* [PATCH for-rc] RDMA/qedr: iWARP invalid(zero) doorbell address fix.
@ 2020-11-27 9:08 Alok Prasad
2020-11-27 13:06 ` Jason Gunthorpe
0 siblings, 1 reply; 2+ messages in thread
From: Alok Prasad @ 2020-11-27 9:08 UTC (permalink / raw)
To: jgg, dledford
Cc: michal.kalderon, ariel.elior, linux-rdma, Alok Prasad,
Michal Kalderon, Igor Russkikh
This patch fixes issue introduced by a previous commit
where iWARP doorbell address wasn't initialized, causing
call trace when any RDMA application wants to use this
interface.
Fixes: 06e8d1df46ed ("RDMA/qedr: Add support for user mode XRC-SRQ's")
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
---
drivers/infiniband/hw/qedr/verbs.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 019642ff24a7..511c95bb3d01 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -1936,6 +1936,15 @@ static int qedr_create_user_qp(struct qedr_dev *dev,
}
if (rdma_protocol_iwarp(&dev->ibdev, 1)) {
+ qp->urq.db_rec_db2_addr = ctx->dpi_addr + uresp.rq_db2_offset;
+
+ /* calculate the db_rec_db2 data since it is constant so no
+ * need to reflect from user
+ */
+ qp->urq.db_rec_db2_data.data.icid = cpu_to_le16(qp->icid);
+ qp->urq.db_rec_db2_data.data.value =
+ cpu_to_le16(DQ_TCM_IWARP_POST_RQ_CF_CMD);
+
rc = qedr_db_recovery_add(dev, qp->urq.db_rec_db2_addr,
&qp->urq.db_rec_db2_data,
DB_REC_WIDTH_32B,
--
2.27.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH for-rc] RDMA/qedr: iWARP invalid(zero) doorbell address fix.
2020-11-27 9:08 [PATCH for-rc] RDMA/qedr: iWARP invalid(zero) doorbell address fix Alok Prasad
@ 2020-11-27 13:06 ` Jason Gunthorpe
0 siblings, 0 replies; 2+ messages in thread
From: Jason Gunthorpe @ 2020-11-27 13:06 UTC (permalink / raw)
To: Alok Prasad
Cc: dledford, michal.kalderon, ariel.elior, linux-rdma,
Michal Kalderon, Igor Russkikh
On Fri, Nov 27, 2020 at 09:08:32AM +0000, Alok Prasad wrote:
> This patch fixes issue introduced by a previous commit
> where iWARP doorbell address wasn't initialized, causing
> call trace when any RDMA application wants to use this
> interface.
Include the call trace in the commit message
Jason
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-11-27 9:08 [PATCH for-rc] RDMA/qedr: iWARP invalid(zero) doorbell address fix Alok Prasad
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