diff options
| author | Sasikumar Chandrasekaran <sasikumar.pc@broadcom.com> | 2017-01-11 02:20:44 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-01-11 07:15:45 +0300 |
| commit | 2493c67e518c772a573c3b1ad02e7ced5b53f6ca (patch) | |
| tree | ffcdf5ae3fbcd0415dd59a569e1c1eb54261bacf | |
| parent | 45f4f2eb3da3cbff02c3d77c784c81320c733056 (diff) | |
| download | linux-2493c67e518c772a573c3b1ad02e7ced5b53f6ca.tar.xz | |
scsi: megaraid_sas: 128 MSIX Support
SAS3.5 Generic Megaraid based Controllers will have the support for 128 MSI-X vectors,
resulting in the need to support 128 reply queues
Signed-off-by: Sasikumar Chandrasekaran <sasikumar.pc@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.h | 1 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_base.c | 25 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.c | 4 |
3 files changed, 21 insertions, 9 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index cb82195a8be1..36aac88571fc 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -2148,6 +2148,7 @@ struct megasas_instance { bool dev_handle; bool fw_sync_cache_support; bool is_ventura; + bool msix_combined; }; struct MR_LD_VF_MAP { u32 size; diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index e00b3dece088..6801a449d236 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -5072,13 +5072,7 @@ static int megasas_init_fw(struct megasas_instance *instance) goto fail_ready_state; } - /* - * MSI-X host index 0 is common for all adapter. - * It is used for all MPT based Adapters. - */ - instance->reply_post_host_index_addr[0] = - (u32 __iomem *)((u8 __iomem *)instance->reg_set + - MPI2_REPLY_POST_HOST_INDEX_OFFSET); + /* Check if MSI-X is supported while in ready state */ msix_enable = (instance->instancet->read_fw_status_reg(reg_set) & @@ -5098,6 +5092,9 @@ static int megasas_init_fw(struct megasas_instance *instance) instance->msix_vectors = ((scratch_pad_2 & MR_MAX_REPLY_QUEUES_EXT_OFFSET) >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; + if (instance->msix_vectors > 16) + instance->msix_combined = true; + if (rdpq_enable) instance->is_rdpq = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ? 1 : 0; @@ -5131,6 +5128,20 @@ static int megasas_init_fw(struct megasas_instance *instance) else instance->msix_vectors = 0; } + /* + * MSI-X host index 0 is common for all adapter. + * It is used for all MPT based Adapters. + */ + if (instance->msix_combined) { + instance->reply_post_host_index_addr[0] = + (u32 *)((u8 *)instance->reg_set + + MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET); + } else { + instance->reply_post_host_index_addr[0] = + (u32 *)((u8 *)instance->reg_set + + MPI2_REPLY_POST_HOST_INDEX_OFFSET); + } + i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY); if (i < 0) goto fail_setup_irqs; diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 8d7a39782512..413e20308871 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -2391,7 +2391,7 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex) * pending to be completed */ if (threshold_reply_count >= THRESHOLD_REPLY_COUNT) { - if (fusion->adapter_type == INVADER_SERIES) + if (instance->msix_combined) writel(((MSIxIndex & 0x7) << 24) | fusion->last_reply_idx[MSIxIndex], instance->reply_post_host_index_addr[MSIxIndex/8]); @@ -2407,7 +2407,7 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex) return IRQ_NONE; wmb(); - if (fusion->adapter_type == INVADER_SERIES) + if (instance->msix_combined) writel(((MSIxIndex & 0x7) << 24) | fusion->last_reply_idx[MSIxIndex], instance->reply_post_host_index_addr[MSIxIndex/8]); |