| Message ID | 20201127090832.11191-1-palok@marvell.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [for-rc] RDMA/qedr: iWARP invalid(zero) doorbell address fix. | expand |
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
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,
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(+)