From: "Kalderon, Michal" <Michal.Kalderon@cavium.com>
Date: Wed, 26 Jul 2017 14:41:56 +0300
Subject: RDMA/qedr: Add iWARP connection management functions
Patch-mainline: Queued in subsystem maintainer repository
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma.git
Git-commit: e411e0587e0ddb6dae69944fac72f5d15ca89507
References: bsc#1050545 FATE#322893
Implements the iWARP connection management functions:
connect, accept, create listener and destroy listener
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/hw/qedr/main.c | 11
drivers/infiniband/hw/qedr/qedr.h | 22 -
drivers/infiniband/hw/qedr/qedr_iw_cm.c | 689 ++++++++++++++++++++++++++++++++
drivers/infiniband/hw/qedr/qedr_iw_cm.h | 12
drivers/infiniband/hw/qedr/verbs.c | 17
5 files changed, 750 insertions(+), 1 deletion(-)
--- a/drivers/infiniband/hw/qedr/main.c
+++ b/drivers/infiniband/hw/qedr/main.c
@@ -143,6 +143,12 @@ int qedr_iw_register_device(struct qedr_
dev->ibdev.iwcm = kzalloc(sizeof(*dev->ibdev.iwcm), GFP_KERNEL);
if (!dev->ibdev.iwcm)
return -ENOMEM;
+
+ dev->ibdev.iwcm->connect = qedr_iw_connect;
+ dev->ibdev.iwcm->accept = qedr_iw_accept;
+ dev->ibdev.iwcm->reject = qedr_iw_reject;
+ dev->ibdev.iwcm->create_listen = qedr_iw_create_listen;
+ dev->ibdev.iwcm->destroy_listen = qedr_iw_destroy_listen;
dev->ibdev.iwcm->add_ref = qedr_iw_qp_add_ref;
dev->ibdev.iwcm->rem_ref = qedr_iw_qp_rem_ref;
dev->ibdev.iwcm->get_qp = qedr_iw_get_qp;
@@ -294,6 +300,9 @@ static void qedr_free_resources(struct q
{
int i;
+ if (IS_IWARP(dev))
+ destroy_workqueue(dev->iwarp_wq);
+
for (i = 0; i < dev->num_cnq; i++) {
qedr_free_mem_sb(dev, &dev->sb_array[i], dev->sb_start + i);
dev->ops->common->chain_free(dev->cdev, &dev->cnq_array[i].pbl);
@@ -321,6 +330,7 @@ static int qedr_alloc_resources(struct q
if (IS_IWARP(dev)) {
spin_lock_init(&dev->idr_lock);
idr_init(&dev->qpidr);
+ dev->iwarp_wq = create_singlethread_workqueue("qedr_iwarpq");
}
/* Allocate Status blocks for CNQ */
@@ -798,6 +808,7 @@ static int qedr_init_hw(struct qedr_dev
in_params->events = &events;
in_params->cq_mode = QED_RDMA_CQ_MODE_32_BITS;
in_params->max_mtu = dev->ndev->mtu;
+ dev->iwarp_max_mtu = dev->ndev->mtu;
ether_addr_copy(&in_params->mac_addr[0], dev->ndev->dev_addr);
rc = dev->ops->rdma_init(dev->cdev, in_params);
--- a/drivers/infiniband/hw/qedr/qedr.h
+++ b/drivers/infiniband/hw/qedr/qedr.h
@@ -59,6 +59,7 @@
#define QEDR_MSG_SQ " SQ"
#define QEDR_MSG_QP " QP"
#define QEDR_MSG_GSI " GSI"
+#define QEDR_MSG_IWARP " IW"
#define QEDR_CQ_MAGIC_NUMBER (0x11223344)
@@ -166,6 +167,9 @@ struct qedr_dev {
enum qed_rdma_type rdma_type;
spinlock_t idr_lock; /* Protect qpidr data-structure */
struct idr qpidr;
+ struct workqueue_struct *iwarp_wq;
+ u16 iwarp_max_mtu;
+
unsigned long enet_state;
u8 user_dpm_enabled;
@@ -345,7 +349,7 @@ enum qedr_qp_err_bitmap {
struct qedr_qp {
struct ib_qp ibqp; /* must be first */
struct qedr_dev *dev;
-
+ struct qedr_iw_ep *ep;
struct qedr_qp_hwq_info sq;
struct qedr_qp_hwq_info rq;
@@ -403,6 +407,7 @@ struct qedr_qp {
struct qedr_userq usq;
struct qedr_userq urq;
atomic_t refcnt;
+ bool destroyed;
};
struct qedr_ah {
