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From: Ting Xu <ting.xu@intel.com>
To: dev@dpdk.org
Cc: qi.z.zhang@intel.com, beilei.xing@intel.com,
	jingjing.wu@intel.com, Ting Xu <ting.xu@intel.com>
Subject: [dpdk-dev] [PATCH v7 1/6] net/iavf: handle virtchnl event message without interrupt
Date: Sun, 18 Oct 2020 18:34:25 +0800
Message-ID: <20201018103430.30997-2-ting.xu@intel.com> (raw)
In-Reply-To: <20201018103430.30997-1-ting.xu@intel.com>

Currently, VF only handle virtchnl event message when interrupt is
called. In some cases, event message is supposed to be handled with
interrupt disabled, for example request queues. To solve this issue,
virtchnl event message handling are added in reading message from PF
in this patch.

Signed-off-by: Ting Xu <ting.xu@intel.com>
---
 drivers/net/iavf/iavf.h       |   8 ++
 drivers/net/iavf/iavf_vchnl.c | 138 ++++++++++++++++++++++------------
 2 files changed, 97 insertions(+), 49 deletions(-)

diff --git a/drivers/net/iavf/iavf.h b/drivers/net/iavf/iavf.h
index 3198d85b3..9c16324c1 100644
--- a/drivers/net/iavf/iavf.h
+++ b/drivers/net/iavf/iavf.h
@@ -107,6 +107,14 @@ struct iavf_fdir_info {
 /* TODO: is that correct to assume the max number to be 16 ?*/
 #define IAVF_MAX_MSIX_VECTORS   16
 
+/* Message type read in admin queue from PF */
+enum iavf_aq_result {
+	IAVF_MSG_ERR = -1, /* Meet error when accessing admin queue */
+	IAVF_MSG_NON,      /* Read nothing from admin queue */
+	IAVF_MSG_SYS,      /* Read system msg from admin queue */
+	IAVF_MSG_CMD,      /* Read async command result */
+};
+
 /* Structure to store private data specific for VF instance. */
 struct iavf_info {
 	uint16_t num_queue_pairs;
diff --git a/drivers/net/iavf/iavf_vchnl.c b/drivers/net/iavf/iavf_vchnl.c
index db0b76876..d53aeba5a 100644
--- a/drivers/net/iavf/iavf_vchnl.c
+++ b/drivers/net/iavf/iavf_vchnl.c
@@ -25,14 +25,54 @@
 #define MAX_TRY_TIMES 200
 #define ASQ_DELAY_MS  10
 
+static uint32_t
+iavf_convert_link_speed(enum virtchnl_link_speed virt_link_speed)
+{
+	uint32_t speed;
+
+	switch (virt_link_speed) {
+	case VIRTCHNL_LINK_SPEED_100MB:
+		speed = 100;
+		break;
+	case VIRTCHNL_LINK_SPEED_1GB:
+		speed = 1000;
+		break;
+	case VIRTCHNL_LINK_SPEED_10GB:
+		speed = 10000;
+		break;
+	case VIRTCHNL_LINK_SPEED_40GB:
+		speed = 40000;
+		break;
+	case VIRTCHNL_LINK_SPEED_20GB:
+		speed = 20000;
+		break;
+	case VIRTCHNL_LINK_SPEED_25GB:
+		speed = 25000;
+		break;
+	case VIRTCHNL_LINK_SPEED_2_5GB:
+		speed = 2500;
+		break;
+	case VIRTCHNL_LINK_SPEED_5GB:
+		speed = 5000;
+		break;
+	default:
+		speed = 0;
+		break;
+	}
+
+	return speed;
+}
+
 /* Read data in admin queue to get msg from pf driver */
-static enum iavf_status
+static enum iavf_aq_result
 iavf_read_msg_from_pf(struct iavf_adapter *adapter, uint16_t buf_len,
 		     uint8_t *buf)
 {
 	struct iavf_hw *hw = IAVF_DEV_PRIVATE_TO_HW(adapter);
 	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(adapter);
+	struct rte_eth_dev *dev = adapter->eth_dev;
 	struct iavf_arq_event_info event;
+	enum iavf_aq_result result = IAVF_MSG_NON;
 	enum virtchnl_ops opcode;
 	int ret;
 
@@ -42,7 +82,9 @@ iavf_read_msg_from_pf(struct iavf_adapter *adapter, uint16_t buf_len,
 	/* Can't read any msg from adminQ */
 	if (ret) {
 		PMD_DRV_LOG(DEBUG, "Can't read msg from AQ");
-		return ret;
+		if (ret != IAVF_ERR_ADMIN_QUEUE_NO_WORK)
+			result = IAVF_MSG_ERR;
+		return result;
 	}
 
 	opcode = (enum virtchnl_ops)rte_le_to_cpu_32(event.desc.cookie_high);
@@ -52,16 +94,51 @@ iavf_read_msg_from_pf(struct iavf_adapter *adapter, uint16_t buf_len,
 	PMD_DRV_LOG(DEBUG, "AQ from pf carries opcode %u, retval %d",
 		    opcode, vf->cmd_retval);
 
