_list);
|
|
}
|
|
}
|
|
|
|
list_add_tail(&saveq->list, lpfc_iocb_list);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
struct lpfc_iocbq *iocb, *next_iocb;
|
|
IOCB_t *icmd = NULL, *cmd = NULL;
|
|
int errcnt;
|
|
uint16_t iotag;
|
|
|
|
errcnt = 0;
|
|
|
|
/* Error everything on txq and txcmplq
|
|
* First do the txq.
|
|
*/
|
|
spin_lock_irq(phba->host->host_lock);
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
|
|
list_del_init(&iocb->list);
|
|
if (iocb->iocb_cmpl) {
|
|
icmd = &iocb->iocb;
|
|
icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
|
|
icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
(iocb->iocb_cmpl) (phba, iocb, iocb);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
} else {
|
|
list_add_tail(&iocb->list, &phba->lpfc_iocb_list);
|
|
}
|
|
}
|
|
pring->txq_cnt = 0;
|
|
INIT_LIST_HEAD(&(pring->txq));
|
|
|
|
/* Next issue ABTS for everything on the txcmplq */
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
|
|
cmd = &iocb->iocb;
|
|
|
|
/*
|
|
* Imediate abort of IOCB, clear fast_lookup entry,
|
|
* if any, deque and call compl
|
|
*/
|
|
iotag = cmd->ulpIoTag;
|
|
if (iotag && pring->fast_lookup &&
|
|
(iotag < pring->fast_iotag))
|
|
pring->fast_lookup[iotag] = NULL;
|
|
|
|
list_del_init(&iocb->list);
|
|
pring->txcmplq_cnt--;
|
|
|
|
if (iocb->iocb_cmpl) {
|
|
cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
|
|
cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
(iocb->iocb_cmpl) (phba, iocb, iocb);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
} else {
|
|
list_add_tail(&iocb->list, &phba->lpfc_iocb_list);
|
|
}
|
|
}
|
|
|
|
INIT_LIST_HEAD(&pring->txcmplq);
|
|
pring->txcmplq_cnt = 0;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
|
|
return errcnt;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* lpfc_sli_send_reset
|
|
*
|
|
* Note: After returning from this function, the HBA cannot be accessed for
|
|
* 1 ms. Since we do not wish to delay in interrupt context, it is the
|
|
* responsibility of the caller to perform the mdelay(1) and flush via readl().
|
|
******************************************************************************/
|
|
static int
|
|
lpfc_sli_send_reset(struct lpfc_hba * phba, uint16_t skip_post)
|
|
{
|
|
MAILBOX_t *swpmb;
|
|
volatile uint32_t word0;
|
|
void __iomem *to_slim;
|
|
unsigned long flags = 0;
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, flags);
|
|
|
|
/* A board reset must use REAL SLIM. */
|
|
phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
|
|
|
|
word0 = 0;
|
|
swpmb = (MAILBOX_t *) & word0;
|
|
swpmb->mbxCommand = MBX_RESTART;
|
|
swpmb->mbxHc = 1;
|
|
|
|
to_slim = phba->MBslimaddr;
|
|
writel(*(uint32_t *) swpmb, to_slim);
|
|
readl(to_slim); /* flush */
|
|
|
|
/* Only skip post after fc_ffinit is completed */
|
|
if (skip_post) {
|
|
word0 = 1; /* This is really setting up word1 */
|
|
} else {
|
|
word0 = 0; /* This is really setting up word1 */
|
|
}
|
|
to_slim = phba->MBslimaddr + sizeof (uint32_t);
|
|
writel(*(uint32_t *) swpmb, to_slim);
|
|
readl(to_slim); /* flush */
|
|
|
|
/* Turn off parity checking and serr during the physical reset */
|
|
pci_read_config_word(phba->pcidev, PCI_COMMAND, &phba->pci_cfg_value);
|
|
pci_write_config_word(phba->pcidev, PCI_COMMAND,
|
|
(phba->pci_cfg_value &
|
|
~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
|
|
|
|
writel(HC_INITFF, phba->HCregaddr);
|
|
|
|
phba->hba_state = LPFC_INIT_START;
|
|
spin_unlock_irqrestore(phba->host->host_lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
