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Add a bsg ioctl to allow user applications to retrieve the adapter congestion management framework buffer. Link: https://lore.kernel.org/r/20210816162901.121235-15-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
6072 lines
168 KiB
C
6072 lines
168 KiB
C
/*******************************************************************
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* This file is part of the Emulex Linux Device Driver for *
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* Fibre Channel Host Bus Adapters. *
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* Copyright (C) 2017-2021 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) 2009-2015 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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* *
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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/interrupt.h>
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#include <linux/mempool.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/list.h>
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#include <linux/bsg-lib.h>
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#include <linux/vmalloc.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_transport_fc.h>
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#include <scsi/scsi_bsg_fc.h>
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#include <scsi/fc/fc_fs.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_bsg.h"
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#include "lpfc_disc.h"
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#include "lpfc_scsi.h"
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#include "lpfc.h"
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#include "lpfc_logmsg.h"
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#include "lpfc_crtn.h"
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#include "lpfc_debugfs.h"
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#include "lpfc_vport.h"
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#include "lpfc_version.h"
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struct lpfc_bsg_event {
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struct list_head node;
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struct kref kref;
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wait_queue_head_t wq;
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/* Event type and waiter identifiers */
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uint32_t type_mask;
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uint32_t req_id;
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uint32_t reg_id;
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/* next two flags are here for the auto-delete logic */
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unsigned long wait_time_stamp;
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int waiting;
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/* seen and not seen events */
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struct list_head events_to_get;
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struct list_head events_to_see;
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/* driver data associated with the job */
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void *dd_data;
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};
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struct lpfc_bsg_iocb {
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struct lpfc_iocbq *cmdiocbq;
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struct lpfc_dmabuf *rmp;
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struct lpfc_nodelist *ndlp;
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};
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struct lpfc_bsg_mbox {
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LPFC_MBOXQ_t *pmboxq;
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MAILBOX_t *mb;
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struct lpfc_dmabuf *dmabuffers; /* for BIU diags */
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uint8_t *ext; /* extended mailbox data */
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uint32_t mbOffset; /* from app */
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uint32_t inExtWLen; /* from app */
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uint32_t outExtWLen; /* from app */
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};
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#define MENLO_DID 0x0000FC0E
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struct lpfc_bsg_menlo {
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struct lpfc_iocbq *cmdiocbq;
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struct lpfc_dmabuf *rmp;
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};
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#define TYPE_EVT 1
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#define TYPE_IOCB 2
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#define TYPE_MBOX 3
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#define TYPE_MENLO 4
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struct bsg_job_data {
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uint32_t type;
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struct bsg_job *set_job; /* job waiting for this iocb to finish */
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union {
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struct lpfc_bsg_event *evt;
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struct lpfc_bsg_iocb iocb;
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struct lpfc_bsg_mbox mbox;
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struct lpfc_bsg_menlo menlo;
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} context_un;
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};
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struct event_data {
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struct list_head node;
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uint32_t type;
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uint32_t immed_dat;
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void *data;
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uint32_t len;
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};
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#define BUF_SZ_4K 4096
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#define SLI_CT_ELX_LOOPBACK 0x10
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enum ELX_LOOPBACK_CMD {
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ELX_LOOPBACK_XRI_SETUP,
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ELX_LOOPBACK_DATA,
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};
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#define ELX_LOOPBACK_HEADER_SZ \
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(size_t)(&((struct lpfc_sli_ct_request *)NULL)->un)
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struct lpfc_dmabufext {
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struct lpfc_dmabuf dma;
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uint32_t size;
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uint32_t flag;
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};
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static void
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lpfc_free_bsg_buffers(struct lpfc_hba *phba, struct lpfc_dmabuf *mlist)
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{
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struct lpfc_dmabuf *mlast, *next_mlast;
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if (mlist) {
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list_for_each_entry_safe(mlast, next_mlast, &mlist->list,
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list) {
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lpfc_mbuf_free(phba, mlast->virt, mlast->phys);
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list_del(&mlast->list);
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kfree(mlast);
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}
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lpfc_mbuf_free(phba, mlist->virt, mlist->phys);
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kfree(mlist);
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}
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return;
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}
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static struct lpfc_dmabuf *
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lpfc_alloc_bsg_buffers(struct lpfc_hba *phba, unsigned int size,
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int outbound_buffers, struct ulp_bde64 *bpl,
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int *bpl_entries)
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{
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struct lpfc_dmabuf *mlist = NULL;
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struct lpfc_dmabuf *mp;
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unsigned int bytes_left = size;
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/* Verify we can support the size specified */
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if (!size || (size > (*bpl_entries * LPFC_BPL_SIZE)))
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return NULL;
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/* Determine the number of dma buffers to allocate */
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*bpl_entries = (size % LPFC_BPL_SIZE ? size/LPFC_BPL_SIZE + 1 :
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size/LPFC_BPL_SIZE);
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/* Allocate dma buffer and place in BPL passed */
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while (bytes_left) {
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/* Allocate dma buffer */
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mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
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if (!mp) {
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if (mlist)
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lpfc_free_bsg_buffers(phba, mlist);
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return NULL;
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}
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INIT_LIST_HEAD(&mp->list);
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mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys));
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if (!mp->virt) {
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kfree(mp);
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if (mlist)
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lpfc_free_bsg_buffers(phba, mlist);
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return NULL;
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}
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/* Queue it to a linked list */
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if (!mlist)
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mlist = mp;
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else
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list_add_tail(&mp->list, &mlist->list);
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/* Add buffer to buffer pointer list */
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if (outbound_buffers)
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bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
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else
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bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
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bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys));
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bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys));
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bpl->tus.f.bdeSize = (uint16_t)
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(bytes_left >= LPFC_BPL_SIZE ? LPFC_BPL_SIZE :
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bytes_left);
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bytes_left -= bpl->tus.f.bdeSize;
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bpl->tus.w = le32_to_cpu(bpl->tus.w);
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bpl++;
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}
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return mlist;
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}
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static unsigned int
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lpfc_bsg_copy_data(struct lpfc_dmabuf *dma_buffers,
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struct bsg_buffer *bsg_buffers,
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unsigned int bytes_to_transfer, int to_buffers)
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{
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struct lpfc_dmabuf *mp;
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unsigned int transfer_bytes, bytes_copied = 0;
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unsigned int sg_offset, dma_offset;
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unsigned char *dma_address, *sg_address;
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LIST_HEAD(temp_list);
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struct sg_mapping_iter miter;
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unsigned long flags;
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unsigned int sg_flags = SG_MITER_ATOMIC;
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bool sg_valid;
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list_splice_init(&dma_buffers->list, &temp_list);
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list_add(&dma_buffers->list, &temp_list);
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sg_offset = 0;
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if (to_buffers)
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sg_flags |= SG_MITER_FROM_SG;
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else
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sg_flags |= SG_MITER_TO_SG;
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sg_miter_start(&miter, bsg_buffers->sg_list, bsg_buffers->sg_cnt,
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sg_flags);
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local_irq_save(flags);
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sg_valid = sg_miter_next(&miter);
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list_for_each_entry(mp, &temp_list, list) {
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dma_offset = 0;
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while (bytes_to_transfer && sg_valid &&
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(dma_offset < LPFC_BPL_SIZE)) {
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dma_address = mp->virt + dma_offset;
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if (sg_offset) {
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/* Continue previous partial transfer of sg */
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sg_address = miter.addr + sg_offset;
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transfer_bytes = miter.length - sg_offset;
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} else {
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sg_address = miter.addr;
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transfer_bytes = miter.length;
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}
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if (bytes_to_transfer < transfer_bytes)
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transfer_bytes = bytes_to_transfer;
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if (transfer_bytes > (LPFC_BPL_SIZE - dma_offset))
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transfer_bytes = LPFC_BPL_SIZE - dma_offset;
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if (to_buffers)
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memcpy(dma_address, sg_address, transfer_bytes);
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else
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memcpy(sg_address, dma_address, transfer_bytes);
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dma_offset += transfer_bytes;
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sg_offset += transfer_bytes;
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bytes_to_transfer -= transfer_bytes;
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bytes_copied += transfer_bytes;
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if (sg_offset >= miter.length) {
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sg_offset = 0;
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sg_valid = sg_miter_next(&miter);
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}
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}
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}
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sg_miter_stop(&miter);
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local_irq_restore(flags);
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list_del_init(&dma_buffers->list);
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list_splice(&temp_list, &dma_buffers->list);
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return bytes_copied;
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}
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/**
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* lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler
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* @phba: Pointer to HBA context object.
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* @cmdiocbq: Pointer to command iocb.
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* @rspiocbq: Pointer to response iocb.
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*
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* This function is the completion handler for iocbs issued using
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* lpfc_bsg_send_mgmt_cmd function. This function is called by the
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* ring event handler function without any lock held. This function
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* can be called from both worker thread context and interrupt
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* context. This function also can be called from another thread which
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* cleans up the SLI layer objects.
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* This function copies the contents of the response iocb to the
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* response iocb memory object provided by the caller of
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* lpfc_sli_issue_iocb_wait and then wakes up the thread which
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* sleeps for the iocb completion.
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**/
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static void
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lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba,
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struct lpfc_iocbq *cmdiocbq,
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struct lpfc_iocbq *rspiocbq)
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{
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struct bsg_job_data *dd_data;
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struct bsg_job *job;
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struct fc_bsg_reply *bsg_reply;
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IOCB_t *rsp;
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struct lpfc_dmabuf *bmp, *cmp, *rmp;
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struct lpfc_nodelist *ndlp;
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struct lpfc_bsg_iocb *iocb;
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unsigned long flags;
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unsigned int rsp_size;
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int rc = 0;
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dd_data = cmdiocbq->context1;
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/* Determine if job has been aborted */
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spin_lock_irqsave(&phba->ct_ev_lock, flags);
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job = dd_data->set_job;
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if (job) {
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bsg_reply = job->reply;
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/* Prevent timeout handling from trying to abort job */
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job->dd_data = NULL;
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}
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spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
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/* Close the timeout handler abort window */
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spin_lock_irqsave(&phba->hbalock, flags);
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cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
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spin_unlock_irqrestore(&phba->hbalock, flags);
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iocb = &dd_data->context_un.iocb;
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ndlp = iocb->cmdiocbq->context_un.ndlp;
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rmp = iocb->rmp;
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cmp = cmdiocbq->context2;
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bmp = cmdiocbq->context3;
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rsp = &rspiocbq->iocb;
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/* Copy the completed data or set the error status */
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if (job) {
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if (rsp->ulpStatus) {
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if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
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switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
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case IOERR_SEQUENCE_TIMEOUT:
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rc = -ETIMEDOUT;
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break;
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case IOERR_INVALID_RPI:
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rc = -EFAULT;
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break;
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default:
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rc = -EACCES;
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break;
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}
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} else {
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rc = -EACCES;
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}
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} else {
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rsp_size = rsp->un.genreq64.bdl.bdeSize;
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bsg_reply->reply_payload_rcv_len =
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lpfc_bsg_copy_data(rmp, &job->reply_payload,
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rsp_size, 0);
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}
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}
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lpfc_free_bsg_buffers(phba, cmp);
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lpfc_free_bsg_buffers(phba, rmp);
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lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
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kfree(bmp);
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lpfc_nlp_put(ndlp);
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lpfc_sli_release_iocbq(phba, cmdiocbq);
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kfree(dd_data);
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/* Complete the job if the job is still active */
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if (job) {
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bsg_reply->result = rc;
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bsg_job_done(job, bsg_reply->result,
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bsg_reply->reply_payload_rcv_len);
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}
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return;
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}
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/**
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* lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request
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* @job: fc_bsg_job to handle
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**/
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static int
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lpfc_bsg_send_mgmt_cmd(struct bsg_job *job)
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{
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struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
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struct lpfc_hba *phba = vport->phba;
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struct lpfc_rport_data *rdata = fc_bsg_to_rport(job)->dd_data;
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struct lpfc_nodelist *ndlp = rdata->pnode;
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struct fc_bsg_reply *bsg_reply = job->reply;
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struct ulp_bde64 *bpl = NULL;
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uint32_t timeout;
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struct lpfc_iocbq *cmdiocbq = NULL;
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IOCB_t *cmd;
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struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
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int request_nseg;
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int reply_nseg;
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struct bsg_job_data *dd_data;
|
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unsigned long flags;
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uint32_t creg_val;
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int rc = 0;
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int iocb_stat;
|
|
|
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/* in case no data is transferred */
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bsg_reply->reply_payload_rcv_len = 0;
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|
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if (ndlp->nlp_flag & NLP_ELS_SND_MASK)
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return -ENODEV;
|
|
|
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/* allocate our bsg tracking structure */
|
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dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
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lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2733 Failed allocation of dd_data\n");
|
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rc = -ENOMEM;
|
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goto no_dd_data;
|
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}
|
|
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
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if (!cmdiocbq) {
|
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rc = -ENOMEM;
|
|
goto free_dd;
|
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}
|
|
|
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cmd = &cmdiocbq->iocb;
|
|
|
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bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
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if (!bmp) {
|
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rc = -ENOMEM;
|
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goto free_cmdiocbq;
|
|
}
|
|
bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
|
|
if (!bmp->virt) {
|
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rc = -ENOMEM;
|
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goto free_bmp;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&bmp->list);
|
|
|
|
bpl = (struct ulp_bde64 *) bmp->virt;
|
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request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
|
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cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
|
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1, bpl, &request_nseg);
|
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if (!cmp) {
|
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rc = -ENOMEM;
|
|
goto free_bmp;
|
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}
|
|
lpfc_bsg_copy_data(cmp, &job->request_payload,
|
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job->request_payload.payload_len, 1);
|
|
|
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bpl += request_nseg;
|
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reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
|
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rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
|
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bpl, &reply_nseg);
|
|
if (!rmp) {
|
|
rc = -ENOMEM;
|
|
goto free_cmp;
|
|
}
|
|
|
|
cmd->un.genreq64.bdl.ulpIoTag32 = 0;
|
|
cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
|
|
cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
|
|
cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
|
|
cmd->un.genreq64.bdl.bdeSize =
|
|
(request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
|
|
cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
|
|
cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
|
|
cmd->un.genreq64.w5.hcsw.Dfctl = 0;
|
|
cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
|
|
cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT;
|
|
cmd->ulpBdeCount = 1;
|
|
cmd->ulpLe = 1;
|
|
cmd->ulpClass = CLASS3;
|
|
cmd->ulpContext = ndlp->nlp_rpi;
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
cmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
|
|
cmd->ulpOwner = OWN_CHIP;
|
|
cmdiocbq->vport = phba->pport;
|
|
cmdiocbq->context3 = bmp;
|
|
cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
|
|
timeout = phba->fc_ratov * 2;
|
|
cmd->ulpTimeout = timeout;
|
|
|
|
cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp;
|
|
cmdiocbq->context1 = dd_data;
|
|
cmdiocbq->context2 = cmp;
|
|
cmdiocbq->context3 = bmp;
|
|
|
|
dd_data->type = TYPE_IOCB;
|
|
dd_data->set_job = job;
|
|
dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
|
|
dd_data->context_un.iocb.rmp = rmp;
|
|
job->dd_data = dd_data;
|
|
|
|
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
|
|
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
|
|
rc = -EIO ;
|
|
goto free_rmp;
|
|
}
|
|
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
|
|
writel(creg_val, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
|
|
cmdiocbq->context_un.ndlp = lpfc_nlp_get(ndlp);
|
|
if (!cmdiocbq->context_un.ndlp) {
|
|
rc = -ENODEV;
|
|
goto free_rmp;
|
|
}
|
|
|
|
iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
|
|
if (iocb_stat == IOCB_SUCCESS) {
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
/* make sure the I/O had not been completed yet */
|
|
if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) {
|
|
/* open up abort window to timeout handler */
|
|
cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
return 0; /* done for now */
|
|
} else if (iocb_stat == IOCB_BUSY) {
|
|
rc = -EAGAIN;
|
|
} else {
|
|
rc = -EIO;
|
|
}
|
|
|
|
/* iocb failed so cleanup */
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
free_rmp:
|
|
lpfc_free_bsg_buffers(phba, rmp);
|
|
free_cmp:
|
|
lpfc_free_bsg_buffers(phba, cmp);
|
|
free_bmp:
|
|
if (bmp->virt)
|
|
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
|
|
kfree(bmp);
|
|
free_cmdiocbq:
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
free_dd:
|
|
kfree(dd_data);
|
|
no_dd_data:
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
job->dd_data = NULL;
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmdiocbq: Pointer to command iocb.
|
|
* @rspiocbq: Pointer to response iocb.
|
|
*
|
|
* This function is the completion handler for iocbs issued using
|
|
* lpfc_bsg_rport_els_cmp function. This function is called by the
|
|
* ring event handler function without any lock held. This function
|
|
* can be called from both worker thread context and interrupt
|
|
* context. This function also can be called from other thread which
|
|
* cleans up the SLI layer objects.
|
|
* This function copies the contents of the response iocb to the
|
|
* response iocb memory object provided by the caller of
|
|
* lpfc_sli_issue_iocb_wait and then wakes up the thread which
|
|
* sleeps for the iocb completion.
|
|
**/
|
|
static void
|
|
lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *cmdiocbq,
|
|
struct lpfc_iocbq *rspiocbq)
|
|
{
|
|
struct bsg_job_data *dd_data;
|
|
struct bsg_job *job;
|
|
struct fc_bsg_reply *bsg_reply;
|
|
IOCB_t *rsp;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_dmabuf *pcmd = NULL, *prsp = NULL;
|
|
struct fc_bsg_ctels_reply *els_reply;
|
|
uint8_t *rjt_data;
|
|
unsigned long flags;
|
|
unsigned int rsp_size;
|
|
int rc = 0;
|
|
|
|
dd_data = cmdiocbq->context1;
|
|
ndlp = dd_data->context_un.iocb.ndlp;
|
|
cmdiocbq->context1 = ndlp;
|
|
|
|
/* Determine if job has been aborted */
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
job = dd_data->set_job;
|
|
if (job) {
|
|
bsg_reply = job->reply;
|
|
/* Prevent timeout handling from trying to abort job */
|
|
job->dd_data = NULL;
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
/* Close the timeout handler abort window */
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
|
|
rsp = &rspiocbq->iocb;
|
|
pcmd = (struct lpfc_dmabuf *)cmdiocbq->context2;
|
|
prsp = (struct lpfc_dmabuf *)pcmd->list.next;
|
|
|
|
/* Copy the completed job data or determine the job status if job is
|
|
* still active
|
|
*/
|
|
|
|
if (job) {
|
|
if (rsp->ulpStatus == IOSTAT_SUCCESS) {
|
|
rsp_size = rsp->un.elsreq64.bdl.bdeSize;
|
|
bsg_reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
prsp->virt,
|
|
rsp_size);
|
|
} else if (rsp->ulpStatus == IOSTAT_LS_RJT) {
|
|
bsg_reply->reply_payload_rcv_len =
|
|
sizeof(struct fc_bsg_ctels_reply);
|
|
/* LS_RJT data returned in word 4 */
|
|
rjt_data = (uint8_t *)&rsp->un.ulpWord[4];
|
|
els_reply = &bsg_reply->reply_data.ctels_reply;
|
|
els_reply->status = FC_CTELS_STATUS_REJECT;
|
|
els_reply->rjt_data.action = rjt_data[3];
|
|
els_reply->rjt_data.reason_code = rjt_data[2];
|
|
els_reply->rjt_data.reason_explanation = rjt_data[1];
|
|
els_reply->rjt_data.vendor_unique = rjt_data[0];
|
|
} else {
|
|
rc = -EIO;
|
|
}
|
|
}
|
|
|
|
lpfc_els_free_iocb(phba, cmdiocbq);
|
|
|
|
lpfc_nlp_put(ndlp);
|
|
kfree(dd_data);
|
|
|
|
/* Complete the job if the job is still active */
|
|
|
|
if (job) {
|
|
bsg_reply->result = rc;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_rport_els - send an ELS command from a bsg request
|
|
* @job: fc_bsg_job to handle
|
|
**/
|
|
static int
|
|
lpfc_bsg_rport_els(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_rport_data *rdata = fc_bsg_to_rport(job)->dd_data;
|
|
struct lpfc_nodelist *ndlp = rdata->pnode;
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
uint32_t elscmd;
|
|
uint32_t cmdsize;
|
|
struct lpfc_iocbq *cmdiocbq;
|
|
uint16_t rpi = 0;
|
|
struct bsg_job_data *dd_data;
|
|
unsigned long flags;
|
|
uint32_t creg_val;
|
|
int rc = 0;
|
|
|
|
/* in case no data is transferred */
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
|
|
/* verify the els command is not greater than the
|
|
* maximum ELS transfer size.
|
|
*/
|
|
|
|
if (job->request_payload.payload_len > FCELSSIZE) {
|
|
rc = -EINVAL;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
/* allocate our bsg tracking structure */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2735 Failed allocation of dd_data\n");
|
|
rc = -ENOMEM;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
elscmd = bsg_request->rqst_data.r_els.els_code;
|
|
cmdsize = job->request_payload.payload_len;
|
|
|
|
if (!lpfc_nlp_get(ndlp)) {
|
|
rc = -ENODEV;
|
|
goto free_dd_data;
|
|
}
|
|
|
|
/* We will use the allocated dma buffers by prep els iocb for command
|
|
* and response to ensure if the job times out and the request is freed,
|
|
* we won't be dma into memory that is no longer allocated to for the
|
|
* request.
|
|
*/
|
|
|
|
cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp,
|
|
ndlp->nlp_DID, elscmd);
|
|
if (!cmdiocbq) {
|
|
rc = -EIO;
|
|
goto release_ndlp;
|
|
}
|
|
|
|
/* Transfer the request payload to allocated command dma buffer */
|
|
sg_copy_to_buffer(job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt,
|
|
((struct lpfc_dmabuf *)cmdiocbq->context2)->virt,
|
|
cmdsize);
|
|
|
|
rpi = ndlp->nlp_rpi;
|
|
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
cmdiocbq->iocb.ulpContext = phba->sli4_hba.rpi_ids[rpi];
|
|
else
|
|
cmdiocbq->iocb.ulpContext = rpi;
|
|
cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
|
|
cmdiocbq->context1 = dd_data;
|
|
cmdiocbq->context_un.ndlp = ndlp;
|
|
cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp;
|
|
dd_data->type = TYPE_IOCB;
|
|
dd_data->set_job = job;
|
|
dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
|
|
dd_data->context_un.iocb.ndlp = ndlp;
|
|
dd_data->context_un.iocb.rmp = NULL;
|
|
job->dd_data = dd_data;
|
|
|
|
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
|
|
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
|
|
rc = -EIO;
|
|
goto linkdown_err;
|
|
}
|
|
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
|
|
writel(creg_val, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
|
|
cmdiocbq->context1 = lpfc_nlp_get(ndlp);
|
|
if (!cmdiocbq->context1) {
|
|
rc = -EIO;
|
|
goto linkdown_err;
|
|
}
|
|
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
|
|
if (rc == IOCB_SUCCESS) {
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
/* make sure the I/O had not been completed/released */
|
|
if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) {
|
|
/* open up abort window to timeout handler */
|
|
cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
return 0; /* done for now */
|
|
} else if (rc == IOCB_BUSY) {
|
|
rc = -EAGAIN;
|
|
} else {
|
|
rc = -EIO;
|
|
}
|
|
|
|
/* I/O issue failed. Cleanup resources. */
|
|
|
|
linkdown_err:
|
|
lpfc_els_free_iocb(phba, cmdiocbq);
|
|
|
|
release_ndlp:
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
free_dd_data:
|
|
kfree(dd_data);
|
|
|
|
no_dd_data:
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
job->dd_data = NULL;
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_event_free - frees an allocated event structure
|
|
* @kref: Pointer to a kref.
