3192 lines
94 KiB
C
3192 lines
94 KiB
C
/*******************************************************************
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* This file is part of the Emulex Linux Device Driver for *
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* Fibre Channsel Host Bus Adapters. *
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* Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term *
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* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
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* Copyright (C) 2004-2016 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.broadcom.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/pci.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <asm/unaligned.h>
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#include <linux/crc-t10dif.h>
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#include <net/checksum.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_eh.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_tcq.h>
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#include <scsi/scsi_transport_fc.h>
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#include <scsi/fc/fc_fs.h>
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#include <linux/nvme.h>
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#include <linux/nvme-fc-driver.h>
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#include <linux/nvme-fc.h>
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#include "lpfc_version.h"
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#include "lpfc_hw4.h"
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#include "lpfc_hw.h"
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#include "lpfc_sli.h"
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#include "lpfc_sli4.h"
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#include "lpfc_nl.h"
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#include "lpfc_disc.h"
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#include "lpfc.h"
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#include "lpfc_scsi.h"
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#include "lpfc_nvme.h"
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#include "lpfc_nvmet.h"
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#include "lpfc_logmsg.h"
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#include "lpfc_crtn.h"
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#include "lpfc_vport.h"
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#include "lpfc_debugfs.h"
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static struct lpfc_iocbq *lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *,
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struct lpfc_nvmet_rcv_ctx *,
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dma_addr_t rspbuf,
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uint16_t rspsize);
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static struct lpfc_iocbq *lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *,
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struct lpfc_nvmet_rcv_ctx *);
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static int lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *,
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struct lpfc_nvmet_rcv_ctx *,
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uint32_t, uint16_t);
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static int lpfc_nvmet_unsol_fcp_issue_abort(struct lpfc_hba *,
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struct lpfc_nvmet_rcv_ctx *,
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uint32_t, uint16_t);
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static int lpfc_nvmet_unsol_ls_issue_abort(struct lpfc_hba *,
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struct lpfc_nvmet_rcv_ctx *,
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uint32_t, uint16_t);
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static void lpfc_nvmet_wqfull_flush(struct lpfc_hba *, struct lpfc_queue *,
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struct lpfc_nvmet_rcv_ctx *);
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static union lpfc_wqe128 lpfc_tsend_cmd_template;
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static union lpfc_wqe128 lpfc_treceive_cmd_template;
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static union lpfc_wqe128 lpfc_trsp_cmd_template;
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/* Setup WQE templates for NVME IOs */
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void
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lpfc_nvmet_cmd_template(void)
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{
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union lpfc_wqe128 *wqe;
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/* TSEND template */
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wqe = &lpfc_tsend_cmd_template;
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memset(wqe, 0, sizeof(union lpfc_wqe128));
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/* Word 0, 1, 2 - BDE is variable */
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/* Word 3 - payload_offset_len is zero */
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/* Word 4 - relative_offset is variable */
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/* Word 5 - is zero */
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/* Word 6 - ctxt_tag, xri_tag is variable */
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/* Word 7 - wqe_ar is variable */
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bf_set(wqe_cmnd, &wqe->fcp_tsend.wqe_com, CMD_FCP_TSEND64_WQE);
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bf_set(wqe_pu, &wqe->fcp_tsend.wqe_com, PARM_REL_OFF);
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bf_set(wqe_class, &wqe->fcp_tsend.wqe_com, CLASS3);
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bf_set(wqe_ct, &wqe->fcp_tsend.wqe_com, SLI4_CT_RPI);
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bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 1);
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/* Word 8 - abort_tag is variable */
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/* Word 9 - reqtag, rcvoxid is variable */
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/* Word 10 - wqes, xc is variable */
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bf_set(wqe_nvme, &wqe->fcp_tsend.wqe_com, 1);
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bf_set(wqe_dbde, &wqe->fcp_tsend.wqe_com, 1);
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bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 0);
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bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 1);
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bf_set(wqe_iod, &wqe->fcp_tsend.wqe_com, LPFC_WQE_IOD_WRITE);
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bf_set(wqe_lenloc, &wqe->fcp_tsend.wqe_com, LPFC_WQE_LENLOC_WORD12);
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/* Word 11 - sup, irsp, irsplen is variable */
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bf_set(wqe_cmd_type, &wqe->fcp_tsend.wqe_com, FCP_COMMAND_TSEND);
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bf_set(wqe_cqid, &wqe->fcp_tsend.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
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bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0);
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bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 0);
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bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com, 0);
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bf_set(wqe_pbde, &wqe->fcp_tsend.wqe_com, 0);
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/* Word 12 - fcp_data_len is variable */
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/* Word 13, 14, 15 - PBDE is zero */
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/* TRECEIVE template */
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wqe = &lpfc_treceive_cmd_template;
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memset(wqe, 0, sizeof(union lpfc_wqe128));
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/* Word 0, 1, 2 - BDE is variable */
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/* Word 3 */
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wqe->fcp_treceive.payload_offset_len = TXRDY_PAYLOAD_LEN;
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/* Word 4 - relative_offset is variable */
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/* Word 5 - is zero */
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/* Word 6 - ctxt_tag, xri_tag is variable */
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/* Word 7 */
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bf_set(wqe_cmnd, &wqe->fcp_treceive.wqe_com, CMD_FCP_TRECEIVE64_WQE);
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bf_set(wqe_pu, &wqe->fcp_treceive.wqe_com, PARM_REL_OFF);
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bf_set(wqe_class, &wqe->fcp_treceive.wqe_com, CLASS3);
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bf_set(wqe_ct, &wqe->fcp_treceive.wqe_com, SLI4_CT_RPI);
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bf_set(wqe_ar, &wqe->fcp_treceive.wqe_com, 0);
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/* Word 8 - abort_tag is variable */
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/* Word 9 - reqtag, rcvoxid is variable */
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/* Word 10 - xc is variable */
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bf_set(wqe_dbde, &wqe->fcp_treceive.wqe_com, 1);
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bf_set(wqe_wqes, &wqe->fcp_treceive.wqe_com, 0);
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bf_set(wqe_nvme, &wqe->fcp_treceive.wqe_com, 1);
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bf_set(wqe_iod, &wqe->fcp_treceive.wqe_com, LPFC_WQE_IOD_READ);
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bf_set(wqe_lenloc, &wqe->fcp_treceive.wqe_com, LPFC_WQE_LENLOC_WORD12);
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bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 1);
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/* Word 11 - pbde is variable */
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bf_set(wqe_cmd_type, &wqe->fcp_treceive.wqe_com, FCP_COMMAND_TRECEIVE);
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bf_set(wqe_cqid, &wqe->fcp_treceive.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
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bf_set(wqe_sup, &wqe->fcp_treceive.wqe_com, 0);
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bf_set(wqe_irsp, &wqe->fcp_treceive.wqe_com, 0);
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bf_set(wqe_irsplen, &wqe->fcp_treceive.wqe_com, 0);
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bf_set(wqe_pbde, &wqe->fcp_treceive.wqe_com, 1);
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/* Word 12 - fcp_data_len is variable */
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/* Word 13, 14, 15 - PBDE is variable */
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/* TRSP template */
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wqe = &lpfc_trsp_cmd_template;
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memset(wqe, 0, sizeof(union lpfc_wqe128));
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/* Word 0, 1, 2 - BDE is variable */
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/* Word 3 - response_len is variable */
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/* Word 4, 5 - is zero */
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/* Word 6 - ctxt_tag, xri_tag is variable */
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/* Word 7 */
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bf_set(wqe_cmnd, &wqe->fcp_trsp.wqe_com, CMD_FCP_TRSP64_WQE);
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bf_set(wqe_pu, &wqe->fcp_trsp.wqe_com, PARM_UNUSED);
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bf_set(wqe_class, &wqe->fcp_trsp.wqe_com, CLASS3);
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bf_set(wqe_ct, &wqe->fcp_trsp.wqe_com, SLI4_CT_RPI);
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bf_set(wqe_ag, &wqe->fcp_trsp.wqe_com, 1); /* wqe_ar */
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/* Word 8 - abort_tag is variable */
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/* Word 9 - reqtag is variable */
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/* Word 10 wqes, xc is variable */
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bf_set(wqe_dbde, &wqe->fcp_trsp.wqe_com, 1);
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bf_set(wqe_nvme, &wqe->fcp_trsp.wqe_com, 1);
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bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 0);
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bf_set(wqe_xc, &wqe->fcp_trsp.wqe_com, 0);
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bf_set(wqe_iod, &wqe->fcp_trsp.wqe_com, LPFC_WQE_IOD_NONE);
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bf_set(wqe_lenloc, &wqe->fcp_trsp.wqe_com, LPFC_WQE_LENLOC_WORD3);
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/* Word 11 irsp, irsplen is variable */
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bf_set(wqe_cmd_type, &wqe->fcp_trsp.wqe_com, FCP_COMMAND_TRSP);
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bf_set(wqe_cqid, &wqe->fcp_trsp.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
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bf_set(wqe_sup, &wqe->fcp_trsp.wqe_com, 0);
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bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 0);
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bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com, 0);
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bf_set(wqe_pbde, &wqe->fcp_trsp.wqe_com, 0);
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/* Word 12, 13, 14, 15 - is zero */
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}
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void
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lpfc_nvmet_defer_release(struct lpfc_hba *phba, struct lpfc_nvmet_rcv_ctx *ctxp)
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{
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unsigned long iflag;
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lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
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"6313 NVMET Defer ctx release xri x%x flg x%x\n",
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ctxp->oxid, ctxp->flag);
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spin_lock_irqsave(&phba->sli4_hba.abts_nvme_buf_list_lock, iflag);
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if (ctxp->flag & LPFC_NVMET_CTX_RLS) {
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spin_unlock_irqrestore(&phba->sli4_hba.abts_nvme_buf_list_lock,
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iflag);
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return;
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}
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ctxp->flag |= LPFC_NVMET_CTX_RLS;
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list_add_tail(&ctxp->list, &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
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spin_unlock_irqrestore(&phba->sli4_hba.abts_nvme_buf_list_lock, iflag);
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}
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/**
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* lpfc_nvmet_xmt_ls_rsp_cmp - Completion handler for LS Response
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* @phba: Pointer to HBA context object.
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* @cmdwqe: Pointer to driver command WQE object.
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* @wcqe: Pointer to driver response CQE object.
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*
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* The function is called from SLI ring event handler with no
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* lock held. This function is the completion handler for NVME LS commands
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* The function frees memory resources used for the NVME commands.
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**/
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static void
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lpfc_nvmet_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
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struct lpfc_wcqe_complete *wcqe)
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{
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struct lpfc_nvmet_tgtport *tgtp;
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struct nvmefc_tgt_ls_req *rsp;
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struct lpfc_nvmet_rcv_ctx *ctxp;
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uint32_t status, result;
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status = bf_get(lpfc_wcqe_c_status, wcqe);
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result = wcqe->parameter;
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ctxp = cmdwqe->context2;
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if (ctxp->state != LPFC_NVMET_STE_LS_RSP || ctxp->entry_cnt != 2) {
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lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
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"6410 NVMET LS cmpl state mismatch IO x%x: "
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"%d %d\n",
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ctxp->oxid, ctxp->state, ctxp->entry_cnt);
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}
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if (!phba->targetport)
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goto out;
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tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
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if (tgtp) {
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if (status) {
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atomic_inc(&tgtp->xmt_ls_rsp_error);
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if (result == IOERR_ABORT_REQUESTED)
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atomic_inc(&tgtp->xmt_ls_rsp_aborted);
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if (bf_get(lpfc_wcqe_c_xb, wcqe))
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atomic_inc(&tgtp->xmt_ls_rsp_xb_set);
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} else {
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atomic_inc(&tgtp->xmt_ls_rsp_cmpl);
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}
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}
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out:
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rsp = &ctxp->ctx.ls_req;
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lpfc_nvmeio_data(phba, "NVMET LS CMPL: xri x%x stat x%x result x%x\n",
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ctxp->oxid, status, result);
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lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
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"6038 NVMET LS rsp cmpl: %d %d oxid x%x\n",
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status, result, ctxp->oxid);
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lpfc_nlp_put(cmdwqe->context1);
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cmdwqe->context2 = NULL;
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cmdwqe->context3 = NULL;
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lpfc_sli_release_iocbq(phba, cmdwqe);
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rsp->done(rsp);
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kfree(ctxp);
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}
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/**
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* lpfc_nvmet_ctxbuf_post - Repost a NVMET RQ DMA buffer and clean up context
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* @phba: HBA buffer is associated with
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* @ctxp: context to clean up
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* @mp: Buffer to free
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*
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* Description: Frees the given DMA buffer in the appropriate way given by
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* reposting it to its associated RQ so it can be reused.
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*
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* Notes: Takes phba->hbalock. Can be called with or without other locks held.
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*
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* Returns: None
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**/
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void
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lpfc_nvmet_ctxbuf_post(struct lpfc_hba *phba, struct lpfc_nvmet_ctxbuf *ctx_buf)
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{
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#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
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struct lpfc_nvmet_rcv_ctx *ctxp = ctx_buf->context;
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struct lpfc_nvmet_tgtport *tgtp;
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struct fc_frame_header *fc_hdr;
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struct rqb_dmabuf *nvmebuf;
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struct lpfc_nvmet_ctx_info *infop;
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uint32_t *payload;
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uint32_t size, oxid, sid, rc;
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int cpu;
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unsigned long iflag;
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if (ctxp->txrdy) {
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dma_pool_free(phba->txrdy_payload_pool, ctxp->txrdy,
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ctxp->txrdy_phys);
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ctxp->txrdy = NULL;
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ctxp->txrdy_phys = 0;
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}
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if (ctxp->state == LPFC_NVMET_STE_FREE) {
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lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
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"6411 NVMET free, already free IO x%x: %d %d\n",
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ctxp->oxid, ctxp->state, ctxp->entry_cnt);
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}
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ctxp->state = LPFC_NVMET_STE_FREE;
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spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
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if (phba->sli4_hba.nvmet_io_wait_cnt) {
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list_remove_head(&phba->sli4_hba.lpfc_nvmet_io_wait_list,
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nvmebuf, struct rqb_dmabuf,
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hbuf.list);
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phba->sli4_hba.nvmet_io_wait_cnt--;
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spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
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iflag);
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fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
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oxid = be16_to_cpu(fc_hdr->fh_ox_id);
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tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
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payload = (uint32_t *)(nvmebuf->dbuf.virt);
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size = nvmebuf->bytes_recv;
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sid = sli4_sid_from_fc_hdr(fc_hdr);
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ctxp = (struct lpfc_nvmet_rcv_ctx *)ctx_buf->context;
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ctxp->wqeq = NULL;
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ctxp->txrdy = NULL;
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ctxp->offset = 0;
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ctxp->phba = phba;
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ctxp->size = size;
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ctxp->oxid = oxid;
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ctxp->sid = sid;
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ctxp->state = LPFC_NVMET_STE_RCV;
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ctxp->entry_cnt = 1;
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ctxp->flag = 0;
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ctxp->ctxbuf = ctx_buf;
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ctxp->rqb_buffer = (void *)nvmebuf;
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spin_lock_init(&ctxp->ctxlock);
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#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
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if (ctxp->ts_cmd_nvme) {
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ctxp->ts_cmd_nvme = ktime_get_ns();
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ctxp->ts_nvme_data = 0;
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ctxp->ts_data_wqput = 0;
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ctxp->ts_isr_data = 0;
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ctxp->ts_data_nvme = 0;
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ctxp->ts_nvme_status = 0;
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|
ctxp->ts_status_wqput = 0;
|
|
ctxp->ts_isr_status = 0;
|
|
ctxp->ts_status_nvme = 0;
|
|
}
|
|
#endif
|
|
atomic_inc(&tgtp->rcv_fcp_cmd_in);
|
|
/*
|
|
* The calling sequence should be:
|
|
* nvmet_fc_rcv_fcp_req->lpfc_nvmet_xmt_fcp_op/cmp- req->done
|
|
* lpfc_nvmet_xmt_fcp_op_cmp should free the allocated ctxp.
|
|
* When we return from nvmet_fc_rcv_fcp_req, all relevant info
|
|
* the NVME command / FC header is stored.
|
|
* A buffer has already been reposted for this IO, so just free
|
|
* the nvmebuf.
