/******************************************************************************* *Copyright (c) 2014 PMC-Sierra, Inc. All rights reserved. * *Redistribution and use in source and binary forms, with or without modification, are permitted provided *that the following conditions are met: *1. Redistributions of source code must retain the above copyright notice, this list of conditions and the *following disclaimer. *2. Redistributions in binary form must reproduce the above copyright notice, *this list of conditions and the following disclaimer in the documentation and/or other materials provided *with the distribution. * *THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED *WARRANTIES,INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS *FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE *FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT *NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR *BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT *LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE ********************************************************************************/ /*****************************************************************************/ /** \file * * The file implementing LL HW encapsulation for SCSI/ATA Translation (SAT). * */ /*****************************************************************************/ #include #include #include #include #include #include #include #include #ifdef SATA_ENABLE #include #include #include #include #ifdef FDS_SM #include #include #include #endif #ifdef FDS_DM #include #include #include #endif #include #include #include #ifdef INITIATOR_DRIVER #include #include #include #endif #ifdef TARGET_DRIVER #include #include #include #endif #include #include #include #include /* * This table is used to map LL Layer saSATAStart() status to TISA status. */ static bit32 mapStat[3] = { tiSuccess, tiError, tiBusy }; /***************************************************************************** *! \brief sataLLIOStart * * This routine is called to initiate a new SATA request to LL layer. * This function implements/encapsulates HW and LL API dependency. * * \param tiRoot: Pointer to TISA initiator driver/port instance. * \param tiIORequest: Pointer to TISA I/O request context for this I/O. * \param tiDeviceHandle: Pointer to TISA device handle for this I/O. * \param tiScsiRequest: Pointer to TISA SCSI I/O request and SGL list. * \param satIOContext_t: Pointer to the SAT IO Context * * \return: * * \e tiSuccess: I/O request successfully initiated. * \e tiBusy: No resources available, try again later. * \e tiIONoDevice: Invalid device handle. * \e tiError: Other errors that prevent the I/O request to be started. * * *****************************************************************************/ GLOBAL bit32 sataLLIOStart ( tiRoot_t *tiRoot, tiIORequest_t *tiIORequest, tiDeviceHandle_t *tiDeviceHandle, tiScsiInitiatorRequest_t *tiScsiRequest, satIOContext_t *satIOContext ) { tdsaDeviceData_t *oneDeviceData; agsaRoot_t *agRoot; agsaIORequest_t *agIORequest; agsaDevHandle_t *agDevHandle; bit32 status; tdIORequestBody_t *tdIORequestBody; agsaSATAInitiatorRequest_t *agSATAReq; satDeviceData_t *pSatDevData; satInternalIo_t *satIntIo; bit32 