Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
new file mode 100644
index 0000000..c98d625
--- /dev/null
+++ b/drivers/message/fusion/mptscsih.c
@@ -0,0 +1,6021 @@
+/*
+ * linux/drivers/message/fusion/mptscsih.c
+ * High performance SCSI / Fibre Channel SCSI Host device driver.
+ * For use with PCI chip/adapter(s):
+ * LSIFC9xx/LSI409xx Fibre Channel
+ * running LSI Logic Fusion MPT (Message Passing Technology) firmware.
+ *
+ * Credits:
+ * This driver would not exist if not for Alan Cox's development
+ * of the linux i2o driver.
+ *
+ * A special thanks to Pamela Delaney (LSI Logic) for tons of work
+ * and countless enhancements while adding support for the 1030
+ * chip family. Pam has been instrumental in the development of
+ * of the 2.xx.xx series fusion drivers, and her contributions are
+ * far too numerous to hope to list in one place.
+ *
+ * A huge debt of gratitude is owed to David S. Miller (DaveM)
+ * for fixing much of the stupid and broken stuff in the early
+ * driver while porting to sparc64 platform. THANK YOU!
+ *
+ * (see mptbase.c)
+ *
+ * Copyright (c) 1999-2004 LSI Logic Corporation
+ * Original author: Steven J. Ralston
+ * (mailto:sjralston1@netscape.net)
+ * (mailto:mpt_linux_developer@lsil.com)
+ *
+ * $Id: mptscsih.c,v 1.104 2002/12/03 21:26:34 pdelaney Exp $
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ 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_compat.h" /* linux-2.6 tweaks */
+#include <linux/module.h>
+#include <linux/kernel.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/sched.h>
+#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 "mptbase.h"
+#include "mptscsih.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");
+
+/* Command line args */
+static int mpt_dv = MPTSCSIH_DOMAIN_VALIDATION;
+MODULE_PARM(mpt_dv, "i");
+MODULE_PARM_DESC(mpt_dv, " DV Algorithm: enhanced=1, basic=0 (default=MPTSCSIH_DOMAIN_VALIDATION=1)");
+
+static int mpt_width = MPTSCSIH_MAX_WIDTH;
+MODULE_PARM(mpt_width, "i");
+MODULE_PARM_DESC(mpt_width, " Max Bus Width: wide=1, narrow=0 (default=MPTSCSIH_MAX_WIDTH=1)");
+
+static int mpt_factor = MPTSCSIH_MIN_SYNC;
+MODULE_PARM(mpt_factor, "h");
+MODULE_PARM_DESC(mpt_factor, " Min Sync Factor (default=MPTSCSIH_MIN_SYNC=0x08)");
+
+static int mpt_saf_te = MPTSCSIH_SAF_TE;
+MODULE_PARM(mpt_saf_te, "i");
+MODULE_PARM_DESC(mpt_saf_te, " Force enabling SEP Processor: enable=1 (default=MPTSCSIH_SAF_TE=0)");
+
+static int mpt_pq_filter = 0;
+MODULE_PARM(mpt_pq_filter, "i");
+MODULE_PARM_DESC(mpt_pq_filter, " Enable peripheral qualifier filter: enable=1 (default=0)");
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+
+typedef struct _BIG_SENSE_BUF {
+ u8 data[MPT_SENSE_BUFFER_ALLOC];
+} BIG_SENSE_BUF;
+
+#define MPT_SCANDV_GOOD (0x00000000) /* must be 0 */
+#define MPT_SCANDV_DID_RESET (0x00000001)
+#define MPT_SCANDV_SENSE (0x00000002)
+#define MPT_SCANDV_SOME_ERROR (0x00000004)
+#define MPT_SCANDV_SELECTION_TIMEOUT (0x00000008)
+#define MPT_SCANDV_ISSUE_SENSE (0x00000010)
+#define MPT_SCANDV_FALLBACK (0x00000020)
+
+#define MPT_SCANDV_MAX_RETRIES (10)
+
+#define MPT_ICFLAG_BUF_CAP 0x01 /* ReadBuffer Read Capacity format */
+#define MPT_ICFLAG_ECHO 0x02 /* ReadBuffer Echo buffer format */
+#define MPT_ICFLAG_PHYS_DISK 0x04 /* Any SCSI IO but do Phys Disk Format */
+#define MPT_ICFLAG_TAGGED_CMD 0x08 /* Do tagged IO */
+#define MPT_ICFLAG_DID_RESET 0x20 /* Bus Reset occurred with this command */
+#define MPT_ICFLAG_RESERVED 0x40 /* Reserved has been issued */
+
+typedef struct _internal_cmd {
+ char *data; /* data pointer */
+ dma_addr_t data_dma; /* data dma address */
+ int size; /* transfer size */
+ u8 cmd; /* SCSI Op Code */
+ u8 bus; /* bus number */
+ u8 id; /* SCSI ID (virtual) */
+ u8 lun;
+ u8 flags; /* Bit Field - See above */
+ u8 physDiskNum; /* Phys disk number, -1 else */
+ u8 rsvd2;
+ u8 rsvd;
+} INTERNAL_CMD;
+
+typedef struct _negoparms {
+ u8 width;
+ u8 offset;
+ u8 factor;
+ u8 flags;
+} NEGOPARMS;
+
+typedef struct _dv_parameters {
+ NEGOPARMS max;
+ NEGOPARMS now;
+ u8 cmd;
+ u8 id;
+ u16 pad1;
+} DVPARAMETERS;
+
+
+/*
+ * Other private/forward protos...
+ */
+static 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);
+static 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 copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
+static int mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd);
+static int mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout );
+static u32 SCPNT_TO_LOOKUP_IDX(struct scsi_cmnd *sc);
+
+static int mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 target, u8 lun, int ctx2abort, ulong timeout);
+static int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 target, u8 lun, int ctx2abort, ulong timeout);
+
+static int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
+static int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
+
+static void mptscsih_initTarget(MPT_SCSI_HOST *hd, int bus_id, int target_id, u8 lun, char *data, int dlen);
+static void mptscsih_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtDevice *target, char byte56);
+static void mptscsih_set_dvflags(MPT_SCSI_HOST *hd, SCSIIORequest_t *pReq);
+static void mptscsih_setDevicePage1Flags (u8 width, u8 factor, u8 offset, int *requestedPtr, int *configurationPtr, u8 flags);
+static void mptscsih_no_negotiate(MPT_SCSI_HOST *hd, int target_id);
+static int mptscsih_writeSDP1(MPT_SCSI_HOST *hd, int portnum, int target, int flags);
+static int mptscsih_writeIOCPage4(MPT_SCSI_HOST *hd, int target_id, int bus);
+static int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
+static void mptscsih_timer_expired(unsigned long data);
+static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
+static int mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, int portnum);
+
+#ifdef MPTSCSIH_ENABLE_DOMAIN_VALIDATION
+static int mptscsih_do_raid(MPT_SCSI_HOST *hd, u8 action, INTERNAL_CMD *io);
+static void mptscsih_domainValidation(void *hd);
+static int mptscsih_is_phys_disk(MPT_ADAPTER *ioc, int id);
+static void mptscsih_qas_check(MPT_SCSI_HOST *hd, int id);
+static int mptscsih_doDv(MPT_SCSI_HOST *hd, int channel, int target);
+static void mptscsih_dv_parms(MPT_SCSI_HOST *hd, DVPARAMETERS *dv,void *pPage);
+static void mptscsih_fillbuf(char *buffer, int size, int index, int width);
+#endif
+/* module entry point */
+static int __init mptscsih_init (void);
+static void __exit mptscsih_exit (void);
+
+static int mptscsih_probe (struct pci_dev *, const struct pci_device_id *);
+static void mptscsih_remove(struct pci_dev *);
+static void mptscsih_shutdown(struct device *);
+#ifdef CONFIG_PM
+static int mptscsih_suspend(struct pci_dev *pdev, u32 state);
+static int mptscsih_resume(struct pci_dev *pdev);
+#endif
+
+
+/*
+ * Private data...
+ */
+
+static int mpt_scsi_hosts = 0;
+
+static int ScsiDoneCtx = -1;
+static int ScsiTaskCtx = -1;
+static int ScsiScanDvCtx = -1; /* Used only for bus scan and dv */
+
+#define SNS_LEN(scp) sizeof((scp)->sense_buffer)
+
+#ifdef MPTSCSIH_ENABLE_DOMAIN_VALIDATION
+/*
+ * Domain Validation task structure
+ */
+static DEFINE_SPINLOCK(dvtaskQ_lock);
+static int dvtaskQ_active = 0;
+static int dvtaskQ_release = 0;
+static struct work_struct mptscsih_dvTask;
+#endif
+
+/*
+ * Wait Queue setup
+ */
+static DECLARE_WAIT_QUEUE_HEAD (scandv_waitq);
+static int scandv_wait_done = 1;
+
+
+/* Driver command line structure
+ */
+static struct scsi_host_template driver_template;
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * mptscsih_add_sge - Place a simple SGE at address pAddr.
+ * @pAddr: virtual address for SGE
+ * @flagslength: SGE flags and data transfer length
+ * @dma_addr: Physical address
+ *
+ * This routine places a MPT request frame back on the MPT adapter's
+ * FreeQ.
+ */
+static inline void
+mptscsih_add_sge(char *pAddr, u32 flagslength, dma_addr_t dma_addr)
+{
+ if (sizeof(dma_addr_t) == sizeof(u64)) {
+ SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
+ u32 tmp = dma_addr & 0xFFFFFFFF;
+
+ pSge->FlagsLength = cpu_to_le32(flagslength);
+ pSge->Address.Low = cpu_to_le32(tmp);
+ tmp = (u32) ((u64)dma_addr >> 32);
+ pSge->Address.High = cpu_to_le32(tmp);
+
+ } else {
+ SGESimple32_t *pSge = (SGESimple32_t *) pAddr;
+ pSge->FlagsLength = cpu_to_le32(flagslength);
+ pSge->Address = cpu_to_le32(dma_addr);
+ }
+} /* mptscsih_add_sge() */
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * mptscsih_add_chain - Place a chain SGE at address pAddr.
+ * @pAddr: virtual address for SGE
+ * @next: nextChainOffset value (u32's)
+ * @length: length of next SGL segment
+ * @dma_addr: Physical address
+ *
+ * This routine places a MPT request frame back on the MPT adapter's
+ * FreeQ.
+ */
+static inline void
+mptscsih_add_chain(char *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
+{
+ if (sizeof(dma_addr_t) == sizeof(u64)) {
+ SGEChain64_t *pChain = (SGEChain64_t *) pAddr;
+ u32 tmp = dma_addr & 0xFFFFFFFF;
+
+ pChain->Length = cpu_to_le16(length);
+ pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size();
+
+ pChain->NextChainOffset = next;
+
+ pChain->Address.Low = cpu_to_le32(tmp);
+ tmp = (u32) ((u64)dma_addr >> 32);
+ pChain->Address.High = cpu_to_le32(tmp);
+ } else {
+ SGEChain32_t *pChain = (SGEChain32_t *) pAddr;
+ pChain->Length = cpu_to_le16(length);
+ pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size();
+ pChain->NextChainOffset = next;
+ pChain->Address = cpu_to_le32(dma_addr);
+ }
+} /* mptscsih_add_chain() */
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * 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((MYIOC_s_INFO_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((MYIOC_s_INFO_FMT "getFreeChainBuffer (index %d), got buf=%p\n",
+ ioc->name, *retIndex, chainBuf));
+ } else {
+ rc = FAILED;
+ chain_idx = MPT_HOST_NO_CHAIN;
+ dfailprintk((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.
+ */
+ if ( (sges_left = SCpnt->use_sg) ) {
+ sges_left = pci_map_sg(ioc->pcidev,
+ (struct scatterlist *) SCpnt->request_buffer,
+ SCpnt->use_sg,
+ SCpnt->sc_data_direction);
+ if (sges_left == 0)
+ return FAILED;
+ } else if (SCpnt->request_bufflen) {
+ SCpnt->SCp.dma_handle = pci_map_single(ioc->pcidev,
+ SCpnt->request_buffer,
+ SCpnt->request_bufflen,
+ SCpnt->sc_data_direction);
+ dsgprintk((MYIOC_s_INFO_FMT "SG: non-SG for %p, len=%d\n",
+ ioc->name, SCpnt, SCpnt->request_bufflen));
+ mptscsih_add_sge((char *) &pReq->SGL,
+ 0xD1000000|MPT_SGE_FLAGS_ADDRESSING|sgdir|SCpnt->request_bufflen,
+ SCpnt->SCp.dma_handle);
+
+ return SUCCESS;
+ }
+
+ /* Handle the SG case.
+ */
+ sg = (struct scatterlist *) SCpnt->request_buffer;
+ 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) / (sizeof(u32) + sizeof(dma_addr_t)) );
+ numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
+
+ sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | MPT_SGE_FLAGS_ADDRESSING | 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) {
+ sg ++; /* Get next SG element from the OS */
+ sg_done++;
+ continue;
+ }
+
+ v2 = sg_dma_address(sg);
+ mptscsih_add_sge(psge, sgflags | thisxfer, v2);
+
+ sg++; /* Get next SG element from the OS */
+ psge += (sizeof(u32) + sizeof(dma_addr_t));
+ sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
+ 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);
+ mptscsih_add_sge(psge, sgflags | thisxfer, v2);
+ /*
+ sg++;
+ psge += (sizeof(u32) + sizeof(dma_addr_t));
+ */
+ sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
+ 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.
+ */
+ mptscsih_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((MYIOC_s_ERR_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((MYIOC_s_INFO_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 - (sizeof(u32) + sizeof(dma_addr_t)));
+ 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 += (sizeof(u32) + sizeof(dma_addr_t));
+ mptscsih_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((MYIOC_s_ERR_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.
+ */
+ dsgprintk((MYIOC_s_INFO_FMT
+ "calling getFreeChainBuffer SCSI cmd=%02x (%p)\n",
+ ioc->name, pReq->CDB[0], SCpnt));
+ if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED)
+ 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((KERN_INFO " Current buff @ %p (index 0x%x)",
+ psge, req_idx));
+
+ /* Start the SGE for the next buffer
+ */
+ psge = (char *) (ioc->ChainBuffer + chain_dma_off);
+ sgeOffset = 0;
+ sg_done = 0;
+
+ dsgprintk((KERN_INFO " Chain buff @ %p (index 0x%x)\n",
+ psge, chain_idx));
+
+ /* Start the SGE for the next buffer
+ */
+
+ goto nextSGEset;
+ }
+
+ return SUCCESS;
+} /* mptscsih_AddSGE() */
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * 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.
+ */
+static 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;
+
+ hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
+
+ req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
+ sc = hd->ScsiLookup[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;
+ }
+
+ dmfprintk((MYIOC_s_INFO_FMT
+ "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
+ ioc->name, mf, mr, sc, req_idx));
+
+ sc->result = DID_OK << 16; /* Set default reply as OK */
+ pScsiReq = (SCSIIORequest_t *) mf;
+ pScsiReply = (SCSIIOReply_t *) mr;
+
+ if (pScsiReply == NULL) {
+ /* special context reply handling */
+ ;
+ } else {
+ u32 xfer_cnt;
+ u16 status;
+ u8 scsi_state, scsi_status;
+
+ status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
+ scsi_state = pScsiReply->SCSIState;
+ scsi_status = pScsiReply->SCSIStatus;
+ xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
+ sc->resid = sc->request_bufflen - xfer_cnt;
+
+ dreplyprintk((KERN_NOTICE "Reply ha=%d id=%d lun=%d:\n"
+ "IOCStatus=%04xh SCSIState=%02xh SCSIStatus=%02xh\n"
+ "resid=%d bufflen=%d xfer_cnt=%d\n",
+ ioc->id, pScsiReq->TargetID, pScsiReq->LUN[1],
+ status, scsi_state, scsi_status, sc->resid,
+ sc->request_bufflen, xfer_cnt));
+
+ if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
+ copy_sense_data(sc, hd, mf, pScsiReply);
+
+ /*
+ * Look for + dump FCP ResponseInfo[]!
+ */
+ if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID) {
+ printk(KERN_NOTICE " FCP_ResponseInfo=%08xh\n",
+ le32_to_cpu(pScsiReply->ResponseInfo));
+ }
+
+ switch(status) {
+ case MPI_IOCSTATUS_BUSY: /* 0x0002 */
+ /* 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! */
+ sc->result = DID_NO_CONNECT << 16;
+
+ if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
+ hd->sel_timeout[pScsiReq->TargetID]++;
+ break;
+
+ case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
+ case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
+ case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
+ /* Linux handles an unsolicited DID_RESET better
+ * than an unsolicited DID_ABORT.
+ */
+ sc->result = DID_RESET << 16;
+
+ /* GEM Workaround. */
+ if (ioc->bus_type == SCSI)
+ mptscsih_no_negotiate(hd, sc->device->id);
+ break;
+
+ case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */
+ if ( xfer_cnt >= sc->underflow ) {
+ /* Sufficient data transfer occurred */
+ sc->result = (DID_OK << 16) | scsi_status;
+ } else if ( xfer_cnt == 0 ) {
+ /* A CRC Error causes this condition; retry */
+ sc->result = (DRIVER_SENSE << 24) | (DID_OK << 16) |
+ (CHECK_CONDITION << 1);
+ sc->sense_buffer[0] = 0x70;
+ sc->sense_buffer[2] = NO_SENSE;
+ sc->sense_buffer[12] = 0;
+ sc->sense_buffer[13] = 0;
+ } else {
+ sc->result = DID_SOFT_ERROR << 16;
+ }
+ dreplyprintk((KERN_NOTICE "RESIDUAL_MISMATCH: result=%x on id=%d\n", sc->result, sc->target));
+ 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) {
+ /* Have already saved the status and sense data
+ */
+ ;
+ } else {
+ if (xfer_cnt < sc->underflow) {
+ 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((KERN_NOTICE " sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
+ sc->underflow));
+ dreplyprintk((KERN_NOTICE " ActBytesXferd=%02xh\n", 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_RECOVERED_ERROR: /* 0x0040 */
+ case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
+ scsi_status = pScsiReply->SCSIStatus;
+ sc->result = (DID_OK << 16) | scsi_status;
+ if (scsi_state == 0) {
+ ;
+ } else if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
+ /*
+ * 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_INSUFFICIENT_RESOURCES: /* 0x0006 */
+ case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */
+ case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */
+ case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */
+ 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) */
+
+ dreplyprintk((KERN_NOTICE " sc->result is %08xh\n", sc->result));
+ } /* end of address reply case */
+
+ /* Unmap the DMA buffers, if any. */
+ if (sc->use_sg) {
+ pci_unmap_sg(ioc->pcidev, (struct scatterlist *) sc->request_buffer,
+ sc->use_sg, sc->sc_data_direction);
+ } else if (sc->request_bufflen) {
+ pci_unmap_single(ioc->pcidev, sc->SCp.dma_handle,
+ sc->request_bufflen, sc->sc_data_direction);
+ }
+
+ hd->ScsiLookup[req_idx] = NULL;
+
+ 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.
+ */
+static void
+mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
+{
+ MPT_ADAPTER *ioc = hd->ioc;
+ struct scsi_cmnd *SCpnt;
+ MPT_FRAME_HDR *mf;
+ int ii;
+ int max = ioc->req_depth;
+
+ dprintk((KERN_INFO MYNAM ": flush_ScsiLookup called\n"));
+ for (ii= 0; ii < max; ii++) {
+ if ((SCpnt = hd->ScsiLookup[ii]) != NULL) {
+
+ /* Command found.
+ */
+
+ /* Null ScsiLookup index
+ */
+ hd->ScsiLookup[ii] = NULL;
+
+ mf = MPT_INDEX_2_MFPTR(ioc, ii);
+ dmfprintk(( "flush: ScsiDone (mf=%p,sc=%p)\n",
+ mf, SCpnt));
+
+ /* Set status, free OS resources (SG DMA buffers)
+ * Do OS callback
+ * Free driver resources (chain, msg buffers)
+ */
+ if (scsi_device_online(SCpnt->device)) {
+ if (SCpnt->use_sg) {
+ pci_unmap_sg(ioc->pcidev,
+ (struct scatterlist *) SCpnt->request_buffer,
+ SCpnt->use_sg,
+ SCpnt->sc_data_direction);
+ } else if (SCpnt->request_bufflen) {
+ pci_unmap_single(ioc->pcidev,
+ SCpnt->SCp.dma_handle,
+ SCpnt->request_bufflen,
+ SCpnt->sc_data_direction);
+ }
+ }
+ SCpnt->result = DID_RESET << 16;
+ SCpnt->host_scribble = NULL;
+
+ /* Free Chain buffers */
+ mptscsih_freeChainBuffers(ioc, ii);
+
+ /* Free Message frames */
+ mpt_free_msg_frame(ioc, mf);
+
+ SCpnt->scsi_done(SCpnt); /* Issue the command callback */
+ }
+ }
+
+ return;
+}
+
+/*
+ * 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.
+ * @hd: Pointer to a SCSI HOST structure
+ * @target: target id
+ * @lun: lun
+ *
+ * Returns: None.
+ *
+ * Called from slave_destroy.
+ */
+static void
+mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, uint target, uint lun)
+{
+ SCSIIORequest_t *mf = NULL;
+ int ii;
+ int max = hd->ioc->req_depth;
+
+ dsprintk((KERN_INFO MYNAM ": search_running target %d lun %d max %d\n",
+ target, lun, max));
+
+ for (ii=0; ii < max; ii++) {
+ if (hd->ScsiLookup[ii] != NULL) {
+
+ mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(hd->ioc, ii);
+
+ dsprintk(( "search_running: found (sc=%p, mf = %p) target %d, lun %d \n",
+ hd->ScsiLookup[ii], mf, mf->TargetID, mf->LUN[1]));
+
+ if ((mf->TargetID != ((u8)target)) || (mf->LUN[1] != ((u8) lun)))
+ continue;
+
+ /* Cleanup
+ */
+ hd->ScsiLookup[ii] = NULL;
+ mptscsih_freeChainBuffers(hd->ioc, ii);
+ mpt_free_msg_frame(hd->ioc, (MPT_FRAME_HDR *)mf);
+ }
+ }
+
+ return;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * Hack! It might be nice to report if a device is returning QUEUE_FULL
+ * but maybe not each and every time...
+ */
+static long last_queue_full = 0;
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * 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;
+
+ if (time - last_queue_full > 10 * HZ) {
+ char *ioc_str = "ioc?";
+
+ if (sc->device && sc->device->host != NULL && sc->device->host->hostdata != NULL)
+ ioc_str = ((MPT_SCSI_HOST *)sc->device->host->hostdata)->ioc->name;
+ dprintk((MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
+ ioc_str, 0, sc->device->id, sc->device->lun));
+ last_queue_full = time;
+ }
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+static char *info_kbuf = NULL;
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * mptscsih_probe - Installs scsi devices per bus.
