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authorLinus Torvalds <torvalds@linux-foundation.org>2016-10-14 15:17:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-10-14 15:17:12 -0700
commit5d89d9f502f9c33ed0270d716f238429861e1942 (patch)
tree6a353640e6836ca465f2dcf00323a7f8a793ae59 /Documentation
parent50cff89837a43a7c62ac080de9742a298d6418b3 (diff)
parentfecf861e765b2f9ce1a0487c3940afaed80ef7a8 (diff)
Merge tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan: "This update consists of: - Fixes and improvements to existing tests - Moving code from Documentation to selftests, samples, and tools: * Moves dnotify_test, prctl, ptp, vDSO, ia64, watchdog, and networking tests from Documentation to selftests. * Moves mic/mpssd, misc-devices/mei, timers, watchdog, auxdisplay, and blackfin examples from Documentation to samples. * Moves accounting, laptops/dslm, and pcmcia/crc32hash tools from Documentation to tools. * Deletes BUILD_DOCSRC and its dependencies" * tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (21 commits) selftests/futex: Check ANSI terminal color support Doc: update 00-INDEX files to reflect the runnable code move samples: move blackfin gptimers-example from Documentation tools: move pcmcia crc32hash tool from Documentation tools: move laptops dslm tool from Documentation tools: move accounting tool from Documentation samples: move auxdisplay example code from Documentation samples: move watchdog example code from Documentation samples: move timers example code from Documentation samples: move misc-devices/mei example code from Documentation samples: move mic/mpssd example code from Documentation selftests: Move networking/timestamping from Documentation selftests: move watchdog tests from Documentation/watchdog selftests: move ia64 tests from Documentation/ia64 selftests: move vDSO tests from Documentation/vDSO selftests: move ptp tests from Documentation/ptp selftests: move prctl tests from Documentation/prctl selftests: move dnotify_test from Documentation/filesystems selftests/timers: Add missing error code assignment before test selftests/zram: replace ZRAM_LZ4_COMPRESS ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/00-INDEX3
-rw-r--r--Documentation/Makefile4
-rw-r--r--Documentation/accounting/.gitignore1
-rw-r--r--Documentation/accounting/Makefile7
-rw-r--r--Documentation/accounting/delay-accounting.txt6
-rw-r--r--Documentation/accounting/getdelays.c550
-rw-r--r--Documentation/arm/00-INDEX2
-rw-r--r--Documentation/auxdisplay/.gitignore1
-rw-r--r--Documentation/auxdisplay/Makefile7
-rw-r--r--Documentation/auxdisplay/cfag12864b2
-rw-r--r--Documentation/auxdisplay/cfag12864b-example.c281
-rw-r--r--Documentation/blackfin/00-INDEX4
-rw-r--r--Documentation/blackfin/Makefile5
-rw-r--r--Documentation/blackfin/gptimers-example.c91
-rw-r--r--Documentation/filesystems/.gitignore1
-rw-r--r--Documentation/filesystems/00-INDEX2
-rw-r--r--Documentation/filesystems/Makefile5
-rw-r--r--Documentation/filesystems/dnotify_test.c34
-rw-r--r--Documentation/ia64/.gitignore1
-rw-r--r--Documentation/ia64/Makefile5
-rw-r--r--Documentation/ia64/aliasing-test.c263
-rw-r--r--Documentation/kselftest.txt5
-rw-r--r--Documentation/laptops/.gitignore1
-rw-r--r--Documentation/laptops/00-INDEX4
-rw-r--r--Documentation/laptops/Makefile5
-rw-r--r--Documentation/laptops/dslm.c166
-rw-r--r--Documentation/laptops/laptop-mode.txt2
-rw-r--r--Documentation/mic/Makefile1
-rw-r--r--Documentation/mic/mpssd/.gitignore1
-rw-r--r--Documentation/mic/mpssd/Makefile21
-rwxr-xr-xDocumentation/mic/mpssd/micctrl173
-rwxr-xr-xDocumentation/mic/mpssd/mpss200
-rw-r--r--Documentation/mic/mpssd/mpssd.c1826
-rw-r--r--Documentation/mic/mpssd/mpssd.h103
-rw-r--r--Documentation/mic/mpssd/sysfs.c102
-rw-r--r--Documentation/misc-devices/Makefile1
-rw-r--r--Documentation/misc-devices/mei/.gitignore1
-rw-r--r--Documentation/misc-devices/mei/Makefile5
-rw-r--r--Documentation/misc-devices/mei/TODO2
-rw-r--r--Documentation/misc-devices/mei/mei-amt-version.c479
-rw-r--r--Documentation/networking/00-INDEX2
-rw-r--r--Documentation/networking/Makefile1
-rw-r--r--Documentation/networking/timestamping/.gitignore3
-rw-r--r--Documentation/networking/timestamping/Makefile14
-rw-r--r--Documentation/networking/timestamping/hwtstamp_config.c134
-rw-r--r--Documentation/networking/timestamping/timestamping.c528
-rw-r--r--Documentation/networking/timestamping/txtimestamp.c549
-rw-r--r--Documentation/pcmcia/.gitignore1
-rw-r--r--Documentation/pcmcia/Makefile7
-rw-r--r--Documentation/pcmcia/crc32hash.c32
-rw-r--r--Documentation/pcmcia/devicetable.txt4
-rw-r--r--Documentation/prctl/.gitignore3
-rw-r--r--Documentation/prctl/Makefile10
-rw-r--r--Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c97
-rw-r--r--Documentation/prctl/disable-tsc-on-off-stress-test.c96
-rw-r--r--Documentation/prctl/disable-tsc-test.c95
-rw-r--r--Documentation/ptp/.gitignore1
-rw-r--r--Documentation/ptp/Makefile8
-rw-r--r--Documentation/ptp/testptp.c523
-rw-r--r--Documentation/ptp/testptp.mk33
-rw-r--r--Documentation/spi/00-INDEX2
-rw-r--r--Documentation/timers/.gitignore1
-rw-r--r--Documentation/timers/00-INDEX4
-rw-r--r--Documentation/timers/Makefile5
-rw-r--r--Documentation/timers/hpet.txt2
-rw-r--r--Documentation/timers/hpet_example.c294
-rw-r--r--Documentation/vDSO/.gitignore2
-rw-r--r--Documentation/vDSO/Makefile17
-rw-r--r--Documentation/vDSO/parse_vdso.c269
-rw-r--r--Documentation/vDSO/vdso_standalone_test_x86.c128
-rw-r--r--Documentation/vDSO/vdso_test.c52
-rw-r--r--Documentation/watchdog/Makefile1
-rw-r--r--Documentation/watchdog/src/.gitignore2
-rw-r--r--Documentation/watchdog/src/Makefile5
-rw-r--r--Documentation/watchdog/src/watchdog-simple.c24
-rw-r--r--Documentation/watchdog/src/watchdog-test.c105
-rw-r--r--Documentation/watchdog/watchdog-api.txt2
-rw-r--r--Documentation/watchdog/wdt.txt2
78 files changed, 16 insertions, 7415 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX
index cb9a6c6fa83b..3acc4f1a6f84 100644
--- a/Documentation/00-INDEX
+++ b/Documentation/00-INDEX
@@ -46,7 +46,8 @@ IRQ.txt
Intel-IOMMU.txt
- basic info on the Intel IOMMU virtualization support.
Makefile
- - some files in Documentation dir are actually sample code to build
+ - This file does nothing. Removing it breaks make htmldocs and
+ make distclean.
ManagementStyle
- how to (attempt to) manage kernel hackers.
RCU/
diff --git a/Documentation/Makefile b/Documentation/Makefile
index de955e151af8..c2a469112c37 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -1,3 +1 @@
-subdir-y := accounting auxdisplay blackfin \
- filesystems filesystems ia64 laptops mic misc-devices \
- networking pcmcia prctl ptp timers vDSO watchdog
+subdir-y :=
diff --git a/Documentation/accounting/.gitignore b/Documentation/accounting/.gitignore
deleted file mode 100644
index 86485203c4ae..000000000000
--- a/Documentation/accounting/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-getdelays
diff --git a/Documentation/accounting/Makefile b/Documentation/accounting/Makefile
deleted file mode 100644
index 7e232cb6fd7d..000000000000
--- a/Documentation/accounting/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-# List of programs to build
-hostprogs-y := getdelays
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
-
-HOSTCFLAGS_getdelays.o += -I$(objtree)/usr/include
diff --git a/Documentation/accounting/delay-accounting.txt b/Documentation/accounting/delay-accounting.txt
index 8a12f0730c94..042ea59b5853 100644
--- a/Documentation/accounting/delay-accounting.txt
+++ b/Documentation/accounting/delay-accounting.txt
@@ -54,9 +54,9 @@ are sent to userspace without requiring a command. If it is the last exiting
task of a thread group, the per-tgid statistics are also sent. More details
are given in the taskstats interface description.
-The getdelays.c userspace utility in this directory allows simple commands to
-be run and the corresponding delay statistics to be displayed. It also serves
-as an example of using the taskstats interface.
+The getdelays.c userspace utility in tools/accounting directory allows simple
+commands to be run and the corresponding delay statistics to be displayed. It
+also serves as an example of using the taskstats interface.
Usage
-----
diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c
deleted file mode 100644
index b5ca536e56a8..000000000000
--- a/Documentation/accounting/getdelays.c
+++ /dev/null
@@ -1,550 +0,0 @@
-/* getdelays.c
- *
- * Utility to get per-pid and per-tgid delay accounting statistics
- * Also illustrates usage of the taskstats interface
- *
- * Copyright (C) Shailabh Nagar, IBM Corp. 2005
- * Copyright (C) Balbir Singh, IBM Corp. 2006
- * Copyright (c) Jay Lan, SGI. 2006
- *
- * Compile with
- * gcc -I/usr/src/linux/include getdelays.c -o getdelays
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <unistd.h>
-#include <poll.h>
-#include <string.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/socket.h>
-#include <sys/wait.h>
-#include <signal.h>
-
-#include <linux/genetlink.h>
-#include <linux/taskstats.h>
-#include <linux/cgroupstats.h>
-
-/*
- * Generic macros for dealing with netlink sockets. Might be duplicated
- * elsewhere. It is recommended that commercial grade applications use
- * libnl or libnetlink and use the interfaces provided by the library
- */
-#define GENLMSG_DATA(glh) ((void *)(NLMSG_DATA(glh) + GENL_HDRLEN))
-#define GENLMSG_PAYLOAD(glh) (NLMSG_PAYLOAD(glh, 0) - GENL_HDRLEN)
-#define NLA_DATA(na) ((void *)((char*)(na) + NLA_HDRLEN))
-#define NLA_PAYLOAD(len) (len - NLA_HDRLEN)
-
-#define err(code, fmt, arg...) \
- do { \
- fprintf(stderr, fmt, ##arg); \
- exit(code); \
- } while (0)
-
-int done;
-int rcvbufsz;
-char name[100];
-int dbg;
-int print_delays;
-int print_io_accounting;
-int print_task_context_switch_counts;
-
-#define PRINTF(fmt, arg...) { \
- if (dbg) { \
- printf(fmt, ##arg); \
- } \
- }
-
-/* Maximum size of response requested or message sent */
-#define MAX_MSG_SIZE 1024
-/* Maximum number of cpus expected to be specified in a cpumask */
-#define MAX_CPUS 32
-
-struct msgtemplate {
- struct nlmsghdr n;
- struct genlmsghdr g;
- char buf[MAX_MSG_SIZE];
-};
-
-char cpumask[100+6*MAX_CPUS];
-
-static void usage(void)
-{
- fprintf(stderr, "getdelays [-dilv] [-w logfile] [-r bufsize] "
- "[-m cpumask] [-t tgid] [-p pid]\n");
- fprintf(stderr, " -d: print delayacct stats\n");
- fprintf(stderr, " -i: print IO accounting (works only with -p)\n");
- fprintf(stderr, " -l: listen forever\n");
- fprintf(stderr, " -v: debug on\n");
- fprintf(stderr, " -C: container path\n");
-}
-
-/*
- * Create a raw netlink socket and bind
- */
-static int create_nl_socket(int protocol)
-{
- int fd;
- struct sockaddr_nl local;
-
- fd = socket(AF_NETLINK, SOCK_RAW, protocol);
- if (fd < 0)
- return -1;
-
- if (rcvbufsz)
- if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF,
- &rcvbufsz, sizeof(rcvbufsz)) < 0) {
- fprintf(stderr, "Unable to set socket rcv buf size to %d\n",
- rcvbufsz);
- goto error;
- }
-
- memset(&local, 0, sizeof(local));
- local.nl_family = AF_NETLINK;
-
- if (bind(fd, (struct sockaddr *) &local, sizeof(local)) < 0)
- goto error;
-
- return fd;
-error:
- close(fd);
- return -1;
-}
-
-
-static int send_cmd(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
- __u8 genl_cmd, __u16 nla_type,
- void *nla_data, int nla_len)
-{
- struct nlattr *na;
- struct sockaddr_nl nladdr;
- int r, buflen;
- char *buf;
-
- struct msgtemplate msg;
-
- msg.n.nlmsg_len = NLMSG_LENGTH(GENL_HDRLEN);
- msg.n.nlmsg_type = nlmsg_type;
- msg.n.nlmsg_flags = NLM_F_REQUEST;
- msg.n.nlmsg_seq = 0;
- msg.n.nlmsg_pid = nlmsg_pid;
- msg.g.cmd = genl_cmd;
- msg.g.version = 0x1;
- na = (struct nlattr *) GENLMSG_DATA(&msg);
- na->nla_type = nla_type;
- na->nla_len = nla_len + 1 + NLA_HDRLEN;
- memcpy(NLA_DATA(na), nla_data, nla_len);
- msg.n.nlmsg_len += NLMSG_ALIGN(na->nla_len);
-
- buf = (char *) &msg;
- buflen = msg.n.nlmsg_len ;
- memset(&nladdr, 0, sizeof(nladdr));
- nladdr.nl_family = AF_NETLINK;
- while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *) &nladdr,
- sizeof(nladdr))) < buflen) {
- if (r > 0) {
- buf += r;
- buflen -= r;
- } else if (errno != EAGAIN)
- return -1;
- }
- return 0;
-}
-
-
-/*
- * Probe the controller in genetlink to find the family id
- * for the TASKSTATS family
- */
-static int get_family_id(int sd)
-{
- struct {
- struct nlmsghdr n;
- struct genlmsghdr g;
- char buf[256];
- } ans;
-
- int id = 0, rc;
- struct nlattr *na;
- int rep_len;
-
- strcpy(name, TASKSTATS_GENL_NAME);
- rc = send_cmd(sd, GENL_ID_CTRL, getpid(), CTRL_CMD_GETFAMILY,
- CTRL_ATTR_FAMILY_NAME, (void *)name,
- strlen(TASKSTATS_GENL_NAME)+1);
- if (rc < 0)
- return 0; /* sendto() failure? */
-
- rep_len = recv(sd, &ans, sizeof(ans), 0);
- if (ans.n.nlmsg_type == NLMSG_ERROR ||
- (rep_len < 0) || !NLMSG_OK((&ans.n), rep_len))
- return 0;
-
- na = (struct nlattr *) GENLMSG_DATA(&ans);
- na = (struct nlattr *) ((char *) na + NLA_ALIGN(na->nla_len));
- if (na->nla_type == CTRL_ATTR_FAMILY_ID) {
- id = *(__u16 *) NLA_DATA(na);
- }
- return id;
-}
-
-#define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
-
-static void print_delayacct(struct taskstats *t)
-{
- printf("\n\nCPU %15s%15s%15s%15s%15s\n"
- " %15llu%15llu%15llu%15llu%15.3fms\n"
- "IO %15s%15s%15s\n"
- " %15llu%15llu%15llums\n"
- "SWAP %15s%15s%15s\n"
- " %15llu%15llu%15llums\n"
- "RECLAIM %12s%15s%15s\n"
- " %15llu%15llu%15llums\n",
- "count", "real total", "virtual total",
- "delay total", "delay average",
- (unsigned long long)t->cpu_count,
- (unsigned long long)t->cpu_run_real_total,
- (unsigned long long)t->cpu_run_virtual_total,
- (unsigned long long)t->cpu_delay_total,
- average_ms((double)t->cpu_delay_total, t->cpu_count),
- "count", "delay total", "delay average",
- (unsigned long long)t->blkio_count,
- (unsigned long long)t->blkio_delay_total,
- average_ms(t->blkio_delay_total, t->blkio_count),
- "count", "delay total", "delay average",
- (unsigned long long)t->swapin_count,
- (unsigned long long)t->swapin_delay_total,
- average_ms(t->swapin_delay_total, t->swapin_count),
- "count", "delay total", "delay average",
- (unsigned long long)t->freepages_count,
- (unsigned long long)t->freepages_delay_total,
- average_ms(t->freepages_delay_total, t->freepages_count));
-}
-
-static void task_context_switch_counts(struct taskstats *t)
-{
- printf("\n\nTask %15s%15s\n"
- " %15llu%15llu\n",
- "voluntary", "nonvoluntary",
- (unsigned long long)t->nvcsw, (unsigned long long)t->nivcsw);
-}
-
-static void print_cgroupstats(struct cgroupstats *c)
-{
- printf("sleeping %llu, blocked %llu, running %llu, stopped %llu, "
- "uninterruptible %llu\n", (unsigned long long)c->nr_sleeping,
- (unsigned long long)c->nr_io_wait,
- (unsigned long long)c->nr_running,
- (unsigned long long)c->nr_stopped,
- (unsigned long long)c->nr_uninterruptible);
-}
-
-
-static void print_ioacct(struct taskstats *t)
-{
- printf("%s: read=%llu, write=%llu, cancelled_write=%llu\n",
- t->ac_comm,
- (unsigned long long)t->read_bytes,
- (unsigned long long)t->write_bytes,
- (unsigned long long)t->cancelled_write_bytes);
-}
-
-int main(int argc, char *argv[])
-{
- int c, rc, rep_len, aggr_len, len2;
- int cmd_type = TASKSTATS_CMD_ATTR_UNSPEC;
- __u16 id;
- __u32 mypid;
-
- struct nlattr *na;
- int nl_sd = -1;
- int len = 0;
- pid_t tid = 0;
- pid_t rtid = 0;
-
- int fd = 0;
- int count = 0;
- int write_file = 0;
- int maskset = 0;
- char *logfile = NULL;
- int loop = 0;
- int containerset = 0;
- char *containerpath = NULL;
- int cfd = 0;
- int forking = 0;
- sigset_t sigset;
-
- struct msgtemplate msg;
-
- while (!forking) {
- c = getopt(argc, argv, "qdiw:r:m:t:p:vlC:c:");
- if (c < 0)
- break;
-
- switch (c) {
- case 'd':
- printf("print delayacct stats ON\n");
- print_delays = 1;
- break;
- case 'i':
- printf("printing IO accounting\n");
- print_io_accounting = 1;
- break;
- case 'q':
- printf("printing task/process context switch rates\n");
- print_task_context_switch_counts = 1;
- break;
- case 'C':
- containerset = 1;
- containerpath = optarg;
- break;
- case 'w':
- logfile = strdup(optarg);
- printf("write to file %s\n", logfile);
- write_file = 1;
- break;
- case 'r':
- rcvbufsz = atoi(optarg);
- printf("receive buf size %d\n", rcvbufsz);
- if (rcvbufsz < 0)
- err(1, "Invalid rcv buf size\n");
- break;
- case 'm':
- strncpy(cpumask, optarg, sizeof(cpumask));
- cpumask[sizeof(cpumask) - 1] = '\0';
- maskset = 1;
- printf("cpumask %s maskset %d\n", cpumask, maskset);
- break;
- case 't':
- tid = atoi(optarg);
- if (!tid)
- err(1, "Invalid tgid\n");
- cmd_type = TASKSTATS_CMD_ATTR_TGID;
- break;
- case 'p':
- tid = atoi(optarg);
- if (!tid)
- err(1, "Invalid pid\n");
- cmd_type = TASKSTATS_CMD_ATTR_PID;
- break;
- case 'c':
-
- /* Block SIGCHLD for sigwait() later */
- if (sigemptyset(&sigset) == -1)
- err(1, "Failed to empty sigset");
- if (sigaddset(&sigset, SIGCHLD))
- err(1, "Failed to set sigchld in sigset");
- sigprocmask(SIG_BLOCK, &sigset, NULL);
-
- /* fork/exec a child */
- tid = fork();
- if (tid < 0)
- err(1, "Fork failed\n");
- if (tid == 0)
- if (execvp(argv[optind - 1],
- &argv[optind - 1]) < 0)
- exit(-1);
-
- /* Set the command type and avoid further processing */
- cmd_type = TASKSTATS_CMD_ATTR_PID;
- forking = 1;
- break;
- case 'v':
- printf("debug on\n");
- dbg = 1;
- break;
- case 'l':
- printf("listen forever\n");
- loop = 1;
- break;
- default:
- usage();
- exit(-1);
- }
- }
-
- if (write_file) {
- fd = open(logfile, O_WRONLY | O_CREAT | O_TRUNC,
- S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
- if (fd == -1) {
- perror("Cannot open output file\n");
- exit(1);
- }
- }
-
- nl_sd = create_nl_socket(NETLINK_GENERIC);
- if (nl_sd < 0)
- err(1, "error creating Netlink socket\n");
-
-
- mypid = getpid();
- id = get_family_id(nl_sd);
- if (!id) {
- fprintf(stderr, "Error getting family id, errno %d\n", errno);
- goto err;
- }
- PRINTF("family id %d\n", id);
-
- if (maskset) {
- rc = send_cmd(nl_sd, id, mypid, TASKSTATS_CMD_GET,
- TASKSTATS_CMD_ATTR_REGISTER_CPUMASK,
- &cpumask, strlen(cpumask) + 1);
- PRINTF("Sent register cpumask, retval %d\n", rc);
- if (rc < 0) {
- fprintf(stderr, "error sending register cpumask\n");
- goto err;
- }
- }
-
- if (tid && containerset) {
- fprintf(stderr, "Select either -t or -C, not both\n");
- goto err;
- }
-
- /*
- * If we forked a child, wait for it to exit. Cannot use waitpid()
- * as all the delicious data would be reaped as part of the wait
- */
- if (tid && forking) {
- int sig_received;
- sigwait(&sigset, &sig_received);
- }
-
- if (tid) {
- rc = send_cmd(nl_sd, id, mypid, TASKSTATS_CMD_GET,
- cmd_type, &tid, sizeof(__u32));
- PRINTF("Sent pid/tgid, retval %d\n", rc);
- if (rc < 0) {
- fprintf(stderr, "error sending tid/tgid cmd\n");
- goto done;
- }
- }
-
- if (containerset) {
- cfd = open(containerpath, O_RDONLY);
- if (cfd < 0) {
- perror("error opening container file");
- goto err;
- }
- rc = send_cmd(nl_sd, id, mypid, CGROUPSTATS_CMD_GET,
- CGROUPSTATS_CMD_ATTR_FD, &cfd, sizeof(__u32));
- if (rc < 0) {
- perror("error sending cgroupstats command");
- goto err;
- }
- }
- if (!maskset && !tid && !containerset) {
- usage();
- goto err;
- }
-
- do {
- rep_len = recv(nl_sd, &msg, sizeof(msg), 0);
- PRINTF("received %d bytes\n", rep_len);
-
- if (rep_len < 0) {
- fprintf(stderr, "nonfatal reply error: errno %d\n",
- errno);
- continue;
- }
- if (msg.n.nlmsg_type == NLMSG_ERROR ||
- !NLMSG_OK((&msg.n), rep_len)) {
- struct nlmsgerr *err = NLMSG_DATA(&msg);
- fprintf(stderr, "fatal reply error, errno %d\n",
- err->error);
- goto done;
- }
-
- PRINTF("nlmsghdr size=%zu, nlmsg_len=%d, rep_len=%d\n",
- sizeof(struct nlmsghdr), msg.n.nlmsg_len, rep_len);
-
-
- rep_len = GENLMSG_PAYLOAD(&msg.n);
-
- na = (struct nlattr *) GENLMSG_DATA(&msg);
- len = 0;
- while (len < rep_len) {
- len += NLA_ALIGN(na->nla_len);
- switch (na->nla_type) {
- case TASKSTATS_TYPE_AGGR_TGID:
- /* Fall through */
- case TASKSTATS_TYPE_AGGR_PID:
- aggr_len = NLA_PAYLOAD(na->nla_len);
- len2 = 0;
- /* For nested attributes, na follows */
- na = (struct nlattr *) NLA_DATA(na);
- done = 0;
- while (len2 < aggr_len) {
- switch (na->nla_type) {
- case TASKSTATS_TYPE_PID:
- rtid = *(int *) NLA_DATA(na);
- if (print_delays)
- printf("PID\t%d\n", rtid);
- break;
- case TASKSTATS_TYPE_TGID:
- rtid = *(int *) NLA_DATA(na);
- if (print_delays)
- printf("TGID\t%d\n", rtid);
- break;
- case TASKSTATS_TYPE_STATS:
- count++;
- if (print_delays)
- print_delayacct((struct taskstats *) NLA_DATA(na));
- if (print_io_accounting)
- print_ioacct((struct taskstats *) NLA_DATA(na));
- if (print_task_context_switch_counts)
- task_context_switch_counts((struct taskstats *) NLA_DATA(na));
- if (fd) {
- if (write(fd, NLA_DATA(na), na->nla_len) < 0) {
- err(1,"write error\n");
- }
- }
- if (!loop)
- goto done;
- break;
- case TASKSTATS_TYPE_NULL:
- break;
- default:
- fprintf(stderr, "Unknown nested"
- " nla_type %d\n",
- na->nla_type);
- break;
- }
- len2 += NLA_ALIGN(na->nla_len);
- na = (struct nlattr *)((char *)na +
- NLA_ALIGN(na->nla_len));
- }
- break;
-
- case CGROUPSTATS_TYPE_CGROUP_STATS:
- print_cgroupstats(NLA_DATA(na));
- break;
- default:
- fprintf(stderr, "Unknown nla_type %d\n",
- na->nla_type);
- case TASKSTATS_TYPE_NULL:
- break;
- }
- na = (struct nlattr *) (GENLMSG_DATA(&msg) + len);
- }
- } while (loop);
-done:
- if (maskset) {
- rc = send_cmd(nl_sd, id, mypid, TASKSTATS_CMD_GET,
- TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK,
- &cpumask, strlen(cpumask) + 1);
- printf("Sent deregister mask, retval %d\n", rc);
- if (rc < 0)
- err(rc, "error sending deregister cpumask\n");
- }
-err:
- close(nl_sd);
- if (fd)
- close(fd);
- if (cfd)
- close(cfd);
- return 0;
-}
diff --git a/Documentation/arm/00-INDEX b/Documentation/arm/00-INDEX
index dea011c8d7c7..b6e69fd371c4 100644
--- a/Documentation/arm/00-INDEX
+++ b/Documentation/arm/00-INDEX
@@ -8,8 +8,6 @@ Interrupts
- ARM Interrupt subsystem documentation
IXP4xx
- Intel IXP4xx Network processor.
-Makefile
- - Build sourcefiles as part of the Documentation-build for arm
Netwinder
- Netwinder specific documentation
Porting
diff --git a/Documentation/auxdisplay/.gitignore b/Documentation/auxdisplay/.gitignore
deleted file mode 100644
index 7af222860a96..000000000000
--- a/Documentation/auxdisplay/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-cfag12864b-example
diff --git a/Documentation/auxdisplay/Makefile b/Documentation/auxdisplay/Makefile
deleted file mode 100644
index ada4dac99ef4..000000000000
--- a/Documentation/auxdisplay/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-# List of programs to build
-hostprogs-y := cfag12864b-example
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
-
-HOSTCFLAGS_cfag12864b-example.o += -I$(objtree)/usr/include
diff --git a/Documentation/auxdisplay/cfag12864b b/Documentation/auxdisplay/cfag12864b
index eb7be393a510..12fd51b8de75 100644
--- a/Documentation/auxdisplay/cfag12864b
+++ b/Documentation/auxdisplay/cfag12864b
@@ -101,5 +101,5 @@ Although the LCD won't get updated until the next refresh time arrives.
Also, you can mmap the framebuffer: open & mmap, munmap & close...
which is the best option for most uses.
-Check Documentation/auxdisplay/cfag12864b-example.c
+Check samples/auxdisplay/cfag12864b-example.c
for a real working userspace complete program with usage examples.
diff --git a/Documentation/auxdisplay/cfag12864b-example.c b/Documentation/auxdisplay/cfag12864b-example.c
deleted file mode 100644
index e7823ffb1ca0..000000000000
--- a/Documentation/auxdisplay/cfag12864b-example.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- * Filename: cfag12864b-example.c
- * Version: 0.1.0
- * Description: cfag12864b LCD userspace example program
- * License: GPLv2
- *
- * Author: Copyright (C) Miguel Ojeda Sandonis
- * Date: 2006-10-31
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-/*
- * ------------------------
- * start of cfag12864b code
- * ------------------------
- */
-
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-
-#define CFAG12864B_WIDTH (128)
-#define CFAG12864B_HEIGHT (64)
-#define CFAG12864B_SIZE (128 * 64 / 8)
-#define CFAG12864B_BPB (8)
-#define CFAG12864B_ADDRESS(x, y) ((y) * CFAG12864B_WIDTH / \
- CFAG12864B_BPB + (x) / CFAG12864B_BPB)
-#define CFAG12864B_BIT(n) (((unsigned char) 1) << (n))
-
-#undef CFAG12864B_DOCHECK
-#ifdef CFAG12864B_DOCHECK
- #define CFAG12864B_CHECK(x, y) ((x) < CFAG12864B_WIDTH && \
- (y) < CFAG12864B_HEIGHT)
-#else
- #define CFAG12864B_CHECK(x, y) (1)
-#endif
-
-int cfag12864b_fd;
-unsigned char * cfag12864b_mem;
-unsigned char cfag12864b_buffer[CFAG12864B_SIZE];
-
-/*
- * init a cfag12864b framebuffer device
- *
- * No error: return = 0
- * Unable to open: return = -1
- * Unable to mmap: return = -2
- */
-static int cfag12864b_init(char *path)
-{
- cfag12864b_fd = open(path, O_RDWR);
- if (cfag12864b_fd == -1)
- return -1;
-
- cfag12864b_mem = mmap(0, CFAG12864B_SIZE, PROT_READ | PROT_WRITE,
- MAP_SHARED, cfag12864b_fd, 0);
- if (cfag12864b_mem == MAP_FAILED) {
- close(cfag12864b_fd);
- return -2;
- }
-
- return 0;
-}
-
-/*
- * exit a cfag12864b framebuffer device
- */
-static void cfag12864b_exit(void)
-{
- munmap(cfag12864b_mem, CFAG12864B_SIZE);
- close(cfag12864b_fd);
-}
-
-/*
- * set (x, y) pixel
- */
-static void cfag12864b_set(unsigned char x, unsigned char y)
-{
- if (CFAG12864B_CHECK(x, y))
- cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] |=
- CFAG12864B_BIT(x % CFAG12864B_BPB);
-}
-
-/*
- * unset (x, y) pixel
- */
-static void cfag12864b_unset(unsigned char x, unsigned char y)
-{
- if (CFAG12864B_CHECK(x, y))
- cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] &=
- ~CFAG12864B_BIT(x % CFAG12864B_BPB);
-}
-
-/*
- * is set (x, y) pixel?
