[PATCH v4 0/8] vmxnet3 version V5 and V6

[PATCH v4 0/8] vmxnet3 version V5 and V6

[Pankaj Gupta]

v4:
    Changing the subject for [Patch 8/8] from "net/vmxnet3: fix merge error
    in initialization for rxDataRing feature" to 
    "Fixes: 046f11619567 ("net/vmxnet3: support MSI-X interrupt")"

v3: 
    adding Reviewed-by info in all the patches

v2: 
    address review comments from Andrew Rybchenko andrew.rybchenko@oktetlabs.ru

Pankaj Gupta (8):
  net/vmxnet3: add V5 support
  net/vmxnet3: implement reta query and reta update
  net/vmxnet3: add Rx queue usage count utility
  net/vmxnet3: report HW version on FW version get
  net/vmxnet3: version 6
  net/vmxnet3: advertise RETA size in device info
  net/vmxnet3: set packet type for fragmented packet
  Fixes: 046f11619567 ("net/vmxnet3: support MSI-X interrupt")

 drivers/net/vmxnet3/base/vmxnet3_defs.h |  73 ++++-
 drivers/net/vmxnet3/vmxnet3_ethdev.c    | 343 +++++++++++++++++++-----
 drivers/net/vmxnet3/vmxnet3_ethdev.h    |  15 +-
 drivers/net/vmxnet3/vmxnet3_rxtx.c      |  49 +++-
 4 files changed, 392 insertions(+), 88 deletions(-)

-- 
2.17.1

[PATCH v4 1/8] net/vmxnet3: add V5 support

[Pankaj Gupta]

Add VMXNET3 v5 support

Tested, using testpmd, for different hardware version on ESXi 7.0 Update 2.

Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
Reviewed-by: Jochen Behrens <jbehrens@vmware.com>
---
 drivers/net/vmxnet3/vmxnet3_ethdev.c | 7 +++++--
 drivers/net/vmxnet3/vmxnet3_ethdev.h | 2 ++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index d1ef1cad08..a7e1e5fef5 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -316,9 +316,12 @@ eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
 
 	/* Check h/w version compatibility with driver. */
 	ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_VRRS);
-	PMD_INIT_LOG(DEBUG, "Hardware version : %d", ver);
 
-	if (ver & (1 << VMXNET3_REV_4)) {
+	if (ver & (1 << VMXNET3_REV_5)) {
+		VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
+				       1 << VMXNET3_REV_5);
+		hw->version = VMXNET3_REV_5 + 1;
+	} else if (ver & (1 << VMXNET3_REV_4)) {
 		VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
 				       1 << VMXNET3_REV_4);
 		hw->version = VMXNET3_REV_4 + 1;
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.h b/drivers/net/vmxnet3/vmxnet3_ethdev.h
index ef858ac951..7ec3b2e1f0 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.h
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.h
@@ -124,11 +124,13 @@ struct vmxnet3_hw {
 	UPT1_RxStats          snapshot_rx_stats[VMXNET3_MAX_RX_QUEUES];
 };
 
+#define VMXNET3_REV_5		4		/* Vmxnet3 Rev. 5 */
 #define VMXNET3_REV_4		3		/* Vmxnet3 Rev. 4 */
 #define VMXNET3_REV_3		2		/* Vmxnet3 Rev. 3 */
 #define VMXNET3_REV_2		1		/* Vmxnet3 Rev. 2 */
 #define VMXNET3_REV_1		0		/* Vmxnet3 Rev. 1 */
 
+#define VMXNET3_VERSION_GE_5(hw) ((hw)->version >= VMXNET3_REV_5 + 1)
 #define VMXNET3_VERSION_GE_4(hw) ((hw)->version >= VMXNET3_REV_4 + 1)
 #define VMXNET3_VERSION_GE_3(hw) ((hw)->version >= VMXNET3_REV_3 + 1)
 #define VMXNET3_VERSION_GE_2(hw) ((hw)->version >= VMXNET3_REV_2 + 1)
-- 
2.17.1

[PATCH v4 2/8] net/vmxnet3: implement reta query and reta update

[Pankaj Gupta]

Add reta query and reta update support for VMXNET3

Tested, using testpmd, for different hardware version on ESXi 7.0 Update 2.

Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
Reviewed-by: Jochen Behrens <jbehrens@vmware.com>
---
 drivers/net/vmxnet3/vmxnet3_ethdev.c | 67 ++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)

diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index a7e1e5fef5..d5f9903946 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -95,6 +95,14 @@ static int vmxnet3_mac_addr_set(struct rte_eth_dev *dev,
 				 struct rte_ether_addr *mac_addr);
 static void vmxnet3_process_events(struct rte_eth_dev *dev);
 static void vmxnet3_interrupt_handler(void *param);
+static int
+vmxnet3_rss_reta_update(struct rte_eth_dev *dev,
+			struct rte_eth_rss_reta_entry64 *reta_conf,
+			uint16_t reta_size);
+static int
+vmxnet3_rss_reta_query(struct rte_eth_dev *dev,
+		       struct rte_eth_rss_reta_entry64 *reta_conf,
+		       uint16_t reta_size);
 static int vmxnet3_dev_rx_queue_intr_enable(struct rte_eth_dev *dev,
 						uint16_t queue_id);
 static int vmxnet3_dev_rx_queue_intr_disable(struct rte_eth_dev *dev,
@@ -137,6 +145,8 @@ static const struct eth_dev_ops vmxnet3_eth_dev_ops = {
 	.tx_queue_release     = vmxnet3_dev_tx_queue_release,
 	.rx_queue_intr_enable = vmxnet3_dev_rx_queue_intr_enable,
 	.rx_queue_intr_disable = vmxnet3_dev_rx_queue_intr_disable,
+	.reta_update          = vmxnet3_rss_reta_update,
+	.reta_query           = vmxnet3_rss_reta_query,
 };
 
