Commit 4fede78f authored by James Smart's avatar James Smart Committed by James Bottomley
Browse files

[SCSI] lpfc 8.3.8: (BSG1) Update BSG infrastructure 



Update BSG infrastructure to handle new vendor specific BSG commands.

Signed-off-by: default avatarJames Smart <james.smart@emulex.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 65467b6b

drivers/scsi/lpfc/lpfc.h

+4 −2
Original line number Diff line number Diff line 
/*******************************************************************

 * This file is part of the Emulex Linux Device Driver for         *

 * Fibre Channel Host Bus Adapters.                                *

 * Copyright (C) 2004-2009 Emulex.  All rights reserved.           *

 * Copyright (C) 2004-2010 Emulex.  All rights reserved.           *

 * EMULEX and SLI are trademarks of Emulex.                        *

 * www.emulex.com                                                  *

 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
@@ -451,6 +451,8 @@ struct unsol_rcv_ct_ctx { 
	uint32_t ctxt_id;

	uint32_t SID;

	uint32_t oxid;

	uint32_t flags;

#define UNSOL_VALID	0x00000001

};



struct lpfc_hba {
@@ -793,7 +795,7 @@ struct lpfc_hba { 
	uint16_t vlan_id;

	struct list_head fcf_conn_rec_list;



	struct mutex ct_event_mutex; /* synchronize access to ct_ev_waiters */

	spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */

	struct list_head ct_ev_waiters;

	struct unsol_rcv_ct_ctx ct_ctx[64];

	uint32_t ctx_idx;

drivers/scsi/lpfc/lpfc_bsg.c

+29 −23
Original line number Diff line number Diff line 
/*******************************************************************

 * This file is part of the Emulex Linux Device Driver for         *

 * Fibre Channel Host Bus Adapters.                                *

 * Copyright (C) 2009 Emulex.  All rights reserved.                *

 * Copyright (C) 2009-2010 Emulex.  All rights reserved.                *

 * EMULEX and SLI are trademarks of Emulex.                        *

 * www.emulex.com                                                  *

 *                                                                 *
@@ -33,6 +33,7 @@ 
#include "lpfc_sli.h"

#include "lpfc_sli4.h"

#include "lpfc_nl.h"

#include "lpfc_bsg.h"

#include "lpfc_disc.h"

#include "lpfc_scsi.h"

#include "lpfc.h"
@@ -476,7 +477,7 @@ enum ELX_LOOPBACK_CMD { 
 * This function is called when an unsolicited CT command is received.  It

 * forwards the event to any processes registerd to receive CT events.

 */

void

int

lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,

			struct lpfc_iocbq *piocbq)

{
@@ -496,6 +497,7 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 
	struct lpfc_dmabuf *bdeBuf2 = piocbq->context3;

	struct lpfc_hbq_entry *hbqe;

	struct lpfc_sli_ct_request *ct_req;

	unsigned long flags;



	INIT_LIST_HEAD(&head);

	list_add_tail(&head, &piocbq->list);
@@ -519,7 +521,7 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 
	if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))

		lpfc_sli_ringpostbuf_put(phba, pring, dmabuf);



	mutex_lock(&phba->ct_event_mutex);

	spin_lock_irqsave(&phba->ct_ev_lock, flags);

	list_for_each_entry(evt, &phba->ct_ev_waiters, node) {

		if (evt->req_id != evt_req_id)

			continue;
@@ -535,7 +537,7 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 
			break;

		}



		mutex_unlock(&phba->ct_event_mutex);

		spin_unlock_irqrestore(&phba->ct_ev_lock, flags);



		if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {

			/* take accumulated byte count from the last iocbq */
@@ -556,9 +558,9 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 
					"CT event data, size %d\n",

					evt_dat->len);

			kfree(evt_dat);

			mutex_lock(&phba->ct_event_mutex);

			spin_lock_irqsave(&phba->ct_ev_lock, flags);

			lpfc_ct_event_unref(evt);

			mutex_unlock(&phba->ct_event_mutex);

			spin_unlock_irqrestore(&phba->ct_ev_lock, flags);

			goto error_ct_unsol_exit;

		}
@@ -601,9 +603,11 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 
						iocbq);

					kfree(evt_dat->data);

					kfree(evt_dat);

					mutex_lock(&phba->ct_event_mutex);

					spin_lock_irqsave(&phba->ct_ev_lock,

						flags);

					lpfc_ct_event_unref(evt);

					mutex_unlock(&phba->ct_event_mutex);

					spin_unlock_irqrestore(

						&phba->ct_ev_lock, flags);

					goto error_ct_unsol_exit;

