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* [dpdk-stable] [PATCH 19.11] net/i40e: fix multi-process shared data
@ 2021-08-16  6:35 dapengx.yu
  2021-08-16  9:02 ` Christian Ehrhardt
  0 siblings, 1 reply; 2+ messages in thread
From: dapengx.yu @ 2021-08-16  6:35 UTC (permalink / raw)
  To: stable; +Cc: Dapeng Yu

From: Dapeng Yu <dapengx.yu@intel.com>

[ upstream commit e391a7b7f815795eacfae3240c4405353cf37a53 ]

The rte_eth_devices array is not in share memory, it should not be
referenced by i40e_adapter which is shared by primary and secondary.
Any process set i40e_adapter->eth_dev will corrupt another process's
context.

The patch removed the field "eth_dev" from i40e_adapter.
Now, when the data paths try to access the rte_eth_dev_data instance,
they should replace adapter->eth_dev->data with adapter->pf.dev_data.

Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
---
 drivers/net/i40e/i40e_ethdev.c         | 40 +++++++++++++-------------
 drivers/net/i40e/i40e_ethdev.h         |  7 +++--
 drivers/net/i40e/i40e_fdir.c           |  2 +-
 drivers/net/i40e/i40e_flow.c           |  2 +-
 drivers/net/i40e/i40e_rxtx.c           |  4 +--
 drivers/net/i40e/i40e_vf_representor.c | 37 +++++++++++++-----------
 6 files changed, 48 insertions(+), 44 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index d825ef7296..33d0789930 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -741,10 +741,11 @@ i40e_write_global_rx_ctl(struct i40e_hw *hw, uint32_t reg_addr,
 			 uint32_t reg_val)
 {
 	uint32_t ori_reg_val;
-	struct rte_eth_dev *dev;
+	struct rte_eth_dev_data *dev_data =
+		((struct i40e_adapter *)hw->back)->pf.dev_data;
+	struct rte_eth_dev *dev = &rte_eth_devices[dev_data->port_id];
 
 	ori_reg_val = i40e_read_rx_ctl(hw, reg_addr);
-	dev = ((struct i40e_adapter *)hw->back)->eth_dev;
 	i40e_write_rx_ctl(hw, reg_addr, reg_val);
 	if (ori_reg_val != reg_val)
 		PMD_DRV_LOG(WARNING,
@@ -1231,7 +1232,9 @@ i40e_aq_debug_write_global_register(struct i40e_hw *hw,
 				    struct i40e_asq_cmd_details *cmd_details)
 {
 	uint64_t ori_reg_val;
-	struct rte_eth_dev *dev;
+	struct rte_eth_dev_data *dev_data =
+		((struct i40e_adapter *)hw->back)->pf.dev_data;
+	struct rte_eth_dev *dev = &rte_eth_devices[dev_data->port_id];
 	int ret;
 
 	ret = i40e_aq_debug_read_register(hw, reg_addr, &ori_reg_val, NULL);
@@ -1241,7 +1244,6 @@ i40e_aq_debug_write_global_register(struct i40e_hw *hw,
 			    reg_addr);
 		return -EIO;
 	}
-	dev = ((struct i40e_adapter *)hw->back)->eth_dev;
 
 	if (ori_reg_val != reg_val)
 		PMD_DRV_LOG(WARNING,
@@ -1411,7 +1413,6 @@ eth_i40e_dev_init(struct rte_eth_dev *dev, void *init_params __rte_unused)
 	rte_eth_copy_pci_info(dev, pci_dev);
 
 	pf->adapter = I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
-	pf->adapter->eth_dev = dev;
 	pf->dev_data = dev->data;
 