lpfc_sli_brdreset(struct lpfc_hba * phba, uint16_t skip_post)
|
|
{
|
|
struct lpfc_sli_ring *pring;
|
|
int i;
|
|
struct lpfc_dmabuf *mp, *next_mp;
|
|
unsigned long flags = 0;
|
|
|
|
lpfc_sli_send_reset(phba, skip_post);
|
|
mdelay(1);
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, flags);
|
|
/* Risk the write on flush case ie no delay after the readl */
|
|
readl(phba->HCregaddr); /* flush */
|
|
/* Now toggle INITFF bit set by lpfc_sli_send_reset */
|
|
writel(0, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
|
|
/* Restore PCI cmd register */
|
|
pci_write_config_word(phba->pcidev, PCI_COMMAND, phba->pci_cfg_value);
|
|
|
|
/* perform board reset */
|
|
phba->fc_eventTag = 0;
|
|
phba->fc_myDID = 0;
|
|
phba->fc_prevDID = Mask_DID;
|
|
|
|
/* Reset HBA */
|
|
lpfc_printf_log(phba,
|
|
KERN_INFO,
|
|
LOG_SLI,
|
|
"%d:0325 Reset HBA Data: x%x x%x x%x\n",
|
|
phba->brd_no,
|
|
phba->hba_state,
|
|
phba->sli.sli_flag,
|
|
skip_post);
|
|
|
|
/* Initialize relevant SLI info */
|
|
for (i = 0; i < phba->sli.num_rings; i++) {
|
|
pring = &phba->sli.ring[i];
|
|
pring->flag = 0;
|
|
pring->rspidx = 0;
|
|
pring->next_cmdidx = 0;
|
|
pring->local_getidx = 0;
|
|
pring->cmdidx = 0;
|
|
pring->missbufcnt = 0;
|
|
}
|
|
spin_unlock_irqrestore(phba->host->host_lock, flags);
|
|
|
|
if (skip_post) {
|
|
mdelay(100);
|
|
} else {
|
|
mdelay(2000);
|
|
}
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, flags);
|
|
/* Cleanup preposted buffers on the ELS ring */
|
|
pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
|
|
list_del(&mp->list);
|
|
pring->postbufq_cnt--;
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
spin_unlock_irqrestore(phba->host->host_lock, flags);
|
|
|
|
for (i = 0; i < phba->sli.num_rings; i++)
|
|
lpfc_sli_abort_iocb_ring(phba, &phba->sli.ring[i]);
|
|
|
|
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) {
|
|
lpfc_sli_brdreset(phba, 0);
|
|
}
|
|
/* 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) {
|
|
phba->hba_state = 0;
|
|
lpfc_sli_brdreset(phba, 0);
|
|
msleep(2500);
|
|
rc = lpfc_sli_chipset_init(phba);
|
|
if (rc)
|
|
break;
|
|
|
|
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;
|
|
}
|
|
|
|
static void
|
|
lpfc_mbox_abort(struct lpfc_hba * phba)
|
|
{
|
|
LPFC_MBOXQ_t *pmbox;
|
|
MAILBOX_t *mb;
|
|
|
|
if (phba->sli.mbox_active) {
|
|
del_timer_sync(&phba->sli.mbox_tmo);
|
|
phba->work_hba_events &= ~WORKER_MBOX_TMO;
|
|
pmbox = phba->sli.mbox_active;
|
|
mb = &pmbox->mb;
|
|
phba->sli.mbox_active = NULL;
|
|
if (pmbox->mbox_cmpl) {
|
|
mb->mbxStatus = MBX_NOT_FINISHED;
|
|
(pmbox->mbox_cmpl) (phba, pmbox);
|
|
}
|
|
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
}
|
|
|
|
/* Abort all the non active mailbox commands. */
|
|
spin_lock_irq(phba->host->host_lock);
|
|
pmbox = lpfc_mbox_get(phba);
|
|
while (pmbox) {
|
|
mb = &pmbox->mb;
|
|
if (pmbox->mbox_cmpl) {
|
|
mb->mbxStatus = MBX_NOT_FINISHED;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
(pmbox->mbox_cmpl) (phba, pmbox);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
}
|
|
pmbox = lpfc_mbox_get(phba);
|
|
}
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return;
|
|
}
|
|
|
|
/*! 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;
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
if (!(phba->work_hba_events & WORKER_MBOX_TMO)) {
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return;
|
|
}
|
|
|
|
phba->work_hba_events &= ~WORKER_MBOX_TMO;
|
|
|
|
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);
|
|
|
|
phba->sli.mbox_active = NULL;
|
|
if (pmbox->mbox_cmpl) {
|
|
