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-rw-r--r--include/rdma/ib_verbs.h298
1 files changed, 196 insertions, 102 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index bbc5cfb57cd2..033e7044f29c 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -305,7 +305,7 @@ enum ib_device_cap_flags {
IB_DEVICE_VIRTUAL_FUNCTION = (1ULL << 33),
/* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */
IB_DEVICE_RAW_SCATTER_FCS = (1ULL << 34),
- IB_DEVICE_RDMA_NETDEV_OPA_VNIC = (1ULL << 35),
+ IB_DEVICE_RDMA_NETDEV_OPA = (1ULL << 35),
/* The device supports padding incoming writes to cacheline. */
IB_DEVICE_PCI_WRITE_END_PADDING = (1ULL << 36),
IB_DEVICE_ALLOW_USER_UNREG = (1ULL << 37),
@@ -430,8 +430,6 @@ struct ib_device_attr {
int max_mcast_qp_attach;
int max_total_mcast_qp_attach;
int max_ah;
- int max_fmr;
- int max_map_per_fmr;
int max_srq;
int max_srq_wr;
int max_srq_sge;
@@ -462,6 +460,11 @@ enum ib_mtu {
IB_MTU_4096 = 5
};
+enum opa_mtu {
+ OPA_MTU_8192 = 6,
+ OPA_MTU_10240 = 7
+};
+
static inline int ib_mtu_enum_to_int(enum ib_mtu mtu)
{
switch (mtu) {
@@ -488,6 +491,28 @@ static inline enum ib_mtu ib_mtu_int_to_enum(int mtu)
return IB_MTU_256;
}
+static inline int opa_mtu_enum_to_int(enum opa_mtu mtu)
+{
+ switch (mtu) {
+ case OPA_MTU_8192:
+ return 8192;
+ case OPA_MTU_10240:
+ return 10240;
+ default:
+ return(ib_mtu_enum_to_int((enum ib_mtu)mtu));
+ }
+}
+
+static inline enum opa_mtu opa_mtu_int_to_enum(int mtu)
+{
+ if (mtu >= 10240)
+ return OPA_MTU_10240;
+ else if (mtu >= 8192)
+ return OPA_MTU_8192;
+ else
+ return ((enum opa_mtu)ib_mtu_int_to_enum(mtu));
+}
+
enum ib_port_state {
IB_PORT_NOP = 0,
IB_PORT_DOWN = 1,
@@ -651,6 +676,7 @@ struct ib_port_attr {
enum ib_port_state state;
enum ib_mtu max_mtu;
enum ib_mtu active_mtu;
+ u32 phys_mtu;
int gid_tbl_len;
unsigned int ip_gids:1;
/* This is the value from PortInfo CapabilityMask, defined by IBA */
@@ -880,6 +906,12 @@ struct ib_mr_status {
*/
__attribute_const__ enum ib_rate mult_to_ib_rate(int mult);
+struct rdma_ah_init_attr {
+ struct rdma_ah_attr *ah_attr;
+ u32 flags;
+ struct net_device *xmit_slave;
+};
+
enum rdma_ah_attr_type {
RDMA_AH_ATTR_TYPE_UNDEFINED,
RDMA_AH_ATTR_TYPE_IB,
@@ -1006,9 +1038,9 @@ enum ib_cq_notify_flags {
};
enum ib_srq_type {
- IB_SRQT_BASIC,
- IB_SRQT_XRC,
- IB_SRQT_TM,
+ IB_SRQT_BASIC = IB_UVERBS_SRQT_BASIC,
+ IB_SRQT_XRC = IB_UVERBS_SRQT_XRC,
+ IB_SRQT_TM = IB_UVERBS_SRQT_TM,
};
static inline bool ib_srq_has_cq(enum ib_srq_type srq_type)
@@ -1077,16 +1109,16 @@ enum ib_qp_type {
IB_QPT_SMI,
IB_QPT_GSI,
- IB_QPT_RC,
- IB_QPT_UC,
- IB_QPT_UD,
+ IB_QPT_RC = IB_UVERBS_QPT_RC,
+ IB_QPT_UC = IB_UVERBS_QPT_UC,
+ IB_QPT_UD = IB_UVERBS_QPT_UD,
IB_QPT_RAW_IPV6,
IB_QPT_RAW_ETHERTYPE,
- IB_QPT_RAW_PACKET = 8,
- IB_QPT_XRC_INI = 9,
- IB_QPT_XRC_TGT,
+ IB_QPT_RAW_PACKET = IB_UVERBS_QPT_RAW_PACKET,
+ IB_QPT_XRC_INI = IB_UVERBS_QPT_XRC_INI,
+ IB_QPT_XRC_TGT = IB_UVERBS_QPT_XRC_TGT,
IB_QPT_MAX,
- IB_QPT_DRIVER = 0xFF,
+ IB_QPT_DRIVER = IB_UVERBS_QPT_DRIVER,
/* Reserve a range for qp types internal to the low level driver.
