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Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband

hifive-unleashed-5.1
Linus Torvalds 2005-11-10 13:27:06 -08:00
parent 6b482c6779 94382f3562
commit 78b9c0f91c
20 changed files with 466 additions and 163 deletions
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129
drivers/infiniband/core/user_mad.c
View File

@ -31,7 +31,7 @@
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* $Id: user_mad.c 2814 2005-07-06 19:14:09Z halr $
* $Id: user_mad.c 4010 2005-11-09 23:11:56Z roland $
*/
#include <linux/module.h>
@ -110,13 +110,13 @@ struct ib_umad_device {
};
struct ib_umad_file {
struct ib_umad_port *port;
struct list_head recv_list;
struct list_head port_list;
spinlock_t recv_lock;
wait_queue_head_t recv_wait;
struct ib_mad_agent *agent[IB_UMAD_MAX_AGENTS];
struct ib_mr *mr[IB_UMAD_MAX_AGENTS];
struct ib_umad_port *port;
struct list_head recv_list;
struct list_head port_list;
spinlock_t recv_lock;
wait_queue_head_t recv_wait;
struct ib_mad_agent *agent[IB_UMAD_MAX_AGENTS];
int agents_dead;
};
struct ib_umad_packet {
@ -145,6 +145,12 @@ static void ib_umad_release_dev(struct kref *ref)
kfree(dev);
}
/* caller must hold port->mutex at least for reading */
static struct ib_mad_agent *__get_agent(struct ib_umad_file *file, int id)
{
return file->agents_dead ? NULL : file->agent[id];
}
static int queue_packet(struct ib_umad_file *file,
struct ib_mad_agent *agent,
struct ib_umad_packet *packet)
@ -152,10 +158,11 @@ static int queue_packet(struct ib_umad_file *file,
int ret = 1;
down_read(&file->port->mutex);
for (packet->mad.hdr.id = 0;
packet->mad.hdr.id < IB_UMAD_MAX_AGENTS;
packet->mad.hdr.id++)
if (agent == file->agent[packet->mad.hdr.id]) {
if (agent == __get_agent(file, packet->mad.hdr.id)) {
spin_lock_irq(&file->recv_lock);
list_add_tail(&packet->list, &file->recv_list);
spin_unlock_irq(&file->recv_lock);
@ -327,7 +334,7 @@ static ssize_t ib_umad_write(struct file *filp, const char __user *buf,
down_read(&file->port->mutex);
agent = file->agent[packet->mad.hdr.id];
agent = __get_agent(file, packet->mad.hdr.id);
if (!agent) {
ret = -EINVAL;
goto err_up;
@ -481,7 +488,7 @@ static int ib_umad_reg_agent(struct ib_umad_file *file, unsigned long arg)
}
for (agent_id = 0; agent_id < IB_UMAD_MAX_AGENTS; ++agent_id)
if (!file->agent[agent_id])
if (!__get_agent(file, agent_id))
goto found;
ret = -ENOMEM;
@ -505,29 +512,15 @@ found:
goto out;
}
file->agent[agent_id] = agent;
file->mr[agent_id] = ib_get_dma_mr(agent->qp->pd, IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(file->mr[agent_id])) {
ret = -ENOMEM;
goto err;
}
if (put_user(agent_id,
(u32 __user *) (arg + offsetof(struct ib_user_mad_reg_req, id)))) {
ret = -EFAULT;
goto err_mr;
ib_unregister_mad_agent(agent);
goto out;
}
file->agent[agent_id] = agent;
ret = 0;
goto out;
err_mr:
ib_dereg_mr(file->mr[agent_id]);
err:
file->agent[agent_id] = NULL;
ib_unregister_mad_agent(agent);
out:
up_write(&file->port->mutex);
@ -536,27 +529,29 @@ out:
static int ib_umad_unreg_agent(struct ib_umad_file *file, unsigned long arg)
{
struct ib_mad_agent *agent = NULL;
u32 id;
int ret = 0;
if (get_user(id, (u32 __user *) arg))
return -EFAULT;
down_write(&file->port->mutex);
if (get_user(id, (u32 __user *) arg)) {
ret = -EFAULT;
goto out;
}
if (id < 0 || id >= IB_UMAD_MAX_AGENTS || !file->agent[id]) {
if (id < 0 || id >= IB_UMAD_MAX_AGENTS || !__get_agent(file, id)) {
ret = -EINVAL;
goto out;
}
ib_dereg_mr(file->mr[id]);
ib_unregister_mad_agent(file->agent[id]);
agent = file->agent[id];
file->agent[id] = NULL;
out:
up_write(&file->port->mutex);
if (agent)
ib_unregister_mad_agent(agent);
return ret;
}
@ -621,23 +616,29 @@ static int ib_umad_close(struct inode *inode, struct file *filp)
struct ib_umad_file *file = filp->private_data;
struct ib_umad_device *dev = file->port->umad_dev;
struct ib_umad_packet *packet, *tmp;
int already_dead;
int i;
down_write(&file->port->mutex);
for (i = 0; i < IB_UMAD_MAX_AGENTS; ++i)
if (file->agent[i]) {
ib_dereg_mr(file->mr[i]);
ib_unregister_mad_agent(file->agent[i]);
}
already_dead = file->agents_dead;
file->agents_dead = 1;
list_for_each_entry_safe(packet, tmp, &file->recv_list, list)
kfree(packet);
list_del(&file->port_list);
up_write(&file->port->mutex);
downgrade_write(&file->port->mutex);
if (!already_dead)
for (i = 0; i < IB_UMAD_MAX_AGENTS; ++i)
if (file->agent[i])
ib_unregister_mad_agent(file->agent[i]);
up_read(&file->port->mutex);
kfree(file);
kref_put(&dev->ref, ib_umad_release_dev);
return 0;
@ -801,7 +802,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,
goto err_class;
port->sm_dev->owner = THIS_MODULE;
port->sm_dev->ops = &umad_sm_fops;
kobject_set_name(&port->dev->kobj, "issm%d", port->dev_num);
kobject_set_name(&port->sm_dev->kobj, "issm%d", port->dev_num);
if (cdev_add(port->sm_dev, base_dev + port->dev_num + IB_UMAD_MAX_PORTS, 1))
goto err_sm_cdev;
@ -863,14 +864,36 @@ static void ib_umad_kill_port(struct ib_umad_port *port)
port->ib_dev = NULL;
list_for_each_entry(file, &port->file_list, port_list)
for (id = 0; id < IB_UMAD_MAX_AGENTS; ++id) {
if (!file->agent[id])
continue;
ib_dereg_mr(file->mr[id]);
ib_unregister_mad_agent(file->agent[id]);
file->agent[id] = NULL;
}
/*
* Now go through the list of files attached to this port and
* unregister all of their MAD agents. We need to hold
* port->mutex while doing this to avoid racing with
* ib_umad_close(), but we can't hold the mutex for writing
* while calling ib_unregister_mad_agent(), since that might
* deadlock by calling back into queue_packet(). So we
* downgrade our lock to a read lock, and then drop and
* reacquire the write lock for the next iteration.
*
* We do list_del_init() on the file's list_head so that the
* list_del in ib_umad_close() is still OK, even after the
* file is removed from the list.
*/
while (!list_empty(&port->file_list)) {
file = list_entry(port->file_list.next, struct ib_umad_file,
port_list);
file->agents_dead = 1;
list_del_init(&file->port_list);
downgrade_write(&port->mutex);
for (id = 0; id < IB_UMAD_MAX_AGENTS; ++id)
if (file->agent[id])
ib_unregister_mad_agent(file->agent[id]);
up_read(&port->mutex);
down_write(&port->mutex);
}
up_write(&port->mutex);
@ -913,7 +936,7 @@ static void ib_umad_add_one(struct ib_device *device)
err:
while (--i >= s)
ib_umad_kill_port(&umad_dev->port[i]);
ib_umad_kill_port(&umad_dev->port[i - s]);
kref_put(&umad_dev->ref, ib_umad_release_dev);
}

