--- /dev/null
+/*
+ * HighPoint RR3xxx/4xxx controller driver for Linux
+ * Copyright (C) 2006-2012 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/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 <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/4xxx Controller Driver");
+
+static char driver_name[] = "hptiop";
+static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
+static const char driver_ver[] = "v1.8";
+
+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,
+ min_t(size_t, SCSI_SENSE_BUFFERSIZE,
+ le32_to_cpu(req->dataxfer_length)));
+ goto skip_resid;
+ break;
+
+ default:
+ scp->result = DRIVER_INVALID << 24 | 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);
+ 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);
+}
+
+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,
+ 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;
+
+ _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->lun ||
+ scp->device->id > hba->max_devices) {
+ 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(
+ 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));
+ hba->ops->post_req(hba, _req);
+ return 0;
+
+cmd_done:
+ dprintk("scsi_done(scp=%p)\n", scp);
+ 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 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)
+{
+ 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 device_attribute *hptiop_attrs[] = {
+ &hptiop_attr_version,
+ &hptiop_attr_fw_version,
+ NULL
+};
+
+static struct scsi_host_template driver_template = {
+ .module = THIS_MODULE,
+ .name = driver_name,
+ .queuecommand = hptiop_queuecommand,
+ .eh_device_reset_handler = hptiop_reset,
+ .eh_bus_reset_handler = hptiop_reset,
+ .info = hptiop_info,
+ .emulated = 0,
+ .use_clustering = ENABLE_CLUSTERING,
+ .proc_name = driver_name,
+ .shost_attrs = hptiop_attrs,
+ .this_id = -1,
+ .change_queue_depth = hptiop_adjust_disk_queue_depth,
+};
+
+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;
+
+ 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;
+ if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(iop_ops->hw_dma_bit_mask))) {
+ if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(32))) {
+ 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;
+
+ 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 = 1;
+ 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 = sizeof(struct hpt_iop_request_scsi_command)
+ + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1);
+ 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;
+ start_virt = dma_alloc_coherent(&pcidev->dev,
+ hba->req_size*hba->max_requests + 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_irq;
+ }
+
+ hba->dma_coherent = start_virt;
+ hba->dma_coherent_handle = start_phy;
+
+ if ((start_phy & 0x1f) != 0) {
+ offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
+ start_phy += offset;
+ start_virt += offset;
+ }
+
+ hba->req_list = NULL;
+ for (i = 0; i < hba->max_requests; i++) {
+ 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]);
+ start_virt = (char *)start_virt + hba->req_size;
+ start_phy = start_phy + hba->req_size;
+ }
+
+ /* 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:
+ dma_free_coherent(&hba->pcidev->dev,
+ hba->req_size * hba->max_requests + 0x20,
+ hba->dma_coherent, hba->dma_coherent_handle);
+
+free_request_irq:
+ 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;
+
+ dprintk("scsi%d: hptiop_remove\n", hba->host->host_no);
+
+ scsi_remove_host(host);
+
+ hptiop_shutdown(pcidev);
+
+ free_irq(hba->pcidev->irq, hba);
+
+ dma_free_coherent(&hba->pcidev->dev,
+ hba->req_size * hba->max_requests + 0x20,
+ hba->dma_coherent,
+ hba->dma_coherent_handle);
+
+ 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 },
+ {},
+};
+
+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");
+
Code Review / kvmfornfv.git / blobdiff