mb->mbxStatus = MBX_NOT_FINISHED;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
(pmbox->mbox_cmpl) (phba, pmbox);
|
|
spin_lock_irq(phba->host->host_lock);
|
|
}
|
|
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
lpfc_mbox_abort(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;
|
|
|
|
psli = &phba->sli;
|
|
|
|
spin_lock_irqsave(phba->host->host_lock, drvr_flag);
|
|
|
|
|
|
mb = &pmbox->mb;
|
|
status = MBX_SUCCESS;
|
|
|
|
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)) {
|
|
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);
|
|
}
|
|
|
|
/* 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:
|
|
i = 0;
|
|
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);
|
|
|
|
/* Wait for command to complete */
|
|
while (((word0 & OWN_CHIP) == OWN_CHIP)
|
|
|| !(ha_copy & HA_MBATT)) {
|
|
if (i++ >= 100) {
|
|
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);
|
|
|
|
/* Can be in interrupt context, do not sleep */
|
|
/* (or might be called with interrupts disabled) */
|
|
mdelay(i);
|
|
|
|
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;
|
|
|
|
/*
|
|
* 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;
|
|
|
|
/*
|
|
* Check to see if this is a high priority command.
|
|
* If so bypass tx queue processing.
|
|
*/
|
|
if (unlikely((flag & SLI_IOCB_HIGH_PRIORITY) &&
|
|
(iocb = lpfc_sli_next_iocb_slot(phba, pring)))) {
|
|
lpfc_sli_submit_iocb(phba, pring, iocb, piocb);
|
|
piocb = NULL;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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->ip_ring = LPFC_IP_RING;
|
|
|
|
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_IP_RING: /* ring 1 - IP */
|
|
/* 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);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_queue_setup(struct lpfc_hba * phba)
|
|
{
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_sli_ring *pring;
|
|
int i, cnt;
|
|
|
|
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);
|
|
cnt = pring->fast_iotag;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
if (cnt) {
|
|
pring->fast_lookup =
|
|
kmalloc(cnt * sizeof (struct lpfc_iocbq *),
|
|
GFP_KERNEL);
|
|
if (pring->fast_lookup == 0) {
|
|
return (0);
|
|
}
|
|
memset((char *)pring->fast_lookup, 0,
|
|
cnt * sizeof (struct lpfc_iocbq *));
|
|
}
|
|
spin_lock_irq(phba->host->host_lock);
|
|
}
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
lpfc_sli_hba_down(struct lpfc_hba * phba)
|
|
{
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_sli_ring *pring;
|
|
LPFC_MBOXQ_t *pmb;
|
|
struct lpfc_iocbq *iocb, *next_iocb;
|
|
IOCB_t *icmd = 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.
|
|
*/
|
|
pring->txq_cnt = 0;
|
|
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
|
|
list_del_init(&iocb->list);
|
|
if (iocb->iocb_cmpl) {
|
|
icmd = &iocb->iocb;
|
|
icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
|
|
icmd->un.ulpWord[4] = IOERR_SLI_DOWN;
|
|
spin_unlock_irqrestore(phba->host->host_lock,
|
|
flags);
|
|
(iocb->iocb_cmpl) (phba, iocb, iocb);
|
|
spin_lock_irqsave(phba->host->host_lock, flags);
|
|
} else {
|
|
list_add_tail(&iocb->list,
|
|
&phba->lpfc_iocb_list);
|
|
}
|
|
}
|
|
|
|
INIT_LIST_HEAD(&(pring->txq));
|
|
|
|
if (pring->fast_lookup) {
|
|
kfree(pring->fast_lookup);
|
|
pring->fast_lookup = NULL;
|
|
}
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(phba->host->host_lock, flags);
|
|
|
|
/* 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);
|
|
|
|
/*
|
|
* Provided the hba is not in an error state, reset it. It is not
|
|
* capable of IO anymore.
