[dpdk-dev] [PATCH 0/2] Enable DCB in SRIOV mode for ixgbe driver

[dpdk-dev] [PATCH 0/2] Enable DCB in SRIOV mode for ixgbe driver

[Michal Jastrzebski]

From: Pawel Wodkowski <pawelx.wodkowski@intel.com>

Hi,
this patchset enables DCB in SRIOV (ETH_MQ_RX_VMDQ_DCB and ETH_MQ_TX_VMDQ_DCB)
for each VF and PF for ixgbe driver.

As a side effect this allow to use multiple queues for TX in VF (8 if there is
16 or less VFs or 4 if there is 32 or less VFs) when PFC is not enabled.


Pawel Wodkowski (2):
  pmd: add DCB for VF for ixgbe
  testpmd: fix dcb in vt mode

 app/test-pmd/cmdline.c              |    4 +-
 app/test-pmd/testpmd.c              |   39 ++++++++++----
 app/test-pmd/testpmd.h              |   10 ----
 lib/librte_ether/rte_ethdev.c       |   84 +++++++++++++++++++++---------
 lib/librte_ether/rte_ethdev.h       |    5 +-
 lib/librte_pmd_e1000/igb_pf.c       |    3 +-
 lib/librte_pmd_ixgbe/ixgbe_ethdev.c |   10 ++--
 lib/librte_pmd_ixgbe/ixgbe_ethdev.h |    1 +
 lib/librte_pmd_ixgbe/ixgbe_pf.c     |   98 ++++++++++++++++++++++++++++++-----
 lib/librte_pmd_ixgbe/ixgbe_rxtx.c   |    7 ++-
 10 files changed, 190 insertions(+), 71 deletions(-)

-- 
1.7.9.5

[dpdk-dev] [PATCH 1/2] pmd: add DCB for VF for ixgbe

[Michal Jastrzebski]

From: Pawel Wodkowski <pawelx.wodkowski@intel.com>

This patch add support for DCB in SRIOV mode. When no PFC
is enabled this feature might be used as multiple queues
(up to 8 or 4) for VF.

It incorporate following modifications:
 - Allow zero rx/tx queues to be passed to rte_eth_dev_configure().
   Rationale:
   in SRIOV mode PF use first free VF to RX/TX. If VF count
   is 16 or 32 all recources are assigned to VFs so PF can
   be used only for configuration.
 - split nb_q_per_pool to nb_rx_q_per_pool and nb_tx_q_per_pool
   Rationale:
   rx and tx number of queue might be different if RX and TX are
   configured in different mode. This allow to inform VF about
   proper number of queues.
 - extern mailbox API for DCB mode

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 lib/librte_ether/rte_ethdev.c       |   84 +++++++++++++++++++++---------
 lib/librte_ether/rte_ethdev.h       |    5 +-
 lib/librte_pmd_e1000/igb_pf.c       |    3 +-
 lib/librte_pmd_ixgbe/ixgbe_ethdev.c |   10 ++--
 lib/librte_pmd_ixgbe/ixgbe_ethdev.h |    1 +
 lib/librte_pmd_ixgbe/ixgbe_pf.c     |   98 ++++++++++++++++++++++++++++++-----
 lib/librte_pmd_ixgbe/ixgbe_rxtx.c   |    7 ++-
 7 files changed, 159 insertions(+), 49 deletions(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 95f2ceb..4c1a494 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -333,7 +333,7 @@ rte_eth_dev_rx_queue_config(struct rte_eth_dev *dev, uint16_t nb_queues)
 		dev->data->rx_queues = rte_zmalloc("ethdev->rx_queues",
 				sizeof(dev->data->rx_queues[0]) * nb_queues,
 				RTE_CACHE_LINE_SIZE);
-		if (dev->data->rx_queues == NULL) {
+		if (dev->data->rx_queues == NULL && nb_queues > 0) {
 			dev->data->nb_rx_queues = 0;
 			return -(ENOMEM);
 		}
@@ -475,7 +475,7 @@ rte_eth_dev_tx_queue_config(struct rte_eth_dev *dev, uint16_t nb_queues)
 		dev->data->tx_queues = rte_zmalloc("ethdev->tx_queues",
 				sizeof(dev->data->tx_queues[0]) * nb_queues,
 				RTE_CACHE_LINE_SIZE);
-		if (dev->data->tx_queues == NULL) {
+		if (dev->data->tx_queues == NULL && nb_queues > 0) {
 			dev->data->nb_tx_queues = 0;
 			return -(ENOMEM);
 		}
@@ -507,6 +507,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		      const struct rte_eth_conf *dev_conf)
 {
 	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+	struct rte_eth_dev_info dev_info;
 
 	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
 		/* check multi-queue mode */
@@ -524,11 +525,33 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 			return (-EINVAL);
 		}
 
+		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) &&
+			(dev_conf->txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB)) {
+			enum rte_eth_nb_pools rx_pools =
+						dev_conf->rx_adv_conf.vmdq_dcb_conf.nb_queue_pools;
+			enum rte_eth_nb_pools tx_pools =
+						dev_conf->tx_adv_conf.vmdq_dcb_tx_conf.nb_queue_pools;
+
+			if (rx_pools != tx_pools) {
+				/* Only equal number of pools is supported when
+				 * DCB+VMDq in SRIOV */
+				PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
+						" SRIOV active, DCB+VMDQ mode, "
+						"number of rx and tx pools is not eqaul\n",
+						port_id);
+				return (-EINVAL);
+			}
+		}
+
+		uint16_t nb_rx_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool;
+		uint16_t nb_tx_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool;
+
 		switch (dev_conf->rxmode.mq_mode) {
-		case ETH_MQ_RX_VMDQ_RSS:
 		case ETH_MQ_RX_VMDQ_DCB:
+			break;
+		case ETH_MQ_RX_VMDQ_RSS:
 		case ETH_MQ_RX_VMDQ_DCB_RSS:
-			/* DCB/RSS VMDQ in SRIOV mode, not implement yet */
+			/* RSS, DCB+RSS VMDQ in SRIOV mode, not implement yet */
 			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
 					" SRIOV active, "
 					"unsupported VMDQ mq_mode rx %u\n",
@@ -537,37 +560,32 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		default: /* ETH_MQ_RX_VMDQ_ONLY or ETH_MQ_RX_NONE */
 			/* if nothing mq mode configure, use default scheme */
 			dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_ONLY;
-			if (RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool > 1)
-				RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = 1;
+			if (nb_rx_q_per_pool > 1)
+				nb_rx_q_per_pool = 1;
 			break;
 		}
 
 		switch (dev_conf->txmode.mq_mode) {
-		case ETH_MQ_TX_VMDQ_DCB:
-			/* DCB VMDQ in SRIOV mode, not implement yet */
-			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
-					" SRIOV active, "
-					"unsupported VMDQ mq_mode tx %u\n",
-					port_id, dev_conf->txmode.mq_mode);
-			return (-EINVAL);
+		case ETH_MQ_TX_VMDQ_DCB: /* DCB VMDQ in SRIOV mode*/
+			break;
 		default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
 			/* if nothing mq mode configure, use default scheme */
 			dev->data->dev_conf.txmode.mq_mode = ETH_MQ_TX_VMDQ_ONLY;
-			if (RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool > 1)
-				RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = 1;
+			if (nb_tx_q_per_pool > 1)
+				nb_tx_q_per_pool = 1;
 			break;
 		}
 
 		/* check valid queue number */
-		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool) ||
-		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool)) {
+		if (nb_rx_q > nb_rx_q_per_pool || nb_tx_q > nb_tx_q_per_pool) {
 			PMD_DEBUG_TRACE("ethdev port_id=%d SRIOV active, "
-				    "queue number must less equal to %d\n",
-					port_id, RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool);
+				    "rx/tx queue number must less equal to %d/%d\n",
+					port_id, RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool,
+					RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool);
 			return (-EINVAL);
 		}
 	} else {
-		/* For vmdb+dcb mode check our configuration before we go further */
+		/* For vmdq+dcb mode check our configuration before we go further */
 		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) {
 			const struct rte_eth_vmdq_dcb_conf *conf;
 
@@ -606,11 +624,20 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 			}
 		}
 
+		/* For DCB we need to obtain maximum number of queues dinamically,
+		 * as this depends on max VF exported in PF */
+		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
+			(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
+
+				FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
+				(*dev->dev_ops->dev_infos_get)(dev, &dev_info);
+		}
+
 		/* For DCB mode check our configuration before we go further */
 		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
 			const struct rte_eth_dcb_rx_conf *conf;
 
-			if (nb_rx_q != ETH_DCB_NUM_QUEUES) {
+			if (nb_rx_q != dev_info.max_rx_queues) {
 				PMD_DEBUG_TRACE("ethdev port_id=%d DCB, nb_rx_q "
 						"!= %d\n",
 						port_id, ETH_DCB_NUM_QUEUES);
@@ -630,7 +657,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
 			const struct rte_eth_dcb_tx_conf *conf;
 
-			if (nb_tx_q != ETH_DCB_NUM_QUEUES) {
+			if (nb_tx_q != dev_info.max_tx_queues) {
 				PMD_DEBUG_TRACE("ethdev port_id=%d DCB, nb_tx_q "
 						"!= %d\n",
 						port_id, ETH_DCB_NUM_QUEUES);
@@ -690,7 +717,10 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 	}
 	if (nb_rx_q == 0) {
 		PMD_DEBUG_TRACE("ethdev port_id=%d nb_rx_q == 0\n", port_id);
-		return (-EINVAL);
+		/* In SRIOV there can be no free resource for PF. So permit use only
+		 * for configuration. */
+		if (RTE_ETH_DEV_SRIOV(dev).active == 0)
+			return (-EINVAL);
 	}
 
 	if (nb_tx_q > dev_info.max_tx_queues) {
@@ -698,9 +728,13 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 				port_id, nb_tx_q, dev_info.max_tx_queues);
 		return (-EINVAL);
 	}
+
 	if (nb_tx_q == 0) {
 		PMD_DEBUG_TRACE("ethdev port_id=%d nb_tx_q == 0\n", port_id);
-		return (-EINVAL);
+		/* In SRIOV there can be no free resource for PF. So permit use only
+		 * for configuration. */
+		if (RTE_ETH_DEV_SRIOV(dev).active == 0)
+			return (-EINVAL);
 	}
 
 	/* Copy the dev_conf parameter into the dev structure */
@@ -750,7 +784,7 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 							ETHER_MAX_LEN;
 	}
 
-	/* multipe queue mode checking */
+	/* multiple queue mode checking */
 	diag = rte_eth_dev_check_mq_mode(port_id, nb_rx_q, nb_tx_q, dev_conf);
 	if (diag != 0) {
 		PMD_DEBUG_TRACE("port%d rte_eth_dev_check_mq_mode = %d\n",
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index ce0528f..04fda83 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -299,7 +299,7 @@ enum rte_eth_rx_mq_mode {
 enum rte_eth_tx_mq_mode {
 	ETH_MQ_TX_NONE    = 0,  /**< It is in neither DCB nor VT mode. */
 	ETH_MQ_TX_DCB,          /**< For TX side,only DCB is on. */
-	ETH_MQ_TX_VMDQ_DCB,	/**< For TX side,both DCB and VT is on. */
+	ETH_MQ_TX_VMDQ_DCB,     /**< For TX side,both DCB and VT is on. */
 	ETH_MQ_TX_VMDQ_ONLY,    /**< Only VT on, no DCB */
 };
 
@@ -1569,7 +1569,8 @@ struct rte_eth_dev {
 
 struct rte_eth_dev_sriov {
 	uint8_t active;               /**< SRIOV is active with 16, 32 or 64 pools */
-	uint8_t nb_q_per_pool;        /**< rx queue number per pool */
+	uint8_t nb_rx_q_per_pool;        /**< rx queue number per pool */
+	uint8_t nb_tx_q_per_pool;        /**< tx queue number per pool */
 	uint16_t def_vmdq_idx;        /**< Default pool num used for PF */
 	uint16_t def_pool_q_idx;      /**< Default pool queue start reg index */
 };
diff --git a/lib/librte_pmd_e1000/igb_pf.c b/lib/librte_pmd_e1000/igb_pf.c
index bc3816a..9d2f858 100644
--- a/lib/librte_pmd_e1000/igb_pf.c
+++ b/lib/librte_pmd_e1000/igb_pf.c
@@ -115,7 +115,8 @@ void igb_pf_host_init(struct rte_eth_dev *eth_dev)
 		rte_panic("Cannot allocate memory for private VF data\n");
 
 	RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_8_POOLS;
-	RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue;
+	RTE_ETH_DEV_SRIOV(eth_dev).nb_rx_q_per_pool = nb_queue;
+	RTE_ETH_DEV_SRIOV(eth_dev).nb_tx_q_per_pool = nb_queue;
 	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
 	RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
 
diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index 3fc3738..347f03c 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -3555,14 +3555,14 @@ static int ixgbe_set_vf_rate_limit(struct rte_eth_dev *dev, uint16_t vf,
 	struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct ixgbe_vf_info *vfinfo =
 		*(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
-	uint8_t  nb_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
+	uint8_t  nb_tx_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool;
 	uint32_t queue_stride =
 		IXGBE_MAX_RX_QUEUE_NUM / RTE_ETH_DEV_SRIOV(dev).active;
 	uint32_t queue_idx = vf * queue_stride, idx = 0, vf_idx;
-	uint32_t queue_end = queue_idx + nb_q_per_pool - 1;
+	uint32_t tx_queue_end = queue_idx + nb_tx_q_per_pool - 1;
 	uint16_t total_rate = 0;
 
-	if (queue_end >= hw->mac.max_tx_queues)
+	if (tx_queue_end >= hw->mac.max_tx_queues)
 		return -EINVAL;
 
 	if (vfinfo != NULL) {
@@ -3577,7 +3577,7 @@ static int ixgbe_set_vf_rate_limit(struct rte_eth_dev *dev, uint16_t vf,
 		return -EINVAL;
 
 	/* Store tx_rate for this vf. */
-	for (idx = 0; idx < nb_q_per_pool; idx++) {
+	for (idx = 0; idx < nb_tx_q_per_pool; idx++) {
 		if (((uint64_t)0x1 << idx) & q_msk) {
 			if (vfinfo[vf].tx_rate[idx] != tx_rate)
 				vfinfo[vf].tx_rate[idx] = tx_rate;
@@ -3595,7 +3595,7 @@ static int ixgbe_set_vf_rate_limit(struct rte_eth_dev *dev, uint16_t vf,
 	}
 
 	/* Set RTTBCNRC of each queue/pool for vf X  */
-	for (; queue_idx <= queue_end; queue_idx++) {
+	for (; queue_idx <= tx_queue_end; queue_idx++) {
 		if (0x1 & q_msk)
 			ixgbe_set_queue_rate_limit(dev, queue_idx, tx_rate);
 		q_msk = q_msk >> 1;
diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
index ca99170..ebf16e9 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
@@ -159,6 +159,7 @@ struct ixgbe_vf_info {
 	uint16_t tx_rate[IXGBE_MAX_QUEUE_NUM_PER_VF];
 	uint16_t vlan_count;
 	uint8_t spoofchk_enabled;
+	unsigned int vf_api;
 };
 
 /*
diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c b/lib/librte_pmd_ixgbe/ixgbe_pf.c
index 51da1fd..4d30bcf 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
@@ -127,7 +127,8 @@ void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
 		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS;
 	}
 
-	RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue;
+	RTE_ETH_DEV_SRIOV(eth_dev).nb_rx_q_per_pool = nb_queue;
+	RTE_ETH_DEV_SRIOV(eth_dev).nb_tx_q_per_pool = nb_queue;
 	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
 	RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
 
@@ -189,7 +190,7 @@ int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
 	hw->mac.ops.set_vmdq(hw, 0, RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx);
 
 	/*
-	 * SW msut set GCR_EXT.VT_Mode the same as GPIE.VT_Mode
+	 * SW must set GCR_EXT.VT_Mode the same as GPIE.VT_Mode
 	 */
 	gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
 	gcr_ext &= ~IXGBE_GCR_EXT_VT_MODE_MASK;
@@ -214,19 +215,19 @@ int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
 	}
 
 	IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
-        IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
+	IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
 
-        /*
+	/*
 	 * enable vlan filtering and allow all vlan tags through
 	 */
-        vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
-        vlanctrl |= IXGBE_VLNCTRL_VFE ; /* enable vlan filters */
-        IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
+	vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
+	vlanctrl |= IXGBE_VLNCTRL_VFE ; /* enable vlan filters */
+	IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
 
-        /* VFTA - enable all vlan filters */
-        for (i = 0; i < IXGBE_MAX_VFTA; i++) {
-                IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
-        }
+	/* VFTA - enable all vlan filters */
+	for (i = 0; i < IXGBE_MAX_VFTA; i++) {
+		IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
+	}
 
 	/* Enable MAC Anti-Spoofing */
 	hw->mac.ops.set_mac_anti_spoofing(hw, FALSE, vf_num);
@@ -369,6 +370,73 @@ ixgbe_vf_reset(struct rte_eth_dev *dev, uint16_t vf, uint32_t *msgbuf)
 }
 
 static int
+ixgbe_negotiate_vf_api(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
+{
+	struct ixgbe_vf_info *vfinfo =
+		*(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
+	int api = msgbuf[1];
+
+	switch (api) {
+	case ixgbe_mbox_api_10:
+	case ixgbe_mbox_api_11:
+		vfinfo[vf].vf_api = api;
+		return 0;
+	default:
+		break;
+	}
+
+	RTE_LOG(DEBUG, PMD, "VF %d requested invalid api version %u\n", vf, api);
+	return -1;
+}
+
+static int
+ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
+{
+	struct ixgbe_vf_info *vfinfo =
+		*(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
+	struct ixgbe_dcb_config *dcb_cfg =
+			IXGBE_DEV_PRIVATE_TO_DCB_CFG(dev->data->dev_private);
+
+	uint8_t num_tcs = dcb_cfg->num_tcs.pg_tcs;
+
+	/* verify the PF is supporting the correct APIs */
+	switch (vfinfo[vf].vf_api) {
+	case ixgbe_mbox_api_10:
+	case ixgbe_mbox_api_11:
+		break;
+	default:
+		return -1;
+	}
+
+	if (RTE_ETH_DEV_SRIOV(dev).active) {
+		if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB)
+			msgbuf[IXGBE_VF_TX_QUEUES] = num_tcs;
+		else
+			msgbuf[IXGBE_VF_TX_QUEUES] = 1;
+
+		if (dev->data->dev_conf.txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB)
+			msgbuf[IXGBE_VF_RX_QUEUES] = num_tcs;
+		else
+			msgbuf[IXGBE_VF_RX_QUEUES] = 1;
+	}	else {
+		/* only allow 1 Tx queue for bandwidth limiting */
+		msgbuf[IXGBE_VF_TX_QUEUES] = 1;
+		msgbuf[IXGBE_VF_RX_QUEUES] = 1;
+	}
+
+	/* notify VF of need for VLAN tag stripping, and correct queue */
+	if (num_tcs)
+		msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
+	else
+		msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
+
+	/* notify VF of default queue */
+	msgbuf[IXGBE_VF_DEF_QUEUE] = 0;
+
+	return 0;
+}
+
+static int
 ixgbe_vf_set_mac_addr(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
 {
 	struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -512,6 +580,12 @@ ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
 	case IXGBE_VF_SET_VLAN:
 		retval = ixgbe_vf_set_vlan(dev, vf, msgbuf);
 		break;
+	case IXGBE_VF_API_NEGOTIATE:
+		retval = ixgbe_negotiate_vf_api(dev, vf, msgbuf);
+		break;
+	case IXGBE_VF_GET_QUEUES:
+		retval = ixgbe_get_vf_queues(dev, vf, msgbuf);
+		break;
 	default:
 		PMD_DRV_LOG(DEBUG, "Unhandled Msg %8.8x", (unsigned)msgbuf[0]);
 		retval = IXGBE_ERR_MBX;
@@ -526,7 +600,7 @@ ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
 
 	msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
 
-	ixgbe_write_mbx(hw, msgbuf, 1, vf);
+	ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
 
 	return retval;
 }
diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
index e10d6a2..49b44fe 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
@@ -3166,10 +3166,9 @@ void ixgbe_configure_dcb(struct rte_eth_dev *dev)
 
 	/* check support mq_mode for DCB */
 	if ((dev_conf->rxmode.mq_mode != ETH_MQ_RX_VMDQ_DCB) &&
-	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB))
-		return;
-
-	if (dev->data->nb_rx_queues != ETH_DCB_NUM_QUEUES)
+	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB) &&
+	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_VMDQ_DCB) &&
+	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_DCB))
 		return;
 
 	/** Configure DCB hardware **/
-- 
1.7.9.5

Re: [dpdk-dev] [PATCH 1/2] pmd: add DCB for VF for ixgbe

[Vlad Zolotarov]

On 01/12/15 17:50, Michal Jastrzebski wrote:
> From: Pawel Wodkowski <pawelx.wodkowski@intel.com>
>
> This patch add support for DCB in SRIOV mode. When no PFC
> is enabled this feature might be used as multiple queues
> (up to 8 or 4) for VF.
>
> It incorporate following modifications:
>   - Allow zero rx/tx queues to be passed to rte_eth_dev_configure().
>     Rationale:
>     in SRIOV mode PF use first free VF to RX/TX. If VF count
>     is 16 or 32 all recources are assigned to VFs so PF can
>     be used only for configuration.
>   - split nb_q_per_pool to nb_rx_q_per_pool and nb_tx_q_per_pool
>     Rationale:
>     rx and tx number of queue might be different if RX and TX are
>     configured in different mode. This allow to inform VF about
>     proper number of queues.
>   - extern mailbox API for DCB mode

IMHO each bullet above is worth a separate patch. ;)
It would be much easier to review.

