Done in preparation for deploying RCU for the device removal
flow. Allows isolating the RCU handling to the uverb_main layer and
keeping the uverbs_cmd code as is.
Signed-off-by: Yishai Hadas <yishaih@xxxxxxxxxxxx>
Signed-off-by: Shachar Raindel <raindel@xxxxxxxxxxxx>
Reviewed-by: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/core/uverbs.h | 3 +
drivers/infiniband/core/uverbs_cmd.c | 103 ++++++++++++++++++++++-----------
drivers/infiniband/core/uverbs_main.c | 21 +++++--
3 files changed, 88 insertions(+), 39 deletions(-)
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index 92ec765..ea52db1 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -178,6 +178,7 @@ extern struct idr ib_uverbs_rule_idr;
void idr_remove_uobj(struct idr *idp, struct ib_uobject *uobj);
struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
+ struct ib_device *ib_dev,
int is_async);
void ib_uverbs_free_async_event_file(struct ib_uverbs_file *uverbs_file);
struct ib_uverbs_event_file *ib_uverbs_lookup_comp_file(int fd);
@@ -214,6 +215,7 @@ struct ib_uverbs_flow_spec {
#define IB_UVERBS_DECLARE_CMD(name) \
ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \
+ struct ib_device *ib_dev, \
const char __user *buf, int in_len, \
int out_len)
@@ -255,6 +257,7 @@ IB_UVERBS_DECLARE_CMD(close_xrcd);
#define IB_UVERBS_DECLARE_EX_CMD(name) \
int ib_uverbs_ex_##name(struct ib_uverbs_file *file, \
+ struct ib_device *ib_dev, \
struct ib_udata *ucore, \
struct ib_udata *uhw)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 5720a92..29443c0 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -282,13 +282,13 @@ static void put_xrcd_read(struct ib_uobject *uobj)
}
ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf,
int in_len, int out_len)
{
struct ib_uverbs_get_context cmd;
struct ib_uverbs_get_context_resp resp;
struct ib_udata udata;
- struct ib_device *ibdev = file->device->ib_dev;
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
struct ib_device_attr dev_attr;
#endif
@@ -313,13 +313,13 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
(unsigned long) cmd.response + sizeof resp,
in_len - sizeof cmd, out_len - sizeof resp);
- ucontext = ibdev->alloc_ucontext(ibdev, &udata);
+ ucontext = ib_dev->alloc_ucontext(ib_dev, &udata);
if (IS_ERR(ucontext)) {
ret = PTR_ERR(ucontext);
goto err;
}
- ucontext->device = ibdev;
+ ucontext->device = ib_dev;
INIT_LIST_HEAD(&ucontext->pd_list);
INIT_LIST_HEAD(&ucontext->mr_list);
INIT_LIST_HEAD(&ucontext->mw_list);
@@ -340,7 +340,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
ucontext->odp_mrs_count = 0;
INIT_LIST_HEAD(&ucontext->no_private_counters);
- ret = ib_query_device(ibdev, &dev_attr);
+ ret = ib_query_device(ib_dev, &dev_attr);
if (ret)
goto err_free;
if (!(dev_attr.device_cap_flags & IB_DEVICE_ON_DEMAND_PAGING))
@@ -355,7 +355,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
goto err_free;
resp.async_fd = ret;
- filp = ib_uverbs_alloc_event_file(file, 1);
+ filp = ib_uverbs_alloc_event_file(file, ib_dev, 1);
if (IS_ERR(filp)) {
ret = PTR_ERR(filp);
goto err_fd;
@@ -384,7 +384,7 @@ err_fd:
err_free:
put_pid(ucontext->tgid);
- ibdev->dealloc_ucontext(ucontext);
+ ib_dev->dealloc_ucontext(ucontext);
err:
mutex_unlock(&file->mutex);
@@ -392,11 +392,12 @@ err:
}
static void copy_query_dev_fields(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
struct ib_uverbs_query_device_resp *resp,
struct ib_device_attr *attr)
{
resp->fw_ver = attr->fw_ver;
- resp->node_guid = file->device->ib_dev->node_guid;
+ resp->node_guid = 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;
@@ -434,10 +435,11 @@ static void copy_query_dev_fields(struct ib_uverbs_file *file,
resp->max_srq_sge = attr->max_srq_sge;
resp->max_pkeys = attr->max_pkeys;
resp->local_ca_ack_delay = attr->local_ca_ack_delay;
- resp->phys_port_cnt = file->device->ib_dev->phys_port_cnt;
+ resp->phys_port_cnt = ib_dev->phys_port_cnt;
}
ssize_t ib_uverbs_query_device(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf,
int in_len, int out_len)
{
@@ -452,12 +454,12 @@ ssize_t ib_uverbs_query_device(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
- ret = ib_query_device(file->device->ib_dev, &attr);
+ ret = ib_query_device(ib_dev, &attr);
if (ret)
return ret;
memset(&resp, 0, sizeof resp);
