--- /dev/null
+/*
+ * 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> /* needed for in_interrupt() proto */
+#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 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;
+ u16 req_idx;
+ u32 frameOffset;
+ u32 flagsLength;
+ int ii;
+
+ /* Get a MF for this command.
+ */
+ if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
+ dfailprintk(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;
+
+ req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
+ frameOffset = ioc->req_sz - sizeof(IOCPage4_t);
+
+ /* Complete the request frame (same for all requests).
+ */
+ pReq->Action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+ pReq->Reserved = 0;
+ pReq->ChainOffset = 0;
+ pReq->Function = MPI_FUNCTION_CONFIG;
+ pReq->ExtPageLength = 0;
+ pReq->ExtPageType = 0;
+ pReq->MsgFlags = 0;
+ for (ii=0; ii < 8; ii++) {
+ pReq->Reserved2[ii] = 0;
+ }
+
+ IOCPage4Ptr = ioc->spi_data.pIocPg4;
+ dataDma = ioc->spi_data.IocPg4_dma;
+ ii = IOCPage4Ptr->ActiveSEP++;
+ IOCPage4Ptr->SEP[ii].SEPTargetID = id;
+ IOCPage4Ptr->SEP[ii].SEPBus = channel;
+ pReq->Header = IOCPage4Ptr->Header;
+ pReq->PageAddress = cpu_to_le32(id | (channel << 8 ));
+
+ /* Add a SGE to the config request.
+ */
+ flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE |
+ (IOCPage4Ptr->Header.PageLength + ii) * 4;
+
+ 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;
+ SCpnt->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;
+ SCpnt->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,
+ .use_clustering = ENABLE_CLUSTERING,
+ .shost_attrs = mptscsih_host_attrs,
+};
+
+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, 1);
+}
+
+
+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_ATOMIC);
+ 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 struct pci_driver mptspi_driver = {
+ .name = "mptspi",
+ .id_table = mptspi_pci_table,
+ .probe = mptspi_probe,
+ .remove = mptscsih_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);
Code Review / kvmfornfv.git / blobdiff