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1672 lines
51 KiB
C
1672 lines
51 KiB
C
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/*******************************************************************
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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) 2004-2016 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.emulex.com *
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* Portions Copyright (C) 2004-2005 Christoph Hellwig *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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********************************************************************/
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#include <linux/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 <../drivers/nvme/host/nvme.h>
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#include <linux/nvme-fc-driver.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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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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/**
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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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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 (status)
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atomic_inc(&tgtp->xmt_ls_rsp_error);
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else
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atomic_inc(&tgtp->xmt_ls_rsp_cmpl);
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out:
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ctxp = cmdwqe->context2;
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rsp = &ctxp->ctx.ls_req;
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lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
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"6038 %s: Entrypoint: ctx %p status %x/%x\n", __func__,
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ctxp, status, result);
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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_rq_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_rq_post(struct lpfc_hba *phba, struct lpfc_nvmet_rcv_ctx *ctxp,
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struct lpfc_dmabuf *mp)
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{
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if (ctxp) {
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if (ctxp->txrdy) {
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pci_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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ctxp->state = LPFC_NVMET_STE_FREE;
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}
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lpfc_rq_buf_free(phba, mp);
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}
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/**
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* lpfc_nvmet_xmt_fcp_op_cmp - Completion handler for FCP 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 FCP 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_fcp_op_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_fcp_req *rsp;
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struct lpfc_nvmet_rcv_ctx *ctxp;
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uint32_t status, result, op, start_clean;
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ctxp = cmdwqe->context2;
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rsp = &ctxp->ctx.fcp_req;
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op = rsp->op;
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ctxp->flag &= ~LPFC_NVMET_IO_INP;
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status = bf_get(lpfc_wcqe_c_status, wcqe);
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result = wcqe->parameter;
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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 (status) {
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rsp->fcp_error = NVME_SC_DATA_XFER_ERROR;
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rsp->transferred_length = 0;
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atomic_inc(&tgtp->xmt_fcp_rsp_error);
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} else {
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rsp->fcp_error = NVME_SC_SUCCESS;
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if (op == NVMET_FCOP_RSP)
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rsp->transferred_length = rsp->rsplen;
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else
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rsp->transferred_length = rsp->transfer_length;