- *
- * Pixel off: return = 0
- * Pixel on: return = 1
- */
-static unsigned char cfag12864b_isset(unsigned char x, unsigned char y)
-{
- if (CFAG12864B_CHECK(x, y))
- if (cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] &
- CFAG12864B_BIT(x % CFAG12864B_BPB))
- return 1;
-
- return 0;
-}
-
-/*
- * not (x, y) pixel
- */
-static void cfag12864b_not(unsigned char x, unsigned char y)
-{
- if (cfag12864b_isset(x, y))
- cfag12864b_unset(x, y);
- else
- cfag12864b_set(x, y);
-}
-
-/*
- * fill (set all pixels)
- */
-static void cfag12864b_fill(void)
-{
- unsigned short i;
-
- for (i = 0; i < CFAG12864B_SIZE; i++)
- cfag12864b_buffer[i] = 0xFF;
-}
-
-/*
- * clear (unset all pixels)
- */
-static void cfag12864b_clear(void)
-{
- unsigned short i;
-
- for (i = 0; i < CFAG12864B_SIZE; i++)
- cfag12864b_buffer[i] = 0;
-}
-
-/*
- * format a [128*64] matrix
- *
- * Pixel off: src[i] = 0
- * Pixel on: src[i] > 0
- */
-static void cfag12864b_format(unsigned char * matrix)
-{
- unsigned char i, j, n;
-
- for (i = 0; i < CFAG12864B_HEIGHT; i++)
- for (j = 0; j < CFAG12864B_WIDTH / CFAG12864B_BPB; j++) {
- cfag12864b_buffer[i * CFAG12864B_WIDTH / CFAG12864B_BPB +
- j] = 0;
- for (n = 0; n < CFAG12864B_BPB; n++)
- if (matrix[i * CFAG12864B_WIDTH +
- j * CFAG12864B_BPB + n])
- cfag12864b_buffer[i * CFAG12864B_WIDTH /
- CFAG12864B_BPB + j] |=
- CFAG12864B_BIT(n);
- }
-}
-
-/*
- * blit buffer to lcd
- */
-static void cfag12864b_blit(void)
-{
- memcpy(cfag12864b_mem, cfag12864b_buffer, CFAG12864B_SIZE);
-}
-
-/*
- * ----------------------
- * end of cfag12864b code
- * ----------------------
- */
-
-#include <stdio.h>
-
-#define EXAMPLES 6
-
-static void example(unsigned char n)
-{
- unsigned short i, j;
- unsigned char matrix[CFAG12864B_WIDTH * CFAG12864B_HEIGHT];
-
- if (n > EXAMPLES)
- return;
-
- printf("Example %i/%i - ", n, EXAMPLES);
-
- switch (n) {
- case 1:
- printf("Draw points setting bits");
- cfag12864b_clear();
- for (i = 0; i < CFAG12864B_WIDTH; i += 2)
- for (j = 0; j < CFAG12864B_HEIGHT; j += 2)
- cfag12864b_set(i, j);
- break;
-
- case 2:
- printf("Clear the LCD");
- cfag12864b_clear();
- break;
-
- case 3:
- printf("Draw rows formatting a [128*64] matrix");
- memset(matrix, 0, CFAG12864B_WIDTH * CFAG12864B_HEIGHT);
- for (i = 0; i < CFAG12864B_WIDTH; i++)
- for (j = 0; j < CFAG12864B_HEIGHT; j += 2)
- matrix[j * CFAG12864B_WIDTH + i] = 1;
- cfag12864b_format(matrix);
- break;
-
- case 4:
- printf("Fill the lcd");
- cfag12864b_fill();
- break;
-
- case 5:
- printf("Draw columns unsetting bits");
- for (i = 0; i < CFAG12864B_WIDTH; i += 2)
- for (j = 0; j < CFAG12864B_HEIGHT; j++)
- cfag12864b_unset(i, j);
- break;
-
- case 6:
- printf("Do negative not-ing all bits");
- for (i = 0; i < CFAG12864B_WIDTH; i++)
- for (j = 0; j < CFAG12864B_HEIGHT; j ++)
- cfag12864b_not(i, j);
- break;
- }
-
- puts(" - [Press Enter]");
-}
-
-int main(int argc, char *argv[])
-{
- unsigned char n;
-
- if (argc != 2) {
- printf(
- "Sintax: %s fbdev\n"
- "Usually: /dev/fb0, /dev/fb1...\n", argv[0]);
- return -1;
- }
-
- if (cfag12864b_init(argv[1])) {
- printf("Can't init %s fbdev\n", argv[1]);
- return -2;
- }
-
- for (n = 1; n <= EXAMPLES; n++) {
- example(n);
- cfag12864b_blit();
- while (getchar() != '\n');
- }
-
- cfag12864b_exit();
-
- return 0;
-}
diff --git a/Documentation/blackfin/00-INDEX b/Documentation/blackfin/00-INDEX
index c54fcdd4ae9f..265a1effebde 100644
--- a/Documentation/blackfin/00-INDEX
+++ b/Documentation/blackfin/00-INDEX
@@ -1,10 +1,6 @@
00-INDEX
- This file
-Makefile
- - Makefile for gptimers example file.
bfin-gpio-notes.txt
- Notes in developing/using bfin-gpio driver.
bfin-spi-notes.txt
- Notes for using bfin spi bus driver.
-gptimers-example.c
- - gptimers example
diff --git a/Documentation/blackfin/Makefile b/Documentation/blackfin/Makefile
deleted file mode 100644
index 6782c58fbc29..000000000000
--- a/Documentation/blackfin/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-ifneq ($(CONFIG_BLACKFIN),)
-ifneq ($(CONFIG_BFIN_GPTIMERS),)
-obj-m := gptimers-example.o
-endif
-endif
diff --git a/Documentation/blackfin/gptimers-example.c b/Documentation/blackfin/gptimers-example.c
deleted file mode 100644
index 283eba993d9d..000000000000
--- a/Documentation/blackfin/gptimers-example.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Simple gptimers example
- * http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:drivers:gptimers
- *
- * Copyright 2007-2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/module.h>
-
-#include <asm/gptimers.h>
-#include <asm/portmux.h>
-
-/* ... random driver includes ... */
-
-#define DRIVER_NAME "gptimer_example"
-
-#ifdef IRQ_TIMER5
-#define SAMPLE_IRQ_TIMER IRQ_TIMER5
-#else
-#define SAMPLE_IRQ_TIMER IRQ_TIMER2
-#endif
-
-struct gptimer_data {
- uint32_t period, width;
-};
-static struct gptimer_data data;
-
-/* ... random driver state ... */
-
-static irqreturn_t gptimer_example_irq(int irq, void *dev_id)
-{
- struct gptimer_data *data = dev_id;
-
- /* make sure it was our timer which caused the interrupt */
- if (!get_gptimer_intr(TIMER5_id))
- return IRQ_NONE;
-
- /* read the width/period values that were captured for the waveform */
- data->width = get_gptimer_pwidth(TIMER5_id);
- data->period = get_gptimer_period(TIMER5_id);
-
- /* acknowledge the interrupt */
- clear_gptimer_intr(TIMER5_id);
-
- /* tell the upper layers we took care of things */
- return IRQ_HANDLED;
-}
-
-/* ... random driver code ... */
-
-static int __init gptimer_example_init(void)
-{
- int ret;
-
- /* grab the peripheral pins */
- ret = peripheral_request(P_TMR5, DRIVER_NAME);
- if (ret) {
- printk(KERN_NOTICE DRIVER_NAME ": peripheral request failed\n");
- return ret;
- }
-
- /* grab the IRQ for the timer */
- ret = request_irq(SAMPLE_IRQ_TIMER, gptimer_example_irq,
- IRQF_SHARED, DRIVER_NAME, &data);
- if (ret) {
- printk(KERN_NOTICE DRIVER_NAME ": IRQ request failed\n");
- peripheral_free(P_TMR5);
- return ret;
- }
-
- /* setup the timer and enable it */
- set_gptimer_config(TIMER5_id,
- WDTH_CAP | PULSE_HI | PERIOD_CNT | IRQ_ENA);
- enable_gptimers(TIMER5bit);
-
- return 0;
-}
-module_init(gptimer_example_init);
-
-static void __exit gptimer_example_exit(void)
-{
- disable_gptimers(TIMER5bit);
- free_irq(SAMPLE_IRQ_TIMER, &data);
- peripheral_free(P_TMR5);
-}
-module_exit(gptimer_example_exit);
-
-MODULE_LICENSE("BSD");
diff --git a/Documentation/filesystems/.gitignore b/Documentation/filesystems/.gitignore
deleted file mode 100644
index 31d6e426b6d4..000000000000
--- a/Documentation/filesystems/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-dnotify_test
diff --git a/Documentation/filesystems/00-INDEX b/Documentation/filesystems/00-INDEX
index 9922939e7d99..f66e748fc5e4 100644
--- a/Documentation/filesystems/00-INDEX
+++ b/Documentation/filesystems/00-INDEX
@@ -2,8 +2,6 @@
- this file (info on some of the filesystems supported by linux).
Locking
- info on locking rules as they pertain to Linux VFS.
-Makefile
- - Makefile for building the filsystems-part of DocBook.
9p.txt
- 9p (v9fs) is an implementation of the Plan 9 remote fs protocol.
adfs.txt
diff --git a/Documentation/filesystems/Makefile b/Documentation/filesystems/Makefile
deleted file mode 100644
index 883010ce5e35..000000000000
--- a/Documentation/filesystems/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# List of programs to build
-hostprogs-y := dnotify_test
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
diff --git a/Documentation/filesystems/dnotify_test.c b/Documentation/filesystems/dnotify_test.c
deleted file mode 100644
index 8b37b4a1e18d..000000000000
--- a/Documentation/filesystems/dnotify_test.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#define _GNU_SOURCE /* needed to get the defines */
-#include <fcntl.h> /* in glibc 2.2 this has the needed
- values defined */
-#include <signal.h>
-#include <stdio.h>
-#include <unistd.h>
-
-static volatile int event_fd;
-
-static void handler(int sig, siginfo_t *si, void *data)
-{
- event_fd = si->si_fd;
-}
-
-int main(void)
-{
- struct sigaction act;
- int fd;
-
- act.sa_sigaction = handler;
- sigemptyset(&act.sa_mask);
- act.sa_flags = SA_SIGINFO;
- sigaction(SIGRTMIN + 1, &act, NULL);
-
- fd = open(".", O_RDONLY);
- fcntl(fd, F_SETSIG, SIGRTMIN + 1);
- fcntl(fd, F_NOTIFY, DN_MODIFY|DN_CREATE|DN_MULTISHOT);
- /* we will now be notified if any of the files
- in "." is modified or new files are created */
- while (1) {
- pause();
- printf("Got event on fd=%d\n", event_fd);
- }
-}
diff --git a/Documentation/ia64/.gitignore b/Documentation/ia64/.gitignore
deleted file mode 100644
index ab806edc8732..000000000000
--- a/Documentation/ia64/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-aliasing-test
diff --git a/Documentation/ia64/Makefile b/Documentation/ia64/Makefile
deleted file mode 100644
index d493163affe7..000000000000
--- a/Documentation/ia64/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# List of programs to build
-hostprogs-y := aliasing-test
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
diff --git a/Documentation/ia64/aliasing-test.c b/Documentation/ia64/aliasing-test.c
deleted file mode 100644
index 62a190d45f38..000000000000
--- a/Documentation/ia64/aliasing-test.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/*
- * Exercise /dev/mem mmap cases that have been troublesome in the past
- *
- * (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
- * Bjorn Helgaas <bjorn.helgaas@hp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <fcntl.h>
-#include <fnmatch.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <linux/pci.h>
-
-int sum;
-
-static int map_mem(char *path, off_t offset, size_t length, int touch)
-{
- int fd, rc;
- void *addr;
- int *c;
-
- fd = open(path, O_RDWR);
- if (fd == -1) {
- perror(path);
- return -1;
- }
-
- if (fnmatch("/proc/bus/pci/*", path, 0) == 0) {
- rc = ioctl(fd, PCIIOC_MMAP_IS_MEM);
- if (rc == -1)
- perror("PCIIOC_MMAP_IS_MEM ioctl");
- }
-
- addr = mmap(NULL, length, PROT_READ|PROT_WRITE, MAP_SHARED, fd, offset);
- if (addr == MAP_FAILED)
- return 1;
-
- if (touch) {
- c = (int *) addr;
- while (c < (int *) (addr + length))
- sum += *c++;
- }
-
- rc = munmap(addr, length);
- if (rc == -1) {
- perror("munmap");
- return -1;
- }
-
- close(fd);
- return 0;
-}
-
-static int scan_tree(char *path, char *file, off_t offset, size_t length, int touch)
-{
- struct dirent **namelist;
- char *name, *path2;
- int i, n, r, rc = 0, result = 0;
- struct stat buf;
-
- n = scandir(path, &namelist, 0, alphasort);
- if (n < 0) {
- perror("scandir");
- return -1;
- }
-
- for (i = 0; i < n; i++) {
- name = namelist[i]->d_name;
-
- if (fnmatch(".", name, 0) == 0)
- goto skip;
- if (fnmatch("..", name, 0) == 0)
- goto skip;
-
- path2 = malloc(strlen(path) + strlen(name) + 3);
- strcpy(path2, path);
- strcat(path2, "/");
- strcat(path2, name);
-
- if (fnmatch(file, name, 0) == 0) {
- rc = map_mem(path2, offset, length, touch);
- if (rc == 0)
- fprintf(stderr, "PASS: %s 0x%lx-0x%lx is %s\n", path2, offset, offset + length, touch ? "readable" : "mappable");
- else if (rc > 0)
- fprintf(stderr, "PASS: %s 0x%lx-0x%lx not mappable\n", path2, offset, offset + length);
- else {
- fprintf(stderr, "FAIL: %s 0x%lx-0x%lx not accessible\n", path2, offset, offset + length);
- return rc;
- }
- } else {
- r = lstat(path2, &buf);
- if (r == 0 && S_ISDIR(buf.st_mode)) {
- rc = scan_tree(path2, file, offset, length, touch);
- if (rc < 0)
- return rc;
- }
- }
-
- result |= rc;
- free(path2);
-
-skip:
- free(namelist[i]);
- }
- free(namelist);
- return result;
-}
-
-char buf[1024];
-
-static int read_rom(char *path)
-{
- int fd, rc;
- size_t size = 0;
-
- fd = open(path, O_RDWR);
- if (fd == -1) {
- perror(path);
- return -1;
- }
-
- rc = write(fd, "1", 2);
- if (rc <= 0) {
- close(fd);
- perror("write");
- return -1;
- }
-
- do {
- rc = read(fd, buf, sizeof(buf));
- if (rc > 0)
- size += rc;
- } while (rc > 0);
-
- close(fd);
- return size;
-}
-
-static int scan_rom(char *path, char *file)
-{
- struct dirent **namelist;
- char *name, *path2;
- int i, n, r, rc = 0, result = 0;
- struct stat buf;
-
- n = scandir(path, &namelist, 0, alphasort);
- if (n < 0) {
- perror("scandir");
- return -1;
- }
-
- for (i = 0; i < n; i++) {
- name = namelist[i]->d_name;
-
- if (fnmatch(".", name, 0) == 0)
- goto skip;
- if (fnmatch("..", name, 0) == 0)
- goto skip;
-
- path2 = malloc(strlen(path) + strlen(name) + 3);
- strcpy(path2, path);
- strcat(path2, "/");
- strcat(path2, name);
-
- if (fnmatch(file, name, 0) == 0) {
- rc = read_rom(path2);
-
- /*
- * It's OK if the ROM is unreadable. Maybe there
- * is no ROM, or some other error occurred. The
- * important thing is that no MCA happened.
- */
- if (rc > 0)
- fprintf(stderr, "PASS: %s read %d bytes\n", path2, rc);
- else {
- fprintf(stderr, "PASS: %s not readable\n", path2);
- return rc;
- }
- } else {
- r = lstat(path2, &buf);
- if (r == 0 && S_ISDIR(buf.st_mode)) {
- rc = scan_rom(path2, file);
- if (rc < 0)
- return rc;
- }
- }
-
- result |= rc;
- free(path2);
-
-skip:
- free(namelist[i]);
- }
- free(namelist);
- return result;
-}
-
-int main(void)
-{
- int rc;
-
- if (map_mem("/dev/mem", 0, 0xA0000, 1) == 0)
- fprintf(stderr, "PASS: /dev/mem 0x0-0xa0000 is readable\n");
- else
- fprintf(stderr, "FAIL: /dev/mem 0x0-0xa0000 not accessible\n");
-
- /*
- * It's not safe to blindly read the VGA frame buffer. If you know
- * how to poke the card the right way, it should respond, but it's
- * not safe in general. Many machines, e.g., Intel chipsets, cover
- * up a non-responding card by just returning -1, but others will
- * report the failure as a machine check.
- */
- if (map_mem("/dev/mem", 0xA0000, 0x20000, 0) == 0)
- fprintf(stderr, "PASS: /dev/mem 0xa0000-0xc0000 is mappable\n");
- else
- fprintf(stderr, "FAIL: /dev/mem 0xa0000-0xc0000 not accessible\n");
-
- if (map_mem("/dev/mem", 0xC0000, 0x40000, 1) == 0)
- fprintf(stderr, "PASS: /dev/mem 0xc0000-0x100000 is readable\n");
- else
- fprintf(stderr, "FAIL: /dev/mem 0xc0000-0x100000 not accessible\n");
-
- /*
- * Often you can map all the individual pieces above (0-0xA0000,
- * 0xA0000-0xC0000, and 0xC0000-0x100000), but can't map the whole
- * thing at once. This is because the individual pieces use different
- * attributes, and there's no single attribute supported over the
- * whole region.
- */
- rc = map_mem("/dev/mem", 0, 1024*1024, 0);
- if (rc == 0)
- fprintf(stderr, "PASS: /dev/mem 0x0-0x100000 is mappable\n");
- else if (rc > 0)
- fprintf(stderr, "PASS: /dev/mem 0x0-0x100000 not mappable\n");
- else
- fprintf(stderr, "FAIL: /dev/mem 0x0-0x100000 not accessible\n");
-
- scan_tree("/sys/class/pci_bus", "legacy_mem", 0, 0xA0000, 1);
- scan_tree("/sys/class/pci_bus", "legacy_mem", 0xA0000, 0x20000, 0);
- scan_tree("/sys/class/pci_bus", "legacy_mem", 0xC0000, 0x40000, 1);
- scan_tree("/sys/class/pci_bus", "legacy_mem", 0, 1024*1024, 0);
-
- scan_rom("/sys/devices", "rom");
-
- scan_tree("/proc/bus/pci", "??.?", 0, 0xA0000, 1);
- scan_tree("/proc/bus/pci", "??.?", 0xA0000, 0x20000, 0);
- scan_tree("/proc/bus/pci", "??.?", 0xC0000, 0x40000, 1);
- scan_tree("/proc/bus/pci", "??.?", 0, 1024*1024, 0);
-
- return rc;
-}
diff --git a/Documentation/kselftest.txt b/Documentation/kselftest.txt
index 979eacae243d..54bee77fa728 100644
--- a/Documentation/kselftest.txt
+++ b/Documentation/kselftest.txt
@@ -1,8 +1,9 @@
Linux Kernel Selftests
The kernel contains a set of "self tests" under the tools/testing/selftests/
-directory. These are intended to be small unit tests to exercise individual
-code paths in the kernel.
+directory. These are intended to be small tests to exercise individual code
+paths in the kernel. Tests are intended to be run after building, installing
+and booting a kernel.
On some systems, hot-plug tests could hang forever waiting for cpu and
memory to be ready to be offlined. A special hot-plug target is created
diff --git a/Documentation/laptops/.gitignore b/Documentation/laptops/.gitignore
deleted file mode 100644
index 9fc984e64386..000000000000
--- a/Documentation/laptops/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-dslm
diff --git a/Documentation/laptops/00-INDEX b/Documentation/laptops/00-INDEX
index 7c0ac2a26b9e..86169dc766f7 100644
--- a/Documentation/laptops/00-INDEX
+++ b/Documentation/laptops/00-INDEX
@@ -1,13 +1,9 @@
00-INDEX
- This file
-Makefile
- - Makefile for building dslm example program.
asus-laptop.txt
- information on the Asus Laptop Extras driver.
disk-shock-protection.txt
- information on hard disk shock protection.
-dslm.c
- - Simple Disk Sleep Monitor program
laptop-mode.txt
- how to conserve battery power using laptop-mode.
sony-laptop.txt
diff --git a/Documentation/laptops/Makefile b/Documentation/laptops/Makefile
deleted file mode 100644
index 0abe44f68965..000000000000
--- a/Documentation/laptops/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# List of programs to build
-hostprogs-y := dslm
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
diff --git a/Documentation/laptops/dslm.c b/Documentation/laptops/dslm.c
deleted file mode 100644
index d5dd2d4b04d8..000000000000
--- a/Documentation/laptops/dslm.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * dslm.c
- * Simple Disk Sleep Monitor
- * by Bartek Kania
- * Licensed under the GPL
- */
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <time.h>
-#include <string.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <linux/hdreg.h>
-
-#ifdef DEBUG
-#define D(x) x
-#else
-#define D(x)
-#endif
-
-int endit = 0;
-
-/* Check if the disk is in powersave-mode
- * Most of the code is stolen from hdparm.
- * 1 = active, 0 = standby/sleep, -1 = unknown */
-static int check_powermode(int fd)
-{
- unsigned char args[4] = {WIN_CHECKPOWERMODE1,0,0,0};
- int state;
-
- if (ioctl(fd, HDIO_DRIVE_CMD, &args)
- && (args[0] = WIN_CHECKPOWERMODE2) /* try again with 0x98 */
- && ioctl(fd, HDIO_DRIVE_CMD, &args)) {
- if (errno != EIO || args[0] != 0 || args[1] != 0) {
- state = -1; /* "unknown"; */
- } else
- state = 0; /* "sleeping"; */
- } else {
- state = (args[2] == 255) ? 1 : 0;
- }
- D(printf(" drive state is: %d\n", state));
-
- return state;
-}
-
-static char *state_name(int i)
-{
- if (i == -1) return "unknown";
- if (i == 0) return "sleeping";
- if (i == 1) return "active";
-
- return "internal error";
-}
-
-static char *myctime(time_t time)
-{
- char *ts = ctime(&time);
- ts[strlen(ts) - 1] = 0;
-
- return ts;
-}
-
-static void measure(int fd)
-{
- time_t start_time;
- int last_state;
- time_t last_time;
- int curr_state;
- time_t curr_time = 0;
- time_t time_diff;
- time_t active_time = 0;
- time_t sleep_time = 0;
- time_t unknown_time = 0;
- time_t total_time = 0;
- int changes = 0;
- float tmp;
-
- printf("Starting measurements\n");
-
- last_state = check_powermode(fd);
- start_time = last_time = time(0);
- printf(" System is in state %s\n\n", state_name(last_state));
-
- while(!endit) {
- sleep(1);
- curr_state = check_powermode(fd);
-
- if (curr_state != last_state || endit) {
- changes++;
- curr_time = time(0);
- time_diff = curr_time - last_time;
-
- if (last_state == 1) active_time += time_diff;
- else if (last_state == 0) sleep_time += time_diff;
- else unknown_time += time_diff;
-
- last_state = curr_state;
- last_time = curr_time;
-
- printf("%s: State-change to %s\n", myctime(curr_time),
- state_name(curr_state));
- }
- }
- changes--; /* Compensate for SIGINT */
-
- total_time = time(0) - start_time;
- printf("\nTotal running time: %lus\n", curr_time - start_time);
- printf(" State changed %d times\n", changes);
-
- tmp = (float)sleep_time / (float)total_time * 100;
- printf(" Time in sleep state: %lus (%.2f%%)\n", sleep_time, tmp);
- tmp = (float)active_time / (float)total_time * 100;
- printf(" Time in active state: %lus (%.2f%%)\n", active_time, tmp);
- tmp = (float)unknown_time / (float)total_time * 100;
- printf(" Time in unknown state: %lus (%.2f%%)\n", unknown_time, tmp);
-}
-
-static void ender(int s)
-{
- endit = 1;
-}
-
-static void usage(void)
-{
- puts("usage: dslm [-w <time>] <disk>");
- exit(0);
-}
-
-int main(int argc, char **argv)
-{
- int fd;
- char *disk = 0;
- int settle_time = 60;
-
- /* Parse the simple command-line */
- if (argc == 2)
- disk = argv[1];
- else if (argc == 4) {
- settle_time = atoi(argv[2]);
- disk = argv[3];
- } else
- usage();
-
- if (!(fd = open(disk, O_RDONLY|O_NONBLOCK))) {
- printf("Can't open %s, because: %s\n", disk, strerror(errno));
- exit(-1);
- }
-
- if (settle_time) {
- printf("Waiting %d seconds for the system to settle down to "
- "'normal'\n", settle_time);
- sleep(settle_time);
- } else
- puts("Not waiting for system to settle down");
-
- signal(SIGINT, ender);
-
- measure(fd);
-
- close(fd);
-
- return 0;
-}
diff --git a/Documentation/laptops/laptop-mode.txt b/Documentation/laptops/laptop-mode.txt
index 4ebbfc3f1c6e..19276f5d195c 100644
--- a/Documentation/laptops/laptop-mode.txt
+++ b/Documentation/laptops/laptop-mode.txt
@@ -779,4 +779,4 @@ Monitoring tool
---------------
Bartek Kania submitted this, it can be used to measure how much time your disk
-spends spun up/down. See Documentation/laptops/dslm.c
+spends spun up/down. See tools/laptop/dslm/dslm.c
diff --git a/Documentation/mic/Makefile b/Documentation/mic/Makefile
deleted file mode 100644
index a191d453badf..000000000000
--- a/Documentation/mic/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-subdir-y := mpssd
diff --git a/Documentation/mic/mpssd/.gitignore b/Documentation/mic/mpssd/.gitignore
deleted file mode 100644
index 8b7c72f07c92..000000000000
--- a/Documentation/mic/mpssd/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-mpssd
diff --git a/Documentation/mic/mpssd/Makefile b/Documentation/mic/mpssd/Makefile
deleted file mode 100644
index 06871b0c08a6..000000000000
--- a/Documentation/mic/mpssd/Makefile
+++ /dev/null
@@ -1,21 +0,0 @@
-ifndef CROSS_COMPILE
-# List of programs to build
-hostprogs-$(CONFIG_X86_64) := mpssd
-
-mpssd-objs := mpssd.o sysfs.o
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
-
-HOSTCFLAGS += -I$(objtree)/usr/include -I$(srctree)/tools/include
-
-ifdef DEBUG
-HOSTCFLAGS += -DDEBUG=$(DEBUG)
-endif
-
-HOSTLOADLIBES_mpssd := -lpthread
-
-install:
- install mpssd /usr/sbin/mpssd
- install micctrl /usr/sbin/micctrl
-endif
diff --git a/Documentation/mic/mpssd/micctrl b/Documentation/mic/mpssd/micctrl
deleted file mode 100755
index 8f2629b41c5f..000000000000
--- a/Documentation/mic/mpssd/micctrl
+++ /dev/null
@@ -1,173 +0,0 @@
-#!/bin/bash
-# Intel MIC Platform Software Stack (MPSS)
-#
-# Copyright(c) 2013 Intel Corporation.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License, version 2, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# The full GNU General Public License is included in this distribution in
-# the file called "COPYING".
-#
-# Intel MIC User Space Tools.
-#
-# micctrl - Controls MIC boot/start/stop.
-#
-# chkconfig: 2345 95 05
-# description: start MPSS stack processing.
-#
-### BEGIN INIT INFO
-# Provides: micctrl
-### END INIT INFO
-
-# Source function library.
-. /etc/init.d/functions
-
-sysfs="/sys/class/mic"
-
-_status()
-{
- f=$sysfs/$1
- echo -e $1 state: "`cat $f/state`" shutdown_status: "`cat $f/shutdown_status`"
-}
-
-status()
-{
- if [ "`echo $1 | head -c3`" == "mic" ]; then
- _status $1
- return $?
- fi
- for f in $sysfs/*
- do
- _status `basename $f`
- RETVAL=$?
- [ $RETVAL -ne 0 ] && return $RETVAL
- done
- return 0
-}
-
-_reset()
-{
- f=$sysfs/$1
- echo reset > $f/state
-}
-
-reset()
-{
- if [ "`echo $1 | head -c3`" == "mic" ]; then
- _reset $1
- return $?
- fi
- for f in $sysfs/*
- do
- _reset `basename $f`
- RETVAL=$?
- [ $RETVAL -ne 0 ] && return $RETVAL
- done
- return 0
-}
-
-_boot()
-{
- f=$sysfs/$1
- echo "linux" > $f/bootmode
- echo "mic/uos.img" > $f/firmware
- echo "mic/$1.image" > $f/ramdisk
- echo "boot" > $f/state
-}
-
-boot()
-{
- if [ "`echo $1 | head -c3`" == "mic" ]; then
- _boot $1
- return $?
- fi
- for f in $sysfs/*
- do
- _boot `basename $f`
- RETVAL=$?
- [ $RETVAL -ne 0 ] && return $RETVAL
- done
- return 0
-}
-
-_shutdown()
-{
- f=$sysfs/$1
- echo shutdown > $f/state
-}
-
-shutdown()
-{
- if [ "`echo $1 | head -c3`" == "mic" ]; then
- _shutdown $1
- return $?
- fi
- for f in $sysfs/*
- do
- _shutdown `basename $f`
- RETVAL=$?
- [ $RETVAL -ne 0 ] && return $RETVAL
- done
- return 0
-}
-
-_wait()
-{
- f=$sysfs/$1
- while [ "`cat $f/state`" != "offline" -a "`cat $f/state`" != "online" ]
- do
- sleep 1
- echo -e "Waiting for $1 to go offline"
- done
-}
-
-wait()
-{
- if [ "`echo $1 | head -c3`" == "mic" ]; then
- _wait $1
- return $?
- fi
- # Wait for the cards to go offline
- for f in $sysfs/*
- do
- _wait `basename $f`
- RETVAL=$?
