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path: root/drivers/infiniband/hw
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-rw-r--r--drivers/infiniband/hw/ehca/ehca_mrmw.c7
-rw-r--r--drivers/infiniband/hw/ipath/ipath_verbs_mcast.c16
-rw-r--r--drivers/infiniband/hw/mlx4/qp.c181
-rw-r--r--drivers/infiniband/hw/mlx4/srq.c6
-rw-r--r--drivers/infiniband/hw/mlx4/user.h5
-rw-r--r--drivers/infiniband/hw/mthca/mthca_av.c1
-rw-r--r--drivers/infiniband/hw/mthca/mthca_main.c4
-rw-r--r--drivers/infiniband/hw/mthca/mthca_qp.c158
8 files changed, 250 insertions, 128 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/infiniband/hw/ehca/ehca_mrmw.c
index 84c5bb49856..add79bd44e3 100644
--- a/drivers/infiniband/hw/ehca/ehca_mrmw.c
+++ b/drivers/infiniband/hw/ehca/ehca_mrmw.c
@@ -2050,13 +2050,10 @@ int ehca_mrmw_map_hrc_alloc(const u64 hipz_rc)
switch (hipz_rc) {
case H_SUCCESS: /* successful completion */
return 0;
- case H_ADAPTER_PARM: /* invalid adapter handle */
- case H_RT_PARM: /* invalid resource type */
case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */
- case H_MLENGTH_PARM: /* invalid memory length */
- case H_MEM_ACCESS_PARM: /* invalid access controls */
case H_CONSTRAINED: /* resource constraint */
- return -EINVAL;
+ case H_NO_MEM:
+ return -ENOMEM;
case H_BUSY: /* long busy */
return -EBUSY;
default:
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c
index 085e28b939e..dd691cfa507 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c
@@ -165,10 +165,9 @@ static int ipath_mcast_add(struct ipath_ibdev *dev,
{
struct rb_node **n = &mcast_tree.rb_node;
struct rb_node *pn = NULL;
- unsigned long flags;
int ret;
- spin_lock_irqsave(&mcast_lock, flags);
+ spin_lock_irq(&mcast_lock);
while (*n) {
struct ipath_mcast *tmcast;
@@ -228,7 +227,7 @@ static int ipath_mcast_add(struct ipath_ibdev *dev,
ret = 0;
bail:
- spin_unlock_irqrestore(&mcast_lock, flags);
+ spin_unlock_irq(&mcast_lock);
return ret;
}
@@ -289,17 +288,16 @@ int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
struct ipath_mcast *mcast = NULL;
struct ipath_mcast_qp *p, *tmp;
struct rb_node *n;
- unsigned long flags;
int last = 0;
int ret;
- spin_lock_irqsave(&mcast_lock, flags);
+ spin_lock_irq(&mcast_lock);
/* Find the GID in the mcast table. */
n = mcast_tree.rb_node;
while (1) {
if (n == NULL) {
- spin_unlock_irqrestore(&mcast_lock, flags);
+ spin_unlock_irq(&mcast_lock);
ret = -EINVAL;
goto bail;
}
@@ -334,7 +332,7 @@ int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
break;
}
- spin_unlock_irqrestore(&mcast_lock, flags);
+ spin_unlock_irq(&mcast_lock);
if (p) {
/*
@@ -348,9 +346,9 @@ int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
atomic_dec(&mcast->refcount);
wait_event(mcast->wait, !atomic_read(&mcast->refcount));
ipath_mcast_free(mcast);
- spin_lock(&dev->n_mcast_grps_lock);
+ spin_lock_irq(&dev->n_mcast_grps_lock);
dev->n_mcast_grps_allocated--;
- spin_unlock(&dev->n_mcast_grps_lock);
+ spin_unlock_irq(&dev->n_mcast_grps_lock);
}
ret = 0;
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 5cd70690845..a824bc5f79f 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -188,14 +188,32 @@ static int send_wqe_overhead(enum ib_qp_type type)
}
}
-static int set_qp_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