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atomic_inc(&tgtp->xmt_fcp_rsp_cmpl);
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}
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out:
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if ((op == NVMET_FCOP_READDATA_RSP) ||
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(op == NVMET_FCOP_RSP)) {
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/* Sanity check */
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ctxp->state = LPFC_NVMET_STE_DONE;
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ctxp->entry_cnt++;
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rsp->done(rsp);
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/* Let Abort cmpl repost the context */
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if (!(ctxp->flag & LPFC_NVMET_ABORT_OP))
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lpfc_nvmet_rq_post(phba, ctxp, &ctxp->rqb_buffer->hbuf);
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} else {
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ctxp->entry_cnt++;
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start_clean = offsetof(struct lpfc_iocbq, wqe);
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memset(((char *)cmdwqe) + start_clean, 0,
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(sizeof(struct lpfc_iocbq) - start_clean));
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rsp->done(rsp);
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}
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}
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static int
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lpfc_nvmet_xmt_ls_rsp(struct nvmet_fc_target_port *tgtport,
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struct nvmefc_tgt_ls_req *rsp)
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{
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struct lpfc_nvmet_rcv_ctx *ctxp =
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container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.ls_req);
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struct lpfc_hba *phba = ctxp->phba;
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struct hbq_dmabuf *nvmebuf =
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(struct hbq_dmabuf *)ctxp->rqb_buffer;
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struct lpfc_iocbq *nvmewqeq;
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struct lpfc_nvmet_tgtport *nvmep = tgtport->private;
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struct lpfc_dmabuf dmabuf;
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struct ulp_bde64 bpl;
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int rc;
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lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
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"6023 %s: Entrypoint ctx %p %p\n", __func__,
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ctxp, tgtport);
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nvmewqeq = lpfc_nvmet_prep_ls_wqe(phba, ctxp, rsp->rspdma,
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rsp->rsplen);
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if (nvmewqeq == NULL) {
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atomic_inc(&nvmep->xmt_ls_drop);
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lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
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"6150 LS Drop IO x%x: Prep\n",
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ctxp->oxid);
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lpfc_in_buf_free(phba, &nvmebuf->dbuf);
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lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp,
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ctxp->sid, ctxp->oxid);
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return -ENOMEM;
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}
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/* Save numBdes for bpl2sgl */
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nvmewqeq->rsvd2 = 1;
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nvmewqeq->hba_wqidx = 0;
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nvmewqeq->context3 = &dmabuf;
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dmabuf.virt = &bpl;
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bpl.addrLow = nvmewqeq->wqe.xmit_sequence.bde.addrLow;
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bpl.addrHigh = nvmewqeq->wqe.xmit_sequence.bde.addrHigh;
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bpl.tus.f.bdeSize = rsp->rsplen;
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bpl.tus.f.bdeFlags = 0;
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bpl.tus.w = le32_to_cpu(bpl.tus.w);
