mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 11:16:41 +07:00
3e74051bc7
The hptiop just got merged with a horrible amount of really bad ioctl code that is against the standards for new scsi drivers. This patch backs it out (and fixes a small bug where scsi_add_host is called to early). We can re-add proper APIs once we agree on them. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
944 lines
24 KiB
C
944 lines
24 KiB
C
/*
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* HighPoint RR3xxx controller driver for Linux
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* Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Please report bugs/comments/suggestions to linux@highpoint-tech.com
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*
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* For more information, visit http://www.highpoint-tech.com
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*/
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/interrupt.h>
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#include <linux/errno.h>
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#include <linux/delay.h>
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#include <linux/timer.h>
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#include <linux/spinlock.h>
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#include <linux/hdreg.h>
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#include <asm/uaccess.h>
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#include <asm/io.h>
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#include <asm/div64.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_tcq.h>
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#include <scsi/scsi_host.h>
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#include "hptiop.h"
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MODULE_AUTHOR("HighPoint Technologies, Inc.");
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MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx SATA Controller Driver");
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static char driver_name[] = "hptiop";
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static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver";
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static const char driver_ver[] = "v1.0 (060426)";
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static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag);
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static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag);
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static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
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static inline void hptiop_pci_posting_flush(struct hpt_iopmu __iomem *iop)
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{
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readl(&iop->outbound_intstatus);
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}
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static int iop_wait_ready(struct hpt_iopmu __iomem *iop, u32 millisec)
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{
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u32 req = 0;
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int i;
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for (i = 0; i < millisec; i++) {
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req = readl(&iop->inbound_queue);
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if (req != IOPMU_QUEUE_EMPTY)
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break;
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msleep(1);
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}
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if (req != IOPMU_QUEUE_EMPTY) {
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writel(req, &iop->outbound_queue);
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hptiop_pci_posting_flush(iop);
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return 0;
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}
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return -1;
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}
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static void hptiop_request_callback(struct hptiop_hba *hba, u32 tag)
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{
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if ((tag & IOPMU_QUEUE_MASK_HOST_BITS) == IOPMU_QUEUE_ADDR_HOST_BIT)
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return hptiop_host_request_callback(hba,
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tag & ~IOPMU_QUEUE_ADDR_HOST_BIT);
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else
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return hptiop_iop_request_callback(hba, tag);
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}
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static inline void hptiop_drain_outbound_queue(struct hptiop_hba *hba)
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{
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u32 req;
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while ((req = readl(&hba->iop->outbound_queue)) != IOPMU_QUEUE_EMPTY) {
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if (req & IOPMU_QUEUE_MASK_HOST_BITS)
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hptiop_request_callback(hba, req);
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else {
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struct hpt_iop_request_header __iomem * p;
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p = (struct hpt_iop_request_header __iomem *)
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((char __iomem *)hba->iop + req);
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if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) {
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if (readl(&p->context))
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hptiop_request_callback(hba, req);
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else
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writel(1, &p->context);
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}
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else
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hptiop_request_callback(hba, req);
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}
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}
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}
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static int __iop_intr(struct hptiop_hba *hba)
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{
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struct hpt_iopmu __iomem *iop = hba->iop;
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u32 status;
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int ret = 0;
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status = readl(&iop->outbound_intstatus);
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if (status & IOPMU_OUTBOUND_INT_MSG0) {
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u32 msg = readl(&iop->outbound_msgaddr0);
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dprintk("received outbound msg %x\n", msg);
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writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus);
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hptiop_message_callback(hba, msg);
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ret = 1;
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}
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if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) {
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hptiop_drain_outbound_queue(hba);
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ret = 1;
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}
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return ret;
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}
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static int iop_send_sync_request(struct hptiop_hba *hba,
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void __iomem *_req, u32 millisec)
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{
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struct hpt_iop_request_header __iomem *req = _req;
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u32 i;
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writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST,
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&req->flags);
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writel(0, &req->context);
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writel((unsigned long)req - (unsigned long)hba->iop,
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&hba->iop->inbound_queue);
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hptiop_pci_posting_flush(hba->iop);
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for (i = 0; i < millisec; i++) {
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__iop_intr(hba);
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if (readl(&req->context))
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return 0;
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msleep(1);
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}
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return -1;
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}
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static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec)
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{
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u32 i;
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hba->msg_done = 0;
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writel(msg, &hba->iop->inbound_msgaddr0);
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hptiop_pci_posting_flush(hba->iop);
