2182 lines
54 KiB
C
2182 lines
54 KiB
C
/*
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* Copyright (c) 2005 Ammasso, Inc. All rights reserved.
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* Copyright (c) 2006-2009 Open Grid Computing, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/slab.h>
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#include <linux/err.h>
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#include <linux/string.h>
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#include <linux/list.h>
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#include <linux/in.h>
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#include <linux/device.h>
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#include <linux/pci.h>
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#include <linux/sched.h>
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#include <linux/wait.h>
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#include <asm/atomic.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/rdma_cm.h>
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#include "krping.h"
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#include "getopt.h"
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#define PFX "krping: "
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extern int krping_debug;
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#define DEBUG_LOG(...) do { if (krping_debug) log(LOG_INFO, __VA_ARGS__); } while (0)
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#define BIND_INFO 1
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MODULE_AUTHOR("Steve Wise");
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MODULE_DESCRIPTION("RDMA ping server");
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_VERSION(krping, 1);
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MODULE_DEPEND(krping, linuxkpi, 1, 1, 1);
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static __inline uint64_t
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get_cycles(void)
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{
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uint32_t low, high;
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__asm __volatile("rdtsc" : "=a" (low), "=d" (high));
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return (low | ((u_int64_t)high << 32));
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}
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typedef uint64_t cycles_t;
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enum mem_type {
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DMA = 1,
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REG = 2,
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};
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static const struct krping_option krping_opts[] = {
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{"count", OPT_INT, 'C'},
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{"size", OPT_INT, 'S'},
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{"addr", OPT_STRING, 'a'},
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{"addr6", OPT_STRING, 'A'},
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{"port", OPT_INT, 'p'},
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{"verbose", OPT_NOPARAM, 'v'},
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{"validate", OPT_NOPARAM, 'V'},
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{"server", OPT_NOPARAM, 's'},
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{"client", OPT_NOPARAM, 'c'},
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{"server_inv", OPT_NOPARAM, 'I'},
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{"wlat", OPT_NOPARAM, 'l'},
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{"rlat", OPT_NOPARAM, 'L'},
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{"bw", OPT_NOPARAM, 'B'},
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{"duplex", OPT_NOPARAM, 'd'},
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{"txdepth", OPT_INT, 'T'},
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{"poll", OPT_NOPARAM, 'P'},
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{"local_dma_lkey", OPT_NOPARAM, 'Z'},
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{"read_inv", OPT_NOPARAM, 'R'},
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{"fr", OPT_NOPARAM, 'f'},
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{NULL, 0, 0}
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};
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#define htonll(x) cpu_to_be64((x))
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#define ntohll(x) cpu_to_be64((x))
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static DEFINE_MUTEX(krping_mutex);
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/*
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* List of running krping threads.
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*/
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static LIST_HEAD(krping_cbs);
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/*
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* Invoke like this, one on each side, using the server's address on
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* the RDMA device (iw%d):
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*
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* /bin/echo server,port=9999,addr=192.168.69.142,validate > /proc/krping
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* /bin/echo client,port=9999,addr=192.168.69.142,validate > /proc/krping
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* /bin/echo client,port=9999,addr6=2001:db8:0:f101::1,validate > /proc/krping
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*
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* krping "ping/pong" loop:
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* client sends source rkey/addr/len
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* server receives source rkey/add/len
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* server rdma reads "ping" data from source
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* server sends "go ahead" on rdma read completion
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* client sends sink rkey/addr/len
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* server receives sink rkey/addr/len
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* server rdma writes "pong" data to sink
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* server sends "go ahead" on rdma write completion
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* <repeat loop>
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*/
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/*
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* These states are used to signal events between the completion handler
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* and the main client or server thread.
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*
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* Once CONNECTED, they cycle through RDMA_READ_ADV, RDMA_WRITE_ADV,
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* and RDMA_WRITE_COMPLETE for each ping.
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*/
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enum test_state {
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IDLE = 1,
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CONNECT_REQUEST,
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ADDR_RESOLVED,
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ROUTE_RESOLVED,
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CONNECTED,
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RDMA_READ_ADV,
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RDMA_READ_COMPLETE,
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RDMA_WRITE_ADV,
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RDMA_WRITE_COMPLETE,
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ERROR
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};
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struct krping_rdma_info {
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uint64_t buf;
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uint32_t rkey;
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uint32_t size;
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};
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/*
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* Default max buffer size for IO...
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*/
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#define RPING_BUFSIZE 128*1024
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#define RPING_SQ_DEPTH 64
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/*
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* Control block struct.
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*/
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struct krping_cb {
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int server; /* 0 iff client */
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struct ib_cq *cq;
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struct ib_pd *pd;
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struct ib_qp *qp;
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struct ib_mr *dma_mr;
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struct ib_fast_reg_page_list *page_list;
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int page_list_len;
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struct ib_reg_wr reg_mr_wr;
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struct ib_send_wr invalidate_wr;
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struct ib_mr *reg_mr;
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int server_invalidate;
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int read_inv;
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u8 key;
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struct ib_recv_wr rq_wr; /* recv work request record */
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struct ib_sge recv_sgl; /* recv single SGE */
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struct krping_rdma_info recv_buf __aligned(16); /* malloc'd buffer */
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u64 recv_dma_addr;
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DECLARE_PCI_UNMAP_ADDR(recv_mapping)
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struct ib_send_wr sq_wr; /* send work requrest record */
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struct ib_sge send_sgl;
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struct krping_rdma_info send_buf __aligned(16); /* single send buf */
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u64 send_dma_addr;
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DECLARE_PCI_UNMAP_ADDR(send_mapping)
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struct ib_rdma_wr rdma_sq_wr; /* rdma work request record */
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struct ib_sge rdma_sgl; /* rdma single SGE */
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char *rdma_buf; /* used as rdma sink */
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u64 rdma_dma_addr;
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DECLARE_PCI_UNMAP_ADDR(rdma_mapping)
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struct ib_mr *rdma_mr;
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uint32_t remote_rkey; /* remote guys RKEY */
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uint64_t remote_addr; /* remote guys TO */
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uint32_t remote_len; /* remote guys LEN */
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char *start_buf; /* rdma read src */
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u64 start_dma_addr;
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DECLARE_PCI_UNMAP_ADDR(start_mapping)
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struct ib_mr *start_mr;
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enum test_state state; /* used for cond/signalling */
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wait_queue_head_t sem;
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struct krping_stats stats;
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uint16_t port; /* dst port in NBO */
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u8 addr[16] __aligned(8); /* dst addr in NBO */
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char *addr_str; /* dst addr string */
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uint8_t addr_type; /* ADDR_FAMILY - IPv4/V6 */
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int verbose; /* verbose logging */
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int count; /* ping count */
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int size; /* ping data size */
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int validate; /* validate ping data */
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int wlat; /* run wlat test */
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int rlat; /* run rlat test */
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int bw; /* run bw test */
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int duplex; /* run bw full duplex test */
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int poll; /* poll or block for rlat test */
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int txdepth; /* SQ depth */
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int local_dma_lkey; /* use 0 for lkey */
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int frtest; /* reg test */
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/* CM stuff */
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struct rdma_cm_id *cm_id; /* connection on client side,*/
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/* listener on server side. */
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struct rdma_cm_id *child_cm_id; /* connection on server side */
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struct list_head list;
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};
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static int krping_cma_event_handler(struct rdma_cm_id *cma_id,
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struct rdma_cm_event *event)
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{
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int ret;
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struct krping_cb *cb = cma_id->context;
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DEBUG_LOG("cma_event type %d cma_id %p (%s)\n", event->event, cma_id,
