Commit f5b26503 authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'xgbe-next' 



Tom Lendacky says:

====================
amd-xgbe: AMD 10Gb Ethernet driver updates

The following series fixes some bugs and provides new/changed support
in the driver.

- Make all the defines in the xgbe.h file unique by prefixing them with
  XGBE_ if they are not currently using the prefix.
- VLAN CTAGs are supplied in context descriptors. Tell the hardware to
  look in the Tx context descriptor, and not a register, for the VLAN CTAG
  to be inserted in the packet.
- The hardware will indicate a VLAN packet has been received even if VLAN
  CTAG stripping is currently disabled.  Only indicate that a VLAN CTAG
  has been stripped for the current packet if stripping is enabled.
- Add support for VLAN filtering
- Modify destination address filtering to use the hardware hash tables
- Eliminate a checkpatch warning by replacing sscanf with kstrtouint

This patch series is based on net-next.
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 9b8d90b9 66f95c35

drivers/net/ethernet/amd/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -182,6 +182,8 @@ config AMD_XGBE 
	depends on OF_NET

	select PHYLIB

	select AMD_XGBE_PHY

	select BITREVERSE

	select CRC32

	---help---

	  This driver supports the AMD 10GbE Ethernet device found on an

	  AMD SoC.

drivers/net/ethernet/amd/xgbe/xgbe-common.h

+19 −7
Original line number Diff line number Diff line
@@ -276,13 +276,6 @@ 
#define MAC_PFR				0x0008

#define MAC_WTR				0x000c

#define MAC_HTR0			0x0010

#define MAC_HTR1			0x0014

#define MAC_HTR2			0x0018

#define MAC_HTR3			0x001c

#define MAC_HTR4			0x0020

#define MAC_HTR5			0x0024

#define MAC_HTR6			0x0028

#define MAC_HTR7			0x002c

#define MAC_VLANTR			0x0050

#define MAC_VLANHTR			0x0058

#define MAC_VLANIR			0x0060
@@ -315,6 +308,7 @@ 


#define MAC_QTFCR_INC			4

#define MAC_MACA_INC			4

#define MAC_HTR_INC			4



/* MAC register entry bit positions and sizes */

#define MAC_HWF0R_ADDMACADRSEL_INDEX	18
@@ -387,12 +381,16 @@ 
#define MAC_MACA1HR_AE_WIDTH		1

#define MAC_PFR_HMC_INDEX		2

#define MAC_PFR_HMC_WIDTH		1

#define MAC_PFR_HPF_INDEX		10

#define MAC_PFR_HPF_WIDTH		1

#define MAC_PFR_HUC_INDEX		1

#define MAC_PFR_HUC_WIDTH		1

#define MAC_PFR_PM_INDEX		4

#define MAC_PFR_PM_WIDTH		1

#define MAC_PFR_PR_INDEX		0

#define MAC_PFR_PR_WIDTH		1

#define MAC_PFR_VTFE_INDEX		16

#define MAC_PFR_VTFE_WIDTH		1

#define MAC_PMTCSR_MGKPKTEN_INDEX	1

#define MAC_PMTCSR_MGKPKTEN_WIDTH	1

#define MAC_PMTCSR_PWRDWN_INDEX		0
@@ -427,16 +425,30 @@ 
#define MAC_TCR_SS_WIDTH		2

#define MAC_TCR_TE_INDEX		0

#define MAC_TCR_TE_WIDTH		1

#define MAC_VLANHTR_VLHT_INDEX		0

#define MAC_VLANHTR_VLHT_WIDTH		16

#define MAC_VLANIR_VLTI_INDEX		20

#define MAC_VLANIR_VLTI_WIDTH		1

#define MAC_VLANIR_CSVL_INDEX		19

#define MAC_VLANIR_CSVL_WIDTH		1

#define MAC_VLANTR_DOVLTC_INDEX		20

#define MAC_VLANTR_DOVLTC_WIDTH		1

#define MAC_VLANTR_ERSVLM_INDEX		19

#define MAC_VLANTR_ERSVLM_WIDTH		1

#define MAC_VLANTR_ESVL_INDEX		18

#define MAC_VLANTR_ESVL_WIDTH		1

#define MAC_VLANTR_ETV_INDEX		16

#define MAC_VLANTR_ETV_WIDTH		1

#define MAC_VLANTR_EVLS_INDEX		21

#define MAC_VLANTR_EVLS_WIDTH		2

#define MAC_VLANTR_EVLRXS_INDEX		24

#define MAC_VLANTR_EVLRXS_WIDTH		1

#define MAC_VLANTR_VL_INDEX		0

#define MAC_VLANTR_VL_WIDTH		16

#define MAC_VLANTR_VTHM_INDEX		25

#define MAC_VLANTR_VTHM_WIDTH		1

#define MAC_VLANTR_VTIM_INDEX		17

#define MAC_VLANTR_VTIM_WIDTH		1

#define MAC_VR_DEVID_INDEX		8

#define MAC_VR_DEVID_WIDTH		8

#define MAC_VR_SNPSVER_INDEX		0

drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c

+4 −5
Original line number Diff line number Diff line
@@ -151,7 +151,7 @@ static ssize_t xgbe_common_write(const char __user *buffer, size_t count, 
{

