[dpdk-dev] [PATCH v4 1/5] raw/ifpga_rawdev: fix use of untrusted scalar value

[dpdk-dev] [PATCH v4 1/5] raw/ifpga_rawdev: fix use of untrusted scalar value

[Tianfei zhang]

Add checking the buffer size and use
const char * for buffer declaration.

Coverity issue: 279449
Fixes: ef1e8ede ("raw/ifpga: add Intel FPGA bus rawdev driver")
Cc: stable@dpdk.org

Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>
---
 drivers/raw/ifpga_rawdev/base/ifpga_api.c     |  4 +--
 drivers/raw/ifpga_rawdev/base/ifpga_api.h     |  2 +-
 .../raw/ifpga_rawdev/base/ifpga_feature_dev.h |  2 +-
 drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c  | 27 +++++++++++--------
 drivers/raw/ifpga_rawdev/base/opae_hw_api.c   |  4 +--
 drivers/raw/ifpga_rawdev/base/opae_hw_api.h   |  4 +--
 drivers/raw/ifpga_rawdev/ifpga_rawdev.c       |  7 ++++-
 7 files changed, 30 insertions(+), 20 deletions(-)

diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_api.c b/drivers/raw/ifpga_rawdev/base/ifpga_api.c
index 3ddbcdc2a..53d101daf 100644
--- a/drivers/raw/ifpga_rawdev/base/ifpga_api.c
+++ b/drivers/raw/ifpga_rawdev/base/ifpga_api.c
@@ -182,7 +182,7 @@ struct opae_bridge_ops ifpga_br_ops = {
 };
 
 /* Manager APIs */
-static int ifpga_mgr_flash(struct opae_manager *mgr, int id, void *buf,
+static int ifpga_mgr_flash(struct opae_manager *mgr, int id, const char *buf,
 			   u32 size, u64 *status)
 {
 	struct ifpga_fme_hw *fme = mgr->data;
@@ -324,7 +324,7 @@ struct opae_adapter_ops ifpga_adapter_ops = {
  *   - 0: Success, partial reconfiguration finished.
  *   - <0: Error code returned in partial reconfiguration.
  **/
-int ifpga_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
+int ifpga_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, u32 size,
 	     u64 *status)
 {
 	if (!is_valid_port_id(hw, port_id))
diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_api.h b/drivers/raw/ifpga_rawdev/base/ifpga_api.h
index 4a247698c..051ab8276 100644
--- a/drivers/raw/ifpga_rawdev/base/ifpga_api.h
+++ b/drivers/raw/ifpga_rawdev/base/ifpga_api.h
@@ -23,7 +23,7 @@ int ifpga_set_irq(struct ifpga_hw *hw, u32 fiu_id, u32 port_id,
 		  u32 feature_id, void *irq_set);
 
 /* FME APIs */
-int ifpga_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
+int ifpga_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, u32 size,
 	     u64 *status);
 
 #endif /* _IFPGA_API_H_ */
diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h b/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h
index bb9fcc289..e243d4273 100644
--- a/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h
+++ b/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h
@@ -149,7 +149,7 @@ static inline int fpga_port_reset(struct ifpga_port_hw *port)
 	return ret;
 }
 
-int do_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
+int do_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, u32 size,
 	  u64 *status);
 
 int fme_get_prop(struct ifpga_fme_hw *fme, struct feature_prop *prop);
diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c b/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c
index efa72660f..9997942d2 100644
--- a/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c
+++ b/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c
@@ -223,8 +223,8 @@ static int fpga_pr_buf_load(struct ifpga_fme_hw *fme_dev,
 	return 0;
 }
 
-static int fme_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
-		  u64 *status)
+static int fme_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer,
+		u32 size, u64 *status)
 {
 	struct feature_fme_header *fme_hdr;
 	struct feature_fme_capability fme_capability;
@@ -269,7 +269,7 @@ static int fme_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
 	/* Disable Port before PR */
 	fpga_port_disable(port);
 
-	ret = fpga_pr_buf_load(fme, &info, (void *)buffer, size);
+	ret = fpga_pr_buf_load(fme, &info, buffer, size);
 
 	*status = info.pr_err;
 
@@ -280,27 +280,32 @@ static int fme_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
 	return ret;
 }
 
-int do_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size, u64 *status)
+int do_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer,
+		u32 size, u64 *status)
 {
-	struct bts_header *bts_hdr;
-	void *buf;
+	const struct bts_header *bts_hdr;
+	const char *buf;
 	struct ifpga_port_hw *port;
 	int ret;
+	u32 header_size;
 
 	if (!buffer || size == 0) {
 		dev_err(hw, "invalid parameter\n");
 		return -EINVAL;
 	}
 
-	bts_hdr = (struct bts_header *)buffer;
+	bts_hdr = (const struct bts_header *)buffer;
 
 	if (is_valid_bts(bts_hdr)) {
 		dev_info(hw, "this is a valid bitsteam..\n");
-		size -= (sizeof(struct bts_header) +
-				     bts_hdr->metadata_len);
-		buf = (u8 *)buffer + sizeof(struct bts_header) +
-			       bts_hdr->metadata_len;
+		header_size = sizeof(struct bts_header) +
+			bts_hdr->metadata_len;
+		if (size < header_size)
+			return -EINVAL;
+		size -= header_size;
+		buf = buffer + header_size;
 	} else {
+		dev_err(hw, "this is an invalid bitstream..\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/raw/ifpga_rawdev/base/opae_hw_api.c b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c
index 0e117d05e..8964e7984 100644
--- a/drivers/raw/ifpga_rawdev/base/opae_hw_api.c
+++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c
@@ -244,8 +244,8 @@ opae_manager_alloc(const char *name, struct opae_manager_ops *ops,
  *
  * Return: 0 on success, otherwise error code.
  */
-int opae_manager_flash(struct opae_manager *mgr, int id, void *buf, u32 size,
-		       u64 *status)
+int opae_manager_flash(struct opae_manager *mgr, int id, const char *buf,
+		u32 size, u64 *status)
 {
 	if (!mgr)
 		return -EINVAL;
diff --git a/drivers/raw/ifpga_rawdev/base/opae_hw_api.h b/drivers/raw/ifpga_rawdev/base/opae_hw_api.h
index 383e751cb..63405a471 100644
--- a/drivers/raw/ifpga_rawdev/base/opae_hw_api.h
+++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.h
@@ -44,7 +44,7 @@ struct opae_manager {
 
