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-rw-r--r--include/rdma/ib_verbs.h584
1 files changed, 290 insertions, 294 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 9c0c2132a2d6..a3ceed3a040a 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -41,14 +41,11 @@
#include <linux/types.h>
#include <linux/device.h>
-#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/rwsem.h>
-#include <linux/scatterlist.h>
#include <linux/workqueue.h>
-#include <linux/socket.h>
#include <linux/irq_poll.h>
#include <uapi/linux/if_ether.h>
#include <net/ipv6.h>
@@ -56,7 +53,7 @@
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/netdevice.h>
-
+#include <linux/refcount.h>
#include <linux/if_link.h>
#include <linux/atomic.h>
#include <linux/mmu_notifier.h>
@@ -437,6 +434,7 @@ enum ib_port_state {
enum ib_port_width {
IB_WIDTH_1X = 1,
+ IB_WIDTH_2X = 16,
IB_WIDTH_4X = 2,
IB_WIDTH_8X = 4,
IB_WIDTH_12X = 8
@@ -446,6 +444,7 @@ static inline int ib_width_enum_to_int(enum ib_port_width width)
{
switch (width) {
case IB_WIDTH_1X: return 1;
+ case IB_WIDTH_2X: return 2;
case IB_WIDTH_4X: return 4;
case IB_WIDTH_8X: return 8;
case IB_WIDTH_12X: return 12;
@@ -595,6 +594,7 @@ struct ib_port_attr {
u8 active_width;
u8 active_speed;
u8 phys_state;
+ u16 port_cap_flags2;
};
enum ib_device_modify_flags {
@@ -732,7 +732,11 @@ enum ib_rate {
IB_RATE_25_GBPS = 15,
IB_RATE_100_GBPS = 16,
IB_RATE_200_GBPS = 17,
- IB_RATE_300_GBPS = 18
+ IB_RATE_300_GBPS = 18,
+ IB_RATE_28_GBPS = 19,
+ IB_RATE_50_GBPS = 20,
+ IB_RATE_400_GBPS = 21,
+ IB_RATE_600_GBPS = 22,
};
/**
@@ -1508,6 +1512,10 @@ struct ib_ucontext {
#endif
struct ib_rdmacg_object cg_obj;
+ /*
+ * Implementation details of the RDMA core, don't use in drivers:
+ */
+ struct rdma_restrack_entry res;
};
struct ib_uobject {
@@ -2256,82 +2264,86 @@ struct ib_counters_read_attr {
struct uverbs_attr_bundle;
-struct ib_device {
- /* Do not access @dma_device directly from ULP nor from HW drivers. */
- struct device *dma_device;
-
- char name[IB_DEVICE_NAME_MAX];
-
- struct list_head event_handler_list;
- spinlock_t event_handler_lock;
-
- rwlock_t client_data_lock;
- struct list_head core_list;
- /* Access to the client_data_list is protected by the client_data_lock
- * rwlock and the lists_rwsem read-write semaphore
- */
- struct list_head client_data_list;
-
- struct ib_cache cache;
- /**
- * port_immutable is indexed by port number
- */
- struct ib_port_immutable *port_immutable;
-
- int num_comp_vectors;
-
- struct ib_port_pkey_list *port_pkey_list;
-
- struct iw_cm_verbs *iwcm;
-
+/**
+ * struct ib_device_ops - InfiniBand device operations
+ * This structure defines all the InfiniBand device operations, providers will
+ * need to define the supported operations, otherwise they will be set to null.
