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path: root/drivers/firmware/iscsi_ibft.c
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* ibft: Deprecate pci_get_bus_and_slot()Sinan Kaya2018-01-121-2/+3
| | | | | | | | | | | | | | | | pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as where a PCI device is present. This restricts the device drivers to be reused for other domain numbers. Getting ready to remove pci_get_bus_and_slot() function in favor of pci_get_domain_bus_and_slot(). We don't search for the device in other domains than zero. This is because on x86 platforms the BIOS executes only devices which are in domain 0. Furthermore, the iBFT spec doesn't have a domain id field. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: Bjorn Helgaas <helgaas@kernel.org> Acked-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
* ibft: Expose iBFT acpi header via sysfsDavid Bond2016-05-161-1/+65
| | | | | | | | | | | | | | | | | | | | | | Some ethernet adapter vendors are supplying products which support optional (payed license) features. On some adapters this includes a hardware iscsi initiator. The same adapters in a normal (no extra licenses) mode of operation can be used as a software iscsi initiator. In addition, software iscsi boot initiators are becoming a standard part of many vendors uefi implementations. This is creating difficulties during early boot/install determining the proper configuration method for these adapters when they are used as a boot device. The attached patch creates sysfs entries to expose information from the acpi header of the ibft table. This information allows for a method to easily determining if an ibft table was created by a ethernet card's firmware or the system uefi/bios. In the case of a hardware initiator this information in combination with the pci vendor and device id can be used to ascertain any vendor specific behaviors that need to be accommodated. Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: David Bond <dbond@suse.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* iscsi_ibft: Add prefix-len attr and display netmaskHannes Reinecke2016-05-161-0/+4
| | | | | | | | | | | | | | | | | | | | The iBFT table only specifies a prefix length, not a netmask. And the netmask is pretty much pointless for IPv6. So introduce a new attribute 'prefix-len'. Some older user-space code might rely on the netmask attribute being present, so we should always display it. Changes from v1: - Combined two patches into one Changes from v2: - Cleaned up/corrected wording for patch description Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Lee Duncan <lduncan@suse.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
* iscsi_ibft: filter null v4-mapped v6 addressesChris Leech2015-06-061-15/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | I've had reports of UEFI platforms failing iSCSI boot in various configurations, that ended up being caused by network initialization scripts getting tripped up by unexpected null addresses (0.0.0.0) being reported for gateways, dhcp servers, and dns servers. The tianocore EDK2 iSCSI driver generates an iBFT table that always uses IPv4-mapped IPv6 addresses for the NIC structure fields. This results in values that are "not present or not specified" being reported as ::ffff:0.0.0.0 rather than all zeros as specified. The iscsi_ibft module filters unspecified fields from the iBFT from sysfs, preventing userspace from using invalid values and making it easy to check for the presence of a value. This currently fails in regard to these mapped null addresses. In order to remain consistent with how the iBFT information is exposed, we should accommodate the behavior of the tianocore iSCSI driver as it's already in the wild in a large number of servers. Tested under qemu using an OVMF build of tianocore EDK2. Signed-off-by: Chris Leech <cleech@redhat.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* iscsi_ibft: Fix finding Broadcom specific ibft signVikas Chaudhary2014-05-131-0/+1
| | | | | | | | | | | | | | | Search for Broadcom specific ibft sign "BIFT" along with other possible values on UEFI This patch is fix for regression introduced in “935a9fee51c945b8942be2d7b4bae069167b4886”. https://lkml.org/lkml/2011/12/16/353 This impacts Broadcom CNA for iSCSI Boot on UEFI platform. Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu>
