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From: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] [PATCH net v4 2/2] i40e: refactor repeated link state reporting code
Date: Mon, 18 Jan 2021 19:34:54 +0000	[thread overview]
Message-ID: <20210118193454.275037-3-arkadiusz.kubalewski@intel.com> (raw)
In-Reply-To: <20210118193454.275037-1-arkadiusz.kubalewski@intel.com>

From: Aleksandr Loktionov <aleksandr.loktionov@intel.com>

Refactor repeated link state reporting code into a separate helper functions:
i40e_set_vf_link_state() i40e_vc_link_speed2mbps().

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
---
v2: improve commit message
v3: net tree target
v4: split into 2 patches
---
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 108 +++++++++++-------
 1 file changed, 69 insertions(+), 39 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 1b6ec9b..6621943 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -39,6 +39,66 @@ static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
 	}
 }
 
+/**
+ * i40e_vc_link_speed2mbps
+ * converts i40e_aq_link_speed to integer value of Mbps
+ * @link_speed: the speed to convert
+ *
+ * return the speed as direct value of Mbps.
+ **/
+static u32
+i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed)
+{
+	switch (link_speed) {
+	case I40E_LINK_SPEED_100MB:
+		return SPEED_100;
+	case I40E_LINK_SPEED_1GB:
+		return SPEED_1000;
+	case I40E_LINK_SPEED_2_5GB:
+		return SPEED_2500;
+	case I40E_LINK_SPEED_5GB:
+		return SPEED_5000;
+	case I40E_LINK_SPEED_10GB:
+		return SPEED_10000;
+	case I40E_LINK_SPEED_20GB:
+		return SPEED_20000;
+	case I40E_LINK_SPEED_25GB:
+		return SPEED_25000;
+	case I40E_LINK_SPEED_40GB:
+		return SPEED_40000;
+	case I40E_LINK_SPEED_UNKNOWN:
+		return SPEED_UNKNOWN;
+	}
+	return SPEED_UNKNOWN;
+}
+
+/**
+ * i40e_set_vf_link_state
+ * @vf: pointer to the VF structure
+ * @pfe: pointer to PF event structure
+ * @ls: pointer to link status structure
+ *
+ * set a link state on a single vf
+ **/
+static void i40e_set_vf_link_state(struct i40e_vf *vf,
+				   struct virtchnl_pf_event *pfe, struct i40e_link_status *ls)
+{
+	u8 link_status = ls->link_info & I40E_AQ_LINK_UP;
+
+	if (vf->link_forced)
+		link_status = vf->link_up;
+
+	if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
+		pfe->event_data.link_event_adv.link_speed = link_status ?
+			i40e_vc_link_speed2mbps(ls->link_speed) : 0;
+		pfe->event_data.link_event_adv.link_status = link_status;
+	} else {
+		pfe->event_data.link_event.link_speed = link_status ?
+			i40e_virtchnl_link_speed(ls->link_speed) : 0;
+		pfe->event_data.link_event.link_status = link_status;
+	}
+}
+
 /**
  * i40e_vc_notify_vf_link_state
  * @vf: pointer to the VF structure
@@ -55,16 +115,9 @@ static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
 
 	pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
 	pfe.severity = PF_EVENT_SEVERITY_INFO;
-	if (vf->link_forced) {
-		pfe.event_data.link_event.link_status = vf->link_up;
-		pfe.event_data.link_event.link_speed =
-			(vf->link_up ? i40e_virtchnl_link_speed(ls->link_speed) : 0);
-	} else {
-		pfe.event_data.link_event.link_status =
-			ls->link_info & I40E_AQ_LINK_UP;
-		pfe.event_data.link_event.link_speed =
-			i40e_virtchnl_link_speed(ls->link_speed);
-	}
+
+	i40e_set_vf_link_state(vf, &pfe, ls);
+
 	i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
 			       0, (u8 *)&pfe, sizeof(pfe), NULL);
 }
@@ -1940,6 +1993,7 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
 				  VIRTCHNL_VF_OFFLOAD_VLAN;
 
 	vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
+	vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
 	vsi = pf->vsi[vf->lan_vsi_idx];
 	if (!vsi->info.pvid)
 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
@@ -3687,26 +3741,8 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
 	}
 
 	/* get link speed in MB to validate rate limit */
-	switch (ls->link_speed) {
-	case VIRTCHNL_LINK_SPEED_100MB:
-		speed = SPEED_100;
-		break;
-	case VIRTCHNL_LINK_SPEED_1GB:
-		speed = SPEED_1000;
-		break;
-	case VIRTCHNL_LINK_SPEED_10GB:
-		speed = SPEED_10000;
-		break;
-	case VIRTCHNL_LINK_SPEED_20GB:
-		speed = SPEED_20000;
-		break;
-	case VIRTCHNL_LINK_SPEED_25GB:
-		speed = SPEED_25000;
-		break;
-	case VIRTCHNL_LINK_SPEED_40GB:
-		speed = SPEED_40000;
-		break;
-	default:
+	speed = i40e_vc_link_speed2mbps(ls->link_speed);
+	if (speed == SPEED_UNKNOWN) {
 		dev_err(&pf->pdev->dev,
 			"Cannot detect link speed\n");
 		aq_ret = I40E_ERR_PARAM;
@@ -4455,23 +4491,17 @@ int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
 	switch (link) {
 	case IFLA_VF_LINK_STATE_AUTO:
 		vf->link_forced = false;
-		pfe.event_data.link_event.link_status =
-			pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
-		pfe.event_data.link_event.link_speed =
-			(enum virtchnl_link_speed)
-			pf->hw.phy.link_info.link_speed;
+		i40e_set_vf_link_state(vf, &pfe, ls);
 		break;
 	case IFLA_VF_LINK_STATE_ENABLE:
 		vf->link_forced = true;
 		vf->link_up = true;
-		pfe.event_data.link_event.link_status = true;
-		pfe.event_data.link_event.link_speed = i40e_virtchnl_link_speed(ls->link_speed);
+		i40e_set_vf_link_state(vf, &pfe, ls);
 		break;
 	case IFLA_VF_LINK_STATE_DISABLE:
 		vf->link_forced = true;
 		vf->link_up = false;
-		pfe.event_data.link_event.link_status = false;
-		pfe.event_data.link_event.link_speed = 0;
+		i40e_set_vf_link_state(vf, &pfe, ls);
 		break;
 	default:
 		ret = -EINVAL;
-- 
2.18.4

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  parent reply	other threads:[~2021-01-18 19:34 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-18 19:34 [Intel-wired-lan] [PATCH net v4 0/2] i40e: Fix for link-flapping Arkadiusz Kubalewski
2021-01-18 19:34 ` [Intel-wired-lan] [PATCH net v4 1/2] i40e: Revert "i40e: don't report link up for a VF who hasn't enabled queues" Arkadiusz Kubalewski
2021-01-20  1:29   ` Nguyen, Anthony L
2021-01-20 10:17     ` Loktionov, Aleksandr
2021-01-20 22:17       ` Nguyen, Anthony L
2021-01-18 19:34 ` Arkadiusz Kubalewski [this message]
2021-01-20  1:28   ` [Intel-wired-lan] [PATCH net v4 2/2] i40e: refactor repeated link state reporting code Nguyen, Anthony L

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