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776 Commits

Author SHA1 Message Date
Linus Torvalds
0c5c62ddf8 Merge tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci 
Pull pci updates from Bjorn Helgaas:
 "Enumeration:
   - Conserve IRQs by setting up portdrv IRQs only when there are users
     (Jan Kiszka)
   - Rework and simplify _OSC negotiation for control of PCIe features
     (Joerg Roedel)
   - Remove struct pci_dev.driver pointer since it's redundant with the
     struct device.driver pointer (Uwe Kleine-König)

  Resource management:
   - Coalesce contiguous host bridge apertures from _CRS to accommodate
     BARs that cover more than one aperture (Kai-Heng Feng)

  Sysfs:
   - Check CAP_SYS_ADMIN before parsing user input (Krzysztof
     Wilczyński)
   - Return -EINVAL consistently from "store" functions (Krzysztof
     Wilczyński)
   - Use sysfs_emit() in endpoint "show" functions to avoid buffer
     overruns (Kunihiko Hayashi)

  PCIe native device hotplug:
   - Ignore Link Down/Up caused by resets during error recovery so
     endpoint drivers can remain bound to the device (Lukas Wunner)

  Virtualization:
   - Avoid bus resets on Atheros QCA6174, where they hang the device
     (Ingmar Klein)
   - Work around Pericom PI7C9X2G switch packet drop erratum by using
     store and forward mode instead of cut-through (Nathan Rossi)
   - Avoid trying to enable AtomicOps on VFs; the PF setting applies to
     all VFs (Selvin Xavier)

  MSI:
   - Document that /sys/bus/pci/devices/.../irq contains the legacy INTx
     interrupt or the IRQ of the first MSI (not MSI-X) vector (Barry
     Song)

  VPD:
   - Add pci_read_vpd_any() and pci_write_vpd_any() to access anywhere
     in the possible VPD space; use these to simplify the cxgb3 driver
     (Heiner Kallweit)

  Peer-to-peer DMA:
   - Add (not subtract) the bus offset when calculating DMA address
     (Wang Lu)

  ASPM:
   - Re-enable LTR at Downstream Ports so they don't report Unsupported
     Requests when reset or hot-added devices send LTR messages
     (Mingchuang Qiao)

  Apple PCIe controller driver:
   - Add driver for Apple M1 PCIe controller (Alyssa Rosenzweig, Marc
     Zyngier)

  Cadence PCIe controller driver:
   - Return success when probe succeeds instead of falling into error
     path (Li Chen)

  HiSilicon Kirin PCIe controller driver:
   - Reorganize PHY logic and add support for external PHY drivers
     (Mauro Carvalho Chehab)
   - Support PERST# GPIOs for HiKey970 external PEX 8606 bridge (Mauro
     Carvalho Chehab)
   - Add Kirin 970 support (Mauro Carvalho Chehab)
   - Make driver removable (Mauro Carvalho Chehab)

  Intel VMD host bridge driver:
   - If IOMMU supports interrupt remapping, leave VMD MSI-X remapping
     enabled (Adrian Huang)
   - Number each controller so we can tell them apart in
     /proc/interrupts (Chunguang Xu)
   - Avoid building on UML because VMD depends on x86 bare metal APIs
     (Johannes Berg)