 	hw->back = I40E_PF_TO_ADAPTER(pf);
@@ -1931,7 +1932,7 @@ i40e_dev_configure(struct rte_eth_dev *dev)
 void
 i40e_vsi_queues_unbind_intr(struct i40e_vsi *vsi)
 {
-	struct rte_eth_dev *dev = vsi->adapter->eth_dev;
+	struct rte_eth_dev *dev = I40E_VSI_TO_ETH_DEV(vsi);
 	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 	struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
@@ -2047,7 +2048,7 @@ __vsi_queues_bind_intr(struct i40e_vsi *vsi, uint16_t msix_vect,
 int
 i40e_vsi_queues_bind_intr(struct i40e_vsi *vsi, uint16_t itr_idx)
 {
-	struct rte_eth_dev *dev = vsi->adapter->eth_dev;
+	struct rte_eth_dev *dev = I40E_VSI_TO_ETH_DEV(vsi);
 	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 	struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
@@ -2123,7 +2124,7 @@ i40e_vsi_queues_bind_intr(struct i40e_vsi *vsi, uint16_t itr_idx)
 void
 i40e_vsi_enable_queues_intr(struct i40e_vsi *vsi)
 {
-	struct rte_eth_dev *dev = vsi->adapter->eth_dev;
+	struct rte_eth_dev *dev = I40E_VSI_TO_ETH_DEV(vsi);
 	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 	struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
@@ -2150,7 +2151,7 @@ i40e_vsi_enable_queues_intr(struct i40e_vsi *vsi)
 void
 i40e_vsi_disable_queues_intr(struct i40e_vsi *vsi)
 {
-	struct rte_eth_dev *dev = vsi->adapter->eth_dev;
+	struct rte_eth_dev *dev = I40E_VSI_TO_ETH_DEV(vsi);
 	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 	struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
@@ -6467,8 +6468,7 @@ i40e_dev_tx_init(struct i40e_pf *pf)
 			break;
 	}
 	if (ret == I40E_SUCCESS)
-		i40e_set_tx_function(container_of(pf, struct i40e_adapter, pf)
-				     ->eth_dev);
+		i40e_set_tx_function(&rte_eth_devices[pf->dev_data->port_id]);
 
 	return ret;
 }
@@ -6496,8 +6496,7 @@ i40e_dev_rx_init(struct i40e_pf *pf)
 		}
 	}
 	if (ret == I40E_SUCCESS)
-		i40e_set_rx_function(container_of(pf, struct i40e_adapter, pf)
-				     ->eth_dev);
+		i40e_set_rx_function(&rte_eth_devices[pf->dev_data->port_id]);
 
 	return ret;
 }
@@ -7978,7 +7977,7 @@ i40e_status_code i40e_replace_mpls_l1_filter(struct i40e_pf *pf)
 	struct i40e_aqc_replace_cloud_filters_cmd  filter_replace;
 	struct i40e_aqc_replace_cloud_filters_cmd_buf  filter_replace_buf;
 	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
-	struct rte_eth_dev *dev = ((struct i40e_adapter *)hw->back)->eth_dev;
+	struct rte_eth_dev *dev = &rte_eth_devices[pf->dev_data->port_id];
 	enum i40e_status_code status = I40E_SUCCESS;
 
 	if (pf->support_multi_driver) {
@@ -8039,7 +8038,7 @@ i40e_status_code i40e_replace_mpls_cloud_filter(struct i40e_pf *pf)
 	struct i40e_aqc_replace_cloud_filters_cmd  filter_replace;
 	struct i40e_aqc_replace_cloud_filters_cmd_buf  filter_replace_buf;
 	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
-	struct rte_eth_dev *dev = ((struct i40e_adapter *)hw->back)->eth_dev;
+	struct rte_eth_dev *dev = &rte_eth_devices[pf->dev_data->port_id];
 	enum i40e_status_code status = I40E_SUCCESS;
 
 	if (pf->support_multi_driver) {
@@ -8114,7 +8113,7 @@ i40e_replace_gtp_l1_filter(struct i40e_pf *pf)
 	struct i40e_aqc_replace_cloud_filters_cmd  filter_replace;
 	struct i40e_aqc_replace_cloud_filters_cmd_buf  filter_replace_buf;
 	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
-	struct rte_eth_dev *dev = ((struct i40e_adapter *)hw->back)->eth_dev;
+	struct rte_eth_dev *dev = &rte_eth_devices[pf->dev_data->port_id];
 	enum i40e_status_code status = I40E_SUCCESS;
 
