[PATCH 0/7] smartpqi updates

[PATCH 0/7] smartpqi updates

[Don Brace]

These patches are based on Linus's tree

The changes are:

 - smartpqi-add-pqi-reset-quiesce-support
   - allow driver to confirm completion of a reset.
 - smartpqi-enhance-bmic-cache-flush
   - can now distinguish between shutdown and power
     management operation.
 - smartpqi-update-pqi-passthru-ioctl
   - update DMA direction
 - smartpqi-cleanup-doorbell-register-usage
   - change how sis mode is re-enabled
 - smartpqi-update-kexec-power-down-support
   - reset controller on shutdown
 - smartpqi-add-in-new-controller-ids
   - update for latest hw
 - smartpqi-change-driver-version-to-1.1.2-125

---

Kevin Barnett (7):
      smartpqi: add pqi reset quiesce support
      smartpqi: enhance BMIC cache flush
      smartpqi: update pqi passthru ioctl
      smartpqi: cleanup doorbell register usage.
      smartpqi: update kexec and power down support
      smartpqi: add in new controller ids
      smartpqi: change driver version to 1.1.2-125


 drivers/scsi/smartpqi/smartpqi.h      |   44 ++++++++++
 drivers/scsi/smartpqi/smartpqi_init.c |  145 ++++++++++++++++++++-------------
 drivers/scsi/smartpqi/smartpqi_sis.c  |  111 ++++++-------------------
 drivers/scsi/smartpqi/smartpqi_sis.h  |    4 -
 4 files changed, 159 insertions(+), 145 deletions(-)

--
Signature

[PATCH 1/7] smartpqi: add pqi reset quiesce support

[Don Brace]

From: Kevin Barnett <kevin.barnett@microseim.com>

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
---
 drivers/scsi/smartpqi/smartpqi.h      |   23 +++++++++++++
 drivers/scsi/smartpqi/smartpqi_init.c |   58 ++++++++++++++++++++++++++-------
 drivers/scsi/smartpqi/smartpqi_sis.c  |   30 ++++++++++++++++-
 drivers/scsi/smartpqi/smartpqi_sis.h  |    1 +
 4 files changed, 98 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h
index e164ffa..6dd0449 100644
--- a/drivers/scsi/smartpqi/smartpqi.h
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -688,6 +688,28 @@ struct pqi_config_table_heartbeat {
 	__le32	heartbeat_counter;
 };
 
+union pqi_reset_register {
+	struct {
+		u32	reset_type : 3;
+		u32	reserved : 2;
+		u32	reset_action : 3;
+		u32	hold_in_pd1 : 1;
+		u32	reserved2 : 23;
+	} bits;
+	u32	all_bits;
+};
+
+#define PQI_RESET_ACTION_RESET		0x1
+
+#define PQI_RESET_TYPE_NO_RESET		0x0
+#define PQI_RESET_TYPE_SOFT_RESET	0x1
+#define PQI_RESET_TYPE_FIRM_RESET	0x2
+#define PQI_RESET_TYPE_HARD_RESET	0x3
+
+#define PQI_RESET_ACTION_COMPLETED	0x2
+
+#define PQI_RESET_POLL_INTERVAL_MSECS	100
+
 #define PQI_MAX_OUTSTANDING_REQUESTS		((u32)~0)
 #define PQI_MAX_OUTSTANDING_REQUESTS_KDUMP	32
 #define PQI_MAX_TRANSFER_SIZE			(1024U * 1024U)
@@ -995,6 +1017,7 @@ struct pqi_ctrl_info {
 	u8		inbound_spanning_supported : 1;
 	u8		outbound_spanning_supported : 1;
 	u8		pqi_mode_enabled : 1;
+	u8		pqi_reset_quiesce_supported : 1;
 
 	struct list_head scsi_device_list;
 	spinlock_t	scsi_device_list_lock;
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index cb8f886..ffdc32b 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -5889,28 +5889,62 @@ static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info)
 	scsi_host_put(shost);
 }
 
