---

yaml
---
r: 31550
b: refs/heads/master
c: fe62546
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e8a88f09f21c55a7e7f570290ecde570e2c37771
+refs/heads/master: fe62546a6afa141c4ab9aef65f5978a1b36cb523

trunk/drivers/infiniband/hw/ipath/ipath_cq.c

@@ -158,10 +158,21 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
 			      struct ib_ucontext *context,
 			      struct ib_udata *udata)
 {
+	struct ipath_ibdev *dev = to_idev(ibdev);
 	struct ipath_cq *cq;
 	struct ib_wc *wc;
 	struct ib_cq *ret;
 
+	if (entries > ib_ipath_max_cqes) {
+		ret = ERR_PTR(-EINVAL);
+		goto bail;
+	}
+
+	if (dev->n_cqs_allocated == ib_ipath_max_cqs) {
+		ret = ERR_PTR(-ENOMEM);
+		goto bail;
+	}
+
 	/*
 	 * Need to use vmalloc() if we want to support large #s of
 	 * entries.
@@ -197,6 +208,8 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
 
 	ret = &cq->ibcq;
 
+	dev->n_cqs_allocated++;
+
 bail:
 	return ret;
 }
@@ -211,9 +224,11 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
  */
 int ipath_destroy_cq(struct ib_cq *ibcq)
 {
+	struct ipath_ibdev *dev = to_idev(ibcq->device);
 	struct ipath_cq *cq = to_icq(ibcq);
 
 	tasklet_kill(&cq->comptask);
+	dev->n_cqs_allocated--;
 	vfree(cq->queue);
 	kfree(cq);
 

trunk/drivers/infiniband/hw/ipath/ipath_qp.c

@@ -661,8 +661,10 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd,
 	size_t sz;
 	struct ib_qp *ret;
 
-	if (init_attr->cap.max_send_sge > 255 ||
-	    init_attr->cap.max_recv_sge > 255) {
+	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);
 		goto bail;
 	}

trunk/drivers/infiniband/hw/ipath/ipath_srq.c

@@ -126,11 +126,23 @@ struct ib_srq *ipath_create_srq(struct ib_pd *ibpd,
 				struct ib_srq_init_attr *srq_init_attr,
 				struct ib_udata *udata)
 {
+	struct ipath_ibdev *dev = to_idev(ibpd->device);
 	struct ipath_srq *srq;
 	u32 sz;
 	struct ib_srq *ret;
 
-	if (srq_init_attr->attr.max_sge < 1) {
+	if (dev->n_srqs_allocated == ib_ipath_max_srqs) {
+		ret = ERR_PTR(-ENOMEM);
+		goto bail;
+	}
+
+	if (srq_init_attr->attr.max_wr == 0) {
+		ret = ERR_PTR(-EINVAL);
+		goto bail;
+	}
+
+	if ((srq_init_attr->attr.max_sge > ib_ipath_max_srq_sges) ||
+	    (srq_init_attr->attr.max_wr > ib_ipath_max_srq_wrs)) {
 		ret = ERR_PTR(-EINVAL);
 		goto bail;
 	}
@@ -165,6 +177,8 @@ struct ib_srq *ipath_create_srq(struct ib_pd *ibpd,
 
 	ret = &srq->ibsrq;
 
+	dev->n_srqs_allocated++;
+
 bail:
 	return ret;
 }
@@ -182,24 +196,26 @@ int ipath_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 	unsigned long flags;
 	int ret;
 
-	if (attr_mask & IB_SRQ_LIMIT) {
-		spin_lock_irqsave(&srq->rq.lock, flags);
-		srq->limit = attr->srq_limit;
-		spin_unlock_irqrestore(&srq->rq.lock, flags);
-	}
-	if (attr_mask & IB_SRQ_MAX_WR) {
-		u32 size = attr->max_wr + 1;
-		struct ipath_rwqe *wq, *p;
-		u32 n;
-		u32 sz;
+	if (attr_mask & IB_SRQ_MAX_WR)
+		if ((attr->max_wr > ib_ipath_max_srq_wrs) ||
+		    (attr->max_sge > srq->rq.max_sge)) {
+			ret = -EINVAL;
+			goto bail;
+		}
 
