[PATCH 0/7] aacraid driver updates

[PATCH 0/7] aacraid driver updates

[Mahesh Rajashekhara]

This patch set includes some important bug fixes and new feature supports.

Mahesh Rajashekhara (7):
  aacraid: AIF support for SES device add/remove
  aacraid: IOCTL pass-through command fix
  aacraid: 4KB sector support
  aacraid: MSI-x support
  aacraid: vpd page code 0x83 support
  aacraid: performance improvement changes
  aacraid: AIF raw device remove support

 drivers/scsi/aacraid/aachba.c   |  355 +++++++++++++++++++++++++++++------
 drivers/scsi/aacraid/aacraid.h  |  102 +++++++++-
 drivers/scsi/aacraid/commctrl.c |   10 +-
 drivers/scsi/aacraid/comminit.c |  106 ++++++++++-
 drivers/scsi/aacraid/commsup.c  |   78 ++++++--
 drivers/scsi/aacraid/dpcsup.c   |   13 +-
 drivers/scsi/aacraid/linit.c    |   48 +++--
 drivers/scsi/aacraid/rx.c       |   14 +-
 drivers/scsi/aacraid/src.c      |  404 +++++++++++++++++++++++++++++----------
 9 files changed, 894 insertions(+), 236 deletions(-)

-- 
1.7.7.3

[PATCH 1/7] aacraid: AIF support for SES device add/remove

[Mahesh Rajashekhara]

Add new AIF support for SES device add/remove

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h |    2 ++
 drivers/scsi/aacraid/commsup.c |    8 ++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index eaaf870..284db39 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1951,6 +1951,8 @@ extern struct aac_common aac_config;
 #define			AifEnEnclosureManagement 13	/* EM_DRIVE_* */
 #define				EM_DRIVE_INSERTION	31
 #define				EM_DRIVE_REMOVAL	32
+#define			EM_SES_DRIVE_INSERTION	33
+#define			EM_SES_DRIVE_REMOVAL	26
 #define			AifEnBatteryEvent	14	/* Change in Battery State */
 #define			AifEnAddContainer	15	/* A new array was created */
 #define			AifEnDeleteContainer	16	/* A container was deleted */
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index cab190a..090ba68 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -1044,6 +1044,8 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 			switch (le32_to_cpu(((__le32 *)aifcmd->data)[3])) {
 			case EM_DRIVE_INSERTION:
 			case EM_DRIVE_REMOVAL:
+			case EM_SES_DRIVE_INSERTION:
+			case EM_SES_DRIVE_REMOVAL:
 				container = le32_to_cpu(
 					((__le32 *)aifcmd->data)[2]);
 				if ((container >> 28)) {
@@ -1069,8 +1071,10 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 				}
 				channel = aac_phys_to_logical(channel);
 				device_config_needed =
-				  (((__le32 *)aifcmd->data)[3]
-				    == cpu_to_le32(EM_DRIVE_INSERTION)) ?
+				  ((((__le32 *)aifcmd->data)[3]
+				    == cpu_to_le32(EM_DRIVE_INSERTION)) ||
+				    (((__le32 *)aifcmd->data)[3]
+				    == cpu_to_le32(EM_SES_DRIVE_INSERTION))) ?
 				  ADD : DELETE;
 				break;
 			}
-- 
1.7.7.3

RE: [PATCH 1/7] aacraid: AIF support for SES device add/remove

[Murthy Bhat]

Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>

-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 04, 2015 2:08 PM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 1/7] aacraid: AIF support for SES device add/remove

Add new AIF support for SES device add/remove

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h |    2 ++
 drivers/scsi/aacraid/commsup.c |    8 ++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index eaaf870..284db39 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1951,6 +1951,8 @@ extern struct aac_common aac_config;
 #define			AifEnEnclosureManagement 13	/* EM_DRIVE_* */
 #define				EM_DRIVE_INSERTION	31
 #define				EM_DRIVE_REMOVAL	32
+#define			EM_SES_DRIVE_INSERTION	33
+#define			EM_SES_DRIVE_REMOVAL	26
 #define			AifEnBatteryEvent	14	/* Change in Battery State */
 #define			AifEnAddContainer	15	/* A new array was created */
 #define			AifEnDeleteContainer	16	/* A container was deleted */
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index cab190a..090ba68 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -1044,6 +1044,8 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 			switch (le32_to_cpu(((__le32 *)aifcmd->data)[3])) {
 			case EM_DRIVE_INSERTION:
 			case EM_DRIVE_REMOVAL:
+			case EM_SES_DRIVE_INSERTION:
+			case EM_SES_DRIVE_REMOVAL:
 				container = le32_to_cpu(
 					((__le32 *)aifcmd->data)[2]);
 				if ((container >> 28)) {
@@ -1069,8 +1071,10 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 				}
 				channel = aac_phys_to_logical(channel);
 				device_config_needed =
-				  (((__le32 *)aifcmd->data)[3]
-				    == cpu_to_le32(EM_DRIVE_INSERTION)) ?
+				  ((((__le32 *)aifcmd->data)[3]
+				    == cpu_to_le32(EM_DRIVE_INSERTION)) ||
+				    (((__le32 *)aifcmd->data)[3]
+				    == cpu_to_le32(EM_SES_DRIVE_INSERTION))) ?
 				  ADD : DELETE;
 				break;
 			}
-- 
1.7.7.3

RE: [PATCH 1/7] aacraid: AIF support for SES device add/remove

[Achim Leubner]

Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>

-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 4, 2015 9:38 AM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 1/7] aacraid: AIF support for SES device add/remove

Add new AIF support for SES device add/remove

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h |    2 ++
 drivers/scsi/aacraid/commsup.c |    8 ++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index eaaf870..284db39 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1951,6 +1951,8 @@ extern struct aac_common aac_config;
 #define			AifEnEnclosureManagement 13	/* EM_DRIVE_* */
 #define				EM_DRIVE_INSERTION	31
 #define				EM_DRIVE_REMOVAL	32
+#define			EM_SES_DRIVE_INSERTION	33
+#define			EM_SES_DRIVE_REMOVAL	26
 #define			AifEnBatteryEvent	14	/* Change in Battery State */
 #define			AifEnAddContainer	15	/* A new array was created */
 #define			AifEnDeleteContainer	16	/* A container was deleted */
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index cab190a..090ba68 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -1044,6 +1044,8 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 			switch (le32_to_cpu(((__le32 *)aifcmd->data)[3])) {
 			case EM_DRIVE_INSERTION:
 			case EM_DRIVE_REMOVAL:
+			case EM_SES_DRIVE_INSERTION:
+			case EM_SES_DRIVE_REMOVAL:
 				container = le32_to_cpu(
 					((__le32 *)aifcmd->data)[2]);
 				if ((container >> 28)) {
@@ -1069,8 +1071,10 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 				}
 				channel = aac_phys_to_logical(channel);
 				device_config_needed =
-				  (((__le32 *)aifcmd->data)[3]
-				    == cpu_to_le32(EM_DRIVE_INSERTION)) ?
+				  ((((__le32 *)aifcmd->data)[3]
+				    == cpu_to_le32(EM_DRIVE_INSERTION)) ||
+				    (((__le32 *)aifcmd->data)[3]
+				    == cpu_to_le32(EM_SES_DRIVE_INSERTION))) ?
 				  ADD : DELETE;
 				break;
 			}
--
1.7.7.3

Re: [PATCH 1/7] aacraid: AIF support for SES device add/remove

[Hannes Reinecke]

On 03/17/2015 04:24 PM, Achim Leubner wrote:
> Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>
> 
> -----Original Message-----
> From: Mahesh Rajashekhara 
> Sent: Wednesday, March 4, 2015 9:38 AM
> To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
> Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
> Subject: [PATCH 1/7] aacraid: AIF support for SES device add/remove
> 
> Add new AIF support for SES device add/remove
> 
> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>

Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 2/7] aacraid: IOCTL pass-through command fix

[Mahesh Rajashekhara]

The Linux aacriad driver fails to detect the case of SG list count=0 on IOCTL pass-through command and cause intermittent fault.
The result is the Linux aacriad driver send down IOCTL pass-through command with one not initialized SG list to firmware when receiving SG list count =0 on pass-through command.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/commctrl.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index fbcd48d..54195a1 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -689,7 +689,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 			kfree (usg);
 		}
 		srbcmd->count = cpu_to_le32(byte_count);
-		psg->count = cpu_to_le32(sg_indx+1);
+		if (user_srbcmd->sg.count)
+			psg->count = cpu_to_le32(sg_indx+1);
+		else
+			psg->count = 0;
 		status = aac_fib_send(ScsiPortCommand64, srbfib, actual_fibsize, FsaNormal, 1, 1,NULL,NULL);
 	} else {
 		struct user_sgmap* upsg = &user_srbcmd->sg;
@@ -775,7 +778,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 			}
 		}
 		srbcmd->count = cpu_to_le32(byte_count);
-		psg->count = cpu_to_le32(sg_indx+1);
+		if (user_srbcmd->sg.count)
+			psg->count = cpu_to_le32(sg_indx+1);
+		else
+			psg->count = 0;
 		status = aac_fib_send(ScsiPortCommand, srbfib, actual_fibsize, FsaNormal, 1, 1, NULL, NULL);
 	}
 	if (status == -ERESTARTSYS) {
-- 
1.7.7.3

RE: [PATCH 2/7] aacraid: IOCTL pass-through command fix

[Murthy Bhat]

Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>

-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 04, 2015 2:08 PM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 2/7] aacraid: IOCTL pass-through command fix

The Linux aacriad driver fails to detect the case of SG list count=0 on IOCTL pass-through command and cause intermittent fault.
The result is the Linux aacriad driver send down IOCTL pass-through command with one not initialized SG list to firmware when receiving SG list count =0 on pass-through command.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/commctrl.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index fbcd48d..54195a1 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -689,7 +689,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 			kfree (usg);
 		}
 		srbcmd->count = cpu_to_le32(byte_count);
-		psg->count = cpu_to_le32(sg_indx+1);
+		if (user_srbcmd->sg.count)
+			psg->count = cpu_to_le32(sg_indx+1);
+		else
+			psg->count = 0;
 		status = aac_fib_send(ScsiPortCommand64, srbfib, actual_fibsize, FsaNormal, 1, 1,NULL,NULL);
 	} else {
 		struct user_sgmap* upsg = &user_srbcmd->sg;
@@ -775,7 +778,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 			}
 		}
 		srbcmd->count = cpu_to_le32(byte_count);
-		psg->count = cpu_to_le32(sg_indx+1);
+		if (user_srbcmd->sg.count)
+			psg->count = cpu_to_le32(sg_indx+1);
+		else
+			psg->count = 0;
 		status = aac_fib_send(ScsiPortCommand, srbfib, actual_fibsize, FsaNormal, 1, 1, NULL, NULL);
 	}
 	if (status == -ERESTARTSYS) {
-- 
1.7.7.3

RE: [PATCH 2/7] aacraid: IOCTL pass-through command fix

[Achim Leubner]

Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>

-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 4, 2015 9:38 AM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 2/7] aacraid: IOCTL pass-through command fix

The Linux aacriad driver fails to detect the case of SG list count=0 on IOCTL pass-through command and cause intermittent fault.
The result is the Linux aacriad driver send down IOCTL pass-through command with one not initialized SG list to firmware when receiving SG list count =0 on pass-through command.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/commctrl.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index fbcd48d..54195a1 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -689,7 +689,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 			kfree (usg);
 		}
 		srbcmd->count = cpu_to_le32(byte_count);
-		psg->count = cpu_to_le32(sg_indx+1);
+		if (user_srbcmd->sg.count)
+			psg->count = cpu_to_le32(sg_indx+1);
+		else
+			psg->count = 0;
 		status = aac_fib_send(ScsiPortCommand64, srbfib, actual_fibsize, FsaNormal, 1, 1,NULL,NULL);
 	} else {
 		struct user_sgmap* upsg = &user_srbcmd->sg; @@ -775,7 +778,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 			}
 		}
 		srbcmd->count = cpu_to_le32(byte_count);
-		psg->count = cpu_to_le32(sg_indx+1);
+		if (user_srbcmd->sg.count)
+			psg->count = cpu_to_le32(sg_indx+1);
+		else
+			psg->count = 0;
 		status = aac_fib_send(ScsiPortCommand, srbfib, actual_fibsize, FsaNormal, 1, 1, NULL, NULL);
 	}
 	if (status == -ERESTARTSYS) {
--
1.7.7.3

Re: [PATCH 2/7] aacraid: IOCTL pass-through command fix

[Hannes Reinecke]

On 03/17/2015 04:26 PM, Achim Leubner wrote:
> Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>
> 
> -----Original Message-----
> From: Mahesh Rajashekhara 
> Sent: Wednesday, March 4, 2015 9:38 AM
> To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
> Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
> Subject: [PATCH 2/7] aacraid: IOCTL pass-through command fix
> 
> The Linux aacriad driver fails to detect the case of SG list count=0 on IOCTL pass-through command and cause intermittent fault.
> The result is the Linux aacriad driver send down IOCTL pass-through command with one not initialized SG list to firmware when receiving SG list count =0 on pass-through command.
> 
> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>

Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 3/7] aacraid: 4KB sector support

[Mahesh Rajashekhara]

Add 4KB sector support

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aachba.c  |  195 +++++++++++++++++++++++++++++++---------
 drivers/scsi/aacraid/aacraid.h |   10 ++-
 2 files changed, 160 insertions(+), 45 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index b32e77d..0819644 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -111,6 +111,41 @@
 #define BYTE2(x) (unsigned char)((x) >> 16)
 #define BYTE3(x) (unsigned char)((x) >> 24)
 
+/* MODE_SENSE data format */
+typedef struct {
+	struct {
+		u8	data_length;
+		u8	med_type;
+		u8	dev_par;
+		u8	bd_length;
+	} __attribute__((packed)) hd;
+	struct {
+		u8	dens_code;
+		u8	block_count[3];
+		u8	reserved;
+		u8	block_length[3];
+	} __attribute__((packed)) bd;
+		u8	mpc_buf[3];
+} __attribute__((packed)) aac_modep_data;
+
+/* MODE_SENSE_10 data format */
+typedef struct {
+	struct {
+		u8	data_length[2];
+		u8	med_type;
+		u8	dev_par;
+		u8	rsrvd[2];
+		u8	bd_length[2];
+	} __attribute__((packed)) hd;
+	struct {
+		u8	dens_code;
+		u8	block_count[3];
+		u8	reserved;
+		u8	block_length[3];
+	} __attribute__((packed)) bd;
+		u8	mpc_buf[3];
+} __attribute__((packed)) aac_modep10_data;
+
 /*------------------------------------------------------------------------------
  *              S T R U C T S / T Y P E D E F S
  *----------------------------------------------------------------------------*/
@@ -539,6 +574,13 @@ static void _aac_probe_container2(void * context, struct fib * fibptr)
 		if ((le32_to_cpu(dresp->status) == ST_OK) &&
 		    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 		    (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
+			if (!(fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+			    AAC_OPTION_VARIABLE_BLOCK_SIZE)) {
+				dresp->mnt[0].fileinfo.bdevinfo.block_size = 0x200;
+				fsa_dev_ptr->block_size = 0x200;
+			} else {
+				fsa_dev_ptr->block_size = le32_to_cpu(dresp->mnt[0].fileinfo.bdevinfo.block_size);
+			}
 			fsa_dev_ptr->valid = 1;
 			/* sense_key holds the current state of the spin-up */
 			if (dresp->mnt[0].state & cpu_to_le32(FSCS_NOT_READY))
@@ -586,7 +628,12 @@ static void _aac_probe_container1(void * context, struct fib * fibptr)
 
 	dinfo = (struct aac_query_mount *)fib_data(fibptr);
 
-	dinfo->command = cpu_to_le32(VM_NameServe64);
+	if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+	    AAC_OPTION_VARIABLE_BLOCK_SIZE)
+		dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
+	else
+		dinfo->command = cpu_to_le32(VM_NameServe64);
+
 	dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 	dinfo->type = cpu_to_le32(FT_FILESYS);
 
@@ -621,7 +668,12 @@ static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(stru
 
 		dinfo = (struct aac_query_mount *)fib_data(fibptr);
 
-		dinfo->command = cpu_to_le32(VM_NameServe);
+		if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+		    AAC_OPTION_VARIABLE_BLOCK_SIZE)
+			dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
+		else
+			dinfo->command = cpu_to_le32(VM_NameServe);
+
 		dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 		dinfo->type = cpu_to_le32(FT_FILESYS);
 		scsicmd->SCp.ptr = (char *)callback;
@@ -982,7 +1034,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 		memset(readcmd2, 0, sizeof(struct aac_raw_io2));
 		readcmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
 		readcmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		readcmd2->byteCount = cpu_to_le32(count<<9);
+		readcmd2->byteCount = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 		readcmd2->cid = cpu_to_le16(scmd_id(cmd));
 		readcmd2->flags = cpu_to_le16(RIO2_IO_TYPE_READ);
 		ret = aac_build_sgraw2(cmd, readcmd2,
@@ -997,7 +1049,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 		readcmd = (struct aac_raw_io *) fib_data(fib);
 		readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 		readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		readcmd->count = cpu_to_le32(count<<9);
+		readcmd->count = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 		readcmd->cid = cpu_to_le16(scmd_id(cmd));
 		readcmd->flags = cpu_to_le16(RIO_TYPE_READ);
 		readcmd->bpTotal = 0;
@@ -1062,6 +1114,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32
 {
 	u16 fibsize;
 	struct aac_read *readcmd;
+	struct aac_dev *dev = fib->dev;
 	long ret;
 
 	aac_fib_init(fib);
@@ -1069,7 +1122,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32
 	readcmd->command = cpu_to_le32(VM_CtBlockRead);
 	readcmd->cid = cpu_to_le32(scmd_id(cmd));
 	readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
-	readcmd->count = cpu_to_le32(count * 512);
+	readcmd->count = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 
 	ret = aac_build_sg(cmd, &readcmd->sg);
 	if (ret < 0)
@@ -1104,7 +1157,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
 		memset(writecmd2, 0, sizeof(struct aac_raw_io2));
 		writecmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
 		writecmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		writecmd2->byteCount = cpu_to_le32(count<<9);
+		writecmd2->byteCount = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 		writecmd2->cid = cpu_to_le16(scmd_id(cmd));
 		writecmd2->flags = (fua && ((aac_cache & 5) != 1) &&
 						   (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
@@ -1122,7 +1175,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
 		writecmd = (struct aac_raw_io *) fib_data(fib);
 		writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 		writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		writecmd->count = cpu_to_le32(count<<9);
+		writecmd->count = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 		writecmd->cid = cpu_to_le16(scmd_id(cmd));
 		writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
 						   (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
@@ -1190,6 +1243,7 @@ static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 {
 	u16 fibsize;
 	struct aac_write *writecmd;
+	struct aac_dev *dev = fib->dev;
 	long ret;
 
 	aac_fib_init(fib);
@@ -1197,7 +1251,7 @@ static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 	writecmd->command = cpu_to_le32(VM_CtBlockWrite);
 	writecmd->cid = cpu_to_le32(scmd_id(cmd));
 	writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
-	writecmd->count = cpu_to_le32(count * 512);
+	writecmd->count = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 	writecmd->sg.count = cpu_to_le32(1);
 	/* ->stable is not used - it did mean which type of write */
 
@@ -2329,10 +2383,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		cp[5] = (capacity >> 16) & 0xff;
 		cp[6] = (capacity >> 8) & 0xff;
 		cp[7] = (capacity >> 0) & 0xff;
-		cp[8] = 0;
-		cp[9] = 0;
-		cp[10] = 2;
-		cp[11] = 0;
+		cp[8] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
+		cp[9] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+		cp[10] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
+		cp[11] = (fsa_dev_ptr[cid].block_size) & 0xff;
 		cp[12] = 0;
 
 		alloc_len = ((scsicmd->cmnd[10] << 24)
@@ -2369,10 +2423,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		cp[1] = (capacity >> 16) & 0xff;
 		cp[2] = (capacity >> 8) & 0xff;
 		cp[3] = (capacity >> 0) & 0xff;
-		cp[4] = 0;
-		cp[5] = 0;
-		cp[6] = 2;
-		cp[7] = 0;
+		cp[4] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
+		cp[5] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+		cp[6] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
+		cp[7] = (fsa_dev_ptr[cid].block_size) & 0xff;
 		scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
 		/* Do not cache partition table for arrays */
 		scsicmd->device->removable = 1;
@@ -2385,30 +2439,55 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 
 	case MODE_SENSE:
 	{
-		char mode_buf[7];
 		int mode_buf_length = 4;
+		u32 capacity;
+		aac_modep_data mpd;
+
+		if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
+			capacity = fsa_dev_ptr[cid].size - 1;
+		else
+			capacity = (u32)-1;
 
 		dprintk((KERN_DEBUG "MODE SENSE command.\n"));
-		mode_buf[0] = 3;	/* Mode data length */
-		mode_buf[1] = 0;	/* Medium type - default */
-		mode_buf[2] = 0;	/* Device-specific param,
+		memset((char *)&mpd, 0, sizeof(aac_modep_data));
+
+		mpd.hd.data_length = sizeof(mpd.hd) - 1;	/* Mode data length */
+		mpd.hd.med_type = 0;	/* Medium type - default */
+		mpd.hd.dev_par = 0;	/* Device-specific param,
 					   bit 8: 0/1 = write enabled/protected
 					   bit 4: 0/1 = FUA enabled */
 		if (dev->raw_io_interface && ((aac_cache & 5) != 1))
-			mode_buf[2] = 0x10;
-		mode_buf[3] = 0;	/* Block descriptor length */
+			mpd.hd.dev_par = 0x10;
+		if (scsicmd->cmnd[1] & 0x8) {
+			mpd.hd.bd_length = 0;	/* Block descriptor length */
+		} else {
+			mpd.hd.bd_length = sizeof(mpd.bd);
+			mpd.hd.data_length += mpd.hd.bd_length;
+			mpd.bd.block_length[0] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+			mpd.bd.block_length[1] = (fsa_dev_ptr[cid].block_size >> 8) &  0xff;
+			mpd.bd.block_length[2] = fsa_dev_ptr[cid].block_size  & 0xff;
+			if (capacity > 0xffffff) {
+				mpd.bd.block_count[0] = 0xff;
+				mpd.bd.block_count[1] = 0xff;
+				mpd.bd.block_count[2] = 0xff;
+			} else {
+				mpd.bd.block_count[0] = (capacity >> 16) & 0xff;
+				mpd.bd.block_count[1] = (capacity >> 8) & 0xff;
+				mpd.bd.block_count[2] = capacity  & 0xff;
+			}
+		}
 		if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
 		  ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
-			mode_buf[0] = 6;
-			mode_buf[4] = 8;
-			mode_buf[5] = 1;
-			mode_buf[6] = ((aac_cache & 6) == 2)
+			mpd.hd.data_length += 3;
+			mpd.mpc_buf[0] = 8;
+			mpd.mpc_buf[1] = 1;
+			mpd.mpc_buf[2] = ((aac_cache & 6) == 2)
 				? 0 : 0x04; /* WCE */
-			mode_buf_length = 7;
+			mode_buf_length = sizeof(mpd);
 			if (mode_buf_length > scsicmd->cmnd[4])
 				mode_buf_length = scsicmd->cmnd[4];
 		}
-		scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
+		scsi_sg_copy_from_buffer(scsicmd, (char *)&mpd, mode_buf_length);
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
 
@@ -2416,34 +2495,62 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 	}
 	case MODE_SENSE_10:
 	{
-		char mode_buf[11];
+		u32 capacity;
 		int mode_buf_length = 8;
+		aac_modep10_data mpd10;
+
+		if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
+			capacity = fsa_dev_ptr[cid].size - 1;
+		else
+			capacity = (u32)-1;
 
 		dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
-		mode_buf[0] = 0;	/* Mode data length (MSB) */
-		mode_buf[1] = 6;	/* Mode data length (LSB) */
-		mode_buf[2] = 0;	/* Medium type - default */
-		mode_buf[3] = 0;	/* Device-specific param,
+		memset((char *)&mpd10, 0, sizeof(aac_modep10_data));
+		mpd10.hd.data_length[0] = 0;	/* Mode data length (MSB) */
+		mpd10.hd.data_length[1] = sizeof(mpd10.hd) - 1;	/* Mode data length (LSB) */
+		mpd10.hd.med_type = 0;	/* Medium type - default */
+		mpd10.hd.dev_par = 0;	/* Device-specific param,
 					   bit 8: 0/1 = write enabled/protected
 					   bit 4: 0/1 = FUA enabled */
 		if (dev->raw_io_interface && ((aac_cache & 5) != 1))
-			mode_buf[3] = 0x10;
-		mode_buf[4] = 0;	/* reserved */
-		mode_buf[5] = 0;	/* reserved */
-		mode_buf[6] = 0;	/* Block descriptor length (MSB) */
-		mode_buf[7] = 0;	/* Block descriptor length (LSB) */
+			mpd10.hd.dev_par = 0x10;
+		mpd10.hd.rsrvd[0] = 0;	/* reserved */
+		mpd10.hd.rsrvd[1] = 0;	/* reserved */
+		if (scsicmd->cmnd[1] & 0x8) {
+			mpd10.hd.bd_length[0] = 0;	/* Block descriptor length (MSB) */
+			mpd10.hd.bd_length[1] = 0;	/* Block descriptor length (LSB) */
+		} else {
+			mpd10.hd.bd_length[0] = 0;
+			mpd10.hd.bd_length[1] = sizeof(mpd10.bd);
+
+			mpd10.hd.data_length[1] += mpd10.hd.bd_length[1];
+
+			mpd10.bd.block_length[0] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+			mpd10.bd.block_length[1] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
+			mpd10.bd.block_length[2] = fsa_dev_ptr[cid].block_size  & 0xff;
+
+			if (capacity > 0xffffff) {
+				mpd10.bd.block_count[0] = 0xff;
+				mpd10.bd.block_count[1] = 0xff;
+				mpd10.bd.block_count[2] = 0xff;
+			} else {
+				mpd10.bd.block_count[0] = (capacity >> 16) & 0xff;
+				mpd10.bd.block_count[1] = (capacity >> 8) & 0xff;
+				mpd10.bd.block_count[2] = capacity  & 0xff;
+			}
+		}
 		if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
 		  ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
-			mode_buf[1] = 9;
-			mode_buf[8] = 8;
-			mode_buf[9] = 1;
-			mode_buf[10] = ((aac_cache & 6) == 2)
+			mpd10.hd.data_length[1] += 3;
+			mpd10.mpc_buf[0] = 8;
+			mpd10.mpc_buf[1] = 1;
+			mpd10.mpc_buf[2] = ((aac_cache & 6) == 2)
 				? 0 : 0x04; /* WCE */
-			mode_buf_length = 11;
+			mode_buf_length = sizeof(mpd10);
 			if (mode_buf_length > scsicmd->cmnd[8])
 				mode_buf_length = scsicmd->cmnd[8];
 		}
-		scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
+		scsi_sg_copy_from_buffer(scsicmd, (char *)&mpd10, mode_buf_length);
 
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 284db39..93579f3 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -857,6 +857,7 @@ struct fsa_dev_info {
 	u8		deleted;
 	char		devname[8];
 	struct sense_data sense_data;
+	u32		block_size;
 };
 
 struct fib {
@@ -960,6 +961,7 @@ struct aac_supplement_adapter_info
 #define AAC_OPTION_IGNORE_RESET		cpu_to_le32(0x00000002)
 #define AAC_OPTION_POWER_MANAGEMENT	cpu_to_le32(0x00000004)
 #define AAC_OPTION_DOORBELL_RESET	cpu_to_le32(0x00004000)
+#define AAC_OPTION_VARIABLE_BLOCK_SIZE	cpu_to_le32(0x00040000) /* 4KB sector size */
 #define AAC_SIS_VERSION_V3	3
 #define AAC_SIS_SLOT_UNKNOWN	0xFF
 
@@ -1589,6 +1591,7 @@ struct aac_srb_reply
 #define		VM_CtHostWrite64	20
 #define		VM_DrvErrTblLog		21
 #define		VM_NameServe64		22
+#define		VM_NameServeAllBlk	30
 
 #define		MAX_VMCOMMAND_NUM	23	/* used for sizing stats array - leave last */
 
@@ -1611,8 +1614,13 @@ struct aac_fsinfo {
 	__le32  fsInodeDensity;
 };	/* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */
 
+struct  aac_blockdevinfo {
+	__le32	block_size;
+};
+
 union aac_contentinfo {
-	struct aac_fsinfo filesys;	/* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */
+	struct	aac_fsinfo		filesys;	/* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */
+	struct	aac_blockdevinfo	bdevinfo;
 };
 
 /*
-- 
1.7.7.3

RE: [PATCH 3/7] aacraid: 4KB sector support

[Murthy Bhat]

Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>

-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 04, 2015 2:08 PM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 3/7] aacraid: 4KB sector support

Add 4KB sector support

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aachba.c  |  195 +++++++++++++++++++++++++++++++---------
 drivers/scsi/aacraid/aacraid.h |   10 ++-
 2 files changed, 160 insertions(+), 45 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index b32e77d..0819644 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -111,6 +111,41 @@
 #define BYTE2(x) (unsigned char)((x) >> 16)
 #define BYTE3(x) (unsigned char)((x) >> 24)
 
+/* MODE_SENSE data format */
+typedef struct {
+	struct {
+		u8	data_length;
+		u8	med_type;
+		u8	dev_par;
+		u8	bd_length;
+	} __attribute__((packed)) hd;
+	struct {
+		u8	dens_code;
+		u8	block_count[3];
+		u8	reserved;
+		u8	block_length[3];
+	} __attribute__((packed)) bd;
+		u8	mpc_buf[3];
+} __attribute__((packed)) aac_modep_data;
+
+/* MODE_SENSE_10 data format */
+typedef struct {
+	struct {
+		u8	data_length[2];
+		u8	med_type;
+		u8	dev_par;
+		u8	rsrvd[2];
+		u8	bd_length[2];
+	} __attribute__((packed)) hd;
+	struct {
+		u8	dens_code;
+		u8	block_count[3];
+		u8	reserved;
+		u8	block_length[3];
+	} __attribute__((packed)) bd;
+		u8	mpc_buf[3];
+} __attribute__((packed)) aac_modep10_data;
+
 /*------------------------------------------------------------------------------
  *              S T R U C T S / T Y P E D E F S
  *----------------------------------------------------------------------------*/
@@ -539,6 +574,13 @@ static void _aac_probe_container2(void * context, struct fib * fibptr)
 		if ((le32_to_cpu(dresp->status) == ST_OK) &&
 		    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 		    (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
+			if (!(fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+			    AAC_OPTION_VARIABLE_BLOCK_SIZE)) {
+				dresp->mnt[0].fileinfo.bdevinfo.block_size = 0x200;
+				fsa_dev_ptr->block_size = 0x200;
+			} else {
+				fsa_dev_ptr->block_size = le32_to_cpu(dresp->mnt[0].fileinfo.bdevinfo.block_size);
+			}
 			fsa_dev_ptr->valid = 1;
 			/* sense_key holds the current state of the spin-up */
 			if (dresp->mnt[0].state & cpu_to_le32(FSCS_NOT_READY))
@@ -586,7 +628,12 @@ static void _aac_probe_container1(void * context, struct fib * fibptr)
 
 	dinfo = (struct aac_query_mount *)fib_data(fibptr);
 
-	dinfo->command = cpu_to_le32(VM_NameServe64);
+	if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+	    AAC_OPTION_VARIABLE_BLOCK_SIZE)
+		dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
+	else
+		dinfo->command = cpu_to_le32(VM_NameServe64);
+
 	dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 	dinfo->type = cpu_to_le32(FT_FILESYS);
 
@@ -621,7 +668,12 @@ static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(stru
 
 		dinfo = (struct aac_query_mount *)fib_data(fibptr);
 
-		dinfo->command = cpu_to_le32(VM_NameServe);
+		if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+		    AAC_OPTION_VARIABLE_BLOCK_SIZE)
+			dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
+		else
+			dinfo->command = cpu_to_le32(VM_NameServe);
+
 		dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 		dinfo->type = cpu_to_le32(FT_FILESYS);
 		scsicmd->SCp.ptr = (char *)callback;
@@ -982,7 +1034,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 		memset(readcmd2, 0, sizeof(struct aac_raw_io2));
 		readcmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
 		readcmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		readcmd2->byteCount = cpu_to_le32(count<<9);
+		readcmd2->byteCount = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 		readcmd2->cid = cpu_to_le16(scmd_id(cmd));
 		readcmd2->flags = cpu_to_le16(RIO2_IO_TYPE_READ);
 		ret = aac_build_sgraw2(cmd, readcmd2,
@@ -997,7 +1049,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 		readcmd = (struct aac_raw_io *) fib_data(fib);
 		readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 		readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		readcmd->count = cpu_to_le32(count<<9);
+		readcmd->count = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 		readcmd->cid = cpu_to_le16(scmd_id(cmd));
 		readcmd->flags = cpu_to_le16(RIO_TYPE_READ);
 		readcmd->bpTotal = 0;
@@ -1062,6 +1114,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32
 {
 	u16 fibsize;
 	struct aac_read *readcmd;
+	struct aac_dev *dev = fib->dev;
 	long ret;
 
 	aac_fib_init(fib);
@@ -1069,7 +1122,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32
 	readcmd->command = cpu_to_le32(VM_CtBlockRead);
 	readcmd->cid = cpu_to_le32(scmd_id(cmd));
 	readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
-	readcmd->count = cpu_to_le32(count * 512);
+	readcmd->count = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 
 	ret = aac_build_sg(cmd, &readcmd->sg);
 	if (ret < 0)
@@ -1104,7 +1157,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
 		memset(writecmd2, 0, sizeof(struct aac_raw_io2));
 		writecmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
 		writecmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		writecmd2->byteCount = cpu_to_le32(count<<9);
+		writecmd2->byteCount = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 		writecmd2->cid = cpu_to_le16(scmd_id(cmd));
 		writecmd2->flags = (fua && ((aac_cache & 5) != 1) &&
 						   (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
@@ -1122,7 +1175,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
 		writecmd = (struct aac_raw_io *) fib_data(fib);
 		writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 		writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		writecmd->count = cpu_to_le32(count<<9);
+		writecmd->count = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 		writecmd->cid = cpu_to_le16(scmd_id(cmd));
 		writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
 						   (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
@@ -1190,6 +1243,7 @@ static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 {
 	u16 fibsize;
 	struct aac_write *writecmd;
+	struct aac_dev *dev = fib->dev;
 	long ret;
 
 	aac_fib_init(fib);
@@ -1197,7 +1251,7 @@ static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 	writecmd->command = cpu_to_le32(VM_CtBlockWrite);
 	writecmd->cid = cpu_to_le32(scmd_id(cmd));
 	writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
-	writecmd->count = cpu_to_le32(count * 512);
+	writecmd->count = cpu_to_le32(count * dev->fsa_dev[scmd_id(cmd)].block_size);
 	writecmd->sg.count = cpu_to_le32(1);
 	/* ->stable is not used - it did mean which type of write */
 
@@ -2329,10 +2383,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		cp[5] = (capacity >> 16) & 0xff;
 		cp[6] = (capacity >> 8) & 0xff;
 		cp[7] = (capacity >> 0) & 0xff;
-		cp[8] = 0;
-		cp[9] = 0;
-		cp[10] = 2;
-		cp[11] = 0;
+		cp[8] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
+		cp[9] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+		cp[10] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
+		cp[11] = (fsa_dev_ptr[cid].block_size) & 0xff;
 		cp[12] = 0;
 
 		alloc_len = ((scsicmd->cmnd[10] << 24)
@@ -2369,10 +2423,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		cp[1] = (capacity >> 16) & 0xff;
 		cp[2] = (capacity >> 8) & 0xff;
 		cp[3] = (capacity >> 0) & 0xff;
-		cp[4] = 0;
-		cp[5] = 0;
-		cp[6] = 2;
-		cp[7] = 0;
+		cp[4] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
+		cp[5] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+		cp[6] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
+		cp[7] = (fsa_dev_ptr[cid].block_size) & 0xff;
 		scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
 		/* Do not cache partition table for arrays */
 		scsicmd->device->removable = 1;
@@ -2385,30 +2439,55 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 
 	case MODE_SENSE:
 	{
-		char mode_buf[7];
 		int mode_buf_length = 4;
+		u32 capacity;
+		aac_modep_data mpd;
+
+		if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
+			capacity = fsa_dev_ptr[cid].size - 1;
+		else
+			capacity = (u32)-1;
 
 		dprintk((KERN_DEBUG "MODE SENSE command.\n"));
-		mode_buf[0] = 3;	/* Mode data length */
-		mode_buf[1] = 0;	/* Medium type - default */
-		mode_buf[2] = 0;	/* Device-specific param,
+		memset((char *)&mpd, 0, sizeof(aac_modep_data));
+
+		mpd.hd.data_length = sizeof(mpd.hd) - 1;	/* Mode data length */
+		mpd.hd.med_type = 0;	/* Medium type - default */
+		mpd.hd.dev_par = 0;	/* Device-specific param,
 					   bit 8: 0/1 = write enabled/protected
 					   bit 4: 0/1 = FUA enabled */
 		if (dev->raw_io_interface && ((aac_cache & 5) != 1))
-			mode_buf[2] = 0x10;
-		mode_buf[3] = 0;	/* Block descriptor length */
+			mpd.hd.dev_par = 0x10;
+		if (scsicmd->cmnd[1] & 0x8) {
+			mpd.hd.bd_length = 0;	/* Block descriptor length */
+		} else {
+			mpd.hd.bd_length = sizeof(mpd.bd);
+			mpd.hd.data_length += mpd.hd.bd_length;
+			mpd.bd.block_length[0] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+			mpd.bd.block_length[1] = (fsa_dev_ptr[cid].block_size >> 8) &  0xff;
+			mpd.bd.block_length[2] = fsa_dev_ptr[cid].block_size  & 0xff;
+			if (capacity > 0xffffff) {
+				mpd.bd.block_count[0] = 0xff;
+				mpd.bd.block_count[1] = 0xff;
+				mpd.bd.block_count[2] = 0xff;
+			} else {
+				mpd.bd.block_count[0] = (capacity >> 16) & 0xff;
+				mpd.bd.block_count[1] = (capacity >> 8) & 0xff;
+				mpd.bd.block_count[2] = capacity  & 0xff;
+			}
+		}
 		if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
 		  ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
-			mode_buf[0] = 6;
-			mode_buf[4] = 8;
-			mode_buf[5] = 1;
-			mode_buf[6] = ((aac_cache & 6) == 2)
+			mpd.hd.data_length += 3;
+			mpd.mpc_buf[0] = 8;
+			mpd.mpc_buf[1] = 1;
+			mpd.mpc_buf[2] = ((aac_cache & 6) == 2)
 				? 0 : 0x04; /* WCE */
-			mode_buf_length = 7;
+			mode_buf_length = sizeof(mpd);
 			if (mode_buf_length > scsicmd->cmnd[4])
 				mode_buf_length = scsicmd->cmnd[4];
 		}
-		scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
+		scsi_sg_copy_from_buffer(scsicmd, (char *)&mpd, mode_buf_length);
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
 
