[dpdk-dev] [PATCH] net/ixgbe: 10GBASE-T SFP+ copper support
Ananyev, Konstantin
konstantin.ananyev at intel.com
Wed Apr 24 13:47:23 CEST 2019
>
> From: Ido Goshen <ido at 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 <ido at 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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