On 08/19/2016 11:50 AM, Jitendra Bhivare wrote: > Current EQ delay is set to 0 to receive very high max interrupt per sec. > Set EQ delay to 32 - reducing max interrupt rate from 65K to 20K per sec. > > Set TCP connection window size to 64K with scale shift count 2. > > Signed-off-by: Jitendra Bhivare <[email protected]> > --- > drivers/scsi/be2iscsi/be_main.c | 2 +- > drivers/scsi/be2iscsi/be_mgmt.c | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c > index 50d865e..7c372b8 100644 > --- a/drivers/scsi/be2iscsi/be_main.c > +++ b/drivers/scsi/be2iscsi/be_main.c > @@ -3729,7 +3729,7 @@ static int hwi_init_port(struct beiscsi_hba *phba) > phwi_context = phwi_ctrlr->phwi_ctxt; > phwi_context->max_eqd = 128; > phwi_context->min_eqd = 0; > - phwi_context->cur_eqd = 0; > + phwi_context->cur_eqd = 32; > /* set port optic state to unknown */ > phba->optic_state = 0xff; > > diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c > index 736eca3..adc827b 100644 > --- a/drivers/scsi/be2iscsi/be_mgmt.c > +++ b/drivers/scsi/be2iscsi/be_mgmt.c > @@ -338,7 +338,7 @@ int mgmt_open_connection(struct beiscsi_hba *phba, > > if (!is_chip_be2_be3r(phba)) { > req->hdr.version = MBX_CMD_VER1; > - req->tcp_window_size = 0; > + req->tcp_window_size = 0x8000; > req->tcp_window_scale_count = 2; > } > > Wouldn't it make sense to allow modifications here, eg via a module parameters? From the description this should help reducing the latency if required, no?
Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage [email protected] +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
