}
while (rdir->head < rdir->tail) {
p9stat_init(&st);
- err = p9stat_read(rdir->buf + rdir->head,
- rdir->tail - rdir->head, &st,
- fid->clnt->proto_version);
+ err = p9stat_read(fid->clnt, rdir->buf + rdir->head,
+ rdir->tail - rdir->head, &st);
if (err) {
P9_DPRINTK(P9_DEBUG_VFS, "returned %d\n", err);
err = -EIO;
while (rdir->head < rdir->tail) {
- err = p9dirent_read(rdir->buf + rdir->head,
- rdir->tail - rdir->head,
- &curdirent,
- fid->clnt->proto_version);
+ err = p9dirent_read(fid->clnt, rdir->buf + rdir->head,
+ rdir->tail - rdir->head,
+ &curdirent);
if (err < 0) {
P9_DPRINTK(P9_DEBUG_VFS, "returned %d\n", err);
err = -EIO;
} \
} while (0)
-#define P9_DUMP_PKT(way, pdu) p9pdu_dump(way, pdu)
-
#else
#define P9_DPRINTK(level, format, arg...) do { } while (0)
-#define P9_DUMP_PKT(way, pdu) do { } while (0)
#endif
int p9_client_write(struct p9_fid *fid, char *data, const char __user *udata,
u64 offset, u32 count);
int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset);
-int p9dirent_read(char *buf, int len, struct p9_dirent *dirent,
- int proto_version);
+int p9dirent_read(struct p9_client *clnt, char *buf, int len,
+ struct p9_dirent *dirent);
struct p9_wstat *p9_client_stat(struct p9_fid *fid);
int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst);
int p9_client_setattr(struct p9_fid *fid, struct p9_iattr_dotl *attr);
void p9_client_cb(struct p9_client *c, struct p9_req_t *req);
int p9_parse_header(struct p9_fcall *, int32_t *, int8_t *, int16_t *, int);
-int p9stat_read(char *, int, struct p9_wstat *, int);
+int p9stat_read(struct p9_client *, char *, int, struct p9_wstat *);
void p9stat_free(struct p9_wstat *);
int p9_is_proto_dotu(struct p9_client *clnt);
--- /dev/null
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM 9p
+
+#if !defined(_TRACE_9P_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_9P_H
+
+#include <linux/tracepoint.h>
+
+#define show_9p_op(type) \
+ __print_symbolic(type, \
+ { P9_TLERROR, "P9_TLERROR" }, \
+ { P9_RLERROR, "P9_RLERROR" }, \
+ { P9_TSTATFS, "P9_TSTATFS" }, \
+ { P9_RSTATFS, "P9_RSTATFS" }, \
+ { P9_TLOPEN, "P9_TLOPEN" }, \
+ { P9_RLOPEN, "P9_RLOPEN" }, \
+ { P9_TLCREATE, "P9_TLCREATE" }, \
+ { P9_RLCREATE, "P9_RLCREATE" }, \
+ { P9_TSYMLINK, "P9_TSYMLINK" }, \
+ { P9_RSYMLINK, "P9_RSYMLINK" }, \
+ { P9_TMKNOD, "P9_TMKNOD" }, \
+ { P9_RMKNOD, "P9_RMKNOD" }, \
+ { P9_TRENAME, "P9_TRENAME" }, \
+ { P9_RRENAME, "P9_RRENAME" }, \
+ { P9_TREADLINK, "P9_TREADLINK" }, \
+ { P9_RREADLINK, "P9_RREADLINK" }, \
