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path: root/drivers/infiniband/hw/mthca/mthca_provider.c
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Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_provider.c')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_provider.c170
1 files changed, 163 insertions, 7 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index e88e39aef85a..2c250bc11c33 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1,7 +1,7 @@
/*
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
- * Copyright (c) 2005 Cisco Systems. All rights reserved.
+ * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
* Copyright (c) 2004 Voltaire, Inc. All rights reserved.
*
@@ -108,12 +108,12 @@ static int mthca_query_device(struct ib_device *ibdev,
props->max_srq_wr = mdev->limits.max_srq_wqes;
props->max_srq_sge = mdev->limits.max_sg;
props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay;
- props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ?
+ props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ?
IB_ATOMIC_HCA : IB_ATOMIC_NONE;
props->max_pkeys = mdev->limits.pkey_table_len;
props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms;
props->max_mcast_qp_attach = MTHCA_QP_PER_MGM;
- props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
+ props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
props->max_mcast_grp;
err = 0;
@@ -176,6 +176,23 @@ static int mthca_query_port(struct ib_device *ibdev,
return err;
}
+static int mthca_modify_device(struct ib_device *ibdev,
+ int mask,
+ struct ib_device_modify *props)
+{
+ if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
+ return -EOPNOTSUPP;
+
+ if (mask & IB_DEVICE_MODIFY_NODE_DESC) {
+ if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
+ return -ERESTARTSYS;
+ memcpy(ibdev->node_desc, props->node_desc, 64);
+ mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
+ }
+
+ return 0;
+}
+
static int mthca_modify_port(struct ib_device *ibdev,
u8 port, int port_modify_mask,
struct ib_port_modify *props)
@@ -669,9 +686,9 @@ static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries,
}
if (context) {
- cq->mr.ibmr.lkey = ucmd.lkey;
- cq->set_ci_db_index = ucmd.set_db_index;
- cq->arm_db_index = ucmd.arm_db_index;
+ cq->buf.mr.ibmr.lkey = ucmd.lkey;
+ cq->set_ci_db_index = ucmd.set_db_index;
+ cq->arm_db_index = ucmd.arm_db_index;
}
for (nent = 1; nent <= entries; nent <<= 1)
@@ -689,6 +706,8 @@ static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries,
goto err_free;
}
+ cq->resize_buf = NULL;
+
return &cq->ibcq;
err_free:
@@ -707,6 +726,121 @@ err_unmap_set:
return ERR_PTR(err);
}
+static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq,
+ int entries)
+{
+ int ret;
+
+ spin_lock_irq(&cq->lock);
+ if (cq->resize_buf) {
+ ret = -EBUSY;
+ goto unlock;
+ }
+
+ cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC);
+ if (!cq->resize_buf) {
+ ret = -ENOMEM;
+ goto unlock;
+ }
+
+ cq->resize_buf->state = CQ_RESIZE_ALLOC;
+
+ ret = 0;
+
+unlock:
+ spin_unlock_irq(&cq->lock);
+
+ if (ret)
+ return ret;
+
+ ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries);
+ if (ret) {
+ spin_lock_irq(&cq->lock);
+ kfree(cq->resize_buf);
+ cq->resize_buf = NULL;
+ spin_unlock_irq(&cq->lock);
+ return ret;
+ }
+
+ cq->resize_buf->cqe = entries - 1;
+
+ spin_lock_irq(&cq->lock);
+ cq->resize_buf->state = CQ_RESIZE_READY;
+ spin_unlock_irq(&cq->lock);
+
+ return 0;
+}
+
+static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
+{
+ struct mthca_dev *dev = to_mdev(ibcq->device);
+ struct mthca_cq *cq = to_mcq(ibcq);
+ struct mthca_resize_cq ucmd;
+ u32 lkey;
+ u8 status;
+ int ret;
+
+ if (entries < 1 || entries > dev->limits.max_cqes)
+ return -EINVAL;
+
+ entries = roundup_pow_of_two(entries + 1);
+ if (entries == ibcq->cqe + 1)
+ return 0;
+
+ if (cq->is_kernel) {
+ ret = mthca_alloc_resize_buf(dev, cq, entries);
+ if (ret)
+ return ret;
+ lkey = cq->resize_buf->buf.mr.ibmr.lkey;
