1 files changed, 254 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_common.c b/drivers/net/ethernet/intel/i40evf/i40e_common.c
new file mode 100644
index 00000000000..7b13953b28c
--- /dev/null
+++ b/drivers/net/ethernet/intel/i40evf/i40e_common.c
@@ -0,0 +1,254 @@
+/*******************************************************************************
+ *
+ * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ ******************************************************************************/
+
+#include "i40e_type.h"
+#include "i40e_adminq.h"
+#include "i40e_prototype.h"
+#include "i40e_virtchnl.h"
+
+/**
+ * i40e_set_mac_type - Sets MAC type
+ * @hw: pointer to the HW structure
+ *
+ * This function sets the mac type of the adapter based on the
+ * vendor ID and device ID stored in the hw structure.
+ **/
+i40e_status i40e_set_mac_type(struct i40e_hw *hw)
+{
+	i40e_status status = 0;
+
+	if (hw->vendor_id == PCI_VENDOR_ID_INTEL) {
+		switch (hw->device_id) {
+		case I40E_DEV_ID_SFP_XL710:
+		case I40E_DEV_ID_SFP_X710:
+		case I40E_DEV_ID_QEMU:
+		case I40E_DEV_ID_KX_A:
+		case I40E_DEV_ID_KX_B:
+		case I40E_DEV_ID_KX_C:
+		case I40E_DEV_ID_KX_D:
+		case I40E_DEV_ID_QSFP_A:
+		case I40E_DEV_ID_QSFP_B:
+		case I40E_DEV_ID_QSFP_C:
+			hw->mac.type = I40E_MAC_XL710;
+			break;
+		case I40E_DEV_ID_VF:
+		case I40E_DEV_ID_VF_HV:
+			hw->mac.type = I40E_MAC_VF;
+			break;
+		default:
+			hw->mac.type = I40E_MAC_GENERIC;
+			break;
+		}
+	} else {
+		status = I40E_ERR_DEVICE_NOT_SUPPORTED;
+	}
+
+	hw_dbg(hw, "i40e_set_mac_type found mac: %d, returns: %d\n",
+		  hw->mac.type, status);
+	return status;
+}
+
+/**
+ * i40evf_debug_aq
+ * @hw: debug mask related to admin queue
+ * @mask: debug mask
+ * @desc: pointer to admin queue descriptor
+ * @buffer: pointer to command buffer
+ *
+ * Dumps debug log about adminq command with descriptor contents.
+ **/
+void i40evf_debug_aq(struct i40e_hw *hw, enum i40e_debug_mask mask, void *desc,
+		   void *buffer)
+{
+	struct i40e_aq_desc *aq_desc = (struct i40e_aq_desc *)desc;
+	u8 *aq_buffer = (u8 *)buffer;
+	u32 data[4];
+	u32 i = 0;
+
+	if ((!(mask & hw->debug_mask)) || (desc == NULL))
+		return;
+
+	i40e_debug(hw, mask,
+		   "AQ CMD: opcode 0x%04X, flags 0x%04X, datalen 0x%04X, retval 0x%04X\n",
+		   aq_desc->opcode, aq_desc->flags, aq_desc->datalen,
+		   aq_desc->retval);
+	i40e_debug(hw, mask, "\tcookie (h,l) 0x%08X 0x%08X\n",
+		   aq_desc->cookie_high, aq_desc->cookie_low);
+	i40e_debug(hw, mask, "\tparam (0,1)  0x%08X 0x%08X\n",
+		   aq_desc->params.internal.param0,
+		   aq_desc->params.internal.param1);
+	i40e_debug(hw, mask, "\taddr (h,l)   0x%08X 0x%08X\n",
+		   aq_desc->params.external.addr_high,
+		   aq_desc->params.external.addr_low);
+
+	if ((buffer != NULL) && (aq_desc->datalen != 0)) {
+		memset(data, 0, sizeof(data));
+		i40e_debug(hw, mask, "AQ CMD Buffer:\n");
+		for (i = 0; i < le16_to_cpu(aq_desc->datalen); i++) {
+			data[((i % 16) / 4)] |=
+				((u32)aq_buffer[i]) << (8 * (i % 4));
+			if ((i % 16) == 15) {
+				i40e_debug(hw, mask,
+					   "\t0x%04X  %08X %08X %08X %08X\n",
+					   i - 15, data[0], data[1], data[2],
+					   data[3]);
+				memset(data, 0, sizeof(data));
+			}
+		}
+		if ((i % 16) != 0)
+			i40e_debug(hw, mask, "\t0x%04X  %08X %08X %08X %08X\n",
+				   i - (i % 16), data[0], data[1], data[2],
+				   data[3]);
+	}
+}
+
+/**
+ * i40evf_check_asq_alive
+ * @hw: pointer to the hw struct
+ *
+ * Returns true if Queue is enabled else false.
