+++ /dev/null
-/******************************************************************************
-
- Copyright (c) 2001-2011, 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.
-
-******************************************************************************/
-/*$FreeBSD$*/
-
-
-#include "e1000_api.h"
-
-
-static s32 e1000_init_phy_params_vf(struct e1000_hw *hw);
-static s32 e1000_init_nvm_params_vf(struct e1000_hw *hw);
-static void e1000_release_vf(struct e1000_hw *hw);
-static s32 e1000_acquire_vf(struct e1000_hw *hw);
-static s32 e1000_setup_link_vf(struct e1000_hw *hw);
-static s32 e1000_get_bus_info_pcie_vf(struct e1000_hw *hw);
-static s32 e1000_init_mac_params_vf(struct e1000_hw *hw);
-static s32 e1000_check_for_link_vf(struct e1000_hw *hw);
-static s32 e1000_get_link_up_info_vf(struct e1000_hw *hw, u16 *speed,
- u16 *duplex);
-static s32 e1000_init_hw_vf(struct e1000_hw *hw);
-static s32 e1000_reset_hw_vf(struct e1000_hw *hw);
-static void e1000_update_mc_addr_list_vf(struct e1000_hw *hw, u8 *, u32);
-static void e1000_rar_set_vf(struct e1000_hw *, u8 *, u32);
-static s32 e1000_read_mac_addr_vf(struct e1000_hw *);
-
-/**
- * e1000_init_phy_params_vf - Inits PHY params
- * @hw: pointer to the HW structure
- *
- * Doesn't do much - there's no PHY available to the VF.
- **/
-static s32 e1000_init_phy_params_vf(struct e1000_hw *hw)
-{
- DEBUGFUNC("e1000_init_phy_params_vf");
- hw->phy.type = e1000_phy_vf;
- hw->phy.ops.acquire = e1000_acquire_vf;
- hw->phy.ops.release = e1000_release_vf;
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_init_nvm_params_vf - Inits NVM params
- * @hw: pointer to the HW structure
- *
- * Doesn't do much - there's no NVM available to the VF.
- **/
-static s32 e1000_init_nvm_params_vf(struct e1000_hw *hw)
-{
- DEBUGFUNC("e1000_init_nvm_params_vf");
- hw->nvm.type = e1000_nvm_none;
- hw->nvm.ops.acquire = e1000_acquire_vf;
- hw->nvm.ops.release = e1000_release_vf;
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_init_mac_params_vf - Inits MAC params
- * @hw: pointer to the HW structure
- **/
-static s32 e1000_init_mac_params_vf(struct e1000_hw *hw)
-{
- struct e1000_mac_info *mac = &hw->mac;
-
- DEBUGFUNC("e1000_init_mac_params_vf");
-
- /* Set media type */
- /*
- * Virtual functions don't care what they're media type is as they
- * have no direct access to the PHY, or the media. That is handled
- * by the physical function driver.
- */
- hw->phy.media_type = e1000_media_type_unknown;
-
- /* No ASF features for the VF driver */
- mac->asf_firmware_present = FALSE;
- /* ARC subsystem not supported */
- mac->arc_subsystem_valid = FALSE;
- /* Disable adaptive IFS mode so the generic funcs don't do anything */
- mac->adaptive_ifs = FALSE;
- /* VF's have no MTA Registers - PF feature only */
- mac->mta_reg_count = 128;
- /* VF's have no access to RAR entries */
- mac->rar_entry_count = 1;
-
- /* Function pointers */
- /* link setup */
- mac->ops.setup_link = e1000_setup_link_vf;
- /* bus type/speed/width */
- mac->ops.get_bus_info = e1000_get_bus_info_pcie_vf;
- /* reset */
- mac->ops.reset_hw = e1000_reset_hw_vf;
- /* hw initialization */
- mac->ops.init_hw = e1000_init_hw_vf;
- /* check for link */
- mac->ops.check_for_link = e1000_check_for_link_vf;
- /* link info */
- mac->ops.get_link_up_info = e1000_get_link_up_info_vf;
- /* multicast address update */
- mac->ops.update_mc_addr_list = e1000_update_mc_addr_list_vf;
- /* set mac address */
- mac->ops.rar_set = e1000_rar_set_vf;
- /* read mac address */
- mac->ops.read_mac_addr = e1000_read_mac_addr_vf;
-
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_init_function_pointers_vf - Inits function pointers
- * @hw: pointer to the HW structure
- **/
-void e1000_init_function_pointers_vf(struct e1000_hw *hw)
-{
- DEBUGFUNC("e1000_init_function_pointers_vf");
-
- hw->mac.ops.init_params = e1000_init_mac_params_vf;
- hw->nvm.ops.init_params = e1000_init_nvm_params_vf;
- hw->phy.ops.init_params = e1000_init_phy_params_vf;
- hw->mbx.ops.init_params = e1000_init_mbx_params_vf;
-}
-
-/**
- * e1000_acquire_vf - Acquire rights to access PHY or NVM.
