vxge: serialize access to steering control register

It is possible for multiple callers to access the firmware interface for
the same vpath simultaneously, resulting in uncertain output.  Add locks
to serialize access.  Also, make functions only accessed locally static,
thus requiring some movement of code blocks.
Signed-off-by: Jon Mason <jon.mason@exar.com>
Signed-off-by: Ram Vepa <ram.vepa@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/vxge/vxge-config.c

@@ -19,6 +19,7 @@
 
 #include "vxge-traffic.h"
 #include "vxge-config.h"
+#include "vxge-main.h"
 
 static enum vxge_hw_status
 __vxge_hw_fifo_create(
@@ -103,12 +104,6 @@ __vxge_hw_device_id_get(struct __vxge_hw_device *hldev);
 static void
 __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev);
 
-static enum vxge_hw_status
-__vxge_hw_vpath_card_info_get(
-	u32 vp_id,
-	struct vxge_hw_vpath_reg __iomem *vpath_reg,
-	struct vxge_hw_device_hw_info *hw_info);
-
 static enum vxge_hw_status
 __vxge_hw_device_initialize(struct __vxge_hw_device *hldev);
 
@@ -153,17 +148,6 @@ vxge_hw_vpath_stats_enable(struct __vxge_hw_vpath_handle *vpath_handle);
 static enum vxge_hw_status
 __vxge_hw_legacy_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg);
 
-static u64
-__vxge_hw_vpath_pci_func_mode_get(u32  vp_id,
-				  struct vxge_hw_vpath_reg __iomem *vpath_reg);
-
-static u32
-__vxge_hw_vpath_func_id_get(u32 vp_id, struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg);
-
-static enum vxge_hw_status
-__vxge_hw_vpath_addr_get(u32 vp_id, struct vxge_hw_vpath_reg __iomem *vpath_reg,
-			 u8 (macaddr)[ETH_ALEN], u8 (macaddr_mask)[ETH_ALEN]);
-
 static enum vxge_hw_status
 __vxge_hw_vpath_reset_check(struct __vxge_hw_virtualpath *vpath);
 
@@ -171,9 +155,6 @@ __vxge_hw_vpath_reset_check(struct __vxge_hw_virtualpath *vpath);
 static enum vxge_hw_status
 __vxge_hw_vpath_sw_reset(struct __vxge_hw_device *devh, u32 vp_id);
 
-static enum vxge_hw_status
-__vxge_hw_vpath_fw_ver_get(u32 vp_id, struct vxge_hw_vpath_reg __iomem *vpath_reg,
-			   struct vxge_hw_device_hw_info *hw_info);
 
 static enum vxge_hw_status
 __vxge_hw_vpath_mac_configure(struct __vxge_hw_device *devh, u32 vp_id);
@@ -275,6 +256,72 @@ void vxge_hw_device_wait_receive_idle(struct __vxge_hw_device *hldev)
 	}
 }
 
+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;
+	enum vxge_hw_status status;
+	u64 val64;
+	u32 retry = 0, max_retry = 100;
+
+	vp_reg = vpath->vp_reg;
+
+	if (vpath->vp_open) {
+		max_retry = 3;
+		spin_lock(&vpath->lock);
+	}
+
+	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 proccess 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;
+}
+
 /*
  * __vxge_hw_channel_allocate - Allocate memory for channel
  * This function allocates required memory for the channel and various arrays
@@ -649,11 +696,26 @@ __vxge_hw_device_is_privilaged(u32 host_type, u32 func_id)
 		return VXGE_HW_ERR_PRIVILAGED_OPEARATION;
 }
 
