James/Linux-scsi,
The following patch adds struct megasas_instance_template changes to
the megaraid_sas_driver, and changes all code to use the new instance
entries:
irqreturn_t (*service_isr )(int irq, void *devp);
void (*tasklet)(unsigned long);
u32 (*init_adapter)(struct megasas_instance *);
u32 (*build_and_issue_cmd) (struct megasas_instance *, struct scsi_cmnd *);
void (*issue_dcmd) (struct megasas_instance *instance,
struct megasas_cmd *cmd);
Signed-off-by: Adam Radford <aradford@xxxxxxxxx>
Note: The patch has been included in-line below, and also as an
attachment in case Gmail hoses the patch.
diff -Naur linux-2.6.37-rc5.old/drivers/scsi/megaraid/megaraid_sas_base.c
linux-2.6.37-rc5.new/drivers/scsi/megaraid/megaraid_sas_base.c
--- linux-2.6.37-rc5.old/drivers/scsi/megaraid/megaraid_sas_base.c 2010-12-14
16:20:27.000000000 -0800
+++ linux-2.6.37-rc5.new/drivers/scsi/megaraid/megaraid_sas_base.c 2010-12-14
16:59:51.000000000 -0800
@@ -131,6 +131,20 @@
static void
megasas_complete_cmd(struct megasas_instance *instance, struct
megasas_cmd *cmd,
u8 alt_status);
+static irqreturn_t megasas_isr(int irq, void *devp);
+static u32
+megasas_init_adapter_mfi(struct megasas_instance *instance);
+u32
+megasas_build_and_issue_cmd(struct megasas_instance *instance,
+ struct scsi_cmnd *scmd);
+static void megasas_complete_cmd_dpc(unsigned long instance_addr);
+
+void
+megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
+{
+ instance->instancet->fire_cmd(instance,
+ cmd->frame_phys_addr, 0, instance->reg_set);
+}
/**
* megasas_get_cmd - Get a command from the free pool
@@ -334,6 +348,11 @@
.read_fw_status_reg = megasas_read_fw_status_reg_xscale,
.adp_reset = megasas_adp_reset_xscale,
.check_reset = megasas_check_reset_xscale,
+ .service_isr = megasas_isr,
+ .tasklet = megasas_complete_cmd_dpc,
+ .init_adapter = megasas_init_adapter_mfi,
+ .build_and_issue_cmd = megasas_build_and_issue_cmd,
+ .issue_dcmd = megasas_issue_dcmd,
};
/**
@@ -460,6 +479,11 @@
.read_fw_status_reg = megasas_read_fw_status_reg_ppc,
.adp_reset = megasas_adp_reset_ppc,
.check_reset = megasas_check_reset_ppc,
+ .service_isr = megasas_isr,
+ .tasklet = megasas_complete_cmd_dpc,
+ .init_adapter = megasas_init_adapter_mfi,
+ .build_and_issue_cmd = megasas_build_and_issue_cmd,
+ .issue_dcmd = megasas_issue_dcmd,
};
/**
@@ -581,6 +605,11 @@
.read_fw_status_reg = megasas_read_fw_status_reg_skinny,
.adp_reset = megasas_adp_reset_skinny,
.check_reset = megasas_check_reset_skinny,
+ .service_isr = megasas_isr,
+ .tasklet = megasas_complete_cmd_dpc,
+ .init_adapter = megasas_init_adapter_mfi,
+ .build_and_issue_cmd = megasas_build_and_issue_cmd,
+ .issue_dcmd = megasas_issue_dcmd,
};
@@ -755,6 +784,11 @@
.read_fw_status_reg = megasas_read_fw_status_reg_gen2,
.adp_reset = megasas_adp_reset_gen2,
.check_reset = megasas_check_reset_gen2,
+ .service_isr = megasas_isr,
+ .tasklet = megasas_complete_cmd_dpc,
+ .init_adapter = megasas_init_adapter_mfi,
+ .build_and_issue_cmd = megasas_build_and_issue_cmd,
+ .issue_dcmd = megasas_issue_dcmd,
};
/**
@@ -1339,6 +1373,51 @@
printk(KERN_ERR "megasas[%d]: Dumping Done.\n\n",instance->host->host_no);
}
+u32
+megasas_build_and_issue_cmd(struct megasas_instance *instance,
+ struct scsi_cmnd *scmd)
+{
+ struct megasas_cmd *cmd;
+ u32 frame_count;
+
+ cmd = megasas_get_cmd(instance);
+ if (!cmd)
+ return SCSI_MLQUEUE_HOST_BUSY;
+
+ /*
+ * Logical drive command
+ */
+ if (megasas_is_ldio(scmd))
+ frame_count = megasas_build_ldio(instance, scmd, cmd);
+ else
+ frame_count = megasas_build_dcdb(instance, scmd, cmd);
+
+ if (!frame_count)
+ goto out_return_cmd;
+
+ cmd->scmd = scmd;
+ scmd->SCp.ptr = (char *)cmd;
+
+ /*
+ * Issue the command to the FW
+ */
+ atomic_inc(&instance->fw_outstanding);
+
+ instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