+ */
+struct ib_device_ops {
+ int (*post_send)(struct ib_qp *qp, const struct ib_send_wr *send_wr,
+ const struct ib_send_wr **bad_send_wr);
+ int (*post_recv)(struct ib_qp *qp, const struct ib_recv_wr *recv_wr,
+ const struct ib_recv_wr **bad_recv_wr);
+ void (*drain_rq)(struct ib_qp *qp);
+ void (*drain_sq)(struct ib_qp *qp);
+ int (*poll_cq)(struct ib_cq *cq, int num_entries, struct ib_wc *wc);
+ int (*peek_cq)(struct ib_cq *cq, int wc_cnt);
+ int (*req_notify_cq)(struct ib_cq *cq, enum ib_cq_notify_flags flags);
+ int (*req_ncomp_notif)(struct ib_cq *cq, int wc_cnt);
+ int (*post_srq_recv)(struct ib_srq *srq,
+ const struct ib_recv_wr *recv_wr,
+ const struct ib_recv_wr **bad_recv_wr);
+ int (*process_mad)(struct ib_device *device, int process_mad_flags,
+ u8 port_num, const struct ib_wc *in_wc,
+ const struct ib_grh *in_grh,
+ const struct ib_mad_hdr *in_mad, size_t in_mad_size,
+ struct ib_mad_hdr *out_mad, size_t *out_mad_size,
+ u16 *out_mad_pkey_index);
+ int (*query_device)(struct ib_device *device,
+ struct ib_device_attr *device_attr,
+ struct ib_udata *udata);
+ int (*modify_device)(struct ib_device *device, int device_modify_mask,
+ struct ib_device_modify *device_modify);
+ void (*get_dev_fw_str)(struct ib_device *device, char *str);
+ const struct cpumask *(*get_vector_affinity)(struct ib_device *ibdev,
+ int comp_vector);
+ int (*query_port)(struct ib_device *device, u8 port_num,
+ struct ib_port_attr *port_attr);
+ int (*modify_port)(struct ib_device *device, u8 port_num,
+ int port_modify_mask,
+ struct ib_port_modify *port_modify);
/**
- * alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the
- * driver initialized data. The struct is kfree()'ed by the sysfs
- * core when the device is removed. A lifespan of -1 in the return
- * struct tells the core to set a default lifespan.
+ * The following mandatory functions are used only at device
+ * registration. Keep functions such as these at the end of this
+ * structure to avoid cache line misses when accessing struct ib_device
+ * in fast paths.
*/
- struct rdma_hw_stats *(*alloc_hw_stats)(struct ib_device *device,
- u8 port_num);
+ int (*get_port_immutable)(struct ib_device *device, u8 port_num,
+ struct ib_port_immutable *immutable);
+ enum rdma_link_layer (*get_link_layer)(struct ib_device *device,
+ u8 port_num);
/**
- * get_hw_stats - Fill in the counter value(s) in the stats struct.
- * @index - The index in the value array we wish to have updated, or
- * num_counters if we want all stats updated
- * Return codes -
- * < 0 - Error, no counters updated
- * index - Updated the single counter pointed to by index
- * num_counters - Updated all counters (will reset the timestamp
- * and prevent further calls for lifespan milliseconds)
- * Drivers are allowed to update all counters in leiu of just the
- * one given in index at their option
- */
- int (*get_hw_stats)(struct ib_device *device,
- struct rdma_hw_stats *stats,
- u8 port, int index);
- int (*query_device)(struct ib_device *device,
- struct ib_device_attr *device_attr,
- struct ib_udata *udata);
- int (*query_port)(struct ib_device *device,
- u8 port_num,
- struct ib_port_attr *port_attr);
- enum rdma_link_layer (*get_link_layer)(struct ib_device *device,
- u8 port_num);
- /* When calling get_netdev, the HW vendor's driver should return the
+ * When calling get_netdev, the HW vendor's driver should return the
* net device of device @device at port @port_num or NULL if such
* a net device doesn't exist. The vendor driver should call dev_hold
* on this net device. The HW vendor's device driver must guarantee
* that this function returns NULL before the net device has finished
* NETDEV_UNREGISTER state.
*/
- struct net_device *(*get_netdev)(struct ib_device *device,
- u8 port_num);
- /* query_gid should be return GID value for @device, when @port_num
+ struct net_device *(*get_netdev)(struct ib_device *device, u8 port_num);
+ /**
+ * rdma netdev operation
+ *
+ * Driver implementing alloc_rdma_netdev or rdma_netdev_get_params
+ * must return -EOPNOTSUPP if it doesn't support the specified type.
+ */
+ struct net_device *(*alloc_rdma_netdev)(
+ struct ib_device *device, u8 port_num, enum rdma_netdev_t type,
+ const char *name, unsigned char name_assign_type,
+ void (*setup)(struct net_device *));
+
+ int (*rdma_netdev_get_params)(struct ib_device *device, u8 port_num,
+ enum rdma_netdev_t type,
+ struct rdma_netdev_alloc_params *params);
+ /**
+ * query_gid should be return GID value for @device, when @port_num
* link layer is either IB or iWarp. It is no-op if @port_num port
* is RoCE link layer.
