From: John Garry <john.garry@huawei.com>
To: <joro@8bytes.org>, <will@kernel.org>, <robin.murphy@arm.com>,
<hch@lst.de>, <m.szyprowski@samsung.com>
Cc: <iommu@lists.linux-foundation.org>, <baolu.lu@linux.intel.com>,
<linux-kernel@vger.kernel.org>, <linux-scsi@vger.kernel.org>,
<linuxarm@huawei.com>, <sai.praneeth.prakhya@intel.com>,
John Garry <john.garry@huawei.com>
Subject: [PATCH v2 15/15] scsi: hisi_sas: Set max optimal DMA size for v3 hw
Date: Mon, 10 May 2021 22:17:29 +0800 [thread overview]
Message-ID: <1620656249-68890-16-git-send-email-john.garry@huawei.com> (raw)
In-Reply-To: <1620656249-68890-1-git-send-email-john.garry@huawei.com>
For IOMMU strict mode, gives a big performance boost in some scenarios.
Signed-off-by: John Garry <john.garry@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 499c770d405c..365fc9de4be2 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -4675,6 +4675,11 @@ hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id)
struct sas_ha_struct *sha;
int rc, phy_nr, port_nr, i;
+ rc = dma_set_max_opt_size(dev, PAGE_SIZE * HISI_SAS_SGE_PAGE_CNT);
+ /* We can live with other errors */
+ if (rc == -EPROBE_DEFER)
+ return rc;
+
rc = pci_enable_device(pdev);
if (rc)
goto err_out;
--
2.26.2
next prev parent reply other threads:[~2021-05-10 14:28 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-10 14:17 [PATCH v2 00/15] dma mapping/iommu: Allow IOMMU IOVA rcache range to be configured John Garry
2021-05-10 14:17 ` [PATCH v2 01/15] iommu: Reactor iommu_group_store_type() John Garry
2021-05-10 14:17 ` [PATCH v2 02/15] iova: Allow rcache range upper limit to be flexible John Garry
2021-05-10 14:17 ` [PATCH v2 03/15] iommu: Allow max opt DMA len be set for a group via sysfs John Garry
2021-05-10 14:17 ` [PATCH v2 04/15] iommu: Add iommu_group_get_max_opt_dma_size() John Garry
2021-05-10 14:17 ` [PATCH v2 05/15] iova: Add iova_domain_len_is_cached() John Garry
2021-05-10 14:17 ` [PATCH v2 06/15] iommu: Allow iommu_change_dev_def_domain() realloc default domain for same type John Garry
2021-05-10 14:17 ` [PATCH v2 07/15] iommu: Add iommu_realloc_dev_group() John Garry
2021-05-10 14:17 ` [PATCH v2 08/15] dma-iommu: Add iommu_reconfig_dev_group_dma() John Garry
2021-05-10 14:17 ` [PATCH v2 09/15] iova: Add init_iova_domain_ext() John Garry
2021-05-10 17:50 ` kernel test robot
2021-05-10 17:50 ` [RFC PATCH] iova: __init_iova_domain can be static kernel test robot
2021-05-10 14:17 ` [PATCH v2 10/15] dma-iommu: Use init_iova_domain_ext() for IOVA domain init John Garry
2021-05-10 14:17 ` [PATCH v2 11/15] dma-iommu: Reconfig group domain John Garry
2021-05-10 14:17 ` [PATCH v2 12/15] iommu: Add iommu_set_dev_dma_opt_size() John Garry
2021-05-10 14:17 ` [PATCH v2 13/15] dma-mapping: Add dma_set_max_opt_size() John Garry
2021-05-10 14:17 ` [PATCH v2 14/15] dma-iommu: Add iommu_dma_set_opt_size() John Garry
2021-05-10 14:17 ` John Garry [this message]
2021-05-20 8:28 ` [PATCH v2 00/15] dma mapping/iommu: Allow IOMMU IOVA rcache range to be configured John Garry
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