|
|
*
|
|
* Called from kref_put. Back cast the kref into an event structure address.
|
|
* Free any events to get, delete associated nodes, free any events to see,
|
|
* free any data then free the event itself.
|
|
**/
|
|
static void
|
|
lpfc_bsg_event_free(struct kref *kref)
|
|
{
|
|
struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event,
|
|
kref);
|
|
struct event_data *ed;
|
|
|
|
list_del(&evt->node);
|
|
|
|
while (!list_empty(&evt->events_to_get)) {
|
|
ed = list_entry(evt->events_to_get.next, typeof(*ed), node);
|
|
list_del(&ed->node);
|
|
kfree(ed->data);
|
|
kfree(ed);
|
|
}
|
|
|
|
while (!list_empty(&evt->events_to_see)) {
|
|
ed = list_entry(evt->events_to_see.next, typeof(*ed), node);
|
|
list_del(&ed->node);
|
|
kfree(ed->data);
|
|
kfree(ed);
|
|
}
|
|
|
|
kfree(evt->dd_data);
|
|
kfree(evt);
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_event_ref - increments the kref for an event
|
|
* @evt: Pointer to an event structure.
|
|
**/
|
|
static inline void
|
|
lpfc_bsg_event_ref(struct lpfc_bsg_event *evt)
|
|
{
|
|
kref_get(&evt->kref);
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_event_unref - Uses kref_put to free an event structure
|
|
* @evt: Pointer to an event structure.
|
|
**/
|
|
static inline void
|
|
lpfc_bsg_event_unref(struct lpfc_bsg_event *evt)
|
|
{
|
|
kref_put(&evt->kref, lpfc_bsg_event_free);
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_event_new - allocate and initialize a event structure
|
|
* @ev_mask: Mask of events.
|
|
* @ev_reg_id: Event reg id.
|
|
* @ev_req_id: Event request id.
|
|
**/
|
|
static struct lpfc_bsg_event *
|
|
lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id)
|
|
{
|
|
struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL);
|
|
|
|
if (!evt)
|
|
return NULL;
|
|
|
|
INIT_LIST_HEAD(&evt->events_to_get);
|
|
INIT_LIST_HEAD(&evt->events_to_see);
|
|
evt->type_mask = ev_mask;
|
|
evt->req_id = ev_req_id;
|
|
evt->reg_id = ev_reg_id;
|
|
evt->wait_time_stamp = jiffies;
|
|
evt->dd_data = NULL;
|
|
init_waitqueue_head(&evt->wq);
|
|
kref_init(&evt->kref);
|
|
return evt;
|
|
}
|
|
|
|
/**
|
|
* diag_cmd_data_free - Frees an lpfc dma buffer extension
|
|
* @phba: Pointer to HBA context object.
|
|
* @mlist: Pointer to an lpfc dma buffer extension.
|
|
**/
|
|
static int
|
|
diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist)
|
|
{
|
|
struct lpfc_dmabufext *mlast;
|
|
struct pci_dev *pcidev;
|
|
struct list_head head, *curr, *next;
|
|
|
|
if ((!mlist) || (!lpfc_is_link_up(phba) &&
|
|
(phba->link_flag & LS_LOOPBACK_MODE))) {
|
|
return 0;
|
|
}
|
|
|
|
pcidev = phba->pcidev;
|
|
list_add_tail(&head, &mlist->dma.list);
|
|
|
|
list_for_each_safe(curr, next, &head) {
|
|
mlast = list_entry(curr, struct lpfc_dmabufext , dma.list);
|
|
if (mlast->dma.virt)
|
|
dma_free_coherent(&pcidev->dev,
|
|
mlast->size,
|
|
mlast->dma.virt,
|
|
mlast->dma.phys);
|
|
kfree(mlast);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* lpfc_bsg_ct_unsol_event - process an unsolicited CT command
|
|
*
|
|
* This function is called when an unsolicited CT command is received. It
|
|
* forwards the event to any processes registered to receive CT events.
|
|
**/
|
|
int
|
|
lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *piocbq)
|
|
{
|
|
uint32_t evt_req_id = 0;
|
|
uint32_t cmd;
|
|
struct lpfc_dmabuf *dmabuf = NULL;
|
|
struct lpfc_bsg_event *evt;
|
|
struct event_data *evt_dat = NULL;
|
|
struct lpfc_iocbq *iocbq;
|
|
size_t offset = 0;
|
|
struct list_head head;
|
|
struct ulp_bde64 *bde;
|
|
dma_addr_t dma_addr;
|
|
int i;
|
|
struct lpfc_dmabuf *bdeBuf1 = piocbq->context2;
|
|
struct lpfc_dmabuf *bdeBuf2 = piocbq->context3;
|
|
struct lpfc_hbq_entry *hbqe;
|
|
struct lpfc_sli_ct_request *ct_req;
|
|
struct bsg_job *job = NULL;
|
|
struct fc_bsg_reply *bsg_reply;
|
|
struct bsg_job_data *dd_data = NULL;
|
|
unsigned long flags;
|
|
int size = 0;
|
|
|
|
INIT_LIST_HEAD(&head);
|
|
list_add_tail(&head, &piocbq->list);
|
|
|
|
ct_req = (struct lpfc_sli_ct_request *)bdeBuf1->virt;
|
|
evt_req_id = ct_req->FsType;
|
|
cmd = ct_req->CommandResponse.bits.CmdRsp;
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
|
|
if (!(evt->type_mask & FC_REG_CT_EVENT) ||
|
|
evt->req_id != evt_req_id)
|
|
continue;
|
|
|
|
lpfc_bsg_event_ref(evt);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL);
|
|
if (evt_dat == NULL) {
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
lpfc_bsg_event_unref(evt);
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2614 Memory allocation failed for "
|
|
"CT event\n");
|
|
break;
|
|
}
|
|
|
|
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
|
|
/* take accumulated byte count from the last iocbq */
|
|
iocbq = list_entry(head.prev, typeof(*iocbq), list);
|
|
evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len;
|
|
} else {
|
|
list_for_each_entry(iocbq, &head, list) {
|
|
for (i = 0; i < iocbq->iocb.ulpBdeCount; i++)
|
|
evt_dat->len +=
|
|
iocbq->iocb.un.cont64[i].tus.f.bdeSize;
|
|
}
|
|
}
|
|
|
|
evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL);
|
|
if (evt_dat->data == NULL) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2615 Memory allocation failed for "
|
|
"CT event data, size %d\n",
|
|
evt_dat->len);
|
|
kfree(evt_dat);
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
lpfc_bsg_event_unref(evt);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
goto error_ct_unsol_exit;
|
|
}
|
|
|
|
list_for_each_entry(iocbq, &head, list) {
|
|
size = 0;
|
|
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
|
|
bdeBuf1 = iocbq->context2;
|
|
bdeBuf2 = iocbq->context3;
|
|
}
|
|
for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) {
|
|
if (phba->sli3_options &
|
|
LPFC_SLI3_HBQ_ENABLED) {
|
|
if (i == 0) {
|
|
hbqe = (struct lpfc_hbq_entry *)
|
|
&iocbq->iocb.un.ulpWord[0];
|
|
size = hbqe->bde.tus.f.bdeSize;
|
|
dmabuf = bdeBuf1;
|
|
} else if (i == 1) {
|
|
hbqe = (struct lpfc_hbq_entry *)
|
|
&iocbq->iocb.unsli3.
|
|
sli3Words[4];
|
|
size = hbqe->bde.tus.f.bdeSize;
|
|
dmabuf = bdeBuf2;
|
|
}
|
|
if ((offset + size) > evt_dat->len)
|
|
size = evt_dat->len - offset;
|
|
} else {
|
|
size = iocbq->iocb.un.cont64[i].
|
|
tus.f.bdeSize;
|
|
bde = &iocbq->iocb.un.cont64[i];
|
|
dma_addr = getPaddr(bde->addrHigh,
|
|
bde->addrLow);
|
|
dmabuf = lpfc_sli_ringpostbuf_get(phba,
|
|
pring, dma_addr);
|
|
}
|
|
if (!dmabuf) {
|
|
lpfc_printf_log(phba, KERN_ERR,
|
|
LOG_LIBDFC, "2616 No dmabuf "
|
|
"found for iocbq x%px\n",
|
|
iocbq);
|
|
kfree(evt_dat->data);
|
|
kfree(evt_dat);
|
|
spin_lock_irqsave(&phba->ct_ev_lock,
|
|
flags);
|
|
lpfc_bsg_event_unref(evt);
|
|
spin_unlock_irqrestore(
|
|
&phba->ct_ev_lock, flags);
|
|
goto error_ct_unsol_exit;
|
|
}
|
|
memcpy((char *)(evt_dat->data) + offset,
|
|
dmabuf->virt, size);
|
|
offset += size;
|
|
if (evt_req_id != SLI_CT_ELX_LOOPBACK &&
|
|
!(phba->sli3_options &
|
|
LPFC_SLI3_HBQ_ENABLED)) {
|
|
lpfc_sli_ringpostbuf_put(phba, pring,
|
|
dmabuf);
|
|
} else {
|
|
switch (cmd) {
|
|
case ELX_LOOPBACK_DATA:
|
|
if (phba->sli_rev <
|
|
LPFC_SLI_REV4)
|
|
diag_cmd_data_free(phba,
|
|
(struct lpfc_dmabufext
|
|
*)dmabuf);
|
|
break;
|
|
case ELX_LOOPBACK_XRI_SETUP:
|
|
if ((phba->sli_rev ==
|
|
LPFC_SLI_REV2) ||
|
|
(phba->sli3_options &
|
|
LPFC_SLI3_HBQ_ENABLED
|
|
)) {
|
|
lpfc_in_buf_free(phba,
|
|
dmabuf);
|
|
} else {
|
|
lpfc_post_buffer(phba,
|
|
pring,
|
|
1);
|
|
}
|
|
break;
|
|
default:
|
|
if (!(phba->sli3_options &
|
|
LPFC_SLI3_HBQ_ENABLED))
|
|
lpfc_post_buffer(phba,
|
|
pring,
|
|
1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
evt_dat->immed_dat = phba->ctx_idx;
|
|
phba->ctx_idx = (phba->ctx_idx + 1) % LPFC_CT_CTX_MAX;
|
|
/* Provide warning for over-run of the ct_ctx array */
|
|
if (phba->ct_ctx[evt_dat->immed_dat].valid ==
|
|
UNSOL_VALID)
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
|
|
"2717 CT context array entry "
|
|
"[%d] over-run: oxid:x%x, "
|
|
"sid:x%x\n", phba->ctx_idx,
|
|
phba->ct_ctx[
|
|
evt_dat->immed_dat].oxid,
|
|
phba->ct_ctx[
|
|
evt_dat->immed_dat].SID);
|
|
phba->ct_ctx[evt_dat->immed_dat].rxid =
|
|
piocbq->iocb.ulpContext;
|
|
phba->ct_ctx[evt_dat->immed_dat].oxid =
|
|
piocbq->iocb.unsli3.rcvsli3.ox_id;
|
|
phba->ct_ctx[evt_dat->immed_dat].SID =
|
|
piocbq->iocb.un.rcvels.remoteID;
|
|
phba->ct_ctx[evt_dat->immed_dat].valid = UNSOL_VALID;
|
|
} else
|
|
evt_dat->immed_dat = piocbq->iocb.ulpContext;
|
|
|
|
evt_dat->type = FC_REG_CT_EVENT;
|
|
list_add(&evt_dat->node, &evt->events_to_see);
|
|
if (evt_req_id == SLI_CT_ELX_LOOPBACK) {
|
|
wake_up_interruptible(&evt->wq);
|
|
lpfc_bsg_event_unref(evt);
|
|
break;
|
|
}
|
|
|
|
list_move(evt->events_to_see.prev, &evt->events_to_get);
|
|
|
|
dd_data = (struct bsg_job_data *)evt->dd_data;
|
|
job = dd_data->set_job;
|
|
dd_data->set_job = NULL;
|
|
lpfc_bsg_event_unref(evt);
|
|
if (job) {
|
|
bsg_reply = job->reply;
|
|
bsg_reply->reply_payload_rcv_len = size;
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = 0;
|
|
job->dd_data = NULL;
|
|
/* complete the job back to userspace */
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
error_ct_unsol_exit:
|
|
if (!list_empty(&head))
|
|
list_del(&head);
|
|
if ((phba->sli_rev < LPFC_SLI_REV4) &&
|
|
(evt_req_id == SLI_CT_ELX_LOOPBACK))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_ct_unsol_abort - handler ct abort to management plane
|
|
* @phba: Pointer to HBA context object.
|
|
* @dmabuf: pointer to a dmabuf that describes the FC sequence
|
|
*
|
|
* This function handles abort to the CT command toward management plane
|
|
* for SLI4 port.
|
|
*
|
|
* If the pending context of a CT command to management plane present, clears
|
|
* such context and returns 1 for handled; otherwise, it returns 0 indicating
|
|
* no context exists.
|
|
**/
|
|
int
|
|
lpfc_bsg_ct_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf)
|
|
{
|
|
struct fc_frame_header fc_hdr;
|
|
struct fc_frame_header *fc_hdr_ptr = &fc_hdr;
|
|
int ctx_idx, handled = 0;
|
|
uint16_t oxid, rxid;
|
|
uint32_t sid;
|
|
|
|
memcpy(fc_hdr_ptr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
|
|
sid = sli4_sid_from_fc_hdr(fc_hdr_ptr);
|
|
oxid = be16_to_cpu(fc_hdr_ptr->fh_ox_id);
|
|
rxid = be16_to_cpu(fc_hdr_ptr->fh_rx_id);
|
|
|
|
for (ctx_idx = 0; ctx_idx < LPFC_CT_CTX_MAX; ctx_idx++) {
|
|
if (phba->ct_ctx[ctx_idx].valid != UNSOL_VALID)
|
|
continue;
|
|
if (phba->ct_ctx[ctx_idx].rxid != rxid)
|
|
continue;
|
|
if (phba->ct_ctx[ctx_idx].oxid != oxid)
|
|
continue;
|
|
if (phba->ct_ctx[ctx_idx].SID != sid)
|
|
continue;
|
|
phba->ct_ctx[ctx_idx].valid = UNSOL_INVALID;
|
|
handled = 1;
|
|
}
|
|
return handled;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command
|
|
* @job: SET_EVENT fc_bsg_job
|
|
**/
|
|
static int
|
|
lpfc_bsg_hba_set_event(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct set_ct_event *event_req;
|
|
struct lpfc_bsg_event *evt;
|
|
int rc = 0;
|
|
struct bsg_job_data *dd_data = NULL;
|
|
uint32_t ev_mask;
|
|
unsigned long flags;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2612 Received SET_CT_EVENT below minimum "
|
|
"size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
event_req = (struct set_ct_event *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
ev_mask = ((uint32_t)(unsigned long)event_req->type_mask &
|
|
FC_REG_EVENT_MASK);
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
|
|
if (evt->reg_id == event_req->ev_reg_id) {
|
|
lpfc_bsg_event_ref(evt);
|
|
evt->wait_time_stamp = jiffies;
|
|
dd_data = (struct bsg_job_data *)evt->dd_data;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
if (&evt->node == &phba->ct_ev_waiters) {
|
|
/* no event waiting struct yet - first call */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (dd_data == NULL) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2734 Failed allocation of dd_data\n");
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id,
|
|
event_req->ev_req_id);
|
|
if (!evt) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2617 Failed allocation of event "
|
|
"waiter\n");
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
dd_data->type = TYPE_EVT;
|
|
dd_data->set_job = NULL;
|
|
dd_data->context_un.evt = evt;
|
|
evt->dd_data = (void *)dd_data;
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_add(&evt->node, &phba->ct_ev_waiters);
|
|
lpfc_bsg_event_ref(evt);
|
|
evt->wait_time_stamp = jiffies;
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
evt->waiting = 1;
|
|
dd_data->set_job = job; /* for unsolicited command */
|
|
job->dd_data = dd_data; /* for fc transport timeout callback*/
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
return 0; /* call job done later */
|
|
|
|
job_error:
|
|
kfree(dd_data);
|
|
job->dd_data = NULL;
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command
|
|
* @job: GET_EVENT fc_bsg_job
|
|
**/
|
|
static int
|
|
lpfc_bsg_hba_get_event(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct get_ct_event *event_req;
|
|
struct get_ct_event_reply *event_reply;
|
|
struct lpfc_bsg_event *evt, *evt_next;
|
|
struct event_data *evt_dat = NULL;
|
|
unsigned long flags;
|
|
uint32_t rc = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2613 Received GET_CT_EVENT request below "
|
|
"minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
event_req = (struct get_ct_event *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
event_reply = (struct get_ct_event_reply *)
|
|
bsg_reply->reply_data.vendor_reply.vendor_rsp;
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_for_each_entry_safe(evt, evt_next, &phba->ct_ev_waiters, node) {
|
|
if (evt->reg_id == event_req->ev_reg_id) {
|
|
if (list_empty(&evt->events_to_get))
|
|
break;
|
|
lpfc_bsg_event_ref(evt);
|
|
evt->wait_time_stamp = jiffies;
|
|
evt_dat = list_entry(evt->events_to_get.prev,
|
|
struct event_data, node);
|
|
list_del(&evt_dat->node);
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
/* The app may continue to ask for event data until it gets
|
|
* an error indicating that there isn't anymore
|
|
*/
|
|
if (evt_dat == NULL) {
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
rc = -ENOENT;
|
|
goto job_error;
|
|
}
|
|
|
|
if (evt_dat->len > job->request_payload.payload_len) {
|
|
evt_dat->len = job->request_payload.payload_len;
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2618 Truncated event data at %d "
|
|
"bytes\n",
|
|
job->request_payload.payload_len);
|
|
}
|
|
|
|
event_reply->type = evt_dat->type;
|
|
event_reply->immed_data = evt_dat->immed_dat;
|
|
if (evt_dat->len > 0)
|
|
bsg_reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt,
|
|
evt_dat->data, evt_dat->len);
|
|
else
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
|
|
if (evt_dat) {
|
|
kfree(evt_dat->data);
|
|
kfree(evt_dat);
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
lpfc_bsg_event_unref(evt);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
job->dd_data = NULL;
|
|
bsg_reply->result = 0;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return 0;
|
|
|
|
job_error:
|
|
job->dd_data = NULL;
|
|
bsg_reply->result = rc;
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmdiocbq: Pointer to command iocb.
|
|
* @rspiocbq: Pointer to response iocb.
|
|
*
|
|
* This function is the completion handler for iocbs issued using
|
|
* lpfc_issue_ct_rsp_cmp function. This function is called by the
|
|
* ring event handler function without any lock held. This function
|
|
* can be called from both worker thread context and interrupt
|
|
* context. This function also can be called from other thread which
|
|
* cleans up the SLI layer objects.
|
|
* This function copy the contents of the response iocb to the
|
|
* response iocb memory object provided by the caller of
|
|
* lpfc_sli_issue_iocb_wait and then wakes up the thread which
|
|
* sleeps for the iocb completion.
|
|
**/
|
|
static void
|
|
lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *cmdiocbq,
|
|
struct lpfc_iocbq *rspiocbq)
|
|
{
|
|
struct bsg_job_data *dd_data;
|
|
struct bsg_job *job;
|
|
struct fc_bsg_reply *bsg_reply;
|
|
IOCB_t *rsp;
|
|
struct lpfc_dmabuf *bmp, *cmp;
|
|
struct lpfc_nodelist *ndlp;
|
|
unsigned long flags;
|
|
int rc = 0;
|
|
|
|
dd_data = cmdiocbq->context1;
|
|
|
|
/* Determine if job has been aborted */
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
job = dd_data->set_job;
|
|
if (job) {
|
|
/* Prevent timeout handling from trying to abort job */
|
|
job->dd_data = NULL;
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
/* Close the timeout handler abort window */
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
|
|
ndlp = dd_data->context_un.iocb.ndlp;
|
|
cmp = cmdiocbq->context2;
|
|
bmp = cmdiocbq->context3;
|
|
rsp = &rspiocbq->iocb;
|
|
|
|
/* Copy the completed job data or set the error status */
|
|
|
|
if (job) {
|
|
bsg_reply = job->reply;
|
|
if (rsp->ulpStatus) {
|
|
if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
|
|
switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
|
|
case IOERR_SEQUENCE_TIMEOUT:
|
|
rc = -ETIMEDOUT;
|
|
break;
|
|
case IOERR_INVALID_RPI:
|
|
rc = -EFAULT;
|
|
break;
|
|
default:
|
|
rc = -EACCES;
|
|
break;
|
|
}
|
|
} else {
|
|
rc = -EACCES;
|
|
}
|
|
} else {
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
}
|
|
}
|
|
|
|
lpfc_free_bsg_buffers(phba, cmp);
|
|
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
|
|
kfree(bmp);
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
lpfc_nlp_put(ndlp);
|
|
kfree(dd_data);
|
|
|
|
/* Complete the job if the job is still active */
|
|
|
|
if (job) {
|
|
bsg_reply->result = rc;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_ct_rsp - issue a ct response
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: Pointer to the job object.
|
|
* @tag: tag index value into the ports context exchange array.
|
|
* @cmp: Pointer to a cmp dma buffer descriptor.
|
|
* @bmp: Pointer to a bmp dma buffer descriptor.
|
|
* @num_entry: Number of enties in the bde.
