ipmi: Some minor fixes

ipmi: Some minor fixes

[minyard]

Just some collected fixes for 3.14.  Nothing huge.

[PATCH 1/4] ipmi: remove deprecated IRQF_DISABLED

[minyard]

From: Michael Opdenacker <michael.opdenacker@free-electrons.com>

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
 drivers/char/ipmi/ipmi_si_intf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 15e4a60..68c5ef5 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -1358,7 +1358,7 @@ static int std_irq_setup(struct smi_info *info)
 	if (info->si_type == SI_BT) {
 		rv = request_irq(info->irq,
 				 si_bt_irq_handler,
-				 IRQF_SHARED | IRQF_DISABLED,
+				 IRQF_SHARED,
 				 DEVICE_NAME,
 				 info);
 		if (!rv)
@@ -1368,7 +1368,7 @@ static int std_irq_setup(struct smi_info *info)
 	} else
 		rv = request_irq(info->irq,
 				 si_irq_handler,
-				 IRQF_SHARED | IRQF_DISABLED,
+				 IRQF_SHARED,
 				 DEVICE_NAME,
 				 info);
 	if (rv) {
-- 
1.8.3.1

[PATCH 2/4] ipmi: use USEC_PER_SEC instead of 1000000 for more meaningful

[minyard]

From: Xie XiuQi <xiexiuqi@huawei.com>

Use USEC_PER_SEC instead of 1000000, that making the later bugfix
more clearly.

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
 drivers/char/ipmi/ipmi_bt_sm.c   | 8 ++++----
 drivers/char/ipmi/ipmi_kcs_sm.c  | 4 ++--
 drivers/char/ipmi/ipmi_smic_sm.c | 2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_bt_sm.c b/drivers/char/ipmi/ipmi_bt_sm.c
index a22a7a5..f5e4cd7 100644
--- a/drivers/char/ipmi/ipmi_bt_sm.c
+++ b/drivers/char/ipmi/ipmi_bt_sm.c
@@ -201,7 +201,7 @@ static unsigned int bt_init_data(struct si_sm_data *bt, struct si_sm_io *io)
 	}
 	bt->state = BT_STATE_IDLE;	/* start here */
 	bt->complete = BT_STATE_IDLE;	/* end here */
-	bt->BT_CAP_req2rsp = BT_NORMAL_TIMEOUT * 1000000;
+	bt->BT_CAP_req2rsp = BT_NORMAL_TIMEOUT * USEC_PER_SEC;
 	bt->BT_CAP_retries = BT_NORMAL_RETRY_LIMIT;
 	/* BT_CAP_outreqs == zero is a flag to read BT Capabilities */
 	return 3; /* We claim 3 bytes of space; ought to check SPMI table */
@@ -613,7 +613,7 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
 		HOST2BMC(42);		/* Sequence number */
 		HOST2BMC(3);		/* Cmd == Soft reset */
 		BT_CONTROL(BT_H2B_ATN);
-		bt->timeout = BT_RESET_DELAY * 1000000;
+		bt->timeout = BT_RESET_DELAY * USEC_PER_SEC;
 		BT_STATE_CHANGE(BT_STATE_RESET3,
 				SI_SM_CALL_WITH_DELAY);
 
@@ -651,14 +651,14 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
 		bt_init_data(bt, bt->io);
 		if ((i == 8) && !BT_CAP[2]) {
 			bt->BT_CAP_outreqs = BT_CAP[3];
-			bt->BT_CAP_req2rsp = BT_CAP[6] * 1000000;
+			bt->BT_CAP_req2rsp = BT_CAP[6] * USEC_PER_SEC;
 			bt->BT_CAP_retries = BT_CAP[7];
 		} else
 			printk(KERN_WARNING "IPMI BT: using default values\n");
 		if (!bt->BT_CAP_outreqs)
 			bt->BT_CAP_outreqs = 1;
 		printk(KERN_WARNING "IPMI BT: req2rsp=%ld secs retries=%d\n",
-			bt->BT_CAP_req2rsp / 1000000L, bt->BT_CAP_retries);
+			bt->BT_CAP_req2rsp / USEC_PER_SEC, bt->BT_CAP_retries);
 		bt->timeout = bt->BT_CAP_req2rsp;
 		return SI_SM_CALL_WITHOUT_DELAY;
 
