/*
* SuperTrak EX Series Storage Controller driver for Linux
*
- * Copyright (C) 2005, 2006 Promise Technology Inc.
+ * Copyright (C) 2005-2009 Promise Technology Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/delay.h>
+#include <linux/slab.h>
#include <linux/time.h>
#include <linux/pci.h>
#include <linux/blkdev.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_dbg.h>
+#include <scsi/scsi_eh.h>
#define DRV_NAME "stex"
-#define ST_DRIVER_VERSION "3.6.0000.1"
-#define ST_VER_MAJOR 3
-#define ST_VER_MINOR 6
-#define ST_OEM 0
-#define ST_BUILD_VER 1
+#define ST_DRIVER_VERSION "4.6.0000.4"
+#define ST_VER_MAJOR 4
+#define ST_VER_MINOR 6
+#define ST_OEM 0
+#define ST_BUILD_VER 4
enum {
/* MU register offset */
OIS = 0x30, /* MU_OUTBOUND_INTERRUPT_STATUS */
OIM = 0x3c, /* MU_OUTBOUND_INTERRUPT_MASK */
+ YIOA_STATUS = 0x00,
+ YH2I_INT = 0x20,
+ YINT_EN = 0x34,
+ YI2H_INT = 0x9c,
+ YI2H_INT_C = 0xa0,
+ YH2I_REQ = 0xc0,
+ YH2I_REQ_HI = 0xc4,
+
/* MU register value */
- MU_INBOUND_DOORBELL_HANDSHAKE = 1,
- MU_INBOUND_DOORBELL_REQHEADCHANGED = 2,
- MU_INBOUND_DOORBELL_STATUSTAILCHANGED = 4,
- MU_INBOUND_DOORBELL_HMUSTOPPED = 8,
- MU_INBOUND_DOORBELL_RESET = 16,
-
- MU_OUTBOUND_DOORBELL_HANDSHAKE = 1,
- MU_OUTBOUND_DOORBELL_REQUESTTAILCHANGED = 2,
- MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED = 4,
- MU_OUTBOUND_DOORBELL_BUSCHANGE = 8,
- MU_OUTBOUND_DOORBELL_HASEVENT = 16,
+ MU_INBOUND_DOORBELL_HANDSHAKE = (1 << 0),
+ MU_INBOUND_DOORBELL_REQHEADCHANGED = (1 << 1),
+ MU_INBOUND_DOORBELL_STATUSTAILCHANGED = (1 << 2),
+ MU_INBOUND_DOORBELL_HMUSTOPPED = (1 << 3),
+ MU_INBOUND_DOORBELL_RESET = (1 << 4),
+
+ MU_OUTBOUND_DOORBELL_HANDSHAKE = (1 << 0),
+ MU_OUTBOUND_DOORBELL_REQUESTTAILCHANGED = (1 << 1),
+ MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED = (1 << 2),
+ MU_OUTBOUND_DOORBELL_BUSCHANGE = (1 << 3),
+ MU_OUTBOUND_DOORBELL_HASEVENT = (1 << 4),
+ MU_OUTBOUND_DOORBELL_REQUEST_RESET = (1 << 27),
/* MU status code */
MU_STATE_STARTING = 1,
- MU_STATE_FMU_READY_FOR_HANDSHAKE = 2,
- MU_STATE_SEND_HANDSHAKE_FRAME = 3,
- MU_STATE_STARTED = 4,
- MU_STATE_RESETTING = 5,
+ MU_STATE_STARTED = 2,
+ MU_STATE_RESETTING = 3,
+ MU_STATE_FAILED = 4,
MU_MAX_DELAY = 120,
MU_HANDSHAKE_SIGNATURE = 0x55aaaa55,
TASK_ATTRIBUTE_ORDERED = 0x2,
TASK_ATTRIBUTE_ACA = 0x4,
- /* request count, etc. */
- MU_MAX_REQUEST = 32,
+ SS_STS_NORMAL = 0x80000000,
+ SS_STS_DONE = 0x40000000,
+ SS_STS_HANDSHAKE = 0x20000000,
+
+ SS_HEAD_HANDSHAKE = 0x80,
+
+ SS_H2I_INT_RESET = 0x100,
+
+ SS_I2H_REQUEST_RESET = 0x2000,
- /* one message wasted, use MU_MAX_REQUEST+1
- to handle MU_MAX_REQUEST messages */
- MU_REQ_COUNT = (MU_MAX_REQUEST + 1),
- MU_STATUS_COUNT = (MU_MAX_REQUEST + 1),
+ SS_MU_OPERATIONAL = 0x80000000,
- STEX_CDB_LENGTH = MAX_COMMAND_SIZE,
- REQ_VARIABLE_LEN = 1024,
+ STEX_CDB_LENGTH = 16,
STATUS_VAR_LEN = 128,
- ST_CAN_QUEUE = MU_MAX_REQUEST,
- ST_CMD_PER_LUN = MU_MAX_REQUEST,
- ST_MAX_SG = 32,
/* sg flags */
SG_CF_EOT = 0x80, /* end of table */
SG_CF_64B = 0x40, /* 64 bit item */
SG_CF_HOST = 0x20, /* sg in host memory */
+ MSG_DATA_DIR_ND = 0,
+ MSG_DATA_DIR_IN = 1,
+ MSG_DATA_DIR_OUT = 2,
st_shasta = 0,
st_vsc = 1,
- st_vsc1 = 2,
- st_yosemite = 3,
+ st_yosemite = 2,
+ st_seq = 3,
+ st_yel = 4,
PASSTHRU_REQ_TYPE = 0x00000001,
PASSTHRU_REQ_NO_WAKEUP = 0x00000100,
- ST_INTERNAL_TIMEOUT = 30,
+ ST_INTERNAL_TIMEOUT = 180,
ST_TO_CMD = 0,
ST_FROM_CMD = 1,
INQUIRY_EVPD = 0x01,
ST_ADDITIONAL_MEM = 0x200000,
+ ST_ADDITIONAL_MEM_MIN = 0x80000,
};
-/* SCSI inquiry data */
-typedef struct st_inq {
- u8 DeviceType :5;
- u8 DeviceTypeQualifier :3;
- u8 DeviceTypeModifier :7;
- u8 RemovableMedia :1;
- u8 Versions;
- u8 ResponseDataFormat :4;
- u8 HiSupport :1;
- u8 NormACA :1;
- u8 ReservedBit :1;
- u8 AERC :1;
- u8 AdditionalLength;
- u8 Reserved[2];
- u8 SoftReset :1;
- u8 CommandQueue :1;
- u8 Reserved2 :1;
- u8 LinkedCommands :1;
- u8 Synchronous :1;
- u8 Wide16Bit :1;
- u8 Wide32Bit :1;
- u8 RelativeAddressing :1;
- u8 VendorId[8];
- u8 ProductId[16];
- u8 ProductRevisionLevel[4];
- u8 VendorSpecific[20];
- u8 Reserved3[40];
-} ST_INQ;
-
struct st_sgitem {
u8 ctrl; /* SG_CF_xxx */
u8 reserved[3];
__le32 count;
+ __le64 addr;
+};
+
+struct st_ss_sgitem {
__le32 addr;
__le32 addr_hi;
+ __le32 count;
};
struct st_sgtable {
__le16 sg_count;
__le16 max_sg_count;
__le32 sz_in_byte;
- struct st_sgitem table[ST_MAX_SG];
+};
+
+struct st_msg_header {
+ __le64 handle;
+ u8 flag;
+ u8 channel;
+ __le16 timeout;
+ u32 reserved;
};
struct handshake_frame {
- __le32 rb_phy; /* request payload queue physical address */
- __le32 rb_phy_hi;
+ __le64 rb_phy; /* request payload queue physical address */
__le16 req_sz; /* size of each request payload */
__le16 req_cnt; /* count of reqs the buffer can hold */
__le16 status_sz; /* size of each status payload */
__le16 status_cnt; /* count of status the buffer can hold */
- __le32 hosttime; /* seconds from Jan 1, 1970 (GMT) */
- __le32 hosttime_hi;
+ __le64 hosttime; /* seconds from Jan 1, 1970 (GMT) */
u8 partner_type; /* who sends this frame */
u8 reserved0[7];
__le32 partner_ver_major;
__le32 partner_ver_build;
__le32 extra_offset; /* NEW */
__le32 extra_size; /* NEW */
- u32 reserved1[2];
+ __le32 scratch_size;
+ u32 reserved1;
};
struct req_msg {
u8 target;
u8 task_attr;
u8 task_manage;