- * @hw: pointer to the HW structure
- *
- * There is no PHY or NVM so we want all attempts to acquire these to fail.
- * In addition, the MAC registers to access PHY/NVM don't exist so we don't
- * even want any SW to attempt to use them.
- **/
-static s32 e1000_acquire_vf(struct e1000_hw *hw)
-{
- return -E1000_ERR_PHY;
-}
-
-/**
- * e1000_release_vf - Release PHY or NVM
- * @hw: pointer to the HW structure
- *
- * There is no PHY or NVM so we want all attempts to acquire these to fail.
- * In addition, the MAC registers to access PHY/NVM don't exist so we don't
- * even want any SW to attempt to use them.
- **/
-static void e1000_release_vf(struct e1000_hw *hw)
-{
- return;
-}
-
-/**
- * e1000_setup_link_vf - Sets up link.
- * @hw: pointer to the HW structure
- *
- * Virtual functions cannot change link.
- **/
-static s32 e1000_setup_link_vf(struct e1000_hw *hw)
-{
- DEBUGFUNC("e1000_setup_link_vf");
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_get_bus_info_pcie_vf - Gets the bus info.
- * @hw: pointer to the HW structure
- *
- * Virtual functions are not really on their own bus.
- **/
-static s32 e1000_get_bus_info_pcie_vf(struct e1000_hw *hw)
-{
- struct e1000_bus_info *bus = &hw->bus;
-
- DEBUGFUNC("e1000_get_bus_info_pcie_vf");
-
- /* Do not set type PCI-E because we don't want disable master to run */
- bus->type = e1000_bus_type_reserved;
- bus->speed = e1000_bus_speed_2500;
-
- return 0;
-}
-
-/**
- * e1000_get_link_up_info_vf - Gets link info.
- * @hw: pointer to the HW structure
- * @speed: pointer to 16 bit value to store link speed.
- * @duplex: pointer to 16 bit value to store duplex.
- *
- * Since we cannot read the PHY and get accurate link info, we must rely upon
- * the status register's data which is often stale and inaccurate.
- **/
-static s32 e1000_get_link_up_info_vf(struct e1000_hw *hw, u16 *speed,
- u16 *duplex)
-{
- s32 status;
-
- DEBUGFUNC("e1000_get_link_up_info_vf");
-
- status = E1000_READ_REG(hw, E1000_STATUS);
- if (status & E1000_STATUS_SPEED_1000) {
- *speed = SPEED_1000;
- DEBUGOUT("1000 Mbs, ");
- } else if (status & E1000_STATUS_SPEED_100) {
- *speed = SPEED_100;
- DEBUGOUT("100 Mbs, ");
- } else {
- *speed = SPEED_10;
- DEBUGOUT("10 Mbs, ");
- }
-
- if (status & E1000_STATUS_FD) {
- *duplex = FULL_DUPLEX;
- DEBUGOUT("Full Duplex\n");
- } else {
- *duplex = HALF_DUPLEX;
- DEBUGOUT("Half Duplex\n");
- }
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_reset_hw_vf - Resets the HW
- * @hw: pointer to the HW structure
- *
- * VF's provide a function level reset. This is done using bit 26 of ctrl_reg.
