diff options
Diffstat (limited to 'drivers/message/fusion/mptspi.c')
| -rw-r--r-- | drivers/message/fusion/mptspi.c | 1619 |
1 files changed, 1619 insertions, 0 deletions
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c new file mode 100644 index 000000000..62089a8ca --- /dev/null +++ b/drivers/message/fusion/mptspi.c @@ -0,0 +1,1619 @@ +/* + * linux/drivers/message/fusion/mptspi.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 <linux/raid_class.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_transport.h> +#include <scsi/scsi_transport_spi.h> +#include <scsi/scsi_dbg.h> + +#include "mptbase.h" +#include "mptscsih.h" + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +#define my_NAME "Fusion MPT SPI Host driver" +#define my_VERSION MPT_LINUX_VERSION_COMMON +#define MYNAM "mptspi" + +MODULE_AUTHOR(MODULEAUTHOR); +MODULE_DESCRIPTION(my_NAME); +MODULE_LICENSE("GPL"); +MODULE_VERSION(my_VERSION); + +/* Command line args */ +static int mpt_saf_te = MPTSCSIH_SAF_TE; +module_param(mpt_saf_te, int, 0); +MODULE_PARM_DESC(mpt_saf_te, " Force enabling SEP Processor: enable=1 (default=MPTSCSIH_SAF_TE=0)"); + +static void mptspi_write_offset(struct scsi_target *, int); +static void mptspi_write_width(struct scsi_target *, int); +static int mptspi_write_spi_device_pg1(struct scsi_target *, + struct _CONFIG_PAGE_SCSI_DEVICE_1 *); + +static struct scsi_transport_template *mptspi_transport_template = NULL; + +static u8 mptspiDoneCtx = MPT_MAX_PROTOCOL_DRIVERS; +static u8 mptspiTaskCtx = MPT_MAX_PROTOCOL_DRIVERS; +static u8 mptspiInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; /* Used only for internal commands */ + +/** + * mptspi_setTargetNegoParms - Update the target negotiation parameters + * @hd: Pointer to a SCSI Host Structure + * @target: per target private data + * @sdev: SCSI device + * + * Update the target negotiation parameters based on the Inquiry + * data, adapter capabilities, and NVRAM settings. + **/ +static void +mptspi_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtTarget *target, + struct scsi_device *sdev) +{ + MPT_ADAPTER *ioc = hd->ioc; + SpiCfgData *pspi_data = &ioc->spi_data; + int id = (int) target->id; + int nvram; + u8 width = MPT_NARROW; + u8 factor = MPT_ASYNC; + u8 offset = 0; + u8 nfactor; + u8 noQas = 1; + + target->negoFlags = pspi_data->noQas; + + if (sdev->scsi_level < SCSI_2) { + width = 0; + factor = MPT_ULTRA2; + offset = pspi_data->maxSyncOffset; + target->tflags &= ~MPT_TARGET_FLAGS_Q_YES; + } else { + if (scsi_device_wide(sdev)) + width = 1; + + if (scsi_device_sync(sdev)) { + factor = pspi_data->minSyncFactor; + if (!scsi_device_dt(sdev)) + factor = MPT_ULTRA2; + else { + if (!scsi_device_ius(sdev) && + !scsi_device_qas(sdev)) + factor = MPT_ULTRA160; + else { + factor = MPT_ULTRA320; + if (scsi_device_qas(sdev)) { + ddvprintk(ioc, + printk(MYIOC_s_DEBUG_FMT "Enabling QAS due to " + "byte56=%02x on id=%d!\n", ioc->name, + scsi_device_qas(sdev), id)); + noQas = 0; + } + if (sdev->type == TYPE_TAPE && + scsi_device_ius(sdev)) + target->negoFlags |= MPT_TAPE_NEGO_IDP; + } + } + offset = pspi_data->maxSyncOffset; + + /* If RAID, never disable QAS + * else if non RAID, do not disable + * QAS if bit 1 is set + * bit 1 QAS support, non-raid only + * bit 0 IU support + */ + if (target->raidVolume == 1) + noQas = 0; + } else { + factor = MPT_ASYNC; + offset = 0; + } + } + + if (!sdev->tagged_supported) + target->tflags &= ~MPT_TARGET_FLAGS_Q_YES; + + /* Update tflags based on NVRAM settings. (SCSI only) + */ + if (pspi_data->nvram && (pspi_data->nvram[id] != MPT_HOST_NVRAM_INVALID)) { + nvram = pspi_data->nvram[id]; + nfactor = (nvram & MPT_NVRAM_SYNC_MASK) >> 8; + + if (width) + width = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1; + + if (offset > 0) { + /* Ensure factor is set to the + * maximum of: adapter, nvram, inquiry + */ + if (nfactor) { + if (nfactor < pspi_data->minSyncFactor ) + nfactor = pspi_data->minSyncFactor; + + factor = max(factor, nfactor); + if (factor == MPT_ASYNC) + offset = 0; + } else { + offset = 0; + factor = MPT_ASYNC; + } + } else { + factor = MPT_ASYNC; + } + } + + /* Make sure data is consistent + */ + if ((!width) && (factor < MPT_ULTRA2)) + factor = MPT_ULTRA2; + + /* Save the data to the target structure. + */ + target->minSyncFactor = factor; + target->maxOffset = offset; + target->maxWidth = width; + + spi_min_period(scsi_target(sdev)) = factor; + spi_max_offset(scsi_target(sdev)) = offset; + spi_max_width(scsi_target(sdev)) = width; + + target->tflags |= MPT_TARGET_FLAGS_VALID_NEGO; + + /* Disable unused features. + */ + if (!width) + target->negoFlags |= MPT_TARGET_NO_NEGO_WIDE; + + if (!offset) + target->negoFlags |= MPT_TARGET_NO_NEGO_SYNC; + + if ( factor > MPT_ULTRA320 ) + noQas = 0; + + if (noQas && (pspi_data->noQas == 0)) { + pspi_data->noQas |= MPT_TARGET_NO_NEGO_QAS; + target->negoFlags |= MPT_TARGET_NO_NEGO_QAS; + + /* Disable QAS in a mixed configuration case + */ + + ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "Disabling QAS due to noQas=%02x on id=%d!