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authorLinus Torvalds <torvalds@linux-foundation.org>2016-08-04 20:26:31 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-04 20:26:31 -0400
commit84e39eeb08c0ea7e9ec43ac820bf76a6fe8ecbad (patch)
tree680f704b29ec68cee50a6456088ffac1902bbf95 /include/rdma
parent0cda611386b2fcbf8bb32e9a5d82bfed4856fc36 (diff)
parent7c41765d8c30bdf1b056533c0521ecdec0ec11fa (diff)
Merge tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull second round of rdma updates from Doug Ledford: "This can be split out into just two categories: - fixes to the RDMA R/W API in regards to SG list length limits (about 5 patches) - fixes/features for the Intel hfi1 driver (everything else) The hfi1 driver is still being brought to full feature support by Intel, and they have a lot of people working on it, so that amounts to almost the entirety of this pull request" * tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (84 commits) IB/hfi1: Add cache evict LRU list IB/hfi1: Fix memory leak during unexpected shutdown IB/hfi1: Remove unneeded mm argument in remove function IB/hfi1: Consistently call ops->remove outside spinlock IB/hfi1: Use evict mmu rb operation IB/hfi1: Add evict operation to the mmu rb handler IB/hfi1: Fix TID caching actions IB/hfi1: Make the cache handler own its rb tree root IB/hfi1: Make use of mm consistent IB/hfi1: Fix user SDMA racy user request claim IB/hfi1: Fix error condition that needs to clean up IB/hfi1: Release node on insert failure IB/hfi1: Validate SDMA user iovector count IB/hfi1: Validate SDMA user request index IB/hfi1: Use the same capability state for all shared contexts IB/hfi1: Prevent null pointer dereference IB/hfi1: Rename TID mmu_rb_* functions IB/hfi1: Remove unneeded empty check in hfi1_mmu_rb_unregister() IB/hfi1: Restructure hfi1_file_open IB/hfi1: Make iovec loop index easy to understand ...
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/ib_verbs.h6
-rw-r--r--include/rdma/opa_port_info.h16
-rw-r--r--include/rdma/rdma_vt.h7
-rw-r--r--include/rdma/rdmavt_mr.h1
-rw-r--r--include/rdma/rdmavt_qp.h92
5 files changed, 96 insertions, 26 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 94a0bc5b5bdd..8e90dd28bb75 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1490,6 +1490,10 @@ struct ib_rwq_ind_table_init_attr {
struct ib_wq **ind_tbl;
};
+/*
+ * @max_write_sge: Maximum SGE elements per RDMA WRITE request.
+ * @max_read_sge: Maximum SGE elements per RDMA READ request.
+ */
struct ib_qp {
struct ib_device *device;
struct ib_pd *pd;
@@ -1511,6 +1515,8 @@ struct ib_qp {
void (*event_handler)(struct ib_event *, void *);
void *qp_context;
u32 qp_num;
+ u32 max_write_sge;
+ u32 max_read_sge;
enum ib_qp_type qp_type;
struct ib_rwq_ind_table *rwq_ind_tbl;
};
diff --git a/include/rdma/opa_port_info.h b/include/rdma/opa_port_info.h
index 2b95c2c336eb..9303e0e4f508 100644
--- a/include/rdma/opa_port_info.h
+++ b/include/rdma/opa_port_info.h
@@ -33,11 +33,6 @@
#if !defined(OPA_PORT_INFO_H)
#define OPA_PORT_INFO_H
-/* Temporary until HFI driver is updated */
-#ifndef USE_PI_LED_ENABLE
-#define USE_PI_LED_ENABLE 0
-#endif
-