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nvmewqeq->wqe_cmpl = lpfc_nvmet_xmt_ls_rsp_cmp;
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nvmewqeq->iocb_cmpl = NULL;
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nvmewqeq->context2 = ctxp;
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|
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||
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rc = lpfc_sli4_issue_wqe(phba, LPFC_ELS_RING, nvmewqeq);
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if (rc == WQE_SUCCESS) {
|
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/*
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|
* Okay to repost buffer here, but wait till cmpl
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|
* before freeing ctxp and iocbq.
|
||
|
*/
|
||
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lpfc_in_buf_free(phba, &nvmebuf->dbuf);
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ctxp->rqb_buffer = 0;
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|
atomic_inc(&nvmep->xmt_ls_rsp);
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|
return 0;
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|
}
|
||
|
/* Give back resources */
|
||
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atomic_inc(&nvmep->xmt_ls_drop);
|
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|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
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|
"6151 LS Drop IO x%x: Issue %d\n",
|
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|
ctxp->oxid, rc);
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||
|
|
||
|
lpfc_nlp_put(nvmewqeq->context1);
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|
|
||
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lpfc_in_buf_free(phba, &nvmebuf->dbuf);
|
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|
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;
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||
|
struct lpfc_nvmet_rcv_ctx *ctxp =
|
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|
container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req);
|
||
|
struct lpfc_hba *phba = ctxp->phba;
|
||
|
struct lpfc_iocbq *nvmewqeq;
|
||
|
unsigned long iflags;
|
||
|
int rc;
|
||
|
|
||
|
if (rsp->op == NVMET_FCOP_ABORT) {
|
||
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
||
|
"6103 Abort op: oxri x%x %d cnt %d\n",
|
||
|
ctxp->oxid, ctxp->state, ctxp->entry_cnt);
|
||
|
atomic_inc(&lpfc_nvmep->xmt_fcp_abort);
|
||
|
ctxp->entry_cnt++;
|
||
|
ctxp->flag |= LPFC_NVMET_ABORT_OP;
|
||
|
if (ctxp->flag & LPFC_NVMET_IO_INP)
|
||
|
lpfc_nvmet_sol_fcp_issue_abort(phba, ctxp, ctxp->sid,
|
||
|
ctxp->oxid);
|
||
|
else
|
||
|
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
|
||
|
ctxp->oxid);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* Sanity check */
|
||
|
if (ctxp->state == LPFC_NVMET_STE_ABORT) {
|
||
|
atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
||
|
"6102 Bad state IO x%x aborted\n",
|
||
|
ctxp->oxid);
|
||
|
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);
|
||
|
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;
|
||
|
|
||
|
/* For now we take hbalock */
|
||
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
||
|
rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, nvmewqeq);
|
||
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
||
|
if (rc == WQE_SUCCESS) {
|
||
|
ctxp->flag |= LPFC_NVMET_IO_INP;
|
||
|
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;
|
||
|
aerr:
|
||
|
return -ENXIO;
|
||
|
}
|
||
|
|
||
|
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 */
|
||
|
complete(&tport->tport_unreg_done);
|
||
|
}
|
||
|
|
||
|
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,
|
||
|
|
||
|
.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),
|
||
|
};
|
||
|
|
||
|
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 = 0;
|
||
|
|
||
|
if (phba->targetport)
|
||
|
return 0;
|
||
|
|
||
|
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;
|
||
|
|
||
|
lpfc_tgttemplate.max_hw_queues = phba->cfg_nvme_io_channel;
|
||
|
lpfc_tgttemplate.max_sgl_segments = phba->cfg_sg_seg_cnt;
|
||
|
lpfc_tgttemplate.target_features = NVMET_FCTGTFEAT_READDATA_RSP |
|
||
|
NVMET_FCTGTFEAT_NEEDS_CMD_CPUSCHED;
|
||
|
|
||
|
error = nvmet_fc_register_targetport(&pinfo, &lpfc_tgttemplate,
|
||
|
&phba->pcidev->dev,
|
||
|
&phba->targetport);
|
||
|
if (error) {
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
|
||
|
"6025 Cannot register NVME targetport "
|
||
|
"x%x\n", error);
|
||
|
phba->targetport = NULL;
|
||
|
} 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\n",
|
||
|
phba->targetport, tgtp,
|
||
|
pinfo.port_name, pinfo.node_name);
|
||
|
|
||
|
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_rsp, 0);
