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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-06 20:38:14 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-06 20:38:14 +0400
commitae045e2455429c418a418a3376301a9e5753a0a8 (patch)
treeb445bdeecd3f38aa0d0a29c9585cee49e4ccb0f1 /drivers/net/ethernet/ti/cpmac.c
parentf4f142ed4ef835709c7e6d12eaca10d190bcebed (diff)
parentd247b6ab3ce6dd43665780865ec5fa145d9ab6bd (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Highlights: 1) Steady transitioning of the BPF instructure to a generic spot so all kernel subsystems can make use of it, from Alexei Starovoitov. 2) SFC driver supports busy polling, from Alexandre Rames. 3) Take advantage of hash table in UDP multicast delivery, from David Held. 4) Lighten locking, in particular by getting rid of the LRU lists, in inet frag handling. From Florian Westphal. 5) Add support for various RFC6458 control messages in SCTP, from Geir Ola Vaagland. 6) Allow to filter bridge forwarding database dumps by device, from Jamal Hadi Salim. 7) virtio-net also now supports busy polling, from Jason Wang. 8) Some low level optimization tweaks in pktgen from Jesper Dangaard Brouer. 9) Add support for ipv6 address generation modes, so that userland can have some input into the process. From Jiri Pirko. 10) Consolidate common TCP connection request code in ipv4 and ipv6, from Octavian Purdila. 11) New ARP packet logger in netfilter, from Pablo Neira Ayuso. 12) Generic resizable RCU hash table, with intial users in netlink and nftables. From Thomas Graf. 13) Maintain a name assignment type so that userspace can see where a network device name came from (enumerated by kernel, assigned explicitly by userspace, etc.) From Tom Gundersen. 14) Automatic flow label generation on transmit in ipv6, from Tom Herbert. 15) New packet timestamping facilities from Willem de Bruijn, meant to assist in measuring latencies going into/out-of the packet scheduler, latency from TCP data transmission to ACK, etc" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits) cxgb4 : Disable recursive mailbox commands when enabling vi net: reduce USB network driver config options. tg3: Modify tg3_tso_bug() to handle multiple TX rings amd-xgbe: Perform phy connect/disconnect at dev open/stop amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask net: sun4i-emac: fix memory leak on bad packet sctp: fix possible seqlock seadlock in sctp_packet_transmit() Revert "net: phy: Set the driver when registering an MDIO bus device" cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine team: Simplify return path of team_newlink bridge: Update outdated comment on promiscuous mode net-timestamp: ACK timestamp for bytestreams net-timestamp: TCP timestamping net-timestamp: SCHED timestamp on entering packet scheduler net-timestamp: add key to disambiguate concurrent datagrams net-timestamp: move timestamp flags out of sk_flags net-timestamp: extend SCM_TIMESTAMPING ancillary data struct cxgb4i : Move stray CPL definitions to cxgb4 driver tcp: reduce spurious retransmits due to transient SACK reneging qlcnic: Initialize dcbnl_ops before register_netdev ...