- enum ib_qp_type type, struct mlx4_ib_qp *qp)
+static int set_rq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
+ struct mlx4_ib_qp *qp)
{
- /* Sanity check QP size before proceeding */
+ /* Sanity check RQ size before proceeding */
+ if (cap->max_recv_wr > dev->dev->caps.max_wqes ||
+ cap->max_recv_sge > dev->dev->caps.max_rq_sg)
+ return -EINVAL;
+
+ qp->rq.max = cap->max_recv_wr ? roundup_pow_of_two(cap->max_recv_wr) : 0;
+
+ qp->rq.wqe_shift = ilog2(roundup_pow_of_two(cap->max_recv_sge *
+ sizeof (struct mlx4_wqe_data_seg)));
+ qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof (struct mlx4_wqe_data_seg);
+
+ cap->max_recv_wr = qp->rq.max;
+ cap->max_recv_sge = qp->rq.max_gs;
+
+ return 0;
+}
+
+static int set_kernel_sq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
+ enum ib_qp_type type, struct mlx4_ib_qp *qp)
+{
+ /* Sanity check SQ size before proceeding */
if (cap->max_send_wr > dev->dev->caps.max_wqes ||
- cap->max_recv_wr > dev->dev->caps.max_wqes ||
cap->max_send_sge > dev->dev->caps.max_sq_sg ||
- cap->max_recv_sge > dev->dev->caps.max_rq_sg ||
cap->max_inline_data + send_wqe_overhead(type) +
sizeof (struct mlx4_wqe_inline_seg) > dev->dev->caps.max_sq_desc_sz)
return -EINVAL;
@@ -208,12 +226,7 @@ static int set_qp_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
cap->max_send_sge + 2 > dev->dev->caps.max_sq_sg)
return -EINVAL;
- qp->rq.max = cap->max_recv_wr ? roundup_pow_of_two(cap->max_recv_wr) : 0;
- qp->sq.max = cap->max_send_wr ? roundup_pow_of_two(cap->max_send_wr) : 0;
-
- qp->rq.wqe_shift = ilog2(roundup_pow_of_two(cap->max_recv_sge *
- sizeof (struct mlx4_wqe_data_seg)));
- qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof (struct mlx4_wqe_data_seg);
+ qp->sq.max = cap->max_send_wr ? roundup_pow_of_two(cap->max_send_wr) : 1;
qp->sq.wqe_shift = ilog2(roundup_pow_of_two(max(cap->max_send_sge *
sizeof (struct mlx4_wqe_data_seg),
@@ -233,16 +246,26 @@ static int set_qp_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
qp->sq.offset = 0;
}
- cap->max_send_wr = qp->sq.max;
- cap->max_recv_wr = qp->rq.max;
- cap->max_send_sge = qp->sq.max_gs;
- cap->max_recv_sge = qp->rq.max_gs;
+ cap->max_send_wr = qp->sq.max;
+ cap->max_send_sge = qp->sq.max_gs;
cap->max_inline_data = (1 << qp->sq.wqe_shift) - send_wqe_overhead(type) -
sizeof (struct mlx4_wqe_inline_seg);
return 0;
}
+static int set_user_sq_size(struct mlx4_ib_qp *qp,
+ struct mlx4_ib_create_qp *ucmd)
+{
+ qp->sq.max = 1 << ucmd->log_sq_bb_count;
+ qp->sq.wqe_shift = ucmd->log_sq_stride;
+
+ qp->buf_size = (qp->rq.max << qp->rq.wqe_shift) +
+ (qp->sq.max << qp->sq.wqe_shift);
+
+ return 0;
+}
+
static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
struct ib_qp_init_attr *init_attr,
struct ib_udata *udata, int sqpn, struct mlx4_ib_qp *qp)
@@ -264,7 +287,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
qp->sq.head = 0;
qp->sq.tail = 0;
- err = set_qp_size(dev, &init_attr->cap, init_attr->qp_type, qp);
+ err = set_rq_size(dev, &init_attr->cap, qp);
if (err)
goto err;
@@ -276,6 +299,10 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
goto err;
}
+ err = set_user_sq_size(qp, &ucmd);
+ if (err)
+ goto err;
+
qp->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr,
