diff options
| author | Noriaki Mitsunaga <non@FreeBSD.org> | 2001-09-02 07:18:29 +0000 |
|---|---|---|
| committer | Noriaki Mitsunaga <non@FreeBSD.org> | 2001-09-02 07:18:29 +0000 |
| commit | 9d92f16230a510d3ae6a915faf807cb6879062fd (patch) | |
| tree | dddc0e69b48cc819771cba013af4beef231a3d77 /sys/dev/nsp/nsp.c | |
| parent | daee21d1b4584cf74445e74e953618c997ede37a (diff) | |
Notes
Diffstat (limited to 'sys/dev/nsp/nsp.c')
| -rw-r--r-- | sys/dev/nsp/nsp.c | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/sys/dev/nsp/nsp.c b/sys/dev/nsp/nsp.c index a78dd34ee21d..61f4740e2bcb 100644 --- a/sys/dev/nsp/nsp.c +++ b/sys/dev/nsp/nsp.c @@ -452,7 +452,7 @@ nsphw_start_selection(sc, cb) continue; } - SCSI_LOW_DELAY(1); + SCSI_LOW_DELAY(1); ph = nsp_cr_read_1(bst, bsh, NSPR_SCBUSMON); if ((ph & SCBUSMON_BSY) != 0) { @@ -1168,21 +1168,35 @@ WriteLoop: * is ready to recieve data without * heavy delays. */ - acount = nsp_fifo_count(sc); - rcount = nsp_request_count(sc); - if (rcount <= acount) + if ((slp->sl_scp.scp_datalen % suspendio) == 0) { + /* Step I: + * fill the nsp fifo, and waiting for + * the fifo empty. + */ nsp_write_fifo(sc, 0); -#ifdef NSP_STATICS - nsp_statics.device_busy ++; -#endif /* NSP_STATICS */ } else { - nsp_write_fifo(sc, suspendio); + /* Step II: + * check the request singals. + */ + acount = nsp_fifo_count(sc); + rcount = nsp_request_count(sc); + if (rcount <= acount) + { + nsp_write_fifo(sc, 0); +#ifdef NSP_STATICS + nsp_statics.device_busy ++; +#endif /* NSP_STATICS */ + } + else + { + nsp_write_fifo(sc, suspendio); #ifdef NSP_STATICS - nsp_statics.device_data_write ++; + nsp_statics.device_data_write ++; #endif /* NSP_STATICS */ + } } } else |