diff options
Diffstat (limited to 'include')
25 files changed, 1177 insertions, 228 deletions
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h index c2be029b9b53..6c809440f319 100644 --- a/include/linux/dynamic_debug.h +++ b/include/linux/dynamic_debug.h @@ -71,6 +71,13 @@ void __dynamic_netdev_dbg(struct _ddebug *descriptor, const struct net_device *dev, const char *fmt, ...); +struct ib_device; + +extern __printf(3, 4) +void __dynamic_ibdev_dbg(struct _ddebug *descriptor, + const struct ib_device *ibdev, + const char *fmt, ...); + #define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \ static struct _ddebug __aligned(8) \ __attribute__((section("__verbose"))) name = { \ @@ -154,6 +161,10 @@ void __dynamic_netdev_dbg(struct _ddebug *descriptor, _dynamic_func_call(fmt, __dynamic_netdev_dbg, \ dev, fmt, ##__VA_ARGS__) +#define dynamic_ibdev_dbg(dev, fmt, ...) \ + _dynamic_func_call(fmt, __dynamic_ibdev_dbg, \ + dev, fmt, ##__VA_ARGS__) + #define dynamic_hex_dump(prefix_str, prefix_type, rowsize, \ groupsize, buf, len, ascii) \ _dynamic_func_call_no_desc(__builtin_constant_p(prefix_str) ? prefix_str : "hexdump", \ diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 5a39b323c52e..5a27246db883 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -689,7 +689,6 @@ struct mlx5_core_dev { #endif struct mlx5_clock clock; struct mlx5_ib_clock_info *clock_info; - struct page *clock_info_page; struct mlx5_fw_tracer *tracer; }; diff --git a/include/linux/overflow.h b/include/linux/overflow.h index 40b48e2133cb..15eb85de9226 100644 --- a/include/linux/overflow.h +++ b/include/linux/overflow.h @@ -36,6 +36,12 @@ #define type_max(T) ((T)((__type_half_max(T) - 1) + __type_half_max(T))) #define type_min(T) ((T)((T)-type_max(T)-(T)1)) +/* + * Avoids triggering -Wtype-limits compilation warning, + * while using unsigned data types to check a < 0. + */ +#define is_non_negative(a) ((a) > 0 || (a) == 0) +#define is_negative(a) (!(is_non_negative(a))) #ifdef COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW /* @@ -227,10 +233,10 @@ typeof(d) _d = d; \ u64 _a_full = _a; \ unsigned int _to_shift = \ - _s >= 0 && _s < 8 * sizeof(*d) ? _s : 0; \ + is_non_negative(_s) && _s < 8 * sizeof(*d) ? _s : 0; \ *_d = (_a_full << _to_shift); \ - (_to_shift != _s || *_d < 0 || _a < 0 || \ - (*_d >> _to_shift) != _a); \ + (_to_shift != _s || is_negative(*_d) || is_negative(_a) || \ + (*_d >> _to_shift) != _a); \ }) /** diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index b4be960c7e5d..30a9a55c28ba 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -340,11 +340,11 @@ int sg_alloc_table_chained(struct sg_table *table, int nents, * sg page iterator * * Iterates over sg entries page-by-page. On each successful iteration, you - * can call sg_page_iter_page(@piter) to get the current page and its dma - * address. @piter->sg will point to the sg holding this page and - * @piter->sg_pgoffset to the page's page offset within the sg. The iteration - * will stop either when a maximum number of sg entries was reached or a - * terminating sg (sg_last(sg) == true) was reached. + * can call sg_page_iter_page(@piter) to get the current page. + * @piter->sg will point to the sg holding this page and @piter->sg_pgoffset to + * the page's page offset within the sg. The iteration will stop either when a + * maximum number of sg entries was reached or a terminating sg + * (sg_last(sg) == true) was reached. */ struct sg_page_iter { struct scatterlist *sg; /* sg holding the page */ diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h index 62e990b620aa..870b5e6c06db 100644 --- a/include/rdma/ib_cache.h +++ b/include/rdma/ib_cache.h @@ -54,6 +54,10 @@ const struct ib_gid_attr *rdma_find_gid_by_filter( void *), void *context); +int rdma_read_gid_l2_fields(const struct ib_gid_attr *attr, + u16 *vlan_id, u8 *smac); +struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr); + /** * ib_get_cached_pkey - Returns a cached PKey table entry * @device: The device to query. diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h index 79ba8219e7dc..eea946fcc819 100644 --- a/include/rdma/ib_mad.h +++ b/include/rdma/ib_mad.h @@ -198,7 +198,7 @@ struct ib_sa_hdr { __be16 attr_offset; __be16 reserved; ib_sa_comp_mask comp_mask; -} __attribute__ ((packed)); +} __packed; struct ib_mad { struct ib_mad_hdr mad_hdr; @@ -227,7 +227,7 @@ struct ib_sa_mad { struct ib_rmpp_hdr rmpp_hdr; struct ib_sa_hdr sa_hdr; u8 data[IB_MGMT_SA_DATA]; -} __attribute__ ((packed)); +} __packed; struct ib_vendor_mad { struct ib_mad_hdr mad_hdr; diff --git a/include/rdma/ib_smi.h b/include/rdma/ib_smi.h index b439e988408e..7be0028f155c 100644 --- a/include/rdma/ib_smi.h +++ b/include/rdma/ib_smi.h @@ -61,7 +61,7 @@ struct ib_smp { u8 data[IB_SMP_DATA_SIZE]; u8 initial_path[IB_SMP_MAX_PATH_HOPS]; u8 return_path[IB_SMP_MAX_PATH_HOPS]; -} __attribute__ ((packed)); +} __packed; #define IB_SMP_DIRECTION cpu_to_be16(0x8000) diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h index 73af05db04c7..040d853077c6 100644 --- a/include/rdma/ib_umem.h +++ b/include/rdma/ib_umem.h @@ -48,12 +48,11 @@ struct ib_umem { unsigned long address; int page_shift; u32 writable : 1; - u32 hugetlb : 1; u32 is_odp : 1; struct work_struct work; struct sg_table sg_head; int nmap; - int npages; + unsigned int sg_nents; }; /* Returns the offset of the umem start relative to the first page. */ @@ -87,6 +86,9 @@ void ib_umem_release(struct ib_umem *umem); int ib_umem_page_count(struct ib_umem *umem); int ib_umem_copy_from(void *dst, struct ib_umem *umem, size_t offset, size_t length); +unsigned long ib_umem_find_best_pgsz(struct ib_umem *umem, + unsigned long pgsz_bitmap, + unsigned long virt); #else /* CONFIG_INFINIBAND_USER_MEM */ @@ -104,6 +106,12 @@ static inline int ib_umem_copy_from(void *dst, struct ib_umem *umem, size_t offs size_t length) { return -EINVAL; } +static inline int ib_umem_find_best_pgsz(struct ib_umem *umem, + unsigned long pgsz_bitmap, + unsigned long virt) { + return -EINVAL; +} + #endif /* CONFIG_INFINIBAND_USER_MEM */ #endif /* IB_UMEM_H */ diff --git a/include/rdma/ib_umem_odp.h b/include/rdma/ib_umem_odp.h index dadc96dea39c..eeec4e53c448 100644 --- a/include/rdma/ib_umem_odp.h +++ b/include/rdma/ib_umem_odp.h @@ -69,6 +69,7 @@ struct ib_umem_odp { int notifiers_seq; int notifiers_count; + int npages; /* Tree tracking */ struct umem_odp_node interval_tree; diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 9b9e17bcc201..0742095355f2 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -59,6 +59,8 @@ #include <linux/mmu_notifier.h> #include <linux/uaccess.h> #include <linux/cgroup_rdma.h> +#include <linux/irqflags.h> +#include <linux/preempt.h> #include <uapi/rdma/ib_user_verbs.h> #include <rdma/restrack.h> #include <uapi/rdma/rdma_user_ioctl.h> @@ -72,6 +74,36 @@ extern struct workqueue_struct *ib_wq; extern struct