+/*
+ * __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
  */
-void __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev)
+static void __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev)
 {
 	u64 val64;
 	u32 i;
@@ -666,16 +728,18 @@ void __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev)
 	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(i, hldev->vpmgmt_reg[i]);
+			__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;
 	}
@@ -732,6 +796,192 @@ enum vxge_hw_status __vxge_hw_device_initialize(struct __vxge_hw_device *hldev)
 	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, 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)
+{
+	enum vxge_hw_status status;
+	u64 data0, data1 = 0, steer_ctrl = 0;
+	u8 *serial_number = hw_info->serial_number;
+	u8 *part_number = hw_info->part_number;
+	u8 *product_desc = hw_info->product_desc;
+	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;
+
+	((u64 *)serial_number)[0] = be64_to_cpu(data0);
+	((u64 *)serial_number)[1] = be64_to_cpu(data1);
+
+	data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PART_NUMBER;
+	data1 = steer_ctrl = 0;
+
+	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;
+
+	((u64 *)part_number)[0] = be64_to_cpu(data0);
+	((u64 *)part_number)[1] = be64_to_cpu(data1);
+
+	for (i = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_0;
+	     i <= VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_3; i++) {
+		data0 = i;
+		data1 = steer_ctrl = 0;
+
+		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;
+
+		((u64 *)product_desc)[j++] = be64_to_cpu(data0);
+		((u64 *)product_desc)[j++] = be64_to_cpu(data1);
+	}
+
+	return status;
+}
+
+/*
+ * __vxge_hw_vpath_pci_func_mode_get - Get the pci mode
+ * Returns pci function mode
+ */
+static u64
+__vxge_hw_vpath_pci_func_mode_get(struct __vxge_hw_virtualpath *vpath)
+{
+	u64 data0, data1 = 0, steer_ctrl = 0;
+	enum vxge_hw_status status;
+
+	data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PCI_MODE;
+
+	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);
+
+	return data0;
+}
+
+/*
+ * __vxge_hw_vpath_addr_get - Get the hw address entry for this vpath
+ *               from MAC address table.
+ */
+static enum vxge_hw_status
+__vxge_hw_vpath_addr_get(struct __vxge_hw_virtualpath *vpath,
+			 u8 *macaddr, u8 *macaddr_mask)
+{
+	u64 action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_FIRST_ENTRY,
+	    data0 = 0, data1 = 0, steer_ctrl = 0;
+	enum vxge_hw_status status;
+	int i;
+
+	do {
+		status = vxge_hw_vpath_fw_api(vpath, action,
+			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA,
+			0, &data0, &data1, &steer_ctrl);
+		if (status != VXGE_HW_OK)
+			goto exit;
+
+		data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data0);
+		data1 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK(
+									data1);
+
+		for (i = ETH_ALEN; i > 0; i--) {
+			macaddr[i - 1] = (u8) (data0 & 0xFF);
+			data0 >>= 8;
+
+			macaddr_mask[i - 1] = (u8) (data1 & 0xFF);
+			data1 >>= 8;
+		}
+
+		action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_NEXT_ENTRY;
+		data0 = 0, data1 = 0, steer_ctrl = 0;
+
+	} while (!is_valid_ether_addr(macaddr));
+exit:
+	return status;
+}
+
 /**
  * vxge_hw_device_hw_info_get - Get the hw information
  * Returns the vpath mask that has the bits set for each vpath allocated
@@ -747,9 +997,9 @@ vxge_hw_device_hw_info_get(void __iomem *bar0,
 	struct vxge_hw_toc_reg __iomem *toc;
 	struct vxge_hw_mrpcim_reg __iomem *mrpcim_reg;
 	struct vxge_hw_common_reg __iomem *common_reg;
-	struct vxge_hw_vpath_reg __iomem *vpath_reg;
 	struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg;
 	enum vxge_hw_status status;
+	struct __vxge_hw_virtualpath vpath;
 
 	memset(hw_info, 0, sizeof(struct vxge_hw_device_hw_info));
 
@@ -784,7 +1034,7 @@ vxge_hw_device_hw_info_get(void __iomem *bar0,
 		vpmgmt_reg = (struct vxge_hw_vpmgmt_reg __iomem *)
 				(bar0 + val64);
 
-		hw_info->func_id = __vxge_hw_vpath_func_id_get(i, vpmgmt_reg);
+		hw_info->func_id = __vxge_hw_vpath_func_id_get(vpmgmt_reg);
 		if (__vxge_hw_device_access_rights_get(hw_info->host_type,
 			hw_info->func_id) &
 			VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM) {
@@ -800,16 +1050,18 @@ vxge_hw_device_hw_info_get(void __iomem *bar0,
 
 		val64 = readq(&toc->toc_vpath_pointer[i]);
 