@@ -2416,34 +2495,62 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 	}
 	case MODE_SENSE_10:
 	{
-		char mode_buf[11];
+		u32 capacity;
 		int mode_buf_length = 8;
+		aac_modep10_data mpd10;
+
+		if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
+			capacity = fsa_dev_ptr[cid].size - 1;
+		else
+			capacity = (u32)-1;
 
 		dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
-		mode_buf[0] = 0;	/* Mode data length (MSB) */
-		mode_buf[1] = 6;	/* Mode data length (LSB) */
-		mode_buf[2] = 0;	/* Medium type - default */
-		mode_buf[3] = 0;	/* Device-specific param,
+		memset((char *)&mpd10, 0, sizeof(aac_modep10_data));
+		mpd10.hd.data_length[0] = 0;	/* Mode data length (MSB) */
+		mpd10.hd.data_length[1] = sizeof(mpd10.hd) - 1;	/* Mode data length (LSB) */
+		mpd10.hd.med_type = 0;	/* Medium type - default */
+		mpd10.hd.dev_par = 0;	/* Device-specific param,
 					   bit 8: 0/1 = write enabled/protected
 					   bit 4: 0/1 = FUA enabled */
 		if (dev->raw_io_interface && ((aac_cache & 5) != 1))
-			mode_buf[3] = 0x10;
-		mode_buf[4] = 0;	/* reserved */
-		mode_buf[5] = 0;	/* reserved */
-		mode_buf[6] = 0;	/* Block descriptor length (MSB) */
-		mode_buf[7] = 0;	/* Block descriptor length (LSB) */
+			mpd10.hd.dev_par = 0x10;
+		mpd10.hd.rsrvd[0] = 0;	/* reserved */
+		mpd10.hd.rsrvd[1] = 0;	/* reserved */
+		if (scsicmd->cmnd[1] & 0x8) {
+			mpd10.hd.bd_length[0] = 0;	/* Block descriptor length (MSB) */
+			mpd10.hd.bd_length[1] = 0;	/* Block descriptor length (LSB) */
+		} else {
+			mpd10.hd.bd_length[0] = 0;
+			mpd10.hd.bd_length[1] = sizeof(mpd10.bd);
+
+			mpd10.hd.data_length[1] += mpd10.hd.bd_length[1];
+
+			mpd10.bd.block_length[0] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+			mpd10.bd.block_length[1] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
+			mpd10.bd.block_length[2] = fsa_dev_ptr[cid].block_size  & 0xff;
+
+			if (capacity > 0xffffff) {
+				mpd10.bd.block_count[0] = 0xff;
+				mpd10.bd.block_count[1] = 0xff;
+				mpd10.bd.block_count[2] = 0xff;
+			} else {
+				mpd10.bd.block_count[0] = (capacity >> 16) & 0xff;
+				mpd10.bd.block_count[1] = (capacity >> 8) & 0xff;
+				mpd10.bd.block_count[2] = capacity  & 0xff;
+			}
+		}
 		if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
 		  ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
-			mode_buf[1] = 9;
-			mode_buf[8] = 8;
-			mode_buf[9] = 1;
-			mode_buf[10] = ((aac_cache & 6) == 2)
+			mpd10.hd.data_length[1] += 3;
+			mpd10.mpc_buf[0] = 8;
+			mpd10.mpc_buf[1] = 1;
+			mpd10.mpc_buf[2] = ((aac_cache & 6) == 2)
 				? 0 : 0x04; /* WCE */
-			mode_buf_length = 11;
+			mode_buf_length = sizeof(mpd10);
 			if (mode_buf_length > scsicmd->cmnd[8])
 				mode_buf_length = scsicmd->cmnd[8];
 		}
-		scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
+		scsi_sg_copy_from_buffer(scsicmd, (char *)&mpd10, mode_buf_length);
 
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 284db39..93579f3 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -857,6 +857,7 @@ struct fsa_dev_info {
 	u8		deleted;
 	char		devname[8];
 	struct sense_data sense_data;
+	u32		block_size;
 };
 
 struct fib {
@@ -960,6 +961,7 @@ struct aac_supplement_adapter_info
 #define AAC_OPTION_IGNORE_RESET		cpu_to_le32(0x00000002)
 #define AAC_OPTION_POWER_MANAGEMENT	cpu_to_le32(0x00000004)
 #define AAC_OPTION_DOORBELL_RESET	cpu_to_le32(0x00004000)
+#define AAC_OPTION_VARIABLE_BLOCK_SIZE	cpu_to_le32(0x00040000) /* 4KB sector size */
 #define AAC_SIS_VERSION_V3	3
 #define AAC_SIS_SLOT_UNKNOWN	0xFF
 
@@ -1589,6 +1591,7 @@ struct aac_srb_reply
 #define		VM_CtHostWrite64	20
 #define		VM_DrvErrTblLog		21
 #define		VM_NameServe64		22
+#define		VM_NameServeAllBlk	30
 
 #define		MAX_VMCOMMAND_NUM	23	/* used for sizing stats array - leave last */
 
@@ -1611,8 +1614,13 @@ struct aac_fsinfo {
 	__le32  fsInodeDensity;
 };	/* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */
 
+struct  aac_blockdevinfo {
+	__le32	block_size;
+};
+
 union aac_contentinfo {
-	struct aac_fsinfo filesys;	/* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */
+	struct	aac_fsinfo		filesys;	/* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */
+	struct	aac_blockdevinfo	bdevinfo;
 };
 
 /*
-- 
1.7.7.3

RE: [PATCH 3/7] aacraid: 4KB sector support

[Achim Leubner]

Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>


-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 4, 2015 9:38 AM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 3/7] aacraid: 4KB sector support

Add 4KB sector support

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aachba.c  |  195 +++++++++++++++++++++++++++++++---------
 drivers/scsi/aacraid/aacraid.h |   10 ++-
 2 files changed, 160 insertions(+), 45 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index b32e77d..0819644 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -111,6 +111,41 @@
 #define BYTE2(x) (unsigned char)((x) >> 16)  #define BYTE3(x) (unsigned char)((x) >> 24)
 
+/* MODE_SENSE data format */
+typedef struct {
+	struct {
+		u8	data_length;
+		u8	med_type;
+		u8	dev_par;
+		u8	bd_length;
+	} __attribute__((packed)) hd;
+	struct {
+		u8	dens_code;
+		u8	block_count[3];
+		u8	reserved;
+		u8	block_length[3];
+	} __attribute__((packed)) bd;
+		u8	mpc_buf[3];
+} __attribute__((packed)) aac_modep_data;
+
+/* MODE_SENSE_10 data format */
+typedef struct {
+	struct {
+		u8	data_length[2];
+		u8	med_type;
+		u8	dev_par;
+		u8	rsrvd[2];
+		u8	bd_length[2];
+	} __attribute__((packed)) hd;
+	struct {
+		u8	dens_code;
+		u8	block_count[3];
+		u8	reserved;
+		u8	block_length[3];
+	} __attribute__((packed)) bd;
+		u8	mpc_buf[3];
+} __attribute__((packed)) aac_modep10_data;
+
 /*------------------------------------------------------------------------------
  *              S T R U C T S / T Y P E D E F S
  *----------------------------------------------------------------------------*/
@@ -539,6 +574,13 @@ static void _aac_probe_container2(void * context, struct fib * fibptr)
 		if ((le32_to_cpu(dresp->status) == ST_OK) &&
 		    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
 		    (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
+			if (!(fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+			    AAC_OPTION_VARIABLE_BLOCK_SIZE)) {
+				dresp->mnt[0].fileinfo.bdevinfo.block_size = 0x200;
+				fsa_dev_ptr->block_size = 0x200;
+			} else {
+				fsa_dev_ptr->block_size = le32_to_cpu(dresp->mnt[0].fileinfo.bdevinfo.block_size);
+			}
 			fsa_dev_ptr->valid = 1;
 			/* sense_key holds the current state of the spin-up */
 			if (dresp->mnt[0].state & cpu_to_le32(FSCS_NOT_READY)) @@ -586,7 +628,12 @@ static void _aac_probe_container1(void * context, struct fib * fibptr)
 
 	dinfo = (struct aac_query_mount *)fib_data(fibptr);
 
-	dinfo->command = cpu_to_le32(VM_NameServe64);
+	if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+	    AAC_OPTION_VARIABLE_BLOCK_SIZE)
+		dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
+	else
+		dinfo->command = cpu_to_le32(VM_NameServe64);
+
 	dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 	dinfo->type = cpu_to_le32(FT_FILESYS);
 
@@ -621,7 +668,12 @@ static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(stru
 
 		dinfo = (struct aac_query_mount *)fib_data(fibptr);
 
-		dinfo->command = cpu_to_le32(VM_NameServe);
+		if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+		    AAC_OPTION_VARIABLE_BLOCK_SIZE)
+			dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
+		else
+			dinfo->command = cpu_to_le32(VM_NameServe);
+
 		dinfo->count = cpu_to_le32(scmd_id(scsicmd));
 		dinfo->type = cpu_to_le32(FT_FILESYS);
 		scsicmd->SCp.ptr = (char *)callback;
@@ -982,7 +1034,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 		memset(readcmd2, 0, sizeof(struct aac_raw_io2));
 		readcmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
 		readcmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		readcmd2->byteCount = cpu_to_le32(count<<9);
+		readcmd2->byteCount = cpu_to_le32(count * 
+dev->fsa_dev[scmd_id(cmd)].block_size);
 		readcmd2->cid = cpu_to_le16(scmd_id(cmd));
 		readcmd2->flags = cpu_to_le16(RIO2_IO_TYPE_READ);
 		ret = aac_build_sgraw2(cmd, readcmd2, @@ -997,7 +1049,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 		readcmd = (struct aac_raw_io *) fib_data(fib);
 		readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 		readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		readcmd->count = cpu_to_le32(count<<9);
+		readcmd->count = cpu_to_le32(count * 
+dev->fsa_dev[scmd_id(cmd)].block_size);
 		readcmd->cid = cpu_to_le16(scmd_id(cmd));
 		readcmd->flags = cpu_to_le16(RIO_TYPE_READ);
 		readcmd->bpTotal = 0;
@@ -1062,6 +1114,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32  {
 	u16 fibsize;
 	struct aac_read *readcmd;
+	struct aac_dev *dev = fib->dev;
 	long ret;
 
 	aac_fib_init(fib);
@@ -1069,7 +1122,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32
 	readcmd->command = cpu_to_le32(VM_CtBlockRead);
 	readcmd->cid = cpu_to_le32(scmd_id(cmd));
 	readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
-	readcmd->count = cpu_to_le32(count * 512);
+	readcmd->count = cpu_to_le32(count * 
+dev->fsa_dev[scmd_id(cmd)].block_size);
 
 	ret = aac_build_sg(cmd, &readcmd->sg);
 	if (ret < 0)
@@ -1104,7 +1157,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
 		memset(writecmd2, 0, sizeof(struct aac_raw_io2));
 		writecmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
 		writecmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		writecmd2->byteCount = cpu_to_le32(count<<9);
+		writecmd2->byteCount = cpu_to_le32(count * 
+dev->fsa_dev[scmd_id(cmd)].block_size);
 		writecmd2->cid = cpu_to_le16(scmd_id(cmd));
 		writecmd2->flags = (fua && ((aac_cache & 5) != 1) &&
 						   (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
@@ -1122,7 +1175,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
 		writecmd = (struct aac_raw_io *) fib_data(fib);
 		writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
 		writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
-		writecmd->count = cpu_to_le32(count<<9);
+		writecmd->count = cpu_to_le32(count * 
+dev->fsa_dev[scmd_id(cmd)].block_size);
 		writecmd->cid = cpu_to_le16(scmd_id(cmd));
 		writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
 						   (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
@@ -1190,6 +1243,7 @@ static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3  {
 	u16 fibsize;
 	struct aac_write *writecmd;
+	struct aac_dev *dev = fib->dev;
 	long ret;
 
 	aac_fib_init(fib);
@@ -1197,7 +1251,7 @@ static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 	writecmd->command = cpu_to_le32(VM_CtBlockWrite);
 	writecmd->cid = cpu_to_le32(scmd_id(cmd));
 	writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
-	writecmd->count = cpu_to_le32(count * 512);
+	writecmd->count = cpu_to_le32(count * 
+dev->fsa_dev[scmd_id(cmd)].block_size);
 	writecmd->sg.count = cpu_to_le32(1);
 	/* ->stable is not used - it did mean which type of write */
 
@@ -2329,10 +2383,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		cp[5] = (capacity >> 16) & 0xff;
 		cp[6] = (capacity >> 8) & 0xff;
 		cp[7] = (capacity >> 0) & 0xff;
-		cp[8] = 0;
-		cp[9] = 0;
-		cp[10] = 2;
-		cp[11] = 0;
+		cp[8] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
+		cp[9] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+		cp[10] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
+		cp[11] = (fsa_dev_ptr[cid].block_size) & 0xff;
 		cp[12] = 0;
 
 		alloc_len = ((scsicmd->cmnd[10] << 24) @@ -2369,10 +2423,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		cp[1] = (capacity >> 16) & 0xff;
 		cp[2] = (capacity >> 8) & 0xff;
 		cp[3] = (capacity >> 0) & 0xff;
-		cp[4] = 0;
-		cp[5] = 0;
-		cp[6] = 2;
-		cp[7] = 0;
+		cp[4] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
+		cp[5] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+		cp[6] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
+		cp[7] = (fsa_dev_ptr[cid].block_size) & 0xff;
 		scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
 		/* Do not cache partition table for arrays */
 		scsicmd->device->removable = 1;
@@ -2385,30 +2439,55 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 
 	case MODE_SENSE:
 	{
-		char mode_buf[7];
 		int mode_buf_length = 4;
+		u32 capacity;
+		aac_modep_data mpd;
+
+		if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
+			capacity = fsa_dev_ptr[cid].size - 1;
+		else
+			capacity = (u32)-1;
 
 		dprintk((KERN_DEBUG "MODE SENSE command.\n"));
-		mode_buf[0] = 3;	/* Mode data length */
-		mode_buf[1] = 0;	/* Medium type - default */
-		mode_buf[2] = 0;	/* Device-specific param,
+		memset((char *)&mpd, 0, sizeof(aac_modep_data));
+
+		mpd.hd.data_length = sizeof(mpd.hd) - 1;	/* Mode data length */
+		mpd.hd.med_type = 0;	/* Medium type - default */
+		mpd.hd.dev_par = 0;	/* Device-specific param,
 					   bit 8: 0/1 = write enabled/protected
 					   bit 4: 0/1 = FUA enabled */
 		if (dev->raw_io_interface && ((aac_cache & 5) != 1))
-			mode_buf[2] = 0x10;
-		mode_buf[3] = 0;	/* Block descriptor length */
+			mpd.hd.dev_par = 0x10;
+		if (scsicmd->cmnd[1] & 0x8) {
+			mpd.hd.bd_length = 0;	/* Block descriptor length */
+		} else {
+			mpd.hd.bd_length = sizeof(mpd.bd);
+			mpd.hd.data_length += mpd.hd.bd_length;
+			mpd.bd.block_length[0] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+			mpd.bd.block_length[1] = (fsa_dev_ptr[cid].block_size >> 8) &  0xff;
+			mpd.bd.block_length[2] = fsa_dev_ptr[cid].block_size  & 0xff;
+			if (capacity > 0xffffff) {
+				mpd.bd.block_count[0] = 0xff;
+				mpd.bd.block_count[1] = 0xff;
+				mpd.bd.block_count[2] = 0xff;
+			} else {
+				mpd.bd.block_count[0] = (capacity >> 16) & 0xff;
+				mpd.bd.block_count[1] = (capacity >> 8) & 0xff;
+				mpd.bd.block_count[2] = capacity  & 0xff;
+			}
+		}
 		if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
 		  ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
-			mode_buf[0] = 6;
-			mode_buf[4] = 8;
-			mode_buf[5] = 1;
-			mode_buf[6] = ((aac_cache & 6) == 2)
+			mpd.hd.data_length += 3;
+			mpd.mpc_buf[0] = 8;
+			mpd.mpc_buf[1] = 1;
+			mpd.mpc_buf[2] = ((aac_cache & 6) == 2)
 				? 0 : 0x04; /* WCE */
-			mode_buf_length = 7;
+			mode_buf_length = sizeof(mpd);
 			if (mode_buf_length > scsicmd->cmnd[4])
 				mode_buf_length = scsicmd->cmnd[4];
 		}
-		scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
+		scsi_sg_copy_from_buffer(scsicmd, (char *)&mpd, mode_buf_length);
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
 
@@ -2416,34 +2495,62 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 	}
 	case MODE_SENSE_10:
 	{
-		char mode_buf[11];
+		u32 capacity;
 		int mode_buf_length = 8;
+		aac_modep10_data mpd10;
+
+		if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
+			capacity = fsa_dev_ptr[cid].size - 1;
+		else
+			capacity = (u32)-1;
 
 		dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
-		mode_buf[0] = 0;	/* Mode data length (MSB) */
-		mode_buf[1] = 6;	/* Mode data length (LSB) */
-		mode_buf[2] = 0;	/* Medium type - default */
-		mode_buf[3] = 0;	/* Device-specific param,
+		memset((char *)&mpd10, 0, sizeof(aac_modep10_data));
+		mpd10.hd.data_length[0] = 0;	/* Mode data length (MSB) */
+		mpd10.hd.data_length[1] = sizeof(mpd10.hd) - 1;	/* Mode data length (LSB) */
+		mpd10.hd.med_type = 0;	/* Medium type - default */
+		mpd10.hd.dev_par = 0;	/* Device-specific param,
 					   bit 8: 0/1 = write enabled/protected
 					   bit 4: 0/1 = FUA enabled */
 		if (dev->raw_io_interface && ((aac_cache & 5) != 1))
-			mode_buf[3] = 0x10;
-		mode_buf[4] = 0;	/* reserved */
-		mode_buf[5] = 0;	/* reserved */
-		mode_buf[6] = 0;	/* Block descriptor length (MSB) */
-		mode_buf[7] = 0;	/* Block descriptor length (LSB) */
+			mpd10.hd.dev_par = 0x10;
+		mpd10.hd.rsrvd[0] = 0;	/* reserved */
+		mpd10.hd.rsrvd[1] = 0;	/* reserved */
+		if (scsicmd->cmnd[1] & 0x8) {
+			mpd10.hd.bd_length[0] = 0;	/* Block descriptor length (MSB) */
+			mpd10.hd.bd_length[1] = 0;	/* Block descriptor length (LSB) */
+		} else {
+			mpd10.hd.bd_length[0] = 0;
+			mpd10.hd.bd_length[1] = sizeof(mpd10.bd);
+
+			mpd10.hd.data_length[1] += mpd10.hd.bd_length[1];
+
+			mpd10.bd.block_length[0] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
+			mpd10.bd.block_length[1] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
+			mpd10.bd.block_length[2] = fsa_dev_ptr[cid].block_size  & 0xff;
+
+			if (capacity > 0xffffff) {
+				mpd10.bd.block_count[0] = 0xff;
+				mpd10.bd.block_count[1] = 0xff;
+				mpd10.bd.block_count[2] = 0xff;
+			} else {
+				mpd10.bd.block_count[0] = (capacity >> 16) & 0xff;
+				mpd10.bd.block_count[1] = (capacity >> 8) & 0xff;
+				mpd10.bd.block_count[2] = capacity  & 0xff;
+			}
+		}
 		if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
 		  ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
-			mode_buf[1] = 9;
-			mode_buf[8] = 8;
-			mode_buf[9] = 1;
-			mode_buf[10] = ((aac_cache & 6) == 2)
+			mpd10.hd.data_length[1] += 3;
+			mpd10.mpc_buf[0] = 8;
+			mpd10.mpc_buf[1] = 1;
+			mpd10.mpc_buf[2] = ((aac_cache & 6) == 2)
 				? 0 : 0x04; /* WCE */
-			mode_buf_length = 11;
+			mode_buf_length = sizeof(mpd10);
 			if (mode_buf_length > scsicmd->cmnd[8])
 				mode_buf_length = scsicmd->cmnd[8];
 		}
-		scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
+		scsi_sg_copy_from_buffer(scsicmd, (char *)&mpd10, mode_buf_length);
 
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 284db39..93579f3 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -857,6 +857,7 @@ struct fsa_dev_info {
 	u8		deleted;
 	char		devname[8];
 	struct sense_data sense_data;
+	u32		block_size;
 };
 
 struct fib {
@@ -960,6 +961,7 @@ struct aac_supplement_adapter_info
 #define AAC_OPTION_IGNORE_RESET		cpu_to_le32(0x00000002)
 #define AAC_OPTION_POWER_MANAGEMENT	cpu_to_le32(0x00000004)
 #define AAC_OPTION_DOORBELL_RESET	cpu_to_le32(0x00004000)
+#define AAC_OPTION_VARIABLE_BLOCK_SIZE	cpu_to_le32(0x00040000) /* 4KB sector size */
 #define AAC_SIS_VERSION_V3	3
 #define AAC_SIS_SLOT_UNKNOWN	0xFF
 
@@ -1589,6 +1591,7 @@ struct aac_srb_reply
 #define		VM_CtHostWrite64	20
 #define		VM_DrvErrTblLog		21
 #define		VM_NameServe64		22
+#define		VM_NameServeAllBlk	30
 
 #define		MAX_VMCOMMAND_NUM	23	/* used for sizing stats array - leave last */
 
@@ -1611,8 +1614,13 @@ struct aac_fsinfo {
 	__le32  fsInodeDensity;
 };	/* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */
 
+struct  aac_blockdevinfo {
+	__le32	block_size;
+};
+
 union aac_contentinfo {
-	struct aac_fsinfo filesys;	/* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */
+	struct	aac_fsinfo		filesys;	/* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */
+	struct	aac_blockdevinfo	bdevinfo;
 };
 
 /*
--
1.7.7.3

Re: [PATCH 3/7] aacraid: 4KB sector support

[Hannes Reinecke]

On 03/17/2015 04:26 PM, Achim Leubner wrote:
> Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>
> 
> 
> -----Original Message-----
> From: Mahesh Rajashekhara 
> Sent: Wednesday, March 4, 2015 9:38 AM
> To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
> Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
> Subject: [PATCH 3/7] aacraid: 4KB sector support
> 
> Add 4KB sector support
> 
> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
> ---
>  drivers/scsi/aacraid/aachba.c  |  195 +++++++++++++++++++++++++++++++---------
>  drivers/scsi/aacraid/aacraid.h |   10 ++-
>  2 files changed, 160 insertions(+), 45 deletions(-)
> 
> diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index b32e77d..0819644 100644
> --- a/drivers/scsi/aacraid/aachba.c
> +++ b/drivers/scsi/aacraid/aachba.c
> @@ -111,6 +111,41 @@
>  #define BYTE2(x) (unsigned char)((x) >> 16)  #define BYTE3(x) (unsigned char)((x) >> 24)
>  
> +/* MODE_SENSE data format */
> +typedef struct {
> +	struct {
> +		u8	data_length;
> +		u8	med_type;
> +		u8	dev_par;
> +		u8	bd_length;
> +	} __attribute__((packed)) hd;
> +	struct {
> +		u8	dens_code;
> +		u8	block_count[3];
> +		u8	reserved;
> +		u8	block_length[3];
> +	} __attribute__((packed)) bd;
> +		u8	mpc_buf[3];
> +} __attribute__((packed)) aac_modep_data;
> +
> +/* MODE_SENSE_10 data format */
> +typedef struct {
> +	struct {
> +		u8	data_length[2];
> +		u8	med_type;
> +		u8	dev_par;
> +		u8	rsrvd[2];
> +		u8	bd_length[2];
> +	} __attribute__((packed)) hd;
> +	struct {
> +		u8	dens_code;
> +		u8	block_count[3];
> +		u8	reserved;
> +		u8	block_length[3];
> +	} __attribute__((packed)) bd;
> +		u8	mpc_buf[3];
> +} __attribute__((packed)) aac_modep10_data;
> +
>  /*------------------------------------------------------------------------------
>   *              S T R U C T S / T Y P E D E F S
>   *----------------------------------------------------------------------------*/
> @@ -539,6 +574,13 @@ static void _aac_probe_container2(void * context, struct fib * fibptr)
>  		if ((le32_to_cpu(dresp->status) == ST_OK) &&
>  		    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
>  		    (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
> +			if (!(fibptr->dev->supplement_adapter_info.SupportedOptions2 &
> +			    AAC_OPTION_VARIABLE_BLOCK_SIZE)) {
> +				dresp->mnt[0].fileinfo.bdevinfo.block_size = 0x200;
> +				fsa_dev_ptr->block_size = 0x200;
> +			} else {
> +				fsa_dev_ptr->block_size = le32_to_cpu(dresp->mnt[0].fileinfo.bdevinfo.block_size);
> +			}
>  			fsa_dev_ptr->valid = 1;
>  			/* sense_key holds the current state of the spin-up */
>  			if (dresp->mnt[0].state & cpu_to_le32(FSCS_NOT_READY)) @@ -586,7 +628,12 @@ static void _aac_probe_container1(void * context, struct fib * fibptr)
>  
>  	dinfo = (struct aac_query_mount *)fib_data(fibptr);
>  
> -	dinfo->command = cpu_to_le32(VM_NameServe64);
> +	if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
> +	    AAC_OPTION_VARIABLE_BLOCK_SIZE)
> +		dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
> +	else
> +		dinfo->command = cpu_to_le32(VM_NameServe64);
> +
>  	dinfo->count = cpu_to_le32(scmd_id(scsicmd));
>  	dinfo->type = cpu_to_le32(FT_FILESYS);
>  
> @@ -621,7 +668,12 @@ static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(stru
>  
>  		dinfo = (struct aac_query_mount *)fib_data(fibptr);
>  
> -		dinfo->command = cpu_to_le32(VM_NameServe);
> +		if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
> +		    AAC_OPTION_VARIABLE_BLOCK_SIZE)
> +			dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
> +		else
> +			dinfo->command = cpu_to_le32(VM_NameServe);
> +
>  		dinfo->count = cpu_to_le32(scmd_id(scsicmd));
>  		dinfo->type = cpu_to_le32(FT_FILESYS);
>  		scsicmd->SCp.ptr = (char *)callback;
> @@ -982,7 +1034,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
>  		memset(readcmd2, 0, sizeof(struct aac_raw_io2));
>  		readcmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
>  		readcmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
> -		readcmd2->byteCount = cpu_to_le32(count<<9);
> +		readcmd2->byteCount = cpu_to_le32(count * 
> +dev->fsa_dev[scmd_id(cmd)].block_size);

Wrong indentation.

>  		readcmd2->cid = cpu_to_le16(scmd_id(cmd));
>  		readcmd2->flags = cpu_to_le16(RIO2_IO_TYPE_READ);
>  		ret = aac_build_sgraw2(cmd, readcmd2, @@ -997,7 +1049,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
>  		readcmd = (struct aac_raw_io *) fib_data(fib);
>  		readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
>  		readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
> -		readcmd->count = cpu_to_le32(count<<9);
> +		readcmd->count = cpu_to_le32(count * 
> +dev->fsa_dev[scmd_id(cmd)].block_size);

Same here.

>  		readcmd->cid = cpu_to_le16(scmd_id(cmd));
>  		readcmd->flags = cpu_to_le16(RIO_TYPE_READ);
>  		readcmd->bpTotal = 0;
> @@ -1062,6 +1114,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32  {
>  	u16 fibsize;
>  	struct aac_read *readcmd;
> +	struct aac_dev *dev = fib->dev;
>  	long ret;
>  
>  	aac_fib_init(fib);
> @@ -1069,7 +1122,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32
>  	readcmd->command = cpu_to_le32(VM_CtBlockRead);
>  	readcmd->cid = cpu_to_le32(scmd_id(cmd));
>  	readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
> -	readcmd->count = cpu_to_le32(count * 512);
> +	readcmd->count = cpu_to_le32(count * 
> +dev->fsa_dev[scmd_id(cmd)].block_size);
>  

Here.

>  	ret = aac_build_sg(cmd, &readcmd->sg);
>  	if (ret < 0)
> @@ -1104,7 +1157,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
>  		memset(writecmd2, 0, sizeof(struct aac_raw_io2));
>  		writecmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
>  		writecmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
> -		writecmd2->byteCount = cpu_to_le32(count<<9);
> +		writecmd2->byteCount = cpu_to_le32(count * 
> +dev->fsa_dev[scmd_id(cmd)].block_size);

Here.

>  		writecmd2->cid = cpu_to_le16(scmd_id(cmd));
>  		writecmd2->flags = (fua && ((aac_cache & 5) != 1) &&
>  						   (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
> @@ -1122,7 +1175,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
>  		writecmd = (struct aac_raw_io *) fib_data(fib);
>  		writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
>  		writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
> -		writecmd->count = cpu_to_le32(count<<9);
> +		writecmd->count = cpu_to_le32(count * 
> +dev->fsa_dev[scmd_id(cmd)].block_size);

Here.

>  		writecmd->cid = cpu_to_le16(scmd_id(cmd));
>  		writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
>  						   (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
> @@ -1190,6 +1243,7 @@ static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3  {
>  	u16 fibsize;
>  	struct aac_write *writecmd;
> +	struct aac_dev *dev = fib->dev;
>  	long ret;
>  
>  	aac_fib_init(fib);
> @@ -1197,7 +1251,7 @@ static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
>  	writecmd->command = cpu_to_le32(VM_CtBlockWrite);
>  	writecmd->cid = cpu_to_le32(scmd_id(cmd));
>  	writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
> -	writecmd->count = cpu_to_le32(count * 512);
> +	writecmd->count = cpu_to_le32(count * 
> +dev->fsa_dev[scmd_id(cmd)].block_size);

And here.

>  	writecmd->sg.count = cpu_to_le32(1);
>  	/* ->stable is not used - it did mean which type of write */
>  
> @@ -2329,10 +2383,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
>  		cp[5] = (capacity >> 16) & 0xff;
>  		cp[6] = (capacity >> 8) & 0xff;
>  		cp[7] = (capacity >> 0) & 0xff;
> -		cp[8] = 0;
> -		cp[9] = 0;
> -		cp[10] = 2;
> -		cp[11] = 0;
> +		cp[8] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
> +		cp[9] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
> +		cp[10] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
> +		cp[11] = (fsa_dev_ptr[cid].block_size) & 0xff;
>  		cp[12] = 0;
>  
>  		alloc_len = ((scsicmd->cmnd[10] << 24) @@ -2369,10 +2423,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
>  		cp[1] = (capacity >> 16) & 0xff;
>  		cp[2] = (capacity >> 8) & 0xff;
>  		cp[3] = (capacity >> 0) & 0xff;
> -		cp[4] = 0;
> -		cp[5] = 0;
> -		cp[6] = 2;
> -		cp[7] = 0;
> +		cp[4] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
> +		cp[5] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
> +		cp[6] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
> +		cp[7] = (fsa_dev_ptr[cid].block_size) & 0xff;
>  		scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
>  		/* Do not cache partition table for arrays */
>  		scsicmd->device->removable = 1;
> @@ -2385,30 +2439,55 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
>  
>  	case MODE_SENSE:
>  	{
> -		char mode_buf[7];
>  		int mode_buf_length = 4;
> +		u32 capacity;
> +		aac_modep_data mpd;
> +
> +		if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
> +			capacity = fsa_dev_ptr[cid].size - 1;
> +		else
> +			capacity = (u32)-1;
>  
>  		dprintk((KERN_DEBUG "MODE SENSE command.\n"));
> -		mode_buf[0] = 3;	/* Mode data length */
> -		mode_buf[1] = 0;	/* Medium type - default */
> -		mode_buf[2] = 0;	/* Device-specific param,
> +		memset((char *)&mpd, 0, sizeof(aac_modep_data));
> +
> +		mpd.hd.data_length = sizeof(mpd.hd) - 1;	/* Mode data length */
> +		mpd.hd.med_type = 0;	/* Medium type - default */
> +		mpd.hd.dev_par = 0;	/* Device-specific param,
>  					   bit 8: 0/1 = write enabled/protected
>  					   bit 4: 0/1 = FUA enabled */
>  		if (dev->raw_io_interface && ((aac_cache & 5) != 1))
> -			mode_buf[2] = 0x10;
> -		mode_buf[3] = 0;	/* Block descriptor length */
> +			mpd.hd.dev_par = 0x10;
> +		if (scsicmd->cmnd[1] & 0x8) {
> +			mpd.hd.bd_length = 0;	/* Block descriptor length */
> +		} else {

No braces around conditions in a single line.

