diff options
| author |   Kaike Wan <kaike.wan@intel.com> | 2019-01-23 21:51:07 -0800 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2019-02-05 18:07:44 -0500 |
| commit | 70dcb2e3dc6aa827d74e09c830ea06c660274880 (patch) | |
| tree | 0f813d35bcf93a49e6a511cc44531fcb8b2e3c42 /drivers/infiniband/hw/hfi1/tid_rdma.h | |
| parent | IB/hfi1: Resend the TID RDMA WRITE DATA packets (diff) | |
| download | linux-dev-70dcb2e3dc6aa827d74e09c830ea06c660274880.tar.xz linux-dev-70dcb2e3dc6aa827d74e09c830ea06c660274880.zip | |
IB/hfi1: Add the TID second leg send packet builder
To improve performance, the TID RDMA WRITE protocol is designed to
own a second leg to send data and ack packets in the KDETH PSN space.
This patch adds the packet builder for the requester side, which
contains the state machine to build TID RDMA WRITE DATA and TID
RDMA RESYNC packet.
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>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/tid_rdma.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/tid_rdma.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/tid_rdma.h b/drivers/infiniband/hw/hfi1/tid_rdma.h index bdcf18455d9d..0ce0ef6d60f2 100644 --- a/drivers/infiniband/hw/hfi1/tid_rdma.h +++ b/drivers/infiniband/hw/hfi1/tid_rdma.h @@ -26,9 +26,13 @@ * * HFI1_S_TID_WAIT_INTERLCK - QP is waiting for requester interlock */ +#define HFI1_S_TID_BUSY_SET BIT(0) +/* BIT(1) reserved for RVT_S_BUSY. */ #define HFI1_R_TID_RSC_TIMER BIT(2) +/* BIT(3) reserved for RVT_S_RESP_PENDING. */ /* BIT(4) reserved for RVT_S_ACK_PENDING. */ #define HFI1_S_TID_WAIT_INTERLCK BIT(5) +/* BIT(7) - BIT(15) reserved for RVT_S_WAIT_*. */ #define HFI1_S_TID_RETRY_TIMER BIT(17) #define HFI1_R_TID_SW_PSN BIT(19) @@ -298,4 +302,7 @@ u32 hfi1_build_tid_rdma_resync(struct rvt_qp *qp, struct rvt_swqe *wqe, void hfi1_rc_rcv_tid_rdma_resync(struct hfi1_packet *packet); +struct hfi1_pkt_state; +int hfi1_make_tid_rdma_pkt(struct rvt_qp *qp, struct hfi1_pkt_state *ps); + #endif /* HFI1_TID_RDMA_H */ |