Diffstat (limited to 'drivers/net/ethernet/ti/cpmac.c')
-rw-r--r--drivers/net/ethernet/ti/cpmac.c279
1 files changed, 144 insertions, 135 deletions
diff --git a/drivers/net/ethernet/ti/cpmac.c b/drivers/net/ethernet/ti/cpmac.c
index 7399a52f7c26..3809f4ec2820 100644
--- a/drivers/net/ethernet/ti/cpmac.c
+++ b/drivers/net/ethernet/ti/cpmac.c
@@ -67,42 +67,42 @@ MODULE_PARM_DESC(dumb_switch, "Assume switch is not connected to MDIO bus");
#define CPMAC_RX_CONTROL 0x0014
#define CPMAC_RX_TEARDOWN 0x0018
#define CPMAC_MBP 0x0100
-# define MBP_RXPASSCRC 0x40000000
-# define MBP_RXQOS 0x20000000
-# define MBP_RXNOCHAIN 0x10000000
-# define MBP_RXCMF 0x01000000
-# define MBP_RXSHORT 0x00800000
-# define MBP_RXCEF 0x00400000
-# define MBP_RXPROMISC 0x00200000
-# define MBP_PROMISCCHAN(channel) (((channel) & 0x7) << 16)
-# define MBP_RXBCAST 0x00002000
-# define MBP_BCASTCHAN(channel) (((channel) & 0x7) << 8)
-# define MBP_RXMCAST 0x00000020
-# define MBP_MCASTCHAN(channel) ((channel) & 0x7)
+#define MBP_RXPASSCRC 0x40000000
+#define MBP_RXQOS 0x20000000
+#define MBP_RXNOCHAIN 0x10000000
+#define MBP_RXCMF 0x01000000
+#define MBP_RXSHORT 0x00800000
+#define MBP_RXCEF 0x00400000
+#define MBP_RXPROMISC 0x00200000
+#define MBP_PROMISCCHAN(channel) (((channel) & 0x7) << 16)
+#define MBP_RXBCAST 0x00002000
+#define MBP_BCASTCHAN(channel) (((channel) & 0x7) << 8)
+#define MBP_RXMCAST 0x00000020
+#define MBP_MCASTCHAN(channel) ((channel) & 0x7)
#define CPMAC_UNICAST_ENABLE 0x0104
#define CPMAC_UNICAST_CLEAR 0x0108
#define CPMAC_MAX_LENGTH 0x010c
#define CPMAC_BUFFER_OFFSET 0x0110
#define CPMAC_MAC_CONTROL 0x0160
-# define MAC_TXPTYPE 0x00000200
-# define MAC_TXPACE 0x00000040
-# define MAC_MII 0x00000020
-# define MAC_TXFLOW 0x00000010
-# define MAC_RXFLOW 0x00000008
-# define MAC_MTEST 0x00000004
-# define MAC_LOOPBACK 0x00000002
-# define MAC_FDX 0x00000001
+#define MAC_TXPTYPE 0x00000200
+#define MAC_TXPACE 0x00000040
+#define MAC_MII 0x00000020
+#define MAC_TXFLOW 0x00000010
+#define MAC_RXFLOW 0x00000008
+#define MAC_MTEST 0x00000004
+#define MAC_LOOPBACK 0x00000002
+#define MAC_FDX 0x00000001
#define CPMAC_MAC_STATUS 0x0164
-# define MAC_STATUS_QOS 0x00000004
-# define MAC_STATUS_RXFLOW 0x00000002
-# define MAC_STATUS_TXFLOW 0x00000001
+#define MAC_STATUS_QOS 0x00000004
+#define MAC_STATUS_RXFLOW 0x00000002
+#define MAC_STATUS_TXFLOW 0x00000001
#define CPMAC_TX_INT_ENABLE 0x0178
#define CPMAC_TX_INT_CLEAR 0x017c
#define CPMAC_MAC_INT_VECTOR 0x0180
-# define MAC_INT_STATUS 0x00080000
-# define MAC_INT_HOST 0x00040000
-# define MAC_INT_RX 0x00020000
-# define MAC_INT_TX 0x00010000
+#define MAC_INT_STATUS 0x00080000
+#define MAC_INT_HOST 0x00040000
+#define MAC_INT_RX 0x00020000
+#define MAC_INT_TX 0x00010000
#define CPMAC_MAC_EOI_VECTOR 0x0184
#define CPMAC_RX_INT_ENABLE 0x0198
#define CPMAC_RX_INT_CLEAR 0x019c
@@ -118,8 +118,8 @@ MODULE_PARM_DESC(dumb_switch, "Assume switch is not connected to MDIO bus");