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(cma_id == cb->cm_id) ? "parent" : "child");
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switch (event->event) {
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case RDMA_CM_EVENT_ADDR_RESOLVED:
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cb->state = ADDR_RESOLVED;
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ret = rdma_resolve_route(cma_id, 2000);
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if (ret) {
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printk(KERN_ERR PFX "rdma_resolve_route error %d\n",
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ret);
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wake_up_interruptible(&cb->sem);
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}
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break;
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case RDMA_CM_EVENT_ROUTE_RESOLVED:
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cb->state = ROUTE_RESOLVED;
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wake_up_interruptible(&cb->sem);
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break;
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case RDMA_CM_EVENT_CONNECT_REQUEST:
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cb->state = CONNECT_REQUEST;
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cb->child_cm_id = cma_id;
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DEBUG_LOG("child cma %p\n", cb->child_cm_id);
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wake_up_interruptible(&cb->sem);
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break;
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case RDMA_CM_EVENT_ESTABLISHED:
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DEBUG_LOG("ESTABLISHED\n");
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if (!cb->server) {
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cb->state = CONNECTED;
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}
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wake_up_interruptible(&cb->sem);
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break;
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case RDMA_CM_EVENT_ADDR_ERROR:
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case RDMA_CM_EVENT_ROUTE_ERROR:
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case RDMA_CM_EVENT_CONNECT_ERROR:
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case RDMA_CM_EVENT_UNREACHABLE:
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case RDMA_CM_EVENT_REJECTED:
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printk(KERN_ERR PFX "cma event %d, error %d\n", event->event,
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event->status);
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cb->state = ERROR;
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wake_up_interruptible(&cb->sem);
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break;
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case RDMA_CM_EVENT_DISCONNECTED:
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printk(KERN_ERR PFX "DISCONNECT EVENT...\n");
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cb->state = ERROR;
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wake_up_interruptible(&cb->sem);
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break;
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case RDMA_CM_EVENT_DEVICE_REMOVAL:
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printk(KERN_ERR PFX "cma detected device removal!!!!\n");
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cb->state = ERROR;
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wake_up_interruptible(&cb->sem);
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break;
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default:
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printk(KERN_ERR PFX "oof bad type!\n");
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wake_up_interruptible(&cb->sem);
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break;
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}
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return 0;
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}
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static int server_recv(struct krping_cb *cb, struct ib_wc *wc)
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{
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if (wc->byte_len != sizeof(cb->recv_buf)) {
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printk(KERN_ERR PFX "Received bogus data, size %d\n",
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wc->byte_len);
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return -1;
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}
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cb->remote_rkey = ntohl(cb->recv_buf.rkey);
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cb->remote_addr = ntohll(cb->recv_buf.buf);
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cb->remote_len = ntohl(cb->recv_buf.size);
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DEBUG_LOG("Received rkey %x addr %llx len %d from peer\n",
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cb->remote_rkey, (unsigned long long)cb->remote_addr,
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cb->remote_len);
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if (cb->state <= CONNECTED || cb->state == RDMA_WRITE_COMPLETE)
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cb->state = RDMA_READ_ADV;
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else
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cb->state = RDMA_WRITE_ADV;
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return 0;
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}
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static int client_recv(struct krping_cb *cb, struct ib_wc *wc)
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{
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if (wc->byte_len != sizeof(cb->recv_buf)) {
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printk(KERN_ERR PFX "Received bogus data, size %d\n",
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wc->byte_len);
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return -1;
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}
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if (cb->state == RDMA_READ_ADV)
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cb->state = RDMA_WRITE_ADV;
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else
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cb->state = RDMA_WRITE_COMPLETE;
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return 0;
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}
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static void krping_cq_event_handler(struct ib_cq *cq, void *ctx)
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{
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struct krping_cb *cb = ctx;
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struct ib_wc wc;
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struct ib_recv_wr *bad_wr;
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int ret;
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BUG_ON(cb->cq != cq);
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if (cb->state == ERROR) {
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printk(KERN_ERR PFX "cq completion in ERROR state\n");
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return;
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}
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if (cb->frtest) {
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printk(KERN_ERR PFX "cq completion event in frtest!\n");
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return;
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}
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if (!cb->wlat && !cb->rlat && !cb->bw)
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ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
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while ((ret = ib_poll_cq(cb->cq, 1, &wc)) == 1) {
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if (wc.status) {
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if (wc.status == IB_WC_WR_FLUSH_ERR) {
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DEBUG_LOG("cq flushed\n");
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continue;
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} else {
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printk(KERN_ERR PFX "cq completion failed with "
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"wr_id %jx status %d opcode %d vender_err %x\n",
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(uintmax_t)wc.wr_id, wc.status, wc.opcode, wc.vendor_err);
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goto error;
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}
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}
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switch (wc.opcode) {
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case IB_WC_SEND:
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DEBUG_LOG("send completion\n");
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cb->stats.send_bytes += cb->send_sgl.length;
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cb->stats.send_msgs++;
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break;
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case IB_WC_RDMA_WRITE:
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DEBUG_LOG("rdma write completion\n");
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cb->stats.write_bytes += cb->rdma_sq_wr.wr.sg_list->length;
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cb->stats.write_msgs++;
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cb->state = RDMA_WRITE_COMPLETE;
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wake_up_interruptible(&cb->sem);
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break;
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|
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case IB_WC_RDMA_READ:
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DEBUG_LOG("rdma read completion\n");
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cb->stats.read_bytes += cb->rdma_sq_wr.wr.sg_list->length;
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cb->stats.read_msgs++;
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cb->state = RDMA_READ_COMPLETE;
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wake_up_interruptible(&cb->sem);
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break;
|
|
|
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case IB_WC_RECV:
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DEBUG_LOG("recv completion\n");
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cb->stats.recv_bytes += sizeof(cb->recv_buf);
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cb->stats.recv_msgs++;
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if (cb->wlat || cb->rlat || cb->bw)
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ret = server_recv(cb, &wc);
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else
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ret = cb->server ? server_recv(cb, &wc) :
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client_recv(cb, &wc);
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if (ret) {
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printk(KERN_ERR PFX "recv wc error: %d\n", ret);
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goto error;
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}
|
|
|
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ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
|
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if (ret) {
|
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printk(KERN_ERR PFX "post recv error: %d\n",
|
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ret);
|
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goto error;
|
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}
|
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wake_up_interruptible(&cb->sem);
|
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break;
|
|
|
|
default:
|
|
printk(KERN_ERR PFX
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"%s:%d Unexpected opcode %d, Shutting down\n",
|
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__func__, __LINE__, wc.opcode);
|
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goto error;
|
|
}
|
|
}
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "poll error %d\n", ret);
|
|
goto error;
|
|
}
|
|
return;
|
|
error:
|
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cb->state = ERROR;
|
|
wake_up_interruptible(&cb->sem);
|
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}
|
|
|
|
static int krping_accept(struct krping_cb *cb)
|
|
{
|
|
struct rdma_conn_param conn_param;
|
|
int ret;
|
|
|
|
DEBUG_LOG("accepting client connection request\n");
|
|
|
|
memset(&conn_param, 0, sizeof conn_param);
|
|
conn_param.responder_resources = 1;
|
|
conn_param.initiator_depth = 1;
|
|
|
|
ret = rdma_accept(cb->child_cm_id, &conn_param);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "rdma_accept error: %d\n", ret);
|
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return ret;
|
|
}
|
|
|
|
if (!cb->wlat && !cb->rlat && !cb->bw) {
|
|
wait_event_interruptible(cb->sem, cb->state >= CONNECTED);
|
|
if (cb->state == ERROR) {
|
|
printk(KERN_ERR PFX "wait for CONNECTED state %d\n",
|
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cb->state);
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void krping_setup_wr(struct krping_cb *cb)
|
|
{
|
|
cb->recv_sgl.addr = cb->recv_dma_addr;
|
|
cb->recv_sgl.length = sizeof cb->recv_buf;
|
|
cb->recv_sgl.lkey = cb->pd->local_dma_lkey;
|
|
cb->rq_wr.sg_list = &cb->recv_sgl;
|
|
cb->rq_wr.num_sge = 1;
|
|
|
|
cb->send_sgl.addr = cb->send_dma_addr;
|
|
cb->send_sgl.length = sizeof cb->send_buf;
|
|
cb->send_sgl.lkey = cb->pd->local_dma_lkey;
|
|
|
|
cb->sq_wr.opcode = IB_WR_SEND;
|
|
cb->sq_wr.send_flags = IB_SEND_SIGNALED;
|
|
cb->sq_wr.sg_list = &cb->send_sgl;
|
|
cb->sq_wr.num_sge = 1;
|
|
|
|
if (cb->server || cb->wlat || cb->rlat || cb->bw) {
|
|
cb->rdma_sgl.addr = cb->rdma_dma_addr;
|
|
cb->rdma_sq_wr.wr.send_flags = IB_SEND_SIGNALED;
|
|
cb->rdma_sq_wr.wr.sg_list = &cb->rdma_sgl;
|
|
cb->rdma_sq_wr.wr.num_sge = 1;
|
|
}
|
|
|
|
/*
|
|
* A chain of 2 WRs, INVALDATE_MR + REG_MR.
|
|
* both unsignaled. The client uses them to reregister
|
|
* the rdma buffers with a new key each iteration.