 struct vmxnet3_xstats_name_off {
@@ -1696,3 +1706,60 @@ RTE_PMD_REGISTER_PCI_TABLE(net_vmxnet3, pci_id_vmxnet3_map);
 RTE_PMD_REGISTER_KMOD_DEP(net_vmxnet3, "* igb_uio | uio_pci_generic | vfio-pci");
 RTE_LOG_REGISTER_SUFFIX(vmxnet3_logtype_init, init, NOTICE);
 RTE_LOG_REGISTER_SUFFIX(vmxnet3_logtype_driver, driver, NOTICE);
+
+static int
+vmxnet3_rss_reta_update(struct rte_eth_dev *dev,
+			struct rte_eth_rss_reta_entry64 *reta_conf,
+			uint16_t reta_size)
+{
+	int i, idx, shift;
+	struct vmxnet3_hw *hw = dev->data->dev_private;
+	struct VMXNET3_RSSConf *dev_rss_conf = hw->rss_conf;
+
+	if (reta_size != dev_rss_conf->indTableSize) {
+		PMD_DRV_LOG(ERR,
+			"The size of hash lookup table configured (%d) doesn't match "
+			"the supported number (%d)",
+			reta_size, dev_rss_conf->indTableSize);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < reta_size; i++) {
+		idx = i / RTE_ETH_RETA_GROUP_SIZE;
+		shift = i % RTE_ETH_RETA_GROUP_SIZE;
+		if (reta_conf[idx].mask & RTE_BIT64(shift))
+			dev_rss_conf->indTable[i] = (uint8_t)reta_conf[idx].reta[shift];
+	}
+
+	VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
+				VMXNET3_CMD_UPDATE_RSSIDT);
+
+	return 0;
+}
+
+static int
+vmxnet3_rss_reta_query(struct rte_eth_dev *dev,
+		       struct rte_eth_rss_reta_entry64 *reta_conf,
+		       uint16_t reta_size)
+{
+	int i, idx, shift;
+	struct vmxnet3_hw *hw = dev->data->dev_private;
+	struct VMXNET3_RSSConf *dev_rss_conf = hw->rss_conf;
+
+	if (reta_size != dev_rss_conf->indTableSize) {
+		PMD_DRV_LOG(ERR,
+			"Size of requested hash lookup table (%d) doesn't "
+			"match the configured size (%d)",
+			reta_size, dev_rss_conf->indTableSize);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < reta_size; i++) {
+		idx = i / RTE_ETH_RETA_GROUP_SIZE;
+		shift = i % RTE_ETH_RETA_GROUP_SIZE;
+		if (reta_conf[idx].mask & RTE_BIT64(shift))
+			reta_conf[idx].reta[shift] = dev_rss_conf->indTable[i];
+	}
+
+	return 0;
+}
-- 
2.17.1

Re: [PATCH v4 2/8] net/vmxnet3: implement reta query and reta update

[Andrew Rybchenko]

On 5/6/22 01:00, Pankaj Gupta wrote:
> Add reta query and reta update support for VMXNET3

Please, use RETA in the summary and above line in description.

> 
> Tested, using testpmd, for different hardware version on ESXi 7.0 Update 2.
> 
> Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
> Reviewed-by: Jochen Behrens <jbehrens@vmware.com>

[PATCH v4 3/8] net/vmxnet3: add Rx queue usage count utility

[Pankaj Gupta]

Count the number of entries in the Rx queue for debugging.

Tested, using testpmd, for different hardware version on ESXi 7.0 Update 2

Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
Reviewed-by: Jochen Behrens <jbehrens@vmware.com>
---
 drivers/net/vmxnet3/vmxnet3_ethdev.c |  1 +
 drivers/net/vmxnet3/vmxnet3_ethdev.h |  3 +++
 drivers/net/vmxnet3/vmxnet3_rxtx.c   | 30 ++++++++++++++++++++++++++++
 3 files changed, 34 insertions(+)

diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index d5f9903946..2725e49ae9 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -294,6 +294,7 @@ eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
 	eth_dev->rx_pkt_burst = &vmxnet3_recv_pkts;
 	eth_dev->tx_pkt_burst = &vmxnet3_xmit_pkts;
 	eth_dev->tx_pkt_prepare = vmxnet3_prep_pkts;
+	eth_dev->rx_queue_count = vmxnet3_dev_rx_queue_count,
 	pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 
 	/* extra mbuf field is required to guess MSS */
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.h b/drivers/net/vmxnet3/vmxnet3_ethdev.h
index 7ec3b2e1f0..ceaeb66392 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.h
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.h
@@ -193,6 +193,9 @@ int  vmxnet3_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 				uint16_t nb_rx_desc, unsigned int socket_id,
 				const struct rte_eth_rxconf *rx_conf,
 				struct rte_mempool *mb_pool);
+
+uint32_t vmxnet3_dev_rx_queue_count(void *rx_queue);
+
 int  vmxnet3_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 				uint16_t nb_tx_desc, unsigned int socket_id,
 				const struct rte_eth_txconf *tx_conf);
diff --git a/drivers/net/vmxnet3/vmxnet3_rxtx.c b/drivers/net/vmxnet3/vmxnet3_rxtx.c
index d745064bc4..e15b377d8c 100644
--- a/drivers/net/vmxnet3/vmxnet3_rxtx.c
+++ b/drivers/net/vmxnet3/vmxnet3_rxtx.c
@@ -1019,6 +1019,36 @@ vmxnet3_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 	return nb_rx;
 }
 
+uint32_t
+vmxnet3_dev_rx_queue_count(void *rx_queue)
+{
+	const vmxnet3_rx_queue_t *rxq;
+	const Vmxnet3_RxCompDesc *rcd;
+	uint32_t idx, nb_rxd = 0;
+	uint8_t gen;
+
+	rxq = rx_queue;
+	if (unlikely(rxq->stopped)) {
+		PMD_RX_LOG(DEBUG, "Rx queue is stopped.");
+		return 0;
+	}
+
+	gen = rxq->comp_ring.gen;
+	idx = rxq->comp_ring.next2proc;
+	rcd = &rxq->comp_ring.base[idx].rcd;
+	while (rcd->gen == gen) {
+		if (rcd->eop)
+			++nb_rxd;
+		if (++idx == rxq->comp_ring.size) {
+			idx = 0;
+			gen ^= 1;
+		}
+		rcd = &rxq->comp_ring.base[idx].rcd;
+	}
+
+	return nb_rxd;
+}
+
 int
 vmxnet3_dev_tx_queue_setup(struct rte_eth_dev *dev,
 			   uint16_t queue_idx,
-- 
2.17.1