*/
- int (*query_gid)(struct ib_device *device,
- u8 port_num, int index,
- union ib_gid *gid);
- /* When calling add_gid, the HW vendor's driver should add the gid
+ int (*query_gid)(struct ib_device *device, u8 port_num, int index,
+ union ib_gid *gid);
+ /**
+ * When calling add_gid, the HW vendor's driver should add the gid
* of device of port at gid index available at @attr. Meta-info of
* that gid (for example, the network device related to this gid) is
* available at @attr. @context allows the HW vendor driver to store
@@ -2343,213 +2355,186 @@ struct ib_device {
* concurrently for different ports. This function is only called when
* roce_gid_table is used.
*/
- int (*add_gid)(const struct ib_gid_attr *attr,
- void **context);
- /* When calling del_gid, the HW vendor's driver should delete the
+ int (*add_gid)(const struct ib_gid_attr *attr, void **context);
+ /**
+ * When calling del_gid, the HW vendor's driver should delete the
* gid of device @device at gid index gid_index of port port_num
* available in @attr.
* Upon the deletion of a GID entry, the HW vendor must free any
* allocated memory. The caller will clear @context afterwards.
* This function is only called when roce_gid_table is used.
*/
- int (*del_gid)(const struct ib_gid_attr *attr,
- void **context);
- int (*query_pkey)(struct ib_device *device,
- u8 port_num, u16 index, u16 *pkey);
- int (*modify_device)(struct ib_device *device,
- int device_modify_mask,
- struct ib_device_modify *device_modify);
- int (*modify_port)(struct ib_device *device,
- u8 port_num, int port_modify_mask,
- struct ib_port_modify *port_modify);
- struct ib_ucontext * (*alloc_ucontext)(struct ib_device *device,
- struct ib_udata *udata);
- int (*dealloc_ucontext)(struct ib_ucontext *context);
- int (*mmap)(struct ib_ucontext *context,
- struct vm_area_struct *vma);
- struct ib_pd * (*alloc_pd)(struct ib_device *device,
- struct ib_ucontext *context,
- struct ib_udata *udata);
- int (*dealloc_pd)(struct ib_pd *pd);
- struct ib_ah * (*create_ah)(struct ib_pd *pd,
- struct rdma_ah_attr *ah_attr,
- 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);
- struct ib_srq * (*create_srq)(struct ib_pd *pd,
- 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);
- int (*post_srq_recv)(struct ib_srq *srq,
- const struct ib_recv_wr *recv_wr,
- const struct ib_recv_wr **bad_recv_wr);
- struct ib_qp * (*create_qp)(struct ib_pd *pd,
- struct ib_qp_init_attr *qp_init_attr,
- struct ib_udata *udata);
- int (*modify_qp)(struct ib_qp *qp,
- struct ib_qp_attr *qp_attr,
- 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 (*post_send)(struct ib_qp *qp,
- const struct ib_send_wr *send_wr,
- const struct ib_send_wr **bad_send_wr);
- int (*post_recv)(struct ib_qp *qp,
- const struct ib_recv_wr *recv_wr,
- const struct ib_recv_wr **bad_recv_wr);
- 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 (*resize_cq)(struct ib_cq *cq, int cqe,
- struct ib_udata *udata);
- int (*poll_cq)(struct ib_cq *cq, int num_entries,
- struct ib_wc *wc);
- int (*peek_cq)(struct ib_cq *cq, int wc_cnt);
- int (*req_notify_cq)(struct ib_cq *cq,
- enum ib_cq_notify_flags flags);
- int (*req_ncomp_notif)(struct ib_cq *cq,
- int wc_cnt);
- 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,
- u64 virt_addr,
- int mr_access_flags,
- struct ib_udata *udata);
- 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);
- struct ib_mr * (*alloc_mr)(struct ib_pd *pd,
- enum ib_mr_type mr_type,
- u32 max_num_sg);
- int (*map_mr_sg)(struct ib_mr *mr,
- struct scatterlist *sg,
- int sg_nents,
- unsigned int *sg_offset);