|
|
*/
|
|
cb->reg_mr_wr.wr.opcode = IB_WR_REG_MR;
|
|
cb->reg_mr_wr.mr = cb->reg_mr;
|
|
|
|
cb->invalidate_wr.next = &cb->reg_mr_wr.wr;
|
|
cb->invalidate_wr.opcode = IB_WR_LOCAL_INV;
|
|
}
|
|
|
|
static int krping_setup_buffers(struct krping_cb *cb)
|
|
{
|
|
int ret;
|
|
|
|
DEBUG_LOG(PFX "krping_setup_buffers called on cb %p\n", cb);
|
|
|
|
cb->recv_dma_addr = ib_dma_map_single(cb->pd->device,
|
|
&cb->recv_buf,
|
|
sizeof(cb->recv_buf), DMA_BIDIRECTIONAL);
|
|
pci_unmap_addr_set(cb, recv_mapping, cb->recv_dma_addr);
|
|
cb->send_dma_addr = ib_dma_map_single(cb->pd->device,
|
|
&cb->send_buf, sizeof(cb->send_buf),
|
|
DMA_BIDIRECTIONAL);
|
|
pci_unmap_addr_set(cb, send_mapping, cb->send_dma_addr);
|
|
|
|
cb->rdma_buf = ib_dma_alloc_coherent(cb->pd->device, cb->size,
|
|
&cb->rdma_dma_addr,
|
|
GFP_KERNEL);
|
|
if (!cb->rdma_buf) {
|
|
DEBUG_LOG(PFX "rdma_buf allocation failed\n");
|
|
ret = -ENOMEM;
|
|
goto bail;
|
|
}
|
|
pci_unmap_addr_set(cb, rdma_mapping, cb->rdma_dma_addr);
|
|
cb->page_list_len = (((cb->size - 1) & PAGE_MASK) + PAGE_SIZE)
|
|
>> PAGE_SHIFT;
|
|
cb->reg_mr = ib_alloc_mr(cb->pd, IB_MR_TYPE_MEM_REG,
|
|
cb->page_list_len);
|
|
if (IS_ERR(cb->reg_mr)) {
|
|
ret = PTR_ERR(cb->reg_mr);
|
|
DEBUG_LOG(PFX "recv_buf reg_mr failed %d\n", ret);
|
|
goto bail;
|
|
}
|
|
DEBUG_LOG(PFX "reg rkey 0x%x page_list_len %u\n",
|
|
cb->reg_mr->rkey, cb->page_list_len);
|
|
|
|
if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
|
|
|
|
cb->start_buf = ib_dma_alloc_coherent(cb->pd->device, cb->size,
|
|
&cb->start_dma_addr,
|
|
GFP_KERNEL);
|
|
if (!cb->start_buf) {
|
|
DEBUG_LOG(PFX "start_buf malloc failed\n");
|
|
ret = -ENOMEM;
|
|
goto bail;
|
|
}
|
|
pci_unmap_addr_set(cb, start_mapping, cb->start_dma_addr);
|
|
}
|
|
|
|
krping_setup_wr(cb);
|
|
DEBUG_LOG(PFX "allocated & registered buffers...\n");
|
|
return 0;
|
|
bail:
|
|
if (cb->reg_mr && !IS_ERR(cb->reg_mr))
|
|
ib_dereg_mr(cb->reg_mr);
|
|
if (cb->rdma_mr && !IS_ERR(cb->rdma_mr))
|
|
ib_dereg_mr(cb->rdma_mr);
|
|
if (cb->dma_mr && !IS_ERR(cb->dma_mr))
|
|
ib_dereg_mr(cb->dma_mr);
|
|
if (cb->rdma_buf) {
|
|
ib_dma_free_coherent(cb->pd->device, cb->size, cb->rdma_buf,
|
|
cb->rdma_dma_addr);
|
|
}
|
|
if (cb->start_buf) {
|
|
ib_dma_free_coherent(cb->pd->device, cb->size, cb->start_buf,
|
|
cb->start_dma_addr);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void krping_free_buffers(struct krping_cb *cb)
|
|
{
|
|
DEBUG_LOG("krping_free_buffers called on cb %p\n", cb);
|
|
|
|
if (cb->dma_mr)
|
|
ib_dereg_mr(cb->dma_mr);
|
|
if (cb->rdma_mr)
|
|
ib_dereg_mr(cb->rdma_mr);
|
|
if (cb->start_mr)
|
|
ib_dereg_mr(cb->start_mr);
|
|
if (cb->reg_mr)
|
|
ib_dereg_mr(cb->reg_mr);
|
|
|
|
dma_unmap_single(cb->pd->device->dma_device,
|
|
pci_unmap_addr(cb, recv_mapping),
|
|
sizeof(cb->recv_buf), DMA_BIDIRECTIONAL);
|
|
dma_unmap_single(cb->pd->device->dma_device,
|
|
pci_unmap_addr(cb, send_mapping),
|
|
sizeof(cb->send_buf), DMA_BIDIRECTIONAL);
|
|
|
|
ib_dma_free_coherent(cb->pd->device, cb->size, cb->rdma_buf,
|
|
cb->rdma_dma_addr);
|
|
|
|
if (cb->start_buf) {
|
|
ib_dma_free_coherent(cb->pd->device, cb->size, cb->start_buf,
|
|
cb->start_dma_addr);
|
|
}
|
|
}
|
|
|
|
static int krping_create_qp(struct krping_cb *cb)
|
|
{
|
|
struct ib_qp_init_attr init_attr;
|
|
int ret;
|
|
|
|
memset(&init_attr, 0, sizeof(init_attr));
|
|
init_attr.cap.max_send_wr = cb->txdepth;
|
|
init_attr.cap.max_recv_wr = 2;
|
|
|
|
/* For flush_qp() */
|
|
init_attr.cap.max_send_wr++;
|
|
init_attr.cap.max_recv_wr++;
|
|
|
|
init_attr.cap.max_recv_sge = 1;
|
|
init_attr.cap.max_send_sge = 1;
|
|
init_attr.qp_type = IB_QPT_RC;
|
|
init_attr.send_cq = cb->cq;
|
|
init_attr.recv_cq = cb->cq;
|
|
init_attr.sq_sig_type = IB_SIGNAL_REQ_WR;
|
|
|
|
if (cb->server) {
|
|
ret = rdma_create_qp(cb->child_cm_id, cb->pd, &init_attr);
|
|
if (!ret)
|
|
cb->qp = cb->child_cm_id->qp;
|
|
} else {
|
|
ret = rdma_create_qp(cb->cm_id, cb->pd, &init_attr);
|
|
if (!ret)
|
|
cb->qp = cb->cm_id->qp;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void krping_free_qp(struct krping_cb *cb)
|
|
{
|
|
ib_destroy_qp(cb->qp);
|
|
ib_destroy_cq(cb->cq);
|
|
ib_dealloc_pd(cb->pd);
|
|
}
|
|
|
|
static int krping_setup_qp(struct krping_cb *cb, struct rdma_cm_id *cm_id)
|
|
{
|
|
int ret;
|
|
struct ib_cq_init_attr attr = {0};
|
|
|
|
cb->pd = ib_alloc_pd(cm_id->device, 0);
|
|
if (IS_ERR(cb->pd)) {
|
|
printk(KERN_ERR PFX "ib_alloc_pd failed\n");
|
|
return PTR_ERR(cb->pd);
|
|
}
|
|
DEBUG_LOG("created pd %p\n", cb->pd);
|
|
|
|
strlcpy(cb->stats.name, cb->pd->device->name, sizeof(cb->stats.name));
|
|
|
|
attr.cqe = cb->txdepth * 2;
|
|
attr.comp_vector = 0;
|
|
cb->cq = ib_create_cq(cm_id->device, krping_cq_event_handler, NULL,
|
|
cb, &attr);
|
|
if (IS_ERR(cb->cq)) {
|
|
printk(KERN_ERR PFX "ib_create_cq failed\n");
|
|
ret = PTR_ERR(cb->cq);
|
|
goto err1;
|
|
}
|
|
DEBUG_LOG("created cq %p\n", cb->cq);
|
|
|
|
if (!cb->wlat && !cb->rlat && !cb->bw && !cb->frtest) {
|
|
ret = ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "ib_create_cq failed\n");
|
|
goto err2;
|
|
}
|
|
}
|
|
|
|
ret = krping_create_qp(cb);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "krping_create_qp failed: %d\n", ret);
|
|
goto err2;
|
|
}
|
|
DEBUG_LOG("created qp %p\n", cb->qp);
|
|
return 0;
|
|
err2:
|
|
ib_destroy_cq(cb->cq);
|
|
err1:
|
|
ib_dealloc_pd(cb->pd);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* return the (possibly rebound) rkey for the rdma buffer.
|
|
* REG mode: invalidate and rebind via reg wr.
|
|
* other modes: just return the mr rkey.
|
|
*/
|
|
static u32 krping_rdma_rkey(struct krping_cb *cb, u64 buf, int post_inv)
|
|
{
|
|
u32 rkey;
|
|
struct ib_send_wr *bad_wr;
|
|
int ret;
|
|
struct scatterlist sg = {0};
|
|
|
|
cb->invalidate_wr.ex.invalidate_rkey = cb->reg_mr->rkey;
|
|
|
|
/*
|
|
* Update the reg key.
|
|
*/
|
|
ib_update_fast_reg_key(cb->reg_mr, ++cb->key);
|
|
cb->reg_mr_wr.key = cb->reg_mr->rkey;
|
|
|
|
/*
|
|
* Update the reg WR with new buf info.
|
|
*/
|
|
if (buf == (u64)cb->start_dma_addr)
|
|
cb->reg_mr_wr.access = IB_ACCESS_REMOTE_READ;
|
|
else
|
|
cb->reg_mr_wr.access = IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE;
|
|
sg_dma_address(&sg) = buf;
|
|
sg_dma_len(&sg) = cb->size;
|
|
|
|
ret = ib_map_mr_sg(cb->reg_mr, &sg, 1, NULL, PAGE_SIZE);
|
|
BUG_ON(ret <= 0 || ret > cb->page_list_len);
|
|
|
|
DEBUG_LOG(PFX "post_inv = %d, reg_mr new rkey 0x%x pgsz %u len %u"
|
|
" iova_start %llx\n",
|
|
post_inv,
|
|
cb->reg_mr_wr.key,
|
|
cb->reg_mr->page_size,
|
|
cb->reg_mr->length,
|
|
(unsigned long long)cb->reg_mr->iova);
|
|
|
|
if (post_inv)
|
|
ret = ib_post_send(cb->qp, &cb->invalidate_wr, &bad_wr);
|
|
else
|
|
ret = ib_post_send(cb->qp, &cb->reg_mr_wr.wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
cb->state = ERROR;
|
|
}
|
|
rkey = cb->reg_mr->rkey;
|
|
return rkey;
|
|
}
|
|
|
|
static void krping_format_send(struct krping_cb *cb, u64 buf)
|
|
{
|
|
struct krping_rdma_info *info = &cb->send_buf;
|
|
u32 rkey;
|
|
|
|
/*
|
|
* Client side will do reg or mw bind before
|
|
* advertising the rdma buffer. Server side
|
|
* sends have no data.
