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Message-Id: <1364993010-15515-3-git-send-email-kaber@trash.net>
Date: Wed, 3 Apr 2013 14:43:27 +0200
From: Patrick McHardy <kaber@...sh.net>
To: jon.maloy@...csson.com
Cc: allan.stephens@...driver.com, netdev@...r.kernel.org,
roland@...nel.org, sean.hefty@...el.com, hal.rosenstock@...il.com,
linux-rdma@...r.kernel.org
Subject: [PATCH 2/5] tipc: move bcast_addr from struct tipc_media to struct tipc_bearer
Some network protocols, like InfiniBand, don't have a fixed broadcast
address but one that depends on the configuration. Move the bcast_addr
to struct tipc_bearer and initialize it with the broadcast address of
the network device when the bearer is enabled.
Signed-off-by: Patrick McHardy <kaber@...sh.net>
---
net/tipc/bcast.c | 4 ++--
net/tipc/bearer.c | 5 +----
net/tipc/bearer.h | 5 +++--
net/tipc/discover.c | 2 +-
net/tipc/eth_media.c | 18 +++++++++++-------
5 files changed, 18 insertions(+), 16 deletions(-)
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 2655c9f..25e159c 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -620,10 +620,10 @@ static int tipc_bcbearer_send(struct sk_buff *buf,
continue; /* bearer pair doesn't add anything */
if (!tipc_bearer_blocked(p))
- tipc_bearer_send(p, buf, &p->media->bcast_addr);
+ tipc_bearer_send(p, buf, &p->bcast_addr);
else if (s && !tipc_bearer_blocked(s))
/* unable to send on primary bearer */
- tipc_bearer_send(s, buf, &s->media->bcast_addr);
+ tipc_bearer_send(s, buf, &s->bcast_addr);
else
/* unable to send on either bearer */
continue;
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index aa62f93..45d5398 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -89,9 +89,6 @@ int tipc_register_media(struct tipc_media *m_ptr)
if ((strlen(m_ptr->name) + 1) > TIPC_MAX_MEDIA_NAME)
goto exit;
- if ((m_ptr->bcast_addr.media_id != m_ptr->type_id) ||
- !m_ptr->bcast_addr.broadcast)
- goto exit;
if (m_ptr->priority > TIPC_MAX_LINK_PRI)
goto exit;
if ((m_ptr->tolerance < TIPC_MIN_LINK_TOL) ||
@@ -407,7 +404,7 @@ restart:
INIT_LIST_HEAD(&b_ptr->links);
spin_lock_init(&b_ptr->lock);
- res = tipc_disc_create(b_ptr, &m_ptr->bcast_addr, disc_domain);
+ res = tipc_disc_create(b_ptr, &b_ptr->bcast_addr, disc_domain);
if (res) {
bearer_disable(b_ptr);
pr_warn("Bearer <%s> rejected, discovery object creation failed\n",
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index cc2d74e..3b3fa26 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -94,8 +94,8 @@ struct tipc_media {
void (*disable_bearer)(struct tipc_bearer *b_ptr);
int (*addr2str)(struct tipc_media_addr *a, char *str_buf, int str_size);
int (*addr2msg)(struct tipc_media_addr *a, char *msg_area);
- int (*msg2addr)(struct tipc_media_addr *a, char *msg_area);
- struct tipc_media_addr bcast_addr;
+ int (*msg2addr)(const struct tipc_bearer *b_ptr,
+ struct tipc_media_addr *a, char *msg_area);
u32 priority;
u32 tolerance;
u32 window;
@@ -134,6 +134,7 @@ struct tipc_bearer {
char name[TIPC_MAX_BEARER_NAME];
spinlock_t lock;
struct tipc_media *media;
+ struct tipc_media_addr bcast_addr;
u32 priority;
u32 window;
u32 tolerance;
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index 1074b95..eedff58 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -129,7 +129,7 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct tipc_bearer *b_ptr)
int link_fully_up;
media_addr.broadcast = 1;
- b_ptr->media->msg2addr(&media_addr, msg_media_addr(msg));
+ b_ptr->media->msg2addr(b_ptr, &media_addr, msg_media_addr(msg));
kfree_skb(buf);
/* Ensure message from node is valid and communication is permitted */
diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index 1bdc6df..0648819 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -77,12 +77,13 @@ static struct notifier_block notifier = {
* Media-dependent "value" field stores MAC address in first 6 bytes
* and zeroes out the remaining bytes.
*/
-static void eth_media_addr_set(struct tipc_media_addr *a, char *mac)
+static void eth_media_addr_set(const struct tipc_bearer *tb_ptr,
+ struct tipc_media_addr *a, char *mac)
{
memcpy(a->value, mac, ETH_ALEN);
memset(a->value + ETH_ALEN, 0, sizeof(a->value) - ETH_ALEN);
a->media_id = TIPC_MEDIA_TYPE_ETH;
- a->broadcast = !memcmp(mac, eth_media_info.bcast_addr.value, ETH_ALEN);
+ a->broadcast = !memcmp(mac, tb_ptr->bcast_addr.value, ETH_ALEN);
}
/**
@@ -201,9 +202,13 @@ static int enable_bearer(struct tipc_bearer *tb_ptr)
/* Associate TIPC bearer with Ethernet bearer */
eb_ptr->bearer = tb_ptr;
tb_ptr->usr_handle = (void *)eb_ptr;
+ memset(tb_ptr->bcast_addr.value, 0, sizeof(tb_ptr->bcast_addr.value));
+ memcpy(tb_ptr->bcast_addr.value, dev->broadcast, ETH_ALEN);
+ tb_ptr->bcast_addr.media_id = TIPC_MEDIA_TYPE_ETH;
+ tb_ptr->bcast_addr.broadcast = 1;
tb_ptr->mtu = dev->mtu;
tb_ptr->blocked = 0;
- eth_media_addr_set(&tb_ptr->addr, (char *)dev->dev_addr);
+ eth_media_addr_set(tb_ptr, &tb_ptr->addr, (char *)dev->dev_addr);
return 0;
}
@@ -315,12 +320,13 @@ static int eth_addr2msg(struct tipc_media_addr *a, char *msg_area)
/**
* eth_str2addr - convert message header address format to Ethernet format
*/
-static int eth_msg2addr(struct tipc_media_addr *a, char *msg_area)
+static int eth_msg2addr(const struct tipc_bearer *tb_ptr,
+ struct tipc_media_addr *a, char *msg_area)
{
if (msg_area[TIPC_MEDIA_TYPE_OFFSET] != TIPC_MEDIA_TYPE_ETH)
return 1;
- eth_media_addr_set(a, msg_area + ETH_ADDR_OFFSET);
+ eth_media_addr_set(tb_ptr, a, msg_area + ETH_ADDR_OFFSET);
return 0;
}
@@ -334,8 +340,6 @@ static struct tipc_media eth_media_info = {
.addr2str = eth_addr2str,
.addr2msg = eth_addr2msg,
.msg2addr = eth_msg2addr,
- .bcast_addr = { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
- TIPC_MEDIA_TYPE_ETH, 1 },
.priority = TIPC_DEF_LINK_PRI,
.tolerance = TIPC_DEF_LINK_TOL,
.window = TIPC_DEF_LINK_WIN,
--
1.8.1.4
--
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