- * This is all the reset we can perform on a VF.
- **/
-static s32 e1000_reset_hw_vf(struct e1000_hw *hw)
-{
- struct e1000_mbx_info *mbx = &hw->mbx;
- u32 timeout = E1000_VF_INIT_TIMEOUT;
- s32 ret_val = -E1000_ERR_MAC_INIT;
- u32 ctrl, msgbuf[3];
- u8 *addr = (u8 *)(&msgbuf[1]);
-
- DEBUGFUNC("e1000_reset_hw_vf");
-
- DEBUGOUT("Issuing a function level reset to MAC\n");
- ctrl = E1000_READ_REG(hw, E1000_CTRL);
- E1000_WRITE_REG(hw, E1000_CTRL, ctrl | E1000_CTRL_RST);
-
- /* we cannot reset while the RSTI / RSTD bits are asserted */
- while (!mbx->ops.check_for_rst(hw, 0) && timeout) {
- timeout--;
- usec_delay(5);
- }
-
- if (timeout) {
- /* mailbox timeout can now become active */
- mbx->timeout = E1000_VF_MBX_INIT_TIMEOUT;
-
- msgbuf[0] = E1000_VF_RESET;
- mbx->ops.write_posted(hw, msgbuf, 1, 0);
-
- msec_delay(10);
-
- /* set our "perm_addr" based on info provided by PF */
- ret_val = mbx->ops.read_posted(hw, msgbuf, 3, 0);
- if (!ret_val) {
- if (msgbuf[0] == (E1000_VF_RESET |
- E1000_VT_MSGTYPE_ACK))
- memcpy(hw->mac.perm_addr, addr, 6);
- else
- ret_val = -E1000_ERR_MAC_INIT;
- }
- }
-
- return ret_val;
-}
-
-/**
- * e1000_init_hw_vf - Inits the HW
- * @hw: pointer to the HW structure
- *
- * Not much to do here except clear the PF Reset indication if there is one.
- **/
-static s32 e1000_init_hw_vf(struct e1000_hw *hw)
-{
- DEBUGFUNC("e1000_init_hw_vf");
-
- /* attempt to set and restore our mac address */
- e1000_rar_set_vf(hw, hw->mac.addr, 0);
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_rar_set_vf - set device MAC address
- * @hw: pointer to the HW structure
- * @addr: pointer to the receive address
- * @index receive address array register
- **/
-static void e1000_rar_set_vf(struct e1000_hw *hw, u8 * addr, u32 index)
-{
- struct e1000_mbx_info *mbx = &hw->mbx;
- u32 msgbuf[3];
- u8 *msg_addr = (u8 *)(&msgbuf[1]);
- s32 ret_val;
-
- memset(msgbuf, 0, 12);
- msgbuf[0] = E1000_VF_SET_MAC_ADDR;
- memcpy(msg_addr, addr, 6);
- ret_val = mbx->ops.write_posted(hw, msgbuf, 3, 0);
-
- if (!ret_val)
- ret_val = mbx->ops.read_posted(hw, msgbuf, 3, 0);
-
- msgbuf[0] &= ~E1000_VT_MSGTYPE_CTS;
-
- /* if nacked the address was rejected, use "perm_addr" */
- if (!ret_val &&
- (msgbuf[0] == (E1000_VF_SET_MAC_ADDR | E1000_VT_MSGTYPE_NACK)))
- e1000_read_mac_addr_vf(hw);
-}
-
-/**
- * e1000_hash_mc_addr_vf - Generate a multicast hash value
- * @hw: pointer to the HW structure
- * @mc_addr: pointer to a multicast address
- *
- * Generates a multicast address hash value which is used to determine
- * the multicast filter table array address and new table value.