Re: [PATCH v4 3/8] net/vmxnet3: add Rx queue usage count utility

[Andrew Rybchenko]

On 5/6/22 01:00, Pankaj Gupta wrote:
> Count the number of entries in the Rx queue for debugging.
> 
> Tested, using testpmd, for different hardware version on ESXi 7.0 Update 2
> 
> Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
> Reviewed-by: Jochen Behrens <jbehrens@vmware.com>

[snip]

> diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
> index d5f9903946..2725e49ae9 100644
> --- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
> +++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
> @@ -294,6 +294,7 @@ eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
>   	eth_dev->rx_pkt_burst = &vmxnet3_recv_pkts;
>   	eth_dev->tx_pkt_burst = &vmxnet3_xmit_pkts;
>   	eth_dev->tx_pkt_prepare = vmxnet3_prep_pkts;
> +	eth_dev->rx_queue_count = vmxnet3_dev_rx_queue_count,

checkpatches.sh catches incorrect usage of comma instead of
semi-colon above. Please, fix.

[snip]

[PATCH v4 4/8] net/vmxnet3: report HW version on FW version get

[Pankaj Gupta]

Implement fw_version_get API for vmxnet3

Align addition order in vmxnet3_eth_dev_ops with eth_dev_ops

Tested, using testpmd, for different hardware version on
ESXi 7.0 Update 2.

Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
Reviewed-by: Jochen Behrens <jbehrens@vmware.com>
---
 drivers/net/vmxnet3/vmxnet3_ethdev.c | 35 ++++++++++++++++++++++------
 1 file changed, 28 insertions(+), 7 deletions(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index 2725e49ae9..30a0026ade 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -103,6 +103,10 @@ static int
 vmxnet3_rss_reta_query(struct rte_eth_dev *dev,
 		       struct rte_eth_rss_reta_entry64 *reta_conf,
 		       uint16_t reta_size);
+static int
+vmxnet3_hw_ver_get(struct rte_eth_dev *dev,
+		   char *fw_version, size_t fw_size);
+
 static int vmxnet3_dev_rx_queue_intr_enable(struct rte_eth_dev *dev,
 						uint16_t queue_id);
 static int vmxnet3_dev_rx_queue_intr_disable(struct rte_eth_dev *dev,
@@ -124,27 +128,28 @@ static const struct eth_dev_ops vmxnet3_eth_dev_ops = {
 	.dev_stop             = vmxnet3_dev_stop,
 	.dev_close            = vmxnet3_dev_close,
 	.dev_reset            = vmxnet3_dev_reset,
+	.link_update          = vmxnet3_dev_link_update,
 	.promiscuous_enable   = vmxnet3_dev_promiscuous_enable,
 	.promiscuous_disable  = vmxnet3_dev_promiscuous_disable,
 	.allmulticast_enable  = vmxnet3_dev_allmulticast_enable,
 	.allmulticast_disable = vmxnet3_dev_allmulticast_disable,
-	.link_update          = vmxnet3_dev_link_update,
+	.mac_addr_set         = vmxnet3_mac_addr_set,
+	.mtu_set              = vmxnet3_dev_mtu_set,
 	.stats_get            = vmxnet3_dev_stats_get,
-	.xstats_get_names     = vmxnet3_dev_xstats_get_names,
-	.xstats_get           = vmxnet3_dev_xstats_get,
 	.stats_reset          = vmxnet3_dev_stats_reset,
-	.mac_addr_set         = vmxnet3_mac_addr_set,
+	.xstats_get           = vmxnet3_dev_xstats_get,
+	.xstats_get_names     = vmxnet3_dev_xstats_get_names,
+	.fw_version_get       = vmxnet3_hw_ver_get,
 	.dev_infos_get        = vmxnet3_dev_info_get,
 	.dev_supported_ptypes_get = vmxnet3_dev_supported_ptypes_get,
-	.mtu_set              = vmxnet3_dev_mtu_set,
 	.vlan_filter_set      = vmxnet3_dev_vlan_filter_set,
 	.vlan_offload_set     = vmxnet3_dev_vlan_offload_set,
 	.rx_queue_setup       = vmxnet3_dev_rx_queue_setup,
 	.rx_queue_release     = vmxnet3_dev_rx_queue_release,
-	.tx_queue_setup       = vmxnet3_dev_tx_queue_setup,
-	.tx_queue_release     = vmxnet3_dev_tx_queue_release,
 	.rx_queue_intr_enable = vmxnet3_dev_rx_queue_intr_enable,
 	.rx_queue_intr_disable = vmxnet3_dev_rx_queue_intr_disable,
+	.tx_queue_setup       = vmxnet3_dev_tx_queue_setup,
+	.tx_queue_release     = vmxnet3_dev_tx_queue_release,
 	.reta_update          = vmxnet3_rss_reta_update,
 	.reta_query           = vmxnet3_rss_reta_query,
 };
@@ -1764,3 +1769,19 @@ vmxnet3_rss_reta_query(struct rte_eth_dev *dev,
 
 	return 0;
 }
+
+static int
+vmxnet3_hw_ver_get(struct rte_eth_dev *dev,
+		   char *fw_version, size_t fw_size)
+{
+	int ret;
+	struct vmxnet3_hw *hw = dev->data->dev_private;
+
+	ret = snprintf(fw_version, fw_size, "v%d", hw->version);
+
+	ret += 1; /* add the size of '\0' */
+	if (fw_size < (uint32_t)ret)
+		return ret;
+	else
+		return 0;
+}
-- 
2.17.1

[PATCH v4 5/8] net/vmxnet3: version 6

[Pankaj Gupta]

vmxnet3 version 6 supports some new features, including but
not limited to:
- Increased max MTU up to 9190
- Increased max number of queues, both for Rx and Tx
- Removes power-of-two limitations
- Extended interrupt structures, required implementation for
  additional number of queues

Tested, using testpmd, for different hardware version on
ESXi 7.0 Update 2.

Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
Reviewed-by: Jochen Behrens <jbehrens@vmware.com>
---
 drivers/net/vmxnet3/base/vmxnet3_defs.h |  73 ++++++--
 drivers/net/vmxnet3/vmxnet3_ethdev.c    | 223 +++++++++++++++++-------
 drivers/net/vmxnet3/vmxnet3_ethdev.h    |  10 +-
 drivers/net/vmxnet3/vmxnet3_rxtx.c      |   2 +-
 4 files changed, 229 insertions(+), 79 deletions(-)

diff --git a/drivers/net/vmxnet3/base/vmxnet3_defs.h b/drivers/net/vmxnet3/base/vmxnet3_defs.h
index 8d62b3e116..bd6695e69d 100644
--- a/drivers/net/vmxnet3/base/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/base/vmxnet3_defs.h
@@ -103,7 +103,11 @@ typedef enum {
    VMXNET3_CMD_GET_CONF_INTR,
    VMXNET3_CMD_GET_ADAPTIVE_RING_INFO,
    VMXNET3_CMD_GET_TXDATA_DESC_SIZE,
-   VMXNET3_CMD_RESERVED5,
+	VMXNET3_CMD_RESERVED5,
+	VMXNET3_CMD_RESERVED6,
+	VMXNET3_CMD_RESERVED7,
+	VMXNET3_CMD_RESERVED8,
+	VMXNET3_CMD_GET_MAX_QUEUES_CONF,
 } Vmxnet3_Cmd;
 
 /* Adaptive Ring Info Flags */
@@ -571,6 +575,24 @@ enum vmxnet3_intr_type {
 /* addition 1 for events */
 #define VMXNET3_MAX_INTRS      25
 
+/* Version 6 and later will use below macros */
+#define VMXNET3_EXT_MAX_TX_QUEUES  32
+#define VMXNET3_EXT_MAX_RX_QUEUES  32
+
+/* Version-dependent MAX RX/TX queues macro */
+#define MAX_RX_QUEUES(hw) \
+	(VMXNET3_VERSION_GE_6((hw)) ? \
+	VMXNET3_EXT_MAX_RX_QUEUES : \
+	VMXNET3_MAX_RX_QUEUES)
+#define MAX_TX_QUEUES(hw) \
+	(VMXNET3_VERSION_GE_6((hw)) ? \
+	VMXNET3_EXT_MAX_TX_QUEUES : \
+	VMXNET3_MAX_TX_QUEUES)
+
+/* addition 1 for events */
+#define VMXNET3_EXT_MAX_INTRS      65
+#define VMXNET3_FIRST_SET_INTRS    64
+
 /* value of intrCtrl */
 #define VMXNET3_IC_DISABLE_ALL  0x1   /* bit 0 */
 
@@ -587,6 +609,21 @@ struct Vmxnet3_IntrConf {
 #include "vmware_pack_end.h"
 Vmxnet3_IntrConf;
 
+typedef
+#include "vmware_pack_begin.h"
+struct Vmxnet3_IntrConfExt {
+	uint8    autoMask;
+	uint8    numIntrs;      /* # of interrupts */
+	uint8    eventIntrIdx;
+	uint8    reserved;
+	__le32   intrCtrl;
+	__le32   reserved1;
+	uint8    modLevels[VMXNET3_EXT_MAX_INTRS]; /* moderation level for each intr */
+	uint8    reserved2[3];
+}
+#include "vmware_pack_end.h"
+Vmxnet3_IntrConfExt;
+
 /* one bit per VLAN ID, the size is in the units of uint32 */
 #define VMXNET3_VFT_SIZE  (4096 / (sizeof(uint32) * 8))
 
@@ -692,6 +729,15 @@ struct Vmxnet3_DSDevRead {
 #include "vmware_pack_end.h"
 Vmxnet3_DSDevRead;
 
+typedef
+#include "vmware_pack_begin.h"
+struct Vmxnet3_DSDevReadExt {
+	/* read-only region for device, read by dev in response to a SET cmd */
+	struct Vmxnet3_IntrConfExt    intrConfExt;
+}
+#include "vmware_pack_end.h"
+Vmxnet3_DSDevReadExt;
+
 typedef
 #include "vmware_pack_begin.h"
 struct Vmxnet3_TxQueueDesc {
@@ -778,18 +824,18 @@ Vmxnet3_CmdInfo;
 typedef
 #include "vmware_pack_begin.h"
 struct Vmxnet3_DriverShared {
-   __le32               magic;
-   __le32               pad; /* make devRead start at 64-bit boundaries */
-   Vmxnet3_DSDevRead    devRead;
-   __le32               ecr;
-   __le32               reserved;
-
-   union {
-      __le32            reserved1[4];
-      Vmxnet3_CmdInfo   cmdInfo; /* only valid in the context of executing the
-				  * relevant command
-				  */
-   } cu;
+	__le32               magic;
+	__le32               size;    /* size of DriverShared */
+	Vmxnet3_DSDevRead    devRead;
+	__le32               ecr;
+	__le32               reserved;
+
+	union {
+		__le32			reserved1[4];
+		/* only valid in the context of executing the relevant command */
+		Vmxnet3_CmdInfo	cmdInfo;
+	} cu;
+	struct Vmxnet3_DSDevReadExt   devReadExt;
 }
 #include "vmware_pack_end.h"
 Vmxnet3_DriverShared;
@@ -821,6 +867,7 @@ do {\
    ((vfTable[vid >> 5] & (1 << (vid & 31))) != 0)
 
 #define VMXNET3_MAX_MTU     9000
+#define VMXNET3_V6_MAX_MTU  9190
 #define VMXNET3_MIN_MTU     60
 
 #define VMXNET3_LINK_UP         (10000 << 16 | 1)    // 10 Gbps, up
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index 30a0026ade..357fec09af 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -222,24 +222,20 @@ vmxnet3_disable_intr(struct vmxnet3_hw *hw, unsigned int intr_idx)
 }
 
 /*
- * Enable all intrs used by the device
+ * Simple helper to get intrCtrl and eventIntrIdx based on config and hw version
  */
 static void
-vmxnet3_enable_all_intrs(struct vmxnet3_hw *hw)
+vmxnet3_get_intr_ctrl_ev(struct vmxnet3_hw *hw,
+			 uint8 **out_eventIntrIdx,
+			 uint32 **out_intrCtrl)
 {
-	Vmxnet3_DSDevRead *devRead = &hw->shared->devRead;
-
-	PMD_INIT_FUNC_TRACE();
 
