[PATCH 07/10] atl1: use netif_msg

From: Jay Cliburn
Date: Sat Feb 02 2008 - 20:54:04 EST

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Use netif_msg_* for console messages emitted by the driver. Add a
parameter to allow control of messaging at driver startup, and also
add the ability to control it with ethtool.

Signed-off-by: Jay Cliburn <jacliburn@xxxxxxxxxxxxx>
Acked-by: Chris Snook <csnook@xxxxxxxxxx>
---
drivers/net/atlx/atl1.c | 155 +++++++++++++++++++++++++++++++++--------------
drivers/net/atlx/atl1.h | 2 +-
2 files changed, 111 insertions(+), 46 deletions(-)

diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c
index 9929822..51eca23 100644
--- a/drivers/net/atlx/atl1.c
+++ b/drivers/net/atlx/atl1.c
@@ -100,6 +100,13 @@ static const struct pci_device_id atl1_pci_tbl[] = {
};
MODULE_DEVICE_TABLE(pci, atl1_pci_tbl);

+static const u32 atl1_default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE |
+ NETIF_MSG_LINK | NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP;
+
+static int debug = -1;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Message level (0=none,...,16=all)");
+
/*
* atl1_sw_init - Initialize general software structures (struct atl1_adapter)
* @adapter: board private structure to initialize
@@ -217,7 +224,9 @@ s32 atl1_setup_ring_resources(struct atl1_adapter *adapter)
size = sizeof(struct atl1_buffer) * (tpd_ring->count + rfd_ring->count);
tpd_ring->buffer_info = kzalloc(size, GFP_KERNEL);
if (unlikely(!tpd_ring->buffer_info)) {
- dev_err(&pdev->dev, "kzalloc failed , size = D%d\n", size);
+ if (netif_msg_drv(adapter))
+ dev_err(&pdev->dev, "kzalloc failed , size = D%d\n",
+ size);
goto err_nomem;
}
rfd_ring->buffer_info =
@@ -239,7 +248,8 @@ s32 atl1_setup_ring_resources(struct atl1_adapter *adapter)
ring_header->desc = pci_alloc_consistent(pdev, ring_header->size,
&ring_header->dma);
if (unlikely(!ring_header->desc)) {
- dev_err(&pdev->dev, "pci_alloc_consistent failed\n");
+ if (netif_msg_drv(adapter))
+ dev_err(&pdev->dev, "pci_alloc_consistent failed\n");
goto err_nomem;
}

@@ -472,7 +482,8 @@ static u32 atl1_check_link(struct atl1_adapter *adapter)
/* link down */
if (netif_carrier_ok(netdev)) {
/* old link state: Up */
- dev_info(&adapter->pdev->dev, "link is down\n");
+ if (netif_msg_link(adapter))
+ dev_info(&adapter->pdev->dev, "link is down\n");
adapter->link_speed = SPEED_0;
netif_carrier_off(netdev);
netif_stop_queue(netdev);
@@ -515,11 +526,12 @@ static u32 atl1_check_link(struct atl1_adapter *adapter)
adapter->link_speed = speed;
adapter->link_duplex = duplex;
atl1_setup_mac_ctrl(adapter);
- dev_info(&adapter->pdev->dev,
- "%s link is up %d Mbps %s\n",
- netdev->name, adapter->link_speed,
- adapter->link_duplex == FULL_DUPLEX ?
- "full duplex" : "half duplex");
+ if (netif_msg_link(adapter))
+ dev_info(&adapter->pdev->dev,
+ "%s link is up %d Mbps %s\n",
+ netdev->name, adapter->link_speed,
+ adapter->link_duplex == FULL_DUPLEX ?
+ "full duplex" : "half duplex");
}
if (!netif_carrier_ok(netdev)) {
/* Link down -> Up */
@@ -583,7 +595,8 @@ static int atl1_change_mtu(struct net_device *netdev, int new_mtu)

if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) ||
(max_frame > MAX_JUMBO_FRAME_SIZE)) {
- dev_warn(&adapter->pdev->dev, "invalid MTU setting\n");
+ if (netif_msg_link(adapter))
+ dev_warn(&adapter->pdev->dev, "invalid MTU setting\n");
return -EINVAL;
}

@@ -997,8 +1010,9 @@ static void atl1_rx_checksum(struct atl1_adapter *adapter,
if (rrd->err_flg & (ERR_FLAG_CRC | ERR_FLAG_TRUNC |
ERR_FLAG_CODE | ERR_FLAG_OV)) {
adapter->hw_csum_err++;
- dev_printk(KERN_DEBUG, &pdev->dev,
- "rx checksum error\n");
+ if (netif_msg_rx_err(adapter))
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "rx checksum error\n");
return;
}
}
@@ -1017,9 +1031,10 @@ static void atl1_rx_checksum(struct atl1_adapter *adapter,
}

