svn commit: r215933 - stable/7/sys/dev/e1000
Jack F Vogel
jfv at FreeBSD.org
Sat Nov 27 04:46:16 UTC 2010
Author: jfv
Date: Sat Nov 27 04:46:16 2010
New Revision: 215933
URL: http://svn.freebsd.org/changeset/base/215933
Log:
Add missing shared code files.
Added:
stable/7/sys/dev/e1000/e1000_mbx.c (contents, props changed)
stable/7/sys/dev/e1000/e1000_mbx.h (contents, props changed)
stable/7/sys/dev/e1000/e1000_vf.c (contents, props changed)
stable/7/sys/dev/e1000/e1000_vf.h (contents, props changed)
Added: stable/7/sys/dev/e1000/e1000_mbx.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ stable/7/sys/dev/e1000/e1000_mbx.c Sat Nov 27 04:46:16 2010 (r215933)
@@ -0,0 +1,762 @@
+/******************************************************************************
+
+ Copyright (c) 2001-2010, 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_mbx.h"
+
+/**
+ * e1000_null_mbx_check_for_flag - No-op function, return 0
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_null_mbx_check_for_flag(struct e1000_hw *hw, u16 mbx_id)
+{
+ DEBUGFUNC("e1000_null_mbx_check_flag");
+
+ return E1000_SUCCESS;
+}
+
+/**
+ * e1000_null_mbx_transact - No-op function, return 0
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_null_mbx_transact(struct e1000_hw *hw, u32 *msg, u16 size,
+ u16 mbx_id)
+{
+ DEBUGFUNC("e1000_null_mbx_rw_msg");
+
+ return E1000_SUCCESS;
+}
+
+/**
+ * e1000_read_mbx - Reads a message from the mailbox
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ * @mbx_id: id of mailbox to read
+ *
+ * returns SUCCESS if it successfuly read message from buffer
+ **/
+s32 e1000_read_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_read_mbx");
+
+ /* limit read to size of mailbox */
+ if (size > mbx->size)
+ size = mbx->size;
+
+ if (mbx->ops.read)
+ ret_val = mbx->ops.read(hw, msg, size, mbx_id);
+
+ return ret_val;
+}
+
+/**
+ * e1000_write_mbx - Write a message to the mailbox
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ * @mbx_id: id of mailbox to write
+ *
+ * returns SUCCESS if it successfully copied message into the buffer
+ **/
+s32 e1000_write_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ s32 ret_val = E1000_SUCCESS;
+
+ DEBUGFUNC("e1000_write_mbx");
+
+ if (size > mbx->size)
+ ret_val = -E1000_ERR_MBX;
+
+ else if (mbx->ops.write)
+ ret_val = mbx->ops.write(hw, msg, size, mbx_id);
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_msg - checks to see if someone sent us mail
+ * @hw: pointer to the HW structure
+ * @mbx_id: id of mailbox to check
+ *
+ * returns SUCCESS if the Status bit was found or else ERR_MBX
+ **/
+s32 e1000_check_for_msg(struct e1000_hw *hw, u16 mbx_id)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_check_for_msg");
+
+ if (mbx->ops.check_for_msg)
+ ret_val = mbx->ops.check_for_msg(hw, mbx_id);
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_ack - checks to see if someone sent us ACK
+ * @hw: pointer to the HW structure
+ * @mbx_id: id of mailbox to check
+ *
+ * returns SUCCESS if the Status bit was found or else ERR_MBX
+ **/
+s32 e1000_check_for_ack(struct e1000_hw *hw, u16 mbx_id)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_check_for_ack");
+
+ if (mbx->ops.check_for_ack)
+ ret_val = mbx->ops.check_for_ack(hw, mbx_id);
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_rst - checks to see if other side has reset
+ * @hw: pointer to the HW structure
+ * @mbx_id: id of mailbox to check
+ *
+ * returns SUCCESS if the Status bit was found or else ERR_MBX
+ **/
+s32 e1000_check_for_rst(struct e1000_hw *hw, u16 mbx_id)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_check_for_rst");
+
+ if (mbx->ops.check_for_rst)
+ ret_val = mbx->ops.check_for_rst(hw, mbx_id);
+
+ return ret_val;
+}
+
+/**
