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| author | mav <mav@FreeBSD.org> | 2015-10-05 11:45:28 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2015-10-05 11:45:28 +0000 |
| commit | 5ee28f32f3fc011b1e2bc325023cb3d5f52e8781 (patch) | |
| tree | b9dd2357559de069f6089b3fa0d7767edff4de57 /sys/cam/cam_periph.c | |
| parent | 9bfaae3f56e02aaea2d1363f3a19c66e506632e3 (diff) | |
| download | FreeBSD-src-5ee28f32f3fc011b1e2bc325023cb3d5f52e8781.zip FreeBSD-src-5ee28f32f3fc011b1e2bc325023cb3d5f52e8781.tar.gz | |
MFC r288420: Make pass, sg and targ drivers respect HBA's maxio.
Previous limitation of 64K (DFLTPHYS) is quite annoying.
Diffstat (limited to 'sys/cam/cam_periph.c')
| -rw-r--r-- | sys/cam/cam_periph.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/sys/cam/cam_periph.c b/sys/cam/cam_periph.c index 53454f8..625be21 100644 --- a/sys/cam/cam_periph.c +++ b/sys/cam/cam_periph.c @@ -716,16 +716,19 @@ camperiphfree(struct cam_periph *periph) * buffers to map stuff in and out, we're limited to the buffer size. */ int -cam_periph_mapmem(union ccb *ccb, struct cam_periph_map_info *mapinfo) +cam_periph_mapmem(union ccb *ccb, struct cam_periph_map_info *mapinfo, + u_int maxmap) { int numbufs, i, j; int flags[CAM_PERIPH_MAXMAPS]; u_int8_t **data_ptrs[CAM_PERIPH_MAXMAPS]; u_int32_t lengths[CAM_PERIPH_MAXMAPS]; u_int32_t dirs[CAM_PERIPH_MAXMAPS]; - /* Some controllers may not be able to handle more data. */ - size_t maxmap = DFLTPHYS; + if (maxmap == 0) + maxmap = DFLTPHYS; /* traditional default */ + else if (maxmap > MAXPHYS) + maxmap = MAXPHYS; /* for safety */ switch(ccb->ccb_h.func_code) { case XPT_DEV_MATCH: if (ccb->cdm.match_buf_len == 0) { |