-		vpath_reg = (struct vxge_hw_vpath_reg __iomem *)(bar0 + val64);
+		vpath.vp_reg = (struct vxge_hw_vpath_reg __iomem *)
+			       (bar0 + val64);
+		vpath.vp_open = 0;
 
 		hw_info->function_mode =
-			__vxge_hw_vpath_pci_func_mode_get(i, vpath_reg);
+			__vxge_hw_vpath_pci_func_mode_get(&vpath);
 
-		status = __vxge_hw_vpath_fw_ver_get(i, vpath_reg, hw_info);
+		status = __vxge_hw_vpath_fw_ver_get(&vpath, hw_info);
 		if (status != VXGE_HW_OK)
 			goto exit;
 
-		status = __vxge_hw_vpath_card_info_get(i, vpath_reg, hw_info);
+		status = __vxge_hw_vpath_card_info_get(&vpath, hw_info);
 		if (status != VXGE_HW_OK)
 			goto exit;
 
@@ -817,14 +1069,15 @@ vxge_hw_device_hw_info_get(void __iomem *bar0,
 	}
 
 	for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
-
 		if (!((hw_info->vpath_mask) & vxge_mBIT(i)))
 			continue;
 
 		val64 = readq(&toc->toc_vpath_pointer[i]);
-		vpath_reg = (struct vxge_hw_vpath_reg __iomem *)(bar0 + val64);
+		vpath.vp_reg = (struct vxge_hw_vpath_reg __iomem *)
+			       (bar0 + val64);
+		vpath.vp_open = 0;
 
-		status =  __vxge_hw_vpath_addr_get(i, vpath_reg,
+		status =  __vxge_hw_vpath_addr_get(&vpath,
 				hw_info->mac_addrs[i],
 				hw_info->mac_addr_masks[i]);
 		if (status != VXGE_HW_OK)
@@ -896,7 +1149,6 @@ vxge_hw_device_initialize(
 	nblocks++;
 
 	for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
-
 		if (!(hldev->vpath_assignments & vxge_mBIT(i)))
 			continue;
 
@@ -921,7 +1173,6 @@ vxge_hw_device_initialize(
 	}
 
 	status = __vxge_hw_device_initialize(hldev);
-
 	if (status != VXGE_HW_OK) {
 		vxge_hw_device_terminate(hldev);
 		goto exit;
@@ -958,7 +1209,6 @@ vxge_hw_device_stats_get(struct __vxge_hw_device *hldev,
 	enum vxge_hw_status status = VXGE_HW_OK;
 
 	for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
-
 		if (!(hldev->vpaths_deployed & vxge_mBIT(i)) ||
 			(hldev->virtual_paths[i].vp_open ==
 				VXGE_HW_VP_NOT_OPEN))
@@ -2755,297 +3005,6 @@ __vxge_hw_vpath_pci_read(struct __vxge_hw_virtualpath *vpath,
 	return status;
 }
 
