/**
* ipath_reset_qp - initialize the QP state to the reset state
* @qp: the QP to reset
+ * @type: the QP type
*/
-static void ipath_reset_qp(struct ipath_qp *qp)
+static void ipath_reset_qp(struct ipath_qp *qp, enum ib_qp_type type)
{
qp->remote_qpn = 0;
qp->qkey = 0;
qp->s_busy = 0;
qp->s_flags &= IPATH_S_SIGNAL_REQ_WR;
qp->s_hdrwords = 0;
+ qp->s_wqe = NULL;
qp->s_psn = 0;
qp->r_psn = 0;
qp->r_msn = 0;
- if (qp->ibqp.qp_type == IB_QPT_RC) {
+ if (type == IB_QPT_RC) {
qp->s_state = IB_OPCODE_RC_SEND_LAST;
qp->r_state = IB_OPCODE_RC_SEND_LAST;
} else {
* @err: the receive completion error to signal if a RWQE is active
*
* Flushes both send and receive work queues.
+ * Returns true if last WQE event should be generated.
* The QP s_lock should be held and interrupts disabled.
*/
-void ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err)
+int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err)
{
struct ipath_ibdev *dev = to_idev(qp->ibqp.device);
struct ib_wc wc;
+ int ret = 0;
- ipath_dbg("QP%d/%d in error state\n",
- qp->ibqp.qp_num, qp->remote_qpn);
+ ipath_dbg("QP%d/%d in error state (%d)\n",
+ qp->ibqp.qp_num, qp->remote_qpn, err);
spin_lock(&dev->pending_lock);
- /* XXX What if its already removed by the timeout code? */
if (!list_empty(&qp->timerwait))
list_del_init(&qp->timerwait);
if (!list_empty(&qp->piowait))
wc.wr_id = qp->r_wr_id;
wc.opcode = IB_WC_RECV;
wc.status = err;
- ipath_cq_enter(to_icq(qp->ibqp.send_cq), &wc, 1);
+ ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc, 1);
}
wc.status = IB_WC_WR_FLUSH_ERR;
wq->tail = tail;
spin_unlock(&qp->r_rq.lock);
- }
+ } else if (qp->ibqp.event_handler)
+ ret = 1;
+
+ return ret;
}
/**
struct ipath_qp *qp = to_iqp(ibqp);
enum ib_qp_state cur_state, new_state;
unsigned long flags;
+ int lastwqe = 0;
int ret;
spin_lock_irqsave(&qp->s_lock, flags);
goto inval;
/*
- * Note: the chips support a maximum MTU of 4096, but the driver
- * hasn't implemented this feature yet, so don't allow Path MTU
- * values greater than 2048.
+ * don't allow invalid Path MTU values or greater than 2048
+ * unless we are configured for a 4KB MTU
*/
- if (attr_mask & IB_QP_PATH_MTU)
- if (attr->path_mtu > IB_MTU_2048)
- goto inval;
+ if ((attr_mask & IB_QP_PATH_MTU) &&
+ (ib_mtu_enum_to_int(attr->path_mtu) == -1 ||
+ (attr->path_mtu > IB_MTU_2048 && !ipath_mtu4096)))
+ goto inval;
if (attr_mask & IB_QP_PATH_MIG_STATE)
if (attr->path_mig_state != IB_MIG_MIGRATED &&
switch (new_state) {
case IB_QPS_RESET:
- ipath_reset_qp(qp);
+ ipath_reset_qp(qp, ibqp->qp_type);
break;
case IB_QPS_ERR:
- ipath_error_qp(qp, IB_WC_WR_FLUSH_ERR);
+ lastwqe = ipath_error_qp(qp, IB_WC_WR_FLUSH_ERR);
break;
default:
qp->state = new_state;
spin_unlock_irqrestore(&qp->s_lock, flags);
+ if (lastwqe) {
+ struct ib_event ev;
+
+ ev.device = qp->ibqp.device;
+ ev.element.qp = &qp->ibqp;
+ ev.event = IB_EVENT_QP_LAST_WQE_REACHED;
+ qp->ibqp.event_handler(&ev, qp->ibqp.qp_context);
+ }
ret = 0;
goto bail;
attr->port_num = 1;
attr->timeout = qp->timeout;