+ cmd->frame_count-1, instance->reg_set);
+ /*
+ * Check if we have pend cmds to be completed
+ */
+ if (poll_mode_io && atomic_read(&instance->fw_outstanding))
+ tasklet_schedule(&instance->isr_tasklet);
+
+ return 0;
+out_return_cmd:
+ megasas_return_cmd(instance, cmd);
+ return 1;
+}
+
+
/**
* megasas_queue_command - Queue entry point
* @scmd: SCSI command to be queued
@@ -1347,8 +1426,6 @@
static int
megasas_queue_command_lck(struct scsi_cmnd *scmd, void (*done)
(struct scsi_cmnd *))
{
- u32 frame_count;
- struct megasas_cmd *cmd;
struct megasas_instance *instance;
unsigned long flags;
@@ -1387,42 +1464,13 @@
break;
}
- cmd = megasas_get_cmd(instance);
- if (!cmd)
+ if (instance->instancet->build_and_issue_cmd(instance, scmd)) {
+ printk(KERN_ERR "megasas: Err returned from build_and_issue_cmd\n");
return SCSI_MLQUEUE_HOST_BUSY;
-
- /*
- * Logical drive command
- */
- if (megasas_is_ldio(scmd))
- frame_count = megasas_build_ldio(instance, scmd, cmd);
- else
- frame_count = megasas_build_dcdb(instance, scmd, cmd);
-
- if (!frame_count)
- goto out_return_cmd;
-
- cmd->scmd = scmd;
- scmd->SCp.ptr = (char *)cmd;
-
- /*
- * Issue the command to the FW
- */
- atomic_inc(&instance->fw_outstanding);
-
- instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
- cmd->frame_count-1, instance->reg_set);
- /*
- * Check if we have pend cmds to be completed
- */
- if (poll_mode_io && atomic_read(&instance->fw_outstanding))
- tasklet_schedule(&instance->isr_tasklet);
-
+ }
return 0;
- out_return_cmd:
- megasas_return_cmd(instance, cmd);
out_done:
done(scmd);
return 0;
@@ -3221,69 +3269,15 @@
jiffies + MEGASAS_COMPLETION_TIMER_INTERVAL);
}
-/**
- * megasas_init_mfi - Initializes the FW
- * @instance: Adapter soft state
- *
- * This is the main function for initializing MFI firmware.
- */
-static int megasas_init_mfi(struct megasas_instance *instance)
+static u32
+megasas_init_adapter_mfi(struct megasas_instance *instance)
{
+ struct megasas_register_set __iomem *reg_set;
u32 context_sz;
u32 reply_q_sz;
- u32 max_sectors_1;
- u32 max_sectors_2;
- u32 tmp_sectors;
- struct megasas_register_set __iomem *reg_set;
- struct megasas_ctrl_info *ctrl_info;
- unsigned long bar_list;
-
- /* Find first memory bar */
- bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
- instance->bar = find_first_bit(&bar_list, sizeof(unsigned long));
- instance->base_addr = pci_resource_start(instance->pdev, instance->bar);
- if (pci_request_selected_regions(instance->pdev, instance->bar,
- "megasas: LSI")) {
- printk(KERN_DEBUG "megasas: IO memory region busy!\n");
- return -EBUSY;
- }
-
- instance->reg_set = ioremap_nocache(instance->base_addr, 8192);
-
- if (!instance->reg_set) {
- printk(KERN_DEBUG "megasas: Failed to map IO mem\n");
- goto fail_ioremap;
- }
reg_set = instance->reg_set;
- switch(instance->pdev->device)
- {
- case PCI_DEVICE_ID_LSI_SAS1078R:
- case PCI_DEVICE_ID_LSI_SAS1078DE:
- instance->instancet = &megasas_instance_template_ppc;
- break;
- case PCI_DEVICE_ID_LSI_SAS1078GEN2:
- case PCI_DEVICE_ID_LSI_SAS0079GEN2:
- instance->instancet = &megasas_instance_template_gen2;
- break;
- case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
- case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
- instance->instancet = &megasas_instance_template_skinny;
- 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
- */
- if (megasas_transition_to_ready(instance))
- goto fail_ready_state;
-
/*
* Get various operational parameters from status register
*/
@@ -3337,6 +3331,87 @@
if (instance->fw_support_ieee)
instance->flag_ieee = 1;
+ return 0;
+
+fail_fw_init:
+
+ pci_free_consistent(instance->pdev, reply_q_sz,
+ instance->reply_queue, instance->reply_queue_h);
+fail_reply_queue:
+ megasas_free_cmds(instance);
+
+fail_alloc_cmds:
+ iounmap(instance->reg_set);
