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Message-ID: <20150522213220.23869.77600.stgit@tlendack-t1.amdoffice.net>
Date: Fri, 22 May 2015 16:32:21 -0500
From: Tom Lendacky <thomas.lendacky@....com>
To: <netdev@...r.kernel.org>
CC: David Miller <davem@...emloft.net>
Subject: [PATCH net-next v1 3/3] amd-xgbe: Add more netif_dbg output to the
driver
Change more netdev_dbg statements over to netif_dbg and add some new
netif_dbg statements to the driver.
Signed-off-by: Tom Lendacky <thomas.lendacky@....com>
---
drivers/net/ethernet/amd/xgbe/xgbe-mdio.c | 68 ++++++++++++++++++++++++++---
1 file changed, 62 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index 8b86d94..9088c3a 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -185,8 +185,8 @@ static void xgbe_serdes_complete_ratechange(struct xgbe_prv_data *pdata)
goto rx_reset;
}
- netdev_dbg(pdata->netdev, "SerDes rx/tx not ready (%#hx)\n",
- status);
+ netif_dbg(pdata, link, pdata->netdev, "SerDes rx/tx not ready (%#hx)\n",
+ status);
rx_reset:
/* Perform Rx reset for the DFE changes */
@@ -238,6 +238,8 @@ static void xgbe_xgmii_mode(struct xgbe_prv_data *pdata)
pdata->serdes_dfe_tap_ena[XGBE_SPEED_10000]);
xgbe_serdes_complete_ratechange(pdata);
+
+ netif_dbg(pdata, link, pdata->netdev, "10GbE KR mode set\n");
}
static void xgbe_gmii_2500_mode(struct xgbe_prv_data *pdata)
@@ -284,6 +286,8 @@ static void xgbe_gmii_2500_mode(struct xgbe_prv_data *pdata)
pdata->serdes_dfe_tap_ena[XGBE_SPEED_2500]);
xgbe_serdes_complete_ratechange(pdata);
+
+ netif_dbg(pdata, link, pdata->netdev, "2.5GbE KX mode set\n");
}
static void xgbe_gmii_mode(struct xgbe_prv_data *pdata)
@@ -330,6 +334,8 @@ static void xgbe_gmii_mode(struct xgbe_prv_data *pdata)
pdata->serdes_dfe_tap_ena[XGBE_SPEED_1000]);
xgbe_serdes_complete_ratechange(pdata);
+
+ netif_dbg(pdata, link, pdata->netdev, "1GbE KX mode set\n");
}
static void xgbe_cur_mode(struct xgbe_prv_data *pdata,
@@ -434,11 +440,15 @@ static void xgbe_set_an(struct xgbe_prv_data *pdata, bool enable, bool restart)
static void xgbe_restart_an(struct xgbe_prv_data *pdata)
{
xgbe_set_an(pdata, true, true);
+
+ netif_dbg(pdata, link, pdata->netdev, "AN enabled/restarted\n");
}
static void xgbe_disable_an(struct xgbe_prv_data *pdata)
{
xgbe_set_an(pdata, false, false);
+
+ netif_dbg(pdata, link, pdata->netdev, "AN disabled\n");
}
static enum xgbe_an xgbe_an_tx_training(struct xgbe_prv_data *pdata,
@@ -473,6 +483,9 @@ static enum xgbe_an xgbe_an_tx_training(struct xgbe_prv_data *pdata,
reg);
XSIR0_IOWRITE_BITS(pdata, SIR0_KR_RT_1, RESET, 0);
+
+ netif_dbg(pdata, link, pdata->netdev,
+ "KR training initiated\n");
}
return XGBE_AN_PAGE_RECEIVED;
@@ -551,6 +564,9 @@ static enum xgbe_an xgbe_an_page_received(struct xgbe_prv_data *pdata)
pdata->kx_state = XGBE_RX_BPA;
pdata->an_start = jiffies;
+
+ netif_dbg(pdata, link, pdata->netdev,
+ "AN timed out, resetting state\n");
}
}
@@ -608,6 +624,8 @@ static irqreturn_t xgbe_an_isr(int irq, void *data)
{
struct xgbe_prv_data *pdata = (struct xgbe_prv_data *)data;
+ netif_dbg(pdata, intr, pdata->netdev, "AN interrupt received\n");
+
/* Interrupt reason must be read and cleared outside of IRQ context */
disable_irq_nosync(pdata->an_irq);
@@ -629,6 +647,26 @@ static void xgbe_an_irq_work(struct work_struct *work)