Remember to run './scripts/checkpatch.pl' before submission.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 4/7] aacraid: MSI-x support

[Mahesh Rajashekhara]

Add MSI-x interrupt mode support.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aachba.c   |    6 +-
 drivers/scsi/aacraid/aacraid.h  |   79 ++++++++-
 drivers/scsi/aacraid/comminit.c |   86 +++++++++-
 drivers/scsi/aacraid/commsup.c  |   19 ++-
 drivers/scsi/aacraid/dpcsup.c   |    9 +-
 drivers/scsi/aacraid/linit.c    |   18 ++-
 drivers/scsi/aacraid/src.c      |  365 +++++++++++++++++++++++++++++----------
 7 files changed, 473 insertions(+), 109 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 0819644..eb524e6 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -473,7 +473,7 @@ static void get_container_name_callback(void *context, struct fib * fibptr)
 	if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 	 && (get_name_reply->data[0] != '\0')) {
 		char *sp = get_name_reply->data;
-		sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
+		sp[sizeof(((struct aac_get_name_resp *)NULL)->data)] = '\0';
 		while (*sp == ' ')
 			++sp;
 		if (*sp) {
@@ -613,7 +613,9 @@ static void _aac_probe_container1(void * context, struct fib * fibptr)
 	int status;
 
 	dresp = (struct aac_mount *) fib_data(fibptr);
-	dresp->mnt[0].capacityhigh = 0;
+	if (!(fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+	    AAC_OPTION_VARIABLE_BLOCK_SIZE))
+		dresp->mnt[0].capacityhigh = 0;
 	if ((le32_to_cpu(dresp->status) != ST_OK) ||
 	    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
 		_aac_probe_container2(context, fibptr);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 93579f3..c162a65 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -6,11 +6,61 @@
 #define nblank(x) _nblank(x)[0]
 
 #include <linux/interrupt.h>
+#include <linux/pci.h>
 
 /*------------------------------------------------------------------------------
  *              D E F I N E S
  *----------------------------------------------------------------------------*/
 
+#define AAC_MAX_MSIX		32	/* vectors */
+#define AAC_PCI_MSI_ENABLE	0x8000
+
+enum {
+	AAC_ENABLE_INTERRUPT	= 0x0,
+	AAC_DISABLE_INTERRUPT,
+	AAC_ENABLE_MSIX,
+	AAC_DISABLE_MSIX,
+	AAC_CLEAR_AIF_BIT,
+	AAC_CLEAR_SYNC_BIT,
+	AAC_ENABLE_INTX
+};
+
+#define AAC_INT_MODE_INTX		(1<<0)
+#define AAC_INT_MODE_MSI		(1<<1)
+#define AAC_INT_MODE_AIF		(1<<2)
+#define AAC_INT_MODE_SYNC		(1<<3)
+
+#define AAC_INT_ENABLE_TYPE1_INTX	0xfffffffb
+#define AAC_INT_ENABLE_TYPE1_MSIX	0xfffffffa
+#define AAC_INT_DISABLE_ALL		0xffffffff
+
+/* Bit definitions in IOA->Host Interrupt Register */
+#define PMC_TRANSITION_TO_OPERATIONAL	(0x80000000 >> 0)
+#define PMC_IOARCB_TRANSFER_FAILED	(0x80000000 >> 3)
+#define PMC_IOA_UNIT_CHECK		(0x80000000 >> 4)
+#define PMC_NO_HOST_RRQ_FOR_CMD_RESPONSE (0x80000000 >> 5)
+#define PMC_CRITICAL_IOA_OP_IN_PROGRESS	(0x80000000 >> 6)
+#define PMC_IOARRIN_LOST		(0x80000000 >> 27)
+#define PMC_SYSTEM_BUS_MMIO_ERROR	(0x80000000 >> 28)
+#define PMC_IOA_PROCESSOR_IN_ERROR_STATE (0x80000000 >> 29)
+#define PMC_HOST_RRQ_VALID		(0x80000000 >> 30)
+#define PMC_OPERATIONAL_STATUS		(0x80000000 >> 0)
+#define PMC_ALLOW_MSIX_VECTOR0		(0x80000000 >> 31)
+
+#define PMC_IOA_ERROR_INTERRUPTS	(PMC_IOARCB_TRANSFER_FAILED | \
+					 PMC_IOA_UNIT_CHECK | \
+					 PMC_NO_HOST_RRQ_FOR_CMD_RESPONSE | \
+					 PMC_IOARRIN_LOST | \
+					 PMC_SYSTEM_BUS_MMIO_ERROR | \
+					 PMC_IOA_PROCESSOR_IN_ERROR_STATE)
+
+#define PMC_ALL_INTERRUPT_BITS		(PMC_IOA_ERROR_INTERRUPTS | \
+					 PMC_HOST_RRQ_VALID | \
+					 PMC_TRANSITION_TO_OPERATIONAL | \
+					 PMC_ALLOW_MSIX_VECTOR0)
+#define	PMC_GLOBAL_INT_BIT2		0x00000004
+#define	PMC_GLOBAL_INT_BIT0		0x00000001
+
 #ifndef AAC_DRIVER_BUILD
 # define AAC_DRIVER_BUILD 30300
 # define AAC_DRIVER_BRANCH "-ms"
@@ -36,6 +86,7 @@
 #define CONTAINER_TO_ID(cont)		(cont)
 #define CONTAINER_TO_LUN(cont)		(0)
 
+#define PMC_DEVICE_S6	0x28b
 #define PMC_DEVICE_S7	0x28c
 #define PMC_DEVICE_S8	0x28d
 #define PMC_DEVICE_S9	0x28f
@@ -434,7 +485,7 @@ enum fib_xfer_state {
 struct aac_init
 {
 	__le32	InitStructRevision;
-	__le32	MiniPortRevision;
+	__le32	NoOfMSIXVectors;
 	__le32	fsrev;
 	__le32	CommHeaderAddress;
 	__le32	FastIoCommAreaAddress;
@@ -755,7 +806,8 @@ struct rkt_registers {
 
 struct src_mu_registers {
 				/*	PCI*| Name */
-	__le32	reserved0[8];	/*	00h | Reserved */
+	__le32	reserved0[6];	/*	00h | Reserved */
+	__le32	IOAR[2];	/*	18h | IOA->host interrupt register */
 	__le32	IDR;		/*	20h | Inbound Doorbell Register */
 	__le32	IISR;		/*	24h | Inbound Int. Status Register */
 	__le32	reserved1[3];	/*	28h | Reserved */
@@ -767,17 +819,18 @@ struct src_mu_registers {
 	__le32	OMR;		/*	bch | Outbound Message Register */
 	__le32	IQ_L;		/*  c0h | Inbound Queue (Low address) */
 	__le32	IQ_H;		/*  c4h | Inbound Queue (High address) */
+	__le32	ODR_MSI;	/*  c8h | MSI register for sync./AIF */
 };
 
 struct src_registers {
-	struct src_mu_registers MUnit;	/* 00h - c7h */
+	struct src_mu_registers MUnit;	/* 00h - cbh */
 	union {
 		struct {
-			__le32 reserved1[130790];	/* c8h - 7fc5fh */
+			__le32 reserved1[130789];	/* cch - 7fc5fh */
 			struct src_inbound IndexRegs;	/* 7fc60h */
 		} tupelo;
 		struct {
-			__le32 reserved1[974];		/* c8h - fffh */
+			__le32 reserved1[973];		/* cch - fffh */
 			struct src_inbound IndexRegs;	/* 1000h */
 		} denali;
 	} u;
@@ -1028,6 +1081,11 @@ struct aac_bus_info_response {
 #define AAC_OPT_NEW_COMM_TYPE3		cpu_to_le32(1<<30)
 #define AAC_OPT_NEW_COMM_TYPE4		cpu_to_le32(1<<31)
 
+/* MSIX context */
+struct aac_msix_ctx {
+	int		vector_no;
+	struct aac_dev	*dev;
+};
 
 struct aac_dev
 {
@@ -1083,8 +1141,9 @@ struct aac_dev
 						 * if AAC_COMM_MESSAGE_TYPE1 */
 
 	dma_addr_t		host_rrq_pa;	/* phys. address */
-	u32			host_rrq_idx;	/* index into rrq buffer */
-
+	u32			host_rrq_idx[AAC_MAX_MSIX];	/* index into rrq buffer */
+	atomic_t		rrq_outstanding[AAC_MAX_MSIX];
+	u32			fibs_pushed_no;
 	struct pci_dev		*pdev;		/* Our PCI interface */
 	void *			printfbuf;	/* pointer to buffer used for printf's from the adapter */
 	void *			comm_addr;	/* Base address of Comm area */
@@ -1153,6 +1212,11 @@ struct aac_dev
 	int			sync_mode;
 	struct fib		*sync_fib;
 	struct list_head	sync_fib_list;
+	u32			max_msix;	/* max. MSI-X vectors */
+	u32			vector_cap;	/* MSI-X vector capab.*/
+	int			msi_enabled;	/* MSI/MSI-X enabled */
+	struct msix_entry	msixentry[AAC_MAX_MSIX];
+	struct aac_msix_ctx	aac_msix[AAC_MAX_MSIX]; /* context */
 };
 
 #define aac_adapter_interrupt(dev) \
@@ -2035,6 +2099,7 @@ void aac_consumer_free(struct aac_dev * dev, struct aac_queue * q, u32 qnum);
 int aac_fib_complete(struct fib * context);
 #define fib_data(fibctx) ((void *)(fibctx)->hw_fib_va->data)
 struct aac_dev *aac_init_adapter(struct aac_dev *dev);
+void aac_src_access_devreg(struct aac_dev *dev, int mode);
 int aac_get_config_status(struct aac_dev *dev, int commit_flag);
 int aac_get_containers(struct aac_dev *dev);
 int aac_scsi_cmd(struct scsi_cmnd *cmd);
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 177b094..29c35c8 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -43,6 +43,8 @@
 
 #include "aacraid.h"
 
+static void aac_define_int_mode(struct aac_dev *dev);
+
 struct aac_common aac_config = {
 	.irq_mod = 1
 };
@@ -91,7 +93,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 	init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION);
 	if (dev->max_fib_size != sizeof(struct hw_fib))
 		init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4);
-	init->MiniPortRevision = cpu_to_le32(Sa_MINIPORT_REVISION);
+	init->NoOfMSIXVectors = cpu_to_le32(Sa_MINIPORT_REVISION);
 	init->fsrev = cpu_to_le32(dev->fsrev);
 
 	/*
@@ -140,7 +142,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 			INITFLAGS_NEW_COMM_TYPE2_SUPPORTED | INITFLAGS_FAST_JBOD_SUPPORTED);
 		init->HostRRQ_AddrHigh = cpu_to_le32((u32)((u64)dev->host_rrq_pa >> 32));
 		init->HostRRQ_AddrLow = cpu_to_le32((u32)(dev->host_rrq_pa & 0xffffffff));
-		init->MiniPortRevision = cpu_to_le32(0L);		/* number of MSI-X */
+		init->NoOfMSIXVectors = cpu_to_le32(dev->max_msix);	/* number of MSI-X */
 		dprintk((KERN_WARNING"aacraid: New Comm Interface type2 enabled\n"));
 	}
 
@@ -228,6 +230,11 @@ int aac_send_shutdown(struct aac_dev * dev)
 	/* FIB should be freed only after getting the response from the F/W */
 	if (status != -ERESTARTSYS)
 		aac_fib_free(fibctx);
+	if ((dev->pdev->device == PMC_DEVICE_S7 ||
+	     dev->pdev->device == PMC_DEVICE_S8 ||
+	     dev->pdev->device == PMC_DEVICE_S9) &&
+	     dev->msi_enabled)
+		aac_src_access_devreg(dev, AAC_ENABLE_INTX);
 	return status;
 }
 
@@ -388,6 +395,8 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 			}
 		}
 	}
+	dev->max_msix = 0;
+	dev->msi_enabled = 0;
 	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
 	  0, 0, 0, 0, 0, 0,
 	  status+0, status+1, status+2, status+3, status+4))
@@ -461,6 +470,11 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	if (host->can_queue > AAC_NUM_IO_FIB)
 		host->can_queue = AAC_NUM_IO_FIB;
 
+	if (dev->pdev->device == PMC_DEVICE_S6 ||
+	    dev->pdev->device == PMC_DEVICE_S7 ||
+	    dev->pdev->device == PMC_DEVICE_S8 ||
+	    dev->pdev->device == PMC_DEVICE_S9)
+		aac_define_int_mode(dev);
 	/*
 	 *	Ok now init the communication subsystem
 	 */
@@ -489,4 +503,70 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	return dev;
 }
 
-    
+static void aac_define_int_mode(struct aac_dev *dev)
+{
+
+	int i, msi_count;
+
+	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
+	if (dev->max_msix == 0 ||
+	    dev->pdev->device == PMC_DEVICE_S6 ||
+	    dev->sync_mode) {
+		dev->max_msix = 1;
+		dev->vector_cap = dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB;
+		return;
+	}
+
+	msi_count = min(dev->max_msix,
+		(unsigned int)num_online_cpus());
+
+	dev->max_msix = msi_count;
+
+	if (msi_count > AAC_MAX_MSIX)
+		msi_count = AAC_MAX_MSIX;
+
+	for (i = 0; i < msi_count; i++)
+		dev->msixentry[i].entry = i;
+
+	if (msi_count > 1 && pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) {
+
+		i = pci_enable_msix(dev->pdev, dev->msixentry, msi_count);
+		 /* Check how many MSIX vectors are allocated */
+		if (i >= 0) {
+			dev->msi_enabled = 1;
+			if (i) {
+				msi_count = i;
+				if (pci_enable_msix(dev->pdev, dev->msixentry, msi_count)) {
+					dev->msi_enabled = 0;
+					printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n",
+							dev->name, dev->id, i);
+				}
+			}
+		} else {
+			dev->msi_enabled = 0;
+			printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n",
+					dev->name, dev->id, i);
+		}
+	}
+
+	if (!dev->msi_enabled) {
+		msi_count = 1;
+		i = !pci_enable_msi(dev->pdev);
+
+		if (i) {
+			dev->msi_enabled = 1;
+			dev->msi = 1;
+		} else {
+			printk(KERN_ERR "%s%d: MSI not supported!! Will try INTx 0x%x.\n",
+					dev->name, dev->id, i);
+		}
+	}
+
+	if (!dev->msi_enabled)
+		dev->max_msix = msi_count = 1;
+	else {
+		if (dev->max_msix > msi_count)
+			dev->max_msix = msi_count;
+	}
+	dev->vector_cap = (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) / msi_count;
+}
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 090ba68..83c5d3f 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -868,7 +868,7 @@ void aac_printf(struct aac_dev *dev, u32 val)
  *	dispatches it to the appropriate routine for handling.
  */
 
-#define AIF_SNIFF_TIMEOUT	(30*HZ)
+#define AIF_SNIFF_TIMEOUT	(500*HZ)
 static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 {
 	struct hw_fib * hw_fib = fibptr->hw_fib_va;
@@ -1251,7 +1251,7 @@ retry_next:
 static int _aac_reset_adapter(struct aac_dev *aac, int forced)
 {
 	int index, quirks;
-	int retval;
+	int retval, i;
 	struct Scsi_Host *host;
 	struct scsi_device *dev;
 	struct scsi_cmnd *command;
@@ -1319,7 +1319,20 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced)
 	aac->comm_phys = 0;
 	kfree(aac->queues);
 	aac->queues = NULL;
-	free_irq(aac->pdev->irq, aac);
+	if (aac->pdev->device == PMC_DEVICE_S6 ||
+	    aac->pdev->device == PMC_DEVICE_S7 ||
+	    aac->pdev->device == PMC_DEVICE_S8 ||
+	    aac->pdev->device == PMC_DEVICE_S9) {
+		if (aac->max_msix > 1) {
+			for (i = 0; i < aac->max_msix; i++)
+				free_irq(aac->msixentry[i].vector, &(aac->aac_msix[i]));
+			pci_disable_msix(aac->pdev);
+		} else {
+			free_irq(aac->pdev->irq, &(aac->aac_msix[0]));
+		}
+	} else {
+		free_irq(aac->pdev->irq, aac);
+	}
 	if (aac->msi)
 		pci_disable_msi(aac->pdev);
 	kfree(aac->fsa_dev);
diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c
index d81b281..2e39466 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -389,8 +389,13 @@ unsigned int aac_intr_normal(struct aac_dev *dev, u32 index,
 			 *	NOTE:  we cannot touch the fib after this
 			 *	    call, because it may have been deallocated.
 			 */
-			fib->flags &= FIB_CONTEXT_FLAG_FASTRESP;
-			fib->callback(fib->callback_data, fib);
+			if (likely(fib->callback && fib->callback_data)) {
+				fib->flags &= FIB_CONTEXT_FLAG_FASTRESP;
+				fib->callback(fib->callback_data, fib);
+			} else {
+				aac_fib_complete(fib);
+				aac_fib_free(fib);
+			}
 		} else {
 			unsigned long flagv;
 	  		dprintk((KERN_INFO "event_wait up\n"));
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index fdcdf9f..7813a9b 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1082,6 +1082,8 @@ static struct scsi_host_template aac_driver_template = {
 
 static void __aac_shutdown(struct aac_dev * aac)
 {
+	int i;
+
 	if (aac->aif_thread) {
 		int i;
 		/* Clear out events first */
@@ -1095,9 +1097,23 @@ static void __aac_shutdown(struct aac_dev * aac)
 	}
 	aac_send_shutdown(aac);
 	aac_adapter_disable_int(aac);
-	free_irq(aac->pdev->irq, aac);
+	if (aac->pdev->device == PMC_DEVICE_S6 ||
+	    aac->pdev->device == PMC_DEVICE_S7 ||
+	    aac->pdev->device == PMC_DEVICE_S8 ||
+	    aac->pdev->device == PMC_DEVICE_S9) {
+		if (aac->max_msix > 1) {
+			for (i = 0; i < aac->max_msix; i++)
+				free_irq(aac->msixentry[i].vector, &(aac->aac_msix[i]));
+		} else {
+			free_irq(aac->pdev->irq, &(aac->aac_msix[0]));
+		}
+	} else {
+		free_irq(aac->pdev->irq, aac);
+	}
 	if (aac->msi)
 		pci_disable_msi(aac->pdev);
+	else if (aac->max_msix > 1)
+		pci_disable_msix(aac->pdev);
 }
 
 static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index 9c65aed..c010248 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -44,98 +44,124 @@
 
 #include "aacraid.h"
 
-static irqreturn_t aac_src_intr_message(int irq, void *dev_id)
+static int aac_src_get_sync_status(struct aac_dev *dev);
+
+irqreturn_t aac_src_intr_message(int irq, void *dev_id)
 {
-	struct aac_dev *dev = dev_id;
+	struct aac_msix_ctx *ctx;
+	struct aac_dev *dev;
 	unsigned long bellbits, bellbits_shifted;
-	int our_interrupt = 0;
-	int isFastResponse;
+	int vector_no;
+	int isFastResponse, mode;
 	u32 index, handle;
 
-	bellbits = src_readl(dev, MUnit.ODR_R);
-	if (bellbits & PmDoorBellResponseSent) {
-		bellbits = PmDoorBellResponseSent;
-		/* handle async. status */
-		src_writel(dev, MUnit.ODR_C, bellbits);
-		src_readl(dev, MUnit.ODR_C);
-		our_interrupt = 1;
-		index = dev->host_rrq_idx;
-		for (;;) {
-			isFastResponse = 0;
-			/* remove toggle bit (31) */
-			handle = le32_to_cpu(dev->host_rrq[index]) & 0x7fffffff;
-			/* check fast response bit (30) */
-			if (handle & 0x40000000)
-				isFastResponse = 1;
-			handle &= 0x0000ffff;
-			if (handle == 0)
-				break;
-
-			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
-
-			dev->host_rrq[index++] = 0;
-			if (index == dev->scsi_host_ptr->can_queue +
-						AAC_NUM_MGT_FIB)
-				index = 0;
-			dev->host_rrq_idx = index;
+	ctx = (struct aac_msix_ctx *)dev_id;
+	dev = ctx->dev;
+	vector_no = ctx->vector_no;
+
+	if (dev->msi_enabled) {
+		mode = AAC_INT_MODE_MSI;
+		if (vector_no == 0) {
+			bellbits = src_readl(dev, MUnit.ODR_MSI);
+			if (bellbits & 0x40000)
+				mode |= AAC_INT_MODE_AIF;
+			if (bellbits & 0x1000)
+				mode |= AAC_INT_MODE_SYNC;
 		}
 	} else {
-		bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
-		if (bellbits_shifted & DoorBellAifPending) {
+		mode = AAC_INT_MODE_INTX;
+		bellbits = src_readl(dev, MUnit.ODR_R);
+		if (bellbits & PmDoorBellResponseSent) {
+			bellbits = PmDoorBellResponseSent;
+			src_writel(dev, MUnit.ODR_C, bellbits);
+			src_readl(dev, MUnit.ODR_C);
+		} else {
+			bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
 			src_writel(dev, MUnit.ODR_C, bellbits);
 			src_readl(dev, MUnit.ODR_C);
-			our_interrupt = 1;
-			/* handle AIF */
-			aac_intr_normal(dev, 0, 2, 0, NULL);
-		} else if (bellbits_shifted & OUTBOUNDDOORBELL_0) {
-			unsigned long sflags;
-			struct list_head *entry;
-			int send_it = 0;
-			extern int aac_sync_mode;
 
+			if (bellbits_shifted & DoorBellAifPending)
+				mode |= AAC_INT_MODE_AIF;
+			else if (bellbits_shifted & OUTBOUNDDOORBELL_0)
+				mode |= AAC_INT_MODE_SYNC;
+		}
+	}
+
+	if (mode & AAC_INT_MODE_SYNC) {
+		unsigned long sflags;
+		struct list_head *entry;
+		int send_it = 0;
+		extern int aac_sync_mode;
+
+		if (!aac_sync_mode && !dev->msi_enabled) {
 			src_writel(dev, MUnit.ODR_C, bellbits);
 			src_readl(dev, MUnit.ODR_C);
+		}
 
-			if (!aac_sync_mode) {
-				src_writel(dev, MUnit.ODR_C, bellbits);
-				src_readl(dev, MUnit.ODR_C);
-				our_interrupt = 1;
+		if (dev->sync_fib) {
+			if (dev->sync_fib->callback)
+				dev->sync_fib->callback(dev->sync_fib->callback_data,
+					dev->sync_fib);
+			spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
+			if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
+				dev->management_fib_count--;
+				up(&dev->sync_fib->event_wait);
 			}
-
-			if (dev->sync_fib) {
-				our_interrupt = 1;
-				if (dev->sync_fib->callback)
-					dev->sync_fib->callback(dev->sync_fib->callback_data,
-						dev->sync_fib);
-				spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
-				if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
-					dev->management_fib_count--;
-					up(&dev->sync_fib->event_wait);
-				}
-				spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags);
-				spin_lock_irqsave(&dev->sync_lock, sflags);
-				if (!list_empty(&dev->sync_fib_list)) {
-					entry = dev->sync_fib_list.next;
-					dev->sync_fib = list_entry(entry, struct fib, fiblink);
-					list_del(entry);
-					send_it = 1;
-				} else {
-					dev->sync_fib = NULL;
-				}
-				spin_unlock_irqrestore(&dev->sync_lock, sflags);
-				if (send_it) {
-					aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
-						(u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0,
-						NULL, NULL, NULL, NULL, NULL);
-				}
+			spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags);
+			spin_lock_irqsave(&dev->sync_lock, sflags);
+			if (!list_empty(&dev->sync_fib_list)) {
+				entry = dev->sync_fib_list.next;
+				dev->sync_fib = list_entry(entry, struct fib, fiblink);
+				list_del(entry);
+				send_it = 1;
+			} else {
+				dev->sync_fib = NULL;
+			}
+			spin_unlock_irqrestore(&dev->sync_lock, sflags);
+			if (send_it) {
+				aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
+					(u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0,
+					NULL, NULL, NULL, NULL, NULL);
 			}
 		}
+		if (!dev->msi_enabled)
+			mode = 0;
+
 	}
 
-	if (our_interrupt) {
-		return IRQ_HANDLED;
+	if (mode & AAC_INT_MODE_AIF) {
+		/* handle AIF */
+		aac_intr_normal(dev, 0, 2, 0, NULL);
+		if (dev->msi_enabled)
+			aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT);
+		mode = 0;
 	}
-	return IRQ_NONE;
+
+	if (mode) {
+		index = dev->host_rrq_idx[vector_no];
+
+		for (;;) {
+			isFastResponse = 0;
+			/* remove toggle bit (31) */
+			handle = (dev->host_rrq[index] & 0x7fffffff);
+			/* check fast response bit (30) */
+			if (handle & 0x40000000)
+				isFastResponse = 1;
+			handle &= 0x0000ffff;
+			if (handle == 0)
+				break;
+			if (dev->msi_enabled && dev->max_msix > 1)
+				atomic_dec(&dev->rrq_outstanding[vector_no]);
+			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
+			dev->host_rrq[index++] = 0;
+			if (index == (vector_no + 1) * dev->vector_cap)
+				index = vector_no * dev->vector_cap;
+			dev->host_rrq_idx[vector_no] = index;
+		}
+		mode = 0;
+	}
+
+	return IRQ_HANDLED;
 }
 
 /**
@@ -155,7 +181,7 @@ static void aac_src_disable_interrupt(struct aac_dev *dev)
 
 static void aac_src_enable_interrupt_message(struct aac_dev *dev)
 {
-	src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8);
+	aac_src_access_devreg(dev, AAC_ENABLE_INTERRUPT);
 }
 
 /**
@@ -191,7 +217,8 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 	/*
 	 *	Clear the synch command doorbell to start on a clean slate.
 	 */
-	src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+	if (!dev->msi_enabled)
+		src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 
 	/*
 	 *	Disable doorbell interrupts
@@ -221,11 +248,14 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 			/*
 			 *	Mon960 will set doorbell0 bit when it has completed the command.
 			 */
-			if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) {
+			if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) {
 				/*
 				 *	Clear the doorbell.
 				 */
-				src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+				if (dev->msi_enabled)
+					aac_src_access_devreg(dev, AAC_CLEAR_SYNC_BIT);
+				else
+					src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 				ok = 1;
 				break;
 			}
@@ -254,11 +284,13 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 			*r3 = readl(&dev->IndexRegs->Mailbox[3]);
 		if (r4)
 			*r4 = readl(&dev->IndexRegs->Mailbox[4]);
-
+		if (command == GET_COMM_PREFERRED_SETTINGS)
+			dev->max_msix = readl(&dev->IndexRegs->Mailbox[5]) & 0xFFFF;
 		/*
 		 *	Clear the synch command doorbell.
 		 */
-		src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+		if (!dev->msi_enabled)
+			src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 	}
 
 	/*
@@ -335,9 +367,14 @@ static void aac_src_notify_adapter(struct aac_dev *dev, u32 event)
 static void aac_src_start_adapter(struct aac_dev *dev)
 {
 	struct aac_init *init;
+	int i;
 
 	 /* reset host_rrq_idx first */
-	dev->host_rrq_idx = 0;
+	for (i = 0; i < dev->max_msix; i++) {
+		dev->host_rrq_idx[i] = i * dev->vector_cap;
+		atomic_set(&dev->rrq_outstanding[i], 0);
+	}
+	dev->fibs_pushed_no = 0;
 
 	init = dev->init;
 	init->HostElapsedSeconds = cpu_to_le32(get_seconds());
@@ -400,6 +437,33 @@ static int aac_src_deliver_message(struct fib *fib)
 	q->numpending++;
 	spin_unlock_irqrestore(q->lock, qflags);
 
+	if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest &&
+	    dev->max_msix > 1) {
+		u_int16_t vector_no, first_choice = 0xffff;
+
+		vector_no = dev->fibs_pushed_no % dev->max_msix;
+		do {
+			vector_no += 1;
+			if (vector_no == dev->max_msix)
+				vector_no = 1;
+			if (atomic_read(&dev->rrq_outstanding[vector_no]) <
+			    dev->vector_cap)
+				break;
+			if (0xffff == first_choice)
+				first_choice = vector_no;
+			else if (vector_no == first_choice)
+				break;
+		} while (1);
+		if (vector_no == first_choice)
+			vector_no = 0;
+		atomic_inc(&dev->rrq_outstanding[vector_no]);
+		if (dev->fibs_pushed_no == 0xffffffff)
+			dev->fibs_pushed_no = 0;
+		else
+			dev->fibs_pushed_no++;
+		fib->hw_fib_va->header.Handle += (vector_no << 16);
+	}
+
 	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
 		/* Calculate the amount to the fibsize bits */
 		fibsize = (hdr_size + 127) / 128 - 1;
@@ -502,10 +566,19 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 			0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
 			if (bled || (var != 0x00000001))
 				return -EINVAL;
+
+		if ((dev->pdev->device == PMC_DEVICE_S7 ||
+		    dev->pdev->device == PMC_DEVICE_S8 ||
+		    dev->pdev->device == PMC_DEVICE_S9) && dev->msi_enabled) {
+			aac_src_access_devreg(dev, AAC_ENABLE_INTX);
+			dev->msi_enabled = 0;
+			msleep(5000); /* Delay 5 seconds */
+		}
+
 		if (dev->supplement_adapter_info.SupportedOptions2 &
 			AAC_OPTION_DOORBELL_RESET) {
 			src_writel(dev, MUnit.IDR, reset_mask);
-			msleep(5000); /* Delay 5 seconds */
+			ssleep(45);
 		}
 	}
 
@@ -646,8 +719,11 @@ int aac_src_init(struct aac_dev *dev)
 
 	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 
+	dev->aac_msix[0].vector_no = 0;
+	dev->aac_msix[0].dev = dev;
+
 	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
-			IRQF_SHARED, "aacraid", dev) < 0) {
+			IRQF_SHARED, "aacraid", &(dev->aac_msix[0]))  < 0) {
 
 		if (dev->msi)
 			pci_disable_msi(dev->pdev);
@@ -688,6 +764,7 @@ int aac_srcv_init(struct aac_dev *dev)
 	unsigned long status;
 	int restart = 0;
 	int instance = dev->id;
+	int i, j;
 	const char *name = dev->name;
 
 	dev->a_ops.adapter_ioremap = aac_srcv_ioremap;
@@ -802,14 +879,36 @@ int aac_srcv_init(struct aac_dev *dev)
 		goto error_iounmap;
 	if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE2)
 		goto error_iounmap;
-	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
-	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
-		IRQF_SHARED, "aacraid", dev) < 0) {
-		if (dev->msi)
-			pci_disable_msi(dev->pdev);
-		printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
-			name, instance);
-		goto error_iounmap;
+	if (dev->msi_enabled)
+		aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
+	if (!dev->sync_mode && dev->msi_enabled && dev->max_msix > 1) {
+		for (i = 0; i < dev->max_msix; i++) {
+			dev->aac_msix[i].vector_no = i;
+			dev->aac_msix[i].dev = dev;
+
+			if (request_irq(dev->msixentry[i].vector, dev->a_ops.adapter_intr,
+					0, "aacraid", &(dev->aac_msix[i]))) {
+				printk(KERN_ERR "%s%d: Failed to register IRQ for vector %d.\n",
+						name, instance, i);
+				for (j = 0 ; j < i ; j++)
+					free_irq(dev->msixentry[j].vector,
+						 &(dev->aac_msix[j]));
+				pci_disable_msix(dev->pdev);
+				goto error_iounmap;
+			}
+		}
+	} else {
+		dev->aac_msix[0].vector_no = 0;
+		dev->aac_msix[0].dev = dev;
+
+		if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
+				IRQF_SHARED, "aacraid", &(dev->aac_msix[0])) < 0) {
+			if (dev->msi)
+				pci_disable_msi(dev->pdev);
+			printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
+					name, instance);
+			goto error_iounmap;
+		}
 	}
 	dev->dbg_base = dev->base_start;
 	dev->dbg_base_mapped = dev->base;
@@ -831,3 +930,87 @@ error_iounmap:
 	return -1;
 }
 
+void aac_src_access_devreg(struct aac_dev *dev, int mode)
+{
+	u_int32_t val;
+
+	switch (mode) {
+	case AAC_ENABLE_INTERRUPT:
+		src_writel(dev, MUnit.OIMR, dev->OIMR = (dev->msi_enabled ? AAC_INT_ENABLE_TYPE1_MSIX :
+									    AAC_INT_ENABLE_TYPE1_INTX));
+		break;
+
+	case AAC_DISABLE_INTERRUPT:
+		src_writel(dev, MUnit.OIMR, dev->OIMR = AAC_INT_DISABLE_ALL);
+		break;
+
+	case AAC_ENABLE_MSIX:
+		/* set bit 6 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x40;
+		src_writel(dev,  MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		/* unmask int. */
+		val = PMC_ALL_INTERRUPT_BITS;
+		src_writel(dev, MUnit.IOAR, val);
+		val = src_readl(dev, MUnit.OIMR);
+		src_writel(dev, MUnit.OIMR,
+				val & (~(PMC_GLOBAL_INT_BIT2 | PMC_GLOBAL_INT_BIT0)));
+		break;
+
+	case AAC_DISABLE_MSIX:
+		/* reset bit 6 */
+		val = src_readl(dev, MUnit.IDR);
+		val &= ~0x40;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_CLEAR_AIF_BIT:
+		/* set bit 5 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x20;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_CLEAR_SYNC_BIT:
+		/* set bit 4 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x10;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_ENABLE_INTX:
+		/* set bit 7 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x80;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		/* unmask int. */
+		val = PMC_ALL_INTERRUPT_BITS;
+		src_writel(dev, MUnit.IOAR, val);
+		src_readl(dev, MUnit.IOAR);
+		val = src_readl(dev, MUnit.OIMR);
+		src_writel(dev, MUnit.OIMR,
+				val & (~(PMC_GLOBAL_INT_BIT2)));
+		break;
+
+	default:
+		break;
+	}
+}
+
+static int aac_src_get_sync_status(struct aac_dev *dev)
+{
+
+	int val;
+
+	if (dev->msi_enabled)
+		val = src_readl(dev, MUnit.ODR_MSI) & 0x1000 ? 1 : 0;
+	else
+		val = src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT;
+
+	return val;
+}
-- 
1.7.7.3

RE: [PATCH 4/7] aacraid: MSI-x support

[Murthy Bhat]

Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>

-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 04, 2015 2:09 PM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 4/7] aacraid: MSI-x support

Add MSI-x interrupt mode support.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aachba.c   |    6 +-
 drivers/scsi/aacraid/aacraid.h  |   79 ++++++++-
 drivers/scsi/aacraid/comminit.c |   86 +++++++++-
 drivers/scsi/aacraid/commsup.c  |   19 ++-
 drivers/scsi/aacraid/dpcsup.c   |    9 +-
 drivers/scsi/aacraid/linit.c    |   18 ++-
 drivers/scsi/aacraid/src.c      |  365 +++++++++++++++++++++++++++++----------
 7 files changed, 473 insertions(+), 109 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 0819644..eb524e6 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -473,7 +473,7 @@ static void get_container_name_callback(void *context, struct fib * fibptr)
 	if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 	 && (get_name_reply->data[0] != '\0')) {
 		char *sp = get_name_reply->data;
-		sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
+		sp[sizeof(((struct aac_get_name_resp *)NULL)->data)] = '\0';
 		while (*sp == ' ')
 			++sp;
 		if (*sp) {
@@ -613,7 +613,9 @@ static void _aac_probe_container1(void * context, struct fib * fibptr)
 	int status;
 
 	dresp = (struct aac_mount *) fib_data(fibptr);
-	dresp->mnt[0].capacityhigh = 0;
+	if (!(fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+	    AAC_OPTION_VARIABLE_BLOCK_SIZE))
+		dresp->mnt[0].capacityhigh = 0;
 	if ((le32_to_cpu(dresp->status) != ST_OK) ||
 	    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
 		_aac_probe_container2(context, fibptr);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 93579f3..c162a65 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -6,11 +6,61 @@
 #define nblank(x) _nblank(x)[0]
 
 #include <linux/interrupt.h>
+#include <linux/pci.h>
 
 /*------------------------------------------------------------------------------
  *              D E F I N E S
  *----------------------------------------------------------------------------*/
 
+#define AAC_MAX_MSIX		32	/* vectors */
+#define AAC_PCI_MSI_ENABLE	0x8000
+
+enum {
+	AAC_ENABLE_INTERRUPT	= 0x0,
+	AAC_DISABLE_INTERRUPT,
+	AAC_ENABLE_MSIX,
+	AAC_DISABLE_MSIX,
+	AAC_CLEAR_AIF_BIT,
+	AAC_CLEAR_SYNC_BIT,
+	AAC_ENABLE_INTX
+};
+
+#define AAC_INT_MODE_INTX		(1<<0)
+#define AAC_INT_MODE_MSI		(1<<1)
+#define AAC_INT_MODE_AIF		(1<<2)
+#define AAC_INT_MODE_SYNC		(1<<3)
+
+#define AAC_INT_ENABLE_TYPE1_INTX	0xfffffffb
+#define AAC_INT_ENABLE_TYPE1_MSIX	0xfffffffa
+#define AAC_INT_DISABLE_ALL		0xffffffff
+
+/* Bit definitions in IOA->Host Interrupt Register */
+#define PMC_TRANSITION_TO_OPERATIONAL	(0x80000000 >> 0)
+#define PMC_IOARCB_TRANSFER_FAILED	(0x80000000 >> 3)
+#define PMC_IOA_UNIT_CHECK		(0x80000000 >> 4)
+#define PMC_NO_HOST_RRQ_FOR_CMD_RESPONSE (0x80000000 >> 5)
+#define PMC_CRITICAL_IOA_OP_IN_PROGRESS	(0x80000000 >> 6)
+#define PMC_IOARRIN_LOST		(0x80000000 >> 27)
+#define PMC_SYSTEM_BUS_MMIO_ERROR	(0x80000000 >> 28)
+#define PMC_IOA_PROCESSOR_IN_ERROR_STATE (0x80000000 >> 29)
+#define PMC_HOST_RRQ_VALID		(0x80000000 >> 30)
+#define PMC_OPERATIONAL_STATUS		(0x80000000 >> 0)
+#define PMC_ALLOW_MSIX_VECTOR0		(0x80000000 >> 31)
+
+#define PMC_IOA_ERROR_INTERRUPTS	(PMC_IOARCB_TRANSFER_FAILED | \
+					 PMC_IOA_UNIT_CHECK | \
+					 PMC_NO_HOST_RRQ_FOR_CMD_RESPONSE | \
+					 PMC_IOARRIN_LOST | \
+					 PMC_SYSTEM_BUS_MMIO_ERROR | \
+					 PMC_IOA_PROCESSOR_IN_ERROR_STATE)
+
+#define PMC_ALL_INTERRUPT_BITS		(PMC_IOA_ERROR_INTERRUPTS | \
+					 PMC_HOST_RRQ_VALID | \
+					 PMC_TRANSITION_TO_OPERATIONAL | \
+					 PMC_ALLOW_MSIX_VECTOR0)
+#define	PMC_GLOBAL_INT_BIT2		0x00000004
+#define	PMC_GLOBAL_INT_BIT0		0x00000001
+
 #ifndef AAC_DRIVER_BUILD
 # define AAC_DRIVER_BUILD 30300
 # define AAC_DRIVER_BRANCH "-ms"
@@ -36,6 +86,7 @@
 #define CONTAINER_TO_ID(cont)		(cont)
 #define CONTAINER_TO_LUN(cont)		(0)
 
+#define PMC_DEVICE_S6	0x28b
 #define PMC_DEVICE_S7	0x28c
 #define PMC_DEVICE_S8	0x28d
 #define PMC_DEVICE_S9	0x28f
@@ -434,7 +485,7 @@ enum fib_xfer_state {
 struct aac_init
 {
 	__le32	InitStructRevision;
-	__le32	MiniPortRevision;
+	__le32	NoOfMSIXVectors;
 	__le32	fsrev;
 	__le32	CommHeaderAddress;
 	__le32	FastIoCommAreaAddress;
@@ -755,7 +806,8 @@ struct rkt_registers {
 
 struct src_mu_registers {
 				/*	PCI*| Name */
-	__le32	reserved0[8];	/*	00h | Reserved */
+	__le32	reserved0[6];	/*	00h | Reserved */
+	__le32	IOAR[2];	/*	18h | IOA->host interrupt register */
 	__le32	IDR;		/*	20h | Inbound Doorbell Register */
 	__le32	IISR;		/*	24h | Inbound Int. Status Register */
 	__le32	reserved1[3];	/*	28h | Reserved */
@@ -767,17 +819,18 @@ struct src_mu_registers {
 	__le32	OMR;		/*	bch | Outbound Message Register */
 	__le32	IQ_L;		/*  c0h | Inbound Queue (Low address) */
 	__le32	IQ_H;		/*  c4h | Inbound Queue (High address) */
+	__le32	ODR_MSI;	/*  c8h | MSI register for sync./AIF */
 };
 
 struct src_registers {
-	struct src_mu_registers MUnit;	/* 00h - c7h */
+	struct src_mu_registers MUnit;	/* 00h - cbh */
 	union {
 		struct {
-			__le32 reserved1[130790];	/* c8h - 7fc5fh */
+			__le32 reserved1[130789];	/* cch - 7fc5fh */
 			struct src_inbound IndexRegs;	/* 7fc60h */
 		} tupelo;
 		struct {
-			__le32 reserved1[974];		/* c8h - fffh */
+			__le32 reserved1[973];		/* cch - fffh */
 			struct src_inbound IndexRegs;	/* 1000h */
 		} denali;
 	} u;
@@ -1028,6 +1081,11 @@ struct aac_bus_info_response {
 #define AAC_OPT_NEW_COMM_TYPE3		cpu_to_le32(1<<30)
 #define AAC_OPT_NEW_COMM_TYPE4		cpu_to_le32(1<<31)
 
+/* MSIX context */
+struct aac_msix_ctx {
+	int		vector_no;
+	struct aac_dev	*dev;
+};
 
 struct aac_dev
 {
@@ -1083,8 +1141,9 @@ struct aac_dev
 						 * if AAC_COMM_MESSAGE_TYPE1 */
 
 	dma_addr_t		host_rrq_pa;	/* phys. address */
-	u32			host_rrq_idx;	/* index into rrq buffer */
-
+	u32			host_rrq_idx[AAC_MAX_MSIX];	/* index into rrq buffer */
+	atomic_t		rrq_outstanding[AAC_MAX_MSIX];
+	u32			fibs_pushed_no;
 	struct pci_dev		*pdev;		/* Our PCI interface */
 	void *			printfbuf;	/* pointer to buffer used for printf's from the adapter */
 	void *			comm_addr;	/* Base address of Comm area */
@@ -1153,6 +1212,11 @@ struct aac_dev
 	int			sync_mode;
 	struct fib		*sync_fib;
 	struct list_head	sync_fib_list;
+	u32			max_msix;	/* max. MSI-X vectors */
+	u32			vector_cap;	/* MSI-X vector capab.*/
+	int			msi_enabled;	/* MSI/MSI-X enabled */
+	struct msix_entry	msixentry[AAC_MAX_MSIX];
+	struct aac_msix_ctx	aac_msix[AAC_MAX_MSIX]; /* context */
 };
 
 #define aac_adapter_interrupt(dev) \
@@ -2035,6 +2099,7 @@ void aac_consumer_free(struct aac_dev * dev, struct aac_queue * q, u32 qnum);
 int aac_fib_complete(struct fib * context);
 #define fib_data(fibctx) ((void *)(fibctx)->hw_fib_va->data)
 struct aac_dev *aac_init_adapter(struct aac_dev *dev);
+void aac_src_access_devreg(struct aac_dev *dev, int mode);
 int aac_get_config_status(struct aac_dev *dev, int commit_flag);
 int aac_get_containers(struct aac_dev *dev);
 int aac_scsi_cmd(struct scsi_cmnd *cmd);
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 177b094..29c35c8 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -43,6 +43,8 @@
 
 #include "aacraid.h"
 
+static void aac_define_int_mode(struct aac_dev *dev);
+
 struct aac_common aac_config = {
 	.irq_mod = 1
 };
@@ -91,7 +93,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 	init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION);
 	if (dev->max_fib_size != sizeof(struct hw_fib))
 		init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4);
-	init->MiniPortRevision = cpu_to_le32(Sa_MINIPORT_REVISION);
+	init->NoOfMSIXVectors = cpu_to_le32(Sa_MINIPORT_REVISION);
 	init->fsrev = cpu_to_le32(dev->fsrev);
 