- u8 prd_entry;
+ u8 data_dir;
u8 payload_sz; /* payload size in 4-byte, not used */
u8 cdb[STEX_CDB_LENGTH];
- u8 variable[REQ_VARIABLE_LEN];
+ u32 variable[0];
};
struct status_msg {
u32 reserved[3];
};
-#define MU_REQ_BUFFER_SIZE (MU_REQ_COUNT * sizeof(struct req_msg))
-#define MU_STATUS_BUFFER_SIZE (MU_STATUS_COUNT * sizeof(struct status_msg))
-#define MU_BUFFER_SIZE (MU_REQ_BUFFER_SIZE + MU_STATUS_BUFFER_SIZE)
-#define STEX_EXTRA_SIZE max(sizeof(struct st_frame), sizeof(ST_INQ))
-#define STEX_BUFFER_SIZE (MU_BUFFER_SIZE + STEX_EXTRA_SIZE)
-
struct st_ccb {
struct req_msg *req;
struct scsi_cmnd *cmd;
u32 req_type;
u8 srb_status;
u8 scsi_status;
+ u8 reserved[2];
};
struct st_hba {
struct Scsi_Host *host;
struct pci_dev *pdev;
+ struct req_msg * (*alloc_rq) (struct st_hba *);
+ int (*map_sg)(struct st_hba *, struct req_msg *, struct st_ccb *);
+ void (*send) (struct st_hba *, struct req_msg *, u16);
+
u32 req_head;
u32 req_tail;
u32 status_head;
struct status_msg *status_buffer;
void *copy_buffer; /* temp buffer for driver-handled commands */
- struct st_ccb ccb[MU_MAX_REQUEST];
+ struct st_ccb *ccb;
struct st_ccb *wait_ccb;
- wait_queue_head_t waitq;
+ __le32 *scratch;
+ char work_q_name[20];
+ struct workqueue_struct *work_q;
+ struct work_struct reset_work;
+ wait_queue_head_t reset_waitq;
unsigned int mu_status;
+ unsigned int cardtype;
+ int msi_enabled;
int out_req_cnt;
+ u32 extra_offset;
+ u16 rq_count;
+ u16 rq_size;
+ u16 sts_count;
+};
- unsigned int cardtype;
+struct st_card_info {
+ struct req_msg * (*alloc_rq) (struct st_hba *);
+ int (*map_sg)(struct st_hba *, struct req_msg *, struct st_ccb *);
+ void (*send) (struct st_hba *, struct req_msg *, u16);
+ unsigned int max_id;
+ unsigned int max_lun;
+ unsigned int max_channel;
+ u16 rq_count;
+ u16 rq_size;
+ u16 sts_count;
};
+static int msi;
+module_param(msi, int, 0);
+MODULE_PARM_DESC(msi, "Enable Message Signaled Interrupts(0=off, 1=on)");
+
static const char console_inq_page[] =
{
0x03,0x00,0x03,0x03,0xFA,0x00,0x00,0x30,
MODULE_LICENSE("GPL");
MODULE_VERSION(ST_DRIVER_VERSION);
-static void stex_gettime(__le32 *time)
+static void stex_gettime(__le64 *time)
{
struct timeval tv;
- do_gettimeofday(&tv);
- *time = cpu_to_le32(tv.tv_sec & 0xffffffff);
- *(time + 1) = cpu_to_le32((tv.tv_sec >> 16) >> 16);
+ do_gettimeofday(&tv);
+ *time = cpu_to_le64(tv.tv_sec);
}
static struct status_msg *stex_get_status(struct st_hba *hba)
{
- struct status_msg *status =
- hba->status_buffer + hba->status_tail;
+ struct status_msg *status = hba->status_buffer + hba->status_tail;
++hba->status_tail;
- hba->status_tail %= MU_STATUS_COUNT;
+ hba->status_tail %= hba->sts_count+1;
return status;
}
-static void stex_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq)
-{
- cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
-
- cmd->sense_buffer[0] = 0x70; /* fixed format, current */
- cmd->sense_buffer[2] = sk;
- cmd->sense_buffer[7] = 18 - 8; /* additional sense length */
- cmd->sense_buffer[12] = asc;
- cmd->sense_buffer[13] = ascq;
-}
-
static void stex_invalid_field(struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *))
{
- /* "Invalid field in cbd" */
- stex_set_sense(cmd, ILLEGAL_REQUEST, 0x24, 0x0);
+ cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
+
+ /* "Invalid field in cdb" */
+ scsi_build_sense_buffer(0, cmd->sense_buffer, ILLEGAL_REQUEST, 0x24,
+ 0x0);
done(cmd);
}
static struct req_msg *stex_alloc_req(struct st_hba *hba)
{
- struct req_msg *req = ((struct req_msg *)hba->dma_mem) +
- hba->req_head;
+ struct req_msg *req = hba->dma_mem + hba->req_head * hba->rq_size;
++hba->req_head;
- hba->req_head %= MU_REQ_COUNT;
+ hba->req_head %= hba->rq_count+1;
return req;
}
+static struct req_msg *stex_ss_alloc_req(struct st_hba *hba)
+{
+ return (struct req_msg *)(hba->dma_mem +
+ hba->req_head * hba->rq_size + sizeof(struct st_msg_header));
+}
+
static int stex_map_sg(struct st_hba *hba,
struct req_msg *req, struct st_ccb *ccb)
{
struct scsi_cmnd *cmd;
struct scatterlist *sg;
struct st_sgtable *dst;
+ struct st_sgitem *table;
int i, nseg;
cmd = ccb->cmd;
- dst = (struct st_sgtable *)req->variable;
- dst->max_sg_count = cpu_to_le16(ST_MAX_SG);
- dst->sz_in_byte = cpu_to_le32(scsi_bufflen(cmd));
-
nseg = scsi_dma_map(cmd);
- if (nseg < 0)
- return -EIO;
+ BUG_ON(nseg < 0);
if (nseg) {
+ dst = (struct st_sgtable *)req->variable;
+
ccb->sg_count = nseg;
dst->sg_count = cpu_to_le16((u16)nseg);
+ dst->max_sg_count = cpu_to_le16(hba->host->sg_tablesize);
+ dst->sz_in_byte = cpu_to_le32(scsi_bufflen(cmd));
+ table = (struct st_sgitem *)(dst + 1);
scsi_for_each_sg(cmd, sg, nseg, i) {
- dst->table[i].count = cpu_to_le32((u32)sg_dma_len(sg));
- dst->table[i].addr =
- cpu_to_le32(sg_dma_address(sg) & 0xffffffff);
- dst->table[i].addr_hi =
- cpu_to_le32((sg_dma_address(sg) >> 16) >> 16);
- dst->table[i].ctrl = SG_CF_64B | SG_CF_HOST;
+ table[i].count = cpu_to_le32((u32)sg_dma_len(sg));
+ table[i].addr = cpu_to_le64(sg_dma_address(sg));
+ table[i].ctrl = SG_CF_64B | SG_CF_HOST;
}
- dst->table[--i].ctrl |= SG_CF_EOT;
+ table[--i].ctrl |= SG_CF_EOT;
}
- return 0;
+ return nseg;
}
-static void stex_internal_copy(struct scsi_cmnd *cmd,
- const void *src, size_t *count, int sg_count, int direction)
-{
- size_t lcount;
- size_t len;
- void *s, *d, *base = NULL;
