From 36d345a703b7b3f80a56ee37abb7908c52d1cd67 Mon Sep 17 00:00:00 2001 From: Jing Huang Date: Thu, 8 Jul 2010 19:57:33 -0700 Subject: [SCSI] bfa: add dynamic queue selection Add new bfa functionality to support dynamic queue selection (IO redirection). IO redirection can only be enabled when QoS is disabled. Signed-off-by: Jing Huang Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfa_fcpim.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers/scsi/bfa/bfa_fcpim.c') diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c index 12849e9071c..8c703d8dc94 100644 --- a/drivers/scsi/bfa/bfa_fcpim.c +++ b/drivers/scsi/bfa/bfa_fcpim.c @@ -167,4 +167,28 @@ bfa_fcpim_qdepth_get(struct bfa_s *bfa) return fcpim->q_depth; } +void +bfa_fcpim_update_ioredirect(struct bfa_s *bfa) +{ + bfa_boolean_t ioredirect; + + /* + * IO redirection is turned off when QoS is enabled and vice versa + */ + ioredirect = bfa_fcport_is_qos_enabled(bfa) ? BFA_FALSE : BFA_TRUE; + /* + * Notify the bfad module of a possible state change in + * IO redirection capability, due to a QoS state change. bfad will + * check on the support for io redirection and update the + * fcpim's ioredirect state accordingly. + */ + bfa_cb_ioredirect_state_change((void *)(bfa->bfad), ioredirect); +} + +void +bfa_fcpim_set_ioredirect(struct bfa_s *bfa, bfa_boolean_t state) +{ + struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); + fcpim->ioredirect = state; +} -- cgit v1.2.3-70-g09d2