/* IPv4, but hardware thinks its checksum is wrong */
- dev_printk(KERN_DEBUG, &pdev->dev,
- "hw csum wrong, pkt_flag:%x, err_flag:%x\n",
- rrd->pkt_flg, rrd->err_flg);
+ if (netif_msg_rx_err(adapter))
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "hw csum wrong, pkt_flag:%x, err_flag:%x\n",
+ rrd->pkt_flg, rrd->err_flg);
skb->ip_summed = CHECKSUM_COMPLETE;
skb->csum = htons(rrd->xsz.xsum_sz.rx_chksum);
adapter->hw_csum_err++;
@@ -1133,14 +1148,17 @@ chk_rrd:
/* rrd seems to be bad */
if (unlikely(i-- > 0)) {
/* rrd may not be DMAed completely */
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "incomplete RRD DMA transfer\n");
+ if (netif_msg_rx_err(adapter))
+ dev_printk(KERN_DEBUG,
+ &adapter->pdev->dev,
+ "unexpected RRD count\n");
udelay(1);
goto chk_rrd;
}
/* bad rrd */
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "bad RRD\n");
+ if (netif_msg_rx_err(adapter))
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "bad RRD\n");
/* see if update RFD index */
if (rrd->num_buf > 1)
atl1_update_rfd_index(adapter, rrd);
@@ -1351,8 +1369,9 @@ static int atl1_tx_csum(struct atl1_adapter *adapter, struct sk_buff *skb,
cso = css + (u8) skb->csum_offset;
if (unlikely(css & 0x1)) {
/* L1 hardware requires an even number here */
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "payload offset not an even number\n");
+ if (netif_msg_tx_err(adapter))
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "payload offset not an even number\n");
return -1;
}
ptpd->word3 |= (css & TPD_PLOADOFFSET_MASK) <<
@@ -1573,7 +1592,9 @@ static int atl1_xmit_frame(struct sk_buff *skb, struct net_device *netdev)

if (!spin_trylock_irqsave(&adapter->lock, flags)) {
/* Can't get lock - tell upper layer to requeue */
- dev_printk(KERN_DEBUG, &adapter->pdev->dev, "tx locked\n");
+ if (netif_msg_tx_queued(adapter))
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "tx locked\n");
return NETDEV_TX_LOCKED;
}

@@ -1581,7 +1602,9 @@ static int atl1_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
/* not enough descriptors */
netif_stop_queue(netdev);
spin_unlock_irqrestore(&adapter->lock, flags);
- dev_printk(KERN_DEBUG, &adapter->pdev->dev, "tx busy\n");
+ if (netif_msg_tx_queued(adapter))
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "tx busy\n");
return NETDEV_TX_BUSY;
}

@@ -1657,8 +1680,9 @@ static irqreturn_t atl1_intr(int irq, void *data)

/* check if PCIE PHY Link down */
if (status & ISR_PHY_LINKDOWN) {
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "pcie phy link down %x\n", status);
+ if (netif_msg_intr(adapter))
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "pcie phy link down %x\n", status);
if (netif_running(adapter->netdev)) { /* reset MAC */
iowrite32(0, adapter->hw.hw_addr + REG_IMR);
schedule_work(&adapter->pcie_dma_to_rst_task);
@@ -1668,9 +1692,10 @@ static irqreturn_t atl1_intr(int irq, void *data)

/* check if DMA read/write error ? */
if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "pcie DMA r/w error (status = 0x%x)\n",
- status);
+ if (netif_msg_intr(adapter))
+ dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+ "pcie DMA r/w error (status = 0x%x)\n",
+ status);
iowrite32(0, adapter->hw.hw_addr + REG_IMR);
schedule_work(&adapter->pcie_dma_to_rst_task);
return IRQ_HANDLED;
@@ -1693,8 +1718,11 @@ static irqreturn_t atl1_intr(int irq, void *data)
if (status & (ISR_RXF_OV | ISR_RFD_UNRUN |
ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
ISR_HOST_RRD_OV))
- dev_printk(KERN_DEBUG, &adapter->pdev->dev,
- "rx exception, ISR = 0x%x\n", status);
+ if (netif_msg_intr(adapter))
+ dev_printk(KERN_DEBUG,
+ &adapter->pdev->dev,
+ "rx exception, ISR = 0x%x\n",
+ status);
atl1_intr_rx(adapter);
}