+ * @pdev: Pointer to pci_dev structure
+ *
+ * Returns 0 for success, non-zero for failure.
+ *
+ */
+
+static int
+mptscsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct Scsi_Host *sh;
+ MPT_SCSI_HOST *hd;
+ MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
+ unsigned long flags;
+ int sz, ii;
+ int numSGE = 0;
+ int scale;
+ int ioc_cap;
+ u8 *mem;
+ int error=0;
+
+
+ /* 20010202 -sralston
+ * 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);
+ return -ENODEV;
+ }
+
+ if (!ioc->active) {
+ printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
+ ioc->name);
+ return -ENODEV;
+ }
+
+ /* 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 -ENODEV;
+ }
+
+ sh = scsi_host_alloc(&driver_template, sizeof(MPT_SCSI_HOST));
+
+ if (!sh) {
+ printk(MYIOC_s_WARN_FMT
+ "Unable to register controller with SCSI subsystem\n",
+ ioc->name);
+ return -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(
+ */
+ if (ioc->bus_type == SCSI) {
+ sh->max_id = MPT_MAX_SCSI_DEVICES;
+ } else {
+ /* For FC, increase the queue depth
+ * from MPT_SCSI_CAN_QUEUE (31)
+ * to MPT_FC_CAN_QUEUE (63).
+ */
+ sh->can_queue = MPT_FC_CAN_QUEUE;
+ sh->max_id =
+ MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
+ }
+
+ sh->max_lun = MPT_LAST_LUN + 1;
+ 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/(sizeof(dma_addr_t) + sizeof(u32));
+ if (sizeof(dma_addr_t) == sizeof(u64)) {
+ numSGE = (scale - 1) *
+ (ioc->facts.MaxChainDepth-1) + scale +
+ (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
+ sizeof(u32));
+ } else {
+ numSGE = 1 + (scale - 1) *
+ (ioc->facts.MaxChainDepth-1) + scale +
+ (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
+ sizeof(u32));
+ }
+
+ if (numSGE < sh->sg_tablesize) {
+ /* Reset this value */
+ dprintk((MYIOC_s_INFO_FMT
+ "Resetting sg_tablesize to %d from %d\n",
+ ioc->name, numSGE, sh->sg_tablesize));
+ sh->sg_tablesize = numSGE;
+ }
+
+ /* Set the pci device pointer in Scsi_Host structure.
+ */
+ scsi_set_device(sh, &ioc->pcidev->dev);
+
+ spin_unlock_irqrestore(&ioc->FreeQlock, flags);
+
+ hd = (MPT_SCSI_HOST *) sh->hostdata;
+ hd->ioc = ioc;
+
+ /* SCSI needs scsi_cmnd lookup table!
+ * (with size equal to req_depth*PtrSz!)
+ */
+ sz = ioc->req_depth * sizeof(void *);
+ mem = kmalloc(sz, GFP_ATOMIC);
+ if (mem == NULL) {
+ error = -ENOMEM;
+ goto mptscsih_probe_failed;
+ }
+
+ memset(mem, 0, sz);
+ hd->ScsiLookup = (struct scsi_cmnd **) mem;
+
+ dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p, sz=%d\n",
+ ioc->name, hd->ScsiLookup, sz));
+
+ /* Allocate memory for the device structures.
+ * A non-Null pointer at an offset
+ * indicates a device exists.
+ * max_id = 1 + maximum id (hosts.h)
+ */
+ sz = sh->max_id * sizeof(void *);
+ mem = kmalloc(sz, GFP_ATOMIC);
+ if (mem == NULL) {
+ error = -ENOMEM;
+ goto mptscsih_probe_failed;
+ }
+
+ memset(mem, 0, sz);
+ hd->Targets = (VirtDevice **) mem;
+
+ dprintk((KERN_INFO
+ " Targets @ %p, sz=%d\n", hd->Targets, sz));
+
+ /* Clear the TM flags
+ */
+ hd->tmPending = 0;
+ hd->tmState = TM_STATE_NONE;
+ hd->resetPending = 0;
+ hd->abortSCpnt = NULL;
+
+ /* Clear the pointer used to store
+ * single-threaded commands, i.e., those
+ * issued during a bus scan, dv and
+ * configuration pages.
+ */
+ hd->cmdPtr = NULL;
+
+ /* Initialize this SCSI Hosts' timers
+ * To use, set the timer expires field
+ * and add_timer
+ */
+ init_timer(&hd->timer);
+ hd->timer.data = (unsigned long) hd;
+ hd->timer.function = mptscsih_timer_expired;
+
+ if (ioc->bus_type == SCSI) {
+ /* Update with the driver setup
+ * values.
+ */
+ if (ioc->spi_data.maxBusWidth > mpt_width)
+ ioc->spi_data.maxBusWidth = mpt_width;
+ if (ioc->spi_data.minSyncFactor < mpt_factor)
+ ioc->spi_data.minSyncFactor = mpt_factor;
+
+ if (ioc->spi_data.minSyncFactor == MPT_ASYNC) {
+ ioc->spi_data.maxSyncOffset = 0;
+ }
+
+ ioc->spi_data.Saf_Te = mpt_saf_te;
+
+ hd->negoNvram = 0;
+#ifndef MPTSCSIH_ENABLE_DOMAIN_VALIDATION
+ hd->negoNvram = MPT_SCSICFG_USE_NVRAM;
+#endif
+ ioc->spi_data.forceDv = 0;
+ ioc->spi_data.noQas = 0;
+ for (ii=0; ii < MPT_MAX_SCSI_DEVICES; ii++) {
+ ioc->spi_data.dvStatus[ii] =
+ MPT_SCSICFG_NEGOTIATE;
+ }
+
+ for (ii=0; ii < MPT_MAX_SCSI_DEVICES; ii++)
+ ioc->spi_data.dvStatus[ii] |=
+ MPT_SCSICFG_DV_NOT_DONE;
+
+ dinitprintk((MYIOC_s_INFO_FMT
+ "dv %x width %x factor %x saf_te %x\n",
+ ioc->name, mpt_dv,
+ mpt_width,
+ mpt_factor,
+ mpt_saf_te));
+ }
+
+ mpt_scsi_hosts++;
+
+ error = scsi_add_host (sh, &ioc->pcidev->dev);
+ if(error) {
+ dprintk((KERN_ERR MYNAM
+ "scsi_add_host failed\n"));
+ goto mptscsih_probe_failed;
+ }
+
+ scsi_scan_host(sh);
+ return 0;
+
+mptscsih_probe_failed:
+
+ mptscsih_remove(pdev);
+ return error;
+
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * mptscsih_remove - Removed scsi devices
+ * @pdev: Pointer to pci_dev structure
+ *
+ *
+ */
+static 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 count;
+ unsigned long flags;
+
+ if(!host)
+ return;
+
+ scsi_remove_host(host);
+
+#ifdef MPTSCSIH_ENABLE_DOMAIN_VALIDATION
+ /* Check DV thread active */
+ count = 10 * HZ;
+ spin_lock_irqsave(&dvtaskQ_lock, flags);
+ if (dvtaskQ_active) {
+ spin_unlock_irqrestore(&dvtaskQ_lock, flags);
+ while(dvtaskQ_active && --count) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(1);
+ }
+ } else {
+ spin_unlock_irqrestore(&dvtaskQ_lock, flags);
+ }
+ if (!count)
+ printk(KERN_ERR MYNAM ": ERROR - DV thread still active!\n");
+#if defined(MPT_DEBUG_DV) || defined(MPT_DEBUG_DV_TINY)
+ else
+ printk(KERN_ERR MYNAM ": DV thread orig %d, count %d\n", 10 * HZ, count);
+#endif
+#endif
+
+ hd = (MPT_SCSI_HOST *)host->hostdata;
+ if (hd != NULL) {
+ int sz1;
+
+ mptscsih_shutdown(&pdev->dev);
+
+ sz1=0;
+
+ if (hd->ScsiLookup != NULL) {
+ sz1 = hd->ioc->req_depth * sizeof(void *);
+ kfree(hd->ScsiLookup);
+ hd->ScsiLookup = NULL;
+ }
+
+ if (hd->Targets != NULL) {
+ /*
+ * Free pointer array.
+ */
+ kfree(hd->Targets);
+ hd->Targets = NULL;
+ }
+
+ dprintk((MYIOC_s_INFO_FMT
+ "Free'd ScsiLookup (%d) memory\n",
+ hd->ioc->name, sz1));
+
+ /* NULL the Scsi_Host pointer
+ */
+ hd->ioc->sh = NULL;
+ }
+
+ scsi_host_put(host);
+ mpt_scsi_hosts--;
+
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * mptscsih_shutdown - reboot notifier
+ *
+ */
+static void
+mptscsih_shutdown(struct device * dev)
+{
+ MPT_ADAPTER *ioc = pci_get_drvdata(to_pci_dev(dev));
+ struct Scsi_Host *host = ioc->sh;
+ MPT_SCSI_HOST *hd;
+
+ if(!host)
+ return;
+
+ hd = (MPT_SCSI_HOST *)host->hostdata;
+
+ /* Flush the cache of this adapter
+ */
+ if(hd != NULL)
+ mptscsih_synchronize_cache(hd, 0);
+
+}
+
+#ifdef CONFIG_PM
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * mptscsih_suspend - Fusion MPT scsie driver suspend routine.
+ *
+ *
+ */
+static int
+mptscsih_suspend(struct pci_dev *pdev, u32 state)
+{
+ mptscsih_shutdown(&pdev->dev);
+ return 0;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * mptscsih_resume - Fusion MPT scsi driver resume routine.
+ *
+ *
+ */
+static int
+mptscsih_resume(struct pci_dev *pdev)
+{
+ MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
+ struct Scsi_Host *host = ioc->sh;
+ MPT_SCSI_HOST *hd;
+
+ if(!host)
+ return 0;
+
+ hd = (MPT_SCSI_HOST *)host->hostdata;
+ if(!hd)
+ return 0;
+
+#ifdef MPTSCSIH_ENABLE_DOMAIN_VALIDATION
+ {
+ unsigned long lflags;
+ spin_lock_irqsave(&dvtaskQ_lock, lflags);
+ if (!dvtaskQ_active) {
+ dvtaskQ_active = 1;
+ spin_unlock_irqrestore(&dvtaskQ_lock, lflags);
+ INIT_WORK(&mptscsih_dvTask,
+ mptscsih_domainValidation, (void *) hd);
+ schedule_work(&mptscsih_dvTask);
+ } else {
+ spin_unlock_irqrestore(&dvtaskQ_lock, lflags);
+ }
+ }
+#endif
+ return 0;
+}
+
+#endif
+
+static struct mpt_pci_driver mptscsih_driver = {
+ .probe = mptscsih_probe,
+ .remove = mptscsih_remove,
+ .shutdown = mptscsih_shutdown,
+#ifdef CONFIG_PM
+ .suspend = mptscsih_suspend,
+ .resume = mptscsih_resume,
+#endif
+};
+
+/* SCSI host fops start here... */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * mptscsih_init - Register MPT adapter(s) as SCSI host(s) with
+ * linux scsi mid-layer.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int __init
+mptscsih_init(void)
+{
+
+ show_mptmod_ver(my_NAME, my_VERSION);
+
+ ScsiDoneCtx = mpt_register(mptscsih_io_done, MPTSCSIH_DRIVER);
+ ScsiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSCSIH_DRIVER);
+ ScsiScanDvCtx = mpt_register(mptscsih_scandv_complete, MPTSCSIH_DRIVER);
+
+ if (mpt_event_register(ScsiDoneCtx, mptscsih_event_process) == 0) {
+ devtprintk((KERN_INFO MYNAM
+ ": Registered for IOC event notifications\n"));
+ }
+
+ if (mpt_reset_register(ScsiDoneCtx, mptscsih_ioc_reset) == 0) {
+ dprintk((KERN_INFO MYNAM
+ ": Registered for IOC reset notifications\n"));
+ }
+
+ if(mpt_device_driver_register(&mptscsih_driver,
+ MPTSCSIH_DRIVER) != 0 ) {
+ dprintk((KERN_INFO MYNAM
+ ": failed to register dd callbacks\n"));
+ }
+
+ return 0;
+
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * mptscsih_exit - Unregisters MPT adapter(s)
+ *
+ */
+static void __exit
+mptscsih_exit(void)
+{
+ mpt_device_driver_deregister(MPTSCSIH_DRIVER);
+
+ mpt_reset_deregister(ScsiDoneCtx);
+ dprintk((KERN_INFO MYNAM
+ ": Deregistered for IOC reset notifications\n"));
+
+ mpt_event_deregister(ScsiDoneCtx);
+ dprintk((KERN_INFO MYNAM
+ ": Deregistered for IOC event notifications\n"));
+
+ mpt_deregister(ScsiScanDvCtx);
+ mpt_deregister(ScsiTaskCtx);
+ mpt_deregister(ScsiDoneCtx);
+
+ if (info_kbuf != NULL)
+ kfree(info_kbuf);
+
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * 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.
+ */
+static const char *
+mptscsih_info(struct Scsi_Host *SChost)
+{
+ MPT_SCSI_HOST *h;
+ int size = 0;
+
+ if (info_kbuf == NULL)
+ if ((info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
+ return info_kbuf;
+
+ h = (MPT_SCSI_HOST *)SChost->hostdata;
+ info_kbuf[0] = '\0';
+ if (h) {
+ mpt_print_ioc_summary(h->ioc, info_kbuf, &size, 0, 0);
+ info_kbuf[size-1] = '\0';
+ }
+
+ return info_kbuf;
+}
+
+struct info_str {
+ char *buffer;
+ int length;
+ int offset;
+ int pos;
+};
+
+static void copy_mem_info(struct info_str *info, char *data, int len)
+{
+ if (info->pos + len > info->length)
+ len = info->length - info->pos;
+
+ if (info->pos + len < info->offset) {
+ info->pos += len;
+ return;
+ }
+
+ if (info->pos < info->offset) {
+ data += (info->offset - info->pos);
+ len -= (info->offset - info->pos);
+ }
+
+ if (len > 0) {
+ memcpy(info->buffer + info->pos, data, len);
+ info->pos += len;
+ }
+}
+
+static int copy_info(struct info_str *info, char *fmt, ...)
+{
+ va_list args;
+ char buf[81];
+ int len;
+
+ va_start(args, fmt);
+ len = vsprintf(buf, fmt, args);
+ va_end(args);
+
+ copy_mem_info(info, buf, len);
+ return len;
+}
+
+static int mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
+{
+ struct info_str info;
+
+ info.buffer = pbuf;
+ info.length = len;
+ info.offset = offset;
+ info.pos = 0;
+
+ copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
+ copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
+ copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
+ copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
+
+ return ((info.pos > info.offset) ? info.pos - info.offset : 0);
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * mptscsih_proc_info - Return information about MPT adapter
+ *
+ * (linux scsi_host_template.info routine)
+ *
+ * buffer: if write, user data; if read, buffer for user
+ * length: if write, return length;
+ * offset: if write, 0; if read, the current offset into the buffer from
+ * the previous read.
+ * hostno: scsi host number
+ * func: if write = 1; if read = 0
+ */
+static int
+mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
+ int length, int func)
+{
+ MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *)host->hostdata;
+ MPT_ADAPTER *ioc = hd->ioc;
+ int size = 0;
+
+ if (func) {
+ /*
+ * write is not supported
+ */
+ } else {
+ if (start)
+ *start = buffer;
+
+ size = mptscsih_host_info(ioc, buffer, offset, length);
+ }
+
+ return size;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+#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
+ * @done: Pointer SCSI mid-layer IO completion function
+ *
+ * (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)
+ */
+static int
+mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
+{
+ MPT_SCSI_HOST *hd;
+ MPT_FRAME_HDR *mf;
+ SCSIIORequest_t *pScsiReq;
+ VirtDevice *pTarget;
+ int target;
+ int lun;
+ u32 datalen;
+ u32 scsictl;
+ u32 scsidir;
+ u32 cmd_len;
+ int my_idx;
+ int ii;
+
+ hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata;
+ target = SCpnt->device->id;
+ lun = SCpnt->device->lun;
+ SCpnt->scsi_done = done;
+
+ pTarget = hd->Targets[target];
+
+ dmfprintk((MYIOC_s_INFO_FMT "qcmd: SCpnt=%p, done()=%p\n",
+ (hd && hd->ioc) ? hd->ioc->name : "ioc?", SCpnt, done));
+
+ if (hd->resetPending) {
+ dtmprintk((MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
+ (hd && hd->ioc) ? hd->ioc->name : "ioc?", SCpnt));
+ return SCSI_MLQUEUE_HOST_BUSY;
+ }
+
+ /*
+ * Put together a MPT SCSI request...
+ */
+ if ((mf = mpt_get_msg_frame(ScsiDoneCtx, hd->ioc)) == NULL) {
+ dprintk((MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
+ hd->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);
+
+ /* BUG FIX! 19991030 -sralston
+ * 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 = SCpnt->request_bufflen;
+ scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
+ } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
+ datalen = SCpnt->request_bufflen;
+ 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 ( pTarget
+ && (pTarget->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) target;
+ pScsiReq->Bus = (u8) SCpnt->device->channel;
+ pScsiReq->ChainOffset = 0;
+ 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();
+ pScsiReq->LUN[0] = 0;
+ pScsiReq->LUN[1] = lun;
+ pScsiReq->LUN[2] = 0;
+ pScsiReq->LUN[3] = 0;
+ pScsiReq->LUN[4] = 0;
+ pScsiReq->LUN[5] = 0;
+ pScsiReq->LUN[6] = 0;
+ pScsiReq->LUN[7] = 0;
+ 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(hd->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 */
+ mptscsih_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(hd->ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
+ goto fail;
+ }
+
+ hd->ScsiLookup[my_idx] = SCpnt;
+ SCpnt->host_scribble = NULL;
+
+#ifdef MPTSCSIH_ENABLE_DOMAIN_VALIDATION
+ if (hd->ioc->bus_type == SCSI) {
+ int dvStatus = hd->ioc->spi_data.dvStatus[target];
+ int issueCmd = 1;
+
+ if (dvStatus || hd->ioc->spi_data.forceDv) {
+
+ if ((dvStatus & MPT_SCSICFG_NEED_DV) ||
+ (hd->ioc->spi_data.forceDv & MPT_SCSICFG_NEED_DV)) {
+ unsigned long lflags;
+ /* Schedule DV if necessary */
+ spin_lock_irqsave(&dvtaskQ_lock, lflags);
+ if (!dvtaskQ_active) {
+ dvtaskQ_active = 1;
+ spin_unlock_irqrestore(&dvtaskQ_lock, lflags);
+ INIT_WORK(&mptscsih_dvTask, mptscsih_domainValidation, (void *) hd);
+
+ schedule_work(&mptscsih_dvTask);
+ } else {
+ spin_unlock_irqrestore(&dvtaskQ_lock, lflags);
+ }
+ hd->ioc->spi_data.forceDv &= ~MPT_SCSICFG_NEED_DV;
+ }
+
+ /* Trying to do DV to this target, extend timeout.
+ * Wait to issue until flag is clear
+ */
+ if (dvStatus & MPT_SCSICFG_DV_PENDING) {
+ mod_timer(&SCpnt->eh_timeout, jiffies + 40 * HZ);
+ issueCmd = 0;
+ }
+
+ /* Set the DV flags.
+ */
+ if (dvStatus & MPT_SCSICFG_DV_NOT_DONE)
+ mptscsih_set_dvflags(hd, pScsiReq);
+
+ if (!issueCmd)
+ goto fail;
+ }
+ }
+#endif
+
+ mpt_put_msg_frame(ScsiDoneCtx, hd->ioc, mf);
+ dmfprintk((MYIOC_s_INFO_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
+ hd->ioc->name, SCpnt, mf, my_idx));
+ DBG_DUMP_REQUEST_FRAME(mf)
+ return 0;
+
+ fail:
+ mptscsih_freeChainBuffers(hd->ioc, my_idx);
+ mpt_free_msg_frame(hd->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((MYIOC_s_INFO_FMT "FreeChainBuffers (index %d)\n",
+ ioc->name, chain_idx));
+
+ /* handle next */
+ chain_idx = next;
+ }
+ return;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * Reset Handling
+ */
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * mptscsih_TMHandler - Generic handler for SCSI Task Management.
+ * Fall through to mpt_HardResetHandler if: not operational, too many
+ * failed TM requests or handshake failure.
+ *
+ * @ioc: Pointer to MPT_ADAPTER structure
+ * @type: Task Management type
+ * @target: Logical Target ID for reset (if appropriate)
+ * @lun: Logical Unit for reset (if appropriate)
+ * @ctx2abort: Context for the task to be aborted (if appropriate)
+ *
+ * Remark: Currently invoked from a non-interrupt thread (_bh).
+ *
+ * Remark: With old EH code, at most 1 SCSI TaskMgmt function per IOC
+ * will be active.
+ *
+ * Returns 0 for SUCCESS or -1 if FAILED.
+ */
+static int
+mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 target, u8 lun, int ctx2abort, ulong timeout)
+{
+ MPT_ADAPTER *ioc;
+ int rc = -1;
+ int doTask = 1;
+ u32 ioc_raw_state;
+ unsigned long flags;
+
+ /* If FW is being reloaded currently, return success to
+ * the calling function.
+ */
+ if (hd == NULL)
+ return 0;
+
+ ioc = hd->ioc;
+ if (ioc == NULL) {
+ printk(KERN_ERR MYNAM " TMHandler" " NULL ioc!\n");
+ return FAILED;
+ }
+ dtmprintk((MYIOC_s_INFO_FMT "TMHandler Entered!\n", ioc->name));
+
+ // SJR - CHECKME - Can we avoid this here?
+ // (mpt_HardResetHandler has this check...)
+ spin_lock_irqsave(&ioc->diagLock, flags);
+ if ((ioc->diagPending) || (ioc->alt_ioc && ioc->alt_ioc->diagPending)) {
+ spin_unlock_irqrestore(&ioc->diagLock, flags);
+ return FAILED;
+ }
+ spin_unlock_irqrestore(&ioc->diagLock, flags);
+
+ /* Wait a fixed amount of time for the TM pending flag to be cleared.
+ * If we time out and not bus reset, then we return a FAILED status to the caller.
+ * The call to mptscsih_tm_pending_wait() will set the pending flag if we are
+ * successful. Otherwise, reload the FW.
