diff options
| author | Xin LI <delphij@FreeBSD.org> | 2011-11-17 11:16:56 +0000 |
|---|---|---|
| committer | Xin LI <delphij@FreeBSD.org> | 2011-11-17 11:16:56 +0000 |
| commit | faf0d98e4f11111bdb06efb138877360817672bb (patch) | |
| tree | 04766cee53316a6ed8262114006d97d1068fe70f /sys/dev | |
| parent | 26cdb82d9b4fa476826c311f7171aec0128b8a40 (diff) | |
Notes
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/mfi/mfi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/dev/mfi/mfi.c b/sys/dev/mfi/mfi.c index e737391497a8..c15985a3bc71 100644 --- a/sys/dev/mfi/mfi.c +++ b/sys/dev/mfi/mfi.c @@ -932,6 +932,12 @@ mfi_intr(void *arg) if (sc->mfi_check_clear_intr(sc)) return; + /* + * Do a dummy read to flush the interrupt ACK that we just performed, + * ensuring that everything is really, truly consistent. + */ + (void)sc->mfi_read_fw_status(sc); + pi = sc->mfi_comms->hw_pi; ci = sc->mfi_comms->hw_ci; mtx_lock(&sc->mfi_io_lock); |