 /* FIXME: add more management ops, e.g power/thermal and etc */
 struct opae_manager_ops {
-	int (*flash)(struct opae_manager *mgr, int id, void *buffer,
+	int (*flash)(struct opae_manager *mgr, int id, const char *buffer,
 		     u32 size, u64 *status);
 	int (*get_eth_group_region_info)(struct opae_manager *mgr,
 			struct opae_eth_group_region_info *info);
@@ -74,7 +74,7 @@ struct opae_manager *
 opae_manager_alloc(const char *name, struct opae_manager_ops *ops,
 		struct opae_manager_networking_ops *network_ops, void *data);
 #define opae_manager_free(mgr) opae_free(mgr)
-int opae_manager_flash(struct opae_manager *mgr, int acc_id, void *buf,
+int opae_manager_flash(struct opae_manager *mgr, int acc_id, const char *buf,
 		       u32 size, u64 *status);
 int opae_manager_get_eth_group_region_info(struct opae_manager *mgr,
 		u8 group_id, struct opae_eth_group_region_info *info);
diff --git a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
index 41be1a205..01aa917de 100644
--- a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
+++ b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
@@ -225,7 +225,7 @@ ifpga_rawdev_reset(struct rte_rawdev *dev)
 }
 
 static int
-fpga_pr(struct rte_rawdev *raw_dev, u32 port_id, u64 *buffer, u32 size,
+fpga_pr(struct rte_rawdev *raw_dev, u32 port_id, const char *buffer, u32 size,
 			u64 *status)
 {
 
@@ -296,6 +296,11 @@ rte_fpga_do_pr(struct rte_rawdev *rawdev, int port_id,
 		goto close_fd;
 	}
 	buffer_size = file_stat.st_size;
+	if (buffer_size <= 0) {
+		ret = -EINVAL;
+		goto close_fd;
+	}
+
 	IFPGA_RAWDEV_PMD_INFO("bitstream file size: %zu\n", buffer_size);
 	buffer = rte_malloc(NULL, buffer_size, 0);
 	if (!buffer) {
-- 
2.17.1

[dpdk-dev] [PATCH v4 2/5] raw/ifpga_rawdev: fix logically dead code

[Tianfei zhang]

add temporary variable in max10_reg_write().

Coverity issue: 337927
Fixes: 96ebfcf ("raw/ifpga/base: add SPI and MAX10 device driver")
Cc: stable@dpdk.org

Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>
---
 drivers/raw/ifpga_rawdev/base/opae_intel_max10.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
index f354ee4b6..3ff6575d7 100644
--- a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
@@ -17,11 +17,13 @@ int max10_reg_read(unsigned int reg, unsigned int *val)
 
 int max10_reg_write(unsigned int reg, unsigned int val)
 {
+	unsigned int tmp = val;
+
 	if (!g_max10)
 		return -ENODEV;
 
 	return spi_transaction_write(g_max10->spi_tran_dev,
-			reg, 4, (unsigned char *)&val);
+			reg, 4, (unsigned char *)&tmp);
 }
 
 struct intel_max10_device *
@@ -57,7 +59,7 @@ intel_max10_device_probe(struct altera_spi_device *spi,
 
 	/* set PKVL Polling manually in BBS */
 	ret = max10_reg_write(PKVL_POLLING_CTRL, 0x3);
-	if (ret) {
+	if (ret != 0) {
 		dev_err(dev, "%s set PKVL polling fail\n", __func__);
 		goto spi_tran_fail;
 	}
-- 
2.17.1

Re: [dpdk-dev] [PATCH v4 2/5] raw/ifpga_rawdev: fix logically dead code

[Xu, Rosen]

> -----Original Message-----
> From: Zhang, Tianfei
> Sent: Friday, June 21, 2019 16:40
> To: dev@dpdk.org; Yigit, Ferruh <ferruh.yigit@intel.com>
> Cc: Xu, Rosen <rosen.xu@intel.com>; stable@dpdk.org; Zhang, Tianfei
> <tianfei.zhang@intel.com>
> Subject: [PATCH v4 2/5] raw/ifpga_rawdev: fix logically dead code
> 
> add temporary variable in max10_reg_write().
> 
> Coverity issue: 337927
> Fixes: 96ebfcf ("raw/ifpga/base: add SPI and MAX10 device driver")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
> Acked-by: Rosen Xu <rosen.xu@intel.com>
> ---
>  drivers/raw/ifpga_rawdev/base/opae_intel_max10.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
> b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
> index f354ee4b6..3ff6575d7 100644
> --- a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
> +++ b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
> @@ -17,11 +17,13 @@ int max10_reg_read(unsigned int reg, unsigned int
> *val)
> 
>  int max10_reg_write(unsigned int reg, unsigned int val)  {
> +	unsigned int tmp = val;
> +
>  	if (!g_max10)
>  		return -ENODEV;
> 
>  	return spi_transaction_write(g_max10->spi_tran_dev,
> -			reg, 4, (unsigned char *)&val);
> +			reg, 4, (unsigned char *)&tmp);
>  }
> 
>  struct intel_max10_device *
> @@ -57,7 +59,7 @@ intel_max10_device_probe(struct altera_spi_device
> *spi,
> 
>  	/* set PKVL Polling manually in BBS */
>  	ret = max10_reg_write(PKVL_POLLING_CTRL, 0x3);
> -	if (ret) {
> +	if (ret != 0) {
>  		dev_err(dev, "%s set PKVL polling fail\n", __func__);
>  		goto spi_tran_fail;
>  	}
> --
> 2.17.1