+ * e1000_poll_for_msg - Wait for message notification
+ * @hw: pointer to the HW structure
+ * @mbx_id: id of mailbox to write
+ *
+ * returns SUCCESS if it successfully received a message notification
+ **/
+static s32 e1000_poll_for_msg(struct e1000_hw *hw, u16 mbx_id)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ int countdown = mbx->timeout;
+
+ DEBUGFUNC("e1000_poll_for_msg");
+
+ if (!countdown || !mbx->ops.check_for_msg)
+ goto out;
+
+ while (countdown && mbx->ops.check_for_msg(hw, mbx_id)) {
+ countdown--;
+ if (!countdown)
+ break;
+ usec_delay(mbx->usec_delay);
+ }
+
+ /* if we failed, all future posted messages fail until reset */
+ if (!countdown)
+ mbx->timeout = 0;
+out:
+ return countdown ? E1000_SUCCESS : -E1000_ERR_MBX;
+}
+
+/**
+ * e1000_poll_for_ack - Wait for message acknowledgement
+ * @hw: pointer to the HW structure
+ * @mbx_id: id of mailbox to write
+ *
+ * returns SUCCESS if it successfully received a message acknowledgement
+ **/
+static s32 e1000_poll_for_ack(struct e1000_hw *hw, u16 mbx_id)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ int countdown = mbx->timeout;
+
+ DEBUGFUNC("e1000_poll_for_ack");
+
+ if (!countdown || !mbx->ops.check_for_ack)
+ goto out;
+
+ while (countdown && mbx->ops.check_for_ack(hw, mbx_id)) {
+ countdown--;
+ if (!countdown)
+ break;
+ usec_delay(mbx->usec_delay);
+ }
+
+ /* if we failed, all future posted messages fail until reset */
+ if (!countdown)
+ mbx->timeout = 0;
+out:
+ return countdown ? E1000_SUCCESS : -E1000_ERR_MBX;
+}
+
+/**
+ * e1000_read_posted_mbx - Wait for message notification and receive message
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ * @mbx_id: id of mailbox to write
+ *
+ * returns SUCCESS if it successfully received a message notification and
+ * copied it into the receive buffer.
+ **/
+s32 e1000_read_posted_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_read_posted_mbx");
+
+ if (!mbx->ops.read)
+ goto out;
+
+ ret_val = e1000_poll_for_msg(hw, mbx_id);
+
+ /* if ack received read message, otherwise we timed out */
+ if (!ret_val)
+ ret_val = mbx->ops.read(hw, msg, size, mbx_id);
+out:
+ return ret_val;
+}
+
+/**
+ * e1000_write_posted_mbx - Write a message to the mailbox, wait for ack
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ * @mbx_id: id of mailbox to write
+ *
+ * returns SUCCESS if it successfully copied message into the buffer and
+ * received an ack to that message within delay * timeout period
+ **/
+s32 e1000_write_posted_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_write_posted_mbx");
+
+ /* exit if either we can't write or there isn't a defined timeout */
+ if (!mbx->ops.write || !mbx->timeout)
+ goto out;
+
+ /* send msg */
+ ret_val = mbx->ops.write(hw, msg, size, mbx_id);
+
+ /* if msg sent wait until we receive an ack */
+ if (!ret_val)
+ ret_val = e1000_poll_for_ack(hw, mbx_id);
+out:
+ return ret_val;
+}
+
+/**
+ * e1000_init_mbx_ops_generic - Initialize mbx function pointers
+ * @hw: pointer to the HW structure
+ *
+ * Sets the function pointers to no-op functions
+ **/
+void e1000_init_mbx_ops_generic(struct e1000_hw *hw)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ mbx->ops.init_params = e1000_null_ops_generic;
+ mbx->ops.read = e1000_null_mbx_transact;
+ mbx->ops.write = e1000_null_mbx_transact;
+ mbx->ops.check_for_msg = e1000_null_mbx_check_for_flag;
+ mbx->ops.check_for_ack = e1000_null_mbx_check_for_flag;
+ mbx->ops.check_for_rst = e1000_null_mbx_check_for_flag;
+ mbx->ops.read_posted = e1000_read_posted_mbx;
+ mbx->ops.write_posted = e1000_write_posted_mbx;
+}
+
+/**
+ * e1000_read_v2p_mailbox - read v2p mailbox
+ * @hw: pointer to the HW structure
+ *
+ * This function is used to read the v2p mailbox without losing the read to
+ * clear status bits.
