diff options
Diffstat (limited to 'drivers/scsi/hptiop.c')
| -rw-r--r-- | drivers/scsi/hptiop.c | 1699 |
1 files changed, 1699 insertions, 0 deletions
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c new file mode 100644 index 0000000000..f5334ccbf2 --- /dev/null +++ b/drivers/scsi/hptiop.c @@ -0,0 +1,1699 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * HighPoint RR3xxx/4xxx controller driver for Linux + * Copyright (C) 2006-2015 HighPoint Technologies, Inc. All Rights Reserved. + * + * Please report bugs/comments/suggestions to linux@highpoint-tech.com + * + * For more information, visit http://www.highpoint-tech.com + */ +#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/gfp.h> +#include <linux/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/4xxx Controller Driver"); + +static char driver_name[] = "hptiop"; +static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver"; +static const char driver_ver[] = "v1.10.0"; + +static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec); +static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag, + struct hpt_iop_request_scsi_command *req); +static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag); +static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag); +static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg); + +static int iop_wait_ready_itl(struct hptiop_hba *hba, u32 millisec) +{ + u32 req = 0; + int i; + + for (i = 0; i < millisec; i++) { + req = readl(&hba->u.itl.iop->inbound_queue); + if (req != IOPMU_QUEUE_EMPTY) + break; + msleep(1); + } + + if (req != IOPMU_QUEUE_EMPTY) { + writel(req, &hba->u.itl.iop->outbound_queue); + readl(&hba->u.itl.iop->outbound_intstatus); + return 0; + } + + return -1; +} + +static int iop_wait_ready_mv(struct hptiop_hba *hba, u32 millisec) +{ + return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec); +} + +static int iop_wait_ready_mvfrey(struct hptiop_hba *hba, u32 millisec) +{ + return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec); +} + +static void hptiop_request_callback_itl(struct hptiop_hba *hba, u32 tag) +{ + if (tag & IOPMU_QUEUE_ADDR_HOST_BIT) + hptiop_host_request_callback_itl(hba, + tag & ~IOPMU_QUEUE_ADDR_HOST_BIT); + else + hptiop_iop_request_callback_itl(hba, tag); +} + +static void hptiop_drain_outbound_queue_itl(struct hptiop_hba *hba) +{ + u32 req; + + while ((req = readl(&hba->u.itl.iop->outbound_queue)) != + IOPMU_QUEUE_EMPTY) { + + if (req & IOPMU_QUEUE_MASK_HOST_BITS) + hptiop_request_callback_itl(hba, req); + else { + struct hpt_iop_request_header __iomem * p; + + p = (struct hpt_iop_request_header __iomem *) + ((char __iomem *)hba->u.itl.iop + req); + + if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) { + if (readl(&p->context)) + hptiop_request_callback_itl(hba, req); + else + writel(1, &p->context); + } + else + hptiop_request_callback_itl(hba, req); + } + } +} + +static int iop_intr_itl(struct hptiop_hba *hba) +{ + struct hpt_iopmu_itl __iomem *iop = hba->u.itl.iop; + void __iomem *plx = hba->u.itl.plx; + u32 status; + int ret = 0; + + if (plx && readl(plx + 0x11C5C) & 0xf) + writel(1, plx + 0x11C60); + + 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_itl(hba); + ret = 1; + } + + return ret; +} + +static u64 mv_outbound_read(struct hpt_iopmu_mv __iomem *mu) +{ + u32 outbound_tail = readl(&mu->outbound_tail); + u32 outbound_head = readl(&mu->outbound_head); + + if (outbound_tail != outbound_head) { + u64 p; + + memcpy_fromio(&p, &mu->outbound_q[mu->outbound_tail], 8); + outbound_tail++; + + if (outbound_tail == MVIOP_QUEUE_LEN) + outbound_tail = 0; + writel(outbound_tail, &mu->outbound_tail); + return p; + } else + return 0; +} + +static void mv_inbound_write(u64 p, struct hptiop_hba *hba) +{ + u32 inbound_head = readl(&hba->u.mv.mu->inbound_head); + u32 head = inbound_head + 1; + + if (head == MVIOP_QUEUE_LEN) + head = 0; + + memcpy_toio(&hba->u.mv.mu->inbound_q[inbound_head], &p, 8); + writel(head, &hba->u.mv.mu->inbound_head); + writel(MVIOP_MU_INBOUND_INT_POSTQUEUE, + &hba->u.mv.regs->inbound_doorbell); +} + +static void hptiop_request_callback_mv(struct hptiop_hba *hba, u64 tag) +{ + u32 req_type = (tag >> 5) & 0x7; + struct hpt_iop_request_scsi_command *req; + + dprintk("hptiop_request_callback_mv: tag=%llx\n", tag); + + BUG_ON((tag & MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT) == 0); + + switch (req_type) { + case IOP_REQUEST_TYPE_GET_CONFIG: + case IOP_REQUEST_TYPE_SET_CONFIG: + hba->msg_done = 1; + break; + + case IOP_REQUEST_TYPE_SCSI_COMMAND: + req = hba->reqs[tag >> 8].req_virt; + if (likely(tag & MVIOP_MU_QUEUE_REQUEST_RESULT_BIT)) + req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS); + + hptiop_finish_scsi_req(hba, tag>>8, req); + break; + + default: + break; + } +} + +static int iop_intr_mv(struct hptiop_hba *hba) +{ + u32 status; + int ret = 0; + + status = readl(&hba->u.mv.regs->outbound_doorbell); + writel(~status, &hba->u.mv.regs->outbound_doorbell); + + if (status & MVIOP_MU_OUTBOUND_INT_MSG) { + u32 msg; + msg = readl(&hba->u.mv.mu->outbound_msg); + dprintk("received