diff --git a/drivers/char/ipmi/ipmi_kcs_sm.c b/drivers/char/ipmi/ipmi_kcs_sm.c
index e53fc24..6a4bdc1 100644
--- a/drivers/char/ipmi/ipmi_kcs_sm.c
+++ b/drivers/char/ipmi/ipmi_kcs_sm.c
@@ -118,8 +118,8 @@ enum kcs_states {
 #define MAX_KCS_WRITE_SIZE IPMI_MAX_MSG_LENGTH
 
 /* Timeouts in microseconds. */
-#define IBF_RETRY_TIMEOUT 5000000
-#define OBF_RETRY_TIMEOUT 5000000
+#define IBF_RETRY_TIMEOUT (5*USEC_PER_SEC)
+#define OBF_RETRY_TIMEOUT (5*USEC_PER_SEC)
 #define MAX_ERROR_RETRIES 10
 #define ERROR0_OBF_WAIT_JIFFIES (2*HZ)
 
diff --git a/drivers/char/ipmi/ipmi_smic_sm.c b/drivers/char/ipmi/ipmi_smic_sm.c
index faed929..c8e77af 100644
--- a/drivers/char/ipmi/ipmi_smic_sm.c
+++ b/drivers/char/ipmi/ipmi_smic_sm.c
@@ -80,7 +80,7 @@ enum smic_states {
 #define SMIC_MAX_ERROR_RETRIES 3
 
 /* Timeouts in microseconds. */
-#define SMIC_RETRY_TIMEOUT 2000000
+#define SMIC_RETRY_TIMEOUT (2*USEC_PER_SEC)
 
 /* SMIC Flags Register Bits */
 #define SMIC_RX_DATA_READY	0x80
-- 
1.8.3.1

[PATCH 3/4] ipmi: fix timeout calculation when bmc is disconnected

[minyard]

From: Xie XiuQi <xiexiuqi@huawei.com>

Loading ipmi_si module while bmc is disconnected, we found the timeout
is longer than 5 secs. Actually it takes about 3 mins and 20 secs.(HZ=250)

error message as below:
Dec 12 19:08:59 linux kernel: IPMI BT: timeout in RD_WAIT [ ] 1 retries left
Dec 12 19:08:59 linux kernel: BT: write 4 bytes seq=0x01 03 18 00 01
[...]
Dec 12 19:12:19 linux kernel: IPMI BT: timeout in RD_WAIT [ ]
Dec 12 19:12:19 linux kernel: failed 2 retries, sending error response
Dec 12 19:12:19 linux kernel: IPMI: BT reset (takes 5 secs)
Dec 12 19:12:19 linux kernel: IPMI BT: flag reset [ ]

Function wait_for_msg_done() use schedule_timeout_uninterruptible(1) to
sleep 1 tick, so we should subtract jiffies_to_usecs(1) instead of 100
usecs from timeout.

Reported-by: Hu Shiyuan <hushiyuan@huawei.com>
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
 drivers/char/ipmi/ipmi_si_intf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 68c5ef5..a5e048f 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -2773,7 +2773,7 @@ static int wait_for_msg_done(struct smi_info *smi_info)
 		    smi_result == SI_SM_CALL_WITH_TICK_DELAY) {
 			schedule_timeout_uninterruptible(1);
 			smi_result = smi_info->handlers->event(
-				smi_info->si_sm, 100);
+				smi_info->si_sm, jiffies_to_usecs(1));
 		} else if (smi_result == SI_SM_CALL_WITHOUT_DELAY) {
 			smi_result = smi_info->handlers->event(
 				smi_info->si_sm, 0);
-- 
1.8.3.1

[PATCH 4/4] ipmi: Cleanup error return

[minyard]

