[dpdk-dev] [PATCH v2 1/2] net/i40e: fix link status change interrupt

[dpdk-dev] [PATCH v2 1/2] net/i40e: fix link status change interrupt

[Qiming Yang]

Previously, link status interrupt in i40e is achieved by checking
LINK_STAT_CHANGE_MASK in PFINT_ICR0 register which is provided only
for diagnostic use. Instead, drivers need to get the link status
change notification by using LSE (Link Status Event).

This patch enables LSE and calls LSC callback when the event is
received. This patch also removes the processing on
LINK_STAT_CHANGE_MASK.

Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 97 +++++++++---------------------------------
 1 file changed, 19 insertions(+), 78 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index d0aeb70..9c1f542 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -108,7 +108,6 @@
 		I40E_PFINT_ICR0_ENA_GRST_MASK | \
 		I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK | \
 		I40E_PFINT_ICR0_ENA_STORM_DETECT_MASK | \
-		I40E_PFINT_ICR0_ENA_LINK_STAT_CHANGE_MASK | \
 		I40E_PFINT_ICR0_ENA_HMC_ERR_MASK | \
 		I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK | \
 		I40E_PFINT_ICR0_ENA_VFLR_MASK | \
@@ -1768,6 +1767,16 @@ i40e_dev_start(struct rte_eth_dev *dev)
 		if (dev->data->dev_conf.intr_conf.lsc != 0)
 			PMD_INIT_LOG(INFO, "lsc won't enable because of"
 				     " no intr multiplex\n");
+	} else if (dev->data->dev_conf.intr_conf.lsc != 0) {
+		ret = i40e_aq_set_phy_int_mask(hw,
+					       ~(I40E_AQ_EVENT_LINK_UPDOWN |
+					       I40E_AQ_EVENT_MODULE_QUAL_FAIL |
+					       I40E_AQ_EVENT_MEDIA_NA), NULL);
+		if (ret != I40E_SUCCESS)
+			PMD_DRV_LOG(WARNING, "Fail to set phy mask");
+
+		/* Call get_link_info aq commond to enable LSE */
+		i40e_dev_link_update(dev, 0);
 	}
 
 	/* enable uio intr after callback register */
@@ -1984,6 +1993,7 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
 	struct rte_eth_link link, old;
 	int status;
 	unsigned rep_cnt = MAX_REPEAT_TIME;
+	bool enable_lse = dev->data->dev_conf.intr_conf.lsc ? true : false;
 
 	memset(&link, 0, sizeof(link));
 	memset(&old, 0, sizeof(old));
@@ -1992,7 +2002,8 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
 
 	do {
 		/* Get link status information from hardware */
-		status = i40e_aq_get_link_info(hw, false, &link_status, NULL);
+		status = i40e_aq_get_link_info(hw, enable_lse,
+						&link_status, NULL);
 		if (status != I40E_SUCCESS) {
 			link.link_speed = ETH_SPEED_NUM_100M;
 			link.link_duplex = ETH_LINK_FULL_DUPLEX;
@@ -5442,6 +5453,12 @@ i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 					info.msg_buf,
 					info.msg_len);
 			break;
+		case i40e_aqc_opc_get_link_status:
+			ret = i40e_dev_link_update(dev, 0);
+			if (!ret)
+				_rte_eth_dev_callback_process(dev,
+					RTE_ETH_EVENT_INTR_LSC);
+			break;
 		default:
 			PMD_DRV_LOG(ERR, "Request %u is not supported yet",
 				    opcode);
@@ -5451,57 +5468,6 @@ i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 	rte_free(info.msg_buf);
 }
 
-/*
- * Interrupt handler is registered as the alarm callback for handling LSC
- * interrupt in a definite of time, in order to wait the NIC into a stable
- * state. Currently it waits 1 sec in i40e for the link up interrupt, and
- * no need for link down interrupt.
- */
-static void
-i40e_dev_interrupt_delayed_handler(void *param)
-{
-	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
-	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	uint32_t icr0;
-
-	/* read interrupt causes again */
-	icr0 = I40E_READ_REG(hw, I40E_PFINT_ICR0);
-
-#ifdef RTE_LIBRTE_I40E_DEBUG_DRIVER
-	if (icr0 & I40E_PFINT_ICR0_ECC_ERR_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: unrecoverable ECC error\n");
-	if (icr0 & I40E_PFINT_ICR0_MAL_DETECT_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: malicious programming detected\n");
-	if (icr0 & I40E_PFINT_ICR0_GRST_MASK)
-		PMD_DRV_LOG(INFO, "ICR0: global reset requested\n");
-	if (icr0 & I40E_PFINT_ICR0_PCI_EXCEPTION_MASK)
-		PMD_DRV_LOG(INFO, "ICR0: PCI exception\n activated\n");
-	if (icr0 & I40E_PFINT_ICR0_STORM_DETECT_MASK)
-		PMD_DRV_LOG(INFO, "ICR0: a change in the storm control "
-								"state\n");
-	if (icr0 & I40E_PFINT_ICR0_HMC_ERR_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: HMC error\n");
-	if (icr0 & I40E_PFINT_ICR0_PE_CRITERR_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: protocol engine critical error\n");
-#endif /* RTE_LIBRTE_I40E_DEBUG_DRIVER */
-
-	if (icr0 & I40E_PFINT_ICR0_VFLR_MASK) {
-		PMD_DRV_LOG(INFO, "INT:VF reset detected\n");
-		i40e_dev_handle_vfr_event(dev);
-	}
-	if (icr0 & I40E_PFINT_ICR0_ADMINQ_MASK) {
-		PMD_DRV_LOG(INFO, "INT:ADMINQ event\n");
-		i40e_dev_handle_aq_msg(dev);
-	}
-
-	/* handle the link up interrupt in an alarm callback */
-	i40e_dev_link_update(dev, 0);
-	_rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC);
-
-	i40e_pf_enable_irq0(hw);
-	rte_intr_enable(&(dev->pci_dev->intr_handle));
-}
-
 /**
  * Interrupt handler triggered by NIC  for handling
  * specific interrupt.
@@ -5558,31 +5524,6 @@ i40e_dev_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
 		PMD_DRV_LOG(INFO, "ICR0: adminq event");
 		i40e_dev_handle_aq_msg(dev);
 	}
-
-	/* Link Status Change interrupt */
-	if (icr0 & I40E_PFINT_ICR0_LINK_STAT_CHANGE_MASK) {
-#define I40E_US_PER_SECOND 1000000
-		struct rte_eth_link link;
-
-		PMD_DRV_LOG(INFO, "ICR0: link status changed\n");
-		memset(&link, 0, sizeof(link));
-		rte_i40e_dev_atomic_read_link_status(dev, &link);
-		i40e_dev_link_update(dev, 0);
-
-		/*
-		 * For link up interrupt, it needs to wait 1 second to let the
-		 * hardware be a stable state. Otherwise several consecutive
-		 * interrupts can be observed.
-		 * For link down interrupt, no need to wait.
-		 */
-		if (!link.link_status && rte_eal_alarm_set(I40E_US_PER_SECOND,
-			i40e_dev_interrupt_delayed_handler, (void *)dev) >= 0)
-			return;
-		else
-			_rte_eth_dev_callback_process(dev,
-				RTE_ETH_EVENT_INTR_LSC);
-	}
-
 done:
 	/* Enable interrupt */
 	i40e_pf_enable_irq0(hw);
-- 
2.5.5

[dpdk-dev] [PATCH v2 2/2] net/i40e: fix VF bonded device link down

[Qiming Yang]

If VF device is used as slave of a bond device, it will be polled
periodically through alarm. Interrupt is involved here. And then
VF will send I40E_VIRTCHNL_OP_GET_LINK_STAT message to
PF to query the status. The response is handled by interrupt
callback. Interrupt is involved here again. That's why bond
device cannot bring up.