- struct ib_mw * (*alloc_mw)(struct ib_pd *pd,
- enum ib_mw_type type,
- struct ib_udata *udata);
- int (*dealloc_mw)(struct ib_mw *mw);
- struct ib_fmr * (*alloc_fmr)(struct ib_pd *pd,
- int mr_access_flags,
- struct ib_fmr_attr *fmr_attr);
- int (*map_phys_fmr)(struct ib_fmr *fmr,
- u64 *page_list, int list_len,
- u64 iova);
- int (*unmap_fmr)(struct list_head *fmr_list);
- int (*dealloc_fmr)(struct ib_fmr *fmr);
- 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);
- int (*process_mad)(struct ib_device *device,
- int process_mad_flags,
- u8 port_num,
- const struct ib_wc *in_wc,
- const struct ib_grh *in_grh,
- const struct ib_mad_hdr *in_mad,
- size_t in_mad_size,
- struct ib_mad_hdr *out_mad,
- size_t *out_mad_size,
- u16 *out_mad_pkey_index);
- struct ib_xrcd * (*alloc_xrcd)(struct ib_device *device,
- struct ib_ucontext *ucontext,
- struct ib_udata *udata);
- int (*dealloc_xrcd)(struct ib_xrcd *xrcd);
- struct ib_flow * (*create_flow)(struct ib_qp *qp,
- struct ib_flow_attr
- *flow_attr,
- int domain,
- struct ib_udata *udata);
- int (*destroy_flow)(struct ib_flow *flow_id);
- int (*check_mr_status)(struct ib_mr *mr, u32 check_mask,
- struct ib_mr_status *mr_status);
- void (*disassociate_ucontext)(struct ib_ucontext *ibcontext);
- void (*drain_rq)(struct ib_qp *qp);
- void (*drain_sq)(struct ib_qp *qp);
- int (*set_vf_link_state)(struct ib_device *device, int vf, u8 port,
- int state);
- int (*get_vf_config)(struct ib_device *device, int vf, u8 port,
- struct ifla_vf_info *ivf);
- int (*get_vf_stats)(struct ib_device *device, int vf, u8 port,
- struct ifla_vf_stats *stats);
- int (*set_vf_guid)(struct ib_device *device, int vf, u8 port, u64 guid,
- int type);
- 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 (*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)(struct ib_device *device,
- struct ib_rwq_ind_table_init_attr *init_attr,
- struct ib_udata *udata);
- int (*destroy_rwq_ind_table)(struct ib_rwq_ind_table *wq_ind_table);
- struct ib_flow_action * (*create_flow_action_esp)(struct ib_device *device,
- const struct ib_flow_action_attrs_esp *attr,
- struct uverbs_attr_bundle *attrs);
- int (*destroy_flow_action)(struct ib_flow_action *action);
- int (*modify_flow_action_esp)(struct ib_flow_action *action,
- const struct ib_flow_action_attrs_esp *attr,
- struct uverbs_attr_bundle *attrs);
- struct ib_dm * (*alloc_dm)(struct ib_device *device,
- struct ib_ucontext *context,
- struct ib_dm_alloc_attr *attr,
- struct uverbs_attr_bundle *attrs);
- int (*dealloc_dm)(struct ib_dm *dm);
- 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);
- struct ib_counters * (*create_counters)(struct ib_device *device,
- struct uverbs_attr_bundle *attrs);
- int (*destroy_counters)(struct ib_counters *counters);
- int (*read_counters)(struct ib_counters *counters,
- struct ib_counters_read_attr *counters_read_attr,
- struct uverbs_attr_bundle *attrs);
+ int (*del_gid)(const struct ib_gid_attr *attr, void **context);
+ int (*query_pkey)(struct ib_device *device, u8 port_num, u16 index,
+ u16 *pkey);
+ struct ib_ucontext *(*alloc_ucontext)(struct ib_device *device,
+ struct ib_udata *udata);
+ int (*dealloc_ucontext)(struct ib_ucontext *context);
+ int (*mmap)(struct ib_ucontext *context, struct vm_area_struct *vma);
+ void (*disassociate_ucontext)(struct ib_ucontext *ibcontext);
+ struct ib_pd *(*alloc_pd)(struct ib_device *device,
+ struct ib_ucontext *context,
+ struct ib_udata *udata);
+ int (*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 (*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);
+ 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);
