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Commit 24d44a39 authored by Steve Wise's avatar Steve Wise Committed by Roland Dreier
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RDMA/cma: Add IPv6 support for iWARP 



Modify the type of local_addr and remote_addr fields in struct
iw_cm_id from struct sockaddr_in to struct sockaddr_storage to hold
IPv6 and IPv4 addresses uniformly.

Change the references of local_addr and remote_addr in cxgb4, cxgb3,
nes and amso drivers to match this.  However to be able to actully run
traffic over IPv6, low-level drivers have to add code to support this.

Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Reviewed-by: default avatarSean Hefty <sean.hefty@intel.com>

[ Fix unused variable warnings when INFINIBAND_NES_DEBUG not set.
  - Roland ]

Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent c095ba72

drivers/infiniband/core/cma.c

+17 −27
Original line number Diff line number Diff line
@@ -1385,8 +1385,9 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event) 
{

	struct rdma_id_private *id_priv = iw_id->context;

	struct rdma_cm_event event;

	struct sockaddr_in *sin;

	int ret = 0;

	struct sockaddr *laddr = (struct sockaddr *)&iw_event->local_addr;

	struct sockaddr *raddr = (struct sockaddr *)&iw_event->remote_addr;



	if (cma_disable_callback(id_priv, RDMA_CM_CONNECT))

		return 0;
@@ -1397,10 +1398,10 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event) 
		event.event = RDMA_CM_EVENT_DISCONNECTED;

		break;

	case IW_CM_EVENT_CONNECT_REPLY:

		sin = (struct sockaddr_in *) cma_src_addr(id_priv);

		*sin = iw_event->local_addr;

		sin = (struct sockaddr_in *) cma_dst_addr(id_priv);

		*sin = iw_event->remote_addr;

		memcpy(cma_src_addr(id_priv), laddr,

		       rdma_addr_size(laddr));

		memcpy(cma_dst_addr(id_priv), raddr,

		       rdma_addr_size(raddr));

		switch (iw_event->status) {

		case 0:

			event.event = RDMA_CM_EVENT_ESTABLISHED;
@@ -1450,11 +1451,12 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id, 
{

	struct rdma_cm_id *new_cm_id;

	struct rdma_id_private *listen_id, *conn_id;

	struct sockaddr_in *sin;

	struct net_device *dev = NULL;

	struct rdma_cm_event event;

	int ret;

	struct ib_device_attr attr;

	struct sockaddr *laddr = (struct sockaddr *)&iw_event->local_addr;

	struct sockaddr *raddr = (struct sockaddr *)&iw_event->remote_addr;



	listen_id = cm_id->context;

	if (cma_disable_callback(listen_id, RDMA_CM_LISTEN))
@@ -1472,14 +1474,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id, 
	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);

	conn_id->state = RDMA_CM_CONNECT;



	dev = ip_dev_find(&init_net, iw_event->local_addr.sin_addr.s_addr);

	if (!dev) {

		ret = -EADDRNOTAVAIL;

		mutex_unlock(&conn_id->handler_mutex);

		rdma_destroy_id(new_cm_id);

		goto out;

	}

	ret = rdma_copy_addr(&conn_id->id.route.addr.dev_addr, dev, NULL);

	ret = rdma_translate_ip(laddr, &conn_id->id.route.addr.dev_addr);

	if (ret) {

		mutex_unlock(&conn_id->handler_mutex);

		rdma_destroy_id(new_cm_id);
@@ -1497,10 +1492,8 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id, 
	cm_id->context = conn_id;

	cm_id->cm_handler = cma_iw_handler;



	sin = (struct sockaddr_in *) cma_src_addr(conn_id);

	*sin = iw_event->local_addr;

	sin = (struct sockaddr_in *) cma_dst_addr(conn_id);

	*sin = iw_event->remote_addr;

	memcpy(cma_src_addr(conn_id), laddr, rdma_addr_size(laddr));

	memcpy(cma_dst_addr(conn_id), raddr, rdma_addr_size(raddr));



	ret = ib_query_device(conn_id->id.device, &attr);

	if (ret) {
@@ -1576,7 +1569,6 @@ static int cma_ib_listen(struct rdma_id_private *id_priv) 
static int cma_iw_listen(struct rdma_id_private *id_priv, int backlog)