+ */
+ if (mptscsih_tm_pending_wait(hd) == FAILED) {
+ if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
+ dtmprintk((KERN_WARNING MYNAM ": %s: TMHandler abort: "
+ "Timed out waiting for last TM (%d) to complete! \n",
+ hd->ioc->name, hd->tmPending));
+ return FAILED;
+ } else if (type == MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
+ dtmprintk((KERN_WARNING MYNAM ": %s: TMHandler target reset: "
+ "Timed out waiting for last TM (%d) to complete! \n",
+ hd->ioc->name, hd->tmPending));
+ return FAILED;
+ } else if (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) {
+ dtmprintk((KERN_WARNING MYNAM ": %s: TMHandler bus reset: "
+ "Timed out waiting for last TM (%d) to complete! \n",
+ hd->ioc->name, hd->tmPending));
+ if (hd->tmPending & (1 << MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS))
+ return FAILED;
+
+ doTask = 0;
+ }
+ } else {
+ spin_lock_irqsave(&hd->ioc->FreeQlock, flags);
+ hd->tmPending |= (1 << type);
+ spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
+ }
+
+ /* Is operational?
+ */
+ ioc_raw_state = mpt_GetIocState(hd->ioc, 0);
+
+#ifdef MPT_DEBUG_RESET
+ if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
+ printk(MYIOC_s_WARN_FMT
+ "TM Handler: IOC Not operational(0x%x)!\n",
+ hd->ioc->name, ioc_raw_state);
+ }
+#endif
+
+ if (doTask && ((ioc_raw_state & MPI_IOC_STATE_MASK) == MPI_IOC_STATE_OPERATIONAL)
+ && !(ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
+
+ /* Isse the Task Mgmt request.
+ */
+ if (hd->hard_resets < -1)
+ hd->hard_resets++;
+ rc = mptscsih_IssueTaskMgmt(hd, type, channel, target, lun, ctx2abort, timeout);
+ if (rc) {
+ printk(MYIOC_s_INFO_FMT "Issue of TaskMgmt failed!\n", hd->ioc->name);
+ } else {
+ dtmprintk((MYIOC_s_INFO_FMT "Issue of TaskMgmt Successful!\n", hd->ioc->name));
+ }
+ }
+
+ /* Only fall through to the HRH if this is a bus reset
+ */
+ if ((type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) && (rc ||
+ ioc->reload_fw || (ioc->alt_ioc && ioc->alt_ioc->reload_fw))) {
+ dtmprintk((MYIOC_s_INFO_FMT "Calling HardReset! \n",
+ hd->ioc->name));
+ rc = mpt_HardResetHandler(hd->ioc, CAN_SLEEP);
+ }
+
+ dtmprintk((MYIOC_s_INFO_FMT "TMHandler rc = %d!\n", hd->ioc->name, rc));
+
+ return rc;
+}
+
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * mptscsih_IssueTaskMgmt - Generic send Task Management function.
+ * @hd: Pointer to MPT_SCSI_HOST structure
+ * @type: Task Management type
+ * @target: Logical Target ID for reset (if appropriate)
+ * @lun: Logical Unit for reset (if appropriate)
+ * @ctx2abort: Context for the task to be aborted (if appropriate)
+ *
+ * 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, -999 for "no msg frames",
+ * else other non-zero value returned.
+ */
+static int
+mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 target, u8 lun, int ctx2abort, ulong timeout)
+{
+ MPT_FRAME_HDR *mf;
+ SCSITaskMgmt_t *pScsiTm;
+ int ii;
+ int retval;
+
+ /* Return Fail to calling function if no message frames available.
+ */
+ if ((mf = mpt_get_msg_frame(ScsiTaskCtx, hd->ioc)) == NULL) {
+ dfailprintk((MYIOC_s_ERR_FMT "IssueTaskMgmt, no msg frames!!\n",
+ hd->ioc->name));
+ //return FAILED;
+ return -999;
+ }
+ dtmprintk((MYIOC_s_INFO_FMT "IssueTaskMgmt request @ %p\n",
+ hd->ioc->name, mf));
+
+ /* Format the Request
+ */
+ pScsiTm = (SCSITaskMgmt_t *) mf;
+ pScsiTm->TargetID = target;
+ 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;
+
+ for (ii= 0; ii < 8; ii++) {
+ pScsiTm->LUN[ii] = 0;
+ }
+ pScsiTm->LUN[1] = lun;
+
+ for (ii=0; ii < 7; ii++)
+ pScsiTm->Reserved2[ii] = 0;
+
+ pScsiTm->TaskMsgContext = ctx2abort;
+
+ dtmprintk((MYIOC_s_INFO_FMT
+ "IssueTaskMgmt: ctx2abort (0x%08x) type=%d\n",
+ hd->ioc->name, ctx2abort, type));
+
+ DBG_DUMP_TM_REQUEST_FRAME((u32 *)pScsiTm);
+
+ if ((retval = mpt_send_handshake_request(ScsiTaskCtx, hd->ioc,
+ sizeof(SCSITaskMgmt_t), (u32*)pScsiTm,
+ CAN_SLEEP)) != 0) {
+ dfailprintk((MYIOC_s_ERR_FMT "_send_handshake FAILED!"
+ " (hd %p, ioc %p, mf %p) \n", hd->ioc->name, hd,
+ hd->ioc, mf));
+ mpt_free_msg_frame(hd->ioc, mf);
+ return retval;
+ }
+
+ if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {
+ dfailprintk((MYIOC_s_ERR_FMT "_wait_for_completion FAILED!"
+ " (hd %p, ioc %p, mf %p) \n", hd->ioc->name, hd,
+ hd->ioc, mf));
+ mpt_free_msg_frame(hd->ioc, mf);
+ dtmprintk((MYIOC_s_INFO_FMT "Calling HardReset! \n",
+ hd->ioc->name));
+ retval = mpt_HardResetHandler(hd->ioc, CAN_SLEEP);
+ }
+
+ return retval;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * 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.
+ */
+static int
+mptscsih_abort(struct scsi_cmnd * SCpnt)
+{
+ MPT_SCSI_HOST *hd;
+ MPT_ADAPTER *ioc;
+ MPT_FRAME_HDR *mf;
+ u32 ctx2abort;
+ int scpnt_idx;
+ spinlock_t *host_lock = SCpnt->device->host->host_lock;
+
+ /* If we can't locate our host adapter structure, return FAILED status.
+ */
+ if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL) {
+ SCpnt->result = DID_RESET << 16;
+ SCpnt->scsi_done(SCpnt);
+ dfailprintk((KERN_WARNING MYNAM ": mptscsih_abort: "
+ "Can't locate host! (sc=%p)\n",
+ SCpnt));
+ return FAILED;
+ }
+
+ ioc = hd->ioc;
+ if (hd->resetPending)
+ return FAILED;
+
+ printk(KERN_WARNING MYNAM ": %s: >> Attempting task abort! (sc=%p)\n",
+ hd->ioc->name, SCpnt);
+
+ if (hd->timeouts < -1)
+ hd->timeouts++;
+
+ /* Find this command
+ */
+ if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(SCpnt)) < 0) {
+ /* Cmd not found in ScsiLookup.
+ * Do OS callback.
+ */
+ SCpnt->result = DID_RESET << 16;
+ dtmprintk((KERN_WARNING MYNAM ": %s: mptscsih_abort: "
+ "Command not in the active list! (sc=%p)\n",
+ hd->ioc->name, SCpnt));
+ return SUCCESS;
+ }
+
+ /* 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(hd->ioc, scpnt_idx);
+ ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
+
+ hd->abortSCpnt = SCpnt;
+
+ spin_unlock_irq(host_lock);
+ if (mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
+ SCpnt->device->channel, SCpnt->device->id, SCpnt->device->lun,
+ ctx2abort, 2 /* 2 second timeout */)
+ < 0) {
+
+ /* The TM request failed and the subsequent FW-reload failed!
+ * Fatal error case.
+ */
+ printk(MYIOC_s_WARN_FMT "Error issuing abort task! (sc=%p)\n",
+ hd->ioc->name, SCpnt);
+
+ /* We must clear our pending flag before clearing our state.
+ */
+ hd->tmPending = 0;
+ hd->tmState = TM_STATE_NONE;
+
+ spin_lock_irq(host_lock);
+
+ /* Unmap the DMA buffers, if any. */
+ if (SCpnt->use_sg) {
+ pci_unmap_sg(ioc->pcidev, (struct scatterlist *) SCpnt->request_buffer,
+ SCpnt->use_sg, SCpnt->sc_data_direction);
+ } else if (SCpnt->request_bufflen) {
+ pci_unmap_single(ioc->pcidev, SCpnt->SCp.dma_handle,
+ SCpnt->request_bufflen, SCpnt->sc_data_direction);
+ }
+ hd->ScsiLookup[scpnt_idx] = NULL;
+ SCpnt->result = DID_RESET << 16;
+ SCpnt->scsi_done(SCpnt); /* Issue the command callback */
+ mptscsih_freeChainBuffers(ioc, scpnt_idx);
+ mpt_free_msg_frame(ioc, mf);
+ return FAILED;
+ }
+ spin_lock_irq(host_lock);
+ return SUCCESS;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * 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.
+ */
+static int
+mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
+{
+ MPT_SCSI_HOST *hd;
+ spinlock_t *host_lock = SCpnt->device->host->host_lock;
+
+ /* If we can't locate our host adapter structure, return FAILED status.
+ */
+ if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
+ dtmprintk((KERN_WARNING MYNAM ": mptscsih_dev_reset: "
+ "Can't locate host! (sc=%p)\n",
+ SCpnt));
+ return FAILED;
+ }
+
+ if (hd->resetPending)
+ return FAILED;
+
+ printk(KERN_WARNING MYNAM ": %s: >> Attempting target reset! (sc=%p)\n",
+ hd->ioc->name, SCpnt);
+
+ spin_unlock_irq(host_lock);
+ if (mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
+ SCpnt->device->channel, SCpnt->device->id,
+ 0, 0, 5 /* 5 second timeout */)
+ < 0){
+ /* The TM request failed and the subsequent FW-reload failed!
+ * Fatal error case.
+ */
+ printk(MYIOC_s_WARN_FMT "Error processing TaskMgmt request (sc=%p)\n",
+ hd->ioc->name, SCpnt);
+ hd->tmPending = 0;
+ hd->tmState = TM_STATE_NONE;
+ spin_lock_irq(host_lock);
+ return FAILED;
+ }
+ spin_lock_irq(host_lock);
+ return SUCCESS;
+
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * 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.
+ */
+static int
+mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
+{
+ MPT_SCSI_HOST *hd;
+ spinlock_t *host_lock = SCpnt->device->host->host_lock;
+
+ /* If we can't locate our host adapter structure, return FAILED status.
+ */
+ if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
+ dtmprintk((KERN_WARNING MYNAM ": mptscsih_bus_reset: "
+ "Can't locate host! (sc=%p)\n",
+ SCpnt ) );
+ return FAILED;
+ }
+
+ printk(KERN_WARNING MYNAM ": %s: >> Attempting bus reset! (sc=%p)\n",
+ hd->ioc->name, SCpnt);
+
+ if (hd->timeouts < -1)
+ hd->timeouts++;
+
+ /* We are now ready to execute the task management request. */
+ spin_unlock_irq(host_lock);
+ if (mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
+ SCpnt->device->channel, 0, 0, 0, 5 /* 5 second timeout */)
+ < 0){
+
+ /* The TM request failed and the subsequent FW-reload failed!
+ * Fatal error case.
+ */
+ printk(MYIOC_s_WARN_FMT
+ "Error processing TaskMgmt request (sc=%p)\n",
+ hd->ioc->name, SCpnt);
+ hd->tmPending = 0;
+ hd->tmState = TM_STATE_NONE;
+ spin_lock_irq(host_lock);
+ return FAILED;
+ }
+ spin_lock_irq(host_lock);
+ return SUCCESS;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * 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.
+ */
+static int
+mptscsih_host_reset(struct scsi_cmnd *SCpnt)
+{
+ MPT_SCSI_HOST * hd;
+ int status = SUCCESS;
+ spinlock_t *host_lock = SCpnt->device->host->host_lock;
+
+ /* If we can't locate the host to reset, then we failed. */
+ if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
+ dtmprintk( ( KERN_WARNING MYNAM ": mptscsih_host_reset: "
+ "Can't locate host! (sc=%p)\n",
+ SCpnt ) );
+ return FAILED;
+ }
+
+ printk(KERN_WARNING MYNAM ": %s: >> Attempting host reset! (sc=%p)\n",
+ hd->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.
+ */
+ spin_unlock_irq(host_lock);
+ if (mpt_HardResetHandler(hd->ioc, CAN_SLEEP) < 0){
+ status = FAILED;
+ } else {
+ /* Make sure TM pending is cleared and TM state is set to
+ * NONE.
+ */
+ hd->tmPending = 0;
+ hd->tmState = TM_STATE_NONE;
+ }
+ spin_lock_irq(host_lock);
+
+
+ dtmprintk( ( KERN_WARNING MYNAM ": mptscsih_host_reset: "
+ "Status = %s\n",
+ (status == SUCCESS) ? "SUCCESS" : "FAILED" ) );
+
+ return status;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * mptscsih_tm_pending_wait - wait for pending task management request to
+ * complete.
+ * @hd: Pointer to MPT host structure.
+ *
+ * Returns {SUCCESS,FAILED}.
+ */
+static int
+mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd)
+{
+ unsigned long flags;
+ int loop_count = 4 * 10; /* Wait 10 seconds */
+ int status = FAILED;
+
+ do {
+ spin_lock_irqsave(&hd->ioc->FreeQlock, flags);
+ if (hd->tmState == TM_STATE_NONE) {
+ hd->tmState = TM_STATE_IN_PROGRESS;
+ hd->tmPending = 1;
+ status = SUCCESS;
+ spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
+ break;
+ }
+ spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
+ msleep(250);
+ } while (--loop_count);
+
+ return status;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * mptscsih_tm_wait_for_completion - wait for completion of TM task
+ * @hd: Pointer to MPT host structure.
+ *
+ * Returns {SUCCESS,FAILED}.
+ */
+static int
+mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout )
+{
+ unsigned long flags;
+ int loop_count = 4 * timeout;
+ int status = FAILED;
+
+ do {
+ spin_lock_irqsave(&hd->ioc->FreeQlock, flags);
+ if(hd->tmPending == 0) {
+ status = SUCCESS;
+ spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
+ break;
+ }
+ spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
+ msleep_interruptible(250);
+ } while (--loop_count);
+
+ return status;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * 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.
+ */
+static int
+mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
+{
+ SCSITaskMgmtReply_t *pScsiTmReply;
+ SCSITaskMgmt_t *pScsiTmReq;
+ MPT_SCSI_HOST *hd;
+ unsigned long flags;
+ u16 iocstatus;
+ u8 tmType;
+
+ dtmprintk((MYIOC_s_WARN_FMT "TaskMgmt completed (mf=%p,mr=%p)\n",
+ ioc->name, mf, mr));
+ if (ioc->sh) {
+ /* Depending on the thread, a timer is activated for
+ * the TM request. Delete this timer on completion of TM.
+ * Decrement count of outstanding TM requests.
+ */
+ hd = (MPT_SCSI_HOST *)ioc->sh->hostdata;
+ } else {
+ dtmprintk((MYIOC_s_WARN_FMT "TaskMgmt Complete: NULL Scsi Host Ptr\n",
+ ioc->name));
+ return 1;
+ }
+
+ if (mr == NULL) {
+ dtmprintk((MYIOC_s_WARN_FMT "ERROR! TaskMgmt Reply: NULL Request %p\n",
+ ioc->name, mf));
+ return 1;
+ } else {
+ pScsiTmReply = (SCSITaskMgmtReply_t*)mr;
+ pScsiTmReq = (SCSITaskMgmt_t*)mf;
+
+ /* Figure out if this was ABORT_TASK, TARGET_RESET, or BUS_RESET! */
+ tmType = pScsiTmReq->TaskType;
+
+ dtmprintk((MYIOC_s_WARN_FMT " TaskType = %d, TerminationCount=%d\n",
+ ioc->name, tmType, le32_to_cpu(pScsiTmReply->TerminationCount)));
+ DBG_DUMP_TM_REPLY_FRAME((u32 *)pScsiTmReply);
+
+ iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
+ dtmprintk((MYIOC_s_WARN_FMT " SCSI TaskMgmt (%d) IOCStatus=%04x IOCLogInfo=%08x\n",
+ ioc->name, tmType, iocstatus, le32_to_cpu(pScsiTmReply->IOCLogInfo)));
+ /* Error? (anything non-zero?) */
+ if (iocstatus) {
+
+ /* clear flags and continue.
+ */
+ if (tmType == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
+ hd->abortSCpnt = NULL;
+
+ /* If an internal command is present
+ * or the TM failed - reload the FW.
+ * FC FW may respond FAILED to an ABORT
+ */
+ if (tmType == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) {
+ if ((hd->cmdPtr) ||
+ (iocstatus == MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED)) {
+ if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0) {
+ printk((KERN_WARNING
+ " Firmware Reload FAILED!!\n"));
+ }
+ }
+ }
+ } else {
+ dtmprintk((MYIOC_s_WARN_FMT " TaskMgmt SUCCESS\n", ioc->name));
+
+ hd->abortSCpnt = NULL;
+
+ }
+ }
+
+ spin_lock_irqsave(&ioc->FreeQlock, flags);
+ hd->tmPending = 0;
+ spin_unlock_irqrestore(&ioc->FreeQlock, flags);
+ hd->tmState = TM_STATE_NONE;
+
+ return 1;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * This is anyones guess quite frankly.
+ */
+static 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;
+
+ dprintk((KERN_NOTICE
+ ": bios_param: Id=%i Lun=%i Channel=%i CHS=%i/%i/%i\n",
+ sdev->id, sdev->lun,sdev->channel,(int)cylinders,heads,sectors));
+
+ return 0;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * OS entry point to allow host driver to alloc memory
+ * for each scsi device. Called once per device the bus scan.
+ * Return non-zero if allocation fails.
+ * Init memory once per id (not LUN).
+ */
+static int
+mptscsih_slave_alloc(struct scsi_device *device)
+{
+ struct Scsi_Host *host = device->host;
+ MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *)host->hostdata;
+ VirtDevice *vdev;
+ uint target = device->id;
+
+ if (hd == NULL)
+ return -ENODEV;
+
+ if ((vdev = hd->Targets[target]) != NULL)
+ goto out;
+
+ vdev = kmalloc(sizeof(VirtDevice), GFP_KERNEL);
+ if (!vdev) {
+ printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
+ hd->ioc->name, sizeof(VirtDevice));
+ return -ENOMEM;
+ }
+
+ memset(vdev, 0, sizeof(VirtDevice));
+ vdev->tflags = MPT_TARGET_FLAGS_Q_YES;
+ vdev->ioc_id = hd->ioc->id;
+ vdev->target_id = device->id;
+ vdev->bus_id = device->channel;
+ vdev->raidVolume = 0;
+ hd->Targets[device->id] = vdev;
+ if (hd->ioc->bus_type == SCSI) {
+ if (hd->ioc->spi_data.isRaid & (1 << device->id)) {
+ vdev->raidVolume = 1;
+ ddvtprintk((KERN_INFO
+ "RAID Volume @ id %d\n", device->id));
+ }
+ } else {
+ vdev->tflags |= MPT_TARGET_FLAGS_VALID_INQUIRY;
+ }
+
+ out:
+ vdev->num_luns++;
+ return 0;
+}
+
+static int mptscsih_is_raid_volume(MPT_SCSI_HOST *hd, uint id)
+{
+ int i;
+
+ if (!hd->ioc->spi_data.isRaid || !hd->ioc->spi_data.pIocPg3)
+ return 0;
+
+ for (i = 0; i < hd->ioc->spi_data.pIocPg3->NumPhysDisks; i++) {
+ if (id == hd->ioc->spi_data.pIocPg3->PhysDisk[i].PhysDiskID)
+ return 1;
+ }
+
+ return 0;
+}
+
+/*
+ * OS entry point to allow for host driver to free allocated memory
+ * Called if no device present or device being unloaded
+ */
+static void
+mptscsih_slave_destroy(struct scsi_device *device)
+{
+ struct Scsi_Host *host = device->host;
+ MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *)host->hostdata;
+ VirtDevice *vdev;
+ uint target = device->id;
+ uint lun = device->lun;
+
+ if (hd == NULL)
+ return;
+
+ mptscsih_search_running_cmds(hd, target, lun);
+
+ vdev = hd->Targets[target];
+ vdev->luns[0] &= ~(1 << lun);
+ if (--vdev->num_luns)
+ return;
+
+ kfree(hd->Targets[target]);
+ hd->Targets[target] = NULL;
+
+ if (hd->ioc->bus_type == SCSI) {
+ if (mptscsih_is_raid_volume(hd, target)) {
+ hd->ioc->spi_data.forceDv |= MPT_SCSICFG_RELOAD_IOC_PG3;
+ } else {
+ hd->ioc->spi_data.dvStatus[target] =
+ MPT_SCSICFG_NEGOTIATE;
+
+ if (!hd->negoNvram) {
+ hd->ioc->spi_data.dvStatus[target] |=
+ MPT_SCSICFG_DV_NOT_DONE;
+ }
+ }
+ }
+}
+
+static void
+mptscsih_set_queue_depth(struct scsi_device *device, MPT_SCSI_HOST *hd,
+ VirtDevice *pTarget, int qdepth)
+{
+ int max_depth;
+ int tagged;
+
+ if (hd->ioc->bus_type == SCSI) {
+ if (pTarget->tflags & MPT_TARGET_FLAGS_VALID_INQUIRY) {
+ if (!(pTarget->tflags & MPT_TARGET_FLAGS_Q_YES))
+ max_depth = 1;
+ else if (((pTarget->inq_data[0] & 0x1f) == 0x00) &&
+ (pTarget->minSyncFactor <= MPT_ULTRA160 ))
+ max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
+ else
+ max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
+ } else {
+ /* error case - No Inq. Data */
+ max_depth = 1;
+ }
+ } else
+ max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
+
+ if (qdepth > max_depth)
+ qdepth = max_depth;
+ if (qdepth == 1)
+ tagged = 0;
+ else
+ tagged = MSG_SIMPLE_TAG;
+
+ scsi_adjust_queue_depth(device, tagged, 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.
