| /kernel/linux/linux-5.10/net/9p/ |
| D | trans_rdma.c | 5 * RDMA transport layer based on the trans_fd.c implementation.
35 #include <rdma/ib_verbs.h>
36 #include <rdma/rdma_cm.h>
49 * struct p9_trans_rdma - RDMA transport instance
52 * @cm_id: The RDMA CM ID
153 struct p9_trans_rdma *rdma = clnt->trans; in p9_rdma_show_options() local
155 if (rdma->port != P9_PORT) in p9_rdma_show_options()
156 seq_printf(m, ",port=%u", rdma->port); in p9_rdma_show_options()
157 if (rdma->sq_depth != P9_RDMA_SQ_DEPTH) in p9_rdma_show_options()
158 seq_printf(m, ",sq=%u", rdma->sq_depth); in p9_rdma_show_options()
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| /kernel/linux/linux-5.10/Documentation/admin-guide/cgroup-v1/ |
| 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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| /kernel/linux/linux-5.10/net/sunrpc/xprtrdma/ |
| 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
53 svc_rdma_get_rw_ctxt(struct svcxprt_rdma *rdma, unsigned int sges) in svc_rdma_get_rw_ctxt() argument
57 spin_lock(&rdma->sc_rw_ctxt_lock); in svc_rdma_get_rw_ctxt()
59 ctxt = svc_rdma_next_ctxt(&rdma->sc_rw_ctxts); in svc_rdma_get_rw_ctxt()
62 spin_unlock(&rdma->sc_rw_ctxt_lock); in svc_rdma_get_rw_ctxt()
64 spin_unlock(&rdma->sc_rw_ctxt_lock); in svc_rdma_get_rw_ctxt()
82 trace_svcrdma_no_rwctx_err(rdma, sges); in svc_rdma_get_rw_ctxt()
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| 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>
125 static void svc_rdma_send_cid_init(struct svcxprt_rdma *rdma, in svc_rdma_send_cid_init() argument
128 cid->ci_queue_id = rdma->sc_sq_cq->res.id; in svc_rdma_send_cid_init()
129 cid->ci_completion_id = atomic_inc_return(&rdma->sc_completion_ids); in svc_rdma_send_cid_init()
133 svc_rdma_send_ctxt_alloc(struct svcxprt_rdma *rdma) in svc_rdma_send_ctxt_alloc() argument
142 size += rdma->sc_max_send_sges * sizeof(struct ib_sge); in svc_rdma_send_ctxt_alloc()
146 buffer = kmalloc(rdma->sc_max_req_size, GFP_KERNEL); in svc_rdma_send_ctxt_alloc()
149 addr = ib_dma_map_single(rdma->sc_pd->device, buffer, in svc_rdma_send_ctxt_alloc()
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| 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>
120 static void svc_rdma_recv_cid_init(struct svcxprt_rdma *rdma, in svc_rdma_recv_cid_init() argument
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| D | svc_rdma_transport.c | 52 #include <rdma/ib_verbs.h>
53 #include <rdma/rdma_cm.h>
54 #include <rdma/rw.h>
94 .xcl_name = "rdma",
154 * paragraph 2). For now, we assume that all supported RDMA in svc_rdma_create_xprt()
276 struct svcxprt_rdma *rdma = cma_id->context; in svc_rdma_cma_handler() local
277 struct svc_xprt *xprt = &rdma->sc_xprt; in svc_rdma_cma_handler()
281 clear_bit(RDMAXPRT_CONN_PENDING, &rdma->sc_flags); in svc_rdma_cma_handler()
296 * Create a listening RDMA service endpoint.
478 /* Construct RDMA-CM private message */ in svc_rdma_accept()
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| D | svc_rdma_backchannel.c | 5 * Support for backward 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
81 ret = svc_rdma_map_reply_msg(rdma, ctxt, NULL, &rqst->rq_snd_buf); in svc_rdma_bc_sendto()
90 return svc_rdma_send(rdma, ctxt); in svc_rdma_bc_sendto()
133 rpcrdma_bc_send_request(struct svcxprt_rdma *rdma, struct rpc_rqst *rqst) in rpcrdma_bc_send_request() argument
141 ctxt = svc_rdma_send_ctxt_get(rdma); in rpcrdma_bc_send_request()
157 rc = svc_rdma_bc_sendto(rdma, rqst, ctxt); in rpcrdma_bc_send_request()
163 svc_rdma_send_ctxt_put(rdma, ctxt); in rpcrdma_bc_send_request()
180 struct svcxprt_rdma *rdma = in xprt_rdma_bc_send_request() local
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| /kernel/linux/linux-5.10/drivers/gpu/drm/meson/ |
| 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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| /kernel/linux/linux-5.10/Documentation/admin-guide/nfs/ |
| 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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| /kernel/linux/linux-5.10/include/linux/sunrpc/ |
| 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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| D | svc_rdma.h | 50 #include <rdma/ib_verbs.h>
51 #include <rdma/rdma_cm.h>
60 /* RPC/RDMA parameters and stats */
78 struct rdma_cm_id *sc_cm_id; /* RDMA connection id */
80 int sc_ord; /* RDMA read limit */
172 extern void svc_rdma_recv_ctxts_destroy(struct svcxprt_rdma *rdma);
173 extern bool svc_rdma_post_recvs(struct svcxprt_rdma *rdma);
174 extern void svc_rdma_recv_ctxt_put(struct svcxprt_rdma *rdma,
176 extern void svc_rdma_flush_recv_queues(struct svcxprt_rdma *rdma);
181 extern void svc_rdma_destroy_rw_ctxts(struct svcxprt_rdma *rdma);
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| /kernel/linux/linux-5.10/Documentation/ABI/stable/ |
| 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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| /kernel/linux/linux-5.10/include/rdma/ |
| 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.
