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There are three places that qla4xxx parses nlattrs:
- qla4xxx_set_chap_entry()
- qla4xxx_iface_set_param()
- qla4xxx_sysfs_ddb_set_param()
and each of them directly converts the nlattr to specific pointer of
structure without length checking. This could be dangerous as those
attributes are not validated and a malformed nlattr (e.g., length 0) could
result in an OOB read that leaks heap dirty data.
Add the nla_len check before accessing the nlattr data and return EINVAL if
the length check fails.
Fixes: 26ffd7b45f ("[SCSI] qla4xxx: Add support to set CHAP entries")
Fixes: 1e9e2be3ee ("[SCSI] qla4xxx: Add flash node mgmt support")
Fixes: 00c31889f7 ("[SCSI] qla4xxx: fix data alignment and use nl helpers")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Link: https://lore.kernel.org/r/20230723080053.3714534-1-linma@zju.edu.cn
Reviewed-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
clang with W=1 reports:
drivers/scsi/qla4xxx/ql4_isr.c:475:11: error: variable
'count' set but not used [-Werror,-Wunused-but-set-variable]
uint32_t count = 0;
^
This variable is not used so remove it.
Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20230331175757.1860780-1-trix@redhat.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
pci_enable_pcie_error_reporting() enables the device to send ERR_*
Messages. Since commit f26e58bf6f ("PCI/AER: Enable error reporting when
AER is native"), the PCI core does this for all devices during enumeration,
so the driver doesn't need to do it itself.
Remove the redundant pci_enable_pcie_error_reporting() call from the
driver. Also remove the corresponding pci_disable_pcie_error_reporting()
from the driver .remove() path.
Note that this only controls ERR_* Messages from the device. An ERR_*
Message may cause the Root Port to generate an interrupt, depending on the
AER Root Error Command register managed by the AER service driver.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230307182842.870378-11-helgaas@kernel.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Manish Rangankar <mrangankar@marvell.com>
Cc: GR-QLogic-Storage-Upstream@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit 6600593cbd ("block: rename BLK_EH_NOT_HANDLED to BLK_EH_DONE")
made it impossible for .eh_timed_out() implementations to call
scsi_done() without causing a crash.
Restore support for SCSI timeout handlers to call scsi_done() as follows:
* Change all .eh_timed_out() handlers as follows:
- Change the return type into enum scsi_timeout_action.
- Change BLK_EH_RESET_TIMER into SCSI_EH_RESET_TIMER.
- Change BLK_EH_DONE into SCSI_EH_NOT_HANDLED.
* In scsi_timeout(), convert the SCSI_EH_* values into BLK_EH_* values.
Reviewed-by: Lee Duncan <lduncan@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mike Christie <michael.christie@oracle.com>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20221018202958.1902564-3-bvanassche@acm.org
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The region set by the call to memset() is immediately overwritten by the
subsequent call to memcpy(). Drop redundant memset().
Link: https://lore.kernel.org/r/1650533091-28815-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This series consists of the usual driver updates (qla2xxx, pm8001,
libsas, smartpqi, scsi_debug, lpfc, iscsi, mpi3mr) plus minor updates
and bug fixes. The high blast radius core update is the removal of
write same, which affects block and several non-SCSI devices. The
other big change, which is more local, is the removal of the SCSI
pointer.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This series consists of the usual driver updates (qla2xxx, pm8001,
libsas, smartpqi, scsi_debug, lpfc, iscsi, mpi3mr) plus minor updates
and bug fixes.
The high blast radius core update is the removal of write same, which
affects block and several non-SCSI devices. The other big change,
which is more local, is the removal of the SCSI pointer"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (281 commits)
scsi: scsi_ioctl: Drop needless assignment in sg_io()
scsi: bsg: Drop needless assignment in scsi_bsg_sg_io_fn()
scsi: lpfc: Copyright updates for 14.2.0.0 patches
scsi: lpfc: Update lpfc version to 14.2.0.0
scsi: lpfc: SLI path split: Refactor BSG paths
scsi: lpfc: SLI path split: Refactor Abort paths
scsi: lpfc: SLI path split: Refactor SCSI paths
scsi: lpfc: SLI path split: Refactor CT paths
scsi: lpfc: SLI path split: Refactor misc ELS paths
scsi: lpfc: SLI path split: Refactor VMID paths
scsi: lpfc: SLI path split: Refactor FDISC paths
scsi: lpfc: SLI path split: Refactor LS_RJT paths
scsi: lpfc: SLI path split: Refactor LS_ACC paths
scsi: lpfc: SLI path split: Refactor the RSCN/SCR/RDF/EDC/FARPR paths
scsi: lpfc: SLI path split: Refactor PLOGI/PRLI/ADISC/LOGO paths
scsi: lpfc: SLI path split: Refactor base ELS paths and the FLOGI path
scsi: lpfc: SLI path split: Introduce lpfc_prep_wqe
scsi: lpfc: SLI path split: Refactor fast and slow paths to native SLI4
scsi: lpfc: SLI path split: Refactor lpfc_iocbq
scsi: lpfc: Use kcalloc()
...