				}

				memcpy((char *)(evt_dat->data) + offset,
@@ -638,7 +642,7 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 
			}

		}



		mutex_lock(&phba->ct_event_mutex);

		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) % 64;
@@ -656,13 +660,13 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 
		if (evt_req_id == SLI_CT_ELX_LOOPBACK)

			break;

	}

	mutex_unlock(&phba->ct_event_mutex);

	spin_unlock_irqrestore(&phba->ct_ev_lock, flags);



error_ct_unsol_exit:

	if (!list_empty(&head))

		list_del(&head);



	return;

	return 1;

}



/**
@@ -676,6 +680,7 @@ lpfc_bsg_set_event(struct fc_bsg_job *job) 
	struct lpfc_hba *phba = vport->phba;

	struct set_ct_event *event_req;

	struct lpfc_ct_event *evt;

	unsigned long flags;

	int rc = 0;



	if (job->request_len <
@@ -689,7 +694,7 @@ lpfc_bsg_set_event(struct fc_bsg_job *job) 
	event_req = (struct set_ct_event *)

		job->request->rqst_data.h_vendor.vendor_cmd;



	mutex_lock(&phba->ct_event_mutex);

	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_ct_event_ref(evt);
@@ -697,7 +702,7 @@ lpfc_bsg_set_event(struct fc_bsg_job *job) 
			break;

		}

	}

	mutex_unlock(&phba->ct_event_mutex);

	spin_unlock_irqrestore(&phba->ct_ev_lock, flags);



	if (&evt->node == &phba->ct_ev_waiters) {

		/* no event waiting struct yet - first call */
@@ -710,19 +715,19 @@ lpfc_bsg_set_event(struct fc_bsg_job *job) 
			return -ENOMEM;

		}



		mutex_lock(&phba->ct_event_mutex);

		spin_lock_irqsave(&phba->ct_ev_lock, flags);

		list_add(&evt->node, &phba->ct_ev_waiters);

		lpfc_ct_event_ref(evt);

		mutex_unlock(&phba->ct_event_mutex);

		spin_unlock_irqrestore(&phba->ct_ev_lock, flags);

	}



	evt->waiting = 1;

	if (wait_event_interruptible(evt->wq,

				     !list_empty(&evt->events_to_see))) {

		mutex_lock(&phba->ct_event_mutex);

		spin_lock_irqsave(&phba->ct_ev_lock, flags);

		lpfc_ct_event_unref(evt); /* release ref */

		lpfc_ct_event_unref(evt); /* delete */

		mutex_unlock(&phba->ct_event_mutex);

		spin_unlock_irqrestore(&phba->ct_ev_lock, flags);

		rc = -EINTR;

		goto set_event_out;

	}
@@ -730,10 +735,10 @@ lpfc_bsg_set_event(struct fc_bsg_job *job) 
	evt->wait_time_stamp = jiffies;

	evt->waiting = 0;



	mutex_lock(&phba->ct_event_mutex);

	spin_lock_irqsave(&phba->ct_ev_lock, flags);

	list_move(evt->events_to_see.prev, &evt->events_to_get);

	lpfc_ct_event_unref(evt); /* release ref */

	mutex_unlock(&phba->ct_event_mutex);

	spin_unlock_irqrestore(&phba->ct_ev_lock, flags);



set_event_out:

	/* set_event carries no reply payload */
@@ -759,6 +764,7 @@ lpfc_bsg_get_event(struct fc_bsg_job *job) 
	struct get_ct_event_reply *event_reply;

	struct lpfc_ct_event *evt;

	struct event_data *evt_dat = NULL;

	unsigned long flags;

	int rc = 0;



	if (job->request_len <
@@ -775,7 +781,7 @@ lpfc_bsg_get_event(struct fc_bsg_job *job) 
	event_reply = (struct get_ct_event_reply *)

		job->reply->reply_data.vendor_reply.vendor_rsp;



	mutex_lock(&phba->ct_event_mutex);

	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) {

			if (list_empty(&evt->events_to_get))
@@ -788,7 +794,7 @@ lpfc_bsg_get_event(struct fc_bsg_job *job) 
			break;