|
|
*/
|
|
if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
|
|
rkey = krping_rdma_rkey(cb, buf, !cb->server_invalidate);
|
|
info->buf = htonll(buf);
|
|
info->rkey = htonl(rkey);
|
|
info->size = htonl(cb->size);
|
|
DEBUG_LOG("RDMA addr %llx rkey %x len %d\n",
|
|
(unsigned long long)buf, rkey, cb->size);
|
|
}
|
|
}
|
|
|
|
static void krping_test_server(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr, inv;
|
|
int ret;
|
|
|
|
while (1) {
|
|
/* Wait for client's Start STAG/TO/Len */
|
|
wait_event_interruptible(cb->sem, cb->state >= RDMA_READ_ADV);
|
|
if (cb->state != RDMA_READ_ADV) {
|
|
printk(KERN_ERR PFX "wait for RDMA_READ_ADV state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
|
|
DEBUG_LOG("server received sink adv\n");
|
|
|
|
cb->rdma_sq_wr.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.wr.sg_list->length = cb->remote_len;
|
|
cb->rdma_sgl.lkey = krping_rdma_rkey(cb, cb->rdma_dma_addr, !cb->read_inv);
|
|
cb->rdma_sq_wr.wr.next = NULL;
|
|
|
|
/* Issue RDMA Read. */
|
|
if (cb->read_inv)
|
|
cb->rdma_sq_wr.wr.opcode = IB_WR_RDMA_READ_WITH_INV;
|
|
else {
|
|
|
|
cb->rdma_sq_wr.wr.opcode = IB_WR_RDMA_READ;
|
|
/*
|
|
* Immediately follow the read with a
|
|
* fenced LOCAL_INV.
|
|
*/
|
|
cb->rdma_sq_wr.wr.next = &inv;
|
|
memset(&inv, 0, sizeof inv);
|
|
inv.opcode = IB_WR_LOCAL_INV;
|
|
inv.ex.invalidate_rkey = cb->reg_mr->rkey;
|
|
inv.send_flags = IB_SEND_FENCE;
|
|
}
|
|
|
|
ret = ib_post_send(cb->qp, &cb->rdma_sq_wr.wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
cb->rdma_sq_wr.wr.next = NULL;
|
|
|
|
DEBUG_LOG("server posted rdma read req \n");
|
|
|
|
/* Wait for read completion */
|
|
wait_event_interruptible(cb->sem,
|
|
cb->state >= RDMA_READ_COMPLETE);
|
|
if (cb->state != RDMA_READ_COMPLETE) {
|
|
printk(KERN_ERR PFX
|
|
"wait for RDMA_READ_COMPLETE state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
DEBUG_LOG("server received read complete\n");
|
|
|
|
/* Display data in recv buf */
|
|
if (cb->verbose)
|
|
printk(KERN_INFO PFX "server ping data: %s\n",
|
|
cb->rdma_buf);
|
|
|
|
/* Tell client to continue */
|
|
if (cb->server && cb->server_invalidate) {
|
|
cb->sq_wr.ex.invalidate_rkey = cb->remote_rkey;
|
|
cb->sq_wr.opcode = IB_WR_SEND_WITH_INV;
|
|
DEBUG_LOG("send-w-inv rkey 0x%x\n", cb->remote_rkey);
|
|
}
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
DEBUG_LOG("server posted go ahead\n");
|
|
|
|
/* Wait for client's RDMA STAG/TO/Len */
|
|
wait_event_interruptible(cb->sem, cb->state >= RDMA_WRITE_ADV);
|
|
if (cb->state != RDMA_WRITE_ADV) {
|
|
printk(KERN_ERR PFX
|
|
"wait for RDMA_WRITE_ADV state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
DEBUG_LOG("server received sink adv\n");
|
|
|
|
/* RDMA Write echo data */
|
|
cb->rdma_sq_wr.wr.opcode = IB_WR_RDMA_WRITE;
|
|
cb->rdma_sq_wr.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.wr.sg_list->length = strlen(cb->rdma_buf) + 1;
|
|
if (cb->local_dma_lkey)
|
|
cb->rdma_sgl.lkey = cb->pd->local_dma_lkey;
|
|
else
|
|
cb->rdma_sgl.lkey = krping_rdma_rkey(cb, cb->rdma_dma_addr, 0);
|
|
|
|
DEBUG_LOG("rdma write from lkey %x laddr %llx len %d\n",
|
|
cb->rdma_sq_wr.wr.sg_list->lkey,
|
|
(unsigned long long)cb->rdma_sq_wr.wr.sg_list->addr,
|
|
cb->rdma_sq_wr.wr.sg_list->length);
|
|
|
|
ret = ib_post_send(cb->qp, &cb->rdma_sq_wr.wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
|
|
/* Wait for completion */
|
|
ret = wait_event_interruptible(cb->sem, cb->state >=
|
|
RDMA_WRITE_COMPLETE);
|
|
if (cb->state != RDMA_WRITE_COMPLETE) {
|
|
printk(KERN_ERR PFX
|
|
"wait for RDMA_WRITE_COMPLETE state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
DEBUG_LOG("server rdma write complete \n");
|
|
|
|
cb->state = CONNECTED;
|
|
|
|
/* Tell client to begin again */
|
|
if (cb->server && cb->server_invalidate) {
|
|
cb->sq_wr.ex.invalidate_rkey = cb->remote_rkey;
|
|
cb->sq_wr.opcode = IB_WR_SEND_WITH_INV;
|
|
DEBUG_LOG("send-w-inv rkey 0x%x\n", cb->remote_rkey);
|
|
}
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
DEBUG_LOG("server posted go ahead\n");
|
|
}
|
|
}
|
|
|
|
static void rlat_test(struct krping_cb *cb)
|
|
{
|
|
int scnt;
|
|
int iters = cb->count;
|
|
struct timeval start_tv, stop_tv;
|
|
int ret;
|
|
struct ib_wc wc;
|
|
struct ib_send_wr *bad_wr;
|
|
int ne;
|
|
|
|
scnt = 0;
|
|
cb->rdma_sq_wr.wr.opcode = IB_WR_RDMA_READ;
|
|
cb->rdma_sq_wr.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.wr.sg_list->length = cb->size;
|
|
|
|
microtime(&start_tv);
|
|
if (!cb->poll) {
|
|
cb->state = RDMA_READ_ADV;
|
|
ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
|
|
}
|
|
while (scnt < iters) {
|
|
|
|
cb->state = RDMA_READ_ADV;
|
|
ret = ib_post_send(cb->qp, &cb->rdma_sq_wr.wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX
|
|
"Couldn't post send: ret=%d scnt %d\n",
|
|
ret, scnt);
|
|
return;
|
|
}
|
|
|
|
do {
|
|
if (!cb->poll) {
|
|
wait_event_interruptible(cb->sem,
|
|
cb->state != RDMA_READ_ADV);
|
|
if (cb->state == RDMA_READ_COMPLETE) {
|
|
ne = 1;
|
|
ib_req_notify_cq(cb->cq,
|
|
IB_CQ_NEXT_COMP);
|
|
} else {
|
|
ne = -1;
|
|
}
|
|
} else
|
|
ne = ib_poll_cq(cb->cq, 1, &wc);
|
|
if (cb->state == ERROR) {
|
|
printk(KERN_ERR PFX
|
|
"state == ERROR...bailing scnt %d\n",
|
|
scnt);
|
|
return;
|
|
}
|
|
} while (ne == 0);
|
|
|
|
if (ne < 0) {
|
|
printk(KERN_ERR PFX "poll CQ failed %d\n", ne);
|
|
return;
|
|
}
|
|
if (cb->poll && wc.status != IB_WC_SUCCESS) {
|
|
printk(KERN_ERR PFX "Completion wth error at %s:\n",
|
|
cb->server ? "server" : "client");
|
|
printk(KERN_ERR PFX "Failed status %d: wr_id %d\n",
|
|
wc.status, (int) wc.wr_id);
|
|
return;
|
|
}
|
|
++scnt;
|
|
}
|
|
microtime(&stop_tv);
|
|
|
|
if (stop_tv.tv_usec < start_tv.tv_usec) {
|
|
stop_tv.tv_usec += 1000000;
|
|
stop_tv.tv_sec -= 1;
|
|
}
|
|
|
|
printk(KERN_ERR PFX "delta sec %lu delta usec %lu iter %d size %d\n",
|
|
(unsigned long)(stop_tv.tv_sec - start_tv.tv_sec),
|
|
(unsigned long)(stop_tv.tv_usec - start_tv.tv_usec),
|
|
scnt, cb->size);
|
|
}
|
|
|
|
static void wlat_test(struct krping_cb *cb)
|
|
{
|
|
int ccnt, scnt, rcnt;
|
|
int iters=cb->count;
|
|
volatile char *poll_buf = (char *) cb->start_buf;
|
|
char *buf = (char *)cb->rdma_buf;
|
|
struct timeval start_tv, stop_tv;
|
|
cycles_t *post_cycles_start, *post_cycles_stop;
|
|
cycles_t *poll_cycles_start, *poll_cycles_stop;
|
|
cycles_t *last_poll_cycles_start;
|
|
cycles_t sum_poll = 0, sum_post = 0, sum_last_poll = 0;
|
|
int i;
|
|
int cycle_iters = 1000;
|
|
|
|
ccnt = 0;
|
|
scnt = 0;
|
|
rcnt = 0;
|
|
|
|
post_cycles_start = kmalloc(cycle_iters * sizeof(cycles_t), GFP_KERNEL);
|
|
if (!post_cycles_start) {
|
|
printk(KERN_ERR PFX "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
post_cycles_stop = kmalloc(cycle_iters * sizeof(cycles_t), GFP_KERNEL);
|
|
if (!post_cycles_stop) {
|
|
printk(KERN_ERR PFX "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
poll_cycles_start = kmalloc(cycle_iters * sizeof(cycles_t), GFP_KERNEL);
|
|
if (!poll_cycles_start) {
|
|
printk(KERN_ERR PFX "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