thanks,
vlad

>
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> ---
>   lib/librte_ether/rte_ethdev.c       |   84 +++++++++++++++++++++---------
>   lib/librte_ether/rte_ethdev.h       |    5 +-
>   lib/librte_pmd_e1000/igb_pf.c       |    3 +-
>   lib/librte_pmd_ixgbe/ixgbe_ethdev.c |   10 ++--
>   lib/librte_pmd_ixgbe/ixgbe_ethdev.h |    1 +
>   lib/librte_pmd_ixgbe/ixgbe_pf.c     |   98 ++++++++++++++++++++++++++++++-----
>   lib/librte_pmd_ixgbe/ixgbe_rxtx.c   |    7 ++-
>   7 files changed, 159 insertions(+), 49 deletions(-)
>
> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
> index 95f2ceb..4c1a494 100644
> --- a/lib/librte_ether/rte_ethdev.c
> +++ b/lib/librte_ether/rte_ethdev.c
> @@ -333,7 +333,7 @@ rte_eth_dev_rx_queue_config(struct rte_eth_dev *dev, uint16_t nb_queues)
>   		dev->data->rx_queues = rte_zmalloc("ethdev->rx_queues",
>   				sizeof(dev->data->rx_queues[0]) * nb_queues,
>   				RTE_CACHE_LINE_SIZE);
> -		if (dev->data->rx_queues == NULL) {
> +		if (dev->data->rx_queues == NULL && nb_queues > 0) {
>   			dev->data->nb_rx_queues = 0;
>   			return -(ENOMEM);
>   		}
> @@ -475,7 +475,7 @@ rte_eth_dev_tx_queue_config(struct rte_eth_dev *dev, uint16_t nb_queues)
>   		dev->data->tx_queues = rte_zmalloc("ethdev->tx_queues",
>   				sizeof(dev->data->tx_queues[0]) * nb_queues,
>   				RTE_CACHE_LINE_SIZE);
> -		if (dev->data->tx_queues == NULL) {
> +		if (dev->data->tx_queues == NULL && nb_queues > 0) {
>   			dev->data->nb_tx_queues = 0;
>   			return -(ENOMEM);
>   		}
> @@ -507,6 +507,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>   		      const struct rte_eth_conf *dev_conf)
>   {
>   	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
> +	struct rte_eth_dev_info dev_info;
>   
>   	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
>   		/* check multi-queue mode */
> @@ -524,11 +525,33 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>   			return (-EINVAL);
>   		}
>   
> +		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) &&
> +			(dev_conf->txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB)) {
> +			enum rte_eth_nb_pools rx_pools =
> +						dev_conf->rx_adv_conf.vmdq_dcb_conf.nb_queue_pools;
> +			enum rte_eth_nb_pools tx_pools =
> +						dev_conf->tx_adv_conf.vmdq_dcb_tx_conf.nb_queue_pools;
> +
> +			if (rx_pools != tx_pools) {
> +				/* Only equal number of pools is supported when
> +				 * DCB+VMDq in SRIOV */
> +				PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
> +						" SRIOV active, DCB+VMDQ mode, "
> +						"number of rx and tx pools is not eqaul\n",
> +						port_id);
> +				return (-EINVAL);
> +			}
> +		}
> +
> +		uint16_t nb_rx_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool;
> +		uint16_t nb_tx_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool;
> +
>   		switch (dev_conf->rxmode.mq_mode) {
> -		case ETH_MQ_RX_VMDQ_RSS:
>   		case ETH_MQ_RX_VMDQ_DCB:
> +			break;
> +		case ETH_MQ_RX_VMDQ_RSS:
>   		case ETH_MQ_RX_VMDQ_DCB_RSS:
> -			/* DCB/RSS VMDQ in SRIOV mode, not implement yet */
> +			/* RSS, DCB+RSS VMDQ in SRIOV mode, not implement yet */
>   			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
>   					" SRIOV active, "
>   					"unsupported VMDQ mq_mode rx %u\n",
> @@ -537,37 +560,32 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>   		default: /* ETH_MQ_RX_VMDQ_ONLY or ETH_MQ_RX_NONE */
>   			/* if nothing mq mode configure, use default scheme */
>   			dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_ONLY;
> -			if (RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool > 1)
> -				RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = 1;
> +			if (nb_rx_q_per_pool > 1)
> +				nb_rx_q_per_pool = 1;
>   			break;
>   		}
>   
>   		switch (dev_conf->txmode.mq_mode) {
> -		case ETH_MQ_TX_VMDQ_DCB:
> -			/* DCB VMDQ in SRIOV mode, not implement yet */
> -			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
> -					" SRIOV active, "
> -					"unsupported VMDQ mq_mode tx %u\n",
> -					port_id, dev_conf->txmode.mq_mode);
> -			return (-EINVAL);
> +		case ETH_MQ_TX_VMDQ_DCB: /* DCB VMDQ in SRIOV mode*/
> +			break;
>   		default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
>   			/* if nothing mq mode configure, use default scheme */
>   			dev->data->dev_conf.txmode.mq_mode = ETH_MQ_TX_VMDQ_ONLY;
> -			if (RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool > 1)
> -				RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = 1;
> +			if (nb_tx_q_per_pool > 1)
> +				nb_tx_q_per_pool = 1;
>   			break;
>   		}
>   
>   		/* check valid queue number */
> -		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool) ||
> -		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool)) {
> +		if (nb_rx_q > nb_rx_q_per_pool || nb_tx_q > nb_tx_q_per_pool) {
>   			PMD_DEBUG_TRACE("ethdev port_id=%d SRIOV active, "
> -				    "queue number must less equal to %d\n",
> -					port_id, RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool);
> +				    "rx/tx queue number must less equal to %d/%d\n",
> +					port_id, RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool,
> +					RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool);
>   			return (-EINVAL);
>   		}
>   	} else {
> -		/* For vmdb+dcb mode check our configuration before we go further */
> +		/* For vmdq+dcb mode check our configuration before we go further */
>   		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) {
>   			const struct rte_eth_vmdq_dcb_conf *conf;
>   
> @@ -606,11 +624,20 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>   			}
>   		}
>   
> +		/* For DCB we need to obtain maximum number of queues dinamically,
> +		 * as this depends on max VF exported in PF */
> +		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
> +			(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
> +
> +				FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
> +				(*dev->dev_ops->dev_infos_get)(dev, &dev_info);
> +		}
> +
>   		/* For DCB mode check our configuration before we go further */
>   		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
>   			const struct rte_eth_dcb_rx_conf *conf;
>   
> -			if (nb_rx_q != ETH_DCB_NUM_QUEUES) {
> +			if (nb_rx_q != dev_info.max_rx_queues) {
>   				PMD_DEBUG_TRACE("ethdev port_id=%d DCB, nb_rx_q "
>   						"!= %d\n",
>   						port_id, ETH_DCB_NUM_QUEUES);
> @@ -630,7 +657,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>   		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
>   			const struct rte_eth_dcb_tx_conf *conf;
>   
> -			if (nb_tx_q != ETH_DCB_NUM_QUEUES) {
> +			if (nb_tx_q != dev_info.max_tx_queues) {
>   				PMD_DEBUG_TRACE("ethdev port_id=%d DCB, nb_tx_q "
>   						"!= %d\n",
>   						port_id, ETH_DCB_NUM_QUEUES);
> @@ -690,7 +717,10 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>   	}
>   	if (nb_rx_q == 0) {
>   		PMD_DEBUG_TRACE("ethdev port_id=%d nb_rx_q == 0\n", port_id);
> -		return (-EINVAL);
> +		/* In SRIOV there can be no free resource for PF. So permit use only
> +		 * for configuration. */
> +		if (RTE_ETH_DEV_SRIOV(dev).active == 0)
> +			return (-EINVAL);
>   	}
>   
>   	if (nb_tx_q > dev_info.max_tx_queues) {
> @@ -698,9 +728,13 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>   				port_id, nb_tx_q, dev_info.max_tx_queues);
>   		return (-EINVAL);
>   	}
> +
>   	if (nb_tx_q == 0) {
>   		PMD_DEBUG_TRACE("ethdev port_id=%d nb_tx_q == 0\n", port_id);
> -		return (-EINVAL);
> +		/* In SRIOV there can be no free resource for PF. So permit use only
> +		 * for configuration. */
> +		if (RTE_ETH_DEV_SRIOV(dev).active == 0)
> +			return (-EINVAL);
>   	}
>   
>   	/* Copy the dev_conf parameter into the dev structure */
> @@ -750,7 +784,7 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>   							ETHER_MAX_LEN;
>   	}
>   
> -	/* multipe queue mode checking */
> +	/* multiple queue mode checking */
>   	diag = rte_eth_dev_check_mq_mode(port_id, nb_rx_q, nb_tx_q, dev_conf);
>   	if (diag != 0) {
>   		PMD_DEBUG_TRACE("port%d rte_eth_dev_check_mq_mode = %d\n",
> diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
> index ce0528f..04fda83 100644
> --- a/lib/librte_ether/rte_ethdev.h
> +++ b/lib/librte_ether/rte_ethdev.h
> @@ -299,7 +299,7 @@ enum rte_eth_rx_mq_mode {
>   enum rte_eth_tx_mq_mode {
>   	ETH_MQ_TX_NONE    = 0,  /**< It is in neither DCB nor VT mode. */
>   	ETH_MQ_TX_DCB,          /**< For TX side,only DCB is on. */
> -	ETH_MQ_TX_VMDQ_DCB,	/**< For TX side,both DCB and VT is on. */
> +	ETH_MQ_TX_VMDQ_DCB,     /**< For TX side,both DCB and VT is on. */
>   	ETH_MQ_TX_VMDQ_ONLY,    /**< Only VT on, no DCB */
>   };
>   
> @@ -1569,7 +1569,8 @@ struct rte_eth_dev {
>   
>   struct rte_eth_dev_sriov {
>   	uint8_t active;               /**< SRIOV is active with 16, 32 or 64 pools */
> -	uint8_t nb_q_per_pool;        /**< rx queue number per pool */
> +	uint8_t nb_rx_q_per_pool;        /**< rx queue number per pool */
> +	uint8_t nb_tx_q_per_pool;        /**< tx queue number per pool */
>   	uint16_t def_vmdq_idx;        /**< Default pool num used for PF */
>   	uint16_t def_pool_q_idx;      /**< Default pool queue start reg index */
>   };
> diff --git a/lib/librte_pmd_e1000/igb_pf.c b/lib/librte_pmd_e1000/igb_pf.c
> index bc3816a..9d2f858 100644
> --- a/lib/librte_pmd_e1000/igb_pf.c
> +++ b/lib/librte_pmd_e1000/igb_pf.c
> @@ -115,7 +115,8 @@ void igb_pf_host_init(struct rte_eth_dev *eth_dev)
>   		rte_panic("Cannot allocate memory for private VF data\n");
>   
>   	RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_8_POOLS;
> -	RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue;
> +	RTE_ETH_DEV_SRIOV(eth_dev).nb_rx_q_per_pool = nb_queue;
> +	RTE_ETH_DEV_SRIOV(eth_dev).nb_tx_q_per_pool = nb_queue;
>   	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
>   	RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
>   
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> index 3fc3738..347f03c 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> @@ -3555,14 +3555,14 @@ static int ixgbe_set_vf_rate_limit(struct rte_eth_dev *dev, uint16_t vf,
>   	struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
>   	struct ixgbe_vf_info *vfinfo =
>   		*(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
> -	uint8_t  nb_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
> +	uint8_t  nb_tx_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool;
>   	uint32_t queue_stride =
>   		IXGBE_MAX_RX_QUEUE_NUM / RTE_ETH_DEV_SRIOV(dev).active;
>   	uint32_t queue_idx = vf * queue_stride, idx = 0, vf_idx;
> -	uint32_t queue_end = queue_idx + nb_q_per_pool - 1;
> +	uint32_t tx_queue_end = queue_idx + nb_tx_q_per_pool - 1;
>   	uint16_t total_rate = 0;
>   
> -	if (queue_end >= hw->mac.max_tx_queues)
> +	if (tx_queue_end >= hw->mac.max_tx_queues)
>   		return -EINVAL;
>   
>   	if (vfinfo != NULL) {
> @@ -3577,7 +3577,7 @@ static int ixgbe_set_vf_rate_limit(struct rte_eth_dev *dev, uint16_t vf,
>   		return -EINVAL;
>   
>   	/* Store tx_rate for this vf. */
> -	for (idx = 0; idx < nb_q_per_pool; idx++) {
> +	for (idx = 0; idx < nb_tx_q_per_pool; idx++) {
>   		if (((uint64_t)0x1 << idx) & q_msk) {
>   			if (vfinfo[vf].tx_rate[idx] != tx_rate)
>   				vfinfo[vf].tx_rate[idx] = tx_rate;
> @@ -3595,7 +3595,7 @@ static int ixgbe_set_vf_rate_limit(struct rte_eth_dev *dev, uint16_t vf,
>   	}
>   
>   	/* Set RTTBCNRC of each queue/pool for vf X  */
> -	for (; queue_idx <= queue_end; queue_idx++) {
> +	for (; queue_idx <= tx_queue_end; queue_idx++) {
>   		if (0x1 & q_msk)
>   			ixgbe_set_queue_rate_limit(dev, queue_idx, tx_rate);
>   		q_msk = q_msk >> 1;
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> index ca99170..ebf16e9 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> @@ -159,6 +159,7 @@ struct ixgbe_vf_info {
>   	uint16_t tx_rate[IXGBE_MAX_QUEUE_NUM_PER_VF];
>   	uint16_t vlan_count;
>   	uint8_t spoofchk_enabled;
> +	unsigned int vf_api;
>   };
>   
>   /*
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c b/lib/librte_pmd_ixgbe/ixgbe_pf.c
> index 51da1fd..4d30bcf 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
> @@ -127,7 +127,8 @@ void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
>   		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS;
>   	}
>   
> -	RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue;
> +	RTE_ETH_DEV_SRIOV(eth_dev).nb_rx_q_per_pool = nb_queue;
> +	RTE_ETH_DEV_SRIOV(eth_dev).nb_tx_q_per_pool = nb_queue;
>   	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
>   	RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
>   
> @@ -189,7 +190,7 @@ int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
>   	hw->mac.ops.set_vmdq(hw, 0, RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx);
>   
>   	/*
> -	 * SW msut set GCR_EXT.VT_Mode the same as GPIE.VT_Mode
> +	 * SW must set GCR_EXT.VT_Mode the same as GPIE.VT_Mode
>   	 */
>   	gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
>   	gcr_ext &= ~IXGBE_GCR_EXT_VT_MODE_MASK;
> @@ -214,19 +215,19 @@ int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
>   	}
>   
>   	IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
> -        IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
> +	IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
>   
> -        /*
> +	/*
>   	 * enable vlan filtering and allow all vlan tags through
>   	 */
> -        vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
> -        vlanctrl |= IXGBE_VLNCTRL_VFE ; /* enable vlan filters */
> -        IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
> +	vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
> +	vlanctrl |= IXGBE_VLNCTRL_VFE ; /* enable vlan filters */
> +	IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
>   
> -        /* VFTA - enable all vlan filters */
> -        for (i = 0; i < IXGBE_MAX_VFTA; i++) {
> -                IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
> -        }
> +	/* VFTA - enable all vlan filters */
> +	for (i = 0; i < IXGBE_MAX_VFTA; i++) {
> +		IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
> +	}
>   
>   	/* Enable MAC Anti-Spoofing */
>   	hw->mac.ops.set_mac_anti_spoofing(hw, FALSE, vf_num);
> @@ -369,6 +370,73 @@ ixgbe_vf_reset(struct rte_eth_dev *dev, uint16_t vf, uint32_t *msgbuf)
>   }
>   
>   static int
> +ixgbe_negotiate_vf_api(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
> +{
> +	struct ixgbe_vf_info *vfinfo =
> +		*(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
> +	int api = msgbuf[1];
> +
> +	switch (api) {
> +	case ixgbe_mbox_api_10:
> +	case ixgbe_mbox_api_11:
> +		vfinfo[vf].vf_api = api;
> +		return 0;
> +	default:
> +		break;
> +	}
> +
> +	RTE_LOG(DEBUG, PMD, "VF %d requested invalid api version %u\n", vf, api);
> +	return -1;
> +}
> +
> +static int
> +ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
> +{
> +	struct ixgbe_vf_info *vfinfo =
> +		*(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
> +	struct ixgbe_dcb_config *dcb_cfg =
> +			IXGBE_DEV_PRIVATE_TO_DCB_CFG(dev->data->dev_private);
> +
> +	uint8_t num_tcs = dcb_cfg->num_tcs.pg_tcs;
> +
> +	/* verify the PF is supporting the correct APIs */
> +	switch (vfinfo[vf].vf_api) {
> +	case ixgbe_mbox_api_10:
> +	case ixgbe_mbox_api_11:
> +		break;
> +	default:
> +		return -1;
> +	}
> +
> +	if (RTE_ETH_DEV_SRIOV(dev).active) {
> +		if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB)
> +			msgbuf[IXGBE_VF_TX_QUEUES] = num_tcs;
> +		else
> +			msgbuf[IXGBE_VF_TX_QUEUES] = 1;
> +
> +		if (dev->data->dev_conf.txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB)
> +			msgbuf[IXGBE_VF_RX_QUEUES] = num_tcs;
> +		else
> +			msgbuf[IXGBE_VF_RX_QUEUES] = 1;
> +	}	else {
> +		/* only allow 1 Tx queue for bandwidth limiting */
> +		msgbuf[IXGBE_VF_TX_QUEUES] = 1;
> +		msgbuf[IXGBE_VF_RX_QUEUES] = 1;
> +	}
> +
> +	/* notify VF of need for VLAN tag stripping, and correct queue */
> +	if (num_tcs)
> +		msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
> +	else
> +		msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
> +
> +	/* notify VF of default queue */
> +	msgbuf[IXGBE_VF_DEF_QUEUE] = 0;
> +
> +	return 0;
> +}
> +
> +static int
>   ixgbe_vf_set_mac_addr(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
>   {
>   	struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> @@ -512,6 +580,12 @@ ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
>   	case IXGBE_VF_SET_VLAN:
>   		retval = ixgbe_vf_set_vlan(dev, vf, msgbuf);
>   		break;
> +	case IXGBE_VF_API_NEGOTIATE:
> +		retval = ixgbe_negotiate_vf_api(dev, vf, msgbuf);
> +		break;
> +	case IXGBE_VF_GET_QUEUES:
> +		retval = ixgbe_get_vf_queues(dev, vf, msgbuf);
> +		break;
>   	default:
>   		PMD_DRV_LOG(DEBUG, "Unhandled Msg %8.8x", (unsigned)msgbuf[0]);
>   		retval = IXGBE_ERR_MBX;
> @@ -526,7 +600,7 @@ ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
>   
>   	msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
>   
> -	ixgbe_write_mbx(hw, msgbuf, 1, vf);
> +	ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
>   
>   	return retval;
>   }
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> index e10d6a2..49b44fe 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> @@ -3166,10 +3166,9 @@ void ixgbe_configure_dcb(struct rte_eth_dev *dev)
>   
>   	/* check support mq_mode for DCB */
>   	if ((dev_conf->rxmode.mq_mode != ETH_MQ_RX_VMDQ_DCB) &&
> -	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB))
> -		return;
> -
> -	if (dev->data->nb_rx_queues != ETH_DCB_NUM_QUEUES)
> +	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB) &&
> +	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_VMDQ_DCB) &&
> +	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_DCB))
>   		return;
>   
>   	/** Configure DCB hardware **/

Re: [dpdk-dev] [PATCH 1/2] pmd: add DCB for VF for ixgbe

[Wodkowski, PawelX]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Vlad Zolotarov
> Sent: Tuesday, January 13, 2015 11:14 AM
> To: Jastrzebski, MichalX K; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH 1/2] pmd: add DCB for VF for ixgbe
> 
> 
> On 01/12/15 17:50, Michal Jastrzebski wrote:
> > From: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> >
> > This patch add support for DCB in SRIOV mode. When no PFC
> > is enabled this feature might be used as multiple queues
> > (up to 8 or 4) for VF.
> >
> > It incorporate following modifications:
> >   - Allow zero rx/tx queues to be passed to rte_eth_dev_configure().
> >     Rationale:
> >     in SRIOV mode PF use first free VF to RX/TX. If VF count
> >     is 16 or 32 all recources are assigned to VFs so PF can
> >     be used only for configuration.
> >   - split nb_q_per_pool to nb_rx_q_per_pool and nb_tx_q_per_pool
> >     Rationale:
> >     rx and tx number of queue might be different if RX and TX are
> >     configured in different mode. This allow to inform VF about
> >     proper number of queues.
> >   - extern mailbox API for DCB mode
> 
> IMHO each bullet above is worth a separate patch. ;)
> It would be much easier to review.
> 

Good point. I will send next version shortly.

Pawel

Re: [dpdk-dev] [PATCH 1/2] pmd: add DCB for VF for ixgbe

[Ouyang, Changchun]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Vlad Zolotarov
> Sent: Tuesday, January 13, 2015 6:14 PM
> To: Jastrzebski, MichalX K; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH 1/2] pmd: add DCB for VF for ixgbe
> 
> 
> On 01/12/15 17:50, Michal Jastrzebski wrote:
> > From: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> >
> > This patch add support for DCB in SRIOV mode. When no PFC is enabled
> > this feature might be used as multiple queues (up to 8 or 4) for VF.
> >
> > It incorporate following modifications:
> >   - Allow zero rx/tx queues to be passed to rte_eth_dev_configure().
> >     Rationale:
> >     in SRIOV mode PF use first free VF to RX/TX. If VF count
> >     is 16 or 32 all recources are assigned to VFs so PF can
> >     be used only for configuration.
> >   - split nb_q_per_pool to nb_rx_q_per_pool and nb_tx_q_per_pool
> >     Rationale:
> >     rx and tx number of queue might be different if RX and TX are
> >     configured in different mode. This allow to inform VF about
> >     proper number of queues.
> >   - extern mailbox API for DCB mode
> 
> IMHO each bullet above is worth a separate patch. ;) It would be much easier
> to review.
> 
> thanks,
> vlad
> 
Agree with Vlad

[dpdk-dev] [PATCH 2/2] testpmd: fix dcb in vt mode

[Michal Jastrzebski]

From: Pawel Wodkowski <pawelx.wodkowski@intel.com>

This patch incorporate fixes to support DCB in SRIOV mode for testpmd.
It also clean up some old code that is not needed or wrong.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 app/test-pmd/cmdline.c |    4 ++--
 app/test-pmd/testpmd.c |   39 +++++++++++++++++++++++++++++----------
 app/test-pmd/testpmd.h |   10 ----------
 3 files changed, 31 insertions(+), 22 deletions(-)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 882a5a2..3c60087 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -1947,9 +1947,9 @@ cmd_config_dcb_parsed(void *parsed_result,
 
 	/* DCB in VT mode */
 	if (!strncmp(res->vt_en, "on",2))
-		dcb_conf.dcb_mode = DCB_VT_ENABLED;
+		dcb_conf.vt_en = 1;
 	else
-		dcb_conf.dcb_mode = DCB_ENABLED;
+		dcb_conf.vt_en = 0;
 
 	if (!strncmp(res->pfc_en, "on",2)) {
 		dcb_conf.pfc_en = 1;
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 8c69756..6677a5e 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -1733,7 +1733,8 @@ const uint16_t vlan_tags[] = {
 };
 
 static  int
-get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
+get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf,
+	uint16_t sriov)
 {
         uint8_t i;
 
@@ -1741,7 +1742,7 @@ get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
  	 * Builds up the correct configuration for dcb+vt based on the vlan tags array
  	 * given above, and the number of traffic classes available for use.
  	 */
-	if (dcb_conf->dcb_mode == DCB_VT_ENABLED) {
+	if (dcb_conf->vt_en == 1) {
 		struct rte_eth_vmdq_dcb_conf vmdq_rx_conf;
 		struct rte_eth_vmdq_dcb_tx_conf vmdq_tx_conf;
 
@@ -1758,9 +1759,17 @@ get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
 			vmdq_rx_conf.pool_map[i].vlan_id = vlan_tags[ i ];
 			vmdq_rx_conf.pool_map[i].pools = 1 << (i % vmdq_rx_conf.nb_queue_pools);
 		}
-		for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
-			vmdq_rx_conf.dcb_queue[i] = i;
-			vmdq_tx_conf.dcb_queue[i] = i;
+
+		if (sriov == 0) {
+			for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
+				vmdq_rx_conf.dcb_queue[i] = i;
+				vmdq_tx_conf.dcb_queue[i] = i;
+			}
+		} else {
+			for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
+				vmdq_rx_conf.dcb_queue[i] = i % dcb_conf->num_tcs;
+				vmdq_tx_conf.dcb_queue[i] = i % dcb_conf->num_tcs;
+			}
 		}
 
 		/*set DCB mode of RX and TX of multiple queues*/
@@ -1818,22 +1827,32 @@ init_port_dcb_config(portid_t pid,struct dcb_config *dcb_conf)
 	uint16_t nb_vlan;
 	uint16_t i;
 
-	/* rxq and txq configuration in dcb mode */
-	nb_rxq = 128;
-	nb_txq = 128;
 	rx_free_thresh = 64;
 
+	rte_port = &ports[pid];
 	memset(&port_conf,0,sizeof(struct rte_eth_conf));
 	/* Enter DCB configuration status */
 	dcb_config = 1;
 
 	nb_vlan = sizeof( vlan_tags )/sizeof( vlan_tags[ 0 ]);
 	/*set configuration of DCB in vt mode and DCB in non-vt mode*/
-	retval = get_eth_dcb_conf(&port_conf, dcb_conf);
+	retval = get_eth_dcb_conf(&port_conf, dcb_conf, rte_port->dev_info.max_vfs);
+
+	/* rxq and txq configuration in dcb mode */
+	nb_rxq = rte_port->dev_info.max_rx_queues;
+	nb_txq = rte_port->dev_info.max_tx_queues;
+
+	if (rte_port->dev_info.max_vfs) {
+		if (port_conf.rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB)
+			nb_rxq /= port_conf.rx_adv_conf.vmdq_dcb_conf.nb_queue_pools;
+
+		if (port_conf.txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB)
+			nb_txq /= port_conf.tx_adv_conf.vmdq_dcb_tx_conf.nb_queue_pools;
+	}
+
 	if (retval < 0)
 		return retval;
 
-	rte_port = &ports[pid];
 	memcpy(&rte_port->dev_conf, &port_conf,sizeof(struct rte_eth_conf));
 
 	rte_port->rx_conf.rx_thresh = rx_thresh;
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index f8b0740..8976acc 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -227,20 +227,10 @@ struct fwd_config {
 	portid_t   nb_fwd_ports;    /**< Nb. of ports involved. */
 };
 
-/**
- * DCB mode enable
- */
-enum dcb_mode_enable
-{
-	DCB_VT_ENABLED,
-	DCB_ENABLED
-};
-
 /*
  * DCB general config info
  */
 struct dcb_config {
-	enum dcb_mode_enable dcb_mode;
 	uint8_t vt_en;
 	enum rte_eth_nb_tcs num_tcs;
 	uint8_t pfc_en;
-- 
1.7.9.5

Re: [dpdk-dev] [PATCH 2/2] testpmd: fix dcb in vt mode

[Vlad Zolotarov]

On 01/12/15 17:50, Michal Jastrzebski wrote:
> From: Pawel Wodkowski <pawelx.wodkowski@intel.com>
>
> This patch incorporate fixes to support DCB in SRIOV mode for testpmd.
> It also clean up some old code that is not needed or wrong.

The same here: could u, pls., separate the "cleanup" part of the patch 
from the "fixes" part into separate patches?

thanks,
vlad

>
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> ---
>   app/test-pmd/cmdline.c |    4 ++--
>   app/test-pmd/testpmd.c |   39 +++++++++++++++++++++++++++++----------
>   app/test-pmd/testpmd.h |   10 ----------
>   3 files changed, 31 insertions(+), 22 deletions(-)
>
> diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
> index 882a5a2..3c60087 100644
> --- a/app/test-pmd/cmdline.c
> +++ b/app/test-pmd/cmdline.c
> @@ -1947,9 +1947,9 @@ cmd_config_dcb_parsed(void *parsed_result,
>   
>   	/* DCB in VT mode */
>   	if (!strncmp(res->vt_en, "on",2))
> -		dcb_conf.dcb_mode = DCB_VT_ENABLED;
> +		dcb_conf.vt_en = 1;
>   	else
> -		dcb_conf.dcb_mode = DCB_ENABLED;
> +		dcb_conf.vt_en = 0;
>   
>   	if (!strncmp(res->pfc_en, "on",2)) {
>   		dcb_conf.pfc_en = 1;
> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
> index 8c69756..6677a5e 100644
> --- a/app/test-pmd/testpmd.c
> +++ b/app/test-pmd/testpmd.c
> @@ -1733,7 +1733,8 @@ const uint16_t vlan_tags[] = {
>   };
>   
>   static  int
> -get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
> +get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf,
> +	uint16_t sriov)
>   {
>           uint8_t i;
>   
> @@ -1741,7 +1742,7 @@ get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
>    	 * Builds up the correct configuration for dcb+vt based on the vlan tags array
>    	 * given above, and the number of traffic classes available for use.
>    	 */
> -	if (dcb_conf->dcb_mode == DCB_VT_ENABLED) {
> +	if (dcb_conf->vt_en == 1) {
>   		struct rte_eth_vmdq_dcb_conf vmdq_rx_conf;
>   		struct rte_eth_vmdq_dcb_tx_conf vmdq_tx_conf;
>   
> @@ -1758,9 +1759,17 @@ get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
>   			vmdq_rx_conf.pool_map[i].vlan_id = vlan_tags[ i ];
>   			vmdq_rx_conf.pool_map[i].pools = 1 << (i % vmdq_rx_conf.nb_queue_pools);
>   		}
> -		for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
> -			vmdq_rx_conf.dcb_queue[i] = i;
> -			vmdq_tx_conf.dcb_queue[i] = i;
> +
> +		if (sriov == 0) {
> +			for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
> +				vmdq_rx_conf.dcb_queue[i] = i;
> +				vmdq_tx_conf.dcb_queue[i] = i;
> +			}
> +		} else {
> +			for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
> +				vmdq_rx_conf.dcb_queue[i] = i % dcb_conf->num_tcs;
> +				vmdq_tx_conf.dcb_queue[i] = i % dcb_conf->num_tcs;
> +			}
>   		}
>   
>   		/*set DCB mode of RX and TX of multiple queues*/
> @@ -1818,22 +1827,32 @@ init_port_dcb_config(portid_t pid,struct dcb_config *dcb_conf)
>   	uint16_t nb_vlan;
>   	uint16_t i;
>   
> -	/* rxq and txq configuration in dcb mode */
> -	nb_rxq = 128;
> -	nb_txq = 128;
>   	rx_free_thresh = 64;
>   
> +	rte_port = &ports[pid];
>   	memset(&port_conf,0,sizeof(struct rte_eth_conf));
>   	/* Enter DCB configuration status */
>   	dcb_config = 1;
>   
>   	nb_vlan = sizeof( vlan_tags )/sizeof( vlan_tags[ 0 ]);
>   	/*set configuration of DCB in vt mode and DCB in non-vt mode*/
> -	retval = get_eth_dcb_conf(&port_conf, dcb_conf);
> +	retval = get_eth_dcb_conf(&port_conf, dcb_conf, rte_port->dev_info.max_vfs);
> +
> +	/* rxq and txq configuration in dcb mode */
> +	nb_rxq = rte_port->dev_info.max_rx_queues;
> +	nb_txq = rte_port->dev_info.max_tx_queues;
> +
> +	if (rte_port->dev_info.max_vfs) {
> +		if (port_conf.rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB)
> +			nb_rxq /= port_conf.rx_adv_conf.vmdq_dcb_conf.nb_queue_pools;
> +
> +		if (port_conf.txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB)
> +			nb_txq /= port_conf.tx_adv_conf.vmdq_dcb_tx_conf.nb_queue_pools;
> +	}
> +
>   	if (retval < 0)
>   		return retval;
>   
> -	rte_port = &ports[pid];
>   	memcpy(&rte_port->dev_conf, &port_conf,sizeof(struct rte_eth_conf));
>   
>   	rte_port->rx_conf.rx_thresh = rx_thresh;
> diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
> index f8b0740..8976acc 100644
> --- a/app/test-pmd/testpmd.h
> +++ b/app/test-pmd/testpmd.h
> @@ -227,20 +227,10 @@ struct fwd_config {
>   	portid_t   nb_fwd_ports;    /**< Nb. of ports involved. */
>   };
>   
> -/**
> - * DCB mode enable
> - */
> -enum dcb_mode_enable
> -{
> -	DCB_VT_ENABLED,
> -	DCB_ENABLED
> -};
> -
>   /*
>    * DCB general config info
>    */
>   struct dcb_config {
> -	enum dcb_mode_enable dcb_mode;
>   	uint8_t vt_en;
>   	enum rte_eth_nb_tcs num_tcs;
>   	uint8_t pfc_en;

Re: [dpdk-dev] [PATCH 2/2] testpmd: fix dcb in vt mode

[Wodkowski, PawelX]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Vlad Zolotarov
> Sent: Tuesday, January 13, 2015 11:16 AM
> To: Jastrzebski, MichalX K; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH 2/2] testpmd: fix dcb in vt mode
> 
> 
> On 01/12/15 17:50, Michal Jastrzebski wrote:
> > From: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> >
> > This patch incorporate fixes to support DCB in SRIOV mode for testpmd.
> > It also clean up some old code that is not needed or wrong.
> 
> The same here: could u, pls., separate the "cleanup" part of the patch
> from the "fixes" part into separate patches?
> 

Maybe little confusion I introduced by saying cleanups. Some code became
obsolete (like enum dcb_mode_enable) when I fixed DCV in VT mode, so
removing those parts I called "cleanups". Please consider them to be a fixes.

Pawel

Re: [dpdk-dev] [PATCH 0/2] Enable DCB in SRIOV mode for ixgbe driver

[Wodkowski, PawelX]

Comments are more than welcome :)

Pawel

Re: [dpdk-dev] [PATCH 0/2] Enable DCB in SRIOV mode for ixgbe driver

[Vlad Zolotarov]

On 01/12/15 17:50, Michal Jastrzebski wrote:
> From: Pawel Wodkowski <pawelx.wodkowski@intel.com>
>
> Hi,
> this patchset enables DCB in SRIOV (ETH_MQ_RX_VMDQ_DCB and ETH_MQ_TX_VMDQ_DCB)
> for each VF and PF for ixgbe driver.
>
> As a side effect this allow to use multiple queues for TX in VF (8 if there is
> 16 or less VFs or 4 if there is 32 or less VFs) when PFC is not enabled.

Here it is! ;) Thanks. Pls., ignore my previous email about the 
respinning... ;)

>
>
> Pawel Wodkowski (2):
>    pmd: add DCB for VF for ixgbe
>    testpmd: fix dcb in vt mode
>
>   app/test-pmd/cmdline.c              |    4 +-
>   app/test-pmd/testpmd.c              |   39 ++++++++++----
>   app/test-pmd/testpmd.h              |   10 ----
>   lib/librte_ether/rte_ethdev.c       |   84 +++++++++++++++++++++---------
>   lib/librte_ether/rte_ethdev.h       |    5 +-
>   lib/librte_pmd_e1000/igb_pf.c       |    3 +-
>   lib/librte_pmd_ixgbe/ixgbe_ethdev.c |   10 ++--
>   lib/librte_pmd_ixgbe/ixgbe_ethdev.h |    1 +
>   lib/librte_pmd_ixgbe/ixgbe_pf.c     |   98 ++++++++++++++++++++++++++++++-----
>   lib/librte_pmd_ixgbe/ixgbe_rxtx.c   |    7 ++-
>   10 files changed, 190 insertions(+), 71 deletions(-)
>

[dpdk-dev] [PATCH v2 0/4] Enable DCB in SRIOV mode for ixgbe driver

[Pawel Wodkowski]

v2:
- Split patch for easer review.
- Remove "pmd: add api version negotiation for ixgbe driver" and "pmd: extend
  mailbox api to report number of RX/TX queues" patches as those are already 
  already marged from other patch

v1:
This patchset enables DCB in SRIOV (ETH_MQ_RX_VMDQ_DCB and ETH_MQ_TX_VMDQ_DCB)
for each VF and PF for ixgbe driver.

As a side effect this allow to use multiple queues for TX in VF (8 if there is
16 or less VFs or 4 if there is 32 or less VFs) when PFC is not enabled.

Pawel Wodkowski (4):
  ethdev: Allow zero rx/tx queues in SRIOV mode
  ethdev: prevent changing of nb_q_per_pool in     
    rte_eth_dev_check_mq_mode()
  pmd: add support for DCB in SRIOV mode for ixgbe driver.
  testpmd: fix dcb in vt mode

 app/test-pmd/cmdline.c            |    4 +--
 app/test-pmd/testpmd.c            |   39 +++++++++++++++++------
 app/test-pmd/testpmd.h            |   10 ------
 lib/librte_ether/rte_ethdev.c     |   63 +++++++++++++++++++++++--------------
 lib/librte_ether/rte_ethdev.h     |    2 +-
 lib/librte_pmd_ixgbe/ixgbe_pf.c   |   42 ++++++++++++++++++-------
 lib/librte_pmd_ixgbe/ixgbe_rxtx.c |    7 ++---
 7 files changed, 106 insertions(+), 61 deletions(-)

-- 
1.7.9.5

[dpdk-dev] [PATCH v2 1/4] ethdev: Allow zero rx/tx queues in SRIOV mode

[Pawel Wodkowski]

Allow zero rx/tx queues to be passed to rte_eth_dev_configure(). This
way PF might be used only for configuration purpose when no receive
and/or transmit functionality is needed.

Rationale:
in SRIOV mode PF use first free VF to RX/TX (at least ixgbe based NICs).
For example: if using 82599EB based NIC and VF count is 16, 32 or 64 all
recources are assigned to VFs so PF might be used only for configuration
purpose.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 lib/librte_ether/rte_ethdev.c |   15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 077d430..62d7f6e 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -333,7 +333,7 @@ rte_eth_dev_rx_queue_config(struct rte_eth_dev *dev, uint16_t nb_queues)
 		dev->data->rx_queues = rte_zmalloc("ethdev->rx_queues",
 				sizeof(dev->data->rx_queues[0]) * nb_queues,
 				RTE_CACHE_LINE_SIZE);
-		if (dev->data->rx_queues == NULL) {
+		if (dev->data->rx_queues == NULL && nb_queues > 0) {
 			dev->data->nb_rx_queues = 0;
 			return -(ENOMEM);
 		}
@@ -475,7 +475,7 @@ rte_eth_dev_tx_queue_config(struct rte_eth_dev *dev, uint16_t nb_queues)
 		dev->data->tx_queues = rte_zmalloc("ethdev->tx_queues",
 				sizeof(dev->data->tx_queues[0]) * nb_queues,
 				RTE_CACHE_LINE_SIZE);
-		if (dev->data->tx_queues == NULL) {
+		if (dev->data->tx_queues == NULL && nb_queues > 0) {
 			dev->data->nb_tx_queues = 0;
 			return -(ENOMEM);
 		}
@@ -731,7 +731,10 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 	}
 	if (nb_rx_q == 0) {
 		PMD_DEBUG_TRACE("ethdev port_id=%d nb_rx_q == 0\n", port_id);
-		return (-EINVAL);
+		/* In SRIOV there can be no free resource for PF. So permit use only
+		 * for configuration. */
+		if (RTE_ETH_DEV_SRIOV(dev).active == 0)
+			return (-EINVAL);
 	}
 
 	if (nb_tx_q > dev_info.max_tx_queues) {
@@ -739,9 +742,13 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 				port_id, nb_tx_q, dev_info.max_tx_queues);
 		return (-EINVAL);
 	}
+
 	if (nb_tx_q == 0) {
 		PMD_DEBUG_TRACE("ethdev port_id=%d nb_tx_q == 0\n", port_id);
-		return (-EINVAL);
+		/* In SRIOV there can be no free resource for PF. So permit use only
+		 * for configuration. */
+		if (RTE_ETH_DEV_SRIOV(dev).active == 0)
+			return (-EINVAL);
 	}
 
 	/* Copy the dev_conf parameter into the dev structure */
-- 
1.7.9.5

[dpdk-dev] [PATCH v2 2/4] ethdev: prevent changing of nb_q_per_pool in rte_eth_dev_check_mq_mode()

[Pawel Wodkowski]

If SRIOV is used and device configuration does not use MQ the
RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool is set to 1 in
rte_eth_dev_check_mq_mode().
This is bad becouse of two reasons:
1. Port reconfiguration from non-MQ mode to MQ mode is impossible
2. Confguring RX and TX side in different way is impossible.