+ { P9_TGETATTR, "P9_TGETATTR" }, \
+ { P9_RGETATTR, "P9_RGETATTR" }, \
+ { P9_TSETATTR, "P9_TSETATTR" }, \
+ { P9_RSETATTR, "P9_RSETATTR" }, \
+ { P9_TXATTRWALK, "P9_TXATTRWALK" }, \
+ { P9_RXATTRWALK, "P9_RXATTRWALK" }, \
+ { P9_TXATTRCREATE, "P9_TXATTRCREATE" }, \
+ { P9_RXATTRCREATE, "P9_RXATTRCREATE" }, \
+ { P9_TREADDIR, "P9_TREADDIR" }, \
+ { P9_RREADDIR, "P9_RREADDIR" }, \
+ { P9_TFSYNC, "P9_TFSYNC" }, \
+ { P9_RFSYNC, "P9_RFSYNC" }, \
+ { P9_TLOCK, "P9_TLOCK" }, \
+ { P9_RLOCK, "P9_RLOCK" }, \
+ { P9_TGETLOCK, "P9_TGETLOCK" }, \
+ { P9_RGETLOCK, "P9_RGETLOCK" }, \
+ { P9_TLINK, "P9_TLINK" }, \
+ { P9_RLINK, "P9_RLINK" }, \
+ { P9_TMKDIR, "P9_TMKDIR" }, \
+ { P9_RMKDIR, "P9_RMKDIR" }, \
+ { P9_TRENAMEAT, "P9_TRENAMEAT" }, \
+ { P9_RRENAMEAT, "P9_RRENAMEAT" }, \
+ { P9_TUNLINKAT, "P9_TUNLINKAT" }, \
+ { P9_RUNLINKAT, "P9_RUNLINKAT" }, \
+ { P9_TVERSION, "P9_TVERSION" }, \
+ { P9_RVERSION, "P9_RVERSION" }, \
+ { P9_TAUTH, "P9_TAUTH" }, \
+ { P9_RAUTH, "P9_RAUTH" }, \
+ { P9_TATTACH, "P9_TATTACH" }, \
+ { P9_RATTACH, "P9_RATTACH" }, \
+ { P9_TERROR, "P9_TERROR" }, \
+ { P9_RERROR, "P9_RERROR" }, \
+ { P9_TFLUSH, "P9_TFLUSH" }, \
+ { P9_RFLUSH, "P9_RFLUSH" }, \
+ { P9_TWALK, "P9_TWALK" }, \
+ { P9_RWALK, "P9_RWALK" }, \
+ { P9_TOPEN, "P9_TOPEN" }, \
+ { P9_ROPEN, "P9_ROPEN" }, \
+ { P9_TCREATE, "P9_TCREATE" }, \
+ { P9_RCREATE, "P9_RCREATE" }, \
+ { P9_TREAD, "P9_TREAD" }, \
+ { P9_RREAD, "P9_RREAD" }, \
+ { P9_TWRITE, "P9_TWRITE" }, \
+ { P9_RWRITE, "P9_RWRITE" }, \
+ { P9_TCLUNK, "P9_TCLUNK" }, \
+ { P9_RCLUNK, "P9_RCLUNK" }, \
+ { P9_TREMOVE, "P9_TREMOVE" }, \
+ { P9_RREMOVE, "P9_RREMOVE" }, \
+ { P9_TSTAT, "P9_TSTAT" }, \
+ { P9_RSTAT, "P9_RSTAT" }, \
+ { P9_TWSTAT, "P9_TWSTAT" }, \
+ { P9_RWSTAT, "P9_RWSTAT" })
+
+TRACE_EVENT(9p_client_req,
+ TP_PROTO(struct p9_client *clnt, int8_t type, int tag),
+
+ TP_ARGS(clnt, type, tag),
+
+ TP_STRUCT__entry(
+ __field( void *, clnt )
+ __field( __u8, type )
+ __field( __u32, tag )
+ ),
+
+ TP_fast_assign(
+ __entry->clnt = clnt;
+ __entry->type = type;
+ __entry->tag = tag;
+ ),
+
+ TP_printk("client %lu request %s tag %d",
+ (long)__entry->clnt, show_9p_op(__entry->type),
+ __entry->tag)
+ );
+
+TRACE_EVENT(9p_client_res,
+ TP_PROTO(struct p9_client *clnt, int8_t type, int tag, int err),
+
+ TP_ARGS(clnt, type, tag, err),
+
+ TP_STRUCT__entry(
+ __field( void *, clnt )
+ __field( __u8, type )
+ __field( __u32, tag )
+ __field( __u32, err )
+ ),
+
+ TP_fast_assign(