* switch ->is_visible() to returning umode_tAl Viro2012-01-041-6/+6
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ibft: Fix finding IBFT ACPI table on UEFIYinghai Lu2011-12-131-2/+40
| | | | | | | | | | | | | | | | | | | | | | Found one system with UEFI/iBFT, kernel does not detect the iBFT during iscsi_ibft module loading. Root cause: on x86 (UEFI), we are calling of find_ibft_region() much earlier - specifically in setup_arch() before ACPI is enabled. Try to split acpi checking code out and call that later At that time ACPI iBFT already get permanent mapped with ioremap. So isa_virt_to_bus() will get wrong phys from right virt address. We could just skip that phys address printing. For legacy one, print the found address early. -v2: update comments and description according to Konrad. -v3: fix problem about module use case that is found by Konrad. -v4: use acpi_get_table() instead of acpi_table_parse() to handle module use case that is found by Konrad again.. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
* [SCSI] iscsi_ibft, be2iscsi, iscsi_boot: fix boot kobj data lifetime managementMike Christie2011-06-291-3/+11
| | | | | | | | | | | | | | | | be2iscsi passes the boot functions its phba object which is allocated in the shost, but iscsi_ibft passes in a object allocated for each item to display. The problem is that iscsi_boot_sysfs was managing the lifetime of the object passed in and doing a kfree on release. This causes a double free for be2iscsi which frees the shost in its pci_remove. This patch fixes the problem by adding a release callback which the drivers can call kfree or a put() type of function (needed for be2iscsi which will do a get/put on the shost). Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* treewide: cleanup continuations and remove logging message whitespaceJoe Perches2011-04-261-2/+2
| | | | | | | | | | | | | | Using C line continuation inside format strings is error prone. Clean up the unintended whitespace introduced by misuse of \. Neaten correctly used line continations as well for consistency. drivers/scsi/arcmsr/arcmsr_hba.c has these errors as well, but arcmsr needs a lot more work and the driver should likely be moved to staging instead. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* ibft: Kernel oops when rmmoding iscsi_ibft with no iBFT present.Konrad Rzeszutek Wilk2010-08-111-2/+4
| | | | | | | | | | | | | We failed to check to see if actually allocated structures to contain the iBFT structure and went ahead to dereference it. This patch fixes the OOPS. Reported-by: "Jayamohan Kalickal" <jayamohank@serverengines.com>   Tested-by: "Jayamohan Kalickal" <jayamohank@serverengines.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org> Signed-off-by: Peter Jones <pjones@redhat.com>  
* ibft: convert iscsi_ibft module to iscsi boot libMike Christie2010-05-111-451/+247Star
| | | | | | | | | This patch just converts the iscsi_ibft module to the iscsi boot sysfs lib module. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org> Signed-off-by: Peter Jones <pjones@redhat.com>
* ibft: Update iBFT handling for v1.03 of the spec.Peter Jones2010-05-111-12/+18
| | | | | | | | | | | | - Use struct acpi_table_ibft instead of struct ibft_table_header - Don't do reserve_ibft_region() on UEFI machines (section 1.4.3.1) - If ibft_addr isn't initialized when ibft_init() is called, check for ACPI-based tables. - Fix compiler error when CONFIG_ACPI is not defined. Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org> Signed-off-by: Peter Jones <pjones@redhat.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
* Driver core: Constify struct sysfs_ops in struct kobj_typeEmese Revfy2010-03-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Constify struct sysfs_ops. This is part of the ops structure constification effort started by Arjan van de Ven et al. Benefits of this constification: * prevents modification of data that is shared (referenced) by many other structure instances at runtime * detects/prevents accidental (but not intentional) modification attempts on archs that enforce read-only kernel data at runtime * potentially better optimized code as the compiler can assume that the const data cannot be changed * the compiler/linker move const data into .rodata and therefore exclude them from false sharing Signed-off-by: Emese Revfy <re.emese@gmail.com> Acked-by: David Teigland <teigland@redhat.com> Acked-by: Matt Domsch <Matt_Domsch@dell.com> Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Acked-by: Hans J. Koch <hjk@linutronix.de> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Jens Axboe <jens.axboe@oracle.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller2010-03-011-5/+3Star