-	devRead->intrConf.intrCtrl &= rte_cpu_to_le_32(~VMXNET3_IC_DISABLE_ALL);
-
-	if (hw->intr.lsc_only) {
-		vmxnet3_enable_intr(hw, devRead->intrConf.eventIntrIdx);
+	if (VMXNET3_VERSION_GE_6(hw) && hw->queuesExtEnabled) {
+		*out_eventIntrIdx = &hw->shared->devReadExt.intrConfExt.eventIntrIdx;
+		*out_intrCtrl = &hw->shared->devReadExt.intrConfExt.intrCtrl;
 	} else {
-		int i;
-
-		for (i = 0; i < hw->intr.num_intrs; i++)
-			vmxnet3_enable_intr(hw, i);
+		*out_eventIntrIdx = &hw->shared->devRead.intrConf.eventIntrIdx;
+		*out_intrCtrl = &hw->shared->devRead.intrConf.intrCtrl;
 	}
 }
 
@@ -250,15 +246,42 @@ static void
 vmxnet3_disable_all_intrs(struct vmxnet3_hw *hw)
 {
 	int i;
+	uint8 *eventIntrIdx;
+	uint32 *intrCtrl;
 
 	PMD_INIT_FUNC_TRACE();
+	vmxnet3_get_intr_ctrl_ev(hw, &eventIntrIdx, &intrCtrl);
+
+	*intrCtrl |= rte_cpu_to_le_32(VMXNET3_IC_DISABLE_ALL);
 
-	hw->shared->devRead.intrConf.intrCtrl |=
-		rte_cpu_to_le_32(VMXNET3_IC_DISABLE_ALL);
-	for (i = 0; i < hw->num_intrs; i++)
+	for (i = 0; i < hw->intr.num_intrs; i++)
 		vmxnet3_disable_intr(hw, i);
 }
 
+/*
+ * Enable all intrs used by the device
+ */
+static void
+vmxnet3_enable_all_intrs(struct vmxnet3_hw *hw)
+{
+	uint8 *eventIntrIdx;
+	uint32 *intrCtrl;
+
+	PMD_INIT_FUNC_TRACE();
+	vmxnet3_get_intr_ctrl_ev(hw, &eventIntrIdx, &intrCtrl);
+
+	*intrCtrl &= rte_cpu_to_le_32(~VMXNET3_IC_DISABLE_ALL);
+
+	if (hw->intr.lsc_only) {
+		vmxnet3_enable_intr(hw, *eventIntrIdx);
+	} else {
+		int i;
+
+		for (i = 0; i < hw->intr.num_intrs; i++)
+			vmxnet3_enable_intr(hw, i);
+	}
+}
+
 /*
  * Gets tx data ring descriptor size.
  */
@@ -333,7 +356,11 @@ eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
 	/* Check h/w version compatibility with driver. */
 	ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_VRRS);
 
-	if (ver & (1 << VMXNET3_REV_5)) {
+	if (ver & (1 << VMXNET3_REV_6)) {
+		VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
+				       1 << VMXNET3_REV_6);
+		hw->version = VMXNET3_REV_6 + 1;
+	} else if (ver & (1 << VMXNET3_REV_5)) {
 		VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
 				       1 << VMXNET3_REV_5);
 		hw->version = VMXNET3_REV_5 + 1;
@@ -508,15 +535,22 @@ vmxnet3_dev_configure(struct rte_eth_dev *dev)
 	if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
 		dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
 
-	if (dev->data->nb_tx_queues > VMXNET3_MAX_TX_QUEUES ||
-	    dev->data->nb_rx_queues > VMXNET3_MAX_RX_QUEUES) {
-		PMD_INIT_LOG(ERR, "ERROR: Number of queues not supported");
-		return -EINVAL;
+	if (!VMXNET3_VERSION_GE_6(hw)) {
+		if (!rte_is_power_of_2(dev->data->nb_rx_queues)) {
+			PMD_INIT_LOG(ERR,
+				     "ERROR: Number of rx queues not power of 2");
+			return -EINVAL;
+		}
 	}
 
-	if (!rte_is_power_of_2(dev->data->nb_rx_queues)) {
-		PMD_INIT_LOG(ERR, "ERROR: Number of rx queues not power of 2");
-		return -EINVAL;
+	/* At this point, the number of queues requested has already
+	 * been validated against dev_infos max queues by EAL
+	 */
+	if (dev->data->nb_rx_queues > VMXNET3_MAX_RX_QUEUES ||
+	    dev->data->nb_tx_queues > VMXNET3_MAX_TX_QUEUES) {
+		hw->queuesExtEnabled = 1;
+	} else {
+		hw->queuesExtEnabled = 0;
 	}
 
 	size = dev->data->nb_rx_queues * sizeof(struct Vmxnet3_TxQueueDesc) +
@@ -627,9 +661,9 @@ vmxnet3_configure_msix(struct rte_eth_dev *dev)
 		return -1;
 
 	intr_vector = dev->data->nb_rx_queues;
-	if (intr_vector > VMXNET3_MAX_RX_QUEUES) {
+	if (intr_vector > MAX_RX_QUEUES(hw)) {
 		PMD_INIT_LOG(ERR, "At most %d intr queues supported",
-			     VMXNET3_MAX_RX_QUEUES);
+			     MAX_RX_QUEUES(hw));
 		return -ENOTSUP;
 	}
 
@@ -777,6 +811,7 @@ vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 	uint32_t mtu = dev->data->mtu;
 	Vmxnet3_DriverShared *shared = hw->shared;
 	Vmxnet3_DSDevRead *devRead = &shared->devRead;
+	struct Vmxnet3_DSDevReadExt *devReadExt = &shared->devReadExt;
 	uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
 	uint32_t i;
 	int ret;
@@ -853,13 +888,27 @@ vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 	}
 