	char workarea[32];

	ssize_t len;

	unsigned int scan_value;

	int ret;



	if (*ppos != 0)

		return 0;
@@ -165,10 +165,9 @@ static ssize_t xgbe_common_write(const char __user *buffer, size_t count, 
		return len;



	workarea[len] = '\0';

	if (sscanf(workarea, "%x", &scan_value) == 1)

		*value = scan_value;

	else

		return -EIO;

	ret = kstrtouint(workarea, 0, value);

	if (ret)

		return ret;



	return len;

}

drivers/net/ethernet/amd/xgbe/xgbe-desc.c

+12 −11
Original line number Diff line number Diff line
@@ -131,7 +131,7 @@ static void xgbe_free_ring(struct xgbe_prv_data *pdata, 


	if (ring->rdata) {

		for (i = 0; i < ring->rdesc_count; i++) {

			rdata = GET_DESC_DATA(ring, i);

			rdata = XGBE_GET_DESC_DATA(ring, i);

			xgbe_unmap_skb(pdata, rdata);

		}
@@ -256,7 +256,7 @@ static void xgbe_wrapper_tx_descriptor_init(struct xgbe_prv_data *pdata) 
		rdesc_dma = ring->rdesc_dma;



		for (j = 0; j < ring->rdesc_count; j++) {

			rdata = GET_DESC_DATA(ring, j);

			rdata = XGBE_GET_DESC_DATA(ring, j);



			rdata->rdesc = rdesc;

			rdata->rdesc_dma = rdesc_dma;
@@ -298,7 +298,7 @@ static void xgbe_wrapper_rx_descriptor_init(struct xgbe_prv_data *pdata) 
		rdesc_dma = ring->rdesc_dma;



		for (j = 0; j < ring->rdesc_count; j++) {

			rdata = GET_DESC_DATA(ring, j);

			rdata = XGBE_GET_DESC_DATA(ring, j);



			rdata->rdesc = rdesc;

			rdata->rdesc_dma = rdesc_dma;
@@ -392,7 +392,7 @@ static int xgbe_map_tx_skb(struct xgbe_channel *channel, struct sk_buff *skb) 
	if ((tso && (packet->mss != ring->tx.cur_mss)) ||

	    (vlan && (packet->vlan_ctag != ring->tx.cur_vlan_ctag)))

		cur_index++;

	rdata = GET_DESC_DATA(ring, cur_index);

	rdata = XGBE_GET_DESC_DATA(ring, cur_index);



	if (tso) {

		DBGPR("  TSO packet\n");
@@ -413,12 +413,12 @@ static int xgbe_map_tx_skb(struct xgbe_channel *channel, struct sk_buff *skb) 
		packet->length += packet->header_len;



		cur_index++;

		rdata = GET_DESC_DATA(ring, cur_index);

		rdata = XGBE_GET_DESC_DATA(ring, cur_index);

	}



	/* Map the (remainder of the) packet */

	for (datalen = skb_headlen(skb) - offset; datalen; ) {

		len = min_t(unsigned int, datalen, TX_MAX_BUF_SIZE);

		len = min_t(unsigned int, datalen, XGBE_TX_MAX_BUF_SIZE);



		skb_dma = dma_map_single(pdata->dev, skb->data + offset, len,

					 DMA_TO_DEVICE);
@@ -437,7 +437,7 @@ static int xgbe_map_tx_skb(struct xgbe_channel *channel, struct sk_buff *skb) 
		packet->length += len;



		cur_index++;

		rdata = GET_DESC_DATA(ring, cur_index);

		rdata = XGBE_GET_DESC_DATA(ring, cur_index);