@@ -483,6 +488,21 @@ static inline int qedr_get_dmac(struct q
return 0;
}
+struct qedr_iw_listener {
+ struct qedr_dev *dev;
+ struct iw_cm_id *cm_id;
+ int backlog;
+ void *qed_handle;
+};
+
+struct qedr_iw_ep {
+ struct qedr_dev *dev;
+ struct iw_cm_id *cm_id;
+ struct qedr_qp *qp;
+ void *qed_context;
+ u8 during_connect;
+};
+
static inline
struct qedr_ucontext *get_qedr_ucontext(struct ib_ucontext *ibucontext)
{
--- a/drivers/infiniband/hw/qedr/qedr_iw_cm.c
+++ b/drivers/infiniband/hw/qedr/qedr_iw_cm.c
@@ -29,7 +29,696 @@
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/udp.h>
+#include <net/addrconf.h>
+#include <net/route.h>
+#include <net/ip6_route.h>
+#include <net/flow.h>
#include "qedr.h"
+#include "qedr_iw_cm.h"
+
+static inline void
+qedr_fill_sockaddr4(const struct qed_iwarp_cm_info *cm_info,
+ struct iw_cm_event *event)
+{
+ struct sockaddr_in *laddr = (struct sockaddr_in *)&event->local_addr;
+ struct sockaddr_in *raddr = (struct sockaddr_in *)&event->remote_addr;
+
+ laddr->sin_family = AF_INET;
+ raddr->sin_family = AF_INET;
+
+ laddr->sin_port = htons(cm_info->local_port);
+ raddr->sin_port = htons(cm_info->remote_port);
+
+ laddr->sin_addr.s_addr = htonl(cm_info->local_ip[0]);
+ raddr->sin_addr.s_addr = htonl(cm_info->remote_ip[0]);
+}
+
+static inline void
+qedr_fill_sockaddr6(const struct qed_iwarp_cm_info *cm_info,
+ struct iw_cm_event *event)
+{
+ struct sockaddr_in6 *laddr6 = (struct sockaddr_in6 *)&event->local_addr;
+ struct sockaddr_in6 *raddr6 =
+ (struct sockaddr_in6 *)&event->remote_addr;
+ int i;
+
+ laddr6->sin6_family = AF_INET6;
+ raddr6->sin6_family = AF_INET6;
+
+ laddr6->sin6_port = htons(cm_info->local_port);
+ raddr6->sin6_port = htons(cm_info->remote_port);
+
+ for (i = 0; i < 4; i++) {
+ laddr6->sin6_addr.in6_u.u6_addr32[i] =
+ htonl(cm_info->local_ip[i]);
+ raddr6->sin6_addr.in6_u.u6_addr32[i] =
+ htonl(cm_info->remote_ip[i]);
+ }
+}
+
+void
+qedr_iw_mpa_request(void *context, struct qed_iwarp_cm_event_params *params)
+{
+ struct qedr_iw_listener *listener = (struct qedr_iw_listener *)context;
+ struct qedr_dev *dev = listener->dev;
+ struct iw_cm_event event;
+ struct qedr_iw_ep *ep;
+
+ ep = kzalloc(sizeof(*ep), GFP_ATOMIC);
+ if (!ep)
+ return;
+
+ ep->dev = dev;
+ ep->qed_context = params->ep_context;
+
+ memset(&event, 0, sizeof(event));
+ event.event = IW_CM_EVENT_CONNECT_REQUEST;
+ event.status = params->status;
+
+ if (params->cm_info->ip_version == QED_TCP_IPV4)
+ qedr_fill_sockaddr4(params->cm_info, &event);
+ else
+ qedr_fill_sockaddr6(params->cm_info, &event);
+
+ event.provider_data = (void *)ep;
+ event.private_data = (void *)params->cm_info->private_data;
+ event.private_data_len = (u8)params->cm_info->private_data_len;
+ event.ord = params->cm_info->ord;
+ event.ird = params->cm_info->ird;
+
+ listener->cm_id->event_handler(listener->cm_id, &event);
+}
+
+void
+qedr_iw_issue_event(void *context,
+ struct qed_iwarp_cm_event_params *params,
+ enum iw_cm_event_type event_type)
+{
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
+ struct iw_cm_event event;
+
+ memset(&event, 0, sizeof(event));
+ event.status = params->status;
+ event.event = event_type;
