| ng_source.c (141745) | ng_source.c (143387) |
|---|---|
| 1/* 2 * ng_source.c 3 */ 4 5/*- 6 * Copyright 2002 Sandvine Inc. 7 * All rights reserved. 8 * --- 24 unchanged lines hidden (view full) --- 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF SANDVINE IS ADVISED OF THE POSSIBILITY OF SUCH 35 * DAMAGE. 36 * 37 * Author: Dave Chapeskie <dchapeskie@sandvine.com> 38 */ 39 40#include <sys/cdefs.h> | 1/* 2 * ng_source.c 3 */ 4 5/*- 6 * Copyright 2002 Sandvine Inc. 7 * All rights reserved. 8 * --- 24 unchanged lines hidden (view full) --- 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF SANDVINE IS ADVISED OF THE POSSIBILITY OF SUCH 35 * DAMAGE. 36 * 37 * Author: Dave Chapeskie <dchapeskie@sandvine.com> 38 */ 39 40#include <sys/cdefs.h> |
| 41__FBSDID("$FreeBSD: head/sys/netgraph/ng_source.c 141745 2005-02-12 17:03:01Z ru $"); | 41__FBSDID("$FreeBSD: head/sys/netgraph/ng_source.c 143387 2005-03-10 21:50:50Z bmilekic $"); |
| 42 43/* 44 * This node is used for high speed packet geneneration. It queues | 42 43/* 44 * This node is used for high speed packet geneneration. It queues |
| 45 * all data recieved on it's 'input' hook and when told to start via 46 * a control message it sends the packets out it's 'output' hook. In 47 * this way this node can be preloaded with a packet stream which is 48 * continuously sent. | 45 * all data recieved on its 'input' hook and when told to start via 46 * a control message it sends the packets out its 'output' hook. In 47 * this way this node can be preloaded with a packet stream which it 48 * can then send continuously as fast as possible. |
| 49 * 50 * Currently it just copies the mbufs as required. It could do various 51 * tricks to try and avoid this. Probably the best performance would 52 * be achieved by modifying the appropriate drivers to be told to 53 * self-re-enqueue packets (e.g. the if_bge driver could reuse the same 54 * transmit descriptors) under control of this node; perhaps via some | 49 * 50 * Currently it just copies the mbufs as required. It could do various 51 * tricks to try and avoid this. Probably the best performance would 52 * be achieved by modifying the appropriate drivers to be told to 53 * self-re-enqueue packets (e.g. the if_bge driver could reuse the same 54 * transmit descriptors) under control of this node; perhaps via some |
| 55 * flag in the mbuf or some such. The node would peak at an appropriate | 55 * flag in the mbuf or some such. The node could peek at an appropriate |
| 56 * ifnet flag to see if such support is available for the connected 57 * interface. 58 */ 59 60#include <sys/param.h> 61#include <sys/systm.h> 62#include <sys/errno.h> 63#include <sys/kernel.h> --- 6 unchanged lines hidden (view full) --- 70#include <netgraph/netgraph.h> 71#include <netgraph/ng_parse.h> 72#include <netgraph/ng_ether.h> 73#include <netgraph/ng_source.h> 74 75#define NG_SOURCE_INTR_TICKS 1 76#define NG_SOURCE_DRIVER_IFQ_MAXLEN (4*1024) 77 | 56 * ifnet flag to see if such support is available for the connected 57 * interface. 58 */ 59 60#include <sys/param.h> 61#include <sys/systm.h> 62#include <sys/errno.h> 63#include <sys/kernel.h> --- 6 unchanged lines hidden (view full) --- 70#include <netgraph/netgraph.h> 71#include <netgraph/ng_parse.h> 72#include <netgraph/ng_ether.h> 73#include <netgraph/ng_source.h> 74 75#define NG_SOURCE_INTR_TICKS 1 76#define NG_SOURCE_DRIVER_IFQ_MAXLEN (4*1024) 77 |
| 78 | |
| 79/* Per hook info */ 80struct source_hookinfo { 81 hook_p hook; 82}; 83 84/* Per node info */ 85struct privdata { 86 node_p node; --- 24 unchanged lines hidden (view full) --- 111static int ng_source_request_output_ifp (sc_p); 112static void ng_source_clr_data (sc_p); 113static void ng_source_start (sc_p); 114static void ng_source_stop (sc_p); 115static int ng_source_send (sc_p, int, int *); 116static int ng_source_store_output_ifp(sc_p sc, 117 struct ng_mesg *msg); 118 | 78/* Per hook info */ 79struct source_hookinfo { 80 hook_p hook; 81}; 82 83/* Per node info */ 84struct privdata { 85 node_p node; --- 24 unchanged lines hidden (view full) --- 110static int ng_source_request_output_ifp (sc_p); 111static void ng_source_clr_data (sc_p); 112static void ng_source_start (sc_p); 113static void ng_source_stop (sc_p); 114static int ng_source_send (sc_p, int, int *); 115static int ng_source_store_output_ifp(sc_p sc, 116 struct ng_mesg *msg); 117 |
| 119 | |
| 120/* Parse type for timeval */ 121static const struct ng_parse_struct_field ng_source_timeval_type_fields[] = { 122 { "tv_sec", &ng_parse_int32_type }, 123 { "tv_usec", &ng_parse_int32_type }, 124 { NULL } 125}; 126const struct ng_parse_type ng_source_timeval_type = { 127 &ng_parse_struct_type, --- 570 unchanged lines hidden --- | 118/* Parse type for timeval */ 119static const struct ng_parse_struct_field ng_source_timeval_type_fields[] = { 120 { "tv_sec", &ng_parse_int32_type }, 121 { "tv_usec", &ng_parse_int32_type }, 122 { NULL } 123}; 124const struct ng_parse_type ng_source_timeval_type = { 125 &ng_parse_struct_type, --- 570 unchanged lines hidden --- |