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path: root/drivers/infiniband/hw/cxgb4/cm.c
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Diffstat (limited to 'drivers/infiniband/hw/cxgb4/cm.c')
-rw-r--r--drivers/infiniband/hw/cxgb4/cm.c69
1 files changed, 41 insertions, 28 deletions
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 4d232bdf9e97..0f3b1193d5f8 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -331,20 +331,23 @@ static void remove_ep_tid(struct c4iw_ep *ep)
{
unsigned long flags;
- spin_lock_irqsave(&ep->com.dev->lock, flags);
- _remove_handle(ep->com.dev, &ep->com.dev->hwtid_idr, ep->hwtid, 0);
- if (idr_is_empty(&ep->com.dev->hwtid_idr))
+ xa_lock_irqsave(&ep->com.dev->hwtids, flags);
+ __xa_erase(&ep->com.dev->hwtids, ep->hwtid);
+ if (xa_empty(&ep->com.dev->hwtids))
wake_up(&ep->com.dev->wait);
- spin_unlock_irqrestore(&ep->com.dev->lock, flags);
+ xa_unlock_irqrestore(&ep->com.dev->hwtids, flags);
}
-static void insert_ep_tid(struct c4iw_ep *ep)
+static int insert_ep_tid(struct c4iw_ep *ep)
{
unsigned long flags;
+ int err;
+
+ xa_lock_irqsave(&ep->com.dev->hwtids, flags);
+ err = __xa_insert(&ep->com.dev->hwtids, ep->hwtid, ep, GFP_KERNEL);
+ xa_unlock_irqrestore(&ep->com.dev->hwtids, flags);
- spin_lock_irqsave(&ep->com.dev->lock, flags);
- _insert_handle(ep->com.dev, &ep->com.dev->hwtid_idr, ep, ep->hwtid, 0);
- spin_unlock_irqrestore(&ep->com.dev->lock, flags);
+ return err;
}
/*
@@ -355,11 +358,11 @@ static struct c4iw_ep *get_ep_from_tid(struct c4iw_dev *dev, unsigned int tid)
struct c4iw_ep *ep;
unsigned long flags;
- spin_lock_irqsave(&dev->lock, flags);
- ep = idr_find(&dev->hwtid_idr, tid);
+ xa_lock_irqsave(&dev->hwtids, flags);
+ ep = xa_load(&dev->hwtids, tid);
if (ep)
c4iw_get_ep(&ep->com);
- spin_unlock_irqrestore(&dev->lock, flags);
+ xa_unlock_irqrestore(&dev->hwtids, flags);
return ep;
}
@@ -372,11 +375,11 @@ static struct c4iw_listen_ep *get_ep_from_stid(struct c4iw_dev *dev,
struct c4iw_listen_ep *ep;
unsigned long flags;
- spin_lock_irqsave(&dev->lock, flags);
- ep = idr_find(&dev->stid_idr, stid);
+ xa_lock_irqsave(&dev->stids, flags);
+ ep = xa_load(&dev->stids, stid);
if (ep)
c4iw_get_ep(&ep->com);
- spin_unlock_irqrestore(&dev->lock, flags);
+ xa_unlock_irqrestore(&dev->stids, flags);
return ep;
}
@@ -457,6 +460,8 @@ static struct sk_buff *get_skb(struct sk_buff *skb, int len, gfp_t gfp)
skb_reset_transport_header(skb);
} else {
skb = alloc_skb(len, gfp);
+ if (!skb)
+ return NULL;
}
t4_set_arp_err_handler(skb, NULL, NULL);
return skb;
@@ -555,7 +560,7 @@ static void act_open_req_arp_failure(void *handle, struct sk_buff *skb)
cxgb4_clip_release(ep->com.dev->rdev.lldi.ports[0],
(const u32 *)&sin6->sin6_addr.s6_addr, 1);
}
- remove_handle(ep->com.dev, &ep->com.dev->atid_idr, ep->atid);
+ xa_erase_irq(&ep->com.dev->atids, ep->atid);
cxgb4_free_atid(ep->com.dev->rdev.lldi.tids, ep->atid);
queue_arp_failure_cpl(ep, skb, FAKE_CPL_PUT_EP_SAFE);
}
@@ -1235,7 +1240,7 @@ static int act_establish(struct c4iw_dev *dev, struct sk_buff *skb)
set_emss(ep, tcp_opt);
/* dealloc the atid */
- remove_handle(ep->com.dev, &ep->com.dev->atid_idr, atid);
+ xa_erase_irq(&ep->com.dev->atids, atid);
cxgb4_free_atid(t, atid);
set_bit(ACT_ESTAB, &ep->com.history);
@@ -2184,7 +2189,9 @@ static int c4iw_reconnect(struct c4iw_ep *ep)
err = -ENOMEM;
goto fail2;
}
- insert_handle(ep->com.dev, &ep->com.dev->atid_idr, ep, ep->atid);