+ **/
+static u32 e1000_read_v2p_mailbox(struct e1000_hw *hw)
+{
+ u32 v2p_mailbox = E1000_READ_REG(hw, E1000_V2PMAILBOX(0));
+
+ v2p_mailbox |= hw->dev_spec.vf.v2p_mailbox;
+ hw->dev_spec.vf.v2p_mailbox |= v2p_mailbox & E1000_V2PMAILBOX_R2C_BITS;
+
+ return v2p_mailbox;
+}
+
+/**
+ * e1000_check_for_bit_vf - Determine if a status bit was set
+ * @hw: pointer to the HW structure
+ * @mask: bitmask for bits to be tested and cleared
+ *
+ * This function is used to check for the read to clear bits within
+ * the V2P mailbox.
+ **/
+static s32 e1000_check_for_bit_vf(struct e1000_hw *hw, u32 mask)
+{
+ u32 v2p_mailbox = e1000_read_v2p_mailbox(hw);
+ s32 ret_val = -E1000_ERR_MBX;
+
+ if (v2p_mailbox & mask)
+ ret_val = E1000_SUCCESS;
+
+ hw->dev_spec.vf.v2p_mailbox &= ~mask;
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_msg_vf - checks to see if the PF has sent mail
+ * @hw: pointer to the HW structure
+ * @mbx_id: id of mailbox to check
+ *
+ * returns SUCCESS if the PF has set the Status bit or else ERR_MBX
+ **/
+static s32 e1000_check_for_msg_vf(struct e1000_hw *hw, u16 mbx_id)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_check_for_msg_vf");
+
+ if (!e1000_check_for_bit_vf(hw, E1000_V2PMAILBOX_PFSTS)) {
+ ret_val = E1000_SUCCESS;
+ hw->mbx.stats.reqs++;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_ack_vf - checks to see if the PF has ACK'd
+ * @hw: pointer to the HW structure
+ * @mbx_id: id of mailbox to check
+ *
+ * returns SUCCESS if the PF has set the ACK bit or else ERR_MBX
+ **/
+static s32 e1000_check_for_ack_vf(struct e1000_hw *hw, u16 mbx_id)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_check_for_ack_vf");
+
+ if (!e1000_check_for_bit_vf(hw, E1000_V2PMAILBOX_PFACK)) {
+ ret_val = E1000_SUCCESS;
+ hw->mbx.stats.acks++;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_rst_vf - checks to see if the PF has reset
+ * @hw: pointer to the HW structure
+ * @mbx_id: id of mailbox to check
+ *
+ * returns TRUE if the PF has set the reset done bit or else FALSE
+ **/
+static s32 e1000_check_for_rst_vf(struct e1000_hw *hw, u16 mbx_id)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_check_for_rst_vf");
+
+ if (!e1000_check_for_bit_vf(hw, (E1000_V2PMAILBOX_RSTD |
+ E1000_V2PMAILBOX_RSTI))) {
+ ret_val = E1000_SUCCESS;
+ hw->mbx.stats.rsts++;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_obtain_mbx_lock_vf - obtain mailbox lock
+ * @hw: pointer to the HW structure
+ *
+ * return SUCCESS if we obtained the mailbox lock
+ **/
+static s32 e1000_obtain_mbx_lock_vf(struct e1000_hw *hw)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_obtain_mbx_lock_vf");
+
+ /* Take ownership of the buffer */
+ E1000_WRITE_REG(hw, E1000_V2PMAILBOX(0), E1000_V2PMAILBOX_VFU);
+
+ /* reserve mailbox for vf use */
+ if (e1000_read_v2p_mailbox(hw) & E1000_V2PMAILBOX_VFU)
+ ret_val = E1000_SUCCESS;
+
+ return ret_val;
+}
+
+/**
+ * e1000_write_mbx_vf - Write a message to the mailbox
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ * @mbx_id: id of mailbox to write
+ *
+ * returns SUCCESS if it successfully copied message into the buffer
+ **/
+static s32 e1000_write_mbx_vf(struct e1000_hw *hw, u32 *msg, u16 size,
+ u16 mbx_id)
+{
+ s32 ret_val;
+ u16 i;
+
+
+ DEBUGFUNC("e1000_write_mbx_vf");
+
