[net-next,03/11] libcxgb,iw_cxgb4,cxgbit: add cxgb_find_route6()

Message ID	c1fe746311141c25fda314944f557550286a2d95.1473781521.git.varun@chelsio.com (mailing list archive)
State	Not Applicable
Headers	show Return-Path: <linux-rdma-owner@kernel.org> From: Varun Prakash <varun@chelsio.com> To: davem@davemloft.net Cc: netdev@vger.kernel.org, linux-rdma@vger.kernel.org, target-devel@vger.kernel.org, nab@linux-iscsi.org, dledford@redhat.com, swise@opengridcomputing.com, gerlitz.or@gmail.com, indranil@chelsio.com, varun@chelsio.com Subject: [net-next PATCH 03/11] libcxgb, iw_cxgb4, cxgbit: add cxgb_find_route6() Date: Tue, 13 Sep 2016 21:23:58 +0530 Message-Id: <c1fe746311141c25fda314944f557550286a2d95.1473781521.git.varun@chelsio.com> In-Reply-To: <cover.1473781521.git.varun@chelsio.com> References: <cover.1473781521.git.varun@chelsio.com> In-Reply-To: <cover.1473781521.git.varun@chelsio.com> References: <cover.1473781521.git.varun@chelsio.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index 02f5e20..a08a748 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -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"); @@ -2197,10 +2157,13 @@ 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, - raddr6->sin6_addr.s6_addr, - laddr6->sin6_port, raddr6->sin6_port, 0, - raddr6->sin6_scope_id); + 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, + raddr6->sin6_scope_id); iptype = 6; ra = (__u8 *)&raddr6->sin6_addr; } @@ -2540,10 +2503,11 @@ 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, - PASS_OPEN_TOS_G(ntohl(req->tos_stid)), - ((struct sockaddr_in6 *) - &parent_ep->com.local_addr)->sin6_scope_id); + 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); } if (!dst) { printk(KERN_ERR MOD "%s - failed to find dst entry!\n", @@ -3339,10 +3303,12 @@ 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, - raddr6->sin6_addr.s6_addr, - laddr6->sin6_port, raddr6->sin6_port, 0, - raddr6->sin6_scope_id); + 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, + raddr6->sin6_scope_id); } if (!ep->dst) { printk(KERN_ERR MOD "%s - cannot find route.\n", __func__); diff --git a/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c index a318412..0f0de5b 100644 --- a/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c +++ b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c @@ -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); diff --git a/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h index fe69161..c4df04a 100644 --- a/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h +++ b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h @@ -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 diff --git a/drivers/target/iscsi/cxgbit/cxgbit_cm.c b/drivers/target/iscsi/cxgbit/cxgbit_cm.c index 49b24b9..e961ac4 100644 --- a/drivers/target/iscsi/cxgbit/cxgbit_cm.c +++ b/drivers/target/iscsi/cxgbit/cxgbit_cm.c @@ -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; @@ -1299,11 +1259,12 @@ 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, - local_port, peer_port, - PASS_OPEN_TOS_G(ntohl(req->tos_stid)), - ((struct sockaddr_in6 *) - &cnp->com.local_addr)->sin6_scope_id); + 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 *) + &cnp->com.local_addr)->sin6_scope_id); } if (!dst) { pr_err("%s - failed to find dst entry!\n",

[net-next,03/11] libcxgb,iw_cxgb4,cxgbit: add cxgb_find_route6()

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