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 54ab75253Smrj * Common Development and Distribution License (the "License"). 64ab75253Smrj * 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 */ 214ab75253Smrj 227c478bd9Sstevel@tonic-gate /* 23*afcdc791Scth * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #include <sys/scsi/scsi.h> 307c478bd9Sstevel@tonic-gate #include <sys/vtrace.h> 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate #define A_TO_TRAN(ap) ((ap)->a_hba_tran) 347c478bd9Sstevel@tonic-gate #define P_TO_TRAN(pkt) ((pkt)->pkt_address.a_hba_tran) 357c478bd9Sstevel@tonic-gate #define P_TO_ADDR(pkt) (&((pkt)->pkt_address)) 367c478bd9Sstevel@tonic-gate 377c478bd9Sstevel@tonic-gate /* 387c478bd9Sstevel@tonic-gate * Callback id 397c478bd9Sstevel@tonic-gate */ 407c478bd9Sstevel@tonic-gate uintptr_t scsi_callback_id = 0; 417c478bd9Sstevel@tonic-gate 424ab75253Smrj extern ddi_dma_attr_t scsi_alloc_attr; 437c478bd9Sstevel@tonic-gate 447c478bd9Sstevel@tonic-gate struct buf * 457c478bd9Sstevel@tonic-gate scsi_alloc_consistent_buf(struct scsi_address *ap, 467c478bd9Sstevel@tonic-gate struct buf *in_bp, size_t datalen, uint_t bflags, 477c478bd9Sstevel@tonic-gate int (*callback)(caddr_t), caddr_t callback_arg) 487c478bd9Sstevel@tonic-gate { 497c478bd9Sstevel@tonic-gate dev_info_t *pdip; 507c478bd9Sstevel@tonic-gate struct buf *bp; 517c478bd9Sstevel@tonic-gate int kmflag; 524ab75253Smrj size_t rlen; 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate TRACE_0(TR_FAC_SCSI_RES, TR_SCSI_ALLOC_CONSISTENT_BUF_START, 557c478bd9Sstevel@tonic-gate "scsi_alloc_consistent_buf_start"); 567c478bd9Sstevel@tonic-gate 577c478bd9Sstevel@tonic-gate if (!in_bp) { 587c478bd9Sstevel@tonic-gate kmflag = (callback == SLEEP_FUNC) ? KM_SLEEP : KM_NOSLEEP; 597c478bd9Sstevel@tonic-gate if ((bp = getrbuf(kmflag)) == NULL) { 607c478bd9Sstevel@tonic-gate goto no_resource; 617c478bd9Sstevel@tonic-gate } 627c478bd9Sstevel@tonic-gate } else { 637c478bd9Sstevel@tonic-gate bp = in_bp; 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate /* we are establishing a new buffer memory association */ 667c478bd9Sstevel@tonic-gate bp->b_flags &= ~(B_PAGEIO | B_PHYS | B_REMAPPED | B_SHADOW); 677c478bd9Sstevel@tonic-gate bp->b_proc = NULL; 687c478bd9Sstevel@tonic-gate bp->b_pages = NULL; 697c478bd9Sstevel@tonic-gate bp->b_shadow = NULL; 707c478bd9Sstevel@tonic-gate } 717c478bd9Sstevel@tonic-gate 727c478bd9Sstevel@tonic-gate /* limit bits that can be set by bflags argument */ 737c478bd9Sstevel@tonic-gate ASSERT(!(bflags & ~(B_READ | B_WRITE))); 747c478bd9Sstevel@tonic-gate bflags &= (B_READ | B_WRITE); 757c478bd9Sstevel@tonic-gate bp->b_un.b_addr = 0; 767c478bd9Sstevel@tonic-gate 777c478bd9Sstevel@tonic-gate if (datalen) { 787c478bd9Sstevel@tonic-gate pdip = (A_TO_TRAN(ap))->tran_hba_dip; 797c478bd9Sstevel@tonic-gate 804ab75253Smrj /* 814ab75253Smrj * use i_ddi_mem_alloc() for now until we have an interface to 824ab75253Smrj * allocate memory for DMA which doesn't require a DMA handle. 834ab75253Smrj * ddi_iopb_alloc() is obsolete and we want more flexibility in 844ab75253Smrj * controlling the DMA address constraints. 854ab75253Smrj */ 864ab75253Smrj while (i_ddi_mem_alloc(pdip, &scsi_alloc_attr, datalen, 874ab75253Smrj ((callback == SLEEP_FUNC) ? 1 : 0), 0, NULL, 884ab75253Smrj &bp->b_un.b_addr, &rlen, NULL) != DDI_SUCCESS) { 897c478bd9Sstevel@tonic-gate if (callback == SLEEP_FUNC) { 907c478bd9Sstevel@tonic-gate delay(drv_usectohz(10000)); 917c478bd9Sstevel@tonic-gate } else { 927c478bd9Sstevel@tonic-gate if (!in_bp) 937c478bd9Sstevel@tonic-gate freerbuf(bp); 947c478bd9Sstevel@tonic-gate goto no_resource; 957c478bd9Sstevel@tonic-gate } 967c478bd9Sstevel@tonic-gate } 977c478bd9Sstevel@tonic-gate bp->b_flags |= bflags; 987c478bd9Sstevel@tonic-gate } 997c478bd9Sstevel@tonic-gate bp->b_bcount = datalen; 1007c478bd9Sstevel@tonic-gate bp->b_resid = 0; 1017c478bd9Sstevel@tonic-gate 1027c478bd9Sstevel@tonic-gate