outbound msg %x\n", msg); + hptiop_message_callback(hba, msg); + ret = 1; + } + + if (status & MVIOP_MU_OUTBOUND_INT_POSTQUEUE) { + u64 tag; + + while ((tag = mv_outbound_read(hba->u.mv.mu))) + hptiop_request_callback_mv(hba, tag); + ret = 1; + } + + return ret; +} + +static void hptiop_request_callback_mvfrey(struct hptiop_hba *hba, u32 _tag) +{ + u32 req_type = _tag & 0xf; + struct hpt_iop_request_scsi_command *req; + + switch (req_type) { + case IOP_REQUEST_TYPE_GET_CONFIG: + case IOP_REQUEST_TYPE_SET_CONFIG: + hba->msg_done = 1; + break; + + case IOP_REQUEST_TYPE_SCSI_COMMAND: + req = hba->reqs[(_tag >> 4) & 0xff].req_virt; + if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT)) + req->header.result = IOP_RESULT_SUCCESS; + hptiop_finish_scsi_req(hba, (_tag >> 4) & 0xff, req); + break; + + default: + break; + } +} + +static int iop_intr_mvfrey(struct hptiop_hba *hba) +{ + u32 _tag, status, cptr, cur_rptr; + int ret = 0; + + if (hba->initialized) + writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); + + status = readl(&(hba->u.mvfrey.mu->f0_doorbell)); + if (status) { + writel(status, &(hba->u.mvfrey.mu->f0_doorbell)); + if (status & CPU_TO_F0_DRBL_MSG_BIT) { + u32 msg = readl(&(hba->u.mvfrey.mu->cpu_to_f0_msg_a)); + dprintk("received outbound msg %x\n", msg); + hptiop_message_callback(hba, msg); + } + ret = 1; + } + + status = readl(&(hba->u.mvfrey.mu->isr_cause)); + if (status) { + writel(status, &(hba->u.mvfrey.mu->isr_cause)); + do { + cptr = *hba->u.mvfrey.outlist_cptr & 0xff; + cur_rptr = hba->u.mvfrey.outlist_rptr; + while (cur_rptr != cptr) { + cur_rptr++; + if (cur_rptr == hba->u.mvfrey.list_count) + cur_rptr = 0; + + _tag = hba->u.mvfrey.outlist[cur_rptr].val; + BUG_ON(!(_tag & IOPMU_QUEUE_MASK_HOST_BITS)); + hptiop_request_callback_mvfrey(hba, _tag); + ret = 1; + } + hba->u.mvfrey.outlist_rptr = cur_rptr; + } while (cptr != (*hba->u.mvfrey.outlist_cptr & 0xff)); + } + + if (hba->initialized) + writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); + + return ret; +} + +static int iop_send_sync_request_itl(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->u.itl.iop, + &hba->u.itl.iop->inbound_queue); + readl(&hba->u.itl.iop->outbound_intstatus); + + for (i = 0; i < millisec; i++) { + iop_intr_itl(hba); + if (readl(&req->context)) + return 0; + msleep(1); + } + + return -1; +} + +static int iop_send_sync_request_mv(struct hptiop_hba *hba, + u32 size_bits, u32 millisec) +{ + struct hpt_iop_request_header *reqhdr = hba->u.mv.internal_req; + u32 i; + + hba->msg_done = 0; + reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST); + mv_inbound_write(hba->u.mv.internal_req_phy | + MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bits, hba); + + for (i = 0; i < millisec; i++) { + iop_intr_mv(hba); + if (hba->msg_done) + return 0; + msleep(1); + } + return -1; +} + +static int iop_send_sync_request_mvfrey(struct hptiop_hba *hba, + u32 size_bits, u32 millisec) +{ + struct hpt_iop_request_header *reqhdr = + hba->u.mvfrey.internal_req.req_virt; + u32 i; + + hba->msg_done = 0; + reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST); + hba->ops->post_req(hba, &(hba->u.mvfrey.internal_req)); + + for (i = 0; i < millisec; i++) { + iop_intr_mvfrey(hba); + if (hba->msg_done) + break; + msleep(1); + } + return hba->msg_done ? 0 : -1; +} + +static void hptiop_post_msg_itl(struct hptiop_hba *hba, u32 msg) +{ + writel(msg, &hba->u.itl.iop->inbound_msgaddr0); + readl(&hba->u.itl.iop->outbound_intstatus); +} + +static void hptiop_post_msg_mv(struct hptiop_hba *hba, u32 msg) +{ + writel(msg, &hba->u.mv.mu->inbound_msg); + writel(MVIOP_MU_INBOUND_INT_MSG, &hba->u.mv.regs->inbound_doorbell); + readl(&hba->u.mv.regs->inbound_doorbell); +} + +static void hptiop_post_msg_mvfrey(struct hptiop_hba *hba, u32 msg) +{ + writel(msg, &(hba->u.mvfrey.mu->f0_to_cpu_msg_a)); + readl(&(hba->u.mvfrey.mu->f0_to_cpu_msg_a)); +} + +static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec) +{ + u32 i; + + hba->msg_done = 0; + hba->ops->disable_intr(hba); + hba->ops->post_msg(hba, msg); + + for (i = 0; i < millisec; i++) { + spin_lock_irq(hba->host->host_lock); + hba->ops->iop_intr(hba); + spin_unlock_irq(hba->host->host_lock); + if (hba->msg_done) + break; + msleep(1); + } + + hba->ops->enable_intr(hba); + return hba->msg_done? 0 : -1; +} + +static int iop_get_config_itl(struct hptiop_hba *hba, + struct hpt_iop_request_get_config *config) +{ + u32 req32; + struct hpt_iop_request_get_config __iomem *req; + + req32 = readl(&hba->u.itl.iop->inbound_queue); + if (req32 == IOPMU_QUEUE_EMPTY) + return -1; + + req = (struct hpt_iop_request_get_config __iomem *) + ((unsigned long)hba->u.itl.