Commit ca2f938e authored by Michael Reed's avatar Michael Reed Committed by James Bottomley
Browse files

[SCSI] mptfc: set fibre channel fw target missing timers to one second 



The fibre channel firmware provides a timer which is similar in purpose
to the fibre channel transport's device loss timer.  The effect of this
timer is to extend the total time that a target will be missing beyond
the value associated with the transport's timer.  This patch changes
the firmware timer to a default of one second which significantly reduces
the lag between when a target goes missing and the notification of the
fibre channel transport.

Signed-off-by: default avatarMichael Reed <mdr@sgi.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 80d3ac77

drivers/message/fusion/mptbase.h

+10 −0
Original line number Diff line number Diff line
@@ -487,6 +487,15 @@ typedef struct _RaidCfgData { 
	int		 isRaid;		/* bit field, 1 if RAID */

}RaidCfgData;



typedef struct _FcCfgData {

	/* will ultimately hold fc_port_page0 also */

	struct {

		FCPortPage1_t	*data;

		dma_addr_t	 dma;

		int		 pg_sz;

	}			 fc_port_page1[2];

} FcCfgData;



#define MPT_RPORT_INFO_FLAGS_REGISTERED	0x01	/* rport registered */

#define MPT_RPORT_INFO_FLAGS_MISSING	0x02	/* missing from DevPage0 scan */
@@ -565,6 +574,7 @@ typedef struct _MPT_ADAPTER 
	SpiCfgData		spi_data;	/* Scsi config. data */

	RaidCfgData		raid_data;	/* Raid config. data */

	SasCfgData		sas_data;	/* Sas config. data */

	FcCfgData		fc_data;	/* Fc config. data */

	MPT_IOCTL		*ioctl;		/* ioctl data pointer */

	struct proc_dir_entry	*ioc_dentry;

	struct _MPT_ADAPTER	*alt_ioc;	/* ptr to 929 bound adapter port */

drivers/message/fusion/mptfc.c

+162 −9
Original line number Diff line number Diff line
@@ -169,13 +169,6 @@ static struct fc_function_template mptfc_transport_functions = { 


};



/* FIXME! values controlling firmware RESCAN event

 * need to be set low to allow dev_loss_tmo to

 * work as expected.  Currently, firmware doesn't

 * notify driver of RESCAN event until some number

 * of seconds elapse.  This value can be set via

 * lsiutil.

 */

static void

mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)

{
@@ -700,6 +693,153 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 
	return rc;

}



static int

mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)

{

	ConfigPageHeader_t	 hdr;

	CONFIGPARMS		 cfg;

	int			 rc;



	if (portnum > 1)

		return -EINVAL;



	if (!(ioc->fc_data.fc_port_page1[portnum].data))

		return -EINVAL;



	/* get fcport page 1 header */

	hdr.PageVersion = 0;

	hdr.PageLength = 0;

	hdr.PageNumber = 1;

	hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;

	cfg.cfghdr.hdr = &hdr;

	cfg.physAddr = -1;

	cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;

	cfg.dir = 0;

	cfg.pageAddr = portnum;

	cfg.timeout = 0;



	if ((rc = mpt_config(ioc, &cfg)) != 0)

		return rc;



	if (hdr.PageLength == 0)

		return -ENODEV;



	if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)

		return -EINVAL;



	cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;

	cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;

	cfg.dir = 1;



	rc = mpt_config(ioc, &cfg);



	return rc;

}



static int

mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)

{

	ConfigPageHeader_t	 hdr;

	CONFIGPARMS		 cfg;

	FCPortPage1_t		*page1_alloc;

	dma_addr_t		 page1_dma;

	int			 data_sz;

	int			 rc;



	if (portnum > 1)

		return -EINVAL;