workqueue_struct *ib_comp_wq; extern struct workqueue_struct *ib_comp_unbound_wq; +__printf(3, 4) __cold +void ibdev_printk(const char *level, const struct ib_device *ibdev, + const char *format, ...); +__printf(2, 3) __cold +void ibdev_emerg(const struct ib_device *ibdev, const char *format, ...); +__printf(2, 3) __cold +void ibdev_alert(const struct ib_device *ibdev, const char *format, ...); +__printf(2, 3) __cold +void ibdev_crit(const struct ib_device *ibdev, const char *format, ...); +__printf(2, 3) __cold +void ibdev_err(const struct ib_device *ibdev, const char *format, ...); +__printf(2, 3) __cold +void ibdev_warn(const struct ib_device *ibdev, const char *format, ...); +__printf(2, 3) __cold +void ibdev_notice(const struct ib_device *ibdev, const char *format, ...); +__printf(2, 3) __cold +void ibdev_info(const struct ib_device *ibdev, const char *format, ...); + +#if defined(CONFIG_DYNAMIC_DEBUG) +#define ibdev_dbg(__dev, format, args...) \ + dynamic_ibdev_dbg(__dev, format, ##args) +#elif defined(DEBUG) +#define ibdev_dbg(__dev, format, args...) \ + ibdev_printk(KERN_DEBUG, __dev, format, ##args) +#else +__printf(2, 3) __cold +static inline +void ibdev_dbg(const struct ib_device *ibdev, const char *format, ...) {} +#endif + union ib_gid { u8 raw[16]; struct { @@ -92,7 +124,7 @@ enum ib_gid_type { #define ROCE_V2_UDP_DPORT 4791 struct ib_gid_attr { - struct net_device *ndev; + struct net_device __rcu *ndev; struct ib_device *device; union ib_gid gid; enum ib_gid_type gid_type; @@ -108,6 +140,7 @@ enum rdma_node_type { RDMA_NODE_RNIC, RDMA_NODE_USNIC, RDMA_NODE_USNIC_UDP, + RDMA_NODE_UNSPECIFIED, }; enum { @@ -119,7 +152,8 @@ enum rdma_transport_type { RDMA_TRANSPORT_IB, RDMA_TRANSPORT_IWARP, RDMA_TRANSPORT_USNIC, - RDMA_TRANSPORT_USNIC_UDP + RDMA_TRANSPORT_USNIC_UDP, + RDMA_TRANSPORT_UNSPECIFIED, }; enum rdma_protocol_type { @@ -2189,8 +2223,6 @@ struct ib_cache { struct ib_event_handler event_handler; }; -struct iw_cm_verbs; - struct ib_port_immutable { int pkey_tbl_len; int gid_tbl_len; @@ -2272,6 +2304,8 @@ struct ib_counters_read_attr { }; struct uverbs_attr_bundle; +struct iw_cm_id; +struct iw_cm_conn_param; #define INIT_RDMA_OBJ_SIZE(ib_struct, drv_struct, member) \ .size_##ib_struct = \ @@ -2281,8 +2315,11 @@ struct uverbs_attr_bundle; !__same_type(((struct drv_struct *)NULL)->member, \ struct ib_struct))) +#define rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, gfp) \ + ((struct ib_type *)kzalloc(ib_dev->ops.size_##ib_type, gfp)) + #define rdma_zalloc_drv_obj(ib_dev, ib_type) \ - ((struct ib_type *)kzalloc(ib_dev->ops.size_##ib_type, GFP_KERNEL)) + rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, GFP_KERNEL) #define DECLARE_RDMA_OBJ_SIZE(ib_struct) size_t size_##ib_struct @@ -2394,23 +2431,21 @@ struct ib_device_ops { void (*dealloc_ucontext)(struct ib_ucontext *context); int (*mmap)(struct ib_ucontext *context, struct vm_area_struct *vma); void (*disassociate_ucontext)(struct ib_ucontext *ibcontext); - int (*alloc_pd)(struct ib_pd *pd, struct ib_ucontext *context, - struct ib_udata *udata); - void (*dealloc_pd)(struct ib_pd *pd); - struct ib_ah *(*create_ah)(struct ib_pd *pd, - struct rdma_ah_attr *ah_attr, u32 flags, - struct ib_udata *udata); + int (*alloc_pd)(struct ib_pd *pd, struct ib_udata *udata); + void (*dealloc_pd)(struct ib_pd *pd, struct ib_udata *udata); + int (*create_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr, + u32 