12
drivers/infiniband/core/uverbs_cmd.c
View File

@ -708,7 +708,7 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file,
resp->wc[i].opcode = wc[i].opcode;
resp->wc[i].vendor_err = wc[i].vendor_err;
resp->wc[i].byte_len = wc[i].byte_len;
resp->wc[i].imm_data = wc[i].imm_data;
resp->wc[i].imm_data = (__u32 __force) wc[i].imm_data;
resp->wc[i].qp_num = wc[i].qp_num;
resp->wc[i].src_qp = wc[i].src_qp;
resp->wc[i].wc_flags = wc[i].wc_flags;
@ -908,7 +908,12 @@ retry:
if (ret)
goto err_destroy;
resp.qp_handle = uobj->uobject.id;
resp.qp_handle = uobj->uobject.id;
resp.max_recv_sge = attr.cap.max_recv_sge;
resp.max_send_sge = attr.cap.max_send_sge;
resp.max_recv_wr = attr.cap.max_recv_wr;
resp.max_send_wr = attr.cap.max_send_wr;
resp.max_inline_data = attr.cap.max_inline_data;
if (copy_to_user((void __user *) (unsigned long) cmd.response,
&resp, sizeof resp)) {
@ -1135,7 +1140,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file,
next->num_sge = user_wr->num_sge;
next->opcode = user_wr->opcode;
next->send_flags = user_wr->send_flags;
next->imm_data = user_wr->imm_data;
next->imm_data = (__be32 __force) user_wr->imm_data;
if (qp->qp_type == IB_QPT_UD) {
next->wr.ud.ah = idr_find(&ib_uverbs_ah_idr,
@ -1701,7 +1706,6 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file,
}
attr.max_wr = cmd.max_wr;
attr.max_sge = cmd.max_sge;
attr.srq_limit = cmd.srq_limit;
ret = ib_modify_srq(srq, &attr, cmd.attr_mask);

