From: gnandiba <girish.nandibasa...@amd.com>

Added VLAN support for AMD XGBE driver

adding below APIs for axgbe
- axgbe_enable_rx_vlan_stripping: to enable vlan header stipping
- axgbe_disable_rx_vlan_stripping: to disable vlan header stipping
- axgbe_enable_rx_vlan_filtering: to enable vlan filter mode
- axgbe_disable_rx_vlan_filtering: to disable vlan filter mode
- axgbe_update_vlan_hash_table: crc calculation and hash table update
based on vlan values post filter enable
- axgbe_vlan_filter_set: setting of active vlan out of max 4K values before
doing hash update of same
- axgbe_vlan_tpid_set: setting of default tpid values
- axgbe_vlan_offload_set: a top layer function to call stip/filter etc
based on mask values

Signed-off-by: gnandiba <girish.nandibasa...@amd.com>
---
 doc/guides/nics/features/axgbe.ini |   1 +
 drivers/net/axgbe/axgbe_common.h   |  30 +++++
 drivers/net/axgbe/axgbe_dev.c      | 171 +++++++++++++++++++++++++++--
 drivers/net/axgbe/axgbe_ethdev.c   | 170 +++++++++++++++++++++++++++-
 drivers/net/axgbe/axgbe_ethdev.h   |  16 +++
 drivers/net/axgbe/axgbe_rxtx.c     |  70 +++++++++++-
 6 files changed, 442 insertions(+), 16 deletions(-)

diff --git a/doc/guides/nics/features/axgbe.ini 
b/doc/guides/nics/features/axgbe.ini
index 34df0d1ee..10bbd14fd 100644
--- a/doc/guides/nics/features/axgbe.ini
+++ b/doc/guides/nics/features/axgbe.ini
@@ -13,6 +13,7 @@ Allmulticast mode    = Y
 RSS hash             = Y
 RSS key update       = Y
 RSS reta update      = Y
+VLAN                 = Y
 CRC offload          = Y
 L3 checksum offload  = Y
 L4 checksum offload  = Y
diff --git a/drivers/net/axgbe/axgbe_common.h b/drivers/net/axgbe/axgbe_common.h
index fb97f0b5b..91404ca01 100644
--- a/drivers/net/axgbe/axgbe_common.h
+++ b/drivers/net/axgbe/axgbe_common.h
@@ -259,6 +259,7 @@
 #define MAC_HWF0R                      0x011c
 #define MAC_HWF1R                      0x0120
 #define MAC_HWF2R                      0x0124
+#define MAC_HWF3R                      0x0128
 #define MAC_MDIOSCAR                   0x0200
 #define MAC_MDIOSCCDR                  0x0204
 #define MAC_MDIOISR                    0x0214
@@ -284,6 +285,19 @@
 #define MAC_TXSNR                      0x0d30
 #define MAC_TXSSR                      0x0d34
 