- [ $RETVAL -ne 0 ] && return $RETVAL
- done
- return 0
-}
-
-if [ ! -d "$sysfs" ]; then
- echo -e $"Module unloaded "
- exit 3
-fi
-
-case $1 in
- -s)
- status $2
- ;;
- -r)
- reset $2
- ;;
- -b)
- boot $2
- ;;
- -S)
- shutdown $2
- ;;
- -w)
- wait $2
- ;;
- *)
- echo $"Usage: $0 {-s (status) |-r (reset) |-b (boot) |-S (shutdown) |-w (wait)}"
- exit 2
-esac
-
-exit $?
diff --git a/Documentation/mic/mpssd/mpss b/Documentation/mic/mpssd/mpss
deleted file mode 100755
index 5fcf9fa4b082..000000000000
--- a/Documentation/mic/mpssd/mpss
+++ /dev/null
@@ -1,200 +0,0 @@
-#!/bin/bash
-# Intel MIC Platform Software Stack (MPSS)
-#
-# Copyright(c) 2013 Intel Corporation.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License, version 2, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# The full GNU General Public License is included in this distribution in
-# the file called "COPYING".
-#
-# Intel MIC User Space Tools.
-#
-# mpss Start mpssd.
-#
-# chkconfig: 2345 95 05
-# description: start MPSS stack processing.
-#
-### BEGIN INIT INFO
-# Provides: mpss
-# Required-Start:
-# Required-Stop:
-# Short-Description: MPSS stack control
-# Description: MPSS stack control
-### END INIT INFO
-
-# Source function library.
-. /etc/init.d/functions
-
-exec=/usr/sbin/mpssd
-sysfs="/sys/class/mic"
-mic_modules="mic_host mic_x100_dma scif vop"
-
-start()
-{
- [ -x $exec ] || exit 5
-
- if [ "`ps -e | awk '{print $4}' | grep mpssd | head -1`" = "mpssd" ]; then
- echo -e $"MPSSD already running! "
- success
- echo
- return 0
- fi
-
- echo -e $"Starting MPSS Stack"
- echo -e $"Loading MIC drivers:" $mic_modules
-
- modprobe -a $mic_modules
- RETVAL=$?
- if [ $RETVAL -ne 0 ]; then
- failure
- echo
- return $RETVAL
- fi
-
- # Start the daemon
- echo -n $"Starting MPSSD "
- $exec
- RETVAL=$?
- if [ $RETVAL -ne 0 ]; then
- failure
- echo
- return $RETVAL
- fi
- success
- echo
-
- sleep 5
-
- # Boot the cards
- micctrl -b
-
- # Wait till ping works
- for f in $sysfs/*
- do
- count=100
- ipaddr=`cat $f/cmdline`
- ipaddr=${ipaddr#*address,}
- ipaddr=`echo $ipaddr | cut -d, -f1 | cut -d\; -f1`
- while [ $count -ge 0 ]
- do
- echo -e "Pinging "`basename $f`" "
- ping -c 1 $ipaddr &> /dev/null
- RETVAL=$?
- if [ $RETVAL -eq 0 ]; then
- success
- break
- fi
- sleep 1
- count=`expr $count - 1`
- done
- [ $RETVAL -ne 0 ] && failure || success
- echo
- done
- return $RETVAL
-}
-
-stop()
-{
- echo -e $"Shutting down MPSS Stack: "
-
- # Bail out if module is unloaded
- if [ ! -d "$sysfs" ]; then
- echo -n $"Module unloaded "
- success
- echo
- return 0
- fi
-
- # Shut down the cards.
- micctrl -S
-
- # Wait for the cards to go offline
- for f in $sysfs/*
- do
- while [ "`cat $f/state`" != "ready" ]
- do
- sleep 1
- echo -e "Waiting for "`basename $f`" to become ready"
- done
- done
-
- # Display the status of the cards
- micctrl -s
-
- # Kill MPSSD now
- echo -n $"Killing MPSSD"
- killall -9 mpssd 2>/dev/null
- RETVAL=$?
- [ $RETVAL -ne 0 ] && failure || success
- echo
- return $RETVAL
-}
-
-restart()
-{
- stop
- sleep 5
- start
-}
-
-status()
-{
- micctrl -s
- if [ "`ps -e | awk '{print $4}' | grep mpssd | head -n 1`" = "mpssd" ]; then
- echo "mpssd is running"
- else
- echo "mpssd is stopped"
- fi
- return 0
-}
-
-unload()
-{
- if [ ! -d "$sysfs" ]; then
- echo -n $"No MIC_HOST Module: "
- success
- echo
- return
- fi
-
- stop
-
- sleep 5
- echo -n $"Removing MIC drivers:" $mic_modules
- modprobe -r $mic_modules
- RETVAL=$?
- [ $RETVAL -ne 0 ] && failure || success
- echo
- return $RETVAL
-}
-
-case $1 in
- start)
- start
- ;;
- stop)
- stop
- ;;
- restart)
- restart
- ;;
- status)
- status
- ;;
- unload)
- unload
- ;;
- *)
- echo $"Usage: $0 {start|stop|restart|status|unload}"
- exit 2
-esac
-
-exit $?
diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c
deleted file mode 100644
index 49db1def1721..000000000000
--- a/Documentation/mic/mpssd/mpssd.c
+++ /dev/null
@@ -1,1826 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC User Space Tools.
- */
-
-#define _GNU_SOURCE
-
-#include <stdlib.h>
-#include <fcntl.h>
-#include <getopt.h>
-#include <assert.h>
-#include <unistd.h>
-#include <stdbool.h>
-#include <signal.h>
-#include <poll.h>
-#include <features.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <sys/socket.h>
-#include <linux/virtio_ring.h>
-#include <linux/virtio_net.h>
-#include <linux/virtio_console.h>
-#include <linux/virtio_blk.h>
-#include <linux/version.h>
-#include "mpssd.h"
-#include <linux/mic_ioctl.h>
-#include <linux/mic_common.h>
-#include <tools/endian.h>
-
-static void *init_mic(void *arg);
-
-static FILE *logfp;
-static struct mic_info mic_list;
-
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-
-#define min_t(type, x, y) ({ \
- type __min1 = (x); \
- type __min2 = (y); \
- __min1 < __min2 ? __min1 : __min2; })
-
-/* align addr on a size boundary - adjust address up/down if needed */
-#define _ALIGN_DOWN(addr, size) ((addr)&(~((size)-1)))
-#define _ALIGN_UP(addr, size) _ALIGN_DOWN(addr + size - 1, size)
-
-/* align addr on a size boundary - adjust address up if needed */
-#define _ALIGN(addr, size) _ALIGN_UP(addr, size)
-
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE)
-
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
-
-#define GSO_ENABLED 1
-#define MAX_GSO_SIZE (64 * 1024)
-#define ETH_H_LEN 14
-#define MAX_NET_PKT_SIZE (_ALIGN_UP(MAX_GSO_SIZE + ETH_H_LEN, 64))
-#define MIC_DEVICE_PAGE_END 0x1000
-
-#ifndef VIRTIO_NET_HDR_F_DATA_VALID
-#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */
-#endif
-
-static struct {
- struct mic_device_desc dd;
- struct mic_vqconfig vqconfig[2];
- __u32 host_features, guest_acknowledgements;
- struct virtio_console_config cons_config;
-} virtcons_dev_page = {
- .dd = {
- .type = VIRTIO_ID_CONSOLE,
- .num_vq = ARRAY_SIZE(virtcons_dev_page.vqconfig),
- .feature_len = sizeof(virtcons_dev_page.host_features),
- .config_len = sizeof(virtcons_dev_page.cons_config),
- },
- .vqconfig[0] = {
- .num = htole16(MIC_VRING_ENTRIES),
- },
- .vqconfig[1] = {
- .num = htole16(MIC_VRING_ENTRIES),
- },
-};
-
-static struct {
- struct mic_device_desc dd;
- struct mic_vqconfig vqconfig[2];
- __u32 host_features, guest_acknowledgements;
- struct virtio_net_config net_config;
-} virtnet_dev_page = {
- .dd = {
- .type = VIRTIO_ID_NET,
- .num_vq = ARRAY_SIZE(virtnet_dev_page.vqconfig),
- .feature_len = sizeof(virtnet_dev_page.host_features),
- .config_len = sizeof(virtnet_dev_page.net_config),
- },
- .vqconfig[0] = {
- .num = htole16(MIC_VRING_ENTRIES),
- },
- .vqconfig[1] = {
- .num = htole16(MIC_VRING_ENTRIES),
- },
-#if GSO_ENABLED
- .host_features = htole32(
- 1 << VIRTIO_NET_F_CSUM |
- 1 << VIRTIO_NET_F_GSO |
- 1 << VIRTIO_NET_F_GUEST_TSO4 |
- 1 << VIRTIO_NET_F_GUEST_TSO6 |
- 1 << VIRTIO_NET_F_GUEST_ECN),
-#else
- .host_features = 0,
-#endif
-};
-
-static const char *mic_config_dir = "/etc/mpss";
-static const char *virtblk_backend = "VIRTBLK_BACKEND";
-static struct {
- struct mic_device_desc dd;
- struct mic_vqconfig vqconfig[1];
- __u32 host_features, guest_acknowledgements;
- struct virtio_blk_config blk_config;
-} virtblk_dev_page = {
- .dd = {
- .type = VIRTIO_ID_BLOCK,
- .num_vq = ARRAY_SIZE(virtblk_dev_page.vqconfig),
- .feature_len = sizeof(virtblk_dev_page.host_features),
- .config_len = sizeof(virtblk_dev_page.blk_config),
- },
- .vqconfig[0] = {
- .num = htole16(MIC_VRING_ENTRIES),
- },
- .host_features =
- htole32(1<<VIRTIO_BLK_F_SEG_MAX),
- .blk_config = {
- .seg_max = htole32(MIC_VRING_ENTRIES - 2),
- .capacity = htole64(0),
- }
-};
-
-static char *myname;
-
-static int
-tap_configure(struct mic_info *mic, char *dev)
-{
- pid_t pid;
- char *ifargv[7];
- char ipaddr[IFNAMSIZ];
- int ret = 0;
-
- pid = fork();
- if (pid == 0) {
- ifargv[0] = "ip";
- ifargv[1] = "link";
- ifargv[2] = "set";
- ifargv[3] = dev;
- ifargv[4] = "up";
- ifargv[5] = NULL;
- mpsslog("Configuring %s\n", dev);
- ret = execvp("ip", ifargv);
- if (ret < 0) {
- mpsslog("%s execvp failed errno %s\n",
- mic->name, strerror(errno));
- return ret;
- }
- }
- if (pid < 0) {
- mpsslog("%s fork failed errno %s\n",
- mic->name, strerror(errno));
- return ret;
- }
-
- ret = waitpid(pid, NULL, 0);
- if (ret < 0) {
- mpsslog("%s waitpid failed errno %s\n",
- mic->name, strerror(errno));
- return ret;
- }
-
- snprintf(ipaddr, IFNAMSIZ, "172.31.%d.254/24", mic->id + 1);
-
- pid = fork();
- if (pid == 0) {
- ifargv[0] = "ip";
- ifargv[1] = "addr";
- ifargv[2] = "add";
- ifargv[3] = ipaddr;
- ifargv[4] = "dev";
- ifargv[5] = dev;
- ifargv[6] = NULL;
- mpsslog("Configuring %s ipaddr %s\n", dev, ipaddr);
- ret = execvp("ip", ifargv);
- if (ret < 0) {
- mpsslog("%s execvp failed errno %s\n",
- mic->name, strerror(errno));
- return ret;
- }
- }
- if (pid < 0) {
- mpsslog("%s fork failed errno %s\n",
- mic->name, strerror(errno));
- return ret;
- }
-
- ret = waitpid(pid, NULL, 0);
- if (ret < 0) {
- mpsslog("%s waitpid failed errno %s\n",
- mic->name, strerror(errno));
- return ret;
- }
- mpsslog("MIC name %s %s %d DONE!\n",
- mic->name, __func__, __LINE__);
- return 0;
-}
-
-static int tun_alloc(struct mic_info *mic, char *dev)
-{
- struct ifreq ifr;
- int fd, err;
-#if GSO_ENABLED
- unsigned offload;
-#endif
- fd = open("/dev/net/tun", O_RDWR);
- if (fd < 0) {
- mpsslog("Could not open /dev/net/tun %s\n", strerror(errno));
- goto done;
- }
-
- memset(&ifr, 0, sizeof(ifr));
-
- ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_VNET_HDR;
- if (*dev)
- strncpy(ifr.ifr_name, dev, IFNAMSIZ);
-
- err = ioctl(fd, TUNSETIFF, (void *)&ifr);
- if (err < 0) {
- mpsslog("%s %s %d TUNSETIFF failed %s\n",
- mic->name, __func__, __LINE__, strerror(errno));
- close(fd);
- return err;
- }
-#if GSO_ENABLED
- offload = TUN_F_CSUM | TUN_F_TSO4 | TUN_F_TSO6 | TUN_F_TSO_ECN;
-
- err = ioctl(fd, TUNSETOFFLOAD, offload);
- if (err < 0) {
- mpsslog("%s %s %d TUNSETOFFLOAD failed %s\n",
- mic->name, __func__, __LINE__, strerror(errno));
- close(fd);
- return err;
- }
-#endif
- strcpy(dev, ifr.ifr_name);
- mpsslog("Created TAP %s\n", dev);
-done:
- return fd;
-}
-
-#define NET_FD_VIRTIO_NET 0
-#define NET_FD_TUN 1
-#define MAX_NET_FD 2
-
-static void set_dp(struct mic_info *mic, int type, void *dp)
-{
- switch (type) {
- case VIRTIO_ID_CONSOLE:
- mic->mic_console.console_dp = dp;
- return;
- case VIRTIO_ID_NET:
- mic->mic_net.net_dp = dp;
- return;
- case VIRTIO_ID_BLOCK:
- mic->mic_virtblk.block_dp = dp;
- return;
- }
- mpsslog("%s %s %d not found\n", mic->name, __func__, type);
- assert(0);
-}
-
-static void *get_dp(struct mic_info *mic, int type)
-{
- switch (type) {
- case VIRTIO_ID_CONSOLE:
- return mic->mic_console.console_dp;
- case VIRTIO_ID_NET:
- return mic->mic_net.net_dp;
- case VIRTIO_ID_BLOCK:
- return mic->mic_virtblk.block_dp;
- }
- mpsslog("%s %s %d not found\n", mic->name, __func__, type);
- assert(0);
- return NULL;
-}
-
-static struct mic_device_desc *get_device_desc(struct mic_info *mic, int type)
-{
- struct mic_device_desc *d;
- int i;
- void *dp = get_dp(mic, type);
-
- for (i = sizeof(struct mic_bootparam); i < PAGE_SIZE;
- i += mic_total_desc_size(d)) {
- d = dp + i;
-
- /* End of list */
- if (d->type == 0)
- break;
-
- if (d->type == -1)
- continue;
-
- mpsslog("%s %s d-> type %d d %p\n",
- mic->name, __func__, d->type, d);
-
- if (d->type == (__u8)type)
- return d;
- }
- mpsslog("%s %s %d not found\n", mic->name, __func__, type);
- return NULL;
-}
-
-/* See comments in vhost.c for explanation of next_desc() */
-static unsigned next_desc(struct vring_desc *desc)
-{
- unsigned int next;
-
- if (!(le16toh(desc->flags) & VRING_DESC_F_NEXT))
- return -1U;
- next = le16toh(desc->next);
- return next;
-}
-
-/* Sum up all the IOVEC length */
-static ssize_t
-sum_iovec_len(struct mic_copy_desc *copy)
-{
- ssize_t sum = 0;
- unsigned int i;
-
- for (i = 0; i < copy->iovcnt; i++)
- sum += copy->iov[i].iov_len;
- return sum;
-}
-
-static inline void verify_out_len(struct mic_info *mic,
- struct mic_copy_desc *copy)
-{
- if (copy->out_len != sum_iovec_len(copy)) {
- mpsslog("%s %s %d BUG copy->out_len 0x%x len 0x%zx\n",
- mic->name, __func__, __LINE__,
- copy->out_len, sum_iovec_len(copy));
- assert(copy->out_len == sum_iovec_len(copy));
- }
-}
-
-/* Display an iovec */
-static void
-disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy,
- const char *s, int line)
-{
- unsigned int i;
-
- for (i = 0; i < copy->iovcnt; i++)
- mpsslog("%s %s %d copy->iov[%d] addr %p len 0x%zx\n",
- mic->name, s, line, i,
- copy->iov[i].iov_base, copy->iov[i].iov_len);
-}
-
-static inline __u16 read_avail_idx(struct mic_vring *vr)
-{
- return ACCESS_ONCE(vr->info->avail_idx);
-}
-
-static inline void txrx_prepare(int type, bool tx, struct mic_vring *vr,
- struct mic_copy_desc *copy, ssize_t len)
-{
- copy->vr_idx = tx ? 0 : 1;
- copy->update_used = true;
- if (type == VIRTIO_ID_NET)
- copy->iov[1].iov_len = len - sizeof(struct virtio_net_hdr);
- else
- copy->iov[0].iov_len = len;
-}
-
-/* Central API which triggers the copies */
-static int
-mic_virtio_copy(struct mic_info *mic, int fd,
- struct mic_vring *vr, struct mic_copy_desc *copy)
-{
- int ret;
-
- ret = ioctl(fd, MIC_VIRTIO_COPY_DESC, copy);
- if (ret) {
- mpsslog("%s %s %d errno %s ret %d\n",
- mic->name, __func__, __LINE__,
- strerror(errno), ret);
- }
- return ret;
-}
-
-static inline unsigned _vring_size(unsigned int num, unsigned long align)
-{
- return ((sizeof(struct vring_desc) * num + sizeof(__u16) * (3 + num)
- + align - 1) & ~(align - 1))
- + sizeof(__u16) * 3 + sizeof(struct vring_used_elem) * num;
-}
-
-/*
- * This initialization routine requires at least one
- * vring i.e. vr0. vr1 is optional.
- */
-static void *
-init_vr(struct mic_info *mic, int fd, int type,
- struct mic_vring *vr0, struct mic_vring *vr1, int num_vq)
-{
- int vr_size;
- char *va;
-
- vr_size = PAGE_ALIGN(_vring_size(MIC_VRING_ENTRIES,
- MIC_VIRTIO_RING_ALIGN) +
- sizeof(struct _mic_vring_info));
- va = mmap(NULL, MIC_DEVICE_PAGE_END + vr_size * num_vq,
- PROT_READ, MAP_SHARED, fd, 0);
- if (MAP_FAILED == va) {
- mpsslog("%s %s %d mmap failed errno %s\n",
- mic->name, __func__, __LINE__,
- strerror(errno));
- goto done;
- }
- set_dp(mic, type, va);
- vr0->va = (struct mic_vring *)&va[MIC_DEVICE_PAGE_END];
- vr0->info = vr0->va +
- _vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN);
- vring_init(&vr0->vr,
- MIC_VRING_ENTRIES, vr0->va, MIC_VIRTIO_RING_ALIGN);
- mpsslog("%s %s vr0 %p vr0->info %p vr_size 0x%x vring 0x%x ",
- __func__, mic->name, vr0->va, vr0->info, vr_size,
- _vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
- mpsslog("magic 0x%x expected 0x%x\n",
- le32toh(vr0->info->magic), MIC_MAGIC + type);
- assert(le32toh(vr0->info->magic) == MIC_MAGIC + type);
- if (vr1) {
- vr1->va = (struct mic_vring *)
- &va[MIC_DEVICE_PAGE_END + vr_size];
- vr1->info = vr1->va + _vring_size(MIC_VRING_ENTRIES,
- MIC_VIRTIO_RING_ALIGN);
- vring_init(&vr1->vr,
- MIC_VRING_ENTRIES, vr1->va, MIC_VIRTIO_RING_ALIGN);
- mpsslog("%s %s vr1 %p vr1->info %p vr_size 0x%x vring 0x%x ",
- __func__, mic->name, vr1->va, vr1->info, vr_size,
- _vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
- mpsslog("magic 0x%x expected 0x%x\n",
- le32toh(vr1->info->magic), MIC_MAGIC + type + 1);
- assert(le32toh(vr1->info->magic) == MIC_MAGIC + type + 1);
- }
-done:
- return va;
-}
-
-static int
-wait_for_card_driver(struct mic_info *mic, int fd, int type)
-{
- struct pollfd pollfd;
- int err;
- struct mic_device_desc *desc = get_device_desc(mic, type);
- __u8 prev_status;
-
- if (!desc)
- return -ENODEV;
- prev_status = desc->status;
- pollfd.fd = fd;
- mpsslog("%s %s Waiting .... desc-> type %d status 0x%x\n",
- mic->name, __func__, type, desc->status);
-
- while (1) {
- pollfd.events = POLLIN;
- pollfd.revents = 0;
- err = poll(&pollfd, 1, -1);
- if (err < 0) {
- mpsslog("%s %s poll failed %s\n",
- mic->name, __func__, strerror(errno));
- continue;
- }
-
- if (pollfd.revents) {
- if (desc->status != prev_status) {
- mpsslog("%s %s Waiting... desc-> type %d "
- "status 0x%x\n",
- mic->name, __func__, type,
- desc->status);
- prev_status = desc->status;
- }
- if (desc->status & VIRTIO_CONFIG_S_DRIVER_OK) {
- mpsslog("%s %s poll.revents %d\n",
- mic->name, __func__, pollfd.revents);
- mpsslog("%s %s desc-> type %d status 0x%x\n",
- mic->name, __func__, type,
- desc->status);
- break;
- }
- }
- }
- return 0;
-}
-
-/* Spin till we have some descriptors */
-static void
-spin_for_descriptors(struct mic_info *mic, struct mic_vring *vr)
-{
- __u16 avail_idx = read_avail_idx(vr);
-
- while (avail_idx == le16toh(ACCESS_ONCE(vr->vr.avail->idx))) {
-#ifdef DEBUG
- mpsslog("%s %s waiting for desc avail %d info_avail %d\n",
- mic->name, __func__,
- le16toh(vr->vr.avail->idx), vr->info->avail_idx);
-#endif
- sched_yield();
- }
-}
-
-static void *
-virtio_net(void *arg)
-{
- static __u8 vnet_hdr[2][sizeof(struct virtio_net_hdr)];
- static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __attribute__ ((aligned(64)));
- struct iovec vnet_iov[2][2] = {
- { { .iov_base = vnet_hdr[0], .iov_len = sizeof(vnet_hdr[0]) },
- { .iov_base = vnet_buf[0], .iov_len = sizeof(vnet_buf[0]) } },
- { { .iov_base = vnet_hdr[1], .iov_len = sizeof(vnet_hdr[1]) },
- { .iov_base = vnet_buf[1], .iov_len = sizeof(vnet_buf[1]) } },
- };
- struct iovec *iov0 = vnet_iov[0], *iov1 = vnet_iov[1];
- struct mic_info *mic = (struct mic_info *)arg;
- char if_name[IFNAMSIZ];
- struct pollfd net_poll[MAX_NET_FD];
- struct mic_vring tx_vr, rx_vr;
- struct mic_copy_desc copy;
- struct mic_device_desc *desc;
- int err;
-
- snprintf(if_name, IFNAMSIZ, "mic%d", mic->id);
- mic->mic_net.tap_fd = tun_alloc(mic, if_name);
- if (mic->mic_net.tap_fd < 0)
- goto done;
-
- if (tap_configure(mic, if_name))
- goto done;
- mpsslog("MIC name %s id %d\n", mic->name, mic->id);
-
- net_poll[NET_FD_VIRTIO_NET].fd = mic->mic_net.virtio_net_fd;
- net_poll[NET_FD_VIRTIO_NET].events = POLLIN;
- net_poll[NET_FD_TUN].fd = mic->mic_net.tap_fd;
- net_poll[NET_FD_TUN].events = POLLIN;
-
- if (MAP_FAILED == init_vr(mic, mic->mic_net.virtio_net_fd,
- VIRTIO_ID_NET, &tx_vr, &rx_vr,
- virtnet_dev_page.dd.num_vq)) {
- mpsslog("%s init_vr failed %s\n",
- mic->name, strerror(errno));
- goto done;
- }
-
- copy.iovcnt = 2;
- desc = get_device_desc(mic, VIRTIO_ID_NET);
-
- while (1) {
- ssize_t len;
-
- net_poll[NET_FD_VIRTIO_NET].revents = 0;
- net_poll[NET_FD_TUN].revents = 0;
-
- /* Start polling for data from tap and virtio net */
- err = poll(net_poll, 2, -1);
- if (err < 0) {
- mpsslog("%s poll failed %s\n",
- __func__, strerror(errno));
- continue;
- }
- if (!(desc->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
- err = wait_for_card_driver(mic,
- mic->mic_net.virtio_net_fd,
- VIRTIO_ID_NET);
- if (err) {
- mpsslog("%s %s %d Exiting...\n",
- mic->name, __func__, __LINE__);
- break;
- }
- }
- /*
- * Check if there is data to be read from TUN and write to
- * virtio net fd if there is.
- */
- if (net_poll[NET_FD_TUN].revents & POLLIN) {
- copy.iov = iov0;
- len = readv(net_poll[NET_FD_TUN].fd,
- copy.iov, copy.iovcnt);
- if (len > 0) {
- struct virtio_net_hdr *hdr
- = (struct virtio_net_hdr *)vnet_hdr[0];
-
- /* Disable checksums on the card since we are on
- a reliable PCIe link */
- hdr->flags |= VIRTIO_NET_HDR_F_DATA_VALID;
-#ifdef DEBUG
- mpsslog("%s %s %d hdr->flags 0x%x ", mic->name,
- __func__, __LINE__, hdr->flags);
- mpsslog("copy.out_len %d hdr->gso_type 0x%x\n",
- copy.out_len, hdr->gso_type);
-#endif
-#ifdef DEBUG
- disp_iovec(mic, copy, __func__, __LINE__);
- mpsslog("%s %s %d read from tap 0x%lx\n",
- mic->name, __func__, __LINE__,
- len);
-#endif
- spin_for_descriptors(mic, &tx_vr);
- txrx_prepare(VIRTIO_ID_NET, 1, &tx_vr, &copy,
- len);
-
- err = mic_virtio_copy(mic,
- mic->mic_net.virtio_net_fd, &tx_vr,
- &copy);
- if (err < 0) {
- mpsslog("%s %s %d mic_virtio_copy %s\n",
- mic->name, __func__, __LINE__,
- strerror(errno));
- }
- if (!err)
- verify_out_len(mic, &copy);
-#ifdef DEBUG
- disp_iovec(mic, copy, __func__, __LINE__);
- mpsslog("%s %s %d wrote to net 0x%lx\n",
- mic->name, __func__, __LINE__,
- sum_iovec_len(&copy));
-#endif
- /* Reinitialize IOV for next run */
- iov0[1].iov_len = MAX_NET_PKT_SIZE;
- } else if (len < 0) {
- disp_iovec(mic, &copy, __func__, __LINE__);
- mpsslog("%s %s %d read failed %s ", mic->name,
- __func__, __LINE__, strerror(errno));
- mpsslog("cnt %d sum %zd\n",
- copy.iovcnt, sum_iovec_len(&copy));
- }
- }
-
- /*
- * Check if there is data to be read from virtio net and
- * write to TUN if there is.
