545 lines
16 KiB
C
545 lines
16 KiB
C
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/* Intel(R) Ethernet Switch Host Interface Driver
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* Copyright(c) 2013 - 2016 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*
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* Contact Information:
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* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*/
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#include "fm10k_vf.h"
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/**
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* fm10k_stop_hw_vf - Stop Tx/Rx units
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* @hw: pointer to hardware structure
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*
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**/
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static s32 fm10k_stop_hw_vf(struct fm10k_hw *hw)
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{
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u8 *perm_addr = hw->mac.perm_addr;
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u32 bal = 0, bah = 0, tdlen;
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s32 err;
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u16 i;
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/* we need to disable the queues before taking further steps */
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err = fm10k_stop_hw_generic(hw);
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if (err && err != FM10K_ERR_REQUESTS_PENDING)
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return err;
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/* If permanent address is set then we need to restore it */
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if (is_valid_ether_addr(perm_addr)) {
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bal = (((u32)perm_addr[3]) << 24) |
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(((u32)perm_addr[4]) << 16) |
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(((u32)perm_addr[5]) << 8);
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bah = (((u32)0xFF) << 24) |
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(((u32)perm_addr[0]) << 16) |
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(((u32)perm_addr[1]) << 8) |
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((u32)perm_addr[2]);
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}
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/* restore default itr_scale for next VF initialization */
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tdlen = hw->mac.itr_scale << FM10K_TDLEN_ITR_SCALE_SHIFT;
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/* The queues have already been disabled so we just need to
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* update their base address registers
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*/
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for (i = 0; i < hw->mac.max_queues; i++) {
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fm10k_write_reg(hw, FM10K_TDBAL(i), bal);
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fm10k_write_reg(hw, FM10K_TDBAH(i), bah);
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fm10k_write_reg(hw, FM10K_RDBAL(i), bal);
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fm10k_write_reg(hw, FM10K_RDBAH(i), bah);
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/* Restore ITR scale in software-defined mechanism in TDLEN
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* for next VF initialization. See definition of
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* FM10K_TDLEN_ITR_SCALE_SHIFT for more details on the use of
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* TDLEN here.
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*/
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fm10k_write_reg(hw, FM10K_TDLEN(i), tdlen);
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}
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return err;
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}
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/**
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* fm10k_reset_hw_vf - VF hardware reset
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* @hw: pointer to hardware structure
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*
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* This function should return the hardware to a state similar to the
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* one it is in after just being initialized.
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**/
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static s32 fm10k_reset_hw_vf(struct fm10k_hw *hw)
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{
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s32 err;
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/* shut down queues we own and reset DMA configuration */
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err = fm10k_stop_hw_vf(hw);
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if (err == FM10K_ERR_REQUESTS_PENDING)
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hw->mac.reset_while_pending++;
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else if (err)
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return err;
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/* Inititate VF reset */
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fm10k_write_reg(hw, FM10K_VFCTRL, FM10K_VFCTRL_RST);
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/* Flush write and allow 100us for reset to complete */
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fm10k_write_flush(hw);
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udelay(FM10K_RESET_TIMEOUT);
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/* Clear reset bit and verify it was cleared */
