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Diffstat (limited to 'drivers/message/fusion/mptscsih.c')
| -rw-r--r-- | drivers/message/fusion/mptscsih.c | 3269 |
1 files changed, 3269 insertions, 0 deletions
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c new file mode 100644 index 0000000000..2bc17087d1 --- /dev/null +++ b/drivers/message/fusion/mptscsih.c @@ -0,0 +1,3269 @@ +/* + * linux/drivers/message/fusion/mptscsih.c + * For use with LSI PCI chip/adapter(s) + * running LSI Fusion MPT (Message Passing Technology) firmware. + * + * Copyright (c) 1999-2008 LSI Corporation + * (mailto:DL-MPTFusionLinux@lsi.com) + * + */ +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + NO WARRANTY + THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR + CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT + LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, + MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is + solely responsible for determining the appropriateness of using and + distributing the Program and assumes all risks associated with its + exercise of rights under this Agreement, including but not limited to + the risks and costs of program errors, damage to or loss of data, + programs or equipment, and unavailability or interruption of operations. + + DISCLAIMER OF LIABILITY + NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), 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 OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED + HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/kdev_t.h> +#include <linux/blkdev.h> +#include <linux/delay.h> /* for mdelay */ +#include <linux/interrupt.h> +#include <linux/reboot.h> /* notifier code */ +#include <linux/workqueue.h> + +#include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_tcq.h> +#include <scsi/scsi_dbg.h> + +#include "mptbase.h" +#include "mptscsih.h" +#include "lsi/mpi_log_sas.h" + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +#define my_NAME "Fusion MPT SCSI Host driver" +#define my_VERSION MPT_LINUX_VERSION_COMMON +#define MYNAM "mptscsih" + +MODULE_AUTHOR(MODULEAUTHOR); +MODULE_DESCRIPTION(my_NAME); +MODULE_LICENSE("GPL"); +MODULE_VERSION(my_VERSION); + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * Other private/forward protos... + */ +struct scsi_cmnd *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i); +static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i); +static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd); +static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd); +int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); +static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq); +int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); + +static int mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt, + SCSIIORequest_t *pReq, int req_idx); +static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx); +static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply); + +int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, + u64 lun, int ctx2abort, ulong timeout); + +int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset); +int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply); + +void +mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code); +static int mptscsih_get_completion_code(MPT_ADAPTER *ioc, + MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply); +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); + +static int +mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type, + SCSITaskMgmtReply_t *pScsiTmReply); +void mptscsih_remove(struct pci_dev *); +void mptscsih_shutdown(struct pci_dev *); +#ifdef CONFIG_PM +int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state); +int mptscsih_resume(struct pci_dev *pdev); +#endif + + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_getFreeChainBuffer - Function to get a free chain + * from the MPT_SCSI_HOST FreeChainQ. + * @ioc: Pointer to MPT_ADAPTER structure + * @req_idx: Index of the SCSI IO request frame. (output) + * + * return SUCCESS or FAILED + */ +static inline int +mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex) +{ + MPT_FRAME_HDR *chainBuf; + unsigned long flags; + int rc; + int chain_idx; + + dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n", + ioc->name)); + spin_lock_irqsave(&ioc->FreeQlock, flags); + if (!list_empty(&ioc->FreeChainQ)) { + int offset; + + chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR, + u.frame.linkage.list); + list_del(&chainBuf->u.frame.linkage.list); + offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer; + chain_idx = offset / ioc->req_sz; + rc = SUCCESS; + dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n", + ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx)); + } else { + rc = FAILED; + chain_idx = MPT_HOST_NO_CHAIN; + dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n", + ioc->name)); + } + spin_unlock_irqrestore(&ioc->FreeQlock, flags); + + *retIndex = chain_idx; + return rc; +} /* mptscsih_getFreeChainBuffer() */ + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_AddSGE - Add a SGE (plus chain buffers) to the + * SCSIIORequest_t Message Frame. + * @ioc: Pointer to MPT_ADAPTER structure + * @SCpnt: Pointer to scsi_cmnd structure + * @pReq: Pointer to SCSIIORequest_t structure + * + * Returns ... + */ +static int +mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt, + SCSIIORequest_t *pReq, int req_idx) +{ + char *psge; + char *chainSge; + struct scatterlist *sg; + int frm_sz; + int sges_left, sg_done; + int chain_idx = MPT_HOST_NO_CHAIN; + int sgeOffset; + int numSgeSlots, numSgeThisFrame; + u32 sgflags, sgdir, thisxfer = 0; + int chain_dma_off = 0; + int newIndex; + int ii; + dma_addr_t v2; + u32 RequestNB; + + sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK; + if (sgdir == MPI_SCSIIO_CONTROL_WRITE) { + sgdir = MPT_TRANSFER_HOST_TO_IOC; + } else { + sgdir = MPT_TRANSFER_IOC_TO_HOST; + } + + psge = (char *) &pReq->SGL; + frm_sz = ioc->req_sz; + + /* Map the data portion, if any. + * sges_left = 0 if no data transfer. + */ + sges_left = scsi_dma_map(SCpnt); + if (sges_left < 0) + return FAILED; + + /* Handle the SG case. + */ + sg = scsi_sglist(SCpnt); + sg_done = 0; + sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION); + chainSge = NULL; + + /* Prior to entering this loop - the following must be set + * current MF: sgeOffset (bytes) + * chainSge (Null if original MF is not a chain buffer) + * sg_done (num SGE done for this MF) + */ + +nextSGEset: + numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size); + numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots; + + sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir; + + /* Get first (num - 1) SG elements + * Skip any SG entries with a length of 0 + * NOTE: at finish, sg and psge pointed to NEXT data/location positions + */ + for (ii=0; ii < (numSgeThisFrame-1); ii++) { + thisxfer = sg_dma_len(sg); + if (thisxfer == 0) { + /* Get next SG element from the OS */ + sg = sg_next(sg); + sg_done++; + continue; + } + + v2 = sg_dma_address(sg); + ioc->add_sge(psge, sgflags | thisxfer, v2); + + /* Get next SG element from the OS */ + sg = sg_next(sg); + psge += ioc->SGE_size; + sgeOffset += ioc->SGE_size; + sg_done++; + } + + if (numSgeThisFrame == sges_left) { + /* Add last element, end of buffer and end of list flags. + */ + sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT | + MPT_SGE_FLAGS_END_OF_BUFFER | + MPT_SGE_FLAGS_END_OF_LIST; + + /* Add last SGE and set termination flags. + * Note: Last SGE may have a length of 0 - which should be ok. + */ + thisxfer = sg_dma_len(sg); + + v2 = sg_dma_address(sg); + ioc->add_sge(psge, sgflags | thisxfer, v2); + sgeOffset += ioc->SGE_size; + sg_done++; + + if (chainSge) { + /* The current buffer is a chain buffer, + * but there is not another one. + * Update the chain element + * Offset and Length fields. + */ + ioc->add_chain((char *)chainSge, 0, sgeOffset, + ioc->ChainBufferDMA + chain_dma_off); + } else { + /* The current buffer is the original MF + * and there is no Chain buffer. + */ + pReq->ChainOffset = 0; + RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03; + dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset)); + ioc->RequestNB[req_idx] = RequestNB; + } + } else { + /* At least one chain buffer is needed. + * Complete the first MF + * - last SGE element, set the LastElement bit + * - set ChainOffset (words) for orig MF + * (OR finish previous MF chain buffer) + * - update MFStructPtr ChainIndex + * - Populate chain element + * Also + * Loop until done. + */ + + dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n", + ioc->name, sg_done)); + + /* Set LAST_ELEMENT flag for last non-chain element + * in the buffer. Since psge points at the NEXT + * SGE element, go back one SGE element, update the flags + * and reset the pointer. (Note: sgflags & thisxfer are already + * set properly). + */ + if (sg_done) { + u32 *ptmp = (u32 *) (psge - ioc->SGE_size); + sgflags = le32_to_cpu(*ptmp); + sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT; + *ptmp = cpu_to_le32(sgflags); + } + + if (chainSge) { + /* The current buffer is a chain buffer. + * chainSge points to the previous Chain Element. + * Update its chain element Offset and Length (must + * include chain element size) fields. + * Old chain element is now complete. + */ + u8 nextChain = (u8) (sgeOffset >> 2); + sgeOffset += ioc->SGE_size; + ioc->add_chain((char *)chainSge, nextChain, sgeOffset, + ioc->ChainBufferDMA + chain_dma_off); + } else { + /* The original MF buffer requires a chain buffer - + * set the offset. + * Last element in this MF is a chain element. + */ + pReq->ChainOffset = (u8) (sgeOffset >> 2); + RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03; + dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset)); + ioc->RequestNB[req_idx] = RequestNB; + } + + sges_left -= sg_done; + + + /* NOTE: psge points to the beginning of the chain element + * in current buffer. Get a chain buffer. + */ + if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) { + dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n", + ioc->name, pReq->CDB[0], SCpnt)); + return FAILED; + } + + /* Update the tracking arrays. + * If chainSge == NULL, update ReqToChain, else ChainToChain + */ + if (chainSge) { + ioc->ChainToChain[chain_idx] = newIndex; + } else { + ioc->ReqToChain[req_idx] = newIndex; + } + chain_idx = newIndex; + chain_dma_off = ioc->req_sz * chain_idx; + + /* Populate the chainSGE for the current buffer. + * - Set chain buffer pointer to psge and fill + * out the Address and Flags fields. + */ + chainSge = (char *) psge; + dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Current buff @ %p (index 0x%x)", + ioc->name, psge, req_idx)); + + /* Start the SGE for the next buffer + */ + psge = (char *) (ioc->ChainBuffer + chain_dma_off); + sgeOffset = 0; + sg_done = 0; + + dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Chain buff @ %p (index 0x%x)\n", + ioc->name, psge, chain_idx)); + + /* Start the SGE for the next buffer + */ + + goto nextSGEset; + } + + return SUCCESS; +} /* mptscsih_AddSGE() */ + +static void +mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget, + U32 SlotStatus) +{ + MPT_FRAME_HDR *mf; + SEPRequest_t *SEPMsg; + + if (ioc->bus_type != SAS) + return; + + /* Not supported for hidden raid components + */ + if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) + return; + + if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { + dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n", + ioc->name,__func__)); + return; + } + + SEPMsg = (SEPRequest_t *)mf; + SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR; + SEPMsg->Bus = vtarget->channel; + SEPMsg->TargetID = vtarget->id; + SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS; + SEPMsg->SlotStatus = SlotStatus; + devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "Sending SEP cmd=%x channel=%d id=%d\n", + ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID)); + mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); +} + +#ifdef CONFIG_FUSION_LOGGING +/** + * mptscsih_info_scsiio - debug print info on reply frame + * @ioc: Pointer to MPT_ADAPTER structure + * @sc: original scsi cmnd pointer + * @pScsiReply: Pointer to MPT reply frame + * + * MPT_DEBUG_REPLY needs to be enabled to obtain this info + * + * Refer to lsi/mpi.h. + **/ +static void +mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply) +{ + char *desc = NULL; + char *desc1 = NULL; + u16 ioc_status; + u8 skey, asc, ascq; + + ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK; + + switch (ioc_status) { + + case MPI_IOCSTATUS_SUCCESS: + desc = "success"; + break; + case MPI_IOCSTATUS_SCSI_INVALID_BUS: + desc = "invalid bus"; + break; + case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: + desc = "invalid target_id"; + break; + case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: + desc = "device not there"; + break; + case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: + desc = "data overrun"; + break; + case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: + desc = "data underrun"; + break; + case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: + desc = "I/O data error"; + break; + case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: + desc = "protocol error"; + break; + case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: + desc = "task terminated"; + break; + case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: + desc = "residual mismatch"; + break; + case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: + desc = "task management failed"; + break; + case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: + desc = "IOC terminated"; + break; + case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: + desc = "ext terminated"; + break; + default: + desc = ""; + break; + } + + switch (pScsiReply->SCSIStatus) + { + + case MPI_SCSI_STATUS_SUCCESS: + desc1 = "success"; + break; + case MPI_SCSI_STATUS_CHECK_CONDITION: + desc1 = "check condition"; + break; + case MPI_SCSI_STATUS_CONDITION_MET: + desc1 = "condition met"; + break; + case MPI_SCSI_STATUS_BUSY: + desc1 = "busy"; + break; + case MPI_SCSI_STATUS_INTERMEDIATE: + desc1 = "intermediate"; + break; + case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET: + desc1 = "intermediate condmet"; + break; + case MPI_SCSI_STATUS_RESERVATION_CONFLICT: + desc1 = "reservation conflict"; + break; + case MPI_SCSI_STATUS_COMMAND_TERMINATED: + desc1 = "command terminated"; + break; + case MPI_SCSI_STATUS_TASK_SET_FULL: + desc1 = "task set full"; + break; + case MPI_SCSI_STATUS_ACA_ACTIVE: + desc1 = "aca active"; + break; + case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT: + desc1 = "fcpext device logged out"; + break; + case MPI_SCSI_STATUS_FCPEXT_NO_LINK: + desc1 = "fcpext no link"; + break; + case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED: + desc1 = "fcpext unassigned"; + break; + default: + desc1 = ""; + break; + } + + scsi_print_command(sc); + printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %llu\n", + ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun); + printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, " + "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow, + scsi_get_resid(sc)); + printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, " + "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag), + le32_to_cpu(pScsiReply->TransferCount), sc->result); + + printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), " + "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n", + ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus, + pScsiReply->SCSIState); + + if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) { + skey = sc->sense_buffer[2] & 0x0F; + asc = sc->sense_buffer[12]; + ascq = sc->sense_buffer[13]; + + printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: " + "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq); + } + + /* + * Look for + dump FCP ResponseInfo[]! + */ + if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID && + pScsiReply->ResponseInfo) + printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n", + ioc->name, le32_to_cpu(pScsiReply->ResponseInfo)); +} +#endif + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_io_done - Main SCSI IO callback routine registered to + * Fusion MPT (base) driver + * @ioc: Pointer to MPT_ADAPTER structure + * @mf: Pointer to original MPT request frame + * @r: Pointer to MPT reply frame (NULL if TurboReply) + * + * This routine is called from mpt.c::mpt_interrupt() at the completion + * of any SCSI IO request. + * This routine is registered with the Fusion MPT (base) driver at driver + * load/init time via the mpt_register() API call. + * + * Returns 1 indicating alloc'd request frame ptr should be freed. + */ +int +mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr) +{ + struct scsi_cmnd *sc; + MPT_SCSI_HOST *hd; + SCSIIORequest_t *pScsiReq; + SCSIIOReply_t *pScsiReply; + u16 req_idx, req_idx_MR; + VirtDevice *vdevice; + VirtTarget *vtarget; + + hd = shost_priv(ioc->sh); + req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); + req_idx_MR = (mr != NULL) ? + le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx; + + /* Special case, where already freed message frame is received from + * Firmware. It happens with Resetting IOC. + * Return immediately. Do not care + */ + if ((req_idx != req_idx_MR) || + (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf)) + return 0; + + sc = mptscsih_getclear_scsi_lookup(ioc, req_idx); + if (sc == NULL) { + MPIHeader_t *hdr = (MPIHeader_t *)mf; + + /* Remark: writeSDP1 will use the ScsiDoneCtx + * If a SCSI I/O cmd, device disabled by OS and + * completion done. Cannot touch sc struct. Just free mem. + */ + if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST) + printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n", + ioc->name); + + mptscsih_freeChainBuffers(ioc, req_idx); + return 1; + } + + if ((unsigned char *)mf != sc->host_scribble) { + mptscsih_freeChainBuffers(ioc, req_idx); + return 1; + } + + if (ioc->bus_type == SAS) { + VirtDevice *vdevice = sc->device->hostdata; + + if (!vdevice || !vdevice->vtarget || + vdevice->vtarget->deleted) { + sc->result = DID_NO_CONNECT << 16; + goto out; + } + } + + sc->host_scribble = NULL; + sc->result = DID_OK << 16; /* Set default reply as OK */ + pScsiReq = (SCSIIORequest_t *) mf; + pScsiReply = (SCSIIOReply_t *) mr; + + if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){ + dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n", + ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag)); + }else{ + dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n", + ioc->name, mf, mr, sc, req_idx)); + } + + if (pScsiReply == NULL) { + /* special context reply handling */ + ; + } else { + u32 xfer_cnt; + u16 status; + u8 scsi_state, scsi_status; + u32 log_info; + + status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK; + + scsi_state = pScsiReply->SCSIState; + scsi_status = pScsiReply->SCSIStatus; + xfer_cnt = le32_to_cpu(pScsiReply->TransferCount); + scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt); + log_info = le32_to_cpu(pScsiReply->IOCLogInfo); + + /* + * if we get a data underrun indication, yet no data was + * transferred and the SCSI status indicates that the + * command was never started, change the data underrun + * to success + */ + if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 && + (scsi_status == MPI_SCSI_STATUS_BUSY || + scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT || + scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) { + status = MPI_IOCSTATUS_SUCCESS; + } + + if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) + mptscsih_copy_sense_data(sc, hd, mf, pScsiReply); + + /* + * Look for + dump FCP ResponseInfo[]! + */ + if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID && + pScsiReply->ResponseInfo) { + printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%llu] " + "FCP_ResponseInfo=%08xh\n", ioc->name, + sc->device->host->host_no, sc->device->channel, + sc->device->id, sc->device->lun, + le32_to_cpu(pScsiReply->ResponseInfo)); + } + + switch(status) { + case MPI_IOCSTATUS_BUSY: /* 0x0002 */ + case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: /* 0x0006 */ + /* CHECKME! + * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry) + * But not: DID_BUS_BUSY lest one risk + * killing interrupt handler:-( + */ + sc->result = SAM_STAT_BUSY; + break; + + case MPI_IOCSTATUS_SCSI_INVALID_BUS: /* 0x0041 */ + case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: /* 0x0042 */ + sc->result = DID_BAD_TARGET << 16; + break; + + case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */ + /* Spoof to SCSI Selection Timeout! */ + if (ioc->bus_type != FC) + sc->result = DID_NO_CONNECT << 16; + /* else fibre, just stall until rescan event */ + else + sc->result = DID_REQUEUE << 16; + + if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF) + hd->sel_timeout[pScsiReq->TargetID]++; + + vdevice = sc->device->hostdata; + if (!vdevice) + break; + vtarget = vdevice->vtarget; + if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) { + mptscsih_issue_sep_command(ioc, vtarget, + MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED); + vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON; + } + break; + + case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */ + if ( ioc->bus_type == SAS ) { + u16 ioc_status = + le16_to_cpu(pScsiReply->IOCStatus); + if ((ioc_status & + MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) + && + ((log_info & SAS_LOGINFO_MASK) == + SAS_LOGINFO_NEXUS_LOSS)) { + VirtDevice *vdevice = + sc->device->hostdata; + + /* flag the device as being in + * device removal delay so we can + * notify the midlayer to hold off + * on timeout eh */ + if (vdevice && vdevice-> + vtarget && + vdevice->vtarget-> + raidVolume) + printk(KERN_INFO + "Skipping Raid Volume" + "for inDMD\n"); + else if (vdevice && + vdevice->vtarget) + vdevice->vtarget-> + inDMD = 1; + + sc->result = + (DID_TRANSPORT_DISRUPTED + << 16); + break; + } + } else if (ioc->bus_type == FC) { + /* + * The FC IOC may kill a request for variety of + * reasons, some of which may be recovered by a + * retry, some which are unlikely to be + * recovered. Return DID_ERROR instead of + * DID_RESET to permit retry of the command, + * just not an infinite number of them + */ + sc->result = DID_ERROR << 16; + break; + } + + /* + * Allow non-SAS & non-NEXUS_LOSS to drop into below code + */ + fallthrough; + + case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */ + /* Linux handles an unsolicited DID_RESET better + * than an unsolicited DID_ABORT. + */ + sc->result = DID_RESET << 16; + break; + + case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */ + if (ioc->bus_type == FC) + sc->result = DID_ERROR << 16; + else + sc->result = DID_RESET << 16; + break; + + case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */ + scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt); + if((xfer_cnt==0)||(sc->underflow > xfer_cnt)) + sc->result=DID_SOFT_ERROR << 16; + else /* Sufficient data transfer occurred */ + sc->result = (DID_OK << 16) | scsi_status; + dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n", + ioc->name, sc->result, sc->device->channel, sc->device->id)); + break; + + case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */ + /* + * Do upfront check for valid SenseData and give it + * precedence! + */ + sc->result = (DID_OK << 16) | scsi_status; + if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) { + + /* + * For an Errata on LSI53C1030 + * When the length of request data + * and transfer data are different + * with result of command (READ or VERIFY), + * DID_SOFT_ERROR is set. + */ + if (ioc->bus_type == SPI) { + if ((pScsiReq->CDB[0] == READ_6 && ((pScsiReq->CDB[1] & 0x02) == 0)) || + pScsiReq->CDB[0] == READ_10 || + pScsiReq->CDB[0] == READ_12 || + (pScsiReq->CDB[0] == READ_16 && + ((pScsiReq->CDB[1] & 0x02) == 0)) || + pScsiReq->CDB[0] == VERIFY || + pScsiReq->CDB[0] == VERIFY_16) { + if (scsi_bufflen(sc) != + xfer_cnt) { + sc->result = + DID_SOFT_ERROR << 16; + printk(KERN_WARNING "Errata" + "on LSI53C1030 occurred." + "sc->req_bufflen=0x%02x," + "xfer_cnt=0x%02x\n", + scsi_bufflen(sc), + xfer_cnt); + } + } + } + + if (xfer_cnt < sc->underflow) { + if (scsi_status == SAM_STAT_BUSY) + sc->result = SAM_STAT_BUSY; + else + sc->result = DID_SOFT_ERROR << 16; + } + if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) { + /* What to do? + */ + sc->result = DID_SOFT_ERROR << 16; + } + else if (scsi_state & MPI_SCSI_STATE_TERMINATED) { + /* Not real sure here either... */ + sc->result = DID_RESET << 16; + } + } + + + dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT + " sc->underflow={report ERR if < %02xh bytes xfer'd}\n", + ioc->name, sc->underflow)); + dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT + " ActBytesXferd=%02xh\n", ioc->name, xfer_cnt)); + + /* Report Queue Full + */ + if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL) + mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); + + break; + + case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */ + scsi_set_resid(sc, 0); + fallthrough; + case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */ + case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */ + sc->result = (DID_OK << 16) | scsi_status; + if (scsi_state == 0) { + ; + } else if (scsi_state & + MPI_SCSI_STATE_AUTOSENSE_VALID) { + + /* + * For potential trouble on LSI53C1030. + * (date:2007.xx.) + * It is checked whether the length of + * request data is equal to + * the length of transfer and residual. + * MEDIUM_ERROR is set by incorrect data. + */ + if ((ioc->bus_type == SPI) && + (sc->sense_buffer[2] & 0x20)) { + u32 difftransfer; + difftransfer = + sc->sense_buffer[3] << 24 | + sc->sense_buffer[4] << 16 | + sc->sense_buffer[5] << 8 | + sc->sense_buffer[6]; + if (((sc->sense_buffer[3] & 0x80) == + 0x80) && (scsi_bufflen(sc) + != xfer_cnt)) { + sc->sense_buffer[2] = + MEDIUM_ERROR; + sc->sense_buffer[12] = 0xff; + sc->sense_buffer[13] = 0xff; + printk(KERN_WARNING"Errata" + "on LSI53C1030 occurred." + "sc->req_bufflen=0x%02x," + "xfer_cnt=0x%02x\n" , + scsi_bufflen(sc), + xfer_cnt); + } + if (((sc->sense_buffer[3] & 0x80) + != 0x80) && + (scsi_bufflen(sc) != + xfer_cnt + difftransfer)) { + sc->sense_buffer[2] = + MEDIUM_ERROR; + sc->sense_buffer[12] = 0xff; + sc->sense_buffer[13] = 0xff; + printk(KERN_WARNING + "Errata on LSI53C1030 occurred" + "sc->req_bufflen=0x%02x," + " xfer_cnt=0x%02x," + "difftransfer=0x%02x\n", + scsi_bufflen(sc), + xfer_cnt, + difftransfer); + } + } + + /* + * If running against circa 200003dd 909 MPT f/w, + * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL + * (QUEUE_FULL) returned from device! --> get 0x0000?128 + * and with SenseBytes set to 0. + */ + if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL) + mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); + + } + else if (scsi_state & + (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS) + ) { + /* + * What to do? + */ + sc->result = DID_SOFT_ERROR << 16; + } + else if (scsi_state & MPI_SCSI_STATE_TERMINATED) { + /* Not real sure here either... */ + sc->result = DID_RESET << 16; + } + else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) { + /* Device Inq. data indicates that it supports + * QTags, but rejects QTag messages. + * This command completed OK. + * + * Not real sure here either so do nothing... */ + } + + if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL) + mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); + + /* Add handling of: + * Reservation Conflict, Busy, + * Command Terminated, CHECK + */ + break; + + case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */ + sc->result = DID_SOFT_ERROR << 16; + break; + + case MPI_IOCSTATUS_INVALID_FUNCTION: /* 0x0001 */ + case MPI_IOCSTATUS_INVALID_SGL: /* 0x0003 */ + case MPI_IOCSTATUS_INTERNAL_ERROR: /* 0x0004 */ + case MPI_IOCSTATUS_RESERVED: /* 0x0005 */ + case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */ + case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */ + case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */ + case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */ + default: + /* + * What to do? + */ + sc->result = DID_SOFT_ERROR << 16; + break; + + } /* switch(status) */ + +#ifdef CONFIG_FUSION_LOGGING + if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY)) + mptscsih_info_scsiio(ioc, sc, pScsiReply); +#endif + + } /* end of address reply case */ +out: + /* Unmap the DMA buffers, if any. */ + scsi_dma_unmap(sc); + + scsi_done(sc); /* Issue the command callback */ + + /* Free Chain buffers */ + mptscsih_freeChainBuffers(ioc, req_idx); + return 1; +} + +/* + * mptscsih_flush_running_cmds - For each command found, search + * Scsi_Host instance taskQ and reply to OS. + * Called only if recovering from a FW reload. + * @hd: Pointer to a SCSI HOST structure + * + * Returns: None. + * + * Must be called while new I/Os are being queued. + */ +void +mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd) +{ + MPT_ADAPTER *ioc = hd->ioc; + struct scsi_cmnd *sc; + SCSIIORequest_t *mf = NULL; + int ii; + int channel, id; + + for (ii= 0; ii < ioc->req_depth; ii++) { + sc = mptscsih_getclear_scsi_lookup(ioc, ii); + if (!sc) + continue; + mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii); + if (!mf) + continue; + channel = mf->Bus; + id = mf->TargetID; + mptscsih_freeChainBuffers(ioc, ii); + mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); + if ((unsigned char *)mf != sc->host_scribble) + continue; + scsi_dma_unmap(sc); + sc->result = DID_RESET << 16; + sc->host_scribble = NULL; + dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT + "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, " + "idx=%x\n", ioc->name, channel, id, sc, mf, ii)); + scsi_done(sc); + } +} +EXPORT_SYMBOL(mptscsih_flush_running_cmds); + +/* + * mptscsih_search_running_cmds - Delete any commands associated + * with the specified target and lun. Function called only + * when a lun is disable by mid-layer. + * Do NOT access the referenced scsi_cmnd structure or + * members. Will cause either a paging or NULL ptr error. + * (BUT, BUT, BUT, the code does reference it! - mdr) + * @hd: Pointer to a SCSI HOST structure + * @vdevice: per device private data + * + * Returns: None. + * + * Called from slave_destroy. + */ +static void +mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice) +{ + SCSIIORequest_t *mf = NULL; + int ii; + struct scsi_cmnd *sc; + struct scsi_lun lun; + MPT_ADAPTER *ioc = hd->ioc; + unsigned long flags; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + for (ii = 0; ii < ioc->req_depth; ii++) { + if ((sc = ioc->ScsiLookup[ii]) != NULL) { + + mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii); + if (mf == NULL) + continue; + /* If the device is a hidden raid component, then its + * expected that the mf->function will be RAID_SCSI_IO + */ + if (vdevice->vtarget->tflags & + MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function != + MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) + continue; + + int_to_scsilun(vdevice->lun, &lun); + if ((mf->Bus != vdevice->vtarget->channel) || + (mf->TargetID != vdevice->vtarget->id) || + memcmp(lun.scsi_lun, mf->LUN, 8)) + continue; + + if ((unsigned char *)mf != sc->host_scribble) + continue; + ioc->ScsiLookup[ii] = NULL; + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + mptscsih_freeChainBuffers(ioc, ii); + mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); + scsi_dma_unmap(sc); + sc->host_scribble = NULL; + sc->result = DID_NO_CONNECT << 16; + dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, + MYIOC_s_FMT "completing cmds: fw_channel %d, " + "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name, + vdevice->vtarget->channel, vdevice->vtarget->id, + sc, mf, ii)); + scsi_done(sc); + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + } + } + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + return; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_report_queue_full - Report QUEUE_FULL status returned + * from a SCSI target device. + * @sc: Pointer to scsi_cmnd structure + * @pScsiReply: Pointer to SCSIIOReply_t + * @pScsiReq: Pointer to original SCSI request + * + * This routine periodically reports QUEUE_FULL status returned from a + * SCSI target device. It reports this to the console via kernel + * printk() API call, not more than once every 10 seconds. + */ +static void +mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq) +{ + long time = jiffies; + MPT_SCSI_HOST *hd; + MPT_ADAPTER *ioc; + + if (sc->device == NULL) + return; + if (sc->device->host == NULL) + return; + if ((hd = shost_priv(sc->device->host)) == NULL) + return; + ioc = hd->ioc; + if (time - hd->last_queue_full > 10 * HZ) { + dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%llu) reported QUEUE_FULL!