eth: remove neterion/vxge

The last meaningful change to this driver was made by Jon in 2011.
As much as we'd like to believe that this is because the code is
perfect the chances are nobody is using this hardware.

Because of the size of this driver there is a nontrivial maintenance
cost to keeping this code around, in the last 2 years we're averaging
more than 1 change a month. Some of which require nontrivial review
effort, see commit 877fe9d49b74 ("Revert "drivers/net/ethernet/neterion/vxge:
Fix a use-after-free bug in vxge-main.c"") for example.

Let's try to remove this driver. In general, IMHO, we need to
establish a clear path for shedding dead code. It will be hard
to unless we have some experience trying to delete stuff.

Link: https://lore.kernel.org/r/20220701044234.706229-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

13 files changed, 0 insertions, 23147 deletions

diff --git a/drivers/net/ethernet/neterion/Kconfig b/drivers/net/ethernet/neterion/Kconfig
index 0c0d127906dd..09a89e72f904 100644
--- a/drivers/net/ethernet/neterion/Kconfig
+++ b/drivers/net/ethernet/neterion/Kconfig
@@ -32,28 +32,4 @@ config S2IO
 	  To compile this driver as a module, choose M here. The module
 	  will be called s2io.
 
-config VXGE
-	tristate "Neterion (Exar) X3100 Series 10GbE PCIe Server Adapter"
-	depends on PCI
-	help
-	  This driver supports Exar Corp's X3100 Series 10 GbE PCIe
-	  I/O Virtualized Server Adapter.  These were originally released from
-	  Neterion, which was later acquired by Exar.  So, the adapters might be
-	  labeled as either one, depending on its age.
-
-	  More specific information on configuring the driver is in
-	  <file:Documentation/networking/device_drivers/ethernet/neterion/vxge.rst>.
-
-	  To compile this driver as a module, choose M here. The module
-	  will be called vxge.
-
-config VXGE_DEBUG_TRACE_ALL
-	bool "Enabling All Debug trace statements in driver"
-	default n
-	depends on VXGE
-	help
-	  Say Y here if you want to enabling all the debug trace statements in
-	  the vxge driver. By default only few debug trace statements are
-	  enabled.
-
 endif # NET_VENDOR_NETERION
diff --git a/drivers/net/ethernet/neterion/Makefile b/drivers/net/ethernet/neterion/Makefile
index 87ede8a47bb8..de98b4e6eff9 100644
--- a/drivers/net/ethernet/neterion/Makefile
+++ b/drivers/net/ethernet/neterion/Makefile
@@ -4,4 +4,3 @@
 #
 
 obj-$(CONFIG_S2IO) += s2io.o
-obj-$(CONFIG_VXGE) += vxge/
diff --git a/drivers/net/ethernet/neterion/vxge/Makefile b/drivers/net/ethernet/neterion/vxge/Makefile
deleted file mode 100644
index 0820e81ca7fb..000000000000
--- a/drivers/net/ethernet/neterion/vxge/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Makefile for Exar Corp's X3100 Series 10 GbE PCIe I/O
-# Virtualized Server Adapter linux driver
-
-obj-$(CONFIG_VXGE) += vxge.o
-
-vxge-objs := vxge-config.o vxge-traffic.o vxge-ethtool.o vxge-main.o
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
deleted file mode 100644
index b6ee004058e5..000000000000
--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
+++ /dev/null
@@ -1,5099 +0,0 @@
-/******************************************************************************
- * This software may be used and distributed according to the terms of
- * the GNU General Public License (GPL), incorporated herein by reference.
- * Drivers based on or derived from this code fall under the GPL and must
- * retain the authorship, copyright and license notice.  This file is not
- * a complete program and may only be used when the entire operating
- * system is licensed under the GPL.
- * See the file COPYING in this distribution for more information.
- *
- * vxge-config.c: Driver for Exar Corp's X3100 Series 10GbE PCIe I/O
- *                Virtualized Server Adapter.
- * Copyright(c) 2002-2010 Exar Corp.
