[PATCH 3/3] megaraid_sas: support for 1078 type controller added

From: Sumant Patro
Date: Wed Jan 25 2006 - 15:02:33 EST

Hello All,

This patch adds support for 1078 type controller (device id : 0x62).
Patch is made against the latest git snapshot of scsi-misc-2.6 tree.

Please review it and all comments are appreciated.

Thanks,

Sumant Patro

Signed-off-by: Sumant Patro <Sumant.Patro@xxxxxxxx>

diff -uprN linux2.6.orig/Documentation/scsi/ChangeLog.megaraid_sas
linux2.6/Documentation/scsi/ChangeLog.megaraid_sas
--- linux2.6.orig/Documentation/scsi/ChangeLog.megaraid_sas 2006-01-23
15:08:40.000000000 -0800
+++ linux2.6/Documentation/scsi/ChangeLog.megaraid_sas 2006-01-23
15:53:46.000000000 -0800
@@ -1,3 +1,11 @@
+1 Release Date : Mon Jan 23 15:16:30 PST 2006 - Sumant Patro
<Sumant.Patro@xxxxxxxx>
+2 Current Version : 00.00.02.02
+3 Older Version : 00.00.02.01
+
+i. Support for 1078 type (ppc IOP) controller, device id : 0x62 added.
During initialisation, depending on the device id, the template members
are intialised with function pointers specfic to the ppc or xscale
controllers.
+
+ -Sumant Patro <Sumant.Patro@xxxxxxxx>
+
1 Release Date : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro
<Sumant.Patro@xxxxxxxx>
2 Current Version : 00.00.02.02
3 Older Version : 00.00.02.01
diff -uprN linux2.6.orig/drivers/scsi/megaraid/megaraid_sas.c
linux2.6/drivers/scsi/megaraid/megaraid_sas.c
--- linux2.6.orig/drivers/scsi/megaraid/megaraid_sas.c 2006-01-23
15:41:00.000000000 -0800
+++ linux2.6/drivers/scsi/megaraid/megaraid_sas.c 2006-01-23
15:41:49.000000000 -0800
@@ -60,6 +60,12 @@ static struct pci_device_id megasas_pci_
PCI_ANY_ID,
},
{
+ PCI_VENDOR_ID_LSI_LOGIC,
+ PCI_DEVICE_ID_LSI_SAS1078R, // ppc IOP
+ PCI_ANY_ID,
+ PCI_ANY_ID,
+ },
+ {
PCI_VENDOR_ID_DELL,
PCI_DEVICE_ID_DELL_PERC5, // xscale IOP
PCI_ANY_ID,
@@ -199,6 +205,86 @@ static struct megasas_instance_template
*/

/**
+* The following functions are defined for ppc (deviceid : 0x62)
+* controllers
+*/
+
+/**
+ * megasas_enable_intr_ppc - Enables interrupts
+ * @regs: MFI register set
+ */
+static inline void
+megasas_enable_intr_ppc(struct megasas_register_set __iomem * regs)
+{
+ writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
+
+ writel(~0x80000004, &(regs)->outbound_intr_mask);
+
+ /* Dummy readl to force pci flush */
+ readl(&regs->outbound_intr_mask);
+}
+
+/**
+ * megasas_read_fw_status_reg_ppc - returns the current FW status value
+ * @regs: MFI register set
+ */
+static u32
+megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem *
regs)
+{
+ return readl(&(regs)->outbound_scratch_pad);
+}
+
+/**
+ * megasas_clear_interrupt_ppc - Check & clear interrupt
+ * @regs: MFI register set
+ */
+static int
+megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs)
+{
+ u32 status;
+ /*
+ * Check if it is our interrupt
+ */
+ status = readl(&regs->outbound_intr_status);
+
+ if (!(status & MFI_REPLY_1078_MESSAGE_INTERRUPT)) {
+ return 1;
+ }
+
+ /*
+ * Clear the interrupt by writing back the same value
+ */
+ writel(status, &regs->outbound_doorbell_clear);
+
+ return 0;
+}
+/**
+ * megasas_fire_cmd_ppc - Sends command to the FW
+ * @frame_phys_addr : Physical address of cmd
+ * @frame_count : Number of frames for the command
+ * @regs : MFI register set
+ */
+static inline void
+megasas_fire_cmd_ppc(dma_addr_t frame_phys_addr, u32 frame_count,
struct megasas_register_set __iomem *regs)
+{
+ writel((frame_phys_addr | (frame_count<<1))|1,
+ &(regs)->inbound_queue_port);
+}
+
+static struct megasas_instance_template megasas_instance_template_ppc =
{
+
+ .fire_cmd = megasas_fire_cmd_ppc,
+ .enable_intr = megasas_enable_intr_ppc,
+ .clear_intr = megasas_clear_intr_ppc,
+ .read_fw_status_reg = megasas_read_fw_status_reg_ppc,
+};
+
+/**
+* This is the end of set of functions & definitions
+* specific to ppc (deviceid : 0x62) controllers
+*/
+
+/**
* megasas_disable_intr - Disables interrupts
* @regs: MFI register set
*/
@@ -1607,7 +1693,17 @@ static int megasas_init_mfi(struct megas