+/*VLAN control bit mask*/
+#define AXGBE_VLNCTRL_MASK             0x0000FFFF
+#define VLAN_PRIO_MASK                 0xe000 /* Priority Code Point */
+#define VLAN_PRIO_SHIFT                        13
+#define VLAN_CFI_MASK                  0x1000 /* Canonical Format Indicator */
+#define VLAN_TAG_PRESENT               VLAN_CFI_MASK
+#define VLAN_VID_MASK                  0x0fff /* VLAN Identifier */
+#define VLAN_N_VID                     4096
+#define VLAN_TABLE_SIZE                        64
+#define VLAN_TABLE_BIT(vlan_id)        (1UL << ((vlan_id) & 0x3F))
+#define VLAN_TABLE_IDX(vlan_id)        ((vlan_id) >> 6)
+#define RX_CVLAN_TAG_PRESENT                   9
+
 #define MAC_QTFCR_INC                  4
 #define MAC_MACA_INC                   4
 #define MAC_HTR_INC                    4
@@ -361,6 +375,10 @@
 #define MAC_HWF2R_TXCHCNT_WIDTH                4
 #define MAC_HWF2R_TXQCNT_INDEX         6
 #define MAC_HWF2R_TXQCNT_WIDTH         4
+#define MAC_HWF3R_CBTISEL_INDEX                4
+#define MAC_HWF3R_CBTISEL_WIDTH                1
+#define MAC_HWF3R_NRVF_INDEX           0
+#define MAC_HWF3R_NRVF_WIDTH           3
 #define MAC_IER_TSIE_INDEX             12
 #define MAC_IER_TSIE_WIDTH             1
 #define MAC_ISR_MMCRXIS_INDEX          9
@@ -519,6 +537,8 @@
 #define MAC_VLANIR_VLTI_WIDTH          1
 #define MAC_VLANIR_CSVL_INDEX          19
 #define MAC_VLANIR_CSVL_WIDTH          1
+#define MAC_VLANIR_VLC_INDEX           16
+#define MAC_VLANIR_VLC_WIDTH           2
 #define MAC_VLANTR_DOVLTC_INDEX                20
 #define MAC_VLANTR_DOVLTC_WIDTH                1
 #define MAC_VLANTR_ERSVLM_INDEX                19
@@ -529,12 +549,18 @@
 #define MAC_VLANTR_ETV_WIDTH           1
 #define MAC_VLANTR_EVLS_INDEX          21
 #define MAC_VLANTR_EVLS_WIDTH          2
+#define MAC_VLANTR_EIVLS_INDEX         21
+#define MAC_VLANTR_EIVLS_WIDTH         2
 #define MAC_VLANTR_EVLRXS_INDEX                24
 #define MAC_VLANTR_EVLRXS_WIDTH                1
+#define MAC_VLANTR_EIVLRXS_INDEX       31
+#define MAC_VLANTR_EIVLRXS_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_EDVLP_INDEX         26
+#define MAC_VLANTR_EDVLP_WIDTH         1
 #define MAC_VLANTR_VTIM_INDEX          17
 #define MAC_VLANTR_VTIM_WIDTH          1
 #define MAC_VR_DEVID_INDEX             8
@@ -543,6 +569,10 @@
 #define MAC_VR_SNPSVER_WIDTH           8
 #define MAC_VR_USERVER_INDEX           16
 #define MAC_VR_USERVER_WIDTH           8
+#define MAC_VLANIR_VLT_INDEX           0
+#define MAC_VLANIR_VLT_WIDTH           16
+#define MAC_VLANTR_ERIVLT_INDEX                27
+#define MAC_VLANTR_ERIVLT_WIDTH                1
 
 
 /* MMC register offsets */
diff --git a/drivers/net/axgbe/axgbe_dev.c b/drivers/net/axgbe/axgbe_dev.c
index af62eae3b..786288a7b 100644
--- a/drivers/net/axgbe/axgbe_dev.c
+++ b/drivers/net/axgbe/axgbe_dev.c
@@ -8,6 +8,46 @@
 #include "axgbe_phy.h"
 #include "axgbe_rxtx.h"
 
+static uint32_t bitrev32(uint32_t x)
+{
+       x = (x >> 16) | (x << 16);
+       x = (((x & 0xff00ff00) >> 8) | ((x & 0x00ff00ff) << 8));
+       x = (((x & 0xf0f0f0f0) >> 4) | ((x & 0x0f0f0f0f) << 4));
+       x = (((x & 0xcccccccc) >> 2) | ((x & 0x33333333) << 2));
+       x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1));
+       return x;
+}
+
+/*MSB set bit from 32 to 1*/
+static int get_lastbit_set(int x)
+{
+       int r = 32;
+
+       if (!x)
+               return 0;
+       if (!(x & 0xffff0000)) {
+               x <<= 16;
+               r -= 16;
+       }
+       if (!(x & 0xff000000)) {
+               x <<= 8;
+               r -= 8;
+       }
+       if (!(x & 0xf0000000)) {
+               x <<= 4;
+               r -= 4;
+       }
+       if (!(x & 0xc0000000)) {
+               x <<= 2;
+               r -= 2;
+       }
+       if (!(x & 0x80000000)) {
+               x <<= 1;
+               r -= 1;
+       }
+       return r;
+}
+
 static inline unsigned int axgbe_get_max_frame(struct axgbe_port *pdata)
 {
        return pdata->eth_dev->data->mtu + RTE_ETHER_HDR_LEN +
@@ -407,6 +447,120 @@ static void axgbe_config_flow_control_threshold(struct 
axgbe_port *pdata)
        }
 }
 