We currently allocate a workqueue per host and only use it for removing the
target. For the session per host case we could be using this workqueue to
be able to do recoveries (block, unblock, timeout handling) in parallel. To
also allow offload drivers to do their session recoveries in parallel, this
drops the per host workqueue and replaces it with a per session one.
Link: https://lore.kernel.org/r/20220226230435.38733-5-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Instead of storing the iSCSI task pointer and the session age in the SCSI
pointer, use command-private variables. This patch prepares for removal of
the SCSI pointer from struct scsi_cmnd.
The list of iSCSI drivers has been obtained as follows:
$ git grep -lw iscsi_host_alloc
drivers/infiniband/ulp/iser/iscsi_iser.c
drivers/scsi/be2iscsi/be_main.c
drivers/scsi/bnx2i/bnx2i_iscsi.c
drivers/scsi/cxgbi/libcxgbi.c
drivers/scsi/iscsi_tcp.c
drivers/scsi/libiscsi.c
drivers/scsi/qedi/qedi_main.c
drivers/scsi/qla4xxx/ql4_os.c
include/scsi/libiscsi.h
Note: it is not clear to me how the qla4xxx driver can work without this
patch since it uses the scsi_cmnd::SCp.ptr member for two different
purposes:
- The qla4xxx driver uses this member to store a struct srb pointer.
- libiscsi uses this member to store a struct iscsi_task pointer.
Reviewed-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Cc: Chris Leech <cleech@redhat.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Manish Rangankar <mrangankar@marvell.com>
Cc: Karen Xie <kxie@chelsio.com>
Cc: Ketan Mukadam <ketan.mukadam@broadcom.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
iscsi
Link: https://lore.kernel.org/r/20220218195117.25689-26-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should
no longer be used[2].
This code was transformed with the help of Coccinelle:
(next-20220214$ spatch --jobs $(getconf _NPROCESSORS_ONLN) --sp-file script.cocci --include-headers --dir . > output.patch)
@@
identifier S, member, array;
type T1, T2;
@@
struct S {
...
T1 member;
T2 array[
- 0
];
};
UAPI and wireless changes were intentionally excluded from this patch
and will be sent out separately.
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays
Link: https://github.com/KSPP/linux/issues/78
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
qedi formats SYSFS_FLAG_FW_SEL_BOOT as a byte and the qla4xxx driver does
exactly the same thing. Align them for consistency.
Link: https://lore.kernel.org/r/20211130203813.12138-3-f.fainelli@gmail.com
Suggested-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This series consists of the usual driver updates (ufs, smartpqi, lpfc,
target, megaraid_sas, hisi_sas, qla2xxx) and minor updates and bug
fixes. Notable core changes are the removal of scsi->tag which caused
some churn in obsolete drivers and a sweep through all drivers to call
scsi_done() directly instead of scsi->done() which removes a pointer
indirection from the hot path and a move to register core sysfs files
earlier, which means they're available to KOBJ_ADD processing, which
necessitates switching all drivers to using attribute groups.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This consists of the usual driver updates (ufs, smartpqi, lpfc,
target, megaraid_sas, hisi_sas, qla2xxx) and minor updates and bug
fixes.
Notable core changes are the removal of scsi->tag which caused some
churn in obsolete drivers and a sweep through all drivers to call
scsi_done() directly instead of scsi->done() which removes a pointer
indirection from the hot path and a move to register core sysfs files
earlier, which means they're available to KOBJ_ADD processing, which
necessitates switching all drivers to using attribute groups"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits)
scsi: lpfc: Update lpfc version to 14.0.0.3
scsi: lpfc: Allow fabric node recovery if recovery is in progress before devloss
scsi: lpfc: Fix link down processing to address NULL pointer dereference
scsi: lpfc: Allow PLOGI retry if previous PLOGI was aborted
scsi: lpfc: Fix use-after-free in lpfc_unreg_rpi() routine
scsi: lpfc: Correct sysfs reporting of loop support after SFP status change
scsi: lpfc: Wait for successful restart of SLI3 adapter during host sg_reset
scsi: lpfc: Revert LOG_TRACE_EVENT back to LOG_INIT prior to driver_resource_setup()
scsi: ufs: ufshcd-pltfrm: Fix memory leak due to probe defer
scsi: ufs: mediatek: Avoid sched_clock() misuse
scsi: mpt3sas: Make mpt3sas_dev_attrs static
scsi: scsi_transport_sas: Add 22.5 Gbps link rate definitions
scsi: target: core: Stop using bdevname()
scsi: aha1542: Use memcpy_{from,to}_bvec()
scsi: sr: Add error handling support for add_disk()
scsi: sd: Add error handling support for add_disk()
scsi: target: Perform ALUA group changes in one step
scsi: target: Replace lun_tg_pt_gp_lock with rcu in I/O path
scsi: target: Fix alua_tg_pt_gps_count tracking
scsi: target: Fix ordered tag handling
...