-#define PQI_RESET_ACTION_RESET		0x1
+static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info)
+{
+	int rc = 0;
+	struct pqi_device_registers __iomem *pqi_registers;
+	unsigned long timeout;
+	unsigned int timeout_msecs;
+	union pqi_reset_register reset_reg;
+
+	pqi_registers = ctrl_info->pqi_registers;
+	timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100;
+	timeout = msecs_to_jiffies(timeout_msecs) + jiffies;
+
+	while (1) {
+		msleep(PQI_RESET_POLL_INTERVAL_MSECS);
+		reset_reg.all_bits = readl(&pqi_registers->device_reset);
+		if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED)
+			break;
+		pqi_check_ctrl_health(ctrl_info);
+		if (pqi_ctrl_offline(ctrl_info)) {
+			rc = -ENXIO;
+			break;
+		}
+		if (time_after(jiffies, timeout)) {
+			rc = -ETIMEDOUT;
+			break;
+		}
+	}
 
-#define PQI_RESET_TYPE_NO_RESET		0x0
-#define PQI_RESET_TYPE_SOFT_RESET	0x1
-#define PQI_RESET_TYPE_FIRM_RESET	0x2
-#define PQI_RESET_TYPE_HARD_RESET	0x3
+	return rc;
+}
 
 static int pqi_reset(struct pqi_ctrl_info *ctrl_info)
 {
 	int rc;
-	u32 reset_params;
+	union pqi_reset_register reset_reg;
 
-	reset_params = (PQI_RESET_ACTION_RESET << 5) |
-		PQI_RESET_TYPE_HARD_RESET;
+	if (ctrl_info->pqi_reset_quiesce_supported) {
+		rc = sis_pqi_reset_quiesce(ctrl_info);
+		if (rc) {
+			dev_err(&ctrl_info->pci_dev->dev,
+				"PQI reset failed during quiesce with error %d\n",
+				rc);
+			return rc;
+		}
+	}
 
-	writel(reset_params,
-		&ctrl_info->pqi_registers->device_reset);
+	reset_reg.all_bits = 0;
+	reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET;
+	reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET;
 
-	rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
+	writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset);
+
+	rc = pqi_wait_for_pqi_reset_completion(ctrl_info);
 	if (rc)
 		dev_err(&ctrl_info->pci_dev->dev,
-			"PQI reset failed\n");
+			"PQI reset failed with error %d\n", rc);
 
 	return rc;
 }
diff --git a/drivers/scsi/smartpqi/smartpqi_sis.c b/drivers/scsi/smartpqi/smartpqi_sis.c
index e55dfcf..9abbace 100644
--- a/drivers/scsi/smartpqi/smartpqi_sis.c
+++ b/drivers/scsi/smartpqi/smartpqi_sis.c
@@ -36,6 +36,7 @@
 #define SIS_ENABLE_INTX				0x80
 #define SIS_SOFT_RESET				0x100
 #define SIS_TRIGGER_SHUTDOWN			0x800000
+#define SIS_PQI_RESET_QUIESCE			0x1000000
 #define SIS_CMD_READY				0x200
 #define SIS_CMD_COMPLETE			0x1000
 #define SIS_CLEAR_CTRL_TO_HOST_DOORBELL		0x1000
@@ -47,6 +48,7 @@
 #define SIS_EXTENDED_PROPERTIES_SUPPORTED	0x800000
 #define SIS_SMARTARRAY_FEATURES_SUPPORTED	0x2
 #define SIS_PQI_MODE_SUPPORTED			0x4
+#define SIS_PQI_RESET_QUIESCE_SUPPORTED		0x8
 #define SIS_REQUIRED_EXTENDED_PROPERTIES	\
 	(SIS_SMARTARRAY_FEATURES_SUPPORTED | SIS_PQI_MODE_SUPPORTED)
 
@@ -258,6 +260,9 @@ int sis_get_ctrl_properties(struct pqi_ctrl_info *ctrl_info)
 		SIS_REQUIRED_EXTENDED_PROPERTIES)
 		return -ENODEV;
 
+	if (extended_properties & SIS_PQI_RESET_QUIESCE_SUPPORTED)
+		ctrl_info->pqi_reset_quiesce_supported = true;
+
 	return 0;
 }
 
@@ -336,9 +341,10 @@ int sis_init_base_struct_addr(struct pqi_ctrl_info *ctrl_info)
 
 #define SIS_DOORBELL_BIT_CLEAR_TIMEOUT_SECS	30
 
-static void sis_wait_for_doorbell_bit_to_clear(
+static int sis_wait_for_doorbell_bit_to_clear(
 	struct pqi_ctrl_info *ctrl_info, u32 bit)
 {
+	int rc = 0;
 	u32 doorbell_register;
 	unsigned long timeout;
 