poll_cycles_stop = kmalloc(cycle_iters * sizeof(cycles_t), GFP_KERNEL);
|
|
if (!poll_cycles_stop) {
|
|
printk(KERN_ERR PFX "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
last_poll_cycles_start = kmalloc(cycle_iters * sizeof(cycles_t),
|
|
GFP_KERNEL);
|
|
if (!last_poll_cycles_start) {
|
|
printk(KERN_ERR PFX "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
cb->rdma_sq_wr.wr.opcode = IB_WR_RDMA_WRITE;
|
|
cb->rdma_sq_wr.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.wr.sg_list->length = cb->size;
|
|
|
|
if (cycle_iters > iters)
|
|
cycle_iters = iters;
|
|
microtime(&start_tv);
|
|
while (scnt < iters || ccnt < iters || rcnt < iters) {
|
|
|
|
/* Wait till buffer changes. */
|
|
if (rcnt < iters && !(scnt < 1 && !cb->server)) {
|
|
++rcnt;
|
|
while (*poll_buf != (char)rcnt) {
|
|
if (cb->state == ERROR) {
|
|
printk(KERN_ERR PFX
|
|
"state = ERROR, bailing\n");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (scnt < iters) {
|
|
struct ib_send_wr *bad_wr;
|
|
|
|
*buf = (char)scnt+1;
|
|
if (scnt < cycle_iters)
|
|
post_cycles_start[scnt] = get_cycles();
|
|
if (ib_post_send(cb->qp, &cb->rdma_sq_wr.wr, &bad_wr)) {
|
|
printk(KERN_ERR PFX
|
|
"Couldn't post send: scnt=%d\n",
|
|
scnt);
|
|
return;
|
|
}
|
|
if (scnt < cycle_iters)
|
|
post_cycles_stop[scnt] = get_cycles();
|
|
scnt++;
|
|
}
|
|
|
|
if (ccnt < iters) {
|
|
struct ib_wc wc;
|
|
int ne;
|
|
|
|
if (ccnt < cycle_iters)
|
|
poll_cycles_start[ccnt] = get_cycles();
|
|
do {
|
|
if (ccnt < cycle_iters)
|
|
last_poll_cycles_start[ccnt] =
|
|
get_cycles();
|
|
ne = ib_poll_cq(cb->cq, 1, &wc);
|
|
} while (ne == 0);
|
|
if (ccnt < cycle_iters)
|
|
poll_cycles_stop[ccnt] = get_cycles();
|
|
++ccnt;
|
|
|
|
if (ne < 0) {
|
|
printk(KERN_ERR PFX "poll CQ failed %d\n", ne);
|
|
return;
|
|
}
|
|
if (wc.status != IB_WC_SUCCESS) {
|
|
printk(KERN_ERR PFX
|
|
"Completion wth error at %s:\n",
|
|
cb->server ? "server" : "client");
|
|
printk(KERN_ERR PFX
|
|
"Failed status %d: wr_id %d\n",
|
|
wc.status, (int) wc.wr_id);
|
|
printk(KERN_ERR PFX
|
|
"scnt=%d, rcnt=%d, ccnt=%d\n",
|
|
scnt, rcnt, ccnt);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
microtime(&stop_tv);
|
|
|
|
if (stop_tv.tv_usec < start_tv.tv_usec) {
|
|
stop_tv.tv_usec += 1000000;
|
|
stop_tv.tv_sec -= 1;
|
|
}
|
|
|
|
for (i=0; i < cycle_iters; i++) {
|
|
sum_post += post_cycles_stop[i] - post_cycles_start[i];
|
|
sum_poll += poll_cycles_stop[i] - poll_cycles_start[i];
|
|
sum_last_poll += poll_cycles_stop[i]-last_poll_cycles_start[i];
|
|
}
|
|
printk(KERN_ERR PFX
|
|
"delta sec %lu delta usec %lu iter %d size %d cycle_iters %d"
|
|
" sum_post %llu sum_poll %llu sum_last_poll %llu\n",
|
|
(unsigned long)(stop_tv.tv_sec - start_tv.tv_sec),
|
|
(unsigned long)(stop_tv.tv_usec - start_tv.tv_usec),
|
|
scnt, cb->size, cycle_iters,
|
|
(unsigned long long)sum_post, (unsigned long long)sum_poll,
|
|
(unsigned long long)sum_last_poll);
|
|
kfree(post_cycles_start);
|
|
kfree(post_cycles_stop);
|
|
kfree(poll_cycles_start);
|
|
kfree(poll_cycles_stop);
|
|
kfree(last_poll_cycles_start);
|
|
}
|
|
|
|
static void bw_test(struct krping_cb *cb)
|
|
{
|
|
int ccnt, scnt, rcnt;
|
|
int iters=cb->count;
|
|
struct timeval start_tv, stop_tv;
|
|
cycles_t *post_cycles_start, *post_cycles_stop;
|
|
cycles_t *poll_cycles_start, *poll_cycles_stop;
|
|
cycles_t *last_poll_cycles_start;
|
|
cycles_t sum_poll = 0, sum_post = 0, sum_last_poll = 0;
|
|
int i;
|
|
int cycle_iters = 1000;
|
|
|
|
ccnt = 0;
|
|
scnt = 0;
|
|
rcnt = 0;
|
|
|
|
post_cycles_start = kmalloc(cycle_iters * sizeof(cycles_t), GFP_KERNEL);
|
|
if (!post_cycles_start) {
|
|
printk(KERN_ERR PFX "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
post_cycles_stop = kmalloc(cycle_iters * sizeof(cycles_t), GFP_KERNEL);
|
|
if (!post_cycles_stop) {
|
|
printk(KERN_ERR PFX "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
poll_cycles_start = kmalloc(cycle_iters * sizeof(cycles_t), GFP_KERNEL);
|
|
if (!poll_cycles_start) {
|
|
printk(KERN_ERR PFX "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
poll_cycles_stop = kmalloc(cycle_iters * sizeof(cycles_t), GFP_KERNEL);
|
|
if (!poll_cycles_stop) {
|
|
printk(KERN_ERR PFX "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
last_poll_cycles_start = kmalloc(cycle_iters * sizeof(cycles_t),
|
|
GFP_KERNEL);
|
|
if (!last_poll_cycles_start) {
|
|
printk(KERN_ERR PFX "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
cb->rdma_sq_wr.wr.opcode = IB_WR_RDMA_WRITE;
|
|
cb->rdma_sq_wr.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.wr.sg_list->length = cb->size;
|
|
|
|
if (cycle_iters > iters)
|
|
cycle_iters = iters;
|
|
microtime(&start_tv);
|
|
while (scnt < iters || ccnt < iters) {
|
|
|
|
while (scnt < iters && scnt - ccnt < cb->txdepth) {
|
|
struct ib_send_wr *bad_wr;
|
|
|
|
if (scnt < cycle_iters)
|
|
post_cycles_start[scnt] = get_cycles();
|
|
if (ib_post_send(cb->qp, &cb->rdma_sq_wr.wr, &bad_wr)) {
|
|
printk(KERN_ERR PFX
|
|
"Couldn't post send: scnt=%d\n",
|
|
scnt);
|
|
return;
|
|
}
|
|
if (scnt < cycle_iters)
|
|
post_cycles_stop[scnt] = get_cycles();
|
|
++scnt;
|
|
}
|
|
|
|
if (ccnt < iters) {
|
|
int ne;
|
|
struct ib_wc wc;
|
|
|
|
if (ccnt < cycle_iters)
|
|
poll_cycles_start[ccnt] = get_cycles();
|
|
do {
|
|
if (ccnt < cycle_iters)
|
|
last_poll_cycles_start[ccnt] =
|
|
get_cycles();
|
|
ne = ib_poll_cq(cb->cq, 1, &wc);
|
|
} while (ne == 0);
|
|
if (ccnt < cycle_iters)
|
|
poll_cycles_stop[ccnt] = get_cycles();
|
|
ccnt += 1;
|
|
|
|
if (ne < 0) {
|
|
printk(KERN_ERR PFX "poll CQ failed %d\n", ne);
|
|
return;
|
|
}
|
|
if (wc.status != IB_WC_SUCCESS) {
|
|
printk(KERN_ERR PFX
|
|
"Completion wth error at %s:\n",
|
|
cb->server ? "server" : "client");
|
|
printk(KERN_ERR PFX
|
|
"Failed status %d: wr_id %d\n",
|
|
wc.status, (int) wc.wr_id);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
microtime(&stop_tv);
|
|
|
|
if (stop_tv.tv_usec < start_tv.tv_usec) {
|
|
stop_tv.tv_usec += 1000000;
|
|
stop_tv.tv_sec -= 1;
|
|
}
|
|
|
|
for (i=0; i < cycle_iters; i++) {
|
|
sum_post += post_cycles_stop[i] - post_cycles_start[i];
|
|
sum_poll += poll_cycles_stop[i] - poll_cycles_start[i];
|
|
sum_last_poll += poll_cycles_stop[i]-last_poll_cycles_start[i];
|
|
}
|
|
printk(KERN_ERR PFX
|
|
"delta sec %lu delta usec %lu iter %d size %d cycle_iters %d"
|
|
" sum_post %llu sum_poll %llu sum_last_poll %llu\n",
|
|
(unsigned long)(stop_tv.tv_sec - start_tv.tv_sec),
|
|
(unsigned long)(stop_tv.tv_usec - start_tv.tv_usec),
|
|
scnt, cb->size, cycle_iters,
|
|
(unsigned long long)sum_post, (unsigned long long)sum_poll,
|
|
(unsigned long long)sum_last_poll);
|
|
kfree(post_cycles_start);
|
|
kfree(post_cycles_stop);
|
|
kfree(poll_cycles_start);
|
|
kfree(poll_cycles_stop);
|
|
kfree(last_poll_cycles_start);
|
|
}
|
|
|
|
static void krping_rlat_test_server(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
/* Spin waiting for client's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_READ_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
krping_format_send(cb, cb->start_dma_addr);