The 0-element arrays that are used as memcpy() destinations are actually
flexible arrays. Adjust their structures accordingly so that memcpy()
can better reason able their destination size (i.e. they need to be seen
as "unknown" length rather than "zero").
In some cases, use of the DECLARE_FLEX_ARRAY() helper is needed when a
flexible array is alone in a struct.
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Manish Rangankar <mrangankar@marvell.com>
Cc: GR-QLogic-Storage-Upstream@marvell.com
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Phillip Potter <phil@philpotter.co.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Fabio Aiuto <fabioaiuto83@gmail.com>
Cc: Ross Schmidt <ross.schm.dev@gmail.com>
Cc: Marco Cesati <marcocesati@gmail.com>
Cc: ath10k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: linux-staging@lists.linux.dev
Signed-off-by: Kees Cook <keescook@chromium.org>
struct device supports attribute groups directly but does not support
struct device_attribute directly. Hence switch to attribute groups.
Link: https://lore.kernel.org/r/20211012233558.4066756-42-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Prepare for removal of the request pointer by using scsi_cmd_to_rq()
instead. This patch does not change any functionality.
Link: https://lore.kernel.org/r/20210809230355.8186-40-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The macros cpu_to_le16() and cpu_to_le32() have special cases for
constants. Their __constant_<foo> versions are not required.
On little endian systems, both cpu_to_le16() and __constant_cpu_to_le16()
expand to the same expression. Same is the case with cpu_to_le32().
On big endian systems, cpu_to_le16() expands to __swab16() which has a
__builtin_constant_p check. Similarly, cpu_to_le32() expands to __swab32().
Consequently these macros can be safely used with constants, and hence all
those uses are converted. This was discovered as a part of a checkpatch
evaluation, looking at all reports of WARNING:CONSTANT_CONVERSION error
type.
Link: https://lore.kernel.org/r/20210716112852.24598-1-dwaipayanray1@gmail.com
Signed-off-by: Dwaipayan Ray <dwaipayanray1@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The continue statement at the end of a for-loop has no effect, remove it.
Link: https://lore.kernel.org/r/20210617073743.151008-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Continue has no effect")
Subsequent commits allow the kernel to do ep_disconnect. In that case we
will have to get a proper refcount on the ep so one thread does not delete
it from under another.
Link: https://lore.kernel.org/r/20210525181821.7617-7-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During ep_disconnect we have been doing iscsi_suspend_tx/queue to block new
I/O but every driver except cxgbi and iscsi_tcp can still get I/O from
__iscsi_conn_send_pdu() if we haven't called iscsi_conn_failure() before
ep_disconnect. This could happen if we were terminating the session, and
the logout timed out before it was even sent to libiscsi.
Fix the issue by adding a helper which reverses the bind_conn call that
allows new I/O to be queued. Drivers implementing ep_disconnect can use this
to make sure new I/O is not queued to them when handling the disconnect.
Link: https://lore.kernel.org/r/20210525181821.7617-3-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following coccicheck warning:
./drivers/scsi/qla4xxx/ql4_83xx.c:475:23-25: WARNING !A || A && B is
equivalent to !A || B
Link: https://lore.kernel.org/r/20210414121726.12503-1-wanjiabing@vivo.com
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This was detected by building the kernel with clang and W=1.