+static int axgbe_enable_rx_vlan_stripping(struct axgbe_port *pdata)
+{
+       /* Put the VLAN tag in the Rx descriptor */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EVLRXS, 1);
+
+       /* Don't check the VLAN type */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, DOVLTC, 1);
+
+       /* Check only C-TAG (0x8100) packets */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ERSVLM, 0);
+
+       /* Don't consider an S-TAG (0x88A8) packet as a VLAN packet */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ESVL, 0);
+
+       /* Enable VLAN tag stripping */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EVLS, 0x3);
+       return 0;
+}
+
+static int axgbe_disable_rx_vlan_stripping(struct axgbe_port *pdata)
+{
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EVLS, 0);
+       return 0;
+}
+
+static int axgbe_enable_rx_vlan_filtering(struct axgbe_port *pdata)
+{
+       /* Enable VLAN filtering */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_PFR, VTFE, 1);
+
+       /* Enable VLAN Hash Table filtering */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VTHM, 1);
+
+       /* Disable VLAN tag inverse matching */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VTIM, 0);
+
+       /* Only filter on the lower 12-bits of the VLAN tag */
+       AXGMAC_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.
+        */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VL, 1);
+       return 0;
+}
+
+static int axgbe_disable_rx_vlan_filtering(struct axgbe_port *pdata)
+{
+       /* Disable VLAN filtering */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_PFR, VTFE, 0);
+       return 0;
+}
+
+static u32 axgbe_vid_crc32_le(__le16 vid_le)
+{
+       u32 poly = 0xedb88320;  /* 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_lastbit_set(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 axgbe_update_vlan_hash_table(struct axgbe_port *pdata)
+{
+       u32 crc = 0;
+       u16 vid;
+       __le16 vid_le = 0;
+       u16 vlan_hash_table = 0;
+       unsigned int reg = 0;
+       unsigned long vid_idx, vid_valid;
+
+       /* Generate the VLAN Hash Table value */
+       for (vid = 0; vid < VLAN_N_VID; vid++) {
+               vid_idx = VLAN_TABLE_IDX(vid);
+               vid_valid = pdata->active_vlans[vid_idx];
+               vid_valid = (unsigned long)vid_valid >> (vid - (64 * vid_idx));
+               if (vid_valid & 1)
+                       PMD_DRV_LOG(DEBUG,
+                                   "vid:%d pdata->active_vlans[%ld]=0x%lx\n",
+                                   vid, vid_idx, pdata->active_vlans[vid_idx]);
+               else
+                       continue;
+
+               vid_le = rte_cpu_to_le_16(vid);
+               crc = bitrev32(~axgbe_vid_crc32_le(vid_le)) >> 28;
+               vlan_hash_table |= (1 << crc);
+               PMD_DRV_LOG(DEBUG, "crc = %d vlan_hash_table = 0x%x\n",
+                           crc, vlan_hash_table);
+       }
+       /* Set the VLAN Hash Table filtering register */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANHTR, VLHT, vlan_hash_table);
+       reg = AXGMAC_IOREAD(pdata, MAC_VLANHTR);
+       PMD_DRV_LOG(DEBUG, "vlan_hash_table reg val = 0x%x\n", reg);
+       return 0;
+}
+
 static int __axgbe_exit(struct axgbe_port *pdata)
 {
        unsigned int count = 2000;
@@ -1009,16 +1163,6 @@ static void axgbe_enable_mtl_interrupts(struct 
axgbe_port *pdata)
        }
 }
 