  Marvell Aardvark PCIe controller driver:
   - Define macros for PCI_EXP_DEVCTL_PAYLOAD_* (Pali Rohár)
   - Set Max Payload Size to 512 bytes per Marvell spec (Pali Rohár)
   - Downgrade PIO Response Status messages to debug level (Marek Behún)
   - Preserve CRS SV (Config Request Retry Software Visibility) bit in
     emulated Root Control register (Pali Rohár)
   - Fix issue in configuring reference clock (Pali Rohár)
   - Don't clear status bits for masked interrupts (Pali Rohár)
   - Don't mask unused interrupts (Pali Rohár)
   - Avoid code repetition in advk_pcie_rd_conf() (Marek Behún)
   - Retry config accesses on CRS response (Pali Rohár)
   - Simplify emulated Root Capabilities initialization (Pali Rohár)
   - Fix several link training issues (Pali Rohár)
   - Fix link-up checking via LTSSM (Pali Rohár)
   - Fix reporting of Data Link Layer Link Active (Pali Rohár)
   - Fix emulation of W1C bits (Marek Behún)
   - Fix MSI domain .alloc() method to return zero on success (Marek
     Behún)
   - Read entire 16-bit MSI vector in MSI handler, not just low 8 bits
     (Marek Behún)
   - Clear Root Port I/O Space, Memory Space, and Bus Master Enable bits
     at startup; PCI core will set those as necessary (Pali Rohár)
   - When operating as a Root Port, set class code to "PCI Bridge"
     instead of the default "Mass Storage Controller" (Pali Rohár)
   - Add emulation for PCI_BRIDGE_CTL_BUS_RESET since aardvark doesn't
     implement this per spec (Pali Rohár)
   - Add emulation of option ROM BAR since aardvark doesn't implement
     this per spec (Pali Rohár)

  MediaTek MT7621 PCIe controller driver:
   - Add MediaTek MT7621 PCIe host controller driver and DT binding
     (Sergio Paracuellos)

  Qualcomm PCIe controller driver:
   - Add SC8180x compatible string (Bjorn Andersson)
   - Add endpoint controller driver and DT binding (Manivannan
     Sadhasivam)
   - Restructure to use of_device_get_match_data() (Prasad Malisetty)
   - Add SC7280-specific pcie_1_pipe_clk_src handling (Prasad Malisetty)

  Renesas R-Car PCIe controller driver:
   - Remove unnecessary includes (Geert Uytterhoeven)

  Rockchip DesignWare PCIe controller driver:
   - Add DT binding (Simon Xue)

  Socionext UniPhier Pro5 controller driver:
   - Serialize INTx masking/unmasking (Kunihiko Hayashi)

  Synopsys DesignWare PCIe controller driver:
   - Run dwc .host_init() method before registering MSI interrupt
     handler so we can deal with pending interrupts left by bootloader
     (Bjorn Andersson)
   - Clean up Kconfig dependencies (Andy Shevchenko)
   - Export symbols to allow more modular drivers (Luca Ceresoli)

  TI DRA7xx PCIe controller driver:
   - Allow host and endpoint drivers to be modules (Luca Ceresoli)
   - Enable external clock if present (Luca Ceresoli)

  TI J721E PCIe driver:
   - Disable PHY when probe fails after initializing it (Christophe
     JAILLET)

  MicroSemi Switchtec management driver:
   - Return error to application when command execution fails because an
     out-of-band reset has cleared the device BARs, Memory Space Enable,
     etc (Kelvin Cao)
   - Fix MRPC error status handling issue (Kelvin Cao)
   - Mask out other bits when reading of management VEP instance ID
     (Kelvin Cao)
   - Return EOPNOTSUPP instead of ENOTSUPP from sysfs show functions
     (Kelvin Cao)
   - Add check of event support (Logan Gunthorpe)

  Miscellaneous:
   - Remove unused pci_pool wrappers, which have been replaced by
     dma_pool (Cai Huoqing)
   - Use 'unsigned int' instead of bare 'unsigned' (Krzysztof
     Wilczyński)
   - Use kstrtobool() directly, sans strtobool() wrapper (Krzysztof
     Wilczyński)
   - Fix some sscanf(), sprintf() format mismatches (Krzysztof
     Wilczyński)
   - Update PCI subsystem information in MAINTAINERS (Krzysztof
     Wilczyński)
   - Correct some misspellings (Krzysztof Wilczyński)"

* tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (137 commits)
  PCI: Add ACS quirk for Pericom PI7C9X2G switches
  PCI: apple: Configure RID to SID mapper on device addition
  iommu/dart: Exclude MSI doorbell from PCIe device IOVA range
  PCI: apple: Implement MSI support
  PCI: apple: Add INTx and per-port interrupt support
  PCI: kirin: Allow removing the driver
  PCI: kirin: De-init the dwc driver
  PCI: kirin: Disable clkreq during poweroff sequence
  PCI: kirin: Move the power-off code to a common routine
  PCI: kirin: Add power_off support for Kirin 960 PHY
  PCI: kirin: Allow building it as a module
  PCI: kirin: Add MODULE_* macros
  PCI: kirin: Add Kirin 970 compatible
  PCI: kirin: Support PERST# GPIOs for HiKey970 external PEX 8606 bridge
  PCI: apple: Set up reference clocks when probing
  PCI: apple: Add initial hardware bring-up
  PCI: of: Allow matching of an interrupt-map local to a PCI device
  of/irq: Allow matching of an interrupt-map local to an interrupt controller
  irqdomain: Make of_phandle_args_to_fwspec() generally available
  PCI: Do not enable AtomicOps on VFs
  ...
 2021-11-06 14:36:12 -07:00
Linus Torvalds
fe91c4725a 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
  ...
 2021-11-05 08:42:02 -07:00
Jakub Kicinski
e0b4f1cd36 mpt fusion: use dev_addr_set() 
Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it go through appropriate helpers.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2021-10-28 12:47:49 +01:00
Bart Van Assche
2899836f94 scsi: message: fusion: Switch to attribute groups 
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/20211012233558.4066756-6-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-10-16 21:45:53 -04:00
Bart Van Assche
1ae6d16779 scsi: message: fusion: Call scsi_done() directly 
Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Link: https://lore.kernel.org/r/20211007202923.2174984-7-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-10-16 21:28:43 -04:00
Uwe Kleine-König
a534ff3f4d scsi: message: fusion: Remove unused mpt_pci driver .probe() 'id' parameter 
The only two drivers don't make use of the id parameter, so drop it.  This
is a step toward removing pci_dev->driver.

Link: https://lore.kernel.org/r/20211004125935.2300113-9-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-10-12 17:37:15 -05:00
Christophe JAILLET
1897c5c759 scsi: message: mptfc: Switch from pci_ to dma_ API 
The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.  It has been compile
tested.

When memory is allocated in 'mptfc_GetFcDevPage0()' GFP_KERNEL can be used
because it is already used in this function and no lock is acquired in the
between.

When memory is allocated in 'mptfc_GetFcPortPage0()' and
'mptfc_GetFcPortPage1()' GFP_KERNEL can be used because they already call
'mpt_config()' which has an explicit 'might_sleep()'.

While at it, also remove some useless casting.

@@ @@
-    PCI_DMA_BIDIRECTIONAL
+    DMA_BIDIRECTIONAL

@@ @@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@ @@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@ @@
-    PCI_DMA_NONE
+    DMA_NONE

@@
expression e1, e2, e3;
@@
-    pci_alloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3;
@@
-    pci_zalloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3, e4;
@@
-    pci_free_consistent(e1, e2, e3, e4)
+    dma_free_coherent(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_sg(e1, e2, e3, e4)
+    dma_map_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_sg(e1, e2, e3, e4)
+    dma_unmap_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_device(e1, e2, e3, e4)
+    dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Link: https://lore.kernel.org/r/95afc589713ade2110e7812159ce3e9ab453ec18.1623568121.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-06-22 23:00:01 -04:00
Jiapeng Chong
96f3903c4c scsi: message: fusion: Remove redundant assignment to rc 
Variable rc is set to '-1', but this value is never read as it is
overwritten later. Hence it is a redundant assignment and can be removed.

Clean up the following clang-analyzer warning:

drivers/message/fusion/mptbase.c:6996:2: warning: Value stored to 'rc'
is never read [clang-analyzer-deadcode.DeadStores].

Link: https://lore.kernel.org/r/1620814327-25427-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-05-14 23:06:02 -04:00
Randy Dunlap
cdcda4651d scsi: message: fusion: Documentation cleanup 
Fix kernel-doc warnings, spellos, and typos.

