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linux/linux-5.4.31/drivers/scsi/hptiop.c

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2024-01-30 10:43:28 +00:00
// 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;
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);
}
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,
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->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(
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 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 device_attribute *hptiop_attrs[] = {
&hptiop_attr_version,
&hptiop_attr_fw_version,
NULL
};
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 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_attrs = hptiop_attrs,
.slave_configure = hptiop_slave_config,
.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;
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 = 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;
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");