#define OPA_PORT_LINK_MODE_NOP 0 /* No change */
#define OPA_PORT_LINK_MODE_OPA 4 /* Port mode is OPA */
@@ -274,23 +269,12 @@ enum port_info_field_masks {
OPA_PI_MASK_MTU_CAP = 0x0F,
};
-#if USE_PI_LED_ENABLE
struct opa_port_states {
u8 reserved;
u8 ledenable_offlinereason; /* 1 res, 1 bit, 6 bits */
u8 reserved2;
u8 portphysstate_portstate; /* 4 bits, 4 bits */
};
-#define PI_LED_ENABLE_SUP 1
-#else
-struct opa_port_states {
- u8 reserved;
- u8 offline_reason; /* 2 res, 6 bits */
- u8 reserved2;
- u8 portphysstate_portstate; /* 4 bits, 4 bits */
-};
-#define PI_LED_ENABLE_SUP 0
-#endif
struct opa_port_state_info {
struct opa_port_states port_states;
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index 9c9a27d42aaa..e31502107a58 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h
@@ -158,6 +158,7 @@ struct rvt_driver_params {
u32 max_mad_size;
u8 qos_shift;
u8 max_rdma_atomic;
+ u8 reserved_operations;
};
/* Protection domain */
@@ -351,6 +352,9 @@ struct rvt_dev_info {
/* Driver specific properties */
struct rvt_driver_params dparms;
+ /* post send table */
+ const struct rvt_operation_params *post_parms;
+
struct rvt_mregion __rcu *dma_mr;
struct rvt_lkey_table lkey_table;
@@ -484,6 +488,9 @@ void rvt_unregister_device(struct rvt_dev_info *rvd);
int rvt_check_ah(struct ib_device *ibdev, struct ib_ah_attr *ah_attr);
int rvt_init_port(struct rvt_dev_info *rdi, struct rvt_ibport *port,
int port_index, u16 *pkey_table);
+int rvt_fast_reg_mr(struct rvt_qp *qp, struct ib_mr *ibmr, u32 key,
+ int access);
+int rvt_invalidate_rkey(struct rvt_qp *qp, u32 rkey);
int rvt_rkey_ok(struct rvt_qp *qp, struct rvt_sge *sge,
u32 len, u64 vaddr, u32 rkey, int acc);
int rvt_lkey_ok(struct rvt_lkey_table *rkt, struct rvt_pd *pd,
diff --git a/include/rdma/rdmavt_mr.h b/include/rdma/rdmavt_mr.h
index 5edffdca8c53..6b3c6c8b6b77 100644
--- a/include/rdma/rdmavt_mr.h
+++ b/include/rdma/rdmavt_mr.h
@@ -81,6 +81,7 @@ struct rvt_mregion {
u32 mapsz; /* size of the map array */
u8 page_shift; /* 0 - non unform/non powerof2 sizes */
u8 lkey_published; /* in global table */
+ atomic_t lkey_invalid; /* true if current lkey is invalid */
struct completion comp; /* complete when refcount goes to zero */
atomic_t refcount;
struct rvt_segarray *map[0]; /* the segments */
diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h
index 6d23b879416a..bd34d0b56bf7 100644
--- a/include/rdma/rdmavt_qp.h
+++ b/include/rdma/rdmavt_qp.h
@@ -145,6 +145,12 @@
(RVT_PROCESS_SEND_OK | RVT_FLUSH_SEND)
/*
+ * Internal send flags
+ */
+#define RVT_SEND_RESERVE_USED IB_SEND_RESERVED_START
+#define RVT_SEND_COMPLETION_ONLY (IB_SEND_RESERVED_START << 1)
+
+/*
* Send work request queue entry.
* The size of the sg_list is determined when the QP is created and stored
* in qp->s_max_sge.
@@ -216,23 +222,43 @@ struct rvt_mmap_info {
* to send a RDMA read response or atomic operation.
*/
struct rvt_ack_entry {
- u8 opcode;
- u8 sent;
+ struct rvt_sge rdma_sge;
+ u64 atomic_data;
u32 psn;
u32 lpsn;
- union {
- struct rvt_sge rdma_sge;
- u64 atomic_data;
- };
+ u8 opcode;
+ u8 sent;
};
#define RC_QP_SCALING_INTERVAL 5
-/*
- * Variables prefixed with s_ are for the requester (sender).