|
|
*/
|
|
rc = nvmet_fc_rcv_fcp_req(phba->targetport, &ctxp->ctx.fcp_req,
|
|
payload, size);
|
|
|
|
/* Process FCP command */
|
|
if (rc == 0) {
|
|
ctxp->rqb_buffer = NULL;
|
|
atomic_inc(&tgtp->rcv_fcp_cmd_out);
|
|
nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf);
|
|
return;
|
|
}
|
|
|
|
/* Processing of FCP command is deferred */
|
|
if (rc == -EOVERFLOW) {
|
|
lpfc_nvmeio_data(phba,
|
|
"NVMET RCV BUSY: xri x%x sz %d "
|
|
"from %06x\n",
|
|
oxid, size, sid);
|
|
atomic_inc(&tgtp->rcv_fcp_cmd_out);
|
|
return;
|
|
}
|
|
atomic_inc(&tgtp->rcv_fcp_cmd_drop);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"2582 FCP Drop IO x%x: err x%x: x%x x%x x%x\n",
|
|
ctxp->oxid, rc,
|
|
atomic_read(&tgtp->rcv_fcp_cmd_in),
|
|
atomic_read(&tgtp->rcv_fcp_cmd_out),
|
|
atomic_read(&tgtp->xmt_fcp_release));
|
|
|
|
lpfc_nvmet_defer_release(phba, ctxp);
|
|
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid);
|
|
nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf);
|
|
return;
|
|
}
|
|
spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
|
|
|
|
/*
|
|
* Use the CPU context list, from the MRQ the IO was received on
|
|
* (ctxp->idx), to save context structure.
|
|
*/
|
|
cpu = smp_processor_id();
|
|
infop = lpfc_get_ctx_list(phba, cpu, ctxp->idx);
|
|
spin_lock_irqsave(&infop->nvmet_ctx_list_lock, iflag);
|
|
list_add_tail(&ctx_buf->list, &infop->nvmet_ctx_list);
|
|
infop->nvmet_ctx_list_cnt++;
|
|
spin_unlock_irqrestore(&infop->nvmet_ctx_list_lock, iflag);
|
|
#endif
|
|
}
|
|
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
static void
|
|
lpfc_nvmet_ktime(struct lpfc_hba *phba,
|
|
struct lpfc_nvmet_rcv_ctx *ctxp)
|
|
{
|
|
uint64_t seg1, seg2, seg3, seg4, seg5;
|
|
uint64_t seg6, seg7, seg8, seg9, seg10;
|
|
uint64_t segsum;
|
|
|
|
if (!ctxp->ts_isr_cmd || !ctxp->ts_cmd_nvme ||
|
|
!ctxp->ts_nvme_data || !ctxp->ts_data_wqput ||
|
|
!ctxp->ts_isr_data || !ctxp->ts_data_nvme ||
|
|
!ctxp->ts_nvme_status || !ctxp->ts_status_wqput ||
|
|
!ctxp->ts_isr_status || !ctxp->ts_status_nvme)
|
|
return;
|
|
|
|
if (ctxp->ts_status_nvme < ctxp->ts_isr_cmd)
|
|
return;
|
|
if (ctxp->ts_isr_cmd > ctxp->ts_cmd_nvme)
|
|
return;
|
|
if (ctxp->ts_cmd_nvme > ctxp->ts_nvme_data)
|
|
return;
|
|
if (ctxp->ts_nvme_data > ctxp->ts_data_wqput)
|
|
return;
|
|
if (ctxp->ts_data_wqput > ctxp->ts_isr_data)
|
|
return;
|
|
if (ctxp->ts_isr_data > ctxp->ts_data_nvme)
|
|
return;
|
|
if (ctxp->ts_data_nvme > ctxp->ts_nvme_status)
|
|
return;
|
|
if (ctxp->ts_nvme_status > ctxp->ts_status_wqput)
|
|
return;
|
|
if (ctxp->ts_status_wqput > ctxp->ts_isr_status)
|
|
return;
|
|
if (ctxp->ts_isr_status > ctxp->ts_status_nvme)
|
|
return;
|
|
/*
|
|
* Segment 1 - Time from FCP command received by MSI-X ISR
|
|
* to FCP command is passed to NVME Layer.
|
|
* Segment 2 - Time from FCP command payload handed
|
|
* off to NVME Layer to Driver receives a Command op
|
|
* from NVME Layer.
|
|
* Segment 3 - Time from Driver receives a Command op
|
|
* from NVME Layer to Command is put on WQ.
|
|
* Segment 4 - Time from Driver WQ put is done
|
|
* to MSI-X ISR for Command cmpl.
|
|
* Segment 5 - Time from MSI-X ISR for Command cmpl to
|
|
* Command cmpl is passed to NVME Layer.
|
|
* Segment 6 - Time from Command cmpl is passed to NVME
|
|
* Layer to Driver receives a RSP op from NVME Layer.
|
|
* Segment 7 - Time from Driver receives a RSP op from
|
|
* NVME Layer to WQ put is done on TRSP FCP Status.
|
|
* Segment 8 - Time from Driver WQ put is done on TRSP
|
|
* FCP Status to MSI-X ISR for TRSP cmpl.
|
|
* Segment 9 - Time from MSI-X ISR for TRSP cmpl to
|
|
* TRSP cmpl is passed to NVME Layer.
|
|
* Segment 10 - Time from FCP command received by
|
|
* MSI-X ISR to command is completed on wire.
|
|
* (Segments 1 thru 8) for READDATA / WRITEDATA
|
|
* (Segments 1 thru 4) for READDATA_RSP
|
|
*/
|
|
seg1 = ctxp->ts_cmd_nvme - ctxp->ts_isr_cmd;
|
|
segsum = seg1;
|
|
|
|
seg2 = ctxp->ts_nvme_data - ctxp->ts_isr_cmd;
|
|
if (segsum > seg2)
|
|
return;
|
|
seg2 -= segsum;
|
|
segsum += seg2;
|
|
|
|
seg3 = ctxp->ts_data_wqput - ctxp->ts_isr_cmd;
|
|
if (segsum > seg3)
|
|
return;
|
|
seg3 -= segsum;
|
|
segsum += seg3;
|
|
|
|
seg4 = ctxp->ts_isr_data - ctxp->ts_isr_cmd;
|
|
if (segsum > seg4)
|
|
return;
|
|
seg4 -= segsum;
|
|
segsum += seg4;
|
|
|
|
seg5 = ctxp->ts_data_nvme - ctxp->ts_isr_cmd;
|
|
if (segsum > seg5)
|
|
return;
|
|
seg5 -= segsum;
|
|
segsum += seg5;
|
|
|
|
|
|
/* For auto rsp commands seg6 thru seg10 will be 0 */
|
|
if (ctxp->ts_nvme_status > ctxp->ts_data_nvme) {
|
|
seg6 = ctxp->ts_nvme_status - ctxp->ts_isr_cmd;
|
|
if (segsum > seg6)
|
|
return;
|
|
seg6 -= segsum;
|
|
segsum += seg6;
|
|
|
|
seg7 = ctxp->ts_status_wqput - ctxp->ts_isr_cmd;
|
|
if (segsum > seg7)
|
|
return;
|
|
seg7 -= segsum;
|
|
segsum += seg7;
|
|
|
|
seg8 = ctxp->ts_isr_status - ctxp->ts_isr_cmd;
|
|
if (segsum > seg8)
|
|
return;
|
|
seg8 -= segsum;
|
|
segsum += seg8;
|
|
|
|
seg9 = ctxp->ts_status_nvme - ctxp->ts_isr_cmd;
|
|
if (segsum > seg9)
|
|
return;
|
|
seg9 -= segsum;
|
|
segsum += seg9;
|
|
|
|
if (ctxp->ts_isr_status < ctxp->ts_isr_cmd)
|
|
return;
|
|
seg10 = (ctxp->ts_isr_status -
|
|
ctxp->ts_isr_cmd);
|
|
} else {
|
|
if (ctxp->ts_isr_data < ctxp->ts_isr_cmd)
|
|
return;
|
|
seg6 = 0;
|
|
seg7 = 0;
|
|
seg8 = 0;
|
|
seg9 = 0;
|
|
seg10 = (ctxp->ts_isr_data - ctxp->ts_isr_cmd);
|
|
}
|
|
|
|
phba->ktime_seg1_total += seg1;
|
|
if (seg1 < phba->ktime_seg1_min)
|
|
phba->ktime_seg1_min = seg1;
|
|
else if (seg1 > phba->ktime_seg1_max)
|
|
phba->ktime_seg1_max = seg1;
|
|
|
|
phba->ktime_seg2_total += seg2;
|
|
if (seg2 < phba->ktime_seg2_min)
|
|
phba->ktime_seg2_min = seg2;
|
|
else if (seg2 > phba->ktime_seg2_max)
|
|
phba->ktime_seg2_max = seg2;
|
|
|
|
phba->ktime_seg3_total += seg3;
|
|
if (seg3 < phba->ktime_seg3_min)
|
|
phba->ktime_seg3_min = seg3;
|
|
else if (seg3 > phba->ktime_seg3_max)
|
|
phba->ktime_seg3_max = seg3;
|
|
|
|
phba->ktime_seg4_total += seg4;
|
|
if (seg4 < phba->ktime_seg4_min)
|
|
phba->ktime_seg4_min = seg4;
|
|
else if (seg4 > phba->ktime_seg4_max)
|
|
phba->ktime_seg4_max = seg4;
|
|
|
|
phba->ktime_seg5_total += seg5;
|
|
if (seg5 < phba->ktime_seg5_min)
|
|
phba->ktime_seg5_min = seg5;
|
|
else if (seg5 > phba->ktime_seg5_max)
|
|
phba->ktime_seg5_max = seg5;
|
|
|
|
phba->ktime_data_samples++;
|
|
if (!seg6)
|
|
goto out;
|
|
|
|
phba->ktime_seg6_total += seg6;
|
|
if (seg6 < phba->ktime_seg6_min)
|
|
phba->ktime_seg6_min = seg6;
|
|
else if (seg6 > phba->ktime_seg6_max)
|
|
phba->ktime_seg6_max = seg6;
|
|
|
|
phba->ktime_seg7_total += seg7;
|
|
if (seg7 < phba->ktime_seg7_min)
|
|
phba->ktime_seg7_min = seg7;
|
|
else if (seg7 > phba->ktime_seg7_max)
|
|
phba->ktime_seg7_max = seg7;
|
|
|
|
phba->ktime_seg8_total += seg8;
|
|
if (seg8 < phba->ktime_seg8_min)
|
|
phba->ktime_seg8_min = seg8;
|
|
else if (seg8 > phba->ktime_seg8_max)
|
|
phba->ktime_seg8_max = seg8;
|
|
|
|
phba->ktime_seg9_total += seg9;
|
|
if (seg9 < phba->ktime_seg9_min)
|
|
phba->ktime_seg9_min = seg9;
|
|
else if (seg9 > phba->ktime_seg9_max)
|
|
phba->ktime_seg9_max = seg9;
|
|
out:
|
|
phba->ktime_seg10_total += seg10;
|
|
if (seg10 < phba->ktime_seg10_min)
|
|
phba->ktime_seg10_min = seg10;
|
|
else if (seg10 > phba->ktime_seg10_max)
|
|
phba->ktime_seg10_max = seg10;
|
|
phba->ktime_status_samples++;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* lpfc_nvmet_xmt_fcp_op_cmp - Completion handler for FCP Response
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmdwqe: Pointer to driver command WQE object.
|
|
* @wcqe: Pointer to driver response CQE object.
|
|
*
|
|
* The function is called from SLI ring event handler with no
|
|
* lock held. This function is the completion handler for NVME FCP commands
|
|
* The function frees memory resources used for the NVME commands.
|
|
**/
|
|
static void
|
|
lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
|
|
struct lpfc_wcqe_complete *wcqe)
|
|
{
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct nvmefc_tgt_fcp_req *rsp;
|
|
struct lpfc_nvmet_rcv_ctx *ctxp;
|
|
uint32_t status, result, op, start_clean, logerr;
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
uint32_t id;
|
|
#endif
|
|
|
|
ctxp = cmdwqe->context2;
|
|
ctxp->flag &= ~LPFC_NVMET_IO_INP;
|
|
|
|
rsp = &ctxp->ctx.fcp_req;
|
|
op = rsp->op;
|
|
|
|
status = bf_get(lpfc_wcqe_c_status, wcqe);
|
|
result = wcqe->parameter;
|
|
|
|
if (phba->targetport)
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
else
|
|
tgtp = NULL;
|
|
|
|
lpfc_nvmeio_data(phba, "NVMET FCP CMPL: xri x%x op x%x status x%x\n",
|
|
ctxp->oxid, op, status);
|
|
|
|
if (status) {
|
|
rsp->fcp_error = NVME_SC_DATA_XFER_ERROR;
|
|
rsp->transferred_length = 0;
|
|
if (tgtp) {
|
|
atomic_inc(&tgtp->xmt_fcp_rsp_error);
|
|
if (result == IOERR_ABORT_REQUESTED)
|
|
atomic_inc(&tgtp->xmt_fcp_rsp_aborted);
|
|
}
|
|
|
|
logerr = LOG_NVME_IOERR;
|
|
|
|
/* pick up SLI4 exhange busy condition */
|
|
if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
|
|
ctxp->flag |= LPFC_NVMET_XBUSY;
|
|
logerr |= LOG_NVME_ABTS;
|
|
if (tgtp)
|
|
atomic_inc(&tgtp->xmt_fcp_rsp_xb_set);
|
|
|
|
} else {
|
|
ctxp->flag &= ~LPFC_NVMET_XBUSY;
|
|
}
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, logerr,
|
|
"6315 IO Error Cmpl xri x%x: %x/%x XBUSY:x%x\n",
|
|
ctxp->oxid, status, result, ctxp->flag);
|
|
|
|
} else {
|
|
rsp->fcp_error = NVME_SC_SUCCESS;
|
|
if (op == NVMET_FCOP_RSP)
|
|
rsp->transferred_length = rsp->rsplen;
|
|
else
|
|
rsp->transferred_length = rsp->transfer_length;
|
|
if (tgtp)
|
|
atomic_inc(&tgtp->xmt_fcp_rsp_cmpl);
|
|
}
|
|
|
|
if ((op == NVMET_FCOP_READDATA_RSP) ||
|
|
(op == NVMET_FCOP_RSP)) {
|
|
/* Sanity check */
|
|
ctxp->state = LPFC_NVMET_STE_DONE;
|
|
ctxp->entry_cnt++;
|
|
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
if (ctxp->ts_cmd_nvme) {
|
|
if (rsp->op == NVMET_FCOP_READDATA_RSP) {
|
|
ctxp->ts_isr_data =
|
|
cmdwqe->isr_timestamp;
|
|
ctxp->ts_data_nvme =
|
|
ktime_get_ns();
|
|
ctxp->ts_nvme_status =
|
|
ctxp->ts_data_nvme;
|
|
ctxp->ts_status_wqput =
|
|
ctxp->ts_data_nvme;
|
|
ctxp->ts_isr_status =
|
|
ctxp->ts_data_nvme;
|
|
ctxp->ts_status_nvme =
|
|
ctxp->ts_data_nvme;
|
|
} else {
|
|
ctxp->ts_isr_status =
|
|
cmdwqe->isr_timestamp;
|
|
ctxp->ts_status_nvme =
|
|
ktime_get_ns();
|
|
}
|
|
}
|
|
if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) {
|
|
id = smp_processor_id();
|
|
if (ctxp->cpu != id)
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6703 CPU Check cmpl: "
|
|
"cpu %d expect %d\n",
|
|
id, ctxp->cpu);
|
|
if (ctxp->cpu < LPFC_CHECK_CPU_CNT)
|
|
phba->cpucheck_cmpl_io[id]++;
|
|
}
|
|
#endif
|
|
rsp->done(rsp);
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
if (ctxp->ts_cmd_nvme)
|
|
lpfc_nvmet_ktime(phba, ctxp);
|
|
#endif
|
|
/* lpfc_nvmet_xmt_fcp_release() will recycle the context */
|
|
} else {
|
|
ctxp->entry_cnt++;
|
|
start_clean = offsetof(struct lpfc_iocbq, iocb_flag);
|
|
memset(((char *)cmdwqe) + start_clean, 0,
|
|
(sizeof(struct lpfc_iocbq) - start_clean));
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
if (ctxp->ts_cmd_nvme) {
|
|
ctxp->ts_isr_data = cmdwqe->isr_timestamp;
|
|
ctxp->ts_data_nvme = ktime_get_ns();
|
|
}
|
|
if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) {
|
|
id = smp_processor_id();
|
|
if (ctxp->cpu != id)
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6704 CPU Check cmdcmpl: "
|
|
"cpu %d expect %d\n",
|
|
id, ctxp->cpu);
|
|
if (ctxp->cpu < LPFC_CHECK_CPU_CNT)
|
|
phba->cpucheck_ccmpl_io[id]++;
|
|
}
|
|
#endif
|
|
rsp->done(rsp);
|
|
}
|
|
}
|
|
|
|
static int
|
|
lpfc_nvmet_xmt_ls_rsp(struct nvmet_fc_target_port *tgtport,
|
|
struct nvmefc_tgt_ls_req *rsp)
|
|
{
|
|
struct lpfc_nvmet_rcv_ctx *ctxp =
|
|
container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.ls_req);
|
|
struct lpfc_hba *phba = ctxp->phba;
|
|
struct hbq_dmabuf *nvmebuf =
|
|
(struct hbq_dmabuf *)ctxp->rqb_buffer;
|
|
struct lpfc_iocbq *nvmewqeq;
|
|
struct lpfc_nvmet_tgtport *nvmep = tgtport->private;
|
|
struct lpfc_dmabuf dmabuf;
|
|
struct ulp_bde64 bpl;
|
|
int rc;
|
|
|
|
if (phba->pport->load_flag & FC_UNLOADING)
|
|
return -ENODEV;
|
|
|
|
if (phba->pport->load_flag & FC_UNLOADING)
|
|
return -ENODEV;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
|
|
"6023 NVMET LS rsp oxid x%x\n", ctxp->oxid);
|
|
|
|
if ((ctxp->state != LPFC_NVMET_STE_LS_RCV) ||
|
|
(ctxp->entry_cnt != 1)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6412 NVMET LS rsp state mismatch "
|
|
"oxid x%x: %d %d\n",
|
|
ctxp->oxid, ctxp->state, ctxp->entry_cnt);
|
|
}
|
|
ctxp->state = LPFC_NVMET_STE_LS_RSP;
|
|
ctxp->entry_cnt++;
|
|
|
|
nvmewqeq = lpfc_nvmet_prep_ls_wqe(phba, ctxp, rsp->rspdma,
|
|
rsp->rsplen);
|
|
if (nvmewqeq == NULL) {
|
|
atomic_inc(&nvmep->xmt_ls_drop);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6150 LS Drop IO x%x: Prep\n",
|
|
ctxp->oxid);
|
|
lpfc_in_buf_free(phba, &nvmebuf->dbuf);
|
|
atomic_inc(&nvmep->xmt_ls_abort);
|
|
lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp,
|
|
ctxp->sid, ctxp->oxid);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* Save numBdes for bpl2sgl */
|
|
nvmewqeq->rsvd2 = 1;
|
|
nvmewqeq->hba_wqidx = 0;
|
|
nvmewqeq->context3 = &dmabuf;
|
|
dmabuf.virt = &bpl;
|
|
bpl.addrLow = nvmewqeq->wqe.xmit_sequence.bde.addrLow;
|
|
bpl.addrHigh = nvmewqeq->wqe.xmit_sequence.bde.addrHigh;
|
|
bpl.tus.f.bdeSize = rsp->rsplen;
|
|
bpl.tus.f.bdeFlags = 0;
|
|
bpl.tus.w = le32_to_cpu(bpl.tus.w);
|
|
|
|
nvmewqeq->wqe_cmpl = lpfc_nvmet_xmt_ls_rsp_cmp;
|
|
nvmewqeq->iocb_cmpl = NULL;
|
|
nvmewqeq->context2 = ctxp;
|
|
|
|
lpfc_nvmeio_data(phba, "NVMET LS RESP: xri x%x wqidx x%x len x%x\n",
|
|
ctxp->oxid, nvmewqeq->hba_wqidx, rsp->rsplen);
|
|
|
|
rc = lpfc_sli4_issue_wqe(phba, LPFC_ELS_RING, nvmewqeq);
|
|
if (rc == WQE_SUCCESS) {
|
|
/*
|
|
* Okay to repost buffer here, but wait till cmpl
|
|
* before freeing ctxp and iocbq.