This patch removes I40E_VIRTCHNL_OP_GET_LINK_STAT
message. Link status in VF driver will be updated when PF driver
notify it, and VF stores this link status locally. VF driver just
returns the local status when being required.

Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
---
 drivers/net/i40e/i40e_ethdev.c    | 22 ++++++++++-
 drivers/net/i40e/i40e_ethdev.h    |  4 +-
 drivers/net/i40e/i40e_ethdev_vf.c | 81 +++++++++++++--------------------------
 drivers/net/i40e/i40e_pf.c        | 33 ++++++++--------
 drivers/net/i40e/i40e_pf.h        |  3 +-
 5 files changed, 67 insertions(+), 76 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 9c1f542..13060db 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -5418,6 +5418,24 @@ i40e_dev_handle_vfr_event(struct rte_eth_dev *dev)
 }
 
 static void
+i40e_notify_all_vfs_link_status(struct rte_eth_dev *dev)
+{
+	struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+	struct i40e_virtchnl_pf_event event;
+	int i;
+
+	event.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
+	event.event_data.link_event.link_status =
+		dev->data->dev_link.link_status;
+	event.event_data.link_event.link_speed =
+		dev->data->dev_link.link_speed;
+
+	for (i = 0; i < pf->vf_num; i++)
+		i40e_pf_host_send_msg_to_vf(&pf->vfs[i], I40E_VIRTCHNL_OP_EVENT,
+				I40E_SUCCESS, (uint8_t *)&event, sizeof(event));
+}
+
+static void
 i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 {
 	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -5455,9 +5473,11 @@ i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 			break;
 		case i40e_aqc_opc_get_link_status:
 			ret = i40e_dev_link_update(dev, 0);
-			if (!ret)
+			if (!ret) {
+				i40e_notify_all_vfs_link_status(dev);
 				_rte_eth_dev_callback_process(dev,
 					RTE_ETH_EVENT_INTR_LSC);
+			}
 			break;
 		default:
 			PMD_DRV_LOG(ERR, "Request %u is not supported yet",
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 92c8fad..61dfa93 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -599,7 +599,9 @@ int i40e_hash_filter_inset_select(struct i40e_hw *hw,
 			     struct rte_eth_input_set_conf *conf);
 int i40e_fdir_filter_inset_select(struct i40e_pf *pf,
 			     struct rte_eth_input_set_conf *conf);
-
+int i40e_pf_host_send_msg_to_vf(struct i40e_pf_vf *vf, uint32_t opcode,
+				uint32_t retval, uint8_t *msg,
+				uint16_t msglen);
 void i40e_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
 	struct rte_eth_rxq_info *qinfo);
 void i40e_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index a616ae0..ba63a7f 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -126,8 +126,6 @@ static void i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev);
 static void i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev);
 static void i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev);
 static void i40evf_dev_allmulticast_disable(struct rte_eth_dev *dev);
-static int i40evf_get_link_status(struct rte_eth_dev *dev,
-				  struct rte_eth_link *link);
 static int i40evf_init_vlan(struct rte_eth_dev *dev);
 static int i40evf_dev_rx_queue_start(struct rte_eth_dev *dev,
 				     uint16_t rx_queue_id);
@@ -1084,31 +1082,6 @@ i40evf_del_vlan(struct rte_eth_dev *dev, uint16_t vlanid)
 	return err;
 }
 
-static int
-i40evf_get_link_status(struct rte_eth_dev *dev, struct rte_eth_link *link)
-{
-	struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
-	int err;
-	struct vf_cmd_info args;
-	struct rte_eth_link *new_link;
-
-	args.ops = (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_GET_LINK_STAT;
-	args.in_args = NULL;
-	args.in_args_size = 0;
-	args.out_buffer = vf->aq_resp;
-	args.out_size = I40E_AQ_BUF_SZ;
-	err = i40evf_execute_vf_cmd(dev, &args);
-	if (err) {
-		PMD_DRV_LOG(ERR, "fail to execute command OP_GET_LINK_STAT");
-		return err;
-	}
-
-	new_link = (struct rte_eth_link *)args.out_buffer;
-	(void)rte_memcpy(link, new_link, sizeof(*link));
-
-	return 0;
-}
-
 static const struct rte_pci_id pci_id_i40evf_map[] = {
 	{ RTE_PCI_DEVICE(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_VF) },
 	{ RTE_PCI_DEVICE(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_VF_HV) },
@@ -2166,35 +2139,33 @@ i40evf_dev_link_update(struct rte_eth_dev *dev,
 	 * DPDK pf host provide interfacet to acquire link status
 	 * while Linux driver does not
 	 */
-	if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
-		i40evf_get_link_status(dev, &new_link);
-	else {
-		/* Linux driver PF host */
-		switch (vf->link_speed) {
-		case I40E_LINK_SPEED_100MB:
-			new_link.link_speed = ETH_SPEED_NUM_100M;
-			break;
-		case I40E_LINK_SPEED_1GB:
-			new_link.link_speed = ETH_SPEED_NUM_1G;
-			break;
-		case I40E_LINK_SPEED_10GB:
-			new_link.link_speed = ETH_SPEED_NUM_10G;
-			break;
-		case I40E_LINK_SPEED_20GB:
-			new_link.link_speed = ETH_SPEED_NUM_20G;
-			break;
-		case I40E_LINK_SPEED_40GB:
-			new_link.link_speed = ETH_SPEED_NUM_40G;
-			break;
-		default:
-			new_link.link_speed = ETH_SPEED_NUM_100M;
-			break;
-		}
-		/* full duplex only */
-		new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
-		new_link.link_status = vf->link_up ? ETH_LINK_UP :
-						     ETH_LINK_DOWN;
+
+	/* Linux driver PF host */
+	switch (vf->link_speed) {
+	case I40E_LINK_SPEED_100MB:
+		new_link.link_speed = ETH_SPEED_NUM_100M;
+		break;
+	case I40E_LINK_SPEED_1GB:
+		new_link.link_speed = ETH_SPEED_NUM_1G;
+		break;
+	case I40E_LINK_SPEED_10GB:
+		new_link.link_speed = ETH_SPEED_NUM_10G;
+		break;
+	case I40E_LINK_SPEED_20GB:
+		new_link.link_speed = ETH_SPEED_NUM_20G;
+		break;
+	case I40E_LINK_SPEED_40GB:
+		new_link.link_speed = ETH_SPEED_NUM_40G;
+		break;
+	default:
+		new_link.link_speed = ETH_SPEED_NUM_100M;
+		break;
 	}
+	/* full duplex only */
+	new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	new_link.link_status = vf->link_up ? ETH_LINK_UP :
+					     ETH_LINK_DOWN;
+
 	i40evf_dev_atomic_write_link_status(dev, &new_link);
 
 	return 0;
diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c
index d5b2d45..350f6a0 100644
--- a/drivers/net/i40e/i40e_pf.c
+++ b/drivers/net/i40e/i40e_pf.c
@@ -250,7 +250,7 @@ i40e_pf_host_vf_reset(struct i40e_pf_vf *vf, bool do_hw_reset)
 	return ret;
 }
 
-static int
+int
 i40e_pf_host_send_msg_to_vf(struct i40e_pf_vf *vf,
 			    uint32_t opcode,
 			    uint32_t retval,
@@ -847,18 +847,6 @@ i40e_pf_host_process_cmd_get_stats(struct i40e_pf_vf *vf)
 	return I40E_SUCCESS;
 }
 
-static void
-i40e_pf_host_process_cmd_get_link_status(struct i40e_pf_vf *vf)
-{
-	struct rte_eth_dev *dev = I40E_VSI_TO_ETH_DEV(vf->pf->main_vsi);
-
-	/* Update link status first to acquire latest link change */
-	i40e_dev_link_update(dev, 1);
-	i40e_pf_host_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_LINK_STAT,
-		I40E_SUCCESS, (uint8_t *)&dev->data->dev_link,
-				sizeof(struct rte_eth_link));
-}
-
 static int
 i40e_pf_host_process_cmd_cfg_vlan_offload(
 					struct i40e_pf_vf *vf,
@@ -909,6 +897,20 @@ send_msg:
 	return ret;
 }
 
