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authorVarun Prakash <varun@chelsio.com>2016-09-13 21:23:56 +0530
committerDavid S. Miller <davem@davemloft.net>2016-09-15 20:49:19 -0400
commit85e42b044e8dda0acb60c645d089f4a19e0136d3 (patch)
tree53a00ead818733e187b4e67c3c0a66d58c6a40a1 /drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c
parentopenvswitch: avoid deferred execution of recirc actions (diff)
downloadlinux-dev-85e42b044e8dda0acb60c645d089f4a19e0136d3.tar.xz
linux-dev-85e42b044e8dda0acb60c645d089f4a19e0136d3.zip
libcxgb,iw_cxgb4,cxgbit: add cxgb_get_4tuple()
Add cxgb_get_4tuple() in libcxgb_cm.c to remove it's duplicate definitions from cxgb4/cm.c and cxgbit/cxgbit_cm.c. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c')
-rw-r--r--drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c
new file mode 100644
index 000000000000..d7342bb7205d
--- /dev/null
+++ b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/tcp.h>
+#include <linux/ipv6.h>
+
+#include "libcxgb_cm.h"
+
+void
+cxgb_get_4tuple(struct cpl_pass_accept_req *req, enum chip_type type,
+ int *iptype, __u8 *local_ip, __u8 *peer_ip,
+ __be16 *local_port, __be16 *peer_port)
+{
+ int eth_len = (CHELSIO_CHIP_VERSION(type) <= CHELSIO_T5) ?
+ ETH_HDR_LEN_G(be32_to_cpu(req->hdr_len)) :
+ T6_ETH_HDR_LEN_G(be32_to_cpu(req->hdr_len));
+ int ip_len = (CHELSIO_CHIP_VERSION(type) <= CHELSIO_T5) ?
+ IP_HDR_LEN_G(be32_to_cpu(req->hdr_len)) :
+ T6_IP_HDR_LEN_G(be32_to_cpu(req->hdr_len));
+ struct iphdr *ip = (struct iphdr *)((u8 *)(req + 1) + eth_len);
+ struct ipv6hdr *ip6 = (struct ipv6hdr *)((u8 *)(req + 1) + eth_len);
+ struct tcphdr *tcp = (struct tcphdr *)
+ ((u8 *)(req + 1) + eth_len + ip_len);
+
+ if (ip->version == 4) {
+ pr_debug("%s saddr 0x%x daddr 0x%x sport %u dport %u\n",
+ __func__, ntohl(ip->saddr), ntohl(ip->daddr),
+ ntohs(tcp->source), ntohs(tcp->dest));
+ *iptype = 4;
+ memcpy(peer_ip, &ip->saddr, 4);
+ memcpy(local_ip, &ip->daddr, 4);
+ } else {
+ pr_debug("%s saddr %pI6 daddr %pI6 sport %u dport %u\n",
+ __func__, ip6->saddr.s6_addr, ip6->daddr.s6_addr,
+ ntohs(tcp->source), ntohs(tcp->dest));
+ *iptype = 6;
+ memcpy(peer_ip, ip6->saddr.s6_addr, 16);
+ memcpy(local_ip, ip6->daddr.s6_addr, 16);
+ }
+ *peer_port = tcp->source;
+ *local_port = tcp->dest;
+}
+EXPORT_SYMBOL(cxgb_get_4tuple);