From: Paul <paul....@tw.promise.com>
1.In suspend, add p3 type as yel
2.For s4, use msi_lock to prevent msi reg set again
3.When send shutdown mic, add p3 type as yel
Signed-off-by: Paul <paul....@tw.promise.com>
---
drivers/scsi/stex.c | 35 +++++++++++++++++++++--------------
1 file changed, 21 insertions(+), 14 deletions(-)
diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index 4d74905..b18c434 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -347,6 +347,7 @@ struct st_hba {
u16 rq_size;
u16 sts_count;
u8 supports_pm;
+ int msi_lock;
};
struct st_card_info {
@@ -1165,7 +1166,11 @@ static int stex_ss_handshake(struct st_hba *hba)
data &= ~(1 << 0);
data &= ~(1 << 2);
writel(data, base + YINT_EN);
- writel((1 << 6), base + YH2I_INT);
+ if (hba->msi_lock == 0) {
+ /* P3 MSI Register cannot access twice */
+ writel((1 << 6), base + YH2I_INT);
+ hba->msi_lock = 1;
+ }
writel((hba->dma_handle >> 16) >> 16, base + YH2I_REQ_HI);
writel(hba->dma_handle, base + YH2I_REQ);
}
@@ -1771,6 +1776,7 @@ static int stex_probe(struct pci_dev *pdev, const struct
pci_device_id *id)
hba->map_sg = ci->map_sg;
hba->send = ci->send;
hba->mu_status = MU_STATE_STARTING;
+ hba->msi_lock = 0;
if (hba->cardtype == st_yel || hba->cardtype == st_P3)
host->sg_tablesize = 38;
@@ -1854,28 +1860,29 @@ static void stex_hba_stop(struct st_hba *hba, int
st_sleep_mic)
spin_lock_irqsave(hba->host->host_lock, flags);
- if (hba->cardtype == st_yel && hba->supports_pm == 1)
- {
- if(st_sleep_mic == ST_NOTHANDLED)
- {
+ if ((hba->cardtype == st_yel && hba->supports_pm == 1)
+ || (hba->cardtype == st_P3 && hba->supports_pm == 1)) {
+ if (st_sleep_mic == ST_NOTHANDLED) {
spin_unlock_irqrestore(hba->host->host_lock, flags);
return;
}
}
req = hba->alloc_rq(hba);
- if (hba->cardtype == st_yel) {
+ if (hba->cardtype == st_yel || hba->cardtype == st_P3) {
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 || hba->cardtype == st_yel)
+ if ((hba->cardtype == st_yosemite || hba->cardtype == st_yel
+ || hba->cardtype == st_P3)
&& st_sleep_mic == ST_IGNORED) {
req->cdb[0] = MGT_CMD;
req->cdb[1] = MGT_CMD_SIGNATURE;
req->cdb[2] = CTLR_CONFIG_CMD;
req->cdb[3] = CTLR_SHUTDOWN;
- } else if (hba->cardtype == st_yel && st_sleep_mic != ST_IGNORED) {
+ } else if ((hba->cardtype == st_yel || hba->cardtype == st_P3)
+ && st_sleep_mic != ST_IGNORED) {
req->cdb[0] = MGT_CMD;
req->cdb[1] = MGT_CMD_SIGNATURE;
req->cdb[2] = CTLR_CONFIG_CMD;
@@ -1886,16 +1893,14 @@ static void stex_hba_stop(struct st_hba *hba, int
st_sleep_mic)
req->cdb[1] = CTLR_POWER_STATE_CHANGE;
req->cdb[2] = CTLR_POWER_SAVING;
}
-
hba->ccb[tag].cmd = NULL;
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->send(hba, req, tag);
- spin_unlock_irqrestore(hba->host->host_lock, flags);
+ 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)) {
@@ -1951,12 +1956,13 @@ static void stex_shutdown(struct pci_dev *pdev)
stex_hba_stop(hba, ST_S5);
}
-static int stex_choice_sleep_mic(pm_message_t state)
+static int stex_choice_sleep_mic(struct st_hba *hba, pm_message_t state)
{
switch (state.event) {
case PM_EVENT_SUSPEND:
return ST_S3;
case PM_EVENT_HIBERNATE:
+ hba->msi_lock = 0;
return ST_S4;
default:
return ST_NOTHANDLED;
@@ -1967,8 +1973,9 @@ static int stex_suspend(struct pci_dev *pdev,
pm_message_t state)
{
struct st_hba *hba = pci_get_drvdata(pdev);
- if (hba->cardtype == st_yel && hba->supports_pm == 1)
- stex_hba_stop(hba, stex_choice_sleep_mic(state));
+ if ((hba->cardtype == st_yel || hba->cardtype == st_P3)
+ && hba->supports_pm == 1)
+ stex_hba_stop(hba, stex_choice_sleep_mic(hba, state));
else
stex_hba_stop(hba, ST_IGNORED);
return 0;
--
1.9.1
