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

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This commit is contained in:
Linus Torvalds 2006-01-13 15:29:07 -08:00
commit fb7ffeb11b
21 changed files with 287 additions and 352 deletions
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29
drivers/infiniband/core/cm.c
View File

@ -3163,22 +3163,6 @@ int ib_cm_init_qp_attr(struct ib_cm_id *cm_id,
}
EXPORT_SYMBOL(ib_cm_init_qp_attr);
static __be64 cm_get_ca_guid(struct ib_device *device)
{
struct ib_device_attr *device_attr;
__be64 guid;
int ret;
device_attr = kmalloc(sizeof *device_attr, GFP_KERNEL);
if (!device_attr)
return 0;
ret = ib_query_device(device, device_attr);
guid = ret ? 0 : device_attr->node_guid;
kfree(device_attr);
return guid;
}
static void cm_add_one(struct ib_device *device)
{
struct cm_device *cm_dev;
@ -3200,9 +3184,7 @@ static void cm_add_one(struct ib_device *device)
return;
cm_dev->device = device;
cm_dev->ca_guid = cm_get_ca_guid(device);
if (!cm_dev->ca_guid)
goto error1;
cm_dev->ca_guid = device->node_guid;
set_bit(IB_MGMT_METHOD_SEND, reg_req.method_mask);
for (i = 1; i <= device->phys_port_cnt; i++) {
@ -3217,11 +3199,11 @@ static void cm_add_one(struct ib_device *device)
cm_recv_handler,
port);
if (IS_ERR(port->mad_agent))
goto error2;
goto error1;
ret = ib_modify_port(device, i, 0, &port_modify);
if (ret)
goto error3;
goto error2;
}
ib_set_client_data(device, &cm_client, cm_dev);
@ -3230,9 +3212,9 @@ static void cm_add_one(struct ib_device *device)
write_unlock_irqrestore(&cm.device_lock, flags);
return;
error3:
ib_unregister_mad_agent(port->mad_agent);
error2:
ib_unregister_mad_agent(port->mad_agent);
error1:
port_modify.set_port_cap_mask = 0;
port_modify.clr_port_cap_mask = IB_PORT_CM_SUP;
while (--i) {
@ -3240,7 +3222,6 @@ static void cm_add_one(struct ib_device *device)
ib_modify_port(device, port->port_num, 0, &port_modify);
ib_unregister_mad_agent(port->mad_agent);
}
error1:
kfree(cm_dev);
}

23
drivers/infiniband/core/device.c
View File

@ -38,8 +38,7 @@
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <asm/semaphore.h>
#include <linux/mutex.h>
#include "core_priv.h"
@ -57,13 +56,13 @@ static LIST_HEAD(device_list);
static LIST_HEAD(client_list);
/*
* device_sem protects access to both device_list and client_list.
* device_mutex protects access to both device_list and client_list.
* There's no real point to using multiple locks or something fancier
* like an rwsem: we always access both lists, and we're always
* modifying one list or the other list. In any case this is not a
* hot path so there's no point in trying to optimize.
*/
static DECLARE_MUTEX(device_sem);
static DEFINE_MUTEX(device_mutex);
static int ib_device_check_mandatory(struct ib_device *device)
{
@ -221,7 +220,7 @@ int ib_register_device(struct ib_device *device)
{
int ret;
down(&device_sem);
mutex_lock(&device_mutex);
if (strchr(device->name, '%')) {
ret = alloc_name(device->name);
@ -259,7 +258,7 @@ int ib_register_device(struct ib_device *device)
}
out:
up(&device_sem);
mutex_unlock(&device_mutex);
return ret;
}
EXPORT_SYMBOL(ib_register_device);
@ -276,7 +275,7 @@ void ib_unregister_device(struct ib_device *device)
struct ib_client_data *context, *tmp;
unsigned long flags;
down(&device_sem);
mutex_lock(&device_mutex);
list_for_each_entry_reverse(client, &client_list, list)
if (client->remove)
@ -284,7 +283,7 @@ void ib_unregister_device(struct ib_device *device)
list_del(&device->core_list);
up(&device_sem);
mutex_unlock(&device_mutex);
spin_lock_irqsave(&device->client_data_lock, flags);
list_for_each_entry_safe(context, tmp, &device->client_data_list, list)
@ -312,14 +311,14 @@ int ib_register_client(struct ib_client *client)
{
struct ib_device *device;
down(&device_sem);
mutex_lock(&device_mutex);
list_add_tail(&client->list, &client_list);
list_for_each_entry(device, &device_list, core_list)
if (client->add && !add_client_context(device, client))
client->add(device);
up(&device_sem);
mutex_unlock(&device_mutex);
return 0;
}
@ -339,7 +338,7 @@ void ib_unregister_client(struct ib_client *client)
struct ib_device *device;
unsigned long flags;
down(&device_sem);
mutex_lock(&device_mutex);
list_for_each_entry(device, &device_list, core_list) {
if (client->remove)
@ -355,7 +354,7 @@ void ib_unregister_client(struct ib_client *client)
}
list_del(&client->list);
up(&device_sem);
mutex_unlock(&device_mutex);
}
EXPORT_SYMBOL(ib_unregister_client);

22
drivers/infiniband/core/sysfs.c
View File

@ -445,13 +445,7 @@ static int ib_device_uevent(struct class_device *cdev, char **envp,
return -ENOMEM;
/*
* It might be nice to pass the node GUID with the event, but
* right now the only way to get it is to query the device
* provider, and this can crash during device removal because
* we are will be running after driver removal has started.
* We could add a node_guid field to struct ib_device, or we
* could just let userspace read the node GUID from sysfs when
* devices are added.
* It would be nice to pass the node GUID with the event...
*/
envp[i] = NULL;
@ -623,21 +617,15 @@ static ssize_t show_sys_image_guid(struct class_device *cdev, char *buf)
static ssize_t show_node_guid(struct class_device *cdev, char *buf)
{
struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
struct ib_device_attr attr;
ssize_t ret;
if (!ibdev_is_alive(dev))
return -ENODEV;
ret = ib_query_device(dev, &attr);
if (ret)
return ret;
return sprintf(buf, "%04x:%04x:%04x:%04x\n",
be16_to_cpu(((__be16 *) &attr.node_guid)[0]),
be16_to_cpu(((__be16 *) &attr.node_guid)[1]),
be16_to_cpu(((__be16 *) &attr.node_guid)[2]),
be16_to_cpu(((__be16 *) &attr.node_guid)[3]));
be16_to_cpu(((__be16 *) &dev->node_guid)[0]),
be16_to_cpu(((__be16 *) &dev->node_guid)[1]),
be16_to_cpu(((__be16 *) &dev->node_guid)[2]),
be16_to_cpu(((__be16 *) &dev->node_guid)[3]));
}
static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);