 	/*
@@ -140,7 +142,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 			INITFLAGS_NEW_COMM_TYPE2_SUPPORTED | INITFLAGS_FAST_JBOD_SUPPORTED);
 		init->HostRRQ_AddrHigh = cpu_to_le32((u32)((u64)dev->host_rrq_pa >> 32));
 		init->HostRRQ_AddrLow = cpu_to_le32((u32)(dev->host_rrq_pa & 0xffffffff));
-		init->MiniPortRevision = cpu_to_le32(0L);		/* number of MSI-X */
+		init->NoOfMSIXVectors = cpu_to_le32(dev->max_msix);	/* number of MSI-X */
 		dprintk((KERN_WARNING"aacraid: New Comm Interface type2 enabled\n"));
 	}
 
@@ -228,6 +230,11 @@ int aac_send_shutdown(struct aac_dev * dev)
 	/* FIB should be freed only after getting the response from the F/W */
 	if (status != -ERESTARTSYS)
 		aac_fib_free(fibctx);
+	if ((dev->pdev->device == PMC_DEVICE_S7 ||
+	     dev->pdev->device == PMC_DEVICE_S8 ||
+	     dev->pdev->device == PMC_DEVICE_S9) &&
+	     dev->msi_enabled)
+		aac_src_access_devreg(dev, AAC_ENABLE_INTX);
 	return status;
 }
 
@@ -388,6 +395,8 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 			}
 		}
 	}
+	dev->max_msix = 0;
+	dev->msi_enabled = 0;
 	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
 	  0, 0, 0, 0, 0, 0,
 	  status+0, status+1, status+2, status+3, status+4))
@@ -461,6 +470,11 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	if (host->can_queue > AAC_NUM_IO_FIB)
 		host->can_queue = AAC_NUM_IO_FIB;
 
+	if (dev->pdev->device == PMC_DEVICE_S6 ||
+	    dev->pdev->device == PMC_DEVICE_S7 ||
+	    dev->pdev->device == PMC_DEVICE_S8 ||
+	    dev->pdev->device == PMC_DEVICE_S9)
+		aac_define_int_mode(dev);
 	/*
 	 *	Ok now init the communication subsystem
 	 */
@@ -489,4 +503,70 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	return dev;
 }
 
-    
+static void aac_define_int_mode(struct aac_dev *dev)
+{
+
+	int i, msi_count;
+
+	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
+	if (dev->max_msix == 0 ||
+	    dev->pdev->device == PMC_DEVICE_S6 ||
+	    dev->sync_mode) {
+		dev->max_msix = 1;
+		dev->vector_cap = dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB;
+		return;
+	}
+
+	msi_count = min(dev->max_msix,
+		(unsigned int)num_online_cpus());
+
+	dev->max_msix = msi_count;
+
+	if (msi_count > AAC_MAX_MSIX)
+		msi_count = AAC_MAX_MSIX;
+
+	for (i = 0; i < msi_count; i++)
+		dev->msixentry[i].entry = i;
+
+	if (msi_count > 1 && pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) {
+
+		i = pci_enable_msix(dev->pdev, dev->msixentry, msi_count);
+		 /* Check how many MSIX vectors are allocated */
+		if (i >= 0) {
+			dev->msi_enabled = 1;
+			if (i) {
+				msi_count = i;
+				if (pci_enable_msix(dev->pdev, dev->msixentry, msi_count)) {
+					dev->msi_enabled = 0;
+					printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n",
+							dev->name, dev->id, i);
+				}
+			}
+		} else {
+			dev->msi_enabled = 0;
+			printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n",
+					dev->name, dev->id, i);
+		}
+	}
+
+	if (!dev->msi_enabled) {
+		msi_count = 1;
+		i = !pci_enable_msi(dev->pdev);
+
+		if (i) {
+			dev->msi_enabled = 1;
+			dev->msi = 1;
+		} else {
+			printk(KERN_ERR "%s%d: MSI not supported!! Will try INTx 0x%x.\n",
+					dev->name, dev->id, i);
+		}
+	}
+
+	if (!dev->msi_enabled)
+		dev->max_msix = msi_count = 1;
+	else {
+		if (dev->max_msix > msi_count)
+			dev->max_msix = msi_count;
+	}
+	dev->vector_cap = (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) / msi_count;
+}
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 090ba68..83c5d3f 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -868,7 +868,7 @@ void aac_printf(struct aac_dev *dev, u32 val)
  *	dispatches it to the appropriate routine for handling.
  */
 
-#define AIF_SNIFF_TIMEOUT	(30*HZ)
+#define AIF_SNIFF_TIMEOUT	(500*HZ)
 static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 {
 	struct hw_fib * hw_fib = fibptr->hw_fib_va;
@@ -1251,7 +1251,7 @@ retry_next:
 static int _aac_reset_adapter(struct aac_dev *aac, int forced)
 {
 	int index, quirks;
-	int retval;
+	int retval, i;
 	struct Scsi_Host *host;
 	struct scsi_device *dev;
 	struct scsi_cmnd *command;
@@ -1319,7 +1319,20 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced)
 	aac->comm_phys = 0;
 	kfree(aac->queues);
 	aac->queues = NULL;
-	free_irq(aac->pdev->irq, aac);
+	if (aac->pdev->device == PMC_DEVICE_S6 ||
+	    aac->pdev->device == PMC_DEVICE_S7 ||
+	    aac->pdev->device == PMC_DEVICE_S8 ||
+	    aac->pdev->device == PMC_DEVICE_S9) {
+		if (aac->max_msix > 1) {
+			for (i = 0; i < aac->max_msix; i++)
+				free_irq(aac->msixentry[i].vector, &(aac->aac_msix[i]));
+			pci_disable_msix(aac->pdev);
+		} else {
+			free_irq(aac->pdev->irq, &(aac->aac_msix[0]));
+		}
+	} else {
+		free_irq(aac->pdev->irq, aac);
+	}
 	if (aac->msi)
 		pci_disable_msi(aac->pdev);
 	kfree(aac->fsa_dev);
diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c
index d81b281..2e39466 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -389,8 +389,13 @@ unsigned int aac_intr_normal(struct aac_dev *dev, u32 index,
 			 *	NOTE:  we cannot touch the fib after this
 			 *	    call, because it may have been deallocated.
 			 */
-			fib->flags &= FIB_CONTEXT_FLAG_FASTRESP;
-			fib->callback(fib->callback_data, fib);
+			if (likely(fib->callback && fib->callback_data)) {
+				fib->flags &= FIB_CONTEXT_FLAG_FASTRESP;
+				fib->callback(fib->callback_data, fib);
+			} else {
+				aac_fib_complete(fib);
+				aac_fib_free(fib);
+			}
 		} else {
 			unsigned long flagv;
 	  		dprintk((KERN_INFO "event_wait up\n"));
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index fdcdf9f..7813a9b 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1082,6 +1082,8 @@ static struct scsi_host_template aac_driver_template = {
 
 static void __aac_shutdown(struct aac_dev * aac)
 {
+	int i;
+
 	if (aac->aif_thread) {
 		int i;
 		/* Clear out events first */
@@ -1095,9 +1097,23 @@ static void __aac_shutdown(struct aac_dev * aac)
 	}
 	aac_send_shutdown(aac);
 	aac_adapter_disable_int(aac);
-	free_irq(aac->pdev->irq, aac);
+	if (aac->pdev->device == PMC_DEVICE_S6 ||
+	    aac->pdev->device == PMC_DEVICE_S7 ||
+	    aac->pdev->device == PMC_DEVICE_S8 ||
+	    aac->pdev->device == PMC_DEVICE_S9) {
+		if (aac->max_msix > 1) {
+			for (i = 0; i < aac->max_msix; i++)
+				free_irq(aac->msixentry[i].vector, &(aac->aac_msix[i]));
+		} else {
+			free_irq(aac->pdev->irq, &(aac->aac_msix[0]));
+		}
+	} else {
+		free_irq(aac->pdev->irq, aac);
+	}
 	if (aac->msi)
 		pci_disable_msi(aac->pdev);
+	else if (aac->max_msix > 1)
+		pci_disable_msix(aac->pdev);
 }
 
 static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index 9c65aed..c010248 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -44,98 +44,124 @@
 
 #include "aacraid.h"
 
-static irqreturn_t aac_src_intr_message(int irq, void *dev_id)
+static int aac_src_get_sync_status(struct aac_dev *dev);
+
+irqreturn_t aac_src_intr_message(int irq, void *dev_id)
 {
-	struct aac_dev *dev = dev_id;
+	struct aac_msix_ctx *ctx;
+	struct aac_dev *dev;
 	unsigned long bellbits, bellbits_shifted;
-	int our_interrupt = 0;
-	int isFastResponse;
+	int vector_no;
+	int isFastResponse, mode;
 	u32 index, handle;
 
-	bellbits = src_readl(dev, MUnit.ODR_R);
-	if (bellbits & PmDoorBellResponseSent) {
-		bellbits = PmDoorBellResponseSent;
-		/* handle async. status */
-		src_writel(dev, MUnit.ODR_C, bellbits);
-		src_readl(dev, MUnit.ODR_C);
-		our_interrupt = 1;
-		index = dev->host_rrq_idx;
-		for (;;) {
-			isFastResponse = 0;
-			/* remove toggle bit (31) */
-			handle = le32_to_cpu(dev->host_rrq[index]) & 0x7fffffff;
-			/* check fast response bit (30) */
-			if (handle & 0x40000000)
-				isFastResponse = 1;
-			handle &= 0x0000ffff;
-			if (handle == 0)
-				break;
-
-			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
-
-			dev->host_rrq[index++] = 0;
-			if (index == dev->scsi_host_ptr->can_queue +
-						AAC_NUM_MGT_FIB)
-				index = 0;
-			dev->host_rrq_idx = index;
+	ctx = (struct aac_msix_ctx *)dev_id;
+	dev = ctx->dev;
+	vector_no = ctx->vector_no;
+
+	if (dev->msi_enabled) {
+		mode = AAC_INT_MODE_MSI;
+		if (vector_no == 0) {
+			bellbits = src_readl(dev, MUnit.ODR_MSI);
+			if (bellbits & 0x40000)
+				mode |= AAC_INT_MODE_AIF;
+			if (bellbits & 0x1000)
+				mode |= AAC_INT_MODE_SYNC;
 		}
 	} else {
-		bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
-		if (bellbits_shifted & DoorBellAifPending) {
+		mode = AAC_INT_MODE_INTX;
+		bellbits = src_readl(dev, MUnit.ODR_R);
+		if (bellbits & PmDoorBellResponseSent) {
+			bellbits = PmDoorBellResponseSent;
+			src_writel(dev, MUnit.ODR_C, bellbits);
+			src_readl(dev, MUnit.ODR_C);
+		} else {
+			bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
 			src_writel(dev, MUnit.ODR_C, bellbits);
 			src_readl(dev, MUnit.ODR_C);
-			our_interrupt = 1;
-			/* handle AIF */
-			aac_intr_normal(dev, 0, 2, 0, NULL);
-		} else if (bellbits_shifted & OUTBOUNDDOORBELL_0) {
-			unsigned long sflags;
-			struct list_head *entry;
-			int send_it = 0;
-			extern int aac_sync_mode;
 
+			if (bellbits_shifted & DoorBellAifPending)
+				mode |= AAC_INT_MODE_AIF;
+			else if (bellbits_shifted & OUTBOUNDDOORBELL_0)
+				mode |= AAC_INT_MODE_SYNC;
+		}
+	}
+
+	if (mode & AAC_INT_MODE_SYNC) {
+		unsigned long sflags;
+		struct list_head *entry;
+		int send_it = 0;
+		extern int aac_sync_mode;
+
+		if (!aac_sync_mode && !dev->msi_enabled) {
 			src_writel(dev, MUnit.ODR_C, bellbits);
 			src_readl(dev, MUnit.ODR_C);
+		}
 
-			if (!aac_sync_mode) {
-				src_writel(dev, MUnit.ODR_C, bellbits);
-				src_readl(dev, MUnit.ODR_C);
-				our_interrupt = 1;
+		if (dev->sync_fib) {
+			if (dev->sync_fib->callback)
+				dev->sync_fib->callback(dev->sync_fib->callback_data,
+					dev->sync_fib);
+			spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
+			if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
+				dev->management_fib_count--;
+				up(&dev->sync_fib->event_wait);
 			}
-
-			if (dev->sync_fib) {
-				our_interrupt = 1;
-				if (dev->sync_fib->callback)
-					dev->sync_fib->callback(dev->sync_fib->callback_data,
-						dev->sync_fib);
-				spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
-				if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
-					dev->management_fib_count--;
-					up(&dev->sync_fib->event_wait);
-				}
-				spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags);
-				spin_lock_irqsave(&dev->sync_lock, sflags);
-				if (!list_empty(&dev->sync_fib_list)) {
-					entry = dev->sync_fib_list.next;
-					dev->sync_fib = list_entry(entry, struct fib, fiblink);
-					list_del(entry);
-					send_it = 1;
-				} else {
-					dev->sync_fib = NULL;
-				}
-				spin_unlock_irqrestore(&dev->sync_lock, sflags);
-				if (send_it) {
-					aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
-						(u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0,
-						NULL, NULL, NULL, NULL, NULL);
-				}
+			spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags);
+			spin_lock_irqsave(&dev->sync_lock, sflags);
+			if (!list_empty(&dev->sync_fib_list)) {
+				entry = dev->sync_fib_list.next;
+				dev->sync_fib = list_entry(entry, struct fib, fiblink);
+				list_del(entry);
+				send_it = 1;
+			} else {
+				dev->sync_fib = NULL;
+			}
+			spin_unlock_irqrestore(&dev->sync_lock, sflags);
+			if (send_it) {
+				aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
+					(u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0,
+					NULL, NULL, NULL, NULL, NULL);
 			}
 		}
+		if (!dev->msi_enabled)
+			mode = 0;
+
 	}
 
-	if (our_interrupt) {
-		return IRQ_HANDLED;
+	if (mode & AAC_INT_MODE_AIF) {
+		/* handle AIF */
+		aac_intr_normal(dev, 0, 2, 0, NULL);
+		if (dev->msi_enabled)
+			aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT);
+		mode = 0;
 	}
-	return IRQ_NONE;
+
+	if (mode) {
+		index = dev->host_rrq_idx[vector_no];
+
+		for (;;) {
+			isFastResponse = 0;
+			/* remove toggle bit (31) */
+			handle = (dev->host_rrq[index] & 0x7fffffff);
+			/* check fast response bit (30) */
+			if (handle & 0x40000000)
+				isFastResponse = 1;
+			handle &= 0x0000ffff;
+			if (handle == 0)
+				break;
+			if (dev->msi_enabled && dev->max_msix > 1)
+				atomic_dec(&dev->rrq_outstanding[vector_no]);
+			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
+			dev->host_rrq[index++] = 0;
+			if (index == (vector_no + 1) * dev->vector_cap)
+				index = vector_no * dev->vector_cap;
+			dev->host_rrq_idx[vector_no] = index;
+		}
+		mode = 0;
+	}
+
+	return IRQ_HANDLED;
 }
 
 /**
@@ -155,7 +181,7 @@ static void aac_src_disable_interrupt(struct aac_dev *dev)
 
 static void aac_src_enable_interrupt_message(struct aac_dev *dev)
 {
-	src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8);
+	aac_src_access_devreg(dev, AAC_ENABLE_INTERRUPT);
 }
 
 /**
@@ -191,7 +217,8 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 	/*
 	 *	Clear the synch command doorbell to start on a clean slate.
 	 */
-	src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+	if (!dev->msi_enabled)
+		src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 
 	/*
 	 *	Disable doorbell interrupts
@@ -221,11 +248,14 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 			/*
 			 *	Mon960 will set doorbell0 bit when it has completed the command.
 			 */
-			if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) {
+			if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) {
 				/*
 				 *	Clear the doorbell.
 				 */
-				src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+				if (dev->msi_enabled)
+					aac_src_access_devreg(dev, AAC_CLEAR_SYNC_BIT);
+				else
+					src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 				ok = 1;
 				break;
 			}
@@ -254,11 +284,13 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 			*r3 = readl(&dev->IndexRegs->Mailbox[3]);
 		if (r4)
 			*r4 = readl(&dev->IndexRegs->Mailbox[4]);
-
+		if (command == GET_COMM_PREFERRED_SETTINGS)
+			dev->max_msix = readl(&dev->IndexRegs->Mailbox[5]) & 0xFFFF;
 		/*
 		 *	Clear the synch command doorbell.
 		 */
-		src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+		if (!dev->msi_enabled)
+			src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 	}
 
 	/*
@@ -335,9 +367,14 @@ static void aac_src_notify_adapter(struct aac_dev *dev, u32 event)
 static void aac_src_start_adapter(struct aac_dev *dev)
 {
 	struct aac_init *init;
+	int i;
 
 	 /* reset host_rrq_idx first */
-	dev->host_rrq_idx = 0;
+	for (i = 0; i < dev->max_msix; i++) {
+		dev->host_rrq_idx[i] = i * dev->vector_cap;
+		atomic_set(&dev->rrq_outstanding[i], 0);
+	}
+	dev->fibs_pushed_no = 0;
 
 	init = dev->init;
 	init->HostElapsedSeconds = cpu_to_le32(get_seconds());
@@ -400,6 +437,33 @@ static int aac_src_deliver_message(struct fib *fib)
 	q->numpending++;
 	spin_unlock_irqrestore(q->lock, qflags);
 
+	if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest &&
+	    dev->max_msix > 1) {
+		u_int16_t vector_no, first_choice = 0xffff;
+
+		vector_no = dev->fibs_pushed_no % dev->max_msix;
+		do {
+			vector_no += 1;
+			if (vector_no == dev->max_msix)
+				vector_no = 1;
+			if (atomic_read(&dev->rrq_outstanding[vector_no]) <
+			    dev->vector_cap)
+				break;
+			if (0xffff == first_choice)
+				first_choice = vector_no;
+			else if (vector_no == first_choice)
+				break;
+		} while (1);
+		if (vector_no == first_choice)
+			vector_no = 0;
+		atomic_inc(&dev->rrq_outstanding[vector_no]);
+		if (dev->fibs_pushed_no == 0xffffffff)
+			dev->fibs_pushed_no = 0;
+		else
+			dev->fibs_pushed_no++;
+		fib->hw_fib_va->header.Handle += (vector_no << 16);
+	}
+
 	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
 		/* Calculate the amount to the fibsize bits */
 		fibsize = (hdr_size + 127) / 128 - 1;
@@ -502,10 +566,19 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 			0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
 			if (bled || (var != 0x00000001))
 				return -EINVAL;
+
+		if ((dev->pdev->device == PMC_DEVICE_S7 ||
+		    dev->pdev->device == PMC_DEVICE_S8 ||
+		    dev->pdev->device == PMC_DEVICE_S9) && dev->msi_enabled) {
+			aac_src_access_devreg(dev, AAC_ENABLE_INTX);
+			dev->msi_enabled = 0;
+			msleep(5000); /* Delay 5 seconds */
+		}
+
 		if (dev->supplement_adapter_info.SupportedOptions2 &
 			AAC_OPTION_DOORBELL_RESET) {
 			src_writel(dev, MUnit.IDR, reset_mask);
-			msleep(5000); /* Delay 5 seconds */
+			ssleep(45);
 		}
 	}
 
@@ -646,8 +719,11 @@ int aac_src_init(struct aac_dev *dev)
 
 	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 
+	dev->aac_msix[0].vector_no = 0;
+	dev->aac_msix[0].dev = dev;
+
 	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
-			IRQF_SHARED, "aacraid", dev) < 0) {
+			IRQF_SHARED, "aacraid", &(dev->aac_msix[0]))  < 0) {
 
 		if (dev->msi)
 			pci_disable_msi(dev->pdev);
@@ -688,6 +764,7 @@ int aac_srcv_init(struct aac_dev *dev)
 	unsigned long status;
 	int restart = 0;
 	int instance = dev->id;
+	int i, j;
 	const char *name = dev->name;
 
 	dev->a_ops.adapter_ioremap = aac_srcv_ioremap;
@@ -802,14 +879,36 @@ int aac_srcv_init(struct aac_dev *dev)
 		goto error_iounmap;
 	if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE2)
 		goto error_iounmap;
-	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
-	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
-		IRQF_SHARED, "aacraid", dev) < 0) {
-		if (dev->msi)
-			pci_disable_msi(dev->pdev);
-		printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
-			name, instance);
-		goto error_iounmap;
+	if (dev->msi_enabled)
+		aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
+	if (!dev->sync_mode && dev->msi_enabled && dev->max_msix > 1) {
+		for (i = 0; i < dev->max_msix; i++) {
+			dev->aac_msix[i].vector_no = i;
+			dev->aac_msix[i].dev = dev;
+
+			if (request_irq(dev->msixentry[i].vector, dev->a_ops.adapter_intr,
+					0, "aacraid", &(dev->aac_msix[i]))) {
+				printk(KERN_ERR "%s%d: Failed to register IRQ for vector %d.\n",
+						name, instance, i);
+				for (j = 0 ; j < i ; j++)
+					free_irq(dev->msixentry[j].vector,
+						 &(dev->aac_msix[j]));
+				pci_disable_msix(dev->pdev);
+				goto error_iounmap;
+			}
+		}
+	} else {
+		dev->aac_msix[0].vector_no = 0;
+		dev->aac_msix[0].dev = dev;
+
+		if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
+				IRQF_SHARED, "aacraid", &(dev->aac_msix[0])) < 0) {
+			if (dev->msi)
+				pci_disable_msi(dev->pdev);
+			printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
+					name, instance);
+			goto error_iounmap;
+		}
 	}
 	dev->dbg_base = dev->base_start;
 	dev->dbg_base_mapped = dev->base;
@@ -831,3 +930,87 @@ error_iounmap:
 	return -1;
 }
 
+void aac_src_access_devreg(struct aac_dev *dev, int mode)
+{
+	u_int32_t val;
+
+	switch (mode) {
+	case AAC_ENABLE_INTERRUPT:
+		src_writel(dev, MUnit.OIMR, dev->OIMR = (dev->msi_enabled ? AAC_INT_ENABLE_TYPE1_MSIX :
+									    AAC_INT_ENABLE_TYPE1_INTX));
+		break;
+
+	case AAC_DISABLE_INTERRUPT:
+		src_writel(dev, MUnit.OIMR, dev->OIMR = AAC_INT_DISABLE_ALL);
+		break;
+
+	case AAC_ENABLE_MSIX:
+		/* set bit 6 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x40;
+		src_writel(dev,  MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		/* unmask int. */
+		val = PMC_ALL_INTERRUPT_BITS;
+		src_writel(dev, MUnit.IOAR, val);
+		val = src_readl(dev, MUnit.OIMR);
+		src_writel(dev, MUnit.OIMR,
+				val & (~(PMC_GLOBAL_INT_BIT2 | PMC_GLOBAL_INT_BIT0)));
+		break;
+
+	case AAC_DISABLE_MSIX:
+		/* reset bit 6 */
+		val = src_readl(dev, MUnit.IDR);
+		val &= ~0x40;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_CLEAR_AIF_BIT:
+		/* set bit 5 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x20;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_CLEAR_SYNC_BIT:
+		/* set bit 4 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x10;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_ENABLE_INTX:
+		/* set bit 7 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x80;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		/* unmask int. */
+		val = PMC_ALL_INTERRUPT_BITS;
+		src_writel(dev, MUnit.IOAR, val);
+		src_readl(dev, MUnit.IOAR);
+		val = src_readl(dev, MUnit.OIMR);
+		src_writel(dev, MUnit.OIMR,
+				val & (~(PMC_GLOBAL_INT_BIT2)));
+		break;
+
+	default:
+		break;
+	}
+}
+
+static int aac_src_get_sync_status(struct aac_dev *dev)
+{
+
+	int val;
+
+	if (dev->msi_enabled)
+		val = src_readl(dev, MUnit.ODR_MSI) & 0x1000 ? 1 : 0;
+	else
+		val = src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT;
+
+	return val;
+}
-- 
1.7.7.3

RE: [PATCH 4/7] aacraid: MSI-x support

[Achim Leubner]

Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>


-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 4, 2015 9:39 AM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 4/7] aacraid: MSI-x support

Add MSI-x interrupt mode support.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aachba.c   |    6 +-
 drivers/scsi/aacraid/aacraid.h  |   79 ++++++++-
 drivers/scsi/aacraid/comminit.c |   86 +++++++++-
 drivers/scsi/aacraid/commsup.c  |   19 ++-
 drivers/scsi/aacraid/dpcsup.c   |    9 +-
 drivers/scsi/aacraid/linit.c    |   18 ++-
 drivers/scsi/aacraid/src.c      |  365 +++++++++++++++++++++++++++++----------
 7 files changed, 473 insertions(+), 109 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 0819644..eb524e6 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -473,7 +473,7 @@ static void get_container_name_callback(void *context, struct fib * fibptr)
 	if ((le32_to_cpu(get_name_reply->status) == CT_OK)
 	 && (get_name_reply->data[0] != '\0')) {
 		char *sp = get_name_reply->data;
-		sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
+		sp[sizeof(((struct aac_get_name_resp *)NULL)->data)] = '\0';
 		while (*sp == ' ')
 			++sp;
 		if (*sp) {
@@ -613,7 +613,9 @@ static void _aac_probe_container1(void * context, struct fib * fibptr)
 	int status;
 
 	dresp = (struct aac_mount *) fib_data(fibptr);
-	dresp->mnt[0].capacityhigh = 0;
+	if (!(fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+	    AAC_OPTION_VARIABLE_BLOCK_SIZE))
+		dresp->mnt[0].capacityhigh = 0;
 	if ((le32_to_cpu(dresp->status) != ST_OK) ||
 	    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
 		_aac_probe_container2(context, fibptr); diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 93579f3..c162a65 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -6,11 +6,61 @@
 #define nblank(x) _nblank(x)[0]
 
 #include <linux/interrupt.h>
+#include <linux/pci.h>
 
 /*------------------------------------------------------------------------------
  *              D E F I N E S
  *----------------------------------------------------------------------------*/
 
+#define AAC_MAX_MSIX		32	/* vectors */
+#define AAC_PCI_MSI_ENABLE	0x8000
+
+enum {
+	AAC_ENABLE_INTERRUPT	= 0x0,
+	AAC_DISABLE_INTERRUPT,
+	AAC_ENABLE_MSIX,
+	AAC_DISABLE_MSIX,
+	AAC_CLEAR_AIF_BIT,
+	AAC_CLEAR_SYNC_BIT,
+	AAC_ENABLE_INTX
+};
+
+#define AAC_INT_MODE_INTX		(1<<0)
+#define AAC_INT_MODE_MSI		(1<<1)
+#define AAC_INT_MODE_AIF		(1<<2)
+#define AAC_INT_MODE_SYNC		(1<<3)
+
+#define AAC_INT_ENABLE_TYPE1_INTX	0xfffffffb
+#define AAC_INT_ENABLE_TYPE1_MSIX	0xfffffffa
+#define AAC_INT_DISABLE_ALL		0xffffffff
+
+/* Bit definitions in IOA->Host Interrupt Register */
+#define PMC_TRANSITION_TO_OPERATIONAL	(0x80000000 >> 0)
+#define PMC_IOARCB_TRANSFER_FAILED	(0x80000000 >> 3)
+#define PMC_IOA_UNIT_CHECK		(0x80000000 >> 4)
+#define PMC_NO_HOST_RRQ_FOR_CMD_RESPONSE (0x80000000 >> 5)
+#define PMC_CRITICAL_IOA_OP_IN_PROGRESS	(0x80000000 >> 6)
+#define PMC_IOARRIN_LOST		(0x80000000 >> 27)
+#define PMC_SYSTEM_BUS_MMIO_ERROR	(0x80000000 >> 28)
+#define PMC_IOA_PROCESSOR_IN_ERROR_STATE (0x80000000 >> 29)
+#define PMC_HOST_RRQ_VALID		(0x80000000 >> 30)
+#define PMC_OPERATIONAL_STATUS		(0x80000000 >> 0)
+#define PMC_ALLOW_MSIX_VECTOR0		(0x80000000 >> 31)
+
+#define PMC_IOA_ERROR_INTERRUPTS	(PMC_IOARCB_TRANSFER_FAILED | \
+					 PMC_IOA_UNIT_CHECK | \
+					 PMC_NO_HOST_RRQ_FOR_CMD_RESPONSE | \
+					 PMC_IOARRIN_LOST | \
+					 PMC_SYSTEM_BUS_MMIO_ERROR | \
+					 PMC_IOA_PROCESSOR_IN_ERROR_STATE)
+
+#define PMC_ALL_INTERRUPT_BITS		(PMC_IOA_ERROR_INTERRUPTS | \
+					 PMC_HOST_RRQ_VALID | \
+					 PMC_TRANSITION_TO_OPERATIONAL | \
+					 PMC_ALLOW_MSIX_VECTOR0)
+#define	PMC_GLOBAL_INT_BIT2		0x00000004
+#define	PMC_GLOBAL_INT_BIT0		0x00000001
+
 #ifndef AAC_DRIVER_BUILD
 # define AAC_DRIVER_BUILD 30300
 # define AAC_DRIVER_BRANCH "-ms"
@@ -36,6 +86,7 @@
 #define CONTAINER_TO_ID(cont)		(cont)
 #define CONTAINER_TO_LUN(cont)		(0)
 
+#define PMC_DEVICE_S6	0x28b
 #define PMC_DEVICE_S7	0x28c
 #define PMC_DEVICE_S8	0x28d
 #define PMC_DEVICE_S9	0x28f
@@ -434,7 +485,7 @@ enum fib_xfer_state {  struct aac_init  {
 	__le32	InitStructRevision;
-	__le32	MiniPortRevision;
+	__le32	NoOfMSIXVectors;
 	__le32	fsrev;
 	__le32	CommHeaderAddress;
 	__le32	FastIoCommAreaAddress;
@@ -755,7 +806,8 @@ struct rkt_registers {
 
 struct src_mu_registers {
 				/*	PCI*| Name */
-	__le32	reserved0[8];	/*	00h | Reserved */
+	__le32	reserved0[6];	/*	00h | Reserved */
+	__le32	IOAR[2];	/*	18h | IOA->host interrupt register */
 	__le32	IDR;		/*	20h | Inbound Doorbell Register */
 	__le32	IISR;		/*	24h | Inbound Int. Status Register */
 	__le32	reserved1[3];	/*	28h | Reserved */
@@ -767,17 +819,18 @@ struct src_mu_registers {
 	__le32	OMR;		/*	bch | Outbound Message Register */
 	__le32	IQ_L;		/*  c0h | Inbound Queue (Low address) */
 	__le32	IQ_H;		/*  c4h | Inbound Queue (High address) */
+	__le32	ODR_MSI;	/*  c8h | MSI register for sync./AIF */
 };
 
 struct src_registers {
-	struct src_mu_registers MUnit;	/* 00h - c7h */
+	struct src_mu_registers MUnit;	/* 00h - cbh */
 	union {
 		struct {
-			__le32 reserved1[130790];	/* c8h - 7fc5fh */
+			__le32 reserved1[130789];	/* cch - 7fc5fh */
 			struct src_inbound IndexRegs;	/* 7fc60h */
 		} tupelo;
 		struct {
-			__le32 reserved1[974];		/* c8h - fffh */
+			__le32 reserved1[973];		/* cch - fffh */
 			struct src_inbound IndexRegs;	/* 1000h */
 		} denali;
 	} u;
@@ -1028,6 +1081,11 @@ struct aac_bus_info_response {
 #define AAC_OPT_NEW_COMM_TYPE3		cpu_to_le32(1<<30)
 #define AAC_OPT_NEW_COMM_TYPE4		cpu_to_le32(1<<31)
 
+/* MSIX context */
+struct aac_msix_ctx {
+	int		vector_no;
+	struct aac_dev	*dev;
+};
 
 struct aac_dev
 {
@@ -1083,8 +1141,9 @@ struct aac_dev
 						 * if AAC_COMM_MESSAGE_TYPE1 */
 
 	dma_addr_t		host_rrq_pa;	/* phys. address */
-	u32			host_rrq_idx;	/* index into rrq buffer */
-
+	u32			host_rrq_idx[AAC_MAX_MSIX];	/* index into rrq buffer */
+	atomic_t		rrq_outstanding[AAC_MAX_MSIX];
+	u32			fibs_pushed_no;
 	struct pci_dev		*pdev;		/* Our PCI interface */
 	void *			printfbuf;	/* pointer to buffer used for printf's from the adapter */
 	void *			comm_addr;	/* Base address of Comm area */
@@ -1153,6 +1212,11 @@ struct aac_dev
 	int			sync_mode;
 	struct fib		*sync_fib;
 	struct list_head	sync_fib_list;
+	u32			max_msix;	/* max. MSI-X vectors */
+	u32			vector_cap;	/* MSI-X vector capab.*/
+	int			msi_enabled;	/* MSI/MSI-X enabled */
+	struct msix_entry	msixentry[AAC_MAX_MSIX];
+	struct aac_msix_ctx	aac_msix[AAC_MAX_MSIX]; /* context */
 };
 
 #define aac_adapter_interrupt(dev) \
@@ -2035,6 +2099,7 @@ void aac_consumer_free(struct aac_dev * dev, struct aac_queue * q, u32 qnum);  int aac_fib_complete(struct fib * context);  #define fib_data(fibctx) ((void *)(fibctx)->hw_fib_va->data)  struct aac_dev *aac_init_adapter(struct aac_dev *dev);
+void aac_src_access_devreg(struct aac_dev *dev, int mode);
 int aac_get_config_status(struct aac_dev *dev, int commit_flag);  int aac_get_containers(struct aac_dev *dev);  int aac_scsi_cmd(struct scsi_cmnd *cmd); diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 177b094..29c35c8 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -43,6 +43,8 @@
 
 #include "aacraid.h"
 
+static void aac_define_int_mode(struct aac_dev *dev);
+
 struct aac_common aac_config = {
 	.irq_mod = 1
 };
@@ -91,7 +93,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 	init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION);
 	if (dev->max_fib_size != sizeof(struct hw_fib))
 		init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4);
-	init->MiniPortRevision = cpu_to_le32(Sa_MINIPORT_REVISION);
+	init->NoOfMSIXVectors = cpu_to_le32(Sa_MINIPORT_REVISION);
 	init->fsrev = cpu_to_le32(dev->fsrev);
 
 	/*
@@ -140,7 +142,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 			INITFLAGS_NEW_COMM_TYPE2_SUPPORTED | INITFLAGS_FAST_JBOD_SUPPORTED);
 		init->HostRRQ_AddrHigh = cpu_to_le32((u32)((u64)dev->host_rrq_pa >> 32));
 		init->HostRRQ_AddrLow = cpu_to_le32((u32)(dev->host_rrq_pa & 0xffffffff));
-		init->MiniPortRevision = cpu_to_le32(0L);		/* number of MSI-X */
+		init->NoOfMSIXVectors = cpu_to_le32(dev->max_msix);	/* number of MSI-X */
 		dprintk((KERN_WARNING"aacraid: New Comm Interface type2 enabled\n"));
 	}
 
@@ -228,6 +230,11 @@ int aac_send_shutdown(struct aac_dev * dev)
 	/* FIB should be freed only after getting the response from the F/W */
 	if (status != -ERESTARTSYS)
 		aac_fib_free(fibctx);
+	if ((dev->pdev->device == PMC_DEVICE_S7 ||
+	     dev->pdev->device == PMC_DEVICE_S8 ||
+	     dev->pdev->device == PMC_DEVICE_S9) &&
+	     dev->msi_enabled)
+		aac_src_access_devreg(dev, AAC_ENABLE_INTX);
 	return status;
 }
 
@@ -388,6 +395,8 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 			}
 		}
 	}
+	dev->max_msix = 0;
+	dev->msi_enabled = 0;
 	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
 	  0, 0, 0, 0, 0, 0,
 	  status+0, status+1, status+2, status+3, status+4)) @@ -461,6 +470,11 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	if (host->can_queue > AAC_NUM_IO_FIB)
 		host->can_queue = AAC_NUM_IO_FIB;
 
+	if (dev->pdev->device == PMC_DEVICE_S6 ||
+	    dev->pdev->device == PMC_DEVICE_S7 ||
+	    dev->pdev->device == PMC_DEVICE_S8 ||
+	    dev->pdev->device == PMC_DEVICE_S9)
+		aac_define_int_mode(dev);
 	/*
 	 *	Ok now init the communication subsystem
 	 */
@@ -489,4 +503,70 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	return dev;
 }
 
-    
+static void aac_define_int_mode(struct aac_dev *dev) {
+
+	int i, msi_count;
+
+	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
+	if (dev->max_msix == 0 ||
+	    dev->pdev->device == PMC_DEVICE_S6 ||
+	    dev->sync_mode) {
+		dev->max_msix = 1;
+		dev->vector_cap = dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB;
+		return;
+	}
+
+	msi_count = min(dev->max_msix,
+		(unsigned int)num_online_cpus());
+
+	dev->max_msix = msi_count;
+
+	if (msi_count > AAC_MAX_MSIX)
+		msi_count = AAC_MAX_MSIX;
+
+	for (i = 0; i < msi_count; i++)
+		dev->msixentry[i].entry = i;
+
+	if (msi_count > 1 && pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) 
+{
+
+		i = pci_enable_msix(dev->pdev, dev->msixentry, msi_count);
+		 /* Check how many MSIX vectors are allocated */
+		if (i >= 0) {
+			dev->msi_enabled = 1;
+			if (i) {
+				msi_count = i;
+				if (pci_enable_msix(dev->pdev, dev->msixentry, msi_count)) {
+					dev->msi_enabled = 0;
+					printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n",
+							dev->name, dev->id, i);
+				}
+			}
+		} else {
+			dev->msi_enabled = 0;
+			printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n",
+					dev->name, dev->id, i);
+		}
+	}
+
+	if (!dev->msi_enabled) {
+		msi_count = 1;
+		i = !pci_enable_msi(dev->pdev);
+
+		if (i) {
+			dev->msi_enabled = 1;
+			dev->msi = 1;
+		} else {
+			printk(KERN_ERR "%s%d: MSI not supported!! Will try INTx 0x%x.\n",
+					dev->name, dev->id, i);
+		}
+	}
+
+	if (!dev->msi_enabled)
+		dev->max_msix = msi_count = 1;
+	else {
+		if (dev->max_msix > msi_count)
+			dev->max_msix = msi_count;
+	}
+	dev->vector_cap = (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) / 
+msi_count; }
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 090ba68..83c5d3f 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -868,7 +868,7 @@ void aac_printf(struct aac_dev *dev, u32 val)
  *	dispatches it to the appropriate routine for handling.
  */
 