 	if (pf->support_multi_driver) {
@@ -8202,7 +8201,7 @@ i40e_status_code i40e_replace_gtp_cloud_filter(struct i40e_pf *pf)
 	struct i40e_aqc_replace_cloud_filters_cmd  filter_replace;
 	struct i40e_aqc_replace_cloud_filters_cmd_buf  filter_replace_buf;
 	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
-	struct rte_eth_dev *dev = ((struct i40e_adapter *)hw->back)->eth_dev;
+	struct rte_eth_dev *dev = &rte_eth_devices[pf->dev_data->port_id];
 	enum i40e_status_code status = I40E_SUCCESS;
 
 	if (pf->support_multi_driver) {
@@ -9782,9 +9781,10 @@ void
 i40e_check_write_global_reg(struct i40e_hw *hw, uint32_t addr, uint32_t val)
 {
 	uint32_t reg = i40e_read_rx_ctl(hw, addr);
-	struct rte_eth_dev *dev;
+	struct rte_eth_dev_data *dev_data =
+		((struct i40e_adapter *)hw->back)->pf.dev_data;
+	struct rte_eth_dev *dev = &rte_eth_devices[dev_data->port_id];
 
-	dev = ((struct i40e_adapter *)hw->back)->eth_dev;
 	if (reg != val) {
 		i40e_write_rx_ctl(hw, addr, val);
 		PMD_DRV_LOG(WARNING,
@@ -12800,7 +12800,7 @@ i40e_cloud_filter_qinq_create(struct i40e_pf *pf)
 	struct i40e_aqc_replace_cloud_filters_cmd  filter_replace;
 	struct i40e_aqc_replace_cloud_filters_cmd_buf  filter_replace_buf;
 	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
-	struct rte_eth_dev *dev = ((struct i40e_adapter *)hw->back)->eth_dev;
+	struct rte_eth_dev *dev = &rte_eth_devices[pf->dev_data->port_id];
 
 	if (pf->support_multi_driver) {
 		PMD_DRV_LOG(ERR, "Replace cloud filter is not supported.");
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 7c97c609f3..666babd8c5 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -88,8 +88,10 @@
 	do {								\
 		uint32_t ori_val;					\
 		struct rte_eth_dev *dev;				\
+		struct rte_eth_dev_data *dev_data;			\
 		ori_val = I40E_READ_REG((hw), (reg));			\
-		dev = ((struct i40e_adapter *)hw->back)->eth_dev;	\
+		dev_data = ((struct i40e_adapter *)hw->back)->pf.dev_data; \
+		dev = &rte_eth_devices[dev_data->port_id];		\
 		I40E_PCI_REG_WRITE(I40E_PCI_REG_ADDR((hw),		\
 						     (reg)), (value));	\
 		if (ori_val != value)					\
@@ -1101,7 +1103,6 @@ struct i40e_vf {
 struct i40e_adapter {
 	/* Common for both PF and VF */
 	struct i40e_hw hw;
-	struct rte_eth_dev *eth_dev;
 
 	/* Specific for PF or VF */
 	union {
@@ -1352,7 +1353,7 @@ i40e_get_vsi_from_adapter(struct i40e_adapter *adapter)
 #define I40E_VSI_TO_DEV_DATA(vsi) \
 	(((struct i40e_vsi *)vsi)->adapter->pf.dev_data)
 #define I40E_VSI_TO_ETH_DEV(vsi) \
-	(((struct i40e_vsi *)vsi)->adapter->eth_dev)
+	(&rte_eth_devices[((struct i40e_vsi *)vsi)->adapter->pf.dev_data->port_id])
 
