cxgb_osdep.h revision 175311
1/************************************************************************** 2 3Copyright (c) 2007, Chelsio Inc. 4All rights reserved. 5 6Redistribution and use in source and binary forms, with or without 7modification, are permitted provided that the following conditions are met: 8 9 1. Redistributions of source code must retain the above copyright notice, 10 this list of conditions and the following disclaimer. 11 12 2. Neither the name of the Chelsio Corporation nor the names of its 13 contributors may be used to endorse or promote products derived from 14 this software without specific prior written permission. 15 16THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 20LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26POSSIBILITY OF SUCH DAMAGE. 27 28 29$FreeBSD: head/sys/dev/cxgb/cxgb_osdep.h 175311 2008-01-14 05:56:03Z kmacy $ 30 31***************************************************************************/ 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/ctype.h> 36#include <sys/endian.h> 37#include <sys/bus.h> 38 39#include <sys/lock.h> 40#include <sys/mutex.h> 41 42#include <dev/mii/mii.h> 43 44#ifdef CONFIG_DEFINED 45#include <common/cxgb_version.h> 46#include <cxgb_config.h> 47#else 48#include <dev/cxgb/common/cxgb_version.h> 49#include <dev/cxgb/cxgb_config.h> 50#endif 51 52#ifndef _CXGB_OSDEP_H_ 53#define _CXGB_OSDEP_H_ 54 55typedef struct adapter adapter_t; 56struct sge_rspq; 57 58 59struct t3_mbuf_hdr { 60 struct mbuf *mh_head; 61 struct mbuf *mh_tail; 62}; 63 64#define PANIC_IF(exp) do { \ 65 if (exp) \ 66 panic("BUG: %s", #exp); \ 67} while (0) 68 69#define m_get_priority(m) ((uintptr_t)(m)->m_pkthdr.rcvif) 70#define m_set_priority(m, pri) ((m)->m_pkthdr.rcvif = (struct ifnet *)((uintptr_t)pri)) 71#define m_set_sgl(m, sgl) ((m)->m_pkthdr.header = (sgl)) 72#define m_get_sgl(m) ((bus_dma_segment_t *)(m)->m_pkthdr.header) 73#define m_set_sgllen(m, len) ((m)->m_pkthdr.ether_vtag = len) 74#define m_get_sgllen(m) ((m)->m_pkthdr.ether_vtag) 75 76/* 77 * XXX FIXME 78 */ 79#define m_set_toep(m, a) ((m)->m_pkthdr.header = (a)) 80#define m_get_toep(m) ((m)->m_pkthdr.header) 81#define m_set_handler(m, handler) ((m)->m_pkthdr.header = (handler)) 82 83#define m_set_socket(m, a) ((m)->m_pkthdr.header = (a)) 84#define m_get_socket(m) ((m)->m_pkthdr.header) 85 86#define MT_DONTFREE 128 87 88#if __FreeBSD_version > 700030 89#define INTR_FILTERS 90#define FIRMWARE_LATEST 91#endif 92 93#if ((__FreeBSD_version > 602103) && (__FreeBSD_version < 700000)) 94#define FIRMWARE_LATEST 95#endif 96 97#if __FreeBSD_version > 700000 98#define MSI_SUPPORTED 99#define TSO_SUPPORTED 100#define VLAN_SUPPORTED 101#define TASKQUEUE_CURRENT 102#else 103#define if_name(ifp) (ifp)->if_xname 104#define M_SANITY(m, n) 105#endif 106 107#define __read_mostly __attribute__((__section__(".data.read_mostly"))) 108 109/* 110 * Workaround for weird Chelsio issue 111 */ 112#if __FreeBSD_version > 700029 113#define PRIV_SUPPORTED 114#endif 115 116#define CXGB_TX_CLEANUP_THRESHOLD 32 117 118 119#ifdef DEBUG_PRINT 120#define DPRINTF printf 121#else 122#define DPRINTF(...) 