+ */
+static int
+mptscsih_slave_configure(struct scsi_device *device)
+{
+ struct Scsi_Host *sh = device->host;
+ VirtDevice *pTarget;
+ MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *)sh->hostdata;
+
+ if ((hd == NULL) || (hd->Targets == NULL)) {
+ return 0;
+ }
+
+ dsprintk((MYIOC_s_INFO_FMT
+ "device @ %p, id=%d, LUN=%d, channel=%d\n",
+ hd->ioc->name, device, device->id, device->lun, device->channel));
+ dsprintk((MYIOC_s_INFO_FMT
+ "sdtr %d wdtr %d ppr %d inq length=%d\n",
+ hd->ioc->name, device->sdtr, device->wdtr,
+ device->ppr, device->inquiry_len));
+
+ if (device->id > sh->max_id) {
+ /* error case, should never happen */
+ scsi_adjust_queue_depth(device, 0, 1);
+ goto slave_configure_exit;
+ }
+
+ pTarget = hd->Targets[device->id];
+
+ if (pTarget == NULL) {
+ /* Driver doesn't know about this device.
+ * Kernel may generate a "Dummy Lun 0" which
+ * may become a real Lun if a
+ * "scsi add-single-device" command is executed
+ * while the driver is active (hot-plug a
+ * device). LSI Raid controllers need
+ * queue_depth set to DEV_HIGH for this reason.
+ */
+ scsi_adjust_queue_depth(device, MSG_SIMPLE_TAG,
+ MPT_SCSI_CMD_PER_DEV_HIGH);
+ goto slave_configure_exit;
+ }
+
+ mptscsih_initTarget(hd, device->channel, device->id, device->lun,
+ device->inquiry, device->inquiry_len );
+ mptscsih_set_queue_depth(device, hd, pTarget, MPT_SCSI_CMD_PER_DEV_HIGH);
+
+ dsprintk((MYIOC_s_INFO_FMT
+ "Queue depth=%d, tflags=%x\n",
+ hd->ioc->name, device->queue_depth, pTarget->tflags));
+
+ dsprintk((MYIOC_s_INFO_FMT
+ "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
+ hd->ioc->name, pTarget->negoFlags, pTarget->maxOffset, pTarget->minSyncFactor));
+
+slave_configure_exit:
+
+ dsprintk((MYIOC_s_INFO_FMT
+ "tagged %d, simple %d, ordered %d\n",
+ hd->ioc->name,device->tagged_supported, device->simple_tags,
+ device->ordered_tags));
+
+ return 0;
+}
+
+static ssize_t
+mptscsih_store_queue_depth(struct device *dev, const char *buf, size_t count)
+{
+ int depth;
+ struct scsi_device *sdev = to_scsi_device(dev);
+ MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) sdev->host->hostdata;
+ VirtDevice *pTarget;
+
+ depth = simple_strtoul(buf, NULL, 0);
+ if (depth == 0)
+ return -EINVAL;
+ pTarget = hd->Targets[sdev->id];
+ if (pTarget == NULL)
+ return -EINVAL;
+ mptscsih_set_queue_depth(sdev, (MPT_SCSI_HOST *) sdev->host->hostdata,
+ pTarget, depth);
+ return count;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * Private routines...
+ */
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/* Utility function to copy sense data from the scsi_cmnd buffer
+ * to the FC and SCSI target structures.
+ *
+ */
+static void
+copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
+{
+ VirtDevice *target;
+ SCSIIORequest_t *pReq;
+ u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
+ int index;
+
+ /* Get target structure
+ */
+ pReq = (SCSIIORequest_t *) mf;
+ index = (int) pReq->TargetID;
+ target = hd->Targets[index];
+
+ 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 *)hd->ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
+ memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
+
+ /* Log SMART data (asc = 0x5D, non-IM case only) if required.
+ */
+ if ((hd->ioc->events) && (hd->ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
+ if ((sense_data[12] == 0x5D) && (target->raidVolume == 0)) {
+ int idx;
+ MPT_ADAPTER *ioc = hd->ioc;
+
+ idx = ioc->eventContext % ioc->eventLogSize;
+ 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) ||
+ (pReq->Bus << 8) || pReq->TargetID;
+
+ ioc->events[idx].data[1] = (sense_data[13] << 8) || sense_data[12];
+
+ ioc->eventContext++;
+ }
+ }
+ } else {
+ dprintk((MYIOC_s_INFO_FMT "Hmmm... SenseData len=0! (?)\n",
+ hd->ioc->name));
+ }
+}
+
+static u32
+SCPNT_TO_LOOKUP_IDX(struct scsi_cmnd *sc)
+{
+ MPT_SCSI_HOST *hd;
+ int i;
+
+ hd = (MPT_SCSI_HOST *) sc->device->host->hostdata;
+
+ for (i = 0; i < hd->ioc->req_depth; i++) {
+ if (hd->ScsiLookup[i] == sc) {
+ return i;
+ }
+ }
+
+ return -1;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+static int
+mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
+{
+ MPT_SCSI_HOST *hd;
+ unsigned long flags;
+
+ dtmprintk((KERN_WARNING MYNAM
+ ": IOC %s_reset routed to SCSI host driver!\n",
+ reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
+ reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
+
+ /* If a FW reload request arrives after base installed but
+ * before all scsi hosts have been attached, then an alt_ioc
+ * may have a NULL sh pointer.
+ */
+ if ((ioc->sh == NULL) || (ioc->sh->hostdata == NULL))
+ return 0;
+ else
+ hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
+
+ if (reset_phase == MPT_IOC_SETUP_RESET) {
+ dtmprintk((MYIOC_s_WARN_FMT "Setup-Diag Reset\n", ioc->name));
+
+ /* Clean Up:
+ * 1. Set Hard Reset Pending Flag
+ * All new commands go to doneQ
+ */
+ hd->resetPending = 1;
+
+ } else if (reset_phase == MPT_IOC_PRE_RESET) {
+ dtmprintk((MYIOC_s_WARN_FMT "Pre-Diag Reset\n", ioc->name));
+
+ /* 2. Flush running commands
+ * Clean ScsiLookup (and associated memory)
+ * AND clean mytaskQ
+ */
+
+ /* 2b. Reply to OS all known outstanding I/O commands.
+ */
+ mptscsih_flush_running_cmds(hd);
+
+ /* 2c. If there was an internal command that
+ * has not completed, configuration or io request,
+ * free these resources.
+ */
+ if (hd->cmdPtr) {
+ del_timer(&hd->timer);
+ mpt_free_msg_frame(ioc, hd->cmdPtr);
+ }
+
+ dtmprintk((MYIOC_s_WARN_FMT "Pre-Reset complete.\n", ioc->name));
+
+ } else {
+ dtmprintk((MYIOC_s_WARN_FMT "Post-Diag Reset\n", ioc->name));
+
+ /* Once a FW reload begins, all new OS commands are
+ * redirected to the doneQ w/ a reset status.
+ * Init all control structures.
+ */
+
+ /* ScsiLookup initialization
+ */
+ {
+ int ii;
+ for (ii=0; ii < hd->ioc->req_depth; ii++)
+ hd->ScsiLookup[ii] = NULL;
+ }
+
+ /* 2. Chain Buffer initialization
+ */
+
+ /* 4. Renegotiate to all devices, if SCSI
+ */
+ if (ioc->bus_type == SCSI) {
+ dnegoprintk(("writeSDP1: ALL_IDS USE_NVRAM\n"));
+ mptscsih_writeSDP1(hd, 0, 0, MPT_SCSICFG_ALL_IDS | MPT_SCSICFG_USE_NVRAM);
+ }
+
+ /* 5. Enable new commands to be posted
+ */
+ spin_lock_irqsave(&ioc->FreeQlock, flags);
+ hd->tmPending = 0;
+ spin_unlock_irqrestore(&ioc->FreeQlock, flags);
+ hd->resetPending = 0;
+ hd->tmState = TM_STATE_NONE;
+
+ /* 6. If there was an internal command,
+ * wake this process up.
+ */
+ if (hd->cmdPtr) {
+ /*
+ * Wake up the original calling thread
+ */
+ hd->pLocal = &hd->localReply;
+ hd->pLocal->completion = MPT_SCANDV_DID_RESET;
+ scandv_wait_done = 1;
+ wake_up(&scandv_waitq);
+ hd->cmdPtr = NULL;
+ }
+
+ /* 7. Set flag to force DV and re-read IOC Page 3
+ */
+ if (ioc->bus_type == SCSI) {
+ ioc->spi_data.forceDv = MPT_SCSICFG_NEED_DV | MPT_SCSICFG_RELOAD_IOC_PG3;
+ ddvtprintk(("Set reload IOC Pg3 Flag\n"));
+ }
+
+ dtmprintk((MYIOC_s_WARN_FMT "Post-Reset complete.\n", ioc->name));
+
+ }
+
+ return 1; /* currently means nothing really */
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+static int
+mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
+{
+ MPT_SCSI_HOST *hd;
+ u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
+
+ devtprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
+ ioc->name, event));
+
+ switch (event) {
+ case MPI_EVENT_UNIT_ATTENTION: /* 03 */
+ /* FIXME! */
+ break;
+ case MPI_EVENT_IOC_BUS_RESET: /* 04 */
+ case MPI_EVENT_EXT_BUS_RESET: /* 05 */
+ hd = NULL;
+ if (ioc->sh) {
+ hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
+ if (hd && (ioc->bus_type == SCSI) && (hd->soft_resets < -1))
+ hd->soft_resets++;
+ }
+ break;
+ case MPI_EVENT_LOGOUT: /* 09 */
+ /* FIXME! */
+ break;
+
+ /*
+ * CHECKME! Don't think we need to do
+ * anything for these, but...
+ */
+ case MPI_EVENT_RESCAN: /* 06 */
+ case MPI_EVENT_LINK_STATUS_CHANGE: /* 07 */
+ case MPI_EVENT_LOOP_STATE_CHANGE: /* 08 */
+ /*
+ * CHECKME! Falling thru...
+ */
+ break;
+
+ case MPI_EVENT_INTEGRATED_RAID: /* 0B */
+#ifdef MPTSCSIH_ENABLE_DOMAIN_VALIDATION
+ /* negoNvram set to 0 if DV enabled and to USE_NVRAM if
+ * if DV disabled. Need to check for target mode.
+ */
+ hd = NULL;
+ if (ioc->sh)
+ hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
+
+ if (hd && (ioc->bus_type == SCSI) && (hd->negoNvram == 0)) {
+ ScsiCfgData *pSpi;
+ Ioc3PhysDisk_t *pPDisk;
+ int numPDisk;
+ u8 reason;
+ u8 physDiskNum;
+
+ reason = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16;
+ if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) {
+ /* New or replaced disk.
+ * Set DV flag and schedule DV.
+ */
+ pSpi = &ioc->spi_data;
+ physDiskNum = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24;
+ ddvtprintk(("DV requested for phys disk id %d\n", physDiskNum));
+ if (pSpi->pIocPg3) {
+ pPDisk = pSpi->pIocPg3->PhysDisk;
+ numPDisk =pSpi->pIocPg3->NumPhysDisks;
+
+ while (numPDisk) {
+ if (physDiskNum == pPDisk->PhysDiskNum) {
+ pSpi->dvStatus[pPDisk->PhysDiskID] = (MPT_SCSICFG_NEED_DV | MPT_SCSICFG_DV_NOT_DONE);
+ pSpi->forceDv = MPT_SCSICFG_NEED_DV;
+ ddvtprintk(("NEED_DV set for phys disk id %d\n", pPDisk->PhysDiskID));
+ break;
+ }
+ pPDisk++;
+ numPDisk--;
+ }
+
+ if (numPDisk == 0) {
+ /* The physical disk that needs DV was not found
+ * in the stored IOC Page 3. The driver must reload
+ * this page. DV routine will set the NEED_DV flag for
+ * all phys disks that have DV_NOT_DONE set.
+ */
+ pSpi->forceDv = MPT_SCSICFG_NEED_DV | MPT_SCSICFG_RELOAD_IOC_PG3;
+ ddvtprintk(("phys disk %d not found. Setting reload IOC Pg3 Flag\n", physDiskNum));
+ }
+ }
+ }
+ }
+#endif
+
+#if defined(MPT_DEBUG_DV) || defined(MPT_DEBUG_DV_TINY)
+ printk("Raid Event RF: ");
+ {
+ u32 *m = (u32 *)pEvReply;
+ int ii;
+ int n = (int)pEvReply->MsgLength;
+ for (ii=6; ii < n; ii++)
+ printk(" %08x", le32_to_cpu(m[ii]));
+ printk("\n");
+ }
+#endif
+ break;
+
+ case MPI_EVENT_NONE: /* 00 */
+ case MPI_EVENT_LOG_DATA: /* 01 */
+ case MPI_EVENT_STATE_CHANGE: /* 02 */
+ case MPI_EVENT_EVENT_CHANGE: /* 0A */
+ default:
+ dprintk((KERN_INFO " Ignoring event (=%02Xh)\n", event));
+ break;
+ }
+
+ return 1; /* currently means nothing really */
+}
+
+static struct device_attribute mptscsih_queue_depth_attr = {
+ .attr = {
+ .name = "queue_depth",
+ .mode = S_IWUSR,
+ },
+ .store = mptscsih_store_queue_depth,
+};
+
+static struct device_attribute *mptscsih_dev_attrs[] = {
+ &mptscsih_queue_depth_attr,
+ NULL,
+};
+
+static struct scsi_host_template driver_template = {
+ .proc_name = "mptscsih",
+ .proc_info = mptscsih_proc_info,
+ .name = "MPT SCSI Host",
+ .info = mptscsih_info,
+ .queuecommand = mptscsih_qcmd,
+ .slave_alloc = mptscsih_slave_alloc,
+ .slave_configure = mptscsih_slave_configure,
+ .slave_destroy = mptscsih_slave_destroy,
+ .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,
+ .sdev_attrs = mptscsih_dev_attrs,
+};
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * mptscsih_initTarget - Target, LUN alloc/free functionality.
+ * @hd: Pointer to MPT_SCSI_HOST structure
+ * @bus_id: Bus number (?)
+ * @target_id: SCSI target id
+ * @lun: SCSI LUN id
+ * @data: Pointer to data
+ * @dlen: Number of INQUIRY bytes
+ *
+ * NOTE: It's only SAFE to call this routine if data points to
+ * sane & valid STANDARD INQUIRY data!
+ *
+ * Allocate and initialize memory for this target.
+ * Save inquiry data.
+ *
+ */
+static void
+mptscsih_initTarget(MPT_SCSI_HOST *hd, int bus_id, int target_id, u8 lun, char *data, int dlen)
+{
+ int indexed_lun, lun_index;
+ VirtDevice *vdev;
+ ScsiCfgData *pSpi;
+ char data_56;
+
+ dinitprintk((MYIOC_s_INFO_FMT "initTarget bus=%d id=%d lun=%d hd=%p\n",
+ hd->ioc->name, bus_id, target_id, lun, hd));
+
+ /*
+ * If the peripheral qualifier filter is enabled then if the target reports a 0x1
+ * (i.e. The targer is capable of supporting the specified peripheral device type
+ * on this logical unit; however, the physical device is not currently connected
+ * to this logical unit) it will be converted to a 0x3 (i.e. The target is not
+ * capable of supporting a physical device on this logical unit). This is to work
+ * around a bug in th emid-layer in some distributions in which the mid-layer will
+ * continue to try to communicate to the LUN and evntually create a dummy LUN.
+ */
+ if (mpt_pq_filter && dlen && (data[0] & 0xE0))
+ data[0] |= 0x40;
+
+ /* Is LUN supported? If so, upper 2 bits will be 0
+ * in first byte of inquiry data.
+ */
+ if (data[0] & 0xe0)
+ return;
+
+ if ((vdev = hd->Targets[target_id]) == NULL) {
+ return;
+ }
+
+ lun_index = (lun >> 5); /* 32 luns per lun_index */
+ indexed_lun = (lun % 32);
+ vdev->luns[lun_index] |= (1 << indexed_lun);
+
+ if (hd->ioc->bus_type == SCSI) {
+ if ((data[0] == TYPE_PROCESSOR) && (hd->ioc->spi_data.Saf_Te)) {
+ /* Treat all Processors as SAF-TE if
+ * command line option is set */
+ vdev->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
+ mptscsih_writeIOCPage4(hd, target_id, bus_id);
+ }else if ((data[0] == TYPE_PROCESSOR) &&
+ !(vdev->tflags & MPT_TARGET_FLAGS_SAF_TE_ISSUED )) {
+ if ( dlen > 49 ) {
+ vdev->tflags |= MPT_TARGET_FLAGS_VALID_INQUIRY;
+ if ( data[44] == 'S' &&
+ data[45] == 'A' &&
+ data[46] == 'F' &&
+ data[47] == '-' &&
+ data[48] == 'T' &&
+ data[49] == 'E' ) {
+ vdev->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
+ mptscsih_writeIOCPage4(hd, target_id, bus_id);
+ }
+ }
+ }
+ if (!(vdev->tflags & MPT_TARGET_FLAGS_VALID_INQUIRY)) {
+ if ( dlen > 8 ) {
+ memcpy (vdev->inq_data, data, 8);
+ } else {
+ memcpy (vdev->inq_data, data, dlen);
+ }
+
+ /* If have not done DV, set the DV flag.
+ */
+ pSpi = &hd->ioc->spi_data;
+ if ((data[0] == TYPE_TAPE) || (data[0] == TYPE_PROCESSOR)) {
+ if (pSpi->dvStatus[target_id] & MPT_SCSICFG_DV_NOT_DONE)
+ pSpi->dvStatus[target_id] |= MPT_SCSICFG_NEED_DV;
+ }
+
+ vdev->tflags |= MPT_TARGET_FLAGS_VALID_INQUIRY;
+
+
+ data_56 = 0x0F; /* Default to full capabilities if Inq data length is < 57 */
+ if (dlen > 56) {
+ if ( (!(vdev->tflags & MPT_TARGET_FLAGS_VALID_56))) {
+ /* Update the target capabilities
+ */
+ data_56 = data[56];
+ vdev->tflags |= MPT_TARGET_FLAGS_VALID_56;
+ }
+ }
+ mptscsih_setTargetNegoParms(hd, vdev, data_56);
+ } else {
+ /* Initial Inquiry may not request enough data bytes to
+ * obtain byte 57. DV will; if target doesn't return
+ * at least 57 bytes, data[56] will be zero. */
+ if (dlen > 56) {
+ if ( (!(vdev->tflags & MPT_TARGET_FLAGS_VALID_56))) {
+ /* Update the target capabilities
+ */
+ data_56 = data[56];
+ vdev->tflags |= MPT_TARGET_FLAGS_VALID_56;
+ mptscsih_setTargetNegoParms(hd, vdev, data_56);
+ }
+ }
+ }
+ }
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * Update the target negotiation parameters based on the
+ * the Inquiry data, adapter capabilities, and NVRAM settings.
+ *
+ */
+static void
+mptscsih_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtDevice *target, char byte56)
+{
+ ScsiCfgData *pspi_data = &hd->ioc->spi_data;
+ int id = (int) target->target_id;
+ int nvram;
+ VirtDevice *vdev;
+ int ii;
+ u8 width = MPT_NARROW;
+ u8 factor = MPT_ASYNC;
+ u8 offset = 0;
+ u8 version, nfactor;
+ u8 noQas = 1;
+
+ target->negoFlags = pspi_data->noQas;
+
+ /* noQas == 0 => device supports QAS. Need byte 56 of Inq to determine
+ * support. If available, default QAS to off and allow enabling.
+ * If not available, default QAS to on, turn off for non-disks.
+ */
+
+ /* Set flags based on Inquiry data
+ */
+ version = target->inq_data[2] & 0x07;
+ if (version < 2) {
+ width = 0;
+ factor = MPT_ULTRA2;
+ offset = pspi_data->maxSyncOffset;
+ target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
+ } else {
+ if (target->inq_data[7] & 0x20) {
+ width = 1;
+ }
+
+ if (target->inq_data[7] & 0x10) {
+ factor = pspi_data->minSyncFactor;
+ if (target->tflags & MPT_TARGET_FLAGS_VALID_56) {
+ /* bits 2 & 3 show Clocking support */
+ if ((byte56 & 0x0C) == 0)
+ factor = MPT_ULTRA2;
+ else {
+ if ((byte56 & 0x03) == 0)
+ factor = MPT_ULTRA160;
+ else {
+ factor = MPT_ULTRA320;
+ if (byte56 & 0x02)
+ {
+ ddvtprintk((KERN_INFO "Enabling QAS due to byte56=%02x on id=%d!\n", byte56, id));
+ noQas = 0;
+ }
+ if (target->inq_data[0] == TYPE_TAPE) {
+ if (byte56 & 0x01)
+ target->negoFlags |= MPT_TAPE_NEGO_IDP;
+ }
+ }
+ }
+ } else {
+ ddvtprintk((KERN_INFO "Enabling QAS on id=%d due to ~TARGET_FLAGS_VALID_56!\n", id));
+ noQas = 0;
+ }
+
+ 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 ( (target->inq_data[7] & 0x02) == 0) {
+ target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
+ }
+
+ /* Update tflags based on NVRAM settings. (SCSI only)
+ */
+ if (pspi_data->nvram && (pspi_data->nvram[id] != MPT_HOST_NVRAM_INVALID)) {
+ nvram = pspi_data->nvram[id];
+ nfactor = (nvram & MPT_NVRAM_SYNC_MASK) >> 8;
+
+ if (width)
+ width = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
+
+ if (offset > 0) {
+ /* Ensure factor is set to the
+ * maximum of: adapter, nvram, inquiry
+ */
+ if (nfactor) {
+ if (nfactor < pspi_data->minSyncFactor )
+ nfactor = pspi_data->minSyncFactor;
+
+ factor = max(factor, nfactor);
+ if (factor == MPT_ASYNC)
+ offset = 0;
+ } else {
+ offset = 0;
+ factor = MPT_ASYNC;
+ }
+ } else {
+ factor = MPT_ASYNC;
+ }
+ }
+
+ /* Make sure data is consistent
+ */
+ if ((!width) && (factor < MPT_ULTRA2)) {
+ factor = MPT_ULTRA2;
+ }
+
+ /* Save the data to the target structure.
+ */
+ target->minSyncFactor = factor;
+ target->maxOffset = offset;
+ target->maxWidth = width;
+
+ target->tflags |= MPT_TARGET_FLAGS_VALID_NEGO;
+
+ /* Disable unused features.