|
||
|
atomic_set(&tgtp->xmt_ls_drop, 0);
|
||
|
atomic_set(&tgtp->xmt_ls_rsp_error, 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_abort, 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_rsp_cmpl, 0);
|
||
|
atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
|
||
|
atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
|
||
|
atomic_set(&tgtp->xmt_abort_rsp, 0);
|
||
|
atomic_set(&tgtp->xmt_abort_rsp_error, 0);
|
||
|
atomic_set(&tgtp->xmt_abort_cmpl, 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;
|
||
|
}
|
||
|
|
||
|
void
|
||
|
lpfc_nvmet_destroy_targetport(struct lpfc_hba *phba)
|
||
|
{
|
||
|
struct lpfc_nvmet_tgtport *tgtp;
|
||
|
|
||
|
if (phba->nvmet_support == 0)
|
||
|
return;
|
||
|
if (phba->targetport) {
|
||
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
||
|
init_completion(&tgtp->tport_unreg_done);
|
||
|
nvmet_fc_unregister_targetport(phba->targetport);
|
||
|
wait_for_completion_timeout(&tgtp->tport_unreg_done, 5);
|
||
|
}
|
||
|
phba->targetport = NULL;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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)
|
||
|
{
|
||
|
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;
|
||
|
|
||
|
if (!nvmebuf || !phba->targetport) {
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
||
|
"6154 LS Drop IO\n");
|
||
|
goto dropit;
|
||
|
}
|
||
|
|
||
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
||
|
payload = (uint32_t *)(nvmebuf->dbuf.virt);
|
||
|
fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
|
||
|
size = bf_get(lpfc_rcqe_length, &nvmebuf->cq_event.cqe.rcqe_cmpl);
|
||
|
oxid = be16_to_cpu(fc_hdr->fh_ox_id);
|
||
|
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:
|
||
|
if (nvmebuf)
|
||
|
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_RCV;
|
||
|
ctxp->rqb_buffer = (void *)nvmebuf;
|
||
|
/*
|
||
|
* 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 %s: ctx %p sz %d rc %d: %08x %08x %08x "
|
||
|
"%08x %08x %08x\n", __func__, ctxp, size, rc,
|
||
|
*payload, *(payload+1), *(payload+2),
|
||
|
*(payload+3), *(payload+4), *(payload+5));
|
||
|
if (rc == 0) {
|
||
|
atomic_inc(&tgtp->rcv_ls_req_out);
|
||
|
return;
|
||
|
}
|
||
|
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 */
|
||
|
if (nvmebuf)
|
||
|
lpfc_in_buf_free(phba, &nvmebuf->dbuf);
|
||
|
|
||
|
atomic_inc(&tgtp->xmt_ls_abort);
|
||
|
lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp, sid, oxid);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* lpfc_nvmet_unsol_fcp_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_fcp_buffer(struct lpfc_hba *phba,
|
||
|
struct lpfc_sli_ring *pring,
|
||
|
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;
|
||
|
uint32_t *payload;
|
||
|
uint32_t size, oxid, sid, rc;
|
||
|
|
||
|
oxid = 0;
|
||
|
if (!nvmebuf || !phba->targetport) {
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
||
|
"6157 FCP Drop IO\n");
|
||
|
goto dropit;
|
||
|
}
|
||
|
|
||
|
|
||
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
||
|
payload = (uint32_t *)(nvmebuf->dbuf.virt);
|
||
|
fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
|
||
|
size = nvmebuf->bytes_recv;
|
||
|
oxid = be16_to_cpu(fc_hdr->fh_ox_id);
|
||
|
sid = sli4_sid_from_fc_hdr(fc_hdr);
|
||
|
|
||
|
ctxp = (struct lpfc_nvmet_rcv_ctx *)nvmebuf->context;
|
||
|
if (ctxp == NULL) {
|
||
|
atomic_inc(&tgtp->rcv_fcp_cmd_drop);
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
||
|
"6158 FCP Drop IO x%x: Alloc\n",
|
||
|
oxid);
|
||
|
lpfc_nvmet_rq_post(phba, NULL, &nvmebuf->hbuf);
|
||
|
/* Cannot send ABTS without context */
|
||
|
return;
|
||
|
}
|
||
|
memset(ctxp, 0, sizeof(ctxp->ctx));
|
||
|
ctxp->wqeq = NULL;
|
||
|
ctxp->txrdy = NULL;
|
||
|
ctxp->offset = 0;
|
||
|
ctxp->phba = phba;
|
||
|
ctxp->size = size;
|
||
|
ctxp->oxid = oxid;
|
||
|
ctxp->sid = sid;
|
||
|
ctxp->state = LPFC_NVMET_STE_RCV;
|
||
|
ctxp->rqb_buffer = nvmebuf;
|
||
|
ctxp->entry_cnt = 1;
|
||
|
ctxp->flag = 0;
|
||
|
|
||
|
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.
|
||
|
*/
|
||
|
rc = nvmet_fc_rcv_fcp_req(phba->targetport, &ctxp->ctx.fcp_req,
|
||
|
payload, size);
|
||
|
|
||
|
/* Process FCP command */
|
||
|
if (rc == 0) {
|
||
|
atomic_inc(&tgtp->rcv_fcp_cmd_out);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
atomic_inc(&tgtp->rcv_fcp_cmd_drop);
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
||
|
"6159 FCP Drop IO x%x: nvmet_fc_rcv_fcp_req x%x\n",
|
||
|
ctxp->oxid, rc);
|
||
|
dropit:
|
||
|
if (oxid) {
|
||
|
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
if (nvmebuf) {
|
||
|
nvmebuf->iocbq->hba_wqidx = 0;
|
||
|
/* We assume a rcv'ed cmd ALWAYs fits into 1 buffer */
|
||
|
lpfc_nvmet_rq_post(phba, NULL, &nvmebuf->hbuf);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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.
