linux-kernel - [PATCH net-next 1/1] net: stmmac: Add PCI bus info to ethtool driver query output

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Date:   Wed, 17 Feb 2021 17:57:05 +0800
From:   Wong Vee Khee <vee.khee.wong@...el.com>
To:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc:     netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next 1/1] net: stmmac: Add PCI bus info to ethtool driver query output

This patch populates the PCI bus info in the ethtool driver query data.

Users will be able to view PCI bus info using 'ethtool -i <interface>'.

Signed-off-by: Wong Vee Khee <vee.khee.wong@...el.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c    | 1 +
 drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 4 ++++
 include/linux/stmmac.h                               | 1 +
 3 files changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index 1c9c67b641a2..751dfdeec41c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -236,6 +236,7 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
 	int ret;
 	int i;
 
+	plat->pdev = pdev;
 	plat->phy_addr = -1;
 	plat->clk_csr = 5;
 	plat->has_gmac = 0;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index 9e54f953634b..c5642985ef95 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -268,6 +268,10 @@ static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
 		strlcpy(info->driver, MAC100_ETHTOOL_NAME,
 			sizeof(info->driver));
 
+	if (priv->plat->pdev) {
+		strlcpy(info->bus_info, pci_name(priv->plat->pdev),
+			sizeof(info->bus_info));
+	}
 	strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
 }
 
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 15ca6b4167cc..a302982de2d7 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -202,5 +202,6 @@ struct plat_stmmacenet_data {
 	bool vlan_fail_q_en;
 	u8 vlan_fail_q;
 	unsigned int eee_usecs_rate;
+	struct pci_dev *pdev;
 };
 #endif
-- 
2.17.0