^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Copyright(c) 2016 Intel Corporation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * This file is provided under a dual BSD/GPLv2 license. When using or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * redistributing this file, you may do so under either license.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * GPL LICENSE SUMMARY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * it under the terms of version 2 of the GNU General Public License as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * published by the Free Software Foundation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * This program is distributed in the hope that it will be useful, but
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * BSD LICENSE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * Redistribution and use in source and binary forms, with or without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * modification, are permitted provided that the following conditions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * are met:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * - Redistributions of source code must retain the above copyright
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * notice, this list of conditions and the following disclaimer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * - Redistributions in binary form must reproduce the above copyright
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * notice, this list of conditions and the following disclaimer in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * the documentation and/or other materials provided with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * distribution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * - Neither the name of Intel Corporation nor the names of its
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * contributors may be used to endorse or promote products derived
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * from this software without specific prior written permission.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #include <rdma/ib_mad.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #include "mad.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #include "vt.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * rvt_process_mad - process an incoming MAD packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * @ibdev: the infiniband device this packet came in on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * @mad_flags: MAD flags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * @port_num: the port number this packet came in on, 1 based from ib core
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * @in_wc: the work completion entry for this packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * @in_grh: the global route header for this packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * @in_mad: the incoming MAD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * @out_mad: any outgoing MAD reply
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * Note that the verbs framework has already done the MAD sanity checks,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * and hop count/pointer updating for IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * MADs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * This is called by the ib_mad module.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * Return: IB_MAD_RESULT_SUCCESS or error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) int rvt_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) const struct ib_wc *in_wc, const struct ib_grh *in_grh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) const struct ib_mad_hdr *in, size_t in_mad_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct ib_mad_hdr *out, size_t *out_mad_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) u16 *out_mad_pkey_index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * MAD processing is quite different between hfi1 and qib. Therefore
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * this is expected to be provided by the driver. Other drivers in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * future may choose to implement this but it should not be made into a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * requirement.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) if (ibport_num_to_idx(ibdev, port_num) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return IB_MAD_RESULT_FAILURE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static void rvt_send_mad_handler(struct ib_mad_agent *agent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct ib_mad_send_wc *mad_send_wc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) ib_free_send_mad(mad_send_wc->send_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * rvt_create_mad_agents - create mad agents
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * @rdi: rvt dev struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * If driver needs to be notified of mad agent creation then call back
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * Return 0 on success
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) int rvt_create_mad_agents(struct rvt_dev_info *rdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct ib_mad_agent *agent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct rvt_ibport *rvp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) int p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) for (p = 0; p < rdi->dparms.nports; p++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) rvp = rdi->ports[p];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) agent = ib_register_mad_agent(&rdi->ibdev, p + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) IB_QPT_SMI,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) NULL, 0, rvt_send_mad_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) NULL, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) if (IS_ERR(agent)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) ret = PTR_ERR(agent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) rvp->send_agent = agent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) if (rdi->driver_f.notify_create_mad_agent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) rdi->driver_f.notify_create_mad_agent(rdi, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) for (p = 0; p < rdi->dparms.nports; p++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) rvp = rdi->ports[p];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (rvp->send_agent) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) agent = rvp->send_agent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) rvp->send_agent = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) ib_unregister_mad_agent(agent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (rdi->driver_f.notify_free_mad_agent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) rdi->driver_f.notify_free_mad_agent(rdi, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * rvt_free_mad_agents - free up mad agents
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * @rdi: rvt dev struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) * If driver needs notification of mad agent removal make the call back
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) void rvt_free_mad_agents(struct rvt_dev_info *rdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct ib_mad_agent *agent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct rvt_ibport *rvp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) int p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) for (p = 0; p < rdi->dparms.nports; p++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) rvp = rdi->ports[p];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (rvp->send_agent) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) agent = rvp->send_agent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) rvp->send_agent = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) ib_unregister_mad_agent(agent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (rvp->sm_ah) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) rdma_destroy_ah(&rvp->sm_ah->ibah,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) RDMA_DESTROY_AH_SLEEPABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) rvp->sm_ah = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (rdi->driver_f.notify_free_mad_agent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) rdi->driver_f.notify_free_mad_agent(rdi, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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