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Diffstat (limited to 'drivers/infiniband/hw/cxgb3')
-rw-r--r--drivers/infiniband/hw/cxgb3/cxio_hal.c5
-rw-r--r--drivers/infiniband/hw/cxgb3/cxio_wr.h6
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch.c37
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_cm.c68
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_cm.h9
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_mem.c21
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_provider.c52
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_qp.c1
8 files changed, 132 insertions, 67 deletions
diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c
index 62f9cf2f94ec..72ed3396b721 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
@@ -852,7 +852,9 @@ int cxio_rdma_init(struct cxio_rdev *rdev_p, struct t3_rdma_init_attr *attr)
wqe->qpcaps = attr->qpcaps;
wqe->ulpdu_size = cpu_to_be16(attr->tcp_emss);
wqe->rqe_count = cpu_to_be16(attr->rqe_count);
- wqe->flags_rtr_type = cpu_to_be16(attr->flags|V_RTR_TYPE(attr->rtr_type));
+ wqe->flags_rtr_type = cpu_to_be16(attr->flags |
+ V_RTR_TYPE(attr->rtr_type) |
+ V_CHAN(attr->chan));
wqe->ord = cpu_to_be32(attr->ord);
wqe->ird = cpu_to_be32(attr->ird);
wqe->qp_dma_addr = cpu_to_be64(attr->qp_dma_addr);
@@ -1032,6 +1034,7 @@ err3:
err2:
cxio_hal_destroy_ctrl_qp(rdev_p);
err1:
+ rdev_p->t3cdev_p->ulp = NULL;
list_del(&rdev_p->entry);
return err;
}
diff --git a/drivers/infiniband/hw/cxgb3/cxio_wr.h b/drivers/infiniband/hw/cxgb3/cxio_wr.h
index 32e3b1461d81..a197a5b7ac7f 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_wr.h
+++ b/drivers/infiniband/hw/cxgb3/cxio_wr.h
@@ -327,6 +327,11 @@ enum rdma_init_rtr_types {
#define V_RTR_TYPE(x) ((x) << S_RTR_TYPE)
#define G_RTR_TYPE(x) ((((x) >> S_RTR_TYPE)) & M_RTR_TYPE)
+#define S_CHAN 4
+#define M_CHAN 0x3
+#define V_CHAN(x) ((x) << S_CHAN)
+#define G_CHAN(x) ((((x) >> S_CHAN)) & M_CHAN)
+
struct t3_rdma_init_attr {
u32 tid;
u32 qpid;
@@ -346,6 +351,7 @@ struct t3_rdma_init_attr {
u16 flags;
u16 rqe_count;
u32 irs;
+ u32 chan;
};
struct t3_rdma_init_wr {
diff --git a/drivers/infiniband/hw/cxgb3/iwch.c b/drivers/infiniband/hw/cxgb3/iwch.c
index 26fc0a4eaa74..b0ea0105ddf6 100644
--- a/drivers/infiniband/hw/cxgb3/iwch.c
+++ b/drivers/infiniband/hw/cxgb3/iwch.c
@@ -51,7 +51,7 @@ cxgb3_cpl_handler_func t3c_handlers[NUM_CPL_CMDS];
static void open_rnic_dev(struct t3cdev *);
static void close_rnic_dev(struct t3cdev *);
-static void iwch_err_handler(struct t3cdev *, u32, u32);
+static void iwch_event_handler(struct t3cdev *, u32, u32);
struct cxgb3_client t3c_client = {
.name = "iw_cxgb3",
@@ -59,7 +59,7 @@ struct cxgb3_client t3c_client = {
.remove = close_rnic_dev,
.handlers = t3c_handlers,
.redirect = iwch_ep_redirect,
- .err_handler = iwch_err_handler
+ .event_handler = iwch_event_handler
};
static LIST_HEAD(dev_list);
@@ -105,11 +105,9 @@ static void rnic_init(struct iwch_dev *rnicp)
static void open_rnic_dev(struct t3cdev *tdev)
{
struct iwch_dev *rnicp;
- static int vers_printed;
PDBG("%s t3cdev %p\n", __func__, tdev);
- if (!vers_printed++)
- printk(KERN_INFO MOD "Chelsio T3 RDMA Driver - version %s\n",