\n", ioc->name, noQas, id)); + } +} + +/** + * mptspi_writeIOCPage4 - write IOC Page 4 + * @hd: Pointer to a SCSI Host Structure + * @channel: channel number + * @id: write IOC Page4 for this ID & Bus + * + * Return: -EAGAIN if unable to obtain a Message Frame + * or 0 if success. + * + * Remark: We do not wait for a return, write pages sequentially. + **/ +static int +mptspi_writeIOCPage4(MPT_SCSI_HOST *hd, u8 channel , u8 id) +{ + MPT_ADAPTER *ioc = hd->ioc; + Config_t *pReq; + IOCPage4_t *IOCPage4Ptr; + MPT_FRAME_HDR *mf; + dma_addr_t dataDma; + u32 flagsLength; + int ii; + + /* Get a MF for this command. + */ + if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) { + dfailprintk(ioc, printk(MYIOC_s_WARN_FMT + "writeIOCPage4 : no msg frames!\n",ioc->name)); + return -EAGAIN; + } + + /* Set the request and the data pointers. + * Place data at end of MF. + */ + pReq = (Config_t *)mf; + + /* Complete the request frame (same for all requests). + */ + pReq->Action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; + pReq->Reserved = 0; + pReq->ChainOffset = 0; + pReq->Function = MPI_FUNCTION_CONFIG; + pReq->ExtPageLength = 0; + pReq->ExtPageType = 0; + pReq->MsgFlags = 0; + for (ii=0; ii < 8; ii++) { + pReq->Reserved2[ii] = 0; + } + + IOCPage4Ptr = ioc->spi_data.pIocPg4; + dataDma = ioc->spi_data.IocPg4_dma; + ii = IOCPage4Ptr->ActiveSEP++; + IOCPage4Ptr->SEP[ii].SEPTargetID = id; + IOCPage4Ptr->SEP[ii].SEPBus = channel; + pReq->Header = IOCPage4Ptr->Header; + pReq->PageAddress = cpu_to_le32(id | (channel << 8 )); + + /* Add a SGE to the config request. + */ + flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE | + (IOCPage4Ptr->Header.PageLength + ii) * 4; + + ioc->add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma); + + ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "writeIOCPage4: MaxSEP=%d ActiveSEP=%d id=%d bus=%d\n", + ioc->name, IOCPage4Ptr->MaxSEP, IOCPage4Ptr->ActiveSEP, id, channel)); + + mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); + + return 0; +} + +/** + * mptspi_initTarget - Target, LUN alloc/free functionality. + * @hd: Pointer to MPT_SCSI_HOST structure + * @vtarget: per target private data + * @sdev: SCSI device + * + * NOTE: It's only SAFE to call this routine if data points to + * sane & valid STANDARD INQUIRY data! + * + * Allocate and initialize memory for this target. + * Save inquiry data. + * + **/ +static void +mptspi_initTarget(MPT_SCSI_HOST *hd, VirtTarget *vtarget, + struct scsi_device *sdev) +{ + + /* Is LUN supported? If so, upper 2 bits will be 0 + * in first byte of inquiry data. + */ + if (sdev->inq_periph_qual != 0) + return; + + if (vtarget == NULL) + return; + + vtarget->type = sdev->type; + + if ((sdev->type == TYPE_PROCESSOR) && (hd->ioc->spi_data.Saf_Te)) { + /* Treat all Processors as SAF-TE if + * command line option is set */ + vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED; + mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id); + }else if ((sdev->type == TYPE_PROCESSOR) && + !(vtarget->tflags & MPT_TARGET_FLAGS_SAF_TE_ISSUED )) { + if (sdev->inquiry_len > 49 ) { + if (sdev->inquiry[44] == 'S' && + sdev->inquiry[45] == 'A' && + sdev->inquiry[46] == 'F' && + sdev->inquiry[47] == '-' && + sdev->inquiry[48] == 'T' && + sdev->inquiry[49] == 'E' ) { + vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED; + mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id); + } + } + } + mptspi_setTargetNegoParms(hd, vtarget, sdev); +} + +/** + * mptspi_is_raid - Determines whether target is belonging to volume + * @hd: Pointer to a SCSI HOST structure + * @id: target device id + * + * Return: + * non-zero = true + * zero = false + * + */ +static int +mptspi_is_raid(struct _MPT_SCSI_HOST *hd, u32 id) +{ + int i, rc = 0; + MPT_ADAPTER *ioc = hd->ioc; + + if (!ioc->raid_data.pIocPg2) + goto out; + + if (!ioc->raid_data.pIocPg2->NumActiveVolumes) + goto out; + for (i=0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) { + if (ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == id) { + rc = 1; + goto out; + } + } + + out: + return rc; +} + +static int mptspi_target_alloc(struct scsi_target *starget) +{ + struct Scsi_Host *shost = dev_to_shost(&starget->dev); + struct _MPT_SCSI_HOST *hd = shost_priv(shost); + VirtTarget *vtarget; + MPT_ADAPTER *ioc; + + if (hd == NULL) + return -ENODEV; + + ioc = hd->ioc; + vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); + if (!vtarget) + return -ENOMEM; + + vtarget->ioc_id = ioc->id; + vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; + vtarget->id = (u8)starget->id; + vtarget->channel = (u8)starget->channel; + vtarget->starget = starget; + starget->hostdata = vtarget; + + if (starget->channel == 1) { + if (mptscsih_is_phys_disk(ioc, 0, starget->id) == 0) + return 0; + vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT; + /* The real channel for this device is zero */ + vtarget->channel = 0; + /* The actual physdisknum (for RAID passthrough) */ + vtarget->id = mptscsih_raid_id_to_num(ioc, 0, + starget->id); + } + + if (starget->channel == 0 && + mptspi_is_raid(hd, starget->id)) { + vtarget->raidVolume = 1; + ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "RAID Volume @ channel=%d id=%d\n", ioc->name, starget->channel, + starget->id)); + } + + if (ioc->spi_data.nvram && + ioc->spi_data.nvram[starget->id] != MPT_HOST_NVRAM_INVALID) { + u32 nvram = ioc->spi_data.nvram[starget->id]; + spi_min_period(starget) = (nvram & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT; + spi_max_width(starget) = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1; + } else { + spi_min_period(starget) = ioc->spi_data.minSyncFactor; + spi_max_width(starget) = ioc->spi_data.maxBusWidth; + } + spi_max_offset(starget) = ioc->spi_data.maxSyncOffset; + + spi_offset(starget) = 0; + spi_period(starget) = 0xFF; + mptspi_write_width(starget, 0); + + return 0; +} + +static void +mptspi_target_destroy(struct scsi_target *starget) +{ + kfree(starget->hostdata); + starget->hostdata = NULL; +} + +/** + * mptspi_print_write_nego - negotiation parameters debug info that is being sent + * @hd: Pointer to a SCSI HOST structure + * @starget: SCSI target + * @ii: negotiation parameters + * + */ +static void +mptspi_print_write_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii) +{ + ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Requested = 0x%08x" + " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n", + hd->ioc->name, starget->id, ii, + ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "", + ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF), + ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "", + ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "", + ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "", + ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "", + ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "", + ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "", + ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "", + ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": "")); +} + +/** + * mptspi_print_read_nego - negotiation parameters debug info that is being read + * @hd: Pointer to a SCSI HOST structure + * @starget: SCSI target + * @ii: negotiation parameters + * + */ +static void +mptspi_print_read_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii) +{ + ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Read = 0x%08x" + " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n", + hd->ioc->name, starget->id, ii, + ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "", + ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF), + ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "", + ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "", + ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "", + ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "", + ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "", + ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "", + ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "", + ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": "")); +} + +static int mptspi_read_spi_device_pg0(struct scsi_target *starget, + struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0) +{ + struct Scsi_Host *shost = dev_to_shost(&starget->dev); + struct _MPT_SCSI_HOST *hd = shost_priv(shost); + struct _MPT_ADAPTER *ioc = hd->ioc; + struct _CONFIG_PAGE_SCSI_DEVICE_0 *spi_dev_pg0; + dma_addr_t spi_dev_pg0_dma; + int size; + struct _x_config_parms cfg; + struct _CONFIG_PAGE_HEADER hdr; + int err = -EBUSY; + + /* No SPI parameters for RAID devices */ + if (starget->channel == 0 && + mptspi_is_raid(hd, starget->id)) + return -1; + + size = ioc->spi_data.sdp0length * 4; + /* + if (ioc->spi_data.sdp0length & 1) + size += size + 4; + size += 2048; + */ + + spi_dev_pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &spi_dev_pg0_dma, GFP_KERNEL); + if (spi_dev_pg0 == NULL) { + starget_printk(KERN_ERR, starget, MYIOC_s_FMT + "dma_alloc_coherent for parameters failed\n", ioc->name); + return -EINVAL; + } + + memset(&hdr, 0, sizeof(hdr)); + + hdr.PageVersion = ioc->spi_data.sdp0version; + hdr.PageLength = ioc->spi_data.sdp0length; + hdr.PageNumber = 0; + hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE; + + memset(&cfg, 0, sizeof(cfg)); + + cfg.cfghdr.hdr = &hdr; + cfg.physAddr = spi_dev_pg0_dma; + cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; + cfg.dir = 0; + cfg.pageAddr = starget->id; + cfg.timeout = 60; + + if (mpt_config(ioc, &cfg)) { + starget_printk(KERN_ERR, starget, MYIOC_s_FMT "mpt_config failed\n", ioc->name); + goto out_free; + } + err = 0; + memcpy(pass_pg0, spi_dev_pg0, size); + + mptspi_print_read_nego(hd, starget, le32_to_cpu(spi_dev_pg0->NegotiatedParameters)); + + out_free: + dma_free_coherent(&ioc->pcidev->dev, size, spi_dev_pg0, spi_dev_pg0_dma); + return err; +} + +static u32 mptspi_getRP(struct scsi_target *starget) +{ + u32 nego = 0; + + nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0; + nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0; + nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0; + nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0; + nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0; + nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0; + nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0; + nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0; + + nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK; + nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK; + nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0; + + return nego; +} + +static void mptspi_read_parameters(struct scsi_target *starget) +{ + int nego; + struct _CONFIG_PAGE_SCSI_DEVICE_0 spi_dev_pg0; + + mptspi_read_spi_device_pg0(starget, &spi_dev_pg0); + + nego = le32_to_cpu(spi_dev_pg0.NegotiatedParameters); + + spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0; + spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0; + spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0; + spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0; + spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0; + spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0; + spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0; + spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0; + spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD; + spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET; + spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0; +} + +static int +mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id) +{ + MPT_ADAPTER *ioc = hd->ioc; + MpiRaidActionRequest_t *pReq; + MPT_FRAME_HDR *mf; + int ret; + unsigned long timeleft; + + mutex_lock(&ioc->internal_cmds.mutex); + + /* Get and Populate a free Frame + */ + if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { + dfailprintk(hd->ioc, printk(MYIOC_s_WARN_FMT + "%s: no msg frames!\n", ioc->name, __func__)); + ret = -EAGAIN; + goto out; + } + pReq = (MpiRaidActionRequest_t *)mf; + if (quiesce) + pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO; + else + pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO; + pReq->Reserved1 = 0; + pReq->ChainOffset = 0; + pReq->Function = MPI_FUNCTION_RAID_ACTION; + pReq->VolumeID = id; + pReq->VolumeBus = channel; + pReq->PhysDiskNum = 0; + pReq->MsgFlags = 0; + pReq->Reserved2 = 0; + pReq->ActionDataWord = 0; /* Reserved for this action */ + + ioc->add_sge((char *)&pReq->ActionDataSGE, + MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1); + + ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n", + ioc->name, pReq->Action, channel, id)); + + INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status) + mpt_put_msg_frame(ioc->InternalCtx, ioc, mf); + timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 10*HZ); + if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { + ret = -ETIME; + dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: TIMED OUT!\n", + ioc->name, __func__)); + if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) + goto out; + if (!timeleft) { + printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n", + ioc->name, __func__); + mpt_HardResetHandler(ioc, CAN_SLEEP); + mpt_free_msg_frame(ioc, mf); + } + goto out; + } + + ret = ioc->internal_cmds.completion_code; + + out: + CLEAR_MGMT_STATUS(ioc->internal_cmds.status) + mutex_unlock(&ioc->internal_cmds.mutex); + return ret; +} + +static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd, + struct scsi_device *sdev) +{ + VirtTarget *vtarget = scsi_target(sdev)->hostdata; + MPT_ADAPTER *ioc = hd->ioc; + + /* no DV on RAID devices */ + if (sdev->channel == 0 && + mptspi_is_raid(hd, sdev->id)) + return; + + /* If this is a piece of a RAID, then quiesce first */ + if (sdev->channel == 1 && + mptscsih_quiesce_raid(hd, 1, vtarget->channel, vtarget->id) < 0) { + starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT + "Integrated RAID quiesce failed\n", ioc->name); + return; + } + + hd->spi_pending |= (1 << sdev->id); + spi_dv_device(sdev); + hd->spi_pending &= ~(1 << sdev->id); + + if (sdev->channel == 1 && + mptscsih_quiesce_raid(hd, 0, vtarget->channel, vtarget->id) < 0) + starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT + "Integrated RAID resume failed\n", ioc->name); + + mptspi_read_parameters(sdev->sdev_target); + spi_display_xfer_agreement(sdev->sdev_target); + mptspi_read_parameters(sdev->sdev_target); +} + +static int mptspi_slave_alloc(struct scsi_device *sdev) +{ + MPT_SCSI_HOST *hd = shost_priv(sdev->host); + VirtTarget *vtarget; + VirtDevice *vdevice; + struct scsi_target *starget; + MPT_ADAPTER *ioc = hd->ioc; + + if (sdev->channel == 1 && + mptscsih_is_phys_disk(ioc, 0, sdev->id) == 0) + return -ENXIO; + + vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); + if (!vdevice) { + printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", + ioc->name, sizeof(VirtDevice)); + return -ENOMEM; + } + + vdevice->lun = sdev->lun; + sdev->hostdata = vdevice; + + starget = scsi_target(sdev); + vtarget = starget->hostdata; + vdevice->vtarget = vtarget; + vtarget->num_luns++; + + if (sdev->channel == 1) + sdev->no_uld_attach = 1; + + return 0; +} + +static int mptspi_slave_configure(struct scsi_device *sdev) +{ + struct _MPT_SCSI_HOST *hd = shost_priv(sdev->host); + VirtTarget *vtarget = scsi_target(sdev)->hostdata; + int ret; + + mptspi_initTarget(hd, vtarget, sdev); + + ret = mptscsih_slave_configure(sdev); + + if (ret) + return ret; + + ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d min_period=0x%02x" + " max_offset=0x%02x max_width=%d\n", hd->ioc->name, + sdev->id, spi_min_period(scsi_target(sdev)), + spi_max_offset(scsi_target(sdev)), + spi_max_width(scsi_target(sdev)))); + + if ((sdev->channel == 1 || + !