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提交 35190506 编写于 作者: D Dean Nelson 提交者： Tony Luck
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[IA64] run rest drivers/misc/sgi-xp through scripts/Lindent 

Ran patches through scripts/Lindent (part 2).
Signed-off-by: NDean Nelson <dcn@sgi.com>
Signed-off-by: NTony Luck <tony.luck@intel.com>
上级 4a3ad2dd
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Showing with 322 addition and 506 deletion
drivers/misc/sgi-xp/xpc_channel.c
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drivers/misc/sgi-xp/xpc_main.c
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drivers/misc/sgi-xp/xpnet.c
浏览文件 @ 35190506
......@@ -6,7 +6,6 @@
* Copyright (C) 1999-2008 Silicon Graphics, Inc. All rights reserved.
*/
/*
* Cross Partition Network Interface (XPNET) support
*
......@@ -21,7 +20,6 @@
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
......@@ -40,7 +38,6 @@
#include <asm/atomic.h>
#include "xp.h"
/*
* The message payload transferred by XPC.
*
......@@ -79,7 +76,6 @@ struct xpnet_message {
#define XPNET_MSG_ALIGNED_SIZE (L1_CACHE_ALIGN(XPNET_MSG_SIZE))
#define XPNET_MSG_NENTRIES (PAGE_SIZE / XPNET_MSG_ALIGNED_SIZE)
#define XPNET_MAX_KTHREADS (XPNET_MSG_NENTRIES + 1)
#define XPNET_MAX_IDLE_KTHREADS (XPNET_MSG_NENTRIES + 1)
......@@ -91,9 +87,9 @@ struct xpnet_message {
#define XPNET_VERSION_MAJOR(_v) ((_v) >> 4)
#define XPNET_VERSION_MINOR(_v) ((_v) & 0xf)
#define XPNET_VERSION _XPNET_VERSION(1,0) /* version 1.0 */
#define XPNET_VERSION_EMBED _XPNET_VERSION(1,1) /* version 1.1 */
#define XPNET_MAGIC 0x88786984 /* "XNET" */
#define XPNET_VERSION _XPNET_VERSION(1,0) /* version 1.0 */
#define XPNET_VERSION_EMBED _XPNET_VERSION(1,1) /* version 1.1 */
#define XPNET_MAGIC 0x88786984 /* "XNET" */
#define XPNET_VALID_MSG(_m) \
((XPNET_VERSION_MAJOR(_m->version) == XPNET_VERSION_MAJOR(XPNET_VERSION)) \
......@@ -101,7 +97,6 @@ struct xpnet_message {
#define XPNET_DEVICE_NAME "xp0"
/*
* When messages are queued with xpc_send_notify, a kmalloc'd buffer
* of the following type is passed as a notification cookie. When the
......@@ -145,7 +140,6 @@ static DEFINE_SPINLOCK(xpnet_broadcast_lock);
/* 32KB has been determined to be the ideal */
#define XPNET_DEF_MTU (0x8000UL)
/*
* The partition id is encapsulated in the MAC address. The following
* define locates the octet the partid is in.
......@@ -153,7 +147,6 @@ static DEFINE_SPINLOCK(xpnet_broadcast_lock);
#define XPNET_PARTID_OCTET 1
#define XPNET_LICENSE_OCTET 2
/*
* Define the XPNET debug device structure that is to be used with dev_dbg(),
* dev_err(), dev_warn(), and dev_info().
......@@ -163,7 +156,7 @@ struct device_driver xpnet_dbg_name = {
};
struct device xpnet_dbg_subname = {
.bus_id = {0}, /* set to "" */
.bus_id = {0}, /* set to "" */
.driver = &xpnet_dbg_name
};
......@@ -178,14 +171,13 @@ xpnet_receive(partid_t partid, int channel, struct xpnet_message *msg)
struct sk_buff *skb;
bte_result_t bret;
struct xpnet_dev_private *priv =
(struct xpnet_dev_private *) xpnet_device->priv;
(struct xpnet_dev_private *)xpnet_device->priv;
if (!XPNET_VALID_MSG(msg)) {
/*
* Packet with a different XPC version. Ignore.