-/*
- * __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(u32 vp_id,
-	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_read_rts_ds - Program RTS steering critieria
- */
-static inline void
-__vxge_hw_read_rts_ds(struct vxge_hw_vpath_reg __iomem *vpath_reg,
-		      u64 dta_struct_sel)
-{
-	writeq(0, &vpath_reg->rts_access_steer_ctrl);
-	wmb();
-	writeq(dta_struct_sel, &vpath_reg->rts_access_steer_data0);
-	writeq(0, &vpath_reg->rts_access_steer_data1);
-	wmb();
-}
-
-
-/*
- * __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(
-	u32 vp_id,
-	struct vxge_hw_vpath_reg __iomem *vpath_reg,
-	struct vxge_hw_device_hw_info *hw_info)
-{
-	u32 i, j;
-	u64 val64;
-	u64 data1 = 0ULL;
-	u64 data2 = 0ULL;
-	enum vxge_hw_status status = VXGE_HW_OK;
-	u8 *serial_number = hw_info->serial_number;
-	u8 *part_number = hw_info->part_number;
-	u8 *product_desc = hw_info->product_desc;
-
-	__vxge_hw_read_rts_ds(vpath_reg,
-		VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_SERIAL_NUMBER);
-
-	val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
-
-	status = __vxge_hw_pio_mem_write64(val64,
-				&vpath_reg->rts_access_steer_ctrl,
-				VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
-				VXGE_HW_DEF_DEVICE_POLL_MILLIS);
-
-	if (status != VXGE_HW_OK)
-		return status;
-
-	val64 = readq(&vpath_reg->rts_access_steer_ctrl);
-
-	if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
-		data1 = readq(&vpath_reg->rts_access_steer_data0);
-		((u64 *)serial_number)[0] = be64_to_cpu(data1);
-
-		data2 = readq(&vpath_reg->rts_access_steer_data1);
-		((u64 *)serial_number)[1] = be64_to_cpu(data2);
-		status = VXGE_HW_OK;
-	} else
-		*serial_number = 0;
-
-	__vxge_hw_read_rts_ds(vpath_reg,
-			VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PART_NUMBER);
-
-	val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
-
-	status = __vxge_hw_pio_mem_write64(val64,
-				&vpath_reg->rts_access_steer_ctrl,
-				VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
-				VXGE_HW_DEF_DEVICE_POLL_MILLIS);
-
-	if (status != VXGE_HW_OK)
-		return status;
-
-	val64 = readq(&vpath_reg->rts_access_steer_ctrl);
-
-	if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
-
-		data1 = readq(&vpath_reg->rts_access_steer_data0);
-		((u64 *)part_number)[0] = be64_to_cpu(data1);
-
-		data2 = readq(&vpath_reg->rts_access_steer_data1);
-		((u64 *)part_number)[1] = be64_to_cpu(data2);
-
-		status = VXGE_HW_OK;
-
-	} else
-		*part_number = 0;
-
-	j = 0;
-
-	for (i = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_0;
-	     i <= VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_3; i++) {
-
-		__vxge_hw_read_rts_ds(vpath_reg, i);
-
-		val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
-
-		status = __vxge_hw_pio_mem_write64(val64,
-				&vpath_reg->rts_access_steer_ctrl,
-				VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
-				VXGE_HW_DEF_DEVICE_POLL_MILLIS);
-
-		if (status != VXGE_HW_OK)
-			return status;
-
-		val64 = readq(&vpath_reg->rts_access_steer_ctrl);
-
-		if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
-
-			data1 = readq(&vpath_reg->rts_access_steer_data0);
-			((u64 *)product_desc)[j++] = be64_to_cpu(data1);
-
-			data2 = readq(&vpath_reg->rts_access_steer_data1);
-			((u64 *)product_desc)[j++] = be64_to_cpu(data2);
-
-			status = VXGE_HW_OK;
-		} else
-			*product_desc = 0;
-	}
-
-	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(
-	u32 vp_id,
-	struct vxge_hw_vpath_reg __iomem *vpath_reg,
-	struct vxge_hw_device_hw_info *hw_info)
-{
-	u64 val64;
-	u64 data1 = 0ULL;
-	u64 data2 = 0ULL;
-	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;
-	enum vxge_hw_status status = VXGE_HW_OK;
-
-	val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
-
-	status = __vxge_hw_pio_mem_write64(val64,
-				&vpath_reg->rts_access_steer_ctrl,
-				VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
-				VXGE_HW_DEF_DEVICE_POLL_MILLIS);
-
-	if (status != VXGE_HW_OK)
-		goto exit;
-
-	val64 = readq(&vpath_reg->rts_access_steer_ctrl);
-
-	if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
-
-		data1 = readq(&vpath_reg->rts_access_steer_data0);
-		data2 = readq(&vpath_reg->rts_access_steer_data1);
-
-		fw_date->day =
-			(u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_DAY(
-						data1);
-		fw_date->month =
-			(u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MONTH(
-						data1);
-		fw_date->year =
-			(u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_YEAR(
-						data1);
-
-		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(data1);
-		fw_version->minor =
-		    (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MINOR(data1);
-		fw_version->build =
-		    (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_BUILD(data1);
-
-		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(data2);
-		flash_date->month =
-		 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MONTH(data2);
-		flash_date->year =
-		 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_YEAR(data2);
-
-		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(data2);
-		flash_version->minor =
-		 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MINOR(data2);
-		flash_version->build =
-		 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_BUILD(data2);
-
-		snprintf(flash_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
-			flash_version->major, flash_version->minor,
-			flash_version->build);
-
-		status = VXGE_HW_OK;
-
-	} else
-		status = VXGE_HW_FAIL;
-exit:
-	return status;
-}
-
-/*
- * __vxge_hw_vpath_pci_func_mode_get - Get the pci mode
- * Returns pci function mode
- */
-static u64
-__vxge_hw_vpath_pci_func_mode_get(
-	u32  vp_id,
-	struct vxge_hw_vpath_reg __iomem *vpath_reg)
-{
-	u64 val64;
-	u64 data1 = 0ULL;
-	enum vxge_hw_status status = VXGE_HW_OK;
-
-	__vxge_hw_read_rts_ds(vpath_reg,
-		VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PCI_MODE);
-
-	val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
-
-	status = __vxge_hw_pio_mem_write64(val64,
-				&vpath_reg->rts_access_steer_ctrl,
-				VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
-				VXGE_HW_DEF_DEVICE_POLL_MILLIS);
-
-	if (status != VXGE_HW_OK)
-		goto exit;
-
-	val64 = readq(&vpath_reg->rts_access_steer_ctrl);
-
-	if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
-		data1 = readq(&vpath_reg->rts_access_steer_data0);
-		status = VXGE_HW_OK;
-	} else {
-		data1 = 0;
-		status = VXGE_HW_FAIL;
-	}
-exit:
-	return data1;
-}
-
 /**
  * vxge_hw_device_flick_link_led - Flick (blink) link LED.
  * @hldev: HW device.
@@ -3054,37 +3013,24 @@ __vxge_hw_vpath_pci_func_mode_get(
  * Flicker the link LED.
  */
 enum vxge_hw_status
-vxge_hw_device_flick_link_led(struct __vxge_hw_device *hldev,
-			       u64 on_off)
+vxge_hw_device_flick_link_led(struct __vxge_hw_device *hldev, u64 on_off)
 {
-	u64 val64;
-	enum vxge_hw_status status = VXGE_HW_OK;
-	struct vxge_hw_vpath_reg __iomem *vp_reg;
+	struct __vxge_hw_virtualpath *vpath;
+	u64 data0, data1 = 0, steer_ctrl = 0;
+	enum vxge_hw_status status;
 
