From 9e93e967f7b452e6c9e4a33d0b42ff64fa7293c4 Mon Sep 17 00:00:00 2001 From: Kaike Wan Date: Wed, 23 Jan 2019 21:50:14 -0800 Subject: IB/hfi1: Add a function to receive TID RDMA ACK packet This patch adds a function to receive TID RDMA ACK packet, which could be an acknowledge to either a TID RDMA WRITE DATA packet or an TID RDMA RESYNC packet. For an ACK to TID RDMA WRITE DATA packet, the request segments are completed appropriately. For an ACK to a TID RDMA RESYNC packet, any pending segment flow information is updated accordingly. Signed-off-by: Mitko Haralanov Signed-off-by: Mike Marciniszyn Signed-off-by: Ashutosh Dixit Signed-off-by: Kaike Wan Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hfi1/verbs.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/infiniband/hw/hfi1/verbs.h') diff --git a/drivers/infiniband/hw/hfi1/verbs.h b/drivers/infiniband/hw/hfi1/verbs.h index 3a97a39aeba4..30e3f5af5cf1 100644 --- a/drivers/infiniband/hw/hfi1/verbs.h +++ b/drivers/infiniband/hw/hfi1/verbs.h @@ -170,9 +170,12 @@ struct hfi1_qp_priv { struct tid_rdma_qp_params tid_rdma; struct rvt_qp *owner; u8 hdr_type; /* 9B or 16B */ + atomic_t n_tid_requests; /* # of sent TID RDMA requests */ unsigned long tid_timer_timeout_jiffies; /* variables for the TID RDMA SE state machine */ + u8 s_state; + u8 s_retry; u8 rnr_nak_state; /* RNR NAK state */ u8 s_nak_state; u32 s_nak_psn; @@ -197,6 +200,7 @@ struct hfi1_qp_priv { u32 r_next_psn_kdeth; u32 r_next_psn_kdeth_save; + u32 s_resync_psn; u8 sync_pt; /* Set when QP reaches sync point */ u8 resync; }; -- cgit v1.2.3-59-g8ed1b