+ struct ib_qp *(*create_qp)(struct ib_pd *pd,
+ struct ib_qp_init_attr *qp_init_attr,
+ struct ib_udata *udata);
+ int (*modify_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
+ 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);
+ 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 (*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,
+ u64 virt_addr, int mr_access_flags,
+ struct ib_udata *udata);
+ 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);
+ struct ib_mr *(*alloc_mr)(struct ib_pd *pd, enum ib_mr_type mr_type,
+ u32 max_num_sg);
+ int (*advise_mr)(struct ib_pd *pd,
+ enum ib_uverbs_advise_mr_advice advice, u32 flags,
+ struct ib_sge *sg_list, u32 num_sge,
+ struct uverbs_attr_bundle *attrs);
+ int (*map_mr_sg)(struct ib_mr *mr, struct scatterlist *sg, int sg_nents,
+ unsigned int *sg_offset);
+ int (*check_mr_status)(struct ib_mr *mr, u32 check_mask,
+ struct ib_mr_status *mr_status);
+ struct ib_mw *(*alloc_mw)(struct ib_pd *pd, enum ib_mw_type type,
+ struct ib_udata *udata);
+ int (*dealloc_mw)(struct ib_mw *mw);
+ struct ib_fmr *(*alloc_fmr)(struct ib_pd *pd, int mr_access_flags,
+ struct ib_fmr_attr *fmr_attr);
+ int (*map_phys_fmr)(struct ib_fmr *fmr, u64 *page_list, int list_len,
+ u64 iova);
+ int (*unmap_fmr)(struct list_head *fmr_list);
+ int (*dealloc_fmr)(struct ib_fmr *fmr);
+ 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);
+ struct ib_flow *(*create_flow)(struct ib_qp *qp,
+ struct ib_flow_attr *flow_attr,
+ int domain, struct ib_udata *udata);
+ int (*destroy_flow)(struct ib_flow *flow_id);
+ struct ib_flow_action *(*create_flow_action_esp)(
+ struct ib_device *device,
+ const struct ib_flow_action_attrs_esp *attr,
+ struct uverbs_attr_bundle *attrs);
+ int (*destroy_flow_action)(struct ib_flow_action *action);
+ int (*modify_flow_action_esp)(
+ struct ib_flow_action *action,
+ const struct ib_flow_action_attrs_esp *attr,
+ struct uverbs_attr_bundle *attrs);
+ int (*set_vf_link_state)(struct ib_device *device, int vf, u8 port,
+ int state);
+ int (*get_vf_config)(struct ib_device *device, int vf, u8 port,
+ struct ifla_vf_info *ivf);
+ int (*get_vf_stats)(struct ib_device *device, int vf, u8 port,
+ struct ifla_vf_stats *stats);
+ int (*set_vf_guid)(struct ib_device *device, int vf, u8 port, u64 guid,
+ int type);
+ 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 (*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)(
+ struct ib_device *device,
+ struct ib_rwq_ind_table_init_attr *init_attr,
+ struct ib_udata *udata);
+ int (*destroy_rwq_ind_table)(struct ib_rwq_ind_table *wq_ind_table);
+ struct ib_dm *(*alloc_dm)(struct ib_device *device,
+ struct ib_ucontext *context,
+ struct ib_dm_alloc_attr *attr,
+ struct uverbs_attr_bundle *attrs);
+ int (*dealloc_dm)(struct ib_dm *dm);
+ 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);
+ struct ib_counters *(*create_counters)(
+ struct ib_device *device, struct uverbs_attr_bundle *attrs);
+ int (*destroy_counters)(struct ib_counters *counters);
+ int (*read_counters)(struct ib_counters *counters,
+ struct ib_counters_read_attr *counters_read_attr,
+ struct uverbs_attr_bundle *attrs);
+ /**
+ * alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the
+ * driver initialized data. The struct is kfree()'ed by the sysfs
+ * core when the device is removed. A lifespan of -1 in the return
+ * struct tells the core to set a default lifespan.
+ */
+ struct rdma_hw_stats *(*alloc_hw_stats)(struct ib_device *device,
+ u8 port_num);
+ /**
+ * get_hw_stats - Fill in the counter value(s) in the stats struct.