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
printk(KERN_ERR PFX "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
printk(KERN_ERR PFX "send completiong error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
wait_event_interruptible(cb->sem, cb->state == ERROR);
|
|
}
|
|
|
|
static void krping_wlat_test_server(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
/* Spin waiting for client's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_READ_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
krping_format_send(cb, cb->start_dma_addr);
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
printk(KERN_ERR PFX "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
printk(KERN_ERR PFX "send completiong error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
wlat_test(cb);
|
|
wait_event_interruptible(cb->sem, cb->state == ERROR);
|
|
}
|
|
|
|
static void krping_bw_test_server(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
/* Spin waiting for client's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_READ_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
krping_format_send(cb, cb->start_dma_addr);
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
printk(KERN_ERR PFX "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
printk(KERN_ERR PFX "send completiong error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
if (cb->duplex)
|
|
bw_test(cb);
|
|
wait_event_interruptible(cb->sem, cb->state == ERROR);
|
|
}
|
|
|
|
static int reg_supported(struct ib_device *dev)
|
|
{
|
|
u64 needed_flags = IB_DEVICE_MEM_MGT_EXTENSIONS;
|
|
|
|
if ((dev->attrs.device_cap_flags & needed_flags) != needed_flags) {
|
|
printk(KERN_ERR PFX
|
|
"Fastreg not supported - device_cap_flags 0x%llx\n",
|
|
(unsigned long long)dev->attrs.device_cap_flags);
|
|
return 0;
|
|
}
|
|
DEBUG_LOG("Fastreg supported - device_cap_flags 0x%llx\n",
|
|
(unsigned long long)dev->attrs.device_cap_flags);
|
|
return 1;
|
|
}
|
|
|
|
static void fill_sockaddr(struct sockaddr_storage *sin, struct krping_cb *cb)
|
|
{
|
|
memset(sin, 0, sizeof(*sin));
|
|
|
|
if (cb->addr_type == AF_INET) {
|
|
struct sockaddr_in *sin4 = (struct sockaddr_in *)sin;
|
|
sin4->sin_len = sizeof(*sin4);
|
|
sin4->sin_family = AF_INET;
|
|
memcpy((void *)&sin4->sin_addr.s_addr, cb->addr, 4);
|
|
sin4->sin_port = cb->port;
|
|
} else if (cb->addr_type == AF_INET6) {
|
|
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sin;
|
|
sin6->sin6_len = sizeof(*sin6);
|
|
sin6->sin6_family = AF_INET6;
|
|
memcpy((void *)&sin6->sin6_addr, cb->addr, 16);
|
|
sin6->sin6_port = cb->port;
|
|
}
|
|
}
|
|
|
|
static int krping_bind_server(struct krping_cb *cb)
|
|
{
|
|
struct sockaddr_storage sin;
|
|
int ret;
|
|
|
|
|
|
fill_sockaddr(&sin, cb);
|
|
|
|
ret = rdma_bind_addr(cb->cm_id, (struct sockaddr *)&sin);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "rdma_bind_addr error %d\n", ret);
|
|
return ret;
|
|
}
|
|
DEBUG_LOG("rdma_bind_addr successful\n");
|
|
|
|
DEBUG_LOG("rdma_listen\n");
|
|
ret = rdma_listen(cb->cm_id, 3);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "rdma_listen failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
wait_event_interruptible(cb->sem, cb->state >= CONNECT_REQUEST);
|
|
if (cb->state != CONNECT_REQUEST) {
|
|
printk(KERN_ERR PFX "wait for CONNECT_REQUEST state %d\n",
|
|
cb->state);
|
|
return -1;
|
|
}
|
|
|
|
if (!reg_supported(cb->child_cm_id->device))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void krping_run_server(struct krping_cb *cb)
|
|
{
|
|
struct ib_recv_wr *bad_wr;
|
|
int ret;
|
|
|
|
ret = krping_bind_server(cb);
|
|
if (ret)
|
|
return;
|
|
|
|
ret = krping_setup_qp(cb, cb->child_cm_id);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "setup_qp failed: %d\n", ret);
|
|
goto err0;
|
|
}
|
|
|
|
ret = krping_setup_buffers(cb);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "krping_setup_buffers failed: %d\n", ret);
|
|
goto err1;
|
|
}
|
|
|
|
ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "ib_post_recv failed: %d\n", ret);
|
|
goto err2;
|
|
}
|
|
|
|
ret = krping_accept(cb);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "connect error %d\n", ret);
|
|
goto err2;
|
|
}
|
|
|
|
if (cb->wlat)
|
|
krping_wlat_test_server(cb);
|
|
else if (cb->rlat)
|
|
krping_rlat_test_server(cb);
|
|
else if (cb->bw)
|
|
krping_bw_test_server(cb);
|
|
else
|
|
krping_test_server(cb);
|
|
rdma_disconnect(cb->child_cm_id);
|
|
err2:
|
|
krping_free_buffers(cb);
|
|
err1:
|
|
krping_free_qp(cb);
|
|
err0:
|
|
rdma_destroy_id(cb->child_cm_id);
|
|
}
|
|
|
|
static void krping_test_client(struct krping_cb *cb)
|
|
{
|
|
int ping, start, cc, i, ret;
|
|
struct ib_send_wr *bad_wr;
|
|
unsigned char c;
|
|
|
|
start = 65;
|
|
for (ping = 0; !cb->count || ping < cb->count; ping++) {
|
|
cb->state = RDMA_READ_ADV;
|
|
|
|
/* Put some ascii text in the buffer. */
|
|
cc = sprintf(cb->start_buf, "rdma-ping-%d: ", ping);
|
|
for (i = cc, c = start; i < cb->size; i++) {
|
|
cb->start_buf[i] = c;
|
|
c++;
|
|
if (c > 122)
|
|
c = 65;
|
|
}
|
|
start++;
|
|
if (start > 122)
|
|
start = 65;
|
|
cb->start_buf[cb->size - 1] = 0;
|
|
|
|
krping_format_send(cb, cb->start_dma_addr);
|
|
if (cb->state == ERROR) {
|
|
printk(KERN_ERR PFX "krping_format_send failed\n");
|
|
break;
|
|
}
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
|
|
/* Wait for server to ACK */
|
|
wait_event_interruptible(cb->sem, cb->state >= RDMA_WRITE_ADV);
|
|
if (cb->state != RDMA_WRITE_ADV) {
|
|
printk(KERN_ERR PFX
|
|
"wait for RDMA_WRITE_ADV state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
|
|
krping_format_send(cb, cb->rdma_dma_addr);
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
|
|
/* Wait for the server to say the RDMA Write is complete. */
|
|
wait_event_interruptible(cb->sem,
|
|
cb->state >= RDMA_WRITE_COMPLETE);
|
|
if (cb->state != RDMA_WRITE_COMPLETE) {
|
|
printk(KERN_ERR PFX
|
|
"wait for RDMA_WRITE_COMPLETE state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
|
|
if (cb->validate)
|
|
if (memcmp(cb->start_buf, cb->rdma_buf, cb->size)) {
|
|
printk(KERN_ERR PFX "data mismatch!\n");
|
|
break;
|
|
}
|
|
|
|
if (cb->verbose)
|
|
printk(KERN_INFO PFX "ping data: %s\n", cb->rdma_buf);
|
|
#ifdef SLOW_KRPING
|
|
wait_event_interruptible_timeout(cb->sem, cb->state == ERROR, HZ);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static void krping_rlat_test_client(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
cb->state = RDMA_READ_ADV;
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
krping_format_send(cb, cb->start_dma_addr);
|
|
if (cb->state == ERROR) {
|
|
printk(KERN_ERR PFX "krping_format_send failed\n");
|
|
return;
|
|
}
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
printk(KERN_ERR PFX "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
printk(KERN_ERR PFX "send completion error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for server's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_WRITE_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
#if 0
|
|
{
|
|
int i;
|
|
struct timeval start, stop;
|
|
