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-rw-r--r--include/rdma/ib_user_verbs.h48
-rw-r--r--include/rdma/ib_verbs.h106
-rw-r--r--include/rdma/rdma_cm.h1
-rw-r--r--include/rdma/rdma_user_cm.h3
4 files changed, 153 insertions, 5 deletions
diff --git a/include/rdma/ib_user_verbs.h b/include/rdma/ib_user_verbs.h
index fe5b05177a2..81aba3a73aa 100644
--- a/include/rdma/ib_user_verbs.h
+++ b/include/rdma/ib_user_verbs.h
@@ -81,7 +81,11 @@ enum {
IB_USER_VERBS_CMD_MODIFY_SRQ,
IB_USER_VERBS_CMD_QUERY_SRQ,
IB_USER_VERBS_CMD_DESTROY_SRQ,
- IB_USER_VERBS_CMD_POST_SRQ_RECV
+ IB_USER_VERBS_CMD_POST_SRQ_RECV,
+ IB_USER_VERBS_CMD_OPEN_XRCD,
+ IB_USER_VERBS_CMD_CLOSE_XRCD,
+ IB_USER_VERBS_CMD_CREATE_XSRQ,
+ IB_USER_VERBS_CMD_OPEN_QP
};
/*
@@ -222,6 +226,21 @@ struct ib_uverbs_dealloc_pd {
__u32 pd_handle;
};
+struct ib_uverbs_open_xrcd {
+ __u64 response;
+ __u32 fd;
+ __u32 oflags;
+ __u64 driver_data[0];
+};
+
+struct ib_uverbs_open_xrcd_resp {
+ __u32 xrcd_handle;
+};
+
+struct ib_uverbs_close_xrcd {
+ __u32 xrcd_handle;
+};
+
struct ib_uverbs_reg_mr {
__u64 response;
__u64 start;
@@ -404,6 +423,17 @@ struct ib_uverbs_create_qp {
__u64 driver_data[0];
};
+struct ib_uverbs_open_qp {
+ __u64 response;
+ __u64 user_handle;
+ __u32 pd_handle;
+ __u32 qpn;
+ __u8 qp_type;
+ __u8 reserved[7];
+ __u64 driver_data[0];
+};
+
+/* also used for open response */
struct ib_uverbs_create_qp_resp {
__u32 qp_handle;
__u32 qpn;
@@ -648,11 +678,25 @@ struct ib_uverbs_create_srq {
__u64 driver_data[0];
};
+struct ib_uverbs_create_xsrq {
+ __u64 response;
+ __u64 user_handle;
+ __u32 srq_type;
+ __u32 pd_handle;
+ __u32 max_wr;
+ __u32 max_sge;
+ __u32 srq_limit;
+ __u32 reserved;
+ __u32 xrcd_handle;
+ __u32 cq_handle;
+ __u64 driver_data[0];
+};
+
struct ib_uverbs_create_srq_resp {
__u32 srq_handle;
__u32 max_wr;
__u32 max_sge;
- __u32 reserved;
+ __u32 srqn;
};
struct ib_uverbs_modify_srq {
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 228be3e220d..bf5daafe8ec 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -112,6 +112,7 @@ enum ib_device_cap_flags {
*/
IB_DEVICE_UD_IP_CSUM = (1<<18),
IB_DEVICE_UD_TSO = (1<<19),
+ IB_DEVICE_XRC = (1<<20),
IB_DEVICE_MEM_MGT_EXTENSIONS = (1<<21),
IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1<<22),
};
@@ -207,6 +208,7 @@ enum ib_port_cap_flags {
IB_PORT_SM_DISABLED = 1 << 10,
IB_PORT_SYS_IMAGE_GUID_SUP = 1 << 11,
IB_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12,
+ IB_PORT_EXTENDED_SPEEDS_SUP = 1 << 14,
IB_PORT_CM_SUP = 1 << 16,
IB_PORT_SNMP_TUNNEL_SUP = 1 << 17,
IB_PORT_REINIT_SUP = 1 << 18,
@@ -415,7 +417,15 @@ enum ib_rate {
IB_RATE_40_GBPS = 7,
IB_RATE_60_GBPS = 8,
IB_RATE_80_GBPS = 9,
- IB_RATE_120_GBPS = 10
+ IB_RATE_120_GBPS = 10,
+ IB_RATE_14_GBPS = 11,
+ IB_RATE_56_GBPS = 12,
+ IB_RATE_112_GBPS = 13,
+ IB_RATE_168_GBPS = 14,
+ IB_RATE_25_GBPS = 15,
+ IB_RATE_100_GBPS = 16,
+ IB_RATE_200_GBPS = 17,
+ IB_RATE_300_GBPS = 18
};
/**
@@ -427,6 +437,13 @@ enum ib_rate {
int ib_rate_to_mult(enum ib_rate rate) __attribute_const__;
/**
+ * ib_rate_to_mbps - Convert the IB rate enum to Mbps.