*/
xpc_received(partid, channel, (void *) msg);
xpc_received(partid, channel, (void *)msg);
priv->stats.rx_errors++;
......@@ -194,14 +186,13 @@ xpnet_receive(partid_t partid, int channel, struct xpnet_message *msg)
dev_dbg(xpnet, "received 0x%lx, %d, %d, %d\n", msg->buf_pa, msg->size,
msg->leadin_ignore, msg->tailout_ignore);
/* reserve an extra cache line */
skb = dev_alloc_skb(msg->size + L1_CACHE_BYTES);
if (!skb) {
dev_err(xpnet, "failed on dev_alloc_skb(%d)\n",
msg->size + L1_CACHE_BYTES);
xpc_received(partid, channel, (void *) msg);
xpc_received(partid, channel, (void *)msg);
priv->stats.rx_errors++;
......@@ -227,12 +218,13 @@ xpnet_receive(partid_t partid, int channel, struct xpnet_message *msg)
* Move the data over from the other side.
*/
if ((XPNET_VERSION_MINOR(msg->version) == 1) &&
(msg->embedded_bytes != 0)) {
(msg->embedded_bytes != 0)) {
dev_dbg(xpnet, "copying embedded message. memcpy(0x%p, 0x%p, "
"%lu)\n", skb->data, &msg->data,
(size_t) msg->embedded_bytes);
(size_t)msg->embedded_bytes);
skb_copy_to_linear_data(skb, &msg->data, (size_t)msg->embedded_bytes);
skb_copy_to_linear_data(skb, &msg->data,
(size_t)msg->embedded_bytes);
} else {
dev_dbg(xpnet, "transferring buffer to the skb->data area;\n\t"
"bte_copy(0x%p, 0x%p, %hu)\n", (void *)msg->buf_pa,
......@@ -250,10 +242,10 @@ xpnet_receive(partid_t partid, int channel, struct xpnet_message *msg)
dev_err(xpnet, "bte_copy(0x%p, 0x%p, 0x%hx) returned "
"error=0x%x\n", (void *)msg->buf_pa,
(void *)__pa((u64)skb->data &
~(L1_CACHE_BYTES - 1)),
~(L1_CACHE_BYTES - 1)),
msg->size, bret);
xpc_received(partid, channel, (void *) msg);
xpc_received(partid, channel, (void *)msg);
priv->stats.rx_errors++;
......@@ -262,7 +254,7 @@ xpnet_receive(partid_t partid, int channel, struct xpnet_message *msg)
}
dev_dbg(xpnet, "<skb->head=0x%p skb->data=0x%p skb->tail=0x%p "
"skb->end=0x%p skb->len=%d\n", (void *) skb->head,
"skb->end=0x%p skb->len=%d\n", (void *)skb->head,
(void *)skb->data, skb_tail_pointer(skb), skb_end_pointer(skb),
skb->len);
......@@ -275,16 +267,14 @@ xpnet_receive(partid_t partid, int channel, struct xpnet_message *msg)
(void *)skb->head, (void *)skb->data, skb_tail_pointer(skb),
skb_end_pointer(skb), skb->len);
xpnet_device->last_rx = jiffies;
priv->stats.rx_packets++;
priv->stats.rx_bytes += skb->len + ETH_HLEN;
netif_rx_ni(skb);
xpc_received(partid, channel, (void *) msg);
xpc_received(partid, channel, (void *)msg);
}
/*
* This is the handler which XPC calls during any sort of change in
* state or message reception on a connection.