+ * @index - The index in the value array we wish to have updated, or
+ * num_counters if we want all stats updated
+ * Return codes -
+ * < 0 - Error, no counters updated
+ * index - Updated the single counter pointed to by index
+ * num_counters - Updated all counters (will reset the timestamp
+ * and prevent further calls for lifespan milliseconds)
+ * Drivers are allowed to update all counters in leiu of just the
+ * one given in index at their option
+ */
+ int (*get_hw_stats)(struct ib_device *device,
+ struct rdma_hw_stats *stats, u8 port, int index);
+};
+
+struct ib_device {
+ /* Do not access @dma_device directly from ULP nor from HW drivers. */
+ struct device *dma_device;
+ struct ib_device_ops ops;
+ char name[IB_DEVICE_NAME_MAX];
+
+ struct list_head event_handler_list;
+ spinlock_t event_handler_lock;
+
+ rwlock_t client_data_lock;
+ struct list_head core_list;
+ /* Access to the client_data_list is protected by the client_data_lock
+ * rwlock and the lists_rwsem read-write semaphore
+ */
+ struct list_head client_data_list;
+ struct ib_cache cache;
/**
- * rdma netdev operation
- *
- * Driver implementing alloc_rdma_netdev or rdma_netdev_get_params
- * must return -EOPNOTSUPP if it doesn't support the specified type.
+ * port_immutable is indexed by port number
*/
- struct net_device *(*alloc_rdma_netdev)(
- struct ib_device *device,
- u8 port_num,
- enum rdma_netdev_t type,
- const char *name,
- unsigned char name_assign_type,
- void (*setup)(struct net_device *));
+ struct ib_port_immutable *port_immutable;
- int (*rdma_netdev_get_params)(struct ib_device *device, u8 port_num,
- enum rdma_netdev_t type,
- struct rdma_netdev_alloc_params *params);
+ int num_comp_vectors;
+
+ struct ib_port_pkey_list *port_pkey_list;
+
+ struct iw_cm_verbs *iwcm;
struct module *owner;
struct device dev;
@@ -2592,19 +2577,14 @@ struct ib_device {
*/
struct rdma_restrack_root res;
- /**
- * The following mandatory functions are used only at device
- * registration. Keep functions such as these at the end of this
- * structure to avoid cache line misses when accessing struct ib_device
- * in fast paths.
- */
- int (*get_port_immutable)(struct ib_device *, u8, struct ib_port_immutable *);
- void (*get_dev_fw_str)(struct ib_device *, char *str);
- const struct cpumask *(*get_vector_affinity)(struct ib_device *ibdev,
- int comp_vector);
-
- const struct uverbs_object_tree_def *const *driver_specs;
+ const struct uapi_definition *driver_def;
enum rdma_driver_id driver_id;
+ /*
+ * Provides synchronization between device unregistration and netlink
+ * commands on a device. To be used only by core.
+ */
+ refcount_t refcount;
+ struct completion unreg_completion;
};
struct ib_client {
@@ -2653,6 +2633,8 @@ void ib_unregister_client(struct ib_client *client);
void *ib_get_client_data(struct ib_device *device, struct ib_client *client);
void ib_set_client_data(struct ib_device *device, struct ib_client *client,
void *data);
+void ib_set_device_ops(struct ib_device *device,
+ const struct ib_device_ops *ops);
#if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)
int rdma_user_mmap_io(struct ib_ucontext *ucontext, struct vm_area_struct *vma,
@@ -3109,7 +3091,7 @@ static inline bool rdma_cap_roce_gid_table(const struct ib_device *device,
u8 port_num)
{
return rdma_protocol_roce(device, port_num) &&
- device->add_gid && device->del_gid;
+ device->ops.add_gid && device->ops.del_gid;
}
/*
@@ -3169,15 +3151,22 @@ struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags,
__ib_alloc_pd((device), (flags), KBUILD_MODNAME)
void ib_dealloc_pd(struct ib_pd *pd);
+enum rdma_create_ah_flags {
+ /* In a sleepable context */
+ RDMA_CREATE_AH_SLEEPABLE = BIT(0),
+};
+
/**
* rdma_create_ah - Creates an address handle for the given address vector.
* @pd: The protection domain associated with the address handle.
* @ah_attr: The attributes of the address vector.
+ * @flags: Create address handle flags (see enum rdma_create_ah_flags).
*
* The address handle is used to reference a local or global destination
* in all UD QP post sends.
*/
-struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr);
+struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
+ u32 flags);
/**
* rdma_create_user_ah - Creates an address handle for the given address vector.
