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[SCSI] fusion - move SPI API over to mptspi.c
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Move some functions that only apply to the mptspi module over from mptscsih.c

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Eric Moore authored and James Bottomley committed Feb 3, 2007
1 parent 793955f commit 5a9c47b
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Showing 2 changed files with 267 additions and 285 deletions.
284 changes: 0 additions & 284 deletions drivers/message/fusion/mptscsih.c
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Original file line number Diff line number Diff line change
Expand Up @@ -99,9 +99,6 @@ static int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);

static void mptscsih_initTarget(MPT_SCSI_HOST *hd, VirtTarget *vtarget, struct scsi_device *sdev);
static void mptscsih_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtTarget *vtarget, struct scsi_device *sdev);
static int mptscsih_writeIOCPage4(MPT_SCSI_HOST *hd, int channel, int id);
int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
static void mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
Expand Down Expand Up @@ -2286,7 +2283,6 @@ mptscsih_slave_configure(struct scsi_device *sdev)
}

vdevice->configured_lun = 1;
mptscsih_initTarget(hd, vtarget, sdev);
mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);

dsprintk((MYIOC_s_INFO_FMT
Expand Down Expand Up @@ -2548,286 +2544,6 @@ mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
return 1; /* currently means nothing really */
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* mptscsih_initTarget - Target, LUN alloc/free functionality.
* @hd: Pointer to MPT_SCSI_HOST structure
* @vtarget: per target private data
* @sdev: SCSI device
*
* NOTE: It's only SAFE to call this routine if data points to
* sane & valid STANDARD INQUIRY data!
*
* Allocate and initialize memory for this target.
* Save inquiry data.
*
*/
static void
mptscsih_initTarget(MPT_SCSI_HOST *hd, VirtTarget *vtarget,
struct scsi_device *sdev)
{
dinitprintk((MYIOC_s_INFO_FMT "initTarget channel=%d id=%d lun=%d hd=%p\n",
hd->ioc->name, vtarget->channel, vtarget->id,
sdev->lun, hd));

/* Is LUN supported? If so, upper 2 bits will be 0
* in first byte of inquiry data.
*/
if (sdev->inq_periph_qual != 0)
return;

if (vtarget == NULL)
return;

vtarget->type = sdev->type;

if (hd->ioc->bus_type != SPI)
return;

if ((sdev->type == TYPE_PROCESSOR) && (hd->ioc->spi_data.Saf_Te)) {
/* Treat all Processors as SAF-TE if
* command line option is set */
vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
mptscsih_writeIOCPage4(hd, vtarget->channel, vtarget->id);
}else if ((sdev->type == TYPE_PROCESSOR) &&
!(vtarget->tflags & MPT_TARGET_FLAGS_SAF_TE_ISSUED )) {
if (sdev->inquiry_len > 49 ) {
if (sdev->inquiry[44] == 'S' &&
sdev->inquiry[45] == 'A' &&
sdev->inquiry[46] == 'F' &&
sdev->inquiry[47] == '-' &&
sdev->inquiry[48] == 'T' &&
sdev->inquiry[49] == 'E' ) {
vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
mptscsih_writeIOCPage4(hd, vtarget->channel, vtarget->id);
}
}
}
mptscsih_setTargetNegoParms(hd, vtarget, sdev);
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* Update the target negotiation parameters based on the
* the Inquiry data, adapter capabilities, and NVRAM settings.
*
*/
static void
mptscsih_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtTarget *target,
struct scsi_device *sdev)
{
SpiCfgData *pspi_data = &hd->ioc->spi_data;
int id = (int) target->id;
int nvram;
u8 width = MPT_NARROW;
u8 factor = MPT_ASYNC;
u8 offset = 0;
u8 nfactor;
u8 noQas = 1;

target->negoFlags = pspi_data->noQas;

/* noQas == 0 => device supports QAS. */

if (sdev->scsi_level < SCSI_2) {
width = 0;
factor = MPT_ULTRA2;
offset = pspi_data->maxSyncOffset;
target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
} else {
if (scsi_device_wide(sdev)) {
width = 1;
}

if (scsi_device_sync(sdev)) {
factor = pspi_data->minSyncFactor;
if (!scsi_device_dt(sdev))
factor = MPT_ULTRA2;
else {
if (!scsi_device_ius(sdev) &&
!scsi_device_qas(sdev))
factor = MPT_ULTRA160;
else {
factor = MPT_ULTRA320;
if (scsi_device_qas(sdev)) {
ddvtprintk((KERN_INFO "Enabling QAS due to byte56=%02x on id=%d!\n", scsi_device_qas(sdev), id));
noQas = 0;
}
if (sdev->type == TYPE_TAPE &&
scsi_device_ius(sdev))
target->negoFlags |= MPT_TAPE_NEGO_IDP;
}
}
offset = pspi_data->maxSyncOffset;