- copy_query_dev_fields(file, &resp, &attr);
+ copy_query_dev_fields(file, ib_dev, &resp, &attr);
if (copy_to_user((void __user *) (unsigned long) cmd.response,
&resp, sizeof resp))
@@ -467,6 +469,7 @@ ssize_t ib_uverbs_query_device(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_query_port(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf,
int in_len, int out_len)
{
@@ -481,7 +484,7 @@ ssize_t ib_uverbs_query_port(struct ib_uverbs_file *file,
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
- ret = ib_query_port(file->device->ib_dev, cmd.port_num, &attr);
+ ret = ib_query_port(ib_dev, cmd.port_num, &attr);
if (ret)
return ret;
@@ -506,7 +509,7 @@ ssize_t ib_uverbs_query_port(struct ib_uverbs_file *file,
resp.active_width = attr.active_width;
resp.active_speed = attr.active_speed;
resp.phys_state = attr.phys_state;
- resp.link_layer = rdma_port_get_link_layer(file->device->ib_dev,
+ resp.link_layer = rdma_port_get_link_layer(ib_dev,
cmd.port_num);
if (copy_to_user((void __user *) (unsigned long) cmd.response,
@@ -517,6 +520,7 @@ ssize_t ib_uverbs_query_port(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf,
int in_len, int out_len)
{
@@ -544,14 +548,13 @@ ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file,
init_uobj(uobj, 0, file->ucontext, &pd_lock_class);
down_write(&uobj->mutex);
- pd = file->device->ib_dev->alloc_pd(file->device->ib_dev,
- file->ucontext, &udata);
+ pd = ib_dev->alloc_pd(ib_dev, file->ucontext, &udata);
if (IS_ERR(pd)) {
ret = PTR_ERR(pd);
goto err;
}
- pd->device = file->device->ib_dev;
+ pd->device = ib_dev;
pd->uobject = uobj;
atomic_set(&pd->usecnt, 0);
@@ -591,6 +594,7 @@ err:
}
ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf,
int in_len, int out_len)
{
@@ -711,6 +715,7 @@ static void xrcd_table_delete(struct ib_uverbs_device *dev,
}
ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -769,15 +774,14 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file,
down_write(&obj->uobject.mutex);
if (!xrcd) {
- xrcd = file->device->ib_dev->alloc_xrcd(file->device->ib_dev,
- file->ucontext, &udata);
+ xrcd = ib_dev->alloc_xrcd(ib_dev, file->ucontext, &udata);
if (IS_ERR(xrcd)) {
ret = PTR_ERR(xrcd);
goto err;
}
xrcd->inode = inode;
- xrcd->device = file->device->ib_dev;
+ xrcd->device = ib_dev;
atomic_set(&xrcd->usecnt, 0);
mutex_init(&xrcd->tgt_qp_mutex);
INIT_LIST_HEAD(&xrcd->tgt_qp_list);
@@ -848,6 +852,7 @@ err_tree_mutex_unlock:
}
ssize_t ib_uverbs_close_xrcd(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -925,6 +930,7 @@ void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev,
}
ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -1034,6 +1040,7 @@ err_free:
}
ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -1127,6 +1134,7 @@ put_uobjs:
}
ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -1165,8 +1173,9 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_alloc_mw(struct ib_uverbs_file *file,
- const char __user *buf, int in_len,
- int out_len)
+ struct ib_device *ib_dev,
+ const char __user *buf, int in_len,
+ int out_len)
{
struct ib_uverbs_alloc_mw cmd;
struct ib_uverbs_alloc_mw_resp resp;
@@ -1247,8 +1256,9 @@ err_free:
}
ssize_t ib_uverbs_dealloc_mw(struct ib_uverbs_file *file,
- const char __user *buf, int in_len,
- int out_len)
+ struct ib_device *ib_dev,
+ const char __user *buf, int in_len,
+ int out_len)
{
struct ib_uverbs_dealloc_mw cmd;
struct ib_mw *mw;
@@ -1285,6 +1295,7 @@ ssize_t ib_uverbs_dealloc_mw(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_create_comp_channel(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -1304,7 +1315,7 @@ ssize_t ib_uverbs_create_comp_channel(struct ib_uverbs_file *file,
return ret;
resp.fd = ret;
- filp = ib_uverbs_alloc_event_file(file, 0);
+ filp = ib_uverbs_alloc_event_file(file, ib_dev, 0);
if (IS_ERR(filp)) {
put_unused_fd(resp.fd);
return PTR_ERR(filp);
@@ -1322,6 +1333,7 @@ ssize_t ib_uverbs_create_comp_channel(struct ib_uverbs_file *file,
}
static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
struct ib_udata *ucore,
struct ib_udata *uhw,
struct ib_uverbs_ex_create_cq *cmd,
@@ -1370,14 +1382,14 @@ static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file,
if (cmd_sz > offsetof(typeof(*cmd), flags) + sizeof(cmd->flags))
attr.flags = cmd->flags;