TRACE_0(TR_FAC_SCSI_RES, TR_SCSI_ALLOC_CONSISTENT_BUF_END, 1037c478bd9Sstevel@tonic-gate "scsi_alloc_consistent_buf_end"); 1047c478bd9Sstevel@tonic-gate return (bp); 1057c478bd9Sstevel@tonic-gate 1067c478bd9Sstevel@tonic-gate no_resource: 1077c478bd9Sstevel@tonic-gate 1087c478bd9Sstevel@tonic-gate if (callback != NULL_FUNC && callback != SLEEP_FUNC) { 1097c478bd9Sstevel@tonic-gate ddi_set_callback(callback, callback_arg, 1107c478bd9Sstevel@tonic-gate &scsi_callback_id); 1117c478bd9Sstevel@tonic-gate } 1127c478bd9Sstevel@tonic-gate TRACE_0(TR_FAC_SCSI_RES, 1137c478bd9Sstevel@tonic-gate TR_SCSI_ALLOC_CONSISTENT_BUF_RETURN1_END, 1147c478bd9Sstevel@tonic-gate "scsi_alloc_consistent_buf_end (return1)"); 1157c478bd9Sstevel@tonic-gate return (NULL); 1167c478bd9Sstevel@tonic-gate } 1177c478bd9Sstevel@tonic-gate 1187c478bd9Sstevel@tonic-gate void 1197c478bd9Sstevel@tonic-gate scsi_free_consistent_buf(struct buf *bp) 1207c478bd9Sstevel@tonic-gate { 1217c478bd9Sstevel@tonic-gate TRACE_0(TR_FAC_SCSI_RES, TR_SCSI_FREE_CONSISTENT_BUF_START, 1227c478bd9Sstevel@tonic-gate "scsi_free_consistent_buf_start"); 1237c478bd9Sstevel@tonic-gate if (!bp) 1247c478bd9Sstevel@tonic-gate return; 1257c478bd9Sstevel@tonic-gate if (bp->b_un.b_addr) 1267b93957cSeota i_ddi_mem_free((caddr_t)bp->b_un.b_addr, NULL); 1277c478bd9Sstevel@tonic-gate freerbuf(bp); 1287c478bd9Sstevel@tonic-gate if (scsi_callback_id != 0) { 1297c478bd9Sstevel@tonic-gate ddi_run_callback(&scsi_callback_id); 1307c478bd9Sstevel@tonic-gate } 1317c478bd9Sstevel@tonic-gate TRACE_0(TR_FAC_SCSI_RES, TR_SCSI_FREE_CONSISTENT_BUF_END, 1327c478bd9Sstevel@tonic-gate "scsi_free_consistent_buf_end"); 1337c478bd9Sstevel@tonic-gate } 1347c478bd9Sstevel@tonic-gate 1358faf39b2Staylor void 1368faf39b2Staylor scsi_dmafree_attr(struct scsi_pkt *pktp) 1378faf39b2Staylor { 1388faf39b2Staylor struct scsi_pkt_cache_wrapper *pktw = 1398faf39b2Staylor (struct scsi_pkt_cache_wrapper *)pktp; 1408faf39b2Staylor 1418faf39b2Staylor if (pktw->pcw_flags & PCW_BOUND) { 1428faf39b2Staylor if (ddi_dma_unbind_handle(pktp->pkt_handle) != 1438faf39b2Staylor DDI_SUCCESS) 1448faf39b2Staylor cmn_err(CE_WARN, "scsi_dmafree_attr: " 1458faf39b2Staylor "unbind handle failed"); 1468faf39b2Staylor pktw->pcw_flags &= ~PCW_BOUND; 1478faf39b2Staylor } 1488faf39b2Staylor pktp->pkt_numcookies = 0; 1498faf39b2Staylor } 1508faf39b2Staylor 1518faf39b2Staylor struct buf * 1528faf39b2Staylor scsi_pkt2bp(struct scsi_pkt *pkt) 1538faf39b2Staylor { 1548faf39b2Staylor return (((struct scsi_pkt_cache_wrapper *)pkt)->pcw_bp); 1558faf39b2Staylor } 1568faf39b2Staylor 1578faf39b2Staylor int 1588faf39b2Staylor scsi_dma_buf_bind_attr(struct scsi_pkt_cache_wrapper *pktw, 1598faf39b2Staylor struct buf *bp, 1608faf39b2Staylor int dma_flags, 1618faf39b2Staylor int (*callback)(), 1628faf39b2Staylor caddr_t arg) 1638faf39b2Staylor { 1648faf39b2Staylor struct scsi_pkt *pktp = &(pktw->pcw_pkt); 1658faf39b2Staylor int status; 1668faf39b2Staylor 1678faf39b2Staylor /* 1688faf39b2Staylor * First time, need to establish the handle. 1698faf39b2Staylor */ 1708faf39b2Staylor 1718faf39b2Staylor ASSERT(pktp->pkt_numcookies == 0); 1728faf39b2Staylor ASSERT(pktw->pcw_totalwin == 0); 1738faf39b2Staylor 1748faf39b2Staylor status = ddi_dma_buf_bind_handle(pktp->pkt_handle, bp, dma_flags, 1758faf39b2Staylor callback, arg, &pktw->pcw_cookie, 1768faf39b2Staylor &pktp->pkt_numcookies); 1778faf39b2Staylor 1788faf39b2Staylor switch (status) { 1798faf39b2Staylor case DDI_DMA_MAPPED: 1808faf39b2Staylor pktw->pcw_totalwin = 1; 1818faf39b2Staylor break; 1828faf39b2Staylor 1838faf39b2Staylor case DDI_DMA_PARTIAL_MAP: 1848faf39b2Staylor /* enable first call to ddi_dma_getwin */ 1858faf39b2Staylor if (ddi_dma_numwin(pktp->pkt_handle, 1868faf39b2Staylor &pktw->pcw_totalwin) != DDI_SUCCESS) { 1878faf39b2Staylor bp->b_error = 0; 1888faf39b2Staylor return (0); 1898faf39b2Staylor } 1908faf39b2Staylor break; 1918faf39b2Staylor 