{

	int ret;

	struct sockaddr_in *sin;

	struct iw_cm_id	*id;



	id = iw_create_cm_id(id_priv->id.device,
@@ -1587,8 +1579,8 @@ static int cma_iw_listen(struct rdma_id_private *id_priv, int backlog) 


	id_priv->cm_id.iw = id;



	sin = (struct sockaddr_in *) cma_src_addr(id_priv);

	id_priv->cm_id.iw->local_addr = *sin;

	memcpy(&id_priv->cm_id.iw->local_addr, cma_src_addr(id_priv),

	       rdma_addr_size(cma_src_addr(id_priv)));



	ret = iw_cm_listen(id_priv->cm_id.iw, backlog);
@@ -2803,7 +2795,6 @@ static int cma_connect_iw(struct rdma_id_private *id_priv, 
			  struct rdma_conn_param *conn_param)

{

	struct iw_cm_id *cm_id;

	struct sockaddr_in* sin;

	int ret;

	struct iw_cm_conn_param iw_param;
@@ -2813,11 +2804,10 @@ static int cma_connect_iw(struct rdma_id_private *id_priv, 


	id_priv->cm_id.iw = cm_id;



	sin = (struct sockaddr_in *) cma_src_addr(id_priv);

	cm_id->local_addr = *sin;



	sin = (struct sockaddr_in *) cma_dst_addr(id_priv);

	cm_id->remote_addr = *sin;

	memcpy(&cm_id->local_addr, cma_src_addr(id_priv),

	       rdma_addr_size(cma_src_addr(id_priv)));

	memcpy(&cm_id->remote_addr, cma_dst_addr(id_priv),

	       rdma_addr_size(cma_dst_addr(id_priv)));



	ret = cma_modify_qp_rtr(id_priv, conn_param);

	if (ret)

drivers/infiniband/hw/amso1100/c2_ae.c

+10 −8
Original line number Diff line number Diff line
@@ -155,6 +155,8 @@ void c2_ae_event(struct c2_dev *c2dev, u32 mq_index) 
	enum c2_event_id event_id;

	unsigned long flags;

	int status;

	struct sockaddr_in *laddr = (struct sockaddr_in *)&cm_event.local_addr;

	struct sockaddr_in *raddr = (struct sockaddr_in *)&cm_event.remote_addr;



	/*

	 * retrieve the message
@@ -206,10 +208,10 @@ void c2_ae_event(struct c2_dev *c2dev, u32 mq_index) 
		case CCAE_ACTIVE_CONNECT_RESULTS:

			res = &wr->ae.ae_active_connect_results;

			cm_event.event = IW_CM_EVENT_CONNECT_REPLY;

			cm_event.local_addr.sin_addr.s_addr = res->laddr;

			cm_event.remote_addr.sin_addr.s_addr = res->raddr;

			cm_event.local_addr.sin_port = res->lport;

			cm_event.remote_addr.sin_port =	res->rport;

			laddr->sin_addr.s_addr = res->laddr;

			raddr->sin_addr.s_addr = res->raddr;

			laddr->sin_port = res->lport;

			raddr->sin_port = res->rport;

			if (status == 0) {

				cm_event.private_data_len =

					be32_to_cpu(res->private_data_length);
@@ -281,10 +283,10 @@ void c2_ae_event(struct c2_dev *c2dev, u32 mq_index) 
		}

		cm_event.event = IW_CM_EVENT_CONNECT_REQUEST;

		cm_event.provider_data = (void*)(unsigned long)req->cr_handle;

		cm_event.local_addr.sin_addr.s_addr = req->laddr;

		cm_event.remote_addr.sin_addr.s_addr = req->raddr;

		cm_event.local_addr.sin_port = req->lport;

		cm_event.remote_addr.sin_port = req->rport;

		laddr->sin_addr.s_addr = req->laddr;

		raddr->sin_addr.s_addr = req->raddr;

		laddr->sin_port = req->lport;

		raddr->sin_port = req->rport;

		cm_event.private_data_len =

			be32_to_cpu(req->private_data_length);

		cm_event.private_data = req->private_data;

drivers/infiniband/hw/amso1100/c2_cm.c

+12 −4
Original line number Diff line number Diff line
@@ -46,6 +46,10 @@ int c2_llp_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) 
	struct c2wr_qp_connect_req *wr;	/* variable size needs a malloc. */

	struct c2_vq_req *vq_req;

	int err;

	struct sockaddr_in *raddr = (struct sockaddr_in *)&cm_id->remote_addr;



	if (cm_id->remote_addr.ss_family != AF_INET)

		return -ENOSYS;



	ibqp = c2_get_qp(cm_id->device, iw_param->qpn);

	if (!ibqp)
@@ -91,8 +95,8 @@ int c2_llp_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) 
	wr->rnic_handle = c2dev->adapter_handle;

	wr->qp_handle = qp->adapter_handle;



	wr->remote_addr = cm_id->remote_addr.sin_addr.s_addr;

	wr->remote_port = cm_id->remote_addr.sin_port;

	wr->remote_addr = raddr->sin_addr.s_addr;

	wr->remote_port = raddr->sin_port;