12
drivers/infiniband/core/verbs.c
View File

@ -325,16 +325,8 @@ EXPORT_SYMBOL(ib_destroy_cq);
int ib_resize_cq(struct ib_cq *cq,
int cqe)
{
int ret;
if (!cq->device->resize_cq)
return -ENOSYS;
ret = cq->device->resize_cq(cq, &cqe);
if (!ret)
cq->cqe = cqe;
return ret;
return cq->device->resize_cq ?
cq->device->resize_cq(cq, cqe) : -ENOSYS;
}
EXPORT_SYMBOL(ib_resize_cq);

2
drivers/infiniband/hw/mthca/mthca_catas.c
View File

@ -97,7 +97,7 @@ static void poll_catas(unsigned long dev_ptr)
}
spin_lock_irqsave(&catas_lock, flags);
if (dev->catas_err.stop)
if (!dev->catas_err.stop)
mod_timer(&dev->catas_err.timer,
jiffies + MTHCA_CATAS_POLL_INTERVAL);
spin_unlock_irqrestore(&catas_lock, flags);

2
drivers/infiniband/hw/mthca/mthca_cmd.c
View File

@ -1060,6 +1060,8 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev *dev,
dev_lim->hca.arbel.resize_srq = field & 1;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_RQ_OFFSET);
dev_lim->max_sg = min_t(int, field, dev_lim->max_sg);
MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET);
dev_lim->max_desc_sz = min_t(int, size, dev_lim->max_desc_sz);
MTHCA_GET(size, outbox, QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET);
dev_lim->mpt_entry_sz = size;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_PBL_SZ_OFFSET);

16
drivers/infiniband/hw/mthca/mthca_cq.c
View File

@ -258,7 +258,7 @@ void mthca_cq_clean(struct mthca_dev *dev, u32 cqn, u32 qpn,
{
struct mthca_cq *cq;
struct mthca_cqe *cqe;
int prod_index;
u32 prod_index;
int nfreed = 0;
spin_lock_irq(&dev->cq_table.lock);
@ -293,19 +293,15 @@ void mthca_cq_clean(struct mthca_dev *dev, u32 cqn, u32 qpn,
* Now sweep backwards through the CQ, removing CQ entries
* that match our QP by copying older entries on top of them.
*/
while (prod_index > cq->cons_index) {
cqe = get_cqe(cq, (prod_index - 1) & cq->ibcq.cqe);
while ((int) --prod_index - (int) cq->cons_index >= 0) {
cqe = get_cqe(cq, prod_index & cq->ibcq.cqe);
if (cqe->my_qpn == cpu_to_be32(qpn)) {
if (srq)
mthca_free_srq_wqe(srq, be32_to_cpu(cqe->wqe));
++nfreed;
}
else if (nfreed)
memcpy(get_cqe(cq, (prod_index - 1 + nfreed) &
cq->ibcq.cqe),
cqe,
MTHCA_CQ_ENTRY_SIZE);
--prod_index;
} else if (nfreed)
memcpy(get_cqe(cq, (prod_index + nfreed) & cq->ibcq.cqe),
cqe, MTHCA_CQ_ENTRY_SIZE);
}
if (nfreed) {

2
drivers/infiniband/hw/mthca/mthca_dev.h
View File

@ -131,6 +131,7 @@ struct mthca_limits {
int max_sg;
int num_qps;
int max_wqes;
int max_desc_sz;
int max_qp_init_rdma;
int reserved_qps;
int num_srqs;
@ -154,6 +155,7 @@ struct mthca_limits {
int reserved_mcgs;
int num_pds;
int reserved_pds;
u32 page_size_cap;
u32 flags;
u8 port_width_cap;
};

2
drivers/infiniband/hw/mthca/mthca_main.c
View File

@ -168,6 +168,7 @@ static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim
mdev->limits.max_srq_wqes = dev_lim->max_srq_sz;
mdev->limits.reserved_srqs = dev_lim->reserved_srqs;
mdev->limits.reserved_eecs = dev_lim->reserved_eecs;
mdev->limits.max_desc_sz = dev_lim->max_desc_sz;
/*
* Subtract 1 from the limit because we need to allocate a
* spare CQE so the HCA HW can tell the difference between an
@ -181,6 +182,7 @@ static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim
mdev->limits.reserved_uars = dev_lim->reserved_uars;
mdev->limits.reserved_pds = dev_lim->reserved_pds;
mdev->limits.port_width_cap = dev_lim->max_port_width;
mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1);
mdev->limits.flags = dev_lim->flags;
/* IB_DEVICE_RESIZE_MAX_WR not supported by driver.