23
drivers/infiniband/core/ucm.c
View File

@ -42,6 +42,7 @@
#include <linux/mount.h>
#include <linux/cdev.h>
#include <linux/idr.h>
#include <linux/mutex.h>
#include <asm/uaccess.h>
@ -113,7 +114,7 @@ static struct ib_client ucm_client = {
.remove = ib_ucm_remove_one
};
static DECLARE_MUTEX(ctx_id_mutex);
static DEFINE_MUTEX(ctx_id_mutex);
static DEFINE_IDR(ctx_id_table);
static DECLARE_BITMAP(dev_map, IB_UCM_MAX_DEVICES);
@ -121,7 +122,7 @@ static struct ib_ucm_context *ib_ucm_ctx_get(struct ib_ucm_file *file, int id)
{
struct ib_ucm_context *ctx;
down(&ctx_id_mutex);
mutex_lock(&ctx_id_mutex);
ctx = idr_find(&ctx_id_table, id);
if (!ctx)
ctx = ERR_PTR(-ENOENT);
@ -129,7 +130,7 @@ static struct ib_ucm_context *ib_ucm_ctx_get(struct ib_ucm_file *file, int id)
ctx = ERR_PTR(-EINVAL);
else
atomic_inc(&ctx->ref);
up(&ctx_id_mutex);
mutex_unlock(&ctx_id_mutex);
return ctx;
}
@ -186,9 +187,9 @@ static struct ib_ucm_context *ib_ucm_ctx_alloc(struct ib_ucm_file *file)
if (!result)
goto error;
down(&ctx_id_mutex);
mutex_lock(&ctx_id_mutex);
result = idr_get_new(&ctx_id_table, ctx, &ctx->id);
up(&ctx_id_mutex);
mutex_unlock(&ctx_id_mutex);
} while (result == -EAGAIN);
if (result)
@ -550,9 +551,9 @@ static ssize_t ib_ucm_create_id(struct ib_ucm_file *file,
err2:
ib_destroy_cm_id(ctx->cm_id);
err1:
down(&ctx_id_mutex);
mutex_lock(&ctx_id_mutex);
idr_remove(&ctx_id_table, ctx->id);
up(&ctx_id_mutex);
mutex_unlock(&ctx_id_mutex);
kfree(ctx);
return result;
}
@ -572,7 +573,7 @@ static ssize_t ib_ucm_destroy_id(struct ib_ucm_file *file,
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
down(&ctx_id_mutex);
mutex_lock(&ctx_id_mutex);
ctx = idr_find(&ctx_id_table, cmd.id);
if (!ctx)
ctx = ERR_PTR(-ENOENT);
@ -580,7 +581,7 @@ static ssize_t ib_ucm_destroy_id(struct ib_ucm_file *file,
ctx = ERR_PTR(-EINVAL);
else
idr_remove(&ctx_id_table, ctx->id);
up(&ctx_id_mutex);
mutex_unlock(&ctx_id_mutex);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
@ -1280,9 +1281,9 @@ static int ib_ucm_close(struct inode *inode, struct file *filp)
struct ib_ucm_context, file_list);
up(&file->mutex);
down(&ctx_id_mutex);
mutex_lock(&ctx_id_mutex);
idr_remove(&ctx_id_table, ctx->id);
up(&ctx_id_mutex);
mutex_unlock(&ctx_id_mutex);
ib_destroy_cm_id(ctx->cm_id);
ib_ucm_cleanup_events(ctx);

5
drivers/infiniband/core/uverbs.h
View File

@ -41,6 +41,7 @@
#include <linux/kref.h>
#include <linux/idr.h>
#include <linux/mutex.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_user_verbs.h>
@ -88,7 +89,7 @@ struct ib_uverbs_event_file {
struct ib_uverbs_file {
struct kref ref;
struct semaphore mutex;
struct mutex mutex;
struct ib_uverbs_device *device;
struct ib_ucontext *ucontext;
struct ib_event_handler event_handler;
@ -131,7 +132,7 @@ struct ib_ucq_object {
u32 async_events_reported;
};
extern struct semaphore ib_uverbs_idr_mutex;
extern struct mutex ib_uverbs_idr_mutex;
extern struct idr ib_uverbs_pd_idr;
extern struct idr ib_uverbs_mr_idr;
extern struct idr ib_uverbs_mw_idr;

