From: Hiatt, Don Date: Mon, 14 Aug 2017 18:17:43 +0000 (-0400) Subject: Add OPA extended LID support X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=62ede7779904bc75bdd84f1ff0016113956ce3b4;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git Add OPA extended LID support This patch series primarily increases sizes of variables that hold lid values from 16 to 32 bits. Additionally, it adds a check in the IB mad stack to verify a properly formatted MAD when OPA extended LIDs are used. Signed-off-by: Don Hiatt Reviewed-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 7a389697e2ec..fa3b0a428195 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -1770,7 +1770,7 @@ static void cm_process_routed_req(struct cm_req_msg *req_msg, struct ib_wc *wc) { if (!cm_req_get_primary_subnet_local(req_msg)) { if (req_msg->primary_local_lid == IB_LID_PERMISSIVE) { - req_msg->primary_local_lid = ib_slid_be16(wc->slid); + req_msg->primary_local_lid = ib_lid_be16(wc->slid); cm_req_set_primary_sl(req_msg, wc->sl); } @@ -1780,7 +1780,7 @@ static void cm_process_routed_req(struct cm_req_msg *req_msg, struct ib_wc *wc) if (!cm_req_get_alt_subnet_local(req_msg)) { if (req_msg->alt_local_lid == IB_LID_PERMISSIVE) { - req_msg->alt_local_lid = ib_slid_be16(wc->slid); + req_msg->alt_local_lid = ib_lid_be16(wc->slid); cm_req_set_alt_sl(req_msg, wc->sl); } diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index ff3c67a7aaad..c1696e6084b2 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -229,7 +229,7 @@ static void recv_handler(struct ib_mad_agent *agent, packet->mad.hdr.status = 0; packet->mad.hdr.length = hdr_size(file) + mad_recv_wc->mad_len; packet->mad.hdr.qpn = cpu_to_be32(mad_recv_wc->wc->src_qp); - packet->mad.hdr.lid = ib_slid_be16(mad_recv_wc->wc->slid); + packet->mad.hdr.lid = ib_lid_be16(mad_recv_wc->wc->slid); packet->mad.hdr.sl = mad_recv_wc->wc->sl; packet->mad.hdr.path_bits = mad_recv_wc->wc->dlid_path_bits; packet->mad.hdr.pkey_index = mad_recv_wc->wc->pkey_index; diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 39a0f1dc84e4..a21881e22bad 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -275,12 +275,13 @@ ssize_t ib_uverbs_query_port(struct ib_uverbs_file *file, resp.bad_pkey_cntr = attr.bad_pkey_cntr; resp.qkey_viol_cntr = attr.qkey_viol_cntr; resp.pkey_tbl_len = attr.pkey_tbl_len; + if (rdma_cap_opa_ah(ib_dev, cmd.port_num)) { - resp.lid = OPA_TO_IB_UCAST_LID(attr.lid); + resp.lid = OPA_TO_IB_UCAST_LID(attr.lid); resp.sm_lid = OPA_TO_IB_UCAST_LID(attr.sm_lid); } else { - resp.lid = (u16)attr.lid; - resp.sm_lid = (u16)attr.sm_lid; + resp.lid = ib_lid_cpu16(attr.lid); + resp.sm_lid = ib_lid_cpu16(attr.sm_lid); } resp.lmc = attr.lmc; resp.max_vl_num = attr.max_vl_num; @@ -1206,9 +1207,9 @@ static int copy_wc_to_user(struct ib_device *ib_dev, void __user *dest, tmp.wc_flags = wc->wc_flags; tmp.pkey_index = wc->pkey_index; if (rdma_cap_opa_ah(ib_dev, wc->port_num)) - tmp.slid = OPA_TO_IB_UCAST_LID(wc->slid); + tmp.slid = OPA_TO_IB_UCAST_LID(wc->slid); else - tmp.slid = ib_slid_cpu16(wc->slid); + tmp.slid = ib_lid_cpu16(wc->slid); tmp.sl = wc->sl; tmp.dlid_path_bits = wc->dlid_path_bits; tmp.port_num = wc->port_num; diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c index 8daa3a5f7e95..11be4d19e607 100644 --- a/drivers/infiniband/hw/hfi1/mad.c +++ b/drivers/infiniband/hw/hfi1/mad.c @@ -4216,7 +4216,7 @@ static int opa_local_smp_check(struct hfi1_ibport *ibp, const struct ib_wc *in_wc) { struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); - u16 slid = ib_slid_cpu16(in_wc->slid); + u16 slid = ib_lid_cpu16(in_wc->slid); u16 pkey; if (in_wc->pkey_index >= ARRAY_SIZE(ppd->pkeys)) diff --git a/drivers/infiniband/hw/mlx4/alias_GUID.c b/drivers/infiniband/hw/mlx4/alias_GUID.c index 5a897b0106a9..0e4f60cfc59d 100644 --- a/drivers/infiniband/hw/mlx4/alias_GUID.c +++ b/drivers/infiniband/hw/mlx4/alias_GUID.c @@ -528,7 +528,7 @@ static int set_guid_rec(struct ib_device *ibdev, memset(&guid_info_rec, 0, sizeof (struct ib_sa_guidinfo_rec)); - guid_info_rec.lid = cpu_to_be16((u16)attr.lid); + guid_info_rec.lid = ib_lid_be16(attr.lid); guid_info_rec.block_num = index; memcpy(guid_info_rec.guid_info_list, rec_det->all_recs, diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index 04fb44e7699e..0793a21d76f4 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -169,7 +169,7 @@ int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags, op_modifier |= 0x4; - in_modifier |= ib_slid_cpu16(in_wc->slid) << 16; + in_modifier |= ib_lid_cpu16(in_wc->slid) << 16; } err = mlx4_cmd_box(dev->dev, inmailbox->dma, outmailbox->dma, in_modifier, @@ -625,7 +625,7 @@ int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port, memcpy((char *)&tun_mad->hdr.slid_mac_47_32, &(wc->smac[4]), 2); } else { tun_mad->hdr.sl_vid = cpu_to_be16(((u16)(wc->sl)) << 12); - tun_mad->hdr.slid_mac_47_32 = ib_slid_be16(wc->slid); + tun_mad->hdr.slid_mac_47_32 = ib_lid_be16(wc->slid); } ib_dma_sync_single_for_device(&dev->ib_dev, @@ -826,7 +826,7 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, } } - slid = in_wc ? ib_slid_cpu16(in_wc->slid) : be16_to_cpu(IB_LID_PERMISSIVE); + slid = in_wc ? ib_lid_cpu16(in_wc->slid) : be16_to_cpu(IB_LID_PERMISSIVE); if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP && slid == 0) { forward_trap(to_mdev(ibdev), port_num, in_mad); @@ -860,7 +860,7 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, in_mad->mad_hdr.method == IB_MGMT_METHOD_SET && in_mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO && !ib_query_port(ibdev, port_num, &pattr)) - prev_lid = (u16)pattr.lid; + prev_lid = ib_lid_cpu16(pattr.lid); err = mlx4_MAD_IFC(to_mdev(ibdev), (mad_flags & IB_MAD_IGNORE_MKEY ? MLX4_MAD_IFC_IGNORE_MKEY : 0) | diff --git a/drivers/infiniband/hw/mlx5/mad.c b/drivers/infiniband/hw/mlx5/mad.c index cd2264ac88ae..18cfe5bf0fa3 100644 --- a/drivers/infiniband/hw/mlx5/mad.c +++ b/drivers/infiniband/hw/mlx5/mad.c @@ -78,7 +78,7 @@ static int process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, u16 slid; int err; - slid = in_wc ? ib_slid_cpu16(in_wc->slid) : be16_to_cpu(IB_LID_PERMISSIVE); + slid = in_wc ? ib_lid_cpu16(in_wc->slid) : be16_to_cpu(IB_LID_PERMISSIVE); if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP && slid == 0) return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c index e19ae0b9b439..d0f062fc2a4b 100644 --- a/drivers/infiniband/hw/mthca/mthca_cmd.c +++ b/drivers/infiniband/hw/mthca/mthca_cmd.c @@ -1921,7 +1921,7 @@ int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey, (in_wc->wc_flags & IB_WC_GRH ? 0x80 : 0); MTHCA_PUT(inbox, val, MAD_IFC_G_PATH_OFFSET); - MTHCA_PUT(inbox, ib_slid_cpu16(in_wc->slid), MAD_IFC_RLID_OFFSET); + MTHCA_PUT(inbox, ib_lid_cpu16(in_wc->slid), MAD_IFC_RLID_OFFSET); MTHCA_PUT(inbox, in_wc->pkey_index, MAD_IFC_PKEY_OFFSET); if (in_grh) @@ -1929,7 +1929,7 @@ int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey, op_modifier |= 0x4; - in_modifier |= ib_slid_cpu16(in_wc->slid) << 16; + in_modifier |= ib_lid_cpu16(in_wc->slid) << 16; } err = mthca_cmd_box(dev, inmailbox->dma, outmailbox->dma, diff --git a/drivers/infiniband/hw/mthca/mthca_mad.c b/drivers/infiniband/hw/mthca/mthca_mad.c index a9caadab22cf..093f7755c843 100644 --- a/drivers/infiniband/hw/mthca/mthca_mad.c +++ b/drivers/infiniband/hw/mthca/mthca_mad.c @@ -205,7 +205,7 @@ int mthca_process_mad(struct ib_device *ibdev, u16 *out_mad_pkey_index) { int err; - u16 slid = in_wc ? ib_slid_cpu16(in_wc->slid) : be16_to_cpu(IB_LID_PERMISSIVE); + u16 slid = in_wc ? ib_lid_cpu16(in_wc->slid) : be16_to_cpu(IB_LID_PERMISSIVE); u16 prev_lid = 0; struct ib_port_attr pattr; const struct ib_mad *in_mad = (const struct ib_mad *)in; @@ -256,7 +256,7 @@ int mthca_process_mad(struct ib_device *ibdev, in_mad->mad_hdr.method == IB_MGMT_METHOD_SET && in_mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO && !ib_query_port(ibdev, port_num, &pattr)) - prev_lid = (u16)pattr.lid; + prev_lid = ib_lid_cpu16(pattr.lid); err = mthca_MAD_IFC(to_mdev(ibdev), mad_flags & IB_MAD_IGNORE_MKEY, diff --git a/drivers/infiniband/sw/rdmavt/cq.c b/drivers/infiniband/sw/rdmavt/cq.c index 0335a3df74d5..97d71e49c092 100644 --- a/drivers/infiniband/sw/rdmavt/cq.c +++ b/drivers/infiniband/sw/rdmavt/cq.c @@ -107,7 +107,7 @@ void rvt_cq_enter(struct rvt_cq *cq, struct ib_wc *entry, bool solicited) wc->uqueue[head].src_qp = entry->src_qp; wc->uqueue[head].wc_flags = entry->wc_flags; wc->uqueue[head].pkey_index = entry->pkey_index; - wc->uqueue[head].slid = ib_slid_cpu16(entry->slid); + wc->uqueue[head].slid = ib_lid_cpu16(entry->slid); wc->uqueue[head].sl = entry->sl; wc->uqueue[head].dlid_path_bits = entry->dlid_path_bits; wc->uqueue[head].port_num = entry->port_num; diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 4db4ad56ace6..70a183179224 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -3724,16 +3724,30 @@ static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev, return RDMA_AH_ATTR_TYPE_IB; } -/* Return slid in 16bit CPU encoding */ -static inline u16 ib_slid_cpu16(u32 slid) +/** + * ib_lid_cpu16 - Return lid in 16bit CPU encoding. + * In the current implementation the only way to get + * get the 32bit lid is from other sources for OPA. + * For IB, lids will always be 16bits so cast the + * value accordingly. + * + * @lid: A 32bit LID + */ +static inline u16 ib_lid_cpu16(u32 lid) { - return (u16)slid; + WARN_ON_ONCE(lid & 0xFFFF0000); + return (u16)lid; } -/* Return slid in 16bit BE encoding */ -static inline u16 ib_slid_be16(u32 slid) +/** + * ib_lid_be16 - Return lid in 16bit BE encoding. + * + * @lid: A 32bit LID + */ +static inline __be16 ib_lid_be16(u32 lid) { - return cpu_to_be16((u16)slid); + WARN_ON_ONCE(lid & 0xFFFF0000); + return cpu_to_be16((u16)lid); } /**