flags, struct ib_udata *udata); int (*modify_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); int (*query_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); - int (*destroy_ah)(struct ib_ah *ah, u32 flags); - struct ib_srq *(*create_srq)(struct ib_pd *pd, - struct ib_srq_init_attr *srq_init_attr, - struct ib_udata *udata); + void (*destroy_ah)(struct ib_ah *ah, u32 flags); + int (*create_srq)(struct ib_srq *srq, + struct ib_srq_init_attr *srq_init_attr, + struct ib_udata *udata); int (*modify_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr, enum ib_srq_attr_mask srq_attr_mask, struct ib_udata *udata); int (*query_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr); - int (*destroy_srq)(struct ib_srq *srq); + void (*destroy_srq)(struct ib_srq *srq, struct ib_udata *udata); struct ib_qp *(*create_qp)(struct ib_pd *pd, struct ib_qp_init_attr *qp_init_attr, struct ib_udata *udata); @@ -2418,13 +2453,12 @@ struct ib_device_ops { int qp_attr_mask, struct ib_udata *udata); int (*query_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr, int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr); - int (*destroy_qp)(struct ib_qp *qp); + int (*destroy_qp)(struct ib_qp *qp, struct ib_udata *udata); struct ib_cq *(*create_cq)(struct ib_device *device, const struct ib_cq_init_attr *attr, - struct ib_ucontext *context, struct ib_udata *udata); int (*modify_cq)(struct ib_cq *cq, u16 cq_count, u16 cq_period); - int (*destroy_cq)(struct ib_cq *cq); + int (*destroy_cq)(struct ib_cq *cq, struct ib_udata *udata); int (*resize_cq)(struct ib_cq *cq, int cqe, struct ib_udata *udata); struct ib_mr *(*get_dma_mr)(struct ib_pd *pd, int mr_access_flags); struct ib_mr *(*reg_user_mr)(struct ib_pd *pd, u64 start, u64 length, @@ -2433,9 +2467,9 @@ struct ib_device_ops { int (*rereg_user_mr)(struct ib_mr *mr, int flags, u64 start, u64 length, u64 virt_addr, int mr_access_flags, struct ib_pd *pd, struct ib_udata *udata); - int (*dereg_mr)(struct ib_mr *mr); + int (*dereg_mr)(struct ib_mr *mr, struct ib_udata *udata); struct ib_mr *(*alloc_mr)(struct ib_pd *pd, enum ib_mr_type mr_type, - u32 max_num_sg); + u32 max_num_sg, struct ib_udata *udata); int (*advise_mr)(struct ib_pd *pd, enum ib_uverbs_advise_mr_advice advice, u32 flags, struct ib_sge *sg_list, u32 num_sge, @@ -2456,9 +2490,8 @@ struct ib_device_ops { int (*attach_mcast)(struct ib_qp *qp, union ib_gid *gid, u16 lid); int (*detach_mcast)(struct ib_qp *qp, union ib_gid *gid, u16 lid); struct ib_xrcd *(*alloc_xrcd)(struct ib_device *device, - struct ib_ucontext *ucontext, struct ib_udata *udata); - int (*dealloc_xrcd)(struct ib_xrcd *xrcd); + int (*dealloc_xrcd)(struct ib_xrcd *xrcd, struct ib_udata *udata); struct ib_flow *(*create_flow)(struct ib_qp *qp, struct ib_flow_attr *flow_attr, int domain, struct ib_udata *udata); @@ -2483,7 +2516,7 @@ struct ib_device_ops { struct ib_wq *(*create_wq)(struct ib_pd *pd, struct ib_wq_init_attr *init_attr, struct ib_udata *udata); - int (*destroy_wq)(struct ib_wq *wq); + int (*destroy_wq)(struct ib_wq *wq, struct ib_udata *udata); int (*modify_wq)(struct ib_wq *wq, struct ib_wq_attr *attr, u32 wq_attr_mask, struct ib_udata *udata); struct ib_rwq_ind_table *(*create_rwq_ind_table)( @@ -2495,7 +2528,7 @@ struct ib_device_ops { struct ib_ucontext *context, struct ib_dm_alloc_attr *attr, struct uverbs_attr_bundle *attrs); - int (*dealloc_dm)(struct ib_dm *dm); + int (*dealloc_dm)(struct