17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5c0192a57Sericheng * Common Development and Distribution License (the "License"). 6c0192a57Sericheng * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 226a0b2badSericheng * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #ifndef _SYS_DLD_IMPL_H 277c478bd9Sstevel@tonic-gate #define _SYS_DLD_IMPL_H 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate #include <sys/types.h> 327c478bd9Sstevel@tonic-gate #include <sys/ethernet.h> 337c478bd9Sstevel@tonic-gate #include <sys/stream.h> 347c478bd9Sstevel@tonic-gate #include <sys/dlpi.h> 357c478bd9Sstevel@tonic-gate #include <sys/mac.h> 367c478bd9Sstevel@tonic-gate #include <sys/dls.h> 377c478bd9Sstevel@tonic-gate #include <sys/dld.h> 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate #ifdef __cplusplus 407c478bd9Sstevel@tonic-gate extern "C" { 417c478bd9Sstevel@tonic-gate #endif 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate #define DLD_CONTROL 0x00000001 447c478bd9Sstevel@tonic-gate #define DLD_DLPI 0x00000002 457c478bd9Sstevel@tonic-gate 467c478bd9Sstevel@tonic-gate typedef enum { 477c478bd9Sstevel@tonic-gate DLD_UNITDATA, 487c478bd9Sstevel@tonic-gate DLD_FASTPATH, 497c478bd9Sstevel@tonic-gate DLD_RAW 507c478bd9Sstevel@tonic-gate } dld_str_mode_t; 517c478bd9Sstevel@tonic-gate 527c478bd9Sstevel@tonic-gate typedef enum { 537c478bd9Sstevel@tonic-gate DLD_UNINITIALIZED, 547c478bd9Sstevel@tonic-gate DLD_PASSIVE, 557c478bd9Sstevel@tonic-gate DLD_ACTIVE 567c478bd9Sstevel@tonic-gate } dld_passivestate_t; 577c478bd9Sstevel@tonic-gate 587c478bd9Sstevel@tonic-gate typedef struct dld_str dld_str_t; 597c478bd9Sstevel@tonic-gate 607c478bd9Sstevel@tonic-gate /* 617c478bd9Sstevel@tonic-gate * dld_str_t object definition. 627c478bd9Sstevel@tonic-gate */ 637c478bd9Sstevel@tonic-gate struct dld_str { 647c478bd9Sstevel@tonic-gate /* 65210db224Sericheng * Major number of the device 66210db224Sericheng */ 67210db224Sericheng major_t ds_major; 68210db224Sericheng 69210db224Sericheng /* 707c478bd9Sstevel@tonic-gate * Ephemeral minor number for the object. 717c478bd9Sstevel@tonic-gate */ 727c478bd9Sstevel@tonic-gate minor_t ds_minor; 737c478bd9Sstevel@tonic-gate 747c478bd9Sstevel@tonic-gate /* 75c0192a57Sericheng * PPA number this stream is attached to. 76c0192a57Sericheng */ 77c0192a57Sericheng t_uscalar_t ds_ppa; 78c0192a57Sericheng 79c0192a57Sericheng /* 807c478bd9Sstevel@tonic-gate * Read/write queues for the stream which the object represents. 817c478bd9Sstevel@tonic-gate */ 827c478bd9Sstevel@tonic-gate queue_t *ds_rq; 837c478bd9Sstevel@tonic-gate queue_t *ds_wq; 847c478bd9Sstevel@tonic-gate 857c478bd9Sstevel@tonic-gate /* 86210db224Sericheng * Lock to protect this structure. 87210db224Sericheng */ 88210db224Sericheng krwlock_t ds_lock; 89210db224Sericheng 90210db224Sericheng /* 917c478bd9Sstevel@tonic-gate * Stream is open to DLD_CONTROL (control node) or 927c478bd9Sstevel@tonic-gate * DLD_DLPI (DLS provider) node. 937c478bd9Sstevel@tonic-gate */ 947c478bd9Sstevel@tonic-gate uint_t ds_type; 957c478bd9Sstevel@tonic-gate 967c478bd9Sstevel@tonic-gate /* 977c478bd9Sstevel@tonic-gate * The following fields are only used for DLD_DLPI type objects. 