| netmap_kern.h (230052) | netmap_kern.h (230058) |
|---|---|
| 1/* 2 * Copyright (C) 2011 Matteo Landi, Luigi Rizzo. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. --- 10 unchanged lines hidden (view full) --- 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26/* | 1/* 2 * Copyright (C) 2011 Matteo Landi, Luigi Rizzo. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. --- 10 unchanged lines hidden (view full) --- 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26/* |
| 27 * $FreeBSD: head/sys/dev/netmap/netmap_kern.h 230052 2012-01-13 10:21:15Z luigi $ | 27 * $FreeBSD: head/sys/dev/netmap/netmap_kern.h 230058 2012-01-13 11:58:06Z luigi $ |
| 28 * $Id: netmap_kern.h 9795 2011-12-02 11:39:08Z luigi $ 29 * 30 * The header contains the definitions of constants and function 31 * prototypes used only in kernelspace. 32 */ 33 34#ifndef _NET_NETMAP_KERN_H_ 35#define _NET_NETMAP_KERN_H_ 36 37#ifdef MALLOC_DECLARE 38MALLOC_DECLARE(M_NETMAP); 39#endif 40 41#define ND(format, ...) | 28 * $Id: netmap_kern.h 9795 2011-12-02 11:39:08Z luigi $ 29 * 30 * The header contains the definitions of constants and function 31 * prototypes used only in kernelspace. 32 */ 33 34#ifndef _NET_NETMAP_KERN_H_ 35#define _NET_NETMAP_KERN_H_ 36 37#ifdef MALLOC_DECLARE 38MALLOC_DECLARE(M_NETMAP); 39#endif 40 41#define ND(format, ...) |
| 42#define D(format, ...) \ 43 do { \ 44 struct timeval __xxts; \ | 42#define D(format, ...) \ 43 do { \ 44 struct timeval __xxts; \ |
| 45 microtime(&__xxts); \ | 45 microtime(&__xxts); \ |
| 46 printf("%03d.%06d %s [%d] " format "\n",\ 47 (int)__xxts.tv_sec % 1000, (int)__xxts.tv_usec, \ 48 __FUNCTION__, __LINE__, ##__VA_ARGS__); \ | 46 printf("%03d.%06d %s [%d] " format "\n", \ 47 (int)__xxts.tv_sec % 1000, (int)__xxts.tv_usec, \ 48 __FUNCTION__, __LINE__, ##__VA_ARGS__); \ |
| 49 } while (0) 50 51struct netmap_adapter; 52 53/* 54 * private, kernel view of a ring. 55 * 56 * XXX 20110627-todo --- 135 unchanged lines hidden (view full) --- 192#ifndef WNA 193#define WNA(_ifp) (_ifp)->if_pspare[0] 194#endif 195#define NA(_ifp) ((struct netmap_adapter *)WNA(_ifp)) 196 197 198/* Callback invoked by the dma machinery after a successfull dmamap_load */ 199static void netmap_dmamap_cb(__unused void *arg, | 49 } while (0) 50 51struct netmap_adapter; 52 53/* 54 * private, kernel view of a ring. 55 * 56 * XXX 20110627-todo --- 135 unchanged lines hidden (view full) --- 192#ifndef WNA 193#define WNA(_ifp) (_ifp)->if_pspare[0] 194#endif 195#define NA(_ifp) ((struct netmap_adapter *)WNA(_ifp)) 196 197 198/* Callback invoked by the dma machinery after a successfull dmamap_load */ 199static void netmap_dmamap_cb(__unused void *arg, |
| 200 __unused bus_dma_segment_t * segs, __unused int nseg, __unused int error) | 200 __unused bus_dma_segment_t * segs, __unused int nseg, __unused int error) |
| 201{ 202} 203 204/* bus_dmamap_load wrapper: call aforementioned function if map != NULL. 205 * XXX can we do it without a callback ? 206 */ 207static inline void 208netmap_load_map(bus_dma_tag_t tag, bus_dmamap_t map, void *buf) 209{ 210 if (map) 211 bus_dmamap_load(tag, map, buf, NETMAP_BUF_SIZE, | 201{ 202} 203 204/* bus_dmamap_load wrapper: call aforementioned function if map != NULL. 205 * XXX can we do it without a callback ? 206 */ 207static inline void 208netmap_load_map(bus_dma_tag_t tag, bus_dmamap_t map, void *buf) 209{ 210 if (map) 211 bus_dmamap_load(tag, map, buf, NETMAP_BUF_SIZE, |
| 212 netmap_dmamap_cb, NULL, BUS_DMA_NOWAIT); | 212 netmap_dmamap_cb, NULL, BUS_DMA_NOWAIT); |
| 213} 214 215/* update the map when a buffer changes. */ 216static inline void 217netmap_reload_map(bus_dma_tag_t tag, bus_dmamap_t map, void *buf) 218{ 219 if (map) { 220 bus_dmamap_unload(tag, map); 221 bus_dmamap_load(tag, map, buf, NETMAP_BUF_SIZE, | 213} 214 215/* update the map when a buffer changes. */ 216static inline void 217netmap_reload_map(bus_dma_tag_t tag, bus_dmamap_t map, void *buf) 218{ 219 if (map) { 220 bus_dmamap_unload(tag, map); 221 bus_dmamap_load(tag, map, buf, NETMAP_BUF_SIZE, |
| 222 netmap_dmamap_cb, NULL, BUS_DMA_NOWAIT); | 222 netmap_dmamap_cb, NULL, BUS_DMA_NOWAIT); |
| 223 } 224} 225 226 227/* 228 * NMB return the virtual address of a buffer (buffer 0 on bad index) 229 * PNMB also fills the physical address | 223 } 224} 225 226 227/* 228 * NMB return the virtual address of a buffer (buffer 0 on bad index) 229 * PNMB also fills the physical address |
| 230 * XXX this is a special version with hardwired 2k bufs | |
| 231 */ 232static inline void * 233NMB(struct netmap_slot *slot) 234{ 235 uint32_t i = slot->buf_idx; 236 return (i >= netmap_total_buffers) ? netmap_buffer_base : 237#if NETMAP_BUF_SIZE == 2048 238 netmap_buffer_base + (i << 11); --- 20 unchanged lines hidden --- | 230 */ 231static inline void * 232NMB(struct netmap_slot *slot) 233{ 234 uint32_t i = slot->buf_idx; 235 return (i >= netmap_total_buffers) ? netmap_buffer_base : 236#if NETMAP_BUF_SIZE == 2048 237 netmap_buffer_base + (i << 11); --- 20 unchanged lines hidden --- |