Commit 5ff70cac authored by Joachim Fenkes's avatar Joachim Fenkes Committed by Roland Dreier

IB/ehca: SRQ fixes to enable IPoIB CM

Fix ehca SRQ support so that IPoIB connected mode works:

 - Report max_srq > 0 if SRQ is supported
 - Report "last wqe reached" asynchronous event when base QP dies;
   this is required by the IB spec and IPoIB CM relies on receiving it
   when cleaning up.
Signed-off-by: default avatarJoachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent fecea0ab
......@@ -93,9 +93,13 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props)
props->max_pd = min_t(int, rblock->max_pd, INT_MAX);
props->max_ah = min_t(int, rblock->max_ah, INT_MAX);
props->max_fmr = min_t(int, rblock->max_mr, INT_MAX);
props->max_srq = 0;
props->max_srq_wr = 0;
props->max_srq_sge = 0;
if (EHCA_BMASK_GET(HCA_CAP_SRQ, shca->hca_cap)) {
props->max_srq = props->max_qp;
props->max_srq_wr = props->max_qp_wr;
props->max_srq_sge = 3;
}
props->max_pkeys = 16;
props->local_ca_ack_delay
= rblock->local_ca_ack_delay;
......
......@@ -175,41 +175,55 @@ int ehca_error_data(struct ehca_shca *shca, void *data,
}
static void qp_event_callback(struct ehca_shca *shca, u64 eqe,
enum ib_event_type event_type, int fatal)
static void dispatch_qp_event(struct ehca_shca *shca, struct ehca_qp *qp,
enum ib_event_type event_type)
{
struct ib_event event;
struct ehca_qp *qp;
u32 token = EHCA_BMASK_GET(EQE_QP_TOKEN, eqe);
read_lock(&ehca_qp_idr_lock);
qp = idr_find(&ehca_qp_idr, token);
read_unlock(&ehca_qp_idr_lock);
if (!qp)
return;
if (fatal)
ehca_error_data(shca, qp, qp->ipz_qp_handle.handle);
event.device = &shca->ib_device;
event.event = event_type;
if (qp->ext_type == EQPT_SRQ) {
if (!qp->ib_srq.event_handler)
return;
event.event = fatal ? IB_EVENT_SRQ_ERR : event_type;
event.element.srq = &qp->ib_srq;
qp->ib_srq.event_handler(&event, qp->ib_srq.srq_context);
} else {
if (!qp->ib_qp.event_handler)
return;
event.event = event_type;
event.element.qp = &qp->ib_qp;
qp->ib_qp.event_handler(&event, qp->ib_qp.qp_context);
}
}
static void qp_event_callback(struct ehca_shca *shca, u64 eqe,
enum ib_event_type event_type, int fatal)
{
struct ehca_qp *qp;
u32 token = EHCA_BMASK_GET(EQE_QP_TOKEN, eqe);
read_lock(&ehca_qp_idr_lock);
qp = idr_find(&ehca_qp_idr, token);
read_unlock(&ehca_qp_idr_lock);
if (!qp)
return;
if (fatal)
ehca_error_data(shca, qp, qp->ipz_qp_handle.handle);
dispatch_qp_event(shca, qp, fatal && qp->ext_type == EQPT_SRQ ?
IB_EVENT_SRQ_ERR : event_type);
/*
* eHCA only processes one WQE at a time for SRQ base QPs,
* so the last WQE has been processed as soon as the QP enters
* error state.
*/
if (fatal && qp->ext_type == EQPT_SRQBASE)
dispatch_qp_event(shca, qp, IB_EVENT_QP_LAST_WQE_REACHED);
return;
}
......
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