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megaraid_sas : Move controller's queue depth calculation in adapter specific function 

Signed-off-by: Kashyap Desai <kashyap.desai@avagotech.com>
Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Sumit.Saxena@avagotech.com 2015-04-23 16:30:54 +05:30 committed by James Bottomley
parent 4a5c814d93
commit f26ac3a1a5
3 changed files with 25 additions and 24 deletions
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1
drivers/scsi/megaraid/megaraid_sas.h
View File

@ -1084,6 +1084,7 @@ enum MR_SCSI_CMD_TYPE {
#define MEGASAS_SKINNY_INT_CMDS 5
#define MEGASAS_FUSION_INTERNAL_CMDS 5
#define MEGASAS_FUSION_IOCTL_CMDS 3
#define MEGASAS_MFI_IOCTL_CMDS 27
#define MEGASAS_MAX_MSIX_QUEUES 128
/*

39
drivers/scsi/megaraid/megaraid_sas_base.c
View File

@ -4353,6 +4353,21 @@ megasas_init_adapter_mfi(struct megasas_instance *instance)
instance->max_mfi_cmds = instance->max_fw_cmds;
instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >>
0x10;
/*
* For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
* are reserved for IOCTL + driver's internal DCMDs.
*/
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
(instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
instance->max_scsi_cmds = (instance->max_fw_cmds -
MEGASAS_SKINNY_INT_CMDS);
sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
} else {
instance->max_scsi_cmds = (instance->max_fw_cmds -
MEGASAS_INT_CMDS);
sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));
}
/*
* Create a pool of commands
*/
@ -4788,30 +4803,6 @@ static int megasas_init_fw(struct megasas_instance *instance)
if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
instance->max_sectors_per_req = tmp_sectors;
/*
* 1. For fusion adapters, 3 commands for IOCTL and 5 commands
* for driver's internal DCMDs.
* 2. For MFI skinny adapters, 5 commands for IOCTL + driver's
* internal DCMDs.
* 3. For rest of MFI adapters, 27 commands reserved for IOCTLs
* and 5 commands for drivers's internal DCMD.
*/
if (instance->ctrl_context) {
instance->max_scsi_cmds = instance->max_fw_cmds -
(MEGASAS_FUSION_INTERNAL_CMDS +
MEGASAS_FUSION_IOCTL_CMDS);
sema_init(&instance->ioctl_sem, MEGASAS_FUSION_IOCTL_CMDS);
} else if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
(instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
instance->max_scsi_cmds = instance->max_fw_cmds -
MEGASAS_SKINNY_INT_CMDS;
sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
} else {
instance->max_scsi_cmds = instance->max_fw_cmds -
MEGASAS_INT_CMDS;
sema_init(&instance->ioctl_sem, (MEGASAS_INT_CMDS - 5));
}
/* Check for valid throttlequeuedepth module parameter */
if (throttlequeuedepth &&
throttlequeuedepth <= instance->max_scsi_cmds)

9
drivers/scsi/megaraid/megaraid_sas_fusion.c
View File

@ -1060,6 +1060,15 @@ megasas_init_adapter_fusion(struct megasas_instance *instance)
for (i = 0 ; i < count; i++)
fusion->last_reply_idx[i] = 0;
/*
* For fusion adapters, 3 commands for IOCTL and 5 commands
* for driver's internal DCMDs.
*/
instance->max_scsi_cmds = instance->max_fw_cmds -
(MEGASAS_FUSION_INTERNAL_CMDS +
MEGASAS_FUSION_IOCTL_CMDS);
sema_init(&instance->ioctl_sem, MEGASAS_FUSION_IOCTL_CMDS);
/*
* Allocate memory for descriptors
* Create a pool of commands