Re: [openib-general] [PATCH 04/22] OF adapter probing

From: Heiko J Schick
Date: Sat Feb 18 2006 - 07:46:41 EST

Hello Roland,

sorry, this file is not used anymore. The functions

int hipz_count_adapters(void);
int hipz_probe_adapters(char **adapter_list);
u64 hipz_get_adapter_handle(char *adapter);

nowadays handled by the IBMEBUS [1] bus device driver.

[1]: http://www.kernel.org/git/?p=linux/kernel/git/torvalds/ linux-2.6.git;a=commit;h=d7a301033f1990188f65abf4fe8e5b90ef0e3888

Regards,
Heiko

On Feb 18, 2006, at 1:57 AM, Roland Dreier wrote:

From: Roland Dreier <rolandd@xxxxxxxxx>

hipz_probe_adapters() looks a little funny -- it seems to bail out
of all the remaining adapters if one of them isn't quite right.
---

drivers/infiniband/hw/ehca/hcp_sense.c | 144 +++++++++++++++++++++ +++++++++++
drivers/infiniband/hw/ehca/hcp_sense.h | 136 +++++++++++++++++++++ +++++++++
2 files changed, 280 insertions(+), 0 deletions(-)

diff --git a/drivers/infiniband/hw/ehca/hcp_sense.c b/drivers/ infiniband/hw/ehca/hcp_sense.c
new file mode 100644
index 0000000..83fa4a3
--- /dev/null
+++ b/drivers/infiniband/hw/ehca/hcp_sense.c
@@ -0,0 +1,144 @@
+/*
+ * IBM eServer eHCA Infiniband device driver for Linux on POWER
+ *
+ * ehca detection and query code for POWER
+ *
+ * Authors: Heiko J Schick <schickhj@xxxxxxxxxx>
+ *
+ * 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.
+ *
+ * $Id: hcp_sense.c,v 1.10 2006/02/06 10:17:34 schickhj Exp $
+ */
+
+#define DEB_PREFIX "snse"
+
+#include "ehca_kernel.h"
+#include "ehca_tools.h"
+
+int hipz_count_adapters(void)
+{
+ int num = 0;
+ struct device_node *dn = NULL;
+
+ EDEB_EN(7, "");
+
+ while ((dn = of_find_node_by_name(dn, "lhca"))) {
+ num++;
+ }
+
+ of_node_put(dn);
+
+ if (num == 0) {
+ EDEB_ERR(4, "No lhca node name was found in the"
+ " Open Firmware device tree.");
+ return -ENODEV;
+ }
+
+ EDEB(6, " ... found %x adapter(s)", num);
+
+ EDEB_EX(7, "num=%x", num);
+
+ return num;
+}
+
+int hipz_probe_adapters(char **adapter_list)
+{
+ int ret = 0;
+ int num = 0;
+ struct device_node *dn = NULL;
+ char *loc;
+
+ EDEB_EN(7, "adapter_list=%p", adapter_list);
+
+ while ((dn = of_find_node_by_name(dn, "lhca"))) {
+ loc = get_property(dn, "ibm,loc-code", NULL);
+ if (loc == NULL) {
+ EDEB_ERR(4, "No ibm,loc-code property for"
+ " lhca Open Firmware device tree node.");
+ ret = -ENODEV;
+ goto probe_adapters0;
+ }
+
+ adapter_list[num] = loc;
+ EDEB(6, " ... found adapter[%x] with loc-code: %s", num, loc);
+ num++;
+ }
+
+ probe_adapters0:
+ of_node_put(dn);
+
+ EDEB_EX(7, "ret=%x", ret);
+
+ return ret;
+}
+
+u64 hipz_get_adapter_handle(char *adapter)
+{
+ struct device_node *dn = NULL;
+ char *loc;
+ u64 *u64data = NULL;
+ u64 ret = 0;
+
+ EDEB_EN(7, "adapter=%p", adapter);
+
+ while ((dn = of_find_node_by_name(dn, "lhca"))) {
+ loc = get_property(dn, "ibm,loc-code", NULL);
+ if (loc == NULL) {
+ EDEB_ERR(4, "No ibm,loc-code property for"
+ " lhca Open Firmware device tree node.");
+ goto get_adapter_handle0;
+ }
+
+ if (strcmp(loc, adapter) == 0) {
+ u64data =
+ (u64 *) get_property(dn, "ibm,hca-handle", NULL);
+ break;
+ }
+ }
+
+ if (u64data == NULL) {
+ EDEB_ERR(4, "No ibm,hca-handle property for"
+ " lhca Open Firmware device tree node with"
+ " ibm,loc-code: %s.", adapter);
+ goto get_adapter_handle0;
+ }
+
+ ret = *u64data;
+
+ get_adapter_handle0:
+ of_node_put(dn);
+
+ EDEB_EX(7, "ret=%lx",ret);
+
+ return ret;
+}
diff --git a/drivers/infiniband/hw/ehca/hcp_sense.h b/drivers/ infiniband/hw/ehca/hcp_sense.h
new file mode 100644
index 0000000..a49040b
--- /dev/null
+++ b/drivers/infiniband/hw/ehca/hcp_sense.h
@@ -0,0 +1,136 @@
+/*
+ * IBM eServer eHCA Infiniband device driver for Linux on POWER
+ *
+ * ehca detection and query code for POWER
+ *
+ * Authors: Heiko J Schick <schickhj@xxxxxxxxxx>
+ *
+ * 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.
+ *
+ * $Id: hcp_sense.h,v 1.11 2006/02/06 10:17:34 schickhj Exp $
+ */
+
+#ifndef HCP_SENSE_H
+#define HCP_SENSE_H
+
+int hipz_count_adapters(void);
+int hipz_probe_adapters(char **adapter_list);
+u64 hipz_get_adapter_handle(char *adapter);
+
+/* query hca response block */
+struct query_hca_rblock {
+ u32 cur_reliable_dg;
+ u32 cur_qp;
+ u32 cur_cq;
+ u32 cur_eq;
+ u32 cur_mr;
+ u32 cur_mw;
+ u32 cur_ee_context;
+ u32 cur_mcast_grp;
+ u32 cur_qp_attached_mcast_grp;
+ u32 reserved1;
+ u32 cur_ipv6_qp;
+ u32 cur_eth_qp;
+ u32 cur_hp_mr;
+ u32 reserved2[3];
+ u32 max_rd_domain;
+ u32 max_qp;
+ u32 max_cq;
+ u32 max_eq;
+ u32 max_mr;
+ u32 max_hp_mr;
+ u32 max_mw;
+ u32 max_mrwpte;
+ u32 max_special_mrwpte;
+ u32 max_rd_ee_context;
+ u32 max_mcast_grp;
+ u32 max_qps_attached_all_mcast_grp;
+ u32 max_qps_attached_mcast_grp;
+ u32 max_raw_ipv6_qp;
+ u32 max_raw_ethy_qp;
+ u32 internal_clock_frequency;
+ u32 max_pd;
+ u32 max_ah;
+ u32 max_cqe;
+ u32 max_wqes_wq;
+ u32 max_partitions;
+ u32 max_rr_ee_context;
+ u32 max_rr_qp;
+ u32 max_rr_hca;
+ u32 max_act_wqs_ee_context;
+ u32 max_act_wqs_qp;
+ u32 max_sge;
+ u32 max_sge_rd;
+ u32 memory_page_size_supported;
+ u64 max_mr_size;
+ u32 local_ca_ack_delay;
+ u32 num_ports;
+ u32 vendor_id;
+ u32 vendor_part_id;
+ u32 hw_ver;
+ u64 node_guid;
+ u64 hca_cap_indicators;
+ u32 data_counter_register_size;
+ u32 max_shared_rq;
+ u32 max_isns_eq;
+ u32 max_neq;
+} __attribute__ ((packed));
+
+/* query port response block */
+struct query_port_rblock {
+ u32 state;
+ u32 bad_pkey_cntr;
+ u32 lmc;
+ u32 lid;
+ u32 subnet_timeout;
+ u32 qkey_viol_cntr;
+ u32 sm_sl;
+ u32 sm_lid;
+ u32 capability_mask;
+ u32 init_type_reply;
+ u32 pkey_tbl_len;
+ u32 gid_tbl_len;
+ u64 gid_prefix;
+ u32 port_nr;
+ u16 pkey_entries[16];
+ u8 reserved1[32];
+ u32 trent_size;
+ u32 trbuf_size;
+ u64 max_msg_sz;
+ u32 max_mtu;
+ u32 vl_cap;
+ u8 reserved2[1900];
+ u64 guid_entries[255];
+} __attribute__ ((packed));
+
+#endif
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