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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/dada/dada.h>
#include <sys/vtrace.h>
#define A_TO_TRAN(ap) ((ap)->a_hba_tran)
#define P_TO_TRAN(pkt) ((pkt)->pkt_address.a_hba_tran)
#define P_TO_ADDR(pkt) (&((pkt)->pkt_address))
/*
* Callback id
*/
uintptr_t dcd_callback_id = 0L;
/* For i_ddi_mem_alloc() in dcd_alloc_consistent_buf() */
static ddi_dma_attr_t standard_dma_attr = {
DMA_ATTR_V0, /* version number */
0x0, /* lowest usable address */
0xFFFFFFFFull, /* high DMA address range */
0xFFFFFFFFull, /* DMA counter register */
1, /* DMA address alignment */
1, /* DMA burstsizes */
1, /* min effective DMA size */
0xFFFFFFFFull, /* max DMA xfer size */
0xFFFFFFFFull, /* segment boundary */
1, /* s/g list length */
512, /* granularity of device */
0, /* DMA transfer flags */
};
struct buf *
dcd_alloc_consistent_buf(struct dcd_address *ap,
struct buf *in_bp, size_t datalen, uint_t bflags,
int (*callback)(caddr_t), caddr_t callback_arg)
{
dev_info_t *pdip;
struct buf *bp;
int kmflag;
size_t rlen;
if (!in_bp) {
kmflag = (callback == SLEEP_FUNC) ? KM_SLEEP: KM_NOSLEEP;
if ((bp = getrbuf(kmflag)) == NULL) {
goto no_resource;
}
} else
bp = in_bp;
bp->b_un.b_addr = 0;
if (datalen) {
pdip = (A_TO_TRAN(ap))->tran_hba_dip;
if (i_ddi_mem_alloc(pdip, &standard_dma_attr, datalen, 0,
0, NULL, &bp->b_un.b_addr, &rlen, NULL) != DDI_SUCCESS) {
if (!in_bp)
freerbuf(bp);
goto no_resource;
}
bp->b_flags |= bflags;
}
bp->b_bcount = datalen;
bp->b_resid = 0;
return (bp);
no_resource:
if (callback != NULL_FUNC && callback != SLEEP_FUNC) {
ddi_set_callback(callback, callback_arg, &dcd_callback_id);
}
return (NULL);
}
void
dcd_free_consistent_buf(struct buf *bp)
{
if (!bp)
return;
if (bp->b_un.b_addr)
i_ddi_mem_free((caddr_t)bp->b_un.b_addr, NULL);
freerbuf(bp);
if (dcd_callback_id != 0L) {
ddi_run_callback(&dcd_callback_id);
}
}
struct dcd_pkt *
dcd_init_pkt(struct dcd_address *ap, struct dcd_pkt *in_pktp,
struct buf *bp, int cmdlen, int statuslen, int pplen,
int flags, int (*callback)(caddr_t), caddr_t callback_arg)
{
struct dcd_pkt *pktp;
dcd_hba_tran_t *tranp = ap->a_hba_tran;
int (*func)(caddr_t);
#if defined(__x86)
if (flags & PKT_CONSISTENT_OLD) {
flags &= ~PKT_CONSISTENT_OLD;
flags |= PKT_CONSISTENT;
}
#endif /* __x86 */
func = (callback == SLEEP_FUNC) ? SLEEP_FUNC : NULL_FUNC;
pktp = (*tranp->tran_init_pkt)(ap, in_pktp, bp, cmdlen,
statuslen, pplen, flags, func, NULL);
if (pktp == NULL) {
if (callback != NULL_FUNC && callback != SLEEP_FUNC) {
ddi_set_callback(callback, callback_arg,
&dcd_callback_id);
}
}
return (pktp);
}
void
dcd_destroy_pkt(struct dcd_pkt *pkt)
{
struct dcd_address *ap = P_TO_ADDR(pkt);
(*A_TO_TRAN(ap)->tran_destroy_pkt)(ap, pkt);
if (dcd_callback_id != 0L) {
ddi_run_callback(&dcd_callback_id);
}
}
struct dcd_pkt *
dcd_resalloc(struct dcd_address *ap, int cmdlen, int statuslen,
ataopaque_t dmatoken, int (*callback)())
{
register struct dcd_pkt *pkt;
register dcd_hba_tran_t *tranp = ap->a_hba_tran;
register int (*func)(caddr_t);
func = (callback == SLEEP_FUNC) ? SLEEP_FUNC: NULL_FUNC;
pkt = (*tranp->tran_init_pkt) (ap, NULL, (struct buf *)dmatoken,
cmdlen, statuslen, 0, 0, func, NULL);
if (pkt == NULL) {
if (callback != NULL_FUNC && callback != SLEEP_FUNC) {
ddi_set_callback(callback, NULL, &dcd_callback_id);
}
}
return (pkt);
}
struct dcd_pkt *
dcd_pktalloc(struct dcd_address *ap, int cmdlen, int statuslen,
int (*callback)())
{
struct dcd_pkt *pkt;
struct dcd_hba_tran *tran = ap->a_hba_tran;
register int (*func)(caddr_t);
func = (callback == SLEEP_FUNC) ? SLEEP_FUNC: NULL_FUNC;
pkt = (*tran->tran_init_pkt) (ap, NULL, NULL, cmdlen, statuslen,
0, 0, func, NULL);
if (pkt == NULL) {
if (callback != NULL_FUNC && callback != SLEEP_FUNC) {
ddi_set_callback(callback, NULL, &dcd_callback_id);
}
}
return (pkt);
}
struct dcd_pkt *
dcd_dmaget(struct dcd_pkt *pkt, ataopaque_t dmatoken, int (*callback)())
{
struct dcd_pkt *new_pkt;
register int (*func)(caddr_t);
func = (callback == SLEEP_FUNC) ? SLEEP_FUNC : NULL_FUNC;
new_pkt = (*P_TO_TRAN(pkt)->tran_init_pkt) (&pkt->pkt_address,
pkt, (struct buf *)dmatoken, 0, 0, 0, 0, func, NULL);
ASSERT(new_pkt == pkt || new_pkt == NULL);
if (new_pkt == NULL) {
if (callback != NULL_FUNC && callback != SLEEP_FUNC) {
ddi_set_callback(callback, NULL, &dcd_callback_id);
}
}
return (pkt);
}
/*
* Generic Resource Allocation Routines
*/
void
dcd_dmafree(struct dcd_pkt *pkt)
{
register struct dcd_address *ap = P_TO_ADDR(pkt);
(*A_TO_TRAN(ap)->tran_dmafree)(ap, pkt);
if (dcd_callback_id != 0L) {
ddi_run_callback(&dcd_callback_id);
}
}
void
dcd_sync_pkt(struct dcd_pkt *pkt)
{
register struct dcd_address *ap = P_TO_ADDR(pkt);
(*A_TO_TRAN(ap)->tran_sync_pkt) (ap, pkt);
}
void
dcd_resfree(struct dcd_pkt *pkt)
{
register struct dcd_address *ap = P_TO_ADDR(pkt);
(*A_TO_TRAN(ap)->tran_destroy_pkt)(ap, pkt);
if (dcd_callback_id != 0L) {
ddi_run_callback(&dcd_callback_id);
}
}
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