From: Vasu Dev Date: Fri, 9 Mar 2012 22:49:58 +0000 (-0800) Subject: [SCSI] libfc: update fc_host mfs along with updating lport->mfs X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=73d67aa40b1f94a4e5edecbbc3b94d352eeeae0a;p=deliverable%2Flinux.git [SCSI] libfc: update fc_host mfs along with updating lport->mfs Currently fc_host mfs is not getting updated in case its changed during FLOGI and that leaves fc_host to show its initial old value in sysfs, so instead have fc_host mfs updated along with updating lport mfs during FLOGI. Also in case of bad mfs during flogi, error out instead of continuing with flogi. [ Changes made by Robert Love: condition to '>=' and added printing of lport->mfs in DBG statement. FLOGI resp processing failed without being able to compare FCoE MFS 2112 against an incoming MFS of 2112 ] Signed-off-by: Vasu Dev Tested-by: Ross Brattain Signed-off-by: Robert Love Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c index 9a0b2a9caad6..4f7ef76aa795 100644 --- a/drivers/scsi/libfc/fc_lport.c +++ b/drivers/scsi/libfc/fc_lport.c @@ -1743,8 +1743,16 @@ void fc_lport_flogi_resp(struct fc_seq *sp, struct fc_frame *fp, mfs = ntohs(flp->fl_csp.sp_bb_data) & FC_SP_BB_DATA_MASK; if (mfs >= FC_SP_MIN_MAX_PAYLOAD && - mfs < lport->mfs) + mfs <= lport->mfs) { lport->mfs = mfs; + fc_host_maxframe_size(lport->host) = mfs; + } else { + FC_LPORT_DBG(lport, "FLOGI bad mfs:%hu response, " + "lport->mfs:%hu\n", mfs, lport->mfs); + fc_lport_error(lport, fp); + goto err; + } + csp_flags = ntohs(flp->fl_csp.sp_features); r_a_tov = ntohl(flp->fl_csp.sp_r_a_tov); e_d_tov = ntohl(flp->fl_csp.sp_e_d_tov);