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Diffstat (limited to 'drivers/scsi/stex.c')
-rw-r--r--drivers/scsi/stex.c742
1 files changed, 572 insertions, 170 deletions
diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index 47b614e8580..df7f96caa1c 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -36,11 +36,11 @@
#include <scsi/scsi_eh.h>
#define DRV_NAME "stex"
-#define ST_DRIVER_VERSION "4.6.0000.1"
-#define ST_VER_MAJOR 4
-#define ST_VER_MINOR 6
-#define ST_OEM 0
-#define ST_BUILD_VER 1
+#define ST_DRIVER_VERSION "4.6.0000.3"
+#define ST_VER_MAJOR 4
+#define ST_VER_MINOR 6
+#define ST_OEM 0
+#define ST_BUILD_VER 3
enum {
/* MU register offset */
@@ -55,6 +55,13 @@ enum {
OIS = 0x30, /* MU_OUTBOUND_INTERRUPT_STATUS */
OIM = 0x3c, /* MU_OUTBOUND_INTERRUPT_MASK */
+ 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,
@@ -95,20 +102,14 @@ enum {
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,
- /* 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_HEAD_HANDSHAKE = 0x80,
STEX_CDB_LENGTH = 16,
- REQ_VARIABLE_LEN = 1024,
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 */
@@ -120,9 +121,9 @@ enum {
st_shasta = 0,
st_vsc = 1,
- st_vsc1 = 2,
- st_yosemite = 3,
- st_seq = 4,
+ st_yosemite = 2,
+ st_seq = 3,
+ st_yel = 4,
PASSTHRU_REQ_TYPE = 0x00000001,
PASSTHRU_REQ_NO_WAKEUP = 0x00000100,
@@ -160,26 +161,36 @@ 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;
@@ -188,7 +199,8 @@ struct handshake_frame {
__le32 partner_ver_build;
__le32 extra_offset; /* NEW */
__le32 extra_size; /* NEW */
- u32 reserved1[2];
+ __le32 scratch_size;
+ u32 reserved1;
};
struct req_msg {
@@ -200,7 +212,7 @@ struct req_msg {
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 {
@@ -256,12 +268,6 @@ struct st_drvver {
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 sizeof(struct st_frame)
-#define STEX_BUFFER_SIZE (MU_BUFFER_SIZE + STEX_EXTRA_SIZE)
-
struct st_ccb {
struct req_msg *req;
struct scsi_cmnd *cmd;
@@ -273,6 +279,7 @@ struct st_ccb {
u32 req_type;
u8 srb_status;
u8 scsi_status;
+ u8 reserved[2];
};
struct st_hba {
@@ -284,6 +291,10 @@ 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;
@@ -291,16 +302,36 @@ struct st_hba {
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;
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,
@@ -318,22 +349,20 @@ MODULE_DESCRIPTION("Promise Technology SuperTrak EX Controllers");
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);
+ *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;
}
@@ -351,47 +380,83 @@ static void stex_invalid_field(struct scsi_cmnd *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);
+ 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) {
+ 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;
+ }
+ table[--i].ctrl |= SG_CF_EOT;
+ }
+
+ return nseg;
+}
+
+static int stex_ss_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_ss_sgitem *table;
+ int i, nseg;
+ cmd = ccb->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_ss_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 =
+ table[i].count = cpu_to_le32((u32)sg_dma_len(sg));
+ table[i].addr =
cpu_to_le32(sg_dma_address(sg) & 0xffffffff);
- dst->table[i].addr_hi =
+ table[i].addr_hi =
cpu_to_le32((sg_dma_address(sg) >> 16) >> 16);
- dst->table[i].ctrl = SG_CF_64B | SG_CF_HOST;
}
- dst->table[--i].ctrl |= SG_CF_EOT;
}
- return 0;
+ return nseg;
}
static void stex_controller_info(struct st_hba *hba, struct st_ccb *ccb)
@@ -400,7 +465,7 @@ static void stex_controller_info(struct st_hba *hba, struct st_ccb *ccb)
size_t count = sizeof(struct st_frame);
p = hba->copy_buffer;
- count = scsi_sg_copy_to_buffer(ccb->cmd, p, count);
+ 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;
@@ -418,15 +483,13 @@ static void stex_controller_info(struct st_hba *hba, struct st_ccb *ccb)
p->subid =
