aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/infiniband/Kconfig1
-rw-r--r--drivers/infiniband/core/ud_header.c14
-rw-r--r--drivers/infiniband/core/umem.c2
-rw-r--r--drivers/infiniband/core/uverbs_main.c61
-rw-r--r--drivers/infiniband/hw/ipath/ipath_user_pages.c3
-rw-r--r--drivers/infiniband/hw/mlx4/qp.c2
-rw-r--r--drivers/infiniband/hw/mthca/mthca_qp.c2
-rw-r--r--include/rdma/ib_pack.h1
8 files changed, 15 insertions, 71 deletions
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index dd0db67bf8d7..975adce5f40c 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -20,6 +20,7 @@ config INFINIBAND_USER_MAD
config INFINIBAND_USER_ACCESS
tristate "InfiniBand userspace access (verbs and CM)"
+ select ANON_INODES
---help---
Userspace InfiniBand access support. This enables the
kernel side of userspace verbs and the userspace
diff --git a/drivers/infiniband/core/ud_header.c b/drivers/infiniband/core/ud_header.c
index 8ec7876bedcf..650b501eb142 100644
--- a/drivers/infiniband/core/ud_header.c
+++ b/drivers/infiniband/core/ud_header.c
@@ -181,6 +181,7 @@ static const struct ib_field deth_table[] = {
* ib_ud_header_init - Initialize UD header structure
* @payload_bytes:Length of packet payload
* @grh_present:GRH flag (if non-zero, GRH will be included)
+ * @immediate_present: specify if immediate data should be used
* @header:Structure to initialize
*
* ib_ud_header_init() initializes the lrh.link_version, lrh.link_next_header,
@@ -191,21 +192,13 @@ static const struct ib_field deth_table[] = {
*/
void ib_ud_header_init(int payload_bytes,
int grh_present,
+ int immediate_present,
struct ib_ud_header *header)
{
- int header_len;
u16 packet_length;
memset(header, 0, sizeof *header);
- header_len =
- IB_LRH_BYTES +
- IB_BTH_BYTES +
- IB_DETH_BYTES;
- if (grh_present) {
- header_len += IB_GRH_BYTES;
- }
-
header->lrh.link_version = 0;
header->lrh.link_next_header =
grh_present ? IB_LNH_IBA_GLOBAL : IB_LNH_IBA_LOCAL;
@@ -231,7 +224,8 @@ void ib_ud_header_init(int payload_bytes,
header->lrh.packet_length = cpu_to_be16(packet_length);
- if (header->immediate_present)
+ header->immediate_present = immediate_present;
+ if (immediate_present)
header->bth.opcode = IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE;
else
header->bth.opcode = IB_OPCODE_UD_SEND_ONLY;
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index 6f7c096abf13..4f906f0614f0 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -136,7 +136,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
down_write(&current->mm->mmap_sem);
locked = npages + current->mm->locked_vm;
- lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur >> PAGE_SHIFT;
+ lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
if ((locked > lock_limit) && !capable(CAP_IPC_LOCK)) {
ret = -ENOMEM;
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index dbf04511cf0a..ff59a795e840 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -42,7 +42,8 @@
#include <linux/poll.h>
#include <linux/sched.h>
#include <linux/file.h>
-#include <linux/mount.h>
+#include <linux/cdev.h>
+#include <linux/anon_inodes.h>
#include <asm/uaccess.h>
@@ -52,8 +53,6 @@ MODULE_AUTHOR("Roland Dreier");
MODULE_DESCRIPTION("InfiniBand userspace verbs access");
MODULE_LICENSE("Dual BSD/GPL");
-#define INFINIBANDEVENTFS_MAGIC 0x49426576 /* "IBev" */
-
enum {
IB_UVERBS_MAJOR = 231,
IB_UVERBS_BASE_MINOR = 192,
@@ -109,8 +108,6 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file,
[IB_USER_VERBS_CMD_DESTROY_SRQ] = ib_uverbs_destroy_srq,
};
-static struct vfsmount *uverbs_event_mnt;
-
static void ib_uverbs_add_one(struct ib_device *device);
static void ib_uverbs_remove_one(struct ib_device *device);
@@ -490,7 +487,6 @@ struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
int is_async, int *fd)
{
struct ib_uverbs_event_file *ev_file;
- struct path path;
struct file *filp;
int ret;
@@ -513,27 +509,16 @@ struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
goto err;
}
- /*
- * fops_get() can't fail here, because we're coming from a
- * system call on a uverbs file, which will already have a
- * module reference.
- */
- path.mnt = uverbs_event_mnt;
- path.dentry = uverbs_event_mnt->mnt_root;
- path_get(&path);
- filp = alloc_file(&path, FMODE_READ, fops_get(&uverbs_event_fops));
+ filp = anon_inode_getfile("[uverbs-event]", &uverbs_event_fops,
+ ev_file, O_RDONLY);
if (!filp) {
ret = -ENFILE;
goto err_fd;
}
- filp->private_data = ev_file;
-
return filp;
err_fd:
- fops_put(&uverbs_event_fops);
- path_put(&path);
put_unused_fd(*fd);
err:
@@ -854,21 +839,6 @@ static void ib_uverbs_remove_one(struct ib_device *device)
kfree(uverbs_dev);
}
-static int uverbs_event_get_sb(struct file_system_type *fs_type, int flags,
- const char *dev_name, void *data,
- struct vfsmount *mnt)
-{
- return get_sb_pseudo(fs_type, "infinibandevent:", NULL,
- INFINIBANDEVENTFS_MAGIC, mnt);
-}
-
-static struct file_system_type uverbs_event_fs = {
- /* No owner field so module can be unloaded */
- .name = "infinibandeventfs",
- .get_sb = uverbs_event_get_sb,
- .kill_sb = kill_litter_super
-};
-
static int __init ib_uverbs_init(void)
{
int ret;
@@ -893,33 +863,14 @@ static int __init ib_uverbs_init(void)
goto out_class;
}
- ret = register_filesystem(&uverbs_event_fs);
- if (ret) {
- printk(KERN_ERR "user_verbs: couldn't register infinibandeventfs\n");
- goto out_class;
- }
-
- uverbs_event_mnt = kern_mount(&uverbs_event_fs);
- if (IS_ERR(uverbs_event_mnt)) {
- ret = PTR_ERR(uverbs_event_mnt);
- printk(KERN_ERR "user_verbs: couldn't mount infinibandeventfs\n");
- goto out_fs;
- }
-
ret = ib_register_client(&uverbs_client);
if (ret) {
printk(KERN_ERR "user_verbs: couldn't register client\n");
- goto out_mnt;
+ goto out_class;
}
return 0;
-out_mnt:
- mntput(uverbs_event_mnt);
-
-out_fs:
- unregister_filesystem(&uverbs_event_fs);
-
out_class:
class_destroy(uverbs_class);
@@ -933,8 +884,6 @@ out:
static void __exit ib_uverbs_cleanup(void)
{
ib_unregister_client(&uverbs_client);
- mntput(uverbs_event_mnt);
- unregister_filesystem(&uverbs_event_fs);
class_destroy(uverbs_class);
unregister_chrdev_region(IB_UVERBS_BASE_DEV, IB_UVERBS_MAX_DEVICES);
if (overflow_maj)
diff --git a/drivers/infiniband/hw/ipath/ipath_user_pages.c b/drivers/infiniband/hw/ipath/ipath_user_pages.c
index 82878e348627..eb7d59abd12d 100644
--- a/drivers/infiniband/hw/ipath/ipath_user_pages.c
+++ b/drivers/infiniband/hw/ipath/ipath_user_pages.c
@@ -59,8 +59,7 @@ static int __get_user_pages(unsigned long start_page, size_t num_pages,
size_t got;
int ret;
- lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur >>
- PAGE_SHIFT;
+ lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
if (num_pages > lock_limit) {
ret = -ENOMEM;
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index b377671264e9..ae75389937d6 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1228,7 +1228,7 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
for (i = 0; i < wr->num_sge; ++i)
send_size += wr->sg_list[i].length;
- ib_ud_header_init(send_size, mlx4_ib_ah_grh_present(ah), &sqp->ud_header);
+ ib_ud_header_init(send_size, mlx4_ib_ah_grh_present(ah), 0, &sqp->ud_header);
sqp->ud_header.lrh.service_level =
be32_to_cpu(ah->av.sl_tclass_flowlabel) >> 28;
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index c10576fa60c1..d2d172e6289c 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -1494,7 +1494,7 @@ static int build_mlx_header(struct mthca_dev *dev, struct mthca_sqp *sqp,
u16 pkey;
ib_ud_header_init(256, /* assume a MAD */
- mthca_ah_grh_present(to_mah(wr->wr.ud.ah)),
+ mthca_ah_grh_present(to_mah(wr->wr.ud.ah)), 0,
&sqp->ud_header);
err = mthca_read_ah(dev, to_mah(wr->wr.ud.ah), &sqp->ud_header);
diff --git a/include/rdma/ib_pack.h b/include/rdma/ib_pack.h
index d7fc45c4eba9..cbb50f4da3dd 100644
--- a/include/rdma/ib_pack.h
+++ b/include/rdma/ib_pack.h
@@ -232,6 +232,7 @@ void ib_unpack(const struct ib_field *desc,
void ib_ud_header_init(int payload_bytes,
int grh_present,
+ int immediate_present,
struct ib_ud_header *header);
int ib_ud_header_pack(struct ib_ud_header *header,
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 03:53:08 +0000