152
drivers/infiniband/core/uverbs_cmd.c
View File

@ -67,7 +67,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
down(&file->mutex);
mutex_lock(&file->mutex);
if (file->ucontext) {
ret = -EINVAL;
@ -119,7 +119,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
fd_install(resp.async_fd, filp);
up(&file->mutex);
mutex_unlock(&file->mutex);
return in_len;
@ -131,7 +131,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
ibdev->dealloc_ucontext(ucontext);
err:
up(&file->mutex);
mutex_unlock(&file->mutex);
return ret;
}
@ -157,7 +157,7 @@ ssize_t ib_uverbs_query_device(struct ib_uverbs_file *file,
memset(&resp, 0, sizeof resp);
resp.fw_ver = attr.fw_ver;
resp.node_guid = attr.node_guid;
resp.node_guid = file->device->ib_dev->node_guid;
resp.sys_image_guid = attr.sys_image_guid;
resp.max_mr_size = attr.max_mr_size;
resp.page_size_cap = attr.page_size_cap;
@ -290,7 +290,7 @@ ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file,
pd->uobject = uobj;
atomic_set(&pd->usecnt, 0);
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
retry:
if (!idr_pre_get(&ib_uverbs_pd_idr, GFP_KERNEL)) {
@ -314,11 +314,11 @@ ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file,
goto err_idr;
}
down(&file->mutex);
mutex_lock(&file->mutex);
list_add_tail(&uobj->list, &file->ucontext->pd_list);
up(&file->mutex);
mutex_unlock(&file->mutex);
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return in_len;
@ -326,7 +326,7 @@ ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file,
idr_remove(&ib_uverbs_pd_idr, uobj->id);
err_up:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
ib_dealloc_pd(pd);
err:
@ -346,7 +346,7 @@ ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
pd = idr_find(&ib_uverbs_pd_idr, cmd.pd_handle);
if (!pd || pd->uobject->context != file->ucontext)
@ -360,14 +360,14 @@ ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file,
idr_remove(&ib_uverbs_pd_idr, cmd.pd_handle);
down(&file->mutex);
mutex_lock(&file->mutex);
list_del(&uobj->list);
up(&file->mutex);
mutex_unlock(&file->mutex);
kfree(uobj);
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return ret ? ret : in_len;
}
@ -426,7 +426,7 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
obj->umem.virt_base = cmd.hca_va;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
pd = idr_find(&ib_uverbs_pd_idr, cmd.pd_handle);
if (!pd || pd->uobject->context != file->ucontext) {
@ -476,11 +476,11 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
goto err_idr;
}
down(&file->mutex);
mutex_lock(&file->mutex);
list_add_tail(&obj->uobject.list, &file->ucontext->mr_list);
up(&file->mutex);
mutex_unlock(&file->mutex);
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return in_len;
@ -492,7 +492,7 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
atomic_dec(&pd->usecnt);
err_up:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
ib_umem_release(file->device->ib_dev, &obj->umem);
@ -513,7 +513,7 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
mr = idr_find(&ib_uverbs_mr_idr, cmd.mr_handle);
if (!mr || mr->uobject->context != file->ucontext)
@ -527,15 +527,15 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file,
idr_remove(&ib_uverbs_mr_idr, cmd.mr_handle);
down(&file->mutex);
mutex_lock(&file->mutex);
list_del(&memobj->uobject.list);
up(&file->mutex);
mutex_unlock(&file->mutex);
ib_umem_release(file->device->ib_dev, &memobj->umem);
kfree(memobj);
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return ret ? ret : in_len;
}
@ -628,7 +628,7 @@ ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file,
cq->cq_context = ev_file;
atomic_set(&cq->usecnt, 0);
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
retry:
if (!idr_pre_get(&ib_uverbs_cq_idr, GFP_KERNEL)) {
@ -653,11 +653,11 @@ ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file,
goto err_idr;
}
down(&file->mutex);
mutex_lock(&file->mutex);
list_add_tail(&uobj->uobject.list, &file->ucontext->cq_list);
up(&file->mutex);
mutex_unlock(&file->mutex);
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return in_len;
@ -665,7 +665,7 @@ ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file,
idr_remove(&ib_uverbs_cq_idr, uobj->uobject.id);
err_up:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
ib_destroy_cq(cq);
err:
@ -701,7 +701,7 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file,
goto out_wc;
}
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
cq = idr_find(&ib_uverbs_cq_idr, cmd.cq_handle);
if (!cq || cq->uobject->context != file->ucontext) {
ret = -EINVAL;
@ -731,7 +731,7 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file,
ret = -EFAULT;
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
kfree(resp);
out_wc:
@ -750,14 +750,14 @@ ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
cq = idr_find(&ib_uverbs_cq_idr, cmd.cq_handle);
if (cq && cq->uobject->context == file->ucontext) {
ib_req_notify_cq(cq, cmd.solicited_only ?
IB_CQ_SOLICITED : IB_CQ_NEXT_COMP);
ret = in_len;
}
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return ret;
}
@ -779,7 +779,7 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file,
memset(&resp, 0, sizeof resp);
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
cq = idr_find(&ib_uverbs_cq_idr, cmd.cq_handle);
if (!cq || cq->uobject->context != file->ucontext)
@ -795,9 +795,9 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file,
idr_remove(&ib_uverbs_cq_idr, cmd.cq_handle);
down(&file->mutex);
mutex_lock(&file->mutex);
list_del(&uobj->uobject.list);
up(&file->mutex);
mutex_unlock(&file->mutex);
ib_uverbs_release_ucq(file, ev_file, uobj);
@ -811,7 +811,7 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file,
ret = -EFAULT;
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return ret ? ret : in_len;
}
@ -845,7 +845,7 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
if (!uobj)
return -ENOMEM;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
pd = idr_find(&ib_uverbs_pd_idr, cmd.pd_handle);
scq = idr_find(&ib_uverbs_cq_idr, cmd.send_cq_handle);
@ -930,11 +930,11 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
goto err_idr;
}
down(&file->mutex);
mutex_lock(&file->mutex);
list_add_tail(&uobj->uevent.uobject.list, &file->ucontext->qp_list);
up(&file->mutex);
mutex_unlock(&file->mutex);
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return in_len;
@ -950,7 +950,7 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
atomic_dec(&attr.srq->usecnt);
err_up:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
kfree(uobj);
return ret;
@ -972,7 +972,7 @@ ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file,
if (!attr)
return -ENOMEM;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle);
if (!qp || qp->uobject->context != file->ucontext) {
@ -1033,7 +1033,7 @@ ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file,
ret = in_len;
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
kfree(attr);
return ret;
@ -1054,7 +1054,7 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file,
memset(&resp, 0, sizeof resp);
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle);
if (!qp || qp->uobject->context != file->ucontext)
@ -1073,9 +1073,9 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file,
idr_remove(&ib_uverbs_qp_idr, cmd.qp_handle);
down(&file->mutex);
mutex_lock(&file->mutex);
list_del(&uobj->uevent.uobject.list);
up(&file->mutex);
mutex_unlock(&file->mutex);
ib_uverbs_release_uevent(file, &uobj->uevent);
@ -1088,7 +1088,7 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file,
ret = -EFAULT;
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return ret ? ret : in_len;
}
@ -1119,7 +1119,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file,
if (!user_wr)
return -ENOMEM;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle);
if (!qp || qp->uobject->context != file->ucontext)
@ -1224,7 +1224,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file,
ret = -EFAULT;
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
while (wr) {
next = wr->next;
@ -1341,7 +1341,7 @@ ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file,
if (IS_ERR(wr))
return PTR_ERR(wr);
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle);
if (!qp || qp->uobject->context != file->ucontext)
@ -1362,7 +1362,7 @@ ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file,
ret = -EFAULT;
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
while (wr) {
next = wr->next;
@ -1392,7 +1392,7 @@ ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file,
if (IS_ERR(wr))
return PTR_ERR(wr);
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
srq = idr_find(&ib_uverbs_srq_idr, cmd.srq_handle);
if (!srq || srq->uobject->context != file->ucontext)
@ -1413,7 +1413,7 @@ ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file,
ret = -EFAULT;
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
while (wr) {
next = wr->next;
@ -1446,7 +1446,7 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file,
if (!uobj)
return -ENOMEM;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
pd = idr_find(&ib_uverbs_pd_idr, cmd.pd_handle);
if (!pd || pd->uobject->context != file->ucontext) {
@ -1498,11 +1498,11 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file,
goto err_idr;
}
down(&file->mutex);
mutex_lock(&file->mutex);
list_add_tail(&uobj->list, &file->ucontext->ah_list);
up(&file->mutex);
mutex_unlock(&file->mutex);
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return in_len;
@ -1513,7 +1513,7 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file,
ib_destroy_ah(ah);
err_up:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
kfree(uobj);
return ret;
@ -1530,7 +1530,7 @@ ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
ah = idr_find(&ib_uverbs_ah_idr, cmd.ah_handle);
if (!ah || ah->uobject->context != file->ucontext)
@ -1544,14 +1544,14 @@ ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file,
idr_remove(&ib_uverbs_ah_idr, cmd.ah_handle);
down(&file->mutex);
mutex_lock(&file->mutex);
list_del(&uobj->list);
up(&file->mutex);
mutex_unlock(&file->mutex);
kfree(uobj);
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return ret ? ret : in_len;
}
@ -1569,7 +1569,7 @@ ssize_t ib_uverbs_attach_mcast(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle);
if (!qp || qp->uobject->context != file->ucontext)
@ -1602,7 +1602,7 @@ ssize_t ib_uverbs_attach_mcast(struct ib_uverbs_file *file,
kfree(mcast);
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return ret ? ret : in_len;
}
@ -1620,7 +1620,7 @@ ssize_t ib_uverbs_detach_mcast(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle);
if (!qp || qp->uobject->context != file->ucontext)
@ -1641,7 +1641,7 @@ ssize_t ib_uverbs_detach_mcast(struct ib_uverbs_file *file,
}
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return ret ? ret : in_len;
}
@ -1673,7 +1673,7 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
if (!uobj)
return -ENOMEM;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
pd = idr_find(&ib_uverbs_pd_idr, cmd.pd_handle);
@ -1730,11 +1730,11 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
goto err_idr;
}
down(&file->mutex);
mutex_lock(&file->mutex);
list_add_tail(&uobj->uobject.list, &file->ucontext->srq_list);
up(&file->mutex);
mutex_unlock(&file->mutex);
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return in_len;
@ -1746,7 +1746,7 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
atomic_dec(&pd->usecnt);
err_up:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
kfree(uobj);
return ret;
@ -1764,7 +1764,7 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
srq = idr_find(&ib_uverbs_srq_idr, cmd.srq_handle);
if (!srq || srq->uobject->context != file->ucontext) {
@ -1778,7 +1778,7 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file,
ret = ib_modify_srq(srq, &attr, cmd.attr_mask);
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return ret ? ret : in_len;
}
@ -1796,7 +1796,7 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
memset(&resp, 0, sizeof resp);
@ -1812,9 +1812,9 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file,
idr_remove(&ib_uverbs_srq_idr, cmd.srq_handle);
down(&file->mutex);
mutex_lock(&file->mutex);
list_del(&uobj->uobject.list);
up(&file->mutex);
mutex_unlock(&file->mutex);
ib_uverbs_release_uevent(file, uobj);
@ -1827,7 +1827,7 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file,
ret = -EFAULT;
out:
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return ret ? ret : in_len;
}