+ printk_once(KERN_INFO MOD "Chelsio T3 RDMA Driver - version %s\n",
DRV_VERSION);
rnicp = (struct iwch_dev *)ib_alloc_device(sizeof(*rnicp));
if (!rnicp) {
@@ -162,21 +160,36 @@ static void close_rnic_dev(struct t3cdev *tdev)
mutex_unlock(&dev_mutex);
}
-static void iwch_err_handler(struct t3cdev *tdev, u32 status, u32 error)
+static void iwch_event_handler(struct t3cdev *tdev, u32 evt, u32 port_id)
{
struct cxio_rdev *rdev = tdev->ulp;
- struct iwch_dev *rnicp = rdev_to_iwch_dev(rdev);
+ struct iwch_dev *rnicp;
struct ib_event event;
+ u32 portnum = port_id + 1;
- if (status == OFFLOAD_STATUS_DOWN) {
+ if (!rdev)
+ return;
+ rnicp = rdev_to_iwch_dev(rdev);
+ switch (evt) {
+ case OFFLOAD_STATUS_DOWN: {
rdev->flags = CXIO_ERROR_FATAL;
-
- event.device = &rnicp->ibdev;
event.event = IB_EVENT_DEVICE_FATAL;
- event.element.port_num = 0;
- ib_dispatch_event(&event);
+ break;
+ }
+ case OFFLOAD_PORT_DOWN: {
+ event.event = IB_EVENT_PORT_ERR;
+ break;
+ }
+ case OFFLOAD_PORT_UP: {
+ event.event = IB_EVENT_PORT_ACTIVE;
+ break;
+ }
}
+ event.device = &rnicp->ibdev;
+ event.element.port_num = portnum;
+ ib_dispatch_event(&event);
+
return;
}
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c
index 52d7bb0c2a12..66b41351910a 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_cm.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c
@@ -286,7 +286,7 @@ void __free_ep(struct kref *kref)
ep = container_of(container_of(kref, struct iwch_ep_common, kref),
struct iwch_ep, com);
PDBG("%s ep %p state %s\n", __func__, ep, states[state_read(&ep->com)]);
- if (ep->com.flags & RELEASE_RESOURCES) {
+ if (test_bit(RELEASE_RESOURCES, &ep->com.flags)) {
cxgb3_remove_tid(ep->com.tdev, (void *)ep, ep->hwtid);
dst_release(ep->dst);
l2t_release(L2DATA(ep->com.tdev), ep->l2t);
@@ -297,7 +297,7 @@ void __free_ep(struct kref *kref)
static void release_ep_resources(struct iwch_ep *ep)
{
PDBG("%s ep %p tid %d\n", __func__, ep, ep->hwtid);
- ep->com.flags |= RELEASE_RESOURCES;
+ set_bit(RELEASE_RESOURCES, &ep->com.flags);
put_ep(&ep->com);
}
@@ -786,10 +786,12 @@ static void connect_request_upcall(struct iwch_ep *ep)
event.private_data_len = ep->plen;
event.private_data = ep->mpa_pkt + sizeof(struct mpa_message);
event.provider_data = ep;
- if (state_read(&ep->parent_ep->com) != DEAD)
+ if (state_read(&ep->parent_ep->com) != DEAD) {
+ get_ep(&ep->com);
ep->parent_ep->com.cm_id->event_handler(
ep->parent_ep->com.cm_id,
&event);
+ }
put_ep(&ep->parent_ep->com);
ep->parent_ep = NULL;
}
@@ -1156,8 +1158,7 @@ static int abort_rpl(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
* We get 2 abort replies from the HW. The first one must
* be ignored except for scribbling that we need one more.
*/
- if (!(ep->com.flags & ABORT_REQ_IN_PROGRESS)) {
- ep->com.flags |= ABORT_REQ_IN_PROGRESS;
+ if (!test_and_set_bit(ABORT_REQ_IN_PROGRESS, &ep->com.flags)) {
return CPL_RET_BUF_DONE;
}
@@ -1477,10 +1478,14 @@ static int peer_close(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
/*
* We're gonna mark this puppy DEAD, but keep
* the reference on it until the ULP accepts or
- * rejects the CR.