reg_set = instance->reg_set;

- instance->instancet = &megasas_instance_template_xscale;
+ switch(instance->pdev->device)
+ {
+ case PCI_DEVICE_ID_LSI_SAS1078R:
+ instance->instancet = &megasas_instance_template_ppc;
+ break;
+ case PCI_DEVICE_ID_LSI_SAS1064R:
+ case PCI_DEVICE_ID_DELL_PERC5:
+ default:
+ instance->instancet = &megasas_instance_template_xscale;
+ break;
+ }

/*
* We expect the FW state to be READY
diff -uprN linux2.6.orig/drivers/scsi/megaraid/megaraid_sas.h
linux2.6/drivers/scsi/megaraid/megaraid_sas.h
--- linux2.6.orig/drivers/scsi/megaraid/megaraid_sas.h 2006-01-23
15:40:11.000000000 -0800
+++ linux2.6/drivers/scsi/megaraid/megaraid_sas.h 2006-01-23
15:42:12.000000000 -0800
@@ -20,7 +20,7 @@
*/
#define MEGASAS_VERSION "00.00.02.02"
#define MEGASAS_RELDATE "Jan 23, 2006"
-#define MEGASAS_EXT_VERSION "Mon Jan 23 14:09:01 PST 2006"
+#define MEGASAS_EXT_VERSION "Mon Jan 23 15:16:30 PST 2006"
/*
* =====================================
* MegaRAID SAS MFI firmware definitions
@@ -553,31 +553,46 @@ struct megasas_ctrl_info {
#define MFI_OB_INTR_STATUS_MASK 0x00000002
#define MFI_POLL_TIMEOUT_SECS 10

+#define MFI_REPLY_1078_MESSAGE_INTERRUPT 0x80000000
+#define PCI_DEVICE_ID_LSI_SAS1078R 0x00000062
+
struct megasas_register_set {
+ u32 reserved_0[4]; /*0000h*/

- u32 reserved_0[4]; /*0000h */
+ u32 inbound_msg_0; /*0010h*/
+ u32 inbound_msg_1; /*0014h*/
+ u32 outbound_msg_0; /*0018h*/
+ u32 outbound_msg_1; /*001Ch*/

- u32 inbound_msg_0; /*0010h */
- u32 inbound_msg_1; /*0014h */
- u32 outbound_msg_0; /*0018h */
- u32 outbound_msg_1; /*001Ch */
+ u32 inbound_doorbell; /*0020h*/
+ u32 inbound_intr_status; /*0024h*/
+ u32 inbound_intr_mask; /*0028h*/

- u32 inbound_doorbell; /*0020h */
- u32 inbound_intr_status; /*0024h */
- u32 inbound_intr_mask; /*0028h */
+ u32 outbound_doorbell; /*002Ch*/
+ u32 outbound_intr_status; /*0030h*/
+ u32 outbound_intr_mask; /*0034h*/

- u32 outbound_doorbell; /*002Ch */
- u32 outbound_intr_status; /*0030h */
- u32 outbound_intr_mask; /*0034h */
+ u32 reserved_1[2]; /*0038h*/

- u32 reserved_1[2]; /*0038h */
+ u32 inbound_queue_port; /*0040h*/
+ u32 outbound_queue_port; /*0044h*/

- u32 inbound_queue_port; /*0040h */
- u32 outbound_queue_port; /*0044h */
+ u32 reserved_2[22]; /*0048h*/

- u32 reserved_2; /*004Ch */
+ u32 outbound_doorbell_clear; /*00A0h*/

- u32 index_registers[1004]; /*0050h */
+ u32 reserved_3[3]; /*00A4h*/
+
+ u32 outbound_scratch_pad ; /*00B0h*/
+
+ u32 reserved_4[3]; /*00B4h*/
+
+ u32 inbound_low_queue_port ; /*00C0h*/
+
+ u32 inbound_high_queue_port ; /*00C4h*/
+
+ u32 reserved_5; /*00C8h*/
+ u32 index_registers[820]; /*00CCh*/

