Signed-off-by: Bryan O'Sullivan <[email protected]>
diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c
--- a/drivers/infiniband/hw/ipath/ipath_qp.c Fri Aug 25 11:19:45 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_qp.c Fri Aug 25 11:19:45 2006 -0700
@@ -833,9 +833,21 @@ struct ib_qp *ipath_create_qp(struct ib_
}
}
+ spin_lock(&dev->n_qps_lock);
+ if (dev->n_qps_allocated == ib_ipath_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);
+
ret = &qp->ibqp;
goto bail;
+bail_ip:
+ kfree(qp->ip);
bail_rwq:
vfree(qp->r_rq.wq);
bail_qp:
@@ -864,6 +876,9 @@ int ipath_destroy_qp(struct ib_qp *ibqp)
spin_lock_irqsave(&qp->s_lock, flags);
qp->state = IB_QPS_ERR;
spin_unlock_irqrestore(&qp->s_lock, flags);
+ spin_lock(&dev->n_qps_lock);
+ dev->n_qps_allocated--;
+ spin_unlock(&dev->n_qps_lock);
/* Stop the sending tasklet. */
tasklet_kill(&qp->s_task);
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c Fri Aug 25 11:19:45 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c Fri Aug 25 11:19:45 2006 -0700
@@ -72,6 +72,10 @@ module_param_named(max_qp_wrs, ib_ipath_
module_param_named(max_qp_wrs, ib_ipath_max_qp_wrs, uint,
S_IWUSR | S_IRUGO);
MODULE_PARM_DESC(max_qp_wrs, "Maximum number of QP WRs to support");
+
+unsigned int ib_ipath_max_qps = 16384;
+module_param_named(max_qps, ib_ipath_max_qps, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_qps, "Maximum number of QPs to support");
unsigned int ib_ipath_max_sges = 0x60;
module_param_named(max_sges, ib_ipath_max_sges, uint, S_IWUSR | S_IRUGO);
@@ -958,7 +962,7 @@ static int ipath_query_device(struct ib_
props->sys_image_guid = dev->sys_image_guid;
props->max_mr_size = ~0ull;
- props->max_qp = dev->qp_table.max;
+ props->max_qp = ib_ipath_max_qps;
props->max_qp_wr = ib_ipath_max_qp_wrs;
props->max_sge = ib_ipath_max_sges;
props->max_cq = ib_ipath_max_cqs;
@@ -1420,6 +1424,7 @@ int ipath_register_ib_device(struct ipat
spin_lock_init(&idev->n_pds_lock);
spin_lock_init(&idev->n_ahs_lock);
spin_lock_init(&idev->n_cqs_lock);
+ spin_lock_init(&idev->n_qps_lock);
spin_lock_init(&idev->n_srqs_lock);
spin_lock_init(&idev->n_mcast_grps_lock);
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h
--- a/drivers/infiniband/hw/ipath/ipath_verbs.h Fri Aug 25 11:19:45 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.h Fri Aug 25 11:19:45 2006 -0700
@@ -482,6 +482,8 @@ struct ipath_ibdev {
spinlock_t n_ahs_lock;
u32 n_cqs_allocated; /* number of CQs allocated for device */
spinlock_t n_cqs_lock;
+ u32 n_qps_allocated; /* number of QPs allocated for device */
+ spinlock_t n_qps_lock;
u32 n_srqs_allocated; /* number of SRQs allocated for device */
spinlock_t n_srqs_lock;
u32 n_mcast_grps_allocated; /* number of mcast groups allocated */
@@ -792,6 +794,8 @@ extern unsigned int ib_ipath_max_cqs;
extern unsigned int ib_ipath_max_qp_wrs;
+extern unsigned int ib_ipath_max_qps;
+
extern unsigned int ib_ipath_max_sges;
extern unsigned int ib_ipath_max_mcast_grps;
-
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