-#define AIF_SNIFF_TIMEOUT	(30*HZ)
+#define AIF_SNIFF_TIMEOUT	(500*HZ)
 static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)  {
 	struct hw_fib * hw_fib = fibptr->hw_fib_va; @@ -1251,7 +1251,7 @@ retry_next:
 static int _aac_reset_adapter(struct aac_dev *aac, int forced)  {
 	int index, quirks;
-	int retval;
+	int retval, i;
 	struct Scsi_Host *host;
 	struct scsi_device *dev;
 	struct scsi_cmnd *command;
@@ -1319,7 +1319,20 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced)
 	aac->comm_phys = 0;
 	kfree(aac->queues);
 	aac->queues = NULL;
-	free_irq(aac->pdev->irq, aac);
+	if (aac->pdev->device == PMC_DEVICE_S6 ||
+	    aac->pdev->device == PMC_DEVICE_S7 ||
+	    aac->pdev->device == PMC_DEVICE_S8 ||
+	    aac->pdev->device == PMC_DEVICE_S9) {
+		if (aac->max_msix > 1) {
+			for (i = 0; i < aac->max_msix; i++)
+				free_irq(aac->msixentry[i].vector, &(aac->aac_msix[i]));
+			pci_disable_msix(aac->pdev);
+		} else {
+			free_irq(aac->pdev->irq, &(aac->aac_msix[0]));
+		}
+	} else {
+		free_irq(aac->pdev->irq, aac);
+	}
 	if (aac->msi)
 		pci_disable_msi(aac->pdev);
 	kfree(aac->fsa_dev);
diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c index d81b281..2e39466 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -389,8 +389,13 @@ unsigned int aac_intr_normal(struct aac_dev *dev, u32 index,
 			 *	NOTE:  we cannot touch the fib after this
 			 *	    call, because it may have been deallocated.
 			 */
-			fib->flags &= FIB_CONTEXT_FLAG_FASTRESP;
-			fib->callback(fib->callback_data, fib);
+			if (likely(fib->callback && fib->callback_data)) {
+				fib->flags &= FIB_CONTEXT_FLAG_FASTRESP;
+				fib->callback(fib->callback_data, fib);
+			} else {
+				aac_fib_complete(fib);
+				aac_fib_free(fib);
+			}
 		} else {
 			unsigned long flagv;
 	  		dprintk((KERN_INFO "event_wait up\n")); diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index fdcdf9f..7813a9b 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1082,6 +1082,8 @@ static struct scsi_host_template aac_driver_template = {
 
 static void __aac_shutdown(struct aac_dev * aac)  {
+	int i;
+
 	if (aac->aif_thread) {
 		int i;
 		/* Clear out events first */
@@ -1095,9 +1097,23 @@ static void __aac_shutdown(struct aac_dev * aac)
 	}
 	aac_send_shutdown(aac);
 	aac_adapter_disable_int(aac);
-	free_irq(aac->pdev->irq, aac);
+	if (aac->pdev->device == PMC_DEVICE_S6 ||
+	    aac->pdev->device == PMC_DEVICE_S7 ||
+	    aac->pdev->device == PMC_DEVICE_S8 ||
+	    aac->pdev->device == PMC_DEVICE_S9) {
+		if (aac->max_msix > 1) {
+			for (i = 0; i < aac->max_msix; i++)
+				free_irq(aac->msixentry[i].vector, &(aac->aac_msix[i]));
+		} else {
+			free_irq(aac->pdev->irq, &(aac->aac_msix[0]));
+		}
+	} else {
+		free_irq(aac->pdev->irq, aac);
+	}
 	if (aac->msi)
 		pci_disable_msi(aac->pdev);
+	else if (aac->max_msix > 1)
+		pci_disable_msix(aac->pdev);
 }
 
 static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c index 9c65aed..c010248 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -44,98 +44,124 @@
 
 #include "aacraid.h"
 
-static irqreturn_t aac_src_intr_message(int irq, void *dev_id)
+static int aac_src_get_sync_status(struct aac_dev *dev);
+
+irqreturn_t aac_src_intr_message(int irq, void *dev_id)
 {
-	struct aac_dev *dev = dev_id;
+	struct aac_msix_ctx *ctx;
+	struct aac_dev *dev;
 	unsigned long bellbits, bellbits_shifted;
-	int our_interrupt = 0;
-	int isFastResponse;
+	int vector_no;
+	int isFastResponse, mode;
 	u32 index, handle;
 
-	bellbits = src_readl(dev, MUnit.ODR_R);
-	if (bellbits & PmDoorBellResponseSent) {
-		bellbits = PmDoorBellResponseSent;
-		/* handle async. status */
-		src_writel(dev, MUnit.ODR_C, bellbits);
-		src_readl(dev, MUnit.ODR_C);
-		our_interrupt = 1;
-		index = dev->host_rrq_idx;
-		for (;;) {
-			isFastResponse = 0;
-			/* remove toggle bit (31) */
-			handle = le32_to_cpu(dev->host_rrq[index]) & 0x7fffffff;
-			/* check fast response bit (30) */
-			if (handle & 0x40000000)
-				isFastResponse = 1;
-			handle &= 0x0000ffff;
-			if (handle == 0)
-				break;
-
-			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
-
-			dev->host_rrq[index++] = 0;
-			if (index == dev->scsi_host_ptr->can_queue +
-						AAC_NUM_MGT_FIB)
-				index = 0;
-			dev->host_rrq_idx = index;
+	ctx = (struct aac_msix_ctx *)dev_id;
+	dev = ctx->dev;
+	vector_no = ctx->vector_no;
+
+	if (dev->msi_enabled) {
+		mode = AAC_INT_MODE_MSI;
+		if (vector_no == 0) {
+			bellbits = src_readl(dev, MUnit.ODR_MSI);
+			if (bellbits & 0x40000)
+				mode |= AAC_INT_MODE_AIF;
+			if (bellbits & 0x1000)
+				mode |= AAC_INT_MODE_SYNC;
 		}
 	} else {
-		bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
-		if (bellbits_shifted & DoorBellAifPending) {
+		mode = AAC_INT_MODE_INTX;
+		bellbits = src_readl(dev, MUnit.ODR_R);
+		if (bellbits & PmDoorBellResponseSent) {
+			bellbits = PmDoorBellResponseSent;
+			src_writel(dev, MUnit.ODR_C, bellbits);
+			src_readl(dev, MUnit.ODR_C);
+		} else {
+			bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
 			src_writel(dev, MUnit.ODR_C, bellbits);
 			src_readl(dev, MUnit.ODR_C);
-			our_interrupt = 1;
-			/* handle AIF */
-			aac_intr_normal(dev, 0, 2, 0, NULL);
-		} else if (bellbits_shifted & OUTBOUNDDOORBELL_0) {
-			unsigned long sflags;
-			struct list_head *entry;
-			int send_it = 0;
-			extern int aac_sync_mode;
 
+			if (bellbits_shifted & DoorBellAifPending)
+				mode |= AAC_INT_MODE_AIF;
+			else if (bellbits_shifted & OUTBOUNDDOORBELL_0)
+				mode |= AAC_INT_MODE_SYNC;
+		}
+	}
+
+	if (mode & AAC_INT_MODE_SYNC) {
+		unsigned long sflags;
+		struct list_head *entry;
+		int send_it = 0;
+		extern int aac_sync_mode;
+
+		if (!aac_sync_mode && !dev->msi_enabled) {
 			src_writel(dev, MUnit.ODR_C, bellbits);
 			src_readl(dev, MUnit.ODR_C);
+		}
 
-			if (!aac_sync_mode) {
-				src_writel(dev, MUnit.ODR_C, bellbits);
-				src_readl(dev, MUnit.ODR_C);
-				our_interrupt = 1;
+		if (dev->sync_fib) {
+			if (dev->sync_fib->callback)
+				dev->sync_fib->callback(dev->sync_fib->callback_data,
+					dev->sync_fib);
+			spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
+			if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
+				dev->management_fib_count--;
+				up(&dev->sync_fib->event_wait);
 			}
-
-			if (dev->sync_fib) {
-				our_interrupt = 1;
-				if (dev->sync_fib->callback)
-					dev->sync_fib->callback(dev->sync_fib->callback_data,
-						dev->sync_fib);
-				spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
-				if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
-					dev->management_fib_count--;
-					up(&dev->sync_fib->event_wait);
-				}
-				spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags);
-				spin_lock_irqsave(&dev->sync_lock, sflags);
-				if (!list_empty(&dev->sync_fib_list)) {
-					entry = dev->sync_fib_list.next;
-					dev->sync_fib = list_entry(entry, struct fib, fiblink);
-					list_del(entry);
-					send_it = 1;
-				} else {
-					dev->sync_fib = NULL;
-				}
-				spin_unlock_irqrestore(&dev->sync_lock, sflags);
-				if (send_it) {
-					aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
-						(u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0,
-						NULL, NULL, NULL, NULL, NULL);
-				}
+			spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags);
+			spin_lock_irqsave(&dev->sync_lock, sflags);
+			if (!list_empty(&dev->sync_fib_list)) {
+				entry = dev->sync_fib_list.next;
+				dev->sync_fib = list_entry(entry, struct fib, fiblink);
+				list_del(entry);
+				send_it = 1;
+			} else {
+				dev->sync_fib = NULL;
+			}
+			spin_unlock_irqrestore(&dev->sync_lock, sflags);
+			if (send_it) {
+				aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
+					(u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0,
+					NULL, NULL, NULL, NULL, NULL);
 			}
 		}
+		if (!dev->msi_enabled)
+			mode = 0;
+
 	}
 
-	if (our_interrupt) {
-		return IRQ_HANDLED;
+	if (mode & AAC_INT_MODE_AIF) {
+		/* handle AIF */
+		aac_intr_normal(dev, 0, 2, 0, NULL);
+		if (dev->msi_enabled)
+			aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT);
+		mode = 0;
 	}
-	return IRQ_NONE;
+
+	if (mode) {
+		index = dev->host_rrq_idx[vector_no];
+
+		for (;;) {
+			isFastResponse = 0;
+			/* remove toggle bit (31) */
+			handle = (dev->host_rrq[index] & 0x7fffffff);
+			/* check fast response bit (30) */
+			if (handle & 0x40000000)
+				isFastResponse = 1;
+			handle &= 0x0000ffff;
+			if (handle == 0)
+				break;
+			if (dev->msi_enabled && dev->max_msix > 1)
+				atomic_dec(&dev->rrq_outstanding[vector_no]);
+			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
+			dev->host_rrq[index++] = 0;
+			if (index == (vector_no + 1) * dev->vector_cap)
+				index = vector_no * dev->vector_cap;
+			dev->host_rrq_idx[vector_no] = index;
+		}
+		mode = 0;
+	}
+
+	return IRQ_HANDLED;
 }
 
 /**
@@ -155,7 +181,7 @@ static void aac_src_disable_interrupt(struct aac_dev *dev)
 
 static void aac_src_enable_interrupt_message(struct aac_dev *dev)  {
-	src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8);
+	aac_src_access_devreg(dev, AAC_ENABLE_INTERRUPT);
 }
 
 /**
@@ -191,7 +217,8 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 	/*
 	 *	Clear the synch command doorbell to start on a clean slate.
 	 */
-	src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+	if (!dev->msi_enabled)
+		src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 
 	/*
 	 *	Disable doorbell interrupts
@@ -221,11 +248,14 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 			/*
 			 *	Mon960 will set doorbell0 bit when it has completed the command.
 			 */
-			if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) {
+			if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) {
 				/*
 				 *	Clear the doorbell.
 				 */
-				src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+				if (dev->msi_enabled)
+					aac_src_access_devreg(dev, AAC_CLEAR_SYNC_BIT);
+				else
+					src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 				ok = 1;
 				break;
 			}
@@ -254,11 +284,13 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 			*r3 = readl(&dev->IndexRegs->Mailbox[3]);
 		if (r4)
 			*r4 = readl(&dev->IndexRegs->Mailbox[4]);
-
+		if (command == GET_COMM_PREFERRED_SETTINGS)
+			dev->max_msix = readl(&dev->IndexRegs->Mailbox[5]) & 0xFFFF;
 		/*
 		 *	Clear the synch command doorbell.
 		 */
-		src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+		if (!dev->msi_enabled)
+			src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 	}
 
 	/*
@@ -335,9 +367,14 @@ static void aac_src_notify_adapter(struct aac_dev *dev, u32 event)  static void aac_src_start_adapter(struct aac_dev *dev)  {
 	struct aac_init *init;
+	int i;
 
 	 /* reset host_rrq_idx first */
-	dev->host_rrq_idx = 0;
+	for (i = 0; i < dev->max_msix; i++) {
+		dev->host_rrq_idx[i] = i * dev->vector_cap;
+		atomic_set(&dev->rrq_outstanding[i], 0);
+	}
+	dev->fibs_pushed_no = 0;
 
 	init = dev->init;
 	init->HostElapsedSeconds = cpu_to_le32(get_seconds()); @@ -400,6 +437,33 @@ static int aac_src_deliver_message(struct fib *fib)
 	q->numpending++;
 	spin_unlock_irqrestore(q->lock, qflags);
 
+	if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest &&
+	    dev->max_msix > 1) {
+		u_int16_t vector_no, first_choice = 0xffff;
+
+		vector_no = dev->fibs_pushed_no % dev->max_msix;
+		do {
+			vector_no += 1;
+			if (vector_no == dev->max_msix)
+				vector_no = 1;
+			if (atomic_read(&dev->rrq_outstanding[vector_no]) <
+			    dev->vector_cap)
+				break;
+			if (0xffff == first_choice)
+				first_choice = vector_no;
+			else if (vector_no == first_choice)
+				break;
+		} while (1);
+		if (vector_no == first_choice)
+			vector_no = 0;
+		atomic_inc(&dev->rrq_outstanding[vector_no]);
+		if (dev->fibs_pushed_no == 0xffffffff)
+			dev->fibs_pushed_no = 0;
+		else
+			dev->fibs_pushed_no++;
+		fib->hw_fib_va->header.Handle += (vector_no << 16);
+	}
+
 	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
 		/* Calculate the amount to the fibsize bits */
 		fibsize = (hdr_size + 127) / 128 - 1; @@ -502,10 +566,19 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 			0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
 			if (bled || (var != 0x00000001))
 				return -EINVAL;
+
+		if ((dev->pdev->device == PMC_DEVICE_S7 ||
+		    dev->pdev->device == PMC_DEVICE_S8 ||
+		    dev->pdev->device == PMC_DEVICE_S9) && dev->msi_enabled) {
+			aac_src_access_devreg(dev, AAC_ENABLE_INTX);
+			dev->msi_enabled = 0;
+			msleep(5000); /* Delay 5 seconds */
+		}
+
 		if (dev->supplement_adapter_info.SupportedOptions2 &
 			AAC_OPTION_DOORBELL_RESET) {
 			src_writel(dev, MUnit.IDR, reset_mask);
-			msleep(5000); /* Delay 5 seconds */
+			ssleep(45);
 		}
 	}
 
@@ -646,8 +719,11 @@ int aac_src_init(struct aac_dev *dev)
 
 	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 
+	dev->aac_msix[0].vector_no = 0;
+	dev->aac_msix[0].dev = dev;
+
 	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
-			IRQF_SHARED, "aacraid", dev) < 0) {
+			IRQF_SHARED, "aacraid", &(dev->aac_msix[0]))  < 0) {
 
 		if (dev->msi)
 			pci_disable_msi(dev->pdev);
@@ -688,6 +764,7 @@ int aac_srcv_init(struct aac_dev *dev)
 	unsigned long status;
 	int restart = 0;
 	int instance = dev->id;
+	int i, j;
 	const char *name = dev->name;
 
 	dev->a_ops.adapter_ioremap = aac_srcv_ioremap; @@ -802,14 +879,36 @@ int aac_srcv_init(struct aac_dev *dev)
 		goto error_iounmap;
 	if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE2)
 		goto error_iounmap;
-	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
-	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
-		IRQF_SHARED, "aacraid", dev) < 0) {
-		if (dev->msi)
-			pci_disable_msi(dev->pdev);
-		printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
-			name, instance);
-		goto error_iounmap;
+	if (dev->msi_enabled)
+		aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
+	if (!dev->sync_mode && dev->msi_enabled && dev->max_msix > 1) {
+		for (i = 0; i < dev->max_msix; i++) {
+			dev->aac_msix[i].vector_no = i;
+			dev->aac_msix[i].dev = dev;
+
+			if (request_irq(dev->msixentry[i].vector, dev->a_ops.adapter_intr,
+					0, "aacraid", &(dev->aac_msix[i]))) {
+				printk(KERN_ERR "%s%d: Failed to register IRQ for vector %d.\n",
+						name, instance, i);
+				for (j = 0 ; j < i ; j++)
+					free_irq(dev->msixentry[j].vector,
+						 &(dev->aac_msix[j]));
+				pci_disable_msix(dev->pdev);
+				goto error_iounmap;
+			}
+		}
+	} else {
+		dev->aac_msix[0].vector_no = 0;
+		dev->aac_msix[0].dev = dev;
+
+		if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
+				IRQF_SHARED, "aacraid", &(dev->aac_msix[0])) < 0) {
+			if (dev->msi)
+				pci_disable_msi(dev->pdev);
+			printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
+					name, instance);
+			goto error_iounmap;
+		}
 	}
 	dev->dbg_base = dev->base_start;
 	dev->dbg_base_mapped = dev->base;
@@ -831,3 +930,87 @@ error_iounmap:
 	return -1;
 }
 
+void aac_src_access_devreg(struct aac_dev *dev, int mode) {
+	u_int32_t val;
+
+	switch (mode) {
+	case AAC_ENABLE_INTERRUPT:
+		src_writel(dev, MUnit.OIMR, dev->OIMR = (dev->msi_enabled ? AAC_INT_ENABLE_TYPE1_MSIX :
+									    AAC_INT_ENABLE_TYPE1_INTX));
+		break;
+
+	case AAC_DISABLE_INTERRUPT:
+		src_writel(dev, MUnit.OIMR, dev->OIMR = AAC_INT_DISABLE_ALL);
+		break;
+
+	case AAC_ENABLE_MSIX:
+		/* set bit 6 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x40;
+		src_writel(dev,  MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		/* unmask int. */
+		val = PMC_ALL_INTERRUPT_BITS;
+		src_writel(dev, MUnit.IOAR, val);
+		val = src_readl(dev, MUnit.OIMR);
+		src_writel(dev, MUnit.OIMR,
+				val & (~(PMC_GLOBAL_INT_BIT2 | PMC_GLOBAL_INT_BIT0)));
+		break;
+
+	case AAC_DISABLE_MSIX:
+		/* reset bit 6 */
+		val = src_readl(dev, MUnit.IDR);
+		val &= ~0x40;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_CLEAR_AIF_BIT:
+		/* set bit 5 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x20;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_CLEAR_SYNC_BIT:
+		/* set bit 4 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x10;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_ENABLE_INTX:
+		/* set bit 7 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x80;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		/* unmask int. */
+		val = PMC_ALL_INTERRUPT_BITS;
+		src_writel(dev, MUnit.IOAR, val);
+		src_readl(dev, MUnit.IOAR);
+		val = src_readl(dev, MUnit.OIMR);
+		src_writel(dev, MUnit.OIMR,
+				val & (~(PMC_GLOBAL_INT_BIT2)));
+		break;
+
+	default:
+		break;
+	}
+}
+
+static int aac_src_get_sync_status(struct aac_dev *dev) {
+
+	int val;
+
+	if (dev->msi_enabled)
+		val = src_readl(dev, MUnit.ODR_MSI) & 0x1000 ? 1 : 0;
+	else
+		val = src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT;
+
+	return val;
+}
--
1.7.7.3

Re: [PATCH 4/7] aacraid: MSI-x support

[Hannes Reinecke]

On 03/17/2015 04:27 PM, Achim Leubner wrote:
> Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>
> 
> 
> -----Original Message-----
> From: Mahesh Rajashekhara 
> Sent: Wednesday, March 4, 2015 9:39 AM
> To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
> Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
> Subject: [PATCH 4/7] aacraid: MSI-x support
> 
> Add MSI-x interrupt mode support.
> 
> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
> ---
>  drivers/scsi/aacraid/aachba.c   |    6 +-
>  drivers/scsi/aacraid/aacraid.h  |   79 ++++++++-
>  drivers/scsi/aacraid/comminit.c |   86 +++++++++-
>  drivers/scsi/aacraid/commsup.c  |   19 ++-
>  drivers/scsi/aacraid/dpcsup.c   |    9 +-
>  drivers/scsi/aacraid/linit.c    |   18 ++-
>  drivers/scsi/aacraid/src.c      |  365 +++++++++++++++++++++++++++++----------
>  7 files changed, 473 insertions(+), 109 deletions(-)
> 
> diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 0819644..eb524e6 100644
> --- a/drivers/scsi/aacraid/aachba.c
> +++ b/drivers/scsi/aacraid/aachba.c
> @@ -473,7 +473,7 @@ static void get_container_name_callback(void *context, struct fib * fibptr)
>  	if ((le32_to_cpu(get_name_reply->status) == CT_OK)
>  	 && (get_name_reply->data[0] != '\0')) {
>  		char *sp = get_name_reply->data;
> -		sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
> +		sp[sizeof(((struct aac_get_name_resp *)NULL)->data)] = '\0';
>  		while (*sp == ' ')
>  			++sp;
>  		if (*sp) {
> @@ -613,7 +613,9 @@ static void _aac_probe_container1(void * context, struct fib * fibptr)
>  	int status;
>  
>  	dresp = (struct aac_mount *) fib_data(fibptr);
> -	dresp->mnt[0].capacityhigh = 0;
> +	if (!(fibptr->dev->supplement_adapter_info.SupportedOptions2 &
> +	    AAC_OPTION_VARIABLE_BLOCK_SIZE))
> +		dresp->mnt[0].capacityhigh = 0;
>  	if ((le32_to_cpu(dresp->status) != ST_OK) ||
>  	    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
>  		_aac_probe_container2(context, fibptr); diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 93579f3..c162a65 100644
> --- a/drivers/scsi/aacraid/aacraid.h
> +++ b/drivers/scsi/aacraid/aacraid.h
> @@ -6,11 +6,61 @@
>  #define nblank(x) _nblank(x)[0]
>  
>  #include <linux/interrupt.h>
> +#include <linux/pci.h>
>  
>  /*------------------------------------------------------------------------------
>   *              D E F I N E S
>   *----------------------------------------------------------------------------*/
>  
> +#define AAC_MAX_MSIX		32	/* vectors */
> +#define AAC_PCI_MSI_ENABLE	0x8000
> +
> +enum {
> +	AAC_ENABLE_INTERRUPT	= 0x0,
> +	AAC_DISABLE_INTERRUPT,
> +	AAC_ENABLE_MSIX,
> +	AAC_DISABLE_MSIX,
> +	AAC_CLEAR_AIF_BIT,
> +	AAC_CLEAR_SYNC_BIT,
> +	AAC_ENABLE_INTX
> +};
> +
> +#define AAC_INT_MODE_INTX		(1<<0)
> +#define AAC_INT_MODE_MSI		(1<<1)
> +#define AAC_INT_MODE_AIF		(1<<2)
> +#define AAC_INT_MODE_SYNC		(1<<3)
> +
> +#define AAC_INT_ENABLE_TYPE1_INTX	0xfffffffb
> +#define AAC_INT_ENABLE_TYPE1_MSIX	0xfffffffa
> +#define AAC_INT_DISABLE_ALL		0xffffffff
> +
> +/* Bit definitions in IOA->Host Interrupt Register */
> +#define PMC_TRANSITION_TO_OPERATIONAL	(0x80000000 >> 0)
> +#define PMC_IOARCB_TRANSFER_FAILED	(0x80000000 >> 3)
> +#define PMC_IOA_UNIT_CHECK		(0x80000000 >> 4)
> +#define PMC_NO_HOST_RRQ_FOR_CMD_RESPONSE (0x80000000 >> 5)
> +#define PMC_CRITICAL_IOA_OP_IN_PROGRESS	(0x80000000 >> 6)
> +#define PMC_IOARRIN_LOST		(0x80000000 >> 27)
> +#define PMC_SYSTEM_BUS_MMIO_ERROR	(0x80000000 >> 28)
> +#define PMC_IOA_PROCESSOR_IN_ERROR_STATE (0x80000000 >> 29)
> +#define PMC_HOST_RRQ_VALID		(0x80000000 >> 30)
> +#define PMC_OPERATIONAL_STATUS		(0x80000000 >> 0)
> +#define PMC_ALLOW_MSIX_VECTOR0		(0x80000000 >> 31)
> +
How positively curious.
Typically you define a git mask by shifting _left_, not right.

> +#define PMC_IOA_ERROR_INTERRUPTS	(PMC_IOARCB_TRANSFER_FAILED | \
> +					 PMC_IOA_UNIT_CHECK | \
> +					 PMC_NO_HOST_RRQ_FOR_CMD_RESPONSE | \
> +					 PMC_IOARRIN_LOST | \
> +					 PMC_SYSTEM_BUS_MMIO_ERROR | \
> +					 PMC_IOA_PROCESSOR_IN_ERROR_STATE)
> +
> +#define PMC_ALL_INTERRUPT_BITS		(PMC_IOA_ERROR_INTERRUPTS | \
> +					 PMC_HOST_RRQ_VALID | \
> +					 PMC_TRANSITION_TO_OPERATIONAL | \
> +					 PMC_ALLOW_MSIX_VECTOR0)
> +#define	PMC_GLOBAL_INT_BIT2		0x00000004
> +#define	PMC_GLOBAL_INT_BIT0		0x00000001
> +
>  #ifndef AAC_DRIVER_BUILD
>  # define AAC_DRIVER_BUILD 30300
>  # define AAC_DRIVER_BRANCH "-ms"
> @@ -36,6 +86,7 @@
>  #define CONTAINER_TO_ID(cont)		(cont)
>  #define CONTAINER_TO_LUN(cont)		(0)
>  
> +#define PMC_DEVICE_S6	0x28b
>  #define PMC_DEVICE_S7	0x28c
>  #define PMC_DEVICE_S8	0x28d
>  #define PMC_DEVICE_S9	0x28f
> @@ -434,7 +485,7 @@ enum fib_xfer_state {  struct aac_init  {
>  	__le32	InitStructRevision;
> -	__le32	MiniPortRevision;
> +	__le32	NoOfMSIXVectors;
>  	__le32	fsrev;
>  	__le32	CommHeaderAddress;
>  	__le32	FastIoCommAreaAddress;
> @@ -755,7 +806,8 @@ struct rkt_registers {
>  
>  struct src_mu_registers {
>  				/*	PCI*| Name */
> -	__le32	reserved0[8];	/*	00h | Reserved */
> +	__le32	reserved0[6];	/*	00h | Reserved */
> +	__le32	IOAR[2];	/*	18h | IOA->host interrupt register */
>  	__le32	IDR;		/*	20h | Inbound Doorbell Register */
>  	__le32	IISR;		/*	24h | Inbound Int. Status Register */
>  	__le32	reserved1[3];	/*	28h | Reserved */
> @@ -767,17 +819,18 @@ struct src_mu_registers {
>  	__le32	OMR;		/*	bch | Outbound Message Register */
>  	__le32	IQ_L;		/*  c0h | Inbound Queue (Low address) */
>  	__le32	IQ_H;		/*  c4h | Inbound Queue (High address) */
> +	__le32	ODR_MSI;	/*  c8h | MSI register for sync./AIF */
>  };
>  
>  struct src_registers {
> -	struct src_mu_registers MUnit;	/* 00h - c7h */
> +	struct src_mu_registers MUnit;	/* 00h - cbh */
>  	union {
>  		struct {
> -			__le32 reserved1[130790];	/* c8h - 7fc5fh */
> +			__le32 reserved1[130789];	/* cch - 7fc5fh */
>  			struct src_inbound IndexRegs;	/* 7fc60h */
>  		} tupelo;
>  		struct {
> -			__le32 reserved1[974];		/* c8h - fffh */
> +			__le32 reserved1[973];		/* cch - fffh */
>  			struct src_inbound IndexRegs;	/* 1000h */
>  		} denali;
>  	} u;
> @@ -1028,6 +1081,11 @@ struct aac_bus_info_response {
>  #define AAC_OPT_NEW_COMM_TYPE3		cpu_to_le32(1<<30)
>  #define AAC_OPT_NEW_COMM_TYPE4		cpu_to_le32(1<<31)
>  
> +/* MSIX context */
> +struct aac_msix_ctx {
> +	int		vector_no;
> +	struct aac_dev	*dev;
> +};
>  
>  struct aac_dev
>  {
> @@ -1083,8 +1141,9 @@ struct aac_dev
>  						 * if AAC_COMM_MESSAGE_TYPE1 */
>  
>  	dma_addr_t		host_rrq_pa;	/* phys. address */
> -	u32			host_rrq_idx;	/* index into rrq buffer */
> -
> +	u32			host_rrq_idx[AAC_MAX_MSIX];	/* index into rrq buffer */
> +	atomic_t		rrq_outstanding[AAC_MAX_MSIX];
> +	u32			fibs_pushed_no;
>  	struct pci_dev		*pdev;		/* Our PCI interface */
>  	void *			printfbuf;	/* pointer to buffer used for printf's from the adapter */
>  	void *			comm_addr;	/* Base address of Comm area */
> @@ -1153,6 +1212,11 @@ struct aac_dev
>  	int			sync_mode;
>  	struct fib		*sync_fib;
>  	struct list_head	sync_fib_list;
> +	u32			max_msix;	/* max. MSI-X vectors */
> +	u32			vector_cap;	/* MSI-X vector capab.*/
> +	int			msi_enabled;	/* MSI/MSI-X enabled */
> +	struct msix_entry	msixentry[AAC_MAX_MSIX];
> +	struct aac_msix_ctx	aac_msix[AAC_MAX_MSIX]; /* context */
>  };
>  
>  #define aac_adapter_interrupt(dev) \
> @@ -2035,6 +2099,7 @@ void aac_consumer_free(struct aac_dev * dev, struct aac_queue * q, u32 qnum);  int aac_fib_complete(struct fib * context);  #define fib_data(fibctx) ((void *)(fibctx)->hw_fib_va->data)  struct aac_dev *aac_init_adapter(struct aac_dev *dev);
> +void aac_src_access_devreg(struct aac_dev *dev, int mode);
>  int aac_get_config_status(struct aac_dev *dev, int commit_flag);  int aac_get_containers(struct aac_dev *dev);  int aac_scsi_cmd(struct scsi_cmnd *cmd); diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 177b094..29c35c8 100644
> --- a/drivers/scsi/aacraid/comminit.c
> +++ b/drivers/scsi/aacraid/comminit.c
> @@ -43,6 +43,8 @@
>  
>  #include "aacraid.h"
>  
> +static void aac_define_int_mode(struct aac_dev *dev);
> +
>  struct aac_common aac_config = {
>  	.irq_mod = 1
>  };
> @@ -91,7 +93,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
>  	init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION);
>  	if (dev->max_fib_size != sizeof(struct hw_fib))
>  		init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4);
> -	init->MiniPortRevision = cpu_to_le32(Sa_MINIPORT_REVISION);
> +	init->NoOfMSIXVectors = cpu_to_le32(Sa_MINIPORT_REVISION);
>  	init->fsrev = cpu_to_le32(dev->fsrev);
>  
>  	/*
Now that you switched the field definition from 'MiniPortRevision'
to 'NoOfMSIXVectors', shouldn't you rather introduce a
'Sa_MSIXVECTORS' here instead of using the old definitions?

> @@ -140,7 +142,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
>  			INITFLAGS_NEW_COMM_TYPE2_SUPPORTED | INITFLAGS_FAST_JBOD_SUPPORTED);
>  		init->HostRRQ_AddrHigh = cpu_to_le32((u32)((u64)dev->host_rrq_pa >> 32));
>  		init->HostRRQ_AddrLow = cpu_to_le32((u32)(dev->host_rrq_pa & 0xffffffff));
> -		init->MiniPortRevision = cpu_to_le32(0L);		/* number of MSI-X */
> +		init->NoOfMSIXVectors = cpu_to_le32(dev->max_msix);	/* number of MSI-X */
>  		dprintk((KERN_WARNING"aacraid: New Comm Interface type2 enabled\n"));
>  	}
>  
> @@ -228,6 +230,11 @@ int aac_send_shutdown(struct aac_dev * dev)
>  	/* FIB should be freed only after getting the response from the F/W */
>  	if (status != -ERESTARTSYS)
>  		aac_fib_free(fibctx);
> +	if ((dev->pdev->device == PMC_DEVICE_S7 ||
> +	     dev->pdev->device == PMC_DEVICE_S8 ||
> +	     dev->pdev->device == PMC_DEVICE_S9) &&
> +	     dev->msi_enabled)
> +		aac_src_access_devreg(dev, AAC_ENABLE_INTX);
>  	return status;
>  }
>  
> @@ -388,6 +395,8 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
>  			}
>  		}
>  	}
> +	dev->max_msix = 0;
> +	dev->msi_enabled = 0;
>  	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
>  	  0, 0, 0, 0, 0, 0,
>  	  status+0, status+1, status+2, status+3, status+4)) @@ -461,6 +470,11 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
>  	if (host->can_queue > AAC_NUM_IO_FIB)
>  		host->can_queue = AAC_NUM_IO_FIB;
>  
> +	if (dev->pdev->device == PMC_DEVICE_S6 ||
> +	    dev->pdev->device == PMC_DEVICE_S7 ||
> +	    dev->pdev->device == PMC_DEVICE_S8 ||
> +	    dev->pdev->device == PMC_DEVICE_S9)
> +		aac_define_int_mode(dev);
>  	/*
>  	 *	Ok now init the communication subsystem
>  	 */
> @@ -489,4 +503,70 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
>  	return dev;
>  }
>  
> -    
> +static void aac_define_int_mode(struct aac_dev *dev) {
> +
> +	int i, msi_count;
> +
> +	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
> +	if (dev->max_msix == 0 ||
> +	    dev->pdev->device == PMC_DEVICE_S6 ||
> +	    dev->sync_mode) {
> +		dev->max_msix = 1;
> +		dev->vector_cap = dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB;
> +		return;
> +	}
> +
> +	msi_count = min(dev->max_msix,
> +		(unsigned int)num_online_cpus());
> +
> +	dev->max_msix = msi_count;
> +
> +	if (msi_count > AAC_MAX_MSIX)
> +		msi_count = AAC_MAX_MSIX;
> +
> +	for (i = 0; i < msi_count; i++)
> +		dev->msixentry[i].entry = i;
> +
> +	if (msi_count > 1 && pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) 
> +{
> +
Braces should be at the same line as the condition.

> +		i = pci_enable_msix(dev->pdev, dev->msixentry, msi_count);
> +		 /* Check how many MSIX vectors are allocated */
> +		if (i >= 0) {
> +			dev->msi_enabled = 1;
> +			if (i) {
> +				msi_count = i;
> +				if (pci_enable_msix(dev->pdev, dev->msixentry, msi_count)) {
> +					dev->msi_enabled = 0;
> +					printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n",
> +							dev->name, dev->id, i);
> +				}
> +			}
> +		} else {
> +			dev->msi_enabled = 0;
> +			printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n",
> +					dev->name, dev->id, i);
> +		}
> +	}
> +
> +	if (!dev->msi_enabled) {
> +		msi_count = 1;
> +		i = !pci_enable_msi(dev->pdev);
> +

Yikes. Please don't do that; use (!i) in the condition instead.

> +		if (i) {
> +			dev->msi_enabled = 1;
> +			dev->msi = 1;
> +		} else {
> +			printk(KERN_ERR "%s%d: MSI not supported!! Will try INTx 0x%x.\n",
> +					dev->name, dev->id, i);
> +		}
> +	}
> +
> +	if (!dev->msi_enabled)
> +		dev->max_msix = msi_count = 1;
> +	else {
> +		if (dev->max_msix > msi_count)
> +			dev->max_msix = msi_count;
> +	}
> +	dev->vector_cap = (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) / 
> +msi_count; }
Closing braces should be on an individual line.