3
drivers/infiniband/hw/mthca/mthca_provider.c
View File

@ -90,6 +90,7 @@ static int mthca_query_device(struct ib_device *ibdev,
memcpy(&props->node_guid, out_mad->data + 12, 8);
props->max_mr_size = ~0ull;
props->page_size_cap = mdev->limits.page_size_cap;
props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps;
props->max_qp_wr = mdev->limits.max_wqes;
props->max_sge = mdev->limits.max_sg;
@ -615,11 +616,11 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
return ERR_PTR(err);
}
init_attr->cap.max_inline_data = 0;
init_attr->cap.max_send_wr = qp->sq.max;
init_attr->cap.max_recv_wr = qp->rq.max;
init_attr->cap.max_send_sge = qp->sq.max_gs;
init_attr->cap.max_recv_sge = qp->rq.max_gs;
init_attr->cap.max_inline_data = qp->max_inline_data;
return &qp->ibqp;
}

1
drivers/infiniband/hw/mthca/mthca_provider.h
View File

@ -251,6 +251,7 @@ struct mthca_qp {
struct mthca_wq sq;
enum ib_sig_type sq_policy;
int send_wqe_offset;
int max_inline_data;
u64 *wrid;
union mthca_buf queue;

113
drivers/infiniband/hw/mthca/mthca_qp.c
View File

@ -885,6 +885,48 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask)
return err;
}
static void mthca_adjust_qp_caps(struct mthca_dev *dev,
struct mthca_pd *pd,
struct mthca_qp *qp)
{
int max_data_size;
/*
* Calculate the maximum size of WQE s/g segments, excluding
* the next segment and other non-data segments.
*/
max_data_size = min(dev->limits.max_desc_sz, 1 << qp->sq.wqe_shift) -
sizeof (struct mthca_next_seg);
switch (qp->transport) {
case MLX:
max_data_size -= 2 * sizeof (struct mthca_data_seg);
break;
case UD:
if (mthca_is_memfree(dev))
max_data_size -= sizeof (struct mthca_arbel_ud_seg);
else
max_data_size -= sizeof (struct mthca_tavor_ud_seg);
break;
default:
max_data_size -= sizeof (struct mthca_raddr_seg);
break;
}
/* We don't support inline data for kernel QPs (yet). */
if (!pd->ibpd.uobject)
qp->max_inline_data = 0;
else
qp->max_inline_data = max_data_size - MTHCA_INLINE_HEADER_SIZE;
qp->sq.max_gs = max_data_size / sizeof (struct mthca_data_seg);
qp->rq.max_gs = (min(dev->limits.max_desc_sz, 1 << qp->rq.wqe_shift) -
sizeof (struct mthca_next_seg)) /
sizeof (struct mthca_data_seg);
}
/*
* Allocate and register buffer for WQEs. qp->rq.max, sq.max,
* rq.max_gs and sq.max_gs must all be assigned.
@ -902,27 +944,53 @@ static int mthca_alloc_wqe_buf(struct mthca_dev *dev,
size = sizeof (struct mthca_next_seg) +
qp->rq.max_gs * sizeof (struct mthca_data_seg);
if (size > dev->limits.max_desc_sz)
return -EINVAL;
for (qp->rq.wqe_shift = 6; 1 << qp->rq.wqe_shift < size;
qp->rq.wqe_shift++)
; /* nothing */
size = sizeof (struct mthca_next_seg) +
qp->sq.max_gs * sizeof (struct mthca_data_seg);
size = qp->sq.max_gs * sizeof (struct mthca_data_seg);
switch (qp->transport) {
case MLX:
size += 2 * sizeof (struct mthca_data_seg);
break;
case UD:
if (mthca_is_memfree(dev))
size += sizeof (struct mthca_arbel_ud_seg);
else
size += sizeof (struct mthca_tavor_ud_seg);
size += mthca_is_memfree(dev) ?
sizeof (struct mthca_arbel_ud_seg) :
sizeof (struct mthca_tavor_ud_seg);
break;
case UC:
size += sizeof (struct mthca_raddr_seg);
break;
case RC:
size += sizeof (struct mthca_raddr_seg);
/*
* An atomic op will require an atomic segment, a
* remote address segment and one scatter entry.
*/
size = max_t(int, size,
sizeof (struct mthca_atomic_seg) +
sizeof (struct mthca_raddr_seg) +
sizeof (struct mthca_data_seg));
break;
default:
/* bind seg is as big as atomic + raddr segs */
size += sizeof (struct mthca_bind_seg);
break;
}
/* Make sure that we have enough space for a bind request */
size = max_t(int, size, sizeof (struct mthca_bind_seg));
size += sizeof (struct mthca_next_seg);
if (size > dev->limits.max_desc_sz)
return -EINVAL;
for (qp->sq.wqe_shift = 6; 1 << qp->sq.wqe_shift < size;
qp->sq.wqe_shift++)
; /* nothing */
@ -1066,6 +1134,8 @@ static int mthca_alloc_qp_common(struct mthca_dev *dev,
return ret;
}
mthca_adjust_qp_caps(dev, pd, qp);
/*
* If this is a userspace QP, we're done now. The doorbells
* will be allocated and buffers will be initialized in
@ -1486,8 +1556,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
}
wqe += sizeof (struct mthca_atomic_seg);
size += sizeof (struct mthca_raddr_seg) / 16 +
sizeof (struct mthca_atomic_seg);
size += (sizeof (struct mthca_raddr_seg) +
sizeof (struct mthca_atomic_seg)) / 16;
break;
case IB_WR_RDMA_WRITE:
@ -1637,6 +1707,7 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
{
struct mthca_dev *dev = to_mdev(ibqp->device);
struct mthca_qp *qp = to_mqp(ibqp);
__be32 doorbell[2];
unsigned long flags;
int err = 0;
int nreq;
@ -1654,6 +1725,22 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
ind = qp->rq.next_ind;
for (nreq = 0; wr; ++nreq, wr = wr->next) {
if (unlikely(nreq == MTHCA_TAVOR_MAX_WQES_PER_RECV_DB)) {
nreq = 0;
doorbell[0] = cpu_to_be32((qp->rq.next_ind << qp->rq.wqe_shift) | size0);
doorbell[1] = cpu_to_be32(qp->qpn << 8);
wmb();
mthca_write64(doorbell,
dev->kar + MTHCA_RECEIVE_DOORBELL,
MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock));
qp->rq.head += MTHCA_TAVOR_MAX_WQES_PER_RECV_DB;
size0 = 0;
}
if (mthca_wq_overflow(&qp->rq, nreq, qp->ibqp.recv_cq)) {
mthca_err(dev, "RQ %06x full (%u head, %u tail,"
" %d max, %d nreq)\n", qp->qpn,
@ -1711,8 +1798,6 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
out:
if (likely(nreq)) {
__be32 doorbell[2];
doorbell[0] = cpu_to_be32((qp->rq.next_ind << qp->rq.wqe_shift) | size0);
doorbell[1] = cpu_to_be32((qp->qpn << 8) | nreq);
@ -1806,8 +1891,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
}
wqe += sizeof (struct mthca_atomic_seg);
size += sizeof (struct mthca_raddr_seg) / 16 +
sizeof (struct mthca_atomic_seg);
size += (sizeof (struct mthca_raddr_seg) +
sizeof (struct mthca_atomic_seg)) / 16;
break;
case IB_WR_RDMA_READ:

22
drivers/infiniband/hw/mthca/mthca_srq.c
View File

@ -417,6 +417,7 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
{
struct mthca_dev *dev = to_mdev(ibsrq->device);
struct mthca_srq *srq = to_msrq(ibsrq);
__be32 doorbell[2];
unsigned long flags;
int err = 0;
int first_ind;
@ -432,6 +433,25 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
first_ind = srq->first_free;
for (nreq = 0; wr; ++nreq, wr = wr->next) {
if (unlikely(nreq == MTHCA_TAVOR_MAX_WQES_PER_RECV_DB)) {
nreq = 0;
doorbell[0] = cpu_to_be32(first_ind << srq->wqe_shift);
doorbell[1] = cpu_to_be32(srq->srqn << 8);
/*
* Make sure that descriptors are written
* before doorbell is rung.
*/
wmb();
mthca_write64(doorbell,
dev->kar + MTHCA_RECEIVE_DOORBELL,
MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock));
first_ind = srq->first_free;
}
ind = srq->first_free;
if (ind < 0) {
@ -494,8 +514,6 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
}
if (likely(nreq)) {
__be32 doorbell[2];
doorbell[0] = cpu_to_be32(first_ind << srq->wqe_shift);
doorbell[1] = cpu_to_be32((srq->srqn << 8) | nreq);

3
drivers/infiniband/hw/mthca/mthca_wqe.h
View File

@ -49,7 +49,8 @@ enum {
};
enum {
MTHCA_INVAL_LKEY = 0x100
MTHCA_INVAL_LKEY = 0x100,
MTHCA_TAVOR_MAX_WQES_PER_RECV_DB = 256
};
struct mthca_next_seg {

15
drivers/infiniband/ulp/ipoib/ipoib.h
View File

@ -179,6 +179,7 @@ struct ipoib_dev_priv {
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
struct list_head fs_list;
struct dentry *mcg_dentry;
struct dentry *path_dentry;
#endif
};
@ -270,7 +271,6 @@ void ipoib_mcast_dev_flush(struct net_device *dev);
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
void ipoib_mcast_iter_free(struct ipoib_mcast_iter *iter);
int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
union ib_gid *gid,
@ -278,6 +278,11 @@ void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
unsigned int *queuelen,
unsigned int *complete,
unsigned int *send_only);
struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
int ipoib_path_iter_next(struct ipoib_path_iter *iter);
void ipoib_path_iter_read(struct ipoib_path_iter *iter,
struct ipoib_path *path);
#endif
int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
@ -299,13 +304,13 @@ void ipoib_pkey_poll(void *dev);
int ipoib_pkey_dev_delay_open(struct net_device *dev);
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
int ipoib_create_debug_file(struct net_device *dev);
void ipoib_delete_debug_file(struct net_device *dev);
void ipoib_create_debug_files(struct net_device *dev);
void ipoib_delete_debug_files(struct net_device *dev);
int ipoib_register_debugfs(void);
void ipoib_unregister_debugfs(void);
#else
static inline int ipoib_create_debug_file(struct net_device *dev) { return 0; }
static inline void ipoib_delete_debug_file(struct net_device *dev) { }
static inline void ipoib_create_debug_files(struct net_device *dev) { }
static inline void ipoib_delete_debug_files(struct net_device *dev) { }
static inline int ipoib_register_debugfs(void) { return 0; }
static inline void ipoib_unregister_debugfs(void) { }
#endif