|
|
*/
|
|
lpfc_in_buf_free(phba, &nvmebuf->dbuf);
|
|
ctxp->rqb_buffer = 0;
|
|
atomic_inc(&nvmep->xmt_ls_rsp);
|
|
return 0;
|
|
}
|
|
/* Give back resources */
|
|
atomic_inc(&nvmep->xmt_ls_drop);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6151 LS Drop IO x%x: Issue %d\n",
|
|
ctxp->oxid, rc);
|
|
|
|
lpfc_nlp_put(nvmewqeq->context1);
|
|
|
|
lpfc_in_buf_free(phba, &nvmebuf->dbuf);
|
|
atomic_inc(&nvmep->xmt_ls_abort);
|
|
lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp, ctxp->sid, ctxp->oxid);
|
|
return -ENXIO;
|
|
}
|
|
|
|
static int
|
|
lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport,
|
|
struct nvmefc_tgt_fcp_req *rsp)
|
|
{
|
|
struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
|
|
struct lpfc_nvmet_rcv_ctx *ctxp =
|
|
container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req);
|
|
struct lpfc_hba *phba = ctxp->phba;
|
|
struct lpfc_queue *wq;
|
|
struct lpfc_iocbq *nvmewqeq;
|
|
struct lpfc_sli_ring *pring;
|
|
unsigned long iflags;
|
|
int rc;
|
|
|
|
if (phba->pport->load_flag & FC_UNLOADING) {
|
|
rc = -ENODEV;
|
|
goto aerr;
|
|
}
|
|
|
|
if (phba->pport->load_flag & FC_UNLOADING) {
|
|
rc = -ENODEV;
|
|
goto aerr;
|
|
}
|
|
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
if (ctxp->ts_cmd_nvme) {
|
|
if (rsp->op == NVMET_FCOP_RSP)
|
|
ctxp->ts_nvme_status = ktime_get_ns();
|
|
else
|
|
ctxp->ts_nvme_data = ktime_get_ns();
|
|
}
|
|
if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) {
|
|
int id = smp_processor_id();
|
|
ctxp->cpu = id;
|
|
if (id < LPFC_CHECK_CPU_CNT)
|
|
phba->cpucheck_xmt_io[id]++;
|
|
if (rsp->hwqid != id) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6705 CPU Check OP: "
|
|
"cpu %d expect %d\n",
|
|
id, rsp->hwqid);
|
|
ctxp->cpu = rsp->hwqid;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* Sanity check */
|
|
if ((ctxp->flag & LPFC_NVMET_ABTS_RCV) ||
|
|
(ctxp->state == LPFC_NVMET_STE_ABORT)) {
|
|
atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6102 IO xri x%x aborted\n",
|
|
ctxp->oxid);
|
|
rc = -ENXIO;
|
|
goto aerr;
|
|
}
|
|
|
|
nvmewqeq = lpfc_nvmet_prep_fcp_wqe(phba, ctxp);
|
|
if (nvmewqeq == NULL) {
|
|
atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6152 FCP Drop IO x%x: Prep\n",
|
|
ctxp->oxid);
|
|
rc = -ENXIO;
|
|
goto aerr;
|
|
}
|
|
|
|
nvmewqeq->wqe_cmpl = lpfc_nvmet_xmt_fcp_op_cmp;
|
|
nvmewqeq->iocb_cmpl = NULL;
|
|
nvmewqeq->context2 = ctxp;
|
|
nvmewqeq->iocb_flag |= LPFC_IO_NVMET;
|
|
ctxp->wqeq->hba_wqidx = rsp->hwqid;
|
|
|
|
lpfc_nvmeio_data(phba, "NVMET FCP CMND: xri x%x op x%x len x%x\n",
|
|
ctxp->oxid, rsp->op, rsp->rsplen);
|
|
|
|
ctxp->flag |= LPFC_NVMET_IO_INP;
|
|
rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, nvmewqeq);
|
|
if (rc == WQE_SUCCESS) {
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
if (!ctxp->ts_cmd_nvme)
|
|
return 0;
|
|
if (rsp->op == NVMET_FCOP_RSP)
|
|
ctxp->ts_status_wqput = ktime_get_ns();
|
|
else
|
|
ctxp->ts_data_wqput = ktime_get_ns();
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
if (rc == -EBUSY) {
|
|
/*
|
|
* WQ was full, so queue nvmewqeq to be sent after
|
|
* WQE release CQE
|
|
*/
|
|
ctxp->flag |= LPFC_NVMET_DEFER_WQFULL;
|
|
wq = phba->sli4_hba.nvme_wq[rsp->hwqid];
|
|
pring = wq->pring;
|
|
spin_lock_irqsave(&pring->ring_lock, iflags);
|
|
list_add_tail(&nvmewqeq->list, &wq->wqfull_list);
|
|
wq->q_flag |= HBA_NVMET_WQFULL;
|
|
spin_unlock_irqrestore(&pring->ring_lock, iflags);
|
|
atomic_inc(&lpfc_nvmep->defer_wqfull);
|
|
return 0;
|
|
}
|
|
|
|
/* Give back resources */
|
|
atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6153 FCP Drop IO x%x: Issue: %d\n",
|
|
ctxp->oxid, rc);
|
|
|
|
ctxp->wqeq->hba_wqidx = 0;
|
|
nvmewqeq->context2 = NULL;
|
|
nvmewqeq->context3 = NULL;
|
|
rc = -EBUSY;
|
|
aerr:
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
lpfc_nvmet_targetport_delete(struct nvmet_fc_target_port *targetport)
|
|
{
|
|
struct lpfc_nvmet_tgtport *tport = targetport->private;
|
|
|
|
/* release any threads waiting for the unreg to complete */
|
|
if (tport->phba->targetport)
|
|
complete(tport->tport_unreg_cmp);
|
|
}
|
|
|
|
static void
|
|
lpfc_nvmet_xmt_fcp_abort(struct nvmet_fc_target_port *tgtport,
|
|
struct nvmefc_tgt_fcp_req *req)
|
|
{
|
|
struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
|
|
struct lpfc_nvmet_rcv_ctx *ctxp =
|
|
container_of(req, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req);
|
|
struct lpfc_hba *phba = ctxp->phba;
|
|
struct lpfc_queue *wq;
|
|
unsigned long flags;
|
|
|
|
if (phba->pport->load_flag & FC_UNLOADING)
|
|
return;
|
|
|
|
if (phba->pport->load_flag & FC_UNLOADING)
|
|
return;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6103 NVMET Abort op: oxri x%x flg x%x ste %d\n",
|
|
ctxp->oxid, ctxp->flag, ctxp->state);
|
|
|
|
lpfc_nvmeio_data(phba, "NVMET FCP ABRT: xri x%x flg x%x ste x%x\n",
|
|
ctxp->oxid, ctxp->flag, ctxp->state);
|
|
|
|
atomic_inc(&lpfc_nvmep->xmt_fcp_abort);
|
|
|
|
spin_lock_irqsave(&ctxp->ctxlock, flags);
|
|
ctxp->state = LPFC_NVMET_STE_ABORT;
|
|
|
|
/* Since iaab/iaar are NOT set, we need to check
|
|
* if the firmware is in process of aborting IO
|
|
*/
|
|
if (ctxp->flag & LPFC_NVMET_XBUSY) {
|
|
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
|
|
return;
|
|
}
|
|
ctxp->flag |= LPFC_NVMET_ABORT_OP;
|
|
|
|
if (ctxp->flag & LPFC_NVMET_DEFER_WQFULL) {
|
|
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
|
|
ctxp->oxid);
|
|
wq = phba->sli4_hba.nvme_wq[ctxp->wqeq->hba_wqidx];
|
|
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
|
|
lpfc_nvmet_wqfull_flush(phba, wq, ctxp);
|
|
return;
|
|
}
|
|
|
|
/* An state of LPFC_NVMET_STE_RCV means we have just received
|
|
* the NVME command and have not started processing it.
|
|
* (by issuing any IO WQEs on this exchange yet)
|
|
*/
|
|
if (ctxp->state == LPFC_NVMET_STE_RCV)
|
|
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
|
|
ctxp->oxid);
|
|
else
|
|
lpfc_nvmet_sol_fcp_issue_abort(phba, ctxp, ctxp->sid,
|
|
ctxp->oxid);
|
|
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
|
|
}
|
|
|
|
static void
|
|
lpfc_nvmet_xmt_fcp_release(struct nvmet_fc_target_port *tgtport,
|
|
struct nvmefc_tgt_fcp_req *rsp)
|
|
{
|
|
struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
|
|
struct lpfc_nvmet_rcv_ctx *ctxp =
|
|
container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req);
|
|
struct lpfc_hba *phba = ctxp->phba;
|
|
unsigned long flags;
|
|
bool aborting = false;
|
|
|
|
if (ctxp->state != LPFC_NVMET_STE_DONE &&
|
|
ctxp->state != LPFC_NVMET_STE_ABORT) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6413 NVMET release bad state %d %d oxid x%x\n",
|
|
ctxp->state, ctxp->entry_cnt, ctxp->oxid);
|
|
}
|
|
|
|
spin_lock_irqsave(&ctxp->ctxlock, flags);
|
|
if ((ctxp->flag & LPFC_NVMET_ABORT_OP) ||
|
|
(ctxp->flag & LPFC_NVMET_XBUSY)) {
|
|
aborting = true;
|
|
/* let the abort path do the real release */
|
|
lpfc_nvmet_defer_release(phba, ctxp);
|
|
}
|
|
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
|
|
|
|
lpfc_nvmeio_data(phba, "NVMET FCP FREE: xri x%x ste %d abt %d\n", ctxp->oxid,
|
|
ctxp->state, aborting);
|
|
|
|
atomic_inc(&lpfc_nvmep->xmt_fcp_release);
|
|
|
|
if (aborting)
|
|
return;
|
|
|
|
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
|
|
}
|
|
|
|
static void
|
|
lpfc_nvmet_defer_rcv(struct nvmet_fc_target_port *tgtport,
|
|
struct nvmefc_tgt_fcp_req *rsp)
|
|
{
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct lpfc_nvmet_rcv_ctx *ctxp =
|
|
container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req);
|
|
struct rqb_dmabuf *nvmebuf = ctxp->rqb_buffer;
|
|
struct lpfc_hba *phba = ctxp->phba;
|
|
|
|
lpfc_nvmeio_data(phba, "NVMET DEFERRCV: xri x%x sz %d CPU %02x\n",
|
|
ctxp->oxid, ctxp->size, smp_processor_id());
|
|
|
|
if (!nvmebuf) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
|
|
"6425 Defer rcv: no buffer xri x%x: "
|
|
"flg %x ste %x\n",
|
|
ctxp->oxid, ctxp->flag, ctxp->state);
|
|
return;
|
|
}
|
|
|
|
tgtp = phba->targetport->private;
|
|
if (tgtp)
|
|
atomic_inc(&tgtp->rcv_fcp_cmd_defer);
|
|
|
|
/* Free the nvmebuf since a new buffer already replaced it */
|
|
nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf);
|
|
}
|
|
|
|
static struct nvmet_fc_target_template lpfc_tgttemplate = {
|
|
.targetport_delete = lpfc_nvmet_targetport_delete,
|
|
.xmt_ls_rsp = lpfc_nvmet_xmt_ls_rsp,
|
|
.fcp_op = lpfc_nvmet_xmt_fcp_op,
|
|
.fcp_abort = lpfc_nvmet_xmt_fcp_abort,
|
|
.fcp_req_release = lpfc_nvmet_xmt_fcp_release,
|
|
.defer_rcv = lpfc_nvmet_defer_rcv,
|
|
|
|
.max_hw_queues = 1,
|
|
.max_sgl_segments = LPFC_NVMET_DEFAULT_SEGS,
|
|
.max_dif_sgl_segments = LPFC_NVMET_DEFAULT_SEGS,
|
|
.dma_boundary = 0xFFFFFFFF,
|
|
|
|
/* optional features */
|
|
.target_features = 0,
|
|
/* sizes of additional private data for data structures */
|
|
.target_priv_sz = sizeof(struct lpfc_nvmet_tgtport),
|
|
};
|
|
|
|
static void
|
|
__lpfc_nvmet_clean_io_for_cpu(struct lpfc_hba *phba,
|
|
struct lpfc_nvmet_ctx_info *infop)
|
|
{
|
|
struct lpfc_nvmet_ctxbuf *ctx_buf, *next_ctx_buf;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&infop->nvmet_ctx_list_lock, flags);
|
|
list_for_each_entry_safe(ctx_buf, next_ctx_buf,
|
|
&infop->nvmet_ctx_list, list) {
|
|
spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
|
|
list_del_init(&ctx_buf->list);
|
|
spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
|
|
|
|
__lpfc_clear_active_sglq(phba, ctx_buf->sglq->sli4_lxritag);
|
|
ctx_buf->sglq->state = SGL_FREED;
|
|
ctx_buf->sglq->ndlp = NULL;
|
|
|
|
spin_lock(&phba->sli4_hba.sgl_list_lock);
|
|
list_add_tail(&ctx_buf->sglq->list,
|
|
&phba->sli4_hba.lpfc_nvmet_sgl_list);
|
|
spin_unlock(&phba->sli4_hba.sgl_list_lock);
|
|
|
|
lpfc_sli_release_iocbq(phba, ctx_buf->iocbq);
|
|
kfree(ctx_buf->context);
|
|
}
|
|
spin_unlock_irqrestore(&infop->nvmet_ctx_list_lock, flags);
|
|
}
|
|
|
|
static void
|
|
lpfc_nvmet_cleanup_io_context(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_nvmet_ctx_info *infop;
|
|
int i, j;
|
|
|
|
/* The first context list, MRQ 0 CPU 0 */
|
|
infop = phba->sli4_hba.nvmet_ctx_info;
|
|
if (!infop)
|
|
return;
|
|
|
|
/* Cycle the the entire CPU context list for every MRQ */
|
|
for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
|
|
for (j = 0; j < phba->sli4_hba.num_present_cpu; j++) {
|
|
__lpfc_nvmet_clean_io_for_cpu(phba, infop);
|
|
infop++; /* next */
|
|
}
|
|
}
|
|
kfree(phba->sli4_hba.nvmet_ctx_info);
|
|
phba->sli4_hba.nvmet_ctx_info = NULL;
|
|
}
|
|
|
|
static int
|
|
lpfc_nvmet_setup_io_context(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_nvmet_ctxbuf *ctx_buf;
|
|
struct lpfc_iocbq *nvmewqe;
|
|
union lpfc_wqe128 *wqe;
|
|
struct lpfc_nvmet_ctx_info *last_infop;
|
|
struct lpfc_nvmet_ctx_info *infop;
|
|
int i, j, idx;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
|
|
"6403 Allocate NVMET resources for %d XRIs\n",
|
|
phba->sli4_hba.nvmet_xri_cnt);
|
|
|
|
phba->sli4_hba.nvmet_ctx_info = kcalloc(
|
|
phba->sli4_hba.num_present_cpu * phba->cfg_nvmet_mrq,
|
|
sizeof(struct lpfc_nvmet_ctx_info), GFP_KERNEL);
|
|
if (!phba->sli4_hba.nvmet_ctx_info) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"6419 Failed allocate memory for "
|
|
"nvmet context lists\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/*
|
|
* Assuming X CPUs in the system, and Y MRQs, allocate some
|
|
* lpfc_nvmet_ctx_info structures as follows:
|
|
*
|
|
* cpu0/mrq0 cpu1/mrq0 ... cpuX/mrq0
|
|
* cpu0/mrq1 cpu1/mrq1 ... cpuX/mrq1
|
|
* ...