This patch fix first issue by not changing
RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool
and second by comparing nb_q_per_pool separately for RX
(nb_rx_q_per_pool) and
for TX (nb_tx_q_per_pool).

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 lib/librte_ether/rte_ethdev.c |   16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 62d7f6e..85385f8 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -548,6 +548,9 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 			return (-EINVAL);
 		}
 
+		uint16_t nb_rx_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
+		uint16_t nb_tx_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
+
 		switch (dev_conf->rxmode.mq_mode) {
 		case ETH_MQ_RX_VMDQ_DCB:
 		case ETH_MQ_RX_VMDQ_DCB_RSS:
@@ -580,8 +583,8 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		default: /* ETH_MQ_RX_VMDQ_ONLY or ETH_MQ_RX_NONE */
 			/* if nothing mq mode configure, use default scheme */
 			dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_ONLY;
-			if (RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool > 1)
-				RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = 1;
+			if (nb_rx_q_per_pool > 1)
+				nb_rx_q_per_pool = 1;
 			break;
 		}
 
@@ -596,15 +599,16 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
 			/* if nothing mq mode configure, use default scheme */
 			dev->data->dev_conf.txmode.mq_mode = ETH_MQ_TX_VMDQ_ONLY;
+			if (nb_tx_q_per_pool > 1)
+				nb_tx_q_per_pool = 1;
 			break;
 		}
 
 		/* check valid queue number */
-		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool) ||
-		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool)) {
+		if (nb_rx_q > nb_rx_q_per_pool || nb_tx_q > nb_tx_q_per_pool) {
 			PMD_DEBUG_TRACE("ethdev port_id=%d SRIOV active, "
-				    "queue number must less equal to %d\n",
-					port_id, RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool);
+					"rx/tx queue number must less or equal to %d/%d\n",
+					port_id, nb_rx_q_per_pool, nb_tx_q_per_pool);
 			return (-EINVAL);
 		}
 	} else {
-- 
1.7.9.5

Re: [dpdk-dev] [PATCH v2 2/4] ethdev: prevent changing of nb_q_per_pool in rte_eth_dev_check_mq_mode()

[Ouyang, Changchun]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pawel Wodkowski
> Sent: Monday, January 19, 2015 9:02 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v2 2/4] ethdev: prevent changing of
> nb_q_per_pool in rte_eth_dev_check_mq_mode()
> 
> If SRIOV is used and device configuration does not use MQ the
> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool is set to 1 in
> rte_eth_dev_check_mq_mode().
> This is bad becouse of two reasons:
> 1. Port reconfiguration from non-MQ mode to MQ mode is impossible 2.
> Confguring RX and TX side in different way is impossible.
> 

This case is possible:
rxmode.mq_mode is ETH_MQ_RX_VMDQ_RSS, and txmode.mq_mode is ETH_MQ_TX_NONE.

Re: [dpdk-dev] [PATCH v2 2/4] ethdev: prevent changing of nb_q_per_pool in rte_eth_dev_check_mq_mode()

[Wodkowski, PawelX]

> -----Original Message-----
> From: Ouyang, Changchun
> Sent: Tuesday, January 20, 2015 2:33 AM
> To: Wodkowski, PawelX; dev@dpdk.org
> Cc: Ouyang, Changchun
> Subject: RE: [dpdk-dev] [PATCH v2 2/4] ethdev: prevent changing of
> nb_q_per_pool in rte_eth_dev_check_mq_mode()
> 
> 
> 
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pawel Wodkowski
> > Sent: Monday, January 19, 2015 9:02 PM
> > To: dev@dpdk.org
> > Subject: [dpdk-dev] [PATCH v2 2/4] ethdev: prevent changing of
> > nb_q_per_pool in rte_eth_dev_check_mq_mode()
> >
> > If SRIOV is used and device configuration does not use MQ the
> > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool is set to 1 in
> > rte_eth_dev_check_mq_mode().
> > This is bad becouse of two reasons:
> > 1. Port reconfiguration from non-MQ mode to MQ mode is impossible 2.
> > Confguring RX and TX side in different way is impossible.
> >
> 
> This case is possible:
> rxmode.mq_mode is ETH_MQ_RX_VMDQ_RSS, and txmode.mq_mode is
> ETH_MQ_TX_NONE.
> 
but ETH_MQ_RX_NONE -> ETH_MQ_RX_VMDQ_RSS is not. 

I have 8 VFs
In testpmd

testpmd> port config all rxq 2
port config all rxq 2

testpmd> port start 0
port start 0

Configuring Port 0 (socket 0)
Fail to configure port 0
testpmd> port config all rxq 4
port config all rxq 4

testpmd> port start 0
port start 0

Configuring Port 0 (socket 0)
Fail to configure port 0
testpmd> port config all rxq 8
port config all rxq 8

testpmd> port start all
port start all

Configuring Port 0 (socket 0)
Fail to configure port 0
testpmd> port config all rxq 1
port config all rxq 1

testpmd> port start 0
port start 0

Configuring Port 0 (socket 0)
PMD: ixgbe_dev_tx_queue_setup(): sw_ring=0x7ffec0ae9140 hw_ring=0x7ffec2c0bf00 dma_addr=0x102c0bf00
PMD: set_tx_function(): Using full-featured tx code path
PMD: set_tx_function():  - txq_flags = 0 [IXGBE_SIMPLE_FLAGS=f01]
PMD: set_tx_function():  - tx_rs_thresh = 32 [RTE_PMD_IXGBE_TX_MAX_BURST=32]
PMD: ixgbe_dev_rx_queue_setup(): sw_ring=0x7ffec0ae88c0 hw_ring=0x7ffec2c1bf00 dma_addr=0x102c1bf00
PMD: ixgbe_dev_rx_queue_setup(): Rx Burst Bulk Alloc Preconditions are satisfied. Rx Burst Bulk Alloc function will be used on port=0, queue=0.
PMD: ixgbe_dev_rx_queue_setup(): Vector rx enabled, please make sure RX burst size no less than 32.
Port 0: 00:1B:21:C7:33:B0
Checking link statuses...
Port 0 Link Up - speed 10000 Mbps - full-duplex
Port 1 Link Down
Done
testpmd>

Please refer to RSS patch thread. I will post there second reply.

Pawel

[dpdk-dev] [PATCH v2 3/4] pmd: add support for DCB in SRIOV mode for ixgbe driver.

[Pawel Wodkowski]

Add support for DCB in SRIOV mode. When no PFC is enabled this feature
might be used as multiple queues for VF (up to 8 queues if VFs num is
less or equal 16 or 4 if FVs num is less or equal 32).

The PF must initializes RX in ETH_MQ_RX_VMDQ_DCB and TX in
ETH_MQ_TX_VMDQ_DCB.
VF should initialize Rx in ETH_MQ_RX_DCB and Tx in ETH_MQ_TX_DCB to use
multiple queues and/or DCB.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 lib/librte_ether/rte_ethdev.c     |   32 ++++++++++++++++------------
 lib/librte_ether/rte_ethdev.h     |    2 +-
 lib/librte_pmd_ixgbe/ixgbe_pf.c   |   42 +++++++++++++++++++++++++++----------
 lib/librte_pmd_ixgbe/ixgbe_rxtx.c |    7 +++----
 4 files changed, 54 insertions(+), 29 deletions(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 85385f8..115465e 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -532,6 +532,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		      const struct rte_eth_conf *dev_conf)
 {
 	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+	struct rte_eth_dev_info dev_info;
 
 	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
 		/* check multi-queue mode */
@@ -553,8 +554,9 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 
 		switch (dev_conf->rxmode.mq_mode) {
 		case ETH_MQ_RX_VMDQ_DCB:
+			break;
 		case ETH_MQ_RX_VMDQ_DCB_RSS:
-			/* DCB/RSS VMDQ in SRIOV mode, not implement yet */
+			/* DCB+RSS VMDQ in SRIOV mode, not implement yet */
 			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
 					" SRIOV active, "
 					"unsupported VMDQ mq_mode rx %u\n",
@@ -589,13 +591,8 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		}
 
 		switch (dev_conf->txmode.mq_mode) {
-		case ETH_MQ_TX_VMDQ_DCB:
-			/* DCB VMDQ in SRIOV mode, not implement yet */
-			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
-					" SRIOV active, "
-					"unsupported VMDQ mq_mode tx %u\n",
-					port_id, dev_conf->txmode.mq_mode);
-			return (-EINVAL);
+		case ETH_MQ_TX_VMDQ_DCB: /* DCB VMDQ in SRIOV mode*/
+			break;
 		default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
 			/* if nothing mq mode configure, use default scheme */
 			dev->data->dev_conf.txmode.mq_mode = ETH_MQ_TX_VMDQ_ONLY;
@@ -612,7 +609,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 			return (-EINVAL);
 		}
 	} else {
-		/* For vmdb+dcb mode check our configuration before we go further */
+		/* For vmdq+dcb mode check our configuration before we go further */
 		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) {
 			const struct rte_eth_vmdq_dcb_conf *conf;
 
@@ -651,11 +648,20 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 			}
 		}
 
-		/* For DCB mode check our configuration before we go further */
+		/* For DCB we need to obtain maximum number of queues dinamically,
+		 * as this depends on max VF exported in PF */
+		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
+			(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
+
+				FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
+				(*dev->dev_ops->dev_infos_get)(dev, &dev_info);
+		}
+
+		/* For DCB mode check out configuration before we go further */
 		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
 			const struct rte_eth_dcb_rx_conf *conf;
 
-			if (nb_rx_q != ETH_DCB_NUM_QUEUES) {
+			if (nb_rx_q != dev_info.max_rx_queues) {
 				PMD_DEBUG_TRACE("ethdev port_id=%d DCB, nb_rx_q "
 						"!= %d\n",
 						port_id, ETH_DCB_NUM_QUEUES);
@@ -675,7 +681,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
 			const struct rte_eth_dcb_tx_conf *conf;
 
-			if (nb_tx_q != ETH_DCB_NUM_QUEUES) {
+			if (nb_tx_q != dev_info.max_tx_queues) {
 				PMD_DEBUG_TRACE("ethdev port_id=%d DCB, nb_tx_q "
 						"!= %d\n",
 						port_id, ETH_DCB_NUM_QUEUES);
@@ -802,7 +808,7 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 							ETHER_MAX_LEN;
 	}
 
-	/* multipe queue mode checking */
+	/* multiple queue mode checking */
 	diag = rte_eth_dev_check_mq_mode(port_id, nb_rx_q, nb_tx_q, dev_conf);
 	if (diag != 0) {
 		PMD_DEBUG_TRACE("port%d rte_eth_dev_check_mq_mode = %d\n",
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index ce0528f..6df3f29 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -299,7 +299,7 @@ enum rte_eth_rx_mq_mode {
 enum rte_eth_tx_mq_mode {
 	ETH_MQ_TX_NONE    = 0,  /**< It is in neither DCB nor VT mode. */
 	ETH_MQ_TX_DCB,          /**< For TX side,only DCB is on. */
-	ETH_MQ_TX_VMDQ_DCB,	/**< For TX side,both DCB and VT is on. */
+	ETH_MQ_TX_VMDQ_DCB,     /**< For TX side,both DCB and VT is on. */
 	ETH_MQ_TX_VMDQ_ONLY,    /**< Only VT on, no DCB */
 };
 
diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c b/lib/librte_pmd_ixgbe/ixgbe_pf.c
index 93f6e43..b5f570d 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
@@ -231,19 +231,19 @@ int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
 	}
 
 	IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
-        IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
+	IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
 
-        /*
+	/*
 	 * enable vlan filtering and allow all vlan tags through
 	 */
-        vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
-        vlanctrl |= IXGBE_VLNCTRL_VFE ; /* enable vlan filters */
-        IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
+	vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
+	vlanctrl |= IXGBE_VLNCTRL_VFE ; /* enable vlan filters */
+	IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
 
-        /* VFTA - enable all vlan filters */
-        for (i = 0; i < IXGBE_MAX_VFTA; i++) {
-                IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
-        }
+	/* VFTA - enable all vlan filters */
+	for (i = 0; i < IXGBE_MAX_VFTA; i++) {
+		IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
+	}
 
 	/* Enable MAC Anti-Spoofing */
 	hw->mac.ops.set_mac_anti_spoofing(hw, FALSE, vf_num);
@@ -513,6 +513,7 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
 	struct ixgbe_vf_info *vfinfo =
 		*IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
 	uint32_t default_q = vf * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
+	uint8_t pools;
 
 	/* Verify if the PF supports the mbox APIs version or not */
 	switch (vfinfo[vf].api_version) {
@@ -524,8 +525,27 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
 	}
 
 	/* Notify VF of Rx and Tx queue number */
-	msgbuf[IXGBE_VF_RX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
-	msgbuf[IXGBE_VF_TX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
+	if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) {
+		pools = dev->data->dev_conf.rx_adv_conf.vmdq_dcb_conf.nb_queue_pools;
+		if (pools <= 16)
+			msgbuf[IXGBE_VF_RX_QUEUES] = 8;
+		else if (pools <= 32)
+			msgbuf[IXGBE_VF_RX_QUEUES] = 4;
+		else
+			msgbuf[IXGBE_VF_RX_QUEUES] = 1;
+	} else
+		msgbuf[IXGBE_VF_RX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
+
+	if (dev->data->dev_conf.txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB) {
+		pools = dev->data->dev_conf.tx_adv_conf.vmdq_dcb_tx_conf.nb_queue_pools;
+		if (pools <= 16)
+			msgbuf[IXGBE_VF_TX_QUEUES] = 8;
+		else if (pools <= 32)
+			msgbuf[IXGBE_VF_TX_QUEUES] = 4;
+		else
+			msgbuf[IXGBE_VF_TX_QUEUES] = 1;
+	} else
+		msgbuf[IXGBE_VF_TX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
 
 	/* Notify VF of default queue */
 	msgbuf[IXGBE_VF_DEF_QUEUE] = default_q;
diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
index 840bc07..eaed280 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
@@ -3166,10 +3166,9 @@ void ixgbe_configure_dcb(struct rte_eth_dev *dev)
 
 	/* check support mq_mode for DCB */
 	if ((dev_conf->rxmode.mq_mode != ETH_MQ_RX_VMDQ_DCB) &&
-	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB))
-		return;
-
-	if (dev->data->nb_rx_queues != ETH_DCB_NUM_QUEUES)
+	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB) &&
+	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_VMDQ_DCB) &&
+	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_DCB))
 		return;
 
 	/** Configure DCB hardware **/
-- 
1.7.9.5

Re: [dpdk-dev] [PATCH v2 3/4] pmd: add support for DCB in SRIOV mode for ixgbe driver.

[Ouyang, Changchun]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pawel Wodkowski
> Sent: Monday, January 19, 2015 9:03 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v2 3/4] pmd: add support for DCB in SRIOV
> mode for ixgbe driver.
> 
> Add support for DCB in SRIOV mode. When no PFC is enabled this feature
> might be used as multiple queues for VF (up to 8 queues if VFs num is less or
> equal 16 or 4 if FVs num is less or equal 32).
> 
> The PF must initializes RX in ETH_MQ_RX_VMDQ_DCB and TX in
> ETH_MQ_TX_VMDQ_DCB.
> VF should initialize Rx in ETH_MQ_RX_DCB and Tx in ETH_MQ_TX_DCB to use
> multiple queues and/or DCB.
> 
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> ---
>  lib/librte_ether/rte_ethdev.c     |   32 ++++++++++++++++------------
>  lib/librte_ether/rte_ethdev.h     |    2 +-
>  lib/librte_pmd_ixgbe/ixgbe_pf.c   |   42 +++++++++++++++++++++++++++--
> --------
>  lib/librte_pmd_ixgbe/ixgbe_rxtx.c |    7 +++----
>  4 files changed, 54 insertions(+), 29 deletions(-)
> 
> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
> index 85385f8..115465e 100644
> --- a/lib/librte_ether/rte_ethdev.c
> +++ b/lib/librte_ether/rte_ethdev.c
> @@ -532,6 +532,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id,
> uint16_t nb_rx_q, uint16_t nb_tx_q,
>  		      const struct rte_eth_conf *dev_conf)  {
>  	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
> +	struct rte_eth_dev_info dev_info;
> 
>  	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
>  		/* check multi-queue mode */
> @@ -553,8 +554,9 @@ rte_eth_dev_check_mq_mode(uint8_t port_id,
> uint16_t nb_rx_q, uint16_t nb_tx_q,
> 
>  		switch (dev_conf->rxmode.mq_mode) {
>  		case ETH_MQ_RX_VMDQ_DCB:
> +			break;
>  		case ETH_MQ_RX_VMDQ_DCB_RSS:
> -			/* DCB/RSS VMDQ in SRIOV mode, not implement
> yet */
> +			/* DCB+RSS VMDQ in SRIOV mode, not implement
> yet */
>  			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
>  					" SRIOV active, "
>  					"unsupported VMDQ mq_mode
> rx %u\n", @@ -589,13 +591,8 @@ rte_eth_dev_check_mq_mode(uint8_t
> port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>  		}
> 
>  		switch (dev_conf->txmode.mq_mode) {
> -		case ETH_MQ_TX_VMDQ_DCB:
> -			/* DCB VMDQ in SRIOV mode, not implement yet */
> -			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
> -					" SRIOV active, "
> -					"unsupported VMDQ mq_mode
> tx %u\n",
> -					port_id, dev_conf-
> >txmode.mq_mode);
> -			return (-EINVAL);
> +		case ETH_MQ_TX_VMDQ_DCB: /* DCB VMDQ in SRIOV
> mode*/
> +			break;
>  		default: /* ETH_MQ_TX_VMDQ_ONLY or
> ETH_MQ_TX_NONE */
>  			/* if nothing mq mode configure, use default scheme
> */
>  			dev->data->dev_conf.txmode.mq_mode =
> ETH_MQ_TX_VMDQ_ONLY; @@ -612,7 +609,7 @@
> rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t
> nb_tx_q,
>  			return (-EINVAL);
>  		}
>  	} else {
> -		/* For vmdb+dcb mode check our configuration before we
> go further */
> +		/* For vmdq+dcb mode check our configuration before we
> go further */
>  		if (dev_conf->rxmode.mq_mode ==
> ETH_MQ_RX_VMDQ_DCB) {
>  			const struct rte_eth_vmdq_dcb_conf *conf;
> 
> @@ -651,11 +648,20 @@ rte_eth_dev_check_mq_mode(uint8_t port_id,
> uint16_t nb_rx_q, uint16_t nb_tx_q,
>  			}
>  		}
> 
> -		/* For DCB mode check our configuration before we go
> further */
> +		/* For DCB we need to obtain maximum number of queues
> dinamically,
> +		 * as this depends on max VF exported in PF */
> +		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
> +			(dev_conf->txmode.mq_mode ==
> ETH_MQ_TX_DCB)) {
> +
> +				FUNC_PTR_OR_ERR_RET(*dev->dev_ops-
> >dev_infos_get, -ENOTSUP);
> +				(*dev->dev_ops->dev_infos_get)(dev,
> &dev_info);
> +		}
> +
> +		/* For DCB mode check out configuration before we go
> further */
>  		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
>  			const struct rte_eth_dcb_rx_conf *conf;
> 
> -			if (nb_rx_q != ETH_DCB_NUM_QUEUES) {
> +			if (nb_rx_q != dev_info.max_rx_queues) {
>  				PMD_DEBUG_TRACE("ethdev port_id=%d
> DCB, nb_rx_q "
>  						"!= %d\n",
>  						port_id,
> ETH_DCB_NUM_QUEUES);
> @@ -675,7 +681,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id,
> uint16_t nb_rx_q, uint16_t nb_tx_q,
>  		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
>  			const struct rte_eth_dcb_tx_conf *conf;
> 
> -			if (nb_tx_q != ETH_DCB_NUM_QUEUES) {
> +			if (nb_tx_q != dev_info.max_tx_queues) {
>  				PMD_DEBUG_TRACE("ethdev port_id=%d
> DCB, nb_tx_q "
>  						"!= %d\n",
>  						port_id,
> ETH_DCB_NUM_QUEUES);
> @@ -802,7 +808,7 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t
> nb_rx_q, uint16_t nb_tx_q,
>  							ETHER_MAX_LEN;
>  	}
> 
> -	/* multipe queue mode checking */
> +	/* multiple queue mode checking */
>  	diag = rte_eth_dev_check_mq_mode(port_id, nb_rx_q, nb_tx_q,
> dev_conf);
>  	if (diag != 0) {
>  		PMD_DEBUG_TRACE("port%d
> rte_eth_dev_check_mq_mode = %d\n", diff --git
> a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index
> ce0528f..6df3f29 100644
> --- a/lib/librte_ether/rte_ethdev.h
> +++ b/lib/librte_ether/rte_ethdev.h
> @@ -299,7 +299,7 @@ enum rte_eth_rx_mq_mode {  enum
> rte_eth_tx_mq_mode {
>  	ETH_MQ_TX_NONE    = 0,  /**< It is in neither DCB nor VT mode. */
>  	ETH_MQ_TX_DCB,          /**< For TX side,only DCB is on. */
> -	ETH_MQ_TX_VMDQ_DCB,	/**< For TX side,both DCB and VT is
> on. */
> +	ETH_MQ_TX_VMDQ_DCB,     /**< For TX side,both DCB and VT is on.
> */
>  	ETH_MQ_TX_VMDQ_ONLY,    /**< Only VT on, no DCB */
>  };
> 
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c
> b/lib/librte_pmd_ixgbe/ixgbe_pf.c index 93f6e43..b5f570d 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
> @@ -231,19 +231,19 @@ int ixgbe_pf_host_configure(struct rte_eth_dev
> *eth_dev)
>  	}
> 
>  	IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
> -        IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
> +	IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
> 
> -        /*
> +	/*
>  	 * enable vlan filtering and allow all vlan tags through
>  	 */
> -        vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
> -        vlanctrl |= IXGBE_VLNCTRL_VFE ; /* enable vlan filters */
> -        IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
> +	vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
> +	vlanctrl |= IXGBE_VLNCTRL_VFE ; /* enable vlan filters */
> +	IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);

It is better to use a separate cleanup patch for this indention fix.
 
> -        /* VFTA - enable all vlan filters */
> -        for (i = 0; i < IXGBE_MAX_VFTA; i++) {
> -                IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
> -        }
> +	/* VFTA - enable all vlan filters */
> +	for (i = 0; i < IXGBE_MAX_VFTA; i++) {
> +		IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
> +	}
> 
>  	/* Enable MAC Anti-Spoofing */
>  	hw->mac.ops.set_mac_anti_spoofing(hw, FALSE, vf_num); @@ -
> 513,6 +513,7 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf,
> uint32_t *msgbuf)
>  	struct ixgbe_vf_info *vfinfo =
>  		*IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data-
> >dev_private);
>  	uint32_t default_q = vf * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
> +	uint8_t pools;
> 
>  	/* Verify if the PF supports the mbox APIs version or not */
>  	switch (vfinfo[vf].api_version) {
> @@ -524,8 +525,27 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev,
> uint32_t vf, uint32_t *msgbuf)
>  	}
> 
>  	/* Notify VF of Rx and Tx queue number */
> -	msgbuf[IXGBE_VF_RX_QUEUES] =
> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
> -	msgbuf[IXGBE_VF_TX_QUEUES] =
> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
> +	if (dev->data->dev_conf.rxmode.mq_mode ==
> ETH_MQ_RX_VMDQ_DCB) {
> +		pools = dev->data-
> >dev_conf.rx_adv_conf.vmdq_dcb_conf.nb_queue_pools;
> +		if (pools <= 16)
> +			msgbuf[IXGBE_VF_RX_QUEUES] = 8;
> +		else if (pools <= 32)
> +			msgbuf[IXGBE_VF_RX_QUEUES] = 4;
> +		else
> +			msgbuf[IXGBE_VF_RX_QUEUES] = 1;
> +	} else
> +		msgbuf[IXGBE_VF_RX_QUEUES] =
> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
> +
> +	if (dev->data->dev_conf.txmode.mq_mode ==
> ETH_MQ_TX_VMDQ_DCB) {
> +		pools = dev->data-
> >dev_conf.tx_adv_conf.vmdq_dcb_tx_conf.nb_queue_pools;
> +		if (pools <= 16)
> +			msgbuf[IXGBE_VF_TX_QUEUES] = 8;
> +		else if (pools <= 32)
> +			msgbuf[IXGBE_VF_TX_QUEUES] = 4;
> +		else
> +			msgbuf[IXGBE_VF_TX_QUEUES] = 1;

Is there any logic to make sure msgbuf[IXGBE_VF_TX_QUEUES] and RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool
Have consistent value? Do we need a check here?

> +	} else
> +		msgbuf[IXGBE_VF_TX_QUEUES] =
> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
> 
>  	/* Notify VF of default queue */
>  	msgbuf[IXGBE_VF_DEF_QUEUE] = default_q; diff --git
> a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> index 840bc07..eaed280 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> @@ -3166,10 +3166,9 @@ void ixgbe_configure_dcb(struct rte_eth_dev
> *dev)
> 
>  	/* check support mq_mode for DCB */
>  	if ((dev_conf->rxmode.mq_mode != ETH_MQ_RX_VMDQ_DCB) &&
> -	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB))
> -		return;
> -
> -	if (dev->data->nb_rx_queues != ETH_DCB_NUM_QUEUES)
> +	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB) &&
> +	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_VMDQ_DCB) &&
> +	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_DCB))
>  		return;
> 
>  	/** Configure DCB hardware **/
> --
> 1.7.9.5

Re: [dpdk-dev] [PATCH v2 3/4] pmd: add support for DCB in SRIOV mode for ixgbe driver.

[Thomas Monjalon]

2015-01-19 14:02, Pawel Wodkowski:
> Add support for DCB in SRIOV mode. When no PFC is enabled this feature
> might be used as multiple queues for VF (up to 8 queues if VFs num is
> less or equal 16 or 4 if FVs num is less or equal 32).
> 
> The PF must initializes RX in ETH_MQ_RX_VMDQ_DCB and TX in
> ETH_MQ_TX_VMDQ_DCB.
> VF should initialize Rx in ETH_MQ_RX_DCB and Tx in ETH_MQ_TX_DCB to use
> multiple queues and/or DCB.
> 
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>

[...]

> --- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
> @@ -231,19 +231,19 @@ int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
>  	}
>  
>  	IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
> -        IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
> +	IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
>  
> -        /*
> +	/*
>  	 * enable vlan filtering and allow all vlan tags through
>  	 */
> -        vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
> -        vlanctrl |= IXGBE_VLNCTRL_VFE ; /* enable vlan filters */
> -        IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
> +	vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
> +	vlanctrl |= IXGBE_VLNCTRL_VFE ; /* enable vlan filters */
> +	IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
>  
> -        /* VFTA - enable all vlan filters */
> -        for (i = 0; i < IXGBE_MAX_VFTA; i++) {
> -                IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
> -        }
> +	/* VFTA - enable all vlan filters */
> +	for (i = 0; i < IXGBE_MAX_VFTA; i++) {
> +		IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
> +	}

Please do not mix indent formatting with "real changes".
When looking for history of these lines, it would be difficult to understand
that this patch don't make real change. Having a dedicated cleanup commit is better.

Thanks
-- 
Thomas

[dpdk-dev] [PATCH v2 4/4] testpmd: fix dcb in vt mode

[Pawel Wodkowski]

This patch incorporate fixes to support DCB in SRIOV mode for testpmd.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 app/test-pmd/cmdline.c |    4 ++--
 app/test-pmd/testpmd.c |   39 +++++++++++++++++++++++++++++----------
 app/test-pmd/testpmd.h |   10 ----------
 3 files changed, 31 insertions(+), 22 deletions(-)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 4618b92..d6a18a9 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -1947,9 +1947,9 @@ cmd_config_dcb_parsed(void *parsed_result,
 
 	/* DCB in VT mode */
 	if (!strncmp(res->vt_en, "on",2))
-		dcb_conf.dcb_mode = DCB_VT_ENABLED;
+		dcb_conf.vt_en = 1;
 	else
-		dcb_conf.dcb_mode = DCB_ENABLED;
+		dcb_conf.vt_en = 0;
 
 	if (!strncmp(res->pfc_en, "on",2)) {
 		dcb_conf.pfc_en = 1;
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 773b8af..9b12c25 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -1743,7 +1743,8 @@ const uint16_t vlan_tags[] = {
 };
 
 static  int
-get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
+get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf,
+	uint16_t sriov)
 {
         uint8_t i;
 
@@ -1751,7 +1752,7 @@ get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
  	 * Builds up the correct configuration for dcb+vt based on the vlan tags array
  	 * given above, and the number of traffic classes available for use.
  	 */
-	if (dcb_conf->dcb_mode == DCB_VT_ENABLED) {
+	if (dcb_conf->vt_en == 1) {
 		struct rte_eth_vmdq_dcb_conf vmdq_rx_conf;
 		struct rte_eth_vmdq_dcb_tx_conf vmdq_tx_conf;
 
@@ -1768,9 +1769,17 @@ get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
 			vmdq_rx_conf.pool_map[i].vlan_id = vlan_tags[ i ];
 			vmdq_rx_conf.pool_map[i].pools = 1 << (i % vmdq_rx_conf.nb_queue_pools);
 		}
-		for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
-			vmdq_rx_conf.dcb_queue[i] = i;
-			vmdq_tx_conf.dcb_queue[i] = i;
+
+		if (sriov == 0) {
+			for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
+				vmdq_rx_conf.dcb_queue[i] = i;
+				vmdq_tx_conf.dcb_queue[i] = i;
+			}
+		} else {
+			for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
+				vmdq_rx_conf.dcb_queue[i] = i % dcb_conf->num_tcs;
+				vmdq_tx_conf.dcb_queue[i] = i % dcb_conf->num_tcs;
+			}
 		}
 
 		/*set DCB mode of RX and TX of multiple queues*/
@@ -1828,22 +1837,32 @@ init_port_dcb_config(portid_t pid,struct dcb_config *dcb_conf)
 	uint16_t nb_vlan;
 	uint16_t i;
 
-	/* rxq and txq configuration in dcb mode */
-	nb_rxq = 128;
-	nb_txq = 128;
 	rx_free_thresh = 64;
 
+	rte_port = &ports[pid];
 	memset(&port_conf,0,sizeof(struct rte_eth_conf));
 	/* Enter DCB configuration status */
 	dcb_config = 1;
 
 	nb_vlan = sizeof( vlan_tags )/sizeof( vlan_tags[ 0 ]);
 	/*set configuration of DCB in vt mode and DCB in non-vt mode*/
-	retval = get_eth_dcb_conf(&port_conf, dcb_conf);
+	retval = get_eth_dcb_conf(&port_conf, dcb_conf, rte_port->dev_info.max_vfs);
+
+	/* rxq and txq configuration in dcb mode */
+	nb_rxq = rte_port->dev_info.max_rx_queues;
+	nb_txq = rte_port->dev_info.max_tx_queues;
+
+	if (rte_port->dev_info.max_vfs) {
+		if (port_conf.rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB)
+			nb_rxq /= port_conf.rx_adv_conf.vmdq_dcb_conf.nb_queue_pools;
+
+		if (port_conf.txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB)
+			nb_txq /= port_conf.tx_adv_conf.vmdq_dcb_tx_conf.nb_queue_pools;
+	}
+
 	if (retval < 0)
 		return retval;
 
-	rte_port = &ports[pid];
 	memcpy(&rte_port->dev_conf, &port_conf,sizeof(struct rte_eth_conf));
 
 	rte_port->rx_conf.rx_thresh = rx_thresh;
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index 8f5e6c7..695e893 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -227,20 +227,10 @@ struct fwd_config {
 	portid_t   nb_fwd_ports;    /**< Nb. of ports involved. */
 };
 
-/**
- * DCB mode enable
- */
-enum dcb_mode_enable
-{
-	DCB_VT_ENABLED,
-	DCB_ENABLED
-};
-
 /*
  * DCB general config info
  */
 struct dcb_config {
-	enum dcb_mode_enable dcb_mode;
 	uint8_t vt_en;
 	enum rte_eth_nb_tcs num_tcs;
 	uint8_t pfc_en;
-- 
1.7.9.5

[dpdk-dev] [PATCH v4 0/7] Enable DCB in SRIOV mode for ixgbe driver

[Pawel Wodkowski]

This patchset enables DCB in SRIOV (ETH_MQ_RX_VMDQ_DCB and ETH_MQ_TX_VMDQ_DCB)
for each VF and PF for ixgbe driver.

