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authorIra Weiny <ira.weiny@intel.com>2021-06-22 09:56:22 -0700
committerJason Gunthorpe <jgg@nvidia.com>2021-06-24 15:07:01 -0300
commit7364e74d48ec094f46f6a5abfd91dcebece94c0c (patch)
treea544669c2fa6e2bf100c409e45ffaf0882847e2f
parent6becfe913bda839ae27224a2ea9d6cfb07c3fa2d (diff)
RDMA/irdma: Remove use of kmap()
kmap() is being deprecated and will break uses of device dax after PKS protection is introduced.[1] The kmap() used in the irdma CM driver is thread local. Therefore kmap_local_page() is sufficient to use and may provide performance benefits as well. kmap_local_page() will work with device dax and pgmap protected pages. Use kmap_local_page() instead of kmap(). [1] https://lore.kernel.org/lkml/20201009195033.3208459-59-ira.weiny@intel.com/ Link: https://lore.kernel.org/r/20210622165622.2638628-1-ira.weiny@intel.com Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
-rw-r--r--drivers/infiniband/hw/irdma/cm.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/irdma/cm.c b/drivers/infiniband/hw/irdma/cm.c
index 3d2bdb033a54..6b62299abfbb 100644
--- a/drivers/infiniband/hw/irdma/cm.c
+++ b/drivers/infiniband/hw/irdma/cm.c
@@ -3675,14 +3675,14 @@ int irdma_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
ibmr->device = iwpd->ibpd.device;
iwqp->lsmm_mr = ibmr;
if (iwqp->page)
- iwqp->sc_qp.qp_uk.sq_base = kmap(iwqp->page);
+ iwqp->sc_qp.qp_uk.sq_base = kmap_local_page(iwqp->page);
cm_node->lsmm_size = accept.size + conn_param->private_data_len;
irdma_sc_send_lsmm(&iwqp->sc_qp, iwqp->ietf_mem.va, cm_node->lsmm_size,
ibmr->lkey);
if (iwqp->page)
- kunmap(iwqp->page);
+ kunmap_local(iwqp->sc_qp.qp_uk.sq_base);
iwqp->cm_id = cm_id;
cm_node->cm_id = cm_id;
@@ -4093,10 +4093,10 @@ static void irdma_cm_event_connected(struct irdma_cm_event *event)
irdma_cm_init_tsa_conn(iwqp, cm_node);
read0 = (cm_node->send_rdma0_op == SEND_RDMA_READ_ZERO);
if (iwqp->page)
- iwqp->sc_qp.qp_uk.sq_base = kmap(iwqp->page);
+ iwqp->sc_qp.qp_uk.sq_base = kmap_local_page(iwqp->page);
irdma_sc_send_rtt(&iwqp->sc_qp, read0);
if (iwqp->page)
- kunmap(iwqp->page);
+ kunmap_local(iwqp->sc_qp.qp_uk.sq_base);
attr.qp_state = IB_QPS_RTS;
cm_node->qhash_set = false;