+
+ if (params->cm_info) {
+ event.ird = params->cm_info->ird;
+ event.ord = params->cm_info->ord;
+ event.private_data_len = params->cm_info->private_data_len;
+ event.private_data = (void *)params->cm_info->private_data;
+ }
+
+ if (ep->cm_id)
+ ep->cm_id->event_handler(ep->cm_id, &event);
+}
+
+void
+qedr_iw_close_event(void *context, struct qed_iwarp_cm_event_params *params)
+{
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
+
+ if (ep->cm_id) {
+ qedr_iw_issue_event(context, params, IW_CM_EVENT_CLOSE);
+
+ ep->cm_id->rem_ref(ep->cm_id);
+ ep->cm_id = NULL;
+ }
+}
+
+void
+qedr_iw_qp_event(void *context,
+ struct qed_iwarp_cm_event_params *params,
+ enum ib_event_type ib_event, char *str)
+{
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
+ struct qedr_dev *dev = ep->dev;
+ struct ib_qp *ibqp = &ep->qp->ibqp;
+ struct ib_event event;
+
+ DP_NOTICE(dev, "QP error received: %s\n", str);
+
+ if (ibqp->event_handler) {
+ event.event = ib_event;
+ event.device = ibqp->device;
+ event.element.qp = ibqp;
+ ibqp->event_handler(&event, ibqp->qp_context);
+ }
+}
+
+struct qedr_discon_work {
+ struct work_struct work;
+ struct qedr_iw_ep *ep;
+ enum qed_iwarp_event_type event;
+ int status;
+};
+
+static void qedr_iw_disconnect_worker(struct work_struct *work)
+{
+ struct qedr_discon_work *dwork =
+ container_of(work, struct qedr_discon_work, work);
+ struct qed_rdma_modify_qp_in_params qp_params = { 0 };
+ struct qedr_iw_ep *ep = dwork->ep;
+ struct qedr_dev *dev = ep->dev;
+ struct qedr_qp *qp = ep->qp;
+ struct iw_cm_event event;
+
+ if (qp->destroyed) {
+ kfree(dwork);
+ qedr_iw_qp_rem_ref(&qp->ibqp);
+ return;
+ }
+
+ memset(&event, 0, sizeof(event));
+ event.status = dwork->status;
+ event.event = IW_CM_EVENT_DISCONNECT;
+
+ /* Success means graceful disconnect was requested. modifying
+ * to SQD is translated to graceful disconnect. O/w reset is sent
+ */
+ if (dwork->status)
+ qp_params.new_state = QED_ROCE_QP_STATE_ERR;
+ else
+ qp_params.new_state = QED_ROCE_QP_STATE_SQD;
+
+ kfree(dwork);
+
+ if (ep->cm_id)
+ ep->cm_id->event_handler(ep->cm_id, &event);
+
+ SET_FIELD(qp_params.modify_flags,
+ QED_RDMA_MODIFY_QP_VALID_NEW_STATE, 1);
+
+ dev->ops->rdma_modify_qp(dev->rdma_ctx, qp->qed_qp, &qp_params);
+
+ qedr_iw_qp_rem_ref(&qp->ibqp);
+}
+
+void
+qedr_iw_disconnect_event(void *context,
+ struct qed_iwarp_cm_event_params *params)
+{
+ struct qedr_discon_work *work;
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
+ struct qedr_dev *dev = ep->dev;
+ struct qedr_qp *qp = ep->qp;
+
+ work = kzalloc(sizeof(*work), GFP_ATOMIC);
+ if (!work)
+ return;
+
+ qedr_iw_qp_add_ref(&qp->ibqp);
+ work->ep = ep;
+ work->event = params->event;
+ work->status = params->status;
+
+ INIT_WORK(&work->work, qedr_iw_disconnect_worker);
+ queue_work(dev->iwarp_wq, &work->work);
+}
+
+static void
+qedr_iw_passive_complete(void *context,
+ struct qed_iwarp_cm_event_params *params)
+{
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
+ struct qedr_dev *dev = ep->dev;
+
+ /* We will only reach the following state if MPA_REJECT was called on
+ * passive. In this case there will be no associated QP.