+ } else {
+ if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
+ return -EFAULT;
+ lkey = ucmd.lkey;
+ }
+
+ ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, long_log2(entries), &status);
+ if (status)
+ ret = -EINVAL;
+
+ if (ret) {
+ if (cq->resize_buf) {
+ mthca_free_cq_buf(dev, &cq->resize_buf->buf,
+ cq->resize_buf->cqe);
+ kfree(cq->resize_buf);
+ spin_lock_irq(&cq->lock);
+ cq->resize_buf = NULL;
+ spin_unlock_irq(&cq->lock);
+ }
+ return ret;
+ }
+
+ if (cq->is_kernel) {
+ struct mthca_cq_buf tbuf;
+ int tcqe;
+
+ spin_lock_irq(&cq->lock);
+ if (cq->resize_buf->state == CQ_RESIZE_READY) {
+ mthca_cq_resize_copy_cqes(cq);
+ tbuf = cq->buf;
+ tcqe = cq->ibcq.cqe;
+ cq->buf = cq->resize_buf->buf;
+ cq->ibcq.cqe = cq->resize_buf->cqe;
+ } else {
+ tbuf = cq->resize_buf->buf;
+ tcqe = cq->resize_buf->cqe;
+ }
+
+ kfree(cq->resize_buf);
+ cq->resize_buf = NULL;
+ spin_unlock_irq(&cq->lock);
+
+ mthca_free_cq_buf(dev, &tbuf, tcqe);
+ } else
+ ibcq->cqe = entries - 1;
+
+ return 0;
+}
+
static int mthca_destroy_cq(struct ib_cq *cq)
{
if (cq->uobject) {
@@ -1070,6 +1204,20 @@ static int mthca_init_node_data(struct mthca_dev *dev)
goto out;
init_query_mad(in_mad);
+ in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
+
+ err = mthca_MAD_IFC(dev, 1, 1,
+ 1, NULL, NULL, in_mad, out_mad,
+ &status);
+ if (err)
+ goto out;
+ if (status) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
+
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
err = mthca_MAD_IFC(dev, 1, 1,
@@ -1113,14 +1261,17 @@ int mthca_register_device(struct mthca_dev *dev)
(1ull << IB_USER_VERBS_CMD_DEREG_MR) |
(1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
(1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
+ (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
(1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
(1ull << IB_USER_VERBS_CMD_CREATE_QP) |
+ (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
(1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
(1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
(1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
(1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
(1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
(1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
+ (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
(1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
dev->ib_dev.node_type = IB_NODE_CA;
dev->ib_dev.phys_port_cnt = dev->limits.num_ports;
@@ -1128,6 +1279,7 @@ int mthca_register_device(struct mthca_dev *dev)
dev->ib_dev.class_dev.dev = &dev->pdev->dev;
dev->ib_dev.query_device = mthca_query_device;
dev->ib_dev.query_port = mthca_query_port;
+ dev->ib_dev.modify_device = mthca_modify_device;
dev->ib_dev.modify_port = mthca_modify_port;
dev->ib_dev.query_pkey = mthca_query_pkey;
dev->ib_dev.query_gid = mthca_query_gid;
@@ -1137,11 +1289,13 @@ int mthca_register_device(struct mthca_dev *dev)
dev->ib_dev.alloc_pd = mthca_alloc_pd;
dev->ib_dev.dealloc_pd = mthca_dealloc_pd;
dev->ib_dev.create_ah = mthca_ah_create;
+ dev->ib_dev.query_ah = mthca_ah_query;
dev->ib_dev.destroy_ah = mthca_ah_destroy;
if (dev->mthca_flags & MTHCA_FLAG_SRQ) {
dev->ib_dev.create_srq = mthca_create_srq;
- dev->ib_dev.modify_srq = mthca_modify_srq;
+ dev->ib_dev.modify_srq = mthca_modify_srq;
+ dev->ib_dev.query_srq = mthca_query_srq;
dev->ib_dev.destroy_srq = mthca_destroy_srq;
if (mthca_is_memfree(dev))
@@ -1152,8 +1306,10 @@ int mthca_register_device(struct mthca_dev *dev)
dev->ib_dev.create_qp = mthca_create_qp;
dev->ib_dev.modify_qp = mthca_modify_qp;
+ dev->ib_dev.query_qp = mthca_query_qp;
dev->ib_dev.destroy_qp = mthca_destroy_qp;
dev->ib_dev.create_cq = mthca_create_cq;
+ dev->ib_dev.resize_cq = mthca_resize_cq;
dev->ib_dev.destroy_cq = mthca_destroy_cq;
dev->ib_dev.poll_cq = mthca_poll_cq;
dev->ib_dev.get_dma_mr = mthca_get_dma_mr;
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