Acked-by: Rosen Xu <rosen.xu@intel.com>

[dpdk-dev] [PATCH v4 3/5] raw/ifpga_rawdev/base: fix bit fields definition

[Tianfei zhang]

Fix CTRL_DEV_SELECT bit fields definition about eth_group devices.

Fixes: 8a256bef32 ("raw/ifpga/base: add eth group driver")
Cc: stable@dpdk.org

Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>
---
 drivers/raw/ifpga_rawdev/base/opae_eth_group.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/raw/ifpga_rawdev/base/opae_eth_group.h b/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
index 8d695cc8e..a66d77e27 100644
--- a/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
+++ b/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
@@ -31,7 +31,7 @@
 #define CMD_NOP			0ULL
 #define CMD_RD			1ULL
 #define CMD_WR			2ULL
-#define CTRL_DEV_SELECT		GENMASK_ULL(52, 49)
+#define CTRL_DEV_SELECT		GENMASK_ULL(53, 49)
 #define CTRL_DS_SHIFT   49
 #define CTRL_FEAT_SELECT	BIT_ULL(48)
 #define SELECT_IP		0
-- 
2.17.1

Re: [dpdk-dev] [PATCH v4 3/5] raw/ifpga_rawdev/base: fix bit fields definition

[Xu, Rosen]

> -----Original Message-----
> From: Zhang, Tianfei
> Sent: Friday, June 21, 2019 16:40
> To: dev@dpdk.org; Yigit, Ferruh <ferruh.yigit@intel.com>
> Cc: Xu, Rosen <rosen.xu@intel.com>; stable@dpdk.org; Zhang, Tianfei
> <tianfei.zhang@intel.com>
> Subject: [PATCH v4 3/5] raw/ifpga_rawdev/base: fix bit fields definition
> 
> Fix CTRL_DEV_SELECT bit fields definition about eth_group devices.
> 
> Fixes: 8a256bef32 ("raw/ifpga/base: add eth group driver")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
> Acked-by: Rosen Xu <rosen.xu@intel.com>
> ---
>  drivers/raw/ifpga_rawdev/base/opae_eth_group.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
> b/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
> index 8d695cc8e..a66d77e27 100644
> --- a/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
> +++ b/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
> @@ -31,7 +31,7 @@
>  #define CMD_NOP			0ULL
>  #define CMD_RD			1ULL
>  #define CMD_WR			2ULL
> -#define CTRL_DEV_SELECT		GENMASK_ULL(52, 49)
> +#define CTRL_DEV_SELECT		GENMASK_ULL(53, 49)
>  #define CTRL_DS_SHIFT   49
>  #define CTRL_FEAT_SELECT	BIT_ULL(48)
>  #define SELECT_IP		0
> --
> 2.17.1

Acked-by: Rosen Xu <rosen.xu@intel.com>

[dpdk-dev] [PATCH v4 4/5] raw/ifpga_rawdev/base: fix miss physical address

[Tianfei zhang]

Fix miss phy_addr on ifpga_acc_get_region_info() function.

Fixes: 56bb54ea1bd ("raw/ifpga/base: add Intel FPGA OPAE share code")
Cc: stable@dpdk.org

Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>
---
 drivers/raw/ifpga_rawdev/base/ifpga_api.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_api.c b/drivers/raw/ifpga_rawdev/base/ifpga_api.c
index 53d101daf..7ae626d64 100644
--- a/drivers/raw/ifpga_rawdev/base/ifpga_api.c
+++ b/drivers/raw/ifpga_rawdev/base/ifpga_api.c
@@ -76,6 +76,7 @@ static int ifpga_acc_get_region_info(struct opae_accelerator *acc,
 	info->flags = ACC_REGION_READ | ACC_REGION_WRITE | ACC_REGION_MMIO;
 	info->len = afu_info->region[info->index].len;
 	info->addr = afu_info->region[info->index].addr;
+	info->phys_addr = afu_info->region[info->index].phys_addr;
 
 	return 0;
 }
-- 
2.17.1

Re: [dpdk-dev] [PATCH v4 4/5] raw/ifpga_rawdev/base: fix miss physical address

[Xu, Rosen]

> -----Original Message-----
> From: Zhang, Tianfei
> Sent: Friday, June 21, 2019 16:40
> To: dev@dpdk.org; Yigit, Ferruh <ferruh.yigit@intel.com>
> Cc: Xu, Rosen <rosen.xu@intel.com>; stable@dpdk.org; Zhang, Tianfei
> <tianfei.zhang@intel.com>
> Subject: [PATCH v4 4/5] raw/ifpga_rawdev/base: fix miss physical address
> 
> Fix miss phy_addr on ifpga_acc_get_region_info() function.
> 
> Fixes: 56bb54ea1bd ("raw/ifpga/base: add Intel FPGA OPAE share code")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
> Acked-by: Rosen Xu <rosen.xu@intel.com>
> ---
>  drivers/raw/ifpga_rawdev/base/ifpga_api.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_api.c
> b/drivers/raw/ifpga_rawdev/base/ifpga_api.c
> index 53d101daf..7ae626d64 100644
> --- a/drivers/raw/ifpga_rawdev/base/ifpga_api.c
> +++ b/drivers/raw/ifpga_rawdev/base/ifpga_api.c
> @@ -76,6 +76,7 @@ static int ifpga_acc_get_region_info(struct
> opae_accelerator *acc,
>  	info->flags = ACC_REGION_READ | ACC_REGION_WRITE |
> ACC_REGION_MMIO;
>  	info->len = afu_info->region[info->index].len;
>  	info->addr = afu_info->region[info->index].addr;
> +	info->phys_addr = afu_info->region[info->index].phys_addr;
> 
>  	return 0;
>  }
> --
> 2.17.1