-static uint32_t bitrev32(uint32_t x)
-{
-       x = (x >> 16) | (x << 16);
-       x = (((x & 0xff00ff00) >> 8) | ((x & 0x00ff00ff) << 8));
-       x = (((x & 0xf0f0f0f0) >> 4) | ((x & 0x0f0f0f0f) << 4));
-       x = (((x & 0xcccccccc) >> 2) | ((x & 0x33333333) << 2));
-       x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1));
-       return x;
-}
-
 static uint32_t crc32_le(uint32_t crc, uint8_t *p, uint32_t len)
 {
        int i;
@@ -1218,4 +1362,11 @@ void axgbe_init_function_ptrs_dev(struct axgbe_hw_if 
*hw_if)
        /* For FLOW ctrl */
        hw_if->config_tx_flow_control = axgbe_config_tx_flow_control;
        hw_if->config_rx_flow_control = axgbe_config_rx_flow_control;
+
+       /*vlan*/
+       hw_if->enable_rx_vlan_stripping = axgbe_enable_rx_vlan_stripping;
+       hw_if->disable_rx_vlan_stripping = axgbe_disable_rx_vlan_stripping;
+       hw_if->enable_rx_vlan_filtering = axgbe_enable_rx_vlan_filtering;
+       hw_if->disable_rx_vlan_filtering = axgbe_disable_rx_vlan_filtering;
+       hw_if->update_vlan_hash_table = axgbe_update_vlan_hash_table;
 }
diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index cfe6aba73..760426029 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -109,6 +109,11 @@ axgbe_set_tstamp_time(struct axgbe_port *pdata, unsigned 
int sec,
 static void
 axgbe_update_tstamp_addend(struct axgbe_port *pdata,
                        unsigned int addend);
+static int
+       axgbe_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vid, int on);
+static int axgbe_vlan_tpid_set(struct rte_eth_dev *dev,
+                               enum rte_vlan_type vlan_type, uint16_t tpid);
+static int axgbe_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 
 struct axgbe_xstats {
        char name[RTE_ETH_XSTATS_NAME_SIZE];
@@ -250,6 +255,9 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = {
        .txq_info_get                 = axgbe_txq_info_get,
        .dev_supported_ptypes_get     = axgbe_dev_supported_ptypes_get,
        .mtu_set                = axgb_mtu_set,
+       .vlan_filter_set      = axgbe_vlan_filter_set,
+       .vlan_tpid_set        = axgbe_vlan_tpid_set,
+       .vlan_offload_set     = axgbe_vlan_offload_set,
        .timesync_enable              = axgbe_timesync_enable,
        .timesync_disable             = axgbe_timesync_disable,
        .timesync_read_rx_timestamp   = axgbe_timesync_read_rx_timestamp,
@@ -1163,6 +1171,9 @@ axgbe_dev_info_get(struct rte_eth_dev *dev, struct 
rte_eth_dev_info *dev_info)
        dev_info->speed_capa =  ETH_LINK_SPEED_10G;
 
        dev_info->rx_offload_capa =
+               DEV_RX_OFFLOAD_VLAN_STRIP |
+               DEV_RX_OFFLOAD_VLAN_FILTER |
+               DEV_RX_OFFLOAD_VLAN_EXTEND |
                DEV_RX_OFFLOAD_IPV4_CKSUM |
                DEV_RX_OFFLOAD_UDP_CKSUM  |
                DEV_RX_OFFLOAD_TCP_CKSUM  |
@@ -1171,6 +1182,8 @@ axgbe_dev_info_get(struct rte_eth_dev *dev, struct 
rte_eth_dev_info *dev_info)
                DEV_RX_OFFLOAD_KEEP_CRC;
 
        dev_info->tx_offload_capa =
+               DEV_TX_OFFLOAD_VLAN_INSERT |
+               DEV_TX_OFFLOAD_QINQ_INSERT |
                DEV_TX_OFFLOAD_IPV4_CKSUM  |
                DEV_TX_OFFLOAD_UDP_CKSUM   |
                DEV_TX_OFFLOAD_TCP_CKSUM;
@@ -1756,14 +1769,163 @@ axgbe_timesync_read_tx_timestamp(struct rte_eth_dev 
*dev,
        return 0;
 }
 