+ __entry->clnt = clnt;
+ __entry->type = type;
+ __entry->tag = tag;
+ __entry->err = err;
+ ),
+
+ TP_printk("client %lu response %s tag %d err %d",
+ (long)__entry->clnt, show_9p_op(__entry->type),
+ __entry->tag, __entry->err)
+);
+
+/* dump 32 bytes of protocol data */
+#define P9_PROTO_DUMP_SZ 32
+TRACE_EVENT(9p_protocol_dump,
+ TP_PROTO(struct p9_client *clnt, struct p9_fcall *pdu),
+
+ TP_ARGS(clnt, pdu),
+
+ TP_STRUCT__entry(
+ __field( void *, clnt )
+ __field( __u8, type )
+ __field( __u16, tag )
+ __array( unsigned char, line, P9_PROTO_DUMP_SZ )
+ ),
+
+ TP_fast_assign(
+ __entry->clnt = clnt;
+ __entry->type = pdu->id;
+ __entry->tag = pdu->tag;
+ memcpy(__entry->line, pdu->sdata, P9_PROTO_DUMP_SZ);
+ ),
+ TP_printk("clnt %lu %s(tag = %d)\n%.3x: "
+ "%02x %02x %02x %02x %02x %02x %02x %02x "
+ "%02x %02x %02x %02x %02x %02x %02x %02x\n"
+ "%.3x: "
+ "%02x %02x %02x %02x %02x %02x %02x %02x "
+ "%02x %02x %02x %02x %02x %02x %02x %02x\n",
+ (long)__entry->clnt, show_9p_op(__entry->type),
+ __entry->tag, 0,
+ __entry->line[0], __entry->line[1],
+ __entry->line[2], __entry->line[3],
+ __entry->line[4], __entry->line[5],
+ __entry->line[6], __entry->line[7],
+ __entry->line[8], __entry->line[9],
+ __entry->line[10], __entry->line[11],
+ __entry->line[12], __entry->line[13],
+ __entry->line[14], __entry->line[15],
+ 16,
+ __entry->line[16], __entry->line[17],
+ __entry->line[18], __entry->line[19],
+ __entry->line[20], __entry->line[21],
+ __entry->line[22], __entry->line[23],
+ __entry->line[24], __entry->line[25],
+ __entry->line[26], __entry->line[27],
+ __entry->line[28], __entry->line[29],
+ __entry->line[30], __entry->line[31])
+ );
+
+#endif /* _TRACE_9P_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
#include <net/9p/transport.h>
#include "protocol.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/9p.h>
+
/*
* Client Option Parsing (code inspired by NFS code)
* - a little lazy - parse all client options
int ecode;
err = p9_parse_header(req->rc, NULL, &type, NULL, 0);
+ /*
+ * dump the response from server
+ * This should be after check errors which poplulate pdu_fcall.
+ */
+ trace_9p_protocol_dump(c, req->rc);
if (err) {
P9_DPRINTK(P9_DEBUG_ERROR, "couldn't parse header %d\n", err);
return err;
}
-
if (type != P9_RERROR && type != P9_RLERROR)
return 0;
char *ename = NULL;
err = p9_parse_header(req->rc, NULL, &type, NULL, 0);
+ /*
+ * dump the response from server
+ * This should be after parse_header which poplulate pdu_fcall.