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fm10k_write_reg(hw, FM10K_VFCTRL, 0);
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if (fm10k_read_reg(hw, FM10K_VFCTRL) & FM10K_VFCTRL_RST)
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return FM10K_ERR_RESET_FAILED;
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return 0;
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}
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/**
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* fm10k_init_hw_vf - VF hardware initialization
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* @hw: pointer to hardware structure
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*
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**/
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static s32 fm10k_init_hw_vf(struct fm10k_hw *hw)
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{
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u32 tqdloc, tqdloc0 = ~fm10k_read_reg(hw, FM10K_TQDLOC(0));
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s32 err;
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u16 i;
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/* verify we have at least 1 queue */
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if (!~fm10k_read_reg(hw, FM10K_TXQCTL(0)) ||
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!~fm10k_read_reg(hw, FM10K_RXQCTL(0))) {
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err = FM10K_ERR_NO_RESOURCES;
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goto reset_max_queues;
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}
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/* determine how many queues we have */
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for (i = 1; tqdloc0 && (i < FM10K_MAX_QUEUES_POOL); i++) {
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/* verify the Descriptor cache offsets are increasing */
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tqdloc = ~fm10k_read_reg(hw, FM10K_TQDLOC(i));
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if (!tqdloc || (tqdloc == tqdloc0))
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break;
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/* check to verify the PF doesn't own any of our queues */
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if (!~fm10k_read_reg(hw, FM10K_TXQCTL(i)) ||
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!~fm10k_read_reg(hw, FM10K_RXQCTL(i)))
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break;
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}
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/* shut down queues we own and reset DMA configuration */
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err = fm10k_disable_queues_generic(hw, i);
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if (err)
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goto reset_max_queues;
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/* record maximum queue count */
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hw->mac.max_queues = i;
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/* fetch default VLAN and ITR scale */
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hw->mac.default_vid = (fm10k_read_reg(hw, FM10K_TXQCTL(0)) &
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FM10K_TXQCTL_VID_MASK) >> FM10K_TXQCTL_VID_SHIFT;
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/* Read the ITR scale from TDLEN. See the definition of
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* FM10K_TDLEN_ITR_SCALE_SHIFT for more information about how TDLEN is
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* used here.
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*/
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hw->mac.itr_scale = (fm10k_read_reg(hw, FM10K_TDLEN(0)) &
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FM10K_TDLEN_ITR_SCALE_MASK) >>
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FM10K_TDLEN_ITR_SCALE_SHIFT;
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return 0;
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reset_max_queues:
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hw->mac.max_queues = 0;
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return err;
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}
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/* This structure defines the attibutes to be parsed below */
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const struct fm10k_tlv_attr fm10k_mac_vlan_msg_attr[] = {
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FM10K_TLV_ATTR_U32(FM10K_MAC_VLAN_MSG_VLAN),
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FM10K_TLV_ATTR_BOOL(FM10K_MAC_VLAN_MSG_SET),
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FM10K_TLV_ATTR_MAC_ADDR(FM10K_MAC_VLAN_MSG_MAC),
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FM10K_TLV_ATTR_MAC_ADDR(FM10K_MAC_VLAN_MSG_DEFAULT_MAC),
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FM10K_TLV_ATTR_MAC_ADDR(FM10K_MAC_VLAN_MSG_MULTICAST),
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FM10K_TLV_ATTR_LAST
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};
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/**
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* fm10k_update_vlan_vf - Update status of VLAN ID in VLAN filter table
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* @hw: pointer to hardware structure
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* @vid: VLAN ID to add to table
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* @vsi: Reserved, should always be 0
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* @set: Indicates if this is a set or clear operation
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*
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* This function adds or removes the corresponding VLAN ID from the VLAN
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* filter table for this VF.