@@ -350,16 +356,21 @@ static void sis_wait_for_doorbell_bit_to_clear(
 		if ((doorbell_register & bit) == 0)
 			break;
 		if (readl(&ctrl_info->registers->sis_firmware_status) &
-			SIS_CTRL_KERNEL_PANIC)
+			SIS_CTRL_KERNEL_PANIC) {
+			rc = -ENODEV;
 			break;
+		}
 		if (time_after(jiffies, timeout)) {
 			dev_err(&ctrl_info->pci_dev->dev,
 				"doorbell register bit 0x%x not cleared\n",
 				bit);
+			rc = -ETIMEDOUT;
 			break;
 		}
 		usleep_range(1000, 2000);
 	}
+
+	return rc;
 }
 
 /* Enable MSI-X interrupts on the controller. */
@@ -434,6 +445,21 @@ void sis_shutdown_ctrl(struct pqi_ctrl_info *ctrl_info)
 		&ctrl_info->registers->sis_host_to_ctrl_doorbell);
 }
 
+int sis_pqi_reset_quiesce(struct pqi_ctrl_info *ctrl_info)
+{
+	u32 doorbell_register;
+
+	doorbell_register =
+		readl(&ctrl_info->registers->sis_host_to_ctrl_doorbell);
+	doorbell_register |= SIS_PQI_RESET_QUIESCE;
+
+	writel(doorbell_register,
+		&ctrl_info->registers->sis_host_to_ctrl_doorbell);
+
+	return sis_wait_for_doorbell_bit_to_clear(ctrl_info,
+		SIS_PQI_RESET_QUIESCE);
+}
+
 #define SIS_MODE_READY_TIMEOUT_SECS	30
 
 int sis_reenable_sis_mode(struct pqi_ctrl_info *ctrl_info)
diff --git a/drivers/scsi/smartpqi/smartpqi_sis.h b/drivers/scsi/smartpqi/smartpqi_sis.h
index 983184b..394b16e 100644
--- a/drivers/scsi/smartpqi/smartpqi_sis.h
+++ b/drivers/scsi/smartpqi/smartpqi_sis.h
@@ -32,6 +32,7 @@ void sis_enable_intx(struct pqi_ctrl_info *ctrl_info);
 void sis_disable_intx(struct pqi_ctrl_info *ctrl_info);
 void sis_soft_reset(struct pqi_ctrl_info *ctrl_info);
 void sis_shutdown_ctrl(struct pqi_ctrl_info *ctrl_info);
+int sis_pqi_reset_quiesce(struct pqi_ctrl_info *ctrl_info);
 int sis_reenable_sis_mode(struct pqi_ctrl_info *ctrl_info);
 void sis_write_driver_scratch(struct pqi_ctrl_info *ctrl_info, u32 value);
 u32 sis_read_driver_scratch(struct pqi_ctrl_info *ctrl_info);

Re: [PATCH 1/7] smartpqi: add pqi reset quiesce support

[James Bottomley]

On Thu, 2017-08-10 at 13:46 -0500, Don Brace wrote:
> From: Kevin Barnett <kevin.barnett@microseim.com>

To misspell someone else's company name could be considered unfortunate
... to misspell your own looks like carelessness.

You've done this twice, by the way.

James

> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
> Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
> Signed-off-by: Don Brace <don.brace@microsemi.com>

RE: [PATCH 1/7] smartpqi: add pqi reset quiesce support

[Don Brace]

> -----Original Message-----
> From: James Bottomley [mailto:jejb@linux.vnet.ibm.com]
> Sent: Wednesday, August 16, 2017 10:44 PM
> To: Don Brace <don.brace@microsemi.com>; joseph.szczypek@hpe.com;
> Gerry Morong <gerry.morong@microsemi.com>; John Hall
> <John.Hall@microsemi.com>; Kevin Barnett
> <kevin.barnett@microsemi.com>; Mahesh Rajashekhara
> <mahesh.rajashekhara@microsemi.com>; Bader Ali - Saleh
> <bader.alisaleh@microsemi.com>; hch@infradead.org; Scott Teel
> <scott.teel@microsemi.com>; Viswas G <viswas.g@microsemi.com>; Justin
> Lindley <justin.lindley@microsemi.com>; Scott Benesh
> <scott.benesh@microsemi.com>; POSWALD@suse.com
> Cc: linux-scsi@vger.kernel.org
> Subject: Re: [PATCH 1/7] smartpqi: add pqi reset quiesce support
> 
> EXTERNAL EMAIL
> 
> 
> On Thu, 2017-08-10 at 13:46 -0500, Don Brace wrote:
> > From: Kevin Barnett <kevin.barnett@microseim.com>
> 
> To misspell someone else's company name could be considered unfortunate
> ... to misspell your own looks like carelessness.
> 
> You've done this twice, by the way.
> 
> James
> 
> > Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
> > Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
> > Signed-off-by: Don Brace <don.brace@microsemi.com>

That's my bad. I'll be more careful in the future.