 	if (hldev == NULL) {
 		status = VXGE_HW_ERR_INVALID_DEVICE;
 		goto exit;
 	}
 
-	vp_reg = hldev->vpath_reg[hldev->first_vp_id];
-
-	writeq(0, &vp_reg->rts_access_steer_ctrl);
-	wmb();
-	writeq(on_off, &vp_reg->rts_access_steer_data0);
-	writeq(0, &vp_reg->rts_access_steer_data1);
-	wmb();
-
-	val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LED_CONTROL) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
-			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
+	vpath = &hldev->virtual_paths[hldev->first_vp_id];
 
-	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);
+	data0 = on_off;
+	status = vxge_hw_vpath_fw_api(vpath,
+			VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LED_CONTROL,
+			VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
+			0, &data0, &data1, &steer_ctrl);
 exit:
 	return status;
 }
@@ -3093,29 +3039,18 @@ vxge_hw_device_flick_link_led(struct __vxge_hw_device *hldev,
  * __vxge_hw_vpath_rts_table_get - Get the entries from RTS access tables
  */
 enum vxge_hw_status
-__vxge_hw_vpath_rts_table_get(
-	struct __vxge_hw_vpath_handle *vp,
-	u32 action, u32 rts_table, u32 offset, u64 *data1, u64 *data2)
+__vxge_hw_vpath_rts_table_get(struct __vxge_hw_vpath_handle *vp,
+			      u32 action, u32 rts_table, u32 offset,
+			      u64 *data0, u64 *data1)
 {
-	u64 val64;
-	struct __vxge_hw_virtualpath *vpath;
-	struct vxge_hw_vpath_reg __iomem *vp_reg;
-
-	enum vxge_hw_status status = VXGE_HW_OK;
+	enum vxge_hw_status status;
+	u64 steer_ctrl = 0;
 