+static void
+i40e_notify_vf_link_status(struct rte_eth_dev *dev, struct i40e_pf_vf *vf)
+{
+	struct i40e_virtchnl_pf_event event;
+
+	event.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
+	event.event_data.link_event.link_status =
+			dev->data->dev_link.link_status;
+	event.event_data.link_event.link_speed =
+			dev->data->dev_link.link_speed;
+	i40e_pf_host_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_EVENT,
+			I40E_SUCCESS, (uint8_t *)&event, sizeof(event));
+}
+
 void
 i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 			   uint16_t abs_vf_id, uint32_t opcode,
@@ -964,6 +966,7 @@ i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 	case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
 		PMD_DRV_LOG(INFO, "OP_ENABLE_QUEUES received");
 		i40e_pf_host_process_cmd_enable_queues(vf, msg, msglen);
+		i40e_notify_vf_link_status(dev, vf);
 		break;
 	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
 		PMD_DRV_LOG(INFO, "OP_DISABLE_QUEUE received");
@@ -993,10 +996,6 @@ i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 		PMD_DRV_LOG(INFO, "OP_GET_STATS received");
 		i40e_pf_host_process_cmd_get_stats(vf);
 		break;
-	case I40E_VIRTCHNL_OP_GET_LINK_STAT:
-		PMD_DRV_LOG(INFO, "OP_GET_LINK_STAT received");
-		i40e_pf_host_process_cmd_get_link_status(vf);
-		break;
 	case I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD:
 		PMD_DRV_LOG(INFO, "OP_CFG_VLAN_OFFLOAD received");
 		i40e_pf_host_process_cmd_cfg_vlan_offload(vf, msg, msglen);
diff --git a/drivers/net/i40e/i40e_pf.h b/drivers/net/i40e/i40e_pf.h
index 9c01829..cddc45c 100644
--- a/drivers/net/i40e/i40e_pf.h
+++ b/drivers/net/i40e/i40e_pf.h
@@ -59,9 +59,8 @@ enum i40e_virtchnl_ops_dpdk {
 	 * Keep some gap between Linux PF commands and
 	 * DPDK PF extended commands.
 	 */
-	I40E_VIRTCHNL_OP_GET_LINK_STAT = I40E_VIRTCHNL_OP_VERSION +
+	I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD = I40E_VIRTCHNL_OP_VERSION +
 						I40E_DPDK_OFFSET,
-	I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD,
 	I40E_VIRTCHNL_OP_CFG_VLAN_PVID,
 	I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EXT,
 };
-- 
2.5.5

Re: [dpdk-dev] [PATCH v2 1/2] net/i40e: fix link status change interrupt

[Wu, Jingjing]

> -----Original Message-----
> From: Yang, Qiming
> Sent: Tuesday, October 25, 2016 12:19 PM
> To: dev@dpdk.org
> Cc: Wu, Jingjing <jingjing.wu@intel.com>; Zhang, Helin <helin.zhang@intel.com>; Richardson,
> Bruce <bruce.richardson@intel.com>; Yang, Qiming <qiming.yang@intel.com>
> Subject: [PATCH v2 1/2] net/i40e: fix link status change interrupt
> 
> Previously, link status interrupt in i40e is achieved by checking
> LINK_STAT_CHANGE_MASK in PFINT_ICR0 register which is provided only
> for diagnostic use. Instead, drivers need to get the link status
> change notification by using LSE (Link Status Event).
> 
> This patch enables LSE and calls LSC callback when the event is
> received. This patch also removes the processing on
> LINK_STAT_CHANGE_MASK.
> 
> Fixes: 4861cde46116 ("i40e: new poll mode driver")
> 
> Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>

Re: [dpdk-dev] [PATCH v2 2/2] net/i40e: fix VF bonded device link down

[Wu, Jingjing]

> -----Original Message-----
> From: Yang, Qiming
> Sent: Tuesday, October 25, 2016 12:19 PM
> To: dev@dpdk.org
> Cc: Wu, Jingjing <jingjing.wu@intel.com>; Zhang, Helin <helin.zhang@intel.com>; Richardson,
> Bruce <bruce.richardson@intel.com>; Yang, Qiming <qiming.yang@intel.com>
> Subject: [PATCH v2 2/2] net/i40e: fix VF bonded device link down
> 
> If VF device is used as slave of a bond device, it will be polled
> periodically through alarm. Interrupt is involved here. And then
> VF will send I40E_VIRTCHNL_OP_GET_LINK_STAT message to
> PF to query the status. The response is handled by interrupt
> callback. Interrupt is involved here again. That's why bond
> device cannot bring up.
> 
> This patch removes I40E_VIRTCHNL_OP_GET_LINK_STAT
> message. Link status in VF driver will be updated when PF driver
> notify it, and VF stores this link status locally. VF driver just
> returns the local status when being required.
> 
> Fixes: 4861cde46116 ("i40e: new poll mode driver")
> 
> Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>

Thanks.
BTW, next time, don't forget to note your changes comparing the previous version.
It will make reviewers' life easy. :)


/Jingjing

Re: [dpdk-dev] [PATCH v2 1/2] net/i40e: fix link status change interrupt

[Bruce Richardson]

On Tue, Oct 25, 2016 at 12:19:05PM +0800, Qiming Yang wrote:
> Previously, link status interrupt in i40e is achieved by checking
> LINK_STAT_CHANGE_MASK in PFINT_ICR0 register which is provided only
> for diagnostic use. Instead, drivers need to get the link status
> change notification by using LSE (Link Status Event).
> 
> This patch enables LSE and calls LSC callback when the event is
> received. This patch also removes the processing on
> LINK_STAT_CHANGE_MASK.
> 
> Fixes: 4861cde46116 ("i40e: new poll mode driver")
> 
> Signed-off-by: Qiming Yang <qiming.yang@intel.com>
> ---
Thanks for the V2. Unfortunately, this conflicts with some other changes
to the driver, making the patch not apply cleanly, and a manual apply I
tried did not compile successfully. Can you please do a V3 rebased on
top of dpdk-next-net/rel_16_11.

Thanks,
/Bruce

[dpdk-dev] [PATCH v3 1/2] net/i40e: fix link status change interrupt

[Qiming Yang]

Previously, link status interrupt in i40e is achieved by checking
LINK_STAT_CHANGE_MASK in PFINT_ICR0 register which is provided only
for diagnostic use. Instead, drivers need to get the link status
change notification by using LSE (Link Status Event).

This patch enables LSE and calls LSC callback when the event is
received. This patch also removes the processing on
LINK_STAT_CHANGE_MASK.

Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
---
Change in v3:
* resolved the conflict with other changes, rework based
on version: 16.11-rc2
---
---
 drivers/net/i40e/i40e_ethdev.c | 96 +++++++++---------------------------------
 1 file changed, 19 insertions(+), 77 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index bb81b15..078c581 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -108,7 +108,6 @@
 		I40E_PFINT_ICR0_ENA_GRST_MASK | \
 		I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK | \
 		I40E_PFINT_ICR0_ENA_STORM_DETECT_MASK | \
-		I40E_PFINT_ICR0_ENA_LINK_STAT_CHANGE_MASK | \
 		I40E_PFINT_ICR0_ENA_HMC_ERR_MASK | \
 		I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK | \
 		I40E_PFINT_ICR0_ENA_VFLR_MASK | \
@@ -1777,6 +1776,16 @@ i40e_dev_start(struct rte_eth_dev *dev)
 		if (dev->data->dev_conf.intr_conf.lsc != 0)
 			PMD_INIT_LOG(INFO, "lsc won't enable because of"
 				     " no intr multiplex\n");
+	} else if (dev->data->dev_conf.intr_conf.lsc != 0) {
+		ret = i40e_aq_set_phy_int_mask(hw,
+					       ~(I40E_AQ_EVENT_LINK_UPDOWN |
+					       I40E_AQ_EVENT_MODULE_QUAL_FAIL |
+					       I40E_AQ_EVENT_MEDIA_NA), NULL);
+		if (ret != I40E_SUCCESS)
+			PMD_DRV_LOG(WARNING, "Fail to set phy mask");
+
+		/* Call get_link_info aq commond to enable LSE */
+		i40e_dev_link_update(dev, 0);
 	}
 
 	/* enable uio intr after callback register */
@@ -1995,6 +2004,7 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
 	struct rte_eth_link link, old;
 	int status;
 	unsigned rep_cnt = MAX_REPEAT_TIME;
+	bool enable_lse = dev->data->dev_conf.intr_conf.lsc ? true : false;
 
 	memset(&link, 0, sizeof(link));
 	memset(&old, 0, sizeof(old));
@@ -2003,7 +2013,8 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
 
 	do {
 		/* Get link status information from hardware */
-		status = i40e_aq_get_link_info(hw, false, &link_status, NULL);
+		status = i40e_aq_get_link_info(hw, enable_lse,
+						&link_status, NULL);
 		if (status != I40E_SUCCESS) {
 			link.link_speed = ETH_SPEED_NUM_100M;
 			link.link_duplex = ETH_LINK_FULL_DUPLEX;
@@ -5465,6 +5476,12 @@ i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 					info.msg_buf,
 					info.msg_len);
 			break;
+		case i40e_aqc_opc_get_link_status:
+			ret = i40e_dev_link_update(dev, 0);
+			if (!ret)
+				_rte_eth_dev_callback_process(dev,
+					RTE_ETH_EVENT_INTR_LSC, NULL);
+			break;
 		default:
 			PMD_DRV_LOG(ERR, "Request %u is not supported yet",
 				    opcode);
@@ -5474,57 +5491,6 @@ i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 	rte_free(info.msg_buf);
 }
 
-/*
- * Interrupt handler is registered as the alarm callback for handling LSC
- * interrupt in a definite of time, in order to wait the NIC into a stable
- * state. Currently it waits 1 sec in i40e for the link up interrupt, and
- * no need for link down interrupt.
- */
-static void
-i40e_dev_interrupt_delayed_handler(void *param)
-{
-	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
-	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	uint32_t icr0;
-
-	/* read interrupt causes again */
-	icr0 = I40E_READ_REG(hw, I40E_PFINT_ICR0);
-
-#ifdef RTE_LIBRTE_I40E_DEBUG_DRIVER
-	if (icr0 & I40E_PFINT_ICR0_ECC_ERR_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: unrecoverable ECC error\n");
-	if (icr0 & I40E_PFINT_ICR0_MAL_DETECT_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: malicious programming detected\n");
-	if (icr0 & I40E_PFINT_ICR0_GRST_MASK)
-		PMD_DRV_LOG(INFO, "ICR0: global reset requested\n");
-	if (icr0 & I40E_PFINT_ICR0_PCI_EXCEPTION_MASK)
-		PMD_DRV_LOG(INFO, "ICR0: PCI exception\n activated\n");
-	if (icr0 & I40E_PFINT_ICR0_STORM_DETECT_MASK)
-		PMD_DRV_LOG(INFO, "ICR0: a change in the storm control "
-								"state\n");
-	if (icr0 & I40E_PFINT_ICR0_HMC_ERR_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: HMC error\n");
-	if (icr0 & I40E_PFINT_ICR0_PE_CRITERR_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: protocol engine critical error\n");
-#endif /* RTE_LIBRTE_I40E_DEBUG_DRIVER */
-
-	if (icr0 & I40E_PFINT_ICR0_VFLR_MASK) {
-		PMD_DRV_LOG(INFO, "INT:VF reset detected\n");
-		i40e_dev_handle_vfr_event(dev);
-	}
-	if (icr0 & I40E_PFINT_ICR0_ADMINQ_MASK) {
-		PMD_DRV_LOG(INFO, "INT:ADMINQ event\n");
-		i40e_dev_handle_aq_msg(dev);
-	}
-
-	/* handle the link up interrupt in an alarm callback */
-	i40e_dev_link_update(dev, 0);
-	_rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
-
-	i40e_pf_enable_irq0(hw);
-	rte_intr_enable(&(dev->pci_dev->intr_handle));
-}
-
 /**
  * Interrupt handler triggered by NIC  for handling
  * specific interrupt.
@@ -5582,30 +5548,6 @@ i40e_dev_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
 		i40e_dev_handle_aq_msg(dev);
 	}
 
-	/* Link Status Change interrupt */
-	if (icr0 & I40E_PFINT_ICR0_LINK_STAT_CHANGE_MASK) {
-#define I40E_US_PER_SECOND 1000000
-		struct rte_eth_link link;
-
-		PMD_DRV_LOG(INFO, "ICR0: link status changed\n");
-		memset(&link, 0, sizeof(link));
-		rte_i40e_dev_atomic_read_link_status(dev, &link);
-		i40e_dev_link_update(dev, 0);
-
-		/*
-		 * For link up interrupt, it needs to wait 1 second to let the
-		 * hardware be a stable state. Otherwise several consecutive
-		 * interrupts can be observed.
-		 * For link down interrupt, no need to wait.
-		 */
-		if (!link.link_status && rte_eal_alarm_set(I40E_US_PER_SECOND,
-			i40e_dev_interrupt_delayed_handler, (void *)dev) >= 0)
-			return;
-		else
-			_rte_eth_dev_callback_process(dev,
-				RTE_ETH_EVENT_INTR_LSC, NULL);
-	}
-
 done:
 	/* Enable interrupt */
 	i40e_pf_enable_irq0(hw);
-- 
2.5.5

[dpdk-dev] [PATCH v3 2/2] net/i40e: fix VF bonded device link down

[Qiming Yang]

If VF device is used as slave of a bond device, it will be polled
periodically through alarm. Interrupt is involved here. And then
VF will send I40E_VIRTCHNL_OP_GET_LINK_STAT message to
PF to query the status. The response is handled by interrupt
callback. Interrupt is involved here again. That's why bond
device cannot bring up.

This patch removes I40E_VIRTCHNL_OP_GET_LINK_STAT
message. Link status in VF driver will be updated when PF driver
notify it, and VF stores this link status locally. VF driver just
returns the local status when being required.

Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
---
Change in v3:
* resolved the conflict with other changes, rework based
on version: 16.11-rc2
---
---
 drivers/net/i40e/i40e_ethdev.c    | 22 ++++++++++-
 drivers/net/i40e/i40e_ethdev.h    |  4 +-
 drivers/net/i40e/i40e_ethdev_vf.c | 81 +++++++++++++--------------------------
 drivers/net/i40e/i40e_pf.c        | 33 ++++++++--------
 drivers/net/i40e/i40e_pf.h        |  3 +-
 5 files changed, 67 insertions(+), 76 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 078c581..99183b1 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -5441,6 +5441,24 @@ i40e_dev_handle_vfr_event(struct rte_eth_dev *dev)
 }
 