8
drivers/infiniband/core/uverbs_main.c
View File

@ -66,7 +66,7 @@ enum {
static struct class *uverbs_class;
DECLARE_MUTEX(ib_uverbs_idr_mutex);
DEFINE_MUTEX(ib_uverbs_idr_mutex);
DEFINE_IDR(ib_uverbs_pd_idr);
DEFINE_IDR(ib_uverbs_mr_idr);
DEFINE_IDR(ib_uverbs_mw_idr);
@ -180,7 +180,7 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
if (!context)
return 0;
down(&ib_uverbs_idr_mutex);
mutex_lock(&ib_uverbs_idr_mutex);
list_for_each_entry_safe(uobj, tmp, &context->ah_list, list) {
struct ib_ah *ah = idr_find(&ib_uverbs_ah_idr, uobj->id);
@ -250,7 +250,7 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
kfree(uobj);
}
up(&ib_uverbs_idr_mutex);
mutex_unlock(&ib_uverbs_idr_mutex);
return context->device->dealloc_ucontext(context);
}
@ -653,7 +653,7 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp)
file->ucontext = NULL;
file->async_file = NULL;
kref_init(&file->ref);
init_MUTEX(&file->mutex);
mutex_init(&file->mutex);
filp->private_data = file;

10
drivers/infiniband/hw/mthca/mthca_av.c
View File

@ -163,6 +163,11 @@ int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah)
return 0;
}
int mthca_ah_grh_present(struct mthca_ah *ah)
{
return !!(ah->av->g_slid & 0x80);
}
int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
struct ib_ud_header *header)
{
@ -172,8 +177,7 @@ int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
header->lrh.service_level = be32_to_cpu(ah->av->sl_tclass_flowlabel) >> 28;
header->lrh.destination_lid = ah->av->dlid;
header->lrh.source_lid = cpu_to_be16(ah->av->g_slid & 0x7f);
if (ah->av->g_slid & 0x80) {
header->grh_present = 1;
if (mthca_ah_grh_present(ah)) {
header->grh.traffic_class =
(be32_to_cpu(ah->av->sl_tclass_flowlabel) >> 20) & 0xff;
header->grh.flow_label =
@ -184,8 +188,6 @@ int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
&header->grh.source_gid);
memcpy(header->grh.destination_gid.raw,
ah->av->dgid, 16);
} else {
header->grh_present = 0;
}
return 0;

7
drivers/infiniband/hw/mthca/mthca_cmd.c
View File

@ -606,7 +606,7 @@ static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm,
err = -EINVAL;
goto out;
}
for (i = 0; i < mthca_icm_size(&iter) / (1 << lg); ++i) {
for (i = 0; i < mthca_icm_size(&iter) >> lg; ++i) {
if (virt != -1) {
pages[nent * 2] = cpu_to_be64(virt);
virt += 1 << lg;
@ -727,8 +727,8 @@ int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status)
* system pages needed.
*/
dev->fw.arbel.fw_pages =
(dev->fw.arbel.fw_pages + (1 << (PAGE_SHIFT - 12)) - 1) >>
(PAGE_SHIFT - 12);
ALIGN(dev->fw.arbel.fw_pages, PAGE_SIZE >> 12) >>
(PAGE_SHIFT - 12);
mthca_dbg(dev, "Clear int @ %llx, EQ arm @ %llx, EQ set CI @ %llx\n",
(unsigned long long) dev->fw.arbel.clr_int_base,
@ -1445,6 +1445,7 @@ int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages,
* pages needed.
*/
*aux_pages = (*aux_pages + (1 << (PAGE_SHIFT - 12)) - 1) >> (PAGE_SHIFT - 12);
*aux_pages = ALIGN(*aux_pages, PAGE_SIZE >> 12) >> (PAGE_SHIFT - 12);
return 0;
}

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

@ -520,6 +520,7 @@ int mthca_create_ah(struct mthca_dev *dev,
int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah);
int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
struct ib_ud_header *header);
int mthca_ah_grh_present(struct mthca_ah *ah);
int mthca_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
int mthca_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);