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for (i = 0; i < millisec; i++) {
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spin_lock_irq(hba->host->host_lock);
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__iop_intr(hba);
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spin_unlock_irq(hba->host->host_lock);
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if (hba->msg_done)
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break;
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msleep(1);
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}
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return hba->msg_done? 0 : -1;
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}
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static int iop_get_config(struct hptiop_hba *hba,
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struct hpt_iop_request_get_config *config)
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{
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u32 req32;
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struct hpt_iop_request_get_config __iomem *req;
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req32 = readl(&hba->iop->inbound_queue);
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if (req32 == IOPMU_QUEUE_EMPTY)
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return -1;
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req = (struct hpt_iop_request_get_config __iomem *)
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((unsigned long)hba->iop + req32);
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writel(0, &req->header.flags);
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writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type);
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writel(sizeof(struct hpt_iop_request_get_config), &req->header.size);
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writel(IOP_RESULT_PENDING, &req->header.result);
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if (iop_send_sync_request(hba, req, 20000)) {
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dprintk("Get config send cmd failed\n");
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return -1;
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}
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memcpy_fromio(config, req, sizeof(*config));
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writel(req32, &hba->iop->outbound_queue);
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return 0;
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}
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static int iop_set_config(struct hptiop_hba *hba,
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struct hpt_iop_request_set_config *config)
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{
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u32 req32;
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struct hpt_iop_request_set_config __iomem *req;
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req32 = readl(&hba->iop->inbound_queue);
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if (req32 == IOPMU_QUEUE_EMPTY)
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return -1;
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req = (struct hpt_iop_request_set_config __iomem *)
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((unsigned long)hba->iop + req32);
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memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header),
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(u8 *)config + sizeof(struct hpt_iop_request_header),
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sizeof(struct hpt_iop_request_set_config) -
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sizeof(struct hpt_iop_request_header));
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writel(0, &req->header.flags);
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writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type);
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writel(sizeof(struct hpt_iop_request_set_config), &req->header.size);
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writel(IOP_RESULT_PENDING, &req->header.result);
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if (iop_send_sync_request(hba, req, 20000)) {
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dprintk("Set config send cmd failed\n");
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return -1;
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}
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writel(req32, &hba->iop->outbound_queue);
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return 0;
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}
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static int hptiop_initialize_iop(struct hptiop_hba *hba)
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{
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struct hpt_iopmu __iomem *iop = hba->iop;
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/* enable interrupts */
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writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0),
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&iop->outbound_intmask);
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hba->initialized = 1;
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/* start background tasks */
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if (iop_send_sync_msg(hba,
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IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
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printk(KERN_ERR "scsi%d: fail to start background task\n",
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hba->host->host_no);
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return -1;
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}
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return 0;
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}
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static int hptiop_map_pci_bar(struct hptiop_hba *hba)
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{
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u32 mem_base_phy, length;
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void __iomem *mem_base_virt;
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struct pci_dev *pcidev = hba->pcidev;
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if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_MEM)) {
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printk(KERN_ERR "scsi%d: pci resource invalid\n",
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hba->host->host_no);
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return -1;
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}
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mem_base_phy = pci_resource_start(pcidev, 0);
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length = pci_resource_len(pcidev, 0);
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mem_base_virt = ioremap(mem_base_phy, length);
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if (!mem_base_virt) {
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printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n",
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hba->host->host_no);
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return -1;
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}
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hba->iop = mem_base_virt;
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dprintk("hptiop_map_pci_bar: iop=%p\n", hba->iop);
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return 0;
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}
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static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg)
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{
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dprintk("iop message 0x%x\n", msg);
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if (!hba->initialized)
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return;
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if (msg == IOPMU_INBOUND_MSG0_RESET) {
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atomic_set(&hba->resetting, 0);
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wake_up(&hba->reset_wq);
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}
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else if (msg <= IOPMU_INBOUND_MSG0_MAX)
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hba->msg_done = 1;
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}
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static inline struct hptiop_request *get_req(struct hptiop_hba *hba)
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{
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struct hptiop_request *ret;
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dprintk("get_req : req=%p\n", hba->req_list);
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ret = hba->req_list;
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if (ret)
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hba->req_list = ret->next;
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return ret;
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}
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static inline void free_req(struct hptiop_hba *hba, struct hptiop_request *req)
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{
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dprintk("free_req(%d, %p)\n", req->index, req);
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req->next = hba->req_list;
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hba->req_list = req;
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}