- **/
-static u32 e1000_hash_mc_addr_vf(struct e1000_hw *hw, u8 *mc_addr)
-{
- u32 hash_value, hash_mask;
- u8 bit_shift = 0;
-
- DEBUGFUNC("e1000_hash_mc_addr_generic");
-
- /* Register count multiplied by bits per register */
- hash_mask = (hw->mac.mta_reg_count * 32) - 1;
-
- /*
- * The bit_shift is the number of left-shifts
- * where 0xFF would still fall within the hash mask.
- */
- while (hash_mask >> bit_shift != 0xFF)
- bit_shift++;
-
- hash_value = hash_mask & (((mc_addr[4] >> (8 - bit_shift)) |
- (((u16) mc_addr[5]) << bit_shift)));
-
- return hash_value;
-}
-
-/**
- * e1000_update_mc_addr_list_vf - Update Multicast addresses
- * @hw: pointer to the HW structure
- * @mc_addr_list: array of multicast addresses to program
- * @mc_addr_count: number of multicast addresses to program
- *
- * Updates the Multicast Table Array.
- * The caller must have a packed mc_addr_list of multicast addresses.
- **/
-void e1000_update_mc_addr_list_vf(struct e1000_hw *hw,
- u8 *mc_addr_list, u32 mc_addr_count)
-{
- struct e1000_mbx_info *mbx = &hw->mbx;
- u32 msgbuf[E1000_VFMAILBOX_SIZE];
- u16 *hash_list = (u16 *)&msgbuf[1];
- u32 hash_value;
- u32 i;
-
- DEBUGFUNC("e1000_update_mc_addr_list_vf");
-
- /* Each entry in the list uses 1 16 bit word. We have 30
- * 16 bit words available in our HW msg buffer (minus 1 for the
- * msg type). That's 30 hash values if we pack 'em right. If
- * there are more than 30 MC addresses to add then punt the
- * extras for now and then add code to handle more than 30 later.
- * It would be unusual for a server to request that many multi-cast
- * addresses except for in large enterprise network environments.
- */
-
- DEBUGOUT1("MC Addr Count = %d\n", mc_addr_count);
-
- if (mc_addr_count > 30) {
- msgbuf[0] |= E1000_VF_SET_MULTICAST_OVERFLOW;
- mc_addr_count = 30;
- }
-
- msgbuf[0] = E1000_VF_SET_MULTICAST;
- msgbuf[0] |= mc_addr_count << E1000_VT_MSGINFO_SHIFT;
-
- for (i = 0; i < mc_addr_count; i++) {
- hash_value = e1000_hash_mc_addr_vf(hw, mc_addr_list);
- DEBUGOUT1("Hash value = 0x%03X\n", hash_value);
- hash_list[i] = hash_value & 0x0FFF;
- mc_addr_list += ETH_ADDR_LEN;
- }
-
- mbx->ops.write_posted(hw, msgbuf, E1000_VFMAILBOX_SIZE, 0);
-}
-
-/**
- * e1000_vfta_set_vf - Set/Unset vlan filter table address
- * @hw: pointer to the HW structure
- * @vid: determines the vfta register and bit to set/unset
- * @set: if TRUE then set bit, else clear bit
- **/
-void e1000_vfta_set_vf(struct e1000_hw *hw, u16 vid, bool set)
-{
- struct e1000_mbx_info *mbx = &hw->mbx;
- u32 msgbuf[2];
-
- msgbuf[0] = E1000_VF_SET_VLAN;
- msgbuf[1] = vid;
- /* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
- if (set)
- msgbuf[0] |= E1000_VF_SET_VLAN_ADD;
-
- mbx->ops.write_posted(hw, msgbuf, 2, 0);
-}
-
-/** e1000_rlpml_set_vf - Set the maximum receive packet length
- * @hw: pointer to the HW structure
- * @max_size: value to assign to max frame size
- **/
-void e1000_rlpml_set_vf(struct e1000_hw *hw, u16 max_size)
-{
- struct e1000_mbx_info *mbx = &hw->mbx;
- u32 msgbuf[2];
-
- msgbuf[0] = E1000_VF_SET_LPE;
