diff options
author | Dean Nelson <dcn@sgi.com> | 2008-04-22 21:48:55 +0200 |
---|---|---|
committer | Tony Luck <tony.luck@intel.com> | 2008-04-23 00:08:44 +0200 |
commit | 35190506b1a18eda7df24b285fdcd94dec7800ef (patch) | |
tree | ce0101cd6867738ff8bbe4edf343cbe2517540e9 /drivers/misc/sgi-xp/xpnet.c | |
parent | [IA64] run some drivers/misc/sgi-xp through scripts/Lindent (diff) | |
download | linux-35190506b1a18eda7df24b285fdcd94dec7800ef.tar.xz linux-35190506b1a18eda7df24b285fdcd94dec7800ef.zip |
[IA64] run rest drivers/misc/sgi-xp through scripts/Lindent
Ran patches through scripts/Lindent (part 2).
Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'drivers/misc/sgi-xp/xpnet.c')
-rw-r--r-- | drivers/misc/sgi-xp/xpnet.c | 109 |
1 files changed, 36 insertions, 73 deletions
diff --git a/drivers/misc/sgi-xp/xpnet.c b/drivers/misc/sgi-xp/xpnet.c index 38552f37e53d..e41cb93b8c89 100644 --- a/drivers/misc/sgi-xp/xpnet.c +++ b/drivers/misc/sgi-xp/xpnet.c @@ -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"); - |