1928faf39b2Staylor case DDI_DMA_NORESOURCES: 1938faf39b2Staylor bp->b_error = 0; 1948faf39b2Staylor return (0); 1958faf39b2Staylor 1968faf39b2Staylor case DDI_DMA_TOOBIG: 1978faf39b2Staylor bioerror(bp, EINVAL); 1988faf39b2Staylor return (0); 1998faf39b2Staylor 2008faf39b2Staylor case DDI_DMA_NOMAPPING: 2018faf39b2Staylor case DDI_DMA_INUSE: 2028faf39b2Staylor default: 2038faf39b2Staylor bioerror(bp, EFAULT); 2048faf39b2Staylor return (0); 2058faf39b2Staylor } 2068faf39b2Staylor 2078faf39b2Staylor /* initialize the loop controls for scsi_dmaget_attr() */ 2088faf39b2Staylor pktw->pcw_curwin = 0; 2098faf39b2Staylor pktw->pcw_total_xfer = 0; 2108faf39b2Staylor pktp->pkt_dma_flags = dma_flags; 2118faf39b2Staylor return (1); 2128faf39b2Staylor } 2138faf39b2Staylor 2148faf39b2Staylor #if defined(_DMA_USES_PHYSADDR) 2158faf39b2Staylor int 2168faf39b2Staylor scsi_dmaget_attr(struct scsi_pkt_cache_wrapper *pktw) 2178faf39b2Staylor { 2188faf39b2Staylor struct scsi_pkt *pktp = &(pktw->pcw_pkt); 2198faf39b2Staylor 2208faf39b2Staylor int status; 2218faf39b2Staylor int num_segs = 0; 2228faf39b2Staylor ddi_dma_impl_t *hp = (ddi_dma_impl_t *)pktp->pkt_handle; 2238faf39b2Staylor ddi_dma_cookie_t *cp; 2248faf39b2Staylor 2258faf39b2Staylor if (pktw->pcw_curwin != 0) { 2268faf39b2Staylor ddi_dma_cookie_t cookie; 2278faf39b2Staylor 2288faf39b2Staylor /* 2298faf39b2Staylor * start the next window, and get its first cookie 2308faf39b2Staylor */ 2318faf39b2Staylor status = ddi_dma_getwin(pktp->pkt_handle, 2328faf39b2Staylor pktw->pcw_curwin, &pktp->pkt_dma_offset, 2338faf39b2Staylor &pktp->pkt_dma_len, &cookie, 2348faf39b2Staylor &pktp->pkt_numcookies); 2358faf39b2Staylor if (status != DDI_SUCCESS) 2368faf39b2Staylor return (0); 2378faf39b2Staylor } 2388faf39b2Staylor 2398faf39b2Staylor /* 2408faf39b2Staylor * start the Scatter/Gather loop 2418faf39b2Staylor */ 2428faf39b2Staylor cp = hp->dmai_cookie - 1; 2438faf39b2Staylor pktp->pkt_dma_len = 0; 2448faf39b2Staylor for (;;) { 2458faf39b2Staylor 2468faf39b2Staylor /* take care of the loop-bookkeeping */ 2478faf39b2Staylor pktp->pkt_dma_len += cp->dmac_size; 2488faf39b2Staylor num_segs++; 2498faf39b2Staylor /* 2508faf39b2Staylor * if this was the last cookie in the current window 2518faf39b2Staylor * set the loop controls start the next window and 2528faf39b2Staylor * exit so the HBA can do this partial transfer 2538faf39b2Staylor */ 2548faf39b2Staylor if (num_segs >= pktp->pkt_numcookies) { 2558faf39b2Staylor pktw->pcw_curwin++; 2568faf39b2Staylor break; 2578faf39b2Staylor } 2588faf39b2Staylor 2598faf39b2Staylor cp++; 2608faf39b2Staylor } 2618faf39b2Staylor pktw->pcw_total_xfer += pktp->pkt_dma_len; 2628faf39b2Staylor pktp->pkt_cookies = hp->dmai_cookie - 1; 2638faf39b2Staylor hp->dmai_cookie = cp; 2648faf39b2Staylor 2658faf39b2Staylor return (1); 2668faf39b2Staylor } 2678faf39b2Staylor #endif 2688faf39b2Staylor 269cab28b2dStaylor void scsi_free_cache_pkt(struct scsi_address *, struct scsi_pkt *); 270cab28b2dStaylor 271cab28b2dStaylor struct scsi_pkt * 272cab28b2dStaylor scsi_init_cache_pkt(struct scsi_address *ap, struct scsi_pkt *in_pktp, 273cab28b2dStaylor struct buf *bp, int cmdlen, int statuslen, int pplen, 274cab28b2dStaylor int flags, int (*callback)(caddr_t), caddr_t callback_arg) 275cab28b2dStaylor { 276cab28b2dStaylor struct scsi_pkt_cache_wrapper *pktw; 277cab28b2dStaylor scsi_hba_tran_t *tranp = ap->a_hba_tran; 278cab28b2dStaylor int (*func)(caddr_t); 279cab28b2dStaylor 280cab28b2dStaylor func = (callback == SLEEP_FUNC) ? SLEEP_FUNC : NULL_FUNC; 281cab28b2dStaylor 282cab28b2dStaylor if (in_pktp == NULL) { 283cab28b2dStaylor int kf; 284cab28b2dStaylor 285cab28b2dStaylor if (callback == SLEEP_FUNC) 286cab28b2dStaylor kf = KM_SLEEP; 287cab28b2dStaylor else 288cab28b2dStaylor kf = KM_NOSLEEP; 289cab28b2dStaylor pktw = kmem_cache_alloc(tranp->tran_pkt_cache_ptr, 290cab28b2dStaylor kf); 291cab28b2dStaylor if (pktw == NULL) 292cab28b2dStaylor goto fail1; 