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static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag)
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{
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struct hpt_iop_request_scsi_command *req;
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struct scsi_cmnd *scp;
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req = (struct hpt_iop_request_scsi_command *)hba->reqs[tag].req_virt;
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dprintk("hptiop_host_request_callback: req=%p, type=%d, "
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"result=%d, context=0x%x tag=%d\n",
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req, req->header.type, req->header.result,
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req->header.context, tag);
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BUG_ON(!req->header.result);
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BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND));
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scp = hba->reqs[tag].scp;
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if (HPT_SCP(scp)->mapped) {
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if (scp->use_sg)
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pci_unmap_sg(hba->pcidev,
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(struct scatterlist *)scp->request_buffer,
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scp->use_sg,
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scp->sc_data_direction
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);
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else
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pci_unmap_single(hba->pcidev,
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HPT_SCP(scp)->dma_handle,
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scp->request_bufflen,
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scp->sc_data_direction
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);
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}
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switch (le32_to_cpu(req->header.result)) {
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case IOP_RESULT_SUCCESS:
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scp->result = (DID_OK<<16);
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break;
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case IOP_RESULT_BAD_TARGET:
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scp->result = (DID_BAD_TARGET<<16);
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break;
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case IOP_RESULT_BUSY:
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scp->result = (DID_BUS_BUSY<<16);
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break;
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case IOP_RESULT_RESET:
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scp->result = (DID_RESET<<16);
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break;
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case IOP_RESULT_FAIL:
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scp->result = (DID_ERROR<<16);
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break;
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case IOP_RESULT_INVALID_REQUEST:
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scp->result = (DID_ABORT<<16);
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break;
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case IOP_RESULT_MODE_SENSE_CHECK_CONDITION:
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scp->result = SAM_STAT_CHECK_CONDITION;
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memset(&scp->sense_buffer,
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0, sizeof(scp->sense_buffer));
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memcpy(&scp->sense_buffer,
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&req->sg_list, le32_to_cpu(req->dataxfer_length));
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break;
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default:
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scp->result = ((DRIVER_INVALID|SUGGEST_ABORT)<<24) |
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(DID_ABORT<<16);
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break;
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}
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dprintk("scsi_done(%p)\n", scp);
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scp->scsi_done(scp);
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free_req(hba, &hba->reqs[tag]);
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}
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void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag)
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{
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struct hpt_iop_request_header __iomem *req;
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struct hpt_iop_request_ioctl_command __iomem *p;
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struct hpt_ioctl_k *arg;
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req = (struct hpt_iop_request_header __iomem *)
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((unsigned long)hba->iop + tag);
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dprintk("hptiop_iop_request_callback: req=%p, type=%d, "
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"result=%d, context=0x%x tag=%d\n",
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req, readl(&req->type), readl(&req->result),
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readl(&req->context), tag);
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BUG_ON(!readl(&req->result));
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BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND);
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p = (struct hpt_iop_request_ioctl_command __iomem *)req;
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arg = (struct hpt_ioctl_k *)(unsigned long)
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(readl(&req->context) |
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((u64)readl(&req->context_hi32)<<32));
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if (readl(&req->result) == IOP_RESULT_SUCCESS) {
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arg->result = HPT_IOCTL_RESULT_OK;
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if (arg->outbuf_size)
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memcpy_fromio(arg->outbuf,
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&p->buf[(readl(&p->inbuf_size) + 3)& ~3],
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arg->outbuf_size);
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if (arg->bytes_returned)
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*arg->bytes_returned = arg->outbuf_size;
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}
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else
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arg->result = HPT_IOCTL_RESULT_FAILED;
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arg->done(arg);
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writel(tag, &hba->iop->outbound_queue);
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}
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static irqreturn_t hptiop_intr(int irq, void *dev_id, struct pt_regs *regs)
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{
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struct hptiop_hba *hba = dev_id;
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int handled;
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unsigned long flags;
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spin_lock_irqsave(hba->host->host_lock, flags);
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handled = __iop_intr(hba);
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spin_unlock_irqrestore(hba->host->host_lock, flags);
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return handled;
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}
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static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg)
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{
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struct Scsi_Host *host = scp->device->host;
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struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
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struct scatterlist *sglist = (struct scatterlist *)scp->request_buffer;
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/*
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* though we'll not get non-use_sg fields anymore,
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* keep use_sg checking anyway
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*/
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if (scp->use_sg) {
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int idx;
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HPT_SCP(scp)->sgcnt = pci_map_sg(hba->pcidev,
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sglist, scp->use_sg,
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scp->sc_data_direction);
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HPT_SCP(scp)->mapped = 1;
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BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors);
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for (idx = 0; idx < HPT_SCP(scp)->sgcnt; idx++) {
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psg[idx].pci_address =
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cpu_to_le64(sg_dma_address(&sglist[idx]));
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psg[idx].size = cpu_to_le32(sg_dma_len(&sglist[idx]));
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psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ?