|
|
**/
|
|
static int
|
|
lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct bsg_job *job, uint32_t tag,
|
|
struct lpfc_dmabuf *cmp, struct lpfc_dmabuf *bmp,
|
|
int num_entry)
|
|
{
|
|
IOCB_t *icmd;
|
|
struct lpfc_iocbq *ctiocb = NULL;
|
|
int rc = 0;
|
|
struct lpfc_nodelist *ndlp = NULL;
|
|
struct bsg_job_data *dd_data;
|
|
unsigned long flags;
|
|
uint32_t creg_val;
|
|
|
|
ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID);
|
|
if (!ndlp) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
|
|
"2721 ndlp null for oxid %x SID %x\n",
|
|
phba->ct_ctx[tag].rxid,
|
|
phba->ct_ctx[tag].SID);
|
|
return IOCB_ERROR;
|
|
}
|
|
|
|
/* allocate our bsg tracking structure */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2736 Failed allocation of dd_data\n");
|
|
rc = -ENOMEM;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
/* Allocate buffer for command iocb */
|
|
ctiocb = lpfc_sli_get_iocbq(phba);
|
|
if (!ctiocb) {
|
|
rc = -ENOMEM;
|
|
goto no_ctiocb;
|
|
}
|
|
|
|
icmd = &ctiocb->iocb;
|
|
icmd->un.xseq64.bdl.ulpIoTag32 = 0;
|
|
icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
|
|
icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys);
|
|
icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
|
|
icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64));
|
|
icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
|
|
icmd->un.xseq64.w5.hcsw.Dfctl = 0;
|
|
icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL;
|
|
icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
|
|
|
|
/* Fill in rest of iocb */
|
|
icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
|
|
icmd->ulpBdeCount = 1;
|
|
icmd->ulpLe = 1;
|
|
icmd->ulpClass = CLASS3;
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
/* Do not issue unsol response if oxid not marked as valid */
|
|
if (phba->ct_ctx[tag].valid != UNSOL_VALID) {
|
|
rc = IOCB_ERROR;
|
|
goto issue_ct_rsp_exit;
|
|
}
|
|
icmd->ulpContext = phba->ct_ctx[tag].rxid;
|
|
icmd->unsli3.rcvsli3.ox_id = phba->ct_ctx[tag].oxid;
|
|
ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID);
|
|
if (!ndlp) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
|
|
"2721 ndlp null for oxid %x SID %x\n",
|
|
icmd->ulpContext,
|
|
phba->ct_ctx[tag].SID);
|
|
rc = IOCB_ERROR;
|
|
goto issue_ct_rsp_exit;
|
|
}
|
|
|
|
/* get a refernece count so the ndlp doesn't go away while
|
|
* we respond
|
|
*/
|
|
if (!lpfc_nlp_get(ndlp)) {
|
|
rc = IOCB_ERROR;
|
|
goto issue_ct_rsp_exit;
|
|
}
|
|
|
|
icmd->un.ulpWord[3] =
|
|
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
|
|
|
|
/* The exchange is done, mark the entry as invalid */
|
|
phba->ct_ctx[tag].valid = UNSOL_INVALID;
|
|
} else
|
|
icmd->ulpContext = (ushort) tag;
|
|
|
|
icmd->ulpTimeout = phba->fc_ratov * 2;
|
|
|
|
/* Xmit CT response on exchange <xid> */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
|
|
"2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n",
|
|
icmd->ulpContext, icmd->ulpIoTag, tag, phba->link_state);
|
|
|
|
ctiocb->iocb_flag |= LPFC_IO_LIBDFC;
|
|
ctiocb->vport = phba->pport;
|
|
ctiocb->context1 = dd_data;
|
|
ctiocb->context2 = cmp;
|
|
ctiocb->context3 = bmp;
|
|
ctiocb->context_un.ndlp = ndlp;
|
|
ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp;
|
|
|
|
dd_data->type = TYPE_IOCB;
|
|
dd_data->set_job = job;
|
|
dd_data->context_un.iocb.cmdiocbq = ctiocb;
|
|
dd_data->context_un.iocb.ndlp = lpfc_nlp_get(ndlp);
|
|
if (!dd_data->context_un.iocb.ndlp) {
|
|
rc = -IOCB_ERROR;
|
|
goto issue_ct_rsp_exit;
|
|
}
|
|
dd_data->context_un.iocb.rmp = NULL;
|
|
job->dd_data = dd_data;
|
|
|
|
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
|
|
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
|
|
rc = -IOCB_ERROR;
|
|
goto issue_ct_rsp_exit;
|
|
}
|
|
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
|
|
writel(creg_val, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
|
|
if (rc == IOCB_SUCCESS) {
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
/* make sure the I/O had not been completed/released */
|
|
if (ctiocb->iocb_flag & LPFC_IO_LIBDFC) {
|
|
/* open up abort window to timeout handler */
|
|
ctiocb->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
return 0; /* done for now */
|
|
}
|
|
|
|
/* iocb failed so cleanup */
|
|
job->dd_data = NULL;
|
|
lpfc_nlp_put(ndlp);
|
|
|
|
issue_ct_rsp_exit:
|
|
lpfc_sli_release_iocbq(phba, ctiocb);
|
|
no_ctiocb:
|
|
kfree(dd_data);
|
|
no_dd_data:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command
|
|
* @job: SEND_MGMT_RESP fc_bsg_job
|
|
**/
|
|
static int
|
|
lpfc_bsg_send_mgmt_rsp(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
struct ulp_bde64 *bpl;
|
|
struct lpfc_dmabuf *bmp = NULL, *cmp = NULL;
|
|
int bpl_entries;
|
|
uint32_t tag = mgmt_resp->tag;
|
|
unsigned long reqbfrcnt =
|
|
(unsigned long)job->request_payload.payload_len;
|
|
int rc = 0;
|
|
|
|
/* in case no data is transferred */
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
|
|
if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) {
|
|
rc = -ERANGE;
|
|
goto send_mgmt_rsp_exit;
|
|
}
|
|
|
|
bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (!bmp) {
|
|
rc = -ENOMEM;
|
|
goto send_mgmt_rsp_exit;
|
|
}
|
|
|
|
bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
|
|
if (!bmp->virt) {
|
|
rc = -ENOMEM;
|
|
goto send_mgmt_rsp_free_bmp;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&bmp->list);
|
|
bpl = (struct ulp_bde64 *) bmp->virt;
|
|
bpl_entries = (LPFC_BPL_SIZE/sizeof(struct ulp_bde64));
|
|
cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
|
|
1, bpl, &bpl_entries);
|
|
if (!cmp) {
|
|
rc = -ENOMEM;
|
|
goto send_mgmt_rsp_free_bmp;
|
|
}
|
|
lpfc_bsg_copy_data(cmp, &job->request_payload,
|
|
job->request_payload.payload_len, 1);
|
|
|
|
rc = lpfc_issue_ct_rsp(phba, job, tag, cmp, bmp, bpl_entries);
|
|
|
|
if (rc == IOCB_SUCCESS)
|
|
return 0; /* done for now */
|
|
|
|
rc = -EACCES;
|
|
|
|
lpfc_free_bsg_buffers(phba, cmp);
|
|
|
|
send_mgmt_rsp_free_bmp:
|
|
if (bmp->virt)
|
|
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
|
|
kfree(bmp);
|
|
send_mgmt_rsp_exit:
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
job->dd_data = NULL;
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is responsible for preparing driver for diag loopback
|
|
* on device.
|
|
*/
|
|
static int
|
|
lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport **vports;
|
|
struct Scsi_Host *shost;
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_queue *qp = NULL;
|
|
struct lpfc_sli_ring *pring;
|
|
int i = 0;
|
|
|
|
psli = &phba->sli;
|
|
if (!psli)
|
|
return -ENODEV;
|
|
|
|
|
|
if ((phba->link_state == LPFC_HBA_ERROR) ||
|
|
(psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
|
|
(!(psli->sli_flag & LPFC_SLI_ACTIVE)))
|
|
return -EACCES;
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports) {
|
|
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
|
|
shost = lpfc_shost_from_vport(vports[i]);
|
|
scsi_block_requests(shost);
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
} else {
|
|
shost = lpfc_shost_from_vport(phba->pport);
|
|
scsi_block_requests(shost);
|
|
}
|
|
|
|
if (phba->sli_rev != LPFC_SLI_REV4) {
|
|
pring = &psli->sli3_ring[LPFC_FCP_RING];
|
|
lpfc_emptyq_wait(phba, &pring->txcmplq, &phba->hbalock);
|
|
return 0;
|
|
}
|
|
list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
|
|
pring = qp->pring;
|
|
if (!pring || (pring->ringno != LPFC_FCP_RING))
|
|
continue;
|
|
if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
|
|
&pring->ring_lock))
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is responsible for driver exit processing of setting up
|
|
* diag loopback mode on device.
|
|
*/
|
|
static void
|
|
lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba)
|
|
{
|
|
struct Scsi_Host *shost;
|
|
struct lpfc_vport **vports;
|
|
int i;
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports) {
|
|
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
|
|
shost = lpfc_shost_from_vport(vports[i]);
|
|
scsi_unblock_requests(shost);
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
} else {
|
|
shost = lpfc_shost_from_vport(phba->pport);
|
|
scsi_unblock_requests(shost);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: LPFC_BSG_VENDOR_DIAG_MODE
|
|
*
|
|
* This function is responsible for placing an sli3 port into diagnostic
|
|
* loopback mode in order to perform a diagnostic loopback test.
|
|
* All new scsi requests are blocked, a small delay is used to allow the
|
|
* scsi requests to complete then the link is brought down. If the link is
|
|
* is placed in loopback mode then scsi requests are again allowed
|
|
* so the scsi mid-layer doesn't give up on the port.
|
|
* All of this is done in-line.
|
|
*/
|
|
static int
|
|
lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct bsg_job *job)
|
|
{
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct diag_mode_set *loopback_mode;
|
|
uint32_t link_flags;
|
|
uint32_t timeout;
|
|
LPFC_MBOXQ_t *pmboxq = NULL;
|
|
int mbxstatus = MBX_SUCCESS;
|
|
int i = 0;
|
|
int rc = 0;
|
|
|
|
/* no data to return just the return code */
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
|
|
if (job->request_len < sizeof(struct fc_bsg_request) +
|
|
sizeof(struct diag_mode_set)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2738 Received DIAG MODE request size:%d "
|
|
"below the minimum size:%d\n",
|
|
job->request_len,
|
|
(int)(sizeof(struct fc_bsg_request) +
|
|
sizeof(struct diag_mode_set)));
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
rc = lpfc_bsg_diag_mode_enter(phba);
|
|
if (rc)
|
|
goto job_error;
|
|
|
|
/* bring the link to diagnostic mode */
|
|
loopback_mode = (struct diag_mode_set *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
link_flags = loopback_mode->type;
|
|
timeout = loopback_mode->timeout * 100;
|
|
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq) {
|
|
rc = -ENOMEM;
|
|
goto loopback_mode_exit;
|
|
}
|
|
memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
|
|
pmboxq->u.mb.mbxOwner = OWN_HOST;
|
|
|
|
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
|
|
|
|
if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) {
|
|
/* wait for link down before proceeding */
|
|
i = 0;
|
|
while (phba->link_state != LPFC_LINK_DOWN) {
|
|
if (i++ > timeout) {
|
|
rc = -ETIMEDOUT;
|
|
goto loopback_mode_exit;
|
|
}
|
|
msleep(10);
|
|
}
|
|
|
|
memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
if (link_flags == INTERNAL_LOOP_BACK)
|
|
pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
|
|
else
|
|
pmboxq->u.mb.un.varInitLnk.link_flags =
|
|
FLAGS_TOPOLOGY_MODE_LOOP;
|
|
|
|
pmboxq->u.mb.mbxCommand = MBX_INIT_LINK;
|
|
pmboxq->u.mb.mbxOwner = OWN_HOST;
|
|
|
|
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
|
|
LPFC_MBOX_TMO);
|
|
|
|
if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus))
|
|
rc = -ENODEV;
|
|
else {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->link_flag |= LS_LOOPBACK_MODE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* wait for the link attention interrupt */
|
|
msleep(100);
|
|
|
|
i = 0;
|
|
while (phba->link_state != LPFC_HBA_READY) {
|
|
if (i++ > timeout) {
|
|
rc = -ETIMEDOUT;
|
|
break;
|
|
}
|
|
|
|
msleep(10);
|
|
}
|
|
}
|
|
|
|
} else
|
|
rc = -ENODEV;
|
|
|
|
loopback_mode_exit:
|
|
lpfc_bsg_diag_mode_exit(phba);
|
|
|
|
/*
|
|
* Let SLI layer release mboxq if mbox command completed after timeout.
|
|
*/
|
|
if (pmboxq && mbxstatus != MBX_TIMEOUT)
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
|
|
job_error:
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
/* complete the job back to userspace if no error */
|
|
if (rc == 0)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state
|
|
* @phba: Pointer to HBA context object.
|
|
* @diag: Flag for set link to diag or nomral operation state.
|
|
*
|
|
* This function is responsible for issuing a sli4 mailbox command for setting
|
|
* link to either diag state or normal operation state.
|
|
*/
|
|
static int
|
|
lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag)
|
|
{
|
|
LPFC_MBOXQ_t *pmboxq;
|
|
struct lpfc_mbx_set_link_diag_state *link_diag_state;
|
|
uint32_t req_len, alloc_len;
|
|
int mbxstatus = MBX_SUCCESS, rc;
|
|
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq)
|
|
return -ENOMEM;
|
|
|
|
req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
|
|
req_len, LPFC_SLI4_MBX_EMBED);
|
|
if (alloc_len != req_len) {
|
|
rc = -ENOMEM;
|
|
goto link_diag_state_set_out;
|
|
}
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3128 Set link to diagnostic state:x%x (x%x/x%x)\n",
|
|
diag, phba->sli4_hba.lnk_info.lnk_tp,
|
|
phba->sli4_hba.lnk_info.lnk_no);
|
|
|
|
link_diag_state = &pmboxq->u.mqe.un.link_diag_state;
|
|
bf_set(lpfc_mbx_set_diag_state_diag_bit_valid, &link_diag_state->u.req,
|
|
LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE);
|
|
bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req,
|
|
phba->sli4_hba.lnk_info.lnk_no);
|
|
bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req,
|
|
phba->sli4_hba.lnk_info.lnk_tp);
|
|
if (diag)
|
|
bf_set(lpfc_mbx_set_diag_state_diag,
|
|
&link_diag_state->u.req, 1);
|
|
else
|
|
bf_set(lpfc_mbx_set_diag_state_diag,
|
|
&link_diag_state->u.req, 0);
|
|
|
|
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
|
|
|
|
if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0))
|
|
rc = 0;
|
|
else
|
|
rc = -ENODEV;
|
|
|
|
link_diag_state_set_out:
|
|
if (pmboxq && (mbxstatus != MBX_TIMEOUT))
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_bsg_set_loopback_mode - set sli4 internal loopback diagnostic
|
|
* @phba: Pointer to HBA context object.
|
|
* @mode: loopback mode to set
|
|
* @link_no: link number for loopback mode to set
|
|
*
|
|
* This function is responsible for issuing a sli4 mailbox command for setting
|
|
* up loopback diagnostic for a link.
|
|
*/
|
|
static int
|
|
lpfc_sli4_bsg_set_loopback_mode(struct lpfc_hba *phba, int mode,
|
|
uint32_t link_no)
|
|
{
|
|
LPFC_MBOXQ_t *pmboxq;
|
|
uint32_t req_len, alloc_len;
|
|
struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback;
|
|
int mbxstatus = MBX_SUCCESS, rc = 0;
|
|
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq)
|
|
return -ENOMEM;
|
|
req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK,
|
|
req_len, LPFC_SLI4_MBX_EMBED);
|
|
if (alloc_len != req_len) {
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
return -ENOMEM;
|
|
}
|
|
link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback;
|
|
bf_set(lpfc_mbx_set_diag_state_link_num,
|
|
&link_diag_loopback->u.req, link_no);
|
|
|
|
if (phba->sli4_hba.conf_trunk & (1 << link_no)) {
|
|
bf_set(lpfc_mbx_set_diag_state_link_type,
|
|
&link_diag_loopback->u.req, LPFC_LNK_FC_TRUNKED);
|
|
} else {
|
|
bf_set(lpfc_mbx_set_diag_state_link_type,
|
|
&link_diag_loopback->u.req,
|
|
phba->sli4_hba.lnk_info.lnk_tp);
|
|
}
|
|
|
|
bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req,
|
|
mode);
|
|
|
|
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
|
|
if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"3127 Failed setup loopback mode mailbox "
|
|
"command, rc:x%x, status:x%x\n", mbxstatus,
|
|
pmboxq->u.mb.mbxStatus);
|
|
rc = -ENODEV;
|
|
}
|
|
if (pmboxq && (mbxstatus != MBX_TIMEOUT))
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function set up SLI4 FC port registrations for diagnostic run, which
|
|
* includes all the rpis, vfi, and also vpi.
|
|
*/
|
|
static int
|
|
lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba)
|
|
{
|
|
int rc;
|
|
|
|
if (phba->pport->fc_flag & FC_VFI_REGISTERED) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"3136 Port still had vfi registered: "
|
|
"mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n",
|
|
phba->pport->fc_myDID, phba->fcf.fcfi,
|
|
phba->sli4_hba.vfi_ids[phba->pport->vfi],
|
|
phba->vpi_ids[phba->pport->vpi]);
|
|
return -EINVAL;
|
|
}
|
|
rc = lpfc_issue_reg_vfi(phba->pport);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: LPFC_BSG_VENDOR_DIAG_MODE
|
|
*
|
|
* This function is responsible for placing an sli4 port into diagnostic
|
|
* loopback mode in order to perform a diagnostic loopback test.
|
|
*/
|
|
static int
|
|
lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct bsg_job *job)
|
|
{
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct diag_mode_set *loopback_mode;
|
|
uint32_t link_flags, timeout, link_no;
|
|
int i, rc = 0;
|
|
|
|
/* no data to return just the return code */
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
|
|
if (job->request_len < sizeof(struct fc_bsg_request) +
|
|
sizeof(struct diag_mode_set)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"3011 Received DIAG MODE request size:%d "
|
|
"below the minimum size:%d\n",
|
|
job->request_len,
|
|
(int)(sizeof(struct fc_bsg_request) +
|
|
sizeof(struct diag_mode_set)));
|
|
rc = -EINVAL;
|
|
goto job_done;
|
|
}
|
|
|
|
loopback_mode = (struct diag_mode_set *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
link_flags = loopback_mode->type;
|
|
timeout = loopback_mode->timeout * 100;
|
|
|
|
if (loopback_mode->physical_link == -1)
|
|
link_no = phba->sli4_hba.lnk_info.lnk_no;
|
|
else
|
|
link_no = loopback_mode->physical_link;
|
|
|
|
if (link_flags == DISABLE_LOOP_BACK) {
|
|
rc = lpfc_sli4_bsg_set_loopback_mode(phba,
|
|
LPFC_DIAG_LOOPBACK_TYPE_DISABLE,
|
|
link_no);
|
|
if (!rc) {
|
|
/* Unset the need disable bit */
|
|
phba->sli4_hba.conf_trunk &= ~((1 << link_no) << 4);
|
|
}
|
|
goto job_done;
|
|
} else {
|
|
/* Check if we need to disable the loopback state */
|
|
if (phba->sli4_hba.conf_trunk & ((1 << link_no) << 4)) {
|
|
rc = -EPERM;
|
|
goto job_done;
|
|
}
|
|
}
|
|
|
|
rc = lpfc_bsg_diag_mode_enter(phba);
|
|
if (rc)
|
|
goto job_done;
|
|
|
|
/* indicate we are in loobpack diagnostic mode */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->link_flag |= LS_LOOPBACK_MODE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* reset port to start frome scratch */
|
|
rc = lpfc_selective_reset(phba);
|
|
if (rc)
|
|
goto job_done;
|
|
|
|
/* bring the link to diagnostic mode */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3129 Bring link to diagnostic state.\n");
|
|
|
|
rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
|
|
if (rc) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"3130 Failed to bring link to diagnostic "
|
|
"state, rc:x%x\n", rc);
|
|
goto loopback_mode_exit;
|
|
}
|
|
|
|
/* wait for link down before proceeding */
|
|
i = 0;
|
|
while (phba->link_state != LPFC_LINK_DOWN) {
|
|
if (i++ > timeout) {
|
|
rc = -ETIMEDOUT;
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3131 Timeout waiting for link to "
|
|
"diagnostic mode, timeout:%d ms\n",
|
|
timeout * 10);
|
|
goto loopback_mode_exit;
|
|
}
|
|
msleep(10);
|
|
}
|
|
|
|
/* set up loopback mode */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3132 Set up loopback mode:x%x\n", link_flags);
|
|
|
|
switch (link_flags) {
|
|
case INTERNAL_LOOP_BACK:
|
|
if (phba->sli4_hba.conf_trunk & (1 << link_no)) {
|
|
rc = lpfc_sli4_bsg_set_loopback_mode(phba,
|
|
LPFC_DIAG_LOOPBACK_TYPE_INTERNAL,
|
|
link_no);
|
|
} else {
|
|
/* Trunk is configured, but link is not in this trunk */
|
|
if (phba->sli4_hba.conf_trunk) {
|
|
rc = -ELNRNG;
|
|
goto loopback_mode_exit;
|
|
}
|
|
|
|
rc = lpfc_sli4_bsg_set_loopback_mode(phba,
|
|
LPFC_DIAG_LOOPBACK_TYPE_INTERNAL,
|
|
link_no);
|
|
}
|
|
|
|
if (!rc) {
|
|
/* Set the need disable bit */
|
|
phba->sli4_hba.conf_trunk |= (1 << link_no) << 4;
|
|
}
|
|
|
|
break;
|
|
case EXTERNAL_LOOP_BACK:
|
|
if (phba->sli4_hba.conf_trunk & (1 << link_no)) {
|
|
rc = lpfc_sli4_bsg_set_loopback_mode(phba,
|
|
LPFC_DIAG_LOOPBACK_TYPE_EXTERNAL_TRUNKED,
|
|
link_no);
|
|
} else {
|
|
/* Trunk is configured, but link is not in this trunk */
|
|
if (phba->sli4_hba.conf_trunk) {
|
|
rc = -ELNRNG;
|
|
goto loopback_mode_exit;
|
|
}
|
|
|
|
rc = lpfc_sli4_bsg_set_loopback_mode(phba,
|
|
LPFC_DIAG_LOOPBACK_TYPE_SERDES,
|
|
link_no);
|
|
}
|
|
|
|
if (!rc) {
|
|
/* Set the need disable bit */
|
|
phba->sli4_hba.conf_trunk |= (1 << link_no) << 4;
|
|
}
|
|
|
|
break;
|
|
default:
|
|
rc = -EINVAL;
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"3141 Loopback mode:x%x not supported\n",
|
|
link_flags);
|
|
goto loopback_mode_exit;
|
|
}
|
|
|
|
if (!rc) {
|
|
/* wait for the link attention interrupt */
|
|
msleep(100);
|
|
i = 0;
|
|
while (phba->link_state < LPFC_LINK_UP) {
|
|
if (i++ > timeout) {
|
|
rc = -ETIMEDOUT;
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3137 Timeout waiting for link up "
|
|
"in loopback mode, timeout:%d ms\n",
|
|
timeout * 10);
|
|
break;
|
|
}
|
|
msleep(10);
|
|
}
|
|
}
|
|
|
|
/* port resource registration setup for loopback diagnostic */
|
|
if (!rc) {
|
|
/* set up a none zero myDID for loopback test */
|
|
phba->pport->fc_myDID = 1;
|
|
rc = lpfc_sli4_diag_fcport_reg_setup(phba);
|
|
} else
|
|
goto loopback_mode_exit;
|
|
|
|
if (!rc) {
|
|
/* wait for the port ready */
|
|
msleep(100);
|
|
i = 0;
|
|
while (phba->link_state != LPFC_HBA_READY) {
|
|
if (i++ > timeout) {
|
|
rc = -ETIMEDOUT;
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3133 Timeout waiting for port "
|
|
"loopback mode ready, timeout:%d ms\n",
|
|
timeout * 10);
|
|
break;
|
|
}
|
|
msleep(10);
|
|
}
|
|
}
|
|
|
|
loopback_mode_exit:
|
|
/* clear loopback diagnostic mode */
|
|
if (rc) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->link_flag &= ~LS_LOOPBACK_MODE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
lpfc_bsg_diag_mode_exit(phba);
|
|
|
|
job_done:
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
/* complete the job back to userspace if no error */
|
|
if (rc == 0)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode
|
|
* @job: LPFC_BSG_VENDOR_DIAG_MODE
|
|
*
|
|
* This function is responsible for responding to check and dispatch bsg diag
|
|
* command from the user to proper driver action routines.