293cab28b2dStaylor 2948faf39b2Staylor pktw->pcw_flags = 0; 295cab28b2dStaylor in_pktp = &(pktw->pcw_pkt); 2968faf39b2Staylor in_pktp->pkt_address = *ap; 297cab28b2dStaylor /* 298830363f4Staylor * target drivers should initialize pkt_comp and 299830363f4Staylor * pkt_time, but sometimes they don't so initialize 300830363f4Staylor * them here to be safe. 301cab28b2dStaylor */ 302cab28b2dStaylor in_pktp->pkt_address = *ap; 303830363f4Staylor in_pktp->pkt_flags = 0; 304830363f4Staylor in_pktp->pkt_time = 0; 305cab28b2dStaylor in_pktp->pkt_resid = 0; 306cab28b2dStaylor in_pktp->pkt_state = 0; 307cab28b2dStaylor in_pktp->pkt_statistics = 0; 308cab28b2dStaylor in_pktp->pkt_reason = 0; 3098faf39b2Staylor in_pktp->pkt_dma_offset = 0; 3108faf39b2Staylor in_pktp->pkt_dma_len = 0; 3118faf39b2Staylor in_pktp->pkt_dma_flags = 0; 3128faf39b2Staylor ASSERT(in_pktp->pkt_numcookies == 0); 3138faf39b2Staylor pktw->pcw_curwin = 0; 3148faf39b2Staylor pktw->pcw_totalwin = 0; 3158faf39b2Staylor pktw->pcw_total_xfer = 0; 316cab28b2dStaylor 317cab28b2dStaylor in_pktp->pkt_cdblen = cmdlen; 318cab28b2dStaylor if ((tranp->tran_hba_flags & SCSI_HBA_TRAN_CDB) && 319cab28b2dStaylor (cmdlen > DEFAULT_CDBLEN)) { 3208faf39b2Staylor pktw->pcw_flags |= PCW_NEED_EXT_CDB; 321830363f4Staylor in_pktp->pkt_cdbp = kmem_alloc(cmdlen, kf); 322cab28b2dStaylor if (in_pktp->pkt_cdbp == NULL) 323cab28b2dStaylor goto fail2; 324cab28b2dStaylor } 325cab28b2dStaylor in_pktp->pkt_tgtlen = pplen; 326cab28b2dStaylor if (pplen > DEFAULT_PRIVLEN) { 3278faf39b2Staylor pktw->pcw_flags |= PCW_NEED_EXT_TGT; 328830363f4Staylor in_pktp->pkt_private = kmem_alloc(pplen, kf); 329cab28b2dStaylor if (in_pktp->pkt_private == NULL) 330cab28b2dStaylor goto fail3; 331cab28b2dStaylor } 332cab28b2dStaylor in_pktp->pkt_scblen = statuslen; 333cab28b2dStaylor if ((tranp->tran_hba_flags & SCSI_HBA_TRAN_SCB) && 334cab28b2dStaylor (statuslen > DEFAULT_SCBLEN)) { 3358faf39b2Staylor pktw->pcw_flags |= PCW_NEED_EXT_SCB; 336830363f4Staylor in_pktp->pkt_scbp = kmem_alloc(statuslen, kf); 337cab28b2dStaylor if (in_pktp->pkt_scbp == NULL) 338cab28b2dStaylor goto fail4; 339cab28b2dStaylor } 340cab28b2dStaylor if ((*tranp->tran_setup_pkt) (in_pktp, 341cab28b2dStaylor func, NULL) == -1) { 342cab28b2dStaylor goto fail5; 343cab28b2dStaylor } 344830363f4Staylor if (cmdlen) 345830363f4Staylor bzero((void *)in_pktp->pkt_cdbp, cmdlen); 346830363f4Staylor if (pplen) 347830363f4Staylor bzero((void *)in_pktp->pkt_private, pplen); 348830363f4Staylor if (statuslen) 349830363f4Staylor bzero((void *)in_pktp->pkt_scbp, statuslen); 3508faf39b2Staylor } else 3518faf39b2Staylor pktw = (struct scsi_pkt_cache_wrapper *)in_pktp; 3528faf39b2Staylor 353cab28b2dStaylor if (bp && bp->b_bcount) { 3548faf39b2Staylor 3558faf39b2Staylor int dma_flags = 0; 3568faf39b2Staylor 3578faf39b2Staylor /* 3588faf39b2Staylor * we need to transfer data, so we alloc dma resources 3598faf39b2Staylor * for this packet 3608faf39b2Staylor */ 3618faf39b2Staylor /*CONSTCOND*/ 3628faf39b2Staylor ASSERT(SLEEP_FUNC == DDI_DMA_SLEEP); 3638faf39b2Staylor /*CONSTCOND*/ 3648faf39b2Staylor ASSERT(NULL_FUNC == DDI_DMA_DONTWAIT); 3658faf39b2Staylor 3668faf39b2Staylor #if defined(_DMA_USES_PHYSADDR) 3678faf39b2Staylor /* 3688faf39b2Staylor * with an IOMMU we map everything, so we don't 3698faf39b2Staylor * need to bother with this 3708faf39b2Staylor */ 3718faf39b2Staylor if (tranp->tran_dma_attr.dma_attr_granular != 3728faf39b2Staylor pktw->pcw_granular) { 3738faf39b2Staylor 3748faf39b2Staylor ddi_dma_free_handle(&in_pktp->pkt_handle); 3758faf39b2Staylor if (ddi_dma_alloc_handle(tranp->tran_hba_dip, 3768faf39b2Staylor &tranp->tran_dma_attr, 3778faf39b2Staylor func, NULL, 3788faf39b2Staylor &in_pktp->pkt_handle) != DDI_SUCCESS) { 3798faf39b2Staylor 3808faf39b2Staylor in_pktp->pkt_handle = NULL; 3818faf39b2Staylor return (NULL); 3828faf39b2Staylor } 3838faf39b2Staylor pktw->pcw_granular = 3848faf39b2Staylor tranp->tran_dma_attr.dma_attr_granular; 385cab28b2dStaylor } 3868faf39b2Staylor #endif 3878faf39b2Staylor 3888faf39b2Staylor if (in_pktp->pkt_numcookies == 0) { 3898faf39b2Staylor pktw->pcw_bp = bp; 3908faf39b2Staylor /* 3918faf39b2Staylor * set dma flags; the "read" case must be first 3928faf39b2Staylor * since B_WRITE isn't always be set for writes. 