/* If RAID, never disable QAS
* else if non RAID, do not disable
* QAS if bit 1 is set
* bit 1 QAS support, non-raid only
* bit 0 IU support
*/
if (target->raidVolume == 1) {
noQas = 0;
}
} else {
factor = MPT_ASYNC;
offset = 0;
}
}

if (!sdev->tagged_supported) {
target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
}

/* Update tflags based on NVRAM settings. (SCSI only)
*/
if (pspi_data->nvram && (pspi_data->nvram[id] != MPT_HOST_NVRAM_INVALID)) {
nvram = pspi_data->nvram[id];
nfactor = (nvram & MPT_NVRAM_SYNC_MASK) >> 8;

if (width)
width = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;

if (offset > 0) {
/* Ensure factor is set to the
* maximum of: adapter, nvram, inquiry
*/
if (nfactor) {
if (nfactor < pspi_data->minSyncFactor )
nfactor = pspi_data->minSyncFactor;

factor = max(factor, nfactor);
if (factor == MPT_ASYNC)
offset = 0;
} else {
offset = 0;
factor = MPT_ASYNC;
}
} else {
factor = MPT_ASYNC;
}
}

/* Make sure data is consistent
*/
if ((!width) && (factor < MPT_ULTRA2)) {
factor = MPT_ULTRA2;
}

/* Save the data to the target structure.
*/
target->minSyncFactor = factor;
target->maxOffset = offset;
target->maxWidth = width;

target->tflags |= MPT_TARGET_FLAGS_VALID_NEGO;

/* Disable unused features.
*/
if (!width)
target->negoFlags |= MPT_TARGET_NO_NEGO_WIDE;

if (!offset)
target->negoFlags |= MPT_TARGET_NO_NEGO_SYNC;

if ( factor > MPT_ULTRA320 )
noQas = 0;

if (noQas && (pspi_data->noQas == 0)) {
pspi_data->noQas |= MPT_TARGET_NO_NEGO_QAS;
target->negoFlags |= MPT_TARGET_NO_NEGO_QAS;

/* Disable QAS in a mixed configuration case
*/

ddvtprintk((KERN_INFO "Disabling QAS due to noQas=%02x on id=%d!\n", noQas, id));
}
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* SCSI Config Page functionality ...
*/

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/* mptscsih_writeIOCPage4 - write IOC Page 4
* @hd: Pointer to a SCSI Host Structure
* @channel: write IOC Page4 for this Bus
* @id: write IOC Page4 for this ID
*
* Return: -EAGAIN if unable to obtain a Message Frame
* or 0 if success.
*
* Remark: We do not wait for a return, write pages sequentially.
*/
static int
mptscsih_writeIOCPage4(MPT_SCSI_HOST *hd, int channel, int id)
{
MPT_ADAPTER *ioc = hd->ioc;
Config_t *pReq;
IOCPage4_t *IOCPage4Ptr;
MPT_FRAME_HDR *mf;
dma_addr_t dataDma;
u16 req_idx;
u32 frameOffset;
u32 flagsLength;
int ii;

/* Get a MF for this command.
*/
if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
dfailprintk((MYIOC_s_WARN_FMT "writeIOCPage4 : no msg frames!\n",
ioc->name));
return -EAGAIN;
}

/* Set the request and the data pointers.
* Place data at end of MF.
*/
pReq = (Config_t *)mf;

req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
frameOffset = ioc->req_sz - sizeof(IOCPage4_t);

/* Complete the request frame (same for all requests).
*/
pReq->Action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
pReq->Reserved = 0;
pReq->ChainOffset = 0;
pReq->Function = MPI_FUNCTION_CONFIG;
pReq->ExtPageLength = 0;
pReq->ExtPageType = 0;
pReq->MsgFlags = 0;
for (ii=0; ii < 8; ii++) {
pReq->Reserved2[ii] = 0;
}

IOCPage4Ptr = ioc->spi_data.pIocPg4;
dataDma = ioc->spi_data.IocPg4_dma;
ii = IOCPage4Ptr->ActiveSEP++;
IOCPage4Ptr->SEP[ii].SEPTargetID = id;
IOCPage4Ptr->SEP[ii].SEPBus = channel;
pReq->Header = IOCPage4Ptr->Header;
pReq->PageAddress = cpu_to_le32(id | (channel << 8 ));

/* Add a SGE to the config request.
*/
flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE |
(IOCPage4Ptr->Header.PageLength + ii) * 4;

mpt_add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma);

dinitprintk((MYIOC_s_INFO_FMT
"writeIOCPage4: MaxSEP=%d ActiveSEP=%d channel=%d id=%d \n",
ioc->name, IOCPage4Ptr->MaxSEP, IOCPage4Ptr->ActiveSEP, channel, id));

mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);

return 0;
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* Bus Scan and Domain Validation functionality ...
Expand Down
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