+++ /dev/null
-From 0ea8c71561bc40a678c7bf15e081737e1f2d15e2 Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Fri, 25 Oct 2024 17:29:31 +0800
-Subject: net: hns3: add sync command to sync io-pgtable
-
-From: Jian Shen <shenjian15@huawei.com>
-
-[ Upstream commit f2c14899caba76da93ff3fff46b4d5a8f43ce07e ]
-
-To avoid errors in pgtable prefectch, add a sync command to sync
-io-pagtable.
-
-This is a supplement for the previous patch.
-We want all the tx packet can be handled with tx bounce buffer path.
-But it depends on the remain space of the spare buffer, checked by the
-hns3_can_use_tx_bounce(). In most cases, maybe 99.99%, it returns true.
-But once it return false by no available space, the packet will be handled
-with the former path, which will map/unmap the skb buffer.
-Then the driver will face the smmu prefetch risk again.
-
-So add a sync command in this case to avoid smmu prefectch,
-just protects corner scenes.
-
-Fixes: 295ba232a8c3 ("net: hns3: add device version to replace pci revision")
-Signed-off-by: Jian Shen <shenjian15@huawei.com>
-Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
-Signed-off-by: Jijie Shao <shaojijie@huawei.com>
-Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- .../net/ethernet/hisilicon/hns3/hns3_enet.c | 27 +++++++++++++++++++
- 1 file changed, 27 insertions(+)
-
-diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
-index ac88e301f2211..8760b4e9ade6b 100644
---- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
-+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
-@@ -381,6 +381,24 @@ static const struct hns3_rx_ptype hns3_rx_ptype_tbl[] = {
- #define HNS3_INVALID_PTYPE \
- ARRAY_SIZE(hns3_rx_ptype_tbl)
-
-+static void hns3_dma_map_sync(struct device *dev, unsigned long iova)
-+{
-+ struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
-+ struct iommu_iotlb_gather iotlb_gather;
-+ size_t granule;
-+
-+ if (!domain || !iommu_is_dma_domain(domain))
-+ return;
-+
-+ granule = 1 << __ffs(domain->pgsize_bitmap);
-+ iova = ALIGN_DOWN(iova, granule);
-+ iotlb_gather.start = iova;
-+ iotlb_gather.end = iova + granule - 1;
-+ iotlb_gather.pgsize = granule;
-+
-+ iommu_iotlb_sync(domain, &iotlb_gather);
-+}
-+
- static irqreturn_t hns3_irq_handle(int irq, void *vector)
- {
- struct hns3_enet_tqp_vector *tqp_vector = vector;
-@@ -1728,7 +1746,9 @@ static int hns3_map_and_fill_desc(struct hns3_enet_ring *ring, void *priv,
- unsigned int type)
- {
- struct hns3_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_use];
-+ struct hnae3_handle *handle = ring->tqp->handle;
- struct device *dev = ring_to_dev(ring);
-+ struct hnae3_ae_dev *ae_dev;
- unsigned int size;
- dma_addr_t dma;
-
-@@ -1760,6 +1780,13 @@ static int hns3_map_and_fill_desc(struct hns3_enet_ring *ring, void *priv,
- return -ENOMEM;
- }
-
-+ /* Add a SYNC command to sync io-pgtale to avoid errors in pgtable
-+ * prefetch
-+ */
-+ ae_dev = hns3_get_ae_dev(handle);
-+ if (ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3)
-+ hns3_dma_map_sync(dev, dma);
-+
- desc_cb->priv = priv;
- desc_cb->length = size;
- desc_cb->dma = dma;
---
-2.43.0
-
net-ethernet-mtk_wed-fix-path-of-mt7988-wo-firmware.patch
netfilter-nft_payload-sanitize-offset-and-length-bef.patch
net-hns3-default-enable-tx-bounce-buffer-when-smmu-e.patch
-net-hns3-add-sync-command-to-sync-io-pgtable.patch
net-hns3-fixed-reset-failure-issues-caused-by-the-in.patch
net-hns3-fix-missing-features-due-to-dev-features-co.patch
net-hns3-resolved-the-issue-that-the-debugfs-query-r.patch
+++ /dev/null
-From 98cb88cce78da8a369cf780343d0280f9d3af4ca Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Fri, 25 Oct 2024 17:29:31 +0800
-Subject: net: hns3: add sync command to sync io-pgtable
-
-From: Jian Shen <shenjian15@huawei.com>
-
-[ Upstream commit f2c14899caba76da93ff3fff46b4d5a8f43ce07e ]
-
-To avoid errors in pgtable prefectch, add a sync command to sync
-io-pagtable.