#define CPMAC_TX_ACK(channel) (0x0640 + (channel) * 4)
#define CPMAC_RX_ACK(channel) (0x0660 + (channel) * 4)
#define CPMAC_REG_END 0x0680
-/*
- * Rx/Tx statistics
+
+/* Rx/Tx statistics
* TODO: use some of them to fill stats in cpmac_stats()
*/
#define CPMAC_STATS_RX_GOOD 0x0200
@@ -157,24 +157,24 @@ MODULE_PARM_DESC(dumb_switch, "Assume switch is not connected to MDIO bus");
/* MDIO bus */
#define CPMAC_MDIO_VERSION 0x0000
#define CPMAC_MDIO_CONTROL 0x0004
-# define MDIOC_IDLE 0x80000000
-# define MDIOC_ENABLE 0x40000000
-# define MDIOC_PREAMBLE 0x00100000
-# define MDIOC_FAULT 0x00080000
-# define MDIOC_FAULTDETECT 0x00040000
-# define MDIOC_INTTEST 0x00020000
-# define MDIOC_CLKDIV(div) ((div) & 0xff)
+#define MDIOC_IDLE 0x80000000
+#define MDIOC_ENABLE 0x40000000
+#define MDIOC_PREAMBLE 0x00100000
+#define MDIOC_FAULT 0x00080000
+#define MDIOC_FAULTDETECT 0x00040000
+#define MDIOC_INTTEST 0x00020000
+#define MDIOC_CLKDIV(div) ((div) & 0xff)
#define CPMAC_MDIO_ALIVE 0x0008
#define CPMAC_MDIO_LINK 0x000c
#define CPMAC_MDIO_ACCESS(channel) (0x0080 + (channel) * 8)
-# define MDIO_BUSY 0x80000000
-# define MDIO_WRITE 0x40000000
-# define MDIO_REG(reg) (((reg) & 0x1f) << 21)
-# define MDIO_PHY(phy) (((phy) & 0x1f) << 16)
-# define MDIO_DATA(data) ((data) & 0xffff)
+#define MDIO_BUSY 0x80000000
+#define MDIO_WRITE 0x40000000
+#define MDIO_REG(reg) (((reg) & 0x1f) << 21)
+#define MDIO_PHY(phy) (((phy) & 0x1f) << 16)
+#define MDIO_DATA(data) ((data) & 0xffff)
#define CPMAC_MDIO_PHYSEL(channel) (0x0084 + (channel) * 8)
-# define PHYSEL_LINKSEL 0x00000040
-# define PHYSEL_LINKINT 0x00000020
+#define PHYSEL_LINKSEL 0x00000040
+#define PHYSEL_LINKINT 0x00000020
struct cpmac_desc {
u32 hw_next;
@@ -224,12 +224,12 @@ static void cpmac_dump_regs(struct net_device *dev)
{
int i;
struct cpmac_priv *priv = netdev_priv(dev);
+
for (i = 0; i < CPMAC_REG_END; i += 4) {
if (i % 16 == 0) {
if (i)
- pr_cont("\n");
- printk(KERN_DEBUG "%s: reg[%p]:", dev->name,
- priv->regs + i);
+ printk("\n");
+ printk("%s: reg[%p]:", dev->name, priv->regs + i);
}
printk(" %08x", cpmac_read(priv->regs, i));
}
@@ -239,7 +239,8 @@ static void cpmac_dump_regs(struct net_device *dev)
static void cpmac_dump_desc(struct net_device *dev, struct cpmac_desc *desc)
{
int i;
- printk(KERN_DEBUG "%s: desc[%p]:", dev->name, desc);
+
+ printk("%s: desc[%p]:", dev->name, desc);
for (i = 0; i < sizeof(*desc) / 4; i++)
printk(" %08x", ((u32 *)desc)[i]);
printk("\n");
@@ -249,6 +250,7 @@ static void cpmac_dump_all_desc(struct net_device *dev)
{
struct cpmac_priv *priv = netdev_priv(dev);
struct cpmac_desc *dump = priv->rx_head;
+
do {
cpmac_dump_desc(dev, dump);
dump = dump->next;
@@ -258,13 +260,13 @@ static void cpmac_dump_all_desc(struct net_device *dev)
static void cpmac_dump_skb(struct net_device *dev, struct sk_buff *skb)
{
int i;
- printk(KERN_DEBUG "%s: skb 0x%p, len=%d\n", dev->name, skb, skb->len);
+
+ printk("%s: skb 0x%p, len=%d\n", dev->name, skb, skb->len);
for (i = 0; i < skb->len; i++) {