- */
- if (net_poll[NET_FD_VIRTIO_NET].revents & POLLIN) {
- while (rx_vr.info->avail_idx !=
- le16toh(rx_vr.vr.avail->idx)) {
- copy.iov = iov1;
- txrx_prepare(VIRTIO_ID_NET, 0, &rx_vr, &copy,
- MAX_NET_PKT_SIZE
- + sizeof(struct virtio_net_hdr));
-
- err = mic_virtio_copy(mic,
- mic->mic_net.virtio_net_fd, &rx_vr,
- &copy);
- if (!err) {
-#ifdef DEBUG
- struct virtio_net_hdr *hdr
- = (struct virtio_net_hdr *)
- vnet_hdr[1];
-
- mpsslog("%s %s %d hdr->flags 0x%x, ",
- mic->name, __func__, __LINE__,
- hdr->flags);
- mpsslog("out_len %d gso_type 0x%x\n",
- copy.out_len,
- hdr->gso_type);
-#endif
- /* Set the correct output iov_len */
- iov1[1].iov_len = copy.out_len -
- sizeof(struct virtio_net_hdr);
- verify_out_len(mic, &copy);
-#ifdef DEBUG
- disp_iovec(mic, copy, __func__,
- __LINE__);
- mpsslog("%s %s %d ",
- mic->name, __func__, __LINE__);
- mpsslog("read from net 0x%lx\n",
- sum_iovec_len(copy));
-#endif
- len = writev(net_poll[NET_FD_TUN].fd,
- copy.iov, copy.iovcnt);
- if (len != sum_iovec_len(&copy)) {
- mpsslog("Tun write failed %s ",
- strerror(errno));
- mpsslog("len 0x%zx ", len);
- mpsslog("read_len 0x%zx\n",
- sum_iovec_len(&copy));
- } else {
-#ifdef DEBUG
- disp_iovec(mic, &copy, __func__,
- __LINE__);
- mpsslog("%s %s %d ",
- mic->name, __func__,
- __LINE__);
- mpsslog("wrote to tap 0x%lx\n",
- len);
-#endif
- }
- } else {
- mpsslog("%s %s %d mic_virtio_copy %s\n",
- mic->name, __func__, __LINE__,
- strerror(errno));
- break;
- }
- }
- }
- if (net_poll[NET_FD_VIRTIO_NET].revents & POLLERR)
- mpsslog("%s: %s: POLLERR\n", __func__, mic->name);
- }
-done:
- pthread_exit(NULL);
-}
-
-/* virtio_console */
-#define VIRTIO_CONSOLE_FD 0
-#define MONITOR_FD (VIRTIO_CONSOLE_FD + 1)
-#define MAX_CONSOLE_FD (MONITOR_FD + 1) /* must be the last one + 1 */
-#define MAX_BUFFER_SIZE PAGE_SIZE
-
-static void *
-virtio_console(void *arg)
-{
- static __u8 vcons_buf[2][PAGE_SIZE];
- struct iovec vcons_iov[2] = {
- { .iov_base = vcons_buf[0], .iov_len = sizeof(vcons_buf[0]) },
- { .iov_base = vcons_buf[1], .iov_len = sizeof(vcons_buf[1]) },
- };
- struct iovec *iov0 = &vcons_iov[0], *iov1 = &vcons_iov[1];
- struct mic_info *mic = (struct mic_info *)arg;
- int err;
- struct pollfd console_poll[MAX_CONSOLE_FD];
- int pty_fd;
- char *pts_name;
- ssize_t len;
- struct mic_vring tx_vr, rx_vr;
- struct mic_copy_desc copy;
- struct mic_device_desc *desc;
-
- pty_fd = posix_openpt(O_RDWR);
- if (pty_fd < 0) {
- mpsslog("can't open a pseudoterminal master device: %s\n",
- strerror(errno));
- goto _return;
- }
- pts_name = ptsname(pty_fd);
- if (pts_name == NULL) {
- mpsslog("can't get pts name\n");
- goto _close_pty;
- }
- printf("%s console message goes to %s\n", mic->name, pts_name);
- mpsslog("%s console message goes to %s\n", mic->name, pts_name);
- err = grantpt(pty_fd);
- if (err < 0) {
- mpsslog("can't grant access: %s %s\n",
- pts_name, strerror(errno));
- goto _close_pty;
- }
- err = unlockpt(pty_fd);
- if (err < 0) {
- mpsslog("can't unlock a pseudoterminal: %s %s\n",
- pts_name, strerror(errno));
- goto _close_pty;
- }
- console_poll[MONITOR_FD].fd = pty_fd;
- console_poll[MONITOR_FD].events = POLLIN;
-
- console_poll[VIRTIO_CONSOLE_FD].fd = mic->mic_console.virtio_console_fd;
- console_poll[VIRTIO_CONSOLE_FD].events = POLLIN;
-
- if (MAP_FAILED == init_vr(mic, mic->mic_console.virtio_console_fd,
- VIRTIO_ID_CONSOLE, &tx_vr, &rx_vr,
- virtcons_dev_page.dd.num_vq)) {
- mpsslog("%s init_vr failed %s\n",
- mic->name, strerror(errno));
- goto _close_pty;
- }
-
- copy.iovcnt = 1;
- desc = get_device_desc(mic, VIRTIO_ID_CONSOLE);
-
- for (;;) {
- console_poll[MONITOR_FD].revents = 0;
- console_poll[VIRTIO_CONSOLE_FD].revents = 0;
- err = poll(console_poll, MAX_CONSOLE_FD, -1);
- if (err < 0) {
- mpsslog("%s %d: poll failed: %s\n", __func__, __LINE__,
- strerror(errno));
- continue;
- }
- if (!(desc->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
- err = wait_for_card_driver(mic,
- mic->mic_console.virtio_console_fd,
- VIRTIO_ID_CONSOLE);
- if (err) {
- mpsslog("%s %s %d Exiting...\n",
- mic->name, __func__, __LINE__);
- break;
- }
- }
-
- if (console_poll[MONITOR_FD].revents & POLLIN) {
- copy.iov = iov0;
- len = readv(pty_fd, copy.iov, copy.iovcnt);
- if (len > 0) {
-#ifdef DEBUG
- disp_iovec(mic, copy, __func__, __LINE__);
- mpsslog("%s %s %d read from tap 0x%lx\n",
- mic->name, __func__, __LINE__,
- len);
-#endif
- spin_for_descriptors(mic, &tx_vr);
- txrx_prepare(VIRTIO_ID_CONSOLE, 1, &tx_vr,
- &copy, len);
-
- err = mic_virtio_copy(mic,
- mic->mic_console.virtio_console_fd,
- &tx_vr, &copy);
- if (err < 0) {
- mpsslog("%s %s %d mic_virtio_copy %s\n",
- mic->name, __func__, __LINE__,
- strerror(errno));
- }
- if (!err)
- verify_out_len(mic, &copy);
-#ifdef DEBUG
- disp_iovec(mic, copy, __func__, __LINE__);
- mpsslog("%s %s %d wrote to net 0x%lx\n",
- mic->name, __func__, __LINE__,
- sum_iovec_len(copy));
-#endif
- /* Reinitialize IOV for next run */
- iov0->iov_len = PAGE_SIZE;
- } else if (len < 0) {
- disp_iovec(mic, &copy, __func__, __LINE__);
- mpsslog("%s %s %d read failed %s ",
- mic->name, __func__, __LINE__,
- strerror(errno));
- mpsslog("cnt %d sum %zd\n",
- copy.iovcnt, sum_iovec_len(&copy));
- }
- }
-
- if (console_poll[VIRTIO_CONSOLE_FD].revents & POLLIN) {
- while (rx_vr.info->avail_idx !=
- le16toh(rx_vr.vr.avail->idx)) {
- copy.iov = iov1;
- txrx_prepare(VIRTIO_ID_CONSOLE, 0, &rx_vr,
- &copy, PAGE_SIZE);
-
- err = mic_virtio_copy(mic,
- mic->mic_console.virtio_console_fd,
- &rx_vr, &copy);
- if (!err) {
- /* Set the correct output iov_len */
- iov1->iov_len = copy.out_len;
- verify_out_len(mic, &copy);
-#ifdef DEBUG
- disp_iovec(mic, copy, __func__,
- __LINE__);
- mpsslog("%s %s %d ",
- mic->name, __func__, __LINE__);
- mpsslog("read from net 0x%lx\n",
- sum_iovec_len(copy));
-#endif
- len = writev(pty_fd,
- copy.iov, copy.iovcnt);
- if (len != sum_iovec_len(&copy)) {
- mpsslog("Tun write failed %s ",
- strerror(errno));
- mpsslog("len 0x%zx ", len);
- mpsslog("read_len 0x%zx\n",
- sum_iovec_len(&copy));
- } else {
-#ifdef DEBUG
- disp_iovec(mic, copy, __func__,
- __LINE__);
- mpsslog("%s %s %d ",
- mic->name, __func__,
- __LINE__);
- mpsslog("wrote to tap 0x%lx\n",
- len);
-#endif
- }
- } else {
- mpsslog("%s %s %d mic_virtio_copy %s\n",
- mic->name, __func__, __LINE__,
- strerror(errno));
- break;
- }
- }
- }
- if (console_poll[NET_FD_VIRTIO_NET].revents & POLLERR)
- mpsslog("%s: %s: POLLERR\n", __func__, mic->name);
- }
-_close_pty:
- close(pty_fd);
-_return:
- pthread_exit(NULL);
-}
-
-static void
-add_virtio_device(struct mic_info *mic, struct mic_device_desc *dd)
-{
- char path[PATH_MAX];
- int fd, err;
-
- snprintf(path, PATH_MAX, "/dev/vop_virtio%d", mic->id);
- fd = open(path, O_RDWR);
- if (fd < 0) {
- mpsslog("Could not open %s %s\n", path, strerror(errno));
- return;
- }
-
- err = ioctl(fd, MIC_VIRTIO_ADD_DEVICE, dd);
- if (err < 0) {
- mpsslog("Could not add %d %s\n", dd->type, strerror(errno));
- close(fd);
- return;
- }
- switch (dd->type) {
- case VIRTIO_ID_NET:
- mic->mic_net.virtio_net_fd = fd;
- mpsslog("Added VIRTIO_ID_NET for %s\n", mic->name);
- break;
- case VIRTIO_ID_CONSOLE:
- mic->mic_console.virtio_console_fd = fd;
- mpsslog("Added VIRTIO_ID_CONSOLE for %s\n", mic->name);
- break;
- case VIRTIO_ID_BLOCK:
- mic->mic_virtblk.virtio_block_fd = fd;
- mpsslog("Added VIRTIO_ID_BLOCK for %s\n", mic->name);
- break;
- }
-}
-
-static bool
-set_backend_file(struct mic_info *mic)
-{
- FILE *config;
- char buff[PATH_MAX], *line, *evv, *p;
-
- snprintf(buff, PATH_MAX, "%s/mpssd%03d.conf", mic_config_dir, mic->id);
- config = fopen(buff, "r");
- if (config == NULL)
- return false;
- do { /* look for "virtblk_backend=XXXX" */
- line = fgets(buff, PATH_MAX, config);
- if (line == NULL)
- break;
- if (*line == '#')
- continue;
- p = strchr(line, '\n');
- if (p)
- *p = '\0';
- } while (strncmp(line, virtblk_backend, strlen(virtblk_backend)) != 0);
- fclose(config);
- if (line == NULL)
- return false;
- evv = strchr(line, '=');
- if (evv == NULL)
- return false;
- mic->mic_virtblk.backend_file = malloc(strlen(evv) + 1);
- if (mic->mic_virtblk.backend_file == NULL) {
- mpsslog("%s %d can't allocate memory\n", mic->name, mic->id);
- return false;
- }
- strcpy(mic->mic_virtblk.backend_file, evv + 1);
- return true;
-}
-
-#define SECTOR_SIZE 512
-static bool
-set_backend_size(struct mic_info *mic)
-{
- mic->mic_virtblk.backend_size = lseek(mic->mic_virtblk.backend, 0,
- SEEK_END);
- if (mic->mic_virtblk.backend_size < 0) {
- mpsslog("%s: can't seek: %s\n",
- mic->name, mic->mic_virtblk.backend_file);
- return false;
- }
- virtblk_dev_page.blk_config.capacity =
- mic->mic_virtblk.backend_size / SECTOR_SIZE;
- if ((mic->mic_virtblk.backend_size % SECTOR_SIZE) != 0)
- virtblk_dev_page.blk_config.capacity++;
-
- virtblk_dev_page.blk_config.capacity =
- htole64(virtblk_dev_page.blk_config.capacity);
-
- return true;
-}
-
-static bool
-open_backend(struct mic_info *mic)
-{
- if (!set_backend_file(mic))
- goto _error_exit;
- mic->mic_virtblk.backend = open(mic->mic_virtblk.backend_file, O_RDWR);
- if (mic->mic_virtblk.backend < 0) {
- mpsslog("%s: can't open: %s\n", mic->name,
- mic->mic_virtblk.backend_file);
- goto _error_free;
- }
- if (!set_backend_size(mic))
- goto _error_close;
- mic->mic_virtblk.backend_addr = mmap(NULL,
- mic->mic_virtblk.backend_size,
- PROT_READ|PROT_WRITE, MAP_SHARED,
- mic->mic_virtblk.backend, 0L);
- if (mic->mic_virtblk.backend_addr == MAP_FAILED) {
- mpsslog("%s: can't map: %s %s\n",
- mic->name, mic->mic_virtblk.backend_file,
- strerror(errno));
- goto _error_close;
- }
- return true;
-
- _error_close:
- close(mic->mic_virtblk.backend);
- _error_free:
- free(mic->mic_virtblk.backend_file);
- _error_exit:
- return false;
-}
-
-static void
-close_backend(struct mic_info *mic)
-{
- munmap(mic->mic_virtblk.backend_addr, mic->mic_virtblk.backend_size);
- close(mic->mic_virtblk.backend);
- free(mic->mic_virtblk.backend_file);
-}
-
-static bool
-start_virtblk(struct mic_info *mic, struct mic_vring *vring)
-{
- if (((unsigned long)&virtblk_dev_page.blk_config % 8) != 0) {
- mpsslog("%s: blk_config is not 8 byte aligned.\n",
- mic->name);
- return false;
- }
- add_virtio_device(mic, &virtblk_dev_page.dd);
- if (MAP_FAILED == init_vr(mic, mic->mic_virtblk.virtio_block_fd,
- VIRTIO_ID_BLOCK, vring, NULL,
- virtblk_dev_page.dd.num_vq)) {
- mpsslog("%s init_vr failed %s\n",
- mic->name, strerror(errno));
- return false;
- }
- return true;
-}
-
-static void
-stop_virtblk(struct mic_info *mic)
-{
- int vr_size, ret;
-
- vr_size = PAGE_ALIGN(_vring_size(MIC_VRING_ENTRIES,
- MIC_VIRTIO_RING_ALIGN) +
- sizeof(struct _mic_vring_info));
- ret = munmap(mic->mic_virtblk.block_dp,
- MIC_DEVICE_PAGE_END + vr_size * virtblk_dev_page.dd.num_vq);
- if (ret < 0)
- mpsslog("%s munmap errno %d\n", mic->name, errno);
- close(mic->mic_virtblk.virtio_block_fd);
-}
-
-static __u8
-header_error_check(struct vring_desc *desc)
-{
- if (le32toh(desc->len) != sizeof(struct virtio_blk_outhdr)) {
- mpsslog("%s() %d: length is not sizeof(virtio_blk_outhd)\n",
- __func__, __LINE__);
- return -EIO;
- }
- if (!(le16toh(desc->flags) & VRING_DESC_F_NEXT)) {
- mpsslog("%s() %d: alone\n",
- __func__, __LINE__);
- return -EIO;
- }
- if (le16toh(desc->flags) & VRING_DESC_F_WRITE) {
- mpsslog("%s() %d: not read\n",
- __func__, __LINE__);
- return -EIO;
- }
- return 0;
-}
-
-static int
-read_header(int fd, struct virtio_blk_outhdr *hdr, __u32 desc_idx)
-{
- struct iovec iovec;
- struct mic_copy_desc copy;
-
- iovec.iov_len = sizeof(*hdr);
- iovec.iov_base = hdr;
- copy.iov = &iovec;
- copy.iovcnt = 1;
- copy.vr_idx = 0; /* only one vring on virtio_block */
- copy.update_used = false; /* do not update used index */
- return ioctl(fd, MIC_VIRTIO_COPY_DESC, &copy);
-}
-
-static int
-transfer_blocks(int fd, struct iovec *iovec, __u32 iovcnt)
-{
- struct mic_copy_desc copy;
-
- copy.iov = iovec;
- copy.iovcnt = iovcnt;
- copy.vr_idx = 0; /* only one vring on virtio_block */
- copy.update_used = false; /* do not update used index */
- return ioctl(fd, MIC_VIRTIO_COPY_DESC, &copy);
-}
-
-static __u8
-status_error_check(struct vring_desc *desc)
-{
- if (le32toh(desc->len) != sizeof(__u8)) {
- mpsslog("%s() %d: length is not sizeof(status)\n",
- __func__, __LINE__);
- return -EIO;
- }
- return 0;
-}
-
-static int
-write_status(int fd, __u8 *status)
-{
- struct iovec iovec;
- struct mic_copy_desc copy;
-
- iovec.iov_base = status;
- iovec.iov_len = sizeof(*status);
- copy.iov = &iovec;
- copy.iovcnt = 1;
- copy.vr_idx = 0; /* only one vring on virtio_block */
- copy.update_used = true; /* Update used index */
- return ioctl(fd, MIC_VIRTIO_COPY_DESC, &copy);
-}
-
-#ifndef VIRTIO_BLK_T_GET_ID
-#define VIRTIO_BLK_T_GET_ID 8
-#endif
-
-static void *
-virtio_block(void *arg)
-{
- struct mic_info *mic = (struct mic_info *)arg;
- int ret;
- struct pollfd block_poll;
- struct mic_vring vring;
- __u16 avail_idx;
- __u32 desc_idx;
- struct vring_desc *desc;
- struct iovec *iovec, *piov;
- __u8 status;
- __u32 buffer_desc_idx;
- struct virtio_blk_outhdr hdr;
- void *fos;
-
- for (;;) { /* forever */
- if (!open_backend(mic)) { /* No virtblk */
- for (mic->mic_virtblk.signaled = 0;
- !mic->mic_virtblk.signaled;)
- sleep(1);
- continue;
- }
-
- /* backend file is specified. */
- if (!start_virtblk(mic, &vring))
- goto _close_backend;
- iovec = malloc(sizeof(*iovec) *
- le32toh(virtblk_dev_page.blk_config.seg_max));
- if (!iovec) {
- mpsslog("%s: can't alloc iovec: %s\n",
- mic->name, strerror(ENOMEM));
- goto _stop_virtblk;
- }
-
- block_poll.fd = mic->mic_virtblk.virtio_block_fd;
- block_poll.events = POLLIN;
- for (mic->mic_virtblk.signaled = 0;
- !mic->mic_virtblk.signaled;) {
- block_poll.revents = 0;
- /* timeout in 1 sec to see signaled */
- ret = poll(&block_poll, 1, 1000);
- if (ret < 0) {
- mpsslog("%s %d: poll failed: %s\n",
- __func__, __LINE__,
- strerror(errno));
- continue;
- }
-
- if (!(block_poll.revents & POLLIN)) {
-#ifdef DEBUG
- mpsslog("%s %d: block_poll.revents=0x%x\n",
- __func__, __LINE__, block_poll.revents);
-#endif
- continue;
- }
-
- /* POLLIN */
- while (vring.info->avail_idx !=
- le16toh(vring.vr.avail->idx)) {
- /* read header element */
- avail_idx =
- vring.info->avail_idx &
- (vring.vr.num - 1);
- desc_idx = le16toh(
- vring.vr.avail->ring[avail_idx]);
- desc = &vring.vr.desc[desc_idx];
-#ifdef DEBUG
- mpsslog("%s() %d: avail_idx=%d ",
- __func__, __LINE__,
- vring.info->avail_idx);
- mpsslog("vring.vr.num=%d desc=%p\n",
- vring.vr.num, desc);
-#endif
- status = header_error_check(desc);
- ret = read_header(
- mic->mic_virtblk.virtio_block_fd,
- &hdr, desc_idx);
- if (ret < 0) {
- mpsslog("%s() %d %s: ret=%d %s\n",
- __func__, __LINE__,
- mic->name, ret,
- strerror(errno));
- break;
- }
- /* buffer element */
- piov = iovec;
- status = 0;
- fos = mic->mic_virtblk.backend_addr +
- (hdr.sector * SECTOR_SIZE);
- buffer_desc_idx = next_desc(desc);
- desc_idx = buffer_desc_idx;
- for (desc = &vring.vr.desc[buffer_desc_idx];
- desc->flags & VRING_DESC_F_NEXT;
- desc_idx = next_desc(desc),
- desc = &vring.vr.desc[desc_idx]) {
- piov->iov_len = desc->len;
- piov->iov_base = fos;
- piov++;
- fos += desc->len;
- }
- /* Returning NULLs for VIRTIO_BLK_T_GET_ID. */
- if (hdr.type & ~(VIRTIO_BLK_T_OUT |
- VIRTIO_BLK_T_GET_ID)) {
- /*
- VIRTIO_BLK_T_IN - does not do
- anything. Probably for documenting.
- VIRTIO_BLK_T_SCSI_CMD - for
- virtio_scsi.
- VIRTIO_BLK_T_FLUSH - turned off in
- config space.
- VIRTIO_BLK_T_BARRIER - defined but not
- used in anywhere.
- */
- mpsslog("%s() %d: type %x ",
- __func__, __LINE__,
- hdr.type);
- mpsslog("is not supported\n");
- status = -ENOTSUP;
-
- } else {
- ret = transfer_blocks(
- mic->mic_virtblk.virtio_block_fd,
- iovec,
- piov - iovec);
- if (ret < 0 &&
- status != 0)
- status = ret;
- }
- /* write status and update used pointer */
- if (status != 0)
- status = status_error_check(desc);
- ret = write_status(
- mic->mic_virtblk.virtio_block_fd,
- &status);
-#ifdef DEBUG
- mpsslog("%s() %d: write status=%d on desc=%p\n",
- __func__, __LINE__,
- status, desc);
-#endif
- }
- }
- free(iovec);
-_stop_virtblk:
- stop_virtblk(mic);
-_close_backend:
- close_backend(mic);
- } /* forever */
-
- pthread_exit(NULL);
-}
-
-static void
-reset(struct mic_info *mic)
-{
-#define RESET_TIMEOUT 120
- int i = RESET_TIMEOUT;
- setsysfs(mic->name, "state", "reset");
- while (i) {
- char *state;
- state = readsysfs(mic->name, "state");
- if (!state)
- goto retry;
- mpsslog("%s: %s %d state %s\n",
- mic->name, __func__, __LINE__, state);
-
- if (!strcmp(state, "ready")) {
- free(state);
- break;
- }
- free(state);
-retry:
- sleep(1);
- i--;
- }
-}
-
-static int
-get_mic_shutdown_status(struct mic_info *mic, char *shutdown_status)
-{
- if (!strcmp(shutdown_status, "nop"))
- return MIC_NOP;
- if (!strcmp(shutdown_status, "crashed"))
- return MIC_CRASHED;
- if (!strcmp(shutdown_status, "halted"))
- return MIC_HALTED;
- if (!strcmp(shutdown_status, "poweroff"))
- return MIC_POWER_OFF;
- if (!strcmp(shutdown_status, "restart"))
- return MIC_RESTART;
- mpsslog("%s: BUG invalid status %s\n", mic->name, shutdown_status);
- /* Invalid state */
- assert(0);
-};
-
-static int get_mic_state(struct mic_info *mic)
-{
- char *state = NULL;
- enum mic_states mic_state;
-
- while (!state) {
- state = readsysfs(mic->name, "state");
- sleep(1);
- }
- mpsslog("%s: %s %d state %s\n",
- mic->name, __func__, __LINE__, state);
-
- if (!strcmp(state, "ready")) {
- mic_state = MIC_READY;
- } else if (!strcmp(state, "booting")) {
- mic_state = MIC_BOOTING;
- } else if (!strcmp(state, "online")) {
- mic_state = MIC_ONLINE;
- } else if (!strcmp(state, "shutting_down")) {
- mic_state = MIC_SHUTTING_DOWN;
- } else if (!strcmp(state, "reset_failed")) {
- mic_state = MIC_RESET_FAILED;
- } else if (!strcmp(state, "resetting")) {
- mic_state = MIC_RESETTING;
- } else {
- mpsslog("%s: BUG invalid state %s\n", mic->name, state);
- assert(0);
- }
-
- free(state);
- return mic_state;
-};
-
-static void mic_handle_shutdown(struct mic_info *mic)
-{
-#define SHUTDOWN_TIMEOUT 60
- int i = SHUTDOWN_TIMEOUT;
- char *shutdown_status;
- while (i) {
- shutdown_status = readsysfs(mic->name, "shutdown_status");
- if (!shutdown_status) {
- sleep(1);
- continue;
- }
- mpsslog("%s: %s %d shutdown_status %s\n",
- mic->name, __func__, __LINE__, shutdown_status);
- switch (get_mic_shutdown_status(mic, shutdown_status)) {
- case MIC_RESTART:
- mic->restart = 1;
- case MIC_HALTED:
- case MIC_POWER_OFF:
- case MIC_CRASHED:
- free(shutdown_status);
- goto reset;
- default:
- break;
- }
- free(shutdown_status);
- sleep(1);
- i--;
- }
-reset:
- if (!i)
- mpsslog("%s: %s %d timing out waiting for shutdown_status %s\n",
- mic->name, __func__, __LINE__, shutdown_status);
- reset(mic);
-}
-
-static int open_state_fd(struct mic_info *mic)
-{
- char pathname[PATH_MAX];
- int fd;
-
- snprintf(pathname, PATH_MAX - 1, "%s/%s/%s",
- MICSYSFSDIR, mic->name, "state");
-
- fd = open(pathname, O_RDONLY);
- if (fd < 0)
- mpsslog("%s: opening file %s failed %s\n",
- mic->name, pathname, strerror(errno));
- return fd;
-}
-
-static int block_till_state_change(int fd, struct mic_info *mic)
-{
- struct pollfd ufds[1];
- char value[PAGE_SIZE];
- int ret;
-
- ufds[0].fd = fd;
- ufds[0].events = POLLERR | POLLPRI;
- ret = poll(ufds, 1, -1);
- if (ret < 0) {
- mpsslog("%s: %s %d poll failed %s\n",
- mic->name, __func__, __LINE__, strerror(errno));
- return ret;
- }
-
- ret = lseek(fd, 0, SEEK_SET);
- if (ret < 0) {
- mpsslog("%s: %s %d Failed to seek to 0: %s\n",
- mic->name, __func__, __LINE__, strerror(errno));
- return ret;
- }
-
- ret = read(fd, value, sizeof(value));
- if (ret < 0) {
- mpsslog("%s: %s %d Failed to read sysfs entry: %s\n",
- mic->name, __func__, __LINE__, strerror(errno));
- return ret;
- }
-
- return 0;
-}
-
-static void *
-mic_config(void *arg)
-{
- struct mic_info *mic = (struct mic_info *)arg;
- int fd, ret, stat = 0;
-
- fd = open_state_fd(mic);
- if (fd < 0) {
- mpsslog("%s: %s %d open state fd failed %s\n",
- mic->name, __func__, __LINE__, strerror(errno));
- goto exit;
- }
-
- do {
- ret = block_till_state_change(fd, mic);
- if (ret < 0) {
- mpsslog("%s: %s %d block_till_state_change error %s\n",
- mic->name, __func__, __LINE__, strerror(errno));
- goto close_exit;
- }
-
- switch (get_mic_state(mic)) {
- case MIC_SHUTTING_DOWN:
- mic_handle_shutdown(mic);
- break;
- case MIC_READY:
- case MIC_RESET_FAILED:
- ret = kill(mic->pid, SIGTERM);
- mpsslog("%s: %s %d kill pid %d ret %d\n",
- mic->name, __func__, __LINE__,
- mic->pid, ret);
- if (!ret) {
- ret = waitpid(mic->pid, &stat,
- WIFSIGNALED(stat));
- mpsslog("%s: %s %d waitpid ret %d pid %d\n",
- mic->name, __func__, __LINE__,
- ret, mic->pid);
- }
- if (mic->boot_on_resume) {
- setsysfs(mic->name, "state", "boot");
- mic->boot_on_resume = 0;
- }
- goto close_exit;
- default:
- break;
- }
- } while (1);
-
-close_exit:
- close(fd);
-exit:
- init_mic(mic);
- pthread_exit(NULL);
-}
-
-static void
-set_cmdline(struct mic_info *mic)
-{
- char buffer[PATH_MAX];
- int len;
-
- len = snprintf(buffer, PATH_MAX,
- "clocksource=tsc highres=off nohz=off ");
- len += snprintf(buffer + len, PATH_MAX - len,
- "cpufreq_on;corec6_off;pc3_off;pc6_off ");
- len += snprintf(buffer + len, PATH_MAX - len,
- "ifcfg=static;address,172.31.%d.1;netmask,255.255.255.0",
- mic->id + 1);
-
- setsysfs(mic->name, "cmdline", buffer);
- mpsslog("%s: Command line: \"%s\"\n", mic->name, buffer);
- snprintf(buffer, PATH_MAX, "172.31.%d.1", mic->id + 1);
- mpsslog("%s: IPADDR: \"%s\"\n", mic->name, buffer);
-}
-
-static void
-set_log_buf_info(struct mic_info *mic)
-{
- int fd;
- off_t len;
- char system_map[] = "/lib/firmware/mic/System.map";
- char *map, *temp, log_buf[17] = {'\0'};
-
- fd = open(system_map, O_RDONLY);
- if (fd < 0) {
- mpsslog("%s: Opening System.map failed: %d\n",
- mic->name, errno);
- return;
- }
- len = lseek(fd, 0, SEEK_END);
- if (len < 0) {
- mpsslog("%s: Reading System.map size failed: %d\n",
- mic->name, errno);
- close(fd);
- return;
- }
- map = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0);
- if (map == MAP_FAILED) {
- mpsslog("%s: mmap of System.map failed: %d\n",
- mic->name, errno);
- close(fd);
- return;
- }
- temp = strstr(map, "__log_buf");
- if (!temp) {
- mpsslog("%s: __log_buf not found: %d\n", mic->name, errno);
- munmap(map, len);
- close(fd);
- return;
- }
- strncpy(log_buf, temp - 19, 16);
- setsysfs(mic->name, "log_buf_addr", log_buf);
- mpsslog("%s: log_buf_addr: %s\n", mic->name, log_buf);
- temp = strstr(map, "log_buf_len");
- if (!temp) {
- mpsslog("%s: log_buf_len not found: %d\n", mic->name, errno);
- munmap(map, len);
- close(fd);
- return;
- }
- strncpy(log_buf, temp - 19, 16);
- setsysfs(mic->name, "log_buf_len", log_buf);
- mpsslog("%s: log_buf_len: %s\n", mic->name, log_buf);
- munmap(map, len);
- close(fd);
-}
-
-static void
-change_virtblk_backend(int x, siginfo_t *siginfo, void *p)
-{
- struct mic_info *mic;
-
- for (mic = mic_list.next; mic != NULL; mic = mic->next)
- mic->mic_virtblk.signaled = 1/* true */;
-}
-
-static void
-set_mic_boot_params(struct mic_info *mic)
-{
- set_log_buf_info(mic);
- set_cmdline(mic);
-}
-
-static void *
-init_mic(void *arg)
-{
- struct mic_info *mic = (struct mic_info *)arg;
- struct sigaction ignore = {
- .sa_flags = 0,
- .sa_handler = SIG_IGN
- };
- struct sigaction act = {
- .sa_flags = SA_SIGINFO,
- .sa_sigaction = change_virtblk_backend,
- };
- char buffer[PATH_MAX];
- int err, fd;
-
- /*
- * Currently, one virtio block device is supported for each MIC card
- * at a time. Any user (or test) can send a SIGUSR1 to the MIC daemon.
- * The signal informs the virtio block backend about a change in the
- * configuration file which specifies the virtio backend file name on
- * the host. Virtio block backend then re-reads the configuration file
- * and switches to the new block device. This signalling mechanism may
- * not be required once multiple virtio block devices are supported by
- * the MIC daemon.
- */
- sigaction(SIGUSR1, &ignore, NULL);
-retry:
- fd = open_state_fd(mic);
- if (fd < 0) {
- mpsslog("%s: %s %d open state fd failed %s\n",
- mic->name, __func__, __LINE__, strerror(errno));
- sleep(2);
- goto retry;
- }
-
- if (mic->restart) {
- snprintf(buffer, PATH_MAX, "boot");
- setsysfs(mic->name, "state", buffer);
- mpsslog("%s restarting mic %d\n",
- mic->name, mic->restart);
- mic->restart = 0;
- }
-
- while (1) {
- while (block_till_state_change(fd, mic)) {
- mpsslog("%s: %s %d block_till_state_change error %s\n",
- mic->name, __func__, __LINE__, strerror(errno));
- sleep(2);
- continue;
- }
-
- if (get_mic_state(mic) == MIC_BOOTING)
- break;
- }
-
- mic->pid = fork();
- switch (mic->pid) {
- case 0:
- add_virtio_device(mic, &virtcons_dev_page.dd);
- add_virtio_device(mic, &virtnet_dev_page.dd);
- err = pthread_create(&mic->mic_console.console_thread, NULL,
- virtio_console, mic);
- if (err)
- mpsslog("%s virtcons pthread_create failed %s\n",
- mic->name, strerror(err));
- err = pthread_create(&mic->mic_net.net_thread, NULL,
- virtio_net, mic);
- if (err)
- mpsslog("%s virtnet pthread_create failed %s\n",
- mic->name, strerror(err));
- err = pthread_create(&mic->mic_virtblk.block_thread, NULL,
- virtio_block, mic);
- if (err)
- mpsslog("%s virtblk pthread_create failed %s\n",
- mic->name, strerror(err));
- sigemptyset(&act.sa_mask);
- err = sigaction(SIGUSR1, &act, NULL);
- if (err)
- mpsslog("%s sigaction SIGUSR1 failed %s\n",
- mic->name, strerror(errno));
- while (1)
- sleep(60);
- case -1:
- mpsslog("fork failed MIC name %s id %d errno %d\n",
- mic->name, mic->id, errno);
- break;
- default:
- err = pthread_create(&mic->config_thread, NULL,
- mic_config, mic);
- if (err)
- mpsslog("%s mic_config pthread_create failed %s\n",
- mic->name, strerror(err));
- }
-
- return NULL;
-}
-
-static void
-start_daemon(void)
-{
- struct mic_info *mic;
- int err;
-
- for (mic = mic_list.next; mic; mic = mic->next) {
- set_mic_boot_params(mic);
- err = pthread_create(&mic->init_thread, NULL, init_mic, mic);
- if (err)
- mpsslog("%s init_mic pthread_create failed %s\n",
- mic->name, strerror(err));
- }
-
- while (1)
- sleep(60);
-}
-
-static int
-init_mic_list(void)
-{
- struct mic_info *mic = &mic_list;
- struct dirent *file;
- DIR *dp;
- int cnt = 0;
-
- dp = opendir(MICSYSFSDIR);
- if (!dp)
- return 0;
-
- while ((file = readdir(dp)) != NULL) {
- if (!strncmp(file->d_name, "mic", 3)) {
- mic->next = calloc(1, sizeof(struct mic_info));
- if (mic->next) {
- mic = mic->next;
- mic->id = atoi(&file->d_name[3]);
- mic->name = malloc(strlen(file->d_name) + 16);
- if (mic->name)
- strcpy(mic->name, file->d_name);
- mpsslog("MIC name %s id %d\n", mic->name,
- mic->id);
- cnt++;
- }
- }
- }
-
- closedir(dp);
- return cnt;
-}
-
-void
-mpsslog(char *format, ...)
