diff options
| -rw-r--r-- | net/rds/ib.c | 10 | ||||
| -rw-r--r-- | net/rds/ib.h | 4 | ||||
| -rw-r--r-- | net/rds/ib_mr.h | 1 |
3 files changed, 15 insertions, 0 deletions
diff --git a/net/rds/ib.c b/net/rds/ib.c index bb32cb9d85f1..b5342fddaf98 100644 --- a/net/rds/ib.c +++ b/net/rds/ib.c @@ -140,6 +140,12 @@ static void rds_ib_add_one(struct ib_device *device) rds_ibdev->max_wrs = device->attrs.max_qp_wr; rds_ibdev->max_sge = min(device->attrs.max_sge, RDS_IB_MAX_SGE); + rds_ibdev->has_fr = (device->attrs.device_cap_flags & + IB_DEVICE_MEM_MGT_EXTENSIONS); + rds_ibdev->has_fmr = (device->alloc_fmr && device->dealloc_fmr && + device->map_phys_fmr && device->unmap_fmr); + rds_ibdev->use_fastreg = (rds_ibdev->has_fr && !rds_ibdev->has_fmr); + rds_ibdev->fmr_max_remaps = device->attrs.max_map_per_fmr?: 32; rds_ibdev->max_1m_mrs = device->attrs.max_mr ? min_t(unsigned int, (device->attrs.max_mr / 2), @@ -178,6 +184,10 @@ static void rds_ib_add_one(struct ib_device *device) rds_ibdev->fmr_max_remaps, rds_ibdev->max_1m_mrs, rds_ibdev->max_8k_mrs); + pr_info("RDS/IB: %s: %s supported and preferred\n", + device->name, + rds_ibdev->use_fastreg ? "FRMR" : "FMR"); + INIT_LIST_HEAD(&rds_ibdev->ipaddr_list); INIT_LIST_HEAD(&rds_ibdev->conn_list); diff --git a/net/rds/ib.h b/net/rds/ib.h index 62fe7d5330ad..c5eddc2086ff 100644 --- a/net/rds/ib.h +++ b/net/rds/ib.h @@ -200,6 +200,10 @@ struct rds_ib_device { struct list_head conn_list; struct ib_device *dev; struct ib_pd *pd; + bool has_fmr; + bool has_fr; + bool use_fastreg; + unsigned int max_mrs; struct rds_ib_mr_pool *mr_1m_pool; struct rds_ib_mr_pool *mr_8k_pool; diff --git a/net/rds/ib_mr.h b/net/rds/ib_mr.h index add7725bc062..2f9b9c3afc59 100644 --- a/net/rds/ib_mr.h +++ b/net/rds/ib_mr.h @@ -93,6 +93,7 @@ struct rds_ib_mr_pool { extern struct workqueue_struct *rds_ib_mr_wq; extern unsigned int rds_ib_mr_1m_pool_size; extern unsigned int rds_ib_mr_8k_pool_size; +extern bool prefer_frmr; struct rds_ib_mr_pool *rds_ib_create_mr_pool(struct rds_ib_device *rds_dev, int npages); |