* as qpt_mask here instead of adding the mask field to
* rvt_qpn_table.
*/
-static u16 qpt_mask;
+u16 qpt_mask;
static inline unsigned mk_qpn(struct rvt_qpn_table *qpt,
struct rvt_qpn_map *map, unsigned off)
* Allocate the next available QPN or
* zero/one for QP type IB_QPT_SMI/IB_QPT_GSI.
*/
-static int alloc_qpn(struct qib_devdata *dd, struct rvt_qpn_table *qpt,
- enum ib_qp_type type, u8 port, gfp_t gfp)
+int alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
+ enum ib_qp_type type, u8 port, gfp_t gfp)
{
u32 i, offset, max_scan, qpn;
struct rvt_qpn_map *map;
u32 ret;
+ struct qib_ibdev *verbs_dev = container_of(rdi, struct qib_ibdev, rdi);
+ struct qib_devdata *dd = container_of(verbs_dev, struct qib_devdata,
+ verbs_dev);
if (type == IB_QPT_SMI || type == IB_QPT_GSI) {
unsigned n;
/**
* qib_free_all_qps - check for QPs still in use
- * @qpt: the QP table to empty
- *
- * There should not be any QPs still in use.
- * Free memory for table.
*/
-unsigned qib_free_all_qps(struct qib_devdata *dd)
+unsigned qib_free_all_qps(struct rvt_dev_info *rdi)
{
- struct qib_ibdev *dev = &dd->verbs_dev;
- unsigned long flags;
- struct rvt_qp *qp;
+ struct qib_ibdev *verbs_dev = container_of(rdi, struct qib_ibdev, rdi);
+ struct qib_devdata *dd = container_of(verbs_dev, struct qib_devdata,
+ verbs_dev);
unsigned n, qp_inuse = 0;
- spinlock_t *qpt_lock_ptr; /* Pointer to make checkpatch happy */
for (n = 0; n < dd->num_pports; n++) {
struct qib_ibport *ibp = &dd->pport[n].ibport_data;
qp_inuse++;
rcu_read_unlock();
}
-
- spin_lock_irqsave(&dev->rdi.qp_dev->qpt_lock, flags);
- qpt_lock_ptr = &dev->rdi.qp_dev->qpt_lock;
- for (n = 0; n < dev->rdi.qp_dev->qp_table_size; n++) {
- qp = rcu_dereference_protected(dev->rdi.qp_dev->qp_table[n],
- lockdep_is_held(qpt_lock_ptr));
- RCU_INIT_POINTER(dev->rdi.qp_dev->qp_table[n], NULL);
-
- for (; qp; qp = rcu_dereference_protected(qp->next,
- lockdep_is_held(qpt_lock_ptr)))
- qp_inuse++;
- }
- spin_unlock_irqrestore(&dev->rdi.qp_dev->qpt_lock, flags);
- synchronize_rcu();
-
return qp_inuse;
}
return qp;
}
-/**
- * qib_reset_qp - initialize the QP state to the reset state
- * @qp: the QP to reset
- * @type: the QP type
- */
-static void qib_reset_qp(struct rvt_qp *qp, enum ib_qp_type type)
+void notify_qp_reset(struct rvt_qp *qp)
{
struct qib_qp_priv *priv = qp->priv;
- qp->remote_qpn = 0;
- qp->qkey = 0;
- qp->qp_access_flags = 0;
+
atomic_set(&priv->s_dma_busy, 0);
- qp->s_flags &= RVT_S_SIGNAL_REQ_WR;
- qp->s_hdrwords = 0;
- qp->s_wqe = NULL;
- qp->s_draining = 0;
- qp->s_next_psn = 0;
- qp->s_last_psn = 0;
- qp->s_sending_psn = 0;
- qp->s_sending_hpsn = 0;
- qp->s_psn = 0;
- qp->r_psn = 0;
- qp->r_msn = 0;
- if (type == IB_QPT_RC) {
- qp->s_state = IB_OPCODE_RC_SEND_LAST;
