[dpdk-dev] [PATCH] drivers/net: fix FW version get

Ajit Khaparde ajit.khaparde at broadcom.com
Wed Apr 21 18:30:12 CEST 2021


On Wed, Apr 21, 2021 at 9:21 AM Ferruh Yigit <ferruh.yigit at intel.com> wrote:
>
> Fixes a few different things:
> * Remove 'fw_version' NULL checks, it is allowed if the 'fw_size' is
>   zero, 'fw_version' being NULL but 'fw_size' not zero condition checked
>   in ethdev layer
> * Be sure required buffer size is returned if provided one is not big
>   enough, instead of returning success (0)
> * Document in doxygen comment the '-EINVAL' is a valid return type
> * Take into account that 'snprintf' can return negative value
> * Cast length to 'size_t' to compare it with 'fw_size'
>
> Fixes: bb42aa9ffe4e ("net/atlantic: configure device start/stop")
> Fixes: ff70acdf4299 ("net/axgbe: support reading FW version")
> Fixes: e2652b0a20a0 ("net/bnxt: support get FW version")
> Fixes: cf0fab1d2ca5 ("net/dpaa: support firmware version get API")
> Fixes: 748eccb97cdc ("net/dpaa2: add support for firmware version get")
> Fixes: b883c0644a24 ("net/e1000: add firmware version get")
> Fixes: 293430677e9c ("net/enic: add handler to return firmware version")
> Fixes: 1f5ca0b460cd ("net/hns3: support some device operations")
> Fixes: bd5b86732bc7 ("net/hns3: modify format for firmware version")
> Fixes: ed0dfdd0e976 ("net/i40e: add firmware version get")
> Fixes: e31cb9a36298 ("net/ice: support FW version getting")
> Fixes: 4f09bc55ac3d ("net/igc: implement device base operations")
> Fixes: eec10fb0ce6b ("net/ionic: support FW version")
> Fixes: 8b0b56574269 ("net/ixgbe: add firmware version get")
> Fixes: 4d9f5b8adc02 ("net/octeontx2: add FW version get operation")
> Fixes: f97b56f9f12e ("net/qede: support FW version query")
> Fixes: 83fef46a22b2 ("net/sfc: add callback to retrieve FW version")
> Fixes: bc84ac0fadef ("net/txgbe: support getting FW version")
> Fixes: 21913471202f ("ethdev: add firmware version get")
> Cc: stable at dpdk.org
>
> Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
Thanks!
For bnxt,
Acked-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
> ---
> Cc: pavel.belous at aquantia.com
> Cc: selwin.sebastian at amd.com
> Cc: hemant.agrawal at nxp.com
> Cc: qiming.yang at intel.com
> Cc: hyonkim at cisco.com
> Cc: xavier.huwei at huawei.com
> Cc: wenzhuo.lu at intel.com
> Cc: alvinx.zhang at intel.com
> Cc: cardigliano at ntop.org
> Cc: vattunuru at marvell.com
> Cc: rmody at marvell.com
> Cc: ivan.malov at oktetlabs.ru
> Cc: jiawenwu at trustnetic.com
> ---
>  drivers/net/atlantic/atl_ethdev.c       |  7 ++++---
>  drivers/net/axgbe/axgbe_rxtx.c          |  4 ----
>  drivers/net/bnxt/bnxt_ethdev.c          |  4 +++-
>  drivers/net/dpaa/dpaa_ethdev.c          |  6 ++++--
>  drivers/net/dpaa2/dpaa2_ethdev.c        |  4 +++-
>  drivers/net/e1000/igb_ethdev.c          |  4 +++-
>  drivers/net/enic/enic_ethdev.c          | 15 ++++++++++-----
>  drivers/net/hns3/hns3_ethdev.c          |  5 ++++-
>  drivers/net/hns3/hns3_ethdev_vf.c       |  5 ++++-
>  drivers/net/i40e/i40e_ethdev.c          |  4 +++-
>  drivers/net/ice/ice_ethdev.c            |  4 +++-
>  drivers/net/igc/igc_ethdev.c            |  4 +++-
>  drivers/net/ionic/ionic_ethdev.c        | 15 +++++++++------