hba->pdev->subsystem_vendor << 16 | hba->pdev->subsystem_device;
- count = scsi_sg_copy_from_buffer(ccb->cmd, p, count);
+ 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++;
@@ -436,13 +499,44 @@ stex_send_cmd(struct st_hba *hba, struct req_msg *req, u16 tag)
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)
{
/* Cheat: usually extracted from Inquiry data */
sdev->tagged_supported = 1;
- scsi_activate_tcq(sdev, ST_CMD_PER_LUN);
+ scsi_activate_tcq(sdev, sdev->host->can_queue);
return 0;
}
@@ -469,7 +563,7 @@ stex_queuecommand(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;
@@ -516,7 +610,8 @@ stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
case INQUIRY:
if (id != host->max_id - 1)
break;
- if (lun == 0 && (cmd->cmnd[1] & INQUIRY_EVPD) == 0) {
+ 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;
@@ -554,7 +649,7 @@ stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
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;
@@ -572,12 +667,13 @@ stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
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;
}
@@ -586,7 +682,7 @@ 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:
@@ -626,8 +722,6 @@ static void stex_scsi_done(struct st_ccb *ccb)
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,
@@ -637,17 +731,16 @@ static void stex_copy_data(struct st_ccb *ccb,
if (ccb->cmd == NULL)
return;
- count = scsi_sg_copy_from_buffer(ccb->cmd, resp->variable, count);
+ 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)
{
if (ccb->cmd->cmnd[0] == MGT_CMD &&
- resp->scsi_status != SAM_STAT_CHECK_CONDITION) {
+ 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)
@@ -658,12 +751,12 @@ 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;
@@ -693,13 +786,13 @@ static void stex_mu_intr(struct st_hba *hba, u32 doorbell)
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;
}
@@ -720,7 +813,7 @@ static void stex_mu_intr(struct st_hba *hba, u32 doorbell)
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))
@@ -728,17 +821,8 @@ static void stex_mu_intr(struct st_hba *hba, u32 doorbell)
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:
@@ -771,7 +855,103 @@ static irqreturn_t stex_intr(int irq, void *__hba)
return IRQ_RETVAL(handled);
}
-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;
+ int handled = 0;
+
+ 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);
+ handled = 1;
+ }
+
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+
+ return IRQ_RETVAL(handled);
+}
+
+static int stex_common_handshake(struct st_hba *hba)
{
void __iomem *base = hba->mmio_base;
struct handshake_frame *h;
@@ -800,26 +980,27 @@ static int stex_handshake(struct st_hba *hba)
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);
+ if (hba->extra_offset) {
+ h->extra_offset = cpu_to_le32(hba->extra_offset);
h->extra_size = cpu_to_le32(ST_ADDITIONAL_MEM);
} 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);
@@ -851,10 +1032,79 @@ static int stex_handshake(struct st_hba *hba)
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 = hba->scratch;
+ u32 data;
+ unsigned long before;
+ int ret = 0;
+
+ h = (struct handshake_frame *)(hba->alloc_rq(hba));
+ msg_h = (struct st_msg_header *)h - 1;
+ msg_h->handle = cpu_to_le64(hba->dma_handle);
+ msg_h->flag = SS_HEAD_HANDSHAKE;
+
+ 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;
+ h->scratch_size = cpu_to_le32((hba->sts_count+1)*sizeof(u32));
+
+ data = readl(base + YINT_EN);
+ data &= ~4;
+ writel(data, base + YINT_EN);
+ writel((hba->dma_handle >> 16) >> 16, base + YH2I_REQ_HI);
+ writel(hba->dma_handle, base + YH2I_REQ);
+
+ 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);
+ }
+
+ *scratch = 0;
+ msg_h->flag = 0;
+ return ret;
+}
+
+static int stex_handshake(struct st_hba *hba)
+{
+ int err;
+ unsigned long flags;
+
+ err = (hba->cardtype == st_yel) ?