../drivers/message/fusion/mptsas.c:432: warning: Function parameter or member 'sas_address' not described in 'mptsas_find_portinfo_by_sas_address'
../drivers/message/fusion/mptsas.c:432: warning: Excess function parameter 'handle' description in 'mptsas_find_portinfo_by_sas_address'
../drivers/message/fusion/mptsas.c:581: warning: Function parameter or member 'slot' not described in 'mptsas_add_device_component'
../drivers/message/fusion/mptsas.c:581: warning: Function parameter or member 'enclosure_logical_id' not described in 'mptsas_add_device_component'
../drivers/message/fusion/mptsas.c:678: warning: Function parameter or member 'starget' not described in 'mptsas_add_device_component_starget_ir'
../drivers/message/fusion/mptsas.c:678: warning: Excess function parameter 'channel' description in 'mptsas_add_device_component_starget_ir'
../drivers/message/fusion/mptsas.c:678: warning: Excess function parameter 'id' description in 'mptsas_add_device_component_starget_ir'
../drivers/message/fusion/mptsas.c:990: warning: Function parameter or member 'ioc' not described in 'mptsas_find_vtarget'
../drivers/message/fusion/mptsas.c:990: warning: Function parameter or member 'channel' not described in 'mptsas_find_vtarget'
../drivers/message/fusion/mptsas.c:990: warning: Function parameter or member 'id' not described in 'mptsas_find_vtarget'
../drivers/message/fusion/mptsas.c:990: warning: expecting prototype for csmisas_find_vtarget(). Prototype was for mptsas_find_vtarget() instead
../drivers/message/fusion/mptsas.c:1064: warning: Function parameter or member 'ioc' not described in 'mptsas_target_reset'
../drivers/message/fusion/mptsas.c:1064: warning: Function parameter or member 'channel' not described in 'mptsas_target_reset'
../drivers/message/fusion/mptsas.c:1064: warning: Function parameter or member 'id' not described in 'mptsas_target_reset'
../drivers/message/fusion/mptsas.c:1135: warning: Function parameter or member 'ioc' not described in 'mptsas_target_reset_queue'
../drivers/message/fusion/mptsas.c:1135: warning: Function parameter or member 'sas_event_data' not described in 'mptsas_target_reset_queue'
../drivers/message/fusion/mptsas.c:1217: warning: Function parameter or member 'mf' not described in 'mptsas_taskmgmt_complete'
../drivers/message/fusion/mptsas.c:1217: warning: Function parameter or member 'mr' not described in 'mptsas_taskmgmt_complete'
../drivers/message/fusion/mptsas.c:1311: warning: Function parameter or member 'ioc' not described in 'mptsas_ioc_reset'
../drivers/message/fusion/mptsas.c:1311: warning: Function parameter or member 'reset_phase' not described in 'mptsas_ioc_reset'
../drivers/message/fusion/mptsas.c:1311: warning: expecting prototype for mptscsih_ioc_reset(). Prototype was for mptsas_ioc_reset() instead
../drivers/message/fusion/mptsas.c:1951: warning: expecting prototype for mptsas_mptsas_eh_timed_out(). Prototype was for mptsas_eh_timed_out() instead
../drivers/message/fusion/mptsas.c:3623: warning: Function parameter or member 'fw_event' not described in 'mptsas_send_expander_event'
../drivers/message/fusion/mptsas.c:3623: warning: Excess function parameter 'ioc' description in 'mptsas_send_expander_event'
../drivers/message/fusion/mptsas.c:3623: warning: Excess function parameter 'expander_data' description in 'mptsas_send_expander_event'
../drivers/message/fusion/mptsas.c:4010: warning: Excess function parameter 'sas_address' description in 'mptsas_scan_sas_topology'
../drivers/message/fusion/mptsas.c:4783: warning: Function parameter or member 'issue_reset' not described in 'mptsas_issue_tm'
../drivers/message/fusion/mptsas.c:4856: warning: Function parameter or member 'fw_event' not described in 'mptsas_broadcast_primitive_work'
../drivers/message/fusion/mptsas.c:4856: warning: Excess function parameter 'work' description in 'mptsas_broadcast_primitive_work'

mptsas.c:984: warning: missing initial short description on line:
 * csmisas_find_vtarget
mptsas.c:993: warning: expecting prototype for csmisas_find_vtarget(). Prototype
 was for mptsas_find_vtarget() instead
mptsas.c:1053: warning: missing initial short description on line:
 * mptsas_target_reset
mptsas.c:1057: warning: contents before sections
mptsas.c:1125: warning: missing initial short description on line:
 * mptsas_target_reset_queue
mptsas.c:1131: warning: contents before sections
mptsas.c:1308: warning: missing initial short description on line:
 * mptsas_ioc_reset