123#endif 124 125#define TX_MAX_SIZE (1 << 16) /* 64KB */ 126#define TX_MAX_SEGS 36 /* maximum supported by card */ 127 128#define TX_MAX_DESC 4 /* max descriptors per packet */ 129 130 131#define TX_START_MIN_DESC (TX_MAX_DESC << 2) 132 133 134 135#define TX_START_MAX_DESC (TX_MAX_DESC << 3) /* maximum number of descriptors 136 * call to start used per */ 137 138#define TX_CLEAN_MAX_DESC (TX_MAX_DESC << 4) /* maximum tx descriptors 139 * to clean per iteration */ 140#define TX_WR_SIZE_MAX 11*1024 /* the maximum total size of packets aggregated into a single 141 * TX WR 142 */ 143#define TX_WR_COUNT_MAX 7 /* the maximum total number of packets that can be 144 * aggregated into a single TX WR 145 */ 146 147 148#if defined(__i386__) || defined(__amd64__) 149#define mb() __asm volatile("mfence":::"memory") 150#define rmb() __asm volatile("lfence":::"memory") 151#define wmb() __asm volatile("sfence" ::: "memory") 152#define smp_mb() mb() 153 154#define L1_CACHE_BYTES 128 155static __inline 156void prefetch(void *x) 157{ 158 __asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x)); 159} 160 161extern void kdb_backtrace(void); 162 163#define WARN_ON(condition) do { \ 164 if (unlikely((condition)!=0)) { \ 165 log(LOG_WARNING, "BUG: warning at %s:%d/%s()\n", __FILE__, __LINE__, __FUNCTION__); \ 166 kdb_backtrace(); \ 167 } \ 168} while (0) 169 170 171#else /* !i386 && !amd64 */ 172#define mb() 173#define rmb() 174#define wmb() 175#define smp_mb() 176#define prefetch(x) 177#define L1_CACHE_BYTES 32 178#endif 179 180struct buf_ring { 181 caddr_t *br_ring; 182 volatile uint32_t br_cons; 183 volatile uint32_t br_prod; 184 int br_size; 185 struct mtx br_lock; 186}; 187 188struct buf_ring *buf_ring_alloc(int count, int flags); 189void buf_ring_free(struct buf_ring *); 190 191static __inline int 192buf_ring_count(struct buf_ring *mr) 193{ 194 int size = mr->br_size; 195 uint32_t mask = size - 1; 196 197 return ((size + mr->br_prod - mr->br_cons) & mask); 198} 199 200static __inline int 201buf_ring_empty(struct buf_ring *mr) 202{ 203 return (mr->br_cons == mr->br_prod); 204} 205 206static __inline int 207buf_ring_full(struct buf_ring *mr) 208{ 209 uint32_t mask; 210 211 mask = mr->br_size - 1; 212 return (mr->br_cons == ((mr->br_prod + 1) & mask)); 213} 214 215/* 216 * The producer and consumer are independently locked 217 * this relies on the consumer providing his own serialization 218 * 219 */ 220static __inline void * 221buf_ring_dequeue(struct buf_ring *mr) 222{ 223 uint32_t prod, cons, mask; 224 caddr_t *ring, m; 225 226 ring = (caddr_t *)mr->br_ring; 227 mask = mr->br_size - 1; 228 mtx_lock(&mr->br_lock); /* XXX temporary ? */ 229 cons = mr->br_cons; 230 mb(); 231 prod = mr->br_prod; 232 m = NULL; 233 if (cons != prod) { 234 m = ring[cons]; 235 ring[cons] = NULL; 236 mr->br_cons = (cons + 1) & mask; 237 mb(); 238 } 239 mtx_unlock(&mr->br_lock); /* XXX temporary ? */ 240 return (m); 241} 242 243#ifdef DEBUG_BUFRING 244static __inline void 245__buf_ring_scan(struct buf_ring *mr, void *m, char *file, int line) 246{ 247 int i; 248 249 for (i = 0; i < mr->br_size; i++) 250 if (m == mr->br_ring[i]) 251 panic("%s:%d m=%p present