	/*

	 * Move any private data from the callers's buf into
@@ -135,6 +139,10 @@ int c2_llp_service_create(struct iw_cm_id *cm_id, int backlog) 
	struct c2wr_ep_listen_create_rep *reply;

	struct c2_vq_req *vq_req;

	int err;

	struct sockaddr_in *laddr = (struct sockaddr_in *)&cm_id->local_addr;



	if (cm_id->local_addr.ss_family != AF_INET)

		return -ENOSYS;



	c2dev = to_c2dev(cm_id->device);

	if (c2dev == NULL)
@@ -153,8 +161,8 @@ int c2_llp_service_create(struct iw_cm_id *cm_id, int backlog) 
	c2_wr_set_id(&wr, CCWR_EP_LISTEN_CREATE);

	wr.hdr.context = (u64) (unsigned long) vq_req;

	wr.rnic_handle = c2dev->adapter_handle;

	wr.local_addr = cm_id->local_addr.sin_addr.s_addr;

	wr.local_port = cm_id->local_addr.sin_port;

	wr.local_addr = laddr->sin_addr.s_addr;

	wr.local_port = laddr->sin_port;

	wr.backlog = cpu_to_be32(backlog);

	wr.user_context = (u64) (unsigned long) cm_id;

drivers/infiniband/hw/cxgb3/iwch_cm.c

+32 −14
Original line number Diff line number Diff line
@@ -721,8 +721,10 @@ static void connect_reply_upcall(struct iwch_ep *ep, int status) 
	memset(&event, 0, sizeof(event));

	event.event = IW_CM_EVENT_CONNECT_REPLY;

	event.status = status;

	event.local_addr = ep->com.local_addr;

	event.remote_addr = ep->com.remote_addr;

	memcpy(&event.local_addr, &ep->com.local_addr,

	       sizeof(ep->com.local_addr));

	memcpy(&event.remote_addr, &ep->com.remote_addr,

	       sizeof(ep->com.remote_addr));



	if ((status == 0) || (status == -ECONNREFUSED)) {

		event.private_data_len = ep->plen;
@@ -747,8 +749,10 @@ static void connect_request_upcall(struct iwch_ep *ep) 
	PDBG("%s ep %p tid %d\n", __func__, ep, ep->hwtid);

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

	event.event = IW_CM_EVENT_CONNECT_REQUEST;

	event.local_addr = ep->com.local_addr;

	event.remote_addr = ep->com.remote_addr;

	memcpy(&event.local_addr, &ep->com.local_addr,

	       sizeof(ep->com.local_addr));

	memcpy(&event.remote_addr, &ep->com.remote_addr,

	       sizeof(ep->com.local_addr));

	event.private_data_len = ep->plen;

	event.private_data = ep->mpa_pkt + sizeof(struct mpa_message);

	event.provider_data = ep;
@@ -1872,8 +1876,9 @@ int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 
static int is_loopback_dst(struct iw_cm_id *cm_id)

{

	struct net_device *dev;

	struct sockaddr_in *raddr = (struct sockaddr_in *)&cm_id->remote_addr;



	dev = ip_dev_find(&init_net, cm_id->remote_addr.sin_addr.s_addr);

	dev = ip_dev_find(&init_net, raddr->sin_addr.s_addr);

	if (!dev)

		return 0;

	dev_put(dev);
@@ -1886,6 +1891,13 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 
	struct iwch_ep *ep;

	struct rtable *rt;

	int err = 0;

	struct sockaddr_in *laddr = (struct sockaddr_in *)&cm_id->local_addr;

	struct sockaddr_in *raddr = (struct sockaddr_in *)&cm_id->remote_addr;



	if (cm_id->remote_addr.ss_family != PF_INET) {

		err = -ENOSYS;

		goto out;

	}



	if (is_loopback_dst(cm_id)) {

		err = -ENOSYS;
@@ -1929,11 +1941,9 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 
	}