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**/
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static s32 fm10k_update_vlan_vf(struct fm10k_hw *hw, u32 vid, u8 vsi, bool set)
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{
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struct fm10k_mbx_info *mbx = &hw->mbx;
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u32 msg[4];
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/* verify the index is not set */
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if (vsi)
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return FM10K_ERR_PARAM;
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/* clever trick to verify reserved bits in both vid and length */
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if ((vid << 16 | vid) >> 28)
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return FM10K_ERR_PARAM;
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/* encode set bit into the VLAN ID */
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if (!set)
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vid |= FM10K_VLAN_CLEAR;
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/* generate VLAN request */
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fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MAC_VLAN);
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fm10k_tlv_attr_put_u32(msg, FM10K_MAC_VLAN_MSG_VLAN, vid);
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/* load onto outgoing mailbox */
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return mbx->ops.enqueue_tx(hw, mbx, msg);
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}
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/**
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* fm10k_msg_mac_vlan_vf - Read device MAC address from mailbox message
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* @hw: pointer to the HW structure
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* @results: Attributes for message
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* @mbx: unused mailbox data
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*
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* This function should determine the MAC address for the VF
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**/
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s32 fm10k_msg_mac_vlan_vf(struct fm10k_hw *hw, u32 **results,
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struct fm10k_mbx_info *mbx)
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{
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u8 perm_addr[ETH_ALEN];
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u16 vid;
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s32 err;
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/* record MAC address requested */
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err = fm10k_tlv_attr_get_mac_vlan(
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results[FM10K_MAC_VLAN_MSG_DEFAULT_MAC],
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perm_addr, &vid);
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if (err)
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return err;
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ether_addr_copy(hw->mac.perm_addr, perm_addr);
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hw->mac.default_vid = vid & (FM10K_VLAN_TABLE_VID_MAX - 1);
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hw->mac.vlan_override = !!(vid & FM10K_VLAN_OVERRIDE);
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return 0;
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}
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/**
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* fm10k_read_mac_addr_vf - Read device MAC address
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* @hw: pointer to the HW structure
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*
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* This function should determine the MAC address for the VF
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**/
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static s32 fm10k_read_mac_addr_vf(struct fm10k_hw *hw)
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{
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u8 perm_addr[ETH_ALEN];
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u32 base_addr;
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base_addr = fm10k_read_reg(hw, FM10K_TDBAL(0));
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/* last byte should be 0 */
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if (base_addr << 24)
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return FM10K_ERR_INVALID_MAC_ADDR;
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perm_addr[3] = (u8)(base_addr >> 24);
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perm_addr[4] = (u8)(base_addr >> 16);
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perm_addr[5] = (u8)(base_addr >> 8);
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base_addr = fm10k_read_reg(hw, FM10K_TDBAH(0));
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/* first byte should be all 1's */
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if ((~base_addr) >> 24)
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return FM10K_ERR_INVALID_MAC_ADDR;
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perm_addr[0] = (u8)(base_addr >> 16);
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perm_addr[1] = (u8)(base_addr >> 8);
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perm_addr[2] = (u8)(base_addr);
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ether_addr_copy(hw->mac.perm_addr, perm_addr);
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ether_addr_copy(hw->mac.addr, perm_addr);
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return 0;
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}
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/**
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* fm10k_update_uc_addr_vf - Update device unicast addresses
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* @hw: pointer to the HW structure
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* @glort: unused
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* @mac: MAC address to add/remove from table
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* @vid: VLAN ID to add/remove from table
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* @add: Indicates if this is an add or remove operation
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* @flags: flags field to indicate add and secure - unused
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*
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* This function is used to add or remove unicast MAC addresses for
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* the VF.
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**/
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static s32 fm10k_update_uc_addr_vf(struct fm10k_hw *hw, u16 glort,
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const u8 *mac, u16 vid, bool add, u8 flags)
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{
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struct fm10k_mbx_info *mbx = &hw->mbx;
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u32 msg[7];
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/* verify VLAN ID is valid */
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if (vid >= FM10K_VLAN_TABLE_VID_MAX)
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return FM10K_ERR_PARAM;
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/* verify MAC address is valid */
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if (!is_valid_ether_addr(mac))
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return FM10K_ERR_PARAM;
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/* verify we are not locked down on the MAC address */
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if (is_valid_ether_addr(hw->mac.perm_addr) &&
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!ether_addr_equal(hw->mac.perm_addr, mac))
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return FM10K_ERR_PARAM;
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/* add bit to notify us if this is a set or clear operation */
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if (!add)
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vid |= FM10K_VLAN_CLEAR;
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/* generate VLAN request */
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fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MAC_VLAN);
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fm10k_tlv_attr_put_mac_vlan(msg, FM10K_MAC_VLAN_MSG_MAC, mac, vid);
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/* load onto outgoing mailbox */
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return mbx->ops.enqueue_tx(hw, mbx, msg);
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}
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/**
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* fm10k_update_mc_addr_vf - Update device multicast addresses
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* @hw: pointer to the HW structure
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* @glort: unused
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* @mac: MAC address to add/remove from table
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* @vid: VLAN ID to add/remove from table
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* @add: Indicates if this is an add or remove operation
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*
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* This function is used to add or remove multicast MAC addresses for
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* the VF.