qp->buf_size, 0);
if (IS_ERR(qp->umem)) {
@@ -297,6 +324,10 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
if (err)
goto err_mtt;
} else {
+ err = set_kernel_sq_size(dev, &init_attr->cap, init_attr->qp_type, qp);
+ if (err)
+ goto err;
+
err = mlx4_ib_db_alloc(dev, &qp->db, 0);
if (err)
goto err;
@@ -573,7 +604,7 @@ static int to_mlx4_st(enum ib_qp_type type)
}
}
-static __be32 to_mlx4_access_flags(struct mlx4_ib_qp *qp, struct ib_qp_attr *attr,
+static __be32 to_mlx4_access_flags(struct mlx4_ib_qp *qp, const struct ib_qp_attr *attr,
int attr_mask)
{
u8 dest_rd_atomic;
@@ -603,7 +634,7 @@ static __be32 to_mlx4_access_flags(struct mlx4_ib_qp *qp, struct ib_qp_attr *att
return cpu_to_be32(hw_access_flags);
}
-static void store_sqp_attrs(struct mlx4_ib_sqp *sqp, struct ib_qp_attr *attr,
+static void store_sqp_attrs(struct mlx4_ib_sqp *sqp, const struct ib_qp_attr *attr,
int attr_mask)
{
if (attr_mask & IB_QP_PKEY_INDEX)
@@ -619,7 +650,7 @@ static void mlx4_set_sched(struct mlx4_qp_path *path, u8 port)
path->sched_queue = (path->sched_queue & 0xbf) | ((port - 1) << 6);
}
-static int mlx4_set_path(struct mlx4_ib_dev *dev, struct ib_ah_attr *ah,
+static int mlx4_set_path(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah,
struct mlx4_qp_path *path, u8 port)
{
path->grh_mylmc = ah->src_path_bits & 0x7f;
@@ -655,14 +686,14 @@ static int mlx4_set_path(struct mlx4_ib_dev *dev, struct ib_ah_attr *ah,
return 0;
}
-int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
- int attr_mask, struct ib_udata *udata)
+static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
+ const struct ib_qp_attr *attr, int attr_mask,
+ enum ib_qp_state cur_state, enum ib_qp_state new_state)
{
struct mlx4_ib_dev *dev = to_mdev(ibqp->device);
struct mlx4_ib_qp *qp = to_mqp(ibqp);
struct mlx4_qp_context *context;
enum mlx4_qp_optpar optpar = 0;
- enum ib_qp_state cur_state, new_state;
int sqd_event;
int err = -EINVAL;
@@ -670,34 +701,6 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
if (!context)
return -ENOMEM;
- mutex_lock(&qp->mutex);
-
- cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state;
- new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
-
- if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask))
- goto out;
-
- if ((attr_mask & IB_QP_PKEY_INDEX) &&
- attr->pkey_index >= dev->dev->caps.pkey_table_len) {
- goto out;
- }
-
- if ((attr_mask & IB_QP_PORT) &&
- (attr->port_num == 0 || attr->port_num > dev->dev->caps.num_ports)) {
- goto out;
- }
-
- if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
- attr->max_rd_atomic > dev->dev->caps.max_qp_init_rdma) {
- goto out;
- }
-
- if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
- attr->max_dest_rd_atomic > 1 << dev->dev->caps.max_qp_dest_rdma) {
- goto out;
- }
-
context->flags = cpu_to_be32((to_mlx4_state(new_state) << 28) |
(to_mlx4_st(ibqp->qp_type) << 16));
context->flags |= cpu_to_be32(1 << 8); /* DE? */
@@ -920,11 +923,84 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
}
out:
- mutex_unlock(&qp->mutex);
kfree(context);
return err;
}
+static const struct ib_qp_attr mlx4_ib_qp_attr = { .port_num = 1 };
+static const int mlx4_ib_qp_attr_mask_table[IB_QPT_UD + 1] = {