-{
- va_list args;
- char buffer[4096];
- char ts[52], *ts1;
- time_t t;
-
- if (logfp == NULL)
- return;
-
- va_start(args, format);
- vsprintf(buffer, format, args);
- va_end(args);
-
- time(&t);
- ts1 = ctime_r(&t, ts);
- ts1[strlen(ts1) - 1] = '\0';
- fprintf(logfp, "%s: %s", ts1, buffer);
-
- fflush(logfp);
-}
-
-int
-main(int argc, char *argv[])
-{
- int cnt;
- pid_t pid;
-
- myname = argv[0];
-
- logfp = fopen(LOGFILE_NAME, "a+");
- if (!logfp) {
- fprintf(stderr, "cannot open logfile '%s'\n", LOGFILE_NAME);
- exit(1);
- }
- pid = fork();
- switch (pid) {
- case 0:
- break;
- case -1:
- exit(2);
- default:
- exit(0);
- }
-
- mpsslog("MIC Daemon start\n");
-
- cnt = init_mic_list();
- if (cnt == 0) {
- mpsslog("MIC module not loaded\n");
- exit(3);
- }
- mpsslog("MIC found %d devices\n", cnt);
-
- start_daemon();
-
- exit(0);
-}
diff --git a/Documentation/mic/mpssd/mpssd.h b/Documentation/mic/mpssd/mpssd.h
deleted file mode 100644
index 8bd64944aacc..000000000000
--- a/Documentation/mic/mpssd/mpssd.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC User Space Tools.
- */
-#ifndef _MPSSD_H_
-#define _MPSSD_H_
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <libgen.h>
-#include <pthread.h>
-#include <stdarg.h>
-#include <time.h>
-#include <errno.h>
-#include <sys/dir.h>
-#include <sys/ioctl.h>
-#include <sys/poll.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <pthread.h>
-#include <signal.h>
-#include <limits.h>
-#include <syslog.h>
-#include <getopt.h>
-#include <net/if.h>
-#include <linux/if_tun.h>
-#include <linux/if_tun.h>
-#include <linux/virtio_ids.h>
-
-#define MICSYSFSDIR "/sys/class/mic"
-#define LOGFILE_NAME "/var/log/mpssd"
-#define PAGE_SIZE 4096
-
-struct mic_console_info {
- pthread_t console_thread;
- int virtio_console_fd;
- void *console_dp;
-};
-
-struct mic_net_info {
- pthread_t net_thread;
- int virtio_net_fd;
- int tap_fd;
- void *net_dp;
-};
-
-struct mic_virtblk_info {
- pthread_t block_thread;
- int virtio_block_fd;
- void *block_dp;
- volatile sig_atomic_t signaled;
- char *backend_file;
- int backend;
- void *backend_addr;
- long backend_size;
-};
-
-struct mic_info {
- int id;
- char *name;
- pthread_t config_thread;
- pthread_t init_thread;
- pid_t pid;
- struct mic_console_info mic_console;
- struct mic_net_info mic_net;
- struct mic_virtblk_info mic_virtblk;
- int restart;
- int boot_on_resume;
- struct mic_info *next;
-};
-
-__attribute__((format(printf, 1, 2)))
-void mpsslog(char *format, ...);
-char *readsysfs(char *dir, char *entry);
-int setsysfs(char *dir, char *entry, char *value);
-#endif
diff --git a/Documentation/mic/mpssd/sysfs.c b/Documentation/mic/mpssd/sysfs.c
deleted file mode 100644
index 8dd326936083..000000000000
--- a/Documentation/mic/mpssd/sysfs.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC User Space Tools.
- */
-
-#include "mpssd.h"
-
-#define PAGE_SIZE 4096
-
-char *
-readsysfs(char *dir, char *entry)
-{
- char filename[PATH_MAX];
- char value[PAGE_SIZE];
- char *string = NULL;
- int fd;
- int len;
-
- if (dir == NULL)
- snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry);
- else
- snprintf(filename, PATH_MAX,
- "%s/%s/%s", MICSYSFSDIR, dir, entry);
-
- fd = open(filename, O_RDONLY);
- if (fd < 0) {
- mpsslog("Failed to open sysfs entry '%s': %s\n",
- filename, strerror(errno));
- return NULL;
- }
-
- len = read(fd, value, sizeof(value));
- if (len < 0) {
- mpsslog("Failed to read sysfs entry '%s': %s\n",
- filename, strerror(errno));
- goto readsys_ret;
- }
- if (len == 0)
- goto readsys_ret;
-
- value[len - 1] = '\0';
-
- string = malloc(strlen(value) + 1);
- if (string)
- strcpy(string, value);
-
-readsys_ret:
- close(fd);
- return string;
-}
-
-int
-setsysfs(char *dir, char *entry, char *value)
-{
- char filename[PATH_MAX];
- char *oldvalue;
- int fd, ret = 0;
-
- if (dir == NULL)
- snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry);
- else
- snprintf(filename, PATH_MAX, "%s/%s/%s",
- MICSYSFSDIR, dir, entry);
-
- oldvalue = readsysfs(dir, entry);
-
- fd = open(filename, O_RDWR);
- if (fd < 0) {
- ret = errno;
- mpsslog("Failed to open sysfs entry '%s': %s\n",
- filename, strerror(errno));
- goto done;
- }
-
- if (!oldvalue || strcmp(value, oldvalue)) {
- if (write(fd, value, strlen(value)) < 0) {
- ret = errno;
- mpsslog("Failed to write new sysfs entry '%s': %s\n",
- filename, strerror(errno));
- }
- }
- close(fd);
-done:
- if (oldvalue)
- free(oldvalue);
- return ret;
-}
diff --git a/Documentation/misc-devices/Makefile b/Documentation/misc-devices/Makefile
deleted file mode 100644
index e2b7aa4c9e21..000000000000
--- a/Documentation/misc-devices/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-subdir-y := mei
diff --git a/Documentation/misc-devices/mei/.gitignore b/Documentation/misc-devices/mei/.gitignore
deleted file mode 100644
index f356b81ca1ec..000000000000
--- a/Documentation/misc-devices/mei/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-mei-amt-version
diff --git a/Documentation/misc-devices/mei/Makefile b/Documentation/misc-devices/mei/Makefile
deleted file mode 100644
index d758047d1b6d..000000000000
--- a/Documentation/misc-devices/mei/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# List of programs to build
-hostprogs-y := mei-amt-version
-HOSTCFLAGS_mei-amt-version.o += -I$(objtree)/usr/include
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
diff --git a/Documentation/misc-devices/mei/TODO b/Documentation/misc-devices/mei/TODO
deleted file mode 100644
index 6b3625d3058c..000000000000
--- a/Documentation/misc-devices/mei/TODO
+++ /dev/null
@@ -1,2 +0,0 @@
-TODO:
- - Cleanup and split the timer function
diff --git a/Documentation/misc-devices/mei/mei-amt-version.c b/Documentation/misc-devices/mei/mei-amt-version.c
deleted file mode 100644
index 57d0d871dcf7..000000000000
--- a/Documentation/misc-devices/mei/mei-amt-version.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/******************************************************************************
- * Intel Management Engine Interface (Intel MEI) Linux driver
- * Intel MEI Interface Header
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2012 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Corporation.
- * linux-mei@linux.intel.com
- * http://www.intel.com
- *
- * BSD LICENSE
- *
- * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <unistd.h>
-#include <errno.h>
-#include <stdint.h>
-#include <stdbool.h>
-#include <bits/wordsize.h>
-#include <linux/mei.h>
-
-/*****************************************************************************
- * Intel Management Engine Interface
- *****************************************************************************/
-
-#define mei_msg(_me, fmt, ARGS...) do { \
- if (_me->verbose) \
- fprintf(stderr, fmt, ##ARGS); \
-} while (0)
-
-#define mei_err(_me, fmt, ARGS...) do { \
- fprintf(stderr, "Error: " fmt, ##ARGS); \
-} while (0)
-
-struct mei {
- uuid_le guid;
- bool initialized;
- bool verbose;
- unsigned int buf_size;
- unsigned char prot_ver;
- int fd;
-};
-
-static void mei_deinit(struct mei *cl)
-{
- if (cl->fd != -1)
- close(cl->fd);
- cl->fd = -1;
- cl->buf_size = 0;
- cl->prot_ver = 0;
- cl->initialized = false;
-}
-
-static bool mei_init(struct mei *me, const uuid_le *guid,
- unsigned char req_protocol_version, bool verbose)
-{
- int result;
- struct mei_client *cl;
- struct mei_connect_client_data data;
-
- me->verbose = verbose;
-
- me->fd = open("/dev/mei", O_RDWR);
- if (me->fd == -1) {
- mei_err(me, "Cannot establish a handle to the Intel MEI driver\n");
- goto err;
- }
- memcpy(&me->guid, guid, sizeof(*guid));
- memset(&data, 0, sizeof(data));
- me->initialized = true;
-
- memcpy(&data.in_client_uuid, &me->guid, sizeof(me->guid));
- result = ioctl(me->fd, IOCTL_MEI_CONNECT_CLIENT, &data);
- if (result) {
- mei_err(me, "IOCTL_MEI_CONNECT_CLIENT receive message. err=%d\n", result);
- goto err;
- }
- cl = &data.out_client_properties;
- mei_msg(me, "max_message_length %d\n", cl->max_msg_length);
- mei_msg(me, "protocol_version %d\n", cl->protocol_version);
-
- if ((req_protocol_version > 0) &&
- (cl->protocol_version != req_protocol_version)) {
- mei_err(me, "Intel MEI protocol version not supported\n");
- goto err;
- }
-
- me->buf_size = cl->max_msg_length;
- me->prot_ver = cl->protocol_version;
-
- return true;
-err:
- mei_deinit(me);
- return false;
-}
-
-static ssize_t mei_recv_msg(struct mei *me, unsigned char *buffer,
- ssize_t len, unsigned long timeout)
-{
- ssize_t rc;
-
- mei_msg(me, "call read length = %zd\n", len);
-
- rc = read(me->fd, buffer, len);
- if (rc < 0) {
- mei_err(me, "read failed with status %zd %s\n",
- rc, strerror(errno));
- mei_deinit(me);
- } else {
- mei_msg(me, "read succeeded with result %zd\n", rc);
- }
- return rc;
-}
-
-static ssize_t mei_send_msg(struct mei *me, const unsigned char *buffer,
- ssize_t len, unsigned long timeout)
-{
- struct timeval tv;
- ssize_t written;
- ssize_t rc;
- fd_set set;
-
- tv.tv_sec = timeout / 1000;
- tv.tv_usec = (timeout % 1000) * 1000000;
-
- mei_msg(me, "call write length = %zd\n", len);
-
- written = write(me->fd, buffer, len);
- if (written < 0) {
- rc = -errno;
- mei_err(me, "write failed with status %zd %s\n",
- written, strerror(errno));
- goto out;
- }
-
- FD_ZERO(&set);
- FD_SET(me->fd, &set);
- rc = select(me->fd + 1 , &set, NULL, NULL, &tv);
- if (rc > 0 && FD_ISSET(me->fd, &set)) {
- mei_msg(me, "write success\n");
- } else if (rc == 0) {
- mei_err(me, "write failed on timeout with status\n");
- goto out;
- } else { /* rc < 0 */
- mei_err(me, "write failed on select with status %zd\n", rc);
- goto out;
- }
-
- rc = written;
-out:
- if (rc < 0)
- mei_deinit(me);
-
- return rc;
-}
-
-/***************************************************************************
- * Intel Advanced Management Technology ME Client
- ***************************************************************************/
-
-#define AMT_MAJOR_VERSION 1
-#define AMT_MINOR_VERSION 1
-
-#define AMT_STATUS_SUCCESS 0x0
-#define AMT_STATUS_INTERNAL_ERROR 0x1
-#define AMT_STATUS_NOT_READY 0x2
-#define AMT_STATUS_INVALID_AMT_MODE 0x3
-#define AMT_STATUS_INVALID_MESSAGE_LENGTH 0x4
-
-#define AMT_STATUS_HOST_IF_EMPTY_RESPONSE 0x4000
-#define AMT_STATUS_SDK_RESOURCES 0x1004
-
-
-#define AMT_BIOS_VERSION_LEN 65
-#define AMT_VERSIONS_NUMBER 50
-#define AMT_UNICODE_STRING_LEN 20
-
-struct amt_unicode_string {
- uint16_t length;
- char string[AMT_UNICODE_STRING_LEN];
-} __attribute__((packed));
-
-struct amt_version_type {
- struct amt_unicode_string description;
- struct amt_unicode_string version;
-} __attribute__((packed));
-
-struct amt_version {
- uint8_t major;
- uint8_t minor;
-} __attribute__((packed));
-
-struct amt_code_versions {
- uint8_t bios[AMT_BIOS_VERSION_LEN];
- uint32_t count;
- struct amt_version_type versions[AMT_VERSIONS_NUMBER];
-} __attribute__((packed));
-
-/***************************************************************************
- * Intel Advanced Management Technology Host Interface
- ***************************************************************************/
-
-struct amt_host_if_msg_header {
- struct amt_version version;
- uint16_t _reserved;
- uint32_t command;
- uint32_t length;
-} __attribute__((packed));
-
-struct amt_host_if_resp_header {
- struct amt_host_if_msg_header header;
- uint32_t status;
- unsigned char data[0];
-} __attribute__((packed));
-
-const uuid_le MEI_IAMTHIF = UUID_LE(0x12f80028, 0xb4b7, 0x4b2d, \
- 0xac, 0xa8, 0x46, 0xe0, 0xff, 0x65, 0x81, 0x4c);
-
-#define AMT_HOST_IF_CODE_VERSIONS_REQUEST 0x0400001A
-#define AMT_HOST_IF_CODE_VERSIONS_RESPONSE 0x0480001A
-
-const struct amt_host_if_msg_header CODE_VERSION_REQ = {
- .version = {AMT_MAJOR_VERSION, AMT_MINOR_VERSION},
- ._reserved = 0,
- .command = AMT_HOST_IF_CODE_VERSIONS_REQUEST,
- .length = 0
-};
-
-
-struct amt_host_if {
- struct mei mei_cl;
- unsigned long send_timeout;
- bool initialized;
-};
-
-
-static bool amt_host_if_init(struct amt_host_if *acmd,
- unsigned long send_timeout, bool verbose)
-{
- acmd->send_timeout = (send_timeout) ? send_timeout : 20000;
- acmd->initialized = mei_init(&acmd->mei_cl, &MEI_IAMTHIF, 0, verbose);
- return acmd->initialized;
-}
-
-static void amt_host_if_deinit(struct amt_host_if *acmd)
-{
- mei_deinit(&acmd->mei_cl);
- acmd->initialized = false;
-}
-
-static uint32_t amt_verify_code_versions(const struct amt_host_if_resp_header *resp)
-{
- uint32_t status = AMT_STATUS_SUCCESS;
- struct amt_code_versions *code_ver;
- size_t code_ver_len;
- uint32_t ver_type_cnt;
- uint32_t len;
- uint32_t i;
-
- code_ver = (struct amt_code_versions *)resp->data;
- /* length - sizeof(status) */
- code_ver_len = resp->header.length - sizeof(uint32_t);
- ver_type_cnt = code_ver_len -
- sizeof(code_ver->bios) -
- sizeof(code_ver->count);
- if (code_ver->count != ver_type_cnt / sizeof(struct amt_version_type)) {
- status = AMT_STATUS_INTERNAL_ERROR;
- goto out;
- }
-
- for (i = 0; i < code_ver->count; i++) {
- len = code_ver->versions[i].description.length;
-
- if (len > AMT_UNICODE_STRING_LEN) {
- status = AMT_STATUS_INTERNAL_ERROR;
- goto out;
- }
-
- len = code_ver->versions[i].version.length;
- if (code_ver->versions[i].version.string[len] != '\0' ||
- len != strlen(code_ver->versions[i].version.string)) {
- status = AMT_STATUS_INTERNAL_ERROR;
- goto out;
- }
- }
-out:
- return status;
-}
-
-static uint32_t amt_verify_response_header(uint32_t command,
- const struct amt_host_if_msg_header *resp_hdr,
- uint32_t response_size)
-{
- if (response_size < sizeof(struct amt_host_if_resp_header)) {
- return AMT_STATUS_INTERNAL_ERROR;
- } else if (response_size != (resp_hdr->length +
- sizeof(struct amt_host_if_msg_header))) {
- return AMT_STATUS_INTERNAL_ERROR;
- } else if (resp_hdr->command != command) {
- return AMT_STATUS_INTERNAL_ERROR;
- } else if (resp_hdr->_reserved != 0) {
- return AMT_STATUS_INTERNAL_ERROR;
- } else if (resp_hdr->version.major != AMT_MAJOR_VERSION ||
- resp_hdr->version.minor < AMT_MINOR_VERSION) {
- return AMT_STATUS_INTERNAL_ERROR;
- }
- return AMT_STATUS_SUCCESS;
-}
-
-static uint32_t amt_host_if_call(struct amt_host_if *acmd,
- const unsigned char *command, ssize_t command_sz,
- uint8_t **read_buf, uint32_t rcmd,
- unsigned int expected_sz)
-{
- uint32_t in_buf_sz;
- uint32_t out_buf_sz;
- ssize_t written;
- uint32_t status;
- struct amt_host_if_resp_header *msg_hdr;
-
- in_buf_sz = acmd->mei_cl.buf_size;
- *read_buf = (uint8_t *)malloc(sizeof(uint8_t) * in_buf_sz);
- if (*read_buf == NULL)
- return AMT_STATUS_SDK_RESOURCES;
- memset(*read_buf, 0, in_buf_sz);
- msg_hdr = (struct amt_host_if_resp_header *)*read_buf;
-
- written = mei_send_msg(&acmd->mei_cl,
- command, command_sz, acmd->send_timeout);
- if (written != command_sz)
- return AMT_STATUS_INTERNAL_ERROR;
-
- out_buf_sz = mei_recv_msg(&acmd->mei_cl, *read_buf, in_buf_sz, 2000);
- if (out_buf_sz <= 0)
- return AMT_STATUS_HOST_IF_EMPTY_RESPONSE;
-
- status = msg_hdr->status;
- if (status != AMT_STATUS_SUCCESS)
- return status;
-
- status = amt_verify_response_header(rcmd,
- &msg_hdr->header, out_buf_sz);
- if (status != AMT_STATUS_SUCCESS)
- return status;
-
- if (expected_sz && expected_sz != out_buf_sz)
- return AMT_STATUS_INTERNAL_ERROR;
-
- return AMT_STATUS_SUCCESS;
-}
-
-
-static uint32_t amt_get_code_versions(struct amt_host_if *cmd,
- struct amt_code_versions *versions)
-{
- struct amt_host_if_resp_header *response = NULL;
- uint32_t status;
-
- status = amt_host_if_call(cmd,
- (const unsigned char *)&CODE_VERSION_REQ,
- sizeof(CODE_VERSION_REQ),
- (uint8_t **)&response,
- AMT_HOST_IF_CODE_VERSIONS_RESPONSE, 0);
-
- if (status != AMT_STATUS_SUCCESS)
- goto out;
-
- status = amt_verify_code_versions(response);
- if (status != AMT_STATUS_SUCCESS)
- goto out;
-
- memcpy(versions, response->data, sizeof(struct amt_code_versions));
-out:
- if (response != NULL)
- free(response);
-
- return status;
-}
-
-/************************** end of amt_host_if_command ***********************/
-int main(int argc, char **argv)
-{
- struct amt_code_versions ver;
- struct amt_host_if acmd;
- unsigned int i;
- uint32_t status;
- int ret;
- bool verbose;
-
- verbose = (argc > 1 && strcmp(argv[1], "-v") == 0);
-
- if (!amt_host_if_init(&acmd, 5000, verbose)) {
- ret = 1;
- goto out;
- }
-
- status = amt_get_code_versions(&acmd, &ver);
-
- amt_host_if_deinit(&acmd);
-
- switch (status) {
- case AMT_STATUS_HOST_IF_EMPTY_RESPONSE:
- printf("Intel AMT: DISABLED\n");
- ret = 0;
- break;
- case AMT_STATUS_SUCCESS:
- printf("Intel AMT: ENABLED\n");
- for (i = 0; i < ver.count; i++) {
- printf("%s:\t%s\n", ver.versions[i].description.string,
- ver.versions[i].version.string);
- }
- ret = 0;
- break;
- default:
- printf("An error has occurred\n");
- ret = 1;
- break;
- }
-
-out:
- return ret;
-}
diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX
index a7697783ac4c..c6beb5f1637f 100644
--- a/Documentation/networking/00-INDEX
+++ b/Documentation/networking/00-INDEX
@@ -10,8 +10,6 @@ LICENSE.qlge
- GPLv2 for QLogic Linux qlge NIC Driver
LICENSE.qlcnic
- GPLv2 for QLogic Linux qlcnic NIC Driver
-Makefile
- - Makefile for docsrc.
PLIP.txt
- PLIP: The Parallel Line Internet Protocol device driver
README.ipw2100
diff --git a/Documentation/networking/Makefile b/Documentation/networking/Makefile
deleted file mode 100644
index 4c5d7c485439..000000000000
--- a/Documentation/networking/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-subdir-y := timestamping
diff --git a/Documentation/networking/timestamping/.gitignore b/Documentation/networking/timestamping/.gitignore
deleted file mode 100644
index 9e69e982fb38..000000000000
--- a/Documentation/networking/timestamping/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-timestamping
-txtimestamp
-hwtstamp_config
diff --git a/Documentation/networking/timestamping/Makefile b/Documentation/networking/timestamping/Makefile
deleted file mode 100644
index 8c20dfaa4d6e..000000000000
--- a/Documentation/networking/timestamping/Makefile
+++ /dev/null
@@ -1,14 +0,0 @@
-# To compile, from the source root
-#
-# make headers_install
-# make M=documentation
-
-# List of programs to build
-hostprogs-y := hwtstamp_config timestamping txtimestamp
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
-
-HOSTCFLAGS_timestamping.o += -I$(objtree)/usr/include
-HOSTCFLAGS_txtimestamp.o += -I$(objtree)/usr/include
-HOSTCFLAGS_hwtstamp_config.o += -I$(objtree)/usr/include
diff --git a/Documentation/networking/timestamping/hwtstamp_config.c b/Documentation/networking/timestamping/hwtstamp_config.c
deleted file mode 100644
index e8b685a7f15f..000000000000
--- a/Documentation/networking/timestamping/hwtstamp_config.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/* Test program for SIOC{G,S}HWTSTAMP
- * Copyright 2013 Solarflare Communications
- * Author: Ben Hutchings
- */
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-
-#include <linux/if.h>
-#include <linux/net_tstamp.h>
-#include <linux/sockios.h>
-
-static int
-lookup_value(const char **names, int size, const char *name)
-{
- int value;
-
- for (value = 0; value < size; value++)
- if (names[value] && strcasecmp(names[value], name) == 0)
- return value;
-
- return -1;
-}
-
-static const char *
-lookup_name(const char **names, int size, int value)
-{
- return (value >= 0 && value < size) ? names[value] : NULL;
-}
-
-static void list_names(FILE *f, const char **names, int size)
-{
- int value;
-
- for (value = 0; value < size; value++)
- if (names[value])
- fprintf(f, " %s\n", names[value]);
-}
-
-static const char *tx_types[] = {
-#define TX_TYPE(name) [HWTSTAMP_TX_ ## name] = #name
- TX_TYPE(OFF),
- TX_TYPE(ON),
- TX_TYPE(ONESTEP_SYNC)
-#undef TX_TYPE
-};
-#define N_TX_TYPES ((int)(sizeof(tx_types) / sizeof(tx_types[0])))
-
-static const char *rx_filters[] = {
-#define RX_FILTER(name) [HWTSTAMP_FILTER_ ## name] = #name
- RX_FILTER(NONE),
- RX_FILTER(ALL),
- RX_FILTER(SOME),
- RX_FILTER(PTP_V1_L4_EVENT),
- RX_FILTER(PTP_V1_L4_SYNC),
- RX_FILTER(PTP_V1_L4_DELAY_REQ),
- RX_FILTER(PTP_V2_L4_EVENT),
- RX_FILTER(PTP_V2_L4_SYNC),
- RX_FILTER(PTP_V2_L4_DELAY_REQ),
- RX_FILTER(PTP_V2_L2_EVENT),
- RX_FILTER(PTP_V2_L2_SYNC),
- RX_FILTER(PTP_V2_L2_DELAY_REQ),
- RX_FILTER(PTP_V2_EVENT),
- RX_FILTER(PTP_V2_SYNC),
- RX_FILTER(PTP_V2_DELAY_REQ),
-#undef RX_FILTER
-};
-#define N_RX_FILTERS ((int)(sizeof(rx_filters) / sizeof(rx_filters[0])))
-
-static void usage(void)
-{
- fputs("Usage: hwtstamp_config if_name [tx_type rx_filter]\n"
- "tx_type is any of (case-insensitive):\n",
- stderr);
- list_names(stderr, tx_types, N_TX_TYPES);
- fputs("rx_filter is any of (case-insensitive):\n", stderr);
- list_names(stderr, rx_filters, N_RX_FILTERS);
-}
-
-int main(int argc, char **argv)
-{
- struct ifreq ifr;
- struct hwtstamp_config config;
- const char *name;
- int sock;
-
- if ((argc != 2 && argc != 4) || (strlen(argv[1]) >= IFNAMSIZ)) {
- usage();
- return 2;
- }
-
- if (argc == 4) {
- config.flags = 0;
- config.tx_type = lookup_value(tx_types, N_TX_TYPES, argv[2]);
- config.rx_filter = lookup_value(rx_filters, N_RX_FILTERS, argv[3]);
- if (config.tx_type < 0 || config.rx_filter < 0) {
- usage();
- return 2;
- }
- }
-
- sock = socket(AF_INET, SOCK_DGRAM, 0);
- if (sock < 0) {
- perror("socket");
- return 1;
- }
-
- strcpy(ifr.ifr_name, argv[1]);
- ifr.ifr_data = (caddr_t)&config;
-
- if (ioctl(sock, (argc == 2) ? SIOCGHWTSTAMP : SIOCSHWTSTAMP, &ifr)) {
- perror("ioctl");
- return 1;
- }
-
- printf("flags = %#x\n", config.flags);
- name = lookup_name(tx_types, N_TX_TYPES, config.tx_type);
- if (name)
- printf("tx_type = %s\n", name);
- else
- printf("tx_type = %d\n", config.tx_type);
- name = lookup_name(rx_filters, N_RX_FILTERS, config.rx_filter);
- if (name)
- printf("rx_filter = %s\n", name);
- else
- printf("rx_filter = %d\n", config.rx_filter);
-
- return 0;
-}
diff --git a/Documentation/networking/timestamping/timestamping.c b/Documentation/networking/timestamping/timestamping.c
deleted file mode 100644
index 5cdfd743447b..000000000000
--- a/Documentation/networking/timestamping/timestamping.c
+++ /dev/null
@@ -1,528 +0,0 @@
-/*
- * This program demonstrates how the various time stamping features in
- * the Linux kernel work. It emulates the behavior of a PTP
- * implementation in stand-alone master mode by sending PTPv1 Sync
- * multicasts once every second. It looks for similar packets, but
- * beyond that doesn't actually implement PTP.
- *
- * Outgoing packets are time stamped with SO_TIMESTAMPING with or
- * without hardware support.
- *
- * Incoming packets are time stamped with SO_TIMESTAMPING with or
- * without hardware support, SIOCGSTAMP[NS] (per-socket time stamp) and
- * SO_TIMESTAMP[NS].
- *
- * Copyright (C) 2009 Intel Corporation.