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**/
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static s32 fm10k_update_mc_addr_vf(struct fm10k_hw *hw, u16 glort,
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const u8 *mac, u16 vid, bool add)
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{
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struct fm10k_mbx_info *mbx = &hw->mbx;
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u32 msg[7];
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/* verify VLAN ID is valid */
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if (vid >= FM10K_VLAN_TABLE_VID_MAX)
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return FM10K_ERR_PARAM;
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/* verify multicast address is valid */
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if (!is_multicast_ether_addr(mac))
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return FM10K_ERR_PARAM;
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/* add bit to notify us if this is a set or clear operation */
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if (!add)
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vid |= FM10K_VLAN_CLEAR;
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/* generate VLAN request */
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fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MAC_VLAN);
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fm10k_tlv_attr_put_mac_vlan(msg, FM10K_MAC_VLAN_MSG_MULTICAST,
|
||
|
|
mac, vid);
|
||
|
|
|
||
|
|
/* load onto outgoing mailbox */
|
||
|
|
return mbx->ops.enqueue_tx(hw, mbx, msg);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* fm10k_update_int_moderator_vf - Request update of interrupt moderator list
|
||
|
|
* @hw: pointer to hardware structure
|
||
|
|
*
|
||
|
|
* This function will issue a request to the PF to rescan our MSI-X table
|
||
|
|
* and to update the interrupt moderator linked list.
|
||
|
|
**/
|
||
|
|
static void fm10k_update_int_moderator_vf(struct fm10k_hw *hw)
|
||
|
|
{
|
||
|
|
struct fm10k_mbx_info *mbx = &hw->mbx;
|
||
|
|
u32 msg[1];
|
||
|
|
|
||
|
|
/* generate MSI-X request */
|
||
|
|
fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MSIX);
|
||
|
|
|
||
|
|
/* load onto outgoing mailbox */
|
||
|
|
mbx->ops.enqueue_tx(hw, mbx, msg);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* This structure defines the attibutes to be parsed below */
|
||
|
|
const struct fm10k_tlv_attr fm10k_lport_state_msg_attr[] = {
|
||
|
|
FM10K_TLV_ATTR_BOOL(FM10K_LPORT_STATE_MSG_DISABLE),
|
||
|
|
FM10K_TLV_ATTR_U8(FM10K_LPORT_STATE_MSG_XCAST_MODE),
|
||
|
|
FM10K_TLV_ATTR_BOOL(FM10K_LPORT_STATE_MSG_READY),
|
||
|
|
FM10K_TLV_ATTR_LAST
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* fm10k_msg_lport_state_vf - Message handler for lport_state message from PF
|
||
|
|
* @hw: Pointer to hardware structure
|
||
|
|
* @results: pointer array containing parsed data
|
||
|
|
* @mbx: Pointer to mailbox information structure
|
||
|
|
*
|
||
|
|
* This handler is meant to capture the indication from the PF that we
|
||
|
|
* are ready to bring up the interface.
|
||
|
|
**/
|
||
|
|
s32 fm10k_msg_lport_state_vf(struct fm10k_hw *hw, u32 **results,
|
||
|
|
struct fm10k_mbx_info *mbx)
|
||
|
|
{
|
||
|
|
hw->mac.dglort_map = !results[FM10K_LPORT_STATE_MSG_READY] ?