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_itl(hba, req, 20000)) { + dprintk("Get config send cmd failed\n"); + return -1; + } + + memcpy_fromio(config, req, sizeof(*config)); + writel(req32, &hba->u.itl.iop->outbound_queue); + return 0; +} + +static int iop_get_config_mv(struct hptiop_hba *hba, + struct hpt_iop_request_get_config *config) +{ + struct hpt_iop_request_get_config *req = hba->u.mv.internal_req; + + req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); + req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG); + req->header.size = + cpu_to_le32(sizeof(struct hpt_iop_request_get_config)); + req->header.result = cpu_to_le32(IOP_RESULT_PENDING); + req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG<<5); + req->header.context_hi32 = 0; + + if (iop_send_sync_request_mv(hba, 0, 20000)) { + dprintk("Get config send cmd failed\n"); + return -1; + } + + memcpy(config, req, sizeof(struct hpt_iop_request_get_config)); + return 0; +} + +static int iop_get_config_mvfrey(struct hptiop_hba *hba, + struct hpt_iop_request_get_config *config) +{ + struct hpt_iop_request_get_config *info = hba->u.mvfrey.config; + + if (info->header.size != sizeof(struct hpt_iop_request_get_config) || + info->header.type != IOP_REQUEST_TYPE_GET_CONFIG) + return -1; + + config->interface_version = info->interface_version; + config->firmware_version = info->firmware_version; + config->max_requests = info->max_requests; + config->request_size = info->request_size; + config->max_sg_count = info->max_sg_count; + config->data_transfer_length = info->data_transfer_length; + config->alignment_mask = info->alignment_mask; + config->max_devices = info->max_devices; + config->sdram_size = info->sdram_size; + + return 0; +} + +static int iop_set_config_itl(struct hptiop_hba *hba, + struct hpt_iop_request_set_config *config) +{ + u32 req32; + struct hpt_iop_request_set_config __iomem *req; + + req32 = readl(&hba->u.itl.iop->inbound_queue); + if (req32 == IOPMU_QUEUE_EMPTY) + return -1; + + req = (struct hpt_iop_request_set_config __iomem *) + ((unsigned long)hba->u.itl.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_itl(hba, req, 20000)) { + dprintk("Set config send cmd failed\n"); + return -1; + } + + writel(req32, &hba->u.itl.iop->outbound_queue); + return 0; +} + +static int iop_set_config_mv(struct hptiop_hba *hba, + struct hpt_iop_request_set_config *config) +{ + struct hpt_iop_request_set_config *req = hba->u.mv.internal_req; + + memcpy(req, config, sizeof(struct hpt_iop_request_set_config)); + req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); + req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG); + req->header.size = + cpu_to_le32(sizeof(struct hpt_iop_request_set_config)); + req->header.result = cpu_to_le32(IOP_RESULT_PENDING); + req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5); + req->header.context_hi32 = 0; + + if (iop_send_sync_request_mv(hba, 0, 20000)) { + dprintk("Set config send cmd failed\n"); + return -1; + } + + return 0; +} + +static int iop_set_config_mvfrey(struct hptiop_hba *hba, + struct hpt_iop_request_set_config *config) +{ + struct hpt_iop_request_set_config *req = + hba->u.mvfrey.internal_req.req_virt; + + memcpy(req, config, sizeof(struct hpt_iop_request_set_config)); + req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); + req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG); + req->header.size = + cpu_to_le32(sizeof(struct hpt_iop_request_set_config)); + req->header.result = cpu_to_le32(IOP_RESULT_PENDING); + req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5); + req->header.context_hi32 = 0; + + if (iop_send_sync_request_mvfrey(hba, 0, 20000)) { + dprintk("Set config send cmd failed\n"); + return -1; + } + + return 0; +} + +static void hptiop_enable_intr_itl(struct hptiop_hba *hba) +{ + writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0), + &hba->u.itl.iop->outbound_intmask); +} + +static void hptiop_enable_intr_mv(struct hptiop_hba *hba) +{ + writel(MVIOP_MU_OUTBOUND_INT_POSTQUEUE | MVIOP_MU_OUTBOUND_INT_MSG, + &hba->u.mv.regs->outbound_intmask); +} + +static void hptiop_enable_intr_mvfrey(struct hptiop_hba *hba) +{ + writel(CPU_TO_F0_DRBL_MSG_BIT, &(hba->u.mvfrey.mu->f0_doorbell_enable)); + writel(0x1, &(hba->u.mvfrey.mu->isr_enable)); + writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); +} + +static int hptiop_initialize_iop(struct hptiop_hba *hba) +{ + /* enable interrupts */ + hba->ops->enable_intr(hba); + + 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 void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index) +{ + u32 mem_base_phy, length; + void __iomem *mem_base_virt; + + struct pci_dev *pcidev = hba->pcidev; + + + if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) { + printk(KERN_ERR "scsi%d: pci resource invalid\n", + hba->host->host_no); + return NULL; + } + + mem_base_phy = pci_resource_start(pcidev, index); + length = pci_resource_len(pcidev, index); + 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 NULL; + } + return mem_base_virt; +} + +static int hptiop_map_pci_bar_itl(struct hptiop_hba *hba) +{ + struct pci_dev *pcidev = hba->pcidev; + hba->u.itl.iop = hptiop_map_pci_bar(hba, 0); + if (hba->u.itl.iop == NULL) + return -1; + if ((pcidev->device & 0xff00) == 0x4400) { + hba->u.itl.plx = hba->u.itl.iop; + hba->u.itl.iop = hptiop_map_pci_bar(hba, 2); + if (hba->u.itl.iop == NULL) { + iounmap(hba->u.itl.plx); + return -1; + } + } + return 