	}



	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
@@ -447,7 +447,8 @@ static int xgbe_map_tx_skb(struct xgbe_channel *channel, struct sk_buff *skb) 
		offset = 0;



		for (datalen = skb_frag_size(frag); datalen; ) {

			len = min_t(unsigned int, datalen, TX_MAX_BUF_SIZE);

			len = min_t(unsigned int, datalen,

				    XGBE_TX_MAX_BUF_SIZE);



			skb_dma = skb_frag_dma_map(pdata->dev, frag, offset,

						   len, DMA_TO_DEVICE);
@@ -468,7 +469,7 @@ static int xgbe_map_tx_skb(struct xgbe_channel *channel, struct sk_buff *skb) 
			packet->length += len;



			cur_index++;

			rdata = GET_DESC_DATA(ring, cur_index);

			rdata = XGBE_GET_DESC_DATA(ring, cur_index);

		}

	}
@@ -484,7 +485,7 @@ static int xgbe_map_tx_skb(struct xgbe_channel *channel, struct sk_buff *skb) 


err_out:

	while (start_index < cur_index) {

		rdata = GET_DESC_DATA(ring, start_index++);

		rdata = XGBE_GET_DESC_DATA(ring, start_index++);

		xgbe_unmap_skb(pdata, rdata);

	}
@@ -507,7 +508,7 @@ static void xgbe_realloc_skb(struct xgbe_channel *channel) 
	      ring->rx.realloc_index);



	for (i = 0; i < ring->dirty; i++) {

		rdata = GET_DESC_DATA(ring, ring->rx.realloc_index);

		rdata = XGBE_GET_DESC_DATA(ring, ring->rx.realloc_index);



		/* Reset rdata values */

		xgbe_unmap_skb(pdata, rdata);

drivers/net/ethernet/amd/xgbe/xgbe-dev.c

+242 −102
Original line number Diff line number Diff line
@@ -116,6 +116,8 @@ 


#include <linux/phy.h>

#include <linux/clk.h>

#include <linux/bitrev.h>

#include <linux/crc32.h>



#include "xgbe.h"

#include "xgbe-common.h"
@@ -547,24 +549,16 @@ static int xgbe_set_all_multicast_mode(struct xgbe_prv_data *pdata, 
	return 0;

}



static int xgbe_set_addn_mac_addrs(struct xgbe_prv_data *pdata,

				   unsigned int am_mode)

static void xgbe_set_mac_reg(struct xgbe_prv_data *pdata,

			     struct netdev_hw_addr *ha, unsigned int *mac_reg)

{

	struct netdev_hw_addr *ha;

	unsigned int mac_reg;

	unsigned int mac_addr_hi, mac_addr_lo;

	u8 *mac_addr;

	unsigned int i;



	XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HUC, 0);

	XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HMC, 0);



	i = 0;

	mac_reg = MAC_MACA1HR;



	netdev_for_each_uc_addr(ha, pdata->netdev) {

	mac_addr_lo = 0;

	mac_addr_hi = 0;



	if (ha) {

		mac_addr = (u8 *)&mac_addr_lo;

		mac_addr[0] = ha->addr[0];

		mac_addr[1] = ha->addr[1];
@@ -574,54 +568,93 @@ static int xgbe_set_addn_mac_addrs(struct xgbe_prv_data *pdata, 
		mac_addr[0] = ha->addr[4];

		mac_addr[1] = ha->addr[5];



		DBGPR("  adding unicast address %pM at 0x%04x\n",

		      ha->addr, mac_reg);

		DBGPR("  adding mac address %pM at 0x%04x\n", ha->addr,

		      *mac_reg);



		XGMAC_SET_BITS(mac_addr_hi, MAC_MACA1HR, AE, 1);

	}



		XGMAC_IOWRITE(pdata, mac_reg, mac_addr_hi);

		mac_reg += MAC_MACA_INC;

		XGMAC_IOWRITE(pdata, mac_reg, mac_addr_lo);

		mac_reg += MAC_MACA_INC;

	XGMAC_IOWRITE(pdata, *mac_reg, mac_addr_hi);

	*mac_reg += MAC_MACA_INC;

	XGMAC_IOWRITE(pdata, *mac_reg, mac_addr_lo);

	*mac_reg += MAC_MACA_INC;

}



		i++;

static void xgbe_set_mac_addn_addrs(struct xgbe_prv_data *pdata)

{

	struct net_device *netdev = pdata->netdev;

	struct netdev_hw_addr *ha;

	unsigned int mac_reg;

	unsigned int addn_macs;



	mac_reg = MAC_MACA1HR;

	addn_macs = pdata->hw_feat.addn_mac;



	if (netdev_uc_count(netdev) > addn_macs) {

		xgbe_set_promiscuous_mode(pdata, 1);

	} else {

		netdev_for_each_uc_addr(ha, netdev) {

			xgbe_set_mac_reg(pdata, ha, &mac_reg);

			addn_macs--;

