From: Steve Wise <swise@opengridcomputing.com>
Date: Tue, 26 Sep 2017 13:12:16 -0700
Subject: iw_cxgb4: allocate wait object for each ep object
Patch-mainline: v4.15-rc1
Git-commit: ef885dc66c29dd8e6f6a12f164ed11237323c234
References: bsc#1064802 bsc#1066129
Remove the embedded c4iw_wr_wait object in preparation for correctly
handling timeouts.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/hw/cxgb4/cm.c | 38 +++++++++++++++++++--------------
drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 2 -
drivers/infiniband/hw/cxgb4/qp.c | 8 +++---
3 files changed, 28 insertions(+), 20 deletions(-)
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -318,11 +318,18 @@ static void *alloc_ep(int size, gfp_t gf
epc = kzalloc(size, gfp);
if (epc) {
+ epc->wr_waitp = kzalloc(sizeof(*epc->wr_waitp), gfp);
+ if (!epc->wr_waitp) {
+ kfree(epc);
+ epc = NULL;
+ goto out;
+ }
kref_init(&epc->kref);
mutex_init(&epc->mutex);
- c4iw_init_wr_wait(&epc->wr_wait);
+ c4iw_init_wr_wait(epc->wr_waitp);
}
pr_debug("alloc ep %p\n", epc);
+out:
return epc;
}
@@ -407,6 +414,7 @@ void _c4iw_free_ep(struct kref *kref)
}
if (!skb_queue_empty(&ep->com.ep_skb_list))
skb_queue_purge(&ep->com.ep_skb_list);
+ kfree(ep->com.wr_waitp);
kfree(ep);
}
@@ -1872,7 +1880,7 @@ static int abort_rpl(struct c4iw_dev *de
mutex_lock(&ep->com.mutex);
switch (ep->com.state) {
case ABORTING:
- c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
+ c4iw_wake_up(ep->com.wr_waitp, -ECONNRESET);
__state_set(&ep->com, DEAD);
release = 1;
break;
@@ -2100,7 +2108,7 @@ static int c4iw_reconnect(struct c4iw_ep
pr_debug("qp %p cm_id %p\n", ep->com.qp, ep->com.cm_id);
init_timer(&ep->timer);
- c4iw_init_wr_wait(&ep->com.wr_wait);
+ c4iw_init_wr_wait(ep->com.wr_waitp);
/* When MPA revision is different on nodes, the node with MPA_rev=2
* tries to reconnect with MPA_rev 1 for the same EP through
@@ -2319,7 +2327,7 @@ static int pass_open_rpl(struct c4iw_dev
}
pr_debug("ep %p status %d error %d\n", ep,
rpl->status, status2errno(rpl->status));
- c4iw_wake_up(&ep->com.wr_wait, status2errno(rpl->status));
+ c4iw_wake_up(ep->com.wr_waitp, status2errno(rpl->status));
c4iw_put_ep(&ep->com);
out:
return 0;
@@ -2336,7 +2344,7 @@ static int close_listsrv_rpl(struct c4iw
goto out;
}
pr_debug("ep %p\n", ep);
- c4iw_wake_up(&ep->com.wr_wait, status2errno(rpl->status));
+ c4iw_wake_up(ep->com.wr_waitp, status2errno(rpl->status));
c4iw_put_ep(&ep->com);
out:
return 0;
@@ -2671,12 +2679,12 @@ static int peer_close(struct c4iw_dev *d
*/
__state_set(&ep->com, CLOSING);
pr_debug("waking up ep %p tid %u\n", ep, ep->hwtid);
- c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
+ c4iw_wake_up(ep->com.wr_waitp, -ECONNRESET);
break;
case MPA_REP_SENT:
__state_set(&ep->com, CLOSING);
pr_debug("waking up ep %p tid %u\n", ep, ep->hwtid);
- c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
+ c4iw_wake_up(ep->com.wr_waitp, -ECONNRESET);
break;
case FPDU_MODE:
start_ep_timer(ep);
@@ -2758,7 +2766,7 @@ static int peer_abort(struct c4iw_dev *d
* MPA_REQ_SENT
*/
if (ep->com.state != MPA_REQ_SENT)
- c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
+ c4iw_wake_up(ep->com.wr_waitp, -ECONNRESET);
mutex_lock(&ep->com.mutex);
switch (ep->com.state) {
@@ -3346,14 +3354,14 @@ static int create_server6(struct c4iw_de