Also here: please remember to run checkpatch before submitting.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 5/7] aacraid: vpd page code 0x83 support

[Mahesh Rajashekhara]

Add vpd page code 0x83 support

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aachba.c   |  154 ++++++++++++++++++++++++++++++++++++---
 drivers/scsi/aacraid/aacraid.h  |    4 +
 drivers/scsi/aacraid/comminit.c |    8 ++-
 drivers/scsi/aacraid/commsup.c  |   12 +---
 drivers/scsi/aacraid/linit.c    |   20 +----
 drivers/scsi/aacraid/src.c      |   34 +++++++--
 6 files changed, 185 insertions(+), 47 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index eb524e6..3e4e0c8 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -163,6 +163,45 @@ struct inquiry_data {
 	u8 inqd_prl[4];	/* Product Revision Level */
 };
 
+/* Added for VPD 0x83 */
+typedef struct {
+	u8 CodeSet:4;	/* VPD_CODE_SET */
+	u8 Reserved:4;
+	u8 IdentifierType:4;	/* VPD_IDENTIFIER_TYPE */
+	u8 Reserved2:4;
+	u8 Reserved3;
+	u8 IdentifierLength;
+	u8 VendId[8];
+	u8 ProductId[16];
+	u8 SerialNumber[8];	/* SN in ASCII */
+} TVPD_ID_Descriptor_Type_1;
+
+typedef struct {
+	u8 CodeSet:4;	/* VPD_CODE_SET */
+	u8 Reserved:4;
+	u8 IdentifierType:4;	/* VPD_IDENTIFIER_TYPE */
+	u8 Reserved2:4;
+	u8 Reserved3;
+	u8 IdentifierLength;
+	struct TEU64Id {
+		u32 Serial;
+		 /* The serial number supposed to be 40 bits,
+		  * bit we only support 32, so make the last byte zero. */
+		u8 Reserved;
+		u8 VendId[3];
+	} EU64Id;
+} TVPD_ID_Descriptor_Type_2;
+
+typedef struct {
+	u8 DeviceType:5;
+	u8 DeviceTypeQualifier:3;
+	u8 PageCode;
+	u8 Reserved;
+	u8 PageLength;
+	TVPD_ID_Descriptor_Type_1 IdDescriptorType1;
+	TVPD_ID_Descriptor_Type_2 IdDescriptorType2;
+} TVPD_Page83;
+
 /*
  *              M O D U L E   G L O B A L S
  */
@@ -420,6 +459,9 @@ int aac_get_containers(struct aac_dev *dev)
 	if (status >= 0) {
 		dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 		maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
+		if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+		    AAC_OPTION_SUPPORTED_240_VOLUMES)
+			maximum_num_containers = le32_to_cpu(dresp->MaxSimpleVolumes);
 		aac_fib_complete(fibptr);
 	}
 	/* FIB should be freed only after getting the response from the F/W */
@@ -889,14 +931,81 @@ static void get_container_serial_callback(void *context, struct fib * fibptr)
 	get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
 	/* Failure is irrelevant, using default value instead */
 	if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
-		char sp[13];
-		/* EVPD bit set */
-		sp[0] = INQD_PDT_DA;
-		sp[1] = scsicmd->cmnd[2];
-		sp[2] = 0;
-		sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
-		  le32_to_cpu(get_serial_reply->uid));
-		scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
+		/*Check to see if it's for VPD 0x83 or 0x80 */
+		if (scsicmd->cmnd[2] == 0x83) {
+			/* vpd page 0x83 - Device Identification Page */
+			int i;
+			TVPD_Page83 VPDPage83Data;
+
+			memset(((u8 *)&VPDPage83Data), 0,
+			       sizeof(VPDPage83Data));
+
+			/* DIRECT_ACCESS_DEVIC */
+			VPDPage83Data.DeviceType = 0;
+			/* DEVICE_CONNECTED */
+			VPDPage83Data.DeviceTypeQualifier = 0;
+			/* VPD_DEVICE_IDENTIFIERS */
+			VPDPage83Data.PageCode = 0x83;
+			VPDPage83Data.Reserved = 0;
+			VPDPage83Data.PageLength = sizeof(VPDPage83Data.IdDescriptorType1) +
+				sizeof(VPDPage83Data.IdDescriptorType2);
+
+			/* T10 Vendor Identifier Field Format */
+			/* VpdCodeSetAscii */
+			VPDPage83Data.IdDescriptorType1.CodeSet = 2;
+			/* VpdIdentifierTypeVendorId */
+			VPDPage83Data.IdDescriptorType1.IdentifierType = 1;
+			VPDPage83Data.IdDescriptorType1.IdentifierLength = sizeof(VPDPage83Data.IdDescriptorType1) - 4;
+
+			/* "ADAPTEC " for adaptec */
+			memcpy(VPDPage83Data.IdDescriptorType1.VendId, "ADAPTEC ",
+				sizeof(VPDPage83Data.IdDescriptorType1.VendId));
+			memcpy(VPDPage83Data.IdDescriptorType1.ProductId, "ARRAY           ",
+				sizeof(VPDPage83Data.IdDescriptorType1.ProductId));
+
+			/* Convert to ascii based serial number.
+			 * The LSB is the the end.
+			 */
+			for (i = 0; i < 8; i++) {
+				u8 temp = (u8)((get_serial_reply->uid >> ((7 - i) * 4)) & 0xF);
+				if (temp  > 0x9) {
+					VPDPage83Data.IdDescriptorType1.SerialNumber[i] = 'A' + (temp - 0xA);
+				} else {
+					VPDPage83Data.IdDescriptorType1.SerialNumber[i] = '0' + temp;
+				}
+			}
+
+			/* EUI-64 Vendor Identifier Field Format,
+			 * 24 bits for VendId and 40 bits for SN.
+			 */
+			/* VpdCodeSetBinary */
+			VPDPage83Data.IdDescriptorType2.CodeSet = 1;
+			/* VpdIdentifierTypeEUI64 */
+			VPDPage83Data.IdDescriptorType2.IdentifierType = 2;
+			VPDPage83Data.IdDescriptorType2.IdentifierLength = sizeof(VPDPage83Data.IdDescriptorType2) - 4;
+
+			/* 0x0000055 for IBM, 0x0000D0 for Adaptec */
+			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[0] = 0xD0;
+			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[1] = 0;
+			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[2] = 0;
+
+			VPDPage83Data.IdDescriptorType2.EU64Id.Serial = get_serial_reply->uid;
+			VPDPage83Data.IdDescriptorType2.EU64Id.Reserved = 0;
+
+			/* Move the inquiry data to the response buffer. */
+			scsi_sg_copy_from_buffer(scsicmd, &VPDPage83Data,
+						 sizeof(VPDPage83Data));
+		} else {
+			/* It must be for VPD 0x80 */
+			char sp[13];
+			/* EVPD bit set */
+			sp[0] = INQD_PDT_DA;
+			sp[1] = scsicmd->cmnd[2];
+			sp[2] = 0;
+			sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
+				le32_to_cpu(get_serial_reply->uid));
+			scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
+		}
 	}
 
 	scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
@@ -2302,9 +2411,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			  INQD_PDT_PROC : INQD_PDT_DA;
 			if (scsicmd->cmnd[2] == 0) {
 				/* supported vital product data pages */
-				arr[3] = 2;
+				arr[3] = 3;
 				arr[4] = 0x0;
 				arr[5] = 0x80;
+				arr[6] = 0x83;
 				arr[1] = scsicmd->cmnd[2];
 				scsi_sg_copy_from_buffer(scsicmd, &inq_data,
 							 sizeof(inq_data));
@@ -2323,6 +2433,16 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 				/* SLES 10 SP1 special */
 				scsicmd->result = DID_OK << 16 |
 				  COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
+			} else if (scsicmd->cmnd[2] == 0x83) {
+				/* vpd page 0x83 - Device Identification Page */
+				char *sno = (char *)&inq_data;
+				sno[3] = setinqserial(dev, &sno[4],
+						      scmd_id(scsicmd));
+				if (aac_wwn != 2)
+					return aac_get_container_serial(
+						scsicmd);
+				scsicmd->result = DID_OK << 16 |
+				  COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 			} else {
 				/* vpd page not implemented */
 				scsicmd->result = DID_OK << 16 |
@@ -2468,6 +2588,15 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			mpd.bd.block_length[0] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
 			mpd.bd.block_length[1] = (fsa_dev_ptr[cid].block_size >> 8) &  0xff;
 			mpd.bd.block_length[2] = fsa_dev_ptr[cid].block_size  & 0xff;
+
+			mpd.mpc_buf[0] = scsicmd->cmnd[2];
+			if (scsicmd->cmnd[2] == 0x1C) {
+				mpd.mpc_buf[1] = 0xa;	/* page length */
+				mpd.hd.data_length = 23;	/* Mode data length */
+			} else {
+				mpd.hd.data_length = 15;	/* Mode data length */
+			}
+
 			if (capacity > 0xffffff) {
 				mpd.bd.block_count[0] = 0xff;
 				mpd.bd.block_count[1] = 0xff;
@@ -2486,9 +2615,12 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			mpd.mpc_buf[2] = ((aac_cache & 6) == 2)
 				? 0 : 0x04; /* WCE */
 			mode_buf_length = sizeof(mpd);
-			if (mode_buf_length > scsicmd->cmnd[4])
-				mode_buf_length = scsicmd->cmnd[4];
 		}
+
+		if (mode_buf_length > scsicmd->cmnd[4])
+			mode_buf_length = scsicmd->cmnd[4];
+		else
+			mode_buf_length = sizeof(mpd);
 		scsi_sg_copy_from_buffer(scsicmd, (char *)&mpd, mode_buf_length);
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index c162a65..a37762e 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1015,6 +1015,7 @@ struct aac_supplement_adapter_info
 #define AAC_OPTION_POWER_MANAGEMENT	cpu_to_le32(0x00000004)
 #define AAC_OPTION_DOORBELL_RESET	cpu_to_le32(0x00004000)
 #define AAC_OPTION_VARIABLE_BLOCK_SIZE	cpu_to_le32(0x00040000) /* 4KB sector size */
+#define AAC_OPTION_SUPPORTED_240_VOLUMES	cpu_to_le32(0x10000000)
 #define AAC_SIS_VERSION_V3	3
 #define AAC_SIS_SLOT_UNKNOWN	0xFF
 
@@ -1212,11 +1213,13 @@ struct aac_dev
 	int			sync_mode;
 	struct fib		*sync_fib;
 	struct list_head	sync_fib_list;
+	u32			doorbell_mask;	/* from GET_ADAPTER_PROP */
 	u32			max_msix;	/* max. MSI-X vectors */
 	u32			vector_cap;	/* MSI-X vector capab.*/
 	int			msi_enabled;	/* MSI/MSI-X enabled */
 	struct msix_entry	msixentry[AAC_MAX_MSIX];
 	struct aac_msix_ctx	aac_msix[AAC_MAX_MSIX]; /* context */
+	u8			adapter_shutdown;
 };
 
 #define aac_adapter_interrupt(dev) \
@@ -1749,6 +1752,7 @@ struct aac_get_container_count_resp {
 	__le32		MaxContainers;
 	__le32		ContainerSwitchEntries;
 	__le32		MaxPartitions;
+	__le32		MaxSimpleVolumes;
 };
 
 
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 29c35c8..c3e13ae 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -53,7 +53,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 {
 	unsigned char *base;
 	unsigned long size, align;
-	const unsigned long fibsize = 4096;
+	const unsigned long fibsize = dev->max_fib_size;
 	const unsigned long printfbufsiz = 256;
 	unsigned long host_rrq_size = 0;
 	struct aac_init *init;
@@ -230,6 +230,7 @@ int aac_send_shutdown(struct aac_dev * dev)
 	/* FIB should be freed only after getting the response from the F/W */
 	if (status != -ERESTARTSYS)
 		aac_fib_free(fibctx);
+	dev->adapter_shutdown = 1;
 	if ((dev->pdev->device == PMC_DEVICE_S7 ||
 	     dev->pdev->device == PMC_DEVICE_S8 ||
 	     dev->pdev->device == PMC_DEVICE_S9) &&
@@ -357,8 +358,9 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	dev->raw_io_interface = dev->raw_io_64 = 0;
 
 	if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
-		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
+		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, status+3, NULL)) &&
 	 		(status[0] == 0x00000001)) {
+		dev->doorbell_mask = status[3];
 		if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64))
 			dev->raw_io_64 = 1;
 		dev->sync_mode = aac_sync_mode;
@@ -397,6 +399,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	}
 	dev->max_msix = 0;
 	dev->msi_enabled = 0;
+	dev->adapter_shutdown = 0;
 	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
 	  0, 0, 0, 0, 0, 0,
 	  status+0, status+1, status+2, status+3, status+4))
@@ -508,6 +511,7 @@ static void aac_define_int_mode(struct aac_dev *dev)
 
 	int i, msi_count;
 
+	msi_count = i = 0;
 	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
 	if (dev->max_msix == 0 ||
 	    dev->pdev->device == PMC_DEVICE_S6 ||
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 83c5d3f..2bed445 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -208,14 +208,11 @@ struct fib *aac_fib_alloc(struct aac_dev *dev)
 
 void aac_fib_free(struct fib *fibptr)
 {
-	unsigned long flags, flagsv;
+	unsigned long flags;
 
-	spin_lock_irqsave(&fibptr->event_lock, flagsv);
 	if (fibptr->done == 2) {
-		spin_unlock_irqrestore(&fibptr->event_lock, flagsv);
 		return;
 	}
-	spin_unlock_irqrestore(&fibptr->event_lock, flagsv);
 
 	spin_lock_irqsave(&fibptr->dev->fib_lock, flags);
 	if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT))
@@ -775,7 +772,6 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
 
 int aac_fib_complete(struct fib *fibptr)
 {
-	unsigned long flags;
 	struct hw_fib * hw_fib = fibptr->hw_fib_va;
 
 	/*
@@ -798,12 +794,6 @@ int aac_fib_complete(struct fib *fibptr)
 	 *	command is complete that we had sent to the adapter and this
 	 *	cdb could be reused.
 	 */
-	spin_lock_irqsave(&fibptr->event_lock, flags);
-	if (fibptr->done == 2) {
-		spin_unlock_irqrestore(&fibptr->event_lock, flags);
-		return 0;
-	}
-	spin_unlock_irqrestore(&fibptr->event_lock, flags);
 
 	if((hw_fib->header.XferState & cpu_to_le32(SentFromHost)) &&
 		(hw_fib->header.XferState & cpu_to_le32(AdapterProcessed)))
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 7813a9b..4c5ba9e 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -56,7 +56,7 @@
 
 #include "aacraid.h"
 
-#define AAC_DRIVER_VERSION		"1.2-0"
+#define AAC_DRIVER_VERSION		"1.2-1"
 #ifndef AAC_DRIVER_BRANCH
 #define AAC_DRIVER_BRANCH		""
 #endif
@@ -65,7 +65,7 @@
 #ifdef AAC_DRIVER_BUILD
 #define _str(x) #x
 #define str(x) _str(x)
-#define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
+#define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION "." str(AAC_DRIVER_BUILD) "" AAC_DRIVER_BRANCH
 #else
 #define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION AAC_DRIVER_BRANCH
 #endif
@@ -253,19 +253,7 @@ static struct aac_driver_ident aac_drivers[] = {
 
 static int aac_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 {
-	struct Scsi_Host *host = cmd->device->host;
-	struct aac_dev *dev = (struct aac_dev *)host->hostdata;
-	u32 count = 0;
 	cmd->scsi_done = done;
-	for (; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
-		struct fib * fib = &dev->fibs[count];
-		struct scsi_cmnd * command;
-		if (fib->hw_fib_va->header.XferState &&
-		    ((command = fib->callback_data)) &&
-		    (command == cmd) &&
-		    (cmd->SCp.phase == AAC_OWNER_FIRMWARE))
-			return 0; /* Already owned by Adapter */
-	}
 	cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
 	return (aac_scsi_cmd(cmd) ? FAILED : 0);
 }
@@ -713,7 +701,9 @@ static long aac_cfg_ioctl(struct file *file,
 		unsigned int cmd, unsigned long arg)
 {
 	int ret;
-	if (!capable(CAP_SYS_RAWIO))
+	struct aac_dev *aac;
+	aac = (struct aac_dev *)file->private_data;
+	if (!capable(CAP_SYS_RAWIO) || aac->adapter_shutdown)
 		return -EPERM;
 	mutex_lock(&aac_mutex);
 	ret = aac_do_ioctl(file->private_data, cmd, (void __user *)arg);
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index c010248..82ff025 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -200,6 +200,7 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 	u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
 {
 	unsigned long start;
+	unsigned long delay;
 	int ok;
 
 	/*
@@ -240,10 +241,15 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 		ok = 0;
 		start = jiffies;
 
-		/*
-		 *	Wait up to 5 minutes
-		 */
-		while (time_before(jiffies, start+300*HZ)) {
+		if (command == IOP_RESET_ALWAYS) {
+			/* Wait up to 10 sec */
+			delay = 10*HZ;
+		} else {
+			/* Wait up to 5 minutes */
+			delay = 300*HZ;
+		}
+		while (time_before(jiffies, start+delay)) {
+
 			udelay(5);	/* Delay 5 microseconds to let Mon960 get info. */
 			/*
 			 *	Mon960 will set doorbell0 bit when it has completed the command.
@@ -562,10 +568,16 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 		if (bled)
 			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 				dev->name, dev->id, bled);
+		dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 		bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
 			0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
-			if (bled || (var != 0x00000001))
+			if ((bled || (var != 0x00000001)) && !dev->doorbell_mask)
 				return -EINVAL;
+			else if (dev->doorbell_mask) {
+				reset_mask = dev->doorbell_mask;
+				bled = 0;
+				var = 0x00000001;
+			}
 
 		if ((dev->pdev->device == PMC_DEVICE_S7 ||
 		    dev->pdev->device == PMC_DEVICE_S8 ||
@@ -575,10 +587,13 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 			msleep(5000); /* Delay 5 seconds */
 		}
 
-		if (dev->supplement_adapter_info.SupportedOptions2 &
-			AAC_OPTION_DOORBELL_RESET) {
+		if (!bled && (dev->supplement_adapter_info.SupportedOptions2 &
+			AAC_OPTION_DOORBELL_RESET)) {
 			src_writel(dev, MUnit.IDR, reset_mask);
 			ssleep(45);
+		} else {
+			src_writel(dev, MUnit.IDR, 0x100);
+			ssleep(45);
 		}
 	}
 
@@ -600,7 +615,6 @@ int aac_src_select_comm(struct aac_dev *dev, int comm)
 {
 	switch (comm) {
 	case AAC_COMM_MESSAGE:
-		dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 		dev->a_ops.adapter_intr = aac_src_intr_message;
 		dev->a_ops.adapter_deliver = aac_src_deliver_message;
 		break;
@@ -698,6 +712,7 @@ int aac_src_init(struct aac_dev *dev)
 	 */
 	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
 	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
+	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 	dev->a_ops.adapter_notify = aac_src_notify_adapter;
 	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 	dev->a_ops.adapter_check_health = aac_src_check_health;
@@ -735,6 +750,7 @@ int aac_src_init(struct aac_dev *dev)
 	dev->dbg_base = pci_resource_start(dev->pdev, 2);
 	dev->dbg_base_mapped = dev->regs.src.bar1;
 	dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
+	dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 
 	aac_adapter_enable_int(dev);
 
@@ -861,6 +877,7 @@ int aac_srcv_init(struct aac_dev *dev)
 	 */
 	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
 	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
+	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 	dev->a_ops.adapter_notify = aac_src_notify_adapter;
 	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 	dev->a_ops.adapter_check_health = aac_src_check_health;
@@ -913,6 +930,7 @@ int aac_srcv_init(struct aac_dev *dev)
 	dev->dbg_base = dev->base_start;
 	dev->dbg_base_mapped = dev->base;
 	dev->dbg_size = dev->base_size;
+	dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 
 	aac_adapter_enable_int(dev);
 
-- 
1.7.7.3

RE: [PATCH 5/7] aacraid: vpd page code 0x83 support

[Murthy Bhat]

Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>

-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 04, 2015 2:09 PM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 5/7] aacraid: vpd page code 0x83 support

Add vpd page code 0x83 support

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aachba.c   |  154 ++++++++++++++++++++++++++++++++++++---
 drivers/scsi/aacraid/aacraid.h  |    4 +
 drivers/scsi/aacraid/comminit.c |    8 ++-
 drivers/scsi/aacraid/commsup.c  |   12 +---
 drivers/scsi/aacraid/linit.c    |   20 +----
 drivers/scsi/aacraid/src.c      |   34 +++++++--
 6 files changed, 185 insertions(+), 47 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index eb524e6..3e4e0c8 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -163,6 +163,45 @@ struct inquiry_data {
 	u8 inqd_prl[4];	/* Product Revision Level */
 };
 
+/* Added for VPD 0x83 */
+typedef struct {
+	u8 CodeSet:4;	/* VPD_CODE_SET */
+	u8 Reserved:4;
+	u8 IdentifierType:4;	/* VPD_IDENTIFIER_TYPE */
+	u8 Reserved2:4;
+	u8 Reserved3;
+	u8 IdentifierLength;
+	u8 VendId[8];
+	u8 ProductId[16];
+	u8 SerialNumber[8];	/* SN in ASCII */
+} TVPD_ID_Descriptor_Type_1;
+
+typedef struct {
+	u8 CodeSet:4;	/* VPD_CODE_SET */
+	u8 Reserved:4;
+	u8 IdentifierType:4;	/* VPD_IDENTIFIER_TYPE */
+	u8 Reserved2:4;
+	u8 Reserved3;
+	u8 IdentifierLength;
+	struct TEU64Id {
+		u32 Serial;
+		 /* The serial number supposed to be 40 bits,
+		  * bit we only support 32, so make the last byte zero. */
+		u8 Reserved;
+		u8 VendId[3];
+	} EU64Id;
+} TVPD_ID_Descriptor_Type_2;
+
+typedef struct {
+	u8 DeviceType:5;
+	u8 DeviceTypeQualifier:3;
+	u8 PageCode;
+	u8 Reserved;
+	u8 PageLength;
+	TVPD_ID_Descriptor_Type_1 IdDescriptorType1;
+	TVPD_ID_Descriptor_Type_2 IdDescriptorType2;
+} TVPD_Page83;
+
 /*
  *              M O D U L E   G L O B A L S
  */
@@ -420,6 +459,9 @@ int aac_get_containers(struct aac_dev *dev)
 	if (status >= 0) {
 		dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 		maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
+		if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+		    AAC_OPTION_SUPPORTED_240_VOLUMES)
+			maximum_num_containers = le32_to_cpu(dresp->MaxSimpleVolumes);
 		aac_fib_complete(fibptr);
 	}
 	/* FIB should be freed only after getting the response from the F/W */
@@ -889,14 +931,81 @@ static void get_container_serial_callback(void *context, struct fib * fibptr)
 	get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
 	/* Failure is irrelevant, using default value instead */
 	if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
-		char sp[13];
-		/* EVPD bit set */
-		sp[0] = INQD_PDT_DA;
-		sp[1] = scsicmd->cmnd[2];
-		sp[2] = 0;
-		sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
-		  le32_to_cpu(get_serial_reply->uid));
-		scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
+		/*Check to see if it's for VPD 0x83 or 0x80 */
+		if (scsicmd->cmnd[2] == 0x83) {
+			/* vpd page 0x83 - Device Identification Page */
+			int i;
+			TVPD_Page83 VPDPage83Data;
+
+			memset(((u8 *)&VPDPage83Data), 0,
+			       sizeof(VPDPage83Data));
+
+			/* DIRECT_ACCESS_DEVIC */
+			VPDPage83Data.DeviceType = 0;
+			/* DEVICE_CONNECTED */
+			VPDPage83Data.DeviceTypeQualifier = 0;
+			/* VPD_DEVICE_IDENTIFIERS */
+			VPDPage83Data.PageCode = 0x83;
+			VPDPage83Data.Reserved = 0;
+			VPDPage83Data.PageLength = sizeof(VPDPage83Data.IdDescriptorType1) +
+				sizeof(VPDPage83Data.IdDescriptorType2);
+
+			/* T10 Vendor Identifier Field Format */
+			/* VpdCodeSetAscii */
+			VPDPage83Data.IdDescriptorType1.CodeSet = 2;
+			/* VpdIdentifierTypeVendorId */
+			VPDPage83Data.IdDescriptorType1.IdentifierType = 1;
+			VPDPage83Data.IdDescriptorType1.IdentifierLength = sizeof(VPDPage83Data.IdDescriptorType1) - 4;
+
+			/* "ADAPTEC " for adaptec */
+			memcpy(VPDPage83Data.IdDescriptorType1.VendId, "ADAPTEC ",
+				sizeof(VPDPage83Data.IdDescriptorType1.VendId));
+			memcpy(VPDPage83Data.IdDescriptorType1.ProductId, "ARRAY           ",
+				sizeof(VPDPage83Data.IdDescriptorType1.ProductId));
+
+			/* Convert to ascii based serial number.
+			 * The LSB is the the end.
+			 */
+			for (i = 0; i < 8; i++) {
+				u8 temp = (u8)((get_serial_reply->uid >> ((7 - i) * 4)) & 0xF);
+				if (temp  > 0x9) {
+					VPDPage83Data.IdDescriptorType1.SerialNumber[i] = 'A' + (temp - 0xA);
+				} else {
+					VPDPage83Data.IdDescriptorType1.SerialNumber[i] = '0' + temp;
+				}
+			}
+
+			/* EUI-64 Vendor Identifier Field Format,
+			 * 24 bits for VendId and 40 bits for SN.
+			 */
+			/* VpdCodeSetBinary */
+			VPDPage83Data.IdDescriptorType2.CodeSet = 1;
+			/* VpdIdentifierTypeEUI64 */
+			VPDPage83Data.IdDescriptorType2.IdentifierType = 2;
+			VPDPage83Data.IdDescriptorType2.IdentifierLength = sizeof(VPDPage83Data.IdDescriptorType2) - 4;
+
+			/* 0x0000055 for IBM, 0x0000D0 for Adaptec */
+			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[0] = 0xD0;
+			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[1] = 0;
+			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[2] = 0;
+
+			VPDPage83Data.IdDescriptorType2.EU64Id.Serial = get_serial_reply->uid;
+			VPDPage83Data.IdDescriptorType2.EU64Id.Reserved = 0;
+
+			/* Move the inquiry data to the response buffer. */
+			scsi_sg_copy_from_buffer(scsicmd, &VPDPage83Data,
+						 sizeof(VPDPage83Data));
+		} else {
+			/* It must be for VPD 0x80 */
+			char sp[13];
+			/* EVPD bit set */
+			sp[0] = INQD_PDT_DA;
+			sp[1] = scsicmd->cmnd[2];
+			sp[2] = 0;
+			sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
+				le32_to_cpu(get_serial_reply->uid));
+			scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
+		}
 	}
 
 	scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
@@ -2302,9 +2411,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			  INQD_PDT_PROC : INQD_PDT_DA;
 			if (scsicmd->cmnd[2] == 0) {
 				/* supported vital product data pages */
-				arr[3] = 2;
+				arr[3] = 3;
 				arr[4] = 0x0;
 				arr[5] = 0x80;
+				arr[6] = 0x83;
 				arr[1] = scsicmd->cmnd[2];
 				scsi_sg_copy_from_buffer(scsicmd, &inq_data,
 							 sizeof(inq_data));
@@ -2323,6 +2433,16 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 				/* SLES 10 SP1 special */
 				scsicmd->result = DID_OK << 16 |
 				  COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
+			} else if (scsicmd->cmnd[2] == 0x83) {
+				/* vpd page 0x83 - Device Identification Page */
+				char *sno = (char *)&inq_data;
+				sno[3] = setinqserial(dev, &sno[4],
+						      scmd_id(scsicmd));
+				if (aac_wwn != 2)
+					return aac_get_container_serial(
+						scsicmd);
+				scsicmd->result = DID_OK << 16 |
+				  COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 			} else {
 				/* vpd page not implemented */
 				scsicmd->result = DID_OK << 16 |
@@ -2468,6 +2588,15 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			mpd.bd.block_length[0] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
 			mpd.bd.block_length[1] = (fsa_dev_ptr[cid].block_size >> 8) &  0xff;
 			mpd.bd.block_length[2] = fsa_dev_ptr[cid].block_size  & 0xff;
+
+			mpd.mpc_buf[0] = scsicmd->cmnd[2];
+			if (scsicmd->cmnd[2] == 0x1C) {
+				mpd.mpc_buf[1] = 0xa;	/* page length */
+				mpd.hd.data_length = 23;	/* Mode data length */
+			} else {
+				mpd.hd.data_length = 15;	/* Mode data length */
+			}
+
 			if (capacity > 0xffffff) {
 				mpd.bd.block_count[0] = 0xff;
 				mpd.bd.block_count[1] = 0xff;
@@ -2486,9 +2615,12 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			mpd.mpc_buf[2] = ((aac_cache & 6) == 2)
 				? 0 : 0x04; /* WCE */
 			mode_buf_length = sizeof(mpd);
-			if (mode_buf_length > scsicmd->cmnd[4])
-				mode_buf_length = scsicmd->cmnd[4];
 		}
+
+		if (mode_buf_length > scsicmd->cmnd[4])
+			mode_buf_length = scsicmd->cmnd[4];
+		else
+			mode_buf_length = sizeof(mpd);
 		scsi_sg_copy_from_buffer(scsicmd, (char *)&mpd, mode_buf_length);
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index c162a65..a37762e 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1015,6 +1015,7 @@ struct aac_supplement_adapter_info
 #define AAC_OPTION_POWER_MANAGEMENT	cpu_to_le32(0x00000004)
 #define AAC_OPTION_DOORBELL_RESET	cpu_to_le32(0x00004000)
 #define AAC_OPTION_VARIABLE_BLOCK_SIZE	cpu_to_le32(0x00040000) /* 4KB sector size */
+#define AAC_OPTION_SUPPORTED_240_VOLUMES	cpu_to_le32(0x10000000)
 #define AAC_SIS_VERSION_V3	3
 #define AAC_SIS_SLOT_UNKNOWN	0xFF
 
@@ -1212,11 +1213,13 @@ struct aac_dev
 	int			sync_mode;
 	struct fib		*sync_fib;
 	struct list_head	sync_fib_list;
+	u32			doorbell_mask;	/* from GET_ADAPTER_PROP */
 	u32			max_msix;	/* max. MSI-X vectors */
 	u32			vector_cap;	/* MSI-X vector capab.*/
 	int			msi_enabled;	/* MSI/MSI-X enabled */
 	struct msix_entry	msixentry[AAC_MAX_MSIX];
 	struct aac_msix_ctx	aac_msix[AAC_MAX_MSIX]; /* context */
+	u8			adapter_shutdown;
 };
 
 #define aac_adapter_interrupt(dev) \
@@ -1749,6 +1752,7 @@ struct aac_get_container_count_resp {
 	__le32		MaxContainers;
 	__le32		ContainerSwitchEntries;
 	__le32		MaxPartitions;
+	__le32		MaxSimpleVolumes;
 };
 
 
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 29c35c8..c3e13ae 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -53,7 +53,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
 {
 	unsigned char *base;
 	unsigned long size, align;
-	const unsigned long fibsize = 4096;
+	const unsigned long fibsize = dev->max_fib_size;
 	const unsigned long printfbufsiz = 256;
 	unsigned long host_rrq_size = 0;
 	struct aac_init *init;
@@ -230,6 +230,7 @@ int aac_send_shutdown(struct aac_dev * dev)
 	/* FIB should be freed only after getting the response from the F/W */
 	if (status != -ERESTARTSYS)
 		aac_fib_free(fibctx);
+	dev->adapter_shutdown = 1;
 	if ((dev->pdev->device == PMC_DEVICE_S7 ||
 	     dev->pdev->device == PMC_DEVICE_S8 ||
 	     dev->pdev->device == PMC_DEVICE_S9) &&
@@ -357,8 +358,9 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	dev->raw_io_interface = dev->raw_io_64 = 0;
 
 	if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
-		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
+		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, status+3, NULL)) &&
 	 		(status[0] == 0x00000001)) {
+		dev->doorbell_mask = status[3];
 		if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64))
 			dev->raw_io_64 = 1;
 		dev->sync_mode = aac_sync_mode;
@@ -397,6 +399,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	}
 	dev->max_msix = 0;
 	dev->msi_enabled = 0;
+	dev->adapter_shutdown = 0;
 	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
 	  0, 0, 0, 0, 0, 0,
 	  status+0, status+1, status+2, status+3, status+4))
@@ -508,6 +511,7 @@ static void aac_define_int_mode(struct aac_dev *dev)
 
 	int i, msi_count;
 
+	msi_count = i = 0;
 	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
 	if (dev->max_msix == 0 ||
 	    dev->pdev->device == PMC_DEVICE_S6 ||
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 83c5d3f..2bed445 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -208,14 +208,11 @@ struct fib *aac_fib_alloc(struct aac_dev *dev)
 
 void aac_fib_free(struct fib *fibptr)
 {
-	unsigned long flags, flagsv;
+	unsigned long flags;
 
-	spin_lock_irqsave(&fibptr->event_lock, flagsv);
 	if (fibptr->done == 2) {
-		spin_unlock_irqrestore(&fibptr->event_lock, flagsv);
 		return;
 	}
-	spin_unlock_irqrestore(&fibptr->event_lock, flagsv);
 
 	spin_lock_irqsave(&fibptr->dev->fib_lock, flags);
 	if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT))
@@ -775,7 +772,6 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
 
 int aac_fib_complete(struct fib *fibptr)
 {
-	unsigned long flags;
 	struct hw_fib * hw_fib = fibptr->hw_fib_va;
 
 	/*
@@ -798,12 +794,6 @@ int aac_fib_complete(struct fib *fibptr)
 	 *	command is complete that we had sent to the adapter and this
 	 *	cdb could be reused.
 	 */
-	spin_lock_irqsave(&fibptr->event_lock, flags);
-	if (fibptr->done == 2) {
-		spin_unlock_irqrestore(&fibptr->event_lock, flags);
-		return 0;
-	}
-	spin_unlock_irqrestore(&fibptr->event_lock, flags);
 
 	if((hw_fib->header.XferState & cpu_to_le32(SentFromHost)) &&
 		(hw_fib->header.XferState & cpu_to_le32(AdapterProcessed)))
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 7813a9b..4c5ba9e 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -56,7 +56,7 @@
 
 #include "aacraid.h"
 
-#define AAC_DRIVER_VERSION		"1.2-0"
+#define AAC_DRIVER_VERSION		"1.2-1"
 #ifndef AAC_DRIVER_BRANCH
 #define AAC_DRIVER_BRANCH		""
 #endif
@@ -65,7 +65,7 @@
 #ifdef AAC_DRIVER_BUILD
 #define _str(x) #x
 #define str(x) _str(x)
-#define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
+#define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION "." str(AAC_DRIVER_BUILD) "" AAC_DRIVER_BRANCH
 #else
 #define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION AAC_DRIVER_BRANCH
 #endif
@@ -253,19 +253,7 @@ static struct aac_driver_ident aac_drivers[] = {
 
 static int aac_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 {
-	struct Scsi_Host *host = cmd->device->host;
-	struct aac_dev *dev = (struct aac_dev *)host->hostdata;
-	u32 count = 0;
 	cmd->scsi_done = done;
-	for (; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
-		struct fib * fib = &dev->fibs[count];
-		struct scsi_cmnd * command;
-		if (fib->hw_fib_va->header.XferState &&
-		    ((command = fib->callback_data)) &&
-		    (command == cmd) &&
-		    (cmd->SCp.phase == AAC_OWNER_FIRMWARE))
-			return 0; /* Already owned by Adapter */
-	}
 	cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
 	return (aac_scsi_cmd(cmd) ? FAILED : 0);
 }
@@ -713,7 +701,9 @@ static long aac_cfg_ioctl(struct file *file,
 		unsigned int cmd, unsigned long arg)
 {
 	int ret;
-	if (!capable(CAP_SYS_RAWIO))
+	struct aac_dev *aac;
+	aac = (struct aac_dev *)file->private_data;
+	if (!capable(CAP_SYS_RAWIO) || aac->adapter_shutdown)
 		return -EPERM;
 	mutex_lock(&aac_mutex);
 	ret = aac_do_ioctl(file->private_data, cmd, (void __user *)arg);
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index c010248..82ff025 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -200,6 +200,7 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 	u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
 {
 	unsigned long start;
+	unsigned long delay;
 	int ok;
 
 	/*
@@ -240,10 +241,15 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 		ok = 0;
 		start = jiffies;
 
-		/*
-		 *	Wait up to 5 minutes
-		 */
-		while (time_before(jiffies, start+300*HZ)) {
+		if (command == IOP_RESET_ALWAYS) {
+			/* Wait up to 10 sec */
+			delay = 10*HZ;
+		} else {
+			/* Wait up to 5 minutes */
+			delay = 300*HZ;
+		}
+		while (time_before(jiffies, start+delay)) {
+
 			udelay(5);	/* Delay 5 microseconds to let Mon960 get info. */
 			/*
 			 *	Mon960 will set doorbell0 bit when it has completed the command.
@@ -562,10 +568,16 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 		if (bled)
 			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 				dev->name, dev->id, bled);
+		dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 		bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
 			0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
-			if (bled || (var != 0x00000001))
+			if ((bled || (var != 0x00000001)) && !dev->doorbell_mask)
 				return -EINVAL;
+			else if (dev->doorbell_mask) {
+				reset_mask = dev->doorbell_mask;
+				bled = 0;
+				var = 0x00000001;
+			}
 
 		if ((dev->pdev->device == PMC_DEVICE_S7 ||
 		    dev->pdev->device == PMC_DEVICE_S8 ||
@@ -575,10 +587,13 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 			msleep(5000); /* Delay 5 seconds */
 		}
 
-		if (dev->supplement_adapter_info.SupportedOptions2 &
-			AAC_OPTION_DOORBELL_RESET) {
+		if (!bled && (dev->supplement_adapter_info.SupportedOptions2 &
+			AAC_OPTION_DOORBELL_RESET)) {
 			src_writel(dev, MUnit.IDR, reset_mask);
 			ssleep(45);
+		} else {
+			src_writel(dev, MUnit.IDR, 0x100);
+			ssleep(45);
 		}
 	}
 
@@ -600,7 +615,6 @@ int aac_src_select_comm(struct aac_dev *dev, int comm)
 {
 	switch (comm) {
 	case AAC_COMM_MESSAGE:
-		dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 		dev->a_ops.adapter_intr = aac_src_intr_message;
 		dev->a_ops.adapter_deliver = aac_src_deliver_message;
 		break;
@@ -698,6 +712,7 @@ int aac_src_init(struct aac_dev *dev)
 	 */
 	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
 	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
+	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 	dev->a_ops.adapter_notify = aac_src_notify_adapter;
 	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 	dev->a_ops.adapter_check_health = aac_src_check_health;
@@ -735,6 +750,7 @@ int aac_src_init(struct aac_dev *dev)
 	dev->dbg_base = pci_resource_start(dev->pdev, 2);
 	dev->dbg_base_mapped = dev->regs.src.bar1;
 	dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
+	dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 
 	aac_adapter_enable_int(dev);
 
@@ -861,6 +877,7 @@ int aac_srcv_init(struct aac_dev *dev)
 	 */
 	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
 	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
+	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 	dev->a_ops.adapter_notify = aac_src_notify_adapter;
 	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 	dev->a_ops.adapter_check_health = aac_src_check_health;
@@ -913,6 +930,7 @@ int aac_srcv_init(struct aac_dev *dev)
 	dev->dbg_base = dev->base_start;
 	dev->dbg_base_mapped = dev->base;
 	dev->dbg_size = dev->base_size;
+	dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 
 	aac_adapter_enable_int(dev);
 
-- 
1.7.7.3

RE: [PATCH 5/7] aacraid: vpd page code 0x83 support

[Achim Leubner]

Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>


-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 4, 2015 9:39 AM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 5/7] aacraid: vpd page code 0x83 support

Add vpd page code 0x83 support

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aachba.c   |  154 ++++++++++++++++++++++++++++++++++++---
 drivers/scsi/aacraid/aacraid.h  |    4 +
 drivers/scsi/aacraid/comminit.c |    8 ++-
 drivers/scsi/aacraid/commsup.c  |   12 +---
 drivers/scsi/aacraid/linit.c    |   20 +----
 drivers/scsi/aacraid/src.c      |   34 +++++++--
 6 files changed, 185 insertions(+), 47 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index eb524e6..3e4e0c8 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -163,6 +163,45 @@ struct inquiry_data {
 	u8 inqd_prl[4];	/* Product Revision Level */
 };
 