		}



	if (!am_mode) {

		netdev_for_each_mc_addr(ha, pdata->netdev) {

			mac_addr_lo = 0;

			mac_addr_hi = 0;

			mac_addr = (u8 *)&mac_addr_lo;

			mac_addr[0] = ha->addr[0];

			mac_addr[1] = ha->addr[1];

			mac_addr[2] = ha->addr[2];

			mac_addr[3] = ha->addr[3];

			mac_addr = (u8 *)&mac_addr_hi;

			mac_addr[0] = ha->addr[4];

			mac_addr[1] = ha->addr[5];

		if (netdev_mc_count(netdev) > addn_macs) {

			xgbe_set_all_multicast_mode(pdata, 1);

		} else {

			netdev_for_each_mc_addr(ha, netdev) {

				xgbe_set_mac_reg(pdata, ha, &mac_reg);

				addn_macs--;

			}

		}

	}



			DBGPR("  adding multicast address %pM at 0x%04x\n",

			      ha->addr, mac_reg);

	/* Clear remaining additional MAC address entries */

	while (addn_macs--)

		xgbe_set_mac_reg(pdata, NULL, &mac_reg);

}



			XGMAC_SET_BITS(mac_addr_hi, MAC_MACA1HR, AE, 1);

static void xgbe_set_mac_hash_table(struct xgbe_prv_data *pdata)

{

	struct net_device *netdev = pdata->netdev;

	struct netdev_hw_addr *ha;

	unsigned int hash_reg;

	unsigned int hash_table_shift, hash_table_count;

	u32 hash_table[XGBE_MAC_HASH_TABLE_SIZE];

	u32 crc;

	unsigned int i;



			XGMAC_IOWRITE(pdata, mac_reg, mac_addr_hi);

			mac_reg += MAC_MACA_INC;

			XGMAC_IOWRITE(pdata, mac_reg, mac_addr_lo);

			mac_reg += MAC_MACA_INC;

	hash_table_shift = 26 - (pdata->hw_feat.hash_table_size >> 7);

	hash_table_count = pdata->hw_feat.hash_table_size / 32;

	memset(hash_table, 0, sizeof(hash_table));



			i++;

	/* Build the MAC Hash Table register values */

	netdev_for_each_uc_addr(ha, netdev) {

		crc = bitrev32(~crc32_le(~0, ha->addr, ETH_ALEN));

		crc >>= hash_table_shift;

		hash_table[crc >> 5] |= (1 << (crc & 0x1f));

	}



	netdev_for_each_mc_addr(ha, netdev) {

		crc = bitrev32(~crc32_le(~0, ha->addr, ETH_ALEN));

		crc >>= hash_table_shift;

		hash_table[crc >> 5] |= (1 << (crc & 0x1f));

	}



	/* Clear remaining additional MAC address entries */

	for (; i < pdata->hw_feat.addn_mac; i++) {

		XGMAC_IOWRITE(pdata, mac_reg, 0);

		mac_reg += MAC_MACA_INC;

		XGMAC_IOWRITE(pdata, mac_reg, 0);

		mac_reg += MAC_MACA_INC;

	/* Set the MAC Hash Table registers */

	hash_reg = MAC_HTR0;

	for (i = 0; i < hash_table_count; i++) {

		XGMAC_IOWRITE(pdata, hash_reg, hash_table[i]);

		hash_reg += MAC_HTR_INC;

	}

}



static int xgbe_add_mac_addresses(struct xgbe_prv_data *pdata)

{

	if (pdata->hw_feat.hash_table_size)

		xgbe_set_mac_hash_table(pdata);

	else

		xgbe_set_mac_addn_addrs(pdata);



	return 0;

}
@@ -738,6 +771,89 @@ static int xgbe_disable_rx_vlan_stripping(struct xgbe_prv_data *pdata) 
	return 0;

}



static int xgbe_enable_rx_vlan_filtering(struct xgbe_prv_data *pdata)

{

	/* Enable VLAN filtering */

	XGMAC_IOWRITE_BITS(pdata, MAC_PFR, VTFE, 1);



	/* Enable VLAN Hash Table filtering */

	XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VTHM, 1);



	/* Disable VLAN tag inverse matching */

	XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VTIM, 0);



	/* Only filter on the lower 12-bits of the VLAN tag */

	XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ETV, 1);



	/* In order for the VLAN Hash Table filtering to be effective,

	 * the VLAN tag identifier in the VLAN Tag Register must not

	 * be zero.  Set the VLAN tag identifier to "1" to enable the

	 * VLAN Hash Table filtering.  This implies that a VLAN tag of

	 * 1 will always pass filtering.