Link: https://lore.kernel.org/r/20210415220826.29438-13-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Eliminate the following coccicheck warning:
drivers/scsi/qla4xxx/ql4_os.c:4175:2-7: WARNING:
NULL check before some freeing functions is not needed.
drivers/scsi/qla4xxx/ql4_os.c:4196:2-7: WARNING:
NULL check before some freeing functions is not needed.
drivers/scsi/qla4xxx/ql4_os.c:4215:2-7: WARNING:
NULL check before some freeing functions is not needed.
drivers/scsi/qla4xxx/ql4_os.c:6400:2-7: WARNING:
NULL check before some freeing functions is not needed.
drivers/scsi/qla4xxx/ql4_os.c:6402:2-7: WARNING:
NULL check before some freeing functions is not needed.
drivers/scsi/qla4xxx/ql4_os.c:6555:2-7: WARNING:
NULL check before some freeing functions is not needed.
drivers/scsi/qla4xxx/ql4_os.c:6557:2-7: WARNING:
NULL check before some freeing functions is not needed.
drivers/scsi/qla4xxx/ql4_os.c:7838:2-7: WARNING:
NULL check before some freeing functions is not needed.
drivers/scsi/qla4xxx/ql4_os.c:7840:2-7: WARNING:
NULL check before some freeing functions is not needed.
Link: https://lore.kernel.org/r/20210409120345.6447-1-linqiheng@huawei.com
Signed-off-by: Qiheng Lin <linqiheng@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes the following W=1 kernel build warning(s):
drivers/scsi/qla4xxx/ql4_os.c:631: warning: expecting prototype for qla4xxx_create chap_list(). Prototype was for qla4xxx_create_chap_list() instead
drivers/scsi/qla4xxx/ql4_os.c:9643: warning: expecting prototype for gets called if(). Prototype was for qla4xxx_pci_mmio_enabled() instead
Link: https://lore.kernel.org/r/20210303144631.3175331-13-lee.jones@linaro.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Manish Rangankar <mrangankar@marvell.com>
Cc: GR-QLogic-Storage-Upstream@marvell.com
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Acked-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
__qla4xxx_is_chap_active() just wants to know if a session is online and
does not care about why it's not, so this has it use
iscsi_is_session_online().
This is not a bug now, but the next patch changes the behavior of
iscsi_session_chkready() so this patch just prepares the driver for that
change.
Link: https://lore.kernel.org/r/20210207044608.27585-9-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use standard SAM status definitions and drop the driver-defined ones.
Link: https://lore.kernel.org/r/20210113090500.129644-14-hare@suse.de
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The variable rval is being initialized with a value that is never read and
it is being updated later with a new value. The initialization is
redundant and can be removed.
Link: https://lore.kernel.org/r/20201204191810.1150995-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unused value")
qla4_82xx_rom_lock() spins on a certain hardware state until it is
updated. At the end of each spin, if in_interrupt() is true, it does 20
loops of cpu_relax(). Otherwise, it yields the CPU.
While in_interrupt() is ill-defined and does not provide what the name
suggests, it is not needed here: qla4_82xx_rom_lock() is always called
from process context. Below is an analysis of its callers:
- ql4_nx.c: qla4_82xx_rom_fast_read(), all process context callers:
=> ql4_nx.c: qla4_82xx_pinit_from_rom(), GFP_KERNEL allocation
=> ql4_nx.c: qla4_82xx_load_from_flash(), msleep() in a loop
- ql4_nx.c: qla4_82xx_pinit_from_rom(), earlier discussed
- ql4_nx.c: qla4_82xx_rom_lock_recovery(), bound to "isp_operations"
->rom_lock_recovery() hook, which has one process context caller,
qla4_8xxx_device_bootstrap(), with callers:
=> ql4_83xx.c: qla4_83xx_need_reset_handler(), process, msleep()
=> ql4_nx.c: qla4_8xxx_device_state_handler(), multiple msleep()s
- ql4_nx.c: qla4_82xx_read_flash_data(), has cond_resched()
Remove the in_interrupt() check. Mark, qla4_82xx_rom_lock(), and the
->rom_lock_recovery() hook, with "Context: task, can sleep".
Change qla4_82xx_rom_lock() implementation to sleep 20ms, instead of a
schedule(), for each spin. This is more deterministic, and it matches
the other implementations bound to ->rom_lock_recovery().
Link: https://lore.kernel.org/r/20201126132952.2287996-9-bigeasy@linutronix.de
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Manish Rangankar <mrangankar@marvell.com>
Cc: <GR-QLogic-Storage-Upstream@marvell.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
qla4_82xx_idc_lock() spins on a certain hardware state until it is
updated. At the end of each spin, if in_interrupt() is true, it does 20
loops of cpu_relax(). Otherwise, it yields the CPU.
While in_interrupt() is ill-defined and does not provide what the name
suggests, it is not needed here: qla4_82xx_idc_lock() is always called from
process context. Below is an analysis of its callers:
- ql4_nx.c: qla4_82xx_need_reset_handler(), 1-second msleep() in a
loop.
- ql4_nx.c: qla4_82xx_isp_reset(), calls
qla4_8xxx_device_state_handler(), which has multiple msleep()s.