|
|
*/
|
|
if (phba->hba_state != LPFC_HBA_ERROR) {
|
|
phba->hba_state = LPFC_INIT_START;
|
|
lpfc_sli_brdreset(phba, 1);
|
|
}
|
|
|
|
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_elsreq_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
|
|
struct lpfc_iocbq * rspiocb)
|
|
{
|
|
struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
|
|
/* Free the resources associated with the ELS_REQUEST64 IOCB the driver
|
|
* just aborted.
|
|
* In this case, context2 = cmd, context2->next = rsp, context3 = bpl
|
|
*/
|
|
if (cmdiocb->context2) {
|
|
buf_ptr1 = (struct lpfc_dmabuf *) cmdiocb->context2;
|
|
|
|
/* Free the response IOCB before completing the abort
|
|
command. */
|
|
buf_ptr = NULL;
|
|
list_remove_head((&buf_ptr1->list), buf_ptr,
|
|
struct lpfc_dmabuf, list);
|
|
if (buf_ptr) {
|
|
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
|
|
kfree(buf_ptr);
|
|
}
|
|
lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
|
|
kfree(buf_ptr1);
|
|
}
|
|
|
|
if (cmdiocb->context3) {
|
|
buf_ptr = (struct lpfc_dmabuf *) cmdiocb->context3;
|
|
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
|
|
kfree(buf_ptr);
|
|
}
|
|
|
|
list_add_tail(&cmdiocb->list, &phba->lpfc_iocb_list);
|
|
return;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba,
|
|
struct lpfc_sli_ring * pring,
|
|
struct lpfc_iocbq * cmdiocb)
|
|
{
|
|
struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
|
|
struct lpfc_iocbq *abtsiocbp = NULL;
|
|
IOCB_t *icmd = NULL;
|
|
IOCB_t *iabt = NULL;
|
|
|
|
/* issue ABTS for this IOCB based on iotag */
|
|
list_remove_head(lpfc_iocb_list, abtsiocbp, struct lpfc_iocbq, list);
|
|
if (abtsiocbp == NULL)
|
|
return 0;
|
|
memset(abtsiocbp, 0, sizeof (struct lpfc_iocbq));
|
|
|
|
iabt = &abtsiocbp->iocb;
|
|
icmd = &cmdiocb->iocb;
|
|
switch (icmd->ulpCommand) {
|
|
case CMD_ELS_REQUEST64_CR:
|
|
/* Even though we abort the ELS command, the firmware may access
|
|
* the BPL or other resources before it processes our
|
|
* ABORT_MXRI64. Thus we must delay reusing the cmdiocb
|
|
* resources till the actual abort request completes.
|
|
*/
|
|
abtsiocbp->context1 = (void *)((unsigned long)icmd->ulpCommand);
|
|
abtsiocbp->context2 = cmdiocb->context2;
|
|
abtsiocbp->context3 = cmdiocb->context3;
|
|
cmdiocb->context2 = NULL;
|
|
cmdiocb->context3 = NULL;
|
|
abtsiocbp->iocb_cmpl = lpfc_sli_abort_elsreq_cmpl;
|
|
break;
|
|
default:
|
|
list_add_tail(&abtsiocbp->list, lpfc_iocb_list);
|
|
return 0;
|
|
}
|
|
|
|
iabt->un.amxri.abortType = ABORT_TYPE_ABTS;
|
|
iabt->un.amxri.iotag32 = icmd->un.elsreq64.bdl.ulpIoTag32;
|
|
|
|
iabt->ulpLe = 1;
|
|
iabt->ulpClass = CLASS3;
|
|
iabt->ulpCommand = CMD_ABORT_MXRI64_CN;
|
|
|
|
if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) == IOCB_ERROR) {
|
|
list_add_tail(&abtsiocbp->list, lpfc_iocb_list);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lpfc_sli_validate_iocb_cmd(struct lpfc_scsi_buf *lpfc_cmd, uint16_t tgt_id,
|
|
uint64_t lun_id, struct lpfc_iocbq *iocb,
|
|
uint32_t ctx, lpfc_ctx_cmd ctx_cmd)
|
|
{
|
|
int rc = 1;
|
|
|
|
if (lpfc_cmd == NULL)
|
|
return rc;
|
|
|
|
switch (ctx_cmd) {
|
|
case LPFC_CTX_LUN:
|
|
if ((lpfc_cmd->pCmd->device->id == tgt_id) &&
|
|
(lpfc_cmd->pCmd->device->lun == lun_id))
|
|
rc = 0;
|
|
break;
|
|
case LPFC_CTX_TGT:
|
|
if (lpfc_cmd->pCmd->device->id == tgt_id)
|
|
rc = 0;