(mptspi_is_raid(hd, sdev->id))) && + !spi_initial_dv(sdev->sdev_target)) + mptspi_dv_device(hd, sdev); + + return 0; +} + +static int +mptspi_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt) +{ + struct _MPT_SCSI_HOST *hd = shost_priv(shost); + VirtDevice *vdevice = SCpnt->device->hostdata; + MPT_ADAPTER *ioc = hd->ioc; + + if (!vdevice || !vdevice->vtarget) { + SCpnt->result = DID_NO_CONNECT << 16; + scsi_done(SCpnt); + return 0; + } + + if (SCpnt->device->channel == 1 && + mptscsih_is_phys_disk(ioc, 0, SCpnt->device->id) == 0) { + SCpnt->result = DID_NO_CONNECT << 16; + scsi_done(SCpnt); + return 0; + } + + if (spi_dv_pending(scsi_target(SCpnt->device))) + ddvprintk(ioc, scsi_print_command(SCpnt)); + + return mptscsih_qcmd(SCpnt); +} + +static void mptspi_slave_destroy(struct scsi_device *sdev) +{ + struct scsi_target *starget = scsi_target(sdev); + VirtTarget *vtarget = starget->hostdata; + VirtDevice *vdevice = sdev->hostdata; + + /* Will this be the last lun on a non-raid device? */ + if (vtarget->num_luns == 1 && vdevice->configured_lun) { + struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; + + /* Async Narrow */ + pg1.RequestedParameters = 0; + pg1.Reserved = 0; + pg1.Configuration = 0; + + mptspi_write_spi_device_pg1(starget, &pg1); + } + + mptscsih_slave_destroy(sdev); +} + +static struct scsi_host_template mptspi_driver_template = { + .module = THIS_MODULE, + .proc_name = "mptspi", + .show_info = mptscsih_show_info, + .name = "MPT SPI Host", + .info = mptscsih_info, + .queuecommand = mptspi_qcmd, + .target_alloc = mptspi_target_alloc, + .slave_alloc = mptspi_slave_alloc, + .slave_configure = mptspi_slave_configure, + .target_destroy = mptspi_target_destroy, + .slave_destroy = mptspi_slave_destroy, + .change_queue_depth = mptscsih_change_queue_depth, + .eh_abort_handler = mptscsih_abort, + .eh_device_reset_handler = mptscsih_dev_reset, + .eh_bus_reset_handler = mptscsih_bus_reset, + .eh_host_reset_handler = mptscsih_host_reset, + .bios_param = mptscsih_bios_param, + .can_queue = MPT_SCSI_CAN_QUEUE, + .this_id = -1, + .sg_tablesize = MPT_SCSI_SG_DEPTH, + .max_sectors = 8192, + .cmd_per_lun = 7, + .shost_groups = mptscsih_host_attr_groups, +}; + +static int mptspi_write_spi_device_pg1(struct scsi_target *starget, + struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1) +{ + struct Scsi_Host *shost = dev_to_shost(&starget->dev); + struct _MPT_SCSI_HOST *hd = shost_priv(shost); + struct _MPT_ADAPTER *ioc = hd->ioc; + struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1; + dma_addr_t pg1_dma; + int size; + struct _x_config_parms cfg; + struct _CONFIG_PAGE_HEADER hdr; + int err = -EBUSY; + u32 nego_parms; + u32 period; + struct scsi_device *sdev; + int i; + + /* don't allow updating nego parameters on RAID devices */ + if (starget->channel == 0 && + mptspi_is_raid(hd, starget->id)) + return -1; + + size = ioc->spi_data.sdp1length * 4; + + pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL); + if (pg1 == NULL) { + starget_printk(KERN_ERR, starget, MYIOC_s_FMT + "dma_alloc_coherent for parameters failed\n", ioc->name); + return -EINVAL; + } + + memset(&hdr, 0, sizeof(hdr)); + + hdr.PageVersion = ioc->spi_data.sdp1version; + hdr.PageLength = ioc->spi_data.sdp1length; + hdr.PageNumber = 1; + hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE; + + memset(&cfg, 0, sizeof(cfg)); + + cfg.cfghdr.hdr = &hdr; + cfg.physAddr = pg1_dma; + cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; + cfg.dir = 1; + cfg.pageAddr = starget->id; + + memcpy(pg1, pass_pg1, size); + + pg1->Header.PageVersion = hdr.PageVersion; + pg1->Header.PageLength = hdr.PageLength; + pg1->Header.PageNumber = hdr.PageNumber; + pg1->Header.PageType = hdr.PageType; + + nego_parms = le32_to_cpu(pg1->RequestedParameters); + period = (nego_parms & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK) >> + MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD; + if (period == 8) { + /* Turn on inline data padding for TAPE when running U320 */ + for (i = 0 ; i < 16; i++) { + sdev = scsi_device_lookup_by_target(starget, i); + if (sdev && sdev->type == TYPE_TAPE) { + sdev_printk(KERN_DEBUG, sdev, MYIOC_s_FMT + "IDP:ON\n", ioc->name); + nego_parms |= MPI_SCSIDEVPAGE1_RP_IDP; + pg1->RequestedParameters = + cpu_to_le32(nego_parms); + break; + } + } + } + + mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters)); + + if (mpt_config(ioc, &cfg)) { + starget_printk(KERN_ERR, starget, MYIOC_s_FMT + "mpt_config failed\n", ioc->name); + goto out_free; + } + err = 0; + + out_free: + dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma); + return err; +} + +static void mptspi_write_offset(struct scsi_target *starget, int offset) +{ + struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; + u32 nego; + + if (offset < 0) + offset = 0; + + if (offset > 255) + offset = 255; + + if (spi_offset(starget) == -1) + mptspi_read_parameters(starget); + + spi_offset(starget) = offset; + + nego = mptspi_getRP(starget); + + pg1.RequestedParameters = cpu_to_le32(nego); + pg1.Reserved = 0; + pg1.Configuration = 0; + + mptspi_write_spi_device_pg1(starget, &pg1); +} + +static void mptspi_write_period(struct scsi_target *starget, int period) +{ + struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; + u32 nego; + + if (period < 8) + period = 8; + + if (period > 255) + period = 255; + + if (spi_period(starget) == -1) + mptspi_read_parameters(starget); + + if (period == 8) { + spi_iu(starget) = 1; + spi_dt(starget) = 1; + } else if (period == 9) { + spi_dt(starget) = 1; + } + + spi_period(starget) = period; + + nego = mptspi_getRP(starget); + + pg1.RequestedParameters = cpu_to_le32(nego); + pg1.Reserved = 0; + pg1.Configuration = 0; + + mptspi_write_spi_device_pg1(starget, &pg1); +} + +static void mptspi_write_dt(struct scsi_target *starget, int dt) +{ + struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; + u32 nego; + + if (spi_period(starget) == -1) + mptspi_read_parameters(starget); + + if (!dt && spi_period(starget) < 10) + spi_period(starget) = 10; + + spi_dt(starget) = dt; + + nego = mptspi_getRP(starget); + + + pg1.RequestedParameters = cpu_to_le32(nego); + pg1.Reserved = 0; + pg1.Configuration = 0; + + mptspi_write_spi_device_pg1(starget, &pg1); +} + +static void mptspi_write_iu(struct scsi_target *starget, int iu) +{ + struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; + u32 nego; + + if (spi_period(starget) == -1) + mptspi_read_parameters(starget); + + if (!iu && spi_period(starget) < 9) + spi_period(starget) = 9; + + spi_iu(starget) = iu; + + nego = mptspi_getRP(starget); + + pg1.RequestedParameters = cpu_to_le32(nego); + pg1.Reserved = 0; + pg1.Configuration = 0; + + mptspi_write_spi_device_pg1(starget, &pg1); +} + +#define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \ +static void mptspi_write_##parm(struct scsi_target *starget, int parm)\ +{ \ + struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \ + u32 nego; \ + \ + spi_##parm(starget) = parm; \ + \ + nego = mptspi_getRP(starget); \ + \ + pg1.RequestedParameters = cpu_to_le32(nego); \ + pg1.Reserved = 0; \ + pg1.Configuration = 0; \ + \ + mptspi_write_spi_device_pg1(starget, &pg1); \ +} + +MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm) +MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow) +MPTSPI_SIMPLE_TRANSPORT_PARM(rti) +MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs) +MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en) + +static void mptspi_write_qas(struct scsi_target *starget, int qas) +{ + struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; + struct Scsi_Host *shost = dev_to_shost(&starget->dev); + struct _MPT_SCSI_HOST *hd = shost_priv(shost); + VirtTarget *vtarget = starget->hostdata; + u32 nego; + + if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) || + hd->ioc->spi_data.noQas) + spi_qas(starget) = 0; + else + spi_qas(starget) = qas; + + nego = mptspi_getRP(starget); + + pg1.RequestedParameters = cpu_to_le32(nego); + pg1.Reserved = 0; + pg1.Configuration = 0; + + mptspi_write_spi_device_pg1(starget, &pg1); +} + +static void mptspi_write_width(struct scsi_target *starget, int width) +{ + struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; + u32 nego; + + if (!width) { + spi_dt(starget) = 0; + if (spi_period(starget) < 10) + spi_period(starget) = 10; + } + + spi_width(starget) = width; + + nego = mptspi_getRP(starget); + + pg1.RequestedParameters = cpu_to_le32(nego); + pg1.Reserved = 0; + pg1.Configuration = 0; + + mptspi_write_spi_device_pg1(starget, &pg1); +} + +struct work_queue_wrapper { + struct work_struct work; + struct _MPT_SCSI_HOST *hd; + int disk; +}; + +static void mpt_work_wrapper(struct work_struct *work) +{ + struct work_queue_wrapper *wqw = + container_of(work, struct work_queue_wrapper, work); + struct _MPT_SCSI_HOST *hd = wqw->hd; + MPT_ADAPTER *ioc = hd->ioc; + struct Scsi_Host *shost = ioc->sh; + struct scsi_device *sdev; + int disk = wqw->disk; + struct _CONFIG_PAGE_IOC_3 *pg3; + + kfree(wqw); + + mpt_findImVolumes(ioc); + pg3 = ioc->raid_data.pIocPg3; + if (!pg3) + return; + + shost_for_each_device(sdev,shost) { + struct scsi_target *starget = scsi_target(sdev); + VirtTarget *vtarget = starget->hostdata; + + /* only want to search RAID components */ + if (sdev->channel != 1) + continue; + + /* The id is the raid PhysDiskNum, even if + * starget->id is the actual target address */ + if(vtarget->id != disk) + continue; + + starget_printk(KERN_INFO, vtarget->starget, MYIOC_s_FMT + "Integrated RAID requests DV of new device\n", ioc->name); + mptspi_dv_device(hd, sdev); + } + shost_printk(KERN_INFO, shost, MYIOC_s_FMT + "Integrated RAID detects new device %d\n", ioc->name, disk); + scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, SCSI_SCAN_RESCAN); +} + + +static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk) +{ + struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC); + MPT_ADAPTER *ioc = hd->ioc; + + if (!wqw) { + shost_printk(KERN_ERR, ioc->sh, MYIOC_s_FMT + "Failed to act on RAID event for physical disk %d\n", + ioc->name, disk); + return; + } + INIT_WORK(&wqw->work, mpt_work_wrapper); + wqw->hd = hd; + wqw->disk = disk; + + schedule_work(&wqw->work); +} + +static int +mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) +{ + u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; + struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); + + if (ioc->bus_type != SPI) + return 0; + + if (hd && event == MPI_EVENT_INTEGRATED_RAID) { + int reason + = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16; + + if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) { + int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24; + mpt_dv_raid(hd, disk); + } + } + return mptscsih_event_process(ioc, pEvReply); +} + +static int +mptspi_deny_binding(struct scsi_target *starget) +{ + struct _MPT_SCSI_HOST *hd = + (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata; + return ((mptspi_is_raid(hd, starget->id)) && + starget->channel == 0) ? 