-
-This is a supplement for the previous patch.
-We want all the tx packet can be handled with tx bounce buffer path.
-But it depends on the remain space of the spare buffer, checked by the
-hns3_can_use_tx_bounce(). In most cases, maybe 99.99%, it returns true.
-But once it return false by no available space, the packet will be handled
-with the former path, which will map/unmap the skb buffer.
-Then the driver will face the smmu prefetch risk again.
-
-So add a sync command in this case to avoid smmu prefectch,
-just protects corner scenes.
-
-Fixes: 295ba232a8c3 ("net: hns3: add device version to replace pci revision")
-Signed-off-by: Jian Shen <shenjian15@huawei.com>
-Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
-Signed-off-by: Jijie Shao <shaojijie@huawei.com>
-Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- .../net/ethernet/hisilicon/hns3/hns3_enet.c | 27 +++++++++++++++++++
- 1 file changed, 27 insertions(+)
-
-diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
-index 1f9bbf13214fb..bfcebf4e235ef 100644
---- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
-+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
-@@ -381,6 +381,24 @@ static const struct hns3_rx_ptype hns3_rx_ptype_tbl[] = {
- #define HNS3_INVALID_PTYPE \
- ARRAY_SIZE(hns3_rx_ptype_tbl)
-
-+static void hns3_dma_map_sync(struct device *dev, unsigned long iova)
-+{
-+ struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
-+ struct iommu_iotlb_gather iotlb_gather;
-+ size_t granule;
-+
-+ if (!domain || !iommu_is_dma_domain(domain))
-+ return;
-+
-+ granule = 1 << __ffs(domain->pgsize_bitmap);
-+ iova = ALIGN_DOWN(iova, granule);
-+ iotlb_gather.start = iova;
-+ iotlb_gather.end = iova + granule - 1;
-+ iotlb_gather.pgsize = granule;
-+
-+ iommu_iotlb_sync(domain, &iotlb_gather);
-+}
-+
- static irqreturn_t hns3_irq_handle(int irq, void *vector)
- {
- struct hns3_enet_tqp_vector *tqp_vector = vector;
-@@ -1728,7 +1746,9 @@ static int hns3_map_and_fill_desc(struct hns3_enet_ring *ring, void *priv,
- unsigned int type)
- {
- struct hns3_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_use];
-+ struct hnae3_handle *handle = ring->tqp->handle;
- struct device *dev = ring_to_dev(ring);
-+ struct hnae3_ae_dev *ae_dev;
- unsigned int size;
- dma_addr_t dma;
-
-@@ -1760,6 +1780,13 @@ static int hns3_map_and_fill_desc(struct hns3_enet_ring *ring, void *priv,
- return -ENOMEM;
- }
-
-+ /* Add a SYNC command to sync io-pgtale to avoid errors in pgtable
-+ * prefetch
-+ */
-+ ae_dev = hns3_get_ae_dev(handle);
-+ if (ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3)
-+ hns3_dma_map_sync(dev, dma);
-+
- desc_cb->priv = priv;
- desc_cb->length = size;
- desc_cb->dma = dma;
---
-2.43.0
-
mlxsw-spectrum_ipip-fix-memory-leak-when-changing-re.patch
netfilter-nft_payload-sanitize-offset-and-length-bef.patch
net-hns3-default-enable-tx-bounce-buffer-when-smmu-e.patch
-net-hns3-add-sync-command-to-sync-io-pgtable.patch
net-hns3-fix-missing-features-due-to-dev-features-co.patch
net-hns3-resolved-the-issue-that-the-debugfs-query-r.patch
net-hns3-don-t-auto-enable-misc-vector.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