prod=%d cons=%d idx=%d", file, 252 line, m, mr->br_prod, mr->br_cons, i); 253} 254 255static __inline void 256buf_ring_scan(struct buf_ring *mr, void *m, char *file, int line) 257{ 258 mtx_lock(&mr->br_lock); 259 __buf_ring_scan(mr, m, file, line); 260 mtx_unlock(&mr->br_lock); 261} 262 263#else 264static __inline void 265__buf_ring_scan(struct buf_ring *mr, void *m, char *file, int line) 266{ 267} 268 269static __inline void 270buf_ring_scan(struct buf_ring *mr, void *m, char *file, int line) 271{ 272} 273#endif 274 275static __inline int 276__buf_ring_enqueue(struct buf_ring *mr, void *m, char *file, int line) 277{ 278 279 uint32_t prod, cons, mask; 280 int err; 281 282 mask = mr->br_size - 1; 283 prod = mr->br_prod; 284 mb(); 285 cons = mr->br_cons; 286 __buf_ring_scan(mr, m, file, line); 287 if (((prod + 1) & mask) != cons) { 288 KASSERT(mr->br_ring[prod] == NULL, ("overwriting entry")); 289 mr->br_ring[prod] = m; 290 mb(); 291 mr->br_prod = (prod + 1) & mask; 292 err = 0; 293 } else 294 err = ENOBUFS; 295 296 return (err); 297} 298 299static __inline int 300buf_ring_enqueue_(struct buf_ring *mr, void *m, char *file, int line) 301{ 302 int err; 303 304 mtx_lock(&mr->br_lock); 305 err = __buf_ring_enqueue(mr, m, file, line); 306 mtx_unlock(&mr->br_lock); 307 308 return (err); 309} 310 311#define buf_ring_enqueue(mr, m) buf_ring_enqueue_((mr), (m), __FILE__, __LINE__) 312 313 314static __inline void * 315buf_ring_peek(struct buf_ring *mr) 316{ 317 int prod, cons, mask; 318 caddr_t *ring, m; 319 320 ring = (caddr_t *)mr->br_ring; 321 mask = mr->br_size - 1; 322 cons = mr->br_cons; 323 prod = mr->br_prod; 324 m = NULL; 325 if (cons != prod) 326 m = ring[cons]; 327 328 return (m); 329} 330 331#define DBG_RX (1 << 0) 332static const int debug_flags = DBG_RX; 333 334#ifdef DEBUG_PRINT 335#define DBG(flag, msg) do { \ 336 if ((flag & debug_flags)) \ 337 printf msg; \ 338} while (0) 339#else 340#define DBG(...) 341#endif 342 343#define promisc_rx_mode(rm) ((rm)->port->ifp->if_flags & IFF_PROMISC) 344#define allmulti_rx_mode(rm) ((rm)->port->ifp->if_flags & IFF_ALLMULTI) 345 346#define CH_ERR(adap, fmt, ...)device_printf(adap->dev, fmt, ##__VA_ARGS__); 347 348#define CH_WARN(adap, fmt, ...) device_printf(adap->dev, fmt, ##__VA_ARGS__) 349#define CH_ALERT(adap, fmt, ...) device_printf(adap->dev, fmt, ##__VA_ARGS__) 350 351#define t3_os_sleep(x) DELAY((x) * 1000) 352 353#define test_and_clear_bit(bit, p) atomic_cmpset_int((p), ((*(p)) | (1<<bit)), ((*(p)) & ~(1<<bit))) 354 355#define max_t(type, a, b) (type)max((a), (b)) 356#define net_device ifnet 357#define cpu_to_be32 htobe32 358 359/* Standard PHY definitions */ 360#define BMCR_LOOPBACK BMCR_LOOP 361#define BMCR_ISOLATE BMCR_ISO 362#define BMCR_ANENABLE BMCR_AUTOEN 363#define BMCR_SPEED1000 BMCR_SPEED1 364#define BMCR_SPEED100 BMCR_SPEED0 365#define BMCR_ANRESTART BMCR_STARTNEG 366#define BMCR_FULLDPLX BMCR_FDX 367#define BMSR_LSTATUS BMSR_LINK 368#define BMSR_ANEGCOMPLETE BMSR_ACOMP 369 370#define MII_LPA MII_ANLPAR 371#define MII_ADVERTISE MII_ANAR 372#define MII_CTRL1000 MII_100T2CR 373 374#define ADVERTISE_PAUSE_CAP ANAR_FC 375#define