Link: https://lore.kernel.org/r/20210418203259.835-1-rdunlap@infradead.org
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Cc: MPT-FusionLinux.pdl@broadcom.com
Cc: linux-scsi@vger.kernel.org
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-05-10 13:24:05 -04:00
Jiapeng Chong
cf17ff2678 scsi: message: fusion: Remove unused local variable 'vtarget' 
Fix the following gcc warning:

drivers/message/fusion/mptsas.c:783:14: warning: variable ‘vtarget’ set
but not used [-Wunused-but-set-variable].

Link: https://lore.kernel.org/r/1618207146-96542-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-04-13 01:39:12 -04:00
Jiapeng Chong
c436b41a99 scsi: message: fusion: Remove unused local variable 'status' 
Fix the following gcc warning:

drivers/message/fusion/mptbase.c:3087:9: warning: variable ‘status’ set
but not used [-Wunused-but-set-variable].

Link: https://lore.kernel.org/r/1617872780-126448-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-04-13 01:39:12 -04:00
Zhen Lei
30264737bd scsi: message: fusion: Remove unused local variable 'port' 
Fixes the following W=1 kernel build warning:

drivers/message/fusion/mptctl.c: In function ‘mptctl_gettargetinfo
drivers/message/fusion/mptctl.c:1372:7: warning: variable ‘port’ set but not used [-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20210408061851.3089-3-thunder.leizhen@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-04-13 01:00:25 -04:00
Zhen Lei
039cf38166 scsi: message: fusion: Remove unused local variable 'time_count' 
Fixes the following W=1 kernel build warning:

drivers/message/fusion/mptctl.c: In function ‘mptctl_do_taskmgmt:
drivers/message/fusion/mptctl.c:324:17: warning: variable ‘time_count’ set but not used [-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20210408061851.3089-2-thunder.leizhen@huawei.com
Fixes: 7d757f1855 ("[SCSI] mptfusion: Updated SCSI IO IOCTL error handling.")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-04-13 01:00:24 -04:00
zhouchuangao
4dec8004de scsi: message: fusion: Use BUG_ON instead of if condition followed by BUG 
BUG_ON() uses unlikely in if() which can be optimized at compile time.

Link: https://lore.kernel.org/r/1617108361-6870-1-git-send-email-zhouchuangao@vivo.com
Signed-off-by: zhouchuangao <zhouchuangao@vivo.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-04-05 23:34:36 -04:00
Gustavo A. R. Silva
4e2e619f3c scsi: message: mptlan: Replace one-element array with flexible-array member 
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].

Refactor the code according to the use of a flexible-array member in struct
_SGE_TRANSACTION32 instead of one-element array.

Also, this helps with the ongoing efforts to enable -Warray-bounds by
fixing the following warning:

  CC [M]  drivers/message/fusion/mptlan.o
drivers/message/fusion/mptlan.c: In function ‘mpt_lan_sdu_send’:
drivers/message/fusion/mptlan.c:759:28: warning: array subscript 1 is above array bounds of ‘U32[1]’ {aka ‘unsigned int[1]’} [-Warray-bounds]
  759 |  pTrans->TransactionDetails[1] = cpu_to_le32((mac[2] << 24) |
      |  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.10/process/deprecated.html#zero-length-and-one-element-arrays

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109
Link: https://lore.kernel.org/r/20210324233344.GA99059@embeddedor
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-04-01 23:03:10 -04:00
Gustavo A. R. Silva
ed46ccc7fe scsi: message: fusion: Replace one-element array with flexible-array member 
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].