From: Corey Minyard <cminyard@mvista.com>

Return proper errors for a lot of IPMI failure cases.  Also call
pci_disable_device when IPMI PCI devices are removed.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
 drivers/char/ipmi/ipmi_si_intf.c | 44 ++++++++++++++++++++++++++--------------
 1 file changed, 29 insertions(+), 15 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index a5e048f..671c385 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -1849,11 +1849,15 @@ static int hotmod_handler(const char *val, struct kernel_param *kp)
 				info->irq_setup = std_irq_setup;
 			info->slave_addr = ipmb;
 
-			if (!add_smi(info)) {
-				if (try_smi_init(info))
-					cleanup_one_si(info);
-			} else {
+			rv = add_smi(info);
+			if (rv) {
 				kfree(info);
+				goto out;
+			}
+			rv = try_smi_init(info);
+			if (rv) {
+				cleanup_one_si(info);
+				goto out;
 			}
 		} else {
 			/* remove */
@@ -2067,6 +2071,7 @@ struct SPMITable {
 static int try_init_spmi(struct SPMITable *spmi)
 {
 	struct smi_info  *info;
+	int rv;
 
 	if (spmi->IPMIlegacy != 1) {
 		printk(KERN_INFO PFX "Bad SPMI legacy %d\n", spmi->IPMIlegacy);
@@ -2141,10 +2146,11 @@ static int try_init_spmi(struct SPMITable *spmi)
 		 info->io.addr_data, info->io.regsize, info->io.regspacing,
 		 info->irq);
 
-	if (add_smi(info))
+	rv = add_smi(info);
+	if (rv)
 		kfree(info);
 
-	return 0;
+	return rv;
 }
 
 static void spmi_find_bmc(void)
@@ -2178,6 +2184,7 @@ static int ipmi_pnp_probe(struct pnp_dev *dev,
 	acpi_handle handle;
 	acpi_status status;
 	unsigned long long tmp;
+	int rv;
 
 	acpi_dev = pnp_acpi_device(dev);
 	if (!acpi_dev)
@@ -2259,10 +2266,11 @@ static int ipmi_pnp_probe(struct pnp_dev *dev,
 		 res, info->io.regsize, info->io.regspacing,
 		 info->irq);
 
-	if (add_smi(info))
-		goto err_free;
+	rv = add_smi(info);
+	if (rv)
+		kfree(info);
 
-	return 0;
+	return rv;
 
 err_free:
 	kfree(info);
@@ -2566,16 +2574,20 @@ static int ipmi_pci_probe(struct pci_dev *pdev,
 		&pdev->resource[0], info->io.regsize, info->io.regspacing,
 		info->irq);
 
-	if (add_smi(info))
+	rv = add_smi(info);
+	if (rv) {
 		kfree(info);
+		pci_disable_device(pdev);
+	}
 
-	return 0;
+	return rv;
 }
 
 static void ipmi_pci_remove(struct pci_dev *pdev)
 {
 	struct smi_info *info = pci_get_drvdata(pdev);
 	cleanup_one_si(info);
+	pci_disable_device(pdev);
 }
 
 static struct pci_device_id ipmi_pci_devices[] = {
@@ -2670,9 +2682,10 @@ static int ipmi_probe(struct platform_device *dev)
 
 	dev_set_drvdata(&dev->dev, info);
 
-	if (add_smi(info)) {
+	ret = add_smi(info);
+	if (ret) {
 		kfree(info);
-		return -EBUSY;
+		return ret;
 	}
 #endif
 	return 0;
@@ -2736,9 +2749,10 @@ static int ipmi_parisc_probe(struct parisc_device *dev)
 
 	dev_set_drvdata(&dev->dev, info);
 
-	if (add_smi(info)) {
+	rv = add_smi(info);
+	if (rv) {
 		kfree(info);
-		return -EBUSY;
+		return rv;
 	}
 
 	return 0;
-- 
1.8.3.1

IPMI: Some minor fixes

[minyard]

Remove some bogus docs, Fix ACPI/IPMI interactions, fix some warnings,
and add register spacing detection for PCI interfaces.