- * Author: Patrick Ohly <patrick.ohly@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <string.h>
-
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <sys/select.h>
-#include <sys/ioctl.h>
-#include <arpa/inet.h>
-#include <net/if.h>
-
-#include <asm/types.h>
-#include <linux/net_tstamp.h>
-#include <linux/errqueue.h>
-
-#ifndef SO_TIMESTAMPING
-# define SO_TIMESTAMPING 37
-# define SCM_TIMESTAMPING SO_TIMESTAMPING
-#endif
-
-#ifndef SO_TIMESTAMPNS
-# define SO_TIMESTAMPNS 35
-#endif
-
-#ifndef SIOCGSTAMPNS
-# define SIOCGSTAMPNS 0x8907
-#endif
-
-#ifndef SIOCSHWTSTAMP
-# define SIOCSHWTSTAMP 0x89b0
-#endif
-
-static void usage(const char *error)
-{
- if (error)
- printf("invalid option: %s\n", error);
- printf("timestamping interface option*\n\n"
- "Options:\n"
- " IP_MULTICAST_LOOP - looping outgoing multicasts\n"
- " SO_TIMESTAMP - normal software time stamping, ms resolution\n"
- " SO_TIMESTAMPNS - more accurate software time stamping\n"
- " SOF_TIMESTAMPING_TX_HARDWARE - hardware time stamping of outgoing packets\n"
- " SOF_TIMESTAMPING_TX_SOFTWARE - software fallback for outgoing packets\n"
- " SOF_TIMESTAMPING_RX_HARDWARE - hardware time stamping of incoming packets\n"
- " SOF_TIMESTAMPING_RX_SOFTWARE - software fallback for incoming packets\n"
- " SOF_TIMESTAMPING_SOFTWARE - request reporting of software time stamps\n"
- " SOF_TIMESTAMPING_RAW_HARDWARE - request reporting of raw HW time stamps\n"
- " SIOCGSTAMP - check last socket time stamp\n"
- " SIOCGSTAMPNS - more accurate socket time stamp\n");
- exit(1);
-}
-
-static void bail(const char *error)
-{
- printf("%s: %s\n", error, strerror(errno));
- exit(1);
-}
-
-static const unsigned char sync[] = {
- 0x00, 0x01, 0x00, 0x01,
- 0x5f, 0x44, 0x46, 0x4c,
- 0x54, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x01, 0x01,
-
- /* fake uuid */
- 0x00, 0x01,
- 0x02, 0x03, 0x04, 0x05,
-
- 0x00, 0x01, 0x00, 0x37,
- 0x00, 0x00, 0x00, 0x08,
- 0x00, 0x00, 0x00, 0x00,
- 0x49, 0x05, 0xcd, 0x01,
- 0x29, 0xb1, 0x8d, 0xb0,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x01,
-
- /* fake uuid */
- 0x00, 0x01,
- 0x02, 0x03, 0x04, 0x05,
-
- 0x00, 0x00, 0x00, 0x37,
- 0x00, 0x00, 0x00, 0x04,
- 0x44, 0x46, 0x4c, 0x54,
- 0x00, 0x00, 0xf0, 0x60,
- 0x00, 0x01, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x01,
- 0x00, 0x00, 0xf0, 0x60,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x04,
- 0x44, 0x46, 0x4c, 0x54,
- 0x00, 0x01,
-
- /* fake uuid */
- 0x00, 0x01,
- 0x02, 0x03, 0x04, 0x05,
-
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00
-};
-
-static void sendpacket(int sock, struct sockaddr *addr, socklen_t addr_len)
-{
- struct timeval now;
- int res;
-
- res = sendto(sock, sync, sizeof(sync), 0,
- addr, addr_len);
- gettimeofday(&now, 0);
- if (res < 0)
- printf("%s: %s\n", "send", strerror(errno));
- else
- printf("%ld.%06ld: sent %d bytes\n",
- (long)now.tv_sec, (long)now.tv_usec,
- res);
-}
-
-static void printpacket(struct msghdr *msg, int res,
- char *data,
- int sock, int recvmsg_flags,
- int siocgstamp, int siocgstampns)
-{
- struct sockaddr_in *from_addr = (struct sockaddr_in *)msg->msg_name;
- struct cmsghdr *cmsg;
- struct timeval tv;
- struct timespec ts;
- struct timeval now;
-
- gettimeofday(&now, 0);
-
- printf("%ld.%06ld: received %s data, %d bytes from %s, %zu bytes control messages\n",
- (long)now.tv_sec, (long)now.tv_usec,
- (recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
- res,
- inet_ntoa(from_addr->sin_addr),
- msg->msg_controllen);
- for (cmsg = CMSG_FIRSTHDR(msg);
- cmsg;
- cmsg = CMSG_NXTHDR(msg, cmsg)) {
- printf(" cmsg len %zu: ", cmsg->cmsg_len);
- switch (cmsg->cmsg_level) {
- case SOL_SOCKET:
- printf("SOL_SOCKET ");
- switch (cmsg->cmsg_type) {
- case SO_TIMESTAMP: {
- struct timeval *stamp =
- (struct timeval *)CMSG_DATA(cmsg);
- printf("SO_TIMESTAMP %ld.%06ld",
- (long)stamp->tv_sec,
- (long)stamp->tv_usec);
- break;
- }
- case SO_TIMESTAMPNS: {
- struct timespec *stamp =
- (struct timespec *)CMSG_DATA(cmsg);
- printf("SO_TIMESTAMPNS %ld.%09ld",
- (long)stamp->tv_sec,
- (long)stamp->tv_nsec);
- break;
- }
- case SO_TIMESTAMPING: {
- struct timespec *stamp =
- (struct timespec *)CMSG_DATA(cmsg);
- printf("SO_TIMESTAMPING ");
- printf("SW %ld.%09ld ",
- (long)stamp->tv_sec,
- (long)stamp->tv_nsec);
- stamp++;
- /* skip deprecated HW transformed */
- stamp++;
- printf("HW raw %ld.%09ld",
- (long)stamp->tv_sec,
- (long)stamp->tv_nsec);
- break;
- }
- default:
- printf("type %d", cmsg->cmsg_type);
- break;
- }
- break;
- case IPPROTO_IP:
- printf("IPPROTO_IP ");
- switch (cmsg->cmsg_type) {
- case IP_RECVERR: {
- struct sock_extended_err *err =
- (struct sock_extended_err *)CMSG_DATA(cmsg);
- printf("IP_RECVERR ee_errno '%s' ee_origin %d => %s",
- strerror(err->ee_errno),
- err->ee_origin,
-#ifdef SO_EE_ORIGIN_TIMESTAMPING
- err->ee_origin == SO_EE_ORIGIN_TIMESTAMPING ?
- "bounced packet" : "unexpected origin"
-#else
- "probably SO_EE_ORIGIN_TIMESTAMPING"
-#endif
- );
- if (res < sizeof(sync))
- printf(" => truncated data?!");
- else if (!memcmp(sync, data + res - sizeof(sync),
- sizeof(sync)))
- printf(" => GOT OUR DATA BACK (HURRAY!)");
- break;
- }
- case IP_PKTINFO: {
- struct in_pktinfo *pktinfo =
- (struct in_pktinfo *)CMSG_DATA(cmsg);
- printf("IP_PKTINFO interface index %u",
- pktinfo->ipi_ifindex);
- break;
- }
- default:
- printf("type %d", cmsg->cmsg_type);
- break;
- }
- break;
- default:
- printf("level %d type %d",
- cmsg->cmsg_level,
- cmsg->cmsg_type);
- break;
- }
- printf("\n");
- }
-
- if (siocgstamp) {
- if (ioctl(sock, SIOCGSTAMP, &tv))
- printf(" %s: %s\n", "SIOCGSTAMP", strerror(errno));
- else
- printf("SIOCGSTAMP %ld.%06ld\n",
- (long)tv.tv_sec,
- (long)tv.tv_usec);
- }
- if (siocgstampns) {
- if (ioctl(sock, SIOCGSTAMPNS, &ts))
- printf(" %s: %s\n", "SIOCGSTAMPNS", strerror(errno));
- else
- printf("SIOCGSTAMPNS %ld.%09ld\n",
- (long)ts.tv_sec,
- (long)ts.tv_nsec);
- }
-}
-
-static void recvpacket(int sock, int recvmsg_flags,
- int siocgstamp, int siocgstampns)
-{
- char data[256];
- struct msghdr msg;
- struct iovec entry;
- struct sockaddr_in from_addr;
- struct {
- struct cmsghdr cm;
- char control[512];
- } control;
- int res;
-
- memset(&msg, 0, sizeof(msg));
- msg.msg_iov = &entry;
- msg.msg_iovlen = 1;
- entry.iov_base = data;
- entry.iov_len = sizeof(data);
- msg.msg_name = (caddr_t)&from_addr;
- msg.msg_namelen = sizeof(from_addr);
- msg.msg_control = &control;
- msg.msg_controllen = sizeof(control);
-
- res = recvmsg(sock, &msg, recvmsg_flags|MSG_DONTWAIT);
- if (res < 0) {
- printf("%s %s: %s\n",
- "recvmsg",
- (recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
- strerror(errno));
- } else {
- printpacket(&msg, res, data,
- sock, recvmsg_flags,
- siocgstamp, siocgstampns);
- }
-}
-
-int main(int argc, char **argv)
-{
- int so_timestamping_flags = 0;
- int so_timestamp = 0;
- int so_timestampns = 0;
- int siocgstamp = 0;
- int siocgstampns = 0;
- int ip_multicast_loop = 0;
- char *interface;
- int i;
- int enabled = 1;
- int sock;
- struct ifreq device;
- struct ifreq hwtstamp;
- struct hwtstamp_config hwconfig, hwconfig_requested;
- struct sockaddr_in addr;
- struct ip_mreq imr;
- struct in_addr iaddr;
- int val;
- socklen_t len;
- struct timeval next;
-
- if (argc < 2)
- usage(0);
- interface = argv[1];
-
- for (i = 2; i < argc; i++) {
- if (!strcasecmp(argv[i], "SO_TIMESTAMP"))
- so_timestamp = 1;
- else if (!strcasecmp(argv[i], "SO_TIMESTAMPNS"))
- so_timestampns = 1;
- else if (!strcasecmp(argv[i], "SIOCGSTAMP"))
- siocgstamp = 1;
- else if (!strcasecmp(argv[i], "SIOCGSTAMPNS"))
- siocgstampns = 1;
- else if (!strcasecmp(argv[i], "IP_MULTICAST_LOOP"))
- ip_multicast_loop = 1;
- else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_HARDWARE"))
- so_timestamping_flags |= SOF_TIMESTAMPING_TX_HARDWARE;
- else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_SOFTWARE"))
- so_timestamping_flags |= SOF_TIMESTAMPING_TX_SOFTWARE;
- else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_HARDWARE"))
- so_timestamping_flags |= SOF_TIMESTAMPING_RX_HARDWARE;
- else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_SOFTWARE"))
- so_timestamping_flags |= SOF_TIMESTAMPING_RX_SOFTWARE;
- else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_SOFTWARE"))
- so_timestamping_flags |= SOF_TIMESTAMPING_SOFTWARE;
- else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RAW_HARDWARE"))
- so_timestamping_flags |= SOF_TIMESTAMPING_RAW_HARDWARE;
- else
- usage(argv[i]);
- }
-
- sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
- if (sock < 0)
- bail("socket");
-
- memset(&device, 0, sizeof(device));
- strncpy(device.ifr_name, interface, sizeof(device.ifr_name));
- if (ioctl(sock, SIOCGIFADDR, &device) < 0)
- bail("getting interface IP address");
-
- memset(&hwtstamp, 0, sizeof(hwtstamp));
- strncpy(hwtstamp.ifr_name, interface, sizeof(hwtstamp.ifr_name));
- hwtstamp.ifr_data = (void *)&hwconfig;
- memset(&hwconfig, 0, sizeof(hwconfig));
- hwconfig.tx_type =
- (so_timestamping_flags & SOF_TIMESTAMPING_TX_HARDWARE) ?
- HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
- hwconfig.rx_filter =
- (so_timestamping_flags & SOF_TIMESTAMPING_RX_HARDWARE) ?
- HWTSTAMP_FILTER_PTP_V1_L4_SYNC : HWTSTAMP_FILTER_NONE;
- hwconfig_requested = hwconfig;
- if (ioctl(sock, SIOCSHWTSTAMP, &hwtstamp) < 0) {
- if ((errno == EINVAL || errno == ENOTSUP) &&
- hwconfig_requested.tx_type == HWTSTAMP_TX_OFF &&
- hwconfig_requested.rx_filter == HWTSTAMP_FILTER_NONE)
- printf("SIOCSHWTSTAMP: disabling hardware time stamping not possible\n");
- else
- bail("SIOCSHWTSTAMP");
- }
- printf("SIOCSHWTSTAMP: tx_type %d requested, got %d; rx_filter %d requested, got %d\n",
- hwconfig_requested.tx_type, hwconfig.tx_type,
- hwconfig_requested.rx_filter, hwconfig.rx_filter);
-
- /* bind to PTP port */
- addr.sin_family = AF_INET;
- addr.sin_addr.s_addr = htonl(INADDR_ANY);
- addr.sin_port = htons(319 /* PTP event port */);
- if (bind(sock,
- (struct sockaddr *)&addr,
- sizeof(struct sockaddr_in)) < 0)
- bail("bind");
-
- /* set multicast group for outgoing packets */
- inet_aton("224.0.1.130", &iaddr); /* alternate PTP domain 1 */
- addr.sin_addr = iaddr;
- imr.imr_multiaddr.s_addr = iaddr.s_addr;
- imr.imr_interface.s_addr =
- ((struct sockaddr_in *)&device.ifr_addr)->sin_addr.s_addr;
- if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF,
- &imr.imr_interface.s_addr, sizeof(struct in_addr)) < 0)
- bail("set multicast");
-
- /* join multicast group, loop our own packet */
- if (setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,
- &imr, sizeof(struct ip_mreq)) < 0)
- bail("join multicast group");
-
- if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_LOOP,
- &ip_multicast_loop, sizeof(enabled)) < 0) {
- bail("loop multicast");
- }
-
- /* set socket options for time stamping */
- if (so_timestamp &&
- setsockopt(sock, SOL_SOCKET, SO_TIMESTAMP,
- &enabled, sizeof(enabled)) < 0)
- bail("setsockopt SO_TIMESTAMP");
-
- if (so_timestampns &&
- setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS,
- &enabled, sizeof(enabled)) < 0)
- bail("setsockopt SO_TIMESTAMPNS");
-
- if (so_timestamping_flags &&
- setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING,
- &so_timestamping_flags,
- sizeof(so_timestamping_flags)) < 0)
- bail("setsockopt SO_TIMESTAMPING");
-
- /* request IP_PKTINFO for debugging purposes */
- if (setsockopt(sock, SOL_IP, IP_PKTINFO,
- &enabled, sizeof(enabled)) < 0)
- printf("%s: %s\n", "setsockopt IP_PKTINFO", strerror(errno));
-
- /* verify socket options */
- len = sizeof(val);
- if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMP, &val, &len) < 0)
- printf("%s: %s\n", "getsockopt SO_TIMESTAMP", strerror(errno));
- else
- printf("SO_TIMESTAMP %d\n", val);
-
- if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS, &val, &len) < 0)
- printf("%s: %s\n", "getsockopt SO_TIMESTAMPNS",
- strerror(errno));
- else
- printf("SO_TIMESTAMPNS %d\n", val);
-
- if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING, &val, &len) < 0) {
- printf("%s: %s\n", "getsockopt SO_TIMESTAMPING",
- strerror(errno));
- } else {
- printf("SO_TIMESTAMPING %d\n", val);
- if (val != so_timestamping_flags)
- printf(" not the expected value %d\n",
- so_timestamping_flags);
- }
-
- /* send packets forever every five seconds */
- gettimeofday(&next, 0);
- next.tv_sec = (next.tv_sec + 1) / 5 * 5;
- next.tv_usec = 0;
- while (1) {
- struct timeval now;
- struct timeval delta;
- long delta_us;
- int res;
- fd_set readfs, errorfs;
-
- gettimeofday(&now, 0);
- delta_us = (long)(next.tv_sec - now.tv_sec) * 1000000 +
- (long)(next.tv_usec - now.tv_usec);
- if (delta_us > 0) {
- /* continue waiting for timeout or data */
- delta.tv_sec = delta_us / 1000000;
- delta.tv_usec = delta_us % 1000000;
-
- FD_ZERO(&readfs);
- FD_ZERO(&errorfs);
- FD_SET(sock, &readfs);
- FD_SET(sock, &errorfs);
- printf("%ld.%06ld: select %ldus\n",
- (long)now.tv_sec, (long)now.tv_usec,
- delta_us);
- res = select(sock + 1, &readfs, 0, &errorfs, &delta);
- gettimeofday(&now, 0);
- printf("%ld.%06ld: select returned: %d, %s\n",
- (long)now.tv_sec, (long)now.tv_usec,
- res,
- res < 0 ? strerror(errno) : "success");
- if (res > 0) {
- if (FD_ISSET(sock, &readfs))
- printf("ready for reading\n");
- if (FD_ISSET(sock, &errorfs))
- printf("has error\n");
- recvpacket(sock, 0,
- siocgstamp,
- siocgstampns);
- recvpacket(sock, MSG_ERRQUEUE,
- siocgstamp,
- siocgstampns);
- }
- } else {
- /* write one packet */
- sendpacket(sock,
- (struct sockaddr *)&addr,
- sizeof(addr));
- next.tv_sec += 5;
- continue;
- }
- }
-
- return 0;
-}
diff --git a/Documentation/networking/timestamping/txtimestamp.c b/Documentation/networking/timestamping/txtimestamp.c
deleted file mode 100644
index 5df07047ca86..000000000000
--- a/Documentation/networking/timestamping/txtimestamp.c
+++ /dev/null
@@ -1,549 +0,0 @@
-/*
- * Copyright 2014 Google Inc.
- * Author: willemb@google.com (Willem de Bruijn)
- *
- * Test software tx timestamping, including
- *
- * - SCHED, SND and ACK timestamps
- * - RAW, UDP and TCP
- * - IPv4 and IPv6
- * - various packet sizes (to test GSO and TSO)
- *
- * Consult the command line arguments for help on running
- * the various testcases.
- *
- * This test requires a dummy TCP server.
- * A simple `nc6 [-u] -l -p $DESTPORT` will do
- *
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#define _GNU_SOURCE
-
-#include <arpa/inet.h>
-#include <asm/types.h>
-#include <error.h>
-#include <errno.h>
-#include <inttypes.h>
-#include <linux/errqueue.h>
-#include <linux/if_ether.h>
-#include <linux/net_tstamp.h>
-#include <netdb.h>
-#include <net/if.h>
-#include <netinet/in.h>
-#include <netinet/ip.h>
-#include <netinet/udp.h>
-#include <netinet/tcp.h>
-#include <netpacket/packet.h>
-#include <poll.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/select.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <time.h>
-#include <unistd.h>
-
-/* command line parameters */
-static int cfg_proto = SOCK_STREAM;
-static int cfg_ipproto = IPPROTO_TCP;
-static int cfg_num_pkts = 4;
-static int do_ipv4 = 1;
-static int do_ipv6 = 1;
-static int cfg_payload_len = 10;
-static bool cfg_show_payload;
-static bool cfg_do_pktinfo;
-static bool cfg_loop_nodata;
-static uint16_t dest_port = 9000;
-
-static struct sockaddr_in daddr;
-static struct sockaddr_in6 daddr6;
-static struct timespec ts_prev;
-
-static void __print_timestamp(const char *name, struct timespec *cur,
- uint32_t key, int payload_len)
-{
- if (!(cur->tv_sec | cur->tv_nsec))
- return;
-
- fprintf(stderr, " %s: %lu s %lu us (seq=%u, len=%u)",
- name, cur->tv_sec, cur->tv_nsec / 1000,
- key, payload_len);
-
- if ((ts_prev.tv_sec | ts_prev.tv_nsec)) {
- int64_t cur_ms, prev_ms;
-
- cur_ms = (long) cur->tv_sec * 1000 * 1000;
- cur_ms += cur->tv_nsec / 1000;
-
- prev_ms = (long) ts_prev.tv_sec * 1000 * 1000;
- prev_ms += ts_prev.tv_nsec / 1000;
-
- fprintf(stderr, " (%+" PRId64 " us)", cur_ms - prev_ms);
- }
-
- ts_prev = *cur;
- fprintf(stderr, "\n");
-}
-
-static void print_timestamp_usr(void)
-{
- struct timespec ts;
- struct timeval tv; /* avoid dependency on -lrt */
-
- gettimeofday(&tv, NULL);
- ts.tv_sec = tv.tv_sec;
- ts.tv_nsec = tv.tv_usec * 1000;
-
- __print_timestamp(" USR", &ts, 0, 0);
-}
-
-static void print_timestamp(struct scm_timestamping *tss, int tstype,
- int tskey, int payload_len)
-{
- const char *tsname;
-
- switch (tstype) {
- case SCM_TSTAMP_SCHED:
- tsname = " ENQ";
- break;
- case SCM_TSTAMP_SND:
- tsname = " SND";
- break;
- case SCM_TSTAMP_ACK:
- tsname = " ACK";
- break;
- default:
- error(1, 0, "unknown timestamp type: %u",
- tstype);
- }
- __print_timestamp(tsname, &tss->ts[0], tskey, payload_len);
-}
-
-/* TODO: convert to check_and_print payload once API is stable */
-static void print_payload(char *data, int len)
-{
- int i;
-
- if (!len)
- return;
-
- if (len > 70)
- len = 70;
-
- fprintf(stderr, "payload: ");
- for (i = 0; i < len; i++)
- fprintf(stderr, "%02hhx ", data[i]);
- fprintf(stderr, "\n");
-}
-
-static void print_pktinfo(int family, int ifindex, void *saddr, void *daddr)
-{
- char sa[INET6_ADDRSTRLEN], da[INET6_ADDRSTRLEN];
-
- fprintf(stderr, " pktinfo: ifindex=%u src=%s dst=%s\n",
- ifindex,
- saddr ? inet_ntop(family, saddr, sa, sizeof(sa)) : "unknown",
- daddr ? inet_ntop(family, daddr, da, sizeof(da)) : "unknown");
-}
-
-static void __poll(int fd)
-{
- struct pollfd pollfd;
- int ret;
-
- memset(&pollfd, 0, sizeof(pollfd));
- pollfd.fd = fd;
- ret = poll(&pollfd, 1, 100);
- if (ret != 1)
- error(1, errno, "poll");
-}
-
-static void __recv_errmsg_cmsg(struct msghdr *msg, int payload_len)
-{
- struct sock_extended_err *serr = NULL;
- struct scm_timestamping *tss = NULL;
- struct cmsghdr *cm;
- int batch = 0;
-
- for (cm = CMSG_FIRSTHDR(msg);
- cm && cm->cmsg_len;
- cm = CMSG_NXTHDR(msg, cm)) {
- if (cm->cmsg_level == SOL_SOCKET &&
- cm->cmsg_type == SCM_TIMESTAMPING) {
- tss = (void *) CMSG_DATA(cm);
- } else if ((cm->cmsg_level == SOL_IP &&
- cm->cmsg_type == IP_RECVERR) ||
- (cm->cmsg_level == SOL_IPV6 &&
- cm->cmsg_type == IPV6_RECVERR)) {
- serr = (void *) CMSG_DATA(cm);
- if (serr->ee_errno != ENOMSG ||
- serr->ee_origin != SO_EE_ORIGIN_TIMESTAMPING) {
- fprintf(stderr, "unknown ip error %d %d\n",
- serr->ee_errno,
- serr->ee_origin);
- serr = NULL;
- }
- } else if (cm->cmsg_level == SOL_IP &&
- cm->cmsg_type == IP_PKTINFO) {
- struct in_pktinfo *info = (void *) CMSG_DATA(cm);
- print_pktinfo(AF_INET, info->ipi_ifindex,
- &info->ipi_spec_dst, &info->ipi_addr);
- } else if (cm->cmsg_level == SOL_IPV6 &&
- cm->cmsg_type == IPV6_PKTINFO) {
- struct in6_pktinfo *info6 = (void *) CMSG_DATA(cm);
- print_pktinfo(AF_INET6, info6->ipi6_ifindex,
- NULL, &info6->ipi6_addr);
- } else
- fprintf(stderr, "unknown cmsg %d,%d\n",
- cm->cmsg_level, cm->cmsg_type);
-
- if (serr && tss) {
- print_timestamp(tss, serr->ee_info, serr->ee_data,
- payload_len);
- serr = NULL;
- tss = NULL;
- batch++;
- }
- }
-
- if (batch > 1)
- fprintf(stderr, "batched %d timestamps\n", batch);
-}
-
-static int recv_errmsg(int fd)
-{
- static char ctrl[1024 /* overprovision*/];
- static struct msghdr msg;
- struct iovec entry;
- static char *data;
- int ret = 0;
-
- data = malloc(cfg_payload_len);
- if (!data)
- error(1, 0, "malloc");
-
- memset(&msg, 0, sizeof(msg));
- memset(&entry, 0, sizeof(entry));
- memset(ctrl, 0, sizeof(ctrl));
-
- entry.iov_base = data;
- entry.iov_len = cfg_payload_len;
- msg.msg_iov = &entry;
- msg.msg_iovlen = 1;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_control = ctrl;
- msg.msg_controllen = sizeof(ctrl);
-
- ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
- if (ret == -1 && errno != EAGAIN)
- error(1, errno, "recvmsg");
-
- if (ret >= 0) {
- __recv_errmsg_cmsg(&msg, ret);
- if (cfg_show_payload)
- print_payload(data, cfg_payload_len);
- }
-
- free(data);
- return ret == -1;
-}
-
-static void do_test(int family, unsigned int opt)
-{
- char *buf;
- int fd, i, val = 1, total_len;
-
- if (family == AF_INET6 && cfg_proto != SOCK_STREAM) {
- /* due to lack of checksum generation code */
- fprintf(stderr, "test: skipping datagram over IPv6\n");
- return;
- }
-
- total_len = cfg_payload_len;
- if (cfg_proto == SOCK_RAW) {
- total_len += sizeof(struct udphdr);
- if (cfg_ipproto == IPPROTO_RAW)
- total_len += sizeof(struct iphdr);
- }
-
- buf = malloc(total_len);
- if (!buf)
- error(1, 0, "malloc");
-
- fd = socket(family, cfg_proto, cfg_ipproto);
- if (fd < 0)
- error(1, errno, "socket");
-
- if (cfg_proto == SOCK_STREAM) {
- if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY,
- (char*) &val, sizeof(val)))
- error(1, 0, "setsockopt no nagle");
-
- if (family == PF_INET) {
- if (connect(fd, (void *) &daddr, sizeof(daddr)))
- error(1, errno, "connect ipv4");
- } else {
- if (connect(fd, (void *) &daddr6, sizeof(daddr6)))
- error(1, errno, "connect ipv6");
- }
- }
-
- if (cfg_do_pktinfo) {
- if (family == AF_INET6) {
- if (setsockopt(fd, SOL_IPV6, IPV6_RECVPKTINFO,
- &val, sizeof(val)))
- error(1, errno, "setsockopt pktinfo ipv6");
- } else {
- if (setsockopt(fd, SOL_IP, IP_PKTINFO,
- &val, sizeof(val)))
- error(1, errno, "setsockopt pktinfo ipv4");
- }
- }
-
- opt |= SOF_TIMESTAMPING_SOFTWARE |
- SOF_TIMESTAMPING_OPT_CMSG |
- SOF_TIMESTAMPING_OPT_ID;
- if (cfg_loop_nodata)
- opt |= SOF_TIMESTAMPING_OPT_TSONLY;
-
- if (setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING,
- (char *) &opt, sizeof(opt)))
- error(1, 0, "setsockopt timestamping");
-
- for (i = 0; i < cfg_num_pkts; i++) {
- memset(&ts_prev, 0, sizeof(ts_prev));
- memset(buf, 'a' + i, total_len);
-
- if (cfg_proto == SOCK_RAW) {
- struct udphdr *udph;
- int off = 0;
-
- if (cfg_ipproto == IPPROTO_RAW) {
- struct iphdr *iph = (void *) buf;
-
- memset(iph, 0, sizeof(*iph));
- iph->ihl = 5;
- iph->version = 4;
- iph->ttl = 2;
- iph->daddr = daddr.sin_addr.s_addr;
- iph->protocol = IPPROTO_UDP;
- /* kernel writes saddr, csum, len */
-
- off = sizeof(*iph);
- }
-
- udph = (void *) buf + off;
- udph->source = ntohs(9000); /* random spoof */
- udph->dest = ntohs(dest_port);
- udph->len = ntohs(sizeof(*udph) + cfg_payload_len);
- udph->check = 0; /* not allowed for IPv6 */
- }
-
- print_timestamp_usr();
- if (cfg_proto != SOCK_STREAM) {
- if (family == PF_INET)
- val = sendto(fd, buf, total_len, 0, (void *) &daddr, sizeof(daddr));
- else
- val = sendto(fd, buf, total_len, 0, (void *) &daddr6, sizeof(daddr6));
- } else {
- val = send(fd, buf, cfg_payload_len, 0);
- }
- if (val != total_len)
- error(1, errno, "send");
-
- /* wait for all errors to be queued, else ACKs arrive OOO */
- usleep(50 * 1000);
-
- __poll(fd);
-
- while (!recv_errmsg(fd)) {}
- }
-
- if (close(fd))
- error(1, errno, "close");
-
- free(buf);
- usleep(400 * 1000);
-}
-
-static void __attribute__((noreturn)) usage(const char *filepath)
-{
- fprintf(stderr, "\nUsage: %s [options] hostname\n"
- "\nwhere options are:\n"
- " -4: only IPv4\n"
- " -6: only IPv6\n"
- " -h: show this message\n"
- " -I: request PKTINFO\n"
- " -l N: send N bytes at a time\n"
- " -n: set no-payload option\n"
- " -r: use raw\n"
- " -R: use raw (IP_HDRINCL)\n"
- " -p N: connect to port N\n"
- " -u: use udp\n"
- " -x: show payload (up to 70 bytes)\n",
- filepath);
- exit(1);
-}
-
-static void parse_opt(int argc, char **argv)
-{
- int proto_count = 0;
- char c;
-
- while ((c = getopt(argc, argv, "46hIl:np:rRux")) != -1) {
- switch (c) {
- case '4':
- do_ipv6 = 0;
- break;
- case '6':
- do_ipv4 = 0;
- break;
- case 'I':
- cfg_do_pktinfo = true;
- break;
- case 'n':
- cfg_loop_nodata = true;
- break;
- case 'r':
- proto_count++;
- cfg_proto = SOCK_RAW;
- cfg_ipproto = IPPROTO_UDP;
- break;
- case 'R':
- proto_count++;
- cfg_proto = SOCK_RAW;
- cfg_ipproto = IPPROTO_RAW;
- break;
- case 'u':
- proto_count++;
- cfg_proto = SOCK_DGRAM;
- cfg_ipproto = IPPROTO_UDP;
- break;
- case 'l':
- cfg_payload_len = strtoul(optarg, NULL, 10);
- break;
- case 'p':
- dest_port = strtoul(optarg, NULL, 10);
- break;
- case 'x':
- cfg_show_payload = true;
- break;
- case 'h':
- default:
- usage(argv[0]);
- }
- }
-
- if (!cfg_payload_len)
- error(1, 0, "payload may not be nonzero");
- if (cfg_proto != SOCK_STREAM && cfg_payload_len > 1472)
- error(1, 0, "udp packet might exceed expected MTU");
- if (!do_ipv4 && !do_ipv6)
- error(1, 0, "pass -4 or -6, not both");
- if (proto_count > 1)
- error(1, 0, "pass -r, -R or -u, not multiple");
-
- if (optind != argc - 1)
- error(1, 0, "missing required hostname argument");
-}
-
-static void resolve_hostname(const char *hostname)
-{
- struct addrinfo *addrs, *cur;
- int have_ipv4 = 0, have_ipv6 = 0;
-
- if (getaddrinfo(hostname, NULL, NULL, &addrs))
- error(1, errno, "getaddrinfo");
-
- cur = addrs;
- while (cur && !have_ipv4 && !have_ipv6) {
- if (!have_ipv4 && cur->ai_family == AF_INET) {
- memcpy(&daddr, cur->ai_addr, sizeof(daddr));
- daddr.sin_port = htons(dest_port);
- have_ipv4 = 1;
- }
- else if (!have_ipv6 && cur->ai_family == AF_INET6) {
- memcpy(&daddr6, cur->ai_addr, sizeof(daddr6));
- daddr6.sin6_port = htons(dest_port);
- have_ipv6 = 1;
- }
- cur = cur->ai_next;
- }
- if (addrs)
- freeaddrinfo(addrs);
-
- do_ipv4 &= have_ipv4;
- do_ipv6 &= have_ipv6;
-}
-
-static void do_main(int family)
-{
- fprintf(stderr, "family: %s\n",
- family == PF_INET ? "INET" : "INET6");
-
- fprintf(stderr, "test SND\n");
- do_test(family, SOF_TIMESTAMPING_TX_SOFTWARE);
-
- fprintf(stderr, "test ENQ\n");
- do_test(family, SOF_TIMESTAMPING_TX_SCHED);
-
- fprintf(stderr, "test ENQ + SND\n");
- do_test(family, SOF_TIMESTAMPING_TX_SCHED |
- SOF_TIMESTAMPING_TX_SOFTWARE);
-
- if (cfg_proto == SOCK_STREAM) {
- fprintf(stderr, "\ntest ACK\n");
- do_test(family, SOF_TIMESTAMPING_TX_ACK);
-
- fprintf(stderr, "\ntest SND + ACK\n");
- do_test(family, SOF_TIMESTAMPING_TX_SOFTWARE |
- SOF_TIMESTAMPING_TX_ACK);
-
- fprintf(stderr, "\ntest ENQ + SND + ACK\n");
- do_test(family, SOF_TIMESTAMPING_TX_SCHED |
- SOF_TIMESTAMPING_TX_SOFTWARE |
- SOF_TIMESTAMPING_TX_ACK);
- }
-}
-
-const char *sock_names[] = { NULL, "TCP", "UDP", "RAW" };
-
-int main(int argc, char **argv)
-{
- if (argc == 1)
- usage(argv[0]);
-
- parse_opt(argc, argv);
- resolve_hostname(argv[argc - 1]);
-
- fprintf(stderr, "protocol: %s\n", sock_names[cfg_proto]);
- fprintf(stderr, "payload: %u\n", cfg_payload_len);
- fprintf(stderr, "server port: %u\n", dest_port);
- fprintf(stderr, "\n");
-
- if (do_ipv4)
- do_main(PF_INET);
- if (do_ipv6)
- do_main(PF_INET6);
-
- return 0;
-}
diff --git a/Documentation/pcmcia/.gitignore b/Documentation/pcmcia/.gitignore
deleted file mode 100644
index 53d081336757..000000000000
--- a/Documentation/pcmcia/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-crc32hash
diff --git a/Documentation/pcmcia/Makefile b/Documentation/pcmcia/Makefile
deleted file mode 100644
index 47a8fa162683..000000000000
--- a/Documentation/pcmcia/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-# List of programs to build
-hostprogs-y := crc32hash
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
-
-HOSTCFLAGS_crc32hash.o += -I$(objtree)/usr/include
diff --git a/Documentation/pcmcia/crc32hash.c b/Documentation/pcmcia/crc32hash.c
deleted file mode 100644
index 44f8beea7260..000000000000
--- a/Documentation/pcmcia/crc32hash.c
+++ /dev/null
@@ -1,32 +0,0 @@
-/* crc32hash.c - derived from linux/lib/crc32.c, GNU GPL v2 */
-/* Usage example:
-$ ./crc32hash "Dual Speed"
-*/
-
-#include <string.h>
-#include <stdio.h>
-#include <ctype.h>
-#include <stdlib.h>
-
-static unsigned int crc32(unsigned char const *p, unsigned int len)
-{
- int i;
- unsigned int crc = 0;
- while (len--) {
- crc ^= *p++;
- for (i = 0; i < 8; i++)
- crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0);
- }
- return crc;
-}
-
-int main(int argc, char **argv) {
- unsigned int result;
- if (argc != 2) {
- printf("no string passed as argument\n");
- return -1;
- }
- result = crc32((unsigned char const *)argv[1], strlen(argv[1]));
- printf("0x%x\n", result);
- return 0;
-}
diff --git a/Documentation/pcmcia/devicetable.txt b/Documentation/pcmcia/devicetable.txt
index 199afd100cf2..5f3e00ab54c4 100644
--- a/Documentation/pcmcia/devicetable.txt
+++ b/Documentation/pcmcia/devicetable.txt
@@ -27,7 +27,7 @@ pcmcia:m0149cC1ABf06pfn00fn00pa725B842DpbF1EFEE84pc0877B627pd00000000
The hex value after "pa" is the hash of product ID string 1, after "pb" for
string 2 and so on.