Also, this helps with the ongoing efforts to enable -Warray-bounds by
fixing the following warning:

drivers/message/fusion/mptbase.c: In function ‘mptbase_reply’:
drivers/message/fusion/mptbase.c:7747:62: warning: array subscript 1 is above array bounds of ‘U32[1]’ {aka ‘unsigned int[1]’} [-Warray-bounds]
 7747 |     ioc->events[idx].data[ii] = le32_to_cpu(pEventReply->Data[ii]);
./include/uapi/linux/byteorder/little_endian.h:34:51: note: in definition of macro ‘__le32_to_cpu’
   34 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
      |                                                   ^
drivers/message/fusion/mptbase.c:7747:33: note: in expansion of macro ‘le32_to_cpu’
 7747 |     ioc->events[idx].data[ii] = le32_to_cpu(pEventReply->Data[ii]);
      |

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.10/process/deprecated.html#zero-length-and-one-element-arrays

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109
Link: https://lore.kernel.org/r/20210324230036.GA67851@embeddedor
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-04-01 23:03:00 -04:00
Arnd Bergmann
472c1cfb10 scsi: message: fusion: Avoid -Wempty-body warnings 
There are a couple of warnings in this driver when building with W=1:

drivers/message/fusion/mptbase.c: In function 'PrimeIocFifos':
drivers/message/fusion/mptbase.c:4608:65: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
 4608 |                     "restoring 64 bit addressing\n", ioc->name));
      |                                                                 ^
drivers/message/fusion/mptbase.c:4633:65: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
 4633 |                     "restoring 64 bit addressing\n", ioc->name));

The macros are slightly suboptimal since are not proper statements.
Change both versions to the usual "do { ... } while (0)" style to
make them more robust and avoid the warning.

Link: https://lore.kernel.org/r/20210322102549.278661-2-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-04-01 22:55:25 -04:00
Wang Qing
690209d5eb scsi: message: fusion: Remove unnecessary cast 
Fix the following coccicheck warning:
WARNING: casting value returned by memory allocation function is useless.

Link: https://lore.kernel.org/r/1615515483-777-1-git-send-email-wangqing@vivo.com
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-03-24 22:33:31 -04:00
Bhaskar Chowdhury
69a1709e2e scsi: fusion: Fix a typo in the file mptbase.h 
s/contets/contents/

Link: https://lore.kernel.org/r/20210317101238.2627574-1-unixbhaskar@gmail.com
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-03-18 22:27:43 -04:00
Ming Lei
8278807abd scsi: core: Add scsi_device_busy() wrapper 
Add scsi_device_busy() helper to prepare drivers for tracking device queue
depth via sbitmap_queue.

Link: https://lore.kernel.org/r/20210122023317.687987-12-ming.lei@redhat.com
Cc: Omar Sandoval <osandov@fb.com>
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Sumanesh Samanta <sumanesh.samanta@broadcom.com>
Cc: Ewan D. Milne <emilne@redhat.com>
Tested-by: Sumanesh Samanta <sumanesh.samanta@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-03-04 17:37:00 -05:00
Bjorn Helgaas
a927ec3995 scsi: message: fusion: Fix 'physical' typos 
Fix misspellings of "physical".

Link: https://lore.kernel.org/r/20210126210328.2918631-1-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-01-26 23:25:16 -05:00
Linus Torvalds
60f7c503d9 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, qla2xxx, smartpqi,
  target, zfcp, fnic, mpt3sas, ibmvfc) plus a load of cleanups, a major
  power management rework and a load of assorted minor updates.