......@@ -295,20 +285,19 @@ xpnet_connection_activity(enum xpc_retval reason, partid_t partid, int channel,
{
long bp;
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
DBUG_ON(channel != XPC_NET_CHANNEL);
switch(reason) {
switch (reason) {
case xpcMsgReceived: /* message received */
DBUG_ON(data == NULL);
xpnet_receive(partid, channel, (struct xpnet_message *) data);
xpnet_receive(partid, channel, (struct xpnet_message *)data);
break;
case xpcConnected: /* connection completed to a partition */
spin_lock_bh(&xpnet_broadcast_lock);
xpnet_broadcast_partitions |= 1UL << (partid -1 );
xpnet_broadcast_partitions |= 1UL << (partid - 1);
bp = xpnet_broadcast_partitions;
spin_unlock_bh(&xpnet_broadcast_lock);
......@@ -321,7 +310,7 @@ xpnet_connection_activity(enum xpc_retval reason, partid_t partid, int channel,
default:
spin_lock_bh(&xpnet_broadcast_lock);
xpnet_broadcast_partitions &= ~(1UL << (partid -1 ));
xpnet_broadcast_partitions &= ~(1UL << (partid - 1));
bp = xpnet_broadcast_partitions;
spin_unlock_bh(&xpnet_broadcast_lock);
......@@ -337,13 +326,11 @@ xpnet_connection_activity(enum xpc_retval reason, partid_t partid, int channel,
}
}
static int
xpnet_dev_open(struct net_device *dev)
{
enum xpc_retval ret;
dev_dbg(xpnet, "calling xpc_connect(%d, 0x%p, NULL, %ld, %ld, %ld, "
"%ld)\n", XPC_NET_CHANNEL, xpnet_connection_activity,
XPNET_MSG_SIZE, XPNET_MSG_NENTRIES, XPNET_MAX_KTHREADS,
......@@ -364,7 +351,6 @@ xpnet_dev_open(struct net_device *dev)
return 0;
}
static int
xpnet_dev_stop(struct net_device *dev)
{
......@@ -375,7 +361,6 @@ xpnet_dev_stop(struct net_device *dev)
return 0;
}
static int
xpnet_dev_change_mtu(struct net_device *dev, int new_mtu)
{
......@@ -392,7 +377,6 @@ xpnet_dev_change_mtu(struct net_device *dev, int new_mtu)
return 0;
}
/*
* Required for the net_device structure.
*/
......@@ -402,7 +386,6 @@ xpnet_dev_set_config(struct net_device *dev, struct ifmap *new_map)
return 0;
}
/*
* Return statistics to the caller.
*/
......@@ -411,13 +394,11 @@ xpnet_dev_get_stats(struct net_device *dev)
{
struct xpnet_dev_private *priv;
priv = (struct xpnet_dev_private *) dev->priv;
priv = (struct xpnet_dev_private *)dev->priv;
return &priv->stats;
}
/*
* Notification that the other end has received the message and
* DMA'd the skb information. At this point, they are done with
......@@ -426,11 +407,9 @@ xpnet_dev_get_stats(struct net_device *dev)
*/
static void
xpnet_send_completed(enum xpc_retval reason, partid_t partid, int channel,
void *__qm)
void *__qm)
{
struct xpnet_pending_msg *queued_msg =
(struct xpnet_pending_msg *) __qm;
struct xpnet_pending_msg *queued_msg = (struct xpnet_pending_msg *)__qm;
DBUG_ON(queued_msg == NULL);
......@@ -439,14 +418,13 @@ xpnet_send_completed(enum xpc_retval reason, partid_t partid, int channel,
if (atomic_dec_return(&queued_msg->use_count) == 0) {
dev_dbg(xpnet, "all acks for skb->head=-x%p\n",
(void *) queued_msg->skb->head);
(void *)queued_msg->skb->head);
dev_kfree_skb_any(queued_msg->skb);
kfree(queued_msg);
}
}
/*
* Network layer has formatted a packet (skb) and is ready to place it
* "on the wire". Prepare and send an xpnet_message to all partitions
......@@ -469,16 +447,13 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
struct xpnet_dev_private *priv;
u16 embedded_bytes;
priv = (struct xpnet_dev_private *) dev->priv;
priv = (struct xpnet_dev_private *)dev->priv;
dev_dbg(xpnet, ">skb->head=0x%p skb->data=0x%p skb->tail=0x%p "
"skb->end=0x%p skb->len=%d\n", (void *) skb->head,
"skb->end=0x%p skb->len=%d\n", (void *)skb->head,
(void *)skb->data, skb_tail_pointer(skb), skb_end_pointer(skb),
skb->len);
/*
* The xpnet_pending_msg tracks how many outstanding
* xpc_send_notifies are relying on this skb. When none
......@@ -487,16 +462,15 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
queued_msg = kmalloc(sizeof(struct xpnet_pending_msg), GFP_ATOMIC);
if (queued_msg == NULL) {
dev_warn(xpnet, "failed to kmalloc %ld bytes; dropping "
"packet\n", sizeof(struct xpnet_pending_msg));
"packet\n", sizeof(struct xpnet_pending_msg));
priv->stats.tx_errors++;
