> 
> From: Ido Goshen <i...@cgstowernetworks.com>
> 
> 10BASE-T SFP+ copper transceivers become cheaper and popular
> So far those were blocked by ixgbe as “unsupported”.
> e.g.
>       eth_ixgbe_dev_init(): Unsupported SFP+ Module
>       eth_ixgbe_dev_init(): Hardware Initialization Failure: -19
>       EAL: Requested device 0000:0a:00.0 cannot be used
> 
> This patch expands the usage of allow_unsupported_sfp to be more general
> and makes ixgbe more tolerant to unknown SFPs


I don't think it is a good idea to change the base code to blindly allow 
unknown SFPs.
Again in eth_ixgbe_dev_init() we do set 
hw->allow_unsupported_sfp = 1;
so the function below will return success anyway,

> 
> Signed-off-by: Ido Goshen <i...@cgstowernetworks.com>
> ---
>  drivers/net/ixgbe/base/ixgbe_phy.c  | 22 +++++++++++-----------
>  drivers/net/ixgbe/base/ixgbe_x550.c |  3 +++
>  2 files changed, 14 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/net/ixgbe/base/ixgbe_phy.c 
> b/drivers/net/ixgbe/base/ixgbe_phy.c
> index dd118f9..ff96afc 100644
> --- a/drivers/net/ixgbe/base/ixgbe_phy.c
> +++ b/drivers/net/ixgbe/base/ixgbe_phy.c
> @@ -1527,18 +1527,9 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw 
> *hw)
>                       if (hw->phy.type == ixgbe_phy_sfp_intel) {
>                               status = IXGBE_SUCCESS;
>                       } else {
> -                             if (hw->allow_unsupported_sfp == true) {
> -                                     EWARN(hw,
> -                                             "WARNING: Intel (R) Network 
> Connections are quality tested using Intel (R) Ethernet
> Optics. "
> -                                             "Using untested modules is not 
> supported and may cause unstable operation or damage
> to the module or the adapter. "
> -                                             "Intel Corporation is not 
> responsible for any harm caused by using untested modules.\n");
> -                                     status = IXGBE_SUCCESS;
> -                             } else {
> -                                     DEBUGOUT("SFP+ module not supported\n");
> -                                     hw->phy.type =
> +                             hw->phy.type =
>                                               ixgbe_phy_sfp_unsupported;
> -                                     status = IXGBE_ERR_SFP_NOT_SUPPORTED;
> -                             }
> +                             status = IXGBE_ERR_SFP_NOT_SUPPORTED;
>                       }
>               } else {
>                       status = IXGBE_SUCCESS;
> @@ -1546,6 +1537,15 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw 
> *hw)
>       }
> 
>  out:
> +     if (status == IXGBE_ERR_SFP_NOT_SUPPORTED &&
> +                     hw->allow_unsupported_sfp) {
> +             PMD_INIT_LOG(WARNING,
> +                             "WARNING: Intel (R) Network Connections are 
> quality tested using Intel (R) Ethernet Optics. "
> +                             "Using untested modules is not supported and 
> may cause unstable operation or damage to the module or
> the adapter. "
> +                             "Intel Corporation is not responsible for any 
> harm caused by using untested modules.\n");
> +             hw->phy.type = ixgbe_phy_unknown;
> +             status = IXGBE_SUCCESS;
> +     }
>       return status;
> 
>  err_read_i2c_eeprom:
> diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c 
> b/drivers/net/ixgbe/base/ixgbe_x550.c
> index a920a14..212d9a0 100644
> --- a/drivers/net/ixgbe/base/ixgbe_x550.c
> +++ b/drivers/net/ixgbe/base/ixgbe_x550.c
> @@ -1539,6 +1539,9 @@ STATIC s32 ixgbe_supported_sfp_modules_X550em(struct 
> ixgbe_hw *hw, bool *linear)
>               *linear = false;
>               break;
>       case ixgbe_sfp_type_unknown:
> +             if (hw->allow_unsupported_sfp)
> +                     return IXGBE_SUCCESS;
> +             /* fall through */
>       case ixgbe_sfp_type_1g_cu_core0:
>       case ixgbe_sfp_type_1g_cu_core1:
>       default:
> --
> 1.9.1

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