if (i % 16 == 0) {
if (i)
- pr_cont("\n");
- printk(KERN_DEBUG "%s: data[%p]:", dev->name,
- skb->data + i);
+ printk("\n");
+ printk("%s: data[%p]:", dev->name, skb->data + i);
}
printk(" %02x", ((u8 *)skb->data)[i]);
}
@@ -281,6 +283,7 @@ static int cpmac_mdio_read(struct mii_bus *bus, int phy_id, int reg)
MDIO_PHY(phy_id));
while ((val = cpmac_read(bus->priv, CPMAC_MDIO_ACCESS(0))) & MDIO_BUSY)
cpu_relax();
+
return MDIO_DATA(val);
}
@@ -291,6 +294,7 @@ static int cpmac_mdio_write(struct mii_bus *bus, int phy_id,
cpu_relax();
cpmac_write(bus->priv, CPMAC_MDIO_ACCESS(0), MDIO_BUSY | MDIO_WRITE |
MDIO_REG(reg) | MDIO_PHY(phy_id) | MDIO_DATA(val));
+
return 0;
}
@@ -300,12 +304,13 @@ static int cpmac_mdio_reset(struct mii_bus *bus)
cpmac_clk = clk_get(&bus->dev, "cpmac");
if (IS_ERR(cpmac_clk)) {
- printk(KERN_ERR "unable to get cpmac clock\n");
+ pr_err("unable to get cpmac clock\n");
return -1;
}
ar7_device_reset(AR7_RESET_BIT_MDIO);
cpmac_write(bus->priv, CPMAC_MDIO_CONTROL, MDIOC_ENABLE |
MDIOC_CLKDIV(clk_get_rate(cpmac_clk) / 2200000 - 1));
+
return 0;
}
@@ -331,8 +336,7 @@ static void cpmac_set_multicast_list(struct net_device *dev)
cpmac_write(priv->regs, CPMAC_MAC_HASH_LO, 0xffffffff);
cpmac_write(priv->regs, CPMAC_MAC_HASH_HI, 0xffffffff);
} else {
- /*
- * cpmac uses some strange mac address hashing
+ /* cpmac uses some strange mac address hashing
* (not crc32)
*/
netdev_for_each_mc_addr(ha, dev) {
@@ -369,8 +373,8 @@ static struct sk_buff *cpmac_rx_one(struct cpmac_priv *priv,
cpmac_write(priv->regs, CPMAC_RX_ACK(0), (u32)desc->mapping);
if (unlikely(!desc->datalen)) {
if (netif_msg_rx_err(priv) && net_ratelimit())
- printk(KERN_WARNING "%s: rx: spurious interrupt\n",
- priv->dev->name);
+ netdev_warn(priv->dev, "rx: spurious interrupt\n");
+
return NULL;
}
@@ -390,15 +394,14 @@ static struct sk_buff *cpmac_rx_one(struct cpmac_priv *priv,
DMA_FROM_DEVICE);
desc->hw_data = (u32)desc->data_mapping;
if (unlikely(netif_msg_pktdata(priv))) {
- printk(KERN_DEBUG "%s: received packet:\n",
- priv->dev->name);
+ netdev_dbg(priv->dev, "received packet:\n");
cpmac_dump_skb(priv->dev, result);
}
} else {
if (netif_msg_rx_err(priv) && net_ratelimit())
- printk(KERN_WARNING
- "%s: low on skbs, dropping packet\n",
- priv->dev->name);
+ netdev_warn(priv->dev,
+ "low on skbs, dropping packet\n");
+
priv->dev->stats.rx_dropped++;
}
@@ -418,8 +421,8 @@ static int cpmac_poll(struct napi_struct *napi, int budget)
spin_lock(&priv->rx_lock);
if (unlikely(!priv->rx_head)) {
if (netif_msg_rx_err(priv) && net_ratelimit())
- printk(KERN_WARNING "%s: rx: polling, but no queue\n",
- priv->dev->name);
+ netdev_warn(priv->dev, "rx: polling, but no queue\n");
+
spin_unlock(&priv->rx_lock);
napi_complete(napi);
return 0;
@@ -432,15 +435,15 @@ static int cpmac_poll(struct napi_struct *napi, int budget)
if ((desc->dataflags & CPMAC_EOQ) != 0) {
/* The last update to eoq->hw_next didn't happen
- * soon enough, and the receiver stopped here.