Acked-by: Rosen Xu <rosen.xu@intel.com>

[dpdk-dev] [PATCH v4 5/5] raw/ifpga_rawdev/base: fix retimer link status issue

[Tianfei zhang]

Fix the readout retimer link status incorrectly when we
remove the linux intel-fpga-driver and run the DPDK application.
The linux driver will stop the retimer when remove the kernel
modules.

Fixes: 8a256bef ("raw/ifpga/base: add eth group driver")
Cc: stable@dpdk.org

Reported-by: Sampath Amrutha <amrutha.sampath@intel.com>
Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
---
 .../raw/ifpga_rawdev/base/opae_eth_group.c    | 172 ++++++++++++++++++
 .../raw/ifpga_rawdev/base/opae_eth_group.h    |   6 +
 .../raw/ifpga_rawdev/base/opae_intel_max10.c  |   7 -
 3 files changed, 178 insertions(+), 7 deletions(-)

diff --git a/drivers/raw/ifpga_rawdev/base/opae_eth_group.c b/drivers/raw/ifpga_rawdev/base/opae_eth_group.c
index 8db6693b1..d189dd578 100644
--- a/drivers/raw/ifpga_rawdev/base/opae_eth_group.c
+++ b/drivers/raw/ifpga_rawdev/base/opae_eth_group.c
@@ -113,6 +113,171 @@ int eth_group_read_reg(struct eth_group_device *dev,
 	return 0;
 }
 
+static int eth_group_reset_mac(struct eth_group_device *dev, u8 index,
+			       bool enable)
+{
+	u32 val;
+	int ret;
+
+	/*
+	 * only support 25G & 40G mac reset for now. It uses internal reset.
+	 * as PHY and MAC are integrated together, below action will trigger
+	 * PHY reset too.
+	 */
+	if (dev->speed != 25 && dev->speed != 40)
+		return 0;
+
+	ret = eth_group_read_reg(dev, ETH_GROUP_MAC, index, MAC_CONFIG,
+				 &val);
+	if (ret) {
+		dev_err(dev, "fail to read PHY_CONFIG: %d\n", ret);
+		return ret;
+	}
+
+	/* skip if mac is in expected state already */
+	if ((((val & MAC_RESET_MASK) == MAC_RESET_MASK) && enable) ||
+	    (((val & MAC_RESET_MASK) == 0) && !enable))
+		return 0;
+
+	if (enable)
+		val |= MAC_RESET_MASK;
+	else
+		val &= ~MAC_RESET_MASK;
+
+	ret = eth_group_write_reg(dev, ETH_GROUP_MAC, index, MAC_CONFIG,
+				  val);
+	if (ret)
+		dev_err(dev, "fail to write PHY_CONFIG: %d\n", ret);
+
+	return ret;
+}
+
+static void eth_group_mac_uinit(struct eth_group_device *dev)
+{
+	u8 i;
+
+	for (i = 0; i < dev->mac_num; i++) {
+		if (eth_group_reset_mac(dev, i, true))
+			dev_err(dev, "fail to disable mac %d\n", i);
+	}
+}
+
+static int eth_group_mac_init(struct eth_group_device *dev)
+{
+	int ret;
+	u8 i;
+
+	for (i = 0; i < dev->mac_num; i++) {
+		ret = eth_group_reset_mac(dev, i, false);
+		if (ret) {
+			dev_err(dev, "fail to enable mac %d\n", i);
+			goto exit;
+		}
+	}
+
+	return 0;
+
+exit:
+	while (i--)
+		eth_group_reset_mac(dev, i, true);
+
+	return ret;
+}
+
+static int eth_group_reset_phy(struct eth_group_device *dev, u8 index,
+		bool enable)
+{
+	u32 val;
+	int ret;
+
+	/* only support 10G PHY reset for now. It uses external reset. */
+	if (dev->speed != 10)
+		return 0;
+
+	ret = eth_group_read_reg(dev, ETH_GROUP_PHY, index,
+			ADD_PHY_CTRL, &val);
+	if (ret) {
+		dev_err(dev, "fail to read ADD_PHY_CTRL reg: %d\n", ret);
+		return ret;
+	}
+
+	/* return if PHY is already in expected state */
+	if ((val & PHY_RESET && enable) || (!(val & PHY_RESET) && !enable))
+		return 0;
+
+	if (enable)
+		val |= PHY_RESET;
+	else
+		val &= ~PHY_RESET;
+
+	ret = eth_group_write_reg(dev, ETH_GROUP_PHY, index,
+			ADD_PHY_CTRL, val);
+	if (ret)
+		dev_err(dev, "fail to write ADD_PHY_CTRL reg: %d\n", ret);
+
+	return ret;
+}
+
+static int eth_group_phy_init(struct eth_group_device *dev)
+{
+	int ret;
+	int i;
+
+	for (i = 0; i < dev->phy_num; i++) {
+		ret = eth_group_reset_phy(dev, i, false);
+		if (ret) {
+			dev_err(dev, "fail to enable phy %d\n", i);
+			goto exit;
+		}
+	}
+
+	return 0;
+exit:
+	while (i--)
+		eth_group_reset_phy(dev, i, true);
+
+	return ret;
+}
+
+static void eth_group_phy_uinit(struct eth_group_device *dev)
+{
+	int i;
+
+	for (i = 0; i < dev->phy_num; i++) {
+		if (eth_group_reset_phy(dev, i, true))
+			dev_err(dev, "fail to disable phy %d\n", i);
+	}
+}
+
+static int eth_group_hw_init(struct eth_group_device *dev)
+{
+	int ret;
+
+	ret = eth_group_phy_init(dev);
+	if (ret) {
+		dev_err(dev, "fail to init eth group phys\n");
+		return ret;
+	}
+
+	ret = eth_group_mac_init(dev);
+	if (ret) {
+		dev_err(priv->dev, "fail to init eth group macs\n");
+		goto phy_exit;
+	}
+
+	return 0;
+
+phy_exit:
+	eth_group_phy_uinit(dev);
+	return ret;
+}
+
+static void eth_group_hw_uinit(struct eth_group_device *dev)
+{
+	eth_group_mac_uinit(dev);
+	eth_group_phy_uinit(dev);
+}
+
 struct eth_group_device *eth_group_probe(void *base)
 {
 	struct eth_group_device *dev;
@@ -130,6 +295,11 @@ struct eth_group_device *eth_group_probe(void *base)
 