|
||
|
* @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_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,
|
||
|
struct lpfc_sli_ring *pring,
|
||
|
struct rqb_dmabuf *nvmebuf,
|
||
|
uint64_t isr_timestamp)
|
||
|
{
|
||
|
if (phba->nvmet_support == 0) {
|
||
|
lpfc_nvmet_rq_post(phba, NULL, &nvmebuf->hbuf);
|
||
|
return;
|
||
|
}
|
||
|
lpfc_nvmet_unsol_fcp_buffer(phba, pring, 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_wqe *wqe;
|
||
|
|
||
|
if (!lpfc_is_link_up(phba)) {
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
|
||
|
"6104 lpfc_nvmet_prep_ls_wqe: link err: "
|
||
|
"NPORT x%x oxid:x%x\n",
|
||
|
ctxp->sid, ctxp->oxid);
|
||
|
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 lpfc_nvmet_prep_ls_wqe: No WQE: "
|
||
|
"NPORT x%x oxid:x%x\n",
|
||
|
ctxp->sid, ctxp->oxid);
|
||
|
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 lpfc_nvmet_prep_ls_wqe: No ndlp: "
|
||
|
"NPORT x%x oxid:x%x\n",
|
||
|
ctxp->sid, ctxp->oxid);
|
||
|
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_DD_SOL_CTL);
|
||
|
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 NVME response to remote NPORT <did> */
|
||
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
|
||
|
"6039 Xmit NVME 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;
|
||
|
uint32_t *txrdy;
|
||
|
dma_addr_t physaddr;
|
||
|
int i, cnt;
|
||
|
int xc = 1;
|
||
|
|
||
|
if (!lpfc_is_link_up(phba)) {
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
||
|
"6107 lpfc_nvmet_prep_fcp_wqe: link err:"
|
||
|
"NPORT x%x oxid:x%x\n", ctxp->sid,
|
||
|
ctxp->oxid);
|
||
|
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 lpfc_nvmet_prep_fcp_wqe: no ndlp: "
|
||
|
"NPORT x%x oxid:x%x\n",
|
||
|
ctxp->sid, ctxp->oxid);
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
if (rsp->sg_cnt > phba->cfg_sg_seg_cnt) {
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
||
|
"6109 lpfc_nvmet_prep_fcp_wqe: seg cnt err: "
|
||
|
"NPORT x%x oxid:x%x\n",
|
||
|
ctxp->sid, ctxp->oxid);
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
|
||
|
nvmewqe = ctxp->wqeq;
|
||
|
if (nvmewqe == NULL) {
|
||
|
/* Allocate buffer for command wqe */
|
||
|
nvmewqe = ctxp->rqb_buffer->iocbq;
|
||
|
if (nvmewqe == NULL) {
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
||
|
"6110 lpfc_nvmet_prep_fcp_wqe: No "
|
||
|
"WQE: NPORT x%x oxid:x%x\n",
|
||
|
ctxp->sid, ctxp->oxid);
|
||
|
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) &&
|
||
|
(ctxp->entry_cnt > 1))) {
|
||
|
wqe = (union lpfc_wqe128 *)&nvmewqe->wqe;
|
||
|
} else {
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
|
||
|
"6111 Wrong state %s: %d cnt %d\n",
|
||
|
__func__, ctxp->state, ctxp->entry_cnt);
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
sgl = (struct sli4_sge *)ctxp->rqb_buffer->sglq->sgl;
|
||
|
switch (rsp->op) {
|
||
|
case NVMET_FCOP_READDATA:
|
||
|
case NVMET_FCOP_READDATA_RSP:
|
||
|
/* 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 */
|
||
|
|
||
|
/* 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 */
|
||
|
bf_set(wqe_cmnd, &wqe->fcp_tsend.wqe_com, CMD_FCP_TSEND64_WQE);
|
||
|
|
||
|
/* 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 */
|
||
|
bf_set(wqe_nvme, &wqe->fcp_tsend.wqe_com, 1);
|
||
|