* These qp types will not be visible at the IB core layer, so the
* IB_QPT_MAX usages should not be affected in the core layer
@@ -1105,17 +1137,21 @@ enum ib_qp_type {
enum ib_qp_create_flags {
IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0,
- IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1,
+ IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK =
+ IB_UVERBS_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
IB_QP_CREATE_CROSS_CHANNEL = 1 << 2,
IB_QP_CREATE_MANAGED_SEND = 1 << 3,
IB_QP_CREATE_MANAGED_RECV = 1 << 4,
IB_QP_CREATE_NETIF_QP = 1 << 5,
IB_QP_CREATE_INTEGRITY_EN = 1 << 6,
- /* FREE = 1 << 7, */
- IB_QP_CREATE_SCATTER_FCS = 1 << 8,
- IB_QP_CREATE_CVLAN_STRIPPING = 1 << 9,
+ IB_QP_CREATE_NETDEV_USE = 1 << 7,
+ IB_QP_CREATE_SCATTER_FCS =
+ IB_UVERBS_QP_CREATE_SCATTER_FCS,
+ IB_QP_CREATE_CVLAN_STRIPPING =
+ IB_UVERBS_QP_CREATE_CVLAN_STRIPPING,
IB_QP_CREATE_SOURCE_QPN = 1 << 10,
- IB_QP_CREATE_PCI_WRITE_END_PADDING = 1 << 11,
+ IB_QP_CREATE_PCI_WRITE_END_PADDING =
+ IB_UVERBS_QP_CREATE_PCI_WRITE_END_PADDING,
/* reserve bits 26-31 for low level drivers' internal use */
IB_QP_CREATE_RESERVED_START = 1 << 26,
IB_QP_CREATE_RESERVED_END = 1 << 31,
@@ -1267,6 +1303,7 @@ struct ib_qp_attr {
u8 alt_port_num;
u8 alt_timeout;
u32 rate_limit;
+ struct net_device *xmit_slave;
};
enum ib_wr_opcode {
@@ -1436,12 +1473,6 @@ enum ib_mr_rereg_flags {
IB_MR_REREG_SUPPORTED = ((IB_MR_REREG_ACCESS << 1) - 1)
};
-struct ib_fmr_attr {
- int max_pages;
- int max_maps;
- u8 page_shift;
-};
-
struct ib_umem;
enum rdma_remove_reason {
@@ -1456,6 +1487,11 @@ enum rdma_remove_reason {
RDMA_REMOVE_DRIVER_REMOVE,
/* uobj is being cleaned-up before being committed */
RDMA_REMOVE_ABORT,
+ /*
+ * uobj has been fully created, with the uobj->object set, but is being
+ * cleaned up before being comitted
+ */
+ RDMA_REMOVE_ABORT_HWOBJ,
};
struct ib_rdmacg_object {
@@ -1544,10 +1580,12 @@ struct ib_ah {
typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context);
enum ib_poll_context {
- IB_POLL_DIRECT, /* caller context, no hw completions */
IB_POLL_SOFTIRQ, /* poll from softirq context */
IB_POLL_WORKQUEUE, /* poll from workqueue */
IB_POLL_UNBOUND_WORKQUEUE, /* poll from unbound workqueue */
+ IB_POLL_LAST_POOL_TYPE = IB_POLL_UNBOUND_WORKQUEUE,
+
+ IB_POLL_DIRECT, /* caller context, no hw completions */
};
struct ib_cq {
@@ -1557,9 +1595,11 @@ struct ib_cq {
void (*event_handler)(struct ib_event *, void *);
void *cq_context;
int cqe;
+ unsigned int cqe_used;
atomic_t usecnt; /* count number of work queues */
enum ib_poll_context poll_ctx;
struct ib_wc *wc;
+ struct list_head pool_entry;
union {