Thanks,
Don Brace

ESC - Smart Storage
Microsemi Corporation

[PATCH 2/7] smartpqi: enhance BMIC cache flush

[Don Brace]

From: Kevin Barnett <kevin.barnett@microseim.com>

 - distinguish between shutdown and non-shutdown.

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
---
 drivers/scsi/smartpqi/smartpqi.h      |   21 +++++++++++++++++++--
 drivers/scsi/smartpqi/smartpqi_init.c |   27 ++++++++++++++-------------
 2 files changed, 33 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h
index 6dd0449..dc3a054 100644
--- a/drivers/scsi/smartpqi/smartpqi.h
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -1079,9 +1079,9 @@ enum pqi_ctrl_mode {
 #define BMIC_SENSE_CONTROLLER_PARAMETERS	0x64
 #define BMIC_SENSE_SUBSYSTEM_INFORMATION	0x66
 #define BMIC_WRITE_HOST_WELLNESS		0xa5
-#define BMIC_CACHE_FLUSH			0xc2
+#define BMIC_FLUSH_CACHE			0xc2
 
-#define SA_CACHE_FLUSH				0x1
+#define SA_FLUSH_CACHE				0x1
 
 #define MASKED_DEVICE(lunid)			((lunid)[3] & 0xc0)
 #define CISS_GET_LEVEL_2_BUS(lunid)		((lunid)[7] & 0x3f)
@@ -1187,6 +1187,23 @@ struct bmic_identify_physical_device {
 	u8	padding_to_multiple_of_512[9];
 };
 
+struct bmic_flush_cache {
+	u8	disable_flag;
+	u8	system_power_action;
+	u8	ndu_flush;
+	u8	shutdown_event;
+	u8	reserved[28];
+};
+
+/* for shutdown_event member of struct bmic_flush_cache */
+enum bmic_flush_cache_shutdown_event {
+	NONE_CACHE_FLUSH_ONLY = 0,
+	SHUTDOWN = 1,
+	HIBERNATE = 2,
+	SUSPEND = 3,
+	RESTART = 4
+};
+
 #pragma pack()
 
 int pqi_add_sas_host(struct Scsi_Host *shost, struct pqi_ctrl_info *ctrl_info);
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index ffdc32b..b36d338 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -431,10 +431,10 @@ static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info,
 		cdb[1] = CISS_GET_RAID_MAP;
 		put_unaligned_be32(buffer_length, &cdb[6]);
 		break;
-	case SA_CACHE_FLUSH:
+	case SA_FLUSH_CACHE:
 		request->data_direction = SOP_WRITE_FLAG;
 		cdb[0] = BMIC_WRITE;
-		cdb[6] = BMIC_CACHE_FLUSH;
+		cdb[6] = BMIC_FLUSH_CACHE;
 		put_unaligned_be16(buffer_length, &cdb[7]);
 		break;
 	case BMIC_IDENTIFY_CONTROLLER:
@@ -585,14 +585,13 @@ static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info,
 	return rc;
 }
 
-#define SA_CACHE_FLUSH_BUFFER_LENGTH	4
-
-static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info)
+static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info,
+	enum bmic_flush_cache_shutdown_event shutdown_event)
 {
 	int rc;
 	struct pqi_raid_path_request request;
 	int pci_direction;
-	u8 *buffer;
+	struct bmic_flush_cache *flush_cache;
 
 	/*
 	 * Don't bother trying to flush the cache if the controller is
@@ -601,13 +600,15 @@ static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info)
 	if (pqi_ctrl_offline(ctrl_info))
 		return -ENXIO;
 
-	buffer = kzalloc(SA_CACHE_FLUSH_BUFFER_LENGTH, GFP_KERNEL);
-	if (!buffer)
+	flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL);
+	if (!flush_cache)
 		return -ENOMEM;
 
+	flush_cache->shutdown_event = shutdown_event;
+
 	rc = pqi_build_raid_path_request(ctrl_info, &request,
-		SA_CACHE_FLUSH, RAID_CTLR_LUNID, buffer,
-		SA_CACHE_FLUSH_BUFFER_LENGTH, 0, &pci_direction);
+		SA_FLUSH_CACHE, RAID_CTLR_LUNID, flush_cache,
+		sizeof(*flush_cache), 0, &pci_direction);
 	if (rc)
 		goto out;
 