bf_set(wqe_dbde, &wqe->fcp_tsend.wqe_com, 1);
|
||
|
bf_set(wqe_iod, &wqe->fcp_tsend.wqe_com, LPFC_WQE_IOD_WRITE);
|
||
|
bf_set(wqe_lenloc, &wqe->fcp_tsend.wqe_com,
|
||
|
LPFC_WQE_LENLOC_WORD12);
|
||
|
bf_set(wqe_ebde_cnt, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, xc);
|
||
|
bf_set(wqe_nvme, &wqe->fcp_tsend.wqe_com, 1);
|
||
|
if (phba->cfg_nvme_oas)
|
||
|
bf_set(wqe_oas, &wqe->fcp_tsend.wqe_com, 1);
|
||
|
|
||
|
/* Word 11 */
|
||
|
bf_set(wqe_cqid, &wqe->fcp_tsend.wqe_com,
|
||
|
LPFC_WQE_CQ_ID_DEFAULT);
|
||
|
bf_set(wqe_cmd_type, &wqe->fcp_tsend.wqe_com,
|
||
|
FCP_COMMAND_TSEND);
|
||
|
|
||
|
/* 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);
|
||
|
bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 1);
|
||
|
if ((ndlp->nlp_flag & NLP_SUPPRESS_RSP) &&
|
||
|
(rsp->rsplen == 12)) {
|
||
|
bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 1);
|
||
|
bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
} else {
|
||
|
bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
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);
|
||
|
|
||
|
bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
}
|
||
|
ctxp->state = LPFC_NVMET_STE_DATA;
|
||
|
break;
|
||
|
|
||
|
case NVMET_FCOP_WRITEDATA:
|
||
|
/* Words 0 - 2 : The first sg segment */
|
||
|
txrdy = pci_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 3 */
|
||
|
wqe->fcp_treceive.payload_offset_len = TXRDY_PAYLOAD_LEN;
|
||
|
|
||
|
/* Word 4 */
|
||
|
wqe->fcp_treceive.relative_offset = ctxp->offset;
|
||
|
|
||
|
/* Word 5 */
|
||
|
|
||
|
/* 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 */
|
||
|
bf_set(wqe_ar, &wqe->fcp_treceive.wqe_com, 0);
|
||
|
bf_set(wqe_cmnd, &wqe->fcp_treceive.wqe_com,
|
||
|
CMD_FCP_TRECEIVE64_WQE);
|
||
|
|
||
|
/* 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 */
|
||
|
bf_set(wqe_nvme, &wqe->fcp_treceive.wqe_com, 1);
|
||
|
bf_set(wqe_dbde, &wqe->fcp_treceive.wqe_com, 1);
|
||
|
bf_set(wqe_iod, &wqe->fcp_treceive.wqe_com, LPFC_WQE_IOD_READ);
|
||
|
bf_set(wqe_lenloc, &wqe->fcp_treceive.wqe_com,
|
||
|
LPFC_WQE_LENLOC_WORD12);
|
||
|
bf_set(wqe_xc, &wqe->fcp_treceive.wqe_com, xc);
|
||
|
bf_set(wqe_wqes, &wqe->fcp_treceive.wqe_com, 0);
|
||
|
bf_set(wqe_irsp, &wqe->fcp_treceive.wqe_com, 0);
|
||
|
bf_set(wqe_irsplen, &wqe->fcp_treceive.wqe_com, 0);
|
||
|
bf_set(wqe_nvme, &wqe->fcp_treceive.wqe_com, 1);
|
||
|
if (phba->cfg_nvme_oas)
|
||
|
bf_set(wqe_oas, &wqe->fcp_treceive.wqe_com, 1);
|
||
|
|
||
|
/* Word 11 */
|
||
|
bf_set(wqe_cqid, &wqe->fcp_treceive.wqe_com,
|
||
|
LPFC_WQE_CQ_ID_DEFAULT);
|
||
|
bf_set(wqe_cmd_type, &wqe->fcp_treceive.wqe_com,
|
||
|
FCP_COMMAND_TRECEIVE);
|
||
|
bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 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++;
|
||
|
ctxp->state = LPFC_NVMET_STE_DATA;
|
||
|
atomic_inc(&tgtp->xmt_fcp_write);
|
||
|
break;
|
||
|
|
||
|
case NVMET_FCOP_RSP:
|
||
|
/* Words 0 - 2 */
|
||
|
sgel = &rsp->sg[0];
|
||
|
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 4 */
|
||
|
wqe->fcp_trsp.rsvd_4_5[0] = 0;
|
||
|
|
||
|
|
||
|
/* Word 5 */
|
||
|
|
||
|
/* 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 */
|
||
|
bf_set(wqe_ag, &wqe->fcp_trsp.wqe_com, 1);
|
||
|
bf_set(wqe_cmnd, &wqe->fcp_trsp.wqe_com, CMD_FCP_TRSP64_WQE);