 	dev->status = ETH_GROUP_DEV_ATTACHED;
 
+	if (eth_group_hw_init(dev)) {
+		dev_err(dev, "eth group hw init fail\n");
+		return NULL;
+	}
+
 	dev_info(dev, "eth group device %d probe done: phy_num=mac_num:%d, speed=%d\n",
 			dev->group_id, dev->phy_num, dev->speed);
 
@@ -138,6 +308,8 @@ struct eth_group_device *eth_group_probe(void *base)
 
 void eth_group_release(struct eth_group_device *dev)
 {
+	eth_group_hw_uinit(dev);
+
 	if (dev) {
 		dev->status = ETH_GROUP_DEV_NOUSED;
 		opae_free(dev);
diff --git a/drivers/raw/ifpga_rawdev/base/opae_eth_group.h b/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
index a66d77e27..4868bd0e1 100644
--- a/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
+++ b/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
@@ -44,6 +44,12 @@
 #define STAT_DATA_VAL		BIT_ULL(32)
 #define STAT_RD_DATA		GENMASK_ULL(31, 0)
 
+/* Additional Feature Register */
+#define ADD_PHY_CTRL            0x0
+#define PHY_RESET               BIT(0)
+#define MAC_CONFIG      0x310
+#define MAC_RESET_MASK  GENMASK(2, 0)
+
 struct opae_eth_group_info {
 	u8 group_id;
 	u8 speed;
diff --git a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
index 3ff6575d7..9ed10e282 100644
--- a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
@@ -57,13 +57,6 @@ intel_max10_device_probe(struct altera_spi_device *spi,
 	}
 	dev_info(dev, "FPGA loaded from %s Image\n", val ? "User" : "Factory");
 
-	/* set PKVL Polling manually in BBS */
-	ret = max10_reg_write(PKVL_POLLING_CTRL, 0x3);
-	if (ret != 0) {
-		dev_err(dev, "%s set PKVL polling fail\n", __func__);
-		goto spi_tran_fail;
-	}
-
 	return dev;
 
 spi_tran_fail:
-- 
2.17.1

Re: [dpdk-dev] [PATCH v4 5/5] raw/ifpga_rawdev/base: fix retimer link status issue

[Xu, Rosen]

