[openib-general] [PATCH v4 2/2] iWARP Core Changes.
Steve Wise
swise at opengridcomputing.com
Thu Aug 3 11:43:03 PDT 2006
Roland/Sean,
I'll fix all these and retest, then resubmit...
Comments below...
Steve.
On Thu, 2006-08-03 at 11:11 -0700, Sean Hefty wrote:
> Steve Wise wrote:
> > diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
> > index d294bbc..83f84ef 100644
> > --- a/drivers/infiniband/core/addr.c
> > +++ b/drivers/infiniband/core/addr.c
> > @@ -32,6 +32,7 @@ #include <linux/mutex.h>
> > #include <linux/inetdevice.h>
> > #include <linux/workqueue.h>
> > #include <linux/if_arp.h>
> > +#include <linux/inetdevice.h>
>
> File is included 3 lines up.
>
Oops. I'll fix this.
> > diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
> > index e05ca2c..061858c 100644
> > #include <linux/module.h>
> > #include <linux/errno.h>
> > #include <linux/slab.h>
> > -#include <linux/sched.h> /* INIT_WORK, schedule_work(), flush_scheduled_work() */
>
> I'm guessing that the include isn't currently needed, since none of the other
> changes to the file should have removed its dependency. Should this be put into
> a separate patch?
>
And this.
> > +static int iw_conn_req_handler(struct iw_cm_id *cm_id,
> > + struct iw_cm_event *iw_event)
> > +{
> > + struct rdma_cm_id *new_cm_id;
> > + struct rdma_id_private *listen_id, *conn_id;
> > + struct sockaddr_in *sin;
> > + struct net_device *dev = NULL;
> > + int ret;
> > +
> > + listen_id = cm_id->context;
> > + atomic_inc(&listen_id->dev_remove);
> > + if (!cma_comp(listen_id, CMA_LISTEN)) {
> > + ret = -ECONNABORTED;
> > + goto out;
> > + }
> > +
> > + /* Create a new RDMA id for the new IW CM ID */
> > + new_cm_id = rdma_create_id(listen_id->id.event_handler,
> > + listen_id->id.context,
> > + RDMA_PS_TCP);
> > + if (!new_cm_id) {
> > + ret = -ENOMEM;
> > + goto out;
> > + }
> > + conn_id = container_of(new_cm_id, struct rdma_id_private, id);
> > + atomic_inc(&conn_id->dev_remove);
>
> This is not released in error cases. See below.
>
> > + conn_id->state = CMA_CONNECT;
> > +
> > + dev = ip_dev_find(iw_event->local_addr.sin_addr.s_addr);
> > + if (!dev) {
> > + ret = -EADDRNOTAVAIL;
>
> cma_release_remove(conn_id);
>
> > + rdma_destroy_id(new_cm_id);
> > + goto out;
> > + }
> > + ret = rdma_copy_addr(&conn_id->id.route.addr.dev_addr, dev, NULL);
> > + if (ret) {
>
> cma_release_remove(conn_id);
>
> > + rdma_destroy_id(new_cm_id);
> > + goto out;
> > + }
> > +
> > + ret = cma_acquire_dev(conn_id);
> > + if (ret) {
>
> cma_release_remove(conn_id);
>
I'll fix these too.
> > + rdma_destroy_id(new_cm_id);
> > + goto out;
> > + }
> > +
> > + conn_id->cm_id.iw = cm_id;
> > + cm_id->context = conn_id;
> > + cm_id->cm_handler = cma_iw_handler;
> > +
> > + sin = (struct sockaddr_in *) &new_cm_id->route.addr.src_addr;
> > + *sin = iw_event->local_addr;
> > + sin = (struct sockaddr_in *) &new_cm_id->route.addr.dst_addr;
> > + *sin = iw_event->remote_addr;
> > +
> > + ret = cma_notify_user(conn_id, RDMA_CM_EVENT_CONNECT_REQUEST, 0,
> > + iw_event->private_data,
> > + iw_event->private_data_len);
> > + if (ret) {
> > + /* User wants to destroy the CM ID */
> > + conn_id->cm_id.iw = NULL;
> > + cma_exch(conn_id, CMA_DESTROYING);
> > + cma_release_remove(conn_id);
> > + rdma_destroy_id(&conn_id->id);
> > + }
> > +
> > +out:
> > + if (!dev)
> > + dev_put(dev);
>
> Shouldn't this be: if (dev)?
>
yup. This was added (incorrecty by me) during the review process...
> > + cma_release_remove(listen_id);
> > + return ret;
> > +}
> > @@ -1357,8 +1552,8 @@ static int cma_resolve_loopback(struct r
> > ib_addr_set_dgid(&id_priv->id.route.addr.dev_addr, &gid);
> >
> > if (cma_zero_addr(&id_priv->id.route.addr.src_addr)) {
> > - src_in = (struct sockaddr_in *)&id_priv->id.route.addr.src_addr;
> > - dst_in = (struct sockaddr_in *)&id_priv->id.route.addr.dst_addr;
> > + src_in = (struct sockaddr_in *) &id_priv->id.route.addr.src_addr;
> > + dst_in = (struct sockaddr_in *) &id_priv->id.route.addr.dst_addr;
>
> trivial spacing change only
>
right.
> > +static inline void iw_addr_get_sgid(struct rdma_dev_addr* rda,
> > + union ib_gid *gid)
> > +{
> > + memcpy(gid, rda->src_dev_addr, sizeof *gid);
> > +}
> > +
> > +static inline union ib_gid* iw_addr_get_dgid(struct rdma_dev_addr* rda)
> > +{
> > + return (union ib_gid *) rda->dst_dev_addr;
> > +}
>
> Minor personal nit: for consistency with the rest of the file, can you use
> dev_addr in place of rda?
>
okay.
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