Beside direct calls, qla4_82xx_idc_lock() is also bound to isp_operations
->idc_lock() hook. Other functions which are bound to the same hook,
e.g. qla4_83xx_drv_lock(), also have an msleep(). For completeness, below
is an analysis of all callers of that hook:
- ql4_83xx.c: qla4_83xx_need_reset_handler(), has an msleep()
- ql4_83xx.c: qla4_83xx_isp_reset(), calls
qla4_8xxx_device_state_handler(), which has multiple msleep()s.
- ql4_83xx.c: qla4_83xx_disable_pause(), all process context callers:
=> ql4_mbx.c: qla4xxx_mailbox_command(), msleep(), mutex_lock()
=> ql4_os.c: qla4xxx_recover_adapter(), schedule_timeout() in loop
=> ql4_os.c: qla4xxx_do_dpc(), workqueue context
- ql4_attr.c: qla4_8xxx_sysfs_write_fw_dump(), sysfs bin_attribute
->write() hook, process context
- ql4_mbx.c: qla4xxx_mailbox_command(), earlier discussed
- ql4_nx.c: qla4_8xxx_device_bootstrap(), callers:
=> ql4_83xx.c: qla4_83xx_need_reset_handler(), process, msleep()
=> ql4_nx.c: qla4_8xxx_device_state_handler(), earlier discussed
- ql4_nx.c: qla4_8xxx_need_qsnt_handler(), callers:
=> ql4_nx.c: qla4_8xxx_device_state_handler(), multiple msleep()s
=> ql4_os.c: qla4xxx_do_dpc(), workqueue context
- ql4_nx.c: qla4_8xxx_update_idc_reg(), callers:
=> ql4_nx.c: qla4_8xxx_device_state_handler(), earlier discussed
=> ql4_os.c: qla4_8xxx_error_recovery(), only called by
qla4xxx_pci_slot_reset(), which is bound to PCI ->slot_reset()
process-context hook
- ql4_nx.c: qla4_8xxx_device_state_handler(), earlier discussed
- ql4_os.c: qla4xxx_recover_adapter(), earlier discussed
- ql4_os.c: qla4xxx_do_dpc(), earlier discussed
Remove the in_interrupt() check. Mark, qla4_82xx_idc_lock(), and the
->idc_lock() hook itself, with "Context: task, can sleep".
Change qla4_82xx_idc_lock() implementation to sleep 100ms, instead of a
schedule(), for each spin. This is more deterministic, and it matches other
PCI HW locking functions in the driver.
Link: https://lore.kernel.org/r/20201126132952.2287996-8-bigeasy@linutronix.de
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Manish Rangankar <mrangankar@marvell.com>
Cc: <GR-QLogic-Storage-Upstream@marvell.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
qla4_82xx_crb_win_lock() spins on a certain hardware state until it's
updated. At the end of each spin, if in_interrupt() is true, it does 20
loops of cpu_relax(). Otherwise, it yields the CPU.
The in_interrupt() macro is ill-defined as it does not provide what the
name suggests, and it does not catch the intended use-case here.
qla4_82xx_crb_win_lock() is always invoked with scsi_qla_host::hw_lock
acquired, with disabled interrupts. If the caller is in process context, as
in qla4_82xx_need_reset_handler(), then in_interrupt() will return false
even though it is not allowed to call schedule().
Remove the in_interrupt() check.
Change qla4_82xx_crb_win_lock() specification to a purely atomic
function. Mark it as static, remove its forward declaration, and move it
above its callers. To avoid hammering the PCI bus while spinning, use a 10
micro-second delay instead of cpu_relax().
Link: https://lore.kernel.org/r/20201126132952.2287996-4-bigeasy@linutronix.de
Fixes: f4f5df23bf ("[SCSI] qla4xxx: Added support for ISP82XX")
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Manish Rangankar <mrangankar@marvell.com>
Cc: <GR-QLogic-Storage-Upstream@marvell.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The variable rval has been initialized with 'QLA_ERROR'. The assignment is
redundant in an error path. Remove it.
Link: https://lore.kernel.org/r/20201103120137.109717-1-jingxiangfeng@huawei.com
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The set of core changes here is Christoph's submission path cleanups.
These introduced a couple of regressions when first proposed so they
got held over from the initial merge window pull request to give more
testing time, which they've now had and Syzbot has confirmed the
regression it detected is fixed. The other main changes are two
driver updates (arcmsr, pm80xx) and assorted minor clean ups.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"The set of core changes here is Christoph's submission path cleanups.
These introduced a couple of regressions when first proposed so they
got held over from the initial merge window pull request to give more
testing time, which they've now had and Syzbot has confirmed the
regression it detected is fixed.