+ * For example, IB_RATE_2_5_GBPS will be converted to 2500.
+ * @rate: rate to convert.
+ */
+int ib_rate_to_mbps(enum ib_rate rate) __attribute_const__;
+
+/**
* mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate
* enum.
* @mult: multiple to convert.
@@ -522,6 +539,11 @@ enum ib_cq_notify_flags {
IB_CQ_REPORT_MISSED_EVENTS = 1 << 2,
};
+enum ib_srq_type {
+ IB_SRQT_BASIC,
+ IB_SRQT_XRC
+};
+
enum ib_srq_attr_mask {
IB_SRQ_MAX_WR = 1 << 0,
IB_SRQ_LIMIT = 1 << 1,
@@ -537,6 +559,14 @@ struct ib_srq_init_attr {
void (*event_handler)(struct ib_event *, void *);
void *srq_context;
struct ib_srq_attr attr;
+ enum ib_srq_type srq_type;
+
+ union {
+ struct {
+ struct ib_xrcd *xrcd;
+ struct ib_cq *cq;
+ } xrc;
+ } ext;
};
struct ib_qp_cap {
@@ -565,7 +595,11 @@ enum ib_qp_type {
IB_QPT_UC,
IB_QPT_UD,
IB_QPT_RAW_IPV6,
- IB_QPT_RAW_ETHERTYPE
+ IB_QPT_RAW_ETHERTYPE,
+ /* Save 8 for RAW_PACKET */
+ IB_QPT_XRC_INI = 9,
+ IB_QPT_XRC_TGT,
+ IB_QPT_MAX
};
enum ib_qp_create_flags {
@@ -579,6 +613,7 @@ struct ib_qp_init_attr {
struct ib_cq *send_cq;
struct ib_cq *recv_cq;
struct ib_srq *srq;
+ struct ib_xrcd *xrcd; /* XRC TGT QPs only */
struct ib_qp_cap cap;
enum ib_sig_type sq_sig_type;
enum ib_qp_type qp_type;
@@ -586,6 +621,13 @@ struct ib_qp_init_attr {
u8 port_num; /* special QP types only */
};
+struct ib_qp_open_attr {
+ void (*event_handler)(struct ib_event *, void *);
+ void *qp_context;
+ u32 qp_num;
+ enum ib_qp_type qp_type;
+};
+
enum ib_rnr_timeout {
IB_RNR_TIMER_655_36 = 0,
IB_RNR_TIMER_000_01 = 1,
@@ -770,6 +812,7 @@ struct ib_send_wr {
u32 rkey;
} fast_reg;
} wr;
+ u32 xrc_remote_srq_num; /* XRC TGT QPs only */
};
struct ib_recv_wr {
@@ -831,6 +874,7 @@ struct ib_ucontext {
struct list_head qp_list;
struct list_head srq_list;
struct list_head ah_list;
+ struct list_head xrcd_list;
int closing;
};
@@ -858,6 +902,15 @@ struct ib_pd {
atomic_t usecnt; /* count all resources */
};
+struct ib_xrcd {
+ struct ib_device *device;
+ atomic_t usecnt; /* count all exposed resources */
+ struct inode *inode;
+
+ struct mutex tgt_qp_mutex;
+ struct list_head tgt_qp_list;
+};
+
struct ib_ah {
struct ib_device *device;
struct ib_pd *pd;
@@ -882,7 +935,16 @@ struct ib_srq {
struct ib_uobject *uobject;
void (*event_handler)(struct ib_event *, void *);
void *srq_context;
+ enum ib_srq_type srq_type;
atomic_t usecnt;
+
+ union {
+ struct {
+ struct ib_xrcd *xrcd;
+ struct ib_cq *cq;
+ u32 srq_num;
+ } xrc;
+ } ext;
};
struct ib_qp {
@@ -891,6 +953,11 @@ struct ib_qp {
struct ib_cq *send_cq;
struct ib_cq *recv_cq;