|
|
* cpuX/mrqY cpuX/mrqY ... cpuX/mrqY
|
|
*
|
|
* Each line represents a MRQ "silo" containing an entry for
|
|
* every CPU.
|
|
*
|
|
* MRQ X is initially assumed to be associated with CPU X, thus
|
|
* contexts are initially distributed across all MRQs using
|
|
* the MRQ index (N) as follows cpuN/mrqN. When contexts are
|
|
* freed, the are freed to the MRQ silo based on the CPU number
|
|
* of the IO completion. Thus a context that was allocated for MRQ A
|
|
* whose IO completed on CPU B will be freed to cpuB/mrqA.
|
|
*/
|
|
infop = phba->sli4_hba.nvmet_ctx_info;
|
|
for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
|
|
for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
|
|
INIT_LIST_HEAD(&infop->nvmet_ctx_list);
|
|
spin_lock_init(&infop->nvmet_ctx_list_lock);
|
|
infop->nvmet_ctx_list_cnt = 0;
|
|
infop++;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Setup the next CPU context info ptr for each MRQ.
|
|
* MRQ 0 will cycle thru CPUs 0 - X separately from
|
|
* MRQ 1 cycling thru CPUs 0 - X, and so on.
|
|
*/
|
|
for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
|
|
last_infop = lpfc_get_ctx_list(phba, 0, j);
|
|
for (i = phba->sli4_hba.num_present_cpu - 1; i >= 0; i--) {
|
|
infop = lpfc_get_ctx_list(phba, i, j);
|
|
infop->nvmet_ctx_next_cpu = last_infop;
|
|
last_infop = infop;
|
|
}
|
|
}
|
|
|
|
/* For all nvmet xris, allocate resources needed to process a
|
|
* received command on a per xri basis.
|
|
*/
|
|
idx = 0;
|
|
for (i = 0; i < phba->sli4_hba.nvmet_xri_cnt; i++) {
|
|
ctx_buf = kzalloc(sizeof(*ctx_buf), GFP_KERNEL);
|
|
if (!ctx_buf) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
|
|
"6404 Ran out of memory for NVMET\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ctx_buf->context = kzalloc(sizeof(*ctx_buf->context),
|
|
GFP_KERNEL);
|
|
if (!ctx_buf->context) {
|
|
kfree(ctx_buf);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
|
|
"6405 Ran out of NVMET "
|
|
"context memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
ctx_buf->context->ctxbuf = ctx_buf;
|
|
ctx_buf->context->state = LPFC_NVMET_STE_FREE;
|
|
|
|
ctx_buf->iocbq = lpfc_sli_get_iocbq(phba);
|
|
if (!ctx_buf->iocbq) {
|
|
kfree(ctx_buf->context);
|
|
kfree(ctx_buf);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
|
|
"6406 Ran out of NVMET iocb/WQEs\n");
|
|
return -ENOMEM;
|
|
}
|
|
ctx_buf->iocbq->iocb_flag = LPFC_IO_NVMET;
|
|
nvmewqe = ctx_buf->iocbq;
|
|
wqe = &nvmewqe->wqe;
|
|
|
|
/* Initialize WQE */
|
|
memset(wqe, 0, sizeof(union lpfc_wqe));
|
|
|
|
ctx_buf->iocbq->context1 = NULL;
|
|
spin_lock(&phba->sli4_hba.sgl_list_lock);
|
|
ctx_buf->sglq = __lpfc_sli_get_nvmet_sglq(phba, ctx_buf->iocbq);
|
|
spin_unlock(&phba->sli4_hba.sgl_list_lock);
|
|
if (!ctx_buf->sglq) {
|
|
lpfc_sli_release_iocbq(phba, ctx_buf->iocbq);
|
|
kfree(ctx_buf->context);
|
|
kfree(ctx_buf);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
|
|
"6407 Ran out of NVMET XRIs\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/*
|
|
* Add ctx to MRQidx context list. Our initial assumption
|
|
* is MRQidx will be associated with CPUidx. This association
|
|
* can change on the fly.
|
|
*/
|
|
infop = lpfc_get_ctx_list(phba, idx, idx);
|
|
spin_lock(&infop->nvmet_ctx_list_lock);
|
|
list_add_tail(&ctx_buf->list, &infop->nvmet_ctx_list);
|
|
infop->nvmet_ctx_list_cnt++;
|
|
spin_unlock(&infop->nvmet_ctx_list_lock);
|
|
|
|
/* Spread ctx structures evenly across all MRQs */
|
|
idx++;
|
|
if (idx >= phba->cfg_nvmet_mrq)
|
|
idx = 0;
|
|
}
|
|
|
|
for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
|
|
for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
|
|
infop = lpfc_get_ctx_list(phba, i, j);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
|
|
"6408 TOTAL NVMET ctx for CPU %d "
|
|
"MRQ %d: cnt %d nextcpu %p\n",
|
|
i, j, infop->nvmet_ctx_list_cnt,
|
|
infop->nvmet_ctx_next_cpu);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
lpfc_nvmet_create_targetport(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport *vport = phba->pport;
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct nvmet_fc_port_info pinfo;
|
|
int error;
|
|
|
|
if (phba->targetport)
|
|
return 0;
|
|
|
|
error = lpfc_nvmet_setup_io_context(phba);
|
|
if (error)
|
|
return error;
|
|
|
|
memset(&pinfo, 0, sizeof(struct nvmet_fc_port_info));
|
|
pinfo.node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
|
|
pinfo.port_name = wwn_to_u64(vport->fc_portname.u.wwn);
|
|
pinfo.port_id = vport->fc_myDID;
|
|
|
|
/* We need to tell the transport layer + 1 because it takes page
|
|
* alignment into account. When space for the SGL is allocated we
|
|
* allocate + 3, one for cmd, one for rsp and one for this alignment
|
|
*/
|
|
lpfc_tgttemplate.max_sgl_segments = phba->cfg_nvme_seg_cnt + 1;
|
|
lpfc_tgttemplate.max_hw_queues = phba->cfg_nvme_io_channel;
|
|
lpfc_tgttemplate.target_features = NVMET_FCTGTFEAT_READDATA_RSP;
|
|
|
|
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
|
|
error = nvmet_fc_register_targetport(&pinfo, &lpfc_tgttemplate,
|
|
&phba->pcidev->dev,
|
|
&phba->targetport);
|
|
#else
|
|
error = -ENOENT;
|
|
#endif
|
|
if (error) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
|
|
"6025 Cannot register NVME targetport x%x: "
|
|
"portnm %llx nodenm %llx segs %d qs %d\n",
|
|
error,
|
|
pinfo.port_name, pinfo.node_name,
|
|
lpfc_tgttemplate.max_sgl_segments,
|
|
lpfc_tgttemplate.max_hw_queues);
|
|
phba->targetport = NULL;
|
|
phba->nvmet_support = 0;
|
|
|
|
lpfc_nvmet_cleanup_io_context(phba);
|
|
|
|
} else {
|
|
tgtp = (struct lpfc_nvmet_tgtport *)
|
|
phba->targetport->private;
|
|
tgtp->phba = phba;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
|
|
"6026 Registered NVME "
|
|
"targetport: %p, private %p "
|
|
"portnm %llx nodenm %llx segs %d qs %d\n",
|
|
phba->targetport, tgtp,
|
|
pinfo.port_name, pinfo.node_name,
|
|
lpfc_tgttemplate.max_sgl_segments,
|
|
lpfc_tgttemplate.max_hw_queues);
|
|
|
|
atomic_set(&tgtp->rcv_ls_req_in, 0);
|
|
atomic_set(&tgtp->rcv_ls_req_out, 0);
|
|
atomic_set(&tgtp->rcv_ls_req_drop, 0);
|
|
atomic_set(&tgtp->xmt_ls_abort, 0);
|
|
atomic_set(&tgtp->xmt_ls_abort_cmpl, 0);
|
|
atomic_set(&tgtp->xmt_ls_rsp, 0);
|
|
atomic_set(&tgtp->xmt_ls_drop, 0);
|
|
atomic_set(&tgtp->xmt_ls_rsp_error, 0);
|
|
atomic_set(&tgtp->xmt_ls_rsp_xb_set, 0);
|
|
atomic_set(&tgtp->xmt_ls_rsp_aborted, 0);
|
|
atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0);
|
|
atomic_set(&tgtp->rcv_fcp_cmd_in, 0);
|
|
atomic_set(&tgtp->rcv_fcp_cmd_out, 0);
|
|
atomic_set(&tgtp->rcv_fcp_cmd_drop, 0);
|
|
atomic_set(&tgtp->xmt_fcp_drop, 0);
|
|
atomic_set(&tgtp->xmt_fcp_read_rsp, 0);
|
|
atomic_set(&tgtp->xmt_fcp_read, 0);
|
|
atomic_set(&tgtp->xmt_fcp_write, 0);
|
|
atomic_set(&tgtp->xmt_fcp_rsp, 0);
|
|
atomic_set(&tgtp->xmt_fcp_release, 0);
|
|
atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0);
|
|
atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
|
|
atomic_set(&tgtp->xmt_fcp_rsp_xb_set, 0);
|
|
atomic_set(&tgtp->xmt_fcp_rsp_aborted, 0);
|
|
atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
|
|
atomic_set(&tgtp->xmt_fcp_xri_abort_cqe, 0);
|
|
atomic_set(&tgtp->xmt_fcp_abort, 0);
|
|
atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0);
|
|
atomic_set(&tgtp->xmt_abort_unsol, 0);
|
|
atomic_set(&tgtp->xmt_abort_sol, 0);
|
|
atomic_set(&tgtp->xmt_abort_rsp, 0);
|
|
atomic_set(&tgtp->xmt_abort_rsp_error, 0);
|
|
atomic_set(&tgtp->defer_ctx, 0);
|
|
atomic_set(&tgtp->defer_fod, 0);
|
|
atomic_set(&tgtp->defer_wqfull, 0);
|
|
}
|
|
return error;
|
|
}
|
|
|
|
int
|
|
lpfc_nvmet_update_targetport(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport *vport = phba->pport;
|
|
|
|
if (!phba->targetport)
|
|
return 0;
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME,
|
|
"6007 Update NVMET port %p did x%x\n",
|
|
phba->targetport, vport->fc_myDID);
|
|
|
|
phba->targetport->port_id = vport->fc_myDID;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_nvmet_xri_aborted - Fast-path process of nvmet xri abort
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @axri: pointer to the nvmet xri abort wcqe structure.
|
|
*
|
|
* This routine is invoked by the worker thread to process a SLI4 fast-path
|
|
* NVMET aborted xri.
|
|
**/
|
|
void
|
|
lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba,
|
|
struct sli4_wcqe_xri_aborted *axri)
|
|
{
|
|
uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
|
|
uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
|
|
struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp;
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct lpfc_nodelist *ndlp;
|
|
unsigned long iflag = 0;
|
|
int rrq_empty = 0;
|
|
bool released = false;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6317 XB aborted xri x%x rxid x%x\n", xri, rxid);
|
|
|
|
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
|
|
return;
|
|
|
|
if (phba->targetport) {
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
atomic_inc(&tgtp->xmt_fcp_xri_abort_cqe);
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
|
|
list_for_each_entry_safe(ctxp, next_ctxp,
|
|
&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
|
|
list) {
|
|
if (ctxp->ctxbuf->sglq->sli4_xritag != xri)
|
|
continue;
|
|
|
|
/* Check if we already received a free context call
|
|
* and we have completed processing an abort situation.
|
|
*/
|
|
if (ctxp->flag & LPFC_NVMET_CTX_RLS &&
|
|
!(ctxp->flag & LPFC_NVMET_ABORT_OP)) {
|
|
list_del(&ctxp->list);
|
|
released = true;
|
|
}
|
|
ctxp->flag &= ~LPFC_NVMET_XBUSY;
|
|
spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
|
|
|
|
rrq_empty = list_empty(&phba->active_rrq_list);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
|
|
if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
|
|
(ndlp->nlp_state == NLP_STE_UNMAPPED_NODE ||
|
|
ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
|
|
lpfc_set_rrq_active(phba, ndlp,
|
|
ctxp->ctxbuf->sglq->sli4_lxritag,
|
|
rxid, 1);
|
|
lpfc_sli4_abts_err_handler(phba, ndlp, axri);
|
|
}
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6318 XB aborted oxid %x flg x%x (%x)\n",
|
|
ctxp->oxid, ctxp->flag, released);
|
|
if (released)
|
|
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
|
|
|
|
if (rrq_empty)
|
|
lpfc_worker_wake_up(phba);
|
|
return;
|
|
}
|
|
spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
}
|
|
|
|
int
|
|
lpfc_nvmet_rcv_unsol_abort(struct lpfc_vport *vport,
|
|
struct fc_frame_header *fc_hdr)
|
|
|
|
{
|
|
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp;
|
|
struct nvmefc_tgt_fcp_req *rsp;
|
|
uint16_t xri;
|
|
unsigned long iflag = 0;
|
|
|
|
xri = be16_to_cpu(fc_hdr->fh_ox_id);
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
|
|
list_for_each_entry_safe(ctxp, next_ctxp,
|
|
&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
|
|
list) {
|
|
if (ctxp->ctxbuf->sglq->sli4_xritag != xri)
|
|
continue;
|
|
|
|
spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
|
|
spin_lock_irqsave(&ctxp->ctxlock, iflag);
|
|
ctxp->flag |= LPFC_NVMET_ABTS_RCV;
|
|
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
|
|
|
|
lpfc_nvmeio_data(phba,
|
|
"NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
|
|
xri, smp_processor_id(), 0);
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6319 NVMET Rcv ABTS:acc xri x%x\n", xri);
|
|
|
|
rsp = &ctxp->ctx.fcp_req;
|
|
nvmet_fc_rcv_fcp_abort(phba->targetport, rsp);
|
|
|
|
/* Respond with BA_ACC accordingly */
|
|
lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1);
|
|
return 0;
|
|
}
|
|
spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
|
|
lpfc_nvmeio_data(phba, "NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
|
|
xri, smp_processor_id(), 1);
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6320 NVMET Rcv ABTS:rjt xri x%x\n", xri);
|
|
|
|
/* Respond with BA_RJT accordingly */
|
|
lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 0);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
lpfc_nvmet_wqfull_flush(struct lpfc_hba *phba, struct lpfc_queue *wq,
|
|
struct lpfc_nvmet_rcv_ctx *ctxp)
|
|
{
|
|
struct lpfc_sli_ring *pring;
|
|
struct lpfc_iocbq *nvmewqeq;
|
|
struct lpfc_iocbq *next_nvmewqeq;
|
|
unsigned long iflags;
|
|
struct lpfc_wcqe_complete wcqe;
|
|
struct lpfc_wcqe_complete *wcqep;
|
|
|
|
pring = wq->pring;
|
|
wcqep = &wcqe;
|
|
|
|
/* Fake an ABORT error code back to cmpl routine */
|
|
memset(wcqep, 0, sizeof(struct lpfc_wcqe_complete));
|
|
bf_set(lpfc_wcqe_c_status, wcqep, IOSTAT_LOCAL_REJECT);
|
|
wcqep->parameter = IOERR_ABORT_REQUESTED;
|
|
|
|
spin_lock_irqsave(&pring->ring_lock, iflags);
|
|
list_for_each_entry_safe(nvmewqeq, next_nvmewqeq,
|
|
&wq->wqfull_list, list) {
|
|
if (ctxp) {
|
|
/* Checking for a specific IO to flush */
|
|
if (nvmewqeq->context2 == ctxp) {
|
|
list_del(&nvmewqeq->list);
|
|
spin_unlock_irqrestore(&pring->ring_lock,
|
|
iflags);
|
|
lpfc_nvmet_xmt_fcp_op_cmp(phba, nvmewqeq,
|
|
wcqep);
|
|
return;
|
|
}
|
|
continue;
|
|
} else {
|
|
/* Flush all IOs */
|
|
list_del(&nvmewqeq->list);
|
|
spin_unlock_irqrestore(&pring->ring_lock, iflags);
|
|
lpfc_nvmet_xmt_fcp_op_cmp(phba, nvmewqeq, wcqep);
|
|
spin_lock_irqsave(&pring->ring_lock, iflags);
|
|
}
|
|
}
|
|
if (!ctxp)
|
|
wq->q_flag &= ~HBA_NVMET_WQFULL;
|
|
spin_unlock_irqrestore(&pring->ring_lock, iflags);
|
|
}
|
|
|
|
void
|
|
lpfc_nvmet_wqfull_process(struct lpfc_hba *phba,
|
|
struct lpfc_queue *wq)
|
|
{
|
|
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
|
|
struct lpfc_sli_ring *pring;
|
|
struct lpfc_iocbq *nvmewqeq;
|
|
unsigned long iflags;
|
|
int rc;
|
|
|
|
/*
|
|
* Some WQE slots are available, so try to re-issue anything
|
|
* on the WQ wqfull_list.