3938faf39b2Staylor */ 3948faf39b2Staylor if (bp->b_flags & B_READ) { 3958faf39b2Staylor dma_flags |= DDI_DMA_READ; 3968faf39b2Staylor } else { 3978faf39b2Staylor dma_flags |= DDI_DMA_WRITE; 3988faf39b2Staylor } 3998faf39b2Staylor if (flags & PKT_CONSISTENT) 4008faf39b2Staylor dma_flags |= DDI_DMA_CONSISTENT; 4018faf39b2Staylor if (flags & PKT_DMA_PARTIAL) 4028faf39b2Staylor dma_flags |= DDI_DMA_PARTIAL; 4038faf39b2Staylor 4048faf39b2Staylor #if defined(__sparc) 4058faf39b2Staylor /* 4068faf39b2Staylor * workaround for byte hole issue on psycho and 4078faf39b2Staylor * schizo pre 2.1 4088faf39b2Staylor */ 4098faf39b2Staylor if ((bp->b_flags & B_READ) && ((bp->b_flags & 4108faf39b2Staylor (B_PAGEIO|B_REMAPPED)) != B_PAGEIO) && 4118faf39b2Staylor (((uintptr_t)bp->b_un.b_addr & 0x7) || 4128faf39b2Staylor ((uintptr_t)bp->b_bcount & 0x7))) { 4138faf39b2Staylor dma_flags |= DDI_DMA_CONSISTENT; 4148faf39b2Staylor } 4158faf39b2Staylor #endif 4168faf39b2Staylor if (!scsi_dma_buf_bind_attr(pktw, bp, 4178faf39b2Staylor dma_flags, callback, callback_arg)) { 4188faf39b2Staylor return (NULL); 4198faf39b2Staylor } else { 4208faf39b2Staylor pktw->pcw_flags |= PCW_BOUND; 4218faf39b2Staylor } 4228faf39b2Staylor } 4238faf39b2Staylor 4248faf39b2Staylor #if defined(_DMA_USES_PHYSADDR) 4258faf39b2Staylor if (!scsi_dmaget_attr(pktw)) { 4268faf39b2Staylor scsi_dmafree_attr(in_pktp); 4278faf39b2Staylor goto fail5; 4288faf39b2Staylor } 4298faf39b2Staylor #else 4308faf39b2Staylor in_pktp->pkt_cookies = &pktw->pcw_cookie; 4318faf39b2Staylor in_pktp->pkt_dma_len = pktw->pcw_cookie.dmac_size; 4328faf39b2Staylor pktw->pcw_total_xfer += in_pktp->pkt_dma_len; 4338faf39b2Staylor #endif 4348faf39b2Staylor ASSERT(in_pktp->pkt_numcookies <= 4358faf39b2Staylor tranp->tran_dma_attr.dma_attr_sgllen); 4368faf39b2Staylor ASSERT(pktw->pcw_total_xfer <= bp->b_bcount); 4378faf39b2Staylor in_pktp->pkt_resid = bp->b_bcount - 4388faf39b2Staylor pktw->pcw_total_xfer; 4398faf39b2Staylor 4408faf39b2Staylor ASSERT((in_pktp->pkt_resid % pktw->pcw_granular) == 4418faf39b2Staylor 0); 4428faf39b2Staylor } else { 4438faf39b2Staylor /* !bp or no b_bcount */ 4448faf39b2Staylor in_pktp->pkt_resid = 0; 445cab28b2dStaylor } 446cab28b2dStaylor return (in_pktp); 447cab28b2dStaylor 448cab28b2dStaylor fail5: 4498faf39b2Staylor if (pktw->pcw_flags & PCW_NEED_EXT_SCB) { 450cab28b2dStaylor kmem_free(in_pktp->pkt_scbp, statuslen); 451cab28b2dStaylor in_pktp->pkt_scbp = (opaque_t)((char *)in_pktp + 452cab28b2dStaylor tranp->tran_hba_len + DEFAULT_PRIVLEN + 453cab28b2dStaylor sizeof (struct scsi_pkt)); 454cab28b2dStaylor if ((A_TO_TRAN(ap))->tran_hba_flags & SCSI_HBA_TRAN_CDB) 455cab28b2dStaylor in_pktp->pkt_scbp = (opaque_t)((in_pktp->pkt_scbp) + 456cab28b2dStaylor DEFAULT_CDBLEN); 457cab28b2dStaylor in_pktp->pkt_scblen = 0; 458cab28b2dStaylor } 459cab28b2dStaylor fail4: 4608faf39b2Staylor if (pktw->pcw_flags & PCW_NEED_EXT_TGT) { 461cab28b2dStaylor kmem_free(in_pktp->pkt_private, pplen); 462cab28b2dStaylor in_pktp->pkt_tgtlen = 0; 463cab28b2dStaylor in_pktp->pkt_private = NULL; 464cab28b2dStaylor } 465cab28b2dStaylor fail3: 4668faf39b2Staylor if (pktw->pcw_flags & PCW_NEED_EXT_CDB) { 467cab28b2dStaylor kmem_free(in_pktp->pkt_cdbp, cmdlen); 468cab28b2dStaylor in_pktp->pkt_cdbp = (opaque_t)((char *)in_pktp + 469cab28b2dStaylor tranp->tran_hba_len + 470cab28b2dStaylor sizeof (struct scsi_pkt)); 471cab28b2dStaylor in_pktp->pkt_cdblen = 0; 472cab28b2dStaylor } 4738faf39b2Staylor pktw->pcw_flags &= 4748faf39b2Staylor ~(PCW_NEED_EXT_CDB|PCW_NEED_EXT_TGT|PCW_NEED_EXT_SCB); 475cab28b2dStaylor fail2: 476cab28b2dStaylor