Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-11 14:42:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

SCSI fixes on 20180731

Browse Source 
Nine fixes, five in the qla2xxx driver, the most serious of which is
 the uninitialized list head crash which can be observed in most
 systems under a sufficiently loaded low memory environment.  The two
 sg fixes are minor but obvious and two target ones which seem
 reasonable but not high impact.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCW2B83yYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishfjaAQDN5p+O
 kB54JeM3Ae0IT7StDsK+LECoeGj2fYACBH+wUQD/eOZEXi6pDJ796VJWwjfqnxWb
 6Eonm3Qtikxj/Q4Z78w=
 =k2Af
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Nine fixes, five in the qla2xxx driver, the most serious of which is
  the uninitialized list head crash which can be observed in most
  systems under a sufficiently loaded low memory environment.

  The two sg fixes are minor but obvious and two target ones which seem
  reasonable but not high impact"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla2xxx: Return error when TMF returns
  scsi: qla2xxx: Fix ISP recovery on unload
  scsi: qla2xxx: Fix driver unload by shutting down chip
  scsi: qla2xxx: Fix NPIV deletion by calling wait_for_sess_deletion
  scsi: qla2xxx: Fix unintialized List head crash
  scsi: sg: update comment for blk_get_request()
  scsi: sg: fix minor memory leak in error path
  scsi: libiscsi: fix possible NULL pointer dereference in case of TMF
  scsi: target: iscsi: cxgbit: fix max iso npdu calculation
This commit is contained in:
Linus Torvalds 2018-07-31 09:46:36 -07:00
commit c1d61e7fe3
13 changed files with 75 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/scsi/libiscsi.c
View File

@ -284,11 +284,11 @@ static int iscsi_check_tmf_restrictions(struct iscsi_task *task, int opcode)
*/
if (opcode != ISCSI_OP_SCSI_DATA_OUT) {
iscsi_conn_printk(KERN_INFO, conn,
"task [op %x/%x itt "
"task [op %x itt "
"0x%x/0x%x] "
"rejected.\n",
task->hdr->opcode, opcode,
task->itt, task->hdr_itt);
opcode, task->itt,
task->hdr_itt);
return -EACCES;
}
/*
@ -297,10 +297,10 @@ static int iscsi_check_tmf_restrictions(struct iscsi_task *task, int opcode)
*/
if (conn->session->fast_abort) {
iscsi_conn_printk(KERN_INFO, conn,
"task [op %x/%x itt "
"task [op %x itt "
"0x%x/0x%x] fast abort.\n",
task->hdr->opcode, opcode,
task->itt, task->hdr_itt);
opcode, task->itt,
task->hdr_itt);
return -EACCES;
}
break;

1
drivers/scsi/qla2xxx/qla_attr.c
View File

@ -2141,6 +2141,7 @@ qla24xx_vport_delete(struct fc_vport *fc_vport)
msleep(1000);
qla24xx_disable_vp(vha);
qla2x00_wait_for_sess_deletion(vha);
vha->flags.delete_progress = 1;

1
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -214,6 +214,7 @@ void qla2x00_handle_login_done_event(struct scsi_qla_host *, fc_port_t *,
int qla24xx_post_gnl_work(struct scsi_qla_host *, fc_port_t *);
int qla24xx_async_abort_cmd(srb_t *);
int qla24xx_post_relogin_work(struct scsi_qla_host *vha);
void qla2x00_wait_for_sess_deletion(scsi_qla_host_t *);
/*
* Global Functions in qla_mid.c source file.

4
drivers/scsi/qla2xxx/qla_gs.c
View File

@ -3708,6 +3708,10 @@ int qla24xx_async_gpnid(scsi_qla_host_t *vha, port_id_t *id)
return rval;
done_free_sp:
spin_lock_irqsave(&vha->hw->vport_slock, flags);
list_del(&sp->elem);
spin_unlock_irqrestore(&vha->hw->vport_slock, flags);
if (sp->u.iocb_cmd.u.ctarg.req) {
dma_free_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt),

7
drivers/scsi/qla2xxx/qla_init.c
View File

@ -1489,11 +1489,10 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
wait_for_completion(&tm_iocb->u.tmf.comp);
rval = tm_iocb->u.tmf.comp_status == CS_COMPLETE ?
QLA_SUCCESS : QLA_FUNCTION_FAILED;
rval = tm_iocb->u.tmf.data;
if ((rval != QLA_SUCCESS) || tm_iocb->u.tmf.data) {
ql_dbg(ql_dbg_taskm, vha, 0x8030,
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x8030,
"TM IOCB failed (%x).\n", rval);
}

