diff options
| -rw-r--r-- | Documentation/scsi/hptiop.txt | 92 | ||||
| -rw-r--r-- | MAINTAINERS | 6 | ||||
| -rw-r--r-- | drivers/scsi/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/scsi/Makefile | 1 | ||||
| -rw-r--r-- | drivers/scsi/hptiop.c | 1501 | ||||
| -rw-r--r-- | drivers/scsi/hptiop.h | 465 |
6 files changed, 2075 insertions, 0 deletions
diff --git a/Documentation/scsi/hptiop.txt b/Documentation/scsi/hptiop.txt new file mode 100644 index 000000000000..d28a31247d4c --- /dev/null +++ b/Documentation/scsi/hptiop.txt @@ -0,0 +1,92 @@ +HIGHPOINT ROCKETRAID 3xxx RAID DRIVER (hptiop) + +Controller Register Map +------------------------- + +The controller IOP is accessed via PCI BAR0. + + BAR0 offset Register + 0x10 Inbound Message Register 0 + 0x14 Inbound Message Register 1 + 0x18 Outbound Message Register 0 + 0x1C Outbound Message Register 1 + 0x20 Inbound Doorbell Register + 0x24 Inbound Interrupt Status Register + 0x28 Inbound Interrupt Mask Register + 0x30 Outbound Interrupt Status Register + 0x34 Outbound Interrupt Mask Register + 0x40 Inbound Queue Port + 0x44 Outbound Queue Port + + +I/O Request Workflow +---------------------- + +All queued requests are handled via inbound/outbound queue port. +A request packet can be allocated in either IOP or host memory. + +To send a request to the controller: + + - Get a free request packet by reading the inbound queue port or + allocate a free request in host DMA coherent memory. + + The value returned from the inbound queue port is an offset + relative to the IOP BAR0. + + Requests allocated in host memory must be aligned on 32-bytes boundary. + + - Fill the packet. + + - Post the packet to IOP by writing it to inbound queue. For requests + allocated in IOP memory, write the offset to inbound queue port. For + requests allocated in host memory, write (0x80000000|(bus_addr>>5)) + to the inbound queue port. + + - The IOP process the request. When the request is completed, it + will be put into outbound queue. An outbound interrupt will be + generated. + + For requests allocated in IOP memory, the request offset is posted to + outbound queue. + + For requests allocated in host memory, (0x80000000|(bus_addr>>5)) + is posted to the outbound queue. If IOP_REQUEST_FLAG_OUTPUT_CONTEXT + flag is set in the request, the low 32-bit context value will be + posted instead. + + - The host read the outbound queue and complete the request. + + For requests allocated in IOP memory, the host driver free the request + by writing it to the outbound queue. + +Non-queued requests (reset/flush etc) can be sent via inbound message +register 0. An outbound message with the same value indicates the completion +of an inbound message. + + +User-level Interface +--------------------- + +The driver exposes following sysfs attributes: + + NAME R/W Description + driver-version R driver version string + firmware-version R firmware version string + +The driver registers char device "hptiop" to communicate with HighPoint RAID +management software. Its ioctl routine acts as a general binary interface +between the IOP firmware and HighPoint RAID management software. New management +functions can be implemented in application/firmware without modification +in driver code. + + +----------------------------------------------------------------------------- +Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved. + + This file 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. + + linux@highpoint-tech.com + http://www.highpoint-tech.com diff --git a/MAINTAINERS b/MAINTAINERS index 6d3c401ccdb6..db647bf8830b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1117,6 +1117,12 @@ L: linux-hams@vger.kernel.org W: http://www.nt.tuwien.ac.at/~kkudielk/Linux/ S: Maintained +HIGHPOINT ROCKETRAID 3xxx RAID DRIVER +P: HighPoint Linux Team +M: linux@highpoint-tech.com +W: http://www.highpoint-tech.com +S: Supported + HIPPI P: Jes Sorensen M: jes@trained-monkey.org diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 3e7302692dbe..13ad88a064b7 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -530,6 +530,16 @@ config SCSI_PDC_ADMA If unsure, say N. +config SCSI_HPTIOP + tristate "HighPoint RocketRAID 3xxx Controller support" + depends on SCSI && PCI + help + This option enables support for HighPoint RocketRAID 3xxx + controllers. + + To compile this driver as a module, choose M here; the module + will be called hptiop. If unsure, say N. + config SCSI_SATA_QSTOR tristate "Pacific Digital SATA QStor support" depends on SCSI_SATA && PCI diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index 3ce80ab4824a..9ae4361e352c 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -136,6 +136,7 @@ obj-$(CONFIG_SCSI_SATA_NV) += libata.o sata_nv.o obj-$(CONFIG_SCSI_SATA_ULI) += libata.o sata_uli.o obj-$(CONFIG_SCSI_SATA_MV) += libata.o sata_mv.o obj-$(CONFIG_SCSI_PDC_ADMA) += libata.o pdc_adma.o +obj-$(CONFIG_SCSI_HPTIOP) += hptiop.o obj-$(CONFIG_ARM) += arm/ diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c new file mode 100644 index 000000000000..8302f3ba31ce --- /dev/null +++ b/drivers/scsi/hptiop.c @@ -0,0 +1,1501 @@ +/* + * HighPoint RR3xxx controller driver for Linux + * Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved. + * + * 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. + * + * Please report bugs/comments/suggestions to linux@highpoint-tech.com + * + * For more information, visit http://www.highpoint-tech.com + */ +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/timer.h> +#include <linux/spinlock.h> +#include <linux/hdreg.h> +#include <asm/uaccess.h> +#include <asm/io.h> +#include <asm/div64.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi.h> +#include <scsi/scsi_tcq.h> +#include <scsi/scsi_host.h> + +#include "hptiop.h" + +MODULE_AUTHOR("HighPoint Technologies, Inc."); +MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx SATA Controller Driver"); + +static char driver_name[] = "hptiop"; +static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver"; +static const char driver_ver[] = "v1.0 (060426)"; + +static DEFINE_SPINLOCK(hptiop_hba_list_lock); +static LIST_HEAD(hptiop_hba_list); +static int hptiop_cdev_major = -1; + +static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag); +static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag); +static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg); + +static inline void hptiop_pci_posting_flush(struct hpt_iopmu __iomem *iop) +{ + readl(&iop->outbound_intstatus); +} + +static int iop_wait_ready(struct hpt_iopmu __iomem *iop, u32 millisec) +{ + u32 req = 0; + int i; + + for (i = 0; i < millisec; i++) { + req = readl(&iop->inbound_queue); + if (req != IOPMU_QUEUE_EMPTY) + break; + msleep(1); + } + + if (req != IOPMU_QUEUE_EMPTY) { + writel(req, &iop->outbound_queue); + hptiop_pci_posting_flush(iop); + return 0; + } + + return -1; +} + +static void hptiop_request_callback(struct hptiop_hba *hba, u32 tag) +{ + if ((tag & IOPMU_QUEUE_MASK_HOST_BITS) == IOPMU_QUEUE_ADDR_HOST_BIT) + return hptiop_host_request_callback(hba, + tag & ~IOPMU_QUEUE_ADDR_HOST_BIT); + else + return hptiop_iop_request_callback(hba, tag); +} + +static inline void hptiop_drain_outbound_queue(struct hptiop_hba *hba) +{ + u32 req; + + while ((req = readl(&hba->iop->outbound_queue)) != IOPMU_QUEUE_EMPTY) { + + if (req & IOPMU_QUEUE_MASK_HOST_BITS) + hptiop_request_callback(hba, req); + else { + struct hpt_iop_request_header __iomem * p; + + p = (struct hpt_iop_request_header __iomem *) + ((char __iomem *)hba->iop + req); + + if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) { + if (readl(&p->context)) + hptiop_request_callback(hba, req); + else + writel(1, &p->context); + } + else + hptiop_request_callback(hba, req); + } + } +} + +static int __iop_intr(struct hptiop_hba *hba) +{ + struct hpt_iopmu __iomem *iop = hba->iop; + u32 status; + int ret = 0; + + status = readl(&iop->outbound_intstatus); + + if (status & IOPMU_OUTBOUND_INT_MSG0) { + u32 msg = readl(&iop->outbound_msgaddr0); + dprintk("received outbound msg %x\n", msg); + writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus); + hptiop_message_callback(hba, msg); + ret = 1; + } + + if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) { + hptiop_drain_outbound_queue(hba); + ret = 1; + } + + return ret; +} + +static int iop_send_sync_request(struct hptiop_hba *hba, + void __iomem *_req, u32 millisec) +{ + struct hpt_iop_request_header __iomem *req = _req; + u32 i; + + writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, + &req->flags); + + writel(0, &req->context); + + writel((unsigned long)req - (unsigned long)hba->iop, + &hba->iop->inbound_queue); + + hptiop_pci_posting_flush(hba->iop); + + for (i = 0; i < millisec; i++) { + __iop_intr(hba); + if (readl(&req->context)) + return 0; + msleep(1); + } + + return -1; +} + +static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec) +{ + u32 i; + + hba->msg_done = 0; + + writel(msg, &hba->iop->inbound_msgaddr0); + + hptiop_pci_posting_flush(hba->iop); + + for (i = 0; i < millisec; i++) { + spin_lock_irq(hba->host->host_lock); + __iop_intr(hba); + spin_unlock_irq(hba->host->host_lock); + if (hba->msg_done) + break; + msleep(1); + } + + return hba->msg_done? 0 : -1; +} + +static int iop_get_config(struct hptiop_hba *hba, + struct hpt_iop_request_get_config *config) +{ + u32 req32; + struct hpt_iop_request_get_config __iomem *req; + + req32 = readl(&hba->iop->inbound_queue); + if (req32 == IOPMU_QUEUE_EMPTY) + return -1; + + req = (struct hpt_iop_request_get_config __iomem *) + ((unsigned long)hba->iop + req32); + + writel(0, &req->header.flags); + writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type); + writel(sizeof(struct hpt_iop_request_get_config), &req->header.size); + writel(IOP_RESULT_PENDING, &req->header.result); + + if (iop_send_sync_request(hba, req, 20000)) { + dprintk("Get config send cmd failed\n"); + return -1; + } + + memcpy_fromio(config, req, sizeof(*config)); + writel(req32, &hba->iop->outbound_queue); + return 0; +} + +static int iop_set_config(struct hptiop_hba *hba, + struct hpt_iop_request_set_config *config) +{ + u32 req32; + struct hpt_iop_request_set_config __iomem *req; + + req32 = readl(&hba->iop->inbound_queue); + if (req32 == IOPMU_QUEUE_EMPTY) + return -1; + + req = (struct hpt_iop_request_set_config __iomem *) + ((unsigned long)hba->iop + req32); + + memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header), + (u8 *)config + sizeof(struct hpt_iop_request_header), + sizeof(struct hpt_iop_request_set_config) - + sizeof(struct hpt_iop_request_header)); + + writel(0, &req->header.flags); + writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type); + writel(sizeof(struct hpt_iop_request_set_config), &req->header.size); + writel(IOP_RESULT_PENDING, &req->header.result); + + if (iop_send_sync_request(hba, req, 20000)) { + dprintk("Set config send cmd failed\n"); + return -1; + } + + writel(req32, &hba->iop->outbound_queue); + return 0; +} + +static int hptiop_initialize_iop(struct hptiop_hba *hba) +{ + struct hpt_iopmu __iomem *iop = hba->iop; + + /* enable interrupts */ + writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0), + &iop->outbound_intmask); + + hba->initialized = 1; + + /* start background tasks */ + if (iop_send_sync_msg(hba, + IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { + printk(KERN_ERR "scsi%d: fail to start background task\n", + hba->host->host_no); + return -1; + } + return 0; +} + +static int hptiop_map_pci_bar(struct hptiop_hba *hba) +{ + u32 mem_base_phy, length; + void __iomem *mem_base_virt; + struct pci_dev *pcidev = hba->pcidev; + + if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_MEM)) { + printk(KERN_ERR "scsi%d: pci resource invalid\n", + hba->host->host_no); + return -1; + } + + mem_base_phy = pci_resource_start(pcidev, 0); + length = pci_resource_len(pcidev, 0); + mem_base_virt = ioremap(mem_base_phy, length); + + if (!mem_base_virt) { + printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n", + hba->host->host_no); + return -1; + } + + hba->iop = mem_base_virt; + dprintk("hptiop_map_pci_bar: iop=%p\n", hba->iop); + return 0; +} + +static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg) +{ + dprintk("iop message 0x%x\n", msg); + + if (!hba->initialized) + return; + + if (msg == IOPMU_INBOUND_MSG0_RESET) { + atomic_set(&hba->resetting, 0); + wake_up(&hba->reset_wq); + } + else if (msg <= IOPMU_INBOUND_MSG0_MAX) + hba->msg_done = 1; +} + +static inline struct hptiop_request *get_req(struct hptiop_hba *hba) +{ + struct hptiop_request *ret; + + dprintk("get_req : req=%p\n", hba->req_list); + + ret = hba->req_list; + if (ret) + hba->req_list = ret->next; + + return ret; +} + +static inline void free_req(struct hptiop_hba *hba, struct hptiop_request *req) +{ + dprintk("free_req(%d, %p)\n", req->index, req); + req->next = hba->req_list; + hba->req_list = req; +} + +static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag) +{ + struct hpt_iop_request_scsi_command *req; + struct scsi_cmnd *scp; + + req = (struct hpt_iop_request_scsi_command *)hba->reqs[tag].req_virt; + dprintk("hptiop_host_request_callback: req=%p, type=%d, " + "result=%d, context=0x%x tag=%d\n", + req, req->header.type, req->header.result, + req->header.context, tag); + + BUG_ON(!req->header.result); + BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND)); + + scp = hba->reqs[tag].scp; + + if (HPT_SCP(scp)->mapped) { + if (scp->use_sg) + pci_unmap_sg(hba->pcidev, + (struct scatterlist *)scp->request_buffer, + scp->use_sg, + scp->sc_data_direction + ); + else + pci_unmap_single(hba->pcidev, + HPT_SCP(scp)->dma_handle, + scp->request_bufflen, + scp->sc_data_direction + ); + } + + switch (le32_to_cpu(req->header.result)) { + case IOP_RESULT_SUCCESS: + scp->result = (DID_OK<<16); + break; + case IOP_RESULT_BAD_TARGET: + scp->result = (DID_BAD_TARGET<<16); + break; + case IOP_RESULT_BUSY: + scp->result = (DID_BUS_BUSY<<16); + break; + case IOP_RESULT_RESET: + scp->result = (DID_RESET<<16); + break; + case IOP_RESULT_FAIL: + scp->result = (DID_ERROR<<16); + break; + case IOP_RESULT_INVALID_REQUEST: + scp->result = (DID_ABORT<<16); + break; + case IOP_RESULT_MODE_SENSE_CHECK_CONDITION: + scp->result = SAM_STAT_CHECK_CONDITION; + memset(&scp->sense_buffer, + 0, sizeof(scp->sense_buffer)); + memcpy(&scp->sense_buffer, + &req->sg_list, le32_to_cpu(req->dataxfer_length)); + break; + + default: + scp->result = ((DRIVER_INVALID|SUGGEST_ABORT)<<24) | + (DID_ABORT<<16); + break; + } + + dprintk("scsi_done(%p)\n", scp); + scp->scsi_done(scp); + free_req(hba, &hba->reqs[tag]); +} + +void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag) +{ + struct hpt_iop_request_header __iomem *req; + struct hpt_iop_request_ioctl_command __iomem *p; + struct hpt_ioctl_k *arg; + + req = (struct hpt_iop_request_header __iomem *) + ((unsigned long)hba->iop + tag); + dprintk("hptiop_iop_request_callback: req=%p, type=%d, " + "result=%d, context=0x%x tag=%d\n", + req, readl(&req->type), readl(&req->result), + readl(&req->context), tag); + + BUG_ON(!readl(&req->result)); + BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND); + + p = (struct