+static int
+axgbe_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vid, int on)
+{
+       struct axgbe_port *pdata = dev->data->dev_private;
+       unsigned long vid_bit, vid_idx;
+
+       vid_bit = VLAN_TABLE_BIT(vid);
+       vid_idx = VLAN_TABLE_IDX(vid);
+
+       if (on) {
+               PMD_DRV_LOG(DEBUG, "Set VLAN vid=%d for device = %s\n",
+                           vid, pdata->eth_dev->device->name);
+               pdata->active_vlans[vid_idx] |= vid_bit;
+       } else {
+               PMD_DRV_LOG(DEBUG, "Reset VLAN vid=%d for device = %s\n",
+                           vid, pdata->eth_dev->device->name);
+               pdata->active_vlans[vid_idx] &= ~vid_bit;
+       }
+       pdata->hw_if.update_vlan_hash_table(pdata);
+       return 0;
+}
+
+static int
+axgbe_vlan_tpid_set(struct rte_eth_dev *dev,
+                   enum rte_vlan_type vlan_type,
+                   uint16_t tpid)
+{
+       struct axgbe_port *pdata = dev->data->dev_private;
+       uint32_t reg = 0;
+       uint32_t qinq = 0;
+
+       qinq = AXGMAC_IOREAD_BITS(pdata, MAC_VLANTR, EDVLP);
+       PMD_DRV_LOG(DEBUG, "EDVLP: qinq = 0x%x\n", qinq);
+
+       switch (vlan_type) {
+       case ETH_VLAN_TYPE_INNER:
+               PMD_DRV_LOG(DEBUG, "ETH_VLAN_TYPE_INNER\n");
+               if (qinq) {
+                       if (tpid != 0x8100 && tpid != 0x88a8)
+                               PMD_DRV_LOG(ERR,
+                                           "tag supported 0x8100/0x88A8\n");
+                       PMD_DRV_LOG(DEBUG, "qinq with inner tag\n");
+
+                       /*Enable Inner VLAN Tag */
+                       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ERIVLT, 1);
+                       reg = AXGMAC_IOREAD_BITS(pdata, MAC_VLANTR, ERIVLT);
+                       PMD_DRV_LOG(DEBUG, "bit ERIVLT = 0x%x\n", reg);
+
+               } else {
+                       PMD_DRV_LOG(ERR,
+                                   "Inner type not supported in single tag\n");
+               }
+               break;
+       case ETH_VLAN_TYPE_OUTER:
+               PMD_DRV_LOG(DEBUG, "ETH_VLAN_TYPE_OUTER\n");
+               if (qinq) {
+                       PMD_DRV_LOG(DEBUG, "double tagging is enabled\n");
+                       /*Enable outer VLAN tag*/
+                       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ERIVLT, 0);
+                       reg = AXGMAC_IOREAD_BITS(pdata, MAC_VLANTR, ERIVLT);
+                       PMD_DRV_LOG(DEBUG, "bit ERIVLT = 0x%x\n", reg);
+
+                       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, CSVL, 1);
+                       reg = AXGMAC_IOREAD_BITS(pdata, MAC_VLANIR, CSVL);
+                       PMD_DRV_LOG(DEBUG, "bit CSVL = 0x%x\n", reg);
+               } else {
+                       if (tpid != 0x8100 && tpid != 0x88a8)
+                               PMD_DRV_LOG(ERR,
+                                           "tag supported 0x8100/0x88A8\n");
+               }
+               break;
+       case ETH_VLAN_TYPE_MAX:
+               PMD_DRV_LOG(ERR, "ETH_VLAN_TYPE_MAX\n");
+               break;
+       case ETH_VLAN_TYPE_UNKNOWN:
+               PMD_DRV_LOG(ERR, "ETH_VLAN_TYPE_UNKNOWN\n");
+               break;
+       }
+       return 0;
+}
+
+static void axgbe_vlan_extend_enable(struct axgbe_port *pdata)
+{
+       int qinq = 0;
+
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EDVLP, 1);
+       qinq = AXGMAC_IOREAD_BITS(pdata, MAC_VLANTR, EDVLP);
+       PMD_DRV_LOG(DEBUG, "vlan double tag enabled EDVLP:qinq=0x%x\n", qinq);
+}
+
+static void axgbe_vlan_extend_disable(struct axgbe_port *pdata)
+{
+       int qinq = 0;
+
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EDVLP, 0);
+       qinq = AXGMAC_IOREAD_BITS(pdata, MAC_VLANTR, EDVLP);
+       PMD_DRV_LOG(DEBUG, "vlan double tag disable EDVLP:qinq=0x%x\n", qinq);
+}
+
+static int
+axgbe_vlan_offload_set(struct rte_eth_dev *dev, int mask)
+{
+       struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
+       struct axgbe_port *pdata = dev->data->dev_private;
+
+       /* Indicate that VLAN Tx CTAGs come from context descriptors */
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, CSVL, 0);
+       AXGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, VLTI, 1);
+
+       if (mask & ETH_VLAN_STRIP_MASK) {
+               if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP) {
+                       PMD_DRV_LOG(DEBUG, "Strip ON for device = %s\n",
+                                   pdata->eth_dev->device->name);
+                       pdata->hw_if.enable_rx_vlan_stripping(pdata);
+               } else {
+                       PMD_DRV_LOG(DEBUG, "Strip OFF for device = %s\n",
+                                   pdata->eth_dev->device->name);
+                       pdata->hw_if.disable_rx_vlan_stripping(pdata);
+               }
+       }
+       if (mask & ETH_VLAN_FILTER_MASK) {
+               if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_FILTER) {
+                       PMD_DRV_LOG(DEBUG, "Filter ON for device = %s\n",
+                                   pdata->eth_dev->device->name);
+                       pdata->hw_if.enable_rx_vlan_filtering(pdata);
+               } else {
+                       PMD_DRV_LOG(DEBUG, "Filter OFF for device = %s\n",
+                                   pdata->eth_dev->device->name);
+                       pdata->hw_if.disable_rx_vlan_filtering(pdata);
+               }
+       }
+       if (mask & ETH_VLAN_EXTEND_MASK) {
+               if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_EXTEND) {
+                       PMD_DRV_LOG(DEBUG, "enabling vlan extended mode\n");
+                       axgbe_vlan_extend_enable(pdata);
+                       /* Set global registers with default ethertype*/
+                       axgbe_vlan_tpid_set(dev, ETH_VLAN_TYPE_OUTER,
+                                           RTE_ETHER_TYPE_VLAN);
+                       axgbe_vlan_tpid_set(dev, ETH_VLAN_TYPE_INNER,
+                                           RTE_ETHER_TYPE_VLAN);
+               } else {
+                       PMD_DRV_LOG(DEBUG, "disabling vlan extended mode\n");
+                       axgbe_vlan_extend_disable(pdata);
+               }
+       }
+       return 0;
+}
+
 static void axgbe_get_all_hw_features(struct axgbe_port *pdata)
 {
-       unsigned int mac_hfr0, mac_hfr1, mac_hfr2;
+       unsigned int mac_hfr0, mac_hfr1, mac_hfr2, mac_hfr3;
        struct axgbe_hw_features *hw_feat = &pdata->hw_feat;
 
