/* * IBM eServer eHCA Infiniband device driver for Linux on POWER * * HCA query functions * * Authors: Heiko J Schick <schickhj@de.ibm.com> * Christoph Raisch <raisch@de.ibm.com> * * Copyright (c) 2005 IBM Corporation * * All rights reserved. * * This source code is distributed under a dual license of GPL v2.0 and OpenIB * BSD. * * OpenIB BSD License * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials * provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include <linux/gfp.h> #include "ehca_tools.h" #include "ehca_iverbs.h" #include "hcp_if.h" static unsigned int limit_uint(unsigned int value) { return min_t(unsigned int, value, INT_MAX); } int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props) { int i, ret = 0; struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); struct hipz_query_hca *rblock; static const u32 cap_mapping[] = { IB_DEVICE_RESIZE_MAX_WR, HCA_CAP_WQE_RESIZE, IB_DEVICE_BAD_PKEY_CNTR, HCA_CAP_BAD_P_KEY_CTR, IB_DEVICE_BAD_QKEY_CNTR, HCA_CAP_Q_KEY_VIOL_CTR, IB_DEVICE_RAW_MULTI, HCA_CAP_RAW_PACKET_MCAST, IB_DEVICE_AUTO_PATH_MIG, HCA_CAP_AUTO_PATH_MIG, IB_DEVICE_CHANGE_PHY_PORT, HCA_CAP_SQD_RTS_PORT_CHANGE, IB_DEVICE_UD_AV_PORT_ENFORCE, HCA_CAP_AH_PORT_NR_CHECK, IB_DEVICE_CURR_QP_STATE_MOD, HCA_CAP_CUR_QP_STATE_MOD, IB_DEVICE_SHUTDOWN_PORT, HCA_CAP_SHUTDOWN_PORT, IB_DEVICE_INIT_TYPE, HCA_CAP_INIT_TYPE, IB_DEVICE_PORT_ACTIVE_EVENT, HCA_CAP_PORT_ACTIVE_EVENT, }; rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); if (!rblock) { ehca_err(&shca->ib_device, "Can't allocate rblock memory."); return -ENOMEM; } if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query device properties"); ret = -EINVAL; goto query_device1; } memset(props, 0, sizeof(struct ib_device_attr)); props->page_size_cap = shca->hca_cap_mr_pgsize; props->fw_ver = rblock->hw_ver; props->max_mr_size = rblock->max_mr_size; props->vendor_id = rblock->vendor_id >> 8; props->vendor_part_id = rblock->vendor_part_id >> 16; props->hw_ver = rblock->hw_ver; props->max_qp = limit_uint(rblock->max_qp); props->max_qp_wr = limit_uint(rblock->max_wqes_wq); props->max_sge = limit_uint(rblock->max_sge); props->max_sge_rd = limit_uint(rblock->max_sge_rd); props->max_cq = limit_uint(rblock->max_cq); props->max_cqe = limit_uint(rblock->max_cqe); props->max_mr = limit_uint(rblock->max_mr); props->max_mw = limit_uint(rblock->max_mw); props->max_pd = limit_uint(rblock->max_pd); props->max_ah = limit_uint(rblock->max_ah); props->max_ee = limit_uint(rblock->max_rd_ee_context); props->max_rdd = limit_uint(rblock->max_rd_domain); props->max_fmr = limit_uint(rblock->max_mr); props->max_qp_rd_atom = limit_uint(rblock->max_rr_qp); props->max_ee_rd_atom = limit_uint(rblock->max_rr_ee_context); props->max_res_rd_atom = limit_uint(rblock->max_rr_hca); props->max_qp_init_rd_atom = limit_uint(rblock->max_act_wqs_qp); props->max_ee_init_rd_atom = limit_uint(rblock->max_act_wqs_ee_context); if (EHCA_BMASK_GET(HCA_CAP_SRQ, shca->hca_cap)) { props->max_srq = limit_uint(props->max_qp); props->max_srq_wr = limit_uint(props->max_qp_wr); props->max_srq_sge = 3; } props->max_pkeys = 16; /* Some FW versions say 0 here; insert sensible value in that case */ props->local_ca_ack_delay = rblock->local_ca_ack_delay ? min_t(u8, rblock->local_ca_ack_delay, 255) : 12; props->max_raw_ipv6_qp = limit_uint(rblock->max_raw_ipv6_qp); props->max_raw_ethy_qp = limit_uint(rblock->max_raw_ethy_qp); props->max_mcast_grp = limit_uint(rblock->max_mcast_grp); props->max_mcast_qp_attach = limit_uint(rblock->max_mcast_qp_attach); props->max_total_mcast_qp_attach = limit_uint(rblock->max_total_mcast_qp_attach); /* translate device capabilities */ props->device_cap_flags = IB_DEVICE_SYS_IMAGE_GUID | IB_DEVICE_RC_RNR_NAK_GEN | IB_DEVICE_N_NOTIFY_CQ; for (i = 0; i < ARRAY_SIZE(cap_mapping); i += 2) if (rblock->hca_cap_indicators & cap_mapping[i + 1]) props->device_cap_flags |= cap_mapping[i]; query_device1: ehca_free_fw_ctrlblock(rblock); return ret; } static enum ib_mtu map_mtu(struct ehca_shca *shca, u32 fw_mtu) { switch (fw_mtu) { case 0x1: return IB_MTU_256; case 0x2: return IB_MTU_512; case 0x3: return IB_MTU_1024; case 0x4: return IB_MTU_2048; case 0x5: return IB_MTU_4096; default: ehca_err(&shca->ib_device, "Unknown MTU size: %x.", fw_mtu); return 0; } } static u8 map_number_of_vls(struct ehca_shca *shca, u32 vl_cap) { switch (vl_cap) { case 0x1: return 1; case 0x2: return 2; case 0x3: return 4; case 0x4: return 8; case 0x5: return 15; default: ehca_err(&shca->ib_device, "invalid Vl Capability: %x.", vl_cap); return 0; } } int ehca_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props) { int ret = 0; u64 h_ret; struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); struct hipz_query_port *rblock; rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); if (!rblock) { ehca_err(&shca->ib_device, "Can't allocate rblock memory."); return -ENOMEM; } h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_port1; } memset(props, 0, sizeof(struct ib_port_attr)); props->active_mtu = props->max_mtu = map_mtu(shca, rblock->max_mtu); props->port_cap_flags = rblock->capability_mask; props->gid_tbl_len = rblock->gid_tbl_len; if (rblock->max_msg_sz) props->max_msg_sz = rblock->max_msg_sz; else props->max_msg_sz = 0x1 << 31; props->bad_pkey_cntr = rblock->bad_pkey_cntr; props->qkey_viol_cntr = rblock->qkey_viol_cntr; props->pkey_tbl_len = rblock->pkey_tbl_len; props->lid = rblock->lid; props->sm_lid = rblock->sm_lid; props->lmc = rblock->lmc; props->sm_sl = rblock->sm_sl; props->subnet_timeout = rblock->subnet_timeout; props->init_type_reply = rblock->init_type_reply; props->max_vl_num = map_number_of_vls(shca, rblock->vl_cap); if (rblock->state && rblock->phys_width) { props->phys_state = rblock->phys_pstate; props->state = rblock->phys_state; props->active_width = rblock->phys_width; props->active_speed = rblock->phys_speed; } else { /* old firmware releases don't report physical * port info, so use default values */ props->phys_state = 5; props->state = rblock->state; props->active_width = IB_WIDTH_12X; props->active_speed = 0x1; } query_port1: ehca_free_fw_ctrlblock(rblock); return ret; } int ehca_query_sma_attr(struct ehca_shca *shca, u8 port, struct ehca_sma_attr *attr) { int ret = 0; u64 h_ret; struct hipz_query_port *rblock; rblock = ehca_alloc_fw_ctrlblock(GFP_ATOMIC); if (!rblock) { ehca_err(&shca->ib_device, "Can't allocate rblock memory."); return -ENOMEM; } h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_sma_attr1; } memset(attr, 0, sizeof(struct ehca_sma_attr)); attr->lid = rblock->lid; attr->lmc = rblock->lmc; attr->sm_sl = rblock->sm_sl; attr->sm_lid = rblock->sm_lid; attr->pkey_tbl_len = rblock->pkey_tbl_len; memcpy(attr->pkeys, rblock->pkey_entries, sizeof(attr->pkeys)); query_sma_attr1: ehca_free_fw_ctrlblock(rblock); return ret; } int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) { int ret = 0; u64 h_ret; struct ehca_shca *shca; struct hipz_query_port *rblock; shca = container_of(ibdev, struct ehca_shca, ib_device); if (index > 16) { ehca_err(&shca->ib_device, "Invalid index: %x.", index); return -EINVAL; } rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); if (!rblock) { ehca_err(&shca->ib_device, "Can't allocate rblock memory."); return -ENOMEM; } h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_pkey1; } memcpy(pkey, &rblock->pkey_entries + index, sizeof(u16)); query_pkey1: ehca_free_fw_ctrlblock(rblock); return ret; } int ehca_query_gid(struct ib_device *ibdev, u8 port, int index, union ib_gid *gid) { int ret = 0; u64 h_ret; struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); struct hipz_query_port *rblock; if (index < 0 || index > 255) { ehca_err(&shca->ib_device, "Invalid index: %x.", index); return -EINVAL; } rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); if (!rblock) { ehca_err(&shca->ib_device, "Can't allocate rblock memory."); return -ENOMEM; } h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_gid1; } memcpy(&gid->raw[0], &rblock->gid_prefix, sizeof(u64)); memcpy(&gid->raw[8], &rblock->guid_entries[index], sizeof(u64)); query_gid1: ehca_free_fw_ctrlblock(rblock); return ret; } static const u32 allowed_port_caps = ( IB_PORT_SM | IB_PORT_LED_INFO_SUP | IB_PORT_CM_SUP | IB_PORT_SNMP_TUNNEL_SUP | IB_PORT_DEVICE_MGMT_SUP | IB_PORT_VENDOR_CLASS_SUP); int ehca_modify_port(struct ib_device *ibdev, u8 port, int port_modify_mask, struct ib_port_modify *props) { int ret = 0; struct ehca_shca *shca; struct hipz_query_port *rblock; u32 cap; u64 hret; shca = container_of(ibdev, struct ehca_shca, ib_device); if ((props->set_port_cap_mask | props->clr_port_cap_mask) & ~allowed_port_caps) { ehca_err(&shca->ib_device, "Non-changeable bits set in masks " "set=%x clr=%x allowed=%x", props->set_port_cap_mask, props->clr_port_cap_mask, allowed_port_caps); return -EINVAL; } if (mutex_lock_interruptible(&shca->modify_mutex)) return -ERESTARTSYS; rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); if (!rblock) { ehca_err(&shca->ib_device, "Can't allocate rblock memory."); ret = -ENOMEM; goto modify_port1; } hret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); if (hret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto modify_port2; } cap = (rblock->capability_mask | props->set_port_cap_mask) & ~props->clr_port_cap_mask; hret = hipz_h_modify_port(shca->ipz_hca_handle, port, cap, props->init_type, port_modify_mask); if (hret != H_SUCCESS) { ehca_err(&shca->ib_device, "Modify port failed h_ret=%lli", hret); ret = -EINVAL; } modify_port2: ehca_free_fw_ctrlblock(rblock); modify_port1: mutex_unlock(&shca->modify_mutex); return ret; }