- qp->r_state = IB_OPCODE_RC_SEND_LAST;
- } else {
- qp->s_state = IB_OPCODE_UC_SEND_LAST;
- qp->r_state = IB_OPCODE_UC_SEND_LAST;
- }
- qp->s_ack_state = IB_OPCODE_RC_ACKNOWLEDGE;
- qp->r_nak_state = 0;
- qp->r_aflags = 0;
- qp->r_flags = 0;
- qp->s_head = 0;
- qp->s_tail = 0;
- qp->s_cur = 0;
- qp->s_acked = 0;
- qp->s_last = 0;
- qp->s_ssn = 1;
- qp->s_lsn = 0;
- qp->s_mig_state = IB_MIG_MIGRATED;
- memset(qp->s_ack_queue, 0, sizeof(qp->s_ack_queue));
- qp->r_head_ack_queue = 0;
- qp->s_tail_ack_queue = 0;
- qp->s_num_rd_atomic = 0;
- if (qp->r_rq.wq) {
- qp->r_rq.wq->head = 0;
- qp->r_rq.wq->tail = 0;
- }
- qp->r_sge.num_sge = 0;
}
static void clear_mr_refs(struct rvt_qp *qp, int clr_sends)
spin_lock_irq(&qp->r_lock);
spin_lock(&qp->s_lock);
clear_mr_refs(qp, 1);
- qib_reset_qp(qp, ibqp->qp_type);
+ rvt_reset_qp(&dev->rdi, qp, ibqp->qp_type);
}
break;
return cpu_to_be32(aeth);
}
-/**
- * qib_create_qp - create a queue pair for a device
- * @ibpd: the protection domain who's device we create the queue pair for
- * @init_attr: the attributes of the queue pair
- * @udata: user data for libibverbs.so
- *
- * Returns the queue pair on success, otherwise returns an errno.
- *
- * Called by the ib_create_qp() core verbs function.
- */
-struct ib_qp *qib_create_qp(struct ib_pd *ibpd,
- struct ib_qp_init_attr *init_attr,
- struct ib_udata *udata)
+void *qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp, gfp_t gfp)
{
- struct rvt_qp *qp;
- int err;
- struct rvt_swqe *swq = NULL;
- struct qib_ibdev *dev;
- struct qib_devdata *dd;
- size_t sz;
- size_t sg_list_sz;
- struct ib_qp *ret;
- gfp_t gfp;
struct qib_qp_priv *priv;
- if (init_attr->cap.max_send_sge > ib_qib_max_sges ||
- init_attr->cap.max_send_wr > ib_qib_max_qp_wrs ||
- init_attr->create_flags & ~(IB_QP_CREATE_USE_GFP_NOIO))
- return ERR_PTR(-EINVAL);
-
- /* GFP_NOIO is applicable in RC QPs only */
- if (init_attr->create_flags & IB_QP_CREATE_USE_GFP_NOIO &&
- init_attr->qp_type != IB_QPT_RC)
- return ERR_PTR(-EINVAL);
-
- gfp = init_attr->create_flags & IB_QP_CREATE_USE_GFP_NOIO ?
- GFP_NOIO : GFP_KERNEL;
-
- /* Check receive queue parameters if no SRQ is specified. */
- if (!init_attr->srq) {
- if (init_attr->cap.max_recv_sge > ib_qib_max_sges ||
- init_attr->cap.max_recv_wr > ib_qib_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_SMI:
- case IB_QPT_GSI:
- if (init_attr->port_num == 0 ||
- init_attr->port_num > ibpd->device->phys_port_cnt) {
- ret = ERR_PTR(-EINVAL);
- goto bail;
- }
- case IB_QPT_UC:
- case IB_QPT_RC:
- case IB_QPT_UD:
- sz = sizeof(struct rvt_sge) *
- init_attr->cap.max_send_sge +
- sizeof(struct rvt_swqe);
- swq = __vmalloc((init_attr->cap.max_send_wr + 1) * sz,
- gfp, PAGE_KERNEL);