kmem_cache_free(tranp->tran_pkt_cache_ptr, pktw); 477cab28b2dStaylor fail1: 478cab28b2dStaylor if (callback != NULL_FUNC && callback != SLEEP_FUNC) { 479cab28b2dStaylor ddi_set_callback(callback, callback_arg, 480cab28b2dStaylor &scsi_callback_id); 481cab28b2dStaylor } 482cab28b2dStaylor 483cab28b2dStaylor return (NULL); 484cab28b2dStaylor } 485cab28b2dStaylor 486cab28b2dStaylor void 487cab28b2dStaylor scsi_free_cache_pkt(struct scsi_address *ap, struct scsi_pkt *pktp) 488cab28b2dStaylor { 489cab28b2dStaylor struct scsi_pkt_cache_wrapper *pktw; 490cab28b2dStaylor 491cab28b2dStaylor (*A_TO_TRAN(ap)->tran_teardown_pkt)(pktp); 492cab28b2dStaylor pktw = (struct scsi_pkt_cache_wrapper *)pktp; 4938faf39b2Staylor if (pktw->pcw_flags & PCW_BOUND) 4948faf39b2Staylor scsi_dmafree_attr(pktp); 495cab28b2dStaylor 496cab28b2dStaylor /* 497cab28b2dStaylor * if we allocated memory for anything that wouldn't fit, free 498cab28b2dStaylor * the memory and restore the pointers 499cab28b2dStaylor */ 5008faf39b2Staylor if (pktw->pcw_flags & PCW_NEED_EXT_SCB) { 501cab28b2dStaylor kmem_free(pktp->pkt_scbp, pktp->pkt_scblen); 502cab28b2dStaylor pktp->pkt_scbp = (opaque_t)((char *)pktp + 503cab28b2dStaylor (A_TO_TRAN(ap))->tran_hba_len + 504cab28b2dStaylor DEFAULT_PRIVLEN + sizeof (struct scsi_pkt_cache_wrapper)); 505cab28b2dStaylor if ((A_TO_TRAN(ap))->tran_hba_flags & SCSI_HBA_TRAN_CDB) 506cab28b2dStaylor pktp->pkt_scbp = (opaque_t)((pktp->pkt_scbp) + 507cab28b2dStaylor DEFAULT_CDBLEN); 508cab28b2dStaylor pktp->pkt_scblen = 0; 509cab28b2dStaylor } 5108faf39b2Staylor if (pktw->pcw_flags & PCW_NEED_EXT_TGT) { 511cab28b2dStaylor kmem_free(pktp->pkt_private, pktp->pkt_tgtlen); 512cab28b2dStaylor pktp->pkt_tgtlen = 0; 513cab28b2dStaylor pktp->pkt_private = NULL; 514cab28b2dStaylor } 5158faf39b2Staylor if (pktw->pcw_flags & PCW_NEED_EXT_CDB) { 516cab28b2dStaylor kmem_free(pktp->pkt_cdbp, pktp->pkt_cdblen); 517cab28b2dStaylor pktp->pkt_cdbp = (opaque_t)((char *)pktp + 518cab28b2dStaylor (A_TO_TRAN(ap))->tran_hba_len + 519cab28b2dStaylor sizeof (struct scsi_pkt_cache_wrapper)); 520cab28b2dStaylor pktp->pkt_cdblen = 0; 521cab28b2dStaylor } 5228faf39b2Staylor pktw->pcw_flags &= 5238faf39b2Staylor ~(PCW_NEED_EXT_CDB|PCW_NEED_EXT_TGT|PCW_NEED_EXT_SCB); 524cab28b2dStaylor kmem_cache_free(A_TO_TRAN(ap)->tran_pkt_cache_ptr, pktw); 525cab28b2dStaylor 526cab28b2dStaylor if (scsi_callback_id != 0) { 527cab28b2dStaylor ddi_run_callback(&scsi_callback_id); 528cab28b2dStaylor } 529cab28b2dStaylor 530cab28b2dStaylor } 531cab28b2dStaylor 5328faf39b2Staylor 5337c478bd9Sstevel@tonic-gate struct scsi_pkt * 5347c478bd9Sstevel@tonic-gate scsi_init_pkt(struct scsi_address *ap, struct scsi_pkt *in_pktp, 5357c478bd9Sstevel@tonic-gate struct buf *bp, int cmdlen, int statuslen, int pplen, 5367c478bd9Sstevel@tonic-gate int flags, int (*callback)(caddr_t), caddr_t callback_arg) 5377c478bd9Sstevel@tonic-gate { 5387c478bd9Sstevel@tonic-gate struct scsi_pkt *pktp; 5397c478bd9Sstevel@tonic-gate scsi_hba_tran_t *tranp = ap->a_hba_tran; 5407c478bd9Sstevel@tonic-gate int (*func)(caddr_t); 5417c478bd9Sstevel@tonic-gate 5427c478bd9Sstevel@tonic-gate TRACE_5(TR_FAC_SCSI_RES, TR_SCSI_INIT_PKT_START, 5437c478bd9Sstevel@tonic-gate "scsi_init_pkt_start: addr %p in_pktp %p cmdlen %d statuslen %d pplen %d", 5447c478bd9Sstevel@tonic-gate ap, in_pktp, cmdlen, statuslen, pplen); 5457c478bd9Sstevel@tonic-gate 5467c478bd9Sstevel@tonic-gate #if defined(__i386) || defined(__amd64) 5477c478bd9Sstevel@tonic-gate if (flags & PKT_CONSISTENT_OLD) { 5487c478bd9Sstevel@tonic-gate flags &= ~PKT_CONSISTENT_OLD; 5497c478bd9Sstevel@tonic-gate flags |= PKT_CONSISTENT; 5507c478bd9Sstevel@tonic-gate } 5517c478bd9Sstevel@tonic-gate #endif 5527c478bd9Sstevel@tonic-gate 5537c478bd9Sstevel@tonic-gate func = (callback == SLEEP_FUNC) ? SLEEP_FUNC : NULL_FUNC; 5547c478bd9Sstevel@tonic-gate 5557c478bd9Sstevel@tonic-gate pktp = (*tranp->tran_init_pkt) (ap, in_pktp, bp, cmdlen, 