-		if (attr->max_sge < srq->rq.max_sge) {
+	if (attr_mask & IB_SRQ_LIMIT)
+		if (attr->srq_limit >= srq->rq.size) {
 			ret = -EINVAL;
 			goto bail;
 		}
 
+	if (attr_mask & IB_SRQ_MAX_WR) {
+		struct ipath_rwqe *wq, *p;
+		u32 sz, size, n;
+
 		sz = sizeof(struct ipath_rwqe) +
 			attr->max_sge * sizeof(struct ipath_sge);
+		size = attr->max_wr + 1;
 		wq = vmalloc(size * sz);
 		if (!wq) {
 			ret = -ENOMEM;
@@ -243,6 +259,11 @@ int ipath_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 		spin_unlock_irqrestore(&srq->rq.lock, flags);
 	}
 
+	if (attr_mask & IB_SRQ_LIMIT) {
+		spin_lock_irqsave(&srq->rq.lock, flags);
+		srq->limit = attr->srq_limit;
+		spin_unlock_irqrestore(&srq->rq.lock, flags);
+	}
 	ret = 0;
 
 bail:
@@ -266,7 +287,9 @@ int ipath_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr)
 int ipath_destroy_srq(struct ib_srq *ibsrq)
 {
 	struct ipath_srq *srq = to_isrq(ibsrq);
+	struct ipath_ibdev *dev = to_idev(ibsrq->device);
 
+	dev->n_srqs_allocated--;
 	vfree(srq->rq.wq);
 	kfree(srq);
 

trunk/drivers/infiniband/hw/ipath/ipath_verbs.c

@@ -56,6 +56,59 @@ unsigned int ib_ipath_debug;	/* debug mask */
 module_param_named(debug, ib_ipath_debug, uint, S_IWUSR | S_IRUGO);
 MODULE_PARM_DESC(debug, "Verbs debug mask");
 
+static unsigned int ib_ipath_max_pds = 0xFFFF;
+module_param_named(max_pds, ib_ipath_max_pds, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_pds,
+		 "Maximum number of protection domains to support");
+
+static unsigned int ib_ipath_max_ahs = 0xFFFF;
+module_param_named(max_ahs, ib_ipath_max_ahs, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_ahs, "Maximum number of address handles to support");
+
+unsigned int ib_ipath_max_cqes = 0x2FFFF;
+module_param_named(max_cqes, ib_ipath_max_cqes, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_cqes,
+		 "Maximum number of completion queue entries to support");
+
+unsigned int ib_ipath_max_cqs = 0x1FFFF;
+module_param_named(max_cqs, ib_ipath_max_cqs, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_cqs, "Maximum number of completion queues to support");
+
+unsigned int ib_ipath_max_qp_wrs = 0x3FFF;
+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_sges = 0x60;
+module_param_named(max_sges, ib_ipath_max_sges, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_sges, "Maximum number of SGEs to support");
+
+unsigned int ib_ipath_max_mcast_grps = 16384;
+module_param_named(max_mcast_grps, ib_ipath_max_mcast_grps, uint,
+		   S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_mcast_grps,
+		 "Maximum number of multicast groups to support");
+
+unsigned int ib_ipath_max_mcast_qp_attached = 16;
+module_param_named(max_mcast_qp_attached, ib_ipath_max_mcast_qp_attached,
+		   uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_mcast_qp_attached,
+		 "Maximum number of attached QPs to support");
+
+unsigned int ib_ipath_max_srqs = 1024;
+module_param_named(max_srqs, ib_ipath_max_srqs, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_srqs, "Maximum number of SRQs to support");
+
+unsigned int ib_ipath_max_srq_sges = 128;
+module_param_named(max_srq_sges, ib_ipath_max_srq_sges,
+		   uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_srq_sges, "Maximum number of SRQ SGEs to support");
+
+unsigned int ib_ipath_max_srq_wrs = 0x1FFFF;
+module_param_named(max_srq_wrs, ib_ipath_max_srq_wrs,
+		   uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(max_srq_wrs, "Maximum number of SRQ WRs support");
+
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("QLogic <support@pathscale.com>");
 MODULE_DESCRIPTION("QLogic InfiniPath driver");
@@ -581,24 +634,25 @@ static int ipath_query_device(struct ib_device *ibdev,
 	props->sys_image_guid = dev->sys_image_guid;
 