As a side effect this allow to use multiple queues for TX in VF (8 if there is
16 or less VFs or 4 if there is 32 or less VFs) when PFC is not enabled.

PATCH v4 changes:
 - resend patch as previous was sent by mistake with different one.

PATCH v3 changes:
 - Rework patch to fit ixgbe RSS in VT mode changes.
 - move driver specific code from rte_ethdev.c to driver code.
 - fix bug ixgbe driver VLAN filter enable in PF discoveded during testing.
 
PATCH v2 changes:
 - Split patch for easer review.
 - Remove "pmd: add api version negotiation for ixgbe driver" and "pmd: extend
  mailbox api to report number of RX/TX queues" patches as those are already 
  already marged from other patch

Pawel Wodkowski (7):
  ethdev: Allow zero rx/tx queues in SRIOV mode
  pmd igb: fix VMDQ mode checking
  pmd: igb/ixgbe split nb_q_per_pool to rx and tx nb_q_per_pool
  move rte_eth_dev_check_mq_mode() logic to ixgbe driver
  pmd ixgbe: enable DCB in SRIOV
  tespmd: fix DCB in SRIOV mode support
  pmd ixgbe: fix vlan setting in in PF

 app/test-pmd/cmdline.c              |   4 +-
 app/test-pmd/testpmd.c              |  39 +++++--
 app/test-pmd/testpmd.h              |  10 --
 lib/librte_ether/rte_ethdev.c       | 212 ++--------------------------------
 lib/librte_ether/rte_ethdev.h       |   3 +-
 lib/librte_pmd_e1000/igb_ethdev.c   |  45 +++++++-
 lib/librte_pmd_e1000/igb_pf.c       |   3 +-
 lib/librte_pmd_e1000/igb_rxtx.c     |   2 +-
 lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 126 ++++++++++++++++++---
 lib/librte_pmd_ixgbe/ixgbe_ethdev.h |   5 +-
 lib/librte_pmd_ixgbe/ixgbe_pf.c     | 220 +++++++++++++++++++++++++++++++-----
 lib/librte_pmd_ixgbe/ixgbe_rxtx.c   |  18 +--
 12 files changed, 407 insertions(+), 280 deletions(-)

-- 
1.9.1

[dpdk-dev] [PATCH v4 1/7] ethdev: Allow zero rx/tx queues in SRIOV mode

[Pawel Wodkowski]

Allow zero rx/tx queues to be passed to rte_eth_dev_configure(). This
way PF might be used only for configuration purpose when no receive
and/or transmit functionality is needed.

Rationale:
in SRIOV mode PF use first free VF to RX/TX (at least ixgbe based NICs).
For example: if using 82599EB based NIC and VF count is 16, 32 or 64 all
recources are assigned to VFs so PF might be used only for configuration
purpose.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 lib/librte_ether/rte_ethdev.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index ea3a1fb..2e814db 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -333,7 +333,7 @@ rte_eth_dev_rx_queue_config(struct rte_eth_dev *dev, uint16_t nb_queues)
 		dev->data->rx_queues = rte_zmalloc("ethdev->rx_queues",
 				sizeof(dev->data->rx_queues[0]) * nb_queues,
 				RTE_CACHE_LINE_SIZE);
-		if (dev->data->rx_queues == NULL) {
+		if (dev->data->rx_queues == NULL && nb_queues > 0) {
 			dev->data->nb_rx_queues = 0;
 			return -(ENOMEM);
 		}
@@ -475,7 +475,7 @@ rte_eth_dev_tx_queue_config(struct rte_eth_dev *dev, uint16_t nb_queues)
 		dev->data->tx_queues = rte_zmalloc("ethdev->tx_queues",
 				sizeof(dev->data->tx_queues[0]) * nb_queues,
 				RTE_CACHE_LINE_SIZE);
-		if (dev->data->tx_queues == NULL) {
+		if (dev->data->tx_queues == NULL && nb_queues > 0) {
 			dev->data->nb_tx_queues = 0;
 			return -(ENOMEM);
 		}
@@ -731,7 +731,10 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 	}
 	if (nb_rx_q == 0) {
 		PMD_DEBUG_TRACE("ethdev port_id=%d nb_rx_q == 0\n", port_id);
-		return (-EINVAL);
+		/* In SRIOV there can be no free resource for PF. So permit use only
+		 * for configuration. */
+		if (RTE_ETH_DEV_SRIOV(dev).active == 0)
+			return (-EINVAL);
 	}
 
 	if (nb_tx_q > dev_info.max_tx_queues) {
@@ -739,9 +742,13 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 				port_id, nb_tx_q, dev_info.max_tx_queues);
 		return (-EINVAL);
 	}
+
 	if (nb_tx_q == 0) {
 		PMD_DEBUG_TRACE("ethdev port_id=%d nb_tx_q == 0\n", port_id);
-		return (-EINVAL);
+		/* In SRIOV there can be no free resource for PF. So permit use only
+		 * for configuration. */
+		if (RTE_ETH_DEV_SRIOV(dev).active == 0)
+			return (-EINVAL);
 	}
 
 	/* Copy the dev_conf parameter into the dev structure */
-- 
1.9.1

[dpdk-dev] [PATCH v4 2/7] pmd igb: fix VMDQ mode checking

[Pawel Wodkowski]

RX mode is an enum created by ORing flags. Change compare by value
to test a flag when enabling/disabling VLAN filtering during RX queue
setup.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 lib/librte_pmd_e1000/igb_ethdev.c | 2 +-
 lib/librte_pmd_e1000/igb_rxtx.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/librte_pmd_e1000/igb_ethdev.c b/lib/librte_pmd_e1000/igb_ethdev.c
index 2a268b8..d451086 100644
--- a/lib/librte_pmd_e1000/igb_ethdev.c
+++ b/lib/librte_pmd_e1000/igb_ethdev.c
@@ -816,7 +816,7 @@ eth_igb_start(struct rte_eth_dev *dev)
 			ETH_VLAN_EXTEND_MASK;
 	eth_igb_vlan_offload_set(dev, mask);
 
-	if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_VMDQ_ONLY) {
+	if ((dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_VMDQ_FLAG) != 0) {
 		/* Enable VLAN filter since VMDq always use VLAN filter */
 		igb_vmdq_vlan_hw_filter_enable(dev);
 	}
diff --git a/lib/librte_pmd_e1000/igb_rxtx.c b/lib/librte_pmd_e1000/igb_rxtx.c
index 5c394a9..79c458f 100644
--- a/lib/librte_pmd_e1000/igb_rxtx.c
+++ b/lib/librte_pmd_e1000/igb_rxtx.c
@@ -2150,7 +2150,7 @@ eth_igb_rx_init(struct rte_eth_dev *dev)
 		(hw->mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
 
 	/* Make sure VLAN Filters are off. */
-	if (dev->data->dev_conf.rxmode.mq_mode != ETH_MQ_RX_VMDQ_ONLY)
+	if ((dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_VMDQ_FLAG) == 0)
 		rctl &= ~E1000_RCTL_VFE;
 	/* Don't store bad packets. */
 	rctl &= ~E1000_RCTL_SBP;
-- 
1.9.1

[dpdk-dev] [PATCH v4 3/7] pmd: igb/ixgbe split nb_q_per_pool to rx and tx nb_q_per_pool

[Pawel Wodkowski]

rx and tx number of queue might be different if RX and TX are
configured in different mode. This allow to inform VF about
proper number of queues.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 lib/librte_ether/rte_ethdev.c       | 12 ++++++------
 lib/librte_ether/rte_ethdev.h       |  3 ++-
 lib/librte_pmd_e1000/igb_pf.c       |  3 ++-
 lib/librte_pmd_ixgbe/ixgbe_ethdev.c |  2 +-
 lib/librte_pmd_ixgbe/ixgbe_pf.c     |  9 +++++----
 5 files changed, 16 insertions(+), 13 deletions(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 2e814db..4007054 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -520,7 +520,7 @@ rte_eth_dev_check_vf_rss_rxq_num(uint8_t port_id, uint16_t nb_rx_q)
 		return -EINVAL;
 	}
 
-	RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = nb_rx_q;
+	RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool = nb_rx_q;
 	RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx =
 		dev->pci_dev->max_vfs * nb_rx_q;
 
@@ -567,7 +567,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 					dev->data->dev_conf.rxmode.mq_mode);
 		case ETH_MQ_RX_VMDQ_RSS:
 			dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_RSS;
-			if (nb_rx_q <= RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool)
+			if (nb_rx_q <= RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool)
 				if (rte_eth_dev_check_vf_rss_rxq_num(port_id, nb_rx_q) != 0) {
 					PMD_DEBUG_TRACE("ethdev port_id=%d"
 						" SRIOV active, invalid queue"
@@ -580,8 +580,8 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		default: /* ETH_MQ_RX_VMDQ_ONLY or ETH_MQ_RX_NONE */
 			/* if nothing mq mode configure, use default scheme */
 			dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_ONLY;
-			if (RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool > 1)
-				RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = 1;
+			if (RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool > 1)
+				RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool = 1;
 			break;
 		}
 
@@ -600,8 +600,8 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		}
 
 		/* check valid queue number */
-		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool) ||
-		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool)) {
+		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool) ||
+		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool)) {
 			PMD_DEBUG_TRACE("ethdev port_id=%d SRIOV active, "
 				    "queue number must less equal to %d\n",
 					port_id, RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool);
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 84160c3..af86401 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1544,7 +1544,8 @@ struct rte_eth_dev {
 
 struct rte_eth_dev_sriov {
 	uint8_t active;               /**< SRIOV is active with 16, 32 or 64 pools */
-	uint8_t nb_q_per_pool;        /**< rx queue number per pool */
+	uint8_t nb_rx_q_per_pool;        /**< rx queue number per pool */
+	uint8_t nb_tx_q_per_pool;        /**< tx queue number per pool */
 	uint16_t def_vmdq_idx;        /**< Default pool num used for PF */
 	uint16_t def_pool_q_idx;      /**< Default pool queue start reg index */
 };
diff --git a/lib/librte_pmd_e1000/igb_pf.c b/lib/librte_pmd_e1000/igb_pf.c
index bc3816a..9d2f858 100644
--- a/lib/librte_pmd_e1000/igb_pf.c
+++ b/lib/librte_pmd_e1000/igb_pf.c
@@ -115,7 +115,8 @@ void igb_pf_host_init(struct rte_eth_dev *eth_dev)
 		rte_panic("Cannot allocate memory for private VF data\n");
 
 	RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_8_POOLS;
-	RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue;
+	RTE_ETH_DEV_SRIOV(eth_dev).nb_rx_q_per_pool = nb_queue;
+	RTE_ETH_DEV_SRIOV(eth_dev).nb_tx_q_per_pool = nb_queue;
 	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
 	RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
 
diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index d6d408e..02b9cda 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -3564,7 +3564,7 @@ static int ixgbe_set_vf_rate_limit(struct rte_eth_dev *dev, uint16_t vf,
 	struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct ixgbe_vf_info *vfinfo =
 		*(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
-	uint8_t  nb_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
+	uint8_t  nb_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool;
 	uint32_t queue_stride =
 		IXGBE_MAX_RX_QUEUE_NUM / RTE_ETH_DEV_SRIOV(dev).active;
 	uint32_t queue_idx = vf * queue_stride, idx = 0, vf_idx;
diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c b/lib/librte_pmd_ixgbe/ixgbe_pf.c
index dbda9b5..4103e97 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
@@ -129,7 +129,8 @@ void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
 		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS;
 	}
 
-	RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue;
+	RTE_ETH_DEV_SRIOV(eth_dev).nb_rx_q_per_pool = nb_queue;
+	RTE_ETH_DEV_SRIOV(eth_dev).nb_tx_q_per_pool = nb_queue;
 	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
 	RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
 
@@ -497,7 +498,7 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
 {
 	struct ixgbe_vf_info *vfinfo =
 		*IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
-	uint32_t default_q = vf * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
+	uint32_t default_q = vf * RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool;
 
 	/* Verify if the PF supports the mbox APIs version or not */
 	switch (vfinfo[vf].api_version) {
@@ -509,8 +510,8 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
 	}
 
 	/* Notify VF of Rx and Tx queue number */
-	msgbuf[IXGBE_VF_RX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
-	msgbuf[IXGBE_VF_TX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
+	msgbuf[IXGBE_VF_RX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool;
+	msgbuf[IXGBE_VF_TX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool;
 
 	/* Notify VF of default queue */
 	msgbuf[IXGBE_VF_DEF_QUEUE] = default_q;
-- 
1.9.1

Re: [dpdk-dev] [PATCH v4 3/7] pmd: igb/ixgbe split nb_q_per_pool to rx and tx nb_q_per_pool

[Ouyang, Changchun]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pawel Wodkowski
> Sent: Thursday, February 19, 2015 11:55 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v4 3/7] pmd: igb/ixgbe split nb_q_per_pool to rx
> and tx nb_q_per_pool
> 
> rx and tx number of queue might be different if RX and TX are configured in
> different mode. This allow to inform VF about proper number of queues.
> 
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> ---
>  lib/librte_ether/rte_ethdev.c       | 12 ++++++------
>  lib/librte_ether/rte_ethdev.h       |  3 ++-
>  lib/librte_pmd_e1000/igb_pf.c       |  3 ++-
>  lib/librte_pmd_ixgbe/ixgbe_ethdev.c |  2 +-
>  lib/librte_pmd_ixgbe/ixgbe_pf.c     |  9 +++++----
>  5 files changed, 16 insertions(+), 13 deletions(-)
> 
> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
> index 2e814db..4007054 100644
> --- a/lib/librte_ether/rte_ethdev.c
> +++ b/lib/librte_ether/rte_ethdev.c
> @@ -520,7 +520,7 @@ rte_eth_dev_check_vf_rss_rxq_num(uint8_t port_id,
> uint16_t nb_rx_q)
>  		return -EINVAL;
>  	}
> 
> -	RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = nb_rx_q;
> +	RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool = nb_rx_q;
>  	RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx =
>  		dev->pci_dev->max_vfs * nb_rx_q;
> 
> @@ -567,7 +567,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id,
> uint16_t nb_rx_q, uint16_t nb_tx_q,
>  					dev->data-
> >dev_conf.rxmode.mq_mode);
>  		case ETH_MQ_RX_VMDQ_RSS:
>  			dev->data->dev_conf.rxmode.mq_mode =
> ETH_MQ_RX_VMDQ_RSS;
> -			if (nb_rx_q <=
> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool)
> +			if (nb_rx_q <=
> RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool)
>  				if
> (rte_eth_dev_check_vf_rss_rxq_num(port_id, nb_rx_q) != 0) {
>  					PMD_DEBUG_TRACE("ethdev
> port_id=%d"
>  						" SRIOV active, invalid queue"
> @@ -580,8 +580,8 @@ rte_eth_dev_check_mq_mode(uint8_t port_id,
> uint16_t nb_rx_q, uint16_t nb_tx_q,
>  		default: /* ETH_MQ_RX_VMDQ_ONLY or
> ETH_MQ_RX_NONE */
>  			/* if nothing mq mode configure, use default scheme
> */
>  			dev->data->dev_conf.rxmode.mq_mode =
> ETH_MQ_RX_VMDQ_ONLY;
> -			if (RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool > 1)
> -				RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool =
> 1;
> +			if (RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool > 1)
> +
> 	RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool = 1;
>  			break;
>  		}
> 
> @@ -600,8 +600,8 @@ rte_eth_dev_check_mq_mode(uint8_t port_id,
> uint16_t nb_rx_q, uint16_t nb_tx_q,
>  		}
> 
>  		/* check valid queue number */
> -		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool) ||
> -		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool)) {
> +		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool)

Here,  how about use nb_rx_q_per_pool to replace nb_tx_q_per_pool ?
so it will be more clear to check rx queue number.

> ||
> +		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool))
> {
>  			PMD_DEBUG_TRACE("ethdev port_id=%d SRIOV
> active, "
>  				    "queue number must less equal to %d\n",
>  					port_id,
> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool);

Re: [dpdk-dev] [PATCH v4 3/7] pmd: igb/ixgbe split nb_q_per_pool to rx and tx nb_q_per_pool

[Pawel Wodkowski]

On 2015-02-25 04:24, Ouyang, Changchun wrote:
>
>
>> -----Original Message-----
>> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pawel Wodkowski
>> Sent: Thursday, February 19, 2015 11:55 PM
>> To: dev@dpdk.org
>> Subject: [dpdk-dev] [PATCH v4 3/7] pmd: igb/ixgbe split nb_q_per_pool to rx
>> and tx nb_q_per_pool
>>
[...]
>>
>>   		/* check valid queue number */
>> -		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool) ||
>> -		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool)) {
>> +		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool)
>
> Here,  how about use nb_rx_q_per_pool to replace nb_tx_q_per_pool ?
> so it will be more clear to check rx queue number.

Yes, this should be nb_rx_q_per_pool. I missed this, because in next 
patch I moved this and corrected "on the fly" :). I will correct this in 
next version.


-- 
Pawel

[dpdk-dev] [PATCH v4 4/7] move rte_eth_dev_check_mq_mode() logic to driver

[Pawel Wodkowski]

Function rte_eth_dev_check_mq_mode() is driver specific. It should be
done in PF configuration phase. This patch move igb/ixgbe driver
specific mq check and SRIOV configuration code to driver part. Also
rewriting log messages to be shorter and more descriptive.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 lib/librte_ether/rte_ethdev.c       | 197 -----------------------------------
 lib/librte_pmd_e1000/igb_ethdev.c   |  43 ++++++++
 lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 105 ++++++++++++++++++-
 lib/librte_pmd_ixgbe/ixgbe_ethdev.h |   5 +-
 lib/librte_pmd_ixgbe/ixgbe_pf.c     | 202 +++++++++++++++++++++++++++++++-----
 5 files changed, 327 insertions(+), 225 deletions(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 4007054..aa27e39 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -502,195 +502,6 @@ rte_eth_dev_tx_queue_config(struct rte_eth_dev *dev, uint16_t nb_queues)
 	return (0);
 }
 
-static int
-rte_eth_dev_check_vf_rss_rxq_num(uint8_t port_id, uint16_t nb_rx_q)
-{
-	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
-	switch (nb_rx_q) {
-	case 1:
-	case 2:
-		RTE_ETH_DEV_SRIOV(dev).active =
-			ETH_64_POOLS;
-		break;
-	case 4:
-		RTE_ETH_DEV_SRIOV(dev).active =
-			ETH_32_POOLS;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool = nb_rx_q;
-	RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx =
-		dev->pci_dev->max_vfs * nb_rx_q;
-
-	return 0;
-}
-
-static int
-rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
-		      const struct rte_eth_conf *dev_conf)
-{
-	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
-
-	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
-		/* check multi-queue mode */
-		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
-		    (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB_RSS) ||
-		    (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
-			/* SRIOV only works in VMDq enable mode */
-			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
-					" SRIOV active, "
-					"wrong VMDQ mq_mode rx %u tx %u\n",
-					port_id,
-					dev_conf->rxmode.mq_mode,
-					dev_conf->txmode.mq_mode);
-			return (-EINVAL);
-		}
-
-		switch (dev_conf->rxmode.mq_mode) {
-		case ETH_MQ_RX_VMDQ_DCB:
-		case ETH_MQ_RX_VMDQ_DCB_RSS:
-			/* DCB/RSS VMDQ in SRIOV mode, not implement yet */
-			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
-					" SRIOV active, "
-					"unsupported VMDQ mq_mode rx %u\n",
-					port_id, dev_conf->rxmode.mq_mode);
-			return (-EINVAL);
-		case ETH_MQ_RX_RSS:
-			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
-					" SRIOV active, "
-					"Rx mq mode is changed from:"
-					"mq_mode %u into VMDQ mq_mode %u\n",
-					port_id,
-					dev_conf->rxmode.mq_mode,
-					dev->data->dev_conf.rxmode.mq_mode);
-		case ETH_MQ_RX_VMDQ_RSS:
-			dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_RSS;
-			if (nb_rx_q <= RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool)
-				if (rte_eth_dev_check_vf_rss_rxq_num(port_id, nb_rx_q) != 0) {
-					PMD_DEBUG_TRACE("ethdev port_id=%d"
-						" SRIOV active, invalid queue"
-						" number for VMDQ RSS, allowed"
-						" value are 1, 2 or 4\n",
-						port_id);
-					return -EINVAL;
-				}
-			break;
-		default: /* ETH_MQ_RX_VMDQ_ONLY or ETH_MQ_RX_NONE */
-			/* if nothing mq mode configure, use default scheme */
-			dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_ONLY;
-			if (RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool > 1)
-				RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool = 1;
-			break;
-		}
-
-		switch (dev_conf->txmode.mq_mode) {
-		case ETH_MQ_TX_VMDQ_DCB:
-			/* DCB VMDQ in SRIOV mode, not implement yet */
-			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
-					" SRIOV active, "
-					"unsupported VMDQ mq_mode tx %u\n",
-					port_id, dev_conf->txmode.mq_mode);
-			return (-EINVAL);
-		default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
-			/* if nothing mq mode configure, use default scheme */
-			dev->data->dev_conf.txmode.mq_mode = ETH_MQ_TX_VMDQ_ONLY;
-			break;
-		}
-
-		/* check valid queue number */
-		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool) ||
-		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool)) {
-			PMD_DEBUG_TRACE("ethdev port_id=%d SRIOV active, "
-				    "queue number must less equal to %d\n",
-					port_id, RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool);
-			return (-EINVAL);
-		}
-	} else {
-		/* For vmdb+dcb mode check our configuration before we go further */
-		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) {
-			const struct rte_eth_vmdq_dcb_conf *conf;
-
-			if (nb_rx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
-				PMD_DEBUG_TRACE("ethdev port_id=%d VMDQ+DCB, nb_rx_q "
-						"!= %d\n",
-						port_id, ETH_VMDQ_DCB_NUM_QUEUES);
-				return (-EINVAL);
-			}
-			conf = &(dev_conf->rx_adv_conf.vmdq_dcb_conf);
-			if (! (conf->nb_queue_pools == ETH_16_POOLS ||
-			       conf->nb_queue_pools == ETH_32_POOLS)) {
-				PMD_DEBUG_TRACE("ethdev port_id=%d VMDQ+DCB selected, "
-						"nb_queue_pools must be %d or %d\n",
-						port_id, ETH_16_POOLS, ETH_32_POOLS);
-				return (-EINVAL);
-			}
-		}
-		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB) {
-			const struct rte_eth_vmdq_dcb_tx_conf *conf;
-
-			if (nb_tx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
-				PMD_DEBUG_TRACE("ethdev port_id=%d VMDQ+DCB, nb_tx_q "
-						"!= %d\n",
-						port_id, ETH_VMDQ_DCB_NUM_QUEUES);
-				return (-EINVAL);
-			}
-			conf = &(dev_conf->tx_adv_conf.vmdq_dcb_tx_conf);
-			if (! (conf->nb_queue_pools == ETH_16_POOLS ||
-			       conf->nb_queue_pools == ETH_32_POOLS)) {
-				PMD_DEBUG_TRACE("ethdev port_id=%d VMDQ+DCB selected, "
-						"nb_queue_pools != %d or nb_queue_pools "
-						"!= %d\n",
-						port_id, ETH_16_POOLS, ETH_32_POOLS);
-				return (-EINVAL);
-			}
-		}
-
-		/* For DCB mode check our configuration before we go further */
-		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
-			const struct rte_eth_dcb_rx_conf *conf;
-
-			if (nb_rx_q != ETH_DCB_NUM_QUEUES) {
-				PMD_DEBUG_TRACE("ethdev port_id=%d DCB, nb_rx_q "
-						"!= %d\n",
-						port_id, ETH_DCB_NUM_QUEUES);
-				return (-EINVAL);
-			}
-			conf = &(dev_conf->rx_adv_conf.dcb_rx_conf);
-			if (! (conf->nb_tcs == ETH_4_TCS ||
-			       conf->nb_tcs == ETH_8_TCS)) {
-				PMD_DEBUG_TRACE("ethdev port_id=%d DCB selected, "
-						"nb_tcs != %d or nb_tcs "
-						"!= %d\n",
-						port_id, ETH_4_TCS, ETH_8_TCS);
-				return (-EINVAL);
-			}
-		}
-
-		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
-			const struct rte_eth_dcb_tx_conf *conf;
-
-			if (nb_tx_q != ETH_DCB_NUM_QUEUES) {
-				PMD_DEBUG_TRACE("ethdev port_id=%d DCB, nb_tx_q "
-						"!= %d\n",
-						port_id, ETH_DCB_NUM_QUEUES);
-				return (-EINVAL);
-			}
-			conf = &(dev_conf->tx_adv_conf.dcb_tx_conf);
-			if (! (conf->nb_tcs == ETH_4_TCS ||
-			       conf->nb_tcs == ETH_8_TCS)) {
-				PMD_DEBUG_TRACE("ethdev port_id=%d DCB selected, "
-						"nb_tcs != %d or nb_tcs "
-						"!= %d\n",
-						port_id, ETH_4_TCS, ETH_8_TCS);
-				return (-EINVAL);
-			}
-		}
-	}
-	return 0;
-}
-
 int
 rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 		      const struct rte_eth_conf *dev_conf)
@@ -798,14 +609,6 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 							ETHER_MAX_LEN;
 	}
 
-	/* multipe queue mode checking */
-	diag = rte_eth_dev_check_mq_mode(port_id, nb_rx_q, nb_tx_q, dev_conf);
-	if (diag != 0) {
-		PMD_DEBUG_TRACE("port%d rte_eth_dev_check_mq_mode = %d\n",
-				port_id, diag);
-		return diag;
-	}
-
 	/*
 	 * Setup new number of RX/TX queues and reconfigure device.
 	 */
diff --git a/lib/librte_pmd_e1000/igb_ethdev.c b/lib/librte_pmd_e1000/igb_ethdev.c
index d451086..5c922df 100644
--- a/lib/librte_pmd_e1000/igb_ethdev.c
+++ b/lib/librte_pmd_e1000/igb_ethdev.c
@@ -742,6 +742,49 @@ eth_igb_configure(struct rte_eth_dev *dev)
 	struct e1000_interrupt *intr =
 		E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
 
+	enum rte_eth_rx_mq_mode rx_mq_mode = dev->data->dev_conf.rxmode.mq_mode;
+	enum rte_eth_tx_mq_mode tx_mq_mode = dev->data->dev_conf.txmode.mq_mode;
+
+	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
+		/* Check multi-queue mode.
+		 * To no break software we accept ETH_MQ_RX_NONE as this might be used
+		 * to turn off VLAN filter.
+		 *
+		 * FIXME if support RSS together with VMDq & SRIOV
+		 */
+		if (rx_mq_mode != ETH_MQ_RX_NONE &&
+				(rx_mq_mode & ETH_MQ_RX_VMDQ_ONLY) == 0) {
+			PMD_INIT_LOG(WARNING, " SRIOV active, RX mode %d is not supported."
+					"Driver will behave as in %d mode as fallback.",
+					rx_mq_mode, ETH_MQ_RX_NONE);
+		}
+
+		/* TX mode is not used in in this driver so mode might be ignored.*/
+		if (tx_mq_mode != ETH_MQ_TX_VMDQ_ONLY) {
+			/* SRIOV only works in VMDq enable mode */
+			PMD_INIT_LOG(WARNING, "TX mode %d is not supported in SRIOV. "
+					"Driver will behave as in %d mode as fallback.",
+					tx_mq_mode, ETH_MQ_TX_VMDQ_ONLY);
+		}
+	} else {
+		/*
+		 * To no break software that set invalid mode, only display warning if
+		 * invalid mode is used.
+		 */
+		if ((rx_mq_mode & (ETH_MQ_RX_RSS_FLAG | ETH_MQ_RX_VMDQ_FLAG))
+				!= rx_mq_mode) {
+			PMD_INIT_LOG(WARNING, "RX mode %d is not supported. Driver will "
+					"behave as in %d mode as fallback.", rx_mq_mode,
+					rx_mq_mode & (ETH_MQ_RX_RSS_FLAG | ETH_MQ_RX_VMDQ_FLAG));
+		}
+
+		if (tx_mq_mode != ETH_MQ_TX_NONE) {
+			PMD_INIT_LOG(WARNING, "TX mode %d is not supported."
+					"Driver will behave as in %d mode as fallback.",
+					tx_mq_mode, ETH_MQ_TX_NONE);
+		}
+	}
+
 	PMD_INIT_FUNC_TRACE();
 	intr->flags |= E1000_FLAG_NEED_LINK_UPDATE;
 	PMD_INIT_FUNC_TRACE();
diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index 02b9cda..8e9da3b 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -863,7 +863,8 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
 			"Failed to allocate %u bytes needed to store "
 			"MAC addresses",
 			ETHER_ADDR_LEN * hw->mac.num_rar_entries);
-		return -ENOMEM;
+		diag = -ENOMEM;
+		goto error;
 	}
 	/* Copy the permanent MAC address */
 	ether_addr_copy((struct ether_addr *) hw->mac.perm_addr,
@@ -876,7 +877,8 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
 		PMD_INIT_LOG(ERR,
 			"Failed to allocate %d bytes needed to store MAC addresses",
 			ETHER_ADDR_LEN * IXGBE_VMDQ_NUM_UC_MAC);
-		return -ENOMEM;
+		diag = -ENOMEM;
+		goto error;
 	}
 