|
|
*/
|
|
static int
|
|
lpfc_bsg_diag_loopback_mode(struct bsg_job *job)
|
|
{
|
|
struct Scsi_Host *shost;
|
|
struct lpfc_vport *vport;
|
|
struct lpfc_hba *phba;
|
|
int rc;
|
|
|
|
shost = fc_bsg_to_shost(job);
|
|
if (!shost)
|
|
return -ENODEV;
|
|
vport = shost_priv(shost);
|
|
if (!vport)
|
|
return -ENODEV;
|
|
phba = vport->phba;
|
|
if (!phba)
|
|
return -ENODEV;
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job);
|
|
else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
|
|
LPFC_SLI_INTF_IF_TYPE_2)
|
|
rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job);
|
|
else
|
|
rc = -ENODEV;
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode
|
|
* @job: LPFC_BSG_VENDOR_DIAG_MODE_END
|
|
*
|
|
* This function is responsible for responding to check and dispatch bsg diag
|
|
* command from the user to proper driver action routines.
|
|
*/
|
|
static int
|
|
lpfc_sli4_bsg_diag_mode_end(struct bsg_job *job)
|
|
{
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct Scsi_Host *shost;
|
|
struct lpfc_vport *vport;
|
|
struct lpfc_hba *phba;
|
|
struct diag_mode_set *loopback_mode_end_cmd;
|
|
uint32_t timeout;
|
|
int rc, i;
|
|
|
|
shost = fc_bsg_to_shost(job);
|
|
if (!shost)
|
|
return -ENODEV;
|
|
vport = shost_priv(shost);
|
|
if (!vport)
|
|
return -ENODEV;
|
|
phba = vport->phba;
|
|
if (!phba)
|
|
return -ENODEV;
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
return -ENODEV;
|
|
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
|
|
LPFC_SLI_INTF_IF_TYPE_2)
|
|
return -ENODEV;
|
|
|
|
/* clear loopback diagnostic mode */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->link_flag &= ~LS_LOOPBACK_MODE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
loopback_mode_end_cmd = (struct diag_mode_set *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
timeout = loopback_mode_end_cmd->timeout * 100;
|
|
|
|
rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
|
|
if (rc) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"3139 Failed to bring link to diagnostic "
|
|
"state, rc:x%x\n", rc);
|
|
goto loopback_mode_end_exit;
|
|
}
|
|
|
|
/* wait for link down before proceeding */
|
|
i = 0;
|
|
while (phba->link_state != LPFC_LINK_DOWN) {
|
|
if (i++ > timeout) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3140 Timeout waiting for link to "
|
|
"diagnostic mode_end, timeout:%d ms\n",
|
|
timeout * 10);
|
|
/* there is nothing much we can do here */
|
|
break;
|
|
}
|
|
msleep(10);
|
|
}
|
|
|
|
/* reset port resource registrations */
|
|
rc = lpfc_selective_reset(phba);
|
|
phba->pport->fc_myDID = 0;
|
|
|
|
loopback_mode_end_exit:
|
|
/* make return code available to userspace */
|
|
bsg_reply->result = rc;
|
|
/* complete the job back to userspace if no error */
|
|
if (rc == 0)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test
|
|
* @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST
|
|
*
|
|
* This function is to perform SLI4 diag link test request from the user
|
|
* applicaiton.
|
|
*/
|
|
static int
|
|
lpfc_sli4_bsg_link_diag_test(struct bsg_job *job)
|
|
{
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct Scsi_Host *shost;
|
|
struct lpfc_vport *vport;
|
|
struct lpfc_hba *phba;
|
|
LPFC_MBOXQ_t *pmboxq;
|
|
struct sli4_link_diag *link_diag_test_cmd;
|
|
uint32_t req_len, alloc_len;
|
|
struct lpfc_mbx_run_link_diag_test *run_link_diag_test;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
struct diag_status *diag_status_reply;
|
|
int mbxstatus, rc = -ENODEV, rc1 = 0;
|
|
|
|
shost = fc_bsg_to_shost(job);
|
|
if (!shost)
|
|
goto job_error;
|
|
|
|
vport = shost_priv(shost);
|
|
if (!vport)
|
|
goto job_error;
|
|
|
|
phba = vport->phba;
|
|
if (!phba)
|
|
goto job_error;
|
|
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
goto job_error;
|
|
|
|
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
|
|
LPFC_SLI_INTF_IF_TYPE_2)
|
|
goto job_error;
|
|
|
|
if (job->request_len < sizeof(struct fc_bsg_request) +
|
|
sizeof(struct sli4_link_diag)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"3013 Received LINK DIAG TEST request "
|
|
" size:%d below the minimum size:%d\n",
|
|
job->request_len,
|
|
(int)(sizeof(struct fc_bsg_request) +
|
|
sizeof(struct sli4_link_diag)));
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
rc = lpfc_bsg_diag_mode_enter(phba);
|
|
if (rc)
|
|
goto job_error;
|
|
|
|
link_diag_test_cmd = (struct sli4_link_diag *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
|
|
|
|
if (rc)
|
|
goto job_error;
|
|
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq) {
|
|
rc = -ENOMEM;
|
|
goto link_diag_test_exit;
|
|
}
|
|
|
|
req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
|
|
req_len, LPFC_SLI4_MBX_EMBED);
|
|
if (alloc_len != req_len) {
|
|
rc = -ENOMEM;
|
|
goto link_diag_test_exit;
|
|
}
|
|
|
|
run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test;
|
|
bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req,
|
|
phba->sli4_hba.lnk_info.lnk_no);
|
|
bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req,
|
|
phba->sli4_hba.lnk_info.lnk_tp);
|
|
bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req,
|
|
link_diag_test_cmd->test_id);
|
|
bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req,
|
|
link_diag_test_cmd->loops);
|
|
bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req,
|
|
link_diag_test_cmd->test_version);
|
|
bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req,
|
|
link_diag_test_cmd->error_action);
|
|
|
|
mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
|
|
|
|
shdr = (union lpfc_sli4_cfg_shdr *)
|
|
&pmboxq->u.mqe.un.sli4_config.header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || mbxstatus) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"3010 Run link diag test mailbox failed with "
|
|
"mbx_status x%x status x%x, add_status x%x\n",
|
|
mbxstatus, shdr_status, shdr_add_status);
|
|
}
|
|
|
|
diag_status_reply = (struct diag_status *)
|
|
bsg_reply->reply_data.vendor_reply.vendor_rsp;
|
|
|
|
if (job->reply_len < sizeof(*bsg_reply) + sizeof(*diag_status_reply)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"3012 Received Run link diag test reply "
|
|
"below minimum size (%d): reply_len:%d\n",
|
|
(int)(sizeof(*bsg_reply) +
|
|
sizeof(*diag_status_reply)),
|
|
job->reply_len);
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
diag_status_reply->mbox_status = mbxstatus;
|
|
diag_status_reply->shdr_status = shdr_status;
|
|
diag_status_reply->shdr_add_status = shdr_add_status;
|
|
|
|
link_diag_test_exit:
|
|
rc1 = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
|
|
|
|
if (pmboxq)
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
|
|
lpfc_bsg_diag_mode_exit(phba);
|
|
|
|
job_error:
|
|
/* make error code available to userspace */
|
|
if (rc1 && !rc)
|
|
rc = rc1;
|
|
bsg_reply->result = rc;
|
|
/* complete the job back to userspace if no error */
|
|
if (rc == 0)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfcdiag_loop_self_reg - obtains a remote port login id
|
|
* @phba: Pointer to HBA context object
|
|
* @rpi: Pointer to a remote port login id
|
|
*
|
|
* This function obtains a remote port login id so the diag loopback test
|
|
* can send and receive its own unsolicited CT command.
|
|
**/
|
|
static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
struct lpfc_dmabuf *dmabuff;
|
|
int status;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID,
|
|
(uint8_t *)&phba->pport->fc_sparam,
|
|
mbox, *rpi);
|
|
else {
|
|
*rpi = lpfc_sli4_alloc_rpi(phba);
|
|
if (*rpi == LPFC_RPI_ALLOC_ERROR) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return -EBUSY;
|
|
}
|
|
status = lpfc_reg_rpi(phba, phba->pport->vpi,
|
|
phba->pport->fc_myDID,
|
|
(uint8_t *)&phba->pport->fc_sparam,
|
|
mbox, *rpi);
|
|
}
|
|
|
|
if (status) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_sli4_free_rpi(phba, *rpi);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dmabuff = (struct lpfc_dmabuf *)mbox->ctx_buf;
|
|
mbox->ctx_buf = NULL;
|
|
mbox->ctx_ndlp = NULL;
|
|
status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
|
|
|
|
if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
|
|
lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
|
|
kfree(dmabuff);
|
|
if (status != MBX_TIMEOUT)
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_sli4_free_rpi(phba, *rpi);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
*rpi = mbox->u.mb.un.varWords[0];
|
|
|
|
lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
|
|
kfree(dmabuff);
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfcdiag_loop_self_unreg - unregs from the rpi
|
|
* @phba: Pointer to HBA context object
|
|
* @rpi: Remote port login id
|
|
*
|
|
* This function unregisters the rpi obtained in lpfcdiag_loop_self_reg
|
|
**/
|
|
static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
int status;
|
|
|
|
/* Allocate mboxq structure */
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (mbox == NULL)
|
|
return -ENOMEM;
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
lpfc_unreg_login(phba, 0, rpi, mbox);
|
|
else
|
|
lpfc_unreg_login(phba, phba->pport->vpi,
|
|
phba->sli4_hba.rpi_ids[rpi], mbox);
|
|
|
|
status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
|
|
|
|
if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
|
|
if (status != MBX_TIMEOUT)
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return -EIO;
|
|
}
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
lpfc_sli4_free_rpi(phba, rpi);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfcdiag_loop_get_xri - obtains the transmit and receive ids
|
|
* @phba: Pointer to HBA context object
|
|
* @rpi: Remote port login id
|
|
* @txxri: Pointer to transmit exchange id
|
|
* @rxxri: Pointer to response exchabge id
|
|
*
|
|
* This function obtains the transmit and receive ids required to send
|
|
* an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp
|
|
* flags are used to the unsolicted response handler is able to process
|
|
* the ct command sent on the same port.
|
|
**/
|
|
static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi,
|
|
uint16_t *txxri, uint16_t * rxxri)
|
|
{
|
|
struct lpfc_bsg_event *evt;
|
|
struct lpfc_iocbq *cmdiocbq, *rspiocbq;
|
|
IOCB_t *cmd, *rsp;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
struct ulp_bde64 *bpl = NULL;
|
|
struct lpfc_sli_ct_request *ctreq = NULL;
|
|
int ret_val = 0;
|
|
int time_left;
|
|
int iocb_stat = IOCB_SUCCESS;
|
|
unsigned long flags;
|
|
|
|
*txxri = 0;
|
|
*rxxri = 0;
|
|
evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
|
|
SLI_CT_ELX_LOOPBACK);
|
|
if (!evt)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_add(&evt->node, &phba->ct_ev_waiters);
|
|
lpfc_bsg_event_ref(evt);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
|
rspiocbq = lpfc_sli_get_iocbq(phba);
|
|
|
|
dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (dmabuf) {
|
|
dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys);
|
|
if (dmabuf->virt) {
|
|
INIT_LIST_HEAD(&dmabuf->list);
|
|
bpl = (struct ulp_bde64 *) dmabuf->virt;
|
|
memset(bpl, 0, sizeof(*bpl));
|
|
ctreq = (struct lpfc_sli_ct_request *)(bpl + 1);
|
|
bpl->addrHigh =
|
|
le32_to_cpu(putPaddrHigh(dmabuf->phys +
|
|
sizeof(*bpl)));
|
|
bpl->addrLow =
|
|
le32_to_cpu(putPaddrLow(dmabuf->phys +
|
|
sizeof(*bpl)));
|
|
bpl->tus.f.bdeFlags = 0;
|
|
bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ;
|
|
bpl->tus.w = le32_to_cpu(bpl->tus.w);
|
|
}
|
|
}
|
|
|
|
if (cmdiocbq == NULL || rspiocbq == NULL ||
|
|
dmabuf == NULL || bpl == NULL || ctreq == NULL ||
|
|
dmabuf->virt == NULL) {
|
|
ret_val = -ENOMEM;
|
|
goto err_get_xri_exit;
|
|
}
|
|
|
|
cmd = &cmdiocbq->iocb;
|
|
rsp = &rspiocbq->iocb;
|
|
|
|
memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
|
|
|
|
ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
|
|
ctreq->RevisionId.bits.InId = 0;
|
|
ctreq->FsType = SLI_CT_ELX_LOOPBACK;
|
|
ctreq->FsSubType = 0;
|
|
ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP;
|
|
ctreq->CommandResponse.bits.Size = 0;
|
|
|
|
|
|
cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys);
|
|
cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys);
|
|
cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
|
|
cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl);
|
|
|
|
cmd->un.xseq64.w5.hcsw.Fctl = LA;
|
|
cmd->un.xseq64.w5.hcsw.Dfctl = 0;
|
|
cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
|
|
cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
|
|
|
|
cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR;
|
|
cmd->ulpBdeCount = 1;
|
|
cmd->ulpLe = 1;
|
|
cmd->ulpClass = CLASS3;
|
|
cmd->ulpContext = rpi;
|
|
|
|
cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
|
|
cmdiocbq->vport = phba->pport;
|
|
cmdiocbq->iocb_cmpl = NULL;
|
|
|
|
iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
|
|
rspiocbq,
|
|
(phba->fc_ratov * 2)
|
|
+ LPFC_DRVR_TIMEOUT);
|
|
if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOSTAT_SUCCESS)) {
|
|
ret_val = -EIO;
|
|
goto err_get_xri_exit;
|
|
}
|
|
*txxri = rsp->ulpContext;
|
|
|
|
evt->waiting = 1;
|
|
evt->wait_time_stamp = jiffies;
|
|
time_left = wait_event_interruptible_timeout(
|
|
evt->wq, !list_empty(&evt->events_to_see),
|
|
msecs_to_jiffies(1000 *
|
|
((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
|
|
if (list_empty(&evt->events_to_see))
|
|
ret_val = (time_left) ? -EINTR : -ETIMEDOUT;
|
|
else {
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_move(evt->events_to_see.prev, &evt->events_to_get);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
*rxxri = (list_entry(evt->events_to_get.prev,
|
|
typeof(struct event_data),
|
|
node))->immed_dat;
|
|
}
|
|
evt->waiting = 0;
|
|
|
|
err_get_xri_exit:
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
lpfc_bsg_event_unref(evt); /* release ref */
|
|
lpfc_bsg_event_unref(evt); /* delete */
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
if (dmabuf) {
|
|
if (dmabuf->virt)
|
|
lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
|
|
kfree(dmabuf);
|
|
}
|
|
|
|
if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT))
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
if (rspiocbq)
|
|
lpfc_sli_release_iocbq(phba, rspiocbq);
|
|
return ret_val;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers
|
|
* @phba: Pointer to HBA context object
|
|
*
|
|
* This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and
|
|
* returns the pointer to the buffer.
|
|
**/
|
|
static struct lpfc_dmabuf *
|
|
lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_dmabuf *dmabuf;
|
|
struct pci_dev *pcidev = phba->pcidev;
|
|
|
|
/* allocate dma buffer struct */
|
|
dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (!dmabuf)
|
|
return NULL;
|
|
|
|
INIT_LIST_HEAD(&dmabuf->list);
|
|
|
|
/* now, allocate dma buffer */
|
|
dmabuf->virt = dma_alloc_coherent(&pcidev->dev, BSG_MBOX_SIZE,
|
|
&(dmabuf->phys), GFP_KERNEL);
|
|
|
|
if (!dmabuf->virt) {
|
|
kfree(dmabuf);
|
|
return NULL;
|
|
}
|
|
|
|
return dmabuf;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer
|
|
* @phba: Pointer to HBA context object.
|
|
* @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor.
|
|
*
|
|
* This routine just simply frees a dma buffer and its associated buffer
|
|
* descriptor referred by @dmabuf.
|
|
**/
|
|
static void
|
|
lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf)
|
|
{
|
|
struct pci_dev *pcidev = phba->pcidev;
|
|
|
|
if (!dmabuf)
|
|
return;
|
|
|
|
if (dmabuf->virt)
|
|
dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE,
|
|
dmabuf->virt, dmabuf->phys);
|
|
kfree(dmabuf);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers
|
|
* @phba: Pointer to HBA context object.
|
|
* @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs.
|
|
*
|
|
* This routine just simply frees all dma buffers and their associated buffer
|
|
* descriptors referred by @dmabuf_list.
|
|
**/
|
|
static void
|
|
lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba,
|
|
struct list_head *dmabuf_list)
|
|
{
|
|
struct lpfc_dmabuf *dmabuf, *next_dmabuf;
|
|
|
|
if (list_empty(dmabuf_list))
|
|
return;
|
|
|
|
list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) {
|
|
list_del_init(&dmabuf->list);
|
|
lpfc_bsg_dma_page_free(phba, dmabuf);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* diag_cmd_data_alloc - fills in a bde struct with dma buffers
|
|
* @phba: Pointer to HBA context object
|
|
* @bpl: Pointer to 64 bit bde structure
|
|
* @size: Number of bytes to process
|
|
* @nocopydata: Flag to copy user data into the allocated buffer
|
|
*
|
|
* This function allocates page size buffers and populates an lpfc_dmabufext.
|
|
* If allowed the user data pointed to with indataptr is copied into the kernel
|
|
* memory. The chained list of page size buffers is returned.
|
|
**/
|
|
static struct lpfc_dmabufext *
|
|
diag_cmd_data_alloc(struct lpfc_hba *phba,
|
|
struct ulp_bde64 *bpl, uint32_t size,
|
|
int nocopydata)
|
|
{
|
|
struct lpfc_dmabufext *mlist = NULL;
|
|
struct lpfc_dmabufext *dmp;
|
|
int cnt, offset = 0, i = 0;
|
|
struct pci_dev *pcidev;
|
|
|
|
pcidev = phba->pcidev;
|
|
|
|
while (size) {
|
|
/* We get chunks of 4K */
|
|
if (size > BUF_SZ_4K)
|
|
cnt = BUF_SZ_4K;
|
|
else
|
|
cnt = size;
|
|
|
|
/* allocate struct lpfc_dmabufext buffer header */
|
|
dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL);
|
|
if (!dmp)
|
|
goto out;
|
|
|
|
INIT_LIST_HEAD(&dmp->dma.list);
|
|
|
|
/* Queue it to a linked list */
|
|
if (mlist)
|
|
list_add_tail(&dmp->dma.list, &mlist->dma.list);
|
|
else
|
|
mlist = dmp;
|
|
|
|
/* allocate buffer */
|
|
dmp->dma.virt = dma_alloc_coherent(&pcidev->dev,
|
|
cnt,
|
|
&(dmp->dma.phys),
|
|
GFP_KERNEL);
|
|
|
|
if (!dmp->dma.virt)
|
|
goto out;
|
|
|
|
dmp->size = cnt;
|
|
|
|
if (nocopydata) {
|
|
bpl->tus.f.bdeFlags = 0;
|
|
} else {
|
|
memset((uint8_t *)dmp->dma.virt, 0, cnt);
|
|
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
|
|
}
|
|
|
|
/* build buffer ptr list for IOCB */
|
|
bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys));
|
|
bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys));
|
|
bpl->tus.f.bdeSize = (ushort) cnt;
|
|
bpl->tus.w = le32_to_cpu(bpl->tus.w);
|
|
bpl++;
|
|
|
|
i++;
|
|
offset += cnt;
|
|
size -= cnt;
|
|
}
|
|
|
|
if (mlist) {
|
|
mlist->flag = i;
|
|
return mlist;
|
|
}
|
|
out:
|
|
diag_cmd_data_free(phba, mlist);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd
|
|
* @phba: Pointer to HBA context object
|
|
* @rxxri: Receive exchange id
|
|
* @len: Number of data bytes
|
|
*
|
|
* This function allocates and posts a data buffer of sufficient size to receive
|
|
* an unsolicted CT command.
|
|
**/
|
|
static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri,
|
|
size_t len)
|
|
{
|
|
struct lpfc_sli_ring *pring;
|
|
struct lpfc_iocbq *cmdiocbq;
|
|
IOCB_t *cmd = NULL;
|
|
struct list_head head, *curr, *next;
|
|
struct lpfc_dmabuf *rxbmp;
|
|
struct lpfc_dmabuf *dmp;
|
|
struct lpfc_dmabuf *mp[2] = {NULL, NULL};
|
|
struct ulp_bde64 *rxbpl = NULL;
|
|
uint32_t num_bde;
|
|
struct lpfc_dmabufext *rxbuffer = NULL;
|
|
int ret_val = 0;
|
|
int iocb_stat;
|
|
int i = 0;
|
|
|
|
pring = lpfc_phba_elsring(phba);
|
|
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
|
rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (rxbmp != NULL) {
|
|
rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys);
|
|
if (rxbmp->virt) {
|
|
INIT_LIST_HEAD(&rxbmp->list);
|
|
rxbpl = (struct ulp_bde64 *) rxbmp->virt;
|
|
rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0);
|
|
}
|
|
}
|
|
|
|
if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer || !pring) {
|
|
ret_val = -ENOMEM;
|
|
goto err_post_rxbufs_exit;
|
|
}
|
|
|
|
/* Queue buffers for the receive exchange */
|
|
num_bde = (uint32_t)rxbuffer->flag;
|
|
dmp = &rxbuffer->dma;
|
|
|
|
cmd = &cmdiocbq->iocb;
|
|
i = 0;
|
|
|
|
INIT_LIST_HEAD(&head);
|
|
list_add_tail(&head, &dmp->list);
|
|
list_for_each_safe(curr, next, &head) {
|
|
mp[i] = list_entry(curr, struct lpfc_dmabuf, list);
|
|
list_del(curr);
|
|
|
|
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
|
|
mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba);
|
|
cmd->un.quexri64cx.buff.bde.addrHigh =
|
|
putPaddrHigh(mp[i]->phys);
|
|
cmd->un.quexri64cx.buff.bde.addrLow =
|
|
putPaddrLow(mp[i]->phys);
|
|
cmd->un.quexri64cx.buff.bde.tus.f.bdeSize =
|
|
((struct lpfc_dmabufext *)mp[i])->size;
|
|
cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag;
|
|
cmd->ulpCommand = CMD_QUE_XRI64_CX;
|
|
cmd->ulpPU = 0;
|
|
cmd->ulpLe = 1;
|
|
cmd->ulpBdeCount = 1;
|
|
cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0;
|
|
|
|
} else {
|
|
cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys);
|
|
cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys);
|
|
cmd->un.cont64[i].tus.f.bdeSize =
|
|
((struct lpfc_dmabufext *)mp[i])->size;
|
|
cmd->ulpBdeCount = ++i;
|
|
|
|
if ((--num_bde > 0) && (i < 2))
|
|
continue;
|
|
|
|
cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX;
|
|
cmd->ulpLe = 1;
|
|
}
|
|
|
|
cmd->ulpClass = CLASS3;
|
|
cmd->ulpContext = rxxri;
|
|
|
|
iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
|
|
0);
|
|
if (iocb_stat == IOCB_ERROR) {
|
|
diag_cmd_data_free(phba,
|
|
(struct lpfc_dmabufext *)mp[0]);
|
|
if (mp[1])
|
|
diag_cmd_data_free(phba,
|
|
(struct lpfc_dmabufext *)mp[1]);
|
|
dmp = list_entry(next, struct lpfc_dmabuf, list);
|
|
ret_val = -EIO;
|
|
goto err_post_rxbufs_exit;
|
|
}
|
|
|
|
lpfc_sli_ringpostbuf_put(phba, pring, mp[0]);
|
|
if (mp[1]) {
|
|
lpfc_sli_ringpostbuf_put(phba, pring, mp[1]);
|
|
mp[1] = NULL;
|
|
}
|
|
|
|
/* The iocb was freed by lpfc_sli_issue_iocb */
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
|
if (!cmdiocbq) {
|
|
dmp = list_entry(next, struct lpfc_dmabuf, list);
|
|
ret_val = -EIO;
|
|
goto err_post_rxbufs_exit;
|
|
}
|
|
|
|
cmd = &cmdiocbq->iocb;
|
|
i = 0;
|
|
}
|
|
list_del(&head);
|
|
|
|
err_post_rxbufs_exit:
|
|
|
|
if (rxbmp) {
|
|
if (rxbmp->virt)
|
|
lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys);
|
|
kfree(rxbmp);
|
|
}
|
|
|
|
if (cmdiocbq)
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
return ret_val;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_diag_loopback_run - run loopback on a port by issue ct cmd to itself
|
|
* @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job
|
|
*
|
|
* This function receives a user data buffer to be transmitted and received on
|
|
* the same port, the link must be up and in loopback mode prior
|
|
* to being called.