return -ENOMEM;
}
/* get the beginning of the first cacheline and end of last */
start_addr = ((u64) skb->data & ~(L1_CACHE_BYTES - 1));
start_addr = ((u64)skb->data & ~(L1_CACHE_BYTES - 1));
end_addr = L1_CACHE_ALIGN((u64)skb_tail_pointer(skb));
/* calculate how many bytes to embed in the XPC message */
......@@ -506,7 +480,6 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
embedded_bytes = skb->len;
}
/*
* Since the send occurs asynchronously, we set the count to one
* and begin sending. Any sends that happen to complete before
......@@ -517,14 +490,13 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
atomic_set(&queued_msg->use_count, 1);
queued_msg->skb = skb;
second_mac_octet = skb->data[XPNET_PARTID_OCTET];
if (second_mac_octet == 0xff) {
/* we are being asked to broadcast to all partitions */
dp = xpnet_broadcast_partitions;
} else if (second_mac_octet != 0) {
dp = xpnet_broadcast_partitions &
(1UL << (second_mac_octet - 1));
(1UL << (second_mac_octet - 1));
} else {
/* 0 is an invalid partid. Ignore */
dp = 0;
......@@ -543,7 +515,6 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
for (dest_partid = 1; dp && dest_partid < XP_MAX_PARTITIONS;
dest_partid++) {
if (!(dp & (1UL << (dest_partid - 1)))) {
/* not destined for this partition */
continue;
......@@ -552,7 +523,6 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* remove this partition from the destinations mask */
dp &= ~(1UL << (dest_partid - 1));
/* found a partition to send to */
ret = xpc_allocate(dest_partid, XPC_NET_CHANNEL,
......@@ -565,7 +535,7 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (unlikely(embedded_bytes != 0)) {
msg->version = XPNET_VERSION_EMBED;
dev_dbg(xpnet, "calling memcpy(0x%p, 0x%p, 0x%lx)\n",
&msg->data, skb->data, (size_t) embedded_bytes);
&msg->data, skb->data, (size_t)embedded_bytes);
skb_copy_from_linear_data(skb, &msg->data,
(size_t)embedded_bytes);
} else {
......@@ -573,7 +543,7 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
}
msg->magic = XPNET_MAGIC;
msg->size = end_addr - start_addr;
msg->leadin_ignore = (u64) skb->data - start_addr;
msg->leadin_ignore = (u64)skb->data - start_addr;
msg->tailout_ignore = end_addr - (u64)skb_tail_pointer(skb);
msg->buf_pa = __pa(start_addr);
......@@ -583,7 +553,6 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
dest_partid, XPC_NET_CHANNEL, msg->buf_pa, msg->size,
msg->leadin_ignore, msg->tailout_ignore);
atomic_inc(&queued_msg->use_count);
ret = xpc_send_notify(dest_partid, XPC_NET_CHANNEL, msg,
......@@ -599,7 +568,6 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
dev_dbg(xpnet, "no partitions to receive packet destined for "
"%d\n", dest_partid);
dev_kfree_skb(skb);
kfree(queued_msg);
}
......@@ -610,23 +578,20 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
return 0;
}
/*
* Deal with transmit timeouts coming from the network layer.
*/
static void
xpnet_dev_tx_timeout (struct net_device *dev)
xpnet_dev_tx_timeout(struct net_device *dev)
{
struct xpnet_dev_private *priv;
priv = (struct xpnet_dev_private *) dev->priv;
priv = (struct xpnet_dev_private *)dev->priv;
priv->stats.tx_errors++;
return;
}
static int __init
xpnet_init(void)
{
......@@ -634,7 +599,6 @@ xpnet_init(void)
u32 license_num;
int result = -ENOMEM;
if (!ia64_platform_is("sn2")) {
return -ENODEV;
}
......@@ -672,7 +636,7 @@ xpnet_init(void)
license_num = sn_partition_serial_number_val();
for (i = 3; i >= 0; i--) {
xpnet_device->dev_addr[XPNET_LICENSE_OCTET + i] =
license_num & 0xff;
license_num & 0xff;
license_num = license_num >> 8;
}
......@@ -696,23 +660,22 @@ xpnet_init(void)
return result;
}
module_init(xpnet_init);
module_init(xpnet_init);
static void __exit
xpnet_exit(void)
{
dev_info(xpnet, "unregistering network device %s\n",
xpnet_device[0].name);
xpnet_device[0].name);
unregister_netdev(xpnet_device);
free_netdev(xpnet_device);
}
module_exit(xpnet_exit);
module_exit(xpnet_exit);
MODULE_AUTHOR("Silicon Graphics, Inc.");
MODULE_DESCRIPTION("Cross Partition Network adapter (XPNET)");
MODULE_LICENSE("GPL");
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