RLERecovery = agFALSE; oneDeviceData = (tdsaDeviceData_t *)tiDeviceHandle->tdData; agRoot = oneDeviceData->agRoot; agDevHandle = oneDeviceData->agDevHandle; tdIORequestBody = (tdIORequestBody_t *)satIOContext->tiRequestBody; agSATAReq = &(tdIORequestBody->transport.SATA.agSATARequestBody); pSatDevData = satIOContext->pSatDevData; satIntIo = satIOContext->satIntIoContext; /* * If this is a super I/O request, check for optional settings. * Be careful. Use the superRequest pointer for all references * in this block of code. */ agSATAReq->option = 0; if (satIOContext->superIOFlag) { tiSuperScsiInitiatorRequest_t *superRequest = (tiSuperScsiInitiatorRequest_t *) tiScsiRequest; agBOOLEAN needPlusDataLenAdjustment = agFALSE; agBOOLEAN needMinusDataLenAdjustment = agFALSE; bit32 adjusted_length; if (superRequest->flags & TI_SCSI_INITIATOR_ENCRYPT) { /* * Copy all of the relevant encrypt information */ agSATAReq->option |= AGSA_SATA_ENABLE_ENCRYPTION; osti_memcpy(&agSATAReq->encrypt, &superRequest->Encrypt, sizeof(agsaEncrypt_t)); } if (superRequest->flags & TI_SCSI_INITIATOR_DIF) { /* * Copy all of the relevant DIF information */ agSATAReq->option |= AGSA_SATA_ENABLE_DIF; osti_memcpy(&agSATAReq->dif, &superRequest->Dif, sizeof(agsaDif_t)); /* * Set SGL data len * XXX This code needs to support more sector sizes */ if (needPlusDataLenAdjustment == agTRUE) { adjusted_length = superRequest->scsiCmnd.expDataLength; adjusted_length += (adjusted_length/512) * 8; agSATAReq->dataLength = adjusted_length; } else if (needMinusDataLenAdjustment == agTRUE) { adjusted_length = superRequest->scsiCmnd.expDataLength; adjusted_length -= (adjusted_length/520) * 8; agSATAReq->dataLength = adjusted_length; } else { /* setting the data length */ agSATAReq->dataLength = superRequest->scsiCmnd.expDataLength; } tdIORequestBody->IOType.InitiatorRegIO.expDataLength = agSATAReq->dataLength; } else { /* initialize expDataLength */ if (satIOContext->reqType == AGSA_SATA_PROTOCOL_NON_DATA || satIOContext->reqType == AGSA_SATA_PROTOCOL_SRST_ASSERT || satIOContext->reqType == AGSA_SATA_PROTOCOL_SRST_DEASSERT ) { tdIORequestBody->IOType.InitiatorRegIO.expDataLength = 0; } else { tdIORequestBody->IOType.InitiatorRegIO.expDataLength = tiScsiRequest->scsiCmnd.expDataLength; } agSATAReq->dataLength = tdIORequestBody->IOType.InitiatorRegIO.expDataLength; } } else { agSATAReq->option = 0; /* initialize expDataLength */ if (satIOContext->reqType == AGSA_SATA_PROTOCOL_NON_DATA || satIOContext->reqType == AGSA_SATA_PROTOCOL_SRST_ASSERT || satIOContext->reqType == AGSA_SATA_PROTOCOL_SRST_DEASSERT ) { tdIORequestBody->IOType.InitiatorRegIO.expDataLength = 0; } else { tdIORequestBody->IOType.InitiatorRegIO.expDataLength = tiScsiRequest->scsiCmnd.expDataLength; } agSATAReq->dataLength = tdIORequestBody->IOType.InitiatorRegIO.expDataLength; } if ( (pSatDevData->satDriveState == SAT_DEV_STATE_IN_RECOVERY) && (satIOContext->pFis->h.command == SAT_READ_LOG_EXT) ) { RLERecovery = agTRUE; } /* check max io */ /* be sure to free */ if ( (pSatDevData->satDriveState != SAT_DEV_STATE_IN_RECOVERY) || (RLERecovery == agTRUE) ) { if (RLERecovery == agFALSE) /* RLE is not checked against pending IO's */ { if ( (satIOContext->reqType == AGSA_SATA_PROTOCOL_FPDMA_WRITE) || (satIOContext->reqType == AGSA_SATA_PROTOCOL_FPDMA_READ) ) { if (pSatDevData->satPendingNCQIO >= pSatDevData->satNCQMaxIO || pSatDevData->satPendingNONNCQIO != 0) { TI_DBG1(("sataLLIOStart: 1st busy NCQ. NCQ Pending %d NONNCQ Pending %d\n", pSatDevData->satPendingNCQIO, pSatDevData->satPendingNONNCQIO)); /* free resource */ satFreeIntIoResource( tiRoot, pSatDevData, satIntIo); return tiBusy; } } else { if (pSatDevData->satPendingNONNCQIO >= SAT_NONNCQ_MAX || pSatDevData->satPendingNCQIO != 0) { TI_DBG1(("sataLLIOStart: 2nd busy NON-NCQ. NCQ Pending %d NON-NCQ Pending %d\n", pSatDevData->satPendingNCQIO, pSatDevData->satPendingNONNCQIO)); /* free resource */ satFreeIntIoResource( tiRoot, pSatDevData, satIntIo); return tiBusy; } } } /* RLE */ /* for internal SATA command only */ if (satIOContext->satOrgIOContext != agNULL) { /* Initialize tiIORequest */ tdIORequestBody->tiIORequest = tiIORequest; } /* Initialize tiDevhandle */ tdIORequestBody->tiDevHandle = tiDeviceHandle; /* Initializes Scatter Gather and ESGL */ status = itdsataIOPrepareSGL( tiRoot, tdIORequestBody, &tiScsiRequest->agSgl1, tiScsiRequest->sglVirtualAddr ); if (status != tiSuccess) { TI_DBG1(("sataLLIOStart: can't get SGL\n")); return status; } /* Initialize LL Layer agIORequest */ agIORequest = &(tdIORequestBody->agIORequest); agIORequest->osData = (void *) tdIORequestBody; agIORequest->sdkData = agNULL; /* SA takes care of this */ tdIORequestBody->ioStarted = agTRUE; tdIORequestBody->ioCompleted = agFALSE; /* #ifdef PRE_SALL_v033 GLOBAL bit32 saSATAStart( agsaRoot_t *agRoot, agsaIORequest_t *agIORequest, agsaDevHandle_t *agDevHandle, bit32 agRequestType, agsaSATAInitiatorRequest_t *agSATAReq, bit8 *agTag ); #endif GLOBAL bit32 saSATAStart( agsaRoot_t *agRoot, agsaIORequest_t *agIORequest, agsaDevHandle_t *agDevHandle, bit32 agRequestType, agsaSATAInitiatorRequest_t *agSATAReq, bit8 agTag, ossaSATACompletedCB_t agCB ); */ /* assign tag value for SATA */ if ( (satIOContext->reqType == AGSA_SATA_PROTOCOL_FPDMA_WRITE) || (satIOContext->reqType == AGSA_SATA_PROTOCOL_FPDMA_READ) ) { if (agFALSE == satTagAlloc(tiRoot, pSatDevData, &satIOContext->sataTag)) { TI_DBG1(("sataLLIOStart: No more NCQ tag\n")); tdIORequestBody->ioStarted = agFALSE; tdIORequestBody->ioCompleted = agTRUE; return tiBusy; } TI_DBG3(("sataLLIOStart: ncq tag 0x%x\n",satIOContext->sataTag)); } else { satIOContext->sataTag = 0xFF; } } else /* AGSA_SATA_PROTOCOL_SRST_ASSERT or AGSA_SATA_PROTOCOL_SRST_DEASSERT or SAT_CHECK_POWER_MODE as ABORT */ { agsaSgl_t *agSgl; /* for internal SATA command only */ if (satIOContext->satOrgIOContext != agNULL) { /* Initialize tiIORequest */ tdIORequestBody->tiIORequest = tiIORequest; } /* Initialize tiDevhandle */ tdIORequestBody->tiDevHandle = tiDeviceHandle; tdIORequestBody->IOType.InitiatorRegIO.expDataLength = 0; /* SGL for SATA request */ agSgl = &(tdIORequestBody->transport.SATA.agSATARequestBody.agSgl); agSgl->len = 0; agSgl->sgUpper = 0; agSgl->sgLower = 0; agSgl->len = 0; CLEAR_ESGL_EXTEND(agSgl->extReserved); /* Initialize LL Layer agIORequest */ agIORequest = &(tdIORequestBody->agIORequest); agIORequest->osData = (void *) tdIORequestBody; agIORequest->sdkData = agNULL; /* SA takes care of