@@ -618,7 +619,7 @@ static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info)
 		pci_direction);
 
 out:
-	kfree(buffer);
+	kfree(flush_cache);
 
 	return rc;
 }
@@ -6693,7 +6694,7 @@ static void pqi_shutdown(struct pci_dev *pci_dev)
 	 * Write all data in the controller's battery-backed cache to
 	 * storage.
 	 */
-	rc = pqi_flush_cache(ctrl_info);
+	rc = pqi_flush_cache(ctrl_info, SHUTDOWN);
 	if (rc == 0)
 		return;
 
@@ -6737,7 +6738,7 @@ static __maybe_unused int pqi_suspend(struct pci_dev *pci_dev, pm_message_t stat
 	pqi_cancel_rescan_worker(ctrl_info);
 	pqi_wait_until_scan_finished(ctrl_info);
 	pqi_wait_until_lun_reset_finished(ctrl_info);
-	pqi_flush_cache(ctrl_info);
+	pqi_flush_cache(ctrl_info, SUSPEND);
 	pqi_ctrl_block_requests(ctrl_info);
 	pqi_ctrl_wait_until_quiesced(ctrl_info);
 	pqi_wait_until_inbound_queues_empty(ctrl_info);

[PATCH 3/7] smartpqi: update pqi passthru ioctl

[Don Brace]

From: Kevin Barnett <kevin.barnett@microsemi.com>

 - make pass-thru requests bi-directional

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
---
 drivers/scsi/smartpqi/smartpqi_init.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index b36d338..3b05f28 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -5499,6 +5499,7 @@ static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
 	case XFER_NONE:
 	case XFER_WRITE:
 	case XFER_READ:
+	case XFER_READ | XFER_WRITE:
 		break;
 	default:
 		return -EINVAL;
@@ -5539,6 +5540,9 @@ static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
 	case XFER_READ:
 		request.data_direction = SOP_READ_FLAG;
 		break;
+	case XFER_READ | XFER_WRITE:
+		request.data_direction = SOP_BIDIRECTIONAL;
+		break;
 	}
 
 	request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;

[PATCH 4/7] smartpqi: cleanup doorbell register usage.

[Don Brace]

From: Kevin Barnett <kevin.barnett@microsemi.com>

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
---
 drivers/scsi/smartpqi/smartpqi_init.c |   11 ++-
 drivers/scsi/smartpqi/smartpqi_sis.c  |  105 +++------------------------------
 drivers/scsi/smartpqi/smartpqi_sis.h  |    3 -
 3 files changed, 17 insertions(+), 102 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 3b05f28..70b1f97 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -3008,11 +3008,9 @@ static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info,
 			break;
 		case IRQ_MODE_INTX:
 			pqi_configure_legacy_intx(ctrl_info, true);
-			sis_disable_msix(ctrl_info);
 			sis_enable_intx(ctrl_info);
 			break;
 		case IRQ_MODE_NONE:
-			sis_disable_msix(ctrl_info);
 			break;
 		}
 		break;
@@ -3020,14 +3018,12 @@ static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info,
 		switch (new_mode) {
 		case IRQ_MODE_MSIX:
 			pqi_configure_legacy_intx(ctrl_info, false);
-			sis_disable_intx(ctrl_info);
 			sis_enable_msix(ctrl_info);
 			break;
 		case IRQ_MODE_INTX:
 			break;
 		case IRQ_MODE_NONE:
 			pqi_configure_legacy_intx(ctrl_info, false);
-			sis_disable_intx(ctrl_info);
 			break;
 		}
 		break;
@@ -6046,7 +6042,12 @@ static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info)
 	rc = pqi_reset(ctrl_info);
 	if (rc)
 		return rc;
-	sis_reenable_sis_mode(ctrl_info);
+	rc = sis_reenable_sis_mode(ctrl_info);
+	if (rc) {
+		dev_err(&ctrl_info->pci_dev->dev,
+			"re-enabling SIS mode failed with error %d\n", rc);
+		return rc;
+	}
 	pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
 
