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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-23 11:13:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-23 11:13:11 -0700
commitd4e06701b89286a306b31e20ec69a904fae374a1 (patch)
treef6adefd65b021ccddb7655109ea8b9ab4e714292 /drivers/scsi/libfc
parente4980371059ca4a81ccdcb4381c41af8869ca711 (diff)
parent87045b033a62777337ae4aa62834876da09b5fb5 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (77 commits) [SCSI] fix crash in scsi_dispatch_cmd() [SCSI] sr: check_events() ignore GET_EVENT when TUR says otherwise [SCSI] bnx2i: Fixed kernel panic due to illegal usage of sc->request->cpu [SCSI] bfa: Update the driver version to 3.0.2.1 [SCSI] bfa: Driver and BSG enhancements. [SCSI] bfa: Added support to query PHY. [SCSI] bfa: Added HBA diagnostics support. [SCSI] bfa: Added support for flash configuration [SCSI] bfa: Added support to obtain SFP info. [SCSI] bfa: Added support for CEE info and stats query. [SCSI] bfa: Extend BSG interface. [SCSI] bfa: FCS bug fixes. [SCSI] bfa: DMA memory allocation enhancement. [SCSI] bfa: Brocade-1860 Fabric Adapter vHBA support. [SCSI] bfa: Brocade-1860 Fabric Adapter PLL init fixes. [SCSI] bfa: Added Fabric Assigned Address(FAA) support [SCSI] bfa: IOC bug fixes. [SCSI] bfa: Enable ASIC block configuration and query. [SCSI] bnx2i: Updated copyright and bump version [SCSI] bnx2i: Modified to skip CNIC registration if iSCSI is not supported ... Fix up some trivial conflicts in: - drivers/scsi/bnx2fc/{bnx2fc.h,bnx2fc_fcoe.c}: Crazy broadcom version number conflicts - drivers/target/tcm_fc/tfc_cmd.c Just trivial cleanups done on adjacent lines
Diffstat (limited to 'drivers/scsi/libfc')
-rw-r--r--drivers/scsi/libfc/fc_exch.c26
-rw-r--r--drivers/scsi/libfc/fc_lport.c2
-rw-r--r--drivers/scsi/libfc/fc_rport.c14
3 files changed, 40 insertions, 2 deletions
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 3b8a6451ea28..f5a0665b6773 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -965,8 +965,30 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
sp = &ep->seq;
if (sp->id != fh->fh_seq_id) {
atomic_inc(&mp->stats.seq_not_found);
- reject = FC_RJT_SEQ_ID; /* sequence/exch should exist */
- goto rel;
+ if (f_ctl & FC_FC_END_SEQ) {
+ /*
+ * Update sequence_id based on incoming last
+ * frame of sequence exchange. This is needed
+ * for FCoE target where DDP has been used
+ * on target where, stack is indicated only
+ * about last frame's (payload _header) header.
+ * Whereas "seq_id" which is part of
+ * frame_header is allocated by initiator
+ * which is totally different from "seq_id"
+ * allocated when XFER_RDY was sent by target.
+ * To avoid false -ve which results into not
+ * sending RSP, hence write request on other
+ * end never finishes.
+ */
+ spin_lock_bh(&ep->ex_lock);
+ sp->ssb_stat |= SSB_ST_RESP;
+ sp->id = fh->fh_seq_id;
+ spin_unlock_bh(&ep->ex_lock);
+ } else {
+ /* sequence/exch should exist */
+ reject = FC_RJT_SEQ_ID;
+ goto rel;
+ }
}
}
WARN_ON(ep != fc_seq_exch(sp));
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 389ab80aef0a..e008b1673507 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -1025,6 +1025,8 @@ static void fc_lport_enter_reset(struct fc_lport *lport)
fc_vport_set_state(lport->vport, FC_VPORT_LINKDOWN);
}
fc_lport_state_enter(lport, LPORT_ST_RESET);
+ fc_host_post_event(lport->host, fc_get_event_number(),
+ FCH_EVT_LIPRESET, 0);
fc_vports_linkchange(lport);
fc_lport_reset_locked(lport);
if (lport->link_up)
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index 01e13a2eb93a..760db7619446 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -789,6 +789,20 @@ static void fc_rport_recv_flogi_req(struct fc_lport *lport,
switch (rdata->rp_state) {
case RPORT_ST_INIT:
+ /*
+ * If received the FLOGI request on RPORT which is INIT state
+ * (means not transition to FLOGI either fc_rport timeout
+ * function didn;t trigger or this end hasn;t received
+ * beacon yet from other end. In that case only, allow RPORT
+ * state machine to continue, otherwise fall through which
+ * causes the code to send reject response.
+ * NOTE; Not checking for FIP->state such as VNMP_UP or
+ * VNMP_CLAIM because if FIP state is not one of those,
+ * RPORT wouldn;t have created and 'rport_lookup' would have
+ * failed anyway in that case.
+ */
+ if (lport->point_to_multipoint)
+ break;
case RPORT_ST_DELETE:
mutex_unlock(&rdata->rp_mutex);
rjt_data.reason = ELS_RJT_FIP;