ib_dm *dm, struct uverbs_attr_bundle *attrs); struct ib_mr *(*reg_dm_mr)(struct ib_pd *pd, struct ib_dm *dm, struct ib_dm_mr_attr *attr, struct uverbs_attr_bundle *attrs); @@ -2550,12 +2583,37 @@ struct ib_device_ops { */ void (*dealloc_driver)(struct ib_device *dev); + /* iWarp CM callbacks */ + void (*iw_add_ref)(struct ib_qp *qp); + void (*iw_rem_ref)(struct ib_qp *qp); + struct ib_qp *(*iw_get_qp)(struct ib_device *device, int qpn); + int (*iw_connect)(struct iw_cm_id *cm_id, + struct iw_cm_conn_param *conn_param); + int (*iw_accept)(struct iw_cm_id *cm_id, + struct iw_cm_conn_param *conn_param); + int (*iw_reject)(struct iw_cm_id *cm_id, const void *pdata, + u8 pdata_len); + int (*iw_create_listen)(struct iw_cm_id *cm_id, int backlog); + int (*iw_destroy_listen)(struct iw_cm_id *cm_id); + + DECLARE_RDMA_OBJ_SIZE(ib_ah); DECLARE_RDMA_OBJ_SIZE(ib_pd); + DECLARE_RDMA_OBJ_SIZE(ib_srq); DECLARE_RDMA_OBJ_SIZE(ib_ucontext); }; -struct rdma_restrack_root; +struct ib_core_device { + /* device must be the first element in structure until, + * union of ib_core_device and device exists in ib_device. + */ + struct device dev; + possible_net_t rdma_net; + struct kobject *ports_kobj; + struct list_head port_list; + struct ib_device *owner; /* reach back to owner ib_device */ +}; +struct rdma_restrack_root; struct ib_device { /* Do not access @dma_device directly from ULP nor from HW drivers. */ struct device *dma_device; @@ -2578,19 +2636,18 @@ struct ib_device { int num_comp_vectors; - struct iw_cm_verbs *iwcm; - struct module *owner; - struct device dev; + union { + struct device dev; + struct ib_core_device coredev; + }; + /* First group for device attributes, * Second group for driver provided attributes (optional). * It is NULL terminated array. */ const struct attribute_group *groups[3]; - struct kobject *ports_kobj; - struct list_head port_list; - int uverbs_abi_ver; u64 uverbs_cmd_mask; u64 uverbs_ex_cmd_mask; @@ -2626,6 +2683,15 @@ struct ib_device { struct work_struct unregistration_work; const struct rdma_link_ops *link_ops; + + /* Protects compat_devs xarray modifications */ + struct mutex compat_devs_mutex; + /* Maintains compat devices for each net namespace */ + struct xarray compat_devs; + + /* Used by iWarp CM */ + char iw_ifname[IFNAMSIZ]; + u32 iw_driver_flags; }; struct ib_client { @@ -2662,6 +2728,21 @@ struct ib_client { u8 no_kverbs_req:1; }; +/* + * IB block DMA iterator + * + * Iterates the DMA-mapped SGL in contiguous memory blocks aligned + * to a HW supported page size. + */ +struct ib_block_iter { + /* internal states */ + struct scatterlist *__sg; /* sg holding the current aligned block */ + dma_addr_t __dma_addr; /* unaligned DMA address of this block */ + unsigned int __sg_nents; /* number of SG entries */ + unsigned int __sg_advance; /* number of bytes to advance in sg in next step */ + unsigned int __pg_bit; /* alignment of current block */ +}; + struct ib_device *_ib_alloc_device(size_t size); #define ib_alloc_device(drv_struct, member) \ container_of(_ib_alloc_device(sizeof(struct drv_struct) + \ @@ -2682,6 +2763,38 @@ void ib_unregister_device_queued(struct ib_device *ib_dev); int ib_register_client (struct ib_client *client); void ib_unregister_client(struct ib_client *client); +void __rdma_block_iter_start(struct ib_block_iter *biter, + struct scatterlist *sglist, + unsigned int nents, + unsigned long pgsz); +bool __rdma_block_iter_next(struct ib_block_iter *biter); + +/** + * rdma_block_iter_dma_address - get the aligned dma address of the current + * block held by the block iterator. + * @biter: block iterator holding the memory block + */ +static inline dma_addr_t +rdma_block_iter_dma_address(struct ib_block_iter *biter) +{ + return biter->__dma_addr & ~(BIT_ULL(biter->__pg_bit) - 1); +} + +/** + * rdma_for_each_block - iterate over contiguous memory blocks of the sg list + * @sglist: sglist to iterate over + * @biter: block iterator holding the memory block + * @nents: maximum number of sg entries to iterate over + * @pgsz: best HW supported page size to use + * + * Callers may use rdma_block_iter_dma_address() to get each + * blocks aligned DMA address. + */ +#define rdma_for_each_block(sglist, biter, nents, pgsz) \ + for (__rdma_block_iter_start(biter, sglist, nents, \ + pgsz); \ + __rdma_block_iter_next(biter);) + /** * ib_get_client_data - Get IB client context * @device:Device to get context for @@ -2705,9 +2818,6 @@ void ib_set_device_ops(struct ib_device *device, #if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS) int rdma_user_mmap_io(struct ib_ucontext *ucontext, struct vm_area_struct *vma, unsigned long pfn, unsigned long size, pgprot_t prot); -int rdma_user_mmap_page(struct ib_ucontext *ucontext, - struct vm_area_struct *vma, struct page *page, - unsigned long size); #else static inline int rdma_user_mmap_io(struct ib_ucontext *ucontext, struct vm_area_struct *vma, @@ -2716,12 +2826,6 @@ static inline int rdma_user_mmap_io(struct ib_ucontext *ucontext, { return -EINVAL; } -static inline int rdma_user_mmap_page(struct ib_ucontext *ucontext, - struct vm_area_struct *vma, struct page *page, - unsigned long size) -{ - return -EINVAL; -} #endif static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t len) @@ -2978,8 +3082,8 @@ static inline bool rdma_cap_ib_mad(const struct ib_device *device, u8 port_num) */ static inline bool rdma_cap_opa_mad(struct ib_device *device, u8 port_num) { - return (device->port_data[port_num].immutable.core_cap_flags & - RDMA_CORE_CAP_OPA_MAD) == RDMA_CORE_CAP_OPA_MAD; + return device->port_data[port_num].immutable.core_cap_flags & + RDMA_CORE_CAP_OPA_MAD; } /** @@ -3195,6 +3299,30 @@ static inline bool rdma_cap_read_inv(struct ib_device *dev, u32 port_num) return rdma_protocol_iwarp(dev, port_num); } +/** + * rdma_find_pg_bit - Find page bit given address and HW supported page sizes + * + * @addr: address + * @pgsz_bitmap: bitmap of HW supported page sizes + */ +static inline unsigned int rdma_find_pg_bit(unsigned long addr, + unsigned long pgsz_bitmap) +{ + unsigned long align; + unsigned long pgsz; + + align = addr & -addr; + + /* Find page bit such that addr is aligned to the highest supported + * HW page size + */ + pgsz = pgsz_bitmap & ~(-align << 1); + if (!pgsz) + return __ffs(pgsz_bitmap); + + return __fls(pgsz); +} + int ib_set_vf_link_state(struct ib_device *device, int vf, u8 port, int state); int ib_get_vf_config(struct ib_device *device, int vf, u8 port, @@ -3236,9 +3364,27 @@ enum ib_pd_flags { struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags, const char *caller); + #define ib_alloc_pd(device, flags) \ __ib_alloc_pd((device), (flags), KBUILD_MODNAME) -void ib_dealloc_pd(struct ib_pd *pd); + +/** + * ib_dealloc_pd_user - Deallocate kernel/user PD + * @pd: The protection domain + * @udata: Valid user data or NULL for kernel objects + */ +void