- ******************************************************************************/
-#include <linux/vmalloc.h>
-#include <linux/etherdevice.h>
-#include <linux/io-64-nonatomic-lo-hi.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-
-#include "vxge-traffic.h"
-#include "vxge-config.h"
-#include "vxge-main.h"
-
-#define VXGE_HW_VPATH_STATS_PIO_READ(offset) {				\
-	status = __vxge_hw_vpath_stats_access(vpath,			\
-					      VXGE_HW_STATS_OP_READ,	\
-					      offset,			\
-					      &val64);			\
-	if (status != VXGE_HW_OK)					\
-		return status;						\
-}
-
-static void
-vxge_hw_vpath_set_zero_rx_frm_len(struct vxge_hw_vpath_reg __iomem *vp_reg)
-{
-	u64 val64;
-
-	val64 = readq(&vp_reg->rxmac_vcfg0);
-	val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
-	writeq(val64, &vp_reg->rxmac_vcfg0);
-	val64 = readq(&vp_reg->rxmac_vcfg0);
-}
-
-/*
- * vxge_hw_vpath_wait_receive_idle - Wait for Rx to become idle
- */
-int vxge_hw_vpath_wait_receive_idle(struct __vxge_hw_device *hldev, u32 vp_id)
-{
-	struct vxge_hw_vpath_reg __iomem *vp_reg;
-	struct __vxge_hw_virtualpath *vpath;
-	u64 val64, rxd_count, rxd_spat;
-	int count = 0, total_count = 0;
-
-	vpath = &hldev->virtual_paths[vp_id];
-	vp_reg = vpath->vp_reg;
-
-	vxge_hw_vpath_set_zero_rx_frm_len(vp_reg);
-
-	/* Check that the ring controller for this vpath has enough free RxDs
-	 * to send frames to the host.  This is done by reading the
-	 * PRC_RXD_DOORBELL_VPn register and comparing the read value to the
-	 * RXD_SPAT value for the vpath.
-	 */
-	val64 = readq(&vp_reg->prc_cfg6);
-	rxd_spat = VXGE_HW_PRC_CFG6_GET_RXD_SPAT(val64) + 1;
-	/* Use a factor of 2 when comparing rxd_count against rxd_spat for some
-	 * leg room.
-	 */
-	rxd_spat *= 2;
-
-	do {
-		mdelay(1);
-
-		rxd_count = readq(&vp_reg->prc_rxd_doorbell);
-
-		/* Check that the ring controller for this vpath does
-		 * not have any frame in its pipeline.
-		 */
-		val64 = readq(&vp_reg->frm_in_progress_cnt);
-		if ((rxd_count <= rxd_spat) || (val64 > 0))
-			count = 0;
-		else
-			count++;
-		total_count++;
-	} while ((count < VXGE_HW_MIN_SUCCESSIVE_IDLE_COUNT) &&
-			(total_count < VXGE_HW_MAX_POLLING_COUNT));
-
-	if (total_count >= VXGE_HW_MAX_POLLING_COUNT)
-		printk(KERN_ALERT "%s: Still Receiving traffic. Abort wait\n",
-			__func__);
-
-	return total_count;
-}
-
-/* vxge_hw_device_wait_receive_idle - This function waits until all frames
- * stored in the frame buffer for each vpath assigned to the given
- * function (hldev) have been sent to the host.
- */
-void vxge_hw_device_wait_receive_idle(struct __vxge_hw_device *hldev)
-{
-	int i, total_count = 0;
-
-	for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
-		if (!(hldev->vpaths_deployed & vxge_mBIT(i)))
-			continue;
-
-		total_count += vxge_hw_vpath_wait_receive_idle(hldev, i);
-		if (total_count >= VXGE_HW_MAX_POLLING_COUNT)
-			break;
-	}
-}
-
-/*
- * __vxge_hw_device_register_poll
- * Will poll certain register for specified amount of time.
- * Will poll until masked bit is not cleared.
