Imported Upstream version 17.05

Change-Id: Id1e419c5a214e4a18739663b91f0f9a549f1fdc6
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

1 files changed, 240 insertions, 0 deletions

diff --git a/drivers/net/ixgbe/base/ixgbe_hv_vf.c b/drivers/net/ixgbe/base/ixgbe_hv_vf.c
new file mode 100644
index 00000000..47143a26
--- /dev/null
+++ b/drivers/net/ixgbe/base/ixgbe_hv_vf.c
@@ -0,0 +1,240 @@
+/*******************************************************************************
+
+Copyright (c) 2001-2015, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+    this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+
+ 3. Neither the name of the Intel Corporation nor the names of its
+    contributors may be used to endorse or promote products derived from
+    this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+***************************************************************************/
+
+#include "ixgbe_vf.h"
+#include "ixgbe_hv_vf.h"
+
+/**
+ * Hyper-V variant - just a stub.
+ */
+static s32 ixgbevf_hv_update_mc_addr_list_vf(struct ixgbe_hw *hw, u8 *mc_addr_list,
+				 u32 mc_addr_count, ixgbe_mc_addr_itr next,
+				 bool clear)
+{
+	UNREFERENCED_5PARAMETER(hw, mc_addr_list, mc_addr_count, next, clear);
+
+	return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
+}
+
+/**
+ * Hyper-V variant - just a stub.
+ */
+static s32 ixgbevf_hv_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode)
+{
+	UNREFERENCED_2PARAMETER(hw, xcast_mode);
+
+	return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
+}
+
+/**
+ * Hyper-V variant - just a stub.
+ */
+static s32 ixgbevf_hv_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
+				  bool vlan_on, bool vlvf_bypass)
+{
+	UNREFERENCED_5PARAMETER(hw, vlan, vind, vlan_on, vlvf_bypass);
+
+	return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
+}
+
+static s32 ixgbevf_hv_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr)
+{
+	UNREFERENCED_3PARAMETER(hw, index, addr);
+
+	return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
+}
+
+/**
+ * Hyper-V variant - just a stub.
+ */
+static s32 ixgbevf_hv_reset_hw_vf(struct ixgbe_hw *hw)
+{
+	UNREFERENCED_PARAMETER(hw);
+
+	return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
+}
+
+/**
+ * Hyper-V variant - just a stub.
+ */
+static s32 ixgbevf_hv_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vlan, u32 vind)
+{
+	UNREFERENCED_5PARAMETER(hw, index, addr, vlan, vind);
+
+	return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
+}
+
+/**
+ * Hyper-V variant; there is no mailbox communication.
+ */
+static s32 ixgbevf_hv_check_mac_link_vf(struct ixgbe_hw *hw,
+					ixgbe_link_speed *speed,
+					bool *link_up,
+					bool autoneg_wait_to_complete)
+{
+	struct ixgbe_mbx_info *mbx = &hw->mbx;
+	struct ixgbe_mac_info *mac = &hw->mac;
+	u32 links_reg;
+	UNREFERENCED_1PARAMETER(autoneg_wait_to_complete);
+
+	/* If we were hit with a reset drop the link */
+	if (!mbx->ops.check_for_rst(hw, 0) || !mbx->timeout)
+		mac->get_link_status = true;
+
+	if (!mac->get_link_status)
+		goto out;
+
+	/* if link status is down no point in checking to see if pf is up */
+	links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
+	if (!(links_reg & IXGBE_LINKS_UP))
+		goto out;
+
+	/* for SFP+ modules and DA cables on 82599 it can take up to 500usecs
+	 * before the link status is correct
+	 */
+	if (mac->type == ixgbe_mac_82599_vf) {
+		int i;