|\ | | | | | | | | Conflicts: drivers/firmware/iscsi_ibft.c
| * drivers/firmware/iscsi_ibft.c: remove NIPQUAD_FMT, use %pI4Joe Perches2010-02-261-5/+3Star
| | | | | | | | | | | | | | | | | | | | | | Convert netmask to __be32 and format it with %pI4 Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Konrad Rzeszutek <ketuzsezr@darnok.org> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Peter Jones <pjones@redhat.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* | drivers/firmware/iscsi_ibft.c: use %pM to show MAC addresshartleys2010-01-071-5/+1Star
|/ | | | | | | | | | | Use the %pM kernel extension to display the MAC address. Also, remove the 'mac' variable and use nic->mac directly. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Peter Jones <pjones@redhat.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* iSCSI/iBFT: use proper address translationJan Beulich2009-10-051-1/+1
| | | | | | | | | | | | | | | In virtual environments (namely, Xen Dom0) virt <-> phys and virt <-> isa-bus translations cannot be freely interchanged (and even outside such environments it is not really correct to do so). When looking at memory below 1M, the latter translations should always be used. iscsi_ibft_find.c part from: Martin Wilck <martin.wilck@ts.fujitsu.com>. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Peter Jones <pjones@redhat.com> Signed-off-by: Konrad Rzeszutek Wilk <ketuzsezs@darnok.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ibft: fix the display of a few fields in the NIC attribute structure in sysfsAshutosh Naik2009-05-031-2/+2
| | | | | | | | | | | | | | | | Fix the display of a few fields in the iBFT NIC attribute structure in sysfs. Ensure that, if the DHCP IP address and the subnet mask for the interface is present in the iBFT NIC structure, the corresponding entries are created in sysfs tree for the device. This would hence create the additional entries in the tree based on the iBFT table and would not delete any existing entries. Signed-off-by: Ashutosh Naik <ashutosh.naik@gmail.com> Cc: Vishnu V <vishnu@chelsio.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* iscsi_ibft.c fix compilation warningJaswinder Singh Rajput2009-02-111-2/+2
| | | | | | | | drivers/firmware/iscsi_ibft.c: In function ‘ibft_init’: drivers/firmware/iscsi_ibft.c:942: warning: format ‘%lx’ expects type ‘long unsigned int’, but argument 2 has type ‘phys_addr_t’ Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* drivers: replace NIPQUAD()Harvey Harrison2008-10-311-2/+1Star
| | | | | | | | Using NIPQUAD() with NIPQUAD_FMT, %d.%d.%d.%d or %u.%u.%u.%u can be replaced with %pI4 Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: replace %p6 with %pI6Harvey Harrison2008-10-291-1/+1
| | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* misc: replace NIP6_FMT with %p6 format specifierHarvey Harrison2008-10-291-3/+1Star
| | | | | | | | | | | | The iscsi_ibft.c changes are almost certainly a bugfix as the pointer 'ip' is a u8 *, so they never print the last 8 bytes of the IPv6 address, and the eight bytes they do print have a zero byte with them in each 16-bit word. Other than that, this should cause no difference in functionality. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* x86: sysfs: kill owner field from attributeParag Warudkar2008-10-201-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tejun's commit 7b595756ec1f49e0049a9e01a1298d53a7faaa15 made sysfs attribute->owner unnecessary. But the field was left in the structure to ease the merge. It's been over a year since that change and it is now time to start killing attribute->owner along with its users - one arch at a time! This patch is attempt #1 to get rid of attribute->owner only for CONFIG_X86_64 or CONFIG_X86_32 . We will deal with other arches later on as and when possible - avr32 will be the next since that is something I can test. Compile (make allyesconfig / make allmodconfig / custom config) and boot tested. akpm: the idea is that we put the declaration of sttribute.owner inside `#ifndef CONFIG_X86'. But that proved to be too ambitious for now because new usages kept on turning up in subsystem trees. [akpm: remove the ifdef for now] Signed-off-by: Parag Warudkar <parag.lkml@gmail.com> Cc: Greg KH <greg@kroah.