 	props->max_mr_size = ~0ull;
-	props->max_qp = 0xffff;
-	props->max_qp_wr = 0xffff;
-	props->max_sge = 255;
-	props->max_cq = 0xffff;
-	props->max_cqe = 0xffff;
-	props->max_mr = 0xffff;
-	props->max_pd = 0xffff;
+	props->max_qp = dev->qp_table.max;
+	props->max_qp_wr = ib_ipath_max_qp_wrs;
+	props->max_sge = ib_ipath_max_sges;
+	props->max_cq = ib_ipath_max_cqs;
+	props->max_ah = ib_ipath_max_ahs;
+	props->max_cqe = ib_ipath_max_cqes;
+	props->max_mr = dev->lk_table.max;
+	props->max_pd = ib_ipath_max_pds;
 	props->max_qp_rd_atom = 1;
 	props->max_qp_init_rd_atom = 1;
 	/* props->max_res_rd_atom */
-	props->max_srq = 0xffff;
-	props->max_srq_wr = 0xffff;
-	props->max_srq_sge = 255;
+	props->max_srq = ib_ipath_max_srqs;
+	props->max_srq_wr = ib_ipath_max_srq_wrs;
+	props->max_srq_sge = ib_ipath_max_srq_sges;
 	/* props->local_ca_ack_delay */
 	props->atomic_cap = IB_ATOMIC_HCA;
 	props->max_pkeys = ipath_layer_get_npkeys(dev->dd);
-	props->max_mcast_grp = 0xffff;
-	props->max_mcast_qp_attach = 0xffff;
+	props->max_mcast_grp = ib_ipath_max_mcast_grps;
+	props->max_mcast_qp_attach = ib_ipath_max_mcast_qp_attached;
 	props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
 		props->max_mcast_grp;
 
@@ -741,15 +795,30 @@ static struct ib_pd *ipath_alloc_pd(struct ib_device *ibdev,
 				    struct ib_ucontext *context,
 				    struct ib_udata *udata)
 {
+	struct ipath_ibdev *dev = to_idev(ibdev);
 	struct ipath_pd *pd;
 	struct ib_pd *ret;
 
+	/*
+	 * This is actually totally arbitrary.	Some correctness tests
+	 * assume there's a maximum number of PDs that can be allocated.
+	 * We don't actually have this limit, but we fail the test if
+	 * we allow allocations of more than we report for this value.
+	 */
+
+	if (dev->n_pds_allocated == ib_ipath_max_pds) {
+		ret = ERR_PTR(-ENOMEM);
+		goto bail;
+	}
+
 	pd = kmalloc(sizeof *pd, GFP_KERNEL);
 	if (!pd) {
 		ret = ERR_PTR(-ENOMEM);
 		goto bail;
 	}
 
+	dev->n_pds_allocated++;
+
 	/* ib_alloc_pd() will initialize pd->ibpd. */
 	pd->user = udata != NULL;
 
@@ -762,6 +831,9 @@ static struct ib_pd *ipath_alloc_pd(struct ib_device *ibdev,
 static int ipath_dealloc_pd(struct ib_pd *ibpd)
 {
 	struct ipath_pd *pd = to_ipd(ibpd);
+	struct ipath_ibdev *dev = to_idev(ibpd->device);
+
+	dev->n_pds_allocated--;
 
 	kfree(pd);
 