>  drivers/net/ixgbe/ixgbe_ethdev.c        |  4 +++-
>  drivers/net/octeontx2/otx2_ethdev_ops.c |  2 +-
>  drivers/net/qede/qede_ethdev.c          |  3 ---
>  drivers/net/sfc/sfc_ethdev.c            |  8 --------
>  drivers/net/txgbe/txgbe_ethdev.c        |  4 +++-
>  lib/librte_ethdev/rte_ethdev.h          |  1 +
>  19 files changed, 61 insertions(+), 42 deletions(-)
>
> diff --git a/drivers/net/atlantic/atl_ethdev.c b/drivers/net/atlantic/atl_ethdev.c
> index 473f6209f6aa..ce7f814f255d 100644
> --- a/drivers/net/atlantic/atl_ethdev.c
> +++ b/drivers/net/atlantic/atl_ethdev.c
> @@ -1073,7 +1073,7 @@ atl_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
>  {
>         struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
>         uint32_t fw_ver = 0;
> -       unsigned int ret = 0;
> +       int ret = 0;
>
>         ret = hw_atl_utils_get_fw_version(hw, &fw_ver);
>         if (ret)
> @@ -1081,10 +1081,11 @@ atl_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
>
>         ret = snprintf(fw_version, fw_size, "%u.%u.%u", fw_ver >> 24,
>                        (fw_ver >> 16) & 0xFFU, fw_ver & 0xFFFFU);
> +       if (ret < 0)
> +               return -EINVAL;
>
>         ret += 1; /* add string null-terminator */
> -
> -       if (fw_size < ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>
>         return 0;
> diff --git a/drivers/net/axgbe/axgbe_rxtx.c b/drivers/net/axgbe/axgbe_rxtx.c
> index e34bb6d448fc..33f709a6bb02 100644
> --- a/drivers/net/axgbe/axgbe_rxtx.c
> +++ b/drivers/net/axgbe/axgbe_rxtx.c
> @@ -623,9 +623,6 @@ int axgbe_dev_fw_version_get(struct rte_eth_dev *eth_dev,
>         pdata = (struct axgbe_port *)eth_dev->data->dev_private;
>         hw_feat = &pdata->hw_feat;
>
> -       if (fw_version == NULL)
> -               return -EINVAL;
> -
>         ret = snprintf(fw_version, fw_size, "%d.%d.%d",
>                         AXGMAC_GET_BITS(hw_feat->version, MAC_VR, USERVER),
>                         AXGMAC_GET_BITS(hw_feat->version, MAC_VR, DEVID),
> @@ -634,7 +631,6 @@ int axgbe_dev_fw_version_get(struct rte_eth_dev *eth_dev,
>                 return -EINVAL;
>
>         ret += 1; /* add the size of '\0' */
> -
>         if (fw_size < (size_t)ret)
>                 return ret;
>         else
> diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
> index f5d2dc85907d..dba5b9f94df4 100644
> --- a/drivers/net/bnxt/bnxt_ethdev.c
> +++ b/drivers/net/bnxt/bnxt_ethdev.c
> @@ -2794,9 +2794,11 @@ bnxt_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
>
>         ret = snprintf(fw_version, fw_size, "%d.%d.%d.%d",
>                         fw_major, fw_minor, fw_updt, fw_rsvd);
> +       if (ret < 0)
> +               return -EINVAL;
>
>         ret += 1; /* add the size of '\0' */
> -       if (fw_size < (uint32_t)ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c
> index 176943a8eae6..57ee660c5e57 100644
> --- a/drivers/net/dpaa/dpaa_ethdev.c
> +++ b/drivers/net/dpaa/dpaa_ethdev.c
> @@ -532,9 +532,11 @@ dpaa_fw_version_get(struct rte_eth_dev *dev __rte_unused,
>
>         ret = snprintf(fw_version, fw_size, "SVR:%x-fman-v%x",
>                        svr_ver, fman_ip_rev);
> -       ret += 1; /* add the size of '\0' */
> +       if (ret < 0)