 	/* intr settings */
-	devRead->intrConf.autoMask = hw->intr.mask_mode == VMXNET3_IMM_AUTO;
-	devRead->intrConf.numIntrs = hw->intr.num_intrs;
-	for (i = 0; i < hw->intr.num_intrs; i++)
-		devRead->intrConf.modLevels[i] = hw->intr.mod_levels[i];
+	if (VMXNET3_VERSION_GE_6(hw) && hw->queuesExtEnabled) {
+		devReadExt->intrConfExt.autoMask = hw->intr.mask_mode ==
+						   VMXNET3_IMM_AUTO;
+		devReadExt->intrConfExt.numIntrs = hw->intr.num_intrs;
+		for (i = 0; i < hw->intr.num_intrs; i++)
+			devReadExt->intrConfExt.modLevels[i] =
+				hw->intr.mod_levels[i];
+
+		devReadExt->intrConfExt.eventIntrIdx = hw->intr.event_intr_idx;
+		devReadExt->intrConfExt.intrCtrl |=
+			rte_cpu_to_le_32(VMXNET3_IC_DISABLE_ALL);
+	} else {
+		devRead->intrConf.autoMask = hw->intr.mask_mode ==
+					     VMXNET3_IMM_AUTO;
+		devRead->intrConf.numIntrs = hw->intr.num_intrs;
+		for (i = 0; i < hw->intr.num_intrs; i++)
+			devRead->intrConf.modLevels[i] = hw->intr.mod_levels[i];
 
-	devRead->intrConf.eventIntrIdx = hw->intr.event_intr_idx;
-	devRead->intrConf.intrCtrl |= rte_cpu_to_le_32(VMXNET3_IC_DISABLE_ALL);
+		devRead->intrConf.eventIntrIdx = hw->intr.event_intr_idx;
+		devRead->intrConf.intrCtrl |= rte_cpu_to_le_32(VMXNET3_IC_DISABLE_ALL);
+	}
 
 	/* RxMode set to 0 of VMXNET3_RXM_xxx */
 	devRead->rxFilterConf.rxMode = 0;
@@ -937,18 +986,24 @@ vmxnet3_dev_start(struct rte_eth_dev *dev)
 		return -EINVAL;
 	}
 
-	/* Setup memory region for rx buffers */
-	ret = vmxnet3_dev_setup_memreg(dev);
-	if (ret == 0) {
-		VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
-				       VMXNET3_CMD_REGISTER_MEMREGS);
-		ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
-		if (ret != 0)
-			PMD_INIT_LOG(DEBUG,
-				     "Failed in setup memory region cmd\n");
-		ret = 0;
+	/* Check memregs restrictions first */
+	if (dev->data->nb_rx_queues <= VMXNET3_MAX_RX_QUEUES &&
+	    dev->data->nb_tx_queues <= VMXNET3_MAX_TX_QUEUES) {
+		ret = vmxnet3_dev_setup_memreg(dev);
+		if (ret == 0) {
+			VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
+					VMXNET3_CMD_REGISTER_MEMREGS);
+			ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
+			if (ret != 0)
+				PMD_INIT_LOG(DEBUG,
+					"Failed in setup memory region cmd\n");
+			ret = 0;
+		} else {
+			PMD_INIT_LOG(DEBUG, "Failed to setup memory region\n");
+		}
 	} else {
-		PMD_INIT_LOG(DEBUG, "Failed to setup memory region\n");
+		PMD_INIT_LOG(WARNING, "Memregs can't init (rx: %d, tx: %d)",
+			     dev->data->nb_rx_queues, dev->data->nb_tx_queues);
 	}
 
 	if (VMXNET3_VERSION_GE_4(hw) &&
@@ -1203,8 +1258,6 @@ vmxnet3_hw_stats_save(struct vmxnet3_hw *hw)
 
 	VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 
-	RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
-
 	for (i = 0; i < hw->num_tx_queues; i++)
 		vmxnet3_hw_tx_stats_get(hw, i, &hw->saved_tx_stats[i]);
 	for (i = 0; i < hw->num_rx_queues; i++)
@@ -1306,7 +1359,6 @@ vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 
 	VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 
-	RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
 	for (i = 0; i < hw->num_tx_queues; i++) {
 		vmxnet3_tx_stats_get(hw, i, &txStats);
 
@@ -1323,7 +1375,6 @@ vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 		stats->oerrors += txStats.pktsTxError + txStats.pktsTxDiscard;
 	}
 
-	RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_RX_QUEUES);
 	for (i = 0; i < hw->num_rx_queues; i++) {
 		vmxnet3_rx_stats_get(hw, i, &rxStats);
 
@@ -1377,9 +1428,30 @@ vmxnet3_dev_info_get(struct rte_eth_dev *dev,
 		     struct rte_eth_dev_info *dev_info)
 {
 	struct vmxnet3_hw *hw = dev->data->dev_private;
+	int queues = 0;
+
+	if (VMXNET3_VERSION_GE_6(hw)) {
+		VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
+				       VMXNET3_CMD_GET_MAX_QUEUES_CONF);
+		queues = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
+
+		if (queues > 0) {
+#ifndef MIN
+#define MIN(x, y) (((x) < (y)) ? (x) : (y))
+#endif
+			dev_info->max_rx_queues =
+			  MIN(VMXNET3_EXT_MAX_RX_QUEUES, ((queues >> 8) & 0xff));
+			dev_info->max_tx_queues =
+			  MIN(VMXNET3_EXT_MAX_TX_QUEUES, (queues & 0xff));
+		} else {
+			dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
+			dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
+		}
+	} else {
+		dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
+		dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
+	}
 
-	dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
-	dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
 	dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
 	dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
 	dev_info->min_mtu = VMXNET3_MIN_MTU;
@@ -1430,24 +1502,50 @@ vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 }
 
 static int
-vmxnet3_dev_mtu_set(struct rte_eth_dev *dev, __rte_unused uint16_t mtu)
+vmxnet3_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
 {
-	if (dev->data->dev_started) {
-		PMD_DRV_LOG(ERR, "Port %d must be stopped to configure MTU",
-			    dev->data->port_id);
-		return -EBUSY;
-	}
+	struct vmxnet3_hw *hw = dev->data->dev_private;
 