@@ -780,6 +852,12 @@ static struct ib_ah *ipath_create_ah(struct ib_pd *pd,
 {
 	struct ipath_ah *ah;
 	struct ib_ah *ret;
+	struct ipath_ibdev *dev = to_idev(pd->device);
+
+	if (dev->n_ahs_allocated == ib_ipath_max_ahs) {
+		ret = ERR_PTR(-ENOMEM);
+		goto bail;
+	}
 
 	/* A multicast address requires a GRH (see ch. 8.4.1). */
 	if (ah_attr->dlid >= IPS_MULTICAST_LID_BASE &&
@@ -794,7 +872,7 @@ static struct ib_ah *ipath_create_ah(struct ib_pd *pd,
 		goto bail;
 	}
 
-	if (ah_attr->port_num != 1 ||
+	if (ah_attr->port_num < 1 ||
 	    ah_attr->port_num > pd->device->phys_port_cnt) {
 		ret = ERR_PTR(-EINVAL);
 		goto bail;
@@ -806,6 +884,8 @@ static struct ib_ah *ipath_create_ah(struct ib_pd *pd,
 		goto bail;
 	}
 
+	dev->n_ahs_allocated++;
+
 	/* ib_create_ah() will initialize ah->ibah. */
 	ah->attr = *ah_attr;
 
@@ -823,8 +903,11 @@ static struct ib_ah *ipath_create_ah(struct ib_pd *pd,
  */
 static int ipath_destroy_ah(struct ib_ah *ibah)
 {
+	struct ipath_ibdev *dev = to_idev(ibah->device);
 	struct ipath_ah *ah = to_iah(ibah);
 
+	dev->n_ahs_allocated--;
+
 	kfree(ah);
 
 	return 0;

trunk/drivers/infiniband/hw/ipath/ipath_verbs.h

@@ -149,6 +149,7 @@ struct ipath_mcast {
 	struct list_head qp_list;
 	wait_queue_head_t wait;
 	atomic_t refcount;
+	int n_attached;
 };
 
 /* Memory region */
@@ -432,6 +433,11 @@ struct ipath_ibdev {
 	__be64 sys_image_guid;	/* in network order */
 	__be64 gid_prefix;	/* in network order */
 	__be64 mkey;
+	u32 n_pds_allocated;	/* number of PDs allocated for device */
+	u32 n_ahs_allocated;	/* number of AHs allocated for device */
+	u32 n_cqs_allocated;	/* number of CQs allocated for device */
+	u32 n_srqs_allocated;	/* number of SRQs allocated for device */
+	u32 n_mcast_grps_allocated; /* number of mcast groups allocated */
 	u64 ipath_sword;	/* total dwords sent (sample result) */
 	u64 ipath_rword;	/* total dwords received (sample result) */
 	u64 ipath_spkts;	/* total packets sent (sample result) */
@@ -697,6 +703,24 @@ extern const int ib_ipath_state_ops[];
 
 extern unsigned int ib_ipath_lkey_table_size;
 
+extern unsigned int ib_ipath_max_cqes;
+
+extern unsigned int ib_ipath_max_cqs;
+
+extern unsigned int ib_ipath_max_qp_wrs;
+
+extern unsigned int ib_ipath_max_sges;
+
+extern unsigned int ib_ipath_max_mcast_grps;
+
+extern unsigned int ib_ipath_max_mcast_qp_attached;
+
+extern unsigned int ib_ipath_max_srqs;
+
+extern unsigned int ib_ipath_max_srq_sges;
+
+extern unsigned int ib_ipath_max_srq_wrs;
+
 extern const u32 ib_ipath_rnr_table[];
 
 #endif				/* IPATH_VERBS_H */