        mac_hfr0 = AXGMAC_IOREAD(pdata, MAC_HWF0R);
        mac_hfr1 = AXGMAC_IOREAD(pdata, MAC_HWF1R);
        mac_hfr2 = AXGMAC_IOREAD(pdata, MAC_HWF2R);
+       mac_hfr3 = AXGMAC_IOREAD(pdata, MAC_HWF3R);
 
        memset(hw_feat, 0, sizeof(*hw_feat));
 
@@ -1814,6 +1976,12 @@ static void axgbe_get_all_hw_features(struct axgbe_port 
*pdata)
        hw_feat->aux_snap_num = AXGMAC_GET_BITS(mac_hfr2, MAC_HWF2R,
                                                AUXSNAPNUM);
 
+       /* Hardware feature register 3 */
+       hw_feat->tx_q_vlan_tag_ins  = AXGMAC_GET_BITS(mac_hfr3,
+                                                     MAC_HWF3R, CBTISEL);
+       hw_feat->no_of_vlan_extn    = AXGMAC_GET_BITS(mac_hfr3,
+                                                     MAC_HWF3R, NRVF);
+
        /* Translate the Hash Table size into actual number */
        switch (hw_feat->hash_table_size) {
        case 0:
diff --git a/drivers/net/axgbe/axgbe_ethdev.h b/drivers/net/axgbe/axgbe_ethdev.h
index 35a847646..1481fd9ff 100644
--- a/drivers/net/axgbe/axgbe_ethdev.h
+++ b/drivers/net/axgbe/axgbe_ethdev.h
@@ -299,6 +299,13 @@ struct axgbe_hw_if {
        int (*config_tx_flow_control)(struct axgbe_port *);
        int (*config_rx_flow_control)(struct axgbe_port *);
 
+       /* vlan */
+       int (*enable_rx_vlan_stripping)(struct axgbe_port *);
+       int (*disable_rx_vlan_stripping)(struct axgbe_port *);
+       int (*enable_rx_vlan_filtering)(struct axgbe_port *);
+       int (*disable_rx_vlan_filtering)(struct axgbe_port *);
+       int (*update_vlan_hash_table)(struct axgbe_port *);
+
        int (*exit)(struct axgbe_port *);
 };
 
