diff options
Diffstat (limited to 'usr/src')
| -rw-r--r-- | usr/src/uts/common/io/scsi/adapters/blk2scsa/blk2scsa.c | 78 |
1 files changed, 52 insertions, 26 deletions
diff --git a/usr/src/uts/common/io/scsi/adapters/blk2scsa/blk2scsa.c b/usr/src/uts/common/io/scsi/adapters/blk2scsa/blk2scsa.c index 5be55309d1..68a69cbf3b 100644 --- a/usr/src/uts/common/io/scsi/adapters/blk2scsa/blk2scsa.c +++ b/usr/src/uts/common/io/scsi/adapters/blk2scsa/blk2scsa.c @@ -63,6 +63,7 @@ struct b2s_request_impl { b2s_request_t ri_public; struct scsi_pkt *ri_pkt; struct scsi_arq_status *ri_sts; + buf_t *ri_bp; size_t ri_resid; b2s_nexus_t *ri_nexus; @@ -203,8 +204,10 @@ static void b2s_tran_tgt_free(dev_info_t *, dev_info_t *, scsi_hba_tran_t *, struct scsi_device *); static int b2s_tran_getcap(struct scsi_address *, char *, int); static int b2s_tran_setcap(struct scsi_address *, char *, int, int); -static void b2s_tran_teardown_pkt(struct scsi_pkt *); -static int b2s_tran_setup_pkt(struct scsi_pkt *, int (*)(caddr_t), caddr_t); +static void b2s_tran_destroy_pkt(struct scsi_address *, struct scsi_pkt *); +static struct scsi_pkt *b2s_tran_init_pkt(struct scsi_address *, + struct scsi_pkt *, struct buf *, int, int, int, int, + int (*)(caddr_t), caddr_t); static int b2s_tran_start(struct scsi_address *, struct scsi_pkt *); static int b2s_tran_abort(struct scsi_address *, struct scsi_pkt *); static int b2s_tran_reset(struct scsi_address *, int); @@ -452,14 +455,11 @@ void b2s_request_mapin(b2s_request_t *req, caddr_t *addrp, size_t *lenp) { b2s_request_impl_t *ri = (void *)req; - struct scsi_pkt *pkt = ri->ri_pkt; buf_t *bp; - if ((pkt != NULL) && ((bp = scsi_pkt2bp(pkt)) != NULL) && - (bp->b_bcount != 0)) { - bp_mapin(bp); - *addrp = bp->b_un.b_addr + pkt->pkt_dma_offset; - *lenp = pkt->pkt_dma_len; + if (((bp = ri->ri_bp) != NULL) && (bp->b_bcount != 0)) { + *addrp = bp->b_un.b_addr; + *lenp = bp->b_bcount; } else { *addrp = 0; *lenp = 0; @@ -469,11 +469,15 @@ b2s_request_mapin(b2s_request_t *req, caddr_t *addrp, size_t *lenp) void b2s_request_dma(b2s_request_t *req, uint_t *ndmacp, ddi_dma_cookie_t **dmacsp) { - b2s_request_impl_t *ri = (void *)req; - struct scsi_pkt *pkt = ri->ri_pkt; + /* + * Direct DMA support was removed; SCSA can't easily deal with + * HBAs that have restrictions which would require partial DMA + * to be used. + */ + _NOTE(ARGUNUSED(req)); - *ndmacp = pkt->pkt_numcookies; - *dmacsp = pkt->pkt_cookies; + *ndmacp = 0; + *dmacsp = NULL; } void @@ -661,28 +665,50 @@ b2s_tran_tgt_free(dev_info_t *hbadip, dev_info_t *tgtdip, b2s_rele_leaf(l); } -int -b2s_tran_setup_pkt(struct scsi_pkt *pkt, int (*cb)(caddr_t), caddr_t arg) +struct scsi_pkt * +b2s_tran_init_pkt(struct scsi_address *ap, struct scsi_pkt *pkt, + struct buf *bp, int cmdlen, int statuslen, int tgtlen, int flags, + int (*cb)(caddr_t), caddr_t cbarg) { - b2s_request_impl_t *ri = pkt->pkt_ha_private; + dev_info_t *dip; + scsi_hba_tran_t *tran; + b2s_request_impl_t *ri; - _NOTE(ARGUNUSED(cb)); - _NOTE(ARGUNUSED(arg)); + _NOTE(ARGUNUSED(cbarg)); + _NOTE(ARGUNUSED(flags)); - ri->ri_pkt = pkt; - ri->ri_sts = (struct scsi_arq_status *)(void *)pkt->pkt_scbp; + tran = ap->a_hba_tran; + dip = tran->tran_hba_dip; /* - * NB: The other fields are initialized properly at tran_start(9e). - * We don't care about their values the rest of the time. + * Unconditional mapin for now, so we will always have kernel + * virtual addresses to work with. */ - return (0); + if (bp && (bp->b_bcount)) { + bp_mapin(bp); + } + + if (pkt == NULL) { + /* we can only support these two kinds of callbacks */ + cb = (cb == SLEEP_FUNC) ? SLEEP_FUNC : NULL_FUNC; + pkt = scsi_hba_pkt_alloc(dip, ap, cmdlen, statuslen, + tgtlen, sizeof (b2s_request_impl_t), cb, NULL); + if (pkt == NULL) + return (NULL); + + ri = pkt->pkt_ha_private; + ri->ri_pkt = pkt; + ri->ri_sts = (void *)pkt->pkt_scbp; + ri->ri_bp = bp; + } + + return (pkt); } void -b2s_tran_teardown_pkt(struct scsi_pkt *pkt) +b2s_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) { - _NOTE(ARGUNUSED(pkt)); + scsi_hba_pkt_free(ap, pkt); } int @@ -1816,8 +1842,8 @@ b2s_alloc_nexus(b2s_nexus_info_t *info) tran->tran_abort = b2s_tran_abort; tran->tran_getcap = b2s_tran_getcap; tran->tran_setcap = b2s_tran_setcap; - tran->tran_setup_pkt = b2s_tran_setup_pkt; - tran->tran_teardown_pkt = b2s_tran_teardown_pkt; + tran->tran_init_pkt = b2s_tran_init_pkt; + tran->tran_destroy_pkt = b2s_tran_destroy_pkt; tran->tran_hba_len = sizeof (b2s_request_impl_t); tran->tran_bus_config = b2s_bus_config; |