0; +} + +static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba) +{ + if (hba->u.itl.plx) + iounmap(hba->u.itl.plx); + iounmap(hba->u.itl.iop); +} + +static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba) +{ + hba->u.mv.regs = hptiop_map_pci_bar(hba, 0); + if (hba->u.mv.regs == NULL) + return -1; + + hba->u.mv.mu = hptiop_map_pci_bar(hba, 2); + if (hba->u.mv.mu == NULL) { + iounmap(hba->u.mv.regs); + return -1; + } + + return 0; +} + +static int hptiop_map_pci_bar_mvfrey(struct hptiop_hba *hba) +{ + hba->u.mvfrey.config = hptiop_map_pci_bar(hba, 0); + if (hba->u.mvfrey.config == NULL) + return -1; + + hba->u.mvfrey.mu = hptiop_map_pci_bar(hba, 2); + if (hba->u.mvfrey.mu == NULL) { + iounmap(hba->u.mvfrey.config); + return -1; + } + + return 0; +} + +static void hptiop_unmap_pci_bar_mv(struct hptiop_hba *hba) +{ + iounmap(hba->u.mv.regs); + iounmap(hba->u.mv.mu); +} + +static void hptiop_unmap_pci_bar_mvfrey(struct hptiop_hba *hba) +{ + iounmap(hba->u.mvfrey.config); + iounmap(hba->u.mvfrey.mu); +} + +static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg) +{ + dprintk("iop message 0x%x\n", msg); + + if (msg == IOPMU_INBOUND_MSG0_NOP || + msg == IOPMU_INBOUND_MSG0_RESET_COMM) + hba->msg_done = 1; + + 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 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 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_finish_scsi_req(struct hptiop_hba *hba, u32 tag, + struct hpt_iop_request_scsi_command *req) +{ + struct scsi_cmnd *scp; + + dprintk("hptiop_finish_scsi_req: 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) + scsi_dma_unmap(scp); + + switch (le32_to_cpu(req->header.result)) { + case IOP_RESULT_SUCCESS: + scsi_set_resid(scp, + scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); + 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_CHECK_CONDITION: + scsi_set_resid(scp, + scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); + scp->result = SAM_STAT_CHECK_CONDITION; + memcpy(scp->sense_buffer, &req->sg_list, SCSI_SENSE_BUFFERSIZE); + goto skip_resid; + + default: + scp->result = DID_ABORT << 16; + break; + } + + scsi_set_resid(scp, + scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); + +skip_resid: + dprintk("scsi_done(%p)\n", scp); + scsi_done(scp); + free_req(hba, &hba->reqs[tag]); +} + +static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 _tag) +{ + struct hpt_iop_request_scsi_command *req; + u32 tag; + + if (hba->iopintf_v2) { + tag = _tag & ~IOPMU_QUEUE_REQUEST_RESULT_BIT; + req = hba->reqs[tag].req_virt; + if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT)) + req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS); + } else { + tag = _tag; + req = hba->reqs[tag].req_virt; + } + + hptiop_finish_scsi_req(hba, tag, req); +} + +static void hptiop_iop_request_callback_itl(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->u.itl.iop + tag); + dprintk("hptiop_iop_request_callback_itl: 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->u.itl.iop->outbound_queue); +} + +static irqreturn_t hptiop_intr(int irq, void *dev_id) +{ + struct hptiop_hba *hba = dev_id; + int handled; + unsigned long flags; + + spin_lock_irqsave(hba->host->host_lock, flags); + handled = hba->ops->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 *sg; + int idx, nseg; + + nseg = scsi_dma_map(scp); + BUG_ON(nseg < 0); + if (!nseg) + return 0; + + HPT_SCP(scp)->sgcnt = nseg; + HPT_SCP(scp)->mapped = 1; + + BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors); + + scsi_for_each_sg(scp, sg, HPT_SCP(scp)->sgcnt, idx) { + psg[idx].pci_address = cpu_to_le64(sg_dma_address(sg)) | + hba->ops->host_phy_flag; + psg[idx].size = cpu_to_le32(sg_dma_len(sg)); + psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ? + cpu_to_le32(1) : 0; + } + return HPT_SCP(scp)->sgcnt; +} + +static void hptiop_post_req_itl(struct hptiop_hba *hba, + struct hptiop_request *_req) +{ + struct hpt_iop_request_header *reqhdr = _req->req_virt; + + reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | + (u32)_req->index); + reqhdr->context_hi32 = 0; + + if (hba->iopintf_v2) { + u32 size, size_bits; + + size = le32_to_cpu(reqhdr->size); + if (size < 256) + size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT; + else if (size < 512) + size_bits = IOPMU_QUEUE_ADDR_HOST_BIT; + else + size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT | + IOPMU_QUEUE_ADDR_HOST_BIT; + writel(_req->req_shifted_phy | size_bits, + &hba->u.itl.iop->inbound_queue); + } else + writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT, + &hba->u.itl.iop->inbound_queue); +} + +static void hptiop_post_req_mv(struct hptiop_hba *hba, + struct hptiop_request *_req) +{ + struct hpt_iop_request_header *reqhdr = _req->req_virt; + u32 size, size_bit; + + reqhdr->context = cpu_to_le32(_req->index<<8 | + IOP_REQUEST_TYPE_SCSI_COMMAND<<5); + reqhdr->context_hi32 = 0; + size = le32_to_cpu(reqhdr->size); + + if (size <= 256) + size_bit = 0; + else if (size <= 256*2) + size_bit = 1; + else if (size <= 256*3) + size_bit = 2; + else + size_bit = 3; + + mv_inbound_write((_req->req_shifted_phy << 5) | + MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bit, hba); +} + +static void hptiop_post_req_mvfrey(struct hptiop_hba *hba, + struct hptiop_request *_req) +{ + struct hpt_iop_request_header *reqhdr = _req->req_virt; + u32 index; + + reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT | + IOP_REQUEST_FLAG_ADDR_BITS | + ((_req->req_shifted_phy >> 11) & 0xffff0000)); + reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | + (_req->index << 4) | reqhdr->type); + reqhdr->context_hi32 = cpu_to_le32((_req->req_shifted_phy << 5) & + 0xffffffff); + + hba->u.mvfrey.inlist_wptr++; + index = hba->u.mvfrey.inlist_wptr & 0x3fff; + + if (index == hba->u.mvfrey.list_count) { + index = 0; + hba->u.mvfrey.inlist_wptr &= ~0x3fff; + hba->u.mvfrey.inlist_wptr ^= CL_POINTER_TOGGLE; + } + + hba->u.mvfrey.inlist[index].addr = + (dma_addr_t)_req->req_shifted_phy << 5; + hba->u.mvfrey.inlist[index].intrfc_len = (reqhdr->size + 3) / 4; + writel(hba->u.mvfrey.inlist_wptr, + &(hba->u.mvfrey.mu->inbound_write_ptr)); + readl(&(hba->u.mvfrey.mu->inbound_write_ptr)); +} + +static int hptiop_reset_comm_itl(struct hptiop_hba *hba) +{ + return 0; +} + +static int hptiop_reset_comm_mv(struct hptiop_hba *hba) +{ + return 0; +} + +static int hptiop_reset_comm_mvfrey(struct hptiop_hba *hba) +{ + u32 list_count = hba->u.mvfrey.list_count; + + if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_RESET_COMM, 3000)) + return -1; + + /* wait 100ms for MCU ready */ + msleep(100); + + writel(cpu_to_le32(hba->u.mvfrey.inlist_phy & 0xffffffff), + &(hba->u.mvfrey.mu->inbound_base)); + writel(cpu_to_le32((hba->u.mvfrey.inlist_phy >> 16) >> 16), + &(hba->u.mvfrey.mu->inbound_base_high)); + + writel(cpu_to_le32(hba->u.mvfrey.outlist_phy & 0xffffffff), + &(hba->u.mvfrey.mu->outbound_base)); + writel(cpu_to_le32((hba->u.mvfrey.outlist_phy >> 16) >> 16), + &(hba->u.mvfrey.mu->outbound_base_high)); + + writel(cpu_to_le32(hba->u.mvfrey.outlist_cptr_phy & 0xffffffff), + &(hba->u.mvfrey.mu->outbound_shadow_base)); + writel(cpu_to_le32((hba->u.mvfrey.outlist_cptr_phy >> 16) >> 16), + &(hba->u.mvfrey.mu->outbound_shadow_base_high)); + + hba->u.mvfrey.inlist_wptr = (list_count - 1) | CL_POINTER_TOGGLE; + *hba->u.mvfrey.outlist_cptr = (list_count - 1) | CL_POINTER_TOGGLE; + hba->u.mvfrey.outlist_rptr = list_count - 1; + return 0; +} + +static int hptiop_queuecommand_lck(struct scsi_cmnd *scp) +{ + 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; + + _req = get_req(hba); + if (_req == NULL) { + dprintk("hptiop_queuecmd : no free req\n"); + return SCSI_MLQUEUE_HOST_BUSY; + } + + _req->scp = scp; + + dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%llu cdb=(%08x-%08x-%08x-%08x) " + "req_index=%d, req=%p\n", + scp, + host->host_no, scp->device->channel, + scp->device->id, scp->device->lun, + cpu_to_be32(((u32 *)scp->cmnd)[0]), + cpu_to_be32(((u32 *)scp->cmnd)[1]), + cpu_to_be32(((u32 *)scp->cmnd)[2]), + cpu_to_be32(((u32 *)scp->cmnd)[3]), + _req->index, _req->req_virt); + + scp->result = 0; + + if (scp->device->channel || + (scp->device->id > hba->max_devices) || + ((scp->device->id == (hba->max_devices-1)) && scp->device->lun)) { + scp->result = DID_BAD_TARGET << 16; + free_req(hba, _req); + goto cmd_done; + } + + req = _req->req_virt; + + /* build S/G table */ + sg_count = hptiop_buildsgl(scp, req->sg_list); + if (!sg_count) + 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->dataxfer_length = cpu_to_le32(scsi_bufflen(scp)); + req->channel = scp->device->channel; + req->target = scp->device->id; + req->lun = scp->device->lun; + req->header.size = cpu_to_le32(struct_size(req, sg_list, sg_count)); + + memcpy(req->cdb, scp->cmnd, sizeof(req->cdb)); + hba->ops->post_req(hba, _req); + return 0; + +cmd_done: + dprintk("scsi_done(scp=%p)\n", scp); + scsi_done(scp); + return 0; +} + +static DEF_SCSI_QCMD(hptiop_queuecommand) + +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); + hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET); + } + + wait_event_timeout(hba->reset_wq, + atomic_read(&hba->resetting) == 0, 60 * HZ); + + if (atomic_read(&hba->resetting)) { + /* IOP is in unknown 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 hptiop_hba * hba = (struct hptiop_hba *)scp->device->host->hostdata; + + printk(KERN_WARNING "hptiop_reset(%d/%d/%d)\n", + scp->device->host->host_no, -1, -1); + + return hptiop_reset_hba(hba)? FAILED : SUCCESS; +} + +static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, + int queue_depth) +{ + struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata; + + if (queue_depth > hba->max_requests) + queue_depth = hba->max_requests; + return scsi_change_queue_depth(sdev, queue_depth); +} + +static ssize_t hptiop_show_version(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver); +} + +static ssize_t hptiop_show_fw_version(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; + + return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n", + hba->firmware_version >> 24, + (hba->firmware_version >> 16) & 0xff, + (hba->firmware_version >> 8) & 