+ */
+ if (!width)
+ target->negoFlags |= MPT_TARGET_NO_NEGO_WIDE;
+
+ if (!offset)
+ target->negoFlags |= MPT_TARGET_NO_NEGO_SYNC;
+
+ if ( factor > MPT_ULTRA320 )
+ noQas = 0;
+
+ /* GEM, processor WORKAROUND
+ */
+ if ((target->inq_data[0] == TYPE_PROCESSOR) || (target->inq_data[0] > 0x08)) {
+ target->negoFlags |= (MPT_TARGET_NO_NEGO_WIDE | MPT_TARGET_NO_NEGO_SYNC);
+ pspi_data->dvStatus[id] |= MPT_SCSICFG_BLK_NEGO;
+ } else {
+ if (noQas && (pspi_data->noQas == 0)) {
+ pspi_data->noQas |= MPT_TARGET_NO_NEGO_QAS;
+ target->negoFlags |= MPT_TARGET_NO_NEGO_QAS;
+
+ /* Disable QAS in a mixed configuration case
+ */
+
+ ddvtprintk((KERN_INFO "Disabling QAS due to noQas=%02x on id=%d!\n", noQas, id));
+ for (ii = 0; ii < id; ii++) {
+ if ( (vdev = hd->Targets[ii]) ) {
+ vdev->negoFlags |= MPT_TARGET_NO_NEGO_QAS;
+ mptscsih_writeSDP1(hd, 0, ii, vdev->negoFlags);
+ }
+ }
+ }
+ }
+
+ /* Write SDP1 on this I/O to this target */
+ if (pspi_data->dvStatus[id] & MPT_SCSICFG_NEGOTIATE) {
+ ddvtprintk((KERN_INFO "MPT_SCSICFG_NEGOTIATE on id=%d!\n", id));
+ mptscsih_writeSDP1(hd, 0, id, hd->negoNvram);
+ pspi_data->dvStatus[id] &= ~MPT_SCSICFG_NEGOTIATE;
+ } else if (pspi_data->dvStatus[id] & MPT_SCSICFG_BLK_NEGO) {
+ ddvtprintk((KERN_INFO "MPT_SCSICFG_BLK_NEGO on id=%d!\n", id));
+ mptscsih_writeSDP1(hd, 0, id, MPT_SCSICFG_BLK_NEGO);
+ pspi_data->dvStatus[id] &= ~MPT_SCSICFG_BLK_NEGO;
+ }
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/* If DV disabled (negoNvram set to USE_NVARM) or if not LUN 0, return.
+ * Else set the NEED_DV flag after Read Capacity Issued (disks)
+ * or Mode Sense (cdroms).
+ *
+ * Tapes, initTarget will set this flag on completion of Inquiry command.
+ * Called only if DV_NOT_DONE flag is set
+ */
+static void mptscsih_set_dvflags(MPT_SCSI_HOST *hd, SCSIIORequest_t *pReq)
+{
+ u8 cmd;
+ ScsiCfgData *pSpi;
+
+ ddvtprintk((" set_dvflags: id=%d lun=%d negoNvram=%x cmd=%x\n",
+ pReq->TargetID, pReq->LUN[1], hd->negoNvram, pReq->CDB[0]));
+
+ if ((pReq->LUN[1] != 0) || (hd->negoNvram != 0))
+ return;
+
+ cmd = pReq->CDB[0];
+
+ if ((cmd == READ_CAPACITY) || (cmd == MODE_SENSE)) {
+ pSpi = &hd->ioc->spi_data;
+ if ((pSpi->isRaid & (1 << pReq->TargetID)) && pSpi->pIocPg3) {
+ /* Set NEED_DV for all hidden disks
+ */
+ Ioc3PhysDisk_t *pPDisk = pSpi->pIocPg3->PhysDisk;
+ int numPDisk = pSpi->pIocPg3->NumPhysDisks;
+
+ while (numPDisk) {
+ pSpi->dvStatus[pPDisk->PhysDiskID] |= MPT_SCSICFG_NEED_DV;
+ ddvtprintk(("NEED_DV set for phys disk id %d\n", pPDisk->PhysDiskID));
+ pPDisk++;
+ numPDisk--;
+ }
+ }
+ pSpi->dvStatus[pReq->TargetID] |= MPT_SCSICFG_NEED_DV;
+ ddvtprintk(("NEED_DV set for visible disk id %d\n", pReq->TargetID));
+ }
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * If no Target, bus reset on 1st I/O. Set the flag to
+ * prevent any future negotiations to this device.
+ */
+static void mptscsih_no_negotiate(MPT_SCSI_HOST *hd, int target_id)
+{
+
+ if ((hd->Targets) && (hd->Targets[target_id] == NULL))
+ hd->ioc->spi_data.dvStatus[target_id] |= MPT_SCSICFG_BLK_NEGO;
+
+ return;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * SCSI Config Page functionality ...
+ */
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/* mptscsih_setDevicePage1Flags - add Requested and Configuration fields flags
+ * based on width, factor and offset parameters.
+ * @width: bus width
+ * @factor: sync factor
+ * @offset: sync offset
+ * @requestedPtr: pointer to requested values (updated)
+ * @configurationPtr: pointer to configuration values (updated)
+ * @flags: flags to block WDTR or SDTR negotiation
+ *
+ * Return: None.
+ *
+ * Remark: Called by writeSDP1 and _dv_params
+ */
+static void
+mptscsih_setDevicePage1Flags (u8 width, u8 factor, u8 offset, int *requestedPtr, int *configurationPtr, u8 flags)
+{
+ u8 nowide = flags & MPT_TARGET_NO_NEGO_WIDE;
+ u8 nosync = flags & MPT_TARGET_NO_NEGO_SYNC;
+
+ *configurationPtr = 0;
+ *requestedPtr = width ? MPI_SCSIDEVPAGE1_RP_WIDE : 0;
+ *requestedPtr |= (offset << 16) | (factor << 8);
+
+ if (width && offset && !nowide && !nosync) {
+ if (factor < MPT_ULTRA160) {
+ *requestedPtr |= (MPI_SCSIDEVPAGE1_RP_IU + MPI_SCSIDEVPAGE1_RP_DT);
+ if ((flags & MPT_TARGET_NO_NEGO_QAS) == 0)
+ *requestedPtr |= MPI_SCSIDEVPAGE1_RP_QAS;
+ if (flags & MPT_TAPE_NEGO_IDP)
+ *requestedPtr |= 0x08000000;
+ } else if (factor < MPT_ULTRA2) {
+ *requestedPtr |= MPI_SCSIDEVPAGE1_RP_DT;
+ }
+ }
+
+ if (nowide)
+ *configurationPtr |= MPI_SCSIDEVPAGE1_CONF_WDTR_DISALLOWED;
+
+ if (nosync)
+ *configurationPtr |= MPI_SCSIDEVPAGE1_CONF_SDTR_DISALLOWED;
+
+ return;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/* mptscsih_writeSDP1 - write SCSI Device Page 1
+ * @hd: Pointer to a SCSI Host Strucutre
+ * @portnum: IOC port number
+ * @target_id: writeSDP1 for single ID
+ * @flags: MPT_SCSICFG_ALL_IDS, MPT_SCSICFG_USE_NVRAM, MPT_SCSICFG_BLK_NEGO
+ *
+ * Return: -EFAULT if read of config page header fails
+ * or 0 if success.
+ *
+ * Remark: If a target has been found, the settings from the
+ * target structure are used, else the device is set
+ * to async/narrow.
+ *
+ * Remark: Called during init and after a FW reload.
+ * Remark: We do not wait for a return, write pages sequentially.
+ */
+static int
+mptscsih_writeSDP1(MPT_SCSI_HOST *hd, int portnum, int target_id, int flags)
+{
+ MPT_ADAPTER *ioc = hd->ioc;
+ Config_t *pReq;
+ SCSIDevicePage1_t *pData;
+ VirtDevice *pTarget;
+ MPT_FRAME_HDR *mf;
+ dma_addr_t dataDma;
+ u16 req_idx;
+ u32 frameOffset;
+ u32 requested, configuration, flagsLength;
+ int ii, nvram;
+ int id = 0, maxid = 0;
+ u8 width;
+ u8 factor;
+ u8 offset;
+ u8 bus = 0;
+ u8 negoFlags;
+ u8 maxwidth, maxoffset, maxfactor;
+
+ if (ioc->spi_data.sdp1length == 0)
+ return 0;
+
+ if (flags & MPT_SCSICFG_ALL_IDS) {
+ id = 0;
+ maxid = ioc->sh->max_id - 1;
+ } else if (ioc->sh) {
+ id = target_id;
+ maxid = min_t(int, id, ioc->sh->max_id - 1);
+ }
+
+ for (; id <= maxid; id++) {
+
+ if (id == ioc->pfacts[portnum].PortSCSIID)
+ continue;
+
+ /* Use NVRAM to get adapter and target maximums
+ * Data over-riden by target structure information, if present
+ */
+ maxwidth = ioc->spi_data.maxBusWidth;
+ maxoffset = ioc->spi_data.maxSyncOffset;
+ maxfactor = ioc->spi_data.minSyncFactor;
+ if (ioc->spi_data.nvram && (ioc->spi_data.nvram[id] != MPT_HOST_NVRAM_INVALID)) {
+ nvram = ioc->spi_data.nvram[id];
+
+ if (maxwidth)
+ maxwidth = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
+
+ if (maxoffset > 0) {
+ maxfactor = (nvram & MPT_NVRAM_SYNC_MASK) >> 8;
+ if (maxfactor == 0) {
+ /* Key for async */
+ maxfactor = MPT_ASYNC;
+ maxoffset = 0;
+ } else if (maxfactor < ioc->spi_data.minSyncFactor) {
+ maxfactor = ioc->spi_data.minSyncFactor;
+ }
+ } else
+ maxfactor = MPT_ASYNC;
+ }
+
+ /* Set the negotiation flags.
+ */
+ negoFlags = ioc->spi_data.noQas;
+ if (!maxwidth)
+ negoFlags |= MPT_TARGET_NO_NEGO_WIDE;
+
+ if (!maxoffset)
+ negoFlags |= MPT_TARGET_NO_NEGO_SYNC;
+
+ if (flags & MPT_SCSICFG_USE_NVRAM) {
+ width = maxwidth;
+ factor = maxfactor;
+ offset = maxoffset;
+ } else {
+ width = 0;
+ factor = MPT_ASYNC;
+ offset = 0;
+ //negoFlags = 0;
+ //negoFlags = MPT_TARGET_NO_NEGO_SYNC;
+ }
+
+ /* If id is not a raid volume, get the updated
+ * transmission settings from the target structure.
+ */
+ if (hd->Targets && (pTarget = hd->Targets[id]) && !pTarget->raidVolume) {
+ width = pTarget->maxWidth;
+ factor = pTarget->minSyncFactor;
+ offset = pTarget->maxOffset;
+ negoFlags = pTarget->negoFlags;
+ }
+
+#ifdef MPTSCSIH_ENABLE_DOMAIN_VALIDATION
+ /* Force to async and narrow if DV has not been executed
+ * for this ID
+ */
+ if ((hd->ioc->spi_data.dvStatus[id] & MPT_SCSICFG_DV_NOT_DONE) != 0) {
+ width = 0;
+ factor = MPT_ASYNC;
+ offset = 0;
+ }
+#endif
+
+ if (flags & MPT_SCSICFG_BLK_NEGO)
+ negoFlags = MPT_TARGET_NO_NEGO_WIDE | MPT_TARGET_NO_NEGO_SYNC;
+
+ mptscsih_setDevicePage1Flags(width, factor, offset,
+ &requested, &configuration, negoFlags);
+ dnegoprintk(("writeSDP1: id=%d width=%d factor=%x offset=%x negoFlags=%x request=%x config=%x\n",
+ target_id, width, factor, offset, negoFlags, requested, configuration));
+
+ /* Get a MF for this command.
+ */
+ if ((mf = mpt_get_msg_frame(ScsiDoneCtx, ioc)) == NULL) {
+ dprintk((MYIOC_s_WARN_FMT "write SDP1: no msg frames!\n",
+ ioc->name));
+ return -EAGAIN;
+ }
+
+ ddvprintk((MYIOC_s_INFO_FMT "WriteSDP1 (mf=%p, id=%d, req=0x%x, cfg=0x%x)\n",
+ hd->ioc->name, mf, id, requested, configuration));
+
+
+ /* Set the request and the data pointers.
+ * Request takes: 36 bytes (32 bit SGE)
+ * SCSI Device Page 1 requires 16 bytes
+ * 40 + 16 <= size of SCSI IO Request = 56 bytes
+ * and MF size >= 64 bytes.
+ * 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(SCSIDevicePage1_t);
+
+ pData = (SCSIDevicePage1_t *)((u8 *) mf + frameOffset);
+ dataDma = ioc->req_frames_dma + (req_idx * ioc->req_sz) + frameOffset;
+
+ /* 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;
+ }
+ pReq->Header.PageVersion = ioc->spi_data.sdp1version;
+ pReq->Header.PageLength = ioc->spi_data.sdp1length;
+ pReq->Header.PageNumber = 1;
+ pReq->Header.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
+ pReq->PageAddress = cpu_to_le32(id | (bus << 8 ));
+
+ /* Add a SGE to the config request.
+ */
+ flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE | ioc->spi_data.sdp1length * 4;
+
+ mpt_add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma);
+
+ /* Set up the common data portion
+ */
+ pData->Header.PageVersion = pReq->Header.PageVersion;
+ pData->Header.PageLength = pReq->Header.PageLength;
+ pData->Header.PageNumber = pReq->Header.PageNumber;
+ pData->Header.PageType = pReq->Header.PageType;
+ pData->RequestedParameters = cpu_to_le32(requested);
+ pData->Reserved = 0;
+ pData->Configuration = cpu_to_le32(configuration);
+
+ dprintk((MYIOC_s_INFO_FMT
+ "write SDP1: id %d pgaddr 0x%x req 0x%x config 0x%x\n",
+ ioc->name, id, (id | (bus<<8)),
+ requested, configuration));
+
+ mpt_put_msg_frame(ScsiDoneCtx, ioc, mf);
+ }
+
+ return 0;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/* mptscsih_writeIOCPage4 - write IOC Page 4
+ * @hd: Pointer to a SCSI Host Structure
+ * @target_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
+mptscsih_writeIOCPage4(MPT_SCSI_HOST *hd, int target_id, int bus)
+{
+ 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(ScsiDoneCtx, ioc)) == NULL) {
+ dprintk((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 = target_id;
+ IOCPage4Ptr->SEP[ii].SEPBus = bus;
+ pReq->Header = IOCPage4Ptr->Header;
+ pReq->PageAddress = cpu_to_le32(target_id | (bus << 8 ));
+
+ /* Add a SGE to the config request.
+ */
+ flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE |
+ (IOCPage4Ptr->Header.PageLength + ii) * 4;
+
+ mpt_add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma);
+
+ dinitprintk((MYIOC_s_INFO_FMT
+ "writeIOCPage4: MaxSEP=%d ActiveSEP=%d id=%d bus=%d\n",
+ ioc->name, IOCPage4Ptr->MaxSEP, IOCPage4Ptr->ActiveSEP, target_id, bus));
+
+ mpt_put_msg_frame(ScsiDoneCtx, ioc, mf);
+
+ return 0;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ * 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.
+ */
+static int
+mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
+{
+ MPT_SCSI_HOST *hd;
+ SCSIIORequest_t *pReq;
+ int completionCode;
+ u16 req_idx;
+
+ if ((mf == NULL) ||
+ (mf >= MPT_INDEX_2_MFPTR(ioc, ioc->req_depth))) {
+ printk(MYIOC_s_ERR_FMT
+ "ScanDvComplete, %s req frame ptr! (=%p)\n",
+ ioc->name, mf?"BAD":"NULL", (void *) mf);
+ goto wakeup;
+ }
+
+ hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
+ del_timer(&hd->timer);
+ req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
+ hd->ScsiLookup[req_idx] = NULL;
+ pReq = (SCSIIORequest_t *) mf;
+
+ if (mf != hd->cmdPtr) {
+ printk(MYIOC_s_WARN_FMT "ScanDvComplete (mf=%p, cmdPtr=%p, idx=%d)\n",
+ hd->ioc->name, (void *)mf, (void *) hd->cmdPtr, req_idx);
+ }
+ hd->cmdPtr = NULL;
+
+ ddvprintk((MYIOC_s_INFO_FMT "ScanDvComplete (mf=%p,mr=%p,idx=%d)\n",
+ hd->ioc->name, mf, mr, req_idx));
+
+ hd->pLocal = &hd->localReply;
+ hd->pLocal->scsiStatus = 0;
+
+ /* If target struct exists, clear sense valid flag.
+ */
+ if (mr == NULL) {
+ completionCode = MPT_SCANDV_GOOD;
+ } else {
+ SCSIIOReply_t *pReply;
+ u16 status;
+ u8 scsi_status;
+
+ pReply = (SCSIIOReply_t *) mr;
+
+ status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
+ scsi_status = pReply->SCSIStatus;
+
+ ddvtprintk((KERN_NOTICE " IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh, IOCLogInfo=%08xh\n",
+ status, pReply->SCSIState, scsi_status,
+ le32_to_cpu(pReply->IOCLogInfo)));
+
+ switch(status) {
+
+ case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
+ completionCode = 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 */
+ completionCode = MPT_SCANDV_DID_RESET;
+ 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) {
+ ConfigReply_t *pr = (ConfigReply_t *)mr;
+ completionCode = MPT_SCANDV_GOOD;
+ hd->pLocal->header.PageVersion = pr->Header.PageVersion;
+ hd->pLocal->header.PageLength = pr->Header.PageLength;
+ hd->pLocal->header.PageNumber = pr->Header.PageNumber;
+ hd->pLocal->header.PageType = pr->Header.PageType;
+
+ } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
+ /* If the RAID Volume request is successful,
+ * return GOOD, else indicate that
+ * some type of error occurred.
+ */
+ MpiRaidActionReply_t *pr = (MpiRaidActionReply_t *)mr;
+ if (pr->ActionStatus == MPI_RAID_ACTION_ASTATUS_SUCCESS)
+ completionCode = MPT_SCANDV_GOOD;
+ else
+ completionCode = MPT_SCANDV_SOME_ERROR;
+
+ } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
+ u8 *sense_data;
+ int sz;
+
+ /* save sense data in global structure
+ */
+ completionCode = MPT_SCANDV_SENSE;
+ hd->pLocal->scsiStatus = scsi_status;
+ sense_data = ((u8 *)hd->ioc->sense_buf_pool +
+ (req_idx * MPT_SENSE_BUFFER_ALLOC));
+
+ sz = min_t(int, pReq->SenseBufferLength,
+ SCSI_STD_SENSE_BYTES);
+ memcpy(hd->pLocal->sense, sense_data, sz);
+
+ ddvprintk((KERN_NOTICE " Check Condition, sense ptr %p\n",
+ sense_data));
+ } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
+ if (pReq->CDB[0] == INQUIRY)
+ completionCode = MPT_SCANDV_ISSUE_SENSE;
+ else
+ completionCode = MPT_SCANDV_DID_RESET;
+ }
+ else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
+ completionCode = MPT_SCANDV_DID_RESET;
+ else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
+ completionCode = MPT_SCANDV_DID_RESET;
+ else {
+ completionCode = MPT_SCANDV_GOOD;
+ hd->pLocal->scsiStatus = scsi_status;
+ }
+ break;
+
+ case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
+ if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
+ completionCode = MPT_SCANDV_DID_RESET;
+ else
+ completionCode = MPT_SCANDV_SOME_ERROR;
+ break;
+
+ default:
+ completionCode = MPT_SCANDV_SOME_ERROR;
+ break;
+
+ } /* switch(status) */
+
+ ddvtprintk((KERN_NOTICE " completionCode set to %08xh\n",
+ completionCode));
+ } /* end of address reply case */
+
+ hd->pLocal->completion = completionCode;
+
+ /* MF and RF are freed in mpt_interrupt
+ */
+wakeup:
+ /* Free Chain buffers (will never chain) in scan or dv */
+ //mptscsih_freeChainBuffers(ioc, req_idx);
+
+ /*
+ * Wake up the original calling thread
+ */
+ scandv_wait_done = 1;
+ wake_up(&scandv_waitq);
+
+ return 1;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/* mptscsih_timer_expired - Call back for timer process.
+ * Used only for dv functionality.
+ * @data: Pointer to MPT_SCSI_HOST recast as an unsigned long
+ *
+ */
+static void mptscsih_timer_expired(unsigned long data)
+{
+ MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) data;
+
+ ddvprintk((MYIOC_s_WARN_FMT "Timer Expired! Cmd %p\n", hd->ioc->name, hd->cmdPtr));
+
+ if (hd->cmdPtr) {
+ MPIHeader_t *cmd = (MPIHeader_t *)hd->cmdPtr;
+
+ if (cmd->Function == MPI_FUNCTION_SCSI_IO_REQUEST) {
+ /* Desire to issue a task management request here.
+ * TM requests MUST be single threaded.
+ * If old eh code and no TM current, issue request.
+ * If new eh code, do nothing. Wait for OS cmd timeout
+ * for bus reset.
+ */
+ ddvtprintk((MYIOC_s_NOTE_FMT "DV Cmd Timeout: NoOp\n", hd->ioc->name));
+ } else {
+ /* Perform a FW reload */
+ if (mpt_HardResetHandler(hd->ioc, NO_SLEEP) < 0) {
+ printk(MYIOC_s_WARN_FMT "Firmware Reload FAILED!\n", hd->ioc->name);
+ }
+ }
+ } else {
+ /* This should NEVER happen */
+ printk(MYIOC_s_WARN_FMT "Null cmdPtr!!!!\n", hd->ioc->name);
+ }
+
+ /* No more processing.
+ * TM call will generate an interrupt for SCSI TM Management.
+ * The FW will reply to all outstanding commands, callback will finish cleanup.
+ * Hard reset clean-up will free all resources.
+ */
+ ddvprintk((MYIOC_s_WARN_FMT "Timer Expired Complete!\n", hd->ioc->name));
+
+ return;
+}
+
+#ifdef MPTSCSIH_ENABLE_DOMAIN_VALIDATION
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/* mptscsih_do_raid - Format and Issue a RAID volume request message.
+ * @hd: Pointer to scsi host structure
+ * @action: What do be done.
+ * @id: Logical target id.
+ * @bus: Target locations bus.
+ *
+ * Returns: < 0 on a fatal error
+ * 0 on success
+ *
+ * Remark: Wait to return until reply processed by the ISR.
