i40e/base: remove code for TPH

The code wrapped in '#ifdef I40E_TPH_SUPPORT' was added
to check if 'TPH' (TLP Processing Hints) is supported, and enable it.
It is not used currently and can be removed.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
Reviewed-by: Chen Jing <jing.d.chen@intel.com>
Tested-by: HuilongX Xu <huilongx.xu@intel.com>

diff --git a/lib/librte_pmd_i40e/i40e/i40e_common.c b/lib/librte_pmd_i40e/i40e/i40e_common.c
index 4f11542..7e750ec 100644 (file)
--- a/lib/librte_pmd_i40e/i40e/i40e_common.c
+++ b/lib/librte_pmd_i40e/i40e/i40e_common.c
@@ -542,61 +542,6 @@ struct i40e_rx_ptype_decoded i40e_ptype_lookup[] = {
        I40E_PTT_UNUSED_ENTRY(255)
 };
 
-#ifdef I40E_TPH_SUPPORT
-
-/**
- * i40e_tph_present
- * @hw: pointer to the hw struct
- *
- * Check to see if TPH capability is present.
- **/
-bool i40e_tph_present(struct i40e_hw *hw)
-{
-       u32 capsup = rd32(hw, I40E_GLPCI_CAPSUP);
-
-       return capsup & I40E_GLPCI_CAPSUP_TPH_EN_MASK;
-}
-
-/**
- * i40e_enable_tph
- * @hw: pointer to the hw struct
- * @tph_control: contents of TPH Requester Control Register
- *
- * Check to see if TPH can be enabled; if so, enable it.
- **/
-bool i40e_enable_tph(struct i40e_hw *hw, u32 tph_control)
-{
-       u32 gltph, st_mode, permit;
-
-       /* check that TPH is permitted */
-       permit = (tph_control & I40E_TPH_REQ_ENA_MASK)
-                >> I40E_TPH_REQ_ENA_SHIFT;
-       if (!(permit & I40E_TPH_REQ_PERMIT))
-               return false;
-
-       /* check for valid ST mode */
-       st_mode = tph_control & I40E_TPH_ST_MODE_MASK;
-       if ((st_mode != I40E_TPH_MODE_NOTABLE) &&
-           (st_mode != I40E_TPH_MODE_DEVSPEC))
-               return false;
-
-       /* TPH may be enabled */
-       gltph = rd32(hw, I40E_GLTPH_CTRL);
-
-       /* turn off device-specific */
-       if (st_mode != I40E_TPH_MODE_DEVSPEC)
-               gltph &= ~I40E_GLTPH_CTRL_TPH_DEVSPEC_MASK;
-
-       /* This enables TPH for all queues for the given types of operation.
-        * Additional enabling is done per-queue in setup of the queue contexts.
-        */
-       gltph |= I40E_GLTPH_CTRL_DESC_PH_MASK; /* descriptor reads/writes */
-       gltph |= I40E_GLTPH_CTRL_DATA_PH_MASK; /* data reads/writes */
-       wr32(hw, I40E_GLTPH_CTRL, gltph);
-
-       return true;
-}
-#endif /* I40E_TPH_SUPPORT */
 #ifndef VF_DRIVER
 
 /**