- */
-static enum vxge_hw_status
-__vxge_hw_device_register_poll(void __iomem *reg, u64 mask, u32 max_millis)
-{
-	u64 val64;
-	u32 i = 0;
-
-	udelay(10);
-
-	do {
-		val64 = readq(reg);
-		if (!(val64 & mask))
-			return VXGE_HW_OK;
-		udelay(100);
-	} while (++i <= 9);
-
-	i = 0;
-	do {
-		val64 = readq(reg);
-		if (!(val64 & mask))
-			return VXGE_HW_OK;
-		mdelay(1);
-	} while (++i <= max_millis);
-
-	return VXGE_HW_FAIL;
-}
-
-static inline enum vxge_hw_status
-__vxge_hw_pio_mem_write64(u64 val64, void __iomem *addr,
-			  u64 mask, u32 max_millis)
-{
-	__vxge_hw_pio_mem_write32_lower((u32)vxge_bVALn(val64, 32, 32), addr);
-	wmb();
-	__vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32), addr);
-	wmb();
-
-	return __vxge_hw_device_register_poll(addr, mask, max_millis);
-}
-
-static enum vxge_hw_status
-vxge_hw_vpath_fw_api(struct __vxge_hw_virtualpath *vpath, u32 action,
-		     u32 fw_memo, u32 offset, u64 *data0, u64 *data1,
-		     u64 *steer_ctrl)
-{
-	struct vxge_hw_vpath_reg __iomem *vp_reg = vpath->vp_reg;
-	enum vxge_hw_status status;
-	u64 val64;
-	u32 retry = 0, max_retry = 3;
-
-	spin_lock(&vpath->lock);
-	if (!vpath->vp_open) {
-		spin_unlock(&vpath->lock);
-		max_retry = 100;
-	}
-
-	writeq(*data0, &vp_reg->rts_access_steer_data0);
-	writeq(*data1, &vp_reg->rts_access_steer_data1);
-	wmb();
-
-	val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(action) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(fw_memo) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
-		*steer_ctrl;
-
-	status = __vxge_hw_pio_mem_write64(val64,
-					   &vp_reg->rts_access_steer_ctrl,
-					   VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
-					   VXGE_HW_DEF_DEVICE_POLL_MILLIS);
-
-	/* The __vxge_hw_device_register_poll can udelay for a significant
-	 * amount of time, blocking other process from the CPU.  If it delays
-	 * for ~5secs, a NMI error can occur.  A way around this is to give up
-	 * the processor via msleep, but this is not allowed is under lock.
-	 * So, only allow it to sleep for ~4secs if open.  Otherwise, delay for
-	 * 1sec and sleep for 10ms until the firmware operation has completed
-	 * or timed-out.
-	 */
-	while ((status != VXGE_HW_OK) && retry++ < max_retry) {
-		if (!vpath->vp_open)
-			msleep(20);
-		status = __vxge_hw_device_register_poll(
-					&vp_reg->rts_access_steer_ctrl,
-					VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
-					VXGE_HW_DEF_DEVICE_POLL_MILLIS);
-	}
-
-	if (status != VXGE_HW_OK)
-		goto out;
-
-	val64 = readq(&vp_reg->rts_access_steer_ctrl);
-	if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
-		*data0 = readq(&vp_reg->rts_access_steer_data0);
-		*data1 = readq(&vp_reg->rts_access_steer_data1);
-		*steer_ctrl = val64;
-	} else
-		status = VXGE_HW_FAIL;
-
-out:
-	if (vpath->vp_open)
-		spin_unlock(&vpath->lock);
-	return status;
-}
-
-enum vxge_hw_status
-vxge_hw_upgrade_read_version(struct __vxge_hw_device *hldev, u32 *major,
-			     u32 *minor, u32 *build)
-{
-	u64 data0 = 0, data1 = 0, steer_ctrl = 0;
-	struct __vxge_hw_virtualpath *vpath;
-	enum vxge_hw_status status;
-
-	vpath = &hldev->virtual_paths[hldev->first_vp_id];
-
-	status = vxge_hw_vpath_fw_api(vpath,
-				      VXGE_HW_FW_UPGRADE_ACTION,
-				      VXGE_HW_FW_UPGRADE_MEMO,
-				      VXGE_HW_FW_UPGRADE_OFFSET_READ,
-				      &data0, &data1, &steer_ctrl);
-	if (status != VXGE_HW_OK)
-		return status;
-
-	*major = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MAJOR(data0);
-	*minor = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MINOR(data0);
-	*build = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_BUILD(data0);
-
-	return status;
-}
-
-enum vxge_hw_status vxge_hw_flash_fw(struct __vxge_hw_device *hldev)
-{
-	u64 data0 = 0, data1 = 0, steer_ctrl = 0;
-	struct __vxge_hw_virtualpath *vpath;