+ */
+static int
+mptscsih_do_raid(MPT_SCSI_HOST *hd, u8 action, INTERNAL_CMD *io)
+{
+ MpiRaidActionRequest_t *pReq;
+ MPT_FRAME_HDR *mf;
+ int in_isr;
+
+ in_isr = in_interrupt();
+ if (in_isr) {
+ dprintk((MYIOC_s_WARN_FMT "Internal raid request not allowed in ISR context!\n",
+ hd->ioc->name));
+ return -EPERM;
+ }
+
+ /* Get and Populate a free Frame
+ */
+ if ((mf = mpt_get_msg_frame(ScsiScanDvCtx, hd->ioc)) == NULL) {
+ ddvprintk((MYIOC_s_WARN_FMT "_do_raid: no msg frames!\n",
+ hd->ioc->name));
+ return -EAGAIN;
+ }
+ pReq = (MpiRaidActionRequest_t *)mf;
+ pReq->Action = action;
+ pReq->Reserved1 = 0;
+ pReq->ChainOffset = 0;
+ pReq->Function = MPI_FUNCTION_RAID_ACTION;
+ pReq->VolumeID = io->id;
+ pReq->VolumeBus = io->bus;
+ pReq->PhysDiskNum = io->physDiskNum;
+ pReq->MsgFlags = 0;
+ pReq->Reserved2 = 0;
+ pReq->ActionDataWord = 0; /* Reserved for this action */
+ //pReq->ActionDataSGE = 0;
+
+ mpt_add_sge((char *)&pReq->ActionDataSGE,
+ MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1);
+
+ ddvprintk((MYIOC_s_INFO_FMT "RAID Volume action %x id %d\n",
+ hd->ioc->name, action, io->id));
+
+ hd->pLocal = NULL;
+ hd->timer.expires = jiffies + HZ*10; /* 10 second timeout */
+ scandv_wait_done = 0;
+
+ /* Save cmd pointer, for resource free if timeout or
+ * FW reload occurs
+ */
+ hd->cmdPtr = mf;
+
+ add_timer(&hd->timer);
+ mpt_put_msg_frame(ScsiScanDvCtx, hd->ioc, mf);
+ wait_event(scandv_waitq, scandv_wait_done);
+
+ if ((hd->pLocal == NULL) || (hd->pLocal->completion != MPT_SCANDV_GOOD))
+ return -1;
+
+ return 0;
+}
+#endif /* ~MPTSCSIH_ENABLE_DOMAIN_VALIDATION */
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * 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;
+ SCSIIORequest_t ReqCopy;
+ int my_idx, ii, dir;
+ int rc, cmdTimeout;
+ int in_isr;
+ char cmdLen;
+ char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
+ char cmd = io->cmd;
+
+ in_isr = in_interrupt();
+ if (in_isr) {
+ dprintk((MYIOC_s_WARN_FMT "Internal SCSI IO request not allowed in ISR context!\n",
+ hd->ioc->name));
+ return -EPERM;
+ }
+
+
+ /* Set command specific information
+ */
+ switch (cmd) {
+ case INQUIRY:
+ cmdLen = 6;
+ dir = MPI_SCSIIO_CONTROL_READ;
+ CDB[0] = cmd;
+ CDB[4] = io->size;
+ cmdTimeout = 10;
+ break;
+
+ case TEST_UNIT_READY:
+ cmdLen = 6;
+ dir = MPI_SCSIIO_CONTROL_READ;
+ cmdTimeout = 10;
+ break;
+
+ case START_STOP:
+ cmdLen = 6;
+ dir = MPI_SCSIIO_CONTROL_READ;
+ CDB[0] = cmd;
+ CDB[4] = 1; /*Spin up the disk */
+ cmdTimeout = 15;
+ break;
+
+ case REQUEST_SENSE:
+ cmdLen = 6;
+ CDB[0] = cmd;
+ CDB[4] = io->size;
+ dir = MPI_SCSIIO_CONTROL_READ;
+ cmdTimeout = 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;
+ cmdTimeout = 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;
+ cmdTimeout = 10;
+ break;
+
+ case RESERVE:
+ cmdLen = 6;
+ dir = MPI_SCSIIO_CONTROL_READ;
+ CDB[0] = cmd;
+ cmdTimeout = 10;
+ break;
+
+ case RELEASE:
+ cmdLen = 6;
+ dir = MPI_SCSIIO_CONTROL_READ;
+ CDB[0] = cmd;
+ cmdTimeout = 10;
+ break;
+
+ case SYNCHRONIZE_CACHE:
+ cmdLen = 10;
+ dir = MPI_SCSIIO_CONTROL_READ;
+ CDB[0] = cmd;
+// CDB[1] = 0x02; /* set immediate bit */
+ cmdTimeout = 10;
+ break;
+
+ default:
+ /* Error Case */
+ return -EFAULT;
+ }
+
+ /* Get and Populate a free Frame
+ */
+ if ((mf = mpt_get_msg_frame(ScsiScanDvCtx, hd->ioc)) == NULL) {
+ ddvprintk((MYIOC_s_WARN_FMT "No msg frames!\n",
+ hd->ioc->name));
+ return -EBUSY;
+ }
+
+ 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->bus;
+ 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();
+ /* MsgContext set in mpt_get_msg_fram call */
+
+ for (ii=0; ii < 8; ii++)
+ pScsiReq->LUN[ii] = 0;
+ pScsiReq->LUN[1] = io->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);
+ ddvprintk((MYIOC_s_INFO_FMT "Untagged! 0x%2x\n",
+ hd->ioc->name, cmd));
+ }
+
+ for (ii=0; ii < 16; ii++)
+ pScsiReq->CDB[ii] = CDB[ii];
+
+ pScsiReq->DataLength = cpu_to_le32(io->size);
+ pScsiReq->SenseBufferLowAddr = cpu_to_le32(hd->ioc->sense_buf_low_dma
+ + (my_idx * MPT_SENSE_BUFFER_ALLOC));
+
+ ddvprintk((MYIOC_s_INFO_FMT "Sending Command 0x%x for (%d:%d:%d)\n",
+ hd->ioc->name, cmd, io->bus, io->id, io->lun));
+
+ if (dir == MPI_SCSIIO_CONTROL_READ) {
+ mpt_add_sge((char *) &pScsiReq->SGL,
+ MPT_SGE_FLAGS_SSIMPLE_READ | io->size,
+ io->data_dma);
+ } else {
+ mpt_add_sge((char *) &pScsiReq->SGL,
+ MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size,
+ io->data_dma);
+ }
+
+ /* The ISR will free the request frame, but we need
+ * the information to initialize the target. Duplicate.
+ */
+ memcpy(&ReqCopy, pScsiReq, sizeof(SCSIIORequest_t));
+
+ /* Issue this command after:
+ * finish init
+ * add timer
+ * Wait until the reply has been received
+ * ScsiScanDvCtx callback function will
+ * set hd->pLocal;
+ * set scandv_wait_done and call wake_up
+ */
+ hd->pLocal = NULL;
+ hd->timer.expires = jiffies + HZ*cmdTimeout;
+ scandv_wait_done = 0;
+
+ /* Save cmd pointer, for resource free if timeout or
+ * FW reload occurs
+ */
+ hd->cmdPtr = mf;
+
+ add_timer(&hd->timer);
+ mpt_put_msg_frame(ScsiScanDvCtx, hd->ioc, mf);
+ wait_event(scandv_waitq, scandv_wait_done);
+
+ if (hd->pLocal) {
+ rc = hd->pLocal->completion;
+ hd->pLocal->skip = 0;
+
+ /* Always set fatal error codes in some cases.
+ */
+ if (rc == MPT_SCANDV_SELECTION_TIMEOUT)
+ rc = -ENXIO;
+ else if (rc == MPT_SCANDV_SOME_ERROR)
+ rc = -rc;
+ } else {
+ rc = -EFAULT;
+ /* This should never happen. */
+ ddvprintk((MYIOC_s_INFO_FMT "_do_cmd: Null pLocal!!!\n",
+ hd->ioc->name));
+ }
+
+ return rc;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
+ * @hd: Pointer to MPT_SCSI_HOST structure
+ * @portnum: IOC port number
+ *
+ * Uses the ISR, but with special processing.
+ * MUST be single-threaded.
+ *
+ * Return: 0 on completion
+ */
+static int
+mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, int portnum)
+{
+ MPT_ADAPTER *ioc= hd->ioc;
+ VirtDevice *pTarget;
+ SCSIDevicePage1_t *pcfg1Data = NULL;
+ INTERNAL_CMD iocmd;
+ CONFIGPARMS cfg;
+ dma_addr_t cfg1_dma_addr = -1;
+ ConfigPageHeader_t header1;
+ int bus = 0;
+ int id = 0;
+ int lun;
+ int indexed_lun, lun_index;
+ int hostId = ioc->pfacts[portnum].PortSCSIID;
+ int max_id;
+ int requested, configuration, data;
+ int doConfig = 0;
+ u8 flags, factor;
+
+ max_id = ioc->sh->max_id - 1;
+
+ /* 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;
+
+ /* No SCSI hosts
+ */
+ if (hd->Targets == NULL)
+ return 0;
+
+ /* Skip the host
+ */
+ if (id == hostId)
+ id++;
+
+ /* Write SDP1 for all SCSI devices
+ * Alloc memory and set up config buffer
+ */
+ if (ioc->bus_type == SCSI) {
+ if (ioc->spi_data.sdp1length > 0) {
+ pcfg1Data = (SCSIDevicePage1_t *)pci_alloc_consistent(ioc->pcidev,
+ ioc->spi_data.sdp1length * 4, &cfg1_dma_addr);
+
+ if (pcfg1Data != NULL) {
+ doConfig = 1;
+ header1.PageVersion = ioc->spi_data.sdp1version;
+ header1.PageLength = ioc->spi_data.sdp1length;
+ header1.PageNumber = 1;
+ header1.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
+ cfg.hdr = &header1;
+ cfg.physAddr = cfg1_dma_addr;
+ cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+ cfg.dir = 1;
+ cfg.timeout = 0;
+ }
+ }
+ }
+
+ /* loop through all devices on this port
+ */
+ while (bus < MPT_MAX_BUS) {
+ iocmd.bus = bus;
+ iocmd.id = id;
+ pTarget = hd->Targets[(int)id];
+
+ if (doConfig) {
+
+ /* Set the negotiation flags */
+ if (pTarget && (pTarget = hd->Targets[id]) && !pTarget->raidVolume) {
+ flags = pTarget->negoFlags;
+ } else {
+ flags = hd->ioc->spi_data.noQas;
+ if (hd->ioc->spi_data.nvram && (hd->ioc->spi_data.nvram[id] != MPT_HOST_NVRAM_INVALID)) {
+ data = hd->ioc->spi_data.nvram[id];
+
+ if (data & MPT_NVRAM_WIDE_DISABLE)
+ flags |= MPT_TARGET_NO_NEGO_WIDE;
+
+ factor = (data & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT;
+ if ((factor == 0) || (factor == MPT_ASYNC))
+ flags |= MPT_TARGET_NO_NEGO_SYNC;
+ }
+ }
+
+ /* Force to async, narrow */
+ mptscsih_setDevicePage1Flags(0, MPT_ASYNC, 0, &requested,
+ &configuration, flags);
+ dnegoprintk(("syncronize cache: id=%d width=0 factor=MPT_ASYNC "
+ "offset=0 negoFlags=%x request=%x config=%x\n",
+ id, flags, requested, configuration));
+ pcfg1Data->RequestedParameters = le32_to_cpu(requested);
+ pcfg1Data->Reserved = 0;
+ pcfg1Data->Configuration = le32_to_cpu(configuration);
+ cfg.pageAddr = (bus<<8) | id;
+ mpt_config(hd->ioc, &cfg);
+ }
+
+ /* If target Ptr NULL or if this target is NOT a disk, skip.
+ */
+ if ((pTarget) && (pTarget->tflags & MPT_TARGET_FLAGS_Q_YES)){
+ for (lun=0; lun <= MPT_LAST_LUN; lun++) {
+ /* If LUN present, issue the command
+ */
+ lun_index = (lun >> 5); /* 32 luns per lun_index */
+ indexed_lun = (lun % 32);
+ if (pTarget->luns[lun_index] & (1<<indexed_lun)) {
+ iocmd.lun = lun;
+ (void) mptscsih_do_cmd(hd, &iocmd);
+ }
+ }
+ }
+
+ /* get next relevant device */
+ id++;
+
+ if (id == hostId)
+ id++;
+
+ if (id > max_id) {
+ id = 0;
+ bus++;
+ }
+ }
+
+ if (pcfg1Data) {
+ pci_free_consistent(ioc->pcidev, header1.PageLength * 4, pcfg1Data, cfg1_dma_addr);
+ }
+
+ return 0;
+}
+
+#ifdef MPTSCSIH_ENABLE_DOMAIN_VALIDATION
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * mptscsih_domainValidation - Top level handler for domain validation.
+ * @hd: Pointer to MPT_SCSI_HOST structure.
+ *
+ * Uses the ISR, but with special processing.
+ * Called from schedule, should not be in interrupt mode.
+ * While thread alive, do dv for all devices needing dv
+ *
+ * Return: None.
+ */
+static void
+mptscsih_domainValidation(void *arg)
+{
+ MPT_SCSI_HOST *hd;
+ MPT_ADAPTER *ioc;
+ unsigned long flags;
+ int id, maxid, dvStatus, did;
+ int ii, isPhysDisk;
+
+ spin_lock_irqsave(&dvtaskQ_lock, flags);
+ dvtaskQ_active = 1;
+ if (dvtaskQ_release) {
+ dvtaskQ_active = 0;
+ spin_unlock_irqrestore(&dvtaskQ_lock, flags);
+ return;
+ }
+ spin_unlock_irqrestore(&dvtaskQ_lock, flags);
+
+ /* For this ioc, loop through all devices and do dv to each device.
+ * When complete with this ioc, search through the ioc list, and
+ * for each scsi ioc found, do dv for all devices. Exit when no
+ * device needs dv.
+ */
+ did = 1;
+ while (did) {
+ did = 0;
+ list_for_each_entry(ioc, &ioc_list, list) {
+ spin_lock_irqsave(&dvtaskQ_lock, flags);
+ if (dvtaskQ_release) {
+ dvtaskQ_active = 0;
+ spin_unlock_irqrestore(&dvtaskQ_lock, flags);
+ return;
+ }
+ spin_unlock_irqrestore(&dvtaskQ_lock, flags);
+
+ msleep(250);
+
+ /* DV only to SCSI adapters */
+ if (ioc->bus_type != SCSI)
+ continue;
+
+ /* Make sure everything looks ok */
+ if (ioc->sh == NULL)
+ continue;
+
+ hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
+ if (hd == NULL)
+ continue;
+
+ if ((ioc->spi_data.forceDv & MPT_SCSICFG_RELOAD_IOC_PG3) != 0) {
+ mpt_read_ioc_pg_3(ioc);
+ if (ioc->spi_data.pIocPg3) {
+ Ioc3PhysDisk_t *pPDisk = ioc->spi_data.pIocPg3->PhysDisk;
+ int numPDisk = ioc->spi_data.pIocPg3->NumPhysDisks;
+
+ while (numPDisk) {
+ if (ioc->spi_data.dvStatus[pPDisk->PhysDiskID] & MPT_SCSICFG_DV_NOT_DONE)
+ ioc->spi_data.dvStatus[pPDisk->PhysDiskID] |= MPT_SCSICFG_NEED_DV;
+
+ pPDisk++;
+ numPDisk--;
+ }
+ }
+ ioc->spi_data.forceDv &= ~MPT_SCSICFG_RELOAD_IOC_PG3;
+ }
+
+ maxid = min_t(int, ioc->sh->max_id, MPT_MAX_SCSI_DEVICES);
+
+ for (id = 0; id < maxid; id++) {
+ spin_lock_irqsave(&dvtaskQ_lock, flags);
+ if (dvtaskQ_release) {
+ dvtaskQ_active = 0;
+ spin_unlock_irqrestore(&dvtaskQ_lock, flags);
+ return;
+ }
+ spin_unlock_irqrestore(&dvtaskQ_lock, flags);
+ dvStatus = hd->ioc->spi_data.dvStatus[id];
+
+ if (dvStatus & MPT_SCSICFG_NEED_DV) {
+ did++;
+ hd->ioc->spi_data.dvStatus[id] |= MPT_SCSICFG_DV_PENDING;
+ hd->ioc->spi_data.dvStatus[id] &= ~MPT_SCSICFG_NEED_DV;
+
+ msleep(250);
+
+ /* If hidden phys disk, block IO's to all
+ * raid volumes
+ * else, process normally
+ */
+ isPhysDisk = mptscsih_is_phys_disk(ioc, id);
+ if (isPhysDisk) {
+ for (ii=0; ii < MPT_MAX_SCSI_DEVICES; ii++) {
+ if (hd->ioc->spi_data.isRaid & (1 << ii)) {
+ hd->ioc->spi_data.dvStatus[ii] |= MPT_SCSICFG_DV_PENDING;
+ }
+ }
+ }
+
+ if (mptscsih_doDv(hd, 0, id) == 1) {
+ /* Untagged device was busy, try again
+ */
+ hd->ioc->spi_data.dvStatus[id] |= MPT_SCSICFG_NEED_DV;
+ hd->ioc->spi_data.dvStatus[id] &= ~MPT_SCSICFG_DV_PENDING;
+ } else {
+ /* DV is complete. Clear flags.
+ */
+ hd->ioc->spi_data.dvStatus[id] &= ~(MPT_SCSICFG_DV_NOT_DONE | MPT_SCSICFG_DV_PENDING);
+ }
+
+ if (isPhysDisk) {
+ for (ii=0; ii < MPT_MAX_SCSI_DEVICES; ii++) {
+ if (hd->ioc->spi_data.isRaid & (1 << ii)) {
+ hd->ioc->spi_data.dvStatus[ii] &= ~MPT_SCSICFG_DV_PENDING;
+ }
+ }
+ }
+
+ if (hd->ioc->spi_data.noQas)
+ mptscsih_qas_check(hd, id);
+ }
+ }
+ }
+ }
+
+ spin_lock_irqsave(&dvtaskQ_lock, flags);
+ dvtaskQ_active = 0;
+ spin_unlock_irqrestore(&dvtaskQ_lock, flags);
+
+ return;
+}
+
+/* Search IOC page 3 to determine if this is hidden physical disk
+ */
+static int mptscsih_is_phys_disk(MPT_ADAPTER *ioc, int id)
+{
+ if (ioc->spi_data.pIocPg3) {
+ Ioc3PhysDisk_t *pPDisk = ioc->spi_data.pIocPg3->PhysDisk;
+ int numPDisk = ioc->spi_data.pIocPg3->NumPhysDisks;
+
+ while (numPDisk) {
+ if (pPDisk->PhysDiskID == id) {
+ return 1;
+ }
+ pPDisk++;
+ numPDisk--;
+ }
+ }
+ return 0;
+}
+
+/* Write SDP1 if no QAS has been enabled
+ */
+static void mptscsih_qas_check(MPT_SCSI_HOST *hd, int id)
+{
+ VirtDevice *pTarget;
+ int ii;
+
+ if (hd->Targets == NULL)
+ return;
+
+ for (ii=0; ii < MPT_MAX_SCSI_DEVICES; ii++) {
+ if (ii == id)
+ continue;
+
+ if ((hd->ioc->spi_data.dvStatus[ii] & MPT_SCSICFG_DV_NOT_DONE) != 0)
+ continue;
+
+ pTarget = hd->Targets[ii];
+
+ if ((pTarget != NULL) && (!pTarget->raidVolume)) {
+ if ((pTarget->negoFlags & hd->ioc->spi_data.noQas) == 0) {
+ pTarget->negoFlags |= hd->ioc->spi_data.noQas;
+ dnegoprintk(("writeSDP1: id=%d flags=0\n", id));
+ mptscsih_writeSDP1(hd, 0, ii, 0);
+ }
+ } else {
+ if (mptscsih_is_phys_disk(hd->ioc, ii) == 1) {
+ dnegoprintk(("writeSDP1: id=%d SCSICFG_USE_NVRAM\n", id));
+ mptscsih_writeSDP1(hd, 0, ii, MPT_SCSICFG_USE_NVRAM);
+ }
+ }
+ }
+ return;
+}
+
+
+
+#define MPT_GET_NVRAM_VALS 0x01
+#define MPT_UPDATE_MAX 0x02
+#define MPT_SET_MAX 0x04
+#define MPT_SET_MIN 0x08
+#define MPT_FALLBACK 0x10
+#define MPT_SAVE 0x20
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/**
+ * mptscsih_doDv - Perform domain validation to a target.
+ * @hd: Pointer to MPT_SCSI_HOST structure.
+ * @portnum: IOC port number.
+ * @target: Physical ID of this target
+ *
+ * Uses the ISR, but with special processing.
+ * MUST be single-threaded.
+ * Test will exit if target is at async & narrow.
+ *
+ * Return: None.
+ */
+static int
+mptscsih_doDv(MPT_SCSI_HOST *hd, int bus_number, int id)
+{
+ MPT_ADAPTER *ioc = hd->ioc;
+ VirtDevice *pTarget;
+ SCSIDevicePage1_t *pcfg1Data;
+ SCSIDevicePage0_t *pcfg0Data;
+ u8 *pbuf1;
+ u8 *pbuf2;
+ u8 *pDvBuf;
+ dma_addr_t dvbuf_dma = -1;
+ dma_addr_t buf1_dma = -1;
+ dma_addr_t buf2_dma = -1;
+ dma_addr_t cfg1_dma_addr = -1;
+ dma_addr_t cfg0_dma_addr = -1;
+ ConfigPageHeader_t header1;
+ ConfigPageHeader_t header0;
+ DVPARAMETERS dv;
+ INTERNAL_CMD iocmd;
+ CONFIGPARMS cfg;
+ int dv_alloc = 0;
+ int rc, sz = 0;
+ int bufsize = 0;
+ int dataBufSize = 0;
+ int echoBufSize = 0;
+ int notDone;
+ int patt;
+ int repeat;
+ int retcode = 0;
+ int nfactor = MPT_ULTRA320;
+ char firstPass = 1;
+ char doFallback = 0;
+ char readPage0;
+ char bus, lun;
+ char inq0 = 0;
+
+ if (ioc->spi_data.sdp1length == 0)
+ return 0;
+
+ if (ioc->spi_data.sdp0length == 0)
+ return 0;
+
+ /* If multiple buses are used, require that the initiator
+ * id be the same on all buses.
+ */
+ if (id == ioc->pfacts[0].PortSCSIID)
+ return 0;
+
+ lun = 0;
+ bus = (u8) bus_number;
+ ddvtprintk((MYIOC_s_NOTE_FMT
+ "DV started: bus=%d, id=%d dv @ %p\n",
+ ioc->name, bus, id, &dv));
+
+ /* Prep DV structure
+ */
+ memset (&dv, 0, sizeof(DVPARAMETERS));
+ dv.id = id;
+
+ /* Populate tmax with the current maximum
+ * transfer parameters for this target.
+ * Exit if narrow and async.