- if (swq == NULL) {
- ret = ERR_PTR(-ENOMEM);
- goto bail;
- }
- sz = sizeof(*qp);
- sg_list_sz = 0;
- if (init_attr->srq) {
- struct rvt_srq *srq = ibsrq_to_rvtsrq(init_attr->srq);
-
- if (srq->rq.max_sge > 1)
- sg_list_sz = sizeof(*qp->r_sg_list) *
- (srq->rq.max_sge - 1);
- } else if (init_attr->cap.max_recv_sge > 1)
- sg_list_sz = sizeof(*qp->r_sg_list) *
- (init_attr->cap.max_recv_sge - 1);
- qp = kzalloc(sz + sg_list_sz, gfp);
- if (!qp) {
- ret = ERR_PTR(-ENOMEM);
- goto bail_swq;
- }
- RCU_INIT_POINTER(qp->next, NULL);
- priv = kzalloc(sizeof(*priv), gfp);
- if (!priv) {
- ret = ERR_PTR(-ENOMEM);
- goto bail_qp_hdr;
- }
- priv->owner = qp;
- priv->s_hdr = kzalloc(sizeof(*priv->s_hdr), gfp);
- if (!priv->s_hdr) {
- ret = ERR_PTR(-ENOMEM);
- goto bail_qp;
- }
- qp->priv = priv;
- qp->timeout_jiffies =
- usecs_to_jiffies((4096UL * (1UL << qp->timeout)) /
- 1000UL);
- if (init_attr->srq)
- sz = 0;
- else {
- qp->r_rq.size = init_attr->cap.max_recv_wr + 1;
- qp->r_rq.max_sge = init_attr->cap.max_recv_sge;
- sz = (sizeof(struct ib_sge) * qp->r_rq.max_sge) +
- sizeof(struct rvt_rwqe);
- if (gfp != GFP_NOIO)
- qp->r_rq.wq = vmalloc_user(
- sizeof(struct rvt_rwq) +
- qp->r_rq.size * sz);
- else
- qp->r_rq.wq = __vmalloc(
- sizeof(struct rvt_rwq) +
- qp->r_rq.size * sz,
- gfp, PAGE_KERNEL);
-
- if (!qp->r_rq.wq) {
- ret = ERR_PTR(-ENOMEM);
- goto bail_qp;
- }
- }
+ priv = kzalloc(sizeof(*priv), gfp);
+ if (!priv)
+ return ERR_PTR(-ENOMEM);
+ priv->owner = qp;
- /*
- * ib_create_qp() will initialize qp->ibqp
- * except for qp->ibqp.qp_num.
- */
- spin_lock_init(&qp->r_lock);
- spin_lock_init(&qp->s_lock);
- spin_lock_init(&qp->r_rq.lock);
- atomic_set(&qp->refcount, 0);
- init_waitqueue_head(&qp->wait);
- init_waitqueue_head(&priv->wait_dma);
- init_timer(&qp->s_timer);
- qp->s_timer.data = (unsigned long)qp;
- INIT_WORK(&priv->s_work, qib_do_send);
- INIT_LIST_HEAD(&priv->iowait);
- INIT_LIST_HEAD(&qp->rspwait);
- qp->state = IB_QPS_RESET;
- qp->s_wq = swq;
- qp->s_size = init_attr->cap.max_send_wr + 1;
- qp->s_max_sge = init_attr->cap.max_send_sge;
- if (init_attr->sq_sig_type == IB_SIGNAL_REQ_WR)
- qp->s_flags = RVT_S_SIGNAL_REQ_WR;
- dev = to_idev(ibpd->device);
- dd = dd_from_dev(dev);
- err = alloc_qpn(dd, &dev->rdi.qp_dev->qpn_table,
- init_attr->qp_type, init_attr->port_num, gfp);
- if (err < 0) {
- ret = ERR_PTR(err);
- vfree(qp->r_rq.wq);
- goto bail_qp;
- }
- qp->ibqp.qp_num = err;
- qp->port_num = init_attr->port_num;
- qib_reset_qp(qp, init_attr->qp_type);
- break;
-
- default:
- /* Don't support raw QPs */
- ret = ERR_PTR(-ENOSYS);
- goto bail;
- }
-
- init_attr->cap.max_inline_data = 0;
-
- /*
- * Return the address of the RWQ as the offset to mmap.
- * See qib_mmap() for details.