28
drivers/infiniband/hw/mthca/mthca_eq.c
View File

@ -45,6 +45,7 @@
enum {
MTHCA_NUM_ASYNC_EQE = 0x80,
MTHCA_NUM_CMD_EQE = 0x80,
MTHCA_NUM_SPARE_EQE = 0x80,
MTHCA_EQ_ENTRY_SIZE = 0x20
};
@ -277,11 +278,10 @@ static int mthca_eq_int(struct mthca_dev *dev, struct mthca_eq *eq)
{
struct mthca_eqe *eqe;
int disarm_cqn;
int eqes_found = 0;
int eqes_found = 0;
int set_ci = 0;
while ((eqe = next_eqe_sw(eq))) {
int set_ci = 0;
/*
* Make sure we read EQ entry contents after we've
* checked the ownership bit.
@ -345,12 +345,6 @@ static int mthca_eq_int(struct mthca_dev *dev, struct mthca_eq *eq)
be16_to_cpu(eqe->event.cmd.token),
eqe->event.cmd.status,
be64_to_cpu(eqe->event.cmd.out_param));
/*
* cmd_event() may add more commands.
* The card will think the queue has overflowed if
* we don't tell it we've been processing events.
*/
set_ci = 1;
break;
case MTHCA_EVENT_TYPE_PORT_CHANGE:
@ -385,8 +379,16 @@ static int mthca_eq_int(struct mthca_dev *dev, struct mthca_eq *eq)
set_eqe_hw(eqe);
++eq->cons_index;
eqes_found = 1;
++set_ci;
if (unlikely(set_ci)) {
/*
* The HCA will think the queue has overflowed if we
* don't tell it we've been processing events. We
* create our EQs with MTHCA_NUM_SPARE_EQE extra
* entries, so we must update our consumer index at
* least that often.
*/
if (unlikely(set_ci >= MTHCA_NUM_SPARE_EQE)) {
/*
* Conditional on hca_type is OK here because
* this is a rare case, not the fast path.
@ -862,19 +864,19 @@ int __devinit mthca_init_eq_table(struct mthca_dev *dev)
intr = (dev->mthca_flags & MTHCA_FLAG_MSI) ?
128 : dev->eq_table.inta_pin;
err = mthca_create_eq(dev, dev->limits.num_cqs,
err = mthca_create_eq(dev, dev->limits.num_cqs + MTHCA_NUM_SPARE_EQE,
(dev->mthca_flags & MTHCA_FLAG_MSI_X) ? 128 : intr,
&dev->eq_table.eq[MTHCA_EQ_COMP]);
if (err)
goto err_out_unmap;
err = mthca_create_eq(dev, MTHCA_NUM_ASYNC_EQE,
err = mthca_create_eq(dev, MTHCA_NUM_ASYNC_EQE + MTHCA_NUM_SPARE_EQE,
(dev->mthca_flags & MTHCA_FLAG_MSI_X) ? 129 : intr,
&dev->eq_table.eq[MTHCA_EQ_ASYNC]);
if (err)
goto err_out_comp;
err = mthca_create_eq(dev, MTHCA_NUM_CMD_EQE,
err = mthca_create_eq(dev, MTHCA_NUM_CMD_EQE + MTHCA_NUM_SPARE_EQE,
(dev->mthca_flags & MTHCA_FLAG_MSI_X) ? 130 : intr,
&dev->eq_table.eq[MTHCA_EQ_CMD]);
if (err)

132
drivers/infiniband/hw/mthca/mthca_provider.c
View File

@ -33,7 +33,7 @@
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* $Id: mthca_provider.c 1397 2004-12-28 05:09:00Z roland $
* $Id: mthca_provider.c 4859 2006-01-09 21:55:10Z roland $
*/
#include <rdma/ib_smi.h>
@ -45,6 +45,14 @@
#include "mthca_user.h"
#include "mthca_memfree.h"
static void init_query_mad(struct ib_smp *mad)
{
mad->base_version = 1;
mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
mad->class_version = 1;
mad->method = IB_MGMT_METHOD_GET;
}
static int mthca_query_device(struct ib_device *ibdev,
struct ib_device_attr *props)
{
@ -55,7 +63,7 @@ static int mthca_query_device(struct ib_device *ibdev,
u8 status;
in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
if (!in_mad || !out_mad)
goto out;
@ -64,12 +72,8 @@ static int mthca_query_device(struct ib_device *ibdev,
props->fw_ver = mdev->fw_ver;
memset(in_mad, 0, sizeof *in_mad);
in_mad->base_version = 1;
in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
in_mad->class_version = 1;
in_mad->method = IB_MGMT_METHOD_GET;
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
err = mthca_MAD_IFC(mdev, 1, 1,
1, NULL, NULL, in_mad, out_mad,
@ -87,7 +91,6 @@ static int mthca_query_device(struct ib_device *ibdev,
props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30));
props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32));
memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
memcpy(&props->node_guid, out_mad->data + 12, 8);
props->max_mr_size = ~0ull;
props->page_size_cap = mdev->limits.page_size_cap;
@ -128,20 +131,16 @@ static int mthca_query_port(struct ib_device *ibdev,
int err = -ENOMEM;
u8 status;
in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
if (!in_mad || !out_mad)
goto out;
memset(props, 0, sizeof *props);
memset(in_mad, 0, sizeof *in_mad);
in_mad->base_version = 1;
in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
in_mad->class_version = 1;
in_mad->method = IB_MGMT_METHOD_GET;
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
in_mad->attr_mod = cpu_to_be32(port);
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
in_mad->attr_mod = cpu_to_be32(port);
err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
port, NULL, NULL, in_mad, out_mad,
@ -220,18 +219,14 @@ static int mthca_query_pkey(struct ib_device *ibdev,
int err = -ENOMEM;
u8 status;
in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
if (!in_mad || !out_mad)
goto out;
memset(in_mad, 0, sizeof *in_mad);
in_mad->base_version = 1;
in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
in_mad->class_version = 1;
in_mad->method = IB_MGMT_METHOD_GET;
in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
in_mad->attr_mod = cpu_to_be32(index / 32);
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
in_mad->attr_mod = cpu_to_be32(index / 32);
err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
port, NULL, NULL, in_mad, out_mad,
@ -259,18 +254,14 @@ static int mthca_query_gid(struct ib_device *ibdev, u8 port,
int err = -ENOMEM;
u8 status;
in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
if (!in_mad || !out_mad)
goto out;
memset(in_mad, 0, sizeof *in_mad);
in_mad->base_version = 1;
in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
in_mad->class_version = 1;
in_mad->method = IB_MGMT_METHOD_GET;
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
in_mad->attr_mod = cpu_to_be32(port);
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
in_mad->attr_mod = cpu_to_be32(port);
err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
port, NULL, NULL, in_mad, out_mad,
@ -284,13 +275,9 @@ static int mthca_query_gid(struct ib_device *ibdev, u8 port,
memcpy(gid->raw, out_mad->data + 8, 8);
memset(in_mad, 0, sizeof *in_mad);
in_mad->base_version = 1;
in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
in_mad->class_version = 1;
in_mad->method = IB_MGMT_METHOD_GET;
in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
in_mad->attr_mod = cpu_to_be32(index / 8);
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
in_mad->attr_mod = cpu_to_be32(index / 8);
err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
port, NULL, NULL, in_mad, out_mad,
@ -458,8 +445,10 @@ static struct ib_srq *mthca_create_srq(struct ib_pd *pd,
if (pd->uobject) {
context = to_mucontext(pd->uobject->context);
if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
return ERR_PTR(-EFAULT);
if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
err = -EFAULT;
goto err_free;
}
err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
context->db_tab, ucmd.db_index,
@ -535,8 +524,10 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
if (pd->uobject) {
context = to_mucontext(pd->uobject->context);
if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
kfree(qp);
return ERR_PTR(-EFAULT);
}
err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
context->db_tab,
@ -783,24 +774,20 @@ static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd,
if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK))
return ERR_PTR(-EINVAL);
if (num_phys_buf > 1 &&
((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK))
return ERR_PTR(-EINVAL);
mask = 0;
total_size = 0;
for (i = 0; i < num_phys_buf; ++i) {
if (i != 0 && buffer_list[i].addr & ~PAGE_MASK)
return ERR_PTR(-EINVAL);
if (i != 0 && i != num_phys_buf - 1 &&
(buffer_list[i].size & ~PAGE_MASK))
return ERR_PTR(-EINVAL);
if (i != 0)
mask |= buffer_list[i].addr;
if (i != num_phys_buf - 1)
mask |= buffer_list[i].addr + buffer_list[i].size;
total_size += buffer_list[i].size;
if (i > 0)
mask |= buffer_list[i].addr;
}
if (mask & ~PAGE_MASK)
return ERR_PTR(-EINVAL);
/* Find largest page shift we can use to cover buffers */
for (shift = PAGE_SHIFT; shift < 31; ++shift)
if (num_phys_buf > 1) {
@ -1070,11 +1057,48 @@ static struct class_device_attribute *mthca_class_attributes[] = {
&class_device_attr_board_id
};
static int mthca_init_node_data(struct mthca_dev *dev)
{
struct ib_smp *in_mad = NULL;
struct ib_smp *out_mad = NULL;
int err = -ENOMEM;
u8 status;
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
if (!in_mad || !out_mad)
goto out;
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
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_guid, out_mad->data + 12, 8);
out:
kfree(in_mad);
kfree(out_mad);
return err;
}
int mthca_register_device(struct mthca_dev *dev)
{
int ret;
int i;
ret = mthca_init_node_data(dev);
if (ret)
return ret;
strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX);
dev->ib_dev.owner = THIS_MODULE;