- size_t offset;
-
- if (*count > scsi_bufflen(cmd))
- *count = scsi_bufflen(cmd);
- lcount = *count;
- while (lcount) {
- len = lcount;
- s = (void *)src;
-
- offset = *count - lcount;
- s += offset;
- base = scsi_kmap_atomic_sg(scsi_sglist(cmd),
- sg_count, &offset, &len);
- if (!base) {
- *count -= lcount;
- return;
- }
- d = base + offset;
-
- if (direction == ST_TO_CMD)
- memcpy(d, s, len);
- else
- memcpy(s, d, len);
-
- lcount -= len;
- scsi_kunmap_atomic_sg(base);
- }
-}
-
-static int stex_direct_copy(struct scsi_cmnd *cmd,
- const void *src, size_t count)
+static int stex_ss_map_sg(struct st_hba *hba,
+ struct req_msg *req, struct st_ccb *ccb)
{
- size_t cp_len = count;
- int n_elem = 0;
+ struct scsi_cmnd *cmd;
+ struct scatterlist *sg;
+ struct st_sgtable *dst;
+ struct st_ss_sgitem *table;
+ int i, nseg;
- n_elem = scsi_dma_map(cmd);
- if (n_elem < 0)
- return 0;
+ cmd = ccb->cmd;
+ nseg = scsi_dma_map(cmd);
+ BUG_ON(nseg < 0);
+ if (nseg) {
+ dst = (struct st_sgtable *)req->variable;
- stex_internal_copy(cmd, src, &cp_len, n_elem, ST_TO_CMD);
+ ccb->sg_count = nseg;
+ dst->sg_count = cpu_to_le16((u16)nseg);
+ dst->max_sg_count = cpu_to_le16(hba->host->sg_tablesize);
+ dst->sz_in_byte = cpu_to_le32(scsi_bufflen(cmd));
- scsi_dma_unmap(cmd);
+ table = (struct st_ss_sgitem *)(dst + 1);
+ scsi_for_each_sg(cmd, sg, nseg, i) {
+ table[i].count = cpu_to_le32((u32)sg_dma_len(sg));
+ table[i].addr =
+ cpu_to_le32(sg_dma_address(sg) & 0xffffffff);
+ table[i].addr_hi =
+ cpu_to_le32((sg_dma_address(sg) >> 16) >> 16);
+ }
+ }
- return cp_len == count;
+ return nseg;
}
static void stex_controller_info(struct st_hba *hba, struct st_ccb *ccb)
size_t count = sizeof(struct st_frame);
p = hba->copy_buffer;
- stex_internal_copy(ccb->cmd, p, &count, ccb->sg_count, ST_FROM_CMD);
+ scsi_sg_copy_to_buffer(ccb->cmd, p, count);
memset(p->base, 0, sizeof(u32)*6);
*(unsigned long *)(p->base) = pci_resource_start(hba->pdev, 0);
p->rom_addr = 0;
p->subid =
hba->pdev->subsystem_vendor << 16 | hba->pdev->subsystem_device;
- stex_internal_copy(ccb->cmd, p, &count, ccb->sg_count, ST_TO_CMD);
+ scsi_sg_copy_from_buffer(ccb->cmd, p, count);
}
static void
stex_send_cmd(struct st_hba *hba, struct req_msg *req, u16 tag)
{
req->tag = cpu_to_le16(tag);
- req->task_attr = TASK_ATTRIBUTE_SIMPLE;
- req->task_manage = 0; /* not supported yet */
hba->ccb[tag].req = req;
hba->out_req_cnt++;
readl(hba->mmio_base + IDBL); /* flush */
}
+static void
+stex_ss_send_cmd(struct st_hba *hba, struct req_msg *req, u16 tag)
+{
+ struct scsi_cmnd *cmd;
+ struct st_msg_header *msg_h;
+ dma_addr_t addr;
+
+ req->tag = cpu_to_le16(tag);
+
+ hba->ccb[tag].req = req;
+ hba->out_req_cnt++;
+
+ cmd = hba->ccb[tag].cmd;
+ msg_h = (struct st_msg_header *)req - 1;
+ if (likely(cmd)) {
+ msg_h->channel = (u8)cmd->device->channel;
+ msg_h->timeout = cpu_to_le16(cmd->request->timeout/HZ);
+ }
+ addr = hba->dma_handle + hba->req_head * hba->rq_size;
+ addr += (hba->ccb[tag].sg_count+4)/11;
+ msg_h->handle = cpu_to_le64(addr);
+
+ ++hba->req_head;
+ hba->req_head %= hba->rq_count+1;
+
+ writel((addr >> 16) >> 16, hba->mmio_base + YH2I_REQ_HI);
+ readl(hba->mmio_base + YH2I_REQ_HI); /* flush */
+ writel(addr, hba->mmio_base + YH2I_REQ);
+ readl(hba->mmio_base + YH2I_REQ); /* flush */
+}
+
static int
stex_slave_alloc(struct scsi_device *sdev)
{
{
sdev->use_10_for_rw = 1;
sdev->use_10_for_ms = 1;
- sdev->timeout = 60 * HZ;
+ blk_queue_rq_timeout(sdev->request_queue, 60 * HZ);
sdev->tagged_supported = 1;
return 0;
}
static int
-stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
+stex_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
{
struct st_hba *hba;
struct Scsi_Host *host;
- unsigned int id,lun;
+ unsigned int id, lun;
struct req_msg *req;
u16 tag;
+
host = cmd->device->host;
id = cmd->device->id;
lun = cmd->device->lun;
hba = (struct st_hba *) &host->hostdata[0];
+ if (unlikely(hba->mu_status == MU_STATE_RESETTING))
+ return SCSI_MLQUEUE_HOST_BUSY;
+
switch (cmd->cmnd[0]) {
case MODE_SENSE_10:
{
static char ms10_caching_page[12] =
{ 0, 0x12, 0, 0, 0, 0, 0, 0, 0x8, 0xa, 0x4, 0 };
unsigned char page;
+
page = cmd->cmnd[2] & 0x3f;
if (page == 0x8 || page == 0x3f) {
- stex_direct_copy(cmd, ms10_caching_page,
- sizeof(ms10_caching_page));
+ scsi_sg_copy_from_buffer(cmd, ms10_caching_page,
+ sizeof(ms10_caching_page));
cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
done(cmd);
} else
}
break;
case INQUIRY:
+ if (lun >= host->max_lun) {
+ cmd->result = DID_NO_CONNECT << 16;
+ done(cmd);
+ return 0;
+ }
if (id != host->max_id - 1)
break;
- if (lun == 0 && (cmd->cmnd[1] & INQUIRY_EVPD) == 0) {
- stex_direct_copy(cmd, console_inq_page,
- sizeof(console_inq_page));
+ if (!lun && !cmd->device->channel &&
+ (cmd->cmnd[1] & INQUIRY_EVPD) == 0) {
+ scsi_sg_copy_from_buffer(cmd, (void *)console_inq_page,
+ sizeof(console_inq_page));
cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
done(cmd);
} else
case PASSTHRU_CMD:
if (cmd->cmnd[1] == PASSTHRU_GET_DRVVER) {
struct st_drvver ver;
+ size_t cp_len = sizeof(ver);
+
ver.major = ST_VER_MAJOR;
ver.minor = ST_VER_MINOR;
ver.oem = ST_OEM;
ver.signature[0] = PASSTHRU_SIGNATURE;
ver.console_id = host->max_id - 1;
ver.host_no = hba->host->host_no;
- cmd->result = stex_direct_copy(cmd, &ver, sizeof(ver)) ?
