Mercurial > illumos > illumos-gate
view usr/src/cmd/mdb/common/modules/sockfs/sockfs.c @ 8348:4137e18bfaf0
PSARC 2007/587 Volo -- Low Latency Socket Framework
PSARC 2008/694 Volo Interfaces Amendment
6765829 Integration of project Volo PSARC/2007/587
6644935 mblk cred_t reference counting limits scalability
6693633 TCP receive does not scale because of heavy refcounting of cred structures
4764841 connect/accept is slow on Solaris when compared to Linux
5105708 socket creation retains hold on accessvp
4764836 setsockopt is slow on Solaris when compared to Linux
4772191 socket close(2) is slow on Solaris when compared to Linux
author | Yu Xiangning<Eric.Yu@Sun.COM> |
---|---|
date | Thu, 11 Dec 2008 20:04:13 -0800 |
parents | |
children | 1c48a05ba37d |
line wrap: on
line source
/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #include <sys/types.h> #include <sys/stropts.h> #include <sys/socket.h> #include <sys/socketvar.h> #include <mdb/mdb_modapi.h> #include <mdb/mdb_ks.h> /* * Look up the symbol name for the given sockparams list and walk * all the entries. */ static boolean_t sockparams_walk_list(const char *symname, int argc, const mdb_arg_t *argv) { GElf_Sym sym; if (mdb_lookup_by_name(symname, &sym)) { mdb_warn("can't find symbol %s", symname); return (B_FALSE); } if (mdb_pwalk_dcmd("list", "sockfs`sockparams", argc, argv, sym.st_value) != 0) { mdb_warn("can't walk %s", symname); return (B_FALSE); } return (B_TRUE); } /* * dcmd to print sockparams info. * * If no address is given then the default is to print all sockparams on the * global list (i.e., installed with soconfig(1)). To also print the ephemeral * entries the '-e' flag should be used. Only ephemeral entries can be printed * by specifying the '-E' flag. */ static int sockparams_prt(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) { struct sockparams sp; if ((flags & DCMD_ADDRSPEC) == 0) { uint_t opt_e = 0; uint_t opt_E = 0; /* * Determine what lists should be printed */ if (mdb_getopts(argc, argv, 'e', MDB_OPT_SETBITS, 1, &opt_e, 'E', MDB_OPT_SETBITS, 1, &opt_E) != argc) return (DCMD_USAGE); if (!opt_E) { if (!sockparams_walk_list("sphead", argc, argv)) return (DCMD_ERR); } if (opt_e || opt_E) { if (!sockparams_walk_list("sp_ephem_list", argc, argv)) return (DCMD_ERR); } return (DCMD_OK); } /* * If we are piping the output, then just print out the address, * otherwise summarize the sockparams info. */ if ((flags & DCMD_PIPE_OUT) != 0) { mdb_printf("%#lr\n", addr); return (DCMD_OK); } if (DCMD_HDRSPEC(flags)) { mdb_printf("%-?s %3s %3s %3s %15s %15s %6s %6s\n", "ADDR", "FAM", "TYP", "PRO", "STRDEV", "SOCKMOD", "REFS", "FLGS"); } if (mdb_vread(&sp, sizeof (sp), addr) == -1) { mdb_warn("failed to read sockparams at %0?p", addr); return (DCMD_ERR); } mdb_printf("%0?p %3u %3u %3u %15s %15s %6u %#6x\n", addr, sp.sp_family, sp.sp_type, sp.sp_protocol, (sp.sp_sdev_info.sd_devpath != 0) ? sp.sp_sdev_info.sd_devpath : "-", sp.sp_smod_name, sp.sp_refcnt, sp.sp_flags); return (DCMD_OK); } /* * Help function */ void sockparams_help(void) { mdb_printf("Print sockparams information for a give sockparams ptr.\n" "Without the address, list available sockparams. Default " "behavior is to list only entries that were installed by the " "admin (via soconfig(1M)).\n\n" "Options:\n" " -e:\t\tlist ephemeral sockparams\n" " -E:\t\tonly list ephemeral sockparams\n"); } static const mdb_dcmd_t dcmds[] = { { "sockparams", "[-eE]", "print sockparams", sockparams_prt, sockparams_help }, { NULL } }; static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds, NULL }; const mdb_modinfo_t * _mdb_init(void) { return (&modinfo); }