\n", + ioc->name, 0, sc->device->id, sc->device->lun)); + hd->last_queue_full = time; + } +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_remove - Removed scsi devices + * @pdev: Pointer to pci_dev structure + * + * + */ +void +mptscsih_remove(struct pci_dev *pdev) +{ + MPT_ADAPTER *ioc = pci_get_drvdata(pdev); + struct Scsi_Host *host = ioc->sh; + MPT_SCSI_HOST *hd; + int sz1; + + if (host == NULL) + hd = NULL; + else + hd = shost_priv(host); + + mptscsih_shutdown(pdev); + + sz1=0; + + if (ioc->ScsiLookup != NULL) { + sz1 = ioc->req_depth * sizeof(void *); + kfree(ioc->ScsiLookup); + ioc->ScsiLookup = NULL; + } + + dprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "Free'd ScsiLookup (%d) memory\n", + ioc->name, sz1)); + + if (hd) + kfree(hd->info_kbuf); + + /* NULL the Scsi_Host pointer + */ + ioc->sh = NULL; + + if (host) + scsi_host_put(host); + mpt_detach(pdev); + +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_shutdown - reboot notifier + * + */ +void +mptscsih_shutdown(struct pci_dev *pdev) +{ +} + +#ifdef CONFIG_PM +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_suspend - Fusion MPT scsi driver suspend routine. + * + * + */ +int +mptscsih_suspend(struct pci_dev *pdev, pm_message_t state) +{ + MPT_ADAPTER *ioc = pci_get_drvdata(pdev); + + scsi_block_requests(ioc->sh); + mptscsih_shutdown(pdev); + return mpt_suspend(pdev,state); +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_resume - Fusion MPT scsi driver resume routine. + * + * + */ +int +mptscsih_resume(struct pci_dev *pdev) +{ + MPT_ADAPTER *ioc = pci_get_drvdata(pdev); + int rc; + + rc = mpt_resume(pdev); + scsi_unblock_requests(ioc->sh); + return rc; +} + +#endif + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_info - Return information about MPT adapter + * @SChost: Pointer to Scsi_Host structure + * + * (linux scsi_host_template.info routine) + * + * Returns pointer to buffer where information was written. + */ +const char * +mptscsih_info(struct Scsi_Host *SChost) +{ + MPT_SCSI_HOST *h; + int size = 0; + + h = shost_priv(SChost); + + if (h->info_kbuf == NULL) + if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL) + return h->info_kbuf; + h->info_kbuf[0] = '\0'; + + mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0); + h->info_kbuf[size-1] = '\0'; + + return h->info_kbuf; +} + +int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host) +{ + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + seq_printf(m, "%s: %s, ", ioc->name, ioc->prod_name); + seq_printf(m, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word); + seq_printf(m, "Ports=%d, ", ioc->facts.NumberOfPorts); + seq_printf(m, "MaxQ=%d\n", ioc->req_depth); + + return 0; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +#define ADD_INDEX_LOG(req_ent) do { } while(0) + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine. + * @SCpnt: Pointer to scsi_cmnd structure + * + * (linux scsi_host_template.queuecommand routine) + * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest + * from a linux scsi_cmnd request and send it to the IOC. + * + * Returns 0. (rtn value discarded by linux scsi mid-layer) + */ +int +mptscsih_qcmd(struct scsi_cmnd *SCpnt) +{ + MPT_SCSI_HOST *hd; + MPT_FRAME_HDR *mf; + SCSIIORequest_t *pScsiReq; + VirtDevice *vdevice = SCpnt->device->hostdata; + u32 datalen; + u32 scsictl; + u32 scsidir; + u32 cmd_len; + int my_idx; + int ii; + MPT_ADAPTER *ioc; + + hd = shost_priv(SCpnt->device->host); + ioc = hd->ioc; + + dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p\n", + ioc->name, SCpnt)); + + if (ioc->taskmgmt_quiesce_io) + return SCSI_MLQUEUE_HOST_BUSY; + + /* + * Put together a MPT SCSI request... + */ + if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) { + dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n", + ioc->name)); + return SCSI_MLQUEUE_HOST_BUSY; + } + + pScsiReq = (SCSIIORequest_t *) mf; + + my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); + + ADD_INDEX_LOG(my_idx); + + /* TUR's being issued with scsictl=0x02000000 (DATA_IN)! + * Seems we may receive a buffer (datalen>0) even when there + * will be no data transfer! GRRRRR... + */ + if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) { + datalen = scsi_bufflen(SCpnt); + scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */ + } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) { + datalen = scsi_bufflen(SCpnt); + scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */ + } else { + datalen = 0; + scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER; + } + + /* Default to untagged. Once a target structure has been allocated, + * use the Inquiry data to determine if device supports tagged. + */ + if ((vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES) && + SCpnt->device->tagged_supported) + scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ; + else + scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED; + + + /* Use the above information to set up the message frame + */ + pScsiReq->TargetID = (u8) vdevice->vtarget->id; + pScsiReq->Bus = vdevice->vtarget->channel; + pScsiReq->ChainOffset = 0; + if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) + pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH; + else + pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST; + pScsiReq->CDBLength = SCpnt->cmd_len; + pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE; + pScsiReq->Reserved = 0; + pScsiReq->MsgFlags = mpt_msg_flags(ioc); + int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN); + pScsiReq->Control = cpu_to_le32(scsictl); + + /* + * Write SCSI CDB into the message + */ + cmd_len = SCpnt->cmd_len; + for (ii=0; ii < cmd_len; ii++) + pScsiReq->CDB[ii] = SCpnt->cmnd[ii]; + + for (ii=cmd_len; ii < 16; ii++) + pScsiReq->CDB[ii] = 0; + + /* DataLength */ + pScsiReq->DataLength = cpu_to_le32(datalen); + + /* SenseBuffer low address */ + pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma + + (my_idx * MPT_SENSE_BUFFER_ALLOC)); + + /* Now add the SG list + * Always have a SGE even if null length. + */ + if (datalen == 0) { + /* Add a NULL SGE */ + ioc->add_sge((char *)&pScsiReq->SGL, + MPT_SGE_FLAGS_SSIMPLE_READ | 0, + (dma_addr_t) -1); + } else { + /* Add a 32 or 64 bit SGE */ + if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS) + goto fail; + } + + SCpnt->host_scribble = (unsigned char *)mf; + mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt); + + mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); + dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n", + ioc->name, SCpnt, mf, my_idx)); + DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf); + return 0; + + fail: + mptscsih_freeChainBuffers(ioc, my_idx); + mpt_free_msg_frame(ioc, mf); + return SCSI_MLQUEUE_HOST_BUSY; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_freeChainBuffers - Function to free chain buffers associated + * with a SCSI IO request + * @hd: Pointer to the MPT_SCSI_HOST instance + * @req_idx: Index of the SCSI IO request frame. + * + * Called if SG chain buffer allocation fails and mptscsih callbacks. + * No return. + */ +static void +mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx) +{ + MPT_FRAME_HDR *chain; + unsigned long flags; + int chain_idx; + int next; + + /* Get the first chain index and reset + * tracker state. + */ + chain_idx = ioc->ReqToChain[req_idx]; + ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN; + + while (chain_idx != MPT_HOST_NO_CHAIN) { + + /* Save the next chain buffer index */ + next = ioc->ChainToChain[chain_idx]; + + /* Free this chain buffer and reset + * tracker + */ + ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN; + + chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer + + (chain_idx * ioc->req_sz)); + + spin_lock_irqsave(&ioc->FreeQlock, flags); + list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ); + spin_unlock_irqrestore(&ioc->FreeQlock, flags); + + dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n", + ioc->name, chain_idx)); + + /* handle next */ + chain_idx = next; + } + return; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * Reset Handling + */ + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_IssueTaskMgmt - Generic send Task Management function. + * @hd: Pointer to MPT_SCSI_HOST structure + * @type: Task Management type + * @channel: channel number for task management + * @id: Logical Target ID for reset (if appropriate) + * @lun: Logical Unit for reset (if appropriate) + * @ctx2abort: Context for the task to be aborted (if appropriate) + * @timeout: timeout for task management control + * + * Remark: _HardResetHandler can be invoked from an interrupt thread (timer) + * or a non-interrupt thread. In the former, must not call schedule(). + * + * Not all fields are meaningfull for all task types. + * + * Returns 0 for SUCCESS, or FAILED. + * + **/ +int +mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun, + int ctx2abort, ulong timeout) +{ + MPT_FRAME_HDR *mf; + SCSITaskMgmt_t *pScsiTm; + int ii; + int retval; + MPT_ADAPTER *ioc = hd->ioc; + u8 issue_hard_reset; + u32 ioc_raw_state; + unsigned long time_count; + + issue_hard_reset = 0; + ioc_raw_state = mpt_GetIocState(ioc, 0); + + if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) { + printk(MYIOC_s_WARN_FMT + "TaskMgmt type=%x: IOC Not operational (0x%x)!\n", + ioc->name, type, ioc_raw_state); + printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n", + ioc->name, __func__); + if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0) + printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset " + "FAILED!!\n", ioc->name); + return 0; + } + + /* DOORBELL ACTIVE check is not required if + * MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported. + */ + + if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) + && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) && + (ioc_raw_state & MPI_DOORBELL_ACTIVE)) { + printk(MYIOC_s_WARN_FMT + "TaskMgmt type=%x: ioc_state: " + "DOORBELL_ACTIVE (0x%x)!\n", + ioc->name, type, ioc_raw_state); + return FAILED; + } + + mutex_lock(&ioc->taskmgmt_cmds.mutex); + if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) { + mf = NULL; + retval = FAILED; + goto out; + } + + /* Return Fail to calling function if no message frames available. + */ + if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) { + dfailprintk(ioc, printk(MYIOC_s_ERR_FMT + "TaskMgmt no msg frames!!