+ */
+ if ((params->status == -ECONNREFUSED) && (!ep->qp)) {
+ DP_DEBUG(dev, QEDR_MSG_IWARP,
+ "PASSIVE connection refused releasing ep...\n");
+ kfree(ep);
+ return;
+ }
+
+ qedr_iw_issue_event(context, params, IW_CM_EVENT_ESTABLISHED);
+
+ if (params->status < 0)
+ qedr_iw_close_event(context, params);
+}
+
+int
+qedr_iw_mpa_reply(void *context, struct qed_iwarp_cm_event_params *params)
+{
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
+ struct qedr_dev *dev = ep->dev;
+ struct qed_iwarp_send_rtr_in rtr_in;
+
+ rtr_in.ep_context = params->ep_context;
+
+ return dev->ops->iwarp_send_rtr(dev->rdma_ctx, &rtr_in);
+}
+
+int
+qedr_iw_event_handler(void *context, struct qed_iwarp_cm_event_params *params)
+{
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
+ struct qedr_dev *dev = ep->dev;
+
+ switch (params->event) {
+ case QED_IWARP_EVENT_MPA_REQUEST:
+ qedr_iw_mpa_request(context, params);
+ break;
+ case QED_IWARP_EVENT_ACTIVE_MPA_REPLY:
+ qedr_iw_mpa_reply(context, params);
+ break;
+ case QED_IWARP_EVENT_PASSIVE_COMPLETE:
+ ep->during_connect = 0;
+ qedr_iw_passive_complete(context, params);
+ break;
+
+ case QED_IWARP_EVENT_ACTIVE_COMPLETE:
+ ep->during_connect = 0;
+ qedr_iw_issue_event(context,
+ params,
+ IW_CM_EVENT_CONNECT_REPLY);
+ if (params->status < 0) {
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
+
+ ep->cm_id->rem_ref(ep->cm_id);
+ ep->cm_id = NULL;
+ }
+ break;
+ case QED_IWARP_EVENT_DISCONNECT:
+ qedr_iw_disconnect_event(context, params);
+ break;
+ case QED_IWARP_EVENT_CLOSE:
+ ep->during_connect = 0;
+ qedr_iw_close_event(context, params);
+ break;
+ case QED_IWARP_EVENT_RQ_EMPTY:
+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
+ "QED_IWARP_EVENT_RQ_EMPTY");
+ break;
+ case QED_IWARP_EVENT_IRQ_FULL:
+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
+ "QED_IWARP_EVENT_IRQ_FULL");
+ break;
+ case QED_IWARP_EVENT_LLP_TIMEOUT:
+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
+ "QED_IWARP_EVENT_LLP_TIMEOUT");
+ break;
+ case QED_IWARP_EVENT_REMOTE_PROTECTION_ERROR:
+ qedr_iw_qp_event(context, params, IB_EVENT_QP_ACCESS_ERR,
+ "QED_IWARP_EVENT_REMOTE_PROTECTION_ERROR");
+ break;
+ case QED_IWARP_EVENT_CQ_OVERFLOW:
+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
+ "QED_IWARP_EVENT_CQ_OVERFLOW");
+ break;
+ case QED_IWARP_EVENT_QP_CATASTROPHIC:
+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
+ "QED_IWARP_EVENT_QP_CATASTROPHIC");
+ break;
+ case QED_IWARP_EVENT_LOCAL_ACCESS_ERROR:
+ qedr_iw_qp_event(context, params, IB_EVENT_QP_ACCESS_ERR,
+ "QED_IWARP_EVENT_LOCAL_ACCESS_ERROR");
+ break;
+ case QED_IWARP_EVENT_REMOTE_OPERATION_ERROR:
+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
+ "QED_IWARP_EVENT_REMOTE_OPERATION_ERROR");
+ break;
+ case QED_IWARP_EVENT_TERMINATE_RECEIVED:
+ DP_NOTICE(dev, "Got terminate message\n");
+ break;
+ default:
+ DP_NOTICE(dev, "Unknown event received %d\n", params->event);
+ break;
+ };
+ return 0;
+}
+
+static u16 qedr_iw_get_vlan_ipv4(struct qedr_dev *dev, u32 *addr)
+{
+ struct net_device *ndev;
+ u16 vlan_id = 0;
+
+ ndev = ip_dev_find(&init_net, htonl(addr[0]));
+
+ if (ndev) {
+ vlan_id = rdma_vlan_dev_vlan_id(ndev);
+ dev_put(ndev);
+ }
+ if (vlan_id == 0xffff)
+ vlan_id = 0;
+ return vlan_id;
+}
+
+static u16 qedr_iw_get_vlan_ipv6(u32 *addr)
+{
+ struct net_device *ndev = NULL;
+ struct in6_addr laddr6;
+ u16 vlan_id = 0;
+ int i;
+
+ if (!IS_ENABLED(CONFIG_IPV6))
+ return vlan_id;
+
+ for (i = 0; i < 4; i++)
+ laddr6.in6_u.u6_addr32[i] = htonl(addr[i]);
+
+ rcu_read_lock();
+ for_each_netdev_rcu(&init_net, ndev) {
+ if (ipv6_chk_addr(&init_net, &laddr6, ndev, 1)) {
+ vlan_id = rdma_vlan_dev_vlan_id(ndev);
+ break;
+ }
+ }
+
+ rcu_read_unlock();
+ if (vlan_id == 0xffff)
+ vlan_id = 0;
+
+ return vlan_id;
+}
+
+static int
+qedr_addr4_resolve(struct qedr_dev *dev,
+ struct sockaddr_in *src_in,
+ struct sockaddr_in *dst_in, u8 *dst_mac)
+{
+ __be32 src_ip = src_in->sin_addr.s_addr;
+ __be32 dst_ip = dst_in->sin_addr.s_addr;
+ struct neighbour *neigh = NULL;
+ struct rtable *rt = NULL;
+ int rc = 0;
+
+ rt = ip_route_output(&init_net, dst_ip, src_ip, 0, 0);
+ if (IS_ERR(rt)) {
+ DP_ERR(dev, "ip_route_output returned error\n");
+ return -EINVAL;
+ }
+
+ neigh = dst_neigh_lookup(&rt->dst, &dst_ip);
+
+ if (neigh) {
+ rcu_read_lock();
+ if (neigh->nud_state & NUD_VALID) {
+ ether_addr_copy(dst_mac, neigh->ha);
+ DP_DEBUG(dev, QEDR_MSG_QP, "mac_addr=[%pM]\n", dst_mac);
+ } else {
+ neigh_event_send(neigh, NULL);
+ }
+ rcu_read_unlock();
+ neigh_release(neigh);
+ }
+
+ ip_rt_put(rt);
+
+ return rc;
+}
+
+static int
+qedr_addr6_resolve(struct qedr_dev *dev,
+ struct sockaddr_in6 *src_in,
+ struct sockaddr_in6 *dst_in, u8 *dst_mac)
+{
+ struct neighbour *neigh = NULL;
+ struct dst_entry *dst;
+ struct flowi6 fl6;
+ int rc = 0;
+
+ memset(&fl6, 0, sizeof(fl6));
+ fl6.daddr = dst_in->sin6_addr;
+ fl6.saddr = src_in->sin6_addr;
+
+ dst = ip6_route_output(&init_net, NULL, &fl6);
+
+ if ((!dst) || dst->error) {
+ if (dst) {
+ dst_release(dst);
+ DP_ERR(dev,
+ "ip6_route_output returned dst->error = %d\n",
+ dst->error);
+ }
+ return -EINVAL;
+ }
+ neigh = dst_neigh_lookup(dst, &dst_in);
+
+ if (neigh) {
+ rcu_read_lock();
+ if (neigh->nud_state & NUD_VALID) {
+ ether_addr_copy(dst_mac, neigh->ha);