|
||
|
|
FM10K_DGLORTMAP_NONE : FM10K_DGLORTMAP_ZERO;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* fm10k_update_lport_state_vf - Update device state in lower device
|
||
|
|
* @hw: pointer to the HW structure
|
||
|
|
* @glort: unused
|
||
|
|
* @count: number of logical ports to enable - unused (always 1)
|
||
|
|
* @enable: boolean value indicating if this is an enable or disable request
|
||
|
|
*
|
||
|
|
* Notify the lower device of a state change. If the lower device is
|
||
|
|
* enabled we can add filters, if it is disabled all filters for this
|
||
|
|
* logical port are flushed.
|
||
|
|
**/
|
||
|
|
static s32 fm10k_update_lport_state_vf(struct fm10k_hw *hw, u16 glort,
|
||
|
|
u16 count, bool enable)
|
||
|
|
{
|
||
|
|
struct fm10k_mbx_info *mbx = &hw->mbx;
|
||
|
|
u32 msg[2];
|
||
|
|
|
||
|
|
/* reset glort mask 0 as we have to wait to be enabled */
|
||
|
|
hw->mac.dglort_map = FM10K_DGLORTMAP_NONE;
|
||
|
|
|
||
|
|
/* generate port state request */
|
||
|
|
fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_LPORT_STATE);
|
||
|
|
if (!enable)
|
||
|
|
fm10k_tlv_attr_put_bool(msg, FM10K_LPORT_STATE_MSG_DISABLE);
|
||
|
|
|
||
|
|
/* load onto outgoing mailbox */
|
||
|
|
return mbx->ops.enqueue_tx(hw, mbx, msg);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* fm10k_update_xcast_mode_vf - Request update of multicast mode
|
||
|
|
* @hw: pointer to hardware structure
|
||
|
|
* @glort: unused
|
||
|
|
* @mode: integer value indicating mode being requested
|
||
|
|
*
|
||
|
|
* This function will attempt to request a higher mode for the port
|
||
|
|
* so that it can enable either multicast, multicast promiscuous, or
|
||
|
|
* promiscuous mode of operation.
|
||
|
|
**/
|
||
|
|
static s32 fm10k_update_xcast_mode_vf(struct fm10k_hw *hw, u16 glort, u8 mode)
|
||
|
|
{
|
||
|
|
struct fm10k_mbx_info *mbx = &hw->mbx;
|
||
|
|
u32 msg[3];
|
||
|
|
|
||
|
|
if (mode > FM10K_XCAST_MODE_NONE)
|
||
|
|
return FM10K_ERR_PARAM;
|
||
|
|
|
||
|
|
/* generate message requesting to change xcast mode */
|
||
|
|
fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_LPORT_STATE);
|
||
|
|
fm10k_tlv_attr_put_u8(msg, FM10K_LPORT_STATE_MSG_XCAST_MODE, mode);
|
||
|
|
|
||
|
|
/* load onto outgoing mailbox */
|
||
|
|
return mbx->ops.enqueue_tx(hw, mbx, msg);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* fm10k_update_hw_stats_vf - Updates hardware related statistics of VF
|
||
|
|
* @hw: pointer to hardware structure
|
||
|
|
* @stats: pointer to statistics structure
|
||
|
|
*
|
||
|
|
* This function collects and aggregates per queue hardware statistics.
|
||
|
|
**/
|
||
|
|
static void fm10k_update_hw_stats_vf(struct fm10k_hw *hw,
|
||
|
|
struct fm10k_hw_stats *stats)
|
||
|
|
{
|
||
|
|
fm10k_update_hw_stats_q(hw, stats->q, 0, hw->mac.max_queues);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* fm10k_rebind_hw_stats_vf - Resets base for hardware statistics of VF
|
||
|
|
* @hw: pointer to hardware structure
|
||
|
|
* @stats: pointer to the stats structure to update
|
||
|
|
*
|
||
|
|
* This function resets the base for queue hardware statistics.