+ /* lock the mailbox to prevent pf/vf race condition */
+ ret_val = e1000_obtain_mbx_lock_vf(hw);
+ if (ret_val)
+ goto out_no_write;
+
+ /* flush msg and acks as we are overwriting the message buffer */
+ e1000_check_for_msg_vf(hw, 0);
+ e1000_check_for_ack_vf(hw, 0);
+
+ /* copy the caller specified message to the mailbox memory buffer */
+ for (i = 0; i < size; i++)
+ E1000_WRITE_REG_ARRAY(hw, E1000_VMBMEM(0), i, msg[i]);
+
+ /* update stats */
+ hw->mbx.stats.msgs_tx++;
+
+ /* Drop VFU and interrupt the PF to tell it a message has been sent */
+ E1000_WRITE_REG(hw, E1000_V2PMAILBOX(0), E1000_V2PMAILBOX_REQ);
+
+out_no_write:
+ return ret_val;
+}
+
+/**
+ * e1000_read_mbx_vf - Reads a message from the inbox intended for vf
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ * @mbx_id: id of mailbox to read
+ *
+ * returns SUCCESS if it successfuly read message from buffer
+ **/
+static s32 e1000_read_mbx_vf(struct e1000_hw *hw, u32 *msg, u16 size,
+ u16 mbx_id)
+{
+ s32 ret_val = E1000_SUCCESS;
+ u16 i;
+
+ DEBUGFUNC("e1000_read_mbx_vf");
+
+ /* lock the mailbox to prevent pf/vf race condition */
+ ret_val = e1000_obtain_mbx_lock_vf(hw);
+ if (ret_val)
+ goto out_no_read;
+
+ /* copy the message from the mailbox memory buffer */
+ for (i = 0; i < size; i++)
+ msg[i] = E1000_READ_REG_ARRAY(hw, E1000_VMBMEM(0), i);
+
+ /* Acknowledge receipt and release mailbox, then we're done */
+ E1000_WRITE_REG(hw, E1000_V2PMAILBOX(0), E1000_V2PMAILBOX_ACK);
+
+ /* update stats */
+ hw->mbx.stats.msgs_rx++;
+
+out_no_read:
+ return ret_val;
+}
+
+/**
+ * e1000_init_mbx_params_vf - set initial values for vf mailbox
+ * @hw: pointer to the HW structure
+ *
+ * Initializes the hw->mbx struct to correct values for vf mailbox
+ */
+s32 e1000_init_mbx_params_vf(struct e1000_hw *hw)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+
+ /* start mailbox as timed out and let the reset_hw call set the timeout
+ * value to begin communications */
+ mbx->timeout = 0;
+ mbx->usec_delay = E1000_VF_MBX_INIT_DELAY;
+
+ mbx->size = E1000_VFMAILBOX_SIZE;
+
+ mbx->ops.read = e1000_read_mbx_vf;
+ mbx->ops.write = e1000_write_mbx_vf;
+ mbx->ops.read_posted = e1000_read_posted_mbx;
+ mbx->ops.write_posted = e1000_write_posted_mbx;
+ mbx->ops.check_for_msg = e1000_check_for_msg_vf;
+ mbx->ops.check_for_ack = e1000_check_for_ack_vf;
+ mbx->ops.check_for_rst = e1000_check_for_rst_vf;
+
+ mbx->stats.msgs_tx = 0;
+ mbx->stats.msgs_rx = 0;
+ mbx->stats.reqs = 0;
+ mbx->stats.acks = 0;
+ mbx->stats.rsts = 0;
+
+ return E1000_SUCCESS;
+}
+
+static s32 e1000_check_for_bit_pf(struct e1000_hw *hw, u32 mask)
+{
+ u32 mbvficr = E1000_READ_REG(hw, E1000_MBVFICR);
+ s32 ret_val = -E1000_ERR_MBX;
+
+ if (mbvficr & mask) {
+ ret_val = E1000_SUCCESS;
+ E1000_WRITE_REG(hw, E1000_MBVFICR, mask);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_msg_pf - checks to see if the VF has sent mail
+ * @hw: pointer to the HW structure
+ * @vf_number: the VF index
+ *
+ * returns SUCCESS if the VF has set the Status bit or else ERR_MBX
+ **/
+static s32 e1000_check_for_msg_pf(struct e1000_hw *hw, u16 vf_number)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_check_for_msg_pf");
+
+ if (!e1000_check_for_bit_pf(hw, E1000_MBVFICR_VFREQ_VF1 << vf_number)) {
+ ret_val = E1000_SUCCESS;