+ DP_DEBUG(dev, QEDR_MSG_QP, "mac_addr=[%pM]\n", dst_mac);
+ } else {
+ neigh_event_send(neigh, NULL);
+ }
+ rcu_read_unlock();
+ neigh_release(neigh);
+ }
+
+ dst_release(dst);
+
+ return rc;
+}
+
+int qedr_iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
+{
+ struct qedr_dev *dev = get_qedr_dev(cm_id->device);
+ struct qed_iwarp_connect_out out_params;
+ struct qed_iwarp_connect_in in_params;
+ struct qed_iwarp_cm_info *cm_info;
+ struct sockaddr_in6 *laddr6;
+ struct sockaddr_in6 *raddr6;
+ struct sockaddr_in *laddr;
+ struct sockaddr_in *raddr;
+ struct qedr_iw_ep *ep;
+ struct qedr_qp *qp;
+ int rc = 0;
+ int i;
+
+ qp = idr_find(&dev->qpidr, conn_param->qpn);
+
+ laddr = (struct sockaddr_in *)&cm_id->local_addr;
+ raddr = (struct sockaddr_in *)&cm_id->remote_addr;
+ laddr6 = (struct sockaddr_in6 *)&cm_id->local_addr;
+ raddr6 = (struct sockaddr_in6 *)&cm_id->remote_addr;
+
+ DP_DEBUG(dev, QEDR_MSG_IWARP,
+ "Connect source address: %pISpc, remote address: %pISpc\n",
+ &cm_id->local_addr, &cm_id->remote_addr);
+
+ if (!laddr->sin_port || !raddr->sin_port)
+ return -EINVAL;
+
+ ep = kzalloc(sizeof(*ep), GFP_KERNEL);
+ if (!ep)
+ return -ENOMEM;
+
+ ep->dev = dev;
+ ep->qp = qp;
+ qp->ep = ep;
+ cm_id->add_ref(cm_id);
+ ep->cm_id = cm_id;
+
+ in_params.event_cb = qedr_iw_event_handler;
+ in_params.cb_context = ep;
+
+ cm_info = &in_params.cm_info;
+ memset(cm_info->local_ip, 0, sizeof(cm_info->local_ip));
+ memset(cm_info->remote_ip, 0, sizeof(cm_info->remote_ip));
+
+ if (cm_id->remote_addr.ss_family == AF_INET) {
+ cm_info->ip_version = QED_TCP_IPV4;
+
+ cm_info->remote_ip[0] = ntohl(raddr->sin_addr.s_addr);
+ cm_info->local_ip[0] = ntohl(laddr->sin_addr.s_addr);
+ cm_info->remote_port = ntohs(raddr->sin_port);
+ cm_info->local_port = ntohs(laddr->sin_port);
+ cm_info->vlan = qedr_iw_get_vlan_ipv4(dev, cm_info->local_ip);
+
+ rc = qedr_addr4_resolve(dev, laddr, raddr,
+ (u8 *)in_params.remote_mac_addr);
+
+ in_params.mss = dev->iwarp_max_mtu -
+ (sizeof(struct iphdr) + sizeof(struct tcphdr));
+
+ } else {
+ in_params.cm_info.ip_version = QED_TCP_IPV6;
+
+ for (i = 0; i < 4; i++) {
+ cm_info->remote_ip[i] =
+ ntohl(raddr6->sin6_addr.in6_u.u6_addr32[i]);
+ cm_info->local_ip[i] =
+ ntohl(laddr6->sin6_addr.in6_u.u6_addr32[i]);
+ }
+
+ cm_info->local_port = ntohs(laddr6->sin6_port);
+ cm_info->remote_port = ntohs(raddr6->sin6_port);
+
+ in_params.mss = dev->iwarp_max_mtu -
+ (sizeof(struct ipv6hdr) + sizeof(struct tcphdr));
+
+ cm_info->vlan = qedr_iw_get_vlan_ipv6(cm_info->local_ip);
+
+ rc = qedr_addr6_resolve(dev, laddr6, raddr6,
+ (u8 *)in_params.remote_mac_addr);
+ }
+ if (rc)
+ goto err;
+
+ DP_DEBUG(dev, QEDR_MSG_IWARP,