+/* Added for VPD 0x83 */
+typedef struct {
+	u8 CodeSet:4;	/* VPD_CODE_SET */
+	u8 Reserved:4;
+	u8 IdentifierType:4;	/* VPD_IDENTIFIER_TYPE */
+	u8 Reserved2:4;
+	u8 Reserved3;
+	u8 IdentifierLength;
+	u8 VendId[8];
+	u8 ProductId[16];
+	u8 SerialNumber[8];	/* SN in ASCII */
+} TVPD_ID_Descriptor_Type_1;
+
+typedef struct {
+	u8 CodeSet:4;	/* VPD_CODE_SET */
+	u8 Reserved:4;
+	u8 IdentifierType:4;	/* VPD_IDENTIFIER_TYPE */
+	u8 Reserved2:4;
+	u8 Reserved3;
+	u8 IdentifierLength;
+	struct TEU64Id {
+		u32 Serial;
+		 /* The serial number supposed to be 40 bits,
+		  * bit we only support 32, so make the last byte zero. */
+		u8 Reserved;
+		u8 VendId[3];
+	} EU64Id;
+} TVPD_ID_Descriptor_Type_2;
+
+typedef struct {
+	u8 DeviceType:5;
+	u8 DeviceTypeQualifier:3;
+	u8 PageCode;
+	u8 Reserved;
+	u8 PageLength;
+	TVPD_ID_Descriptor_Type_1 IdDescriptorType1;
+	TVPD_ID_Descriptor_Type_2 IdDescriptorType2; } TVPD_Page83;
+
 /*
  *              M O D U L E   G L O B A L S
  */
@@ -420,6 +459,9 @@ int aac_get_containers(struct aac_dev *dev)
 	if (status >= 0) {
 		dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
 		maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
+		if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
+		    AAC_OPTION_SUPPORTED_240_VOLUMES)
+			maximum_num_containers = le32_to_cpu(dresp->MaxSimpleVolumes);
 		aac_fib_complete(fibptr);
 	}
 	/* FIB should be freed only after getting the response from the F/W */ @@ -889,14 +931,81 @@ static void get_container_serial_callback(void *context, struct fib * fibptr)
 	get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
 	/* Failure is irrelevant, using default value instead */
 	if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
-		char sp[13];
-		/* EVPD bit set */
-		sp[0] = INQD_PDT_DA;
-		sp[1] = scsicmd->cmnd[2];
-		sp[2] = 0;
-		sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
-		  le32_to_cpu(get_serial_reply->uid));
-		scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
+		/*Check to see if it's for VPD 0x83 or 0x80 */
+		if (scsicmd->cmnd[2] == 0x83) {
+			/* vpd page 0x83 - Device Identification Page */
+			int i;
+			TVPD_Page83 VPDPage83Data;
+
+			memset(((u8 *)&VPDPage83Data), 0,
+			       sizeof(VPDPage83Data));
+
+			/* DIRECT_ACCESS_DEVIC */
+			VPDPage83Data.DeviceType = 0;
+			/* DEVICE_CONNECTED */
+			VPDPage83Data.DeviceTypeQualifier = 0;
+			/* VPD_DEVICE_IDENTIFIERS */
+			VPDPage83Data.PageCode = 0x83;
+			VPDPage83Data.Reserved = 0;
+			VPDPage83Data.PageLength = sizeof(VPDPage83Data.IdDescriptorType1) +
+				sizeof(VPDPage83Data.IdDescriptorType2);
+
+			/* T10 Vendor Identifier Field Format */
+			/* VpdCodeSetAscii */
+			VPDPage83Data.IdDescriptorType1.CodeSet = 2;
+			/* VpdIdentifierTypeVendorId */
+			VPDPage83Data.IdDescriptorType1.IdentifierType = 1;
+			VPDPage83Data.IdDescriptorType1.IdentifierLength = 
+sizeof(VPDPage83Data.IdDescriptorType1) - 4;
+
+			/* "ADAPTEC " for adaptec */
+			memcpy(VPDPage83Data.IdDescriptorType1.VendId, "ADAPTEC ",
+				sizeof(VPDPage83Data.IdDescriptorType1.VendId));
+			memcpy(VPDPage83Data.IdDescriptorType1.ProductId, "ARRAY           ",
+				sizeof(VPDPage83Data.IdDescriptorType1.ProductId));
+
+			/* Convert to ascii based serial number.
+			 * The LSB is the the end.
+			 */
+			for (i = 0; i < 8; i++) {
+				u8 temp = (u8)((get_serial_reply->uid >> ((7 - i) * 4)) & 0xF);
+				if (temp  > 0x9) {
+					VPDPage83Data.IdDescriptorType1.SerialNumber[i] = 'A' + (temp - 0xA);
+				} else {
+					VPDPage83Data.IdDescriptorType1.SerialNumber[i] = '0' + temp;
+				}
+			}
+
+			/* EUI-64 Vendor Identifier Field Format,
+			 * 24 bits for VendId and 40 bits for SN.
+			 */
+			/* VpdCodeSetBinary */
+			VPDPage83Data.IdDescriptorType2.CodeSet = 1;
+			/* VpdIdentifierTypeEUI64 */
+			VPDPage83Data.IdDescriptorType2.IdentifierType = 2;
+			VPDPage83Data.IdDescriptorType2.IdentifierLength = 
+sizeof(VPDPage83Data.IdDescriptorType2) - 4;
+
+			/* 0x0000055 for IBM, 0x0000D0 for Adaptec */
+			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[0] = 0xD0;
+			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[1] = 0;
+			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[2] = 0;
+
+			VPDPage83Data.IdDescriptorType2.EU64Id.Serial = get_serial_reply->uid;
+			VPDPage83Data.IdDescriptorType2.EU64Id.Reserved = 0;
+
+			/* Move the inquiry data to the response buffer. */
+			scsi_sg_copy_from_buffer(scsicmd, &VPDPage83Data,
+						 sizeof(VPDPage83Data));
+		} else {
+			/* It must be for VPD 0x80 */
+			char sp[13];
+			/* EVPD bit set */
+			sp[0] = INQD_PDT_DA;
+			sp[1] = scsicmd->cmnd[2];
+			sp[2] = 0;
+			sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
+				le32_to_cpu(get_serial_reply->uid));
+			scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
+		}
 	}
 
 	scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; @@ -2302,9 +2411,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			  INQD_PDT_PROC : INQD_PDT_DA;
 			if (scsicmd->cmnd[2] == 0) {
 				/* supported vital product data pages */
-				arr[3] = 2;
+				arr[3] = 3;
 				arr[4] = 0x0;
 				arr[5] = 0x80;
+				arr[6] = 0x83;
 				arr[1] = scsicmd->cmnd[2];
 				scsi_sg_copy_from_buffer(scsicmd, &inq_data,
 							 sizeof(inq_data));
@@ -2323,6 +2433,16 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 				/* SLES 10 SP1 special */
 				scsicmd->result = DID_OK << 16 |
 				  COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
+			} else if (scsicmd->cmnd[2] == 0x83) {
+				/* vpd page 0x83 - Device Identification Page */
+				char *sno = (char *)&inq_data;
+				sno[3] = setinqserial(dev, &sno[4],
+						      scmd_id(scsicmd));
+				if (aac_wwn != 2)
+					return aac_get_container_serial(
+						scsicmd);
+				scsicmd->result = DID_OK << 16 |
+				  COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 			} else {
 				/* vpd page not implemented */
 				scsicmd->result = DID_OK << 16 |
@@ -2468,6 +2588,15 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			mpd.bd.block_length[0] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
 			mpd.bd.block_length[1] = (fsa_dev_ptr[cid].block_size >> 8) &  0xff;
 			mpd.bd.block_length[2] = fsa_dev_ptr[cid].block_size  & 0xff;
+
+			mpd.mpc_buf[0] = scsicmd->cmnd[2];
+			if (scsicmd->cmnd[2] == 0x1C) {
+				mpd.mpc_buf[1] = 0xa;	/* page length */
+				mpd.hd.data_length = 23;	/* Mode data length */
+			} else {
+				mpd.hd.data_length = 15;	/* Mode data length */
+			}
+
 			if (capacity > 0xffffff) {
 				mpd.bd.block_count[0] = 0xff;
 				mpd.bd.block_count[1] = 0xff;
@@ -2486,9 +2615,12 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			mpd.mpc_buf[2] = ((aac_cache & 6) == 2)
 				? 0 : 0x04; /* WCE */
 			mode_buf_length = sizeof(mpd);
-			if (mode_buf_length > scsicmd->cmnd[4])
-				mode_buf_length = scsicmd->cmnd[4];
 		}
+
+		if (mode_buf_length > scsicmd->cmnd[4])
+			mode_buf_length = scsicmd->cmnd[4];
+		else
+			mode_buf_length = sizeof(mpd);
 		scsi_sg_copy_from_buffer(scsicmd, (char *)&mpd, mode_buf_length);
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index c162a65..a37762e 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1015,6 +1015,7 @@ struct aac_supplement_adapter_info
 #define AAC_OPTION_POWER_MANAGEMENT	cpu_to_le32(0x00000004)
 #define AAC_OPTION_DOORBELL_RESET	cpu_to_le32(0x00004000)
 #define AAC_OPTION_VARIABLE_BLOCK_SIZE	cpu_to_le32(0x00040000) /* 4KB sector size */
+#define AAC_OPTION_SUPPORTED_240_VOLUMES	cpu_to_le32(0x10000000)
 #define AAC_SIS_VERSION_V3	3
 #define AAC_SIS_SLOT_UNKNOWN	0xFF
 
@@ -1212,11 +1213,13 @@ struct aac_dev
 	int			sync_mode;
 	struct fib		*sync_fib;
 	struct list_head	sync_fib_list;
+	u32			doorbell_mask;	/* from GET_ADAPTER_PROP */
 	u32			max_msix;	/* max. MSI-X vectors */
 	u32			vector_cap;	/* MSI-X vector capab.*/
 	int			msi_enabled;	/* MSI/MSI-X enabled */
 	struct msix_entry	msixentry[AAC_MAX_MSIX];
 	struct aac_msix_ctx	aac_msix[AAC_MAX_MSIX]; /* context */
+	u8			adapter_shutdown;
 };
 
 #define aac_adapter_interrupt(dev) \
@@ -1749,6 +1752,7 @@ struct aac_get_container_count_resp {
 	__le32		MaxContainers;
 	__le32		ContainerSwitchEntries;
 	__le32		MaxPartitions;
+	__le32		MaxSimpleVolumes;
 };
 
 
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 29c35c8..c3e13ae 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -53,7 +53,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co  {
 	unsigned char *base;
 	unsigned long size, align;
-	const unsigned long fibsize = 4096;
+	const unsigned long fibsize = dev->max_fib_size;
 	const unsigned long printfbufsiz = 256;
 	unsigned long host_rrq_size = 0;
 	struct aac_init *init;
@@ -230,6 +230,7 @@ int aac_send_shutdown(struct aac_dev * dev)
 	/* FIB should be freed only after getting the response from the F/W */
 	if (status != -ERESTARTSYS)
 		aac_fib_free(fibctx);
+	dev->adapter_shutdown = 1;
 	if ((dev->pdev->device == PMC_DEVICE_S7 ||
 	     dev->pdev->device == PMC_DEVICE_S8 ||
 	     dev->pdev->device == PMC_DEVICE_S9) && @@ -357,8 +358,9 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	dev->raw_io_interface = dev->raw_io_64 = 0;
 
 	if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
-		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
+		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, status+3, NULL)) &&
 	 		(status[0] == 0x00000001)) {
+		dev->doorbell_mask = status[3];
 		if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64))
 			dev->raw_io_64 = 1;
 		dev->sync_mode = aac_sync_mode;
@@ -397,6 +399,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	}
 	dev->max_msix = 0;
 	dev->msi_enabled = 0;
+	dev->adapter_shutdown = 0;
 	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
 	  0, 0, 0, 0, 0, 0,
 	  status+0, status+1, status+2, status+3, status+4)) @@ -508,6 +511,7 @@ static void aac_define_int_mode(struct aac_dev *dev)
 
 	int i, msi_count;
 
+	msi_count = i = 0;
 	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
 	if (dev->max_msix == 0 ||
 	    dev->pdev->device == PMC_DEVICE_S6 || diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 83c5d3f..2bed445 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -208,14 +208,11 @@ struct fib *aac_fib_alloc(struct aac_dev *dev)
 
 void aac_fib_free(struct fib *fibptr)
 {
-	unsigned long flags, flagsv;
+	unsigned long flags;
 
-	spin_lock_irqsave(&fibptr->event_lock, flagsv);
 	if (fibptr->done == 2) {
-		spin_unlock_irqrestore(&fibptr->event_lock, flagsv);
 		return;
 	}
-	spin_unlock_irqrestore(&fibptr->event_lock, flagsv);
 
 	spin_lock_irqsave(&fibptr->dev->fib_lock, flags);
 	if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) @@ -775,7 +772,6 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
 
 int aac_fib_complete(struct fib *fibptr)  {
-	unsigned long flags;
 	struct hw_fib * hw_fib = fibptr->hw_fib_va;
 
 	/*
@@ -798,12 +794,6 @@ int aac_fib_complete(struct fib *fibptr)
 	 *	command is complete that we had sent to the adapter and this
 	 *	cdb could be reused.
 	 */
-	spin_lock_irqsave(&fibptr->event_lock, flags);
-	if (fibptr->done == 2) {
-		spin_unlock_irqrestore(&fibptr->event_lock, flags);
-		return 0;
-	}
-	spin_unlock_irqrestore(&fibptr->event_lock, flags);
 
 	if((hw_fib->header.XferState & cpu_to_le32(SentFromHost)) &&
 		(hw_fib->header.XferState & cpu_to_le32(AdapterProcessed))) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 7813a9b..4c5ba9e 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -56,7 +56,7 @@
 
 #include "aacraid.h"
 
-#define AAC_DRIVER_VERSION		"1.2-0"
+#define AAC_DRIVER_VERSION		"1.2-1"
 #ifndef AAC_DRIVER_BRANCH
 #define AAC_DRIVER_BRANCH		""
 #endif
@@ -65,7 +65,7 @@
 #ifdef AAC_DRIVER_BUILD
 #define _str(x) #x
 #define str(x) _str(x)
-#define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
+#define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION "." str(AAC_DRIVER_BUILD) "" AAC_DRIVER_BRANCH
 #else
 #define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION AAC_DRIVER_BRANCH
 #endif
@@ -253,19 +253,7 @@ static struct aac_driver_ident aac_drivers[] = {
 
 static int aac_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))  {
-	struct Scsi_Host *host = cmd->device->host;
-	struct aac_dev *dev = (struct aac_dev *)host->hostdata;
-	u32 count = 0;
 	cmd->scsi_done = done;
-	for (; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
-		struct fib * fib = &dev->fibs[count];
-		struct scsi_cmnd * command;
-		if (fib->hw_fib_va->header.XferState &&
-		    ((command = fib->callback_data)) &&
-		    (command == cmd) &&
-		    (cmd->SCp.phase == AAC_OWNER_FIRMWARE))
-			return 0; /* Already owned by Adapter */
-	}
 	cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
 	return (aac_scsi_cmd(cmd) ? FAILED : 0);  } @@ -713,7 +701,9 @@ static long aac_cfg_ioctl(struct file *file,
 		unsigned int cmd, unsigned long arg)
 {
 	int ret;
-	if (!capable(CAP_SYS_RAWIO))
+	struct aac_dev *aac;
+	aac = (struct aac_dev *)file->private_data;
+	if (!capable(CAP_SYS_RAWIO) || aac->adapter_shutdown)
 		return -EPERM;
 	mutex_lock(&aac_mutex);
 	ret = aac_do_ioctl(file->private_data, cmd, (void __user *)arg); diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c index c010248..82ff025 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -200,6 +200,7 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 	u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)  {
 	unsigned long start;
+	unsigned long delay;
 	int ok;
 
 	/*
@@ -240,10 +241,15 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 		ok = 0;
 		start = jiffies;
 
-		/*
-		 *	Wait up to 5 minutes
-		 */
-		while (time_before(jiffies, start+300*HZ)) {
+		if (command == IOP_RESET_ALWAYS) {
+			/* Wait up to 10 sec */
+			delay = 10*HZ;
+		} else {
+			/* Wait up to 5 minutes */
+			delay = 300*HZ;
+		}
+		while (time_before(jiffies, start+delay)) {
+
 			udelay(5);	/* Delay 5 microseconds to let Mon960 get info. */
 			/*
 			 *	Mon960 will set doorbell0 bit when it has completed the command.
@@ -562,10 +568,16 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 		if (bled)
 			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 				dev->name, dev->id, bled);
+		dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 		bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
 			0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
-			if (bled || (var != 0x00000001))
+			if ((bled || (var != 0x00000001)) && !dev->doorbell_mask)
 				return -EINVAL;
+			else if (dev->doorbell_mask) {
+				reset_mask = dev->doorbell_mask;
+				bled = 0;
+				var = 0x00000001;
+			}
 
 		if ((dev->pdev->device == PMC_DEVICE_S7 ||
 		    dev->pdev->device == PMC_DEVICE_S8 || @@ -575,10 +587,13 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 			msleep(5000); /* Delay 5 seconds */
 		}
 
-		if (dev->supplement_adapter_info.SupportedOptions2 &
-			AAC_OPTION_DOORBELL_RESET) {
+		if (!bled && (dev->supplement_adapter_info.SupportedOptions2 &
+			AAC_OPTION_DOORBELL_RESET)) {
 			src_writel(dev, MUnit.IDR, reset_mask);
 			ssleep(45);
+		} else {
+			src_writel(dev, MUnit.IDR, 0x100);
+			ssleep(45);
 		}
 	}
 
@@ -600,7 +615,6 @@ int aac_src_select_comm(struct aac_dev *dev, int comm)  {
 	switch (comm) {
 	case AAC_COMM_MESSAGE:
-		dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 		dev->a_ops.adapter_intr = aac_src_intr_message;
 		dev->a_ops.adapter_deliver = aac_src_deliver_message;
 		break;
@@ -698,6 +712,7 @@ int aac_src_init(struct aac_dev *dev)
 	 */
 	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
 	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
+	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 	dev->a_ops.adapter_notify = aac_src_notify_adapter;
 	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 	dev->a_ops.adapter_check_health = aac_src_check_health; @@ -735,6 +750,7 @@ int aac_src_init(struct aac_dev *dev)
 	dev->dbg_base = pci_resource_start(dev->pdev, 2);
 	dev->dbg_base_mapped = dev->regs.src.bar1;
 	dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
+	dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 
 	aac_adapter_enable_int(dev);
 
@@ -861,6 +877,7 @@ int aac_srcv_init(struct aac_dev *dev)
 	 */
 	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
 	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
+	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 	dev->a_ops.adapter_notify = aac_src_notify_adapter;
 	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 	dev->a_ops.adapter_check_health = aac_src_check_health; @@ -913,6 +930,7 @@ int aac_srcv_init(struct aac_dev *dev)
 	dev->dbg_base = dev->base_start;
 	dev->dbg_base_mapped = dev->base;
 	dev->dbg_size = dev->base_size;
+	dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 
 	aac_adapter_enable_int(dev);
 
--
1.7.7.3

Re: [PATCH 5/7] aacraid: vpd page code 0x83 support

[Hannes Reinecke]

On 03/17/2015 04:27 PM, Achim Leubner wrote:
> Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>
> 
> 
> -----Original Message-----
> From: Mahesh Rajashekhara 
> Sent: Wednesday, March 4, 2015 9:39 AM
> To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
> Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
> Subject: [PATCH 5/7] aacraid: vpd page code 0x83 support
> 
> Add vpd page code 0x83 support
> 
> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
> ---
>  drivers/scsi/aacraid/aachba.c   |  154 ++++++++++++++++++++++++++++++++++++---
>  drivers/scsi/aacraid/aacraid.h  |    4 +
>  drivers/scsi/aacraid/comminit.c |    8 ++-
>  drivers/scsi/aacraid/commsup.c  |   12 +---
>  drivers/scsi/aacraid/linit.c    |   20 +----
>  drivers/scsi/aacraid/src.c      |   34 +++++++--
>  6 files changed, 185 insertions(+), 47 deletions(-)
> 
> diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index eb524e6..3e4e0c8 100644
> --- a/drivers/scsi/aacraid/aachba.c
> +++ b/drivers/scsi/aacraid/aachba.c
> @@ -163,6 +163,45 @@ struct inquiry_data {
>  	u8 inqd_prl[4];	/* Product Revision Level */
>  };
>  
> +/* Added for VPD 0x83 */
> +typedef struct {
> +	u8 CodeSet:4;	/* VPD_CODE_SET */
> +	u8 Reserved:4;
> +	u8 IdentifierType:4;	/* VPD_IDENTIFIER_TYPE */
> +	u8 Reserved2:4;
> +	u8 Reserved3;
> +	u8 IdentifierLength;
> +	u8 VendId[8];
> +	u8 ProductId[16];
> +	u8 SerialNumber[8];	/* SN in ASCII */
> +} TVPD_ID_Descriptor_Type_1;
> +
> +typedef struct {
> +	u8 CodeSet:4;	/* VPD_CODE_SET */
> +	u8 Reserved:4;
> +	u8 IdentifierType:4;	/* VPD_IDENTIFIER_TYPE */
> +	u8 Reserved2:4;
> +	u8 Reserved3;
> +	u8 IdentifierLength;
> +	struct TEU64Id {
> +		u32 Serial;
> +		 /* The serial number supposed to be 40 bits,
> +		  * bit we only support 32, so make the last byte zero. */
> +		u8 Reserved;
> +		u8 VendId[3];
> +	} EU64Id;
> +} TVPD_ID_Descriptor_Type_2;
> +
> +typedef struct {
> +	u8 DeviceType:5;
> +	u8 DeviceTypeQualifier:3;
> +	u8 PageCode;
> +	u8 Reserved;
> +	u8 PageLength;
> +	TVPD_ID_Descriptor_Type_1 IdDescriptorType1;
> +	TVPD_ID_Descriptor_Type_2 IdDescriptorType2; } TVPD_Page83;
> +
>  /*
>   *              M O D U L E   G L O B A L S
>   */
> @@ -420,6 +459,9 @@ int aac_get_containers(struct aac_dev *dev)
>  	if (status >= 0) {
>  		dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
>  		maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
> +		if (fibptr->dev->supplement_adapter_info.SupportedOptions2 &
> +		    AAC_OPTION_SUPPORTED_240_VOLUMES)
> +			maximum_num_containers = le32_to_cpu(dresp->MaxSimpleVolumes);
>  		aac_fib_complete(fibptr);
>  	}
>  	/* FIB should be freed only after getting the response from the F/W */ @@ -889,14 +931,81 @@ static void get_container_serial_callback(void *context, struct fib * fibptr)

Garbled patch?

>  	get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
>  	/* Failure is irrelevant, using default value instead */
>  	if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
> -		char sp[13];
> -		/* EVPD bit set */
> -		sp[0] = INQD_PDT_DA;
> -		sp[1] = scsicmd->cmnd[2];
> -		sp[2] = 0;
> -		sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
> -		  le32_to_cpu(get_serial_reply->uid));
> -		scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
> +		/*Check to see if it's for VPD 0x83 or 0x80 */
> +		if (scsicmd->cmnd[2] == 0x83) {
> +			/* vpd page 0x83 - Device Identification Page */
> +			int i;
> +			TVPD_Page83 VPDPage83Data;
> +
> +			memset(((u8 *)&VPDPage83Data), 0,
> +			       sizeof(VPDPage83Data));
> +
> +			/* DIRECT_ACCESS_DEVIC */
> +			VPDPage83Data.DeviceType = 0;
> +			/* DEVICE_CONNECTED */
> +			VPDPage83Data.DeviceTypeQualifier = 0;
> +			/* VPD_DEVICE_IDENTIFIERS */
> +			VPDPage83Data.PageCode = 0x83;
> +			VPDPage83Data.Reserved = 0;
> +			VPDPage83Data.PageLength = sizeof(VPDPage83Data.IdDescriptorType1) +
> +				sizeof(VPDPage83Data.IdDescriptorType2);
> +
> +			/* T10 Vendor Identifier Field Format */
> +			/* VpdCodeSetAscii */
> +			VPDPage83Data.IdDescriptorType1.CodeSet = 2;
> +			/* VpdIdentifierTypeVendorId */
> +			VPDPage83Data.IdDescriptorType1.IdentifierType = 1;
> +			VPDPage83Data.IdDescriptorType1.IdentifierLength = 
> +sizeof(VPDPage83Data.IdDescriptorType1) - 4;
> +
Wrong indentation.

> +			/* "ADAPTEC " for adaptec */
> +			memcpy(VPDPage83Data.IdDescriptorType1.VendId, "ADAPTEC ",
> +				sizeof(VPDPage83Data.IdDescriptorType1.VendId));
> +			memcpy(VPDPage83Data.IdDescriptorType1.ProductId, "ARRAY           ",
> +				sizeof(VPDPage83Data.IdDescriptorType1.ProductId));
> +
> +			/* Convert to ascii based serial number.
> +			 * The LSB is the the end.
> +			 */
> +			for (i = 0; i < 8; i++) {
> +				u8 temp = (u8)((get_serial_reply->uid >> ((7 - i) * 4)) & 0xF);
> +				if (temp  > 0x9) {
> +					VPDPage83Data.IdDescriptorType1.SerialNumber[i] = 'A' + (temp - 0xA);
> +				} else {
> +					VPDPage83Data.IdDescriptorType1.SerialNumber[i] = '0' + temp;
> +				}
> +			}
> +
> +			/* EUI-64 Vendor Identifier Field Format,
> +			 * 24 bits for VendId and 40 bits for SN.
> +			 */
> +			/* VpdCodeSetBinary */
> +			VPDPage83Data.IdDescriptorType2.CodeSet = 1;
> +			/* VpdIdentifierTypeEUI64 */
> +			VPDPage83Data.IdDescriptorType2.IdentifierType = 2;
> +			VPDPage83Data.IdDescriptorType2.IdentifierLength = 
> +sizeof(VPDPage83Data.IdDescriptorType2) - 4;
> +
Same here.
> +			/* 0x0000055 for IBM, 0x0000D0 for Adaptec */

Do you ever use the IBM Vendor ID?
If not, why do you mention it here?

> +			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[0] = 0xD0;
> +			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[1] = 0;
> +			VPDPage83Data.IdDescriptorType2.EU64Id.VendId[2] = 0;
> +
> +			VPDPage83Data.IdDescriptorType2.EU64Id.Serial = get_serial_reply->uid;
> +			VPDPage83Data.IdDescriptorType2.EU64Id.Reserved = 0;
> +
> +			/* Move the inquiry data to the response buffer. */
> +			scsi_sg_copy_from_buffer(scsicmd, &VPDPage83Data,
> +						 sizeof(VPDPage83Data));
> +		} else {
> +			/* It must be for VPD 0x80 */
> +			char sp[13];
> +			/* EVPD bit set */
> +			sp[0] = INQD_PDT_DA;
> +			sp[1] = scsicmd->cmnd[2];
> +			sp[2] = 0;
> +			sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
> +				le32_to_cpu(get_serial_reply->uid));
> +			scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
> +		}
>  	}
>  
>  	scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; @@ -2302,9 +2411,10 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
>  			  INQD_PDT_PROC : INQD_PDT_DA;
>  			if (scsicmd->cmnd[2] == 0) {
>  				/* supported vital product data pages */
> -				arr[3] = 2;
> +				arr[3] = 3;
>  				arr[4] = 0x0;
>  				arr[5] = 0x80;
> +				arr[6] = 0x83;
>  				arr[1] = scsicmd->cmnd[2];
>  				scsi_sg_copy_from_buffer(scsicmd, &inq_data,
>  							 sizeof(inq_data));
> @@ -2323,6 +2433,16 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
>  				/* SLES 10 SP1 special */
Gods. Are we still in there?
I guess it's time to remove that, at least the comment ...

>  				scsicmd->result = DID_OK << 16 |
>  				  COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
> +			} else if (scsicmd->cmnd[2] == 0x83) {
> +				/* vpd page 0x83 - Device Identification Page */
> +				char *sno = (char *)&inq_data;
> +				sno[3] = setinqserial(dev, &sno[4],
> +						      scmd_id(scsicmd));
> +				if (aac_wwn != 2)
> +					return aac_get_container_serial(
> +						scsicmd);
> +				scsicmd->result = DID_OK << 16 |
> +				  COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
>  			} else {
>  				/* vpd page not implemented */
>  				scsicmd->result = DID_OK << 16 |
> @@ -2468,6 +2588,15 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
>  			mpd.bd.block_length[0] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
>  			mpd.bd.block_length[1] = (fsa_dev_ptr[cid].block_size >> 8) &  0xff;
>  			mpd.bd.block_length[2] = fsa_dev_ptr[cid].block_size  & 0xff;
> +
> +			mpd.mpc_buf[0] = scsicmd->cmnd[2];
> +			if (scsicmd->cmnd[2] == 0x1C) {
> +				mpd.mpc_buf[1] = 0xa;	/* page length */
> +				mpd.hd.data_length = 23;	/* Mode data length */
> +			} else {
> +				mpd.hd.data_length = 15;	/* Mode data length */
> +			}
> +
>  			if (capacity > 0xffffff) {
>  				mpd.bd.block_count[0] = 0xff;
>  				mpd.bd.block_count[1] = 0xff;
> @@ -2486,9 +2615,12 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
>  			mpd.mpc_buf[2] = ((aac_cache & 6) == 2)
>  				? 0 : 0x04; /* WCE */
>  			mode_buf_length = sizeof(mpd);
> -			if (mode_buf_length > scsicmd->cmnd[4])
> -				mode_buf_length = scsicmd->cmnd[4];
>  		}
> +
> +		if (mode_buf_length > scsicmd->cmnd[4])
> +			mode_buf_length = scsicmd->cmnd[4];
> +		else
> +			mode_buf_length = sizeof(mpd);
>  		scsi_sg_copy_from_buffer(scsicmd, (char *)&mpd, mode_buf_length);
>  		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
>  		scsicmd->scsi_done(scsicmd);
> diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index c162a65..a37762e 100644
> --- a/drivers/scsi/aacraid/aacraid.h
> +++ b/drivers/scsi/aacraid/aacraid.h
> @@ -1015,6 +1015,7 @@ struct aac_supplement_adapter_info
>  #define AAC_OPTION_POWER_MANAGEMENT	cpu_to_le32(0x00000004)
>  #define AAC_OPTION_DOORBELL_RESET	cpu_to_le32(0x00004000)
>  #define AAC_OPTION_VARIABLE_BLOCK_SIZE	cpu_to_le32(0x00040000) /* 4KB sector size */
> +#define AAC_OPTION_SUPPORTED_240_VOLUMES	cpu_to_le32(0x10000000)
>  #define AAC_SIS_VERSION_V3	3
>  #define AAC_SIS_SLOT_UNKNOWN	0xFF
>  
> @@ -1212,11 +1213,13 @@ struct aac_dev
>  	int			sync_mode;
>  	struct fib		*sync_fib;
>  	struct list_head	sync_fib_list;
> +	u32			doorbell_mask;	/* from GET_ADAPTER_PROP */
>  	u32			max_msix;	/* max. MSI-X vectors */
>  	u32			vector_cap;	/* MSI-X vector capab.*/
>  	int			msi_enabled;	/* MSI/MSI-X enabled */
>  	struct msix_entry	msixentry[AAC_MAX_MSIX];
>  	struct aac_msix_ctx	aac_msix[AAC_MAX_MSIX]; /* context */
> +	u8			adapter_shutdown;
>  };
>  
>  #define aac_adapter_interrupt(dev) \
> @@ -1749,6 +1752,7 @@ struct aac_get_container_count_resp {
>  	__le32		MaxContainers;
>  	__le32		ContainerSwitchEntries;
>  	__le32		MaxPartitions;
> +	__le32		MaxSimpleVolumes;
>  };
>  
>  
What exactly has this to do with VPD page support?
Please split if off into a separate patch.

> diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 29c35c8..c3e13ae 100644
> --- a/drivers/scsi/aacraid/comminit.c
> +++ b/drivers/scsi/aacraid/comminit.c
> @@ -53,7 +53,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co  {
>  	unsigned char *base;
>  	unsigned long size, align;
> -	const unsigned long fibsize = 4096;
> +	const unsigned long fibsize = dev->max_fib_size;
>  	const unsigned long printfbufsiz = 256;
>  	unsigned long host_rrq_size = 0;
>  	struct aac_init *init;
> @@ -230,6 +230,7 @@ int aac_send_shutdown(struct aac_dev * dev)
>  	/* FIB should be freed only after getting the response from the F/W */
>  	if (status != -ERESTARTSYS)
>  		aac_fib_free(fibctx);
> +	dev->adapter_shutdown = 1;
>  	if ((dev->pdev->device == PMC_DEVICE_S7 ||
>  	     dev->pdev->device == PMC_DEVICE_S8 ||
>  	     dev->pdev->device == PMC_DEVICE_S9) && @@ -357,8 +358,9 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
>  	dev->raw_io_interface = dev->raw_io_64 = 0;
>  
>  	if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
> -		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
> +		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, status+3, NULL)) &&
>  	 		(status[0] == 0x00000001)) {
> +		dev->doorbell_mask = status[3];
>  		if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64))
>  			dev->raw_io_64 = 1;
>  		dev->sync_mode = aac_sync_mode;
> @@ -397,6 +399,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
>  	}
>  	dev->max_msix = 0;
>  	dev->msi_enabled = 0;
> +	dev->adapter_shutdown = 0;
>  	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
>  	  0, 0, 0, 0, 0, 0,
>  	  status+0, status+1, status+2, status+3, status+4)) @@ -508,6 +511,7 @@ static void aac_define_int_mode(struct aac_dev *dev)
>  
>  	int i, msi_count;
>  
> +	msi_count = i = 0;
>  	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
>  	if (dev->max_msix == 0 ||
>  	    dev->pdev->device == PMC_DEVICE_S6 || diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 83c5d3f..2bed445 100644
> --- a/drivers/scsi/aacraid/commsup.c
> +++ b/drivers/scsi/aacraid/commsup.c
> @@ -208,14 +208,11 @@ struct fib *aac_fib_alloc(struct aac_dev *dev)
>  
>  void aac_fib_free(struct fib *fibptr)
>  {
> -	unsigned long flags, flagsv;
> +	unsigned long flags;
>  
> -	spin_lock_irqsave(&fibptr->event_lock, flagsv);
>  	if (fibptr->done == 2) {
> -		spin_unlock_irqrestore(&fibptr->event_lock, flagsv);
>  		return;
>  	}
> -	spin_unlock_irqrestore(&fibptr->event_lock, flagsv);
>  
>  	spin_lock_irqsave(&fibptr->dev->fib_lock, flags);
>  	if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) @@ -775,7 +772,6 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
>  
>  int aac_fib_complete(struct fib *fibptr)  {
> -	unsigned long flags;
>  	struct hw_fib * hw_fib = fibptr->hw_fib_va;
>  
>  	/*
> @@ -798,12 +794,6 @@ int aac_fib_complete(struct fib *fibptr)
>  	 *	command is complete that we had sent to the adapter and this
>  	 *	cdb could be reused.
>  	 */
> -	spin_lock_irqsave(&fibptr->event_lock, flags);
> -	if (fibptr->done == 2) {
> -		spin_unlock_irqrestore(&fibptr->event_lock, flags);
> -		return 0;
> -	}
> -	spin_unlock_irqrestore(&fibptr->event_lock, flags);
>  
>  	if((hw_fib->header.XferState & cpu_to_le32(SentFromHost)) &&
>  		(hw_fib->header.XferState & cpu_to_le32(AdapterProcessed))) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 7813a9b..4c5ba9e 100644
> --- a/drivers/scsi/aacraid/linit.c
> +++ b/drivers/scsi/aacraid/linit.c
> @@ -56,7 +56,7 @@
>  
>  #include "aacraid.h"
>  
> -#define AAC_DRIVER_VERSION		"1.2-0"
> +#define AAC_DRIVER_VERSION		"1.2-1"
>  #ifndef AAC_DRIVER_BRANCH
>  #define AAC_DRIVER_BRANCH		""
>  #endif
> @@ -65,7 +65,7 @@
>  #ifdef AAC_DRIVER_BUILD
>  #define _str(x) #x
>  #define str(x) _str(x)
> -#define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
> +#define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION "." str(AAC_DRIVER_BUILD) "" AAC_DRIVER_BRANCH
>  #else
>  #define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION AAC_DRIVER_BRANCH
>  #endif
> @@ -253,19 +253,7 @@ static struct aac_driver_ident aac_drivers[] = {
>  
>  static int aac_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))  {
> -	struct Scsi_Host *host = cmd->device->host;
> -	struct aac_dev *dev = (struct aac_dev *)host->hostdata;
> -	u32 count = 0;
>  	cmd->scsi_done = done;
> -	for (; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
> -		struct fib * fib = &dev->fibs[count];
> -		struct scsi_cmnd * command;
> -		if (fib->hw_fib_va->header.XferState &&
> -		    ((command = fib->callback_data)) &&
> -		    (command == cmd) &&
> -		    (cmd->SCp.phase == AAC_OWNER_FIRMWARE))
> -			return 0; /* Already owned by Adapter */
> -	}
>  	cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
>  	return (aac_scsi_cmd(cmd) ? FAILED : 0);  } @@ -713,7 +701,9 @@ static long aac_cfg_ioctl(struct file *file,
>  		unsigned int cmd, unsigned long arg)
>  {
>  	int ret;
> -	if (!capable(CAP_SYS_RAWIO))
> +	struct aac_dev *aac;
> +	aac = (struct aac_dev *)file->private_data;
> +	if (!capable(CAP_SYS_RAWIO) || aac->adapter_shutdown)
>  		return -EPERM;
>  	mutex_lock(&aac_mutex);
>  	ret = aac_do_ioctl(file->private_data, cmd, (void __user *)arg); diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c index c010248..82ff025 100644
> --- a/drivers/scsi/aacraid/src.c
> +++ b/drivers/scsi/aacraid/src.c
> @@ -200,6 +200,7 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
>  	u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)  {
>  	unsigned long start;
> +	unsigned long delay;
>  	int ok;
>  
>  	/*
> @@ -240,10 +241,15 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
>  		ok = 0;
>  		start = jiffies;
>  
> -		/*
> -		 *	Wait up to 5 minutes
> -		 */
> -		while (time_before(jiffies, start+300*HZ)) {
> +		if (command == IOP_RESET_ALWAYS) {
> +			/* Wait up to 10 sec */
> +			delay = 10*HZ;
> +		} else {
> +			/* Wait up to 5 minutes */
> +			delay = 300*HZ;
> +		}
> +		while (time_before(jiffies, start+delay)) {
> +
>  			udelay(5);	/* Delay 5 microseconds to let Mon960 get info. */
>  			/*
>  			 *	Mon960 will set doorbell0 bit when it has completed the command.
> @@ -562,10 +568,16 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
>  		if (bled)
>  			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
>  				dev->name, dev->id, bled);
> +		dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
>  		bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
>  			0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
> -			if (bled || (var != 0x00000001))
> +			if ((bled || (var != 0x00000001)) && !dev->doorbell_mask)
>  				return -EINVAL;
> +			else if (dev->doorbell_mask) {
> +				reset_mask = dev->doorbell_mask;
> +				bled = 0;
> +				var = 0x00000001;
> +			}
>  
>  		if ((dev->pdev->device == PMC_DEVICE_S7 ||
>  		    dev->pdev->device == PMC_DEVICE_S8 || @@ -575,10 +587,13 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
>  			msleep(5000); /* Delay 5 seconds */
>  		}
>  
> -		if (dev->supplement_adapter_info.SupportedOptions2 &
> -			AAC_OPTION_DOORBELL_RESET) {
> +		if (!bled && (dev->supplement_adapter_info.SupportedOptions2 &
> +			AAC_OPTION_DOORBELL_RESET)) {
>  			src_writel(dev, MUnit.IDR, reset_mask);
>  			ssleep(45);
> +		} else {
> +			src_writel(dev, MUnit.IDR, 0x100);
> +			ssleep(45);
>  		}
>  	}
>  
> @@ -600,7 +615,6 @@ int aac_src_select_comm(struct aac_dev *dev, int comm)  {
>  	switch (comm) {
>  	case AAC_COMM_MESSAGE:
> -		dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
>  		dev->a_ops.adapter_intr = aac_src_intr_message;
>  		dev->a_ops.adapter_deliver = aac_src_deliver_message;
>  		break;
> @@ -698,6 +712,7 @@ int aac_src_init(struct aac_dev *dev)
>  	 */
>  	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
>  	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
> +	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
>  	dev->a_ops.adapter_notify = aac_src_notify_adapter;
>  	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
>  	dev->a_ops.adapter_check_health = aac_src_check_health; @@ -735,6 +750,7 @@ int aac_src_init(struct aac_dev *dev)
>  	dev->dbg_base = pci_resource_start(dev->pdev, 2);
>  	dev->dbg_base_mapped = dev->regs.src.bar1;
>  	dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
> +	dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
>  
>  	aac_adapter_enable_int(dev);
>  
> @@ -861,6 +877,7 @@ int aac_srcv_init(struct aac_dev *dev)
>  	 */
>  	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
>  	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
> +	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
>  	dev->a_ops.adapter_notify = aac_src_notify_adapter;
>  	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
>  	dev->a_ops.adapter_check_health = aac_src_check_health; @@ -913,6 +930,7 @@ int aac_srcv_init(struct aac_dev *dev)
>  	dev->dbg_base = dev->base_start;
>  	dev->dbg_base_mapped = dev->base;
>  	dev->dbg_size = dev->base_size;
> +	dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
>  
>  	aac_adapter_enable_int(dev);
>  
> --
> 1.7.7.3
> 
Please split off the unrelated bits into a separate patch. Otherwise
tracking and regression testing becomes really hard.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 6/7] aacraid: performance improvement changes