struct ib_srq *srq;
+ struct ib_xrcd *xrcd; /* XRC TGT QPs only */
+ struct list_head xrcd_list;
+ atomic_t usecnt; /* count times opened */
+ struct list_head open_list;
+ struct ib_qp *real_qp;
struct ib_uobject *uobject;
void (*event_handler)(struct ib_event *, void *);
void *qp_context;
@@ -1149,6 +1216,10 @@ struct ib_device {
struct ib_grh *in_grh,
struct ib_mad *in_mad,
struct ib_mad *out_mad);
+ 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_dma_mapping_ops *dma_ops;
@@ -1443,6 +1514,25 @@ int ib_query_qp(struct ib_qp *qp,
int ib_destroy_qp(struct ib_qp *qp);
/**
+ * ib_open_qp - Obtain a reference to an existing sharable QP.
+ * @xrcd - XRC domain
+ * @qp_open_attr: Attributes identifying the QP to open.
+ *
+ * Returns a reference to a sharable QP.
+ */
+struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd,
+ struct ib_qp_open_attr *qp_open_attr);
+
+/**
+ * ib_close_qp - Release an external reference to a QP.
+ * @qp: The QP handle to release
+ *
+ * The opened QP handle is released by the caller. The underlying
+ * shared QP is not destroyed until all internal references are released.
+ */
+int ib_close_qp(struct ib_qp *qp);
+
+/**
* ib_post_send - Posts a list of work requests to the send queue of
* the specified QP.
* @qp: The QP to post the work request on.
@@ -2060,4 +2150,16 @@ int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid);
*/
int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid);
+/**
+ * ib_alloc_xrcd - Allocates an XRC domain.
+ * @device: The device on which to allocate the XRC domain.
+ */
+struct ib_xrcd *ib_alloc_xrcd(struct ib_device *device);
+
+/**
+ * ib_dealloc_xrcd - Deallocates an XRC domain.
+ * @xrcd: The XRC domain to deallocate.
+ */
+int ib_dealloc_xrcd(struct ib_xrcd *xrcd);
+
#endif /* IB_VERBS_H */
diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h
index 26977c149c4..51988f80818 100644
--- a/include/rdma/rdma_cm.h
+++ b/include/rdma/rdma_cm.h
@@ -65,6 +65,7 @@ enum rdma_cm_event_type {
enum rdma_port_space {
RDMA_PS_SDP = 0x0001,
RDMA_PS_IPOIB = 0x0002,
+ RDMA_PS_IB = 0x013F,
RDMA_PS_TCP = 0x0106,
RDMA_PS_UDP = 0x0111,
};
diff --git a/include/rdma/rdma_user_cm.h b/include/rdma/rdma_user_cm.h
index fc82c1896f7..5348a000c8f 100644
--- a/include/rdma/rdma_user_cm.h
+++ b/include/rdma/rdma_user_cm.h
@@ -77,7 +77,8 @@ struct rdma_ucm_create_id {
__u64 uid;
__u64 response;
__u16 ps;
- __u8 reserved[6];
+ __u8 qp_type;
+ __u8 reserved[5];
};
struct rdma_ucm_create_id_resp {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-14 19:46:10 +0000