 	/* initialize the vfta */
@@ -886,7 +888,13 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
 	memset(hwstrip, 0, sizeof(*hwstrip));
 
 	/* initialize PF if max_vfs not zero */
-	ixgbe_pf_host_init(eth_dev);
+	diag = ixgbe_pf_host_init(eth_dev);
+	if (diag < 0) {
+		PMD_INIT_LOG(ERR,
+			"Failed to allocate %d bytes needed to store MAC addresses",
+			ETHER_ADDR_LEN * IXGBE_VMDQ_NUM_UC_MAC);
+		goto error;
+	}
 
 	ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
 	/* let hardware know driver is loaded */
@@ -918,6 +926,11 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
 	ixgbe_enable_intr(eth_dev);
 
 	return 0;
+
+error:
+	rte_free(eth_dev->data->hash_mac_addrs);
+	rte_free(eth_dev->data->mac_addrs);
+	return diag;
 }
 
 
@@ -1434,7 +1447,93 @@ ixgbe_dev_configure(struct rte_eth_dev *dev)
 	struct ixgbe_interrupt *intr =
 		IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
 
+	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
+	struct rte_eth_dev_info dev_info;
+	int retval;
+
 	PMD_INIT_FUNC_TRACE();
+	retval = ixgbe_pf_configure_mq_sriov(dev);
+	if (retval <= 0)
+		return retval;
+
+	uint16_t nb_rx_q = dev->data->nb_rx_queues;
+	uint16_t nb_tx_q = dev->data->nb_rx_queues;
+
+	/* For DCB we need to obtain maximum number of queues dinamically,
+	 * as this depends on max VF exported in PF. */
+	if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
+		(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
+		/* Use dev_infos_get field as this might be pointer to PF or VF. */
+		(*dev->dev_ops->dev_infos_get)(dev, &dev_info);
+	}
+
+	/* For vmdq+dcb mode check our configuration before we go further */
+	if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) {
+		const struct rte_eth_vmdq_dcb_conf *conf;
+
+		if (nb_rx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
+			PMD_INIT_LOG(ERR, " VMDQ+DCB, nb_rx_q != %d\n",
+					ETH_VMDQ_DCB_NUM_QUEUES);
+			return (-EINVAL);
+		}
+		conf = &(dev_conf->rx_adv_conf.vmdq_dcb_conf);
+		if (conf->nb_queue_pools != ETH_16_POOLS &&
+				conf->nb_queue_pools != ETH_32_POOLS) {
+			PMD_INIT_LOG(ERR, " VMDQ+DCB selected, "
+					"number of RX queue pools must be %d or %d\n",
+					ETH_16_POOLS, ETH_32_POOLS);
+			return (-EINVAL);
+		}
+	} else if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
+		/* For DCB mode check out configuration before we go further */
+		const struct rte_eth_dcb_rx_conf *conf;
+
+		if (nb_rx_q != dev_info.max_rx_queues) {
+			PMD_INIT_LOG(ERR, " DCB, number of RX queues != %d\n",
+					ETH_DCB_NUM_QUEUES);
+			return (-EINVAL);
+		}
+		conf = &(dev_conf->rx_adv_conf.dcb_rx_conf);
+		if (conf->nb_tcs != ETH_4_TCS &&
+			   conf->nb_tcs != ETH_8_TCS) {
+			PMD_INIT_LOG(ERR, " DCB, number of RX TC must be %d or %d\n",
+					ETH_4_TCS, ETH_8_TCS);
+			return (-EINVAL);
+		}
+	}
+
+	if (dev_conf->txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB) {
+		const struct rte_eth_vmdq_dcb_tx_conf *conf;
+
+		if (nb_tx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
+			PMD_INIT_LOG(ERR, " VMDQ+DCB, number of TX queues != %d\n",
+					ETH_VMDQ_DCB_NUM_QUEUES);
+			return (-EINVAL);
+		}
+		conf = &(dev_conf->tx_adv_conf.vmdq_dcb_tx_conf);
+		if (conf->nb_queue_pools != ETH_16_POOLS &&
+			   conf->nb_queue_pools != ETH_32_POOLS) {
+			PMD_INIT_LOG(ERR, " VMDQ+DCB selected, "
+					"number of TX qqueue pools must be %d or %d\n",
+					ETH_16_POOLS, ETH_32_POOLS);
+			return (-EINVAL);
+		}
+	} else if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
+		const struct rte_eth_dcb_tx_conf *conf;
+
+		if (nb_tx_q != dev_info.max_tx_queues) {
+			PMD_INIT_LOG(ERR, " DCB, number of queues must be %d\n",
+					ETH_DCB_NUM_QUEUES);
+			return (-EINVAL);
+		}
+		conf = &(dev_conf->tx_adv_conf.dcb_tx_conf);
+		if (conf->nb_tcs != ETH_4_TCS &&
+			   conf->nb_tcs != ETH_8_TCS) {
+			PMD_INIT_LOG(ERR, " DCB, number of TX TC must be %d or %d\n",
+					ETH_4_TCS, ETH_8_TCS);
+			return (-EINVAL);
+		}
+	}
 
 	/* set flag to update link status after init */
 	intr->flags |= IXGBE_FLAG_NEED_LINK_UPDATE;
diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
index 1383194..e70a6e8 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
@@ -348,11 +348,14 @@ void ixgbe_vlan_hw_strip_enable_all(struct rte_eth_dev *dev);
 
 void ixgbe_vlan_hw_strip_disable_all(struct rte_eth_dev *dev);
 
-void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev);
+int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev);
 
 void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev);
 
+int ixgbe_pf_configure_mq_sriov(struct rte_eth_dev *dev);
+
 int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev);
 
 uint32_t ixgbe_convert_vm_rx_mask_to_val(uint16_t rx_mask, uint32_t orig_val);
+
 #endif /* _IXGBE_ETHDEV_H_ */
diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c b/lib/librte_pmd_ixgbe/ixgbe_pf.c
index 4103e97..a7b9333 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
@@ -91,7 +91,7 @@ ixgbe_mb_intr_setup(struct rte_eth_dev *dev)
 	return 0;
 }
 
-void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
+int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
 {
 	struct ixgbe_vf_info **vfinfo =
 		IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
@@ -101,39 +101,31 @@ void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
         IXGBE_DEV_PRIVATE_TO_UTA(eth_dev->data->dev_private);
 	struct ixgbe_hw *hw =
 		IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+	int retval;
 	uint16_t vf_num;
-	uint8_t nb_queue;
 
 	PMD_INIT_FUNC_TRACE();
 
-	RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
-	if (0 == (vf_num = dev_num_vf(eth_dev)))
-		return;
+	/* Fill sriov structure using default configuration. */
+	retval = ixgbe_pf_configure_mq_sriov(eth_dev);
+	if (retval != 0) {
+		if (retval < 0)
+			PMD_INIT_LOG(ERR, " Setting up SRIOV with default device "
+					"configuration should not fail. This is a BUG.");
+		return 0;
+	}
 
+	vf_num = dev_num_vf(eth_dev);
 	*vfinfo = rte_zmalloc("vf_info", sizeof(struct ixgbe_vf_info) * vf_num, 0);
-	if (*vfinfo == NULL)
-		rte_panic("Cannot allocate memory for private VF data\n");
+	if (*vfinfo == NULL) {
+		PMD_INIT_LOG(ERR, "Cannot allocate memory for private VF data.");
+		return (-ENOMEM);
+	}
 
 	memset(mirror_info,0,sizeof(struct ixgbe_mirror_info));
 	memset(uta_info,0,sizeof(struct ixgbe_uta_info));
 	hw->mac.mc_filter_type = 0;
 
-	if (vf_num >= ETH_32_POOLS) {
-		nb_queue = 2;
-		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_64_POOLS;
-	} else if (vf_num >= ETH_16_POOLS) {
-		nb_queue = 4;
-		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_32_POOLS;
-	} else {
-		nb_queue = 8;
-		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS;
-	}
-
-	RTE_ETH_DEV_SRIOV(eth_dev).nb_rx_q_per_pool = nb_queue;
-	RTE_ETH_DEV_SRIOV(eth_dev).nb_tx_q_per_pool = nb_queue;
-	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
-	RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
-
 	ixgbe_vf_perm_addr_gen(eth_dev, vf_num);
 
 	/* init_mailbox_params */
@@ -142,7 +134,169 @@ void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
 	/* set mb interrupt mask */
 	ixgbe_mb_intr_setup(eth_dev);
 
-	return;
+	return 0;
+}
+
+
+/*
+ * Function that make SRIOV configuration, based on device configuration,
+ * number of requested queues and number of VF created.
+ * Function returns:
+ * 1 - SRIOV is not enabled (no VF created)
+ * 0 - proper SRIOV configuration found.
+ * -EINVAL - no suitable SRIOV configuration found.
+ */
+int
+ixgbe_pf_configure_mq_sriov(struct rte_eth_dev *dev)
+{
+	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
+	struct rte_eth_dev_sriov *sriov = &RTE_ETH_DEV_SRIOV(dev);
+	uint16_t vf_num;
+
+	vf_num = dev_num_vf(dev);
+	if (vf_num == 0) {
+		memset(sriov, 0, sizeof(*sriov));
+		return 1;
+	}
+
+	/* Check multi-queue mode. */
+	if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
+		(dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB_RSS) ||
+		(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
+		/* SRIOV only works in VMDq enable mode */
+		PMD_INIT_LOG(ERR, " SRIOV active, "
+				"invlaid VMDQ rx mode (%u) or tx (%u) mode.",
+				dev_conf->rxmode.mq_mode, dev_conf->txmode.mq_mode);
+		return (-EINVAL);
+	}
+
+	switch (dev_conf->rxmode.mq_mode) {
+	case ETH_MQ_RX_VMDQ_DCB:
+		if (vf_num <= ETH_16_POOLS)
+			sriov->nb_rx_q_per_pool = 8;
+		else if (vf_num <= ETH_32_POOLS)
+			sriov->nb_rx_q_per_pool = 4;
+		else {
+			PMD_INIT_LOG(ERR,
+				"DCB (SRIOV active) - VF count (%d) must be less or equal 32.",
+				vf_num);
+			return (-EINVAL);
+		}
+
+		if (dev->data->nb_rx_queues < sriov->nb_rx_q_per_pool) {
+			PMD_INIT_LOG(WARNING,
+				"DCB (SRIOV active) rx queues (%d) count is not equal %d.",
+				dev->data->nb_rx_queues,
+				sriov->nb_rx_q_per_pool);
+		}
+		break;
+	case ETH_MQ_RX_RSS:
+		PMD_INIT_LOG(INFO, "RSS (SRIOV active), "
+				"rx mq mode is changed from: mq_mode %u into VMDQ mq_mode %u.",
+				dev_conf->rxmode.mq_mode, dev->data->dev_conf.rxmode.mq_mode);
+		dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_RSS;
+		/* falltrought */
+	case ETH_MQ_RX_VMDQ_RSS:
+		if (vf_num >= ETH_64_POOLS) {
+			/* FIXME: Is vf_num > 64 realy supported by hardware? */
+			PMD_INIT_LOG(ERR, "RSS (SRIOV active), "
+					"VFs num must be less or equal 64.");
+				return (-EINVAL);
+		} else if (vf_num >= ETH_32_POOLS) {
+			if (dev->data->nb_rx_queues != 1 && dev->data->nb_rx_queues != 2) {
+				PMD_INIT_LOG(ERR, "RSS (SRIOV active, VF count >= 32),"
+						"invalid rx queues count %d. It must be 1 or 2.",
+						dev->data->nb_rx_queues);
+				return (-EINVAL);
+			}
+
+			sriov->nb_rx_q_per_pool = dev->data->nb_rx_queues;
+		} else {
+			/* FIXME: is VT(16) + RSS realy supported? */
+			if (dev->data->nb_rx_queues != 4) {
+				PMD_INIT_LOG(ERR, "RSS (SRIOV active, VFs count < 32), "
+						"invalid rx queues count %d. It must be 4.",
+						dev->data->nb_rx_queues);
+				return (-EINVAL);
+			}
+
+			sriov->nb_rx_q_per_pool = 4;
+		}
+		break;
+	default: /* ETH_MQ_RX_VMDQ_ONLY or ETH_MQ_RX_NONE */
+		/* if nothing mq mode configure, use default scheme */
+		if (dev->data->dev_conf.rxmode.mq_mode != ETH_MQ_RX_VMDQ_ONLY) {
+			PMD_INIT_LOG(INFO, "Rx mq mode changed from %u into VMDQ %u.",
+					dev->data->dev_conf.rxmode.mq_mode, ETH_MQ_RX_VMDQ_ONLY);
+
+			dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_ONLY;
+		}
+
+		/* queue 0 of each pool is used. */
+		sriov->nb_rx_q_per_pool = 1;
+		break;
+	}
+
+	switch (dev_conf->txmode.mq_mode) {
+	case ETH_MQ_TX_VMDQ_DCB: /* DCB VMDQ in SRIOV mode*/
+		if (vf_num <= ETH_16_POOLS)
+			sriov->nb_tx_q_per_pool = 8;
+		else if (vf_num <= ETH_32_POOLS)
+			sriov->nb_tx_q_per_pool = 4;
+		else if (vf_num <= ETH_64_POOLS)
+			sriov->nb_tx_q_per_pool = 1;
+		else {
+			PMD_INIT_LOG(ERR, "DCB (SRIOV active), "
+					"VF count (%d) must be less or equal 64.",
+				vf_num);
+			return (-EINVAL);
+		}
+		break;
+	default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
+		/* if nothing mq mode configure, use default scheme */
+		if (dev->data->dev_conf.txmode.mq_mode != ETH_MQ_TX_VMDQ_ONLY) {
+			PMD_INIT_LOG(INFO, "Tx mq mode is changed from %u into VMDQ %u.",
+					dev->data->dev_conf.txmode.mq_mode, ETH_MQ_TX_VMDQ_ONLY);
+
+			dev->data->dev_conf.txmode.mq_mode = ETH_MQ_TX_VMDQ_ONLY;
+		}
+
+		/* queue 0 of each pool is used. */
+		sriov->nb_tx_q_per_pool = 1;
+		break;
+	}
+
+	sriov->def_vmdq_idx = vf_num;
+
+	/*
+	 * Pools starts at 2xN, 4xN or 8xN
+	 */
+	if (vf_num >= ETH_32_POOLS) {
+		/* This must be vf_num <= ETH_64_POOLS */
+		sriov->active = ETH_64_POOLS;
+		sriov->def_pool_q_idx = vf_num * 2;
+	} else if (vf_num >= ETH_16_POOLS) {
+		sriov->active = ETH_32_POOLS;
+		sriov->def_pool_q_idx = vf_num * 4;
+	} else {
+		sriov->active = ETH_16_POOLS;
+		sriov->def_pool_q_idx = vf_num * 8;
+	}
+
+	/* Check if available queus count is not less than allocated.*/
+	if (dev->data->nb_rx_queues > sriov->nb_rx_q_per_pool) {
+		PMD_INIT_LOG(ERR, "SRIOV active, rx queue count must less or equal %d.",
+						sriov->nb_rx_q_per_pool);
+				return (-EINVAL);
+	}
+
+	if (dev->data->nb_rx_queues > sriov->nb_tx_q_per_pool) {
+		PMD_INIT_LOG(ERR, "SRIOV active, tx queue count must less or equal %d.",
+				sriov->nb_tx_q_per_pool);
+		return (-EINVAL);
+	}
+
+	return 0;
 }
 
 int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
-- 
1.9.1

Re: [dpdk-dev] [PATCH v4 4/7] move rte_eth_dev_check_mq_mode() logic to driver

[Ouyang, Changchun]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pawel Wodkowski
> Sent: Thursday, February 19, 2015 11:55 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v4 4/7] move rte_eth_dev_check_mq_mode()
> logic to driver
> 
> Function rte_eth_dev_check_mq_mode() is driver specific. It should be
> done in PF configuration phase. This patch move igb/ixgbe driver specific mq
> check and SRIOV configuration code to driver part. Also rewriting log
> messages to be shorter and more descriptive.
> 
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> ---
>  lib/librte_ether/rte_ethdev.c       | 197 -----------------------------------
>  lib/librte_pmd_e1000/igb_ethdev.c   |  43 ++++++++
>  lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 105 ++++++++++++++++++-
>  lib/librte_pmd_ixgbe/ixgbe_ethdev.h |   5 +-
>  lib/librte_pmd_ixgbe/ixgbe_pf.c     | 202
> +++++++++++++++++++++++++++++++-----
>  5 files changed, 327 insertions(+), 225 deletions(-)
> 
> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
> index 4007054..aa27e39 100644
> --- a/lib/librte_ether/rte_ethdev.c
> +++ b/lib/librte_ether/rte_ethdev.c
> @@ -502,195 +502,6 @@ rte_eth_dev_tx_queue_config(struct rte_eth_dev
> *dev, uint16_t nb_queues)
>  	return (0);
>  }
> 
> -static int
> -rte_eth_dev_check_vf_rss_rxq_num(uint8_t port_id, uint16_t nb_rx_q) -{
> -	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
> -	switch (nb_rx_q) {
> -	case 1:
> -	case 2:
> -		RTE_ETH_DEV_SRIOV(dev).active =
> -			ETH_64_POOLS;
> -		break;
> -	case 4:
> -		RTE_ETH_DEV_SRIOV(dev).active =
> -			ETH_32_POOLS;
> -		break;
> -	default:
> -		return -EINVAL;
> -	}
> -
> -	RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool = nb_rx_q;
> -	RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx =
> -		dev->pci_dev->max_vfs * nb_rx_q;
> -
> -	return 0;
> -}
> -
> -static int
> -rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t
> nb_tx_q,
> -		      const struct rte_eth_conf *dev_conf)
> -{
> -	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
> -
> -	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
> -		/* check multi-queue mode */
> -		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
> -		    (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB_RSS)
> ||
> -		    (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
> -			/* SRIOV only works in VMDq enable mode */
> -			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
> -					" SRIOV active, "
> -					"wrong VMDQ mq_mode rx %u
> tx %u\n",
> -					port_id,
> -					dev_conf->rxmode.mq_mode,
> -					dev_conf->txmode.mq_mode);
> -			return (-EINVAL);
> -		}
> -
> -		switch (dev_conf->rxmode.mq_mode) {
> -		case ETH_MQ_RX_VMDQ_DCB:
> -		case ETH_MQ_RX_VMDQ_DCB_RSS:
> -			/* DCB/RSS VMDQ in SRIOV mode, not implement
> yet */
> -			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
> -					" SRIOV active, "
> -					"unsupported VMDQ mq_mode
> rx %u\n",
> -					port_id, dev_conf-
> >rxmode.mq_mode);
> -			return (-EINVAL);
> -		case ETH_MQ_RX_RSS:
> -			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
> -					" SRIOV active, "
> -					"Rx mq mode is changed from:"
> -					"mq_mode %u into VMDQ
> mq_mode %u\n",
> -					port_id,
> -					dev_conf->rxmode.mq_mode,
> -					dev->data-
> >dev_conf.rxmode.mq_mode);
> -		case ETH_MQ_RX_VMDQ_RSS:
> -			dev->data->dev_conf.rxmode.mq_mode =
> ETH_MQ_RX_VMDQ_RSS;
> -			if (nb_rx_q <=
> RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool)
> -				if
> (rte_eth_dev_check_vf_rss_rxq_num(port_id, nb_rx_q) != 0) {
> -					PMD_DEBUG_TRACE("ethdev
> port_id=%d"
> -						" SRIOV active, invalid queue"
> -						" number for VMDQ RSS,
> allowed"
> -						" value are 1, 2 or 4\n",
> -						port_id);
> -					return -EINVAL;
> -				}
> -			break;
> -		default: /* ETH_MQ_RX_VMDQ_ONLY or
> ETH_MQ_RX_NONE */
> -			/* if nothing mq mode configure, use default scheme
> */
> -			dev->data->dev_conf.rxmode.mq_mode =
> ETH_MQ_RX_VMDQ_ONLY;
> -			if (RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool > 1)
> -
> 	RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool = 1;
> -			break;
> -		}
> -
> -		switch (dev_conf->txmode.mq_mode) {
> -		case ETH_MQ_TX_VMDQ_DCB:
> -			/* DCB VMDQ in SRIOV mode, not implement yet */
> -			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
> -					" SRIOV active, "
> -					"unsupported VMDQ mq_mode
> tx %u\n",
> -					port_id, dev_conf-
> >txmode.mq_mode);
> -			return (-EINVAL);
> -		default: /* ETH_MQ_TX_VMDQ_ONLY or
> ETH_MQ_TX_NONE */
> -			/* if nothing mq mode configure, use default scheme
> */
> -			dev->data->dev_conf.txmode.mq_mode =
> ETH_MQ_TX_VMDQ_ONLY;
> -			break;
> -		}
> -
> -		/* check valid queue number */
> -		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool)
> ||
> -		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool))
> {
> -			PMD_DEBUG_TRACE("ethdev port_id=%d SRIOV
> active, "
> -				    "queue number must less equal to %d\n",
> -					port_id,
> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool);
> -			return (-EINVAL);
> -		}
> -	} else {
> -		/* For vmdb+dcb mode check our configuration before we
> go further */
> -		if (dev_conf->rxmode.mq_mode ==
> ETH_MQ_RX_VMDQ_DCB) {
> -			const struct rte_eth_vmdq_dcb_conf *conf;
> -
> -			if (nb_rx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
> -				PMD_DEBUG_TRACE("ethdev port_id=%d
> VMDQ+DCB, nb_rx_q "
> -						"!= %d\n",
> -						port_id,
> ETH_VMDQ_DCB_NUM_QUEUES);
> -				return (-EINVAL);
> -			}
> -			conf = &(dev_conf->rx_adv_conf.vmdq_dcb_conf);
> -			if (! (conf->nb_queue_pools == ETH_16_POOLS ||
> -			       conf->nb_queue_pools == ETH_32_POOLS)) {
> -				PMD_DEBUG_TRACE("ethdev port_id=%d
> VMDQ+DCB selected, "
> -						"nb_queue_pools must
> be %d or %d\n",
> -						port_id, ETH_16_POOLS,
> ETH_32_POOLS);
> -				return (-EINVAL);
> -			}
> -		}
> -		if (dev_conf->txmode.mq_mode ==
> ETH_MQ_TX_VMDQ_DCB) {
> -			const struct rte_eth_vmdq_dcb_tx_conf *conf;
> -
> -			if (nb_tx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
> -				PMD_DEBUG_TRACE("ethdev port_id=%d
> VMDQ+DCB, nb_tx_q "
> -						"!= %d\n",
> -						port_id,
> ETH_VMDQ_DCB_NUM_QUEUES);
> -				return (-EINVAL);
> -			}
> -			conf = &(dev_conf-
> >tx_adv_conf.vmdq_dcb_tx_conf);
> -			if (! (conf->nb_queue_pools == ETH_16_POOLS ||
> -			       conf->nb_queue_pools == ETH_32_POOLS)) {
> -				PMD_DEBUG_TRACE("ethdev port_id=%d
> VMDQ+DCB selected, "
> -						"nb_queue_pools != %d or
> nb_queue_pools "
> -						"!= %d\n",
> -						port_id, ETH_16_POOLS,
> ETH_32_POOLS);
> -				return (-EINVAL);
> -			}
> -		}
> -
> -		/* For DCB mode check our configuration before we go
> further */
> -		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
> -			const struct rte_eth_dcb_rx_conf *conf;
> -
> -			if (nb_rx_q != ETH_DCB_NUM_QUEUES) {
> -				PMD_DEBUG_TRACE("ethdev port_id=%d
> DCB, nb_rx_q "
> -						"!= %d\n",
> -						port_id,
> ETH_DCB_NUM_QUEUES);
> -				return (-EINVAL);
> -			}
> -			conf = &(dev_conf->rx_adv_conf.dcb_rx_conf);
> -			if (! (conf->nb_tcs == ETH_4_TCS ||
> -			       conf->nb_tcs == ETH_8_TCS)) {
> -				PMD_DEBUG_TRACE("ethdev port_id=%d
> DCB selected, "
> -						"nb_tcs != %d or nb_tcs "
> -						"!= %d\n",
> -						port_id, ETH_4_TCS,
> ETH_8_TCS);
> -				return (-EINVAL);
> -			}
> -		}
> -
> -		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
> -			const struct rte_eth_dcb_tx_conf *conf;
> -
> -			if (nb_tx_q != ETH_DCB_NUM_QUEUES) {
> -				PMD_DEBUG_TRACE("ethdev port_id=%d
> DCB, nb_tx_q "
> -						"!= %d\n",
> -						port_id,
> ETH_DCB_NUM_QUEUES);
> -				return (-EINVAL);
> -			}
> -			conf = &(dev_conf->tx_adv_conf.dcb_tx_conf);
> -			if (! (conf->nb_tcs == ETH_4_TCS ||
> -			       conf->nb_tcs == ETH_8_TCS)) {
> -				PMD_DEBUG_TRACE("ethdev port_id=%d
> DCB selected, "
> -						"nb_tcs != %d or nb_tcs "
> -						"!= %d\n",
> -						port_id, ETH_4_TCS,
> ETH_8_TCS);
> -				return (-EINVAL);
> -			}
> -		}
> -	}
> -	return 0;
> -}
> -
>  int
>  rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>  		      const struct rte_eth_conf *dev_conf) @@ -798,14 +609,6
> @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t
> nb_tx_q,
>  							ETHER_MAX_LEN;
>  	}
> 
> -	/* multipe queue mode checking */
> -	diag = rte_eth_dev_check_mq_mode(port_id, nb_rx_q, nb_tx_q,
> dev_conf);
> -	if (diag != 0) {
> -		PMD_DEBUG_TRACE("port%d
> rte_eth_dev_check_mq_mode = %d\n",
> -				port_id, diag);
> -		return diag;
> -	}
> -
>  	/*
>  	 * Setup new number of RX/TX queues and reconfigure device.
>  	 */
> diff --git a/lib/librte_pmd_e1000/igb_ethdev.c
> b/lib/librte_pmd_e1000/igb_ethdev.c
> index d451086..5c922df 100644
> --- a/lib/librte_pmd_e1000/igb_ethdev.c
> +++ b/lib/librte_pmd_e1000/igb_ethdev.c
> @@ -742,6 +742,49 @@ eth_igb_configure(struct rte_eth_dev *dev)
>  	struct e1000_interrupt *intr =
>  		E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
> 
> +	enum rte_eth_rx_mq_mode rx_mq_mode = dev->data-
> >dev_conf.rxmode.mq_mode;
> +	enum rte_eth_tx_mq_mode tx_mq_mode =
> +dev->data->dev_conf.txmode.mq_mode;
> +
> +	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
> +		/* Check multi-queue mode.
> +		 * To no break software we accept ETH_MQ_RX_NONE as
> this might be used
> +		 * to turn off VLAN filter.
> +		 *
> +		 * FIXME if support RSS together with VMDq & SRIOV
> +		 */
> +		if (rx_mq_mode != ETH_MQ_RX_NONE &&
> +				(rx_mq_mode & ETH_MQ_RX_VMDQ_ONLY)
> == 0) {
> +			PMD_INIT_LOG(WARNING, " SRIOV active, RX
> mode %d is not supported."
> +					"Driver will behave as in %d mode as
> fallback.",
> +					rx_mq_mode, ETH_MQ_RX_NONE);
> +		}
> +
> +		/* TX mode is not used in in this driver so mode might be
> ignored.*/
> +		if (tx_mq_mode != ETH_MQ_TX_VMDQ_ONLY) {
> +			/* SRIOV only works in VMDq enable mode */
> +			PMD_INIT_LOG(WARNING, "TX mode %d is not
> supported in SRIOV. "
> +					"Driver will behave as in %d mode as
> fallback.",
> +					tx_mq_mode,
> ETH_MQ_TX_VMDQ_ONLY);
> +		}
> +	} else {
> +		/*
> +		 * To no break software that set invalid mode, only display
> warning if
> +		 * invalid mode is used.
> +		 */
> +		if ((rx_mq_mode & (ETH_MQ_RX_RSS_FLAG |
> ETH_MQ_RX_VMDQ_FLAG))
> +				!= rx_mq_mode) {
> +			PMD_INIT_LOG(WARNING, "RX mode %d is not
> supported. Driver will "
> +					"behave as in %d mode as fallback.",
> rx_mq_mode,
> +					rx_mq_mode &
> (ETH_MQ_RX_RSS_FLAG | ETH_MQ_RX_VMDQ_FLAG));
> +		}
> +
> +		if (tx_mq_mode != ETH_MQ_TX_NONE) {
> +			PMD_INIT_LOG(WARNING, "TX mode %d is not
> supported."
> +					"Driver will behave as in %d mode as
> fallback.",
> +					tx_mq_mode, ETH_MQ_TX_NONE);
> +		}
> +	}
> +

Better to have new function for these new codes.