> -----Original Message-----
> From: Zhang, Tianfei
> Sent: Friday, June 21, 2019 16:40
> To: dev@dpdk.org; Yigit, Ferruh <ferruh.yigit@intel.com>
> Cc: Xu, Rosen <rosen.xu@intel.com>; stable@dpdk.org; Zhang, Tianfei
> <tianfei.zhang@intel.com>
> Subject: [PATCH v4 5/5] raw/ifpga_rawdev/base: fix retimer link status issue
> 
> Fix the readout retimer link status incorrectly when we remove the linux
> intel-fpga-driver and run the DPDK application.
> The linux driver will stop the retimer when remove the kernel modules.
> 
> Fixes: 8a256bef ("raw/ifpga/base: add eth group driver")
> Cc: stable@dpdk.org
> 
> Reported-by: Sampath Amrutha <amrutha.sampath@intel.com>
> Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
> ---
>  .../raw/ifpga_rawdev/base/opae_eth_group.c    | 172 ++++++++++++++++++
>  .../raw/ifpga_rawdev/base/opae_eth_group.h    |   6 +
>  .../raw/ifpga_rawdev/base/opae_intel_max10.c  |   7 -
>  3 files changed, 178 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/raw/ifpga_rawdev/base/opae_eth_group.c
> b/drivers/raw/ifpga_rawdev/base/opae_eth_group.c
> index 8db6693b1..d189dd578 100644
> --- a/drivers/raw/ifpga_rawdev/base/opae_eth_group.c
> +++ b/drivers/raw/ifpga_rawdev/base/opae_eth_group.c
> @@ -113,6 +113,171 @@ int eth_group_read_reg(struct eth_group_device
> *dev,
>  	return 0;
>  }
> 
> +static int eth_group_reset_mac(struct eth_group_device *dev, u8 index,
> +			       bool enable)
> +{
> +	u32 val;
> +	int ret;
> +
> +	/*
> +	 * only support 25G & 40G mac reset for now. It uses internal reset.
> +	 * as PHY and MAC are integrated together, below action will trigger
> +	 * PHY reset too.
> +	 */
> +	if (dev->speed != 25 && dev->speed != 40)
> +		return 0;
> +
> +	ret = eth_group_read_reg(dev, ETH_GROUP_MAC, index,
> MAC_CONFIG,
> +				 &val);
> +	if (ret) {
> +		dev_err(dev, "fail to read PHY_CONFIG: %d\n", ret);
> +		return ret;
> +	}
> +
> +	/* skip if mac is in expected state already */
> +	if ((((val & MAC_RESET_MASK) == MAC_RESET_MASK) && enable) ||
> +	    (((val & MAC_RESET_MASK) == 0) && !enable))
> +		return 0;
> +
> +	if (enable)
> +		val |= MAC_RESET_MASK;
> +	else
> +		val &= ~MAC_RESET_MASK;
> +
> +	ret = eth_group_write_reg(dev, ETH_GROUP_MAC, index,
> MAC_CONFIG,
> +				  val);
> +	if (ret)
> +		dev_err(dev, "fail to write PHY_CONFIG: %d\n", ret);
> +
> +	return ret;
> +}
> +
> +static void eth_group_mac_uinit(struct eth_group_device *dev) {
> +	u8 i;
> +
> +	for (i = 0; i < dev->mac_num; i++) {
> +		if (eth_group_reset_mac(dev, i, true))
> +			dev_err(dev, "fail to disable mac %d\n", i);
> +	}
> +}
> +
> +static int eth_group_mac_init(struct eth_group_device *dev) {
> +	int ret;
> +	u8 i;
> +
> +	for (i = 0; i < dev->mac_num; i++) {
> +		ret = eth_group_reset_mac(dev, i, false);
> +		if (ret) {
> +			dev_err(dev, "fail to enable mac %d\n", i);
> +			goto exit;
> +		}
> +	}
> +
> +	return 0;
> +
> +exit:
> +	while (i--)
> +		eth_group_reset_mac(dev, i, true);
> +
> +	return ret;
> +}
> +
> +static int eth_group_reset_phy(struct eth_group_device *dev, u8 index,
> +		bool enable)
> +{
> +	u32 val;
> +	int ret;
> +
> +	/* only support 10G PHY reset for now. It uses external reset. */
> +	if (dev->speed != 10)
> +		return 0;
> +
> +	ret = eth_group_read_reg(dev, ETH_GROUP_PHY, index,
> +			ADD_PHY_CTRL, &val);
> +	if (ret) {
> +		dev_err(dev, "fail to read ADD_PHY_CTRL reg: %d\n", ret);
> +		return ret;
> +	}
> +
> +	/* return if PHY is already in expected state */
> +	if ((val & PHY_RESET && enable) || (!(val & PHY_RESET) && !enable))
> +		return 0;
> +
> +	if (enable)
> +		val |= PHY_RESET;
> +	else
> +		val &= ~PHY_RESET;
> +
> +	ret = eth_group_write_reg(dev, ETH_GROUP_PHY, index,
> +			ADD_PHY_CTRL, val);
> +	if (ret)
> +		dev_err(dev, "fail to write ADD_PHY_CTRL reg: %d\n", ret);
> +
> +	return ret;
> +}
> +
> +static int eth_group_phy_init(struct eth_group_device *dev) {
> +	int ret;
> +	int i;
> +
> +	for (i = 0; i < dev->phy_num; i++) {
> +		ret = eth_group_reset_phy(dev, i, false);
> +		if (ret) {
> +			dev_err(dev, "fail to enable phy %d\n", i);
> +			goto exit;
> +		}
> +	}
> +
> +	return 0;
> +exit:
> +	while (i--)
> +		eth_group_reset_phy(dev, i, true);
> +
> +	return ret;
> +}
> +
> +static void eth_group_phy_uinit(struct eth_group_device *dev) {
> +	int i;
> +
> +	for (i = 0; i < dev->phy_num; i++) {
> +		if (eth_group_reset_phy(dev, i, true))
> +			dev_err(dev, "fail to disable phy %d\n", i);
> +	}
> +}
> +
> +static int eth_group_hw_init(struct eth_group_device *dev) {
> +	int ret;
> +
> +	ret = eth_group_phy_init(dev);
> +	if (ret) {
> +		dev_err(dev, "fail to init eth group phys\n");
> +		return ret;
> +	}
> +
> +	ret = eth_group_mac_init(dev);
> +	if (ret) {
> +		dev_err(priv->dev, "fail to init eth group macs\n");
> +		goto phy_exit;
> +	}
> +
> +	return 0;
> +
> +phy_exit:
> +	eth_group_phy_uinit(dev);
> +	return ret;
> +}
> +
> +static void eth_group_hw_uinit(struct eth_group_device *dev) {
> +	eth_group_mac_uinit(dev);
> +	eth_group_phy_uinit(dev);
> +}
> +
>  struct eth_group_device *eth_group_probe(void *base)  {
>  	struct eth_group_device *dev;
> @@ -130,6 +295,11 @@ struct eth_group_device *eth_group_probe(void
> *base)
> 
>  	dev->status = ETH_GROUP_DEV_ATTACHED;
> 
> +	if (eth_group_hw_init(dev)) {
> +		dev_err(dev, "eth group hw init fail\n");
> +		return NULL;
> +	}
> +
>  	dev_info(dev, "eth group device %d probe done:
> phy_num=mac_num:%d, speed=%d\n",
>  			dev->group_id, dev->phy_num, dev->speed);
> 
> @@ -138,6 +308,8 @@ struct eth_group_device *eth_group_probe(void
> *base)
> 
>  void eth_group_release(struct eth_group_device *dev)  {
> +	eth_group_hw_uinit(dev);
> +
>  	if (dev) {
>  		dev->status = ETH_GROUP_DEV_NOUSED;
>  		opae_free(dev);
> diff --git a/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
> b/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
> index a66d77e27..4868bd0e1 100644
> --- a/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
> +++ b/drivers/raw/ifpga_rawdev/base/opae_eth_group.h
> @@ -44,6 +44,12 @@
>  #define STAT_DATA_VAL		BIT_ULL(32)
>  #define STAT_RD_DATA		GENMASK_ULL(31, 0)
> 
> +/* Additional Feature Register */
> +#define ADD_PHY_CTRL            0x0
> +#define PHY_RESET               BIT(0)
> +#define MAC_CONFIG      0x310
> +#define MAC_RESET_MASK  GENMASK(2, 0)
> +
>  struct opae_eth_group_info {
>  	u8 group_id;
>  	u8 speed;
> diff --git a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
> b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
> index 3ff6575d7..9ed10e282 100644
> --- a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
> +++ b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
> @@ -57,13 +57,6 @@ intel_max10_device_probe(struct altera_spi_device
> *spi,
>  	}
>  	dev_info(dev, "FPGA loaded from %s Image\n", val ? "User" :
> "Factory");
> 
> -	/* set PKVL Polling manually in BBS */
> -	ret = max10_reg_write(PKVL_POLLING_CTRL, 0x3);
> -	if (ret != 0) {
> -		dev_err(dev, "%s set PKVL polling fail\n", __func__);
> -		goto spi_tran_fail;
> -	}
> -
>  	return dev;
> 
>  spi_tran_fail:
> --
> 2.17.1