+ */
+ trace_9p_protocol_dump(c, req->rc);
if (err) {
P9_DPRINTK(P9_DEBUG_ERROR, "couldn't parse header %d\n", err);
return err;
err = p9pdu_vwritef(req->tc, c->proto_version, fmt, ap);
if (err)
goto reterr;
- p9pdu_finalize(req->tc);
+ p9pdu_finalize(c, req->tc);
+ trace_9p_client_req(c, type, tag);
return req;
reterr:
p9_free_req(c, req);
goto reterr;
err = p9_check_errors(c, req);
- if (!err) {
- P9_DPRINTK(P9_DEBUG_MUX, "exit: client %p op %d\n", c, type);
+ trace_9p_client_res(c, type, req->rc->tag, err);
+ if (!err)
return req;
- }
reterr:
- P9_DPRINTK(P9_DEBUG_MUX,
- "exit: client %p op %d error: %d\n", c, type, err);
p9_free_req(c, req);
return ERR_PTR(err);
}
goto reterr;
err = p9_check_zc_errors(c, req, uidata, in_hdrlen, kern_buf);
- if (!err) {
- P9_DPRINTK(P9_DEBUG_MUX, "exit: client %p op %d\n", c, type);
+ trace_9p_client_res(c, type, req->rc->tag, err);
+ if (!err)
return req;
- }
reterr:
- P9_DPRINTK(P9_DEBUG_MUX, "exit: client %p op %d error: %d\n", c, type,
- err);
p9_free_req(c, req);
return ERR_PTR(err);
}
err = p9pdu_readf(req->rc, c->proto_version, "ds", &msize, &version);
if (err) {
P9_DPRINTK(P9_DEBUG_9P, "version error %d\n", err);
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(c, req->rc);
goto error;
}
struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
char *uname, u32 n_uname, char *aname)
{
- int err;
+ int err = 0;
struct p9_req_t *req;
struct p9_fid *fid;
struct p9_qid qid;
- P9_DPRINTK(P9_DEBUG_9P, ">>> TATTACH afid %d uname %s aname %s\n",
- afid ? afid->fid : -1, uname, aname);
- err = 0;
+ P9_DPRINTK(P9_DEBUG_9P, ">>> TATTACH afid %d uname %s aname %s\n",
+ afid ? afid->fid : -1, uname, aname);
fid = p9_fid_create(clnt);
if (IS_ERR(fid)) {
err = PTR_ERR(fid);
err = p9pdu_readf(req->rc, clnt->proto_version, "Q", &qid);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
p9_free_req(clnt, req);
goto error;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "R", &nwqids, &wqids);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
p9_free_req(clnt, req);
goto clunk_fid;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "Qd", &qid, &iounit);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto free_and_error;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "Qd", qid, &iounit);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto free_and_error;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "Qd", &qid, &iounit);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto free_and_error;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto free_and_error;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "D", &count, &dataptr);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto free_and_error;
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RREAD count %d\n", count);
- P9_DUMP_PKT(1, req->rc);
if (non_zc) {
if (data) {
err = p9pdu_readf(req->rc, clnt->proto_version, "d", &count);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto free_and_error;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "wS", &ignored, ret);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
p9_free_req(clnt, req);
goto error;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "A", ret);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
p9_free_req(clnt, req);
goto error;
}
&sb->bsize, &sb->blocks, &sb->bfree, &sb->bavail,
&sb->files, &sb->ffree, &sb->fsid, &sb->namelen);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
p9_free_req(clnt, req);
goto error;
}
}
err = p9pdu_readf(req->rc, clnt->proto_version, "q", attr_size);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
p9_free_req(clnt, req);
goto clunk_fid;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "D", &count, &dataptr);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto free_and_error;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto error;