-Alternatively, you can use crc32hash (see Documentation/pcmcia/crc32hash.c)
+Alternatively, you can use crc32hash (see tools/pcmcia/crc32hash.c)
to determine the crc32 hash. Simply pass the string you want to evaluate
as argument to this program, e.g.:
-$ ./crc32hash "Dual Speed"
+$ tools/pcmcia/crc32hash "Dual Speed"
diff --git a/Documentation/prctl/.gitignore b/Documentation/prctl/.gitignore
deleted file mode 100644
index 0b5c27447bf6..000000000000
--- a/Documentation/prctl/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-disable-tsc-ctxt-sw-stress-test
-disable-tsc-on-off-stress-test
-disable-tsc-test
diff --git a/Documentation/prctl/Makefile b/Documentation/prctl/Makefile
deleted file mode 100644
index 44de3080c7f2..000000000000
--- a/Documentation/prctl/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-ifndef CROSS_COMPILE
-# List of programs to build
-hostprogs-$(CONFIG_X86) := disable-tsc-ctxt-sw-stress-test disable-tsc-on-off-stress-test disable-tsc-test
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
-
-HOSTCFLAGS_disable-tsc-ctxt-sw-stress-test.o += -I$(objtree)/usr/include
-HOSTCFLAGS_disable-tsc-on-off-stress-test.o += -I$(objtree)/usr/include
-HOSTCFLAGS_disable-tsc-test.o += -I$(objtree)/usr/include
-endif
diff --git a/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c b/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c
deleted file mode 100644
index f7499d1c0415..000000000000
--- a/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...)
- *
- * Tests if the control register is updated correctly
- * at context switches
- *
- * Warning: this test will cause a very high load for a few seconds
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <signal.h>
-#include <inttypes.h>
-#include <wait.h>
-
-
-#include <sys/prctl.h>
-#include <linux/prctl.h>
-
-/* Get/set the process' ability to use the timestamp counter instruction */
-#ifndef PR_GET_TSC
-#define PR_GET_TSC 25
-#define PR_SET_TSC 26
-# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */
-# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */
-#endif
-
-static uint64_t rdtsc(void)
-{
-uint32_t lo, hi;
-/* We cannot use "=A", since this would use %rax on x86_64 */
-__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
-return (uint64_t)hi << 32 | lo;
-}
-
-static void sigsegv_expect(int sig)
-{
- /* */
-}
-
-static void segvtask(void)
-{
- if (prctl(PR_SET_TSC, PR_TSC_SIGSEGV) < 0)
- {
- perror("prctl");
- exit(0);
- }
- signal(SIGSEGV, sigsegv_expect);
- alarm(10);
- rdtsc();
- fprintf(stderr, "FATAL ERROR, rdtsc() succeeded while disabled\n");
- exit(0);
-}
-
-
-static void sigsegv_fail(int sig)
-{
- fprintf(stderr, "FATAL ERROR, rdtsc() failed while enabled\n");
- exit(0);
-}
-
-static void rdtsctask(void)
-{
- if (prctl(PR_SET_TSC, PR_TSC_ENABLE) < 0)
- {
- perror("prctl");
- exit(0);
- }
- signal(SIGSEGV, sigsegv_fail);
- alarm(10);
- for(;;) rdtsc();
-}
-
-
-int main(void)
-{
- int n_tasks = 100, i;
-
- fprintf(stderr, "[No further output means we're allright]\n");
-
- for (i=0; i<n_tasks; i++)
- if (fork() == 0)
- {
- if (i & 1)
- segvtask();
- else
- rdtsctask();
- }
-
- for (i=0; i<n_tasks; i++)
- wait(NULL);
-
- exit(0);
-}
-
diff --git a/Documentation/prctl/disable-tsc-on-off-stress-test.c b/Documentation/prctl/disable-tsc-on-off-stress-test.c
deleted file mode 100644
index a06f027e9d16..000000000000
--- a/Documentation/prctl/disable-tsc-on-off-stress-test.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...)
- *
- * Tests if the control register is updated correctly
- * when set with prctl()
- *
- * Warning: this test will cause a very high load for a few seconds
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <signal.h>
-#include <inttypes.h>
-#include <wait.h>
-
-
-#include <sys/prctl.h>
-#include <linux/prctl.h>
-
-/* Get/set the process' ability to use the timestamp counter instruction */
-#ifndef PR_GET_TSC
-#define PR_GET_TSC 25
-#define PR_SET_TSC 26
-# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */
-# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */
-#endif
-
-/* snippet from wikipedia :-) */
-
-static uint64_t rdtsc(void)
-{
-uint32_t lo, hi;
-/* We cannot use "=A", since this would use %rax on x86_64 */
-__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
-return (uint64_t)hi << 32 | lo;
-}
-
-int should_segv = 0;
-
-static void sigsegv_cb(int sig)
-{
- if (!should_segv)
- {
- fprintf(stderr, "FATAL ERROR, rdtsc() failed while enabled\n");
- exit(0);
- }
- if (prctl(PR_SET_TSC, PR_TSC_ENABLE) < 0)
- {
- perror("prctl");
- exit(0);
- }
- should_segv = 0;
-
- rdtsc();
-}
-
-static void task(void)
-{
- signal(SIGSEGV, sigsegv_cb);
- alarm(10);
- for(;;)
- {
- rdtsc();
- if (should_segv)
- {
- fprintf(stderr, "FATAL ERROR, rdtsc() succeeded while disabled\n");
- exit(0);
- }
- if (prctl(PR_SET_TSC, PR_TSC_SIGSEGV) < 0)
- {
- perror("prctl");
- exit(0);
- }
- should_segv = 1;
- }
-}
-
-
-int main(void)
-{
- int n_tasks = 100, i;
-
- fprintf(stderr, "[No further output means we're allright]\n");
-
- for (i=0; i<n_tasks; i++)
- if (fork() == 0)
- task();
-
- for (i=0; i<n_tasks; i++)
- wait(NULL);
-
- exit(0);
-}
-
diff --git a/Documentation/prctl/disable-tsc-test.c b/Documentation/prctl/disable-tsc-test.c
deleted file mode 100644
index 8d494f7bebdb..000000000000
--- a/Documentation/prctl/disable-tsc-test.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...)
- *
- * Basic test to test behaviour of PR_GET_TSC and PR_SET_TSC
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <signal.h>
-#include <inttypes.h>
-
-
-#include <sys/prctl.h>
-#include <linux/prctl.h>
-
-/* Get/set the process' ability to use the timestamp counter instruction */
-#ifndef PR_GET_TSC
-#define PR_GET_TSC 25
-#define PR_SET_TSC 26
-# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */
-# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */
-#endif
-
-const char *tsc_names[] =
-{
- [0] = "[not set]",
- [PR_TSC_ENABLE] = "PR_TSC_ENABLE",
- [PR_TSC_SIGSEGV] = "PR_TSC_SIGSEGV",
-};
-
-static uint64_t rdtsc(void)
-{
-uint32_t lo, hi;
-/* We cannot use "=A", since this would use %rax on x86_64 */
-__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
-return (uint64_t)hi << 32 | lo;
-}
-
-static void sigsegv_cb(int sig)
-{
- int tsc_val = 0;
-
- printf("[ SIG_SEGV ]\n");
- printf("prctl(PR_GET_TSC, &tsc_val); ");
- fflush(stdout);
-
- if ( prctl(PR_GET_TSC, &tsc_val) == -1)
- perror("prctl");
-
- printf("tsc_val == %s\n", tsc_names[tsc_val]);
- printf("prctl(PR_SET_TSC, PR_TSC_ENABLE)\n");
- fflush(stdout);
- if ( prctl(PR_SET_TSC, PR_TSC_ENABLE) == -1)
- perror("prctl");
-
- printf("rdtsc() == ");
-}
-
-int main(void)
-{
- int tsc_val = 0;
-
- signal(SIGSEGV, sigsegv_cb);
-
- printf("rdtsc() == %llu\n", (unsigned long long)rdtsc());
- printf("prctl(PR_GET_TSC, &tsc_val); ");
- fflush(stdout);
-
- if ( prctl(PR_GET_TSC, &tsc_val) == -1)
- perror("prctl");
-
- printf("tsc_val == %s\n", tsc_names[tsc_val]);
- printf("rdtsc() == %llu\n", (unsigned long long)rdtsc());
- printf("prctl(PR_SET_TSC, PR_TSC_ENABLE)\n");
- fflush(stdout);
-
- if ( prctl(PR_SET_TSC, PR_TSC_ENABLE) == -1)
- perror("prctl");
-
- printf("rdtsc() == %llu\n", (unsigned long long)rdtsc());
- printf("prctl(PR_SET_TSC, PR_TSC_SIGSEGV)\n");
- fflush(stdout);
-
- if ( prctl(PR_SET_TSC, PR_TSC_SIGSEGV) == -1)
- perror("prctl");
-
- printf("rdtsc() == ");
- fflush(stdout);
- printf("%llu\n", (unsigned long long)rdtsc());
- fflush(stdout);
-
- exit(EXIT_SUCCESS);
-}
-
diff --git a/Documentation/ptp/.gitignore b/Documentation/ptp/.gitignore
deleted file mode 100644
index f562e49d6917..000000000000
--- a/Documentation/ptp/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-testptp
diff --git a/Documentation/ptp/Makefile b/Documentation/ptp/Makefile
deleted file mode 100644
index 293d6c09a11f..000000000000
--- a/Documentation/ptp/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-# List of programs to build
-hostprogs-y := testptp
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
-
-HOSTCFLAGS_testptp.o += -I$(objtree)/usr/include
-HOSTLOADLIBES_testptp := -lrt
diff --git a/Documentation/ptp/testptp.c b/Documentation/ptp/testptp.c
deleted file mode 100644
index 5d2eae16f7ee..000000000000
--- a/Documentation/ptp/testptp.c
+++ /dev/null
@@ -1,523 +0,0 @@
-/*
- * PTP 1588 clock support - User space test program
- *
- * Copyright (C) 2010 OMICRON electronics GmbH
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#define _GNU_SOURCE
-#define __SANE_USERSPACE_TYPES__ /* For PPC64, to get LL64 types */
-#include <errno.h>
-#include <fcntl.h>
-#include <inttypes.h>
-#include <math.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/timex.h>
-#include <sys/types.h>
-#include <time.h>
-#include <unistd.h>
-
-#include <linux/ptp_clock.h>
-
-#define DEVICE "/dev/ptp0"
-
-#ifndef ADJ_SETOFFSET
-#define ADJ_SETOFFSET 0x0100
-#endif
-
-#ifndef CLOCK_INVALID
-#define CLOCK_INVALID -1
-#endif
-
-/* clock_adjtime is not available in GLIBC < 2.14 */
-#if !__GLIBC_PREREQ(2, 14)
-#include <sys/syscall.h>
-static int clock_adjtime(clockid_t id, struct timex *tx)
-{
- return syscall(__NR_clock_adjtime, id, tx);
-}
-#endif
-
-static clockid_t get_clockid(int fd)
-{
-#define CLOCKFD 3
-#define FD_TO_CLOCKID(fd) ((~(clockid_t) (fd) << 3) | CLOCKFD)
-
- return FD_TO_CLOCKID(fd);
-}
-
-static void handle_alarm(int s)
-{
- printf("received signal %d\n", s);
-}
-
-static int install_handler(int signum, void (*handler)(int))
-{
- struct sigaction action;
- sigset_t mask;
-
- /* Unblock the signal. */
- sigemptyset(&mask);
- sigaddset(&mask, signum);
- sigprocmask(SIG_UNBLOCK, &mask, NULL);
-
- /* Install the signal handler. */
- action.sa_handler = handler;
- action.sa_flags = 0;
- sigemptyset(&action.sa_mask);
- sigaction(signum, &action, NULL);
-
- return 0;
-}
-
-static long ppb_to_scaled_ppm(int ppb)
-{
- /*
- * The 'freq' field in the 'struct timex' is in parts per
- * million, but with a 16 bit binary fractional field.
- * Instead of calculating either one of
- *
- * scaled_ppm = (ppb / 1000) << 16 [1]
- * scaled_ppm = (ppb << 16) / 1000 [2]
- *
- * we simply use double precision math, in order to avoid the
- * truncation in [1] and the possible overflow in [2].
- */
- return (long) (ppb * 65.536);
-}
-
-static int64_t pctns(struct ptp_clock_time *t)
-{
- return t->sec * 1000000000LL + t->nsec;
-}
-
-static void usage(char *progname)
-{
- fprintf(stderr,
- "usage: %s [options]\n"
- " -a val request a one-shot alarm after 'val' seconds\n"
- " -A val request a periodic alarm every 'val' seconds\n"
- " -c query the ptp clock's capabilities\n"
- " -d name device to open\n"
- " -e val read 'val' external time stamp events\n"
- " -f val adjust the ptp clock frequency by 'val' ppb\n"
- " -g get the ptp clock time\n"
- " -h prints this message\n"
- " -i val index for event/trigger\n"
- " -k val measure the time offset between system and phc clock\n"
- " for 'val' times (Maximum 25)\n"
- " -l list the current pin configuration\n"
- " -L pin,val configure pin index 'pin' with function 'val'\n"
- " the channel index is taken from the '-i' option\n"
- " 'val' specifies the auxiliary function:\n"
- " 0 - none\n"
- " 1 - external time stamp\n"
- " 2 - periodic output\n"
- " -p val enable output with a period of 'val' nanoseconds\n"
- " -P val enable or disable (val=1|0) the system clock PPS\n"
- " -s set the ptp clock time from the system time\n"
- " -S set the system time from the ptp clock time\n"
- " -t val shift the ptp clock time by 'val' seconds\n"
- " -T val set the ptp clock time to 'val' seconds\n",
- progname);
-}
-
-int main(int argc, char *argv[])
-{
- struct ptp_clock_caps caps;
- struct ptp_extts_event event;
- struct ptp_extts_request extts_request;
- struct ptp_perout_request perout_request;
- struct ptp_pin_desc desc;
- struct timespec ts;
- struct timex tx;
-
- static timer_t timerid;
- struct itimerspec timeout;
- struct sigevent sigevent;
-
- struct ptp_clock_time *pct;
- struct ptp_sys_offset *sysoff;
-
-
- char *progname;
- unsigned int i;
- int c, cnt, fd;
-
- char *device = DEVICE;
- clockid_t clkid;
- int adjfreq = 0x7fffffff;
- int adjtime = 0;
- int capabilities = 0;
- int extts = 0;
- int gettime = 0;
- int index = 0;
- int list_pins = 0;
- int oneshot = 0;
- int pct_offset = 0;
- int n_samples = 0;
- int periodic = 0;
- int perout = -1;
- int pin_index = -1, pin_func;
- int pps = -1;
- int seconds = 0;
- int settime = 0;
-
- int64_t t1, t2, tp;
- int64_t interval, offset;
-
- progname = strrchr(argv[0], '/');
- progname = progname ? 1+progname : argv[0];
- while (EOF != (c = getopt(argc, argv, "a:A:cd:e:f:ghi:k:lL:p:P:sSt:T:v"))) {
- switch (c) {
- case 'a':
- oneshot = atoi(optarg);
- break;
- case 'A':
- periodic = atoi(optarg);
- break;
- case 'c':
- capabilities = 1;
- break;
- case 'd':
- device = optarg;
- break;
- case 'e':
- extts = atoi(optarg);
- break;
- case 'f':
- adjfreq = atoi(optarg);
- break;
- case 'g':
- gettime = 1;
- break;
- case 'i':
- index = atoi(optarg);
- break;
- case 'k':
- pct_offset = 1;
- n_samples = atoi(optarg);
- break;
- case 'l':
- list_pins = 1;
- break;
- case 'L':
- cnt = sscanf(optarg, "%d,%d", &pin_index, &pin_func);
- if (cnt != 2) {
- usage(progname);
- return -1;
- }
- break;
- case 'p':
- perout = atoi(optarg);
- break;
- case 'P':
- pps = atoi(optarg);
- break;
- case 's':
- settime = 1;
- break;
- case 'S':
- settime = 2;
- break;
- case 't':
- adjtime = atoi(optarg);
- break;
- case 'T':
- settime = 3;
- seconds = atoi(optarg);
- break;
- case 'h':
- usage(progname);
- return 0;
- case '?':
- default:
- usage(progname);
- return -1;
- }
- }
-
- fd = open(device, O_RDWR);
- if (fd < 0) {
- fprintf(stderr, "opening %s: %s\n", device, strerror(errno));
- return -1;
- }
-
- clkid = get_clockid(fd);
- if (CLOCK_INVALID == clkid) {
- fprintf(stderr, "failed to read clock id\n");
- return -1;
- }
-
- if (capabilities) {
- if (ioctl(fd, PTP_CLOCK_GETCAPS, &caps)) {
- perror("PTP_CLOCK_GETCAPS");
- } else {
- printf("capabilities:\n"
- " %d maximum frequency adjustment (ppb)\n"
- " %d programmable alarms\n"
- " %d external time stamp channels\n"
- " %d programmable periodic signals\n"
- " %d pulse per second\n"
- " %d programmable pins\n"
- " %d cross timestamping\n",
- caps.max_adj,
- caps.n_alarm,
- caps.n_ext_ts,
- caps.n_per_out,
- caps.pps,
- caps.n_pins,
- caps.cross_timestamping);
- }
- }
-
- if (0x7fffffff != adjfreq) {
- memset(&tx, 0, sizeof(tx));
- tx.modes = ADJ_FREQUENCY;
- tx.freq = ppb_to_scaled_ppm(adjfreq);
- if (clock_adjtime(clkid, &tx)) {
- perror("clock_adjtime");
- } else {
- puts("frequency adjustment okay");
- }
- }
-
- if (adjtime) {
- memset(&tx, 0, sizeof(tx));
- tx.modes = ADJ_SETOFFSET;
- tx.time.tv_sec = adjtime;
- tx.time.tv_usec = 0;
- if (clock_adjtime(clkid, &tx) < 0) {
- perror("clock_adjtime");
- } else {
- puts("time shift okay");
- }
- }
-
- if (gettime) {
- if (clock_gettime(clkid, &ts)) {
- perror("clock_gettime");
- } else {
- printf("clock time: %ld.%09ld or %s",
- ts.tv_sec, ts.tv_nsec, ctime(&ts.tv_sec));
- }
- }
-
- if (settime == 1) {
- clock_gettime(CLOCK_REALTIME, &ts);
- if (clock_settime(clkid, &ts)) {
- perror("clock_settime");
- } else {
- puts("set time okay");
- }
- }
-
- if (settime == 2) {
- clock_gettime(clkid, &ts);
- if (clock_settime(CLOCK_REALTIME, &ts)) {
- perror("clock_settime");
- } else {
- puts("set time okay");
- }
- }
-
- if (settime == 3) {
- ts.tv_sec = seconds;
- ts.tv_nsec = 0;
- if (clock_settime(clkid, &ts)) {
- perror("clock_settime");
- } else {
- puts("set time okay");
- }
- }
-
- if (extts) {
- memset(&extts_request, 0, sizeof(extts_request));
- extts_request.index = index;
- extts_request.flags = PTP_ENABLE_FEATURE;
- if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) {
- perror("PTP_EXTTS_REQUEST");
- extts = 0;
- } else {
- puts("external time stamp request okay");
- }
- for (; extts; extts--) {
- cnt = read(fd, &event, sizeof(event));
- if (cnt != sizeof(event)) {
- perror("read");
- break;
- }
- printf("event index %u at %lld.%09u\n", event.index,
- event.t.sec, event.t.nsec);
- fflush(stdout);
- }
- /* Disable the feature again. */
- extts_request.flags = 0;
- if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) {
- perror("PTP_EXTTS_REQUEST");
- }
- }
-
- if (list_pins) {
- int n_pins = 0;
- if (ioctl(fd, PTP_CLOCK_GETCAPS, &caps)) {
- perror("PTP_CLOCK_GETCAPS");
- } else {
- n_pins = caps.n_pins;
- }
- for (i = 0; i < n_pins; i++) {
- desc.index = i;
- if (ioctl(fd, PTP_PIN_GETFUNC, &desc)) {
- perror("PTP_PIN_GETFUNC");
- break;
- }
- printf("name %s index %u func %u chan %u\n",
- desc.name, desc.index, desc.func, desc.chan);
- }
- }
-
- if (oneshot) {
- install_handler(SIGALRM, handle_alarm);
- /* Create a timer. */
- sigevent.sigev_notify = SIGEV_SIGNAL;
- sigevent.sigev_signo = SIGALRM;
- if (timer_create(clkid, &sigevent, &timerid)) {
- perror("timer_create");
- return -1;
- }
- /* Start the timer. */
- memset(&timeout, 0, sizeof(timeout));
- timeout.it_value.tv_sec = oneshot;
- if (timer_settime(timerid, 0, &timeout, NULL)) {
- perror("timer_settime");
- return -1;
- }
- pause();
- timer_delete(timerid);
- }
-
- if (periodic) {
- install_handler(SIGALRM, handle_alarm);
- /* Create a timer. */
- sigevent.sigev_notify = SIGEV_SIGNAL;
- sigevent.sigev_signo = SIGALRM;
- if (timer_create(clkid, &sigevent, &timerid)) {
- perror("timer_create");
- return -1;
- }
- /* Start the timer. */
- memset(&timeout, 0, sizeof(timeout));
- timeout.it_interval.tv_sec = periodic;
- timeout.it_value.tv_sec = periodic;
- if (timer_settime(timerid, 0, &timeout, NULL)) {
- perror("timer_settime");
- return -1;
- }
- while (1) {
- pause();
- }
- timer_delete(timerid);
- }
-
- if (perout >= 0) {
- if (clock_gettime(clkid, &ts)) {
- perror("clock_gettime");
- return -1;
- }
- memset(&perout_request, 0, sizeof(perout_request));
- perout_request.index = index;
- perout_request.start.sec = ts.tv_sec + 2;
- perout_request.start.nsec = 0;
- perout_request.period.sec = 0;
- perout_request.period.nsec = perout;
- if (ioctl(fd, PTP_PEROUT_REQUEST, &perout_request)) {
- perror("PTP_PEROUT_REQUEST");
- } else {
- puts("periodic output request okay");
- }
- }
-
- if (pin_index >= 0) {
- memset(&desc, 0, sizeof(desc));
- desc.index = pin_index;
- desc.func = pin_func;
- desc.chan = index;
- if (ioctl(fd, PTP_PIN_SETFUNC, &desc)) {
- perror("PTP_PIN_SETFUNC");
- } else {
- puts("set pin function okay");
- }
- }
-
- if (pps != -1) {
- int enable = pps ? 1 : 0;
- if (ioctl(fd, PTP_ENABLE_PPS, enable)) {
- perror("PTP_ENABLE_PPS");
- } else {
- puts("pps for system time request okay");
- }
- }
-
- if (pct_offset) {
- if (n_samples <= 0 || n_samples > 25) {
- puts("n_samples should be between 1 and 25");
- usage(progname);
- return -1;
- }
-
- sysoff = calloc(1, sizeof(*sysoff));
- if (!sysoff) {
- perror("calloc");
- return -1;
- }
- sysoff->n_samples = n_samples;
-
- if (ioctl(fd, PTP_SYS_OFFSET, sysoff))
- perror("PTP_SYS_OFFSET");
- else
- puts("system and phc clock time offset request okay");
-
- pct = &sysoff->ts[0];
- for (i = 0; i < sysoff->n_samples; i++) {
- t1 = pctns(pct+2*i);
- tp = pctns(pct+2*i+1);
- t2 = pctns(pct+2*i+2);
- interval = t2 - t1;
- offset = (t2 + t1) / 2 - tp;
-
- printf("system time: %lld.%u\n",
- (pct+2*i)->sec, (pct+2*i)->nsec);
- printf("phc time: %lld.%u\n",
- (pct+2*i+1)->sec, (pct+2*i+1)->nsec);
- printf("system time: %lld.%u\n",
- (pct+2*i+2)->sec, (pct+2*i+2)->nsec);
- printf("system/phc clock time offset is %" PRId64 " ns\n"
- "system clock time delay is %" PRId64 " ns\n",
- offset, interval);
- }
-
- free(sysoff);
- }
-
- close(fd);
- return 0;
-}
diff --git a/Documentation/ptp/testptp.mk b/Documentation/ptp/testptp.mk
deleted file mode 100644
index 4ef2d9755421..000000000000
--- a/Documentation/ptp/testptp.mk
+++ /dev/null
@@ -1,33 +0,0 @@
-# PTP 1588 clock support - User space test program
-#
-# Copyright (C) 2010 OMICRON electronics GmbH
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-CC = $(CROSS_COMPILE)gcc
-INC = -I$(KBUILD_OUTPUT)/usr/include
-CFLAGS = -Wall $(INC)
-LDLIBS = -lrt
-PROGS = testptp
-
-all: $(PROGS)
-
-testptp: testptp.o
-
-clean:
- rm -f testptp.o
-
-distclean: clean
- rm -f $(PROGS)
diff --git a/Documentation/spi/00-INDEX b/Documentation/spi/00-INDEX
index 4644bf0d9832..8e4bb17d70eb 100644
--- a/Documentation/spi/00-INDEX
+++ b/Documentation/spi/00-INDEX
@@ -1,7 +1,5 @@
00-INDEX
- this file.