-	enum vxge_hw_status status;
-	u32 ret;
-
-	vpath = &hldev->virtual_paths[hldev->first_vp_id];
-
-	status = vxge_hw_vpath_fw_api(vpath,
-				      VXGE_HW_FW_UPGRADE_ACTION,
-				      VXGE_HW_FW_UPGRADE_MEMO,
-				      VXGE_HW_FW_UPGRADE_OFFSET_COMMIT,
-				      &data0, &data1, &steer_ctrl);
-	if (status != VXGE_HW_OK) {
-		vxge_debug_init(VXGE_ERR, "%s: FW upgrade failed", __func__);
-		goto exit;
-	}
-
-	ret = VXGE_HW_RTS_ACCESS_STEER_CTRL_GET_ACTION(steer_ctrl) & 0x7F;
-	if (ret != 1) {
-		vxge_debug_init(VXGE_ERR, "%s: FW commit failed with error %d",
-				__func__, ret);
-		status = VXGE_HW_FAIL;
-	}
-
-exit:
-	return status;
-}
-
-enum vxge_hw_status
-vxge_update_fw_image(struct __vxge_hw_device *hldev, const u8 *fwdata, int size)
-{
-	u64 data0 = 0, data1 = 0, steer_ctrl = 0;
-	struct __vxge_hw_virtualpath *vpath;
-	enum vxge_hw_status status;
-	int ret_code, sec_code;
-
-	vpath = &hldev->virtual_paths[hldev->first_vp_id];
-
-	/* send upgrade start command */
-	status = vxge_hw_vpath_fw_api(vpath,
-				      VXGE_HW_FW_UPGRADE_ACTION,
-				      VXGE_HW_FW_UPGRADE_MEMO,
-				      VXGE_HW_FW_UPGRADE_OFFSET_START,
-				      &data0, &data1, &steer_ctrl);
-	if (status != VXGE_HW_OK) {
-		vxge_debug_init(VXGE_ERR, " %s: Upgrade start cmd failed",
-				__func__);
-		return status;
-	}
-
-	/* Transfer fw image to adapter 16 bytes at a time */
-	for (; size > 0; size -= VXGE_HW_FW_UPGRADE_BLK_SIZE) {
-		steer_ctrl = 0;
-
-		/* The next 128bits of fwdata to be loaded onto the adapter */
-		data0 = *((u64 *)fwdata);
-		data1 = *((u64 *)fwdata + 1);
-
-		status = vxge_hw_vpath_fw_api(vpath,
-					      VXGE_HW_FW_UPGRADE_ACTION,
-					      VXGE_HW_FW_UPGRADE_MEMO,
-					      VXGE_HW_FW_UPGRADE_OFFSET_SEND,
-					      &data0, &data1, &steer_ctrl);
-		if (status != VXGE_HW_OK) {
-			vxge_debug_init(VXGE_ERR, "%s: Upgrade send failed",
-					__func__);
-			goto out;
-		}
-
-		ret_code = VXGE_HW_UPGRADE_GET_RET_ERR_CODE(data0);
-		switch (ret_code) {
-		case VXGE_HW_FW_UPGRADE_OK:
-			/* All OK, send next 16 bytes. */
-			break;
-		case VXGE_FW_UPGRADE_BYTES2SKIP:
-			/* skip bytes in the stream */
-			fwdata += (data0 >> 8) & 0xFFFFFFFF;
-			break;
-		case VXGE_HW_FW_UPGRADE_DONE:
-			goto out;
-		case VXGE_HW_FW_UPGRADE_ERR:
-			sec_code = VXGE_HW_UPGRADE_GET_SEC_ERR_CODE(data0);
-			switch (sec_code) {
-			case VXGE_HW_FW_UPGRADE_ERR_CORRUPT_DATA_1:
-			case VXGE_HW_FW_UPGRADE_ERR_CORRUPT_DATA_7:
-				printk(KERN_ERR
-				       "corrupted data from .ncf file\n");
-				break;
-			case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_3:
-			case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_4:
-			case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_5:
-			case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_6:
-			case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_8:
-				printk(KERN_ERR "invalid .ncf file\n");
-				break;
-			case VXGE_HW_FW_UPGRADE_ERR_BUFFER_OVERFLOW:
-				printk(KERN_ERR "buffer overflow\n");
-				break;
-			case VXGE_HW_FW_UPGRADE_ERR_FAILED_TO_FLASH:
-				printk(KERN_ERR "failed to flash the image\n");
-				break;
-			case VXGE_HW_FW_UPGRADE_ERR_GENERIC_ERROR_UNKNOWN:
-				printk(KERN_ERR
-				       "generic error. Unknown error type\n");
-				break;
-			default:
-				printk(KERN_ERR "Unknown error of type %d\n",
-				       sec_code);
-				break;
-			}
-			status = VXGE_HW_FAIL;
-			goto out;
-		default:
-			printk(KERN_ERR "Unknown FW error: %d\n", ret_code);
-			status = VXGE_HW_FAIL;
-			goto out;
-		}
-		/* point to next 16 bytes */
-		fwdata += VXGE_HW_FW_UPGRADE_BLK_SIZE;
-	}
-out:
-	return status;
-}
-
-enum vxge_hw_status
-vxge_hw_vpath_eprom_img_ver_get(struct __vxge_hw_device *hldev,
-				struct eprom_image *img)
-{
-	u64 data0 = 0, data1 = 0, steer_ctrl = 0;