+ "ord = %d ird=%d private_data=%p private_data_len=%d rq_psn=%d\n",
+ conn_param->ord, conn_param->ird, conn_param->private_data,
+ conn_param->private_data_len, qp->rq_psn);
+
+ cm_info->ord = conn_param->ord;
+ cm_info->ird = conn_param->ird;
+ cm_info->private_data = conn_param->private_data;
+ cm_info->private_data_len = conn_param->private_data_len;
+ in_params.qp = qp->qed_qp;
+ memcpy(in_params.local_mac_addr, dev->ndev->dev_addr, ETH_ALEN);
+
+ ep->during_connect = 1;
+ rc = dev->ops->iwarp_connect(dev->rdma_ctx, &in_params, &out_params);
+ if (rc)
+ goto err;
+
+ return rc;
+
+err:
+ cm_id->rem_ref(cm_id);
+ kfree(ep);
+ return rc;
+}
+
+int qedr_iw_create_listen(struct iw_cm_id *cm_id, int backlog)
+{
+ struct qedr_dev *dev = get_qedr_dev(cm_id->device);
+ struct qedr_iw_listener *listener;
+ struct qed_iwarp_listen_in iparams;
+ struct qed_iwarp_listen_out oparams;
+ struct sockaddr_in *laddr;
+ struct sockaddr_in6 *laddr6;
+ int rc;
+ int i;
+
+ laddr = (struct sockaddr_in *)&cm_id->local_addr;
+ laddr6 = (struct sockaddr_in6 *)&cm_id->local_addr;
+
+ DP_DEBUG(dev, QEDR_MSG_IWARP,
+ "Create Listener address: %pISpc\n", &cm_id->local_addr);
+
+ listener = kzalloc(sizeof(*listener), GFP_KERNEL);
+ if (!listener)
+ return -ENOMEM;
+
+ listener->dev = dev;
+ cm_id->add_ref(cm_id);
+ listener->cm_id = cm_id;
+ listener->backlog = backlog;
+
+ iparams.cb_context = listener;
+ iparams.event_cb = qedr_iw_event_handler;
+ iparams.max_backlog = backlog;
+
+ if (cm_id->local_addr.ss_family == AF_INET) {
+ iparams.ip_version = QED_TCP_IPV4;
+ memset(iparams.ip_addr, 0, sizeof(iparams.ip_addr));
+
+ iparams.ip_addr[0] = ntohl(laddr->sin_addr.s_addr);
+ iparams.port = ntohs(laddr->sin_port);
+ iparams.vlan = qedr_iw_get_vlan_ipv4(dev, iparams.ip_addr);
+ } else {
+ iparams.ip_version = QED_TCP_IPV6;
+
+ for (i = 0; i < 4; i++) {
+ iparams.ip_addr[i] =
+ ntohl(laddr6->sin6_addr.in6_u.u6_addr32[i]);
+ }
+
+ iparams.port = ntohs(laddr6->sin6_port);
+
+ iparams.vlan = qedr_iw_get_vlan_ipv6(iparams.ip_addr);
+ }
+ rc = dev->ops->iwarp_create_listen(dev->rdma_ctx, &iparams, &oparams);
+ if (rc)
+ goto err;
+
+ listener->qed_handle = oparams.handle;
+ cm_id->provider_data = listener;
+ return rc;
+
+err:
+ cm_id->rem_ref(cm_id);
+ kfree(listener);
+ return rc;
+}
+
+int qedr_iw_destroy_listen(struct iw_cm_id *cm_id)
+{
+ struct qedr_iw_listener *listener = cm_id->provider_data;
+ struct qedr_dev *dev = get_qedr_dev(cm_id->device);
+ int rc = 0;
+
+ if (listener->qed_handle)
+ rc = dev->ops->iwarp_destroy_listen(dev->rdma_ctx,
+ listener->qed_handle);
+
+ cm_id->rem_ref(cm_id);
+ return rc;
+}
+