 	return 0;
diff --git a/drivers/scsi/smartpqi/smartpqi_sis.c b/drivers/scsi/smartpqi/smartpqi_sis.c
index 9abbace..5141bd4 100644
--- a/drivers/scsi/smartpqi/smartpqi_sis.c
+++ b/drivers/scsi/smartpqi/smartpqi_sis.c
@@ -34,12 +34,13 @@
 #define SIS_REENABLE_SIS_MODE			0x1
 #define SIS_ENABLE_MSIX				0x40
 #define SIS_ENABLE_INTX				0x80
-#define SIS_SOFT_RESET				0x100
+#define SIS_CMD_READY				0x200
 #define SIS_TRIGGER_SHUTDOWN			0x800000
 #define SIS_PQI_RESET_QUIESCE			0x1000000
-#define SIS_CMD_READY				0x200
+
 #define SIS_CMD_COMPLETE			0x1000
 #define SIS_CLEAR_CTRL_TO_HOST_DOORBELL		0x1000
+
 #define SIS_CMD_STATUS_SUCCESS			0x1
 #define SIS_CMD_COMPLETE_TIMEOUT_SECS		30
 #define SIS_CMD_COMPLETE_POLL_INTERVAL_MSECS	10
@@ -373,66 +374,21 @@ static int sis_wait_for_doorbell_bit_to_clear(
 	return rc;
 }
 
-/* Enable MSI-X interrupts on the controller. */
-
-void sis_enable_msix(struct pqi_ctrl_info *ctrl_info)
+static inline int sis_set_doorbell_bit(struct pqi_ctrl_info *ctrl_info, u32 bit)
 {
-	u32 doorbell_register;
-
-	doorbell_register =
-		readl(&ctrl_info->registers->sis_host_to_ctrl_doorbell);
-	doorbell_register |= SIS_ENABLE_MSIX;
+	writel(bit, &ctrl_info->registers->sis_host_to_ctrl_doorbell);
 
-	writel(doorbell_register,
-		&ctrl_info->registers->sis_host_to_ctrl_doorbell);
-
-	sis_wait_for_doorbell_bit_to_clear(ctrl_info, SIS_ENABLE_MSIX);
+	return sis_wait_for_doorbell_bit_to_clear(ctrl_info, bit);
 }
 
-/* Disable MSI-X interrupts on the controller. */
-
-void sis_disable_msix(struct pqi_ctrl_info *ctrl_info)
+void sis_enable_msix(struct pqi_ctrl_info *ctrl_info)
 {
-	u32 doorbell_register;
-
-	doorbell_register =
-		readl(&ctrl_info->registers->sis_host_to_ctrl_doorbell);
-	doorbell_register &= ~SIS_ENABLE_MSIX;
-
-	writel(doorbell_register,
-		&ctrl_info->registers->sis_host_to_ctrl_doorbell);
+	sis_set_doorbell_bit(ctrl_info, SIS_ENABLE_MSIX);
 }
 
 void sis_enable_intx(struct pqi_ctrl_info *ctrl_info)
 {
-	u32 doorbell_register;
-
-	doorbell_register =
-		readl(&ctrl_info->registers->sis_host_to_ctrl_doorbell);
-	doorbell_register |= SIS_ENABLE_INTX;
-
-	writel(doorbell_register,
-		&ctrl_info->registers->sis_host_to_ctrl_doorbell);
-
-	sis_wait_for_doorbell_bit_to_clear(ctrl_info, SIS_ENABLE_INTX);
-}
-
-void sis_disable_intx(struct pqi_ctrl_info *ctrl_info)
-{
-	u32 doorbell_register;
-
-	doorbell_register =
-		readl(&ctrl_info->registers->sis_host_to_ctrl_doorbell);
-	doorbell_register &= ~SIS_ENABLE_INTX;
-
-	writel(doorbell_register,
-		&ctrl_info->registers->sis_host_to_ctrl_doorbell);
-}
-
-void sis_soft_reset(struct pqi_ctrl_info *ctrl_info)
-{
-	writel(SIS_SOFT_RESET,
-		&ctrl_info->registers->sis_host_to_ctrl_doorbell);
+	sis_set_doorbell_bit(ctrl_info, SIS_ENABLE_INTX);
 }
 
 void sis_shutdown_ctrl(struct pqi_ctrl_info *ctrl_info)
@@ -447,51 +403,12 @@ void sis_shutdown_ctrl(struct pqi_ctrl_info *ctrl_info)
 
 int sis_pqi_reset_quiesce(struct pqi_ctrl_info *ctrl_info)
 {
-	u32 doorbell_register;
-
-	doorbell_register =
-		readl(&ctrl_info->registers->sis_host_to_ctrl_doorbell);
-	doorbell_register |= SIS_PQI_RESET_QUIESCE;
-
-	writel(doorbell_register,
-		&ctrl_info->registers->sis_host_to_ctrl_doorbell);
-
-	return sis_wait_for_doorbell_bit_to_clear(ctrl_info,
-		SIS_PQI_RESET_QUIESCE);
+	return sis_set_doorbell_bit(ctrl_info, SIS_PQI_RESET_QUIESCE);
 }
 