	 */

	XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VL, 1);



	return 0;

}



static int xgbe_disable_rx_vlan_filtering(struct xgbe_prv_data *pdata)

{

	/* Disable VLAN filtering */

	XGMAC_IOWRITE_BITS(pdata, MAC_PFR, VTFE, 0);



	return 0;

}



#ifndef CRCPOLY_LE

#define CRCPOLY_LE 0xedb88320

#endif

static u32 xgbe_vid_crc32_le(__le16 vid_le)

{

	u32 poly = CRCPOLY_LE;

	u32 crc = ~0;

	u32 temp = 0;

	unsigned char *data = (unsigned char *)&vid_le;

	unsigned char data_byte = 0;

	int i, bits;



	bits = get_bitmask_order(VLAN_VID_MASK);

	for (i = 0; i < bits; i++) {

		if ((i % 8) == 0)

			data_byte = data[i / 8];



		temp = ((crc & 1) ^ data_byte) & 1;

		crc >>= 1;

		data_byte >>= 1;



		if (temp)

			crc ^= poly;

	}



	return crc;

}



static int xgbe_update_vlan_hash_table(struct xgbe_prv_data *pdata)

{

	u32 crc;

	u16 vid;

	__le16 vid_le;

	u16 vlan_hash_table = 0;



	/* Generate the VLAN Hash Table value */

	for_each_set_bit(vid, pdata->active_vlans, VLAN_N_VID) {

		/* Get the CRC32 value of the VLAN ID */

		vid_le = cpu_to_le16(vid);

		crc = bitrev32(~xgbe_vid_crc32_le(vid_le)) >> 28;



		vlan_hash_table |= (1 << crc);

	}



	/* Set the VLAN Hash Table filtering register */

	XGMAC_IOWRITE_BITS(pdata, MAC_VLANHTR, VLHT, vlan_hash_table);



	return 0;

}



static void xgbe_tx_desc_reset(struct xgbe_ring_data *rdata)

{

	struct xgbe_ring_desc *rdesc = rdata->rdesc;
@@ -766,7 +882,7 @@ static void xgbe_tx_desc_init(struct xgbe_channel *channel) 


	/* Initialze all descriptors */

	for (i = 0; i < ring->rdesc_count; i++) {

		rdata = GET_DESC_DATA(ring, i);

		rdata = XGBE_GET_DESC_DATA(ring, i);

		rdesc = rdata->rdesc;



		/* Initialize Tx descriptor
@@ -791,7 +907,7 @@ static void xgbe_tx_desc_init(struct xgbe_channel *channel) 
	XGMAC_DMA_IOWRITE(channel, DMA_CH_TDRLR, ring->rdesc_count - 1);



	/* Update the starting address of descriptor ring */

	rdata = GET_DESC_DATA(ring, start_index);

	rdata = XGBE_GET_DESC_DATA(ring, start_index);

	XGMAC_DMA_IOWRITE(channel, DMA_CH_TDLR_HI,

			  upper_32_bits(rdata->rdesc_dma));

	XGMAC_DMA_IOWRITE(channel, DMA_CH_TDLR_LO,
@@ -848,7 +964,7 @@ static void xgbe_rx_desc_init(struct xgbe_channel *channel) 


	/* Initialize all descriptors */

	for (i = 0; i < ring->rdesc_count; i++) {

		rdata = GET_DESC_DATA(ring, i);

		rdata = XGBE_GET_DESC_DATA(ring, i);

		rdesc = rdata->rdesc;



		/* Initialize Rx descriptor
@@ -882,14 +998,14 @@ static void xgbe_rx_desc_init(struct xgbe_channel *channel) 
	XGMAC_DMA_IOWRITE(channel, DMA_CH_RDRLR, ring->rdesc_count - 1);



	/* Update the starting address of descriptor ring */

	rdata = GET_DESC_DATA(ring, start_index);

	rdata = XGBE_GET_DESC_DATA(ring, start_index);

	XGMAC_DMA_IOWRITE(channel, DMA_CH_RDLR_HI,

			  upper_32_bits(rdata->rdesc_dma));

	XGMAC_DMA_IOWRITE(channel, DMA_CH_RDLR_LO,

			  lower_32_bits(rdata->rdesc_dma));



	/* Update the Rx Descriptor Tail Pointer */

	rdata = GET_DESC_DATA(ring, start_index + ring->rdesc_count - 1);

	rdata = XGBE_GET_DESC_DATA(ring, start_index + ring->rdesc_count - 1);

