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authorVasu Dev <vasu.dev@intel.com>2012-03-09 14:49:58 -0800
committerJames Bottomley <JBottomley@Parallels.com>2012-03-28 09:04:51 +0100
commit73d67aa40b1f94a4e5edecbbc3b94d352eeeae0a (patch)
tree95a72d5091271f7cb40580990b34db98ca603019 /drivers/scsi
parent14619ea689cc0b257cf998469005d0515133d7bc (diff)
[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 <vasu.dev@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/libfc/fc_lport.c10
1 files changed, 9 insertions, 1 deletions
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);