-	if (opcode != vf->pend_cmd) {
-		if (opcode != VIRTCHNL_OP_EVENT) {
-			PMD_DRV_LOG(WARNING,
-				    "command mismatch, expect %u, get %u",
-				    vf->pend_cmd, opcode);
+	if (opcode == VIRTCHNL_OP_EVENT) {
+		struct virtchnl_pf_event *vpe =
+			(struct virtchnl_pf_event *)event.msg_buf;
+
+		result = IAVF_MSG_SYS;
+		switch (vpe->event) {
+		case VIRTCHNL_EVENT_LINK_CHANGE:
+			vf->link_up =
+				vpe->event_data.link_event.link_status;
+			if (vf->vf_res->vf_cap_flags &
+				VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
+				vf->link_speed =
+				    vpe->event_data.link_event_adv.link_speed;
+			} else {
+				enum virtchnl_link_speed speed;
+				speed = vpe->event_data.link_event.link_speed;
+				vf->link_speed = iavf_convert_link_speed(speed);
+			}
+			iavf_dev_link_update(dev, 0);
+			PMD_DRV_LOG(INFO, "Link status update:%s",
+					vf->link_up ? "up" : "down");
+			break;
+		case VIRTCHNL_EVENT_RESET_IMPENDING:
+			vf->vf_reset = true;
+			PMD_DRV_LOG(INFO, "VF is resetting");
+			break;
+		case VIRTCHNL_EVENT_PF_DRIVER_CLOSE:
+			vf->dev_closed = true;
+			PMD_DRV_LOG(INFO, "PF driver closed");
+			break;
+		default:
+			PMD_DRV_LOG(ERR, "%s: Unknown event %d from pf",
+					__func__, vpe->event);
+		}
+	}  else {
+		/* async reply msg on command issued by vf previously */
+		result = IAVF_MSG_CMD;
+		if (opcode != vf->pend_cmd) {
+			PMD_DRV_LOG(WARNING, "command mismatch, expect %u, get %u",
+					vf->pend_cmd, opcode);
+			result = IAVF_MSG_ERR;
 		}
-		return IAVF_ERR_OPCODE_MISMATCH;
 	}
 
-	return IAVF_SUCCESS;
+	return result;
 }
 
 static int
@@ -69,6 +146,7 @@ iavf_execute_vf_cmd(struct iavf_adapter *adapter, struct iavf_cmd_info *args)
 {
 	struct iavf_hw *hw = IAVF_DEV_PRIVATE_TO_HW(adapter);
 	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(adapter);
+	enum iavf_aq_result result;
 	enum iavf_status ret;
 	int err = 0;
 	int i = 0;
@@ -97,9 +175,9 @@ iavf_execute_vf_cmd(struct iavf_adapter *adapter, struct iavf_cmd_info *args)
 	case VIRTCHNL_OP_GET_SUPPORTED_RXDIDS:
 		/* for init virtchnl ops, need to poll the response */
 		do {
-			ret = iavf_read_msg_from_pf(adapter, args->out_size,
+			result = iavf_read_msg_from_pf(adapter, args->out_size,
 						   args->out_buffer);
-			if (ret == IAVF_SUCCESS)
+			if (result == IAVF_MSG_CMD)
 				break;
 			rte_delay_ms(ASQ_DELAY_MS);
 		} while (i++ < MAX_TRY_TIMES);
@@ -136,44 +214,6 @@ iavf_execute_vf_cmd(struct iavf_adapter *adapter, struct iavf_cmd_info *args)
 	return err;
 }
 
-static uint32_t
-iavf_convert_link_speed(enum virtchnl_link_speed virt_link_speed)
-{
-	uint32_t speed;
-
-	switch (virt_link_speed) {
-	case VIRTCHNL_LINK_SPEED_100MB:
-		speed = 100;
-		break;
-	case VIRTCHNL_LINK_SPEED_1GB:
-		speed = 1000;
-		break;
-	case VIRTCHNL_LINK_SPEED_10GB:
-		speed = 10000;
-		break;
-	case VIRTCHNL_LINK_SPEED_40GB:
-		speed = 40000;
-		break;
-	case VIRTCHNL_LINK_SPEED_20GB:
-		speed = 20000;
-		break;
-	case VIRTCHNL_LINK_SPEED_25GB:
-		speed = 25000;
-		break;
-	case VIRTCHNL_LINK_SPEED_2_5GB:
-		speed = 2500;
-		break;
-	case VIRTCHNL_LINK_SPEED_5GB:
-		speed = 5000;
-		break;
-	default:
-		speed = 0;
-		break;
-	}
-
-	return speed;
-}
-
 static void
 iavf_handle_pf_event_msg(struct rte_eth_dev *dev, uint8_t *msg,
 			uint16_t msglen)
-- 
2.17.1