 static void
+i40e_notify_all_vfs_link_status(struct rte_eth_dev *dev)
+{
+	struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+	struct i40e_virtchnl_pf_event event;
+	int i;
+
+	event.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
+	event.event_data.link_event.link_status =
+		dev->data->dev_link.link_status;
+	event.event_data.link_event.link_speed =
+		dev->data->dev_link.link_speed;
+
+	for (i = 0; i < pf->vf_num; i++)
+		i40e_pf_host_send_msg_to_vf(&pf->vfs[i], I40E_VIRTCHNL_OP_EVENT,
+				I40E_SUCCESS, (uint8_t *)&event, sizeof(event));
+}
+
+static void
 i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 {
 	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -5478,9 +5496,11 @@ i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 			break;
 		case i40e_aqc_opc_get_link_status:
 			ret = i40e_dev_link_update(dev, 0);
-			if (!ret)
+			if (!ret) {
+				i40e_notify_all_vfs_link_status(dev);
 				_rte_eth_dev_callback_process(dev,
 					RTE_ETH_EVENT_INTR_LSC, NULL);
+			}
 			break;
 		default:
 			PMD_DRV_LOG(ERR, "Request %u is not supported yet",
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 24b8580..298cef4 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -609,7 +609,9 @@ int i40e_hash_filter_inset_select(struct i40e_hw *hw,
 			     struct rte_eth_input_set_conf *conf);
 int i40e_fdir_filter_inset_select(struct i40e_pf *pf,
 			     struct rte_eth_input_set_conf *conf);
-
+int i40e_pf_host_send_msg_to_vf(struct i40e_pf_vf *vf, uint32_t opcode,
+				uint32_t retval, uint8_t *msg,
+				uint16_t msglen);
 void i40e_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
 	struct rte_eth_rxq_info *qinfo);
 void i40e_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 4b835cb..aa306d6 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -126,8 +126,6 @@ static void i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev);
 static void i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev);
 static void i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev);
 static void i40evf_dev_allmulticast_disable(struct rte_eth_dev *dev);
-static int i40evf_get_link_status(struct rte_eth_dev *dev,
-				  struct rte_eth_link *link);
 static int i40evf_init_vlan(struct rte_eth_dev *dev);
 static int i40evf_dev_rx_queue_start(struct rte_eth_dev *dev,
 				     uint16_t rx_queue_id);
@@ -1084,31 +1082,6 @@ i40evf_del_vlan(struct rte_eth_dev *dev, uint16_t vlanid)
 	return err;
 }
 
-static int
-i40evf_get_link_status(struct rte_eth_dev *dev, struct rte_eth_link *link)
-{
-	struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
-	int err;
-	struct vf_cmd_info args;
-	struct rte_eth_link *new_link;
-
-	args.ops = (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_GET_LINK_STAT;
-	args.in_args = NULL;
-	args.in_args_size = 0;
-	args.out_buffer = vf->aq_resp;
-	args.out_size = I40E_AQ_BUF_SZ;
-	err = i40evf_execute_vf_cmd(dev, &args);
-	if (err) {
-		PMD_DRV_LOG(ERR, "fail to execute command OP_GET_LINK_STAT");
-		return err;
-	}
-
-	new_link = (struct rte_eth_link *)args.out_buffer;
-	(void)rte_memcpy(link, new_link, sizeof(*link));
-
-	return 0;
-}
-
 static const struct rte_pci_id pci_id_i40evf_map[] = {
 	{ RTE_PCI_DEVICE(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_VF) },
 	{ RTE_PCI_DEVICE(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_VF_HV) },
@@ -2146,35 +2119,33 @@ i40evf_dev_link_update(struct rte_eth_dev *dev,
 	 * DPDK pf host provide interfacet to acquire link status
 	 * while Linux driver does not
 	 */
-	if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
-		i40evf_get_link_status(dev, &new_link);
-	else {
-		/* Linux driver PF host */
-		switch (vf->link_speed) {
-		case I40E_LINK_SPEED_100MB:
-			new_link.link_speed = ETH_SPEED_NUM_100M;
-			break;
-		case I40E_LINK_SPEED_1GB:
-			new_link.link_speed = ETH_SPEED_NUM_1G;
-			break;
-		case I40E_LINK_SPEED_10GB:
-			new_link.link_speed = ETH_SPEED_NUM_10G;
-			break;
-		case I40E_LINK_SPEED_20GB:
-			new_link.link_speed = ETH_SPEED_NUM_20G;
-			break;
-		case I40E_LINK_SPEED_40GB:
-			new_link.link_speed = ETH_SPEED_NUM_40G;
-			break;
-		default:
-			new_link.link_speed = ETH_SPEED_NUM_100M;
-			break;
-		}
-		/* full duplex only */
-		new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
-		new_link.link_status = vf->link_up ? ETH_LINK_UP :
-						     ETH_LINK_DOWN;
+
+	/* Linux driver PF host */
+	switch (vf->link_speed) {
+	case I40E_LINK_SPEED_100MB:
+		new_link.link_speed = ETH_SPEED_NUM_100M;
+		break;
+	case I40E_LINK_SPEED_1GB:
+		new_link.link_speed = ETH_SPEED_NUM_1G;
+		break;
+	case I40E_LINK_SPEED_10GB:
+		new_link.link_speed = ETH_SPEED_NUM_10G;
+		break;
+	case I40E_LINK_SPEED_20GB:
+		new_link.link_speed = ETH_SPEED_NUM_20G;
+		break;
+	case I40E_LINK_SPEED_40GB:
+		new_link.link_speed = ETH_SPEED_NUM_40G;
+		break;
+	default:
+		new_link.link_speed = ETH_SPEED_NUM_100M;
+		break;
 	}
+	/* full duplex only */
+	new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	new_link.link_status = vf->link_up ? ETH_LINK_UP :
+					     ETH_LINK_DOWN;
+
 	i40evf_dev_atomic_write_link_status(dev, &new_link);
 
 	return 0;
diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c
index d5b2d45..350f6a0 100644
--- a/drivers/net/i40e/i40e_pf.c
+++ b/drivers/net/i40e/i40e_pf.c
@@ -250,7 +250,7 @@ i40e_pf_host_vf_reset(struct i40e_pf_vf *vf, bool do_hw_reset)
 	return ret;
 }
 
-static int
+int
 i40e_pf_host_send_msg_to_vf(struct i40e_pf_vf *vf,
 			    uint32_t opcode,
 			    uint32_t retval,
@@ -847,18 +847,6 @@ i40e_pf_host_process_cmd_get_stats(struct i40e_pf_vf *vf)
 	return I40E_SUCCESS;
 }
 
-static void
-i40e_pf_host_process_cmd_get_link_status(struct i40e_pf_vf *vf)
-{
-	struct rte_eth_dev *dev = I40E_VSI_TO_ETH_DEV(vf->pf->main_vsi);
-
-	/* Update link status first to acquire latest link change */
-	i40e_dev_link_update(dev, 1);
-	i40e_pf_host_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_LINK_STAT,
-		I40E_SUCCESS, (uint8_t *)&dev->data->dev_link,
-				sizeof(struct rte_eth_link));
-}
-
 static int
 i40e_pf_host_process_cmd_cfg_vlan_offload(
 					struct i40e_pf_vf *vf,
@@ -909,6 +897,20 @@ send_msg:
 	return ret;
 }
 
