diff options
Diffstat (limited to 'drivers/infiniband/core/verbs.c')
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 48 |
1 files changed, 43 insertions, 5 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index de57d6c11a25..d8f1a5d34f4f 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -53,6 +53,9 @@ #include "core_priv.h" +static int ib_resolve_eth_dmac(struct ib_device *device, + struct rdma_ah_attr *ah_attr); + static const char * const ib_events[] = { [IB_EVENT_CQ_ERR] = "CQ error", [IB_EVENT_QP_FATAL] = "QP fatal error", @@ -302,11 +305,13 @@ 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 +323,42 @@ 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; @@ -1221,8 +1260,8 @@ int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, } EXPORT_SYMBOL(ib_modify_qp_is_ok); -int ib_resolve_eth_dmac(struct ib_device *device, - struct rdma_ah_attr *ah_attr) +static int ib_resolve_eth_dmac(struct ib_device *device, + struct rdma_ah_attr *ah_attr) { int ret = 0; struct ib_global_route *grh; @@ -1281,7 +1320,6 @@ int ib_resolve_eth_dmac(struct ib_device *device, out: return ret; } -EXPORT_SYMBOL(ib_resolve_eth_dmac); /** * ib_modify_qp_with_udata - Modifies the attributes for the specified QP. |