+	rte_ether_addr_copy(mac_addr, (struct rte_ether_addr *)(hw->perm_addr));
+	vmxnet3_write_mac(hw, mac_addr->addr_bytes);
 	return 0;
 }
 
 static int
-vmxnet3_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
+vmxnet3_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 {
 	struct vmxnet3_hw *hw = dev->data->dev_private;
+	uint32_t frame_size = mtu + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + 4;
+
+	if (mtu < VMXNET3_MIN_MTU)
+		return -EINVAL;
+
+	if (VMXNET3_VERSION_GE_6(hw)) {
+		if (mtu > VMXNET3_V6_MAX_MTU)
+			return -EINVAL;
+	} else {
+		if (mtu > VMXNET3_MAX_MTU) {
+			PMD_DRV_LOG(ERR, "MTU %d too large in device version v%d",
+				    mtu, hw->version);
+			return -EINVAL;
+		}
+	}
+
+	dev->data->mtu = mtu;
+	/* update max frame size */
+	dev->data->dev_conf.rxmode.mtu = frame_size;
+
+	if (dev->data->dev_started == 0)
+		return 0;
+
+    /* changing mtu for vmxnet3 pmd does not require a restart
+     * as it does not need to repopulate the rx rings to support
+     * different mtu size.  We stop and restart the device here
+     * just to pass the mtu info to the backend.
+     */
+	vmxnet3_dev_stop(dev);
+	vmxnet3_dev_start(dev);
 
-	rte_ether_addr_copy(mac_addr, (struct rte_ether_addr *)(hw->perm_addr));
-	vmxnet3_write_mac(hw, mac_addr->addr_bytes);
 	return 0;
 }
 
@@ -1668,11 +1766,14 @@ vmxnet3_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *dev = param;
 	struct vmxnet3_hw *hw = dev->data->dev_private;
-	Vmxnet3_DSDevRead *devRead = &hw->shared->devRead;
 	uint32_t events;
+	uint8 *eventIntrIdx;
+	uint32 *intrCtrl;
 
 	PMD_INIT_FUNC_TRACE();
-	vmxnet3_disable_intr(hw, devRead->intrConf.eventIntrIdx);
+
+	vmxnet3_get_intr_ctrl_ev(hw, &eventIntrIdx, &intrCtrl);
+	vmxnet3_disable_intr(hw, *eventIntrIdx);
 
 	events = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_ECR);
 	if (events == 0)
@@ -1681,7 +1782,7 @@ vmxnet3_interrupt_handler(void *param)
 	RTE_LOG(DEBUG, PMD, "Reading events: 0x%X", events);
 	vmxnet3_process_events(dev);
 done:
-	vmxnet3_enable_intr(hw, devRead->intrConf.eventIntrIdx);
+	vmxnet3_enable_intr(hw, *eventIntrIdx);
 }
 
 static int
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.h b/drivers/net/vmxnet3/vmxnet3_ethdev.h
index ceaeb66392..5a303717b1 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.h
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.h
@@ -70,7 +70,7 @@ struct vmxnet3_intr {
 	enum vmxnet3_intr_type      type; /* MSI-X, MSI, or INTx? */
 	uint8_t num_intrs;                /* # of intr vectors */
 	uint8_t event_intr_idx;           /* idx of the intr vector for event */
-	uint8_t mod_levels[VMXNET3_MAX_MSIX_VECT]; /* moderation level */
+	uint8_t mod_levels[VMXNET3_EXT_MAX_INTRS]; /* moderation level */
 	bool lsc_only;                    /* no Rx queue interrupt */
 };
 
@@ -108,6 +108,7 @@ struct vmxnet3_hw {
 	uint64_t              queueDescPA;
 	uint16_t              queue_desc_len;
 	uint16_t              mtu;
+	bool                  queuesExtEnabled;
 
 	VMXNET3_RSSConf       *rss_conf;
 	uint64_t              rss_confPA;
@@ -117,19 +118,20 @@ struct vmxnet3_hw {
 	Vmxnet3_MemRegs	      *memRegs;
 	uint64_t	      memRegsPA;
 #define VMXNET3_VFT_TABLE_SIZE     (VMXNET3_VFT_SIZE * sizeof(uint32_t))
-	UPT1_TxStats	      saved_tx_stats[VMXNET3_MAX_TX_QUEUES];
-	UPT1_RxStats	      saved_rx_stats[VMXNET3_MAX_RX_QUEUES];
-
+	UPT1_TxStats	      saved_tx_stats[VMXNET3_EXT_MAX_TX_QUEUES];
+	UPT1_RxStats	      saved_rx_stats[VMXNET3_EXT_MAX_RX_QUEUES];
 	UPT1_TxStats          snapshot_tx_stats[VMXNET3_MAX_TX_QUEUES];
 	UPT1_RxStats          snapshot_rx_stats[VMXNET3_MAX_RX_QUEUES];
 };
 
+#define VMXNET3_REV_6		5		/* Vmxnet3 Rev. 6 */
 #define VMXNET3_REV_5		4		/* Vmxnet3 Rev. 5 */
 #define VMXNET3_REV_4		3		/* Vmxnet3 Rev. 4 */
 #define VMXNET3_REV_3		2		/* Vmxnet3 Rev. 3 */
 #define VMXNET3_REV_2		1		/* Vmxnet3 Rev. 2 */
 #define VMXNET3_REV_1		0		/* Vmxnet3 Rev. 1 */
 
+#define VMXNET3_VERSION_GE_6(hw) ((hw)->version >= VMXNET3_REV_6 + 1)
 #define VMXNET3_VERSION_GE_5(hw) ((hw)->version >= VMXNET3_REV_5 + 1)
 #define VMXNET3_VERSION_GE_4(hw) ((hw)->version >= VMXNET3_REV_4 + 1)
 #define VMXNET3_VERSION_GE_3(hw) ((hw)->version >= VMXNET3_REV_3 + 1)
diff --git a/drivers/net/vmxnet3/vmxnet3_rxtx.c b/drivers/net/vmxnet3/vmxnet3_rxtx.c
index e15b377d8c..c94e3762e6 100644
--- a/drivers/net/vmxnet3/vmxnet3_rxtx.c
+++ b/drivers/net/vmxnet3/vmxnet3_rxtx.c
@@ -1400,7 +1400,7 @@ vmxnet3_rss_configure(struct rte_eth_dev *dev)
 	/* loading hashKeySize */
 	dev_rss_conf->hashKeySize = VMXNET3_RSS_MAX_KEY_SIZE;
 	/* loading indTableSize: Must not exceed VMXNET3_RSS_MAX_IND_TABLE_SIZE (128)*/
-	dev_rss_conf->indTableSize = (uint16_t)(hw->num_rx_queues * 4);
+	dev_rss_conf->indTableSize = (uint16_t)((MAX_RX_QUEUES(hw)) * 4);
 
 	if (port_rss_conf->rss_key == NULL) {
 		/* Default hash key */
-- 
2.17.1

Re: [PATCH v4 5/8] net/vmxnet3: version 6

[Andrew Rybchenko]