@@ -3267,11 +3256,17 @@ int rdma_modify_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
*/
int rdma_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
+enum rdma_destroy_ah_flags {
+ /* In a sleepable context */
+ RDMA_DESTROY_AH_SLEEPABLE = BIT(0),
+};
+
/**
* rdma_destroy_ah - Destroys an address handle.
* @ah: The address handle to destroy.
+ * @flags: Destroy address handle flags (see enum rdma_destroy_ah_flags).
*/
-int rdma_destroy_ah(struct ib_ah *ah);
+int rdma_destroy_ah(struct ib_ah *ah, u32 flags);
/**
* ib_create_srq - Creates a SRQ associated with the specified protection
@@ -3333,7 +3328,8 @@ static inline int ib_post_srq_recv(struct ib_srq *srq,
{
const struct ib_recv_wr *dummy;
- return srq->device->post_srq_recv(srq, recv_wr, bad_recv_wr ? : &dummy);
+ return srq->device->ops.post_srq_recv(srq, recv_wr,
+ bad_recv_wr ? : &dummy);
}
/**
@@ -3436,7 +3432,7 @@ static inline int ib_post_send(struct ib_qp *qp,
{
const struct ib_send_wr *dummy;
- return qp->device->post_send(qp, send_wr, bad_send_wr ? : &dummy);
+ return qp->device->ops.post_send(qp, send_wr, bad_send_wr ? : &dummy);
}
/**
@@ -3453,7 +3449,7 @@ static inline int ib_post_recv(struct ib_qp *qp,
{
const struct ib_recv_wr *dummy;
- return qp->device->post_recv(qp, recv_wr, bad_recv_wr ? : &dummy);
+ 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,
@@ -3526,7 +3522,7 @@ int ib_destroy_cq(struct ib_cq *cq);
static inline int ib_poll_cq(struct ib_cq *cq, int num_entries,
struct ib_wc *wc)
{
- return cq->device->poll_cq(cq, num_entries, wc);
+ return cq->device->ops.poll_cq(cq, num_entries, wc);
}
/**
@@ -3559,7 +3555,7 @@ static inline int ib_poll_cq(struct ib_cq *cq, int num_entries,
static inline int ib_req_notify_cq(struct ib_cq *cq,
enum ib_cq_notify_flags flags)
{
- return cq->device->req_notify_cq(cq, flags);
+ return cq->device->ops.req_notify_cq(cq, flags);
}
/**
@@ -3571,8 +3567,8 @@ static inline int ib_req_notify_cq(struct ib_cq *cq,
*/
static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt)
{
- return cq->device->req_ncomp_notif ?
- cq->device->req_ncomp_notif(cq, wc_cnt) :
+ return cq->device->ops.req_ncomp_notif ?
+ cq->device->ops.req_ncomp_notif(cq, wc_cnt) :
-ENOSYS;
}
@@ -3836,7 +3832,7 @@ static inline int ib_map_phys_fmr(struct ib_fmr *fmr,
u64 *page_list, int list_len,
u64 iova)
{
- return fmr->device->map_phys_fmr(fmr, page_list, list_len, iova);
+ return fmr->device->ops.map_phys_fmr(fmr, page_list, list_len, iova);
}
/**
@@ -4189,10 +4185,10 @@ static inline const struct cpumask *
ib_get_vector_affinity(struct ib_device *device, int comp_vector)
{
if (comp_vector < 0 || comp_vector >= device->num_comp_vectors ||
- !device->get_vector_affinity)
+ !device->ops.get_vector_affinity)
return NULL;
- return device->get_vector_affinity(device, comp_vector);
+ return device->ops.get_vector_affinity(device, comp_vector);
}
@@ -4204,10 +4200,10 @@ ib_get_vector_affinity(struct ib_device *device, int comp_vector)
*/
void rdma_roce_rescan_device(struct ib_device *ibdev);
-struct ib_ucontext *ib_uverbs_get_ucontext(struct ib_uverbs_file *ufile);
+struct ib_ucontext *ib_uverbs_get_ucontext_file(struct ib_uverbs_file *ufile);
+
-int uverbs_destroy_def_handler(struct ib_uverbs_file *file,
- struct uverbs_attr_bundle *attrs);
+int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs);
struct net_device *rdma_alloc_netdev(struct ib_device *device, u8 port_num,
enum rdma_netdev_t type, const char *name,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.