|
|
*/
|
|
pring = wq->pring;
|
|
spin_lock_irqsave(&pring->ring_lock, iflags);
|
|
while (!list_empty(&wq->wqfull_list)) {
|
|
list_remove_head(&wq->wqfull_list, nvmewqeq, struct lpfc_iocbq,
|
|
list);
|
|
spin_unlock_irqrestore(&pring->ring_lock, iflags);
|
|
rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, nvmewqeq);
|
|
spin_lock_irqsave(&pring->ring_lock, iflags);
|
|
if (rc == -EBUSY) {
|
|
/* WQ was full again, so put it back on the list */
|
|
list_add(&nvmewqeq->list, &wq->wqfull_list);
|
|
spin_unlock_irqrestore(&pring->ring_lock, iflags);
|
|
return;
|
|
}
|
|
}
|
|
wq->q_flag &= ~HBA_NVMET_WQFULL;
|
|
spin_unlock_irqrestore(&pring->ring_lock, iflags);
|
|
|
|
#endif
|
|
}
|
|
|
|
void
|
|
lpfc_nvmet_destroy_targetport(struct lpfc_hba *phba)
|
|
{
|
|
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct lpfc_queue *wq;
|
|
uint32_t qidx;
|
|
DECLARE_COMPLETION_ONSTACK(tport_unreg_cmp);
|
|
|
|
if (phba->nvmet_support == 0)
|
|
return;
|
|
if (phba->targetport) {
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
|
|
wq = phba->sli4_hba.nvme_wq[qidx];
|
|
lpfc_nvmet_wqfull_flush(phba, wq, NULL);
|
|
}
|
|
tgtp->tport_unreg_cmp = &tport_unreg_cmp;
|
|
nvmet_fc_unregister_targetport(phba->targetport);
|
|
wait_for_completion_timeout(&tport_unreg_cmp, 5);
|
|
lpfc_nvmet_cleanup_io_context(phba);
|
|
}
|
|
phba->targetport = NULL;
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* lpfc_nvmet_unsol_ls_buffer - Process an unsolicited event data buffer
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @pring: pointer to a SLI ring.
|
|
* @nvmebuf: pointer to lpfc nvme command HBQ data structure.
|
|
*
|
|
* This routine is used for processing the WQE associated with a unsolicited
|
|
* event. It first determines whether there is an existing ndlp that matches
|
|
* the DID from the unsolicited WQE. If not, it will create a new one with
|
|
* the DID from the unsolicited WQE. The ELS command from the unsolicited
|
|
* WQE is then used to invoke the proper routine and to set up proper state
|
|
* of the discovery state machine.
|
|
**/
|
|
static void
|
|
lpfc_nvmet_unsol_ls_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct hbq_dmabuf *nvmebuf)
|
|
{
|
|
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct fc_frame_header *fc_hdr;
|
|
struct lpfc_nvmet_rcv_ctx *ctxp;
|
|
uint32_t *payload;
|
|
uint32_t size, oxid, sid, rc;
|
|
|
|
fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
|
|
oxid = be16_to_cpu(fc_hdr->fh_ox_id);
|
|
|
|
if (!phba->targetport) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6154 LS Drop IO x%x\n", oxid);
|
|
oxid = 0;
|
|
size = 0;
|
|
sid = 0;
|
|
ctxp = NULL;
|
|
goto dropit;
|
|
}
|
|
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
payload = (uint32_t *)(nvmebuf->dbuf.virt);
|
|
size = bf_get(lpfc_rcqe_length, &nvmebuf->cq_event.cqe.rcqe_cmpl);
|
|
sid = sli4_sid_from_fc_hdr(fc_hdr);
|
|
|
|
ctxp = kzalloc(sizeof(struct lpfc_nvmet_rcv_ctx), GFP_ATOMIC);
|
|
if (ctxp == NULL) {
|
|
atomic_inc(&tgtp->rcv_ls_req_drop);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6155 LS Drop IO x%x: Alloc\n",
|
|
oxid);
|
|
dropit:
|
|
lpfc_nvmeio_data(phba, "NVMET LS DROP: "
|
|
"xri x%x sz %d from %06x\n",
|
|
oxid, size, sid);
|
|
lpfc_in_buf_free(phba, &nvmebuf->dbuf);
|
|
return;
|
|
}
|
|
ctxp->phba = phba;
|
|
ctxp->size = size;
|
|
ctxp->oxid = oxid;
|
|
ctxp->sid = sid;
|
|
ctxp->wqeq = NULL;
|
|
ctxp->state = LPFC_NVMET_STE_LS_RCV;
|
|
ctxp->entry_cnt = 1;
|
|
ctxp->rqb_buffer = (void *)nvmebuf;
|
|
|
|
lpfc_nvmeio_data(phba, "NVMET LS RCV: xri x%x sz %d from %06x\n",
|
|
oxid, size, sid);
|
|
/*
|
|
* The calling sequence should be:
|
|
* nvmet_fc_rcv_ls_req -> lpfc_nvmet_xmt_ls_rsp/cmp ->_req->done
|
|
* lpfc_nvmet_xmt_ls_rsp_cmp should free the allocated ctxp.
|
|
*/
|
|
atomic_inc(&tgtp->rcv_ls_req_in);
|
|
rc = nvmet_fc_rcv_ls_req(phba->targetport, &ctxp->ctx.ls_req,
|
|
payload, size);
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
|
|
"6037 NVMET Unsol rcv: sz %d rc %d: %08x %08x %08x "
|
|
"%08x %08x %08x\n", size, rc,
|
|
*payload, *(payload+1), *(payload+2),
|
|
*(payload+3), *(payload+4), *(payload+5));
|
|
|
|
if (rc == 0) {
|
|
atomic_inc(&tgtp->rcv_ls_req_out);
|
|
return;
|
|
}
|
|
|
|
lpfc_nvmeio_data(phba, "NVMET LS DROP: xri x%x sz %d from %06x\n",
|
|
oxid, size, sid);
|
|
|
|
atomic_inc(&tgtp->rcv_ls_req_drop);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6156 LS Drop IO x%x: nvmet_fc_rcv_ls_req %d\n",
|
|
ctxp->oxid, rc);
|
|
|
|
/* We assume a rcv'ed cmd ALWAYs fits into 1 buffer */
|
|
lpfc_in_buf_free(phba, &nvmebuf->dbuf);
|
|
|
|
atomic_inc(&tgtp->xmt_ls_abort);
|
|
lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp, sid, oxid);
|
|
#endif
|
|
}
|
|
|
|
static struct lpfc_nvmet_ctxbuf *
|
|
lpfc_nvmet_replenish_context(struct lpfc_hba *phba,
|
|
struct lpfc_nvmet_ctx_info *current_infop)
|
|
{
|
|
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
|
|
struct lpfc_nvmet_ctxbuf *ctx_buf = NULL;
|
|
struct lpfc_nvmet_ctx_info *get_infop;
|
|
int i;
|
|
|
|
/*
|
|
* The current_infop for the MRQ a NVME command IU was received
|
|
* on is empty. Our goal is to replenish this MRQs context
|
|
* list from a another CPUs.
|
|
*
|
|
* First we need to pick a context list to start looking on.
|
|
* nvmet_ctx_start_cpu has available context the last time
|
|
* we needed to replenish this CPU where nvmet_ctx_next_cpu
|
|
* is just the next sequential CPU for this MRQ.
|
|
*/
|
|
if (current_infop->nvmet_ctx_start_cpu)
|
|
get_infop = current_infop->nvmet_ctx_start_cpu;
|
|
else
|
|
get_infop = current_infop->nvmet_ctx_next_cpu;
|
|
|
|
for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
|
|
if (get_infop == current_infop) {
|
|
get_infop = get_infop->nvmet_ctx_next_cpu;
|
|
continue;
|
|
}
|
|
spin_lock(&get_infop->nvmet_ctx_list_lock);
|
|
|
|
/* Just take the entire context list, if there are any */
|
|
if (get_infop->nvmet_ctx_list_cnt) {
|
|
list_splice_init(&get_infop->nvmet_ctx_list,
|
|
¤t_infop->nvmet_ctx_list);
|
|
current_infop->nvmet_ctx_list_cnt =
|
|
get_infop->nvmet_ctx_list_cnt - 1;
|
|
get_infop->nvmet_ctx_list_cnt = 0;
|
|
spin_unlock(&get_infop->nvmet_ctx_list_lock);
|
|
|
|
current_infop->nvmet_ctx_start_cpu = get_infop;
|
|
list_remove_head(¤t_infop->nvmet_ctx_list,
|
|
ctx_buf, struct lpfc_nvmet_ctxbuf,
|
|
list);
|
|
return ctx_buf;
|
|
}
|
|
|
|
/* Otherwise, move on to the next CPU for this MRQ */
|
|
spin_unlock(&get_infop->nvmet_ctx_list_lock);
|
|
get_infop = get_infop->nvmet_ctx_next_cpu;
|
|
}
|
|
|
|
#endif
|
|
/* Nothing found, all contexts for the MRQ are in-flight */
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_nvmet_unsol_fcp_buffer - Process an unsolicited event data buffer
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @idx: relative index of MRQ vector
|
|
* @nvmebuf: pointer to lpfc nvme command HBQ data structure.
|
|
*
|
|
* This routine is used for processing the WQE associated with a unsolicited
|
|
* event. It first determines whether there is an existing ndlp that matches
|
|
* the DID from the unsolicited WQE. If not, it will create a new one with
|
|
* the DID from the unsolicited WQE. The ELS command from the unsolicited
|
|
* WQE is then used to invoke the proper routine and to set up proper state
|
|
* of the discovery state machine.
|
|
**/
|
|
static void
|
|
lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
|
|
uint32_t idx,
|
|
struct rqb_dmabuf *nvmebuf,
|
|
uint64_t isr_timestamp)
|
|
{
|
|
struct lpfc_nvmet_rcv_ctx *ctxp;
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct fc_frame_header *fc_hdr;
|
|
struct lpfc_nvmet_ctxbuf *ctx_buf;
|
|
struct lpfc_nvmet_ctx_info *current_infop;
|
|
uint32_t *payload;
|
|
uint32_t size, oxid, sid, rc, qno;
|
|
unsigned long iflag;
|
|
int current_cpu;
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
uint32_t id;
|
|
#endif
|
|
|
|
if (!IS_ENABLED(CONFIG_NVME_TARGET_FC))
|
|
return;
|
|
|
|
ctx_buf = NULL;
|
|
if (!nvmebuf || !phba->targetport) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6157 NVMET FCP Drop IO\n");
|
|
oxid = 0;
|
|
size = 0;
|
|
sid = 0;
|
|
ctxp = NULL;
|
|
goto dropit;
|
|
}
|
|
|
|
/*
|
|
* Get a pointer to the context list for this MRQ based on
|
|
* the CPU this MRQ IRQ is associated with. If the CPU association
|
|
* changes from our initial assumption, the context list could
|
|
* be empty, thus it would need to be replenished with the
|
|
* context list from another CPU for this MRQ.
|
|
*/
|
|
current_cpu = smp_processor_id();
|
|
current_infop = lpfc_get_ctx_list(phba, current_cpu, idx);
|
|
spin_lock_irqsave(¤t_infop->nvmet_ctx_list_lock, iflag);
|
|
if (current_infop->nvmet_ctx_list_cnt) {
|
|
list_remove_head(¤t_infop->nvmet_ctx_list,
|
|
ctx_buf, struct lpfc_nvmet_ctxbuf, list);
|
|
current_infop->nvmet_ctx_list_cnt--;
|
|
} else {
|
|
ctx_buf = lpfc_nvmet_replenish_context(phba, current_infop);
|
|
}
|
|
spin_unlock_irqrestore(¤t_infop->nvmet_ctx_list_lock, iflag);
|
|
|
|
fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
|
|
oxid = be16_to_cpu(fc_hdr->fh_ox_id);
|
|
size = nvmebuf->bytes_recv;
|
|
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
if (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV) {
|
|
id = smp_processor_id();
|
|
if (id < LPFC_CHECK_CPU_CNT)
|
|
phba->cpucheck_rcv_io[id]++;
|
|
}
|
|
#endif
|
|
|
|
lpfc_nvmeio_data(phba, "NVMET FCP RCV: xri x%x sz %d CPU %02x\n",
|
|
oxid, size, smp_processor_id());
|
|
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
|
|
if (!ctx_buf) {
|
|
/* Queue this NVME IO to process later */
|
|
spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
|
|
list_add_tail(&nvmebuf->hbuf.list,
|
|
&phba->sli4_hba.lpfc_nvmet_io_wait_list);
|
|
phba->sli4_hba.nvmet_io_wait_cnt++;
|
|
phba->sli4_hba.nvmet_io_wait_total++;
|
|
spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
|
|
iflag);
|
|
|
|
/* Post a brand new DMA buffer to RQ */
|
|
qno = nvmebuf->idx;
|
|
lpfc_post_rq_buffer(
|
|
phba, phba->sli4_hba.nvmet_mrq_hdr[qno],
|
|
phba->sli4_hba.nvmet_mrq_data[qno], 1, qno);
|
|
|
|
atomic_inc(&tgtp->defer_ctx);
|
|
return;
|
|
}
|
|
|
|
payload = (uint32_t *)(nvmebuf->dbuf.virt);
|
|
sid = sli4_sid_from_fc_hdr(fc_hdr);
|
|
|
|
ctxp = (struct lpfc_nvmet_rcv_ctx *)ctx_buf->context;
|
|
if (ctxp->state != LPFC_NVMET_STE_FREE) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6414 NVMET Context corrupt %d %d oxid x%x\n",
|
|
ctxp->state, ctxp->entry_cnt, ctxp->oxid);
|
|
}
|
|
ctxp->wqeq = NULL;
|
|
ctxp->txrdy = NULL;
|
|
ctxp->offset = 0;
|
|
ctxp->phba = phba;
|
|
ctxp->size = size;
|
|
ctxp->oxid = oxid;
|
|
ctxp->sid = sid;
|
|
ctxp->idx = idx;
|
|
ctxp->state = LPFC_NVMET_STE_RCV;
|
|
ctxp->entry_cnt = 1;
|
|
ctxp->flag = 0;
|
|
ctxp->ctxbuf = ctx_buf;
|
|
ctxp->rqb_buffer = (void *)nvmebuf;
|
|
spin_lock_init(&ctxp->ctxlock);
|
|
|
|
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
|
|
if (isr_timestamp) {
|
|
ctxp->ts_isr_cmd = isr_timestamp;
|
|
ctxp->ts_cmd_nvme = ktime_get_ns();
|
|
ctxp->ts_nvme_data = 0;
|
|
ctxp->ts_data_wqput = 0;
|
|
ctxp->ts_isr_data = 0;
|
|
ctxp->ts_data_nvme = 0;
|
|
ctxp->ts_nvme_status = 0;
|
|
ctxp->ts_status_wqput = 0;
|
|
ctxp->ts_isr_status = 0;
|
|
ctxp->ts_status_nvme = 0;
|
|
} else {
|
|
ctxp->ts_cmd_nvme = 0;
|
|
}
|
|
#endif
|
|
|
|
atomic_inc(&tgtp->rcv_fcp_cmd_in);
|
|
/*
|
|
* The calling sequence should be:
|
|
* nvmet_fc_rcv_fcp_req -> lpfc_nvmet_xmt_fcp_op/cmp -> req->done
|
|
* lpfc_nvmet_xmt_fcp_op_cmp should free the allocated ctxp.
