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IB/hfi1: Remove dependence on qp->s_cur_size

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The qp->s_cur_size field assumes that the S_BUSY bit protects
the field from modification after the slock is dropped. Scaling the
send engine to multiple cores would break that assumption.

Correct the issue by carrying the payload size in the txreq structure.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Don Hiatt
2016-12-07 19:33:00 -08:00
committed by Doug Ledford
parent b7481944b0
commit e922ae06e9
6 changed files with 10 additions and 9 deletions
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drivers/infiniband/hw/hfi1/verbs_txreq.h
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@@ -65,6 +65,7 @@ struct verbs_txreq {
struct sdma_engine *sde;
struct send_context *psc;
u16 hdr_dwords;
u16 s_cur_size;
};
struct hfi1_ibdev;