+ cp_len = scsi_sg_copy_from_buffer(cmd, &ver, cp_len);
+ cmd->result = sizeof(ver) == cp_len ?
DID_OK << 16 | COMMAND_COMPLETE << 8 :
DID_ERROR << 16 | COMMAND_COMPLETE << 8;
done(cmd);
if (unlikely(tag >= host->can_queue))
return SCSI_MLQUEUE_HOST_BUSY;
- req = stex_alloc_req(hba);
+ req = hba->alloc_rq(hba);
req->lun = lun;
req->target = id;
/* cdb */
memcpy(req->cdb, cmd->cmnd, STEX_CDB_LENGTH);
+ if (cmd->sc_data_direction == DMA_FROM_DEVICE)
+ req->data_dir = MSG_DATA_DIR_IN;
+ else if (cmd->sc_data_direction == DMA_TO_DEVICE)
+ req->data_dir = MSG_DATA_DIR_OUT;
+ else
+ req->data_dir = MSG_DATA_DIR_ND;
+
hba->ccb[tag].cmd = cmd;
hba->ccb[tag].sense_bufflen = SCSI_SENSE_BUFFERSIZE;
hba->ccb[tag].sense_buffer = cmd->sense_buffer;
- hba->ccb[tag].req_type = 0;
- if (cmd->sc_data_direction != DMA_NONE)
- stex_map_sg(hba, req, &hba->ccb[tag]);
+ if (!hba->map_sg(hba, req, &hba->ccb[tag])) {
+ hba->ccb[tag].sg_count = 0;
+ memset(&req->variable[0], 0, 8);
+ }
- stex_send_cmd(hba, req, tag);
+ hba->send(hba, req, tag);
return 0;
}
+static DEF_SCSI_QCMD(stex_queuecommand)
+
static void stex_scsi_done(struct st_ccb *ccb)
{
struct scsi_cmnd *cmd = ccb->cmd;
int result;
- if (ccb->srb_status == SRB_STATUS_SUCCESS || ccb->srb_status == 0) {
+ if (ccb->srb_status == SRB_STATUS_SUCCESS || ccb->srb_status == 0) {
result = ccb->scsi_status;
switch (ccb->scsi_status) {
case SAM_STAT_GOOD:
static void stex_copy_data(struct st_ccb *ccb,
struct status_msg *resp, unsigned int variable)
{
- size_t count = variable;
if (resp->scsi_status != SAM_STAT_GOOD) {
if (ccb->sense_buffer != NULL)
memcpy(ccb->sense_buffer, resp->variable,
if (ccb->cmd == NULL)
return;
- stex_internal_copy(ccb->cmd,
- resp->variable, &count, ccb->sg_count, ST_TO_CMD);
+ scsi_sg_copy_from_buffer(ccb->cmd, resp->variable, variable);
}
-static void stex_ys_commands(struct st_hba *hba,
+static void stex_check_cmd(struct st_hba *hba,
struct st_ccb *ccb, struct status_msg *resp)
{
- size_t count;
-
if (ccb->cmd->cmnd[0] == MGT_CMD &&
- resp->scsi_status != SAM_STAT_CHECK_CONDITION) {
- scsi_bufflen(ccb->cmd) =
- le32_to_cpu(*(__le32 *)&resp->variable[0]);
- return;
- }
-
- if (resp->srb_status != 0)
- return;
-
- /* determine inquiry command status by DeviceTypeQualifier */
- if (ccb->cmd->cmnd[0] == INQUIRY &&
- resp->scsi_status == SAM_STAT_GOOD) {
- ST_INQ *inq_data;
-
- count = STEX_EXTRA_SIZE;
- stex_internal_copy(ccb->cmd, hba->copy_buffer,
- &count, ccb->sg_count, ST_FROM_CMD);
- inq_data = (ST_INQ *)hba->copy_buffer;
- if (inq_data->DeviceTypeQualifier != 0)
- ccb->srb_status = SRB_STATUS_SELECTION_TIMEOUT;
- else
- ccb->srb_status = SRB_STATUS_SUCCESS;
- }
+ resp->scsi_status != SAM_STAT_CHECK_CONDITION)
+ scsi_set_resid(ccb->cmd, scsi_bufflen(ccb->cmd) -
+ le32_to_cpu(*(__le32 *)&resp->variable[0]));
}
static void stex_mu_intr(struct st_hba *hba, u32 doorbell)
unsigned int size;
u16 tag;
- if (!(doorbell & MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED))
+ if (unlikely(!(doorbell & MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED)))
return;
/* status payloads */
hba->status_head = readl(base + OMR1);
- if (unlikely(hba->status_head >= MU_STATUS_COUNT)) {
+ if (unlikely(hba->status_head > hba->sts_count)) {
printk(KERN_WARNING DRV_NAME "(%s): invalid status head\n",
pci_name(hba->pdev));
return;
continue;
}
+ hba->out_req_cnt--;
ccb = &hba->ccb[tag];
- if (hba->wait_ccb == ccb)
+ if (unlikely(hba->wait_ccb == ccb))
hba->wait_ccb = NULL;
if (unlikely(ccb->req == NULL)) {
printk(KERN_WARNING DRV_NAME
"(%s): lagging req\n", pci_name(hba->pdev));
- hba->out_req_cnt--;
continue;
}
stex_copy_data(ccb, resp, size);
}
+ ccb->req = NULL;
ccb->srb_status = resp->srb_status;
ccb->scsi_status = resp->scsi_status;
if (likely(ccb->cmd != NULL)) {
if (hba->cardtype == st_yosemite)
- stex_ys_commands(hba, ccb, resp);
+ stex_check_cmd(hba, ccb, resp);
if (unlikely(ccb->cmd->cmnd[0] == PASSTHRU_CMD &&
ccb->cmd->cmnd[1] == PASSTHRU_GET_ADAPTER))
scsi_dma_unmap(ccb->cmd);
stex_scsi_done(ccb);
- hba->out_req_cnt--;
- } else if (ccb->req_type & PASSTHRU_REQ_TYPE) {
- hba->out_req_cnt--;
- if (ccb->req_type & PASSTHRU_REQ_NO_WAKEUP) {
- ccb->req_type = 0;
- continue;
- }
+ } else
ccb->req_type = 0;
- if (waitqueue_active(&hba->waitq))
- wake_up(&hba->waitq);
- }
}
update_status:
void __iomem *base = hba->mmio_base;
u32 data;
unsigned long flags;
- int handled = 0;
spin_lock_irqsave(hba->host->host_lock, flags);
writel(data, base + ODBL);
readl(base + ODBL); /* flush */
stex_mu_intr(hba, data);
- handled = 1;
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+ if (unlikely(data & MU_OUTBOUND_DOORBELL_REQUEST_RESET &&
+ hba->cardtype == st_shasta))
+ queue_work(hba->work_q, &hba->reset_work);
+ return IRQ_HANDLED;
}
spin_unlock_irqrestore(hba->host->host_lock, flags);
- return IRQ_RETVAL(handled);
+ return IRQ_NONE;
}
-static int stex_handshake(struct st_hba *hba)
+static void stex_ss_mu_intr(struct st_hba *hba)
+{
+ struct status_msg *resp;
+ struct st_ccb *ccb;
+ __le32 *scratch;
+ unsigned int size;
+ int count = 0;
+ u32 value;
+ u16 tag;
+
+ if (unlikely(hba->out_req_cnt <= 0 ||
+ hba->mu_status == MU_STATE_RESETTING))
+ return;
+
+ while (count < hba->sts_count) {
+ scratch = hba->scratch + hba->status_tail;
+ value = le32_to_cpu(*scratch);
+ if (unlikely(!(value & SS_STS_NORMAL)))
+ return;
+
+ resp = hba->status_buffer + hba->status_tail;
+ *scratch = 0;
+ ++count;
+ ++hba->status_tail;