|
|
* 1. A kernel buffer is allocated to copy the user data into.
|
|
* 2. The port registers with "itself".
|
|
* 3. The transmit and receive exchange ids are obtained.
|
|
* 4. The receive exchange id is posted.
|
|
* 5. A new els loopback event is created.
|
|
* 6. The command and response iocbs are allocated.
|
|
* 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback.
|
|
*
|
|
* This function is meant to be called n times while the port is in loopback
|
|
* so it is the apps responsibility to issue a reset to take the port out
|
|
* of loopback mode.
|
|
**/
|
|
static int
|
|
lpfc_bsg_diag_loopback_run(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_bsg_event *evt;
|
|
struct event_data *evdat;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
uint32_t size;
|
|
uint32_t full_size;
|
|
size_t segment_len = 0, segment_offset = 0, current_offset = 0;
|
|
uint16_t rpi = 0;
|
|
struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL;
|
|
IOCB_t *cmd, *rsp = NULL;
|
|
struct lpfc_sli_ct_request *ctreq;
|
|
struct lpfc_dmabuf *txbmp;
|
|
struct ulp_bde64 *txbpl = NULL;
|
|
struct lpfc_dmabufext *txbuffer = NULL;
|
|
struct list_head head;
|
|
struct lpfc_dmabuf *curr;
|
|
uint16_t txxri = 0, rxxri;
|
|
uint32_t num_bde;
|
|
uint8_t *ptr = NULL, *rx_databuf = NULL;
|
|
int rc = 0;
|
|
int time_left;
|
|
int iocb_stat = IOCB_SUCCESS;
|
|
unsigned long flags;
|
|
void *dataout = NULL;
|
|
uint32_t total_mem;
|
|
|
|
/* in case no data is returned return just the return code */
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2739 Received DIAG TEST request below minimum "
|
|
"size\n");
|
|
rc = -EINVAL;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
if (job->request_payload.payload_len !=
|
|
job->reply_payload.payload_len) {
|
|
rc = -EINVAL;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
if ((phba->link_state == LPFC_HBA_ERROR) ||
|
|
(psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
|
|
(!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
|
|
rc = -EACCES;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) {
|
|
rc = -EACCES;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
size = job->request_payload.payload_len;
|
|
full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */
|
|
|
|
if ((size == 0) || (size > 80 * BUF_SZ_4K)) {
|
|
rc = -ERANGE;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
if (full_size >= BUF_SZ_4K) {
|
|
/*
|
|
* Allocate memory for ioctl data. If buffer is bigger than 64k,
|
|
* then we allocate 64k and re-use that buffer over and over to
|
|
* xfer the whole block. This is because Linux kernel has a
|
|
* problem allocating more than 120k of kernel space memory. Saw
|
|
* problem with GET_FCPTARGETMAPPING...
|
|
*/
|
|
if (size <= (64 * 1024))
|
|
total_mem = full_size;
|
|
else
|
|
total_mem = 64 * 1024;
|
|
} else
|
|
/* Allocate memory for ioctl data */
|
|
total_mem = BUF_SZ_4K;
|
|
|
|
dataout = kmalloc(total_mem, GFP_KERNEL);
|
|
if (dataout == NULL) {
|
|
rc = -ENOMEM;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
ptr = dataout;
|
|
ptr += ELX_LOOPBACK_HEADER_SZ;
|
|
sg_copy_to_buffer(job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt,
|
|
ptr, size);
|
|
rc = lpfcdiag_loop_self_reg(phba, &rpi);
|
|
if (rc)
|
|
goto loopback_test_exit;
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri);
|
|
if (rc) {
|
|
lpfcdiag_loop_self_unreg(phba, rpi);
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size);
|
|
if (rc) {
|
|
lpfcdiag_loop_self_unreg(phba, rpi);
|
|
goto loopback_test_exit;
|
|
}
|
|
}
|
|
evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
|
|
SLI_CT_ELX_LOOPBACK);
|
|
if (!evt) {
|
|
lpfcdiag_loop_self_unreg(phba, rpi);
|
|
rc = -ENOMEM;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_add(&evt->node, &phba->ct_ev_waiters);
|
|
lpfc_bsg_event_ref(evt);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
rspiocbq = lpfc_sli_get_iocbq(phba);
|
|
txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
|
|
if (txbmp) {
|
|
txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys);
|
|
if (txbmp->virt) {
|
|
INIT_LIST_HEAD(&txbmp->list);
|
|
txbpl = (struct ulp_bde64 *) txbmp->virt;
|
|
txbuffer = diag_cmd_data_alloc(phba,
|
|
txbpl, full_size, 0);
|
|
}
|
|
}
|
|
|
|
if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) {
|
|
rc = -ENOMEM;
|
|
goto err_loopback_test_exit;
|
|
}
|
|
if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) {
|
|
rc = -ENOMEM;
|
|
goto err_loopback_test_exit;
|
|
}
|
|
|
|
cmd = &cmdiocbq->iocb;
|
|
if (phba->sli_rev < LPFC_SLI_REV4)
|
|
rsp = &rspiocbq->iocb;
|
|
|
|
INIT_LIST_HEAD(&head);
|
|
list_add_tail(&head, &txbuffer->dma.list);
|
|
list_for_each_entry(curr, &head, list) {
|
|
segment_len = ((struct lpfc_dmabufext *)curr)->size;
|
|
if (current_offset == 0) {
|
|
ctreq = curr->virt;
|
|
memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
|
|
ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
|
|
ctreq->RevisionId.bits.InId = 0;
|
|
ctreq->FsType = SLI_CT_ELX_LOOPBACK;
|
|
ctreq->FsSubType = 0;
|
|
ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA;
|
|
ctreq->CommandResponse.bits.Size = size;
|
|
segment_offset = ELX_LOOPBACK_HEADER_SZ;
|
|
} else
|
|
segment_offset = 0;
|
|
|
|
BUG_ON(segment_offset >= segment_len);
|
|
memcpy(curr->virt + segment_offset,
|
|
ptr + current_offset,
|
|
segment_len - segment_offset);
|
|
|
|
current_offset += segment_len - segment_offset;
|
|
BUG_ON(current_offset > size);
|
|
}
|
|
list_del(&head);
|
|
|
|
/* Build the XMIT_SEQUENCE iocb */
|
|
num_bde = (uint32_t)txbuffer->flag;
|
|
|
|
cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys);
|
|
cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys);
|
|
cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
|
|
cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64));
|
|
|
|
cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
|
|
cmd->un.xseq64.w5.hcsw.Dfctl = 0;
|
|
cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
|
|
cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
|
|
|
|
cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
|
|
cmd->ulpBdeCount = 1;
|
|
cmd->ulpLe = 1;
|
|
cmd->ulpClass = CLASS3;
|
|
|
|
if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
cmd->ulpContext = txxri;
|
|
} else {
|
|
cmd->un.xseq64.bdl.ulpIoTag32 = 0;
|
|
cmd->un.ulpWord[3] = phba->sli4_hba.rpi_ids[rpi];
|
|
cmdiocbq->context3 = txbmp;
|
|
cmdiocbq->sli4_xritag = NO_XRI;
|
|
cmd->unsli3.rcvsli3.ox_id = 0xffff;
|
|
}
|
|
cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
|
|
cmdiocbq->iocb_flag |= LPFC_IO_LOOPBACK;
|
|
cmdiocbq->vport = phba->pport;
|
|
cmdiocbq->iocb_cmpl = NULL;
|
|
iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
|
|
rspiocbq, (phba->fc_ratov * 2) +
|
|
LPFC_DRVR_TIMEOUT);
|
|
|
|
if ((iocb_stat != IOCB_SUCCESS) ||
|
|
((phba->sli_rev < LPFC_SLI_REV4) &&
|
|
(rsp->ulpStatus != IOSTAT_SUCCESS))) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"3126 Failed loopback test issue iocb: "
|
|
"iocb_stat:x%x\n", iocb_stat);
|
|
rc = -EIO;
|
|
goto err_loopback_test_exit;
|
|
}
|
|
|
|
evt->waiting = 1;
|
|
time_left = wait_event_interruptible_timeout(
|
|
evt->wq, !list_empty(&evt->events_to_see),
|
|
msecs_to_jiffies(1000 *
|
|
((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
|
|
evt->waiting = 0;
|
|
if (list_empty(&evt->events_to_see)) {
|
|
rc = (time_left) ? -EINTR : -ETIMEDOUT;
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"3125 Not receiving unsolicited event, "
|
|
"rc:x%x\n", rc);
|
|
} else {
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_move(evt->events_to_see.prev, &evt->events_to_get);
|
|
evdat = list_entry(evt->events_to_get.prev,
|
|
typeof(*evdat), node);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
rx_databuf = evdat->data;
|
|
if (evdat->len != full_size) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"1603 Loopback test did not receive expected "
|
|
"data length. actual length 0x%x expected "
|
|
"length 0x%x\n",
|
|
evdat->len, full_size);
|
|
rc = -EIO;
|
|
} else if (rx_databuf == NULL)
|
|
rc = -EIO;
|
|
else {
|
|
rc = IOCB_SUCCESS;
|
|
/* skip over elx loopback header */
|
|
rx_databuf += ELX_LOOPBACK_HEADER_SZ;
|
|
bsg_reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
rx_databuf, size);
|
|
bsg_reply->reply_payload_rcv_len = size;
|
|
}
|
|
}
|
|
|
|
err_loopback_test_exit:
|
|
lpfcdiag_loop_self_unreg(phba, rpi);
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
lpfc_bsg_event_unref(evt); /* release ref */
|
|
lpfc_bsg_event_unref(evt); /* delete */
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
if ((cmdiocbq != NULL) && (iocb_stat != IOCB_TIMEDOUT))
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
|
|
if (rspiocbq != NULL)
|
|
lpfc_sli_release_iocbq(phba, rspiocbq);
|
|
|
|
if (txbmp != NULL) {
|
|
if (txbpl != NULL) {
|
|
if (txbuffer != NULL)
|
|
diag_cmd_data_free(phba, txbuffer);
|
|
lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys);
|
|
}
|
|
kfree(txbmp);
|
|
}
|
|
|
|
loopback_test_exit:
|
|
kfree(dataout);
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
job->dd_data = NULL;
|
|
/* complete the job back to userspace if no error */
|
|
if (rc == IOCB_SUCCESS)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command
|
|
* @job: GET_DFC_REV fc_bsg_job
|
|
**/
|
|
static int
|
|
lpfc_bsg_get_dfc_rev(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct get_mgmt_rev_reply *event_reply;
|
|
int rc = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2740 Received GET_DFC_REV request below "
|
|
"minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
event_reply = (struct get_mgmt_rev_reply *)
|
|
bsg_reply->reply_data.vendor_reply.vendor_rsp;
|
|
|
|
if (job->reply_len < sizeof(*bsg_reply) + sizeof(*event_reply)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2741 Received GET_DFC_REV reply below "
|
|
"minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
event_reply->info.a_Major = MANAGEMENT_MAJOR_REV;
|
|
event_reply->info.a_Minor = MANAGEMENT_MINOR_REV;
|
|
job_error:
|
|
bsg_reply->result = rc;
|
|
if (rc == 0)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmboxq: Pointer to mailbox command.
|
|
*
|
|
* This is completion handler function for mailbox commands issued from
|
|
* lpfc_bsg_issue_mbox function. This function is called by the
|
|
* mailbox event handler function with no lock held. This function
|
|
* will wake up thread waiting on the wait queue pointed by context1
|
|
* of the mailbox.
|
|
**/
|
|
static void
|
|
lpfc_bsg_issue_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
|
|
{
|
|
struct bsg_job_data *dd_data;
|
|
struct fc_bsg_reply *bsg_reply;
|
|
struct bsg_job *job;
|
|
uint32_t size;
|
|
unsigned long flags;
|
|
uint8_t *pmb, *pmb_buf;
|
|
|
|
dd_data = pmboxq->ctx_ndlp;
|
|
|
|
/*
|
|
* The outgoing buffer is readily referred from the dma buffer,
|
|
* just need to get header part from mailboxq structure.
|
|
*/
|
|
pmb = (uint8_t *)&pmboxq->u.mb;
|
|
pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
|
|
memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
|
|
|
|
/* Determine if job has been aborted */
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
job = dd_data->set_job;
|
|
if (job) {
|
|
/* Prevent timeout handling from trying to abort job */
|
|
job->dd_data = NULL;
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
/* Copy the mailbox data to the job if it is still active */
|
|
|
|
if (job) {
|
|
bsg_reply = job->reply;
|
|
size = job->reply_payload.payload_len;
|
|
bsg_reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
pmb_buf, size);
|
|
}
|
|
|
|
dd_data->set_job = NULL;
|
|
mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool);
|
|
lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers);
|
|
kfree(dd_data);
|
|
|
|
/* Complete the job if the job is still active */
|
|
|
|
if (job) {
|
|
bsg_reply->result = 0;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_check_cmd_access - test for a supported mailbox command
|
|
* @phba: Pointer to HBA context object.
|
|
* @mb: Pointer to a mailbox object.
|
|
* @vport: Pointer to a vport object.
|
|
*
|
|
* Some commands require the port to be offline, some may not be called from
|
|
* the application.
|
|
**/
|
|
static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba,
|
|
MAILBOX_t *mb, struct lpfc_vport *vport)
|
|
{
|
|
/* return negative error values for bsg job */
|
|
switch (mb->mbxCommand) {
|
|
/* Offline only */
|
|
case MBX_INIT_LINK:
|
|
case MBX_DOWN_LINK:
|
|
case MBX_CONFIG_LINK:
|
|
case MBX_CONFIG_RING:
|
|
case MBX_RESET_RING:
|
|
case MBX_UNREG_LOGIN:
|
|
case MBX_CLEAR_LA:
|
|
case MBX_DUMP_CONTEXT:
|
|
case MBX_RUN_DIAGS:
|
|
case MBX_RESTART:
|
|
case MBX_SET_MASK:
|
|
if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2743 Command 0x%x is illegal in on-line "
|
|
"state\n",
|
|
mb->mbxCommand);
|
|
return -EPERM;
|
|
}
|
|
break;
|
|
case MBX_WRITE_NV:
|
|
case MBX_WRITE_VPARMS:
|
|
case MBX_LOAD_SM:
|
|
case MBX_READ_NV:
|
|
case MBX_READ_CONFIG:
|
|
case MBX_READ_RCONFIG:
|
|
case MBX_READ_STATUS:
|
|
case MBX_READ_XRI:
|
|
case MBX_READ_REV:
|
|
case MBX_READ_LNK_STAT:
|
|
case MBX_DUMP_MEMORY:
|
|
case MBX_DOWN_LOAD:
|
|
case MBX_UPDATE_CFG:
|
|
case MBX_KILL_BOARD:
|
|
case MBX_READ_TOPOLOGY:
|
|
case MBX_LOAD_AREA:
|
|
case MBX_LOAD_EXP_ROM:
|
|
case MBX_BEACON:
|
|
case MBX_DEL_LD_ENTRY:
|
|
case MBX_SET_DEBUG:
|
|
case MBX_WRITE_WWN:
|
|
case MBX_SLI4_CONFIG:
|
|
case MBX_READ_EVENT_LOG:
|
|
case MBX_READ_EVENT_LOG_STATUS:
|
|
case MBX_WRITE_EVENT_LOG:
|
|
case MBX_PORT_CAPABILITIES:
|
|
case MBX_PORT_IOV_CONTROL:
|
|
case MBX_RUN_BIU_DIAG64:
|
|
break;
|
|
case MBX_SET_VARIABLE:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"1226 mbox: set_variable 0x%x, 0x%x\n",
|
|
mb->un.varWords[0],
|
|
mb->un.varWords[1]);
|
|
if ((mb->un.varWords[0] == SETVAR_MLOMNT)
|
|
&& (mb->un.varWords[1] == 1)) {
|
|
phba->wait_4_mlo_maint_flg = 1;
|
|
} else if (mb->un.varWords[0] == SETVAR_MLORST) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->link_flag &= ~LS_LOOPBACK_MODE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
phba->fc_topology = LPFC_TOPOLOGY_PT_PT;
|
|
}
|
|
break;
|
|
case MBX_READ_SPARM64:
|
|
case MBX_REG_LOGIN:
|
|
case MBX_REG_LOGIN64:
|
|
case MBX_CONFIG_PORT:
|
|
case MBX_RUN_BIU_DIAG:
|
|
default:
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2742 Unknown Command 0x%x\n",
|
|
mb->mbxCommand);
|
|
return -EPERM;
|
|
}
|
|
|
|
return 0; /* ok */
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_mbox_ext_session_reset - clean up context of multi-buffer mbox session
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This is routine clean up and reset BSG handling of multi-buffer mbox
|
|
* command session.
|
|
**/
|
|
static void
|
|
lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba)
|
|
{
|
|
if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE)
|
|
return;
|
|
|
|
/* free all memory, including dma buffers */
|
|
lpfc_bsg_dma_page_list_free(phba,
|
|
&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
|
|
lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf);
|
|
/* multi-buffer write mailbox command pass-through complete */
|
|
memset((char *)&phba->mbox_ext_buf_ctx, 0,
|
|
sizeof(struct lpfc_mbox_ext_buf_ctx));
|
|
INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmboxq: Pointer to mailbox command.
|
|
*
|
|
* This is routine handles BSG job for mailbox commands completions with
|
|
* multiple external buffers.
|
|
**/
|
|
static struct bsg_job *
|
|
lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
|
|
{
|
|
struct bsg_job_data *dd_data;
|
|
struct bsg_job *job;
|
|
struct fc_bsg_reply *bsg_reply;
|
|
uint8_t *pmb, *pmb_buf;
|
|
unsigned long flags;
|
|
uint32_t size;
|
|
int rc = 0;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
struct lpfc_sli_config_mbox *sli_cfg_mbx;
|
|
uint8_t *pmbx;
|
|
|
|
dd_data = pmboxq->ctx_buf;
|
|
|
|
/* Determine if job has been aborted */
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
job = dd_data->set_job;
|
|
if (job) {
|
|
bsg_reply = job->reply;
|
|
/* Prevent timeout handling from trying to abort job */
|
|
job->dd_data = NULL;
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
/*
|
|
* The outgoing buffer is readily referred from the dma buffer,
|
|
* just need to get header part from mailboxq structure.
|
|
*/
|
|
|
|
pmb = (uint8_t *)&pmboxq->u.mb;
|
|
pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
|
|
/* Copy the byte swapped response mailbox back to the user */
|
|
memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
|
|
/* if there is any non-embedded extended data copy that too */
|
|
dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf;
|
|
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
|
|
if (!bsg_bf_get(lpfc_mbox_hdr_emb,
|
|
&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
|
|
pmbx = (uint8_t *)dmabuf->virt;
|
|
/* byte swap the extended data following the mailbox command */
|
|
lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
|
|
&pmbx[sizeof(MAILBOX_t)],
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len);
|
|
}
|
|
|
|
/* Complete the job if the job is still active */
|
|
|
|
if (job) {
|
|
size = job->reply_payload.payload_len;
|
|
bsg_reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
pmb_buf, size);
|
|
|
|
/* result for successful */
|
|
bsg_reply->result = 0;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2937 SLI_CONFIG ext-buffer mailbox command "
|
|
"(x%x/x%x) complete bsg job done, bsize:%d\n",
|
|
phba->mbox_ext_buf_ctx.nembType,
|
|
phba->mbox_ext_buf_ctx.mboxType, size);
|
|
lpfc_idiag_mbxacc_dump_bsg_mbox(phba,
|
|
phba->mbox_ext_buf_ctx.nembType,
|
|
phba->mbox_ext_buf_ctx.mboxType,
|
|
dma_ebuf, sta_pos_addr,
|
|
phba->mbox_ext_buf_ctx.mbx_dmabuf, 0);
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2938 SLI_CONFIG ext-buffer mailbox "
|
|
"command (x%x/x%x) failure, rc:x%x\n",
|
|
phba->mbox_ext_buf_ctx.nembType,
|
|
phba->mbox_ext_buf_ctx.mboxType, rc);
|
|
}
|
|
|
|
|
|
/* state change */
|
|
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE;
|
|
kfree(dd_data);
|
|
return job;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmboxq: Pointer to mailbox command.
|
|
*
|
|
* This is completion handler function for mailbox read commands with multiple
|
|
* external buffers.
|
|
**/
|
|
static void
|
|
lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
|
|
{
|
|
struct bsg_job *job;
|
|
struct fc_bsg_reply *bsg_reply;
|
|
|
|
job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
|
|
|
|
/* handle the BSG job with mailbox command */
|
|
if (!job)
|
|
pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2939 SLI_CONFIG ext-buffer rd mailbox command "
|
|
"complete, ctxState:x%x, mbxStatus:x%x\n",
|
|
phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
|
|
|
|
if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1)
|
|
lpfc_bsg_mbox_ext_session_reset(phba);
|
|
|
|
/* free base driver mailbox structure memory */
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
|
|
/* if the job is still active, call job done */
|
|
if (job) {
|
|
bsg_reply = job->reply;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmboxq: Pointer to mailbox command.
|
|
*
|
|
* This is completion handler function for mailbox write commands with multiple
|
|
* external buffers.
|
|
**/
|
|
static void
|
|
lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
|
|
{
|
|
struct bsg_job *job;
|
|
struct fc_bsg_reply *bsg_reply;
|
|
|
|
job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
|
|
|
|
/* handle the BSG job with the mailbox command */
|
|
if (!job)
|
|
pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2940 SLI_CONFIG ext-buffer wr mailbox command "
|
|
"complete, ctxState:x%x, mbxStatus:x%x\n",
|
|
phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
|
|
|
|
/* free all memory, including dma buffers */
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
lpfc_bsg_mbox_ext_session_reset(phba);
|
|
|
|
/* if the job is still active, call job done */
|
|
if (job) {
|
|
bsg_reply = job->reply;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp,
|
|
uint32_t index, struct lpfc_dmabuf *mbx_dmabuf,
|
|
struct lpfc_dmabuf *ext_dmabuf)
|
|
{
|
|
struct lpfc_sli_config_mbox *sli_cfg_mbx;
|
|
|
|
/* pointer to the start of mailbox command */
|
|
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt;
|
|
|
|
if (nemb_tp == nemb_mse) {
|
|
if (index == 0) {
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[index].pa_hi =
|
|
putPaddrHigh(mbx_dmabuf->phys +
|
|
sizeof(MAILBOX_t));
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[index].pa_lo =
|
|
putPaddrLow(mbx_dmabuf->phys +
|
|
sizeof(MAILBOX_t));
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2943 SLI_CONFIG(mse)[%d], "
|
|
"bufLen:%d, addrHi:x%x, addrLo:x%x\n",
|
|
index,
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[index].buf_len,
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[index].pa_hi,
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[index].pa_lo);
|
|
} else {
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[index].pa_hi =
|
|
putPaddrHigh(ext_dmabuf->phys);
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[index].pa_lo =
|
|
putPaddrLow(ext_dmabuf->phys);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2944 SLI_CONFIG(mse)[%d], "
|
|
"bufLen:%d, addrHi:x%x, addrLo:x%x\n",
|
|
index,
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[index].buf_len,
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[index].pa_hi,
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[index].pa_lo);
|
|
}
|
|
} else {
|
|
if (index == 0) {
|
|
sli_cfg_mbx->un.sli_config_emb1_subsys.