> +               return -EINVAL;
>
> -       if (fw_size < (uint32_t)ret)
> +       ret += 1; /* add the size of '\0' */
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c
> index 9011dcfc1242..95e8d9abe869 100644
> --- a/drivers/net/dpaa2/dpaa2_ethdev.c
> +++ b/drivers/net/dpaa2/dpaa2_ethdev.c
> @@ -226,9 +226,11 @@ dpaa2_fw_version_get(struct rte_eth_dev *dev,
>                        mc_ver_info.major,
>                        mc_ver_info.minor,
>                        mc_ver_info.revision);
> +       if (ret < 0)
> +               return -EINVAL;
>
>         ret += 1; /* add the size of '\0' */
> -       if (fw_size < (uint32_t)ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
> index 3fdffe329483..10ee0f33415a 100644
> --- a/drivers/net/e1000/igb_ethdev.c
> +++ b/drivers/net/e1000/igb_ethdev.c
> @@ -2159,9 +2159,11 @@ eth_igb_fw_version_get(struct rte_eth_dev *dev, char *fw_version,
>                 }
>                 break;
>         }
> +       if (ret < 0)
> +               return -EINVAL;
>
>         ret += 1; /* add the size of '\0' */
> -       if (fw_size < (u32)ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/drivers/net/enic/enic_ethdev.c b/drivers/net/enic/enic_ethdev.c
> index d91c2cdc8c54..e1a393b84762 100644
> --- a/drivers/net/enic/enic_ethdev.c
> +++ b/drivers/net/enic/enic_ethdev.c
> @@ -1050,16 +1050,21 @@ static int enicpmd_dev_fw_version_get(struct rte_eth_dev *eth_dev,
>         int ret;
>
>         ENICPMD_FUNC_TRACE();
> -       if (fw_version == NULL || fw_size <= 0)
> -               return -EINVAL;
> +
>         enic = pmd_priv(eth_dev);
>         ret = vnic_dev_fw_info(enic->vdev, &info);
>         if (ret)
>                 return ret;
> -       snprintf(fw_version, fw_size, "%s %s",
> +       ret = snprintf(fw_version, fw_size, "%s %s",
>                  info->fw_version, info->fw_build);
> -       fw_version[fw_size - 1] = '\0';
> -       return 0;
> +       if (ret < 0)
> +               return -EINVAL;
> +
> +       ret += 1; /* add the size of '\0' */
> +       if (fw_size < (size_t)ret)
> +               return ret;
> +       else
> +               return 0;
>  }
>
>  static const struct eth_dev_ops enicpmd_eth_dev_ops = {
> diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
> index 60267e1ec115..bd0699af5844 100644
> --- a/drivers/net/hns3/hns3_ethdev.c
> +++ b/drivers/net/hns3/hns3_ethdev.c
> @@ -2828,8 +2828,11 @@ hns3_fw_version_get(struct rte_eth_dev *eth_dev, char *fw_version,
>                                       HNS3_FW_VERSION_BYTE1_S),
>                        hns3_get_field(version, HNS3_FW_VERSION_BYTE0_M,
>                                       HNS3_FW_VERSION_BYTE0_S));
> +       if (ret < 0)
> +               return -EINVAL;
> +
>         ret += 1; /* add the size of '\0' */
> -       if (fw_size < (uint32_t)ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
> index 7a7a6bfa7cc0..06a26fb9be92 100644
> --- a/drivers/net/hns3/hns3_ethdev_vf.c
> +++ b/drivers/net/hns3/hns3_ethdev_vf.c
> @@ -2181,8 +2181,11 @@ hns3vf_fw_version_get(struct rte_eth_dev *eth_dev, char *fw_version,
>                                       HNS3_FW_VERSION_BYTE1_S),
>                        hns3_get_field(version, HNS3_FW_VERSION_BYTE0_M,