+ hba->status_tail %= hba->sts_count+1;
+
+ tag = (u16)value;
+ if (unlikely(tag >= hba->host->can_queue)) {
+ printk(KERN_WARNING DRV_NAME
+ "(%s): invalid tag\n", pci_name(hba->pdev));
+ continue;
+ }
+
+ hba->out_req_cnt--;
+ ccb = &hba->ccb[tag];
+ if (unlikely(hba->wait_ccb == ccb))
+ hba->wait_ccb = NULL;
+ if (unlikely(ccb->req == NULL)) {
+ printk(KERN_WARNING DRV_NAME
+ "(%s): lagging req\n", pci_name(hba->pdev));
+ continue;
+ }
+
+ ccb->req = NULL;
+ if (likely(value & SS_STS_DONE)) { /* normal case */
+ ccb->srb_status = SRB_STATUS_SUCCESS;
+ ccb->scsi_status = SAM_STAT_GOOD;
+ } else {
+ ccb->srb_status = resp->srb_status;
+ ccb->scsi_status = resp->scsi_status;
+ size = resp->payload_sz * sizeof(u32);
+ if (unlikely(size < sizeof(*resp) - STATUS_VAR_LEN ||
+ size > sizeof(*resp))) {
+ printk(KERN_WARNING DRV_NAME
+ "(%s): bad status size\n",
+ pci_name(hba->pdev));
+ } else {
+ size -= sizeof(*resp) - STATUS_VAR_LEN;
+ if (size)
+ stex_copy_data(ccb, resp, size);
+ }
+ if (likely(ccb->cmd != NULL))
+ stex_check_cmd(hba, ccb, resp);
+ }
+
+ if (likely(ccb->cmd != NULL)) {
+ scsi_dma_unmap(ccb->cmd);
+ stex_scsi_done(ccb);
+ } else
+ ccb->req_type = 0;
+ }
+}
+
+static irqreturn_t stex_ss_intr(int irq, void *__hba)
+{
+ struct st_hba *hba = __hba;
+ void __iomem *base = hba->mmio_base;
+ u32 data;
+ unsigned long flags;
+
+ spin_lock_irqsave(hba->host->host_lock, flags);
+
+ data = readl(base + YI2H_INT);
+ if (data && data != 0xffffffff) {
+ /* clear the interrupt */
+ writel(data, base + YI2H_INT_C);
+ stex_ss_mu_intr(hba);
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+ if (unlikely(data & SS_I2H_REQUEST_RESET))
+ queue_work(hba->work_q, &hba->reset_work);
+ return IRQ_HANDLED;
+ }
+
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+
+ return IRQ_NONE;
+}
+
+static int stex_common_handshake(struct st_hba *hba)
{
void __iomem *base = hba->mmio_base;
struct handshake_frame *h;
data = readl(base + OMR1);
if ((data & 0xffff0000) == MU_HANDSHAKE_SIGNATURE_HALF) {
data &= 0x0000ffff;
- if (hba->host->can_queue > data)
+ if (hba->host->can_queue > data) {
hba->host->can_queue = data;
+ hba->host->cmd_per_lun = data;
+ }
}
- h = (struct handshake_frame *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);
- h->rb_phy = cpu_to_le32(hba->dma_handle);
- h->rb_phy_hi = cpu_to_le32((hba->dma_handle >> 16) >> 16);
- h->req_sz = cpu_to_le16(sizeof(struct req_msg));
- h->req_cnt = cpu_to_le16(MU_REQ_COUNT);
+ h = (struct handshake_frame *)hba->status_buffer;
+ h->rb_phy = cpu_to_le64(hba->dma_handle);
+ h->req_sz = cpu_to_le16(hba->rq_size);
+ h->req_cnt = cpu_to_le16(hba->rq_count+1);
h->status_sz = cpu_to_le16(sizeof(struct status_msg));
- h->status_cnt = cpu_to_le16(MU_STATUS_COUNT);
+ h->status_cnt = cpu_to_le16(hba->sts_count+1);
stex_gettime(&h->hosttime);
h->partner_type = HMU_PARTNER_TYPE;
- if (hba->dma_size > STEX_BUFFER_SIZE) {
- h->extra_offset = cpu_to_le32(STEX_BUFFER_SIZE);
- h->extra_size = cpu_to_le32(ST_ADDITIONAL_MEM);
+ if (hba->extra_offset) {
+ h->extra_offset = cpu_to_le32(hba->extra_offset);
+ h->extra_size = cpu_to_le32(hba->dma_size - hba->extra_offset);
} else
h->extra_offset = h->extra_size = 0;
- status_phys = hba->dma_handle + MU_REQ_BUFFER_SIZE;
+ status_phys = hba->dma_handle + (hba->rq_count+1) * hba->rq_size;
writel(status_phys, base + IMR0);
readl(base + IMR0);
writel((status_phys >> 16) >> 16, base + IMR1);
readl(base + IMR1);
writel(0, base + OMR1);
readl(base + OMR1); /* flush */
- hba->mu_status = MU_STATE_STARTED;
return 0;
}
+static int stex_ss_handshake(struct st_hba *hba)
+{
+ void __iomem *base = hba->mmio_base;
+ struct st_msg_header *msg_h;
+ struct handshake_frame *h;
+ __le32 *scratch;
+ u32 data, scratch_size;
+ unsigned long before;
+ int ret = 0;
+
+ before = jiffies;
+ while ((readl(base + YIOA_STATUS) & SS_MU_OPERATIONAL) == 0) {
+ if (time_after(jiffies, before + MU_MAX_DELAY * HZ)) {
+ printk(KERN_ERR DRV_NAME
+ "(%s): firmware not operational\n",
+ pci_name(hba->pdev));
+ return -1;
+ }
+ msleep(1);
+ }
+
+ msg_h = (struct st_msg_header *)hba->dma_mem;
+ msg_h->handle = cpu_to_le64(hba->dma_handle);
+ msg_h->flag = SS_HEAD_HANDSHAKE;
+
+ h = (struct handshake_frame *)(msg_h + 1);
+ h->rb_phy = cpu_to_le64(hba->dma_handle);
+ h->req_sz = cpu_to_le16(hba->rq_size);
+ h->req_cnt = cpu_to_le16(hba->rq_count+1);
+ h->status_sz = cpu_to_le16(sizeof(struct status_msg));
+ h->status_cnt = cpu_to_le16(hba->sts_count+1);
+ stex_gettime(&h->hosttime);
+ h->partner_type = HMU_PARTNER_TYPE;
+ h->extra_offset = h->extra_size = 0;
+ scratch_size = (hba->sts_count+1)*sizeof(u32);
+ h->scratch_size = cpu_to_le32(scratch_size);
+
+ data = readl(base + YINT_EN);
+ data &= ~4;
+ writel(data, base + YINT_EN);
+ writel((hba->dma_handle >> 16) >> 16, base + YH2I_REQ_HI);
+ readl(base + YH2I_REQ_HI);
+ writel(hba->dma_handle, base + YH2I_REQ);
+ readl(base + YH2I_REQ); /* flush */
+
+ scratch = hba->scratch;
+ before = jiffies;
+ while (!(le32_to_cpu(*scratch) & SS_STS_HANDSHAKE)) {
+ if (time_after(jiffies, before + MU_MAX_DELAY * HZ)) {
+ printk(KERN_ERR DRV_NAME
+ "(%s): no signature after handshake frame\n",
+ pci_name(hba->pdev));
+ ret = -1;
+ break;
+ }
+ rmb();
+ msleep(1);
+ }
+
+ memset(scratch, 0, scratch_size);
+ msg_h->flag = 0;
+ return ret;
+}
+
+static int stex_handshake(struct st_hba *hba)
+{
+ int err;
+ unsigned long flags;
+ unsigned int mu_status;
+
+ err = (hba->cardtype == st_yel) ?