hpt_iop_request_ioctl_command __iomem *)req; + arg = (struct hpt_ioctl_k *)(unsigned long) + (readl(&req->context) | + ((u64)readl(&req->context_hi32)<<32)); + + if (readl(&req->result) == IOP_RESULT_SUCCESS) { + arg->result = HPT_IOCTL_RESULT_OK; + + if (arg->outbuf_size) + memcpy_fromio(arg->outbuf, + &p->buf[(readl(&p->inbuf_size) + 3)& ~3], + arg->outbuf_size); + + if (arg->bytes_returned) + *arg->bytes_returned = arg->outbuf_size; + } + else + arg->result = HPT_IOCTL_RESULT_FAILED; + + arg->done(arg); + writel(tag, &hba->iop->outbound_queue); +} + +static irqreturn_t hptiop_intr(int irq, void *dev_id, struct pt_regs *regs) +{ + struct hptiop_hba *hba = dev_id; + int handled; + unsigned long flags; + + spin_lock_irqsave(hba->host->host_lock, flags); + handled = __iop_intr(hba); + spin_unlock_irqrestore(hba->host->host_lock, flags); + + return handled; +} + +static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg) +{ + struct Scsi_Host *host = scp->device->host; + struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; + struct scatterlist *sglist = (struct scatterlist *)scp->request_buffer; + + /* + * though we'll not get non-use_sg fields anymore, + * keep use_sg checking anyway + */ + if (scp->use_sg) { + int idx; + + HPT_SCP(scp)->sgcnt = pci_map_sg(hba->pcidev, + sglist, scp->use_sg, + scp->sc_data_direction); + HPT_SCP(scp)->mapped = 1; + BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors); + + for (idx = 0; idx < HPT_SCP(scp)->sgcnt; idx++) { + psg[idx].pci_address = + cpu_to_le64(sg_dma_address(&sglist[idx])); + psg[idx].size = cpu_to_le32(sg_dma_len(&sglist[idx])); + psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ? + cpu_to_le32(1) : 0; + } + + return HPT_SCP(scp)->sgcnt; + } else { + HPT_SCP(scp)->dma_handle = pci_map_single( + hba->pcidev, + scp->request_buffer, + scp->request_bufflen, + scp->sc_data_direction + ); + HPT_SCP(scp)->mapped = 1; + psg->pci_address = cpu_to_le64(HPT_SCP(scp)->dma_handle); + psg->size = cpu_to_le32(scp->request_bufflen); + psg->eot = cpu_to_le32(1); + return 1; + } +} + +static int hptiop_queuecommand(struct scsi_cmnd *scp, + void (*done)(struct scsi_cmnd *)) +{ + struct Scsi_Host *host = scp->device->host; + struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; + struct hpt_iop_request_scsi_command *req; + int sg_count = 0; + struct hptiop_request *_req; + + BUG_ON(!done); + scp->scsi_done = done; + + /* + * hptiop_shutdown will flash controller cache. + */ + if (scp->cmnd[0] == SYNCHRONIZE_CACHE) { + scp->result = DID_OK<<16; + goto cmd_done; + } + + _req = get_req(hba); + if (_req == NULL) { + dprintk("hptiop_queuecmd : no free req\n"); + scp->result = DID_BUS_BUSY << 16; + goto cmd_done; + } + + _req->scp = scp; + + dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%d cdb=(%x-%x-%x) " + "req_index=%d, req=%p\n", + scp, + host->host_no, scp->device->channel, + scp->device->id, scp->device->lun, + *((u32 *)&scp->cmnd), + *((u32 *)&scp->cmnd + 1), + *((u32 *)&scp->cmnd + 2), + _req->index, _req->req_virt); + + scp->result = 0; + + if (scp->device->channel || scp->device->lun || + scp->device->id > hba->max_devices) { + scp->result = DID_BAD_TARGET << 16; + free_req(hba, _req); + goto cmd_done; + } + + req = (struct hpt_iop_request_scsi_command *)_req->req_virt; + + /* build S/G table */ + if (scp->request_bufflen) + sg_count = hptiop_buildsgl(scp, req->sg_list); + else + HPT_SCP(scp)->mapped = 0; + + req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); + req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND); + req->header.result = cpu_to_le32(IOP_RESULT_PENDING); + req->header.context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | + (u32)_req->index); + req->header.context_hi32 = 0; + req->dataxfer_length = cpu_to_le32(scp->bufflen); + req->channel = scp->device->channel; + req->target = scp->device->id; + req->lun = scp->device->lun; + req->header.size = cpu_to_le32( + sizeof(struct hpt_iop_request_scsi_command) + - sizeof(struct hpt_iopsg) + + sg_count * sizeof(struct hpt_iopsg)); + + memcpy(req->cdb, scp->cmnd, sizeof(req->cdb)); + + writel(IOPMU_QUEUE_ADDR_HOST_BIT | _req->req_shifted_phy, + &hba->iop->inbound_queue); + + return 0; + +cmd_done: + dprintk("scsi_done(scp=%p)\n", scp); + scp->scsi_done(scp); + return 0; +} + +static const char *hptiop_info(struct Scsi_Host *host) +{ + return driver_name_long; +} + +static int hptiop_reset_hba(struct hptiop_hba *hba) +{ + if (atomic_xchg(&hba->resetting, 1) == 0) { + atomic_inc(&hba->reset_count); + writel(IOPMU_INBOUND_MSG0_RESET, + &hba->iop->outbound_msgaddr0); + hptiop_pci_posting_flush(hba->iop); + } + + wait_event_timeout(hba->reset_wq, + atomic_read(&hba->resetting) == 0, 60 * HZ); + + if (atomic_read(&hba->resetting)) { + /* IOP is in unkown state, abort reset */ + printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no); + return -1; + } + + if (iop_send_sync_msg(hba, + IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { + dprintk("scsi%d: fail to start background task\n", + hba->host->host_no); + } + + return 0; +} + +static int hptiop_reset(struct scsi_cmnd *scp) +{ + struct Scsi_Host * host = scp->device->host; + struct hptiop_hba * hba = (struct hptiop_hba *)host->hostdata; + + printk(KERN_WARNING "hptiop_reset(%d/%d/%d) scp=%p\n", + scp->device->host->host_no, scp->device->channel, + scp->device->id, scp); + + return hptiop_reset_hba(hba)? FAILED : SUCCESS; +} + +static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, + int queue_depth) +{ + if(queue_depth > 256) + queue_depth = 256; + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + return queue_depth; +} + +struct hptiop_getinfo { + char __user *buffer; + loff_t buflength; + loff_t bufoffset; + loff_t buffillen; + loff_t filpos; +}; + +static void hptiop_copy_mem_info(struct hptiop_getinfo *pinfo, + char *data, int datalen) +{ + if (pinfo->filpos < pinfo->bufoffset) { + if (pinfo->filpos + datalen <= pinfo->bufoffset) { + pinfo->filpos += datalen; + return; + } else { + data += (pinfo->bufoffset - pinfo->filpos); + datalen -= (pinfo->bufoffset - pinfo->filpos); + pinfo->filpos = pinfo->bufoffset; + } + } + + pinfo->filpos += datalen; + if (pinfo->buffillen == pinfo->buflength) + return; + + if (pinfo->buflength - pinfo->buffillen < datalen) + datalen = pinfo->buflength - pinfo->buffillen; + + if (copy_to_user(pinfo->buffer + pinfo->buffillen, data, datalen)) + return; + + pinfo->buffillen += datalen; +} + +static int hptiop_copy_info(struct hptiop_getinfo *pinfo, char *fmt, ...) +{ + va_list args; + char buf[128]; + int len; + + va_start(args, fmt); + len = vsnprintf(buf, sizeof(buf), fmt, args); + va_end(args); + hptiop_copy_mem_info(pinfo, buf, len); + return len; +} + +static void hptiop_ioctl_done(struct hpt_ioctl_k *arg) +{ + arg->done = NULL; + wake_up(&arg->hba->ioctl_wq); +} + +static void hptiop_do_ioctl(struct hpt_ioctl_k *arg) +{ + struct hptiop_hba *hba = arg->hba; + u32 val; + struct hpt_iop_request_ioctl_command __iomem *req; + int ioctl_retry = 0; + + dprintk("scsi%d: hptiop_do_ioctl\n", hba->host->host_no); + + /* + * check (in + out) buff size from application. + * outbuf must be dword aligned. + */ + if (((arg->inbuf_size + 3) & ~3) + arg->outbuf_size > + hba->max_request_size + - sizeof(struct hpt_iop_request_header) + - 4 * sizeof(u32)) { + dprintk("scsi%d: ioctl buf size (%d/%d) is too large\n", + hba->host->host_no, + arg->inbuf_size, arg->outbuf_size); + arg->result = HPT_IOCTL_RESULT_FAILED; + return; + } + +retry: + spin_lock_irq(hba->host->host_lock); + + val = readl(&hba->iop->inbound_queue); + if (val == IOPMU_QUEUE_EMPTY) { + spin_unlock_irq(hba->host->host_lock); + dprintk("scsi%d: no free req for ioctl\n", hba->host->host_no); + arg->result = -1; + return; + } + + req = (struct hpt_iop_request_ioctl_command __iomem *) + ((unsigned long)hba->iop + val); + + writel(HPT_CTL_CODE_LINUX_TO_IOP(arg->ioctl_code), + &req->ioctl_code); + writel(arg->inbuf_size, &req->inbuf_size); + writel(arg->outbuf_size, &req->outbuf_size); + + /* + * use the buffer on the IOP local memory first, then copy it + * back to host. + * the caller's request buffer shoudl be little-endian. + */ + if (arg->inbuf_size) + memcpy_toio(req->buf, arg->inbuf, arg->inbuf_size); + + /* correct the controller ID for IOP */ + if ((arg->ioctl_code == HPT_IOCTL_GET_CHANNEL_INFO || + arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO_V2 || + arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO) + && arg->inbuf_size >= sizeof(u32)) + writel(0, req->buf); + + writel(IOP_REQUEST_TYPE_IOCTL_COMMAND, &req->header.type); + writel(0, &req->header.flags); + writel(offsetof(struct hpt_iop_request_ioctl_command, buf) + + arg->inbuf_size, &req->header.size); + writel((u32)(unsigned long)arg, &req->header.context); + writel(BITS_PER_LONG > 32 ? (u32)((unsigned long)arg>>32) : 0, + &req->header.context_hi32); + writel(IOP_RESULT_PENDING, &req->header.result); + + arg->result = HPT_IOCTL_RESULT_FAILED; + arg->done = hptiop_ioctl_done; + + writel(val, &hba->iop->inbound_queue); + hptiop_pci_posting_flush(hba->iop); + + spin_unlock_irq(hba->host->host_lock); + + wait_event_timeout(hba->ioctl_wq, arg->done == NULL, 60 * HZ); + + if (arg->done != NULL) { + hptiop_reset_hba(hba); + if (ioctl_retry++ < 3) + goto retry; + } + + dprintk("hpt_iop_ioctl %x result %d\n", + arg->ioctl_code, arg->result); +} + +static int __hpt_do_ioctl(struct hptiop_hba *hba, u32 code, void *inbuf, + u32 insize, void *outbuf, u32 outsize) +{ + struct hpt_ioctl_k arg; + arg.hba = hba; + arg.ioctl_code = code; + arg.inbuf = inbuf; + arg.outbuf = outbuf; + arg.inbuf_size = insize; + arg.outbuf_size = outsize; + arg.bytes_returned = NULL; + hptiop_do_ioctl(&arg); + return arg.result; +} + +static inline int hpt_id_valid(__le32 id) +{ + return id != 0 && id != cpu_to_le32(0xffffffff); +} + +static int hptiop_get_controller_info(struct hptiop_hba *hba, + struct hpt_controller_info *pinfo) +{ + int id = 0; + + return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CONTROLLER_INFO, + &id, sizeof(int), pinfo, sizeof(*pinfo)); +} + + +static int hptiop_get_channel_info(struct hptiop_hba *hba, int bus, + struct hpt_channel_info *pinfo) +{ + u32 ids[2]; + + ids[0] = 0; + ids[1] = bus; + return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CHANNEL_INFO, + ids, sizeof(ids), pinfo, sizeof(*pinfo)); + +} + +static int hptiop_get_logical_devices(struct hptiop_hba *hba, + __le32 *pids, int maxcount) +{ + int i; + u32 count = maxcount - 1; + + if (__hpt_do_ioctl(hba, HPT_IOCTL_GET_LOGICAL_DEVICES, + &count, sizeof(u32), + pids, sizeof(u32) * maxcount)) + return -1; + + maxcount = le32_to_cpu(pids[0]); + for (i = 0; i < maxcount; i++) + pids[i] = pids[i+1]; + + return maxcount; +} + +static int hptiop_get_device_info_v3(struct hptiop_hba *hba, __le32 id, + struct hpt_logical_device_info_v3 *pinfo) +{ + return __hpt_do_ioctl(hba, HPT_IOCTL_GET_DEVICE_INFO_V3, + &id, sizeof(u32), + pinfo, sizeof(*pinfo)); +} + +static const char *get_array_status(struct hpt_logical_device_info_v3 *devinfo) +{ + static char s[64]; + u32 flags = le32_to_cpu(devinfo->u.array.flags); + u32 trans_prog = le32_to_cpu(devinfo->u.array.transforming_progress); + u32 reb_prog = le32_to_cpu(devinfo->u.array.rebuilding_progress); + + if (flags & ARRAY_FLAG_DISABLED) + return "Disabled"; + else if (flags & ARRAY_FLAG_TRANSFORMING) + sprintf(s, "Expanding/Migrating %d.