Acked-by: Rosen Xu <rosen.xu@intel.com>

Re: [dpdk-dev] [PATCH v4 1/5] raw/ifpga_rawdev: fix use of untrusted scalar value

[Xu, Rosen]

> -----Original Message-----
> From: Zhang, Tianfei
> Sent: Friday, June 21, 2019 16:40
> To: dev@dpdk.org; Yigit, Ferruh <ferruh.yigit@intel.com>
> Cc: Xu, Rosen <rosen.xu@intel.com>; stable@dpdk.org; Zhang, Tianfei
> <tianfei.zhang@intel.com>
> Subject: [PATCH v4 1/5] raw/ifpga_rawdev: fix use of untrusted scalar value
> 
> Add checking the buffer size and use
> const char * for buffer declaration.
> 
> Coverity issue: 279449
> Fixes: ef1e8ede ("raw/ifpga: add Intel FPGA bus rawdev driver")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
> Acked-by: Rosen Xu <rosen.xu@intel.com>
> ---
>  drivers/raw/ifpga_rawdev/base/ifpga_api.c     |  4 +--
>  drivers/raw/ifpga_rawdev/base/ifpga_api.h     |  2 +-
>  .../raw/ifpga_rawdev/base/ifpga_feature_dev.h |  2 +-
> drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c  | 27 +++++++++++--------
>  drivers/raw/ifpga_rawdev/base/opae_hw_api.c   |  4 +--
>  drivers/raw/ifpga_rawdev/base/opae_hw_api.h   |  4 +--
>  drivers/raw/ifpga_rawdev/ifpga_rawdev.c       |  7 ++++-
>  7 files changed, 30 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_api.c
> b/drivers/raw/ifpga_rawdev/base/ifpga_api.c
> index 3ddbcdc2a..53d101daf 100644
> --- a/drivers/raw/ifpga_rawdev/base/ifpga_api.c
> +++ b/drivers/raw/ifpga_rawdev/base/ifpga_api.c
> @@ -182,7 +182,7 @@ struct opae_bridge_ops ifpga_br_ops = {  };
> 
>  /* Manager APIs */
> -static int ifpga_mgr_flash(struct opae_manager *mgr, int id, void *buf,
> +static int ifpga_mgr_flash(struct opae_manager *mgr, int id, const char
> +*buf,
>  			   u32 size, u64 *status)
>  {
>  	struct ifpga_fme_hw *fme = mgr->data;
> @@ -324,7 +324,7 @@ struct opae_adapter_ops ifpga_adapter_ops = {
>   *   - 0: Success, partial reconfiguration finished.
>   *   - <0: Error code returned in partial reconfiguration.
>   **/
> -int ifpga_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
> +int ifpga_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, u32
> +size,
>  	     u64 *status)
>  {
>  	if (!is_valid_port_id(hw, port_id))
> diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_api.h
> b/drivers/raw/ifpga_rawdev/base/ifpga_api.h
> index 4a247698c..051ab8276 100644
> --- a/drivers/raw/ifpga_rawdev/base/ifpga_api.h
> +++ b/drivers/raw/ifpga_rawdev/base/ifpga_api.h
> @@ -23,7 +23,7 @@ int ifpga_set_irq(struct ifpga_hw *hw, u32 fiu_id, u32
> port_id,
>  		  u32 feature_id, void *irq_set);
> 
>  /* FME APIs */
> -int ifpga_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
> +int ifpga_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, u32
> +size,
>  	     u64 *status);
> 
>  #endif /* _IFPGA_API_H_ */
> diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h
> b/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h
> index bb9fcc289..e243d4273 100644
> --- a/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h
> +++ b/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h
> @@ -149,7 +149,7 @@ static inline int fpga_port_reset(struct ifpga_port_hw
> *port)
>  	return ret;
>  }
> 
> -int do_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
> +int do_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, u32
> +size,
>  	  u64 *status);
> 
>  int fme_get_prop(struct ifpga_fme_hw *fme, struct feature_prop *prop);
> diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c
> b/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c
> index efa72660f..9997942d2 100644
> --- a/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c
> +++ b/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c
> @@ -223,8 +223,8 @@ static int fpga_pr_buf_load(struct ifpga_fme_hw
> *fme_dev,
>  	return 0;
>  }
> 
> -static int fme_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
> -		  u64 *status)
> +static int fme_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer,
> +		u32 size, u64 *status)
>  {
>  	struct feature_fme_header *fme_hdr;
>  	struct feature_fme_capability fme_capability; @@ -269,7 +269,7 @@
> static int fme_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size,
>  	/* Disable Port before PR */
>  	fpga_port_disable(port);
> 
> -	ret = fpga_pr_buf_load(fme, &info, (void *)buffer, size);