@@ -433,6 +440,12 @@ struct axgbe_hw_features {
        unsigned int tx_ch_cnt;         /* Number of DMA Transmit Channels */
        unsigned int pps_out_num;       /* Number of PPS outputs */
        unsigned int aux_snap_num;      /* Number of Aux snapshot inputs */
+
+       /* HW Feature Register3 */
+       unsigned int tx_q_vlan_tag_ins; /* Queue/Channel based VLAN tag */
+                                       /* insertion on Tx Enable */
+       unsigned int no_of_vlan_extn;   /* Number of Extended VLAN Tag */
+                                       /* Filters Enabled */
 };
 
 struct axgbe_version_data {
@@ -654,6 +667,9 @@ struct axgbe_port {
        unsigned int uc_hash_mac_addr;
        unsigned int uc_hash_table[AXGBE_MAC_HASH_TABLE_SIZE];
 
+       /* Filtering support */
+       unsigned long active_vlans[VLAN_TABLE_SIZE];
+
        /* For IEEE1588 PTP */
        struct rte_timecounter systime_tc;
        struct rte_timecounter tx_tstamp;
diff --git a/drivers/net/axgbe/axgbe_rxtx.c b/drivers/net/axgbe/axgbe_rxtx.c
index 032e3cebc..71e3cffc5 100644
--- a/drivers/net/axgbe/axgbe_rxtx.c
+++ b/drivers/net/axgbe/axgbe_rxtx.c
@@ -209,9 +209,10 @@ axgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
        volatile union axgbe_rx_desc *desc;
        uint64_t old_dirty = rxq->dirty;
        struct rte_mbuf *mbuf, *tmbuf;
-       unsigned int err;
+       unsigned int err, etlt;
        uint32_t error_status;
        uint16_t idx, pidx, pkt_len;
+       uint64_t offloads;
 
        idx = AXGBE_GET_DESC_IDX(rxq, rxq->cur);
        while (nb_rx < nb_pkts) {
@@ -276,6 +277,26 @@ axgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
                /* Get the RSS hash */
                if (AXGMAC_GET_BITS_LE(desc->write.desc3, RX_NORMAL_DESC3, RSV))
                        mbuf->hash.rss = rte_le_to_cpu_32(desc->write.desc1);
+               etlt = AXGMAC_GET_BITS_LE(desc->write.desc3,
+                               RX_NORMAL_DESC3, ETLT);
+               offloads = rxq->pdata->eth_dev->data->dev_conf.rxmode.offloads;
+               if (!err || !etlt) {
+                       if (etlt == RX_CVLAN_TAG_PRESENT) {
+                               mbuf->ol_flags |= PKT_RX_VLAN;
+                               mbuf->vlan_tci =
+                                       AXGMAC_GET_BITS_LE(desc->write.desc0,
+                                                       RX_NORMAL_DESC0, OVT);
+                               if (offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
+                                       mbuf->ol_flags |= PKT_RX_VLAN_STRIPPED;
+                               else
+                                       mbuf->ol_flags &= ~PKT_RX_VLAN_STRIPPED;
+                               } else {
+                                       mbuf->ol_flags &=
+                                               ~(PKT_RX_VLAN
+                                                       | PKT_RX_VLAN_STRIPPED);
+                                       mbuf->vlan_tci = 0;
+                               }
+               }
                /* Indicate if a Context Descriptor is next */
                if (AXGMAC_GET_BITS_LE(desc->write.desc3, RX_NORMAL_DESC3, CDA))
                        mbuf->ol_flags |= PKT_RX_IEEE1588_PTP
@@ -324,9 +345,10 @@ uint16_t eth_axgbe_recv_scattered_pkts(void *rx_queue,
        uint64_t old_dirty = rxq->dirty;
        struct rte_mbuf *first_seg = NULL;
        struct rte_mbuf *mbuf, *tmbuf;
-       unsigned int err;
+       unsigned int err, etlt;
        uint32_t error_status;
        uint16_t idx, pidx, data_len = 0, pkt_len = 0;
+       uint64_t offloads;
 