if (err)
return err;
}
- c4iw_init_wr_wait(&ep->com.wr_wait);
+ c4iw_init_wr_wait(ep->com.wr_waitp);
err = cxgb4_create_server6(ep->com.dev->rdev.lldi.ports[0],
ep->stid, &sin6->sin6_addr,
sin6->sin6_port,
ep->com.dev->rdev.lldi.rxq_ids[0]);
if (!err)
err = c4iw_wait_for_reply(&ep->com.dev->rdev,
- &ep->com.wr_wait,
+ ep->com.wr_waitp,
0, 0, __func__);
else if (err > 0)
err = net_xmit_errno(err);
@@ -3389,13 +3397,13 @@ static int create_server4(struct c4iw_de
}
} while (err == -EBUSY);
} else {
- c4iw_init_wr_wait(&ep->com.wr_wait);
+ c4iw_init_wr_wait(ep->com.wr_waitp);
err = cxgb4_create_server(ep->com.dev->rdev.lldi.ports[0],
ep->stid, sin->sin_addr.s_addr, sin->sin_port,
0, ep->com.dev->rdev.lldi.rxq_ids[0]);
if (!err)
err = c4iw_wait_for_reply(&ep->com.dev->rdev,
- &ep->com.wr_wait,
+ ep->com.wr_waitp,
0, 0, __func__);
else if (err > 0)
err = net_xmit_errno(err);
@@ -3487,13 +3495,13 @@ int c4iw_destroy_listen(struct iw_cm_id
ep->com.dev->rdev.lldi.rxq_ids[0], 0);
} else {
struct sockaddr_in6 *sin6;
- c4iw_init_wr_wait(&ep->com.wr_wait);
+ c4iw_init_wr_wait(ep->com.wr_waitp);
err = cxgb4_remove_server(
ep->com.dev->rdev.lldi.ports[0], ep->stid,
ep->com.dev->rdev.lldi.rxq_ids[0], 0);
if (err)
goto done;
- err = c4iw_wait_for_reply(&ep->com.dev->rdev, &ep->com.wr_wait,
+ err = c4iw_wait_for_reply(&ep->com.dev->rdev, ep->com.wr_waitp,
0, 0, __func__);
sin6 = (struct sockaddr_in6 *)&ep->com.local_addr;
cxgb4_clip_release(ep->com.dev->rdev.lldi.ports[0],
@@ -4216,7 +4224,7 @@ static int peer_abort_intr(struct c4iw_d
}
pr_debug("ep %p tid %u state %u\n", ep, ep->hwtid, ep->com.state);
- c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
+ c4iw_wake_up(ep->com.wr_waitp, -ECONNRESET);
out:
sched(dev, skb);
return 0;
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -842,7 +842,7 @@ struct c4iw_ep_common {
struct mutex mutex;
struct sockaddr_storage local_addr;
struct sockaddr_storage remote_addr;
- struct c4iw_wr_wait wr_wait;
+ struct c4iw_wr_wait *wr_waitp;
unsigned long flags;
unsigned long history;
};
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -1355,14 +1355,14 @@ static int rdma_fini(struct c4iw_dev *rh
wqe->flowid_len16 = cpu_to_be32(
FW_WR_FLOWID_V(ep->hwtid) |
FW_WR_LEN16_V(DIV_ROUND_UP(sizeof(*wqe), 16)));
- wqe->cookie = (uintptr_t)&ep->com.wr_wait;
+ wqe->cookie = (uintptr_t)ep->com.wr_waitp;
wqe->u.fini.type = FW_RI_TYPE_FINI;
ret = c4iw_ofld_send(&rhp->rdev, skb);
if (ret)
goto out;
- ret = c4iw_wait_for_reply(&rhp->rdev, &ep->com.wr_wait, qhp->ep->hwtid,
+ ret = c4iw_wait_for_reply(&rhp->rdev, ep->com.wr_waitp, qhp->ep->hwtid,
qhp->wq.sq.qid, __func__);
out:
pr_debug("ret %d\n", ret);
@@ -1425,7 +1425,7 @@ static int rdma_init(struct c4iw_dev *rh
FW_WR_FLOWID_V(qhp->ep->hwtid) |
FW_WR_LEN16_V(DIV_ROUND_UP(sizeof(*wqe), 16)));
- wqe->cookie = (uintptr_t)&qhp->ep->com.wr_wait;
+ wqe->cookie = (uintptr_t)qhp->ep->com.wr_waitp;
wqe->u.init.type = FW_RI_TYPE_INIT;
wqe->u.init.mpareqbit_p2ptype =
@@ -1466,7 +1466,7 @@ static int rdma_init(struct c4iw_dev *rh
if (ret)
goto err1;
- ret = c4iw_wait_for_reply(&rhp->rdev, &qhp->ep->com.wr_wait,
+ ret = c4iw_wait_for_reply(&rhp->rdev, qhp->ep->com.wr_waitp,
qhp->ep->hwtid, qhp->wq.sq.qid, __func__);
if (!ret)
goto out;