ib_dealloc_pd_user(struct ib_pd *pd, struct ib_udata *udata); + +/** + * ib_dealloc_pd - Deallocate kernel PD + * @pd: The protection domain + * + * NOTE: for user PD use ib_dealloc_pd_user with valid udata! + */ +static inline void ib_dealloc_pd(struct ib_pd *pd) +{ + ib_dealloc_pd_user(pd, NULL); +} enum rdma_create_ah_flags { /* In a sleepable context */ @@ -3351,11 +3497,24 @@ enum rdma_destroy_ah_flags { }; /** - * rdma_destroy_ah - Destroys an address handle. + * rdma_destroy_ah_user - Destroys an address handle. * @ah: The address handle to destroy. * @flags: Destroy address handle flags (see enum rdma_destroy_ah_flags). + * @udata: Valid user data or NULL for kernel objects */ -int rdma_destroy_ah(struct ib_ah *ah, u32 flags); +int rdma_destroy_ah_user(struct ib_ah *ah, u32 flags, struct ib_udata *udata); + +/** + * rdma_destroy_ah - Destroys an kernel address handle. + * @ah: The address handle to destroy. + * @flags: Destroy address handle flags (see enum rdma_destroy_ah_flags). + * + * NOTE: for user ah use rdma_destroy_ah_user with valid udata! + */ +static inline int rdma_destroy_ah(struct ib_ah *ah, u32 flags) +{ + return rdma_destroy_ah_user(ah, flags, NULL); +} /** * ib_create_srq - Creates a SRQ associated with the specified protection @@ -3399,10 +3558,22 @@ int ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr); /** - * ib_destroy_srq - Destroys the specified SRQ. + * ib_destroy_srq_user - Destroys the specified SRQ. * @srq: The SRQ to destroy. + * @udata: Valid user data or NULL for kernel objects */ -int ib_destroy_srq(struct ib_srq *srq); +int ib_destroy_srq_user(struct ib_srq *srq, struct ib_udata *udata); + +/** + * ib_destroy_srq - Destroys the specified kernel SRQ. + * @srq: The SRQ to destroy. + * + * NOTE: for user srq use ib_destroy_srq_user with valid udata! + */ +static inline int ib_destroy_srq(struct ib_srq *srq) +{ + return ib_destroy_srq_user(srq, NULL); +} /** * ib_post_srq_recv - Posts a list of work requests to the specified SRQ. @@ -3422,15 +3593,34 @@ static inline int ib_post_srq_recv(struct ib_srq *srq, } /** - * ib_create_qp - Creates a QP associated with the specified protection + * ib_create_qp_user - Creates a QP associated with the specified protection * domain. * @pd: The protection domain associated with the QP. * @qp_init_attr: A list of initial attributes required to create the * QP. If QP creation succeeds, then the attributes are updated to * the actual capabilities of the created QP. + * @udata: Valid user data or NULL for kernel objects */ -struct ib_qp *ib_create_qp(struct ib_pd *pd, - struct ib_qp_init_attr *qp_init_attr); +struct ib_qp *ib_create_qp_user(struct ib_pd *pd, + struct ib_qp_init_attr *qp_init_attr, + struct ib_udata *udata); + +/** + * ib_create_qp - Creates a kernel QP associated with the specified protection + * domain. + * @pd: The protection domain associated with the QP. + * @qp_init_attr: A list of initial attributes required to create the + * QP. If QP creation succeeds, then the attributes are updated to + * the actual capabilities of the created QP. + * @udata: Valid user data or NULL for kernel objects + * + * NOTE: for user qp use ib_create_qp_user with valid udata! + */ +static inline struct ib_qp *ib_create_qp(struct ib_pd *pd, + struct ib_qp_init_attr *qp_init_attr) +{ + return ib_create_qp_user(pd, qp_init_attr, NULL); +} /** * ib_modify_qp_with_udata - Modifies the attributes for the specified