>                                       HNS3_FW_VERSION_BYTE0_S));
> +       if (ret < 0)
> +               return -EINVAL;
> +
>         ret += 1; /* add the size of '\0' */
> -       if (fw_size < (uint32_t)ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
> index e6206a7e5100..66d23d698ea0 100644
> --- a/drivers/net/i40e/i40e_ethdev.c
> +++ b/drivers/net/i40e/i40e_ethdev.c
> @@ -3687,9 +3687,11 @@ i40e_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
>                  ((hw->nvm.version >> 4) & 0xff),
>                  (hw->nvm.version & 0xf), hw->nvm.eetrack,
>                  ver, build, patch);
> +       if (ret < 0)
> +               return -EINVAL;
>
>         ret += 1; /* add the size of '\0' */
> -       if (fw_size < (u32)ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
> index da9e85bd7c9e..c37a2e09ceb0 100644
> --- a/drivers/net/ice/ice_ethdev.c
> +++ b/drivers/net/ice/ice_ethdev.c
> @@ -4646,10 +4646,12 @@ ice_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
>                         hw->flash.nvm.minor,
>                         hw->flash.nvm.eetrack,
>                         ver, build, patch);
> +       if (ret < 0)
> +               return -EINVAL;
>
>         /* add the size of '\0' */
>         ret += 1;
> -       if (fw_size < (u32)ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/drivers/net/igc/igc_ethdev.c b/drivers/net/igc/igc_ethdev.c
> index 31c99dca099f..b1c58fb3deb9 100644
> --- a/drivers/net/igc/igc_ethdev.c
> +++ b/drivers/net/igc/igc_ethdev.c
> @@ -1476,9 +1476,11 @@ eth_igc_fw_version_get(struct rte_eth_dev *dev, char *fw_version,
>                                  fw.eep_build);
>                 }
>         }
> +       if (ret < 0)
> +               return -EINVAL;
>
>         ret += 1; /* add the size of '\0' */
> -       if (fw_size < (u32)ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/drivers/net/ionic/ionic_ethdev.c b/drivers/net/ionic/ionic_ethdev.c
> index cffe899c078c..5ec474dbf539 100644
> --- a/drivers/net/ionic/ionic_ethdev.c
> +++ b/drivers/net/ionic/ionic_ethdev.c
> @@ -215,15 +215,18 @@ ionic_dev_fw_version_get(struct rte_eth_dev *eth_dev,
>  {
>         struct ionic_lif *lif = IONIC_ETH_DEV_TO_LIF(eth_dev);
>         struct ionic_adapter *adapter = lif->adapter;
> +       int ret;
>
> -       if (fw_version == NULL || fw_size <= 0)
> -               return -EINVAL;
> -
> -       snprintf(fw_version, fw_size, "%s",
> +       ret = snprintf(fw_version, fw_size, "%s",
>                  adapter->fw_version);
> -       fw_version[fw_size - 1] = '\0';
> +       if (ret < 0)
> +               return -EINVAL;
>
> -       return 0;
> +       ret += 1; /* add the size of '\0' */
> +       if (fw_size < (size_t)ret)
> +               return ret;
> +       else
> +               return 0;
>  }
>
>  /*
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
> index ff65145f5526..a5c191fe1b17 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> @@ -3814,9 +3814,11 @@ ixgbe_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
>
>         etrack_id = (eeprom_verh << 16) | eeprom_verl;
>         ret = snprintf(fw_version, fw_size, "0x%08x", etrack_id);
> +       if (ret < 0)
> +               return -EINVAL;
>
>         ret += 1; /* add the size of '\0' */
