diff options
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/infiniband/core/ud_header.c | 14 | ||||
| -rw-r--r-- | drivers/infiniband/core/umem.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/core/uverbs_main.c | 61 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_user_pages.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx4/qp.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_qp.c | 2 |
7 files changed, 14 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(¤t->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); |