- * Variables prefixed with r_ are for the responder (receiver).
- * Variables prefixed with ack_ are for responder replies.
+#define RVT_OPERATION_PRIV 0x00000001
+#define RVT_OPERATION_ATOMIC 0x00000002
+#define RVT_OPERATION_ATOMIC_SGE 0x00000004
+#define RVT_OPERATION_LOCAL 0x00000008
+#define RVT_OPERATION_USE_RESERVE 0x00000010
+
+#define RVT_OPERATION_MAX (IB_WR_RESERVED10 + 1)
+
+/**
+ * rvt_operation_params - op table entry
+ * @length - the length to copy into the swqe entry
+ * @qpt_support - a bit mask indicating QP type support
+ * @flags - RVT_OPERATION flags (see above)
*
+ * This supports table driven post send so that
+ * the driver can have differing an potentially
+ * different sets of operations.
+ *
+ **/
+
+struct rvt_operation_params {
+ size_t length;
+ u32 qpt_support;
+ u32 flags;
+};
+
+/*
* Common variables are protected by both r_rq.lock and s_lock in that order
* which only happens in modify_qp() or changing the QP 'state'.
*/
@@ -307,6 +333,7 @@ struct rvt_qp {
u32 s_next_psn; /* PSN for next request */
u32 s_avail; /* number of entries avail */
u32 s_ssn; /* SSN of tail entry */
+ atomic_t s_reserved_used; /* reserved entries in use */
spinlock_t s_lock ____cacheline_aligned_in_smp;
u32 s_flags;
@@ -343,6 +370,8 @@ struct rvt_qp {
struct rvt_sge_state s_ack_rdma_sge;
struct timer_list s_timer;
+ atomic_t local_ops_pending; /* number of fast_reg/local_inv reqs */
+
/*
* This sge list MUST be last. Do not add anything below here.
*/
@@ -436,6 +465,49 @@ static inline struct rvt_rwqe *rvt_get_rwqe_ptr(struct rvt_rq *rq, unsigned n)
rq->max_sge * sizeof(struct ib_sge)) * n);
}
+/**
+ * rvt_qp_wqe_reserve - reserve operation
+ * @qp - the rvt qp
+ * @wqe - the send wqe
+ *
+ * This routine used in post send to record
+ * a wqe relative reserved operation use.
+ */
+static inline void rvt_qp_wqe_reserve(
+ struct rvt_qp *qp,
+ struct rvt_swqe *wqe)
+{
+ wqe->wr.send_flags |= RVT_SEND_RESERVE_USED;
+ atomic_inc(&qp->s_reserved_used);
+}
+
+/**
+ * rvt_qp_wqe_unreserve - clean reserved operation
+ * @qp - the rvt qp
+ * @wqe - the send wqe
+ *
+ * This decrements the reserve use count.
+ *
+ * This call MUST precede the change to
+ * s_last to insure that post send sees a stable
+ * s_avail.
+ *
+ * An smp_mp__after_atomic() is used to insure
+ * the compiler does not juggle the order of the s_last
+ * ring index and the decrementing of s_reserved_used.
+ */
+static inline void rvt_qp_wqe_unreserve(
+ struct rvt_qp *qp,
+ struct rvt_swqe *wqe)
+{
+ if (unlikely(wqe->wr.send_flags & RVT_SEND_RESERVE_USED)) {
+ wqe->wr.send_flags &= ~RVT_SEND_RESERVE_USED;
+ atomic_dec(&qp->s_reserved_used);
+ /* insure no compiler re-order up to s_last change */
+ smp_mb__after_atomic();
+ }
+}
+
extern const int ib_rvt_state_ops[];
struct rvt_dev_info;