diff options
| 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_core.c | |
| parent | 6894f013a71b1bcd09f46b8071f0c6b55fc58139 (diff) | |
[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_core.c')
| -rw-r--r-- | drivers/scsi/bfa/bfa_core.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c index 837879de72c..eb296286c37 100644 --- a/drivers/scsi/bfa/bfa_core.c +++ b/drivers/scsi/bfa/bfa_core.c @@ -983,7 +983,8 @@ bfa_iocfc_send_cfg(void *bfa_arg) cfg_info->single_msix_vec = 1; cfg_info->endian_sig = BFI_IOC_ENDIAN_SIG; cfg_info->num_cqs = cfg->fwcfg.num_cqs; - cfg_info->num_ioim_reqs = cpu_to_be16(cfg->fwcfg.num_ioim_reqs); + cfg_info->num_ioim_reqs = cpu_to_be16(bfa_fcpim_get_throttle_cfg(bfa, + cfg->fwcfg.num_ioim_reqs)); cfg_info->num_fwtio_reqs = cpu_to_be16(cfg->fwcfg.num_fwtio_reqs); bfa_dma_be_addr_set(cfg_info->cfgrsp_addr, iocfc->cfgrsp_dma.pa); @@ -1245,10 +1246,14 @@ bfa_iocfc_qreg(struct bfa_s *bfa, struct bfi_iocfc_qreg_s *qreg) static void bfa_iocfc_res_recfg(struct bfa_s *bfa, struct bfa_iocfc_fwcfg_s *fwcfg) { + struct bfa_iocfc_s *iocfc = &bfa->iocfc; + struct bfi_iocfc_cfg_s *cfg_info = iocfc->cfginfo; + bfa_fcxp_res_recfg(bfa, fwcfg->num_fcxp_reqs); bfa_uf_res_recfg(bfa, fwcfg->num_uf_bufs); bfa_rport_res_recfg(bfa, fwcfg->num_rports); - bfa_fcp_res_recfg(bfa, fwcfg->num_ioim_reqs); + bfa_fcp_res_recfg(bfa, cpu_to_be16(cfg_info->num_ioim_reqs), + fwcfg->num_ioim_reqs); bfa_tskim_res_recfg(bfa, fwcfg->num_tskim_reqs); } |