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

@ -1434,7 +1434,7 @@ static int build_mlx_header(struct mthca_dev *dev, struct mthca_sqp *sqp,
u16 pkey;
ib_ud_header_init(256, /* assume a MAD */
sqp->ud_header.grh_present,
mthca_ah_grh_present(to_mah(wr->wr.ud.ah)),
&sqp->ud_header);
err = mthca_read_ah(dev, to_mah(wr->wr.ud.ah), &sqp->ud_header);

6
drivers/infiniband/ulp/ipoib/ipoib.h
View File

@ -45,11 +45,11 @@
#include <linux/config.h>
#include <linux/kref.h>
#include <linux/if_infiniband.h>
#include <linux/mutex.h>
#include <net/neighbour.h>
#include <asm/atomic.h>
#include <asm/semaphore.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_pack.h>
@ -123,8 +123,8 @@ struct ipoib_dev_priv {
unsigned long flags;
struct semaphore mcast_mutex;
struct semaphore vlan_mutex;
struct mutex mcast_mutex;
struct mutex vlan_mutex;
struct rb_root path_tree;
struct list_head path_list;

31
drivers/infiniband/ulp/ipoib/ipoib_ib.c
View File

@ -52,7 +52,7 @@ MODULE_PARM_DESC(data_debug_level,
#define IPOIB_OP_RECV (1ul << 31)
static DECLARE_MUTEX(pkey_sem);
static DEFINE_MUTEX(pkey_mutex);
struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
struct ib_pd *pd, struct ib_ah_attr *attr)
@ -445,25 +445,16 @@ int ipoib_ib_dev_down(struct net_device *dev)
/* Shutdown the P_Key thread if still active */
if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) {
down(&pkey_sem);
mutex_lock(&pkey_mutex);
set_bit(IPOIB_PKEY_STOP, &priv->flags);
cancel_delayed_work(&priv->pkey_task);
up(&pkey_sem);
mutex_unlock(&pkey_mutex);
flush_workqueue(ipoib_workqueue);
}
ipoib_mcast_stop_thread(dev, 1);
/*
* Flush the multicast groups first so we stop any multicast joins. The
* completion thread may have already died and we may deadlock waiting
* for the completion thread to finish some multicast joins.
*/
ipoib_mcast_dev_flush(dev);
/* Delete broadcast and local addresses since they will be recreated */
ipoib_mcast_dev_down(dev);
ipoib_flush_paths(dev);
return 0;
@ -608,13 +599,13 @@ void ipoib_ib_dev_flush(void *_dev)
if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags))
ipoib_ib_dev_up(dev);
down(&priv->vlan_mutex);
mutex_lock(&priv->vlan_mutex);
/* Flush any child interfaces too */
list_for_each_entry(cpriv, &priv->child_intfs, list)
ipoib_ib_dev_flush(&cpriv->dev);
up(&priv->vlan_mutex);
mutex_unlock(&priv->vlan_mutex);
}
void ipoib_ib_dev_cleanup(struct net_device *dev)
@ -624,9 +615,7 @@ void ipoib_ib_dev_cleanup(struct net_device *dev)
ipoib_dbg(priv, "cleaning up ib_dev\n");
ipoib_mcast_stop_thread(dev, 1);
/* Delete the broadcast address and the local address */
ipoib_mcast_dev_down(dev);
ipoib_mcast_dev_flush(dev);
ipoib_transport_dev_cleanup(dev);
}
@ -662,12 +651,12 @@ void ipoib_pkey_poll(void *dev_ptr)
if (test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags))
ipoib_open(dev);
else {
down(&pkey_sem);
mutex_lock(&pkey_mutex);
if (!test_bit(IPOIB_PKEY_STOP, &priv->flags))
queue_delayed_work(ipoib_workqueue,
&priv->pkey_task,
HZ);
up(&pkey_sem);
mutex_unlock(&pkey_mutex);
}
}
@ -681,12 +670,12 @@ int ipoib_pkey_dev_delay_open(struct net_device *dev)
/* P_Key value not assigned yet - start polling */
if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) {
down(&pkey_sem);
mutex_lock(&pkey_mutex);
clear_bit(IPOIB_PKEY_STOP, &priv->flags);
queue_delayed_work(ipoib_workqueue,
&priv->pkey_task,
HZ);
up(&pkey_sem);
mutex_unlock(&pkey_mutex);
return 1;
}

12
drivers/infiniband/ulp/ipoib/ipoib_main.c
View File

@ -105,7 +105,7 @@ int ipoib_open(struct net_device *dev)
struct ipoib_dev_priv *cpriv;
/* Bring up any child interfaces too */
down(&priv->vlan_mutex);
mutex_lock(&priv->vlan_mutex);
list_for_each_entry(cpriv, &priv->child_intfs, list) {
int flags;
@ -115,7 +115,7 @@ int ipoib_open(struct net_device *dev)
dev_change_flags(cpriv->dev, flags | IFF_UP);
}
up(&priv->vlan_mutex);
mutex_unlock(&priv->vlan_mutex);
}
netif_start_queue(dev);
@ -140,7 +140,7 @@ static int ipoib_stop(struct net_device *dev)
struct ipoib_dev_priv *cpriv;
/* Bring down any child interfaces too */
down(&priv->vlan_mutex);
mutex_lock(&priv->vlan_mutex);
list_for_each_entry(cpriv, &priv->child_intfs, list) {
int flags;
@ -150,7 +150,7 @@ static int ipoib_stop(struct net_device *dev)
dev_change_flags(cpriv->dev, flags & ~IFF_UP);
}
up(&priv->vlan_mutex);
mutex_unlock(&priv->vlan_mutex);
}
return 0;
@ -892,8 +892,8 @@ static void ipoib_setup(struct net_device *dev)
spin_lock_init(&priv->lock);
spin_lock_init(&priv->tx_lock);
init_MUTEX(&priv->mcast_mutex);
init_MUTEX(&priv->vlan_mutex);
mutex_init(&priv->mcast_mutex);
mutex_init(&priv->vlan_mutex);
INIT_LIST_HEAD(&priv->path_list);
INIT_LIST_HEAD(&priv->child_intfs);