+ hw->mbx.stats.reqs++;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_ack_pf - checks to see if the VF has ACKed
+ * @hw: pointer to the HW structure
+ * @vf_number: the VF index
+ *
+ * returns SUCCESS if the VF has set the Status bit or else ERR_MBX
+ **/
+static s32 e1000_check_for_ack_pf(struct e1000_hw *hw, u16 vf_number)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_check_for_ack_pf");
+
+ if (!e1000_check_for_bit_pf(hw, E1000_MBVFICR_VFACK_VF1 << vf_number)) {
+ ret_val = E1000_SUCCESS;
+ hw->mbx.stats.acks++;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_rst_pf - checks to see if the VF has reset
+ * @hw: pointer to the HW structure
+ * @vf_number: the VF index
+ *
+ * returns SUCCESS if the VF has set the Status bit or else ERR_MBX
+ **/
+static s32 e1000_check_for_rst_pf(struct e1000_hw *hw, u16 vf_number)
+{
+ u32 vflre = E1000_READ_REG(hw, E1000_VFLRE);
+ s32 ret_val = -E1000_ERR_MBX;
+
+ DEBUGFUNC("e1000_check_for_rst_pf");
+
+ if (vflre & (1 << vf_number)) {
+ ret_val = E1000_SUCCESS;
+ E1000_WRITE_REG(hw, E1000_VFLRE, (1 << vf_number));
+ hw->mbx.stats.rsts++;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_obtain_mbx_lock_pf - obtain mailbox lock
+ * @hw: pointer to the HW structure
+ * @vf_number: the VF index
+ *
+ * return SUCCESS if we obtained the mailbox lock
+ **/
+static s32 e1000_obtain_mbx_lock_pf(struct e1000_hw *hw, u16 vf_number)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+ u32 p2v_mailbox;
+
+ DEBUGFUNC("e1000_obtain_mbx_lock_pf");
+
+ /* Take ownership of the buffer */
+ E1000_WRITE_REG(hw, E1000_P2VMAILBOX(vf_number), E1000_P2VMAILBOX_PFU);
+
+ /* reserve mailbox for vf use */
+ p2v_mailbox = E1000_READ_REG(hw, E1000_P2VMAILBOX(vf_number));
+ if (p2v_mailbox & E1000_P2VMAILBOX_PFU)
+ ret_val = E1000_SUCCESS;
+
+ return ret_val;
+}
+
+/**
+ * e1000_write_mbx_pf - Places a message in the mailbox
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ * @vf_number: the VF index
+ *
+ * returns SUCCESS if it successfully copied message into the buffer
+ **/
+static s32 e1000_write_mbx_pf(struct e1000_hw *hw, u32 *msg, u16 size,
+ u16 vf_number)
+{
+ s32 ret_val;
+ u16 i;
+
+ DEBUGFUNC("e1000_write_mbx_pf");
+
+ /* lock the mailbox to prevent pf/vf race condition */
+ ret_val = e1000_obtain_mbx_lock_pf(hw, vf_number);
+ if (ret_val)
+ goto out_no_write;
+
+ /* flush msg and acks as we are overwriting the message buffer */
+ e1000_check_for_msg_pf(hw, vf_number);
+ e1000_check_for_ack_pf(hw, vf_number);
+
+ /* copy the caller specified message to the mailbox memory buffer */
+ for (i = 0; i < size; i++)
+ E1000_WRITE_REG_ARRAY(hw, E1000_VMBMEM(vf_number), i, msg[i]);
+
+ /* Interrupt VF to tell it a message has been sent and release buffer*/
+ E1000_WRITE_REG(hw, E1000_P2VMAILBOX(vf_number), E1000_P2VMAILBOX_STS);
+
+ /* update stats */
+ hw->mbx.stats.msgs_tx++;
+
+out_no_write:
+ return ret_val;
+
+}
+
+/**
+ * e1000_read_mbx_pf - Read a message from the mailbox
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ * @vf_number: the VF index
+ *
+ * This function copies a message from the mailbox buffer to the caller's
+ * memory buffer. The presumption is that the caller knows that there was
+ * a message due to a VF request so no polling for message is needed.