 /* I40E_PF_TO */
 #define I40E_PF_TO_HW(pf) \
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index fb9f2c0fce..cf206e8274 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -156,7 +156,7 @@ i40e_fdir_setup(struct i40e_pf *pf)
 	int err = I40E_SUCCESS;
 	char z_name[RTE_MEMZONE_NAMESIZE];
 	const struct rte_memzone *mz = NULL;
-	struct rte_eth_dev *eth_dev = pf->adapter->eth_dev;
+	struct rte_eth_dev *eth_dev = &rte_eth_devices[pf->dev_data->port_id];
 
 	if ((pf->flags & I40E_FLAG_FDIR) == 0) {
 		PMD_INIT_LOG(ERR, "HW doesn't support FDIR");
diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c
index e8a52bdb76..b43f27d354 100644
--- a/drivers/net/i40e/i40e_flow.c
+++ b/drivers/net/i40e/i40e_flow.c
@@ -4917,7 +4917,7 @@ i40e_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
 static int
 i40e_flow_flush_fdir_filter(struct i40e_pf *pf)
 {
-	struct rte_eth_dev *dev = pf->adapter->eth_dev;
+	struct rte_eth_dev *dev = &rte_eth_devices[pf->dev_data->port_id];
 	struct i40e_fdir_info *fdir_info = &pf->fdir;
 	struct i40e_fdir_filter *fdir_filter;
 	enum i40e_filter_pctype pctype;
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 4dc828357f..2c969013fd 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -2845,7 +2845,7 @@ i40e_fdir_setup_tx_resources(struct i40e_pf *pf)
 		return I40E_ERR_BAD_PTR;
 	}
 
-	dev = pf->adapter->eth_dev;
+	dev = &rte_eth_devices[pf->dev_data->port_id];
 
 	/* Allocate the TX queue data structure. */
 	txq = rte_zmalloc_socket("i40e fdir tx queue",
@@ -2901,7 +2901,7 @@ i40e_fdir_setup_rx_resources(struct i40e_pf *pf)
 		return I40E_ERR_BAD_PTR;
 	}
 
-	dev = pf->adapter->eth_dev;
+	dev = &rte_eth_devices[pf->dev_data->port_id];
 
 	/* Allocate the RX queue data structure. */
 	rxq = rte_zmalloc_socket("i40e fdir rx queue",
diff --git a/drivers/net/i40e/i40e_vf_representor.c b/drivers/net/i40e/i40e_vf_representor.c
index 083bc1a5f3..40065e1524 100644
--- a/drivers/net/i40e/i40e_vf_representor.c
+++ b/drivers/net/i40e/i40e_vf_representor.c
@@ -18,15 +18,18 @@ i40e_vf_representor_link_update(struct rte_eth_dev *ethdev,
 	int wait_to_complete)
 {
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
+	struct rte_eth_dev *dev =
+		&rte_eth_devices[representor->adapter->pf.dev_data->port_id];
 
-	return i40e_dev_link_update(representor->adapter->eth_dev,
-		wait_to_complete);
+	return i40e_dev_link_update(dev, wait_to_complete);
 }
 static int
 i40e_vf_representor_dev_infos_get(struct rte_eth_dev *ethdev,
 	struct rte_eth_dev_info *dev_info)
 {
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
+	struct rte_eth_dev_data *pf_dev_data =
+		representor->adapter->pf.dev_data;
 
 	/* get dev info for the vdev */
 	dev_info->device = ethdev->device;
@@ -98,7 +101,7 @@ i40e_vf_representor_dev_infos_get(struct rte_eth_dev *ethdev,
 	};
 
 	dev_info->switch_info.name =
-		representor->adapter->eth_dev->device->name;
+		rte_eth_devices[pf_dev_data->port_id].device->name;
 	dev_info->switch_info.domain_id = representor->switch_domain_id;
 	dev_info->switch_info.port_id = representor->vf_id;
 
@@ -211,7 +214,7 @@ i40e_vf_representor_stats_get(struct rte_eth_dev *ethdev,
 	int ret;
 
 	ret = rte_pmd_i40e_get_vf_native_stats(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		representor->vf_id, &native_stats);
 	if (ret == 0) {
 		i40evf_stat_update_48(
@@ -271,7 +274,7 @@ i40e_vf_representor_stats_reset(struct rte_eth_dev *ethdev)
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
 
 	return rte_pmd_i40e_get_vf_native_stats(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		representor->vf_id, &representor->stats_offset);
 }
 
@@ -281,7 +284,7 @@ i40e_vf_representor_promiscuous_enable(struct rte_eth_dev *ethdev)
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
 
 	return rte_pmd_i40e_set_vf_unicast_promisc(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		representor->vf_id, 1);
 }
 