+
+		for (i = 0; i < 5; i++) {
+			DELAY(100);
+			links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
+
+			if (!(links_reg & IXGBE_LINKS_UP))
+				goto out;
+		}
+	}
+
+	switch (links_reg & IXGBE_LINKS_SPEED_82599) {
+	case IXGBE_LINKS_SPEED_10G_82599:
+		*speed = IXGBE_LINK_SPEED_10GB_FULL;
+		if (hw->mac.type >= ixgbe_mac_X550) {
+			if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
+				*speed = IXGBE_LINK_SPEED_2_5GB_FULL;
+		}
+		break;
+	case IXGBE_LINKS_SPEED_1G_82599:
+		*speed = IXGBE_LINK_SPEED_1GB_FULL;
+		break;
+	case IXGBE_LINKS_SPEED_100_82599:
+		*speed = IXGBE_LINK_SPEED_100_FULL;
+		if (hw->mac.type == ixgbe_mac_X550) {
+			if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
+				*speed = IXGBE_LINK_SPEED_5GB_FULL;
+		}
+		break;
+	case IXGBE_LINKS_SPEED_10_X550EM_A:
+		*speed = IXGBE_LINK_SPEED_UNKNOWN;
+		/* Reserved for pre-x550 devices */
+		if (hw->mac.type >= ixgbe_mac_X550)
+			*speed = IXGBE_LINK_SPEED_10_FULL;
+		break;
+	default:
+		*speed = IXGBE_LINK_SPEED_UNKNOWN;
+	}
+
+	/* if we passed all the tests above then the link is up and we no
+	 * longer need to check for link
+	 */
+	mac->get_link_status = false;
+
+out:
+	*link_up = !mac->get_link_status;
+	return IXGBE_SUCCESS;
+}
+
+/**
+ * ixgbevf_hv_set_rlpml_vf - Set the maximum receive packet length
+ * @hw: pointer to the HW structure
+ * @max_size: value to assign to max frame size
+ * Hyper-V variant.
+ **/
+static s32 ixgbevf_hv_set_rlpml_vf(struct ixgbe_hw *hw, u16 max_size)
+{
+	u32 reg;
+
+	/* If we are on Hyper-V, we implement this functionality
+	 * differently.
+	 */
+	reg =  IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(0));
+	/* CRC == 4 */
+	reg |= ((max_size + 4) | IXGBE_RXDCTL_RLPML_EN);
+	IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(0), reg);
+
+	return IXGBE_SUCCESS;
+}
+
+/**
+ *  ixgbevf_hv_negotiate_api_version_vf - Negotiate supported API version
+ *  @hw: pointer to the HW structure
+ *  @api: integer containing requested API version
+ *  Hyper-V version - only ixgbe_mbox_api_10 supported.
+ **/
+static int ixgbevf_hv_negotiate_api_version_vf(struct ixgbe_hw *hw, int api)
+{
+	UNREFERENCED_1PARAMETER(hw);
+
+	/* Hyper-V only supports api version ixgbe_mbox_api_10 */
+	if (api != ixgbe_mbox_api_10)
+		return IXGBE_ERR_INVALID_ARGUMENT;
+
+	return IXGBE_SUCCESS;
+}
+
+/**
+ *  ixgbevf_hv_init_ops_vf - Initialize the pointers for vf
+ *  @hw: pointer to hardware structure
+ *
+ *  This will assign function pointers, adapter-specific functions can
+ *  override the assignment of generic function pointers by assigning
+ *  their own adapter-specific function pointers.
+ *  Does not touch the hardware.
+ **/
+s32 ixgbevf_hv_init_ops_vf(struct ixgbe_hw *hw)
+{
+	/* Set defaults for VF then override applicable Hyper-V
+	 * specific functions
+	 */
+	ixgbe_init_ops_vf(hw);
+
+	hw->mac.ops.reset_hw = ixgbevf_hv_reset_hw_vf;
+	hw->mac.ops.check_link = ixgbevf_hv_check_mac_link_vf;
+	hw->mac.ops.negotiate_api_version = ixgbevf_hv_negotiate_api_version_vf;
+	hw->mac.ops.set_rar = ixgbevf_hv_set_rar_vf;
+	hw->mac.ops.update_mc_addr_list = ixgbevf_hv_update_mc_addr_list_vf;
+	hw->mac.ops.update_xcast_mode = ixgbevf_hv_update_xcast_mode;
+	hw->mac.ops.set_uc_addr = ixgbevf_hv_set_uc_addr_vf;
+	hw->mac.ops.set_vfta = ixgbevf_hv_set_vfta_vf;
+	hw->mac.ops.set_rlpml = ixgbevf_hv_set_rlpml_vf;
+
+	return IXGBE_SUCCESS;
+}