987c478bd9Sstevel@tonic-gate */ 997c478bd9Sstevel@tonic-gate 1007c478bd9Sstevel@tonic-gate /* 1017c478bd9Sstevel@tonic-gate * Current DLPI state. 1027c478bd9Sstevel@tonic-gate */ 1037c478bd9Sstevel@tonic-gate t_uscalar_t ds_dlstate; 1047c478bd9Sstevel@tonic-gate 1057c478bd9Sstevel@tonic-gate /* 106210db224Sericheng * DLPI style 107210db224Sericheng */ 108210db224Sericheng t_uscalar_t ds_style; 109210db224Sericheng 110210db224Sericheng /* 1117c478bd9Sstevel@tonic-gate * Currently bound DLSAP. 1127c478bd9Sstevel@tonic-gate */ 1137c478bd9Sstevel@tonic-gate uint16_t ds_sap; 1147c478bd9Sstevel@tonic-gate 1157c478bd9Sstevel@tonic-gate /* 1167c478bd9Sstevel@tonic-gate * Handle of the data-link channel that is used by this object. 1177c478bd9Sstevel@tonic-gate */ 1187c478bd9Sstevel@tonic-gate dls_channel_t ds_dc; 1197c478bd9Sstevel@tonic-gate 1207c478bd9Sstevel@tonic-gate /* 1217c478bd9Sstevel@tonic-gate * Handle of the MAC that is used by the data-link interface. 1227c478bd9Sstevel@tonic-gate */ 1237c478bd9Sstevel@tonic-gate mac_handle_t ds_mh; 1247c478bd9Sstevel@tonic-gate 1257c478bd9Sstevel@tonic-gate /* 1267c478bd9Sstevel@tonic-gate * VLAN identifier of the data-link interface. 1277c478bd9Sstevel@tonic-gate */ 1287c478bd9Sstevel@tonic-gate uint16_t ds_vid; 1297c478bd9Sstevel@tonic-gate 1307c478bd9Sstevel@tonic-gate /* 1317c478bd9Sstevel@tonic-gate * Promiscuity level information. 1327c478bd9Sstevel@tonic-gate */ 1337c478bd9Sstevel@tonic-gate uint32_t ds_promisc; 1347c478bd9Sstevel@tonic-gate 1357c478bd9Sstevel@tonic-gate /* 1367c478bd9Sstevel@tonic-gate * Immutable information of the MAC which the channel is using. 1377c478bd9Sstevel@tonic-gate */ 1387c478bd9Sstevel@tonic-gate const mac_info_t *ds_mip; 1397c478bd9Sstevel@tonic-gate 1407c478bd9Sstevel@tonic-gate /* 1417c478bd9Sstevel@tonic-gate * Current packet priority. 1427c478bd9Sstevel@tonic-gate */ 1437c478bd9Sstevel@tonic-gate uint_t ds_pri; 1447c478bd9Sstevel@tonic-gate 1457c478bd9Sstevel@tonic-gate /* 1467c478bd9Sstevel@tonic-gate * Handle of our MAC notification callback. 1477c478bd9Sstevel@tonic-gate */ 1487c478bd9Sstevel@tonic-gate mac_notify_handle_t ds_mnh; 1497c478bd9Sstevel@tonic-gate 1507c478bd9Sstevel@tonic-gate /* 1517c478bd9Sstevel@tonic-gate * Set of enabled DL_NOTE... notifications. (See dlpi.h). 1527c478bd9Sstevel@tonic-gate */ 1537c478bd9Sstevel@tonic-gate uint32_t ds_notifications; 1547c478bd9Sstevel@tonic-gate 1557c478bd9Sstevel@tonic-gate /* 1567c478bd9Sstevel@tonic-gate * Cached MAC unicast addresses. 