0xff, + hba->firmware_version & 0xff); +} + +static struct device_attribute hptiop_attr_version = { + .attr = { + .name = "driver-version", + .mode = S_IRUGO, + }, + .show = hptiop_show_version, +}; + +static struct device_attribute hptiop_attr_fw_version = { + .attr = { + .name = "firmware-version", + .mode = S_IRUGO, + }, + .show = hptiop_show_fw_version, +}; + +static struct attribute *hptiop_host_attrs[] = { + &hptiop_attr_version.attr, + &hptiop_attr_fw_version.attr, + NULL +}; + +ATTRIBUTE_GROUPS(hptiop_host); + +static int hptiop_slave_config(struct scsi_device *sdev) +{ + if (sdev->type == TYPE_TAPE) + blk_queue_max_hw_sectors(sdev->request_queue, 8192); + + return 0; +} + +static const struct scsi_host_template driver_template = { + .module = THIS_MODULE, + .name = driver_name, + .queuecommand = hptiop_queuecommand, + .eh_host_reset_handler = hptiop_reset, + .info = hptiop_info, + .emulated = 0, + .proc_name = driver_name, + .shost_groups = hptiop_host_groups, + .slave_configure = hptiop_slave_config, + .this_id = -1, + .change_queue_depth = hptiop_adjust_disk_queue_depth, + .cmd_size = sizeof(struct hpt_cmd_priv), +}; + +static int hptiop_internal_memalloc_itl(struct hptiop_hba *hba) +{ + return 0; +} + +static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba) +{ + hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev, + 0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL); + if (hba->u.mv.internal_req) + return 0; + else + return -1; +} + +static int hptiop_internal_memalloc_mvfrey(struct hptiop_hba *hba) +{ + u32 list_count = readl(&hba->u.mvfrey.mu->inbound_conf_ctl); + char *p; + dma_addr_t phy; + + BUG_ON(hba->max_request_size == 0); + + if (list_count == 0) { + BUG_ON(1); + return -1; + } + + list_count >>= 16; + + hba->u.mvfrey.list_count = list_count; + hba->u.mvfrey.internal_mem_size = 0x800 + + list_count * sizeof(struct mvfrey_inlist_entry) + + list_count * sizeof(struct mvfrey_outlist_entry) + + sizeof(int); + + p = dma_alloc_coherent(&hba->pcidev->dev, + hba->u.mvfrey.internal_mem_size, &phy, GFP_KERNEL); + if (!p) + return -1; + + hba->u.mvfrey.internal_req.req_virt = p; + hba->u.mvfrey.internal_req.req_shifted_phy = phy >> 5; + hba->u.mvfrey.internal_req.scp = NULL; + hba->u.mvfrey.internal_req.next = NULL; + + p += 0x800; + phy += 0x800; + + hba->u.mvfrey.inlist = (struct mvfrey_inlist_entry *)p; + hba->u.mvfrey.inlist_phy = phy; + + p += list_count * sizeof(struct mvfrey_inlist_entry); + phy += list_count * sizeof(struct mvfrey_inlist_entry); + + hba->u.mvfrey.outlist = (struct mvfrey_outlist_entry *)p; + hba->u.mvfrey.outlist_phy = phy; + + p += list_count * sizeof(struct mvfrey_outlist_entry); + phy += list_count * sizeof(struct mvfrey_outlist_entry); + + hba->u.mvfrey.outlist_cptr = (__le32 *)p; + hba->u.mvfrey.outlist_cptr_phy = phy; + + return 0; +} + +static int hptiop_internal_memfree_itl(struct hptiop_hba *hba) +{ + return 0; +} + +static int hptiop_internal_memfree_mv(struct hptiop_hba *hba) +{ + if (hba->u.mv.internal_req) { + dma_free_coherent(&hba->pcidev->dev, 0x800, + hba->u.mv.internal_req, hba->u.mv.internal_req_phy); + return 0; + } else + return -1; +} + +static int hptiop_internal_memfree_mvfrey(struct hptiop_hba *hba) +{ + if (hba->u.mvfrey.internal_req.req_virt) { + dma_free_coherent(&hba->pcidev->dev, + hba->u.mvfrey.internal_mem_size, + hba->u.mvfrey.internal_req.req_virt, + (dma_addr_t) + hba->u.mvfrey.internal_req.req_shifted_phy << 5); + return 0; + } else + return -1; +} + +static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id) +{ + struct Scsi_Host *host = NULL; + struct hptiop_hba *hba; + struct hptiop_adapter_ops *iop_ops; + struct hpt_iop_request_get_config iop_config; + struct hpt_iop_request_set_config set_config; + dma_addr_t start_phy; + void *start_virt; + u32 offset, i, req_size; + int rc; + + dprintk("hptiop_probe(%p)\n", pcidev); + + if (pci_enable_device(pcidev)) { + printk(KERN_ERR "hptiop: fail to enable pci device\n"); + return -ENODEV; + } + + printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n", + pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7, + pcidev->irq); + + pci_set_master(pcidev); + + /* Enable 64bit DMA if possible */ + iop_ops = (struct hptiop_adapter_ops *)id->driver_data; + rc = dma_set_mask(&pcidev->dev, + DMA_BIT_MASK(iop_ops->hw_dma_bit_mask)); + if (rc) + rc = dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32)); + + if (rc) { + printk(KERN_ERR "hptiop: fail to set dma_mask\n"); + goto disable_pci_device; + } + + if (pci_request_regions(pcidev, driver_name)) { + printk(KERN_ERR "hptiop: pci_request_regions failed\n"); + goto disable_pci_device; + } + + host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba)); + if (!host) { + printk(KERN_ERR "hptiop: fail to alloc scsi host\n"); + goto free_pci_regions; + } + + hba = (struct hptiop_hba *)host->hostdata; + memset(hba, 0, sizeof(struct hptiop_hba)); + + hba->ops = iop_ops; + hba->pcidev = pcidev; + hba->host = host; + hba->initialized = 0; + hba->iopintf_v2 = 0; + + atomic_set(&hba->resetting, 0); + atomic_set(&hba->reset_count, 