+ **/
+static s32 e1000_read_mbx_pf(struct e1000_hw *hw, u32 *msg, u16 size,
+ u16 vf_number)
+{
+ s32 ret_val;
+ u16 i;
+
+ DEBUGFUNC("e1000_read_mbx_pf");
+
+ /* lock the mailbox to prevent pf/vf race condition */
+ ret_val = e1000_obtain_mbx_lock_pf(hw, vf_number);
+ if (ret_val)
+ goto out_no_read;
+
+ /* copy the message to the mailbox memory buffer */
+ for (i = 0; i < size; i++)
+ msg[i] = E1000_READ_REG_ARRAY(hw, E1000_VMBMEM(vf_number), i);
+
+ /* Acknowledge the message and release buffer */
+ E1000_WRITE_REG(hw, E1000_P2VMAILBOX(vf_number), E1000_P2VMAILBOX_ACK);
+
+ /* update stats */
+ hw->mbx.stats.msgs_rx++;
+
+out_no_read:
+ return ret_val;
+}
+
+/**
+ * e1000_init_mbx_params_pf - set initial values for pf mailbox
+ * @hw: pointer to the HW structure
+ *
+ * Initializes the hw->mbx struct to correct values for pf mailbox
+ */
+s32 e1000_init_mbx_params_pf(struct e1000_hw *hw)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+
+ if (hw->mac.type == e1000_82576) {
+ mbx->timeout = 0;
+ mbx->usec_delay = 0;
+
+ mbx->size = E1000_VFMAILBOX_SIZE;
+
+ mbx->ops.read = e1000_read_mbx_pf;
+ mbx->ops.write = e1000_write_mbx_pf;
+ mbx->ops.read_posted = e1000_read_posted_mbx;
+ mbx->ops.write_posted = e1000_write_posted_mbx;
+ mbx->ops.check_for_msg = e1000_check_for_msg_pf;
+ mbx->ops.check_for_ack = e1000_check_for_ack_pf;
+ mbx->ops.check_for_rst = e1000_check_for_rst_pf;
+
+ mbx->stats.msgs_tx = 0;
+ mbx->stats.msgs_rx = 0;
+ mbx->stats.reqs = 0;
+ mbx->stats.acks = 0;
+ mbx->stats.rsts = 0;
+ }
+
+ return E1000_SUCCESS;
+}
+
Added: stable/7/sys/dev/e1000/e1000_mbx.h
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ stable/7/sys/dev/e1000/e1000_mbx.h Sat Nov 27 04:46:16 2010 (r215933)
@@ -0,0 +1,106 @@
+/******************************************************************************
+
+ Copyright (c) 2001-2010, 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.
+
+******************************************************************************/
+/*$FreeBSD$*/
+
+#ifndef _E1000_MBX_H_
+#define _E1000_MBX_H_
+
+#include "e1000_api.h"
+
+/* Define mailbox register bits */
+#define E1000_V2PMAILBOX_REQ 0x00000001 /* Request for PF Ready bit */
+#define E1000_V2PMAILBOX_ACK 0x00000002 /* Ack PF message received */
+#define E1000_V2PMAILBOX_VFU 0x00000004 /* VF owns the mailbox buffer */
+#define E1000_V2PMAILBOX_PFU 0x00000008 /* PF owns the mailbox buffer */
+#define E1000_V2PMAILBOX_PFSTS 0x00000010 /* PF wrote a message in the MB */
+#define E1000_V2PMAILBOX_PFACK 0x00000020 /* PF ack the previous VF msg */
+#define E1000_V2PMAILBOX_RSTI 0x00000040 /* PF has reset indication */
+#define E1000_V2PMAILBOX_RSTD 0x00000080 /* PF has indicated reset done */
+#define E1000_V2PMAILBOX_R2C_BITS 0x000000B0 /* All read to clear bits */
+
+#define E1000_P2VMAILBOX_STS 0x00000001 /* Initiate message send to VF */
+#define E1000_P2VMAILBOX_ACK 0x00000002 /* Ack message recv'd from VF */
+#define E1000_P2VMAILBOX_VFU 0x00000004 /* VF owns the mailbox buffer */
+#define E1000_P2VMAILBOX_PFU 0x00000008 /* PF owns the mailbox buffer */
+#define E1000_P2VMAILBOX_RVFU 0x00000010 /* Reset VFU - used when VF stuck */
+
+#define E1000_MBVFICR_VFREQ_MASK 0x000000FF /* bits for VF messages */
+#define E1000_MBVFICR_VFREQ_VF1 0x00000001 /* bit for VF 1 message */
+#define E1000_MBVFICR_VFACK_MASK 0x00FF0000 /* bits for VF acks */
+#define E1000_MBVFICR_VFACK_VF1 0x00010000 /* bit for VF 1 ack */
+
+#define E1000_VFMAILBOX_SIZE 16 /* 16 32 bit words - 64 bytes */
+
+/* If it's a E1000_VF_* msg then it originates in the VF and is sent to the
+ * PF. The reverse is TRUE if it is E1000_PF_*.