1577c478bd9Sstevel@tonic-gate */ 158ba2e4443Sseb uint8_t ds_fact_addr[MAXMACADDRLEN]; 159ba2e4443Sseb uint8_t ds_curr_addr[MAXMACADDRLEN]; 1607c478bd9Sstevel@tonic-gate 1617c478bd9Sstevel@tonic-gate /* 1627c478bd9Sstevel@tonic-gate * Mode: unitdata, fast-path or raw. 1637c478bd9Sstevel@tonic-gate */ 1647c478bd9Sstevel@tonic-gate dld_str_mode_t ds_mode; 1657c478bd9Sstevel@tonic-gate 1667c478bd9Sstevel@tonic-gate /* 1677c478bd9Sstevel@tonic-gate * IP polling is operational if this flag is set. 1687c478bd9Sstevel@tonic-gate */ 1697c478bd9Sstevel@tonic-gate boolean_t ds_polling; 1704b46d1efSkrgopi boolean_t ds_soft_ring; 1717c478bd9Sstevel@tonic-gate 1727c478bd9Sstevel@tonic-gate /* 1737c478bd9Sstevel@tonic-gate * State of DLPI user: may be active (regular network layer), 1747c478bd9Sstevel@tonic-gate * passive (snoop-like monitoring), or unknown (not yet 1757c478bd9Sstevel@tonic-gate * determined). 1767c478bd9Sstevel@tonic-gate */ 1777c478bd9Sstevel@tonic-gate dld_passivestate_t ds_passivestate; 1787c478bd9Sstevel@tonic-gate 1797c478bd9Sstevel@tonic-gate /* 180210db224Sericheng * Dummy mblk used for flow-control. 1817c478bd9Sstevel@tonic-gate */ 182210db224Sericheng mblk_t *ds_tx_flow_mp; 183210db224Sericheng 184210db224Sericheng /* 185210db224Sericheng * Internal transmit queue and its parameters. 186210db224Sericheng */ 187210db224Sericheng kmutex_t ds_tx_list_lock; 188210db224Sericheng mblk_t *ds_tx_list_head; 189210db224Sericheng mblk_t *ds_tx_list_tail; 190210db224Sericheng uint_t ds_tx_cnt; 191210db224Sericheng uint_t ds_tx_msgcnt; 192210db224Sericheng boolean_t ds_tx_qbusy; 193210db224Sericheng 194210db224Sericheng /* 195210db224Sericheng * Number of threads currently in dld. If there is a pending 1966a0b2badSericheng * request, it is placed in ds_pending_req and the operation 1976a0b2badSericheng * will finish when dld becomes single-threaded. 198210db224Sericheng */ 199210db224Sericheng kmutex_t ds_thr_lock; 200210db224Sericheng uint_t ds_thr; 2016a0b2badSericheng uint_t ds_pending_cnt; 2026a0b2badSericheng mblk_t *ds_pending_req; 2036a0b2badSericheng task_func_t *ds_pending_op; 2046a0b2badSericheng kcondvar_t ds_pending_cv; 2057c478bd9Sstevel@tonic-gate } dld_str; 2067c478bd9Sstevel@tonic-gate 2077c478bd9Sstevel@tonic-gate /* 2087c478bd9Sstevel@tonic-gate * dld_str.c module. 2097c478bd9Sstevel@tonic-gate */ 2107c478bd9Sstevel@tonic-gate 2117c478bd9Sstevel@tonic-gate extern void dld_str_init(void); 2127c478bd9Sstevel@tonic-gate extern int dld_str_fini(void); 213210db224Sericheng extern dld_str_t *dld_str_create(queue_t *, uint_t, major_t, 214210db224Sericheng t_uscalar_t); 2157c478bd9Sstevel@tonic-gate extern void dld_str_destroy(dld_str_t *); 216210db224Sericheng extern int dld_str_attach(dld_str_t *, t_uscalar_t); 2177c478bd9Sstevel@tonic-gate extern void dld_str_detach(dld_str_t *); 2187c478bd9Sstevel@tonic-gate extern void dld_str_rx_raw(void *, mac_resource_handle_t, 219*605445d5Sdg199075 mblk_t *, mac_header_info_t *); 2207c478bd9Sstevel@tonic-gate extern void dld_str_rx_fastpath(void *, mac_resource_handle_t, 221*605445d5Sdg199075 mblk_t *, mac_header_info_t *); 2227c478bd9Sstevel@tonic-gate extern void dld_str_rx_unitdata(void *, mac_resource_handle_t, 223*605445d5Sdg199075 mblk_t *, mac_header_info_t *); 224210db224Sericheng extern void dld_tx_flush(dld_str_t *); 225210db224Sericheng extern void dld_tx_enqueue(dld_str_t *, mblk_t *, boolean_t); 2267c478bd9Sstevel@tonic-gate extern void dld_str_notify_ind(dld_str_t *); 227210db224Sericheng extern void str_mdata_fastpath_put(dld_str_t *, mblk_t *); 228*605445d5Sdg199075 extern void dld_tx_single(dld_str_t *, mblk_t *); 229210db224Sericheng 2307c478bd9Sstevel@tonic-gate /* 2317c478bd9Sstevel@tonic-gate * dld_proto.c 2327c478bd9Sstevel@tonic-gate */ 2337c478bd9Sstevel@tonic-gate extern void dld_proto(dld_str_t *, mblk_t *); 234210db224Sericheng extern void dld_finish_pending_ops(dld_str_t *); 2357c478bd9Sstevel@tonic-gate 2367c478bd9Sstevel@tonic-gate /* 2377c478bd9Sstevel@tonic-gate * Options: there should be a separate bit defined here for each 2387c478bd9Sstevel@tonic-gate * DLD_PROP... defined in dld.h. 2397c478bd9Sstevel@tonic-gate */ 240210db224Sericheng #define DLD_OPT_NO_FASTPATH 0x00000001 241210db224Sericheng #define DLD_OPT_NO_POLL 0x00000002 242210db224Sericheng #define DLD_OPT_NO_ZEROCOPY 0x00000004 2437c478bd9Sstevel@tonic-gate 2447c478bd9Sstevel@tonic-gate extern uint32_t dld_opt; 2457c478bd9Sstevel@tonic-gate 2467c478bd9Sstevel@tonic-gate /* 2477c478bd9Sstevel@tonic-gate * Useful macros. 2487c478bd9Sstevel@tonic-gate */ 2497c478bd9Sstevel@tonic-gate 2507c478bd9Sstevel@tonic-gate #define IMPLY(p, c) (!(p) || (c)) 2517c478bd9Sstevel@tonic-gate 252210db224Sericheng #define DLD_ENTER(dsp) { \ 253210db224Sericheng mutex_enter(&dsp->ds_thr_lock); \ 254210db224Sericheng ++dsp->ds_thr; \ 255210db224Sericheng ASSERT(dsp->ds_thr != 0); \ 256210db224Sericheng mutex_exit(&dsp->ds_thr_lock); \ 257210db224Sericheng } 258210db224Sericheng 259210db224Sericheng #define DLD_EXIT(dsp) { \ 260210db224Sericheng mutex_enter(&dsp->ds_thr_lock); \ 261210db224Sericheng ASSERT(dsp->ds_thr > 0); \ 2626a0b2badSericheng if (--dsp->ds_thr == 0 && dsp->ds_pending_req != NULL) \ 263210db224Sericheng dld_finish_pending_ops(dsp); \ 264210db224Sericheng else \ 265210db224Sericheng mutex_exit(&dsp->ds_thr_lock); \ 266210db224Sericheng } 267210db224Sericheng 2686a0b2badSericheng #define DLD_WAKEUP(dsp) { \ 2696a0b2badSericheng mutex_enter(&dsp->ds_thr_lock); \ 2706a0b2badSericheng ASSERT(dsp->ds_pending_cnt > 0); \ 2716a0b2badSericheng if (--dsp->ds_pending_cnt == 0) \ 2726a0b2badSericheng cv_signal(&dsp->ds_pending_cv); \ 2736a0b2badSericheng mutex_exit(&dsp->ds_thr_lock); \ 2746a0b2badSericheng } 2756a0b2badSericheng 276210db224Sericheng #ifdef DEBUG 277210db224Sericheng #define DLD_DBG cmn_err 278210db224Sericheng #else 279210db224Sericheng #define DLD_DBG if (0) cmn_err 280210db224Sericheng #endif 281210db224Sericheng 2827c478bd9Sstevel@tonic-gate #ifdef __cplusplus 2837c478bd9Sstevel@tonic-gate } 2847c478bd9Sstevel@tonic-gate #endif 2857c478bd9Sstevel@tonic-gate 2867c478bd9Sstevel@tonic-gate #endif /* _SYS_DLD_IMPL_H */ 287