|
|
hbd[index].pa_hi =
|
|
putPaddrHigh(mbx_dmabuf->phys +
|
|
sizeof(MAILBOX_t));
|
|
sli_cfg_mbx->un.sli_config_emb1_subsys.
|
|
hbd[index].pa_lo =
|
|
putPaddrLow(mbx_dmabuf->phys +
|
|
sizeof(MAILBOX_t));
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3007 SLI_CONFIG(hbd)[%d], "
|
|
"bufLen:%d, addrHi:x%x, addrLo:x%x\n",
|
|
index,
|
|
bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
|
|
&sli_cfg_mbx->un.
|
|
sli_config_emb1_subsys.hbd[index]),
|
|
sli_cfg_mbx->un.sli_config_emb1_subsys.
|
|
hbd[index].pa_hi,
|
|
sli_cfg_mbx->un.sli_config_emb1_subsys.
|
|
hbd[index].pa_lo);
|
|
|
|
} else {
|
|
sli_cfg_mbx->un.sli_config_emb1_subsys.
|
|
hbd[index].pa_hi =
|
|
putPaddrHigh(ext_dmabuf->phys);
|
|
sli_cfg_mbx->un.sli_config_emb1_subsys.
|
|
hbd[index].pa_lo =
|
|
putPaddrLow(ext_dmabuf->phys);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3008 SLI_CONFIG(hbd)[%d], "
|
|
"bufLen:%d, addrHi:x%x, addrLo:x%x\n",
|
|
index,
|
|
bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
|
|
&sli_cfg_mbx->un.
|
|
sli_config_emb1_subsys.hbd[index]),
|
|
sli_cfg_mbx->un.sli_config_emb1_subsys.
|
|
hbd[index].pa_hi,
|
|
sli_cfg_mbx->un.sli_config_emb1_subsys.
|
|
hbd[index].pa_lo);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_sli_cfg_read_cmd_ext - sli_config non-embedded mailbox cmd read
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: Pointer to the job object.
|
|
* @nemb_tp: Enumerate of non-embedded mailbox command type.
|
|
* @dmabuf: Pointer to a DMA buffer descriptor.
|
|
*
|
|
* This routine performs SLI_CONFIG (0x9B) read mailbox command operation with
|
|
* non-embedded external buffers.
|
|
**/
|
|
static int
|
|
lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct bsg_job *job,
|
|
enum nemb_type nemb_tp,
|
|
struct lpfc_dmabuf *dmabuf)
|
|
{
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct lpfc_sli_config_mbox *sli_cfg_mbx;
|
|
struct dfc_mbox_req *mbox_req;
|
|
struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf;
|
|
uint32_t ext_buf_cnt, ext_buf_index;
|
|
struct lpfc_dmabuf *ext_dmabuf = NULL;
|
|
struct bsg_job_data *dd_data = NULL;
|
|
LPFC_MBOXQ_t *pmboxq = NULL;
|
|
MAILBOX_t *pmb;
|
|
uint8_t *pmbx;
|
|
int rc, i;
|
|
|
|
mbox_req =
|
|
(struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
/* pointer to the start of mailbox command */
|
|
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
|
|
|
|
if (nemb_tp == nemb_mse) {
|
|
ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
|
|
&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
|
|
if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2945 Handled SLI_CONFIG(mse) rd, "
|
|
"ext_buf_cnt(%d) out of range(%d)\n",
|
|
ext_buf_cnt,
|
|
LPFC_MBX_SLI_CONFIG_MAX_MSE);
|
|
rc = -ERANGE;
|
|
goto job_error;
|
|
}
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2941 Handled SLI_CONFIG(mse) rd, "
|
|
"ext_buf_cnt:%d\n", ext_buf_cnt);
|
|
} else {
|
|
/* sanity check on interface type for support */
|
|
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
|
|
LPFC_SLI_INTF_IF_TYPE_2) {
|
|
rc = -ENODEV;
|
|
goto job_error;
|
|
}
|
|
/* nemb_tp == nemb_hbd */
|
|
ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
|
|
if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2946 Handled SLI_CONFIG(hbd) rd, "
|
|
"ext_buf_cnt(%d) out of range(%d)\n",
|
|
ext_buf_cnt,
|
|
LPFC_MBX_SLI_CONFIG_MAX_HBD);
|
|
rc = -ERANGE;
|
|
goto job_error;
|
|
}
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2942 Handled SLI_CONFIG(hbd) rd, "
|
|
"ext_buf_cnt:%d\n", ext_buf_cnt);
|
|
}
|
|
|
|
/* before dma descriptor setup */
|
|
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
|
|
sta_pre_addr, dmabuf, ext_buf_cnt);
|
|
|
|
/* reject non-embedded mailbox command with none external buffer */
|
|
if (ext_buf_cnt == 0) {
|
|
rc = -EPERM;
|
|
goto job_error;
|
|
} else if (ext_buf_cnt > 1) {
|
|
/* additional external read buffers */
|
|
for (i = 1; i < ext_buf_cnt; i++) {
|
|
ext_dmabuf = lpfc_bsg_dma_page_alloc(phba);
|
|
if (!ext_dmabuf) {
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
list_add_tail(&ext_dmabuf->list,
|
|
&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
|
|
}
|
|
}
|
|
|
|
/* bsg tracking structure */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
|
|
/* mailbox command structure for base driver */
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq) {
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
|
|
/* for the first external buffer */
|
|
lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
|
|
|
|
/* for the rest of external buffer descriptors if any */
|
|
if (ext_buf_cnt > 1) {
|
|
ext_buf_index = 1;
|
|
list_for_each_entry_safe(curr_dmabuf, next_dmabuf,
|
|
&phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) {
|
|
lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp,
|
|
ext_buf_index, dmabuf,
|
|
curr_dmabuf);
|
|
ext_buf_index++;
|
|
}
|
|
}
|
|
|
|
/* after dma descriptor setup */
|
|
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
|
|
sta_pos_addr, dmabuf, ext_buf_cnt);
|
|
|
|
/* construct base driver mbox command */
|
|
pmb = &pmboxq->u.mb;
|
|
pmbx = (uint8_t *)dmabuf->virt;
|
|
memcpy(pmb, pmbx, sizeof(*pmb));
|
|
pmb->mbxOwner = OWN_HOST;
|
|
pmboxq->vport = phba->pport;
|
|
|
|
/* multi-buffer handling context */
|
|
phba->mbox_ext_buf_ctx.nembType = nemb_tp;
|
|
phba->mbox_ext_buf_ctx.mboxType = mbox_rd;
|
|
phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
|
|
phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
|
|
phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
|
|
phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
|
|
|
|
/* callback for multi-buffer read mailbox command */
|
|
pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl;
|
|
|
|
/* context fields to callback function */
|
|
pmboxq->ctx_buf = dd_data;
|
|
dd_data->type = TYPE_MBOX;
|
|
dd_data->set_job = job;
|
|
dd_data->context_un.mbox.pmboxq = pmboxq;
|
|
dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
|
|
job->dd_data = dd_data;
|
|
|
|
/* state change */
|
|
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
|
|
|
|
/*
|
|
* Non-embedded mailbox subcommand data gets byte swapped here because
|
|
* the lower level driver code only does the first 64 mailbox words.
|
|
*/
|
|
if ((!bsg_bf_get(lpfc_mbox_hdr_emb,
|
|
&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) &&
|
|
(nemb_tp == nemb_mse))
|
|
lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
|
|
&pmbx[sizeof(MAILBOX_t)],
|
|
sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[0].buf_len);
|
|
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
|
|
if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2947 Issued SLI_CONFIG ext-buffer "
|
|
"mailbox command, rc:x%x\n", rc);
|
|
return SLI_CONFIG_HANDLED;
|
|
}
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2948 Failed to issue SLI_CONFIG ext-buffer "
|
|
"mailbox command, rc:x%x\n", rc);
|
|
rc = -EPIPE;
|
|
|
|
job_error:
|
|
if (pmboxq)
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
lpfc_bsg_dma_page_list_free(phba,
|
|
&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
|
|
kfree(dd_data);
|
|
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: Pointer to the job object.
|
|
* @nemb_tp: Enumerate of non-embedded mailbox command type.
|
|
* @dmabuf: Pointer to a DMA buffer descriptor.
|
|
*
|
|
* This routine performs SLI_CONFIG (0x9B) write mailbox command operation with
|
|
* non-embedded external buffers.
|
|
**/
|
|
static int
|
|
lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct bsg_job *job,
|
|
enum nemb_type nemb_tp,
|
|
struct lpfc_dmabuf *dmabuf)
|
|
{
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct dfc_mbox_req *mbox_req;
|
|
struct lpfc_sli_config_mbox *sli_cfg_mbx;
|
|
uint32_t ext_buf_cnt;
|
|
struct bsg_job_data *dd_data = NULL;
|
|
LPFC_MBOXQ_t *pmboxq = NULL;
|
|
MAILBOX_t *pmb;
|
|
uint8_t *mbx;
|
|
int rc = SLI_CONFIG_NOT_HANDLED, i;
|
|
|
|
mbox_req =
|
|
(struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
/* pointer to the start of mailbox command */
|
|
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
|
|
|
|
if (nemb_tp == nemb_mse) {
|
|
ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
|
|
&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
|
|
if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2953 Failed SLI_CONFIG(mse) wr, "
|
|
"ext_buf_cnt(%d) out of range(%d)\n",
|
|
ext_buf_cnt,
|
|
LPFC_MBX_SLI_CONFIG_MAX_MSE);
|
|
return -ERANGE;
|
|
}
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2949 Handled SLI_CONFIG(mse) wr, "
|
|
"ext_buf_cnt:%d\n", ext_buf_cnt);
|
|
} else {
|
|
/* sanity check on interface type for support */
|
|
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
|
|
LPFC_SLI_INTF_IF_TYPE_2)
|
|
return -ENODEV;
|
|
/* nemb_tp == nemb_hbd */
|
|
ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
|
|
if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2954 Failed SLI_CONFIG(hbd) wr, "
|
|
"ext_buf_cnt(%d) out of range(%d)\n",
|
|
ext_buf_cnt,
|
|
LPFC_MBX_SLI_CONFIG_MAX_HBD);
|
|
return -ERANGE;
|
|
}
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2950 Handled SLI_CONFIG(hbd) wr, "
|
|
"ext_buf_cnt:%d\n", ext_buf_cnt);
|
|
}
|
|
|
|
/* before dma buffer descriptor setup */
|
|
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
|
|
sta_pre_addr, dmabuf, ext_buf_cnt);
|
|
|
|
if (ext_buf_cnt == 0)
|
|
return -EPERM;
|
|
|
|
/* for the first external buffer */
|
|
lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
|
|
|
|
/* after dma descriptor setup */
|
|
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
|
|
sta_pos_addr, dmabuf, ext_buf_cnt);
|
|
|
|
/* log for looking forward */
|
|
for (i = 1; i < ext_buf_cnt; i++) {
|
|
if (nemb_tp == nemb_mse)
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2951 SLI_CONFIG(mse), buf[%d]-length:%d\n",
|
|
i, sli_cfg_mbx->un.sli_config_emb0_subsys.
|
|
mse[i].buf_len);
|
|
else
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n",
|
|
i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
|
|
&sli_cfg_mbx->un.sli_config_emb1_subsys.
|
|
hbd[i]));
|
|
}
|
|
|
|
/* multi-buffer handling context */
|
|
phba->mbox_ext_buf_ctx.nembType = nemb_tp;
|
|
phba->mbox_ext_buf_ctx.mboxType = mbox_wr;
|
|
phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
|
|
phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
|
|
phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
|
|
phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
|
|
|
|
if (ext_buf_cnt == 1) {
|
|
/* bsg tracking structure */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
|
|
/* mailbox command structure for base driver */
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq) {
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
pmb = &pmboxq->u.mb;
|
|
mbx = (uint8_t *)dmabuf->virt;
|
|
memcpy(pmb, mbx, sizeof(*pmb));
|
|
pmb->mbxOwner = OWN_HOST;
|
|
pmboxq->vport = phba->pport;
|
|
|
|
/* callback for multi-buffer read mailbox command */
|
|
pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
|
|
|
|
/* context fields to callback function */
|
|
pmboxq->ctx_buf = dd_data;
|
|
dd_data->type = TYPE_MBOX;
|
|
dd_data->set_job = job;
|
|
dd_data->context_un.mbox.pmboxq = pmboxq;
|
|
dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx;
|
|
job->dd_data = dd_data;
|
|
|
|
/* state change */
|
|
|
|
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
|
|
if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2955 Issued SLI_CONFIG ext-buffer "
|
|
"mailbox command, rc:x%x\n", rc);
|
|
return SLI_CONFIG_HANDLED;
|
|
}
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2956 Failed to issue SLI_CONFIG ext-buffer "
|
|
"mailbox command, rc:x%x\n", rc);
|
|
rc = -EPIPE;
|
|
goto job_error;
|
|
}
|
|
|
|
/* wait for additional external buffers */
|
|
|
|
bsg_reply->result = 0;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return SLI_CONFIG_HANDLED;
|
|
|
|
job_error:
|
|
if (pmboxq)
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
kfree(dd_data);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: Pointer to the job object.
|
|
* @dmabuf: Pointer to a DMA buffer descriptor.
|
|
*
|
|
* This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded
|
|
* external buffers, including both 0x9B with non-embedded MSEs and 0x9B
|
|
* with embedded subsystem 0x1 and opcodes with external HBDs.
|
|
**/
|
|
static int
|
|
lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct bsg_job *job,
|
|
struct lpfc_dmabuf *dmabuf)
|
|
{
|
|
struct lpfc_sli_config_mbox *sli_cfg_mbx;
|
|
uint32_t subsys;
|
|
uint32_t opcode;
|
|
int rc = SLI_CONFIG_NOT_HANDLED;
|
|
|
|
/* state change on new multi-buffer pass-through mailbox command */
|
|
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST;
|
|
|
|
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
|
|
|
|
if (!bsg_bf_get(lpfc_mbox_hdr_emb,
|
|
&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
|
|
subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys,
|
|
&sli_cfg_mbx->un.sli_config_emb0_subsys);
|
|
opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode,
|
|
&sli_cfg_mbx->un.sli_config_emb0_subsys);
|
|
if (subsys == SLI_CONFIG_SUBSYS_FCOE) {
|
|
switch (opcode) {
|
|
case FCOE_OPCODE_READ_FCF:
|
|
case FCOE_OPCODE_GET_DPORT_RESULTS:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2957 Handled SLI_CONFIG "
|
|
"subsys_fcoe, opcode:x%x\n",
|
|
opcode);
|
|
rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
|
|
nemb_mse, dmabuf);
|
|
break;
|
|
case FCOE_OPCODE_ADD_FCF:
|
|
case FCOE_OPCODE_SET_DPORT_MODE:
|
|
case LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2958 Handled SLI_CONFIG "
|
|
"subsys_fcoe, opcode:x%x\n",
|
|
opcode);
|
|
rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
|
|
nemb_mse, dmabuf);
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2959 Reject SLI_CONFIG "
|
|
"subsys_fcoe, opcode:x%x\n",
|
|
opcode);
|
|
rc = -EPERM;
|
|
break;
|
|
}
|
|
} else if (subsys == SLI_CONFIG_SUBSYS_COMN) {
|
|
switch (opcode) {
|
|
case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES:
|
|
case COMN_OPCODE_GET_CNTL_ATTRIBUTES:
|
|
case COMN_OPCODE_GET_PROFILE_CONFIG:
|
|
case COMN_OPCODE_SET_FEATURES:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3106 Handled SLI_CONFIG "
|
|
"subsys_comn, opcode:x%x\n",
|
|
opcode);
|
|
rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
|
|
nemb_mse, dmabuf);
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"3107 Reject SLI_CONFIG "
|
|
"subsys_comn, opcode:x%x\n",
|
|
opcode);
|
|
rc = -EPERM;
|
|
break;
|
|
}
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2977 Reject SLI_CONFIG "
|
|
"subsys:x%d, opcode:x%x\n",
|
|
subsys, opcode);
|
|
rc = -EPERM;
|
|
}
|
|
} else {
|
|
subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys,
|
|
&sli_cfg_mbx->un.sli_config_emb1_subsys);
|
|
opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode,
|
|
&sli_cfg_mbx->un.sli_config_emb1_subsys);
|
|
if (subsys == SLI_CONFIG_SUBSYS_COMN) {
|
|
switch (opcode) {
|
|
case COMN_OPCODE_READ_OBJECT:
|
|
case COMN_OPCODE_READ_OBJECT_LIST:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2960 Handled SLI_CONFIG "
|
|
"subsys_comn, opcode:x%x\n",
|
|
opcode);
|
|
rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
|
|
nemb_hbd, dmabuf);
|
|
break;
|
|
case COMN_OPCODE_WRITE_OBJECT:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2961 Handled SLI_CONFIG "
|
|
"subsys_comn, opcode:x%x\n",
|
|
opcode);
|
|
rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
|
|
nemb_hbd, dmabuf);
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2962 Not handled SLI_CONFIG "
|
|
"subsys_comn, opcode:x%x\n",
|
|
opcode);
|
|
rc = SLI_CONFIG_NOT_HANDLED;
|
|
break;
|
|
}
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2978 Not handled SLI_CONFIG "
|
|
"subsys:x%d, opcode:x%x\n",
|
|
subsys, opcode);
|
|
rc = SLI_CONFIG_NOT_HANDLED;
|
|
}
|
|
}
|
|
|
|
/* state reset on not handled new multi-buffer mailbox command */
|
|
if (rc != SLI_CONFIG_HANDLED)
|
|
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_mbox_ext_abort - request to abort mbox command with ext buffers
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This routine is for requesting to abort a pass-through mailbox command with
|
|
* multiple external buffers due to error condition.
|
|
**/
|
|
static void
|
|
lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba)
|
|
{
|
|
if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
|
|
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
|
|
else
|
|
lpfc_bsg_mbox_ext_session_reset(phba);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: Pointer to the job object.
|
|
*
|
|
* This routine extracts the next mailbox read external buffer back to
|
|
* user space through BSG.
|
|
**/
|
|
static int
|
|
lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct bsg_job *job)
|
|
{
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct lpfc_sli_config_mbox *sli_cfg_mbx;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
uint8_t *pbuf;
|
|
uint32_t size;
|
|
uint32_t index;
|
|
|
|
index = phba->mbox_ext_buf_ctx.seqNum;
|
|
phba->mbox_ext_buf_ctx.seqNum++;
|
|
|
|
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)
|
|
phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
|
|
|
|
if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
|
|
size = bsg_bf_get(lpfc_mbox_sli_config_mse_len,
|
|
&sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2963 SLI_CONFIG (mse) ext-buffer rd get "
|
|
"buffer[%d], size:%d\n", index, size);
|
|
} else {
|
|
size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
|
|
&sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2964 SLI_CONFIG (hbd) ext-buffer rd get "
|
|
"buffer[%d], size:%d\n", index, size);
|
|
}
|
|
if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list))
|
|
return -EPIPE;
|
|
dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list,
|
|
struct lpfc_dmabuf, list);
|
|
list_del_init(&dmabuf->list);
|
|
|
|
/* after dma buffer descriptor setup */
|
|
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
|
|
mbox_rd, dma_ebuf, sta_pos_addr,
|
|
dmabuf, index);
|
|
|
|
pbuf = (uint8_t *)dmabuf->virt;
|
|
bsg_reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
pbuf, size);
|
|
|
|
lpfc_bsg_dma_page_free(phba, dmabuf);
|
|
|
|
if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2965 SLI_CONFIG (hbd) ext-buffer rd mbox "
|
|
"command session done\n");
|
|
lpfc_bsg_mbox_ext_session_reset(phba);
|
|
}
|
|
|
|
bsg_reply->result = 0;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
|
|
return SLI_CONFIG_HANDLED;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: Pointer to the job object.
|
|
* @dmabuf: Pointer to a DMA buffer descriptor.
|
|
*
|
|
* This routine sets up the next mailbox read external buffer obtained
|
|
* from user space through BSG.
|
|
**/
|
|
static int
|
|
lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct bsg_job *job,
|
|
struct lpfc_dmabuf *dmabuf)
|
|
{
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct bsg_job_data *dd_data = NULL;
|
|
LPFC_MBOXQ_t *pmboxq = NULL;
|
|
MAILBOX_t *pmb;
|
|
enum nemb_type nemb_tp;
|
|
uint8_t *pbuf;
|
|
uint32_t size;
|
|
uint32_t index;
|
|
int rc;
|
|
|
|
index = phba->mbox_ext_buf_ctx.seqNum;
|
|
phba->mbox_ext_buf_ctx.seqNum++;
|
|
nemb_tp = phba->mbox_ext_buf_ctx.nembType;
|
|
|
|
pbuf = (uint8_t *)dmabuf->virt;
|
|
size = job->request_payload.payload_len;
|
|
sg_copy_to_buffer(job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt,
|
|
pbuf, size);
|
|
|
|
if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2966 SLI_CONFIG (mse) ext-buffer wr set "
|
|
"buffer[%d], size:%d\n",
|
|
phba->mbox_ext_buf_ctx.seqNum, size);
|
|
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2967 SLI_CONFIG (hbd) ext-buffer wr set "
|
|
"buffer[%d], size:%d\n",
|
|
phba->mbox_ext_buf_ctx.seqNum, size);
|
|
|
|
}
|
|
|
|
/* set up external buffer descriptor and add to external buffer list */
|
|
lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index,
|
|
phba->mbox_ext_buf_ctx.mbx_dmabuf,
|
|
dmabuf);
|
|
list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
|
|
|
|
/* after write dma buffer */
|
|
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
|
|
mbox_wr, dma_ebuf, sta_pos_addr,
|
|
dmabuf, index);
|
|
|
|
if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2968 SLI_CONFIG ext-buffer wr all %d "
|
|
"ebuffers received\n",
|
|
phba->mbox_ext_buf_ctx.numBuf);
|
|
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
|
|
/* mailbox command structure for base driver */
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq) {
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
|
|
pmb = &pmboxq->u.mb;
|
|
memcpy(pmb, pbuf, sizeof(*pmb));
|
|
pmb->mbxOwner = OWN_HOST;
|
|
pmboxq->vport = phba->pport;
|
|
|
|
/* callback for multi-buffer write mailbox command */
|
|
pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
|
|
|
|
/* context fields to callback function */
|
|
pmboxq->ctx_buf = dd_data;
|
|
dd_data->type = TYPE_MBOX;
|
|
dd_data->set_job = job;
|
|
dd_data->context_un.mbox.pmboxq = pmboxq;
|
|
dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf;
|
|
job->dd_data = dd_data;
|
|
|
|
/* state change */
|
|
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
|
|
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
|
|
if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2969 Issued SLI_CONFIG ext-buffer "
|
|
"mailbox command, rc:x%x\n", rc);
|
|
return SLI_CONFIG_HANDLED;
|
|
}
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2970 Failed to issue SLI_CONFIG ext-buffer "
|
|
"mailbox command, rc:x%x\n", rc);
|
|
rc = -EPIPE;
|
|
goto job_error;
|
|
}
|
|
|
|
/* wait for additional external buffers */
|
|
bsg_reply->result = 0;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return SLI_CONFIG_HANDLED;
|
|
|
|
job_error:
|
|
if (pmboxq)
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
lpfc_bsg_dma_page_free(phba, dmabuf);
|
|
kfree(dd_data);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: Pointer to the job object.
