diff options
| author | Yang, Bo <Bo.Yang@lsi.com> | 2009-10-06 22:40:58 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2009-10-29 18:03:20 +0100 |
| commit | 7bebf5c79cb62766c76c6c1b9c77b86496fd363e (patch) | |
| tree | 2b3fa5e3f17087ab1677ac25ab2e955d5a4b6191 /drivers | |
| parent | [SCSI] megaraid_sas: report system PDs to OS (diff) | |
| download | linux-7bebf5c79cb62766c76c6c1b9c77b86496fd363e.tar.xz linux-7bebf5c79cb62766c76c6c1b9c77b86496fd363e.zip | |
[SCSI] megaraid_sas: allocate the application cmds to sas2 controller
MegaRAID SAS2 controller ioctl can't use 32 cmd for applications.
Driver need to divide different number of cmds to IO and application.
Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.c | 24 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.h | 1 |
2 files changed, 22 insertions, 3 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index 9967ee72a967..5afd65121725 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -1239,7 +1239,14 @@ static void megasas_complete_cmd_dpc(unsigned long instance_addr) spin_lock_irqsave(instance->host->host_lock, flags); instance->flag &= ~MEGASAS_FW_BUSY; - instance->host->can_queue = + if ((instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + instance->host->can_queue = + instance->max_fw_cmds - MEGASAS_SKINNY_INT_CMDS; + } else + instance->host->can_queue = instance->max_fw_cmds - MEGASAS_INT_CMDS; spin_unlock_irqrestore(instance->host->host_lock, flags); @@ -2774,7 +2781,13 @@ static int megasas_io_attach(struct megasas_instance *instance) */ host->irq = instance->pdev->irq; host->unique_id = instance->unique_id; - host->can_queue = instance->max_fw_cmds - MEGASAS_INT_CMDS; + if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + host->can_queue = + instance->max_fw_cmds - MEGASAS_SKINNY_INT_CMDS; + } else + host->can_queue = + instance->max_fw_cmds - MEGASAS_INT_CMDS; host->this_id = instance->init_id; host->sg_tablesize = instance->max_num_sge; host->max_sectors = instance->max_sectors_per_req; @@ -2909,7 +2922,6 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) spin_lock_init(&poll_aen_lock); mutex_init(&instance->aen_mutex); - sema_init(&instance->ioctl_sem, MEGASAS_INT_CMDS); /* * Initialize PCI related and misc parameters @@ -2919,6 +2931,12 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) instance->unique_id = pdev->bus->number << 8 | pdev->devfn; instance->init_id = MEGASAS_DEFAULT_INIT_ID; + if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); + } else + sema_init(&instance->ioctl_sem, MEGASAS_INT_CMDS); + megasas_dbg_lvl = 0; instance->flag = 0; instance->unload = 0; diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index 8ac6b2659c12..4c78cd32e757 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -655,6 +655,7 @@ struct megasas_ctrl_info { * is shown below */ #define MEGASAS_INT_CMDS 32 +#define MEGASAS_SKINNY_INT_CMDS 5 /* * FW can accept both 32 and 64 bit SGLs. We want to allocate 32/64 bit |