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SCSI fixes on 20191015

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Five changes, two in drivers (qla2xxx, zfcp), one to MAINTAINERS
 (qla2xxx) and two in the core.  The last two are mostly about removing
 incorrect messages from the kernel log: the resid message is
 definitely wrong and the sync cache on protected drive problem is
 arguably wrong.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Five changes, two in drivers (qla2xxx, zfcp), one to MAINTAINERS
  (qla2xxx) and two in the core.

  The last two are mostly about removing incorrect messages from the
  kernel log: the resid message is definitely wrong and the sync cache
  on protected drive problem is arguably wrong"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: MAINTAINERS: Update qla2xxx driver
  scsi: zfcp: fix reaction on bit error threshold notification
  scsi: core: save/restore command resid for error handling
  scsi: qla2xxx: Remove WARN_ON_ONCE in qla2x00_status_cont_entry()
  scsi: sd: Ignore a failure to sync cache due to lack of authorization
This commit is contained in:
Linus Torvalds 2019-10-15 12:19:08 -07:00
commit 8625732e77
6 changed files with 20 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
MAINTAINERS
View File

@ -13364,7 +13364,7 @@ S: Maintained
F: drivers/scsi/qla1280.[ch]
QLOGIC QLA2XXX FC-SCSI DRIVER
M: qla2xxx-upstream@qlogic.com
M: hmadhani@marvell.com
L: linux-scsi@vger.kernel.org
S: Supported
F: Documentation/scsi/LICENSE.qla2xxx

16
drivers/s390/scsi/zfcp_fsf.c
View File

@ -27,6 +27,11 @@
struct kmem_cache *zfcp_fsf_qtcb_cache;
static bool ber_stop = true;
module_param(ber_stop, bool, 0600);
MODULE_PARM_DESC(ber_stop,
"Shuts down FCP devices for FCP channels that report a bit-error count in excess of its threshold (default on)");
static void zfcp_fsf_request_timeout_handler(struct timer_list *t)
{
struct zfcp_fsf_req *fsf_req = from_timer(fsf_req, t, timer);
@ -236,10 +241,15 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
case FSF_STATUS_READ_SENSE_DATA_AVAIL:
break;
case FSF_STATUS_READ_BIT_ERROR_THRESHOLD:
dev_warn(&adapter->ccw_device->dev,
"The error threshold for checksum statistics "
"has been exceeded\n");
zfcp_dbf_hba_bit_err("fssrh_3", req);
if (ber_stop) {
dev_warn(&adapter->ccw_device->dev,
"All paths over this FCP device are disused because of excessive bit errors\n");
zfcp_erp_adapter_shutdown(adapter, 0, "fssrh_b");
} else {
dev_warn(&adapter->ccw_device->dev,
"The error threshold for checksum statistics has been exceeded\n");
}
break;
case FSF_STATUS_READ_LINK_DOWN:
zfcp_fsf_status_read_link_down(req);

2
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -2837,8 +2837,6 @@ qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
if (sense_len == 0) {
rsp->status_srb = NULL;
sp->done(sp, cp->result);
} else {
WARN_ON_ONCE(true);
}
}

3
drivers/scsi/scsi_error.c
View File

@ -967,6 +967,7 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses,
ses->data_direction = scmd->sc_data_direction;
ses->sdb = scmd->sdb;
ses->result = scmd->result;
ses->resid_len = scmd->req.resid_len;
ses->underflow = scmd->underflow;
ses->prot_op = scmd->prot_op;
ses->eh_eflags = scmd->eh_eflags;
@ -977,6 +978,7 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses,
memset(scmd->cmnd, 0, BLK_MAX_CDB);
memset(&scmd->sdb, 0, sizeof(scmd->sdb));
scmd->result = 0;
scmd->req.resid_len = 0;
if (sense_bytes) {
scmd->sdb.length = min_t(unsigned, SCSI_SENSE_BUFFERSIZE,
@ -1029,6 +1031,7 @@ void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct scsi_eh_save *ses)
scmd->sc_data_direction = ses->data_direction;
scmd->sdb = ses->sdb;
scmd->result = ses->result;
scmd->req.resid_len = ses->resid_len;
scmd->underflow = ses->underflow;
scmd->prot_op = ses->prot_op;
scmd->eh_eflags = ses->eh_eflags;

3
drivers/scsi/sd.c
View File

@ -1654,7 +1654,8 @@ static int sd_sync_cache(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr)
/* we need to evaluate the error return */
if (scsi_sense_valid(sshdr) &&
(sshdr->asc == 0x3a || /* medium not present */
sshdr->asc == 0x20)) /* invalid command */
sshdr->asc == 0x20 || /* invalid command */
(sshdr->asc == 0x74 && sshdr->ascq == 0x71))) /* drive is password locked */
/* this is no error here */
return 0;

1
include/scsi/scsi_eh.h
View File

@ -32,6 +32,7 @@ extern int scsi_ioctl_reset(struct scsi_device *, int __user *);
struct scsi_eh_save {
/* saved state */
int result;
unsigned int resid_len;
int eh_eflags;
enum dma_data_direction data_direction;
unsigned underflow;