|
|
* @dmabuf: Pointer to a DMA buffer descriptor.
|
|
*
|
|
* This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox
|
|
* command with multiple non-embedded external buffers.
|
|
**/
|
|
static int
|
|
lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct bsg_job *job,
|
|
struct lpfc_dmabuf *dmabuf)
|
|
{
|
|
int rc;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2971 SLI_CONFIG buffer (type:x%x)\n",
|
|
phba->mbox_ext_buf_ctx.mboxType);
|
|
|
|
if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) {
|
|
if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2972 SLI_CONFIG rd buffer state "
|
|
"mismatch:x%x\n",
|
|
phba->mbox_ext_buf_ctx.state);
|
|
lpfc_bsg_mbox_ext_abort(phba);
|
|
return -EPIPE;
|
|
}
|
|
rc = lpfc_bsg_read_ebuf_get(phba, job);
|
|
if (rc == SLI_CONFIG_HANDLED)
|
|
lpfc_bsg_dma_page_free(phba, dmabuf);
|
|
} else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */
|
|
if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2973 SLI_CONFIG wr buffer state "
|
|
"mismatch:x%x\n",
|
|
phba->mbox_ext_buf_ctx.state);
|
|
lpfc_bsg_mbox_ext_abort(phba);
|
|
return -EPIPE;
|
|
}
|
|
rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: Pointer to the job object.
|
|
* @dmabuf: Pointer to a DMA buffer descriptor.
|
|
*
|
|
* This routine checks and handles non-embedded multi-buffer SLI_CONFIG
|
|
* (0x9B) mailbox commands and external buffers.
|
|
**/
|
|
static int
|
|
lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct bsg_job *job,
|
|
struct lpfc_dmabuf *dmabuf)
|
|
{
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct dfc_mbox_req *mbox_req;
|
|
int rc = SLI_CONFIG_NOT_HANDLED;
|
|
|
|
mbox_req =
|
|
(struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
/* mbox command with/without single external buffer */
|
|
if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0)
|
|
return rc;
|
|
|
|
/* mbox command and first external buffer */
|
|
if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) {
|
|
if (mbox_req->extSeqNum == 1) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2974 SLI_CONFIG mailbox: tag:%d, "
|
|
"seq:%d\n", mbox_req->extMboxTag,
|
|
mbox_req->extSeqNum);
|
|
rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf);
|
|
return rc;
|
|
} else
|
|
goto sli_cfg_ext_error;
|
|
}
|
|
|
|
/*
|
|
* handle additional external buffers
|
|
*/
|
|
|
|
/* check broken pipe conditions */
|
|
if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag)
|
|
goto sli_cfg_ext_error;
|
|
if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf)
|
|
goto sli_cfg_ext_error;
|
|
if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1)
|
|
goto sli_cfg_ext_error;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2975 SLI_CONFIG mailbox external buffer: "
|
|
"extSta:x%x, tag:%d, seq:%d\n",
|
|
phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag,
|
|
mbox_req->extSeqNum);
|
|
rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf);
|
|
return rc;
|
|
|
|
sli_cfg_ext_error:
|
|
/* all other cases, broken pipe */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2976 SLI_CONFIG mailbox broken pipe: "
|
|
"ctxSta:x%x, ctxNumBuf:%d "
|
|
"ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n",
|
|
phba->mbox_ext_buf_ctx.state,
|
|
phba->mbox_ext_buf_ctx.numBuf,
|
|
phba->mbox_ext_buf_ctx.mbxTag,
|
|
phba->mbox_ext_buf_ctx.seqNum,
|
|
mbox_req->extMboxTag, mbox_req->extSeqNum);
|
|
|
|
lpfc_bsg_mbox_ext_session_reset(phba);
|
|
|
|
return -EPIPE;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: Pointer to the job object.
|
|
* @vport: Pointer to a vport object.
|
|
*
|
|
* Allocate a tracking object, mailbox command memory, get a mailbox
|
|
* from the mailbox pool, copy the caller mailbox command.
|
|
*
|
|
* If offline and the sli is active we need to poll for the command (port is
|
|
* being reset) and complete the job, otherwise issue the mailbox command and
|
|
* let our completion handler finish the command.
|
|
**/
|
|
static int
|
|
lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct bsg_job *job,
|
|
struct lpfc_vport *vport)
|
|
{
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */
|
|
MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */
|
|
/* a 4k buffer to hold the mb and extended data from/to the bsg */
|
|
uint8_t *pmbx = NULL;
|
|
struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */
|
|
struct lpfc_dmabuf *dmabuf = NULL;
|
|
struct dfc_mbox_req *mbox_req;
|
|
struct READ_EVENT_LOG_VAR *rdEventLog;
|
|
uint32_t transmit_length, receive_length, mode;
|
|
struct lpfc_mbx_sli4_config *sli4_config;
|
|
struct lpfc_mbx_nembed_cmd *nembed_sge;
|
|
struct ulp_bde64 *bde;
|
|
uint8_t *ext = NULL;
|
|
int rc = 0;
|
|
uint8_t *from;
|
|
uint32_t size;
|
|
|
|
/* in case no data is transferred */
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
|
|
/* sanity check to protect driver */
|
|
if (job->reply_payload.payload_len > BSG_MBOX_SIZE ||
|
|
job->request_payload.payload_len > BSG_MBOX_SIZE) {
|
|
rc = -ERANGE;
|
|
goto job_done;
|
|
}
|
|
|
|
/*
|
|
* Don't allow mailbox commands to be sent when blocked or when in
|
|
* the middle of discovery
|
|
*/
|
|
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
|
|
rc = -EAGAIN;
|
|
goto job_done;
|
|
}
|
|
|
|
mbox_req =
|
|
(struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
/* check if requested extended data lengths are valid */
|
|
if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) ||
|
|
(mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) {
|
|
rc = -ERANGE;
|
|
goto job_done;
|
|
}
|
|
|
|
dmabuf = lpfc_bsg_dma_page_alloc(phba);
|
|
if (!dmabuf || !dmabuf->virt) {
|
|
rc = -ENOMEM;
|
|
goto job_done;
|
|
}
|
|
|
|
/* Get the mailbox command or external buffer from BSG */
|
|
pmbx = (uint8_t *)dmabuf->virt;
|
|
size = job->request_payload.payload_len;
|
|
sg_copy_to_buffer(job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt, pmbx, size);
|
|
|
|
/* Handle possible SLI_CONFIG with non-embedded payloads */
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf);
|
|
if (rc == SLI_CONFIG_HANDLED)
|
|
goto job_cont;
|
|
if (rc)
|
|
goto job_done;
|
|
/* SLI_CONFIG_NOT_HANDLED for other mailbox commands */
|
|
}
|
|
|
|
rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport);
|
|
if (rc != 0)
|
|
goto job_done; /* must be negative */
|
|
|
|
/* allocate our bsg tracking structure */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2727 Failed allocation of dd_data\n");
|
|
rc = -ENOMEM;
|
|
goto job_done;
|
|
}
|
|
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq) {
|
|
rc = -ENOMEM;
|
|
goto job_done;
|
|
}
|
|
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
|
|
pmb = &pmboxq->u.mb;
|
|
memcpy(pmb, pmbx, sizeof(*pmb));
|
|
pmb->mbxOwner = OWN_HOST;
|
|
pmboxq->vport = vport;
|
|
|
|
/* If HBA encountered an error attention, allow only DUMP
|
|
* or RESTART mailbox commands until the HBA is restarted.
|
|
*/
|
|
if (phba->pport->stopped &&
|
|
pmb->mbxCommand != MBX_DUMP_MEMORY &&
|
|
pmb->mbxCommand != MBX_RESTART &&
|
|
pmb->mbxCommand != MBX_WRITE_VPARMS &&
|
|
pmb->mbxCommand != MBX_WRITE_WWN)
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
|
|
"2797 mbox: Issued mailbox cmd "
|
|
"0x%x while in stopped state.\n",
|
|
pmb->mbxCommand);
|
|
|
|
/* extended mailbox commands will need an extended buffer */
|
|
if (mbox_req->inExtWLen || mbox_req->outExtWLen) {
|
|
from = pmbx;
|
|
ext = from + sizeof(MAILBOX_t);
|
|
pmboxq->ctx_buf = ext;
|
|
pmboxq->in_ext_byte_len =
|
|
mbox_req->inExtWLen * sizeof(uint32_t);
|
|
pmboxq->out_ext_byte_len =
|
|
mbox_req->outExtWLen * sizeof(uint32_t);
|
|
pmboxq->mbox_offset_word = mbox_req->mbOffset;
|
|
}
|
|
|
|
/* biu diag will need a kernel buffer to transfer the data
|
|
* allocate our own buffer and setup the mailbox command to
|
|
* use ours
|
|
*/
|
|
if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) {
|
|
transmit_length = pmb->un.varWords[1];
|
|
receive_length = pmb->un.varWords[4];
|
|
/* transmit length cannot be greater than receive length or
|
|
* mailbox extension size
|
|
*/
|
|
if ((transmit_length > receive_length) ||
|
|
(transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
|
|
rc = -ERANGE;
|
|
goto job_done;
|
|
}
|
|
pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh =
|
|
putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t));
|
|
pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow =
|
|
putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t));
|
|
|
|
pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh =
|
|
putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)
|
|
+ pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
|
|
pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow =
|
|
putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)
|
|
+ pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
|
|
} else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) {
|
|
rdEventLog = &pmb->un.varRdEventLog;
|
|
receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize;
|
|
mode = bf_get(lpfc_event_log, rdEventLog);
|
|
|
|
/* receive length cannot be greater than mailbox
|
|
* extension size
|
|
*/
|
|
if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
|
|
rc = -ERANGE;
|
|
goto job_done;
|
|
}
|
|
|
|
/* mode zero uses a bde like biu diags command */
|
|
if (mode == 0) {
|
|
pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
|
|
+ sizeof(MAILBOX_t));
|
|
pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
|
|
+ sizeof(MAILBOX_t));
|
|
}
|
|
} else if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
/* Let type 4 (well known data) through because the data is
|
|
* returned in varwords[4-8]
|
|
* otherwise check the recieve length and fetch the buffer addr
|
|
*/
|
|
if ((pmb->mbxCommand == MBX_DUMP_MEMORY) &&
|
|
(pmb->un.varDmp.type != DMP_WELL_KNOWN)) {
|
|
/* rebuild the command for sli4 using our own buffers
|
|
* like we do for biu diags
|
|
*/
|
|
receive_length = pmb->un.varWords[2];
|
|
/* receive length cannot be greater than mailbox
|
|
* extension size
|
|
*/
|
|
if (receive_length == 0) {
|
|
rc = -ERANGE;
|
|
goto job_done;
|
|
}
|
|
pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
|
|
+ sizeof(MAILBOX_t));
|
|
pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
|
|
+ sizeof(MAILBOX_t));
|
|
} else if ((pmb->mbxCommand == MBX_UPDATE_CFG) &&
|
|
pmb->un.varUpdateCfg.co) {
|
|
bde = (struct ulp_bde64 *)&pmb->un.varWords[4];
|
|
|
|
/* bde size cannot be greater than mailbox ext size */
|
|
if (bde->tus.f.bdeSize >
|
|
BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
|
|
rc = -ERANGE;
|
|
goto job_done;
|
|
}
|
|
bde->addrHigh = putPaddrHigh(dmabuf->phys
|
|
+ sizeof(MAILBOX_t));
|
|
bde->addrLow = putPaddrLow(dmabuf->phys
|
|
+ sizeof(MAILBOX_t));
|
|
} else if (pmb->mbxCommand == MBX_SLI4_CONFIG) {
|
|
/* Handling non-embedded SLI_CONFIG mailbox command */
|
|
sli4_config = &pmboxq->u.mqe.un.sli4_config;
|
|
if (!bf_get(lpfc_mbox_hdr_emb,
|
|
&sli4_config->header.cfg_mhdr)) {
|
|
/* rebuild the command for sli4 using our
|
|
* own buffers like we do for biu diags
|
|
*/
|
|
nembed_sge = (struct lpfc_mbx_nembed_cmd *)
|
|
&pmb->un.varWords[0];
|
|
receive_length = nembed_sge->sge[0].length;
|
|
|
|
/* receive length cannot be greater than
|
|
* mailbox extension size
|
|
*/
|
|
if ((receive_length == 0) ||
|
|
(receive_length >
|
|
BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
|
|
rc = -ERANGE;
|
|
goto job_done;
|
|
}
|
|
|
|
nembed_sge->sge[0].pa_hi =
|
|
putPaddrHigh(dmabuf->phys
|
|
+ sizeof(MAILBOX_t));
|
|
nembed_sge->sge[0].pa_lo =
|
|
putPaddrLow(dmabuf->phys
|
|
+ sizeof(MAILBOX_t));
|
|
}
|
|
}
|
|
}
|
|
|
|
dd_data->context_un.mbox.dmabuffers = dmabuf;
|
|
|
|
/* setup wake call as IOCB callback */
|
|
pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl;
|
|
|
|
/* setup context field to pass wait_queue pointer to wake function */
|
|
pmboxq->ctx_ndlp = dd_data;
|
|
dd_data->type = TYPE_MBOX;
|
|
dd_data->set_job = job;
|
|
dd_data->context_un.mbox.pmboxq = pmboxq;
|
|
dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
|
|
dd_data->context_un.mbox.ext = ext;
|
|
dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset;
|
|
dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen;
|
|
dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen;
|
|
job->dd_data = dd_data;
|
|
|
|
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
|
|
(!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
|
|
if (rc != MBX_SUCCESS) {
|
|
rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
|
|
goto job_done;
|
|
}
|
|
|
|
/* job finished, copy the data */
|
|
memcpy(pmbx, pmb, sizeof(*pmb));
|
|
bsg_reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
pmbx, size);
|
|
/* not waiting mbox already done */
|
|
rc = 0;
|
|
goto job_done;
|
|
}
|
|
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
|
|
if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY))
|
|
return 1; /* job started */
|
|
|
|
job_done:
|
|
/* common exit for error or job completed inline */
|
|
if (pmboxq)
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
lpfc_bsg_dma_page_free(phba, dmabuf);
|
|
kfree(dd_data);
|
|
|
|
job_cont:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command
|
|
* @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX.
|
|
**/
|
|
static int
|
|
lpfc_bsg_mbox_cmd(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct dfc_mbox_req *mbox_req;
|
|
int rc = 0;
|
|
|
|
/* mix-and-match backward compatibility */
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
|
|
"2737 Mix-and-match backward compatibility "
|
|
"between MBOX_REQ old size:%d and "
|
|
"new request size:%d\n",
|
|
(int)(job->request_len -
|
|
sizeof(struct fc_bsg_request)),
|
|
(int)sizeof(struct dfc_mbox_req));
|
|
mbox_req = (struct dfc_mbox_req *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
mbox_req->extMboxTag = 0;
|
|
mbox_req->extSeqNum = 0;
|
|
}
|
|
|
|
rc = lpfc_bsg_issue_mbox(phba, job, vport);
|
|
|
|
if (rc == 0) {
|
|
/* job done */
|
|
bsg_reply->result = 0;
|
|
job->dd_data = NULL;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
} else if (rc == 1)
|
|
/* job submitted, will complete later*/
|
|
rc = 0; /* return zero, no error */
|
|
else {
|
|
/* some error occurred */
|
|
bsg_reply->result = rc;
|
|
job->dd_data = NULL;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmdiocbq: Pointer to command iocb.
|
|
* @rspiocbq: Pointer to response iocb.
|
|
*
|
|
* This function is the completion handler for iocbs issued using
|
|
* lpfc_menlo_cmd function. This function is called by the
|
|
* ring event handler function without any lock held. This function
|
|
* can be called from both worker thread context and interrupt
|
|
* context. This function also can be called from another thread which
|
|
* cleans up the SLI layer objects.
|
|
* This function copies the contents of the response iocb to the
|
|
* response iocb memory object provided by the caller of
|
|
* lpfc_sli_issue_iocb_wait and then wakes up the thread which
|
|
* sleeps for the iocb completion.
|
|
**/
|
|
static void
|
|
lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *cmdiocbq,
|
|
struct lpfc_iocbq *rspiocbq)
|
|
{
|
|
struct bsg_job_data *dd_data;
|
|
struct bsg_job *job;
|
|
struct fc_bsg_reply *bsg_reply;
|
|
IOCB_t *rsp;
|
|
struct lpfc_dmabuf *bmp, *cmp, *rmp;
|
|
struct lpfc_bsg_menlo *menlo;
|
|
unsigned long flags;
|
|
struct menlo_response *menlo_resp;
|
|
unsigned int rsp_size;
|
|
int rc = 0;
|
|
|
|
dd_data = cmdiocbq->context1;
|
|
cmp = cmdiocbq->context2;
|
|
bmp = cmdiocbq->context3;
|
|
menlo = &dd_data->context_un.menlo;
|
|
rmp = menlo->rmp;
|
|
rsp = &rspiocbq->iocb;
|
|
|
|
/* Determine if job has been aborted */
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
job = dd_data->set_job;
|
|
if (job) {
|
|
bsg_reply = job->reply;
|
|
/* Prevent timeout handling from trying to abort job */
|
|
job->dd_data = NULL;
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
/* Copy the job data or set the failing status for the job */
|
|
|
|
if (job) {
|
|
/* always return the xri, this would be used in the case
|
|
* of a menlo download to allow the data to be sent as a
|
|
* continuation of the exchange.
|
|
*/
|
|
|
|
menlo_resp = (struct menlo_response *)
|
|
bsg_reply->reply_data.vendor_reply.vendor_rsp;
|
|
menlo_resp->xri = rsp->ulpContext;
|
|
if (rsp->ulpStatus) {
|
|
if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
|
|
switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
|
|
case IOERR_SEQUENCE_TIMEOUT:
|
|
rc = -ETIMEDOUT;
|
|
break;
|
|
case IOERR_INVALID_RPI:
|
|
rc = -EFAULT;
|
|
break;
|
|
default:
|
|
rc = -EACCES;
|
|
break;
|
|
}
|
|
} else {
|
|
rc = -EACCES;
|
|
}
|
|
} else {
|
|
rsp_size = rsp->un.genreq64.bdl.bdeSize;
|
|
bsg_reply->reply_payload_rcv_len =
|
|
lpfc_bsg_copy_data(rmp, &job->reply_payload,
|
|
rsp_size, 0);
|
|
}
|
|
|
|
}
|
|
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
lpfc_free_bsg_buffers(phba, cmp);
|
|
lpfc_free_bsg_buffers(phba, rmp);
|
|
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
|
|
kfree(bmp);
|
|
kfree(dd_data);
|
|
|
|
/* Complete the job if active */
|
|
|
|
if (job) {
|
|
bsg_reply->result = rc;
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_menlo_cmd - send an ioctl for menlo hardware
|
|
* @job: fc_bsg_job to handle
|
|
*
|
|
* This function issues a gen request 64 CR ioctl for all menlo cmd requests,
|
|
* all the command completions will return the xri for the command.
|
|
* For menlo data requests a gen request 64 CX is used to continue the exchange
|
|
* supplied in the menlo request header xri field.
|
|
**/
|
|
static int
|
|
lpfc_menlo_cmd(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *cmdiocbq;
|
|
IOCB_t *cmd;
|
|
int rc = 0;
|
|
struct menlo_command *menlo_cmd;
|
|
struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
|
|
int request_nseg;
|
|
int reply_nseg;
|
|
struct bsg_job_data *dd_data;
|
|
struct ulp_bde64 *bpl = NULL;
|
|
|
|
/* in case no data is returned return just the return code */
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) +
|
|
sizeof(struct menlo_command)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2784 Received MENLO_CMD request below "
|
|
"minimum size\n");
|
|
rc = -ERANGE;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
if (job->reply_len < sizeof(*bsg_reply) +
|
|
sizeof(struct menlo_response)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2785 Received MENLO_CMD reply below "
|
|
"minimum size\n");
|
|
rc = -ERANGE;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2786 Adapter does not support menlo "
|
|
"commands\n");
|
|
rc = -EPERM;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
menlo_cmd = (struct menlo_command *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
/* allocate our bsg tracking structure */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2787 Failed allocation of dd_data\n");
|
|
rc = -ENOMEM;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (!bmp) {
|
|
rc = -ENOMEM;
|
|
goto free_dd;
|
|
}
|
|
|
|
bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
|
|
if (!bmp->virt) {
|
|
rc = -ENOMEM;
|
|
goto free_bmp;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&bmp->list);
|
|
|
|
bpl = (struct ulp_bde64 *)bmp->virt;
|
|
request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
|
|
cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
|
|
1, bpl, &request_nseg);
|
|
if (!cmp) {
|
|
rc = -ENOMEM;
|
|
goto free_bmp;
|
|
}
|
|
lpfc_bsg_copy_data(cmp, &job->request_payload,
|
|
job->request_payload.payload_len, 1);
|
|
|
|
bpl += request_nseg;
|
|
reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
|
|
rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
|
|
bpl, &reply_nseg);
|
|
if (!rmp) {
|
|
rc = -ENOMEM;
|
|
goto free_cmp;
|
|
}
|
|
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
|
if (!cmdiocbq) {
|
|
rc = -ENOMEM;
|
|
goto free_rmp;
|
|
}
|
|
|
|
cmd = &cmdiocbq->iocb;
|
|
cmd->un.genreq64.bdl.ulpIoTag32 = 0;
|
|
cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
|
|
cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
|
|
cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
|
|
cmd->un.genreq64.bdl.bdeSize =
|
|
(request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
|
|
cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
|
|
cmd->un.genreq64.w5.hcsw.Dfctl = 0;
|
|
cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD;
|
|
cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */
|
|
cmd->ulpBdeCount = 1;
|
|
cmd->ulpClass = CLASS3;
|
|
cmd->ulpOwner = OWN_CHIP;
|
|
cmd->ulpLe = 1; /* Limited Edition */
|
|
cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
|
|
cmdiocbq->vport = phba->pport;
|
|
/* We want the firmware to timeout before we do */
|
|
cmd->ulpTimeout = MENLO_TIMEOUT - 5;
|
|
cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp;
|
|
cmdiocbq->context1 = dd_data;
|
|
cmdiocbq->context2 = cmp;
|
|
cmdiocbq->context3 = bmp;
|
|
if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) {
|
|
cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
|
|
cmd->ulpPU = MENLO_PU; /* 3 */
|
|
cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */
|
|
cmd->ulpContext = MENLO_CONTEXT; /* 0 */
|
|
} else {
|
|
cmd->ulpCommand = CMD_GEN_REQUEST64_CX;
|
|
cmd->ulpPU = 1;
|
|
cmd->un.ulpWord[4] = 0;
|
|
cmd->ulpContext = menlo_cmd->xri;
|
|
}
|
|
|
|
dd_data->type = TYPE_MENLO;
|
|
dd_data->set_job = job;
|
|
dd_data->context_un.menlo.cmdiocbq = cmdiocbq;
|
|
dd_data->context_un.menlo.rmp = rmp;
|
|
job->dd_data = dd_data;
|
|
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
|
|
MENLO_TIMEOUT - 5);
|
|
if (rc == IOCB_SUCCESS)
|
|
return 0; /* done for now */
|
|
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
|
|
free_rmp:
|
|
lpfc_free_bsg_buffers(phba, rmp);
|
|
free_cmp:
|
|
lpfc_free_bsg_buffers(phba, cmp);
|
|
free_bmp:
|
|
if (bmp->virt)
|
|
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
|
|
kfree(bmp);
|
|
free_dd:
|
|
kfree(dd_data);
|
|
no_dd_data:
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
job->dd_data = NULL;
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
lpfc_forced_link_speed(struct bsg_job *job)
|
|
{
|
|
struct Scsi_Host *shost = fc_bsg_to_shost(job);
|
|
struct lpfc_vport *vport = shost_priv(shost);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct forced_link_speed_support_reply *forced_reply;
|
|
int rc = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) +
|
|
sizeof(struct get_forced_link_speed_support)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"0048 Received FORCED_LINK_SPEED request "
|
|
"below minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
forced_reply = (struct forced_link_speed_support_reply *)
|
|
bsg_reply->reply_data.vendor_reply.vendor_rsp;
|
|
|
|
if (job->reply_len < sizeof(*bsg_reply) + sizeof(*forced_reply)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"0049 Received FORCED_LINK_SPEED reply below "
|
|
"minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
forced_reply->supported = (phba->hba_flag & HBA_FORCED_LINK_SPEED)
|
|
? LPFC_FORCED_LINK_SPEED_SUPPORTED
|
|
: LPFC_FORCED_LINK_SPEED_NOT_SUPPORTED;
|
|
job_error:
|
|
bsg_reply->result = rc;
|
|
if (rc == 0)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_check_fwlog_support: Check FW log support on the adapter
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* Check if FW Logging support by the adapter
|
|
**/
|
|
int
|
|
lpfc_check_fwlog_support(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_ras_fwlog *ras_fwlog = NULL;
|
|
|
|
ras_fwlog = &phba->ras_fwlog;
|
|
|
|
if (!ras_fwlog->ras_hwsupport)
|
|
return -EACCES;
|
|
else if (!ras_fwlog->ras_enabled)
|
|
return -EPERM;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_get_ras_config: Get RAS configuration settings
|
|
* @job: fc_bsg_job to handle
|
|
*
|
|
* Get RAS configuration values set.