The other main changes are two driver updates (arcmsr, pm80xx) and
assorted minor clean ups"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (38 commits)
scsi: qla2xxx: Fix return of uninitialized value in rval
scsi: core: Set sc_data_direction to DMA_NONE for no-transfer commands
scsi: sr: Initialize ->cmd_len
scsi: arcmsr: Update driver version to v1.50.00.02-20200819
scsi: arcmsr: Add support for ARC-1886 series RAID controllers
scsi: arcmsr: Fix device hot-plug monitoring timer stop
scsi: arcmsr: Remove unnecessary syntax
scsi: pm80xx: Driver version update
scsi: pm80xx: Increase the number of outstanding I/O supported to 1024
scsi: pm80xx: Remove DMA memory allocation for ccb and device structures
scsi: pm80xx: Increase number of supported queues
scsi: sym53c8xx_2: Fix sizeof() mismatch
scsi: isci: Fix a typo in a comment
scsi: qla4xxx: Fix inconsistent format argument type
scsi: myrb: Fix inconsistent format argument types
scsi: myrb: Remove redundant assignment to variable timeout
scsi: bfa: Fix error return in bfad_pci_init()
scsi: fcoe: Simplify the return expression of fcoe_sysfs_setup()
scsi: snic: Simplify the return expression of svnic_cq_alloc()
scsi: fnic: Simplify the return expression of vnic_wq_copy_alloc()
...
Here are some SPDX-specific changes for 5.10-rc1.
They include:
- driver fixes to make spdxcheck.pl work properly
- add GFDL licenses as "deprecated" but required due to some of
our documentation using them
- add Zlib license as "deprecated" but required because we have
code with this license in the tree.
- convert some drivers to have SPDX identifiers that previously
didn't have them.
All have been in linux-next for a very long time with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX updates from Greg KH:
"Here are some SPDX-specific changes for 5.10-rc1.
They include:
- driver fixes to make spdxcheck.pl work properly
- add GFDL licenses as "deprecated" but required due to some of our
documentation using them
- add Zlib license as "deprecated" but required because we have code
with this license in the tree.
- convert some drivers to have SPDX identifiers that previously
didn't have them.
All have been in linux-next for a very long time with no reported
issues"
* tag 'spdx-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
scripts/spdxcheck.py: handle license identifiers in XML comments
net/mlx5: IPsec: make spdxcheck.py happy
LICENSES/deprecated: add Zlib license text
LICENSE: add GFDL deprecated licenses
net/qla3xxx: Convert to SPDX license identifiers
net/qlge: Convert to SPDX license identifiers
net/qlcnic: Convert to SPDX license identifiers
scsi/qla2xxx: Convert to SPDX license identifiers
scsi/qla4xxx: Convert to SPDX license identifiers
This series consists of the usual driver updates (ufs, qla2xxx, tcmu,
ibmvfc, lpfc, smartpqi, hisi_sas, qedi, qedf, mpt3sas) and minor bug
fixes. There are only three core changes: adding sense codes,
cleaning up noretry and adding an option for limitless retries.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"The usual driver updates (ufs, qla2xxx, tcmu, ibmvfc, lpfc, smartpqi,
hisi_sas, qedi, qedf, mpt3sas) and minor bug fixes.
There are only three core changes: adding sense codes, cleaning up
noretry and adding an option for limitless retries"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (226 commits)
scsi: hisi_sas: Recover PHY state according to the status before reset
scsi: hisi_sas: Filter out new PHY up events during suspend
scsi: hisi_sas: Add device link between SCSI devices and hisi_hba
scsi: hisi_sas: Add check for methods _PS0 and _PR0
scsi: hisi_sas: Add controller runtime PM support for v3 hw
scsi: hisi_sas: Switch to new framework to support suspend and resume
scsi: hisi_sas: Use hisi_hba->cq_nvecs for calling calling synchronize_irq()
scsi: qedf: Remove redundant assignment to variable 'rc'
scsi: lpfc: Remove unneeded variable 'status' in lpfc_fcp_cpu_map_store()
scsi: snic: Convert to use DEFINE_SEQ_ATTRIBUTE macro
scsi: qla4xxx: Delete unneeded variable 'status' in qla4xxx_process_ddb_changed
scsi: sun_esp: Use module_platform_driver to simplify the code
scsi: sun3x_esp: Use module_platform_driver to simplify the code
scsi: sni_53c710: Use module_platform_driver to simplify the code
scsi: qlogicpti: Use module_platform_driver to simplify the code
scsi: mac_esp: Use module_platform_driver to simplify the code
scsi: jazz_esp: Use module_platform_driver to simplify the code
scsi: mvumi: Fix error return in mvumi_io_attach()
scsi: lpfc: Drop nodelist reference on error in lpfc_gen_req()
scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs()
...