queue_work(pdata->an_workqueue, &pdata->an_work);
}
+static const char *xgbe_state_as_string(enum xgbe_an state)
+{
+ switch (state) {
+ case XGBE_AN_READY:
+ return "Ready";
+ case XGBE_AN_PAGE_RECEIVED:
+ return "Page-Received";
+ case XGBE_AN_INCOMPAT_LINK:
+ return "Incompatible-Link";
+ case XGBE_AN_COMPLETE:
+ return "Complete";
+ case XGBE_AN_NO_LINK:
+ return "No-Link";
+ case XGBE_AN_ERROR:
+ return "Error";
+ default:
+ return "Undefined";
+ }
+}
+
static void xgbe_an_state_machine(struct work_struct *work)
{
struct xgbe_prv_data *pdata = container_of(work,
@@ -666,6 +704,9 @@ next_int:
pdata->an_result = pdata->an_state;
again:
+ netif_dbg(pdata, link, pdata->netdev, "AN %s\n",
+ xgbe_state_as_string(pdata->an_state));
+
cur_state = pdata->an_state;
switch (pdata->an_state) {
@@ -686,9 +727,9 @@ again:
case XGBE_AN_COMPLETE:
pdata->parallel_detect = pdata->an_supported ? 0 : 1;
- netdev_dbg(pdata->netdev, "%s successful\n",
- pdata->an_supported ? "Auto negotiation"
- : "Parallel detection");
+ netif_dbg(pdata, link, pdata->netdev, "%s successful\n",
+ pdata->an_supported ? "Auto negotiation"
+ : "Parallel detection");
break;
case XGBE_AN_NO_LINK:
@@ -716,6 +757,9 @@ again:
pdata->kr_state = XGBE_RX_BPA;
pdata->kx_state = XGBE_RX_BPA;
pdata->an_start = 0;
+
+ netif_dbg(pdata, link, pdata->netdev, "AN result: %s\n",
+ xgbe_state_as_string(pdata->an_result));
}
if (cur_state != pdata->an_state)
@@ -774,6 +818,8 @@ static void xgbe_an_init(struct xgbe_prv_data *pdata)
reg &= ~XGBE_XNP_NP_EXCHANGE;
XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE, reg);
+
+ netif_dbg(pdata, link, pdata->netdev, "AN initialized\n");
}
static const char *xgbe_phy_fc_string(struct xgbe_prv_data *pdata)
@@ -858,6 +904,8 @@ static void xgbe_phy_adjust_link(struct xgbe_prv_data *pdata)
static int xgbe_phy_config_fixed(struct xgbe_prv_data *pdata)
{
+ netif_dbg(pdata, link, pdata->netdev, "fixed PHY configuration\n");
+
/* Disable auto-negotiation */
xgbe_disable_an(pdata);
@@ -891,6 +939,8 @@ static int __xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
if (pdata->phy.autoneg != AUTONEG_ENABLE)
return xgbe_phy_config_fixed(pdata);
+ netif_dbg(pdata, link, pdata->netdev, "AN PHY configuration\n");
+
/* Disable auto-negotiation interrupt */
disable_irq(pdata->an_irq);
@@ -955,8 +1005,10 @@ static void xgbe_check_link_timeout(struct xgbe_prv_data *pdata)
unsigned long link_timeout;
link_timeout = pdata->link_check + (XGBE_LINK_TIMEOUT * HZ);
- if (time_after(jiffies, link_timeout))
+ if (time_after(jiffies, link_timeout)) {
+ netif_dbg(pdata, link, pdata->netdev, "AN link timeout\n");
xgbe_phy_config_aneg(pdata);
+ }
}
static void xgbe_phy_status_force(struct xgbe_prv_data *pdata)
@@ -1116,6 +1168,8 @@ adjust_link:
static void xgbe_phy_stop(struct xgbe_prv_data *pdata)
{
+ netif_dbg(pdata, link, pdata->netdev, "stopping PHY\n");
+
/* Disable auto-negotiation */
xgbe_disable_an(pdata);
@@ -1136,6 +1190,8 @@ static int xgbe_phy_start(struct xgbe_prv_data *pdata)
struct net_device *netdev = pdata->netdev;
int ret;
+ netif_dbg(pdata, link, pdata->netdev, "starting PHY\n");
+
ret = devm_request_irq(pdata->dev, pdata->an_irq,
xgbe_an_isr, 0, pdata->an_name,
pdata);
--
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