+ stex_ss_handshake(hba) : stex_common_handshake(hba);
+ spin_lock_irqsave(hba->host->host_lock, flags);
+ mu_status = hba->mu_status;
+ if (err == 0) {
+ hba->req_head = 0;
+ hba->req_tail = 0;
+ hba->status_head = 0;
+ hba->status_tail = 0;
+ hba->out_req_cnt = 0;
+ hba->mu_status = MU_STATE_STARTED;
+ } else
+ hba->mu_status = MU_STATE_FAILED;
+ if (mu_status == MU_STATE_RESETTING)
+ wake_up_all(&hba->reset_waitq);
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+ return err;
+}
+
static int stex_abort(struct scsi_cmnd *cmd)
{
struct Scsi_Host *host = cmd->device->host;
base = hba->mmio_base;
spin_lock_irqsave(host->host_lock, flags);
- if (tag < host->can_queue && hba->ccb[tag].cmd == cmd)
+ if (tag < host->can_queue &&
+ hba->ccb[tag].req && hba->ccb[tag].cmd == cmd)
hba->wait_ccb = &hba->ccb[tag];
- else {
- for (tag = 0; tag < host->can_queue; tag++)
- if (hba->ccb[tag].cmd == cmd) {
- hba->wait_ccb = &hba->ccb[tag];
- break;
- }
- if (tag >= host->can_queue)
- goto out;
- }
+ else
+ goto out;
- data = readl(base + ODBL);
- if (data == 0 || data == 0xffffffff)
- goto fail_out;
+ if (hba->cardtype == st_yel) {
+ data = readl(base + YI2H_INT);
+ if (data == 0 || data == 0xffffffff)
+ goto fail_out;
- writel(data, base + ODBL);
- readl(base + ODBL); /* flush */
+ writel(data, base + YI2H_INT_C);
+ stex_ss_mu_intr(hba);
+ } else {
+ data = readl(base + ODBL);
+ if (data == 0 || data == 0xffffffff)
+ goto fail_out;
- stex_mu_intr(hba, data);
+ writel(data, base + ODBL);
+ readl(base + ODBL); /* flush */
+ stex_mu_intr(hba, data);
+ }
if (hba->wait_ccb == NULL) {
printk(KERN_WARNING DRV_NAME
"(%s): lost interrupt\n", pci_name(hba->pdev));
hba->pdev->saved_config_space[i]);
}
-static int stex_reset(struct scsi_cmnd *cmd)
+static int stex_yos_reset(struct st_hba *hba)
{
- struct st_hba *hba;
+ void __iomem *base;
+ unsigned long flags, before;
+ int ret = 0;
+
+ base = hba->mmio_base;
+ writel(MU_INBOUND_DOORBELL_RESET, base + IDBL);
+ readl(base + IDBL); /* flush */
+ before = jiffies;
+ while (hba->out_req_cnt > 0) {
+ if (time_after(jiffies, before + ST_INTERNAL_TIMEOUT * HZ)) {
+ printk(KERN_WARNING DRV_NAME
+ "(%s): reset timeout\n", pci_name(hba->pdev));
+ ret = -1;
+ break;
+ }
+ msleep(1);
+ }
+
+ spin_lock_irqsave(hba->host->host_lock, flags);
+ if (ret == -1)
+ hba->mu_status = MU_STATE_FAILED;
+ else
+ hba->mu_status = MU_STATE_STARTED;
+ wake_up_all(&hba->reset_waitq);
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+
+ return ret;
+}
+
+static void stex_ss_reset(struct st_hba *hba)
+{
+ writel(SS_H2I_INT_RESET, hba->mmio_base + YH2I_INT);
+ readl(hba->mmio_base + YH2I_INT);
+ ssleep(5);
+}
+
+static int stex_do_reset(struct st_hba *hba)
+{
+ struct st_ccb *ccb;
unsigned long flags;
- unsigned long before;
- hba = (struct st_hba *) &cmd->device->host->hostdata[0];
+ unsigned int mu_status = MU_STATE_RESETTING;
+ u16 tag;
- printk(KERN_INFO DRV_NAME
- "(%s): resetting host\n", pci_name(hba->pdev));
- scsi_print_command(cmd);
+ spin_lock_irqsave(hba->host->host_lock, flags);
+ if (hba->mu_status == MU_STATE_STARTING) {
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+ printk(KERN_INFO DRV_NAME "(%s): request reset during init\n",
+ pci_name(hba->pdev));
+ return 0;
+ }
+ while (hba->mu_status == MU_STATE_RESETTING) {
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+ wait_event_timeout(hba->reset_waitq,
+ hba->mu_status != MU_STATE_RESETTING,
+ MU_MAX_DELAY * HZ);
+ spin_lock_irqsave(hba->host->host_lock, flags);
+ mu_status = hba->mu_status;
+ }
+
+ if (mu_status != MU_STATE_RESETTING) {
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+ return (mu_status == MU_STATE_STARTED) ? 0 : -1;
+ }
hba->mu_status = MU_STATE_RESETTING;
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+
+ if (hba->cardtype == st_yosemite)
+ return stex_yos_reset(hba);
if (hba->cardtype == st_shasta)
stex_hard_reset(hba);
+ else if (hba->cardtype == st_yel)
+ stex_ss_reset(hba);
- if (hba->cardtype != st_yosemite) {
- if (stex_handshake(hba)) {
- printk(KERN_WARNING DRV_NAME
- "(%s): resetting: handshake failed\n",
- pci_name(hba->pdev));
- return FAILED;
+ spin_lock_irqsave(hba->host->host_lock, flags);
+ for (tag = 0; tag < hba->host->can_queue; tag++) {
+ ccb = &hba->ccb[tag];
+ if (ccb->req == NULL)
+ continue;
+ ccb->req = NULL;
+ if (ccb->cmd) {
+ scsi_dma_unmap(ccb->cmd);
+ ccb->cmd->result = DID_RESET << 16;
+ ccb->cmd->scsi_done(ccb->cmd);
+ ccb->cmd = NULL;
}
- spin_lock_irqsave(hba->host->host_lock, flags);
- hba->req_head = 0;
- hba->req_tail = 0;
- hba->status_head = 0;
- hba->status_tail = 0;
- hba->out_req_cnt = 0;
- spin_unlock_irqrestore(hba->host->host_lock, flags);
- return SUCCESS;
}
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
- /* st_yosemite */
- writel(MU_INBOUND_DOORBELL_RESET, hba->mmio_base + IDBL);
- readl(hba->mmio_base + IDBL); /* flush */
- before = jiffies;
- while (hba->out_req_cnt > 0) {
- if (time_after(jiffies, before + ST_INTERNAL_TIMEOUT * HZ)) {