+ */
+ dv.cmd = MPT_GET_NVRAM_VALS;
+ mptscsih_dv_parms(hd, &dv, NULL);
+
+ /* Prep SCSI IO structure
+ */
+ iocmd.id = id;
+ iocmd.bus = bus;
+ iocmd.lun = lun;
+ iocmd.flags = 0;
+ iocmd.physDiskNum = -1;
+ iocmd.rsvd = iocmd.rsvd2 = 0;
+
+ pTarget = hd->Targets[id];
+
+ /* Use tagged commands if possible.
+ */
+ if (pTarget) {
+ if (pTarget->tflags & MPT_TARGET_FLAGS_Q_YES)
+ iocmd.flags |= MPT_ICFLAG_TAGGED_CMD;
+ else {
+ if (hd->ioc->facts.FWVersion.Word < 0x01000600)
+ return 0;
+
+ if ((hd->ioc->facts.FWVersion.Word >= 0x01010000) &&
+ (hd->ioc->facts.FWVersion.Word < 0x01010B00))
+ return 0;
+ }
+ }
+
+ /* Prep cfg structure
+ */
+ cfg.pageAddr = (bus<<8) | id;
+ cfg.hdr = NULL;
+
+ /* Prep SDP0 header
+ */
+ header0.PageVersion = ioc->spi_data.sdp0version;
+ header0.PageLength = ioc->spi_data.sdp0length;
+ header0.PageNumber = 0;
+ header0.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
+
+ /* Prep SDP1 header
+ */
+ header1.PageVersion = ioc->spi_data.sdp1version;
+ header1.PageLength = ioc->spi_data.sdp1length;
+ header1.PageNumber = 1;
+ header1.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
+
+ if (header0.PageLength & 1)
+ dv_alloc = (header0.PageLength * 4) + 4;
+
+ dv_alloc += (2048 + (header1.PageLength * 4));
+
+ pDvBuf = pci_alloc_consistent(ioc->pcidev, dv_alloc, &dvbuf_dma);
+ if (pDvBuf == NULL)
+ return 0;
+
+ sz = 0;
+ pbuf1 = (u8 *)pDvBuf;
+ buf1_dma = dvbuf_dma;
+ sz +=1024;
+
+ pbuf2 = (u8 *) (pDvBuf + sz);
+ buf2_dma = dvbuf_dma + sz;
+ sz +=1024;
+
+ pcfg0Data = (SCSIDevicePage0_t *) (pDvBuf + sz);
+ cfg0_dma_addr = dvbuf_dma + sz;
+ sz += header0.PageLength * 4;
+
+ /* 8-byte alignment
+ */
+ if (header0.PageLength & 1)
+ sz += 4;
+
+ pcfg1Data = (SCSIDevicePage1_t *) (pDvBuf + sz);
+ cfg1_dma_addr = dvbuf_dma + sz;
+
+ /* Skip this ID? Set cfg.hdr to force config page write
+ */
+ {
+ ScsiCfgData *pspi_data = &hd->ioc->spi_data;
+ if (pspi_data->nvram && (pspi_data->nvram[id] != MPT_HOST_NVRAM_INVALID)) {
+ /* Set the factor from nvram */
+ nfactor = (pspi_data->nvram[id] & MPT_NVRAM_SYNC_MASK) >> 8;
+ if (nfactor < pspi_data->minSyncFactor )
+ nfactor = pspi_data->minSyncFactor;
+
+ if (!(pspi_data->nvram[id] & MPT_NVRAM_ID_SCAN_ENABLE) ||
+ (pspi_data->PortFlags == MPI_SCSIPORTPAGE2_PORT_FLAGS_OFF_DV) ) {
+
+ ddvprintk((MYIOC_s_NOTE_FMT "DV Skipped: bus, id, lun (%d, %d, %d)\n",
+ ioc->name, bus, id, lun));
+
+ dv.cmd = MPT_SET_MAX;
+ mptscsih_dv_parms(hd, &dv, (void *)pcfg1Data);
+ cfg.hdr = &header1;
+
+ /* Save the final negotiated settings to
+ * SCSI device page 1.
+ */
+ cfg.physAddr = cfg1_dma_addr;
+ cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+ cfg.dir = 1;
+ mpt_config(hd->ioc, &cfg);
+ goto target_done;
+ }
+ }
+ }
+
+ /* Finish iocmd inititialization - hidden or visible disk? */
+ if (ioc->spi_data.pIocPg3) {
+ /* Search IOC page 3 for matching id
+ */
+ Ioc3PhysDisk_t *pPDisk = ioc->spi_data.pIocPg3->PhysDisk;
+ int numPDisk = ioc->spi_data.pIocPg3->NumPhysDisks;
+
+ while (numPDisk) {
+ if (pPDisk->PhysDiskID == id) {
+ /* match */
+ iocmd.flags |= MPT_ICFLAG_PHYS_DISK;
+ iocmd.physDiskNum = pPDisk->PhysDiskNum;
+
+ /* Quiesce the IM
+ */
+ if (mptscsih_do_raid(hd, MPI_RAID_ACTION_QUIESCE_PHYS_IO, &iocmd) < 0) {
+ ddvprintk((MYIOC_s_ERR_FMT "RAID Queisce FAILED!\n", ioc->name));
+ goto target_done;
+ }
+ break;
+ }
+ pPDisk++;
+ numPDisk--;
+ }
+ }
+
+ /* RAID Volume ID's may double for a physical device. If RAID but
+ * not a physical ID as well, skip DV.
+ */
+ if ((hd->ioc->spi_data.isRaid & (1 << id)) && !(iocmd.flags & MPT_ICFLAG_PHYS_DISK))
+ goto target_done;
+
+
+ /* Basic Test.
+ * Async & Narrow - Inquiry
+ * Async & Narrow - Inquiry
+ * Maximum transfer rate - Inquiry
+ * Compare buffers:
+ * If compare, test complete.
+ * If miscompare and first pass, repeat
+ * If miscompare and not first pass, fall back and repeat
+ */
+ hd->pLocal = NULL;
+ readPage0 = 0;
+ sz = SCSI_MAX_INQUIRY_BYTES;
+ rc = MPT_SCANDV_GOOD;
+ while (1) {
+ ddvprintk((MYIOC_s_NOTE_FMT "DV: Start Basic test on id=%d\n", ioc->name, id));
+ retcode = 0;
+ dv.cmd = MPT_SET_MIN;
+ mptscsih_dv_parms(hd, &dv, (void *)pcfg1Data);
+
+ cfg.hdr = &header1;
+ cfg.physAddr = cfg1_dma_addr;
+ cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+ cfg.dir = 1;
+ if (mpt_config(hd->ioc, &cfg) != 0)
+ goto target_done;
+
+ /* Wide - narrow - wide workaround case
+ */
+ if ((rc == MPT_SCANDV_ISSUE_SENSE) && dv.max.width) {
+ /* Send an untagged command to reset disk Qs corrupted
+ * when a parity error occurs on a Request Sense.
+ */
+ if ((hd->ioc->facts.FWVersion.Word >= 0x01000600) ||
+ ((hd->ioc->facts.FWVersion.Word >= 0x01010000) &&
+ (hd->ioc->facts.FWVersion.Word < 0x01010B00)) ) {
+
+ iocmd.cmd = REQUEST_SENSE;
+ iocmd.data_dma = buf1_dma;
+ iocmd.data = pbuf1;
+ iocmd.size = 0x12;
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+ else {
+ if (hd->pLocal == NULL)
+ goto target_done;
+ rc = hd->pLocal->completion;
+ if ((rc == MPT_SCANDV_GOOD) || (rc == MPT_SCANDV_SENSE)) {
+ dv.max.width = 0;
+ doFallback = 0;
+ } else
+ goto target_done;
+ }
+ } else
+ goto target_done;
+ }
+
+ iocmd.cmd = INQUIRY;
+ iocmd.data_dma = buf1_dma;
+ iocmd.data = pbuf1;
+ iocmd.size = sz;
+ memset(pbuf1, 0x00, sz);
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+ else {
+ if (hd->pLocal == NULL)
+ goto target_done;
+ rc = hd->pLocal->completion;
+ if (rc == MPT_SCANDV_GOOD) {
+ if (hd->pLocal->scsiStatus == SAM_STAT_BUSY) {
+ if ((iocmd.flags & MPT_ICFLAG_TAGGED_CMD) == 0)
+ retcode = 1;
+ else
+ retcode = 0;
+
+ goto target_done;
+ }
+ } else if (rc == MPT_SCANDV_SENSE) {
+ ;
+ } else {
+ /* If first command doesn't complete
+ * with a good status or with a check condition,
+ * exit.
+ */
+ goto target_done;
+ }
+ }
+
+ /* Reset the size for disks
+ */
+ inq0 = (*pbuf1) & 0x1F;
+ if ((inq0 == 0) && pTarget && !pTarget->raidVolume) {
+ sz = 0x40;
+ iocmd.size = sz;
+ }
+
+ /* Another GEM workaround. Check peripheral device type,
+ * if PROCESSOR, quit DV.
+ */
+ if (inq0 == TYPE_PROCESSOR) {
+ mptscsih_initTarget(hd,
+ bus,
+ id,
+ lun,
+ pbuf1,
+ sz);
+ goto target_done;
+ }
+
+ if (inq0 > 0x08)
+ goto target_done;
+
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+
+ if (sz == 0x40) {
+ if ((pTarget->maxWidth == 1) && (pTarget->maxOffset) && (nfactor < 0x0A)
+ && (pTarget->minSyncFactor > 0x09)) {
+ if ((pbuf1[56] & 0x04) == 0)
+ ;
+ else if ((pbuf1[56] & 0x01) == 1) {
+ pTarget->minSyncFactor =
+ nfactor > MPT_ULTRA320 ? nfactor : MPT_ULTRA320;
+ } else {
+ pTarget->minSyncFactor =
+ nfactor > MPT_ULTRA160 ? nfactor : MPT_ULTRA160;
+ }
+
+ dv.max.factor = pTarget->minSyncFactor;
+
+ if ((pbuf1[56] & 0x02) == 0) {
+ pTarget->negoFlags |= MPT_TARGET_NO_NEGO_QAS;
+ hd->ioc->spi_data.noQas = MPT_TARGET_NO_NEGO_QAS;
+ ddvprintk((MYIOC_s_NOTE_FMT
+ "DV: Start Basic noQas on id=%d due to pbuf1[56]=%x\n",
+ ioc->name, id, pbuf1[56]));
+ }
+ }
+ }
+
+ if (doFallback)
+ dv.cmd = MPT_FALLBACK;
+ else
+ dv.cmd = MPT_SET_MAX;
+
+ mptscsih_dv_parms(hd, &dv, (void *)pcfg1Data);
+ if (mpt_config(hd->ioc, &cfg) != 0)
+ goto target_done;
+
+ if ((!dv.now.width) && (!dv.now.offset))
+ goto target_done;
+
+ iocmd.cmd = INQUIRY;
+ iocmd.data_dma = buf2_dma;
+ iocmd.data = pbuf2;
+ iocmd.size = sz;
+ memset(pbuf2, 0x00, sz);
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+ else if (hd->pLocal == NULL)
+ goto target_done;
+ else {
+ /* Save the return code.
+ * If this is the first pass,
+ * read SCSI Device Page 0
+ * and update the target max parameters.
+ */
+ rc = hd->pLocal->completion;
+ doFallback = 0;
+ if (rc == MPT_SCANDV_GOOD) {
+ if (!readPage0) {
+ u32 sdp0_info;
+ u32 sdp0_nego;
+
+ cfg.hdr = &header0;
+ cfg.physAddr = cfg0_dma_addr;
+ cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
+ cfg.dir = 0;
+
+ if (mpt_config(hd->ioc, &cfg) != 0)
+ goto target_done;
+
+ sdp0_info = le32_to_cpu(pcfg0Data->Information) & 0x0E;
+ sdp0_nego = (le32_to_cpu(pcfg0Data->NegotiatedParameters) & 0xFF00 ) >> 8;
+
+ /* Quantum and Fujitsu workarounds.
+ * Quantum: PPR U320 -> PPR reply with Ultra2 and wide
+ * Fujitsu: PPR U320 -> Msg Reject and Ultra2 and wide
+ * Resetart with a request for U160.
+ */
+ if ((dv.now.factor == MPT_ULTRA320) && (sdp0_nego == MPT_ULTRA2)) {
+ doFallback = 1;
+ } else {
+ dv.cmd = MPT_UPDATE_MAX;
+ mptscsih_dv_parms(hd, &dv, (void *)pcfg0Data);
+ /* Update the SCSI device page 1 area
+ */
+ pcfg1Data->RequestedParameters = pcfg0Data->NegotiatedParameters;
+ readPage0 = 1;
+ }
+ }
+
+ /* Quantum workaround. Restart this test will the fallback
+ * flag set.
+ */
+ if (doFallback == 0) {
+ if (memcmp(pbuf1, pbuf2, sz) != 0) {
+ if (!firstPass)
+ doFallback = 1;
+ } else {
+ ddvprintk((MYIOC_s_NOTE_FMT
+ "DV:Inquiry compared id=%d, calling initTarget\n", ioc->name, id));
+ hd->ioc->spi_data.dvStatus[id] &= ~MPT_SCSICFG_DV_NOT_DONE;
+ mptscsih_initTarget(hd,
+ bus,
+ id,
+ lun,
+ pbuf1,
+ sz);
+ break; /* test complete */
+ }
+ }
+
+
+ } else if (rc == MPT_SCANDV_ISSUE_SENSE)
+ doFallback = 1; /* set fallback flag */
+ else if ((rc == MPT_SCANDV_DID_RESET) ||
+ (rc == MPT_SCANDV_SENSE) ||
+ (rc == MPT_SCANDV_FALLBACK))
+ doFallback = 1; /* set fallback flag */
+ else
+ goto target_done;
+
+ firstPass = 0;
+ }
+ }
+ ddvprintk((MYIOC_s_NOTE_FMT "DV: Basic test on id=%d completed OK.\n", ioc->name, id));
+
+ if (mpt_dv == 0)
+ goto target_done;
+
+ inq0 = (*pbuf1) & 0x1F;
+
+ /* Continue only for disks
+ */
+ if (inq0 != 0)
+ goto target_done;
+
+ if ( ioc->spi_data.PortFlags == MPI_SCSIPORTPAGE2_PORT_FLAGS_BASIC_DV_ONLY )
+ goto target_done;
+
+ /* Start the Enhanced Test.
+ * 0) issue TUR to clear out check conditions
+ * 1) read capacity of echo (regular) buffer
+ * 2) reserve device
+ * 3) do write-read-compare data pattern test
+ * 4) release
+ * 5) update nego parms to target struct
+ */
+ cfg.hdr = &header1;
+ cfg.physAddr = cfg1_dma_addr;
+ cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+ cfg.dir = 1;
+
+ iocmd.cmd = TEST_UNIT_READY;
+ iocmd.data_dma = -1;
+ iocmd.data = NULL;
+ iocmd.size = 0;
+ notDone = 1;
+ while (notDone) {
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+
+ if (hd->pLocal == NULL)
+ goto target_done;
+
+ rc = hd->pLocal->completion;
+ if (rc == MPT_SCANDV_GOOD)
+ notDone = 0;
+ else if (rc == MPT_SCANDV_SENSE) {
+ u8 skey = hd->pLocal->sense[2] & 0x0F;
+ u8 asc = hd->pLocal->sense[12];
+ u8 ascq = hd->pLocal->sense[13];
+ ddvprintk((MYIOC_s_INFO_FMT
+ "SenseKey:ASC:ASCQ = (%x:%02x:%02x)\n",
+ ioc->name, skey, asc, ascq));
+
+ if (skey == UNIT_ATTENTION)
+ notDone++; /* repeat */
+ else if ((skey == NOT_READY) &&
+ (asc == 0x04)&&(ascq == 0x01)) {
+ /* wait then repeat */
+ mdelay (2000);
+ notDone++;
+ } else if ((skey == NOT_READY) && (asc == 0x3A)) {
+ /* no medium, try read test anyway */
+ notDone = 0;
+ } else {
+ /* All other errors are fatal.
+ */
+ ddvprintk((MYIOC_s_INFO_FMT "DV: fatal error.",
+ ioc->name));
+ goto target_done;
+ }
+ } else
+ goto target_done;
+ }
+
+ iocmd.cmd = READ_BUFFER;
+ iocmd.data_dma = buf1_dma;
+ iocmd.data = pbuf1;
+ iocmd.size = 4;
+ iocmd.flags |= MPT_ICFLAG_BUF_CAP;
+
+ dataBufSize = 0;
+ echoBufSize = 0;
+ for (patt = 0; patt < 2; patt++) {
+ if (patt == 0)
+ iocmd.flags |= MPT_ICFLAG_ECHO;
+ else
+ iocmd.flags &= ~MPT_ICFLAG_ECHO;
+
+ notDone = 1;
+ while (notDone) {
+ bufsize = 0;
+
+ /* If not ready after 8 trials,
+ * give up on this device.
+ */
+ if (notDone > 8)
+ goto target_done;
+
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+ else if (hd->pLocal == NULL)
+ goto target_done;
+ else {
+ rc = hd->pLocal->completion;
+ ddvprintk(("ReadBuffer Comp Code %d", rc));
+ ddvprintk((" buff: %0x %0x %0x %0x\n",
+ pbuf1[0], pbuf1[1], pbuf1[2], pbuf1[3]));
+
+ if (rc == MPT_SCANDV_GOOD) {
+ notDone = 0;
+ if (iocmd.flags & MPT_ICFLAG_ECHO) {
+ bufsize = ((pbuf1[2] & 0x1F) <<8) | pbuf1[3];
+ } else {
+ bufsize = pbuf1[1]<<16 | pbuf1[2]<<8 | pbuf1[3];
+ }
+ } else if (rc == MPT_SCANDV_SENSE) {
+ u8 skey = hd->pLocal->sense[2] & 0x0F;
+ u8 asc = hd->pLocal->sense[12];
+ u8 ascq = hd->pLocal->sense[13];
+ ddvprintk((MYIOC_s_INFO_FMT
+ "SenseKey:ASC:ASCQ = (%x:%02x:%02x)\n",
+ ioc->name, skey, asc, ascq));
+ if (skey == ILLEGAL_REQUEST) {
+ notDone = 0;
+ } else if (skey == UNIT_ATTENTION) {
+ notDone++; /* repeat */
+ } else if ((skey == NOT_READY) &&
+ (asc == 0x04)&&(ascq == 0x01)) {
+ /* wait then repeat */
+ mdelay (2000);
+ notDone++;
+ } else {
+ /* All other errors are fatal.
+ */
+ ddvprintk((MYIOC_s_INFO_FMT "DV: fatal error.",
+ ioc->name));
+ goto target_done;
+ }
+ } else {
+ /* All other errors are fatal
+ */
+ goto target_done;
+ }
+ }
+ }
+
+ if (iocmd.flags & MPT_ICFLAG_ECHO)
+ echoBufSize = bufsize;
+ else
+ dataBufSize = bufsize;
+ }
+ sz = 0;
+ iocmd.flags &= ~MPT_ICFLAG_BUF_CAP;
+
+ /* Use echo buffers if possible,
+ * Exit if both buffers are 0.
+ */
+ if (echoBufSize > 0) {
+ iocmd.flags |= MPT_ICFLAG_ECHO;
+ if (dataBufSize > 0)
+ bufsize = min(echoBufSize, dataBufSize);
+ else
+ bufsize = echoBufSize;
+ } else if (dataBufSize == 0)
+ goto target_done;
+
+ ddvprintk((MYIOC_s_INFO_FMT "%s Buffer Capacity %d\n", ioc->name,
+ (iocmd.flags & MPT_ICFLAG_ECHO) ? "Echo" : " ", bufsize));
+
+ /* Data buffers for write-read-compare test max 1K.
+ */
+ sz = min(bufsize, 1024);
+
+ /* --- loop ----
+ * On first pass, always issue a reserve.
+ * On additional loops, only if a reset has occurred.
+ * iocmd.flags indicates if echo or regular buffer
+ */
+ for (patt = 0; patt < 4; patt++) {
+ ddvprintk(("Pattern %d\n", patt));
+ if ((iocmd.flags & MPT_ICFLAG_RESERVED) && (iocmd.flags & MPT_ICFLAG_DID_RESET)) {
+ iocmd.cmd = TEST_UNIT_READY;
+ iocmd.data_dma = -1;
+ iocmd.data = NULL;
+ iocmd.size = 0;
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+
+ iocmd.cmd = RELEASE;
+ iocmd.data_dma = -1;
+ iocmd.data = NULL;
+ iocmd.size = 0;
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+ else if (hd->pLocal == NULL)
+ goto target_done;
+ else {
+ rc = hd->pLocal->completion;
+ ddvprintk(("Release rc %d\n", rc));
+ if (rc == MPT_SCANDV_GOOD)
+ iocmd.flags &= ~MPT_ICFLAG_RESERVED;
+ else
+ goto target_done;
+ }
+ iocmd.flags &= ~MPT_ICFLAG_RESERVED;
+ }
+ iocmd.flags &= ~MPT_ICFLAG_DID_RESET;
+
+ repeat = 5;
+ while (repeat && (!(iocmd.flags & MPT_ICFLAG_RESERVED))) {
+ iocmd.cmd = RESERVE;
+ iocmd.data_dma = -1;
+ iocmd.data = NULL;
+ iocmd.size = 0;
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+ else if (hd->pLocal == NULL)
+ goto target_done;
+ else {
+ rc = hd->pLocal->completion;
+ if (rc == MPT_SCANDV_GOOD) {
+ iocmd.flags |= MPT_ICFLAG_RESERVED;
+ } else if (rc == MPT_SCANDV_SENSE) {
+ /* Wait if coming ready
+ */
+ u8 skey = hd->pLocal->sense[2] & 0x0F;
+ u8 asc = hd->pLocal->sense[12];
+ u8 ascq = hd->pLocal->sense[13];
+ ddvprintk((MYIOC_s_INFO_FMT
+ "DV: Reserve Failed: ", ioc->name));
+ ddvprintk(("SenseKey:ASC:ASCQ = (%x:%02x:%02x)\n",
+ skey, asc, ascq));
+
+ if ((skey == NOT_READY) && (asc == 0x04)&&
+ (ascq == 0x01)) {
+ /* wait then repeat */
+ mdelay (2000);
+ notDone++;
+ } else {
+ ddvprintk((MYIOC_s_INFO_FMT
+ "DV: Reserved Failed.", ioc->name));
+ goto target_done;
+ }
+ } else {
+ ddvprintk((MYIOC_s_INFO_FMT "DV: Reserved Failed.",
+ ioc->name));
+ goto target_done;
+ }
+ }
+ }
+
+ mptscsih_fillbuf(pbuf1, sz, patt, 1);
+ iocmd.cmd = WRITE_BUFFER;
+ iocmd.data_dma = buf1_dma;
+ iocmd.data = pbuf1;
+ iocmd.size = sz;
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+ else if (hd->pLocal == NULL)
+ goto target_done;
+ else {
+ rc = hd->pLocal->completion;
+ if (rc == MPT_SCANDV_GOOD)
+ ; /* Issue read buffer */
+ else if (rc == MPT_SCANDV_DID_RESET) {
+ /* If using echo buffers, reset to data buffers.