} __attribute__ ((packed));




diff -uprN linux2.6.orig/Documentation/scsi/ChangeLog.megaraid_sas linux2.6/Documentation/scsi/ChangeLog.megaraid_sas
--- linux2.6.orig/Documentation/scsi/ChangeLog.megaraid_sas 2006-01-23 15:08:40.000000000 -0800
+++ linux2.6/Documentation/scsi/ChangeLog.megaraid_sas 2006-01-23 15:53:46.000000000 -0800
@@ -1,3 +1,11 @@
+1 Release Date : Mon Jan 23 15:16:30 PST 2006 - Sumant Patro <Sumant.Patro@xxxxxxxx>
+2 Current Version : 00.00.02.02
+3 Older Version : 00.00.02.01
+
+i. Support for 1078 type (ppc IOP) controller, device id : 0x62 added. During initialisation, depending on the device id, the template members are intialised with function pointers specfic to the ppc or xscale controllers.
+
+ -Sumant Patro <Sumant.Patro@xxxxxxxx>
+
1 Release Date : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@xxxxxxxx>
2 Current Version : 00.00.02.02
3 Older Version : 00.00.02.01
diff -uprN linux2.6.orig/drivers/scsi/megaraid/megaraid_sas.c linux2.6/drivers/scsi/megaraid/megaraid_sas.c
--- linux2.6.orig/drivers/scsi/megaraid/megaraid_sas.c 2006-01-23 15:41:00.000000000 -0800
+++ linux2.6/drivers/scsi/megaraid/megaraid_sas.c 2006-01-23 15:41:49.000000000 -0800
@@ -60,6 +60,12 @@ static struct pci_device_id megasas_pci_
PCI_ANY_ID,
},
{
+ PCI_VENDOR_ID_LSI_LOGIC,
+ PCI_DEVICE_ID_LSI_SAS1078R, // ppc IOP
+ PCI_ANY_ID,
+ PCI_ANY_ID,
+ },
+ {
PCI_VENDOR_ID_DELL,
PCI_DEVICE_ID_DELL_PERC5, // xscale IOP
PCI_ANY_ID,
@@ -199,6 +205,86 @@ static struct megasas_instance_template
*/

/**
+* The following functions are defined for ppc (deviceid : 0x62)
+* controllers
+*/
+
+/**
+ * megasas_enable_intr_ppc - Enables interrupts
+ * @regs: MFI register set
+ */
+static inline void
+megasas_enable_intr_ppc(struct megasas_register_set __iomem * regs)
+{
+ writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
+
+ writel(~0x80000004, &(regs)->outbound_intr_mask);
+
+ /* Dummy readl to force pci flush */
+ readl(&regs->outbound_intr_mask);
+}
+
+/**
+ * megasas_read_fw_status_reg_ppc - returns the current FW status value
+ * @regs: MFI register set
+ */
+static u32
+megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem * regs)
+{
+ return readl(&(regs)->outbound_scratch_pad);
+}
+
+/**
+ * megasas_clear_interrupt_ppc - Check & clear interrupt
+ * @regs: MFI register set
+ */
+static int
+megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs)
+{
+ u32 status;
+ /*
+ * Check if it is our interrupt
+ */
+ status = readl(&regs->outbound_intr_status);
+
+ if (!(status & MFI_REPLY_1078_MESSAGE_INTERRUPT)) {
+ return 1;
+ }
+
+ /*
+ * Clear the interrupt by writing back the same value
+ */
+ writel(status, &regs->outbound_doorbell_clear);
+
+ return 0;
+}
+/**
+ * megasas_fire_cmd_ppc - Sends command to the FW
+ * @frame_phys_addr : Physical address of cmd
+ * @frame_count : Number of frames for the command
+ * @regs : MFI register set
+ */
+static inline void
+megasas_fire_cmd_ppc(dma_addr_t frame_phys_addr, u32 frame_count, struct megasas_register_set __iomem *regs)
+{
+ writel((frame_phys_addr | (frame_count<<1))|1,
+ &(regs)->inbound_queue_port);
+}
+
+static struct megasas_instance_template megasas_instance_template_ppc = {
+
+ .fire_cmd = megasas_fire_cmd_ppc,
+ .enable_intr = megasas_enable_intr_ppc,
+ .clear_intr = megasas_clear_intr_ppc,
+ .read_fw_status_reg = megasas_read_fw_status_reg_ppc,
+};
+
+/**
+* This is the end of set of functions & definitions
+* specific to ppc (deviceid : 0x62) controllers
+*/
+
+/**
* megasas_disable_intr - Disables interrupts
* @regs: MFI register set
*/
@@ -1607,7 +1693,17 @@ static int megasas_init_mfi(struct megas

reg_set = instance->reg_set;

