diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 15:54:36 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 15:54:36 -0700 |
commit | 13220a94d35708d5378114e96ffcc88d0a74fe99 (patch) | |
tree | be6530677d5f9536c7211e05ba012923e4c0b307 /net/dsa/tag_dsa.c | |
parent | 8690d8a9f6c2d5728a9c9f68231f1bb4de109e3a (diff) | |
parent | 08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1750 commits)
ixgbe: Allow Priority Flow Control settings to survive a device reset
net: core: remove unneeded include in net/core/utils.c.
e1000e: update version number
e1000e: fix close interrupt race
e1000e: fix loss of multicast packets
e1000e: commonize tx cleanup routine to match e1000 & igb
netfilter: fix nf_logger name in ebt_ulog.
netfilter: fix warning in ebt_ulog init function.
netfilter: fix warning about invalid const usage
e1000: fix close race with interrupt
e1000: cleanup clean_tx_irq routine so that it completely cleans ring
e1000: fix tx hang detect logic and address dma mapping issues
bridge: bad error handling when adding invalid ether address
bonding: select current active slave when enslaving device for mode tlb and alb
gianfar: reallocate skb when headroom is not enough for fcb
Bump release date to 25Mar2009 and version to 0.22
r6040: Fix second PHY address
qeth: fix wait_event_timeout handling
qeth: check for completion of a running recovery
qeth: unregister MAC addresses during recovery.
...
Manually fixed up conflicts in:
drivers/infiniband/hw/cxgb3/cxio_hal.h
drivers/infiniband/hw/nes/nes_nic.c
Diffstat (limited to 'net/dsa/tag_dsa.c')
-rw-r--r-- | net/dsa/tag_dsa.c | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c index f99a019b939..8fa25bafe6c 100644 --- a/net/dsa/tag_dsa.c +++ b/net/dsa/tag_dsa.c @@ -1,6 +1,6 @@ /* * net/dsa/tag_dsa.c - (Non-ethertype) DSA tagging - * Copyright (c) 2008 Marvell Semiconductor + * Copyright (c) 2008-2009 Marvell Semiconductor * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -36,7 +36,7 @@ int dsa_xmit(struct sk_buff *skb, struct net_device *dev) * Construct tagged FROM_CPU DSA tag from 802.1q tag. */ dsa_header = skb->data + 2 * ETH_ALEN; - dsa_header[0] = 0x60; + dsa_header[0] = 0x60 | p->parent->index; dsa_header[1] = p->port << 3; /* @@ -57,7 +57,7 @@ int dsa_xmit(struct sk_buff *skb, struct net_device *dev) * Construct untagged FROM_CPU DSA tag. */ dsa_header = skb->data + 2 * ETH_ALEN; - dsa_header[0] = 0x40; + dsa_header[0] = 0x40 | p->parent->index; dsa_header[1] = p->port << 3; dsa_header[2] = 0x00; dsa_header[3] = 0x00; @@ -65,7 +65,7 @@ int dsa_xmit(struct sk_buff *skb, struct net_device *dev) skb->protocol = htons(ETH_P_DSA); - skb->dev = p->parent->master_netdev; + skb->dev = p->parent->dst->master_netdev; dev_queue_xmit(skb); return NETDEV_TX_OK; @@ -78,11 +78,13 @@ out_free: static int dsa_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { - struct dsa_switch *ds = dev->dsa_ptr; + struct dsa_switch_tree *dst = dev->dsa_ptr; + struct dsa_switch *ds; u8 *dsa_header; + int source_device; int source_port; - if (unlikely(ds == NULL)) + if (unlikely(dst == NULL)) goto out_drop; skb = skb_unshare(skb, GFP_ATOMIC); @@ -98,16 +100,24 @@ static int dsa_rcv(struct sk_buff *skb, struct net_device *dev, dsa_header = skb->data - 2; /* - * Check that frame type is either TO_CPU or FORWARD, and - * that the source device is zero. + * Check that frame type is either TO_CPU or FORWARD. */ - if ((dsa_header[0] & 0xdf) != 0x00 && (dsa_header[0] & 0xdf) != 0xc0) + if ((dsa_header[0] & 0xc0) != 0x00 && (dsa_header[0] & 0xc0) != 0xc0) goto out_drop; /* - * Check that the source port is a registered DSA port. + * Determine source device and port. */ + source_device = dsa_header[0] & 0x1f; source_port = (dsa_header[1] >> 3) & 0x1f; + + /* + * Check that the source device exists and that the source + * port is a registered DSA port. + */ + if (source_device >= dst->pd->nr_chips) + goto out_drop; + ds = dst->ds[source_device]; if (source_port >= DSA_MAX_PORTS || ds->ports[source_port] == NULL) goto out_drop; @@ -175,8 +185,8 @@ out: return 0; } -static struct packet_type dsa_packet_type = { - .type = __constant_htons(ETH_P_DSA), +static struct packet_type dsa_packet_type __read_mostly = { + .type = cpu_to_be16(ETH_P_DSA), .func = dsa_rcv, }; |