From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dasaratharaman Chandramouli Subject: [PATCH v2 rdma-next 18/18] IB/core: Define 'opa' rdma_ah_attr type Date: Fri, 14 Apr 2017 19:28:58 -0400 Message-ID: <1492212538-32459-19-git-send-email-dasaratharaman.chandramouli@intel.com> References: <1492212538-32459-1-git-send-email-dasaratharaman.chandramouli@intel.com> Return-path: In-Reply-To: <1492212538-32459-1-git-send-email-dasaratharaman.chandramouli-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-rdma , "Hefty, Sean" , Parav Pandit List-Id: linux-rdma@vger.kernel.org OPA ah_attr types allows core components to specify attributes that may be specific to opa devices. For instance, opa type ah_attr provides 32 bit lids enabling larger OPA fabric sizes. Reviewed-by: Ira Weiny Reviewed-by: Don Hiatt Reviewed-by: Sean Hefty Signed-off-by: Dasaratharaman Chandramouli --- include/rdma/ib_verbs.h | 24 +++++++++++++++++++++--- 1 file changed, 21 insertions(+), 3 deletions(-) diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 59b600a..bbe33df 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -840,6 +840,7 @@ struct ib_mr_status { enum rdma_ah_attr_type { RDMA_AH_ATTR_TYPE_IB, RDMA_AH_ATTR_TYPE_ROCE, + RDMA_AH_ATTR_TYPE_OPA, }; struct ib_ah_attr { @@ -851,6 +852,11 @@ struct roce_ah_attr { u8 dmac[ETH_ALEN]; }; +struct opa_ah_attr { + u32 dlid; + u8 src_path_bits; +}; + struct rdma_ah_attr { struct ib_global_route grh; u8 sl; @@ -861,6 +867,7 @@ struct rdma_ah_attr { union { struct ib_ah_attr ib; struct roce_ah_attr roce; + struct opa_ah_attr opa; }; }; @@ -3433,16 +3440,20 @@ static inline u8 *rdma_ah_retrieve_dmac(struct rdma_ah_attr *attr) return NULL; } -static inline void rdma_ah_set_dlid(struct rdma_ah_attr *attr, u16 dlid) +static inline void rdma_ah_set_dlid(struct rdma_ah_attr *attr, u32 dlid) { if (attr->type == RDMA_AH_ATTR_TYPE_IB) - attr->ib.dlid = dlid; + attr->ib.dlid = (u16)dlid; + else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) + attr->opa.dlid = dlid; } -static inline u16 rdma_ah_get_dlid(const struct rdma_ah_attr *attr) +static inline u32 rdma_ah_get_dlid(const struct rdma_ah_attr *attr) { if (attr->type == RDMA_AH_ATTR_TYPE_IB) return attr->ib.dlid; + else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) + return attr->opa.dlid; return 0; } @@ -3461,12 +3472,16 @@ static inline void rdma_ah_set_path_bits(struct rdma_ah_attr *attr, { if (attr->type == RDMA_AH_ATTR_TYPE_IB) attr->ib.src_path_bits = src_path_bits; + else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) + attr->opa.src_path_bits = src_path_bits; } static inline u8 rdma_ah_get_path_bits(const struct rdma_ah_attr *attr) { if (attr->type == RDMA_AH_ATTR_TYPE_IB) return attr->ib.src_path_bits; + else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) + return attr->opa.src_path_bits; return 0; } @@ -3562,6 +3577,9 @@ static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev, if ((rdma_protocol_roce(dev, port_num)) || (rdma_protocol_iwarp(dev, port_num))) return RDMA_AH_ATTR_TYPE_ROCE; + else if ((rdma_protocol_ib(dev, port_num)) && + (rdma_cap_opa_ah(dev, port_num))) + return RDMA_AH_ATTR_TYPE_OPA; else return RDMA_AH_ATTR_TYPE_IB; } -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html