struct irq_poll iop;
struct work_struct work;
@@ -1569,7 +1609,9 @@ struct ib_cq {
/* updated only by trace points */
ktime_t timestamp;
- bool interrupt;
+ u8 interrupt:1;
+ u8 shared:1;
+ unsigned int comp_vector;
/*
* Implementation details of the RDMA core, don't use in drivers:
@@ -1614,7 +1656,7 @@ enum ib_raw_packet_caps {
};
enum ib_wq_type {
- IB_WQT_RQ
+ IB_WQT_RQ = IB_UVERBS_WQT_RQ,
};
enum ib_wq_state {
@@ -1637,10 +1679,11 @@ struct ib_wq {
};
enum ib_wq_flags {
- IB_WQ_FLAGS_CVLAN_STRIPPING = 1 << 0,
- IB_WQ_FLAGS_SCATTER_FCS = 1 << 1,
- IB_WQ_FLAGS_DELAY_DROP = 1 << 2,
- IB_WQ_FLAGS_PCI_WRITE_END_PADDING = 1 << 3,
+ IB_WQ_FLAGS_CVLAN_STRIPPING = IB_UVERBS_WQ_FLAGS_CVLAN_STRIPPING,
+ IB_WQ_FLAGS_SCATTER_FCS = IB_UVERBS_WQ_FLAGS_SCATTER_FCS,
+ IB_WQ_FLAGS_DELAY_DROP = IB_UVERBS_WQ_FLAGS_DELAY_DROP,
+ IB_WQ_FLAGS_PCI_WRITE_END_PADDING =
+ IB_UVERBS_WQ_FLAGS_PCI_WRITE_END_PADDING,
};
struct ib_wq_init_attr {
@@ -1804,14 +1847,6 @@ struct ib_mw {
enum ib_mw_type type;
};
-struct ib_fmr {
- struct ib_device *device;
- struct ib_pd *pd;
- struct list_head list;
- u32 lkey;
- u32 rkey;
-};
-
/* Supported steering options */
enum ib_flow_attr_type {
/* steering according to rule specifications */
@@ -2198,6 +2233,7 @@ struct rdma_netdev {
void *clnt_priv;
struct ib_device *hca;
u8 port_num;
+ int mtu;
/*
* cleanup function must be specified.
@@ -2403,8 +2439,8 @@ struct ib_device_ops {
void (*disassociate_ucontext)(struct ib_ucontext *ibcontext);
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 (*create_ah)(struct ib_ah *ah, struct rdma_ah_init_attr *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);
void (*destroy_ah)(struct ib_ah *ah, u32 flags);
@@ -2453,12 +2489,6 @@ struct ib_device_ops {
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,
@@ -2687,6 +2717,10 @@ struct ib_device {
#endif
u32 index;
+
+ spinlock_t cq_pools_lock;
+ struct list_head cq_pools[IB_POLL_LAST_POOL_TYPE + 1];
+
struct rdma_restrack_root *res;
const struct uapi_definition *driver_def;
@@ -2709,12 +2743,13 @@ struct ib_device {
/* Used by iWarp CM */
char iw_ifname[IFNAMSIZ];
u32 iw_driver_flags;
+ u32 lag_flags;
};
struct ib_client_nl_info;
struct ib_client {
const char *name;
- void (*add) (struct ib_device *);
+ int (*add)(struct ib_device *ibdev);
void (*remove)(struct ib_device *, void *client_data);
void (*rename)(struct ib_device *dev, void *client_data);
int (*get_nl_info)(struct ib_device *ibdev, void *client_data,
@@ -3355,6 +3390,55 @@ static inline unsigned int rdma_find_pg_bit(unsigned long addr,
return __fls(pgsz);
}
+/**
+ * rdma_core_cap_opa_port - Return whether the RDMA Port is OPA or not.