>  	PMD_INIT_FUNC_TRACE();
>  	intr->flags |= E1000_FLAG_NEED_LINK_UPDATE;
>  	PMD_INIT_FUNC_TRACE();
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> index 02b9cda..8e9da3b 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> @@ -863,7 +863,8 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct
> eth_driver *eth_drv,
>  			"Failed to allocate %u bytes needed to store "
>  			"MAC addresses",
>  			ETHER_ADDR_LEN * hw->mac.num_rar_entries);
> -		return -ENOMEM;
> +		diag = -ENOMEM;
> +		goto error;
>  	}
>  	/* Copy the permanent MAC address */
>  	ether_addr_copy((struct ether_addr *) hw->mac.perm_addr, @@ -
> 876,7 +877,8 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct
> eth_driver *eth_drv,
>  		PMD_INIT_LOG(ERR,
>  			"Failed to allocate %d bytes needed to store MAC
> addresses",
>  			ETHER_ADDR_LEN * IXGBE_VMDQ_NUM_UC_MAC);
> -		return -ENOMEM;
> +		diag = -ENOMEM;
> +		goto error;
>  	}
> 
>  	/* initialize the vfta */
> @@ -886,7 +888,13 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct
> eth_driver *eth_drv,
>  	memset(hwstrip, 0, sizeof(*hwstrip));
> 
>  	/* initialize PF if max_vfs not zero */
> -	ixgbe_pf_host_init(eth_dev);
> +	diag = ixgbe_pf_host_init(eth_dev);
> +	if (diag < 0) {
> +		PMD_INIT_LOG(ERR,
> +			"Failed to allocate %d bytes needed to store MAC
> addresses",
> +			ETHER_ADDR_LEN * IXGBE_VMDQ_NUM_UC_MAC);
> +		goto error;
> +	}
> 
>  	ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
>  	/* let hardware know driver is loaded */ @@ -918,6 +926,11 @@
> eth_ixgbe_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
>  	ixgbe_enable_intr(eth_dev);
> 
>  	return 0;
> +
> +error:
> +	rte_free(eth_dev->data->hash_mac_addrs);
> +	rte_free(eth_dev->data->mac_addrs);
> +	return diag;
>  }
> 
> 
> @@ -1434,7 +1447,93 @@ ixgbe_dev_configure(struct rte_eth_dev *dev)
>  	struct ixgbe_interrupt *intr =
>  		IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
> 
> +	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
> +	struct rte_eth_dev_info dev_info;
> +	int retval;
> +
>  	PMD_INIT_FUNC_TRACE();
> +	retval = ixgbe_pf_configure_mq_sriov(dev);

Do we need a non-sriov version to configure mq mode?
In ixgbe_pf_configure_mq_sriov, in the case of no vf,
It will early return, then no chance to configure and check mq mode and queue number.
Do I miss anything here?  

> +	if (retval <= 0)
> +		return retval;
> +
> +	uint16_t nb_rx_q = dev->data->nb_rx_queues;
> +	uint16_t nb_tx_q = dev->data->nb_rx_queues;

Rx or tx here?

> +
> +	/* For DCB we need to obtain maximum number of queues
> dinamically,
> +	 * as this depends on max VF exported in PF. */
> +	if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
> +		(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
> +		/* Use dev_infos_get field as this might be pointer to PF or
> VF. */
> +		(*dev->dev_ops->dev_infos_get)(dev, &dev_info);
> +	}
> +
> +	/* For vmdq+dcb mode check our configuration before we go further
> */
> +	if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) {
> +		const struct rte_eth_vmdq_dcb_conf *conf;
> +
> +		if (nb_rx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
> +			PMD_INIT_LOG(ERR, " VMDQ+DCB,
> nb_rx_q != %d\n",
> +					ETH_VMDQ_DCB_NUM_QUEUES);
> +			return (-EINVAL);
> +		}
> +		conf = &(dev_conf->rx_adv_conf.vmdq_dcb_conf);
> +		if (conf->nb_queue_pools != ETH_16_POOLS &&
> +				conf->nb_queue_pools != ETH_32_POOLS) {
> +			PMD_INIT_LOG(ERR, " VMDQ+DCB selected, "
> +					"number of RX queue pools must
> be %d or %d\n",
> +					ETH_16_POOLS, ETH_32_POOLS);
> +			return (-EINVAL);
> +		}
> +	} else if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
> +		/* For DCB mode check out configuration before we go
> further */
> +		const struct rte_eth_dcb_rx_conf *conf;
> +
> +		if (nb_rx_q != dev_info.max_rx_queues) {
> +			PMD_INIT_LOG(ERR, " DCB, number of RX
> queues != %d\n",
> +					ETH_DCB_NUM_QUEUES);
> +			return (-EINVAL);
> +		}
> +		conf = &(dev_conf->rx_adv_conf.dcb_rx_conf);
> +		if (conf->nb_tcs != ETH_4_TCS &&
> +			   conf->nb_tcs != ETH_8_TCS) {
> +			PMD_INIT_LOG(ERR, " DCB, number of RX TC must
> be %d or %d\n",
> +					ETH_4_TCS, ETH_8_TCS);
> +			return (-EINVAL);
> +		}
> +	}
> +
> +	if (dev_conf->txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB) {
> +		const struct rte_eth_vmdq_dcb_tx_conf *conf;
> +
> +		if (nb_tx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
> +			PMD_INIT_LOG(ERR, " VMDQ+DCB, number of TX
> queues != %d\n",
> +					ETH_VMDQ_DCB_NUM_QUEUES);
> +			return (-EINVAL);
> +		}
> +		conf = &(dev_conf->tx_adv_conf.vmdq_dcb_tx_conf);
> +		if (conf->nb_queue_pools != ETH_16_POOLS &&
> +			   conf->nb_queue_pools != ETH_32_POOLS) {
> +			PMD_INIT_LOG(ERR, " VMDQ+DCB selected, "
> +					"number of TX qqueue pools must
> be %d or %d\n",
> +					ETH_16_POOLS, ETH_32_POOLS);
> +			return (-EINVAL);
> +		}
> +	} else if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
> +		const struct rte_eth_dcb_tx_conf *conf;
> +
> +		if (nb_tx_q != dev_info.max_tx_queues) {
> +			PMD_INIT_LOG(ERR, " DCB, number of queues must
> be %d\n",
> +					ETH_DCB_NUM_QUEUES);
> +			return (-EINVAL);
> +		}
> +		conf = &(dev_conf->tx_adv_conf.dcb_tx_conf);
> +		if (conf->nb_tcs != ETH_4_TCS &&
> +			   conf->nb_tcs != ETH_8_TCS) {
> +			PMD_INIT_LOG(ERR, " DCB, number of TX TC must
> be %d or %d\n",
> +					ETH_4_TCS, ETH_8_TCS);
> +			return (-EINVAL);
> +		}
> +	}

Better to have a separate function for these new codes.

> 
>  	/* set flag to update link status after init */
>  	intr->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; diff --git
> a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> index 1383194..e70a6e8 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> @@ -348,11 +348,14 @@ void ixgbe_vlan_hw_strip_enable_all(struct
> rte_eth_dev *dev);
> 
>  void ixgbe_vlan_hw_strip_disable_all(struct rte_eth_dev *dev);
> 
> -void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev);
> +int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev);
> 
>  void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev);
> 
> +int ixgbe_pf_configure_mq_sriov(struct rte_eth_dev *dev);
> +
>  int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev);
> 
>  uint32_t ixgbe_convert_vm_rx_mask_to_val(uint16_t rx_mask, uint32_t
> orig_val);
> +
>  #endif /* _IXGBE_ETHDEV_H_ */
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c
> b/lib/librte_pmd_ixgbe/ixgbe_pf.c index 4103e97..a7b9333 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
> @@ -91,7 +91,7 @@ ixgbe_mb_intr_setup(struct rte_eth_dev *dev)
>  	return 0;
>  }
> 
> -void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
> +int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
>  {
>  	struct ixgbe_vf_info **vfinfo =
>  		IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data-
> >dev_private);
> @@ -101,39 +101,31 @@ void ixgbe_pf_host_init(struct rte_eth_dev
> *eth_dev)
>          IXGBE_DEV_PRIVATE_TO_UTA(eth_dev->data->dev_private);
>  	struct ixgbe_hw *hw =
>  		IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
> +	int retval;
>  	uint16_t vf_num;
> -	uint8_t nb_queue;
> 
>  	PMD_INIT_FUNC_TRACE();
> 
> -	RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
> -	if (0 == (vf_num = dev_num_vf(eth_dev)))
> -		return;
> +	/* Fill sriov structure using default configuration. */
> +	retval = ixgbe_pf_configure_mq_sriov(eth_dev);
> +	if (retval != 0) {
> +		if (retval < 0)
> +			PMD_INIT_LOG(ERR, " Setting up SRIOV with default
> device "
> +					"configuration should not fail. This is a
> BUG.");
> +		return 0;
> +	}
> 
> +	vf_num = dev_num_vf(eth_dev);
>  	*vfinfo = rte_zmalloc("vf_info", sizeof(struct ixgbe_vf_info) *
> vf_num, 0);
> -	if (*vfinfo == NULL)
> -		rte_panic("Cannot allocate memory for private VF data\n");
> +	if (*vfinfo == NULL) {
> +		PMD_INIT_LOG(ERR, "Cannot allocate memory for private VF
> data.");
> +		return (-ENOMEM);
> +	}
> 
>  	memset(mirror_info,0,sizeof(struct ixgbe_mirror_info));
>  	memset(uta_info,0,sizeof(struct ixgbe_uta_info));
>  	hw->mac.mc_filter_type = 0;
> 
> -	if (vf_num >= ETH_32_POOLS) {
> -		nb_queue = 2;
> -		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_64_POOLS;
> -	} else if (vf_num >= ETH_16_POOLS) {
> -		nb_queue = 4;
> -		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_32_POOLS;
> -	} else {
> -		nb_queue = 8;
> -		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS;
> -	}
> -
> -	RTE_ETH_DEV_SRIOV(eth_dev).nb_rx_q_per_pool = nb_queue;
> -	RTE_ETH_DEV_SRIOV(eth_dev).nb_tx_q_per_pool = nb_queue;
> -	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
> -	RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx =
> (uint16_t)(vf_num * nb_queue);
> -
>  	ixgbe_vf_perm_addr_gen(eth_dev, vf_num);
> 
>  	/* init_mailbox_params */
> @@ -142,7 +134,169 @@ void ixgbe_pf_host_init(struct rte_eth_dev
> *eth_dev)
>  	/* set mb interrupt mask */
>  	ixgbe_mb_intr_setup(eth_dev);
> 
> -	return;
> +	return 0;
> +}
> +
> +
> +/*
> + * Function that make SRIOV configuration, based on device
> +configuration,
> + * number of requested queues and number of VF created.
> + * Function returns:
> + * 1 - SRIOV is not enabled (no VF created)
> + * 0 - proper SRIOV configuration found.
> + * -EINVAL - no suitable SRIOV configuration found.
> + */
> +int
> +ixgbe_pf_configure_mq_sriov(struct rte_eth_dev *dev) {
> +	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
> +	struct rte_eth_dev_sriov *sriov = &RTE_ETH_DEV_SRIOV(dev);
> +	uint16_t vf_num;
> +
> +	vf_num = dev_num_vf(dev);
> +	if (vf_num == 0) {
> +		memset(sriov, 0, sizeof(*sriov));
> +		return 1;
> +	}
> +
> +	/* Check multi-queue mode. */
> +	if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
> +		(dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB_RSS)
> ||
> +		(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
> +		/* SRIOV only works in VMDq enable mode */
> +		PMD_INIT_LOG(ERR, " SRIOV active, "
> +				"invlaid VMDQ rx mode (%u) or tx (%u)
> mode.",
> +				dev_conf->rxmode.mq_mode, dev_conf-
> >txmode.mq_mode);
> +		return (-EINVAL);
> +	}
> +
> +	switch (dev_conf->rxmode.mq_mode) {
> +	case ETH_MQ_RX_VMDQ_DCB:
> +		if (vf_num <= ETH_16_POOLS)
> +			sriov->nb_rx_q_per_pool = 8;
> +		else if (vf_num <= ETH_32_POOLS)
> +			sriov->nb_rx_q_per_pool = 4;
> +		else {
> +			PMD_INIT_LOG(ERR,
> +				"DCB (SRIOV active) - VF count (%d) must be
> less or equal 32.",
> +				vf_num);
> +			return (-EINVAL);
> +		}
> +
> +		if (dev->data->nb_rx_queues < sriov->nb_rx_q_per_pool) {
> +			PMD_INIT_LOG(WARNING,
> +				"DCB (SRIOV active) rx queues (%d) count is
> not equal %d.",
> +				dev->data->nb_rx_queues,
> +				sriov->nb_rx_q_per_pool);
> +		}
> +		break;
> +	case ETH_MQ_RX_RSS:
> +		PMD_INIT_LOG(INFO, "RSS (SRIOV active), "
> +				"rx mq mode is changed from: mq_mode %u
> into VMDQ mq_mode %u.",
> +				dev_conf->rxmode.mq_mode, dev->data-
> >dev_conf.rxmode.mq_mode);
> +		dev->data->dev_conf.rxmode.mq_mode =
> ETH_MQ_RX_VMDQ_RSS;
> +		/* falltrought */
> +	case ETH_MQ_RX_VMDQ_RSS:
> +		if (vf_num >= ETH_64_POOLS) {
> +			/* FIXME: Is vf_num > 64 realy supported by
> hardware? */
> +			PMD_INIT_LOG(ERR, "RSS (SRIOV active), "
> +					"VFs num must be less or equal 64.");
> +				return (-EINVAL);
> +		} else if (vf_num >= ETH_32_POOLS) {
> +			if (dev->data->nb_rx_queues != 1 && dev->data-
> >nb_rx_queues != 2) {
> +				PMD_INIT_LOG(ERR, "RSS (SRIOV active, VF
> count >= 32),"
> +						"invalid rx queues count %d.
> It must be 1 or 2.",
> +						dev->data->nb_rx_queues);
> +				return (-EINVAL);
> +			}
> +
> +			sriov->nb_rx_q_per_pool = dev->data-
> >nb_rx_queues;
> +		} else {
> +			/* FIXME: is VT(16) + RSS realy supported? */

Yes, I think it supports.

> +			if (dev->data->nb_rx_queues != 4) {
> +				PMD_INIT_LOG(ERR, "RSS (SRIOV active, VFs
> count < 32), "
> +						"invalid rx queues count %d.
> It must be 4.",
> +						dev->data->nb_rx_queues);
> +				return (-EINVAL);
> +			}
> +
> +			sriov->nb_rx_q_per_pool = 4;

Better to use macro to replace the number, so does above.

> +		}
> +		break;
> +	default: /* ETH_MQ_RX_VMDQ_ONLY or ETH_MQ_RX_NONE */
> +		/* if nothing mq mode configure, use default scheme */
> +		if (dev->data->dev_conf.rxmode.mq_mode !=
> ETH_MQ_RX_VMDQ_ONLY) {
> +			PMD_INIT_LOG(INFO, "Rx mq mode changed
> from %u into VMDQ %u.",
> +					dev->data-
> >dev_conf.rxmode.mq_mode, ETH_MQ_RX_VMDQ_ONLY);
> +
> +			dev->data->dev_conf.rxmode.mq_mode =
> ETH_MQ_RX_VMDQ_ONLY;
> +		}
> +
> +		/* queue 0 of each pool is used. */
> +		sriov->nb_rx_q_per_pool = 1;
> +		break;
> +	}
> +
> +	switch (dev_conf->txmode.mq_mode) {
> +	case ETH_MQ_TX_VMDQ_DCB: /* DCB VMDQ in SRIOV mode*/
> +		if (vf_num <= ETH_16_POOLS)
> +			sriov->nb_tx_q_per_pool = 8;
> +		else if (vf_num <= ETH_32_POOLS)
> +			sriov->nb_tx_q_per_pool = 4;
> +		else if (vf_num <= ETH_64_POOLS)
> +			sriov->nb_tx_q_per_pool = 1;
> +		else {
> +			PMD_INIT_LOG(ERR, "DCB (SRIOV active), "
> +					"VF count (%d) must be less or equal
> 64.",
> +				vf_num);
> +			return (-EINVAL);
> +		}
> +		break;
> +	default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
> +		/* if nothing mq mode configure, use default scheme */
> +		if (dev->data->dev_conf.txmode.mq_mode !=
> ETH_MQ_TX_VMDQ_ONLY) {
> +			PMD_INIT_LOG(INFO, "Tx mq mode is changed
> from %u into VMDQ %u.",
> +					dev->data-
> >dev_conf.txmode.mq_mode, ETH_MQ_TX_VMDQ_ONLY);
> +
> +			dev->data->dev_conf.txmode.mq_mode =
> ETH_MQ_TX_VMDQ_ONLY;
> +		}
> +
> +		/* queue 0 of each pool is used. */
> +		sriov->nb_tx_q_per_pool = 1;
> +		break;
> +	}
> +
> +	sriov->def_vmdq_idx = vf_num;
> +
> +	/*
> +	 * Pools starts at 2xN, 4xN or 8xN
> +	 */
> +	if (vf_num >= ETH_32_POOLS) {
> +		/* This must be vf_num <= ETH_64_POOLS */
> +		sriov->active = ETH_64_POOLS;
> +		sriov->def_pool_q_idx = vf_num * 2;
> +	} else if (vf_num >= ETH_16_POOLS) {
> +		sriov->active = ETH_32_POOLS;
> +		sriov->def_pool_q_idx = vf_num * 4;
> +	} else {
> +		sriov->active = ETH_16_POOLS;
> +		sriov->def_pool_q_idx = vf_num * 8;
> +	}
> +
> +	/* Check if available queus count is not less than allocated.*/

A typo: queus

> +	if (dev->data->nb_rx_queues > sriov->nb_rx_q_per_pool) {
> +		PMD_INIT_LOG(ERR, "SRIOV active, rx queue count must
> less or equal %d.",
> +						sriov->nb_rx_q_per_pool);
> +				return (-EINVAL);
> +	}
> +
> +	if (dev->data->nb_rx_queues > sriov->nb_tx_q_per_pool) {

Replace nb_rx_queues with nb_tx_queues? 

> +		PMD_INIT_LOG(ERR, "SRIOV active, tx queue count must
> less or equal %d.",
> +				sriov->nb_tx_q_per_pool);
> +		return (-EINVAL);
> +	}
> +
> +	return 0;
>  }
> 
>  int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
> --
> 1.9.1

Re: [dpdk-dev] [PATCH v4 4/7] move rte_eth_dev_check_mq_mode() logic to driver

[Pawel Wodkowski]

On 2015-02-25 07:14, Ouyang, Changchun wrote:
>
>
>> -----Original Message-----
>> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pawel Wodkowski
>> Sent: Thursday, February 19, 2015 11:55 PM
>> To: dev@dpdk.org
>> Subject: [dpdk-dev] [PATCH v4 4/7] move rte_eth_dev_check_mq_mode()
>> logic to driver
>>
>> Function rte_eth_dev_check_mq_mode() is driver specific. It should be
>> done in PF configuration phase. This patch move igb/ixgbe driver specific mq
>> check and SRIOV configuration code to driver part. Also rewriting log
>> messages to be shorter and more descriptive.
>>
>> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
>> ---
>>   lib/librte_ether/rte_ethdev.c       | 197 -----------------------------------
>>   lib/librte_pmd_e1000/igb_ethdev.c   |  43 ++++++++
>>   lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 105 ++++++++++++++++++-
>>   lib/librte_pmd_ixgbe/ixgbe_ethdev.h |   5 +-
>>   lib/librte_pmd_ixgbe/ixgbe_pf.c     | 202
>> +++++++++++++++++++++++++++++++-----
>>   5 files changed, 327 insertions(+), 225 deletions(-)
>>
>> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
>> index 4007054..aa27e39 100644
>> --- a/lib/librte_ether/rte_ethdev.c
>> +++ b/lib/librte_ether/rte_ethdev.c
>> @@ -502,195 +502,6 @@ rte_eth_dev_tx_queue_config(struct rte_eth_dev
>> *dev, uint16_t nb_queues)
>>   	return (0);
>>   }
>>
>> -static int
>> -rte_eth_dev_check_vf_rss_rxq_num(uint8_t port_id, uint16_t nb_rx_q) -{
>> -	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
>> -	switch (nb_rx_q) {
>> -	case 1:
>> -	case 2:
>> -		RTE_ETH_DEV_SRIOV(dev).active =
>> -			ETH_64_POOLS;
>> -		break;
>> -	case 4:
>> -		RTE_ETH_DEV_SRIOV(dev).active =
>> -			ETH_32_POOLS;
>> -		break;
>> -	default:
>> -		return -EINVAL;
>> -	}
>> -
>> -	RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool = nb_rx_q;
>> -	RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx =
>> -		dev->pci_dev->max_vfs * nb_rx_q;
>> -
>> -	return 0;
>> -}
>> -
>> -static int
>> -rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, uint16_t
>> nb_tx_q,
>> -		      const struct rte_eth_conf *dev_conf)
>> -{
>> -	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
>> -
>> -	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
>> -		/* check multi-queue mode */
>> -		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
>> -		    (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB_RSS)
>> ||
>> -		    (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
>> -			/* SRIOV only works in VMDq enable mode */
>> -			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
>> -					" SRIOV active, "
>> -					"wrong VMDQ mq_mode rx %u
>> tx %u\n",
>> -					port_id,
>> -					dev_conf->rxmode.mq_mode,
>> -					dev_conf->txmode.mq_mode);
>> -			return (-EINVAL);
>> -		}
>> -
>> -		switch (dev_conf->rxmode.mq_mode) {
>> -		case ETH_MQ_RX_VMDQ_DCB:
>> -		case ETH_MQ_RX_VMDQ_DCB_RSS:
>> -			/* DCB/RSS VMDQ in SRIOV mode, not implement
>> yet */
>> -			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
>> -					" SRIOV active, "
>> -					"unsupported VMDQ mq_mode
>> rx %u\n",
>> -					port_id, dev_conf-
>>> rxmode.mq_mode);
>> -			return (-EINVAL);
>> -		case ETH_MQ_RX_RSS:
>> -			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
>> -					" SRIOV active, "
>> -					"Rx mq mode is changed from:"
>> -					"mq_mode %u into VMDQ
>> mq_mode %u\n",
>> -					port_id,
>> -					dev_conf->rxmode.mq_mode,
>> -					dev->data-
>>> dev_conf.rxmode.mq_mode);
>> -		case ETH_MQ_RX_VMDQ_RSS:
>> -			dev->data->dev_conf.rxmode.mq_mode =
>> ETH_MQ_RX_VMDQ_RSS;
>> -			if (nb_rx_q <=
>> RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool)
>> -				if
>> (rte_eth_dev_check_vf_rss_rxq_num(port_id, nb_rx_q) != 0) {
>> -					PMD_DEBUG_TRACE("ethdev
>> port_id=%d"
>> -						" SRIOV active, invalid queue"
>> -						" number for VMDQ RSS,
>> allowed"
>> -						" value are 1, 2 or 4\n",
>> -						port_id);
>> -					return -EINVAL;
>> -				}
>> -			break;
>> -		default: /* ETH_MQ_RX_VMDQ_ONLY or
>> ETH_MQ_RX_NONE */
>> -			/* if nothing mq mode configure, use default scheme
>> */
>> -			dev->data->dev_conf.rxmode.mq_mode =
>> ETH_MQ_RX_VMDQ_ONLY;
>> -			if (RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool > 1)
>> -
>> 	RTE_ETH_DEV_SRIOV(dev).nb_rx_q_per_pool = 1;
>> -			break;
>> -		}
>> -
>> -		switch (dev_conf->txmode.mq_mode) {
>> -		case ETH_MQ_TX_VMDQ_DCB:
>> -			/* DCB VMDQ in SRIOV mode, not implement yet */
>> -			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
>> -					" SRIOV active, "
>> -					"unsupported VMDQ mq_mode
>> tx %u\n",
>> -					port_id, dev_conf-
>>> txmode.mq_mode);
>> -			return (-EINVAL);
>> -		default: /* ETH_MQ_TX_VMDQ_ONLY or
>> ETH_MQ_TX_NONE */
>> -			/* if nothing mq mode configure, use default scheme
>> */
>> -			dev->data->dev_conf.txmode.mq_mode =
>> ETH_MQ_TX_VMDQ_ONLY;
>> -			break;
>> -		}
>> -
>> -		/* check valid queue number */
>> -		if ((nb_rx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool)
>> ||
>> -		    (nb_tx_q > RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool))
>> {
>> -			PMD_DEBUG_TRACE("ethdev port_id=%d SRIOV
>> active, "
>> -				    "queue number must less equal to %d\n",
>> -					port_id,
>> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool);
>> -			return (-EINVAL);
>> -		}
>> -	} else {
>> -		/* For vmdb+dcb mode check our configuration before we
>> go further */
>> -		if (dev_conf->rxmode.mq_mode ==
>> ETH_MQ_RX_VMDQ_DCB) {
>> -			const struct rte_eth_vmdq_dcb_conf *conf;
>> -
>> -			if (nb_rx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
>> -				PMD_DEBUG_TRACE("ethdev port_id=%d
>> VMDQ+DCB, nb_rx_q "
>> -						"!= %d\n",
>> -						port_id,
>> ETH_VMDQ_DCB_NUM_QUEUES);
>> -				return (-EINVAL);
>> -			}
>> -			conf = &(dev_conf->rx_adv_conf.vmdq_dcb_conf);
>> -			if (! (conf->nb_queue_pools == ETH_16_POOLS ||
>> -			       conf->nb_queue_pools == ETH_32_POOLS)) {
>> -				PMD_DEBUG_TRACE("ethdev port_id=%d
>> VMDQ+DCB selected, "
>> -						"nb_queue_pools must
>> be %d or %d\n",
>> -						port_id, ETH_16_POOLS,
>> ETH_32_POOLS);
>> -				return (-EINVAL);
>> -			}
>> -		}
>> -		if (dev_conf->txmode.mq_mode ==
>> ETH_MQ_TX_VMDQ_DCB) {
>> -			const struct rte_eth_vmdq_dcb_tx_conf *conf;
>> -
>> -			if (nb_tx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
>> -				PMD_DEBUG_TRACE("ethdev port_id=%d
>> VMDQ+DCB, nb_tx_q "
>> -						"!= %d\n",
>> -						port_id,
>> ETH_VMDQ_DCB_NUM_QUEUES);
>> -				return (-EINVAL);
>> -			}
>> -			conf = &(dev_conf-
>>> tx_adv_conf.vmdq_dcb_tx_conf);
>> -			if (! (conf->nb_queue_pools == ETH_16_POOLS ||
>> -			       conf->nb_queue_pools == ETH_32_POOLS)) {
>> -				PMD_DEBUG_TRACE("ethdev port_id=%d
>> VMDQ+DCB selected, "
>> -						"nb_queue_pools != %d or
>> nb_queue_pools "
>> -						"!= %d\n",
>> -						port_id, ETH_16_POOLS,
>> ETH_32_POOLS);
>> -				return (-EINVAL);
>> -			}
>> -		}
>> -
>> -		/* For DCB mode check our configuration before we go
>> further */
>> -		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
>> -			const struct rte_eth_dcb_rx_conf *conf;
>> -
>> -			if (nb_rx_q != ETH_DCB_NUM_QUEUES) {
>> -				PMD_DEBUG_TRACE("ethdev port_id=%d
>> DCB, nb_rx_q "
>> -						"!= %d\n",
>> -						port_id,
>> ETH_DCB_NUM_QUEUES);
>> -				return (-EINVAL);
>> -			}
>> -			conf = &(dev_conf->rx_adv_conf.dcb_rx_conf);
>> -			if (! (conf->nb_tcs == ETH_4_TCS ||
>> -			       conf->nb_tcs == ETH_8_TCS)) {
>> -				PMD_DEBUG_TRACE("ethdev port_id=%d
>> DCB selected, "
>> -						"nb_tcs != %d or nb_tcs "
>> -						"!= %d\n",
>> -						port_id, ETH_4_TCS,
>> ETH_8_TCS);
>> -				return (-EINVAL);
>> -			}
>> -		}
>> -
>> -		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
>> -			const struct rte_eth_dcb_tx_conf *conf;
>> -
>> -			if (nb_tx_q != ETH_DCB_NUM_QUEUES) {
>> -				PMD_DEBUG_TRACE("ethdev port_id=%d
>> DCB, nb_tx_q "
>> -						"!= %d\n",
>> -						port_id,
>> ETH_DCB_NUM_QUEUES);
>> -				return (-EINVAL);
>> -			}
>> -			conf = &(dev_conf->tx_adv_conf.dcb_tx_conf);
>> -			if (! (conf->nb_tcs == ETH_4_TCS ||
>> -			       conf->nb_tcs == ETH_8_TCS)) {
>> -				PMD_DEBUG_TRACE("ethdev port_id=%d
>> DCB selected, "
>> -						"nb_tcs != %d or nb_tcs "
>> -						"!= %d\n",
>> -						port_id, ETH_4_TCS,
>> ETH_8_TCS);
>> -				return (-EINVAL);
>> -			}
>> -		}
>> -	}
>> -	return 0;
>> -}
>> -
>>   int
>>   rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>>   		      const struct rte_eth_conf *dev_conf) @@ -798,14 +609,6
>> @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t
>> nb_tx_q,
>>   							ETHER_MAX_LEN;
>>   	}
>>
>> -	/* multipe queue mode checking */
>> -	diag = rte_eth_dev_check_mq_mode(port_id, nb_rx_q, nb_tx_q,
>> dev_conf);
>> -	if (diag != 0) {
>> -		PMD_DEBUG_TRACE("port%d
>> rte_eth_dev_check_mq_mode = %d\n",
>> -				port_id, diag);
>> -		return diag;
>> -	}
>> -
>>   	/*
>>   	 * Setup new number of RX/TX queues and reconfigure device.
>>   	 */
>> diff --git a/lib/librte_pmd_e1000/igb_ethdev.c
>> b/lib/librte_pmd_e1000/igb_ethdev.c
>> index d451086..5c922df 100644
>> --- a/lib/librte_pmd_e1000/igb_ethdev.c
>> +++ b/lib/librte_pmd_e1000/igb_ethdev.c
>> @@ -742,6 +742,49 @@ eth_igb_configure(struct rte_eth_dev *dev)
>>   	struct e1000_interrupt *intr =
>>   		E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
>>
>> +	enum rte_eth_rx_mq_mode rx_mq_mode = dev->data-
>>> dev_conf.rxmode.mq_mode;
>> +	enum rte_eth_tx_mq_mode tx_mq_mode =
>> +dev->data->dev_conf.txmode.mq_mode;
>> +
>> +	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
>> +		/* Check multi-queue mode.
>> +		 * To no break software we accept ETH_MQ_RX_NONE as
>> this might be used
>> +		 * to turn off VLAN filter.
>> +		 *
>> +		 * FIXME if support RSS together with VMDq & SRIOV
>> +		 */
>> +		if (rx_mq_mode != ETH_MQ_RX_NONE &&
>> +				(rx_mq_mode & ETH_MQ_RX_VMDQ_ONLY)
>> == 0) {
>> +			PMD_INIT_LOG(WARNING, " SRIOV active, RX
>> mode %d is not supported."
>> +					"Driver will behave as in %d mode as
>> fallback.",
>> +					rx_mq_mode, ETH_MQ_RX_NONE);
>> +		}
>> +
>> +		/* TX mode is not used in in this driver so mode might be
>> ignored.*/
>> +		if (tx_mq_mode != ETH_MQ_TX_VMDQ_ONLY) {
>> +			/* SRIOV only works in VMDq enable mode */
>> +			PMD_INIT_LOG(WARNING, "TX mode %d is not
>> supported in SRIOV. "
>> +					"Driver will behave as in %d mode as
>> fallback.",
>> +					tx_mq_mode,
>> ETH_MQ_TX_VMDQ_ONLY);
>> +		}
>> +	} else {
>> +		/*
>> +		 * To no break software that set invalid mode, only display
>> warning if
>> +		 * invalid mode is used.
>> +		 */
>> +		if ((rx_mq_mode & (ETH_MQ_RX_RSS_FLAG |
>> ETH_MQ_RX_VMDQ_FLAG))
>> +				!= rx_mq_mode) {
>> +			PMD_INIT_LOG(WARNING, "RX mode %d is not
>> supported. Driver will "
>> +					"behave as in %d mode as fallback.",
>> rx_mq_mode,
>> +					rx_mq_mode &
>> (ETH_MQ_RX_RSS_FLAG | ETH_MQ_RX_VMDQ_FLAG));
>> +		}
>> +
>> +		if (tx_mq_mode != ETH_MQ_TX_NONE) {
>> +			PMD_INIT_LOG(WARNING, "TX mode %d is not
>> supported."
>> +					"Driver will behave as in %d mode as
>> fallback.",
>> +					tx_mq_mode, ETH_MQ_TX_NONE);
>> +		}
>> +	}
>> +
>
> Better to have new function for these new codes.
>
>>   	PMD_INIT_FUNC_TRACE();
>>   	intr->flags |= E1000_FLAG_NEED_LINK_UPDATE;
>>   	PMD_INIT_FUNC_TRACE();
>> diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
>> b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
>> index 02b9cda..8e9da3b 100644
>> --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
>> +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
>> @@ -863,7 +863,8 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct
>> eth_driver *eth_drv,
>>   			"Failed to allocate %u bytes needed to store "
>>   			"MAC addresses",
>>   			ETHER_ADDR_LEN * hw->mac.num_rar_entries);
>> -		return -ENOMEM;
>> +		diag = -ENOMEM;
>> +		goto error;
>>   	}
>>   	/* Copy the permanent MAC address */
>>   	ether_addr_copy((struct ether_addr *) hw->mac.perm_addr, @@ -
>> 876,7 +877,8 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct
>> eth_driver *eth_drv,
>>   		PMD_INIT_LOG(ERR,
>>   			"Failed to allocate %d bytes needed to store MAC
>> addresses",
>>   			ETHER_ADDR_LEN * IXGBE_VMDQ_NUM_UC_MAC);
>> -		return -ENOMEM;
>> +		diag = -ENOMEM;
>> +		goto error;
>>   	}
>>
>>   	/* initialize the vfta */
>> @@ -886,7 +888,13 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct
>> eth_driver *eth_drv,
>>   	memset(hwstrip, 0, sizeof(*hwstrip));
>>
>>   	/* initialize PF if max_vfs not zero */
>> -	ixgbe_pf_host_init(eth_dev);
>> +	diag = ixgbe_pf_host_init(eth_dev);
>> +	if (diag < 0) {
>> +		PMD_INIT_LOG(ERR,
>> +			"Failed to allocate %d bytes needed to store MAC
>> addresses",
>> +			ETHER_ADDR_LEN * IXGBE_VMDQ_NUM_UC_MAC);
>> +		goto error;
>> +	}
>>
>>   	ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
>>   	/* let hardware know driver is loaded */ @@ -918,6 +926,11 @@
>> eth_ixgbe_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
>>   	ixgbe_enable_intr(eth_dev);
>>
>>   	return 0;
>> +
>> +error:
>> +	rte_free(eth_dev->data->hash_mac_addrs);
>> +	rte_free(eth_dev->data->mac_addrs);
>> +	return diag;
>>   }
>>
>>
>> @@ -1434,7 +1447,93 @@ ixgbe_dev_configure(struct rte_eth_dev *dev)
>>   	struct ixgbe_interrupt *intr =
>>   		IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
>>
>> +	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
>> +	struct rte_eth_dev_info dev_info;
>> +	int retval;
>> +
>>   	PMD_INIT_FUNC_TRACE();
>> +	retval = ixgbe_pf_configure_mq_sriov(dev);
>
> Do we need a non-sriov version to configure mq mode?
> In ixgbe_pf_configure_mq_sriov, in the case of no vf,
> It will early return, then no chance to configure and check mq mode and queue number.
> Do I miss anything here?