+ * Else do Fallback and restart
+ * this test (re-issue reserve
+ * because of bus reset).
+ */
+ if ((iocmd.flags & MPT_ICFLAG_ECHO) && (dataBufSize >= bufsize)) {
+ iocmd.flags &= ~MPT_ICFLAG_ECHO;
+ } else {
+ dv.cmd = MPT_FALLBACK;
+ mptscsih_dv_parms(hd, &dv, (void *)pcfg1Data);
+
+ if (mpt_config(hd->ioc, &cfg) != 0)
+ goto target_done;
+
+ if ((!dv.now.width) && (!dv.now.offset))
+ goto target_done;
+ }
+
+ iocmd.flags |= MPT_ICFLAG_DID_RESET;
+ patt = -1;
+ continue;
+ } else if (rc == MPT_SCANDV_SENSE) {
+ /* Restart data test if UA, else quit.
+ */
+ u8 skey = hd->pLocal->sense[2] & 0x0F;
+ ddvprintk((MYIOC_s_INFO_FMT
+ "SenseKey:ASC:ASCQ = (%x:%02x:%02x)\n", ioc->name, skey,
+ hd->pLocal->sense[12], hd->pLocal->sense[13]));
+ if (skey == UNIT_ATTENTION) {
+ patt = -1;
+ continue;
+ } else if (skey == ILLEGAL_REQUEST) {
+ if (iocmd.flags & MPT_ICFLAG_ECHO) {
+ if (dataBufSize >= bufsize) {
+ iocmd.flags &= ~MPT_ICFLAG_ECHO;
+ patt = -1;
+ continue;
+ }
+ }
+ goto target_done;
+ }
+ else
+ goto target_done;
+ } else {
+ /* fatal error */
+ goto target_done;
+ }
+ }
+
+ iocmd.cmd = READ_BUFFER;
+ iocmd.data_dma = buf2_dma;
+ iocmd.data = pbuf2;
+ iocmd.size = sz;
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ goto target_done;
+ else if (hd->pLocal == NULL)
+ goto target_done;
+ else {
+ rc = hd->pLocal->completion;
+ if (rc == MPT_SCANDV_GOOD) {
+ /* If buffers compare,
+ * go to next pattern,
+ * else, do a fallback and restart
+ * data transfer test.
+ */
+ if (memcmp (pbuf1, pbuf2, sz) == 0) {
+ ; /* goto next pattern */
+ } else {
+ /* Miscompare with Echo buffer, go to data buffer,
+ * if that buffer exists.
+ * Miscompare with Data buffer, check first 4 bytes,
+ * some devices return capacity. Exit in this case.
+ */
+ if (iocmd.flags & MPT_ICFLAG_ECHO) {
+ if (dataBufSize >= bufsize)
+ iocmd.flags &= ~MPT_ICFLAG_ECHO;
+ else
+ goto target_done;
+ } else {
+ if (dataBufSize == (pbuf2[1]<<16 | pbuf2[2]<<8 | pbuf2[3])) {
+ /* Argh. Device returning wrong data.
+ * Quit DV for this device.
+ */
+ goto target_done;
+ }
+
+ /* Had an actual miscompare. Slow down.*/
+ dv.cmd = MPT_FALLBACK;
+ mptscsih_dv_parms(hd, &dv, (void *)pcfg1Data);
+
+ if (mpt_config(hd->ioc, &cfg) != 0)
+ goto target_done;
+
+ if ((!dv.now.width) && (!dv.now.offset))
+ goto target_done;
+ }
+
+ patt = -1;
+ continue;
+ }
+ } else if (rc == MPT_SCANDV_DID_RESET) {
+ /* Do Fallback and restart
+ * this test (re-issue reserve
+ * because of bus reset).
+ */
+ dv.cmd = MPT_FALLBACK;
+ mptscsih_dv_parms(hd, &dv, (void *)pcfg1Data);
+
+ if (mpt_config(hd->ioc, &cfg) != 0)
+ goto target_done;
+
+ if ((!dv.now.width) && (!dv.now.offset))
+ goto target_done;
+
+ iocmd.flags |= MPT_ICFLAG_DID_RESET;
+ patt = -1;
+ continue;
+ } else if (rc == MPT_SCANDV_SENSE) {
+ /* Restart data test if UA, else quit.
+ */
+ u8 skey = hd->pLocal->sense[2] & 0x0F;
+ ddvprintk((MYIOC_s_INFO_FMT
+ "SenseKey:ASC:ASCQ = (%x:%02x:%02x)\n", ioc->name, skey,
+ hd->pLocal->sense[12], hd->pLocal->sense[13]));
+ if (skey == UNIT_ATTENTION) {
+ patt = -1;
+ continue;
+ }
+ else
+ goto target_done;
+ } else {
+ /* fatal error */
+ goto target_done;
+ }
+ }
+
+ } /* --- end of patt loop ---- */
+
+target_done:
+ if (iocmd.flags & MPT_ICFLAG_RESERVED) {
+ iocmd.cmd = RELEASE;
+ iocmd.data_dma = -1;
+ iocmd.data = NULL;
+ iocmd.size = 0;
+ if (mptscsih_do_cmd(hd, &iocmd) < 0)
+ printk(MYIOC_s_INFO_FMT "DV: Release failed. id %d",
+ ioc->name, id);
+ else if (hd->pLocal) {
+ if (hd->pLocal->completion == MPT_SCANDV_GOOD)
+ iocmd.flags &= ~MPT_ICFLAG_RESERVED;
+ } else {
+ printk(MYIOC_s_INFO_FMT "DV: Release failed. id %d",
+ ioc->name, id);
+ }
+ }
+
+
+ /* Set if cfg1_dma_addr contents is valid
+ */
+ if ((cfg.hdr != NULL) && (retcode == 0)){
+ /* If disk, not U320, disable QAS
+ */
+ if ((inq0 == 0) && (dv.now.factor > MPT_ULTRA320)) {
+ hd->ioc->spi_data.noQas = MPT_TARGET_NO_NEGO_QAS;
+ ddvprintk((MYIOC_s_NOTE_FMT
+ "noQas set due to id=%d has factor=%x\n", ioc->name, id, dv.now.factor));
+ }
+
+ dv.cmd = MPT_SAVE;
+ mptscsih_dv_parms(hd, &dv, (void *)pcfg1Data);
+
+ /* Double writes to SDP1 can cause problems,
+ * skip save of the final negotiated settings to
+ * SCSI device page 1.
+ *
+ cfg.hdr = &header1;
+ cfg.physAddr = cfg1_dma_addr;
+ cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+ cfg.dir = 1;
+ mpt_config(hd->ioc, &cfg);
+ */
+ }
+
+ /* If this is a RAID Passthrough, enable internal IOs
+ */
+ if (iocmd.flags & MPT_ICFLAG_PHYS_DISK) {
+ if (mptscsih_do_raid(hd, MPI_RAID_ACTION_ENABLE_PHYS_IO, &iocmd) < 0)
+ ddvprintk((MYIOC_s_ERR_FMT "RAID Enable FAILED!\n", ioc->name));
+ }
+
+ /* Done with the DV scan of the current target
+ */
+ if (pDvBuf)
+ pci_free_consistent(ioc->pcidev, dv_alloc, pDvBuf, dvbuf_dma);
+
+ ddvtprintk((MYIOC_s_INFO_FMT "DV Done id=%d\n",
+ ioc->name, id));
+
+ return retcode;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/* mptscsih_dv_parms - perform a variety of operations on the
+ * parameters used for negotiation.
+ * @hd: Pointer to a SCSI host.
+ * @dv: Pointer to a structure that contains the maximum and current
+ * negotiated parameters.
+ */
+static void
+mptscsih_dv_parms(MPT_SCSI_HOST *hd, DVPARAMETERS *dv,void *pPage)
+{
+ VirtDevice *pTarget;
+ SCSIDevicePage0_t *pPage0;
+ SCSIDevicePage1_t *pPage1;
+ int val = 0, data, configuration;
+ u8 width = 0;
+ u8 offset = 0;
+ u8 factor = 0;
+ u8 negoFlags = 0;
+ u8 cmd = dv->cmd;
+ u8 id = dv->id;
+
+ switch (cmd) {
+ case MPT_GET_NVRAM_VALS:
+ ddvprintk((MYIOC_s_NOTE_FMT "Getting NVRAM: ",
+ hd->ioc->name));
+ /* Get the NVRAM values and save in tmax
+ * If not an LVD bus, the adapter minSyncFactor has been
+ * already throttled back.
+ */
+ if ((hd->Targets)&&((pTarget = hd->Targets[(int)id]) != NULL) && !pTarget->raidVolume) {
+ width = pTarget->maxWidth;
+ offset = pTarget->maxOffset;
+ factor = pTarget->minSyncFactor;
+ negoFlags = pTarget->negoFlags;
+ } else {
+ if (hd->ioc->spi_data.nvram && (hd->ioc->spi_data.nvram[id] != MPT_HOST_NVRAM_INVALID)) {
+ data = hd->ioc->spi_data.nvram[id];
+ width = data & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
+ if ((offset = hd->ioc->spi_data.maxSyncOffset) == 0)
+ factor = MPT_ASYNC;
+ else {
+ factor = (data & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT;
+ if ((factor == 0) || (factor == MPT_ASYNC)){
+ factor = MPT_ASYNC;
+ offset = 0;
+ }
+ }
+ } else {
+ width = MPT_NARROW;
+ offset = 0;
+ factor = MPT_ASYNC;
+ }
+
+ /* Set the negotiation flags */
+ negoFlags = hd->ioc->spi_data.noQas;
+ if (!width)
+ negoFlags |= MPT_TARGET_NO_NEGO_WIDE;
+
+ if (!offset)
+ negoFlags |= MPT_TARGET_NO_NEGO_SYNC;
+ }
+
+ /* limit by adapter capabilities */
+ width = min(width, hd->ioc->spi_data.maxBusWidth);
+ offset = min(offset, hd->ioc->spi_data.maxSyncOffset);
+ factor = max(factor, hd->ioc->spi_data.minSyncFactor);
+
+ /* Check Consistency */
+ if (offset && (factor < MPT_ULTRA2) && !width)
+ factor = MPT_ULTRA2;
+
+ dv->max.width = width;
+ dv->max.offset = offset;
+ dv->max.factor = factor;
+ dv->max.flags = negoFlags;
+ ddvprintk((" id=%d width=%d factor=%x offset=%x flags=%x\n",
+ id, width, factor, offset, negoFlags));
+ break;
+
+ case MPT_UPDATE_MAX:
+ ddvprintk((MYIOC_s_NOTE_FMT
+ "Updating with SDP0 Data: ", hd->ioc->name));
+ /* Update tmax values with those from Device Page 0.*/
+ pPage0 = (SCSIDevicePage0_t *) pPage;
+ if (pPage0) {
+ val = cpu_to_le32(pPage0->NegotiatedParameters);
+ dv->max.width = val & MPI_SCSIDEVPAGE0_NP_WIDE ? 1 : 0;
+ dv->max.offset = (val&MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> 16;
+ dv->max.factor = (val&MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> 8;
+ }
+
+ dv->now.width = dv->max.width;
+ dv->now.offset = dv->max.offset;
+ dv->now.factor = dv->max.factor;
+ ddvprintk(("id=%d width=%d factor=%x offset=%x flags=%x\n",
+ id, dv->now.width, dv->now.factor, dv->now.offset, dv->now.flags));
+ break;
+
+ case MPT_SET_MAX:
+ ddvprintk((MYIOC_s_NOTE_FMT "Setting Max: ",
+ hd->ioc->name));
+ /* Set current to the max values. Update the config page.*/
+ dv->now.width = dv->max.width;
+ dv->now.offset = dv->max.offset;
+ dv->now.factor = dv->max.factor;
+ dv->now.flags = dv->max.flags;
+
+ pPage1 = (SCSIDevicePage1_t *)pPage;
+ if (pPage1) {
+ mptscsih_setDevicePage1Flags (dv->now.width, dv->now.factor,
+ dv->now.offset, &val, &configuration, dv->now.flags);
+ dnegoprintk(("Setting Max: id=%d width=%d factor=%x offset=%x negoFlags=%x request=%x config=%x\n",
+ id, dv->now.width, dv->now.factor, dv->now.offset, dv->now.flags, val, configuration));
+ pPage1->RequestedParameters = le32_to_cpu(val);
+ pPage1->Reserved = 0;
+ pPage1->Configuration = le32_to_cpu(configuration);
+ }
+
+ ddvprintk(("id=%d width=%d factor=%x offset=%x flags=%x request=%x configuration=%x\n",
+ id, dv->now.width, dv->now.factor, dv->now.offset, dv->now.flags, val, configuration));
+ break;
+
+ case MPT_SET_MIN:
+ ddvprintk((MYIOC_s_NOTE_FMT "Setting Min: ",
+ hd->ioc->name));
+ /* Set page to asynchronous and narrow
+ * Do not update now, breaks fallback routine. */
+ width = MPT_NARROW;
+ offset = 0;
+ factor = MPT_ASYNC;
+ negoFlags = dv->max.flags;
+
+ pPage1 = (SCSIDevicePage1_t *)pPage;
+ if (pPage1) {
+ mptscsih_setDevicePage1Flags (width, factor,
+ offset, &val, &configuration, negoFlags);
+ dnegoprintk(("Setting Min: id=%d width=%d factor=%x offset=%x negoFlags=%x request=%x config=%x\n",
+ id, width, factor, offset, negoFlags, val, configuration));
+ pPage1->RequestedParameters = le32_to_cpu(val);
+ pPage1->Reserved = 0;
+ pPage1->Configuration = le32_to_cpu(configuration);
+ }
+ ddvprintk(("id=%d width=%d factor=%x offset=%x request=%x config=%x negoFlags=%x\n",
+ id, width, factor, offset, val, configuration, negoFlags));
+ break;
+
+ case MPT_FALLBACK:
+ ddvprintk((MYIOC_s_NOTE_FMT
+ "Fallback: Start: offset %d, factor %x, width %d \n",
+ hd->ioc->name, dv->now.offset,
+ dv->now.factor, dv->now.width));
+ width = dv->now.width;
+ offset = dv->now.offset;
+ factor = dv->now.factor;
+ if ((offset) && (dv->max.width)) {
+ if (factor < MPT_ULTRA160)
+ factor = MPT_ULTRA160;
+ else if (factor < MPT_ULTRA2) {
+ factor = MPT_ULTRA2;
+ width = MPT_WIDE;
+ } else if ((factor == MPT_ULTRA2) && width) {
+ factor = MPT_ULTRA2;
+ width = MPT_NARROW;
+ } else if (factor < MPT_ULTRA) {
+ factor = MPT_ULTRA;
+ width = MPT_WIDE;
+ } else if ((factor == MPT_ULTRA) && width) {
+ width = MPT_NARROW;
+ } else if (factor < MPT_FAST) {
+ factor = MPT_FAST;
+ width = MPT_WIDE;
+ } else if ((factor == MPT_FAST) && width) {
+ factor = MPT_FAST;
+ width = MPT_NARROW;
+ } else if (factor < MPT_SCSI) {
+ factor = MPT_SCSI;
+ width = MPT_WIDE;
+ } else if ((factor == MPT_SCSI) && width) {
+ factor = MPT_SCSI;
+ width = MPT_NARROW;
+ } else {
+ factor = MPT_ASYNC;
+ offset = 0;
+ }
+
+ } else if (offset) {
+ width = MPT_NARROW;
+ if (factor < MPT_ULTRA)
+ factor = MPT_ULTRA;
+ else if (factor < MPT_FAST)
+ factor = MPT_FAST;
+ else if (factor < MPT_SCSI)
+ factor = MPT_SCSI;
+ else {
+ factor = MPT_ASYNC;
+ offset = 0;
+ }
+
+ } else {
+ width = MPT_NARROW;
+ factor = MPT_ASYNC;
+ }
+ dv->max.flags |= MPT_TARGET_NO_NEGO_QAS;
+ dv->max.flags &= ~MPT_TAPE_NEGO_IDP;
+
+ dv->now.width = width;
+ dv->now.offset = offset;
+ dv->now.factor = factor;
+ dv->now.flags = dv->max.flags;
+
+ pPage1 = (SCSIDevicePage1_t *)pPage;
+ if (pPage1) {
+ mptscsih_setDevicePage1Flags (width, factor, offset, &val,
+ &configuration, dv->now.flags);
+ dnegoprintk(("Finish: id=%d width=%d offset=%d factor=%x flags=%x request=%x config=%x\n",
+ id, width, offset, factor, dv->now.flags, val, configuration));
+
+ pPage1->RequestedParameters = le32_to_cpu(val);
+ pPage1->Reserved = 0;
+ pPage1->Configuration = le32_to_cpu(configuration);
+ }
+
+ ddvprintk(("Finish: id=%d offset=%d factor=%x width=%d request=%x config=%x\n",
+ id, dv->now.offset, dv->now.factor, dv->now.width, val, configuration));
+ break;
+
+ case MPT_SAVE:
+ ddvprintk((MYIOC_s_NOTE_FMT
+ "Saving to Target structure: ", hd->ioc->name));
+ ddvprintk(("id=%d width=%x factor=%x offset=%d flags=%x\n",
+ id, dv->now.width, dv->now.factor, dv->now.offset, dv->now.flags));
+
+ /* Save these values to target structures
+ * or overwrite nvram (phys disks only).
+ */
+
+ if ((hd->Targets)&&((pTarget = hd->Targets[(int)id]) != NULL) && !pTarget->raidVolume ) {
+ pTarget->maxWidth = dv->now.width;
+ pTarget->maxOffset = dv->now.offset;
+ pTarget->minSyncFactor = dv->now.factor;
+ pTarget->negoFlags = dv->now.flags;
+ } else {
+ /* Preserv all flags, use
+ * read-modify-write algorithm
+ */
+ if (hd->ioc->spi_data.nvram) {
+ data = hd->ioc->spi_data.nvram[id];
+
+ if (dv->now.width)
+ data &= ~MPT_NVRAM_WIDE_DISABLE;
+ else
+ data |= MPT_NVRAM_WIDE_DISABLE;
+
+ if (!dv->now.offset)
+ factor = MPT_ASYNC;
+
+ data &= ~MPT_NVRAM_SYNC_MASK;
+ data |= (dv->now.factor << MPT_NVRAM_SYNC_SHIFT) & MPT_NVRAM_SYNC_MASK;
+
+ hd->ioc->spi_data.nvram[id] = data;
+ }
+ }
+ break;
+ }
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/* mptscsih_fillbuf - fill a buffer with a special data pattern
+ * cleanup. For bus scan only.
+ *
+ * @buffer: Pointer to data buffer to be filled.
+ * @size: Number of bytes to fill
+ * @index: Pattern index
+ * @width: bus width, 0 (8 bits) or 1 (16 bits)
+ */
+static void
+mptscsih_fillbuf(char *buffer, int size, int index, int width)
+{
+ char *ptr = buffer;
+ int ii;
+ char byte;
+ short val;
+
+ switch (index) {
+ case 0:
+
+ if (width) {
+ /* Pattern: 0000 FFFF 0000 FFFF
+ */
+ for (ii=0; ii < size; ii++, ptr++) {
+ if (ii & 0x02)
+ *ptr = 0xFF;
+ else
+ *ptr = 0x00;
+ }
+ } else {
+ /* Pattern: 00 FF 00 FF
+ */
+ for (ii=0; ii < size; ii++, ptr++) {
+ if (ii & 0x01)
+ *ptr = 0xFF;
+ else
+ *ptr = 0x00;
+ }
+ }
+ break;
+
+ case 1:
+ if (width) {
+ /* Pattern: 5555 AAAA 5555 AAAA 5555
+ */
+ for (ii=0; ii < size; ii++, ptr++) {
+ if (ii & 0x02)
+ *ptr = 0xAA;
+ else
+ *ptr = 0x55;
+ }
+ } else {
+ /* Pattern: 55 AA 55 AA 55
+ */
+ for (ii=0; ii < size; ii++, ptr++) {
+ if (ii & 0x01)
+ *ptr = 0xAA;
+ else
+ *ptr = 0x55;
+ }
+ }
+ break;
+
+ case 2:
+ /* Pattern: 00 01 02 03 04 05
+ * ... FE FF 00 01..
+ */
+ for (ii=0; ii < size; ii++, ptr++)
+ *ptr = (char) ii;
+ break;
+
+ case 3:
+ if (width) {
+ /* Wide Pattern: FFFE 0001 FFFD 0002
+ * ... 4000 DFFF 8000 EFFF
+ */
+ byte = 0;
+ for (ii=0; ii < size/2; ii++) {
+ /* Create the base pattern
+ */
+ val = (1 << byte);
+ /* every 64 (0x40) bytes flip the pattern
+ * since we fill 2 bytes / iteration,
+ * test for ii = 0x20
+ */
+ if (ii & 0x20)
+ val = ~(val);
+
+ if (ii & 0x01) {
+ *ptr = (char)( (val & 0xFF00) >> 8);
+ ptr++;
+ *ptr = (char)(val & 0xFF);
+ byte++;
+ byte &= 0x0F;
+ } else {
+ val = ~val;
+ *ptr = (char)( (val & 0xFF00) >> 8);
+ ptr++;
+ *ptr = (char)(val & 0xFF);
+ }
+
+ ptr++;
+ }
+ } else {
+ /* Narrow Pattern: FE 01 FD 02 FB 04
+ * .. 7F 80 01 FE 02 FD ... 80 7F
+ */
+ byte = 0;
+ for (ii=0; ii < size; ii++, ptr++) {
+ /* Base pattern - first 32 bytes
+ */
+ if (ii & 0x01) {
+ *ptr = (1 << byte);
+ byte++;
+ byte &= 0x07;
+ } else {
+ *ptr = (char) (~(1 << byte));
+ }
+
+ /* Flip the pattern every 32 bytes
+ */
+ if (ii & 0x20)
+ *ptr = ~(*ptr);
+ }
+ }
+ break;
+ }
+}
+#endif /* ~MPTSCSIH_ENABLE_DOMAIN_VALIDATION */
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+
+module_init(mptscsih_init);
+module_exit(mptscsih_exit);