+ [IB_QPT_UD] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_QKEY),
+ [IB_QPT_UC] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
+ [IB_QPT_RC] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
+ [IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
+ IB_QP_QKEY),
+ [IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
+ IB_QP_QKEY),
+};
+
+int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+ int attr_mask, struct ib_udata *udata)
+{
+ struct mlx4_ib_dev *dev = to_mdev(ibqp->device);
+ struct mlx4_ib_qp *qp = to_mqp(ibqp);
+ enum ib_qp_state cur_state, new_state;
+ int err = -EINVAL;
+
+ mutex_lock(&qp->mutex);
+
+ cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state;
+ new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
+
+ if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask))
+ goto out;
+
+ if ((attr_mask & IB_QP_PKEY_INDEX) &&
+ attr->pkey_index >= dev->dev->caps.pkey_table_len) {
+ goto out;
+ }
+
+ if ((attr_mask & IB_QP_PORT) &&
+ (attr->port_num == 0 || attr->port_num > dev->dev->caps.num_ports)) {
+ goto out;
+ }
+
+ if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
+ attr->max_rd_atomic > dev->dev->caps.max_qp_init_rdma) {
+ goto out;
+ }
+
+ if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
+ attr->max_dest_rd_atomic > dev->dev->caps.max_qp_dest_rdma) {
+ goto out;
+ }
+
+ if (cur_state == new_state && cur_state == IB_QPS_RESET) {
+ err = 0;
+ goto out;
+ }
+
+ if (cur_state == IB_QPS_RESET && new_state == IB_QPS_ERR) {
+ err = __mlx4_ib_modify_qp(ibqp, &mlx4_ib_qp_attr,
+ mlx4_ib_qp_attr_mask_table[ibqp->qp_type],
+ IB_QPS_RESET, IB_QPS_INIT);
+ if (err)
+ goto out;
+ cur_state = IB_QPS_INIT;
+ }
+
+ err = __mlx4_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state);
+
+out:
+ mutex_unlock(&qp->mutex);
+ return err;
+}
+
static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
void *wqe)
{
@@ -952,6 +1028,7 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
(be32_to_cpu(ah->av.sl_tclass_flowlabel) >> 20) & 0xff;
sqp->ud_header.grh.flow_label =
ah->av.sl_tclass_flowlabel & cpu_to_be32(0xfffff);
+ sqp->ud_header.grh.hop_limit = ah->av.hop_limit;
ib_get_cached_gid(ib_dev, be32_to_cpu(ah->av.port_pd) >> 24,
ah->av.gid_index, &sqp->ud_header.grh.source_gid);
memcpy(sqp->ud_header.grh.destination_gid.raw,
@@ -1192,7 +1269,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
*/
wmb();
- if (wr->opcode < 0 || wr->opcode > ARRAY_SIZE(mlx4_ib_opcode)) {
+ if (wr->opcode < 0 || wr->opcode >= ARRAY_SIZE(mlx4_ib_opcode)) {
err = -EINVAL;
goto out;
}
diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c
index 42ab4a801d6..12fac1c8989 100644
--- a/drivers/infiniband/hw/mlx4/srq.c
+++ b/drivers/infiniband/hw/mlx4/srq.c
@@ -297,6 +297,12 @@ int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
break;
}
+ if (unlikely(srq->head == srq->tail)) {
+ err = -ENOMEM;
+ *bad_wr = wr;
+ break;
+ }
+
srq->wrid[srq->head] = wr->wr_id;
next = get_wqe(srq, srq->head);
diff --git a/drivers/infiniband/hw/mlx4/user.h b/drivers/infiniband/hw/mlx4/user.h
index 5b8eddc9fa8..88c72d56368 100644
--- a/drivers/infiniband/hw/mlx4/user.h
+++ b/drivers/infiniband/hw/mlx4/user.h
@@ -39,7 +39,7 @@
* Increment this value if any changes that break userspace ABI
* compatibility are made.