|
|
* When we return from nvmet_fc_rcv_fcp_req, all relevant info in
|
|
* the NVME command / FC header is stored, so we are free to repost
|
|
* the buffer.
|
|
*/
|
|
rc = nvmet_fc_rcv_fcp_req(phba->targetport, &ctxp->ctx.fcp_req,
|
|
payload, size);
|
|
|
|
/* Process FCP command */
|
|
if (rc == 0) {
|
|
ctxp->rqb_buffer = NULL;
|
|
atomic_inc(&tgtp->rcv_fcp_cmd_out);
|
|
lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */
|
|
return;
|
|
}
|
|
|
|
/* Processing of FCP command is deferred */
|
|
if (rc == -EOVERFLOW) {
|
|
/*
|
|
* Post a brand new DMA buffer to RQ and defer
|
|
* freeing rcv buffer till .defer_rcv callback
|
|
*/
|
|
qno = nvmebuf->idx;
|
|
lpfc_post_rq_buffer(
|
|
phba, phba->sli4_hba.nvmet_mrq_hdr[qno],
|
|
phba->sli4_hba.nvmet_mrq_data[qno], 1, qno);
|
|
|
|
lpfc_nvmeio_data(phba,
|
|
"NVMET RCV BUSY: xri x%x sz %d from %06x\n",
|
|
oxid, size, sid);
|
|
atomic_inc(&tgtp->rcv_fcp_cmd_out);
|
|
atomic_inc(&tgtp->defer_fod);
|
|
return;
|
|
}
|
|
ctxp->rqb_buffer = nvmebuf;
|
|
|
|
atomic_inc(&tgtp->rcv_fcp_cmd_drop);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6159 FCP Drop IO x%x: err x%x: x%x x%x x%x\n",
|
|
ctxp->oxid, rc,
|
|
atomic_read(&tgtp->rcv_fcp_cmd_in),
|
|
atomic_read(&tgtp->rcv_fcp_cmd_out),
|
|
atomic_read(&tgtp->xmt_fcp_release));
|
|
dropit:
|
|
lpfc_nvmeio_data(phba, "NVMET FCP DROP: xri x%x sz %d from %06x\n",
|
|
oxid, size, sid);
|
|
if (oxid) {
|
|
lpfc_nvmet_defer_release(phba, ctxp);
|
|
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid);
|
|
lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */
|
|
return;
|
|
}
|
|
|
|
if (ctx_buf)
|
|
lpfc_nvmet_ctxbuf_post(phba, ctx_buf);
|
|
|
|
if (nvmebuf)
|
|
lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */
|
|
}
|
|
|
|
/**
|
|
* lpfc_nvmet_unsol_ls_event - Process an unsolicited event from an nvme nport
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @pring: pointer to a SLI ring.
|
|
* @nvmebuf: pointer to received nvme data structure.
|
|
*
|
|
* This routine is used to process an unsolicited event received from a SLI
|
|
* (Service Level Interface) ring. The actual processing of the data buffer
|
|
* associated with the unsolicited event is done by invoking the routine
|
|
* lpfc_nvmet_unsol_ls_buffer() after properly set up the buffer from the
|
|
* SLI RQ on which the unsolicited event was received.
|
|
**/
|
|
void
|
|
lpfc_nvmet_unsol_ls_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *piocb)
|
|
{
|
|
struct lpfc_dmabuf *d_buf;
|
|
struct hbq_dmabuf *nvmebuf;
|
|
|
|
d_buf = piocb->context2;
|
|
nvmebuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
|
|
|
|
if (phba->nvmet_support == 0) {
|
|
lpfc_in_buf_free(phba, &nvmebuf->dbuf);
|
|
return;
|
|
}
|
|
lpfc_nvmet_unsol_ls_buffer(phba, pring, nvmebuf);
|
|
}
|
|
|
|
/**
|
|
* lpfc_nvmet_unsol_fcp_event - Process an unsolicited event from an nvme nport
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @idx: relative index of MRQ vector
|
|
* @nvmebuf: pointer to received nvme data structure.
|
|
*
|
|
* This routine is used to process an unsolicited event received from a SLI
|
|
* (Service Level Interface) ring. The actual processing of the data buffer
|
|
* associated with the unsolicited event is done by invoking the routine
|
|
* lpfc_nvmet_unsol_fcp_buffer() after properly set up the buffer from the
|
|
* SLI RQ on which the unsolicited event was received.
|
|
**/
|
|
void
|
|
lpfc_nvmet_unsol_fcp_event(struct lpfc_hba *phba,
|
|
uint32_t idx,
|
|
struct rqb_dmabuf *nvmebuf,
|
|
uint64_t isr_timestamp)
|
|
{
|
|
if (phba->nvmet_support == 0) {
|
|
lpfc_rq_buf_free(phba, &nvmebuf->hbuf);
|
|
return;
|
|
}
|
|
lpfc_nvmet_unsol_fcp_buffer(phba, idx, nvmebuf,
|
|
isr_timestamp);
|
|
}
|
|
|
|
/**
|
|
* lpfc_nvmet_prep_ls_wqe - Allocate and prepare a lpfc wqe data structure
|
|
* @phba: pointer to a host N_Port data structure.
|
|
* @ctxp: Context info for NVME LS Request
|
|
* @rspbuf: DMA buffer of NVME command.
|
|
* @rspsize: size of the NVME command.
|
|
*
|
|
* This routine is used for allocating a lpfc-WQE data structure from
|
|
* the driver lpfc-WQE free-list and prepare the WQE with the parameters
|
|
* passed into the routine for discovery state machine to issue an Extended
|
|
* Link Service (NVME) commands. It is a generic lpfc-WQE allocation
|
|
* and preparation routine that is used by all the discovery state machine
|
|
* routines and the NVME command-specific fields will be later set up by
|
|
* the individual discovery machine routines after calling this routine
|
|
* allocating and preparing a generic WQE data structure. It fills in the
|
|
* Buffer Descriptor Entries (BDEs), allocates buffers for both command
|
|
* payload and response payload (if expected). The reference count on the
|
|
* ndlp is incremented by 1 and the reference to the ndlp is put into
|
|
* context1 of the WQE data structure for this WQE to hold the ndlp
|
|
* reference for the command's callback function to access later.
|
|
*
|
|
* Return code
|
|
* Pointer to the newly allocated/prepared nvme wqe data structure
|
|
* NULL - when nvme wqe data structure allocation/preparation failed
|
|
**/
|
|
static struct lpfc_iocbq *
|
|
lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *phba,
|
|
struct lpfc_nvmet_rcv_ctx *ctxp,
|
|
dma_addr_t rspbuf, uint16_t rspsize)
|
|
{
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_iocbq *nvmewqe;
|
|
union lpfc_wqe128 *wqe;
|
|
|
|
if (!lpfc_is_link_up(phba)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
|
|
"6104 NVMET prep LS wqe: link err: "
|
|
"NPORT x%x oxid:x%x ste %d\n",
|
|
ctxp->sid, ctxp->oxid, ctxp->state);
|
|
return NULL;
|
|
}
|
|
|
|
/* Allocate buffer for command wqe */
|
|
nvmewqe = lpfc_sli_get_iocbq(phba);
|
|
if (nvmewqe == NULL) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
|
|
"6105 NVMET prep LS wqe: No WQE: "
|
|
"NPORT x%x oxid x%x ste %d\n",
|
|
ctxp->sid, ctxp->oxid, ctxp->state);
|
|
return NULL;
|
|
}
|
|
|
|
ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
|
|
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) ||
|
|
((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
|
|
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
|
|
"6106 NVMET prep LS wqe: No ndlp: "
|
|
"NPORT x%x oxid x%x ste %d\n",
|
|
ctxp->sid, ctxp->oxid, ctxp->state);
|
|
goto nvme_wqe_free_wqeq_exit;
|
|
}
|
|
ctxp->wqeq = nvmewqe;
|
|
|
|
/* prevent preparing wqe with NULL ndlp reference */
|
|
nvmewqe->context1 = lpfc_nlp_get(ndlp);
|
|
if (nvmewqe->context1 == NULL)
|
|
goto nvme_wqe_free_wqeq_exit;
|
|
nvmewqe->context2 = ctxp;
|
|
|
|
wqe = &nvmewqe->wqe;
|
|
memset(wqe, 0, sizeof(union lpfc_wqe));
|
|
|
|
/* Words 0 - 2 */
|
|
wqe->xmit_sequence.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
|
|
wqe->xmit_sequence.bde.tus.f.bdeSize = rspsize;
|
|
wqe->xmit_sequence.bde.addrLow = le32_to_cpu(putPaddrLow(rspbuf));
|
|
wqe->xmit_sequence.bde.addrHigh = le32_to_cpu(putPaddrHigh(rspbuf));
|
|
|
|
/* Word 3 */
|
|
|
|
/* Word 4 */
|
|
|
|
/* Word 5 */
|
|
bf_set(wqe_dfctl, &wqe->xmit_sequence.wge_ctl, 0);
|
|
bf_set(wqe_ls, &wqe->xmit_sequence.wge_ctl, 1);
|
|
bf_set(wqe_la, &wqe->xmit_sequence.wge_ctl, 0);
|
|
bf_set(wqe_rctl, &wqe->xmit_sequence.wge_ctl, FC_RCTL_ELS4_REP);
|
|
bf_set(wqe_type, &wqe->xmit_sequence.wge_ctl, FC_TYPE_NVME);
|
|
|
|
/* Word 6 */
|
|
bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
|
|
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
|
|
bf_set(wqe_xri_tag, &wqe->xmit_sequence.wqe_com, nvmewqe->sli4_xritag);
|
|
|
|
/* Word 7 */
|
|
bf_set(wqe_cmnd, &wqe->xmit_sequence.wqe_com,
|
|
CMD_XMIT_SEQUENCE64_WQE);
|
|
bf_set(wqe_ct, &wqe->xmit_sequence.wqe_com, SLI4_CT_RPI);
|
|
bf_set(wqe_class, &wqe->xmit_sequence.wqe_com, CLASS3);
|
|
bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
|
|
|
|
/* Word 8 */
|
|
wqe->xmit_sequence.wqe_com.abort_tag = nvmewqe->iotag;
|
|
|
|
/* Word 9 */
|
|
bf_set(wqe_reqtag, &wqe->xmit_sequence.wqe_com, nvmewqe->iotag);
|
|
/* Needs to be set by caller */
|
|
bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com, ctxp->oxid);
|
|
|
|
/* Word 10 */
|
|
bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
|
|
bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com, LPFC_WQE_IOD_WRITE);
|
|
bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
|
|
LPFC_WQE_LENLOC_WORD12);
|
|
bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
|
|
|
|
/* Word 11 */
|
|
bf_set(wqe_cqid, &wqe->xmit_sequence.wqe_com,
|
|
LPFC_WQE_CQ_ID_DEFAULT);
|
|
bf_set(wqe_cmd_type, &wqe->xmit_sequence.wqe_com,
|
|
OTHER_COMMAND);
|
|
|
|
/* Word 12 */
|
|
wqe->xmit_sequence.xmit_len = rspsize;
|
|
|
|
nvmewqe->retry = 1;
|
|
nvmewqe->vport = phba->pport;
|
|
nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT;
|
|
nvmewqe->iocb_flag |= LPFC_IO_NVME_LS;
|
|
|
|
/* Xmit NVMET response to remote NPORT <did> */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
|
|
"6039 Xmit NVMET LS response to remote "
|
|
"NPORT x%x iotag:x%x oxid:x%x size:x%x\n",
|
|
ndlp->nlp_DID, nvmewqe->iotag, ctxp->oxid,
|
|
rspsize);
|
|
return nvmewqe;
|
|
|
|
nvme_wqe_free_wqeq_exit:
|
|
nvmewqe->context2 = NULL;
|
|
nvmewqe->context3 = NULL;
|
|
lpfc_sli_release_iocbq(phba, nvmewqe);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static struct lpfc_iocbq *
|
|
lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba,
|
|
struct lpfc_nvmet_rcv_ctx *ctxp)
|
|
{
|
|
struct nvmefc_tgt_fcp_req *rsp = &ctxp->ctx.fcp_req;
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct sli4_sge *sgl;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_iocbq *nvmewqe;
|
|
struct scatterlist *sgel;
|
|
union lpfc_wqe128 *wqe;
|
|
struct ulp_bde64 *bde;
|
|
uint32_t *txrdy;
|
|
dma_addr_t physaddr;
|
|
int i, cnt;
|
|
int do_pbde;
|
|
int xc = 1;
|
|
|
|
if (!lpfc_is_link_up(phba)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6107 NVMET prep FCP wqe: link err:"
|
|
"NPORT x%x oxid x%x ste %d\n",
|
|
ctxp->sid, ctxp->oxid, ctxp->state);
|
|
return NULL;
|
|
}
|
|
|
|
ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
|
|
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) ||
|
|
((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
|
|
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6108 NVMET prep FCP wqe: no ndlp: "
|
|
"NPORT x%x oxid x%x ste %d\n",
|
|
ctxp->sid, ctxp->oxid, ctxp->state);
|
|
return NULL;
|
|
}
|
|
|
|
if (rsp->sg_cnt > lpfc_tgttemplate.max_sgl_segments) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6109 NVMET prep FCP wqe: seg cnt err: "
|
|
"NPORT x%x oxid x%x ste %d cnt %d\n",
|
|
ctxp->sid, ctxp->oxid, ctxp->state,
|
|
phba->cfg_nvme_seg_cnt);
|
|
return NULL;
|
|
}
|
|
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
nvmewqe = ctxp->wqeq;
|
|
if (nvmewqe == NULL) {
|
|
/* Allocate buffer for command wqe */
|
|
nvmewqe = ctxp->ctxbuf->iocbq;
|
|
if (nvmewqe == NULL) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6110 NVMET prep FCP wqe: No "
|
|
"WQE: NPORT x%x oxid x%x ste %d\n",
|
|
ctxp->sid, ctxp->oxid, ctxp->state);
|
|
return NULL;
|
|
}
|
|
ctxp->wqeq = nvmewqe;
|
|
xc = 0; /* create new XRI */
|
|
nvmewqe->sli4_lxritag = NO_XRI;
|
|
nvmewqe->sli4_xritag = NO_XRI;
|
|
}
|
|
|
|
/* Sanity check */
|
|
if (((ctxp->state == LPFC_NVMET_STE_RCV) &&
|
|
(ctxp->entry_cnt == 1)) ||
|
|
(ctxp->state == LPFC_NVMET_STE_DATA)) {
|
|
wqe = &nvmewqe->wqe;
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6111 Wrong state NVMET FCP: %d cnt %d\n",
|
|
ctxp->state, ctxp->entry_cnt);
|
|
return NULL;
|
|
}
|
|
|
|
sgl = (struct sli4_sge *)ctxp->ctxbuf->sglq->sgl;
|
|
switch (rsp->op) {
|
|
case NVMET_FCOP_READDATA:
|
|
case NVMET_FCOP_READDATA_RSP:
|
|
/* From the tsend template, initialize words 7 - 11 */
|
|
memcpy(&wqe->words[7],
|
|
&lpfc_tsend_cmd_template.words[7],
|
|
sizeof(uint32_t) * 5);
|
|
|
|
/* Words 0 - 2 : The first sg segment */
|
|
sgel = &rsp->sg[0];
|
|
physaddr = sg_dma_address(sgel);
|
|
wqe->fcp_tsend.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
|
|
wqe->fcp_tsend.bde.tus.f.bdeSize = sg_dma_len(sgel);
|
|
wqe->fcp_tsend.bde.addrLow = cpu_to_le32(putPaddrLow(physaddr));
|
|
wqe->fcp_tsend.bde.addrHigh =
|
|
cpu_to_le32(putPaddrHigh(physaddr));
|
|
|
|
/* Word 3 */
|
|
wqe->fcp_tsend.payload_offset_len = 0;
|
|
|
|
/* Word 4 */
|
|
wqe->fcp_tsend.relative_offset = ctxp->offset;
|
|
|
|
/* Word 5 */
|
|
wqe->fcp_tsend.reserved = 0;
|
|
|
|
/* Word 6 */
|
|
bf_set(wqe_ctxt_tag, &wqe->fcp_tsend.wqe_com,
|
|
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
|
|
bf_set(wqe_xri_tag, &wqe->fcp_tsend.wqe_com,
|
|