+ err = xa_insert_irq(&ep->com.dev->atids, ep->atid, ep, GFP_KERNEL);
+ if (err)
+ goto fail2a;
/* find a route */
if (ep->com.cm_id->m_local_addr.ss_family == AF_INET) {
@@ -2236,7 +2243,8 @@ static int c4iw_reconnect(struct c4iw_ep *ep)
fail4:
dst_release(ep->dst);
fail3:
- remove_handle(ep->com.dev, &ep->com.dev->atid_idr, ep->atid);
+ xa_erase_irq(&ep->com.dev->atids, ep->atid);
+fail2a:
cxgb4_free_atid(ep->com.dev->rdev.lldi.tids, ep->atid);
fail2:
/*
@@ -2319,8 +2327,7 @@ static int act_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
(const u32 *)
&sin6->sin6_addr.s6_addr, 1);
}
- remove_handle(ep->com.dev, &ep->com.dev->atid_idr,
- atid);
+ xa_erase_irq(&ep->com.dev->atids, atid);
cxgb4_free_atid(t, atid);
dst_release(ep->dst);
cxgb4_l2t_release(ep->l2t);
@@ -2357,7 +2364,7 @@ fail:
cxgb4_remove_tid(ep->com.dev->rdev.lldi.tids, 0, GET_TID(rpl),
ep->com.local_addr.ss_family);
- remove_handle(ep->com.dev, &ep->com.dev->atid_idr, atid);
+ xa_erase_irq(&ep->com.dev->atids, atid);
cxgb4_free_atid(t, atid);
dst_release(ep->dst);
cxgb4_l2t_release(ep->l2t);
@@ -2947,7 +2954,7 @@ out:
(const u32 *)&sin6->sin6_addr.s6_addr,
1);
}
- remove_handle(ep->com.dev, &ep->com.dev->hwtid_idr, ep->hwtid);
+ xa_erase_irq(&ep->com.dev->hwtids, ep->hwtid);
cxgb4_remove_tid(ep->com.dev->rdev.lldi.tids, 0, ep->hwtid,
ep->com.local_addr.ss_family);
dst_release(ep->dst);
@@ -3342,7 +3349,9 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
err = -ENOMEM;
goto fail2;
}
- insert_handle(dev, &dev->atid_idr, ep, ep->atid);
+ err = xa_insert_irq(&dev->atids, ep->atid, ep, GFP_KERNEL);
+ if (err)
+ goto fail5;
memcpy(&ep->com.local_addr, &cm_id->m_local_addr,
sizeof(ep->com.local_addr));
@@ -3430,7 +3439,8 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
fail4:
dst_release(ep->dst);
fail3:
- remove_handle(ep->com.dev, &ep->com.dev->atid_idr, ep->atid);
+ xa_erase_irq(&ep->com.dev->atids, ep->atid);
+fail5:
cxgb4_free_atid(ep->com.dev->rdev.lldi.tids, ep->atid);
fail2:
skb_queue_purge(&ep->com.ep_skb_list);
@@ -3553,7 +3563,9 @@ int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog)
err = -ENOMEM;
goto fail2;
}
- insert_handle(dev, &dev->stid_idr, ep, ep->stid);
+ err = xa_insert_irq(&dev->stids, ep->stid, ep, GFP_KERNEL);
+ if (err)
+ goto fail3;
state_set(&ep->com, LISTEN);
if (ep->com.local_addr.ss_family == AF_INET)
@@ -3564,7 +3576,8 @@ int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog)
cm_id->provider_data = ep;
goto out;
}
- remove_handle(ep->com.dev, &ep->com.dev->stid_idr, ep->stid);
+ xa_erase_irq(&ep->com.dev->stids, ep->stid);
+fail3:
cxgb4_free_stid(ep->com.dev->rdev.lldi.tids, ep->stid,
ep->com.local_addr.ss_family);
fail2:
@@ -3603,7 +3616,7 @@ int c4iw_destroy_listen(struct iw_cm_id *cm_id)
cxgb4_clip_release(ep->com.dev->rdev.lldi.ports[0],
(const u32 *)&sin6->sin6_addr.s6_addr, 1);
}
- remove_handle(ep->com.dev, &ep->com.dev->stid_idr, ep->stid);
+ xa_erase_irq(&ep->com.dev->stids, ep->stid);
cxgb4_free_stid(ep->com.dev->rdev.lldi.tids, ep->stid,
ep->com.local_addr.ss_family);
done:
@@ -3763,7 +3776,7 @@ static void active_ofld_conn_reply(struct c4iw_dev *dev, struct sk_buff *skb,
cxgb4_clip_release(ep->com.dev->rdev.lldi.ports[0],
(const u32 *)&sin6->sin6_addr.s6_addr, 1);
}
- remove_handle(dev, &dev->atid_idr, atid);
+ xa_erase_irq(&dev->atids, atid);
cxgb4_free_atid(dev->rdev.lldi.tids, atid);
dst_release(ep->dst);
cxgb4_l2t_release(ep->l2t);
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