123 * rdma_create_id - Create an RDMA identifier.
129 * @ps: RDMA port space.
143 * rdma_destroy_id - Destroys an RDMA identifier.
145 * @id: RDMA identifier.
153 * rdma_bind_addr - Bind an RDMA identifier to a source address and
154 * associated RDMA device, if needed.
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| /kernel/linux/linux-5.10/drivers/infiniband/ |
| 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>.
60 bool "RDMA/CM"
64 Support for RDMA communication manager (CM).
65 This allows for a generic connection abstraction over RDMA.
72 ConfigFS support for RDMA communication manager (CM).
|
| /kernel/linux/linux-5.10/drivers/gpu/drm/mediatek/ |
| D | mtk_disp_rdma.c | 48 #define RDMA_FIFO_SIZE(rdma) ((rdma)->data->fifo_size) argument
76 struct mtk_ddp_comp *rdma = &priv->ddp_comp; in mtk_disp_rdma_irq_handler() local
79 writel(0x0, rdma->regs + DISP_REG_RDMA_INT_STATUS); in mtk_disp_rdma_irq_handler()
84 mtk_crtc_ddp_irq(priv->crtc, rdma); in mtk_disp_rdma_irq_handler()
101 struct mtk_disp_rdma *rdma = comp_to_rdma(comp); in mtk_rdma_enable_vblank() local
103 rdma->crtc = crtc; in mtk_rdma_enable_vblank()
110 struct mtk_disp_rdma *rdma = comp_to_rdma(comp); in mtk_rdma_disable_vblank() local
112 rdma->crtc = NULL; in mtk_rdma_disable_vblank()
133 struct mtk_disp_rdma *rdma = comp_to_rdma(comp); in mtk_rdma_config() local
148 RDMA_FIFO_PSEUDO_SIZE(RDMA_FIFO_SIZE(rdma)) | in mtk_rdma_config()
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| /kernel/linux/linux-5.10/fs/cifs/ |
| 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 SGEs in a RDMA write/read */
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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| /kernel/linux/linux-5.10/include/trace/events/ |
| D | rpcrdma.h | 16 #include <rdma/ib_cm.h>
17 #include <trace/events/rdma.h>
1254 ** Server-side RPC/RDMA events
1259 const struct svcxprt_rdma *rdma,
1263 TP_ARGS(rdma, status),
1267 __string(addr, rdma->sc_xprt.xpt_remotebuf)
1272 __assign_str(addr, rdma->sc_xprt.xpt_remotebuf);
1283 const struct svcxprt_rdma *rdma, \
1286 TP_ARGS(rdma, status))
1542 ** Server-side RDMA API events
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| /kernel/linux/linux-5.10/drivers/infiniband/ulp/rtrs/ |
| 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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| 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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| D | rtrs-pri.h | 3 * RDMA Transport Layer
14 #include <rdma/rdma_cm.h>
15 #include <rdma/ib_verbs.h>
16 #include <rdma/ib.h>
132 * @RTRS_MSG_WRITE: Client writes data per RDMA to server
155 * struct rtrs_sg_desc - RDMA-Buffer entry description
156 * @addr: Address of RDMA destination buffer
180 * see https://www.spinics.net/lists/linux-rdma/msg22397.html
236 * @desc: RDMA buffers where the client can write to server
248 * @buf_id: RDMA buf_id of the new rkey
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| /kernel/linux/linux-5.10/drivers/infiniband/core/ |
| 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
|
| /kernel/linux/linux-5.10/drivers/infiniband/sw/rxe/ |
| D | rxe.h | 19 #include <rdma/ib_verbs.h>
20 #include <rdma/ib_user_verbs.h>
21 #include <rdma/ib_pack.h>
22 #include <rdma/ib_smi.h>
23 #include <rdma/ib_umem.h>
24 #include <rdma/ib_cache.h>
25 #include <rdma/ib_addr.h>
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| D | Kconfig | 3 tristate "Software RDMA over Ethernet (RoCE) driver"
10 This driver implements the InfiniBand RDMA transport over
19 Linux RDMA stack and implements a kernel or user space
28 https://github.com/linux-rdma/rdma-core/blob/master/Documentation/rxe.md
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| /kernel/linux/linux-5.10/include/linux/ |
| D | nvme-rdma.h | 49 * struct nvme_rdma_cm_req - rdma connect request
51 * @recfmt: format of the RDMA Private Data
65 * struct nvme_rdma_cm_rep - rdma connect reply
67 * @recfmt: format of the RDMA Private Data
77 * struct nvme_rdma_cm_rej - rdma connect reject
79 * @recfmt: format of the RDMA Private Data
|
| /kernel/linux/linux-5.10/drivers/infiniband/sw/siw/ |
| D | Kconfig | 2 tristate "Software RDMA over TCP/IP (iWARP) driver"
6 This driver implements the iWARP RDMA transport over
12 The driver interfaces with the Linux RDMA stack and
13 implements both a kernel and user space RDMA verbs API.
16 space verbs API, libibverbs. To implement RDMA over
|