> +	ret = fpga_pr_buf_load(fme, &info, buffer, size);
> 
>  	*status = info.pr_err;
> 
> @@ -280,27 +280,32 @@ static int fme_pr(struct ifpga_hw *hw, u32 port_id,
> void *buffer, u32 size,
>  	return ret;
>  }
> 
> -int do_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size, u64
> *status)
> +int do_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer,
> +		u32 size, u64 *status)
>  {
> -	struct bts_header *bts_hdr;
> -	void *buf;
> +	const struct bts_header *bts_hdr;
> +	const char *buf;
>  	struct ifpga_port_hw *port;
>  	int ret;
> +	u32 header_size;
> 
>  	if (!buffer || size == 0) {
>  		dev_err(hw, "invalid parameter\n");
>  		return -EINVAL;
>  	}
> 
> -	bts_hdr = (struct bts_header *)buffer;
> +	bts_hdr = (const struct bts_header *)buffer;
> 
>  	if (is_valid_bts(bts_hdr)) {
>  		dev_info(hw, "this is a valid bitsteam..\n");
> -		size -= (sizeof(struct bts_header) +
> -				     bts_hdr->metadata_len);
> -		buf = (u8 *)buffer + sizeof(struct bts_header) +
> -			       bts_hdr->metadata_len;
> +		header_size = sizeof(struct bts_header) +
> +			bts_hdr->metadata_len;
> +		if (size < header_size)
> +			return -EINVAL;
> +		size -= header_size;
> +		buf = buffer + header_size;
>  	} else {
> +		dev_err(hw, "this is an invalid bitstream..\n");
>  		return -EINVAL;
>  	}
> 
> diff --git a/drivers/raw/ifpga_rawdev/base/opae_hw_api.c
> b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c
> index 0e117d05e..8964e7984 100644
> --- a/drivers/raw/ifpga_rawdev/base/opae_hw_api.c
> +++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c
> @@ -244,8 +244,8 @@ opae_manager_alloc(const char *name, struct
> opae_manager_ops *ops,
>   *
>   * Return: 0 on success, otherwise error code.
>   */
> -int opae_manager_flash(struct opae_manager *mgr, int id, void *buf, u32
> size,
> -		       u64 *status)
> +int opae_manager_flash(struct opae_manager *mgr, int id, const char *buf,
> +		u32 size, u64 *status)
>  {
>  	if (!mgr)
>  		return -EINVAL;
> diff --git a/drivers/raw/ifpga_rawdev/base/opae_hw_api.h
> b/drivers/raw/ifpga_rawdev/base/opae_hw_api.h
> index 383e751cb..63405a471 100644
> --- a/drivers/raw/ifpga_rawdev/base/opae_hw_api.h
> +++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.h
> @@ -44,7 +44,7 @@ struct opae_manager {
> 
>  /* FIXME: add more management ops, e.g power/thermal and etc */  struct
> opae_manager_ops {
> -	int (*flash)(struct opae_manager *mgr, int id, void *buffer,
> +	int (*flash)(struct opae_manager *mgr, int id, const char *buffer,
>  		     u32 size, u64 *status);
>  	int (*get_eth_group_region_info)(struct opae_manager *mgr,
>  			struct opae_eth_group_region_info *info); @@ -74,7
> +74,7 @@ struct opae_manager *  opae_manager_alloc(const char *name,
> struct opae_manager_ops *ops,
>  		struct opae_manager_networking_ops *network_ops, void
> *data);  #define opae_manager_free(mgr) opae_free(mgr) -int
> opae_manager_flash(struct opae_manager *mgr, int acc_id, void *buf,
> +int opae_manager_flash(struct opae_manager *mgr, int acc_id, const char
> +*buf,
>  		       u32 size, u64 *status);
>  int opae_manager_get_eth_group_region_info(struct opae_manager *mgr,
>  		u8 group_id, struct opae_eth_group_region_info *info); diff -
> -git a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> index 41be1a205..01aa917de 100644
> --- a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> +++ b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> @@ -225,7 +225,7 @@ ifpga_rawdev_reset(struct rte_rawdev *dev)  }
> 
>  static int
> -fpga_pr(struct rte_rawdev *raw_dev, u32 port_id, u64 *buffer, u32 size,
> +fpga_pr(struct rte_rawdev *raw_dev, u32 port_id, const char *buffer,
> +u32 size,
>  			u64 *status)
>  {
> 
> @@ -296,6 +296,11 @@ rte_fpga_do_pr(struct rte_rawdev *rawdev, int
> port_id,
>  		goto close_fd;
>  	}
>  	buffer_size = file_stat.st_size;
> +	if (buffer_size <= 0) {
> +		ret = -EINVAL;
> +		goto close_fd;
> +	}
> +
>  	IFPGA_RAWDEV_PMD_INFO("bitstream file size: %zu\n", buffer_size);
>  	buffer = rte_malloc(NULL, buffer_size, 0);
>  	if (!buffer) {
> --
> 2.17.1

Acked-by: Rosen Xu <rosen.xu@intel.com>

Re: [dpdk-dev] [PATCH v4 1/5] raw/ifpga_rawdev: fix use of untrusted scalar value

[Thomas Monjalon]

Series applied, thanks