-	struct __vxge_hw_virtualpath *vpath;
-	enum vxge_hw_status status;
-	int i;
-
-	vpath = &hldev->virtual_paths[hldev->first_vp_id];
-
-	for (i = 0; i < VXGE_HW_MAX_ROM_IMAGES; i++) {
-		data0 = VXGE_HW_RTS_ACCESS_STEER_ROM_IMAGE_INDEX(i);
-		data1 = steer_ctrl = 0;
-
-		status = vxge_hw_vpath_fw_api(vpath,
-			VXGE_HW_FW_API_GET_EPROM_REV,
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
-			0, &data0, &data1, &steer_ctrl);
-		if (status != VXGE_HW_OK)
-			break;
-
-		img[i].is_valid = VXGE_HW_GET_EPROM_IMAGE_VALID(data0);
-		img[i].index = VXGE_HW_GET_EPROM_IMAGE_INDEX(data0);
-		img[i].type = VXGE_HW_GET_EPROM_IMAGE_TYPE(data0);
-		img[i].version = VXGE_HW_GET_EPROM_IMAGE_REV(data0);
-	}
-
-	return status;
-}
-
-/*
- * __vxge_hw_channel_free - Free memory allocated for channel
- * This function deallocates memory from the channel and various arrays
- * in the channel
- */
-static void __vxge_hw_channel_free(struct __vxge_hw_channel *channel)
-{
-	kfree(channel->work_arr);
-	kfree(channel->free_arr);
-	kfree(channel->reserve_arr);
-	kfree(channel->orig_arr);
-	kfree(channel);
-}
-
-/*
- * __vxge_hw_channel_initialize - Initialize a channel
- * This function initializes a channel by properly setting the
- * various references
- */
-static enum vxge_hw_status
-__vxge_hw_channel_initialize(struct __vxge_hw_channel *channel)
-{
-	u32 i;
-	struct __vxge_hw_virtualpath *vpath;
-
-	vpath = channel->vph->vpath;
-
-	if ((channel->reserve_arr != NULL) && (channel->orig_arr != NULL)) {
-		for (i = 0; i < channel->length; i++)
-			channel->orig_arr[i] = channel->reserve_arr[i];
-	}
-
-	switch (channel->type) {
-	case VXGE_HW_CHANNEL_TYPE_FIFO:
-		vpath->fifoh = (struct __vxge_hw_fifo *)channel;
-		channel->stats = &((struct __vxge_hw_fifo *)
-				channel)->stats->common_stats;
-		break;
-	case VXGE_HW_CHANNEL_TYPE_RING:
-		vpath->ringh = (struct __vxge_hw_ring *)channel;
-		channel->stats = &((struct __vxge_hw_ring *)
-				channel)->stats->common_stats;
-		break;
-	default:
-		break;
-	}
-
-	return VXGE_HW_OK;
-}
-
-/*
- * __vxge_hw_channel_reset - Resets a channel
- * This function resets a channel by properly setting the various references
- */
-static enum vxge_hw_status
-__vxge_hw_channel_reset(struct __vxge_hw_channel *channel)
-{
-	u32 i;
-
-	for (i = 0; i < channel->length; i++) {
-		if (channel->reserve_arr != NULL)
-			channel->reserve_arr[i] = channel->orig_arr[i];
-		if (channel->free_arr != NULL)
-			channel->free_arr[i] = NULL;
-		if (channel->work_arr != NULL)
-			channel->work_arr[i] = NULL;
-	}
-	channel->free_ptr = channel->length;
-	channel->reserve_ptr = channel->length;
-	channel->reserve_top = 0;
-	channel->post_index = 0;
-	channel->compl_index = 0;
-
-	return VXGE_HW_OK;
-}
-
-/*
- * __vxge_hw_device_pci_e_init
- * Initialize certain PCI/PCI-X configuration registers
- * with recommended values. Save config space for future hw resets.
- */
-static void __vxge_hw_device_pci_e_init(struct __vxge_hw_device *hldev)
-{
-	u16 cmd = 0;
-
-	/* Set the PErr Repconse bit and SERR in PCI command register. */
-	pci_read_config_word(hldev->pdev, PCI_COMMAND, &cmd);
-	cmd |= 0x140;
-	pci_write_config_word(hldev->pdev, PCI_COMMAND, cmd);
-
-	pci_save_state(hldev->pdev);
-}
-
-/* __vxge_hw_device_vpath_reset_in_prog_check - Check if vpath reset
- * in progress
- * This routine checks the vpath reset in progress register is turned zero
- */
-static enum vxge_hw_status
-__vxge_hw_device_vpath_reset_in_prog_check(u64 __iomem *vpath_rst_in_prog)
-{
-	enum vxge_hw_status status;
-	status = __vxge_hw_device_register_poll(vpath_rst_in_prog,
-			VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG(0x1ffff),
-			VXGE_HW_DEF_DEVICE_POLL_MILLIS);
-	return status;
-}
-
-/*
- * _hw_legacy_swapper_set - Set the swapper bits for the legacy secion.
