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authorBen Hutchings <ben@decadent.org.uk>2011-11-25 18:32:52 +0400
committerDavid S. Miller <davem@davemloft.net>2011-11-26 23:48:14 +0400
commitcf50dcc24f82a6dc2bce523eec2a979eb1b106e2 (patch)
tree579bd064fc0ee8475ca5c8e5d5f6295b82247c3a /include/net/dsa.h
parent6dec4ac4ee1ad894dc0e9647cd3e180f93fc353c (diff)
downloadlinux-cf50dcc24f82a6dc2bce523eec2a979eb1b106e2.tar.xz
dsa: Change dsa_uses_{dsa, trailer}_tags() into inline functions
eth_type_trans() will use these functions if DSA is enabled, which blocks building DSA as a module. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/dsa.h')
-rw-r--r--include/net/dsa.h53
1 files changed, 51 insertions, 2 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 839f768f9e35..32a1b49e8a8c 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -11,6 +11,9 @@
#ifndef __LINUX_NET_DSA_H
#define __LINUX_NET_DSA_H
+#include <linux/timer.h>
+#include <linux/workqueue.h>
+
#define DSA_MAX_SWITCHES 4
#define DSA_MAX_PORTS 12
@@ -54,8 +57,54 @@ struct dsa_platform_data {
struct dsa_chip_data *chip;
};
-extern bool dsa_uses_dsa_tags(void *dsa_ptr);
-extern bool dsa_uses_trailer_tags(void *dsa_ptr);
+struct dsa_switch_tree {
+ /*
+ * Configuration data for the platform device that owns
+ * this dsa switch tree instance.
+ */
+ struct dsa_platform_data *pd;
+
+ /*
+ * Reference to network device to use, and which tagging
+ * protocol to use.
+ */
+ struct net_device *master_netdev;
+ __be16 tag_protocol;
+
+ /*
+ * The switch and port to which the CPU is attached.
+ */
+ s8 cpu_switch;
+ s8 cpu_port;
+
+ /*
+ * Link state polling.
+ */
+ int link_poll_needed;
+ struct work_struct link_poll_work;
+ struct timer_list link_poll_timer;
+
+ /*
+ * Data for the individual switch chips.
+ */
+ struct dsa_switch *ds[DSA_MAX_SWITCHES];
+};
+
+/*
+ * The original DSA tag format and some other tag formats have no
+ * ethertype, which means that we need to add a little hack to the
+ * networking receive path to make sure that received frames get
+ * the right ->protocol assigned to them when one of those tag
+ * formats is in use.
+ */
+static inline bool dsa_uses_dsa_tags(struct dsa_switch_tree *dst)
+{
+ return !!(dst->tag_protocol == htons(ETH_P_DSA));
+}
+static inline bool dsa_uses_trailer_tags(struct dsa_switch_tree *dst)
+{
+ return !!(dst->tag_protocol == htons(ETH_P_TRAILER));
+}
#endif