time_t sec;
|
|
suseconds_t usec;
|
|
unsigned long long elapsed;
|
|
struct ib_wc wc;
|
|
struct ib_send_wr *bad_wr;
|
|
int ne;
|
|
|
|
cb->rdma_sq_wr.wr.opcode = IB_WR_RDMA_WRITE;
|
|
cb->rdma_sq_wr.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.wr.sg_list->length = 0;
|
|
cb->rdma_sq_wr.wr.num_sge = 0;
|
|
|
|
microtime(&start);
|
|
for (i=0; i < 100000; i++) {
|
|
if (ib_post_send(cb->qp, &cb->rdma_sq_wr.wr, &bad_wr)) {
|
|
printk(KERN_ERR PFX "Couldn't post send\n");
|
|
return;
|
|
}
|
|
do {
|
|
ne = ib_poll_cq(cb->cq, 1, &wc);
|
|
} while (ne == 0);
|
|
if (ne < 0) {
|
|
printk(KERN_ERR PFX "poll CQ failed %d\n", ne);
|
|
return;
|
|
}
|
|
if (wc.status != IB_WC_SUCCESS) {
|
|
printk(KERN_ERR PFX "Completion wth error at %s:\n",
|
|
cb->server ? "server" : "client");
|
|
printk(KERN_ERR PFX "Failed status %d: wr_id %d\n",
|
|
wc.status, (int) wc.wr_id);
|
|
return;
|
|
}
|
|
}
|
|
microtime(&stop);
|
|
|
|
if (stop.tv_usec < start.tv_usec) {
|
|
stop.tv_usec += 1000000;
|
|
stop.tv_sec -= 1;
|
|
}
|
|
sec = stop.tv_sec - start.tv_sec;
|
|
usec = stop.tv_usec - start.tv_usec;
|
|
elapsed = sec * 1000000 + usec;
|
|
printk(KERN_ERR PFX "0B-write-lat iters 100000 usec %llu\n", elapsed);
|
|
}
|
|
#endif
|
|
|
|
rlat_test(cb);
|
|
}
|
|
|
|
static void krping_wlat_test_client(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
cb->state = RDMA_READ_ADV;
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
krping_format_send(cb, cb->start_dma_addr);
|
|
if (cb->state == ERROR) {
|
|
printk(KERN_ERR PFX "krping_format_send failed\n");
|
|
return;
|
|
}
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
printk(KERN_ERR PFX "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
printk(KERN_ERR PFX "send completion error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for server's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_WRITE_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
wlat_test(cb);
|
|
}
|
|
|
|
static void krping_bw_test_client(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
cb->state = RDMA_READ_ADV;
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
krping_format_send(cb, cb->start_dma_addr);
|
|
if (cb->state == ERROR) {
|
|
printk(KERN_ERR PFX "krping_format_send failed\n");
|
|
return;
|
|
}
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
printk(KERN_ERR PFX "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
printk(KERN_ERR PFX "send completion error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for server's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_WRITE_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
bw_test(cb);
|
|
}
|
|
|
|
/*
|
|
* Manual qp flush test
|
|
*/
|
|
static void flush_qp(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr wr = { 0 }, *bad;
|
|
struct ib_recv_wr recv_wr = { 0 }, *recv_bad;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
int flushed = 0;
|
|
int ccnt = 0;
|
|
|
|
rdma_disconnect(cb->cm_id);
|
|
DEBUG_LOG("disconnected!\n");
|
|
|
|
wr.opcode = IB_WR_SEND;
|
|
wr.wr_id = 0xdeadbeefcafebabe;
|
|
ret = ib_post_send(cb->qp, &wr, &bad);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "%s post_send failed ret %d\n", __func__, ret);
|
|
return;
|
|
}
|
|
|
|
recv_wr.wr_id = 0xcafebabedeadbeef;
|
|
ret = ib_post_recv(cb->qp, &recv_wr, &recv_bad);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "%s post_recv failed ret %d\n", __func__, ret);
|
|
return;
|
|
}
|
|
|
|
/* poll until the flush WRs complete */
|
|
do {
|
|
ret = ib_poll_cq(cb->cq, 1, &wc);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR PFX "ib_poll_cq failed %d\n", ret);
|
|
return;
|
|
}
|
|
if (ret == 0)
|
|
continue;
|
|
ccnt++;
|
|
if (wc.wr_id == 0xdeadbeefcafebabe ||
|
|
wc.wr_id == 0xcafebabedeadbeef)
|
|
flushed++;
|
|
} while (flushed != 2);
|
|
DEBUG_LOG("qp_flushed! ccnt %u\n", ccnt);
|
|
}
|
|
|
|
static void krping_fr_test(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr inv, *bad;
|
|
struct ib_reg_wr fr;
|
|
struct ib_wc wc;
|
|
u8 key = 0;
|
|
struct ib_mr *mr;
|
|
int ret;
|
|
int size = cb->size;
|
|
int plen = (((size - 1) & PAGE_MASK) + PAGE_SIZE) >> PAGE_SHIFT;
|
|
unsigned long start;
|
|
int count = 0;
|
|
int scnt = 0;
|
|
struct scatterlist sg = {0};
|
|
|
|
mr = ib_alloc_mr(cb->pd, IB_MR_TYPE_MEM_REG, plen);
|
|
if (IS_ERR(mr)) {
|
|
printk(KERN_ERR PFX "ib_alloc_mr failed %ld\n", PTR_ERR(mr));
|
|
return;
|
|
}
|
|
|
|
sg_dma_address(&sg) = (dma_addr_t)0xcafebabe0000ULL;
|
|
sg_dma_len(&sg) = size;
|
|
ret = ib_map_mr_sg(mr, &sg, 1, NULL, PAGE_SIZE);
|
|
if (ret <= 0) {
|
|
printk(KERN_ERR PFX "ib_map_mr_sge err %d\n", ret);
|
|
goto err2;
|
|
}
|
|
|
|
memset(&fr, 0, sizeof fr);
|
|
fr.wr.opcode = IB_WR_REG_MR;
|
|
fr.access = IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE;
|
|
fr.mr = mr;
|
|
fr.wr.next = &inv;
|
|
|
|
memset(&inv, 0, sizeof inv);
|
|
inv.opcode = IB_WR_LOCAL_INV;
|
|
inv.send_flags = IB_SEND_SIGNALED;
|
|
|
|
DEBUG_LOG("fr_test: stag index 0x%x plen %u size %u depth %u\n", mr->rkey >> 8, plen, cb->size, cb->txdepth);
|
|
start = time_uptime;
|
|
while (!cb->count || count <= cb->count) {
|
|
if (SIGPENDING(curthread)) {
|
|
printk(KERN_ERR PFX "signal!\n");
|
|
break;
|
|
}
|
|
if ((time_uptime - start) >= 9) {
|
|
DEBUG_LOG("fr_test: pausing 1 second! count %u latest size %u plen %u\n", count, size, plen);
|
|
wait_event_interruptible_timeout(cb->sem, cb->state == ERROR, HZ);
|
|
if (cb->state == ERROR)
|
|
break;
|
|
start = time_uptime;
|
|
}
|
|
while (scnt < (cb->txdepth>>1)) {
|
|
ib_update_fast_reg_key(mr, ++key);
|
|
fr.key = mr->rkey;
|
|
inv.ex.invalidate_rkey = mr->rkey;
|
|
|
|
size = arc4random() % cb->size;
|
|
if (size == 0)
|
|
size = cb->size;
|
|
sg_dma_len(&sg) = size;
|
|
ret = ib_map_mr_sg(mr, &sg, 1, NULL, PAGE_SIZE);
|
|
if (ret <= 0) {
|
|
printk(KERN_ERR PFX "ib_map_mr_sge err %d\n", ret);
|
|
goto err2;
|
|
}
|
|
ret = ib_post_send(cb->qp, &fr.wr, &bad);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "ib_post_send failed %d\n", ret);
|
|
goto err2;
|
|
}
|
|
scnt++;
|
|
}
|
|
|
|
ret = ib_poll_cq(cb->cq, 1, &wc);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR PFX "ib_poll_cq failed %d\n", ret);
|
|
goto err2;
|
|
}
|
|
if (ret == 1) {
|
|
if (wc.status) {
|
|
printk(KERN_ERR PFX "completion error %u\n", wc.status);
|
|
goto err2;
|
|
}
|
|
count++;
|
|
scnt--;
|
|
}
|
|
}
|
|
err2:
|
|
flush_qp(cb);
|
|
DEBUG_LOG("fr_test: done!\n");
|
|
ib_dereg_mr(mr);
|
|
}
|
|
|
|
static int krping_connect_client(struct krping_cb *cb)
|
|
{
|
|
struct rdma_conn_param conn_param;
|
|
int ret;
|
|
|
|
memset(&conn_param, 0, sizeof conn_param);
|
|
conn_param.responder_resources = 1;
|
|
conn_param.initiator_depth = 1;
|
|
conn_param.retry_count = 10;
|
|
|
|
ret = rdma_connect(cb->cm_id, &conn_param);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "rdma_connect error %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
wait_event_interruptible(cb->sem, cb->state >= CONNECTED);
|
|
if (cb->state == ERROR) {
|
|
printk(KERN_ERR PFX "wait for CONNECTED state %d\n", cb->state);
|
|
