Today, we are using idr mechanism for QP's only.
This patch prepares the qedr_idr stuctures and the idr routines for both
QP's and SRQ's.
Signed-off-by: Michal Kalderon <michal.kalderon@xxxxxxxxxx>
Signed-off-by: Yuval Bason <yuval.bason@xxxxxxxxxx>
---
drivers/infiniband/hw/qedr/main.c | 4 ++--
drivers/infiniband/hw/qedr/qedr.h | 8 ++++++--
drivers/infiniband/hw/qedr/qedr_iw_cm.c | 12 +++++------
drivers/infiniband/hw/qedr/verbs.c | 36 ++++++++++++++++-----------------
4 files changed, 31 insertions(+), 29 deletions(-)
diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c
index ad22b32..912a0ca 100644
--- a/drivers/infiniband/hw/qedr/main.c
+++ b/drivers/infiniband/hw/qedr/main.c
@@ -325,8 +325,8 @@ static int qedr_alloc_resources(struct qedr_dev *dev)
spin_lock_init(&dev->sgid_lock);
if (IS_IWARP(dev)) {
- spin_lock_init(&dev->idr_lock);
- idr_init(&dev->qpidr);
+ spin_lock_init(&dev->qpidr.idr_lock);
+ idr_init(&dev->qpidr.idr);
dev->iwarp_wq = create_singlethread_workqueue("qedr_iwarpq");
}
diff --git a/drivers/infiniband/hw/qedr/qedr.h b/drivers/infiniband/hw/qedr/qedr.h
index 86d4511..5d0b75e 100644
--- a/drivers/infiniband/hw/qedr/qedr.h
+++ b/drivers/infiniband/hw/qedr/qedr.h
@@ -122,6 +122,11 @@ struct qedr_device_attr {
#define QEDR_ENET_STATE_BIT (0)
+struct qedr_idr {
+ spinlock_t idr_lock; /* Protect idr data-structure */
+ struct idr idr;
+};
+
struct qedr_dev {
struct ib_device ibdev;
struct qed_dev *cdev;
@@ -165,8 +170,7 @@ struct qedr_dev {
struct qedr_cq *gsi_rqcq;
struct qedr_qp *gsi_qp;
enum qed_rdma_type rdma_type;
- spinlock_t idr_lock; /* Protect qpidr data-structure */
- struct idr qpidr;
+ struct qedr_idr qpidr;
struct workqueue_struct *iwarp_wq;
u16 iwarp_max_mtu;
diff --git a/drivers/infiniband/hw/qedr/qedr_iw_cm.c b/drivers/infiniband/hw/qedr/qedr_iw_cm.c
index 26dc374..505fa36 100644
--- a/drivers/infiniband/hw/qedr/qedr_iw_cm.c
+++ b/drivers/infiniband/hw/qedr/qedr_iw_cm.c
@@ -491,7 +491,7 @@ int qedr_iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
int rc = 0;
int i;
- qp = idr_find(&dev->qpidr, conn_param->qpn);
+ qp = idr_find(&dev->qpidr.idr, conn_param->qpn);
laddr = (struct sockaddr_in *)&cm_id->m_local_addr;
raddr = (struct sockaddr_in *)&cm_id->m_remote_addr;
@@ -679,7 +679,7 @@ int qedr_iw_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
DP_DEBUG(dev, QEDR_MSG_IWARP, "Accept on qpid=%d\n", conn_param->qpn);
- qp = idr_find(&dev->qpidr, conn_param->qpn);
+ qp = idr_find(&dev->qpidr.idr, conn_param->qpn);
if (!qp) {
DP_ERR(dev, "Invalid QP number %d\n", conn_param->qpn);
return -EINVAL;
@@ -737,9 +737,9 @@ void qedr_iw_qp_rem_ref(struct ib_qp *ibqp)
struct qedr_qp *qp = get_qedr_qp(ibqp);
if (atomic_dec_and_test(&qp->refcnt)) {
- spin_lock_irq(&qp->dev->idr_lock);
- idr_remove(&qp->dev->qpidr, qp->qp_id);
- spin_unlock_irq(&qp->dev->idr_lock);
+ spin_lock_irq(&qp->dev->qpidr.idr_lock);
+ idr_remove(&qp->dev->qpidr.idr, qp->qp_id);
+ spin_unlock_irq(&qp->dev->qpidr.idr_lock);
kfree(qp);
}
}
@@ -748,5 +748,5 @@ struct ib_qp *qedr_iw_get_qp(struct ib_device *ibdev, int qpn)
{
struct qedr_dev *dev = get_qedr_dev(ibdev);
- return idr_find(&dev->qpidr, qpn);
+ return idr_find(&dev->qpidr.idr, qpn);
}
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 0c41d54..d5c31f4 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -1311,32 +1311,27 @@ static inline void qedr_qp_user_print(struct qedr_dev *dev, struct qedr_qp *qp)
qp->usq.buf_len, qp->urq.buf_addr, qp->urq.buf_len);
}
-static int qedr_idr_add(struct qedr_dev *dev, void *ptr, u32 id)
+static int qedr_idr_add(struct qedr_dev *dev, struct qedr_idr *qidr,
+ void *ptr, u32 id)
{
int rc;
- if (!rdma_protocol_iwarp(&dev->ibdev, 1))
- return 0;
-
idr_preload(GFP_KERNEL);
- spin_lock_irq(&dev->idr_lock);
+ spin_lock_irq(&qidr->idr_lock);
- rc = idr_alloc(&dev->qpidr, ptr, id, id + 1, GFP_ATOMIC);
+ rc = idr_alloc(&qidr->idr, ptr, id, id + 1, GFP_ATOMIC);
- spin_unlock_irq(&dev->idr_lock);
+ spin_unlock_irq(&qidr->idr_lock);
idr_preload_end();
return rc < 0 ? rc : 0;
}
-static void qedr_idr_remove(struct qedr_dev *dev, u32 id)
+static void qedr_idr_remove(struct qedr_dev *dev, struct qedr_idr *qidr, u32 id)
{
- if (!rdma_protocol_iwarp(&dev->ibdev, 1))
- return;
-
- spin_lock_irq(&dev->idr_lock);
- idr_remove(&dev->qpidr, id);
- spin_unlock_irq(&dev->idr_lock);
+ spin_lock_irq(&qidr->idr_lock);
+ idr_remove(&qidr->idr, id);
+ spin_unlock_irq(&qidr->idr_lock);
}
static inline void
@@ -1708,9 +1703,11 @@ struct ib_qp *qedr_create_qp(struct ib_pd *ibpd,
qp->ibqp.qp_num = qp->qp_id;
- rc = qedr_idr_add(dev, qp, qp->qp_id);
- if (rc)
- goto err;
+ if (rdma_protocol_iwarp(&dev->ibdev, 1)) {
+ rc = qedr_idr_add(dev, &dev->qpidr, qp, qp->qp_id);
+ if (rc)
+ goto err;
+ }
return &qp->ibqp;
@@ -2279,8 +2276,9 @@ int qedr_destroy_qp(struct ib_qp *ibqp)
qedr_free_qp_resources(dev, qp);
- if (atomic_dec_and_test(&qp->refcnt)) {
- qedr_idr_remove(dev, qp->qp_id);
+ if (atomic_dec_and_test(&qp->refcnt) &&
+ rdma_protocol_iwarp(&dev->ibdev, 1)) {
+ qedr_idr_remove(dev, &dev->qpidr, qp->qp_id);
kfree(qp);
}
return rc;
--
1.8.3.1
--
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