netdev - [PATCH net-next 08/12] bnxt_en: Enhance hwmon temperature reporting

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Date: Mon, 14 Aug 2023 21:56:54 -0700
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	gospo@...adcom.com,
	Kalesh AP <kalesh-anakkur.purayil@...adcom.com>,
	Somnath Kotur <somnath.kotur@...adcom.com>
Subject: [PATCH net-next 08/12] bnxt_en: Enhance hwmon temperature reporting

From: Kalesh AP <kalesh-anakkur.purayil@...adcom.com>

Driver currently does hwmon device register and unregister
in open and close() respectively. As a result, user will not
be able to query hwmon temperature when interface is in
ifdown state.

Enhance it by moving the hwmon register/unregister to the
probe/remove functions.

Reviewed-by: Somnath Kotur <somnath.kotur@...adcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 5d6ea2782c2f..f9bb66525d77 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -10275,7 +10275,7 @@ static struct attribute *bnxt_attrs[] = {
 };
 ATTRIBUTE_GROUPS(bnxt);
 
-static void bnxt_hwmon_close(struct bnxt *bp)
+static void bnxt_hwmon_uninit(struct bnxt *bp)
 {
 	if (bp->hwmon_dev) {
 		hwmon_device_unregister(bp->hwmon_dev);
@@ -10283,7 +10283,7 @@ static void bnxt_hwmon_close(struct bnxt *bp)
 	}
 }
 
-static void bnxt_hwmon_open(struct bnxt *bp)
+static void bnxt_hwmon_init(struct bnxt *bp)
 {
 	struct hwrm_temp_monitor_query_input *req;
 	struct pci_dev *pdev = bp->pdev;
@@ -10293,7 +10293,7 @@ static void bnxt_hwmon_open(struct bnxt *bp)
 	if (!rc)
 		rc = hwrm_req_send_silent(bp, req);
 	if (rc == -EACCES || rc == -EOPNOTSUPP) {
-		bnxt_hwmon_close(bp);
+		bnxt_hwmon_uninit(bp);
 		return;
 	}
 
@@ -10309,11 +10309,11 @@ static void bnxt_hwmon_open(struct bnxt *bp)
 	}
 }
 #else
-static void bnxt_hwmon_close(struct bnxt *bp)
+static void bnxt_hwmon_uninit(struct bnxt *bp)
 {
 }
 
-static void bnxt_hwmon_open(struct bnxt *bp)
+static void bnxt_hwmon_init(struct bnxt *bp)
 {
 }
 #endif
@@ -10646,7 +10646,6 @@ static int bnxt_open(struct net_device *dev)
 				bnxt_reenable_sriov(bp);
 			}
 		}
-		bnxt_hwmon_open(bp);
 	}
 
 	return rc;
@@ -10731,7 +10730,6 @@ static int bnxt_close(struct net_device *dev)
 {
 	struct bnxt *bp = netdev_priv(dev);
 
-	bnxt_hwmon_close(bp);
 	bnxt_close_nic(bp, true, true);
 	bnxt_hwrm_shutdown_link(bp);
 	bnxt_hwrm_if_change(bp, false);
@@ -12295,6 +12293,7 @@ static int bnxt_fw_init_one_p2(struct bnxt *bp)
 	if (bp->fw_cap & BNXT_FW_CAP_PTP)
 		__bnxt_hwrm_ptp_qcfg(bp);
 	bnxt_dcb_init(bp);
+	bnxt_hwmon_init(bp);
 	return 0;
 }
 
@@ -13200,6 +13199,7 @@ static void bnxt_remove_one(struct pci_dev *pdev)
 	bnxt_clear_int_mode(bp);
 	bnxt_hwrm_func_drv_unrgtr(bp);
 	bnxt_free_hwrm_resources(bp);
+	bnxt_hwmon_uninit(bp);
 	bnxt_ethtool_free(bp);
 	bnxt_dcb_free(bp);
 	kfree(bp->ptp_cfg);
@@ -13796,6 +13796,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 init_err_pci_clean:
 	bnxt_hwrm_func_drv_unrgtr(bp);
 	bnxt_free_hwrm_resources(bp);
+	bnxt_hwmon_uninit(bp);
 	bnxt_ethtool_free(bp);
 	bnxt_ptp_clear(bp);
 	kfree(bp->ptp_cfg);
-- 
2.30.1


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