+ stex_ss_handshake(hba) : stex_common_handshake(hba);
+ if (err == 0) {
+ 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;
+ hba->mu_status = MU_STATE_STARTED;
+ 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;
@@ -883,15 +1133,23 @@ static int stex_abort(struct scsi_cmnd *cmd)
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));
@@ -950,8 +1208,8 @@ static void stex_hard_reset(struct st_hba *hba)
static int stex_reset(struct scsi_cmnd *cmd)
{
struct st_hba *hba;
- unsigned long flags;
- unsigned long before;
+ void __iomem *base;
+ unsigned long flags, before;
hba = (struct st_hba *) &cmd->device->host->hostdata[0];
@@ -971,13 +1229,6 @@ static int stex_reset(struct scsi_cmnd *cmd)
pci_name(hba->pdev));
return FAILED;
}
- 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;
}
@@ -994,7 +1245,23 @@ static int stex_reset(struct scsi_cmnd *cmd)
msleep(1);
}
+ base = hba->mmio_base;
+ writel(0, base + IMR0);
+ readl(base + IMR0);
+ writel(0, base + OMR0);
+ readl(base + OMR0);
+ writel(0, base + IMR1);
+ readl(base + IMR1);
+ writel(0, base + OMR1);
+ readl(base + OMR1); /* flush */
+ 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;
hba->mu_status = MU_STATE_STARTED;
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
return SUCCESS;
}
@@ -1028,10 +1295,100 @@ static struct scsi_host_template driver_template = {
.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)
@@ -1047,11 +1404,48 @@ static int stex_set_dma_mask(struct pci_dev * pdev)
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);
@@ -1095,10 +1489,17 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
hba->cardtype = (unsigned int) id->driver_data;
- if (hba->cardtype == st_vsc && (pdev->subsystem_device & 1))
- hba->cardtype = st_vsc1;
- hba->dma_size = (hba->cardtype == st_vsc1 || hba->cardtype == st_seq) ?
- (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) {
@@ -1108,35 +1509,46 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto out_iounmap;
}
- hba->status_buffer =
- (struct status_msg *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);
- hba->copy_buffer = hba->dma_mem + MU_BUFFER_SIZE;
+ hba->ccb = kcalloc(ci->rq_count, sizeof(struct st_ccb), GFP_KERNEL);
+ if (!hba->ccb) {
+ err = -ENOMEM;
+ printk(KERN_ERR DRV_NAME "(%s): ccb alloc failed\n",
+ pci_name(pdev));
+ goto out_pci_free;
+ }
+
+ 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 = 256;
- host->max_id = 1 + 1;
- } else {
- /* st_vsc , st_vsc1 and st_seq */
- 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);
- 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_ccb_free;
}
err = stex_handshake(hba);
@@ -1164,7 +1576,9 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return 0;
out_free_irq:
- free_irq(pdev->irq, hba);
+ stex_free_irq(hba);
+out_ccb_free:
+ kfree(hba->ccb);
out_pci_free:
dma_free_coherent(&pdev->dev, hba->dma_size,
hba->dma_mem, hba->dma_handle);
@@ -1183,15 +1597,20 @@ out_disable:
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;
@@ -1206,27 +1625,31 @@ static void stex_hba_stop(struct st_hba *hba)
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);
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);
}
@@ -1255,27 +1678,6 @@ static void stex_shutdown(struct pci_dev *pdev)
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, PCI_ANY_ID, 0, 0, st_yosemite },
-
- /* st_seq */
- { 0x105a, 0x3360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_seq },
- { } /* terminate list */
-};
MODULE_DEVICE_TABLE(pci, stex_pci_tbl);
static struct pci_driver stex_pci_driver = {