nvmewqe->sli4_xritag);
|
|
|
|
/* Word 7 - set ar later */
|
|
|
|
/* Word 8 */
|
|
wqe->fcp_tsend.wqe_com.abort_tag = nvmewqe->iotag;
|
|
|
|
/* Word 9 */
|
|
bf_set(wqe_reqtag, &wqe->fcp_tsend.wqe_com, nvmewqe->iotag);
|
|
bf_set(wqe_rcvoxid, &wqe->fcp_tsend.wqe_com, ctxp->oxid);
|
|
|
|
/* Word 10 - set wqes later, in template xc=1 */
|
|
if (!xc)
|
|
bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 0);
|
|
|
|
/* Word 11 - set sup, irsp, irsplen later */
|
|
do_pbde = 0;
|
|
|
|
/* Word 12 */
|
|
wqe->fcp_tsend.fcp_data_len = rsp->transfer_length;
|
|
|
|
/* Setup 2 SKIP SGEs */
|
|
sgl->addr_hi = 0;
|
|
sgl->addr_lo = 0;
|
|
sgl->word2 = 0;
|
|
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
|
|
sgl->word2 = cpu_to_le32(sgl->word2);
|
|
sgl->sge_len = 0;
|
|
sgl++;
|
|
sgl->addr_hi = 0;
|
|
sgl->addr_lo = 0;
|
|
sgl->word2 = 0;
|
|
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
|
|
sgl->word2 = cpu_to_le32(sgl->word2);
|
|
sgl->sge_len = 0;
|
|
sgl++;
|
|
if (rsp->op == NVMET_FCOP_READDATA_RSP) {
|
|
atomic_inc(&tgtp->xmt_fcp_read_rsp);
|
|
|
|
/* In template ar=1 wqes=0 sup=0 irsp=0 irsplen=0 */
|
|
|
|
if (rsp->rsplen == LPFC_NVMET_SUCCESS_LEN) {
|
|
if (ndlp->nlp_flag & NLP_SUPPRESS_RSP)
|
|
bf_set(wqe_sup,
|
|
&wqe->fcp_tsend.wqe_com, 1);
|
|
} else {
|
|
bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 1);
|
|
bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 1);
|
|
bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com,
|
|
((rsp->rsplen >> 2) - 1));
|
|
memcpy(&wqe->words[16], rsp->rspaddr,
|
|
rsp->rsplen);
|
|
}
|
|
} else {
|
|
atomic_inc(&tgtp->xmt_fcp_read);
|
|
|
|
/* In template ar=1 wqes=0 sup=0 irsp=0 irsplen=0 */
|
|
bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 0);
|
|
}
|
|
break;
|
|
|
|
case NVMET_FCOP_WRITEDATA:
|
|
/* From the treceive template, initialize words 3 - 11 */
|
|
memcpy(&wqe->words[3],
|
|
&lpfc_treceive_cmd_template.words[3],
|
|
sizeof(uint32_t) * 9);
|
|
|
|
/* Words 0 - 2 : The first sg segment */
|
|
txrdy = dma_pool_alloc(phba->txrdy_payload_pool,
|
|
GFP_KERNEL, &physaddr);
|
|
if (!txrdy) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6041 Bad txrdy buffer: oxid x%x\n",
|
|
ctxp->oxid);
|
|
return NULL;
|
|
}
|
|
ctxp->txrdy = txrdy;
|
|
ctxp->txrdy_phys = physaddr;
|
|
wqe->fcp_treceive.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
|
|
wqe->fcp_treceive.bde.tus.f.bdeSize = TXRDY_PAYLOAD_LEN;
|
|
wqe->fcp_treceive.bde.addrLow =
|
|
cpu_to_le32(putPaddrLow(physaddr));
|
|
wqe->fcp_treceive.bde.addrHigh =
|
|
cpu_to_le32(putPaddrHigh(physaddr));
|
|
|
|
/* Word 4 */
|
|
wqe->fcp_treceive.relative_offset = ctxp->offset;
|
|
|
|
/* Word 6 */
|
|
bf_set(wqe_ctxt_tag, &wqe->fcp_treceive.wqe_com,
|
|
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
|
|
bf_set(wqe_xri_tag, &wqe->fcp_treceive.wqe_com,
|
|
nvmewqe->sli4_xritag);
|
|
|
|
/* Word 7 */
|
|
|
|
/* Word 8 */
|
|
wqe->fcp_treceive.wqe_com.abort_tag = nvmewqe->iotag;
|
|
|
|
/* Word 9 */
|
|
bf_set(wqe_reqtag, &wqe->fcp_treceive.wqe_com, nvmewqe->iotag);
|
|
bf_set(wqe_rcvoxid, &wqe->fcp_treceive.wqe_com, ctxp->oxid);
|
|
|
|
/* Word 10 - in template xc=1 */
|
|
if (!xc)
|
|
bf_set(wqe_xc, &wqe->fcp_treceive.wqe_com, 0);
|
|
|
|
/* Word 11 - set pbde later */
|
|
if (phba->cfg_enable_pbde) {
|
|
do_pbde = 1;
|
|
} else {
|
|
bf_set(wqe_pbde, &wqe->fcp_treceive.wqe_com, 0);
|
|
do_pbde = 0;
|
|
}
|
|
|
|
/* Word 12 */
|
|
wqe->fcp_tsend.fcp_data_len = rsp->transfer_length;
|
|
|
|
/* Setup 1 TXRDY and 1 SKIP SGE */
|
|
txrdy[0] = 0;
|
|
txrdy[1] = cpu_to_be32(rsp->transfer_length);
|
|
txrdy[2] = 0;
|
|
|
|
sgl->addr_hi = putPaddrHigh(physaddr);
|
|
sgl->addr_lo = putPaddrLow(physaddr);
|
|
sgl->word2 = 0;
|
|
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA);
|
|
sgl->word2 = cpu_to_le32(sgl->word2);
|
|
sgl->sge_len = cpu_to_le32(TXRDY_PAYLOAD_LEN);
|
|
sgl++;
|
|
sgl->addr_hi = 0;
|
|
sgl->addr_lo = 0;
|
|
sgl->word2 = 0;
|
|
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
|
|
sgl->word2 = cpu_to_le32(sgl->word2);
|
|
sgl->sge_len = 0;
|
|
sgl++;
|
|
atomic_inc(&tgtp->xmt_fcp_write);
|
|
break;
|
|
|
|
case NVMET_FCOP_RSP:
|
|
/* From the treceive template, initialize words 4 - 11 */
|
|
memcpy(&wqe->words[4],
|
|
&lpfc_trsp_cmd_template.words[4],
|
|
sizeof(uint32_t) * 8);
|
|
|
|
/* Words 0 - 2 */
|
|
physaddr = rsp->rspdma;
|
|
wqe->fcp_trsp.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
|
|
wqe->fcp_trsp.bde.tus.f.bdeSize = rsp->rsplen;
|
|
wqe->fcp_trsp.bde.addrLow =
|
|
cpu_to_le32(putPaddrLow(physaddr));
|
|
wqe->fcp_trsp.bde.addrHigh =
|
|
cpu_to_le32(putPaddrHigh(physaddr));
|
|
|
|
/* Word 3 */
|
|
wqe->fcp_trsp.response_len = rsp->rsplen;
|
|
|
|
/* Word 6 */
|
|
bf_set(wqe_ctxt_tag, &wqe->fcp_trsp.wqe_com,
|
|
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
|
|
bf_set(wqe_xri_tag, &wqe->fcp_trsp.wqe_com,
|
|
nvmewqe->sli4_xritag);
|
|
|
|
/* Word 7 */
|
|
|
|
/* Word 8 */
|
|
wqe->fcp_trsp.wqe_com.abort_tag = nvmewqe->iotag;
|
|
|
|
/* Word 9 */
|
|
bf_set(wqe_reqtag, &wqe->fcp_trsp.wqe_com, nvmewqe->iotag);
|
|
bf_set(wqe_rcvoxid, &wqe->fcp_trsp.wqe_com, ctxp->oxid);
|
|
|
|
/* Word 10 */
|
|
if (xc)
|
|
bf_set(wqe_xc, &wqe->fcp_trsp.wqe_com, 1);
|
|
|
|
/* Word 11 */
|
|
/* In template wqes=0 irsp=0 irsplen=0 - good response */
|
|
if (rsp->rsplen != LPFC_NVMET_SUCCESS_LEN) {
|
|
/* Bad response - embed it */
|
|
bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 1);
|
|
bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 1);
|
|
bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com,
|
|
((rsp->rsplen >> 2) - 1));
|
|
memcpy(&wqe->words[16], rsp->rspaddr, rsp->rsplen);
|
|
}
|
|
do_pbde = 0;
|
|
|
|
/* Word 12 */
|
|
wqe->fcp_trsp.rsvd_12_15[0] = 0;
|
|
|
|
/* Use rspbuf, NOT sg list */
|
|
rsp->sg_cnt = 0;
|
|
sgl->word2 = 0;
|
|
atomic_inc(&tgtp->xmt_fcp_rsp);
|
|
break;
|
|
|
|
default:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
|
|
"6064 Unknown Rsp Op %d\n",
|
|
rsp->op);
|
|
return NULL;
|
|
}
|
|
|
|
nvmewqe->retry = 1;
|
|
nvmewqe->vport = phba->pport;
|
|
nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT;
|
|
nvmewqe->context1 = ndlp;
|
|
|
|
for (i = 0; i < rsp->sg_cnt; i++) {
|
|
sgel = &rsp->sg[i];
|
|
physaddr = sg_dma_address(sgel);
|
|
cnt = sg_dma_len(sgel);
|
|
sgl->addr_hi = putPaddrHigh(physaddr);
|
|
sgl->addr_lo = putPaddrLow(physaddr);
|
|
sgl->word2 = 0;
|
|
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA);
|
|
bf_set(lpfc_sli4_sge_offset, sgl, ctxp->offset);
|
|
if ((i+1) == rsp->sg_cnt)
|
|
bf_set(lpfc_sli4_sge_last, sgl, 1);
|
|
sgl->word2 = cpu_to_le32(sgl->word2);
|
|
sgl->sge_len = cpu_to_le32(cnt);
|
|
if (i == 0) {
|
|
bde = (struct ulp_bde64 *)&wqe->words[13];
|
|
if (do_pbde) {
|
|
/* Words 13-15 (PBDE) */
|
|
bde->addrLow = sgl->addr_lo;
|
|
bde->addrHigh = sgl->addr_hi;
|
|
bde->tus.f.bdeSize =
|
|
le32_to_cpu(sgl->sge_len);
|
|
bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
|
|
bde->tus.w = cpu_to_le32(bde->tus.w);
|
|
} else {
|
|
memset(bde, 0, sizeof(struct ulp_bde64));
|
|
}
|
|
}
|
|
sgl++;
|
|
ctxp->offset += cnt;
|
|
}
|
|
ctxp->state = LPFC_NVMET_STE_DATA;
|
|
ctxp->entry_cnt++;
|
|
return nvmewqe;
|
|
}
|
|
|
|
/**
|
|
* lpfc_nvmet_sol_fcp_abort_cmp - Completion handler for ABTS
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmdwqe: Pointer to driver command WQE object.
|
|
* @wcqe: Pointer to driver response CQE object.
|
|
*
|
|
* The function is called from SLI ring event handler with no
|
|
* lock held. This function is the completion handler for NVME ABTS for FCP cmds
|
|
* The function frees memory resources used for the NVME commands.
|
|
**/
|
|
static void
|
|
lpfc_nvmet_sol_fcp_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
|
|
struct lpfc_wcqe_complete *wcqe)
|
|
{
|
|
struct lpfc_nvmet_rcv_ctx *ctxp;
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
uint32_t status, result;
|
|
unsigned long flags;
|
|
bool released = false;
|
|
|
|
ctxp = cmdwqe->context2;
|
|
status = bf_get(lpfc_wcqe_c_status, wcqe);
|
|
result = wcqe->parameter;
|
|
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
if (ctxp->flag & LPFC_NVMET_ABORT_OP)
|
|
atomic_inc(&tgtp->xmt_fcp_abort_cmpl);
|
|
|
|
ctxp->state = LPFC_NVMET_STE_DONE;
|
|
|
|
/* Check if we already received a free context call
|
|
* and we have completed processing an abort situation.
|
|
*/
|
|
spin_lock_irqsave(&ctxp->ctxlock, flags);
|
|
if ((ctxp->flag & LPFC_NVMET_CTX_RLS) &&
|
|
!(ctxp->flag & LPFC_NVMET_XBUSY)) {
|
|
list_del(&ctxp->list);
|
|
released = true;
|
|
}
|
|
ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
|
|
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
|
|
atomic_inc(&tgtp->xmt_abort_rsp);
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6165 ABORT cmpl: xri x%x flg x%x (%d) "
|
|
"WCQE: %08x %08x %08x %08x\n",
|
|
ctxp->oxid, ctxp->flag, released,
|
|
wcqe->word0, wcqe->total_data_placed,
|
|
result, wcqe->word3);
|
|
|
|
cmdwqe->context2 = NULL;
|
|
cmdwqe->context3 = NULL;
|
|
/*
|
|
* if transport has released ctx, then can reuse it. Otherwise,
|
|
* will be recycled by transport release call.
|
|
*/
|
|
if (released)
|
|
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
|
|
|
|
/* This is the iocbq for the abort, not the command */
|
|
lpfc_sli_release_iocbq(phba, cmdwqe);
|
|
|
|
/* Since iaab/iaar are NOT set, there is no work left.
|
|
* For LPFC_NVMET_XBUSY, lpfc_sli4_nvmet_xri_aborted
|
|
* should have been called already.
|
|
*/
|
|
}
|
|
|
|
/**
|
|
* lpfc_nvmet_unsol_fcp_abort_cmp - Completion handler for ABTS
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmdwqe: Pointer to driver command WQE object.
|
|
* @wcqe: Pointer to driver response CQE object.
|
|
*
|
|
* The function is called from SLI ring event handler with no
|
|
* lock held. This function is the completion handler for NVME ABTS for FCP cmds
|
|
* The function frees memory resources used for the NVME commands.
|
|
**/
|
|
static void
|
|
lpfc_nvmet_unsol_fcp_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
|
|
struct lpfc_wcqe_complete *wcqe)
|
|
{
|
|
struct lpfc_nvmet_rcv_ctx *ctxp;
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
unsigned long flags;
|
|
uint32_t status, result;
|
|
bool released = false;
|
|
|
|
ctxp = cmdwqe->context2;
|
|
status = bf_get(lpfc_wcqe_c_status, wcqe);
|
|
result = wcqe->parameter;
|
|
|
|
if (!ctxp) {
|
|
/* if context is clear, related io alrady complete */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6070 ABTS cmpl: WCQE: %08x %08x %08x %08x\n",
|
|
wcqe->word0, wcqe->total_data_placed,
|
|
result, wcqe->word3);
|
|
return;
|
|
}
|
|
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
if (ctxp->flag & LPFC_NVMET_ABORT_OP)
|
|
atomic_inc(&tgtp->xmt_fcp_abort_cmpl);
|
|
|
|
/* Sanity check */
|
|
if (ctxp->state != LPFC_NVMET_STE_ABORT) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
|
"6112 ABTS Wrong state:%d oxid x%x\n",
|
|
ctxp->state, ctxp->oxid);
|
|
}
|
|
|
|
/* Check if we already received a free context call
|
|
* and we have completed processing an abort situation.
|
|
*/
|
|
ctxp->state = LPFC_NVMET_STE_DONE;
|
|
spin_lock_irqsave(&ctxp->ctxlock, flags);
|
|
if ((ctxp->flag & LPFC_NVMET_CTX_RLS) &&
|
|
!(ctxp->flag & LPFC_NVMET_XBUSY)) {
|
|
list_del(&ctxp->list);
|
|
released = true;
|
|
}
|
|
ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
|
|
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
|
|
atomic_inc(&tgtp->xmt_abort_rsp);
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6316 ABTS cmpl xri x%x flg x%x (%x) "
|
|
"WCQE: %08x %08x %08x %08x\n",
|
|
ctxp->oxid, ctxp->flag, released,
|
|
wcqe->word0, wcqe->total_data_placed,
|
|
result, wcqe->word3);
|
|
|
|
cmdwqe->context2 = NULL;
|
|
cmdwqe->context3 = NULL;
|
|
/*
|
|
* if transport has released ctx, then can reuse it. Otherwise,
|
|
* will be recycled by transport release call.
|
|
*/
|
|
if (released)
|
|
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
|
|
|
|
/* Since iaab/iaar are NOT set, there is no work left.
|
|
* For LPFC_NVMET_XBUSY, lpfc_sli4_nvmet_xri_aborted
|
|
* should have been called already.
|
|
*/
|
|
}
|
|
|
|
/**
|
|
* lpfc_nvmet_xmt_ls_abort_cmp - Completion handler for ABTS
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmdwqe: Pointer to driver command WQE object.
|
|
* @wcqe: Pointer to driver response CQE object.
|
|
*
|
|
* The function is called from SLI ring event handler with no
|
|
* lock held. This function is the completion handler for NVME ABTS for LS cmds
|
|
* The function frees memory resources used for the NVME commands.