  reply	other threads:[~2020-10-18 10:45 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-09  7:20 [dpdk-dev] [PATCH v1 0/2] enable large VF configuration Ting Xu
2020-09-09  7:20 ` [dpdk-dev] [PATCH v1 1/2] net/iavf: add IAVF request queues Ting Xu
2020-09-09  7:20 ` [dpdk-dev] [PATCH v1 2/2] net/iavf: enable large VF configuration Ting Xu
2020-09-25  5:59 ` [dpdk-dev] [PATCH v2 0/2] " Ting Xu
2020-09-25  5:59   ` [dpdk-dev] [PATCH v2 1/2] net/iavf: add IAVF request queues function Ting Xu
2020-09-25  5:59   ` [dpdk-dev] [PATCH v2 2/2] net/iavf: enable large VF configuration Ting Xu
2020-09-27 12:42 ` [dpdk-dev] [PATCH v3 0/2] " Ting Xu
2020-09-27 12:42   ` [dpdk-dev] [PATCH v3 1/2] net/iavf: add IAVF request queues function Ting Xu
2020-09-27 12:42   ` [dpdk-dev] [PATCH v3 2/2] net/iavf: enable large VF configuration Ting Xu
2020-10-15  5:21 ` [dpdk-dev] [PATCH v4 0/2] " Ting Xu
2020-10-15  5:21   ` [dpdk-dev] [PATCH v4 1/2] net/iavf: add IAVF request queues function Ting Xu
2020-10-15  5:21   ` [dpdk-dev] [PATCH v4 2/2] net/iavf: enable large VF configuration Ting Xu
2020-10-16  1:21 ` [dpdk-dev] [PATCH v5 0/2] " Ting Xu
2020-10-16  1:21   ` [dpdk-dev] [PATCH v5 1/2] net/iavf: add IAVF request queues function Ting Xu
2020-10-16  1:21   ` [dpdk-dev] [PATCH v5 2/2] net/iavf: enable large VF configuration Ting Xu
2020-10-16  1:34 ` [dpdk-dev] [PATCH v5 0/2] " Ting Xu
2020-10-16  1:34   ` [dpdk-dev] [PATCH v5 1/2] net/iavf: add IAVF request queues function Ting Xu
2020-10-16  1:34   ` [dpdk-dev] [PATCH v5 2/2] net/iavf: enable large VF configuration Ting Xu
2020-10-16  1:43 ` [dpdk-dev] [PATCH v6 0/2] " Ting Xu
2020-10-16  1:43   ` [dpdk-dev] [PATCH v6 1/2] net/iavf: add IAVF request queues function Ting Xu
2020-10-16  8:41     ` Xing, Beilei
2020-10-18 10:29       ` Xu, Ting
2020-10-16  1:43   ` [dpdk-dev] [PATCH v6 2/2] net/iavf: enable large VF configuration Ting Xu
2020-10-18 10:34 ` [dpdk-dev] [PATCH v7 0/6] " Ting Xu
2020-10-18 10:34   ` Ting Xu [this message]
2020-10-21  8:15     ` [dpdk-dev] [PATCH v7 1/6] net/iavf: handle virtchnl event message without interrupt Xing, Beilei
2020-10-18 10:34   ` [dpdk-dev] [PATCH v7 2/6] net/iavf: add IAVF request queues function Ting Xu
2020-10-18 10:34   ` [dpdk-dev] [PATCH v7 3/6] net/iavf: negotiate large VF and request more queues Ting Xu
2020-10-18 10:34   ` [dpdk-dev] [PATCH v7 4/6] net/iavf: enable multiple queues configurations for large VF Ting Xu
2020-10-18 10:34   ` [dpdk-dev] [PATCH v7 5/6] net/iavf: enable IRQ mapping configuration " Ting Xu
2020-10-18 10:34   ` [dpdk-dev] [PATCH v7 6/6] net/iavf: add enable/disable queues " Ting Xu
2020-10-22  6:48 ` [dpdk-dev] [PATCH v8 0/6] enable large VF configuration Ting Xu
2020-10-22  6:48   ` [dpdk-dev] [PATCH v8 1/6] net/iavf: handle virtchnl event message without interrupt Ting Xu
2020-10-22  6:48   ` [dpdk-dev] [PATCH v8 2/6] net/iavf: add IAVF request queues function Ting Xu
2020-10-23 10:07     ` Ferruh Yigit
2020-10-25  2:28       ` Xu, Ting
2020-10-23 10:11     ` Ferruh Yigit
2020-10-23 10:17       ` Ferruh Yigit
2020-10-22  6:48   ` [dpdk-dev] [PATCH v8 3/6] net/iavf: negotiate large VF and request more queues Ting Xu
2020-10-22  6:49   ` [dpdk-dev] [PATCH v8 4/6] net/iavf: enable multiple queues configurations for large VF Ting Xu
2020-10-22  6:49   ` [dpdk-dev] [PATCH v8 5/6] net/iavf: enable IRQ mapping configuration " Ting Xu
2020-10-22  6:49   ` [dpdk-dev] [PATCH v8 6/6] net/iavf: add enable/disable queues " Ting Xu
2020-10-22  6:54   ` [dpdk-dev] [PATCH v8 0/6] enable large VF configuration Xing, Beilei
2020-10-22  8:50     ` Zhang, Qi Z

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