+static void
+i40e_notify_vf_link_status(struct rte_eth_dev *dev, struct i40e_pf_vf *vf)
+{
+	struct i40e_virtchnl_pf_event event;
+
+	event.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
+	event.event_data.link_event.link_status =
+			dev->data->dev_link.link_status;
+	event.event_data.link_event.link_speed =
+			dev->data->dev_link.link_speed;
+	i40e_pf_host_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_EVENT,
+			I40E_SUCCESS, (uint8_t *)&event, sizeof(event));
+}
+
 void
 i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 			   uint16_t abs_vf_id, uint32_t opcode,
@@ -964,6 +966,7 @@ i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 	case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
 		PMD_DRV_LOG(INFO, "OP_ENABLE_QUEUES received");
 		i40e_pf_host_process_cmd_enable_queues(vf, msg, msglen);
+		i40e_notify_vf_link_status(dev, vf);
 		break;
 	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
 		PMD_DRV_LOG(INFO, "OP_DISABLE_QUEUE received");
@@ -993,10 +996,6 @@ i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 		PMD_DRV_LOG(INFO, "OP_GET_STATS received");
 		i40e_pf_host_process_cmd_get_stats(vf);
 		break;
-	case I40E_VIRTCHNL_OP_GET_LINK_STAT:
-		PMD_DRV_LOG(INFO, "OP_GET_LINK_STAT received");
-		i40e_pf_host_process_cmd_get_link_status(vf);
-		break;
 	case I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD:
 		PMD_DRV_LOG(INFO, "OP_CFG_VLAN_OFFLOAD received");
 		i40e_pf_host_process_cmd_cfg_vlan_offload(vf, msg, msglen);
diff --git a/drivers/net/i40e/i40e_pf.h b/drivers/net/i40e/i40e_pf.h
index 9c01829..cddc45c 100644
--- a/drivers/net/i40e/i40e_pf.h
+++ b/drivers/net/i40e/i40e_pf.h
@@ -59,9 +59,8 @@ enum i40e_virtchnl_ops_dpdk {
 	 * Keep some gap between Linux PF commands and
 	 * DPDK PF extended commands.
 	 */
-	I40E_VIRTCHNL_OP_GET_LINK_STAT = I40E_VIRTCHNL_OP_VERSION +
+	I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD = I40E_VIRTCHNL_OP_VERSION +
 						I40E_DPDK_OFFSET,
-	I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD,
 	I40E_VIRTCHNL_OP_CFG_VLAN_PVID,
 	I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EXT,
 };
-- 
2.5.5

Re: [dpdk-dev] [PATCH v3 2/2] net/i40e: fix VF bonded device link down

[Ferruh Yigit]

Hi Qiming,

On 10/28/2016 5:18 AM, Qiming Yang wrote:
> If VF device is used as slave of a bond device, it will be polled
> periodically through alarm. Interrupt is involved here. And then
> VF will send I40E_VIRTCHNL_OP_GET_LINK_STAT message to
> PF to query the status. The response is handled by interrupt
> callback. Interrupt is involved here again. That's why bond
> device cannot bring up.
> 
> This patch removes I40E_VIRTCHNL_OP_GET_LINK_STAT
> message. Link status in VF driver will be updated when PF driver
> notify it, and VF stores this link status locally. VF driver just
> returns the local status when being required.
> 
> Fixes: 4861cde46116 ("i40e: new poll mode driver")
> 
> Signed-off-by: Qiming Yang <qiming.yang@intel.com>
> ---

<...>

>  static void
> +i40e_notify_all_vfs_link_status(struct rte_eth_dev *dev)
> +{
> +	struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
> +	struct i40e_virtchnl_pf_event event;
> +	int i;
> +
> +	event.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
> +	event.event_data.link_event.link_status =
> +		dev->data->dev_link.link_status;
> +	event.event_data.link_event.link_speed =
> +		dev->data->dev_link.link_speed;

This gives a compilation error with icc [1], casting to enum will be
enough to fix I guess.

[1]
.../drivers/net/i40e/i40e_ethdev.c(5453): error #188: enumerated type
mixed with another type
        event.event_data.link_event.link_speed =
                                               ^
<...>

> diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c
> index d5b2d45..350f6a0 100644

<...>

>  
> +static void
> +i40e_notify_vf_link_status(struct rte_eth_dev *dev, struct i40e_pf_vf *vf)
> +{
> +	struct i40e_virtchnl_pf_event event;
> +
> +	event.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
> +	event.event_data.link_event.link_status =
> +			dev->data->dev_link.link_status;
> +	event.event_data.link_event.link_speed =
> +			dev->data->dev_link.link_speed;

Same error here:

.../drivers/net/i40e/i40e_pf.c(908): error #188: enumerated type mixed
with another type
        event.event_data.link_event.link_speed =
                                               ^


And while sending a new version of the patch, can you please:

1- CC the maintainers
2- Patchset already acked by Jingjing, keep the ack in the patches.

Thanks,
ferruh

[dpdk-dev] [PATCH v4 1/2] net/i40e: fix link status change interrupt

[Qiming Yang]

Previously, link status interrupt in i40e is achieved by checking
LINK_STAT_CHANGE_MASK in PFINT_ICR0 register which is provided only
for diagnostic use. Instead, drivers need to get the link status
change notification by using LSE (Link Status Event).

This patch enables LSE and calls LSC callback when the event is
received. This patch also removes the processing on
LINK_STAT_CHANGE_MASK.

Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
---
 v3 changes:
 * resolved the conflict with other changes, rework based
  on version: 16.11-rc2

 drivers/net/i40e/i40e_ethdev.c | 96 +++++++++---------------------------------
 1 file changed, 19 insertions(+), 77 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index bb81b15..078c581 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -108,7 +108,6 @@
 		I40E_PFINT_ICR0_ENA_GRST_MASK | \
 		I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK | \
 		I40E_PFINT_ICR0_ENA_STORM_DETECT_MASK | \
-		I40E_PFINT_ICR0_ENA_LINK_STAT_CHANGE_MASK | \
 		I40E_PFINT_ICR0_ENA_HMC_ERR_MASK | \
 		I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK | \
 		I40E_PFINT_ICR0_ENA_VFLR_MASK | \
@@ -1777,6 +1776,16 @@ i40e_dev_start(struct rte_eth_dev *dev)
 		if (dev->data->dev_conf.intr_conf.lsc != 0)
 			PMD_INIT_LOG(INFO, "lsc won't enable because of"
 				     " no intr multiplex\n");
+	} else if (dev->data->dev_conf.intr_conf.lsc != 0) {
+		ret = i40e_aq_set_phy_int_mask(hw,
+					       ~(I40E_AQ_EVENT_LINK_UPDOWN |
+					       I40E_AQ_EVENT_MODULE_QUAL_FAIL |
+					       I40E_AQ_EVENT_MEDIA_NA), NULL);
+		if (ret != I40E_SUCCESS)
+			PMD_DRV_LOG(WARNING, "Fail to set phy mask");
+
+		/* Call get_link_info aq commond to enable LSE */
+		i40e_dev_link_update(dev, 0);
 	}
 
 	/* enable uio intr after callback register */
@@ -1995,6 +2004,7 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
 	struct rte_eth_link link, old;
 	int status;
 	unsigned rep_cnt = MAX_REPEAT_TIME;
+	bool enable_lse = dev->data->dev_conf.intr_conf.lsc ? true : false;
 
 	memset(&link, 0, sizeof(link));
 	memset(&old, 0, sizeof(old));
@@ -2003,7 +2013,8 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
 
 	do {
 		/* Get link status information from hardware */
-		status = i40e_aq_get_link_info(hw, false, &link_status, NULL);
+		status = i40e_aq_get_link_info(hw, enable_lse,
+						&link_status, NULL);
 		if (status != I40E_SUCCESS) {
 			link.link_speed = ETH_SPEED_NUM_100M;
 			link.link_duplex = ETH_LINK_FULL_DUPLEX;
@@ -5465,6 +5476,12 @@ i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 					info.msg_buf,
 					info.msg_len);
 			break;
+		case i40e_aqc_opc_get_link_status:
+			ret = i40e_dev_link_update(dev, 0);
+			if (!ret)
+				_rte_eth_dev_callback_process(dev,
+					RTE_ETH_EVENT_INTR_LSC, NULL);
+			break;
 		default:
 			PMD_DRV_LOG(ERR, "Request %u is not supported yet",
 				    opcode);
@@ -5474,57 +5491,6 @@ i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 	rte_free(info.msg_buf);
 }
 