|
|
**/
|
|
static void
|
|
lpfc_nvmet_xmt_ls_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
|
|
struct lpfc_wcqe_complete *wcqe)
|
|
{
|
|
struct lpfc_nvmet_rcv_ctx *ctxp;
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
uint32_t status, result;
|
|
|
|
ctxp = cmdwqe->context2;
|
|
status = bf_get(lpfc_wcqe_c_status, wcqe);
|
|
result = wcqe->parameter;
|
|
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
atomic_inc(&tgtp->xmt_ls_abort_cmpl);
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6083 Abort cmpl: ctx %p WCQE:%08x %08x %08x %08x\n",
|
|
ctxp, wcqe->word0, wcqe->total_data_placed,
|
|
result, wcqe->word3);
|
|
|
|
if (!ctxp) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
|
"6415 NVMET LS Abort No ctx: WCQE: "
|
|
"%08x %08x %08x %08x\n",
|
|
wcqe->word0, wcqe->total_data_placed,
|
|
result, wcqe->word3);
|
|
|
|
lpfc_sli_release_iocbq(phba, cmdwqe);
|
|
return;
|
|
}
|
|
|
|
if (ctxp->state != LPFC_NVMET_STE_LS_ABORT) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6416 NVMET LS abort cmpl state mismatch: "
|
|
"oxid x%x: %d %d\n",
|
|
ctxp->oxid, ctxp->state, ctxp->entry_cnt);
|
|
}
|
|
|
|
cmdwqe->context2 = NULL;
|
|
cmdwqe->context3 = NULL;
|
|
lpfc_sli_release_iocbq(phba, cmdwqe);
|
|
kfree(ctxp);
|
|
}
|
|
|
|
static int
|
|
lpfc_nvmet_unsol_issue_abort(struct lpfc_hba *phba,
|
|
struct lpfc_nvmet_rcv_ctx *ctxp,
|
|
uint32_t sid, uint16_t xri)
|
|
{
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct lpfc_iocbq *abts_wqeq;
|
|
union lpfc_wqe128 *wqe_abts;
|
|
struct lpfc_nodelist *ndlp;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6067 ABTS: sid %x xri x%x/x%x\n",
|
|
sid, xri, ctxp->wqeq->sli4_xritag);
|
|
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
|
|
ndlp = lpfc_findnode_did(phba->pport, sid);
|
|
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) ||
|
|
((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
|
|
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
|
|
atomic_inc(&tgtp->xmt_abort_rsp_error);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
|
"6134 Drop ABTS - wrong NDLP state x%x.\n",
|
|
(ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE);
|
|
|
|
/* No failure to an ABTS request. */
|
|
return 0;
|
|
}
|
|
|
|
abts_wqeq = ctxp->wqeq;
|
|
wqe_abts = &abts_wqeq->wqe;
|
|
|
|
/*
|
|
* Since we zero the whole WQE, we need to ensure we set the WQE fields
|
|
* that were initialized in lpfc_sli4_nvmet_alloc.
|
|
*/
|
|
memset(wqe_abts, 0, sizeof(union lpfc_wqe));
|
|
|
|
/* Word 5 */
|
|
bf_set(wqe_dfctl, &wqe_abts->xmit_sequence.wge_ctl, 0);
|
|
bf_set(wqe_ls, &wqe_abts->xmit_sequence.wge_ctl, 1);
|
|
bf_set(wqe_la, &wqe_abts->xmit_sequence.wge_ctl, 0);
|
|
bf_set(wqe_rctl, &wqe_abts->xmit_sequence.wge_ctl, FC_RCTL_BA_ABTS);
|
|
bf_set(wqe_type, &wqe_abts->xmit_sequence.wge_ctl, FC_TYPE_BLS);
|
|
|
|
/* Word 6 */
|
|
bf_set(wqe_ctxt_tag, &wqe_abts->xmit_sequence.wqe_com,
|
|
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
|
|
bf_set(wqe_xri_tag, &wqe_abts->xmit_sequence.wqe_com,
|
|
abts_wqeq->sli4_xritag);
|
|
|
|
/* Word 7 */
|
|
bf_set(wqe_cmnd, &wqe_abts->xmit_sequence.wqe_com,
|
|
CMD_XMIT_SEQUENCE64_WQE);
|
|
bf_set(wqe_ct, &wqe_abts->xmit_sequence.wqe_com, SLI4_CT_RPI);
|
|
bf_set(wqe_class, &wqe_abts->xmit_sequence.wqe_com, CLASS3);
|
|
bf_set(wqe_pu, &wqe_abts->xmit_sequence.wqe_com, 0);
|
|
|
|
/* Word 8 */
|
|
wqe_abts->xmit_sequence.wqe_com.abort_tag = abts_wqeq->iotag;
|
|
|
|
/* Word 9 */
|
|
bf_set(wqe_reqtag, &wqe_abts->xmit_sequence.wqe_com, abts_wqeq->iotag);
|
|
/* Needs to be set by caller */
|
|
bf_set(wqe_rcvoxid, &wqe_abts->xmit_sequence.wqe_com, xri);
|
|
|
|
/* Word 10 */
|
|
bf_set(wqe_dbde, &wqe_abts->xmit_sequence.wqe_com, 1);
|
|
bf_set(wqe_iod, &wqe_abts->xmit_sequence.wqe_com, LPFC_WQE_IOD_WRITE);
|
|
bf_set(wqe_lenloc, &wqe_abts->xmit_sequence.wqe_com,
|
|
LPFC_WQE_LENLOC_WORD12);
|
|
bf_set(wqe_ebde_cnt, &wqe_abts->xmit_sequence.wqe_com, 0);
|
|
bf_set(wqe_qosd, &wqe_abts->xmit_sequence.wqe_com, 0);
|
|
|
|
/* Word 11 */
|
|
bf_set(wqe_cqid, &wqe_abts->xmit_sequence.wqe_com,
|
|
LPFC_WQE_CQ_ID_DEFAULT);
|
|
bf_set(wqe_cmd_type, &wqe_abts->xmit_sequence.wqe_com,
|
|
OTHER_COMMAND);
|
|
|
|
abts_wqeq->vport = phba->pport;
|
|
abts_wqeq->context1 = ndlp;
|
|
abts_wqeq->context2 = ctxp;
|
|
abts_wqeq->context3 = NULL;
|
|
abts_wqeq->rsvd2 = 0;
|
|
/* hba_wqidx should already be setup from command we are aborting */
|
|
abts_wqeq->iocb.ulpCommand = CMD_XMIT_SEQUENCE64_CR;
|
|
abts_wqeq->iocb.ulpLe = 1;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6069 Issue ABTS to xri x%x reqtag x%x\n",
|
|
xri, abts_wqeq->iotag);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *phba,
|
|
struct lpfc_nvmet_rcv_ctx *ctxp,
|
|
uint32_t sid, uint16_t xri)
|
|
{
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct lpfc_iocbq *abts_wqeq;
|
|
union lpfc_wqe128 *abts_wqe;
|
|
struct lpfc_nodelist *ndlp;
|
|
unsigned long flags;
|
|
int rc;
|
|
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
if (!ctxp->wqeq) {
|
|
ctxp->wqeq = ctxp->ctxbuf->iocbq;
|
|
ctxp->wqeq->hba_wqidx = 0;
|
|
}
|
|
|
|
ndlp = lpfc_findnode_did(phba->pport, sid);
|
|
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) ||
|
|
((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
|
|
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
|
|
atomic_inc(&tgtp->xmt_abort_rsp_error);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
|
"6160 Drop ABORT - wrong NDLP state x%x.\n",
|
|
(ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE);
|
|
|
|
/* No failure to an ABTS request. */
|
|
ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
|
|
return 0;
|
|
}
|
|
|
|
/* Issue ABTS for this WQE based on iotag */
|
|
ctxp->abort_wqeq = lpfc_sli_get_iocbq(phba);
|
|
if (!ctxp->abort_wqeq) {
|
|
atomic_inc(&tgtp->xmt_abort_rsp_error);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
|
"6161 ABORT failed: No wqeqs: "
|
|
"xri: x%x\n", ctxp->oxid);
|
|
/* No failure to an ABTS request. */
|
|
ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
|
|
return 0;
|
|
}
|
|
abts_wqeq = ctxp->abort_wqeq;
|
|
abts_wqe = &abts_wqeq->wqe;
|
|
ctxp->state = LPFC_NVMET_STE_ABORT;
|
|
|
|
/* Announce entry to new IO submit field. */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
|
"6162 ABORT Request to rport DID x%06x "
|
|
"for xri x%x x%x\n",
|
|
ctxp->sid, ctxp->oxid, ctxp->wqeq->sli4_xritag);
|
|
|
|
/* If the hba is getting reset, this flag is set. It is
|
|
* cleared when the reset is complete and rings reestablished.
|
|
*/
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
/* driver queued commands are in process of being flushed */
|
|
if (phba->hba_flag & HBA_NVME_IOQ_FLUSH) {
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
atomic_inc(&tgtp->xmt_abort_rsp_error);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
|
|
"6163 Driver in reset cleanup - flushing "
|
|
"NVME Req now. hba_flag x%x oxid x%x\n",
|
|
phba->hba_flag, ctxp->oxid);
|
|
lpfc_sli_release_iocbq(phba, abts_wqeq);
|
|
ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
|
|
return 0;
|
|
}
|
|
|
|
/* Outstanding abort is in progress */
|
|
if (abts_wqeq->iocb_flag & LPFC_DRIVER_ABORTED) {
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
atomic_inc(&tgtp->xmt_abort_rsp_error);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
|
|
"6164 Outstanding NVME I/O Abort Request "
|
|
"still pending on oxid x%x\n",
|
|
ctxp->oxid);
|
|
lpfc_sli_release_iocbq(phba, abts_wqeq);
|
|
ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
|
|
return 0;
|
|
}
|
|
|
|
/* Ready - mark outstanding as aborted by driver. */
|
|
abts_wqeq->iocb_flag |= LPFC_DRIVER_ABORTED;
|
|
|
|
/* WQEs are reused. Clear stale data and set key fields to
|
|
* zero like ia, iaab, iaar, xri_tag, and ctxt_tag.
|
|
*/
|
|
memset(abts_wqe, 0, sizeof(union lpfc_wqe));
|
|
|
|
/* word 3 */
|
|
bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG);
|
|
|
|
/* word 7 */
|
|
bf_set(wqe_ct, &abts_wqe->abort_cmd.wqe_com, 0);
|
|
bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
|
|
|
|
/* word 8 - tell the FW to abort the IO associated with this
|
|
* outstanding exchange ID.
|
|
*/
|
|
abts_wqe->abort_cmd.wqe_com.abort_tag = ctxp->wqeq->sli4_xritag;
|
|
|
|
/* word 9 - this is the iotag for the abts_wqe completion. */
|
|
bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com,
|
|
abts_wqeq->iotag);
|
|
|
|
/* word 10 */
|
|
bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1);
|
|
bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
|
|
|
|
/* word 11 */
|
|
bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND);
|
|
bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1);
|
|
bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
|
|
|
|
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
|
|
abts_wqeq->hba_wqidx = ctxp->wqeq->hba_wqidx;
|
|
abts_wqeq->wqe_cmpl = lpfc_nvmet_sol_fcp_abort_cmp;
|
|
abts_wqeq->iocb_cmpl = 0;
|
|
abts_wqeq->iocb_flag |= LPFC_IO_NVME;
|
|
abts_wqeq->context2 = ctxp;
|
|
abts_wqeq->vport = phba->pport;
|
|
rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abts_wqeq);
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
if (rc == WQE_SUCCESS) {
|
|
atomic_inc(&tgtp->xmt_abort_sol);
|
|
return 0;
|
|
}
|
|
|
|
atomic_inc(&tgtp->xmt_abort_rsp_error);
|
|
ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
|
|
lpfc_sli_release_iocbq(phba, abts_wqeq);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
|
"6166 Failed ABORT issue_wqe with status x%x "
|
|
"for oxid x%x.\n",
|
|
rc, ctxp->oxid);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int
|
|
lpfc_nvmet_unsol_fcp_issue_abort(struct lpfc_hba *phba,
|
|
struct lpfc_nvmet_rcv_ctx *ctxp,
|
|
uint32_t sid, uint16_t xri)
|
|
{
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct lpfc_iocbq *abts_wqeq;
|
|
unsigned long flags;
|
|
int rc;
|
|
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
if (!ctxp->wqeq) {
|
|
ctxp->wqeq = ctxp->ctxbuf->iocbq;
|
|
ctxp->wqeq->hba_wqidx = 0;
|
|
}
|
|
|
|
if (ctxp->state == LPFC_NVMET_STE_FREE) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6417 NVMET ABORT ctx freed %d %d oxid x%x\n",
|
|
ctxp->state, ctxp->entry_cnt, ctxp->oxid);
|
|
rc = WQE_BUSY;
|
|
goto aerr;
|
|
}
|
|
ctxp->state = LPFC_NVMET_STE_ABORT;
|
|
ctxp->entry_cnt++;
|
|
rc = lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri);
|
|
if (rc == 0)
|
|
goto aerr;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
abts_wqeq = ctxp->wqeq;
|
|
abts_wqeq->wqe_cmpl = lpfc_nvmet_unsol_fcp_abort_cmp;
|
|
abts_wqeq->iocb_cmpl = NULL;
|
|
abts_wqeq->iocb_flag |= LPFC_IO_NVMET;
|
|
rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abts_wqeq);
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
if (rc == WQE_SUCCESS) {
|
|
return 0;
|
|
}
|
|
|
|
aerr:
|
|
spin_lock_irqsave(&ctxp->ctxlock, flags);
|
|
if (ctxp->flag & LPFC_NVMET_CTX_RLS)
|
|
list_del(&ctxp->list);
|
|
ctxp->flag &= ~(LPFC_NVMET_ABORT_OP | LPFC_NVMET_CTX_RLS);
|
|
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
|
|
|
|
atomic_inc(&tgtp->xmt_abort_rsp_error);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
|
"6135 Failed to Issue ABTS for oxid x%x. Status x%x\n",
|
|
ctxp->oxid, rc);
|
|
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lpfc_nvmet_unsol_ls_issue_abort(struct lpfc_hba *phba,
|
|
struct lpfc_nvmet_rcv_ctx *ctxp,
|
|
uint32_t sid, uint16_t xri)
|
|
{
|
|
struct lpfc_nvmet_tgtport *tgtp;
|
|
struct lpfc_iocbq *abts_wqeq;
|
|
union lpfc_wqe128 *wqe_abts;
|
|
unsigned long flags;
|
|
int rc;
|
|
|
|
if ((ctxp->state == LPFC_NVMET_STE_LS_RCV && ctxp->entry_cnt == 1) ||
|
|
(ctxp->state == LPFC_NVMET_STE_LS_RSP && ctxp->entry_cnt == 2)) {
|
|
ctxp->state = LPFC_NVMET_STE_LS_ABORT;
|
|
ctxp->entry_cnt++;
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
|
"6418 NVMET LS abort state mismatch "
|
|
"IO x%x: %d %d\n",
|
|
ctxp->oxid, ctxp->state, ctxp->entry_cnt);
|
|
ctxp->state = LPFC_NVMET_STE_LS_ABORT;
|
|
}
|
|
|
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
|
if (!ctxp->wqeq) {
|
|
/* Issue ABTS for this WQE based on iotag */
|
|
ctxp->wqeq = lpfc_sli_get_iocbq(phba);
|
|
if (!ctxp->wqeq) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
|
"6068 Abort failed: No wqeqs: "
|
|
"xri: x%x\n", xri);
|
|
/* No failure to an ABTS request. */
|
|
kfree(ctxp);
|
|
return 0;
|
|
}
|
|
}
|
|
abts_wqeq = ctxp->wqeq;
|
|
wqe_abts = &abts_wqeq->wqe;
|
|
|
|
if (lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri) == 0) {
|
|
rc = WQE_BUSY;
|
|
goto out;
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
abts_wqeq->wqe_cmpl = lpfc_nvmet_xmt_ls_abort_cmp;
|
|
abts_wqeq->iocb_cmpl = 0;
|
|
abts_wqeq->iocb_flag |= LPFC_IO_NVME_LS;
|
|
rc = lpfc_sli4_issue_wqe(phba, LPFC_ELS_RING, abts_wqeq);
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
if (rc == WQE_SUCCESS) {
|
|
atomic_inc(&tgtp->xmt_abort_unsol);
|
|
return 0;
|
|
}
|
|
out:
|
|
atomic_inc(&tgtp->xmt_abort_rsp_error);
|
|
abts_wqeq->context2 = NULL;
|
|
abts_wqeq->context3 = NULL;
|
|
lpfc_sli_release_iocbq(phba, abts_wqeq);
|
|
kfree(ctxp);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
|
"6056 Failed to Issue ABTS. Status x%x\n", rc);
|
|
return 0;
|
|
}
|