*/
-#define MLX4_IB_UVERBS_ABI_VERSION 1
+#define MLX4_IB_UVERBS_ABI_VERSION 2
/*
* Make sure that all structs defined in this file remain laid out so
@@ -87,6 +87,9 @@ struct mlx4_ib_create_srq_resp {
struct mlx4_ib_create_qp {
__u64 buf_addr;
__u64 db_addr;
+ __u8 log_sq_bb_count;
+ __u8 log_sq_stride;
+ __u8 reserved[6];
};
#endif /* MLX4_IB_USER_H */
diff --git a/drivers/infiniband/hw/mthca/mthca_av.c b/drivers/infiniband/hw/mthca/mthca_av.c
index 27caf3b0648..4b111a852ff 100644
--- a/drivers/infiniband/hw/mthca/mthca_av.c
+++ b/drivers/infiniband/hw/mthca/mthca_av.c
@@ -279,6 +279,7 @@ int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
(be32_to_cpu(ah->av->sl_tclass_flowlabel) >> 20) & 0xff;
header->grh.flow_label =
ah->av->sl_tclass_flowlabel & cpu_to_be32(0xfffff);
+ header->grh.hop_limit = ah->av->hop_limit;
ib_get_cached_gid(&dev->ib_dev,
be32_to_cpu(ah->av->port_pd) >> 24,
ah->av->gid_index % dev->limits.gid_table_len,
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 773145e2994..aa563e61de6 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -1250,12 +1250,14 @@ static void __mthca_remove_one(struct pci_dev *pdev)
int __mthca_restart_one(struct pci_dev *pdev)
{
struct mthca_dev *mdev;
+ int hca_type;
mdev = pci_get_drvdata(pdev);
if (!mdev)
return -ENODEV;
+ hca_type = mdev->hca_type;
__mthca_remove_one(pdev);
- return __mthca_init_one(pdev, mdev->hca_type);
+ return __mthca_init_one(pdev, hca_type);
}
static int __devinit mthca_init_one(struct pci_dev *pdev,
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index 2741ded8929..027664979fe 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -296,7 +296,7 @@ static int to_mthca_st(int transport)
}
}
-static void store_attrs(struct mthca_sqp *sqp, struct ib_qp_attr *attr,
+static void store_attrs(struct mthca_sqp *sqp, const struct ib_qp_attr *attr,
int attr_mask)
{
if (attr_mask & IB_QP_PKEY_INDEX)
@@ -328,7 +328,7 @@ static void init_port(struct mthca_dev *dev, int port)
mthca_warn(dev, "INIT_IB returned status %02x.\n", status);
}
-static __be32 get_hw_access_flags(struct mthca_qp *qp, struct ib_qp_attr *attr,
+static __be32 get_hw_access_flags(struct mthca_qp *qp, const struct ib_qp_attr *attr,
int attr_mask)
{
u8 dest_rd_atomic;
@@ -511,7 +511,7 @@ out:
return err;
}
-static int mthca_path_set(struct mthca_dev *dev, struct ib_ah_attr *ah,
+static int mthca_path_set(struct mthca_dev *dev, const struct ib_ah_attr *ah,
struct mthca_qp_path *path, u8 port)
{
path->g_mylmc = ah->src_path_bits & 0x7f;
@@ -539,12 +539,12 @@ static int mthca_path_set(struct mthca_dev *dev, struct ib_ah_attr *ah,
return 0;
}
-int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
- struct ib_udata *udata)
+static int __mthca_modify_qp(struct ib_qp *ibqp,
+ const struct ib_qp_attr *attr, int attr_mask,
+ enum ib_qp_state cur_state, enum ib_qp_state new_state)
{
struct mthca_dev *dev = to_mdev(ibqp->device);
struct mthca_qp *qp = to_mqp(ibqp);
- enum ib_qp_state cur_state, new_state;
struct mthca_mailbox *mailbox;
struct mthca_qp_param *qp_param;
struct mthca_qp_context *qp_context;
@@ -552,60 +552,6 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
u8 status;
int err = -EINVAL;
- mutex_lock(&qp->mutex);
-
- if (attr_mask & IB_QP_CUR_STATE) {
- cur_state = attr->cur_qp_state;
- } else {
- spin_lock_irq(&qp->sq.lock);
- spin_lock(&qp->rq.lock);
- cur_state = qp->state;
- spin_unlock(&qp->rq.lock);
- spin_unlock_irq(&qp->sq.lock);
- }
-
- new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
-
- if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask)) {
- mthca_dbg(dev, "Bad QP transition (transport %d) "
- "%d->%d with attr 0x%08x\n",
- qp->transport, cur_state, new_state,
- attr_mask);
- goto out;
- }
-
- if (cur_state == new_state && cur_state == IB_QPS_RESET) {
- err = 0;