- */
- if (udata && udata->outlen >= sizeof(__u64)) {
- if (!qp->r_rq.wq) {
- __u64 offset = 0;
-
- err = ib_copy_to_udata(udata, &offset,
- sizeof(offset));
- if (err) {
- ret = ERR_PTR(err);
- goto bail_ip;
- }
- } else {
- u32 s = sizeof(struct rvt_rwq) + qp->r_rq.size * sz;
-
- qp->ip = rvt_create_mmap_info(&dev->rdi, s,
- ibpd->uobject->context,
- qp->r_rq.wq);
- if (!qp->ip) {
- ret = ERR_PTR(-ENOMEM);
- goto bail_ip;
- }
-
- err = ib_copy_to_udata(udata, &(qp->ip->offset),
- sizeof(qp->ip->offset));
- if (err) {
- ret = ERR_PTR(err);
- goto bail_ip;
- }
- }
+ priv->s_hdr = kzalloc(sizeof(*priv->s_hdr), gfp);
+ if (!priv->s_hdr) {
+ kfree(priv);
+ return ERR_PTR(-ENOMEM);
}
+ init_waitqueue_head(&priv->wait_dma);
+ INIT_WORK(&priv->s_work, qib_do_send);
+ INIT_LIST_HEAD(&priv->iowait);
- spin_lock(&dev->n_qps_lock);
- if (dev->n_qps_allocated == ib_qib_max_qps) {
- spin_unlock(&dev->n_qps_lock);
- ret = ERR_PTR(-ENOMEM);
- goto bail_ip;
- }
-
- dev->n_qps_allocated++;
- spin_unlock(&dev->n_qps_lock);
-
- if (qp->ip) {
- spin_lock_irq(&dev->rdi.pending_lock);
- list_add(&qp->ip->pending_mmaps, &dev->rdi.pending_mmaps);
- spin_unlock_irq(&dev->rdi.pending_lock);
- }
+ return priv;
+}
- ret = &qp->ibqp;
- goto bail;
+void qp_priv_free(struct rvt_dev_info *rdi, struct rvt_qp *qp)
+{
+ struct qib_qp_priv *priv = qp->priv;
-bail_ip:
- if (qp->ip)
- kref_put(&qp->ip->ref, rvt_release_mmap_info);
- else
- vfree(qp->r_rq.wq);
- free_qpn(&dev->rdi.qp_dev->qpn_table, qp->ibqp.qp_num);
-bail_qp:
kfree(priv->s_hdr);
kfree(priv);
-bail_qp_hdr:
- kfree(qp);
-bail_swq:
- vfree(swq);
-bail:
- return ret;
}
/**
}
/**
- * qib_init_qpn_table - initialize the QP number table for a device
- * @qpt: the QPN table
- */
-void qib_init_qpn_table(struct qib_devdata *dd, struct rvt_qpn_table *qpt)
-{
- spin_lock_init(&qpt->lock);
- qpt->last = 1; /* start with QPN 2 */
- qpt->nmaps = 1;
- qpt_mask = dd->qpn_mask;
-}
-
-/**
- * qib_free_qpn_table - free the QP number table for a device
- * @qpt: the QPN table
- */
-void qib_free_qpn_table(struct rvt_qpn_table *qpt)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(qpt->map); i++)
- if (qpt->map[i].page)
- free_page((unsigned long) qpt->map[i].page);
-}
-
-/**
* qib_get_credit - flush the send work queue of a QP
* @qp: the qp who's send work queue to flush
* @aeth: the Acknowledge Extended Transport Header
unsigned i, ctxt;
int ret;
- /* allocate parent object */
- dev->rdi.qp_dev = kzalloc(sizeof(*dev->rdi.qp_dev), GFP_KERNEL);
- if (!dev->rdi.qp_dev)
- return -ENOMEM;
- dev->rdi.qp_dev->qp_table_size = ib_qib_qp_table_size;
- dev->rdi.qp_dev->qp_table_bits = ilog2(ib_qib_qp_table_size);
get_random_bytes(&dev->qp_rnd, sizeof(dev->qp_rnd));
- dev->rdi.qp_dev->qp_table = kmalloc_array(
- dev->rdi.qp_dev->qp_table_size,
- sizeof(*dev->rdi.qp_dev->qp_table),
- GFP_KERNEL);
- if (!dev->rdi.qp_dev->qp_table) {
- ret = -ENOMEM;