2
drivers/scsi/qla2xxx/qla_inline.h
View File

@ -222,6 +222,8 @@ qla2xxx_get_qpair_sp(struct qla_qpair *qpair, fc_port_t *fcport, gfp_t flag)
sp->fcport = fcport;
sp->iocbs = 1;
sp->vha = qpair->vha;
INIT_LIST_HEAD(&sp->elem);
done:
if (!sp)
QLA_QPAIR_MARK_NOT_BUSY(qpair);

3
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -631,6 +631,9 @@ qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
unsigned long flags;
fc_port_t *fcport = NULL;
if (!vha->hw->flags.fw_started)
return;
/* Setup to process RIO completion. */
handle_cnt = 0;
if (IS_CNA_CAPABLE(ha))

6
drivers/scsi/qla2xxx/qla_mbx.c
View File

@ -4220,6 +4220,9 @@ qla25xx_init_req_que(struct scsi_qla_host *vha, struct req_que *req)
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
if (!ha->flags.fw_started)
return QLA_SUCCESS;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d3,
"Entered %s.\n", __func__);
@ -4289,6 +4292,9 @@ qla25xx_init_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
if (!ha->flags.fw_started)
return QLA_SUCCESS;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d6,
"Entered %s.\n", __func__);

9
drivers/scsi/qla2xxx/qla_mid.c
View File

@ -152,11 +152,18 @@ int
qla24xx_disable_vp(scsi_qla_host_t *vha)
{
unsigned long flags;
int ret;
int ret = QLA_SUCCESS;
fc_port_t *fcport;
if (vha->hw->flags.fw_started)
ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
list_for_each_entry(fcport, &vha->vp_fcports, list)
fcport->logout_on_delete = 0;
qla2x00_mark_all_devices_lost(vha, 0);
/* Remove port id from vp target map */
spin_lock_irqsave(&vha->hw->hardware_lock, flags);

51
drivers/scsi/qla2xxx/qla_os.c
View File

@ -303,6 +303,7 @@ static void qla2x00_free_device(scsi_qla_host_t *);
static int qla2xxx_map_queues(struct Scsi_Host *shost);
static void qla2x00_destroy_deferred_work(struct qla_hw_data *);
struct scsi_host_template qla2xxx_driver_template = {
.module = THIS_MODULE,
.name = QLA2XXX_DRIVER_NAME,
@ -1147,7 +1148,7 @@ static inline int test_fcport_count(scsi_qla_host_t *vha)
* qla2x00_wait_for_sess_deletion can only be called from remove_one.
* it has dependency on UNLOADING flag to stop device discovery
*/
static void
void
qla2x00_wait_for_sess_deletion(scsi_qla_host_t *vha)
{
qla2x00_mark_all_devices_lost(vha, 0);
@ -3603,6 +3604,8 @@ qla2x00_remove_one(struct pci_dev *pdev)
base_vha = pci_get_drvdata(pdev);
ha = base_vha->hw;
ql_log(ql_log_info, base_vha, 0xb079,
"Removing driver\n");
/* Indicate device removal to prevent future board_disable and wait
* until any pending board_disable has completed. */
@ -3625,6 +3628,21 @@ qla2x00_remove_one(struct pci_dev *pdev)
}
qla2x00_wait_for_hba_ready(base_vha);
if (IS_QLA25XX(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha)) {
if (ha->flags.fw_started)
qla2x00_abort_isp_cleanup(base_vha);
} else if (!IS_QLAFX00(ha)) {
if (IS_QLA8031(ha)) {
ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
"Clearing fcoe driver presence.\n");
if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
"Error while clearing DRV-Presence.\n");
}
qla2x00_try_to_stop_firmware(base_vha);
}
qla2x00_wait_for_sess_deletion(base_vha);
/*
@ -3648,14 +3666,6 @@ qla2x00_remove_one(struct pci_dev *pdev)
qla2x00_delete_all_vps(ha, base_vha);
if (IS_QLA8031(ha)) {
ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
"Clearing fcoe driver presence.\n");
if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
"Error while clearing DRV-Presence.\n");
}
qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
qla2x00_dfs_remove(base_vha);
@ -3715,24 +3725,6 @@ qla2x00_free_device(scsi_qla_host_t *vha)
qla2x00_stop_timer(vha);
qla25xx_delete_queues(vha);
if (ha->flags.fce_enabled)
qla2x00_disable_fce_trace(vha, NULL, NULL);
if (ha->eft)
qla2x00_disable_eft_trace(vha);
if (IS_QLA25XX(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha)) {
if (ha->flags.fw_started)
qla2x00_abort_isp_cleanup(vha);
} else {
if (ha->flags.fw_started) {
/* Stop currently executing firmware. */
qla2x00_try_to_stop_firmware(vha);
ha->flags.fw_started = 0;
}
}
vha->flags.online = 0;
/* turn-off interrupts on the card */
@ -6028,8 +6020,9 @@ qla2x00_do_dpc(void *data)
set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
}
if (test_and_clear_bit(ISP_ABORT_NEEDED,
&base_vha->dpc_flags)) {
if (test_and_clear_bit
(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
!test_bit(UNLOADING, &base_vha->dpc_flags)) {
ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
"ISP abort scheduled.\n");