- * Set the swapper bits appropriately for the lagacy section.
- */
-static enum vxge_hw_status
-__vxge_hw_legacy_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg)
-{
-	u64 val64;
-	enum vxge_hw_status status = VXGE_HW_OK;
-
-	val64 = readq(&legacy_reg->toc_swapper_fb);
-
-	wmb();
-
-	switch (val64) {
-	case VXGE_HW_SWAPPER_INITIAL_VALUE:
-		return status;
-
-	case VXGE_HW_SWAPPER_BYTE_SWAPPED_BIT_FLIPPED:
-		writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE,
-			&legacy_reg->pifm_rd_swap_en);
-		writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE,
-			&legacy_reg->pifm_rd_flip_en);
-		writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
-			&legacy_reg->pifm_wr_swap_en);
-		writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE,
-			&legacy_reg->pifm_wr_flip_en);
-		break;
-
-	case VXGE_HW_SWAPPER_BYTE_SWAPPED:
-		writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE,
-			&legacy_reg->pifm_rd_swap_en);
-		writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
-			&legacy_reg->pifm_wr_swap_en);
-		break;
-
-	case VXGE_HW_SWAPPER_BIT_FLIPPED:
-		writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE,
-			&legacy_reg->pifm_rd_flip_en);
-		writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE,
-			&legacy_reg->pifm_wr_flip_en);
-		break;
-	}
-
-	wmb();
-
-	val64 = readq(&legacy_reg->toc_swapper_fb);
-
-	if (val64 != VXGE_HW_SWAPPER_INITIAL_VALUE)
-		status = VXGE_HW_ERR_SWAPPER_CTRL;
-
-	return status;
-}
-
-/*
- * __vxge_hw_device_toc_get
- * This routine sets the swapper and reads the toc pointer and returns the
- * memory mapped address of the toc
- */
-static struct vxge_hw_toc_reg __iomem *
-__vxge_hw_device_toc_get(void __iomem *bar0)
-{
-	u64 val64;
-	struct vxge_hw_toc_reg __iomem *toc = NULL;
-	enum vxge_hw_status status;
-
-	struct vxge_hw_legacy_reg __iomem *legacy_reg =
-		(struct vxge_hw_legacy_reg __iomem *)bar0;
-
-	status = __vxge_hw_legacy_swapper_set(legacy_reg);
-	if (status != VXGE_HW_OK)
-		goto exit;
-
-	val64 =	readq(&legacy_reg->toc_first_pointer);
-	toc = bar0 + val64;
-exit:
-	return toc;
-}
-
-/*
- * __vxge_hw_device_reg_addr_get
- * This routine sets the swapper and reads the toc pointer and initializes the
- * register location pointers in the device object. It waits until the ric is
- * completed initializing registers.
- */
-static enum vxge_hw_status
-__vxge_hw_device_reg_addr_get(struct __vxge_hw_device *hldev)
-{
-	u64 val64;
-	u32 i;
-	enum vxge_hw_status status = VXGE_HW_OK;
-
-	hldev->legacy_reg = hldev->bar0;
-
-	hldev->toc_reg = __vxge_hw_device_toc_get(hldev->bar0);
-	if (hldev->toc_reg  == NULL) {
-		status = VXGE_HW_FAIL;
-		goto exit;
-	}
-
-	val64 = readq(&hldev->toc_reg->toc_common_pointer);
-	hldev->common_reg = hldev->bar0 + val64;
-
-	val64 = readq(&hldev->toc_reg->toc_mrpcim_pointer);
-	hldev->mrpcim_reg = hldev->bar0 + val64;
-
-	for (i = 0; i < VXGE_HW_TITAN_SRPCIM_REG_SPACES; i++) {
-		val64 = readq(&hldev->toc_reg->toc_srpcim_pointer[i]);
-		hldev->srpcim_reg[i] = hldev->bar0 + val64;
-	}
-
-	for (i = 0; i < VXGE_HW_TITAN_VPMGMT_REG_SPACES; i++) {
-		val64 = readq(&hldev->toc_reg->toc_vpmgmt_pointer[i]);
-		hldev->vpmgmt_reg[i] = hldev->bar0 + val64;
-	}
-
-	for (i = 0; i < VXGE_HW_TITAN_VPATH_REG_SPACES; i++) {
-		val64 = readq(&hldev->toc_reg->toc_vpath_pointer[i]);
-		hldev->vpath_reg[i] = hldev->bar0 + val64;
