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| author | Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | 2017-02-10 11:59:01 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-02-13 15:26:21 +0300 |
| commit | 18bbcabdc6cc6be8c7f6d80c85d314535d76188d (patch) | |
| tree | b03fa797d8f8bde85bffcd440b54403f2ac19af7 /drivers/scsi/megaraid/megaraid_sas_fp.c | |
| parent | 8b9b22ba75907dcced88c815a5427ec0b4298aec (diff) | |
| download | linux-18bbcabdc6cc6be8c7f6d80c85d314535d76188d.tar.xz | |
Revert "scsi: megaraid_sas: Enable or Disable Fast path based on the PCI Threshold Bandwidth"
This reverts commit "3e5eadb1a881" ("scsi: megaraid_sas: Enable or
Disable Fast path based on the PCI Threshold Bandwidth")
This patch was aimed to increase performance of R1 Write operation for
large IO size. Since this method used timer approach, it turn on/off
fast path did not work as expected. Patch 0013 describes new algorithm
and performance number.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fp.c')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fp.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fp.c b/drivers/scsi/megaraid/megaraid_sas_fp.c index 322a72b593e3..f1384b01b3d3 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fp.c +++ b/drivers/scsi/megaraid/megaraid_sas_fp.c @@ -197,9 +197,6 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance) if (instance->max_raid_mapsize) { fw_map_dyn = fusion->ld_map[(instance->map_id & 1)]; - if (fw_map_dyn->pci_threshold_bandwidth) - instance->pci_threshold_bandwidth = - le64_to_cpu(fw_map_dyn->pci_threshold_bandwidth); #if VD_EXT_DEBUG dev_dbg(&instance->pdev->dev, "raidMapSize 0x%x fw_map_dyn->descTableOffset 0x%x\n", le32_to_cpu(fw_map_dyn->raid_map_size), @@ -207,8 +204,6 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance) dev_dbg(&instance->pdev->dev, "descTableSize 0x%x descTableNumElements 0x%x\n", le32_to_cpu(fw_map_dyn->desc_table_size), le32_to_cpu(fw_map_dyn->desc_table_num_elements)); - dev_dbg(&instance->pdev->dev, "PCIThreasholdBandwidth %llu\n", - instance->pci_threshold_bandwidth); dev_dbg(&instance->pdev->dev, "drv map %p ldCount %d\n", drv_map, fw_map_dyn->ld_count); #endif @@ -439,8 +434,6 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance) sizeof(struct MR_DEV_HANDLE_INFO) * MAX_RAIDMAP_PHYSICAL_DEVICES); } - if (instance->is_ventura && !instance->pci_threshold_bandwidth) - instance->pci_threshold_bandwidth = ULLONG_MAX; } /* |