From: Ira Weiny ira.weiny@intel.com
The kmap() calls in these drivers are localized to a single thread. To avoid the over head of global PKRS updates use the new kmap_thread() call.
Cc: Mike Marciniszyn mike.marciniszyn@intel.com Cc: Dennis Dalessandro dennis.dalessandro@intel.com Cc: Doug Ledford dledford@redhat.com Cc: Jason Gunthorpe jgg@ziepe.ca Cc: Faisal Latif faisal.latif@intel.com Cc: Shiraz Saleem shiraz.saleem@intel.com Cc: Bernard Metzler bmt@zurich.ibm.com Signed-off-by: Ira Weiny ira.weiny@intel.com --- drivers/infiniband/hw/hfi1/sdma.c | 4 ++-- drivers/infiniband/hw/i40iw/i40iw_cm.c | 10 +++++----- drivers/infiniband/sw/siw/siw_qp_tx.c | 14 +++++++------- 3 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c index 04575c9afd61..09d206e3229a 100644 --- a/drivers/infiniband/hw/hfi1/sdma.c +++ b/drivers/infiniband/hw/hfi1/sdma.c @@ -3130,7 +3130,7 @@ int ext_coal_sdma_tx_descs(struct hfi1_devdata *dd, struct sdma_txreq *tx, }
if (type == SDMA_MAP_PAGE) { - kvaddr = kmap(page); + kvaddr = kmap_thread(page); kvaddr += offset; } else if (WARN_ON(!kvaddr)) { __sdma_txclean(dd, tx); @@ -3140,7 +3140,7 @@ int ext_coal_sdma_tx_descs(struct hfi1_devdata *dd, struct sdma_txreq *tx, memcpy(tx->coalesce_buf + tx->coalesce_idx, kvaddr, len); tx->coalesce_idx += len; if (type == SDMA_MAP_PAGE) - kunmap(page); + kunmap_thread(page);
/* If there is more data, return */ if (tx->tlen - tx->coalesce_idx) diff --git a/drivers/infiniband/hw/i40iw/i40iw_cm.c b/drivers/infiniband/hw/i40iw/i40iw_cm.c index a3b95805c154..122d7a5642a1 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_cm.c +++ b/drivers/infiniband/hw/i40iw/i40iw_cm.c @@ -3721,7 +3721,7 @@ int i40iw_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_thread(iwqp->page); dev->iw_priv_qp_ops->qp_send_lsmm(&iwqp->sc_qp, iwqp->ietf_mem.va, (accept.size + conn_param->private_data_len), @@ -3729,12 +3729,12 @@ int i40iw_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
} else { if (iwqp->page) - iwqp->sc_qp.qp_uk.sq_base = kmap(iwqp->page); + iwqp->sc_qp.qp_uk.sq_base = kmap_thread(iwqp->page); dev->iw_priv_qp_ops->qp_send_lsmm(&iwqp->sc_qp, NULL, 0, 0); }
if (iwqp->page) - kunmap(iwqp->page); + kunmap_thread(iwqp->page);
iwqp->cm_id = cm_id; cm_node->cm_id = cm_id; @@ -4102,10 +4102,10 @@ static void i40iw_cm_event_connected(struct i40iw_cm_event *event) i40iw_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_thread(iwqp->page); dev->iw_priv_qp_ops->qp_send_rtt(&iwqp->sc_qp, read0); if (iwqp->page) - kunmap(iwqp->page); + kunmap_thread(iwqp->page);
memset(&attr, 0, sizeof(attr)); attr.qp_state = IB_QPS_RTS; diff --git a/drivers/infiniband/sw/siw/siw_qp_tx.c b/drivers/infiniband/sw/siw/siw_qp_tx.c index d19d8325588b..4ed37c328d02 100644 --- a/drivers/infiniband/sw/siw/siw_qp_tx.c +++ b/drivers/infiniband/sw/siw/siw_qp_tx.c @@ -76,7 +76,7 @@ static int siw_try_1seg(struct siw_iwarp_tx *c_tx, void *paddr) if (unlikely(!p)) return -EFAULT;
- buffer = kmap(p); + buffer = kmap_thread(p);
if (likely(PAGE_SIZE - off >= bytes)) { memcpy(paddr, buffer + off, bytes); @@ -84,7 +84,7 @@ static int siw_try_1seg(struct siw_iwarp_tx *c_tx, void *paddr) unsigned long part = bytes - (PAGE_SIZE - off);
memcpy(paddr, buffer + off, part); - kunmap(p); + kunmap_thread(p);
if (!mem->is_pbl) p = siw_get_upage(mem->umem, @@ -96,10 +96,10 @@ static int siw_try_1seg(struct siw_iwarp_tx *c_tx, void *paddr) if (unlikely(!p)) return -EFAULT;
- buffer = kmap(p); + buffer = kmap_thread(p); memcpy(paddr + part, buffer, bytes - part); } - kunmap(p); + kunmap_thread(p); } } return (int)bytes; @@ -505,7 +505,7 @@ static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s) page_array[seg] = p;
if (!c_tx->use_sendpage) { - iov[seg].iov_base = kmap(p) + fp_off; + iov[seg].iov_base = kmap_thread(p) + fp_off; iov[seg].iov_len = plen;
/* Remember for later kunmap() */ @@ -518,9 +518,9 @@ static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s) plen); } else if (do_crc) { crypto_shash_update(c_tx->mpa_crc_hd, - kmap(p) + fp_off, + kmap_thread(p) + fp_off, plen); - kunmap(p); + kunmap_thread(p); } } else { u64 va = sge->laddr + sge_off;