-	}
-
-	val64 = readq(&hldev->toc_reg->toc_kdfc);
-
-	switch (VXGE_HW_TOC_GET_KDFC_INITIAL_BIR(val64)) {
-	case 0:
-		hldev->kdfc = hldev->bar0 + VXGE_HW_TOC_GET_KDFC_INITIAL_OFFSET(val64) ;
-		break;
-	default:
-		break;
-	}
-
-	status = __vxge_hw_device_vpath_reset_in_prog_check(
-			(u64 __iomem *)&hldev->common_reg->vpath_rst_in_prog);
-exit:
-	return status;
-}
-
-/*
- * __vxge_hw_device_access_rights_get: Get Access Rights of the driver
- * This routine returns the Access Rights of the driver
- */
-static u32
-__vxge_hw_device_access_rights_get(u32 host_type, u32 func_id)
-{
-	u32 access_rights = VXGE_HW_DEVICE_ACCESS_RIGHT_VPATH;
-
-	switch (host_type) {
-	case VXGE_HW_NO_MR_NO_SR_NORMAL_FUNCTION:
-		if (func_id == 0) {
-			access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
-					VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
-		}
-		break;
-	case VXGE_HW_MR_NO_SR_VH0_BASE_FUNCTION:
-		access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
-				VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
-		break;
-	case VXGE_HW_NO_MR_SR_VH0_FUNCTION0:
-		access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
-				VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
-		break;
-	case VXGE_HW_NO_MR_SR_VH0_VIRTUAL_FUNCTION:
-	case VXGE_HW_SR_VH_VIRTUAL_FUNCTION:
-	case VXGE_HW_MR_SR_VH0_INVALID_CONFIG:
-		break;
-	case VXGE_HW_SR_VH_FUNCTION0:
-	case VXGE_HW_VH_NORMAL_FUNCTION:
-		access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
-		break;
-	}
-
-	return access_rights;
-}
-/*
- * __vxge_hw_device_is_privilaged
- * This routine checks if the device function is privilaged or not
- */
-
-enum vxge_hw_status
-__vxge_hw_device_is_privilaged(u32 host_type, u32 func_id)
-{
-	if (__vxge_hw_device_access_rights_get(host_type,
-		func_id) &
-		VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)
-		return VXGE_HW_OK;
-	else
-		return VXGE_HW_ERR_PRIVILEGED_OPERATION;
-}
-
-/*
- * __vxge_hw_vpath_func_id_get - Get the function id of the vpath.
- * Returns the function number of the vpath.
- */
-static u32
-__vxge_hw_vpath_func_id_get(struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg)
-{
-	u64 val64;
-
-	val64 = readq(&vpmgmt_reg->vpath_to_func_map_cfg1);
-
-	return
-	 (u32)VXGE_HW_VPATH_TO_FUNC_MAP_CFG1_GET_VPATH_TO_FUNC_MAP_CFG1(val64);
-}
-
-/*
- * __vxge_hw_device_host_info_get
- * This routine returns the host type assignments
- */
-static void __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev)
-{
-	u64 val64;
-	u32 i;
-
-	val64 = readq(&hldev->common_reg->host_type_assignments);
-
-	hldev->host_type =
-	   (u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64);
-
-	hldev->vpath_assignments = readq(&hldev->common_reg->vpath_assignments);
-
-	for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
-		if (!(hldev->vpath_assignments & vxge_mBIT(i)))
-			continue;
-
-		hldev->func_id =
-			__vxge_hw_vpath_func_id_get(hldev->vpmgmt_reg[i]);
-
-		hldev->access_rights = __vxge_hw_device_access_rights_get(
-			hldev->host_type, hldev->func_id);
-
-		hldev->virtual_paths[i].vp_open = VXGE_HW_VP_NOT_OPEN;
-		hldev->virtual_paths[i].vp_reg = hldev->vpath_reg[i];
-
-		hldev->first_vp_id = i;
-		break;
-	}
-}
-
-/*
- * __vxge_hw_verify_pci_e_info - Validate the pci-e link parameters such as
- * link width and signalling rate.