QP. @@ -3480,8 +3670,20 @@ int ib_query_qp(struct ib_qp *qp, /** * ib_destroy_qp - Destroys the specified QP. * @qp: The QP to destroy. + * @udata: Valid udata or NULL for kernel objects */ -int ib_destroy_qp(struct ib_qp *qp); +int ib_destroy_qp_user(struct ib_qp *qp, struct ib_udata *udata); + +/** + * ib_destroy_qp - Destroys the specified kernel QP. + * @qp: The QP to destroy. + * + * NOTE: for user qp use ib_destroy_qp_user with valid udata! + */ +static inline int ib_destroy_qp(struct ib_qp *qp) +{ + return ib_destroy_qp_user(qp, NULL); +} /** * ib_open_qp - Obtain a reference to an existing sharable QP. @@ -3541,13 +3743,66 @@ static inline int ib_post_recv(struct ib_qp *qp, return qp->device->ops.post_recv(qp, recv_wr, bad_recv_wr ? : &dummy); } -struct ib_cq *__ib_alloc_cq(struct ib_device *dev, void *private, - int nr_cqe, int comp_vector, - enum ib_poll_context poll_ctx, const char *caller); -#define ib_alloc_cq(device, priv, nr_cqe, comp_vect, poll_ctx) \ - __ib_alloc_cq((device), (priv), (nr_cqe), (comp_vect), (poll_ctx), KBUILD_MODNAME) +struct ib_cq *__ib_alloc_cq_user(struct ib_device *dev, void *private, + int nr_cqe, int comp_vector, + enum ib_poll_context poll_ctx, + const char *caller, struct ib_udata *udata); + +/** + * ib_alloc_cq_user: Allocate kernel/user CQ + * @dev: The IB device + * @private: Private data attached to the CQE + * @nr_cqe: Number of CQEs in the CQ + * @comp_vector: Completion vector used for the IRQs + * @poll_ctx: Context used for polling the CQ + * @udata: Valid user data or NULL for kernel objects + */ +static inline struct ib_cq *ib_alloc_cq_user(struct ib_device *dev, + void *private, int nr_cqe, + int comp_vector, + enum ib_poll_context poll_ctx, + struct ib_udata *udata) +{ + return __ib_alloc_cq_user(dev, private, nr_cqe, comp_vector, poll_ctx, + KBUILD_MODNAME, udata); +} + +/** + * ib_alloc_cq: Allocate kernel CQ + * @dev: The IB device + * @private: Private data attached to the CQE + * @nr_cqe: Number of CQEs in the CQ + * @comp_vector: Completion vector used for the IRQs + * @poll_ctx: Context used for polling the CQ + * + * NOTE: for user cq use ib_alloc_cq_user with valid udata! + */ +static inline struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private, + int nr_cqe, int comp_vector, + enum ib_poll_context poll_ctx) +{ + return ib_alloc_cq_user(dev, private, nr_cqe, comp_vector, poll_ctx, + NULL); +} + +/** + * ib_free_cq_user - Free kernel/user CQ + * @cq: The CQ to free + * @udata: Valid user data or NULL for kernel objects + */ +void ib_free_cq_user(struct ib_cq *cq, struct ib_udata *udata); + +/** + * ib_free_cq - Free kernel CQ + * @cq: The CQ to free + * + * NOTE: for user cq use ib_free_cq_user with valid udata! + */ +static inline void ib_free_cq(struct ib_cq *cq) +{ + ib_free_cq_user(cq, NULL); +} -void ib_free_cq(struct ib_cq *cq); int ib_process_cq_direct(struct ib_cq *cq, int budget); /** @@ -3591,10 +3846,22 @@ int ib_resize_cq(struct ib_cq *cq, int cqe); int rdma_set_cq_moderation(struct ib_cq *cq, u16 cq_count, u16 cq_period); /** - * ib_destroy_cq - Destroys the specified CQ. + * ib_destroy_cq_user - Destroys the specified CQ. * @cq: The CQ to destroy. + * @udata: Valid user data or NULL for kernel objects */ -int ib_destroy_cq(struct ib_cq *cq); +int ib_destroy_cq_user(struct ib_cq *cq, struct ib_udata *udata); + +/** + * ib_destroy_cq - Destroys the specified kernel CQ. + * @cq: The CQ to destroy. |