diff options
| -rw-r--r-- | drivers/infiniband/core/user_mad.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/core/uverbs_cmd.c | 10 | ||||
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 40 | ||||
| -rw-r--r-- | include/rdma/ib_verbs.h | 15 |
4 files changed, 55 insertions, 12 deletions
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index c1696e6084b2..38809962c105 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -506,7 +506,7 @@ static ssize_t ib_umad_write(struct file *filp, const char __user *buf, rdma_ah_set_dgid_raw(&ah_attr, packet->mad.hdr.gid); } - ah = rdma_create_ah(agent->qp->pd, &ah_attr); + ah = rdma_create_user_ah(agent->qp->pd, &ah_attr, NULL); if (IS_ERR(ah)) { ret = PTR_ERR(ah); goto err_up; diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 52a2cf2d83aa..0cef1863e2dc 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -2537,7 +2537,6 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, struct rdma_ah_attr attr; int ret; struct ib_udata udata; - u8 *dmac; if (out_len < sizeof resp) return -ENOSPC; @@ -2580,20 +2579,13 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, } else { rdma_ah_set_ah_flags(&attr, 0); } - dmac = rdma_ah_retrieve_dmac(&attr); - if (dmac) - memset(dmac, 0, ETH_ALEN); - - ah = pd->device->create_ah(pd, &attr, &udata); + ah = rdma_create_user_ah(pd, &attr, &udata); if (IS_ERR(ah)) { ret = PTR_ERR(ah); goto err_put; } - ah->device = pd->device; - ah->pd = pd; - atomic_inc(&pd->usecnt); ah->uobject = uobj; uobj->user_handle = cmd.user_handle; uobj->object = ah; diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index de57d6c11a25..4dcfe47c479d 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -302,11 +302,13 @@ EXPORT_SYMBOL(ib_dealloc_pd); /* Address handles */ -struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr) +static struct ib_ah *_rdma_create_ah(struct ib_pd *pd, + struct rdma_ah_attr *ah_attr, + struct ib_udata *udata) { struct ib_ah *ah; - ah = pd->device->create_ah(pd, ah_attr, NULL); + ah = pd->device->create_ah(pd, ah_attr, udata); if (!IS_ERR(ah)) { ah->device = pd->device; @@ -318,8 +320,42 @@ struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr) return ah; } + +struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr) +{ + return _rdma_create_ah(pd, ah_attr, NULL); +} EXPORT_SYMBOL(rdma_create_ah); +/** + * rdma_create_user_ah - Creates an address handle for the + * given address vector. + * It resolves destination mac address for ah attribute of RoCE type. + * @pd: The protection domain associated with the address handle. + * @ah_attr: The attributes of the address vector. + * @udata: pointer to user's input output buffer information need by + * provider driver. + * + * It returns 0 on success and returns appropriate error code on error. + * The address handle is used to reference a local or global destination + * in all UD QP post sends. + */ +struct ib_ah *rdma_create_user_ah(struct ib_pd *pd, + struct rdma_ah_attr *ah_attr, + struct ib_udata *udata) +{ + int err; + + if (ah_attr->type == RDMA_AH_ATTR_TYPE_ROCE) { + err = ib_resolve_eth_dmac(pd->device, ah_attr); + if (err) + return ERR_PTR(err); + } + + return _rdma_create_ah(pd, ah_attr, udata); +} +EXPORT_SYMBOL(rdma_create_user_ah); + int ib_get_rdma_header_version(const union rdma_network_hdr *hdr) { const struct iphdr *ip4h = (struct iphdr *)&hdr->roce4grh; diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index e8608b2dc844..09c4a695155e 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2858,6 +2858,21 @@ void ib_dealloc_pd(struct ib_pd *pd); struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr); /** + * rdma_create_user_ah - Creates an address handle for the given address vector. + * It resolves destination mac address for ah attribute of RoCE type. + * @pd: The protection domain associated with the address handle. + * @ah_attr: The attributes of the address vector. + * @udata: pointer to user's input output buffer information need by + * provider driver. + * + * It returns 0 on success and returns appropriate error code on error. + * The address handle is used to reference a local or global destination + * in all UD QP post sends. + */ +struct ib_ah *rdma_create_user_ah(struct ib_pd *pd, + struct rdma_ah_attr *ah_attr, + struct ib_udata *udata); +/** * ib_get_gids_from_rdma_hdr - Get sgid and dgid from GRH or IPv4 header * work completion. * @hdr: the L3 header to parse |