|
||
|
|
**/
|
||
|
|
static void fm10k_rebind_hw_stats_vf(struct fm10k_hw *hw,
|
||
|
|
struct fm10k_hw_stats *stats)
|
||
|
|
{
|
||
|
|
/* Unbind Queue Statistics */
|
||
|
|
fm10k_unbind_hw_stats_q(stats->q, 0, hw->mac.max_queues);
|
||
|
|
|
||
|
|
/* Reinitialize bases for all stats */
|
||
|
|
fm10k_update_hw_stats_vf(hw, stats);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* fm10k_configure_dglort_map_vf - Configures GLORT entry and queues
|
||
|
|
* @hw: pointer to hardware structure
|
||
|
|
* @dglort: pointer to dglort configuration structure
|
||
|
|
*
|
||
|
|
* Reads the configuration structure contained in dglort_cfg and uses
|
||
|
|
* that information to then populate a DGLORTMAP/DEC entry and the queues
|
||
|
|
* to which it has been assigned.
|
||
|
|
**/
|
||
|
|
static s32 fm10k_configure_dglort_map_vf(struct fm10k_hw *hw,
|
||
|
|
struct fm10k_dglort_cfg *dglort)
|
||
|
|
{
|
||
|
|
/* verify the dglort pointer */
|
||
|
|
if (!dglort)
|
||
|
|
return FM10K_ERR_PARAM;
|
||
|
|
|
||
|
|
/* stub for now until we determine correct message for this */
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct fm10k_msg_data fm10k_msg_data_vf[] = {
|
||
|
|
FM10K_TLV_MSG_TEST_HANDLER(fm10k_tlv_msg_test),
|
||
|
|
FM10K_VF_MSG_MAC_VLAN_HANDLER(fm10k_msg_mac_vlan_vf),
|
||
|
|
FM10K_VF_MSG_LPORT_STATE_HANDLER(fm10k_msg_lport_state_vf),
|
||
|
|
FM10K_TLV_MSG_ERROR_HANDLER(fm10k_tlv_msg_error),
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct fm10k_mac_ops mac_ops_vf = {
|
||
|
|
.get_bus_info = fm10k_get_bus_info_generic,
|
||
|
|
.reset_hw = fm10k_reset_hw_vf,
|
||
|
|
.init_hw = fm10k_init_hw_vf,
|
||
|
|
.start_hw = fm10k_start_hw_generic,
|
||
|
|
.stop_hw = fm10k_stop_hw_vf,
|
||
|
|
.update_vlan = fm10k_update_vlan_vf,
|
||
|
|
.read_mac_addr = fm10k_read_mac_addr_vf,
|
||
|
|
.update_uc_addr = fm10k_update_uc_addr_vf,
|
||
|
|
.update_mc_addr = fm10k_update_mc_addr_vf,
|
||
|
|
.update_xcast_mode = fm10k_update_xcast_mode_vf,
|
||
|
|
.update_int_moderator = fm10k_update_int_moderator_vf,
|
||
|
|
.update_lport_state = fm10k_update_lport_state_vf,
|
||
|
|
.update_hw_stats = fm10k_update_hw_stats_vf,
|
||
|
|
.rebind_hw_stats = fm10k_rebind_hw_stats_vf,
|
||
|
|
.configure_dglort_map = fm10k_configure_dglort_map_vf,
|
||
|
|
.get_host_state = fm10k_get_host_state_generic,
|
||
|
|
};
|
||
|
|
|
||
|
|
static s32 fm10k_get_invariants_vf(struct fm10k_hw *hw)
|
||
|
|
{
|
||
|
|
fm10k_get_invariants_generic(hw);
|
||
|
|
|
||
|
|
return fm10k_pfvf_mbx_init(hw, &hw->mbx, fm10k_msg_data_vf, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
const struct fm10k_info fm10k_vf_info = {
|
||
|
|
.mac = fm10k_mac_vf,
|
||
|
|
.get_invariants = fm10k_get_invariants_vf,
|
||
|
|
.mac_ops = &mac_ops_vf,
|
||
|
|
};
|