+ * rejects the CR. Also wake up anyone waiting
+ * in rdma connection migration (see iwch_accept_cr()).
*/
__state_set(&ep->com, CLOSING);
- get_ep(&ep->com);
+ ep->com.rpl_done = 1;
+ ep->com.rpl_err = -ECONNRESET;
+ PDBG("waking up ep %p\n", ep);
+ wake_up(&ep->com.waitq);
break;
case MPA_REP_SENT:
__state_set(&ep->com, CLOSING);
@@ -1561,8 +1566,7 @@ static int peer_abort(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
* We get 2 peer aborts from the HW. The first one must
* be ignored except for scribbling that we need one more.
*/
- if (!(ep->com.flags & PEER_ABORT_IN_PROGRESS)) {
- ep->com.flags |= PEER_ABORT_IN_PROGRESS;
+ if (!test_and_set_bit(PEER_ABORT_IN_PROGRESS, &ep->com.flags)) {
return CPL_RET_BUF_DONE;
}
@@ -1589,9 +1593,13 @@ static int peer_abort(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
/*
* We're gonna mark this puppy DEAD, but keep
* the reference on it until the ULP accepts or
- * rejects the CR.
+ * rejects the CR. Also wake up anyone waiting
+ * in rdma connection migration (see iwch_accept_cr()).
*/
- get_ep(&ep->com);
+ ep->com.rpl_done = 1;
+ ep->com.rpl_err = -ECONNRESET;
+ PDBG("waking up ep %p\n", ep);
+ wake_up(&ep->com.waitq);
break;
case MORIBUND:
case CLOSING:
@@ -1797,6 +1805,7 @@ int iwch_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
err = send_mpa_reject(ep, pdata, pdata_len);
err = iwch_ep_disconnect(ep, 0, GFP_KERNEL);
}
+ put_ep(&ep->com);
return 0;
}
@@ -1810,8 +1819,10 @@ int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
struct iwch_qp *qp = get_qhp(h, conn_param->qpn);
PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);
- if (state_read(&ep->com) == DEAD)
- return -ECONNRESET;
+ if (state_read(&ep->com) == DEAD) {
+ err = -ECONNRESET;
+ goto err;
+ }
BUG_ON(state_read(&ep->com) != MPA_REQ_RCVD);
BUG_ON(!qp);
@@ -1819,15 +1830,14 @@ int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
if ((conn_param->ord > qp->rhp->attr.max_rdma_read_qp_depth) ||
(conn_param->ird > qp->rhp->attr.max_rdma_reads_per_qp)) {
abort_connection(ep, NULL, GFP_KERNEL);
- return -EINVAL;
+ err = -EINVAL;
+ goto err;
}
cm_id->add_ref(cm_id);
ep->com.cm_id = cm_id;
ep->com.qp = qp;
- ep->com.rpl_done = 0;
- ep->com.rpl_err = 0;
ep->ird = conn_param->ird;
ep->ord = conn_param->ord;
@@ -1836,8 +1846,6 @@ int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
PDBG("%s %d ird %d ord %d\n", __func__, __LINE__, ep->ird, ep->ord);
- get_ep(&ep->com);
-
/* bind QP to EP and move to RTS */
attrs.mpa_attr = ep->mpa_attr;
attrs.max_ird = ep->ird;
@@ -1855,30 +1863,31 @@ int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
err = iwch_modify_qp(ep->com.qp->rhp,
ep->com.qp, mask, &attrs, 1);
if (err)
- goto err;
+ goto err1;
/* if needed, wait for wr_ack */
if (iwch_rqes_posted(qp)) {
wait_event(ep->com.waitq, ep->com.rpl_done);
err = ep->com.rpl_err;
if (err)
- goto err;
+ goto err1;
}
err = send_mpa_reply(ep, conn_param->private_data,
conn_param->private_data_len);
if (err)
- goto err;
+ goto err1;
state_set(&ep->com, FPDU_MODE);
established_upcall(ep);
put_ep(&ep->com);
return 0;
-err:
+err1:
ep->com.cm_id = NULL;
ep->com.qp = NULL;
cm_id->rem_ref(cm_id);
+err:
put_ep(&ep->com);
return err;
}
@@ -2097,14 +2106,17 @@ int iwch_ep_disconnect(struct iwch_ep *ep, int abrupt, gfp_t gfp)
ep->com.state = CLOSING;
start_ep_timer(ep);