|
||
|
|
||
|
/* 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 */
|
||
|
bf_set(wqe_nvme, &wqe->fcp_trsp.wqe_com, 1);
|
||
|
bf_set(wqe_dbde, &wqe->fcp_trsp.wqe_com, 0);
|
||
|
bf_set(wqe_iod, &wqe->fcp_trsp.wqe_com, LPFC_WQE_IOD_WRITE);
|
||
|
bf_set(wqe_lenloc, &wqe->fcp_trsp.wqe_com,
|
||
|
LPFC_WQE_LENLOC_WORD3);
|
||
|
bf_set(wqe_xc, &wqe->fcp_trsp.wqe_com, xc);
|
||
|
bf_set(wqe_nvme, &wqe->fcp_trsp.wqe_com, 1);
|
||
|
if (phba->cfg_nvme_oas)
|
||
|
bf_set(wqe_oas, &wqe->fcp_trsp.wqe_com, 1);
|
||
|
|
||
|
/* Word 11 */
|
||
|
bf_set(wqe_cqid, &wqe->fcp_trsp.wqe_com,
|
||
|
LPFC_WQE_CQ_ID_DEFAULT);
|
||
|
bf_set(wqe_cmd_type, &wqe->fcp_trsp.wqe_com,
|
||
|
FCP_COMMAND_TRSP);
|
||
|
bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0);
|
||
|
ctxp->state = LPFC_NVMET_STE_RSP;
|
||
|
|
||
|
if (rsp->rsplen == LPFC_NVMET_SUCCESS_LEN) {
|
||
|
/* Good response - all zero's on wire */
|
||
|
bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 0);
|
||
|
bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 0);
|
||
|
bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com, 0);
|
||
|
} else {
|
||
|
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);
|
||
|
}
|
||
|
|
||
|
/* 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);
|
||
|
sgl++;
|
||
|
ctxp->offset += 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;
|
||
|
|
||
|
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_abort_cmpl);
|
||
|
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
||
|
"6165 Abort cmpl: xri x%x WCQE: %08x %08x %08x %08x\n",
|
||
|
ctxp->oxid, wcqe->word0, wcqe->total_data_placed,
|
||
|
result, wcqe->word3);
|
||
|
|
||
|
ctxp->state = LPFC_NVMET_STE_DONE;
|
||
|
lpfc_nvmet_rq_post(phba, ctxp, &ctxp->rqb_buffer->hbuf);
|
||
|
|
||
|
cmdwqe->context2 = NULL;
|
||
|
cmdwqe->context3 = NULL;
|
||
|
lpfc_sli_release_iocbq(phba, cmdwqe);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* lpfc_nvmet_xmt_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_xmt_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;
|
||
|
|
||
|
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_abort_cmpl);
|
||
|
|
||
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
||
|
"6070 Abort cmpl: ctx %p WCQE: %08x %08x %08x %08x\n",
|
||
|
ctxp, wcqe->word0, wcqe->total_data_placed,
|
||
|
result, wcqe->word3);
|
||
|
|
||
|
if (ctxp) {
|
||
|
/* Sanity check */
|
||
|
if (ctxp->state != LPFC_NVMET_STE_ABORT) {
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
|
||
|
"6112 ABORT Wrong state:%d oxid x%x\n",
|
||
|
ctxp->state, ctxp->oxid);
|
||
|
}
|
||
|
ctxp->state = LPFC_NVMET_STE_DONE;
|
||
|
lpfc_nvmet_rq_post(phba, ctxp, &ctxp->rqb_buffer->hbuf);
|
||
|
cmdwqe->context2 = NULL;
|
||
|
cmdwqe->context3 = NULL;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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_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) {
|
||
|
cmdwqe->context2 = NULL;
|
||
|
cmdwqe->context3 = NULL;
|
||
|
lpfc_sli_release_iocbq(phba, cmdwqe);
|
||
|
kfree(ctxp);
|
||
|
} else
|
||
|
lpfc_sli_release_iocbq(phba, cmdwqe);
|
||
|
}
|
||
|
|
||
|
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_wqe *wqe_abts;
|
||
|
struct lpfc_nodelist *ndlp;
|
||
|
|
||
|
