diff options
| author | Kenneth R Westerback <krw@cvs.openbsd.org> | 2008-06-02 15:44:00 +0000 |
|---|---|---|
| committer | Kenneth R Westerback <krw@cvs.openbsd.org> | 2008-06-02 15:44:00 +0000 |
| commit | 43875e0365db377cdc1cc52777605c4afb96f362 (patch) | |
| tree | 7232d1e0a50831d6209cdb4af4f2f786c62e8af2 | |
| parent | 515a82b7166b924e809b94458934945f348669c8 (diff) | |
Shrink scsi_mode_sense_buf to 254 bytes so ahci doesn't get upset at
trying to dma-map odd length data areas. No other alignment should be
required according to miod@. Makes my new SATA tape drive work.
ok deraadt@
| -rw-r--r-- | sys/scsi/scsi_all.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/scsi/scsi_all.h b/sys/scsi/scsi_all.h index 21c34501178..7d0395ec251 100644 --- a/sys/scsi/scsi_all.h +++ b/sys/scsi/scsi_all.h @@ -1,4 +1,4 @@ -/* $OpenBSD: scsi_all.h,v 1.45 2008/04/10 13:18:07 dlg Exp $ */ +/* $OpenBSD: scsi_all.h,v 1.46 2008/06/02 15:43:59 krw Exp $ */ /* $NetBSD: scsi_all.h,v 1.10 1996/09/12 01:57:17 thorpej Exp $ */ /* @@ -435,8 +435,10 @@ struct scsi_mode_header_big { union scsi_mode_sense_buf { struct scsi_mode_header hdr; struct scsi_mode_header_big hdr_big; - u_char buf[255]; /* 256 bytes breaks some devices. */ -} __packed; /* Ensure sizeof() is 255! */ + u_char buf[254]; /* 255 & 256 bytes breaks some devices. */ + /* ahci doesn't like 255, various don't like */ + /* 256 because length must fit in 8 bits. */ +} __packed; /* Ensure sizeof() is 254! */ struct scsi_report_luns_data { u_int8_t length[4]; /* length of LUN inventory, in bytes */ |