From f26ac3a1a5108df2bd1e30ee1c8bb6f7664929b5 Mon Sep 17 00:00:00 2001 From: "Sumit.Saxena@avagotech.com" Date: Thu, 23 Apr 2015 16:30:54 +0530 Subject: [PATCH] megaraid_sas : Move controller's queue depth calculation in adapter specific function Signed-off-by: Kashyap Desai Signed-off-by: Sumit Saxena Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Signed-off-by: James Bottomley --- drivers/scsi/megaraid/megaraid_sas.h | 1 + drivers/scsi/megaraid/megaraid_sas_base.c | 39 ++++++++------------- drivers/scsi/megaraid/megaraid_sas_fusion.c | 9 +++++ 3 files changed, 25 insertions(+), 24 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index bdcf2b69778d..762de8ada155 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -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 /* diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 1bd32721131d..dee61e8348fb 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -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) diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index d38f85e6f26e..3e9dd6a7d7d5 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -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 -- 2.39.5