attr->retry_cnt = qp->s_retry_cnt;
- attr->rnr_retry = qp->s_rnr_retry;
+ attr->rnr_retry = qp->s_rnr_retry_cnt;
attr->alt_port_num = 0;
attr->alt_timeout = 0;
size_t sz;
struct ib_qp *ret;
- if (init_attr->cap.max_send_sge > ib_ipath_max_sges ||
- init_attr->cap.max_recv_sge > ib_ipath_max_sges ||
- init_attr->cap.max_send_wr > ib_ipath_max_qp_wrs ||
- init_attr->cap.max_recv_wr > ib_ipath_max_qp_wrs) {
- ret = ERR_PTR(-ENOMEM);
+ if (init_attr->create_flags) {
+ ret = ERR_PTR(-EINVAL);
goto bail;
}
- if (init_attr->cap.max_send_sge +
- init_attr->cap.max_recv_sge +
- init_attr->cap.max_send_wr +
- init_attr->cap.max_recv_wr == 0) {
+ if (init_attr->cap.max_send_sge > ib_ipath_max_sges ||
+ init_attr->cap.max_send_wr > ib_ipath_max_qp_wrs) {
ret = ERR_PTR(-EINVAL);
goto bail;
}
+ /* Check receive queue parameters if no SRQ is specified. */
+ if (!init_attr->srq) {
+ if (init_attr->cap.max_recv_sge > ib_ipath_max_sges ||
+ init_attr->cap.max_recv_wr > ib_ipath_max_qp_wrs) {
+ ret = ERR_PTR(-EINVAL);
+ goto bail;
+ }
+ if (init_attr->cap.max_send_sge +
+ init_attr->cap.max_send_wr +
+ init_attr->cap.max_recv_sge +
+ init_attr->cap.max_recv_wr == 0) {
+ ret = ERR_PTR(-EINVAL);
+ goto bail;
+ }
+ }
+
switch (init_attr->qp_type) {
case IB_QPT_UC:
case IB_QPT_RC:
+ case IB_QPT_UD:
+ case IB_QPT_SMI:
+ case IB_QPT_GSI:
sz = sizeof(struct ipath_sge) *
init_attr->cap.max_send_sge +
sizeof(struct ipath_swqe);
ret = ERR_PTR(-ENOMEM);
goto bail;
}
- /* FALLTHROUGH */
- case IB_QPT_UD:
- case IB_QPT_SMI:
- case IB_QPT_GSI:
sz = sizeof(*qp);
if (init_attr->srq) {
struct ipath_srq *srq = to_isrq(init_attr->srq);
spin_lock_init(&qp->r_rq.lock);
atomic_set(&qp->refcount, 0);
init_waitqueue_head(&qp->wait);
- tasklet_init(&qp->s_task, ipath_do_ruc_send,
- (unsigned long)qp);
+ tasklet_init(&qp->s_task, ipath_do_send, (unsigned long)qp);
INIT_LIST_HEAD(&qp->piowait);
INIT_LIST_HEAD(&qp->timerwait);
qp->state = IB_QPS_RESET;
init_attr->qp_type);
if (err) {
ret = ERR_PTR(err);
- goto bail_rwq;
+ vfree(qp->r_rq.wq);
+ goto bail_qp;
}
qp->ip = NULL;
- ipath_reset_qp(qp);
+ ipath_reset_qp(qp, init_attr->qp_type);
break;
default:
* See ipath_mmap() for details.
*/
if (udata && udata->outlen >= sizeof(__u64)) {
- int err;
-
if (!qp->r_rq.wq) {
__u64 offset = 0;
sizeof(offset));
if (err) {
ret = ERR_PTR(err);
- goto bail_rwq;
+ goto bail_ip;
}
} else {
u32 s = sizeof(struct ipath_rwq) +
qp->r_rq.wq);
if (!qp->ip) {
ret = ERR_PTR(-ENOMEM);
- goto bail_rwq;
+ goto bail_ip;
}
err = ib_copy_to_udata(udata, &(qp->ip->offset),
goto bail;
bail_ip:
- kfree(qp->ip);
-bail_rwq:
- vfree(qp->r_rq.wq);
+ if (qp->ip)
+ kref_put(&qp->ip->ref, ipath_release_mmap_info);
+ else
+ vfree(qp->r_rq.wq);
+ ipath_free_qp(&dev->qp_table, qp);
bail_qp:
kfree(qp);
bail_swq:
qp->ibqp.qp_num, qp->remote_qpn, wc->status);
spin_lock(&dev->pending_lock);
- /* XXX What if its already removed by the timeout code? */
if (!list_empty(&qp->timerwait))
list_del_init(&qp->timerwait);
if (!list_empty(&qp->piowait))
projects / linux-2.6-block.git / blobdiff