%d%%%s%s", + trans_prog / 100, + trans_prog % 100, + (flags & (ARRAY_FLAG_NEEDBUILDING|ARRAY_FLAG_BROKEN))? + ", Critical" : "", + ((flags & ARRAY_FLAG_NEEDINITIALIZING) && + !(flags & ARRAY_FLAG_REBUILDING) && + !(flags & ARRAY_FLAG_INITIALIZING))? + ", Unintialized" : ""); + else if ((flags & ARRAY_FLAG_BROKEN) && + devinfo->u.array.array_type != AT_RAID6) + return "Critical"; + else if (flags & ARRAY_FLAG_REBUILDING) + sprintf(s, + (flags & ARRAY_FLAG_NEEDINITIALIZING)? + "%sBackground initializing %d.%d%%" : + "%sRebuilding %d.%d%%", + (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", + reb_prog / 100, + reb_prog % 100); + else if (flags & ARRAY_FLAG_VERIFYING) + sprintf(s, "%sVerifying %d.%d%%", + (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", + reb_prog / 100, + reb_prog % 100); + else if (flags & ARRAY_FLAG_INITIALIZING) + sprintf(s, "%sForground initializing %d.%d%%", + (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", + reb_prog / 100, + reb_prog % 100); + else if (flags & ARRAY_FLAG_NEEDTRANSFORM) + sprintf(s,"%s%s%s", "Need Expanding/Migrating", + (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", + ((flags & ARRAY_FLAG_NEEDINITIALIZING) && + !(flags & ARRAY_FLAG_REBUILDING) && + !(flags & ARRAY_FLAG_INITIALIZING))? + ", Unintialized" : ""); + else if (flags & ARRAY_FLAG_NEEDINITIALIZING && + !(flags & ARRAY_FLAG_REBUILDING) && + !(flags & ARRAY_FLAG_INITIALIZING)) + sprintf(s,"%sUninitialized", + (flags & ARRAY_FLAG_BROKEN)? "Critical, " : ""); + else if ((flags & ARRAY_FLAG_NEEDBUILDING) || + (flags & ARRAY_FLAG_BROKEN)) + return "Critical"; + else + return "Normal"; + return s; +} + +static void hptiop_dump_devinfo(struct hptiop_hba *hba, + struct hptiop_getinfo *pinfo, __le32 id, int indent) +{ + struct hpt_logical_device_info_v3 devinfo; + int i; + u64 capacity; + + for (i = 0; i < indent; i++) + hptiop_copy_info(pinfo, "\t"); + + if (hptiop_get_device_info_v3(hba, id, &devinfo)) { + hptiop_copy_info(pinfo, "unknown\n"); + return; + } + + switch (devinfo.type) { + + case LDT_DEVICE: { + struct hd_driveid *driveid; + u32 flags = le32_to_cpu(devinfo.u.device.flags); + + driveid = (struct hd_driveid *)devinfo.u.device.ident; + /* model[] is 40 chars long, but we just want 20 chars here */ + driveid->model[20] = 0; + + if (indent) + if (flags & DEVICE_FLAG_DISABLED) + hptiop_copy_info(pinfo,"Missing\n"); + else + hptiop_copy_info(pinfo, "CH%d %s\n", + devinfo.u.device.path_id + 1, + driveid->model); + else { + capacity = le64_to_cpu(devinfo.capacity) * 512; + do_div(capacity, 1000000); + hptiop_copy_info(pinfo, + "CH%d %s, %lluMB, %s %s%s%s%s\n", + devinfo.u.device.path_id + 1, + driveid->model, + capacity, + (flags & DEVICE_FLAG_DISABLED)? + "Disabled" : "Normal", + devinfo.u.device.read_ahead_enabled? + "[RA]" : "", + devinfo.u.device.write_cache_enabled? + "[WC]" : "", + devinfo.u.device.TCQ_enabled? + "[TCQ]" : "", + devinfo.u.device.NCQ_enabled? + "[NCQ]" : "" + ); + } + break; + } + + case LDT_ARRAY: + if (devinfo.target_id != INVALID_TARGET_ID) + hptiop_copy_info(pinfo, "[DISK %d_%d] ", + devinfo.vbus_id, devinfo.target_id); + + capacity = le64_to_cpu(devinfo.capacity) * 512; + do_div(capacity, 1000000); + hptiop_copy_info(pinfo, "%s (%s), %lluMB, %s\n", + devinfo.u.array.name, + devinfo.u.array.array_type==AT_RAID0? "RAID0" : + devinfo.u.array.array_type==AT_RAID1? "RAID1" : + devinfo.u.array.array_type==AT_RAID5? "RAID5" : + devinfo.u.array.array_type==AT_RAID6? "RAID6" : + devinfo.u.array.array_type==AT_JBOD? "JBOD" : + "unknown", + capacity, + get_array_status(&devinfo)); + for (i = 0; i < devinfo.u.array.ndisk; i++) { + if (hpt_id_valid(devinfo.u.array.members[i])) { + if (cpu_to_le16(1<<i) & + devinfo.u.array.critical_members) + hptiop_copy_info(pinf |