From b036db83c0ec8d1e81df19410a494be4cfe0b186 Mon Sep 17 00:00:00 2001 From: Dennis Dalessandro Date: Wed, 6 Jan 2016 10:04:23 -0800 Subject: [PATCH] IB/rdmavt: Add driver notification for new AH Drivers may need to do some work once an address handle has been created. Add a driver function for this purpose. Reviewed-by: Ira Weiny Reviewed-by: Mike Marciniszyn Reviewed-by: Harish Chegondi Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/sw/rdmavt/ah.c | 7 +++++-- include/rdma/rdma_vt.h | 41 ++++++++++++++++++++++++--------------- 2 files changed, 30 insertions(+), 18 deletions(-) diff --git a/drivers/infiniband/sw/rdmavt/ah.c b/drivers/infiniband/sw/rdmavt/ah.c index 2519db9..621afc3 100644 --- a/drivers/infiniband/sw/rdmavt/ah.c +++ b/drivers/infiniband/sw/rdmavt/ah.c @@ -83,8 +83,8 @@ int rvt_check_ah(struct ib_device *ibdev, !(ah_attr->ah_flags & IB_AH_GRH)) return -EINVAL; } - if (rdi->driver_f.check_ah(ibdev, ah_attr)) - return -EINVAL; + if (rdi->driver_f.check_ah) + return rdi->driver_f.check_ah(ibdev, ah_attr); return 0; } EXPORT_SYMBOL(rvt_check_ah); @@ -123,6 +123,9 @@ struct ib_ah *rvt_create_ah(struct ib_pd *pd, ah->attr = *ah_attr; atomic_set(&ah->refcount, 0); + if (dev->driver_f.notify_new_ah) + dev->driver_f.notify_new_ah(pd->device, ah_attr, ah); + return &ah->ibah; } diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h index a3d6a5b..ef66d2b 100644 --- a/include/rdma/rdma_vt.h +++ b/include/rdma/rdma_vt.h @@ -467,9 +467,21 @@ struct rvt_driver_params { int nports; }; -/* - * Functions that drivers are required to support - */ +/* Protection domain */ +struct rvt_pd { + struct ib_pd ibpd; + int user; /* non-zero if created from user space */ +}; + +/* Address handle */ +struct rvt_ah { + struct ib_ah ibah; + struct ib_ah_attr attr; + atomic_t refcount; + u8 vl; + u8 log_pmtu; +}; + struct rvt_dev_info; struct rvt_driver_provided { /* @@ -478,23 +490,20 @@ struct rvt_driver_provided { * instead drivers are responsible for setting the correct callback for * this. */ + + /* -------------------*/ + /* Required functions */ + /* -------------------*/ int (*port_callback)(struct ib_device *, u8, struct kobject *); const char * (*get_card_name)(struct rvt_dev_info *rdi); struct pci_dev * (*get_pci_dev)(struct rvt_dev_info *rdi); - int (*check_ah)(struct ib_device *, struct ib_ah_attr *); -}; -/* Protection domain */ -struct rvt_pd { - struct ib_pd ibpd; - int user; /* non-zero if created from user space */ -}; - -/* Address handle */ -struct rvt_ah { - struct ib_ah ibah; - struct ib_ah_attr attr; - atomic_t refcount; + /*--------------------*/ + /* Optional functions */ + /*--------------------*/ + int (*check_ah)(struct ib_device *, struct ib_ah_attr *); + void (*notify_new_ah)(struct ib_device *, struct ib_ah_attr *, + struct rvt_ah *); }; struct rvt_dev_info { -- 2.7.4