+ return 1;
+}
+
+/**
+ * megasas_init_fw - Initializes the FW
+ * @instance: Adapter soft state
+ *
+ * This is the main function for initializing firmware
+ */
+
+static int megasas_init_fw(struct megasas_instance *instance)
+{
+ u32 max_sectors_1;
+ u32 max_sectors_2;
+ u32 tmp_sectors;
+ struct megasas_register_set __iomem *reg_set;
+ struct megasas_ctrl_info *ctrl_info;
+ unsigned long bar_list;
+
+ /* Find first memory bar */
+ bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
+ instance->bar = find_first_bit(&bar_list, sizeof(unsigned long));
+ instance->base_addr = pci_resource_start(instance->pdev, instance->bar);
+ if (pci_request_selected_regions(instance->pdev, instance->bar,
+ "megasas: LSI")) {
+ printk(KERN_DEBUG "megasas: IO memory region busy!\n");
+ return -EBUSY;
+ }
+
+ instance->reg_set = ioremap_nocache(instance->base_addr, 8192);
+
+ if (!instance->reg_set) {
+ printk(KERN_DEBUG "megasas: Failed to map IO mem\n");
+ goto fail_ioremap;
+ }
+
+ reg_set = instance->reg_set;
+
+ switch (instance->pdev->device) {
+ case PCI_DEVICE_ID_LSI_SAS1078R:
+ case PCI_DEVICE_ID_LSI_SAS1078DE:
+ instance->instancet = &megasas_instance_template_ppc;
+ break;
+ case PCI_DEVICE_ID_LSI_SAS1078GEN2:
+ case PCI_DEVICE_ID_LSI_SAS0079GEN2:
+ instance->instancet = &megasas_instance_template_gen2;
+ break;
+ case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
+ case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
+ instance->instancet = &megasas_instance_template_skinny;
+ 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
+ */
+ if (megasas_transition_to_ready(instance))
+ goto fail_ready_state;
+
+ /* Get operational params, sge flags, send init cmd to controller */
+ if (instance->instancet->init_adapter(instance))
+ return -ENODEV;
+
+ printk(KERN_ERR "megasas: INIT adapter done\n");
+
/** for passthrough
* the following function will get the PD LIST.
*/
@@ -3392,15 +3467,7 @@
MEGASAS_COMPLETION_TIMER_INTERVAL);
return 0;
- fail_fw_init:
-
- pci_free_consistent(instance->pdev, reply_q_sz,
- instance->reply_queue, instance->reply_queue_h);
- fail_reply_queue:
- megasas_free_cmds(instance);
-
- fail_alloc_cmds:
- fail_ready_state:
+fail_ready_state:
iounmap(instance->reg_set);
fail_ioremap:
@@ -3855,7 +3922,7 @@
/*
* Initialize MFI Firmware
*/
- if (megasas_init_mfi(instance))
+ if (megasas_init_fw(instance))
goto fail_init_mfi;
/* Try to enable MSI-X */
@@ -3920,7 +3987,6 @@
instance->pdev->irq, instance);
if (instance->msi_flag)
pci_disable_msix(instance->pdev);
- megasas_release_mfi(instance);
fail_irq:
fail_init_mfi:
@@ -3930,9 +3996,11 @@
instance->evt_detail,
instance->evt_detail_h);
- if (instance->producer)
+ if (instance->producer) {
pci_free_consistent(pdev, sizeof(u32), instance->producer,
instance->producer_h);
+ megasas_release_mfi(instance);
+ }
if (instance->consumer)
pci_free_consistent(pdev, sizeof(u32), instance->consumer,
instance->consumer_h);
diff -Naur linux-2.6.37-rc5.old/drivers/scsi/megaraid/megaraid_sas.h
linux-2.6.37-rc5.new/drivers/scsi/megaraid/megaraid_sas.h
--- linux-2.6.37-rc5.old/drivers/scsi/megaraid/megaraid_sas.h 2010-12-14
16:20:27.000000000 -0800
+++ linux-2.6.37-rc5.new/drivers/scsi/megaraid/megaraid_sas.h 2010-12-14
16:24:28.000000000 -0800
@@ -1364,6 +1364,13 @@
struct megasas_register_set __iomem *);
int (*check_reset)(struct megasas_instance *, \
struct megasas_register_set __iomem *);
+ irqreturn_t (*service_isr)(int irq, void *devp);
+ void (*tasklet)(unsigned long);
+ u32 (*init_adapter)(struct megasas_instance *);
+ u32 (*build_and_issue_cmd) (struct megasas_instance *,
+ struct scsi_cmnd *);
+ void (*issue_dcmd) (struct megasas_instance *instance,
+ struct megasas_cmd *cmd);
};
#define MEGASAS_IS_LOGICAL(scp) \
Attachment:
megaraid_sas.patch5
Description: Binary data