+ * Message ACK's are the value or'd with 0xF0000000
+ */
+#define E1000_VT_MSGTYPE_ACK 0x80000000 /* Messages below or'd with
+ * this are the ACK */
+#define E1000_VT_MSGTYPE_NACK 0x40000000 /* Messages below or'd with
+ * this are the NACK */
+#define E1000_VT_MSGTYPE_CTS 0x20000000 /* Indicates that VF is still
+ clear to send requests */
+#define E1000_VT_MSGINFO_SHIFT 16
+/* bits 23:16 are used for exra info for certain messages */
+#define E1000_VT_MSGINFO_MASK (0xFF << E1000_VT_MSGINFO_SHIFT)
+
+#define E1000_VF_RESET 0x01 /* VF requests reset */
+#define E1000_VF_SET_MAC_ADDR 0x02 /* VF requests to set MAC addr */
+#define E1000_VF_SET_MULTICAST 0x03 /* VF requests to set MC addr */
+#define E1000_VF_SET_MULTICAST_COUNT_MASK (0x1F << E1000_VT_MSGINFO_SHIFT)
+#define E1000_VF_SET_MULTICAST_OVERFLOW (0x80 << E1000_VT_MSGINFO_SHIFT)
+#define E1000_VF_SET_VLAN 0x04 /* VF requests to set VLAN */
+#define E1000_VF_SET_VLAN_ADD (0x01 << E1000_VT_MSGINFO_SHIFT)
+#define E1000_VF_SET_LPE 0x05 /* VF requests to set VMOLR.LPE */
+#define E1000_VF_SET_PROMISC 0x06 /*VF requests to clear VMOLR.ROPE/MPME*/
+#define E1000_VF_SET_PROMISC_UNICAST (0x01 << E1000_VT_MSGINFO_SHIFT)
+#define E1000_VF_SET_PROMISC_MULTICAST (0x02 << E1000_VT_MSGINFO_SHIFT)
+
+#define E1000_PF_CONTROL_MSG 0x0100 /* PF control message */
+
+#define E1000_VF_MBX_INIT_TIMEOUT 2000 /* number of retries on mailbox */
+#define E1000_VF_MBX_INIT_DELAY 500 /* microseconds between retries */
+
+s32 e1000_read_mbx(struct e1000_hw *, u32 *, u16, u16);
+s32 e1000_write_mbx(struct e1000_hw *, u32 *, u16, u16);
+s32 e1000_read_posted_mbx(struct e1000_hw *, u32 *, u16, u16);
+s32 e1000_write_posted_mbx(struct e1000_hw *, u32 *, u16, u16);
+s32 e1000_check_for_msg(struct e1000_hw *, u16);
+s32 e1000_check_for_ack(struct e1000_hw *, u16);
+s32 e1000_check_for_rst(struct e1000_hw *, u16);
+void e1000_init_mbx_ops_generic(struct e1000_hw *hw);
+s32 e1000_init_mbx_params_vf(struct e1000_hw *);
+s32 e1000_init_mbx_params_pf(struct e1000_hw *);
+
+#endif /* _E1000_MBX_H_ */
Added: stable/7/sys/dev/e1000/e1000_vf.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ stable/7/sys/dev/e1000/e1000_vf.c Sat Nov 27 04:46:16 2010 (r215933)
@@ -0,0 +1,574 @@
+/******************************************************************************
+
+ Copyright (c) 2001-2010, 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 */
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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