- */
-static enum vxge_hw_status
-__vxge_hw_verify_pci_e_info(struct __vxge_hw_device *hldev)
-{
-	struct pci_dev *dev = hldev->pdev;
-	u16 lnk;
-
-	/* Get the negotiated link width and speed from PCI config space */
-	pcie_capability_read_word(dev, PCI_EXP_LNKSTA, &lnk);
-
-	if ((lnk & PCI_EXP_LNKSTA_CLS) != 1)
-		return VXGE_HW_ERR_INVALID_PCI_INFO;
-
-	switch ((lnk & PCI_EXP_LNKSTA_NLW) >> 4) {
-	case PCIE_LNK_WIDTH_RESRV:
-	case PCIE_LNK_X1:
-	case PCIE_LNK_X2:
-	case PCIE_LNK_X4:
-	case PCIE_LNK_X8:
-		break;
-	default:
-		return VXGE_HW_ERR_INVALID_PCI_INFO;
-	}
-
-	return VXGE_HW_OK;
-}
-
-/*
- * __vxge_hw_device_initialize
- * Initialize Titan-V hardware.
- */
-static enum vxge_hw_status
-__vxge_hw_device_initialize(struct __vxge_hw_device *hldev)
-{
-	enum vxge_hw_status status = VXGE_HW_OK;
-
-	if (VXGE_HW_OK == __vxge_hw_device_is_privilaged(hldev->host_type,
-				hldev->func_id)) {
-		/* Validate the pci-e link width and speed */
-		status = __vxge_hw_verify_pci_e_info(hldev);
-		if (status != VXGE_HW_OK)
-			goto exit;
-	}
-
-exit:
-	return status;
-}
-
-/*
- * __vxge_hw_vpath_fw_ver_get - Get the fw version
- * Returns FW Version
- */
-static enum vxge_hw_status
-__vxge_hw_vpath_fw_ver_get(struct __vxge_hw_virtualpath *vpath,
-			   struct vxge_hw_device_hw_info *hw_info)
-{
-	struct vxge_hw_device_version *fw_version = &hw_info->fw_version;
-	struct vxge_hw_device_date *fw_date = &hw_info->fw_date;
-	struct vxge_hw_device_version *flash_version = &hw_info->flash_version;
-	struct vxge_hw_device_date *flash_date = &hw_info->flash_date;
-	u64 data0 = 0, data1 = 0, steer_ctrl = 0;
-	enum vxge_hw_status status;
-
-	status = vxge_hw_vpath_fw_api(vpath,
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY,
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
-			0, &data0, &data1, &steer_ctrl);
-	if (status != VXGE_HW_OK)
-		goto exit;
-
-	fw_date->day =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_DAY(data0);
-	fw_date->month =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MONTH(data0);
-	fw_date->year =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_YEAR(data0);
-
-	snprintf(fw_date->date, VXGE_HW_FW_STRLEN, "%2.2d/%2.2d/%4.4d",
-		 fw_date->month, fw_date->day, fw_date->year);
-
-	fw_version->major =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MAJOR(data0);
-	fw_version->minor =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MINOR(data0);
-	fw_version->build =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_BUILD(data0);
-
-	snprintf(fw_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
-		 fw_version->major, fw_version->minor, fw_version->build);
-
-	flash_date->day =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_DAY(data1);
-	flash_date->month =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MONTH(data1);
-	flash_date->year =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_YEAR(data1);
-
-	snprintf(flash_date->date, VXGE_HW_FW_STRLEN, "%2.2d/%2.2d/%4.4d",
-		 flash_date->month, flash_date->day, flash_date->year);
-
-	flash_version->major =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MAJOR(data1);
-	flash_version->minor =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MINOR(data1);
-	flash_version->build =
-	    (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_BUILD(data1);
-
-	snprintf(flash_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
-		 flash_version->major, flash_version->minor,
-		 flash_version->build);
-
-exit:
-	return status;
-}
-
-/*
- * __vxge_hw_vpath_card_info_get - Get the serial numbers,
- * part number and product description.
- */
-static enum vxge_hw_status
-__vxge_hw_vpath_card_info_get(struct __vxge_hw_virtualpath *vpath,
-			      struct vxge_hw_device_hw_info *hw_info)
-{
-	__be64 *serial_number = (void *)hw_info->serial_number;
-	__be64 *product_desc = (void *)hw_info->product_desc;
-	__be64 *part_number = (void *)hw_info->part_number;
-	enum vxge_hw_status status;
-	u64 data0, data1 = 0, steer_ctrl = 0;
-	u32 i, j = 0;
-
-	data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_SERIAL_NUMBER;
-
-	status = vxge_hw_vpath_fw_api(vpath,
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY,
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
-			0, &data0, &data1, &steer_ctrl);
-	if (status != VXGE_HW_OK)
-		return status;
-
-	serial_number[0] = cpu_to_be64(data0);
-	serial_number[1] = cpu_to_be64(data1);
-
-	data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PART_NUMBER