 	if (vp == NULL) {
 		status = VXGE_HW_ERR_INVALID_HANDLE;
 		goto exit;
 	}
 
-	vpath = vp->vpath;
-	vp_reg = vpath->vp_reg;
-
-	val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(action) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(rts_table) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset);
-
 	if ((rts_table ==
 	     VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT) ||
 	    (rts_table ==
@@ -3124,32 +3059,18 @@ __vxge_hw_vpath_rts_table_get(
 	     VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MASK) ||
 	    (rts_table ==
 	     VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_KEY)) {
-		val64 = val64 |	VXGE_HW_RTS_ACCESS_STEER_CTRL_TABLE_SEL;
+		steer_ctrl = VXGE_HW_RTS_ACCESS_STEER_CTRL_TABLE_SEL;
 	}
 
-	status = __vxge_hw_pio_mem_write64(val64,
-				&vp_reg->rts_access_steer_ctrl,
-				VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
-				vpath->hldev->config.device_poll_millis);
-
+	status = vxge_hw_vpath_fw_api(vp->vpath, action, rts_table, offset,
+				      data0, data1, &steer_ctrl);
 	if (status != VXGE_HW_OK)
 		goto exit;
 
-	val64 = readq(&vp_reg->rts_access_steer_ctrl);
-
-	if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
-
-		*data1 = readq(&vp_reg->rts_access_steer_data0);
-
-		if ((rts_table ==
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) ||
-		(rts_table ==
-		VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT)) {
-			*data2 = readq(&vp_reg->rts_access_steer_data1);
-		}
-		status = VXGE_HW_OK;
-	} else
-		status = VXGE_HW_FAIL;
+	if ((rts_table != VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) ||
+	    (rts_table !=
+	     VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT))
+		*data1 = 0;
 exit:
 	return status;
 }
@@ -3158,107 +3079,27 @@ __vxge_hw_vpath_rts_table_get(
  * __vxge_hw_vpath_rts_table_set - Set the entries of RTS access tables
  */
 enum vxge_hw_status
-__vxge_hw_vpath_rts_table_set(
-	struct __vxge_hw_vpath_handle *vp, u32 action, u32 rts_table,
-	u32 offset, u64 data1, u64 data2)
+__vxge_hw_vpath_rts_table_set(struct __vxge_hw_vpath_handle *vp, u32 action,
+			      u32 rts_table, u32 offset, u64 steer_data0,
+			      u64 steer_data1)
 {
-	u64 val64;
-	struct __vxge_hw_virtualpath *vpath;
-	enum vxge_hw_status status = VXGE_HW_OK;
-	struct vxge_hw_vpath_reg __iomem *vp_reg;
+	u64 data0, data1 = 0, steer_ctrl = 0;
+	enum vxge_hw_status status;
 
 	if (vp == NULL) {
 		status = VXGE_HW_ERR_INVALID_HANDLE;
 		goto exit;
 	}
 
-	vpath = vp->vpath;
-	vp_reg = vpath->vp_reg;
-
-	writeq(data1, &vp_reg->rts_access_steer_data0);
-	wmb();
+	data0 = steer_data0;
 
 	if ((rts_table == VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) ||
 	    (rts_table ==
-		VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT)) {
-		writeq(data2, &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(rts_table) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset);
-
-	status = __vxge_hw_pio_mem_write64(val64,
-				&vp_reg->rts_access_steer_ctrl,
-				VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
-				vpath->hldev->config.device_poll_millis);
+	     VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT))
+		data1 = steer_data1;
 