On 5/6/22 01:00, Pankaj Gupta wrote:
> vmxnet3 version 6 supports some new features, including but
> not limited to:
> - Increased max MTU up to 9190
> - Increased max number of queues, both for Rx and Tx
> - Removes power-of-two limitations
> - Extended interrupt structures, required implementation for
>    additional number of queues
> 
> Tested, using testpmd, for different hardware version on
> ESXi 7.0 Update 2.
> 
> Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
> Reviewed-by: Jochen Behrens <jbehrens@vmware.com>

[snip]

> @@ -1377,9 +1428,30 @@ vmxnet3_dev_info_get(struct rte_eth_dev *dev,
>   		     struct rte_eth_dev_info *dev_info)
>   {
>   	struct vmxnet3_hw *hw = dev->data->dev_private;
> +	int queues = 0;
> +
> +	if (VMXNET3_VERSION_GE_6(hw)) {
> +		VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
> +				       VMXNET3_CMD_GET_MAX_QUEUES_CONF);
> +		queues = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
> +
> +		if (queues > 0) {
> +#ifndef MIN
> +#define MIN(x, y) (((x) < (y)) ? (x) : (y))
> +#endif

checkpatches.sh produces a warning here. Can we use RTE_MIN()
instead below?

> +			dev_info->max_rx_queues =
> +			  MIN(VMXNET3_EXT_MAX_RX_QUEUES, ((queues >> 8) & 0xff));
> +			dev_info->max_tx_queues =
> +			  MIN(VMXNET3_EXT_MAX_TX_QUEUES, (queues & 0xff));
> +		} else {
> +			dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
> +			dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
> +		}
> +	} else {
> +		dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
> +		dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
> +	}
>   
> -	dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
> -	dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
>   	dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
>   	dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
>   	dev_info->min_mtu = VMXNET3_MIN_MTU;

[snip]

[PATCH v4 6/8] net/vmxnet3: advertise RETA size in device info

[Pankaj Gupta]

Currently the driver assumes that the size of the reta table is
four times the number of Rx queues at multiple places. However,
it sets it to four times the maximum number of queues (4 * 32 = 128)
when it first initializes the device. Change the other uses to use
the stored value, not the assumed default.

Tested, using testpmd, for different hardware version on
ESXi 7.0 Update 2.

Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
Reviewed-by: Jochen Behrens <jbehrens@vmware.com>
---
 drivers/net/vmxnet3/vmxnet3_ethdev.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index 357fec09af..d3148dcec5 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -1483,7 +1483,12 @@ vmxnet3_dev_info_get(struct rte_eth_dev *dev,
 	dev_info->rx_queue_offload_capa = 0;
 	dev_info->tx_offload_capa = VMXNET3_TX_OFFLOAD_CAP;
 	dev_info->tx_queue_offload_capa = 0;
-
+	if (hw->rss_conf == NULL) {
+		/* RSS not configured */
+		dev_info->reta_size = 0;
+	} else {
+		dev_info->reta_size = hw->rss_conf->indTableSize;
+	}
 	return 0;
 }
 
-- 
2.17.1

[PATCH v4 7/8] net/vmxnet3: set packet type for fragmented packet

[Pankaj Gupta]

The packet type is set even if it is a fragmented packet

Tested, using testpmd, for different hardware versions on
ESXi 7.0 Update 2.

Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
Reviewed-by: Jochen Behrens <jbehrens@vmware.com>
---
 drivers/net/vmxnet3/vmxnet3_rxtx.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/net/vmxnet3/vmxnet3_rxtx.c b/drivers/net/vmxnet3/vmxnet3_rxtx.c
index c94e3762e6..a875ffec07 100644
--- a/drivers/net/vmxnet3/vmxnet3_rxtx.c
+++ b/drivers/net/vmxnet3/vmxnet3_rxtx.c
@@ -759,6 +759,23 @@ vmxnet3_rx_offload(struct vmxnet3_hw *hw, const Vmxnet3_RxCompDesc *rcd,
 		/* Check packet type, checksum errors, etc. */
 		if (rcd->cnc) {
 			ol_flags |= RTE_MBUF_F_RX_L4_CKSUM_UNKNOWN;
+
+			if (rcd->v4) {
+				packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
+				if (rcd->tcp)
+					packet_type |= RTE_PTYPE_L4_TCP;
+				else if (rcd->udp)
+					packet_type |= RTE_PTYPE_L4_UDP;
+			} else if (rcd->v6) {
+				packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
+				if (rcd->tcp)
+					packet_type |= RTE_PTYPE_L4_TCP;
+				else if (rcd->udp)
+					packet_type |= RTE_PTYPE_L4_UDP;
+			} else {
+				packet_type |= RTE_PTYPE_UNKNOWN;
+			}
+
 		} else {
 			if (rcd->v4) {
 				packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
-- 
2.17.1

[PATCH v4 8/8] Fixes: 046f11619567 ("net/vmxnet3: support MSI-X interrupt")

[Pankaj Gupta]

Fix merge error in initialization for rxDataRing feature.

Tested, using testpmd, for different hardware version on ESXi 7.0 Update 2.

Signed-off-by: Pankaj Gupta <pagupta@vmware.com>
Reviewed-by: Jochen Behrens <jbehrens@vmware.com>
---
 drivers/net/vmxnet3/vmxnet3_ethdev.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index d3148dcec5..fbfe33e22c 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -876,6 +876,11 @@ vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 		rqd->conf.rxRingSize[1]   = rxq->cmd_ring[1].size;
 		rqd->conf.compRingSize    = rxq->comp_ring.size;
 
+		if (VMXNET3_VERSION_GE_3(hw)) {
+			rqd->conf.rxDataRingBasePA = rxq->data_ring.basePA;
+			rqd->conf.rxDataRingDescSize = rxq->data_desc_size;
+		}
+
 		if (hw->intr.lsc_only)
 			rqd->conf.intrIdx = 1;
 		else
-- 
2.17.1