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-rw-r--r--include/net/9p/9p.h14
-rw-r--r--include/net/9p/client.h8
-rw-r--r--include/net/9p/transport.h10
-rw-r--r--include/trace/events/9p.h176
4 files changed, 185 insertions, 23 deletions
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index a6326ef8ade6..2d70b95b3b55 100644
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -76,11 +76,8 @@ do { \
} \
} 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
@@ -359,6 +356,9 @@ enum p9_qid_t {
/* Room for readdir header */
#define P9_READDIRHDRSZ 24
+/* size of header for zero copy read/write */
+#define P9_ZC_HDR_SZ 4096
+
/**
* struct p9_qid - file system entity information
* @type: 8-bit type &p9_qid_t
@@ -555,10 +555,6 @@ struct p9_rstatfs {
* @tag: transaction id of the request
* @offset: used by marshalling routines to track current position in buffer
* @capacity: used by marshalling routines to track total malloc'd capacity
- * @pubuf: Payload user buffer given by the caller
- * @pkbuf: Payload kernel buffer given by the caller
- * @pbuf_size: pubuf/pkbuf(only one will be !NULL) size to be read/write.
- * @private: For transport layer's use.
* @sdata: payload
*
* &p9_fcall represents the structure for all 9P RPC
@@ -575,10 +571,6 @@ struct p9_fcall {
size_t offset;
size_t capacity;
- char __user *pubuf;
- char *pkbuf;
- size_t pbuf_size;
- void *private;
u8 *sdata;
};
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 55ce72ce9861..fc9b90b0c052 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -151,7 +151,7 @@ struct p9_req_t {
struct p9_client {
spinlock_t lock; /* protect client structure */
- int msize;
+ unsigned int msize;
unsigned char proto_version;
struct p9_trans_module *trans_mod;
enum p9_trans_status status;
@@ -240,8 +240,8 @@ int p9_client_read(struct p9_fid *fid, char *data, char __user *udata,
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);
@@ -259,7 +259,7 @@ struct p9_req_t *p9_tag_lookup(struct p9_client *, u16);
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);
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index 83531ebeee99..adcbb20f6511 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -26,13 +26,6 @@
#ifndef NET_9P_TRANSPORT_H
#define NET_9P_TRANSPORT_H
-#define P9_TRANS_PREF_PAYLOAD_MASK 0x1
-
-/* Default. Add Payload to PDU before sending it down to transport layer */
-#define P9_TRANS_PREF_PAYLOAD_DEF 0x0
-/* Send pay load separately to transport layer along with PDU.*/
-#define P9_TRANS_PREF_PAYLOAD_SEP 0x1
-
/**
* struct p9_trans_module - transport module interface
* @list: used to maintain a list of currently available transports
@@ -56,13 +49,14 @@ struct p9_trans_module {
struct list_head list;
char *name; /* name of transport */
int maxsize; /* max message size of transport */
- int pref; /* Preferences of this transport */
int def; /* this transport should be default */
struct module *owner;
int (*create)(struct p9_client *, const char *, char *);
void (*close) (struct p9_client *);
int (*request) (struct p9_client *, struct p9_req_t *req);
int (*cancel) (struct p9_client *, struct p9_req_t *req);
+ int (*zc_request)(struct p9_client *, struct p9_req_t *,
+ char *, char *, int , int, int, int);
};
void v9fs_register_trans(struct p9_trans_module *m);
diff --git a/include/trace/events/9p.h b/include/trace/events/9p.h
new file mode 100644
index 000000000000..beeaed8398ec
--- /dev/null
+++ b/include/trace/events/9p.h
@@ -0,0 +1,176 @@
+#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>
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-25 16:39:05 +0300