- cq = file->device->ib_dev->create_cq(file->device->ib_dev, &attr,
+ cq = ib_dev->create_cq(ib_dev, &attr,
file->ucontext, uhw);
if (IS_ERR(cq)) {
ret = PTR_ERR(cq);
goto err_file;
}
- cq->device = file->device->ib_dev;
+ cq->device = ib_dev;
cq->uobject = &obj->uobject;
cq->comp_handler = ib_uverbs_comp_handler;
cq->event_handler = ib_uverbs_cq_event_handler;
@@ -1438,6 +1450,7 @@ static int ib_uverbs_create_cq_cb(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -1466,7 +1479,7 @@ ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file,
cmd_ex.comp_vector = cmd.comp_vector;
cmd_ex.comp_channel = cmd.comp_channel;
- obj = create_cq(file, &ucore, &uhw, &cmd_ex,
+ obj = create_cq(file, ib_dev, &ucore, &uhw, &cmd_ex,
offsetof(typeof(cmd_ex), comp_channel) +
sizeof(cmd.comp_channel), ib_uverbs_create_cq_cb,
NULL);
@@ -1489,6 +1502,7 @@ static int ib_uverbs_ex_create_cq_cb(struct ib_uverbs_file *file,
}
int ib_uverbs_ex_create_cq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
struct ib_udata *ucore,
struct ib_udata *uhw)
{
@@ -1514,7 +1528,7 @@ int ib_uverbs_ex_create_cq(struct ib_uverbs_file *file,
sizeof(resp.response_length)))
return -ENOSPC;
- obj = create_cq(file, ucore, uhw, &cmd,
+ obj = create_cq(file, ib_dev, ucore, uhw, &cmd,
min(ucore->inlen, sizeof(cmd)),
ib_uverbs_ex_create_cq_cb, NULL);
@@ -1525,6 +1539,7 @@ int ib_uverbs_ex_create_cq(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -1588,6 +1603,7 @@ static int copy_wc_to_user(void __user *dest, struct ib_wc *wc)
}
ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -1639,6 +1655,7 @@ out_put:
}
ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -1661,6 +1678,7 @@ ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -1713,6 +1731,7 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -1908,6 +1927,7 @@ err_put:
}
ssize_t ib_uverbs_open_qp(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len, int out_len)
{
struct ib_uverbs_open_qp cmd;
@@ -2002,6 +2022,7 @@ err_put:
}
ssize_t ib_uverbs_query_qp(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -2116,6 +2137,7 @@ static int modify_qp_mask(enum ib_qp_type qp_type, int mask)
}
ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -2212,6 +2234,7 @@ out:
}
ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -2270,6 +2293,7 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -2514,6 +2538,7 @@ err:
}
ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -2563,6 +2588,7 @@ out:
}
ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -2612,6 +2638,7 @@ out:
}
ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -2704,6 +2731,7 @@ err:
}
ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len, int out_len)
{
struct ib_uverbs_destroy_ah cmd;
@@ -2740,6 +2768,7 @@ ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_attach_mcast(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -2787,6 +2816,7 @@ out_put:
}
ssize_t ib_uverbs_detach_mcast(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -2867,6 +2897,7 @@ static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec,
}
int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
struct ib_udata *ucore,
struct ib_udata *uhw)
{
@@ -3027,6 +3058,7 @@ err_free_attr:
}
int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
struct ib_udata *ucore,
struct ib_udata *uhw)
{
@@ -3069,6 +3101,7 @@ int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file,
}
static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
struct ib_uverbs_create_xsrq *cmd,
struct ib_udata *udata)
{
@@ -3202,6 +3235,7 @@ err:
}
ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -3229,7 +3263,7 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
(unsigned long) cmd.response + sizeof resp,
in_len - sizeof cmd, out_len - sizeof resp);
- ret = __uverbs_create_xsrq(file, &xcmd, &udata);
+ ret = __uverbs_create_xsrq(file, ib_dev, &xcmd, &udata);
if (ret)
return ret;
@@ -3237,6 +3271,7 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_create_xsrq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len, int out_len)
{
struct ib_uverbs_create_xsrq cmd;
@@ -3254,7 +3289,7 @@ ssize_t ib_uverbs_create_xsrq(struct ib_uverbs_file *file,
(unsigned long) cmd.response + sizeof resp,
in_len - sizeof cmd, out_len - sizeof resp);
- ret = __uverbs_create_xsrq(file, &cmd, &udata);