-#define SIS_MODE_READY_TIMEOUT_SECS	30
-
 int sis_reenable_sis_mode(struct pqi_ctrl_info *ctrl_info)
 {
-	int rc;
-	unsigned long timeout;
-	struct pqi_ctrl_registers __iomem *registers;
-	u32 doorbell;
-
-	registers = ctrl_info->registers;
-
-	writel(SIS_REENABLE_SIS_MODE,
-		&registers->sis_host_to_ctrl_doorbell);
-
-	rc = 0;
-	timeout = (SIS_MODE_READY_TIMEOUT_SECS * HZ) + jiffies;
-
-	while (1) {
-		doorbell = readl(&registers->sis_ctrl_to_host_doorbell);
-		if ((doorbell & SIS_REENABLE_SIS_MODE) == 0)
-			break;
-		if (time_after(jiffies, timeout)) {
-			rc = -ETIMEDOUT;
-			break;
-		}
-	}
-
-	if (rc)
-		dev_err(&ctrl_info->pci_dev->dev,
-			"re-enabling SIS mode failed\n");
-
-	return rc;
+	return sis_set_doorbell_bit(ctrl_info, SIS_REENABLE_SIS_MODE);
 }
 
 void sis_write_driver_scratch(struct pqi_ctrl_info *ctrl_info, u32 value)
diff --git a/drivers/scsi/smartpqi/smartpqi_sis.h b/drivers/scsi/smartpqi/smartpqi_sis.h
index 394b16e..2bf889d 100644
--- a/drivers/scsi/smartpqi/smartpqi_sis.h
+++ b/drivers/scsi/smartpqi/smartpqi_sis.h
@@ -27,10 +27,7 @@ int sis_get_ctrl_properties(struct pqi_ctrl_info *ctrl_info);
 int sis_get_pqi_capabilities(struct pqi_ctrl_info *ctrl_info);
 int sis_init_base_struct_addr(struct pqi_ctrl_info *ctrl_info);
 void sis_enable_msix(struct pqi_ctrl_info *ctrl_info);
-void sis_disable_msix(struct pqi_ctrl_info *ctrl_info);
 void sis_enable_intx(struct pqi_ctrl_info *ctrl_info);
-void sis_disable_intx(struct pqi_ctrl_info *ctrl_info);
-void sis_soft_reset(struct pqi_ctrl_info *ctrl_info);
 void sis_shutdown_ctrl(struct pqi_ctrl_info *ctrl_info);
 int sis_pqi_reset_quiesce(struct pqi_ctrl_info *ctrl_info);
 int sis_reenable_sis_mode(struct pqi_ctrl_info *ctrl_info);

[PATCH 5/7] smartpqi: update kexec and power down support

[Don Brace]

From: Kevin Barnett <kevin.barnett@microsemi.com>

add PQI reset to driver shutdown callback to
work around controller bug.

During an 1.) OS shutdown or 2.) kexec outside of a kdump,
the Linux kernel will clear BME on our controller.

If BME is cleared during a controller/host PCIe transfer,
the controller will lock up.

So we perform a PQI reset in the driver's shutdown callback
function to eliminate the possibility of a controller/host
PCIe transfer being active when the kernel clears BME immediately
after calling the driver's shutdown callback.

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
---
 drivers/scsi/smartpqi/smartpqi_init.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 70b1f97..afd3eed 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -6700,6 +6700,7 @@ static void pqi_shutdown(struct pci_dev *pci_dev)
 	 * storage.
 	 */
 	rc = pqi_flush_cache(ctrl_info, SHUTDOWN);
+	pqi_reset(ctrl_info);
 	if (rc == 0)
 		return;
 

[PATCH 6/7] smartpqi: add in new controller ids

[Don Brace]