- *Remember this descriptor so we can restart
- * the receiver after freeing some space.
- */
+ * soon enough, and the receiver stopped here.
+ * Remember this descriptor so we can restart
+ * the receiver after freeing some space.
+ */
if (unlikely(restart)) {
if (netif_msg_rx_err(priv))
- printk(KERN_ERR "%s: poll found a"
- " duplicate EOQ: %p and %p\n",
- priv->dev->name, restart, desc);
+ netdev_err(priv->dev, "poll found a"
+ " duplicate EOQ: %p and %p\n",
+ restart, desc);
goto fatal_error;
}
@@ -457,25 +460,27 @@ static int cpmac_poll(struct napi_struct *napi, int budget)
if (desc != priv->rx_head) {
/* We freed some buffers, but not the whole ring,
- * add what we did free to the rx list */
+ * add what we did free to the rx list
+ */
desc->prev->hw_next = (u32)0;
priv->rx_head->prev->hw_next = priv->rx_head->mapping;
}
/* Optimization: If we did not actually process an EOQ (perhaps because
* of quota limits), check to see if the tail of the queue has EOQ set.
- * We should immediately restart in that case so that the receiver can
- * restart and run in parallel with more packet processing.
- * This lets us handle slightly larger bursts before running
- * out of ring space (assuming dev->weight < ring_size) */
+ * We should immediately restart in that case so that the receiver can
+ * restart and run in parallel with more packet processing.
+ * This lets us handle slightly larger bursts before running
+ * out of ring space (assuming dev->weight < ring_size)
+ */
if (!restart &&
(priv->rx_head->prev->dataflags & (CPMAC_OWN|CPMAC_EOQ))
== CPMAC_EOQ &&
(priv->rx_head->dataflags & CPMAC_OWN) != 0) {
/* reset EOQ so the poll loop (above) doesn't try to
- * restart this when it eventually gets to this descriptor.
- */
+ * restart this when it eventually gets to this descriptor.
+ */
priv->rx_head->prev->dataflags &= ~CPMAC_EOQ;
restart = priv->rx_head;
}
@@ -484,15 +489,13 @@ static int cpmac_poll(struct napi_struct *napi, int budget)
priv->dev->stats.rx_errors++;
priv->dev->stats.rx_fifo_errors++;
if (netif_msg_rx_err(priv) && net_ratelimit())
- printk(KERN_WARNING "%s: rx dma ring overrun\n",
- priv->dev->name);
+ netdev_warn(priv->dev, "rx dma ring overrun\n");
if (unlikely((restart->dataflags & CPMAC_OWN) == 0)) {
if (netif_msg_drv(priv))
- printk(KERN_ERR "%s: cpmac_poll is trying to "
- "restart rx from a descriptor that's "
- "not free: %p\n",
- priv->dev->name, restart);
+ netdev_err(priv->dev, "cpmac_poll is trying "
+ "to restart rx from a descriptor "
+ "that's not free: %p\n", restart);
goto fatal_error;
}
@@ -502,11 +505,12 @@ static int cpmac_poll(struct napi_struct *napi, int budget)
priv->rx_head = desc;
spin_unlock(&priv->rx_lock);
if (unlikely(netif_msg_rx_status(priv)))
- printk(KERN_DEBUG "%s: poll processed %d packets\n",
- priv->dev->name, received);
+ netdev_dbg(priv->dev, "poll processed %d packets\n", received);
+
if (processed == 0) {
/* we ran out of packets to read,
- * revert to interrupt-driven mode */
+ * revert to interrupt-driven mode
+ */
napi_complete(napi);
cpmac_write(priv->regs, CPMAC_RX_INT_ENABLE, 1);
return 0;
@@ -516,16 +520,15 @@ static int cpmac_poll(struct napi_struct *napi, int budget)
fatal_error:
/* Something went horribly wrong.