-Makefile
- - Makefile for the example sourcefiles.
butterfly
- AVR Butterfly SPI driver overview and pin configuration.
ep93xx_spi
diff --git a/Documentation/timers/.gitignore b/Documentation/timers/.gitignore
deleted file mode 100644
index c5c45d7ec0df..000000000000
--- a/Documentation/timers/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-hpet_example
diff --git a/Documentation/timers/00-INDEX b/Documentation/timers/00-INDEX
index ee212a27772f..3be05fe0f1f9 100644
--- a/Documentation/timers/00-INDEX
+++ b/Documentation/timers/00-INDEX
@@ -4,12 +4,8 @@ highres.txt
- High resolution timers and dynamic ticks design notes
hpet.txt
- High Precision Event Timer Driver for Linux
-hpet_example.c
- - sample hpet timer test program
hrtimers.txt
- subsystem for high-resolution kernel timers
-Makefile
- - Build and link hpet_example
NO_HZ.txt
- Summary of the different methods for the scheduler clock-interrupts management.
timekeeping.txt
diff --git a/Documentation/timers/Makefile b/Documentation/timers/Makefile
deleted file mode 100644
index 6c09ee6ca721..000000000000
--- a/Documentation/timers/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# List of programs to build
-hostprogs-$(CONFIG_X86) := hpet_example
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
diff --git a/Documentation/timers/hpet.txt b/Documentation/timers/hpet.txt
index a484d2c109d7..895345ec513b 100644
--- a/Documentation/timers/hpet.txt
+++ b/Documentation/timers/hpet.txt
@@ -25,4 +25,4 @@ arch/x86/kernel/hpet.c.
The driver provides a userspace API which resembles the API found in the
RTC driver framework. An example user space program is provided in
-file:Documentation/timers/hpet_example.c
+file:samples/timers/hpet_example.c
diff --git a/Documentation/timers/hpet_example.c b/Documentation/timers/hpet_example.c
deleted file mode 100644
index 3ab4993d85e0..000000000000
--- a/Documentation/timers/hpet_example.c
+++ /dev/null
@@ -1,294 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
-#include <memory.h>
-#include <malloc.h>
-#include <time.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <signal.h>
-#include <errno.h>
-#include <sys/time.h>
-#include <linux/hpet.h>
-
-
-extern void hpet_open_close(int, const char **);
-extern void hpet_info(int, const char **);
-extern void hpet_poll(int, const char **);
-extern void hpet_fasync(int, const char **);
-extern void hpet_read(int, const char **);
-
-#include <sys/poll.h>
-#include <sys/ioctl.h>
-
-struct hpet_command {
- char *command;
- void (*func)(int argc, const char ** argv);
-} hpet_command[] = {
- {
- "open-close",
- hpet_open_close
- },
- {
- "info",
- hpet_info
- },
- {
- "poll",
- hpet_poll
- },
- {
- "fasync",
- hpet_fasync
- },
-};
-
-int
-main(int argc, const char ** argv)
-{
- unsigned int i;
-
- argc--;
- argv++;
-
- if (!argc) {
- fprintf(stderr, "-hpet: requires command\n");
- return -1;
- }
-
-
- for (i = 0; i < (sizeof (hpet_command) / sizeof (hpet_command[0])); i++)
- if (!strcmp(argv[0], hpet_command[i].command)) {
- argc--;
- argv++;
- fprintf(stderr, "-hpet: executing %s\n",
- hpet_command[i].command);
- hpet_command[i].func(argc, argv);
- return 0;
- }
-
- fprintf(stderr, "do_hpet: command %s not implemented\n", argv[0]);
-
- return -1;
-}
-
-void
-hpet_open_close(int argc, const char **argv)
-{
- int fd;
-
- if (argc != 1) {
- fprintf(stderr, "hpet_open_close: device-name\n");
- return;
- }
-
- fd = open(argv[0], O_RDONLY);
- if (fd < 0)
- fprintf(stderr, "hpet_open_close: open failed\n");
- else
- close(fd);
-
- return;
-}
-
-void
-hpet_info(int argc, const char **argv)
-{
- struct hpet_info info;
- int fd;
-
- if (argc != 1) {
- fprintf(stderr, "hpet_info: device-name\n");
- return;
- }
-
- fd = open(argv[0], O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "hpet_info: open of %s failed\n", argv[0]);
- return;
- }
-
- if (ioctl(fd, HPET_INFO, &info) < 0) {
- fprintf(stderr, "hpet_info: failed to get info\n");
- goto out;
- }
-
- fprintf(stderr, "hpet_info: hi_irqfreq 0x%lx hi_flags 0x%lx ",
- info.hi_ireqfreq, info.hi_flags);
- fprintf(stderr, "hi_hpet %d hi_timer %d\n",
- info.hi_hpet, info.hi_timer);
-
-out:
- close(fd);
- return;
-}
-
-void
-hpet_poll(int argc, const char **argv)
-{
- unsigned long freq;
- int iterations, i, fd;
- struct pollfd pfd;
- struct hpet_info info;
- struct timeval stv, etv;
- struct timezone tz;
- long usec;
-
- if (argc != 3) {
- fprintf(stderr, "hpet_poll: device-name freq iterations\n");
- return;
- }
-
- freq = atoi(argv[1]);
- iterations = atoi(argv[2]);
-
- fd = open(argv[0], O_RDONLY);
-
- if (fd < 0) {
- fprintf(stderr, "hpet_poll: open of %s failed\n", argv[0]);
- return;
- }
-
- if (ioctl(fd, HPET_IRQFREQ, freq) < 0) {
- fprintf(stderr, "hpet_poll: HPET_IRQFREQ failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_INFO, &info) < 0) {
- fprintf(stderr, "hpet_poll: failed to get info\n");
- goto out;
- }
-
- fprintf(stderr, "hpet_poll: info.hi_flags 0x%lx\n", info.hi_flags);
-
- if (info.hi_flags && (ioctl(fd, HPET_EPI, 0) < 0)) {
- fprintf(stderr, "hpet_poll: HPET_EPI failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_IE_ON, 0) < 0) {
- fprintf(stderr, "hpet_poll, HPET_IE_ON failed\n");
- goto out;
- }
-
- pfd.fd = fd;
- pfd.events = POLLIN;
-
- for (i = 0; i < iterations; i++) {
- pfd.revents = 0;
- gettimeofday(&stv, &tz);
- if (poll(&pfd, 1, -1) < 0)
- fprintf(stderr, "hpet_poll: poll failed\n");
- else {
- long data;
-
- gettimeofday(&etv, &tz);
- usec = stv.tv_sec * 1000000 + stv.tv_usec;
- usec = (etv.tv_sec * 1000000 + etv.tv_usec) - usec;
-
- fprintf(stderr,
- "hpet_poll: expired time = 0x%lx\n", usec);
-
- fprintf(stderr, "hpet_poll: revents = 0x%x\n",
- pfd.revents);
-
- if (read(fd, &data, sizeof(data)) != sizeof(data)) {
- fprintf(stderr, "hpet_poll: read failed\n");
- }
- else
- fprintf(stderr, "hpet_poll: data 0x%lx\n",
- data);
- }
- }
-
-out:
- close(fd);
- return;
-}
-
-static int hpet_sigio_count;
-
-static void
-hpet_sigio(int val)
-{
- fprintf(stderr, "hpet_sigio: called\n");
- hpet_sigio_count++;
-}
-
-void
-hpet_fasync(int argc, const char **argv)
-{
- unsigned long freq;
- int iterations, i, fd, value;
- sig_t oldsig;
- struct hpet_info info;
-
- hpet_sigio_count = 0;
- fd = -1;
-
- if ((oldsig = signal(SIGIO, hpet_sigio)) == SIG_ERR) {
- fprintf(stderr, "hpet_fasync: failed to set signal handler\n");
- return;
- }
-
- if (argc != 3) {
- fprintf(stderr, "hpet_fasync: device-name freq iterations\n");
- goto out;
- }
-
- fd = open(argv[0], O_RDONLY);
-
- if (fd < 0) {
- fprintf(stderr, "hpet_fasync: failed to open %s\n", argv[0]);
- return;
- }
-
-
- if ((fcntl(fd, F_SETOWN, getpid()) == 1) ||
- ((value = fcntl(fd, F_GETFL)) == 1) ||
- (fcntl(fd, F_SETFL, value | O_ASYNC) == 1)) {
- fprintf(stderr, "hpet_fasync: fcntl failed\n");
- goto out;
- }
-
- freq = atoi(argv[1]);
- iterations = atoi(argv[2]);
-
- if (ioctl(fd, HPET_IRQFREQ, freq) < 0) {
- fprintf(stderr, "hpet_fasync: HPET_IRQFREQ failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_INFO, &info) < 0) {
- fprintf(stderr, "hpet_fasync: failed to get info\n");
- goto out;
- }
-
- fprintf(stderr, "hpet_fasync: info.hi_flags 0x%lx\n", info.hi_flags);
-
- if (info.hi_flags && (ioctl(fd, HPET_EPI, 0) < 0)) {
- fprintf(stderr, "hpet_fasync: HPET_EPI failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_IE_ON, 0) < 0) {
- fprintf(stderr, "hpet_fasync, HPET_IE_ON failed\n");
- goto out;
- }
-
- for (i = 0; i < iterations; i++) {
- (void) pause();
- fprintf(stderr, "hpet_fasync: count = %d\n", hpet_sigio_count);
- }
-
-out:
- signal(SIGIO, oldsig);
-
- if (fd >= 0)
- close(fd);
-
- return;
-}
diff --git a/Documentation/vDSO/.gitignore b/Documentation/vDSO/.gitignore
deleted file mode 100644
index 133bf9ee986c..000000000000
--- a/Documentation/vDSO/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-vdso_test
-vdso_standalone_test_x86
diff --git a/Documentation/vDSO/Makefile b/Documentation/vDSO/Makefile
deleted file mode 100644
index b12e98770e1f..000000000000
--- a/Documentation/vDSO/Makefile
+++ /dev/null
@@ -1,17 +0,0 @@
-ifndef CROSS_COMPILE
-# vdso_test won't build for glibc < 2.16, so disable it
-# hostprogs-y := vdso_test
-hostprogs-$(CONFIG_X86) := vdso_standalone_test_x86
-vdso_standalone_test_x86-objs := vdso_standalone_test_x86.o parse_vdso.o
-vdso_test-objs := parse_vdso.o vdso_test.o
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
-
-HOSTCFLAGS := -I$(objtree)/usr/include -std=gnu99
-HOSTCFLAGS_vdso_standalone_test_x86.o := -fno-asynchronous-unwind-tables -fno-stack-protector
-HOSTLOADLIBES_vdso_standalone_test_x86 := -nostdlib
-ifeq ($(CONFIG_X86_32),y)
-HOSTLOADLIBES_vdso_standalone_test_x86 += -lgcc_s
-endif
-endif
diff --git a/Documentation/vDSO/parse_vdso.c b/Documentation/vDSO/parse_vdso.c
deleted file mode 100644
index 1dbb4b87268f..000000000000
--- a/Documentation/vDSO/parse_vdso.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * parse_vdso.c: Linux reference vDSO parser
- * Written by Andrew Lutomirski, 2011-2014.
- *
- * This code is meant to be linked in to various programs that run on Linux.
- * As such, it is available with as few restrictions as possible. This file
- * is licensed under the Creative Commons Zero License, version 1.0,
- * available at http://creativecommons.org/publicdomain/zero/1.0/legalcode
- *
- * The vDSO is a regular ELF DSO that the kernel maps into user space when
- * it starts a program. It works equally well in statically and dynamically
- * linked binaries.
- *
- * This code is tested on x86. In principle it should work on any
- * architecture that has a vDSO.
- */
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <string.h>
-#include <limits.h>
-#include <elf.h>
-
-/*
- * To use this vDSO parser, first call one of the vdso_init_* functions.
- * If you've already parsed auxv, then pass the value of AT_SYSINFO_EHDR
- * to vdso_init_from_sysinfo_ehdr. Otherwise pass auxv to vdso_init_from_auxv.
- * Then call vdso_sym for each symbol you want. For example, to look up
- * gettimeofday on x86_64, use:
- *
- * <some pointer> = vdso_sym("LINUX_2.6", "gettimeofday");
- * or
- * <some pointer> = vdso_sym("LINUX_2.6", "__vdso_gettimeofday");
- *
- * vdso_sym will return 0 if the symbol doesn't exist or if the init function
- * failed or was not called. vdso_sym is a little slow, so its return value
- * should be cached.
- *
- * vdso_sym is threadsafe; the init functions are not.
- *
- * These are the prototypes:
- */
-extern void vdso_init_from_auxv(void *auxv);
-extern void vdso_init_from_sysinfo_ehdr(uintptr_t base);
-extern void *vdso_sym(const char *version, const char *name);
-
-
-/* And here's the code. */
-#ifndef ELF_BITS
-# if ULONG_MAX > 0xffffffffUL
-# define ELF_BITS 64
-# else
-# define ELF_BITS 32
-# endif
-#endif
-
-#define ELF_BITS_XFORM2(bits, x) Elf##bits##_##x
-#define ELF_BITS_XFORM(bits, x) ELF_BITS_XFORM2(bits, x)
-#define ELF(x) ELF_BITS_XFORM(ELF_BITS, x)
-
-static struct vdso_info
-{
- bool valid;
-
- /* Load information */
- uintptr_t load_addr;
- uintptr_t load_offset; /* load_addr - recorded vaddr */
-
- /* Symbol table */
- ELF(Sym) *symtab;
- const char *symstrings;
- ELF(Word) *bucket, *chain;
- ELF(Word) nbucket, nchain;
-
- /* Version table */
- ELF(Versym) *versym;
- ELF(Verdef) *verdef;
-} vdso_info;
-
-/* Straight from the ELF specification. */
-static unsigned long elf_hash(const unsigned char *name)
-{
- unsigned long h = 0, g;
- while (*name)
- {
- h = (h << 4) + *name++;
- if (g = h & 0xf0000000)
- h ^= g >> 24;
- h &= ~g;
- }
- return h;
-}
-
-void vdso_init_from_sysinfo_ehdr(uintptr_t base)
-{
- size_t i;
- bool found_vaddr = false;
-
- vdso_info.valid = false;
-
- vdso_info.load_addr = base;
-
- ELF(Ehdr) *hdr = (ELF(Ehdr)*)base;
- if (hdr->e_ident[EI_CLASS] !=
- (ELF_BITS == 32 ? ELFCLASS32 : ELFCLASS64)) {
- return; /* Wrong ELF class -- check ELF_BITS */
- }
-
- ELF(Phdr) *pt = (ELF(Phdr)*)(vdso_info.load_addr + hdr->e_phoff);
- ELF(Dyn) *dyn = 0;
-
- /*
- * We need two things from the segment table: the load offset
- * and the dynamic table.
- */
- for (i = 0; i < hdr->e_phnum; i++)
- {
- if (pt[i].p_type == PT_LOAD && !found_vaddr) {
- found_vaddr = true;
- vdso_info.load_offset = base
- + (uintptr_t)pt[i].p_offset
- - (uintptr_t)pt[i].p_vaddr;
- } else if (pt[i].p_type == PT_DYNAMIC) {
- dyn = (ELF(Dyn)*)(base + pt[i].p_offset);
- }
- }
-
- if (!found_vaddr || !dyn)
- return; /* Failed */
-
- /*
- * Fish out the useful bits of the dynamic table.
- */
- ELF(Word) *hash = 0;
- vdso_info.symstrings = 0;
- vdso_info.symtab = 0;
- vdso_info.versym = 0;
- vdso_info.verdef = 0;
- for (i = 0; dyn[i].d_tag != DT_NULL; i++) {
- switch (dyn[i].d_tag) {
- case DT_STRTAB:
- vdso_info.symstrings = (const char *)
- ((uintptr_t)dyn[i].d_un.d_ptr
- + vdso_info.load_offset);
- break;
- case DT_SYMTAB:
- vdso_info.symtab = (ELF(Sym) *)
- ((uintptr_t)dyn[i].d_un.d_ptr
- + vdso_info.load_offset);
- break;
- case DT_HASH:
- hash = (ELF(Word) *)
- ((uintptr_t)dyn[i].d_un.d_ptr
- + vdso_info.load_offset);
- break;
- case DT_VERSYM:
- vdso_info.versym = (ELF(Versym) *)
- ((uintptr_t)dyn[i].d_un.d_ptr
- + vdso_info.load_offset);
- break;
- case DT_VERDEF:
- vdso_info.verdef = (ELF(Verdef) *)
- ((uintptr_t)dyn[i].d_un.d_ptr
- + vdso_info.load_offset);
- break;
- }
- }
- if (!vdso_info.symstrings || !vdso_info.symtab || !hash)
- return; /* Failed */
-
- if (!vdso_info.verdef)
- vdso_info.versym = 0;
-
- /* Parse the hash table header. */
- vdso_info.nbucket = hash[0];
- vdso_info.nchain = hash[1];
- vdso_info.bucket = &hash[2];
- vdso_info.chain = &hash[vdso_info.nbucket + 2];
-
- /* That's all we need. */
- vdso_info.valid = true;
-}
-
-static bool vdso_match_version(ELF(Versym) ver,
- const char *name, ELF(Word) hash)
-{
- /*
- * This is a helper function to check if the version indexed by
- * ver matches name (which hashes to hash).
- *
- * The version definition table is a mess, and I don't know how
- * to do this in better than linear time without allocating memory
- * to build an index. I also don't know why the table has
- * variable size entries in the first place.
- *
- * For added fun, I can't find a comprehensible specification of how
- * to parse all the weird flags in the table.
- *
- * So I just parse the whole table every time.
- */
-
- /* First step: find the version definition */
- ver &= 0x7fff; /* Apparently bit 15 means "hidden" */
- ELF(Verdef) *def = vdso_info.verdef;
- while(true) {
- if ((def->vd_flags & VER_FLG_BASE) == 0
- && (def->vd_ndx & 0x7fff) == ver)
- break;
-
- if (def->vd_next == 0)
- return false; /* No definition. */
-
- def = (ELF(Verdef) *)((char *)def + def->vd_next);
- }
-
- /* Now figure out whether it matches. */
- ELF(Verdaux) *aux = (ELF(Verdaux)*)((char *)def + def->vd_aux);
- return def->vd_hash == hash
- && !strcmp(name, vdso_info.symstrings + aux->vda_name);
-}
-
-void *vdso_sym(const char *version, const char *name)
-{
- unsigned long ver_hash;
- if (!vdso_info.valid)
- return 0;
-
- ver_hash = elf_hash(version);
- ELF(Word) chain = vdso_info.bucket[elf_hash(name) % vdso_info.nbucket];
-
- for (; chain != STN_UNDEF; chain = vdso_info.chain[chain]) {
- ELF(Sym) *sym = &vdso_info.symtab[chain];
-
- /* Check for a defined global or weak function w/ right name. */
- if (ELF64_ST_TYPE(sym->st_info) != STT_FUNC)
- continue;
- if (ELF64_ST_BIND(sym->st_info) != STB_GLOBAL &&
- ELF64_ST_BIND(sym->st_info) != STB_WEAK)
- continue;
- if (sym->st_shndx == SHN_UNDEF)
- continue;
- if (strcmp(name, vdso_info.symstrings + sym->st_name))
- continue;
-
- /* Check symbol version. */
- if (vdso_info.versym
- && !vdso_match_version(vdso_info.versym[chain],
- version, ver_hash))
- continue;
-
- return (void *)(vdso_info.load_offset + sym->st_value);
- }
-
- return 0;
-}
-
-void vdso_init_from_auxv(void *auxv)
-{
- ELF(auxv_t) *elf_auxv = auxv;
- for (int i = 0; elf_auxv[i].a_type != AT_NULL; i++)
- {
- if (elf_auxv[i].a_type == AT_SYSINFO_EHDR) {
- vdso_init_from_sysinfo_ehdr(elf_auxv[i].a_un.a_val);
- return;
- }
- }
-
- vdso_info.valid = false;
-}
diff --git a/Documentation/vDSO/vdso_standalone_test_x86.c b/Documentation/vDSO/vdso_standalone_test_x86.c
deleted file mode 100644
index 93b0ebf8cc38..000000000000
--- a/Documentation/vDSO/vdso_standalone_test_x86.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * vdso_test.c: Sample code to test parse_vdso.c on x86
- * Copyright (c) 2011-2014 Andy Lutomirski
- * Subject to the GNU General Public License, version 2
- *
- * You can amuse yourself by compiling with:
- * gcc -std=gnu99 -nostdlib
- * -Os -fno-asynchronous-unwind-tables -flto -lgcc_s
- * vdso_standalone_test_x86.c parse_vdso.c
- * to generate a small binary. On x86_64, you can omit -lgcc_s
- * if you want the binary to be completely standalone.
- */
-
-#include <sys/syscall.h>
-#include <sys/time.h>
-#include <unistd.h>
-#include <stdint.h>
-
-extern void *vdso_sym(const char *version, const char *name);
-extern void vdso_init_from_sysinfo_ehdr(uintptr_t base);
-extern void vdso_init_from_auxv(void *auxv);
-
-/* We need a libc functions... */
-int strcmp(const char *a, const char *b)
-{
- /* This implementation is buggy: it never returns -1. */
- while (*a || *b) {
- if (*a != *b)
- return 1;
- if (*a == 0 || *b == 0)
- return 1;
- a++;
- b++;
- }
-
- return 0;
-}
-
-/* ...and two syscalls. This is x86-specific. */
-static inline long x86_syscall3(long nr, long a0, long a1, long a2)
-{
- long ret;
-#ifdef __x86_64__
- asm volatile ("syscall" : "=a" (ret) : "a" (nr),
- "D" (a0), "S" (a1), "d" (a2) :
- "cc", "memory", "rcx",
- "r8", "r9", "r10", "r11" );
-#else
- asm volatile ("int $0x80" : "=a" (ret) : "a" (nr),
- "b" (a0), "c" (a1), "d" (a2) :
- "cc", "memory" );
-#endif
- return ret;
-}
-
-static inline long linux_write(int fd, const void *data, size_t len)
-{
- return x86_syscall3(__NR_write, fd, (long)data, (long)len);
-}
-
-static inline void linux_exit(int code)
-{
- x86_syscall3(__NR_exit, code, 0, 0);
-}
-
-void to_base10(char *lastdig, time_t n)
-{
- while (n) {
- *lastdig = (n % 10) + '0';
- n /= 10;
- lastdig--;
- }
-}
-
-__attribute__((externally_visible)) void c_main(void **stack)
-{
- /* Parse the stack */
- long argc = (long)*stack;
- stack += argc + 2;
-
- /* Now we're pointing at the environment. Skip it. */
- while(*stack)
- stack++;
- stack++;
-
- /* Now we're pointing at auxv. Initialize the vDSO parser. */
- vdso_init_from_auxv((void *)stack);
-
- /* Find gettimeofday. */
- typedef long (*gtod_t)(struct timeval *tv, struct timezone *tz);
- gtod_t gtod = (gtod_t)vdso_sym("LINUX_2.6", "__vdso_gettimeofday");
-
- if (!gtod)
- linux_exit(1);
-
- struct timeval tv;
- long ret = gtod(&tv, 0);
-
- if (ret == 0) {
- char buf[] = "The time is .000000\n";
- to_base10(buf + 31, tv.tv_sec);
- to_base10(buf + 38, tv.tv_usec);
- linux_write(1, buf, sizeof(buf) - 1);
- } else {
- linux_exit(ret);
- }
-
- linux_exit(0);
-}
-
-/*
- * This is the real entry point. It passes the initial stack into
- * the C entry point.
- */
-asm (
- ".text\n"
- ".global _start\n"
- ".type _start,@function\n"
- "_start:\n\t"
-#ifdef __x86_64__
- "mov %rsp,%rdi\n\t"
- "jmp c_main"
-#else
- "push %esp\n\t"
- "call c_main\n\t"
- "int $3"
-#endif
- );
diff --git a/Documentation/vDSO/vdso_test.c b/Documentation/vDSO/vdso_test.c
deleted file mode 100644
index 8daeb7d7032c..000000000000
--- a/Documentation/vDSO/vdso_test.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * vdso_test.c: Sample code to test parse_vdso.c
- * Copyright (c) 2014 Andy Lutomirski
- * Subject to the GNU General Public License, version 2
- *
- * Compile with:
- * gcc -std=gnu99 vdso_test.c parse_vdso.c
- *
- * Tested on x86, 32-bit and 64-bit. It may work on other architectures, too.
- */
-
-#include <stdint.h>
-#include <elf.h>
-#include <stdio.h>
-#include <sys/auxv.h>
-#include <sys/time.h>
-
-extern void *vdso_sym(const char *version, const char *name);
-extern void vdso_init_from_sysinfo_ehdr(uintptr_t base);
-extern void vdso_init_from_auxv(void *auxv);
-
-int main(int argc, char **argv)
-{
- unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR);
- if (!sysinfo_ehdr) {
- printf("AT_SYSINFO_EHDR is not present!\n");
- return 0;
- }
-
- vdso_init_from_sysinfo_ehdr(getauxval(AT_SYSINFO_EHDR));
-
- /* Find gettimeofday. */
- typedef long (*gtod_t)(struct timeval *tv, struct timezone *tz);
- gtod_t gtod = (gtod_t)vdso_sym("LINUX_2.6", "__vdso_gettimeofday");
-
- if (!gtod) {
- printf("Could not find __vdso_gettimeofday\n");
- return 1;
- }
-
- struct timeval tv;
- long ret = gtod(&tv, 0);
-
- if (ret == 0) {
- printf("The time is %lld.%06lld\n",
- (long long)tv.tv_sec, (long long)tv.tv_usec);
- } else {
- printf("__vdso_gettimeofday failed\n");
- }
-
- return 0;
-}
diff --git a/Documentation/watchdog/Makefile b/Documentation/watchdog/Makefile
deleted file mode 100644
index 6018f45f2471..000000000000
--- a/Documentation/watchdog/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-subdir-y := src
diff --git a/Documentation/watchdog/src/.gitignore b/Documentation/watchdog/src/.gitignore
deleted file mode 100644
index ac90997dba93..000000000000
--- a/Documentation/watchdog/src/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-watchdog-simple
-watchdog-test
diff --git a/Documentation/watchdog/src/Makefile b/Documentation/watchdog/src/Makefile
deleted file mode 100644
index 4a892c304983..000000000000
--- a/Documentation/watchdog/src/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# List of programs to build
-hostprogs-y := watchdog-simple watchdog-test
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
diff --git a/Documentation/watchdog/src/watchdog-simple.c b/Documentation/watchdog/src/watchdog-simple.c
deleted file mode 100644
index ba45803a2216..000000000000
--- a/Documentation/watchdog/src/watchdog-simple.c
+++ /dev/null
@@ -1,24 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-int main(void)
-{
- int fd = open("/dev/watchdog", O_WRONLY);
- int ret = 0;
- if (fd == -1) {
- perror("watchdog");
- exit(EXIT_FAILURE);
- }
- while (1) {
- ret = write(fd, "\0", 1);
- if (ret != 1) {
- ret = -1;
- break;
- }
- sleep(10);
- }
- close(fd);
- return ret;
-}
diff --git a/Documentation/watchdog/src/watchdog-test.c b/Documentation/watchdog/src/watchdog-test.c
deleted file mode 100644
index 6983d05097e2..000000000000
--- a/Documentation/watchdog/src/watchdog-test.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Watchdog Driver Test Program
- */
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <linux/types.h>
-#include <linux/watchdog.h>
-
-int fd;
-const char v = 'V';
-
-/*
- * This function simply sends an IOCTL to the driver, which in turn ticks
- * the PC Watchdog card to reset its internal timer so it doesn't trigger
- * a computer reset.
- */
-static void keep_alive(void)
-{
- int dummy;
-
- printf(".");
- ioctl(fd, WDIOC_KEEPALIVE, &dummy);
-}
-
-/*
- * The main program. Run the program with "-d" to disable the card,
- * or "-e" to enable the card.
- */
-
-static void term(int sig)
-{
- int ret = write(fd, &v, 1);
-
- close(fd);
- if (ret < 0)
- printf("\nStopping watchdog ticks failed (%d)...\n", errno);
- else
- printf("\nStopping watchdog ticks...\n");
- exit(0);
-}
-
-int main(int argc, char *argv[])
-{
- int flags;
- unsigned int ping_rate = 1;
- int ret;
-
- setbuf(stdout, NULL);
-
- fd = open("/dev/watchdog", O_WRONLY);
-
- if (fd == -1) {
- printf("Watchdog device not enabled.\n");
- exit(-1);
- }
-
- if (argc > 1) {
- if (!strncasecmp(argv[1], "-d", 2)) {
- flags = WDIOS_DISABLECARD;
- ioctl(fd, WDIOC_SETOPTIONS, &flags);
- printf("Watchdog card disabled.\n");
- goto end;
- } else if (!strncasecmp(argv[1], "-e", 2)) {
- flags = WDIOS_ENABLECARD;
- ioctl(fd, WDIOC_SETOPTIONS, &flags);
- printf("Watchdog card enabled.\n");
- goto end;
- } else if (!strncasecmp(argv[1], "-t", 2) && argv[2]) {
- flags = atoi(argv[2]);
- ioctl(fd, WDIOC_SETTIMEOUT, &flags);
- printf("Watchdog timeout set to %u seconds.\n", flags);
- goto end;
- } else if (!strncasecmp(argv[1], "-p", 2) && argv[2]) {
- ping_rate = strtoul(argv[2], NULL, 0);
- printf("Watchdog ping rate set to %u seconds.\n", ping_rate);
- } else {
- printf("-d to disable, -e to enable, -t <n> to set " \
- "the timeout,\n-p <n> to set the ping rate, and \n");
- printf("run by itself to tick the card.\n");
- goto end;
- }
- }
-
- printf("Watchdog Ticking Away!\n");
-
- signal(SIGINT, term);
-
- while(1) {
- keep_alive();
- sleep(ping_rate);
- }
-end:
- ret = write(fd, &v, 1);
- if (ret < 0)
- printf("Stopping watchdog ticks failed (%d)...\n", errno);
- close(fd);
- return 0;
-}
diff --git a/Documentation/watchdog/watchdog-api.txt b/Documentation/watchdog/watchdog-api.txt
index b3a701f48118..0e62ba33b7fb 100644
--- a/Documentation/watchdog/watchdog-api.txt
+++ b/Documentation/watchdog/watchdog-api.txt
@@ -37,7 +37,7 @@ activates as soon as /dev/watchdog is opened and will reboot unless
the watchdog is pinged within a certain time, this time is called the
timeout or margin. The simplest way to ping the watchdog is to write
some data to the device. So a very simple watchdog daemon would look
-like this source file: see Documentation/watchdog/src/watchdog-simple.c
+like this source file: see samples/watchdog/watchdog-simple.c
A more advanced driver could for example check that a HTTP server is
still responding before doing the write call to ping the watchdog.
diff --git a/Documentation/watchdog/wdt.txt b/Documentation/watchdog/wdt.txt
index 061c2e35384f..ed2f0b860869 100644
--- a/Documentation/watchdog/wdt.txt
+++ b/Documentation/watchdog/wdt.txt
@@ -47,4 +47,4 @@ The external event interfaces on the WDT boards are not currently supported.
Minor numbers are however allocated for it.
-Example Watchdog Driver: see Documentation/watchdog/src/watchdog-simple.c
+Example Watchdog Driver: see samples/watchdog/watchdog-simple.c