	XGMAC_DMA_IOWRITE(channel, DMA_CH_RDTR_LO,

			  lower_32_bits(rdata->rdesc_dma));
@@ -933,7 +1049,7 @@ static void xgbe_pre_xmit(struct xgbe_channel *channel) 
	if (tx_coalesce && !channel->tx_timer_active)

		ring->coalesce_count = 0;



	rdata = GET_DESC_DATA(ring, ring->cur);

	rdata = XGBE_GET_DESC_DATA(ring, ring->cur);

	rdesc = rdata->rdesc;



	/* Create a context descriptor if this is a TSO packet */
@@ -977,7 +1093,7 @@ static void xgbe_pre_xmit(struct xgbe_channel *channel) 
		}



		ring->cur++;

		rdata = GET_DESC_DATA(ring, ring->cur);

		rdata = XGBE_GET_DESC_DATA(ring, ring->cur);

		rdesc = rdata->rdesc;

	}
@@ -1034,7 +1150,7 @@ static void xgbe_pre_xmit(struct xgbe_channel *channel) 


	for (i = ring->cur - start_index + 1; i < packet->rdesc_count; i++) {

		ring->cur++;

		rdata = GET_DESC_DATA(ring, ring->cur);

		rdata = XGBE_GET_DESC_DATA(ring, ring->cur);

		rdesc = rdata->rdesc;



		/* Update buffer address */
@@ -1074,7 +1190,7 @@ static void xgbe_pre_xmit(struct xgbe_channel *channel) 
	wmb();



	/* Set OWN bit for the first descriptor */

	rdata = GET_DESC_DATA(ring, start_index);

	rdata = XGBE_GET_DESC_DATA(ring, start_index);

	rdesc = rdata->rdesc;

	XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN, 1);
@@ -1088,7 +1204,7 @@ static void xgbe_pre_xmit(struct xgbe_channel *channel) 
	/* Issue a poll command to Tx DMA by writing address

	 * of next immediate free descriptor */

	ring->cur++;

	rdata = GET_DESC_DATA(ring, ring->cur);

	rdata = XGBE_GET_DESC_DATA(ring, ring->cur);

	XGMAC_DMA_IOWRITE(channel, DMA_CH_TDTR_LO,

			  lower_32_bits(rdata->rdesc_dma));
@@ -1113,11 +1229,12 @@ static int xgbe_dev_read(struct xgbe_channel *channel) 
	struct xgbe_ring_data *rdata;

	struct xgbe_ring_desc *rdesc;

	struct xgbe_packet_data *packet = &ring->packet_data;

	struct net_device *netdev = channel->pdata->netdev;

	unsigned int err, etlt;



	DBGPR("-->xgbe_dev_read: cur = %d\n", ring->cur);



	rdata = GET_DESC_DATA(ring, ring->cur);

	rdata = XGBE_GET_DESC_DATA(ring, ring->cur);

	rdesc = rdata->rdesc;



	/* Check for data availability */
@@ -1153,7 +1270,8 @@ static int xgbe_dev_read(struct xgbe_channel *channel) 
	DBGPR("  err=%u, etlt=%#x\n", err, etlt);



	if (!err || (err && !etlt)) {

		if (etlt == 0x09) {

		if ((etlt == 0x09) &&

		    (netdev->features & NETIF_F_HW_VLAN_CTAG_RX)) {

			XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,

				       VLAN_CTAG, 1);

			packet->vlan_ctag = XGMAC_GET_BITS_LE(rdesc->desc0,
@@ -1195,7 +1313,7 @@ static void xgbe_save_interrupt_status(struct xgbe_channel *channel, 


	if (int_state == XGMAC_INT_STATE_SAVE) {

		channel->saved_ier = XGMAC_DMA_IOREAD(channel, DMA_CH_IER);

		channel->saved_ier &= DMA_INTERRUPT_MASK;

		channel->saved_ier &= XGBE_DMA_INTERRUPT_MASK;

	} else {

		dma_ch_ier = XGMAC_DMA_IOREAD(channel, DMA_CH_IER);

		dma_ch_ier |= channel->saved_ier;
@@ -1275,7 +1393,7 @@ static int xgbe_disable_int(struct xgbe_channel *channel, 
		xgbe_save_interrupt_status(channel, XGMAC_INT_STATE_SAVE);



		dma_ch_ier = XGMAC_DMA_IOREAD(channel, DMA_CH_IER);

		dma_ch_ier &= ~DMA_INTERRUPT_MASK;

		dma_ch_ier &= ~XGBE_DMA_INTERRUPT_MASK;

		XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, dma_ch_ier);

		break;

	default:
@@ -1342,23 +1460,23 @@ static void xgbe_config_dma_cache(struct xgbe_prv_data *pdata) 
	unsigned int arcache, awcache;



	arcache = 0;

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, DRC, DMA_ARCACHE_SETTING);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, DRD, DMA_ARDOMAIN_SETTING);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, TEC, DMA_ARCACHE_SETTING);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, TED, DMA_ARDOMAIN_SETTING);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, THC, DMA_ARCACHE_SETTING);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, THD, DMA_ARDOMAIN_SETTING);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, DRC, XGBE_DMA_ARCACHE);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, DRD, XGBE_DMA_ARDOMAIN);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, TEC, XGBE_DMA_ARCACHE);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, TED, XGBE_DMA_ARDOMAIN);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, THC, XGBE_DMA_ARCACHE);

	XGMAC_SET_BITS(arcache, DMA_AXIARCR, THD, XGBE_DMA_ARDOMAIN);

	XGMAC_IOWRITE(pdata, DMA_AXIARCR, arcache);



	awcache = 0;

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, DWC, DMA_AWCACHE_SETTING);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, DWD, DMA_AWDOMAIN_SETTING);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RPC, DMA_AWCACHE_SETTING);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RPD, DMA_AWDOMAIN_SETTING);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RHC, DMA_AWCACHE_SETTING);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RHD, DMA_AWDOMAIN_SETTING);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, TDC, DMA_AWCACHE_SETTING);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, TDD, DMA_AWDOMAIN_SETTING);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, DWC, XGBE_DMA_AWCACHE);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, DWD, XGBE_DMA_AWDOMAIN);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RPC, XGBE_DMA_AWCACHE);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RPD, XGBE_DMA_AWDOMAIN);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RHC, XGBE_DMA_AWCACHE);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RHD, XGBE_DMA_AWDOMAIN);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, TDC, XGBE_DMA_AWCACHE);

	XGMAC_SET_BITS(awcache, DMA_AXIAWCR, TDD, XGBE_DMA_AWDOMAIN);

	XGMAC_IOWRITE(pdata, DMA_AXIAWCR, awcache);

}
@@ -1388,66 +1506,66 @@ static unsigned int xgbe_calculate_per_queue_fifo(unsigned long fifo_size, 
	/* Calculate Tx/Rx fifo share per queue */

	switch (fifo_size) {

	case 0:

		q_fifo_size = FIFO_SIZE_B(128);

		q_fifo_size = XGBE_FIFO_SIZE_B(128);

		break;

	case 1:

		q_fifo_size = FIFO_SIZE_B(256);

		q_fifo_size = XGBE_FIFO_SIZE_B(256);

		break;

	case 2:

		q_fifo_size = FIFO_SIZE_B(512);

		q_fifo_size = XGBE_FIFO_SIZE_B(512);

		break;

	case 3:

		q_fifo_size = FIFO_SIZE_KB(1);

		q_fifo_size = XGBE_FIFO_SIZE_KB(1);

		break;

	case 4:

		q_fifo_size = FIFO_SIZE_KB(2);

		q_fifo_size = XGBE_FIFO_SIZE_KB(2);

		break;

	case 5:

		q_fifo_size = FIFO_SIZE_KB(4);

		q_fifo_size = XGBE_FIFO_SIZE_KB(4);

		break;

	case 6:

		q_fifo_size = FIFO_SIZE_KB(8);

		q_fifo_size = XGBE_FIFO_SIZE_KB(8);

		break;

	case 7:

		q_fifo_size = FIFO_SIZE_KB(16);

		q_fifo_size = XGBE_FIFO_SIZE_KB(16);

		break;

	case 8:

		q_fifo_size = FIFO_SIZE_KB(32);

		q_fifo_size = XGBE_FIFO_SIZE_KB(32);

		break;

	case 9:

		q_fifo_size = FIFO_SIZE_KB(64);

		q_fifo_size = XGBE_FIFO_SIZE_KB(64);

		break;

	case 10:

		q_fifo_size = FIFO_SIZE_KB(128);

		q_fifo_size = XGBE_FIFO_SIZE_KB(128);

		break;

	case 11:

		q_fifo_size = FIFO_SIZE_KB(256);

		q_fifo_size = XGBE_FIFO_SIZE_KB(256);

		break;

	}

	q_fifo_size = q_fifo_size / queue_count;