@@ -1791,8 +1819,9 @@ s32 atl1_up(struct atl1_adapter *adapter)

err = pci_enable_msi(adapter->pdev);
if (err) {
- dev_info(&adapter->pdev->dev,
- "Unable to enable MSI: %d\n", err);
+ if (netif_msg_ifup(adapter))
+ dev_info(&adapter->pdev->dev,
+ "Unable to enable MSI: %d\n", err);
irq_flags |= IRQF_SHARED;
}

@@ -2061,6 +2090,7 @@ static int __devinit atl1_probe(struct pci_dev *pdev,
adapter->netdev = netdev;
adapter->pdev = pdev;
adapter->hw.back = adapter;
+ adapter->msg_enable = netif_msg_init(debug, atl1_default_msg);

adapter->hw.hw_addr = pci_iomap(pdev, 0, 0);
if (!adapter->hw.hw_addr) {
@@ -2070,7 +2100,8 @@ static int __devinit atl1_probe(struct pci_dev *pdev,
/* get device revision number */
adapter->hw.dev_rev = ioread16(adapter->hw.hw_addr +
(REG_MASTER_CTRL + 2));
- dev_info(&pdev->dev, "version %s\n", ATLX_DRIVER_VERSION);
+ if (netif_msg_probe(adapter))
+ dev_info(&pdev->dev, "version %s\n", ATLX_DRIVER_VERSION);

/* set default ring resource counts */
adapter->rfd_ring.count = adapter->rrd_ring.count = ATL1_DEFAULT_RFD;
@@ -2390,7 +2421,9 @@ static int atl1_set_settings(struct net_device *netdev,
u16 old_media_type = hw->media_type;

if (netif_running(adapter->netdev)) {
- dev_dbg(&adapter->pdev->dev, "ethtool shutting down adapter\n");
+ if (netif_msg_link(adapter))
+ dev_dbg(&adapter->pdev->dev,
+ "ethtool shutting down adapter\n");
atl1_down(adapter);
}

@@ -2399,8 +2432,9 @@ static int atl1_set_settings(struct net_device *netdev,
else {
if (ecmd->speed == SPEED_1000) {
if (ecmd->duplex != DUPLEX_FULL) {
- dev_warn(&adapter->pdev->dev,
- "can't force to 1000M half duplex\n");
+ if (netif_msg_link(adapter))
+ dev_warn(&adapter->pdev->dev,
+ "1000M half is invalid\n");
ret_val = -EINVAL;
goto exit_sset;
}
@@ -2438,8 +2472,9 @@ static int atl1_set_settings(struct net_device *netdev,
}
if (atl1_phy_setup_autoneg_adv(hw)) {
ret_val = -EINVAL;
- dev_warn(&adapter->pdev->dev,
- "invalid ethtool speed/duplex setting\n");
+ if (netif_msg_link(adapter))
+ dev_warn(&adapter->pdev->dev,
+ "invalid ethtool speed/duplex setting\n");
goto exit_sset;
}
if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
@@ -2471,10 +2506,14 @@ exit_sset:
hw->media_type = old_media_type;

if (netif_running(adapter->netdev)) {
- dev_dbg(&adapter->pdev->dev, "ethtool starting adapter\n");
+ if (netif_msg_link(adapter))
+ dev_dbg(&adapter->pdev->dev,
+ "ethtool starting adapter\n");
atl1_up(adapter);
} else if (!ret_val) {
- dev_dbg(&adapter->pdev->dev, "ethtool resetting adapter\n");
+ if (netif_msg_link(adapter))
+ dev_dbg(&adapter->pdev->dev,
+ "ethtool resetting adapter\n");
atl1_reset(adapter);
}
return ret_val;
@@ -2531,6 +2570,18 @@ static int atl1_set_wol(struct net_device *netdev,
return 0;
}

+static u32 atl1_get_msglevel(struct net_device *netdev)
+{
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ return adapter->msg_enable;
+}
+
+static void atl1_set_msglevel(struct net_device *netdev, u32 value)
+{
+ struct atl1_adapter *adapter = netdev_priv(netdev);
+ adapter->msg_enable = value;
+}
+
static int atl1_get_regs_len(struct net_device *netdev)
{
return ATL1_REG_COUNT * sizeof(u32);
@@ -2772,6 +2823,8 @@ const struct ethtool_ops atl1_ethtool_ops = {
.get_drvinfo = atl1_get_drvinfo,
.get_wol = atl1_get_wol,
.set_wol = atl1_set_wol,
+ .get_msglevel = atl1_get_msglevel,
+ .set_msglevel = atl1_set_msglevel,
.get_regs_len = atl1_get_regs_len,
.get_regs = atl1_get_regs,
.get_ringparam = atl1_get_ringparam,
@@ -2797,6 +2850,7 @@ const struct ethtool_ops atl1_ethtool_ops = {
s32 atl1_reset_hw(struct atl1_hw *hw)
{
struct pci_dev *pdev = hw->back->pdev;
+ struct atl1_adapter *adapter = hw->back;
u32 icr;
int i;