Function in case of no vf function return 1 and if bellow will allow 
non-SRIOV configuration.

>
>> +	if (retval <= 0)
>> +		return retval;
>> +
>> +	uint16_t nb_rx_q = dev->data->nb_rx_queues;
>> +	uint16_t nb_tx_q = dev->data->nb_rx_queues;
>
> Rx or tx here?

Yes, it should be tx.

>
>> +
>> +	/* For DCB we need to obtain maximum number of queues
>> dinamically,
>> +	 * as this depends on max VF exported in PF. */
>> +	if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
>> +		(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
>> +		/* Use dev_infos_get field as this might be pointer to PF or
>> VF. */
>> +		(*dev->dev_ops->dev_infos_get)(dev, &dev_info);
>> +	}
>> +
>> +	/* For vmdq+dcb mode check our configuration before we go further
>> */
>> +	if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) {
>> +		const struct rte_eth_vmdq_dcb_conf *conf;
>> +
>> +		if (nb_rx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
>> +			PMD_INIT_LOG(ERR, " VMDQ+DCB,
>> nb_rx_q != %d\n",
>> +					ETH_VMDQ_DCB_NUM_QUEUES);
>> +			return (-EINVAL);
>> +		}
>> +		conf = &(dev_conf->rx_adv_conf.vmdq_dcb_conf);
>> +		if (conf->nb_queue_pools != ETH_16_POOLS &&
>> +				conf->nb_queue_pools != ETH_32_POOLS) {
>> +			PMD_INIT_LOG(ERR, " VMDQ+DCB selected, "
>> +					"number of RX queue pools must
>> be %d or %d\n",
>> +					ETH_16_POOLS, ETH_32_POOLS);
>> +			return (-EINVAL);
>> +		}
>> +	} else if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
>> +		/* For DCB mode check out configuration before we go
>> further */
>> +		const struct rte_eth_dcb_rx_conf *conf;
>> +
>> +		if (nb_rx_q != dev_info.max_rx_queues) {
>> +			PMD_INIT_LOG(ERR, " DCB, number of RX
>> queues != %d\n",
>> +					ETH_DCB_NUM_QUEUES);
>> +			return (-EINVAL);
>> +		}
>> +		conf = &(dev_conf->rx_adv_conf.dcb_rx_conf);
>> +		if (conf->nb_tcs != ETH_4_TCS &&
>> +			   conf->nb_tcs != ETH_8_TCS) {
>> +			PMD_INIT_LOG(ERR, " DCB, number of RX TC must
>> be %d or %d\n",
>> +					ETH_4_TCS, ETH_8_TCS);
>> +			return (-EINVAL);
>> +		}
>> +	}
>> +
>> +	if (dev_conf->txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB) {
>> +		const struct rte_eth_vmdq_dcb_tx_conf *conf;
>> +
>> +		if (nb_tx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
>> +			PMD_INIT_LOG(ERR, " VMDQ+DCB, number of TX
>> queues != %d\n",
>> +					ETH_VMDQ_DCB_NUM_QUEUES);
>> +			return (-EINVAL);
>> +		}
>> +		conf = &(dev_conf->tx_adv_conf.vmdq_dcb_tx_conf);
>> +		if (conf->nb_queue_pools != ETH_16_POOLS &&
>> +			   conf->nb_queue_pools != ETH_32_POOLS) {
>> +			PMD_INIT_LOG(ERR, " VMDQ+DCB selected, "
>> +					"number of TX qqueue pools must
>> be %d or %d\n",
>> +					ETH_16_POOLS, ETH_32_POOLS);
>> +			return (-EINVAL);
>> +		}
>> +	} else if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
>> +		const struct rte_eth_dcb_tx_conf *conf;
>> +
>> +		if (nb_tx_q != dev_info.max_tx_queues) {
>> +			PMD_INIT_LOG(ERR, " DCB, number of queues must
>> be %d\n",
>> +					ETH_DCB_NUM_QUEUES);
>> +			return (-EINVAL);
>> +		}
>> +		conf = &(dev_conf->tx_adv_conf.dcb_tx_conf);
>> +		if (conf->nb_tcs != ETH_4_TCS &&
>> +			   conf->nb_tcs != ETH_8_TCS) {
>> +			PMD_INIT_LOG(ERR, " DCB, number of TX TC must
>> be %d or %d\n",
>> +					ETH_4_TCS, ETH_8_TCS);
>> +			return (-EINVAL);
>> +		}
>> +	}
>
> Better to have a separate function for these new codes.
>
>>
>>   	/* set flag to update link status after init */
>>   	intr->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; diff --git
>> a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
>> b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
>> index 1383194..e70a6e8 100644
>> --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
>> +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
>> @@ -348,11 +348,14 @@ void ixgbe_vlan_hw_strip_enable_all(struct
>> rte_eth_dev *dev);
>>
>>   void ixgbe_vlan_hw_strip_disable_all(struct rte_eth_dev *dev);
>>
>> -void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev);
>> +int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev);
>>
>>   void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev);
>>
>> +int ixgbe_pf_configure_mq_sriov(struct rte_eth_dev *dev);
>> +
>>   int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev);
>>
>>   uint32_t ixgbe_convert_vm_rx_mask_to_val(uint16_t rx_mask, uint32_t
>> orig_val);
>> +
>>   #endif /* _IXGBE_ETHDEV_H_ */
>> diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c
>> b/lib/librte_pmd_ixgbe/ixgbe_pf.c index 4103e97..a7b9333 100644
>> --- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
>> +++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
>> @@ -91,7 +91,7 @@ ixgbe_mb_intr_setup(struct rte_eth_dev *dev)
>>   	return 0;
>>   }
>>
>> -void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
>> +int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
>>   {
>>   	struct ixgbe_vf_info **vfinfo =
>>   		IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data-
>>> dev_private);
>> @@ -101,39 +101,31 @@ void ixgbe_pf_host_init(struct rte_eth_dev
>> *eth_dev)
>>           IXGBE_DEV_PRIVATE_TO_UTA(eth_dev->data->dev_private);
>>   	struct ixgbe_hw *hw =
>>   		IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
>> +	int retval;
>>   	uint16_t vf_num;
>> -	uint8_t nb_queue;
>>
>>   	PMD_INIT_FUNC_TRACE();
>>
>> -	RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
>> -	if (0 == (vf_num = dev_num_vf(eth_dev)))
>> -		return;
>> +	/* Fill sriov structure using default configuration. */
>> +	retval = ixgbe_pf_configure_mq_sriov(eth_dev);
>> +	if (retval != 0) {
>> +		if (retval < 0)
>> +			PMD_INIT_LOG(ERR, " Setting up SRIOV with default
>> device "
>> +					"configuration should not fail. This is a
>> BUG.");
>> +		return 0;
>> +	}
>>
>> +	vf_num = dev_num_vf(eth_dev);
>>   	*vfinfo = rte_zmalloc("vf_info", sizeof(struct ixgbe_vf_info) *
>> vf_num, 0);
>> -	if (*vfinfo == NULL)
>> -		rte_panic("Cannot allocate memory for private VF data\n");
>> +	if (*vfinfo == NULL) {
>> +		PMD_INIT_LOG(ERR, "Cannot allocate memory for private VF
>> data.");
>> +		return (-ENOMEM);
>> +	}
>>
>>   	memset(mirror_info,0,sizeof(struct ixgbe_mirror_info));
>>   	memset(uta_info,0,sizeof(struct ixgbe_uta_info));
>>   	hw->mac.mc_filter_type = 0;
>>
>> -	if (vf_num >= ETH_32_POOLS) {
>> -		nb_queue = 2;
>> -		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_64_POOLS;
>> -	} else if (vf_num >= ETH_16_POOLS) {
>> -		nb_queue = 4;
>> -		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_32_POOLS;
>> -	} else {
>> -		nb_queue = 8;
>> -		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS;
>> -	}
>> -
>> -	RTE_ETH_DEV_SRIOV(eth_dev).nb_rx_q_per_pool = nb_queue;
>> -	RTE_ETH_DEV_SRIOV(eth_dev).nb_tx_q_per_pool = nb_queue;
>> -	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
>> -	RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx =
>> (uint16_t)(vf_num * nb_queue);
>> -
>>   	ixgbe_vf_perm_addr_gen(eth_dev, vf_num);
>>
>>   	/* init_mailbox_params */
>> @@ -142,7 +134,169 @@ void ixgbe_pf_host_init(struct rte_eth_dev
>> *eth_dev)
>>   	/* set mb interrupt mask */
>>   	ixgbe_mb_intr_setup(eth_dev);
>>
>> -	return;
>> +	return 0;
>> +}
>> +
>> +
>> +/*
>> + * Function that make SRIOV configuration, based on device
>> +configuration,
>> + * number of requested queues and number of VF created.
>> + * Function returns:
>> + * 1 - SRIOV is not enabled (no VF created)
>> + * 0 - proper SRIOV configuration found.
>> + * -EINVAL - no suitable SRIOV configuration found.
>> + */
>> +int
>> +ixgbe_pf_configure_mq_sriov(struct rte_eth_dev *dev) {
>> +	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
>> +	struct rte_eth_dev_sriov *sriov = &RTE_ETH_DEV_SRIOV(dev);
>> +	uint16_t vf_num;
>> +
>> +	vf_num = dev_num_vf(dev);
>> +	if (vf_num == 0) {
>> +		memset(sriov, 0, sizeof(*sriov));
>> +		return 1;
>> +	}
>> +
>> +	/* Check multi-queue mode. */
>> +	if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
>> +		(dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB_RSS)
>> ||
>> +		(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
>> +		/* SRIOV only works in VMDq enable mode */
>> +		PMD_INIT_LOG(ERR, " SRIOV active, "
>> +				"invlaid VMDQ rx mode (%u) or tx (%u)
>> mode.",
>> +				dev_conf->rxmode.mq_mode, dev_conf-
>>> txmode.mq_mode);
>> +		return (-EINVAL);
>> +	}
>> +
>> +	switch (dev_conf->rxmode.mq_mode) {
>> +	case ETH_MQ_RX_VMDQ_DCB:
>> +		if (vf_num <= ETH_16_POOLS)
>> +			sriov->nb_rx_q_per_pool = 8;
>> +		else if (vf_num <= ETH_32_POOLS)
>> +			sriov->nb_rx_q_per_pool = 4;
>> +		else {
>> +			PMD_INIT_LOG(ERR,
>> +				"DCB (SRIOV active) - VF count (%d) must be
>> less or equal 32.",
>> +				vf_num);
>> +			return (-EINVAL);
>> +		}
>> +
>> +		if (dev->data->nb_rx_queues < sriov->nb_rx_q_per_pool) {
>> +			PMD_INIT_LOG(WARNING,
>> +				"DCB (SRIOV active) rx queues (%d) count is
>> not equal %d.",
>> +				dev->data->nb_rx_queues,
>> +				sriov->nb_rx_q_per_pool);
>> +		}
>> +		break;
>> +	case ETH_MQ_RX_RSS:
>> +		PMD_INIT_LOG(INFO, "RSS (SRIOV active), "
>> +				"rx mq mode is changed from: mq_mode %u
>> into VMDQ mq_mode %u.",
>> +				dev_conf->rxmode.mq_mode, dev->data-
>>> dev_conf.rxmode.mq_mode);
>> +		dev->data->dev_conf.rxmode.mq_mode =
>> ETH_MQ_RX_VMDQ_RSS;
>> +		/* falltrought */
>> +	case ETH_MQ_RX_VMDQ_RSS:
>> +		if (vf_num >= ETH_64_POOLS) {
>> +			/* FIXME: Is vf_num > 64 realy supported by
>> hardware? */
>> +			PMD_INIT_LOG(ERR, "RSS (SRIOV active), "
>> +					"VFs num must be less or equal 64.");
>> +				return (-EINVAL);
>> +		} else if (vf_num >= ETH_32_POOLS) {
>> +			if (dev->data->nb_rx_queues != 1 && dev->data-
>>> nb_rx_queues != 2) {
>> +				PMD_INIT_LOG(ERR, "RSS (SRIOV active, VF
>> count >= 32),"
>> +						"invalid rx queues count %d.
>> It must be 1 or 2.",
>> +						dev->data->nb_rx_queues);
>> +				return (-EINVAL);
>> +			}
>> +
>> +			sriov->nb_rx_q_per_pool = dev->data-
>>> nb_rx_queues;
>> +		} else {
>> +			/* FIXME: is VT(16) + RSS realy supported? */
>
> Yes, I think it supports.
>
>> +			if (dev->data->nb_rx_queues != 4) {
>> +				PMD_INIT_LOG(ERR, "RSS (SRIOV active, VFs
>> count < 32), "
>> +						"invalid rx queues count %d.
>> It must be 4.",
>> +						dev->data->nb_rx_queues);
>> +				return (-EINVAL);
>> +			}
>> +
>> +			sriov->nb_rx_q_per_pool = 4;
>
> Better to use macro to replace the number, so does above.
>
>> +		}
>> +		break;
>> +	default: /* ETH_MQ_RX_VMDQ_ONLY or ETH_MQ_RX_NONE */
>> +		/* if nothing mq mode configure, use default scheme */
>> +		if (dev->data->dev_conf.rxmode.mq_mode !=
>> ETH_MQ_RX_VMDQ_ONLY) {
>> +			PMD_INIT_LOG(INFO, "Rx mq mode changed
>> from %u into VMDQ %u.",
>> +					dev->data-
>>> dev_conf.rxmode.mq_mode, ETH_MQ_RX_VMDQ_ONLY);
>> +
>> +			dev->data->dev_conf.rxmode.mq_mode =
>> ETH_MQ_RX_VMDQ_ONLY;
>> +		}
>> +
>> +		/* queue 0 of each pool is used. */
>> +		sriov->nb_rx_q_per_pool = 1;
>> +		break;
>> +	}
>> +
>> +	switch (dev_conf->txmode.mq_mode) {
>> +	case ETH_MQ_TX_VMDQ_DCB: /* DCB VMDQ in SRIOV mode*/
>> +		if (vf_num <= ETH_16_POOLS)
>> +			sriov->nb_tx_q_per_pool = 8;
>> +		else if (vf_num <= ETH_32_POOLS)
>> +			sriov->nb_tx_q_per_pool = 4;
>> +		else if (vf_num <= ETH_64_POOLS)
>> +			sriov->nb_tx_q_per_pool = 1;
>> +		else {
>> +			PMD_INIT_LOG(ERR, "DCB (SRIOV active), "
>> +					"VF count (%d) must be less or equal
>> 64.",
>> +				vf_num);
>> +			return (-EINVAL);
>> +		}
>> +		break;
>> +	default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
>> +		/* if nothing mq mode configure, use default scheme */
>> +		if (dev->data->dev_conf.txmode.mq_mode !=
>> ETH_MQ_TX_VMDQ_ONLY) {
>> +			PMD_INIT_LOG(INFO, "Tx mq mode is changed
>> from %u into VMDQ %u.",
>> +					dev->data-
>>> dev_conf.txmode.mq_mode, ETH_MQ_TX_VMDQ_ONLY);
>> +
>> +			dev->data->dev_conf.txmode.mq_mode =
>> ETH_MQ_TX_VMDQ_ONLY;
>> +		}
>> +
>> +		/* queue 0 of each pool is used. */
>> +		sriov->nb_tx_q_per_pool = 1;
>> +		break;
>> +	}
>> +
>> +	sriov->def_vmdq_idx = vf_num;
>> +
>> +	/*
>> +	 * Pools starts at 2xN, 4xN or 8xN
>> +	 */
>> +	if (vf_num >= ETH_32_POOLS) {
>> +		/* This must be vf_num <= ETH_64_POOLS */
>> +		sriov->active = ETH_64_POOLS;
>> +		sriov->def_pool_q_idx = vf_num * 2;
>> +	} else if (vf_num >= ETH_16_POOLS) {
>> +		sriov->active = ETH_32_POOLS;
>> +		sriov->def_pool_q_idx = vf_num * 4;
>> +	} else {
>> +		sriov->active = ETH_16_POOLS;
>> +		sriov->def_pool_q_idx = vf_num * 8;
>> +	}
>> +
>> +	/* Check if available queus count is not less than allocated.*/
>
> A typo: queus
>
>> +	if (dev->data->nb_rx_queues > sriov->nb_rx_q_per_pool) {
>> +		PMD_INIT_LOG(ERR, "SRIOV active, rx queue count must
>> less or equal %d.",
>> +						sriov->nb_rx_q_per_pool);
>> +				return (-EINVAL);
>> +	}
>> +
>> +	if (dev->data->nb_rx_queues > sriov->nb_tx_q_per_pool) {
>
> Replace nb_rx_queues with nb_tx_queues?

Yes, you are right.

>
>> +		PMD_INIT_LOG(ERR, "SRIOV active, tx queue count must
>> less or equal %d.",
>> +				sriov->nb_tx_q_per_pool);
>> +		return (-EINVAL);
>> +	}
>> +
>> +	return 0;
>>   }
>>
>>   int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
>> --
>> 1.9.1
>


-- 
Pawel

Re: [dpdk-dev] [PATCH v4 4/7] move rte_eth_dev_check_mq_mode() logic to driver

[Wu, Jingjing]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pawel Wodkowski
> Sent: Thursday, February 19, 2015 11:55 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v4 4/7] move rte_eth_dev_check_mq_mode()
> logic to driver
> 
> Function rte_eth_dev_check_mq_mode() is driver specific. It should be
> done in PF configuration phase. This patch move igb/ixgbe driver specific mq
> check and SRIOV configuration code to driver part. Also rewriting log
> messages to be shorter and more descriptive.
> 
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> ---
>  lib/librte_ether/rte_ethdev.c       | 197 -----------------------------------
>  lib/librte_pmd_e1000/igb_ethdev.c   |  43 ++++++++
>  lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 105 ++++++++++++++++++-
>  lib/librte_pmd_ixgbe/ixgbe_ethdev.h |   5 +-
>  lib/librte_pmd_ixgbe/ixgbe_pf.c     | 202
> +++++++++++++++++++++++++++++++-----
>  5 files changed, 327 insertions(+), 225 deletions(-)
> 
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> index 02b9cda..8e9da3b 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> @@ -863,7 +863,8 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct
> eth_driver *eth_drv,
>  			"Failed to allocate %u bytes needed to store "
>  			"MAC addresses",
>  			ETHER_ADDR_LEN * hw->mac.num_rar_entries);
> -		return -ENOMEM;
> +		diag = -ENOMEM;
> +		goto error;
>  	}
>  	/* Copy the permanent MAC address */
>  	ether_addr_copy((struct ether_addr *) hw->mac.perm_addr, @@ -
> 876,7 +877,8 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct
> eth_driver *eth_drv,
>  		PMD_INIT_LOG(ERR,
>  			"Failed to allocate %d bytes needed to store MAC
> addresses",
>  			ETHER_ADDR_LEN * IXGBE_VMDQ_NUM_UC_MAC);
> -		return -ENOMEM;
> +		diag = -ENOMEM;
> +		goto error;
>  	}
> 
>  	/* initialize the vfta */
> @@ -886,7 +888,13 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct
> eth_driver *eth_drv,
>  	memset(hwstrip, 0, sizeof(*hwstrip));
> 
>  	/* initialize PF if max_vfs not zero */
> -	ixgbe_pf_host_init(eth_dev);
> +	diag = ixgbe_pf_host_init(eth_dev);
> +	if (diag < 0) {
> +		PMD_INIT_LOG(ERR,
> +			"Failed to allocate %d bytes needed to store MAC
> addresses",
> +			ETHER_ADDR_LEN * IXGBE_VMDQ_NUM_UC_MAC);
> +		goto error;
> +	}
> 
>  	ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
>  	/* let hardware know driver is loaded */ @@ -918,6 +926,11 @@
> eth_ixgbe_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
>  	ixgbe_enable_intr(eth_dev);
> 
>  	return 0;
> +
> +error:
> +	rte_free(eth_dev->data->hash_mac_addrs);
> +	rte_free(eth_dev->data->mac_addrs);
> +	return diag;
>  }
> 
> 
> @@ -1434,7 +1447,93 @@ ixgbe_dev_configure(struct rte_eth_dev *dev)
>  	struct ixgbe_interrupt *intr =
>  		IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
> 
> +	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
> +	struct rte_eth_dev_info dev_info;
> +	int retval;
> +
>  	PMD_INIT_FUNC_TRACE();
> +	retval = ixgbe_pf_configure_mq_sriov(dev);
> +	if (retval <= 0)
> +		return retval;
> +
> +	uint16_t nb_rx_q = dev->data->nb_rx_queues;
> +	uint16_t nb_tx_q = dev->data->nb_rx_queues;
> +
> +	/* For DCB we need to obtain maximum number of queues
> dinamically,
> +	 * as this depends on max VF exported in PF. */
> +	if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
> +		(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
> +		/* Use dev_infos_get field as this might be pointer to PF or
> VF. */
> +		(*dev->dev_ops->dev_infos_get)(dev, &dev_info);
Why not call ixgbe_dev_info_get directly? And it looks only max_rx_queues and max_tx_queues
are used below, maybe hw->mac.max_rx_queues and hw->mac.max_tx_queues can be used
below instead of calling a function.

> +	}
> +
> +	/* For vmdq+dcb mode check our configuration before we go further
> */
> +	if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB) {
> +		const struct rte_eth_vmdq_dcb_conf *conf;
> +
> +		if (nb_rx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
> +			PMD_INIT_LOG(ERR, " VMDQ+DCB,
> nb_rx_q != %d\n",
> +					ETH_VMDQ_DCB_NUM_QUEUES);
> +			return (-EINVAL);
> +		}
> +		conf = &(dev_conf->rx_adv_conf.vmdq_dcb_conf);
> +		if (conf->nb_queue_pools != ETH_16_POOLS &&
> +				conf->nb_queue_pools != ETH_32_POOLS) {
> +			PMD_INIT_LOG(ERR, " VMDQ+DCB selected, "
> +					"number of RX queue pools must
> be %d or %d\n",
> +					ETH_16_POOLS, ETH_32_POOLS);
> +			return (-EINVAL);
> +		}
> +	} else if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
> +		/* For DCB mode check out configuration before we go
> further */
> +		const struct rte_eth_dcb_rx_conf *conf;
> +
> +		if (nb_rx_q != dev_info.max_rx_queues) {
> +			PMD_INIT_LOG(ERR, " DCB, number of RX
> queues != %d\n",
> +					ETH_DCB_NUM_QUEUES);
The check is using dev_info.max_rx_queues, while ETH_DCB_NUM_QUEUES in log.

> +			return (-EINVAL);
> +		}
> +		conf = &(dev_conf->rx_adv_conf.dcb_rx_conf);
> +		if (conf->nb_tcs != ETH_4_TCS &&
> +			   conf->nb_tcs != ETH_8_TCS) {
> +			PMD_INIT_LOG(ERR, " DCB, number of RX TC must
> be %d or %d\n",
> +					ETH_4_TCS, ETH_8_TCS);
> +			return (-EINVAL);
> +		}
> +	}
> +
> +	if (dev_conf->txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB) {
> +		const struct rte_eth_vmdq_dcb_tx_conf *conf;
> +
> +		if (nb_tx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
> +			PMD_INIT_LOG(ERR, " VMDQ+DCB, number of TX
> queues != %d\n",
> +					ETH_VMDQ_DCB_NUM_QUEUES);
> +			return (-EINVAL);
> +		}
> +		conf = &(dev_conf->tx_adv_conf.vmdq_dcb_tx_conf);
> +		if (conf->nb_queue_pools != ETH_16_POOLS &&
> +			   conf->nb_queue_pools != ETH_32_POOLS) {
> +			PMD_INIT_LOG(ERR, " VMDQ+DCB selected, "
> +					"number of TX qqueue pools must
Typo: qqueue->queue

> be %d or %d\n",
> +					ETH_16_POOLS, ETH_32_POOLS);
> +			return (-EINVAL);
> +		}
> +	} else if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
> +		const struct rte_eth_dcb_tx_conf *conf;
> +
> +		if (nb_tx_q != dev_info.max_tx_queues) {
> +			PMD_INIT_LOG(ERR, " DCB, number of queues must
> be %d\n",
> +					ETH_DCB_NUM_QUEUES);

The check is using dev_info.max_rx_queues, while ETH_DCB_NUM_QUEUES in log.

> +			return (-EINVAL);
> +		}
> +		conf = &(dev_conf->tx_adv_conf.dcb_tx_conf);
> +		if (conf->nb_tcs != ETH_4_TCS &&
> +			   conf->nb_tcs != ETH_8_TCS) {
> +			PMD_INIT_LOG(ERR, " DCB, number of TX TC must
> be %d or %d\n",
> +					ETH_4_TCS, ETH_8_TCS);
> +			return (-EINVAL);
> +		}
> +	}
> 
>  	/* set flag to update link status after init */
>  	intr->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; diff --git
> a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> index 1383194..e70a6e8 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.h
> @@ -348,11 +348,14 @@ void ixgbe_vlan_hw_strip_enable_all(struct
> rte_eth_dev *dev);
> 
>  void ixgbe_vlan_hw_strip_disable_all(struct rte_eth_dev *dev);
> 
> -void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev);
> +int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev);
> 
>  void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev);
> 
> +int ixgbe_pf_configure_mq_sriov(struct rte_eth_dev *dev);
> +
>  int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev);
> 
>  uint32_t ixgbe_convert_vm_rx_mask_to_val(uint16_t rx_mask, uint32_t
> orig_val);
> +
>  #endif /* _IXGBE_ETHDEV_H_ */
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c
> b/lib/librte_pmd_ixgbe/ixgbe_pf.c index 4103e97..a7b9333 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
> @@ -91,7 +91,7 @@ ixgbe_mb_intr_setup(struct rte_eth_dev *dev)
>  	return 0;
>  }
> 
> -void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
> +int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
>  {
>  	struct ixgbe_vf_info **vfinfo =
>  		IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data-
> >dev_private);
> @@ -101,39 +101,31 @@ void ixgbe_pf_host_init(struct rte_eth_dev
> *eth_dev)
>          IXGBE_DEV_PRIVATE_TO_UTA(eth_dev->data->dev_private);
>  	struct ixgbe_hw *hw =
>  		IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
> +	int retval;
>  	uint16_t vf_num;
> -	uint8_t nb_queue;
> 
>  	PMD_INIT_FUNC_TRACE();
> 
> -	RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
> -	if (0 == (vf_num = dev_num_vf(eth_dev)))
> -		return;
> +	/* Fill sriov structure using default configuration. */
> +	retval = ixgbe_pf_configure_mq_sriov(eth_dev);
> +	if (retval != 0) {
> +		if (retval < 0)
> +			PMD_INIT_LOG(ERR, " Setting up SRIOV with default
> device "
> +					"configuration should not fail. This is a
> BUG.");
> +		return 0;
> +	}
> 
> +	vf_num = dev_num_vf(eth_dev);
>  	*vfinfo = rte_zmalloc("vf_info", sizeof(struct ixgbe_vf_info) *
> vf_num, 0);
> -	if (*vfinfo == NULL)
> -		rte_panic("Cannot allocate memory for private VF data\n");
> +	if (*vfinfo == NULL) {
> +		PMD_INIT_LOG(ERR, "Cannot allocate memory for private VF
> data.");
> +		return (-ENOMEM);
> +	}
> 
>  	memset(mirror_info,0,sizeof(struct ixgbe_mirror_info));
>  	memset(uta_info,0,sizeof(struct ixgbe_uta_info));
>  	hw->mac.mc_filter_type = 0;
> 
> -	if (vf_num >= ETH_32_POOLS) {
> -		nb_queue = 2;
> -		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_64_POOLS;
> -	} else if (vf_num >= ETH_16_POOLS) {
> -		nb_queue = 4;
> -		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_32_POOLS;
> -	} else {
> -		nb_queue = 8;
> -		RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS;
> -	}
> -
> -	RTE_ETH_DEV_SRIOV(eth_dev).nb_rx_q_per_pool = nb_queue;
> -	RTE_ETH_DEV_SRIOV(eth_dev).nb_tx_q_per_pool = nb_queue;
> -	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
> -	RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx =
> (uint16_t)(vf_num * nb_queue);
> -
>  	ixgbe_vf_perm_addr_gen(eth_dev, vf_num);
> 
>  	/* init_mailbox_params */
> @@ -142,7 +134,169 @@ void ixgbe_pf_host_init(struct rte_eth_dev
> *eth_dev)
>  	/* set mb interrupt mask */
>  	ixgbe_mb_intr_setup(eth_dev);
> 
> -	return;
> +	return 0;
> +}
> +
> +
> +/*
> + * Function that make SRIOV configuration, based on device
> +configuration,
> + * number of requested queues and number of VF created.
> + * Function returns:
> + * 1 - SRIOV is not enabled (no VF created)
> + * 0 - proper SRIOV configuration found.
> + * -EINVAL - no suitable SRIOV configuration found.
> + */
> +int
> +ixgbe_pf_configure_mq_sriov(struct rte_eth_dev *dev) {

If this function is called by ixgbe_pf_host_init. It is in the initialization process, the
dev_conf in data is meaningless. The following check is still necessary? Maybe it's
better to use different functions in configure and init phase.