0); + + init_waitqueue_head(&hba->reset_wq); + init_waitqueue_head(&hba->ioctl_wq); + + host->max_lun = 128; + host->max_channel = 0; + host->io_port = 0; + host->n_io_port = 0; + host->irq = pcidev->irq; + + if (hba->ops->map_pci_bar(hba)) + goto free_scsi_host; + + if (hba->ops->iop_wait_ready(hba, 20000)) { + printk(KERN_ERR "scsi%d: firmware not ready\n", + hba->host->host_no); + goto unmap_pci_bar; + } + + if (hba->ops->family == MV_BASED_IOP) { + if (hba->ops->internal_memalloc(hba)) { + printk(KERN_ERR "scsi%d: internal_memalloc failed\n", + hba->host->host_no); + goto unmap_pci_bar; + } + } + + if (hba->ops->get_config(hba, &iop_config)) { + printk(KERN_ERR "scsi%d: get config failed\n", + hba->host->host_no); + goto unmap_pci_bar; + } + + hba->max_requests = min(le32_to_cpu(iop_config.max_requests), + HPTIOP_MAX_REQUESTS); + hba->max_devices = le32_to_cpu(iop_config.max_devices); + hba->max_request_size = le32_to_cpu(iop_config.request_size); + hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count); + hba->firmware_version = le32_to_cpu(iop_config.firmware_version); + hba->interface_version = le32_to_cpu(iop_config.interface_version); + hba->sdram_size = le32_to_cpu(iop_config.sdram_size); + + if (hba->ops->family == MVFREY_BASED_IOP) { + if (hba->ops->internal_memalloc(hba)) { + printk(KERN_ERR "scsi%d: internal_memalloc failed\n", + hba->host->host_no); + goto unmap_pci_bar; + } + if (hba->ops->reset_comm(hba)) { + printk(KERN_ERR "scsi%d: reset comm failed\n", + hba->host->host_no); + goto unmap_pci_bar; + } + } + + if (hba->firmware_version > 0x01020000 || + hba->interface_version > 0x01020000) + hba->iopintf_v2 = 1; + + host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9; + host->max_id = le32_to_cpu(iop_config.max_devices); + host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count); + host->can_queue = le32_to_cpu(iop_config.max_requests); + host->cmd_per_lun = le32_to_cpu(iop_config.max_requests); + host->max_cmd_len = 16; + + req_size = struct_size_t(struct hpt_iop_request_scsi_command, + sg_list, hba->max_sg_descriptors); + if ((req_size & 0x1f) != 0) + req_size = (req_size + 0x1f) & ~0x1f; + + memset(&set_config, 0, sizeof(struct hpt_iop_request_set_config)); + set_config.iop_id = cpu_to_le32(host->host_no); + set_config.vbus_id = cpu_to_le16(host->host_no); + set_config.max_host_request_size = cpu_to_le16(req_size); + + if (hba->ops->set_config(hba, &set_config)) { + printk(KERN_ERR "scsi%d: set config failed\n", + hba->host->host_no); + goto unmap_pci_bar; + } + + pci_set_drvdata(pcidev, host); + + if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED, + driver_name, hba)) { + printk(KERN_ERR "scsi%d: request irq %d failed\n", + hba->host->host_no, pcidev->irq); + goto unmap_pci_bar; + } + + /* Allocate request mem */ + + dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests); + + hba->req_size = req_size; + hba->req_list = NULL; + + for (i = 0; i < hba->max_requests; i++) { + start_virt = dma_alloc_coherent(&pcidev->dev, + hba->req_size + 0x20, + &start_phy, GFP_KERNEL); + + if (!start_virt) { + printk(KERN_ERR "scsi%d: fail to alloc request mem\n", + hba->host->host_no); + goto free_request_mem; + } + + hba->dma_coherent[i] = start_virt; + hba->dma_coherent_handle[i] = start_phy; + + if ((start_phy & 0x1f) != 0) { + offset = ((start_phy + 0x1f) & ~0x1f) - start_phy; + start_phy += offset; + start_virt += offset; + } + + hba->reqs[i].next = NULL; + hba->reqs[i].req_virt = start_virt; + hba->reqs[i].req_shifted_phy = start_phy >> 5; + hba->reqs[i].index = i; + free_req(hba, &hba->reqs[i]); + } + + /* Enable Interrupt and start background task */ + if (hptiop_initialize_iop(hba)) + goto free_request_mem; + + if (scsi_add_host(host, &pcidev->dev)) { + printk(KERN_ERR "scsi%d: scsi_add_host failed\n", + hba->host->host_no); + goto free_request_mem; + } + + scsi_scan_host(host); + + dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no); + return 0; + +free_request_mem: + for (i = 0; i < hba->max_requests; i++) { + if (hba->dma_coherent[i] && hba->dma_coherent_handle[i]) + dma_free_coherent(&hba->pcidev->dev, + hba->req_size + 0x20, + hba->dma_coherent[i], + hba->dma_coherent_handle[i]); + else + break; + } + + free_irq(hba->pcidev->irq, hba); + +unmap_pci_bar: + hba->ops->internal_memfree(hba); + + hba->ops->unmap_pci_bar(hba); + +free_scsi_host: + scsi_host_put(host); + +free_pci_regions: + pci_release_regions(pcidev); + +disable_pci_device: + pci_disable_device(pcidev); + + dprintk("scsi%d: hptiop_probe fail\n", host ? host->host_no : 0); + return -ENODEV; +} + +static void hptiop_shutdown(struct pci_dev *pcidev) +{ + struct Scsi_Host *host = pci_get_drvdata(pcidev); + struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; + + dprintk("hptiop_shutdown(%p)\n", hba); + + /* stop the iop */ + if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000)) + printk(KERN_ERR "scsi%d: shutdown the iop timeout\n", + hba->host->host_no); + + /* disable all outbound interrupts */ + hba->ops->disable_intr(hba); +} + +static void