- printk(KERN_WARNING DRV_NAME
- "(%s): reset timeout\n", pci_name(hba->pdev));
- return FAILED;
- }
- msleep(1);
- }
+ if (stex_handshake(hba) == 0)
+ return 0;
- hba->mu_status = MU_STATE_STARTED;
- return SUCCESS;
+ printk(KERN_WARNING DRV_NAME "(%s): resetting: handshake failed\n",
+ pci_name(hba->pdev));
+ return -1;
+}
+
+static int stex_reset(struct scsi_cmnd *cmd)
+{
+ struct st_hba *hba;
+
+ hba = (struct st_hba *) &cmd->device->host->hostdata[0];
+
+ printk(KERN_INFO DRV_NAME
+ "(%s): resetting host\n", pci_name(hba->pdev));
+ scsi_print_command(cmd);
+
+ return stex_do_reset(hba) ? FAILED : SUCCESS;
+}
+
+static void stex_reset_work(struct work_struct *work)
+{
+ struct st_hba *hba = container_of(work, struct st_hba, reset_work);
+
+ stex_do_reset(hba);
}
static int stex_biosparam(struct scsi_device *sdev,
.slave_destroy = stex_slave_destroy,
.eh_abort_handler = stex_abort,
.eh_host_reset_handler = stex_reset,
- .can_queue = ST_CAN_QUEUE,
.this_id = -1,
- .sg_tablesize = ST_MAX_SG,
- .cmd_per_lun = ST_CMD_PER_LUN,
+};
+
+static struct pci_device_id stex_pci_tbl[] = {
+ /* st_shasta */
+ { 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ st_shasta }, /* SuperTrak EX8350/8300/16350/16300 */
+ { 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ st_shasta }, /* SuperTrak EX12350 */
+ { 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ st_shasta }, /* SuperTrak EX4350 */
+ { 0x105a, 0xe350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ st_shasta }, /* SuperTrak EX24350 */
+
+ /* st_vsc */
+ { 0x105a, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },
+
+ /* st_yosemite */
+ { 0x105a, 0x8650, 0x105a, PCI_ANY_ID, 0, 0, st_yosemite },
+
+ /* st_seq */
+ { 0x105a, 0x3360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_seq },
+
+ /* st_yel */
+ { 0x105a, 0x8650, 0x1033, PCI_ANY_ID, 0, 0, st_yel },
+ { 0x105a, 0x8760, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_yel },
+ { } /* terminate list */
+};
+
+static struct st_card_info stex_card_info[] = {
+ /* st_shasta */
+ {
+ .max_id = 17,
+ .max_lun = 8,
+ .max_channel = 0,
+ .rq_count = 32,
+ .rq_size = 1048,
+ .sts_count = 32,
+ .alloc_rq = stex_alloc_req,
+ .map_sg = stex_map_sg,
+ .send = stex_send_cmd,
+ },
+
+ /* st_vsc */
+ {
+ .max_id = 129,
+ .max_lun = 1,
+ .max_channel = 0,
+ .rq_count = 32,
+ .rq_size = 1048,
+ .sts_count = 32,
+ .alloc_rq = stex_alloc_req,
+ .map_sg = stex_map_sg,
+ .send = stex_send_cmd,
+ },
+
+ /* st_yosemite */
+ {
+ .max_id = 2,
+ .max_lun = 256,
+ .max_channel = 0,
+ .rq_count = 256,
+ .rq_size = 1048,
+ .sts_count = 256,
+ .alloc_rq = stex_alloc_req,
+ .map_sg = stex_map_sg,
+ .send = stex_send_cmd,
+ },
+
+ /* st_seq */
+ {
+ .max_id = 129,
+ .max_lun = 1,
+ .max_channel = 0,
+ .rq_count = 32,
+ .rq_size = 1048,
+ .sts_count = 32,
+ .alloc_rq = stex_alloc_req,
+ .map_sg = stex_map_sg,
+ .send = stex_send_cmd,
+ },
+
+ /* st_yel */
+ {
+ .max_id = 129,
+ .max_lun = 256,
+ .max_channel = 3,
+ .rq_count = 801,
+ .rq_size = 512,
+ .sts_count = 801,
+ .alloc_rq = stex_ss_alloc_req,
+ .map_sg = stex_ss_map_sg,
+ .send = stex_ss_send_cmd,
+ },
};
static int stex_set_dma_mask(struct pci_dev * pdev)
{
int ret;
- if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)
- && !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
+
+ if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
+ && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
return 0;
- ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (!ret)
- ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
return ret;
}
+static int stex_request_irq(struct st_hba *hba)
+{
+ struct pci_dev *pdev = hba->pdev;
+ int status;
+
+ if (msi) {
+ status = pci_enable_msi(pdev);
+ if (status != 0)
+ printk(KERN_ERR DRV_NAME
+ "(%s): error %d setting up MSI\n",
+ pci_name(pdev), status);
+ else
+ hba->msi_enabled = 1;
+ } else
+ hba->msi_enabled = 0;
+
+ status = request_irq(pdev->irq, hba->cardtype == st_yel ?
+ stex_ss_intr : stex_intr, IRQF_SHARED, DRV_NAME, hba);
+
+ if (status != 0) {
+ if (hba->msi_enabled)
+ pci_disable_msi(pdev);
+ }
+ return status;
+}
+
+static void stex_free_irq(struct st_hba *hba)
+{
+ struct pci_dev *pdev = hba->pdev;
+
+ free_irq(pdev->irq, hba);
+ if (hba->msi_enabled)
+ pci_disable_msi(pdev);
+}
+
static int __devinit
stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct st_hba *hba;
struct Scsi_Host *host;
+ const struct st_card_info *ci = NULL;
+ u32 sts_offset, cp_offset, scratch_offset;
int err;
err = pci_enable_device(pdev);
goto out_scsi_host_put;
}
- hba->mmio_base = ioremap_nocache(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0));
+ hba->mmio_base = pci_ioremap_bar(pdev, 0);
if ( !hba->mmio_base) {
printk(KERN_ERR DRV_NAME "(%s): memory map failed\n",
pci_name(pdev));
}
hba->cardtype = (unsigned int) id->driver_data;
- if (hba->cardtype == st_vsc && (pdev->subsystem_device & 0xf) == 0x1)
- hba->cardtype = st_vsc1;
- hba->dma_size = (hba->cardtype == st_vsc1) ?