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RMKNOD qid %x.%llx.%x\n", qid->type,
err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto error;
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RMKDIR qid %x.%llx.%x\n", qid->type,
err = p9pdu_readf(req->rc, clnt->proto_version, "b", status);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto error;
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RLOCK status %i\n", *status);
&glock->start, &glock->length, &glock->proc_id,
&glock->client_id);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto error;
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RGETLOCK type %i start %lld length %lld "
err = p9pdu_readf(req->rc, clnt->proto_version, "s", target);
if (err) {
- P9_DUMP_PKT(1, req->rc);
+ trace_9p_protocol_dump(clnt, req->rc);
goto error;
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RREADLINK target %s\n", *target);
#include <net/9p/client.h>
#include "protocol.h"
+#include <trace/events/9p.h>
+
static int
p9pdu_writef(struct p9_fcall *pdu, int proto_version, const char *fmt, ...);
-#ifdef CONFIG_NET_9P_DEBUG
-void
-p9pdu_dump(int way, struct p9_fcall *pdu)
-{
- int len = pdu->size;
-
- if ((p9_debug_level & P9_DEBUG_VPKT) != P9_DEBUG_VPKT) {
- if ((p9_debug_level & P9_DEBUG_PKT) == P9_DEBUG_PKT) {
- if (len > 32)
- len = 32;
- } else {
- /* shouldn't happen */
- return;
- }
- }
-
- if (way)
- print_hex_dump_bytes("[9P] ", DUMP_PREFIX_OFFSET, pdu->sdata,
- len);
- else
- print_hex_dump_bytes("]9P[ ", DUMP_PREFIX_OFFSET, pdu->sdata,
- len);
-}
-#else
-void
-p9pdu_dump(int way, struct p9_fcall *pdu)
-{
-}
-#endif
-EXPORT_SYMBOL(p9pdu_dump);
-
void p9stat_free(struct p9_wstat *stbuf)
{
kfree(stbuf->name);
return ret;
}
-int p9stat_read(char *buf, int len, struct p9_wstat *st, int proto_version)
+int p9stat_read(struct p9_client *clnt, char *buf, int len, struct p9_wstat *st)
{
struct p9_fcall fake_pdu;
int ret;
fake_pdu.sdata = buf;
fake_pdu.offset = 0;
- ret = p9pdu_readf(&fake_pdu, proto_version, "S", st);
+ ret = p9pdu_readf(&fake_pdu, clnt->proto_version, "S", st);
if (ret) {
P9_DPRINTK(P9_DEBUG_9P, "<<< p9stat_read failed: %d\n", ret);
- P9_DUMP_PKT(0, &fake_pdu);
+ trace_9p_protocol_dump(clnt, &fake_pdu);
}
return ret;
return p9pdu_writef(pdu, 0, "dbw", 0, type, tag);
}
-int p9pdu_finalize(struct p9_fcall *pdu)
+int p9pdu_finalize(struct p9_client *clnt, struct p9_fcall *pdu)
{
int size = pdu->size;
int err;
err = p9pdu_writef(pdu, 0, "d", size);
pdu->size = size;
- P9_DUMP_PKT(0, pdu);
+ trace_9p_protocol_dump(clnt, pdu);
P9_DPRINTK(P9_DEBUG_9P, ">>> size=%d type: %d tag: %d\n", pdu->size,
pdu->id, pdu->tag);
pdu->size = 0;
}
-int p9dirent_read(char *buf, int len, struct p9_dirent *dirent,
- int proto_version)
+int p9dirent_read(struct p9_client *clnt, char *buf, int len,
+ struct p9_dirent *dirent)
{
struct p9_fcall fake_pdu;
int ret;
fake_pdu.sdata = buf;
fake_pdu.offset = 0;
- ret = p9pdu_readf(&fake_pdu, proto_version, "Qqbs", &dirent->qid,
- &dirent->d_off, &dirent->d_type, &nameptr);
+ ret = p9pdu_readf(&fake_pdu, clnt->proto_version, "Qqbs", &dirent->qid,
+ &dirent->d_off, &dirent->d_type, &nameptr);
if (ret) {
P9_DPRINTK(P9_DEBUG_9P, "<<< p9dirent_read failed: %d\n", ret);
- P9_DUMP_PKT(1, &fake_pdu);
+ trace_9p_protocol_dump(clnt, &fake_pdu);
goto out;
}
va_list ap);
int p9pdu_readf(struct p9_fcall *pdu, int proto_version, const char *fmt, ...);
int p9pdu_prepare(struct p9_fcall *pdu, int16_t tag, int8_t type);
-int p9pdu_finalize(struct p9_fcall *pdu);
-void p9pdu_dump(int, struct p9_fcall *);
+int p9pdu_finalize(struct p9_client *clnt, struct p9_fcall *pdu);
void p9pdu_reset(struct p9_fcall *pdu);
size_t pdu_read(struct p9_fcall *pdu, void *data, size_t size);
projects / cascardo / linux.git / commitdiff