> +	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
> +	struct rte_eth_dev_sriov *sriov = &RTE_ETH_DEV_SRIOV(dev);
> +	uint16_t vf_num;
> +
> +	vf_num = dev_num_vf(dev);
> +	if (vf_num == 0) {
> +		memset(sriov, 0, sizeof(*sriov));
> +		return 1;
> +	}
> +
> +	/* Check multi-queue mode. */
> +	if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
> +		(dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB_RSS)
> ||
> +		(dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
> +		/* SRIOV only works in VMDq enable mode */
> +		PMD_INIT_LOG(ERR, " SRIOV active, "
> +				"invlaid VMDQ rx mode (%u) or tx (%u)
> mode.",
> +				dev_conf->rxmode.mq_mode, dev_conf-
> >txmode.mq_mode);
> +		return (-EINVAL);
> +	}
> +
> +	switch (dev_conf->rxmode.mq_mode) {
> +	case ETH_MQ_RX_VMDQ_DCB:
> +		if (vf_num <= ETH_16_POOLS)
> +			sriov->nb_rx_q_per_pool = 8;
> +		else if (vf_num <= ETH_32_POOLS)
> +			sriov->nb_rx_q_per_pool = 4;
> +		else {
> +			PMD_INIT_LOG(ERR,
> +				"DCB (SRIOV active) - VF count (%d) must be
> less or equal 32.",
> +				vf_num);
> +			return (-EINVAL);
> +		}
> +
> +		if (dev->data->nb_rx_queues < sriov->nb_rx_q_per_pool) {
> +			PMD_INIT_LOG(WARNING,
> +				"DCB (SRIOV active) rx queues (%d) count is
> not equal %d.",
> +				dev->data->nb_rx_queues,
> +				sriov->nb_rx_q_per_pool);
> +		}
> +		break;
> +	case ETH_MQ_RX_RSS:
> +		PMD_INIT_LOG(INFO, "RSS (SRIOV active), "
> +				"rx mq mode is changed from: mq_mode %u
> into VMDQ mq_mode %u.",
> +				dev_conf->rxmode.mq_mode, dev->data-
> >dev_conf.rxmode.mq_mode);
> +		dev->data->dev_conf.rxmode.mq_mode =
> ETH_MQ_RX_VMDQ_RSS;
> +		/* falltrought */
> +	case ETH_MQ_RX_VMDQ_RSS:
> +		if (vf_num >= ETH_64_POOLS) {
> +			/* FIXME: Is vf_num > 64 realy supported by
> hardware? */
> +			PMD_INIT_LOG(ERR, "RSS (SRIOV active), "
> +					"VFs num must be less or equal 64.");
> +				return (-EINVAL);
> +		} else if (vf_num >= ETH_32_POOLS) {
> +			if (dev->data->nb_rx_queues != 1 && dev->data-
> >nb_rx_queues != 2) {
> +				PMD_INIT_LOG(ERR, "RSS (SRIOV active, VF
> count >= 32),"
> +						"invalid rx queues count %d.
> It must be 1 or 2.",
> +						dev->data->nb_rx_queues);
> +				return (-EINVAL);
> +			}
> +
> +			sriov->nb_rx_q_per_pool = dev->data-
> >nb_rx_queues;
> +		} else {
> +			/* FIXME: is VT(16) + RSS realy supported? */
> +			if (dev->data->nb_rx_queues != 4) {
> +				PMD_INIT_LOG(ERR, "RSS (SRIOV active, VFs
> count < 32), "
> +						"invalid rx queues count %d.
> It must be 4.",
> +						dev->data->nb_rx_queues);
> +				return (-EINVAL);
> +			}
> +
> +			sriov->nb_rx_q_per_pool = 4;
> +		}
> +		break;
> +	default: /* ETH_MQ_RX_VMDQ_ONLY or ETH_MQ_RX_NONE */
> +		/* if nothing mq mode configure, use default scheme */
> +		if (dev->data->dev_conf.rxmode.mq_mode !=
> ETH_MQ_RX_VMDQ_ONLY) {
> +			PMD_INIT_LOG(INFO, "Rx mq mode changed
> from %u into VMDQ %u.",
> +					dev->data-
> >dev_conf.rxmode.mq_mode, ETH_MQ_RX_VMDQ_ONLY);
> +
> +			dev->data->dev_conf.rxmode.mq_mode =
> ETH_MQ_RX_VMDQ_ONLY;
> +		}
> +
> +		/* queue 0 of each pool is used. */
> +		sriov->nb_rx_q_per_pool = 1;
> +		break;
> +	}
> +
> +	switch (dev_conf->txmode.mq_mode) {
> +	case ETH_MQ_TX_VMDQ_DCB: /* DCB VMDQ in SRIOV mode*/
> +		if (vf_num <= ETH_16_POOLS)
> +			sriov->nb_tx_q_per_pool = 8;
> +		else if (vf_num <= ETH_32_POOLS)
> +			sriov->nb_tx_q_per_pool = 4;
> +		else if (vf_num <= ETH_64_POOLS)
> +			sriov->nb_tx_q_per_pool = 1;
> +		else {
> +			PMD_INIT_LOG(ERR, "DCB (SRIOV active), "
> +					"VF count (%d) must be less or equal
> 64.",
> +				vf_num);
> +			return (-EINVAL);
> +		}
> +		break;
> +	default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
> +		/* if nothing mq mode configure, use default scheme */
> +		if (dev->data->dev_conf.txmode.mq_mode !=
> ETH_MQ_TX_VMDQ_ONLY) {
> +			PMD_INIT_LOG(INFO, "Tx mq mode is changed
> from %u into VMDQ %u.",
> +					dev->data-
> >dev_conf.txmode.mq_mode, ETH_MQ_TX_VMDQ_ONLY);
> +
> +			dev->data->dev_conf.txmode.mq_mode =
> ETH_MQ_TX_VMDQ_ONLY;
> +		}
> +
> +		/* queue 0 of each pool is used. */
> +		sriov->nb_tx_q_per_pool = 1;
> +		break;
> +	}
> +
> +	sriov->def_vmdq_idx = vf_num;
> +
> +	/*
> +	 * Pools starts at 2xN, 4xN or 8xN
> +	 */
> +	if (vf_num >= ETH_32_POOLS) {
> +		/* This must be vf_num <= ETH_64_POOLS */
> +		sriov->active = ETH_64_POOLS;
> +		sriov->def_pool_q_idx = vf_num * 2;
> +	} else if (vf_num >= ETH_16_POOLS) {
> +		sriov->active = ETH_32_POOLS;
> +		sriov->def_pool_q_idx = vf_num * 4;
> +	} else {
> +		sriov->active = ETH_16_POOLS;
> +		sriov->def_pool_q_idx = vf_num * 8;
> +	}
> +
> +	/* Check if available queus count is not less than allocated.*/
> +	if (dev->data->nb_rx_queues > sriov->nb_rx_q_per_pool) {
> +		PMD_INIT_LOG(ERR, "SRIOV active, rx queue count must
> less or equal %d.",
> +						sriov->nb_rx_q_per_pool);
> +				return (-EINVAL);
> +	}
> +
> +	if (dev->data->nb_rx_queues > sriov->nb_tx_q_per_pool) {
> +		PMD_INIT_LOG(ERR, "SRIOV active, tx queue count must
> less or equal %d.",
> +				sriov->nb_tx_q_per_pool);
> +		return (-EINVAL);
> +	}
> +
> +	return 0;
>  }
> 
>  int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
> --
> 1.9.1

[dpdk-dev] [PATCH v4 5/7] pmd ixgbe: enable DCB in SRIOV

[Pawel Wodkowski]

Enable DCB in SRIOV mode for ixgbe driver.

To use DCB in VF PF must configure port as  DCB + VMDQ and VF must
configure port as DCB only. VF are not allowed to change DCB settings
that are common to all ports like number of TC.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 lib/librte_pmd_ixgbe/ixgbe_ethdev.c |  2 +-
 lib/librte_pmd_ixgbe/ixgbe_pf.c     | 19 ++++++++++++-------
 lib/librte_pmd_ixgbe/ixgbe_rxtx.c   | 18 +++++++++++-------
 3 files changed, 24 insertions(+), 15 deletions(-)

diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index 8e9da3b..7551bcc 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -1514,7 +1514,7 @@ ixgbe_dev_configure(struct rte_eth_dev *dev)
 		if (conf->nb_queue_pools != ETH_16_POOLS &&
 			   conf->nb_queue_pools != ETH_32_POOLS) {
 			PMD_INIT_LOG(ERR, " VMDQ+DCB selected, "
-					"number of TX qqueue pools must be %d or %d\n",
+					"number of TX queue pools must be %d or %d\n",
 					ETH_16_POOLS, ETH_32_POOLS);
 			return (-EINVAL);
 		}
diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c b/lib/librte_pmd_ixgbe/ixgbe_pf.c
index a7b9333..7c4afba 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
@@ -109,9 +109,12 @@ int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
 	/* Fill sriov structure using default configuration. */
 	retval = ixgbe_pf_configure_mq_sriov(eth_dev);
 	if (retval != 0) {
-		if (retval < 0)
-			PMD_INIT_LOG(ERR, " Setting up SRIOV with default device "
+		if (retval < 0) {
+			PMD_INIT_LOG(ERR, "Setting up SRIOV with default device "
 					"configuration should not fail. This is a BUG.");
+			return retval;
+		}
+
 		return 0;
 	}
 
@@ -652,7 +655,9 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
 {
 	struct ixgbe_vf_info *vfinfo =
 		*IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
-	uint32_t default_q = vf * RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool;
+	struct ixgbe_dcb_config *dcbinfo =
+		IXGBE_DEV_PRIVATE_TO_DCB_CFG(dev->data->dev_private);
+	uint32_t default_q = RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx;
 
 	/* Verify if the PF supports the mbox APIs version or not */
 	switch (vfinfo[vf].api_version) {
@@ -670,10 +675,10 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
 	/* Notify VF of default queue */
 	msgbuf[IXGBE_VF_DEF_QUEUE] = default_q;
 
-	/*
-	 * FIX ME if it needs fill msgbuf[IXGBE_VF_TRANS_VLAN]
-	 * for VLAN strip or VMDQ_DCB or VMDQ_DCB_RSS
-	 */
+	if (dcbinfo->num_tcs.pg_tcs)
+		msgbuf[IXGBE_VF_TRANS_VLAN] = dcbinfo->num_tcs.pg_tcs;
+	else
+		msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
 
 	return 0;
 }
diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
index e6766b3..2e3522c 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
@@ -3166,10 +3166,9 @@ void ixgbe_configure_dcb(struct rte_eth_dev *dev)
 
 	/* check support mq_mode for DCB */
 	if ((dev_conf->rxmode.mq_mode != ETH_MQ_RX_VMDQ_DCB) &&
-	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB))
-		return;
-
-	if (dev->data->nb_rx_queues != ETH_DCB_NUM_QUEUES)
+	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB) &&
+	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_VMDQ_DCB) &&
+	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_DCB))
 		return;
 
 	/** Configure DCB hardware **/
@@ -3442,8 +3441,13 @@ ixgbe_dev_mq_rx_configure(struct rte_eth_dev *dev)
 			ixgbe_config_vf_rss(dev);
 			break;
 
-		/* FIXME if support DCB/RSS together with VMDq & SRIOV */
+		/*
+		 * DCB will be configured during port startup.
+		 */
 		case ETH_MQ_RX_VMDQ_DCB:
+			break;
+
+		/* FIXME if support DCB+RSS together with VMDq & SRIOV */
 		case ETH_MQ_RX_VMDQ_DCB_RSS:
 			PMD_INIT_LOG(ERR,
 				"Could not support DCB with VMDq & SRIOV");
@@ -3488,8 +3492,8 @@ ixgbe_dev_mq_tx_configure(struct rte_eth_dev *dev)
 		switch (RTE_ETH_DEV_SRIOV(dev).active) {
 
 		/*
-		 * SRIOV active scheme
-		 * FIXME if support DCB together with VMDq & SRIOV
+		 * SRIOV active scheme.
+		 * Note: DCB will be configured during port startup.
 		 */
 		case ETH_64_POOLS:
 			mtqc = IXGBE_MTQC_VT_ENA | IXGBE_MTQC_64VF;
-- 
1.9.1

Re: [dpdk-dev] [PATCH v4 5/7] pmd ixgbe: enable DCB in SRIOV

[Ouyang, Changchun]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pawel Wodkowski
> Sent: Thursday, February 19, 2015 11:55 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v4 5/7] pmd ixgbe: enable DCB in SRIOV
> 
> Enable DCB in SRIOV mode for ixgbe driver.
> 
> To use DCB in VF PF must configure port as  DCB + VMDQ and VF must
> configure port as DCB only. VF are not allowed to change DCB settings that
> are common to all ports like number of TC.
> 
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> ---
>  lib/librte_pmd_ixgbe/ixgbe_ethdev.c |  2 +-
>  lib/librte_pmd_ixgbe/ixgbe_pf.c     | 19 ++++++++++++-------
>  lib/librte_pmd_ixgbe/ixgbe_rxtx.c   | 18 +++++++++++-------
>  3 files changed, 24 insertions(+), 15 deletions(-)
> 
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> index 8e9da3b..7551bcc 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
> @@ -1514,7 +1514,7 @@ ixgbe_dev_configure(struct rte_eth_dev *dev)
>  		if (conf->nb_queue_pools != ETH_16_POOLS &&
>  			   conf->nb_queue_pools != ETH_32_POOLS) {
>  			PMD_INIT_LOG(ERR, " VMDQ+DCB selected, "
> -					"number of TX qqueue pools must
> be %d or %d\n",
> +					"number of TX queue pools must
> be %d or %d\n",
>  					ETH_16_POOLS, ETH_32_POOLS);
>  			return (-EINVAL);
>  		}
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_pf.c
> b/lib/librte_pmd_ixgbe/ixgbe_pf.c index a7b9333..7c4afba 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_pf.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_pf.c
> @@ -109,9 +109,12 @@ int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
>  	/* Fill sriov structure using default configuration. */
>  	retval = ixgbe_pf_configure_mq_sriov(eth_dev);
>  	if (retval != 0) {
> -		if (retval < 0)
> -			PMD_INIT_LOG(ERR, " Setting up SRIOV with default
> device "
> +		if (retval < 0) {
> +			PMD_INIT_LOG(ERR, "Setting up SRIOV with default
> device "
>  					"configuration should not fail. This is a
> BUG.");
> +			return retval;
> +		}
> +
>  		return 0;
>  	}
> 
> @@ -652,7 +655,9 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev,
> uint32_t vf, uint32_t *msgbuf)  {
>  	struct ixgbe_vf_info *vfinfo =
>  		*IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data-
> >dev_private);
> -	uint32_t default_q = vf *
> RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool;
> +	struct ixgbe_dcb_config *dcbinfo =
> +		IXGBE_DEV_PRIVATE_TO_DCB_CFG(dev->data-
> >dev_private);
> +	uint32_t default_q = RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx;

Why need change the default_q here?

> 
>  	/* Verify if the PF supports the mbox APIs version or not */
>  	switch (vfinfo[vf].api_version) {
> @@ -670,10 +675,10 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev,
> uint32_t vf, uint32_t *msgbuf)
>  	/* Notify VF of default queue */
>  	msgbuf[IXGBE_VF_DEF_QUEUE] = default_q;
> 
> -	/*
> -	 * FIX ME if it needs fill msgbuf[IXGBE_VF_TRANS_VLAN]
> -	 * for VLAN strip or VMDQ_DCB or VMDQ_DCB_RSS
> -	 */
> +	if (dcbinfo->num_tcs.pg_tcs)
> +		msgbuf[IXGBE_VF_TRANS_VLAN] = dcbinfo-
> >num_tcs.pg_tcs;
> +	else
> +		msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
> 
>  	return 0;
>  }
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> index e6766b3..2e3522c 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> @@ -3166,10 +3166,9 @@ void ixgbe_configure_dcb(struct rte_eth_dev
> *dev)
> 
>  	/* check support mq_mode for DCB */
>  	if ((dev_conf->rxmode.mq_mode != ETH_MQ_RX_VMDQ_DCB) &&
> -	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB))
> -		return;
> -
> -	if (dev->data->nb_rx_queues != ETH_DCB_NUM_QUEUES)
> +	    (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB) &&
> +	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_VMDQ_DCB) &&
> +	    (dev_conf->txmode.mq_mode != ETH_MQ_TX_DCB))
>  		return;
> 
>  	/** Configure DCB hardware **/
> @@ -3442,8 +3441,13 @@ ixgbe_dev_mq_rx_configure(struct rte_eth_dev
> *dev)
>  			ixgbe_config_vf_rss(dev);
>  			break;
> 
> -		/* FIXME if support DCB/RSS together with VMDq & SRIOV */
> +		/*
> +		 * DCB will be configured during port startup.
> +		 */
>  		case ETH_MQ_RX_VMDQ_DCB:
> +			break;
> +
> +		/* FIXME if support DCB+RSS together with VMDq & SRIOV
> */
>  		case ETH_MQ_RX_VMDQ_DCB_RSS:
>  			PMD_INIT_LOG(ERR,
>  				"Could not support DCB with VMDq &
> SRIOV"); @@ -3488,8 +3492,8 @@ ixgbe_dev_mq_tx_configure(struct
> rte_eth_dev *dev)
>  		switch (RTE_ETH_DEV_SRIOV(dev).active) {
> 
>  		/*
> -		 * SRIOV active scheme
> -		 * FIXME if support DCB together with VMDq & SRIOV
> +		 * SRIOV active scheme.
> +		 * Note: DCB will be configured during port startup.
>  		 */
>  		case ETH_64_POOLS:
>  			mtqc = IXGBE_MTQC_VT_ENA | IXGBE_MTQC_64VF;
> --
> 1.9.1

Re: [dpdk-dev] [PATCH v4 5/7] pmd ixgbe: enable DCB in SRIOV

[Pawel Wodkowski]

On 2015-02-25 04:36, Ouyang, Changchun wrote:
>> @@ -652,7 +655,9 @@ ixgbe_get_vf_queues(struct rte_eth_dev *dev,
>> >uint32_t vf, uint32_t *msgbuf)  {
>> >  	struct ixgbe_vf_info *vfinfo =
>> >  		*IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data-
>>> > >dev_private);
>> >-	uint32_t default_q = vf *
>> >RTE_ETH_DEV_SRIOV(dev).nb_tx_q_per_pool;
>> >+	struct ixgbe_dcb_config *dcbinfo =
>> >+		IXGBE_DEV_PRIVATE_TO_DCB_CFG(dev->data-
>>> > >dev_private);
>> >+	uint32_t default_q = RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx;
> Why need change the default_q here?
>

Because this field holds default queue index.

-- 
Pawel

[dpdk-dev] [PATCH v4 6/7] tespmd: fix DCB in SRIOV mode support

[Pawel Wodkowski]

This patch incorporate fixes to support DCB in SRIOV mode for testpmd.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 app/test-pmd/cmdline.c |  4 ++--
 app/test-pmd/testpmd.c | 39 +++++++++++++++++++++++++++++----------
 app/test-pmd/testpmd.h | 10 ----------
 3 files changed, 31 insertions(+), 22 deletions(-)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 4753bb4..1e30ca6 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -1964,9 +1964,9 @@ cmd_config_dcb_parsed(void *parsed_result,
 
 	/* DCB in VT mode */
 	if (!strncmp(res->vt_en, "on",2))
-		dcb_conf.dcb_mode = DCB_VT_ENABLED;
+		dcb_conf.vt_en = 1;
 	else
-		dcb_conf.dcb_mode = DCB_ENABLED;
+		dcb_conf.vt_en = 0;
 
 	if (!strncmp(res->pfc_en, "on",2)) {
 		dcb_conf.pfc_en = 1;
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 3aebea6..bdbf237 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -1766,7 +1766,8 @@ const uint16_t vlan_tags[] = {
 };
 
 static  int
-get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
+get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf,
+	uint16_t sriov)
 {
         uint8_t i;
 
@@ -1774,7 +1775,7 @@ get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
  	 * Builds up the correct configuration for dcb+vt based on the vlan tags array
  	 * given above, and the number of traffic classes available for use.
  	 */
-	if (dcb_conf->dcb_mode == DCB_VT_ENABLED) {
+	if (dcb_conf->vt_en == 1) {
 		struct rte_eth_vmdq_dcb_conf vmdq_rx_conf;
 		struct rte_eth_vmdq_dcb_tx_conf vmdq_tx_conf;
 
@@ -1791,9 +1792,17 @@ get_eth_dcb_conf(struct rte_eth_conf *eth_conf, struct dcb_config *dcb_conf)
 			vmdq_rx_conf.pool_map[i].vlan_id = vlan_tags[ i ];
 			vmdq_rx_conf.pool_map[i].pools = 1 << (i % vmdq_rx_conf.nb_queue_pools);
 		}
-		for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
-			vmdq_rx_conf.dcb_queue[i] = i;
-			vmdq_tx_conf.dcb_queue[i] = i;
+
+		if (sriov == 0) {
+			for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
+				vmdq_rx_conf.dcb_queue[i] = i;
+				vmdq_tx_conf.dcb_queue[i] = i;
+			}
+		} else {
+			for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
+				vmdq_rx_conf.dcb_queue[i] = i % dcb_conf->num_tcs;
+				vmdq_tx_conf.dcb_queue[i] = i % dcb_conf->num_tcs;
+			}
 		}
 
 		/*set DCB mode of RX and TX of multiple queues*/
@@ -1851,22 +1860,32 @@ init_port_dcb_config(portid_t pid,struct dcb_config *dcb_conf)
 	uint16_t nb_vlan;
 	uint16_t i;
 
-	/* rxq and txq configuration in dcb mode */
-	nb_rxq = 128;
-	nb_txq = 128;
 	rx_free_thresh = 64;
 
+	rte_port = &ports[pid];
 	memset(&port_conf,0,sizeof(struct rte_eth_conf));
 	/* Enter DCB configuration status */
 	dcb_config = 1;
 
 	nb_vlan = sizeof( vlan_tags )/sizeof( vlan_tags[ 0 ]);
 	/*set configuration of DCB in vt mode and DCB in non-vt mode*/
-	retval = get_eth_dcb_conf(&port_conf, dcb_conf);
+	retval = get_eth_dcb_conf(&port_conf, dcb_conf, rte_port->dev_info.max_vfs);
+
+	/* rxq and txq configuration in dcb mode */
+	nb_rxq = rte_port->dev_info.max_rx_queues;
+	nb_txq = rte_port->dev_info.max_tx_queues;
+
+	if (rte_port->dev_info.max_vfs) {
+		if (port_conf.rxmode.mq_mode == ETH_MQ_RX_VMDQ_DCB)
+			nb_rxq /= port_conf.rx_adv_conf.vmdq_dcb_conf.nb_queue_pools;
+
+		if (port_conf.txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB)
+			nb_txq /= port_conf.tx_adv_conf.vmdq_dcb_tx_conf.nb_queue_pools;
+	}
+
 	if (retval < 0)
 		return retval;
 
-	rte_port = &ports[pid];
 	memcpy(&rte_port->dev_conf, &port_conf,sizeof(struct rte_eth_conf));
 
 	rxtx_port_config(rte_port);
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index 581130b..0ef3257 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -230,20 +230,10 @@ struct fwd_config {
 	portid_t   nb_fwd_ports;    /**< Nb. of ports involved. */
 };
 
-/**
- * DCB mode enable
- */
-enum dcb_mode_enable
-{
-	DCB_VT_ENABLED,
-	DCB_ENABLED
-};
-
 /*
  * DCB general config info
  */
 struct dcb_config {
-	enum dcb_mode_enable dcb_mode;
 	uint8_t vt_en;
 	enum rte_eth_nb_tcs num_tcs;
 	uint8_t pfc_en;
-- 
1.9.1

[dpdk-dev] [PATCH v4 7/7] pmd ixgbe: fix vlan setting in in PF

[Pawel Wodkowski]

The ixgbe_vlan_filter_set() should use hw->mac.ops.set_vfta() to set
VLAN filtering as this is generic function that handles both non-SRIOV
and SRIOV cases.

Bug was discovered issuing command in testpmd 'rx_vlan add VLAN PORT'
for PF. Requested VLAN was enabled but pool mask is not set. Only
command 'rx_vlan add VLAN port PORT vf MASK' can enable pointed VLAN id
for PF.

Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
---
 lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index 7551bcc..7aef0e8 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -1162,21 +1162,18 @@ ixgbe_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 		IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct ixgbe_vfta * shadow_vfta =
 		IXGBE_DEV_PRIVATE_TO_VFTA(dev->data->dev_private);
-	uint32_t vfta;
+	struct rte_eth_dev_sriov *sriov = &RTE_ETH_DEV_SRIOV(dev);
+	u32 vind = sriov->active ? sriov->def_vmdq_idx : 0;
+	s32 ret_val;
 	uint32_t vid_idx;
-	uint32_t vid_bit;
 
-	vid_idx = (uint32_t) ((vlan_id >> 5) & 0x7F);
-	vid_bit = (uint32_t) (1 << (vlan_id & 0x1F));
-	vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid_idx));
-	if (on)
-		vfta |= vid_bit;
-	else
-		vfta &= ~vid_bit;
-	IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid_idx), vfta);
+	ret_val = hw->mac.ops.set_vfta(hw, vlan_id, vind, on);
+	if (ret_val != IXGBE_SUCCESS)
+		return ret_val;
 
+	vid_idx = (uint32_t) ((vlan_id >> 5) & 0x7F);
 	/* update local VFTA copy */
-	shadow_vfta->vfta[vid_idx] = vfta;
+	shadow_vfta->vfta[vid_idx] = IXGBE_READ_REG(hw, IXGBE_VFTA(vid_idx));
 
 	return 0;
 }
-- 
1.9.1

Re: [dpdk-dev] [PATCH v4 0/7] Enable DCB in SRIOV mode for ixgbe driver

[Zhang, Helin]

Hi Pawel

Could you help to rebase it to the latest? Then several DPDK developers here may help you on code review.
I think your patches are really helpful on DCB decoupling in ethdev layer.

Regards,
Helin

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pawel Wodkowski
> Sent: Thursday, February 19, 2015 11:55 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v4 0/7] Enable DCB in SRIOV mode for ixgbe driver
> 
> This patchset enables DCB in SRIOV (ETH_MQ_RX_VMDQ_DCB and
> ETH_MQ_TX_VMDQ_DCB) for each VF and PF for ixgbe driver.
> 
> As a side effect this allow to use multiple queues for TX in VF (8 if there is
> 16 or less VFs or 4 if there is 32 or less VFs) when PFC is not enabled.
> 
> PATCH v4 changes:
>  - resend patch as previous was sent by mistake with different one.
> 
> PATCH v3 changes:
>  - Rework patch to fit ixgbe RSS in VT mode changes.
>  - move driver specific code from rte_ethdev.c to driver code.
>  - fix bug ixgbe driver VLAN filter enable in PF discoveded during testing.
> 
> PATCH v2 changes:
>  - Split patch for easer review.
>  - Remove "pmd: add api version negotiation for ixgbe driver" and "pmd: extend
>   mailbox api to report number of RX/TX queues" patches as those are already
>   already marged from other patch
> 
> Pawel Wodkowski (7):
>   ethdev: Allow zero rx/tx queues in SRIOV mode
>   pmd igb: fix VMDQ mode checking
>   pmd: igb/ixgbe split nb_q_per_pool to rx and tx nb_q_per_pool
>   move rte_eth_dev_check_mq_mode() logic to ixgbe driver
>   pmd ixgbe: enable DCB in SRIOV
>   tespmd: fix DCB in SRIOV mode support
>   pmd ixgbe: fix vlan setting in in PF
> 
>  app/test-pmd/cmdline.c              |   4 +-
>  app/test-pmd/testpmd.c              |  39 +++++--
>  app/test-pmd/testpmd.h              |  10 --
>  lib/librte_ether/rte_ethdev.c       | 212 ++--------------------------------
>  lib/librte_ether/rte_ethdev.h       |   3 +-
>  lib/librte_pmd_e1000/igb_ethdev.c   |  45 +++++++-
>  lib/librte_pmd_e1000/igb_pf.c       |   3 +-
>  lib/librte_pmd_e1000/igb_rxtx.c     |   2 +-
>  lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 126 ++++++++++++++++++---
>  lib/librte_pmd_ixgbe/ixgbe_ethdev.h |   5 +-
>  lib/librte_pmd_ixgbe/ixgbe_pf.c     | 220
> +++++++++++++++++++++++++++++++-----
>  lib/librte_pmd_ixgbe/ixgbe_rxtx.c   |  18 +--
>  12 files changed, 407 insertions(+), 280 deletions(-)
> 
> --
> 1.9.1