diff options
| author | Ira Weiny <ira.weiny@intel.com> | 2021-06-22 19:56:22 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-06-24 21:07:01 +0300 |
| commit | 7364e74d48ec094f46f6a5abfd91dcebece94c0c (patch) | |
| tree | a544669c2fa6e2bf100c409e45ffaf0882847e2f /drivers/infiniband/hw/irdma | |
| parent | 6becfe913bda839ae27224a2ea9d6cfb07c3fa2d (diff) | |
| download | linux-7364e74d48ec094f46f6a5abfd91dcebece94c0c.tar.xz | |
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>
Diffstat (limited to 'drivers/infiniband/hw/irdma')
| -rw-r--r-- | drivers/infiniband/hw/irdma/cm.c | 8 |
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; |