5567c478bd9Sstevel@tonic-gate statuslen, pplen, flags, func, NULL); 5577c478bd9Sstevel@tonic-gate if (pktp == NULL) { 5587c478bd9Sstevel@tonic-gate if (callback != NULL_FUNC && callback != SLEEP_FUNC) { 5597c478bd9Sstevel@tonic-gate ddi_set_callback(callback, callback_arg, 5607c478bd9Sstevel@tonic-gate &scsi_callback_id); 5617c478bd9Sstevel@tonic-gate } 5627c478bd9Sstevel@tonic-gate } 5637c478bd9Sstevel@tonic-gate 5647c478bd9Sstevel@tonic-gate TRACE_1(TR_FAC_SCSI_RES, TR_SCSI_INIT_PKT_END, 5657c478bd9Sstevel@tonic-gate "scsi_init_pkt_end: pktp %p", pktp); 5667c478bd9Sstevel@tonic-gate return (pktp); 5677c478bd9Sstevel@tonic-gate } 5687c478bd9Sstevel@tonic-gate 5697c478bd9Sstevel@tonic-gate void 5707c478bd9Sstevel@tonic-gate scsi_destroy_pkt(struct scsi_pkt *pkt) 5717c478bd9Sstevel@tonic-gate { 5727c478bd9Sstevel@tonic-gate struct scsi_address *ap = P_TO_ADDR(pkt); 5737c478bd9Sstevel@tonic-gate 5747c478bd9Sstevel@tonic-gate TRACE_1(TR_FAC_SCSI_RES, TR_SCSI_DESTROY_PKT_START, 5757c478bd9Sstevel@tonic-gate "scsi_destroy_pkt_start: pkt %p", pkt); 5767c478bd9Sstevel@tonic-gate 5777c478bd9Sstevel@tonic-gate (*A_TO_TRAN(ap)->tran_destroy_pkt)(ap, pkt); 5787c478bd9Sstevel@tonic-gate 5797c478bd9Sstevel@tonic-gate if (scsi_callback_id != 0) { 5807c478bd9Sstevel@tonic-gate ddi_run_callback(&scsi_callback_id); 5817c478bd9Sstevel@tonic-gate } 5827c478bd9Sstevel@tonic-gate 5837c478bd9Sstevel@tonic-gate TRACE_0(TR_FAC_SCSI_RES, TR_SCSI_DESTROY_PKT_END, 5847c478bd9Sstevel@tonic-gate "scsi_destroy_pkt_end"); 5857c478bd9Sstevel@tonic-gate } 5867c478bd9Sstevel@tonic-gate 5877c478bd9Sstevel@tonic-gate 5887c478bd9Sstevel@tonic-gate /* 5897c478bd9Sstevel@tonic-gate * Generic Resource Allocation Routines 5907c478bd9Sstevel@tonic-gate */ 5917c478bd9Sstevel@tonic-gate 5927c478bd9Sstevel@tonic-gate struct scsi_pkt * 5937c478bd9Sstevel@tonic-gate scsi_resalloc(struct scsi_address *ap, int cmdlen, int statuslen, 5947c478bd9Sstevel@tonic-gate opaque_t dmatoken, int (*callback)()) 5957c478bd9Sstevel@tonic-gate { 5967c478bd9Sstevel@tonic-gate register struct scsi_pkt *pkt; 5977c478bd9Sstevel@tonic-gate register scsi_hba_tran_t *tranp = ap->a_hba_tran; 5987c478bd9Sstevel@tonic-gate register int (*func)(caddr_t); 5997c478bd9Sstevel@tonic-gate 6007c478bd9Sstevel@tonic-gate func = (callback == SLEEP_FUNC) ? SLEEP_FUNC : NULL_FUNC; 6017c478bd9Sstevel@tonic-gate 6027c478bd9Sstevel@tonic-gate pkt = (*tranp->tran_init_pkt) (ap, NULL, (struct buf *)dmatoken, 6037c478bd9Sstevel@tonic-gate cmdlen, statuslen, 0, 0, func, NULL); 6047c478bd9Sstevel@tonic-gate if (pkt == NULL) { 6057c478bd9Sstevel@tonic-gate if (callback != NULL_FUNC && callback != SLEEP_FUNC) { 6067c478bd9Sstevel@tonic-gate ddi_set_callback(callback, NULL, &scsi_callback_id); 6077c478bd9Sstevel@tonic-gate } 6087c478bd9Sstevel@tonic-gate } 6097c478bd9Sstevel@tonic-gate 6107c478bd9Sstevel@tonic-gate return (pkt); 6117c478bd9Sstevel@tonic-gate } 6127c478bd9Sstevel@tonic-gate 6137c478bd9Sstevel@tonic-gate struct scsi_pkt * 6147c478bd9Sstevel@tonic-gate scsi_pktalloc(struct scsi_address *ap, int cmdlen, int statuslen, 6157c478bd9Sstevel@tonic-gate int (*callback)()) 6167c478bd9Sstevel@tonic-gate { 6177c478bd9Sstevel@tonic-gate struct scsi_pkt *pkt; 6187c478bd9Sstevel@tonic-gate struct scsi_hba_tran *tran = ap->a_hba_tran; 6197c478bd9Sstevel@tonic-gate register int (*func)(caddr_t); 6207c478bd9Sstevel@tonic-gate 6217c478bd9Sstevel@tonic-gate func = (callback == SLEEP_FUNC) ? SLEEP_FUNC : NULL_FUNC; 6227c478bd9Sstevel@tonic-gate 6237c478bd9Sstevel@tonic-gate pkt = (*tran->tran_init_pkt) (ap, NULL, NULL, cmdlen, 6247c478bd9Sstevel@tonic-gate statuslen, 0, 0, func, NULL); 6257c478bd9Sstevel@tonic-gate if (pkt == NULL) { 6267c478bd9Sstevel@tonic-gate if (callback != NULL_FUNC && callback != SLEEP_FUNC) { 6277c478bd9Sstevel@tonic-gate ddi_set_callback(callback, NULL, &scsi_callback_id); 6287c478bd9Sstevel@tonic-gate } 6297c478bd9Sstevel@tonic-gate } 6307c478bd9Sstevel@tonic-gate 