|
|
break;
|
|
case LPFC_CTX_CTX:
|
|
if (iocb->iocb.ulpContext == ctx)
|
|
rc = 0;
|
|
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 *iocb, *next_iocb;
|
|
IOCB_t *cmd = NULL;
|
|
struct lpfc_scsi_buf *lpfc_cmd;
|
|
int sum = 0, ret_val = 0;
|
|
|
|
/* Next check the txcmplq */
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
|
|
cmd = &iocb->iocb;
|
|
|
|
/* Must be a FCP command */
|
|
if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
|
|
(cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
|
|
(cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
|
|
continue;
|
|
}
|
|
|
|
/* context1 MUST be a struct lpfc_scsi_buf */
|
|
lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
|
|
ret_val = lpfc_sli_validate_iocb_cmd(lpfc_cmd, tgt_id, lun_id,
|
|
NULL, 0, ctx_cmd);
|
|
if (ret_val != 0)
|
|
continue;
|
|
sum++;
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
void
|
|
lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
|
|
struct lpfc_iocbq * rspiocb)
|
|
{
|
|
spin_lock_irq(phba->host->host_lock);
|
|
list_add_tail(&cmdiocb->list, &phba->lpfc_iocb_list);
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
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 *iocb, *next_iocb;
|
|
struct lpfc_iocbq *abtsiocb = NULL;
|
|
struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
|
|
IOCB_t *cmd = NULL;
|
|
struct lpfc_scsi_buf *lpfc_cmd;
|
|
int errcnt = 0, ret_val = 0;
|
|
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
|
|
cmd = &iocb->iocb;
|
|
|
|
/* Must be a FCP command */
|
|
if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
|
|
(cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
|
|
(cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
|
|
continue;
|
|
}
|
|
|
|
/* context1 MUST be a struct lpfc_scsi_buf */
|
|
lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
|
|
ret_val = lpfc_sli_validate_iocb_cmd(lpfc_cmd, tgt_id, lun_id,
|
|
iocb, ctx, abort_cmd);
|
|
if (ret_val != 0)
|
|
continue;
|
|
|
|
/* issue ABTS for this IOCB based on iotag */
|
|
list_remove_head(lpfc_iocb_list, abtsiocb, struct lpfc_iocbq,
|
|
list);
|
|
if (abtsiocb == NULL) {
|
|
errcnt++;
|
|
continue;
|
|
}
|
|
memset(abtsiocb, 0, sizeof (struct lpfc_iocbq));
|
|
|
|
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) {
|
|
list_add_tail(&abtsiocb->list, lpfc_iocb_list);
|
|
errcnt++;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
return errcnt;
|
|
}
|
|
|
|
void
|
|
lpfc_sli_wake_iocb_high_priority(struct lpfc_hba * phba,
|
|
struct lpfc_iocbq * queue1,
|
|
struct lpfc_iocbq * queue2)
|
|
{
|
|
if (queue1->context2 && queue2)
|
|
memcpy(queue1->context2, queue2, sizeof (struct lpfc_iocbq));
|
|
|
|
/* The waiter is looking for LPFC_IO_HIPRI bit to be set
|
|
as a signal to wake up */
|
|
queue1->iocb_flag |= LPFC_IO_HIPRI;
|
|
return;
|
|
}
|
|
|
|
int
|
|
lpfc_sli_issue_iocb_wait_high_priority(struct lpfc_hba * phba,
|
|
struct lpfc_sli_ring * pring,
|
|
struct lpfc_iocbq * piocb,
|
|
uint32_t flag,
|
|
struct lpfc_iocbq * prspiocbq,
|
|
uint32_t timeout)
|
|
{
|
|
int j, delay_time, retval = IOCB_ERROR;
|
|
|
|
/* The caller must left context1 empty. */
|
|
if (piocb->context_un.hipri_wait_queue != 0) {
|
|
return IOCB_ERROR;
|
|
}
|
|
|
|
/*
|
|
* If the caller has provided a response iocbq buffer, context2 must
|
|
* be NULL or its an error.