	/* get fcport page 1 header */

	hdr.PageVersion = 0;

	hdr.PageLength = 0;

	hdr.PageNumber = 1;

	hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;

	cfg.cfghdr.hdr = &hdr;

	cfg.physAddr = -1;

	cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;

	cfg.dir = 0;

	cfg.pageAddr = portnum;

	cfg.timeout = 0;



	if ((rc = mpt_config(ioc, &cfg)) != 0)

		return rc;



	if (hdr.PageLength == 0)

		return -ENODEV;



start_over:



	if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {

		data_sz = hdr.PageLength * 4;

		if (data_sz < sizeof(FCPortPage1_t))

			data_sz = sizeof(FCPortPage1_t);



		page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,

						data_sz,

						&page1_dma);

		if (!page1_alloc)

			return -ENOMEM;

	}

	else {

		page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;

		page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;

		data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;

		if (hdr.PageLength * 4 > data_sz) {

			ioc->fc_data.fc_port_page1[portnum].data = NULL;

			pci_free_consistent(ioc->pcidev, data_sz, (u8 *)

				page1_alloc, page1_dma);

			goto start_over;

		}

	}



	memset(page1_alloc,0,data_sz);



	cfg.physAddr = page1_dma;

	cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;



	if ((rc = mpt_config(ioc, &cfg)) == 0) {

		ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;

		ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;

		ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;

	}

	else {

		ioc->fc_data.fc_port_page1[portnum].data = NULL;

		pci_free_consistent(ioc->pcidev, data_sz, (u8 *)

			page1_alloc, page1_dma);

	}



	return rc;

}



static void

mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)

{

	int		ii;

	FCPortPage1_t	*pp1;



	#define MPTFC_FW_DEVICE_TIMEOUT	(1)

	#define MPTFC_FW_IO_PEND_TIMEOUT (1)

	#define ON_FLAGS  (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)

	#define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)



	for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {

		if (mptfc_GetFcPortPage1(ioc, ii) != 0)

			continue;

		pp1 = ioc->fc_data.fc_port_page1[ii].data;

		if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)

		 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)

		 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS)

		 && ((pp1->Flags & OFF_FLAGS) == 0))

			continue;

		pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;

		pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;

		pp1->Flags &= ~OFF_FLAGS;

		pp1->Flags |= ON_FLAGS;

		mptfc_WriteFcPortPage1(ioc, ii);

	}

}





static void

mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)

{
@@ -1000,6 +1140,7 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 
	for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {

		(void) mptfc_GetFcPortPage0(ioc, ii);

	}

	mptfc_SetFcPortPage1_defaults(ioc);



	/*

	 * scan for rports -
@@ -1086,6 +1227,7 @@ mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 
	}



	else {	/* MPT_IOC_POST_RESET */

		mptfc_SetFcPortPage1_defaults(ioc);

		spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);

		if (ioc->fc_rescan_work_q) {

			if (ioc->fc_rescan_work_count++ == 0) {
@@ -1112,8 +1254,8 @@ mptfc_init(void) 


	show_mptmod_ver(my_NAME, my_VERSION);



	/* sanity check module parameter */

	if (mptfc_dev_loss_tmo == 0)

	/* sanity check module parameters */

	if (mptfc_dev_loss_tmo <= 0)

		mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;



	mptfc_transport_template =
@@ -1156,6 +1298,7 @@ mptfc_remove(struct pci_dev *pdev) 
	struct mptfc_rport_info	*p, *n;

	struct workqueue_struct *work_q;

	unsigned long		flags;

	int			ii;



	/* destroy workqueue */

	if ((work_q=ioc->fc_rescan_work_q)) {
@@ -1172,6 +1315,16 @@ mptfc_remove(struct pci_dev *pdev) 
		kfree(p);

	}



	for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {

		if (ioc->fc_data.fc_port_page1[ii].data) {

			pci_free_consistent(ioc->pcidev,

				ioc->fc_data.fc_port_page1[ii].pg_sz,

				(u8 *) ioc->fc_data.fc_port_page1[ii].data,

				ioc->fc_data.fc_port_page1[ii].dma);

			ioc->fc_data.fc_port_page1[ii].data = NULL;

		}

	}



	mptscsih_remove(pdev);

}

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