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cpu_to_le32(1) : 0;
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}
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return HPT_SCP(scp)->sgcnt;
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} else {
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HPT_SCP(scp)->dma_handle = pci_map_single(
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hba->pcidev,
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|
scp->request_buffer,
|
|
scp->request_bufflen,
|
|
scp->sc_data_direction
|
|
);
|
|
HPT_SCP(scp)->mapped = 1;
|
|
psg->pci_address = cpu_to_le64(HPT_SCP(scp)->dma_handle);
|
|
psg->size = cpu_to_le32(scp->request_bufflen);
|
|
psg->eot = cpu_to_le32(1);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
static int hptiop_queuecommand(struct scsi_cmnd *scp,
|
|
void (*done)(struct scsi_cmnd *))
|
|
{
|
|
struct Scsi_Host *host = scp->device->host;
|
|
struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
|
|
struct hpt_iop_request_scsi_command *req;
|
|
int sg_count = 0;
|
|
struct hptiop_request *_req;
|
|
|
|
BUG_ON(!done);
|
|
scp->scsi_done = done;
|
|
|
|
_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/%d cdb=(%x-%x-%x) "
|
|
"req_index=%d, req=%p\n",
|
|
scp,
|
|
host->host_no, scp->device->channel,
|
|
scp->device->id, scp->device->lun,
|
|
*((u32 *)&scp->cmnd),
|
|
*((u32 *)&scp->cmnd + 1),
|
|
*((u32 *)&scp->cmnd + 2),
|
|
_req->index, _req->req_virt);
|
|
|
|
scp->result = 0;
|
|
|
|
if (scp->device->channel || scp->device->lun ||
|
|
scp->device->id > hba->max_devices) {
|
|
scp->result = DID_BAD_TARGET << 16;
|
|
free_req(hba, _req);
|
|
goto cmd_done;
|
|
}
|
|
|
|
req = (struct hpt_iop_request_scsi_command *)_req->req_virt;
|
|
|
|
/* build S/G table */
|
|
if (scp->request_bufflen)
|
|
sg_count = hptiop_buildsgl(scp, req->sg_list);
|
|
else
|
|
HPT_SCP(scp)->mapped = 0;
|
|
|
|
req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
|
|
req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND);
|
|
req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
|
|
req->header.context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
|
|
(u32)_req->index);
|
|
req->header.context_hi32 = 0;
|
|
req->dataxfer_length = cpu_to_le32(scp->request_bufflen);
|
|
req->channel = scp->device->channel;
|
|
req->target = scp->device->id;
|
|
req->lun = scp->device->lun;
|
|
req->header.size = cpu_to_le32(
|
|
sizeof(struct hpt_iop_request_scsi_command)
|
|
- sizeof(struct hpt_iopsg)
|
|
+ sg_count * sizeof(struct hpt_iopsg));
|
|
|
|
memcpy(req->cdb, scp->cmnd, sizeof(req->cdb));
|
|
|
|
writel(IOPMU_QUEUE_ADDR_HOST_BIT | _req->req_shifted_phy,
|
|
&hba->iop->inbound_queue);
|
|
|
|
return 0;
|
|
|
|
cmd_done:
|
|
dprintk("scsi_done(scp=%p)\n", scp);
|
|
scp->scsi_done(scp);
|
|
return 0;
|
|
}
|
|
|
|
static const char *hptiop_info(struct Scsi_Host *host)
|
|
{
|
|
return driver_name_long;
|
|
}
|
|
|
|
static int hptiop_reset_hba(struct hptiop_hba *hba)
|
|
{
|
|
if (atomic_xchg(&hba->resetting, 1) == 0) {
|
|
atomic_inc(&hba->reset_count);
|
|
writel(IOPMU_INBOUND_MSG0_RESET,
|
|
&hba->iop->inbound_msgaddr0);
|
|
hptiop_pci_posting_flush(hba->iop);
|
|
}
|
|
|
|
wait_event_timeout(hba->reset_wq,
|
|
atomic_read(&hba->resetting) == 0, 60 * HZ);
|
|
|
|
if (atomic_read(&hba->resetting)) {
|
|
/* IOP is in unkown state, abort reset */
|
|
printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no);
|
|
return -1;
|
|
}
|
|
|
|
if (iop_send_sync_msg(hba,
|
|
IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
|
|
dprintk("scsi%d: fail to start background task\n",
|
|
hba->host->host_no);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hptiop_reset(struct scsi_cmnd *scp)
|
|
{
|
|
