From 9ad18a9c0c972b618ef68ca8c4a3ff7e7d0b49eb Mon Sep 17 00:00:00 2001 From: Shivasharan S Date: Thu, 19 Oct 2017 02:48:57 -0700 Subject: [PATCH] scsi: megaraid_sas: remove instance->ctrl_info Re-use the pre-allocated ctrl_info DMA buffer. Signed-off-by: Kashyap Desai Signed-off-by: Shivasharan S Signed-off-by: Martin K. Petersen --- drivers/scsi/megaraid/megaraid_sas.h | 1 - drivers/scsi/megaraid/megaraid_sas_base.c | 43 ++++++++--------------- 2 files changed, 14 insertions(+), 30 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index 80ba77b4b9e2..83427b541629 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -2231,7 +2231,6 @@ struct megasas_instance { /* Ptr to hba specific information */ void *ctrl_context; - struct megasas_ctrl_info *ctrl_info; unsigned int msix_vectors; struct megasas_irq_context irq_context[MEGASAS_MAX_MSIX_QUEUES]; u64 map_id; diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 19649ca11a1f..b30e80cf4c25 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -4545,9 +4545,9 @@ static void megasas_update_ext_vd_details(struct megasas_instance *instance) return; instance->supportmax256vd = - instance->ctrl_info->adapterOperations3.supportMaxExtLDs; + instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs; /* Below is additional check to address future FW enhancement */ - if (instance->ctrl_info->max_lds > 64) + if (instance->ctrl_info_buf->max_lds > 64) instance->supportmax256vd = 1; instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS @@ -4605,11 +4605,8 @@ megasas_get_ctrl_info(struct megasas_instance *instance) struct megasas_cmd *cmd; struct megasas_dcmd_frame *dcmd; struct megasas_ctrl_info *ci; - struct megasas_ctrl_info *ctrl_info; dma_addr_t ci_h = 0; - ctrl_info = instance->ctrl_info; - ci = instance->ctrl_info_buf; ci_h = instance->ctrl_info_buf_h; @@ -4645,14 +4642,13 @@ megasas_get_ctrl_info(struct megasas_instance *instance) switch (ret) { case DCMD_SUCCESS: - memcpy(ctrl_info, ci, sizeof(struct megasas_ctrl_info)); /* Save required controller information in * CPU endianness format. */ - le32_to_cpus((u32 *)&ctrl_info->properties.OnOffProperties); - le32_to_cpus((u32 *)&ctrl_info->adapterOperations2); - le32_to_cpus((u32 *)&ctrl_info->adapterOperations3); - le16_to_cpus((u16 *)&ctrl_info->adapter_operations4); + le32_to_cpus((u32 *)&ci->properties.OnOffProperties); + le32_to_cpus((u32 *)&ci->adapterOperations2); + le32_to_cpus((u32 *)&ci->adapterOperations3); + le16_to_cpus((u16 *)&ci->adapter_operations4); /* Update the latest Ext VD info. * From Init path, store current firmware details. @@ -4661,21 +4657,21 @@ megasas_get_ctrl_info(struct megasas_instance *instance) */ megasas_update_ext_vd_details(instance); instance->use_seqnum_jbod_fp = - ctrl_info->adapterOperations3.useSeqNumJbodFP; + ci->adapterOperations3.useSeqNumJbodFP; instance->support_morethan256jbod = - ctrl_info->adapter_operations4.support_pd_map_target_id; + ci->adapter_operations4.support_pd_map_target_id; /*Check whether controller is iMR or MR */ - instance->is_imr = (ctrl_info->memory_size ? 0 : 1); + instance->is_imr = (ci->memory_size ? 0 : 1); dev_info(&instance->pdev->dev, "controller type\t: %s(%dMB)\n", instance->is_imr ? "iMR" : "MR", - le16_to_cpu(ctrl_info->memory_size)); + le16_to_cpu(ci->memory_size)); instance->disableOnlineCtrlReset = - ctrl_info->properties.OnOffProperties.disableOnlineCtrlReset; + ci->properties.OnOffProperties.disableOnlineCtrlReset; instance->secure_jbod_support = - ctrl_info->adapterOperations3.supportSecurityonJBOD; + ci->adapterOperations3.supportSecurityonJBOD; dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", @@ -5063,7 +5059,7 @@ megasas_setup_jbod_map(struct megasas_instance *instance) (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1)); if (reset_devices || !fusion || - !instance->ctrl_info->adapterOperations3.useSeqNumJbodFP) { + !instance->ctrl_info_buf->adapterOperations3.useSeqNumJbodFP) { dev_info(&instance->pdev->dev, "Jbod map is not supported %s %d\n", __func__, __LINE__); @@ -5277,11 +5273,6 @@ static int megasas_init_fw(struct megasas_instance *instance) tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, (unsigned long)instance); - instance->ctrl_info = kzalloc(sizeof(struct megasas_ctrl_info), - GFP_KERNEL); - if (instance->ctrl_info == NULL) - goto fail_init_adapter; - /* * Below are default value for legacy Firmware. * non-fusion based controllers @@ -5370,7 +5361,7 @@ static int megasas_init_fw(struct megasas_instance *instance) * to calculate max_sectors_1. So the number ended up as zero always. */ tmp_sectors = 0; - ctrl_info = instance->ctrl_info; + ctrl_info = instance->ctrl_info_buf; max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * le16_to_cpu(ctrl_info->max_strips_per_io); @@ -5485,8 +5476,6 @@ fail_setup_irqs: pci_free_irq_vectors(instance->pdev); instance->msix_vectors = 0; fail_ready_state: - kfree(instance->ctrl_info); - instance->ctrl_info = NULL; iounmap(instance->reg_set); fail_ioremap: @@ -6341,8 +6330,6 @@ static int megasas_probe_one(struct pci_dev *pdev, instance->host = host; instance->unique_id = pdev->bus->number << 8 | pdev->devfn; instance->init_id = MEGASAS_DEFAULT_INIT_ID; - instance->ctrl_info = NULL; - if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) @@ -6848,8 +6835,6 @@ skip_firing_dcmds: megasas_release_mfi(instance); } - kfree(instance->ctrl_info); - if (instance->vf_affiliation) pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION), -- 2.30.2