-/*
- * Interrupt handler is registered as the alarm callback for handling LSC
- * interrupt in a definite of time, in order to wait the NIC into a stable
- * state. Currently it waits 1 sec in i40e for the link up interrupt, and
- * no need for link down interrupt.
- */
-static void
-i40e_dev_interrupt_delayed_handler(void *param)
-{
-	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
-	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	uint32_t icr0;
-
-	/* read interrupt causes again */
-	icr0 = I40E_READ_REG(hw, I40E_PFINT_ICR0);
-
-#ifdef RTE_LIBRTE_I40E_DEBUG_DRIVER
-	if (icr0 & I40E_PFINT_ICR0_ECC_ERR_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: unrecoverable ECC error\n");
-	if (icr0 & I40E_PFINT_ICR0_MAL_DETECT_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: malicious programming detected\n");
-	if (icr0 & I40E_PFINT_ICR0_GRST_MASK)
-		PMD_DRV_LOG(INFO, "ICR0: global reset requested\n");
-	if (icr0 & I40E_PFINT_ICR0_PCI_EXCEPTION_MASK)
-		PMD_DRV_LOG(INFO, "ICR0: PCI exception\n activated\n");
-	if (icr0 & I40E_PFINT_ICR0_STORM_DETECT_MASK)
-		PMD_DRV_LOG(INFO, "ICR0: a change in the storm control "
-								"state\n");
-	if (icr0 & I40E_PFINT_ICR0_HMC_ERR_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: HMC error\n");
-	if (icr0 & I40E_PFINT_ICR0_PE_CRITERR_MASK)
-		PMD_DRV_LOG(ERR, "ICR0: protocol engine critical error\n");
-#endif /* RTE_LIBRTE_I40E_DEBUG_DRIVER */
-
-	if (icr0 & I40E_PFINT_ICR0_VFLR_MASK) {
-		PMD_DRV_LOG(INFO, "INT:VF reset detected\n");
-		i40e_dev_handle_vfr_event(dev);
-	}
-	if (icr0 & I40E_PFINT_ICR0_ADMINQ_MASK) {
-		PMD_DRV_LOG(INFO, "INT:ADMINQ event\n");
-		i40e_dev_handle_aq_msg(dev);
-	}
-
-	/* handle the link up interrupt in an alarm callback */
-	i40e_dev_link_update(dev, 0);
-	_rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
-
-	i40e_pf_enable_irq0(hw);
-	rte_intr_enable(&(dev->pci_dev->intr_handle));
-}
-
 /**
  * Interrupt handler triggered by NIC  for handling
  * specific interrupt.
@@ -5582,30 +5548,6 @@ i40e_dev_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
 		i40e_dev_handle_aq_msg(dev);
 	}
 
-	/* Link Status Change interrupt */
-	if (icr0 & I40E_PFINT_ICR0_LINK_STAT_CHANGE_MASK) {
-#define I40E_US_PER_SECOND 1000000
-		struct rte_eth_link link;
-
-		PMD_DRV_LOG(INFO, "ICR0: link status changed\n");
-		memset(&link, 0, sizeof(link));
-		rte_i40e_dev_atomic_read_link_status(dev, &link);
-		i40e_dev_link_update(dev, 0);
-
-		/*
-		 * For link up interrupt, it needs to wait 1 second to let the
-		 * hardware be a stable state. Otherwise several consecutive
-		 * interrupts can be observed.
-		 * For link down interrupt, no need to wait.
-		 */
-		if (!link.link_status && rte_eal_alarm_set(I40E_US_PER_SECOND,
-			i40e_dev_interrupt_delayed_handler, (void *)dev) >= 0)
-			return;
-		else
-			_rte_eth_dev_callback_process(dev,
-				RTE_ETH_EVENT_INTR_LSC, NULL);
-	}
-
 done:
 	/* Enable interrupt */
 	i40e_pf_enable_irq0(hw);
-- 
2.5.5

[dpdk-dev] [PATCH v4 2/2] net/i40e: fix VF bonded device link down

[Qiming Yang]

If VF device is used as slave of a bond device, it will be polled
periodically through alarm. Interrupt is involved here. And then
VF will send I40E_VIRTCHNL_OP_GET_LINK_STAT message to
PF to query the status. The response is handled by interrupt
callback. Interrupt is involved here again. That's why bond
device cannot bring up.

This patch removes I40E_VIRTCHNL_OP_GET_LINK_STAT
message. Link status in VF driver will be updated when PF driver
notify it, and VF stores this link status locally. VF driver just
returns the local status when being required.

Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
---
 v3 changes:
 * resolved the conflict with other changes, rework based
   on version: 16.11-rc2
 v4 changes:
 *fixed compilation error with icc

 drivers/net/i40e/i40e_ethdev.c    | 22 ++++++++++-
 drivers/net/i40e/i40e_ethdev.h    |  4 +-
 drivers/net/i40e/i40e_ethdev_vf.c | 81 +++++++++++++--------------------------
 drivers/net/i40e/i40e_pf.c        | 33 ++++++++--------
 drivers/net/i40e/i40e_pf.h        |  3 +-
 5 files changed, 67 insertions(+), 76 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 078c581..fbaec23 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -5441,6 +5441,24 @@ i40e_dev_handle_vfr_event(struct rte_eth_dev *dev)
 }
 
 static void
+i40e_notify_all_vfs_link_status(struct rte_eth_dev *dev)
+{
+	struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+	struct i40e_virtchnl_pf_event event;
+	int i;
+
+	event.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
+	event.event_data.link_event.link_status =
+		dev->data->dev_link.link_status;
+	event.event_data.link_event.link_speed =
+		(enum i40e_aq_link_speed)dev->data->dev_link.link_speed;
+
+	for (i = 0; i < pf->vf_num; i++)
+		i40e_pf_host_send_msg_to_vf(&pf->vfs[i], I40E_VIRTCHNL_OP_EVENT,
+				I40E_SUCCESS, (uint8_t *)&event, sizeof(event));
+}
+
+static void
 i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 {
 	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -5478,9 +5496,11 @@ i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
 			break;
 		case i40e_aqc_opc_get_link_status:
 			ret = i40e_dev_link_update(dev, 0);
-			if (!ret)
+			if (!ret) {
+				i40e_notify_all_vfs_link_status(dev);
 				_rte_eth_dev_callback_process(dev,
 					RTE_ETH_EVENT_INTR_LSC, NULL);
+			}
 			break;
 		default:
 			PMD_DRV_LOG(ERR, "Request %u is not supported yet",
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 24b8580..298cef4 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -609,7 +609,9 @@ int i40e_hash_filter_inset_select(struct i40e_hw *hw,
 			     struct rte_eth_input_set_conf *conf);
 int i40e_fdir_filter_inset_select(struct i40e_pf *pf,
 			     struct rte_eth_input_set_conf *conf);
-
+int i40e_pf_host_send_msg_to_vf(struct i40e_pf_vf *vf, uint32_t opcode,
+				uint32_t retval, uint8_t *msg,
+				uint16_t msglen);
 void i40e_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
 	struct rte_eth_rxq_info *qinfo);
 void i40e_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 4b835cb..aa306d6 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -126,8 +126,6 @@ static void i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev);
 static void i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev);
 static void i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev);
 static void i40evf_dev_allmulticast_disable(struct rte_eth_dev *dev);
-static int i40evf_get_link_status(struct rte_eth_dev *dev,
-				  struct rte_eth_link *link);
 static int i40evf_init_vlan(struct rte_eth_dev *dev);
 static int i40evf_dev_rx_queue_start(struct rte_eth_dev *dev,
 				     uint16_t rx_queue_id);
@@ -1084,31 +1082,6 @@ i40evf_del_vlan(struct rte_eth_dev *dev, uint16_t vlanid)
 	return err;
 }
 