- msgbuf[1] = max_size;
-
- mbx->ops.write_posted(hw, msgbuf, 2, 0);
-}
-
-/**
- * e1000_promisc_set_vf - Set flags for Unicast or Multicast promisc
- * @hw: pointer to the HW structure
- * @uni: boolean indicating unicast promisc status
- * @multi: boolean indicating multicast promisc status
- **/
-s32 e1000_promisc_set_vf(struct e1000_hw *hw, enum e1000_promisc_type type)
-{
- struct e1000_mbx_info *mbx = &hw->mbx;
- u32 msgbuf = E1000_VF_SET_PROMISC;
- s32 ret_val;
-
- switch (type) {
- case e1000_promisc_multicast:
- msgbuf |= E1000_VF_SET_PROMISC_MULTICAST;
- break;
- case e1000_promisc_enabled:
- msgbuf |= E1000_VF_SET_PROMISC_MULTICAST;
- case e1000_promisc_unicast:
- msgbuf |= E1000_VF_SET_PROMISC_UNICAST;
- case e1000_promisc_disabled:
- break;
- default:
- return -E1000_ERR_MAC_INIT;
- }
-
- ret_val = mbx->ops.write_posted(hw, &msgbuf, 1, 0);
-
- if (!ret_val)
- ret_val = mbx->ops.read_posted(hw, &msgbuf, 1, 0);
-
- if (!ret_val && !(msgbuf & E1000_VT_MSGTYPE_ACK))
- ret_val = -E1000_ERR_MAC_INIT;
-
- return ret_val;
-}
-
-/**
- * e1000_read_mac_addr_vf - Read device MAC address
- * @hw: pointer to the HW structure
- **/
-static s32 e1000_read_mac_addr_vf(struct e1000_hw *hw)
-{
- int i;
-
- for (i = 0; i < ETH_ADDR_LEN; i++)
- hw->mac.addr[i] = hw->mac.perm_addr[i];
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_check_for_link_vf - Check for link for a virtual interface
- * @hw: pointer to the HW structure
- *
- * Checks to see if the underlying PF is still talking to the VF and
- * if it is then it reports the link state to the hardware, otherwise
- * it reports link down and returns an error.
- **/
-static s32 e1000_check_for_link_vf(struct e1000_hw *hw)
-{
- struct e1000_mbx_info *mbx = &hw->mbx;
- struct e1000_mac_info *mac = &hw->mac;
- s32 ret_val = E1000_SUCCESS;
- u32 in_msg = 0;
-
- DEBUGFUNC("e1000_check_for_link_vf");
-
- /*
- * We only want to run this if there has been a rst asserted.
- * in this case that could mean a link change, device reset,
- * or a virtual function reset
- */
-
- /* If we were hit with a reset or timeout 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 */
- if (!(E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU))
- goto out;
-
- /* if the read failed it could just be a mailbox collision, best wait
- * until we are called again and don't report an error */
- if (mbx->ops.read(hw, &in_msg, 1, 0))
- goto out;
-
- /* if incoming message isn't clear to send we are waiting on response */
- if (!(in_msg & E1000_VT_MSGTYPE_CTS)) {
- /* message is not CTS and is NACK we have lost CTS status */
- if (in_msg & E1000_VT_MSGTYPE_NACK)
- ret_val = -E1000_ERR_MAC_INIT;
- goto out;
- }
-
- /* at this point we know the PF is talking to us, check and see if
- * we are still accepting timeout or if we had a timeout failure.
- * if we failed then we will need to reinit */
- if (!mbx->timeout) {
- ret_val = -E1000_ERR_MAC_INIT;
- goto out;
- }
-
- /* 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:
- return ret_val;
-}
-
git.droids-corp.org / dpdk.git / blobdiff