6317c478bd9Sstevel@tonic-gate return (pkt); 6327c478bd9Sstevel@tonic-gate } 6337c478bd9Sstevel@tonic-gate 6347c478bd9Sstevel@tonic-gate struct scsi_pkt * 6357c478bd9Sstevel@tonic-gate scsi_dmaget(struct scsi_pkt *pkt, opaque_t dmatoken, int (*callback)()) 6367c478bd9Sstevel@tonic-gate { 6377c478bd9Sstevel@tonic-gate struct scsi_pkt *new_pkt; 6387c478bd9Sstevel@tonic-gate register int (*func)(caddr_t); 6397c478bd9Sstevel@tonic-gate 6407c478bd9Sstevel@tonic-gate func = (callback == SLEEP_FUNC) ? SLEEP_FUNC : NULL_FUNC; 6417c478bd9Sstevel@tonic-gate 6427c478bd9Sstevel@tonic-gate new_pkt = (*P_TO_TRAN(pkt)->tran_init_pkt) (&pkt->pkt_address, 6437c478bd9Sstevel@tonic-gate pkt, (struct buf *)dmatoken, 6447c478bd9Sstevel@tonic-gate 0, 0, 0, 0, func, NULL); 6457c478bd9Sstevel@tonic-gate ASSERT(new_pkt == pkt || new_pkt == NULL); 6467c478bd9Sstevel@tonic-gate if (new_pkt == NULL) { 6477c478bd9Sstevel@tonic-gate if (callback != NULL_FUNC && callback != SLEEP_FUNC) { 6487c478bd9Sstevel@tonic-gate ddi_set_callback(callback, NULL, &scsi_callback_id); 6497c478bd9Sstevel@tonic-gate } 6507c478bd9Sstevel@tonic-gate } 6517c478bd9Sstevel@tonic-gate 6527c478bd9Sstevel@tonic-gate return (new_pkt); 6537c478bd9Sstevel@tonic-gate } 6547c478bd9Sstevel@tonic-gate 6557c478bd9Sstevel@tonic-gate 6567c478bd9Sstevel@tonic-gate /* 6577c478bd9Sstevel@tonic-gate * Generic Resource Deallocation Routines 6587c478bd9Sstevel@tonic-gate */ 6597c478bd9Sstevel@tonic-gate 6607c478bd9Sstevel@tonic-gate void 6617c478bd9Sstevel@tonic-gate scsi_dmafree(struct scsi_pkt *pkt) 6627c478bd9Sstevel@tonic-gate { 6637c478bd9Sstevel@tonic-gate register struct scsi_address *ap = P_TO_ADDR(pkt); 6648faf39b2Staylor 6657c478bd9Sstevel@tonic-gate (*A_TO_TRAN(ap)->tran_dmafree)(ap, pkt); 6667c478bd9Sstevel@tonic-gate 6677c478bd9Sstevel@tonic-gate if (scsi_callback_id != 0) { 6687c478bd9Sstevel@tonic-gate ddi_run_callback(&scsi_callback_id); 6697c478bd9Sstevel@tonic-gate } 6707c478bd9Sstevel@tonic-gate } 6717c478bd9Sstevel@tonic-gate 6728faf39b2Staylor /*ARGSUSED*/ 6738faf39b2Staylor void 6748faf39b2Staylor scsi_cache_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt) 6758faf39b2Staylor { 6768faf39b2Staylor ASSERT(pkt->pkt_numcookies == 0); 6778faf39b2Staylor ASSERT(pkt->pkt_handle != NULL); 6788faf39b2Staylor scsi_dmafree_attr(pkt); 6798faf39b2Staylor 6808faf39b2Staylor if (scsi_callback_id != 0) { 6818faf39b2Staylor ddi_run_callback(&scsi_callback_id); 6828faf39b2Staylor } 6838faf39b2Staylor } 6848faf39b2Staylor 6857c478bd9Sstevel@tonic-gate void 6867c478bd9Sstevel@tonic-gate scsi_sync_pkt(struct scsi_pkt *pkt) 6877c478bd9Sstevel@tonic-gate { 6887c478bd9Sstevel@tonic-gate register struct scsi_address *ap = P_TO_ADDR(pkt); 6897c478bd9Sstevel@tonic-gate (*A_TO_TRAN(ap)->tran_sync_pkt)(ap, pkt); 6907c478bd9Sstevel@tonic-gate } 6917c478bd9Sstevel@tonic-gate 6928faf39b2Staylor /*ARGSUSED*/ 6938faf39b2Staylor void 6948faf39b2Staylor scsi_sync_cache_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) 6958faf39b2Staylor { 696*afcdc791Scth if (pkt->pkt_handle && 697*afcdc791Scth (pkt->pkt_dma_flags & (DDI_DMA_WRITE | DDI_DMA_READ))) { 6988faf39b2Staylor (void) ddi_dma_sync(pkt->pkt_handle, 699*afcdc791Scth pkt->pkt_dma_offset, pkt->pkt_dma_len, 700*afcdc791Scth (pkt->pkt_dma_flags & DDI_DMA_WRITE) ? 701*afcdc791Scth DDI_DMA_SYNC_FORDEV : DDI_DMA_SYNC_FORCPU); 7028faf39b2Staylor } 7038faf39b2Staylor } 7048faf39b2Staylor 7057c478bd9Sstevel@tonic-gate void 7067c478bd9Sstevel@tonic-gate scsi_resfree(struct scsi_pkt *pkt) 7077c478bd9Sstevel@tonic-gate { 7087c478bd9Sstevel@tonic-gate register struct scsi_address *ap = P_TO_ADDR(pkt); 7097c478bd9Sstevel@tonic-gate (*A_TO_TRAN(ap)->tran_destroy_pkt)(ap, pkt); 7107c478bd9Sstevel@tonic-gate 7117c478bd9Sstevel@tonic-gate if (scsi_callback_id != 0) { 7127c478bd9Sstevel@tonic-gate ddi_run_callback(&scsi_callback_id); 7137c478bd9Sstevel@tonic-gate } 7147c478bd9Sstevel@tonic-gate } 715