-static int
-i40evf_get_link_status(struct rte_eth_dev *dev, struct rte_eth_link *link)
-{
-	struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
-	int err;
-	struct vf_cmd_info args;
-	struct rte_eth_link *new_link;
-
-	args.ops = (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_GET_LINK_STAT;
-	args.in_args = NULL;
-	args.in_args_size = 0;
-	args.out_buffer = vf->aq_resp;
-	args.out_size = I40E_AQ_BUF_SZ;
-	err = i40evf_execute_vf_cmd(dev, &args);
-	if (err) {
-		PMD_DRV_LOG(ERR, "fail to execute command OP_GET_LINK_STAT");
-		return err;
-	}
-
-	new_link = (struct rte_eth_link *)args.out_buffer;
-	(void)rte_memcpy(link, new_link, sizeof(*link));
-
-	return 0;
-}
-
 static const struct rte_pci_id pci_id_i40evf_map[] = {
 	{ RTE_PCI_DEVICE(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_VF) },
 	{ RTE_PCI_DEVICE(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_VF_HV) },
@@ -2146,35 +2119,33 @@ i40evf_dev_link_update(struct rte_eth_dev *dev,
 	 * DPDK pf host provide interfacet to acquire link status
 	 * while Linux driver does not
 	 */
-	if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
-		i40evf_get_link_status(dev, &new_link);
-	else {
-		/* Linux driver PF host */
-		switch (vf->link_speed) {
-		case I40E_LINK_SPEED_100MB:
-			new_link.link_speed = ETH_SPEED_NUM_100M;
-			break;
-		case I40E_LINK_SPEED_1GB:
-			new_link.link_speed = ETH_SPEED_NUM_1G;
-			break;
-		case I40E_LINK_SPEED_10GB:
-			new_link.link_speed = ETH_SPEED_NUM_10G;
-			break;
-		case I40E_LINK_SPEED_20GB:
-			new_link.link_speed = ETH_SPEED_NUM_20G;
-			break;
-		case I40E_LINK_SPEED_40GB:
-			new_link.link_speed = ETH_SPEED_NUM_40G;
-			break;
-		default:
-			new_link.link_speed = ETH_SPEED_NUM_100M;
-			break;
-		}
-		/* full duplex only */
-		new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
-		new_link.link_status = vf->link_up ? ETH_LINK_UP :
-						     ETH_LINK_DOWN;
+
+	/* Linux driver PF host */
+	switch (vf->link_speed) {
+	case I40E_LINK_SPEED_100MB:
+		new_link.link_speed = ETH_SPEED_NUM_100M;
+		break;
+	case I40E_LINK_SPEED_1GB:
+		new_link.link_speed = ETH_SPEED_NUM_1G;
+		break;
+	case I40E_LINK_SPEED_10GB:
+		new_link.link_speed = ETH_SPEED_NUM_10G;
+		break;
+	case I40E_LINK_SPEED_20GB:
+		new_link.link_speed = ETH_SPEED_NUM_20G;
+		break;
+	case I40E_LINK_SPEED_40GB:
+		new_link.link_speed = ETH_SPEED_NUM_40G;
+		break;
+	default:
+		new_link.link_speed = ETH_SPEED_NUM_100M;
+		break;
 	}
+	/* full duplex only */
+	new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	new_link.link_status = vf->link_up ? ETH_LINK_UP :
+					     ETH_LINK_DOWN;
+
 	i40evf_dev_atomic_write_link_status(dev, &new_link);
 
 	return 0;
diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c
index d5b2d45..ddfc140 100644
--- a/drivers/net/i40e/i40e_pf.c
+++ b/drivers/net/i40e/i40e_pf.c
@@ -250,7 +250,7 @@ i40e_pf_host_vf_reset(struct i40e_pf_vf *vf, bool do_hw_reset)
 	return ret;
 }
 
-static int
+int
 i40e_pf_host_send_msg_to_vf(struct i40e_pf_vf *vf,
 			    uint32_t opcode,
 			    uint32_t retval,
@@ -847,18 +847,6 @@ i40e_pf_host_process_cmd_get_stats(struct i40e_pf_vf *vf)
 	return I40E_SUCCESS;
 }
 
-static void
-i40e_pf_host_process_cmd_get_link_status(struct i40e_pf_vf *vf)
-{
-	struct rte_eth_dev *dev = I40E_VSI_TO_ETH_DEV(vf->pf->main_vsi);
-
-	/* Update link status first to acquire latest link change */
-	i40e_dev_link_update(dev, 1);
-	i40e_pf_host_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_LINK_STAT,
-		I40E_SUCCESS, (uint8_t *)&dev->data->dev_link,
-				sizeof(struct rte_eth_link));
-}
-
 static int
 i40e_pf_host_process_cmd_cfg_vlan_offload(
 					struct i40e_pf_vf *vf,
@@ -909,6 +897,20 @@ send_msg:
 	return ret;
 }
 
+static void
+i40e_notify_vf_link_status(struct rte_eth_dev *dev, struct i40e_pf_vf *vf)
+{
+	struct i40e_virtchnl_pf_event event;
+
+	event.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
+	event.event_data.link_event.link_status =
+		dev->data->dev_link.link_status;
+	event.event_data.link_event.link_speed =
+		(enum i40e_aq_link_speed)dev->data->dev_link.link_speed;
+	i40e_pf_host_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_EVENT,
+		I40E_SUCCESS, (uint8_t *)&event, sizeof(event));
+}
+
 void
 i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 			   uint16_t abs_vf_id, uint32_t opcode,
@@ -964,6 +966,7 @@ i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 	case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
 		PMD_DRV_LOG(INFO, "OP_ENABLE_QUEUES received");
 		i40e_pf_host_process_cmd_enable_queues(vf, msg, msglen);
+		i40e_notify_vf_link_status(dev, vf);
 		break;
 	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
 		PMD_DRV_LOG(INFO, "OP_DISABLE_QUEUE received");
@@ -993,10 +996,6 @@ i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 		PMD_DRV_LOG(INFO, "OP_GET_STATS received");
 		i40e_pf_host_process_cmd_get_stats(vf);
 		break;
-	case I40E_VIRTCHNL_OP_GET_LINK_STAT:
-		PMD_DRV_LOG(INFO, "OP_GET_LINK_STAT received");
-		i40e_pf_host_process_cmd_get_link_status(vf);
-		break;
 	case I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD:
 		PMD_DRV_LOG(INFO, "OP_CFG_VLAN_OFFLOAD received");
 		i40e_pf_host_process_cmd_cfg_vlan_offload(vf, msg, msglen);
diff --git a/drivers/net/i40e/i40e_pf.h b/drivers/net/i40e/i40e_pf.h
index 9c01829..cddc45c 100644
--- a/drivers/net/i40e/i40e_pf.h
+++ b/drivers/net/i40e/i40e_pf.h
@@ -59,9 +59,8 @@ enum i40e_virtchnl_ops_dpdk {
 	 * Keep some gap between Linux PF commands and
 	 * DPDK PF extended commands.
 	 */
-	I40E_VIRTCHNL_OP_GET_LINK_STAT = I40E_VIRTCHNL_OP_VERSION +
+	I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD = I40E_VIRTCHNL_OP_VERSION +
 						I40E_DPDK_OFFSET,
-	I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD,
 	I40E_VIRTCHNL_OP_CFG_VLAN_PVID,
 	I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EXT,
 };
-- 
2.5.5

Re: [dpdk-dev] [PATCH v4 2/2] net/i40e: fix VF bonded device link down

[Thomas Monjalon]

2016-11-04 17:10, Qiming Yang:
> If VF device is used as slave of a bond device, it will be polled
> periodically through alarm. Interrupt is involved here. And then
> VF will send I40E_VIRTCHNL_OP_GET_LINK_STAT message to
> PF to query the status. The response is handled by interrupt
> callback. Interrupt is involved here again. That's why bond
> device cannot bring up.
> 
> This patch removes I40E_VIRTCHNL_OP_GET_LINK_STAT
> message. Link status in VF driver will be updated when PF driver
> notify it, and VF stores this link status locally. VF driver just
> returns the local status when being required.
> 
> Fixes: 4861cde46116 ("i40e: new poll mode driver")
> 
> Signed-off-by: Qiming Yang <qiming.yang@intel.com>
> Acked-by: Jingjing Wu <jingjing.wu@intel.com>

Series applied, thanks and welcome Qiming!