hptiop_disable_intr_itl(struct hptiop_hba *hba) +{ + u32 int_mask; + + int_mask = readl(&hba->u.itl.iop->outbound_intmask); + writel(int_mask | + IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE, + &hba->u.itl.iop->outbound_intmask); + readl(&hba->u.itl.iop->outbound_intmask); +} + +static void hptiop_disable_intr_mv(struct hptiop_hba *hba) +{ + writel(0, &hba->u.mv.regs->outbound_intmask); + readl(&hba->u.mv.regs->outbound_intmask); +} + +static void hptiop_disable_intr_mvfrey(struct hptiop_hba *hba) +{ + writel(0, &(hba->u.mvfrey.mu->f0_doorbell_enable)); + readl(&(hba->u.mvfrey.mu->f0_doorbell_enable)); + writel(0, &(hba->u.mvfrey.mu->isr_enable)); + readl(&(hba->u.mvfrey.mu->isr_enable)); + writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable)); + readl(&(hba->u.mvfrey.mu->pcie_f0_int_enable)); +} + +static void hptiop_remove(struct pci_dev *pcidev) +{ + struct Scsi_Host *host = pci_get_drvdata(pcidev); + struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; + u32 i; + + dprintk("scsi%d: hptiop_remove\n", hba->host->host_no); + + scsi_remove_host(host); + + hptiop_shutdown(pcidev); + + free_irq(hba->pcidev->irq, hba); + + for (i = 0; i < hba->max_requests; i++) { + if (hba->dma_coherent[i] && hba->dma_coherent_handle[i]) + dma_free_coherent(&hba->pcidev->dev, + hba->req_size + 0x20, + hba->dma_coherent[i], + hba->dma_coherent_handle[i]); + else + break; + } + + hba->ops->internal_memfree(hba); + + hba->ops->unmap_pci_bar(hba); + + pci_release_regions(hba->pcidev); + pci_set_drvdata(hba->pcidev, NULL); + pci_disable_device(hba->pcidev); + + scsi_host_put(host); +} + +static struct hptiop_adapter_ops hptiop_itl_ops = { + .family = INTEL_BASED_IOP, + .iop_wait_ready = iop_wait_ready_itl, + .internal_memalloc = hptiop_internal_memalloc_itl, + .internal_memfree = hptiop_internal_memfree_itl, + .map_pci_bar = hptiop_map_pci_bar_itl, + .unmap_pci_bar = hptiop_unmap_pci_bar_itl, + .enable_intr = hptiop_enable_intr_itl, + .disable_intr = hptiop_disable_intr_itl, + .get_config = iop_get_config_itl, + .set_config = iop_set_config_itl, + .iop_intr = iop_intr_itl, + .post_msg = hptiop_post_msg_itl, + .post_req = hptiop_post_req_itl, + .hw_dma_bit_mask = 64, + .reset_comm = hptiop_reset_comm_itl, + .host_phy_flag = cpu_to_le64(0), +}; + +static struct hptiop_adapter_ops hptiop_mv_ops = { + .family = MV_BASED_IOP, + .iop_wait_ready = iop_wait_ready_mv, + .internal_memalloc = hptiop_internal_memalloc_mv, + .internal_memfree = hptiop_internal_memfree_mv, + .map_pci_bar = hptiop_map_pci_bar_mv, + .unmap_pci_bar = hptiop_unmap_pci_bar_mv, + .enable_intr = hptiop_enable_intr_mv, + .disable_intr = hptiop_disable_intr_mv, + .get_config = iop_get_config_mv, + .set_config = iop_set_config_mv, + .iop_intr = iop_intr_mv, + .post_msg = hptiop_post_msg_mv, + .post_req = hptiop_post_req_mv, + .hw_dma_bit_mask = 33, + .reset_comm = hptiop_reset_comm_mv, + .host_phy_flag = cpu_to_le64(0), +}; + +static struct hptiop_adapter_ops hptiop_mvfrey_ops = { + .family = MVFREY_BASED_IOP, + .iop_wait_ready = iop_wait_ready_mvfrey, + .internal_memalloc = hptiop_internal_memalloc_mvfrey, + .internal_memfree = hptiop_internal_memfree_mvfrey, + .map_pci_bar = hptiop_map_pci_bar_mvfrey, + .unmap_pci_bar = hptiop_unmap_pci_bar_mvfrey, + .enable_intr = hptiop_enable_intr_mvfrey, + .disable_intr = hptiop_disable_intr_mvfrey, + .get_config = iop_get_config_mvfrey, + .set_config = iop_set_config_mvfrey, + .iop_intr = iop_intr_mvfrey, + .post_msg = hptiop_post_msg_mvfrey, + .post_req = hptiop_post_req_mvfrey, + .hw_dma_bit_mask = 64, + .reset_comm = hptiop_reset_comm_mvfrey, + .host_phy_flag = cpu_to_le64(1), +}; + +static struct pci_device_id hptiop_id_table[] = { + { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops }, + { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops }, + { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops }, + { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops }, + { PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3610), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3611), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3620), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3622), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3640), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3660), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3680), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3690), (kernel_ulong_t)&hptiop_mvfrey_ops }, + {}, +}; + +MODULE_DEVICE_TABLE(pci, hptiop_id_table); + +static struct pci_driver hptiop_pci_driver = { + .name = driver_name, + .id_table = hptiop_id_table, + .probe = hptiop_probe, + .remove = hptiop_remove, + .shutdown = hptiop_shutdown, +}; + +static int __init hptiop_module_init(void) +{ + printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver); + return pci_register_driver(&hptiop_pci_driver); +} + +static void __exit hptiop_module_exit(void) +{ + pci_unregister_driver(&hptiop_pci_driver); +} + + +module_init(hptiop_module_init); +module_exit(hptiop_module_exit); + +MODULE_LICENSE("GPL"); + |