- * Reset hardware to try to recover rather than wedging. */
-
+ * Reset hardware to try to recover rather than wedging.
+ */
if (netif_msg_drv(priv)) {
- printk(KERN_ERR "%s: cpmac_poll is confused. "
- "Resetting hardware\n", priv->dev->name);
+ netdev_err(priv->dev, "cpmac_poll is confused. "
+ "Resetting hardware\n");
cpmac_dump_all_desc(priv->dev);
- printk(KERN_DEBUG "%s: RX_PTR(0)=0x%08x RX_ACK(0)=0x%08x\n",
- priv->dev->name,
- cpmac_read(priv->regs, CPMAC_RX_PTR(0)),
- cpmac_read(priv->regs, CPMAC_RX_ACK(0)));
+ netdev_dbg(priv->dev, "RX_PTR(0)=0x%08x RX_ACK(0)=0x%08x\n",
+ cpmac_read(priv->regs, CPMAC_RX_PTR(0)),
+ cpmac_read(priv->regs, CPMAC_RX_ACK(0)));
}
spin_unlock(&priv->rx_lock);
@@ -537,6 +540,7 @@ fatal_error:
cpmac_hw_stop(priv->dev);
if (!schedule_work(&priv->reset_work))
atomic_dec(&priv->reset_pending);
+
return 0;
}
@@ -560,8 +564,8 @@ static int cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
desc = &priv->desc_ring[queue];
if (unlikely(desc->dataflags & CPMAC_OWN)) {
if (netif_msg_tx_err(priv) && net_ratelimit())
- printk(KERN_WARNING "%s: tx dma ring full\n",
- dev->name);
+ netdev_warn(dev, "tx dma ring full\n");
+
return NETDEV_TX_BUSY;
}
@@ -575,8 +579,7 @@ static int cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
desc->datalen = len;
desc->buflen = len;
if (unlikely(netif_msg_tx_queued(priv)))
- printk(KERN_DEBUG "%s: sending 0x%p, len=%d\n", dev->name, skb,
- skb->len);
+ netdev_dbg(dev, "sending 0x%p, len=%d\n", skb, skb->len);
if (unlikely(netif_msg_hw(priv)))
cpmac_dump_desc(dev, desc);
if (unlikely(netif_msg_pktdata(priv)))
@@ -602,8 +605,8 @@ static void cpmac_end_xmit(struct net_device *dev, int queue)
DMA_TO_DEVICE);
if (unlikely(netif_msg_tx_done(priv)))
- printk(KERN_DEBUG "%s: sent 0x%p, len=%d\n", dev->name,
- desc->skb, desc->skb->len);
+ netdev_dbg(dev, "sent 0x%p, len=%d\n",
+ desc->skb, desc->skb->len);
dev_kfree_skb_irq(desc->skb);
desc->skb = NULL;
@@ -611,8 +614,7 @@ static void cpmac_end_xmit(struct net_device *dev, int queue)
netif_wake_subqueue(dev, queue);
} else {
if (netif_msg_tx_err(priv) && net_ratelimit())
- printk(KERN_WARNING
- "%s: end_xmit: spurious interrupt\n", dev->name);
+ netdev_warn(dev, "end_xmit: spurious interrupt\n");
if (__netif_subqueue_stopped(dev, queue))
netif_wake_subqueue(dev, queue);
}
@@ -687,14 +689,14 @@ static void cpmac_clear_rx(struct net_device *dev)
struct cpmac_priv *priv = netdev_priv(dev);
struct cpmac_desc *desc;
int i;
+
if (unlikely(!priv->rx_head))
return;
desc = priv->rx_head;
for (i = 0; i < priv->ring_size; i++) {
if ((desc->dataflags & CPMAC_OWN) == 0) {
if (netif_msg_rx_err(priv) && net_ratelimit())
- printk(KERN_WARNING "%s: packet dropped\n",
- dev->name);
+ netdev_warn(dev, "packet dropped\n");