@@ -291,7 +294,7 @@ i40e_vf_representor_promiscuous_disable(struct rte_eth_dev *ethdev)
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
 
 	return rte_pmd_i40e_set_vf_unicast_promisc(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		representor->vf_id, 0);
 }
 
@@ -301,7 +304,7 @@ i40e_vf_representor_allmulticast_enable(struct rte_eth_dev *ethdev)
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
 
 	return rte_pmd_i40e_set_vf_multicast_promisc(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		representor->vf_id,  1);
 }
 
@@ -311,7 +314,7 @@ i40e_vf_representor_allmulticast_disable(struct rte_eth_dev *ethdev)
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
 
 	return rte_pmd_i40e_set_vf_multicast_promisc(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		representor->vf_id,  0);
 }
 
@@ -321,7 +324,7 @@ i40e_vf_representor_mac_addr_remove(struct rte_eth_dev *ethdev, uint32_t index)
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
 
 	rte_pmd_i40e_remove_vf_mac_addr(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		representor->vf_id, &ethdev->data->mac_addrs[index]);
 }
 
@@ -332,7 +335,7 @@ i40e_vf_representor_mac_addr_set(struct rte_eth_dev *ethdev,
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
 
 	return rte_pmd_i40e_set_vf_mac_addr(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		representor->vf_id, mac_addr);
 }
 
@@ -344,7 +347,7 @@ i40e_vf_representor_vlan_filter_set(struct rte_eth_dev *ethdev,
 	uint64_t vf_mask = 1ULL << representor->vf_id;
 
 	return rte_pmd_i40e_set_vf_vlan_filter(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		vlan_id, vf_mask, on);
 }
 
@@ -358,7 +361,7 @@ i40e_vf_representor_vlan_offload_set(struct rte_eth_dev *ethdev, int mask)
 	struct i40e_pf *pf;
 	uint32_t vfid;
 
-	pdev = representor->adapter->eth_dev;
+	pdev = &rte_eth_devices[representor->adapter->pf.dev_data->port_id];
 	vfid = representor->vf_id;
 
 	if (!is_i40e_supported(pdev)) {
@@ -408,7 +411,7 @@ i40e_vf_representor_vlan_strip_queue_set(struct rte_eth_dev *ethdev,
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
 
 	rte_pmd_i40e_set_vf_vlan_stripq(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		representor->vf_id, on);
 }
 
@@ -419,7 +422,7 @@ i40e_vf_representor_vlan_pvid_set(struct rte_eth_dev *ethdev, uint16_t vlan_id,
 	struct i40e_vf_representor *representor = ethdev->data->dev_private;
 
 	return rte_pmd_i40e_set_vf_vlan_insert(
-		representor->adapter->eth_dev->data->port_id,
+		representor->adapter->pf.dev_data->port_id,
 		representor->vf_id, vlan_id);
 }
 
@@ -485,7 +488,7 @@ i40e_vf_representor_init(struct rte_eth_dev *ethdev, void *init_params)
 		((struct i40e_vf_representor *)init_params)->adapter;
 
 	pf = I40E_DEV_PRIVATE_TO_PF(
-		representor->adapter->eth_dev->data->dev_private);
+		representor->adapter->pf.dev_data->dev_private);
 
 	if (representor->vf_id >= pf->vf_num)
 		return -ENODEV;
@@ -516,7 +519,7 @@ i40e_vf_representor_init(struct rte_eth_dev *ethdev, void *init_params)
 	ethdev->data->mac_addrs = &vf->mac_addr;
 
 	/* Link state. Inherited from PF */
-	link = &representor->adapter->eth_dev->data->dev_link;
+	link = &representor->adapter->pf.dev_data->dev_link;
 
 	ethdev->data->dev_link.link_speed = link->link_speed;
 	ethdev->data->dev_link.link_duplex = link->link_duplex;
-- 
2.27.0


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2021-08-16  6:35 [dpdk-stable] [PATCH 19.11] net/i40e: fix multi-process shared data dapengx.yu
2021-08-16  9:02 ` Christian Ehrhardt

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