- instance->instancet = &megasas_instance_template_xscale;
+ switch(instance->pdev->device)
+ {
+ case PCI_DEVICE_ID_LSI_SAS1078R:
+ instance->instancet = &megasas_instance_template_ppc;
+ break;
+ case PCI_DEVICE_ID_LSI_SAS1064R:
+ case PCI_DEVICE_ID_DELL_PERC5:
+ default:
+ instance->instancet = &megasas_instance_template_xscale;
+ break;
+ }

/*
* We expect the FW state to be READY
diff -uprN linux2.6.orig/drivers/scsi/megaraid/megaraid_sas.h linux2.6/drivers/scsi/megaraid/megaraid_sas.h
--- linux2.6.orig/drivers/scsi/megaraid/megaraid_sas.h 2006-01-23 15:40:11.000000000 -0800
+++ linux2.6/drivers/scsi/megaraid/megaraid_sas.h 2006-01-23 15:42:12.000000000 -0800
@@ -20,7 +20,7 @@
*/
#define MEGASAS_VERSION "00.00.02.02"
#define MEGASAS_RELDATE "Jan 23, 2006"
-#define MEGASAS_EXT_VERSION "Mon Jan 23 14:09:01 PST 2006"
+#define MEGASAS_EXT_VERSION "Mon Jan 23 15:16:30 PST 2006"
/*
* =====================================
* MegaRAID SAS MFI firmware definitions
@@ -553,31 +553,46 @@ struct megasas_ctrl_info {
#define MFI_OB_INTR_STATUS_MASK 0x00000002
#define MFI_POLL_TIMEOUT_SECS 10

+#define MFI_REPLY_1078_MESSAGE_INTERRUPT 0x80000000
+#define PCI_DEVICE_ID_LSI_SAS1078R 0x00000062
+
struct megasas_register_set {
+ u32 reserved_0[4]; /*0000h*/

- u32 reserved_0[4]; /*0000h */
+ u32 inbound_msg_0; /*0010h*/
+ u32 inbound_msg_1; /*0014h*/
+ u32 outbound_msg_0; /*0018h*/
+ u32 outbound_msg_1; /*001Ch*/

- u32 inbound_msg_0; /*0010h */
- u32 inbound_msg_1; /*0014h */
- u32 outbound_msg_0; /*0018h */
- u32 outbound_msg_1; /*001Ch */
+ u32 inbound_doorbell; /*0020h*/
+ u32 inbound_intr_status; /*0024h*/
+ u32 inbound_intr_mask; /*0028h*/

- u32 inbound_doorbell; /*0020h */
- u32 inbound_intr_status; /*0024h */
- u32 inbound_intr_mask; /*0028h */
+ u32 outbound_doorbell; /*002Ch*/
+ u32 outbound_intr_status; /*0030h*/
+ u32 outbound_intr_mask; /*0034h*/

- u32 outbound_doorbell; /*002Ch */
- u32 outbound_intr_status; /*0030h */
- u32 outbound_intr_mask; /*0034h */
+ u32 reserved_1[2]; /*0038h*/

- u32 reserved_1[2]; /*0038h */
+ u32 inbound_queue_port; /*0040h*/
+ u32 outbound_queue_port; /*0044h*/

- u32 inbound_queue_port; /*0040h */
- u32 outbound_queue_port; /*0044h */
+ u32 reserved_2[22]; /*0048h*/

- u32 reserved_2; /*004Ch */
+ u32 outbound_doorbell_clear; /*00A0h*/

- u32 index_registers[1004]; /*0050h */
+ u32 reserved_3[3]; /*00A4h*/
+
+ u32 outbound_scratch_pad ; /*00B0h*/
+
+ u32 reserved_4[3]; /*00B4h*/
+
+ u32 inbound_low_queue_port ; /*00C0h*/
+
+ u32 inbound_high_queue_port ; /*00C4h*/
+
+ u32 reserved_5; /*00C8h*/
+ u32 index_registers[820]; /*00CCh*/

} __attribute__ ((packed));