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RDMA/hns: Add SRQ asynchronous event support

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This patch implements the process flow of SRQ asynchronous
event.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Lijun Ou 2018-11-24 16:49:22 +08:00 committed by Jason Gunthorpe
parent c7bcb13442
commit 81fce6291d
3 changed files with 36 additions and 1 deletions
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7
drivers/infiniband/hw/hns/hns_roce_device.h
View File

@ -646,6 +646,12 @@ struct hns_roce_aeqe {
u32 rsv1;
} qp_event;
struct {
__le32 srq;
u32 rsv0;
u32 rsv1;
} srq_event;
struct {
__le32 cq;
u32 rsv0;
@ -1135,6 +1141,7 @@ void hns_roce_free_db(struct hns_roce_dev *hr_dev, struct hns_roce_db *db);
void hns_roce_cq_completion(struct hns_roce_dev *hr_dev, u32 cqn);
void hns_roce_cq_event(struct hns_roce_dev *hr_dev, u32 cqn, int event_type);
void hns_roce_qp_event(struct hns_roce_dev *hr_dev, u32 qpn, int event_type);
void hns_roce_srq_event(struct hns_roce_dev *hr_dev, u32 srqn, int event_type);
int hns_get_gid_index(struct hns_roce_dev *hr_dev, u8 port, int gid_index);
int hns_roce_init(struct hns_roce_dev *hr_dev);
void hns_roce_exit(struct hns_roce_dev *hr_dev);

7
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
View File

@ -4459,6 +4459,7 @@ static int hns_roce_v2_aeq_int(struct hns_roce_dev *hr_dev,
int aeqe_found = 0;
int event_type;
int sub_type;
u32 srqn;
u32 qpn;
u32 cqn;
@ -4481,6 +4482,9 @@ static int hns_roce_v2_aeq_int(struct hns_roce_dev *hr_dev,
cqn = roce_get_field(aeqe->event.cq_event.cq,
HNS_ROCE_V2_AEQE_EVENT_QUEUE_NUM_M,
HNS_ROCE_V2_AEQE_EVENT_QUEUE_NUM_S);
srqn = roce_get_field(aeqe->event.srq_event.srq,
HNS_ROCE_V2_AEQE_EVENT_QUEUE_NUM_M,
HNS_ROCE_V2_AEQE_EVENT_QUEUE_NUM_S);
switch (event_type) {
case HNS_ROCE_EVENT_TYPE_PATH_MIG:
@ -4488,13 +4492,14 @@ static int hns_roce_v2_aeq_int(struct hns_roce_dev *hr_dev,
case HNS_ROCE_EVENT_TYPE_COMM_EST:
case HNS_ROCE_EVENT_TYPE_SQ_DRAINED:
case HNS_ROCE_EVENT_TYPE_WQ_CATAS_ERROR:
case HNS_ROCE_EVENT_TYPE_SRQ_LAST_WQE_REACH:
case HNS_ROCE_EVENT_TYPE_INV_REQ_LOCAL_WQ_ERROR:
case HNS_ROCE_EVENT_TYPE_LOCAL_WQ_ACCESS_ERROR:
hns_roce_qp_event(hr_dev, qpn, event_type);
break;
case HNS_ROCE_EVENT_TYPE_SRQ_LIMIT_REACH:
case HNS_ROCE_EVENT_TYPE_SRQ_LAST_WQE_REACH:
case HNS_ROCE_EVENT_TYPE_SRQ_CATAS_ERROR:
hns_roce_srq_event(hr_dev, srqn, event_type);
break;
case HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR:
case HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW:

23
drivers/infiniband/hw/hns/hns_roce_srq.c
View File

@ -9,6 +9,29 @@
#include "hns_roce_cmd.h"
#include "hns_roce_hem.h"
void hns_roce_srq_event(struct hns_roce_dev *hr_dev, u32 srqn, int event_type)
{
struct hns_roce_srq_table *srq_table = &hr_dev->srq_table;
struct hns_roce_srq *srq;
xa_lock(&srq_table->xa);
srq = xa_load(&srq_table->xa, srqn & (hr_dev->caps.num_srqs - 1));
if (srq)
atomic_inc(&srq->refcount);
xa_unlock(&srq_table->xa);
if (!srq) {
dev_warn(hr_dev->dev, "Async event for bogus SRQ %08x\n", srqn);
return;
}
srq->event(srq, event_type);
if (atomic_dec_and_test(&srq->refcount))
complete(&srq->free);
}
EXPORT_SYMBOL_GPL(hns_roce_srq_event);
static void hns_roce_ib_srq_event(struct hns_roce_srq *srq,
enum hns_roce_event event_type)
{