- goto out;
- }
-
- if ((attr_mask & IB_QP_PKEY_INDEX) &&
- attr->pkey_index >= dev->limits.pkey_table_len) {
- mthca_dbg(dev, "P_Key index (%u) too large. max is %d\n",
- attr->pkey_index, dev->limits.pkey_table_len-1);
- goto out;
- }
-
- if ((attr_mask & IB_QP_PORT) &&
- (attr->port_num == 0 || attr->port_num > dev->limits.num_ports)) {
- mthca_dbg(dev, "Port number (%u) is invalid\n", attr->port_num);
- goto out;
- }
-
- if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
- attr->max_rd_atomic > dev->limits.max_qp_init_rdma) {
- mthca_dbg(dev, "Max rdma_atomic as initiator %u too large (max is %d)\n",
- attr->max_rd_atomic, dev->limits.max_qp_init_rdma);
- goto out;
- }
-
- if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
- attr->max_dest_rd_atomic > 1 << dev->qp_table.rdb_shift) {
- mthca_dbg(dev, "Max rdma_atomic as responder %u too large (max %d)\n",
- attr->max_dest_rd_atomic, 1 << dev->qp_table.rdb_shift);
- goto out;
- }
-
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox)) {
err = PTR_ERR(mailbox);
@@ -892,6 +838,98 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
out_mailbox:
mthca_free_mailbox(dev, mailbox);
+out:
+ return err;
+}
+
+static const struct ib_qp_attr dummy_init_attr = { .port_num = 1 };
+static const int dummy_init_attr_mask[] = {
+ [IB_QPT_UD] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_QKEY),
+ [IB_QPT_UC] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
+ [IB_QPT_RC] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
+ [IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
+ IB_QP_QKEY),
+ [IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
+ IB_QP_QKEY),
+};
+
+int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
+ struct ib_udata *udata)
+{
+ struct mthca_dev *dev = to_mdev(ibqp->device);
+ struct mthca_qp *qp = to_mqp(ibqp);
+ enum ib_qp_state cur_state, new_state;
+ int err = -EINVAL;
+
+ mutex_lock(&qp->mutex);
+ if (attr_mask & IB_QP_CUR_STATE) {
+ cur_state = attr->cur_qp_state;
+ } else {
+ spin_lock_irq(&qp->sq.lock);
+ spin_lock(&qp->rq.lock);
+ cur_state = qp->state;
+ spin_unlock(&qp->rq.lock);
+ spin_unlock_irq(&qp->sq.lock);
+ }
+
+ new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
+
+ if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask)) {
+ mthca_dbg(dev, "Bad QP transition (transport %d) "
+ "%d->%d with attr 0x%08x\n",
+ qp->transport, cur_state, new_state,
+ attr_mask);
+ goto out;
+ }
+
+ if ((attr_mask & IB_QP_PKEY_INDEX) &&
+ attr->pkey_index >= dev->limits.pkey_table_len) {
+ mthca_dbg(dev, "P_Key index (%u) too large. max is %d\n",
+ attr->pkey_index, dev->limits.pkey_table_len-1);
+ goto out;
+ }
+
+ if ((attr_mask & IB_QP_PORT) &&
+ (attr->port_num == 0 || attr->port_num > dev->limits.num_ports)) {
+ mthca_dbg(dev, "Port number (%u) is invalid\n", attr->port_num);
+ goto out;
+ }
+
+ if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
+ attr->max_rd_atomic > dev->limits.max_qp_init_rdma) {
+ mthca_dbg(dev, "Max rdma_atomic as initiator %u too large (max is %d)\n",
+ attr->max_rd_atomic, dev->limits.max_qp_init_rdma);
+ goto out;
+ }
+
+ if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
+ attr->max_dest_rd_atomic > 1 << dev->qp_table.rdb_shift) {
+ mthca_dbg(dev, "Max rdma_atomic as responder %u too large (max %d)\n",
+ attr->max_dest_rd_atomic, 1 << dev->qp_table.rdb_shift);
+ goto out;
+ }
+
+ if (cur_state == new_state && cur_state == IB_QPS_RESET) {
+ err = 0;
+ goto out;
+ }
+
+ if (cur_state == IB_QPS_RESET && new_state == IB_QPS_ERR) {
+ err = __mthca_modify_qp(ibqp, &dummy_init_attr,
+ dummy_init_attr_mask[ibqp->qp_type],
+ IB_QPS_RESET, IB_QPS_INIT);
+ if (err)
+ goto out;
+ cur_state = IB_QPS_INIT;
+ }
+
+ err = __mthca_modify_qp(ibqp, attr, attr_mask, cur_state, new_state);
out:
mutex_unlock(&qp->mutex);