if (unlikely(netif_msg_hw(priv)))
cpmac_dump_desc(dev, desc);
desc->dataflags = CPMAC_OWN;
@@ -710,6 +712,7 @@ static void cpmac_clear_tx(struct net_device *dev)
{
struct cpmac_priv *priv = netdev_priv(dev);
int i;
+
if (unlikely(!priv->desc_ring))
return;
for (i = 0; i < CPMAC_QUEUES; i++) {
@@ -751,16 +754,16 @@ static void cpmac_check_status(struct net_device *dev)
if (rx_code || tx_code) {
if (netif_msg_drv(priv) && net_ratelimit()) {
/* Can't find any documentation on what these
- *error codes actually are. So just log them and hope..
+ * error codes actually are. So just log them and hope..
*/
if (rx_code)
- printk(KERN_WARNING "%s: host error %d on rx "
- "channel %d (macstatus %08x), resetting\n",
- dev->name, rx_code, rx_channel, macstatus);
+ netdev_warn(dev, "host error %d on rx "
+ "channel %d (macstatus %08x), resetting\n",
+ rx_code, rx_channel, macstatus);
if (tx_code)
- printk(KERN_WARNING "%s: host error %d on tx "
- "channel %d (macstatus %08x), resetting\n",
- dev->name, tx_code, tx_channel, macstatus);
+ netdev_warn(dev, "host error %d on tx "
+ "channel %d (macstatus %08x), resetting\n",
+ tx_code, tx_channel, macstatus);
}
netif_tx_stop_all_queues(dev);
@@ -785,8 +788,7 @@ static irqreturn_t cpmac_irq(int irq, void *dev_id)
status = cpmac_read(priv->regs, CPMAC_MAC_INT_VECTOR);
if (unlikely(netif_msg_intr(priv)))
- printk(KERN_DEBUG "%s: interrupt status: 0x%08x\n", dev->name,
- status);
+ netdev_dbg(dev, "interrupt status: 0x%08x\n", status);
if (status & MAC_INT_TX)
cpmac_end_xmit(dev, (status & 7));
@@ -815,7 +817,7 @@ static void cpmac_tx_timeout(struct net_device *dev)
dev->stats.tx_errors++;
spin_unlock(&priv->lock);
if (netif_msg_tx_err(priv) && net_ratelimit())
- printk(KERN_WARNING "%s: transmit timeout\n", dev->name);
+ netdev_warn(dev, "transmit timeout\n");
atomic_inc(&priv->reset_pending);
barrier();
@@ -829,6 +831,7 @@ static void cpmac_tx_timeout(struct net_device *dev)
static int cpmac_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct cpmac_priv *priv = netdev_priv(dev);
+
if (!(netif_running(dev)))
return -EINVAL;
if (!priv->phy)
@@ -884,6 +887,7 @@ static int cpmac_set_ringparam(struct net_device *dev,
if (netif_running(dev))
return -EBUSY;
priv->ring_size = ring->rx_pending;
+
return 0;
}
@@ -951,8 +955,8 @@ static int cpmac_open(struct net_device *dev)
mem = platform_get_resource_byname(priv->pdev, IORESOURCE_MEM, "regs");
if (!request_mem_region(mem->start, resource_size(mem), dev->name)) {
if (netif_msg_drv(priv))
- printk(KERN_ERR "%s: failed to request registers\n",
- dev->name);
+ netdev_err(dev, "failed to request registers\n");
+
res = -ENXIO;
goto fail_reserve;
}
@@ -960,8 +964,8 @@ static int cpmac_open(struct net_device *dev)
priv->regs = ioremap(mem->start, resource_size(mem));