  There are a few core updates (formatting fixes being the big one) but
  nothing major this cycle"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits)
  scsi: mpt3sas: Update driver version to 36.100.00.00
  scsi: mpt3sas: Handle trigger page after firmware update
  scsi: mpt3sas: Add persistent MPI trigger page
  scsi: mpt3sas: Add persistent SCSI sense trigger page
  scsi: mpt3sas: Add persistent Event trigger page
  scsi: mpt3sas: Add persistent Master trigger page
  scsi: mpt3sas: Add persistent trigger pages support
  scsi: mpt3sas: Sync time periodically between driver and firmware
  scsi: qla2xxx: Update version to 10.02.00.104-k
  scsi: qla2xxx: Fix device loss on 4G and older HBAs
  scsi: qla2xxx: If fcport is undergoing deletion complete I/O with retry
  scsi: qla2xxx: Fix the call trace for flush workqueue
  scsi: qla2xxx: Fix flash update in 28XX adapters on big endian machines
  scsi: qla2xxx: Handle aborts correctly for port undergoing deletion
  scsi: qla2xxx: Fix N2N and NVMe connect retry failure
  scsi: qla2xxx: Fix FW initialization error on big endian machines
  scsi: qla2xxx: Fix crash during driver load on big endian machines
  scsi: qla2xxx: Fix compilation issue in PPC systems
  scsi: qla2xxx: Don't check for fw_started while posting NVMe command
  scsi: qla2xxx: Tear down session if FW say it is down
  ...
 2020-12-16 13:34:31 -08:00
Sebastian Andrzej Siewior
817a7c9967 scsi: message: fusion: Remove in_interrupt() usage in mptsas_cleanup_fw_event_q() 
mptsas_cleanup_fw_event_q() uses in_interrupt() to determine if it is safe
to cancel a worker item.

Aside of that in_interrupt() is deprecated as it does not provide what the
name suggests. It covers more than hard/soft interrupt servicing context
and is semantically ill defined.

Looking closer there are a few problems with the current construct:

 - It could be invoked from an interrupt handler / non-blocking context
   because cancel_delayed_work() has no such restriction. Also,
   mptsas_free_fw_event() has no such restriction.

 - The list is accessed unlocked. It may dequeue a valid work-item but at
   the time of invoking cancel_delayed_work() the memory may be released or
   reused because the worker has already run.

mptsas_cleanup_fw_event_q() is invoked via mptsas_shutdown() which is
always invoked from preemtible context on device shutdown.  It is also
invoked via mptsas_ioc_reset(, MPT_IOC_POST_RESET) which is a
MptResetHandlers callback. The only caller here are mpt_SoftResetHandler(),
mpt_HardResetHandler() and mpt_Soft_Hard_ResetHandler(). All these
functions have a `sleepFlag' argument and each caller uses caller uses
`CAN_SLEEP' here and according to current documentation: | @sleepFlag:
Indicates if sleep or schedule must be called

So it is safe to sleep.

Add mptsas_hotplug_event::users member. Initialize it to one by default so
mptsas_free_fw_event() will free the memory.  mptsas_cleanup_fw_event_q()
will increment its value for items it dequeues and then it may keep a
pointer after dropping the lock.  Invoke cancel_delayed_work_sync() to
cancel the work item and wait if the worker is currently busy. Free the
memory afterwards since it owns the last reference to it.

Link: https://lore.kernel.org/r/20201126132952.2287996-15-bigeasy@linutronix.de
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Cc: MPT-FusionLinux.pdl@broadcom.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2020-12-01 00:03:54 -05:00
Thomas Gleixner
b8a5144370 scsi: message: fusion: Remove in_interrupt() usage in mpt_config() 
in_interrupt() is referenced all over the place in these drivers. Most of
these references are comments which are outdated and wrong.

Aside of that in_interrupt() is deprecated as it does not provide what the
name suggests. It covers more than hard/soft interrupt servicing context
and is semantically ill defined.

>From reading the mpt_config() code and the history this is clearly a debug
mechanism and should probably be replaced by might_sleep() or completely
removed because such checks are already in the subsequent functions.

Remove the in_interrupt() references and replace the usage in mpt_config()
with might_sleep().

Link: https://lore.kernel.org/r/20201126132952.2287996-14-bigeasy@linutronix.de
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Cc: MPT-FusionLinux.pdl@broadcom.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2020-12-01 00:03:53 -05:00
Tom Rix
b9dd44fd79 scsi: message: fusion: Remove unneeded break 
A break is not needed if it is preceded by a return.

Link: https://lore.kernel.org/r/20201019191950.10244-1-trix@redhat.com
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2020-10-26 18:23:34 -04:00