return -1;
|
|
}
|
|
|
|
DEBUG_LOG("rdma_connect successful\n");
|
|
return 0;
|
|
}
|
|
|
|
static int krping_bind_client(struct krping_cb *cb)
|
|
{
|
|
struct sockaddr_storage sin;
|
|
int ret;
|
|
|
|
fill_sockaddr(&sin, cb);
|
|
|
|
ret = rdma_resolve_addr(cb->cm_id, NULL, (struct sockaddr *)&sin, 2000);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "rdma_resolve_addr error %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
wait_event_interruptible(cb->sem, cb->state >= ROUTE_RESOLVED);
|
|
if (cb->state != ROUTE_RESOLVED) {
|
|
printk(KERN_ERR PFX
|
|
"addr/route resolution did not resolve: state %d\n",
|
|
cb->state);
|
|
return -EINTR;
|
|
}
|
|
|
|
if (!reg_supported(cb->cm_id->device))
|
|
return -EINVAL;
|
|
|
|
DEBUG_LOG("rdma_resolve_addr - rdma_resolve_route successful\n");
|
|
return 0;
|
|
}
|
|
|
|
static void krping_run_client(struct krping_cb *cb)
|
|
{
|
|
struct ib_recv_wr *bad_wr;
|
|
int ret;
|
|
|
|
ret = krping_bind_client(cb);
|
|
if (ret)
|
|
return;
|
|
|
|
ret = krping_setup_qp(cb, cb->cm_id);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "setup_qp failed: %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
ret = krping_setup_buffers(cb);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "krping_setup_buffers failed: %d\n", ret);
|
|
goto err1;
|
|
}
|
|
|
|
ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "ib_post_recv failed: %d\n", ret);
|
|
goto err2;
|
|
}
|
|
|
|
ret = krping_connect_client(cb);
|
|
if (ret) {
|
|
printk(KERN_ERR PFX "connect error %d\n", ret);
|
|
goto err2;
|
|
}
|
|
|
|
if (cb->wlat)
|
|
krping_wlat_test_client(cb);
|
|
else if (cb->rlat)
|
|
krping_rlat_test_client(cb);
|
|
else if (cb->bw)
|
|
krping_bw_test_client(cb);
|
|
else if (cb->frtest)
|
|
krping_fr_test(cb);
|
|
else
|
|
krping_test_client(cb);
|
|
rdma_disconnect(cb->cm_id);
|
|
err2:
|
|
krping_free_buffers(cb);
|
|
err1:
|
|
krping_free_qp(cb);
|
|
}
|
|
|
|
static uint16_t
|
|
krping_get_ipv6_scope_id(char *name)
|
|
{
|
|
struct ifnet *ifp;
|
|
uint16_t retval;
|
|
|
|
if (name == NULL)
|
|
return (0);
|
|
CURVNET_SET_QUIET(TD_TO_VNET(curthread));
|
|
ifp = ifunit_ref(name);
|
|
CURVNET_RESTORE();
|
|
if (ifp == NULL)
|
|
return (0);
|
|
retval = ifp->if_index;
|
|
if_rele(ifp);
|
|
return (retval);
|
|
}
|
|
|
|
int krping_doit(char *cmd)
|
|
{
|
|
struct krping_cb *cb;
|
|
int op;
|
|
int ret = 0;
|
|
char *optarg;
|
|
char *scope;
|
|
unsigned long optint;
|
|
|
|
cb = kzalloc(sizeof(*cb), GFP_KERNEL);
|
|
if (!cb)
|
|
return -ENOMEM;
|
|
|
|
mutex_lock(&krping_mutex);
|
|
list_add_tail(&cb->list, &krping_cbs);
|
|
mutex_unlock(&krping_mutex);
|
|
|
|
cb->server = -1;
|
|
cb->state = IDLE;
|
|
cb->size = 64;
|
|
cb->txdepth = RPING_SQ_DEPTH;
|
|
init_waitqueue_head(&cb->sem);
|
|
|
|
while ((op = krping_getopt("krping", &cmd, krping_opts, NULL, &optarg,
|
|
&optint)) != 0) {
|
|
switch (op) {
|
|
case 'a':
|
|
cb->addr_str = optarg;
|
|
cb->addr_type = AF_INET;
|
|
DEBUG_LOG("ipaddr (%s)\n", optarg);
|
|
if (inet_pton(AF_INET, optarg, cb->addr) != 1) {
|
|
printk(KERN_ERR PFX "bad addr string %s\n",
|
|
optarg);
|
|
ret = EINVAL;
|
|
}
|
|
break;
|
|
case 'A':
|
|
cb->addr_str = optarg;
|
|
cb->addr_type = AF_INET6;
|
|
DEBUG_LOG("ipv6addr (%s)\n", optarg);
|
|
scope = strstr(optarg, "%");
|
|
/* extract scope ID, if any */
|
|
if (scope != NULL)
|
|
*scope++ = 0;
|
|
/* extract IPv6 network address */
|
|
if (inet_pton(AF_INET6, optarg, cb->addr) != 1) {
|
|
printk(KERN_ERR PFX "bad addr string %s\n",
|
|
optarg);
|
|
ret = EINVAL;
|
|
} else if (IN6_IS_SCOPE_LINKLOCAL((struct in6_addr *)cb->addr) ||
|
|
IN6_IS_ADDR_MC_INTFACELOCAL((struct in6_addr *)cb->addr)) {
|
|
uint16_t scope_id = krping_get_ipv6_scope_id(scope);
|
|
DEBUG_LOG("ipv6 scope ID = %d\n", scope_id);
|
|
cb->addr[2] = scope_id >> 8;
|
|
cb->addr[3] = scope_id & 0xFF;
|
|
}
|
|
break;
|
|
case 'p':
|
|
cb->port = htons(optint);
|
|
DEBUG_LOG("port %d\n", (int)optint);
|
|
break;
|
|
case 'P':
|
|
cb->poll = 1;
|
|
DEBUG_LOG("server\n");
|
|
break;
|
|
case 's':
|
|
cb->server = 1;
|
|
DEBUG_LOG("server\n");
|
|
break;
|
|
case 'c':
|
|
cb->server = 0;
|
|
DEBUG_LOG("client\n");
|
|
break;
|
|
case 'S':
|
|
cb->size = optint;
|
|
if ((cb->size < 1) ||
|
|
(cb->size > RPING_BUFSIZE)) {
|
|
printk(KERN_ERR PFX "Invalid size %d "
|
|
"(valid range is 1 to %d)\n",
|
|
cb->size, RPING_BUFSIZE);
|
|
ret = EINVAL;
|
|
} else
|
|
DEBUG_LOG("size %d\n", (int)optint);
|
|
break;
|
|
case 'C':
|
|
cb->count = optint;
|
|
if (cb->count < 0) {
|
|
printk(KERN_ERR PFX "Invalid count %d\n",
|
|
cb->count);
|
|
ret = EINVAL;
|
|
} else
|
|
DEBUG_LOG("count %d\n", (int) cb->count);
|
|
break;
|
|
case 'v':
|
|
cb->verbose++;
|
|
DEBUG_LOG("verbose\n");
|
|
break;
|
|
case 'V':
|
|
cb->validate++;
|
|
DEBUG_LOG("validate data\n");
|
|
break;
|
|
case 'l':
|
|
cb->wlat++;
|
|
break;
|
|
case 'L':
|
|
cb->rlat++;
|
|
break;
|
|
case 'B':
|
|
cb->bw++;
|
|
break;
|
|
case 'd':
|
|
cb->duplex++;
|
|
break;
|
|
case 'I':
|
|
cb->server_invalidate = 1;
|
|
break;
|
|
case 'T':
|
|
cb->txdepth = optint;
|
|
DEBUG_LOG("txdepth %d\n", (int) cb->txdepth);
|
|
break;
|
|
case 'Z':
|
|
cb->local_dma_lkey = 1;
|
|
DEBUG_LOG("using local dma lkey\n");
|
|
break;
|
|
case 'R':
|
|
cb->read_inv = 1;
|
|
DEBUG_LOG("using read-with-inv\n");
|
|
break;
|
|
case 'f':
|
|
cb->frtest = 1;
|
|
DEBUG_LOG("fast-reg test!\n");
|
|
break;
|
|
default:
|
|
printk(KERN_ERR PFX "unknown opt %s\n", optarg);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
}
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (cb->server == -1) {
|
|
printk(KERN_ERR PFX "must be either client or server\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (cb->server && cb->frtest) {
|
|
printk(KERN_ERR PFX "must be client to run frtest\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if ((cb->frtest + cb->bw + cb->rlat + cb->wlat) > 1) {
|
|
printk(KERN_ERR PFX "Pick only one test: fr, bw, rlat, wlat\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (cb->wlat || cb->rlat || cb->bw) {
|
|
printk(KERN_ERR PFX "wlat, rlat, and bw tests only support mem_mode MR - which is no longer supported\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
cb->cm_id = rdma_create_id(&init_net, krping_cma_event_handler, cb, RDMA_PS_TCP, IB_QPT_RC);
|
|
if (IS_ERR(cb->cm_id)) {
|
|
ret = PTR_ERR(cb->cm_id);
|
|
printk(KERN_ERR PFX "rdma_create_id error %d\n", ret);
|
|
goto out;
|
|
}
|
|
DEBUG_LOG("created cm_id %p\n", cb->cm_id);
|
|
|
|
if (cb->server)
|
|
krping_run_server(cb);
|
|
else
|
|
krping_run_client(cb);
|
|
|
|
DEBUG_LOG("destroy cm_id %p\n", cb->cm_id);
|
|
rdma_destroy_id(cb->cm_id);
|
|
out:
|
|
mutex_lock(&krping_mutex);
|
|
list_del(&cb->list);
|
|
mutex_unlock(&krping_mutex);
|
|
kfree(cb);
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
krping_walk_cb_list(void (*f)(struct krping_stats *, void *), void *arg)
|
|
{
|
|
struct krping_cb *cb;
|
|
|
|
mutex_lock(&krping_mutex);
|
|
list_for_each_entry(cb, &krping_cbs, list)
|
|
(*f)(cb->pd ? &cb->stats : NULL, arg);
|
|
mutex_unlock(&krping_mutex);
|
|
}
|