}
+ set_bit(CLOSE_SENT, &ep->com.flags);
break;
case CLOSING:
- close = 1;
- if (abrupt) {
- stop_ep_timer(ep);
- ep->com.state = ABORTING;
- } else
- ep->com.state = MORIBUND;
+ if (!test_and_set_bit(CLOSE_SENT, &ep->com.flags)) {
+ close = 1;
+ if (abrupt) {
+ stop_ep_timer(ep);
+ ep->com.state = ABORTING;
+ } else
+ ep->com.state = MORIBUND;
+ }
break;
case MORIBUND:
case ABORTING:
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.h b/drivers/infiniband/hw/cxgb3/iwch_cm.h
index 43c0aea7eadc..b9efadfffb4f 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_cm.h
+++ b/drivers/infiniband/hw/cxgb3/iwch_cm.h
@@ -145,9 +145,10 @@ enum iwch_ep_state {
};
enum iwch_ep_flags {
- PEER_ABORT_IN_PROGRESS = (1 << 0),
- ABORT_REQ_IN_PROGRESS = (1 << 1),
- RELEASE_RESOURCES = (1 << 2),
+ PEER_ABORT_IN_PROGRESS = 0,
+ ABORT_REQ_IN_PROGRESS = 1,
+ RELEASE_RESOURCES = 2,
+ CLOSE_SENT = 3,
};
struct iwch_ep_common {
@@ -162,7 +163,7 @@ struct iwch_ep_common {
wait_queue_head_t waitq;
int rpl_done;
int rpl_err;
- u32 flags;
+ unsigned long flags;
};
struct iwch_listen_ep {
diff --git a/drivers/infiniband/hw/cxgb3/iwch_mem.c b/drivers/infiniband/hw/cxgb3/iwch_mem.c
index ec49a5cbdebb..e1ec65ebb016 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_mem.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_mem.c
@@ -39,7 +39,7 @@
#include "iwch.h"
#include "iwch_provider.h"
-static void iwch_finish_mem_reg(struct iwch_mr *mhp, u32 stag)
+static int iwch_finish_mem_reg(struct iwch_mr *mhp, u32 stag)
{
u32 mmid;
@@ -47,14 +47,15 @@ static void iwch_finish_mem_reg(struct iwch_mr *mhp, u32 stag)
mhp->attr.stag = stag;
mmid = stag >> 8;
mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
- insert_handle(mhp->rhp, &mhp->rhp->mmidr, mhp, mmid);
PDBG("%s mmid 0x%x mhp %p\n", __func__, mmid, mhp);
+ return insert_handle(mhp->rhp, &mhp->rhp->mmidr, mhp, mmid);
}
int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php,
struct iwch_mr *mhp, int shift)
{
u32 stag;
+ int ret;
if (cxio_register_phys_mem(&rhp->rdev,
&stag, mhp->attr.pdid,
@@ -66,9 +67,11 @@ int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php,
mhp->attr.pbl_size, mhp->attr.pbl_addr))
return -ENOMEM;
- iwch_finish_mem_reg(mhp, stag);
-
- return 0;
+ ret = iwch_finish_mem_reg(mhp, stag);
+ if (ret)
+ cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
+ mhp->attr.pbl_addr);
+ return ret;
}
int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php,
@@ -77,6 +80,7 @@ int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php,
int npages)
{
u32 stag;
+ int ret;
/* We could support this... */
if (npages > mhp->attr.pbl_size)
@@ -93,9 +97,12 @@ int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php,
mhp->attr.pbl_size, mhp->attr.pbl_addr))
return -ENOMEM;
- iwch_finish_mem_reg(mhp, stag);
+ ret = iwch_finish_mem_reg(mhp, stag);
+ if (ret)
+ cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
+ mhp->attr.pbl_addr);
- return 0;
+ return ret;
}
int iwch_alloc_pbl(struct iwch_mr *mhp, int npages)
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index e2a63214008a..6895523779d0 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -195,7 +195,11 @@ static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int ve
spin_lock_init(&chp->lock);
atomic_set(&chp->refcnt, 1);
init_waitqueue_head(&chp->wait);
- insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid);
+ if (insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid)) {
+ cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
+ kfree(chp);
+ return ERR_PTR(-ENOMEM);
+ }
if (ucontext) {
struct iwch_mm_entry *mm;
@@ -750,7 +754,11 @@ static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
mhp->attr.stag = stag;
mmid = (stag) >> 8;
mhp->ibmw.rkey = stag;
- insert_handle(rhp, &rhp->mmidr, mhp, mmid);
+ if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) {
+ cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
+ kfree(mhp);
+ return ERR_PTR(-ENOMEM);
+ }
PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
return &(mhp->ibmw);
}
@@ -778,37 +786,43 @@ static struct ib_mr *iwch_alloc_fast_reg_mr(struct ib_pd *pd, int pbl_depth)
struct iwch_mr *mhp;
u32 mmid;
u32 stag = 0;
- int ret;
+ int ret = 0;
php = to_iwch_pd(pd);
rhp = php->rhp;
mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
if (!mhp)
- return ERR_PTR(-ENOMEM);
+ goto err;
mhp->rhp = rhp;
ret = iwch_alloc_pbl(mhp, pbl_depth);
- if (ret) {
- kfree(mhp);
- return ERR_PTR(ret);
- }
+ if (ret)
+ goto err1;
mhp->attr.pbl_size = pbl_depth;
ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid,
mhp->attr.pbl_size, mhp->attr.pbl_addr);
- if (ret) {
- iwch_free_pbl(mhp);
- kfree(mhp);
- return ERR_PTR(ret);
- }
+ if (ret)
+ goto err2;
mhp->attr.pdid = php->pdid;
mhp->attr.type = TPT_NON_SHARED_MR;
mhp->attr.stag = stag;
mhp->attr.state = 1;
mmid = (stag) >> 8;
mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
- insert_handle(rhp, &rhp->mmidr, mhp, mmid);
+ if (insert_handle(rhp, &rhp->mmidr, mhp, mmid))
+ goto err3;
+
PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
return &(mhp->ibmr);
+err3:
+ cxio_dereg_mem(&rhp->rdev, stag, mhp->attr.pbl_size,
+ mhp->attr.pbl_addr);
+err2:
+ iwch_free_pbl(mhp);
+err1:
+ kfree(mhp);
+err:
+ return ERR_PTR(ret);
}
static struct ib_fast_reg_page_list *iwch_alloc_fastreg_pbl(
@@ -961,7 +975,13 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
spin_lock_init(&qhp->lock);
init_waitqueue_head(&qhp->wait);
atomic_set(&qhp->refcnt, 1);
- insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid);
+
+ if (insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid)) {
+ cxio_destroy_qp(&rhp->rdev, &qhp->wq,
+ ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
+ kfree(qhp);
+ return ERR_PTR(-ENOMEM);
+ }
if (udata) {
@@ -1418,6 +1438,7 @@ int iwch_register_device(struct iwch_dev *dev)
bail2:
ib_unregister_device(&dev->ibdev);
bail1:
+ kfree(dev->ibdev.iwcm);
return ret;
}
@@ -1430,5 +1451,6 @@ void iwch_unregister_device(struct iwch_dev *dev)
device_remove_file(&dev->ibdev.dev,
iwch_class_attributes[i]);
ib_unregister_device(&dev->ibdev);
+ kfree(dev->ibdev.iwcm);
return;
}
diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index 27bbdc8e773a..6e8653471941 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -889,6 +889,7 @@ static int rdma_init(struct iwch_dev *rhp, struct iwch_qp *qhp,
init_attr.qp_dma_size = (1UL << qhp->wq.size_log2);
init_attr.rqe_count = iwch_rqes_posted(qhp);
init_attr.flags = qhp->attr.mpa_attr.initiator ? MPA_INITIATOR : 0;
+ init_attr.chan = qhp->ep->l2t->smt_idx;
if (peer2peer) {
init_attr.rtr_type = RTR_READ;
if (init_attr.ord == 0 && qhp->attr.mpa_attr.initiator)