3
drivers/scsi/qla2xxx/qla_sup.c
View File

@ -1880,6 +1880,9 @@ qla24xx_beacon_off(struct scsi_qla_host *vha)
if (IS_P3P_TYPE(ha))
return QLA_SUCCESS;
if (!ha->flags.fw_started)
return QLA_SUCCESS;
ha->beacon_blink_led = 0;
if (IS_QLA2031(ha) || IS_QLA27XX(ha))

15
drivers/scsi/sg.c
View File

@ -1741,15 +1741,11 @@ sg_start_req(Sg_request *srp, unsigned char *cmd)
*
* With scsi-mq enabled, there are a fixed number of preallocated
* requests equal in number to shost->can_queue. If all of the
* preallocated requests are already in use, then using GFP_ATOMIC with
* blk_get_request() will return -EWOULDBLOCK, whereas using GFP_KERNEL
* will cause blk_get_request() to sleep until an active command
* completes, freeing up a request. Neither option is ideal, but
* GFP_KERNEL is the better choice to prevent userspace from getting an
* unexpected EWOULDBLOCK.
*
* With scsi-mq disabled, blk_get_request() with GFP_KERNEL usually
* does not sleep except under memory pressure.
* preallocated requests are already in use, then blk_get_request()
* will sleep until an active command completes, freeing up a request.
* Although waiting in an asynchronous interface is less than ideal, we
* do not want to use BLK_MQ_REQ_NOWAIT here because userspace might
* not expect an EWOULDBLOCK from this condition.
*/
rq = blk_get_request(q, hp->dxfer_direction == SG_DXFER_TO_DEV ?
REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, 0);
@ -2185,6 +2181,7 @@ sg_add_sfp(Sg_device * sdp)
write_lock_irqsave(&sdp->sfd_lock, iflags);
if (atomic_read(&sdp->detaching)) {
write_unlock_irqrestore(&sdp->sfd_lock, iflags);
kfree(sfp);
return ERR_PTR(-ENODEV);
}
list_add_tail(&sfp->sfd_siblings, &sdp->sfds);

14
drivers/target/iscsi/cxgbit/cxgbit_target.c
View File

@ -652,6 +652,7 @@ static int cxgbit_set_iso_npdu(struct cxgbit_sock *csk)
struct iscsi_param *param;
u32 mrdsl, mbl;
u32 max_npdu, max_iso_npdu;
u32 max_iso_payload;
if (conn->login->leading_connection) {
param = iscsi_find_param_from_key(MAXBURSTLENGTH,
@ -670,7 +671,9 @@ static int cxgbit_set_iso_npdu(struct cxgbit_sock *csk)
mrdsl = conn_ops->MaxRecvDataSegmentLength;
max_npdu = mbl / mrdsl;
max_iso_npdu = CXGBIT_MAX_ISO_PAYLOAD /
max_iso_payload = rounddown(CXGBIT_MAX_ISO_PAYLOAD, csk->emss);
max_iso_npdu = max_iso_payload /
(ISCSI_HDR_LEN + mrdsl +
cxgbit_digest_len[csk->submode]);
@ -741,6 +744,9 @@ static int cxgbit_set_params(struct iscsi_conn *conn)
if (conn_ops->MaxRecvDataSegmentLength > cdev->mdsl)
conn_ops->MaxRecvDataSegmentLength = cdev->mdsl;
if (cxgbit_set_digest(csk))
return -1;
if (conn->login->leading_connection) {
param = iscsi_find_param_from_key(ERRORRECOVERYLEVEL,
conn->param_list);
@ -764,7 +770,7 @@ static int cxgbit_set_params(struct iscsi_conn *conn)
if (is_t5(cdev->lldi.adapter_type))
goto enable_ddp;
else
goto enable_digest;
return 0;
}
if (test_bit(CDEV_ISO_ENABLE, &cdev->flags)) {
@ -781,10 +787,6 @@ enable_ddp:
}
}
enable_digest:
if (cxgbit_set_digest(csk))
return -1;
return 0;
}