| netmap_kern.h (231594) | netmap_kern.h (231796) |
|---|---|
| 1/* 2 * Copyright (C) 2011-2012 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) 2011-2012 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 231594 2012-02-13 18:56:34Z luigi $ | 27 * $FreeBSD: head/sys/dev/netmap/netmap_kern.h 231796 2012-02-15 23:13:29Z 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_ --- 209 unchanged lines hidden (view full) --- 245{ 246 if (map) { 247 bus_dmamap_unload(tag, map); 248 bus_dmamap_load(tag, map, buf, NETMAP_BUF_SIZE, 249 netmap_dmamap_cb, NULL, BUS_DMA_NOWAIT); 250 } 251} 252 | 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_ --- 209 unchanged lines hidden (view full) --- 245{ 246 if (map) { 247 bus_dmamap_unload(tag, map); 248 bus_dmamap_load(tag, map, buf, NETMAP_BUF_SIZE, 249 netmap_dmamap_cb, NULL, BUS_DMA_NOWAIT); 250 } 251} 252 |
| 253/* 254 * functions to map NIC to KRING indexes (n2k) and vice versa (k2n) 255 */ 256static inline int 257netmap_ridx_n2k(struct netmap_adapter *na, int ring, int nic_idx) 258{ 259 int kring_idx = nic_idx + na->rx_rings[ring].nkr_hwofs; 260 if (kring_idx < 0) 261 return kring_idx + na->num_rx_desc; 262 else if (kring_idx < na->num_rx_desc) 263 return kring_idx; 264 else 265 return kring_idx - na->num_rx_desc; 266} |
|
| 253 | 267 |
| 268static inline int 269netmap_tidx_n2k(struct netmap_adapter *na, int ring, int nic_idx) 270{ 271 int kring_idx = nic_idx + na->tx_rings[ring].nkr_hwofs; 272 if (kring_idx < 0) 273 return kring_idx + na->num_tx_desc; 274 else if (kring_idx < na->num_tx_desc) 275 return kring_idx; 276 else 277 return kring_idx - na->num_tx_desc; 278} 279 280 281static inline int 282netmap_ridx_k2n(struct netmap_adapter *na, int ring, int kring_idx) 283{ 284 int nic_idx = kring_idx - na->rx_rings[ring].nkr_hwofs; 285 if (nic_idx < 0) 286 return nic_idx + na->num_rx_desc; 287 else if (nic_idx < na->num_rx_desc) 288 return nic_idx; 289 else 290 return nic_idx - na->num_rx_desc; 291} 292 293 294static inline int 295netmap_tidx_k2n(struct netmap_adapter *na, int ring, int kring_idx) 296{ 297 int nic_idx = kring_idx - na->tx_rings[ring].nkr_hwofs; 298 if (nic_idx < 0) 299 return nic_idx + na->num_tx_desc; 300 else if (nic_idx < na->num_tx_desc) 301 return nic_idx; 302 else 303 return nic_idx - na->num_tx_desc; 304} 305 |
|
| 254/* 255 * NMB return the virtual address of a buffer (buffer 0 on bad index) 256 * PNMB also fills the physical address 257 */ 258static inline void * 259NMB(struct netmap_slot *slot) 260{ 261 uint32_t i = slot->buf_idx; --- 22 unchanged lines hidden --- | 306/* 307 * NMB return the virtual address of a buffer (buffer 0 on bad index) 308 * PNMB also fills the physical address 309 */ 310static inline void * 311NMB(struct netmap_slot *slot) 312{ 313 uint32_t i = slot->buf_idx; --- 22 unchanged lines hidden --- |