--- /dev/null
+From f8efca92ae509c25e0a4bd5d0a86decea4f0c41e Mon Sep 17 00:00:00 2001
+From: Eliav Farber <farbere@amazon.com>
+Date: Thu, 13 Jan 2022 10:06:19 +0000
+Subject: EDAC: Fix calculation of returned address and next offset in edac_align_ptr()
+
+From: Eliav Farber <farbere@amazon.com>
+
+commit f8efca92ae509c25e0a4bd5d0a86decea4f0c41e upstream.
+
+Do alignment logic properly and use the "ptr" local variable for
+calculating the remainder of the alignment.
+
+This became an issue because struct edac_mc_layer has a size that is not
+zero modulo eight, and the next offset that was prepared for the private
+data was unaligned, causing an alignment exception.
+
+The patch in Fixes: which broke this actually wanted to "what we
+actually care about is the alignment of the actual pointer that's about
+to be returned." But it didn't check that alignment.
+
+Use the correct variable "ptr" for that.
+
+ [ bp: Massage commit message. ]
+
+Fixes: 8447c4d15e35 ("edac: Do alignment logic properly in edac_align_ptr()")
+Signed-off-by: Eliav Farber <farbere@amazon.com>
+Signed-off-by: Borislav Petkov <bp@suse.de>
+Cc: <stable@vger.kernel.org>
+Link: https://lore.kernel.org/r/20220113100622.12783-2-farbere@amazon.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/edac/edac_mc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/edac/edac_mc.c
++++ b/drivers/edac/edac_mc.c
+@@ -210,7 +210,7 @@ void *edac_align_ptr(void **p, unsigned
+ else
+ return (char *)ptr;
+
+- r = (unsigned long)p % align;
++ r = (unsigned long)ptr % align;
+
+ if (r == 0)
+ return (char *)ptr;
--- /dev/null
+From 7f4c5a26f735dea4bbc0eb8eb9da99cda95a8563 Mon Sep 17 00:00:00 2001
+From: James Smart <jsmart2021@gmail.com>
+Date: Sat, 12 Feb 2022 08:31:20 -0800
+Subject: scsi: lpfc: Fix pt2pt NVMe PRLI reject LOGO loop
+
+From: James Smart <jsmart2021@gmail.com>
+
+commit 7f4c5a26f735dea4bbc0eb8eb9da99cda95a8563 upstream.
+
+When connected point to point, the driver does not know the FC4's supported
+by the other end. In Fabrics, it can query the nameserver. Thus the driver
+must send PRLIs for the FC4s it supports and enable support based on the
+acc(ept) or rej(ect) of the respective FC4 PRLI. Currently the driver
+supports SCSI and NVMe PRLIs.
+
+Unfortunately, although the behavior is per standard, many devices have
+come to expect only SCSI PRLIs. In this particular example, the NVMe PRLI
+is properly RJT'd but the target decided that it must LOGO after seeing the
+unexpected NVMe PRLI. The LOGO causes the sequence to restart and login is
+now in an infinite failure loop.
+
+Fix the problem by having the driver, on a pt2pt link, remember NVMe PRLI
+accept or reject status across logout as long as the link stays "up". When
+retrying login, if the prior NVMe PRLI was rejected, it will not be sent on
+the next login.
+
+Link: https://lore.kernel.org/r/20220212163120.15385-1-jsmart2021@gmail.com
+Cc: <stable@vger.kernel.org> # v5.4+
+Reviewed-by: Ewan D. Milne <emilne@redhat.com>
+Signed-off-by: James Smart <jsmart2021@gmail.com>
+Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/scsi/lpfc/lpfc.h | 1 +
+ drivers/scsi/lpfc/lpfc_attr.c | 3 +++
+ drivers/scsi/lpfc/lpfc_els.c | 20 +++++++++++++++++++-
+ drivers/scsi/lpfc/lpfc_nportdisc.c | 5 +++--
+ 4 files changed, 26 insertions(+), 3 deletions(-)
+
+--- a/drivers/scsi/lpfc/lpfc.h
++++ b/drivers/scsi/lpfc/lpfc.h
+@@ -374,6 +374,7 @@ struct lpfc_vport {
+ #define FC_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */
+ #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
+ #define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/
++#define FC_PT2PT_NO_NVME 0x1000 /* Don't send NVME PRLI */
+ #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
+ #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
+ #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
+--- a/drivers/scsi/lpfc/lpfc_attr.c
++++ b/drivers/scsi/lpfc/lpfc_attr.c
+@@ -1142,6 +1142,9 @@ lpfc_issue_lip(struct Scsi_Host *shost)
+ pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
+ pmboxq->u.mb.mbxOwner = OWN_HOST;
+
++ if ((vport->fc_flag & FC_PT2PT) && (vport->fc_flag & FC_PT2PT_NO_NVME))
++ vport->fc_flag &= ~FC_PT2PT_NO_NVME;
++
+ mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
+
+ if ((mbxstatus == MBX_SUCCESS) &&
+--- a/drivers/scsi/lpfc/lpfc_els.c
++++ b/drivers/scsi/lpfc/lpfc_els.c
+@@ -1067,7 +1067,8 @@ stop_rr_fcf_flogi:
+
+ /* FLOGI failed, so there is no fabric */
+ spin_lock_irq(shost->host_lock);
+- vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
++ vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP |
++ FC_PT2PT_NO_NVME);
+ spin_unlock_irq(shost->host_lock);
+
+ /* If private loop, then allow max outstanding els to be
+@@ -3945,6 +3946,23 @@ lpfc_els_retry(struct lpfc_hba *phba, st
+ /* Added for Vendor specifc support
+ * Just keep retrying for these Rsn / Exp codes
+ */
++ if ((vport->fc_flag & FC_PT2PT) &&
++ cmd == ELS_CMD_NVMEPRLI) {
++ switch (stat.un.b.lsRjtRsnCode) {
++ case LSRJT_UNABLE_TPC:
++ case LSRJT_INVALID_CMD:
++ case LSRJT_LOGICAL_ERR:
++ case LSRJT_CMD_UNSUPPORTED:
++ lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
++ "0168 NVME PRLI LS_RJT "
++ "reason %x port doesn't "
++ "support NVME, disabling NVME\n",
++ stat.un.b.lsRjtRsnCode);
++ retry = 0;
++ vport->fc_flag |= FC_PT2PT_NO_NVME;
++ goto out_retry;
++ }
++ }
+ switch (stat.un.b.lsRjtRsnCode) {
+ case LSRJT_UNABLE_TPC:
+ /* The driver has a VALID PLOGI but the rport has
+--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
++++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
+@@ -2010,8 +2010,9 @@ lpfc_cmpl_reglogin_reglogin_issue(struct
+ * is configured try it.
+ */
+ ndlp->nlp_fc4_type |= NLP_FC4_FCP;
+- if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
+- (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
++ if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) &&
++ (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
++ vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
+ ndlp->nlp_fc4_type |= NLP_FC4_NVME;
+ /* We need to update the localport also */
+ lpfc_nvme_update_localport(vport);
projects / thirdparty / kernel / stable-queue.git / commitdiff