Fix the following warning:
[drivers/scsi/qla4xxx/ql4_nx.c:3228]: (warning) %ld in format string (no. 1)
requires 'long' but the argument type is 'unsigned long'.
Link: https://lore.kernel.org/r/20200930022228.2840587-1-yebin10@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes coccicheck warning:
drivers/scsi/qla4xxx/ql4_init.c:1173:5-11: Unneeded variable: "status". Return "QLA_ERROR" on line 1195
Link: https://lore.kernel.org/r/20200916022749.348923-1-yebin10@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
All files in this driver directory contain the following notice:
See LICENSE.qla4xxx for copyright and licensing details.
LICENSE.qla4xxx can be found in Documentation/scsi/. The file contains:
- A copyright notice
This copyright notice is redundant as all files contain the same
copyright notice already
- A license notice
You may modify and redistribute the device driver code under the
GNU General Public License (a copy of which is attached hereto as
Exhibit A) published by the Free Software Foundation (version 2).
- The full GPLv2 license text
This can be replaced with the corresponding SPDX license identifier
(GPL-2.0-only) in the source files which reference this license
file.
- The full GPLv2 license text
A redundant copy of LICENSES/preferred/GPL-2.0
Remove the notices and add the SPDX license identifier GPL-2.0-only to the
source files.
Finally remove the now redundant LICENSE.qla4xxx file.
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Update the size used in 'dma_free_coherent()' in order to match the one
used in the corresponding 'dma_alloc_coherent()'.
Link: https://lore.kernel.org/r/20200802101527.676054-1-christophe.jaillet@wanadoo.fr
Fixes: 4161cee52d ("[SCSI] qla4xxx: Add host statistics support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes the following W=1 kernel build warning(s):
drivers/scsi/qla4xxx/ql4_bsg.c:811: warning: Function parameter or member 'bsg_job' not described in 'qla4xxx_process_vendor_specific'
drivers/scsi/qla4xxx/ql4_bsg.c:811: warning: Excess function parameter 'job' description in 'qla4xxx_process_vendor_specific'
drivers/scsi/qla4xxx/ql4_bsg.c:858: warning: Function parameter or member 'bsg_job' not described in 'qla4xxx_bsg_request'
drivers/scsi/qla4xxx/ql4_bsg.c:858: warning: Excess function parameter 'job' description in 'qla4xxx_bsg_request'
Link: https://lore.kernel.org/r/20200723122446.1329773-18-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@qlogic.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes the following W=1 kernel build warning(s):
drivers/scsi/qla4xxx/ql4_83xx.c: In function ‘qla4_83xx_dump_pause_control_regs’:
drivers/scsi/qla4xxx/ql4_83xx.c:1409:9: warning: variable ‘status’ set but not used [-Wunused-but-set-variable]
1409 | int i, status = QLA_SUCCESS;
| ^~~~~~
Link: https://lore.kernel.org/r/20200723122446.1329773-15-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@qlogic.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Demote other headers which are clearly not kerneldoc.
Fixes the following W=1 kernel build warning(s):
drivers/scsi/qla4xxx/ql4_nx.c:983: warning: Function parameter or member 'ha' not described in 'qla4_82xx_pinit_from_rom'
drivers/scsi/qla4xxx/ql4_nx.c:983: warning: Function parameter or member 'verbose' not described in 'qla4_82xx_pinit_from_rom'
drivers/scsi/qla4xxx/ql4_nx.c:3225: warning: Function parameter or member 'code' not described in 'qla4_8xxx_uevent_emit'
drivers/scsi/qla4xxx/ql4_nx.c:3697: warning: Function parameter or member 'ha' not described in 'qla4_82xx_read_optrom_data'
drivers/scsi/qla4xxx/ql4_nx.c:3697: warning: Function parameter or member 'buf' not described in 'qla4_82xx_read_optrom_data'
drivers/scsi/qla4xxx/ql4_nx.c:3697: warning: Function parameter or member 'offset' not described in 'qla4_82xx_read_optrom_data'
drivers/scsi/qla4xxx/ql4_nx.c:3697: warning: Function parameter or member 'length' not described in 'qla4_82xx_read_optrom_data'
Link: https://lore.kernel.org/r/20200721164148.2617584-34-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@qlogic.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes the following W=1 kernel build warning(s):
drivers/scsi/qla4xxx/ql4_nx.c: In function ‘qla4_84xx_minidump_process_rddfe’:
drivers/scsi/qla4xxx/ql4_nx.c:2648:23: warning: variable ‘data_size’ set but not used [-Wunused-but-set-variable]
2648 | uint32_t poll, mask, data_size, modify_mask;
| ^~~~~~~~~
drivers/scsi/qla4xxx/ql4_nx.c: In function ‘qla4_84xx_minidump_process_rdmdio’:
drivers/scsi/qla4xxx/ql4_nx.c:2745:11: warning: variable ‘poll’ set but not used [-Wunused-but-set-variable]
2745 | uint32_t poll, mask;
| ^~~~
drivers/scsi/qla4xxx/ql4_nx.c: In function ‘qla4_84xx_minidump_process_pollwr’:
drivers/scsi/qla4xxx/ql4_nx.c:2816:47: warning: variable ‘mask’ set but not used [-Wunused-but-set-variable]
2816 | uint32_t addr1, addr2, value1, value2, poll, mask, r_value;
| ^~~~
Link: https://lore.kernel.org/r/20200721164148.2617584-33-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@qlogic.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix one formatting issue, one misspelling and three missing descriptions.