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
|
||
|
"6067 %s: Entrypoint: sid %x xri %x\n", __func__,
|
||
|
sid, xri);
|
||
|
|
||
|
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_WARNING, LOG_NVME_ABTS,
|
||
|
"6134 Drop ABTS - wrong NDLP state x%x.\n",
|
||
|
ndlp->nlp_state);
|
||
|
|
||
|
/* No failure to an ABTS request. */
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
abts_wqeq = ctxp->wqeq;
|
||
|
wqe_abts = &abts_wqeq->wqe;
|
||
|
ctxp->state = LPFC_NVMET_STE_ABORT;
|
||
|
|
||
|
/*
|
||
|
* 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_wqe *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->rqb_buffer->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_WARNING, LOG_NVME_ABTS,
|
||
|
"6160 Drop ABTS - wrong NDLP state x%x.\n",
|
||
|
ndlp->nlp_state);
|
||
|
|
||
|
/* No failure to an ABTS request. */
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* Issue ABTS for this WQE based on iotag */
|
||
|
ctxp->abort_wqeq = lpfc_sli_get_iocbq(phba);
|
||
|
if (!ctxp->abort_wqeq) {
|
||
|
lpfc_printf_log(phba, KERN_WARNING, LOG_NVME_ABTS,
|
||
|
"6161 Abort failed: No wqeqs: "
|
||
|
"xri: x%x\n", ctxp->oxid);
|
||
|
/* No failure to an ABTS request. */
|
||
|
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_ERR, 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);
|
||
|
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);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* Outstanding abort is in progress */
|
||
|
if (abts_wqeq->iocb_flag & LPFC_DRIVER_ABORTED) {
|
||
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
||
|
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);
|
||
|
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;
|
||
|
rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abts_wqeq);
|
||
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
||
|
if (rc == WQE_SUCCESS)
|
||
|
return 0;
|
||
|
|
||
|
lpfc_sli_release_iocbq(phba, abts_wqeq);
|
||
|
lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
|
||
|
"6166 Failed abts 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->rqb_buffer->iocbq;
|
||
|
ctxp->wqeq->hba_wqidx = 0;
|
||
|
}
|
||
|
|
||
|
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_xmt_fcp_abort_cmp;
|
||
|
abts_wqeq->iocb_cmpl = 0;
|
||
|
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) {
|
||
|
atomic_inc(&tgtp->xmt_abort_rsp);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
aerr:
|
||
|
lpfc_nvmet_rq_post(phba, ctxp, &ctxp->rqb_buffer->hbuf);
|
||
|
atomic_inc(&tgtp->xmt_abort_rsp_error);
|
||
|
lpfc_printf_log(phba, KERN_WARNING, LOG_NVME_ABTS,
|
||
|
"6135 Failed to Issue ABTS for oxid x%x. Status x%x\n",
|
||
|
ctxp->oxid, rc);
|
||
|
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_wqe *wqe_abts;
|
||
|
unsigned long flags;
|
||
|
int rc;
|
||
|
|
||
|
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_WARNING, 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;
|
||
|
lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri);
|
||
|
|
||
|
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_rsp);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
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_WARNING, LOG_NVME_ABTS,
|
||
|
"6056 Failed to Issue ABTS. Status x%x\n", rc);
|
||
|
return 0;
|
||
|
}
|