this */ tdIORequestBody->ioStarted = agTRUE; tdIORequestBody->ioCompleted = agFALSE; /* setting the data length */ agSATAReq->dataLength = 0; } tdIORequestBody->reTries = 0; osti_memset(agSATAReq->scsiCDB, 0, 16); osti_memcpy(agSATAReq->scsiCDB, tiScsiRequest->scsiCmnd.cdb, 16); #ifdef TD_INTERNAL_DEBUG tdhexdump("sataLLIOStart", (bit8 *)satIOContext->pFis, sizeof(agsaFisRegHostToDevice_t)); tdhexdump("sataLLIOStart LL", (bit8 *)&agSATAReq->fis.fisRegHostToDev, sizeof(agsaFisRegHostToDevice_t)); #endif TI_DBG6(("sataLLIOStart: agDevHandle %p\n", agDevHandle)); status = saSATAStart( agRoot, agIORequest, tdsaRotateQnumber(tiRoot, oneDeviceData), agDevHandle, satIOContext->reqType, agSATAReq, satIOContext->sataTag, ossaSATACompleted ); if (status == AGSA_RC_SUCCESS) { tdsaSingleThreadedEnter(tiRoot, TD_SATA_LOCK); oneDeviceData->satDevData.satPendingIO++; if ( (satIOContext->reqType == AGSA_SATA_PROTOCOL_FPDMA_WRITE) || (satIOContext->reqType == AGSA_SATA_PROTOCOL_FPDMA_READ) ) { oneDeviceData->satDevData.satPendingNCQIO++; } else { oneDeviceData->satDevData.satPendingNONNCQIO++; } TDLIST_INIT_ELEMENT (&satIOContext->satIoContextLink); TDLIST_ENQUEUE_AT_TAIL (&satIOContext->satIoContextLink, &oneDeviceData->satDevData.satIoLinkList); tdsaSingleThreadedLeave(tiRoot, TD_SATA_LOCK); // TI_DBG5(("sataLLIOStart: device %p pending IO %d\n", oneDeviceData->satDevData,oneDeviceData->satDevData.satPendingIO)); } else { if (status == AGSA_RC_BUSY) { TI_DBG1(("sataLLIOStart: saSATAStart busy\n")); } else { TI_DBG1(("sataLLIOStart: saSATAStart failed\n")); } if ( (satIOContext->reqType == AGSA_SATA_PROTOCOL_FPDMA_WRITE) || (satIOContext->reqType == AGSA_SATA_PROTOCOL_FPDMA_READ) ) { satTagRelease(tiRoot, pSatDevData, satIOContext->sataTag); } /* Free the ESGL pages associated with this I/O */ tdIORequestBody->ioStarted = agFALSE; tdIORequestBody->ioCompleted = agTRUE; /* * Map the SAS/SATA LL layer status to the TISA status */ status = mapStat[status]; return (status); } return (tiSuccess); } /***************************************************************************** *! \brief itdsataIOPrepareSGL * * This function is called to prepare and translate the TISA SGL information * to the SAS/SATA LL layer specific SGL. This function is similar to * itdssIOPrepareSGL(), except the request body reflects SATA host request. * * \param tiRoot: Pointer to initiator driver/port instance. * \param IORequestBody: TD layer request body for the I/O. * \param tiSgl1: First TISA SGL info. * \param tiSgl2: Second TISA SGL info. * \param sglVirtualAddr: The virtual address of the first element in * tiSgl1 when tiSgl1 is used with the type tiSglList. * * \return: * * \e tiSuccess: SGL initialized successfully. * \e tiError: Failed to initialize SGL. * * *****************************************************************************/\ osGLOBAL bit32 itdsataIOPrepareSGL( tiRoot_t *tiRoot, tdIORequestBody_t *tdIORequestBody, tiSgl_t *tiSgl1, void *sglVirtualAddr ) { agsaSgl_t *agSgl; /* Uppper should be zero-out */ TI_DBG5(("itdsataIOPrepareSGL: start\n")); TI_DBG5(("itdsataIOPrepareSGL: tiSgl1->upper %d tiSgl1->lower %d tiSgl1->len %d\n", tiSgl1->upper, tiSgl1->lower, tiSgl1->len)); TI_DBG5(("itdsataIOPrepareSGL: tiSgl1->type %d\n", tiSgl1->type)); /* SGL for SATA request */ agSgl = &(tdIORequestBody->transport.SATA.agSATARequestBody.agSgl); agSgl->len = 0; if (tiSgl1 == agNULL) { TI_DBG1(("itdsataIOPrepareSGL: Error tiSgl1 is NULL\n")); return tiError; } if (tdIORequestBody->IOType.InitiatorRegIO.expDataLength == 0) { TI_DBG3(("itdsataIOPrepareSGL: expDataLength is 0\n")); agSgl->sgUpper = 0; agSgl->sgLower = 0; agSgl->len = 0; CLEAR_ESGL_EXTEND(agSgl->extReserved); return tiSuccess; } agSgl->sgUpper = tiSgl1->upper; agSgl->sgLower = tiSgl1->lower; agSgl->len = tiSgl1->len; agSgl->extReserved = tiSgl1->type; return tiSuccess; } /***************************************************************************** *! \brief sataLLIOAbort * * This routine is called to initiate an I/O abort to LL layer. * This function implements/encapsulates HW and LL API dependency. * * \param tiRoot: Pointer to TISA initiator driver/port instance. * \param taskTag: Pointer to TISA I/O context to be aborted. * * \return: * * \e tiSuccess: Abort request was successfully initiated. * \e tiBusy: No resources available, try again later. * \e tiError: Other errors that prevent the abort request from being * started.. * * *****************************************************************************/ #ifdef REMOVED /* not in use */ GLOBAL bit32 sataLLIOAbort ( tiRoot_t *tiRoot, tiIORequest_t *taskTag ) { tdsaRoot_t *tdsaRoot; tdsaContext_t *tdsaAllShared; agsaRoot_t *agRoot; tdIORequestBody_t *tdIORequestBody; agsaIORequest_t *agIORequest; bit32 status; TI_DBG2(("sataLLIOAbort: start\n")); tdsaRoot = (tdsaRoot_t *) tiRoot->tdData; tdsaAllShared = (tdsaContext_t *)&tdsaRoot->tdsaAllShared; agRoot = &(tdsaAllShared->agRootNonInt); tdIORequestBody = (tdIORequestBody_t *)taskTag->tdData; agIORequest = &(tdIORequestBody->agIORequest); status = saSATAAbort(agRoot, 0, agIORequest); TI_DBG2(("sataLLIOAbort: agIORequest %p\n", agIORequest)); TI_DBG2(("sataLLIOAbort: saSATAAbort returns status, %x\n", status)); if (status == AGSA_RC_SUCCESS) { return tiSuccess; } else { return tiError; } } #endif #ifdef REMOVED /***************************************************************************** *! \brief sataLLReset * * This routine is called to initiate a SATA device reset to LL layer. * This function implements/encapsulates HW and LL API dependency. * * \param tiRoot: Pointer to TISA initiator driver/port instance. * \param tiDeviceHandle: Pointer to TISA device handle for this I/O. * \param option: SATA device reset option * * \return: None * * *****************************************************************************/ /* not in use */ GLOBAL void sataLLReset( tiRoot_t *tiRoot, tiDeviceHandle_t *tiDeviceHandle, bit32 option) { tdsaRoot_t *tdsaRoot; tdsaContext_t *tdsaAllShared; tdsaDeviceData_t *oneDeviceData; agsaRoot_t *agRoot; agsaDevHandle_t *agDevHandle; TI_DBG2(("sataLLReset: extry\n")); tdsaRoot = (tdsaRoot_t *) tiRoot->tdData; tdsaAllShared = (tdsaContext_t *)&tdsaRoot->tdsaAllShared; agRoot = &(tdsaAllShared->agRootNonInt); oneDeviceData = (tdsaDeviceData_t *)tiDeviceHandle->tdData; agDevHandle = oneDeviceData->agDevHandle; satSATADeviceReset( tiRoot, oneDeviceData, AGSA_PHY_HARD_RESET); } #endif /* 0 */ #endif /* #ifdef SATA_ENABLE */