if (!priv->regs) {
if (netif_msg_drv(priv))
- printk(KERN_ERR "%s: failed to remap registers\n",
- dev->name);
+ netdev_err(dev, "failed to remap registers\n");
+
res = -ENXIO;
goto fail_remap;
}
@@ -1003,8 +1007,8 @@ static int cpmac_open(struct net_device *dev)
res = request_irq(dev->irq, cpmac_irq, IRQF_SHARED, dev->name, dev);
if (res) {
if (netif_msg_drv(priv))
- printk(KERN_ERR "%s: failed to obtain irq\n",
- dev->name);
+ netdev_err(dev, "failed to obtain irq\n");
+
goto fail_irq;
}
@@ -1077,6 +1081,7 @@ static int cpmac_stop(struct net_device *dev)
dma_free_coherent(&dev->dev, sizeof(struct cpmac_desc) *
(CPMAC_QUEUES + priv->ring_size),
priv->desc_ring, priv->dma_ring);
+
return 0;
}
@@ -1121,7 +1126,7 @@ static int cpmac_probe(struct platform_device *pdev)
if (phy_id == PHY_MAX_ADDR) {
dev_err(&pdev->dev, "no PHY present, falling back "
- "to switch on MDIO bus 0\n");
+ "to switch on MDIO bus 0\n");
strncpy(mdio_bus_id, "fixed-0", MII_BUS_ID_SIZE); /* fixed phys bus */
phy_id = pdev->id;
}
@@ -1137,7 +1142,7 @@ static int cpmac_probe(struct platform_device *pdev)
mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
if (!mem) {
rc = -ENODEV;
- goto fail;
+ goto out;
}
dev->irq = platform_get_irq_byname(pdev, "irq");
@@ -1162,44 +1167,48 @@ static int cpmac_probe(struct platform_device *pdev)
if (IS_ERR(priv->phy)) {
if (netif_msg_drv(priv))
- printk(KERN_ERR "%s: Could not attach to PHY\n",
- dev->name);
+ dev_err(&pdev->dev, "Could not attach to PHY\n");
+
rc = PTR_ERR(priv->phy);
- goto fail;
+ goto out;
}
rc = register_netdev(dev);
if (rc) {
- printk(KERN_ERR "cpmac: error %i registering device %s\n", rc,
- dev->name);
+ dev_err(&pdev->dev, "Could not register net device\n");
goto fail;
}
if (netif_msg_probe(priv)) {
- printk(KERN_INFO
- "cpmac: device %s (regs: %p, irq: %d, phy: %s, "
- "mac: %pM)\n", dev->name, (void *)mem->start, dev->irq,
- priv->phy_name, dev->dev_addr);
+ dev_info(&pdev->dev, "regs: %p, irq: %d, phy: %s, "
+ "mac: %pM\n", (void *)mem->start, dev->irq,
+ priv->phy_name, dev->dev_addr);
}
+
return 0;
fail:
free_netdev(dev);
+out:
return rc;
}
static int cpmac_remove(struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
+
unregister_netdev(dev);
free_netdev(dev);
+
return 0;
}
static struct platform_driver cpmac_driver = {
- .driver.name = "cpmac",
- .driver.owner = THIS_MODULE,
- .probe = cpmac_probe,
+ .driver = {
+ .name = "cpmac",
+ .owner = THIS_MODULE,
+ },
+ .probe = cpmac_probe,
.remove = cpmac_remove,
};
@@ -1221,7 +1230,7 @@ int cpmac_init(void)
cpmac_mii->priv = ioremap(AR7_REGS_MDIO, 256);
if (!cpmac_mii->priv) {
- printk(KERN_ERR "Can't ioremap mdio registers\n");
+ pr_err("Can't ioremap mdio registers\n");
res = -ENXIO;
goto fail_alloc;
}