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| author | Krishna Gudipati <kgudipat@brocade.com> | 2012-09-21 17:26:41 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-10-07 11:21:29 +0100 |
| commit | 7ace27ae28a5fa67fa3d25f31d1111991c81e015 (patch) | |
| tree | 841612f109ef2b32d15613aa8093d683a6261356 /drivers/scsi/bfa/bfa_fcpim.h | |
| parent | 6894f013a71b1bcd09f46b8071f0c6b55fc58139 (diff) | |
| download | blackbird-op-linux-7ace27ae28a5fa67fa3d25f31d1111991c81e015.tar.gz blackbird-op-linux-7ace27ae28a5fa67fa3d25f31d1111991c81e015.zip | |
[SCSI] bfa: Add support for IO throttling at port level
Add capability to limit the number of exchanges on a port to
avoid queue-full conditions from the target side.
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/bfa/bfa_fcpim.h')
| -rw-r--r-- | drivers/scsi/bfa/bfa_fcpim.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h index b81d51cfe2bb..e693af6e5930 100644 --- a/drivers/scsi/bfa/bfa_fcpim.h +++ b/drivers/scsi/bfa/bfa_fcpim.h @@ -42,7 +42,7 @@ void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m)); void bfa_itn_isr(struct bfa_s *bfa, struct bfi_msg_s *m); void bfa_iotag_attach(struct bfa_fcp_mod_s *fcp); -void bfa_fcp_res_recfg(struct bfa_s *bfa, u16 num_ioim_fw); +void bfa_fcp_res_recfg(struct bfa_s *bfa, u16 num_ioim_fw, u16 max_ioim_fw); #define BFA_FCP_MOD(_hal) (&(_hal)->modules.fcp_mod) #define BFA_MEM_FCP_KVA(__bfa) (&(BFA_FCP_MOD(__bfa)->kva_seg)) @@ -150,6 +150,7 @@ struct bfa_fcp_mod_s { struct list_head iotag_unused_q; /* unused IO resources*/ struct bfa_iotag_s *iotag_arr; struct bfa_itn_s *itn_arr; + int max_ioim_reqs; int num_ioim_reqs; int num_fwtio_reqs; int num_itns; @@ -157,6 +158,7 @@ struct bfa_fcp_mod_s { struct bfa_fcpim_s fcpim; struct bfa_mem_dma_s dma_seg[BFA_FCP_DMA_SEGS]; struct bfa_mem_kva_s kva_seg; + int throttle_update_required; }; /* @@ -418,5 +420,10 @@ bfa_status_t bfa_fcpim_lunmask_delete(struct bfa_s *bfa, u16 vf_id, bfa_status_t bfa_fcpim_lunmask_add(struct bfa_s *bfa, u16 vf_id, wwn_t *pwwn, wwn_t rpwwn, struct scsi_lun lun); bfa_status_t bfa_fcpim_lunmask_clear(struct bfa_s *bfa); +u16 bfa_fcpim_read_throttle(struct bfa_s *bfa); +bfa_status_t bfa_fcpim_write_throttle(struct bfa_s *bfa, u16 value); +bfa_status_t bfa_fcpim_throttle_set(struct bfa_s *bfa, u16 value); +bfa_status_t bfa_fcpim_throttle_get(struct bfa_s *bfa, void *buf); +u16 bfa_fcpim_get_throttle_cfg(struct bfa_s *bfa, u16 drv_cfg_param); #endif /* __BFA_FCPIM_H__ */ |