		}

	}

	mutex_unlock(&phba->ct_event_mutex);

	spin_unlock_irqrestore(&phba->ct_ev_lock, flags);



	if (!evt_dat) {

		job->reply->reply_payload_rcv_len = 0;
@@ -818,9 +824,9 @@ lpfc_bsg_get_event(struct fc_bsg_job *job) 
	if (evt_dat)

		kfree(evt_dat->data);

	kfree(evt_dat);

	mutex_lock(&phba->ct_event_mutex);

	spin_lock_irqsave(&phba->ct_ev_lock, flags);

	lpfc_ct_event_unref(evt);

	mutex_unlock(&phba->ct_event_mutex);

	spin_unlock_irqrestore(&phba->ct_ev_lock, flags);



error_get_event_exit:

	/* make error code available to userspace */

drivers/scsi/lpfc/lpfc_crtn.h

+2 −2
Original line number Diff line number Diff line 
/*******************************************************************

 * This file is part of the Emulex Linux Device Driver for         *

 * Fibre Channel Host Bus Adapters.                                *

 * Copyright (C) 2004-2008 Emulex.  All rights reserved.           *

 * Copyright (C) 2004-2010 Emulex.  All rights reserved.           *

 * EMULEX and SLI are trademarks of Emulex.                        *

 * www.emulex.com                                                  *

 *                                                                 *
@@ -383,5 +383,5 @@ struct lpfc_vport *lpfc_find_vport_by_vpid(struct lpfc_hba *, uint16_t); 
/* functions to support SGIOv4/bsg interface */

int lpfc_bsg_request(struct fc_bsg_job *);

int lpfc_bsg_timeout(struct fc_bsg_job *);

void lpfc_bsg_ct_unsol_event(struct lpfc_hba *, struct lpfc_sli_ring *,

int lpfc_bsg_ct_unsol_event(struct lpfc_hba *, struct lpfc_sli_ring *,

			     struct lpfc_iocbq *);

drivers/scsi/lpfc/lpfc_ct.c

+5 −3
Original line number Diff line number Diff line 
/*******************************************************************

 * This file is part of the Emulex Linux Device Driver for         *

 * Fibre Channel Host Bus Adapters.                                *

 * Copyright (C) 2004-2009 Emulex.  All rights reserved.           *

 * Copyright (C) 2004-2010 Emulex.  All rights reserved.           *

 * EMULEX and SLI are trademarks of Emulex.                        *

 * www.emulex.com                                                  *

 *                                                                 *
@@ -97,7 +97,8 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 
	struct list_head head;

	struct lpfc_dmabuf *bdeBuf;



	lpfc_bsg_ct_unsol_event(phba, pring, piocbq);

	if (lpfc_bsg_ct_unsol_event(phba, pring, piocbq) == 0)

		return;



	if (unlikely(icmd->ulpStatus == IOSTAT_NEED_BUFFER)) {

		lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
@@ -181,7 +182,8 @@ lpfc_sli4_ct_abort_unsol_event(struct lpfc_hba *phba, 
	uint32_t size;



	/* Forward abort event to any process registered to receive ct event */

	lpfc_bsg_ct_unsol_event(phba, pring, piocbq);

	if (lpfc_bsg_ct_unsol_event(phba, pring, piocbq) == 0)

		return;



	/* If there is no BDE associated with IOCB, there is nothing to do */

	if (icmd->ulpBdeCount == 0)

drivers/scsi/lpfc/lpfc_hw.h

+4 −1
Original line number Diff line number Diff line 
/*******************************************************************

 * This file is part of the Emulex Linux Device Driver for         *

 * Fibre Channel Host Bus Adapters.                                *

 * Copyright (C) 2004-2009 Emulex.  All rights reserved.           *

 * Copyright (C) 2004-2010 Emulex.  All rights reserved.           *

 * EMULEX and SLI are trademarks of Emulex.                        *

 * www.emulex.com                                                  *

 *                                                                 *
@@ -1346,6 +1346,9 @@ typedef struct { /* FireFly BIU registers */ 
#define MBX_HEARTBEAT       0x31

#define MBX_WRITE_VPARMS    0x32

#define MBX_ASYNCEVT_ENABLE 0x33

#define MBX_READ_EVENT_LOG_STATUS 0x37

#define MBX_READ_EVENT_LOG  0x38

#define MBX_WRITE_EVENT_LOG 0x39



#define MBX_PORT_CAPABILITIES 0x3B

#define MBX_PORT_IOV_CONTROL 0x3C