	/* find a route */

	rt = find_route(h->rdev.t3cdev_p,

			cm_id->local_addr.sin_addr.s_addr,

			cm_id->remote_addr.sin_addr.s_addr,

			cm_id->local_addr.sin_port,

			cm_id->remote_addr.sin_port, IPTOS_LOWDELAY);

	rt = find_route(h->rdev.t3cdev_p, laddr->sin_addr.s_addr,

			raddr->sin_addr.s_addr, laddr->sin_port,

			raddr->sin_port, IPTOS_LOWDELAY);

	if (!rt) {

		printk(KERN_ERR MOD "%s - cannot find route.\n", __func__);

		err = -EHOSTUNREACH;
@@ -1941,7 +1951,7 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 
	}

	ep->dst = &rt->dst;

	ep->l2t = t3_l2t_get(ep->com.tdev, ep->dst, NULL,

			     &cm_id->remote_addr.sin_addr.s_addr);

			     &raddr->sin_addr.s_addr);

	if (!ep->l2t) {

		printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__);

		err = -ENOMEM;
@@ -1950,8 +1960,10 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 


	state_set(&ep->com, CONNECTING);

	ep->tos = IPTOS_LOWDELAY;

	ep->com.local_addr = cm_id->local_addr;

	ep->com.remote_addr = cm_id->remote_addr;

	memcpy(&ep->com.local_addr, &cm_id->local_addr,

	       sizeof(ep->com.local_addr));

	memcpy(&ep->com.remote_addr, &cm_id->remote_addr,

	       sizeof(ep->com.remote_addr));



	/* send connect request to rnic */

	err = send_connect(ep);
@@ -1979,6 +1991,11 @@ int iwch_create_listen(struct iw_cm_id *cm_id, int backlog) 


	might_sleep();



	if (cm_id->local_addr.ss_family != PF_INET) {

		err = -ENOSYS;

		goto fail1;

	}



	ep = alloc_ep(sizeof(*ep), GFP_KERNEL);

	if (!ep) {

		printk(KERN_ERR MOD "%s - cannot alloc ep.\n", __func__);
@@ -1990,7 +2007,8 @@ int iwch_create_listen(struct iw_cm_id *cm_id, int backlog) 
	cm_id->add_ref(cm_id);

	ep->com.cm_id = cm_id;

	ep->backlog = backlog;

	ep->com.local_addr = cm_id->local_addr;

	memcpy(&ep->com.local_addr, &cm_id->local_addr,

	       sizeof(ep->com.local_addr));



	/*

	 * Allocate a server TID.

drivers/infiniband/hw/cxgb4/cm.c

+29 −26
Original line number Diff line number Diff line
@@ -952,8 +952,10 @@ static void connect_reply_upcall(struct c4iw_ep *ep, int status) 
	memset(&event, 0, sizeof(event));

	event.event = IW_CM_EVENT_CONNECT_REPLY;

	event.status = status;

	event.local_addr = ep->com.local_addr;

	event.remote_addr = ep->com.remote_addr;

	memcpy(&event.local_addr, &ep->com.local_addr,

	       sizeof(ep->com.local_addr));

	memcpy(&event.remote_addr, &ep->com.remote_addr,

	       sizeof(ep->com.remote_addr));



	if ((status == 0) || (status == -ECONNREFUSED)) {

		if (!ep->tried_with_mpa_v1) {
@@ -989,8 +991,10 @@ static void connect_request_upcall(struct c4iw_ep *ep) 
	PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);

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

	event.event = IW_CM_EVENT_CONNECT_REQUEST;

	event.local_addr = ep->com.local_addr;

	event.remote_addr = ep->com.remote_addr;

	memcpy(&event.local_addr, &ep->com.local_addr,

	       sizeof(ep->com.local_addr));

	memcpy(&event.remote_addr, &ep->com.remote_addr,

	       sizeof(ep->com.remote_addr));

	event.provider_data = ep;

	if (!ep->tried_with_mpa_v1) {

		/* this means MPA_v2 is used */
@@ -1568,6 +1572,10 @@ static int c4iw_reconnect(struct c4iw_ep *ep) 
	struct net_device *pdev;

	int step;

	struct neighbour *neigh;

	struct sockaddr_in *laddr = (struct sockaddr_in *)

				    &ep->com.cm_id->local_addr;

	struct sockaddr_in *raddr = (struct sockaddr_in *)

				    &ep->com.cm_id->remote_addr;



	PDBG("%s qp %p cm_id %p\n", __func__, ep->com.qp, ep->com.cm_id);

	init_timer(&ep->timer);
@@ -1585,10 +1593,8 @@ static int c4iw_reconnect(struct c4iw_ep *ep) 