179
drivers/infiniband/ulp/ipoib/ipoib_fs.c
View File

@ -43,6 +43,18 @@ struct file_operations;
static struct dentry *ipoib_root;
static void format_gid(union ib_gid *gid, char *buf)
{
int i, n;
for (n = 0, i = 0; i < 8; ++i) {
n += sprintf(buf + n, "%x",
be16_to_cpu(((__be16 *) gid->raw)[i]));
if (i < 7)
buf[n++] = ':';
}
}
static void *ipoib_mcg_seq_start(struct seq_file *file, loff_t *pos)
{
struct ipoib_mcast_iter *iter;
@ -54,7 +66,7 @@ static void *ipoib_mcg_seq_start(struct seq_file *file, loff_t *pos)
while (n--) {
if (ipoib_mcast_iter_next(iter)) {
ipoib_mcast_iter_free(iter);
kfree(iter);
return NULL;
}
}
@ -70,7 +82,7 @@ static void *ipoib_mcg_seq_next(struct seq_file *file, void *iter_ptr,
(*pos)++;
if (ipoib_mcast_iter_next(iter)) {
ipoib_mcast_iter_free(iter);
kfree(iter);
return NULL;
}
@ -87,32 +99,32 @@ static int ipoib_mcg_seq_show(struct seq_file *file, void *iter_ptr)
struct ipoib_mcast_iter *iter = iter_ptr;
char gid_buf[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"];
union ib_gid mgid;
int i, n;
unsigned long created;
unsigned int queuelen, complete, send_only;
if (iter) {
ipoib_mcast_iter_read(iter, &mgid, &created, &queuelen,
&complete, &send_only);
if (!iter)
return 0;
for (n = 0, i = 0; i < sizeof mgid / 2; ++i) {
n += sprintf(gid_buf + n, "%x",
be16_to_cpu(((__be16 *) mgid.raw)[i]));
if (i < sizeof mgid / 2 - 1)
gid_buf[n++] = ':';
}
}
ipoib_mcast_iter_read(iter, &mgid, &created, &queuelen,
&complete, &send_only);
seq_printf(file, "GID: %*s", -(1 + (int) sizeof gid_buf), gid_buf);
format_gid(&mgid, gid_buf);
seq_printf(file,
" created: %10ld queuelen: %4d complete: %d send_only: %d\n",
created, queuelen, complete, send_only);
"GID: %s\n"
" created: %10ld\n"
" queuelen: %9d\n"
" complete: %9s\n"
" send_only: %8s\n"
"\n",
gid_buf, created, queuelen,
complete ? "yes" : "no",
send_only ? "yes" : "no");
return 0;
}
static struct seq_operations ipoib_seq_ops = {
static struct seq_operations ipoib_mcg_seq_ops = {
.start = ipoib_mcg_seq_start,
.next = ipoib_mcg_seq_next,
.stop = ipoib_mcg_seq_stop,
@ -124,7 +136,7 @@ static int ipoib_mcg_open(struct inode *inode, struct file *file)
struct seq_file *seq;
int ret;
ret = seq_open(file, &ipoib_seq_ops);
ret = seq_open(file, &ipoib_mcg_seq_ops);
if (ret)
return ret;
@ -134,7 +146,7 @@ static int ipoib_mcg_open(struct inode *inode, struct file *file)
return 0;
}
static struct file_operations ipoib_fops = {
static struct file_operations ipoib_mcg_fops = {
.owner = THIS_MODULE,
.open = ipoib_mcg_open,
.read = seq_read,
@ -142,25 +154,138 @@ static struct file_operations ipoib_fops = {
.release = seq_release
};
int ipoib_create_debug_file(struct net_device *dev)
static void *ipoib_path_seq_start(struct seq_file *file, loff_t *pos)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
char name[IFNAMSIZ + sizeof "_mcg"];
struct ipoib_path_iter *iter;
loff_t n = *pos;
snprintf(name, sizeof name, "%s_mcg", dev->name);
iter = ipoib_path_iter_init(file->private);
if (!iter)
return NULL;
priv->mcg_dentry = debugfs_create_file(name, S_IFREG | S_IRUGO,
ipoib_root, dev, &ipoib_fops);
while (n--) {
if (ipoib_path_iter_next(iter)) {
kfree(iter);
return NULL;
}
}
return priv->mcg_dentry ? 0 : -ENOMEM;
return iter;
}
void ipoib_delete_debug_file(struct net_device *dev)
static void *ipoib_path_seq_next(struct seq_file *file, void *iter_ptr,
loff_t *pos)
{
struct ipoib_path_iter *iter = iter_ptr;
(*pos)++;
if (ipoib_path_iter_next(iter)) {
kfree(iter);
return NULL;
}
return iter;
}
static void ipoib_path_seq_stop(struct seq_file *file, void *iter_ptr)
{
/* nothing for now */
}
static int ipoib_path_seq_show(struct seq_file *file, void *iter_ptr)
{
struct ipoib_path_iter *iter = iter_ptr;
char gid_buf[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"];
struct ipoib_path path;
int rate;
if (!iter)
return 0;
ipoib_path_iter_read(iter, &path);
format_gid(&path.pathrec.dgid, gid_buf);
seq_printf(file,
"GID: %s\n"
" complete: %6s\n",
gid_buf, path.pathrec.dlid ? "yes" : "no");
if (path.pathrec.dlid) {
rate = ib_sa_rate_enum_to_int(path.pathrec.rate) * 25;
seq_printf(file,
" DLID: 0x%04x\n"
" SL: %12d\n"
" rate: %*d%s Gb/sec\n",
be16_to_cpu(path.pathrec.dlid),
path.pathrec.sl,
10 - ((rate % 10) ? 2 : 0),
rate / 10, rate % 10 ? ".5" : "");
}
seq_putc(file, '\n');
return 0;
}
static struct seq_operations ipoib_path_seq_ops = {
.start = ipoib_path_seq_start,
.next = ipoib_path_seq_next,
.stop = ipoib_path_seq_stop,
.show = ipoib_path_seq_show,
};
static int ipoib_path_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int ret;
ret = seq_open(file, &ipoib_path_seq_ops);
if (ret)
return ret;
seq = file->private_data;
seq->private = inode->u.generic_ip;
return 0;
}
static struct file_operations ipoib_path_fops = {
.owner = THIS_MODULE,
.open = ipoib_path_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release
};
void ipoib_create_debug_files(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
char name[IFNAMSIZ + sizeof "_path"];
snprintf(name, sizeof name, "%s_mcg", dev->name);
priv->mcg_dentry = debugfs_create_file(name, S_IFREG | S_IRUGO,
ipoib_root, dev, &ipoib_mcg_fops);
if (!priv->mcg_dentry)
ipoib_warn(priv, "failed to create mcg debug file\n");
snprintf(name, sizeof name, "%s_path", dev->name);
priv->path_dentry = debugfs_create_file(name, S_IFREG | S_IRUGO,
ipoib_root, dev, &ipoib_path_fops);
if (!priv->path_dentry)
ipoib_warn(priv, "failed to create path debug file\n");
}
void ipoib_delete_debug_files(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
if (priv->mcg_dentry)
debugfs_remove(priv->mcg_dentry);
if (priv->path_dentry)
debugfs_remove(priv->path_dentry);
}
int ipoib_register_debugfs(void)