105
drivers/infiniband/ulp/ipoib/ipoib_multicast.c
View File

@ -55,7 +55,7 @@ MODULE_PARM_DESC(mcast_debug_level,
"Enable multicast debug tracing if > 0");
#endif
static DECLARE_MUTEX(mcast_mutex);
static DEFINE_MUTEX(mcast_mutex);
/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
struct ipoib_mcast {
@ -97,8 +97,6 @@ static void ipoib_mcast_free(struct ipoib_mcast *mcast)
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ipoib_neigh *neigh, *tmp;
unsigned long flags;
LIST_HEAD(ah_list);
struct ipoib_ah *ah, *tah;
ipoib_dbg_mcast(netdev_priv(dev),
"deleting multicast group " IPOIB_GID_FMT "\n",
@ -107,8 +105,14 @@ static void ipoib_mcast_free(struct ipoib_mcast *mcast)
spin_lock_irqsave(&priv->lock, flags);
list_for_each_entry_safe(neigh, tmp, &mcast->neigh_list, list) {
/*
* It's safe to call ipoib_put_ah() inside priv->lock
* here, because we know that mcast->ah will always
* hold one more reference, so ipoib_put_ah() will
* never do more than decrement the ref count.
*/
if (neigh->ah)
list_add_tail(&neigh->ah->list, &ah_list);
ipoib_put_ah(neigh->ah);
*to_ipoib_neigh(neigh->neighbour) = NULL;
neigh->neighbour->ops->destructor = NULL;
kfree(neigh);
@ -116,9 +120,6 @@ static void ipoib_mcast_free(struct ipoib_mcast *mcast)
spin_unlock_irqrestore(&priv->lock, flags);
list_for_each_entry_safe(ah, tah, &ah_list, list)
ipoib_put_ah(ah);
if (mcast->ah)
ipoib_put_ah(mcast->ah);
@ -384,10 +385,10 @@ static void ipoib_mcast_join_complete(int status,
if (!status && !ipoib_mcast_join_finish(mcast, mcmember)) {
mcast->backoff = 1;
down(&mcast_mutex);
mutex_lock(&mcast_mutex);
if (test_bit(IPOIB_MCAST_RUN, &priv->flags))
queue_work(ipoib_workqueue, &priv->mcast_task);
up(&mcast_mutex);
mutex_unlock(&mcast_mutex);
complete(&mcast->done);
return;
}
@ -417,7 +418,7 @@ static void ipoib_mcast_join_complete(int status,
mcast->query = NULL;
down(&mcast_mutex);
mutex_lock(&mcast_mutex);
if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) {
if (status == -ETIMEDOUT)
queue_work(ipoib_workqueue, &priv->mcast_task);
@ -426,7 +427,7 @@ static void ipoib_mcast_join_complete(int status,
mcast->backoff * HZ);
} else
complete(&mcast->done);
up(&mcast_mutex);
mutex_unlock(&mcast_mutex);
return;
}
@ -481,12 +482,12 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast,
if (mcast->backoff > IPOIB_MAX_BACKOFF_SECONDS)
mcast->backoff = IPOIB_MAX_BACKOFF_SECONDS;
down(&mcast_mutex);
mutex_lock(&mcast_mutex);
if (test_bit(IPOIB_MCAST_RUN, &priv->flags))
queue_delayed_work(ipoib_workqueue,
&priv->mcast_task,
mcast->backoff * HZ);
up(&mcast_mutex);
mutex_unlock(&mcast_mutex);
} else
mcast->query_id = ret;
}
@ -519,11 +520,11 @@ void ipoib_mcast_join_task(void *dev_ptr)
priv->broadcast = ipoib_mcast_alloc(dev, 1);
if (!priv->broadcast) {
ipoib_warn(priv, "failed to allocate broadcast group\n");
down(&mcast_mutex);
mutex_lock(&mcast_mutex);
if (test_bit(IPOIB_MCAST_RUN, &priv->flags))
queue_delayed_work(ipoib_workqueue,
&priv->mcast_task, HZ);
up(&mcast_mutex);
mutex_unlock(&mcast_mutex);
return;
}
@ -579,10 +580,10 @@ int ipoib_mcast_start_thread(struct net_device *dev)
ipoib_dbg_mcast(priv, "starting multicast thread\n");
down(&mcast_mutex);
mutex_lock(&mcast_mutex);
if (!test_and_set_bit(IPOIB_MCAST_RUN, &priv->flags))
queue_work(ipoib_workqueue, &priv->mcast_task);
up(&mcast_mutex);
mutex_unlock(&mcast_mutex);
return 0;
}
@ -594,10 +595,10 @@ int ipoib_mcast_stop_thread(struct net_device *dev, int flush)
ipoib_dbg_mcast(priv, "stopping multicast thread\n");
down(&mcast_mutex);
mutex_lock(&mcast_mutex);
clear_bit(IPOIB_MCAST_RUN, &priv->flags);
cancel_delayed_work(&priv->mcast_task);
up(&mcast_mutex);
mutex_unlock(&mcast_mutex);
if (flush)
flush_workqueue(ipoib_workqueue);
@ -741,48 +742,23 @@ void ipoib_mcast_dev_flush(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
LIST_HEAD(remove_list);
struct ipoib_mcast *mcast, *tmcast, *nmcast;
struct ipoib_mcast *mcast, *tmcast;
unsigned long flags;
ipoib_dbg_mcast(priv, "flushing multicast list\n");
spin_lock_irqsave(&priv->lock, flags);
list_for_each_entry_safe(mcast, tmcast, &priv->multicast_list, list) {
nmcast = ipoib_mcast_alloc(dev, 0);
if (nmcast) {
nmcast->flags =
mcast->flags & (1 << IPOIB_MCAST_FLAG_SENDONLY);
nmcast->mcmember.mgid = mcast->mcmember.mgid;
/* Add the new group in before the to-be-destroyed group */
list_add_tail(&nmcast->list, &mcast->list);
list_del_init(&mcast->list);
rb_replace_node(&mcast->rb_node, &nmcast->rb_node,
&priv->multicast_tree);
list_add_tail(&mcast->list, &remove_list);
} else {
ipoib_warn(priv, "could not reallocate multicast group "
IPOIB_GID_FMT "\n",
IPOIB_GID_ARG(mcast->mcmember.mgid));
}
list_del(&mcast->list);
rb_erase(&mcast->rb_node, &priv->multicast_tree);
list_add_tail(&mcast->list, &remove_list);
}
if (priv->broadcast) {
nmcast = ipoib_mcast_alloc(dev, 0);
if (nmcast) {
nmcast->mcmember.mgid = priv->broadcast->mcmember.mgid;
rb_replace_node(&priv->broadcast->rb_node,
&nmcast->rb_node,
&priv->multicast_tree);
list_add_tail(&priv->broadcast->list, &remove_list);
}
priv->broadcast = nmcast;
rb_erase(&priv->broadcast->rb_node, &priv->multicast_tree);
list_add_tail(&priv->broadcast->list, &remove_list);
priv->broadcast = NULL;
}
spin_unlock_irqrestore(&priv->lock, flags);
@ -793,24 +769,6 @@ void ipoib_mcast_dev_flush(struct net_device *dev)
}
}
void ipoib_mcast_dev_down(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
unsigned long flags;
/* Delete broadcast since it will be recreated */
if (priv->broadcast) {
ipoib_dbg_mcast(priv, "deleting broadcast group\n");
spin_lock_irqsave(&priv->lock, flags);
rb_erase(&priv->broadcast->rb_node, &priv->multicast_tree);
spin_unlock_irqrestore(&priv->lock, flags);
ipoib_mcast_leave(dev, priv->broadcast);
ipoib_mcast_free(priv->broadcast);
priv->broadcast = NULL;
}
}
void ipoib_mcast_restart_task(void *dev_ptr)
{
struct net_device *dev = dev_ptr;
@ -824,7 +782,8 @@ void ipoib_mcast_restart_task(void *dev_ptr)
ipoib_mcast_stop_thread(dev, 0);
spin_lock_irqsave(&priv->lock, flags);
spin_lock_irqsave(&dev->xmit_lock, flags);
spin_lock(&priv->lock);
/*
* Unfortunately, the networking core only gives us a list of all of
@ -896,7 +855,9 @@ void ipoib_mcast_restart_task(void *dev_ptr)
list_add_tail(&mcast->list, &remove_list);
}
}
spin_unlock_irqrestore(&priv->lock, flags);
spin_unlock(&priv->lock);
spin_unlock_irqrestore(&dev->xmit_lock, flags);
/* We have to cancel outside of the spinlock */
list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {

8
drivers/infiniband/ulp/ipoib/ipoib_verbs.c
View File

@ -65,9 +65,9 @@ int ipoib_mcast_attach(struct net_device *dev, u16 mlid, union ib_gid *mgid)
}
/* attach QP to multicast group */
down(&priv->mcast_mutex);
mutex_lock(&priv->mcast_mutex);
ret = ib_attach_mcast(priv->qp, mgid, mlid);
up(&priv->mcast_mutex);
mutex_unlock(&priv->mcast_mutex);
if (ret)
ipoib_warn(priv, "failed to attach to multicast group, ret = %d\n", ret);
@ -81,9 +81,9 @@ int ipoib_mcast_detach(struct net_device *dev, u16 mlid, union ib_gid *mgid)
struct ipoib_dev_priv *priv = netdev_priv(dev);
int ret;
down(&priv->mcast_mutex);
mutex_lock(&priv->mcast_mutex);
ret = ib_detach_mcast(priv->qp, mgid, mlid);
up(&priv->mcast_mutex);
mutex_unlock(&priv->mcast_mutex);
if (ret)
ipoib_warn(priv, "ib_detach_mcast failed (result = %d)\n", ret);

10
drivers/infiniband/ulp/ipoib/ipoib_vlan.c
View File

@ -63,7 +63,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
ppriv = netdev_priv(pdev);
down(&ppriv->vlan_mutex);
mutex_lock(&ppriv->vlan_mutex);
/*
* First ensure this isn't a duplicate. We check the parent device and
@ -124,7 +124,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
list_add_tail(&priv->list, &ppriv->child_intfs);
up(&ppriv->vlan_mutex);
mutex_unlock(&ppriv->vlan_mutex);
return 0;
@ -139,7 +139,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
free_netdev(priv->dev);
err:
up(&ppriv->vlan_mutex);
mutex_unlock(&ppriv->vlan_mutex);
return result;
}
@ -153,7 +153,7 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
ppriv = netdev_priv(pdev);
down(&ppriv->vlan_mutex);
mutex_lock(&ppriv->vlan_mutex);
list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
if (priv->pkey == pkey) {
unregister_netdev(priv->dev);
@ -167,7 +167,7 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
break;
}
}
up(&ppriv->vlan_mutex);
mutex_unlock(&ppriv->vlan_mutex);
return ret;
}

23
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -1516,8 +1516,7 @@ static ssize_t show_port(struct class_device *class_dev, char *buf)
static CLASS_DEVICE_ATTR(port, S_IRUGO, show_port, NULL);
static struct srp_host *srp_add_port(struct ib_device *device,
__be64 node_guid, u8 port)
static struct srp_host *srp_add_port(struct ib_device *device, u8 port)
{
struct srp_host *host;
@ -1532,7 +1531,7 @@ static struct srp_host *srp_add_port(struct ib_device *device,
host->port = port;
host->initiator_port_id[7] = port;
memcpy(host->initiator_port_id + 8, &node_guid, 8);
memcpy(host->initiator_port_id + 8, &device->node_guid, 8);
host->pd = ib_alloc_pd(device);
if (IS_ERR(host->pd))
@ -1580,22 +1579,11 @@ static void srp_add_one(struct ib_device *device)
{
struct list_head *dev_list;
struct srp_host *host;
struct ib_device_attr *dev_attr;
int s, e, p;
dev_attr = kmalloc(sizeof *dev_attr, GFP_KERNEL);
if (!dev_attr)
return;
if (ib_query_device(device, dev_attr)) {
printk(KERN_WARNING PFX "Couldn't query node GUID for %s.\n",
device->name);
goto out;
}
dev_list = kmalloc(sizeof *dev_list, GFP_KERNEL);
if (!dev_list)
goto out;
return;
INIT_LIST_HEAD(dev_list);
@ -1608,15 +1596,12 @@ static void srp_add_one(struct ib_device *device)
}
for (p = s; p <= e; ++p) {
host = srp_add_port(device, dev_attr->node_guid, p);
host = srp_add_port(device, p);
if (host)
list_add_tail(&host->list, dev_list);
}
ib_set_client_data(device, &srp_client, dev_list);
out:
kfree(dev_attr);
}
static void srp_remove_one(struct ib_device *device)

2
include/rdma/ib_verbs.h
View File

@ -88,7 +88,6 @@ enum ib_atomic_cap {
struct ib_device_attr {
u64 fw_ver;
__be64 node_guid;
__be64 sys_image_guid;
u64 max_mr_size;
u64 page_size_cap;
@ -951,6 +950,7 @@ struct ib_device {
u64 uverbs_cmd_mask;
int uverbs_abi_ver;
__be64 node_guid;
u8 node_type;
u8 phys_port_cnt;
};