+ * @device: Device
+ * @port_num: 1 based Port number
+ *
+ * Return true if port is an Intel OPA port , false if not
+ */
+static inline bool rdma_core_cap_opa_port(struct ib_device *device,
+ u32 port_num)
+{
+ return (device->port_data[port_num].immutable.core_cap_flags &
+ RDMA_CORE_PORT_INTEL_OPA) == RDMA_CORE_PORT_INTEL_OPA;
+}
+
+/**
+ * rdma_mtu_enum_to_int - Return the mtu of the port as an integer value.
+ * @device: Device
+ * @port_num: Port number
+ * @mtu: enum value of MTU
+ *
+ * Return the MTU size supported by the port as an integer value. Will return
+ * -1 if enum value of mtu is not supported.
+ */
+static inline int rdma_mtu_enum_to_int(struct ib_device *device, u8 port,
+ int mtu)
+{
+ if (rdma_core_cap_opa_port(device, port))
+ return opa_mtu_enum_to_int((enum opa_mtu)mtu);
+ else
+ return ib_mtu_enum_to_int((enum ib_mtu)mtu);
+}
+
+/**
+ * rdma_mtu_from_attr - Return the mtu of the port from the port attribute.
+ * @device: Device
+ * @port_num: Port number
+ * @attr: port attribute
+ *
+ * Return the MTU size supported by the port as an integer value.
+ */
+static inline int rdma_mtu_from_attr(struct ib_device *device, u8 port,
+ struct ib_port_attr *attr)
+{
+ if (rdma_core_cap_opa_port(device, port))
+ return attr->phys_mtu;
+ else
+ return ib_mtu_enum_to_int(attr->max_mtu);
+}
+
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,
@@ -3551,21 +3635,18 @@ 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
- * domain.
- * @pd: The protection domain associated with the SRQ.
- * @srq_init_attr: A list of initial attributes required to create the
- * SRQ. If SRQ creation succeeds, then the attributes are updated to
- * the actual capabilities of the created SRQ.
- *
- * srq_attr->max_wr and srq_attr->max_sge are read the determine the
- * requested size of the SRQ, and set to the actual values allocated
- * on return. If ib_create_srq() succeeds, then max_wr and max_sge
- * will always be at least as large as the requested values.
- */
-struct ib_srq *ib_create_srq(struct ib_pd *pd,
- struct ib_srq_init_attr *srq_init_attr);
+struct ib_srq *ib_create_srq_user(struct ib_pd *pd,
+ struct ib_srq_init_attr *srq_init_attr,
+ struct ib_usrq_object *uobject,
+ struct ib_udata *udata);
+static inline struct ib_srq *
+ib_create_srq(struct ib_pd *pd, struct ib_srq_init_attr *srq_init_attr)
+{
+ if (!pd->device->ops.create_srq)
+ return ERR_PTR(-EOPNOTSUPP);
+
+ return ib_create_srq_user(pd, srq_init_attr, NULL, NULL);
+}
/**
* ib_modify_srq - Modifies the attributes for the specified SRQ.
@@ -3816,6 +3897,8 @@ static inline struct ib_cq *ib_alloc_cq_any(struct ib_device *dev,
* ib_free_cq_user - Free kernel/user CQ
* @cq: The CQ to free
* @udata: Valid user data or NULL for kernel objects
+ *
+ * NOTE: This function shouldn't be called on shared CQs.
*/
void ib_free_cq_user(struct ib_cq *cq, struct ib_udata *udata);
@@ -3941,6 +4024,12 @@ static inline int ib_req_notify_cq(struct ib_cq *cq,
return cq->device->ops.req_notify_cq(cq, flags);
}
+struct ib_cq *ib_cq_pool_get(struct ib_device *dev, unsigned int nr_cqe,
+ int comp_vector_hint,
+ enum ib_poll_context poll_ctx);
+
+void ib_cq_pool_put(struct ib_cq *cq, unsigned int nr_cqe);
+
/**
* ib_req_ncomp_notif - Request completion notification when there are
* at least the specified number of unreaped completions on the CQ.