struct Scsi_Host * host = scp->device->host;
|
|
struct hptiop_hba * hba = (struct hptiop_hba *)host->hostdata;
|
|
|
|
printk(KERN_WARNING "hptiop_reset(%d/%d/%d) scp=%p\n",
|
|
scp->device->host->host_no, scp->device->channel,
|
|
scp->device->id, scp);
|
|
|
|
return hptiop_reset_hba(hba)? FAILED : SUCCESS;
|
|
}
|
|
|
|
static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
|
|
int queue_depth)
|
|
{
|
|
if(queue_depth > 256)
|
|
queue_depth = 256;
|
|
scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
|
|
return queue_depth;
|
|
}
|
|
|
|
static ssize_t hptiop_show_version(struct class_device *class_dev, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
|
|
}
|
|
|
|
static ssize_t hptiop_show_fw_version(struct class_device *class_dev, char *buf)
|
|
{
|
|
struct Scsi_Host *host = class_to_shost(class_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 class_device_attribute hptiop_attr_version = {
|
|
.attr = {
|
|
.name = "driver-version",
|
|
.mode = S_IRUGO,
|
|
},
|
|
.show = hptiop_show_version,
|
|
};
|
|
|
|
static struct class_device_attribute hptiop_attr_fw_version = {
|
|
.attr = {
|
|
.name = "firmware-version",
|
|
.mode = S_IRUGO,
|
|
},
|
|
.show = hptiop_show_fw_version,
|
|
};
|
|
|
|
static struct class_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,
|
|
.unchecked_isa_dma = 0,
|
|
.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 __devinit hptiop_probe(struct pci_dev *pcidev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
struct Scsi_Host *host = NULL;
|
|
struct hptiop_hba *hba;
|
|
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 */
|
|
if (pci_set_dma_mask(pcidev, DMA_64BIT_MASK)) {
|
|
if (pci_set_dma_mask(pcidev, DMA_32BIT_MASK)) {
|
|
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->pcidev = pcidev;
|
|
hba->host = host;
|
|
hba->initialized = 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 (hptiop_map_pci_bar(hba))
|
|
goto free_scsi_host;
|
|
|
|
if (iop_wait_ready(hba->iop, 20000)) {
|
|
printk(KERN_ERR "scsi%d: firmware not ready\n",
|
|
hba->host->host_no);
|
|
goto unmap_pci_bar;
|
|
}
|
|
|
|
if (iop_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->sdram_size = le32_to_cpu(iop_config.sdram_size);
|
|
|
|
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;
|
|
|
|
set_config.vbus_id = cpu_to_le32(host->host_no);
|
|
set_config.iop_id = cpu_to_le32(host->host_no);
|
|
|
|
if (iop_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 */
|
|
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;
|
|
|
|
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 = start_virt;
|
|
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:
|
|
iounmap(hba->iop);
|
|
|
|
free_pci_regions:
|
|
pci_release_regions(pcidev) ;
|
|
|
|
free_scsi_host:
|
|
scsi_host_put(host);
|
|
|
|
disable_pci_device:
|
|
pci_disable_device(pcidev);
|
|
|
|
dprintk("scsi%d: hptiop_probe fail\n", host->host_no);
|
|
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;
|
|
struct hpt_iopmu __iomem *iop = hba->iop;
|
|
u32 int_mask;
|
|
|
|
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 */
|
|
int_mask = readl(&iop->outbound_intmask);
|
|
writel(int_mask |
|
|
IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE,
|
|
&iop->outbound_intmask);
|
|
hptiop_pci_posting_flush(iop);
|
|
}
|
|
|
|
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);
|
|
|
|
iounmap(hba->iop);
|
|
|
|
pci_release_regions(hba->pcidev);
|
|
pci_set_drvdata(hba->pcidev, NULL);
|
|
pci_disable_device(hba->pcidev);
|
|
|
|
scsi_host_put(host);
|
|
}
|
|
|
|
static struct pci_device_id hptiop_id_table[] = {
|
|
{ PCI_DEVICE(0x1103, 0x3220) },
|
|
{ PCI_DEVICE(0x1103, 0x3320) },
|
|
{},
|
|
};
|
|
|
|
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");
|