From: Kevin Barnett <kevin.barnett@microsemi.com>

Update the driver’s PCI IDs to match the latest
Microsemi controllers

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
---
 drivers/scsi/smartpqi/smartpqi_init.c |   36 +++++++++++++--------------------
 1 file changed, 14 insertions(+), 22 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index afd3eed..59b6301 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -6822,7 +6822,7 @@ static const struct pci_device_id pqi_pci_id_table[] = {
 	},
 	{
 		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
-			       PCI_VENDOR_ID_ADAPTEC2, 0x0605)
+			       PCI_VENDOR_ID_ADAPTEC2, 0x0608)
 	},
 	{
 		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
@@ -6854,6 +6854,10 @@ static const struct pci_device_id pqi_pci_id_table[] = {
 	},
 	{
 		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+			       PCI_VENDOR_ID_ADAPTEC2, 0x0807)
+	},
+	{
+		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
 			       PCI_VENDOR_ID_ADAPTEC2, 0x0900)
 	},
 	{
@@ -6890,6 +6894,10 @@ static const struct pci_device_id pqi_pci_id_table[] = {
 	},
 	{
 		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+			       PCI_VENDOR_ID_ADAPTEC2, 0x090a)
+	},
+	{
+		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
 			       PCI_VENDOR_ID_ADAPTEC2, 0x1200)
 	},
 	{
@@ -6922,6 +6930,10 @@ static const struct pci_device_id pqi_pci_id_table[] = {
 	},
 	{
 		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
+			       PCI_VENDOR_ID_DELL, 0x1fe0)
+	},
+	{
+		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
 			       PCI_VENDOR_ID_HP, 0x0600)
 	},
 	{
@@ -6938,11 +6950,7 @@ static const struct pci_device_id pqi_pci_id_table[] = {
 	},
 	{
 		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
-			       PCI_VENDOR_ID_HP, 0x0604)
-	},
-	{
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
-			       PCI_VENDOR_ID_HP, 0x0606)
+			       PCI_VENDOR_ID_HP, 0x0609)
 	},
 	{
 		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
@@ -6970,14 +6978,6 @@ static const struct pci_device_id pqi_pci_id_table[] = {
 	},
 	{
 		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
-			       PCI_VENDOR_ID_HP, 0x0656)
-	},
-	{
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
-			       PCI_VENDOR_ID_HP, 0x0657)
-	},
-	{
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
 			       PCI_VENDOR_ID_HP, 0x0700)
 	},
 	{
@@ -6998,14 +6998,6 @@ static const struct pci_device_id pqi_pci_id_table[] = {
 	},
 	{
 		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
-			       PCI_VENDOR_ID_HP, 0x1102)
-	},
-	{
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
-			       PCI_VENDOR_ID_HP, 0x1150)
-	},
-	{
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
 			       PCI_ANY_ID, PCI_ANY_ID)
 	},
 	{ 0 }

[PATCH 7/7] smartpqi: change driver version to 1.1.2-125

[Don Brace]

From: Kevin Barnett <kevin.barnett@microsemi.com>

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
---
 drivers/scsi/smartpqi/smartpqi_init.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 59b6301..83bdbd8 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -40,11 +40,11 @@
 #define BUILD_TIMESTAMP
 #endif
 
-#define DRIVER_VERSION		"1.0.4-100"
+#define DRIVER_VERSION		"1.1.2-125"
 #define DRIVER_MAJOR		1
-#define DRIVER_MINOR		0
-#define DRIVER_RELEASE		4
-#define DRIVER_REVISION		100
+#define DRIVER_MINOR		1
+#define DRIVER_RELEASE		2
+#define DRIVER_REVISION		125
 
 #define DRIVER_NAME		"Microsemi PQI Driver (v" \
 				DRIVER_VERSION BUILD_TIMESTAMP ")"

Re: [PATCH 0/7] smartpqi updates

[Martin K. Petersen]

Don,

> These patches are based on Linus's tree
>
> The changes are:
>
>  - smartpqi-add-pqi-reset-quiesce-support
>    - allow driver to confirm completion of a reset.
>  - smartpqi-enhance-bmic-cache-flush
>    - can now distinguish between shutdown and power
>      management operation.
>  - smartpqi-update-pqi-passthru-ioctl
>    - update DMA direction
>  - smartpqi-cleanup-doorbell-register-usage
>    - change how sis mode is re-enabled
>  - smartpqi-update-kexec-power-down-support
>    - reset controller on shutdown
>  - smartpqi-add-in-new-controller-ids
>    - update for latest hw
>  - smartpqi-change-driver-version-to-1.1.2-125

Applied to 4.14/scsi-queue. Thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering