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Commit 95554761 authored by Varun Prakash's avatar Varun Prakash Committed by David S. Miller
Browse files

libcxgb,iw_cxgb4,cxgbit: add cxgb_find_route6() 



Add cxgb_find_route6() in libcxgb_cm.c to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c.

Signed-off-by: default avatarVarun Prakash <varun@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 804c2f3e

drivers/infiniband/hw/cxgb4/cm.c

+18 −52
Original line number Diff line number Diff line
@@ -465,46 +465,6 @@ static struct net_device *get_real_dev(struct net_device *egress_dev) 
	return rdma_vlan_dev_real_dev(egress_dev) ? : egress_dev;

}



static int our_interface(struct c4iw_dev *dev, struct net_device *egress_dev)

{

	int i;



	egress_dev = get_real_dev(egress_dev);

	for (i = 0; i < dev->rdev.lldi.nports; i++)

		if (dev->rdev.lldi.ports[i] == egress_dev)

			return 1;

	return 0;

}



static struct dst_entry *find_route6(struct c4iw_dev *dev, __u8 *local_ip,

				     __u8 *peer_ip, __be16 local_port,

				     __be16 peer_port, u8 tos,

				     __u32 sin6_scope_id)

{

	struct dst_entry *dst = NULL;



	if (IS_ENABLED(CONFIG_IPV6)) {

		struct flowi6 fl6;



		memset(&fl6, 0, sizeof(fl6));

		memcpy(&fl6.daddr, peer_ip, 16);

		memcpy(&fl6.saddr, local_ip, 16);

		if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)

			fl6.flowi6_oif = sin6_scope_id;

		dst = ip6_route_output(&init_net, NULL, &fl6);

		if (!dst)

			goto out;

		if (!our_interface(dev, ip6_dst_idev(dst)->dev) &&

		    !(ip6_dst_idev(dst)->dev->flags & IFF_LOOPBACK)) {

			dst_release(dst);

			dst = NULL;

		}

	}



out:

	return dst;

}



static void arp_failure_discard(void *handle, struct sk_buff *skb)

{

	pr_err(MOD "ARP failure\n");
@@ -2197,9 +2157,12 @@ static int c4iw_reconnect(struct c4iw_ep *ep) 
		iptype = 4;

		ra = (__u8 *)&raddr->sin_addr;

	} else {

		ep->dst = find_route6(ep->com.dev, laddr6->sin6_addr.s6_addr,

		ep->dst = cxgb_find_route6(&ep->com.dev->rdev.lldi,

					   get_real_dev,

					   laddr6->sin6_addr.s6_addr,

					   raddr6->sin6_addr.s6_addr,

				      laddr6->sin6_port, raddr6->sin6_port, 0,

					   laddr6->sin6_port,

					   raddr6->sin6_port, 0,

					   raddr6->sin6_scope_id);

		iptype = 6;

		ra = (__u8 *)&raddr6->sin6_addr;
@@ -2540,7 +2503,8 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb) 
		     , __func__, parent_ep, hwtid,

		     local_ip, peer_ip, ntohs(local_port),

		     ntohs(peer_port), peer_mss);

		dst = find_route6(dev, local_ip, peer_ip, local_port, peer_port,

		dst = cxgb_find_route6(&dev->rdev.lldi, get_real_dev,

				local_ip, peer_ip, local_port, peer_port,

				PASS_OPEN_TOS_G(ntohl(req->tos_stid)),

				((struct sockaddr_in6 *)

				 &parent_ep->com.local_addr)->sin6_scope_id);
@@ -3339,9 +3303,11 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 
		     __func__, laddr6->sin6_addr.s6_addr,

		     ntohs(laddr6->sin6_port),

		     raddr6->sin6_addr.s6_addr, ntohs(raddr6->sin6_port));

		ep->dst = find_route6(dev, laddr6->sin6_addr.s6_addr,

		ep->dst = cxgb_find_route6(&dev->rdev.lldi, get_real_dev,

					   laddr6->sin6_addr.s6_addr,

					   raddr6->sin6_addr.s6_addr,

				      laddr6->sin6_port, raddr6->sin6_port, 0,

					   laddr6->sin6_port,

					   raddr6->sin6_port, 0,

					   raddr6->sin6_scope_id);

	}

	if (!ep->dst) {

drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c

+33 −0
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ 
#include <linux/tcp.h>

#include <linux/ipv6.h>

#include <net/route.h>

#include <net/ip6_route.h>



#include "libcxgb_cm.h"
@@ -114,3 +115,35 @@ cxgb_find_route(struct cxgb4_lld_info *lldi, 
	return &rt->dst;

}

EXPORT_SYMBOL(cxgb_find_route);



struct dst_entry *

cxgb_find_route6(struct cxgb4_lld_info *lldi,

		 struct net_device *(*get_real_dev)(struct net_device *),

		 __u8 *local_ip, __u8 *peer_ip, __be16 local_port,

		 __be16 peer_port, u8 tos, __u32 sin6_scope_id)

{

	struct dst_entry *dst = NULL;



	if (IS_ENABLED(CONFIG_IPV6)) {

		struct flowi6 fl6;



		memset(&fl6, 0, sizeof(fl6));

		memcpy(&fl6.daddr, peer_ip, 16);

		memcpy(&fl6.saddr, local_ip, 16);

		if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)

			fl6.flowi6_oif = sin6_scope_id;

		dst = ip6_route_output(&init_net, NULL, &fl6);

		if (!dst)

			goto out;

		if (!cxgb_our_interface(lldi, get_real_dev,

					ip6_dst_idev(dst)->dev) &&

		    !(ip6_dst_idev(dst)->dev->flags & IFF_LOOPBACK)) {

			dst_release(dst);

			dst = NULL;

		}

	}



out:

	return dst;

}

EXPORT_SYMBOL(cxgb_find_route6);

drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h

+4 −0
Original line number Diff line number Diff line
@@ -43,4 +43,8 @@ struct dst_entry * 
cxgb_find_route(struct cxgb4_lld_info *,

		struct net_device *(*)(struct net_device *),

		__be32, __be32, __be16,	__be16, u8);

struct dst_entry *

cxgb_find_route6(struct cxgb4_lld_info *,

		 struct net_device *(*)(struct net_device *),

		 __u8 *, __u8 *, __be16, __be16, u8, __u32);

#endif

drivers/target/iscsi/cxgbit/cxgbit_cm.c

+6 −45
Original line number Diff line number Diff line
@@ -790,46 +790,6 @@ void _cxgbit_free_csk(struct kref *kref) 
	kfree(csk);

}



static int

cxgbit_our_interface(struct cxgbit_device *cdev, struct net_device *egress_dev)

{

	u8 i;



	egress_dev = cxgbit_get_real_dev(egress_dev);

	for (i = 0; i < cdev->lldi.nports; i++)

		if (cdev->lldi.ports[i] == egress_dev)

			return 1;

	return 0;

}



static struct dst_entry *

cxgbit_find_route6(struct cxgbit_device *cdev, __u8 *local_ip, __u8 *peer_ip,

		   __be16 local_port, __be16 peer_port, u8 tos,

		   __u32 sin6_scope_id)

{

	struct dst_entry *dst = NULL;



	if (IS_ENABLED(CONFIG_IPV6)) {

		struct flowi6 fl6;



		memset(&fl6, 0, sizeof(fl6));

		memcpy(&fl6.daddr, peer_ip, 16);

		memcpy(&fl6.saddr, local_ip, 16);

		if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)

			fl6.flowi6_oif = sin6_scope_id;

		dst = ip6_route_output(&init_net, NULL, &fl6);

		if (!dst)

			goto out;

		if (!cxgbit_our_interface(cdev, ip6_dst_idev(dst)->dev) &&

		    !(ip6_dst_idev(dst)->dev->flags & IFF_LOOPBACK)) {

			dst_release(dst);

			dst = NULL;

		}

	}

out:

	return dst;

}



static void cxgbit_set_tcp_window(struct cxgbit_sock *csk, struct port_info *pi)

{

	unsigned int linkspeed;
@@ -1299,7 +1259,8 @@ cxgbit_pass_accept_req(struct cxgbit_device *cdev, struct sk_buff *skb) 
			 , __func__, cnp, tid,

			 local_ip, peer_ip, ntohs(local_port),

			 ntohs(peer_port), peer_mss);

		dst = cxgbit_find_route6(cdev, local_ip, peer_ip,

		dst = cxgb_find_route6(&cdev->lldi, cxgbit_get_real_dev,

				       local_ip, peer_ip,

				       local_port, peer_port,

				       PASS_OPEN_TOS_G(ntohl(req->tos_stid)),

				       ((struct sockaddr_in6 *)