+ **/
+bool i40evf_check_asq_alive(struct i40e_hw *hw)
+{
+	return !!(rd32(hw, hw->aq.asq.len) & I40E_PF_ATQLEN_ATQENABLE_MASK);
+}
+
+/**
+ * i40evf_aq_queue_shutdown
+ * @hw: pointer to the hw struct
+ * @unloading: is the driver unloading itself
+ *
+ * Tell the Firmware that we're shutting down the AdminQ and whether
+ * or not the driver is unloading as well.
+ **/
+i40e_status i40evf_aq_queue_shutdown(struct i40e_hw *hw,
+					     bool unloading)
+{
+	struct i40e_aq_desc desc;
+	struct i40e_aqc_queue_shutdown *cmd =
+		(struct i40e_aqc_queue_shutdown *)&desc.params.raw;
+	i40e_status status;
+
+	i40evf_fill_default_direct_cmd_desc(&desc,
+					  i40e_aqc_opc_queue_shutdown);
+
+	if (unloading)
+		cmd->driver_unloading = cpu_to_le32(I40E_AQ_DRIVER_UNLOADING);
+	status = i40evf_asq_send_command(hw, &desc, NULL, 0, NULL);
+
+	return status;
+}
+
+
+/**
+ * i40e_aq_send_msg_to_pf
+ * @hw: pointer to the hardware structure
+ * @v_opcode: opcodes for VF-PF communication
+ * @v_retval: return error code
+ * @msg: pointer to the msg buffer
+ * @msglen: msg length
+ * @cmd_details: pointer to command details
+ *
+ * Send message to PF driver using admin queue. By default, this message
+ * is sent asynchronously, i.e. i40evf_asq_send_command() does not wait for
+ * completion before returning.
+ **/
+i40e_status i40e_aq_send_msg_to_pf(struct i40e_hw *hw,
+				enum i40e_virtchnl_ops v_opcode,
+				i40e_status v_retval,
+				u8 *msg, u16 msglen,
+				struct i40e_asq_cmd_details *cmd_details)
+{
+	struct i40e_aq_desc desc;
+	i40e_status status;
+
+	i40evf_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_send_msg_to_pf);
+	desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_SI);
+	desc.cookie_high = cpu_to_le32(v_opcode);
+	desc.cookie_low = cpu_to_le32(v_retval);
+	if (msglen) {
+		desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF
+						| I40E_AQ_FLAG_RD));
+		if (msglen > I40E_AQ_LARGE_BUF)
+			desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB);
+		desc.datalen = cpu_to_le16(msglen);
+	}
+	if (!cmd_details) {
+		struct i40e_asq_cmd_details details;
+		memset(&details, 0, sizeof(details));
+		details.async = true;
+		cmd_details = &details;
+	}
+	status = i40evf_asq_send_command(hw, (struct i40e_aq_desc *)&desc, msg,
+				       msglen, cmd_details);
+	return status;
+}
+
+/**
+ * i40e_vf_parse_hw_config
+ * @hw: pointer to the hardware structure
+ * @msg: pointer to the virtual channel VF resource structure
+ *
+ * Given a VF resource message from the PF, populate the hw struct
+ * with appropriate information.
+ **/
+void i40e_vf_parse_hw_config(struct i40e_hw *hw,
+			     struct i40e_virtchnl_vf_resource *msg)
+{
+	struct i40e_virtchnl_vsi_resource *vsi_res;
+	int i;
+
+	vsi_res = &msg->vsi_res[0];
+
+	hw->dev_caps.num_vsis = msg->num_vsis;
+	hw->dev_caps.num_rx_qp = msg->num_queue_pairs;
+	hw->dev_caps.num_tx_qp = msg->num_queue_pairs;
+	hw->dev_caps.num_msix_vectors_vf = msg->max_vectors;
+	hw->dev_caps.dcb = msg->vf_offload_flags &
+			   I40E_VIRTCHNL_VF_OFFLOAD_L2;
+	hw->dev_caps.fcoe = (msg->vf_offload_flags &
+			     I40E_VIRTCHNL_VF_OFFLOAD_FCOE) ? 1 : 0;
+	for (i = 0; i < msg->num_vsis; i++) {
+		if (vsi_res->vsi_type == I40E_VSI_SRIOV) {
+			memcpy(hw->mac.perm_addr, vsi_res->default_mac_addr,
+			       ETH_ALEN);
+			memcpy(hw->mac.addr, vsi_res->default_mac_addr,
+			       ETH_ALEN);
+		}
+		vsi_res++;
+	}
+}
+
+/**
+ * i40e_vf_reset
+ * @hw: pointer to the hardware structure
+ *
+ * Send a VF_RESET message to the PF. Does not wait for response from PF
+ * as none will be forthcoming. Immediately after calling this function,
+ * the admin queue should be shut down and (optionally) reinitialized.
+ **/
+i40e_status i40e_vf_reset(struct i40e_hw *hw)
+{
+	return i40e_aq_send_msg_to_pf(hw, I40E_VIRTCHNL_OP_RESET_VF,
+				      0, NULL, 0, NULL);
+}