\n", ioc->name)); + retval = FAILED; + mpt_clear_taskmgmt_in_progress_flag(ioc); + goto out; + } + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n", + ioc->name, mf)); + + /* Format the Request + */ + pScsiTm = (SCSITaskMgmt_t *) mf; + pScsiTm->TargetID = id; + pScsiTm->Bus = channel; + pScsiTm->ChainOffset = 0; + pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT; + + pScsiTm->Reserved = 0; + pScsiTm->TaskType = type; + pScsiTm->Reserved1 = 0; + pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) + ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0; + + int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN); + + for (ii=0; ii < 7; ii++) + pScsiTm->Reserved2[ii] = 0; + + pScsiTm->TaskMsgContext = ctx2abort; + + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) " + "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort, + type, timeout)); + + DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm); + + INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status) + time_count = jiffies; + if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) && + (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) + mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf); + else { + retval = mpt_send_handshake_request(ioc->TaskCtx, ioc, + sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP); + if (retval) { + dfailprintk(ioc, printk(MYIOC_s_ERR_FMT + "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n", + ioc->name, mf, retval)); + mpt_free_msg_frame(ioc, mf); + mpt_clear_taskmgmt_in_progress_flag(ioc); + goto out; + } + } + + wait_for_completion_timeout(&ioc->taskmgmt_cmds.done, + timeout*HZ); + if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { + retval = FAILED; + dtmprintk(ioc, printk(MYIOC_s_ERR_FMT + "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf)); + mpt_clear_taskmgmt_in_progress_flag(ioc); + if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) + goto out; + issue_hard_reset = 1; + goto out; + } + + retval = mptscsih_taskmgmt_reply(ioc, type, + (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply); + + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "TaskMgmt completed (%d seconds)\n", + ioc->name, jiffies_to_msecs(jiffies - time_count)/1000)); + + out: + + CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status) + if (issue_hard_reset) { + printk(MYIOC_s_WARN_FMT + "Issuing Reset from %s!! doorbell=0x%08x\n", + ioc->name, __func__, mpt_GetIocState(ioc, 0)); + retval = (ioc->bus_type == SAS) ? + mpt_HardResetHandler(ioc, CAN_SLEEP) : + mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); + mpt_free_msg_frame(ioc, mf); + } + + retval = (retval == 0) ? 0 : FAILED; + mutex_unlock(&ioc->taskmgmt_cmds.mutex); + return retval; +} +EXPORT_SYMBOL(mptscsih_IssueTaskMgmt); + +static int +mptscsih_get_tm_timeout(MPT_ADAPTER *ioc) +{ + switch (ioc->bus_type) { + case FC: + return 40; + case SAS: + return 30; + case SPI: + default: + return 10; + } +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant + * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted + * + * (linux scsi_host_template.eh_abort_handler routine) + * + * Returns SUCCESS or FAILED. + **/ +int +mptscsih_abort(struct scsi_cmnd * SCpnt) +{ + MPT_SCSI_HOST *hd; + MPT_FRAME_HDR *mf; + u32 ctx2abort; + int scpnt_idx; + int retval; + VirtDevice *vdevice; + MPT_ADAPTER *ioc; + + /* If we can't locate our host adapter structure, return FAILED status. + */ + if ((hd = shost_priv(SCpnt->device->host)) == NULL) { + SCpnt->result = DID_RESET << 16; + scsi_done(SCpnt); + printk(KERN_ERR MYNAM ": task abort: " + "can't locate host! (sc=%p)\n", SCpnt); + return FAILED; + } + + ioc = hd->ioc; + printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n", + ioc->name, SCpnt); + scsi_print_command(SCpnt); + + vdevice = SCpnt->device->hostdata; + if (!vdevice || !vdevice->vtarget) { + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "task abort: device has been deleted (sc=%p)\n", + ioc->name, SCpnt)); + SCpnt->result = DID_NO_CONNECT << 16; + scsi_done(SCpnt); + retval = SUCCESS; + goto out; + } + + /* Task aborts are not supported for hidden raid components. + */ + if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "task abort: hidden raid component (sc=%p)\n", + ioc->name, SCpnt)); + SCpnt->result = DID_RESET << 16; + retval = FAILED; + goto out; + } + + /* Task aborts are not supported for volumes. + */ + if (vdevice->vtarget->raidVolume) { + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "task abort: raid volume (sc=%p)\n", + ioc->name, SCpnt)); + SCpnt->result = DID_RESET << 16; + retval = FAILED; + goto out; + } + + /* Find this command + */ + if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) { + /* Cmd not found in ScsiLookup. + * Do OS callback. + */ + SCpnt->result = DID_RESET << 16; + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: " + "Command not in the active list! (sc=%p)\n", ioc->name, + SCpnt)); + retval = SUCCESS; + goto out; + } + + if (ioc->timeouts < -1) + ioc->timeouts++; + + if (mpt_fwfault_debug) + mpt_halt_firmware(ioc); + + /* Most important! Set TaskMsgContext to SCpnt's MsgContext! + * (the IO to be ABORT'd) + * + * NOTE: Since we do not byteswap MsgContext, we do not + * swap it here either. It is an opaque cookie to + * the controller, so it does not matter. -DaveM + */ + mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx); + ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext; + retval = mptscsih_IssueTaskMgmt(hd, + MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK, + vdevice->vtarget->channel, + vdevice->vtarget->id, vdevice->lun, + ctx2abort, mptscsih_get_tm_timeout(ioc)); + + if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) { + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "task abort: command still in active list! (sc=%p)\n", + ioc->name, SCpnt)); + retval = FAILED; + } else { + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "task abort: command cleared from active list! (sc=%p)\n", + ioc->name, SCpnt)); + retval = SUCCESS; + } + + out: + printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n", + ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval, + SCpnt); + + return retval; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant + * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to + * + * (linux scsi_host_template.eh_dev_reset_handler routine) + * + * Returns SUCCESS or FAILED. + **/ +int +mptscsih_dev_reset(struct scsi_cmnd * SCpnt) +{ + MPT_SCSI_HOST *hd; + int retval; + VirtDevice *vdevice; + MPT_ADAPTER *ioc; + + /* If we can't locate our host adapter structure, return FAILED status. + */ + if ((hd = shost_priv(SCpnt->device->host)) == NULL){ + printk(KERN_ERR MYNAM ": target reset: " + "Can't locate host! (sc=%p)\n", SCpnt); + return FAILED; + } + + ioc = hd->ioc; + printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n", + ioc->name, SCpnt); + scsi_print_command(SCpnt); + + vdevice = SCpnt->device->hostdata; + if (!vdevice || !vdevice->vtarget) { + retval = 0; + goto out; + } + + /* Target reset to hidden raid component is not supported + */ + if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { + retval = FAILED; + goto out; + } + + retval = mptscsih_IssueTaskMgmt(hd, + MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET, + vdevice->vtarget->channel, + vdevice->vtarget->id, 0, 0, + mptscsih_get_tm_timeout(ioc)); + + out: + printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n", + ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); + + if (retval == 0) + return SUCCESS; + else + return FAILED; +} + + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant + * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to + * + * (linux scsi_host_template.eh_bus_reset_handler routine) + * + * Returns SUCCESS or FAILED. + **/ +int +mptscsih_bus_reset(struct scsi_cmnd * SCpnt) +{ + MPT_SCSI_HOST *hd; + int retval; + VirtDevice *vdevice; + MPT_ADAPTER *ioc; + + /* If we can't locate our host adapter structure, return FAILED status. + */ + if ((hd = shost_priv(SCpnt->device->host)) == NULL){ + printk(KERN_ERR MYNAM ": bus reset: " + "Can't locate host! (sc=%p)\n", SCpnt); + return FAILED; + } + + ioc = hd->ioc; + printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n", + ioc->name, SCpnt); + scsi_print_command(SCpnt); + + if (ioc->timeouts < -1) + ioc->timeouts++; + + vdevice = SCpnt->device->hostdata; + if (!vdevice || !vdevice->vtarget) + return SUCCESS; + retval = mptscsih_IssueTaskMgmt(hd, + MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS, + vdevice->vtarget->channel, 0, 0, 0, + mptscsih_get_tm_timeout(ioc)); + + printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n", + ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); + + if (retval == 0) + return SUCCESS; + else + return FAILED; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant) + * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to + * + * (linux scsi_host_template.eh_host_reset_handler routine) + * + * Returns SUCCESS or FAILED. + */ +int +mptscsih_host_reset(struct scsi_cmnd *SCpnt) +{ + MPT_SCSI_HOST * hd; + int status = SUCCESS; + MPT_ADAPTER *ioc; + int retval; + + /* If we can't locate the host to reset, then we failed. */ + if ((hd = shost_priv(SCpnt->device->host)) == NULL){ + printk(KERN_ERR MYNAM ": host reset: " + "Can't locate host! (sc=%p)\n", SCpnt); + return FAILED; + } + + /* make sure we have no outstanding commands at this stage */ + mptscsih_flush_running_cmds(hd); + + ioc = hd->ioc; + printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n", + ioc->name, SCpnt); + + /* If our attempts to reset the host failed, then return a failed + * status. The host will be taken off line by the SCSI mid-layer. + */ + retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); + if (retval < 0) + status = FAILED; + else + status = SUCCESS; + + printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n", + ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); + + return status; +} + +static int +mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type, + SCSITaskMgmtReply_t *pScsiTmReply) +{ + u16 iocstatus; + u32 termination_count; + int retval; + + if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) { + retval = FAILED; + goto out; + } + + DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply); + + iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK; + termination_count = le32_to_cpu(pScsiTmReply->TerminationCount); + + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n" + "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n" + "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus, + pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus), + le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode, + termination_count)); + + if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 && + pScsiTmReply->ResponseCode) + mptscsih_taskmgmt_response_code(ioc, + pScsiTmReply->ResponseCode); + + if (iocstatus == MPI_IOCSTATUS_SUCCESS) { + retval = 0; + goto out; + } + + retval = FAILED; + if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) { + if (termination_count == 1) + retval = 0; + goto out; + } + + if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED || + iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED) + retval = 0; + + out: + return retval; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +void +mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code) +{ + char *desc; + + switch (response_code) { + case MPI_SCSITASKMGMT_RSP_TM_COMPLETE: + desc = "The task completed."; + break; + case MPI_SCSITASKMGMT_RSP_INVALID_FRAME: + desc = "The IOC received an invalid frame status."; + break; + case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED: + desc = "The task type is not supported."; + break; + case MPI_SCSITASKMGMT_RSP_TM_FAILED: + desc = "The requested task failed."; + break; + case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED: + desc = "The task completed successfully."; + break; + case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN: + desc = "The LUN request is invalid."; + break; + case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC: + desc = "The task is in the IOC queue and has not been sent to target."; + break; + default: + desc = "unknown"; + break; + } + printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n", + ioc->name, response_code, desc); +} +EXPORT_SYMBOL(mptscsih_taskmgmt_response_code); + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver + * @ioc: Pointer to MPT_ADAPTER structure + * @mf: Pointer to SCSI task mgmt request frame + * @mr: Pointer to SCSI task mgmt reply frame + * + * This routine is called from mptbase.c::mpt_interrupt() at the completion + * of any SCSI task management request. + * This routine is registered with the MPT (base) driver at driver + * load/init time via the mpt_register() API call. + * + * Returns 1 indicating alloc'd request frame ptr should be freed. + **/ +int +mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, + MPT_FRAME_HDR *mr) +{ + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr)); + + ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD; + + if (!mr) + goto out; + + ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID; + memcpy(ioc->taskmgmt_cmds.reply, mr, + min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength)); + out: + if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) { + mpt_clear_taskmgmt_in_progress_flag(ioc); + ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING; + complete(&ioc->taskmgmt_cmds.done); + if (ioc->bus_type == SAS) + ioc->schedule_target_reset(ioc); + return 1; + } + return 0; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * This is anyones guess quite frankly. + */ +int +mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev, + sector_t capacity, int geom[]) +{ + int heads; + int sectors; + sector_t cylinders; + ulong dummy; + + heads = 64; + sectors = 32; + + dummy = heads * sectors; + cylinders = capacity; + sector_div(cylinders,dummy); + + /* + * Handle extended translation size for logical drives + * > 1Gb + */ + if ((ulong)capacity >= 0x200000) { + heads = 255; + sectors = 63; + dummy = heads * sectors; + cylinders = capacity; + sector_div(cylinders,dummy); + } + + /* return result */ + geom[0] = heads; + geom[1] = sectors; + geom[2] = cylinders; + + return 0; +} + +/* Search IOC page 3 to determine if this is hidden physical disk + * + */ +int +mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id) +{ + struct inactive_raid_component_info *component_info; + int i, j; + RaidPhysDiskPage1_t *phys_disk; + int rc = 0; + int num_paths; + + if (!ioc->raid_data.pIocPg3) + goto out; + for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { + if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && + (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { + rc = 1; + goto out; + } + } + + if (ioc->bus_type != SAS) + goto out; + + /* + * Check if dual path + */ + for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { + num_paths = mpt_raid_phys_disk_get_num_paths(ioc, + ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); + if (num_paths < 2) + continue; + phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) + + (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL); + if (!phys_disk) + continue; + if ((mpt_raid_phys_disk_pg1(ioc, + ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, + phys_disk))) { + kfree(phys_disk); + continue; + } + for (j = 0; j < num_paths; j++) { + if ((phys_disk->Path[j].Flags & + MPI_RAID_PHYSDISK1_FLAG_INVALID)) + continue; + if ((phys_disk->Path[j].Flags & + MPI_RAID_PHYSDISK1_FLAG_BROKEN)) + continue; + if ((id == phys_disk->Path[j].PhysDiskID) && + (channel == phys_disk->Path[j].PhysDiskBus)) { + rc = 1; + kfree(phys_disk); + goto out; + } + } + kfree(phys_disk); + } + + + /* + * Check inactive list for matching phys disks + */ + if (list_empty(&ioc->raid_data.inactive_list)) + goto out; + + mutex_lock(&ioc->raid_data.inactive_list_mutex); + list_for_each_entry(component_info, &ioc->raid_data.inactive_list, + list) { + if ((component_info->d.PhysDiskID == id) && + (component_info->d.PhysDiskBus == channel)) + rc = 1; + } + mutex_unlock(&ioc->raid_data.inactive_list_mutex); + + out: + return rc; +} +EXPORT_SYMBOL(mptscsih_is_phys_disk); + +u8 +mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id) +{ + struct inactive_raid_component_info *component_info; + int i, j; + RaidPhysDiskPage1_t *phys_disk; + int rc = -ENXIO; + int num_paths; + + if (!ioc->raid_data.pIocPg3) + goto out; + for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { + if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && + (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { + rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum; + goto out; + } + } + + if (ioc->bus_type != SAS) + goto out; + + /* + * Check if dual path + */ + for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { + num_paths = mpt_raid_phys_disk_get_num_paths(ioc, + ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); + if (num_paths < 2) + continue; + phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) + + (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL); + if (!phys_disk) + continue; + if ((mpt_raid_phys_disk_pg1(ioc, + ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, + phys_disk))) { + kfree(phys_disk); + continue; + } + for (j = 0; j < num_paths; j++) { + if ((phys_disk->Path[j].Flags & + MPI_RAID_PHYSDISK1_FLAG_INVALID)) + continue; + if ((phys_disk->Path[j].Flags & + MPI_RAID_PHYSDISK1_FLAG_BROKEN)) + continue; + if ((id == phys_disk->Path[j].PhysDiskID) && + (channel == phys_disk->Path[j].PhysDiskBus)) { + rc = phys_disk->PhysDiskNum; + kfree(phys_disk); + goto out; + } + } + kfree(phys_disk); + } + + /* + * Check inactive list for matching phys disks + */ + if (list_empty(&ioc->raid_data.inactive_list)) + goto out; + + mutex_lock(&ioc->raid_data.inactive_list_mutex); + list_for_each_entry(component_info, &ioc->raid_data.inactive_list, + list) { + if ((component_info->d.PhysDiskID == id) && + (component_info->d.PhysDiskBus == channel)) + rc = component_info->d.PhysDiskNum; + } + mutex_unlock(&ioc->raid_data.inactive_list_mutex); + + out: + return rc; +} +EXPORT_SYMBOL(mptscsih_raid_id_to_num); + +/* + * OS entry point to allow for host driver to free allocated memory + * Called if no device present or device being unloaded + */ +void +mptscsih_slave_destroy(struct scsi_device *sdev) +{ + struct Scsi_Host *host = sdev->host; + MPT_SCSI_HOST *hd = shost_priv(host); + VirtTarget *vtarget; + VirtDevice *vdevice; + struct scsi_target *starget; + + starget = scsi_target(sdev); + vtarget = starget->hostdata; + vdevice = sdev->hostdata; + if (!vdevice) + return; + + mptscsih_search_running_cmds(hd, vdevice); + vtarget->num_luns--; + mptscsih_synchronize_cache(hd, vdevice); + kfree(vdevice); + sdev->hostdata = NULL; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_change_queue_depth - This function will set a devices queue depth + * @sdev: per scsi_device pointer + * @qdepth: requested queue depth + * + * Adding support for new 'change_queue_depth' api. +*/ +int +mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth) +{ + MPT_SCSI_HOST *hd = shost_priv(sdev->host); + VirtTarget *vtarget; + struct scsi_target *starget; + int max_depth; + MPT_ADAPTER *ioc = hd->ioc; + + starget = scsi_target(sdev); + vtarget = starget->hostdata; + + if (ioc->bus_type == SPI) { + if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)) + max_depth = 1; + else if (sdev->type == TYPE_DISK && + vtarget->minSyncFactor <= MPT_ULTRA160) + max_depth = MPT_SCSI_CMD_PER_DEV_HIGH; + else + max_depth = MPT_SCSI_CMD_PER_DEV_LOW; + } else + max_depth = ioc->sh->can_queue; + + if (!sdev->tagged_supported) + max_depth = 1; + + if (qdepth > max_depth) + qdepth = max_depth; + + return scsi_change_queue_depth(sdev, qdepth); +} + +/* + * OS entry point to adjust the queue_depths on a per-device basis. + * Called once per device the bus scan. Use it to force the queue_depth + * member to 1 if a device does not support Q tags. + * Return non-zero if fails. + */ +int +mptscsih_slave_configure(struct scsi_device *sdev) +{ + struct Scsi_Host *sh = sdev->host; + VirtTarget *vtarget; + VirtDevice *vdevice; + struct scsi_target *starget; + MPT_SCSI_HOST *hd = shost_priv(sh); + MPT_ADAPTER *ioc = hd->ioc; + + starget = scsi_target(sdev); + vtarget = starget->hostdata; + vdevice = sdev->hostdata; + + dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "device @ %p, channel=%d, id=%d, lun=%llu\n", + ioc->name, sdev, sdev->channel, sdev->id, sdev->lun)); + if (ioc->bus_type == SPI) + dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "sdtr %d wdtr %d ppr %d inq length=%d\n", + ioc->name, sdev->sdtr, sdev->wdtr, + sdev->ppr, sdev->inquiry_len)); + + vdevice->configured_lun = 1; + + dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "Queue depth=%d, tflags=%x\n", + ioc->name, sdev->queue_depth, vtarget->tflags)); + + if (ioc->bus_type == SPI) + dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n", + ioc->name, vtarget->negoFlags, vtarget->maxOffset, + vtarget->minSyncFactor)); + + mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH); + dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "tagged %d, simple %d\n", + ioc->name,sdev->tagged_supported, sdev->simple_tags)); + + blk_queue_dma_alignment (sdev->request_queue, 512 - 1); + + return 0; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * Private routines... + */ + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* Utility function to copy sense data from the scsi_cmnd buffer + * to the FC and SCSI target structures. + * + */ +static void +mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply) +{ + VirtDevice *vdevice; + SCSIIORequest_t *pReq; + u32 sense_count = le32_to_cpu(pScsiReply->SenseCount); + MPT_ADAPTER *ioc = hd->ioc; + + /* Get target structure + */ + pReq = (SCSIIORequest_t *) mf; + vdevice = sc->device->hostdata; + + if (sense_count) { + u8 *sense_data; + int req_index; + + /* Copy the sense received into the scsi command block. */ + req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); + sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC)); + memcpy(sc->sense_buffer, sense_data, MPT_SENSE_BUFFER_ALLOC); + + /* Log SMART data (asc = 0x5D, non-IM case only) if required. + */ + if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) { + if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) { + int idx; + + idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE; + ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE; + ioc->events[idx].eventContext = ioc->eventContext; + + ioc->events[idx].data[0] = (pReq->LUN[1] << 24) | + (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) | + (sc->device->channel << 8) | sc->device->id; + + ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12]; + + ioc->eventContext++; + if (ioc->pcidev->vendor == + PCI_VENDOR_ID_IBM) { + mptscsih_issue_sep_command(ioc, + vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT); + vdevice->vtarget->tflags |= + MPT_TARGET_FLAGS_LED_ON; + } + } + } + } else { + dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n", + ioc->name)); + } +} + +/** + * mptscsih_get_scsi_lookup - retrieves scmd entry + * @ioc: Pointer to MPT_ADAPTER structure + * @i: index into the array + * + * Returns the scsi_cmd pointer + */ +struct scsi_cmnd * +mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i) +{ + unsigned long flags; + struct scsi_cmnd *scmd; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + scmd = ioc->ScsiLookup[i]; + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + + return scmd; +} +EXPORT_SYMBOL(mptscsih_get_scsi_lookup); + +/** + * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list + * @ioc: Pointer to MPT_ADAPTER structure + * @i: index into the array + * + * Returns the scsi_cmd pointer + * + **/ +static struct scsi_cmnd * +mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i) +{ + unsigned long flags; + struct scsi_cmnd *scmd; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + scmd = ioc->ScsiLookup[i]; + ioc->ScsiLookup[i] = NULL; + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + + return scmd; +} + +/** + * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list + * + * @ioc: Pointer to MPT_ADAPTER structure + * @i: index into the array + * @scmd: scsi_cmnd pointer + * + **/ +static void +mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd) +{ + unsigned long flags; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + ioc->ScsiLookup[i] = scmd; + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); +} + +/** + * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list + * @ioc: Pointer to MPT_ADAPTER structure + * @sc: scsi_cmnd pointer + */ +static int +SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc) +{ + unsigned long flags; + int i, index=-1; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + for (i = 0; i < ioc->req_depth; i++) { + if (ioc->ScsiLookup[i] == sc) { + index = i; + goto out; + } + } + + out: + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + return index; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +int +mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) +{ + MPT_SCSI_HOST *hd; + + if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL) + return 0; + + hd = shost_priv(ioc->sh); + switch (reset_phase) { + case MPT_IOC_SETUP_RESET: + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__)); + break; + case MPT_IOC_PRE_RESET: + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__)); + mptscsih_flush_running_cmds(hd); + break; + case MPT_IOC_POST_RESET: + dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__)); + if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) { + ioc->internal_cmds.status |= + MPT_MGMT_STATUS_DID_IOCRESET; + complete(&ioc->internal_cmds.done); + } + break; + default: + break; + } + return 1; /* currently means nothing really */ +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +int +mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) +{ + u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; + + devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "MPT event (=%02Xh) routed to SCSI host driver!\n", + ioc->name, event)); + + if ((event == MPI_EVENT_IOC_BUS_RESET || + event == MPI_EVENT_EXT_BUS_RESET) && + (ioc->bus_type == SPI) && (ioc->soft_resets < -1)) + ioc->soft_resets++; + + return 1; /* currently means nothing really */ +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * Bus Scan and Domain Validation functionality ... + */ + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptscsih_scandv_complete - Scan and DV callback routine registered + * to Fustion MPT (base) driver. + * + * @ioc: Pointer to MPT_ADAPTER structure + * @mf: Pointer to original MPT request frame + * @mr: Pointer to MPT reply frame (NULL if TurboReply) + * + * This routine is called from mpt.c::mpt_interrupt() at the completion + * of any SCSI IO request. + * This routine is registered with the Fusion MPT (base) driver at driver + * load/init time via the mpt_register() API call. + * + * Returns 1 indicating alloc'd request frame ptr should be freed. + * + * Remark: Sets a completion code and (possibly) saves sense data + * in the IOC member localReply structure. + * Used ONLY for DV and other internal commands. + */ +int +mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, + MPT_FRAME_HDR *reply) +{ + SCSIIORequest_t *pReq; + SCSIIOReply_t *pReply; + u8 cmd; + u16 req_idx; + u8 *sense_data; + int sz; + + ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD; + ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD; + if (!reply) + goto out; + + pReply = (SCSIIOReply_t *) reply; + pReq = (SCSIIORequest_t *) req; + ioc->internal_cmds.completion_code = + mptscsih_get_completion_code(ioc, req, reply); + ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID; + memcpy(ioc->internal_cmds.reply, reply, + min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength)); + cmd = reply->u.hdr.Function; + if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) || + (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) && + (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) { + req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx); + sense_data = ((u8 *)ioc->sense_buf_pool + + (req_idx * MPT_SENSE_BUFFER_ALLOC)); + sz = min_t(int, pReq->SenseBufferLength, + MPT_SENSE_BUFFER_ALLOC); + memcpy(ioc->internal_cmds.sense, sense_data, sz); + } + out: + if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING)) + return 0; + ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING; + complete(&ioc->internal_cmds.done); + return 1; +} + + +/** + * mptscsih_get_completion_code - get completion code from MPT request + * @ioc: Pointer to MPT_ADAPTER structure + * @req: Pointer to original MPT request frame + * @reply: Pointer to MPT reply frame (NULL if TurboReply) + * + **/ +static int +mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, + MPT_FRAME_HDR *reply) +{ + SCSIIOReply_t *pReply; + MpiRaidActionReply_t *pr; + u8 scsi_status; + u16 status; + int completion_code; + + pReply = (SCSIIOReply_t *)reply; + status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK; + scsi_status = pReply->SCSIStatus; + + devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh," + "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState, + scsi_status, le32_to_cpu(pReply->IOCLogInfo))); + + switch (status) { + + case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */ + completion_code = MPT_SCANDV_SELECTION_TIMEOUT; + break; + + case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */ + case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */ + case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */ + case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */ + completion_code = MPT_SCANDV_DID_RESET; + break; + + case MPI_IOCSTATUS_BUSY: + case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: + completion_code = MPT_SCANDV_BUSY; + break; + + case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */ + case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */ + case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */ + if (pReply->Function == MPI_FUNCTION_CONFIG) { + completion_code = MPT_SCANDV_GOOD; + } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) { + pr = (MpiRaidActionReply_t *)reply; + if (le16_to_cpu(pr->ActionStatus) == + MPI_RAID_ACTION_ASTATUS_SUCCESS) + completion_code = MPT_SCANDV_GOOD; + else + completion_code = MPT_SCANDV_SOME_ERROR; + } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) + completion_code = MPT_SCANDV_SENSE; + else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) { + if (req->u.scsireq.CDB[0] == INQUIRY) + completion_code = MPT_SCANDV_ISSUE_SENSE; + else + completion_code = MPT_SCANDV_DID_RESET; + } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS) + completion_code = MPT_SCANDV_DID_RESET; + else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED) + completion_code = MPT_SCANDV_DID_RESET; + else if (scsi_status == MPI_SCSI_STATUS_BUSY) + completion_code = MPT_SCANDV_BUSY; + else + completion_code = MPT_SCANDV_GOOD; + break; + + case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */ + if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED) + completion_code = MPT_SCANDV_DID_RESET; + else + completion_code = MPT_SCANDV_SOME_ERROR; + break; + default: + completion_code = MPT_SCANDV_SOME_ERROR; + break; + + } /* switch(status) */ + + devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT + " completionCode set to %08xh\n", ioc->name, completion_code)); + return completion_code; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_do_cmd - Do internal command. + * @hd: MPT_SCSI_HOST pointer + * @io: INTERNAL_CMD pointer. + * + * Issue the specified internally generated command and do command + * specific cleanup. For bus scan / DV only. + * NOTES: If command is Inquiry and status is good, + * initialize a target structure, save the data + * + * Remark: Single threaded access only. + * + * Return: + * < 0 if an illegal command or no resources + * + * 0 if good + * + * > 0 if command complete but some type of completion error. + */ +static int +mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io) +{ + MPT_FRAME_HDR *mf; + SCSIIORequest_t *pScsiReq; + int my_idx, ii, dir; + int timeout; + char cmdLen; + char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; + u8 cmd = io->cmd; + MPT_ADAPTER *ioc = hd->ioc; + int ret = 0; + unsigned long timeleft; + unsigned long flags; + + /* don't send internal command during diag reset */ + spin_lock_irqsave(&ioc->taskmgmt_lock, flags); + if (ioc->ioc_reset_in_progress) { + spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); + dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "%s: busy with host reset\n", ioc->name, __func__)); + return MPT_SCANDV_BUSY; + } + spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); + + mutex_lock(&ioc->internal_cmds.mutex); + + /* Set command specific information + */ + switch (cmd) { + case INQUIRY: + cmdLen = 6; + dir = MPI_SCSIIO_CONTROL_READ; + CDB[0] = cmd; + CDB[4] = io->size; + timeout = 10; + break; + + case TEST_UNIT_READY: + cmdLen = 6; + dir = MPI_SCSIIO_CONTROL_READ; + timeout = 10; + break; + + case START_STOP: + cmdLen = 6; + dir = MPI_SCSIIO_CONTROL_READ; + CDB[0] = cmd; + CDB[4] = 1; /*Spin up the disk */ + timeout = 15; + break; + + case REQUEST_SENSE: + cmdLen = 6; + CDB[0] = cmd; + CDB[4] = io->size; + dir = MPI_SCSIIO_CONTROL_READ; + timeout = 10; + break; + + case READ_BUFFER: + cmdLen = 10; + dir = MPI_SCSIIO_CONTROL_READ; + CDB[0] = cmd; + if (io->flags & MPT_ICFLAG_ECHO) { + CDB[1] = 0x0A; + } else { + CDB[1] = 0x02; + } + + if (io->flags & MPT_ICFLAG_BUF_CAP) { + CDB[1] |= 0x01; + } + CDB[6] = (io->size >> 16) & 0xFF; + CDB[7] = (io->size >> 8) & 0xFF; + CDB[8] = io->size & 0xFF; + timeout = 10; + break; + + case WRITE_BUFFER: + cmdLen = 10; + dir = MPI_SCSIIO_CONTROL_WRITE; + CDB[0] = cmd; + if (io->flags & MPT_ICFLAG_ECHO) { + CDB[1] = 0x0A; + } else { + CDB[1] = 0x02; + } + CDB[6] = (io->size >> 16) & 0xFF; + CDB[7] = (io->size >> 8) & 0xFF; + CDB[8] = io->size & 0xFF; + timeout = 10; + break; + + case RESERVE: + cmdLen = 6; + dir = MPI_SCSIIO_CONTROL_READ; + CDB[0] = cmd; + timeout = 10; + break; + + case RELEASE: + cmdLen = 6; + dir = MPI_SCSIIO_CONTROL_READ; + CDB[0] = cmd; + timeout = 10; + break; + + case SYNCHRONIZE_CACHE: + cmdLen = 10; + dir = MPI_SCSIIO_CONTROL_READ; + CDB[0] = cmd; +// CDB[1] = 0x02; /* set immediate bit */ + timeout = 10; + break; + + default: + /* Error Case */ + ret = -EFAULT; + goto out; + } + + /* Get and Populate a free Frame + * MsgContext set in mpt_get_msg_frame call + */ + if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { + dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n", + ioc->name, __func__)); + ret = MPT_SCANDV_BUSY; + goto out; + } + + pScsiReq = (SCSIIORequest_t *) mf; + + /* Get the request index */ + my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); + ADD_INDEX_LOG(my_idx); /* for debug */ + + if (io->flags & MPT_ICFLAG_PHYS_DISK) { + pScsiReq->TargetID = io->physDiskNum; + pScsiReq->Bus = 0; + pScsiReq->ChainOffset = 0; + pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH; + } else { + pScsiReq->TargetID = io->id; + pScsiReq->Bus = io->channel; + pScsiReq->ChainOffset = 0; + pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST; + } + + pScsiReq->CDBLength = cmdLen; + pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE; + + pScsiReq->Reserved = 0; + + pScsiReq->MsgFlags = mpt_msg_flags(ioc); + /* MsgContext set in mpt_get_msg_fram call */ + + int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN); + + if (io->flags & MPT_ICFLAG_TAGGED_CMD) + pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ); + else + pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED); + + if (cmd == REQUEST_SENSE) { + pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED); + devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd)); + } + + for (ii = 0; ii < 16; ii++) + pScsiReq->CDB[ii] = CDB[ii]; + + pScsiReq->DataLength = cpu_to_le32(io->size); + pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma + + (my_idx * MPT_SENSE_BUFFER_ALLOC)); + + devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%llu\n", + ioc->name, __func__, cmd, io->channel, io->id, io->lun)); + + if (dir == MPI_SCSIIO_CONTROL_READ) + ioc->add_sge((char *) &pScsiReq->SGL, + MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma); + else + ioc->add_sge((char *) &pScsiReq->SGL, + MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma); + + INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status) + mpt_put_msg_frame(ioc->InternalCtx, ioc, mf); + timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, + timeout*HZ); + if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { + ret = MPT_SCANDV_DID_RESET; + dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__, + cmd)); + if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) { + mpt_free_msg_frame(ioc, mf); + goto out; + } + if (!timeleft) { + printk(MYIOC_s_WARN_FMT + "Issuing Reset from %s!! doorbell=0x%08xh" + " cmd=0x%02x\n", + ioc->name, __func__, mpt_GetIocState(ioc, 0), + cmd); + mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); + mpt_free_msg_frame(ioc, mf); + } + goto out; + } + + ret = ioc->internal_cmds.completion_code; + devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n", + ioc->name, __func__, ret)); + + out: + CLEAR_MGMT_STATUS(ioc->internal_cmds.status) + mutex_unlock(&ioc->internal_cmds.mutex); + return ret; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks. + * @hd: Pointer to a SCSI HOST structure + * @vdevice: virtual target device + * + * Uses the ISR, but with special processing. + * MUST be single-threaded. + * + */ +static void +mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice) +{ + INTERNAL_CMD iocmd; + + /* Ignore hidden raid components, this is handled when the command + * is sent to the volume + */ + if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) + return; + + if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted || + !vdevice->configured_lun) + return; + + /* Following parameters will not change + * in this routine. + */ + iocmd.cmd = SYNCHRONIZE_CACHE; + iocmd.flags = 0; + iocmd.physDiskNum = -1; + iocmd.data = NULL; + iocmd.data_dma = -1; + iocmd.size = 0; + iocmd.rsvd = iocmd.rsvd2 = 0; + iocmd.channel = vdevice->vtarget->channel; + iocmd.id = vdevice->vtarget->id; + iocmd.lun = vdevice->lun; + + mptscsih_do_cmd(hd, &iocmd); +} + +static ssize_t +mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", + (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, + (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, + (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, + ioc->facts.FWVersion.Word & 0x000000FF); +} +static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL); + +static ssize_t +mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", + (ioc->biosVersion & 0xFF000000) >> 24, + (ioc->biosVersion & 0x00FF0000) >> 16, + (ioc->biosVersion & 0x0000FF00) >> 8, + ioc->biosVersion & 0x000000FF); +} +static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL); + +static ssize_t +mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion); +} +static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL); + +static ssize_t +mptscsih_version_product_show(struct device *dev, + struct device_attribute *attr, +char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name); +} +static DEVICE_ATTR(version_product, S_IRUGO, + mptscsih_version_product_show, NULL); + +static ssize_t +mptscsih_version_nvdata_persistent_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%02xh\n", + ioc->nvdata_version_persistent); +} +static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO, + mptscsih_version_nvdata_persistent_show, NULL); + +static ssize_t +mptscsih_version_nvdata_default_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default); +} +static DEVICE_ATTR(version_nvdata_default, S_IRUGO, + mptscsih_version_nvdata_default_show, NULL); + +static ssize_t +mptscsih_board_name_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name); +} +static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL); + +static ssize_t +mptscsih_board_assembly_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly); +} +static DEVICE_ATTR(board_assembly, S_IRUGO, + mptscsih_board_assembly_show, NULL); + +static ssize_t +mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer); +} +static DEVICE_ATTR(board_tracer, S_IRUGO, + mptscsih_board_tracer_show, NULL); + +static ssize_t +mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); +} +static DEVICE_ATTR(io_delay, S_IRUGO, + mptscsih_io_delay_show, NULL); + +static ssize_t +mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); +} +static DEVICE_ATTR(device_delay, S_IRUGO, + mptscsih_device_delay_show, NULL); + +static ssize_t +mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + + return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level); +} +static ssize_t +mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *host = class_to_shost(dev); + MPT_SCSI_HOST *hd = shost_priv(host); + MPT_ADAPTER *ioc = hd->ioc; + int val = 0; + + if (sscanf(buf, "%x", &val) != 1) + return -EINVAL; + + ioc->debug_level = val; + printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n", + ioc->name, ioc->debug_level); + return strlen(buf); +} +static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR, + mptscsih_debug_level_show, mptscsih_debug_level_store); + +static struct attribute *mptscsih_host_attrs[] = { + &dev_attr_version_fw.attr, + &dev_attr_version_bios.attr, + &dev_attr_version_mpi.attr, + &dev_attr_version_product.attr, + &dev_attr_version_nvdata_persistent.attr, + &dev_attr_version_nvdata_default.attr, + &dev_attr_board_name.attr, + &dev_attr_board_assembly.attr, + &dev_attr_board_tracer.attr, + &dev_attr_io_delay.attr, + &dev_attr_device_delay.attr, + &dev_attr_debug_level.attr, + NULL, +}; + +static const struct attribute_group mptscsih_host_attr_group = { + .attrs = mptscsih_host_attrs +}; + +const struct attribute_group *mptscsih_host_attr_groups[] = { + &mptscsih_host_attr_group, + NULL +}; +EXPORT_SYMBOL(mptscsih_host_attr_groups); + +EXPORT_SYMBOL(mptscsih_remove); +EXPORT_SYMBOL(mptscsih_shutdown); +#ifdef CONFIG_PM +EXPORT_SYMBOL(mptscsih_suspend); +EXPORT_SYMBOL(mptscsih_resume); +#endif +EXPORT_SYMBOL(mptscsih_show_info); +EXPORT_SYMBOL(mptscsih_info); +EXPORT_SYMBOL(mptscsih_qcmd); +EXPORT_SYMBOL(mptscsih_slave_destroy); +EXPORT_SYMBOL(mptscsih_slave_configure); +EXPORT_SYMBOL(mptscsih_abort); +EXPORT_SYMBOL(mptscsih_dev_reset); +EXPORT_SYMBOL(mptscsih_bus_reset); +EXPORT_SYMBOL(mptscsih_host_reset); +EXPORT_SYMBOL(mptscsih_bios_param); +EXPORT_SYMBOL(mptscsih_io_done); +EXPORT_SYMBOL(mptscsih_taskmgmt_complete); +EXPORT_SYMBOL(mptscsih_scandv_complete); +EXPORT_SYMBOL(mptscsih_event_process); +EXPORT_SYMBOL(mptscsih_ioc_reset); +EXPORT_SYMBOL(mptscsih_change_queue_depth); + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |