| /openbmc/qemu/migration/ |
| H A D | rdma.c | 2 * RDMA protocol and interfaces
21 #include "rdma.h"
37 #include <rdma/rdma_cma.h>
85 * The last two bit ranges are only used for RDMA writes,
102 * RDMA migration protocol:
103 * 1. RDMA Writes (data messages, i.e. RAM)
114 * Work request IDs for IB SEND messages only (not RDMA writes).
148 * This is *not* used for RDMA writes, only IB Send/Recv.
158 * Negotiate RDMA capabilities during connection-setup time.
178 * Representation of a RAMBlock from an RDMA perspective.
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| /openbmc/linux/net/9p/ |
| H A D | trans_rdma.c | 3 * RDMA transport layer based on the trans_fd.c implementation.
32 #include <rdma/ib_verbs.h>
33 #include <rdma/rdma_cm.h>
46 * struct p9_trans_rdma - RDMA transport instance
49 * @cm_id: The RDMA CM ID
152 struct p9_trans_rdma *rdma = clnt->trans; in p9_rdma_show_options() local
154 if (rdma->port != P9_PORT) in p9_rdma_show_options()
155 seq_printf(m, ",port=%u", rdma->port); in p9_rdma_show_options()
156 if (rdma->sq_depth != P9_RDMA_SQ_DEPTH) in p9_rdma_show_options()
157 seq_printf(m, ",sq=%u", rdma->sq_depth); in p9_rdma_show_options()
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| /openbmc/linux/Documentation/admin-guide/cgroup-v1/ |
| H A D | rdma.rst | 2 RDMA Controller
8 1-1. What is RDMA controller?
9 1-2. Why RDMA controller needed?
10 1-3. How is RDMA controller implemented?
16 1-1. What is RDMA controller?
19 RDMA controller allows user to limit RDMA/IB specific resources that a given
20 set of processes can use. These processes are grouped using RDMA controller.
22 RDMA controller defines two resources which can be limited for processes of a
25 1-2. Why RDMA controller needed?
28 Currently user space applications can easily take away all the rdma verb
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| /openbmc/linux/drivers/gpu/drm/mediatek/ |
| H A D | mtk_disp_rdma.c | 52 #define RDMA_FIFO_SIZE(rdma) ((rdma)->data->fifo_size) argument
109 struct mtk_disp_rdma *rdma = dev_get_drvdata(dev); in rdma_update_bits() local
110 unsigned int tmp = readl(rdma->regs + reg); in rdma_update_bits()
113 writel(tmp, rdma->regs + reg); in rdma_update_bits()
120 struct mtk_disp_rdma *rdma = dev_get_drvdata(dev); in mtk_rdma_register_vblank_cb() local
122 rdma->vblank_cb = vblank_cb; in mtk_rdma_register_vblank_cb()
123 rdma->vblank_cb_data = vblank_cb_data; in mtk_rdma_register_vblank_cb()
128 struct mtk_disp_rdma *rdma = dev_get_drvdata(dev); in mtk_rdma_unregister_vblank_cb() local
130 rdma->vblank_cb = NULL; in mtk_rdma_unregister_vblank_cb()
131 rdma->vblank_cb_data = NULL; in mtk_rdma_unregister_vblank_cb()
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| /openbmc/linux/Documentation/devicetree/bindings/display/mediatek/ |
| H A D | mediatek,rdma.yaml | 4 $id: http://devicetree.org/schemas/display/mediatek/mediatek,rdma.yaml#
14 Mediatek Read Direct Memory Access(RDMA) component used to read the
18 RDMA device node must be siblings to the central MMSYS_CONFIG node.
27 - mediatek,mt2701-disp-rdma
28 - mediatek,mt8173-disp-rdma
29 - mediatek,mt8183-disp-rdma
30 - mediatek,mt8195-disp-rdma
33 - mediatek,mt8188-disp-rdma
34 - const: mediatek,mt8195-disp-rdma
37 - mediatek,mt7623-disp-rdma
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| H A D | mediatek,mdp-rdma.yaml | 4 $id: http://devicetree.org/schemas/display/mediatek/mediatek,mdp-rdma.yaml#
7 title: MediaTek MDP RDMA
14 The MediaTek MDP RDMA stands for Read Direct Memory Access.
18 RDMA device node must be siblings to the central MMSYS_CONFIG node.
24 const: mediatek,mt8195-vdo1-rdma
37 - description: RDMA Clock
79 rdma@1c104000 {
80 compatible = "mediatek,mt8195-vdo1-rdma";
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| /openbmc/linux/drivers/gpu/drm/meson/ |
| H A D | meson_rdma.c | 19 * by the VSYNC irq and does not handle the RDMA irq.
26 if (!priv->rdma.addr) { in meson_rdma_init()
28 priv->rdma.addr = in meson_rdma_init()
30 &priv->rdma.addr_dma, in meson_rdma_init()
32 if (!priv->rdma.addr) in meson_rdma_init()
36 priv->rdma.offset = 0; in meson_rdma_init()
50 if (!priv->rdma.addr && !priv->rdma.addr_dma) in meson_rdma_free()
56 priv->rdma.addr, priv->rdma.addr_dma); in meson_rdma_free()
58 priv->rdma.addr = NULL; in meson_rdma_free()
59 priv->rdma.addr_dma = (dma_addr_t)0; in meson_rdma_free()
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| /openbmc/linux/Documentation/admin-guide/nfs/ |
| H A D | nfs-rdma.rst | 2 Setting up NFS/RDMA
14 This document describes how to install and setup the Linux NFS/RDMA client
17 The NFS/RDMA client was first included in Linux 2.6.24. The NFS/RDMA server
23 RDMA adapters.
29 nfs-rdma-devel@lists.sourceforge.net mailing list.
35 use with NFS/RDMA.
37 - Install an RDMA device
46 The first kernel release to contain both the NFS/RDMA client and server was
55 An NFS/RDMA mount point can be obtained by using the mount.nfs command in
57 version with support for NFS/RDMA mounts, but for various reasons we
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| /openbmc/linux/net/sunrpc/xprtrdma/ |
| H A D | svc_rdma_sendto.c | 51 * XDR-encoded RPC Reply message. sendto must construct the RPC-over-RDMA
105 #include <rdma/ib_verbs.h>
106 #include <rdma/rdma_cm.h>
116 static void svc_rdma_send_cid_init(struct svcxprt_rdma *rdma, in svc_rdma_send_cid_init() argument
119 cid->ci_queue_id = rdma->sc_sq_cq->res.id; in svc_rdma_send_cid_init()
120 cid->ci_completion_id = atomic_inc_return(&rdma->sc_completion_ids); in svc_rdma_send_cid_init()
124 svc_rdma_send_ctxt_alloc(struct svcxprt_rdma *rdma) in svc_rdma_send_ctxt_alloc() argument
126 int node = ibdev_to_node(rdma->sc_cm_id->device); in svc_rdma_send_ctxt_alloc()
132 ctxt = kmalloc_node(struct_size(ctxt, sc_sges, rdma->sc_max_send_sges), in svc_rdma_send_ctxt_alloc()
136 buffer = kmalloc_node(rdma->sc_max_req_size, GFP_KERNEL, node); in svc_rdma_send_ctxt_alloc()
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| H A D | svc_rdma_rw.c | 5 * Use the core R/W API to move RPC-over-RDMA Read and Write chunks.
8 #include <rdma/rw.h>
20 /* Each R/W context contains state for one chain of RDMA Read or
27 * Each WR chain handles only one R_key. Each RPC-over-RDMA segment
54 svc_rdma_get_rw_ctxt(struct svcxprt_rdma *rdma, unsigned int sges) in svc_rdma_get_rw_ctxt() argument
59 spin_lock(&rdma->sc_rw_ctxt_lock); in svc_rdma_get_rw_ctxt()
60 node = llist_del_first(&rdma->sc_rw_ctxts); in svc_rdma_get_rw_ctxt()
61 spin_unlock(&rdma->sc_rw_ctxt_lock); in svc_rdma_get_rw_ctxt()
66 GFP_KERNEL, ibdev_to_node(rdma->sc_cm_id->device)); in svc_rdma_get_rw_ctxt()
83 trace_svcrdma_no_rwctx_err(rdma, sges); in svc_rdma_get_rw_ctxt()
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| H A D | svc_rdma_recvfrom.c | 49 * be read. "Data Ready" is signaled when an RDMA Receive completes,
50 * or when a set of RDMA Reads complete.
61 * svc_rdma_recvfrom must post RDMA Reads to pull the RPC Call's
63 * RDMA Reads using pages in svc_rqst::rq_pages, which are
76 * of the RPC Call message, using the RDMA Read sink pages kept in
86 * The first svc_rqst supplies pages for RDMA Reads. These are moved
91 * During the second svc_rdma_recvfrom call, RDMA Read sink pages
98 #include <rdma/ib_verbs.h>
99 #include <rdma/rdma_cm.h>
118 static void svc_rdma_recv_cid_init(struct svcxprt_rdma *rdma, in svc_rdma_recv_cid_init() argument
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| H A D | svc_rdma_transport.c | 52 #include <rdma/ib_verbs.h>
53 #include <rdma/rdma_cm.h>
54 #include <rdma/rw.h>
92 .xcl_name = "rdma",
150 * paragraph 2). For now, we assume that all supported RDMA in svc_rdma_create_xprt()
272 struct svcxprt_rdma *rdma = cma_id->context; in svc_rdma_cma_handler() local
273 struct svc_xprt *xprt = &rdma->sc_xprt; in svc_rdma_cma_handler()
277 clear_bit(RDMAXPRT_CONN_PENDING, &rdma->sc_flags); in svc_rdma_cma_handler()
294 * Create a listening RDMA service endpoint.
479 /* Construct RDMA-CM private message */ in svc_rdma_accept()
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| H A D | svc_rdma_backchannel.c | 5 * Support for reverse-direction RPCs on RPC/RDMA (server-side).
65 * the RPC/RDMA request.
75 static int svc_rdma_bc_sendto(struct svcxprt_rdma *rdma, in svc_rdma_bc_sendto() argument
82 rctxt = svc_rdma_recv_ctxt_get(rdma); in svc_rdma_bc_sendto()
86 ret = svc_rdma_map_reply_msg(rdma, sctxt, rctxt, &rqst->rq_snd_buf); in svc_rdma_bc_sendto()
87 svc_rdma_recv_ctxt_put(rdma, rctxt); in svc_rdma_bc_sendto()
96 return svc_rdma_send(rdma, sctxt); in svc_rdma_bc_sendto()
139 rpcrdma_bc_send_request(struct svcxprt_rdma *rdma, struct rpc_rqst *rqst) in rpcrdma_bc_send_request() argument
147 ctxt = svc_rdma_send_ctxt_get(rdma); in rpcrdma_bc_send_request()
163 rc = svc_rdma_bc_sendto(rdma, rqst, ctxt); in rpcrdma_bc_send_request()
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| /openbmc/linux/include/linux/sunrpc/ |
| H A D | rpc_rdma.h | 66 * Smallest RPC/RDMA header: rm_xid through rm_type, then rm_nochunks
81 RDMA_ERROR = 4 /* An RPC RDMA encoding error */
94 * Private extension to RPC-over-RDMA Version One.
95 * Message passed during RDMA-CM connection set-up.
128 * xdr_encode_rdma_segment - Encode contents of an RDMA segment
130 * @handle: The RDMA handle to encode
131 * @length: The RDMA length to encode
132 * @offset: The RDMA offset to encode
135 * Pointer to the XDR position that follows the encoded RDMA segment
149 * @handle: The RDMA handle to encode
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| H A D | svc_rdma.h | 53 #include <rdma/ib_verbs.h>
54 #include <rdma/rdma_cm.h>
63 /* RPC/RDMA parameters and stats */
76 struct rdma_cm_id *sc_cm_id; /* RDMA connection id */
78 int sc_ord; /* RDMA read limit */
171 extern void svc_rdma_recv_ctxts_destroy(struct svcxprt_rdma *rdma);
172 extern bool svc_rdma_post_recvs(struct svcxprt_rdma *rdma);
174 svc_rdma_recv_ctxt_get(struct svcxprt_rdma *rdma);
175 extern void svc_rdma_recv_ctxt_put(struct svcxprt_rdma *rdma,
177 extern void svc_rdma_flush_recv_queues(struct svcxprt_rdma *rdma);
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| /openbmc/qemu/docs/ |
| H A D | rdma.txt | 1 (RDMA: Remote Direct Memory Access)
2 RDMA Live Migration Specification, Version # 1
5 Github: git@github.com:hinesmr/qemu.git, 'rdma' branch
18 * RDMA Migration Protocol Description
28 RDMA helps make your migration more deterministic under heavy load because
30 because the RDMA I/O architecture reduces the number of interrupts and
37 RDMA currently comes in two flavors: both Ethernet based (RoCE, or RDMA
39 migration using RDMA is capable of using both technologies because of
43 Refer to openfabrics.org or your respective RDMA hardware vendor for
47 for a working build of QEMU to run successfully using RDMA Migration.
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| /openbmc/linux/Documentation/ABI/stable/ |
| H A D | sysfs-driver-ib_srp | 4 Contact: linux-rdma@vger.kernel.org
47 communicated from initiator to target via an additional RDMA
59 MSI-X completion vector of the first RDMA channel. Some
77 Contact: linux-rdma@vger.kernel.org
83 Contact: linux-rdma@vger.kernel.org
89 Contact: linux-rdma@vger.kernel.org
97 Contact: linux-rdma@vger.kernel.org
98 Description: Number of RDMA channels used for communication with the SRP
104 Contact: linux-rdma@vger.kernel.org
111 Contact: linux-rdma@vger.kernel.org
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| /openbmc/linux/include/rdma/ |
| H A D | rdma_cm.h | 12 #include <rdma/ib_addr.h>
13 #include <rdma/ib_sa.h>
14 #include <uapi/rdma/rdma_user_cm.h>
18 * RDMA identifier and release all resources allocated with the device.
134 * rdma_create_id - Create an RDMA identifier.
140 * @ps: RDMA port space.
154 * rdma_destroy_id - Destroys an RDMA identifier.
156 * @id: RDMA identifier.
164 * rdma_bind_addr - Bind an RDMA identifier to a source address and
165 * associated RDMA device, if needed.
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| /openbmc/openbmc/meta-openembedded/meta-networking/recipes-support/rdma-core/ |
| H A D | rdma-core_51.0.bb | 1 SUMMARY = "Userspace support for InfiniBand/RDMA verbs"
2 DESCRIPTION = "This is the userspace components for the Linux Kernel's drivers Infiniband/RDMA subs…
8 SRC_URI = "git://github.com/linux-rdma/rdma-core.git;branch=master;protocol=https \
16 #Default Dual License https://github.com/linux-rdma/rdma-core/blob/master/COPYING.md
40 rdma-load-modules@.service \
42 rdma-hw.target \
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| /openbmc/linux/drivers/infiniband/ |
| H A D | Kconfig | 25 need libibumad from rdma-core
26 <https://github.com/linux-rdma/rdma-core>.
38 rdma-core <https://github.com/linux-rdma/rdma-core>.
61 bool "RDMA/CM"
65 Support for RDMA communication manager (CM).
66 This allows for a generic connection abstraction over RDMA.
73 ConfigFS support for RDMA communication manager (CM).
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| /openbmc/linux/drivers/net/ethernet/intel/ice/ |
| H A D | ice_idc.c | 31 * ice_send_event_to_aux - send event to RDMA AUX driver
56 * ice_add_rdma_qset - Add Leaf Node for RDMA Qset
80 dev_err(dev, "RDMA QSet invalid VSI\n"); in ice_add_rdma_qset()
93 dev_err(dev, "Failed VSI RDMA Qset config\n"); in ice_add_rdma_qset()
100 dev_err(dev, "Failed VSI RDMA Qset enable\n"); in ice_add_rdma_qset()
111 * ice_del_rdma_qset - Delete leaf node for RDMA Qset
126 dev_err(ice_pf_to_dev(pf), "RDMA Invalid VSI\n"); in ice_del_rdma_qset()
140 * ice_rdma_request_reset - accept request from RDMA to perform a reset
171 * ice_rdma_update_vsi_filter - update main VSI filters for RDMA
190 dev_err(ice_pf_to_dev(pf), "Failed to %sable RDMA filtering\n", in ice_rdma_update_vsi_filter()
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| /openbmc/linux/fs/smb/client/ |
| H A D | smbdirect.h | 11 #define cifs_rdma_enabled(server) ((server)->rdma)
14 #include <rdma/ib_verbs.h>
15 #include <rdma/rdma_cm.h>
46 * 1. RDMA related structures
55 /* RDMA related */
92 /* Maximum number of RDMA read/write outstanding on this connection */
94 /* Maximum number of pages in a single RDMA write/read on this connection */
98 * use RDMA send/recv to send upper layer I/O.
100 * use RDMA read/write through memory registration for I/O.
158 /* request pool for RDMA send */
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| /openbmc/linux/drivers/infiniband/ulp/rtrs/ |
| H A D | README | 2 RDMA Transport (RTRS)
5 RTRS (RDMA Transport) is a reliable high speed transport library
7 between client and server machines using RDMA (InfiniBand, RoCE, iWarp)
19 RTRS is used by the RNBD (RDMA Network Block Device) modules.
29 server side for a given client for rdma transfer. A session
49 discussed in LPC RDMA MC 2019. When always_invalidate=Y, on the server side we
50 invalidate each rdma buffer before we hand it over to RNBD server and
89 which contains the addresses and keys of the RDMA buffers allocated for that
95 6. Server and client exchange periodically heartbeat messages (empty rdma
99 7. On any RDMA related error or in the case of a heartbeat timeout, the
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| H A D | Kconfig | 12 RDMA transport client module.
14 RDMA Transport (RTRS) client implements a reliable transport layer
16 the base layer for a block storage initiator over RDMA.
23 RDMA transport server module.
25 RDMA Transport (RTRS) server module processing connection and IO
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| /openbmc/linux/drivers/infiniband/core/ |
| H A D | cgroup.c | 9 * ib_device_register_rdmacg - register with rdma cgroup.
11 * accounting by rdma cgroup.
13 * Register with the rdma cgroup. Should be called before
14 * exposing rdma device to user space applications to avoid
24 * ib_device_unregister_rdmacg - unregister with rdma cgroup.
27 * Unregister with the rdma cgroup. Should be called after
|