|
|
*/
|
|
if (prspiocbq && piocb->context2) {
|
|
return IOCB_ERROR;
|
|
}
|
|
|
|
piocb->context2 = prspiocbq;
|
|
|
|
/* Setup callback routine and issue the command. */
|
|
piocb->iocb_cmpl = lpfc_sli_wake_iocb_high_priority;
|
|
retval = lpfc_sli_issue_iocb(phba, pring, piocb,
|
|
flag | SLI_IOCB_HIGH_PRIORITY);
|
|
if (retval != IOCB_SUCCESS) {
|
|
piocb->context2 = NULL;
|
|
return IOCB_ERROR;
|
|
}
|
|
|
|
/*
|
|
* This high-priority iocb was sent out-of-band. Poll for its
|
|
* completion rather than wait for a signal. Note that the host_lock
|
|
* is held by the midlayer and must be released here to allow the
|
|
* interrupt handlers to complete the IO and signal this routine via
|
|
* the iocb_flag.
|
|
* Also, the delay_time is computed to be one second longer than
|
|
* the scsi command timeout to give the FW time to abort on
|
|
* timeout rather than the driver just giving up. Typically,
|
|
* the midlayer does not specify a time for this command so the
|
|
* driver is free to enforce its own timeout.
|
|
*/
|
|
|
|
delay_time = ((timeout + 1) * 1000) >> 6;
|
|
retval = IOCB_ERROR;
|
|
spin_unlock_irq(phba->host->host_lock);
|
|
for (j = 0; j < 64; j++) {
|
|
msleep(delay_time);
|
|
if (piocb->iocb_flag & LPFC_IO_HIPRI) {
|
|
piocb->iocb_flag &= ~LPFC_IO_HIPRI;
|
|
retval = IOCB_SUCCESS;
|
|
break;
|
|
}
|
|
}
|
|
|
|
spin_lock_irq(phba->host->host_lock);
|
|
piocb->context2 = NULL;
|
|
return retval;
|
|
}
|
|
int
|
|
lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq,
|
|
uint32_t timeout)
|
|
{
|
|
DECLARE_WAIT_QUEUE_HEAD(done_q);
|
|
DECLARE_WAITQUEUE(wq_entry, current);
|
|
uint32_t timeleft = 0;
|
|
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;
|
|
|
|
/* start to sleep before we wait, to avoid races */
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
add_wait_queue(&done_q, &wq_entry);
|
|
|
|
/* now issue the command */
|
|
retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
|
|
|
|
if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
|
|
timeleft = schedule_timeout(timeout * HZ);
|
|
pmboxq->context1 = NULL;
|
|
/* if schedule_timeout returns 0, we timed out and were not
|
|
woken up */
|
|
if (timeleft == 0) {
|
|
retval = MBX_TIMEOUT;
|
|
} else {
|
|
retval = MBX_SUCCESS;
|
|
}
|
|
}
|
|
|
|
|
|
set_current_state(TASK_RUNNING);
|
|
remove_wait_queue(&done_q, &wq_entry);
|
|
return retval;
|
|
}
|
|
|
|
irqreturn_t
|
|
lpfc_intr_handler(int irq, void *dev_id, struct pt_regs * regs)
|
|
{
|
|
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;
|
|
|
|
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 */
|
|
|
|
/*
|
|
* Reseting the HBA is the only reliable way
|
|
* to shutdown interrupt when there is a
|
|
* ERROR.
|
|
*/
|
|
lpfc_sli_send_reset(phba, phba->hba_state);
|
|
}
|
|
|
|
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);
|
|
return IRQ_HANDLED;
|
|
|
|
} /* lpfc_intr_handler */
|