Fixes the following W=1 kernel build warning(s):
drivers/scsi/qla4xxx/ql4_isr.c:588: warning: Excess function parameter 'ret' description in 'qla4_83xx_loopback_in_progress'
drivers/scsi/qla4xxx/ql4_isr.c:661: warning: Function parameter or member 'mbox_status' not described in 'qla4xxx_isr_decode_mailbox'
drivers/scsi/qla4xxx/ql4_isr.c:661: warning: Excess function parameter 'mailbox_status' description in 'qla4xxx_isr_decode_mailbox'
drivers/scsi/qla4xxx/ql4_isr.c:1053: warning: Function parameter or member 'intr_status' not described in 'qla4_82xx_interrupt_service_routine'
drivers/scsi/qla4xxx/ql4_isr.c:1078: warning: Function parameter or member 'intr_status' not described in 'qla4xxx_interrupt_service_routine'
Link: https://lore.kernel.org/r/20200721164148.2617584-28-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@qlogic.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes the following W=1 kernel build warning(s):
drivers/scsi/qla4xxx/ql4_os.c:4551: warning: Function parameter or member 't' not described in 'qla4xxx_timer'
drivers/scsi/qla4xxx/ql4_os.c:4551: warning: Excess function parameter 'ha' description in 'qla4xxx_timer'
drivers/scsi/qla4xxx/ql4_os.c:5312: warning: Function parameter or member 'work' not described in 'qla4xxx_do_dpc'
drivers/scsi/qla4xxx/ql4_os.c:5312: warning: Excess function parameter 'data' description in 'qla4xxx_do_dpc'
drivers/scsi/qla4xxx/ql4_os.c:8627: warning: Function parameter or member 'ent' not described in 'qla4xxx_probe_adapter'
drivers/scsi/qla4xxx/ql4_os.c:8627: warning: Excess function parameter 'pci_device_id' description in 'qla4xxx_probe_adapter'
drivers/scsi/qla4xxx/ql4_os.c:9008: warning: Function parameter or member 'pdev' not described in 'qla4xxx_remove_adapter'
drivers/scsi/qla4xxx/ql4_os.c:9008: warning: Excess function parameter 'pci_dev' description in 'qla4xxx_remove_adapter'
drivers/scsi/qla4xxx/ql4_os.c:9181: warning: Function parameter or member 'stgt' not described in 'qla4xxx_eh_wait_for_commands'
drivers/scsi/qla4xxx/ql4_os.c:9181: warning: Function parameter or member 'sdev' not described in 'qla4xxx_eh_wait_for_commands'
drivers/scsi/qla4xxx/ql4_os.c:9181: warning: Excess function parameter 't' description in 'qla4xxx_eh_wait_for_commands'
drivers/scsi/qla4xxx/ql4_os.c:9181: warning: Excess function parameter 'l' description in 'qla4xxx_eh_wait_for_commands'
drivers/scsi/qla4xxx/ql4_os.c:9646: warning: Function parameter or member 'pdev' not described in 'qla4xxx_pci_mmio_enabled'
Link: https://lore.kernel.org/r/20200721164148.2617584-27-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@qlogic.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes the following W=1 kernel build warning(s):
from drivers/scsi/qla4xxx/ql4_iocb.c:8:
drivers/scsi/qla4xxx/ql4_iocb.c:87: warning: Function parameter or member 'mrkr_mod' not described in 'qla4xxx_send_marker_iocb'
drivers/scsi/qla4xxx/ql4_iocb.c:87: warning: Excess function parameter 'marker_type' description in 'qla4xxx_send_marker_iocb'
Link: https://lore.kernel.org/r/20200721164148.2617584-23-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@qlogic.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