[Mahesh Rajashekhara]

Add performance improvement changes.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h  |    6 +++---
 drivers/scsi/aacraid/comminit.c |   12 +++++++++++-
 drivers/scsi/aacraid/commsup.c  |    7 ++-----
 drivers/scsi/aacraid/dpcsup.c   |    4 ++--
 drivers/scsi/aacraid/linit.c    |   10 ++++------
 drivers/scsi/aacraid/rx.c       |   14 +++-----------
 drivers/scsi/aacraid/src.c      |    5 +----
 7 files changed, 26 insertions(+), 32 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index a37762e..74a0440 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -12,7 +12,7 @@
  *              D E F I N E S
  *----------------------------------------------------------------------------*/
 
-#define AAC_MAX_MSIX		32	/* vectors */
+#define AAC_MAX_MSIX		8	/* vectors */
 #define AAC_PCI_MSI_ENABLE	0x8000
 
 enum {
@@ -62,7 +62,7 @@ enum {
 #define	PMC_GLOBAL_INT_BIT0		0x00000001
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 30300
+# define AAC_DRIVER_BUILD 40709
 # define AAC_DRIVER_BRANCH "-ms"
 #endif
 #define MAXIMUM_NUM_CONTAINERS	32
@@ -633,7 +633,7 @@ struct aac_queue {
 	spinlock_t		lockdata;	/* Actual lock (used only on one side of the lock) */
 	struct list_head	cmdq;		/* A queue of FIBs which need to be prcessed by the FS thread. This is */
 						/* only valid for command queues which receive entries from the adapter. */
-	u32			numpending;	/* Number of entries on outstanding queue. */
+	atomic_t		numpending;	/* Number of entries on outstanding queue. */
 	struct aac_dev *	dev;		/* Back pointer to adapter structure */
 };
 
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index c3e13ae..c16043e 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -181,7 +181,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
     
 static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize)
 {
-	q->numpending = 0;
+	atomic_set(&q->numpending, 0);
 	q->dev = dev;
 	init_waitqueue_head(&q->cmdready);
 	INIT_LIST_HEAD(&q->cmdq);
@@ -510,6 +510,7 @@ static void aac_define_int_mode(struct aac_dev *dev)
 {
 
 	int i, msi_count;
+	int cpu;
 
 	msi_count = i = 0;
 	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
@@ -571,6 +572,15 @@ static void aac_define_int_mode(struct aac_dev *dev)
 	else {
 		if (dev->max_msix > msi_count)
 			dev->max_msix = msi_count;
+
+		/* Added to set IRQ affinity */
+		cpu = cpumask_first(cpu_online_mask);
+		cpu = cpumask_next(cpu, cpu_online_mask);
+
+		for (i = 0; i < dev->max_msix; i++) {
+			irq_set_affinity_hint(dev->msixentry[i].vector, get_cpu_mask(cpu));
+			cpu = cpumask_next(cpu, cpu_online_mask);
+		}
 	}
 	dev->vector_cap = (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) / msi_count;
 }
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 2bed445..0555023 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -318,7 +318,7 @@ static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entr
 	/* Queue is full */
 	if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) {
 		printk(KERN_WARNING "Queue %d full, %u outstanding.\n",
-				qid, q->numpending);
+				qid, atomic_read(&q->numpending));
 		return 0;
 	} else {
 		*entry = q->base + *index;
@@ -411,7 +411,6 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 	struct aac_dev * dev = fibptr->dev;
 	struct hw_fib * hw_fib = fibptr->hw_fib_va;
 	unsigned long flags = 0;
-	unsigned long qflags;
 	unsigned long mflags = 0;
 	unsigned long sflags = 0;
 
@@ -565,9 +564,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 				int blink;
 				if (time_is_before_eq_jiffies(timeout)) {
 					struct aac_queue * q = &dev->queues->queue[AdapNormCmdQueue];
-					spin_lock_irqsave(q->lock, qflags);
-					q->numpending--;
-					spin_unlock_irqrestore(q->lock, qflags);
+					atomic_dec(&q->numpending);
 					if (wait == -1) {
 	        				printk(KERN_ERR "aacraid: aac_fib_send: first asynchronous command timed out.\n"
 						  "Usually a result of a PCI interrupt routing problem;\n"
diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c
index 2e39466..da9d993 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -84,7 +84,7 @@ unsigned int aac_response_normal(struct aac_queue * q)
 		 *	continue. The caller has already been notified that
 		 *	the fib timed out.
 		 */
-		dev->queues->queue[AdapNormCmdQueue].numpending--;
+		atomic_dec(&dev->queues->queue[AdapNormCmdQueue].numpending);
 
 		if (unlikely(fib->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) {
 			spin_unlock_irqrestore(q->lock, flags);
@@ -354,7 +354,7 @@ unsigned int aac_intr_normal(struct aac_dev *dev, u32 index,
 		 *	continue. The caller has already been notified that
 		 *	the fib timed out.
 		 */
-		dev->queues->queue[AdapNormCmdQueue].numpending--;
+		atomic_dec(&dev->queues->queue[AdapNormCmdQueue].numpending);
 
 		if (unlikely(fib->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) {
 			aac_fib_complete(fib);
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 4c5ba9e..e0f9f81 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -250,16 +250,14 @@ static struct aac_driver_ident aac_drivers[] = {
  *
  *	TODO: unify with aac_scsi_cmd().
  */
-
-static int aac_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+static int aac_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmd)
 {
-	cmd->scsi_done = done;
+	int r = 0;
 	cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
-	return (aac_scsi_cmd(cmd) ? FAILED : 0);
+	r = (aac_scsi_cmd(cmd) ? FAILED : 0);
+	return r;
 }
 
-static DEF_SCSI_QCMD(aac_queuecommand)
-
 /**
  *	aac_info		-	Returns the host adapter name
  *	@shost:		Scsi host to report on
diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c
index 5c6a870..9570612 100644
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -400,16 +400,13 @@ int aac_rx_deliver_producer(struct fib * fib)
 {
 	struct aac_dev *dev = fib->dev;
 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
-	unsigned long qflags;
 	u32 Index;
 	unsigned long nointr = 0;
 
-	spin_lock_irqsave(q->lock, qflags);
 	aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
 
-	q->numpending++;
+	atomic_inc(&q->numpending);
 	*(q->headers.producer) = cpu_to_le32(Index + 1);
-	spin_unlock_irqrestore(q->lock, qflags);
 	if (!(nointr & aac_config.irq_mod))
 		aac_adapter_notify(dev, AdapNormCmdQueue);
 
@@ -426,15 +423,12 @@ static int aac_rx_deliver_message(struct fib * fib)
 {
 	struct aac_dev *dev = fib->dev;
 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
-	unsigned long qflags;
 	u32 Index;
 	u64 addr;
 	volatile void __iomem *device;
 
 	unsigned long count = 10000000L; /* 50 seconds */
-	spin_lock_irqsave(q->lock, qflags);
-	q->numpending++;
-	spin_unlock_irqrestore(q->lock, qflags);
+	atomic_inc(&q->numpending);
 	for(;;) {
 		Index = rx_readl(dev, MUnit.InboundQueue);
 		if (unlikely(Index == 0xFFFFFFFFL))
@@ -442,9 +436,7 @@ static int aac_rx_deliver_message(struct fib * fib)
 		if (likely(Index != 0xFFFFFFFFL))
 			break;
 		if (--count == 0) {
-			spin_lock_irqsave(q->lock, qflags);
-			q->numpending--;
-			spin_unlock_irqrestore(q->lock, qflags);
+			atomic_dec(&q->numpending);
 			return -ETIMEDOUT;
 		}
 		udelay(5);
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index 82ff025..bde26a2 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -433,15 +433,12 @@ static int aac_src_deliver_message(struct fib *fib)
 {
 	struct aac_dev *dev = fib->dev;
 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
-	unsigned long qflags;
 	u32 fibsize;
 	dma_addr_t address;
 	struct aac_fib_xporthdr *pFibX;
 	u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size);
 
-	spin_lock_irqsave(q->lock, qflags);
-	q->numpending++;
-	spin_unlock_irqrestore(q->lock, qflags);
+	atomic_inc(&q->numpending);
 
 	if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest &&
 	    dev->max_msix > 1) {
-- 
1.7.7.3

RE: [PATCH 6/7] aacraid: performance improvement changes

[Murthy Bhat]

Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>

-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 04, 2015 2:09 PM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 6/7] aacraid: performance improvement changes

Add performance improvement changes.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h  |    6 +++---
 drivers/scsi/aacraid/comminit.c |   12 +++++++++++-
 drivers/scsi/aacraid/commsup.c  |    7 ++-----
 drivers/scsi/aacraid/dpcsup.c   |    4 ++--
 drivers/scsi/aacraid/linit.c    |   10 ++++------
 drivers/scsi/aacraid/rx.c       |   14 +++-----------
 drivers/scsi/aacraid/src.c      |    5 +----
 7 files changed, 26 insertions(+), 32 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index a37762e..74a0440 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -12,7 +12,7 @@
  *              D E F I N E S
  *----------------------------------------------------------------------------*/
 
-#define AAC_MAX_MSIX		32	/* vectors */
+#define AAC_MAX_MSIX		8	/* vectors */
 #define AAC_PCI_MSI_ENABLE	0x8000
 
 enum {
@@ -62,7 +62,7 @@ enum {
 #define	PMC_GLOBAL_INT_BIT0		0x00000001
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 30300
+# define AAC_DRIVER_BUILD 40709
 # define AAC_DRIVER_BRANCH "-ms"
 #endif
 #define MAXIMUM_NUM_CONTAINERS	32
@@ -633,7 +633,7 @@ struct aac_queue {
 	spinlock_t		lockdata;	/* Actual lock (used only on one side of the lock) */
 	struct list_head	cmdq;		/* A queue of FIBs which need to be prcessed by the FS thread. This is */
 						/* only valid for command queues which receive entries from the adapter. */
-	u32			numpending;	/* Number of entries on outstanding queue. */
+	atomic_t		numpending;	/* Number of entries on outstanding queue. */
 	struct aac_dev *	dev;		/* Back pointer to adapter structure */
 };
 
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index c3e13ae..c16043e 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -181,7 +181,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
     
 static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize)
 {
-	q->numpending = 0;
+	atomic_set(&q->numpending, 0);
 	q->dev = dev;
 	init_waitqueue_head(&q->cmdready);
 	INIT_LIST_HEAD(&q->cmdq);
@@ -510,6 +510,7 @@ static void aac_define_int_mode(struct aac_dev *dev)
 {
 
 	int i, msi_count;
+	int cpu;
 
 	msi_count = i = 0;
 	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
@@ -571,6 +572,15 @@ static void aac_define_int_mode(struct aac_dev *dev)
 	else {
 		if (dev->max_msix > msi_count)
 			dev->max_msix = msi_count;
+
+		/* Added to set IRQ affinity */
+		cpu = cpumask_first(cpu_online_mask);
+		cpu = cpumask_next(cpu, cpu_online_mask);
+
+		for (i = 0; i < dev->max_msix; i++) {
+			irq_set_affinity_hint(dev->msixentry[i].vector, get_cpu_mask(cpu));
+			cpu = cpumask_next(cpu, cpu_online_mask);
+		}
 	}
 	dev->vector_cap = (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) / msi_count;
 }
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 2bed445..0555023 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -318,7 +318,7 @@ static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entr
 	/* Queue is full */
 	if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) {
 		printk(KERN_WARNING "Queue %d full, %u outstanding.\n",
-				qid, q->numpending);
+				qid, atomic_read(&q->numpending));
 		return 0;
 	} else {
 		*entry = q->base + *index;
@@ -411,7 +411,6 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 	struct aac_dev * dev = fibptr->dev;
 	struct hw_fib * hw_fib = fibptr->hw_fib_va;
 	unsigned long flags = 0;
-	unsigned long qflags;
 	unsigned long mflags = 0;
 	unsigned long sflags = 0;
 
@@ -565,9 +564,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 				int blink;
 				if (time_is_before_eq_jiffies(timeout)) {
 					struct aac_queue * q = &dev->queues->queue[AdapNormCmdQueue];
-					spin_lock_irqsave(q->lock, qflags);
-					q->numpending--;
-					spin_unlock_irqrestore(q->lock, qflags);
+					atomic_dec(&q->numpending);
 					if (wait == -1) {
 	        				printk(KERN_ERR "aacraid: aac_fib_send: first asynchronous command timed out.\n"
 						  "Usually a result of a PCI interrupt routing problem;\n"
diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c
index 2e39466..da9d993 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -84,7 +84,7 @@ unsigned int aac_response_normal(struct aac_queue * q)
 		 *	continue. The caller has already been notified that
 		 *	the fib timed out.
 		 */
-		dev->queues->queue[AdapNormCmdQueue].numpending--;
+		atomic_dec(&dev->queues->queue[AdapNormCmdQueue].numpending);
 
 		if (unlikely(fib->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) {
 			spin_unlock_irqrestore(q->lock, flags);
@@ -354,7 +354,7 @@ unsigned int aac_intr_normal(struct aac_dev *dev, u32 index,
 		 *	continue. The caller has already been notified that
 		 *	the fib timed out.
 		 */
-		dev->queues->queue[AdapNormCmdQueue].numpending--;
+		atomic_dec(&dev->queues->queue[AdapNormCmdQueue].numpending);
 
 		if (unlikely(fib->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) {
 			aac_fib_complete(fib);
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 4c5ba9e..e0f9f81 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -250,16 +250,14 @@ static struct aac_driver_ident aac_drivers[] = {
  *
  *	TODO: unify with aac_scsi_cmd().
  */
-
-static int aac_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+static int aac_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmd)
 {
-	cmd->scsi_done = done;
+	int r = 0;
 	cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
-	return (aac_scsi_cmd(cmd) ? FAILED : 0);
+	r = (aac_scsi_cmd(cmd) ? FAILED : 0);
+	return r;
 }
 
-static DEF_SCSI_QCMD(aac_queuecommand)
-
 /**
  *	aac_info		-	Returns the host adapter name
  *	@shost:		Scsi host to report on
diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c
index 5c6a870..9570612 100644
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -400,16 +400,13 @@ int aac_rx_deliver_producer(struct fib * fib)
 {
 	struct aac_dev *dev = fib->dev;
 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
-	unsigned long qflags;
 	u32 Index;
 	unsigned long nointr = 0;
 
-	spin_lock_irqsave(q->lock, qflags);
 	aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
 
-	q->numpending++;
+	atomic_inc(&q->numpending);
 	*(q->headers.producer) = cpu_to_le32(Index + 1);
-	spin_unlock_irqrestore(q->lock, qflags);
 	if (!(nointr & aac_config.irq_mod))
 		aac_adapter_notify(dev, AdapNormCmdQueue);
 
@@ -426,15 +423,12 @@ static int aac_rx_deliver_message(struct fib * fib)
 {
 	struct aac_dev *dev = fib->dev;
 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
-	unsigned long qflags;
 	u32 Index;
 	u64 addr;
 	volatile void __iomem *device;
 
 	unsigned long count = 10000000L; /* 50 seconds */
-	spin_lock_irqsave(q->lock, qflags);
-	q->numpending++;
-	spin_unlock_irqrestore(q->lock, qflags);
+	atomic_inc(&q->numpending);
 	for(;;) {
 		Index = rx_readl(dev, MUnit.InboundQueue);
 		if (unlikely(Index == 0xFFFFFFFFL))
@@ -442,9 +436,7 @@ static int aac_rx_deliver_message(struct fib * fib)
 		if (likely(Index != 0xFFFFFFFFL))
 			break;
 		if (--count == 0) {
-			spin_lock_irqsave(q->lock, qflags);
-			q->numpending--;
-			spin_unlock_irqrestore(q->lock, qflags);
+			atomic_dec(&q->numpending);
 			return -ETIMEDOUT;
 		}
 		udelay(5);
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index 82ff025..bde26a2 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -433,15 +433,12 @@ static int aac_src_deliver_message(struct fib *fib)
 {
 	struct aac_dev *dev = fib->dev;
 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
-	unsigned long qflags;
 	u32 fibsize;
 	dma_addr_t address;
 	struct aac_fib_xporthdr *pFibX;
 	u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size);
 
-	spin_lock_irqsave(q->lock, qflags);
-	q->numpending++;
-	spin_unlock_irqrestore(q->lock, qflags);
+	atomic_inc(&q->numpending);
 
 	if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest &&
 	    dev->max_msix > 1) {
-- 
1.7.7.3

RE: [PATCH 6/7] aacraid: performance improvement changes

[Achim Leubner]

Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>


-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 4, 2015 9:39 AM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 6/7] aacraid: performance improvement changes

Add performance improvement changes.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h  |    6 +++---
 drivers/scsi/aacraid/comminit.c |   12 +++++++++++-
 drivers/scsi/aacraid/commsup.c  |    7 ++-----
 drivers/scsi/aacraid/dpcsup.c   |    4 ++--
 drivers/scsi/aacraid/linit.c    |   10 ++++------
 drivers/scsi/aacraid/rx.c       |   14 +++-----------
 drivers/scsi/aacraid/src.c      |    5 +----
 7 files changed, 26 insertions(+), 32 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index a37762e..74a0440 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -12,7 +12,7 @@
  *              D E F I N E S
  *----------------------------------------------------------------------------*/
 
-#define AAC_MAX_MSIX		32	/* vectors */
+#define AAC_MAX_MSIX		8	/* vectors */
 #define AAC_PCI_MSI_ENABLE	0x8000
 
 enum {
@@ -62,7 +62,7 @@ enum {
 #define	PMC_GLOBAL_INT_BIT0		0x00000001
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 30300
+# define AAC_DRIVER_BUILD 40709
 # define AAC_DRIVER_BRANCH "-ms"
 #endif
 #define MAXIMUM_NUM_CONTAINERS	32
@@ -633,7 +633,7 @@ struct aac_queue {
 	spinlock_t		lockdata;	/* Actual lock (used only on one side of the lock) */
 	struct list_head	cmdq;		/* A queue of FIBs which need to be prcessed by the FS thread. This is */
 						/* only valid for command queues which receive entries from the adapter. */
-	u32			numpending;	/* Number of entries on outstanding queue. */
+	atomic_t		numpending;	/* Number of entries on outstanding queue. */
 	struct aac_dev *	dev;		/* Back pointer to adapter structure */
 };
 
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index c3e13ae..c16043e 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -181,7 +181,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
     
 static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize)  {
-	q->numpending = 0;
+	atomic_set(&q->numpending, 0);
 	q->dev = dev;
 	init_waitqueue_head(&q->cmdready);
 	INIT_LIST_HEAD(&q->cmdq);
@@ -510,6 +510,7 @@ static void aac_define_int_mode(struct aac_dev *dev)  {
 
 	int i, msi_count;
+	int cpu;
 
 	msi_count = i = 0;
 	/* max. vectors from GET_COMM_PREFERRED_SETTINGS */ @@ -571,6 +572,15 @@ static void aac_define_int_mode(struct aac_dev *dev)
 	else {
 		if (dev->max_msix > msi_count)
 			dev->max_msix = msi_count;
+
+		/* Added to set IRQ affinity */
+		cpu = cpumask_first(cpu_online_mask);
+		cpu = cpumask_next(cpu, cpu_online_mask);
+
+		for (i = 0; i < dev->max_msix; i++) {
+			irq_set_affinity_hint(dev->msixentry[i].vector, get_cpu_mask(cpu));
+			cpu = cpumask_next(cpu, cpu_online_mask);
+		}
 	}
 	dev->vector_cap = (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) / msi_count;  } diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 2bed445..0555023 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -318,7 +318,7 @@ static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entr
 	/* Queue is full */
 	if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) {
 		printk(KERN_WARNING "Queue %d full, %u outstanding.\n",
-				qid, q->numpending);
+				qid, atomic_read(&q->numpending));
 		return 0;
 	} else {
 		*entry = q->base + *index;
@@ -411,7 +411,6 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 	struct aac_dev * dev = fibptr->dev;
 	struct hw_fib * hw_fib = fibptr->hw_fib_va;
 	unsigned long flags = 0;
-	unsigned long qflags;
 	unsigned long mflags = 0;
 	unsigned long sflags = 0;
 
@@ -565,9 +564,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 				int blink;
 				if (time_is_before_eq_jiffies(timeout)) {
 					struct aac_queue * q = &dev->queues->queue[AdapNormCmdQueue];
-					spin_lock_irqsave(q->lock, qflags);
-					q->numpending--;
-					spin_unlock_irqrestore(q->lock, qflags);
+					atomic_dec(&q->numpending);
 					if (wait == -1) {
 	        				printk(KERN_ERR "aacraid: aac_fib_send: first asynchronous command timed out.\n"
 						  "Usually a result of a PCI interrupt routing problem;\n"
diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c index 2e39466..da9d993 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -84,7 +84,7 @@ unsigned int aac_response_normal(struct aac_queue * q)
 		 *	continue. The caller has already been notified that
 		 *	the fib timed out.
 		 */
-		dev->queues->queue[AdapNormCmdQueue].numpending--;
+		atomic_dec(&dev->queues->queue[AdapNormCmdQueue].numpending);
 
 		if (unlikely(fib->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) {
 			spin_unlock_irqrestore(q->lock, flags); @@ -354,7 +354,7 @@ unsigned int aac_intr_normal(struct aac_dev *dev, u32 index,
 		 *	continue. The caller has already been notified that
 		 *	the fib timed out.
 		 */
-		dev->queues->queue[AdapNormCmdQueue].numpending--;
+		atomic_dec(&dev->queues->queue[AdapNormCmdQueue].numpending);
 
 		if (unlikely(fib->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) {
 			aac_fib_complete(fib);
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 4c5ba9e..e0f9f81 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -250,16 +250,14 @@ static struct aac_driver_ident aac_drivers[] = {
  *
  *	TODO: unify with aac_scsi_cmd().
  */
-
-static int aac_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+static int aac_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd 
+*cmd)
 {
-	cmd->scsi_done = done;
+	int r = 0;
 	cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
-	return (aac_scsi_cmd(cmd) ? FAILED : 0);
+	r = (aac_scsi_cmd(cmd) ? FAILED : 0);
+	return r;
 }
 
-static DEF_SCSI_QCMD(aac_queuecommand)
-
 /**
  *	aac_info		-	Returns the host adapter name
  *	@shost:		Scsi host to report on
diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c index 5c6a870..9570612 100644
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -400,16 +400,13 @@ int aac_rx_deliver_producer(struct fib * fib)  {
 	struct aac_dev *dev = fib->dev;
 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
-	unsigned long qflags;
 	u32 Index;
 	unsigned long nointr = 0;
 
-	spin_lock_irqsave(q->lock, qflags);
 	aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
 
-	q->numpending++;
+	atomic_inc(&q->numpending);
 	*(q->headers.producer) = cpu_to_le32(Index + 1);
-	spin_unlock_irqrestore(q->lock, qflags);
 	if (!(nointr & aac_config.irq_mod))
 		aac_adapter_notify(dev, AdapNormCmdQueue);
 
@@ -426,15 +423,12 @@ static int aac_rx_deliver_message(struct fib * fib)  {
 	struct aac_dev *dev = fib->dev;
 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
-	unsigned long qflags;
 	u32 Index;
 	u64 addr;
 	volatile void __iomem *device;
 
 	unsigned long count = 10000000L; /* 50 seconds */
-	spin_lock_irqsave(q->lock, qflags);
-	q->numpending++;
-	spin_unlock_irqrestore(q->lock, qflags);
+	atomic_inc(&q->numpending);
 	for(;;) {
 		Index = rx_readl(dev, MUnit.InboundQueue);
 		if (unlikely(Index == 0xFFFFFFFFL))
@@ -442,9 +436,7 @@ static int aac_rx_deliver_message(struct fib * fib)
 		if (likely(Index != 0xFFFFFFFFL))
 			break;
 		if (--count == 0) {
-			spin_lock_irqsave(q->lock, qflags);
-			q->numpending--;
-			spin_unlock_irqrestore(q->lock, qflags);
+			atomic_dec(&q->numpending);
 			return -ETIMEDOUT;
 		}
 		udelay(5);
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c index 82ff025..bde26a2 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -433,15 +433,12 @@ static int aac_src_deliver_message(struct fib *fib)  {
 	struct aac_dev *dev = fib->dev;
 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
-	unsigned long qflags;
 	u32 fibsize;
 	dma_addr_t address;
 	struct aac_fib_xporthdr *pFibX;
 	u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size);
 
-	spin_lock_irqsave(q->lock, qflags);
-	q->numpending++;
-	spin_unlock_irqrestore(q->lock, qflags);
+	atomic_inc(&q->numpending);
 
 	if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest &&
 	    dev->max_msix > 1) {
--
1.7.7.3

Re: [PATCH 6/7] aacraid: performance improvement changes

[Hannes Reinecke]

On 03/17/2015 04:27 PM, Achim Leubner wrote:
> Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>
> 
> 
> -----Original Message-----
> From: Mahesh Rajashekhara 
> Sent: Wednesday, March 4, 2015 9:39 AM
> To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
> Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
> Subject: [PATCH 6/7] aacraid: performance improvement changes
> 
> Add performance improvement changes.
> 
> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 7/7] aacraid: AIF raw device remove support

[Mahesh Rajashekhara]

Add AIF raw device remove support

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h |    3 +++
 drivers/scsi/aacraid/commsup.c |   32 ++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 0 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 74a0440..5aaa9a6 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -2061,6 +2061,9 @@ extern struct aac_common aac_config;
 /* PMC NEW COMM: Request the event data */
 #define		AifReqEvent		200
 
+/* RAW device deleted */
+#define		AifRawDeviceRemove	203
+
 /*
  *	Adapter Initiated FIB command structures. Start with the adapter
  *	initiated FIBs that really come from the adapter, and get responded
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 0555023..8bb9ee4 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -884,6 +884,38 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 	switch (le32_to_cpu(aifcmd->command)) {
 	case AifCmdDriverNotify:
 		switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) {
+		case AifRawDeviceRemove:
+			container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
+			if ((container >> 28)) {
+				container = (u32)-1;
+				break;
+			}
+			channel = (container >> 24) & 0xF;
+			if (channel >= dev->maximum_num_channels) {
+				container = (u32)-1;
+				break;
+			}
+			id = container & 0xFFFF;
+			if (id >= dev->maximum_num_physicals) {
+				container = (u32)-1;
+				break;
+			}
+			lun = (container >> 16) & 0xFF;
+			container = (u32)-1;
+			channel = aac_phys_to_logical(channel);
+			device_config_needed =
+			  (((__le32 *)aifcmd->data)[0] ==
+			    cpu_to_le32(AifRawDeviceRemove)) ? DELETE : ADD;
+
+			if (device_config_needed == ADD) {
+				device = scsi_device_lookup(dev->scsi_host_ptr, channel, id, lun);
+				if (device) {
+					scsi_remove_device(device);
+					scsi_device_put(device);
+				}
+			}
+			break;
+
 		/*
 		 *	Morph or Expand complete
 		 */
-- 
1.7.7.3

RE: [PATCH 7/7] aacraid: AIF raw device remove support

[Murthy Bhat]

Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>

-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 04, 2015 2:09 PM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 7/7] aacraid: AIF raw device remove support

Add AIF raw device remove support

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h |    3 +++
 drivers/scsi/aacraid/commsup.c |   32 ++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 0 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 74a0440..5aaa9a6 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -2061,6 +2061,9 @@ extern struct aac_common aac_config;
 /* PMC NEW COMM: Request the event data */
 #define		AifReqEvent		200
 
+/* RAW device deleted */
+#define		AifRawDeviceRemove	203
+
 /*
  *	Adapter Initiated FIB command structures. Start with the adapter
  *	initiated FIBs that really come from the adapter, and get responded
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 0555023..8bb9ee4 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -884,6 +884,38 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 	switch (le32_to_cpu(aifcmd->command)) {
 	case AifCmdDriverNotify:
 		switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) {
+		case AifRawDeviceRemove:
+			container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
+			if ((container >> 28)) {
+				container = (u32)-1;
+				break;
+			}
+			channel = (container >> 24) & 0xF;
+			if (channel >= dev->maximum_num_channels) {
+				container = (u32)-1;
+				break;
+			}
+			id = container & 0xFFFF;
+			if (id >= dev->maximum_num_physicals) {
+				container = (u32)-1;
+				break;
+			}
+			lun = (container >> 16) & 0xFF;
+			container = (u32)-1;
+			channel = aac_phys_to_logical(channel);
+			device_config_needed =
+			  (((__le32 *)aifcmd->data)[0] ==
+			    cpu_to_le32(AifRawDeviceRemove)) ? DELETE : ADD;
+
+			if (device_config_needed == ADD) {
+				device = scsi_device_lookup(dev->scsi_host_ptr, channel, id, lun);
+				if (device) {
+					scsi_remove_device(device);
+					scsi_device_put(device);
+				}
+			}
+			break;
+
 		/*
 		 *	Morph or Expand complete
 		 */
-- 
1.7.7.3

RE: [PATCH 7/7] aacraid: AIF raw device remove support

[Achim Leubner]

Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>


-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 4, 2015 9:39 AM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 7/7] aacraid: AIF raw device remove support

Add AIF raw device remove support

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h |    3 +++
 drivers/scsi/aacraid/commsup.c |   32 ++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 0 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 74a0440..5aaa9a6 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -2061,6 +2061,9 @@ extern struct aac_common aac_config;
 /* PMC NEW COMM: Request the event data */
 #define		AifReqEvent		200
 
+/* RAW device deleted */
+#define		AifRawDeviceRemove	203
+
 /*
  *	Adapter Initiated FIB command structures. Start with the adapter
  *	initiated FIBs that really come from the adapter, and get responded
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 0555023..8bb9ee4 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -884,6 +884,38 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 	switch (le32_to_cpu(aifcmd->command)) {
 	case AifCmdDriverNotify:
 		switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) {
+		case AifRawDeviceRemove:
+			container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
+			if ((container >> 28)) {
+				container = (u32)-1;
+				break;
+			}
+			channel = (container >> 24) & 0xF;
+			if (channel >= dev->maximum_num_channels) {
+				container = (u32)-1;
+				break;
+			}
+			id = container & 0xFFFF;
+			if (id >= dev->maximum_num_physicals) {
+				container = (u32)-1;
+				break;
+			}
+			lun = (container >> 16) & 0xFF;
+			container = (u32)-1;
+			channel = aac_phys_to_logical(channel);
+			device_config_needed =
+			  (((__le32 *)aifcmd->data)[0] ==
+			    cpu_to_le32(AifRawDeviceRemove)) ? DELETE : ADD;
+
+			if (device_config_needed == ADD) {
+				device = scsi_device_lookup(dev->scsi_host_ptr, channel, id, lun);
+				if (device) {
+					scsi_remove_device(device);
+					scsi_device_put(device);
+				}
+			}
+			break;
+
 		/*
 		 *	Morph or Expand complete
 		 */
--
1.7.7.3

Re: [PATCH 7/7] aacraid: AIF raw device remove support

[Hannes Reinecke]

On 03/17/2015 04:28 PM, Achim Leubner wrote:
> Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>
> 
> 
> -----Original Message-----
> From: Mahesh Rajashekhara 
> Sent: Wednesday, March 4, 2015 9:39 AM
> To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
> Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
> Subject: [PATCH 7/7] aacraid: AIF raw device remove support
> 
> Add AIF raw device remove support
> 
> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>

But please split off the unrelated patches from the VPD support one.
And I would recommend to split off the version increase into a
separate one, too, to be applied at the end.
Otherwise it'll be hard to track which patches belong to which version.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

RE: [PATCH 7/7] aacraid: AIF raw device remove support

[Mahesh Rajashekhara]

Thanks for your review comments. I have prepared V2 patch set and in which I have taken care all your review comments. 

Regards,
Mahesh

-----Original Message-----
From: Hannes Reinecke [mailto:hare@suse.de] 
Sent: Wednesday, March 18, 2015 4:59 PM
To: Achim Leubner; Mahesh Rajashekhara; JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Subject: Re: [PATCH 7/7] aacraid: AIF raw device remove support

On 03/17/2015 04:28 PM, Achim Leubner wrote:
> Reviewed-by: Achim Leubner <Achim.Leubner@pmcs.com>
> 
> 
> -----Original Message-----
> From: Mahesh Rajashekhara
> Sent: Wednesday, March 4, 2015 9:39 AM
> To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
> Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth 
> Pandurangan; Rich Bono; Mahesh Rajashekhara
> Subject: [PATCH 7/7] aacraid: AIF raw device remove support
> 
> Add AIF raw device remove support
> 
> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>

But please split off the unrelated patches from the VPD support one.
And I would recommend to split off the version increase into a separate one, too, to be applied at the end.
Otherwise it'll be hard to track which patches belong to which version.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

RE: [PATCH 0/7] aacraid driver updates

[Mahesh Rajashekhara]

Hi James,

Can you please let me know the status of this patch set which I submitted sometime back.

Thanks,
Mahesh

-----Original Message-----
From: Mahesh Rajashekhara 
Sent: Wednesday, March 04, 2015 2:08 PM
To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org
Cc: aacraid@pmc-sierra.com; Harry Yang; Achim Leubner; Rajinikanth Pandurangan; Rich Bono; Mahesh Rajashekhara
Subject: [PATCH 0/7] aacraid driver updates

This patch set includes some important bug fixes and new feature supports.

Mahesh Rajashekhara (7):
  aacraid: AIF support for SES device add/remove
  aacraid: IOCTL pass-through command fix
  aacraid: 4KB sector support
  aacraid: MSI-x support
  aacraid: vpd page code 0x83 support
  aacraid: performance improvement changes
  aacraid: AIF raw device remove support

 drivers/scsi/aacraid/aachba.c   |  355 +++++++++++++++++++++++++++++------
 drivers/scsi/aacraid/aacraid.h  |  102 +++++++++-
 drivers/scsi/aacraid/commctrl.c |   10 +-
 drivers/scsi/aacraid/comminit.c |  106 ++++++++++-
 drivers/scsi/aacraid/commsup.c  |   78 ++++++--
 drivers/scsi/aacraid/dpcsup.c   |   13 +-
 drivers/scsi/aacraid/linit.c    |   48 +++--
 drivers/scsi/aacraid/rx.c       |   14 +-
 drivers/scsi/aacraid/src.c      |  404 +++++++++++++++++++++++++++++----------
 9 files changed, 894 insertions(+), 236 deletions(-)

-- 
1.7.7.3

Re: [PATCH 0/7] aacraid driver updates

[James Bottomley]

On Mon, 2015-03-16 at 11:24 +0000, Mahesh Rajashekhara wrote:
> Hi James,
> 
> Can you please let me know the status of this patch set which I
> submitted sometime back.

We're following this:

http://marc.info/?l=linux-scsi&m=142556689315114

So you need a review.

James

[PATCH 0/7] aacraid: DRiver updates

[Mark Haverkamp]

The following 7 patches contain various updates described in each mail.

Patches apply to the scsi-misc-2.6 tree.

 aachba.c   |  386 ++++++++++++++++++++++++++++++---------------------
 aacraid.h  |    9 -
 commctrl.c |  282 ++++++++++++++++++++++---------------
 commsup.c  |  106 +++++---------
 dpcsup.c   |   32 ++--
 linit.c    |   64 +++++++-
 rx.c       |   43 +++--

-- 
Mark Haverkamp <markh@linux-foundation.org>

[PATCH 0/7] aacraid driver updates

[Mark Haverkamp]

This is an update to the set of patches that I sent out on September
8th.  There have been updates from review comments, some bugs fixed, and
one patch (add name to driver template) dropped.

Applies to scsi-misc-2.6 git tree.


-- 
Mark Haverkamp <markh@osdl.org>

[PATCH 0/7] aacraid driver updates

[Mark Haverkamp]

The following 7 patches contain various aacraid driver updates described
in each mail.

Some patches have been sent out previously.  All have been re-diffed to
make sure that they apply to the latest scsi-misc-2.6 git tree.


-- 
Mark Haverkamp <markh@osdl.org>