|
|
**/
|
|
static int
|
|
lpfc_bsg_get_ras_config(struct bsg_job *job)
|
|
{
|
|
struct Scsi_Host *shost = fc_bsg_to_shost(job);
|
|
struct lpfc_vport *vport = shost_priv(shost);
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_bsg_get_ras_config_reply *ras_reply;
|
|
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
|
|
int rc = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) +
|
|
sizeof(struct lpfc_bsg_ras_req)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"6192 FW_LOG request received "
|
|
"below minimum size\n");
|
|
rc = -EINVAL;
|
|
goto ras_job_error;
|
|
}
|
|
|
|
/* Check FW log status */
|
|
rc = lpfc_check_fwlog_support(phba);
|
|
if (rc)
|
|
goto ras_job_error;
|
|
|
|
ras_reply = (struct lpfc_bsg_get_ras_config_reply *)
|
|
bsg_reply->reply_data.vendor_reply.vendor_rsp;
|
|
|
|
/* Current logging state */
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (ras_fwlog->state == ACTIVE)
|
|
ras_reply->state = LPFC_RASLOG_STATE_RUNNING;
|
|
else
|
|
ras_reply->state = LPFC_RASLOG_STATE_STOPPED;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
ras_reply->log_level = phba->ras_fwlog.fw_loglevel;
|
|
ras_reply->log_buff_sz = phba->cfg_ras_fwlog_buffsize;
|
|
|
|
ras_job_error:
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
|
|
/* complete the job back to userspace */
|
|
if (!rc)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_set_ras_config: Set FW logging parameters
|
|
* @job: fc_bsg_job to handle
|
|
*
|
|
* Set log-level parameters for FW-logging in host memory
|
|
**/
|
|
static int
|
|
lpfc_bsg_set_ras_config(struct bsg_job *job)
|
|
{
|
|
struct Scsi_Host *shost = fc_bsg_to_shost(job);
|
|
struct lpfc_vport *vport = shost_priv(shost);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_bsg_set_ras_config_req *ras_req;
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
uint8_t action = 0, log_level = 0;
|
|
int rc = 0, action_status = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) +
|
|
sizeof(struct lpfc_bsg_set_ras_config_req)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"6182 Received RAS_LOG request "
|
|
"below minimum size\n");
|
|
rc = -EINVAL;
|
|
goto ras_job_error;
|
|
}
|
|
|
|
/* Check FW log status */
|
|
rc = lpfc_check_fwlog_support(phba);
|
|
if (rc)
|
|
goto ras_job_error;
|
|
|
|
ras_req = (struct lpfc_bsg_set_ras_config_req *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
action = ras_req->action;
|
|
log_level = ras_req->log_level;
|
|
|
|
if (action == LPFC_RASACTION_STOP_LOGGING) {
|
|
/* Check if already disabled */
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (ras_fwlog->state != ACTIVE) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
rc = -ESRCH;
|
|
goto ras_job_error;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Disable logging */
|
|
lpfc_ras_stop_fwlog(phba);
|
|
} else {
|
|
/*action = LPFC_RASACTION_START_LOGGING*/
|
|
|
|
/* Even though FW-logging is active re-initialize
|
|
* FW-logging with new log-level. Return status
|
|
* "Logging already Running" to caller.
|
|
**/
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (ras_fwlog->state != INACTIVE)
|
|
action_status = -EINPROGRESS;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Enable logging */
|
|
rc = lpfc_sli4_ras_fwlog_init(phba, log_level,
|
|
LPFC_RAS_ENABLE_LOGGING);
|
|
if (rc) {
|
|
rc = -EINVAL;
|
|
goto ras_job_error;
|
|
}
|
|
|
|
/* Check if FW-logging is re-initialized */
|
|
if (action_status == -EINPROGRESS)
|
|
rc = action_status;
|
|
}
|
|
ras_job_error:
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
|
|
/* complete the job back to userspace */
|
|
if (!rc)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_get_ras_lwpd: Get log write position data
|
|
* @job: fc_bsg_job to handle
|
|
*
|
|
* Get Offset/Wrap count of the log message written
|
|
* in host memory
|
|
**/
|
|
static int
|
|
lpfc_bsg_get_ras_lwpd(struct bsg_job *job)
|
|
{
|
|
struct Scsi_Host *shost = fc_bsg_to_shost(job);
|
|
struct lpfc_vport *vport = shost_priv(shost);
|
|
struct lpfc_bsg_get_ras_lwpd *ras_reply;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
u32 *lwpd_ptr = NULL;
|
|
int rc = 0;
|
|
|
|
rc = lpfc_check_fwlog_support(phba);
|
|
if (rc)
|
|
goto ras_job_error;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) +
|
|
sizeof(struct lpfc_bsg_ras_req)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"6183 Received RAS_LOG request "
|
|
"below minimum size\n");
|
|
rc = -EINVAL;
|
|
goto ras_job_error;
|
|
}
|
|
|
|
ras_reply = (struct lpfc_bsg_get_ras_lwpd *)
|
|
bsg_reply->reply_data.vendor_reply.vendor_rsp;
|
|
|
|
if (!ras_fwlog->lwpd.virt) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"6193 Restart FW Logging\n");
|
|
rc = -EINVAL;
|
|
goto ras_job_error;
|
|
}
|
|
|
|
/* Get lwpd offset */
|
|
lwpd_ptr = (uint32_t *)(ras_fwlog->lwpd.virt);
|
|
ras_reply->offset = be32_to_cpu(*lwpd_ptr & 0xffffffff);
|
|
|
|
/* Get wrap count */
|
|
ras_reply->wrap_count = be32_to_cpu(*(++lwpd_ptr) & 0xffffffff);
|
|
|
|
ras_job_error:
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
|
|
/* complete the job back to userspace */
|
|
if (!rc)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_get_ras_fwlog: Read FW log
|
|
* @job: fc_bsg_job to handle
|
|
*
|
|
* Copy the FW log into the passed buffer.
|
|
**/
|
|
static int
|
|
lpfc_bsg_get_ras_fwlog(struct bsg_job *job)
|
|
{
|
|
struct Scsi_Host *shost = fc_bsg_to_shost(job);
|
|
struct lpfc_vport *vport = shost_priv(shost);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct lpfc_bsg_get_fwlog_req *ras_req;
|
|
u32 rd_offset, rd_index, offset;
|
|
void *src, *fwlog_buff;
|
|
struct lpfc_ras_fwlog *ras_fwlog = NULL;
|
|
struct lpfc_dmabuf *dmabuf, *next;
|
|
int rc = 0;
|
|
|
|
ras_fwlog = &phba->ras_fwlog;
|
|
|
|
rc = lpfc_check_fwlog_support(phba);
|
|
if (rc)
|
|
goto ras_job_error;
|
|
|
|
/* Logging to be stopped before reading */
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (ras_fwlog->state == ACTIVE) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
rc = -EINPROGRESS;
|
|
goto ras_job_error;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) +
|
|
sizeof(struct lpfc_bsg_get_fwlog_req)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"6184 Received RAS_LOG request "
|
|
"below minimum size\n");
|
|
rc = -EINVAL;
|
|
goto ras_job_error;
|
|
}
|
|
|
|
ras_req = (struct lpfc_bsg_get_fwlog_req *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
rd_offset = ras_req->read_offset;
|
|
|
|
/* Allocate memory to read fw log*/
|
|
fwlog_buff = vmalloc(ras_req->read_size);
|
|
if (!fwlog_buff) {
|
|
rc = -ENOMEM;
|
|
goto ras_job_error;
|
|
}
|
|
|
|
rd_index = (rd_offset / LPFC_RAS_MAX_ENTRY_SIZE);
|
|
offset = (rd_offset % LPFC_RAS_MAX_ENTRY_SIZE);
|
|
|
|
list_for_each_entry_safe(dmabuf, next,
|
|
&ras_fwlog->fwlog_buff_list, list) {
|
|
|
|
if (dmabuf->buffer_tag < rd_index)
|
|
continue;
|
|
|
|
src = dmabuf->virt + offset;
|
|
memcpy(fwlog_buff, src, ras_req->read_size);
|
|
break;
|
|
}
|
|
|
|
bsg_reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
fwlog_buff, ras_req->read_size);
|
|
|
|
vfree(fwlog_buff);
|
|
|
|
ras_job_error:
|
|
bsg_reply->result = rc;
|
|
if (!rc)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
lpfc_get_trunk_info(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct lpfc_trunk_info *event_reply;
|
|
int rc = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct get_trunk_info_req)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2744 Received GET TRUNK _INFO request below "
|
|
"minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
event_reply = (struct lpfc_trunk_info *)
|
|
bsg_reply->reply_data.vendor_reply.vendor_rsp;
|
|
|
|
if (job->reply_len < sizeof(*bsg_reply) + sizeof(*event_reply)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2728 Received GET TRUNK _INFO reply below "
|
|
"minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
if (event_reply == NULL) {
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
bsg_bf_set(lpfc_trunk_info_link_status, event_reply,
|
|
(phba->link_state >= LPFC_LINK_UP) ? 1 : 0);
|
|
|
|
bsg_bf_set(lpfc_trunk_info_trunk_active0, event_reply,
|
|
(phba->trunk_link.link0.state == LPFC_LINK_UP) ? 1 : 0);
|
|
|
|
bsg_bf_set(lpfc_trunk_info_trunk_active1, event_reply,
|
|
(phba->trunk_link.link1.state == LPFC_LINK_UP) ? 1 : 0);
|
|
|
|
bsg_bf_set(lpfc_trunk_info_trunk_active2, event_reply,
|
|
(phba->trunk_link.link2.state == LPFC_LINK_UP) ? 1 : 0);
|
|
|
|
bsg_bf_set(lpfc_trunk_info_trunk_active3, event_reply,
|
|
(phba->trunk_link.link3.state == LPFC_LINK_UP) ? 1 : 0);
|
|
|
|
bsg_bf_set(lpfc_trunk_info_trunk_config0, event_reply,
|
|
bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba));
|
|
|
|
bsg_bf_set(lpfc_trunk_info_trunk_config1, event_reply,
|
|
bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba));
|
|
|
|
bsg_bf_set(lpfc_trunk_info_trunk_config2, event_reply,
|
|
bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba));
|
|
|
|
bsg_bf_set(lpfc_trunk_info_trunk_config3, event_reply,
|
|
bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba));
|
|
|
|
event_reply->port_speed = phba->sli4_hba.link_state.speed / 1000;
|
|
event_reply->logical_speed =
|
|
phba->sli4_hba.link_state.logical_speed / 1000;
|
|
job_error:
|
|
bsg_reply->result = rc;
|
|
if (!rc)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return rc;
|
|
|
|
}
|
|
|
|
static int
|
|
lpfc_get_cgnbuf_info(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
struct get_cgnbuf_info_req *cgnbuf_req;
|
|
struct lpfc_cgn_info *cp;
|
|
uint8_t *cgn_buff;
|
|
int size, cinfosz;
|
|
int rc = 0;
|
|
|
|
if (job->request_len < sizeof(struct fc_bsg_request) +
|
|
sizeof(struct get_cgnbuf_info_req)) {
|
|
rc = -ENOMEM;
|
|
goto job_exit;
|
|
}
|
|
|
|
if (!phba->sli4_hba.pc_sli4_params.cmf) {
|
|
rc = -ENOENT;
|
|
goto job_exit;
|
|
}
|
|
|
|
if (!phba->cgn_i || !phba->cgn_i->virt) {
|
|
rc = -ENOENT;
|
|
goto job_exit;
|
|
}
|
|
|
|
cp = phba->cgn_i->virt;
|
|
if (cp->cgn_info_version < LPFC_CGN_INFO_V3) {
|
|
rc = -EPERM;
|
|
goto job_exit;
|
|
}
|
|
|
|
cgnbuf_req = (struct get_cgnbuf_info_req *)
|
|
bsg_request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
/* For reset or size == 0 */
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
|
|
if (cgnbuf_req->reset == LPFC_BSG_CGN_RESET_STAT) {
|
|
lpfc_init_congestion_stat(phba);
|
|
goto job_exit;
|
|
}
|
|
|
|
/* We don't want to include the CRC at the end */
|
|
cinfosz = sizeof(struct lpfc_cgn_info) - sizeof(uint32_t);
|
|
|
|
size = cgnbuf_req->read_size;
|
|
if (!size)
|
|
goto job_exit;
|
|
|
|
if (size < cinfosz) {
|
|
/* Just copy back what we can */
|
|
cinfosz = size;
|
|
rc = -E2BIG;
|
|
}
|
|
|
|
/* Allocate memory to read congestion info */
|
|
cgn_buff = vmalloc(cinfosz);
|
|
if (!cgn_buff) {
|
|
rc = -ENOMEM;
|
|
goto job_exit;
|
|
}
|
|
|
|
memcpy(cgn_buff, cp, cinfosz);
|
|
|
|
bsg_reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
cgn_buff, cinfosz);
|
|
|
|
vfree(cgn_buff);
|
|
|
|
job_exit:
|
|
bsg_reply->result = rc;
|
|
if (!rc)
|
|
bsg_job_done(job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
else
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"2724 GET CGNBUF error: %d\n", rc);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job
|
|
* @job: fc_bsg_job to handle
|
|
**/
|
|
static int
|
|
lpfc_bsg_hst_vendor(struct bsg_job *job)
|
|
{
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struct fc_bsg_request *bsg_request = job->request;
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struct fc_bsg_reply *bsg_reply = job->reply;
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int command = bsg_request->rqst_data.h_vendor.vendor_cmd[0];
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int rc;
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switch (command) {
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case LPFC_BSG_VENDOR_SET_CT_EVENT:
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rc = lpfc_bsg_hba_set_event(job);
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break;
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case LPFC_BSG_VENDOR_GET_CT_EVENT:
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rc = lpfc_bsg_hba_get_event(job);
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break;
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case LPFC_BSG_VENDOR_SEND_MGMT_RESP:
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rc = lpfc_bsg_send_mgmt_rsp(job);
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break;
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case LPFC_BSG_VENDOR_DIAG_MODE:
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rc = lpfc_bsg_diag_loopback_mode(job);
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break;
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case LPFC_BSG_VENDOR_DIAG_MODE_END:
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rc = lpfc_sli4_bsg_diag_mode_end(job);
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break;
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case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK:
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rc = lpfc_bsg_diag_loopback_run(job);
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break;
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case LPFC_BSG_VENDOR_LINK_DIAG_TEST:
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rc = lpfc_sli4_bsg_link_diag_test(job);
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break;
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case LPFC_BSG_VENDOR_GET_MGMT_REV:
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rc = lpfc_bsg_get_dfc_rev(job);
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break;
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case LPFC_BSG_VENDOR_MBOX:
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rc = lpfc_bsg_mbox_cmd(job);
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break;
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case LPFC_BSG_VENDOR_MENLO_CMD:
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case LPFC_BSG_VENDOR_MENLO_DATA:
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rc = lpfc_menlo_cmd(job);
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break;
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case LPFC_BSG_VENDOR_FORCED_LINK_SPEED:
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rc = lpfc_forced_link_speed(job);
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|
break;
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|
case LPFC_BSG_VENDOR_RAS_GET_LWPD:
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|
rc = lpfc_bsg_get_ras_lwpd(job);
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|
break;
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|
case LPFC_BSG_VENDOR_RAS_GET_FWLOG:
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|
rc = lpfc_bsg_get_ras_fwlog(job);
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|
break;
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|
case LPFC_BSG_VENDOR_RAS_GET_CONFIG:
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|
rc = lpfc_bsg_get_ras_config(job);
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|
break;
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|
case LPFC_BSG_VENDOR_RAS_SET_CONFIG:
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|
rc = lpfc_bsg_set_ras_config(job);
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|
break;
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|
case LPFC_BSG_VENDOR_GET_TRUNK_INFO:
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|
rc = lpfc_get_trunk_info(job);
|
|
break;
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|
case LPFC_BSG_VENDOR_GET_CGNBUF_INFO:
|
|
rc = lpfc_get_cgnbuf_info(job);
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|
break;
|
|
default:
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|
rc = -EINVAL;
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|
bsg_reply->reply_payload_rcv_len = 0;
|
|
/* make error code available to userspace */
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|
bsg_reply->result = rc;
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_request - handle a bsg request from the FC transport
|
|
* @job: bsg_job to handle
|
|
**/
|
|
int
|
|
lpfc_bsg_request(struct bsg_job *job)
|
|
{
|
|
struct fc_bsg_request *bsg_request = job->request;
|
|
struct fc_bsg_reply *bsg_reply = job->reply;
|
|
uint32_t msgcode;
|
|
int rc;
|
|
|
|
msgcode = bsg_request->msgcode;
|
|
switch (msgcode) {
|
|
case FC_BSG_HST_VENDOR:
|
|
rc = lpfc_bsg_hst_vendor(job);
|
|
break;
|
|
case FC_BSG_RPT_ELS:
|
|
rc = lpfc_bsg_rport_els(job);
|
|
break;
|
|
case FC_BSG_RPT_CT:
|
|
rc = lpfc_bsg_send_mgmt_cmd(job);
|
|
break;
|
|
default:
|
|
rc = -EINVAL;
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
/* make error code available to userspace */
|
|
bsg_reply->result = rc;
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport
|
|
* @job: bsg_job that has timed out
|
|
*
|
|
* This function just aborts the job's IOCB. The aborted IOCB will return to
|
|
* the waiting function which will handle passing the error back to userspace
|
|
**/
|
|
int
|
|
lpfc_bsg_timeout(struct bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *cmdiocb;
|
|
struct lpfc_sli_ring *pring;
|
|
struct bsg_job_data *dd_data;
|
|
unsigned long flags;
|
|
int rc = 0;
|
|
LIST_HEAD(completions);
|
|
struct lpfc_iocbq *check_iocb, *next_iocb;
|
|
|
|
pring = lpfc_phba_elsring(phba);
|
|
if (unlikely(!pring))
|
|
return -EIO;
|
|
|
|
/* if job's driver data is NULL, the command completed or is in the
|
|
* the process of completing. In this case, return status to request
|
|
* so the timeout is retried. This avoids double completion issues
|
|
* and the request will be pulled off the timer queue when the
|
|
* command's completion handler executes. Otherwise, prevent the
|
|
* command's completion handler from executing the job done callback
|
|
* and continue processing to abort the outstanding the command.
|
|
*/
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
dd_data = (struct bsg_job_data *)job->dd_data;
|
|
if (dd_data) {
|
|
dd_data->set_job = NULL;
|
|
job->dd_data = NULL;
|
|
} else {
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
switch (dd_data->type) {
|
|
case TYPE_IOCB:
|
|
/* Check to see if IOCB was issued to the port or not. If not,
|
|
* remove it from the txq queue and call cancel iocbs.
|
|
* Otherwise, call abort iotag
|
|
*/
|
|
cmdiocb = dd_data->context_un.iocb.cmdiocbq;
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
/* make sure the I/O abort window is still open */
|
|
if (!(cmdiocb->iocb_flag & LPFC_IO_CMD_OUTSTANDING)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
return -EAGAIN;
|
|
}
|
|
list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
|
|
list) {
|
|
if (check_iocb == cmdiocb) {
|
|
list_move_tail(&check_iocb->list, &completions);
|
|
break;
|
|
}
|
|
}
|
|
if (list_empty(&completions))
|
|
lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb, NULL);
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
if (!list_empty(&completions)) {
|
|
lpfc_sli_cancel_iocbs(phba, &completions,
|
|
IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_ABORTED);
|
|
}
|
|
break;
|
|
|
|
case TYPE_EVT:
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
break;
|
|
|
|
case TYPE_MBOX:
|
|
/* Update the ext buf ctx state if needed */
|
|
|
|
if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
|
|
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
break;
|
|
case TYPE_MENLO:
|
|
/* Check to see if IOCB was issued to the port or not. If not,
|
|
* remove it from the txq queue and call cancel iocbs.
|
|
* Otherwise, call abort iotag.
|
|
*/
|
|
cmdiocb = dd_data->context_un.menlo.cmdiocbq;
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
|
|
list) {
|
|
if (check_iocb == cmdiocb) {
|
|
list_move_tail(&check_iocb->list, &completions);
|
|
break;
|
|
}
|
|
}
|
|
if (list_empty(&completions))
|
|
lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb, NULL);
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
if (!list_empty(&completions)) {
|
|
lpfc_sli_cancel_iocbs(phba, &completions,
|
|
IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_ABORTED);
|
|
}
|
|
break;
|
|
default:
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
break;
|
|
}
|
|
|
|
/* scsi transport fc fc_bsg_job_timeout expects a zero return code,
|
|
* otherwise an error message will be displayed on the console
|
|
* so always return success (zero)
|
|
*/
|
|
return rc;
|
|
}
|