1 : 0; +} + +static struct spi_function_template mptspi_transport_functions = { + .get_offset = mptspi_read_parameters, + .set_offset = mptspi_write_offset, + .show_offset = 1, + .get_period = mptspi_read_parameters, + .set_period = mptspi_write_period, + .show_period = 1, + .get_width = mptspi_read_parameters, + .set_width = mptspi_write_width, + .show_width = 1, + .get_iu = mptspi_read_parameters, + .set_iu = mptspi_write_iu, + .show_iu = 1, + .get_dt = mptspi_read_parameters, + .set_dt = mptspi_write_dt, + .show_dt = 1, + .get_qas = mptspi_read_parameters, + .set_qas = mptspi_write_qas, + .show_qas = 1, + .get_wr_flow = mptspi_read_parameters, + .set_wr_flow = mptspi_write_wr_flow, + .show_wr_flow = 1, + .get_rd_strm = mptspi_read_parameters, + .set_rd_strm = mptspi_write_rd_strm, + .show_rd_strm = 1, + .get_rti = mptspi_read_parameters, + .set_rti = mptspi_write_rti, + .show_rti = 1, + .get_pcomp_en = mptspi_read_parameters, + .set_pcomp_en = mptspi_write_pcomp_en, + .show_pcomp_en = 1, + .get_hold_mcs = mptspi_read_parameters, + .set_hold_mcs = mptspi_write_hold_mcs, + .show_hold_mcs = 1, + .deny_binding = mptspi_deny_binding, +}; + +/**************************************************************************** + * Supported hardware + */ + +static struct pci_device_id mptspi_pci_table[] = { + { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030, + PCI_ANY_ID, PCI_ANY_ID }, + { PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030, + PCI_ANY_ID, PCI_ANY_ID }, + { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035, + PCI_ANY_ID, PCI_ANY_ID }, + {0} /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(pci, mptspi_pci_table); + + +/* + * renegotiate for a given target + */ +static void +mptspi_dv_renegotiate_work(struct work_struct *work) +{ + struct work_queue_wrapper *wqw = + container_of(work, struct work_queue_wrapper, work); + struct _MPT_SCSI_HOST *hd = wqw->hd; + struct scsi_device *sdev; + struct scsi_target *starget; + struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; + u32 nego; + MPT_ADAPTER *ioc = hd->ioc; + + kfree(wqw); + + if (hd->spi_pending) { + shost_for_each_device(sdev, ioc->sh) { + if (hd->spi_pending & (1 << sdev->id)) + continue; + starget = scsi_target(sdev); + nego = mptspi_getRP(starget); + pg1.RequestedParameters = cpu_to_le32(nego); + pg1.Reserved = 0; + pg1.Configuration = 0; + mptspi_write_spi_device_pg1(starget, &pg1); + } + } else { + shost_for_each_device(sdev, ioc->sh) + mptspi_dv_device(hd, sdev); + } +} + +static void +mptspi_dv_renegotiate(struct _MPT_SCSI_HOST *hd) +{ + struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC); + + if (!wqw) + return; + + INIT_WORK(&wqw->work, mptspi_dv_renegotiate_work); + wqw->hd = hd; + + schedule_work(&wqw->work); +} + +/* + * spi module reset handler + */ +static int +mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) +{ + int rc; + + rc = mptscsih_ioc_reset(ioc, reset_phase); + if ((ioc->bus_type != SPI) || (!rc)) + return rc; + + /* only try to do a renegotiation if we're properly set up + * if we get an ioc fault on bringup, ioc->sh will be NULL */ + if (reset_phase == MPT_IOC_POST_RESET && + ioc->sh) { + struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); + + mptspi_dv_renegotiate(hd); + } + + return rc; +} + +#ifdef CONFIG_PM +/* + * spi module resume handler + */ +static int +mptspi_resume(struct pci_dev *pdev) +{ + MPT_ADAPTER *ioc = pci_get_drvdata(pdev); + struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); + int rc; + + rc = mptscsih_resume(pdev); + mptspi_dv_renegotiate(hd); + + return rc; +} +#endif + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/* + * mptspi_probe - Installs scsi devices per bus. + * @pdev: Pointer to pci_dev structure + * + * Returns 0 for success, non-zero for failure. + * + */ +static int +mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct Scsi_Host *sh; + MPT_SCSI_HOST *hd; + MPT_ADAPTER *ioc; + unsigned long flags; + int ii; + int numSGE = 0; + int scale; + int ioc_cap; + int error=0; + int r; + + if ((r = mpt_attach(pdev,id)) != 0) + return r; + + ioc = pci_get_drvdata(pdev); + ioc->DoneCtx = mptspiDoneCtx; + ioc->TaskCtx = mptspiTaskCtx; + ioc->InternalCtx = mptspiInternalCtx; + + /* Added sanity check on readiness of the MPT adapter. + */ + if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { + printk(MYIOC_s_WARN_FMT + "Skipping because it's not operational!