@@ -4209,45 +4298,6 @@ static inline u32 ib_inc_rkey(u32 rkey)
}
/**
- * ib_alloc_fmr - Allocates a unmapped fast memory region.
- * @pd: The protection domain associated with the unmapped region.
- * @mr_access_flags: Specifies the memory access rights.
- * @fmr_attr: Attributes of the unmapped region.
- *
- * A fast memory region must be mapped before it can be used as part of
- * a work request.
- */
-struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd,
- int mr_access_flags,
- struct ib_fmr_attr *fmr_attr);
-
-/**
- * ib_map_phys_fmr - Maps a list of physical pages to a fast memory region.
- * @fmr: The fast memory region to associate with the pages.
- * @page_list: An array of physical pages to map to the fast memory region.
- * @list_len: The number of pages in page_list.
- * @iova: The I/O virtual address to use with the mapped region.
- */
-static inline int ib_map_phys_fmr(struct ib_fmr *fmr,
- u64 *page_list, int list_len,
- u64 iova)
-{
- return fmr->device->ops.map_phys_fmr(fmr, page_list, list_len, iova);
-}
-
-/**
- * ib_unmap_fmr - Removes the mapping from a list of fast memory regions.
- * @fmr_list: A linked list of fast memory regions to unmap.
- */
-int ib_unmap_fmr(struct list_head *fmr_list);
-
-/**
- * ib_dealloc_fmr - Deallocates a fast memory region.
- * @fmr: The fast memory region to deallocate.
- */
-int ib_dealloc_fmr(struct ib_fmr *fmr);
-
-/**
* ib_attach_mcast - Attaches the specified QP to a multicast group.
* @qp: QP to attach to the multicast group. The QP must be type
* IB_QPT_UD.
@@ -4701,4 +4751,48 @@ static inline struct ib_device *rdma_device_to_ibdev(struct device *device)
bool rdma_dev_access_netns(const struct ib_device *device,
const struct net *net);
+
+#define IB_ROCE_UDP_ENCAP_VALID_PORT_MIN (0xC000)
+#define IB_GRH_FLOWLABEL_MASK (0x000FFFFF)
+
+/**
+ * rdma_flow_label_to_udp_sport - generate a RoCE v2 UDP src port value based
+ * on the flow_label
+ *
+ * This function will convert the 20 bit flow_label input to a valid RoCE v2
+ * UDP src port 14 bit value. All RoCE V2 drivers should use this same
+ * convention.
+ */
+static inline u16 rdma_flow_label_to_udp_sport(u32 fl)
+{
+ u32 fl_low = fl & 0x03fff, fl_high = fl & 0xFC000;
+
+ fl_low ^= fl_high >> 14;
+ return (u16)(fl_low | IB_ROCE_UDP_ENCAP_VALID_PORT_MIN);
+}
+
+/**
+ * rdma_calc_flow_label - generate a RDMA symmetric flow label value based on
+ * local and remote qpn values
+ *
+ * This function folded the multiplication results of two qpns, 24 bit each,
+ * fields, and converts it to a 20 bit results.
+ *
+ * This function will create symmetric flow_label value based on the local
+ * and remote qpn values. this will allow both the requester and responder
+ * to calculate the same flow_label for a given connection.
+ *
+ * This helper function should be used by driver in case the upper layer
+ * provide a zero flow_label value. This is to improve entropy of RDMA
+ * traffic in the network.
+ */
+static inline u32 rdma_calc_flow_label(u32 lqpn, u32 rqpn)
+{
+ u64 v = (u64)lqpn * rqpn;
+
+ v ^= v >> 20;
+ v ^= v >> 40;
+
+ return (u32)(v & IB_GRH_FLOWLABEL_MASK);
+}
#endif /* IB_VERBS_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 01:50:13 +0000