> -       if (fw_size < (u32)ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/drivers/net/octeontx2/otx2_ethdev_ops.c b/drivers/net/octeontx2/otx2_ethdev_ops.c
> index 6f0cdc585422..5a4501208e9e 100644
> --- a/drivers/net/octeontx2/otx2_ethdev_ops.c
> +++ b/drivers/net/octeontx2/otx2_ethdev_ops.c
> @@ -453,7 +453,7 @@ otx2_nix_fw_version_get(struct rte_eth_dev *eth_dev, char *fw_version,
>         rc = strlcpy(fw_version, (char *)dev->mkex_pfl_name, rc);
>
>         rc += 1; /* Add the size of '\0' */
> -       if (fw_size < (uint32_t)rc)
> +       if (fw_size < (size_t)rc)
>                 return rc;
>
>         return 0;
> diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
> index 057a7b00e2dc..c2c8de867501 100644
> --- a/drivers/net/qede/qede_ethdev.c
> +++ b/drivers/net/qede/qede_ethdev.c
> @@ -237,9 +237,6 @@ qede_fw_version_get(struct rte_eth_dev *dev, char *fw_ver, size_t fw_size)
>         static char ver_str[QEDE_PMD_DRV_VER_STR_SIZE];
>         size_t size;
>
> -       if (fw_ver == NULL)
> -               return 0;
> -
>         if (IS_PF(edev))
>                 snprintf(ver_str, QEDE_PMD_DRV_VER_STR_SIZE, "%s",
>                          QEDE_PMD_FW_VERSION);
> diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
> index 52ba7b67b052..c50ecea0b993 100644
> --- a/drivers/net/sfc/sfc_ethdev.c
> +++ b/drivers/net/sfc/sfc_ethdev.c
> @@ -46,14 +46,6 @@ sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
>         int ret;
>         int rc;
>
> -       /*
> -        * Return value of the callback is likely supposed to be
> -        * equal to or greater than 0, nevertheless, if an error
> -        * occurs, it will be desirable to pass it to the caller
> -        */
> -       if ((fw_version == NULL) || (fw_size == 0))
> -               return -EINVAL;
> -
>         rc = efx_nic_get_fw_version(sa->nic, &enfi);
>         if (rc != 0)
>                 return -rc;
> diff --git a/drivers/net/txgbe/txgbe_ethdev.c b/drivers/net/txgbe/txgbe_ethdev.c
> index 97796f040b43..8dbe3da5c2c9 100644
> --- a/drivers/net/txgbe/txgbe_ethdev.c
> +++ b/drivers/net/txgbe/txgbe_ethdev.c
> @@ -2582,9 +2582,11 @@ txgbe_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
>         hw->phy.get_fw_version(hw, &etrack_id);
>
>         ret = snprintf(fw_version, fw_size, "0x%08x", etrack_id);
> +       if (ret < 0)
> +               return -EINVAL;
>
>         ret += 1; /* add the size of '\0' */
> -       if (fw_size < (u32)ret)
> +       if (fw_size < (size_t)ret)
>                 return ret;
>         else
>                 return 0;
> diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
> index a0d01d26675f..80841b44b680 100644
> --- a/lib/librte_ethdev/rte_ethdev.h
> +++ b/lib/librte_ethdev/rte_ethdev.h
> @@ -3069,6 +3069,7 @@ int rte_eth_dev_info_get(uint16_t port_id, struct rte_eth_dev_info *dev_info);
>   *   - (-ENOTSUP) if operation is not supported.
>   *   - (-ENODEV) if *port_id* invalid.
>   *   - (-EIO) if device is removed.
> + *   - (-EINVAL) if failed to get version.
>   *   - (>0) if *fw_size* is not enough to store firmware version, return
>   *          the size of the non truncated string.
>   */
> --
> 2.30.2
>


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