	/* Set the queue fifo size programmable value */

	if (q_fifo_size >= FIFO_SIZE_KB(256))

	if (q_fifo_size >= XGBE_FIFO_SIZE_KB(256))

		p_fifo = XGMAC_MTL_FIFO_SIZE_256K;

	else if (q_fifo_size >= FIFO_SIZE_KB(128))

	else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(128))

		p_fifo = XGMAC_MTL_FIFO_SIZE_128K;

	else if (q_fifo_size >= FIFO_SIZE_KB(64))

	else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(64))

		p_fifo = XGMAC_MTL_FIFO_SIZE_64K;

	else if (q_fifo_size >= FIFO_SIZE_KB(32))

	else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(32))

		p_fifo = XGMAC_MTL_FIFO_SIZE_32K;

	else if (q_fifo_size >= FIFO_SIZE_KB(16))

	else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(16))

		p_fifo = XGMAC_MTL_FIFO_SIZE_16K;

	else if (q_fifo_size >= FIFO_SIZE_KB(8))

	else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(8))

		p_fifo = XGMAC_MTL_FIFO_SIZE_8K;

	else if (q_fifo_size >= FIFO_SIZE_KB(4))

	else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(4))

		p_fifo = XGMAC_MTL_FIFO_SIZE_4K;

	else if (q_fifo_size >= FIFO_SIZE_KB(2))

	else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(2))

		p_fifo = XGMAC_MTL_FIFO_SIZE_2K;

	else if (q_fifo_size >= FIFO_SIZE_KB(1))

	else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(1))

		p_fifo = XGMAC_MTL_FIFO_SIZE_1K;

	else if (q_fifo_size >= FIFO_SIZE_B(512))

	else if (q_fifo_size >= XGBE_FIFO_SIZE_B(512))

		p_fifo = XGMAC_MTL_FIFO_SIZE_512;

	else if (q_fifo_size >= FIFO_SIZE_B(256))

	else if (q_fifo_size >= XGBE_FIFO_SIZE_B(256))

		p_fifo = XGMAC_MTL_FIFO_SIZE_256;



	return p_fifo;
@@ -1520,6 +1638,13 @@ static void xgbe_config_flow_control_threshold(struct xgbe_prv_data *pdata) 
static void xgbe_config_mac_address(struct xgbe_prv_data *pdata)

{

	xgbe_set_mac_address(pdata, pdata->netdev->dev_addr);



	/* Filtering is done using perfect filtering and hash filtering */

	if (pdata->hw_feat.hash_table_size) {

		XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HPF, 1);

		XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HUC, 1);

		XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HMC, 1);

	}

}



static void xgbe_config_jumbo_enable(struct xgbe_prv_data *pdata)
@@ -1541,6 +1666,18 @@ static void xgbe_config_checksum_offload(struct xgbe_prv_data *pdata) 


static void xgbe_config_vlan_support(struct xgbe_prv_data *pdata)

{

	/* Indicate that VLAN Tx CTAGs come from context descriptors */

	XGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, CSVL, 0);

	XGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, VLTI, 1);



	/* Set the current VLAN Hash Table register value */

	xgbe_update_vlan_hash_table(pdata);



	if (pdata->netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER)

		xgbe_enable_rx_vlan_filtering(pdata);

	else

		xgbe_disable_rx_vlan_filtering(pdata);



	if (pdata->netdev->features & NETIF_F_HW_VLAN_CTAG_RX)

		xgbe_enable_rx_vlan_stripping(pdata);

	else
@@ -2104,7 +2241,7 @@ void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *hw_if) 


	hw_if->set_promiscuous_mode = xgbe_set_promiscuous_mode;

	hw_if->set_all_multicast_mode = xgbe_set_all_multicast_mode;

	hw_if->set_addn_mac_addrs = xgbe_set_addn_mac_addrs;

	hw_if->add_mac_addresses = xgbe_add_mac_addresses;

	hw_if->set_mac_address = xgbe_set_mac_address;



	hw_if->enable_rx_csum = xgbe_enable_rx_csum;
@@ -2112,6 +2249,9 @@ void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *hw_if) 


	hw_if->enable_rx_vlan_stripping = xgbe_enable_rx_vlan_stripping;

	hw_if->disable_rx_vlan_stripping = xgbe_disable_rx_vlan_stripping;

	hw_if->enable_rx_vlan_filtering = xgbe_enable_rx_vlan_filtering;

	hw_if->disable_rx_vlan_filtering = xgbe_disable_rx_vlan_filtering;

	hw_if->update_vlan_hash_table = xgbe_update_vlan_hash_table;



	hw_if->read_mmd_regs = xgbe_read_mmd_regs;

	hw_if->write_mmd_regs = xgbe_write_mmd_regs;

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