	/* find a route */

	rt = find_route(ep->com.dev,

			ep->com.cm_id->local_addr.sin_addr.s_addr,

			ep->com.cm_id->remote_addr.sin_addr.s_addr,

			ep->com.cm_id->local_addr.sin_port,

			ep->com.cm_id->remote_addr.sin_port, 0);

			laddr->sin_addr.s_addr, raddr->sin_addr.s_addr,

			laddr->sin_port, raddr->sin_port, 0);

	if (!rt) {

		pr_err("%s - cannot find route.\n", __func__);

		err = -EHOSTUNREACH;
@@ -1596,8 +1602,7 @@ static int c4iw_reconnect(struct c4iw_ep *ep) 
	}

	ep->dst = &rt->dst;



	neigh = dst_neigh_lookup(ep->dst,

			&ep->com.cm_id->remote_addr.sin_addr.s_addr);

	neigh = dst_neigh_lookup(ep->dst, &raddr->sin_addr.s_addr);

	if (!neigh) {

		pr_err("%s - cannot alloc neigh.\n", __func__);

		err = -ENOMEM;
@@ -1607,8 +1612,7 @@ static int c4iw_reconnect(struct c4iw_ep *ep) 
	/* get a l2t entry */

	if (neigh->dev->flags & IFF_LOOPBACK) {

		PDBG("%s LOOPBACK\n", __func__);

		pdev = ip_dev_find(&init_net,

				ep->com.cm_id->remote_addr.sin_addr.s_addr);

		pdev = ip_dev_find(&init_net, raddr->sin_addr.s_addr);

		ep->l2t = cxgb4_l2t_get(ep->com.dev->rdev.lldi.l2t,

				neigh, pdev, 0);

		pi = (struct port_info *)netdev_priv(pdev);
@@ -2518,6 +2522,8 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 
	struct c4iw_ep *ep;

	struct rtable *rt;

	int err = 0;

	struct sockaddr_in *laddr = (struct sockaddr_in *)&cm_id->local_addr;

	struct sockaddr_in *raddr = (struct sockaddr_in *)&cm_id->remote_addr;



	if ((conn_param->ord > c4iw_max_read_depth) ||

	    (conn_param->ird > c4iw_max_read_depth)) {
@@ -2562,17 +2568,12 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 
	insert_handle(dev, &dev->atid_idr, ep, ep->atid);



	PDBG("%s saddr 0x%x sport 0x%x raddr 0x%x rport 0x%x\n", __func__,

	     ntohl(cm_id->local_addr.sin_addr.s_addr),

	     ntohs(cm_id->local_addr.sin_port),

	     ntohl(cm_id->remote_addr.sin_addr.s_addr),

	     ntohs(cm_id->remote_addr.sin_port));

	     ntohl(laddr->sin_addr.s_addr), ntohs(laddr->sin_port),

	     ntohl(raddr->sin_addr.s_addr), ntohs(raddr->sin_port));



	/* find a route */

	rt = find_route(dev,

			cm_id->local_addr.sin_addr.s_addr,

			cm_id->remote_addr.sin_addr.s_addr,

			cm_id->local_addr.sin_port,

			cm_id->remote_addr.sin_port, 0);

	rt = find_route(dev, laddr->sin_addr.s_addr, raddr->sin_addr.s_addr,

			laddr->sin_port, raddr->sin_port, 0);

	if (!rt) {

		printk(KERN_ERR MOD "%s - cannot find route.\n", __func__);

		err = -EHOSTUNREACH;
@@ -2580,8 +2581,7 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 
	}

	ep->dst = &rt->dst;



	err = import_ep(ep, cm_id->remote_addr.sin_addr.s_addr,

			ep->dst, ep->com.dev, true);

	err = import_ep(ep, raddr->sin_addr.s_addr, ep->dst, ep->com.dev, true);

	if (err) {

		printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__);

		goto fail4;
@@ -2593,8 +2593,10 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 


	state_set(&ep->com, CONNECTING);

	ep->tos = 0;

	ep->com.local_addr = cm_id->local_addr;

	ep->com.remote_addr = cm_id->remote_addr;

	memcpy(&ep->com.local_addr, &cm_id->local_addr,

	       sizeof(ep->com.local_addr));

	memcpy(&ep->com.remote_addr, &cm_id->remote_addr,

	       sizeof(ep->com.remote_addr));



	/* send connect request to rnic */

	err = send_connect(ep);
@@ -2633,7 +2635,8 @@ int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog) 
	ep->com.cm_id = cm_id;

	ep->com.dev = dev;

	ep->backlog = backlog;

	ep->com.local_addr = cm_id->local_addr;

	memcpy(&ep->com.local_addr, &cm_id->local_addr,

	       sizeof(ep->com.local_addr));



	/*

	 * Allocate a server TID.