72
drivers/infiniband/ulp/ipoib/ipoib_main.c
View File

@ -58,6 +58,11 @@ module_param_named(debug_level, ipoib_debug_level, int, 0644);
MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
#endif
struct ipoib_path_iter {
struct net_device *dev;
struct ipoib_path path;
};
static const u8 ipv4_bcast_addr[] = {
0x00, 0xff, 0xff, 0xff,
0xff, 0x12, 0x40, 0x1b, 0x00, 0x00, 0x00, 0x00,
@ -250,6 +255,64 @@ static void path_free(struct net_device *dev, struct ipoib_path *path)
kfree(path);
}
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev)
{
struct ipoib_path_iter *iter;
iter = kmalloc(sizeof *iter, GFP_KERNEL);
if (!iter)
return NULL;
iter->dev = dev;
memset(iter->path.pathrec.dgid.raw, 0, 16);
if (ipoib_path_iter_next(iter)) {
kfree(iter);
return NULL;
}
return iter;
}
int ipoib_path_iter_next(struct ipoib_path_iter *iter)
{
struct ipoib_dev_priv *priv = netdev_priv(iter->dev);
struct rb_node *n;
struct ipoib_path *path;
int ret = 1;
spin_lock_irq(&priv->lock);
n = rb_first(&priv->path_tree);
while (n) {
path = rb_entry(n, struct ipoib_path, rb_node);
if (memcmp(iter->path.pathrec.dgid.raw, path->pathrec.dgid.raw,
sizeof (union ib_gid)) < 0) {
iter->path = *path;
ret = 0;
break;
}
n = rb_next(n);
}
spin_unlock_irq(&priv->lock);
return ret;
}
void ipoib_path_iter_read(struct ipoib_path_iter *iter,
struct ipoib_path *path)
{
*path = iter->path;
}
#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
void ipoib_flush_paths(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
@ -763,7 +826,7 @@ void ipoib_dev_cleanup(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev), *cpriv, *tcpriv;
ipoib_delete_debug_file(dev);
ipoib_delete_debug_files(dev);
/* Delete any child interfaces first */
list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list) {
@ -972,8 +1035,7 @@ static struct net_device *ipoib_add_port(const char *format,
goto register_failed;
}
if (ipoib_create_debug_file(priv->dev))
goto debug_failed;
ipoib_create_debug_files(priv->dev);
if (ipoib_add_pkey_attr(priv->dev))
goto sysfs_failed;
@ -987,9 +1049,7 @@ static struct net_device *ipoib_add_port(const char *format,
return priv->dev;
sysfs_failed:
ipoib_delete_debug_file(priv->dev);
debug_failed:
ipoib_delete_debug_files(priv->dev);
unregister_netdev(priv->dev);
register_failed:

26
drivers/infiniband/ulp/ipoib/ipoib_multicast.c
View File

@ -120,12 +120,8 @@ static void ipoib_mcast_free(struct ipoib_mcast *mcast)
if (mcast->ah)
ipoib_put_ah(mcast->ah);
while (!skb_queue_empty(&mcast->pkt_queue)) {
struct sk_buff *skb = skb_dequeue(&mcast->pkt_queue);
skb->dev = dev;
dev_kfree_skb_any(skb);
}
while (!skb_queue_empty(&mcast->pkt_queue))
dev_kfree_skb_any(skb_dequeue(&mcast->pkt_queue));
kfree(mcast);
}
@ -317,13 +313,8 @@ ipoib_mcast_sendonly_join_complete(int status,
IPOIB_GID_ARG(mcast->mcmember.mgid), status);
/* Flush out any queued packets */
while (!skb_queue_empty(&mcast->pkt_queue)) {
struct sk_buff *skb = skb_dequeue(&mcast->pkt_queue);
skb->dev = dev;
dev_kfree_skb_any(skb);
}
while (!skb_queue_empty(&mcast->pkt_queue))
dev_kfree_skb_any(skb_dequeue(&mcast->pkt_queue));
/* Clear the busy flag so we try again */
clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
@ -928,21 +919,16 @@ struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev)
return NULL;
iter->dev = dev;
memset(iter->mgid.raw, 0, sizeof iter->mgid);
memset(iter->mgid.raw, 0, 16);
if (ipoib_mcast_iter_next(iter)) {
ipoib_mcast_iter_free(iter);
kfree(iter);
return NULL;
}
return iter;
}
void ipoib_mcast_iter_free(struct ipoib_mcast_iter *iter)
{
kfree(iter);
}
int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter)
{
struct ipoib_dev_priv *priv = netdev_priv(iter->dev);

7
drivers/infiniband/ulp/ipoib/ipoib_vlan.c
View File

@ -113,8 +113,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
priv->parent = ppriv->dev;
if (ipoib_create_debug_file(priv->dev))
goto debug_failed;
ipoib_create_debug_files(priv->dev);
if (ipoib_add_pkey_attr(priv->dev))
goto sysfs_failed;
@ -130,9 +129,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
return 0;
sysfs_failed:
ipoib_delete_debug_file(priv->dev);
debug_failed:
ipoib_delete_debug_files(priv->dev);
unregister_netdev(priv->dev);
register_failed:

9
include/rdma/ib_user_verbs.h
View File

@ -43,7 +43,7 @@
* Increment this value if any changes that break userspace ABI
* compatibility are made.
*/
#define IB_USER_VERBS_ABI_VERSION 3
#define IB_USER_VERBS_ABI_VERSION 4
enum {
IB_USER_VERBS_CMD_GET_CONTEXT,
@ -333,6 +333,11 @@ struct ib_uverbs_create_qp {
struct ib_uverbs_create_qp_resp {
__u32 qp_handle;
__u32 qpn;
__u32 max_send_wr;
__u32 max_recv_wr;
__u32 max_send_sge;
__u32 max_recv_sge;
__u32 max_inline_data;
};
/*
@ -552,9 +557,7 @@ struct ib_uverbs_modify_srq {
__u32 srq_handle;
__u32 attr_mask;
__u32 max_wr;
__u32 max_sge;
__u32 srq_limit;
__u32 reserved;
__u64 driver_data[0];
};

2
include/rdma/ib_verbs.h
View File

@ -881,7 +881,7 @@ struct ib_device {
struct ib_ucontext *context,
struct ib_udata *udata);
int (*destroy_cq)(struct ib_cq *cq);
int (*resize_cq)(struct ib_cq *cq, int *cqe);
int (*resize_cq)(struct ib_cq *cq, int cqe);
int (*poll_cq)(struct ib_cq *cq, int num_entries,
struct ib_wc *wc);
int (*peek_cq)(struct ib_cq *cq, int wc_cnt);