-	if (status != VXGE_HW_OK)
-		goto exit;
-
-	val64 = readq(&vp_reg->rts_access_steer_ctrl);
-
-	if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS)
-		status = VXGE_HW_OK;
-	else
-		status = VXGE_HW_FAIL;
-exit:
-	return status;
-}
-
-/*
- * __vxge_hw_vpath_addr_get - Get the hw address entry for this vpath
- *               from MAC address table.
- */
-static enum vxge_hw_status
-__vxge_hw_vpath_addr_get(
-	u32 vp_id, struct vxge_hw_vpath_reg __iomem *vpath_reg,
-	u8 (macaddr)[ETH_ALEN], u8 (macaddr_mask)[ETH_ALEN])
-{
-	u32 i;
-	u64 val64;
-	u64 data1 = 0ULL;
-	u64 data2 = 0ULL;
-	enum vxge_hw_status status = VXGE_HW_OK;
-
-	val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_FIRST_ENTRY) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
-		VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
-
-	status = __vxge_hw_pio_mem_write64(val64,
-				&vpath_reg->rts_access_steer_ctrl,
-				VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
-				VXGE_HW_DEF_DEVICE_POLL_MILLIS);
-
-	if (status != VXGE_HW_OK)
-		goto exit;
-
-	val64 = readq(&vpath_reg->rts_access_steer_ctrl);
-
-	if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
-
-		data1 = readq(&vpath_reg->rts_access_steer_data0);
-		data2 = readq(&vpath_reg->rts_access_steer_data1);
-
-		data1 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data1);
-		data2 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK(
-							data2);
-
-		for (i = ETH_ALEN; i > 0; i--) {
-			macaddr[i-1] = (u8)(data1 & 0xFF);
-			data1 >>= 8;
-
-			macaddr_mask[i-1] = (u8)(data2 & 0xFF);
-			data2 >>= 8;
-		}
-		status = VXGE_HW_OK;
-	} else
-		status = VXGE_HW_FAIL;
+	status = vxge_hw_vpath_fw_api(vp->vpath, action, rts_table, offset,
+				      &data0, &data1, &steer_ctrl);
 exit:
 	return status;
 }
@@ -4199,6 +4040,7 @@ __vxge_hw_vp_initialize(struct __vxge_hw_device *hldev, u32 vp_id,
 
 	vpath = &hldev->virtual_paths[vp_id];
 
+	spin_lock_init(&hldev->virtual_paths[vp_id].lock);
 	vpath->vp_id = vp_id;
 	vpath->vp_open = VXGE_HW_VP_OPEN;
 	vpath->hldev = hldev;
@@ -4209,14 +4051,12 @@ __vxge_hw_vp_initialize(struct __vxge_hw_device *hldev, u32 vp_id,
 	__vxge_hw_vpath_reset(hldev, vp_id);
 
 	status = __vxge_hw_vpath_reset_check(vpath);
-
 	if (status != VXGE_HW_OK) {
 		memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
 		goto exit;
 	}
 
 	status = __vxge_hw_vpath_mgmt_read(hldev, vpath);
-
 	if (status != VXGE_HW_OK) {
 		memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
 		goto exit;
@@ -4230,7 +4070,6 @@ __vxge_hw_vp_initialize(struct __vxge_hw_device *hldev, u32 vp_id,
 		hldev->tim_int_mask1, vp_id);
 
 	status = __vxge_hw_vpath_initialize(hldev, vp_id);
-
 	if (status != VXGE_HW_OK)
 		__vxge_hw_vp_terminate(hldev, vp_id);
 exit:
@@ -4496,7 +4335,9 @@ enum vxge_hw_status vxge_hw_vpath_close(struct __vxge_hw_vpath_handle *vp)
 
 	__vxge_hw_vp_terminate(devh, vp_id);
 
+	spin_lock(&vpath->lock);
 	vpath->vp_open = VXGE_HW_VP_NOT_OPEN;
+	spin_unlock(&vpath->lock);
 
 vpath_close_exit:
 	return status;

drivers/net/vxge/vxge-config.h

@@ -641,6 +641,7 @@ struct __vxge_hw_virtualpath {
 	struct vxge_hw_vpath_stats_hw_info	*hw_stats;
 	struct vxge_hw_vpath_stats_hw_info	*hw_stats_sav;
 	struct vxge_hw_vpath_stats_sw_info	*sw_stats;
+	spinlock_t lock;
 };
 
 /*