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IB/hfi1: Add TID RDMA WRITE functionality into RDMA verbs

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This patch integrates TID RDMA WRITE protocol into normal RDMA verbs
framework. The TID RDMA WRITE protocol is an end-to-end protocol
between the hfi1 drivers on two OPA nodes that converts a qualified
RDMA WRITE request into a TID RDMA WRITE request to avoid data copying
on the responder side.

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 21:51:39 -08:00
committed by Doug Ledford
parent 572f0c3301
commit 3c6cb20a0d
7 changed files with 481 additions and 49 deletions
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7
drivers/infiniband/hw/hfi1/qp.c
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@@ -138,6 +138,12 @@ const struct rvt_operation_params hfi1_post_parms[RVT_OPERATION_MAX] = {
.flags = RVT_OPERATION_USE_RESERVE,
},
[IB_WR_TID_RDMA_WRITE] = {
.length = sizeof(struct ib_rdma_wr),
.qpt_support = BIT(IB_QPT_RC),
.flags = RVT_OPERATION_IGN_RNR_CNT,
},
};
static void flush_list_head(struct list_head *l)
@@ -780,6 +786,7 @@ void quiesce_qp(struct rvt_qp *qp)
struct hfi1_qp_priv *priv = qp->priv;
hfi1_del_tid_reap_timer(qp);
hfi1_del_tid_retry_timer(qp);
iowait_sdma_drain(&priv->s_iowait);
qp_pio_drain(qp);
flush_tx_list(qp);