diff options
Diffstat (limited to 'sys/cam/ctl/ctl_frontend_ioctl.c')
| -rw-r--r-- | sys/cam/ctl/ctl_frontend_ioctl.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/sys/cam/ctl/ctl_frontend_ioctl.c b/sys/cam/ctl/ctl_frontend_ioctl.c index 6f90fe3a42bc..3f5c23c0c55e 100644 --- a/sys/cam/ctl/ctl_frontend_ioctl.c +++ b/sys/cam/ctl/ctl_frontend_ioctl.c @@ -138,7 +138,7 @@ ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) struct ctl_sg_entry ext_entry, kern_entry; int ext_sglen, ext_sg_entries, kern_sg_entries; int ext_sg_start, ext_offset; - int len_to_copy, len_copied; + int len_to_copy; int kern_watermark, ext_watermark; int ext_sglist_malloced; int i, j; @@ -150,7 +150,8 @@ ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) */ if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { ext_sglist_malloced = 0; - ctsio->ext_data_filled = ctsio->ext_data_len; + ctsio->ext_data_filled += ctsio->kern_data_len; + ctsio->kern_data_resid = 0; goto bailout; } @@ -204,7 +205,6 @@ ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) kern_watermark = 0; ext_watermark = ext_offset; - len_copied = 0; for (i = ext_sg_start, j = 0; i < ext_sg_entries && j < kern_sg_entries;) { uint8_t *ext_ptr, *kern_ptr; @@ -226,9 +226,6 @@ ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) kern_ptr = (uint8_t *)kern_sglist[j].addr; kern_ptr = kern_ptr + kern_watermark; - kern_watermark += len_to_copy; - ext_watermark += len_to_copy; - if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) { CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " @@ -250,21 +247,22 @@ ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) } } - len_copied += len_to_copy; + ctsio->ext_data_filled += len_to_copy; + ctsio->kern_data_resid -= len_to_copy; + ext_watermark += len_to_copy; if (ext_sglist[i].len == ext_watermark) { i++; ext_watermark = 0; } + kern_watermark += len_to_copy; if (kern_sglist[j].len == kern_watermark) { j++; kern_watermark = 0; } } - ctsio->ext_data_filled += len_copied; - CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " "kern_sg_entries: %d\n", ext_sg_entries, kern_sg_entries)); @@ -272,15 +270,6 @@ ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) "kern_data_len = %d\n", ctsio->ext_data_len, ctsio->kern_data_len)); - /* - * Report write underflow as error, since CTL and backends don't - * really support it. - */ - if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT && - j < kern_sg_entries) { - ctsio->io_hdr.port_status = 43; - } - bailout: if (ext_sglist_malloced != 0) free(ext_sglist, M_CTL); |