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IB/hfi1: Add TID RDMA retry timer

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This patch adds the TID RDMA retry timer to make sure that TID RDMA
WRITE DATA packets for a segment are received successfully by the
responder. This timer is generally armed when the last TID RDMA
WRITE DATA packet for a segment is sent out and stopped when all
TID RDMA DATA packets are acknowledged.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Kaike Wan
2019-01-23 21:50:24 -08:00
committed by Doug Ledford
parent 9e93e967f7
commit 829eaee5d0
4 changed files with 101 additions and 0 deletions
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4
drivers/infiniband/hw/hfi1/tid_rdma.h
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@@ -29,6 +29,7 @@
#define HFI1_R_TID_RSC_TIMER BIT(2)
/* BIT(4) reserved for RVT_S_ACK_PENDING. */
#define HFI1_S_TID_WAIT_INTERLCK BIT(5)
#define HFI1_S_TID_RETRY_TIMER BIT(17)
#define HFI1_R_TID_SW_PSN BIT(19)
/*
@@ -288,4 +289,7 @@ u32 hfi1_build_tid_rdma_write_ack(struct rvt_qp *qp, struct rvt_ack_entry *e,
void hfi1_rc_rcv_tid_rdma_ack(struct hfi1_packet *packet);
void hfi1_add_tid_retry_timer(struct rvt_qp *qp);
void hfi1_del_tid_retry_timer(struct rvt_qp *qp);
#endif /* HFI1_TID_RDMA_H */