- goto err_qpt;
- }
- for (i = 0; i < dev->rdi.qp_dev->qp_table_size; i++)
- RCU_INIT_POINTER(dev->rdi.qp_dev->qp_table[i], NULL);
-
for (i = 0; i < dd->num_pports; i++)
init_ibport(ppd + i);
/* Only need to initialize non-zero fields. */
- spin_lock_init(&dev->rdi.qp_dev->qpt_lock);
spin_lock_init(&dev->n_cqs_lock);
spin_lock_init(&dev->n_qps_lock);
spin_lock_init(&dev->n_srqs_lock);
dev->mem_timer.function = mem_timer;
dev->mem_timer.data = (unsigned long) dev;
- qib_init_qpn_table(dd, &dev->rdi.qp_dev->qpn_table);
+ qpt_mask = dd->qpn_mask;
INIT_LIST_HEAD(&dev->piowait);
INIT_LIST_HEAD(&dev->dmawait);
ibdev->modify_srq = qib_modify_srq;
ibdev->query_srq = qib_query_srq;
ibdev->destroy_srq = qib_destroy_srq;
- ibdev->create_qp = qib_create_qp;
+ ibdev->create_qp = NULL;
ibdev->modify_qp = qib_modify_qp;
ibdev->query_qp = qib_query_qp;
ibdev->destroy_qp = qib_destroy_qp;
dd->verbs_dev.rdi.driver_f.get_pci_dev = qib_get_pci_dev;
dd->verbs_dev.rdi.driver_f.check_ah = qib_check_ah;
dd->verbs_dev.rdi.driver_f.notify_new_ah = qib_notify_new_ah;
- dd->verbs_dev.rdi.flags = (RVT_FLAG_QP_INIT_DRIVER |
- RVT_FLAG_CQ_INIT_DRIVER);
+ dd->verbs_dev.rdi.driver_f.alloc_qpn = alloc_qpn;
+ dd->verbs_dev.rdi.driver_f.qp_priv_alloc = qp_priv_alloc;
+ dd->verbs_dev.rdi.driver_f.qp_priv_free = qp_priv_free;
+ dd->verbs_dev.rdi.driver_f.free_all_qps = qib_free_all_qps;
+ dd->verbs_dev.rdi.driver_f.notify_qp_reset = notify_qp_reset;
+
+ dd->verbs_dev.rdi.flags = RVT_FLAG_CQ_INIT_DRIVER;
+
dd->verbs_dev.rdi.dparms.lkey_table_size = qib_lkey_table_size;
+ dd->verbs_dev.rdi.dparms.qp_table_size = ib_qib_qp_table_size;
+ dd->verbs_dev.rdi.dparms.qpn_start = 1;
+ dd->verbs_dev.rdi.dparms.qpn_res_start = QIB_KD_QP;
+ dd->verbs_dev.rdi.dparms.qpn_res_end = QIB_KD_QP; /* Reserve one QP */
+ dd->verbs_dev.rdi.dparms.qpn_inc = 1;
+ dd->verbs_dev.rdi.dparms.qos_shift = 1;
dd->verbs_dev.rdi.dparms.nports = dd->num_pports;
dd->verbs_dev.rdi.dparms.npkeys = qib_get_npkeys(dd);
sizeof(struct qib_pio_header),
dev->pio_hdrs, dev->pio_hdrs_phys);
err_hdrs:
- kfree(dev->rdi.qp_dev->qp_table);
-err_qpt:
qib_dev_err(dd, "cannot register verbs: %d!\n", -ret);
bail:
return ret;
void qib_unregister_ib_device(struct qib_devdata *dd)
{
struct qib_ibdev *dev = &dd->verbs_dev;
- u32 qps_inuse;
qib_verbs_unregister_sysfs(dd);
if (!list_empty(&dev->memwait))
qib_dev_err(dd, "memwait list not empty!\n");
- qps_inuse = qib_free_all_qps(dd);
- if (qps_inuse)
- qib_dev_err(dd, "QP memory leak! %u still in use\n",
- qps_inuse);
-
del_timer_sync(&dev->mem_timer);
- qib_free_qpn_table(&dev->rdi.qp_dev->qpn_table);
while (!list_empty(&dev->txreq_free)) {
struct list_head *l = dev->txreq_free.next;
struct qib_verbs_txreq *tx;
dd->pport->sdma_descq_cnt *
sizeof(struct qib_pio_header),
dev->pio_hdrs, dev->pio_hdrs_phys);
- kfree(dev->rdi.qp_dev->qp_table);
}
/*
projects / platform / kernel / linux-starfive.git / commitdiff