+ ret = __uverbs_create_xsrq(file, ib_dev, &cmd, &udata);
if (ret)
return ret;
@@ -3262,6 +3297,7 @@ ssize_t ib_uverbs_create_xsrq(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -3292,6 +3328,7 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_query_srq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf,
int in_len, int out_len)
{
@@ -3332,6 +3369,7 @@ ssize_t ib_uverbs_query_srq(struct ib_uverbs_file *file,
}
ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len)
{
@@ -3389,16 +3427,15 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file,
}
int ib_uverbs_ex_query_device(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
struct ib_udata *ucore,
struct ib_udata *uhw)
{
struct ib_uverbs_ex_query_device_resp resp;
struct ib_uverbs_ex_query_device cmd;
struct ib_device_attr attr;
- struct ib_device *device;
int err;
- device = file->device->ib_dev;
if (ucore->inlen < sizeof(cmd))
return -EINVAL;
@@ -3419,11 +3456,11 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file,
memset(&attr, 0, sizeof(attr));
- err = device->query_device(device, &attr, uhw);
+ err = ib_dev->query_device(ib_dev, &attr, uhw);
if (err)
return err;
- copy_query_dev_fields(file, &resp.base, &attr);
+ copy_query_dev_fields(file, ib_dev, &resp.base, &attr);
resp.comp_mask = 0;
if (ucore->outlen < resp.response_length + sizeof(resp.odp_caps))
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 9f39978..dc968df 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -79,6 +79,7 @@ static DEFINE_SPINLOCK(map_lock);
static DECLARE_BITMAP(dev_map, IB_UVERBS_MAX_DEVICES);
static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
const char __user *buf, int in_len,
int out_len) = {
[IB_USER_VERBS_CMD_GET_CONTEXT] = ib_uverbs_get_context,
@@ -119,6 +120,7 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file,
};
static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
struct ib_udata *ucore,
struct ib_udata *uhw) = {
[IB_USER_VERBS_EX_CMD_CREATE_FLOW] = ib_uverbs_ex_create_flow,
@@ -557,6 +559,7 @@ void ib_uverbs_free_async_event_file(struct ib_uverbs_file *file)
}
struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
+ struct ib_device *ib_dev,
int is_async)
{
struct ib_uverbs_event_file *ev_file;
@@ -586,7 +589,7 @@ struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
uverbs_file->async_file = ev_file;
kref_get(&uverbs_file->async_file->ref);
INIT_IB_EVENT_HANDLER(&uverbs_file->event_handler,
- uverbs_file->device->ib_dev,
+ ib_dev,
ib_uverbs_event_handler);
ret = ib_register_event_handler(&uverbs_file->event_handler);
if (ret)
@@ -643,9 +646,13 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
size_t count, loff_t *pos)
{
struct ib_uverbs_file *file = filp->private_data;
+ struct ib_device *ib_dev = file->device->ib_dev;
struct ib_uverbs_cmd_hdr hdr;
__u32 flags;
+ if (!ib_dev)
+ return -ENODEV;
+
if (count < sizeof hdr)
return -EINVAL;
@@ -672,13 +679,13 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
command != IB_USER_VERBS_CMD_GET_CONTEXT)
return -EINVAL;
- if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << command)))
+ if (!(ib_dev->uverbs_cmd_mask & (1ull << command)))
return -ENOSYS;
if (hdr.in_words * 4 != count)
return -EINVAL;
- return uverbs_cmd_table[command](file,
+ return uverbs_cmd_table[command](file, ib_dev,
buf + sizeof(hdr),
hdr.in_words * 4,
hdr.out_words * 4);
@@ -705,7 +712,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
if (!file->ucontext)
return -EINVAL;
- if (!(file->device->ib_dev->uverbs_ex_cmd_mask & (1ull << command)))
+ if (!(ib_dev->uverbs_ex_cmd_mask & (1ull << command)))
return -ENOSYS;
if (count < (sizeof(hdr) + sizeof(ex_hdr)))
@@ -746,6 +753,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
ex_hdr.provider_out_words * 8);
err = uverbs_ex_cmd_table[command](file,
+ ib_dev,
&ucore,
&uhw);
@@ -761,11 +769,12 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
static int ib_uverbs_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct ib_uverbs_file *file = filp->private_data;
+ struct ib_device *ib_dev = file->device->ib_dev;
- if (!file->ucontext)
+ if (!ib_dev || !file->ucontext)
return -ENODEV;
else
- return file->device->ib_dev->mmap(file->ucontext, vma);
+ return ib_dev->mmap(file->ucontext, vma);
}
/*
--
1.7.1
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