        idx = AXGBE_GET_DESC_IDX(rxq, rxq->cur);
        while (nb_rx < nb_pkts) {
@@ -399,7 +421,25 @@ uint16_t eth_axgbe_recv_scattered_pkts(void *rx_queue,
                /* Get the RSS hash */
                if (AXGMAC_GET_BITS_LE(desc->write.desc3, RX_NORMAL_DESC3, RSV))
                        mbuf->hash.rss = rte_le_to_cpu_32(desc->write.desc1);
-
+               etlt = AXGMAC_GET_BITS_LE(desc->write.desc3,
+                               RX_NORMAL_DESC3, ETLT);
+               offloads = rxq->pdata->eth_dev->data->dev_conf.rxmode.offloads;
+               if (!err || !etlt) {
+                       if (etlt == RX_CVLAN_TAG_PRESENT) {
+                               mbuf->ol_flags |= PKT_RX_VLAN;
+                               mbuf->vlan_tci =
+                                       AXGMAC_GET_BITS_LE(desc->write.desc0,
+                                                       RX_NORMAL_DESC0, OVT);
+                               if (offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
+                                       mbuf->ol_flags |= PKT_RX_VLAN_STRIPPED;
+                               else
+                                       mbuf->ol_flags &= ~PKT_RX_VLAN_STRIPPED;
+                       } else {
+                               mbuf->ol_flags &=
+                                       ~(PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED);
+                               mbuf->vlan_tci = 0;
+                       }
+               }
                /* Mbuf populate */
                mbuf->data_off = RTE_PKTMBUF_HEADROOM;
                mbuf->data_len = data_len;
@@ -492,6 +532,7 @@ int axgbe_dev_tx_queue_setup(struct rte_eth_dev *dev, 
uint16_t queue_idx,
        struct axgbe_tx_queue *txq;
        unsigned int tsize;
        const struct rte_memzone *tz;
+       uint64_t offloads;
 
        tx_desc = nb_desc;
        pdata = dev->data->dev_private;
@@ -511,7 +552,8 @@ int axgbe_dev_tx_queue_setup(struct rte_eth_dev *dev, 
uint16_t queue_idx,
        if (!txq)
                return -ENOMEM;
        txq->pdata = pdata;
-
+       offloads = tx_conf->offloads |
+               txq->pdata->eth_dev->data->dev_conf.txmode.offloads;
        txq->nb_desc = tx_desc;
        txq->free_thresh = tx_conf->tx_free_thresh ?
                tx_conf->tx_free_thresh : AXGBE_TX_FREE_THRESH;
@@ -523,7 +565,7 @@ int axgbe_dev_tx_queue_setup(struct rte_eth_dev *dev, 
uint16_t queue_idx,
        if (txq->nb_desc % txq->free_thresh != 0)
                txq->vector_disable = 1;
 
-       if (tx_conf->offloads != 0)
+       if (offloads != 0)
                txq->vector_disable = 1;
 
        /* Allocate TX ring hardware descriptors */
@@ -745,10 +787,28 @@ static int axgbe_xmit_hw(struct axgbe_tx_queue *txq,
                AXGMAC_SET_BITS_LE(desc->desc3, TX_NORMAL_DESC3, CIC, 0x1);
        rte_wmb();
 
+       if (mbuf->ol_flags & (PKT_TX_VLAN_PKT | PKT_TX_QINQ_PKT)) {
+               /* Mark it as a CONTEXT descriptor */
+               AXGMAC_SET_BITS_LE(desc->desc3, TX_CONTEXT_DESC3,
+                                 CTXT, 1);
+               /* Set the VLAN tag */
+               AXGMAC_SET_BITS_LE(desc->desc3, TX_CONTEXT_DESC3,
+                                 VT, mbuf->vlan_tci);
+               /* Indicate this descriptor contains the VLAN tag */
+               AXGMAC_SET_BITS_LE(desc->desc3, TX_CONTEXT_DESC3,
+                                         VLTV, 1);
+               AXGMAC_SET_BITS_LE(desc->desc2, TX_NORMAL_DESC2, VTIR,
+                               TX_NORMAL_DESC2_VLAN_INSERT);
+       } else {
+               AXGMAC_SET_BITS_LE(desc->desc2, TX_NORMAL_DESC2, VTIR, 0x0);
+       }
+       rte_wmb();
+
        /* Set OWN bit */
        AXGMAC_SET_BITS_LE(desc->desc3, TX_NORMAL_DESC3, OWN, 1);
        rte_wmb();
 
+
        /* Save mbuf */
        txq->sw_ring[idx] = mbuf;
        /* Update current index*/
-- 
2.25.1

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