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Tejun Heo <htejun@gmail.com> Cc: Len Brown <lenb@kernel.org> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: David Brownell <david-b@pacbell.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/firmware/iscsi_ibft.c: make 3 functions staticAdrian Bunk2008-10-161-9/+9
| | | | | | | | | | | | This patch makes the following needlessly global functions static: - ibft_attr_show_initiator() - ibft_attr_show_nic() - ibft_attr_show_target() Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Konrad Rzeszutek <ketuzsezr@darnok.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ibft: fix target info parsing in ibft moduleMike Christie2008-09-031-2/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I got this patch through Red Hat's bugzilla from the bug submitter and patch creator. I have just fixed it up so it applies without fuzz to upstream kernels. Original patch and description from Shyam kumar Iyer: The issue [ibft module not displaying targets with short names] is because of an offset calculatation error in the iscsi_ibft.c code. Due to this error directory structure for the target in /sys/firmware/ibft does not get created and so the initiator is unable to connect to the target. Note that this bug surfaced only with an name that had a short section at the end. eg: "iqn.1984-05.com.dell:dell". It did not surface when the iqn's had a longer section at the end. eg: "iqn.2001-04.com.example:storage.disk2.sys1.xyz" So, the eot_offset was calculated such that an extra 48 bytes i.e. the size of the ibft_header which has already been accounted was subtracted twice. This was not evident with longer iqn names because they would overshoot the total ibft length more than 48 bytes and thus would escape the bug. Signed-off-by: Shyam Kumar Iyer <shyam_iyer@dell.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Konrad Rzeszutek <konrad@virtualiron.com> Cc: Peter Jones <pjones@redhat.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Firmware: add iSCSI iBFT SupportKonrad Rzeszutek2008-04-201-0/+982
Add /sysfs/firmware/ibft/[initiator|targetX|ethernetX] directories along with text properties which export the the iSCSI Boot Firmware Table (iBFT) structure. What is iSCSI Boot Firmware Table? It is a mechanism for the iSCSI tools to extract from the machine NICs the iSCSI connection information so that they can automagically mount the iSCSI share/target. Currently the iSCSI information is hard-coded in the initrd. The /sysfs entries are read-only one-name-and-value fields. The usual set of data exposed is: # for a in `find /sys/firmware/ibft/ -type f -print`; do echo -n "$a: "; cat $a; done /sys/firmware/ibft/target0/target-name: iqn.2007.com.intel-sbx44:storage-10gb /sys/firmware/ibft/target0/nic-assoc: 0 /sys/firmware/ibft/target0/chap-type: 0 /sys/firmware/ibft/target0/lun: 00000000 /sys/firmware/ibft/target0/port: 3260 /sys/firmware/ibft/target0/ip-addr: 192.168.79.116 /sys/firmware/ibft/target0/flags: 3 /sys/firmware/ibft/target0/index: 0 /sys/firmware/ibft/ethernet0/mac: 00:11:25:9d:8b:01 /sys/firmware/ibft/ethernet0/vlan: 0 /sys/firmware/ibft/ethernet0/gateway: 192.168.79.254 /sys/firmware/ibft/ethernet0/origin: 0 /sys/firmware/ibft/ethernet0/subnet-mask: 255.255.252.0 /sys/firmware/ibft/ethernet0/ip-addr: 192.168.77.41 /sys/firmware/ibft/ethernet0/flags: 7 /sys/firmware/ibft/ethernet0/index: 0 /sys/firmware/ibft/initiator/initiator-name: iqn.2007-07.com:konrad.initiator /sys/firmware/ibft/initiator/flags: 3 /sys/firmware/ibft/initiator/index: 0 For full details of the IBFT structure please take a look at: ftp://ftp.software.ibm.com/systems/support/system_x_pdf/ibm_iscsi_boot_firmware_table_v1.02.pdf [akpm@linux-foundation.org: fix build] Signed-off-by: Konrad Rzeszutek <konradr@linux.vnet.ibm.com> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: Peter Jones <pjones@redhat.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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