@@ -2836,7 +2890,8 @@ s32 atl1_reset_hw(struct atl1_hw *hw)
}

if (icr) {
- dev_dbg(&pdev->dev, "ICR = 0x%x\n", icr);
+ if (netif_msg_hw(adapter))
+ dev_dbg(&pdev->dev, "ICR = 0x%x\n", icr);
return icr;
}

@@ -3205,6 +3260,7 @@ s32 atl1_phy_enter_power_saving(struct atl1_hw *hw)
static s32 atl1_phy_reset(struct atl1_hw *hw)
{
struct pci_dev *pdev = hw->back->pdev;
+ struct atl1_adapter *adapter = hw->back;
s32 ret_val;
u16 phy_data;

@@ -3237,7 +3293,8 @@ static s32 atl1_phy_reset(struct atl1_hw *hw)
u32 val;
int i;
/* pcie serdes link may be down! */
- dev_dbg(&pdev->dev, "pcie phy link down\n");
+ if (netif_msg_hw(adapter))
+ dev_dbg(&pdev->dev, "pcie phy link down\n");

for (i = 0; i < 25; i++) {
msleep(1);
@@ -3247,7 +3304,9 @@ static s32 atl1_phy_reset(struct atl1_hw *hw)
}

if ((val & (MDIO_START | MDIO_BUSY)) != 0) {
- dev_warn(&pdev->dev, "pcie link down at least 25ms\n");
+ if (netif_msg_hw(adapter))
+ dev_warn(&pdev->dev,
+ "pcie link down at least 25ms\n");
return ret_val;
}
}
@@ -3338,6 +3397,7 @@ s32 atl1_phy_setup_autoneg_adv(struct atl1_hw *hw)
static s32 atl1_setup_link(struct atl1_hw *hw)
{
struct pci_dev *pdev = hw->back->pdev;
+ struct atl1_adapter *adapter = hw->back;
s32 ret_val;

/*
@@ -3348,13 +3408,16 @@ static s32 atl1_setup_link(struct atl1_hw *hw)
*/
ret_val = atl1_phy_setup_autoneg_adv(hw);
if (ret_val) {
- dev_dbg(&pdev->dev, "error setting up autonegotiation\n");
+ if (netif_msg_link(adapter))
+ dev_dbg(&pdev->dev,
+ "error setting up autonegotiation\n");
return ret_val;
}
/* SW.Reset , En-Auto-Neg if needed */
ret_val = atl1_phy_reset(hw);
if (ret_val) {
- dev_dbg(&pdev->dev, "error resetting phy\n");
+ if (netif_msg_link(adapter))
+ dev_dbg(&pdev->dev, "error resetting phy\n");
return ret_val;
}
hw->phy_configured = true;
@@ -3429,6 +3492,7 @@ s32 atl1_init_hw(struct atl1_hw *hw)
s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex)
{
struct pci_dev *pdev = hw->back->pdev;
+ struct atl1_adapter *adapter = hw->back;
s32 ret_val;
u16 phy_data;

@@ -3451,7 +3515,8 @@ s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex)
*speed = SPEED_10;
break;
default:
- dev_dbg(&pdev->dev, "error getting speed\n");
+ if (netif_msg_hw(adapter))
+ dev_dbg(&pdev->dev, "error getting speed\n");
return ATLX_ERR_PHY_SPEED;
break;
}
diff --git a/drivers/net/atlx/atl1.h b/drivers/net/atlx/atl1.h
index 4d3d65b..12ec916 100644
--- a/drivers/net/atlx/atl1.h
+++ b/drivers/net/atlx/atl1.h
@@ -794,7 +794,7 @@ struct atl1_adapter {
struct atl1_rrd_ring rrd_ring;
u64 hw_csum_err;
u64 hw_csum_good;
-
+ u32 msg_enable;
u16 imt; /* interrupt moderator timer (2us resolution) */
u16 ict; /* interrupt clear timer (2us resolution */
struct mii_if_info mii; /* MII interface info */
--
1.5.3.8

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Next message: Jay Cliburn: "[PATCH 09/10] atl1: make functions static"
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