ADVERTISE_PAUSE_ASYM 0x0800 376#define ADVERTISE_1000HALF ANAR_X_HD 377#define ADVERTISE_1000FULL ANAR_X_FD 378#define ADVERTISE_10FULL ANAR_10_FD 379#define ADVERTISE_10HALF ANAR_10 380#define ADVERTISE_100FULL ANAR_TX_FD 381#define ADVERTISE_100HALF ANAR_TX 382 383/* Standard PCI Extended Capaibilities definitions */ 384#define PCI_CAP_ID_VPD 0x03 385#define PCI_VPD_ADDR 2 386#define PCI_VPD_ADDR_F 0x8000 387#define PCI_VPD_DATA 4 388 389#define PCI_CAP_ID_EXP 0x10 390#define PCI_EXP_DEVCTL 8 391#define PCI_EXP_DEVCTL_PAYLOAD 0x00e0 392#define PCI_EXP_LNKCTL 16 393#define PCI_EXP_LNKSTA 18 394 395/* 396 * Linux compatibility macros 397 */ 398 399/* Some simple translations */ 400#define __devinit 401#define udelay(x) DELAY(x) 402#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) 403#define le32_to_cpu(x) le32toh(x) 404#define cpu_to_le32(x) htole32(x) 405#define swab32(x) bswap32(x) 406#define simple_strtoul strtoul 407 408 409typedef uint8_t u8; 410typedef uint16_t u16; 411typedef uint32_t u32; 412typedef uint64_t u64; 413 414typedef uint8_t __u8; 415typedef uint16_t __u16; 416typedef uint32_t __u32; 417typedef uint8_t __be8; 418typedef uint16_t __be16; 419typedef uint32_t __be32; 420typedef uint64_t __be64; 421 422 423#if BYTE_ORDER == BIG_ENDIAN 424#define __BIG_ENDIAN_BITFIELD 425#elif BYTE_ORDER == LITTLE_ENDIAN 426#define __LITTLE_ENDIAN_BITFIELD 427#else 428#error "Must set BYTE_ORDER" 429#endif 430 431/* Indicates what features are supported by the interface. */ 432#define SUPPORTED_10baseT_Half (1 << 0) 433#define SUPPORTED_10baseT_Full (1 << 1) 434#define SUPPORTED_100baseT_Half (1 << 2) 435#define SUPPORTED_100baseT_Full (1 << 3) 436#define SUPPORTED_1000baseT_Half (1 << 4) 437#define SUPPORTED_1000baseT_Full (1 << 5) 438#define SUPPORTED_Autoneg (1 << 6) 439#define SUPPORTED_TP (1 << 7) 440#define SUPPORTED_AUI (1 << 8) 441#define SUPPORTED_MII (1 << 9) 442#define SUPPORTED_FIBRE (1 << 10) 443#define SUPPORTED_BNC (1 << 11) 444#define SUPPORTED_10000baseT_Full (1 << 12) 445#define SUPPORTED_Pause (1 << 13) 446#define SUPPORTED_Asym_Pause (1 << 14) 447 448/* Indicates what features are advertised by the interface. */ 449#define ADVERTISED_10baseT_Half (1 << 0) 450#define ADVERTISED_10baseT_Full (1 << 1) 451#define ADVERTISED_100baseT_Half (1 << 2) 452#define ADVERTISED_100baseT_Full (1 << 3) 453#define ADVERTISED_1000baseT_Half (1 << 4) 454#define ADVERTISED_1000baseT_Full (1 << 5) 455#define ADVERTISED_Autoneg (1 << 6) 456#define ADVERTISED_TP (1 << 7) 457#define ADVERTISED_AUI (1 << 8) 458#define ADVERTISED_MII (1 << 9) 459#define ADVERTISED_FIBRE (1 << 10) 460#define ADVERTISED_BNC (1 << 11) 461#define ADVERTISED_10000baseT_Full (1 << 12) 462#define ADVERTISED_Pause (1 << 13) 463#define ADVERTISED_Asym_Pause (1 << 14) 464 465/* Enable or disable autonegotiation. If this is set to enable, 466 * the forced link modes above are completely ignored. 467 */ 468#define AUTONEG_DISABLE 0x00 469#define AUTONEG_ENABLE 0x01 470 471#define SPEED_10 10 472#define SPEED_100 100 473#define SPEED_1000 1000 474#define SPEED_10000 10000 475#define DUPLEX_HALF 0 476#define DUPLEX_FULL 1 477 478#endif 479