- (STEX_BUFFER_SIZE + ST_ADDITIONAL_MEM) : (STEX_BUFFER_SIZE);
+ ci = &stex_card_info[hba->cardtype];
+ sts_offset = scratch_offset = (ci->rq_count+1) * ci->rq_size;
+ if (hba->cardtype == st_yel)
+ sts_offset += (ci->sts_count+1) * sizeof(u32);
+ cp_offset = sts_offset + (ci->sts_count+1) * sizeof(struct status_msg);
+ hba->dma_size = cp_offset + sizeof(struct st_frame);
+ if (hba->cardtype == st_seq ||
+ (hba->cardtype == st_vsc && (pdev->subsystem_device & 1))) {
+ hba->extra_offset = hba->dma_size;
+ hba->dma_size += ST_ADDITIONAL_MEM;
+ }
hba->dma_mem = dma_alloc_coherent(&pdev->dev,
hba->dma_size, &hba->dma_handle, GFP_KERNEL);
if (!hba->dma_mem) {
+ /* Retry minimum coherent mapping for st_seq and st_vsc */
+ if (hba->cardtype == st_seq ||
+ (hba->cardtype == st_vsc && (pdev->subsystem_device & 1))) {
+ printk(KERN_WARNING DRV_NAME
+ "(%s): allocating min buffer for controller\n",
+ pci_name(pdev));
+ hba->dma_size = hba->extra_offset
+ + ST_ADDITIONAL_MEM_MIN;
+ hba->dma_mem = dma_alloc_coherent(&pdev->dev,
+ hba->dma_size, &hba->dma_handle, GFP_KERNEL);
+ }
+
+ if (!hba->dma_mem) {
+ err = -ENOMEM;
+ printk(KERN_ERR DRV_NAME "(%s): dma mem alloc failed\n",
+ pci_name(pdev));
+ goto out_iounmap;
+ }
+ }
+
+ hba->ccb = kcalloc(ci->rq_count, sizeof(struct st_ccb), GFP_KERNEL);
+ if (!hba->ccb) {
err = -ENOMEM;
- printk(KERN_ERR DRV_NAME "(%s): dma mem alloc failed\n",
+ printk(KERN_ERR DRV_NAME "(%s): ccb alloc failed\n",
pci_name(pdev));
- goto out_iounmap;
+ goto out_pci_free;
}
- hba->status_buffer =
- (struct status_msg *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);
- hba->copy_buffer = hba->dma_mem + MU_BUFFER_SIZE;
+ if (hba->cardtype == st_yel)
+ hba->scratch = (__le32 *)(hba->dma_mem + scratch_offset);
+ hba->status_buffer = (struct status_msg *)(hba->dma_mem + sts_offset);
+ hba->copy_buffer = hba->dma_mem + cp_offset;
+ hba->rq_count = ci->rq_count;
+ hba->rq_size = ci->rq_size;
+ hba->sts_count = ci->sts_count;
+ hba->alloc_rq = ci->alloc_rq;
+ hba->map_sg = ci->map_sg;
+ hba->send = ci->send;
hba->mu_status = MU_STATE_STARTING;
- if (hba->cardtype == st_shasta) {
- host->max_lun = 8;
- host->max_id = 16 + 1;
- } else if (hba->cardtype == st_yosemite) {
- host->max_lun = 128;
- host->max_id = 1 + 1;
- } else {
- /* st_vsc and st_vsc1 */
- host->max_lun = 1;
- host->max_id = 128 + 1;
- }
- host->max_channel = 0;
+ if (hba->cardtype == st_yel)
+ host->sg_tablesize = 38;
+ else
+ host->sg_tablesize = 32;
+ host->can_queue = ci->rq_count;
+ host->cmd_per_lun = ci->rq_count;
+ host->max_id = ci->max_id;
+ host->max_lun = ci->max_lun;
+ host->max_channel = ci->max_channel;
host->unique_id = host->host_no;
host->max_cmd_len = STEX_CDB_LENGTH;
hba->host = host;
hba->pdev = pdev;
- init_waitqueue_head(&hba->waitq);
+ init_waitqueue_head(&hba->reset_waitq);
+
+ snprintf(hba->work_q_name, sizeof(hba->work_q_name),
+ "stex_wq_%d", host->host_no);
+ hba->work_q = create_singlethread_workqueue(hba->work_q_name);
+ if (!hba->work_q) {
+ printk(KERN_ERR DRV_NAME "(%s): create workqueue failed\n",
+ pci_name(pdev));
+ err = -ENOMEM;
+ goto out_ccb_free;
+ }
+ INIT_WORK(&hba->reset_work, stex_reset_work);
- err = request_irq(pdev->irq, stex_intr, IRQF_SHARED, DRV_NAME, hba);
+ err = stex_request_irq(hba);
if (err) {
printk(KERN_ERR DRV_NAME "(%s): request irq failed\n",
pci_name(pdev));
- goto out_pci_free;
+ goto out_free_wq;
}
err = stex_handshake(hba);
return 0;
out_free_irq:
- free_irq(pdev->irq, hba);
+ stex_free_irq(hba);
+out_free_wq:
+ destroy_workqueue(hba->work_q);
+out_ccb_free:
+ kfree(hba->ccb);
out_pci_free:
dma_free_coherent(&pdev->dev, hba->dma_size,
hba->dma_mem, hba->dma_handle);
static void stex_hba_stop(struct st_hba *hba)
{
struct req_msg *req;
+ struct st_msg_header *msg_h;
unsigned long flags;
unsigned long before;
u16 tag = 0;
spin_lock_irqsave(hba->host->host_lock, flags);
- req = stex_alloc_req(hba);
- memset(req->cdb, 0, STEX_CDB_LENGTH);
+ req = hba->alloc_rq(hba);
+ if (hba->cardtype == st_yel) {
+ msg_h = (struct st_msg_header *)req - 1;
+ memset(msg_h, 0, hba->rq_size);
+ } else
+ memset(req, 0, hba->rq_size);
- if (hba->cardtype == st_yosemite) {
+ if (hba->cardtype == st_yosemite || hba->cardtype == st_yel) {
req->cdb[0] = MGT_CMD;
req->cdb[1] = MGT_CMD_SIGNATURE;
req->cdb[2] = CTLR_CONFIG_CMD;
hba->ccb[tag].sg_count = 0;
hba->ccb[tag].sense_bufflen = 0;
hba->ccb[tag].sense_buffer = NULL;
- hba->ccb[tag].req_type |= PASSTHRU_REQ_TYPE;
+ hba->ccb[tag].req_type = PASSTHRU_REQ_TYPE;
- stex_send_cmd(hba, req, tag);
+ hba->send(hba, req, tag);
spin_unlock_irqrestore(hba->host->host_lock, flags);
before = jiffies;
while (hba->ccb[tag].req_type & PASSTHRU_REQ_TYPE) {
- if (time_after(jiffies, before + ST_INTERNAL_TIMEOUT * HZ))
+ if (time_after(jiffies, before + ST_INTERNAL_TIMEOUT * HZ)) {
+ hba->ccb[tag].req_type = 0;
return;
- msleep(10);
+ }
+ msleep(1);
}
}
static void stex_hba_free(struct st_hba *hba)
{
- free_irq(hba->pdev->irq, hba);
+ stex_free_irq(hba);
+
+ destroy_workqueue(hba->work_q);
iounmap(hba->mmio_base);
pci_release_regions(hba->pdev);
+ kfree(hba->ccb);
+
dma_free_coherent(&hba->pdev->dev, hba->dma_size,
hba->dma_mem, hba->dma_handle);
}
stex_hba_stop(hba);
}
-static struct pci_device_id stex_pci_tbl[] = {
- /* st_shasta */
- { 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- st_shasta }, /* SuperTrak EX8350/8300/16350/16300 */
- { 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- st_shasta }, /* SuperTrak EX12350 */
- { 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- st_shasta }, /* SuperTrak EX4350 */
- { 0x105a, 0xe350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- st_shasta }, /* SuperTrak EX24350 */
-
- /* st_vsc */
- { 0x105a, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },
-
- /* st_yosemite */
- { 0x105a, 0x8650, PCI_ANY_ID, 0x4600, 0, 0,
- st_yosemite }, /* SuperTrak EX4650 */
- { 0x105a, 0x8650, PCI_ANY_ID, 0x4610, 0, 0,
- st_yosemite }, /* SuperTrak EX4650o */
- { 0x105a, 0x8650, PCI_ANY_ID, 0x8600, 0, 0,
- st_yosemite }, /* SuperTrak EX8650EL */
- { 0x105a, 0x8650, PCI_ANY_ID, 0x8601, 0, 0,
- st_yosemite }, /* SuperTrak EX8650 */
- { 0x105a, 0x8650, PCI_ANY_ID, 0x8602, 0, 0,
- st_yosemite }, /* SuperTrak EX8654 */
- { 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- st_yosemite }, /* generic st_yosemite */
- { } /* terminate list */
-};
MODULE_DEVICE_TABLE(pci, stex_pci_tbl);
static struct pci_driver stex_pci_driver = {
Code Review / linux-2.6.git / blobdiff