+int qedr_iw_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
+{
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)cm_id->provider_data;
+ struct qedr_dev *dev = ep->dev;
+ struct qedr_qp *qp;
+ struct qed_iwarp_accept_in params;
+ int rc;
+
+ DP_DEBUG(dev, QEDR_MSG_IWARP, "Accept on qpid=%d\n", conn_param->qpn);
+
+ qp = idr_find(&dev->qpidr, conn_param->qpn);
+ if (!qp) {
+ DP_ERR(dev, "Invalid QP number %d\n", conn_param->qpn);
+ return -EINVAL;
+ }
+
+ ep->qp = qp;
+ qp->ep = ep;
+ cm_id->add_ref(cm_id);
+ ep->cm_id = cm_id;
+
+ params.ep_context = ep->qed_context;
+ params.cb_context = ep;
+ params.qp = ep->qp->qed_qp;
+ params.private_data = conn_param->private_data;
+ params.private_data_len = conn_param->private_data_len;
+ params.ird = conn_param->ird;
+ params.ord = conn_param->ord;
+
+ ep->during_connect = 1;
+ rc = dev->ops->iwarp_accept(dev->rdma_ctx, ¶ms);
+ if (rc)
+ goto err;
+
+ return rc;
+err:
+ ep->during_connect = 0;
+ cm_id->rem_ref(cm_id);
+ return rc;
+}
+
+int qedr_iw_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
+{
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)cm_id->provider_data;
+ struct qedr_dev *dev = ep->dev;
+ struct qed_iwarp_reject_in params;
+
+ params.ep_context = ep->qed_context;
+ params.cb_context = ep;
+ params.private_data = pdata;
+ params.private_data_len = pdata_len;
+ ep->qp = NULL;
+
+ return dev->ops->iwarp_reject(dev->rdma_ctx, ¶ms);
+}
+
void qedr_iw_qp_add_ref(struct ib_qp *ibqp)
{
struct qedr_qp *qp = get_qedr_qp(ibqp);
--- a/drivers/infiniband/hw/qedr/qedr_iw_cm.h
+++ b/drivers/infiniband/hw/qedr/qedr_iw_cm.h
@@ -30,6 +30,18 @@
* SOFTWARE.
*/
#include <rdma/iw_cm.h>
+
+int qedr_iw_connect(struct iw_cm_id *cm_id,
+ struct iw_cm_conn_param *conn_param);
+
+int qedr_iw_create_listen(struct iw_cm_id *cm_id, int backlog);
+
+int qedr_iw_destroy_listen(struct iw_cm_id *cm_id);
+
+int qedr_iw_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
+
+int qedr_iw_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len);
+
void qedr_iw_qp_add_ref(struct ib_qp *qp);
void qedr_iw_qp_rem_ref(struct ib_qp *qp);
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -2260,6 +2260,23 @@ int qedr_destroy_qp(struct ib_qp *ibqp)
/* Change the QP state to ERROR */
qedr_modify_qp(ibqp, &attr, attr_mask, NULL);
}
+ } else {
+ /* Wait for the connect/accept to complete */
+ if (qp->ep) {
+ int wait_count = 1;
+
+ while (qp->ep->during_connect) {
+ DP_DEBUG(dev, QEDR_MSG_QP,
+ "Still in during connect/accept\n");
+
+ msleep(100);
+ if (wait_count++ > 200) {
+ DP_NOTICE(dev,
+ "during connect timeout\n");
+ break;
+ }
+ }
+ }
}
if (qp->qp_type == IB_QPT_GSI)