\n", + ioc->name); + error = -ENODEV; + goto out_mptspi_probe; + } + + if (!ioc->active) { + printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", + ioc->name); + error = -ENODEV; + goto out_mptspi_probe; + } + + /* Sanity check - ensure at least 1 port is INITIATOR capable + */ + ioc_cap = 0; + for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { + if (ioc->pfacts[ii].ProtocolFlags & + MPI_PORTFACTS_PROTOCOL_INITIATOR) + ioc_cap ++; + } + + if (!ioc_cap) { + printk(MYIOC_s_WARN_FMT + "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", + ioc->name, ioc); + return 0; + } + + sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST)); + + if (!sh) { + printk(MYIOC_s_WARN_FMT + "Unable to register controller with SCSI subsystem\n", + ioc->name); + error = -1; + goto out_mptspi_probe; + } + + /* VMWare emulation doesn't properly implement WRITE_SAME + */ + if (pdev->subsystem_vendor == 0x15AD) + sh->no_write_same = 1; + + spin_lock_irqsave(&ioc->FreeQlock, flags); + + /* Attach the SCSI Host to the IOC structure + */ + ioc->sh = sh; + + sh->io_port = 0; + sh->n_io_port = 0; + sh->irq = 0; + + /* set 16 byte cdb's */ + sh->max_cmd_len = 16; + + /* Yikes! This is important! + * Otherwise, by default, linux + * only scans target IDs 0-7! + * pfactsN->MaxDevices unreliable + * (not supported in early + * versions of the FW). + * max_id = 1 + actual max id, + * max_lun = 1 + actual last lun, + * see hosts.h :o( + */ + sh->max_id = ioc->devices_per_bus; + + sh->max_lun = MPT_LAST_LUN + 1; + /* + * If RAID Firmware Detected, setup virtual channel + */ + if (ioc->ir_firmware) + sh->max_channel = 1; + else + sh->max_channel = 0; + sh->this_id = ioc->pfacts[0].PortSCSIID; + + /* Required entry. + */ + sh->unique_id = ioc->id; + + /* Verify that we won't exceed the maximum + * number of chain buffers + * We can optimize: ZZ = req_sz/sizeof(SGE) + * For 32bit SGE's: + * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ + * + (req_sz - 64)/sizeof(SGE) + * A slightly different algorithm is required for + * 64bit SGEs. + */ + scale = ioc->req_sz/ioc->SGE_size; + if (ioc->sg_addr_size == sizeof(u64)) { + numSGE = (scale - 1) * + (ioc->facts.MaxChainDepth-1) + scale + + (ioc->req_sz - 60) / ioc->SGE_size; + } else { + numSGE = 1 + (scale - 1) * + (ioc->facts.MaxChainDepth-1) + scale + + (ioc->req_sz - 64) / ioc->SGE_size; + } + + if (numSGE < sh->sg_tablesize) { + /* Reset this value */ + dprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "Resetting sg_tablesize to %d from %d\n", + ioc->name, numSGE, sh->sg_tablesize)); + sh->sg_tablesize = numSGE; + } + + spin_unlock_irqrestore(&ioc->FreeQlock, flags); + + hd = shost_priv(sh); + hd->ioc = ioc; + + /* SCSI needs scsi_cmnd lookup table! + * (with size equal to req_depth*PtrSz!) + */ + ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_KERNEL); + if (!ioc->ScsiLookup) { + error = -ENOMEM; + goto out_mptspi_probe; + } + spin_lock_init(&ioc->scsi_lookup_lock); + + dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", + ioc->name, ioc->ScsiLookup)); + + ioc->spi_data.Saf_Te = mpt_saf_te; + ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT + "saf_te %x\n", + ioc->name, + mpt_saf_te)); + ioc->spi_data.noQas = 0; + + hd->last_queue_full = 0; + hd->spi_pending = 0; + + /* Some versions of the firmware don't support page 0; without + * that we can't get the parameters */ + if (ioc->spi_data.sdp0length != 0) + sh->transportt = mptspi_transport_template; + + error = scsi_add_host (sh, &ioc->pcidev->dev); + if(error) { + dprintk(ioc, printk(MYIOC_s_ERR_FMT + "scsi_add_host failed\n", ioc->name)); + goto out_mptspi_probe; + } + + /* + * issue internal bus reset + */ + if (ioc->spi_data.bus_reset) + mptscsih_IssueTaskMgmt(hd, + MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS, + 0, 0, 0, 0, 5); + + scsi_scan_host(sh); + return 0; + +out_mptspi_probe: + + mptscsih_remove(pdev); + return error; +} + +static void mptspi_remove(struct pci_dev *pdev) +{ + MPT_ADAPTER *ioc = pci_get_drvdata(pdev); + + scsi_remove_host(ioc->sh); + mptscsih_remove(pdev); +} + +static struct pci_driver mptspi_driver = { + .name = "mptspi", + .id_table = mptspi_pci_table, + .probe = mptspi_probe, + .remove = mptspi_remove, + .shutdown = mptscsih_shutdown, +#ifdef CONFIG_PM + .suspend = mptscsih_suspend, + .resume = mptspi_resume, +#endif +}; + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptspi_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. + * + * Returns 0 for success, non-zero for failure. + */ +static int __init +mptspi_init(void) +{ + int error; + + show_mptmod_ver(my_NAME, my_VERSION); + + mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions); + if (!mptspi_transport_template) + return -ENODEV; + + mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER, + "mptscsih_io_done"); + mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER, + "mptscsih_taskmgmt_complete"); + mptspiInternalCtx = mpt_register(mptscsih_scandv_complete, + MPTSPI_DRIVER, "mptscsih_scandv_complete"); + + mpt_event_register(mptspiDoneCtx, mptspi_event_process); + mpt_reset_register(mptspiDoneCtx, mptspi_ioc_reset); + + error = pci_register_driver(&mptspi_driver); + if (error) + spi_release_transport(mptspi_transport_template); + + return error; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptspi_exit - Unregisters MPT adapter(s) + */ +static void __exit +mptspi_exit(void) +{ + pci_unregister_driver(&mptspi_driver); + + mpt_reset_deregister(mptspiDoneCtx); + mpt_event_deregister(mptspiDoneCtx); + + mpt_deregister(mptspiInternalCtx); + mpt_deregister(mptspiTaskCtx); + mpt_deregister(mptspiDoneCtx); + spi_release_transport(mptspi_transport_template); +} + +module_init(mptspi_init); +module_exit(mptspi_exit); |